/* Everything about breakpoints, for GDB.
|
/* Everything about breakpoints, for GDB.
|
|
|
Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
|
Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
|
1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
|
1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
|
2008, 2009, 2010 Free Software Foundation, Inc.
|
2008, 2009, 2010 Free Software Foundation, Inc.
|
|
|
This file is part of GDB.
|
This file is part of GDB.
|
|
|
This program is free software; you can redistribute it and/or modify
|
This program is free software; you can redistribute it and/or modify
|
it under the terms of the GNU General Public License as published by
|
it under the terms of the GNU General Public License as published by
|
the Free Software Foundation; either version 3 of the License, or
|
the Free Software Foundation; either version 3 of the License, or
|
(at your option) any later version.
|
(at your option) any later version.
|
|
|
This program is distributed in the hope that it will be useful,
|
This program is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU General Public License for more details.
|
GNU General Public License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
#include "defs.h"
|
#include "defs.h"
|
#include "arch-utils.h"
|
#include "arch-utils.h"
|
#include <ctype.h>
|
#include <ctype.h>
|
#include "hashtab.h"
|
#include "hashtab.h"
|
#include "symtab.h"
|
#include "symtab.h"
|
#include "frame.h"
|
#include "frame.h"
|
#include "breakpoint.h"
|
#include "breakpoint.h"
|
#include "tracepoint.h"
|
#include "tracepoint.h"
|
#include "gdbtypes.h"
|
#include "gdbtypes.h"
|
#include "expression.h"
|
#include "expression.h"
|
#include "gdbcore.h"
|
#include "gdbcore.h"
|
#include "gdbcmd.h"
|
#include "gdbcmd.h"
|
#include "value.h"
|
#include "value.h"
|
#include "command.h"
|
#include "command.h"
|
#include "inferior.h"
|
#include "inferior.h"
|
#include "gdbthread.h"
|
#include "gdbthread.h"
|
#include "target.h"
|
#include "target.h"
|
#include "language.h"
|
#include "language.h"
|
#include "gdb_string.h"
|
#include "gdb_string.h"
|
#include "demangle.h"
|
#include "demangle.h"
|
#include "annotate.h"
|
#include "annotate.h"
|
#include "symfile.h"
|
#include "symfile.h"
|
#include "objfiles.h"
|
#include "objfiles.h"
|
#include "source.h"
|
#include "source.h"
|
#include "linespec.h"
|
#include "linespec.h"
|
#include "completer.h"
|
#include "completer.h"
|
#include "gdb.h"
|
#include "gdb.h"
|
#include "ui-out.h"
|
#include "ui-out.h"
|
#include "cli/cli-script.h"
|
#include "cli/cli-script.h"
|
#include "gdb_assert.h"
|
#include "gdb_assert.h"
|
#include "block.h"
|
#include "block.h"
|
#include "solib.h"
|
#include "solib.h"
|
#include "solist.h"
|
#include "solist.h"
|
#include "observer.h"
|
#include "observer.h"
|
#include "exceptions.h"
|
#include "exceptions.h"
|
#include "memattr.h"
|
#include "memattr.h"
|
#include "ada-lang.h"
|
#include "ada-lang.h"
|
#include "top.h"
|
#include "top.h"
|
#include "wrapper.h"
|
#include "wrapper.h"
|
#include "valprint.h"
|
#include "valprint.h"
|
#include "jit.h"
|
#include "jit.h"
|
#include "xml-syscall.h"
|
#include "xml-syscall.h"
|
|
|
/* readline include files */
|
/* readline include files */
|
#include "readline/readline.h"
|
#include "readline/readline.h"
|
#include "readline/history.h"
|
#include "readline/history.h"
|
|
|
/* readline defines this. */
|
/* readline defines this. */
|
#undef savestring
|
#undef savestring
|
|
|
#include "mi/mi-common.h"
|
#include "mi/mi-common.h"
|
|
|
/* Arguments to pass as context to some catch command handlers. */
|
/* Arguments to pass as context to some catch command handlers. */
|
#define CATCH_PERMANENT ((void *) (uintptr_t) 0)
|
#define CATCH_PERMANENT ((void *) (uintptr_t) 0)
|
#define CATCH_TEMPORARY ((void *) (uintptr_t) 1)
|
#define CATCH_TEMPORARY ((void *) (uintptr_t) 1)
|
|
|
/* Prototypes for local functions. */
|
/* Prototypes for local functions. */
|
|
|
static void enable_delete_command (char *, int);
|
static void enable_delete_command (char *, int);
|
|
|
static void enable_delete_breakpoint (struct breakpoint *);
|
static void enable_delete_breakpoint (struct breakpoint *);
|
|
|
static void enable_once_command (char *, int);
|
static void enable_once_command (char *, int);
|
|
|
static void enable_once_breakpoint (struct breakpoint *);
|
static void enable_once_breakpoint (struct breakpoint *);
|
|
|
static void disable_command (char *, int);
|
static void disable_command (char *, int);
|
|
|
static void enable_command (char *, int);
|
static void enable_command (char *, int);
|
|
|
static void map_breakpoint_numbers (char *, void (*)(struct breakpoint *));
|
static void map_breakpoint_numbers (char *, void (*)(struct breakpoint *));
|
|
|
static void ignore_command (char *, int);
|
static void ignore_command (char *, int);
|
|
|
static int breakpoint_re_set_one (void *);
|
static int breakpoint_re_set_one (void *);
|
|
|
static void clear_command (char *, int);
|
static void clear_command (char *, int);
|
|
|
static void catch_command (char *, int);
|
static void catch_command (char *, int);
|
|
|
static void watch_command (char *, int);
|
static void watch_command (char *, int);
|
|
|
static int can_use_hardware_watchpoint (struct value *);
|
static int can_use_hardware_watchpoint (struct value *);
|
|
|
static void break_command_1 (char *, int, int);
|
static void break_command_1 (char *, int, int);
|
|
|
static void mention (struct breakpoint *);
|
static void mention (struct breakpoint *);
|
|
|
/* This function is used in gdbtk sources and thus can not be made static. */
|
/* This function is used in gdbtk sources and thus can not be made static. */
|
struct breakpoint *set_raw_breakpoint (struct gdbarch *gdbarch,
|
struct breakpoint *set_raw_breakpoint (struct gdbarch *gdbarch,
|
struct symtab_and_line,
|
struct symtab_and_line,
|
enum bptype);
|
enum bptype);
|
|
|
static void breakpoint_adjustment_warning (CORE_ADDR, CORE_ADDR, int, int);
|
static void breakpoint_adjustment_warning (CORE_ADDR, CORE_ADDR, int, int);
|
|
|
static CORE_ADDR adjust_breakpoint_address (struct gdbarch *gdbarch,
|
static CORE_ADDR adjust_breakpoint_address (struct gdbarch *gdbarch,
|
CORE_ADDR bpaddr,
|
CORE_ADDR bpaddr,
|
enum bptype bptype);
|
enum bptype bptype);
|
|
|
static void describe_other_breakpoints (struct gdbarch *,
|
static void describe_other_breakpoints (struct gdbarch *,
|
struct program_space *, CORE_ADDR,
|
struct program_space *, CORE_ADDR,
|
struct obj_section *, int);
|
struct obj_section *, int);
|
|
|
static int breakpoint_address_match (struct address_space *aspace1,
|
static int breakpoint_address_match (struct address_space *aspace1,
|
CORE_ADDR addr1,
|
CORE_ADDR addr1,
|
struct address_space *aspace2,
|
struct address_space *aspace2,
|
CORE_ADDR addr2);
|
CORE_ADDR addr2);
|
|
|
static void breakpoints_info (char *, int);
|
static void breakpoints_info (char *, int);
|
|
|
static void breakpoint_1 (int, int);
|
static void breakpoint_1 (int, int);
|
|
|
static bpstat bpstat_alloc (const struct bp_location *, bpstat);
|
static bpstat bpstat_alloc (const struct bp_location *, bpstat);
|
|
|
static int breakpoint_cond_eval (void *);
|
static int breakpoint_cond_eval (void *);
|
|
|
static void cleanup_executing_breakpoints (void *);
|
static void cleanup_executing_breakpoints (void *);
|
|
|
static void commands_command (char *, int);
|
static void commands_command (char *, int);
|
|
|
static void condition_command (char *, int);
|
static void condition_command (char *, int);
|
|
|
static int get_number_trailer (char **, int);
|
static int get_number_trailer (char **, int);
|
|
|
void set_breakpoint_count (int);
|
void set_breakpoint_count (int);
|
|
|
typedef enum
|
typedef enum
|
{
|
{
|
mark_inserted,
|
mark_inserted,
|
mark_uninserted
|
mark_uninserted
|
}
|
}
|
insertion_state_t;
|
insertion_state_t;
|
|
|
static int remove_breakpoint (struct bp_location *, insertion_state_t);
|
static int remove_breakpoint (struct bp_location *, insertion_state_t);
|
static int remove_breakpoint_1 (struct bp_location *, insertion_state_t);
|
static int remove_breakpoint_1 (struct bp_location *, insertion_state_t);
|
|
|
static enum print_stop_action print_it_typical (bpstat);
|
static enum print_stop_action print_it_typical (bpstat);
|
|
|
static enum print_stop_action print_bp_stop_message (bpstat bs);
|
static enum print_stop_action print_bp_stop_message (bpstat bs);
|
|
|
static int watchpoint_check (void *);
|
static int watchpoint_check (void *);
|
|
|
static void maintenance_info_breakpoints (char *, int);
|
static void maintenance_info_breakpoints (char *, int);
|
|
|
static int hw_breakpoint_used_count (void);
|
static int hw_breakpoint_used_count (void);
|
|
|
static int hw_watchpoint_used_count (enum bptype, int *);
|
static int hw_watchpoint_used_count (enum bptype, int *);
|
|
|
static void hbreak_command (char *, int);
|
static void hbreak_command (char *, int);
|
|
|
static void thbreak_command (char *, int);
|
static void thbreak_command (char *, int);
|
|
|
static void watch_command_1 (char *, int, int);
|
static void watch_command_1 (char *, int, int);
|
|
|
static void rwatch_command (char *, int);
|
static void rwatch_command (char *, int);
|
|
|
static void awatch_command (char *, int);
|
static void awatch_command (char *, int);
|
|
|
static void do_enable_breakpoint (struct breakpoint *, enum bpdisp);
|
static void do_enable_breakpoint (struct breakpoint *, enum bpdisp);
|
|
|
static void stop_command (char *arg, int from_tty);
|
static void stop_command (char *arg, int from_tty);
|
|
|
static void stopin_command (char *arg, int from_tty);
|
static void stopin_command (char *arg, int from_tty);
|
|
|
static void stopat_command (char *arg, int from_tty);
|
static void stopat_command (char *arg, int from_tty);
|
|
|
static char *ep_parse_optional_if_clause (char **arg);
|
static char *ep_parse_optional_if_clause (char **arg);
|
|
|
static void catch_exception_command_1 (enum exception_event_kind ex_event,
|
static void catch_exception_command_1 (enum exception_event_kind ex_event,
|
char *arg, int tempflag, int from_tty);
|
char *arg, int tempflag, int from_tty);
|
|
|
static void tcatch_command (char *arg, int from_tty);
|
static void tcatch_command (char *arg, int from_tty);
|
|
|
static void ep_skip_leading_whitespace (char **s);
|
static void ep_skip_leading_whitespace (char **s);
|
|
|
static int single_step_breakpoint_inserted_here_p (struct address_space *,
|
static int single_step_breakpoint_inserted_here_p (struct address_space *,
|
CORE_ADDR pc);
|
CORE_ADDR pc);
|
|
|
static void free_bp_location (struct bp_location *loc);
|
static void free_bp_location (struct bp_location *loc);
|
|
|
static struct bp_location *allocate_bp_location (struct breakpoint *bpt);
|
static struct bp_location *allocate_bp_location (struct breakpoint *bpt);
|
|
|
static void update_global_location_list (int);
|
static void update_global_location_list (int);
|
|
|
static void update_global_location_list_nothrow (int);
|
static void update_global_location_list_nothrow (int);
|
|
|
static int is_hardware_watchpoint (struct breakpoint *bpt);
|
static int is_hardware_watchpoint (struct breakpoint *bpt);
|
|
|
static void insert_breakpoint_locations (void);
|
static void insert_breakpoint_locations (void);
|
|
|
static int syscall_catchpoint_p (struct breakpoint *b);
|
static int syscall_catchpoint_p (struct breakpoint *b);
|
|
|
static void tracepoints_info (char *, int);
|
static void tracepoints_info (char *, int);
|
|
|
static void delete_trace_command (char *, int);
|
static void delete_trace_command (char *, int);
|
|
|
static void enable_trace_command (char *, int);
|
static void enable_trace_command (char *, int);
|
|
|
static void disable_trace_command (char *, int);
|
static void disable_trace_command (char *, int);
|
|
|
static void trace_pass_command (char *, int);
|
static void trace_pass_command (char *, int);
|
|
|
static void skip_prologue_sal (struct symtab_and_line *sal);
|
static void skip_prologue_sal (struct symtab_and_line *sal);
|
|
|
|
|
/* Flag indicating that a command has proceeded the inferior past the
|
/* Flag indicating that a command has proceeded the inferior past the
|
current breakpoint. */
|
current breakpoint. */
|
|
|
static int breakpoint_proceeded;
|
static int breakpoint_proceeded;
|
|
|
static const char *
|
static const char *
|
bpdisp_text (enum bpdisp disp)
|
bpdisp_text (enum bpdisp disp)
|
{
|
{
|
/* NOTE: the following values are a part of MI protocol and represent
|
/* NOTE: the following values are a part of MI protocol and represent
|
values of 'disp' field returned when inferior stops at a breakpoint. */
|
values of 'disp' field returned when inferior stops at a breakpoint. */
|
static char *bpdisps[] = {"del", "dstp", "dis", "keep"};
|
static char *bpdisps[] = {"del", "dstp", "dis", "keep"};
|
return bpdisps[(int) disp];
|
return bpdisps[(int) disp];
|
}
|
}
|
|
|
/* Prototypes for exported functions. */
|
/* Prototypes for exported functions. */
|
/* If FALSE, gdb will not use hardware support for watchpoints, even
|
/* If FALSE, gdb will not use hardware support for watchpoints, even
|
if such is available. */
|
if such is available. */
|
static int can_use_hw_watchpoints;
|
static int can_use_hw_watchpoints;
|
|
|
static void
|
static void
|
show_can_use_hw_watchpoints (struct ui_file *file, int from_tty,
|
show_can_use_hw_watchpoints (struct ui_file *file, int from_tty,
|
struct cmd_list_element *c,
|
struct cmd_list_element *c,
|
const char *value)
|
const char *value)
|
{
|
{
|
fprintf_filtered (file, _("\
|
fprintf_filtered (file, _("\
|
Debugger's willingness to use watchpoint hardware is %s.\n"),
|
Debugger's willingness to use watchpoint hardware is %s.\n"),
|
value);
|
value);
|
}
|
}
|
|
|
/* If AUTO_BOOLEAN_FALSE, gdb will not attempt to create pending breakpoints.
|
/* If AUTO_BOOLEAN_FALSE, gdb will not attempt to create pending breakpoints.
|
If AUTO_BOOLEAN_TRUE, gdb will automatically create pending breakpoints
|
If AUTO_BOOLEAN_TRUE, gdb will automatically create pending breakpoints
|
for unrecognized breakpoint locations.
|
for unrecognized breakpoint locations.
|
If AUTO_BOOLEAN_AUTO, gdb will query when breakpoints are unrecognized. */
|
If AUTO_BOOLEAN_AUTO, gdb will query when breakpoints are unrecognized. */
|
static enum auto_boolean pending_break_support;
|
static enum auto_boolean pending_break_support;
|
static void
|
static void
|
show_pending_break_support (struct ui_file *file, int from_tty,
|
show_pending_break_support (struct ui_file *file, int from_tty,
|
struct cmd_list_element *c,
|
struct cmd_list_element *c,
|
const char *value)
|
const char *value)
|
{
|
{
|
fprintf_filtered (file, _("\
|
fprintf_filtered (file, _("\
|
Debugger's behavior regarding pending breakpoints is %s.\n"),
|
Debugger's behavior regarding pending breakpoints is %s.\n"),
|
value);
|
value);
|
}
|
}
|
|
|
/* If 1, gdb will automatically use hardware breakpoints for breakpoints
|
/* If 1, gdb will automatically use hardware breakpoints for breakpoints
|
set with "break" but falling in read-only memory.
|
set with "break" but falling in read-only memory.
|
If 0, gdb will warn about such breakpoints, but won't automatically
|
If 0, gdb will warn about such breakpoints, but won't automatically
|
use hardware breakpoints. */
|
use hardware breakpoints. */
|
static int automatic_hardware_breakpoints;
|
static int automatic_hardware_breakpoints;
|
static void
|
static void
|
show_automatic_hardware_breakpoints (struct ui_file *file, int from_tty,
|
show_automatic_hardware_breakpoints (struct ui_file *file, int from_tty,
|
struct cmd_list_element *c,
|
struct cmd_list_element *c,
|
const char *value)
|
const char *value)
|
{
|
{
|
fprintf_filtered (file, _("\
|
fprintf_filtered (file, _("\
|
Automatic usage of hardware breakpoints is %s.\n"),
|
Automatic usage of hardware breakpoints is %s.\n"),
|
value);
|
value);
|
}
|
}
|
|
|
/* If on, gdb will keep breakpoints inserted even as inferior is
|
/* If on, gdb will keep breakpoints inserted even as inferior is
|
stopped, and immediately insert any new breakpoints. If off, gdb
|
stopped, and immediately insert any new breakpoints. If off, gdb
|
will insert breakpoints into inferior only when resuming it, and
|
will insert breakpoints into inferior only when resuming it, and
|
will remove breakpoints upon stop. If auto, GDB will behave as ON
|
will remove breakpoints upon stop. If auto, GDB will behave as ON
|
if in non-stop mode, and as OFF if all-stop mode.*/
|
if in non-stop mode, and as OFF if all-stop mode.*/
|
|
|
static const char always_inserted_auto[] = "auto";
|
static const char always_inserted_auto[] = "auto";
|
static const char always_inserted_on[] = "on";
|
static const char always_inserted_on[] = "on";
|
static const char always_inserted_off[] = "off";
|
static const char always_inserted_off[] = "off";
|
static const char *always_inserted_enums[] = {
|
static const char *always_inserted_enums[] = {
|
always_inserted_auto,
|
always_inserted_auto,
|
always_inserted_off,
|
always_inserted_off,
|
always_inserted_on,
|
always_inserted_on,
|
NULL
|
NULL
|
};
|
};
|
static const char *always_inserted_mode = always_inserted_auto;
|
static const char *always_inserted_mode = always_inserted_auto;
|
static void
|
static void
|
show_always_inserted_mode (struct ui_file *file, int from_tty,
|
show_always_inserted_mode (struct ui_file *file, int from_tty,
|
struct cmd_list_element *c, const char *value)
|
struct cmd_list_element *c, const char *value)
|
{
|
{
|
if (always_inserted_mode == always_inserted_auto)
|
if (always_inserted_mode == always_inserted_auto)
|
fprintf_filtered (file, _("\
|
fprintf_filtered (file, _("\
|
Always inserted breakpoint mode is %s (currently %s).\n"),
|
Always inserted breakpoint mode is %s (currently %s).\n"),
|
value,
|
value,
|
breakpoints_always_inserted_mode () ? "on" : "off");
|
breakpoints_always_inserted_mode () ? "on" : "off");
|
else
|
else
|
fprintf_filtered (file, _("Always inserted breakpoint mode is %s.\n"), value);
|
fprintf_filtered (file, _("Always inserted breakpoint mode is %s.\n"), value);
|
}
|
}
|
|
|
int
|
int
|
breakpoints_always_inserted_mode (void)
|
breakpoints_always_inserted_mode (void)
|
{
|
{
|
return (always_inserted_mode == always_inserted_on
|
return (always_inserted_mode == always_inserted_on
|
|| (always_inserted_mode == always_inserted_auto && non_stop));
|
|| (always_inserted_mode == always_inserted_auto && non_stop));
|
}
|
}
|
|
|
void _initialize_breakpoint (void);
|
void _initialize_breakpoint (void);
|
|
|
/* Are we executing breakpoint commands? */
|
/* Are we executing breakpoint commands? */
|
static int executing_breakpoint_commands;
|
static int executing_breakpoint_commands;
|
|
|
/* Are overlay event breakpoints enabled? */
|
/* Are overlay event breakpoints enabled? */
|
static int overlay_events_enabled;
|
static int overlay_events_enabled;
|
|
|
/* Walk the following statement or block through all breakpoints.
|
/* Walk the following statement or block through all breakpoints.
|
ALL_BREAKPOINTS_SAFE does so even if the statment deletes the current
|
ALL_BREAKPOINTS_SAFE does so even if the statment deletes the current
|
breakpoint. */
|
breakpoint. */
|
|
|
#define ALL_BREAKPOINTS(B) for (B = breakpoint_chain; B; B = B->next)
|
#define ALL_BREAKPOINTS(B) for (B = breakpoint_chain; B; B = B->next)
|
|
|
#define ALL_BREAKPOINTS_SAFE(B,TMP) \
|
#define ALL_BREAKPOINTS_SAFE(B,TMP) \
|
for (B = breakpoint_chain; \
|
for (B = breakpoint_chain; \
|
B ? (TMP=B->next, 1): 0; \
|
B ? (TMP=B->next, 1): 0; \
|
B = TMP)
|
B = TMP)
|
|
|
/* Similar iterator for the low-level breakpoints. SAFE variant is not
|
/* Similar iterator for the low-level breakpoints. SAFE variant is not
|
provided so update_global_location_list must not be called while executing
|
provided so update_global_location_list must not be called while executing
|
the block of ALL_BP_LOCATIONS. */
|
the block of ALL_BP_LOCATIONS. */
|
|
|
#define ALL_BP_LOCATIONS(B,BP_TMP) \
|
#define ALL_BP_LOCATIONS(B,BP_TMP) \
|
for (BP_TMP = bp_location; \
|
for (BP_TMP = bp_location; \
|
BP_TMP < bp_location + bp_location_count && (B = *BP_TMP); \
|
BP_TMP < bp_location + bp_location_count && (B = *BP_TMP); \
|
BP_TMP++)
|
BP_TMP++)
|
|
|
/* Iterator for tracepoints only. */
|
/* Iterator for tracepoints only. */
|
|
|
#define ALL_TRACEPOINTS(B) \
|
#define ALL_TRACEPOINTS(B) \
|
for (B = breakpoint_chain; B; B = B->next) \
|
for (B = breakpoint_chain; B; B = B->next) \
|
if (tracepoint_type (B))
|
if (tracepoint_type (B))
|
|
|
/* Chains of all breakpoints defined. */
|
/* Chains of all breakpoints defined. */
|
|
|
struct breakpoint *breakpoint_chain;
|
struct breakpoint *breakpoint_chain;
|
|
|
/* Array is sorted by bp_location_compare - primarily by the ADDRESS. */
|
/* Array is sorted by bp_location_compare - primarily by the ADDRESS. */
|
|
|
static struct bp_location **bp_location;
|
static struct bp_location **bp_location;
|
|
|
/* Number of elements of BP_LOCATION. */
|
/* Number of elements of BP_LOCATION. */
|
|
|
static unsigned bp_location_count;
|
static unsigned bp_location_count;
|
|
|
/* Maximum alignment offset between bp_target_info.PLACED_ADDRESS and ADDRESS
|
/* Maximum alignment offset between bp_target_info.PLACED_ADDRESS and ADDRESS
|
for the current elements of BP_LOCATION which get a valid result from
|
for the current elements of BP_LOCATION which get a valid result from
|
bp_location_has_shadow. You can use it for roughly limiting the subrange of
|
bp_location_has_shadow. You can use it for roughly limiting the subrange of
|
BP_LOCATION to scan for shadow bytes for an address you need to read. */
|
BP_LOCATION to scan for shadow bytes for an address you need to read. */
|
|
|
static CORE_ADDR bp_location_placed_address_before_address_max;
|
static CORE_ADDR bp_location_placed_address_before_address_max;
|
|
|
/* Maximum offset plus alignment between
|
/* Maximum offset plus alignment between
|
bp_target_info.PLACED_ADDRESS + bp_target_info.SHADOW_LEN and ADDRESS for
|
bp_target_info.PLACED_ADDRESS + bp_target_info.SHADOW_LEN and ADDRESS for
|
the current elements of BP_LOCATION which get a valid result from
|
the current elements of BP_LOCATION which get a valid result from
|
bp_location_has_shadow. You can use it for roughly limiting the subrange of
|
bp_location_has_shadow. You can use it for roughly limiting the subrange of
|
BP_LOCATION to scan for shadow bytes for an address you need to read. */
|
BP_LOCATION to scan for shadow bytes for an address you need to read. */
|
|
|
static CORE_ADDR bp_location_shadow_len_after_address_max;
|
static CORE_ADDR bp_location_shadow_len_after_address_max;
|
|
|
/* The locations that no longer correspond to any breakpoint,
|
/* The locations that no longer correspond to any breakpoint,
|
unlinked from bp_location array, but for which a hit
|
unlinked from bp_location array, but for which a hit
|
may still be reported by a target. */
|
may still be reported by a target. */
|
VEC(bp_location_p) *moribund_locations = NULL;
|
VEC(bp_location_p) *moribund_locations = NULL;
|
|
|
/* Number of last breakpoint made. */
|
/* Number of last breakpoint made. */
|
|
|
int breakpoint_count;
|
int breakpoint_count;
|
|
|
/* Number of last tracepoint made. */
|
/* Number of last tracepoint made. */
|
|
|
int tracepoint_count;
|
int tracepoint_count;
|
|
|
/* Return whether a breakpoint is an active enabled breakpoint. */
|
/* Return whether a breakpoint is an active enabled breakpoint. */
|
static int
|
static int
|
breakpoint_enabled (struct breakpoint *b)
|
breakpoint_enabled (struct breakpoint *b)
|
{
|
{
|
return (b->enable_state == bp_enabled);
|
return (b->enable_state == bp_enabled);
|
}
|
}
|
|
|
/* Set breakpoint count to NUM. */
|
/* Set breakpoint count to NUM. */
|
|
|
void
|
void
|
set_breakpoint_count (int num)
|
set_breakpoint_count (int num)
|
{
|
{
|
breakpoint_count = num;
|
breakpoint_count = num;
|
set_internalvar_integer (lookup_internalvar ("bpnum"), num);
|
set_internalvar_integer (lookup_internalvar ("bpnum"), num);
|
}
|
}
|
|
|
/* Used in run_command to zero the hit count when a new run starts. */
|
/* Used in run_command to zero the hit count when a new run starts. */
|
|
|
void
|
void
|
clear_breakpoint_hit_counts (void)
|
clear_breakpoint_hit_counts (void)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
b->hit_count = 0;
|
b->hit_count = 0;
|
}
|
}
|
|
|
/* Encapsulate tests for different types of tracepoints. */
|
/* Encapsulate tests for different types of tracepoints. */
|
|
|
static int
|
static int
|
tracepoint_type (const struct breakpoint *b)
|
tracepoint_type (const struct breakpoint *b)
|
{
|
{
|
return (b->type == bp_tracepoint || b->type == bp_fast_tracepoint);
|
return (b->type == bp_tracepoint || b->type == bp_fast_tracepoint);
|
}
|
}
|
|
|
/* Default address, symtab and line to put a breakpoint at
|
/* Default address, symtab and line to put a breakpoint at
|
for "break" command with no arg.
|
for "break" command with no arg.
|
if default_breakpoint_valid is zero, the other three are
|
if default_breakpoint_valid is zero, the other three are
|
not valid, and "break" with no arg is an error.
|
not valid, and "break" with no arg is an error.
|
|
|
This set by print_stack_frame, which calls set_default_breakpoint. */
|
This set by print_stack_frame, which calls set_default_breakpoint. */
|
|
|
int default_breakpoint_valid;
|
int default_breakpoint_valid;
|
CORE_ADDR default_breakpoint_address;
|
CORE_ADDR default_breakpoint_address;
|
struct symtab *default_breakpoint_symtab;
|
struct symtab *default_breakpoint_symtab;
|
int default_breakpoint_line;
|
int default_breakpoint_line;
|
struct program_space *default_breakpoint_pspace;
|
struct program_space *default_breakpoint_pspace;
|
|
|
|
|
/* *PP is a string denoting a breakpoint. Get the number of the breakpoint.
|
/* *PP is a string denoting a breakpoint. Get the number of the breakpoint.
|
Advance *PP after the string and any trailing whitespace.
|
Advance *PP after the string and any trailing whitespace.
|
|
|
Currently the string can either be a number or "$" followed by the name
|
Currently the string can either be a number or "$" followed by the name
|
of a convenience variable. Making it an expression wouldn't work well
|
of a convenience variable. Making it an expression wouldn't work well
|
for map_breakpoint_numbers (e.g. "4 + 5 + 6").
|
for map_breakpoint_numbers (e.g. "4 + 5 + 6").
|
|
|
If the string is a NULL pointer, that denotes the last breakpoint.
|
If the string is a NULL pointer, that denotes the last breakpoint.
|
|
|
TRAILER is a character which can be found after the number; most
|
TRAILER is a character which can be found after the number; most
|
commonly this is `-'. If you don't want a trailer, use \0. */
|
commonly this is `-'. If you don't want a trailer, use \0. */
|
static int
|
static int
|
get_number_trailer (char **pp, int trailer)
|
get_number_trailer (char **pp, int trailer)
|
{
|
{
|
int retval = 0; /* default */
|
int retval = 0; /* default */
|
char *p = *pp;
|
char *p = *pp;
|
|
|
if (p == NULL)
|
if (p == NULL)
|
/* Empty line means refer to the last breakpoint. */
|
/* Empty line means refer to the last breakpoint. */
|
return breakpoint_count;
|
return breakpoint_count;
|
else if (*p == '$')
|
else if (*p == '$')
|
{
|
{
|
/* Make a copy of the name, so we can null-terminate it
|
/* Make a copy of the name, so we can null-terminate it
|
to pass to lookup_internalvar(). */
|
to pass to lookup_internalvar(). */
|
char *varname;
|
char *varname;
|
char *start = ++p;
|
char *start = ++p;
|
LONGEST val;
|
LONGEST val;
|
|
|
while (isalnum (*p) || *p == '_')
|
while (isalnum (*p) || *p == '_')
|
p++;
|
p++;
|
varname = (char *) alloca (p - start + 1);
|
varname = (char *) alloca (p - start + 1);
|
strncpy (varname, start, p - start);
|
strncpy (varname, start, p - start);
|
varname[p - start] = '\0';
|
varname[p - start] = '\0';
|
if (get_internalvar_integer (lookup_internalvar (varname), &val))
|
if (get_internalvar_integer (lookup_internalvar (varname), &val))
|
retval = (int) val;
|
retval = (int) val;
|
else
|
else
|
{
|
{
|
printf_filtered (_("Convenience variable must have integer value.\n"));
|
printf_filtered (_("Convenience variable must have integer value.\n"));
|
retval = 0;
|
retval = 0;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
if (*p == '-')
|
if (*p == '-')
|
++p;
|
++p;
|
while (*p >= '0' && *p <= '9')
|
while (*p >= '0' && *p <= '9')
|
++p;
|
++p;
|
if (p == *pp)
|
if (p == *pp)
|
/* There is no number here. (e.g. "cond a == b"). */
|
/* There is no number here. (e.g. "cond a == b"). */
|
{
|
{
|
/* Skip non-numeric token */
|
/* Skip non-numeric token */
|
while (*p && !isspace((int) *p))
|
while (*p && !isspace((int) *p))
|
++p;
|
++p;
|
/* Return zero, which caller must interpret as error. */
|
/* Return zero, which caller must interpret as error. */
|
retval = 0;
|
retval = 0;
|
}
|
}
|
else
|
else
|
retval = atoi (*pp);
|
retval = atoi (*pp);
|
}
|
}
|
if (!(isspace (*p) || *p == '\0' || *p == trailer))
|
if (!(isspace (*p) || *p == '\0' || *p == trailer))
|
{
|
{
|
/* Trailing junk: return 0 and let caller print error msg. */
|
/* Trailing junk: return 0 and let caller print error msg. */
|
while (!(isspace (*p) || *p == '\0' || *p == trailer))
|
while (!(isspace (*p) || *p == '\0' || *p == trailer))
|
++p;
|
++p;
|
retval = 0;
|
retval = 0;
|
}
|
}
|
while (isspace (*p))
|
while (isspace (*p))
|
p++;
|
p++;
|
*pp = p;
|
*pp = p;
|
return retval;
|
return retval;
|
}
|
}
|
|
|
|
|
/* Like get_number_trailer, but don't allow a trailer. */
|
/* Like get_number_trailer, but don't allow a trailer. */
|
int
|
int
|
get_number (char **pp)
|
get_number (char **pp)
|
{
|
{
|
return get_number_trailer (pp, '\0');
|
return get_number_trailer (pp, '\0');
|
}
|
}
|
|
|
/* Parse a number or a range.
|
/* Parse a number or a range.
|
* A number will be of the form handled by get_number.
|
* A number will be of the form handled by get_number.
|
* A range will be of the form <number1> - <number2>, and
|
* A range will be of the form <number1> - <number2>, and
|
* will represent all the integers between number1 and number2,
|
* will represent all the integers between number1 and number2,
|
* inclusive.
|
* inclusive.
|
*
|
*
|
* While processing a range, this fuction is called iteratively;
|
* While processing a range, this fuction is called iteratively;
|
* At each call it will return the next value in the range.
|
* At each call it will return the next value in the range.
|
*
|
*
|
* At the beginning of parsing a range, the char pointer PP will
|
* At the beginning of parsing a range, the char pointer PP will
|
* be advanced past <number1> and left pointing at the '-' token.
|
* be advanced past <number1> and left pointing at the '-' token.
|
* Subsequent calls will not advance the pointer until the range
|
* Subsequent calls will not advance the pointer until the range
|
* is completed. The call that completes the range will advance
|
* is completed. The call that completes the range will advance
|
* pointer PP past <number2>.
|
* pointer PP past <number2>.
|
*/
|
*/
|
|
|
int
|
int
|
get_number_or_range (char **pp)
|
get_number_or_range (char **pp)
|
{
|
{
|
static int last_retval, end_value;
|
static int last_retval, end_value;
|
static char *end_ptr;
|
static char *end_ptr;
|
static int in_range = 0;
|
static int in_range = 0;
|
|
|
if (**pp != '-')
|
if (**pp != '-')
|
{
|
{
|
/* Default case: pp is pointing either to a solo number,
|
/* Default case: pp is pointing either to a solo number,
|
or to the first number of a range. */
|
or to the first number of a range. */
|
last_retval = get_number_trailer (pp, '-');
|
last_retval = get_number_trailer (pp, '-');
|
if (**pp == '-')
|
if (**pp == '-')
|
{
|
{
|
char **temp;
|
char **temp;
|
|
|
/* This is the start of a range (<number1> - <number2>).
|
/* This is the start of a range (<number1> - <number2>).
|
Skip the '-', parse and remember the second number,
|
Skip the '-', parse and remember the second number,
|
and also remember the end of the final token. */
|
and also remember the end of the final token. */
|
|
|
temp = &end_ptr;
|
temp = &end_ptr;
|
end_ptr = *pp + 1;
|
end_ptr = *pp + 1;
|
while (isspace ((int) *end_ptr))
|
while (isspace ((int) *end_ptr))
|
end_ptr++; /* skip white space */
|
end_ptr++; /* skip white space */
|
end_value = get_number (temp);
|
end_value = get_number (temp);
|
if (end_value < last_retval)
|
if (end_value < last_retval)
|
{
|
{
|
error (_("inverted range"));
|
error (_("inverted range"));
|
}
|
}
|
else if (end_value == last_retval)
|
else if (end_value == last_retval)
|
{
|
{
|
/* degenerate range (number1 == number2). Advance the
|
/* degenerate range (number1 == number2). Advance the
|
token pointer so that the range will be treated as a
|
token pointer so that the range will be treated as a
|
single number. */
|
single number. */
|
*pp = end_ptr;
|
*pp = end_ptr;
|
}
|
}
|
else
|
else
|
in_range = 1;
|
in_range = 1;
|
}
|
}
|
}
|
}
|
else if (! in_range)
|
else if (! in_range)
|
error (_("negative value"));
|
error (_("negative value"));
|
else
|
else
|
{
|
{
|
/* pp points to the '-' that betokens a range. All
|
/* pp points to the '-' that betokens a range. All
|
number-parsing has already been done. Return the next
|
number-parsing has already been done. Return the next
|
integer value (one greater than the saved previous value).
|
integer value (one greater than the saved previous value).
|
Do not advance the token pointer 'pp' until the end of range
|
Do not advance the token pointer 'pp' until the end of range
|
is reached. */
|
is reached. */
|
|
|
if (++last_retval == end_value)
|
if (++last_retval == end_value)
|
{
|
{
|
/* End of range reached; advance token pointer. */
|
/* End of range reached; advance token pointer. */
|
*pp = end_ptr;
|
*pp = end_ptr;
|
in_range = 0;
|
in_range = 0;
|
}
|
}
|
}
|
}
|
return last_retval;
|
return last_retval;
|
}
|
}
|
|
|
/* Return the breakpoint with the specified number, or NULL
|
/* Return the breakpoint with the specified number, or NULL
|
if the number does not refer to an existing breakpoint. */
|
if the number does not refer to an existing breakpoint. */
|
|
|
struct breakpoint *
|
struct breakpoint *
|
get_breakpoint (int num)
|
get_breakpoint (int num)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->number == num)
|
if (b->number == num)
|
return b;
|
return b;
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
|
|
/* condition N EXP -- set break condition of breakpoint N to EXP. */
|
/* condition N EXP -- set break condition of breakpoint N to EXP. */
|
|
|
static void
|
static void
|
condition_command (char *arg, int from_tty)
|
condition_command (char *arg, int from_tty)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
char *p;
|
char *p;
|
int bnum;
|
int bnum;
|
|
|
if (arg == 0)
|
if (arg == 0)
|
error_no_arg (_("breakpoint number"));
|
error_no_arg (_("breakpoint number"));
|
|
|
p = arg;
|
p = arg;
|
bnum = get_number (&p);
|
bnum = get_number (&p);
|
if (bnum == 0)
|
if (bnum == 0)
|
error (_("Bad breakpoint argument: '%s'"), arg);
|
error (_("Bad breakpoint argument: '%s'"), arg);
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->number == bnum)
|
if (b->number == bnum)
|
{
|
{
|
struct bp_location *loc = b->loc;
|
struct bp_location *loc = b->loc;
|
for (; loc; loc = loc->next)
|
for (; loc; loc = loc->next)
|
{
|
{
|
if (loc->cond)
|
if (loc->cond)
|
{
|
{
|
xfree (loc->cond);
|
xfree (loc->cond);
|
loc->cond = 0;
|
loc->cond = 0;
|
}
|
}
|
}
|
}
|
if (b->cond_string != NULL)
|
if (b->cond_string != NULL)
|
xfree (b->cond_string);
|
xfree (b->cond_string);
|
|
|
if (*p == 0)
|
if (*p == 0)
|
{
|
{
|
b->cond_string = NULL;
|
b->cond_string = NULL;
|
if (from_tty)
|
if (from_tty)
|
printf_filtered (_("Breakpoint %d now unconditional.\n"), bnum);
|
printf_filtered (_("Breakpoint %d now unconditional.\n"), bnum);
|
}
|
}
|
else
|
else
|
{
|
{
|
arg = p;
|
arg = p;
|
/* I don't know if it matters whether this is the string the user
|
/* I don't know if it matters whether this is the string the user
|
typed in or the decompiled expression. */
|
typed in or the decompiled expression. */
|
b->cond_string = xstrdup (arg);
|
b->cond_string = xstrdup (arg);
|
b->condition_not_parsed = 0;
|
b->condition_not_parsed = 0;
|
for (loc = b->loc; loc; loc = loc->next)
|
for (loc = b->loc; loc; loc = loc->next)
|
{
|
{
|
arg = p;
|
arg = p;
|
loc->cond =
|
loc->cond =
|
parse_exp_1 (&arg, block_for_pc (loc->address), 0);
|
parse_exp_1 (&arg, block_for_pc (loc->address), 0);
|
if (*arg)
|
if (*arg)
|
error (_("Junk at end of expression"));
|
error (_("Junk at end of expression"));
|
}
|
}
|
}
|
}
|
breakpoints_changed ();
|
breakpoints_changed ();
|
observer_notify_breakpoint_modified (b->number);
|
observer_notify_breakpoint_modified (b->number);
|
return;
|
return;
|
}
|
}
|
|
|
error (_("No breakpoint number %d."), bnum);
|
error (_("No breakpoint number %d."), bnum);
|
}
|
}
|
|
|
/* Set the command list of B to COMMANDS. */
|
/* Set the command list of B to COMMANDS. */
|
|
|
void
|
void
|
breakpoint_set_commands (struct breakpoint *b, struct command_line *commands)
|
breakpoint_set_commands (struct breakpoint *b, struct command_line *commands)
|
{
|
{
|
free_command_lines (&b->commands);
|
free_command_lines (&b->commands);
|
b->commands = commands;
|
b->commands = commands;
|
breakpoints_changed ();
|
breakpoints_changed ();
|
observer_notify_breakpoint_modified (b->number);
|
observer_notify_breakpoint_modified (b->number);
|
}
|
}
|
|
|
static void
|
static void
|
commands_command (char *arg, int from_tty)
|
commands_command (char *arg, int from_tty)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
char *p;
|
char *p;
|
int bnum;
|
int bnum;
|
struct command_line *l;
|
struct command_line *l;
|
|
|
/* If we allowed this, we would have problems with when to
|
/* If we allowed this, we would have problems with when to
|
free the storage, if we change the commands currently
|
free the storage, if we change the commands currently
|
being read from. */
|
being read from. */
|
|
|
if (executing_breakpoint_commands)
|
if (executing_breakpoint_commands)
|
error (_("Can't use the \"commands\" command among a breakpoint's commands."));
|
error (_("Can't use the \"commands\" command among a breakpoint's commands."));
|
|
|
p = arg;
|
p = arg;
|
bnum = get_number (&p);
|
bnum = get_number (&p);
|
|
|
if (p && *p)
|
if (p && *p)
|
error (_("Unexpected extra arguments following breakpoint number."));
|
error (_("Unexpected extra arguments following breakpoint number."));
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->number == bnum)
|
if (b->number == bnum)
|
{
|
{
|
char *tmpbuf = xstrprintf ("Type commands for when breakpoint %d is hit, one per line.",
|
char *tmpbuf = xstrprintf ("Type commands for when breakpoint %d is hit, one per line.",
|
bnum);
|
bnum);
|
struct cleanup *cleanups = make_cleanup (xfree, tmpbuf);
|
struct cleanup *cleanups = make_cleanup (xfree, tmpbuf);
|
l = read_command_lines (tmpbuf, from_tty, 1);
|
l = read_command_lines (tmpbuf, from_tty, 1);
|
do_cleanups (cleanups);
|
do_cleanups (cleanups);
|
breakpoint_set_commands (b, l);
|
breakpoint_set_commands (b, l);
|
return;
|
return;
|
}
|
}
|
error (_("No breakpoint number %d."), bnum);
|
error (_("No breakpoint number %d."), bnum);
|
}
|
}
|
|
|
/* Like commands_command, but instead of reading the commands from
|
/* Like commands_command, but instead of reading the commands from
|
input stream, takes them from an already parsed command structure.
|
input stream, takes them from an already parsed command structure.
|
|
|
This is used by cli-script.c to DTRT with breakpoint commands
|
This is used by cli-script.c to DTRT with breakpoint commands
|
that are part of if and while bodies. */
|
that are part of if and while bodies. */
|
enum command_control_type
|
enum command_control_type
|
commands_from_control_command (char *arg, struct command_line *cmd)
|
commands_from_control_command (char *arg, struct command_line *cmd)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
char *p;
|
char *p;
|
int bnum;
|
int bnum;
|
|
|
/* If we allowed this, we would have problems with when to
|
/* If we allowed this, we would have problems with when to
|
free the storage, if we change the commands currently
|
free the storage, if we change the commands currently
|
being read from. */
|
being read from. */
|
|
|
if (executing_breakpoint_commands)
|
if (executing_breakpoint_commands)
|
error (_("Can't use the \"commands\" command among a breakpoint's commands."));
|
error (_("Can't use the \"commands\" command among a breakpoint's commands."));
|
|
|
/* An empty string for the breakpoint number means the last
|
/* An empty string for the breakpoint number means the last
|
breakpoint, but get_number expects a NULL pointer. */
|
breakpoint, but get_number expects a NULL pointer. */
|
if (arg && !*arg)
|
if (arg && !*arg)
|
p = NULL;
|
p = NULL;
|
else
|
else
|
p = arg;
|
p = arg;
|
bnum = get_number (&p);
|
bnum = get_number (&p);
|
|
|
if (p && *p)
|
if (p && *p)
|
error (_("Unexpected extra arguments following breakpoint number."));
|
error (_("Unexpected extra arguments following breakpoint number."));
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->number == bnum)
|
if (b->number == bnum)
|
{
|
{
|
free_command_lines (&b->commands);
|
free_command_lines (&b->commands);
|
if (cmd->body_count != 1)
|
if (cmd->body_count != 1)
|
error (_("Invalid \"commands\" block structure."));
|
error (_("Invalid \"commands\" block structure."));
|
/* We need to copy the commands because if/while will free the
|
/* We need to copy the commands because if/while will free the
|
list after it finishes execution. */
|
list after it finishes execution. */
|
b->commands = copy_command_lines (cmd->body_list[0]);
|
b->commands = copy_command_lines (cmd->body_list[0]);
|
breakpoints_changed ();
|
breakpoints_changed ();
|
observer_notify_breakpoint_modified (b->number);
|
observer_notify_breakpoint_modified (b->number);
|
return simple_control;
|
return simple_control;
|
}
|
}
|
error (_("No breakpoint number %d."), bnum);
|
error (_("No breakpoint number %d."), bnum);
|
}
|
}
|
|
|
/* Return non-zero if BL->TARGET_INFO contains valid information. */
|
/* Return non-zero if BL->TARGET_INFO contains valid information. */
|
|
|
static int
|
static int
|
bp_location_has_shadow (struct bp_location *bl)
|
bp_location_has_shadow (struct bp_location *bl)
|
{
|
{
|
if (bl->loc_type != bp_loc_software_breakpoint)
|
if (bl->loc_type != bp_loc_software_breakpoint)
|
return 0;
|
return 0;
|
if (!bl->inserted)
|
if (!bl->inserted)
|
return 0;
|
return 0;
|
if (bl->target_info.shadow_len == 0)
|
if (bl->target_info.shadow_len == 0)
|
/* bp isn't valid, or doesn't shadow memory. */
|
/* bp isn't valid, or doesn't shadow memory. */
|
return 0;
|
return 0;
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Update BUF, which is LEN bytes read from the target address MEMADDR,
|
/* Update BUF, which is LEN bytes read from the target address MEMADDR,
|
by replacing any memory breakpoints with their shadowed contents.
|
by replacing any memory breakpoints with their shadowed contents.
|
|
|
The range of shadowed area by each bp_location is:
|
The range of shadowed area by each bp_location is:
|
b->address - bp_location_placed_address_before_address_max
|
b->address - bp_location_placed_address_before_address_max
|
up to b->address + bp_location_shadow_len_after_address_max
|
up to b->address + bp_location_shadow_len_after_address_max
|
The range we were requested to resolve shadows for is:
|
The range we were requested to resolve shadows for is:
|
memaddr ... memaddr + len
|
memaddr ... memaddr + len
|
Thus the safe cutoff boundaries for performance optimization are
|
Thus the safe cutoff boundaries for performance optimization are
|
memaddr + len <= b->address - bp_location_placed_address_before_address_max
|
memaddr + len <= b->address - bp_location_placed_address_before_address_max
|
and:
|
and:
|
b->address + bp_location_shadow_len_after_address_max <= memaddr */
|
b->address + bp_location_shadow_len_after_address_max <= memaddr */
|
|
|
void
|
void
|
breakpoint_restore_shadows (gdb_byte *buf, ULONGEST memaddr, LONGEST len)
|
breakpoint_restore_shadows (gdb_byte *buf, ULONGEST memaddr, LONGEST len)
|
{
|
{
|
/* Left boundary, right boundary and median element of our binary search. */
|
/* Left boundary, right boundary and median element of our binary search. */
|
unsigned bc_l, bc_r, bc;
|
unsigned bc_l, bc_r, bc;
|
|
|
/* Find BC_L which is a leftmost element which may affect BUF content. It is
|
/* Find BC_L which is a leftmost element which may affect BUF content. It is
|
safe to report lower value but a failure to report higher one. */
|
safe to report lower value but a failure to report higher one. */
|
|
|
bc_l = 0;
|
bc_l = 0;
|
bc_r = bp_location_count;
|
bc_r = bp_location_count;
|
while (bc_l + 1 < bc_r)
|
while (bc_l + 1 < bc_r)
|
{
|
{
|
struct bp_location *b;
|
struct bp_location *b;
|
|
|
bc = (bc_l + bc_r) / 2;
|
bc = (bc_l + bc_r) / 2;
|
b = bp_location[bc];
|
b = bp_location[bc];
|
|
|
/* Check first B->ADDRESS will not overflow due to the added constant.
|
/* Check first B->ADDRESS will not overflow due to the added constant.
|
Then advance the left boundary only if we are sure the BC element can
|
Then advance the left boundary only if we are sure the BC element can
|
in no way affect the BUF content (MEMADDR to MEMADDR + LEN range).
|
in no way affect the BUF content (MEMADDR to MEMADDR + LEN range).
|
|
|
Use the BP_LOCATION_SHADOW_LEN_AFTER_ADDRESS_MAX safety offset so that
|
Use the BP_LOCATION_SHADOW_LEN_AFTER_ADDRESS_MAX safety offset so that
|
we cannot miss a breakpoint with its shadow range tail still reaching
|
we cannot miss a breakpoint with its shadow range tail still reaching
|
MEMADDR. */
|
MEMADDR. */
|
|
|
if (b->address + bp_location_shadow_len_after_address_max >= b->address
|
if (b->address + bp_location_shadow_len_after_address_max >= b->address
|
&& b->address + bp_location_shadow_len_after_address_max <= memaddr)
|
&& b->address + bp_location_shadow_len_after_address_max <= memaddr)
|
bc_l = bc;
|
bc_l = bc;
|
else
|
else
|
bc_r = bc;
|
bc_r = bc;
|
}
|
}
|
|
|
/* Now do full processing of the found relevant range of elements. */
|
/* Now do full processing of the found relevant range of elements. */
|
|
|
for (bc = bc_l; bc < bp_location_count; bc++)
|
for (bc = bc_l; bc < bp_location_count; bc++)
|
{
|
{
|
struct bp_location *b = bp_location[bc];
|
struct bp_location *b = bp_location[bc];
|
CORE_ADDR bp_addr = 0;
|
CORE_ADDR bp_addr = 0;
|
int bp_size = 0;
|
int bp_size = 0;
|
int bptoffset = 0;
|
int bptoffset = 0;
|
|
|
if (b->owner->type == bp_none)
|
if (b->owner->type == bp_none)
|
warning (_("reading through apparently deleted breakpoint #%d?"),
|
warning (_("reading through apparently deleted breakpoint #%d?"),
|
b->owner->number);
|
b->owner->number);
|
|
|
/* Performance optimization: any futher element can no longer affect BUF
|
/* Performance optimization: any futher element can no longer affect BUF
|
content. */
|
content. */
|
|
|
if (b->address >= bp_location_placed_address_before_address_max
|
if (b->address >= bp_location_placed_address_before_address_max
|
&& memaddr + len <= b->address
|
&& memaddr + len <= b->address
|
- bp_location_placed_address_before_address_max)
|
- bp_location_placed_address_before_address_max)
|
break;
|
break;
|
|
|
if (!bp_location_has_shadow (b))
|
if (!bp_location_has_shadow (b))
|
continue;
|
continue;
|
if (!breakpoint_address_match (b->target_info.placed_address_space, 0,
|
if (!breakpoint_address_match (b->target_info.placed_address_space, 0,
|
current_program_space->aspace, 0))
|
current_program_space->aspace, 0))
|
continue;
|
continue;
|
|
|
/* Addresses and length of the part of the breakpoint that
|
/* Addresses and length of the part of the breakpoint that
|
we need to copy. */
|
we need to copy. */
|
bp_addr = b->target_info.placed_address;
|
bp_addr = b->target_info.placed_address;
|
bp_size = b->target_info.shadow_len;
|
bp_size = b->target_info.shadow_len;
|
|
|
if (bp_addr + bp_size <= memaddr)
|
if (bp_addr + bp_size <= memaddr)
|
/* The breakpoint is entirely before the chunk of memory we
|
/* The breakpoint is entirely before the chunk of memory we
|
are reading. */
|
are reading. */
|
continue;
|
continue;
|
|
|
if (bp_addr >= memaddr + len)
|
if (bp_addr >= memaddr + len)
|
/* The breakpoint is entirely after the chunk of memory we are
|
/* The breakpoint is entirely after the chunk of memory we are
|
reading. */
|
reading. */
|
continue;
|
continue;
|
|
|
/* Offset within shadow_contents. */
|
/* Offset within shadow_contents. */
|
if (bp_addr < memaddr)
|
if (bp_addr < memaddr)
|
{
|
{
|
/* Only copy the second part of the breakpoint. */
|
/* Only copy the second part of the breakpoint. */
|
bp_size -= memaddr - bp_addr;
|
bp_size -= memaddr - bp_addr;
|
bptoffset = memaddr - bp_addr;
|
bptoffset = memaddr - bp_addr;
|
bp_addr = memaddr;
|
bp_addr = memaddr;
|
}
|
}
|
|
|
if (bp_addr + bp_size > memaddr + len)
|
if (bp_addr + bp_size > memaddr + len)
|
{
|
{
|
/* Only copy the first part of the breakpoint. */
|
/* Only copy the first part of the breakpoint. */
|
bp_size -= (bp_addr + bp_size) - (memaddr + len);
|
bp_size -= (bp_addr + bp_size) - (memaddr + len);
|
}
|
}
|
|
|
memcpy (buf + bp_addr - memaddr,
|
memcpy (buf + bp_addr - memaddr,
|
b->target_info.shadow_contents + bptoffset, bp_size);
|
b->target_info.shadow_contents + bptoffset, bp_size);
|
}
|
}
|
}
|
}
|
|
|
|
|
/* A wrapper function for inserting catchpoints. */
|
/* A wrapper function for inserting catchpoints. */
|
static void
|
static void
|
insert_catchpoint (struct ui_out *uo, void *args)
|
insert_catchpoint (struct ui_out *uo, void *args)
|
{
|
{
|
struct breakpoint *b = (struct breakpoint *) args;
|
struct breakpoint *b = (struct breakpoint *) args;
|
int val = -1;
|
int val = -1;
|
|
|
gdb_assert (b->type == bp_catchpoint);
|
gdb_assert (b->type == bp_catchpoint);
|
gdb_assert (b->ops != NULL && b->ops->insert != NULL);
|
gdb_assert (b->ops != NULL && b->ops->insert != NULL);
|
|
|
b->ops->insert (b);
|
b->ops->insert (b);
|
}
|
}
|
|
|
static int
|
static int
|
is_hardware_watchpoint (struct breakpoint *bpt)
|
is_hardware_watchpoint (struct breakpoint *bpt)
|
{
|
{
|
return (bpt->type == bp_hardware_watchpoint
|
return (bpt->type == bp_hardware_watchpoint
|
|| bpt->type == bp_read_watchpoint
|
|| bpt->type == bp_read_watchpoint
|
|| bpt->type == bp_access_watchpoint);
|
|| bpt->type == bp_access_watchpoint);
|
}
|
}
|
|
|
/* Find the current value of a watchpoint on EXP. Return the value in
|
/* Find the current value of a watchpoint on EXP. Return the value in
|
*VALP and *RESULTP and the chain of intermediate and final values
|
*VALP and *RESULTP and the chain of intermediate and final values
|
in *VAL_CHAIN. RESULTP and VAL_CHAIN may be NULL if the caller does
|
in *VAL_CHAIN. RESULTP and VAL_CHAIN may be NULL if the caller does
|
not need them.
|
not need them.
|
|
|
If a memory error occurs while evaluating the expression, *RESULTP will
|
If a memory error occurs while evaluating the expression, *RESULTP will
|
be set to NULL. *RESULTP may be a lazy value, if the result could
|
be set to NULL. *RESULTP may be a lazy value, if the result could
|
not be read from memory. It is used to determine whether a value
|
not be read from memory. It is used to determine whether a value
|
is user-specified (we should watch the whole value) or intermediate
|
is user-specified (we should watch the whole value) or intermediate
|
(we should watch only the bit used to locate the final value).
|
(we should watch only the bit used to locate the final value).
|
|
|
If the final value, or any intermediate value, could not be read
|
If the final value, or any intermediate value, could not be read
|
from memory, *VALP will be set to NULL. *VAL_CHAIN will still be
|
from memory, *VALP will be set to NULL. *VAL_CHAIN will still be
|
set to any referenced values. *VALP will never be a lazy value.
|
set to any referenced values. *VALP will never be a lazy value.
|
This is the value which we store in struct breakpoint.
|
This is the value which we store in struct breakpoint.
|
|
|
If VAL_CHAIN is non-NULL, *VAL_CHAIN will be released from the
|
If VAL_CHAIN is non-NULL, *VAL_CHAIN will be released from the
|
value chain. The caller must free the values individually. If
|
value chain. The caller must free the values individually. If
|
VAL_CHAIN is NULL, all generated values will be left on the value
|
VAL_CHAIN is NULL, all generated values will be left on the value
|
chain. */
|
chain. */
|
|
|
static void
|
static void
|
fetch_watchpoint_value (struct expression *exp, struct value **valp,
|
fetch_watchpoint_value (struct expression *exp, struct value **valp,
|
struct value **resultp, struct value **val_chain)
|
struct value **resultp, struct value **val_chain)
|
{
|
{
|
struct value *mark, *new_mark, *result;
|
struct value *mark, *new_mark, *result;
|
volatile struct gdb_exception ex;
|
volatile struct gdb_exception ex;
|
|
|
*valp = NULL;
|
*valp = NULL;
|
if (resultp)
|
if (resultp)
|
*resultp = NULL;
|
*resultp = NULL;
|
if (val_chain)
|
if (val_chain)
|
*val_chain = NULL;
|
*val_chain = NULL;
|
|
|
/* Evaluate the expression. */
|
/* Evaluate the expression. */
|
mark = value_mark ();
|
mark = value_mark ();
|
result = NULL;
|
result = NULL;
|
|
|
TRY_CATCH (ex, RETURN_MASK_ALL)
|
TRY_CATCH (ex, RETURN_MASK_ALL)
|
{
|
{
|
result = evaluate_expression (exp);
|
result = evaluate_expression (exp);
|
}
|
}
|
if (ex.reason < 0)
|
if (ex.reason < 0)
|
{
|
{
|
/* Ignore memory errors, we want watchpoints pointing at
|
/* Ignore memory errors, we want watchpoints pointing at
|
inaccessible memory to still be created; otherwise, throw the
|
inaccessible memory to still be created; otherwise, throw the
|
error to some higher catcher. */
|
error to some higher catcher. */
|
switch (ex.error)
|
switch (ex.error)
|
{
|
{
|
case MEMORY_ERROR:
|
case MEMORY_ERROR:
|
break;
|
break;
|
default:
|
default:
|
throw_exception (ex);
|
throw_exception (ex);
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
new_mark = value_mark ();
|
new_mark = value_mark ();
|
if (mark == new_mark)
|
if (mark == new_mark)
|
return;
|
return;
|
if (resultp)
|
if (resultp)
|
*resultp = result;
|
*resultp = result;
|
|
|
/* Make sure it's not lazy, so that after the target stops again we
|
/* Make sure it's not lazy, so that after the target stops again we
|
have a non-lazy previous value to compare with. */
|
have a non-lazy previous value to compare with. */
|
if (result != NULL
|
if (result != NULL
|
&& (!value_lazy (result) || gdb_value_fetch_lazy (result)))
|
&& (!value_lazy (result) || gdb_value_fetch_lazy (result)))
|
*valp = result;
|
*valp = result;
|
|
|
if (val_chain)
|
if (val_chain)
|
{
|
{
|
/* Return the chain of intermediate values. We use this to
|
/* Return the chain of intermediate values. We use this to
|
decide which addresses to watch. */
|
decide which addresses to watch. */
|
*val_chain = new_mark;
|
*val_chain = new_mark;
|
value_release_to_mark (mark);
|
value_release_to_mark (mark);
|
}
|
}
|
}
|
}
|
|
|
/* Assuming that B is a watchpoint: returns true if the current thread
|
/* Assuming that B is a watchpoint: returns true if the current thread
|
and its running state are safe to evaluate or update watchpoint B.
|
and its running state are safe to evaluate or update watchpoint B.
|
Watchpoints on local expressions need to be evaluated in the
|
Watchpoints on local expressions need to be evaluated in the
|
context of the thread that was current when the watchpoint was
|
context of the thread that was current when the watchpoint was
|
created, and, that thread needs to be stopped to be able to select
|
created, and, that thread needs to be stopped to be able to select
|
the correct frame context. Watchpoints on global expressions can
|
the correct frame context. Watchpoints on global expressions can
|
be evaluated on any thread, and in any state. It is presently left
|
be evaluated on any thread, and in any state. It is presently left
|
to the target allowing memory accesses when threads are
|
to the target allowing memory accesses when threads are
|
running. */
|
running. */
|
|
|
static int
|
static int
|
watchpoint_in_thread_scope (struct breakpoint *b)
|
watchpoint_in_thread_scope (struct breakpoint *b)
|
{
|
{
|
return (ptid_equal (b->watchpoint_thread, null_ptid)
|
return (ptid_equal (b->watchpoint_thread, null_ptid)
|
|| (ptid_equal (inferior_ptid, b->watchpoint_thread)
|
|| (ptid_equal (inferior_ptid, b->watchpoint_thread)
|
&& !is_executing (inferior_ptid)));
|
&& !is_executing (inferior_ptid)));
|
}
|
}
|
|
|
/* Assuming that B is a watchpoint:
|
/* Assuming that B is a watchpoint:
|
- Reparse watchpoint expression, if REPARSE is non-zero
|
- Reparse watchpoint expression, if REPARSE is non-zero
|
- Evaluate expression and store the result in B->val
|
- Evaluate expression and store the result in B->val
|
- Evaluate the condition if there is one, and store the result
|
- Evaluate the condition if there is one, and store the result
|
in b->loc->cond.
|
in b->loc->cond.
|
- Update the list of values that must be watched in B->loc.
|
- Update the list of values that must be watched in B->loc.
|
|
|
If the watchpoint disposition is disp_del_at_next_stop, then do nothing.
|
If the watchpoint disposition is disp_del_at_next_stop, then do nothing.
|
If this is local watchpoint that is out of scope, delete it.
|
If this is local watchpoint that is out of scope, delete it.
|
|
|
Even with `set breakpoint always-inserted on' the watchpoints are removed
|
Even with `set breakpoint always-inserted on' the watchpoints are removed
|
+ inserted on each stop here. Normal breakpoints must never be removed
|
+ inserted on each stop here. Normal breakpoints must never be removed
|
because they might be missed by a running thread when debugging in non-stop
|
because they might be missed by a running thread when debugging in non-stop
|
mode. On the other hand, hardware watchpoints (is_hardware_watchpoint;
|
mode. On the other hand, hardware watchpoints (is_hardware_watchpoint;
|
processed here) are specific to each LWP since they are stored in each LWP's
|
processed here) are specific to each LWP since they are stored in each LWP's
|
hardware debug registers. Therefore, such LWP must be stopped first in
|
hardware debug registers. Therefore, such LWP must be stopped first in
|
order to be able to modify its hardware watchpoints.
|
order to be able to modify its hardware watchpoints.
|
|
|
Hardware watchpoints must be reset exactly once after being presented to the
|
Hardware watchpoints must be reset exactly once after being presented to the
|
user. It cannot be done sooner, because it would reset the data used to
|
user. It cannot be done sooner, because it would reset the data used to
|
present the watchpoint hit to the user. And it must not be done later
|
present the watchpoint hit to the user. And it must not be done later
|
because it could display the same single watchpoint hit during multiple GDB
|
because it could display the same single watchpoint hit during multiple GDB
|
stops. Note that the latter is relevant only to the hardware watchpoint
|
stops. Note that the latter is relevant only to the hardware watchpoint
|
types bp_read_watchpoint and bp_access_watchpoint. False hit by
|
types bp_read_watchpoint and bp_access_watchpoint. False hit by
|
bp_hardware_watchpoint is not user-visible - its hit is suppressed if the
|
bp_hardware_watchpoint is not user-visible - its hit is suppressed if the
|
memory content has not changed.
|
memory content has not changed.
|
|
|
The following constraints influence the location where we can reset hardware
|
The following constraints influence the location where we can reset hardware
|
watchpoints:
|
watchpoints:
|
|
|
* target_stopped_by_watchpoint and target_stopped_data_address are called
|
* target_stopped_by_watchpoint and target_stopped_data_address are called
|
several times when GDB stops.
|
several times when GDB stops.
|
|
|
[linux]
|
[linux]
|
* Multiple hardware watchpoints can be hit at the same time, causing GDB to
|
* Multiple hardware watchpoints can be hit at the same time, causing GDB to
|
stop. GDB only presents one hardware watchpoint hit at a time as the
|
stop. GDB only presents one hardware watchpoint hit at a time as the
|
reason for stopping, and all the other hits are presented later, one after
|
reason for stopping, and all the other hits are presented later, one after
|
the other, each time the user requests the execution to be resumed.
|
the other, each time the user requests the execution to be resumed.
|
Execution is not resumed for the threads still having pending hit event
|
Execution is not resumed for the threads still having pending hit event
|
stored in LWP_INFO->STATUS. While the watchpoint is already removed from
|
stored in LWP_INFO->STATUS. While the watchpoint is already removed from
|
the inferior on the first stop the thread hit event is kept being reported
|
the inferior on the first stop the thread hit event is kept being reported
|
from its cached value by linux_nat_stopped_data_address until the real
|
from its cached value by linux_nat_stopped_data_address until the real
|
thread resume happens after the watchpoint gets presented and thus its
|
thread resume happens after the watchpoint gets presented and thus its
|
LWP_INFO->STATUS gets reset.
|
LWP_INFO->STATUS gets reset.
|
|
|
Therefore the hardware watchpoint hit can get safely reset on the watchpoint
|
Therefore the hardware watchpoint hit can get safely reset on the watchpoint
|
removal from inferior. */
|
removal from inferior. */
|
|
|
static void
|
static void
|
update_watchpoint (struct breakpoint *b, int reparse)
|
update_watchpoint (struct breakpoint *b, int reparse)
|
{
|
{
|
int within_current_scope;
|
int within_current_scope;
|
struct frame_id saved_frame_id;
|
struct frame_id saved_frame_id;
|
struct bp_location *loc;
|
struct bp_location *loc;
|
int frame_saved;
|
int frame_saved;
|
bpstat bs;
|
bpstat bs;
|
|
|
/* If this is a local watchpoint, we only want to check if the
|
/* If this is a local watchpoint, we only want to check if the
|
watchpoint frame is in scope if the current thread is the thread
|
watchpoint frame is in scope if the current thread is the thread
|
that was used to create the watchpoint. */
|
that was used to create the watchpoint. */
|
if (!watchpoint_in_thread_scope (b))
|
if (!watchpoint_in_thread_scope (b))
|
return;
|
return;
|
|
|
/* We don't free locations. They are stored in bp_location array and
|
/* We don't free locations. They are stored in bp_location array and
|
update_global_locations will eventually delete them and remove
|
update_global_locations will eventually delete them and remove
|
breakpoints if needed. */
|
breakpoints if needed. */
|
b->loc = NULL;
|
b->loc = NULL;
|
|
|
if (b->disposition == disp_del_at_next_stop)
|
if (b->disposition == disp_del_at_next_stop)
|
return;
|
return;
|
|
|
frame_saved = 0;
|
frame_saved = 0;
|
|
|
/* Determine if the watchpoint is within scope. */
|
/* Determine if the watchpoint is within scope. */
|
if (b->exp_valid_block == NULL)
|
if (b->exp_valid_block == NULL)
|
within_current_scope = 1;
|
within_current_scope = 1;
|
else
|
else
|
{
|
{
|
struct frame_info *fi;
|
struct frame_info *fi;
|
|
|
/* Save the current frame's ID so we can restore it after
|
/* Save the current frame's ID so we can restore it after
|
evaluating the watchpoint expression on its own frame. */
|
evaluating the watchpoint expression on its own frame. */
|
/* FIXME drow/2003-09-09: It would be nice if evaluate_expression
|
/* FIXME drow/2003-09-09: It would be nice if evaluate_expression
|
took a frame parameter, so that we didn't have to change the
|
took a frame parameter, so that we didn't have to change the
|
selected frame. */
|
selected frame. */
|
frame_saved = 1;
|
frame_saved = 1;
|
saved_frame_id = get_frame_id (get_selected_frame (NULL));
|
saved_frame_id = get_frame_id (get_selected_frame (NULL));
|
|
|
fi = frame_find_by_id (b->watchpoint_frame);
|
fi = frame_find_by_id (b->watchpoint_frame);
|
within_current_scope = (fi != NULL);
|
within_current_scope = (fi != NULL);
|
if (within_current_scope)
|
if (within_current_scope)
|
select_frame (fi);
|
select_frame (fi);
|
}
|
}
|
|
|
if (within_current_scope && reparse)
|
if (within_current_scope && reparse)
|
{
|
{
|
char *s;
|
char *s;
|
if (b->exp)
|
if (b->exp)
|
{
|
{
|
xfree (b->exp);
|
xfree (b->exp);
|
b->exp = NULL;
|
b->exp = NULL;
|
}
|
}
|
s = b->exp_string;
|
s = b->exp_string;
|
b->exp = parse_exp_1 (&s, b->exp_valid_block, 0);
|
b->exp = parse_exp_1 (&s, b->exp_valid_block, 0);
|
/* If the meaning of expression itself changed, the old value is
|
/* If the meaning of expression itself changed, the old value is
|
no longer relevant. We don't want to report a watchpoint hit
|
no longer relevant. We don't want to report a watchpoint hit
|
to the user when the old value and the new value may actually
|
to the user when the old value and the new value may actually
|
be completely different objects. */
|
be completely different objects. */
|
value_free (b->val);
|
value_free (b->val);
|
b->val = NULL;
|
b->val = NULL;
|
b->val_valid = 0;
|
b->val_valid = 0;
|
}
|
}
|
|
|
/* If we failed to parse the expression, for example because
|
/* If we failed to parse the expression, for example because
|
it refers to a global variable in a not-yet-loaded shared library,
|
it refers to a global variable in a not-yet-loaded shared library,
|
don't try to insert watchpoint. We don't automatically delete
|
don't try to insert watchpoint. We don't automatically delete
|
such watchpoint, though, since failure to parse expression
|
such watchpoint, though, since failure to parse expression
|
is different from out-of-scope watchpoint. */
|
is different from out-of-scope watchpoint. */
|
if ( !target_has_execution)
|
if ( !target_has_execution)
|
{
|
{
|
/* Without execution, memory can't change. No use to try and
|
/* Without execution, memory can't change. No use to try and
|
set watchpoint locations. The watchpoint will be reset when
|
set watchpoint locations. The watchpoint will be reset when
|
the target gains execution, through breakpoint_re_set. */
|
the target gains execution, through breakpoint_re_set. */
|
}
|
}
|
else if (within_current_scope && b->exp)
|
else if (within_current_scope && b->exp)
|
{
|
{
|
struct value *val_chain, *v, *result, *next;
|
struct value *val_chain, *v, *result, *next;
|
struct program_space *frame_pspace;
|
struct program_space *frame_pspace;
|
|
|
fetch_watchpoint_value (b->exp, &v, &result, &val_chain);
|
fetch_watchpoint_value (b->exp, &v, &result, &val_chain);
|
|
|
/* Avoid setting b->val if it's already set. The meaning of
|
/* Avoid setting b->val if it's already set. The meaning of
|
b->val is 'the last value' user saw, and we should update
|
b->val is 'the last value' user saw, and we should update
|
it only if we reported that last value to user. As it
|
it only if we reported that last value to user. As it
|
happens, the code that reports it updates b->val directly. */
|
happens, the code that reports it updates b->val directly. */
|
if (!b->val_valid)
|
if (!b->val_valid)
|
{
|
{
|
b->val = v;
|
b->val = v;
|
b->val_valid = 1;
|
b->val_valid = 1;
|
}
|
}
|
|
|
/* Change the type of breakpoint between hardware assisted or an
|
/* Change the type of breakpoint between hardware assisted or an
|
ordinary watchpoint depending on the hardware support and free
|
ordinary watchpoint depending on the hardware support and free
|
hardware slots. REPARSE is set when the inferior is started. */
|
hardware slots. REPARSE is set when the inferior is started. */
|
if ((b->type == bp_watchpoint || b->type == bp_hardware_watchpoint)
|
if ((b->type == bp_watchpoint || b->type == bp_hardware_watchpoint)
|
&& reparse)
|
&& reparse)
|
{
|
{
|
int i, mem_cnt, other_type_used;
|
int i, mem_cnt, other_type_used;
|
|
|
/* We need to determine how many resources are already used
|
/* We need to determine how many resources are already used
|
for all other hardware watchpoints to see if we still have
|
for all other hardware watchpoints to see if we still have
|
enough resources to also fit this watchpoint in as well.
|
enough resources to also fit this watchpoint in as well.
|
To avoid the hw_watchpoint_used_count call below from counting
|
To avoid the hw_watchpoint_used_count call below from counting
|
this watchpoint, make sure that it is marked as a software
|
this watchpoint, make sure that it is marked as a software
|
watchpoint. */
|
watchpoint. */
|
b->type = bp_watchpoint;
|
b->type = bp_watchpoint;
|
i = hw_watchpoint_used_count (bp_hardware_watchpoint,
|
i = hw_watchpoint_used_count (bp_hardware_watchpoint,
|
&other_type_used);
|
&other_type_used);
|
mem_cnt = can_use_hardware_watchpoint (val_chain);
|
mem_cnt = can_use_hardware_watchpoint (val_chain);
|
|
|
if (!mem_cnt)
|
if (!mem_cnt)
|
b->type = bp_watchpoint;
|
b->type = bp_watchpoint;
|
else
|
else
|
{
|
{
|
int target_resources_ok = target_can_use_hardware_watchpoint
|
int target_resources_ok = target_can_use_hardware_watchpoint
|
(bp_hardware_watchpoint, i + mem_cnt, other_type_used);
|
(bp_hardware_watchpoint, i + mem_cnt, other_type_used);
|
if (target_resources_ok <= 0)
|
if (target_resources_ok <= 0)
|
b->type = bp_watchpoint;
|
b->type = bp_watchpoint;
|
else
|
else
|
b->type = bp_hardware_watchpoint;
|
b->type = bp_hardware_watchpoint;
|
}
|
}
|
}
|
}
|
|
|
frame_pspace = get_frame_program_space (get_selected_frame (NULL));
|
frame_pspace = get_frame_program_space (get_selected_frame (NULL));
|
|
|
/* Look at each value on the value chain. */
|
/* Look at each value on the value chain. */
|
for (v = val_chain; v; v = next)
|
for (v = val_chain; v; v = next)
|
{
|
{
|
/* If it's a memory location, and GDB actually needed
|
/* If it's a memory location, and GDB actually needed
|
its contents to evaluate the expression, then we
|
its contents to evaluate the expression, then we
|
must watch it. If the first value returned is
|
must watch it. If the first value returned is
|
still lazy, that means an error occurred reading it;
|
still lazy, that means an error occurred reading it;
|
watch it anyway in case it becomes readable. */
|
watch it anyway in case it becomes readable. */
|
if (VALUE_LVAL (v) == lval_memory
|
if (VALUE_LVAL (v) == lval_memory
|
&& (v == val_chain || ! value_lazy (v)))
|
&& (v == val_chain || ! value_lazy (v)))
|
{
|
{
|
struct type *vtype = check_typedef (value_type (v));
|
struct type *vtype = check_typedef (value_type (v));
|
|
|
/* We only watch structs and arrays if user asked
|
/* We only watch structs and arrays if user asked
|
for it explicitly, never if they just happen to
|
for it explicitly, never if they just happen to
|
appear in the middle of some value chain. */
|
appear in the middle of some value chain. */
|
if (v == result
|
if (v == result
|
|| (TYPE_CODE (vtype) != TYPE_CODE_STRUCT
|
|| (TYPE_CODE (vtype) != TYPE_CODE_STRUCT
|
&& TYPE_CODE (vtype) != TYPE_CODE_ARRAY))
|
&& TYPE_CODE (vtype) != TYPE_CODE_ARRAY))
|
{
|
{
|
CORE_ADDR addr;
|
CORE_ADDR addr;
|
int len, type;
|
int len, type;
|
struct bp_location *loc, **tmp;
|
struct bp_location *loc, **tmp;
|
|
|
addr = value_address (v);
|
addr = value_address (v);
|
len = TYPE_LENGTH (value_type (v));
|
len = TYPE_LENGTH (value_type (v));
|
type = hw_write;
|
type = hw_write;
|
if (b->type == bp_read_watchpoint)
|
if (b->type == bp_read_watchpoint)
|
type = hw_read;
|
type = hw_read;
|
else if (b->type == bp_access_watchpoint)
|
else if (b->type == bp_access_watchpoint)
|
type = hw_access;
|
type = hw_access;
|
|
|
loc = allocate_bp_location (b);
|
loc = allocate_bp_location (b);
|
for (tmp = &(b->loc); *tmp != NULL; tmp = &((*tmp)->next))
|
for (tmp = &(b->loc); *tmp != NULL; tmp = &((*tmp)->next))
|
;
|
;
|
*tmp = loc;
|
*tmp = loc;
|
loc->gdbarch = get_type_arch (value_type (v));
|
loc->gdbarch = get_type_arch (value_type (v));
|
|
|
loc->pspace = frame_pspace;
|
loc->pspace = frame_pspace;
|
loc->address = addr;
|
loc->address = addr;
|
loc->length = len;
|
loc->length = len;
|
loc->watchpoint_type = type;
|
loc->watchpoint_type = type;
|
}
|
}
|
}
|
}
|
|
|
next = value_next (v);
|
next = value_next (v);
|
if (v != b->val)
|
if (v != b->val)
|
value_free (v);
|
value_free (v);
|
}
|
}
|
|
|
/* We just regenerated the list of breakpoint locations.
|
/* We just regenerated the list of breakpoint locations.
|
The new location does not have its condition field set to anything
|
The new location does not have its condition field set to anything
|
and therefore, we must always reparse the cond_string, independently
|
and therefore, we must always reparse the cond_string, independently
|
of the value of the reparse flag. */
|
of the value of the reparse flag. */
|
if (b->cond_string != NULL)
|
if (b->cond_string != NULL)
|
{
|
{
|
char *s = b->cond_string;
|
char *s = b->cond_string;
|
b->loc->cond = parse_exp_1 (&s, b->exp_valid_block, 0);
|
b->loc->cond = parse_exp_1 (&s, b->exp_valid_block, 0);
|
}
|
}
|
}
|
}
|
else if (!within_current_scope)
|
else if (!within_current_scope)
|
{
|
{
|
printf_filtered (_("\
|
printf_filtered (_("\
|
Watchpoint %d deleted because the program has left the block \n\
|
Watchpoint %d deleted because the program has left the block \n\
|
in which its expression is valid.\n"),
|
in which its expression is valid.\n"),
|
b->number);
|
b->number);
|
if (b->related_breakpoint)
|
if (b->related_breakpoint)
|
b->related_breakpoint->disposition = disp_del_at_next_stop;
|
b->related_breakpoint->disposition = disp_del_at_next_stop;
|
b->disposition = disp_del_at_next_stop;
|
b->disposition = disp_del_at_next_stop;
|
}
|
}
|
|
|
/* Restore the selected frame. */
|
/* Restore the selected frame. */
|
if (frame_saved)
|
if (frame_saved)
|
select_frame (frame_find_by_id (saved_frame_id));
|
select_frame (frame_find_by_id (saved_frame_id));
|
}
|
}
|
|
|
|
|
/* Returns 1 iff breakpoint location should be
|
/* Returns 1 iff breakpoint location should be
|
inserted in the inferior. */
|
inserted in the inferior. */
|
static int
|
static int
|
should_be_inserted (struct bp_location *bpt)
|
should_be_inserted (struct bp_location *bpt)
|
{
|
{
|
if (!breakpoint_enabled (bpt->owner))
|
if (!breakpoint_enabled (bpt->owner))
|
return 0;
|
return 0;
|
|
|
if (bpt->owner->disposition == disp_del_at_next_stop)
|
if (bpt->owner->disposition == disp_del_at_next_stop)
|
return 0;
|
return 0;
|
|
|
if (!bpt->enabled || bpt->shlib_disabled || bpt->duplicate)
|
if (!bpt->enabled || bpt->shlib_disabled || bpt->duplicate)
|
return 0;
|
return 0;
|
|
|
/* This is set for example, when we're attached to the parent of a
|
/* This is set for example, when we're attached to the parent of a
|
vfork, and have detached from the child. The child is running
|
vfork, and have detached from the child. The child is running
|
free, and we expect it to do an exec or exit, at which point the
|
free, and we expect it to do an exec or exit, at which point the
|
OS makes the parent schedulable again (and the target reports
|
OS makes the parent schedulable again (and the target reports
|
that the vfork is done). Until the child is done with the shared
|
that the vfork is done). Until the child is done with the shared
|
memory region, do not insert breakpoints in the parent, otherwise
|
memory region, do not insert breakpoints in the parent, otherwise
|
the child could still trip on the parent's breakpoints. Since
|
the child could still trip on the parent's breakpoints. Since
|
the parent is blocked anyway, it won't miss any breakpoint. */
|
the parent is blocked anyway, it won't miss any breakpoint. */
|
if (bpt->pspace->breakpoints_not_allowed)
|
if (bpt->pspace->breakpoints_not_allowed)
|
return 0;
|
return 0;
|
|
|
/* Tracepoints are inserted by the target at a time of its choosing,
|
/* Tracepoints are inserted by the target at a time of its choosing,
|
not by us. */
|
not by us. */
|
if (tracepoint_type (bpt->owner))
|
if (tracepoint_type (bpt->owner))
|
return 0;
|
return 0;
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Insert a low-level "breakpoint" of some type. BPT is the breakpoint.
|
/* Insert a low-level "breakpoint" of some type. BPT is the breakpoint.
|
Any error messages are printed to TMP_ERROR_STREAM; and DISABLED_BREAKS,
|
Any error messages are printed to TMP_ERROR_STREAM; and DISABLED_BREAKS,
|
and HW_BREAKPOINT_ERROR are used to report problems.
|
and HW_BREAKPOINT_ERROR are used to report problems.
|
|
|
NOTE drow/2003-09-09: This routine could be broken down to an object-style
|
NOTE drow/2003-09-09: This routine could be broken down to an object-style
|
method for each breakpoint or catchpoint type. */
|
method for each breakpoint or catchpoint type. */
|
static int
|
static int
|
insert_bp_location (struct bp_location *bpt,
|
insert_bp_location (struct bp_location *bpt,
|
struct ui_file *tmp_error_stream,
|
struct ui_file *tmp_error_stream,
|
int *disabled_breaks,
|
int *disabled_breaks,
|
int *hw_breakpoint_error)
|
int *hw_breakpoint_error)
|
{
|
{
|
int val = 0;
|
int val = 0;
|
|
|
if (!should_be_inserted (bpt) || bpt->inserted)
|
if (!should_be_inserted (bpt) || bpt->inserted)
|
return 0;
|
return 0;
|
|
|
/* Initialize the target-specific information. */
|
/* Initialize the target-specific information. */
|
memset (&bpt->target_info, 0, sizeof (bpt->target_info));
|
memset (&bpt->target_info, 0, sizeof (bpt->target_info));
|
bpt->target_info.placed_address = bpt->address;
|
bpt->target_info.placed_address = bpt->address;
|
bpt->target_info.placed_address_space = bpt->pspace->aspace;
|
bpt->target_info.placed_address_space = bpt->pspace->aspace;
|
|
|
if (bpt->loc_type == bp_loc_software_breakpoint
|
if (bpt->loc_type == bp_loc_software_breakpoint
|
|| bpt->loc_type == bp_loc_hardware_breakpoint)
|
|| bpt->loc_type == bp_loc_hardware_breakpoint)
|
{
|
{
|
if (bpt->owner->type != bp_hardware_breakpoint)
|
if (bpt->owner->type != bp_hardware_breakpoint)
|
{
|
{
|
/* If the explicitly specified breakpoint type
|
/* If the explicitly specified breakpoint type
|
is not hardware breakpoint, check the memory map to see
|
is not hardware breakpoint, check the memory map to see
|
if the breakpoint address is in read only memory or not.
|
if the breakpoint address is in read only memory or not.
|
Two important cases are:
|
Two important cases are:
|
- location type is not hardware breakpoint, memory
|
- location type is not hardware breakpoint, memory
|
is readonly. We change the type of the location to
|
is readonly. We change the type of the location to
|
hardware breakpoint.
|
hardware breakpoint.
|
- location type is hardware breakpoint, memory is read-write.
|
- location type is hardware breakpoint, memory is read-write.
|
This means we've previously made the location hardware one, but
|
This means we've previously made the location hardware one, but
|
then the memory map changed, so we undo.
|
then the memory map changed, so we undo.
|
|
|
When breakpoints are removed, remove_breakpoints will
|
When breakpoints are removed, remove_breakpoints will
|
use location types we've just set here, the only possible
|
use location types we've just set here, the only possible
|
problem is that memory map has changed during running program,
|
problem is that memory map has changed during running program,
|
but it's not going to work anyway with current gdb. */
|
but it's not going to work anyway with current gdb. */
|
struct mem_region *mr
|
struct mem_region *mr
|
= lookup_mem_region (bpt->target_info.placed_address);
|
= lookup_mem_region (bpt->target_info.placed_address);
|
|
|
if (mr)
|
if (mr)
|
{
|
{
|
if (automatic_hardware_breakpoints)
|
if (automatic_hardware_breakpoints)
|
{
|
{
|
int changed = 0;
|
int changed = 0;
|
enum bp_loc_type new_type;
|
enum bp_loc_type new_type;
|
|
|
if (mr->attrib.mode != MEM_RW)
|
if (mr->attrib.mode != MEM_RW)
|
new_type = bp_loc_hardware_breakpoint;
|
new_type = bp_loc_hardware_breakpoint;
|
else
|
else
|
new_type = bp_loc_software_breakpoint;
|
new_type = bp_loc_software_breakpoint;
|
|
|
if (new_type != bpt->loc_type)
|
if (new_type != bpt->loc_type)
|
{
|
{
|
static int said = 0;
|
static int said = 0;
|
bpt->loc_type = new_type;
|
bpt->loc_type = new_type;
|
if (!said)
|
if (!said)
|
{
|
{
|
fprintf_filtered (gdb_stdout, _("\
|
fprintf_filtered (gdb_stdout, _("\
|
Note: automatically using hardware breakpoints for read-only addresses.\n"));
|
Note: automatically using hardware breakpoints for read-only addresses.\n"));
|
said = 1;
|
said = 1;
|
}
|
}
|
}
|
}
|
}
|
}
|
else if (bpt->loc_type == bp_loc_software_breakpoint
|
else if (bpt->loc_type == bp_loc_software_breakpoint
|
&& mr->attrib.mode != MEM_RW)
|
&& mr->attrib.mode != MEM_RW)
|
warning (_("cannot set software breakpoint at readonly address %s"),
|
warning (_("cannot set software breakpoint at readonly address %s"),
|
paddress (bpt->gdbarch, bpt->address));
|
paddress (bpt->gdbarch, bpt->address));
|
}
|
}
|
}
|
}
|
|
|
/* First check to see if we have to handle an overlay. */
|
/* First check to see if we have to handle an overlay. */
|
if (overlay_debugging == ovly_off
|
if (overlay_debugging == ovly_off
|
|| bpt->section == NULL
|
|| bpt->section == NULL
|
|| !(section_is_overlay (bpt->section)))
|
|| !(section_is_overlay (bpt->section)))
|
{
|
{
|
/* No overlay handling: just set the breakpoint. */
|
/* No overlay handling: just set the breakpoint. */
|
|
|
if (bpt->loc_type == bp_loc_hardware_breakpoint)
|
if (bpt->loc_type == bp_loc_hardware_breakpoint)
|
val = target_insert_hw_breakpoint (bpt->gdbarch,
|
val = target_insert_hw_breakpoint (bpt->gdbarch,
|
&bpt->target_info);
|
&bpt->target_info);
|
else
|
else
|
val = target_insert_breakpoint (bpt->gdbarch,
|
val = target_insert_breakpoint (bpt->gdbarch,
|
&bpt->target_info);
|
&bpt->target_info);
|
}
|
}
|
else
|
else
|
{
|
{
|
/* This breakpoint is in an overlay section.
|
/* This breakpoint is in an overlay section.
|
Shall we set a breakpoint at the LMA? */
|
Shall we set a breakpoint at the LMA? */
|
if (!overlay_events_enabled)
|
if (!overlay_events_enabled)
|
{
|
{
|
/* Yes -- overlay event support is not active,
|
/* Yes -- overlay event support is not active,
|
so we must try to set a breakpoint at the LMA.
|
so we must try to set a breakpoint at the LMA.
|
This will not work for a hardware breakpoint. */
|
This will not work for a hardware breakpoint. */
|
if (bpt->loc_type == bp_loc_hardware_breakpoint)
|
if (bpt->loc_type == bp_loc_hardware_breakpoint)
|
warning (_("hardware breakpoint %d not supported in overlay!"),
|
warning (_("hardware breakpoint %d not supported in overlay!"),
|
bpt->owner->number);
|
bpt->owner->number);
|
else
|
else
|
{
|
{
|
CORE_ADDR addr = overlay_unmapped_address (bpt->address,
|
CORE_ADDR addr = overlay_unmapped_address (bpt->address,
|
bpt->section);
|
bpt->section);
|
/* Set a software (trap) breakpoint at the LMA. */
|
/* Set a software (trap) breakpoint at the LMA. */
|
bpt->overlay_target_info = bpt->target_info;
|
bpt->overlay_target_info = bpt->target_info;
|
bpt->overlay_target_info.placed_address = addr;
|
bpt->overlay_target_info.placed_address = addr;
|
val = target_insert_breakpoint (bpt->gdbarch,
|
val = target_insert_breakpoint (bpt->gdbarch,
|
&bpt->overlay_target_info);
|
&bpt->overlay_target_info);
|
if (val != 0)
|
if (val != 0)
|
fprintf_unfiltered (tmp_error_stream,
|
fprintf_unfiltered (tmp_error_stream,
|
"Overlay breakpoint %d failed: in ROM?\n",
|
"Overlay breakpoint %d failed: in ROM?\n",
|
bpt->owner->number);
|
bpt->owner->number);
|
}
|
}
|
}
|
}
|
/* Shall we set a breakpoint at the VMA? */
|
/* Shall we set a breakpoint at the VMA? */
|
if (section_is_mapped (bpt->section))
|
if (section_is_mapped (bpt->section))
|
{
|
{
|
/* Yes. This overlay section is mapped into memory. */
|
/* Yes. This overlay section is mapped into memory. */
|
if (bpt->loc_type == bp_loc_hardware_breakpoint)
|
if (bpt->loc_type == bp_loc_hardware_breakpoint)
|
val = target_insert_hw_breakpoint (bpt->gdbarch,
|
val = target_insert_hw_breakpoint (bpt->gdbarch,
|
&bpt->target_info);
|
&bpt->target_info);
|
else
|
else
|
val = target_insert_breakpoint (bpt->gdbarch,
|
val = target_insert_breakpoint (bpt->gdbarch,
|
&bpt->target_info);
|
&bpt->target_info);
|
}
|
}
|
else
|
else
|
{
|
{
|
/* No. This breakpoint will not be inserted.
|
/* No. This breakpoint will not be inserted.
|
No error, but do not mark the bp as 'inserted'. */
|
No error, but do not mark the bp as 'inserted'. */
|
return 0;
|
return 0;
|
}
|
}
|
}
|
}
|
|
|
if (val)
|
if (val)
|
{
|
{
|
/* Can't set the breakpoint. */
|
/* Can't set the breakpoint. */
|
if (solib_name_from_address (bpt->pspace, bpt->address))
|
if (solib_name_from_address (bpt->pspace, bpt->address))
|
{
|
{
|
/* See also: disable_breakpoints_in_shlibs. */
|
/* See also: disable_breakpoints_in_shlibs. */
|
val = 0;
|
val = 0;
|
bpt->shlib_disabled = 1;
|
bpt->shlib_disabled = 1;
|
if (!*disabled_breaks)
|
if (!*disabled_breaks)
|
{
|
{
|
fprintf_unfiltered (tmp_error_stream,
|
fprintf_unfiltered (tmp_error_stream,
|
"Cannot insert breakpoint %d.\n",
|
"Cannot insert breakpoint %d.\n",
|
bpt->owner->number);
|
bpt->owner->number);
|
fprintf_unfiltered (tmp_error_stream,
|
fprintf_unfiltered (tmp_error_stream,
|
"Temporarily disabling shared library breakpoints:\n");
|
"Temporarily disabling shared library breakpoints:\n");
|
}
|
}
|
*disabled_breaks = 1;
|
*disabled_breaks = 1;
|
fprintf_unfiltered (tmp_error_stream,
|
fprintf_unfiltered (tmp_error_stream,
|
"breakpoint #%d\n", bpt->owner->number);
|
"breakpoint #%d\n", bpt->owner->number);
|
}
|
}
|
else
|
else
|
{
|
{
|
if (bpt->loc_type == bp_loc_hardware_breakpoint)
|
if (bpt->loc_type == bp_loc_hardware_breakpoint)
|
{
|
{
|
*hw_breakpoint_error = 1;
|
*hw_breakpoint_error = 1;
|
fprintf_unfiltered (tmp_error_stream,
|
fprintf_unfiltered (tmp_error_stream,
|
"Cannot insert hardware breakpoint %d.\n",
|
"Cannot insert hardware breakpoint %d.\n",
|
bpt->owner->number);
|
bpt->owner->number);
|
}
|
}
|
else
|
else
|
{
|
{
|
fprintf_unfiltered (tmp_error_stream,
|
fprintf_unfiltered (tmp_error_stream,
|
"Cannot insert breakpoint %d.\n",
|
"Cannot insert breakpoint %d.\n",
|
bpt->owner->number);
|
bpt->owner->number);
|
fprintf_filtered (tmp_error_stream,
|
fprintf_filtered (tmp_error_stream,
|
"Error accessing memory address ");
|
"Error accessing memory address ");
|
fputs_filtered (paddress (bpt->gdbarch, bpt->address),
|
fputs_filtered (paddress (bpt->gdbarch, bpt->address),
|
tmp_error_stream);
|
tmp_error_stream);
|
fprintf_filtered (tmp_error_stream, ": %s.\n",
|
fprintf_filtered (tmp_error_stream, ": %s.\n",
|
safe_strerror (val));
|
safe_strerror (val));
|
}
|
}
|
|
|
}
|
}
|
}
|
}
|
else
|
else
|
bpt->inserted = 1;
|
bpt->inserted = 1;
|
|
|
return val;
|
return val;
|
}
|
}
|
|
|
else if (bpt->loc_type == bp_loc_hardware_watchpoint
|
else if (bpt->loc_type == bp_loc_hardware_watchpoint
|
/* NOTE drow/2003-09-08: This state only exists for removing
|
/* NOTE drow/2003-09-08: This state only exists for removing
|
watchpoints. It's not clear that it's necessary... */
|
watchpoints. It's not clear that it's necessary... */
|
&& bpt->owner->disposition != disp_del_at_next_stop)
|
&& bpt->owner->disposition != disp_del_at_next_stop)
|
{
|
{
|
val = target_insert_watchpoint (bpt->address,
|
val = target_insert_watchpoint (bpt->address,
|
bpt->length,
|
bpt->length,
|
bpt->watchpoint_type);
|
bpt->watchpoint_type);
|
bpt->inserted = (val != -1);
|
bpt->inserted = (val != -1);
|
}
|
}
|
|
|
else if (bpt->owner->type == bp_catchpoint)
|
else if (bpt->owner->type == bp_catchpoint)
|
{
|
{
|
struct gdb_exception e = catch_exception (uiout, insert_catchpoint,
|
struct gdb_exception e = catch_exception (uiout, insert_catchpoint,
|
bpt->owner, RETURN_MASK_ERROR);
|
bpt->owner, RETURN_MASK_ERROR);
|
exception_fprintf (gdb_stderr, e, "warning: inserting catchpoint %d: ",
|
exception_fprintf (gdb_stderr, e, "warning: inserting catchpoint %d: ",
|
bpt->owner->number);
|
bpt->owner->number);
|
if (e.reason < 0)
|
if (e.reason < 0)
|
bpt->owner->enable_state = bp_disabled;
|
bpt->owner->enable_state = bp_disabled;
|
else
|
else
|
bpt->inserted = 1;
|
bpt->inserted = 1;
|
|
|
/* We've already printed an error message if there was a problem
|
/* We've already printed an error message if there was a problem
|
inserting this catchpoint, and we've disabled the catchpoint,
|
inserting this catchpoint, and we've disabled the catchpoint,
|
so just return success. */
|
so just return success. */
|
return 0;
|
return 0;
|
}
|
}
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* This function is called when program space PSPACE is about to be
|
/* This function is called when program space PSPACE is about to be
|
deleted. It takes care of updating breakpoints to not reference
|
deleted. It takes care of updating breakpoints to not reference
|
PSPACE anymore. */
|
PSPACE anymore. */
|
|
|
void
|
void
|
breakpoint_program_space_exit (struct program_space *pspace)
|
breakpoint_program_space_exit (struct program_space *pspace)
|
{
|
{
|
struct breakpoint *b, *b_temp;
|
struct breakpoint *b, *b_temp;
|
struct bp_location *loc, **loc_temp;
|
struct bp_location *loc, **loc_temp;
|
|
|
/* Remove any breakpoint that was set through this program space. */
|
/* Remove any breakpoint that was set through this program space. */
|
ALL_BREAKPOINTS_SAFE (b, b_temp)
|
ALL_BREAKPOINTS_SAFE (b, b_temp)
|
{
|
{
|
if (b->pspace == pspace)
|
if (b->pspace == pspace)
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
}
|
}
|
|
|
/* Breakpoints set through other program spaces could have locations
|
/* Breakpoints set through other program spaces could have locations
|
bound to PSPACE as well. Remove those. */
|
bound to PSPACE as well. Remove those. */
|
ALL_BP_LOCATIONS (loc, loc_temp)
|
ALL_BP_LOCATIONS (loc, loc_temp)
|
{
|
{
|
struct bp_location *tmp;
|
struct bp_location *tmp;
|
|
|
if (loc->pspace == pspace)
|
if (loc->pspace == pspace)
|
{
|
{
|
if (loc->owner->loc == loc)
|
if (loc->owner->loc == loc)
|
loc->owner->loc = loc->next;
|
loc->owner->loc = loc->next;
|
else
|
else
|
for (tmp = loc->owner->loc; tmp->next != NULL; tmp = tmp->next)
|
for (tmp = loc->owner->loc; tmp->next != NULL; tmp = tmp->next)
|
if (tmp->next == loc)
|
if (tmp->next == loc)
|
{
|
{
|
tmp->next = loc->next;
|
tmp->next = loc->next;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Now update the global location list to permanently delete the
|
/* Now update the global location list to permanently delete the
|
removed locations above. */
|
removed locations above. */
|
update_global_location_list (0);
|
update_global_location_list (0);
|
}
|
}
|
|
|
/* Make sure all breakpoints are inserted in inferior.
|
/* Make sure all breakpoints are inserted in inferior.
|
Throws exception on any error.
|
Throws exception on any error.
|
A breakpoint that is already inserted won't be inserted
|
A breakpoint that is already inserted won't be inserted
|
again, so calling this function twice is safe. */
|
again, so calling this function twice is safe. */
|
void
|
void
|
insert_breakpoints (void)
|
insert_breakpoints (void)
|
{
|
{
|
struct breakpoint *bpt;
|
struct breakpoint *bpt;
|
|
|
ALL_BREAKPOINTS (bpt)
|
ALL_BREAKPOINTS (bpt)
|
if (is_hardware_watchpoint (bpt))
|
if (is_hardware_watchpoint (bpt))
|
update_watchpoint (bpt, 0 /* don't reparse. */);
|
update_watchpoint (bpt, 0 /* don't reparse. */);
|
|
|
update_global_location_list (1);
|
update_global_location_list (1);
|
|
|
/* update_global_location_list does not insert breakpoints when
|
/* update_global_location_list does not insert breakpoints when
|
always_inserted_mode is not enabled. Explicitly insert them
|
always_inserted_mode is not enabled. Explicitly insert them
|
now. */
|
now. */
|
if (!breakpoints_always_inserted_mode ())
|
if (!breakpoints_always_inserted_mode ())
|
insert_breakpoint_locations ();
|
insert_breakpoint_locations ();
|
}
|
}
|
|
|
/* insert_breakpoints is used when starting or continuing the program.
|
/* insert_breakpoints is used when starting or continuing the program.
|
remove_breakpoints is used when the program stops.
|
remove_breakpoints is used when the program stops.
|
Both return zero if successful,
|
Both return zero if successful,
|
or an `errno' value if could not write the inferior. */
|
or an `errno' value if could not write the inferior. */
|
|
|
static void
|
static void
|
insert_breakpoint_locations (void)
|
insert_breakpoint_locations (void)
|
{
|
{
|
struct breakpoint *bpt;
|
struct breakpoint *bpt;
|
struct bp_location *b, **bp_tmp;
|
struct bp_location *b, **bp_tmp;
|
int error = 0;
|
int error = 0;
|
int val = 0;
|
int val = 0;
|
int disabled_breaks = 0;
|
int disabled_breaks = 0;
|
int hw_breakpoint_error = 0;
|
int hw_breakpoint_error = 0;
|
|
|
struct ui_file *tmp_error_stream = mem_fileopen ();
|
struct ui_file *tmp_error_stream = mem_fileopen ();
|
struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_error_stream);
|
struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_error_stream);
|
|
|
/* Explicitly mark the warning -- this will only be printed if
|
/* Explicitly mark the warning -- this will only be printed if
|
there was an error. */
|
there was an error. */
|
fprintf_unfiltered (tmp_error_stream, "Warning:\n");
|
fprintf_unfiltered (tmp_error_stream, "Warning:\n");
|
|
|
save_current_space_and_thread ();
|
save_current_space_and_thread ();
|
|
|
ALL_BP_LOCATIONS (b, bp_tmp)
|
ALL_BP_LOCATIONS (b, bp_tmp)
|
{
|
{
|
struct thread_info *tp;
|
struct thread_info *tp;
|
CORE_ADDR last_addr;
|
CORE_ADDR last_addr;
|
|
|
if (!should_be_inserted (b) || b->inserted)
|
if (!should_be_inserted (b) || b->inserted)
|
continue;
|
continue;
|
|
|
/* There is no point inserting thread-specific breakpoints if the
|
/* There is no point inserting thread-specific breakpoints if the
|
thread no longer exists. */
|
thread no longer exists. */
|
if (b->owner->thread != -1
|
if (b->owner->thread != -1
|
&& !valid_thread_id (b->owner->thread))
|
&& !valid_thread_id (b->owner->thread))
|
continue;
|
continue;
|
|
|
switch_to_program_space_and_thread (b->pspace);
|
switch_to_program_space_and_thread (b->pspace);
|
|
|
/* For targets that support global breakpoints, there's no need
|
/* For targets that support global breakpoints, there's no need
|
to select an inferior to insert breakpoint to. In fact, even
|
to select an inferior to insert breakpoint to. In fact, even
|
if we aren't attached to any process yet, we should still
|
if we aren't attached to any process yet, we should still
|
insert breakpoints. */
|
insert breakpoints. */
|
if (!gdbarch_has_global_breakpoints (target_gdbarch)
|
if (!gdbarch_has_global_breakpoints (target_gdbarch)
|
&& ptid_equal (inferior_ptid, null_ptid))
|
&& ptid_equal (inferior_ptid, null_ptid))
|
continue;
|
continue;
|
|
|
val = insert_bp_location (b, tmp_error_stream,
|
val = insert_bp_location (b, tmp_error_stream,
|
&disabled_breaks,
|
&disabled_breaks,
|
&hw_breakpoint_error);
|
&hw_breakpoint_error);
|
if (val)
|
if (val)
|
error = val;
|
error = val;
|
}
|
}
|
|
|
/* If we failed to insert all locations of a watchpoint,
|
/* If we failed to insert all locations of a watchpoint,
|
remove them, as half-inserted watchpoint is of limited use. */
|
remove them, as half-inserted watchpoint is of limited use. */
|
ALL_BREAKPOINTS (bpt)
|
ALL_BREAKPOINTS (bpt)
|
{
|
{
|
int some_failed = 0;
|
int some_failed = 0;
|
struct bp_location *loc;
|
struct bp_location *loc;
|
|
|
if (!is_hardware_watchpoint (bpt))
|
if (!is_hardware_watchpoint (bpt))
|
continue;
|
continue;
|
|
|
if (!breakpoint_enabled (bpt))
|
if (!breakpoint_enabled (bpt))
|
continue;
|
continue;
|
|
|
if (bpt->disposition == disp_del_at_next_stop)
|
if (bpt->disposition == disp_del_at_next_stop)
|
continue;
|
continue;
|
|
|
for (loc = bpt->loc; loc; loc = loc->next)
|
for (loc = bpt->loc; loc; loc = loc->next)
|
if (!loc->inserted && should_be_inserted (loc))
|
if (!loc->inserted && should_be_inserted (loc))
|
{
|
{
|
some_failed = 1;
|
some_failed = 1;
|
break;
|
break;
|
}
|
}
|
if (some_failed)
|
if (some_failed)
|
{
|
{
|
for (loc = bpt->loc; loc; loc = loc->next)
|
for (loc = bpt->loc; loc; loc = loc->next)
|
if (loc->inserted)
|
if (loc->inserted)
|
remove_breakpoint (loc, mark_uninserted);
|
remove_breakpoint (loc, mark_uninserted);
|
|
|
hw_breakpoint_error = 1;
|
hw_breakpoint_error = 1;
|
fprintf_unfiltered (tmp_error_stream,
|
fprintf_unfiltered (tmp_error_stream,
|
"Could not insert hardware watchpoint %d.\n",
|
"Could not insert hardware watchpoint %d.\n",
|
bpt->number);
|
bpt->number);
|
error = -1;
|
error = -1;
|
}
|
}
|
}
|
}
|
|
|
if (error)
|
if (error)
|
{
|
{
|
/* If a hardware breakpoint or watchpoint was inserted, add a
|
/* If a hardware breakpoint or watchpoint was inserted, add a
|
message about possibly exhausted resources. */
|
message about possibly exhausted resources. */
|
if (hw_breakpoint_error)
|
if (hw_breakpoint_error)
|
{
|
{
|
fprintf_unfiltered (tmp_error_stream,
|
fprintf_unfiltered (tmp_error_stream,
|
"Could not insert hardware breakpoints:\n\
|
"Could not insert hardware breakpoints:\n\
|
You may have requested too many hardware breakpoints/watchpoints.\n");
|
You may have requested too many hardware breakpoints/watchpoints.\n");
|
}
|
}
|
target_terminal_ours_for_output ();
|
target_terminal_ours_for_output ();
|
error_stream (tmp_error_stream);
|
error_stream (tmp_error_stream);
|
}
|
}
|
|
|
do_cleanups (cleanups);
|
do_cleanups (cleanups);
|
}
|
}
|
|
|
int
|
int
|
remove_breakpoints (void)
|
remove_breakpoints (void)
|
{
|
{
|
struct bp_location *b, **bp_tmp;
|
struct bp_location *b, **bp_tmp;
|
int val = 0;
|
int val = 0;
|
|
|
ALL_BP_LOCATIONS (b, bp_tmp)
|
ALL_BP_LOCATIONS (b, bp_tmp)
|
{
|
{
|
if (b->inserted)
|
if (b->inserted)
|
val |= remove_breakpoint (b, mark_uninserted);
|
val |= remove_breakpoint (b, mark_uninserted);
|
}
|
}
|
return val;
|
return val;
|
}
|
}
|
|
|
/* Remove breakpoints of process PID. */
|
/* Remove breakpoints of process PID. */
|
|
|
int
|
int
|
remove_breakpoints_pid (int pid)
|
remove_breakpoints_pid (int pid)
|
{
|
{
|
struct bp_location *b, **b_tmp;
|
struct bp_location *b, **b_tmp;
|
int val;
|
int val;
|
struct inferior *inf = find_inferior_pid (pid);
|
struct inferior *inf = find_inferior_pid (pid);
|
|
|
ALL_BP_LOCATIONS (b, b_tmp)
|
ALL_BP_LOCATIONS (b, b_tmp)
|
{
|
{
|
if (b->pspace != inf->pspace)
|
if (b->pspace != inf->pspace)
|
continue;
|
continue;
|
|
|
if (b->inserted)
|
if (b->inserted)
|
{
|
{
|
val = remove_breakpoint (b, mark_uninserted);
|
val = remove_breakpoint (b, mark_uninserted);
|
if (val != 0)
|
if (val != 0)
|
return val;
|
return val;
|
}
|
}
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
int
|
int
|
remove_hw_watchpoints (void)
|
remove_hw_watchpoints (void)
|
{
|
{
|
struct bp_location *b, **bp_tmp;
|
struct bp_location *b, **bp_tmp;
|
int val = 0;
|
int val = 0;
|
|
|
ALL_BP_LOCATIONS (b, bp_tmp)
|
ALL_BP_LOCATIONS (b, bp_tmp)
|
{
|
{
|
if (b->inserted && b->loc_type == bp_loc_hardware_watchpoint)
|
if (b->inserted && b->loc_type == bp_loc_hardware_watchpoint)
|
val |= remove_breakpoint (b, mark_uninserted);
|
val |= remove_breakpoint (b, mark_uninserted);
|
}
|
}
|
return val;
|
return val;
|
}
|
}
|
|
|
int
|
int
|
reattach_breakpoints (int pid)
|
reattach_breakpoints (int pid)
|
{
|
{
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
struct bp_location *b, **bp_tmp;
|
struct bp_location *b, **bp_tmp;
|
int val;
|
int val;
|
struct ui_file *tmp_error_stream = mem_fileopen ();
|
struct ui_file *tmp_error_stream = mem_fileopen ();
|
int dummy1 = 0, dummy2 = 0;
|
int dummy1 = 0, dummy2 = 0;
|
struct inferior *inf;
|
struct inferior *inf;
|
struct thread_info *tp;
|
struct thread_info *tp;
|
|
|
tp = any_live_thread_of_process (pid);
|
tp = any_live_thread_of_process (pid);
|
if (tp == NULL)
|
if (tp == NULL)
|
return 1;
|
return 1;
|
|
|
inf = find_inferior_pid (pid);
|
inf = find_inferior_pid (pid);
|
old_chain = save_inferior_ptid ();
|
old_chain = save_inferior_ptid ();
|
|
|
inferior_ptid = tp->ptid;
|
inferior_ptid = tp->ptid;
|
|
|
make_cleanup_ui_file_delete (tmp_error_stream);
|
make_cleanup_ui_file_delete (tmp_error_stream);
|
|
|
ALL_BP_LOCATIONS (b, bp_tmp)
|
ALL_BP_LOCATIONS (b, bp_tmp)
|
{
|
{
|
if (b->pspace != inf->pspace)
|
if (b->pspace != inf->pspace)
|
continue;
|
continue;
|
|
|
if (b->inserted)
|
if (b->inserted)
|
{
|
{
|
b->inserted = 0;
|
b->inserted = 0;
|
val = insert_bp_location (b, tmp_error_stream,
|
val = insert_bp_location (b, tmp_error_stream,
|
&dummy1, &dummy2);
|
&dummy1, &dummy2);
|
if (val != 0)
|
if (val != 0)
|
{
|
{
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
return val;
|
return val;
|
}
|
}
|
}
|
}
|
}
|
}
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static int internal_breakpoint_number = -1;
|
static int internal_breakpoint_number = -1;
|
|
|
static struct breakpoint *
|
static struct breakpoint *
|
create_internal_breakpoint (struct gdbarch *gdbarch,
|
create_internal_breakpoint (struct gdbarch *gdbarch,
|
CORE_ADDR address, enum bptype type)
|
CORE_ADDR address, enum bptype type)
|
{
|
{
|
struct symtab_and_line sal;
|
struct symtab_and_line sal;
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
init_sal (&sal); /* initialize to zeroes */
|
init_sal (&sal); /* initialize to zeroes */
|
|
|
sal.pc = address;
|
sal.pc = address;
|
sal.section = find_pc_overlay (sal.pc);
|
sal.section = find_pc_overlay (sal.pc);
|
sal.pspace = current_program_space;
|
sal.pspace = current_program_space;
|
|
|
b = set_raw_breakpoint (gdbarch, sal, type);
|
b = set_raw_breakpoint (gdbarch, sal, type);
|
b->number = internal_breakpoint_number--;
|
b->number = internal_breakpoint_number--;
|
b->disposition = disp_donttouch;
|
b->disposition = disp_donttouch;
|
|
|
return b;
|
return b;
|
}
|
}
|
|
|
static void
|
static void
|
create_overlay_event_breakpoint (char *func_name)
|
create_overlay_event_breakpoint (char *func_name)
|
{
|
{
|
struct objfile *objfile;
|
struct objfile *objfile;
|
|
|
ALL_OBJFILES (objfile)
|
ALL_OBJFILES (objfile)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
struct minimal_symbol *m;
|
struct minimal_symbol *m;
|
|
|
m = lookup_minimal_symbol_text (func_name, objfile);
|
m = lookup_minimal_symbol_text (func_name, objfile);
|
if (m == NULL)
|
if (m == NULL)
|
continue;
|
continue;
|
|
|
b = create_internal_breakpoint (get_objfile_arch (objfile),
|
b = create_internal_breakpoint (get_objfile_arch (objfile),
|
SYMBOL_VALUE_ADDRESS (m),
|
SYMBOL_VALUE_ADDRESS (m),
|
bp_overlay_event);
|
bp_overlay_event);
|
b->addr_string = xstrdup (func_name);
|
b->addr_string = xstrdup (func_name);
|
|
|
if (overlay_debugging == ovly_auto)
|
if (overlay_debugging == ovly_auto)
|
{
|
{
|
b->enable_state = bp_enabled;
|
b->enable_state = bp_enabled;
|
overlay_events_enabled = 1;
|
overlay_events_enabled = 1;
|
}
|
}
|
else
|
else
|
{
|
{
|
b->enable_state = bp_disabled;
|
b->enable_state = bp_disabled;
|
overlay_events_enabled = 0;
|
overlay_events_enabled = 0;
|
}
|
}
|
}
|
}
|
update_global_location_list (1);
|
update_global_location_list (1);
|
}
|
}
|
|
|
static void
|
static void
|
create_longjmp_master_breakpoint (char *func_name)
|
create_longjmp_master_breakpoint (char *func_name)
|
{
|
{
|
struct program_space *pspace;
|
struct program_space *pspace;
|
struct objfile *objfile;
|
struct objfile *objfile;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
|
|
old_chain = save_current_program_space ();
|
old_chain = save_current_program_space ();
|
|
|
ALL_PSPACES (pspace)
|
ALL_PSPACES (pspace)
|
ALL_OBJFILES (objfile)
|
ALL_OBJFILES (objfile)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
struct minimal_symbol *m;
|
struct minimal_symbol *m;
|
|
|
if (!gdbarch_get_longjmp_target_p (get_objfile_arch (objfile)))
|
if (!gdbarch_get_longjmp_target_p (get_objfile_arch (objfile)))
|
continue;
|
continue;
|
|
|
set_current_program_space (pspace);
|
set_current_program_space (pspace);
|
|
|
m = lookup_minimal_symbol_text (func_name, objfile);
|
m = lookup_minimal_symbol_text (func_name, objfile);
|
if (m == NULL)
|
if (m == NULL)
|
continue;
|
continue;
|
|
|
b = create_internal_breakpoint (get_objfile_arch (objfile),
|
b = create_internal_breakpoint (get_objfile_arch (objfile),
|
SYMBOL_VALUE_ADDRESS (m),
|
SYMBOL_VALUE_ADDRESS (m),
|
bp_longjmp_master);
|
bp_longjmp_master);
|
b->addr_string = xstrdup (func_name);
|
b->addr_string = xstrdup (func_name);
|
b->enable_state = bp_disabled;
|
b->enable_state = bp_disabled;
|
}
|
}
|
update_global_location_list (1);
|
update_global_location_list (1);
|
|
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
}
|
}
|
|
|
void
|
void
|
update_breakpoints_after_exec (void)
|
update_breakpoints_after_exec (void)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
struct breakpoint *temp;
|
struct breakpoint *temp;
|
struct bp_location *bploc, **bplocp_tmp;
|
struct bp_location *bploc, **bplocp_tmp;
|
|
|
/* We're about to delete breakpoints from GDB's lists. If the
|
/* We're about to delete breakpoints from GDB's lists. If the
|
INSERTED flag is true, GDB will try to lift the breakpoints by
|
INSERTED flag is true, GDB will try to lift the breakpoints by
|
writing the breakpoints' "shadow contents" back into memory. The
|
writing the breakpoints' "shadow contents" back into memory. The
|
"shadow contents" are NOT valid after an exec, so GDB should not
|
"shadow contents" are NOT valid after an exec, so GDB should not
|
do that. Instead, the target is responsible from marking
|
do that. Instead, the target is responsible from marking
|
breakpoints out as soon as it detects an exec. We don't do that
|
breakpoints out as soon as it detects an exec. We don't do that
|
here instead, because there may be other attempts to delete
|
here instead, because there may be other attempts to delete
|
breakpoints after detecting an exec and before reaching here. */
|
breakpoints after detecting an exec and before reaching here. */
|
ALL_BP_LOCATIONS (bploc, bplocp_tmp)
|
ALL_BP_LOCATIONS (bploc, bplocp_tmp)
|
if (bploc->pspace == current_program_space)
|
if (bploc->pspace == current_program_space)
|
gdb_assert (!bploc->inserted);
|
gdb_assert (!bploc->inserted);
|
|
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
{
|
{
|
if (b->pspace != current_program_space)
|
if (b->pspace != current_program_space)
|
continue;
|
continue;
|
|
|
/* Solib breakpoints must be explicitly reset after an exec(). */
|
/* Solib breakpoints must be explicitly reset after an exec(). */
|
if (b->type == bp_shlib_event)
|
if (b->type == bp_shlib_event)
|
{
|
{
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
continue;
|
continue;
|
}
|
}
|
|
|
/* JIT breakpoints must be explicitly reset after an exec(). */
|
/* JIT breakpoints must be explicitly reset after an exec(). */
|
if (b->type == bp_jit_event)
|
if (b->type == bp_jit_event)
|
{
|
{
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Thread event breakpoints must be set anew after an exec(),
|
/* Thread event breakpoints must be set anew after an exec(),
|
as must overlay event and longjmp master breakpoints. */
|
as must overlay event and longjmp master breakpoints. */
|
if (b->type == bp_thread_event || b->type == bp_overlay_event
|
if (b->type == bp_thread_event || b->type == bp_overlay_event
|
|| b->type == bp_longjmp_master)
|
|| b->type == bp_longjmp_master)
|
{
|
{
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Step-resume breakpoints are meaningless after an exec(). */
|
/* Step-resume breakpoints are meaningless after an exec(). */
|
if (b->type == bp_step_resume)
|
if (b->type == bp_step_resume)
|
{
|
{
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Longjmp and longjmp-resume breakpoints are also meaningless
|
/* Longjmp and longjmp-resume breakpoints are also meaningless
|
after an exec. */
|
after an exec. */
|
if (b->type == bp_longjmp || b->type == bp_longjmp_resume)
|
if (b->type == bp_longjmp || b->type == bp_longjmp_resume)
|
{
|
{
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
continue;
|
continue;
|
}
|
}
|
|
|
if (b->type == bp_catchpoint)
|
if (b->type == bp_catchpoint)
|
{
|
{
|
/* For now, none of the bp_catchpoint breakpoints need to
|
/* For now, none of the bp_catchpoint breakpoints need to
|
do anything at this point. In the future, if some of
|
do anything at this point. In the future, if some of
|
the catchpoints need to something, we will need to add
|
the catchpoints need to something, we will need to add
|
a new method, and call this method from here. */
|
a new method, and call this method from here. */
|
continue;
|
continue;
|
}
|
}
|
|
|
/* bp_finish is a special case. The only way we ought to be able
|
/* bp_finish is a special case. The only way we ought to be able
|
to see one of these when an exec() has happened, is if the user
|
to see one of these when an exec() has happened, is if the user
|
caught a vfork, and then said "finish". Ordinarily a finish just
|
caught a vfork, and then said "finish". Ordinarily a finish just
|
carries them to the call-site of the current callee, by setting
|
carries them to the call-site of the current callee, by setting
|
a temporary bp there and resuming. But in this case, the finish
|
a temporary bp there and resuming. But in this case, the finish
|
will carry them entirely through the vfork & exec.
|
will carry them entirely through the vfork & exec.
|
|
|
We don't want to allow a bp_finish to remain inserted now. But
|
We don't want to allow a bp_finish to remain inserted now. But
|
we can't safely delete it, 'cause finish_command has a handle to
|
we can't safely delete it, 'cause finish_command has a handle to
|
the bp on a bpstat, and will later want to delete it. There's a
|
the bp on a bpstat, and will later want to delete it. There's a
|
chance (and I've seen it happen) that if we delete the bp_finish
|
chance (and I've seen it happen) that if we delete the bp_finish
|
here, that its storage will get reused by the time finish_command
|
here, that its storage will get reused by the time finish_command
|
gets 'round to deleting the "use to be a bp_finish" breakpoint.
|
gets 'round to deleting the "use to be a bp_finish" breakpoint.
|
We really must allow finish_command to delete a bp_finish.
|
We really must allow finish_command to delete a bp_finish.
|
|
|
In the absense of a general solution for the "how do we know
|
In the absense of a general solution for the "how do we know
|
it's safe to delete something others may have handles to?"
|
it's safe to delete something others may have handles to?"
|
problem, what we'll do here is just uninsert the bp_finish, and
|
problem, what we'll do here is just uninsert the bp_finish, and
|
let finish_command delete it.
|
let finish_command delete it.
|
|
|
(We know the bp_finish is "doomed" in the sense that it's
|
(We know the bp_finish is "doomed" in the sense that it's
|
momentary, and will be deleted as soon as finish_command sees
|
momentary, and will be deleted as soon as finish_command sees
|
the inferior stopped. So it doesn't matter that the bp's
|
the inferior stopped. So it doesn't matter that the bp's
|
address is probably bogus in the new a.out, unlike e.g., the
|
address is probably bogus in the new a.out, unlike e.g., the
|
solib breakpoints.) */
|
solib breakpoints.) */
|
|
|
if (b->type == bp_finish)
|
if (b->type == bp_finish)
|
{
|
{
|
continue;
|
continue;
|
}
|
}
|
|
|
/* Without a symbolic address, we have little hope of the
|
/* Without a symbolic address, we have little hope of the
|
pre-exec() address meaning the same thing in the post-exec()
|
pre-exec() address meaning the same thing in the post-exec()
|
a.out. */
|
a.out. */
|
if (b->addr_string == NULL)
|
if (b->addr_string == NULL)
|
{
|
{
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
continue;
|
continue;
|
}
|
}
|
}
|
}
|
/* FIXME what about longjmp breakpoints? Re-create them here? */
|
/* FIXME what about longjmp breakpoints? Re-create them here? */
|
create_overlay_event_breakpoint ("_ovly_debug_event");
|
create_overlay_event_breakpoint ("_ovly_debug_event");
|
create_longjmp_master_breakpoint ("longjmp");
|
create_longjmp_master_breakpoint ("longjmp");
|
create_longjmp_master_breakpoint ("_longjmp");
|
create_longjmp_master_breakpoint ("_longjmp");
|
create_longjmp_master_breakpoint ("siglongjmp");
|
create_longjmp_master_breakpoint ("siglongjmp");
|
create_longjmp_master_breakpoint ("_siglongjmp");
|
create_longjmp_master_breakpoint ("_siglongjmp");
|
}
|
}
|
|
|
int
|
int
|
detach_breakpoints (int pid)
|
detach_breakpoints (int pid)
|
{
|
{
|
struct bp_location *b, **bp_tmp;
|
struct bp_location *b, **bp_tmp;
|
int val = 0;
|
int val = 0;
|
struct cleanup *old_chain = save_inferior_ptid ();
|
struct cleanup *old_chain = save_inferior_ptid ();
|
struct inferior *inf = current_inferior ();
|
struct inferior *inf = current_inferior ();
|
|
|
if (pid == PIDGET (inferior_ptid))
|
if (pid == PIDGET (inferior_ptid))
|
error (_("Cannot detach breakpoints of inferior_ptid"));
|
error (_("Cannot detach breakpoints of inferior_ptid"));
|
|
|
/* Set inferior_ptid; remove_breakpoint_1 uses this global. */
|
/* Set inferior_ptid; remove_breakpoint_1 uses this global. */
|
inferior_ptid = pid_to_ptid (pid);
|
inferior_ptid = pid_to_ptid (pid);
|
ALL_BP_LOCATIONS (b, bp_tmp)
|
ALL_BP_LOCATIONS (b, bp_tmp)
|
{
|
{
|
if (b->pspace != inf->pspace)
|
if (b->pspace != inf->pspace)
|
continue;
|
continue;
|
|
|
if (b->inserted)
|
if (b->inserted)
|
val |= remove_breakpoint_1 (b, mark_inserted);
|
val |= remove_breakpoint_1 (b, mark_inserted);
|
}
|
}
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
return val;
|
return val;
|
}
|
}
|
|
|
/* Remove the breakpoint location B from the current address space.
|
/* Remove the breakpoint location B from the current address space.
|
Note that this is used to detach breakpoints from a child fork.
|
Note that this is used to detach breakpoints from a child fork.
|
When we get here, the child isn't in the inferior list, and neither
|
When we get here, the child isn't in the inferior list, and neither
|
do we have objects to represent its address space --- we should
|
do we have objects to represent its address space --- we should
|
*not* look at b->pspace->aspace here. */
|
*not* look at b->pspace->aspace here. */
|
|
|
static int
|
static int
|
remove_breakpoint_1 (struct bp_location *b, insertion_state_t is)
|
remove_breakpoint_1 (struct bp_location *b, insertion_state_t is)
|
{
|
{
|
int val;
|
int val;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
|
|
if (b->owner->enable_state == bp_permanent)
|
if (b->owner->enable_state == bp_permanent)
|
/* Permanent breakpoints cannot be inserted or removed. */
|
/* Permanent breakpoints cannot be inserted or removed. */
|
return 0;
|
return 0;
|
|
|
/* The type of none suggests that owner is actually deleted.
|
/* The type of none suggests that owner is actually deleted.
|
This should not ever happen. */
|
This should not ever happen. */
|
gdb_assert (b->owner->type != bp_none);
|
gdb_assert (b->owner->type != bp_none);
|
|
|
if (b->loc_type == bp_loc_software_breakpoint
|
if (b->loc_type == bp_loc_software_breakpoint
|
|| b->loc_type == bp_loc_hardware_breakpoint)
|
|| b->loc_type == bp_loc_hardware_breakpoint)
|
{
|
{
|
/* "Normal" instruction breakpoint: either the standard
|
/* "Normal" instruction breakpoint: either the standard
|
trap-instruction bp (bp_breakpoint), or a
|
trap-instruction bp (bp_breakpoint), or a
|
bp_hardware_breakpoint. */
|
bp_hardware_breakpoint. */
|
|
|
/* First check to see if we have to handle an overlay. */
|
/* First check to see if we have to handle an overlay. */
|
if (overlay_debugging == ovly_off
|
if (overlay_debugging == ovly_off
|
|| b->section == NULL
|
|| b->section == NULL
|
|| !(section_is_overlay (b->section)))
|
|| !(section_is_overlay (b->section)))
|
{
|
{
|
/* No overlay handling: just remove the breakpoint. */
|
/* No overlay handling: just remove the breakpoint. */
|
|
|
if (b->loc_type == bp_loc_hardware_breakpoint)
|
if (b->loc_type == bp_loc_hardware_breakpoint)
|
val = target_remove_hw_breakpoint (b->gdbarch, &b->target_info);
|
val = target_remove_hw_breakpoint (b->gdbarch, &b->target_info);
|
else
|
else
|
val = target_remove_breakpoint (b->gdbarch, &b->target_info);
|
val = target_remove_breakpoint (b->gdbarch, &b->target_info);
|
}
|
}
|
else
|
else
|
{
|
{
|
/* This breakpoint is in an overlay section.
|
/* This breakpoint is in an overlay section.
|
Did we set a breakpoint at the LMA? */
|
Did we set a breakpoint at the LMA? */
|
if (!overlay_events_enabled)
|
if (!overlay_events_enabled)
|
{
|
{
|
/* Yes -- overlay event support is not active, so we
|
/* Yes -- overlay event support is not active, so we
|
should have set a breakpoint at the LMA. Remove it.
|
should have set a breakpoint at the LMA. Remove it.
|
*/
|
*/
|
/* Ignore any failures: if the LMA is in ROM, we will
|
/* Ignore any failures: if the LMA is in ROM, we will
|
have already warned when we failed to insert it. */
|
have already warned when we failed to insert it. */
|
if (b->loc_type == bp_loc_hardware_breakpoint)
|
if (b->loc_type == bp_loc_hardware_breakpoint)
|
target_remove_hw_breakpoint (b->gdbarch,
|
target_remove_hw_breakpoint (b->gdbarch,
|
&b->overlay_target_info);
|
&b->overlay_target_info);
|
else
|
else
|
target_remove_breakpoint (b->gdbarch,
|
target_remove_breakpoint (b->gdbarch,
|
&b->overlay_target_info);
|
&b->overlay_target_info);
|
}
|
}
|
/* Did we set a breakpoint at the VMA?
|
/* Did we set a breakpoint at the VMA?
|
If so, we will have marked the breakpoint 'inserted'. */
|
If so, we will have marked the breakpoint 'inserted'. */
|
if (b->inserted)
|
if (b->inserted)
|
{
|
{
|
/* Yes -- remove it. Previously we did not bother to
|
/* Yes -- remove it. Previously we did not bother to
|
remove the breakpoint if the section had been
|
remove the breakpoint if the section had been
|
unmapped, but let's not rely on that being safe. We
|
unmapped, but let's not rely on that being safe. We
|
don't know what the overlay manager might do. */
|
don't know what the overlay manager might do. */
|
if (b->loc_type == bp_loc_hardware_breakpoint)
|
if (b->loc_type == bp_loc_hardware_breakpoint)
|
val = target_remove_hw_breakpoint (b->gdbarch,
|
val = target_remove_hw_breakpoint (b->gdbarch,
|
&b->target_info);
|
&b->target_info);
|
|
|
/* However, we should remove *software* breakpoints only
|
/* However, we should remove *software* breakpoints only
|
if the section is still mapped, or else we overwrite
|
if the section is still mapped, or else we overwrite
|
wrong code with the saved shadow contents. */
|
wrong code with the saved shadow contents. */
|
else if (section_is_mapped (b->section))
|
else if (section_is_mapped (b->section))
|
val = target_remove_breakpoint (b->gdbarch,
|
val = target_remove_breakpoint (b->gdbarch,
|
&b->target_info);
|
&b->target_info);
|
else
|
else
|
val = 0;
|
val = 0;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* No -- not inserted, so no need to remove. No error. */
|
/* No -- not inserted, so no need to remove. No error. */
|
val = 0;
|
val = 0;
|
}
|
}
|
}
|
}
|
|
|
/* In some cases, we might not be able to remove a breakpoint
|
/* In some cases, we might not be able to remove a breakpoint
|
in a shared library that has already been removed, but we
|
in a shared library that has already been removed, but we
|
have not yet processed the shlib unload event. */
|
have not yet processed the shlib unload event. */
|
if (val && solib_name_from_address (b->pspace, b->address))
|
if (val && solib_name_from_address (b->pspace, b->address))
|
val = 0;
|
val = 0;
|
|
|
if (val)
|
if (val)
|
return val;
|
return val;
|
b->inserted = (is == mark_inserted);
|
b->inserted = (is == mark_inserted);
|
}
|
}
|
else if (b->loc_type == bp_loc_hardware_watchpoint)
|
else if (b->loc_type == bp_loc_hardware_watchpoint)
|
{
|
{
|
struct value *v;
|
struct value *v;
|
struct value *n;
|
struct value *n;
|
|
|
b->inserted = (is == mark_inserted);
|
b->inserted = (is == mark_inserted);
|
val = target_remove_watchpoint (b->address, b->length,
|
val = target_remove_watchpoint (b->address, b->length,
|
b->watchpoint_type);
|
b->watchpoint_type);
|
|
|
/* Failure to remove any of the hardware watchpoints comes here. */
|
/* Failure to remove any of the hardware watchpoints comes here. */
|
if ((is == mark_uninserted) && (b->inserted))
|
if ((is == mark_uninserted) && (b->inserted))
|
warning (_("Could not remove hardware watchpoint %d."),
|
warning (_("Could not remove hardware watchpoint %d."),
|
b->owner->number);
|
b->owner->number);
|
}
|
}
|
else if (b->owner->type == bp_catchpoint
|
else if (b->owner->type == bp_catchpoint
|
&& breakpoint_enabled (b->owner)
|
&& breakpoint_enabled (b->owner)
|
&& !b->duplicate)
|
&& !b->duplicate)
|
{
|
{
|
gdb_assert (b->owner->ops != NULL && b->owner->ops->remove != NULL);
|
gdb_assert (b->owner->ops != NULL && b->owner->ops->remove != NULL);
|
|
|
val = b->owner->ops->remove (b->owner);
|
val = b->owner->ops->remove (b->owner);
|
if (val)
|
if (val)
|
return val;
|
return val;
|
b->inserted = (is == mark_inserted);
|
b->inserted = (is == mark_inserted);
|
}
|
}
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static int
|
static int
|
remove_breakpoint (struct bp_location *b, insertion_state_t is)
|
remove_breakpoint (struct bp_location *b, insertion_state_t is)
|
{
|
{
|
int ret;
|
int ret;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
|
|
if (b->owner->enable_state == bp_permanent)
|
if (b->owner->enable_state == bp_permanent)
|
/* Permanent breakpoints cannot be inserted or removed. */
|
/* Permanent breakpoints cannot be inserted or removed. */
|
return 0;
|
return 0;
|
|
|
/* The type of none suggests that owner is actually deleted.
|
/* The type of none suggests that owner is actually deleted.
|
This should not ever happen. */
|
This should not ever happen. */
|
gdb_assert (b->owner->type != bp_none);
|
gdb_assert (b->owner->type != bp_none);
|
|
|
old_chain = save_current_space_and_thread ();
|
old_chain = save_current_space_and_thread ();
|
|
|
switch_to_program_space_and_thread (b->pspace);
|
switch_to_program_space_and_thread (b->pspace);
|
|
|
ret = remove_breakpoint_1 (b, is);
|
ret = remove_breakpoint_1 (b, is);
|
|
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
return ret;
|
return ret;
|
}
|
}
|
|
|
/* Clear the "inserted" flag in all breakpoints. */
|
/* Clear the "inserted" flag in all breakpoints. */
|
|
|
void
|
void
|
mark_breakpoints_out (void)
|
mark_breakpoints_out (void)
|
{
|
{
|
struct bp_location *bpt, **bptp_tmp;
|
struct bp_location *bpt, **bptp_tmp;
|
|
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
if (bpt->pspace == current_program_space)
|
if (bpt->pspace == current_program_space)
|
bpt->inserted = 0;
|
bpt->inserted = 0;
|
}
|
}
|
|
|
/* Clear the "inserted" flag in all breakpoints and delete any
|
/* Clear the "inserted" flag in all breakpoints and delete any
|
breakpoints which should go away between runs of the program.
|
breakpoints which should go away between runs of the program.
|
|
|
Plus other such housekeeping that has to be done for breakpoints
|
Plus other such housekeeping that has to be done for breakpoints
|
between runs.
|
between runs.
|
|
|
Note: this function gets called at the end of a run (by
|
Note: this function gets called at the end of a run (by
|
generic_mourn_inferior) and when a run begins (by
|
generic_mourn_inferior) and when a run begins (by
|
init_wait_for_inferior). */
|
init_wait_for_inferior). */
|
|
|
|
|
|
|
void
|
void
|
breakpoint_init_inferior (enum inf_context context)
|
breakpoint_init_inferior (enum inf_context context)
|
{
|
{
|
struct breakpoint *b, *temp;
|
struct breakpoint *b, *temp;
|
struct bp_location *bpt, **bptp_tmp;
|
struct bp_location *bpt, **bptp_tmp;
|
int ix;
|
int ix;
|
struct program_space *pspace = current_program_space;
|
struct program_space *pspace = current_program_space;
|
|
|
/* If breakpoint locations are shared across processes, then there's
|
/* If breakpoint locations are shared across processes, then there's
|
nothing to do. */
|
nothing to do. */
|
if (gdbarch_has_global_breakpoints (target_gdbarch))
|
if (gdbarch_has_global_breakpoints (target_gdbarch))
|
return;
|
return;
|
|
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
{
|
{
|
if (bpt->pspace == pspace
|
if (bpt->pspace == pspace
|
&& bpt->owner->enable_state != bp_permanent)
|
&& bpt->owner->enable_state != bp_permanent)
|
bpt->inserted = 0;
|
bpt->inserted = 0;
|
}
|
}
|
|
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
{
|
{
|
if (b->loc && b->loc->pspace != pspace)
|
if (b->loc && b->loc->pspace != pspace)
|
continue;
|
continue;
|
|
|
switch (b->type)
|
switch (b->type)
|
{
|
{
|
case bp_call_dummy:
|
case bp_call_dummy:
|
case bp_watchpoint_scope:
|
case bp_watchpoint_scope:
|
|
|
/* If the call dummy breakpoint is at the entry point it will
|
/* If the call dummy breakpoint is at the entry point it will
|
cause problems when the inferior is rerun, so we better
|
cause problems when the inferior is rerun, so we better
|
get rid of it.
|
get rid of it.
|
|
|
Also get rid of scope breakpoints. */
|
Also get rid of scope breakpoints. */
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
break;
|
break;
|
|
|
case bp_watchpoint:
|
case bp_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_read_watchpoint:
|
case bp_read_watchpoint:
|
case bp_access_watchpoint:
|
case bp_access_watchpoint:
|
|
|
/* Likewise for watchpoints on local expressions. */
|
/* Likewise for watchpoints on local expressions. */
|
if (b->exp_valid_block != NULL)
|
if (b->exp_valid_block != NULL)
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
else if (context == inf_starting)
|
else if (context == inf_starting)
|
{
|
{
|
/* Reset val field to force reread of starting value
|
/* Reset val field to force reread of starting value
|
in insert_breakpoints. */
|
in insert_breakpoints. */
|
if (b->val)
|
if (b->val)
|
value_free (b->val);
|
value_free (b->val);
|
b->val = NULL;
|
b->val = NULL;
|
b->val_valid = 0;
|
b->val_valid = 0;
|
}
|
}
|
break;
|
break;
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Get rid of the moribund locations. */
|
/* Get rid of the moribund locations. */
|
for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, bpt); ++ix)
|
for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, bpt); ++ix)
|
free_bp_location (bpt);
|
free_bp_location (bpt);
|
VEC_free (bp_location_p, moribund_locations);
|
VEC_free (bp_location_p, moribund_locations);
|
}
|
}
|
|
|
/* These functions concern about actual breakpoints inserted in the
|
/* These functions concern about actual breakpoints inserted in the
|
target --- to e.g. check if we need to do decr_pc adjustment or if
|
target --- to e.g. check if we need to do decr_pc adjustment or if
|
we need to hop over the bkpt --- so we check for address space
|
we need to hop over the bkpt --- so we check for address space
|
match, not program space. */
|
match, not program space. */
|
|
|
/* breakpoint_here_p (PC) returns non-zero if an enabled breakpoint
|
/* breakpoint_here_p (PC) returns non-zero if an enabled breakpoint
|
exists at PC. It returns ordinary_breakpoint_here if it's an
|
exists at PC. It returns ordinary_breakpoint_here if it's an
|
ordinary breakpoint, or permanent_breakpoint_here if it's a
|
ordinary breakpoint, or permanent_breakpoint_here if it's a
|
permanent breakpoint.
|
permanent breakpoint.
|
- When continuing from a location with an ordinary breakpoint, we
|
- When continuing from a location with an ordinary breakpoint, we
|
actually single step once before calling insert_breakpoints.
|
actually single step once before calling insert_breakpoints.
|
- When continuing from a localion with a permanent breakpoint, we
|
- When continuing from a localion with a permanent breakpoint, we
|
need to use the `SKIP_PERMANENT_BREAKPOINT' macro, provided by
|
need to use the `SKIP_PERMANENT_BREAKPOINT' macro, provided by
|
the target, to advance the PC past the breakpoint. */
|
the target, to advance the PC past the breakpoint. */
|
|
|
enum breakpoint_here
|
enum breakpoint_here
|
breakpoint_here_p (struct address_space *aspace, CORE_ADDR pc)
|
breakpoint_here_p (struct address_space *aspace, CORE_ADDR pc)
|
{
|
{
|
struct bp_location *bpt, **bptp_tmp;
|
struct bp_location *bpt, **bptp_tmp;
|
int any_breakpoint_here = 0;
|
int any_breakpoint_here = 0;
|
|
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
{
|
{
|
if (bpt->loc_type != bp_loc_software_breakpoint
|
if (bpt->loc_type != bp_loc_software_breakpoint
|
&& bpt->loc_type != bp_loc_hardware_breakpoint)
|
&& bpt->loc_type != bp_loc_hardware_breakpoint)
|
continue;
|
continue;
|
|
|
if ((breakpoint_enabled (bpt->owner)
|
if ((breakpoint_enabled (bpt->owner)
|
|| bpt->owner->enable_state == bp_permanent)
|
|| bpt->owner->enable_state == bp_permanent)
|
&& breakpoint_address_match (bpt->pspace->aspace, bpt->address,
|
&& breakpoint_address_match (bpt->pspace->aspace, bpt->address,
|
aspace, pc))
|
aspace, pc))
|
{
|
{
|
if (overlay_debugging
|
if (overlay_debugging
|
&& section_is_overlay (bpt->section)
|
&& section_is_overlay (bpt->section)
|
&& !section_is_mapped (bpt->section))
|
&& !section_is_mapped (bpt->section))
|
continue; /* unmapped overlay -- can't be a match */
|
continue; /* unmapped overlay -- can't be a match */
|
else if (bpt->owner->enable_state == bp_permanent)
|
else if (bpt->owner->enable_state == bp_permanent)
|
return permanent_breakpoint_here;
|
return permanent_breakpoint_here;
|
else
|
else
|
any_breakpoint_here = 1;
|
any_breakpoint_here = 1;
|
}
|
}
|
}
|
}
|
|
|
return any_breakpoint_here ? ordinary_breakpoint_here : 0;
|
return any_breakpoint_here ? ordinary_breakpoint_here : 0;
|
}
|
}
|
|
|
/* Return true if there's a moribund breakpoint at PC. */
|
/* Return true if there's a moribund breakpoint at PC. */
|
|
|
int
|
int
|
moribund_breakpoint_here_p (struct address_space *aspace, CORE_ADDR pc)
|
moribund_breakpoint_here_p (struct address_space *aspace, CORE_ADDR pc)
|
{
|
{
|
struct bp_location *loc;
|
struct bp_location *loc;
|
int ix;
|
int ix;
|
|
|
for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix)
|
for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix)
|
if (breakpoint_address_match (loc->pspace->aspace, loc->address,
|
if (breakpoint_address_match (loc->pspace->aspace, loc->address,
|
aspace, pc))
|
aspace, pc))
|
return 1;
|
return 1;
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Returns non-zero if there's a breakpoint inserted at PC, which is
|
/* Returns non-zero if there's a breakpoint inserted at PC, which is
|
inserted using regular breakpoint_chain / bp_location array mechanism.
|
inserted using regular breakpoint_chain / bp_location array mechanism.
|
This does not check for single-step breakpoints, which are
|
This does not check for single-step breakpoints, which are
|
inserted and removed using direct target manipulation. */
|
inserted and removed using direct target manipulation. */
|
|
|
int
|
int
|
regular_breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc)
|
regular_breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc)
|
{
|
{
|
struct bp_location *bpt, **bptp_tmp;
|
struct bp_location *bpt, **bptp_tmp;
|
|
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
{
|
{
|
if (bpt->loc_type != bp_loc_software_breakpoint
|
if (bpt->loc_type != bp_loc_software_breakpoint
|
&& bpt->loc_type != bp_loc_hardware_breakpoint)
|
&& bpt->loc_type != bp_loc_hardware_breakpoint)
|
continue;
|
continue;
|
|
|
if (bpt->inserted
|
if (bpt->inserted
|
&& breakpoint_address_match (bpt->pspace->aspace, bpt->address,
|
&& breakpoint_address_match (bpt->pspace->aspace, bpt->address,
|
aspace, pc))
|
aspace, pc))
|
{
|
{
|
if (overlay_debugging
|
if (overlay_debugging
|
&& section_is_overlay (bpt->section)
|
&& section_is_overlay (bpt->section)
|
&& !section_is_mapped (bpt->section))
|
&& !section_is_mapped (bpt->section))
|
continue; /* unmapped overlay -- can't be a match */
|
continue; /* unmapped overlay -- can't be a match */
|
else
|
else
|
return 1;
|
return 1;
|
}
|
}
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Returns non-zero iff there's either regular breakpoint
|
/* Returns non-zero iff there's either regular breakpoint
|
or a single step breakpoint inserted at PC. */
|
or a single step breakpoint inserted at PC. */
|
|
|
int
|
int
|
breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc)
|
breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc)
|
{
|
{
|
if (regular_breakpoint_inserted_here_p (aspace, pc))
|
if (regular_breakpoint_inserted_here_p (aspace, pc))
|
return 1;
|
return 1;
|
|
|
if (single_step_breakpoint_inserted_here_p (aspace, pc))
|
if (single_step_breakpoint_inserted_here_p (aspace, pc))
|
return 1;
|
return 1;
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* This function returns non-zero iff there is a software breakpoint
|
/* This function returns non-zero iff there is a software breakpoint
|
inserted at PC. */
|
inserted at PC. */
|
|
|
int
|
int
|
software_breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc)
|
software_breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc)
|
{
|
{
|
struct bp_location *bpt, **bptp_tmp;
|
struct bp_location *bpt, **bptp_tmp;
|
int any_breakpoint_here = 0;
|
int any_breakpoint_here = 0;
|
|
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
{
|
{
|
if (bpt->loc_type != bp_loc_software_breakpoint)
|
if (bpt->loc_type != bp_loc_software_breakpoint)
|
continue;
|
continue;
|
|
|
if (bpt->inserted
|
if (bpt->inserted
|
&& breakpoint_address_match (bpt->pspace->aspace, bpt->address,
|
&& breakpoint_address_match (bpt->pspace->aspace, bpt->address,
|
aspace, pc))
|
aspace, pc))
|
{
|
{
|
if (overlay_debugging
|
if (overlay_debugging
|
&& section_is_overlay (bpt->section)
|
&& section_is_overlay (bpt->section)
|
&& !section_is_mapped (bpt->section))
|
&& !section_is_mapped (bpt->section))
|
continue; /* unmapped overlay -- can't be a match */
|
continue; /* unmapped overlay -- can't be a match */
|
else
|
else
|
return 1;
|
return 1;
|
}
|
}
|
}
|
}
|
|
|
/* Also check for software single-step breakpoints. */
|
/* Also check for software single-step breakpoints. */
|
if (single_step_breakpoint_inserted_here_p (aspace, pc))
|
if (single_step_breakpoint_inserted_here_p (aspace, pc))
|
return 1;
|
return 1;
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
int
|
int
|
hardware_watchpoint_inserted_in_range (struct address_space *aspace,
|
hardware_watchpoint_inserted_in_range (struct address_space *aspace,
|
CORE_ADDR addr, ULONGEST len)
|
CORE_ADDR addr, ULONGEST len)
|
{
|
{
|
struct breakpoint *bpt;
|
struct breakpoint *bpt;
|
|
|
ALL_BREAKPOINTS (bpt)
|
ALL_BREAKPOINTS (bpt)
|
{
|
{
|
struct bp_location *loc;
|
struct bp_location *loc;
|
|
|
if (bpt->type != bp_hardware_watchpoint
|
if (bpt->type != bp_hardware_watchpoint
|
&& bpt->type != bp_access_watchpoint)
|
&& bpt->type != bp_access_watchpoint)
|
continue;
|
continue;
|
|
|
if (!breakpoint_enabled (bpt))
|
if (!breakpoint_enabled (bpt))
|
continue;
|
continue;
|
|
|
for (loc = bpt->loc; loc; loc = loc->next)
|
for (loc = bpt->loc; loc; loc = loc->next)
|
if (loc->pspace->aspace == aspace && loc->inserted)
|
if (loc->pspace->aspace == aspace && loc->inserted)
|
{
|
{
|
CORE_ADDR l, h;
|
CORE_ADDR l, h;
|
|
|
/* Check for intersection. */
|
/* Check for intersection. */
|
l = max (loc->address, addr);
|
l = max (loc->address, addr);
|
h = min (loc->address + loc->length, addr + len);
|
h = min (loc->address + loc->length, addr + len);
|
if (l < h)
|
if (l < h)
|
return 1;
|
return 1;
|
}
|
}
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* breakpoint_thread_match (PC, PTID) returns true if the breakpoint at
|
/* breakpoint_thread_match (PC, PTID) returns true if the breakpoint at
|
PC is valid for process/thread PTID. */
|
PC is valid for process/thread PTID. */
|
|
|
int
|
int
|
breakpoint_thread_match (struct address_space *aspace, CORE_ADDR pc,
|
breakpoint_thread_match (struct address_space *aspace, CORE_ADDR pc,
|
ptid_t ptid)
|
ptid_t ptid)
|
{
|
{
|
struct bp_location *bpt, **bptp_tmp;
|
struct bp_location *bpt, **bptp_tmp;
|
/* The thread and task IDs associated to PTID, computed lazily. */
|
/* The thread and task IDs associated to PTID, computed lazily. */
|
int thread = -1;
|
int thread = -1;
|
int task = 0;
|
int task = 0;
|
|
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
ALL_BP_LOCATIONS (bpt, bptp_tmp)
|
{
|
{
|
if (bpt->loc_type != bp_loc_software_breakpoint
|
if (bpt->loc_type != bp_loc_software_breakpoint
|
&& bpt->loc_type != bp_loc_hardware_breakpoint)
|
&& bpt->loc_type != bp_loc_hardware_breakpoint)
|
continue;
|
continue;
|
|
|
if (!breakpoint_enabled (bpt->owner)
|
if (!breakpoint_enabled (bpt->owner)
|
&& bpt->owner->enable_state != bp_permanent)
|
&& bpt->owner->enable_state != bp_permanent)
|
continue;
|
continue;
|
|
|
if (!breakpoint_address_match (bpt->pspace->aspace, bpt->address,
|
if (!breakpoint_address_match (bpt->pspace->aspace, bpt->address,
|
aspace, pc))
|
aspace, pc))
|
continue;
|
continue;
|
|
|
if (bpt->owner->thread != -1)
|
if (bpt->owner->thread != -1)
|
{
|
{
|
/* This is a thread-specific breakpoint. Check that ptid
|
/* This is a thread-specific breakpoint. Check that ptid
|
matches that thread. If thread hasn't been computed yet,
|
matches that thread. If thread hasn't been computed yet,
|
it is now time to do so. */
|
it is now time to do so. */
|
if (thread == -1)
|
if (thread == -1)
|
thread = pid_to_thread_id (ptid);
|
thread = pid_to_thread_id (ptid);
|
if (bpt->owner->thread != thread)
|
if (bpt->owner->thread != thread)
|
continue;
|
continue;
|
}
|
}
|
|
|
if (bpt->owner->task != 0)
|
if (bpt->owner->task != 0)
|
{
|
{
|
/* This is a task-specific breakpoint. Check that ptid
|
/* This is a task-specific breakpoint. Check that ptid
|
matches that task. If task hasn't been computed yet,
|
matches that task. If task hasn't been computed yet,
|
it is now time to do so. */
|
it is now time to do so. */
|
if (task == 0)
|
if (task == 0)
|
task = ada_get_task_number (ptid);
|
task = ada_get_task_number (ptid);
|
if (bpt->owner->task != task)
|
if (bpt->owner->task != task)
|
continue;
|
continue;
|
}
|
}
|
|
|
if (overlay_debugging
|
if (overlay_debugging
|
&& section_is_overlay (bpt->section)
|
&& section_is_overlay (bpt->section)
|
&& !section_is_mapped (bpt->section))
|
&& !section_is_mapped (bpt->section))
|
continue; /* unmapped overlay -- can't be a match */
|
continue; /* unmapped overlay -- can't be a match */
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
|
|
/* bpstat stuff. External routines' interfaces are documented
|
/* bpstat stuff. External routines' interfaces are documented
|
in breakpoint.h. */
|
in breakpoint.h. */
|
|
|
int
|
int
|
ep_is_catchpoint (struct breakpoint *ep)
|
ep_is_catchpoint (struct breakpoint *ep)
|
{
|
{
|
return (ep->type == bp_catchpoint);
|
return (ep->type == bp_catchpoint);
|
}
|
}
|
|
|
void
|
void
|
bpstat_free (bpstat bs)
|
bpstat_free (bpstat bs)
|
{
|
{
|
if (bs->old_val != NULL)
|
if (bs->old_val != NULL)
|
value_free (bs->old_val);
|
value_free (bs->old_val);
|
free_command_lines (&bs->commands);
|
free_command_lines (&bs->commands);
|
xfree (bs);
|
xfree (bs);
|
}
|
}
|
|
|
/* Clear a bpstat so that it says we are not at any breakpoint.
|
/* Clear a bpstat so that it says we are not at any breakpoint.
|
Also free any storage that is part of a bpstat. */
|
Also free any storage that is part of a bpstat. */
|
|
|
void
|
void
|
bpstat_clear (bpstat *bsp)
|
bpstat_clear (bpstat *bsp)
|
{
|
{
|
bpstat p;
|
bpstat p;
|
bpstat q;
|
bpstat q;
|
|
|
if (bsp == 0)
|
if (bsp == 0)
|
return;
|
return;
|
p = *bsp;
|
p = *bsp;
|
while (p != NULL)
|
while (p != NULL)
|
{
|
{
|
q = p->next;
|
q = p->next;
|
bpstat_free (p);
|
bpstat_free (p);
|
p = q;
|
p = q;
|
}
|
}
|
*bsp = NULL;
|
*bsp = NULL;
|
}
|
}
|
|
|
/* Return a copy of a bpstat. Like "bs1 = bs2" but all storage that
|
/* Return a copy of a bpstat. Like "bs1 = bs2" but all storage that
|
is part of the bpstat is copied as well. */
|
is part of the bpstat is copied as well. */
|
|
|
bpstat
|
bpstat
|
bpstat_copy (bpstat bs)
|
bpstat_copy (bpstat bs)
|
{
|
{
|
bpstat p = NULL;
|
bpstat p = NULL;
|
bpstat tmp;
|
bpstat tmp;
|
bpstat retval = NULL;
|
bpstat retval = NULL;
|
|
|
if (bs == NULL)
|
if (bs == NULL)
|
return bs;
|
return bs;
|
|
|
for (; bs != NULL; bs = bs->next)
|
for (; bs != NULL; bs = bs->next)
|
{
|
{
|
tmp = (bpstat) xmalloc (sizeof (*tmp));
|
tmp = (bpstat) xmalloc (sizeof (*tmp));
|
memcpy (tmp, bs, sizeof (*tmp));
|
memcpy (tmp, bs, sizeof (*tmp));
|
if (bs->commands != NULL)
|
if (bs->commands != NULL)
|
tmp->commands = copy_command_lines (bs->commands);
|
tmp->commands = copy_command_lines (bs->commands);
|
if (bs->old_val != NULL)
|
if (bs->old_val != NULL)
|
{
|
{
|
tmp->old_val = value_copy (bs->old_val);
|
tmp->old_val = value_copy (bs->old_val);
|
release_value (tmp->old_val);
|
release_value (tmp->old_val);
|
}
|
}
|
|
|
if (p == NULL)
|
if (p == NULL)
|
/* This is the first thing in the chain. */
|
/* This is the first thing in the chain. */
|
retval = tmp;
|
retval = tmp;
|
else
|
else
|
p->next = tmp;
|
p->next = tmp;
|
p = tmp;
|
p = tmp;
|
}
|
}
|
p->next = NULL;
|
p->next = NULL;
|
return retval;
|
return retval;
|
}
|
}
|
|
|
/* Find the bpstat associated with this breakpoint */
|
/* Find the bpstat associated with this breakpoint */
|
|
|
bpstat
|
bpstat
|
bpstat_find_breakpoint (bpstat bsp, struct breakpoint *breakpoint)
|
bpstat_find_breakpoint (bpstat bsp, struct breakpoint *breakpoint)
|
{
|
{
|
if (bsp == NULL)
|
if (bsp == NULL)
|
return NULL;
|
return NULL;
|
|
|
for (; bsp != NULL; bsp = bsp->next)
|
for (; bsp != NULL; bsp = bsp->next)
|
{
|
{
|
if (bsp->breakpoint_at && bsp->breakpoint_at->owner == breakpoint)
|
if (bsp->breakpoint_at && bsp->breakpoint_at->owner == breakpoint)
|
return bsp;
|
return bsp;
|
}
|
}
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Find a step_resume breakpoint associated with this bpstat.
|
/* Find a step_resume breakpoint associated with this bpstat.
|
(If there are multiple step_resume bp's on the list, this function
|
(If there are multiple step_resume bp's on the list, this function
|
will arbitrarily pick one.)
|
will arbitrarily pick one.)
|
|
|
It is an error to use this function if BPSTAT doesn't contain a
|
It is an error to use this function if BPSTAT doesn't contain a
|
step_resume breakpoint.
|
step_resume breakpoint.
|
|
|
See wait_for_inferior's use of this function. */
|
See wait_for_inferior's use of this function. */
|
struct breakpoint *
|
struct breakpoint *
|
bpstat_find_step_resume_breakpoint (bpstat bsp)
|
bpstat_find_step_resume_breakpoint (bpstat bsp)
|
{
|
{
|
int current_thread;
|
int current_thread;
|
|
|
gdb_assert (bsp != NULL);
|
gdb_assert (bsp != NULL);
|
|
|
current_thread = pid_to_thread_id (inferior_ptid);
|
current_thread = pid_to_thread_id (inferior_ptid);
|
|
|
for (; bsp != NULL; bsp = bsp->next)
|
for (; bsp != NULL; bsp = bsp->next)
|
{
|
{
|
if ((bsp->breakpoint_at != NULL)
|
if ((bsp->breakpoint_at != NULL)
|
&& (bsp->breakpoint_at->owner->type == bp_step_resume)
|
&& (bsp->breakpoint_at->owner->type == bp_step_resume)
|
&& (bsp->breakpoint_at->owner->thread == current_thread
|
&& (bsp->breakpoint_at->owner->thread == current_thread
|
|| bsp->breakpoint_at->owner->thread == -1))
|
|| bsp->breakpoint_at->owner->thread == -1))
|
return bsp->breakpoint_at->owner;
|
return bsp->breakpoint_at->owner;
|
}
|
}
|
|
|
internal_error (__FILE__, __LINE__, _("No step_resume breakpoint found."));
|
internal_error (__FILE__, __LINE__, _("No step_resume breakpoint found."));
|
}
|
}
|
|
|
|
|
/* Put in *NUM the breakpoint number of the first breakpoint we are stopped
|
/* Put in *NUM the breakpoint number of the first breakpoint we are stopped
|
at. *BSP upon return is a bpstat which points to the remaining
|
at. *BSP upon return is a bpstat which points to the remaining
|
breakpoints stopped at (but which is not guaranteed to be good for
|
breakpoints stopped at (but which is not guaranteed to be good for
|
anything but further calls to bpstat_num).
|
anything but further calls to bpstat_num).
|
Return 0 if passed a bpstat which does not indicate any breakpoints.
|
Return 0 if passed a bpstat which does not indicate any breakpoints.
|
Return -1 if stopped at a breakpoint that has been deleted since
|
Return -1 if stopped at a breakpoint that has been deleted since
|
we set it.
|
we set it.
|
Return 1 otherwise. */
|
Return 1 otherwise. */
|
|
|
int
|
int
|
bpstat_num (bpstat *bsp, int *num)
|
bpstat_num (bpstat *bsp, int *num)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
if ((*bsp) == NULL)
|
if ((*bsp) == NULL)
|
return 0; /* No more breakpoint values */
|
return 0; /* No more breakpoint values */
|
|
|
/* We assume we'll never have several bpstats that
|
/* We assume we'll never have several bpstats that
|
correspond to a single breakpoint -- otherwise,
|
correspond to a single breakpoint -- otherwise,
|
this function might return the same number more
|
this function might return the same number more
|
than once and this will look ugly. */
|
than once and this will look ugly. */
|
b = (*bsp)->breakpoint_at ? (*bsp)->breakpoint_at->owner : NULL;
|
b = (*bsp)->breakpoint_at ? (*bsp)->breakpoint_at->owner : NULL;
|
*bsp = (*bsp)->next;
|
*bsp = (*bsp)->next;
|
if (b == NULL)
|
if (b == NULL)
|
return -1; /* breakpoint that's been deleted since */
|
return -1; /* breakpoint that's been deleted since */
|
|
|
*num = b->number; /* We have its number */
|
*num = b->number; /* We have its number */
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Modify BS so that the actions will not be performed. */
|
/* Modify BS so that the actions will not be performed. */
|
|
|
void
|
void
|
bpstat_clear_actions (bpstat bs)
|
bpstat_clear_actions (bpstat bs)
|
{
|
{
|
for (; bs != NULL; bs = bs->next)
|
for (; bs != NULL; bs = bs->next)
|
{
|
{
|
free_command_lines (&bs->commands);
|
free_command_lines (&bs->commands);
|
if (bs->old_val != NULL)
|
if (bs->old_val != NULL)
|
{
|
{
|
value_free (bs->old_val);
|
value_free (bs->old_val);
|
bs->old_val = NULL;
|
bs->old_val = NULL;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Called when a command is about to proceed the inferior. */
|
/* Called when a command is about to proceed the inferior. */
|
|
|
static void
|
static void
|
breakpoint_about_to_proceed (void)
|
breakpoint_about_to_proceed (void)
|
{
|
{
|
if (!ptid_equal (inferior_ptid, null_ptid))
|
if (!ptid_equal (inferior_ptid, null_ptid))
|
{
|
{
|
struct thread_info *tp = inferior_thread ();
|
struct thread_info *tp = inferior_thread ();
|
|
|
/* Allow inferior function calls in breakpoint commands to not
|
/* Allow inferior function calls in breakpoint commands to not
|
interrupt the command list. When the call finishes
|
interrupt the command list. When the call finishes
|
successfully, the inferior will be standing at the same
|
successfully, the inferior will be standing at the same
|
breakpoint as if nothing happened. */
|
breakpoint as if nothing happened. */
|
if (tp->in_infcall)
|
if (tp->in_infcall)
|
return;
|
return;
|
}
|
}
|
|
|
breakpoint_proceeded = 1;
|
breakpoint_proceeded = 1;
|
}
|
}
|
|
|
/* Stub for cleaning up our state if we error-out of a breakpoint command */
|
/* Stub for cleaning up our state if we error-out of a breakpoint command */
|
static void
|
static void
|
cleanup_executing_breakpoints (void *ignore)
|
cleanup_executing_breakpoints (void *ignore)
|
{
|
{
|
executing_breakpoint_commands = 0;
|
executing_breakpoint_commands = 0;
|
}
|
}
|
|
|
/* Execute all the commands associated with all the breakpoints at this
|
/* Execute all the commands associated with all the breakpoints at this
|
location. Any of these commands could cause the process to proceed
|
location. Any of these commands could cause the process to proceed
|
beyond this point, etc. We look out for such changes by checking
|
beyond this point, etc. We look out for such changes by checking
|
the global "breakpoint_proceeded" after each command.
|
the global "breakpoint_proceeded" after each command.
|
|
|
Returns true if a breakpoint command resumed the inferior. In that
|
Returns true if a breakpoint command resumed the inferior. In that
|
case, it is the caller's responsibility to recall it again with the
|
case, it is the caller's responsibility to recall it again with the
|
bpstat of the current thread. */
|
bpstat of the current thread. */
|
|
|
static int
|
static int
|
bpstat_do_actions_1 (bpstat *bsp)
|
bpstat_do_actions_1 (bpstat *bsp)
|
{
|
{
|
bpstat bs;
|
bpstat bs;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
int again = 0;
|
int again = 0;
|
|
|
/* Avoid endless recursion if a `source' command is contained
|
/* Avoid endless recursion if a `source' command is contained
|
in bs->commands. */
|
in bs->commands. */
|
if (executing_breakpoint_commands)
|
if (executing_breakpoint_commands)
|
return 0;
|
return 0;
|
|
|
executing_breakpoint_commands = 1;
|
executing_breakpoint_commands = 1;
|
old_chain = make_cleanup (cleanup_executing_breakpoints, 0);
|
old_chain = make_cleanup (cleanup_executing_breakpoints, 0);
|
|
|
/* This pointer will iterate over the list of bpstat's. */
|
/* This pointer will iterate over the list of bpstat's. */
|
bs = *bsp;
|
bs = *bsp;
|
|
|
breakpoint_proceeded = 0;
|
breakpoint_proceeded = 0;
|
for (; bs != NULL; bs = bs->next)
|
for (; bs != NULL; bs = bs->next)
|
{
|
{
|
struct command_line *cmd;
|
struct command_line *cmd;
|
struct cleanup *this_cmd_tree_chain;
|
struct cleanup *this_cmd_tree_chain;
|
|
|
/* Take ownership of the BSP's command tree, if it has one.
|
/* Take ownership of the BSP's command tree, if it has one.
|
|
|
The command tree could legitimately contain commands like
|
The command tree could legitimately contain commands like
|
'step' and 'next', which call clear_proceed_status, which
|
'step' and 'next', which call clear_proceed_status, which
|
frees stop_bpstat's command tree. To make sure this doesn't
|
frees stop_bpstat's command tree. To make sure this doesn't
|
free the tree we're executing out from under us, we need to
|
free the tree we're executing out from under us, we need to
|
take ownership of the tree ourselves. Since a given bpstat's
|
take ownership of the tree ourselves. Since a given bpstat's
|
commands are only executed once, we don't need to copy it; we
|
commands are only executed once, we don't need to copy it; we
|
can clear the pointer in the bpstat, and make sure we free
|
can clear the pointer in the bpstat, and make sure we free
|
the tree when we're done. */
|
the tree when we're done. */
|
cmd = bs->commands;
|
cmd = bs->commands;
|
bs->commands = 0;
|
bs->commands = 0;
|
this_cmd_tree_chain = make_cleanup_free_command_lines (&cmd);
|
this_cmd_tree_chain = make_cleanup_free_command_lines (&cmd);
|
|
|
while (cmd != NULL)
|
while (cmd != NULL)
|
{
|
{
|
execute_control_command (cmd);
|
execute_control_command (cmd);
|
|
|
if (breakpoint_proceeded)
|
if (breakpoint_proceeded)
|
break;
|
break;
|
else
|
else
|
cmd = cmd->next;
|
cmd = cmd->next;
|
}
|
}
|
|
|
/* We can free this command tree now. */
|
/* We can free this command tree now. */
|
do_cleanups (this_cmd_tree_chain);
|
do_cleanups (this_cmd_tree_chain);
|
|
|
if (breakpoint_proceeded)
|
if (breakpoint_proceeded)
|
{
|
{
|
if (target_can_async_p ())
|
if (target_can_async_p ())
|
/* If we are in async mode, then the target might be still
|
/* If we are in async mode, then the target might be still
|
running, not stopped at any breakpoint, so nothing for
|
running, not stopped at any breakpoint, so nothing for
|
us to do here -- just return to the event loop. */
|
us to do here -- just return to the event loop. */
|
;
|
;
|
else
|
else
|
/* In sync mode, when execute_control_command returns
|
/* In sync mode, when execute_control_command returns
|
we're already standing on the next breakpoint.
|
we're already standing on the next breakpoint.
|
Breakpoint commands for that stop were not run, since
|
Breakpoint commands for that stop were not run, since
|
execute_command does not run breakpoint commands --
|
execute_command does not run breakpoint commands --
|
only command_line_handler does, but that one is not
|
only command_line_handler does, but that one is not
|
involved in execution of breakpoint commands. So, we
|
involved in execution of breakpoint commands. So, we
|
can now execute breakpoint commands. It should be
|
can now execute breakpoint commands. It should be
|
noted that making execute_command do bpstat actions is
|
noted that making execute_command do bpstat actions is
|
not an option -- in this case we'll have recursive
|
not an option -- in this case we'll have recursive
|
invocation of bpstat for each breakpoint with a
|
invocation of bpstat for each breakpoint with a
|
command, and can easily blow up GDB stack. Instead, we
|
command, and can easily blow up GDB stack. Instead, we
|
return true, which will trigger the caller to recall us
|
return true, which will trigger the caller to recall us
|
with the new stop_bpstat. */
|
with the new stop_bpstat. */
|
again = 1;
|
again = 1;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
return again;
|
return again;
|
}
|
}
|
|
|
void
|
void
|
bpstat_do_actions (void)
|
bpstat_do_actions (void)
|
{
|
{
|
/* Do any commands attached to breakpoint we are stopped at. */
|
/* Do any commands attached to breakpoint we are stopped at. */
|
while (!ptid_equal (inferior_ptid, null_ptid)
|
while (!ptid_equal (inferior_ptid, null_ptid)
|
&& target_has_execution
|
&& target_has_execution
|
&& !is_exited (inferior_ptid)
|
&& !is_exited (inferior_ptid)
|
&& !is_executing (inferior_ptid))
|
&& !is_executing (inferior_ptid))
|
/* Since in sync mode, bpstat_do_actions may resume the inferior,
|
/* Since in sync mode, bpstat_do_actions may resume the inferior,
|
and only return when it is stopped at the next breakpoint, we
|
and only return when it is stopped at the next breakpoint, we
|
keep doing breakpoint actions until it returns false to
|
keep doing breakpoint actions until it returns false to
|
indicate the inferior was not resumed. */
|
indicate the inferior was not resumed. */
|
if (!bpstat_do_actions_1 (&inferior_thread ()->stop_bpstat))
|
if (!bpstat_do_actions_1 (&inferior_thread ()->stop_bpstat))
|
break;
|
break;
|
}
|
}
|
|
|
/* Print out the (old or new) value associated with a watchpoint. */
|
/* Print out the (old or new) value associated with a watchpoint. */
|
|
|
static void
|
static void
|
watchpoint_value_print (struct value *val, struct ui_file *stream)
|
watchpoint_value_print (struct value *val, struct ui_file *stream)
|
{
|
{
|
if (val == NULL)
|
if (val == NULL)
|
fprintf_unfiltered (stream, _("<unreadable>"));
|
fprintf_unfiltered (stream, _("<unreadable>"));
|
else
|
else
|
{
|
{
|
struct value_print_options opts;
|
struct value_print_options opts;
|
get_user_print_options (&opts);
|
get_user_print_options (&opts);
|
value_print (val, stream, &opts);
|
value_print (val, stream, &opts);
|
}
|
}
|
}
|
}
|
|
|
/* This is the normal print function for a bpstat. In the future,
|
/* This is the normal print function for a bpstat. In the future,
|
much of this logic could (should?) be moved to bpstat_stop_status,
|
much of this logic could (should?) be moved to bpstat_stop_status,
|
by having it set different print_it values.
|
by having it set different print_it values.
|
|
|
Current scheme: When we stop, bpstat_print() is called. It loops
|
Current scheme: When we stop, bpstat_print() is called. It loops
|
through the bpstat list of things causing this stop, calling the
|
through the bpstat list of things causing this stop, calling the
|
print_bp_stop_message function on each one. The behavior of the
|
print_bp_stop_message function on each one. The behavior of the
|
print_bp_stop_message function depends on the print_it field of
|
print_bp_stop_message function depends on the print_it field of
|
bpstat. If such field so indicates, call this function here.
|
bpstat. If such field so indicates, call this function here.
|
|
|
Return values from this routine (ultimately used by bpstat_print()
|
Return values from this routine (ultimately used by bpstat_print()
|
and normal_stop() to decide what to do):
|
and normal_stop() to decide what to do):
|
PRINT_NOTHING: Means we already printed all we needed to print,
|
PRINT_NOTHING: Means we already printed all we needed to print,
|
don't print anything else.
|
don't print anything else.
|
PRINT_SRC_ONLY: Means we printed something, and we do *not* desire
|
PRINT_SRC_ONLY: Means we printed something, and we do *not* desire
|
that something to be followed by a location.
|
that something to be followed by a location.
|
PRINT_SCR_AND_LOC: Means we printed something, and we *do* desire
|
PRINT_SCR_AND_LOC: Means we printed something, and we *do* desire
|
that something to be followed by a location.
|
that something to be followed by a location.
|
PRINT_UNKNOWN: Means we printed nothing or we need to do some more
|
PRINT_UNKNOWN: Means we printed nothing or we need to do some more
|
analysis. */
|
analysis. */
|
|
|
static enum print_stop_action
|
static enum print_stop_action
|
print_it_typical (bpstat bs)
|
print_it_typical (bpstat bs)
|
{
|
{
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
struct breakpoint *b;
|
struct breakpoint *b;
|
const struct bp_location *bl;
|
const struct bp_location *bl;
|
struct ui_stream *stb;
|
struct ui_stream *stb;
|
int bp_temp = 0;
|
int bp_temp = 0;
|
enum print_stop_action result;
|
enum print_stop_action result;
|
|
|
/* bs->breakpoint_at can be NULL if it was a momentary breakpoint
|
/* bs->breakpoint_at can be NULL if it was a momentary breakpoint
|
which has since been deleted. */
|
which has since been deleted. */
|
if (bs->breakpoint_at == NULL)
|
if (bs->breakpoint_at == NULL)
|
return PRINT_UNKNOWN;
|
return PRINT_UNKNOWN;
|
bl = bs->breakpoint_at;
|
bl = bs->breakpoint_at;
|
b = bl->owner;
|
b = bl->owner;
|
|
|
stb = ui_out_stream_new (uiout);
|
stb = ui_out_stream_new (uiout);
|
old_chain = make_cleanup_ui_out_stream_delete (stb);
|
old_chain = make_cleanup_ui_out_stream_delete (stb);
|
|
|
switch (b->type)
|
switch (b->type)
|
{
|
{
|
case bp_breakpoint:
|
case bp_breakpoint:
|
case bp_hardware_breakpoint:
|
case bp_hardware_breakpoint:
|
bp_temp = bs->breakpoint_at->owner->disposition == disp_del;
|
bp_temp = bs->breakpoint_at->owner->disposition == disp_del;
|
if (bl->address != bl->requested_address)
|
if (bl->address != bl->requested_address)
|
breakpoint_adjustment_warning (bl->requested_address,
|
breakpoint_adjustment_warning (bl->requested_address,
|
bl->address,
|
bl->address,
|
b->number, 1);
|
b->number, 1);
|
annotate_breakpoint (b->number);
|
annotate_breakpoint (b->number);
|
if (bp_temp)
|
if (bp_temp)
|
ui_out_text (uiout, "\nTemporary breakpoint ");
|
ui_out_text (uiout, "\nTemporary breakpoint ");
|
else
|
else
|
ui_out_text (uiout, "\nBreakpoint ");
|
ui_out_text (uiout, "\nBreakpoint ");
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
{
|
{
|
ui_out_field_string (uiout, "reason",
|
ui_out_field_string (uiout, "reason",
|
async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT));
|
async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT));
|
ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
|
ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
|
}
|
}
|
ui_out_field_int (uiout, "bkptno", b->number);
|
ui_out_field_int (uiout, "bkptno", b->number);
|
ui_out_text (uiout, ", ");
|
ui_out_text (uiout, ", ");
|
result = PRINT_SRC_AND_LOC;
|
result = PRINT_SRC_AND_LOC;
|
break;
|
break;
|
|
|
case bp_shlib_event:
|
case bp_shlib_event:
|
/* Did we stop because the user set the stop_on_solib_events
|
/* Did we stop because the user set the stop_on_solib_events
|
variable? (If so, we report this as a generic, "Stopped due
|
variable? (If so, we report this as a generic, "Stopped due
|
to shlib event" message.) */
|
to shlib event" message.) */
|
printf_filtered (_("Stopped due to shared library event\n"));
|
printf_filtered (_("Stopped due to shared library event\n"));
|
result = PRINT_NOTHING;
|
result = PRINT_NOTHING;
|
break;
|
break;
|
|
|
case bp_thread_event:
|
case bp_thread_event:
|
/* Not sure how we will get here.
|
/* Not sure how we will get here.
|
GDB should not stop for these breakpoints. */
|
GDB should not stop for these breakpoints. */
|
printf_filtered (_("Thread Event Breakpoint: gdb should not stop!\n"));
|
printf_filtered (_("Thread Event Breakpoint: gdb should not stop!\n"));
|
result = PRINT_NOTHING;
|
result = PRINT_NOTHING;
|
break;
|
break;
|
|
|
case bp_overlay_event:
|
case bp_overlay_event:
|
/* By analogy with the thread event, GDB should not stop for these. */
|
/* By analogy with the thread event, GDB should not stop for these. */
|
printf_filtered (_("Overlay Event Breakpoint: gdb should not stop!\n"));
|
printf_filtered (_("Overlay Event Breakpoint: gdb should not stop!\n"));
|
result = PRINT_NOTHING;
|
result = PRINT_NOTHING;
|
break;
|
break;
|
|
|
case bp_longjmp_master:
|
case bp_longjmp_master:
|
/* These should never be enabled. */
|
/* These should never be enabled. */
|
printf_filtered (_("Longjmp Master Breakpoint: gdb should not stop!\n"));
|
printf_filtered (_("Longjmp Master Breakpoint: gdb should not stop!\n"));
|
result = PRINT_NOTHING;
|
result = PRINT_NOTHING;
|
break;
|
break;
|
|
|
case bp_watchpoint:
|
case bp_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_hardware_watchpoint:
|
annotate_watchpoint (b->number);
|
annotate_watchpoint (b->number);
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
ui_out_field_string
|
ui_out_field_string
|
(uiout, "reason",
|
(uiout, "reason",
|
async_reason_lookup (EXEC_ASYNC_WATCHPOINT_TRIGGER));
|
async_reason_lookup (EXEC_ASYNC_WATCHPOINT_TRIGGER));
|
mention (b);
|
mention (b);
|
make_cleanup_ui_out_tuple_begin_end (uiout, "value");
|
make_cleanup_ui_out_tuple_begin_end (uiout, "value");
|
ui_out_text (uiout, "\nOld value = ");
|
ui_out_text (uiout, "\nOld value = ");
|
watchpoint_value_print (bs->old_val, stb->stream);
|
watchpoint_value_print (bs->old_val, stb->stream);
|
ui_out_field_stream (uiout, "old", stb);
|
ui_out_field_stream (uiout, "old", stb);
|
ui_out_text (uiout, "\nNew value = ");
|
ui_out_text (uiout, "\nNew value = ");
|
watchpoint_value_print (b->val, stb->stream);
|
watchpoint_value_print (b->val, stb->stream);
|
ui_out_field_stream (uiout, "new", stb);
|
ui_out_field_stream (uiout, "new", stb);
|
ui_out_text (uiout, "\n");
|
ui_out_text (uiout, "\n");
|
/* More than one watchpoint may have been triggered. */
|
/* More than one watchpoint may have been triggered. */
|
result = PRINT_UNKNOWN;
|
result = PRINT_UNKNOWN;
|
break;
|
break;
|
|
|
case bp_read_watchpoint:
|
case bp_read_watchpoint:
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
ui_out_field_string
|
ui_out_field_string
|
(uiout, "reason",
|
(uiout, "reason",
|
async_reason_lookup (EXEC_ASYNC_READ_WATCHPOINT_TRIGGER));
|
async_reason_lookup (EXEC_ASYNC_READ_WATCHPOINT_TRIGGER));
|
mention (b);
|
mention (b);
|
make_cleanup_ui_out_tuple_begin_end (uiout, "value");
|
make_cleanup_ui_out_tuple_begin_end (uiout, "value");
|
ui_out_text (uiout, "\nValue = ");
|
ui_out_text (uiout, "\nValue = ");
|
watchpoint_value_print (b->val, stb->stream);
|
watchpoint_value_print (b->val, stb->stream);
|
ui_out_field_stream (uiout, "value", stb);
|
ui_out_field_stream (uiout, "value", stb);
|
ui_out_text (uiout, "\n");
|
ui_out_text (uiout, "\n");
|
result = PRINT_UNKNOWN;
|
result = PRINT_UNKNOWN;
|
break;
|
break;
|
|
|
case bp_access_watchpoint:
|
case bp_access_watchpoint:
|
if (bs->old_val != NULL)
|
if (bs->old_val != NULL)
|
{
|
{
|
annotate_watchpoint (b->number);
|
annotate_watchpoint (b->number);
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
ui_out_field_string
|
ui_out_field_string
|
(uiout, "reason",
|
(uiout, "reason",
|
async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER));
|
async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER));
|
mention (b);
|
mention (b);
|
make_cleanup_ui_out_tuple_begin_end (uiout, "value");
|
make_cleanup_ui_out_tuple_begin_end (uiout, "value");
|
ui_out_text (uiout, "\nOld value = ");
|
ui_out_text (uiout, "\nOld value = ");
|
watchpoint_value_print (bs->old_val, stb->stream);
|
watchpoint_value_print (bs->old_val, stb->stream);
|
ui_out_field_stream (uiout, "old", stb);
|
ui_out_field_stream (uiout, "old", stb);
|
ui_out_text (uiout, "\nNew value = ");
|
ui_out_text (uiout, "\nNew value = ");
|
}
|
}
|
else
|
else
|
{
|
{
|
mention (b);
|
mention (b);
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
ui_out_field_string
|
ui_out_field_string
|
(uiout, "reason",
|
(uiout, "reason",
|
async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER));
|
async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER));
|
make_cleanup_ui_out_tuple_begin_end (uiout, "value");
|
make_cleanup_ui_out_tuple_begin_end (uiout, "value");
|
ui_out_text (uiout, "\nValue = ");
|
ui_out_text (uiout, "\nValue = ");
|
}
|
}
|
watchpoint_value_print (b->val, stb->stream);
|
watchpoint_value_print (b->val, stb->stream);
|
ui_out_field_stream (uiout, "new", stb);
|
ui_out_field_stream (uiout, "new", stb);
|
ui_out_text (uiout, "\n");
|
ui_out_text (uiout, "\n");
|
result = PRINT_UNKNOWN;
|
result = PRINT_UNKNOWN;
|
break;
|
break;
|
|
|
/* Fall through, we don't deal with these types of breakpoints
|
/* Fall through, we don't deal with these types of breakpoints
|
here. */
|
here. */
|
|
|
case bp_finish:
|
case bp_finish:
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
ui_out_field_string
|
ui_out_field_string
|
(uiout, "reason",
|
(uiout, "reason",
|
async_reason_lookup (EXEC_ASYNC_FUNCTION_FINISHED));
|
async_reason_lookup (EXEC_ASYNC_FUNCTION_FINISHED));
|
result = PRINT_UNKNOWN;
|
result = PRINT_UNKNOWN;
|
break;
|
break;
|
|
|
case bp_until:
|
case bp_until:
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
ui_out_field_string
|
ui_out_field_string
|
(uiout, "reason",
|
(uiout, "reason",
|
async_reason_lookup (EXEC_ASYNC_LOCATION_REACHED));
|
async_reason_lookup (EXEC_ASYNC_LOCATION_REACHED));
|
result = PRINT_UNKNOWN;
|
result = PRINT_UNKNOWN;
|
break;
|
break;
|
|
|
case bp_none:
|
case bp_none:
|
case bp_longjmp:
|
case bp_longjmp:
|
case bp_longjmp_resume:
|
case bp_longjmp_resume:
|
case bp_step_resume:
|
case bp_step_resume:
|
case bp_watchpoint_scope:
|
case bp_watchpoint_scope:
|
case bp_call_dummy:
|
case bp_call_dummy:
|
case bp_tracepoint:
|
case bp_tracepoint:
|
case bp_fast_tracepoint:
|
case bp_fast_tracepoint:
|
case bp_jit_event:
|
case bp_jit_event:
|
default:
|
default:
|
result = PRINT_UNKNOWN;
|
result = PRINT_UNKNOWN;
|
break;
|
break;
|
}
|
}
|
|
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
return result;
|
return result;
|
}
|
}
|
|
|
/* Generic routine for printing messages indicating why we
|
/* Generic routine for printing messages indicating why we
|
stopped. The behavior of this function depends on the value
|
stopped. The behavior of this function depends on the value
|
'print_it' in the bpstat structure. Under some circumstances we
|
'print_it' in the bpstat structure. Under some circumstances we
|
may decide not to print anything here and delegate the task to
|
may decide not to print anything here and delegate the task to
|
normal_stop(). */
|
normal_stop(). */
|
|
|
static enum print_stop_action
|
static enum print_stop_action
|
print_bp_stop_message (bpstat bs)
|
print_bp_stop_message (bpstat bs)
|
{
|
{
|
switch (bs->print_it)
|
switch (bs->print_it)
|
{
|
{
|
case print_it_noop:
|
case print_it_noop:
|
/* Nothing should be printed for this bpstat entry. */
|
/* Nothing should be printed for this bpstat entry. */
|
return PRINT_UNKNOWN;
|
return PRINT_UNKNOWN;
|
break;
|
break;
|
|
|
case print_it_done:
|
case print_it_done:
|
/* We still want to print the frame, but we already printed the
|
/* We still want to print the frame, but we already printed the
|
relevant messages. */
|
relevant messages. */
|
return PRINT_SRC_AND_LOC;
|
return PRINT_SRC_AND_LOC;
|
break;
|
break;
|
|
|
case print_it_normal:
|
case print_it_normal:
|
{
|
{
|
const struct bp_location *bl = bs->breakpoint_at;
|
const struct bp_location *bl = bs->breakpoint_at;
|
struct breakpoint *b = bl ? bl->owner : NULL;
|
struct breakpoint *b = bl ? bl->owner : NULL;
|
|
|
/* Normal case. Call the breakpoint's print_it method, or
|
/* Normal case. Call the breakpoint's print_it method, or
|
print_it_typical. */
|
print_it_typical. */
|
/* FIXME: how breakpoint can ever be NULL here? */
|
/* FIXME: how breakpoint can ever be NULL here? */
|
if (b != NULL && b->ops != NULL && b->ops->print_it != NULL)
|
if (b != NULL && b->ops != NULL && b->ops->print_it != NULL)
|
return b->ops->print_it (b);
|
return b->ops->print_it (b);
|
else
|
else
|
return print_it_typical (bs);
|
return print_it_typical (bs);
|
}
|
}
|
break;
|
break;
|
|
|
default:
|
default:
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("print_bp_stop_message: unrecognized enum value"));
|
_("print_bp_stop_message: unrecognized enum value"));
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Print a message indicating what happened. This is called from
|
/* Print a message indicating what happened. This is called from
|
normal_stop(). The input to this routine is the head of the bpstat
|
normal_stop(). The input to this routine is the head of the bpstat
|
list - a list of the eventpoints that caused this stop. This
|
list - a list of the eventpoints that caused this stop. This
|
routine calls the generic print routine for printing a message
|
routine calls the generic print routine for printing a message
|
about reasons for stopping. This will print (for example) the
|
about reasons for stopping. This will print (for example) the
|
"Breakpoint n," part of the output. The return value of this
|
"Breakpoint n," part of the output. The return value of this
|
routine is one of:
|
routine is one of:
|
|
|
PRINT_UNKNOWN: Means we printed nothing
|
PRINT_UNKNOWN: Means we printed nothing
|
PRINT_SRC_AND_LOC: Means we printed something, and expect subsequent
|
PRINT_SRC_AND_LOC: Means we printed something, and expect subsequent
|
code to print the location. An example is
|
code to print the location. An example is
|
"Breakpoint 1, " which should be followed by
|
"Breakpoint 1, " which should be followed by
|
the location.
|
the location.
|
PRINT_SRC_ONLY: Means we printed something, but there is no need
|
PRINT_SRC_ONLY: Means we printed something, but there is no need
|
to also print the location part of the message.
|
to also print the location part of the message.
|
An example is the catch/throw messages, which
|
An example is the catch/throw messages, which
|
don't require a location appended to the end.
|
don't require a location appended to the end.
|
PRINT_NOTHING: We have done some printing and we don't need any
|
PRINT_NOTHING: We have done some printing and we don't need any
|
further info to be printed.*/
|
further info to be printed.*/
|
|
|
enum print_stop_action
|
enum print_stop_action
|
bpstat_print (bpstat bs)
|
bpstat_print (bpstat bs)
|
{
|
{
|
int val;
|
int val;
|
|
|
/* Maybe another breakpoint in the chain caused us to stop.
|
/* Maybe another breakpoint in the chain caused us to stop.
|
(Currently all watchpoints go on the bpstat whether hit or not.
|
(Currently all watchpoints go on the bpstat whether hit or not.
|
That probably could (should) be changed, provided care is taken
|
That probably could (should) be changed, provided care is taken
|
with respect to bpstat_explains_signal). */
|
with respect to bpstat_explains_signal). */
|
for (; bs; bs = bs->next)
|
for (; bs; bs = bs->next)
|
{
|
{
|
val = print_bp_stop_message (bs);
|
val = print_bp_stop_message (bs);
|
if (val == PRINT_SRC_ONLY
|
if (val == PRINT_SRC_ONLY
|
|| val == PRINT_SRC_AND_LOC
|
|| val == PRINT_SRC_AND_LOC
|
|| val == PRINT_NOTHING)
|
|| val == PRINT_NOTHING)
|
return val;
|
return val;
|
}
|
}
|
|
|
/* We reached the end of the chain, or we got a null BS to start
|
/* We reached the end of the chain, or we got a null BS to start
|
with and nothing was printed. */
|
with and nothing was printed. */
|
return PRINT_UNKNOWN;
|
return PRINT_UNKNOWN;
|
}
|
}
|
|
|
/* Evaluate the expression EXP and return 1 if value is zero.
|
/* Evaluate the expression EXP and return 1 if value is zero.
|
This is used inside a catch_errors to evaluate the breakpoint condition.
|
This is used inside a catch_errors to evaluate the breakpoint condition.
|
The argument is a "struct expression *" that has been cast to char * to
|
The argument is a "struct expression *" that has been cast to char * to
|
make it pass through catch_errors. */
|
make it pass through catch_errors. */
|
|
|
static int
|
static int
|
breakpoint_cond_eval (void *exp)
|
breakpoint_cond_eval (void *exp)
|
{
|
{
|
struct value *mark = value_mark ();
|
struct value *mark = value_mark ();
|
int i = !value_true (evaluate_expression ((struct expression *) exp));
|
int i = !value_true (evaluate_expression ((struct expression *) exp));
|
value_free_to_mark (mark);
|
value_free_to_mark (mark);
|
return i;
|
return i;
|
}
|
}
|
|
|
/* Allocate a new bpstat and chain it to the current one. */
|
/* Allocate a new bpstat and chain it to the current one. */
|
|
|
static bpstat
|
static bpstat
|
bpstat_alloc (const struct bp_location *bl, bpstat cbs /* Current "bs" value */ )
|
bpstat_alloc (const struct bp_location *bl, bpstat cbs /* Current "bs" value */ )
|
{
|
{
|
bpstat bs;
|
bpstat bs;
|
|
|
bs = (bpstat) xmalloc (sizeof (*bs));
|
bs = (bpstat) xmalloc (sizeof (*bs));
|
cbs->next = bs;
|
cbs->next = bs;
|
bs->breakpoint_at = bl;
|
bs->breakpoint_at = bl;
|
/* If the condition is false, etc., don't do the commands. */
|
/* If the condition is false, etc., don't do the commands. */
|
bs->commands = NULL;
|
bs->commands = NULL;
|
bs->old_val = NULL;
|
bs->old_val = NULL;
|
bs->print_it = print_it_normal;
|
bs->print_it = print_it_normal;
|
return bs;
|
return bs;
|
}
|
}
|
|
|
/* The target has stopped with waitstatus WS. Check if any hardware
|
/* The target has stopped with waitstatus WS. Check if any hardware
|
watchpoints have triggered, according to the target. */
|
watchpoints have triggered, according to the target. */
|
|
|
int
|
int
|
watchpoints_triggered (struct target_waitstatus *ws)
|
watchpoints_triggered (struct target_waitstatus *ws)
|
{
|
{
|
int stopped_by_watchpoint = target_stopped_by_watchpoint ();
|
int stopped_by_watchpoint = target_stopped_by_watchpoint ();
|
CORE_ADDR addr;
|
CORE_ADDR addr;
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
if (!stopped_by_watchpoint)
|
if (!stopped_by_watchpoint)
|
{
|
{
|
/* We were not stopped by a watchpoint. Mark all watchpoints
|
/* We were not stopped by a watchpoint. Mark all watchpoints
|
as not triggered. */
|
as not triggered. */
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->type == bp_hardware_watchpoint
|
if (b->type == bp_hardware_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_access_watchpoint)
|
|| b->type == bp_access_watchpoint)
|
b->watchpoint_triggered = watch_triggered_no;
|
b->watchpoint_triggered = watch_triggered_no;
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
if (!target_stopped_data_address (¤t_target, &addr))
|
if (!target_stopped_data_address (¤t_target, &addr))
|
{
|
{
|
/* We were stopped by a watchpoint, but we don't know where.
|
/* We were stopped by a watchpoint, but we don't know where.
|
Mark all watchpoints as unknown. */
|
Mark all watchpoints as unknown. */
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->type == bp_hardware_watchpoint
|
if (b->type == bp_hardware_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_access_watchpoint)
|
|| b->type == bp_access_watchpoint)
|
b->watchpoint_triggered = watch_triggered_unknown;
|
b->watchpoint_triggered = watch_triggered_unknown;
|
|
|
return stopped_by_watchpoint;
|
return stopped_by_watchpoint;
|
}
|
}
|
|
|
/* The target could report the data address. Mark watchpoints
|
/* The target could report the data address. Mark watchpoints
|
affected by this data address as triggered, and all others as not
|
affected by this data address as triggered, and all others as not
|
triggered. */
|
triggered. */
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->type == bp_hardware_watchpoint
|
if (b->type == bp_hardware_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_access_watchpoint)
|
|| b->type == bp_access_watchpoint)
|
{
|
{
|
struct bp_location *loc;
|
struct bp_location *loc;
|
struct value *v;
|
struct value *v;
|
|
|
b->watchpoint_triggered = watch_triggered_no;
|
b->watchpoint_triggered = watch_triggered_no;
|
for (loc = b->loc; loc; loc = loc->next)
|
for (loc = b->loc; loc; loc = loc->next)
|
/* Exact match not required. Within range is
|
/* Exact match not required. Within range is
|
sufficient. */
|
sufficient. */
|
if (target_watchpoint_addr_within_range (¤t_target,
|
if (target_watchpoint_addr_within_range (¤t_target,
|
addr, loc->address,
|
addr, loc->address,
|
loc->length))
|
loc->length))
|
{
|
{
|
b->watchpoint_triggered = watch_triggered_yes;
|
b->watchpoint_triggered = watch_triggered_yes;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Possible return values for watchpoint_check (this can't be an enum
|
/* Possible return values for watchpoint_check (this can't be an enum
|
because of check_errors). */
|
because of check_errors). */
|
/* The watchpoint has been deleted. */
|
/* The watchpoint has been deleted. */
|
#define WP_DELETED 1
|
#define WP_DELETED 1
|
/* The value has changed. */
|
/* The value has changed. */
|
#define WP_VALUE_CHANGED 2
|
#define WP_VALUE_CHANGED 2
|
/* The value has not changed. */
|
/* The value has not changed. */
|
#define WP_VALUE_NOT_CHANGED 3
|
#define WP_VALUE_NOT_CHANGED 3
|
|
|
#define BP_TEMPFLAG 1
|
#define BP_TEMPFLAG 1
|
#define BP_HARDWAREFLAG 2
|
#define BP_HARDWAREFLAG 2
|
|
|
/* Evaluate watchpoint condition expression and check if its value changed.
|
/* Evaluate watchpoint condition expression and check if its value changed.
|
|
|
P should be a pointer to struct bpstat, but is defined as a void *
|
P should be a pointer to struct bpstat, but is defined as a void *
|
in order for this function to be usable with catch_errors. */
|
in order for this function to be usable with catch_errors. */
|
|
|
static int
|
static int
|
watchpoint_check (void *p)
|
watchpoint_check (void *p)
|
{
|
{
|
bpstat bs = (bpstat) p;
|
bpstat bs = (bpstat) p;
|
struct breakpoint *b;
|
struct breakpoint *b;
|
struct frame_info *fr;
|
struct frame_info *fr;
|
int within_current_scope;
|
int within_current_scope;
|
|
|
b = bs->breakpoint_at->owner;
|
b = bs->breakpoint_at->owner;
|
|
|
/* If this is a local watchpoint, we only want to check if the
|
/* If this is a local watchpoint, we only want to check if the
|
watchpoint frame is in scope if the current thread is the thread
|
watchpoint frame is in scope if the current thread is the thread
|
that was used to create the watchpoint. */
|
that was used to create the watchpoint. */
|
if (!watchpoint_in_thread_scope (b))
|
if (!watchpoint_in_thread_scope (b))
|
return WP_VALUE_NOT_CHANGED;
|
return WP_VALUE_NOT_CHANGED;
|
|
|
if (b->exp_valid_block == NULL)
|
if (b->exp_valid_block == NULL)
|
within_current_scope = 1;
|
within_current_scope = 1;
|
else
|
else
|
{
|
{
|
struct frame_info *frame = get_current_frame ();
|
struct frame_info *frame = get_current_frame ();
|
struct gdbarch *frame_arch = get_frame_arch (frame);
|
struct gdbarch *frame_arch = get_frame_arch (frame);
|
CORE_ADDR frame_pc = get_frame_pc (frame);
|
CORE_ADDR frame_pc = get_frame_pc (frame);
|
|
|
/* in_function_epilogue_p() returns a non-zero value if we're still
|
/* in_function_epilogue_p() returns a non-zero value if we're still
|
in the function but the stack frame has already been invalidated.
|
in the function but the stack frame has already been invalidated.
|
Since we can't rely on the values of local variables after the
|
Since we can't rely on the values of local variables after the
|
stack has been destroyed, we are treating the watchpoint in that
|
stack has been destroyed, we are treating the watchpoint in that
|
state as `not changed' without further checking. Don't mark
|
state as `not changed' without further checking. Don't mark
|
watchpoints as changed if the current frame is in an epilogue -
|
watchpoints as changed if the current frame is in an epilogue -
|
even if they are in some other frame, our view of the stack
|
even if they are in some other frame, our view of the stack
|
is likely to be wrong and frame_find_by_id could error out. */
|
is likely to be wrong and frame_find_by_id could error out. */
|
if (gdbarch_in_function_epilogue_p (frame_arch, frame_pc))
|
if (gdbarch_in_function_epilogue_p (frame_arch, frame_pc))
|
return WP_VALUE_NOT_CHANGED;
|
return WP_VALUE_NOT_CHANGED;
|
|
|
fr = frame_find_by_id (b->watchpoint_frame);
|
fr = frame_find_by_id (b->watchpoint_frame);
|
within_current_scope = (fr != NULL);
|
within_current_scope = (fr != NULL);
|
|
|
/* If we've gotten confused in the unwinder, we might have
|
/* If we've gotten confused in the unwinder, we might have
|
returned a frame that can't describe this variable. */
|
returned a frame that can't describe this variable. */
|
if (within_current_scope)
|
if (within_current_scope)
|
{
|
{
|
struct symbol *function;
|
struct symbol *function;
|
|
|
function = get_frame_function (fr);
|
function = get_frame_function (fr);
|
if (function == NULL
|
if (function == NULL
|
|| !contained_in (b->exp_valid_block,
|
|| !contained_in (b->exp_valid_block,
|
SYMBOL_BLOCK_VALUE (function)))
|
SYMBOL_BLOCK_VALUE (function)))
|
within_current_scope = 0;
|
within_current_scope = 0;
|
}
|
}
|
|
|
if (within_current_scope)
|
if (within_current_scope)
|
/* If we end up stopping, the current frame will get selected
|
/* If we end up stopping, the current frame will get selected
|
in normal_stop. So this call to select_frame won't affect
|
in normal_stop. So this call to select_frame won't affect
|
the user. */
|
the user. */
|
select_frame (fr);
|
select_frame (fr);
|
}
|
}
|
|
|
if (within_current_scope)
|
if (within_current_scope)
|
{
|
{
|
/* We use value_{,free_to_}mark because it could be a
|
/* We use value_{,free_to_}mark because it could be a
|
*long* time before we return to the command level and
|
*long* time before we return to the command level and
|
call free_all_values. We can't call free_all_values because
|
call free_all_values. We can't call free_all_values because
|
we might be in the middle of evaluating a function call. */
|
we might be in the middle of evaluating a function call. */
|
|
|
struct value *mark = value_mark ();
|
struct value *mark = value_mark ();
|
struct value *new_val;
|
struct value *new_val;
|
|
|
fetch_watchpoint_value (b->exp, &new_val, NULL, NULL);
|
fetch_watchpoint_value (b->exp, &new_val, NULL, NULL);
|
|
|
/* We use value_equal_contents instead of value_equal because the latter
|
/* We use value_equal_contents instead of value_equal because the latter
|
coerces an array to a pointer, thus comparing just the address of the
|
coerces an array to a pointer, thus comparing just the address of the
|
array instead of its contents. This is not what we want. */
|
array instead of its contents. This is not what we want. */
|
if ((b->val != NULL) != (new_val != NULL)
|
if ((b->val != NULL) != (new_val != NULL)
|
|| (b->val != NULL && !value_equal_contents (b->val, new_val)))
|
|| (b->val != NULL && !value_equal_contents (b->val, new_val)))
|
{
|
{
|
if (new_val != NULL)
|
if (new_val != NULL)
|
{
|
{
|
release_value (new_val);
|
release_value (new_val);
|
value_free_to_mark (mark);
|
value_free_to_mark (mark);
|
}
|
}
|
bs->old_val = b->val;
|
bs->old_val = b->val;
|
b->val = new_val;
|
b->val = new_val;
|
b->val_valid = 1;
|
b->val_valid = 1;
|
/* We will stop here */
|
/* We will stop here */
|
return WP_VALUE_CHANGED;
|
return WP_VALUE_CHANGED;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Nothing changed, don't do anything. */
|
/* Nothing changed, don't do anything. */
|
value_free_to_mark (mark);
|
value_free_to_mark (mark);
|
/* We won't stop here */
|
/* We won't stop here */
|
return WP_VALUE_NOT_CHANGED;
|
return WP_VALUE_NOT_CHANGED;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
/* This seems like the only logical thing to do because
|
/* This seems like the only logical thing to do because
|
if we temporarily ignored the watchpoint, then when
|
if we temporarily ignored the watchpoint, then when
|
we reenter the block in which it is valid it contains
|
we reenter the block in which it is valid it contains
|
garbage (in the case of a function, it may have two
|
garbage (in the case of a function, it may have two
|
garbage values, one before and one after the prologue).
|
garbage values, one before and one after the prologue).
|
So we can't even detect the first assignment to it and
|
So we can't even detect the first assignment to it and
|
watch after that (since the garbage may or may not equal
|
watch after that (since the garbage may or may not equal
|
the first value assigned). */
|
the first value assigned). */
|
/* We print all the stop information in print_it_typical(), but
|
/* We print all the stop information in print_it_typical(), but
|
in this case, by the time we call print_it_typical() this bp
|
in this case, by the time we call print_it_typical() this bp
|
will be deleted already. So we have no choice but print the
|
will be deleted already. So we have no choice but print the
|
information here. */
|
information here. */
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
ui_out_field_string
|
ui_out_field_string
|
(uiout, "reason", async_reason_lookup (EXEC_ASYNC_WATCHPOINT_SCOPE));
|
(uiout, "reason", async_reason_lookup (EXEC_ASYNC_WATCHPOINT_SCOPE));
|
ui_out_text (uiout, "\nWatchpoint ");
|
ui_out_text (uiout, "\nWatchpoint ");
|
ui_out_field_int (uiout, "wpnum", b->number);
|
ui_out_field_int (uiout, "wpnum", b->number);
|
ui_out_text (uiout, " deleted because the program has left the block in\n\
|
ui_out_text (uiout, " deleted because the program has left the block in\n\
|
which its expression is valid.\n");
|
which its expression is valid.\n");
|
|
|
if (b->related_breakpoint)
|
if (b->related_breakpoint)
|
b->related_breakpoint->disposition = disp_del_at_next_stop;
|
b->related_breakpoint->disposition = disp_del_at_next_stop;
|
b->disposition = disp_del_at_next_stop;
|
b->disposition = disp_del_at_next_stop;
|
|
|
return WP_DELETED;
|
return WP_DELETED;
|
}
|
}
|
}
|
}
|
|
|
/* Return true if it looks like target has stopped due to hitting
|
/* Return true if it looks like target has stopped due to hitting
|
breakpoint location BL. This function does not check if we
|
breakpoint location BL. This function does not check if we
|
should stop, only if BL explains the stop. */
|
should stop, only if BL explains the stop. */
|
static int
|
static int
|
bpstat_check_location (const struct bp_location *bl,
|
bpstat_check_location (const struct bp_location *bl,
|
struct address_space *aspace, CORE_ADDR bp_addr)
|
struct address_space *aspace, CORE_ADDR bp_addr)
|
{
|
{
|
struct breakpoint *b = bl->owner;
|
struct breakpoint *b = bl->owner;
|
|
|
/* By definition, the inferior does not report stops at
|
/* By definition, the inferior does not report stops at
|
tracepoints. */
|
tracepoints. */
|
if (tracepoint_type (b))
|
if (tracepoint_type (b))
|
return 0;
|
return 0;
|
|
|
if (b->type != bp_watchpoint
|
if (b->type != bp_watchpoint
|
&& b->type != bp_hardware_watchpoint
|
&& b->type != bp_hardware_watchpoint
|
&& b->type != bp_read_watchpoint
|
&& b->type != bp_read_watchpoint
|
&& b->type != bp_access_watchpoint
|
&& b->type != bp_access_watchpoint
|
&& b->type != bp_hardware_breakpoint
|
&& b->type != bp_hardware_breakpoint
|
&& b->type != bp_catchpoint) /* a non-watchpoint bp */
|
&& b->type != bp_catchpoint) /* a non-watchpoint bp */
|
{
|
{
|
if (!breakpoint_address_match (bl->pspace->aspace, bl->address,
|
if (!breakpoint_address_match (bl->pspace->aspace, bl->address,
|
aspace, bp_addr))
|
aspace, bp_addr))
|
return 0;
|
return 0;
|
if (overlay_debugging /* unmapped overlay section */
|
if (overlay_debugging /* unmapped overlay section */
|
&& section_is_overlay (bl->section)
|
&& section_is_overlay (bl->section)
|
&& !section_is_mapped (bl->section))
|
&& !section_is_mapped (bl->section))
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Continuable hardware watchpoints are treated as non-existent if the
|
/* Continuable hardware watchpoints are treated as non-existent if the
|
reason we stopped wasn't a hardware watchpoint (we didn't stop on
|
reason we stopped wasn't a hardware watchpoint (we didn't stop on
|
some data address). Otherwise gdb won't stop on a break instruction
|
some data address). Otherwise gdb won't stop on a break instruction
|
in the code (not from a breakpoint) when a hardware watchpoint has
|
in the code (not from a breakpoint) when a hardware watchpoint has
|
been defined. Also skip watchpoints which we know did not trigger
|
been defined. Also skip watchpoints which we know did not trigger
|
(did not match the data address). */
|
(did not match the data address). */
|
|
|
if ((b->type == bp_hardware_watchpoint
|
if ((b->type == bp_hardware_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_access_watchpoint)
|
|| b->type == bp_access_watchpoint)
|
&& b->watchpoint_triggered == watch_triggered_no)
|
&& b->watchpoint_triggered == watch_triggered_no)
|
return 0;
|
return 0;
|
|
|
if (b->type == bp_hardware_breakpoint)
|
if (b->type == bp_hardware_breakpoint)
|
{
|
{
|
if (bl->address != bp_addr)
|
if (bl->address != bp_addr)
|
return 0;
|
return 0;
|
if (overlay_debugging /* unmapped overlay section */
|
if (overlay_debugging /* unmapped overlay section */
|
&& section_is_overlay (bl->section)
|
&& section_is_overlay (bl->section)
|
&& !section_is_mapped (bl->section))
|
&& !section_is_mapped (bl->section))
|
return 0;
|
return 0;
|
}
|
}
|
|
|
if (b->type == bp_catchpoint)
|
if (b->type == bp_catchpoint)
|
{
|
{
|
gdb_assert (b->ops != NULL && b->ops->breakpoint_hit != NULL);
|
gdb_assert (b->ops != NULL && b->ops->breakpoint_hit != NULL);
|
if (!b->ops->breakpoint_hit (b))
|
if (!b->ops->breakpoint_hit (b))
|
return 0;
|
return 0;
|
}
|
}
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* If BS refers to a watchpoint, determine if the watched values
|
/* If BS refers to a watchpoint, determine if the watched values
|
has actually changed, and we should stop. If not, set BS->stop
|
has actually changed, and we should stop. If not, set BS->stop
|
to 0. */
|
to 0. */
|
static void
|
static void
|
bpstat_check_watchpoint (bpstat bs)
|
bpstat_check_watchpoint (bpstat bs)
|
{
|
{
|
const struct bp_location *bl = bs->breakpoint_at;
|
const struct bp_location *bl = bs->breakpoint_at;
|
struct breakpoint *b = bl->owner;
|
struct breakpoint *b = bl->owner;
|
|
|
if (b->type == bp_watchpoint
|
if (b->type == bp_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_access_watchpoint
|
|| b->type == bp_access_watchpoint
|
|| b->type == bp_hardware_watchpoint)
|
|| b->type == bp_hardware_watchpoint)
|
{
|
{
|
CORE_ADDR addr;
|
CORE_ADDR addr;
|
struct value *v;
|
struct value *v;
|
int must_check_value = 0;
|
int must_check_value = 0;
|
|
|
if (b->type == bp_watchpoint)
|
if (b->type == bp_watchpoint)
|
/* For a software watchpoint, we must always check the
|
/* For a software watchpoint, we must always check the
|
watched value. */
|
watched value. */
|
must_check_value = 1;
|
must_check_value = 1;
|
else if (b->watchpoint_triggered == watch_triggered_yes)
|
else if (b->watchpoint_triggered == watch_triggered_yes)
|
/* We have a hardware watchpoint (read, write, or access)
|
/* We have a hardware watchpoint (read, write, or access)
|
and the target earlier reported an address watched by
|
and the target earlier reported an address watched by
|
this watchpoint. */
|
this watchpoint. */
|
must_check_value = 1;
|
must_check_value = 1;
|
else if (b->watchpoint_triggered == watch_triggered_unknown
|
else if (b->watchpoint_triggered == watch_triggered_unknown
|
&& b->type == bp_hardware_watchpoint)
|
&& b->type == bp_hardware_watchpoint)
|
/* We were stopped by a hardware watchpoint, but the target could
|
/* We were stopped by a hardware watchpoint, but the target could
|
not report the data address. We must check the watchpoint's
|
not report the data address. We must check the watchpoint's
|
value. Access and read watchpoints are out of luck; without
|
value. Access and read watchpoints are out of luck; without
|
a data address, we can't figure it out. */
|
a data address, we can't figure it out. */
|
must_check_value = 1;
|
must_check_value = 1;
|
|
|
if (must_check_value)
|
if (must_check_value)
|
{
|
{
|
char *message = xstrprintf ("Error evaluating expression for watchpoint %d\n",
|
char *message = xstrprintf ("Error evaluating expression for watchpoint %d\n",
|
b->number);
|
b->number);
|
struct cleanup *cleanups = make_cleanup (xfree, message);
|
struct cleanup *cleanups = make_cleanup (xfree, message);
|
int e = catch_errors (watchpoint_check, bs, message,
|
int e = catch_errors (watchpoint_check, bs, message,
|
RETURN_MASK_ALL);
|
RETURN_MASK_ALL);
|
do_cleanups (cleanups);
|
do_cleanups (cleanups);
|
switch (e)
|
switch (e)
|
{
|
{
|
case WP_DELETED:
|
case WP_DELETED:
|
/* We've already printed what needs to be printed. */
|
/* We've already printed what needs to be printed. */
|
bs->print_it = print_it_done;
|
bs->print_it = print_it_done;
|
/* Stop. */
|
/* Stop. */
|
break;
|
break;
|
case WP_VALUE_CHANGED:
|
case WP_VALUE_CHANGED:
|
if (b->type == bp_read_watchpoint)
|
if (b->type == bp_read_watchpoint)
|
{
|
{
|
/* Don't stop: read watchpoints shouldn't fire if
|
/* Don't stop: read watchpoints shouldn't fire if
|
the value has changed. This is for targets
|
the value has changed. This is for targets
|
which cannot set read-only watchpoints. */
|
which cannot set read-only watchpoints. */
|
bs->print_it = print_it_noop;
|
bs->print_it = print_it_noop;
|
bs->stop = 0;
|
bs->stop = 0;
|
}
|
}
|
break;
|
break;
|
case WP_VALUE_NOT_CHANGED:
|
case WP_VALUE_NOT_CHANGED:
|
if (b->type == bp_hardware_watchpoint
|
if (b->type == bp_hardware_watchpoint
|
|| b->type == bp_watchpoint)
|
|| b->type == bp_watchpoint)
|
{
|
{
|
/* Don't stop: write watchpoints shouldn't fire if
|
/* Don't stop: write watchpoints shouldn't fire if
|
the value hasn't changed. */
|
the value hasn't changed. */
|
bs->print_it = print_it_noop;
|
bs->print_it = print_it_noop;
|
bs->stop = 0;
|
bs->stop = 0;
|
}
|
}
|
/* Stop. */
|
/* Stop. */
|
break;
|
break;
|
default:
|
default:
|
/* Can't happen. */
|
/* Can't happen. */
|
case 0:
|
case 0:
|
/* Error from catch_errors. */
|
/* Error from catch_errors. */
|
printf_filtered (_("Watchpoint %d deleted.\n"), b->number);
|
printf_filtered (_("Watchpoint %d deleted.\n"), b->number);
|
if (b->related_breakpoint)
|
if (b->related_breakpoint)
|
b->related_breakpoint->disposition = disp_del_at_next_stop;
|
b->related_breakpoint->disposition = disp_del_at_next_stop;
|
b->disposition = disp_del_at_next_stop;
|
b->disposition = disp_del_at_next_stop;
|
/* We've already printed what needs to be printed. */
|
/* We've already printed what needs to be printed. */
|
bs->print_it = print_it_done;
|
bs->print_it = print_it_done;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
else /* must_check_value == 0 */
|
else /* must_check_value == 0 */
|
{
|
{
|
/* This is a case where some watchpoint(s) triggered, but
|
/* This is a case where some watchpoint(s) triggered, but
|
not at the address of this watchpoint, or else no
|
not at the address of this watchpoint, or else no
|
watchpoint triggered after all. So don't print
|
watchpoint triggered after all. So don't print
|
anything for this watchpoint. */
|
anything for this watchpoint. */
|
bs->print_it = print_it_noop;
|
bs->print_it = print_it_noop;
|
bs->stop = 0;
|
bs->stop = 0;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Check conditions (condition proper, frame, thread and ignore count)
|
/* Check conditions (condition proper, frame, thread and ignore count)
|
of breakpoint referred to by BS. If we should not stop for this
|
of breakpoint referred to by BS. If we should not stop for this
|
breakpoint, set BS->stop to 0. */
|
breakpoint, set BS->stop to 0. */
|
static void
|
static void
|
bpstat_check_breakpoint_conditions (bpstat bs, ptid_t ptid)
|
bpstat_check_breakpoint_conditions (bpstat bs, ptid_t ptid)
|
{
|
{
|
int thread_id = pid_to_thread_id (ptid);
|
int thread_id = pid_to_thread_id (ptid);
|
const struct bp_location *bl = bs->breakpoint_at;
|
const struct bp_location *bl = bs->breakpoint_at;
|
struct breakpoint *b = bl->owner;
|
struct breakpoint *b = bl->owner;
|
|
|
if (frame_id_p (b->frame_id)
|
if (frame_id_p (b->frame_id)
|
&& !frame_id_eq (b->frame_id, get_stack_frame_id (get_current_frame ())))
|
&& !frame_id_eq (b->frame_id, get_stack_frame_id (get_current_frame ())))
|
bs->stop = 0;
|
bs->stop = 0;
|
else if (bs->stop)
|
else if (bs->stop)
|
{
|
{
|
int value_is_zero = 0;
|
int value_is_zero = 0;
|
|
|
/* If this is a scope breakpoint, mark the associated
|
/* If this is a scope breakpoint, mark the associated
|
watchpoint as triggered so that we will handle the
|
watchpoint as triggered so that we will handle the
|
out-of-scope event. We'll get to the watchpoint next
|
out-of-scope event. We'll get to the watchpoint next
|
iteration. */
|
iteration. */
|
if (b->type == bp_watchpoint_scope)
|
if (b->type == bp_watchpoint_scope)
|
b->related_breakpoint->watchpoint_triggered = watch_triggered_yes;
|
b->related_breakpoint->watchpoint_triggered = watch_triggered_yes;
|
|
|
if (bl->cond && bl->owner->disposition != disp_del_at_next_stop)
|
if (bl->cond && bl->owner->disposition != disp_del_at_next_stop)
|
{
|
{
|
/* We use value_mark and value_free_to_mark because it could
|
/* We use value_mark and value_free_to_mark because it could
|
be a long time before we return to the command level and
|
be a long time before we return to the command level and
|
call free_all_values. We can't call free_all_values
|
call free_all_values. We can't call free_all_values
|
because we might be in the middle of evaluating a
|
because we might be in the middle of evaluating a
|
function call. */
|
function call. */
|
struct value *mark = value_mark ();
|
struct value *mark = value_mark ();
|
|
|
/* Need to select the frame, with all that implies so that
|
/* Need to select the frame, with all that implies so that
|
the conditions will have the right context. Because we
|
the conditions will have the right context. Because we
|
use the frame, we will not see an inlined function's
|
use the frame, we will not see an inlined function's
|
variables when we arrive at a breakpoint at the start
|
variables when we arrive at a breakpoint at the start
|
of the inlined function; the current frame will be the
|
of the inlined function; the current frame will be the
|
call site. */
|
call site. */
|
select_frame (get_current_frame ());
|
select_frame (get_current_frame ());
|
value_is_zero
|
value_is_zero
|
= catch_errors (breakpoint_cond_eval, (bl->cond),
|
= catch_errors (breakpoint_cond_eval, (bl->cond),
|
"Error in testing breakpoint condition:\n",
|
"Error in testing breakpoint condition:\n",
|
RETURN_MASK_ALL);
|
RETURN_MASK_ALL);
|
/* FIXME-someday, should give breakpoint # */
|
/* FIXME-someday, should give breakpoint # */
|
value_free_to_mark (mark);
|
value_free_to_mark (mark);
|
}
|
}
|
if (bl->cond && value_is_zero)
|
if (bl->cond && value_is_zero)
|
{
|
{
|
bs->stop = 0;
|
bs->stop = 0;
|
}
|
}
|
else if (b->thread != -1 && b->thread != thread_id)
|
else if (b->thread != -1 && b->thread != thread_id)
|
{
|
{
|
bs->stop = 0;
|
bs->stop = 0;
|
}
|
}
|
else if (b->ignore_count > 0)
|
else if (b->ignore_count > 0)
|
{
|
{
|
b->ignore_count--;
|
b->ignore_count--;
|
annotate_ignore_count_change ();
|
annotate_ignore_count_change ();
|
bs->stop = 0;
|
bs->stop = 0;
|
/* Increase the hit count even though we don't
|
/* Increase the hit count even though we don't
|
stop. */
|
stop. */
|
++(b->hit_count);
|
++(b->hit_count);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Get a bpstat associated with having just stopped at address
|
/* Get a bpstat associated with having just stopped at address
|
BP_ADDR in thread PTID.
|
BP_ADDR in thread PTID.
|
|
|
Determine whether we stopped at a breakpoint, etc, or whether we
|
Determine whether we stopped at a breakpoint, etc, or whether we
|
don't understand this stop. Result is a chain of bpstat's such that:
|
don't understand this stop. Result is a chain of bpstat's such that:
|
|
|
if we don't understand the stop, the result is a null pointer.
|
if we don't understand the stop, the result is a null pointer.
|
|
|
if we understand why we stopped, the result is not null.
|
if we understand why we stopped, the result is not null.
|
|
|
Each element of the chain refers to a particular breakpoint or
|
Each element of the chain refers to a particular breakpoint or
|
watchpoint at which we have stopped. (We may have stopped for
|
watchpoint at which we have stopped. (We may have stopped for
|
several reasons concurrently.)
|
several reasons concurrently.)
|
|
|
Each element of the chain has valid next, breakpoint_at,
|
Each element of the chain has valid next, breakpoint_at,
|
commands, FIXME??? fields. */
|
commands, FIXME??? fields. */
|
|
|
bpstat
|
bpstat
|
bpstat_stop_status (struct address_space *aspace,
|
bpstat_stop_status (struct address_space *aspace,
|
CORE_ADDR bp_addr, ptid_t ptid)
|
CORE_ADDR bp_addr, ptid_t ptid)
|
{
|
{
|
struct breakpoint *b = NULL;
|
struct breakpoint *b = NULL;
|
struct bp_location *bl, **blp_tmp;
|
struct bp_location *bl, **blp_tmp;
|
struct bp_location *loc;
|
struct bp_location *loc;
|
/* Root of the chain of bpstat's */
|
/* Root of the chain of bpstat's */
|
struct bpstats root_bs[1];
|
struct bpstats root_bs[1];
|
/* Pointer to the last thing in the chain currently. */
|
/* Pointer to the last thing in the chain currently. */
|
bpstat bs = root_bs;
|
bpstat bs = root_bs;
|
int ix;
|
int ix;
|
int need_remove_insert;
|
int need_remove_insert;
|
|
|
/* ALL_BP_LOCATIONS iteration would break across
|
/* ALL_BP_LOCATIONS iteration would break across
|
update_global_location_list possibly executed by
|
update_global_location_list possibly executed by
|
bpstat_check_breakpoint_conditions's inferior call. */
|
bpstat_check_breakpoint_conditions's inferior call. */
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
{
|
{
|
if (!breakpoint_enabled (b) && b->enable_state != bp_permanent)
|
if (!breakpoint_enabled (b) && b->enable_state != bp_permanent)
|
continue;
|
continue;
|
|
|
for (bl = b->loc; bl != NULL; bl = bl->next)
|
for (bl = b->loc; bl != NULL; bl = bl->next)
|
{
|
{
|
/* For hardware watchpoints, we look only at the first location.
|
/* For hardware watchpoints, we look only at the first location.
|
The watchpoint_check function will work on entire expression,
|
The watchpoint_check function will work on entire expression,
|
not the individual locations. For read watchopints, the
|
not the individual locations. For read watchopints, the
|
watchpoints_triggered function have checked all locations
|
watchpoints_triggered function have checked all locations
|
already. */
|
already. */
|
if (b->type == bp_hardware_watchpoint && bl != b->loc)
|
if (b->type == bp_hardware_watchpoint && bl != b->loc)
|
break;
|
break;
|
|
|
if (bl->shlib_disabled)
|
if (bl->shlib_disabled)
|
continue;
|
continue;
|
|
|
if (!bpstat_check_location (bl, aspace, bp_addr))
|
if (!bpstat_check_location (bl, aspace, bp_addr))
|
continue;
|
continue;
|
|
|
/* Come here if it's a watchpoint, or if the break address matches */
|
/* Come here if it's a watchpoint, or if the break address matches */
|
|
|
bs = bpstat_alloc (bl, bs); /* Alloc a bpstat to explain stop */
|
bs = bpstat_alloc (bl, bs); /* Alloc a bpstat to explain stop */
|
|
|
/* Assume we stop. Should we find watchpoint that is not actually
|
/* Assume we stop. Should we find watchpoint that is not actually
|
triggered, or if condition of breakpoint is false, we'll reset
|
triggered, or if condition of breakpoint is false, we'll reset
|
'stop' to 0. */
|
'stop' to 0. */
|
bs->stop = 1;
|
bs->stop = 1;
|
bs->print = 1;
|
bs->print = 1;
|
|
|
bpstat_check_watchpoint (bs);
|
bpstat_check_watchpoint (bs);
|
if (!bs->stop)
|
if (!bs->stop)
|
continue;
|
continue;
|
|
|
if (b->type == bp_thread_event || b->type == bp_overlay_event
|
if (b->type == bp_thread_event || b->type == bp_overlay_event
|
|| b->type == bp_longjmp_master)
|
|| b->type == bp_longjmp_master)
|
/* We do not stop for these. */
|
/* We do not stop for these. */
|
bs->stop = 0;
|
bs->stop = 0;
|
else
|
else
|
bpstat_check_breakpoint_conditions (bs, ptid);
|
bpstat_check_breakpoint_conditions (bs, ptid);
|
|
|
if (bs->stop)
|
if (bs->stop)
|
{
|
{
|
++(b->hit_count);
|
++(b->hit_count);
|
|
|
/* We will stop here */
|
/* We will stop here */
|
if (b->disposition == disp_disable)
|
if (b->disposition == disp_disable)
|
{
|
{
|
if (b->enable_state != bp_permanent)
|
if (b->enable_state != bp_permanent)
|
b->enable_state = bp_disabled;
|
b->enable_state = bp_disabled;
|
update_global_location_list (0);
|
update_global_location_list (0);
|
}
|
}
|
if (b->silent)
|
if (b->silent)
|
bs->print = 0;
|
bs->print = 0;
|
bs->commands = b->commands;
|
bs->commands = b->commands;
|
if (bs->commands
|
if (bs->commands
|
&& (strcmp ("silent", bs->commands->line) == 0
|
&& (strcmp ("silent", bs->commands->line) == 0
|
|| (xdb_commands && strcmp ("Q",
|
|| (xdb_commands && strcmp ("Q",
|
bs->commands->line) == 0)))
|
bs->commands->line) == 0)))
|
{
|
{
|
bs->commands = bs->commands->next;
|
bs->commands = bs->commands->next;
|
bs->print = 0;
|
bs->print = 0;
|
}
|
}
|
bs->commands = copy_command_lines (bs->commands);
|
bs->commands = copy_command_lines (bs->commands);
|
}
|
}
|
|
|
/* Print nothing for this entry if we dont stop or dont print. */
|
/* Print nothing for this entry if we dont stop or dont print. */
|
if (bs->stop == 0 || bs->print == 0)
|
if (bs->stop == 0 || bs->print == 0)
|
bs->print_it = print_it_noop;
|
bs->print_it = print_it_noop;
|
}
|
}
|
}
|
}
|
|
|
for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix)
|
for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix)
|
{
|
{
|
if (breakpoint_address_match (loc->pspace->aspace, loc->address,
|
if (breakpoint_address_match (loc->pspace->aspace, loc->address,
|
aspace, bp_addr))
|
aspace, bp_addr))
|
{
|
{
|
bs = bpstat_alloc (loc, bs);
|
bs = bpstat_alloc (loc, bs);
|
/* For hits of moribund locations, we should just proceed. */
|
/* For hits of moribund locations, we should just proceed. */
|
bs->stop = 0;
|
bs->stop = 0;
|
bs->print = 0;
|
bs->print = 0;
|
bs->print_it = print_it_noop;
|
bs->print_it = print_it_noop;
|
}
|
}
|
}
|
}
|
|
|
bs->next = NULL; /* Terminate the chain */
|
bs->next = NULL; /* Terminate the chain */
|
|
|
/* If we aren't stopping, the value of some hardware watchpoint may
|
/* If we aren't stopping, the value of some hardware watchpoint may
|
not have changed, but the intermediate memory locations we are
|
not have changed, but the intermediate memory locations we are
|
watching may have. Don't bother if we're stopping; this will get
|
watching may have. Don't bother if we're stopping; this will get
|
done later. */
|
done later. */
|
for (bs = root_bs->next; bs != NULL; bs = bs->next)
|
for (bs = root_bs->next; bs != NULL; bs = bs->next)
|
if (bs->stop)
|
if (bs->stop)
|
break;
|
break;
|
|
|
need_remove_insert = 0;
|
need_remove_insert = 0;
|
if (bs == NULL)
|
if (bs == NULL)
|
for (bs = root_bs->next; bs != NULL; bs = bs->next)
|
for (bs = root_bs->next; bs != NULL; bs = bs->next)
|
if (!bs->stop
|
if (!bs->stop
|
&& bs->breakpoint_at->owner
|
&& bs->breakpoint_at->owner
|
&& is_hardware_watchpoint (bs->breakpoint_at->owner))
|
&& is_hardware_watchpoint (bs->breakpoint_at->owner))
|
{
|
{
|
update_watchpoint (bs->breakpoint_at->owner, 0 /* don't reparse. */);
|
update_watchpoint (bs->breakpoint_at->owner, 0 /* don't reparse. */);
|
/* Updating watchpoints invalidates bs->breakpoint_at.
|
/* Updating watchpoints invalidates bs->breakpoint_at.
|
Prevent further code from trying to use it. */
|
Prevent further code from trying to use it. */
|
bs->breakpoint_at = NULL;
|
bs->breakpoint_at = NULL;
|
need_remove_insert = 1;
|
need_remove_insert = 1;
|
}
|
}
|
|
|
if (need_remove_insert)
|
if (need_remove_insert)
|
update_global_location_list (1);
|
update_global_location_list (1);
|
|
|
return root_bs->next;
|
return root_bs->next;
|
}
|
}
|
|
|
/* Tell what to do about this bpstat. */
|
/* Tell what to do about this bpstat. */
|
struct bpstat_what
|
struct bpstat_what
|
bpstat_what (bpstat bs)
|
bpstat_what (bpstat bs)
|
{
|
{
|
/* Classify each bpstat as one of the following. */
|
/* Classify each bpstat as one of the following. */
|
enum class
|
enum class
|
{
|
{
|
/* This bpstat element has no effect on the main_action. */
|
/* This bpstat element has no effect on the main_action. */
|
no_effect = 0,
|
no_effect = 0,
|
|
|
/* There was a watchpoint, stop but don't print. */
|
/* There was a watchpoint, stop but don't print. */
|
wp_silent,
|
wp_silent,
|
|
|
/* There was a watchpoint, stop and print. */
|
/* There was a watchpoint, stop and print. */
|
wp_noisy,
|
wp_noisy,
|
|
|
/* There was a breakpoint but we're not stopping. */
|
/* There was a breakpoint but we're not stopping. */
|
bp_nostop,
|
bp_nostop,
|
|
|
/* There was a breakpoint, stop but don't print. */
|
/* There was a breakpoint, stop but don't print. */
|
bp_silent,
|
bp_silent,
|
|
|
/* There was a breakpoint, stop and print. */
|
/* There was a breakpoint, stop and print. */
|
bp_noisy,
|
bp_noisy,
|
|
|
/* We hit the longjmp breakpoint. */
|
/* We hit the longjmp breakpoint. */
|
long_jump,
|
long_jump,
|
|
|
/* We hit the longjmp_resume breakpoint. */
|
/* We hit the longjmp_resume breakpoint. */
|
long_resume,
|
long_resume,
|
|
|
/* We hit the step_resume breakpoint. */
|
/* We hit the step_resume breakpoint. */
|
step_resume,
|
step_resume,
|
|
|
/* We hit the shared library event breakpoint. */
|
/* We hit the shared library event breakpoint. */
|
shlib_event,
|
shlib_event,
|
|
|
/* We hit the jit event breakpoint. */
|
/* We hit the jit event breakpoint. */
|
jit_event,
|
jit_event,
|
|
|
/* This is just used to count how many enums there are. */
|
/* This is just used to count how many enums there are. */
|
class_last
|
class_last
|
};
|
};
|
|
|
/* Here is the table which drives this routine. So that we can
|
/* Here is the table which drives this routine. So that we can
|
format it pretty, we define some abbreviations for the
|
format it pretty, we define some abbreviations for the
|
enum bpstat_what codes. */
|
enum bpstat_what codes. */
|
#define kc BPSTAT_WHAT_KEEP_CHECKING
|
#define kc BPSTAT_WHAT_KEEP_CHECKING
|
#define ss BPSTAT_WHAT_STOP_SILENT
|
#define ss BPSTAT_WHAT_STOP_SILENT
|
#define sn BPSTAT_WHAT_STOP_NOISY
|
#define sn BPSTAT_WHAT_STOP_NOISY
|
#define sgl BPSTAT_WHAT_SINGLE
|
#define sgl BPSTAT_WHAT_SINGLE
|
#define slr BPSTAT_WHAT_SET_LONGJMP_RESUME
|
#define slr BPSTAT_WHAT_SET_LONGJMP_RESUME
|
#define clr BPSTAT_WHAT_CLEAR_LONGJMP_RESUME
|
#define clr BPSTAT_WHAT_CLEAR_LONGJMP_RESUME
|
#define sr BPSTAT_WHAT_STEP_RESUME
|
#define sr BPSTAT_WHAT_STEP_RESUME
|
#define shl BPSTAT_WHAT_CHECK_SHLIBS
|
#define shl BPSTAT_WHAT_CHECK_SHLIBS
|
#define jit BPSTAT_WHAT_CHECK_JIT
|
#define jit BPSTAT_WHAT_CHECK_JIT
|
|
|
/* "Can't happen." Might want to print an error message.
|
/* "Can't happen." Might want to print an error message.
|
abort() is not out of the question, but chances are GDB is just
|
abort() is not out of the question, but chances are GDB is just
|
a bit confused, not unusable. */
|
a bit confused, not unusable. */
|
#define err BPSTAT_WHAT_STOP_NOISY
|
#define err BPSTAT_WHAT_STOP_NOISY
|
|
|
/* Given an old action and a class, come up with a new action. */
|
/* Given an old action and a class, come up with a new action. */
|
/* One interesting property of this table is that wp_silent is the same
|
/* One interesting property of this table is that wp_silent is the same
|
as bp_silent and wp_noisy is the same as bp_noisy. That is because
|
as bp_silent and wp_noisy is the same as bp_noisy. That is because
|
after stopping, the check for whether to step over a breakpoint
|
after stopping, the check for whether to step over a breakpoint
|
(BPSTAT_WHAT_SINGLE type stuff) is handled in proceed() without
|
(BPSTAT_WHAT_SINGLE type stuff) is handled in proceed() without
|
reference to how we stopped. We retain separate wp_silent and
|
reference to how we stopped. We retain separate wp_silent and
|
bp_silent codes in case we want to change that someday.
|
bp_silent codes in case we want to change that someday.
|
|
|
Another possibly interesting property of this table is that
|
Another possibly interesting property of this table is that
|
there's a partial ordering, priority-like, of the actions. Once
|
there's a partial ordering, priority-like, of the actions. Once
|
you've decided that some action is appropriate, you'll never go
|
you've decided that some action is appropriate, you'll never go
|
back and decide something of a lower priority is better. The
|
back and decide something of a lower priority is better. The
|
ordering is:
|
ordering is:
|
|
|
kc < jit clr sgl shl slr sn sr ss
|
kc < jit clr sgl shl slr sn sr ss
|
sgl < jit shl slr sn sr ss
|
sgl < jit shl slr sn sr ss
|
slr < jit err shl sn sr ss
|
slr < jit err shl sn sr ss
|
clr < jit err shl sn sr ss
|
clr < jit err shl sn sr ss
|
ss < jit shl sn sr
|
ss < jit shl sn sr
|
sn < jit shl sr
|
sn < jit shl sr
|
jit < shl sr
|
jit < shl sr
|
shl < sr
|
shl < sr
|
sr <
|
sr <
|
|
|
What I think this means is that we don't need a damned table
|
What I think this means is that we don't need a damned table
|
here. If you just put the rows and columns in the right order,
|
here. If you just put the rows and columns in the right order,
|
it'd look awfully regular. We could simply walk the bpstat list
|
it'd look awfully regular. We could simply walk the bpstat list
|
and choose the highest priority action we find, with a little
|
and choose the highest priority action we find, with a little
|
logic to handle the 'err' cases. */
|
logic to handle the 'err' cases. */
|
|
|
/* step_resume entries: a step resume breakpoint overrides another
|
/* step_resume entries: a step resume breakpoint overrides another
|
breakpoint of signal handling (see comment in wait_for_inferior
|
breakpoint of signal handling (see comment in wait_for_inferior
|
at where we set the step_resume breakpoint). */
|
at where we set the step_resume breakpoint). */
|
|
|
static const enum bpstat_what_main_action
|
static const enum bpstat_what_main_action
|
table[(int) class_last][(int) BPSTAT_WHAT_LAST] =
|
table[(int) class_last][(int) BPSTAT_WHAT_LAST] =
|
{
|
{
|
/* old action */
|
/* old action */
|
/* kc ss sn sgl slr clr sr shl jit */
|
/* kc ss sn sgl slr clr sr shl jit */
|
/* no_effect */ {kc, ss, sn, sgl, slr, clr, sr, shl, jit},
|
/* no_effect */ {kc, ss, sn, sgl, slr, clr, sr, shl, jit},
|
/* wp_silent */ {ss, ss, sn, ss, ss, ss, sr, shl, jit},
|
/* wp_silent */ {ss, ss, sn, ss, ss, ss, sr, shl, jit},
|
/* wp_noisy */ {sn, sn, sn, sn, sn, sn, sr, shl, jit},
|
/* wp_noisy */ {sn, sn, sn, sn, sn, sn, sr, shl, jit},
|
/* bp_nostop */ {sgl, ss, sn, sgl, slr, slr, sr, shl, jit},
|
/* bp_nostop */ {sgl, ss, sn, sgl, slr, slr, sr, shl, jit},
|
/* bp_silent */ {ss, ss, sn, ss, ss, ss, sr, shl, jit},
|
/* bp_silent */ {ss, ss, sn, ss, ss, ss, sr, shl, jit},
|
/* bp_noisy */ {sn, sn, sn, sn, sn, sn, sr, shl, jit},
|
/* bp_noisy */ {sn, sn, sn, sn, sn, sn, sr, shl, jit},
|
/* long_jump */ {slr, ss, sn, slr, slr, err, sr, shl, jit},
|
/* long_jump */ {slr, ss, sn, slr, slr, err, sr, shl, jit},
|
/* long_resume */ {clr, ss, sn, err, err, err, sr, shl, jit},
|
/* long_resume */ {clr, ss, sn, err, err, err, sr, shl, jit},
|
/* step_resume */ {sr, sr, sr, sr, sr, sr, sr, sr, sr },
|
/* step_resume */ {sr, sr, sr, sr, sr, sr, sr, sr, sr },
|
/* shlib */ {shl, shl, shl, shl, shl, shl, sr, shl, shl},
|
/* shlib */ {shl, shl, shl, shl, shl, shl, sr, shl, shl},
|
/* jit_event */ {jit, jit, jit, jit, jit, jit, sr, jit, jit}
|
/* jit_event */ {jit, jit, jit, jit, jit, jit, sr, jit, jit}
|
};
|
};
|
|
|
#undef kc
|
#undef kc
|
#undef ss
|
#undef ss
|
#undef sn
|
#undef sn
|
#undef sgl
|
#undef sgl
|
#undef slr
|
#undef slr
|
#undef clr
|
#undef clr
|
#undef err
|
#undef err
|
#undef sr
|
#undef sr
|
#undef ts
|
#undef ts
|
#undef shl
|
#undef shl
|
#undef jit
|
#undef jit
|
enum bpstat_what_main_action current_action = BPSTAT_WHAT_KEEP_CHECKING;
|
enum bpstat_what_main_action current_action = BPSTAT_WHAT_KEEP_CHECKING;
|
struct bpstat_what retval;
|
struct bpstat_what retval;
|
|
|
retval.call_dummy = 0;
|
retval.call_dummy = 0;
|
for (; bs != NULL; bs = bs->next)
|
for (; bs != NULL; bs = bs->next)
|
{
|
{
|
enum class bs_class = no_effect;
|
enum class bs_class = no_effect;
|
if (bs->breakpoint_at == NULL)
|
if (bs->breakpoint_at == NULL)
|
/* I suspect this can happen if it was a momentary breakpoint
|
/* I suspect this can happen if it was a momentary breakpoint
|
which has since been deleted. */
|
which has since been deleted. */
|
continue;
|
continue;
|
if (bs->breakpoint_at->owner == NULL)
|
if (bs->breakpoint_at->owner == NULL)
|
bs_class = bp_nostop;
|
bs_class = bp_nostop;
|
else
|
else
|
switch (bs->breakpoint_at->owner->type)
|
switch (bs->breakpoint_at->owner->type)
|
{
|
{
|
case bp_none:
|
case bp_none:
|
continue;
|
continue;
|
|
|
case bp_breakpoint:
|
case bp_breakpoint:
|
case bp_hardware_breakpoint:
|
case bp_hardware_breakpoint:
|
case bp_until:
|
case bp_until:
|
case bp_finish:
|
case bp_finish:
|
if (bs->stop)
|
if (bs->stop)
|
{
|
{
|
if (bs->print)
|
if (bs->print)
|
bs_class = bp_noisy;
|
bs_class = bp_noisy;
|
else
|
else
|
bs_class = bp_silent;
|
bs_class = bp_silent;
|
}
|
}
|
else
|
else
|
bs_class = bp_nostop;
|
bs_class = bp_nostop;
|
break;
|
break;
|
case bp_watchpoint:
|
case bp_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_read_watchpoint:
|
case bp_read_watchpoint:
|
case bp_access_watchpoint:
|
case bp_access_watchpoint:
|
if (bs->stop)
|
if (bs->stop)
|
{
|
{
|
if (bs->print)
|
if (bs->print)
|
bs_class = wp_noisy;
|
bs_class = wp_noisy;
|
else
|
else
|
bs_class = wp_silent;
|
bs_class = wp_silent;
|
}
|
}
|
else
|
else
|
/* There was a watchpoint, but we're not stopping.
|
/* There was a watchpoint, but we're not stopping.
|
This requires no further action. */
|
This requires no further action. */
|
bs_class = no_effect;
|
bs_class = no_effect;
|
break;
|
break;
|
case bp_longjmp:
|
case bp_longjmp:
|
bs_class = long_jump;
|
bs_class = long_jump;
|
break;
|
break;
|
case bp_longjmp_resume:
|
case bp_longjmp_resume:
|
bs_class = long_resume;
|
bs_class = long_resume;
|
break;
|
break;
|
case bp_step_resume:
|
case bp_step_resume:
|
if (bs->stop)
|
if (bs->stop)
|
{
|
{
|
bs_class = step_resume;
|
bs_class = step_resume;
|
}
|
}
|
else
|
else
|
/* It is for the wrong frame. */
|
/* It is for the wrong frame. */
|
bs_class = bp_nostop;
|
bs_class = bp_nostop;
|
break;
|
break;
|
case bp_watchpoint_scope:
|
case bp_watchpoint_scope:
|
bs_class = bp_nostop;
|
bs_class = bp_nostop;
|
break;
|
break;
|
case bp_shlib_event:
|
case bp_shlib_event:
|
bs_class = shlib_event;
|
bs_class = shlib_event;
|
break;
|
break;
|
case bp_jit_event:
|
case bp_jit_event:
|
bs_class = jit_event;
|
bs_class = jit_event;
|
break;
|
break;
|
case bp_thread_event:
|
case bp_thread_event:
|
case bp_overlay_event:
|
case bp_overlay_event:
|
case bp_longjmp_master:
|
case bp_longjmp_master:
|
bs_class = bp_nostop;
|
bs_class = bp_nostop;
|
break;
|
break;
|
case bp_catchpoint:
|
case bp_catchpoint:
|
if (bs->stop)
|
if (bs->stop)
|
{
|
{
|
if (bs->print)
|
if (bs->print)
|
bs_class = bp_noisy;
|
bs_class = bp_noisy;
|
else
|
else
|
bs_class = bp_silent;
|
bs_class = bp_silent;
|
}
|
}
|
else
|
else
|
/* There was a catchpoint, but we're not stopping.
|
/* There was a catchpoint, but we're not stopping.
|
This requires no further action. */
|
This requires no further action. */
|
bs_class = no_effect;
|
bs_class = no_effect;
|
break;
|
break;
|
case bp_call_dummy:
|
case bp_call_dummy:
|
/* Make sure the action is stop (silent or noisy),
|
/* Make sure the action is stop (silent or noisy),
|
so infrun.c pops the dummy frame. */
|
so infrun.c pops the dummy frame. */
|
bs_class = bp_silent;
|
bs_class = bp_silent;
|
retval.call_dummy = 1;
|
retval.call_dummy = 1;
|
break;
|
break;
|
case bp_tracepoint:
|
case bp_tracepoint:
|
case bp_fast_tracepoint:
|
case bp_fast_tracepoint:
|
/* Tracepoint hits should not be reported back to GDB, and
|
/* Tracepoint hits should not be reported back to GDB, and
|
if one got through somehow, it should have been filtered
|
if one got through somehow, it should have been filtered
|
out already. */
|
out already. */
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("bpstat_what: tracepoint encountered"));
|
_("bpstat_what: tracepoint encountered"));
|
break;
|
break;
|
}
|
}
|
current_action = table[(int) bs_class][(int) current_action];
|
current_action = table[(int) bs_class][(int) current_action];
|
}
|
}
|
retval.main_action = current_action;
|
retval.main_action = current_action;
|
return retval;
|
return retval;
|
}
|
}
|
|
|
/* Nonzero if we should step constantly (e.g. watchpoints on machines
|
/* Nonzero if we should step constantly (e.g. watchpoints on machines
|
without hardware support). This isn't related to a specific bpstat,
|
without hardware support). This isn't related to a specific bpstat,
|
just to things like whether watchpoints are set. */
|
just to things like whether watchpoints are set. */
|
|
|
int
|
int
|
bpstat_should_step (void)
|
bpstat_should_step (void)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (breakpoint_enabled (b) && b->type == bp_watchpoint && b->loc != NULL)
|
if (breakpoint_enabled (b) && b->type == bp_watchpoint && b->loc != NULL)
|
return 1;
|
return 1;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
int
|
int
|
bpstat_causes_stop (bpstat bs)
|
bpstat_causes_stop (bpstat bs)
|
{
|
{
|
for (; bs != NULL; bs = bs->next)
|
for (; bs != NULL; bs = bs->next)
|
if (bs->stop)
|
if (bs->stop)
|
return 1;
|
return 1;
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
|
|
|
|
/* Print the LOC location out of the list of B->LOC locations. */
|
/* Print the LOC location out of the list of B->LOC locations. */
|
|
|
static void print_breakpoint_location (struct breakpoint *b,
|
static void print_breakpoint_location (struct breakpoint *b,
|
struct bp_location *loc,
|
struct bp_location *loc,
|
char *wrap_indent,
|
char *wrap_indent,
|
struct ui_stream *stb)
|
struct ui_stream *stb)
|
{
|
{
|
struct cleanup *old_chain = save_current_program_space ();
|
struct cleanup *old_chain = save_current_program_space ();
|
|
|
if (loc != NULL && loc->shlib_disabled)
|
if (loc != NULL && loc->shlib_disabled)
|
loc = NULL;
|
loc = NULL;
|
|
|
if (loc != NULL)
|
if (loc != NULL)
|
set_current_program_space (loc->pspace);
|
set_current_program_space (loc->pspace);
|
|
|
if (b->source_file && loc)
|
if (b->source_file && loc)
|
{
|
{
|
struct symbol *sym
|
struct symbol *sym
|
= find_pc_sect_function (loc->address, loc->section);
|
= find_pc_sect_function (loc->address, loc->section);
|
if (sym)
|
if (sym)
|
{
|
{
|
ui_out_text (uiout, "in ");
|
ui_out_text (uiout, "in ");
|
ui_out_field_string (uiout, "func",
|
ui_out_field_string (uiout, "func",
|
SYMBOL_PRINT_NAME (sym));
|
SYMBOL_PRINT_NAME (sym));
|
ui_out_wrap_hint (uiout, wrap_indent);
|
ui_out_wrap_hint (uiout, wrap_indent);
|
ui_out_text (uiout, " at ");
|
ui_out_text (uiout, " at ");
|
}
|
}
|
ui_out_field_string (uiout, "file", b->source_file);
|
ui_out_field_string (uiout, "file", b->source_file);
|
ui_out_text (uiout, ":");
|
ui_out_text (uiout, ":");
|
|
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
{
|
{
|
struct symtab_and_line sal = find_pc_line (loc->address, 0);
|
struct symtab_and_line sal = find_pc_line (loc->address, 0);
|
char *fullname = symtab_to_fullname (sal.symtab);
|
char *fullname = symtab_to_fullname (sal.symtab);
|
|
|
if (fullname)
|
if (fullname)
|
ui_out_field_string (uiout, "fullname", fullname);
|
ui_out_field_string (uiout, "fullname", fullname);
|
}
|
}
|
|
|
ui_out_field_int (uiout, "line", b->line_number);
|
ui_out_field_int (uiout, "line", b->line_number);
|
}
|
}
|
else if (loc)
|
else if (loc)
|
{
|
{
|
print_address_symbolic (loc->gdbarch, loc->address, stb->stream,
|
print_address_symbolic (loc->gdbarch, loc->address, stb->stream,
|
demangle, "");
|
demangle, "");
|
ui_out_field_stream (uiout, "at", stb);
|
ui_out_field_stream (uiout, "at", stb);
|
}
|
}
|
else
|
else
|
ui_out_field_string (uiout, "pending", b->addr_string);
|
ui_out_field_string (uiout, "pending", b->addr_string);
|
|
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
}
|
}
|
|
|
/* Print B to gdb_stdout. */
|
/* Print B to gdb_stdout. */
|
static void
|
static void
|
print_one_breakpoint_location (struct breakpoint *b,
|
print_one_breakpoint_location (struct breakpoint *b,
|
struct bp_location *loc,
|
struct bp_location *loc,
|
int loc_number,
|
int loc_number,
|
struct bp_location **last_loc,
|
struct bp_location **last_loc,
|
int print_address_bits,
|
int print_address_bits,
|
int allflag)
|
int allflag)
|
{
|
{
|
struct command_line *l;
|
struct command_line *l;
|
struct symbol *sym;
|
struct symbol *sym;
|
struct ep_type_description
|
struct ep_type_description
|
{
|
{
|
enum bptype type;
|
enum bptype type;
|
char *description;
|
char *description;
|
};
|
};
|
static struct ep_type_description bptypes[] =
|
static struct ep_type_description bptypes[] =
|
{
|
{
|
{bp_none, "?deleted?"},
|
{bp_none, "?deleted?"},
|
{bp_breakpoint, "breakpoint"},
|
{bp_breakpoint, "breakpoint"},
|
{bp_hardware_breakpoint, "hw breakpoint"},
|
{bp_hardware_breakpoint, "hw breakpoint"},
|
{bp_until, "until"},
|
{bp_until, "until"},
|
{bp_finish, "finish"},
|
{bp_finish, "finish"},
|
{bp_watchpoint, "watchpoint"},
|
{bp_watchpoint, "watchpoint"},
|
{bp_hardware_watchpoint, "hw watchpoint"},
|
{bp_hardware_watchpoint, "hw watchpoint"},
|
{bp_read_watchpoint, "read watchpoint"},
|
{bp_read_watchpoint, "read watchpoint"},
|
{bp_access_watchpoint, "acc watchpoint"},
|
{bp_access_watchpoint, "acc watchpoint"},
|
{bp_longjmp, "longjmp"},
|
{bp_longjmp, "longjmp"},
|
{bp_longjmp_resume, "longjmp resume"},
|
{bp_longjmp_resume, "longjmp resume"},
|
{bp_step_resume, "step resume"},
|
{bp_step_resume, "step resume"},
|
{bp_watchpoint_scope, "watchpoint scope"},
|
{bp_watchpoint_scope, "watchpoint scope"},
|
{bp_call_dummy, "call dummy"},
|
{bp_call_dummy, "call dummy"},
|
{bp_shlib_event, "shlib events"},
|
{bp_shlib_event, "shlib events"},
|
{bp_thread_event, "thread events"},
|
{bp_thread_event, "thread events"},
|
{bp_overlay_event, "overlay events"},
|
{bp_overlay_event, "overlay events"},
|
{bp_longjmp_master, "longjmp master"},
|
{bp_longjmp_master, "longjmp master"},
|
{bp_catchpoint, "catchpoint"},
|
{bp_catchpoint, "catchpoint"},
|
{bp_tracepoint, "tracepoint"},
|
{bp_tracepoint, "tracepoint"},
|
{bp_fast_tracepoint, "fast tracepoint"},
|
{bp_fast_tracepoint, "fast tracepoint"},
|
{bp_jit_event, "jit events"},
|
{bp_jit_event, "jit events"},
|
};
|
};
|
|
|
static char bpenables[] = "nynny";
|
static char bpenables[] = "nynny";
|
char wrap_indent[80];
|
char wrap_indent[80];
|
struct ui_stream *stb = ui_out_stream_new (uiout);
|
struct ui_stream *stb = ui_out_stream_new (uiout);
|
struct cleanup *old_chain = make_cleanup_ui_out_stream_delete (stb);
|
struct cleanup *old_chain = make_cleanup_ui_out_stream_delete (stb);
|
struct cleanup *bkpt_chain;
|
struct cleanup *bkpt_chain;
|
|
|
int header_of_multiple = 0;
|
int header_of_multiple = 0;
|
int part_of_multiple = (loc != NULL);
|
int part_of_multiple = (loc != NULL);
|
struct value_print_options opts;
|
struct value_print_options opts;
|
|
|
get_user_print_options (&opts);
|
get_user_print_options (&opts);
|
|
|
gdb_assert (!loc || loc_number != 0);
|
gdb_assert (!loc || loc_number != 0);
|
/* See comment in print_one_breakpoint concerning
|
/* See comment in print_one_breakpoint concerning
|
treatment of breakpoints with single disabled
|
treatment of breakpoints with single disabled
|
location. */
|
location. */
|
if (loc == NULL
|
if (loc == NULL
|
&& (b->loc != NULL
|
&& (b->loc != NULL
|
&& (b->loc->next != NULL || !b->loc->enabled)))
|
&& (b->loc->next != NULL || !b->loc->enabled)))
|
header_of_multiple = 1;
|
header_of_multiple = 1;
|
if (loc == NULL)
|
if (loc == NULL)
|
loc = b->loc;
|
loc = b->loc;
|
|
|
annotate_record ();
|
annotate_record ();
|
bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "bkpt");
|
bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "bkpt");
|
|
|
/* 1 */
|
/* 1 */
|
annotate_field (0);
|
annotate_field (0);
|
if (part_of_multiple)
|
if (part_of_multiple)
|
{
|
{
|
char *formatted;
|
char *formatted;
|
formatted = xstrprintf ("%d.%d", b->number, loc_number);
|
formatted = xstrprintf ("%d.%d", b->number, loc_number);
|
ui_out_field_string (uiout, "number", formatted);
|
ui_out_field_string (uiout, "number", formatted);
|
xfree (formatted);
|
xfree (formatted);
|
}
|
}
|
else
|
else
|
{
|
{
|
ui_out_field_int (uiout, "number", b->number);
|
ui_out_field_int (uiout, "number", b->number);
|
}
|
}
|
|
|
/* 2 */
|
/* 2 */
|
annotate_field (1);
|
annotate_field (1);
|
if (part_of_multiple)
|
if (part_of_multiple)
|
ui_out_field_skip (uiout, "type");
|
ui_out_field_skip (uiout, "type");
|
else
|
else
|
{
|
{
|
if (((int) b->type >= (sizeof (bptypes) / sizeof (bptypes[0])))
|
if (((int) b->type >= (sizeof (bptypes) / sizeof (bptypes[0])))
|
|| ((int) b->type != bptypes[(int) b->type].type))
|
|| ((int) b->type != bptypes[(int) b->type].type))
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("bptypes table does not describe type #%d."),
|
_("bptypes table does not describe type #%d."),
|
(int) b->type);
|
(int) b->type);
|
ui_out_field_string (uiout, "type", bptypes[(int) b->type].description);
|
ui_out_field_string (uiout, "type", bptypes[(int) b->type].description);
|
}
|
}
|
|
|
/* 3 */
|
/* 3 */
|
annotate_field (2);
|
annotate_field (2);
|
if (part_of_multiple)
|
if (part_of_multiple)
|
ui_out_field_skip (uiout, "disp");
|
ui_out_field_skip (uiout, "disp");
|
else
|
else
|
ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
|
ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
|
|
|
|
|
/* 4 */
|
/* 4 */
|
annotate_field (3);
|
annotate_field (3);
|
if (part_of_multiple)
|
if (part_of_multiple)
|
ui_out_field_string (uiout, "enabled", loc->enabled ? "y" : "n");
|
ui_out_field_string (uiout, "enabled", loc->enabled ? "y" : "n");
|
else
|
else
|
ui_out_field_fmt (uiout, "enabled", "%c",
|
ui_out_field_fmt (uiout, "enabled", "%c",
|
bpenables[(int) b->enable_state]);
|
bpenables[(int) b->enable_state]);
|
ui_out_spaces (uiout, 2);
|
ui_out_spaces (uiout, 2);
|
|
|
|
|
/* 5 and 6 */
|
/* 5 and 6 */
|
strcpy (wrap_indent, " ");
|
strcpy (wrap_indent, " ");
|
if (opts.addressprint)
|
if (opts.addressprint)
|
{
|
{
|
if (print_address_bits <= 32)
|
if (print_address_bits <= 32)
|
strcat (wrap_indent, " ");
|
strcat (wrap_indent, " ");
|
else
|
else
|
strcat (wrap_indent, " ");
|
strcat (wrap_indent, " ");
|
}
|
}
|
|
|
if (b->ops != NULL && b->ops->print_one != NULL)
|
if (b->ops != NULL && b->ops->print_one != NULL)
|
{
|
{
|
/* Although the print_one can possibly print
|
/* Although the print_one can possibly print
|
all locations, calling it here is not likely
|
all locations, calling it here is not likely
|
to get any nice result. So, make sure there's
|
to get any nice result. So, make sure there's
|
just one location. */
|
just one location. */
|
gdb_assert (b->loc == NULL || b->loc->next == NULL);
|
gdb_assert (b->loc == NULL || b->loc->next == NULL);
|
b->ops->print_one (b, last_loc);
|
b->ops->print_one (b, last_loc);
|
}
|
}
|
else
|
else
|
switch (b->type)
|
switch (b->type)
|
{
|
{
|
case bp_none:
|
case bp_none:
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("print_one_breakpoint: bp_none encountered\n"));
|
_("print_one_breakpoint: bp_none encountered\n"));
|
break;
|
break;
|
|
|
case bp_watchpoint:
|
case bp_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_read_watchpoint:
|
case bp_read_watchpoint:
|
case bp_access_watchpoint:
|
case bp_access_watchpoint:
|
/* Field 4, the address, is omitted (which makes the columns
|
/* Field 4, the address, is omitted (which makes the columns
|
not line up too nicely with the headers, but the effect
|
not line up too nicely with the headers, but the effect
|
is relatively readable). */
|
is relatively readable). */
|
if (opts.addressprint)
|
if (opts.addressprint)
|
ui_out_field_skip (uiout, "addr");
|
ui_out_field_skip (uiout, "addr");
|
annotate_field (5);
|
annotate_field (5);
|
ui_out_field_string (uiout, "what", b->exp_string);
|
ui_out_field_string (uiout, "what", b->exp_string);
|
break;
|
break;
|
|
|
case bp_breakpoint:
|
case bp_breakpoint:
|
case bp_hardware_breakpoint:
|
case bp_hardware_breakpoint:
|
case bp_until:
|
case bp_until:
|
case bp_finish:
|
case bp_finish:
|
case bp_longjmp:
|
case bp_longjmp:
|
case bp_longjmp_resume:
|
case bp_longjmp_resume:
|
case bp_step_resume:
|
case bp_step_resume:
|
case bp_watchpoint_scope:
|
case bp_watchpoint_scope:
|
case bp_call_dummy:
|
case bp_call_dummy:
|
case bp_shlib_event:
|
case bp_shlib_event:
|
case bp_thread_event:
|
case bp_thread_event:
|
case bp_overlay_event:
|
case bp_overlay_event:
|
case bp_longjmp_master:
|
case bp_longjmp_master:
|
case bp_tracepoint:
|
case bp_tracepoint:
|
case bp_fast_tracepoint:
|
case bp_fast_tracepoint:
|
case bp_jit_event:
|
case bp_jit_event:
|
if (opts.addressprint)
|
if (opts.addressprint)
|
{
|
{
|
annotate_field (4);
|
annotate_field (4);
|
if (header_of_multiple)
|
if (header_of_multiple)
|
ui_out_field_string (uiout, "addr", "<MULTIPLE>");
|
ui_out_field_string (uiout, "addr", "<MULTIPLE>");
|
else if (b->loc == NULL || loc->shlib_disabled)
|
else if (b->loc == NULL || loc->shlib_disabled)
|
ui_out_field_string (uiout, "addr", "<PENDING>");
|
ui_out_field_string (uiout, "addr", "<PENDING>");
|
else
|
else
|
ui_out_field_core_addr (uiout, "addr",
|
ui_out_field_core_addr (uiout, "addr",
|
loc->gdbarch, loc->address);
|
loc->gdbarch, loc->address);
|
}
|
}
|
annotate_field (5);
|
annotate_field (5);
|
if (!header_of_multiple)
|
if (!header_of_multiple)
|
print_breakpoint_location (b, loc, wrap_indent, stb);
|
print_breakpoint_location (b, loc, wrap_indent, stb);
|
if (b->loc)
|
if (b->loc)
|
*last_loc = b->loc;
|
*last_loc = b->loc;
|
break;
|
break;
|
}
|
}
|
|
|
|
|
/* For backward compatibility, don't display inferiors unless there
|
/* For backward compatibility, don't display inferiors unless there
|
are several. */
|
are several. */
|
if (loc != NULL
|
if (loc != NULL
|
&& !header_of_multiple
|
&& !header_of_multiple
|
&& (allflag
|
&& (allflag
|
|| (!gdbarch_has_global_breakpoints (target_gdbarch)
|
|| (!gdbarch_has_global_breakpoints (target_gdbarch)
|
&& (number_of_program_spaces () > 1
|
&& (number_of_program_spaces () > 1
|
|| number_of_inferiors () > 1)
|
|| number_of_inferiors () > 1)
|
&& loc->owner->type != bp_catchpoint)))
|
&& loc->owner->type != bp_catchpoint)))
|
{
|
{
|
struct inferior *inf;
|
struct inferior *inf;
|
int first = 1;
|
int first = 1;
|
|
|
for (inf = inferior_list; inf != NULL; inf = inf->next)
|
for (inf = inferior_list; inf != NULL; inf = inf->next)
|
{
|
{
|
if (inf->pspace == loc->pspace)
|
if (inf->pspace == loc->pspace)
|
{
|
{
|
if (first)
|
if (first)
|
{
|
{
|
first = 0;
|
first = 0;
|
ui_out_text (uiout, " inf ");
|
ui_out_text (uiout, " inf ");
|
}
|
}
|
else
|
else
|
ui_out_text (uiout, ", ");
|
ui_out_text (uiout, ", ");
|
ui_out_text (uiout, plongest (inf->num));
|
ui_out_text (uiout, plongest (inf->num));
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (!part_of_multiple)
|
if (!part_of_multiple)
|
{
|
{
|
if (b->thread != -1)
|
if (b->thread != -1)
|
{
|
{
|
/* FIXME: This seems to be redundant and lost here; see the
|
/* FIXME: This seems to be redundant and lost here; see the
|
"stop only in" line a little further down. */
|
"stop only in" line a little further down. */
|
ui_out_text (uiout, " thread ");
|
ui_out_text (uiout, " thread ");
|
ui_out_field_int (uiout, "thread", b->thread);
|
ui_out_field_int (uiout, "thread", b->thread);
|
}
|
}
|
else if (b->task != 0)
|
else if (b->task != 0)
|
{
|
{
|
ui_out_text (uiout, " task ");
|
ui_out_text (uiout, " task ");
|
ui_out_field_int (uiout, "task", b->task);
|
ui_out_field_int (uiout, "task", b->task);
|
}
|
}
|
}
|
}
|
|
|
ui_out_text (uiout, "\n");
|
ui_out_text (uiout, "\n");
|
|
|
if (part_of_multiple && frame_id_p (b->frame_id))
|
if (part_of_multiple && frame_id_p (b->frame_id))
|
{
|
{
|
annotate_field (6);
|
annotate_field (6);
|
ui_out_text (uiout, "\tstop only in stack frame at ");
|
ui_out_text (uiout, "\tstop only in stack frame at ");
|
/* FIXME: cagney/2002-12-01: Shouldn't be poeking around inside
|
/* FIXME: cagney/2002-12-01: Shouldn't be poeking around inside
|
the frame ID. */
|
the frame ID. */
|
ui_out_field_core_addr (uiout, "frame",
|
ui_out_field_core_addr (uiout, "frame",
|
b->gdbarch, b->frame_id.stack_addr);
|
b->gdbarch, b->frame_id.stack_addr);
|
ui_out_text (uiout, "\n");
|
ui_out_text (uiout, "\n");
|
}
|
}
|
|
|
if (!part_of_multiple && b->cond_string && !ada_exception_catchpoint_p (b))
|
if (!part_of_multiple && b->cond_string && !ada_exception_catchpoint_p (b))
|
{
|
{
|
/* We do not print the condition for Ada exception catchpoints
|
/* We do not print the condition for Ada exception catchpoints
|
because the condition is an internal implementation detail
|
because the condition is an internal implementation detail
|
that we do not want to expose to the user. */
|
that we do not want to expose to the user. */
|
annotate_field (7);
|
annotate_field (7);
|
if (tracepoint_type (b))
|
if (tracepoint_type (b))
|
ui_out_text (uiout, "\ttrace only if ");
|
ui_out_text (uiout, "\ttrace only if ");
|
else
|
else
|
ui_out_text (uiout, "\tstop only if ");
|
ui_out_text (uiout, "\tstop only if ");
|
ui_out_field_string (uiout, "cond", b->cond_string);
|
ui_out_field_string (uiout, "cond", b->cond_string);
|
ui_out_text (uiout, "\n");
|
ui_out_text (uiout, "\n");
|
}
|
}
|
|
|
if (!part_of_multiple && b->thread != -1)
|
if (!part_of_multiple && b->thread != -1)
|
{
|
{
|
/* FIXME should make an annotation for this */
|
/* FIXME should make an annotation for this */
|
ui_out_text (uiout, "\tstop only in thread ");
|
ui_out_text (uiout, "\tstop only in thread ");
|
ui_out_field_int (uiout, "thread", b->thread);
|
ui_out_field_int (uiout, "thread", b->thread);
|
ui_out_text (uiout, "\n");
|
ui_out_text (uiout, "\n");
|
}
|
}
|
|
|
if (!part_of_multiple && b->hit_count)
|
if (!part_of_multiple && b->hit_count)
|
{
|
{
|
/* FIXME should make an annotation for this */
|
/* FIXME should make an annotation for this */
|
if (ep_is_catchpoint (b))
|
if (ep_is_catchpoint (b))
|
ui_out_text (uiout, "\tcatchpoint");
|
ui_out_text (uiout, "\tcatchpoint");
|
else
|
else
|
ui_out_text (uiout, "\tbreakpoint");
|
ui_out_text (uiout, "\tbreakpoint");
|
ui_out_text (uiout, " already hit ");
|
ui_out_text (uiout, " already hit ");
|
ui_out_field_int (uiout, "times", b->hit_count);
|
ui_out_field_int (uiout, "times", b->hit_count);
|
if (b->hit_count == 1)
|
if (b->hit_count == 1)
|
ui_out_text (uiout, " time\n");
|
ui_out_text (uiout, " time\n");
|
else
|
else
|
ui_out_text (uiout, " times\n");
|
ui_out_text (uiout, " times\n");
|
}
|
}
|
|
|
/* Output the count also if it is zero, but only if this is
|
/* Output the count also if it is zero, but only if this is
|
mi. FIXME: Should have a better test for this. */
|
mi. FIXME: Should have a better test for this. */
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
if (!part_of_multiple && b->hit_count == 0)
|
if (!part_of_multiple && b->hit_count == 0)
|
ui_out_field_int (uiout, "times", b->hit_count);
|
ui_out_field_int (uiout, "times", b->hit_count);
|
|
|
if (!part_of_multiple && b->ignore_count)
|
if (!part_of_multiple && b->ignore_count)
|
{
|
{
|
annotate_field (8);
|
annotate_field (8);
|
ui_out_text (uiout, "\tignore next ");
|
ui_out_text (uiout, "\tignore next ");
|
ui_out_field_int (uiout, "ignore", b->ignore_count);
|
ui_out_field_int (uiout, "ignore", b->ignore_count);
|
ui_out_text (uiout, " hits\n");
|
ui_out_text (uiout, " hits\n");
|
}
|
}
|
|
|
l = b->commands;
|
l = b->commands;
|
if (!part_of_multiple && l)
|
if (!part_of_multiple && l)
|
{
|
{
|
struct cleanup *script_chain;
|
struct cleanup *script_chain;
|
|
|
annotate_field (9);
|
annotate_field (9);
|
script_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "script");
|
script_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "script");
|
print_command_lines (uiout, l, 4);
|
print_command_lines (uiout, l, 4);
|
do_cleanups (script_chain);
|
do_cleanups (script_chain);
|
}
|
}
|
|
|
if (!part_of_multiple && b->pass_count)
|
if (!part_of_multiple && b->pass_count)
|
{
|
{
|
annotate_field (10);
|
annotate_field (10);
|
ui_out_text (uiout, "\tpass count ");
|
ui_out_text (uiout, "\tpass count ");
|
ui_out_field_int (uiout, "pass", b->pass_count);
|
ui_out_field_int (uiout, "pass", b->pass_count);
|
ui_out_text (uiout, " \n");
|
ui_out_text (uiout, " \n");
|
}
|
}
|
|
|
if (!part_of_multiple && b->step_count)
|
if (!part_of_multiple && b->step_count)
|
{
|
{
|
annotate_field (11);
|
annotate_field (11);
|
ui_out_text (uiout, "\tstep count ");
|
ui_out_text (uiout, "\tstep count ");
|
ui_out_field_int (uiout, "step", b->step_count);
|
ui_out_field_int (uiout, "step", b->step_count);
|
ui_out_text (uiout, " \n");
|
ui_out_text (uiout, " \n");
|
}
|
}
|
|
|
if (!part_of_multiple && b->actions)
|
if (!part_of_multiple && b->actions)
|
{
|
{
|
struct action_line *action;
|
struct action_line *action;
|
annotate_field (12);
|
annotate_field (12);
|
for (action = b->actions; action; action = action->next)
|
for (action = b->actions; action; action = action->next)
|
{
|
{
|
ui_out_text (uiout, " A\t");
|
ui_out_text (uiout, " A\t");
|
ui_out_text (uiout, action->action);
|
ui_out_text (uiout, action->action);
|
ui_out_text (uiout, "\n");
|
ui_out_text (uiout, "\n");
|
}
|
}
|
}
|
}
|
|
|
if (ui_out_is_mi_like_p (uiout) && !part_of_multiple)
|
if (ui_out_is_mi_like_p (uiout) && !part_of_multiple)
|
{
|
{
|
if (b->addr_string)
|
if (b->addr_string)
|
ui_out_field_string (uiout, "original-location", b->addr_string);
|
ui_out_field_string (uiout, "original-location", b->addr_string);
|
else if (b->exp_string)
|
else if (b->exp_string)
|
ui_out_field_string (uiout, "original-location", b->exp_string);
|
ui_out_field_string (uiout, "original-location", b->exp_string);
|
}
|
}
|
|
|
do_cleanups (bkpt_chain);
|
do_cleanups (bkpt_chain);
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
}
|
}
|
|
|
static void
|
static void
|
print_one_breakpoint (struct breakpoint *b,
|
print_one_breakpoint (struct breakpoint *b,
|
struct bp_location **last_loc, int print_address_bits,
|
struct bp_location **last_loc, int print_address_bits,
|
int allflag)
|
int allflag)
|
{
|
{
|
print_one_breakpoint_location (b, NULL, 0, last_loc,
|
print_one_breakpoint_location (b, NULL, 0, last_loc,
|
print_address_bits, allflag);
|
print_address_bits, allflag);
|
|
|
/* If this breakpoint has custom print function,
|
/* If this breakpoint has custom print function,
|
it's already printed. Otherwise, print individual
|
it's already printed. Otherwise, print individual
|
locations, if any. */
|
locations, if any. */
|
if (b->ops == NULL || b->ops->print_one == NULL)
|
if (b->ops == NULL || b->ops->print_one == NULL)
|
{
|
{
|
/* If breakpoint has a single location that is
|
/* If breakpoint has a single location that is
|
disabled, we print it as if it had
|
disabled, we print it as if it had
|
several locations, since otherwise it's hard to
|
several locations, since otherwise it's hard to
|
represent "breakpoint enabled, location disabled"
|
represent "breakpoint enabled, location disabled"
|
situation.
|
situation.
|
Note that while hardware watchpoints have
|
Note that while hardware watchpoints have
|
several locations internally, that's no a property
|
several locations internally, that's no a property
|
exposed to user. */
|
exposed to user. */
|
if (b->loc
|
if (b->loc
|
&& !is_hardware_watchpoint (b)
|
&& !is_hardware_watchpoint (b)
|
&& (b->loc->next || !b->loc->enabled)
|
&& (b->loc->next || !b->loc->enabled)
|
&& !ui_out_is_mi_like_p (uiout))
|
&& !ui_out_is_mi_like_p (uiout))
|
{
|
{
|
struct bp_location *loc;
|
struct bp_location *loc;
|
int n = 1;
|
int n = 1;
|
for (loc = b->loc; loc; loc = loc->next, ++n)
|
for (loc = b->loc; loc; loc = loc->next, ++n)
|
print_one_breakpoint_location (b, loc, n, last_loc,
|
print_one_breakpoint_location (b, loc, n, last_loc,
|
print_address_bits, allflag);
|
print_address_bits, allflag);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
static int
|
static int
|
breakpoint_address_bits (struct breakpoint *b)
|
breakpoint_address_bits (struct breakpoint *b)
|
{
|
{
|
int print_address_bits = 0;
|
int print_address_bits = 0;
|
struct bp_location *loc;
|
struct bp_location *loc;
|
|
|
for (loc = b->loc; loc; loc = loc->next)
|
for (loc = b->loc; loc; loc = loc->next)
|
{
|
{
|
int addr_bit = gdbarch_addr_bit (loc->gdbarch);
|
int addr_bit = gdbarch_addr_bit (loc->gdbarch);
|
if (addr_bit > print_address_bits)
|
if (addr_bit > print_address_bits)
|
print_address_bits = addr_bit;
|
print_address_bits = addr_bit;
|
}
|
}
|
|
|
return print_address_bits;
|
return print_address_bits;
|
}
|
}
|
|
|
struct captured_breakpoint_query_args
|
struct captured_breakpoint_query_args
|
{
|
{
|
int bnum;
|
int bnum;
|
};
|
};
|
|
|
static int
|
static int
|
do_captured_breakpoint_query (struct ui_out *uiout, void *data)
|
do_captured_breakpoint_query (struct ui_out *uiout, void *data)
|
{
|
{
|
struct captured_breakpoint_query_args *args = data;
|
struct captured_breakpoint_query_args *args = data;
|
struct breakpoint *b;
|
struct breakpoint *b;
|
struct bp_location *dummy_loc = NULL;
|
struct bp_location *dummy_loc = NULL;
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
{
|
{
|
if (args->bnum == b->number)
|
if (args->bnum == b->number)
|
{
|
{
|
int print_address_bits = breakpoint_address_bits (b);
|
int print_address_bits = breakpoint_address_bits (b);
|
print_one_breakpoint (b, &dummy_loc, print_address_bits, 0);
|
print_one_breakpoint (b, &dummy_loc, print_address_bits, 0);
|
return GDB_RC_OK;
|
return GDB_RC_OK;
|
}
|
}
|
}
|
}
|
return GDB_RC_NONE;
|
return GDB_RC_NONE;
|
}
|
}
|
|
|
enum gdb_rc
|
enum gdb_rc
|
gdb_breakpoint_query (struct ui_out *uiout, int bnum, char **error_message)
|
gdb_breakpoint_query (struct ui_out *uiout, int bnum, char **error_message)
|
{
|
{
|
struct captured_breakpoint_query_args args;
|
struct captured_breakpoint_query_args args;
|
args.bnum = bnum;
|
args.bnum = bnum;
|
/* For the moment we don't trust print_one_breakpoint() to not throw
|
/* For the moment we don't trust print_one_breakpoint() to not throw
|
an error. */
|
an error. */
|
if (catch_exceptions_with_msg (uiout, do_captured_breakpoint_query, &args,
|
if (catch_exceptions_with_msg (uiout, do_captured_breakpoint_query, &args,
|
error_message, RETURN_MASK_ALL) < 0)
|
error_message, RETURN_MASK_ALL) < 0)
|
return GDB_RC_FAIL;
|
return GDB_RC_FAIL;
|
else
|
else
|
return GDB_RC_OK;
|
return GDB_RC_OK;
|
}
|
}
|
|
|
/* Return non-zero if B is user settable (breakpoints, watchpoints,
|
/* Return non-zero if B is user settable (breakpoints, watchpoints,
|
catchpoints, et.al.). */
|
catchpoints, et.al.). */
|
|
|
static int
|
static int
|
user_settable_breakpoint (const struct breakpoint *b)
|
user_settable_breakpoint (const struct breakpoint *b)
|
{
|
{
|
return (b->type == bp_breakpoint
|
return (b->type == bp_breakpoint
|
|| b->type == bp_catchpoint
|
|| b->type == bp_catchpoint
|
|| b->type == bp_hardware_breakpoint
|
|| b->type == bp_hardware_breakpoint
|
|| tracepoint_type (b)
|
|| tracepoint_type (b)
|
|| b->type == bp_watchpoint
|
|| b->type == bp_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_access_watchpoint
|
|| b->type == bp_access_watchpoint
|
|| b->type == bp_hardware_watchpoint);
|
|| b->type == bp_hardware_watchpoint);
|
}
|
}
|
|
|
/* Print information on user settable breakpoint (watchpoint, etc)
|
/* Print information on user settable breakpoint (watchpoint, etc)
|
number BNUM. If BNUM is -1 print all user settable breakpoints.
|
number BNUM. If BNUM is -1 print all user settable breakpoints.
|
If ALLFLAG is non-zero, include non- user settable breakpoints. */
|
If ALLFLAG is non-zero, include non- user settable breakpoints. */
|
|
|
static void
|
static void
|
breakpoint_1 (int bnum, int allflag)
|
breakpoint_1 (int bnum, int allflag)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
struct bp_location *last_loc = NULL;
|
struct bp_location *last_loc = NULL;
|
int nr_printable_breakpoints;
|
int nr_printable_breakpoints;
|
struct cleanup *bkpttbl_chain;
|
struct cleanup *bkpttbl_chain;
|
struct value_print_options opts;
|
struct value_print_options opts;
|
int print_address_bits = 0;
|
int print_address_bits = 0;
|
|
|
get_user_print_options (&opts);
|
get_user_print_options (&opts);
|
|
|
/* Compute the number of rows in the table, as well as the
|
/* Compute the number of rows in the table, as well as the
|
size required for address fields. */
|
size required for address fields. */
|
nr_printable_breakpoints = 0;
|
nr_printable_breakpoints = 0;
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (bnum == -1
|
if (bnum == -1
|
|| bnum == b->number)
|
|| bnum == b->number)
|
{
|
{
|
if (allflag || user_settable_breakpoint (b))
|
if (allflag || user_settable_breakpoint (b))
|
{
|
{
|
int addr_bit = breakpoint_address_bits (b);
|
int addr_bit = breakpoint_address_bits (b);
|
if (addr_bit > print_address_bits)
|
if (addr_bit > print_address_bits)
|
print_address_bits = addr_bit;
|
print_address_bits = addr_bit;
|
|
|
nr_printable_breakpoints++;
|
nr_printable_breakpoints++;
|
}
|
}
|
}
|
}
|
|
|
if (opts.addressprint)
|
if (opts.addressprint)
|
bkpttbl_chain
|
bkpttbl_chain
|
= make_cleanup_ui_out_table_begin_end (uiout, 6, nr_printable_breakpoints,
|
= make_cleanup_ui_out_table_begin_end (uiout, 6, nr_printable_breakpoints,
|
"BreakpointTable");
|
"BreakpointTable");
|
else
|
else
|
bkpttbl_chain
|
bkpttbl_chain
|
= make_cleanup_ui_out_table_begin_end (uiout, 5, nr_printable_breakpoints,
|
= make_cleanup_ui_out_table_begin_end (uiout, 5, nr_printable_breakpoints,
|
"BreakpointTable");
|
"BreakpointTable");
|
|
|
if (nr_printable_breakpoints > 0)
|
if (nr_printable_breakpoints > 0)
|
annotate_breakpoints_headers ();
|
annotate_breakpoints_headers ();
|
if (nr_printable_breakpoints > 0)
|
if (nr_printable_breakpoints > 0)
|
annotate_field (0);
|
annotate_field (0);
|
ui_out_table_header (uiout, 7, ui_left, "number", "Num"); /* 1 */
|
ui_out_table_header (uiout, 7, ui_left, "number", "Num"); /* 1 */
|
if (nr_printable_breakpoints > 0)
|
if (nr_printable_breakpoints > 0)
|
annotate_field (1);
|
annotate_field (1);
|
ui_out_table_header (uiout, 14, ui_left, "type", "Type"); /* 2 */
|
ui_out_table_header (uiout, 14, ui_left, "type", "Type"); /* 2 */
|
if (nr_printable_breakpoints > 0)
|
if (nr_printable_breakpoints > 0)
|
annotate_field (2);
|
annotate_field (2);
|
ui_out_table_header (uiout, 4, ui_left, "disp", "Disp"); /* 3 */
|
ui_out_table_header (uiout, 4, ui_left, "disp", "Disp"); /* 3 */
|
if (nr_printable_breakpoints > 0)
|
if (nr_printable_breakpoints > 0)
|
annotate_field (3);
|
annotate_field (3);
|
ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb"); /* 4 */
|
ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb"); /* 4 */
|
if (opts.addressprint)
|
if (opts.addressprint)
|
{
|
{
|
if (nr_printable_breakpoints > 0)
|
if (nr_printable_breakpoints > 0)
|
annotate_field (4);
|
annotate_field (4);
|
if (print_address_bits <= 32)
|
if (print_address_bits <= 32)
|
ui_out_table_header (uiout, 10, ui_left, "addr", "Address");/* 5 */
|
ui_out_table_header (uiout, 10, ui_left, "addr", "Address");/* 5 */
|
else
|
else
|
ui_out_table_header (uiout, 18, ui_left, "addr", "Address");/* 5 */
|
ui_out_table_header (uiout, 18, ui_left, "addr", "Address");/* 5 */
|
}
|
}
|
if (nr_printable_breakpoints > 0)
|
if (nr_printable_breakpoints > 0)
|
annotate_field (5);
|
annotate_field (5);
|
ui_out_table_header (uiout, 40, ui_noalign, "what", "What"); /* 6 */
|
ui_out_table_header (uiout, 40, ui_noalign, "what", "What"); /* 6 */
|
ui_out_table_body (uiout);
|
ui_out_table_body (uiout);
|
if (nr_printable_breakpoints > 0)
|
if (nr_printable_breakpoints > 0)
|
annotate_breakpoints_table ();
|
annotate_breakpoints_table ();
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (bnum == -1
|
if (bnum == -1
|
|| bnum == b->number)
|
|| bnum == b->number)
|
{
|
{
|
/* We only print out user settable breakpoints unless the
|
/* We only print out user settable breakpoints unless the
|
allflag is set. */
|
allflag is set. */
|
if (allflag || user_settable_breakpoint (b))
|
if (allflag || user_settable_breakpoint (b))
|
print_one_breakpoint (b, &last_loc, print_address_bits, allflag);
|
print_one_breakpoint (b, &last_loc, print_address_bits, allflag);
|
}
|
}
|
|
|
do_cleanups (bkpttbl_chain);
|
do_cleanups (bkpttbl_chain);
|
|
|
if (nr_printable_breakpoints == 0)
|
if (nr_printable_breakpoints == 0)
|
{
|
{
|
if (bnum == -1)
|
if (bnum == -1)
|
ui_out_message (uiout, 0, "No breakpoints or watchpoints.\n");
|
ui_out_message (uiout, 0, "No breakpoints or watchpoints.\n");
|
else
|
else
|
ui_out_message (uiout, 0, "No breakpoint or watchpoint number %d.\n",
|
ui_out_message (uiout, 0, "No breakpoint or watchpoint number %d.\n",
|
bnum);
|
bnum);
|
}
|
}
|
else
|
else
|
{
|
{
|
if (last_loc && !server_command)
|
if (last_loc && !server_command)
|
set_next_address (last_loc->gdbarch, last_loc->address);
|
set_next_address (last_loc->gdbarch, last_loc->address);
|
}
|
}
|
|
|
/* FIXME? Should this be moved up so that it is only called when
|
/* FIXME? Should this be moved up so that it is only called when
|
there have been breakpoints? */
|
there have been breakpoints? */
|
annotate_breakpoints_table_end ();
|
annotate_breakpoints_table_end ();
|
}
|
}
|
|
|
static void
|
static void
|
breakpoints_info (char *bnum_exp, int from_tty)
|
breakpoints_info (char *bnum_exp, int from_tty)
|
{
|
{
|
int bnum = -1;
|
int bnum = -1;
|
|
|
if (bnum_exp)
|
if (bnum_exp)
|
bnum = parse_and_eval_long (bnum_exp);
|
bnum = parse_and_eval_long (bnum_exp);
|
|
|
breakpoint_1 (bnum, 0);
|
breakpoint_1 (bnum, 0);
|
}
|
}
|
|
|
static void
|
static void
|
maintenance_info_breakpoints (char *bnum_exp, int from_tty)
|
maintenance_info_breakpoints (char *bnum_exp, int from_tty)
|
{
|
{
|
int bnum = -1;
|
int bnum = -1;
|
|
|
if (bnum_exp)
|
if (bnum_exp)
|
bnum = parse_and_eval_long (bnum_exp);
|
bnum = parse_and_eval_long (bnum_exp);
|
|
|
breakpoint_1 (bnum, 1);
|
breakpoint_1 (bnum, 1);
|
}
|
}
|
|
|
static int
|
static int
|
breakpoint_has_pc (struct breakpoint *b,
|
breakpoint_has_pc (struct breakpoint *b,
|
struct program_space *pspace,
|
struct program_space *pspace,
|
CORE_ADDR pc, struct obj_section *section)
|
CORE_ADDR pc, struct obj_section *section)
|
{
|
{
|
struct bp_location *bl = b->loc;
|
struct bp_location *bl = b->loc;
|
for (; bl; bl = bl->next)
|
for (; bl; bl = bl->next)
|
{
|
{
|
if (bl->pspace == pspace
|
if (bl->pspace == pspace
|
&& bl->address == pc
|
&& bl->address == pc
|
&& (!overlay_debugging || bl->section == section))
|
&& (!overlay_debugging || bl->section == section))
|
return 1;
|
return 1;
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Print a message describing any breakpoints set at PC. This
|
/* Print a message describing any breakpoints set at PC. This
|
concerns with logical breakpoints, so we match program spaces, not
|
concerns with logical breakpoints, so we match program spaces, not
|
address spaces. */
|
address spaces. */
|
|
|
static void
|
static void
|
describe_other_breakpoints (struct gdbarch *gdbarch,
|
describe_other_breakpoints (struct gdbarch *gdbarch,
|
struct program_space *pspace, CORE_ADDR pc,
|
struct program_space *pspace, CORE_ADDR pc,
|
struct obj_section *section, int thread)
|
struct obj_section *section, int thread)
|
{
|
{
|
int others = 0;
|
int others = 0;
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
others += breakpoint_has_pc (b, pspace, pc, section);
|
others += breakpoint_has_pc (b, pspace, pc, section);
|
if (others > 0)
|
if (others > 0)
|
{
|
{
|
if (others == 1)
|
if (others == 1)
|
printf_filtered (_("Note: breakpoint "));
|
printf_filtered (_("Note: breakpoint "));
|
else /* if (others == ???) */
|
else /* if (others == ???) */
|
printf_filtered (_("Note: breakpoints "));
|
printf_filtered (_("Note: breakpoints "));
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (breakpoint_has_pc (b, pspace, pc, section))
|
if (breakpoint_has_pc (b, pspace, pc, section))
|
{
|
{
|
others--;
|
others--;
|
printf_filtered ("%d", b->number);
|
printf_filtered ("%d", b->number);
|
if (b->thread == -1 && thread != -1)
|
if (b->thread == -1 && thread != -1)
|
printf_filtered (" (all threads)");
|
printf_filtered (" (all threads)");
|
else if (b->thread != -1)
|
else if (b->thread != -1)
|
printf_filtered (" (thread %d)", b->thread);
|
printf_filtered (" (thread %d)", b->thread);
|
printf_filtered ("%s%s ",
|
printf_filtered ("%s%s ",
|
((b->enable_state == bp_disabled
|
((b->enable_state == bp_disabled
|
|| b->enable_state == bp_call_disabled
|
|| b->enable_state == bp_call_disabled
|
|| b->enable_state == bp_startup_disabled)
|
|| b->enable_state == bp_startup_disabled)
|
? " (disabled)"
|
? " (disabled)"
|
: b->enable_state == bp_permanent
|
: b->enable_state == bp_permanent
|
? " (permanent)"
|
? " (permanent)"
|
: ""),
|
: ""),
|
(others > 1) ? ","
|
(others > 1) ? ","
|
: ((others == 1) ? " and" : ""));
|
: ((others == 1) ? " and" : ""));
|
}
|
}
|
printf_filtered (_("also set at pc "));
|
printf_filtered (_("also set at pc "));
|
fputs_filtered (paddress (gdbarch, pc), gdb_stdout);
|
fputs_filtered (paddress (gdbarch, pc), gdb_stdout);
|
printf_filtered (".\n");
|
printf_filtered (".\n");
|
}
|
}
|
}
|
}
|
|
|
/* Set the default place to put a breakpoint
|
/* Set the default place to put a breakpoint
|
for the `break' command with no arguments. */
|
for the `break' command with no arguments. */
|
|
|
void
|
void
|
set_default_breakpoint (int valid, struct program_space *pspace,
|
set_default_breakpoint (int valid, struct program_space *pspace,
|
CORE_ADDR addr, struct symtab *symtab,
|
CORE_ADDR addr, struct symtab *symtab,
|
int line)
|
int line)
|
{
|
{
|
default_breakpoint_valid = valid;
|
default_breakpoint_valid = valid;
|
default_breakpoint_pspace = pspace;
|
default_breakpoint_pspace = pspace;
|
default_breakpoint_address = addr;
|
default_breakpoint_address = addr;
|
default_breakpoint_symtab = symtab;
|
default_breakpoint_symtab = symtab;
|
default_breakpoint_line = line;
|
default_breakpoint_line = line;
|
}
|
}
|
|
|
/* Return true iff it is meaningful to use the address member of
|
/* Return true iff it is meaningful to use the address member of
|
BPT. For some breakpoint types, the address member is irrelevant
|
BPT. For some breakpoint types, the address member is irrelevant
|
and it makes no sense to attempt to compare it to other addresses
|
and it makes no sense to attempt to compare it to other addresses
|
(or use it for any other purpose either).
|
(or use it for any other purpose either).
|
|
|
More specifically, each of the following breakpoint types will always
|
More specifically, each of the following breakpoint types will always
|
have a zero valued address and we don't want to mark breakpoints of any of
|
have a zero valued address and we don't want to mark breakpoints of any of
|
these types to be a duplicate of an actual breakpoint at address zero:
|
these types to be a duplicate of an actual breakpoint at address zero:
|
|
|
bp_watchpoint
|
bp_watchpoint
|
bp_catchpoint
|
bp_catchpoint
|
|
|
*/
|
*/
|
|
|
static int
|
static int
|
breakpoint_address_is_meaningful (struct breakpoint *bpt)
|
breakpoint_address_is_meaningful (struct breakpoint *bpt)
|
{
|
{
|
enum bptype type = bpt->type;
|
enum bptype type = bpt->type;
|
|
|
return (type != bp_watchpoint && type != bp_catchpoint);
|
return (type != bp_watchpoint && type != bp_catchpoint);
|
}
|
}
|
|
|
/* Assuming LOC1 and LOC2's owners are hardware watchpoints, returns
|
/* Assuming LOC1 and LOC2's owners are hardware watchpoints, returns
|
true if LOC1 and LOC2 represent the same watchpoint location. */
|
true if LOC1 and LOC2 represent the same watchpoint location. */
|
|
|
static int
|
static int
|
watchpoint_locations_match (struct bp_location *loc1, struct bp_location *loc2)
|
watchpoint_locations_match (struct bp_location *loc1, struct bp_location *loc2)
|
{
|
{
|
return (loc1->owner->type == loc2->owner->type
|
return (loc1->owner->type == loc2->owner->type
|
&& loc1->pspace->aspace == loc2->pspace->aspace
|
&& loc1->pspace->aspace == loc2->pspace->aspace
|
&& loc1->address == loc2->address
|
&& loc1->address == loc2->address
|
&& loc1->length == loc2->length);
|
&& loc1->length == loc2->length);
|
}
|
}
|
|
|
/* Returns true if {ASPACE1,ADDR1} and {ASPACE2,ADDR2} represent the
|
/* Returns true if {ASPACE1,ADDR1} and {ASPACE2,ADDR2} represent the
|
same breakpoint location. In most targets, this can only be true
|
same breakpoint location. In most targets, this can only be true
|
if ASPACE1 matches ASPACE2. On targets that have global
|
if ASPACE1 matches ASPACE2. On targets that have global
|
breakpoints, the address space doesn't really matter. */
|
breakpoints, the address space doesn't really matter. */
|
|
|
static int
|
static int
|
breakpoint_address_match (struct address_space *aspace1, CORE_ADDR addr1,
|
breakpoint_address_match (struct address_space *aspace1, CORE_ADDR addr1,
|
struct address_space *aspace2, CORE_ADDR addr2)
|
struct address_space *aspace2, CORE_ADDR addr2)
|
{
|
{
|
return ((gdbarch_has_global_breakpoints (target_gdbarch)
|
return ((gdbarch_has_global_breakpoints (target_gdbarch)
|
|| aspace1 == aspace2)
|
|| aspace1 == aspace2)
|
&& addr1 == addr2);
|
&& addr1 == addr2);
|
}
|
}
|
|
|
/* Assuming LOC1 and LOC2's types' have meaningful target addresses
|
/* Assuming LOC1 and LOC2's types' have meaningful target addresses
|
(breakpoint_address_is_meaningful), returns true if LOC1 and LOC2
|
(breakpoint_address_is_meaningful), returns true if LOC1 and LOC2
|
represent the same location. */
|
represent the same location. */
|
|
|
static int
|
static int
|
breakpoint_locations_match (struct bp_location *loc1, struct bp_location *loc2)
|
breakpoint_locations_match (struct bp_location *loc1, struct bp_location *loc2)
|
{
|
{
|
int hw_point1 = is_hardware_watchpoint (loc1->owner);
|
int hw_point1 = is_hardware_watchpoint (loc1->owner);
|
int hw_point2 = is_hardware_watchpoint (loc2->owner);
|
int hw_point2 = is_hardware_watchpoint (loc2->owner);
|
|
|
if (hw_point1 != hw_point2)
|
if (hw_point1 != hw_point2)
|
return 0;
|
return 0;
|
else if (hw_point1)
|
else if (hw_point1)
|
return watchpoint_locations_match (loc1, loc2);
|
return watchpoint_locations_match (loc1, loc2);
|
else
|
else
|
return breakpoint_address_match (loc1->pspace->aspace, loc1->address,
|
return breakpoint_address_match (loc1->pspace->aspace, loc1->address,
|
loc2->pspace->aspace, loc2->address);
|
loc2->pspace->aspace, loc2->address);
|
}
|
}
|
|
|
static void
|
static void
|
breakpoint_adjustment_warning (CORE_ADDR from_addr, CORE_ADDR to_addr,
|
breakpoint_adjustment_warning (CORE_ADDR from_addr, CORE_ADDR to_addr,
|
int bnum, int have_bnum)
|
int bnum, int have_bnum)
|
{
|
{
|
char astr1[40];
|
char astr1[40];
|
char astr2[40];
|
char astr2[40];
|
|
|
strcpy (astr1, hex_string_custom ((unsigned long) from_addr, 8));
|
strcpy (astr1, hex_string_custom ((unsigned long) from_addr, 8));
|
strcpy (astr2, hex_string_custom ((unsigned long) to_addr, 8));
|
strcpy (astr2, hex_string_custom ((unsigned long) to_addr, 8));
|
if (have_bnum)
|
if (have_bnum)
|
warning (_("Breakpoint %d address previously adjusted from %s to %s."),
|
warning (_("Breakpoint %d address previously adjusted from %s to %s."),
|
bnum, astr1, astr2);
|
bnum, astr1, astr2);
|
else
|
else
|
warning (_("Breakpoint address adjusted from %s to %s."), astr1, astr2);
|
warning (_("Breakpoint address adjusted from %s to %s."), astr1, astr2);
|
}
|
}
|
|
|
/* Adjust a breakpoint's address to account for architectural constraints
|
/* Adjust a breakpoint's address to account for architectural constraints
|
on breakpoint placement. Return the adjusted address. Note: Very
|
on breakpoint placement. Return the adjusted address. Note: Very
|
few targets require this kind of adjustment. For most targets,
|
few targets require this kind of adjustment. For most targets,
|
this function is simply the identity function. */
|
this function is simply the identity function. */
|
|
|
static CORE_ADDR
|
static CORE_ADDR
|
adjust_breakpoint_address (struct gdbarch *gdbarch,
|
adjust_breakpoint_address (struct gdbarch *gdbarch,
|
CORE_ADDR bpaddr, enum bptype bptype)
|
CORE_ADDR bpaddr, enum bptype bptype)
|
{
|
{
|
if (!gdbarch_adjust_breakpoint_address_p (gdbarch))
|
if (!gdbarch_adjust_breakpoint_address_p (gdbarch))
|
{
|
{
|
/* Very few targets need any kind of breakpoint adjustment. */
|
/* Very few targets need any kind of breakpoint adjustment. */
|
return bpaddr;
|
return bpaddr;
|
}
|
}
|
else if (bptype == bp_watchpoint
|
else if (bptype == bp_watchpoint
|
|| bptype == bp_hardware_watchpoint
|
|| bptype == bp_hardware_watchpoint
|
|| bptype == bp_read_watchpoint
|
|| bptype == bp_read_watchpoint
|
|| bptype == bp_access_watchpoint
|
|| bptype == bp_access_watchpoint
|
|| bptype == bp_catchpoint)
|
|| bptype == bp_catchpoint)
|
{
|
{
|
/* Watchpoints and the various bp_catch_* eventpoints should not
|
/* Watchpoints and the various bp_catch_* eventpoints should not
|
have their addresses modified. */
|
have their addresses modified. */
|
return bpaddr;
|
return bpaddr;
|
}
|
}
|
else
|
else
|
{
|
{
|
CORE_ADDR adjusted_bpaddr;
|
CORE_ADDR adjusted_bpaddr;
|
|
|
/* Some targets have architectural constraints on the placement
|
/* Some targets have architectural constraints on the placement
|
of breakpoint instructions. Obtain the adjusted address. */
|
of breakpoint instructions. Obtain the adjusted address. */
|
adjusted_bpaddr = gdbarch_adjust_breakpoint_address (gdbarch, bpaddr);
|
adjusted_bpaddr = gdbarch_adjust_breakpoint_address (gdbarch, bpaddr);
|
|
|
/* An adjusted breakpoint address can significantly alter
|
/* An adjusted breakpoint address can significantly alter
|
a user's expectations. Print a warning if an adjustment
|
a user's expectations. Print a warning if an adjustment
|
is required. */
|
is required. */
|
if (adjusted_bpaddr != bpaddr)
|
if (adjusted_bpaddr != bpaddr)
|
breakpoint_adjustment_warning (bpaddr, adjusted_bpaddr, 0, 0);
|
breakpoint_adjustment_warning (bpaddr, adjusted_bpaddr, 0, 0);
|
|
|
return adjusted_bpaddr;
|
return adjusted_bpaddr;
|
}
|
}
|
}
|
}
|
|
|
/* Allocate a struct bp_location. */
|
/* Allocate a struct bp_location. */
|
|
|
static struct bp_location *
|
static struct bp_location *
|
allocate_bp_location (struct breakpoint *bpt)
|
allocate_bp_location (struct breakpoint *bpt)
|
{
|
{
|
struct bp_location *loc, *loc_p;
|
struct bp_location *loc, *loc_p;
|
|
|
loc = xmalloc (sizeof (struct bp_location));
|
loc = xmalloc (sizeof (struct bp_location));
|
memset (loc, 0, sizeof (*loc));
|
memset (loc, 0, sizeof (*loc));
|
|
|
loc->owner = bpt;
|
loc->owner = bpt;
|
loc->cond = NULL;
|
loc->cond = NULL;
|
loc->shlib_disabled = 0;
|
loc->shlib_disabled = 0;
|
loc->enabled = 1;
|
loc->enabled = 1;
|
|
|
switch (bpt->type)
|
switch (bpt->type)
|
{
|
{
|
case bp_breakpoint:
|
case bp_breakpoint:
|
case bp_until:
|
case bp_until:
|
case bp_finish:
|
case bp_finish:
|
case bp_longjmp:
|
case bp_longjmp:
|
case bp_longjmp_resume:
|
case bp_longjmp_resume:
|
case bp_step_resume:
|
case bp_step_resume:
|
case bp_watchpoint_scope:
|
case bp_watchpoint_scope:
|
case bp_call_dummy:
|
case bp_call_dummy:
|
case bp_shlib_event:
|
case bp_shlib_event:
|
case bp_thread_event:
|
case bp_thread_event:
|
case bp_overlay_event:
|
case bp_overlay_event:
|
case bp_jit_event:
|
case bp_jit_event:
|
case bp_longjmp_master:
|
case bp_longjmp_master:
|
loc->loc_type = bp_loc_software_breakpoint;
|
loc->loc_type = bp_loc_software_breakpoint;
|
break;
|
break;
|
case bp_hardware_breakpoint:
|
case bp_hardware_breakpoint:
|
loc->loc_type = bp_loc_hardware_breakpoint;
|
loc->loc_type = bp_loc_hardware_breakpoint;
|
break;
|
break;
|
case bp_hardware_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_read_watchpoint:
|
case bp_read_watchpoint:
|
case bp_access_watchpoint:
|
case bp_access_watchpoint:
|
loc->loc_type = bp_loc_hardware_watchpoint;
|
loc->loc_type = bp_loc_hardware_watchpoint;
|
break;
|
break;
|
case bp_watchpoint:
|
case bp_watchpoint:
|
case bp_catchpoint:
|
case bp_catchpoint:
|
case bp_tracepoint:
|
case bp_tracepoint:
|
case bp_fast_tracepoint:
|
case bp_fast_tracepoint:
|
loc->loc_type = bp_loc_other;
|
loc->loc_type = bp_loc_other;
|
break;
|
break;
|
default:
|
default:
|
internal_error (__FILE__, __LINE__, _("unknown breakpoint type"));
|
internal_error (__FILE__, __LINE__, _("unknown breakpoint type"));
|
}
|
}
|
|
|
return loc;
|
return loc;
|
}
|
}
|
|
|
static void free_bp_location (struct bp_location *loc)
|
static void free_bp_location (struct bp_location *loc)
|
{
|
{
|
if (loc->cond)
|
if (loc->cond)
|
xfree (loc->cond);
|
xfree (loc->cond);
|
|
|
if (loc->function_name)
|
if (loc->function_name)
|
xfree (loc->function_name);
|
xfree (loc->function_name);
|
|
|
xfree (loc);
|
xfree (loc);
|
}
|
}
|
|
|
/* Helper to set_raw_breakpoint below. Creates a breakpoint
|
/* Helper to set_raw_breakpoint below. Creates a breakpoint
|
that has type BPTYPE and has no locations as yet. */
|
that has type BPTYPE and has no locations as yet. */
|
/* This function is used in gdbtk sources and thus can not be made static. */
|
/* This function is used in gdbtk sources and thus can not be made static. */
|
|
|
static struct breakpoint *
|
static struct breakpoint *
|
set_raw_breakpoint_without_location (struct gdbarch *gdbarch,
|
set_raw_breakpoint_without_location (struct gdbarch *gdbarch,
|
enum bptype bptype)
|
enum bptype bptype)
|
{
|
{
|
struct breakpoint *b, *b1;
|
struct breakpoint *b, *b1;
|
|
|
b = (struct breakpoint *) xmalloc (sizeof (struct breakpoint));
|
b = (struct breakpoint *) xmalloc (sizeof (struct breakpoint));
|
memset (b, 0, sizeof (*b));
|
memset (b, 0, sizeof (*b));
|
|
|
b->type = bptype;
|
b->type = bptype;
|
b->gdbarch = gdbarch;
|
b->gdbarch = gdbarch;
|
b->language = current_language->la_language;
|
b->language = current_language->la_language;
|
b->input_radix = input_radix;
|
b->input_radix = input_radix;
|
b->thread = -1;
|
b->thread = -1;
|
b->enable_state = bp_enabled;
|
b->enable_state = bp_enabled;
|
b->next = 0;
|
b->next = 0;
|
b->silent = 0;
|
b->silent = 0;
|
b->ignore_count = 0;
|
b->ignore_count = 0;
|
b->commands = NULL;
|
b->commands = NULL;
|
b->frame_id = null_frame_id;
|
b->frame_id = null_frame_id;
|
b->forked_inferior_pid = null_ptid;
|
b->forked_inferior_pid = null_ptid;
|
b->exec_pathname = NULL;
|
b->exec_pathname = NULL;
|
b->syscalls_to_be_caught = NULL;
|
b->syscalls_to_be_caught = NULL;
|
b->ops = NULL;
|
b->ops = NULL;
|
b->condition_not_parsed = 0;
|
b->condition_not_parsed = 0;
|
|
|
/* Add this breakpoint to the end of the chain
|
/* Add this breakpoint to the end of the chain
|
so that a list of breakpoints will come out in order
|
so that a list of breakpoints will come out in order
|
of increasing numbers. */
|
of increasing numbers. */
|
|
|
b1 = breakpoint_chain;
|
b1 = breakpoint_chain;
|
if (b1 == 0)
|
if (b1 == 0)
|
breakpoint_chain = b;
|
breakpoint_chain = b;
|
else
|
else
|
{
|
{
|
while (b1->next)
|
while (b1->next)
|
b1 = b1->next;
|
b1 = b1->next;
|
b1->next = b;
|
b1->next = b;
|
}
|
}
|
return b;
|
return b;
|
}
|
}
|
|
|
/* Initialize loc->function_name. */
|
/* Initialize loc->function_name. */
|
static void
|
static void
|
set_breakpoint_location_function (struct bp_location *loc)
|
set_breakpoint_location_function (struct bp_location *loc)
|
{
|
{
|
if (loc->owner->type == bp_breakpoint
|
if (loc->owner->type == bp_breakpoint
|
|| loc->owner->type == bp_hardware_breakpoint
|
|| loc->owner->type == bp_hardware_breakpoint
|
|| tracepoint_type (loc->owner))
|
|| tracepoint_type (loc->owner))
|
{
|
{
|
find_pc_partial_function (loc->address, &(loc->function_name),
|
find_pc_partial_function (loc->address, &(loc->function_name),
|
NULL, NULL);
|
NULL, NULL);
|
if (loc->function_name)
|
if (loc->function_name)
|
loc->function_name = xstrdup (loc->function_name);
|
loc->function_name = xstrdup (loc->function_name);
|
}
|
}
|
}
|
}
|
|
|
/* Attempt to determine architecture of location identified by SAL. */
|
/* Attempt to determine architecture of location identified by SAL. */
|
static struct gdbarch *
|
static struct gdbarch *
|
get_sal_arch (struct symtab_and_line sal)
|
get_sal_arch (struct symtab_and_line sal)
|
{
|
{
|
if (sal.section)
|
if (sal.section)
|
return get_objfile_arch (sal.section->objfile);
|
return get_objfile_arch (sal.section->objfile);
|
if (sal.symtab)
|
if (sal.symtab)
|
return get_objfile_arch (sal.symtab->objfile);
|
return get_objfile_arch (sal.symtab->objfile);
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* set_raw_breakpoint is a low level routine for allocating and
|
/* set_raw_breakpoint is a low level routine for allocating and
|
partially initializing a breakpoint of type BPTYPE. The newly
|
partially initializing a breakpoint of type BPTYPE. The newly
|
created breakpoint's address, section, source file name, and line
|
created breakpoint's address, section, source file name, and line
|
number are provided by SAL. The newly created and partially
|
number are provided by SAL. The newly created and partially
|
initialized breakpoint is added to the breakpoint chain and
|
initialized breakpoint is added to the breakpoint chain and
|
is also returned as the value of this function.
|
is also returned as the value of this function.
|
|
|
It is expected that the caller will complete the initialization of
|
It is expected that the caller will complete the initialization of
|
the newly created breakpoint struct as well as output any status
|
the newly created breakpoint struct as well as output any status
|
information regarding the creation of a new breakpoint. In
|
information regarding the creation of a new breakpoint. In
|
particular, set_raw_breakpoint does NOT set the breakpoint
|
particular, set_raw_breakpoint does NOT set the breakpoint
|
number! Care should be taken to not allow an error to occur
|
number! Care should be taken to not allow an error to occur
|
prior to completing the initialization of the breakpoint. If this
|
prior to completing the initialization of the breakpoint. If this
|
should happen, a bogus breakpoint will be left on the chain. */
|
should happen, a bogus breakpoint will be left on the chain. */
|
|
|
struct breakpoint *
|
struct breakpoint *
|
set_raw_breakpoint (struct gdbarch *gdbarch,
|
set_raw_breakpoint (struct gdbarch *gdbarch,
|
struct symtab_and_line sal, enum bptype bptype)
|
struct symtab_and_line sal, enum bptype bptype)
|
{
|
{
|
struct breakpoint *b = set_raw_breakpoint_without_location (gdbarch, bptype);
|
struct breakpoint *b = set_raw_breakpoint_without_location (gdbarch, bptype);
|
CORE_ADDR adjusted_address;
|
CORE_ADDR adjusted_address;
|
struct gdbarch *loc_gdbarch;
|
struct gdbarch *loc_gdbarch;
|
|
|
loc_gdbarch = get_sal_arch (sal);
|
loc_gdbarch = get_sal_arch (sal);
|
if (!loc_gdbarch)
|
if (!loc_gdbarch)
|
loc_gdbarch = b->gdbarch;
|
loc_gdbarch = b->gdbarch;
|
|
|
if (bptype != bp_catchpoint)
|
if (bptype != bp_catchpoint)
|
gdb_assert (sal.pspace != NULL);
|
gdb_assert (sal.pspace != NULL);
|
|
|
/* Adjust the breakpoint's address prior to allocating a location.
|
/* Adjust the breakpoint's address prior to allocating a location.
|
Once we call allocate_bp_location(), that mostly uninitialized
|
Once we call allocate_bp_location(), that mostly uninitialized
|
location will be placed on the location chain. Adjustment of the
|
location will be placed on the location chain. Adjustment of the
|
breakpoint may cause target_read_memory() to be called and we do
|
breakpoint may cause target_read_memory() to be called and we do
|
not want its scan of the location chain to find a breakpoint and
|
not want its scan of the location chain to find a breakpoint and
|
location that's only been partially initialized. */
|
location that's only been partially initialized. */
|
adjusted_address = adjust_breakpoint_address (loc_gdbarch, sal.pc, b->type);
|
adjusted_address = adjust_breakpoint_address (loc_gdbarch, sal.pc, b->type);
|
|
|
b->loc = allocate_bp_location (b);
|
b->loc = allocate_bp_location (b);
|
b->loc->gdbarch = loc_gdbarch;
|
b->loc->gdbarch = loc_gdbarch;
|
b->loc->requested_address = sal.pc;
|
b->loc->requested_address = sal.pc;
|
b->loc->address = adjusted_address;
|
b->loc->address = adjusted_address;
|
b->loc->pspace = sal.pspace;
|
b->loc->pspace = sal.pspace;
|
|
|
/* Store the program space that was used to set the breakpoint, for
|
/* Store the program space that was used to set the breakpoint, for
|
breakpoint resetting. */
|
breakpoint resetting. */
|
b->pspace = sal.pspace;
|
b->pspace = sal.pspace;
|
|
|
if (sal.symtab == NULL)
|
if (sal.symtab == NULL)
|
b->source_file = NULL;
|
b->source_file = NULL;
|
else
|
else
|
b->source_file = xstrdup (sal.symtab->filename);
|
b->source_file = xstrdup (sal.symtab->filename);
|
b->loc->section = sal.section;
|
b->loc->section = sal.section;
|
b->line_number = sal.line;
|
b->line_number = sal.line;
|
|
|
set_breakpoint_location_function (b->loc);
|
set_breakpoint_location_function (b->loc);
|
|
|
breakpoints_changed ();
|
breakpoints_changed ();
|
|
|
return b;
|
return b;
|
}
|
}
|
|
|
|
|
/* Note that the breakpoint object B describes a permanent breakpoint
|
/* Note that the breakpoint object B describes a permanent breakpoint
|
instruction, hard-wired into the inferior's code. */
|
instruction, hard-wired into the inferior's code. */
|
void
|
void
|
make_breakpoint_permanent (struct breakpoint *b)
|
make_breakpoint_permanent (struct breakpoint *b)
|
{
|
{
|
struct bp_location *bl;
|
struct bp_location *bl;
|
b->enable_state = bp_permanent;
|
b->enable_state = bp_permanent;
|
|
|
/* By definition, permanent breakpoints are already present in the code.
|
/* By definition, permanent breakpoints are already present in the code.
|
Mark all locations as inserted. For now, make_breakpoint_permanent
|
Mark all locations as inserted. For now, make_breakpoint_permanent
|
is called in just one place, so it's hard to say if it's reasonable
|
is called in just one place, so it's hard to say if it's reasonable
|
to have permanent breakpoint with multiple locations or not,
|
to have permanent breakpoint with multiple locations or not,
|
but it's easy to implmement. */
|
but it's easy to implmement. */
|
for (bl = b->loc; bl; bl = bl->next)
|
for (bl = b->loc; bl; bl = bl->next)
|
bl->inserted = 1;
|
bl->inserted = 1;
|
}
|
}
|
|
|
/* Call this routine when stepping and nexting to enable a breakpoint
|
/* Call this routine when stepping and nexting to enable a breakpoint
|
if we do a longjmp() in THREAD. When we hit that breakpoint, call
|
if we do a longjmp() in THREAD. When we hit that breakpoint, call
|
set_longjmp_resume_breakpoint() to figure out where we are going. */
|
set_longjmp_resume_breakpoint() to figure out where we are going. */
|
|
|
void
|
void
|
set_longjmp_breakpoint (int thread)
|
set_longjmp_breakpoint (int thread)
|
{
|
{
|
struct breakpoint *b, *temp;
|
struct breakpoint *b, *temp;
|
|
|
/* To avoid having to rescan all objfile symbols at every step,
|
/* To avoid having to rescan all objfile symbols at every step,
|
we maintain a list of continually-inserted but always disabled
|
we maintain a list of continually-inserted but always disabled
|
longjmp "master" breakpoints. Here, we simply create momentary
|
longjmp "master" breakpoints. Here, we simply create momentary
|
clones of those and enable them for the requested thread. */
|
clones of those and enable them for the requested thread. */
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
if (b->pspace == current_program_space
|
if (b->pspace == current_program_space
|
&& b->type == bp_longjmp_master)
|
&& b->type == bp_longjmp_master)
|
{
|
{
|
struct breakpoint *clone = clone_momentary_breakpoint (b);
|
struct breakpoint *clone = clone_momentary_breakpoint (b);
|
clone->type = bp_longjmp;
|
clone->type = bp_longjmp;
|
clone->thread = thread;
|
clone->thread = thread;
|
}
|
}
|
}
|
}
|
|
|
/* Delete all longjmp breakpoints from THREAD. */
|
/* Delete all longjmp breakpoints from THREAD. */
|
void
|
void
|
delete_longjmp_breakpoint (int thread)
|
delete_longjmp_breakpoint (int thread)
|
{
|
{
|
struct breakpoint *b, *temp;
|
struct breakpoint *b, *temp;
|
|
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
if (b->type == bp_longjmp)
|
if (b->type == bp_longjmp)
|
{
|
{
|
if (b->thread == thread)
|
if (b->thread == thread)
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
}
|
}
|
}
|
}
|
|
|
void
|
void
|
enable_overlay_breakpoints (void)
|
enable_overlay_breakpoints (void)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->type == bp_overlay_event)
|
if (b->type == bp_overlay_event)
|
{
|
{
|
b->enable_state = bp_enabled;
|
b->enable_state = bp_enabled;
|
update_global_location_list (1);
|
update_global_location_list (1);
|
overlay_events_enabled = 1;
|
overlay_events_enabled = 1;
|
}
|
}
|
}
|
}
|
|
|
void
|
void
|
disable_overlay_breakpoints (void)
|
disable_overlay_breakpoints (void)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->type == bp_overlay_event)
|
if (b->type == bp_overlay_event)
|
{
|
{
|
b->enable_state = bp_disabled;
|
b->enable_state = bp_disabled;
|
update_global_location_list (0);
|
update_global_location_list (0);
|
overlay_events_enabled = 0;
|
overlay_events_enabled = 0;
|
}
|
}
|
}
|
}
|
|
|
struct breakpoint *
|
struct breakpoint *
|
create_thread_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address)
|
create_thread_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
b = create_internal_breakpoint (gdbarch, address, bp_thread_event);
|
b = create_internal_breakpoint (gdbarch, address, bp_thread_event);
|
|
|
b->enable_state = bp_enabled;
|
b->enable_state = bp_enabled;
|
/* addr_string has to be used or breakpoint_re_set will delete me. */
|
/* addr_string has to be used or breakpoint_re_set will delete me. */
|
b->addr_string
|
b->addr_string
|
= xstrprintf ("*%s", paddress (b->loc->gdbarch, b->loc->address));
|
= xstrprintf ("*%s", paddress (b->loc->gdbarch, b->loc->address));
|
|
|
update_global_location_list_nothrow (1);
|
update_global_location_list_nothrow (1);
|
|
|
return b;
|
return b;
|
}
|
}
|
|
|
void
|
void
|
remove_thread_event_breakpoints (void)
|
remove_thread_event_breakpoints (void)
|
{
|
{
|
struct breakpoint *b, *temp;
|
struct breakpoint *b, *temp;
|
|
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
if (b->type == bp_thread_event
|
if (b->type == bp_thread_event
|
&& b->loc->pspace == current_program_space)
|
&& b->loc->pspace == current_program_space)
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
}
|
}
|
|
|
struct captured_parse_breakpoint_args
|
struct captured_parse_breakpoint_args
|
{
|
{
|
char **arg_p;
|
char **arg_p;
|
struct symtabs_and_lines *sals_p;
|
struct symtabs_and_lines *sals_p;
|
char ***addr_string_p;
|
char ***addr_string_p;
|
int *not_found_ptr;
|
int *not_found_ptr;
|
};
|
};
|
|
|
struct lang_and_radix
|
struct lang_and_radix
|
{
|
{
|
enum language lang;
|
enum language lang;
|
int radix;
|
int radix;
|
};
|
};
|
|
|
/* Create a breakpoint for JIT code registration and unregistration. */
|
/* Create a breakpoint for JIT code registration and unregistration. */
|
|
|
struct breakpoint *
|
struct breakpoint *
|
create_jit_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address)
|
create_jit_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
b = create_internal_breakpoint (gdbarch, address, bp_jit_event);
|
b = create_internal_breakpoint (gdbarch, address, bp_jit_event);
|
update_global_location_list_nothrow (1);
|
update_global_location_list_nothrow (1);
|
return b;
|
return b;
|
}
|
}
|
|
|
void
|
void
|
remove_solib_event_breakpoints (void)
|
remove_solib_event_breakpoints (void)
|
{
|
{
|
struct breakpoint *b, *temp;
|
struct breakpoint *b, *temp;
|
|
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
if (b->type == bp_shlib_event
|
if (b->type == bp_shlib_event
|
&& b->loc->pspace == current_program_space)
|
&& b->loc->pspace == current_program_space)
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
}
|
}
|
|
|
struct breakpoint *
|
struct breakpoint *
|
create_solib_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address)
|
create_solib_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
b = create_internal_breakpoint (gdbarch, address, bp_shlib_event);
|
b = create_internal_breakpoint (gdbarch, address, bp_shlib_event);
|
update_global_location_list_nothrow (1);
|
update_global_location_list_nothrow (1);
|
return b;
|
return b;
|
}
|
}
|
|
|
/* Disable any breakpoints that are on code in shared libraries. Only
|
/* Disable any breakpoints that are on code in shared libraries. Only
|
apply to enabled breakpoints, disabled ones can just stay disabled. */
|
apply to enabled breakpoints, disabled ones can just stay disabled. */
|
|
|
void
|
void
|
disable_breakpoints_in_shlibs (void)
|
disable_breakpoints_in_shlibs (void)
|
{
|
{
|
struct bp_location *loc, **locp_tmp;
|
struct bp_location *loc, **locp_tmp;
|
|
|
ALL_BP_LOCATIONS (loc, locp_tmp)
|
ALL_BP_LOCATIONS (loc, locp_tmp)
|
{
|
{
|
struct breakpoint *b = loc->owner;
|
struct breakpoint *b = loc->owner;
|
/* We apply the check to all breakpoints, including disabled
|
/* We apply the check to all breakpoints, including disabled
|
for those with loc->duplicate set. This is so that when breakpoint
|
for those with loc->duplicate set. This is so that when breakpoint
|
becomes enabled, or the duplicate is removed, gdb will try to insert
|
becomes enabled, or the duplicate is removed, gdb will try to insert
|
all breakpoints. If we don't set shlib_disabled here, we'll try
|
all breakpoints. If we don't set shlib_disabled here, we'll try
|
to insert those breakpoints and fail. */
|
to insert those breakpoints and fail. */
|
if (((b->type == bp_breakpoint)
|
if (((b->type == bp_breakpoint)
|
|| (b->type == bp_hardware_breakpoint)
|
|| (b->type == bp_hardware_breakpoint)
|
|| (tracepoint_type (b)))
|
|| (tracepoint_type (b)))
|
&& loc->pspace == current_program_space
|
&& loc->pspace == current_program_space
|
&& !loc->shlib_disabled
|
&& !loc->shlib_disabled
|
#ifdef PC_SOLIB
|
#ifdef PC_SOLIB
|
&& PC_SOLIB (loc->address)
|
&& PC_SOLIB (loc->address)
|
#else
|
#else
|
&& solib_name_from_address (loc->pspace, loc->address)
|
&& solib_name_from_address (loc->pspace, loc->address)
|
#endif
|
#endif
|
)
|
)
|
{
|
{
|
loc->shlib_disabled = 1;
|
loc->shlib_disabled = 1;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Disable any breakpoints that are in in an unloaded shared library. Only
|
/* Disable any breakpoints that are in in an unloaded shared library. Only
|
apply to enabled breakpoints, disabled ones can just stay disabled. */
|
apply to enabled breakpoints, disabled ones can just stay disabled. */
|
|
|
static void
|
static void
|
disable_breakpoints_in_unloaded_shlib (struct so_list *solib)
|
disable_breakpoints_in_unloaded_shlib (struct so_list *solib)
|
{
|
{
|
struct bp_location *loc, **locp_tmp;
|
struct bp_location *loc, **locp_tmp;
|
int disabled_shlib_breaks = 0;
|
int disabled_shlib_breaks = 0;
|
|
|
/* SunOS a.out shared libraries are always mapped, so do not
|
/* SunOS a.out shared libraries are always mapped, so do not
|
disable breakpoints; they will only be reported as unloaded
|
disable breakpoints; they will only be reported as unloaded
|
through clear_solib when GDB discards its shared library
|
through clear_solib when GDB discards its shared library
|
list. See clear_solib for more information. */
|
list. See clear_solib for more information. */
|
if (exec_bfd != NULL
|
if (exec_bfd != NULL
|
&& bfd_get_flavour (exec_bfd) == bfd_target_aout_flavour)
|
&& bfd_get_flavour (exec_bfd) == bfd_target_aout_flavour)
|
return;
|
return;
|
|
|
ALL_BP_LOCATIONS (loc, locp_tmp)
|
ALL_BP_LOCATIONS (loc, locp_tmp)
|
{
|
{
|
struct breakpoint *b = loc->owner;
|
struct breakpoint *b = loc->owner;
|
if ((loc->loc_type == bp_loc_hardware_breakpoint
|
if ((loc->loc_type == bp_loc_hardware_breakpoint
|
|| loc->loc_type == bp_loc_software_breakpoint)
|
|| loc->loc_type == bp_loc_software_breakpoint)
|
&& solib->pspace == loc->pspace
|
&& solib->pspace == loc->pspace
|
&& !loc->shlib_disabled
|
&& !loc->shlib_disabled
|
&& (b->type == bp_breakpoint || b->type == bp_hardware_breakpoint)
|
&& (b->type == bp_breakpoint || b->type == bp_hardware_breakpoint)
|
&& solib_contains_address_p (solib, loc->address))
|
&& solib_contains_address_p (solib, loc->address))
|
{
|
{
|
loc->shlib_disabled = 1;
|
loc->shlib_disabled = 1;
|
/* At this point, we cannot rely on remove_breakpoint
|
/* At this point, we cannot rely on remove_breakpoint
|
succeeding so we must mark the breakpoint as not inserted
|
succeeding so we must mark the breakpoint as not inserted
|
to prevent future errors occurring in remove_breakpoints. */
|
to prevent future errors occurring in remove_breakpoints. */
|
loc->inserted = 0;
|
loc->inserted = 0;
|
if (!disabled_shlib_breaks)
|
if (!disabled_shlib_breaks)
|
{
|
{
|
target_terminal_ours_for_output ();
|
target_terminal_ours_for_output ();
|
warning (_("Temporarily disabling breakpoints for unloaded shared library \"%s\""),
|
warning (_("Temporarily disabling breakpoints for unloaded shared library \"%s\""),
|
solib->so_name);
|
solib->so_name);
|
}
|
}
|
disabled_shlib_breaks = 1;
|
disabled_shlib_breaks = 1;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* FORK & VFORK catchpoints. */
|
/* FORK & VFORK catchpoints. */
|
|
|
/* Implement the "insert" breakpoint_ops method for fork catchpoints. */
|
/* Implement the "insert" breakpoint_ops method for fork catchpoints. */
|
|
|
static void
|
static void
|
insert_catch_fork (struct breakpoint *b)
|
insert_catch_fork (struct breakpoint *b)
|
{
|
{
|
target_insert_fork_catchpoint (PIDGET (inferior_ptid));
|
target_insert_fork_catchpoint (PIDGET (inferior_ptid));
|
}
|
}
|
|
|
/* Implement the "remove" breakpoint_ops method for fork catchpoints. */
|
/* Implement the "remove" breakpoint_ops method for fork catchpoints. */
|
|
|
static int
|
static int
|
remove_catch_fork (struct breakpoint *b)
|
remove_catch_fork (struct breakpoint *b)
|
{
|
{
|
return target_remove_fork_catchpoint (PIDGET (inferior_ptid));
|
return target_remove_fork_catchpoint (PIDGET (inferior_ptid));
|
}
|
}
|
|
|
/* Implement the "breakpoint_hit" breakpoint_ops method for fork
|
/* Implement the "breakpoint_hit" breakpoint_ops method for fork
|
catchpoints. */
|
catchpoints. */
|
|
|
static int
|
static int
|
breakpoint_hit_catch_fork (struct breakpoint *b)
|
breakpoint_hit_catch_fork (struct breakpoint *b)
|
{
|
{
|
return inferior_has_forked (inferior_ptid, &b->forked_inferior_pid);
|
return inferior_has_forked (inferior_ptid, &b->forked_inferior_pid);
|
}
|
}
|
|
|
/* Implement the "print_it" breakpoint_ops method for fork catchpoints. */
|
/* Implement the "print_it" breakpoint_ops method for fork catchpoints. */
|
|
|
static enum print_stop_action
|
static enum print_stop_action
|
print_it_catch_fork (struct breakpoint *b)
|
print_it_catch_fork (struct breakpoint *b)
|
{
|
{
|
annotate_catchpoint (b->number);
|
annotate_catchpoint (b->number);
|
printf_filtered (_("\nCatchpoint %d (forked process %d), "),
|
printf_filtered (_("\nCatchpoint %d (forked process %d), "),
|
b->number, ptid_get_pid (b->forked_inferior_pid));
|
b->number, ptid_get_pid (b->forked_inferior_pid));
|
return PRINT_SRC_AND_LOC;
|
return PRINT_SRC_AND_LOC;
|
}
|
}
|
|
|
/* Implement the "print_one" breakpoint_ops method for fork catchpoints. */
|
/* Implement the "print_one" breakpoint_ops method for fork catchpoints. */
|
|
|
static void
|
static void
|
print_one_catch_fork (struct breakpoint *b, struct bp_location **last_loc)
|
print_one_catch_fork (struct breakpoint *b, struct bp_location **last_loc)
|
{
|
{
|
struct value_print_options opts;
|
struct value_print_options opts;
|
|
|
get_user_print_options (&opts);
|
get_user_print_options (&opts);
|
|
|
/* Field 4, the address, is omitted (which makes the columns
|
/* Field 4, the address, is omitted (which makes the columns
|
not line up too nicely with the headers, but the effect
|
not line up too nicely with the headers, but the effect
|
is relatively readable). */
|
is relatively readable). */
|
if (opts.addressprint)
|
if (opts.addressprint)
|
ui_out_field_skip (uiout, "addr");
|
ui_out_field_skip (uiout, "addr");
|
annotate_field (5);
|
annotate_field (5);
|
ui_out_text (uiout, "fork");
|
ui_out_text (uiout, "fork");
|
if (!ptid_equal (b->forked_inferior_pid, null_ptid))
|
if (!ptid_equal (b->forked_inferior_pid, null_ptid))
|
{
|
{
|
ui_out_text (uiout, ", process ");
|
ui_out_text (uiout, ", process ");
|
ui_out_field_int (uiout, "what",
|
ui_out_field_int (uiout, "what",
|
ptid_get_pid (b->forked_inferior_pid));
|
ptid_get_pid (b->forked_inferior_pid));
|
ui_out_spaces (uiout, 1);
|
ui_out_spaces (uiout, 1);
|
}
|
}
|
}
|
}
|
|
|
/* Implement the "print_mention" breakpoint_ops method for fork
|
/* Implement the "print_mention" breakpoint_ops method for fork
|
catchpoints. */
|
catchpoints. */
|
|
|
static void
|
static void
|
print_mention_catch_fork (struct breakpoint *b)
|
print_mention_catch_fork (struct breakpoint *b)
|
{
|
{
|
printf_filtered (_("Catchpoint %d (fork)"), b->number);
|
printf_filtered (_("Catchpoint %d (fork)"), b->number);
|
}
|
}
|
|
|
/* The breakpoint_ops structure to be used in fork catchpoints. */
|
/* The breakpoint_ops structure to be used in fork catchpoints. */
|
|
|
static struct breakpoint_ops catch_fork_breakpoint_ops =
|
static struct breakpoint_ops catch_fork_breakpoint_ops =
|
{
|
{
|
insert_catch_fork,
|
insert_catch_fork,
|
remove_catch_fork,
|
remove_catch_fork,
|
breakpoint_hit_catch_fork,
|
breakpoint_hit_catch_fork,
|
print_it_catch_fork,
|
print_it_catch_fork,
|
print_one_catch_fork,
|
print_one_catch_fork,
|
print_mention_catch_fork
|
print_mention_catch_fork
|
};
|
};
|
|
|
/* Implement the "insert" breakpoint_ops method for vfork catchpoints. */
|
/* Implement the "insert" breakpoint_ops method for vfork catchpoints. */
|
|
|
static void
|
static void
|
insert_catch_vfork (struct breakpoint *b)
|
insert_catch_vfork (struct breakpoint *b)
|
{
|
{
|
target_insert_vfork_catchpoint (PIDGET (inferior_ptid));
|
target_insert_vfork_catchpoint (PIDGET (inferior_ptid));
|
}
|
}
|
|
|
/* Implement the "remove" breakpoint_ops method for vfork catchpoints. */
|
/* Implement the "remove" breakpoint_ops method for vfork catchpoints. */
|
|
|
static int
|
static int
|
remove_catch_vfork (struct breakpoint *b)
|
remove_catch_vfork (struct breakpoint *b)
|
{
|
{
|
return target_remove_vfork_catchpoint (PIDGET (inferior_ptid));
|
return target_remove_vfork_catchpoint (PIDGET (inferior_ptid));
|
}
|
}
|
|
|
/* Implement the "breakpoint_hit" breakpoint_ops method for vfork
|
/* Implement the "breakpoint_hit" breakpoint_ops method for vfork
|
catchpoints. */
|
catchpoints. */
|
|
|
static int
|
static int
|
breakpoint_hit_catch_vfork (struct breakpoint *b)
|
breakpoint_hit_catch_vfork (struct breakpoint *b)
|
{
|
{
|
return inferior_has_vforked (inferior_ptid, &b->forked_inferior_pid);
|
return inferior_has_vforked (inferior_ptid, &b->forked_inferior_pid);
|
}
|
}
|
|
|
/* Implement the "print_it" breakpoint_ops method for vfork catchpoints. */
|
/* Implement the "print_it" breakpoint_ops method for vfork catchpoints. */
|
|
|
static enum print_stop_action
|
static enum print_stop_action
|
print_it_catch_vfork (struct breakpoint *b)
|
print_it_catch_vfork (struct breakpoint *b)
|
{
|
{
|
annotate_catchpoint (b->number);
|
annotate_catchpoint (b->number);
|
printf_filtered (_("\nCatchpoint %d (vforked process %d), "),
|
printf_filtered (_("\nCatchpoint %d (vforked process %d), "),
|
b->number, ptid_get_pid (b->forked_inferior_pid));
|
b->number, ptid_get_pid (b->forked_inferior_pid));
|
return PRINT_SRC_AND_LOC;
|
return PRINT_SRC_AND_LOC;
|
}
|
}
|
|
|
/* Implement the "print_one" breakpoint_ops method for vfork catchpoints. */
|
/* Implement the "print_one" breakpoint_ops method for vfork catchpoints. */
|
|
|
static void
|
static void
|
print_one_catch_vfork (struct breakpoint *b, struct bp_location **last_loc)
|
print_one_catch_vfork (struct breakpoint *b, struct bp_location **last_loc)
|
{
|
{
|
struct value_print_options opts;
|
struct value_print_options opts;
|
|
|
get_user_print_options (&opts);
|
get_user_print_options (&opts);
|
/* Field 4, the address, is omitted (which makes the columns
|
/* Field 4, the address, is omitted (which makes the columns
|
not line up too nicely with the headers, but the effect
|
not line up too nicely with the headers, but the effect
|
is relatively readable). */
|
is relatively readable). */
|
if (opts.addressprint)
|
if (opts.addressprint)
|
ui_out_field_skip (uiout, "addr");
|
ui_out_field_skip (uiout, "addr");
|
annotate_field (5);
|
annotate_field (5);
|
ui_out_text (uiout, "vfork");
|
ui_out_text (uiout, "vfork");
|
if (!ptid_equal (b->forked_inferior_pid, null_ptid))
|
if (!ptid_equal (b->forked_inferior_pid, null_ptid))
|
{
|
{
|
ui_out_text (uiout, ", process ");
|
ui_out_text (uiout, ", process ");
|
ui_out_field_int (uiout, "what",
|
ui_out_field_int (uiout, "what",
|
ptid_get_pid (b->forked_inferior_pid));
|
ptid_get_pid (b->forked_inferior_pid));
|
ui_out_spaces (uiout, 1);
|
ui_out_spaces (uiout, 1);
|
}
|
}
|
}
|
}
|
|
|
/* Implement the "print_mention" breakpoint_ops method for vfork
|
/* Implement the "print_mention" breakpoint_ops method for vfork
|
catchpoints. */
|
catchpoints. */
|
|
|
static void
|
static void
|
print_mention_catch_vfork (struct breakpoint *b)
|
print_mention_catch_vfork (struct breakpoint *b)
|
{
|
{
|
printf_filtered (_("Catchpoint %d (vfork)"), b->number);
|
printf_filtered (_("Catchpoint %d (vfork)"), b->number);
|
}
|
}
|
|
|
/* The breakpoint_ops structure to be used in vfork catchpoints. */
|
/* The breakpoint_ops structure to be used in vfork catchpoints. */
|
|
|
static struct breakpoint_ops catch_vfork_breakpoint_ops =
|
static struct breakpoint_ops catch_vfork_breakpoint_ops =
|
{
|
{
|
insert_catch_vfork,
|
insert_catch_vfork,
|
remove_catch_vfork,
|
remove_catch_vfork,
|
breakpoint_hit_catch_vfork,
|
breakpoint_hit_catch_vfork,
|
print_it_catch_vfork,
|
print_it_catch_vfork,
|
print_one_catch_vfork,
|
print_one_catch_vfork,
|
print_mention_catch_vfork
|
print_mention_catch_vfork
|
};
|
};
|
|
|
/* Implement the "insert" breakpoint_ops method for syscall
|
/* Implement the "insert" breakpoint_ops method for syscall
|
catchpoints. */
|
catchpoints. */
|
|
|
static void
|
static void
|
insert_catch_syscall (struct breakpoint *b)
|
insert_catch_syscall (struct breakpoint *b)
|
{
|
{
|
struct inferior *inf = current_inferior ();
|
struct inferior *inf = current_inferior ();
|
|
|
++inf->total_syscalls_count;
|
++inf->total_syscalls_count;
|
if (!b->syscalls_to_be_caught)
|
if (!b->syscalls_to_be_caught)
|
++inf->any_syscall_count;
|
++inf->any_syscall_count;
|
else
|
else
|
{
|
{
|
int i, iter;
|
int i, iter;
|
for (i = 0;
|
for (i = 0;
|
VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
|
VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
|
i++)
|
i++)
|
{
|
{
|
int elem;
|
int elem;
|
if (iter >= VEC_length (int, inf->syscalls_counts))
|
if (iter >= VEC_length (int, inf->syscalls_counts))
|
{
|
{
|
int old_size = VEC_length (int, inf->syscalls_counts);
|
int old_size = VEC_length (int, inf->syscalls_counts);
|
uintptr_t vec_addr_offset = old_size * ((uintptr_t) sizeof (int));
|
uintptr_t vec_addr_offset = old_size * ((uintptr_t) sizeof (int));
|
uintptr_t vec_addr;
|
uintptr_t vec_addr;
|
VEC_safe_grow (int, inf->syscalls_counts, iter + 1);
|
VEC_safe_grow (int, inf->syscalls_counts, iter + 1);
|
vec_addr = (uintptr_t) VEC_address (int, inf->syscalls_counts) +
|
vec_addr = (uintptr_t) VEC_address (int, inf->syscalls_counts) +
|
vec_addr_offset;
|
vec_addr_offset;
|
memset ((void *) vec_addr, 0,
|
memset ((void *) vec_addr, 0,
|
(iter + 1 - old_size) * sizeof (int));
|
(iter + 1 - old_size) * sizeof (int));
|
}
|
}
|
elem = VEC_index (int, inf->syscalls_counts, iter);
|
elem = VEC_index (int, inf->syscalls_counts, iter);
|
VEC_replace (int, inf->syscalls_counts, iter, ++elem);
|
VEC_replace (int, inf->syscalls_counts, iter, ++elem);
|
}
|
}
|
}
|
}
|
|
|
target_set_syscall_catchpoint (PIDGET (inferior_ptid),
|
target_set_syscall_catchpoint (PIDGET (inferior_ptid),
|
inf->total_syscalls_count != 0,
|
inf->total_syscalls_count != 0,
|
inf->any_syscall_count,
|
inf->any_syscall_count,
|
VEC_length (int, inf->syscalls_counts),
|
VEC_length (int, inf->syscalls_counts),
|
VEC_address (int, inf->syscalls_counts));
|
VEC_address (int, inf->syscalls_counts));
|
}
|
}
|
|
|
/* Implement the "remove" breakpoint_ops method for syscall
|
/* Implement the "remove" breakpoint_ops method for syscall
|
catchpoints. */
|
catchpoints. */
|
|
|
static int
|
static int
|
remove_catch_syscall (struct breakpoint *b)
|
remove_catch_syscall (struct breakpoint *b)
|
{
|
{
|
struct inferior *inf = current_inferior ();
|
struct inferior *inf = current_inferior ();
|
|
|
--inf->total_syscalls_count;
|
--inf->total_syscalls_count;
|
if (!b->syscalls_to_be_caught)
|
if (!b->syscalls_to_be_caught)
|
--inf->any_syscall_count;
|
--inf->any_syscall_count;
|
else
|
else
|
{
|
{
|
int i, iter;
|
int i, iter;
|
for (i = 0;
|
for (i = 0;
|
VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
|
VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
|
i++)
|
i++)
|
{
|
{
|
int elem;
|
int elem;
|
if (iter >= VEC_length (int, inf->syscalls_counts))
|
if (iter >= VEC_length (int, inf->syscalls_counts))
|
/* Shouldn't happen. */
|
/* Shouldn't happen. */
|
continue;
|
continue;
|
elem = VEC_index (int, inf->syscalls_counts, iter);
|
elem = VEC_index (int, inf->syscalls_counts, iter);
|
VEC_replace (int, inf->syscalls_counts, iter, --elem);
|
VEC_replace (int, inf->syscalls_counts, iter, --elem);
|
}
|
}
|
}
|
}
|
|
|
return target_set_syscall_catchpoint (PIDGET (inferior_ptid),
|
return target_set_syscall_catchpoint (PIDGET (inferior_ptid),
|
inf->total_syscalls_count != 0,
|
inf->total_syscalls_count != 0,
|
inf->any_syscall_count,
|
inf->any_syscall_count,
|
VEC_length (int, inf->syscalls_counts),
|
VEC_length (int, inf->syscalls_counts),
|
VEC_address (int, inf->syscalls_counts));
|
VEC_address (int, inf->syscalls_counts));
|
}
|
}
|
|
|
/* Implement the "breakpoint_hit" breakpoint_ops method for syscall
|
/* Implement the "breakpoint_hit" breakpoint_ops method for syscall
|
catchpoints. */
|
catchpoints. */
|
|
|
static int
|
static int
|
breakpoint_hit_catch_syscall (struct breakpoint *b)
|
breakpoint_hit_catch_syscall (struct breakpoint *b)
|
{
|
{
|
/* We must check if we are catching specific syscalls in this breakpoint.
|
/* We must check if we are catching specific syscalls in this breakpoint.
|
If we are, then we must guarantee that the called syscall is the same
|
If we are, then we must guarantee that the called syscall is the same
|
syscall we are catching. */
|
syscall we are catching. */
|
int syscall_number = 0;
|
int syscall_number = 0;
|
|
|
if (!inferior_has_called_syscall (inferior_ptid, &syscall_number))
|
if (!inferior_has_called_syscall (inferior_ptid, &syscall_number))
|
return 0;
|
return 0;
|
|
|
/* Now, checking if the syscall is the same. */
|
/* Now, checking if the syscall is the same. */
|
if (b->syscalls_to_be_caught)
|
if (b->syscalls_to_be_caught)
|
{
|
{
|
int i, iter;
|
int i, iter;
|
for (i = 0;
|
for (i = 0;
|
VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
|
VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
|
i++)
|
i++)
|
if (syscall_number == iter)
|
if (syscall_number == iter)
|
break;
|
break;
|
/* Not the same. */
|
/* Not the same. */
|
if (!iter)
|
if (!iter)
|
return 0;
|
return 0;
|
}
|
}
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Implement the "print_it" breakpoint_ops method for syscall
|
/* Implement the "print_it" breakpoint_ops method for syscall
|
catchpoints. */
|
catchpoints. */
|
|
|
static enum print_stop_action
|
static enum print_stop_action
|
print_it_catch_syscall (struct breakpoint *b)
|
print_it_catch_syscall (struct breakpoint *b)
|
{
|
{
|
/* These are needed because we want to know in which state a
|
/* These are needed because we want to know in which state a
|
syscall is. It can be in the TARGET_WAITKIND_SYSCALL_ENTRY
|
syscall is. It can be in the TARGET_WAITKIND_SYSCALL_ENTRY
|
or TARGET_WAITKIND_SYSCALL_RETURN, and depending on it we
|
or TARGET_WAITKIND_SYSCALL_RETURN, and depending on it we
|
must print "called syscall" or "returned from syscall". */
|
must print "called syscall" or "returned from syscall". */
|
ptid_t ptid;
|
ptid_t ptid;
|
struct target_waitstatus last;
|
struct target_waitstatus last;
|
struct syscall s;
|
struct syscall s;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
char *syscall_id;
|
char *syscall_id;
|
|
|
get_last_target_status (&ptid, &last);
|
get_last_target_status (&ptid, &last);
|
|
|
get_syscall_by_number (last.value.syscall_number, &s);
|
get_syscall_by_number (last.value.syscall_number, &s);
|
|
|
annotate_catchpoint (b->number);
|
annotate_catchpoint (b->number);
|
|
|
if (s.name == NULL)
|
if (s.name == NULL)
|
syscall_id = xstrprintf ("%d", last.value.syscall_number);
|
syscall_id = xstrprintf ("%d", last.value.syscall_number);
|
else
|
else
|
syscall_id = xstrprintf ("'%s'", s.name);
|
syscall_id = xstrprintf ("'%s'", s.name);
|
|
|
old_chain = make_cleanup (xfree, syscall_id);
|
old_chain = make_cleanup (xfree, syscall_id);
|
|
|
if (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY)
|
if (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY)
|
printf_filtered (_("\nCatchpoint %d (call to syscall %s), "),
|
printf_filtered (_("\nCatchpoint %d (call to syscall %s), "),
|
b->number, syscall_id);
|
b->number, syscall_id);
|
else if (last.kind == TARGET_WAITKIND_SYSCALL_RETURN)
|
else if (last.kind == TARGET_WAITKIND_SYSCALL_RETURN)
|
printf_filtered (_("\nCatchpoint %d (returned from syscall %s), "),
|
printf_filtered (_("\nCatchpoint %d (returned from syscall %s), "),
|
b->number, syscall_id);
|
b->number, syscall_id);
|
|
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
|
|
return PRINT_SRC_AND_LOC;
|
return PRINT_SRC_AND_LOC;
|
}
|
}
|
|
|
/* Implement the "print_one" breakpoint_ops method for syscall
|
/* Implement the "print_one" breakpoint_ops method for syscall
|
catchpoints. */
|
catchpoints. */
|
|
|
static void
|
static void
|
print_one_catch_syscall (struct breakpoint *b,
|
print_one_catch_syscall (struct breakpoint *b,
|
struct bp_location **last_loc)
|
struct bp_location **last_loc)
|
{
|
{
|
struct value_print_options opts;
|
struct value_print_options opts;
|
|
|
get_user_print_options (&opts);
|
get_user_print_options (&opts);
|
/* Field 4, the address, is omitted (which makes the columns
|
/* Field 4, the address, is omitted (which makes the columns
|
not line up too nicely with the headers, but the effect
|
not line up too nicely with the headers, but the effect
|
is relatively readable). */
|
is relatively readable). */
|
if (opts.addressprint)
|
if (opts.addressprint)
|
ui_out_field_skip (uiout, "addr");
|
ui_out_field_skip (uiout, "addr");
|
annotate_field (5);
|
annotate_field (5);
|
|
|
if (b->syscalls_to_be_caught
|
if (b->syscalls_to_be_caught
|
&& VEC_length (int, b->syscalls_to_be_caught) > 1)
|
&& VEC_length (int, b->syscalls_to_be_caught) > 1)
|
ui_out_text (uiout, "syscalls \"");
|
ui_out_text (uiout, "syscalls \"");
|
else
|
else
|
ui_out_text (uiout, "syscall \"");
|
ui_out_text (uiout, "syscall \"");
|
|
|
if (b->syscalls_to_be_caught)
|
if (b->syscalls_to_be_caught)
|
{
|
{
|
int i, iter;
|
int i, iter;
|
char *text = xstrprintf ("%s", "");
|
char *text = xstrprintf ("%s", "");
|
for (i = 0;
|
for (i = 0;
|
VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
|
VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
|
i++)
|
i++)
|
{
|
{
|
char *x = text;
|
char *x = text;
|
struct syscall s;
|
struct syscall s;
|
get_syscall_by_number (iter, &s);
|
get_syscall_by_number (iter, &s);
|
|
|
if (s.name != NULL)
|
if (s.name != NULL)
|
text = xstrprintf ("%s%s, ", text, s.name);
|
text = xstrprintf ("%s%s, ", text, s.name);
|
else
|
else
|
text = xstrprintf ("%s%d, ", text, iter);
|
text = xstrprintf ("%s%d, ", text, iter);
|
|
|
/* We have to xfree the last 'text' (now stored at 'x')
|
/* We have to xfree the last 'text' (now stored at 'x')
|
because xstrprintf dinamically allocates new space for it
|
because xstrprintf dinamically allocates new space for it
|
on every call. */
|
on every call. */
|
xfree (x);
|
xfree (x);
|
}
|
}
|
/* Remove the last comma. */
|
/* Remove the last comma. */
|
text[strlen (text) - 2] = '\0';
|
text[strlen (text) - 2] = '\0';
|
ui_out_field_string (uiout, "what", text);
|
ui_out_field_string (uiout, "what", text);
|
}
|
}
|
else
|
else
|
ui_out_field_string (uiout, "what", "<any syscall>");
|
ui_out_field_string (uiout, "what", "<any syscall>");
|
ui_out_text (uiout, "\" ");
|
ui_out_text (uiout, "\" ");
|
}
|
}
|
|
|
/* Implement the "print_mention" breakpoint_ops method for syscall
|
/* Implement the "print_mention" breakpoint_ops method for syscall
|
catchpoints. */
|
catchpoints. */
|
|
|
static void
|
static void
|
print_mention_catch_syscall (struct breakpoint *b)
|
print_mention_catch_syscall (struct breakpoint *b)
|
{
|
{
|
if (b->syscalls_to_be_caught)
|
if (b->syscalls_to_be_caught)
|
{
|
{
|
int i, iter;
|
int i, iter;
|
|
|
if (VEC_length (int, b->syscalls_to_be_caught) > 1)
|
if (VEC_length (int, b->syscalls_to_be_caught) > 1)
|
printf_filtered (_("Catchpoint %d (syscalls"), b->number);
|
printf_filtered (_("Catchpoint %d (syscalls"), b->number);
|
else
|
else
|
printf_filtered (_("Catchpoint %d (syscall"), b->number);
|
printf_filtered (_("Catchpoint %d (syscall"), b->number);
|
|
|
for (i = 0;
|
for (i = 0;
|
VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
|
VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
|
i++)
|
i++)
|
{
|
{
|
struct syscall s;
|
struct syscall s;
|
get_syscall_by_number (iter, &s);
|
get_syscall_by_number (iter, &s);
|
|
|
if (s.name)
|
if (s.name)
|
printf_filtered (" '%s' [%d]", s.name, s.number);
|
printf_filtered (" '%s' [%d]", s.name, s.number);
|
else
|
else
|
printf_filtered (" %d", s.number);
|
printf_filtered (" %d", s.number);
|
}
|
}
|
printf_filtered (")");
|
printf_filtered (")");
|
}
|
}
|
else
|
else
|
printf_filtered (_("Catchpoint %d (any syscall)"),
|
printf_filtered (_("Catchpoint %d (any syscall)"),
|
b->number);
|
b->number);
|
}
|
}
|
|
|
/* The breakpoint_ops structure to be used in syscall catchpoints. */
|
/* The breakpoint_ops structure to be used in syscall catchpoints. */
|
|
|
static struct breakpoint_ops catch_syscall_breakpoint_ops =
|
static struct breakpoint_ops catch_syscall_breakpoint_ops =
|
{
|
{
|
insert_catch_syscall,
|
insert_catch_syscall,
|
remove_catch_syscall,
|
remove_catch_syscall,
|
breakpoint_hit_catch_syscall,
|
breakpoint_hit_catch_syscall,
|
print_it_catch_syscall,
|
print_it_catch_syscall,
|
print_one_catch_syscall,
|
print_one_catch_syscall,
|
print_mention_catch_syscall
|
print_mention_catch_syscall
|
};
|
};
|
|
|
/* Returns non-zero if 'b' is a syscall catchpoint. */
|
/* Returns non-zero if 'b' is a syscall catchpoint. */
|
|
|
static int
|
static int
|
syscall_catchpoint_p (struct breakpoint *b)
|
syscall_catchpoint_p (struct breakpoint *b)
|
{
|
{
|
return (b->ops == &catch_syscall_breakpoint_ops);
|
return (b->ops == &catch_syscall_breakpoint_ops);
|
}
|
}
|
|
|
/* Create a new breakpoint of the bp_catchpoint kind and return it,
|
/* Create a new breakpoint of the bp_catchpoint kind and return it,
|
but does NOT mention it nor update the global location list.
|
but does NOT mention it nor update the global location list.
|
This is useful if you need to fill more fields in the
|
This is useful if you need to fill more fields in the
|
struct breakpoint before calling mention.
|
struct breakpoint before calling mention.
|
|
|
If TEMPFLAG is non-zero, then make the breakpoint temporary.
|
If TEMPFLAG is non-zero, then make the breakpoint temporary.
|
If COND_STRING is not NULL, then store it in the breakpoint.
|
If COND_STRING is not NULL, then store it in the breakpoint.
|
OPS, if not NULL, is the breakpoint_ops structure associated
|
OPS, if not NULL, is the breakpoint_ops structure associated
|
to the catchpoint. */
|
to the catchpoint. */
|
|
|
static struct breakpoint *
|
static struct breakpoint *
|
create_catchpoint_without_mention (struct gdbarch *gdbarch, int tempflag,
|
create_catchpoint_without_mention (struct gdbarch *gdbarch, int tempflag,
|
char *cond_string,
|
char *cond_string,
|
struct breakpoint_ops *ops)
|
struct breakpoint_ops *ops)
|
{
|
{
|
struct symtab_and_line sal;
|
struct symtab_and_line sal;
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
init_sal (&sal);
|
init_sal (&sal);
|
sal.pspace = current_program_space;
|
sal.pspace = current_program_space;
|
|
|
b = set_raw_breakpoint (gdbarch, sal, bp_catchpoint);
|
b = set_raw_breakpoint (gdbarch, sal, bp_catchpoint);
|
set_breakpoint_count (breakpoint_count + 1);
|
set_breakpoint_count (breakpoint_count + 1);
|
b->number = breakpoint_count;
|
b->number = breakpoint_count;
|
|
|
b->cond_string = (cond_string == NULL) ? NULL : xstrdup (cond_string);
|
b->cond_string = (cond_string == NULL) ? NULL : xstrdup (cond_string);
|
b->thread = -1;
|
b->thread = -1;
|
b->addr_string = NULL;
|
b->addr_string = NULL;
|
b->enable_state = bp_enabled;
|
b->enable_state = bp_enabled;
|
b->disposition = tempflag ? disp_del : disp_donttouch;
|
b->disposition = tempflag ? disp_del : disp_donttouch;
|
b->ops = ops;
|
b->ops = ops;
|
|
|
return b;
|
return b;
|
}
|
}
|
|
|
/* Create a new breakpoint of the bp_catchpoint kind and return it.
|
/* Create a new breakpoint of the bp_catchpoint kind and return it.
|
|
|
If TEMPFLAG is non-zero, then make the breakpoint temporary.
|
If TEMPFLAG is non-zero, then make the breakpoint temporary.
|
If COND_STRING is not NULL, then store it in the breakpoint.
|
If COND_STRING is not NULL, then store it in the breakpoint.
|
OPS, if not NULL, is the breakpoint_ops structure associated
|
OPS, if not NULL, is the breakpoint_ops structure associated
|
to the catchpoint. */
|
to the catchpoint. */
|
|
|
static struct breakpoint *
|
static struct breakpoint *
|
create_catchpoint (struct gdbarch *gdbarch, int tempflag,
|
create_catchpoint (struct gdbarch *gdbarch, int tempflag,
|
char *cond_string, struct breakpoint_ops *ops)
|
char *cond_string, struct breakpoint_ops *ops)
|
{
|
{
|
struct breakpoint *b =
|
struct breakpoint *b =
|
create_catchpoint_without_mention (gdbarch, tempflag, cond_string, ops);
|
create_catchpoint_without_mention (gdbarch, tempflag, cond_string, ops);
|
|
|
mention (b);
|
mention (b);
|
update_global_location_list (1);
|
update_global_location_list (1);
|
|
|
return b;
|
return b;
|
}
|
}
|
|
|
static void
|
static void
|
create_fork_vfork_event_catchpoint (struct gdbarch *gdbarch,
|
create_fork_vfork_event_catchpoint (struct gdbarch *gdbarch,
|
int tempflag, char *cond_string,
|
int tempflag, char *cond_string,
|
struct breakpoint_ops *ops)
|
struct breakpoint_ops *ops)
|
{
|
{
|
struct breakpoint *b
|
struct breakpoint *b
|
= create_catchpoint (gdbarch, tempflag, cond_string, ops);
|
= create_catchpoint (gdbarch, tempflag, cond_string, ops);
|
|
|
/* FIXME: We should put this information in a breakpoint private data
|
/* FIXME: We should put this information in a breakpoint private data
|
area. */
|
area. */
|
b->forked_inferior_pid = null_ptid;
|
b->forked_inferior_pid = null_ptid;
|
}
|
}
|
|
|
/* Exec catchpoints. */
|
/* Exec catchpoints. */
|
|
|
static void
|
static void
|
insert_catch_exec (struct breakpoint *b)
|
insert_catch_exec (struct breakpoint *b)
|
{
|
{
|
target_insert_exec_catchpoint (PIDGET (inferior_ptid));
|
target_insert_exec_catchpoint (PIDGET (inferior_ptid));
|
}
|
}
|
|
|
static int
|
static int
|
remove_catch_exec (struct breakpoint *b)
|
remove_catch_exec (struct breakpoint *b)
|
{
|
{
|
return target_remove_exec_catchpoint (PIDGET (inferior_ptid));
|
return target_remove_exec_catchpoint (PIDGET (inferior_ptid));
|
}
|
}
|
|
|
static int
|
static int
|
breakpoint_hit_catch_exec (struct breakpoint *b)
|
breakpoint_hit_catch_exec (struct breakpoint *b)
|
{
|
{
|
return inferior_has_execd (inferior_ptid, &b->exec_pathname);
|
return inferior_has_execd (inferior_ptid, &b->exec_pathname);
|
}
|
}
|
|
|
static enum print_stop_action
|
static enum print_stop_action
|
print_it_catch_exec (struct breakpoint *b)
|
print_it_catch_exec (struct breakpoint *b)
|
{
|
{
|
annotate_catchpoint (b->number);
|
annotate_catchpoint (b->number);
|
printf_filtered (_("\nCatchpoint %d (exec'd %s), "), b->number,
|
printf_filtered (_("\nCatchpoint %d (exec'd %s), "), b->number,
|
b->exec_pathname);
|
b->exec_pathname);
|
return PRINT_SRC_AND_LOC;
|
return PRINT_SRC_AND_LOC;
|
}
|
}
|
|
|
static void
|
static void
|
print_one_catch_exec (struct breakpoint *b, struct bp_location **last_loc)
|
print_one_catch_exec (struct breakpoint *b, struct bp_location **last_loc)
|
{
|
{
|
struct value_print_options opts;
|
struct value_print_options opts;
|
|
|
get_user_print_options (&opts);
|
get_user_print_options (&opts);
|
|
|
/* Field 4, the address, is omitted (which makes the columns
|
/* Field 4, the address, is omitted (which makes the columns
|
not line up too nicely with the headers, but the effect
|
not line up too nicely with the headers, but the effect
|
is relatively readable). */
|
is relatively readable). */
|
if (opts.addressprint)
|
if (opts.addressprint)
|
ui_out_field_skip (uiout, "addr");
|
ui_out_field_skip (uiout, "addr");
|
annotate_field (5);
|
annotate_field (5);
|
ui_out_text (uiout, "exec");
|
ui_out_text (uiout, "exec");
|
if (b->exec_pathname != NULL)
|
if (b->exec_pathname != NULL)
|
{
|
{
|
ui_out_text (uiout, ", program \"");
|
ui_out_text (uiout, ", program \"");
|
ui_out_field_string (uiout, "what", b->exec_pathname);
|
ui_out_field_string (uiout, "what", b->exec_pathname);
|
ui_out_text (uiout, "\" ");
|
ui_out_text (uiout, "\" ");
|
}
|
}
|
}
|
}
|
|
|
static void
|
static void
|
print_mention_catch_exec (struct breakpoint *b)
|
print_mention_catch_exec (struct breakpoint *b)
|
{
|
{
|
printf_filtered (_("Catchpoint %d (exec)"), b->number);
|
printf_filtered (_("Catchpoint %d (exec)"), b->number);
|
}
|
}
|
|
|
static struct breakpoint_ops catch_exec_breakpoint_ops =
|
static struct breakpoint_ops catch_exec_breakpoint_ops =
|
{
|
{
|
insert_catch_exec,
|
insert_catch_exec,
|
remove_catch_exec,
|
remove_catch_exec,
|
breakpoint_hit_catch_exec,
|
breakpoint_hit_catch_exec,
|
print_it_catch_exec,
|
print_it_catch_exec,
|
print_one_catch_exec,
|
print_one_catch_exec,
|
print_mention_catch_exec
|
print_mention_catch_exec
|
};
|
};
|
|
|
static void
|
static void
|
create_syscall_event_catchpoint (int tempflag, VEC(int) *filter,
|
create_syscall_event_catchpoint (int tempflag, VEC(int) *filter,
|
struct breakpoint_ops *ops)
|
struct breakpoint_ops *ops)
|
{
|
{
|
struct gdbarch *gdbarch = get_current_arch ();
|
struct gdbarch *gdbarch = get_current_arch ();
|
struct breakpoint *b =
|
struct breakpoint *b =
|
create_catchpoint_without_mention (gdbarch, tempflag, NULL, ops);
|
create_catchpoint_without_mention (gdbarch, tempflag, NULL, ops);
|
|
|
b->syscalls_to_be_caught = filter;
|
b->syscalls_to_be_caught = filter;
|
|
|
/* Now, we have to mention the breakpoint and update the global
|
/* Now, we have to mention the breakpoint and update the global
|
location list. */
|
location list. */
|
mention (b);
|
mention (b);
|
update_global_location_list (1);
|
update_global_location_list (1);
|
}
|
}
|
|
|
static int
|
static int
|
hw_breakpoint_used_count (void)
|
hw_breakpoint_used_count (void)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
int i = 0;
|
int i = 0;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
{
|
{
|
if (b->type == bp_hardware_breakpoint && breakpoint_enabled (b))
|
if (b->type == bp_hardware_breakpoint && breakpoint_enabled (b))
|
i++;
|
i++;
|
}
|
}
|
|
|
return i;
|
return i;
|
}
|
}
|
|
|
static int
|
static int
|
hw_watchpoint_used_count (enum bptype type, int *other_type_used)
|
hw_watchpoint_used_count (enum bptype type, int *other_type_used)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
int i = 0;
|
int i = 0;
|
|
|
*other_type_used = 0;
|
*other_type_used = 0;
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
{
|
{
|
if (breakpoint_enabled (b))
|
if (breakpoint_enabled (b))
|
{
|
{
|
if (b->type == type)
|
if (b->type == type)
|
i++;
|
i++;
|
else if ((b->type == bp_hardware_watchpoint
|
else if ((b->type == bp_hardware_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_read_watchpoint
|
|| b->type == bp_access_watchpoint))
|
|| b->type == bp_access_watchpoint))
|
*other_type_used = 1;
|
*other_type_used = 1;
|
}
|
}
|
}
|
}
|
return i;
|
return i;
|
}
|
}
|
|
|
void
|
void
|
disable_watchpoints_before_interactive_call_start (void)
|
disable_watchpoints_before_interactive_call_start (void)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
{
|
{
|
if (((b->type == bp_watchpoint)
|
if (((b->type == bp_watchpoint)
|
|| (b->type == bp_hardware_watchpoint)
|
|| (b->type == bp_hardware_watchpoint)
|
|| (b->type == bp_read_watchpoint)
|
|| (b->type == bp_read_watchpoint)
|
|| (b->type == bp_access_watchpoint))
|
|| (b->type == bp_access_watchpoint))
|
&& breakpoint_enabled (b))
|
&& breakpoint_enabled (b))
|
{
|
{
|
b->enable_state = bp_call_disabled;
|
b->enable_state = bp_call_disabled;
|
update_global_location_list (0);
|
update_global_location_list (0);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
void
|
void
|
enable_watchpoints_after_interactive_call_stop (void)
|
enable_watchpoints_after_interactive_call_stop (void)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
{
|
{
|
if (((b->type == bp_watchpoint)
|
if (((b->type == bp_watchpoint)
|
|| (b->type == bp_hardware_watchpoint)
|
|| (b->type == bp_hardware_watchpoint)
|
|| (b->type == bp_read_watchpoint)
|
|| (b->type == bp_read_watchpoint)
|
|| (b->type == bp_access_watchpoint))
|
|| (b->type == bp_access_watchpoint))
|
&& (b->enable_state == bp_call_disabled))
|
&& (b->enable_state == bp_call_disabled))
|
{
|
{
|
b->enable_state = bp_enabled;
|
b->enable_state = bp_enabled;
|
update_global_location_list (1);
|
update_global_location_list (1);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
void
|
void
|
disable_breakpoints_before_startup (void)
|
disable_breakpoints_before_startup (void)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
int found = 0;
|
int found = 0;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
{
|
{
|
if (b->pspace != current_program_space)
|
if (b->pspace != current_program_space)
|
continue;
|
continue;
|
|
|
if ((b->type == bp_breakpoint
|
if ((b->type == bp_breakpoint
|
|| b->type == bp_hardware_breakpoint)
|
|| b->type == bp_hardware_breakpoint)
|
&& breakpoint_enabled (b))
|
&& breakpoint_enabled (b))
|
{
|
{
|
b->enable_state = bp_startup_disabled;
|
b->enable_state = bp_startup_disabled;
|
found = 1;
|
found = 1;
|
}
|
}
|
}
|
}
|
|
|
if (found)
|
if (found)
|
update_global_location_list (0);
|
update_global_location_list (0);
|
|
|
current_program_space->executing_startup = 1;
|
current_program_space->executing_startup = 1;
|
}
|
}
|
|
|
void
|
void
|
enable_breakpoints_after_startup (void)
|
enable_breakpoints_after_startup (void)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
int found = 0;
|
int found = 0;
|
|
|
current_program_space->executing_startup = 0;
|
current_program_space->executing_startup = 0;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
{
|
{
|
if (b->pspace != current_program_space)
|
if (b->pspace != current_program_space)
|
continue;
|
continue;
|
|
|
if ((b->type == bp_breakpoint
|
if ((b->type == bp_breakpoint
|
|| b->type == bp_hardware_breakpoint)
|
|| b->type == bp_hardware_breakpoint)
|
&& b->enable_state == bp_startup_disabled)
|
&& b->enable_state == bp_startup_disabled)
|
{
|
{
|
b->enable_state = bp_enabled;
|
b->enable_state = bp_enabled;
|
found = 1;
|
found = 1;
|
}
|
}
|
}
|
}
|
|
|
if (found)
|
if (found)
|
breakpoint_re_set ();
|
breakpoint_re_set ();
|
}
|
}
|
|
|
|
|
/* Set a breakpoint that will evaporate an end of command
|
/* Set a breakpoint that will evaporate an end of command
|
at address specified by SAL.
|
at address specified by SAL.
|
Restrict it to frame FRAME if FRAME is nonzero. */
|
Restrict it to frame FRAME if FRAME is nonzero. */
|
|
|
struct breakpoint *
|
struct breakpoint *
|
set_momentary_breakpoint (struct gdbarch *gdbarch, struct symtab_and_line sal,
|
set_momentary_breakpoint (struct gdbarch *gdbarch, struct symtab_and_line sal,
|
struct frame_id frame_id, enum bptype type)
|
struct frame_id frame_id, enum bptype type)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
/* If FRAME_ID is valid, it should be a real frame, not an inlined
|
/* If FRAME_ID is valid, it should be a real frame, not an inlined
|
one. */
|
one. */
|
gdb_assert (!frame_id_inlined_p (frame_id));
|
gdb_assert (!frame_id_inlined_p (frame_id));
|
|
|
b = set_raw_breakpoint (gdbarch, sal, type);
|
b = set_raw_breakpoint (gdbarch, sal, type);
|
b->enable_state = bp_enabled;
|
b->enable_state = bp_enabled;
|
b->disposition = disp_donttouch;
|
b->disposition = disp_donttouch;
|
b->frame_id = frame_id;
|
b->frame_id = frame_id;
|
|
|
/* If we're debugging a multi-threaded program, then we
|
/* If we're debugging a multi-threaded program, then we
|
want momentary breakpoints to be active in only a
|
want momentary breakpoints to be active in only a
|
single thread of control. */
|
single thread of control. */
|
if (in_thread_list (inferior_ptid))
|
if (in_thread_list (inferior_ptid))
|
b->thread = pid_to_thread_id (inferior_ptid);
|
b->thread = pid_to_thread_id (inferior_ptid);
|
|
|
update_global_location_list_nothrow (1);
|
update_global_location_list_nothrow (1);
|
|
|
return b;
|
return b;
|
}
|
}
|
|
|
/* Make a deep copy of momentary breakpoint ORIG. Returns NULL if
|
/* Make a deep copy of momentary breakpoint ORIG. Returns NULL if
|
ORIG is NULL. */
|
ORIG is NULL. */
|
|
|
struct breakpoint *
|
struct breakpoint *
|
clone_momentary_breakpoint (struct breakpoint *orig)
|
clone_momentary_breakpoint (struct breakpoint *orig)
|
{
|
{
|
struct breakpoint *copy;
|
struct breakpoint *copy;
|
|
|
/* If there's nothing to clone, then return nothing. */
|
/* If there's nothing to clone, then return nothing. */
|
if (orig == NULL)
|
if (orig == NULL)
|
return NULL;
|
return NULL;
|
|
|
copy = set_raw_breakpoint_without_location (orig->gdbarch, orig->type);
|
copy = set_raw_breakpoint_without_location (orig->gdbarch, orig->type);
|
copy->loc = allocate_bp_location (copy);
|
copy->loc = allocate_bp_location (copy);
|
set_breakpoint_location_function (copy->loc);
|
set_breakpoint_location_function (copy->loc);
|
|
|
copy->loc->gdbarch = orig->loc->gdbarch;
|
copy->loc->gdbarch = orig->loc->gdbarch;
|
copy->loc->requested_address = orig->loc->requested_address;
|
copy->loc->requested_address = orig->loc->requested_address;
|
copy->loc->address = orig->loc->address;
|
copy->loc->address = orig->loc->address;
|
copy->loc->section = orig->loc->section;
|
copy->loc->section = orig->loc->section;
|
copy->loc->pspace = orig->loc->pspace;
|
copy->loc->pspace = orig->loc->pspace;
|
|
|
if (orig->source_file == NULL)
|
if (orig->source_file == NULL)
|
copy->source_file = NULL;
|
copy->source_file = NULL;
|
else
|
else
|
copy->source_file = xstrdup (orig->source_file);
|
copy->source_file = xstrdup (orig->source_file);
|
|
|
copy->line_number = orig->line_number;
|
copy->line_number = orig->line_number;
|
copy->frame_id = orig->frame_id;
|
copy->frame_id = orig->frame_id;
|
copy->thread = orig->thread;
|
copy->thread = orig->thread;
|
copy->pspace = orig->pspace;
|
copy->pspace = orig->pspace;
|
|
|
copy->enable_state = bp_enabled;
|
copy->enable_state = bp_enabled;
|
copy->disposition = disp_donttouch;
|
copy->disposition = disp_donttouch;
|
copy->number = internal_breakpoint_number--;
|
copy->number = internal_breakpoint_number--;
|
|
|
update_global_location_list_nothrow (0);
|
update_global_location_list_nothrow (0);
|
return copy;
|
return copy;
|
}
|
}
|
|
|
struct breakpoint *
|
struct breakpoint *
|
set_momentary_breakpoint_at_pc (struct gdbarch *gdbarch, CORE_ADDR pc,
|
set_momentary_breakpoint_at_pc (struct gdbarch *gdbarch, CORE_ADDR pc,
|
enum bptype type)
|
enum bptype type)
|
{
|
{
|
struct symtab_and_line sal;
|
struct symtab_and_line sal;
|
|
|
sal = find_pc_line (pc, 0);
|
sal = find_pc_line (pc, 0);
|
sal.pc = pc;
|
sal.pc = pc;
|
sal.section = find_pc_overlay (pc);
|
sal.section = find_pc_overlay (pc);
|
sal.explicit_pc = 1;
|
sal.explicit_pc = 1;
|
|
|
return set_momentary_breakpoint (gdbarch, sal, null_frame_id, type);
|
return set_momentary_breakpoint (gdbarch, sal, null_frame_id, type);
|
}
|
}
|
|
|
|
|
/* Tell the user we have just set a breakpoint B. */
|
/* Tell the user we have just set a breakpoint B. */
|
|
|
static void
|
static void
|
mention (struct breakpoint *b)
|
mention (struct breakpoint *b)
|
{
|
{
|
int say_where = 0;
|
int say_where = 0;
|
struct cleanup *ui_out_chain;
|
struct cleanup *ui_out_chain;
|
struct value_print_options opts;
|
struct value_print_options opts;
|
|
|
get_user_print_options (&opts);
|
get_user_print_options (&opts);
|
|
|
/* FIXME: This is misplaced; mention() is called by things (like
|
/* FIXME: This is misplaced; mention() is called by things (like
|
hitting a watchpoint) other than breakpoint creation. It should
|
hitting a watchpoint) other than breakpoint creation. It should
|
be possible to clean this up and at the same time replace the
|
be possible to clean this up and at the same time replace the
|
random calls to breakpoint_changed with this hook. */
|
random calls to breakpoint_changed with this hook. */
|
observer_notify_breakpoint_created (b->number);
|
observer_notify_breakpoint_created (b->number);
|
|
|
if (b->ops != NULL && b->ops->print_mention != NULL)
|
if (b->ops != NULL && b->ops->print_mention != NULL)
|
b->ops->print_mention (b);
|
b->ops->print_mention (b);
|
else
|
else
|
switch (b->type)
|
switch (b->type)
|
{
|
{
|
case bp_none:
|
case bp_none:
|
printf_filtered (_("(apparently deleted?) Eventpoint %d: "), b->number);
|
printf_filtered (_("(apparently deleted?) Eventpoint %d: "), b->number);
|
break;
|
break;
|
case bp_watchpoint:
|
case bp_watchpoint:
|
ui_out_text (uiout, "Watchpoint ");
|
ui_out_text (uiout, "Watchpoint ");
|
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt");
|
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt");
|
ui_out_field_int (uiout, "number", b->number);
|
ui_out_field_int (uiout, "number", b->number);
|
ui_out_text (uiout, ": ");
|
ui_out_text (uiout, ": ");
|
ui_out_field_string (uiout, "exp", b->exp_string);
|
ui_out_field_string (uiout, "exp", b->exp_string);
|
do_cleanups (ui_out_chain);
|
do_cleanups (ui_out_chain);
|
break;
|
break;
|
case bp_hardware_watchpoint:
|
case bp_hardware_watchpoint:
|
ui_out_text (uiout, "Hardware watchpoint ");
|
ui_out_text (uiout, "Hardware watchpoint ");
|
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt");
|
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt");
|
ui_out_field_int (uiout, "number", b->number);
|
ui_out_field_int (uiout, "number", b->number);
|
ui_out_text (uiout, ": ");
|
ui_out_text (uiout, ": ");
|
ui_out_field_string (uiout, "exp", b->exp_string);
|
ui_out_field_string (uiout, "exp", b->exp_string);
|
do_cleanups (ui_out_chain);
|
do_cleanups (ui_out_chain);
|
break;
|
break;
|
case bp_read_watchpoint:
|
case bp_read_watchpoint:
|
ui_out_text (uiout, "Hardware read watchpoint ");
|
ui_out_text (uiout, "Hardware read watchpoint ");
|
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-rwpt");
|
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-rwpt");
|
ui_out_field_int (uiout, "number", b->number);
|
ui_out_field_int (uiout, "number", b->number);
|
ui_out_text (uiout, ": ");
|
ui_out_text (uiout, ": ");
|
ui_out_field_string (uiout, "exp", b->exp_string);
|
ui_out_field_string (uiout, "exp", b->exp_string);
|
do_cleanups (ui_out_chain);
|
do_cleanups (ui_out_chain);
|
break;
|
break;
|
case bp_access_watchpoint:
|
case bp_access_watchpoint:
|
ui_out_text (uiout, "Hardware access (read/write) watchpoint ");
|
ui_out_text (uiout, "Hardware access (read/write) watchpoint ");
|
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-awpt");
|
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-awpt");
|
ui_out_field_int (uiout, "number", b->number);
|
ui_out_field_int (uiout, "number", b->number);
|
ui_out_text (uiout, ": ");
|
ui_out_text (uiout, ": ");
|
ui_out_field_string (uiout, "exp", b->exp_string);
|
ui_out_field_string (uiout, "exp", b->exp_string);
|
do_cleanups (ui_out_chain);
|
do_cleanups (ui_out_chain);
|
break;
|
break;
|
case bp_breakpoint:
|
case bp_breakpoint:
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
{
|
{
|
say_where = 0;
|
say_where = 0;
|
break;
|
break;
|
}
|
}
|
if (b->disposition == disp_del)
|
if (b->disposition == disp_del)
|
printf_filtered (_("Temporary breakpoint"));
|
printf_filtered (_("Temporary breakpoint"));
|
else
|
else
|
printf_filtered (_("Breakpoint"));
|
printf_filtered (_("Breakpoint"));
|
printf_filtered (_(" %d"), b->number);
|
printf_filtered (_(" %d"), b->number);
|
say_where = 1;
|
say_where = 1;
|
break;
|
break;
|
case bp_hardware_breakpoint:
|
case bp_hardware_breakpoint:
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
{
|
{
|
say_where = 0;
|
say_where = 0;
|
break;
|
break;
|
}
|
}
|
printf_filtered (_("Hardware assisted breakpoint %d"), b->number);
|
printf_filtered (_("Hardware assisted breakpoint %d"), b->number);
|
say_where = 1;
|
say_where = 1;
|
break;
|
break;
|
case bp_tracepoint:
|
case bp_tracepoint:
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
{
|
{
|
say_where = 0;
|
say_where = 0;
|
break;
|
break;
|
}
|
}
|
printf_filtered (_("Tracepoint"));
|
printf_filtered (_("Tracepoint"));
|
printf_filtered (_(" %d"), b->number);
|
printf_filtered (_(" %d"), b->number);
|
say_where = 1;
|
say_where = 1;
|
break;
|
break;
|
case bp_fast_tracepoint:
|
case bp_fast_tracepoint:
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
{
|
{
|
say_where = 0;
|
say_where = 0;
|
break;
|
break;
|
}
|
}
|
printf_filtered (_("Fast tracepoint"));
|
printf_filtered (_("Fast tracepoint"));
|
printf_filtered (_(" %d"), b->number);
|
printf_filtered (_(" %d"), b->number);
|
say_where = 1;
|
say_where = 1;
|
break;
|
break;
|
|
|
case bp_until:
|
case bp_until:
|
case bp_finish:
|
case bp_finish:
|
case bp_longjmp:
|
case bp_longjmp:
|
case bp_longjmp_resume:
|
case bp_longjmp_resume:
|
case bp_step_resume:
|
case bp_step_resume:
|
case bp_call_dummy:
|
case bp_call_dummy:
|
case bp_watchpoint_scope:
|
case bp_watchpoint_scope:
|
case bp_shlib_event:
|
case bp_shlib_event:
|
case bp_thread_event:
|
case bp_thread_event:
|
case bp_overlay_event:
|
case bp_overlay_event:
|
case bp_jit_event:
|
case bp_jit_event:
|
case bp_longjmp_master:
|
case bp_longjmp_master:
|
break;
|
break;
|
}
|
}
|
|
|
if (say_where)
|
if (say_where)
|
{
|
{
|
/* i18n: cagney/2005-02-11: Below needs to be merged into a
|
/* i18n: cagney/2005-02-11: Below needs to be merged into a
|
single string. */
|
single string. */
|
if (b->loc == NULL)
|
if (b->loc == NULL)
|
{
|
{
|
printf_filtered (_(" (%s) pending."), b->addr_string);
|
printf_filtered (_(" (%s) pending."), b->addr_string);
|
}
|
}
|
else
|
else
|
{
|
{
|
if (opts.addressprint || b->source_file == NULL)
|
if (opts.addressprint || b->source_file == NULL)
|
{
|
{
|
printf_filtered (" at ");
|
printf_filtered (" at ");
|
fputs_filtered (paddress (b->loc->gdbarch, b->loc->address),
|
fputs_filtered (paddress (b->loc->gdbarch, b->loc->address),
|
gdb_stdout);
|
gdb_stdout);
|
}
|
}
|
if (b->source_file)
|
if (b->source_file)
|
printf_filtered (": file %s, line %d.",
|
printf_filtered (": file %s, line %d.",
|
b->source_file, b->line_number);
|
b->source_file, b->line_number);
|
|
|
if (b->loc->next)
|
if (b->loc->next)
|
{
|
{
|
struct bp_location *loc = b->loc;
|
struct bp_location *loc = b->loc;
|
int n = 0;
|
int n = 0;
|
for (; loc; loc = loc->next)
|
for (; loc; loc = loc->next)
|
++n;
|
++n;
|
printf_filtered (" (%d locations)", n);
|
printf_filtered (" (%d locations)", n);
|
}
|
}
|
|
|
}
|
}
|
}
|
}
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
return;
|
return;
|
printf_filtered ("\n");
|
printf_filtered ("\n");
|
}
|
}
|
|
|
|
|
static struct bp_location *
|
static struct bp_location *
|
add_location_to_breakpoint (struct breakpoint *b,
|
add_location_to_breakpoint (struct breakpoint *b,
|
const struct symtab_and_line *sal)
|
const struct symtab_and_line *sal)
|
{
|
{
|
struct bp_location *loc, **tmp;
|
struct bp_location *loc, **tmp;
|
|
|
loc = allocate_bp_location (b);
|
loc = allocate_bp_location (b);
|
for (tmp = &(b->loc); *tmp != NULL; tmp = &((*tmp)->next))
|
for (tmp = &(b->loc); *tmp != NULL; tmp = &((*tmp)->next))
|
;
|
;
|
*tmp = loc;
|
*tmp = loc;
|
loc->gdbarch = get_sal_arch (*sal);
|
loc->gdbarch = get_sal_arch (*sal);
|
if (!loc->gdbarch)
|
if (!loc->gdbarch)
|
loc->gdbarch = b->gdbarch;
|
loc->gdbarch = b->gdbarch;
|
loc->requested_address = sal->pc;
|
loc->requested_address = sal->pc;
|
loc->address = adjust_breakpoint_address (loc->gdbarch,
|
loc->address = adjust_breakpoint_address (loc->gdbarch,
|
loc->requested_address, b->type);
|
loc->requested_address, b->type);
|
loc->pspace = sal->pspace;
|
loc->pspace = sal->pspace;
|
gdb_assert (loc->pspace != NULL);
|
gdb_assert (loc->pspace != NULL);
|
loc->section = sal->section;
|
loc->section = sal->section;
|
|
|
set_breakpoint_location_function (loc);
|
set_breakpoint_location_function (loc);
|
return loc;
|
return loc;
|
}
|
}
|
|
|
|
|
/* Return 1 if LOC is pointing to a permanent breakpoint,
|
/* Return 1 if LOC is pointing to a permanent breakpoint,
|
return 0 otherwise. */
|
return 0 otherwise. */
|
|
|
static int
|
static int
|
bp_loc_is_permanent (struct bp_location *loc)
|
bp_loc_is_permanent (struct bp_location *loc)
|
{
|
{
|
int len;
|
int len;
|
CORE_ADDR addr;
|
CORE_ADDR addr;
|
const gdb_byte *brk;
|
const gdb_byte *brk;
|
gdb_byte *target_mem;
|
gdb_byte *target_mem;
|
struct cleanup *cleanup;
|
struct cleanup *cleanup;
|
int retval = 0;
|
int retval = 0;
|
|
|
gdb_assert (loc != NULL);
|
gdb_assert (loc != NULL);
|
|
|
addr = loc->address;
|
addr = loc->address;
|
brk = gdbarch_breakpoint_from_pc (loc->gdbarch, &addr, &len);
|
brk = gdbarch_breakpoint_from_pc (loc->gdbarch, &addr, &len);
|
|
|
/* Software breakpoints unsupported? */
|
/* Software breakpoints unsupported? */
|
if (brk == NULL)
|
if (brk == NULL)
|
return 0;
|
return 0;
|
|
|
target_mem = alloca (len);
|
target_mem = alloca (len);
|
|
|
/* Enable the automatic memory restoration from breakpoints while
|
/* Enable the automatic memory restoration from breakpoints while
|
we read the memory. Otherwise we could say about our temporary
|
we read the memory. Otherwise we could say about our temporary
|
breakpoints they are permanent. */
|
breakpoints they are permanent. */
|
cleanup = save_current_space_and_thread ();
|
cleanup = save_current_space_and_thread ();
|
|
|
switch_to_program_space_and_thread (loc->pspace);
|
switch_to_program_space_and_thread (loc->pspace);
|
make_show_memory_breakpoints_cleanup (0);
|
make_show_memory_breakpoints_cleanup (0);
|
|
|
if (target_read_memory (loc->address, target_mem, len) == 0
|
if (target_read_memory (loc->address, target_mem, len) == 0
|
&& memcmp (target_mem, brk, len) == 0)
|
&& memcmp (target_mem, brk, len) == 0)
|
retval = 1;
|
retval = 1;
|
|
|
do_cleanups (cleanup);
|
do_cleanups (cleanup);
|
|
|
return retval;
|
return retval;
|
}
|
}
|
|
|
|
|
|
|
/* Create a breakpoint with SAL as location. Use ADDR_STRING
|
/* Create a breakpoint with SAL as location. Use ADDR_STRING
|
as textual description of the location, and COND_STRING
|
as textual description of the location, and COND_STRING
|
as condition expression. */
|
as condition expression. */
|
|
|
static void
|
static void
|
create_breakpoint (struct gdbarch *gdbarch,
|
create_breakpoint (struct gdbarch *gdbarch,
|
struct symtabs_and_lines sals, char *addr_string,
|
struct symtabs_and_lines sals, char *addr_string,
|
char *cond_string,
|
char *cond_string,
|
enum bptype type, enum bpdisp disposition,
|
enum bptype type, enum bpdisp disposition,
|
int thread, int task, int ignore_count,
|
int thread, int task, int ignore_count,
|
struct breakpoint_ops *ops, int from_tty, int enabled)
|
struct breakpoint_ops *ops, int from_tty, int enabled)
|
{
|
{
|
struct breakpoint *b = NULL;
|
struct breakpoint *b = NULL;
|
int i;
|
int i;
|
|
|
if (type == bp_hardware_breakpoint)
|
if (type == bp_hardware_breakpoint)
|
{
|
{
|
int i = hw_breakpoint_used_count ();
|
int i = hw_breakpoint_used_count ();
|
int target_resources_ok =
|
int target_resources_ok =
|
target_can_use_hardware_watchpoint (bp_hardware_breakpoint,
|
target_can_use_hardware_watchpoint (bp_hardware_breakpoint,
|
i + 1, 0);
|
i + 1, 0);
|
if (target_resources_ok == 0)
|
if (target_resources_ok == 0)
|
error (_("No hardware breakpoint support in the target."));
|
error (_("No hardware breakpoint support in the target."));
|
else if (target_resources_ok < 0)
|
else if (target_resources_ok < 0)
|
error (_("Hardware breakpoints used exceeds limit."));
|
error (_("Hardware breakpoints used exceeds limit."));
|
}
|
}
|
|
|
gdb_assert (sals.nelts > 0);
|
gdb_assert (sals.nelts > 0);
|
|
|
for (i = 0; i < sals.nelts; ++i)
|
for (i = 0; i < sals.nelts; ++i)
|
{
|
{
|
struct symtab_and_line sal = sals.sals[i];
|
struct symtab_and_line sal = sals.sals[i];
|
struct bp_location *loc;
|
struct bp_location *loc;
|
|
|
if (from_tty)
|
if (from_tty)
|
{
|
{
|
struct gdbarch *loc_gdbarch = get_sal_arch (sal);
|
struct gdbarch *loc_gdbarch = get_sal_arch (sal);
|
if (!loc_gdbarch)
|
if (!loc_gdbarch)
|
loc_gdbarch = gdbarch;
|
loc_gdbarch = gdbarch;
|
|
|
describe_other_breakpoints (loc_gdbarch,
|
describe_other_breakpoints (loc_gdbarch,
|
sal.pspace, sal.pc, sal.section, thread);
|
sal.pspace, sal.pc, sal.section, thread);
|
}
|
}
|
|
|
if (i == 0)
|
if (i == 0)
|
{
|
{
|
b = set_raw_breakpoint (gdbarch, sal, type);
|
b = set_raw_breakpoint (gdbarch, sal, type);
|
set_breakpoint_count (breakpoint_count + 1);
|
set_breakpoint_count (breakpoint_count + 1);
|
b->number = breakpoint_count;
|
b->number = breakpoint_count;
|
b->thread = thread;
|
b->thread = thread;
|
b->task = task;
|
b->task = task;
|
|
|
b->cond_string = cond_string;
|
b->cond_string = cond_string;
|
b->ignore_count = ignore_count;
|
b->ignore_count = ignore_count;
|
b->enable_state = enabled ? bp_enabled : bp_disabled;
|
b->enable_state = enabled ? bp_enabled : bp_disabled;
|
b->disposition = disposition;
|
b->disposition = disposition;
|
|
|
b->pspace = sals.sals[0].pspace;
|
b->pspace = sals.sals[0].pspace;
|
|
|
if (enabled && b->pspace->executing_startup
|
if (enabled && b->pspace->executing_startup
|
&& (b->type == bp_breakpoint
|
&& (b->type == bp_breakpoint
|
|| b->type == bp_hardware_breakpoint))
|
|| b->type == bp_hardware_breakpoint))
|
b->enable_state = bp_startup_disabled;
|
b->enable_state = bp_startup_disabled;
|
|
|
loc = b->loc;
|
loc = b->loc;
|
}
|
}
|
else
|
else
|
{
|
{
|
loc = add_location_to_breakpoint (b, &sal);
|
loc = add_location_to_breakpoint (b, &sal);
|
}
|
}
|
|
|
if (bp_loc_is_permanent (loc))
|
if (bp_loc_is_permanent (loc))
|
make_breakpoint_permanent (b);
|
make_breakpoint_permanent (b);
|
|
|
if (b->cond_string)
|
if (b->cond_string)
|
{
|
{
|
char *arg = b->cond_string;
|
char *arg = b->cond_string;
|
loc->cond = parse_exp_1 (&arg, block_for_pc (loc->address), 0);
|
loc->cond = parse_exp_1 (&arg, block_for_pc (loc->address), 0);
|
if (*arg)
|
if (*arg)
|
error (_("Garbage %s follows condition"), arg);
|
error (_("Garbage %s follows condition"), arg);
|
}
|
}
|
}
|
}
|
|
|
if (addr_string)
|
if (addr_string)
|
b->addr_string = addr_string;
|
b->addr_string = addr_string;
|
else
|
else
|
/* addr_string has to be used or breakpoint_re_set will delete
|
/* addr_string has to be used or breakpoint_re_set will delete
|
me. */
|
me. */
|
b->addr_string
|
b->addr_string
|
= xstrprintf ("*%s", paddress (b->loc->gdbarch, b->loc->address));
|
= xstrprintf ("*%s", paddress (b->loc->gdbarch, b->loc->address));
|
|
|
b->ops = ops;
|
b->ops = ops;
|
mention (b);
|
mention (b);
|
}
|
}
|
|
|
/* Remove element at INDEX_TO_REMOVE from SAL, shifting other
|
/* Remove element at INDEX_TO_REMOVE from SAL, shifting other
|
elements to fill the void space. */
|
elements to fill the void space. */
|
static void
|
static void
|
remove_sal (struct symtabs_and_lines *sal, int index_to_remove)
|
remove_sal (struct symtabs_and_lines *sal, int index_to_remove)
|
{
|
{
|
int i = index_to_remove+1;
|
int i = index_to_remove+1;
|
int last_index = sal->nelts-1;
|
int last_index = sal->nelts-1;
|
|
|
for (;i <= last_index; ++i)
|
for (;i <= last_index; ++i)
|
sal->sals[i-1] = sal->sals[i];
|
sal->sals[i-1] = sal->sals[i];
|
|
|
--(sal->nelts);
|
--(sal->nelts);
|
}
|
}
|
|
|
/* If appropriate, obtains all sals that correspond to the same file
|
/* If appropriate, obtains all sals that correspond to the same file
|
and line as SAL, in all program spaces. Users debugging with IDEs,
|
and line as SAL, in all program spaces. Users debugging with IDEs,
|
will want to set a breakpoint at foo.c:line, and not really care
|
will want to set a breakpoint at foo.c:line, and not really care
|
about program spaces. This is done only if SAL does not have
|
about program spaces. This is done only if SAL does not have
|
explicit PC and has line and file information. If we got just a
|
explicit PC and has line and file information. If we got just a
|
single expanded sal, return the original.
|
single expanded sal, return the original.
|
|
|
Otherwise, if SAL.explicit_line is not set, filter out all sals for
|
Otherwise, if SAL.explicit_line is not set, filter out all sals for
|
which the name of enclosing function is different from SAL. This
|
which the name of enclosing function is different from SAL. This
|
makes sure that if we have breakpoint originally set in template
|
makes sure that if we have breakpoint originally set in template
|
instantiation, say foo<int>(), we won't expand SAL to locations at
|
instantiation, say foo<int>(), we won't expand SAL to locations at
|
the same line in all existing instantiations of 'foo'. */
|
the same line in all existing instantiations of 'foo'. */
|
|
|
static struct symtabs_and_lines
|
static struct symtabs_and_lines
|
expand_line_sal_maybe (struct symtab_and_line sal)
|
expand_line_sal_maybe (struct symtab_and_line sal)
|
{
|
{
|
struct symtabs_and_lines expanded;
|
struct symtabs_and_lines expanded;
|
CORE_ADDR original_pc = sal.pc;
|
CORE_ADDR original_pc = sal.pc;
|
char *original_function = NULL;
|
char *original_function = NULL;
|
int found;
|
int found;
|
int i;
|
int i;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
|
|
/* If we have explicit pc, don't expand.
|
/* If we have explicit pc, don't expand.
|
If we have no line number, we can't expand. */
|
If we have no line number, we can't expand. */
|
if (sal.explicit_pc || sal.line == 0 || sal.symtab == NULL)
|
if (sal.explicit_pc || sal.line == 0 || sal.symtab == NULL)
|
{
|
{
|
expanded.nelts = 1;
|
expanded.nelts = 1;
|
expanded.sals = xmalloc (sizeof (struct symtab_and_line));
|
expanded.sals = xmalloc (sizeof (struct symtab_and_line));
|
expanded.sals[0] = sal;
|
expanded.sals[0] = sal;
|
return expanded;
|
return expanded;
|
}
|
}
|
|
|
sal.pc = 0;
|
sal.pc = 0;
|
|
|
old_chain = save_current_space_and_thread ();
|
old_chain = save_current_space_and_thread ();
|
|
|
switch_to_program_space_and_thread (sal.pspace);
|
switch_to_program_space_and_thread (sal.pspace);
|
|
|
find_pc_partial_function (original_pc, &original_function, NULL, NULL);
|
find_pc_partial_function (original_pc, &original_function, NULL, NULL);
|
|
|
/* Note that expand_line_sal visits *all* program spaces. */
|
/* Note that expand_line_sal visits *all* program spaces. */
|
expanded = expand_line_sal (sal);
|
expanded = expand_line_sal (sal);
|
|
|
if (expanded.nelts == 1)
|
if (expanded.nelts == 1)
|
{
|
{
|
/* We had one sal, we got one sal. Return that sal, adjusting it
|
/* We had one sal, we got one sal. Return that sal, adjusting it
|
past the function prologue if necessary. */
|
past the function prologue if necessary. */
|
xfree (expanded.sals);
|
xfree (expanded.sals);
|
expanded.nelts = 1;
|
expanded.nelts = 1;
|
expanded.sals = xmalloc (sizeof (struct symtab_and_line));
|
expanded.sals = xmalloc (sizeof (struct symtab_and_line));
|
sal.pc = original_pc;
|
sal.pc = original_pc;
|
expanded.sals[0] = sal;
|
expanded.sals[0] = sal;
|
skip_prologue_sal (&expanded.sals[0]);
|
skip_prologue_sal (&expanded.sals[0]);
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
return expanded;
|
return expanded;
|
}
|
}
|
|
|
if (!sal.explicit_line)
|
if (!sal.explicit_line)
|
{
|
{
|
CORE_ADDR func_addr, func_end;
|
CORE_ADDR func_addr, func_end;
|
for (i = 0; i < expanded.nelts; ++i)
|
for (i = 0; i < expanded.nelts; ++i)
|
{
|
{
|
CORE_ADDR pc = expanded.sals[i].pc;
|
CORE_ADDR pc = expanded.sals[i].pc;
|
char *this_function;
|
char *this_function;
|
|
|
/* We need to switch threads as well since we're about to
|
/* We need to switch threads as well since we're about to
|
read memory. */
|
read memory. */
|
switch_to_program_space_and_thread (expanded.sals[i].pspace);
|
switch_to_program_space_and_thread (expanded.sals[i].pspace);
|
|
|
if (find_pc_partial_function (pc, &this_function,
|
if (find_pc_partial_function (pc, &this_function,
|
&func_addr, &func_end))
|
&func_addr, &func_end))
|
{
|
{
|
if (this_function
|
if (this_function
|
&& strcmp (this_function, original_function) != 0)
|
&& strcmp (this_function, original_function) != 0)
|
{
|
{
|
remove_sal (&expanded, i);
|
remove_sal (&expanded, i);
|
--i;
|
--i;
|
}
|
}
|
else if (func_addr == pc)
|
else if (func_addr == pc)
|
{
|
{
|
/* We're at beginning of a function, and should
|
/* We're at beginning of a function, and should
|
skip prologue. */
|
skip prologue. */
|
struct symbol *sym = find_pc_function (pc);
|
struct symbol *sym = find_pc_function (pc);
|
if (sym)
|
if (sym)
|
expanded.sals[i] = find_function_start_sal (sym, 1);
|
expanded.sals[i] = find_function_start_sal (sym, 1);
|
else
|
else
|
{
|
{
|
/* Since find_pc_partial_function returned true,
|
/* Since find_pc_partial_function returned true,
|
we should really always find the section here. */
|
we should really always find the section here. */
|
struct obj_section *section = find_pc_section (pc);
|
struct obj_section *section = find_pc_section (pc);
|
if (section)
|
if (section)
|
{
|
{
|
struct gdbarch *gdbarch
|
struct gdbarch *gdbarch
|
= get_objfile_arch (section->objfile);
|
= get_objfile_arch (section->objfile);
|
expanded.sals[i].pc
|
expanded.sals[i].pc
|
= gdbarch_skip_prologue (gdbarch, pc);
|
= gdbarch_skip_prologue (gdbarch, pc);
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
for (i = 0; i < expanded.nelts; ++i)
|
for (i = 0; i < expanded.nelts; ++i)
|
{
|
{
|
/* If this SAL corresponds to a breakpoint inserted using a
|
/* If this SAL corresponds to a breakpoint inserted using a
|
line number, then skip the function prologue if necessary. */
|
line number, then skip the function prologue if necessary. */
|
skip_prologue_sal (&expanded.sals[i]);
|
skip_prologue_sal (&expanded.sals[i]);
|
}
|
}
|
}
|
}
|
|
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
|
|
if (expanded.nelts <= 1)
|
if (expanded.nelts <= 1)
|
{
|
{
|
/* This is un ugly workaround. If we get zero
|
/* This is un ugly workaround. If we get zero
|
expanded sals then something is really wrong.
|
expanded sals then something is really wrong.
|
Fix that by returnign the original sal. */
|
Fix that by returnign the original sal. */
|
xfree (expanded.sals);
|
xfree (expanded.sals);
|
expanded.nelts = 1;
|
expanded.nelts = 1;
|
expanded.sals = xmalloc (sizeof (struct symtab_and_line));
|
expanded.sals = xmalloc (sizeof (struct symtab_and_line));
|
sal.pc = original_pc;
|
sal.pc = original_pc;
|
expanded.sals[0] = sal;
|
expanded.sals[0] = sal;
|
return expanded;
|
return expanded;
|
}
|
}
|
|
|
if (original_pc)
|
if (original_pc)
|
{
|
{
|
found = 0;
|
found = 0;
|
for (i = 0; i < expanded.nelts; ++i)
|
for (i = 0; i < expanded.nelts; ++i)
|
if (expanded.sals[i].pc == original_pc)
|
if (expanded.sals[i].pc == original_pc)
|
{
|
{
|
found = 1;
|
found = 1;
|
break;
|
break;
|
}
|
}
|
gdb_assert (found);
|
gdb_assert (found);
|
}
|
}
|
|
|
return expanded;
|
return expanded;
|
}
|
}
|
|
|
/* Add SALS.nelts breakpoints to the breakpoint table. For each
|
/* Add SALS.nelts breakpoints to the breakpoint table. For each
|
SALS.sal[i] breakpoint, include the corresponding ADDR_STRING[i]
|
SALS.sal[i] breakpoint, include the corresponding ADDR_STRING[i]
|
value. COND_STRING, if not NULL, specified the condition to be
|
value. COND_STRING, if not NULL, specified the condition to be
|
used for all breakpoints. Essentially the only case where
|
used for all breakpoints. Essentially the only case where
|
SALS.nelts is not 1 is when we set a breakpoint on an overloaded
|
SALS.nelts is not 1 is when we set a breakpoint on an overloaded
|
function. In that case, it's still not possible to specify
|
function. In that case, it's still not possible to specify
|
separate conditions for different overloaded functions, so
|
separate conditions for different overloaded functions, so
|
we take just a single condition string.
|
we take just a single condition string.
|
|
|
NOTE: If the function succeeds, the caller is expected to cleanup
|
NOTE: If the function succeeds, the caller is expected to cleanup
|
the arrays ADDR_STRING, COND_STRING, and SALS (but not the
|
the arrays ADDR_STRING, COND_STRING, and SALS (but not the
|
array contents). If the function fails (error() is called), the
|
array contents). If the function fails (error() is called), the
|
caller is expected to cleanups both the ADDR_STRING, COND_STRING,
|
caller is expected to cleanups both the ADDR_STRING, COND_STRING,
|
COND and SALS arrays and each of those arrays contents. */
|
COND and SALS arrays and each of those arrays contents. */
|
|
|
static void
|
static void
|
create_breakpoints (struct gdbarch *gdbarch,
|
create_breakpoints (struct gdbarch *gdbarch,
|
struct symtabs_and_lines sals, char **addr_string,
|
struct symtabs_and_lines sals, char **addr_string,
|
char *cond_string,
|
char *cond_string,
|
enum bptype type, enum bpdisp disposition,
|
enum bptype type, enum bpdisp disposition,
|
int thread, int task, int ignore_count,
|
int thread, int task, int ignore_count,
|
struct breakpoint_ops *ops, int from_tty,
|
struct breakpoint_ops *ops, int from_tty,
|
int enabled)
|
int enabled)
|
{
|
{
|
int i;
|
int i;
|
for (i = 0; i < sals.nelts; ++i)
|
for (i = 0; i < sals.nelts; ++i)
|
{
|
{
|
struct symtabs_and_lines expanded =
|
struct symtabs_and_lines expanded =
|
expand_line_sal_maybe (sals.sals[i]);
|
expand_line_sal_maybe (sals.sals[i]);
|
|
|
create_breakpoint (gdbarch, expanded, addr_string[i],
|
create_breakpoint (gdbarch, expanded, addr_string[i],
|
cond_string, type, disposition,
|
cond_string, type, disposition,
|
thread, task, ignore_count, ops, from_tty, enabled);
|
thread, task, ignore_count, ops, from_tty, enabled);
|
}
|
}
|
}
|
}
|
|
|
/* Parse ARG which is assumed to be a SAL specification possibly
|
/* Parse ARG which is assumed to be a SAL specification possibly
|
followed by conditionals. On return, SALS contains an array of SAL
|
followed by conditionals. On return, SALS contains an array of SAL
|
addresses found. ADDR_STRING contains a vector of (canonical)
|
addresses found. ADDR_STRING contains a vector of (canonical)
|
address strings. ARG points to the end of the SAL. */
|
address strings. ARG points to the end of the SAL. */
|
|
|
static void
|
static void
|
parse_breakpoint_sals (char **address,
|
parse_breakpoint_sals (char **address,
|
struct symtabs_and_lines *sals,
|
struct symtabs_and_lines *sals,
|
char ***addr_string,
|
char ***addr_string,
|
int *not_found_ptr)
|
int *not_found_ptr)
|
{
|
{
|
char *addr_start = *address;
|
char *addr_start = *address;
|
*addr_string = NULL;
|
*addr_string = NULL;
|
/* If no arg given, or if first arg is 'if ', use the default
|
/* If no arg given, or if first arg is 'if ', use the default
|
breakpoint. */
|
breakpoint. */
|
if ((*address) == NULL
|
if ((*address) == NULL
|
|| (strncmp ((*address), "if", 2) == 0 && isspace ((*address)[2])))
|
|| (strncmp ((*address), "if", 2) == 0 && isspace ((*address)[2])))
|
{
|
{
|
if (default_breakpoint_valid)
|
if (default_breakpoint_valid)
|
{
|
{
|
struct symtab_and_line sal;
|
struct symtab_and_line sal;
|
init_sal (&sal); /* initialize to zeroes */
|
init_sal (&sal); /* initialize to zeroes */
|
sals->sals = (struct symtab_and_line *)
|
sals->sals = (struct symtab_and_line *)
|
xmalloc (sizeof (struct symtab_and_line));
|
xmalloc (sizeof (struct symtab_and_line));
|
sal.pc = default_breakpoint_address;
|
sal.pc = default_breakpoint_address;
|
sal.line = default_breakpoint_line;
|
sal.line = default_breakpoint_line;
|
sal.symtab = default_breakpoint_symtab;
|
sal.symtab = default_breakpoint_symtab;
|
sal.pspace = default_breakpoint_pspace;
|
sal.pspace = default_breakpoint_pspace;
|
sal.section = find_pc_overlay (sal.pc);
|
sal.section = find_pc_overlay (sal.pc);
|
|
|
/* "break" without arguments is equivalent to "break *PC" where PC is
|
/* "break" without arguments is equivalent to "break *PC" where PC is
|
the default_breakpoint_address. So make sure to set
|
the default_breakpoint_address. So make sure to set
|
sal.explicit_pc to prevent GDB from trying to expand the list of
|
sal.explicit_pc to prevent GDB from trying to expand the list of
|
sals to include all other instances with the same symtab and line.
|
sals to include all other instances with the same symtab and line.
|
*/
|
*/
|
sal.explicit_pc = 1;
|
sal.explicit_pc = 1;
|
|
|
sals->sals[0] = sal;
|
sals->sals[0] = sal;
|
sals->nelts = 1;
|
sals->nelts = 1;
|
}
|
}
|
else
|
else
|
error (_("No default breakpoint address now."));
|
error (_("No default breakpoint address now."));
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Force almost all breakpoints to be in terms of the
|
/* Force almost all breakpoints to be in terms of the
|
current_source_symtab (which is decode_line_1's default). This
|
current_source_symtab (which is decode_line_1's default). This
|
should produce the results we want almost all of the time while
|
should produce the results we want almost all of the time while
|
leaving default_breakpoint_* alone.
|
leaving default_breakpoint_* alone.
|
ObjC: However, don't match an Objective-C method name which
|
ObjC: However, don't match an Objective-C method name which
|
may have a '+' or '-' succeeded by a '[' */
|
may have a '+' or '-' succeeded by a '[' */
|
|
|
struct symtab_and_line cursal = get_current_source_symtab_and_line ();
|
struct symtab_and_line cursal = get_current_source_symtab_and_line ();
|
|
|
if (default_breakpoint_valid
|
if (default_breakpoint_valid
|
&& (!cursal.symtab
|
&& (!cursal.symtab
|
|| ((strchr ("+-", (*address)[0]) != NULL)
|
|| ((strchr ("+-", (*address)[0]) != NULL)
|
&& ((*address)[1] != '['))))
|
&& ((*address)[1] != '['))))
|
*sals = decode_line_1 (address, 1, default_breakpoint_symtab,
|
*sals = decode_line_1 (address, 1, default_breakpoint_symtab,
|
default_breakpoint_line, addr_string,
|
default_breakpoint_line, addr_string,
|
not_found_ptr);
|
not_found_ptr);
|
else
|
else
|
*sals = decode_line_1 (address, 1, (struct symtab *) NULL, 0,
|
*sals = decode_line_1 (address, 1, (struct symtab *) NULL, 0,
|
addr_string, not_found_ptr);
|
addr_string, not_found_ptr);
|
}
|
}
|
/* For any SAL that didn't have a canonical string, fill one in. */
|
/* For any SAL that didn't have a canonical string, fill one in. */
|
if (sals->nelts > 0 && *addr_string == NULL)
|
if (sals->nelts > 0 && *addr_string == NULL)
|
*addr_string = xcalloc (sals->nelts, sizeof (char **));
|
*addr_string = xcalloc (sals->nelts, sizeof (char **));
|
if (addr_start != (*address))
|
if (addr_start != (*address))
|
{
|
{
|
int i;
|
int i;
|
for (i = 0; i < sals->nelts; i++)
|
for (i = 0; i < sals->nelts; i++)
|
{
|
{
|
/* Add the string if not present. */
|
/* Add the string if not present. */
|
if ((*addr_string)[i] == NULL)
|
if ((*addr_string)[i] == NULL)
|
(*addr_string)[i] = savestring (addr_start, (*address) - addr_start);
|
(*addr_string)[i] = savestring (addr_start, (*address) - addr_start);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Convert each SAL into a real PC. Verify that the PC can be
|
/* Convert each SAL into a real PC. Verify that the PC can be
|
inserted as a breakpoint. If it can't throw an error. */
|
inserted as a breakpoint. If it can't throw an error. */
|
|
|
static void
|
static void
|
breakpoint_sals_to_pc (struct symtabs_and_lines *sals,
|
breakpoint_sals_to_pc (struct symtabs_and_lines *sals,
|
char *address)
|
char *address)
|
{
|
{
|
int i;
|
int i;
|
for (i = 0; i < sals->nelts; i++)
|
for (i = 0; i < sals->nelts; i++)
|
resolve_sal_pc (&sals->sals[i]);
|
resolve_sal_pc (&sals->sals[i]);
|
}
|
}
|
|
|
/* Fast tracepoints may have restrictions on valid locations. For
|
/* Fast tracepoints may have restrictions on valid locations. For
|
instance, a fast tracepoint using a jump instead of a trap will
|
instance, a fast tracepoint using a jump instead of a trap will
|
likely have to overwrite more bytes than a trap would, and so can
|
likely have to overwrite more bytes than a trap would, and so can
|
only be placed where the instruction is longer than the jump, or a
|
only be placed where the instruction is longer than the jump, or a
|
multi-instruction sequence does not have a jump into the middle of
|
multi-instruction sequence does not have a jump into the middle of
|
it, etc. */
|
it, etc. */
|
|
|
static void
|
static void
|
check_fast_tracepoint_sals (struct gdbarch *gdbarch,
|
check_fast_tracepoint_sals (struct gdbarch *gdbarch,
|
struct symtabs_and_lines *sals)
|
struct symtabs_and_lines *sals)
|
{
|
{
|
int i, rslt;
|
int i, rslt;
|
struct symtab_and_line *sal;
|
struct symtab_and_line *sal;
|
char *msg;
|
char *msg;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
|
|
for (i = 0; i < sals->nelts; i++)
|
for (i = 0; i < sals->nelts; i++)
|
{
|
{
|
sal = &sals->sals[i];
|
sal = &sals->sals[i];
|
|
|
rslt = gdbarch_fast_tracepoint_valid_at (gdbarch, sal->pc,
|
rslt = gdbarch_fast_tracepoint_valid_at (gdbarch, sal->pc,
|
NULL, &msg);
|
NULL, &msg);
|
old_chain = make_cleanup (xfree, msg);
|
old_chain = make_cleanup (xfree, msg);
|
|
|
if (!rslt)
|
if (!rslt)
|
error (_("May not have a fast tracepoint at 0x%s%s"),
|
error (_("May not have a fast tracepoint at 0x%s%s"),
|
paddress (gdbarch, sal->pc), (msg ? msg : ""));
|
paddress (gdbarch, sal->pc), (msg ? msg : ""));
|
|
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
}
|
}
|
}
|
}
|
|
|
static void
|
static void
|
do_captured_parse_breakpoint (struct ui_out *ui, void *data)
|
do_captured_parse_breakpoint (struct ui_out *ui, void *data)
|
{
|
{
|
struct captured_parse_breakpoint_args *args = data;
|
struct captured_parse_breakpoint_args *args = data;
|
|
|
parse_breakpoint_sals (args->arg_p, args->sals_p, args->addr_string_p,
|
parse_breakpoint_sals (args->arg_p, args->sals_p, args->addr_string_p,
|
args->not_found_ptr);
|
args->not_found_ptr);
|
}
|
}
|
|
|
/* Given TOK, a string specification of condition and thread, as
|
/* Given TOK, a string specification of condition and thread, as
|
accepted by the 'break' command, extract the condition
|
accepted by the 'break' command, extract the condition
|
string and thread number and set *COND_STRING and *THREAD.
|
string and thread number and set *COND_STRING and *THREAD.
|
PC identifies the context at which the condition should be parsed.
|
PC identifies the context at which the condition should be parsed.
|
If no condition is found, *COND_STRING is set to NULL.
|
If no condition is found, *COND_STRING is set to NULL.
|
If no thread is found, *THREAD is set to -1. */
|
If no thread is found, *THREAD is set to -1. */
|
static void
|
static void
|
find_condition_and_thread (char *tok, CORE_ADDR pc,
|
find_condition_and_thread (char *tok, CORE_ADDR pc,
|
char **cond_string, int *thread, int *task)
|
char **cond_string, int *thread, int *task)
|
{
|
{
|
*cond_string = NULL;
|
*cond_string = NULL;
|
*thread = -1;
|
*thread = -1;
|
while (tok && *tok)
|
while (tok && *tok)
|
{
|
{
|
char *end_tok;
|
char *end_tok;
|
int toklen;
|
int toklen;
|
char *cond_start = NULL;
|
char *cond_start = NULL;
|
char *cond_end = NULL;
|
char *cond_end = NULL;
|
while (*tok == ' ' || *tok == '\t')
|
while (*tok == ' ' || *tok == '\t')
|
tok++;
|
tok++;
|
|
|
end_tok = tok;
|
end_tok = tok;
|
|
|
while (*end_tok != ' ' && *end_tok != '\t' && *end_tok != '\000')
|
while (*end_tok != ' ' && *end_tok != '\t' && *end_tok != '\000')
|
end_tok++;
|
end_tok++;
|
|
|
toklen = end_tok - tok;
|
toklen = end_tok - tok;
|
|
|
if (toklen >= 1 && strncmp (tok, "if", toklen) == 0)
|
if (toklen >= 1 && strncmp (tok, "if", toklen) == 0)
|
{
|
{
|
struct expression *expr;
|
struct expression *expr;
|
|
|
tok = cond_start = end_tok + 1;
|
tok = cond_start = end_tok + 1;
|
expr = parse_exp_1 (&tok, block_for_pc (pc), 0);
|
expr = parse_exp_1 (&tok, block_for_pc (pc), 0);
|
xfree (expr);
|
xfree (expr);
|
cond_end = tok;
|
cond_end = tok;
|
*cond_string = savestring (cond_start,
|
*cond_string = savestring (cond_start,
|
cond_end - cond_start);
|
cond_end - cond_start);
|
}
|
}
|
else if (toklen >= 1 && strncmp (tok, "thread", toklen) == 0)
|
else if (toklen >= 1 && strncmp (tok, "thread", toklen) == 0)
|
{
|
{
|
char *tmptok;
|
char *tmptok;
|
|
|
tok = end_tok + 1;
|
tok = end_tok + 1;
|
tmptok = tok;
|
tmptok = tok;
|
*thread = strtol (tok, &tok, 0);
|
*thread = strtol (tok, &tok, 0);
|
if (tok == tmptok)
|
if (tok == tmptok)
|
error (_("Junk after thread keyword."));
|
error (_("Junk after thread keyword."));
|
if (!valid_thread_id (*thread))
|
if (!valid_thread_id (*thread))
|
error (_("Unknown thread %d."), *thread);
|
error (_("Unknown thread %d."), *thread);
|
}
|
}
|
else if (toklen >= 1 && strncmp (tok, "task", toklen) == 0)
|
else if (toklen >= 1 && strncmp (tok, "task", toklen) == 0)
|
{
|
{
|
char *tmptok;
|
char *tmptok;
|
|
|
tok = end_tok + 1;
|
tok = end_tok + 1;
|
tmptok = tok;
|
tmptok = tok;
|
*task = strtol (tok, &tok, 0);
|
*task = strtol (tok, &tok, 0);
|
if (tok == tmptok)
|
if (tok == tmptok)
|
error (_("Junk after task keyword."));
|
error (_("Junk after task keyword."));
|
if (!valid_task_id (*task))
|
if (!valid_task_id (*task))
|
error (_("Unknown task %d."), *task);
|
error (_("Unknown task %d."), *task);
|
}
|
}
|
else
|
else
|
error (_("Junk at end of arguments."));
|
error (_("Junk at end of arguments."));
|
}
|
}
|
}
|
}
|
|
|
/* Set a breakpoint. This function is shared between CLI and MI
|
/* Set a breakpoint. This function is shared between CLI and MI
|
functions for setting a breakpoint. This function has two major
|
functions for setting a breakpoint. This function has two major
|
modes of operations, selected by the PARSE_CONDITION_AND_THREAD
|
modes of operations, selected by the PARSE_CONDITION_AND_THREAD
|
parameter. If non-zero, the function will parse arg, extracting
|
parameter. If non-zero, the function will parse arg, extracting
|
breakpoint location, address and thread. Otherwise, ARG is just the
|
breakpoint location, address and thread. Otherwise, ARG is just the
|
location of breakpoint, with condition and thread specified by the
|
location of breakpoint, with condition and thread specified by the
|
COND_STRING and THREAD parameters. Returns true if any breakpoint
|
COND_STRING and THREAD parameters. Returns true if any breakpoint
|
was created; false otherwise. */
|
was created; false otherwise. */
|
|
|
static int
|
static int
|
break_command_really (struct gdbarch *gdbarch,
|
break_command_really (struct gdbarch *gdbarch,
|
char *arg, char *cond_string, int thread,
|
char *arg, char *cond_string, int thread,
|
int parse_condition_and_thread,
|
int parse_condition_and_thread,
|
int tempflag, int hardwareflag, int traceflag,
|
int tempflag, int hardwareflag, int traceflag,
|
int ignore_count,
|
int ignore_count,
|
enum auto_boolean pending_break_support,
|
enum auto_boolean pending_break_support,
|
struct breakpoint_ops *ops,
|
struct breakpoint_ops *ops,
|
int from_tty,
|
int from_tty,
|
int enabled)
|
int enabled)
|
{
|
{
|
struct gdb_exception e;
|
struct gdb_exception e;
|
struct symtabs_and_lines sals;
|
struct symtabs_and_lines sals;
|
struct symtab_and_line pending_sal;
|
struct symtab_and_line pending_sal;
|
char *copy_arg;
|
char *copy_arg;
|
char *err_msg;
|
char *err_msg;
|
char *addr_start = arg;
|
char *addr_start = arg;
|
char **addr_string;
|
char **addr_string;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
struct cleanup *bkpt_chain = NULL;
|
struct cleanup *bkpt_chain = NULL;
|
struct captured_parse_breakpoint_args parse_args;
|
struct captured_parse_breakpoint_args parse_args;
|
int i;
|
int i;
|
int pending = 0;
|
int pending = 0;
|
int not_found = 0;
|
int not_found = 0;
|
enum bptype type_wanted;
|
enum bptype type_wanted;
|
int task = 0;
|
int task = 0;
|
|
|
sals.sals = NULL;
|
sals.sals = NULL;
|
sals.nelts = 0;
|
sals.nelts = 0;
|
addr_string = NULL;
|
addr_string = NULL;
|
|
|
parse_args.arg_p = &arg;
|
parse_args.arg_p = &arg;
|
parse_args.sals_p = &sals;
|
parse_args.sals_p = &sals;
|
parse_args.addr_string_p = &addr_string;
|
parse_args.addr_string_p = &addr_string;
|
parse_args.not_found_ptr = ¬_found;
|
parse_args.not_found_ptr = ¬_found;
|
|
|
e = catch_exception (uiout, do_captured_parse_breakpoint,
|
e = catch_exception (uiout, do_captured_parse_breakpoint,
|
&parse_args, RETURN_MASK_ALL);
|
&parse_args, RETURN_MASK_ALL);
|
|
|
/* If caller is interested in rc value from parse, set value. */
|
/* If caller is interested in rc value from parse, set value. */
|
switch (e.reason)
|
switch (e.reason)
|
{
|
{
|
case RETURN_QUIT:
|
case RETURN_QUIT:
|
throw_exception (e);
|
throw_exception (e);
|
case RETURN_ERROR:
|
case RETURN_ERROR:
|
switch (e.error)
|
switch (e.error)
|
{
|
{
|
case NOT_FOUND_ERROR:
|
case NOT_FOUND_ERROR:
|
|
|
/* If pending breakpoint support is turned off, throw
|
/* If pending breakpoint support is turned off, throw
|
error. */
|
error. */
|
|
|
if (pending_break_support == AUTO_BOOLEAN_FALSE)
|
if (pending_break_support == AUTO_BOOLEAN_FALSE)
|
throw_exception (e);
|
throw_exception (e);
|
|
|
exception_print (gdb_stderr, e);
|
exception_print (gdb_stderr, e);
|
|
|
/* If pending breakpoint support is auto query and the user
|
/* If pending breakpoint support is auto query and the user
|
selects no, then simply return the error code. */
|
selects no, then simply return the error code. */
|
if (pending_break_support == AUTO_BOOLEAN_AUTO
|
if (pending_break_support == AUTO_BOOLEAN_AUTO
|
&& !nquery ("Make breakpoint pending on future shared library load? "))
|
&& !nquery ("Make breakpoint pending on future shared library load? "))
|
return 0;
|
return 0;
|
|
|
/* At this point, either the user was queried about setting
|
/* At this point, either the user was queried about setting
|
a pending breakpoint and selected yes, or pending
|
a pending breakpoint and selected yes, or pending
|
breakpoint behavior is on and thus a pending breakpoint
|
breakpoint behavior is on and thus a pending breakpoint
|
is defaulted on behalf of the user. */
|
is defaulted on behalf of the user. */
|
copy_arg = xstrdup (addr_start);
|
copy_arg = xstrdup (addr_start);
|
addr_string = ©_arg;
|
addr_string = ©_arg;
|
sals.nelts = 1;
|
sals.nelts = 1;
|
sals.sals = &pending_sal;
|
sals.sals = &pending_sal;
|
pending_sal.pc = 0;
|
pending_sal.pc = 0;
|
pending = 1;
|
pending = 1;
|
break;
|
break;
|
default:
|
default:
|
throw_exception (e);
|
throw_exception (e);
|
}
|
}
|
default:
|
default:
|
if (!sals.nelts)
|
if (!sals.nelts)
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Create a chain of things that always need to be cleaned up. */
|
/* Create a chain of things that always need to be cleaned up. */
|
old_chain = make_cleanup (null_cleanup, 0);
|
old_chain = make_cleanup (null_cleanup, 0);
|
|
|
if (!pending)
|
if (!pending)
|
{
|
{
|
/* Make sure that all storage allocated to SALS gets freed. */
|
/* Make sure that all storage allocated to SALS gets freed. */
|
make_cleanup (xfree, sals.sals);
|
make_cleanup (xfree, sals.sals);
|
|
|
/* Cleanup the addr_string array but not its contents. */
|
/* Cleanup the addr_string array but not its contents. */
|
make_cleanup (xfree, addr_string);
|
make_cleanup (xfree, addr_string);
|
}
|
}
|
|
|
/* ----------------------------- SNIP -----------------------------
|
/* ----------------------------- SNIP -----------------------------
|
Anything added to the cleanup chain beyond this point is assumed
|
Anything added to the cleanup chain beyond this point is assumed
|
to be part of a breakpoint. If the breakpoint create succeeds
|
to be part of a breakpoint. If the breakpoint create succeeds
|
then the memory is not reclaimed. */
|
then the memory is not reclaimed. */
|
bkpt_chain = make_cleanup (null_cleanup, 0);
|
bkpt_chain = make_cleanup (null_cleanup, 0);
|
|
|
/* Mark the contents of the addr_string for cleanup. These go on
|
/* Mark the contents of the addr_string for cleanup. These go on
|
the bkpt_chain and only occur if the breakpoint create fails. */
|
the bkpt_chain and only occur if the breakpoint create fails. */
|
for (i = 0; i < sals.nelts; i++)
|
for (i = 0; i < sals.nelts; i++)
|
{
|
{
|
if (addr_string[i] != NULL)
|
if (addr_string[i] != NULL)
|
make_cleanup (xfree, addr_string[i]);
|
make_cleanup (xfree, addr_string[i]);
|
}
|
}
|
|
|
/* Resolve all line numbers to PC's and verify that the addresses
|
/* Resolve all line numbers to PC's and verify that the addresses
|
are ok for the target. */
|
are ok for the target. */
|
if (!pending)
|
if (!pending)
|
breakpoint_sals_to_pc (&sals, addr_start);
|
breakpoint_sals_to_pc (&sals, addr_start);
|
|
|
type_wanted = (traceflag
|
type_wanted = (traceflag
|
? (hardwareflag ? bp_fast_tracepoint : bp_tracepoint)
|
? (hardwareflag ? bp_fast_tracepoint : bp_tracepoint)
|
: (hardwareflag ? bp_hardware_breakpoint : bp_breakpoint));
|
: (hardwareflag ? bp_hardware_breakpoint : bp_breakpoint));
|
|
|
/* Fast tracepoints may have additional restrictions on location. */
|
/* Fast tracepoints may have additional restrictions on location. */
|
if (type_wanted == bp_fast_tracepoint)
|
if (type_wanted == bp_fast_tracepoint)
|
check_fast_tracepoint_sals (gdbarch, &sals);
|
check_fast_tracepoint_sals (gdbarch, &sals);
|
|
|
/* Verify that condition can be parsed, before setting any
|
/* Verify that condition can be parsed, before setting any
|
breakpoints. Allocate a separate condition expression for each
|
breakpoints. Allocate a separate condition expression for each
|
breakpoint. */
|
breakpoint. */
|
if (!pending)
|
if (!pending)
|
{
|
{
|
if (parse_condition_and_thread)
|
if (parse_condition_and_thread)
|
{
|
{
|
/* Here we only parse 'arg' to separate condition
|
/* Here we only parse 'arg' to separate condition
|
from thread number, so parsing in context of first
|
from thread number, so parsing in context of first
|
sal is OK. When setting the breakpoint we'll
|
sal is OK. When setting the breakpoint we'll
|
re-parse it in context of each sal. */
|
re-parse it in context of each sal. */
|
cond_string = NULL;
|
cond_string = NULL;
|
thread = -1;
|
thread = -1;
|
find_condition_and_thread (arg, sals.sals[0].pc, &cond_string,
|
find_condition_and_thread (arg, sals.sals[0].pc, &cond_string,
|
&thread, &task);
|
&thread, &task);
|
if (cond_string)
|
if (cond_string)
|
make_cleanup (xfree, cond_string);
|
make_cleanup (xfree, cond_string);
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Create a private copy of condition string. */
|
/* Create a private copy of condition string. */
|
if (cond_string)
|
if (cond_string)
|
{
|
{
|
cond_string = xstrdup (cond_string);
|
cond_string = xstrdup (cond_string);
|
make_cleanup (xfree, cond_string);
|
make_cleanup (xfree, cond_string);
|
}
|
}
|
}
|
}
|
create_breakpoints (gdbarch, sals, addr_string, cond_string, type_wanted,
|
create_breakpoints (gdbarch, sals, addr_string, cond_string, type_wanted,
|
tempflag ? disp_del : disp_donttouch,
|
tempflag ? disp_del : disp_donttouch,
|
thread, task, ignore_count, ops, from_tty, enabled);
|
thread, task, ignore_count, ops, from_tty, enabled);
|
}
|
}
|
else
|
else
|
{
|
{
|
struct symtab_and_line sal = {0};
|
struct symtab_and_line sal = {0};
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
make_cleanup (xfree, copy_arg);
|
make_cleanup (xfree, copy_arg);
|
|
|
b = set_raw_breakpoint_without_location (gdbarch, type_wanted);
|
b = set_raw_breakpoint_without_location (gdbarch, type_wanted);
|
set_breakpoint_count (breakpoint_count + 1);
|
set_breakpoint_count (breakpoint_count + 1);
|
b->number = breakpoint_count;
|
b->number = breakpoint_count;
|
b->thread = -1;
|
b->thread = -1;
|
b->addr_string = addr_string[0];
|
b->addr_string = addr_string[0];
|
b->cond_string = NULL;
|
b->cond_string = NULL;
|
b->ignore_count = ignore_count;
|
b->ignore_count = ignore_count;
|
b->disposition = tempflag ? disp_del : disp_donttouch;
|
b->disposition = tempflag ? disp_del : disp_donttouch;
|
b->condition_not_parsed = 1;
|
b->condition_not_parsed = 1;
|
b->ops = ops;
|
b->ops = ops;
|
b->enable_state = enabled ? bp_enabled : bp_disabled;
|
b->enable_state = enabled ? bp_enabled : bp_disabled;
|
b->pspace = current_program_space;
|
b->pspace = current_program_space;
|
|
|
if (enabled && b->pspace->executing_startup
|
if (enabled && b->pspace->executing_startup
|
&& (b->type == bp_breakpoint
|
&& (b->type == bp_breakpoint
|
|| b->type == bp_hardware_breakpoint))
|
|| b->type == bp_hardware_breakpoint))
|
b->enable_state = bp_startup_disabled;
|
b->enable_state = bp_startup_disabled;
|
|
|
mention (b);
|
mention (b);
|
}
|
}
|
|
|
if (sals.nelts > 1)
|
if (sals.nelts > 1)
|
warning (_("Multiple breakpoints were set.\n"
|
warning (_("Multiple breakpoints were set.\n"
|
"Use the \"delete\" command to delete unwanted breakpoints."));
|
"Use the \"delete\" command to delete unwanted breakpoints."));
|
/* That's it. Discard the cleanups for data inserted into the
|
/* That's it. Discard the cleanups for data inserted into the
|
breakpoint. */
|
breakpoint. */
|
discard_cleanups (bkpt_chain);
|
discard_cleanups (bkpt_chain);
|
/* But cleanup everything else. */
|
/* But cleanup everything else. */
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
|
|
/* error call may happen here - have BKPT_CHAIN already discarded. */
|
/* error call may happen here - have BKPT_CHAIN already discarded. */
|
update_global_location_list (1);
|
update_global_location_list (1);
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Set a breakpoint.
|
/* Set a breakpoint.
|
ARG is a string describing breakpoint address,
|
ARG is a string describing breakpoint address,
|
condition, and thread.
|
condition, and thread.
|
FLAG specifies if a breakpoint is hardware on,
|
FLAG specifies if a breakpoint is hardware on,
|
and if breakpoint is temporary, using BP_HARDWARE_FLAG
|
and if breakpoint is temporary, using BP_HARDWARE_FLAG
|
and BP_TEMPFLAG. */
|
and BP_TEMPFLAG. */
|
|
|
static void
|
static void
|
break_command_1 (char *arg, int flag, int from_tty)
|
break_command_1 (char *arg, int flag, int from_tty)
|
{
|
{
|
int hardwareflag = flag & BP_HARDWAREFLAG;
|
int hardwareflag = flag & BP_HARDWAREFLAG;
|
int tempflag = flag & BP_TEMPFLAG;
|
int tempflag = flag & BP_TEMPFLAG;
|
|
|
break_command_really (get_current_arch (),
|
break_command_really (get_current_arch (),
|
arg,
|
arg,
|
NULL, 0, 1 /* parse arg */,
|
NULL, 0, 1 /* parse arg */,
|
tempflag, hardwareflag, 0 /* traceflag */,
|
tempflag, hardwareflag, 0 /* traceflag */,
|
0 /* Ignore count */,
|
0 /* Ignore count */,
|
pending_break_support,
|
pending_break_support,
|
NULL /* breakpoint_ops */,
|
NULL /* breakpoint_ops */,
|
from_tty,
|
from_tty,
|
1 /* enabled */);
|
1 /* enabled */);
|
}
|
}
|
|
|
|
|
void
|
void
|
set_breakpoint (struct gdbarch *gdbarch,
|
set_breakpoint (struct gdbarch *gdbarch,
|
char *address, char *condition,
|
char *address, char *condition,
|
int hardwareflag, int tempflag,
|
int hardwareflag, int tempflag,
|
int thread, int ignore_count,
|
int thread, int ignore_count,
|
int pending, int enabled)
|
int pending, int enabled)
|
{
|
{
|
break_command_really (gdbarch,
|
break_command_really (gdbarch,
|
address, condition, thread,
|
address, condition, thread,
|
0 /* condition and thread are valid. */,
|
0 /* condition and thread are valid. */,
|
tempflag, hardwareflag, 0 /* traceflag */,
|
tempflag, hardwareflag, 0 /* traceflag */,
|
ignore_count,
|
ignore_count,
|
pending
|
pending
|
? AUTO_BOOLEAN_TRUE : AUTO_BOOLEAN_FALSE,
|
? AUTO_BOOLEAN_TRUE : AUTO_BOOLEAN_FALSE,
|
NULL, 0, enabled);
|
NULL, 0, enabled);
|
}
|
}
|
|
|
/* Adjust SAL to the first instruction past the function prologue.
|
/* Adjust SAL to the first instruction past the function prologue.
|
The end of the prologue is determined using the line table from
|
The end of the prologue is determined using the line table from
|
the debugging information. explicit_pc and explicit_line are
|
the debugging information. explicit_pc and explicit_line are
|
not modified.
|
not modified.
|
|
|
If SAL is already past the prologue, then do nothing. */
|
If SAL is already past the prologue, then do nothing. */
|
|
|
static void
|
static void
|
skip_prologue_sal (struct symtab_and_line *sal)
|
skip_prologue_sal (struct symtab_and_line *sal)
|
{
|
{
|
struct symbol *sym;
|
struct symbol *sym;
|
struct symtab_and_line start_sal;
|
struct symtab_and_line start_sal;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
|
|
old_chain = save_current_space_and_thread ();
|
old_chain = save_current_space_and_thread ();
|
|
|
sym = find_pc_function (sal->pc);
|
sym = find_pc_function (sal->pc);
|
if (sym != NULL)
|
if (sym != NULL)
|
{
|
{
|
start_sal = find_function_start_sal (sym, 1);
|
start_sal = find_function_start_sal (sym, 1);
|
if (sal->pc < start_sal.pc)
|
if (sal->pc < start_sal.pc)
|
{
|
{
|
start_sal.explicit_line = sal->explicit_line;
|
start_sal.explicit_line = sal->explicit_line;
|
start_sal.explicit_pc = sal->explicit_pc;
|
start_sal.explicit_pc = sal->explicit_pc;
|
*sal = start_sal;
|
*sal = start_sal;
|
}
|
}
|
}
|
}
|
|
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
}
|
}
|
|
|
/* Helper function for break_command_1 and disassemble_command. */
|
/* Helper function for break_command_1 and disassemble_command. */
|
|
|
void
|
void
|
resolve_sal_pc (struct symtab_and_line *sal)
|
resolve_sal_pc (struct symtab_and_line *sal)
|
{
|
{
|
CORE_ADDR pc;
|
CORE_ADDR pc;
|
|
|
if (sal->pc == 0 && sal->symtab != NULL)
|
if (sal->pc == 0 && sal->symtab != NULL)
|
{
|
{
|
if (!find_line_pc (sal->symtab, sal->line, &pc))
|
if (!find_line_pc (sal->symtab, sal->line, &pc))
|
error (_("No line %d in file \"%s\"."),
|
error (_("No line %d in file \"%s\"."),
|
sal->line, sal->symtab->filename);
|
sal->line, sal->symtab->filename);
|
sal->pc = pc;
|
sal->pc = pc;
|
|
|
/* If this SAL corresponds to a breakpoint inserted using
|
/* If this SAL corresponds to a breakpoint inserted using
|
a line number, then skip the function prologue if necessary. */
|
a line number, then skip the function prologue if necessary. */
|
if (sal->explicit_line)
|
if (sal->explicit_line)
|
{
|
{
|
/* Preserve the original line number. */
|
/* Preserve the original line number. */
|
int saved_line = sal->line;
|
int saved_line = sal->line;
|
skip_prologue_sal (sal);
|
skip_prologue_sal (sal);
|
sal->line = saved_line;
|
sal->line = saved_line;
|
}
|
}
|
}
|
}
|
|
|
if (sal->section == 0 && sal->symtab != NULL)
|
if (sal->section == 0 && sal->symtab != NULL)
|
{
|
{
|
struct blockvector *bv;
|
struct blockvector *bv;
|
struct block *b;
|
struct block *b;
|
struct symbol *sym;
|
struct symbol *sym;
|
|
|
bv = blockvector_for_pc_sect (sal->pc, 0, &b, sal->symtab);
|
bv = blockvector_for_pc_sect (sal->pc, 0, &b, sal->symtab);
|
if (bv != NULL)
|
if (bv != NULL)
|
{
|
{
|
sym = block_linkage_function (b);
|
sym = block_linkage_function (b);
|
if (sym != NULL)
|
if (sym != NULL)
|
{
|
{
|
fixup_symbol_section (sym, sal->symtab->objfile);
|
fixup_symbol_section (sym, sal->symtab->objfile);
|
sal->section = SYMBOL_OBJ_SECTION (sym);
|
sal->section = SYMBOL_OBJ_SECTION (sym);
|
}
|
}
|
else
|
else
|
{
|
{
|
/* It really is worthwhile to have the section, so we'll just
|
/* It really is worthwhile to have the section, so we'll just
|
have to look harder. This case can be executed if we have
|
have to look harder. This case can be executed if we have
|
line numbers but no functions (as can happen in assembly
|
line numbers but no functions (as can happen in assembly
|
source). */
|
source). */
|
|
|
struct minimal_symbol *msym;
|
struct minimal_symbol *msym;
|
struct cleanup *old_chain = save_current_space_and_thread ();
|
struct cleanup *old_chain = save_current_space_and_thread ();
|
|
|
switch_to_program_space_and_thread (sal->pspace);
|
switch_to_program_space_and_thread (sal->pspace);
|
|
|
msym = lookup_minimal_symbol_by_pc (sal->pc);
|
msym = lookup_minimal_symbol_by_pc (sal->pc);
|
if (msym)
|
if (msym)
|
sal->section = SYMBOL_OBJ_SECTION (msym);
|
sal->section = SYMBOL_OBJ_SECTION (msym);
|
|
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
void
|
void
|
break_command (char *arg, int from_tty)
|
break_command (char *arg, int from_tty)
|
{
|
{
|
break_command_1 (arg, 0, from_tty);
|
break_command_1 (arg, 0, from_tty);
|
}
|
}
|
|
|
void
|
void
|
tbreak_command (char *arg, int from_tty)
|
tbreak_command (char *arg, int from_tty)
|
{
|
{
|
break_command_1 (arg, BP_TEMPFLAG, from_tty);
|
break_command_1 (arg, BP_TEMPFLAG, from_tty);
|
}
|
}
|
|
|
static void
|
static void
|
hbreak_command (char *arg, int from_tty)
|
hbreak_command (char *arg, int from_tty)
|
{
|
{
|
break_command_1 (arg, BP_HARDWAREFLAG, from_tty);
|
break_command_1 (arg, BP_HARDWAREFLAG, from_tty);
|
}
|
}
|
|
|
static void
|
static void
|
thbreak_command (char *arg, int from_tty)
|
thbreak_command (char *arg, int from_tty)
|
{
|
{
|
break_command_1 (arg, (BP_TEMPFLAG | BP_HARDWAREFLAG), from_tty);
|
break_command_1 (arg, (BP_TEMPFLAG | BP_HARDWAREFLAG), from_tty);
|
}
|
}
|
|
|
static void
|
static void
|
stop_command (char *arg, int from_tty)
|
stop_command (char *arg, int from_tty)
|
{
|
{
|
printf_filtered (_("Specify the type of breakpoint to set.\n\
|
printf_filtered (_("Specify the type of breakpoint to set.\n\
|
Usage: stop in <function | address>\n\
|
Usage: stop in <function | address>\n\
|
stop at <line>\n"));
|
stop at <line>\n"));
|
}
|
}
|
|
|
static void
|
static void
|
stopin_command (char *arg, int from_tty)
|
stopin_command (char *arg, int from_tty)
|
{
|
{
|
int badInput = 0;
|
int badInput = 0;
|
|
|
if (arg == (char *) NULL)
|
if (arg == (char *) NULL)
|
badInput = 1;
|
badInput = 1;
|
else if (*arg != '*')
|
else if (*arg != '*')
|
{
|
{
|
char *argptr = arg;
|
char *argptr = arg;
|
int hasColon = 0;
|
int hasColon = 0;
|
|
|
/* look for a ':'. If this is a line number specification, then
|
/* look for a ':'. If this is a line number specification, then
|
say it is bad, otherwise, it should be an address or
|
say it is bad, otherwise, it should be an address or
|
function/method name */
|
function/method name */
|
while (*argptr && !hasColon)
|
while (*argptr && !hasColon)
|
{
|
{
|
hasColon = (*argptr == ':');
|
hasColon = (*argptr == ':');
|
argptr++;
|
argptr++;
|
}
|
}
|
|
|
if (hasColon)
|
if (hasColon)
|
badInput = (*argptr != ':'); /* Not a class::method */
|
badInput = (*argptr != ':'); /* Not a class::method */
|
else
|
else
|
badInput = isdigit (*arg); /* a simple line number */
|
badInput = isdigit (*arg); /* a simple line number */
|
}
|
}
|
|
|
if (badInput)
|
if (badInput)
|
printf_filtered (_("Usage: stop in <function | address>\n"));
|
printf_filtered (_("Usage: stop in <function | address>\n"));
|
else
|
else
|
break_command_1 (arg, 0, from_tty);
|
break_command_1 (arg, 0, from_tty);
|
}
|
}
|
|
|
static void
|
static void
|
stopat_command (char *arg, int from_tty)
|
stopat_command (char *arg, int from_tty)
|
{
|
{
|
int badInput = 0;
|
int badInput = 0;
|
|
|
if (arg == (char *) NULL || *arg == '*') /* no line number */
|
if (arg == (char *) NULL || *arg == '*') /* no line number */
|
badInput = 1;
|
badInput = 1;
|
else
|
else
|
{
|
{
|
char *argptr = arg;
|
char *argptr = arg;
|
int hasColon = 0;
|
int hasColon = 0;
|
|
|
/* look for a ':'. If there is a '::' then get out, otherwise
|
/* look for a ':'. If there is a '::' then get out, otherwise
|
it is probably a line number. */
|
it is probably a line number. */
|
while (*argptr && !hasColon)
|
while (*argptr && !hasColon)
|
{
|
{
|
hasColon = (*argptr == ':');
|
hasColon = (*argptr == ':');
|
argptr++;
|
argptr++;
|
}
|
}
|
|
|
if (hasColon)
|
if (hasColon)
|
badInput = (*argptr == ':'); /* we have class::method */
|
badInput = (*argptr == ':'); /* we have class::method */
|
else
|
else
|
badInput = !isdigit (*arg); /* not a line number */
|
badInput = !isdigit (*arg); /* not a line number */
|
}
|
}
|
|
|
if (badInput)
|
if (badInput)
|
printf_filtered (_("Usage: stop at <line>\n"));
|
printf_filtered (_("Usage: stop at <line>\n"));
|
else
|
else
|
break_command_1 (arg, 0, from_tty);
|
break_command_1 (arg, 0, from_tty);
|
}
|
}
|
|
|
/* accessflag: hw_write: watch write,
|
/* accessflag: hw_write: watch write,
|
hw_read: watch read,
|
hw_read: watch read,
|
hw_access: watch access (read or write) */
|
hw_access: watch access (read or write) */
|
static void
|
static void
|
watch_command_1 (char *arg, int accessflag, int from_tty)
|
watch_command_1 (char *arg, int accessflag, int from_tty)
|
{
|
{
|
struct gdbarch *gdbarch = get_current_arch ();
|
struct gdbarch *gdbarch = get_current_arch ();
|
struct breakpoint *b, *scope_breakpoint = NULL;
|
struct breakpoint *b, *scope_breakpoint = NULL;
|
struct expression *exp;
|
struct expression *exp;
|
struct block *exp_valid_block;
|
struct block *exp_valid_block;
|
struct value *val, *mark;
|
struct value *val, *mark;
|
struct frame_info *frame;
|
struct frame_info *frame;
|
char *exp_start = NULL;
|
char *exp_start = NULL;
|
char *exp_end = NULL;
|
char *exp_end = NULL;
|
char *tok, *id_tok_start, *end_tok;
|
char *tok, *id_tok_start, *end_tok;
|
int toklen;
|
int toklen;
|
char *cond_start = NULL;
|
char *cond_start = NULL;
|
char *cond_end = NULL;
|
char *cond_end = NULL;
|
int i, other_type_used, target_resources_ok = 0;
|
int i, other_type_used, target_resources_ok = 0;
|
enum bptype bp_type;
|
enum bptype bp_type;
|
int mem_cnt = 0;
|
int mem_cnt = 0;
|
int thread = -1;
|
int thread = -1;
|
|
|
/* Make sure that we actually have parameters to parse. */
|
/* Make sure that we actually have parameters to parse. */
|
if (arg != NULL && arg[0] != '\0')
|
if (arg != NULL && arg[0] != '\0')
|
{
|
{
|
toklen = strlen (arg); /* Size of argument list. */
|
toklen = strlen (arg); /* Size of argument list. */
|
|
|
/* Points tok to the end of the argument list. */
|
/* Points tok to the end of the argument list. */
|
tok = arg + toklen - 1;
|
tok = arg + toklen - 1;
|
|
|
/* Go backwards in the parameters list. Skip the last parameter.
|
/* Go backwards in the parameters list. Skip the last parameter.
|
If we're expecting a 'thread <thread_num>' parameter, this should
|
If we're expecting a 'thread <thread_num>' parameter, this should
|
be the thread identifier. */
|
be the thread identifier. */
|
while (tok > arg && (*tok == ' ' || *tok == '\t'))
|
while (tok > arg && (*tok == ' ' || *tok == '\t'))
|
tok--;
|
tok--;
|
while (tok > arg && (*tok != ' ' && *tok != '\t'))
|
while (tok > arg && (*tok != ' ' && *tok != '\t'))
|
tok--;
|
tok--;
|
|
|
/* Points end_tok to the beginning of the last token. */
|
/* Points end_tok to the beginning of the last token. */
|
id_tok_start = tok + 1;
|
id_tok_start = tok + 1;
|
|
|
/* Go backwards in the parameters list. Skip one more parameter.
|
/* Go backwards in the parameters list. Skip one more parameter.
|
If we're expecting a 'thread <thread_num>' parameter, we should
|
If we're expecting a 'thread <thread_num>' parameter, we should
|
reach a "thread" token. */
|
reach a "thread" token. */
|
while (tok > arg && (*tok == ' ' || *tok == '\t'))
|
while (tok > arg && (*tok == ' ' || *tok == '\t'))
|
tok--;
|
tok--;
|
|
|
end_tok = tok;
|
end_tok = tok;
|
|
|
while (tok > arg && (*tok != ' ' && *tok != '\t'))
|
while (tok > arg && (*tok != ' ' && *tok != '\t'))
|
tok--;
|
tok--;
|
|
|
/* Move the pointer forward to skip the whitespace and
|
/* Move the pointer forward to skip the whitespace and
|
calculate the length of the token. */
|
calculate the length of the token. */
|
tok++;
|
tok++;
|
toklen = end_tok - tok;
|
toklen = end_tok - tok;
|
|
|
if (toklen >= 1 && strncmp (tok, "thread", toklen) == 0)
|
if (toklen >= 1 && strncmp (tok, "thread", toklen) == 0)
|
{
|
{
|
/* At this point we've found a "thread" token, which means
|
/* At this point we've found a "thread" token, which means
|
the user is trying to set a watchpoint that triggers
|
the user is trying to set a watchpoint that triggers
|
only in a specific thread. */
|
only in a specific thread. */
|
char *endp;
|
char *endp;
|
|
|
/* Extract the thread ID from the next token. */
|
/* Extract the thread ID from the next token. */
|
thread = strtol (id_tok_start, &endp, 0);
|
thread = strtol (id_tok_start, &endp, 0);
|
|
|
/* Check if the user provided a valid numeric value for the
|
/* Check if the user provided a valid numeric value for the
|
thread ID. */
|
thread ID. */
|
if (*endp != ' ' && *endp != '\t' && *endp != '\0')
|
if (*endp != ' ' && *endp != '\t' && *endp != '\0')
|
error (_("Invalid thread ID specification %s."), id_tok_start);
|
error (_("Invalid thread ID specification %s."), id_tok_start);
|
|
|
/* Check if the thread actually exists. */
|
/* Check if the thread actually exists. */
|
if (!valid_thread_id (thread))
|
if (!valid_thread_id (thread))
|
error (_("Unknown thread %d."), thread);
|
error (_("Unknown thread %d."), thread);
|
|
|
/* Truncate the string and get rid of the thread <thread_num>
|
/* Truncate the string and get rid of the thread <thread_num>
|
parameter before the parameter list is parsed by the
|
parameter before the parameter list is parsed by the
|
evaluate_expression() function. */
|
evaluate_expression() function. */
|
*tok = '\0';
|
*tok = '\0';
|
}
|
}
|
}
|
}
|
|
|
/* Parse the rest of the arguments. */
|
/* Parse the rest of the arguments. */
|
innermost_block = NULL;
|
innermost_block = NULL;
|
exp_start = arg;
|
exp_start = arg;
|
exp = parse_exp_1 (&arg, 0, 0);
|
exp = parse_exp_1 (&arg, 0, 0);
|
exp_end = arg;
|
exp_end = arg;
|
/* Remove trailing whitespace from the expression before saving it.
|
/* Remove trailing whitespace from the expression before saving it.
|
This makes the eventual display of the expression string a bit
|
This makes the eventual display of the expression string a bit
|
prettier. */
|
prettier. */
|
while (exp_end > exp_start && (exp_end[-1] == ' ' || exp_end[-1] == '\t'))
|
while (exp_end > exp_start && (exp_end[-1] == ' ' || exp_end[-1] == '\t'))
|
--exp_end;
|
--exp_end;
|
|
|
exp_valid_block = innermost_block;
|
exp_valid_block = innermost_block;
|
mark = value_mark ();
|
mark = value_mark ();
|
fetch_watchpoint_value (exp, &val, NULL, NULL);
|
fetch_watchpoint_value (exp, &val, NULL, NULL);
|
if (val != NULL)
|
if (val != NULL)
|
release_value (val);
|
release_value (val);
|
|
|
tok = arg;
|
tok = arg;
|
while (*tok == ' ' || *tok == '\t')
|
while (*tok == ' ' || *tok == '\t')
|
tok++;
|
tok++;
|
end_tok = tok;
|
end_tok = tok;
|
|
|
while (*end_tok != ' ' && *end_tok != '\t' && *end_tok != '\000')
|
while (*end_tok != ' ' && *end_tok != '\t' && *end_tok != '\000')
|
end_tok++;
|
end_tok++;
|
|
|
toklen = end_tok - tok;
|
toklen = end_tok - tok;
|
if (toklen >= 1 && strncmp (tok, "if", toklen) == 0)
|
if (toklen >= 1 && strncmp (tok, "if", toklen) == 0)
|
{
|
{
|
struct expression *cond;
|
struct expression *cond;
|
|
|
tok = cond_start = end_tok + 1;
|
tok = cond_start = end_tok + 1;
|
cond = parse_exp_1 (&tok, 0, 0);
|
cond = parse_exp_1 (&tok, 0, 0);
|
xfree (cond);
|
xfree (cond);
|
cond_end = tok;
|
cond_end = tok;
|
}
|
}
|
if (*tok)
|
if (*tok)
|
error (_("Junk at end of command."));
|
error (_("Junk at end of command."));
|
|
|
if (accessflag == hw_read)
|
if (accessflag == hw_read)
|
bp_type = bp_read_watchpoint;
|
bp_type = bp_read_watchpoint;
|
else if (accessflag == hw_access)
|
else if (accessflag == hw_access)
|
bp_type = bp_access_watchpoint;
|
bp_type = bp_access_watchpoint;
|
else
|
else
|
bp_type = bp_hardware_watchpoint;
|
bp_type = bp_hardware_watchpoint;
|
|
|
mem_cnt = can_use_hardware_watchpoint (val);
|
mem_cnt = can_use_hardware_watchpoint (val);
|
if (mem_cnt == 0 && bp_type != bp_hardware_watchpoint)
|
if (mem_cnt == 0 && bp_type != bp_hardware_watchpoint)
|
error (_("Expression cannot be implemented with read/access watchpoint."));
|
error (_("Expression cannot be implemented with read/access watchpoint."));
|
if (mem_cnt != 0)
|
if (mem_cnt != 0)
|
{
|
{
|
i = hw_watchpoint_used_count (bp_type, &other_type_used);
|
i = hw_watchpoint_used_count (bp_type, &other_type_used);
|
target_resources_ok =
|
target_resources_ok =
|
target_can_use_hardware_watchpoint (bp_type, i + mem_cnt,
|
target_can_use_hardware_watchpoint (bp_type, i + mem_cnt,
|
other_type_used);
|
other_type_used);
|
if (target_resources_ok == 0 && bp_type != bp_hardware_watchpoint)
|
if (target_resources_ok == 0 && bp_type != bp_hardware_watchpoint)
|
error (_("Target does not support this type of hardware watchpoint."));
|
error (_("Target does not support this type of hardware watchpoint."));
|
|
|
if (target_resources_ok < 0 && bp_type != bp_hardware_watchpoint)
|
if (target_resources_ok < 0 && bp_type != bp_hardware_watchpoint)
|
error (_("Target can only support one kind of HW watchpoint at a time."));
|
error (_("Target can only support one kind of HW watchpoint at a time."));
|
}
|
}
|
|
|
/* Change the type of breakpoint to an ordinary watchpoint if a hardware
|
/* Change the type of breakpoint to an ordinary watchpoint if a hardware
|
watchpoint could not be set. */
|
watchpoint could not be set. */
|
if (!mem_cnt || target_resources_ok <= 0)
|
if (!mem_cnt || target_resources_ok <= 0)
|
bp_type = bp_watchpoint;
|
bp_type = bp_watchpoint;
|
|
|
frame = block_innermost_frame (exp_valid_block);
|
frame = block_innermost_frame (exp_valid_block);
|
|
|
/* If the expression is "local", then set up a "watchpoint scope"
|
/* If the expression is "local", then set up a "watchpoint scope"
|
breakpoint at the point where we've left the scope of the watchpoint
|
breakpoint at the point where we've left the scope of the watchpoint
|
expression. Create the scope breakpoint before the watchpoint, so
|
expression. Create the scope breakpoint before the watchpoint, so
|
that we will encounter it first in bpstat_stop_status. */
|
that we will encounter it first in bpstat_stop_status. */
|
if (innermost_block && frame)
|
if (innermost_block && frame)
|
{
|
{
|
if (frame_id_p (frame_unwind_caller_id (frame)))
|
if (frame_id_p (frame_unwind_caller_id (frame)))
|
{
|
{
|
scope_breakpoint
|
scope_breakpoint
|
= create_internal_breakpoint (frame_unwind_caller_arch (frame),
|
= create_internal_breakpoint (frame_unwind_caller_arch (frame),
|
frame_unwind_caller_pc (frame),
|
frame_unwind_caller_pc (frame),
|
bp_watchpoint_scope);
|
bp_watchpoint_scope);
|
|
|
scope_breakpoint->enable_state = bp_enabled;
|
scope_breakpoint->enable_state = bp_enabled;
|
|
|
/* Automatically delete the breakpoint when it hits. */
|
/* Automatically delete the breakpoint when it hits. */
|
scope_breakpoint->disposition = disp_del;
|
scope_breakpoint->disposition = disp_del;
|
|
|
/* Only break in the proper frame (help with recursion). */
|
/* Only break in the proper frame (help with recursion). */
|
scope_breakpoint->frame_id = frame_unwind_caller_id (frame);
|
scope_breakpoint->frame_id = frame_unwind_caller_id (frame);
|
|
|
/* Set the address at which we will stop. */
|
/* Set the address at which we will stop. */
|
scope_breakpoint->loc->gdbarch
|
scope_breakpoint->loc->gdbarch
|
= frame_unwind_caller_arch (frame);
|
= frame_unwind_caller_arch (frame);
|
scope_breakpoint->loc->requested_address
|
scope_breakpoint->loc->requested_address
|
= frame_unwind_caller_pc (frame);
|
= frame_unwind_caller_pc (frame);
|
scope_breakpoint->loc->address
|
scope_breakpoint->loc->address
|
= adjust_breakpoint_address (scope_breakpoint->loc->gdbarch,
|
= adjust_breakpoint_address (scope_breakpoint->loc->gdbarch,
|
scope_breakpoint->loc->requested_address,
|
scope_breakpoint->loc->requested_address,
|
scope_breakpoint->type);
|
scope_breakpoint->type);
|
}
|
}
|
}
|
}
|
|
|
/* Now set up the breakpoint. */
|
/* Now set up the breakpoint. */
|
b = set_raw_breakpoint_without_location (NULL, bp_type);
|
b = set_raw_breakpoint_without_location (NULL, bp_type);
|
set_breakpoint_count (breakpoint_count + 1);
|
set_breakpoint_count (breakpoint_count + 1);
|
b->number = breakpoint_count;
|
b->number = breakpoint_count;
|
b->thread = thread;
|
b->thread = thread;
|
b->disposition = disp_donttouch;
|
b->disposition = disp_donttouch;
|
b->exp = exp;
|
b->exp = exp;
|
b->exp_valid_block = exp_valid_block;
|
b->exp_valid_block = exp_valid_block;
|
b->exp_string = savestring (exp_start, exp_end - exp_start);
|
b->exp_string = savestring (exp_start, exp_end - exp_start);
|
b->val = val;
|
b->val = val;
|
b->val_valid = 1;
|
b->val_valid = 1;
|
if (cond_start)
|
if (cond_start)
|
b->cond_string = savestring (cond_start, cond_end - cond_start);
|
b->cond_string = savestring (cond_start, cond_end - cond_start);
|
else
|
else
|
b->cond_string = 0;
|
b->cond_string = 0;
|
|
|
if (frame)
|
if (frame)
|
{
|
{
|
b->watchpoint_frame = get_frame_id (frame);
|
b->watchpoint_frame = get_frame_id (frame);
|
b->watchpoint_thread = inferior_ptid;
|
b->watchpoint_thread = inferior_ptid;
|
}
|
}
|
else
|
else
|
{
|
{
|
b->watchpoint_frame = null_frame_id;
|
b->watchpoint_frame = null_frame_id;
|
b->watchpoint_thread = null_ptid;
|
b->watchpoint_thread = null_ptid;
|
}
|
}
|
|
|
if (scope_breakpoint != NULL)
|
if (scope_breakpoint != NULL)
|
{
|
{
|
/* The scope breakpoint is related to the watchpoint. We will
|
/* The scope breakpoint is related to the watchpoint. We will
|
need to act on them together. */
|
need to act on them together. */
|
b->related_breakpoint = scope_breakpoint;
|
b->related_breakpoint = scope_breakpoint;
|
scope_breakpoint->related_breakpoint = b;
|
scope_breakpoint->related_breakpoint = b;
|
}
|
}
|
|
|
value_free_to_mark (mark);
|
value_free_to_mark (mark);
|
|
|
/* Finally update the new watchpoint. This creates the locations
|
/* Finally update the new watchpoint. This creates the locations
|
that should be inserted. */
|
that should be inserted. */
|
update_watchpoint (b, 1);
|
update_watchpoint (b, 1);
|
|
|
mention (b);
|
mention (b);
|
update_global_location_list (1);
|
update_global_location_list (1);
|
}
|
}
|
|
|
/* Return count of locations need to be watched and can be handled
|
/* Return count of locations need to be watched and can be handled
|
in hardware. If the watchpoint can not be handled
|
in hardware. If the watchpoint can not be handled
|
in hardware return zero. */
|
in hardware return zero. */
|
|
|
static int
|
static int
|
can_use_hardware_watchpoint (struct value *v)
|
can_use_hardware_watchpoint (struct value *v)
|
{
|
{
|
int found_memory_cnt = 0;
|
int found_memory_cnt = 0;
|
struct value *head = v;
|
struct value *head = v;
|
|
|
/* Did the user specifically forbid us to use hardware watchpoints? */
|
/* Did the user specifically forbid us to use hardware watchpoints? */
|
if (!can_use_hw_watchpoints)
|
if (!can_use_hw_watchpoints)
|
return 0;
|
return 0;
|
|
|
/* Make sure that the value of the expression depends only upon
|
/* Make sure that the value of the expression depends only upon
|
memory contents, and values computed from them within GDB. If we
|
memory contents, and values computed from them within GDB. If we
|
find any register references or function calls, we can't use a
|
find any register references or function calls, we can't use a
|
hardware watchpoint.
|
hardware watchpoint.
|
|
|
The idea here is that evaluating an expression generates a series
|
The idea here is that evaluating an expression generates a series
|
of values, one holding the value of every subexpression. (The
|
of values, one holding the value of every subexpression. (The
|
expression a*b+c has five subexpressions: a, b, a*b, c, and
|
expression a*b+c has five subexpressions: a, b, a*b, c, and
|
a*b+c.) GDB's values hold almost enough information to establish
|
a*b+c.) GDB's values hold almost enough information to establish
|
the criteria given above --- they identify memory lvalues,
|
the criteria given above --- they identify memory lvalues,
|
register lvalues, computed values, etcetera. So we can evaluate
|
register lvalues, computed values, etcetera. So we can evaluate
|
the expression, and then scan the chain of values that leaves
|
the expression, and then scan the chain of values that leaves
|
behind to decide whether we can detect any possible change to the
|
behind to decide whether we can detect any possible change to the
|
expression's final value using only hardware watchpoints.
|
expression's final value using only hardware watchpoints.
|
|
|
However, I don't think that the values returned by inferior
|
However, I don't think that the values returned by inferior
|
function calls are special in any way. So this function may not
|
function calls are special in any way. So this function may not
|
notice that an expression involving an inferior function call
|
notice that an expression involving an inferior function call
|
can't be watched with hardware watchpoints. FIXME. */
|
can't be watched with hardware watchpoints. FIXME. */
|
for (; v; v = value_next (v))
|
for (; v; v = value_next (v))
|
{
|
{
|
if (VALUE_LVAL (v) == lval_memory)
|
if (VALUE_LVAL (v) == lval_memory)
|
{
|
{
|
if (value_lazy (v))
|
if (value_lazy (v))
|
/* A lazy memory lvalue is one that GDB never needed to fetch;
|
/* A lazy memory lvalue is one that GDB never needed to fetch;
|
we either just used its address (e.g., `a' in `a.b') or
|
we either just used its address (e.g., `a' in `a.b') or
|
we never needed it at all (e.g., `a' in `a,b'). */
|
we never needed it at all (e.g., `a' in `a,b'). */
|
;
|
;
|
else
|
else
|
{
|
{
|
/* Ahh, memory we actually used! Check if we can cover
|
/* Ahh, memory we actually used! Check if we can cover
|
it with hardware watchpoints. */
|
it with hardware watchpoints. */
|
struct type *vtype = check_typedef (value_type (v));
|
struct type *vtype = check_typedef (value_type (v));
|
|
|
/* We only watch structs and arrays if user asked for it
|
/* We only watch structs and arrays if user asked for it
|
explicitly, never if they just happen to appear in a
|
explicitly, never if they just happen to appear in a
|
middle of some value chain. */
|
middle of some value chain. */
|
if (v == head
|
if (v == head
|
|| (TYPE_CODE (vtype) != TYPE_CODE_STRUCT
|
|| (TYPE_CODE (vtype) != TYPE_CODE_STRUCT
|
&& TYPE_CODE (vtype) != TYPE_CODE_ARRAY))
|
&& TYPE_CODE (vtype) != TYPE_CODE_ARRAY))
|
{
|
{
|
CORE_ADDR vaddr = value_address (v);
|
CORE_ADDR vaddr = value_address (v);
|
int len = TYPE_LENGTH (value_type (v));
|
int len = TYPE_LENGTH (value_type (v));
|
|
|
if (!target_region_ok_for_hw_watchpoint (vaddr, len))
|
if (!target_region_ok_for_hw_watchpoint (vaddr, len))
|
return 0;
|
return 0;
|
else
|
else
|
found_memory_cnt++;
|
found_memory_cnt++;
|
}
|
}
|
}
|
}
|
}
|
}
|
else if (VALUE_LVAL (v) != not_lval
|
else if (VALUE_LVAL (v) != not_lval
|
&& deprecated_value_modifiable (v) == 0)
|
&& deprecated_value_modifiable (v) == 0)
|
return 0; /* ??? What does this represent? */
|
return 0; /* ??? What does this represent? */
|
else if (VALUE_LVAL (v) == lval_register)
|
else if (VALUE_LVAL (v) == lval_register)
|
return 0; /* cannot watch a register with a HW watchpoint */
|
return 0; /* cannot watch a register with a HW watchpoint */
|
}
|
}
|
|
|
/* The expression itself looks suitable for using a hardware
|
/* The expression itself looks suitable for using a hardware
|
watchpoint, but give the target machine a chance to reject it. */
|
watchpoint, but give the target machine a chance to reject it. */
|
return found_memory_cnt;
|
return found_memory_cnt;
|
}
|
}
|
|
|
void
|
void
|
watch_command_wrapper (char *arg, int from_tty)
|
watch_command_wrapper (char *arg, int from_tty)
|
{
|
{
|
watch_command (arg, from_tty);
|
watch_command (arg, from_tty);
|
}
|
}
|
|
|
static void
|
static void
|
watch_command (char *arg, int from_tty)
|
watch_command (char *arg, int from_tty)
|
{
|
{
|
watch_command_1 (arg, hw_write, from_tty);
|
watch_command_1 (arg, hw_write, from_tty);
|
}
|
}
|
|
|
void
|
void
|
rwatch_command_wrapper (char *arg, int from_tty)
|
rwatch_command_wrapper (char *arg, int from_tty)
|
{
|
{
|
rwatch_command (arg, from_tty);
|
rwatch_command (arg, from_tty);
|
}
|
}
|
|
|
static void
|
static void
|
rwatch_command (char *arg, int from_tty)
|
rwatch_command (char *arg, int from_tty)
|
{
|
{
|
watch_command_1 (arg, hw_read, from_tty);
|
watch_command_1 (arg, hw_read, from_tty);
|
}
|
}
|
|
|
void
|
void
|
awatch_command_wrapper (char *arg, int from_tty)
|
awatch_command_wrapper (char *arg, int from_tty)
|
{
|
{
|
awatch_command (arg, from_tty);
|
awatch_command (arg, from_tty);
|
}
|
}
|
|
|
static void
|
static void
|
awatch_command (char *arg, int from_tty)
|
awatch_command (char *arg, int from_tty)
|
{
|
{
|
watch_command_1 (arg, hw_access, from_tty);
|
watch_command_1 (arg, hw_access, from_tty);
|
}
|
}
|
|
|
|
|
/* Helper routines for the until_command routine in infcmd.c. Here
|
/* Helper routines for the until_command routine in infcmd.c. Here
|
because it uses the mechanisms of breakpoints. */
|
because it uses the mechanisms of breakpoints. */
|
|
|
struct until_break_command_continuation_args
|
struct until_break_command_continuation_args
|
{
|
{
|
struct breakpoint *breakpoint;
|
struct breakpoint *breakpoint;
|
struct breakpoint *breakpoint2;
|
struct breakpoint *breakpoint2;
|
};
|
};
|
|
|
/* This function is called by fetch_inferior_event via the
|
/* This function is called by fetch_inferior_event via the
|
cmd_continuation pointer, to complete the until command. It takes
|
cmd_continuation pointer, to complete the until command. It takes
|
care of cleaning up the temporary breakpoints set up by the until
|
care of cleaning up the temporary breakpoints set up by the until
|
command. */
|
command. */
|
static void
|
static void
|
until_break_command_continuation (void *arg)
|
until_break_command_continuation (void *arg)
|
{
|
{
|
struct until_break_command_continuation_args *a = arg;
|
struct until_break_command_continuation_args *a = arg;
|
|
|
delete_breakpoint (a->breakpoint);
|
delete_breakpoint (a->breakpoint);
|
if (a->breakpoint2)
|
if (a->breakpoint2)
|
delete_breakpoint (a->breakpoint2);
|
delete_breakpoint (a->breakpoint2);
|
}
|
}
|
|
|
void
|
void
|
until_break_command (char *arg, int from_tty, int anywhere)
|
until_break_command (char *arg, int from_tty, int anywhere)
|
{
|
{
|
struct symtabs_and_lines sals;
|
struct symtabs_and_lines sals;
|
struct symtab_and_line sal;
|
struct symtab_and_line sal;
|
struct frame_info *frame = get_selected_frame (NULL);
|
struct frame_info *frame = get_selected_frame (NULL);
|
struct breakpoint *breakpoint;
|
struct breakpoint *breakpoint;
|
struct breakpoint *breakpoint2 = NULL;
|
struct breakpoint *breakpoint2 = NULL;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
|
|
clear_proceed_status ();
|
clear_proceed_status ();
|
|
|
/* Set a breakpoint where the user wants it and at return from
|
/* Set a breakpoint where the user wants it and at return from
|
this function */
|
this function */
|
|
|
if (default_breakpoint_valid)
|
if (default_breakpoint_valid)
|
sals = decode_line_1 (&arg, 1, default_breakpoint_symtab,
|
sals = decode_line_1 (&arg, 1, default_breakpoint_symtab,
|
default_breakpoint_line, (char ***) NULL, NULL);
|
default_breakpoint_line, (char ***) NULL, NULL);
|
else
|
else
|
sals = decode_line_1 (&arg, 1, (struct symtab *) NULL,
|
sals = decode_line_1 (&arg, 1, (struct symtab *) NULL,
|
0, (char ***) NULL, NULL);
|
0, (char ***) NULL, NULL);
|
|
|
if (sals.nelts != 1)
|
if (sals.nelts != 1)
|
error (_("Couldn't get information on specified line."));
|
error (_("Couldn't get information on specified line."));
|
|
|
sal = sals.sals[0];
|
sal = sals.sals[0];
|
xfree (sals.sals); /* malloc'd, so freed */
|
xfree (sals.sals); /* malloc'd, so freed */
|
|
|
if (*arg)
|
if (*arg)
|
error (_("Junk at end of arguments."));
|
error (_("Junk at end of arguments."));
|
|
|
resolve_sal_pc (&sal);
|
resolve_sal_pc (&sal);
|
|
|
if (anywhere)
|
if (anywhere)
|
/* If the user told us to continue until a specified location,
|
/* If the user told us to continue until a specified location,
|
we don't specify a frame at which we need to stop. */
|
we don't specify a frame at which we need to stop. */
|
breakpoint = set_momentary_breakpoint (get_frame_arch (frame), sal,
|
breakpoint = set_momentary_breakpoint (get_frame_arch (frame), sal,
|
null_frame_id, bp_until);
|
null_frame_id, bp_until);
|
else
|
else
|
/* Otherwise, specify the selected frame, because we want to stop only
|
/* Otherwise, specify the selected frame, because we want to stop only
|
at the very same frame. */
|
at the very same frame. */
|
breakpoint = set_momentary_breakpoint (get_frame_arch (frame), sal,
|
breakpoint = set_momentary_breakpoint (get_frame_arch (frame), sal,
|
get_stack_frame_id (frame),
|
get_stack_frame_id (frame),
|
bp_until);
|
bp_until);
|
|
|
old_chain = make_cleanup_delete_breakpoint (breakpoint);
|
old_chain = make_cleanup_delete_breakpoint (breakpoint);
|
|
|
/* Keep within the current frame, or in frames called by the current
|
/* Keep within the current frame, or in frames called by the current
|
one. */
|
one. */
|
|
|
if (frame_id_p (frame_unwind_caller_id (frame)))
|
if (frame_id_p (frame_unwind_caller_id (frame)))
|
{
|
{
|
sal = find_pc_line (frame_unwind_caller_pc (frame), 0);
|
sal = find_pc_line (frame_unwind_caller_pc (frame), 0);
|
sal.pc = frame_unwind_caller_pc (frame);
|
sal.pc = frame_unwind_caller_pc (frame);
|
breakpoint2 = set_momentary_breakpoint (frame_unwind_caller_arch (frame),
|
breakpoint2 = set_momentary_breakpoint (frame_unwind_caller_arch (frame),
|
sal,
|
sal,
|
frame_unwind_caller_id (frame),
|
frame_unwind_caller_id (frame),
|
bp_until);
|
bp_until);
|
make_cleanup_delete_breakpoint (breakpoint2);
|
make_cleanup_delete_breakpoint (breakpoint2);
|
}
|
}
|
|
|
proceed (-1, TARGET_SIGNAL_DEFAULT, 0);
|
proceed (-1, TARGET_SIGNAL_DEFAULT, 0);
|
|
|
/* If we are running asynchronously, and proceed call above has actually
|
/* If we are running asynchronously, and proceed call above has actually
|
managed to start the target, arrange for breakpoints to be
|
managed to start the target, arrange for breakpoints to be
|
deleted when the target stops. Otherwise, we're already stopped and
|
deleted when the target stops. Otherwise, we're already stopped and
|
delete breakpoints via cleanup chain. */
|
delete breakpoints via cleanup chain. */
|
|
|
if (target_can_async_p () && is_running (inferior_ptid))
|
if (target_can_async_p () && is_running (inferior_ptid))
|
{
|
{
|
struct until_break_command_continuation_args *args;
|
struct until_break_command_continuation_args *args;
|
args = xmalloc (sizeof (*args));
|
args = xmalloc (sizeof (*args));
|
|
|
args->breakpoint = breakpoint;
|
args->breakpoint = breakpoint;
|
args->breakpoint2 = breakpoint2;
|
args->breakpoint2 = breakpoint2;
|
|
|
discard_cleanups (old_chain);
|
discard_cleanups (old_chain);
|
add_continuation (inferior_thread (),
|
add_continuation (inferior_thread (),
|
until_break_command_continuation, args,
|
until_break_command_continuation, args,
|
xfree);
|
xfree);
|
}
|
}
|
else
|
else
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
}
|
}
|
|
|
static void
|
static void
|
ep_skip_leading_whitespace (char **s)
|
ep_skip_leading_whitespace (char **s)
|
{
|
{
|
if ((s == NULL) || (*s == NULL))
|
if ((s == NULL) || (*s == NULL))
|
return;
|
return;
|
while (isspace (**s))
|
while (isspace (**s))
|
*s += 1;
|
*s += 1;
|
}
|
}
|
|
|
/* This function attempts to parse an optional "if <cond>" clause
|
/* This function attempts to parse an optional "if <cond>" clause
|
from the arg string. If one is not found, it returns NULL.
|
from the arg string. If one is not found, it returns NULL.
|
|
|
Else, it returns a pointer to the condition string. (It does not
|
Else, it returns a pointer to the condition string. (It does not
|
attempt to evaluate the string against a particular block.) And,
|
attempt to evaluate the string against a particular block.) And,
|
it updates arg to point to the first character following the parsed
|
it updates arg to point to the first character following the parsed
|
if clause in the arg string. */
|
if clause in the arg string. */
|
|
|
static char *
|
static char *
|
ep_parse_optional_if_clause (char **arg)
|
ep_parse_optional_if_clause (char **arg)
|
{
|
{
|
char *cond_string;
|
char *cond_string;
|
|
|
if (((*arg)[0] != 'i') || ((*arg)[1] != 'f') || !isspace ((*arg)[2]))
|
if (((*arg)[0] != 'i') || ((*arg)[1] != 'f') || !isspace ((*arg)[2]))
|
return NULL;
|
return NULL;
|
|
|
/* Skip the "if" keyword. */
|
/* Skip the "if" keyword. */
|
(*arg) += 2;
|
(*arg) += 2;
|
|
|
/* Skip any extra leading whitespace, and record the start of the
|
/* Skip any extra leading whitespace, and record the start of the
|
condition string. */
|
condition string. */
|
ep_skip_leading_whitespace (arg);
|
ep_skip_leading_whitespace (arg);
|
cond_string = *arg;
|
cond_string = *arg;
|
|
|
/* Assume that the condition occupies the remainder of the arg string. */
|
/* Assume that the condition occupies the remainder of the arg string. */
|
(*arg) += strlen (cond_string);
|
(*arg) += strlen (cond_string);
|
|
|
return cond_string;
|
return cond_string;
|
}
|
}
|
|
|
/* Commands to deal with catching events, such as signals, exceptions,
|
/* Commands to deal with catching events, such as signals, exceptions,
|
process start/exit, etc. */
|
process start/exit, etc. */
|
|
|
typedef enum
|
typedef enum
|
{
|
{
|
catch_fork_temporary, catch_vfork_temporary,
|
catch_fork_temporary, catch_vfork_temporary,
|
catch_fork_permanent, catch_vfork_permanent
|
catch_fork_permanent, catch_vfork_permanent
|
}
|
}
|
catch_fork_kind;
|
catch_fork_kind;
|
|
|
static void
|
static void
|
catch_fork_command_1 (char *arg, int from_tty, struct cmd_list_element *command)
|
catch_fork_command_1 (char *arg, int from_tty, struct cmd_list_element *command)
|
{
|
{
|
struct gdbarch *gdbarch = get_current_arch ();
|
struct gdbarch *gdbarch = get_current_arch ();
|
char *cond_string = NULL;
|
char *cond_string = NULL;
|
catch_fork_kind fork_kind;
|
catch_fork_kind fork_kind;
|
int tempflag;
|
int tempflag;
|
|
|
fork_kind = (catch_fork_kind) (uintptr_t) get_cmd_context (command);
|
fork_kind = (catch_fork_kind) (uintptr_t) get_cmd_context (command);
|
tempflag = (fork_kind == catch_fork_temporary
|
tempflag = (fork_kind == catch_fork_temporary
|
|| fork_kind == catch_vfork_temporary);
|
|| fork_kind == catch_vfork_temporary);
|
|
|
if (!arg)
|
if (!arg)
|
arg = "";
|
arg = "";
|
ep_skip_leading_whitespace (&arg);
|
ep_skip_leading_whitespace (&arg);
|
|
|
/* The allowed syntax is:
|
/* The allowed syntax is:
|
catch [v]fork
|
catch [v]fork
|
catch [v]fork if <cond>
|
catch [v]fork if <cond>
|
|
|
First, check if there's an if clause. */
|
First, check if there's an if clause. */
|
cond_string = ep_parse_optional_if_clause (&arg);
|
cond_string = ep_parse_optional_if_clause (&arg);
|
|
|
if ((*arg != '\0') && !isspace (*arg))
|
if ((*arg != '\0') && !isspace (*arg))
|
error (_("Junk at end of arguments."));
|
error (_("Junk at end of arguments."));
|
|
|
/* If this target supports it, create a fork or vfork catchpoint
|
/* If this target supports it, create a fork or vfork catchpoint
|
and enable reporting of such events. */
|
and enable reporting of such events. */
|
switch (fork_kind)
|
switch (fork_kind)
|
{
|
{
|
case catch_fork_temporary:
|
case catch_fork_temporary:
|
case catch_fork_permanent:
|
case catch_fork_permanent:
|
create_fork_vfork_event_catchpoint (gdbarch, tempflag, cond_string,
|
create_fork_vfork_event_catchpoint (gdbarch, tempflag, cond_string,
|
&catch_fork_breakpoint_ops);
|
&catch_fork_breakpoint_ops);
|
break;
|
break;
|
case catch_vfork_temporary:
|
case catch_vfork_temporary:
|
case catch_vfork_permanent:
|
case catch_vfork_permanent:
|
create_fork_vfork_event_catchpoint (gdbarch, tempflag, cond_string,
|
create_fork_vfork_event_catchpoint (gdbarch, tempflag, cond_string,
|
&catch_vfork_breakpoint_ops);
|
&catch_vfork_breakpoint_ops);
|
break;
|
break;
|
default:
|
default:
|
error (_("unsupported or unknown fork kind; cannot catch it"));
|
error (_("unsupported or unknown fork kind; cannot catch it"));
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
static void
|
static void
|
catch_exec_command_1 (char *arg, int from_tty, struct cmd_list_element *command)
|
catch_exec_command_1 (char *arg, int from_tty, struct cmd_list_element *command)
|
{
|
{
|
struct gdbarch *gdbarch = get_current_arch ();
|
struct gdbarch *gdbarch = get_current_arch ();
|
int tempflag;
|
int tempflag;
|
char *cond_string = NULL;
|
char *cond_string = NULL;
|
|
|
tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
|
|
if (!arg)
|
if (!arg)
|
arg = "";
|
arg = "";
|
ep_skip_leading_whitespace (&arg);
|
ep_skip_leading_whitespace (&arg);
|
|
|
/* The allowed syntax is:
|
/* The allowed syntax is:
|
catch exec
|
catch exec
|
catch exec if <cond>
|
catch exec if <cond>
|
|
|
First, check if there's an if clause. */
|
First, check if there's an if clause. */
|
cond_string = ep_parse_optional_if_clause (&arg);
|
cond_string = ep_parse_optional_if_clause (&arg);
|
|
|
if ((*arg != '\0') && !isspace (*arg))
|
if ((*arg != '\0') && !isspace (*arg))
|
error (_("Junk at end of arguments."));
|
error (_("Junk at end of arguments."));
|
|
|
/* If this target supports it, create an exec catchpoint
|
/* If this target supports it, create an exec catchpoint
|
and enable reporting of such events. */
|
and enable reporting of such events. */
|
create_catchpoint (gdbarch, tempflag, cond_string,
|
create_catchpoint (gdbarch, tempflag, cond_string,
|
&catch_exec_breakpoint_ops);
|
&catch_exec_breakpoint_ops);
|
}
|
}
|
|
|
static enum print_stop_action
|
static enum print_stop_action
|
print_exception_catchpoint (struct breakpoint *b)
|
print_exception_catchpoint (struct breakpoint *b)
|
{
|
{
|
int bp_temp, bp_throw;
|
int bp_temp, bp_throw;
|
|
|
annotate_catchpoint (b->number);
|
annotate_catchpoint (b->number);
|
|
|
bp_throw = strstr (b->addr_string, "throw") != NULL;
|
bp_throw = strstr (b->addr_string, "throw") != NULL;
|
if (b->loc->address != b->loc->requested_address)
|
if (b->loc->address != b->loc->requested_address)
|
breakpoint_adjustment_warning (b->loc->requested_address,
|
breakpoint_adjustment_warning (b->loc->requested_address,
|
b->loc->address,
|
b->loc->address,
|
b->number, 1);
|
b->number, 1);
|
bp_temp = b->disposition == disp_del;
|
bp_temp = b->disposition == disp_del;
|
ui_out_text (uiout,
|
ui_out_text (uiout,
|
bp_temp ? "Temporary catchpoint "
|
bp_temp ? "Temporary catchpoint "
|
: "Catchpoint ");
|
: "Catchpoint ");
|
if (!ui_out_is_mi_like_p (uiout))
|
if (!ui_out_is_mi_like_p (uiout))
|
ui_out_field_int (uiout, "bkptno", b->number);
|
ui_out_field_int (uiout, "bkptno", b->number);
|
ui_out_text (uiout,
|
ui_out_text (uiout,
|
bp_throw ? " (exception thrown), "
|
bp_throw ? " (exception thrown), "
|
: " (exception caught), ");
|
: " (exception caught), ");
|
if (ui_out_is_mi_like_p (uiout))
|
if (ui_out_is_mi_like_p (uiout))
|
{
|
{
|
ui_out_field_string (uiout, "reason",
|
ui_out_field_string (uiout, "reason",
|
async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT));
|
async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT));
|
ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
|
ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
|
ui_out_field_int (uiout, "bkptno", b->number);
|
ui_out_field_int (uiout, "bkptno", b->number);
|
}
|
}
|
return PRINT_SRC_AND_LOC;
|
return PRINT_SRC_AND_LOC;
|
}
|
}
|
|
|
static void
|
static void
|
print_one_exception_catchpoint (struct breakpoint *b, struct bp_location **last_loc)
|
print_one_exception_catchpoint (struct breakpoint *b, struct bp_location **last_loc)
|
{
|
{
|
struct value_print_options opts;
|
struct value_print_options opts;
|
get_user_print_options (&opts);
|
get_user_print_options (&opts);
|
if (opts.addressprint)
|
if (opts.addressprint)
|
{
|
{
|
annotate_field (4);
|
annotate_field (4);
|
if (b->loc == NULL || b->loc->shlib_disabled)
|
if (b->loc == NULL || b->loc->shlib_disabled)
|
ui_out_field_string (uiout, "addr", "<PENDING>");
|
ui_out_field_string (uiout, "addr", "<PENDING>");
|
else
|
else
|
ui_out_field_core_addr (uiout, "addr",
|
ui_out_field_core_addr (uiout, "addr",
|
b->loc->gdbarch, b->loc->address);
|
b->loc->gdbarch, b->loc->address);
|
}
|
}
|
annotate_field (5);
|
annotate_field (5);
|
if (b->loc)
|
if (b->loc)
|
*last_loc = b->loc;
|
*last_loc = b->loc;
|
if (strstr (b->addr_string, "throw") != NULL)
|
if (strstr (b->addr_string, "throw") != NULL)
|
ui_out_field_string (uiout, "what", "exception throw");
|
ui_out_field_string (uiout, "what", "exception throw");
|
else
|
else
|
ui_out_field_string (uiout, "what", "exception catch");
|
ui_out_field_string (uiout, "what", "exception catch");
|
}
|
}
|
|
|
static void
|
static void
|
print_mention_exception_catchpoint (struct breakpoint *b)
|
print_mention_exception_catchpoint (struct breakpoint *b)
|
{
|
{
|
int bp_temp;
|
int bp_temp;
|
int bp_throw;
|
int bp_throw;
|
|
|
bp_temp = b->disposition == disp_del;
|
bp_temp = b->disposition == disp_del;
|
bp_throw = strstr (b->addr_string, "throw") != NULL;
|
bp_throw = strstr (b->addr_string, "throw") != NULL;
|
ui_out_text (uiout, bp_temp ? _("Temporary catchpoint ")
|
ui_out_text (uiout, bp_temp ? _("Temporary catchpoint ")
|
: _("Catchpoint "));
|
: _("Catchpoint "));
|
ui_out_field_int (uiout, "bkptno", b->number);
|
ui_out_field_int (uiout, "bkptno", b->number);
|
ui_out_text (uiout, bp_throw ? _(" (throw)")
|
ui_out_text (uiout, bp_throw ? _(" (throw)")
|
: _(" (catch)"));
|
: _(" (catch)"));
|
}
|
}
|
|
|
static struct breakpoint_ops gnu_v3_exception_catchpoint_ops = {
|
static struct breakpoint_ops gnu_v3_exception_catchpoint_ops = {
|
NULL, /* insert */
|
NULL, /* insert */
|
NULL, /* remove */
|
NULL, /* remove */
|
NULL, /* breakpoint_hit */
|
NULL, /* breakpoint_hit */
|
print_exception_catchpoint,
|
print_exception_catchpoint,
|
print_one_exception_catchpoint,
|
print_one_exception_catchpoint,
|
print_mention_exception_catchpoint
|
print_mention_exception_catchpoint
|
};
|
};
|
|
|
static int
|
static int
|
handle_gnu_v3_exceptions (int tempflag, char *cond_string,
|
handle_gnu_v3_exceptions (int tempflag, char *cond_string,
|
enum exception_event_kind ex_event, int from_tty)
|
enum exception_event_kind ex_event, int from_tty)
|
{
|
{
|
char *trigger_func_name;
|
char *trigger_func_name;
|
|
|
if (ex_event == EX_EVENT_CATCH)
|
if (ex_event == EX_EVENT_CATCH)
|
trigger_func_name = "__cxa_begin_catch";
|
trigger_func_name = "__cxa_begin_catch";
|
else
|
else
|
trigger_func_name = "__cxa_throw";
|
trigger_func_name = "__cxa_throw";
|
|
|
break_command_really (get_current_arch (),
|
break_command_really (get_current_arch (),
|
trigger_func_name, cond_string, -1,
|
trigger_func_name, cond_string, -1,
|
0 /* condition and thread are valid. */,
|
0 /* condition and thread are valid. */,
|
tempflag, 0, 0,
|
tempflag, 0, 0,
|
0,
|
0,
|
AUTO_BOOLEAN_TRUE /* pending */,
|
AUTO_BOOLEAN_TRUE /* pending */,
|
&gnu_v3_exception_catchpoint_ops, from_tty,
|
&gnu_v3_exception_catchpoint_ops, from_tty,
|
1 /* enabled */);
|
1 /* enabled */);
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Deal with "catch catch" and "catch throw" commands */
|
/* Deal with "catch catch" and "catch throw" commands */
|
|
|
static void
|
static void
|
catch_exception_command_1 (enum exception_event_kind ex_event, char *arg,
|
catch_exception_command_1 (enum exception_event_kind ex_event, char *arg,
|
int tempflag, int from_tty)
|
int tempflag, int from_tty)
|
{
|
{
|
char *cond_string = NULL;
|
char *cond_string = NULL;
|
struct symtab_and_line *sal = NULL;
|
struct symtab_and_line *sal = NULL;
|
|
|
if (!arg)
|
if (!arg)
|
arg = "";
|
arg = "";
|
ep_skip_leading_whitespace (&arg);
|
ep_skip_leading_whitespace (&arg);
|
|
|
cond_string = ep_parse_optional_if_clause (&arg);
|
cond_string = ep_parse_optional_if_clause (&arg);
|
|
|
if ((*arg != '\0') && !isspace (*arg))
|
if ((*arg != '\0') && !isspace (*arg))
|
error (_("Junk at end of arguments."));
|
error (_("Junk at end of arguments."));
|
|
|
if (ex_event != EX_EVENT_THROW
|
if (ex_event != EX_EVENT_THROW
|
&& ex_event != EX_EVENT_CATCH)
|
&& ex_event != EX_EVENT_CATCH)
|
error (_("Unsupported or unknown exception event; cannot catch it"));
|
error (_("Unsupported or unknown exception event; cannot catch it"));
|
|
|
if (handle_gnu_v3_exceptions (tempflag, cond_string, ex_event, from_tty))
|
if (handle_gnu_v3_exceptions (tempflag, cond_string, ex_event, from_tty))
|
return;
|
return;
|
|
|
warning (_("Unsupported with this platform/compiler combination."));
|
warning (_("Unsupported with this platform/compiler combination."));
|
}
|
}
|
|
|
/* Implementation of "catch catch" command. */
|
/* Implementation of "catch catch" command. */
|
|
|
static void
|
static void
|
catch_catch_command (char *arg, int from_tty, struct cmd_list_element *command)
|
catch_catch_command (char *arg, int from_tty, struct cmd_list_element *command)
|
{
|
{
|
int tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
int tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
catch_exception_command_1 (EX_EVENT_CATCH, arg, tempflag, from_tty);
|
catch_exception_command_1 (EX_EVENT_CATCH, arg, tempflag, from_tty);
|
}
|
}
|
|
|
/* Implementation of "catch throw" command. */
|
/* Implementation of "catch throw" command. */
|
|
|
static void
|
static void
|
catch_throw_command (char *arg, int from_tty, struct cmd_list_element *command)
|
catch_throw_command (char *arg, int from_tty, struct cmd_list_element *command)
|
{
|
{
|
int tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
int tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
catch_exception_command_1 (EX_EVENT_THROW, arg, tempflag, from_tty);
|
catch_exception_command_1 (EX_EVENT_THROW, arg, tempflag, from_tty);
|
}
|
}
|
|
|
/* Create a breakpoint struct for Ada exception catchpoints. */
|
/* Create a breakpoint struct for Ada exception catchpoints. */
|
|
|
static void
|
static void
|
create_ada_exception_breakpoint (struct gdbarch *gdbarch,
|
create_ada_exception_breakpoint (struct gdbarch *gdbarch,
|
struct symtab_and_line sal,
|
struct symtab_and_line sal,
|
char *addr_string,
|
char *addr_string,
|
char *exp_string,
|
char *exp_string,
|
char *cond_string,
|
char *cond_string,
|
struct expression *cond,
|
struct expression *cond,
|
struct breakpoint_ops *ops,
|
struct breakpoint_ops *ops,
|
int tempflag,
|
int tempflag,
|
int from_tty)
|
int from_tty)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
if (from_tty)
|
if (from_tty)
|
{
|
{
|
struct gdbarch *loc_gdbarch = get_sal_arch (sal);
|
struct gdbarch *loc_gdbarch = get_sal_arch (sal);
|
if (!loc_gdbarch)
|
if (!loc_gdbarch)
|
loc_gdbarch = gdbarch;
|
loc_gdbarch = gdbarch;
|
|
|
describe_other_breakpoints (loc_gdbarch,
|
describe_other_breakpoints (loc_gdbarch,
|
sal.pspace, sal.pc, sal.section, -1);
|
sal.pspace, sal.pc, sal.section, -1);
|
/* FIXME: brobecker/2006-12-28: Actually, re-implement a special
|
/* FIXME: brobecker/2006-12-28: Actually, re-implement a special
|
version for exception catchpoints, because two catchpoints
|
version for exception catchpoints, because two catchpoints
|
used for different exception names will use the same address.
|
used for different exception names will use the same address.
|
In this case, a "breakpoint ... also set at..." warning is
|
In this case, a "breakpoint ... also set at..." warning is
|
unproductive. Besides. the warning phrasing is also a bit
|
unproductive. Besides. the warning phrasing is also a bit
|
inapropriate, we should use the word catchpoint, and tell
|
inapropriate, we should use the word catchpoint, and tell
|
the user what type of catchpoint it is. The above is good
|
the user what type of catchpoint it is. The above is good
|
enough for now, though. */
|
enough for now, though. */
|
}
|
}
|
|
|
b = set_raw_breakpoint (gdbarch, sal, bp_breakpoint);
|
b = set_raw_breakpoint (gdbarch, sal, bp_breakpoint);
|
set_breakpoint_count (breakpoint_count + 1);
|
set_breakpoint_count (breakpoint_count + 1);
|
|
|
b->enable_state = bp_enabled;
|
b->enable_state = bp_enabled;
|
b->disposition = tempflag ? disp_del : disp_donttouch;
|
b->disposition = tempflag ? disp_del : disp_donttouch;
|
b->number = breakpoint_count;
|
b->number = breakpoint_count;
|
b->ignore_count = 0;
|
b->ignore_count = 0;
|
b->loc->cond = cond;
|
b->loc->cond = cond;
|
b->addr_string = addr_string;
|
b->addr_string = addr_string;
|
b->language = language_ada;
|
b->language = language_ada;
|
b->cond_string = cond_string;
|
b->cond_string = cond_string;
|
b->exp_string = exp_string;
|
b->exp_string = exp_string;
|
b->thread = -1;
|
b->thread = -1;
|
b->ops = ops;
|
b->ops = ops;
|
|
|
mention (b);
|
mention (b);
|
update_global_location_list (1);
|
update_global_location_list (1);
|
}
|
}
|
|
|
/* Implement the "catch exception" command. */
|
/* Implement the "catch exception" command. */
|
|
|
static void
|
static void
|
catch_ada_exception_command (char *arg, int from_tty,
|
catch_ada_exception_command (char *arg, int from_tty,
|
struct cmd_list_element *command)
|
struct cmd_list_element *command)
|
{
|
{
|
struct gdbarch *gdbarch = get_current_arch ();
|
struct gdbarch *gdbarch = get_current_arch ();
|
int tempflag;
|
int tempflag;
|
struct symtab_and_line sal;
|
struct symtab_and_line sal;
|
enum bptype type;
|
enum bptype type;
|
char *addr_string = NULL;
|
char *addr_string = NULL;
|
char *exp_string = NULL;
|
char *exp_string = NULL;
|
char *cond_string = NULL;
|
char *cond_string = NULL;
|
struct expression *cond = NULL;
|
struct expression *cond = NULL;
|
struct breakpoint_ops *ops = NULL;
|
struct breakpoint_ops *ops = NULL;
|
|
|
tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
|
|
if (!arg)
|
if (!arg)
|
arg = "";
|
arg = "";
|
sal = ada_decode_exception_location (arg, &addr_string, &exp_string,
|
sal = ada_decode_exception_location (arg, &addr_string, &exp_string,
|
&cond_string, &cond, &ops);
|
&cond_string, &cond, &ops);
|
create_ada_exception_breakpoint (gdbarch, sal, addr_string, exp_string,
|
create_ada_exception_breakpoint (gdbarch, sal, addr_string, exp_string,
|
cond_string, cond, ops, tempflag,
|
cond_string, cond, ops, tempflag,
|
from_tty);
|
from_tty);
|
}
|
}
|
|
|
/* Cleanup function for a syscall filter list. */
|
/* Cleanup function for a syscall filter list. */
|
static void
|
static void
|
clean_up_filters (void *arg)
|
clean_up_filters (void *arg)
|
{
|
{
|
VEC(int) *iter = *(VEC(int) **) arg;
|
VEC(int) *iter = *(VEC(int) **) arg;
|
VEC_free (int, iter);
|
VEC_free (int, iter);
|
}
|
}
|
|
|
/* Splits the argument using space as delimiter. Returns an xmalloc'd
|
/* Splits the argument using space as delimiter. Returns an xmalloc'd
|
filter list, or NULL if no filtering is required. */
|
filter list, or NULL if no filtering is required. */
|
static VEC(int) *
|
static VEC(int) *
|
catch_syscall_split_args (char *arg)
|
catch_syscall_split_args (char *arg)
|
{
|
{
|
VEC(int) *result = NULL;
|
VEC(int) *result = NULL;
|
struct cleanup *cleanup = make_cleanup (clean_up_filters, &result);
|
struct cleanup *cleanup = make_cleanup (clean_up_filters, &result);
|
|
|
while (*arg != '\0')
|
while (*arg != '\0')
|
{
|
{
|
int i, syscall_number;
|
int i, syscall_number;
|
char *endptr;
|
char *endptr;
|
char cur_name[128];
|
char cur_name[128];
|
struct syscall s;
|
struct syscall s;
|
|
|
/* Skip whitespace. */
|
/* Skip whitespace. */
|
while (isspace (*arg))
|
while (isspace (*arg))
|
arg++;
|
arg++;
|
|
|
for (i = 0; i < 127 && arg[i] && !isspace (arg[i]); ++i)
|
for (i = 0; i < 127 && arg[i] && !isspace (arg[i]); ++i)
|
cur_name[i] = arg[i];
|
cur_name[i] = arg[i];
|
cur_name[i] = '\0';
|
cur_name[i] = '\0';
|
arg += i;
|
arg += i;
|
|
|
/* Check if the user provided a syscall name or a number. */
|
/* Check if the user provided a syscall name or a number. */
|
syscall_number = (int) strtol (cur_name, &endptr, 0);
|
syscall_number = (int) strtol (cur_name, &endptr, 0);
|
if (*endptr == '\0')
|
if (*endptr == '\0')
|
get_syscall_by_number (syscall_number, &s);
|
get_syscall_by_number (syscall_number, &s);
|
else
|
else
|
{
|
{
|
/* We have a name. Let's check if it's valid and convert it
|
/* We have a name. Let's check if it's valid and convert it
|
to a number. */
|
to a number. */
|
get_syscall_by_name (cur_name, &s);
|
get_syscall_by_name (cur_name, &s);
|
|
|
if (s.number == UNKNOWN_SYSCALL)
|
if (s.number == UNKNOWN_SYSCALL)
|
/* Here we have to issue an error instead of a warning, because
|
/* Here we have to issue an error instead of a warning, because
|
GDB cannot do anything useful if there's no syscall number to
|
GDB cannot do anything useful if there's no syscall number to
|
be caught. */
|
be caught. */
|
error (_("Unknown syscall name '%s'."), cur_name);
|
error (_("Unknown syscall name '%s'."), cur_name);
|
}
|
}
|
|
|
/* Ok, it's valid. */
|
/* Ok, it's valid. */
|
VEC_safe_push (int, result, s.number);
|
VEC_safe_push (int, result, s.number);
|
}
|
}
|
|
|
discard_cleanups (cleanup);
|
discard_cleanups (cleanup);
|
return result;
|
return result;
|
}
|
}
|
|
|
/* Implement the "catch syscall" command. */
|
/* Implement the "catch syscall" command. */
|
|
|
static void
|
static void
|
catch_syscall_command_1 (char *arg, int from_tty, struct cmd_list_element *command)
|
catch_syscall_command_1 (char *arg, int from_tty, struct cmd_list_element *command)
|
{
|
{
|
int tempflag;
|
int tempflag;
|
VEC(int) *filter;
|
VEC(int) *filter;
|
struct syscall s;
|
struct syscall s;
|
struct gdbarch *gdbarch = get_current_arch ();
|
struct gdbarch *gdbarch = get_current_arch ();
|
|
|
/* Checking if the feature if supported. */
|
/* Checking if the feature if supported. */
|
if (gdbarch_get_syscall_number_p (gdbarch) == 0)
|
if (gdbarch_get_syscall_number_p (gdbarch) == 0)
|
error (_("The feature 'catch syscall' is not supported on \
|
error (_("The feature 'catch syscall' is not supported on \
|
this architeture yet."));
|
this architeture yet."));
|
|
|
tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
|
|
ep_skip_leading_whitespace (&arg);
|
ep_skip_leading_whitespace (&arg);
|
|
|
/* We need to do this first "dummy" translation in order
|
/* We need to do this first "dummy" translation in order
|
to get the syscall XML file loaded or, most important,
|
to get the syscall XML file loaded or, most important,
|
to display a warning to the user if there's no XML file
|
to display a warning to the user if there's no XML file
|
for his/her architecture. */
|
for his/her architecture. */
|
get_syscall_by_number (0, &s);
|
get_syscall_by_number (0, &s);
|
|
|
/* The allowed syntax is:
|
/* The allowed syntax is:
|
catch syscall
|
catch syscall
|
catch syscall <name | number> [<name | number> ... <name | number>]
|
catch syscall <name | number> [<name | number> ... <name | number>]
|
|
|
Let's check if there's a syscall name. */
|
Let's check if there's a syscall name. */
|
|
|
if (arg != NULL)
|
if (arg != NULL)
|
filter = catch_syscall_split_args (arg);
|
filter = catch_syscall_split_args (arg);
|
else
|
else
|
filter = NULL;
|
filter = NULL;
|
|
|
create_syscall_event_catchpoint (tempflag, filter,
|
create_syscall_event_catchpoint (tempflag, filter,
|
&catch_syscall_breakpoint_ops);
|
&catch_syscall_breakpoint_ops);
|
}
|
}
|
|
|
/* Implement the "catch assert" command. */
|
/* Implement the "catch assert" command. */
|
|
|
static void
|
static void
|
catch_assert_command (char *arg, int from_tty, struct cmd_list_element *command)
|
catch_assert_command (char *arg, int from_tty, struct cmd_list_element *command)
|
{
|
{
|
struct gdbarch *gdbarch = get_current_arch ();
|
struct gdbarch *gdbarch = get_current_arch ();
|
int tempflag;
|
int tempflag;
|
struct symtab_and_line sal;
|
struct symtab_and_line sal;
|
char *addr_string = NULL;
|
char *addr_string = NULL;
|
struct breakpoint_ops *ops = NULL;
|
struct breakpoint_ops *ops = NULL;
|
|
|
tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
|
|
|
if (!arg)
|
if (!arg)
|
arg = "";
|
arg = "";
|
sal = ada_decode_assert_location (arg, &addr_string, &ops);
|
sal = ada_decode_assert_location (arg, &addr_string, &ops);
|
create_ada_exception_breakpoint (gdbarch, sal, addr_string, NULL, NULL, NULL,
|
create_ada_exception_breakpoint (gdbarch, sal, addr_string, NULL, NULL, NULL,
|
ops, tempflag, from_tty);
|
ops, tempflag, from_tty);
|
}
|
}
|
|
|
static void
|
static void
|
catch_command (char *arg, int from_tty)
|
catch_command (char *arg, int from_tty)
|
{
|
{
|
error (_("Catch requires an event name."));
|
error (_("Catch requires an event name."));
|
}
|
}
|
|
|
|
|
static void
|
static void
|
tcatch_command (char *arg, int from_tty)
|
tcatch_command (char *arg, int from_tty)
|
{
|
{
|
error (_("Catch requires an event name."));
|
error (_("Catch requires an event name."));
|
}
|
}
|
|
|
/* Delete breakpoints by address or line. */
|
/* Delete breakpoints by address or line. */
|
|
|
static void
|
static void
|
clear_command (char *arg, int from_tty)
|
clear_command (char *arg, int from_tty)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
VEC(breakpoint_p) *found = 0;
|
VEC(breakpoint_p) *found = 0;
|
int ix;
|
int ix;
|
int default_match;
|
int default_match;
|
struct symtabs_and_lines sals;
|
struct symtabs_and_lines sals;
|
struct symtab_and_line sal;
|
struct symtab_and_line sal;
|
int i;
|
int i;
|
|
|
if (arg)
|
if (arg)
|
{
|
{
|
sals = decode_line_spec (arg, 1);
|
sals = decode_line_spec (arg, 1);
|
default_match = 0;
|
default_match = 0;
|
}
|
}
|
else
|
else
|
{
|
{
|
sals.sals = (struct symtab_and_line *)
|
sals.sals = (struct symtab_and_line *)
|
xmalloc (sizeof (struct symtab_and_line));
|
xmalloc (sizeof (struct symtab_and_line));
|
make_cleanup (xfree, sals.sals);
|
make_cleanup (xfree, sals.sals);
|
init_sal (&sal); /* initialize to zeroes */
|
init_sal (&sal); /* initialize to zeroes */
|
sal.line = default_breakpoint_line;
|
sal.line = default_breakpoint_line;
|
sal.symtab = default_breakpoint_symtab;
|
sal.symtab = default_breakpoint_symtab;
|
sal.pc = default_breakpoint_address;
|
sal.pc = default_breakpoint_address;
|
sal.pspace = default_breakpoint_pspace;
|
sal.pspace = default_breakpoint_pspace;
|
if (sal.symtab == 0)
|
if (sal.symtab == 0)
|
error (_("No source file specified."));
|
error (_("No source file specified."));
|
|
|
sals.sals[0] = sal;
|
sals.sals[0] = sal;
|
sals.nelts = 1;
|
sals.nelts = 1;
|
|
|
default_match = 1;
|
default_match = 1;
|
}
|
}
|
|
|
/* We don't call resolve_sal_pc here. That's not
|
/* We don't call resolve_sal_pc here. That's not
|
as bad as it seems, because all existing breakpoints
|
as bad as it seems, because all existing breakpoints
|
typically have both file/line and pc set. So, if
|
typically have both file/line and pc set. So, if
|
clear is given file/line, we can match this to existing
|
clear is given file/line, we can match this to existing
|
breakpoint without obtaining pc at all.
|
breakpoint without obtaining pc at all.
|
|
|
We only support clearing given the address explicitly
|
We only support clearing given the address explicitly
|
present in breakpoint table. Say, we've set breakpoint
|
present in breakpoint table. Say, we've set breakpoint
|
at file:line. There were several PC values for that file:line,
|
at file:line. There were several PC values for that file:line,
|
due to optimization, all in one block.
|
due to optimization, all in one block.
|
We've picked one PC value. If "clear" is issued with another
|
We've picked one PC value. If "clear" is issued with another
|
PC corresponding to the same file:line, the breakpoint won't
|
PC corresponding to the same file:line, the breakpoint won't
|
be cleared. We probably can still clear the breakpoint, but
|
be cleared. We probably can still clear the breakpoint, but
|
since the other PC value is never presented to user, user
|
since the other PC value is never presented to user, user
|
can only find it by guessing, and it does not seem important
|
can only find it by guessing, and it does not seem important
|
to support that. */
|
to support that. */
|
|
|
/* For each line spec given, delete bps which correspond
|
/* For each line spec given, delete bps which correspond
|
to it. Do it in two passes, solely to preserve the current
|
to it. Do it in two passes, solely to preserve the current
|
behavior that from_tty is forced true if we delete more than
|
behavior that from_tty is forced true if we delete more than
|
one breakpoint. */
|
one breakpoint. */
|
|
|
found = NULL;
|
found = NULL;
|
for (i = 0; i < sals.nelts; i++)
|
for (i = 0; i < sals.nelts; i++)
|
{
|
{
|
/* If exact pc given, clear bpts at that pc.
|
/* If exact pc given, clear bpts at that pc.
|
If line given (pc == 0), clear all bpts on specified line.
|
If line given (pc == 0), clear all bpts on specified line.
|
If defaulting, clear all bpts on default line
|
If defaulting, clear all bpts on default line
|
or at default pc.
|
or at default pc.
|
|
|
defaulting sal.pc != 0 tests to do
|
defaulting sal.pc != 0 tests to do
|
|
|
0 1 pc
|
0 1 pc
|
1 1 pc _and_ line
|
1 1 pc _and_ line
|
0 0 line
|
0 0 line
|
1 0 <can't happen> */
|
1 0 <can't happen> */
|
|
|
sal = sals.sals[i];
|
sal = sals.sals[i];
|
|
|
/* Find all matching breakpoints and add them to
|
/* Find all matching breakpoints and add them to
|
'found'. */
|
'found'. */
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
{
|
{
|
int match = 0;
|
int match = 0;
|
/* Are we going to delete b? */
|
/* Are we going to delete b? */
|
if (b->type != bp_none
|
if (b->type != bp_none
|
&& b->type != bp_watchpoint
|
&& b->type != bp_watchpoint
|
&& b->type != bp_hardware_watchpoint
|
&& b->type != bp_hardware_watchpoint
|
&& b->type != bp_read_watchpoint
|
&& b->type != bp_read_watchpoint
|
&& b->type != bp_access_watchpoint)
|
&& b->type != bp_access_watchpoint)
|
{
|
{
|
struct bp_location *loc = b->loc;
|
struct bp_location *loc = b->loc;
|
for (; loc; loc = loc->next)
|
for (; loc; loc = loc->next)
|
{
|
{
|
int pc_match = sal.pc
|
int pc_match = sal.pc
|
&& (loc->pspace == sal.pspace)
|
&& (loc->pspace == sal.pspace)
|
&& (loc->address == sal.pc)
|
&& (loc->address == sal.pc)
|
&& (!section_is_overlay (loc->section)
|
&& (!section_is_overlay (loc->section)
|
|| loc->section == sal.section);
|
|| loc->section == sal.section);
|
int line_match = ((default_match || (0 == sal.pc))
|
int line_match = ((default_match || (0 == sal.pc))
|
&& b->source_file != NULL
|
&& b->source_file != NULL
|
&& sal.symtab != NULL
|
&& sal.symtab != NULL
|
&& sal.pspace == loc->pspace
|
&& sal.pspace == loc->pspace
|
&& strcmp (b->source_file, sal.symtab->filename) == 0
|
&& strcmp (b->source_file, sal.symtab->filename) == 0
|
&& b->line_number == sal.line);
|
&& b->line_number == sal.line);
|
if (pc_match || line_match)
|
if (pc_match || line_match)
|
{
|
{
|
match = 1;
|
match = 1;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (match)
|
if (match)
|
VEC_safe_push(breakpoint_p, found, b);
|
VEC_safe_push(breakpoint_p, found, b);
|
}
|
}
|
}
|
}
|
/* Now go thru the 'found' chain and delete them. */
|
/* Now go thru the 'found' chain and delete them. */
|
if (VEC_empty(breakpoint_p, found))
|
if (VEC_empty(breakpoint_p, found))
|
{
|
{
|
if (arg)
|
if (arg)
|
error (_("No breakpoint at %s."), arg);
|
error (_("No breakpoint at %s."), arg);
|
else
|
else
|
error (_("No breakpoint at this line."));
|
error (_("No breakpoint at this line."));
|
}
|
}
|
|
|
if (VEC_length(breakpoint_p, found) > 1)
|
if (VEC_length(breakpoint_p, found) > 1)
|
from_tty = 1; /* Always report if deleted more than one */
|
from_tty = 1; /* Always report if deleted more than one */
|
if (from_tty)
|
if (from_tty)
|
{
|
{
|
if (VEC_length(breakpoint_p, found) == 1)
|
if (VEC_length(breakpoint_p, found) == 1)
|
printf_unfiltered (_("Deleted breakpoint "));
|
printf_unfiltered (_("Deleted breakpoint "));
|
else
|
else
|
printf_unfiltered (_("Deleted breakpoints "));
|
printf_unfiltered (_("Deleted breakpoints "));
|
}
|
}
|
breakpoints_changed ();
|
breakpoints_changed ();
|
|
|
for (ix = 0; VEC_iterate(breakpoint_p, found, ix, b); ix++)
|
for (ix = 0; VEC_iterate(breakpoint_p, found, ix, b); ix++)
|
{
|
{
|
if (from_tty)
|
if (from_tty)
|
printf_unfiltered ("%d ", b->number);
|
printf_unfiltered ("%d ", b->number);
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
}
|
}
|
if (from_tty)
|
if (from_tty)
|
putchar_unfiltered ('\n');
|
putchar_unfiltered ('\n');
|
}
|
}
|
|
|
/* Delete breakpoint in BS if they are `delete' breakpoints and
|
/* Delete breakpoint in BS if they are `delete' breakpoints and
|
all breakpoints that are marked for deletion, whether hit or not.
|
all breakpoints that are marked for deletion, whether hit or not.
|
This is called after any breakpoint is hit, or after errors. */
|
This is called after any breakpoint is hit, or after errors. */
|
|
|
void
|
void
|
breakpoint_auto_delete (bpstat bs)
|
breakpoint_auto_delete (bpstat bs)
|
{
|
{
|
struct breakpoint *b, *temp;
|
struct breakpoint *b, *temp;
|
|
|
for (; bs; bs = bs->next)
|
for (; bs; bs = bs->next)
|
if (bs->breakpoint_at
|
if (bs->breakpoint_at
|
&& bs->breakpoint_at->owner
|
&& bs->breakpoint_at->owner
|
&& bs->breakpoint_at->owner->disposition == disp_del
|
&& bs->breakpoint_at->owner->disposition == disp_del
|
&& bs->stop)
|
&& bs->stop)
|
delete_breakpoint (bs->breakpoint_at->owner);
|
delete_breakpoint (bs->breakpoint_at->owner);
|
|
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
{
|
{
|
if (b->disposition == disp_del_at_next_stop)
|
if (b->disposition == disp_del_at_next_stop)
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
}
|
}
|
}
|
}
|
|
|
/* A comparison function for bp_location AP and BP being interfaced to qsort.
|
/* A comparison function for bp_location AP and BP being interfaced to qsort.
|
Sort elements primarily by their ADDRESS (no matter what does
|
Sort elements primarily by their ADDRESS (no matter what does
|
breakpoint_address_is_meaningful say for its OWNER), secondarily by ordering
|
breakpoint_address_is_meaningful say for its OWNER), secondarily by ordering
|
first bp_permanent OWNERed elements and terciarily just ensuring the array
|
first bp_permanent OWNERed elements and terciarily just ensuring the array
|
is sorted stable way despite qsort being an instable algorithm. */
|
is sorted stable way despite qsort being an instable algorithm. */
|
|
|
static int
|
static int
|
bp_location_compare (const void *ap, const void *bp)
|
bp_location_compare (const void *ap, const void *bp)
|
{
|
{
|
struct bp_location *a = *(void **) ap;
|
struct bp_location *a = *(void **) ap;
|
struct bp_location *b = *(void **) bp;
|
struct bp_location *b = *(void **) bp;
|
int a_perm = a->owner->enable_state == bp_permanent;
|
int a_perm = a->owner->enable_state == bp_permanent;
|
int b_perm = b->owner->enable_state == bp_permanent;
|
int b_perm = b->owner->enable_state == bp_permanent;
|
|
|
if (a->address != b->address)
|
if (a->address != b->address)
|
return (a->address > b->address) - (a->address < b->address);
|
return (a->address > b->address) - (a->address < b->address);
|
|
|
/* Sort permanent breakpoints first. */
|
/* Sort permanent breakpoints first. */
|
if (a_perm != b_perm)
|
if (a_perm != b_perm)
|
return (a_perm < b_perm) - (a_perm > b_perm);
|
return (a_perm < b_perm) - (a_perm > b_perm);
|
|
|
/* Make the user-visible order stable across GDB runs. Locations of the same
|
/* Make the user-visible order stable across GDB runs. Locations of the same
|
breakpoint can be sorted in arbitrary order. */
|
breakpoint can be sorted in arbitrary order. */
|
|
|
if (a->owner->number != b->owner->number)
|
if (a->owner->number != b->owner->number)
|
return (a->owner->number > b->owner->number)
|
return (a->owner->number > b->owner->number)
|
- (a->owner->number < b->owner->number);
|
- (a->owner->number < b->owner->number);
|
|
|
return (a > b) - (a < b);
|
return (a > b) - (a < b);
|
}
|
}
|
|
|
/* Set bp_location_placed_address_before_address_max and
|
/* Set bp_location_placed_address_before_address_max and
|
bp_location_shadow_len_after_address_max according to the current content of
|
bp_location_shadow_len_after_address_max according to the current content of
|
the bp_location array. */
|
the bp_location array. */
|
|
|
static void
|
static void
|
bp_location_target_extensions_update (void)
|
bp_location_target_extensions_update (void)
|
{
|
{
|
struct bp_location *bl, **blp_tmp;
|
struct bp_location *bl, **blp_tmp;
|
|
|
bp_location_placed_address_before_address_max = 0;
|
bp_location_placed_address_before_address_max = 0;
|
bp_location_shadow_len_after_address_max = 0;
|
bp_location_shadow_len_after_address_max = 0;
|
|
|
ALL_BP_LOCATIONS (bl, blp_tmp)
|
ALL_BP_LOCATIONS (bl, blp_tmp)
|
{
|
{
|
CORE_ADDR start, end, addr;
|
CORE_ADDR start, end, addr;
|
|
|
if (!bp_location_has_shadow (bl))
|
if (!bp_location_has_shadow (bl))
|
continue;
|
continue;
|
|
|
start = bl->target_info.placed_address;
|
start = bl->target_info.placed_address;
|
end = start + bl->target_info.shadow_len;
|
end = start + bl->target_info.shadow_len;
|
|
|
gdb_assert (bl->address >= start);
|
gdb_assert (bl->address >= start);
|
addr = bl->address - start;
|
addr = bl->address - start;
|
if (addr > bp_location_placed_address_before_address_max)
|
if (addr > bp_location_placed_address_before_address_max)
|
bp_location_placed_address_before_address_max = addr;
|
bp_location_placed_address_before_address_max = addr;
|
|
|
/* Zero SHADOW_LEN would not pass bp_location_has_shadow. */
|
/* Zero SHADOW_LEN would not pass bp_location_has_shadow. */
|
|
|
gdb_assert (bl->address < end);
|
gdb_assert (bl->address < end);
|
addr = end - bl->address;
|
addr = end - bl->address;
|
if (addr > bp_location_shadow_len_after_address_max)
|
if (addr > bp_location_shadow_len_after_address_max)
|
bp_location_shadow_len_after_address_max = addr;
|
bp_location_shadow_len_after_address_max = addr;
|
}
|
}
|
}
|
}
|
|
|
/* If SHOULD_INSERT is false, do not insert any breakpoint locations
|
/* If SHOULD_INSERT is false, do not insert any breakpoint locations
|
into the inferior, only remove already-inserted locations that no
|
into the inferior, only remove already-inserted locations that no
|
longer should be inserted. Functions that delete a breakpoint or
|
longer should be inserted. Functions that delete a breakpoint or
|
breakpoints should pass false, so that deleting a breakpoint
|
breakpoints should pass false, so that deleting a breakpoint
|
doesn't have the side effect of inserting the locations of other
|
doesn't have the side effect of inserting the locations of other
|
breakpoints that are marked not-inserted, but should_be_inserted
|
breakpoints that are marked not-inserted, but should_be_inserted
|
returns true on them.
|
returns true on them.
|
|
|
This behaviour is useful is situations close to tear-down -- e.g.,
|
This behaviour is useful is situations close to tear-down -- e.g.,
|
after an exec, while the target still has execution, but breakpoint
|
after an exec, while the target still has execution, but breakpoint
|
shadows of the previous executable image should *NOT* be restored
|
shadows of the previous executable image should *NOT* be restored
|
to the new image; or before detaching, where the target still has
|
to the new image; or before detaching, where the target still has
|
execution and wants to delete breakpoints from GDB's lists, and all
|
execution and wants to delete breakpoints from GDB's lists, and all
|
breakpoints had already been removed from the inferior. */
|
breakpoints had already been removed from the inferior. */
|
|
|
static void
|
static void
|
update_global_location_list (int should_insert)
|
update_global_location_list (int should_insert)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
struct bp_location **locp, *loc;
|
struct bp_location **locp, *loc;
|
struct cleanup *cleanups;
|
struct cleanup *cleanups;
|
|
|
/* Used in the duplicates detection below. When iterating over all
|
/* Used in the duplicates detection below. When iterating over all
|
bp_locations, points to the first bp_location of a given address.
|
bp_locations, points to the first bp_location of a given address.
|
Breakpoints and watchpoints of different types are never
|
Breakpoints and watchpoints of different types are never
|
duplicates of each other. Keep one pointer for each type of
|
duplicates of each other. Keep one pointer for each type of
|
breakpoint/watchpoint, so we only need to loop over all locations
|
breakpoint/watchpoint, so we only need to loop over all locations
|
once. */
|
once. */
|
struct bp_location *bp_loc_first; /* breakpoint */
|
struct bp_location *bp_loc_first; /* breakpoint */
|
struct bp_location *wp_loc_first; /* hardware watchpoint */
|
struct bp_location *wp_loc_first; /* hardware watchpoint */
|
struct bp_location *awp_loc_first; /* access watchpoint */
|
struct bp_location *awp_loc_first; /* access watchpoint */
|
struct bp_location *rwp_loc_first; /* read watchpoint */
|
struct bp_location *rwp_loc_first; /* read watchpoint */
|
|
|
/* Saved former bp_location array which we compare against the newly built
|
/* Saved former bp_location array which we compare against the newly built
|
bp_location from the current state of ALL_BREAKPOINTS. */
|
bp_location from the current state of ALL_BREAKPOINTS. */
|
struct bp_location **old_location, **old_locp;
|
struct bp_location **old_location, **old_locp;
|
unsigned old_location_count;
|
unsigned old_location_count;
|
|
|
old_location = bp_location;
|
old_location = bp_location;
|
old_location_count = bp_location_count;
|
old_location_count = bp_location_count;
|
bp_location = NULL;
|
bp_location = NULL;
|
bp_location_count = 0;
|
bp_location_count = 0;
|
cleanups = make_cleanup (xfree, old_location);
|
cleanups = make_cleanup (xfree, old_location);
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
for (loc = b->loc; loc; loc = loc->next)
|
for (loc = b->loc; loc; loc = loc->next)
|
bp_location_count++;
|
bp_location_count++;
|
|
|
bp_location = xmalloc (sizeof (*bp_location) * bp_location_count);
|
bp_location = xmalloc (sizeof (*bp_location) * bp_location_count);
|
locp = bp_location;
|
locp = bp_location;
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
for (loc = b->loc; loc; loc = loc->next)
|
for (loc = b->loc; loc; loc = loc->next)
|
*locp++ = loc;
|
*locp++ = loc;
|
qsort (bp_location, bp_location_count, sizeof (*bp_location),
|
qsort (bp_location, bp_location_count, sizeof (*bp_location),
|
bp_location_compare);
|
bp_location_compare);
|
|
|
bp_location_target_extensions_update ();
|
bp_location_target_extensions_update ();
|
|
|
/* Identify bp_location instances that are no longer present in the new
|
/* Identify bp_location instances that are no longer present in the new
|
list, and therefore should be freed. Note that it's not necessary that
|
list, and therefore should be freed. Note that it's not necessary that
|
those locations should be removed from inferior -- if there's another
|
those locations should be removed from inferior -- if there's another
|
location at the same address (previously marked as duplicate),
|
location at the same address (previously marked as duplicate),
|
we don't need to remove/insert the location.
|
we don't need to remove/insert the location.
|
|
|
LOCP is kept in sync with OLD_LOCP, each pointing to the current and
|
LOCP is kept in sync with OLD_LOCP, each pointing to the current and
|
former bp_location array state respectively. */
|
former bp_location array state respectively. */
|
|
|
locp = bp_location;
|
locp = bp_location;
|
for (old_locp = old_location; old_locp < old_location + old_location_count;
|
for (old_locp = old_location; old_locp < old_location + old_location_count;
|
old_locp++)
|
old_locp++)
|
{
|
{
|
struct bp_location *old_loc = *old_locp;
|
struct bp_location *old_loc = *old_locp;
|
struct bp_location **loc2p;
|
struct bp_location **loc2p;
|
|
|
/* Tells if 'old_loc' is found amoung the new locations. If not, we
|
/* Tells if 'old_loc' is found amoung the new locations. If not, we
|
have to free it. */
|
have to free it. */
|
int found_object = 0;
|
int found_object = 0;
|
/* Tells if the location should remain inserted in the target. */
|
/* Tells if the location should remain inserted in the target. */
|
int keep_in_target = 0;
|
int keep_in_target = 0;
|
int removed = 0;
|
int removed = 0;
|
|
|
/* Skip LOCP entries which will definitely never be needed. Stop either
|
/* Skip LOCP entries which will definitely never be needed. Stop either
|
at or being the one matching OLD_LOC. */
|
at or being the one matching OLD_LOC. */
|
while (locp < bp_location + bp_location_count
|
while (locp < bp_location + bp_location_count
|
&& (*locp)->address < old_loc->address)
|
&& (*locp)->address < old_loc->address)
|
locp++;
|
locp++;
|
|
|
for (loc2p = locp;
|
for (loc2p = locp;
|
(loc2p < bp_location + bp_location_count
|
(loc2p < bp_location + bp_location_count
|
&& (*loc2p)->address == old_loc->address);
|
&& (*loc2p)->address == old_loc->address);
|
loc2p++)
|
loc2p++)
|
{
|
{
|
if (*loc2p == old_loc)
|
if (*loc2p == old_loc)
|
{
|
{
|
found_object = 1;
|
found_object = 1;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* If this location is no longer present, and inserted, look if there's
|
/* If this location is no longer present, and inserted, look if there's
|
maybe a new location at the same address. If so, mark that one
|
maybe a new location at the same address. If so, mark that one
|
inserted, and don't remove this one. This is needed so that we
|
inserted, and don't remove this one. This is needed so that we
|
don't have a time window where a breakpoint at certain location is not
|
don't have a time window where a breakpoint at certain location is not
|
inserted. */
|
inserted. */
|
|
|
if (old_loc->inserted)
|
if (old_loc->inserted)
|
{
|
{
|
/* If the location is inserted now, we might have to remove it. */
|
/* If the location is inserted now, we might have to remove it. */
|
|
|
if (found_object && should_be_inserted (old_loc))
|
if (found_object && should_be_inserted (old_loc))
|
{
|
{
|
/* The location is still present in the location list, and still
|
/* The location is still present in the location list, and still
|
should be inserted. Don't do anything. */
|
should be inserted. Don't do anything. */
|
keep_in_target = 1;
|
keep_in_target = 1;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* The location is either no longer present, or got disabled.
|
/* The location is either no longer present, or got disabled.
|
See if there's another location at the same address, in which
|
See if there's another location at the same address, in which
|
case we don't need to remove this one from the target. */
|
case we don't need to remove this one from the target. */
|
|
|
if (breakpoint_address_is_meaningful (old_loc->owner))
|
if (breakpoint_address_is_meaningful (old_loc->owner))
|
{
|
{
|
for (loc2p = locp;
|
for (loc2p = locp;
|
(loc2p < bp_location + bp_location_count
|
(loc2p < bp_location + bp_location_count
|
&& (*loc2p)->address == old_loc->address);
|
&& (*loc2p)->address == old_loc->address);
|
loc2p++)
|
loc2p++)
|
{
|
{
|
struct bp_location *loc2 = *loc2p;
|
struct bp_location *loc2 = *loc2p;
|
|
|
if (breakpoint_locations_match (loc2, old_loc))
|
if (breakpoint_locations_match (loc2, old_loc))
|
{
|
{
|
/* For the sake of should_be_inserted.
|
/* For the sake of should_be_inserted.
|
Duplicates check below will fix up this later. */
|
Duplicates check below will fix up this later. */
|
loc2->duplicate = 0;
|
loc2->duplicate = 0;
|
if (loc2 != old_loc && should_be_inserted (loc2))
|
if (loc2 != old_loc && should_be_inserted (loc2))
|
{
|
{
|
loc2->inserted = 1;
|
loc2->inserted = 1;
|
loc2->target_info = old_loc->target_info;
|
loc2->target_info = old_loc->target_info;
|
keep_in_target = 1;
|
keep_in_target = 1;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (!keep_in_target)
|
if (!keep_in_target)
|
{
|
{
|
if (remove_breakpoint (old_loc, mark_uninserted))
|
if (remove_breakpoint (old_loc, mark_uninserted))
|
{
|
{
|
/* This is just about all we can do. We could keep this
|
/* This is just about all we can do. We could keep this
|
location on the global list, and try to remove it next
|
location on the global list, and try to remove it next
|
time, but there's no particular reason why we will
|
time, but there's no particular reason why we will
|
succeed next time.
|
succeed next time.
|
|
|
Note that at this point, old_loc->owner is still valid,
|
Note that at this point, old_loc->owner is still valid,
|
as delete_breakpoint frees the breakpoint only
|
as delete_breakpoint frees the breakpoint only
|
after calling us. */
|
after calling us. */
|
printf_filtered (_("warning: Error removing breakpoint %d\n"),
|
printf_filtered (_("warning: Error removing breakpoint %d\n"),
|
old_loc->owner->number);
|
old_loc->owner->number);
|
}
|
}
|
removed = 1;
|
removed = 1;
|
}
|
}
|
}
|
}
|
|
|
if (!found_object)
|
if (!found_object)
|
{
|
{
|
if (removed && non_stop
|
if (removed && non_stop
|
&& breakpoint_address_is_meaningful (old_loc->owner)
|
&& breakpoint_address_is_meaningful (old_loc->owner)
|
&& !is_hardware_watchpoint (old_loc->owner))
|
&& !is_hardware_watchpoint (old_loc->owner))
|
{
|
{
|
/* This location was removed from the target. In
|
/* This location was removed from the target. In
|
non-stop mode, a race condition is possible where
|
non-stop mode, a race condition is possible where
|
we've removed a breakpoint, but stop events for that
|
we've removed a breakpoint, but stop events for that
|
breakpoint are already queued and will arrive later.
|
breakpoint are already queued and will arrive later.
|
We apply an heuristic to be able to distinguish such
|
We apply an heuristic to be able to distinguish such
|
SIGTRAPs from other random SIGTRAPs: we keep this
|
SIGTRAPs from other random SIGTRAPs: we keep this
|
breakpoint location for a bit, and will retire it
|
breakpoint location for a bit, and will retire it
|
after we see some number of events. The theory here
|
after we see some number of events. The theory here
|
is that reporting of events should, "on the average",
|
is that reporting of events should, "on the average",
|
be fair, so after a while we'll see events from all
|
be fair, so after a while we'll see events from all
|
threads that have anything of interest, and no longer
|
threads that have anything of interest, and no longer
|
need to keep this breakpoint location around. We
|
need to keep this breakpoint location around. We
|
don't hold locations forever so to reduce chances of
|
don't hold locations forever so to reduce chances of
|
mistaking a non-breakpoint SIGTRAP for a breakpoint
|
mistaking a non-breakpoint SIGTRAP for a breakpoint
|
SIGTRAP.
|
SIGTRAP.
|
|
|
The heuristic failing can be disastrous on
|
The heuristic failing can be disastrous on
|
decr_pc_after_break targets.
|
decr_pc_after_break targets.
|
|
|
On decr_pc_after_break targets, like e.g., x86-linux,
|
On decr_pc_after_break targets, like e.g., x86-linux,
|
if we fail to recognize a late breakpoint SIGTRAP,
|
if we fail to recognize a late breakpoint SIGTRAP,
|
because events_till_retirement has reached 0 too
|
because events_till_retirement has reached 0 too
|
soon, we'll fail to do the PC adjustment, and report
|
soon, we'll fail to do the PC adjustment, and report
|
a random SIGTRAP to the user. When the user resumes
|
a random SIGTRAP to the user. When the user resumes
|
the inferior, it will most likely immediately crash
|
the inferior, it will most likely immediately crash
|
with SIGILL/SIGBUS/SEGSEGV, or worse, get silently
|
with SIGILL/SIGBUS/SEGSEGV, or worse, get silently
|
corrupted, because of being resumed e.g., in the
|
corrupted, because of being resumed e.g., in the
|
middle of a multi-byte instruction, or skipped a
|
middle of a multi-byte instruction, or skipped a
|
one-byte instruction. This was actually seen happen
|
one-byte instruction. This was actually seen happen
|
on native x86-linux, and should be less rare on
|
on native x86-linux, and should be less rare on
|
targets that do not support new thread events, like
|
targets that do not support new thread events, like
|
remote, due to the heuristic depending on
|
remote, due to the heuristic depending on
|
thread_count.
|
thread_count.
|
|
|
Mistaking a random SIGTRAP for a breakpoint trap
|
Mistaking a random SIGTRAP for a breakpoint trap
|
causes similar symptoms (PC adjustment applied when
|
causes similar symptoms (PC adjustment applied when
|
it shouldn't), but then again, playing with SIGTRAPs
|
it shouldn't), but then again, playing with SIGTRAPs
|
behind the debugger's back is asking for trouble.
|
behind the debugger's back is asking for trouble.
|
|
|
Since hardware watchpoint traps are always
|
Since hardware watchpoint traps are always
|
distinguishable from other traps, so we don't need to
|
distinguishable from other traps, so we don't need to
|
apply keep hardware watchpoint moribund locations
|
apply keep hardware watchpoint moribund locations
|
around. We simply always ignore hardware watchpoint
|
around. We simply always ignore hardware watchpoint
|
traps we can no longer explain. */
|
traps we can no longer explain. */
|
|
|
old_loc->events_till_retirement = 3 * (thread_count () + 1);
|
old_loc->events_till_retirement = 3 * (thread_count () + 1);
|
old_loc->owner = NULL;
|
old_loc->owner = NULL;
|
|
|
VEC_safe_push (bp_location_p, moribund_locations, old_loc);
|
VEC_safe_push (bp_location_p, moribund_locations, old_loc);
|
}
|
}
|
else
|
else
|
free_bp_location (old_loc);
|
free_bp_location (old_loc);
|
}
|
}
|
}
|
}
|
|
|
/* Rescan breakpoints at the same address and section, marking the
|
/* Rescan breakpoints at the same address and section, marking the
|
first one as "first" and any others as "duplicates". This is so
|
first one as "first" and any others as "duplicates". This is so
|
that the bpt instruction is only inserted once. If we have a
|
that the bpt instruction is only inserted once. If we have a
|
permanent breakpoint at the same place as BPT, make that one the
|
permanent breakpoint at the same place as BPT, make that one the
|
official one, and the rest as duplicates. Permanent breakpoints
|
official one, and the rest as duplicates. Permanent breakpoints
|
are sorted first for the same address.
|
are sorted first for the same address.
|
|
|
Do the same for hardware watchpoints, but also considering the
|
Do the same for hardware watchpoints, but also considering the
|
watchpoint's type (regular/access/read) and length. */
|
watchpoint's type (regular/access/read) and length. */
|
|
|
bp_loc_first = NULL;
|
bp_loc_first = NULL;
|
wp_loc_first = NULL;
|
wp_loc_first = NULL;
|
awp_loc_first = NULL;
|
awp_loc_first = NULL;
|
rwp_loc_first = NULL;
|
rwp_loc_first = NULL;
|
ALL_BP_LOCATIONS (loc, locp)
|
ALL_BP_LOCATIONS (loc, locp)
|
{
|
{
|
struct breakpoint *b = loc->owner;
|
struct breakpoint *b = loc->owner;
|
struct bp_location **loc_first_p;
|
struct bp_location **loc_first_p;
|
|
|
if (b->enable_state == bp_disabled
|
if (b->enable_state == bp_disabled
|
|| b->enable_state == bp_call_disabled
|
|| b->enable_state == bp_call_disabled
|
|| b->enable_state == bp_startup_disabled
|
|| b->enable_state == bp_startup_disabled
|
|| !loc->enabled
|
|| !loc->enabled
|
|| loc->shlib_disabled
|
|| loc->shlib_disabled
|
|| !breakpoint_address_is_meaningful (b)
|
|| !breakpoint_address_is_meaningful (b)
|
|| tracepoint_type (b))
|
|| tracepoint_type (b))
|
continue;
|
continue;
|
|
|
/* Permanent breakpoint should always be inserted. */
|
/* Permanent breakpoint should always be inserted. */
|
if (b->enable_state == bp_permanent && ! loc->inserted)
|
if (b->enable_state == bp_permanent && ! loc->inserted)
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("allegedly permanent breakpoint is not "
|
_("allegedly permanent breakpoint is not "
|
"actually inserted"));
|
"actually inserted"));
|
|
|
if (b->type == bp_hardware_watchpoint)
|
if (b->type == bp_hardware_watchpoint)
|
loc_first_p = &wp_loc_first;
|
loc_first_p = &wp_loc_first;
|
else if (b->type == bp_read_watchpoint)
|
else if (b->type == bp_read_watchpoint)
|
loc_first_p = &rwp_loc_first;
|
loc_first_p = &rwp_loc_first;
|
else if (b->type == bp_access_watchpoint)
|
else if (b->type == bp_access_watchpoint)
|
loc_first_p = &awp_loc_first;
|
loc_first_p = &awp_loc_first;
|
else
|
else
|
loc_first_p = &bp_loc_first;
|
loc_first_p = &bp_loc_first;
|
|
|
if (*loc_first_p == NULL
|
if (*loc_first_p == NULL
|
|| (overlay_debugging && loc->section != (*loc_first_p)->section)
|
|| (overlay_debugging && loc->section != (*loc_first_p)->section)
|
|| !breakpoint_locations_match (loc, *loc_first_p))
|
|| !breakpoint_locations_match (loc, *loc_first_p))
|
{
|
{
|
*loc_first_p = loc;
|
*loc_first_p = loc;
|
loc->duplicate = 0;
|
loc->duplicate = 0;
|
continue;
|
continue;
|
}
|
}
|
|
|
loc->duplicate = 1;
|
loc->duplicate = 1;
|
|
|
if ((*loc_first_p)->owner->enable_state == bp_permanent && loc->inserted
|
if ((*loc_first_p)->owner->enable_state == bp_permanent && loc->inserted
|
&& b->enable_state != bp_permanent)
|
&& b->enable_state != bp_permanent)
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("another breakpoint was inserted on top of "
|
_("another breakpoint was inserted on top of "
|
"a permanent breakpoint"));
|
"a permanent breakpoint"));
|
}
|
}
|
|
|
if (breakpoints_always_inserted_mode () && should_insert
|
if (breakpoints_always_inserted_mode () && should_insert
|
&& (have_live_inferiors ()
|
&& (have_live_inferiors ()
|
|| (gdbarch_has_global_breakpoints (target_gdbarch))))
|
|| (gdbarch_has_global_breakpoints (target_gdbarch))))
|
insert_breakpoint_locations ();
|
insert_breakpoint_locations ();
|
|
|
do_cleanups (cleanups);
|
do_cleanups (cleanups);
|
}
|
}
|
|
|
void
|
void
|
breakpoint_retire_moribund (void)
|
breakpoint_retire_moribund (void)
|
{
|
{
|
struct bp_location *loc;
|
struct bp_location *loc;
|
int ix;
|
int ix;
|
|
|
for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix)
|
for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix)
|
if (--(loc->events_till_retirement) == 0)
|
if (--(loc->events_till_retirement) == 0)
|
{
|
{
|
free_bp_location (loc);
|
free_bp_location (loc);
|
VEC_unordered_remove (bp_location_p, moribund_locations, ix);
|
VEC_unordered_remove (bp_location_p, moribund_locations, ix);
|
--ix;
|
--ix;
|
}
|
}
|
}
|
}
|
|
|
static void
|
static void
|
update_global_location_list_nothrow (int inserting)
|
update_global_location_list_nothrow (int inserting)
|
{
|
{
|
struct gdb_exception e;
|
struct gdb_exception e;
|
TRY_CATCH (e, RETURN_MASK_ERROR)
|
TRY_CATCH (e, RETURN_MASK_ERROR)
|
update_global_location_list (inserting);
|
update_global_location_list (inserting);
|
}
|
}
|
|
|
/* Clear BPT from a BPS. */
|
/* Clear BPT from a BPS. */
|
static void
|
static void
|
bpstat_remove_breakpoint (bpstat bps, struct breakpoint *bpt)
|
bpstat_remove_breakpoint (bpstat bps, struct breakpoint *bpt)
|
{
|
{
|
bpstat bs;
|
bpstat bs;
|
for (bs = bps; bs; bs = bs->next)
|
for (bs = bps; bs; bs = bs->next)
|
if (bs->breakpoint_at && bs->breakpoint_at->owner == bpt)
|
if (bs->breakpoint_at && bs->breakpoint_at->owner == bpt)
|
{
|
{
|
bs->breakpoint_at = NULL;
|
bs->breakpoint_at = NULL;
|
bs->old_val = NULL;
|
bs->old_val = NULL;
|
/* bs->commands will be freed later. */
|
/* bs->commands will be freed later. */
|
}
|
}
|
}
|
}
|
|
|
/* Callback for iterate_over_threads. */
|
/* Callback for iterate_over_threads. */
|
static int
|
static int
|
bpstat_remove_breakpoint_callback (struct thread_info *th, void *data)
|
bpstat_remove_breakpoint_callback (struct thread_info *th, void *data)
|
{
|
{
|
struct breakpoint *bpt = data;
|
struct breakpoint *bpt = data;
|
bpstat_remove_breakpoint (th->stop_bpstat, bpt);
|
bpstat_remove_breakpoint (th->stop_bpstat, bpt);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Delete a breakpoint and clean up all traces of it in the data
|
/* Delete a breakpoint and clean up all traces of it in the data
|
structures. */
|
structures. */
|
|
|
void
|
void
|
delete_breakpoint (struct breakpoint *bpt)
|
delete_breakpoint (struct breakpoint *bpt)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
struct bp_location *loc, *next;
|
struct bp_location *loc, *next;
|
|
|
gdb_assert (bpt != NULL);
|
gdb_assert (bpt != NULL);
|
|
|
/* Has this bp already been deleted? This can happen because multiple
|
/* Has this bp already been deleted? This can happen because multiple
|
lists can hold pointers to bp's. bpstat lists are especial culprits.
|
lists can hold pointers to bp's. bpstat lists are especial culprits.
|
|
|
One example of this happening is a watchpoint's scope bp. When the
|
One example of this happening is a watchpoint's scope bp. When the
|
scope bp triggers, we notice that the watchpoint is out of scope, and
|
scope bp triggers, we notice that the watchpoint is out of scope, and
|
delete it. We also delete its scope bp. But the scope bp is marked
|
delete it. We also delete its scope bp. But the scope bp is marked
|
"auto-deleting", and is already on a bpstat. That bpstat is then
|
"auto-deleting", and is already on a bpstat. That bpstat is then
|
checked for auto-deleting bp's, which are deleted.
|
checked for auto-deleting bp's, which are deleted.
|
|
|
A real solution to this problem might involve reference counts in bp's,
|
A real solution to this problem might involve reference counts in bp's,
|
and/or giving them pointers back to their referencing bpstat's, and
|
and/or giving them pointers back to their referencing bpstat's, and
|
teaching delete_breakpoint to only free a bp's storage when no more
|
teaching delete_breakpoint to only free a bp's storage when no more
|
references were extent. A cheaper bandaid was chosen. */
|
references were extent. A cheaper bandaid was chosen. */
|
if (bpt->type == bp_none)
|
if (bpt->type == bp_none)
|
return;
|
return;
|
|
|
/* At least avoid this stale reference until the reference counting of
|
/* At least avoid this stale reference until the reference counting of
|
breakpoints gets resolved. */
|
breakpoints gets resolved. */
|
if (bpt->related_breakpoint != NULL)
|
if (bpt->related_breakpoint != NULL)
|
{
|
{
|
gdb_assert (bpt->related_breakpoint->related_breakpoint == bpt);
|
gdb_assert (bpt->related_breakpoint->related_breakpoint == bpt);
|
bpt->related_breakpoint->disposition = disp_del_at_next_stop;
|
bpt->related_breakpoint->disposition = disp_del_at_next_stop;
|
bpt->related_breakpoint->related_breakpoint = NULL;
|
bpt->related_breakpoint->related_breakpoint = NULL;
|
bpt->related_breakpoint = NULL;
|
bpt->related_breakpoint = NULL;
|
}
|
}
|
|
|
observer_notify_breakpoint_deleted (bpt->number);
|
observer_notify_breakpoint_deleted (bpt->number);
|
|
|
if (breakpoint_chain == bpt)
|
if (breakpoint_chain == bpt)
|
breakpoint_chain = bpt->next;
|
breakpoint_chain = bpt->next;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->next == bpt)
|
if (b->next == bpt)
|
{
|
{
|
b->next = bpt->next;
|
b->next = bpt->next;
|
break;
|
break;
|
}
|
}
|
|
|
free_command_lines (&bpt->commands);
|
free_command_lines (&bpt->commands);
|
if (bpt->cond_string != NULL)
|
if (bpt->cond_string != NULL)
|
xfree (bpt->cond_string);
|
xfree (bpt->cond_string);
|
if (bpt->addr_string != NULL)
|
if (bpt->addr_string != NULL)
|
xfree (bpt->addr_string);
|
xfree (bpt->addr_string);
|
if (bpt->exp != NULL)
|
if (bpt->exp != NULL)
|
xfree (bpt->exp);
|
xfree (bpt->exp);
|
if (bpt->exp_string != NULL)
|
if (bpt->exp_string != NULL)
|
xfree (bpt->exp_string);
|
xfree (bpt->exp_string);
|
if (bpt->val != NULL)
|
if (bpt->val != NULL)
|
value_free (bpt->val);
|
value_free (bpt->val);
|
if (bpt->source_file != NULL)
|
if (bpt->source_file != NULL)
|
xfree (bpt->source_file);
|
xfree (bpt->source_file);
|
if (bpt->exec_pathname != NULL)
|
if (bpt->exec_pathname != NULL)
|
xfree (bpt->exec_pathname);
|
xfree (bpt->exec_pathname);
|
clean_up_filters (&bpt->syscalls_to_be_caught);
|
clean_up_filters (&bpt->syscalls_to_be_caught);
|
|
|
/* Be sure no bpstat's are pointing at it after it's been freed. */
|
/* Be sure no bpstat's are pointing at it after it's been freed. */
|
/* FIXME, how can we find all bpstat's?
|
/* FIXME, how can we find all bpstat's?
|
We just check stop_bpstat for now. Note that we cannot just
|
We just check stop_bpstat for now. Note that we cannot just
|
remove bpstats pointing at bpt from the stop_bpstat list
|
remove bpstats pointing at bpt from the stop_bpstat list
|
entirely, as breakpoint commands are associated with the bpstat;
|
entirely, as breakpoint commands are associated with the bpstat;
|
if we remove it here, then the later call to
|
if we remove it here, then the later call to
|
bpstat_do_actions (&stop_bpstat);
|
bpstat_do_actions (&stop_bpstat);
|
in event-top.c won't do anything, and temporary breakpoints
|
in event-top.c won't do anything, and temporary breakpoints
|
with commands won't work. */
|
with commands won't work. */
|
|
|
iterate_over_threads (bpstat_remove_breakpoint_callback, bpt);
|
iterate_over_threads (bpstat_remove_breakpoint_callback, bpt);
|
|
|
/* Now that breakpoint is removed from breakpoint
|
/* Now that breakpoint is removed from breakpoint
|
list, update the global location list. This
|
list, update the global location list. This
|
will remove locations that used to belong to
|
will remove locations that used to belong to
|
this breakpoint. Do this before freeing
|
this breakpoint. Do this before freeing
|
the breakpoint itself, since remove_breakpoint
|
the breakpoint itself, since remove_breakpoint
|
looks at location's owner. It might be better
|
looks at location's owner. It might be better
|
design to have location completely self-contained,
|
design to have location completely self-contained,
|
but it's not the case now. */
|
but it's not the case now. */
|
update_global_location_list (0);
|
update_global_location_list (0);
|
|
|
|
|
/* On the chance that someone will soon try again to delete this same
|
/* On the chance that someone will soon try again to delete this same
|
bp, we mark it as deleted before freeing its storage. */
|
bp, we mark it as deleted before freeing its storage. */
|
bpt->type = bp_none;
|
bpt->type = bp_none;
|
|
|
xfree (bpt);
|
xfree (bpt);
|
}
|
}
|
|
|
static void
|
static void
|
do_delete_breakpoint_cleanup (void *b)
|
do_delete_breakpoint_cleanup (void *b)
|
{
|
{
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
}
|
}
|
|
|
struct cleanup *
|
struct cleanup *
|
make_cleanup_delete_breakpoint (struct breakpoint *b)
|
make_cleanup_delete_breakpoint (struct breakpoint *b)
|
{
|
{
|
return make_cleanup (do_delete_breakpoint_cleanup, b);
|
return make_cleanup (do_delete_breakpoint_cleanup, b);
|
}
|
}
|
|
|
void
|
void
|
delete_command (char *arg, int from_tty)
|
delete_command (char *arg, int from_tty)
|
{
|
{
|
struct breakpoint *b, *temp;
|
struct breakpoint *b, *temp;
|
|
|
dont_repeat ();
|
dont_repeat ();
|
|
|
if (arg == 0)
|
if (arg == 0)
|
{
|
{
|
int breaks_to_delete = 0;
|
int breaks_to_delete = 0;
|
|
|
/* Delete all breakpoints if no argument.
|
/* Delete all breakpoints if no argument.
|
Do not delete internal or call-dummy breakpoints, these
|
Do not delete internal or call-dummy breakpoints, these
|
have to be deleted with an explicit breakpoint number argument. */
|
have to be deleted with an explicit breakpoint number argument. */
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
{
|
{
|
if (b->type != bp_call_dummy
|
if (b->type != bp_call_dummy
|
&& b->type != bp_shlib_event
|
&& b->type != bp_shlib_event
|
&& b->type != bp_jit_event
|
&& b->type != bp_jit_event
|
&& b->type != bp_thread_event
|
&& b->type != bp_thread_event
|
&& b->type != bp_overlay_event
|
&& b->type != bp_overlay_event
|
&& b->type != bp_longjmp_master
|
&& b->type != bp_longjmp_master
|
&& b->number >= 0)
|
&& b->number >= 0)
|
{
|
{
|
breaks_to_delete = 1;
|
breaks_to_delete = 1;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Ask user only if there are some breakpoints to delete. */
|
/* Ask user only if there are some breakpoints to delete. */
|
if (!from_tty
|
if (!from_tty
|
|| (breaks_to_delete && query (_("Delete all breakpoints? "))))
|
|| (breaks_to_delete && query (_("Delete all breakpoints? "))))
|
{
|
{
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
{
|
{
|
if (b->type != bp_call_dummy
|
if (b->type != bp_call_dummy
|
&& b->type != bp_shlib_event
|
&& b->type != bp_shlib_event
|
&& b->type != bp_thread_event
|
&& b->type != bp_thread_event
|
&& b->type != bp_jit_event
|
&& b->type != bp_jit_event
|
&& b->type != bp_overlay_event
|
&& b->type != bp_overlay_event
|
&& b->type != bp_longjmp_master
|
&& b->type != bp_longjmp_master
|
&& b->number >= 0)
|
&& b->number >= 0)
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
}
|
}
|
}
|
}
|
}
|
}
|
else
|
else
|
map_breakpoint_numbers (arg, delete_breakpoint);
|
map_breakpoint_numbers (arg, delete_breakpoint);
|
}
|
}
|
|
|
static int
|
static int
|
all_locations_are_pending (struct bp_location *loc)
|
all_locations_are_pending (struct bp_location *loc)
|
{
|
{
|
for (; loc; loc = loc->next)
|
for (; loc; loc = loc->next)
|
if (!loc->shlib_disabled)
|
if (!loc->shlib_disabled)
|
return 0;
|
return 0;
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* Subroutine of update_breakpoint_locations to simplify it.
|
/* Subroutine of update_breakpoint_locations to simplify it.
|
Return non-zero if multiple fns in list LOC have the same name.
|
Return non-zero if multiple fns in list LOC have the same name.
|
Null names are ignored. */
|
Null names are ignored. */
|
|
|
static int
|
static int
|
ambiguous_names_p (struct bp_location *loc)
|
ambiguous_names_p (struct bp_location *loc)
|
{
|
{
|
struct bp_location *l;
|
struct bp_location *l;
|
htab_t htab = htab_create_alloc (13, htab_hash_string,
|
htab_t htab = htab_create_alloc (13, htab_hash_string,
|
(int (*) (const void *, const void *)) streq,
|
(int (*) (const void *, const void *)) streq,
|
NULL, xcalloc, xfree);
|
NULL, xcalloc, xfree);
|
|
|
for (l = loc; l != NULL; l = l->next)
|
for (l = loc; l != NULL; l = l->next)
|
{
|
{
|
const char **slot;
|
const char **slot;
|
const char *name = l->function_name;
|
const char *name = l->function_name;
|
|
|
/* Allow for some names to be NULL, ignore them. */
|
/* Allow for some names to be NULL, ignore them. */
|
if (name == NULL)
|
if (name == NULL)
|
continue;
|
continue;
|
|
|
slot = (const char **) htab_find_slot (htab, (const void *) name,
|
slot = (const char **) htab_find_slot (htab, (const void *) name,
|
INSERT);
|
INSERT);
|
/* NOTE: We can assume slot != NULL here because xcalloc never returns
|
/* NOTE: We can assume slot != NULL here because xcalloc never returns
|
NULL. */
|
NULL. */
|
if (*slot != NULL)
|
if (*slot != NULL)
|
{
|
{
|
htab_delete (htab);
|
htab_delete (htab);
|
return 1;
|
return 1;
|
}
|
}
|
*slot = name;
|
*slot = name;
|
}
|
}
|
|
|
htab_delete (htab);
|
htab_delete (htab);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static void
|
static void
|
update_breakpoint_locations (struct breakpoint *b,
|
update_breakpoint_locations (struct breakpoint *b,
|
struct symtabs_and_lines sals)
|
struct symtabs_and_lines sals)
|
{
|
{
|
int i;
|
int i;
|
char *s;
|
char *s;
|
struct bp_location *existing_locations = b->loc;
|
struct bp_location *existing_locations = b->loc;
|
|
|
/* If there's no new locations, and all existing locations
|
/* If there's no new locations, and all existing locations
|
are pending, don't do anything. This optimizes
|
are pending, don't do anything. This optimizes
|
the common case where all locations are in the same
|
the common case where all locations are in the same
|
shared library, that was unloaded. We'd like to
|
shared library, that was unloaded. We'd like to
|
retain the location, so that when the library
|
retain the location, so that when the library
|
is loaded again, we don't loose the enabled/disabled
|
is loaded again, we don't loose the enabled/disabled
|
status of the individual locations. */
|
status of the individual locations. */
|
if (all_locations_are_pending (existing_locations) && sals.nelts == 0)
|
if (all_locations_are_pending (existing_locations) && sals.nelts == 0)
|
return;
|
return;
|
|
|
b->loc = NULL;
|
b->loc = NULL;
|
|
|
for (i = 0; i < sals.nelts; ++i)
|
for (i = 0; i < sals.nelts; ++i)
|
{
|
{
|
struct bp_location *new_loc =
|
struct bp_location *new_loc =
|
add_location_to_breakpoint (b, &(sals.sals[i]));
|
add_location_to_breakpoint (b, &(sals.sals[i]));
|
|
|
/* Reparse conditions, they might contain references to the
|
/* Reparse conditions, they might contain references to the
|
old symtab. */
|
old symtab. */
|
if (b->cond_string != NULL)
|
if (b->cond_string != NULL)
|
{
|
{
|
struct gdb_exception e;
|
struct gdb_exception e;
|
|
|
s = b->cond_string;
|
s = b->cond_string;
|
TRY_CATCH (e, RETURN_MASK_ERROR)
|
TRY_CATCH (e, RETURN_MASK_ERROR)
|
{
|
{
|
new_loc->cond = parse_exp_1 (&s, block_for_pc (sals.sals[i].pc),
|
new_loc->cond = parse_exp_1 (&s, block_for_pc (sals.sals[i].pc),
|
0);
|
0);
|
}
|
}
|
if (e.reason < 0)
|
if (e.reason < 0)
|
{
|
{
|
warning (_("failed to reevaluate condition for breakpoint %d: %s"),
|
warning (_("failed to reevaluate condition for breakpoint %d: %s"),
|
b->number, e.message);
|
b->number, e.message);
|
new_loc->enabled = 0;
|
new_loc->enabled = 0;
|
}
|
}
|
}
|
}
|
|
|
if (b->source_file != NULL)
|
if (b->source_file != NULL)
|
xfree (b->source_file);
|
xfree (b->source_file);
|
if (sals.sals[i].symtab == NULL)
|
if (sals.sals[i].symtab == NULL)
|
b->source_file = NULL;
|
b->source_file = NULL;
|
else
|
else
|
b->source_file = xstrdup (sals.sals[i].symtab->filename);
|
b->source_file = xstrdup (sals.sals[i].symtab->filename);
|
|
|
if (b->line_number == 0)
|
if (b->line_number == 0)
|
b->line_number = sals.sals[i].line;
|
b->line_number = sals.sals[i].line;
|
}
|
}
|
|
|
/* Update locations of permanent breakpoints. */
|
/* Update locations of permanent breakpoints. */
|
if (b->enable_state == bp_permanent)
|
if (b->enable_state == bp_permanent)
|
make_breakpoint_permanent (b);
|
make_breakpoint_permanent (b);
|
|
|
/* If possible, carry over 'disable' status from existing breakpoints. */
|
/* If possible, carry over 'disable' status from existing breakpoints. */
|
{
|
{
|
struct bp_location *e = existing_locations;
|
struct bp_location *e = existing_locations;
|
/* If there are multiple breakpoints with the same function name,
|
/* If there are multiple breakpoints with the same function name,
|
e.g. for inline functions, comparing function names won't work.
|
e.g. for inline functions, comparing function names won't work.
|
Instead compare pc addresses; this is just a heuristic as things
|
Instead compare pc addresses; this is just a heuristic as things
|
may have moved, but in practice it gives the correct answer
|
may have moved, but in practice it gives the correct answer
|
often enough until a better solution is found. */
|
often enough until a better solution is found. */
|
int have_ambiguous_names = ambiguous_names_p (b->loc);
|
int have_ambiguous_names = ambiguous_names_p (b->loc);
|
|
|
for (; e; e = e->next)
|
for (; e; e = e->next)
|
{
|
{
|
if (!e->enabled && e->function_name)
|
if (!e->enabled && e->function_name)
|
{
|
{
|
struct bp_location *l = b->loc;
|
struct bp_location *l = b->loc;
|
if (have_ambiguous_names)
|
if (have_ambiguous_names)
|
{
|
{
|
for (; l; l = l->next)
|
for (; l; l = l->next)
|
if (breakpoint_address_match (e->pspace->aspace, e->address,
|
if (breakpoint_address_match (e->pspace->aspace, e->address,
|
l->pspace->aspace, l->address))
|
l->pspace->aspace, l->address))
|
{
|
{
|
l->enabled = 0;
|
l->enabled = 0;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
for (; l; l = l->next)
|
for (; l; l = l->next)
|
if (l->function_name
|
if (l->function_name
|
&& strcmp (e->function_name, l->function_name) == 0)
|
&& strcmp (e->function_name, l->function_name) == 0)
|
{
|
{
|
l->enabled = 0;
|
l->enabled = 0;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
update_global_location_list (1);
|
update_global_location_list (1);
|
}
|
}
|
|
|
|
|
/* Reset a breakpoint given it's struct breakpoint * BINT.
|
/* Reset a breakpoint given it's struct breakpoint * BINT.
|
The value we return ends up being the return value from catch_errors.
|
The value we return ends up being the return value from catch_errors.
|
Unused in this case. */
|
Unused in this case. */
|
|
|
static int
|
static int
|
breakpoint_re_set_one (void *bint)
|
breakpoint_re_set_one (void *bint)
|
{
|
{
|
/* get past catch_errs */
|
/* get past catch_errs */
|
struct breakpoint *b = (struct breakpoint *) bint;
|
struct breakpoint *b = (struct breakpoint *) bint;
|
struct value *mark;
|
struct value *mark;
|
int i;
|
int i;
|
int not_found = 0;
|
int not_found = 0;
|
int *not_found_ptr = ¬_found;
|
int *not_found_ptr = ¬_found;
|
struct symtabs_and_lines sals = {0};
|
struct symtabs_and_lines sals = {0};
|
struct symtabs_and_lines expanded = {0};
|
struct symtabs_and_lines expanded = {0};
|
char *s;
|
char *s;
|
enum enable_state save_enable;
|
enum enable_state save_enable;
|
struct gdb_exception e;
|
struct gdb_exception e;
|
struct cleanup *cleanups = make_cleanup (null_cleanup, NULL);
|
struct cleanup *cleanups = make_cleanup (null_cleanup, NULL);
|
|
|
switch (b->type)
|
switch (b->type)
|
{
|
{
|
case bp_none:
|
case bp_none:
|
warning (_("attempted to reset apparently deleted breakpoint #%d?"),
|
warning (_("attempted to reset apparently deleted breakpoint #%d?"),
|
b->number);
|
b->number);
|
return 0;
|
return 0;
|
case bp_breakpoint:
|
case bp_breakpoint:
|
case bp_hardware_breakpoint:
|
case bp_hardware_breakpoint:
|
case bp_tracepoint:
|
case bp_tracepoint:
|
case bp_fast_tracepoint:
|
case bp_fast_tracepoint:
|
/* Do not attempt to re-set breakpoints disabled during startup. */
|
/* Do not attempt to re-set breakpoints disabled during startup. */
|
if (b->enable_state == bp_startup_disabled)
|
if (b->enable_state == bp_startup_disabled)
|
return 0;
|
return 0;
|
|
|
if (b->addr_string == NULL)
|
if (b->addr_string == NULL)
|
{
|
{
|
/* Anything without a string can't be re-set. */
|
/* Anything without a string can't be re-set. */
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
set_language (b->language);
|
set_language (b->language);
|
input_radix = b->input_radix;
|
input_radix = b->input_radix;
|
s = b->addr_string;
|
s = b->addr_string;
|
|
|
save_current_space_and_thread ();
|
save_current_space_and_thread ();
|
switch_to_program_space_and_thread (b->pspace);
|
switch_to_program_space_and_thread (b->pspace);
|
|
|
TRY_CATCH (e, RETURN_MASK_ERROR)
|
TRY_CATCH (e, RETURN_MASK_ERROR)
|
{
|
{
|
sals = decode_line_1 (&s, 1, (struct symtab *) NULL, 0, (char ***) NULL,
|
sals = decode_line_1 (&s, 1, (struct symtab *) NULL, 0, (char ***) NULL,
|
not_found_ptr);
|
not_found_ptr);
|
}
|
}
|
if (e.reason < 0)
|
if (e.reason < 0)
|
{
|
{
|
int not_found_and_ok = 0;
|
int not_found_and_ok = 0;
|
/* For pending breakpoints, it's expected that parsing
|
/* For pending breakpoints, it's expected that parsing
|
will fail until the right shared library is loaded.
|
will fail until the right shared library is loaded.
|
User has already told to create pending breakpoints and
|
User has already told to create pending breakpoints and
|
don't need extra messages. If breakpoint is in bp_shlib_disabled
|
don't need extra messages. If breakpoint is in bp_shlib_disabled
|
state, then user already saw the message about that breakpoint
|
state, then user already saw the message about that breakpoint
|
being disabled, and don't want to see more errors. */
|
being disabled, and don't want to see more errors. */
|
if (not_found
|
if (not_found
|
&& (b->condition_not_parsed
|
&& (b->condition_not_parsed
|
|| (b->loc && b->loc->shlib_disabled)
|
|| (b->loc && b->loc->shlib_disabled)
|
|| b->enable_state == bp_disabled))
|
|| b->enable_state == bp_disabled))
|
not_found_and_ok = 1;
|
not_found_and_ok = 1;
|
|
|
if (!not_found_and_ok)
|
if (!not_found_and_ok)
|
{
|
{
|
/* We surely don't want to warn about the same breakpoint
|
/* We surely don't want to warn about the same breakpoint
|
10 times. One solution, implemented here, is disable
|
10 times. One solution, implemented here, is disable
|
the breakpoint on error. Another solution would be to
|
the breakpoint on error. Another solution would be to
|
have separate 'warning emitted' flag. Since this
|
have separate 'warning emitted' flag. Since this
|
happens only when a binary has changed, I don't know
|
happens only when a binary has changed, I don't know
|
which approach is better. */
|
which approach is better. */
|
b->enable_state = bp_disabled;
|
b->enable_state = bp_disabled;
|
throw_exception (e);
|
throw_exception (e);
|
}
|
}
|
}
|
}
|
|
|
if (!not_found)
|
if (!not_found)
|
{
|
{
|
gdb_assert (sals.nelts == 1);
|
gdb_assert (sals.nelts == 1);
|
|
|
resolve_sal_pc (&sals.sals[0]);
|
resolve_sal_pc (&sals.sals[0]);
|
if (b->condition_not_parsed && s && s[0])
|
if (b->condition_not_parsed && s && s[0])
|
{
|
{
|
char *cond_string = 0;
|
char *cond_string = 0;
|
int thread = -1;
|
int thread = -1;
|
int task = 0;
|
int task = 0;
|
|
|
find_condition_and_thread (s, sals.sals[0].pc,
|
find_condition_and_thread (s, sals.sals[0].pc,
|
&cond_string, &thread, &task);
|
&cond_string, &thread, &task);
|
if (cond_string)
|
if (cond_string)
|
b->cond_string = cond_string;
|
b->cond_string = cond_string;
|
b->thread = thread;
|
b->thread = thread;
|
b->task = task;
|
b->task = task;
|
b->condition_not_parsed = 0;
|
b->condition_not_parsed = 0;
|
}
|
}
|
|
|
expanded = expand_line_sal_maybe (sals.sals[0]);
|
expanded = expand_line_sal_maybe (sals.sals[0]);
|
}
|
}
|
|
|
make_cleanup (xfree, sals.sals);
|
make_cleanup (xfree, sals.sals);
|
update_breakpoint_locations (b, expanded);
|
update_breakpoint_locations (b, expanded);
|
break;
|
break;
|
|
|
case bp_watchpoint:
|
case bp_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_read_watchpoint:
|
case bp_read_watchpoint:
|
case bp_access_watchpoint:
|
case bp_access_watchpoint:
|
/* Watchpoint can be either on expression using entirely global variables,
|
/* Watchpoint can be either on expression using entirely global variables,
|
or it can be on local variables.
|
or it can be on local variables.
|
|
|
Watchpoints of the first kind are never auto-deleted, and even persist
|
Watchpoints of the first kind are never auto-deleted, and even persist
|
across program restarts. Since they can use variables from shared
|
across program restarts. Since they can use variables from shared
|
libraries, we need to reparse expression as libraries are loaded
|
libraries, we need to reparse expression as libraries are loaded
|
and unloaded.
|
and unloaded.
|
|
|
Watchpoints on local variables can also change meaning as result
|
Watchpoints on local variables can also change meaning as result
|
of solib event. For example, if a watchpoint uses both a local and
|
of solib event. For example, if a watchpoint uses both a local and
|
a global variables in expression, it's a local watchpoint, but
|
a global variables in expression, it's a local watchpoint, but
|
unloading of a shared library will make the expression invalid.
|
unloading of a shared library will make the expression invalid.
|
This is not a very common use case, but we still re-evaluate
|
This is not a very common use case, but we still re-evaluate
|
expression, to avoid surprises to the user.
|
expression, to avoid surprises to the user.
|
|
|
Note that for local watchpoints, we re-evaluate it only if
|
Note that for local watchpoints, we re-evaluate it only if
|
watchpoints frame id is still valid. If it's not, it means
|
watchpoints frame id is still valid. If it's not, it means
|
the watchpoint is out of scope and will be deleted soon. In fact,
|
the watchpoint is out of scope and will be deleted soon. In fact,
|
I'm not sure we'll ever be called in this case.
|
I'm not sure we'll ever be called in this case.
|
|
|
If a local watchpoint's frame id is still valid, then
|
If a local watchpoint's frame id is still valid, then
|
b->exp_valid_block is likewise valid, and we can safely use it.
|
b->exp_valid_block is likewise valid, and we can safely use it.
|
|
|
Don't do anything about disabled watchpoints, since they will
|
Don't do anything about disabled watchpoints, since they will
|
be reevaluated again when enabled. */
|
be reevaluated again when enabled. */
|
update_watchpoint (b, 1 /* reparse */);
|
update_watchpoint (b, 1 /* reparse */);
|
break;
|
break;
|
/* We needn't really do anything to reset these, since the mask
|
/* We needn't really do anything to reset these, since the mask
|
that requests them is unaffected by e.g., new libraries being
|
that requests them is unaffected by e.g., new libraries being
|
loaded. */
|
loaded. */
|
case bp_catchpoint:
|
case bp_catchpoint:
|
break;
|
break;
|
|
|
default:
|
default:
|
printf_filtered (_("Deleting unknown breakpoint type %d\n"), b->type);
|
printf_filtered (_("Deleting unknown breakpoint type %d\n"), b->type);
|
/* fall through */
|
/* fall through */
|
/* Delete overlay event and longjmp master breakpoints; they will be
|
/* Delete overlay event and longjmp master breakpoints; they will be
|
reset later by breakpoint_re_set. */
|
reset later by breakpoint_re_set. */
|
case bp_overlay_event:
|
case bp_overlay_event:
|
case bp_longjmp_master:
|
case bp_longjmp_master:
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
break;
|
break;
|
|
|
/* This breakpoint is special, it's set up when the inferior
|
/* This breakpoint is special, it's set up when the inferior
|
starts and we really don't want to touch it. */
|
starts and we really don't want to touch it. */
|
case bp_shlib_event:
|
case bp_shlib_event:
|
|
|
/* Like bp_shlib_event, this breakpoint type is special.
|
/* Like bp_shlib_event, this breakpoint type is special.
|
Once it is set up, we do not want to touch it. */
|
Once it is set up, we do not want to touch it. */
|
case bp_thread_event:
|
case bp_thread_event:
|
|
|
/* Keep temporary breakpoints, which can be encountered when we step
|
/* Keep temporary breakpoints, which can be encountered when we step
|
over a dlopen call and SOLIB_ADD is resetting the breakpoints.
|
over a dlopen call and SOLIB_ADD is resetting the breakpoints.
|
Otherwise these should have been blown away via the cleanup chain
|
Otherwise these should have been blown away via the cleanup chain
|
or by breakpoint_init_inferior when we rerun the executable. */
|
or by breakpoint_init_inferior when we rerun the executable. */
|
case bp_until:
|
case bp_until:
|
case bp_finish:
|
case bp_finish:
|
case bp_watchpoint_scope:
|
case bp_watchpoint_scope:
|
case bp_call_dummy:
|
case bp_call_dummy:
|
case bp_step_resume:
|
case bp_step_resume:
|
case bp_longjmp:
|
case bp_longjmp:
|
case bp_longjmp_resume:
|
case bp_longjmp_resume:
|
case bp_jit_event:
|
case bp_jit_event:
|
break;
|
break;
|
}
|
}
|
|
|
do_cleanups (cleanups);
|
do_cleanups (cleanups);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Re-set all breakpoints after symbols have been re-loaded. */
|
/* Re-set all breakpoints after symbols have been re-loaded. */
|
void
|
void
|
breakpoint_re_set (void)
|
breakpoint_re_set (void)
|
{
|
{
|
struct breakpoint *b, *temp;
|
struct breakpoint *b, *temp;
|
enum language save_language;
|
enum language save_language;
|
int save_input_radix;
|
int save_input_radix;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
|
|
save_language = current_language->la_language;
|
save_language = current_language->la_language;
|
save_input_radix = input_radix;
|
save_input_radix = input_radix;
|
old_chain = save_current_program_space ();
|
old_chain = save_current_program_space ();
|
|
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
{
|
{
|
/* Format possible error msg */
|
/* Format possible error msg */
|
char *message = xstrprintf ("Error in re-setting breakpoint %d: ",
|
char *message = xstrprintf ("Error in re-setting breakpoint %d: ",
|
b->number);
|
b->number);
|
struct cleanup *cleanups = make_cleanup (xfree, message);
|
struct cleanup *cleanups = make_cleanup (xfree, message);
|
catch_errors (breakpoint_re_set_one, b, message, RETURN_MASK_ALL);
|
catch_errors (breakpoint_re_set_one, b, message, RETURN_MASK_ALL);
|
do_cleanups (cleanups);
|
do_cleanups (cleanups);
|
}
|
}
|
set_language (save_language);
|
set_language (save_language);
|
input_radix = save_input_radix;
|
input_radix = save_input_radix;
|
|
|
jit_breakpoint_re_set ();
|
jit_breakpoint_re_set ();
|
|
|
do_cleanups (old_chain);
|
do_cleanups (old_chain);
|
|
|
create_overlay_event_breakpoint ("_ovly_debug_event");
|
create_overlay_event_breakpoint ("_ovly_debug_event");
|
create_longjmp_master_breakpoint ("longjmp");
|
create_longjmp_master_breakpoint ("longjmp");
|
create_longjmp_master_breakpoint ("_longjmp");
|
create_longjmp_master_breakpoint ("_longjmp");
|
create_longjmp_master_breakpoint ("siglongjmp");
|
create_longjmp_master_breakpoint ("siglongjmp");
|
create_longjmp_master_breakpoint ("_siglongjmp");
|
create_longjmp_master_breakpoint ("_siglongjmp");
|
}
|
}
|
|
|
/* Reset the thread number of this breakpoint:
|
/* Reset the thread number of this breakpoint:
|
|
|
- If the breakpoint is for all threads, leave it as-is.
|
- If the breakpoint is for all threads, leave it as-is.
|
- Else, reset it to the current thread for inferior_ptid. */
|
- Else, reset it to the current thread for inferior_ptid. */
|
void
|
void
|
breakpoint_re_set_thread (struct breakpoint *b)
|
breakpoint_re_set_thread (struct breakpoint *b)
|
{
|
{
|
if (b->thread != -1)
|
if (b->thread != -1)
|
{
|
{
|
if (in_thread_list (inferior_ptid))
|
if (in_thread_list (inferior_ptid))
|
b->thread = pid_to_thread_id (inferior_ptid);
|
b->thread = pid_to_thread_id (inferior_ptid);
|
|
|
/* We're being called after following a fork. The new fork is
|
/* We're being called after following a fork. The new fork is
|
selected as current, and unless this was a vfork will have a
|
selected as current, and unless this was a vfork will have a
|
different program space from the original thread. Reset that
|
different program space from the original thread. Reset that
|
as well. */
|
as well. */
|
b->loc->pspace = current_program_space;
|
b->loc->pspace = current_program_space;
|
}
|
}
|
}
|
}
|
|
|
/* Set ignore-count of breakpoint number BPTNUM to COUNT.
|
/* Set ignore-count of breakpoint number BPTNUM to COUNT.
|
If from_tty is nonzero, it prints a message to that effect,
|
If from_tty is nonzero, it prints a message to that effect,
|
which ends with a period (no newline). */
|
which ends with a period (no newline). */
|
|
|
void
|
void
|
set_ignore_count (int bptnum, int count, int from_tty)
|
set_ignore_count (int bptnum, int count, int from_tty)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
|
|
if (count < 0)
|
if (count < 0)
|
count = 0;
|
count = 0;
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->number == bptnum)
|
if (b->number == bptnum)
|
{
|
{
|
b->ignore_count = count;
|
b->ignore_count = count;
|
if (from_tty)
|
if (from_tty)
|
{
|
{
|
if (count == 0)
|
if (count == 0)
|
printf_filtered (_("Will stop next time breakpoint %d is reached."),
|
printf_filtered (_("Will stop next time breakpoint %d is reached."),
|
bptnum);
|
bptnum);
|
else if (count == 1)
|
else if (count == 1)
|
printf_filtered (_("Will ignore next crossing of breakpoint %d."),
|
printf_filtered (_("Will ignore next crossing of breakpoint %d."),
|
bptnum);
|
bptnum);
|
else
|
else
|
printf_filtered (_("Will ignore next %d crossings of breakpoint %d."),
|
printf_filtered (_("Will ignore next %d crossings of breakpoint %d."),
|
count, bptnum);
|
count, bptnum);
|
}
|
}
|
breakpoints_changed ();
|
breakpoints_changed ();
|
observer_notify_breakpoint_modified (b->number);
|
observer_notify_breakpoint_modified (b->number);
|
return;
|
return;
|
}
|
}
|
|
|
error (_("No breakpoint number %d."), bptnum);
|
error (_("No breakpoint number %d."), bptnum);
|
}
|
}
|
|
|
void
|
void
|
make_breakpoint_silent (struct breakpoint *b)
|
make_breakpoint_silent (struct breakpoint *b)
|
{
|
{
|
/* Silence the breakpoint. */
|
/* Silence the breakpoint. */
|
b->silent = 1;
|
b->silent = 1;
|
}
|
}
|
|
|
/* Command to set ignore-count of breakpoint N to COUNT. */
|
/* Command to set ignore-count of breakpoint N to COUNT. */
|
|
|
static void
|
static void
|
ignore_command (char *args, int from_tty)
|
ignore_command (char *args, int from_tty)
|
{
|
{
|
char *p = args;
|
char *p = args;
|
int num;
|
int num;
|
|
|
if (p == 0)
|
if (p == 0)
|
error_no_arg (_("a breakpoint number"));
|
error_no_arg (_("a breakpoint number"));
|
|
|
num = get_number (&p);
|
num = get_number (&p);
|
if (num == 0)
|
if (num == 0)
|
error (_("bad breakpoint number: '%s'"), args);
|
error (_("bad breakpoint number: '%s'"), args);
|
if (*p == 0)
|
if (*p == 0)
|
error (_("Second argument (specified ignore-count) is missing."));
|
error (_("Second argument (specified ignore-count) is missing."));
|
|
|
set_ignore_count (num,
|
set_ignore_count (num,
|
longest_to_int (value_as_long (parse_and_eval (p))),
|
longest_to_int (value_as_long (parse_and_eval (p))),
|
from_tty);
|
from_tty);
|
if (from_tty)
|
if (from_tty)
|
printf_filtered ("\n");
|
printf_filtered ("\n");
|
}
|
}
|
|
|
/* Call FUNCTION on each of the breakpoints
|
/* Call FUNCTION on each of the breakpoints
|
whose numbers are given in ARGS. */
|
whose numbers are given in ARGS. */
|
|
|
static void
|
static void
|
map_breakpoint_numbers (char *args, void (*function) (struct breakpoint *))
|
map_breakpoint_numbers (char *args, void (*function) (struct breakpoint *))
|
{
|
{
|
char *p = args;
|
char *p = args;
|
char *p1;
|
char *p1;
|
int num;
|
int num;
|
struct breakpoint *b, *tmp;
|
struct breakpoint *b, *tmp;
|
int match;
|
int match;
|
|
|
if (p == 0)
|
if (p == 0)
|
error_no_arg (_("one or more breakpoint numbers"));
|
error_no_arg (_("one or more breakpoint numbers"));
|
|
|
while (*p)
|
while (*p)
|
{
|
{
|
match = 0;
|
match = 0;
|
p1 = p;
|
p1 = p;
|
|
|
num = get_number_or_range (&p1);
|
num = get_number_or_range (&p1);
|
if (num == 0)
|
if (num == 0)
|
{
|
{
|
warning (_("bad breakpoint number at or near '%s'"), p);
|
warning (_("bad breakpoint number at or near '%s'"), p);
|
}
|
}
|
else
|
else
|
{
|
{
|
ALL_BREAKPOINTS_SAFE (b, tmp)
|
ALL_BREAKPOINTS_SAFE (b, tmp)
|
if (b->number == num)
|
if (b->number == num)
|
{
|
{
|
struct breakpoint *related_breakpoint = b->related_breakpoint;
|
struct breakpoint *related_breakpoint = b->related_breakpoint;
|
match = 1;
|
match = 1;
|
function (b);
|
function (b);
|
if (related_breakpoint)
|
if (related_breakpoint)
|
function (related_breakpoint);
|
function (related_breakpoint);
|
break;
|
break;
|
}
|
}
|
if (match == 0)
|
if (match == 0)
|
printf_unfiltered (_("No breakpoint number %d.\n"), num);
|
printf_unfiltered (_("No breakpoint number %d.\n"), num);
|
}
|
}
|
p = p1;
|
p = p1;
|
}
|
}
|
}
|
}
|
|
|
static struct bp_location *
|
static struct bp_location *
|
find_location_by_number (char *number)
|
find_location_by_number (char *number)
|
{
|
{
|
char *dot = strchr (number, '.');
|
char *dot = strchr (number, '.');
|
char *p1;
|
char *p1;
|
int bp_num;
|
int bp_num;
|
int loc_num;
|
int loc_num;
|
struct breakpoint *b;
|
struct breakpoint *b;
|
struct bp_location *loc;
|
struct bp_location *loc;
|
|
|
*dot = '\0';
|
*dot = '\0';
|
|
|
p1 = number;
|
p1 = number;
|
bp_num = get_number_or_range (&p1);
|
bp_num = get_number_or_range (&p1);
|
if (bp_num == 0)
|
if (bp_num == 0)
|
error (_("Bad breakpoint number '%s'"), number);
|
error (_("Bad breakpoint number '%s'"), number);
|
|
|
ALL_BREAKPOINTS (b)
|
ALL_BREAKPOINTS (b)
|
if (b->number == bp_num)
|
if (b->number == bp_num)
|
{
|
{
|
break;
|
break;
|
}
|
}
|
|
|
if (!b || b->number != bp_num)
|
if (!b || b->number != bp_num)
|
error (_("Bad breakpoint number '%s'"), number);
|
error (_("Bad breakpoint number '%s'"), number);
|
|
|
p1 = dot+1;
|
p1 = dot+1;
|
loc_num = get_number_or_range (&p1);
|
loc_num = get_number_or_range (&p1);
|
if (loc_num == 0)
|
if (loc_num == 0)
|
error (_("Bad breakpoint location number '%s'"), number);
|
error (_("Bad breakpoint location number '%s'"), number);
|
|
|
--loc_num;
|
--loc_num;
|
loc = b->loc;
|
loc = b->loc;
|
for (;loc_num && loc; --loc_num, loc = loc->next)
|
for (;loc_num && loc; --loc_num, loc = loc->next)
|
;
|
;
|
if (!loc)
|
if (!loc)
|
error (_("Bad breakpoint location number '%s'"), dot+1);
|
error (_("Bad breakpoint location number '%s'"), dot+1);
|
|
|
return loc;
|
return loc;
|
}
|
}
|
|
|
|
|
/* Set ignore-count of breakpoint number BPTNUM to COUNT.
|
/* Set ignore-count of breakpoint number BPTNUM to COUNT.
|
If from_tty is nonzero, it prints a message to that effect,
|
If from_tty is nonzero, it prints a message to that effect,
|
which ends with a period (no newline). */
|
which ends with a period (no newline). */
|
|
|
void
|
void
|
disable_breakpoint (struct breakpoint *bpt)
|
disable_breakpoint (struct breakpoint *bpt)
|
{
|
{
|
/* Never disable a watchpoint scope breakpoint; we want to
|
/* Never disable a watchpoint scope breakpoint; we want to
|
hit them when we leave scope so we can delete both the
|
hit them when we leave scope so we can delete both the
|
watchpoint and its scope breakpoint at that time. */
|
watchpoint and its scope breakpoint at that time. */
|
if (bpt->type == bp_watchpoint_scope)
|
if (bpt->type == bp_watchpoint_scope)
|
return;
|
return;
|
|
|
/* You can't disable permanent breakpoints. */
|
/* You can't disable permanent breakpoints. */
|
if (bpt->enable_state == bp_permanent)
|
if (bpt->enable_state == bp_permanent)
|
return;
|
return;
|
|
|
bpt->enable_state = bp_disabled;
|
bpt->enable_state = bp_disabled;
|
|
|
update_global_location_list (0);
|
update_global_location_list (0);
|
|
|
observer_notify_breakpoint_modified (bpt->number);
|
observer_notify_breakpoint_modified (bpt->number);
|
}
|
}
|
|
|
static void
|
static void
|
disable_command (char *args, int from_tty)
|
disable_command (char *args, int from_tty)
|
{
|
{
|
struct breakpoint *bpt;
|
struct breakpoint *bpt;
|
if (args == 0)
|
if (args == 0)
|
ALL_BREAKPOINTS (bpt)
|
ALL_BREAKPOINTS (bpt)
|
switch (bpt->type)
|
switch (bpt->type)
|
{
|
{
|
case bp_none:
|
case bp_none:
|
warning (_("attempted to disable apparently deleted breakpoint #%d?"),
|
warning (_("attempted to disable apparently deleted breakpoint #%d?"),
|
bpt->number);
|
bpt->number);
|
continue;
|
continue;
|
case bp_breakpoint:
|
case bp_breakpoint:
|
case bp_tracepoint:
|
case bp_tracepoint:
|
case bp_fast_tracepoint:
|
case bp_fast_tracepoint:
|
case bp_catchpoint:
|
case bp_catchpoint:
|
case bp_hardware_breakpoint:
|
case bp_hardware_breakpoint:
|
case bp_watchpoint:
|
case bp_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_read_watchpoint:
|
case bp_read_watchpoint:
|
case bp_access_watchpoint:
|
case bp_access_watchpoint:
|
disable_breakpoint (bpt);
|
disable_breakpoint (bpt);
|
default:
|
default:
|
continue;
|
continue;
|
}
|
}
|
else if (strchr (args, '.'))
|
else if (strchr (args, '.'))
|
{
|
{
|
struct bp_location *loc = find_location_by_number (args);
|
struct bp_location *loc = find_location_by_number (args);
|
if (loc)
|
if (loc)
|
loc->enabled = 0;
|
loc->enabled = 0;
|
update_global_location_list (0);
|
update_global_location_list (0);
|
}
|
}
|
else
|
else
|
map_breakpoint_numbers (args, disable_breakpoint);
|
map_breakpoint_numbers (args, disable_breakpoint);
|
}
|
}
|
|
|
static void
|
static void
|
do_enable_breakpoint (struct breakpoint *bpt, enum bpdisp disposition)
|
do_enable_breakpoint (struct breakpoint *bpt, enum bpdisp disposition)
|
{
|
{
|
int target_resources_ok, other_type_used;
|
int target_resources_ok, other_type_used;
|
struct value *mark;
|
struct value *mark;
|
|
|
if (bpt->type == bp_hardware_breakpoint)
|
if (bpt->type == bp_hardware_breakpoint)
|
{
|
{
|
int i;
|
int i;
|
i = hw_breakpoint_used_count ();
|
i = hw_breakpoint_used_count ();
|
target_resources_ok =
|
target_resources_ok =
|
target_can_use_hardware_watchpoint (bp_hardware_breakpoint,
|
target_can_use_hardware_watchpoint (bp_hardware_breakpoint,
|
i + 1, 0);
|
i + 1, 0);
|
if (target_resources_ok == 0)
|
if (target_resources_ok == 0)
|
error (_("No hardware breakpoint support in the target."));
|
error (_("No hardware breakpoint support in the target."));
|
else if (target_resources_ok < 0)
|
else if (target_resources_ok < 0)
|
error (_("Hardware breakpoints used exceeds limit."));
|
error (_("Hardware breakpoints used exceeds limit."));
|
}
|
}
|
|
|
if (bpt->type == bp_watchpoint
|
if (bpt->type == bp_watchpoint
|
|| bpt->type == bp_hardware_watchpoint
|
|| bpt->type == bp_hardware_watchpoint
|
|| bpt->type == bp_read_watchpoint
|
|| bpt->type == bp_read_watchpoint
|
|| bpt->type == bp_access_watchpoint)
|
|| bpt->type == bp_access_watchpoint)
|
{
|
{
|
struct gdb_exception e;
|
struct gdb_exception e;
|
|
|
TRY_CATCH (e, RETURN_MASK_ALL)
|
TRY_CATCH (e, RETURN_MASK_ALL)
|
{
|
{
|
update_watchpoint (bpt, 1 /* reparse */);
|
update_watchpoint (bpt, 1 /* reparse */);
|
}
|
}
|
if (e.reason < 0)
|
if (e.reason < 0)
|
{
|
{
|
exception_fprintf (gdb_stderr, e, _("Cannot enable watchpoint %d: "),
|
exception_fprintf (gdb_stderr, e, _("Cannot enable watchpoint %d: "),
|
bpt->number);
|
bpt->number);
|
return;
|
return;
|
}
|
}
|
}
|
}
|
|
|
if (bpt->enable_state != bp_permanent)
|
if (bpt->enable_state != bp_permanent)
|
bpt->enable_state = bp_enabled;
|
bpt->enable_state = bp_enabled;
|
bpt->disposition = disposition;
|
bpt->disposition = disposition;
|
update_global_location_list (1);
|
update_global_location_list (1);
|
breakpoints_changed ();
|
breakpoints_changed ();
|
|
|
observer_notify_breakpoint_modified (bpt->number);
|
observer_notify_breakpoint_modified (bpt->number);
|
}
|
}
|
|
|
|
|
void
|
void
|
enable_breakpoint (struct breakpoint *bpt)
|
enable_breakpoint (struct breakpoint *bpt)
|
{
|
{
|
do_enable_breakpoint (bpt, bpt->disposition);
|
do_enable_breakpoint (bpt, bpt->disposition);
|
}
|
}
|
|
|
/* The enable command enables the specified breakpoints (or all defined
|
/* The enable command enables the specified breakpoints (or all defined
|
breakpoints) so they once again become (or continue to be) effective
|
breakpoints) so they once again become (or continue to be) effective
|
in stopping the inferior. */
|
in stopping the inferior. */
|
|
|
static void
|
static void
|
enable_command (char *args, int from_tty)
|
enable_command (char *args, int from_tty)
|
{
|
{
|
struct breakpoint *bpt;
|
struct breakpoint *bpt;
|
if (args == 0)
|
if (args == 0)
|
ALL_BREAKPOINTS (bpt)
|
ALL_BREAKPOINTS (bpt)
|
switch (bpt->type)
|
switch (bpt->type)
|
{
|
{
|
case bp_none:
|
case bp_none:
|
warning (_("attempted to enable apparently deleted breakpoint #%d?"),
|
warning (_("attempted to enable apparently deleted breakpoint #%d?"),
|
bpt->number);
|
bpt->number);
|
continue;
|
continue;
|
case bp_breakpoint:
|
case bp_breakpoint:
|
case bp_tracepoint:
|
case bp_tracepoint:
|
case bp_fast_tracepoint:
|
case bp_fast_tracepoint:
|
case bp_catchpoint:
|
case bp_catchpoint:
|
case bp_hardware_breakpoint:
|
case bp_hardware_breakpoint:
|
case bp_watchpoint:
|
case bp_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_hardware_watchpoint:
|
case bp_read_watchpoint:
|
case bp_read_watchpoint:
|
case bp_access_watchpoint:
|
case bp_access_watchpoint:
|
enable_breakpoint (bpt);
|
enable_breakpoint (bpt);
|
default:
|
default:
|
continue;
|
continue;
|
}
|
}
|
else if (strchr (args, '.'))
|
else if (strchr (args, '.'))
|
{
|
{
|
struct bp_location *loc = find_location_by_number (args);
|
struct bp_location *loc = find_location_by_number (args);
|
if (loc)
|
if (loc)
|
loc->enabled = 1;
|
loc->enabled = 1;
|
update_global_location_list (1);
|
update_global_location_list (1);
|
}
|
}
|
else
|
else
|
map_breakpoint_numbers (args, enable_breakpoint);
|
map_breakpoint_numbers (args, enable_breakpoint);
|
}
|
}
|
|
|
static void
|
static void
|
enable_once_breakpoint (struct breakpoint *bpt)
|
enable_once_breakpoint (struct breakpoint *bpt)
|
{
|
{
|
do_enable_breakpoint (bpt, disp_disable);
|
do_enable_breakpoint (bpt, disp_disable);
|
}
|
}
|
|
|
static void
|
static void
|
enable_once_command (char *args, int from_tty)
|
enable_once_command (char *args, int from_tty)
|
{
|
{
|
map_breakpoint_numbers (args, enable_once_breakpoint);
|
map_breakpoint_numbers (args, enable_once_breakpoint);
|
}
|
}
|
|
|
static void
|
static void
|
enable_delete_breakpoint (struct breakpoint *bpt)
|
enable_delete_breakpoint (struct breakpoint *bpt)
|
{
|
{
|
do_enable_breakpoint (bpt, disp_del);
|
do_enable_breakpoint (bpt, disp_del);
|
}
|
}
|
|
|
static void
|
static void
|
enable_delete_command (char *args, int from_tty)
|
enable_delete_command (char *args, int from_tty)
|
{
|
{
|
map_breakpoint_numbers (args, enable_delete_breakpoint);
|
map_breakpoint_numbers (args, enable_delete_breakpoint);
|
}
|
}
|
|
|
static void
|
static void
|
set_breakpoint_cmd (char *args, int from_tty)
|
set_breakpoint_cmd (char *args, int from_tty)
|
{
|
{
|
}
|
}
|
|
|
static void
|
static void
|
show_breakpoint_cmd (char *args, int from_tty)
|
show_breakpoint_cmd (char *args, int from_tty)
|
{
|
{
|
}
|
}
|
|
|
/* Invalidate last known value of any hardware watchpoint if
|
/* Invalidate last known value of any hardware watchpoint if
|
the memory which that value represents has been written to by
|
the memory which that value represents has been written to by
|
GDB itself. */
|
GDB itself. */
|
|
|
static void
|
static void
|
invalidate_bp_value_on_memory_change (CORE_ADDR addr, int len,
|
invalidate_bp_value_on_memory_change (CORE_ADDR addr, int len,
|
const bfd_byte *data)
|
const bfd_byte *data)
|
{
|
{
|
struct breakpoint *bp;
|
struct breakpoint *bp;
|
|
|
ALL_BREAKPOINTS (bp)
|
ALL_BREAKPOINTS (bp)
|
if (bp->enable_state == bp_enabled
|
if (bp->enable_state == bp_enabled
|
&& bp->type == bp_hardware_watchpoint
|
&& bp->type == bp_hardware_watchpoint
|
&& bp->val_valid && bp->val)
|
&& bp->val_valid && bp->val)
|
{
|
{
|
struct bp_location *loc;
|
struct bp_location *loc;
|
|
|
for (loc = bp->loc; loc != NULL; loc = loc->next)
|
for (loc = bp->loc; loc != NULL; loc = loc->next)
|
if (loc->loc_type == bp_loc_hardware_watchpoint
|
if (loc->loc_type == bp_loc_hardware_watchpoint
|
&& loc->address + loc->length > addr
|
&& loc->address + loc->length > addr
|
&& addr + len > loc->address)
|
&& addr + len > loc->address)
|
{
|
{
|
value_free (bp->val);
|
value_free (bp->val);
|
bp->val = NULL;
|
bp->val = NULL;
|
bp->val_valid = 0;
|
bp->val_valid = 0;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Use default_breakpoint_'s, or nothing if they aren't valid. */
|
/* Use default_breakpoint_'s, or nothing if they aren't valid. */
|
|
|
struct symtabs_and_lines
|
struct symtabs_and_lines
|
decode_line_spec_1 (char *string, int funfirstline)
|
decode_line_spec_1 (char *string, int funfirstline)
|
{
|
{
|
struct symtabs_and_lines sals;
|
struct symtabs_and_lines sals;
|
if (string == 0)
|
if (string == 0)
|
error (_("Empty line specification."));
|
error (_("Empty line specification."));
|
if (default_breakpoint_valid)
|
if (default_breakpoint_valid)
|
sals = decode_line_1 (&string, funfirstline,
|
sals = decode_line_1 (&string, funfirstline,
|
default_breakpoint_symtab,
|
default_breakpoint_symtab,
|
default_breakpoint_line,
|
default_breakpoint_line,
|
(char ***) NULL, NULL);
|
(char ***) NULL, NULL);
|
else
|
else
|
sals = decode_line_1 (&string, funfirstline,
|
sals = decode_line_1 (&string, funfirstline,
|
(struct symtab *) NULL, 0, (char ***) NULL, NULL);
|
(struct symtab *) NULL, 0, (char ***) NULL, NULL);
|
if (*string)
|
if (*string)
|
error (_("Junk at end of line specification: %s"), string);
|
error (_("Junk at end of line specification: %s"), string);
|
return sals;
|
return sals;
|
}
|
}
|
|
|
/* Create and insert a raw software breakpoint at PC. Return an
|
/* Create and insert a raw software breakpoint at PC. Return an
|
identifier, which should be used to remove the breakpoint later.
|
identifier, which should be used to remove the breakpoint later.
|
In general, places which call this should be using something on the
|
In general, places which call this should be using something on the
|
breakpoint chain instead; this function should be eliminated
|
breakpoint chain instead; this function should be eliminated
|
someday. */
|
someday. */
|
|
|
void *
|
void *
|
deprecated_insert_raw_breakpoint (struct gdbarch *gdbarch,
|
deprecated_insert_raw_breakpoint (struct gdbarch *gdbarch,
|
struct address_space *aspace, CORE_ADDR pc)
|
struct address_space *aspace, CORE_ADDR pc)
|
{
|
{
|
struct bp_target_info *bp_tgt;
|
struct bp_target_info *bp_tgt;
|
|
|
bp_tgt = XZALLOC (struct bp_target_info);
|
bp_tgt = XZALLOC (struct bp_target_info);
|
|
|
bp_tgt->placed_address_space = aspace;
|
bp_tgt->placed_address_space = aspace;
|
bp_tgt->placed_address = pc;
|
bp_tgt->placed_address = pc;
|
|
|
if (target_insert_breakpoint (gdbarch, bp_tgt) != 0)
|
if (target_insert_breakpoint (gdbarch, bp_tgt) != 0)
|
{
|
{
|
/* Could not insert the breakpoint. */
|
/* Could not insert the breakpoint. */
|
xfree (bp_tgt);
|
xfree (bp_tgt);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
return bp_tgt;
|
return bp_tgt;
|
}
|
}
|
|
|
/* Remove a breakpoint BP inserted by deprecated_insert_raw_breakpoint. */
|
/* Remove a breakpoint BP inserted by deprecated_insert_raw_breakpoint. */
|
|
|
int
|
int
|
deprecated_remove_raw_breakpoint (struct gdbarch *gdbarch, void *bp)
|
deprecated_remove_raw_breakpoint (struct gdbarch *gdbarch, void *bp)
|
{
|
{
|
struct bp_target_info *bp_tgt = bp;
|
struct bp_target_info *bp_tgt = bp;
|
int ret;
|
int ret;
|
|
|
ret = target_remove_breakpoint (gdbarch, bp_tgt);
|
ret = target_remove_breakpoint (gdbarch, bp_tgt);
|
xfree (bp_tgt);
|
xfree (bp_tgt);
|
|
|
return ret;
|
return ret;
|
}
|
}
|
|
|
/* One (or perhaps two) breakpoints used for software single stepping. */
|
/* One (or perhaps two) breakpoints used for software single stepping. */
|
|
|
static void *single_step_breakpoints[2];
|
static void *single_step_breakpoints[2];
|
static struct gdbarch *single_step_gdbarch[2];
|
static struct gdbarch *single_step_gdbarch[2];
|
|
|
/* Create and insert a breakpoint for software single step. */
|
/* Create and insert a breakpoint for software single step. */
|
|
|
void
|
void
|
insert_single_step_breakpoint (struct gdbarch *gdbarch,
|
insert_single_step_breakpoint (struct gdbarch *gdbarch,
|
struct address_space *aspace, CORE_ADDR next_pc)
|
struct address_space *aspace, CORE_ADDR next_pc)
|
{
|
{
|
void **bpt_p;
|
void **bpt_p;
|
|
|
if (single_step_breakpoints[0] == NULL)
|
if (single_step_breakpoints[0] == NULL)
|
{
|
{
|
bpt_p = &single_step_breakpoints[0];
|
bpt_p = &single_step_breakpoints[0];
|
single_step_gdbarch[0] = gdbarch;
|
single_step_gdbarch[0] = gdbarch;
|
}
|
}
|
else
|
else
|
{
|
{
|
gdb_assert (single_step_breakpoints[1] == NULL);
|
gdb_assert (single_step_breakpoints[1] == NULL);
|
bpt_p = &single_step_breakpoints[1];
|
bpt_p = &single_step_breakpoints[1];
|
single_step_gdbarch[1] = gdbarch;
|
single_step_gdbarch[1] = gdbarch;
|
}
|
}
|
|
|
/* NOTE drow/2006-04-11: A future improvement to this function would be
|
/* NOTE drow/2006-04-11: A future improvement to this function would be
|
to only create the breakpoints once, and actually put them on the
|
to only create the breakpoints once, and actually put them on the
|
breakpoint chain. That would let us use set_raw_breakpoint. We could
|
breakpoint chain. That would let us use set_raw_breakpoint. We could
|
adjust the addresses each time they were needed. Doing this requires
|
adjust the addresses each time they were needed. Doing this requires
|
corresponding changes elsewhere where single step breakpoints are
|
corresponding changes elsewhere where single step breakpoints are
|
handled, however. So, for now, we use this. */
|
handled, however. So, for now, we use this. */
|
|
|
*bpt_p = deprecated_insert_raw_breakpoint (gdbarch, aspace, next_pc);
|
*bpt_p = deprecated_insert_raw_breakpoint (gdbarch, aspace, next_pc);
|
if (*bpt_p == NULL)
|
if (*bpt_p == NULL)
|
error (_("Could not insert single-step breakpoint at %s"),
|
error (_("Could not insert single-step breakpoint at %s"),
|
paddress (gdbarch, next_pc));
|
paddress (gdbarch, next_pc));
|
}
|
}
|
|
|
/* Remove and delete any breakpoints used for software single step. */
|
/* Remove and delete any breakpoints used for software single step. */
|
|
|
void
|
void
|
remove_single_step_breakpoints (void)
|
remove_single_step_breakpoints (void)
|
{
|
{
|
gdb_assert (single_step_breakpoints[0] != NULL);
|
gdb_assert (single_step_breakpoints[0] != NULL);
|
|
|
/* See insert_single_step_breakpoint for more about this deprecated
|
/* See insert_single_step_breakpoint for more about this deprecated
|
call. */
|
call. */
|
deprecated_remove_raw_breakpoint (single_step_gdbarch[0],
|
deprecated_remove_raw_breakpoint (single_step_gdbarch[0],
|
single_step_breakpoints[0]);
|
single_step_breakpoints[0]);
|
single_step_gdbarch[0] = NULL;
|
single_step_gdbarch[0] = NULL;
|
single_step_breakpoints[0] = NULL;
|
single_step_breakpoints[0] = NULL;
|
|
|
if (single_step_breakpoints[1] != NULL)
|
if (single_step_breakpoints[1] != NULL)
|
{
|
{
|
deprecated_remove_raw_breakpoint (single_step_gdbarch[1],
|
deprecated_remove_raw_breakpoint (single_step_gdbarch[1],
|
single_step_breakpoints[1]);
|
single_step_breakpoints[1]);
|
single_step_gdbarch[1] = NULL;
|
single_step_gdbarch[1] = NULL;
|
single_step_breakpoints[1] = NULL;
|
single_step_breakpoints[1] = NULL;
|
}
|
}
|
}
|
}
|
|
|
/* Check whether a software single-step breakpoint is inserted at PC. */
|
/* Check whether a software single-step breakpoint is inserted at PC. */
|
|
|
static int
|
static int
|
single_step_breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc)
|
single_step_breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc)
|
{
|
{
|
int i;
|
int i;
|
|
|
for (i = 0; i < 2; i++)
|
for (i = 0; i < 2; i++)
|
{
|
{
|
struct bp_target_info *bp_tgt = single_step_breakpoints[i];
|
struct bp_target_info *bp_tgt = single_step_breakpoints[i];
|
if (bp_tgt
|
if (bp_tgt
|
&& breakpoint_address_match (bp_tgt->placed_address_space,
|
&& breakpoint_address_match (bp_tgt->placed_address_space,
|
bp_tgt->placed_address,
|
bp_tgt->placed_address,
|
aspace, pc))
|
aspace, pc))
|
return 1;
|
return 1;
|
}
|
}
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Returns 0 if 'bp' is NOT a syscall catchpoint,
|
/* Returns 0 if 'bp' is NOT a syscall catchpoint,
|
non-zero otherwise. */
|
non-zero otherwise. */
|
static int
|
static int
|
is_syscall_catchpoint_enabled (struct breakpoint *bp)
|
is_syscall_catchpoint_enabled (struct breakpoint *bp)
|
{
|
{
|
if (syscall_catchpoint_p (bp)
|
if (syscall_catchpoint_p (bp)
|
&& bp->enable_state != bp_disabled
|
&& bp->enable_state != bp_disabled
|
&& bp->enable_state != bp_call_disabled)
|
&& bp->enable_state != bp_call_disabled)
|
return 1;
|
return 1;
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
int
|
int
|
catch_syscall_enabled (void)
|
catch_syscall_enabled (void)
|
{
|
{
|
struct inferior *inf = current_inferior ();
|
struct inferior *inf = current_inferior ();
|
|
|
return inf->total_syscalls_count != 0;
|
return inf->total_syscalls_count != 0;
|
}
|
}
|
|
|
int
|
int
|
catching_syscall_number (int syscall_number)
|
catching_syscall_number (int syscall_number)
|
{
|
{
|
struct breakpoint *bp;
|
struct breakpoint *bp;
|
|
|
ALL_BREAKPOINTS (bp)
|
ALL_BREAKPOINTS (bp)
|
if (is_syscall_catchpoint_enabled (bp))
|
if (is_syscall_catchpoint_enabled (bp))
|
{
|
{
|
if (bp->syscalls_to_be_caught)
|
if (bp->syscalls_to_be_caught)
|
{
|
{
|
int i, iter;
|
int i, iter;
|
for (i = 0;
|
for (i = 0;
|
VEC_iterate (int, bp->syscalls_to_be_caught, i, iter);
|
VEC_iterate (int, bp->syscalls_to_be_caught, i, iter);
|
i++)
|
i++)
|
if (syscall_number == iter)
|
if (syscall_number == iter)
|
return 1;
|
return 1;
|
}
|
}
|
else
|
else
|
return 1;
|
return 1;
|
}
|
}
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Complete syscall names. Used by "catch syscall". */
|
/* Complete syscall names. Used by "catch syscall". */
|
static char **
|
static char **
|
catch_syscall_completer (struct cmd_list_element *cmd,
|
catch_syscall_completer (struct cmd_list_element *cmd,
|
char *text, char *word)
|
char *text, char *word)
|
{
|
{
|
const char **list = get_syscall_names ();
|
const char **list = get_syscall_names ();
|
return (list == NULL) ? NULL : complete_on_enum (list, text, word);
|
return (list == NULL) ? NULL : complete_on_enum (list, text, word);
|
}
|
}
|
|
|
/* Tracepoint-specific operations. */
|
/* Tracepoint-specific operations. */
|
|
|
/* Set tracepoint count to NUM. */
|
/* Set tracepoint count to NUM. */
|
static void
|
static void
|
set_tracepoint_count (int num)
|
set_tracepoint_count (int num)
|
{
|
{
|
tracepoint_count = num;
|
tracepoint_count = num;
|
set_internalvar_integer (lookup_internalvar ("tpnum"), num);
|
set_internalvar_integer (lookup_internalvar ("tpnum"), num);
|
}
|
}
|
|
|
void
|
void
|
trace_command (char *arg, int from_tty)
|
trace_command (char *arg, int from_tty)
|
{
|
{
|
if (break_command_really (get_current_arch (),
|
if (break_command_really (get_current_arch (),
|
arg,
|
arg,
|
NULL, 0, 1 /* parse arg */,
|
NULL, 0, 1 /* parse arg */,
|
0 /* tempflag */, 0 /* hardwareflag */,
|
0 /* tempflag */, 0 /* hardwareflag */,
|
1 /* traceflag */,
|
1 /* traceflag */,
|
0 /* Ignore count */,
|
0 /* Ignore count */,
|
pending_break_support,
|
pending_break_support,
|
NULL,
|
NULL,
|
from_tty,
|
from_tty,
|
1 /* enabled */))
|
1 /* enabled */))
|
set_tracepoint_count (breakpoint_count);
|
set_tracepoint_count (breakpoint_count);
|
}
|
}
|
|
|
void
|
void
|
ftrace_command (char *arg, int from_tty)
|
ftrace_command (char *arg, int from_tty)
|
{
|
{
|
if (break_command_really (get_current_arch (),
|
if (break_command_really (get_current_arch (),
|
arg,
|
arg,
|
NULL, 0, 1 /* parse arg */,
|
NULL, 0, 1 /* parse arg */,
|
0 /* tempflag */, 1 /* hardwareflag */,
|
0 /* tempflag */, 1 /* hardwareflag */,
|
1 /* traceflag */,
|
1 /* traceflag */,
|
0 /* Ignore count */,
|
0 /* Ignore count */,
|
pending_break_support,
|
pending_break_support,
|
NULL,
|
NULL,
|
from_tty,
|
from_tty,
|
1 /* enabled */))
|
1 /* enabled */))
|
set_tracepoint_count (breakpoint_count);
|
set_tracepoint_count (breakpoint_count);
|
}
|
}
|
|
|
/* Given information about a tracepoint as recorded on a target (which
|
/* Given information about a tracepoint as recorded on a target (which
|
can be either a live system or a trace file), attempt to create an
|
can be either a live system or a trace file), attempt to create an
|
equivalent GDB tracepoint. This is not a reliable process, since
|
equivalent GDB tracepoint. This is not a reliable process, since
|
the target does not necessarily have all the information used when
|
the target does not necessarily have all the information used when
|
the tracepoint was originally defined. */
|
the tracepoint was originally defined. */
|
|
|
struct breakpoint *
|
struct breakpoint *
|
create_tracepoint_from_upload (struct uploaded_tp *utp)
|
create_tracepoint_from_upload (struct uploaded_tp *utp)
|
{
|
{
|
char buf[100];
|
char buf[100];
|
struct breakpoint *tp;
|
struct breakpoint *tp;
|
|
|
/* In the absence of a source location, fall back to raw address. */
|
/* In the absence of a source location, fall back to raw address. */
|
sprintf (buf, "*%s", paddress (get_current_arch(), utp->addr));
|
sprintf (buf, "*%s", paddress (get_current_arch(), utp->addr));
|
|
|
if (!break_command_really (get_current_arch (),
|
if (!break_command_really (get_current_arch (),
|
buf,
|
buf,
|
NULL, 0, 1 /* parse arg */,
|
NULL, 0, 1 /* parse arg */,
|
0 /* tempflag */,
|
0 /* tempflag */,
|
(utp->type == bp_fast_tracepoint) /* hardwareflag */,
|
(utp->type == bp_fast_tracepoint) /* hardwareflag */,
|
1 /* traceflag */,
|
1 /* traceflag */,
|
0 /* Ignore count */,
|
0 /* Ignore count */,
|
pending_break_support,
|
pending_break_support,
|
NULL,
|
NULL,
|
0 /* from_tty */,
|
0 /* from_tty */,
|
utp->enabled /* enabled */))
|
utp->enabled /* enabled */))
|
return NULL;
|
return NULL;
|
|
|
set_tracepoint_count (breakpoint_count);
|
set_tracepoint_count (breakpoint_count);
|
|
|
tp = get_tracepoint (tracepoint_count);
|
tp = get_tracepoint (tracepoint_count);
|
gdb_assert (tp != NULL);
|
gdb_assert (tp != NULL);
|
|
|
if (utp->pass > 0)
|
if (utp->pass > 0)
|
{
|
{
|
sprintf (buf, "%d %d", utp->pass, tp->number);
|
sprintf (buf, "%d %d", utp->pass, tp->number);
|
|
|
trace_pass_command (buf, 0);
|
trace_pass_command (buf, 0);
|
}
|
}
|
|
|
if (utp->cond)
|
if (utp->cond)
|
{
|
{
|
printf_filtered ("Want to restore a condition\n");
|
printf_filtered ("Want to restore a condition\n");
|
}
|
}
|
|
|
if (utp->numactions > 0)
|
if (utp->numactions > 0)
|
{
|
{
|
printf_filtered ("Want to restore action list\n");
|
printf_filtered ("Want to restore action list\n");
|
}
|
}
|
|
|
if (utp->num_step_actions > 0)
|
if (utp->num_step_actions > 0)
|
{
|
{
|
printf_filtered ("Want to restore action list\n");
|
printf_filtered ("Want to restore action list\n");
|
}
|
}
|
|
|
return tp;
|
return tp;
|
}
|
}
|
|
|
/* Print information on tracepoint number TPNUM_EXP, or all if
|
/* Print information on tracepoint number TPNUM_EXP, or all if
|
omitted. */
|
omitted. */
|
|
|
static void
|
static void
|
tracepoints_info (char *tpnum_exp, int from_tty)
|
tracepoints_info (char *tpnum_exp, int from_tty)
|
{
|
{
|
struct breakpoint *b;
|
struct breakpoint *b;
|
int tps_to_list = 0;
|
int tps_to_list = 0;
|
|
|
/* In the no-arguments case, say "No tracepoints" if none found. */
|
/* In the no-arguments case, say "No tracepoints" if none found. */
|
if (tpnum_exp == 0)
|
if (tpnum_exp == 0)
|
{
|
{
|
ALL_TRACEPOINTS (b)
|
ALL_TRACEPOINTS (b)
|
{
|
{
|
if (b->number >= 0)
|
if (b->number >= 0)
|
{
|
{
|
tps_to_list = 1;
|
tps_to_list = 1;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
if (!tps_to_list)
|
if (!tps_to_list)
|
{
|
{
|
ui_out_message (uiout, 0, "No tracepoints.\n");
|
ui_out_message (uiout, 0, "No tracepoints.\n");
|
return;
|
return;
|
}
|
}
|
}
|
}
|
|
|
/* Otherwise be the same as "info break". */
|
/* Otherwise be the same as "info break". */
|
breakpoints_info (tpnum_exp, from_tty);
|
breakpoints_info (tpnum_exp, from_tty);
|
}
|
}
|
|
|
/* The 'enable trace' command enables tracepoints.
|
/* The 'enable trace' command enables tracepoints.
|
Not supported by all targets. */
|
Not supported by all targets. */
|
static void
|
static void
|
enable_trace_command (char *args, int from_tty)
|
enable_trace_command (char *args, int from_tty)
|
{
|
{
|
enable_command (args, from_tty);
|
enable_command (args, from_tty);
|
}
|
}
|
|
|
/* The 'disable trace' command disables tracepoints.
|
/* The 'disable trace' command disables tracepoints.
|
Not supported by all targets. */
|
Not supported by all targets. */
|
static void
|
static void
|
disable_trace_command (char *args, int from_tty)
|
disable_trace_command (char *args, int from_tty)
|
{
|
{
|
disable_command (args, from_tty);
|
disable_command (args, from_tty);
|
}
|
}
|
|
|
/* Remove a tracepoint (or all if no argument) */
|
/* Remove a tracepoint (or all if no argument) */
|
static void
|
static void
|
delete_trace_command (char *arg, int from_tty)
|
delete_trace_command (char *arg, int from_tty)
|
{
|
{
|
struct breakpoint *b, *temp;
|
struct breakpoint *b, *temp;
|
|
|
dont_repeat ();
|
dont_repeat ();
|
|
|
if (arg == 0)
|
if (arg == 0)
|
{
|
{
|
int breaks_to_delete = 0;
|
int breaks_to_delete = 0;
|
|
|
/* Delete all breakpoints if no argument.
|
/* Delete all breakpoints if no argument.
|
Do not delete internal or call-dummy breakpoints, these
|
Do not delete internal or call-dummy breakpoints, these
|
have to be deleted with an explicit breakpoint number argument. */
|
have to be deleted with an explicit breakpoint number argument. */
|
ALL_TRACEPOINTS (b)
|
ALL_TRACEPOINTS (b)
|
{
|
{
|
if (b->number >= 0)
|
if (b->number >= 0)
|
{
|
{
|
breaks_to_delete = 1;
|
breaks_to_delete = 1;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
/* Ask user only if there are some breakpoints to delete. */
|
/* Ask user only if there are some breakpoints to delete. */
|
if (!from_tty
|
if (!from_tty
|
|| (breaks_to_delete && query (_("Delete all tracepoints? "))))
|
|| (breaks_to_delete && query (_("Delete all tracepoints? "))))
|
{
|
{
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
ALL_BREAKPOINTS_SAFE (b, temp)
|
{
|
{
|
if (tracepoint_type (b)
|
if (tracepoint_type (b)
|
&& b->number >= 0)
|
&& b->number >= 0)
|
delete_breakpoint (b);
|
delete_breakpoint (b);
|
}
|
}
|
}
|
}
|
}
|
}
|
else
|
else
|
map_breakpoint_numbers (arg, delete_breakpoint);
|
map_breakpoint_numbers (arg, delete_breakpoint);
|
}
|
}
|
|
|
/* Set passcount for tracepoint.
|
/* Set passcount for tracepoint.
|
|
|
First command argument is passcount, second is tracepoint number.
|
First command argument is passcount, second is tracepoint number.
|
If tracepoint number omitted, apply to most recently defined.
|
If tracepoint number omitted, apply to most recently defined.
|
Also accepts special argument "all". */
|
Also accepts special argument "all". */
|
|
|
static void
|
static void
|
trace_pass_command (char *args, int from_tty)
|
trace_pass_command (char *args, int from_tty)
|
{
|
{
|
struct breakpoint *t1 = (struct breakpoint *) -1, *t2;
|
struct breakpoint *t1 = (struct breakpoint *) -1, *t2;
|
unsigned int count;
|
unsigned int count;
|
int all = 0;
|
int all = 0;
|
|
|
if (args == 0 || *args == 0)
|
if (args == 0 || *args == 0)
|
error (_("passcount command requires an argument (count + optional TP num)"));
|
error (_("passcount command requires an argument (count + optional TP num)"));
|
|
|
count = strtoul (args, &args, 10); /* Count comes first, then TP num. */
|
count = strtoul (args, &args, 10); /* Count comes first, then TP num. */
|
|
|
while (*args && isspace ((int) *args))
|
while (*args && isspace ((int) *args))
|
args++;
|
args++;
|
|
|
if (*args && strncasecmp (args, "all", 3) == 0)
|
if (*args && strncasecmp (args, "all", 3) == 0)
|
{
|
{
|
args += 3; /* Skip special argument "all". */
|
args += 3; /* Skip special argument "all". */
|
all = 1;
|
all = 1;
|
if (*args)
|
if (*args)
|
error (_("Junk at end of arguments."));
|
error (_("Junk at end of arguments."));
|
}
|
}
|
else
|
else
|
t1 = get_tracepoint_by_number (&args, 1, 1);
|
t1 = get_tracepoint_by_number (&args, 1, 1);
|
|
|
do
|
do
|
{
|
{
|
if (t1)
|
if (t1)
|
{
|
{
|
ALL_TRACEPOINTS (t2)
|
ALL_TRACEPOINTS (t2)
|
if (t1 == (struct breakpoint *) -1 || t1 == t2)
|
if (t1 == (struct breakpoint *) -1 || t1 == t2)
|
{
|
{
|
t2->pass_count = count;
|
t2->pass_count = count;
|
observer_notify_tracepoint_modified (t2->number);
|
observer_notify_tracepoint_modified (t2->number);
|
if (from_tty)
|
if (from_tty)
|
printf_filtered (_("Setting tracepoint %d's passcount to %d\n"),
|
printf_filtered (_("Setting tracepoint %d's passcount to %d\n"),
|
t2->number, count);
|
t2->number, count);
|
}
|
}
|
if (! all && *args)
|
if (! all && *args)
|
t1 = get_tracepoint_by_number (&args, 1, 0);
|
t1 = get_tracepoint_by_number (&args, 1, 0);
|
}
|
}
|
}
|
}
|
while (*args);
|
while (*args);
|
}
|
}
|
|
|
struct breakpoint *
|
struct breakpoint *
|
get_tracepoint (int num)
|
get_tracepoint (int num)
|
{
|
{
|
struct breakpoint *t;
|
struct breakpoint *t;
|
|
|
ALL_TRACEPOINTS (t)
|
ALL_TRACEPOINTS (t)
|
if (t->number == num)
|
if (t->number == num)
|
return t;
|
return t;
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Find the tracepoint with the given target-side number (which may be
|
/* Find the tracepoint with the given target-side number (which may be
|
different from the tracepoint number after disconnecting and
|
different from the tracepoint number after disconnecting and
|
reconnecting). */
|
reconnecting). */
|
|
|
struct breakpoint *
|
struct breakpoint *
|
get_tracepoint_by_number_on_target (int num)
|
get_tracepoint_by_number_on_target (int num)
|
{
|
{
|
struct breakpoint *t;
|
struct breakpoint *t;
|
|
|
ALL_TRACEPOINTS (t)
|
ALL_TRACEPOINTS (t)
|
if (t->number_on_target == num)
|
if (t->number_on_target == num)
|
return t;
|
return t;
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Utility: parse a tracepoint number and look it up in the list.
|
/* Utility: parse a tracepoint number and look it up in the list.
|
If MULTI_P is true, there might be a range of tracepoints in ARG.
|
If MULTI_P is true, there might be a range of tracepoints in ARG.
|
if OPTIONAL_P is true, then if the argument is missing, the most
|
if OPTIONAL_P is true, then if the argument is missing, the most
|
recent tracepoint (tracepoint_count) is returned. */
|
recent tracepoint (tracepoint_count) is returned. */
|
struct breakpoint *
|
struct breakpoint *
|
get_tracepoint_by_number (char **arg, int multi_p, int optional_p)
|
get_tracepoint_by_number (char **arg, int multi_p, int optional_p)
|
{
|
{
|
extern int tracepoint_count;
|
extern int tracepoint_count;
|
struct breakpoint *t;
|
struct breakpoint *t;
|
int tpnum;
|
int tpnum;
|
char *instring = arg == NULL ? NULL : *arg;
|
char *instring = arg == NULL ? NULL : *arg;
|
|
|
if (arg == NULL || *arg == NULL || ! **arg)
|
if (arg == NULL || *arg == NULL || ! **arg)
|
{
|
{
|
if (optional_p)
|
if (optional_p)
|
tpnum = tracepoint_count;
|
tpnum = tracepoint_count;
|
else
|
else
|
error_no_arg (_("tracepoint number"));
|
error_no_arg (_("tracepoint number"));
|
}
|
}
|
else
|
else
|
tpnum = multi_p ? get_number_or_range (arg) : get_number (arg);
|
tpnum = multi_p ? get_number_or_range (arg) : get_number (arg);
|
|
|
if (tpnum <= 0)
|
if (tpnum <= 0)
|
{
|
{
|
if (instring && *instring)
|
if (instring && *instring)
|
printf_filtered (_("bad tracepoint number at or near '%s'\n"),
|
printf_filtered (_("bad tracepoint number at or near '%s'\n"),
|
instring);
|
instring);
|
else
|
else
|
printf_filtered (_("Tracepoint argument missing and no previous tracepoint\n"));
|
printf_filtered (_("Tracepoint argument missing and no previous tracepoint\n"));
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
ALL_TRACEPOINTS (t)
|
ALL_TRACEPOINTS (t)
|
if (t->number == tpnum)
|
if (t->number == tpnum)
|
{
|
{
|
return t;
|
return t;
|
}
|
}
|
|
|
/* FIXME: if we are in the middle of a range we don't want to give
|
/* FIXME: if we are in the middle of a range we don't want to give
|
a message. The current interface to get_number_or_range doesn't
|
a message. The current interface to get_number_or_range doesn't
|
allow us to discover this. */
|
allow us to discover this. */
|
printf_unfiltered ("No tracepoint number %d.\n", tpnum);
|
printf_unfiltered ("No tracepoint number %d.\n", tpnum);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* save-tracepoints command */
|
/* save-tracepoints command */
|
static void
|
static void
|
tracepoint_save_command (char *args, int from_tty)
|
tracepoint_save_command (char *args, int from_tty)
|
{
|
{
|
struct breakpoint *tp;
|
struct breakpoint *tp;
|
int any_tp = 0;
|
int any_tp = 0;
|
struct action_line *line;
|
struct action_line *line;
|
FILE *fp;
|
FILE *fp;
|
char *i1 = " ", *i2 = " ";
|
char *i1 = " ", *i2 = " ";
|
char *indent, *actionline, *pathname;
|
char *indent, *actionline, *pathname;
|
char tmp[40];
|
char tmp[40];
|
struct cleanup *cleanup;
|
struct cleanup *cleanup;
|
|
|
if (args == 0 || *args == 0)
|
if (args == 0 || *args == 0)
|
error (_("Argument required (file name in which to save tracepoints)"));
|
error (_("Argument required (file name in which to save tracepoints)"));
|
|
|
/* See if we have anything to save. */
|
/* See if we have anything to save. */
|
ALL_TRACEPOINTS (tp)
|
ALL_TRACEPOINTS (tp)
|
{
|
{
|
any_tp = 1;
|
any_tp = 1;
|
break;
|
break;
|
}
|
}
|
if (!any_tp)
|
if (!any_tp)
|
{
|
{
|
warning (_("save-tracepoints: no tracepoints to save."));
|
warning (_("save-tracepoints: no tracepoints to save."));
|
return;
|
return;
|
}
|
}
|
|
|
pathname = tilde_expand (args);
|
pathname = tilde_expand (args);
|
cleanup = make_cleanup (xfree, pathname);
|
cleanup = make_cleanup (xfree, pathname);
|
fp = fopen (pathname, "w");
|
fp = fopen (pathname, "w");
|
if (!fp)
|
if (!fp)
|
error (_("Unable to open file '%s' for saving tracepoints (%s)"),
|
error (_("Unable to open file '%s' for saving tracepoints (%s)"),
|
args, safe_strerror (errno));
|
args, safe_strerror (errno));
|
make_cleanup_fclose (fp);
|
make_cleanup_fclose (fp);
|
|
|
ALL_TRACEPOINTS (tp)
|
ALL_TRACEPOINTS (tp)
|
{
|
{
|
if (tp->addr_string)
|
if (tp->addr_string)
|
fprintf (fp, "trace %s\n", tp->addr_string);
|
fprintf (fp, "trace %s\n", tp->addr_string);
|
else
|
else
|
{
|
{
|
sprintf_vma (tmp, tp->loc->address);
|
sprintf_vma (tmp, tp->loc->address);
|
fprintf (fp, "trace *0x%s\n", tmp);
|
fprintf (fp, "trace *0x%s\n", tmp);
|
}
|
}
|
|
|
if (tp->pass_count)
|
if (tp->pass_count)
|
fprintf (fp, " passcount %d\n", tp->pass_count);
|
fprintf (fp, " passcount %d\n", tp->pass_count);
|
|
|
if (tp->actions)
|
if (tp->actions)
|
{
|
{
|
fprintf (fp, " actions\n");
|
fprintf (fp, " actions\n");
|
indent = i1;
|
indent = i1;
|
for (line = tp->actions; line; line = line->next)
|
for (line = tp->actions; line; line = line->next)
|
{
|
{
|
struct cmd_list_element *cmd;
|
struct cmd_list_element *cmd;
|
|
|
QUIT; /* allow user to bail out with ^C */
|
QUIT; /* allow user to bail out with ^C */
|
actionline = line->action;
|
actionline = line->action;
|
while (isspace ((int) *actionline))
|
while (isspace ((int) *actionline))
|
actionline++;
|
actionline++;
|
|
|
fprintf (fp, "%s%s\n", indent, actionline);
|
fprintf (fp, "%s%s\n", indent, actionline);
|
if (*actionline != '#') /* skip for comment lines */
|
if (*actionline != '#') /* skip for comment lines */
|
{
|
{
|
cmd = lookup_cmd (&actionline, cmdlist, "", -1, 1);
|
cmd = lookup_cmd (&actionline, cmdlist, "", -1, 1);
|
if (cmd == 0)
|
if (cmd == 0)
|
error (_("Bad action list item: %s"), actionline);
|
error (_("Bad action list item: %s"), actionline);
|
if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand))
|
if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand))
|
indent = i2;
|
indent = i2;
|
else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand))
|
else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand))
|
indent = i1;
|
indent = i1;
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
do_cleanups (cleanup);
|
do_cleanups (cleanup);
|
if (from_tty)
|
if (from_tty)
|
printf_filtered (_("Tracepoints saved to file '%s'.\n"), args);
|
printf_filtered (_("Tracepoints saved to file '%s'.\n"), args);
|
return;
|
return;
|
}
|
}
|
|
|
/* Create a vector of all tracepoints. */
|
/* Create a vector of all tracepoints. */
|
|
|
VEC(breakpoint_p) *
|
VEC(breakpoint_p) *
|
all_tracepoints ()
|
all_tracepoints ()
|
{
|
{
|
VEC(breakpoint_p) *tp_vec = 0;
|
VEC(breakpoint_p) *tp_vec = 0;
|
struct breakpoint *tp;
|
struct breakpoint *tp;
|
|
|
ALL_TRACEPOINTS (tp)
|
ALL_TRACEPOINTS (tp)
|
{
|
{
|
VEC_safe_push (breakpoint_p, tp_vec, tp);
|
VEC_safe_push (breakpoint_p, tp_vec, tp);
|
}
|
}
|
|
|
return tp_vec;
|
return tp_vec;
|
}
|
}
|
|
|
|
|
/* This help string is used for the break, hbreak, tbreak and thbreak commands.
|
/* This help string is used for the break, hbreak, tbreak and thbreak commands.
|
It is defined as a macro to prevent duplication.
|
It is defined as a macro to prevent duplication.
|
COMMAND should be a string constant containing the name of the command. */
|
COMMAND should be a string constant containing the name of the command. */
|
#define BREAK_ARGS_HELP(command) \
|
#define BREAK_ARGS_HELP(command) \
|
command" [LOCATION] [thread THREADNUM] [if CONDITION]\n\
|
command" [LOCATION] [thread THREADNUM] [if CONDITION]\n\
|
LOCATION may be a line number, function name, or \"*\" and an address.\n\
|
LOCATION may be a line number, function name, or \"*\" and an address.\n\
|
If a line number is specified, break at start of code for that line.\n\
|
If a line number is specified, break at start of code for that line.\n\
|
If a function is specified, break at start of code for that function.\n\
|
If a function is specified, break at start of code for that function.\n\
|
If an address is specified, break at that exact address.\n\
|
If an address is specified, break at that exact address.\n\
|
With no LOCATION, uses current execution address of selected stack frame.\n\
|
With no LOCATION, uses current execution address of selected stack frame.\n\
|
This is useful for breaking on return to a stack frame.\n\
|
This is useful for breaking on return to a stack frame.\n\
|
\n\
|
\n\
|
THREADNUM is the number from \"info threads\".\n\
|
THREADNUM is the number from \"info threads\".\n\
|
CONDITION is a boolean expression.\n\
|
CONDITION is a boolean expression.\n\
|
\n\
|
\n\
|
Multiple breakpoints at one place are permitted, and useful if conditional.\n\
|
Multiple breakpoints at one place are permitted, and useful if conditional.\n\
|
\n\
|
\n\
|
Do \"help breakpoints\" for info on other commands dealing with breakpoints."
|
Do \"help breakpoints\" for info on other commands dealing with breakpoints."
|
|
|
/* List of subcommands for "catch". */
|
/* List of subcommands for "catch". */
|
static struct cmd_list_element *catch_cmdlist;
|
static struct cmd_list_element *catch_cmdlist;
|
|
|
/* List of subcommands for "tcatch". */
|
/* List of subcommands for "tcatch". */
|
static struct cmd_list_element *tcatch_cmdlist;
|
static struct cmd_list_element *tcatch_cmdlist;
|
|
|
/* Like add_cmd, but add the command to both the "catch" and "tcatch"
|
/* Like add_cmd, but add the command to both the "catch" and "tcatch"
|
lists, and pass some additional user data to the command function. */
|
lists, and pass some additional user data to the command function. */
|
static void
|
static void
|
add_catch_command (char *name, char *docstring,
|
add_catch_command (char *name, char *docstring,
|
void (*sfunc) (char *args, int from_tty,
|
void (*sfunc) (char *args, int from_tty,
|
struct cmd_list_element *command),
|
struct cmd_list_element *command),
|
char **(*completer) (struct cmd_list_element *cmd,
|
char **(*completer) (struct cmd_list_element *cmd,
|
char *text, char *word),
|
char *text, char *word),
|
void *user_data_catch,
|
void *user_data_catch,
|
void *user_data_tcatch)
|
void *user_data_tcatch)
|
{
|
{
|
struct cmd_list_element *command;
|
struct cmd_list_element *command;
|
|
|
command = add_cmd (name, class_breakpoint, NULL, docstring,
|
command = add_cmd (name, class_breakpoint, NULL, docstring,
|
&catch_cmdlist);
|
&catch_cmdlist);
|
set_cmd_sfunc (command, sfunc);
|
set_cmd_sfunc (command, sfunc);
|
set_cmd_context (command, user_data_catch);
|
set_cmd_context (command, user_data_catch);
|
set_cmd_completer (command, completer);
|
set_cmd_completer (command, completer);
|
|
|
command = add_cmd (name, class_breakpoint, NULL, docstring,
|
command = add_cmd (name, class_breakpoint, NULL, docstring,
|
&tcatch_cmdlist);
|
&tcatch_cmdlist);
|
set_cmd_sfunc (command, sfunc);
|
set_cmd_sfunc (command, sfunc);
|
set_cmd_context (command, user_data_tcatch);
|
set_cmd_context (command, user_data_tcatch);
|
set_cmd_completer (command, completer);
|
set_cmd_completer (command, completer);
|
}
|
}
|
|
|
static void
|
static void
|
clear_syscall_counts (int pid)
|
clear_syscall_counts (int pid)
|
{
|
{
|
struct inferior *inf = find_inferior_pid (pid);
|
struct inferior *inf = find_inferior_pid (pid);
|
|
|
inf->total_syscalls_count = 0;
|
inf->total_syscalls_count = 0;
|
inf->any_syscall_count = 0;
|
inf->any_syscall_count = 0;
|
VEC_free (int, inf->syscalls_counts);
|
VEC_free (int, inf->syscalls_counts);
|
}
|
}
|
|
|
void
|
void
|
_initialize_breakpoint (void)
|
_initialize_breakpoint (void)
|
{
|
{
|
static struct cmd_list_element *breakpoint_set_cmdlist;
|
static struct cmd_list_element *breakpoint_set_cmdlist;
|
static struct cmd_list_element *breakpoint_show_cmdlist;
|
static struct cmd_list_element *breakpoint_show_cmdlist;
|
struct cmd_list_element *c;
|
struct cmd_list_element *c;
|
|
|
observer_attach_solib_unloaded (disable_breakpoints_in_unloaded_shlib);
|
observer_attach_solib_unloaded (disable_breakpoints_in_unloaded_shlib);
|
observer_attach_inferior_exit (clear_syscall_counts);
|
observer_attach_inferior_exit (clear_syscall_counts);
|
observer_attach_memory_changed (invalidate_bp_value_on_memory_change);
|
observer_attach_memory_changed (invalidate_bp_value_on_memory_change);
|
|
|
breakpoint_chain = 0;
|
breakpoint_chain = 0;
|
/* Don't bother to call set_breakpoint_count. $bpnum isn't useful
|
/* Don't bother to call set_breakpoint_count. $bpnum isn't useful
|
before a breakpoint is set. */
|
before a breakpoint is set. */
|
breakpoint_count = 0;
|
breakpoint_count = 0;
|
|
|
tracepoint_count = 0;
|
tracepoint_count = 0;
|
|
|
add_com ("ignore", class_breakpoint, ignore_command, _("\
|
add_com ("ignore", class_breakpoint, ignore_command, _("\
|
Set ignore-count of breakpoint number N to COUNT.\n\
|
Set ignore-count of breakpoint number N to COUNT.\n\
|
Usage is `ignore N COUNT'."));
|
Usage is `ignore N COUNT'."));
|
if (xdb_commands)
|
if (xdb_commands)
|
add_com_alias ("bc", "ignore", class_breakpoint, 1);
|
add_com_alias ("bc", "ignore", class_breakpoint, 1);
|
|
|
add_com ("commands", class_breakpoint, commands_command, _("\
|
add_com ("commands", class_breakpoint, commands_command, _("\
|
Set commands to be executed when a breakpoint is hit.\n\
|
Set commands to be executed when a breakpoint is hit.\n\
|
Give breakpoint number as argument after \"commands\".\n\
|
Give breakpoint number as argument after \"commands\".\n\
|
With no argument, the targeted breakpoint is the last one set.\n\
|
With no argument, the targeted breakpoint is the last one set.\n\
|
The commands themselves follow starting on the next line.\n\
|
The commands themselves follow starting on the next line.\n\
|
Type a line containing \"end\" to indicate the end of them.\n\
|
Type a line containing \"end\" to indicate the end of them.\n\
|
Give \"silent\" as the first line to make the breakpoint silent;\n\
|
Give \"silent\" as the first line to make the breakpoint silent;\n\
|
then no output is printed when it is hit, except what the commands print."));
|
then no output is printed when it is hit, except what the commands print."));
|
|
|
add_com ("condition", class_breakpoint, condition_command, _("\
|
add_com ("condition", class_breakpoint, condition_command, _("\
|
Specify breakpoint number N to break only if COND is true.\n\
|
Specify breakpoint number N to break only if COND is true.\n\
|
Usage is `condition N COND', where N is an integer and COND is an\n\
|
Usage is `condition N COND', where N is an integer and COND is an\n\
|
expression to be evaluated whenever breakpoint N is reached."));
|
expression to be evaluated whenever breakpoint N is reached."));
|
|
|
c = add_com ("tbreak", class_breakpoint, tbreak_command, _("\
|
c = add_com ("tbreak", class_breakpoint, tbreak_command, _("\
|
Set a temporary breakpoint.\n\
|
Set a temporary breakpoint.\n\
|
Like \"break\" except the breakpoint is only temporary,\n\
|
Like \"break\" except the breakpoint is only temporary,\n\
|
so it will be deleted when hit. Equivalent to \"break\" followed\n\
|
so it will be deleted when hit. Equivalent to \"break\" followed\n\
|
by using \"enable delete\" on the breakpoint number.\n\
|
by using \"enable delete\" on the breakpoint number.\n\
|
\n"
|
\n"
|
BREAK_ARGS_HELP ("tbreak")));
|
BREAK_ARGS_HELP ("tbreak")));
|
set_cmd_completer (c, location_completer);
|
set_cmd_completer (c, location_completer);
|
|
|
c = add_com ("hbreak", class_breakpoint, hbreak_command, _("\
|
c = add_com ("hbreak", class_breakpoint, hbreak_command, _("\
|
Set a hardware assisted breakpoint.\n\
|
Set a hardware assisted breakpoint.\n\
|
Like \"break\" except the breakpoint requires hardware support,\n\
|
Like \"break\" except the breakpoint requires hardware support,\n\
|
some target hardware may not have this support.\n\
|
some target hardware may not have this support.\n\
|
\n"
|
\n"
|
BREAK_ARGS_HELP ("hbreak")));
|
BREAK_ARGS_HELP ("hbreak")));
|
set_cmd_completer (c, location_completer);
|
set_cmd_completer (c, location_completer);
|
|
|
c = add_com ("thbreak", class_breakpoint, thbreak_command, _("\
|
c = add_com ("thbreak", class_breakpoint, thbreak_command, _("\
|
Set a temporary hardware assisted breakpoint.\n\
|
Set a temporary hardware assisted breakpoint.\n\
|
Like \"hbreak\" except the breakpoint is only temporary,\n\
|
Like \"hbreak\" except the breakpoint is only temporary,\n\
|
so it will be deleted when hit.\n\
|
so it will be deleted when hit.\n\
|
\n"
|
\n"
|
BREAK_ARGS_HELP ("thbreak")));
|
BREAK_ARGS_HELP ("thbreak")));
|
set_cmd_completer (c, location_completer);
|
set_cmd_completer (c, location_completer);
|
|
|
add_prefix_cmd ("enable", class_breakpoint, enable_command, _("\
|
add_prefix_cmd ("enable", class_breakpoint, enable_command, _("\
|
Enable some breakpoints.\n\
|
Enable some breakpoints.\n\
|
Give breakpoint numbers (separated by spaces) as arguments.\n\
|
Give breakpoint numbers (separated by spaces) as arguments.\n\
|
With no subcommand, breakpoints are enabled until you command otherwise.\n\
|
With no subcommand, breakpoints are enabled until you command otherwise.\n\
|
This is used to cancel the effect of the \"disable\" command.\n\
|
This is used to cancel the effect of the \"disable\" command.\n\
|
With a subcommand you can enable temporarily."),
|
With a subcommand you can enable temporarily."),
|
&enablelist, "enable ", 1, &cmdlist);
|
&enablelist, "enable ", 1, &cmdlist);
|
if (xdb_commands)
|
if (xdb_commands)
|
add_com ("ab", class_breakpoint, enable_command, _("\
|
add_com ("ab", class_breakpoint, enable_command, _("\
|
Enable some breakpoints.\n\
|
Enable some breakpoints.\n\
|
Give breakpoint numbers (separated by spaces) as arguments.\n\
|
Give breakpoint numbers (separated by spaces) as arguments.\n\
|
With no subcommand, breakpoints are enabled until you command otherwise.\n\
|
With no subcommand, breakpoints are enabled until you command otherwise.\n\
|
This is used to cancel the effect of the \"disable\" command.\n\
|
This is used to cancel the effect of the \"disable\" command.\n\
|
With a subcommand you can enable temporarily."));
|
With a subcommand you can enable temporarily."));
|
|
|
add_com_alias ("en", "enable", class_breakpoint, 1);
|
add_com_alias ("en", "enable", class_breakpoint, 1);
|
|
|
add_abbrev_prefix_cmd ("breakpoints", class_breakpoint, enable_command, _("\
|
add_abbrev_prefix_cmd ("breakpoints", class_breakpoint, enable_command, _("\
|
Enable some breakpoints.\n\
|
Enable some breakpoints.\n\
|
Give breakpoint numbers (separated by spaces) as arguments.\n\
|
Give breakpoint numbers (separated by spaces) as arguments.\n\
|
This is used to cancel the effect of the \"disable\" command.\n\
|
This is used to cancel the effect of the \"disable\" command.\n\
|
May be abbreviated to simply \"enable\".\n"),
|
May be abbreviated to simply \"enable\".\n"),
|
&enablebreaklist, "enable breakpoints ", 1, &enablelist);
|
&enablebreaklist, "enable breakpoints ", 1, &enablelist);
|
|
|
add_cmd ("once", no_class, enable_once_command, _("\
|
add_cmd ("once", no_class, enable_once_command, _("\
|
Enable breakpoints for one hit. Give breakpoint numbers.\n\
|
Enable breakpoints for one hit. Give breakpoint numbers.\n\
|
If a breakpoint is hit while enabled in this fashion, it becomes disabled."),
|
If a breakpoint is hit while enabled in this fashion, it becomes disabled."),
|
&enablebreaklist);
|
&enablebreaklist);
|
|
|
add_cmd ("delete", no_class, enable_delete_command, _("\
|
add_cmd ("delete", no_class, enable_delete_command, _("\
|
Enable breakpoints and delete when hit. Give breakpoint numbers.\n\
|
Enable breakpoints and delete when hit. Give breakpoint numbers.\n\
|
If a breakpoint is hit while enabled in this fashion, it is deleted."),
|
If a breakpoint is hit while enabled in this fashion, it is deleted."),
|
&enablebreaklist);
|
&enablebreaklist);
|
|
|
add_cmd ("delete", no_class, enable_delete_command, _("\
|
add_cmd ("delete", no_class, enable_delete_command, _("\
|
Enable breakpoints and delete when hit. Give breakpoint numbers.\n\
|
Enable breakpoints and delete when hit. Give breakpoint numbers.\n\
|
If a breakpoint is hit while enabled in this fashion, it is deleted."),
|
If a breakpoint is hit while enabled in this fashion, it is deleted."),
|
&enablelist);
|
&enablelist);
|
|
|
add_cmd ("once", no_class, enable_once_command, _("\
|
add_cmd ("once", no_class, enable_once_command, _("\
|
Enable breakpoints for one hit. Give breakpoint numbers.\n\
|
Enable breakpoints for one hit. Give breakpoint numbers.\n\
|
If a breakpoint is hit while enabled in this fashion, it becomes disabled."),
|
If a breakpoint is hit while enabled in this fashion, it becomes disabled."),
|
&enablelist);
|
&enablelist);
|
|
|
add_prefix_cmd ("disable", class_breakpoint, disable_command, _("\
|
add_prefix_cmd ("disable", class_breakpoint, disable_command, _("\
|
Disable some breakpoints.\n\
|
Disable some breakpoints.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
To disable all breakpoints, give no argument.\n\
|
To disable all breakpoints, give no argument.\n\
|
A disabled breakpoint is not forgotten, but has no effect until reenabled."),
|
A disabled breakpoint is not forgotten, but has no effect until reenabled."),
|
&disablelist, "disable ", 1, &cmdlist);
|
&disablelist, "disable ", 1, &cmdlist);
|
add_com_alias ("dis", "disable", class_breakpoint, 1);
|
add_com_alias ("dis", "disable", class_breakpoint, 1);
|
add_com_alias ("disa", "disable", class_breakpoint, 1);
|
add_com_alias ("disa", "disable", class_breakpoint, 1);
|
if (xdb_commands)
|
if (xdb_commands)
|
add_com ("sb", class_breakpoint, disable_command, _("\
|
add_com ("sb", class_breakpoint, disable_command, _("\
|
Disable some breakpoints.\n\
|
Disable some breakpoints.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
To disable all breakpoints, give no argument.\n\
|
To disable all breakpoints, give no argument.\n\
|
A disabled breakpoint is not forgotten, but has no effect until reenabled."));
|
A disabled breakpoint is not forgotten, but has no effect until reenabled."));
|
|
|
add_cmd ("breakpoints", class_alias, disable_command, _("\
|
add_cmd ("breakpoints", class_alias, disable_command, _("\
|
Disable some breakpoints.\n\
|
Disable some breakpoints.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
To disable all breakpoints, give no argument.\n\
|
To disable all breakpoints, give no argument.\n\
|
A disabled breakpoint is not forgotten, but has no effect until reenabled.\n\
|
A disabled breakpoint is not forgotten, but has no effect until reenabled.\n\
|
This command may be abbreviated \"disable\"."),
|
This command may be abbreviated \"disable\"."),
|
&disablelist);
|
&disablelist);
|
|
|
add_prefix_cmd ("delete", class_breakpoint, delete_command, _("\
|
add_prefix_cmd ("delete", class_breakpoint, delete_command, _("\
|
Delete some breakpoints or auto-display expressions.\n\
|
Delete some breakpoints or auto-display expressions.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
To delete all breakpoints, give no argument.\n\
|
To delete all breakpoints, give no argument.\n\
|
\n\
|
\n\
|
Also a prefix command for deletion of other GDB objects.\n\
|
Also a prefix command for deletion of other GDB objects.\n\
|
The \"unset\" command is also an alias for \"delete\"."),
|
The \"unset\" command is also an alias for \"delete\"."),
|
&deletelist, "delete ", 1, &cmdlist);
|
&deletelist, "delete ", 1, &cmdlist);
|
add_com_alias ("d", "delete", class_breakpoint, 1);
|
add_com_alias ("d", "delete", class_breakpoint, 1);
|
add_com_alias ("del", "delete", class_breakpoint, 1);
|
add_com_alias ("del", "delete", class_breakpoint, 1);
|
if (xdb_commands)
|
if (xdb_commands)
|
add_com ("db", class_breakpoint, delete_command, _("\
|
add_com ("db", class_breakpoint, delete_command, _("\
|
Delete some breakpoints.\n\
|
Delete some breakpoints.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
To delete all breakpoints, give no argument.\n"));
|
To delete all breakpoints, give no argument.\n"));
|
|
|
add_cmd ("breakpoints", class_alias, delete_command, _("\
|
add_cmd ("breakpoints", class_alias, delete_command, _("\
|
Delete some breakpoints or auto-display expressions.\n\
|
Delete some breakpoints or auto-display expressions.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
Arguments are breakpoint numbers with spaces in between.\n\
|
To delete all breakpoints, give no argument.\n\
|
To delete all breakpoints, give no argument.\n\
|
This command may be abbreviated \"delete\"."),
|
This command may be abbreviated \"delete\"."),
|
&deletelist);
|
&deletelist);
|
|
|
add_com ("clear", class_breakpoint, clear_command, _("\
|
add_com ("clear", class_breakpoint, clear_command, _("\
|
Clear breakpoint at specified line or function.\n\
|
Clear breakpoint at specified line or function.\n\
|
Argument may be line number, function name, or \"*\" and an address.\n\
|
Argument may be line number, function name, or \"*\" and an address.\n\
|
If line number is specified, all breakpoints in that line are cleared.\n\
|
If line number is specified, all breakpoints in that line are cleared.\n\
|
If function is specified, breakpoints at beginning of function are cleared.\n\
|
If function is specified, breakpoints at beginning of function are cleared.\n\
|
If an address is specified, breakpoints at that address are cleared.\n\
|
If an address is specified, breakpoints at that address are cleared.\n\
|
\n\
|
\n\
|
With no argument, clears all breakpoints in the line that the selected frame\n\
|
With no argument, clears all breakpoints in the line that the selected frame\n\
|
is executing in.\n\
|
is executing in.\n\
|
\n\
|
\n\
|
See also the \"delete\" command which clears breakpoints by number."));
|
See also the \"delete\" command which clears breakpoints by number."));
|
|
|
c = add_com ("break", class_breakpoint, break_command, _("\
|
c = add_com ("break", class_breakpoint, break_command, _("\
|
Set breakpoint at specified line or function.\n"
|
Set breakpoint at specified line or function.\n"
|
BREAK_ARGS_HELP ("break")));
|
BREAK_ARGS_HELP ("break")));
|
set_cmd_completer (c, location_completer);
|
set_cmd_completer (c, location_completer);
|
|
|
add_com_alias ("b", "break", class_run, 1);
|
add_com_alias ("b", "break", class_run, 1);
|
add_com_alias ("br", "break", class_run, 1);
|
add_com_alias ("br", "break", class_run, 1);
|
add_com_alias ("bre", "break", class_run, 1);
|
add_com_alias ("bre", "break", class_run, 1);
|
add_com_alias ("brea", "break", class_run, 1);
|
add_com_alias ("brea", "break", class_run, 1);
|
|
|
if (xdb_commands)
|
if (xdb_commands)
|
add_com_alias ("ba", "break", class_breakpoint, 1);
|
add_com_alias ("ba", "break", class_breakpoint, 1);
|
|
|
if (dbx_commands)
|
if (dbx_commands)
|
{
|
{
|
add_abbrev_prefix_cmd ("stop", class_breakpoint, stop_command, _("\
|
add_abbrev_prefix_cmd ("stop", class_breakpoint, stop_command, _("\
|
Break in function/address or break at a line in the current file."),
|
Break in function/address or break at a line in the current file."),
|
&stoplist, "stop ", 1, &cmdlist);
|
&stoplist, "stop ", 1, &cmdlist);
|
add_cmd ("in", class_breakpoint, stopin_command,
|
add_cmd ("in", class_breakpoint, stopin_command,
|
_("Break in function or address."), &stoplist);
|
_("Break in function or address."), &stoplist);
|
add_cmd ("at", class_breakpoint, stopat_command,
|
add_cmd ("at", class_breakpoint, stopat_command,
|
_("Break at a line in the current file."), &stoplist);
|
_("Break at a line in the current file."), &stoplist);
|
add_com ("status", class_info, breakpoints_info, _("\
|
add_com ("status", class_info, breakpoints_info, _("\
|
Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
|
Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
|
The \"Type\" column indicates one of:\n\
|
The \"Type\" column indicates one of:\n\
|
\tbreakpoint - normal breakpoint\n\
|
\tbreakpoint - normal breakpoint\n\
|
\twatchpoint - watchpoint\n\
|
\twatchpoint - watchpoint\n\
|
The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
|
The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
|
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
|
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
|
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
|
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
|
address and file/line number respectively.\n\
|
address and file/line number respectively.\n\
|
\n\
|
\n\
|
Convenience variable \"$_\" and default examine address for \"x\"\n\
|
Convenience variable \"$_\" and default examine address for \"x\"\n\
|
are set to the address of the last breakpoint listed unless the command\n\
|
are set to the address of the last breakpoint listed unless the command\n\
|
is prefixed with \"server \".\n\n\
|
is prefixed with \"server \".\n\n\
|
Convenience variable \"$bpnum\" contains the number of the last\n\
|
Convenience variable \"$bpnum\" contains the number of the last\n\
|
breakpoint set."));
|
breakpoint set."));
|
}
|
}
|
|
|
add_info ("breakpoints", breakpoints_info, _("\
|
add_info ("breakpoints", breakpoints_info, _("\
|
Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
|
Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
|
The \"Type\" column indicates one of:\n\
|
The \"Type\" column indicates one of:\n\
|
\tbreakpoint - normal breakpoint\n\
|
\tbreakpoint - normal breakpoint\n\
|
\twatchpoint - watchpoint\n\
|
\twatchpoint - watchpoint\n\
|
The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
|
The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
|
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
|
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
|
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
|
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
|
address and file/line number respectively.\n\
|
address and file/line number respectively.\n\
|
\n\
|
\n\
|
Convenience variable \"$_\" and default examine address for \"x\"\n\
|
Convenience variable \"$_\" and default examine address for \"x\"\n\
|
are set to the address of the last breakpoint listed unless the command\n\
|
are set to the address of the last breakpoint listed unless the command\n\
|
is prefixed with \"server \".\n\n\
|
is prefixed with \"server \".\n\n\
|
Convenience variable \"$bpnum\" contains the number of the last\n\
|
Convenience variable \"$bpnum\" contains the number of the last\n\
|
breakpoint set."));
|
breakpoint set."));
|
|
|
add_info_alias ("b", "breakpoints", 1);
|
add_info_alias ("b", "breakpoints", 1);
|
|
|
if (xdb_commands)
|
if (xdb_commands)
|
add_com ("lb", class_breakpoint, breakpoints_info, _("\
|
add_com ("lb", class_breakpoint, breakpoints_info, _("\
|
Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
|
Status of user-settable breakpoints, or breakpoint number NUMBER.\n\
|
The \"Type\" column indicates one of:\n\
|
The \"Type\" column indicates one of:\n\
|
\tbreakpoint - normal breakpoint\n\
|
\tbreakpoint - normal breakpoint\n\
|
\twatchpoint - watchpoint\n\
|
\twatchpoint - watchpoint\n\
|
The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
|
The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
|
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
|
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
|
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
|
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
|
address and file/line number respectively.\n\
|
address and file/line number respectively.\n\
|
\n\
|
\n\
|
Convenience variable \"$_\" and default examine address for \"x\"\n\
|
Convenience variable \"$_\" and default examine address for \"x\"\n\
|
are set to the address of the last breakpoint listed unless the command\n\
|
are set to the address of the last breakpoint listed unless the command\n\
|
is prefixed with \"server \".\n\n\
|
is prefixed with \"server \".\n\n\
|
Convenience variable \"$bpnum\" contains the number of the last\n\
|
Convenience variable \"$bpnum\" contains the number of the last\n\
|
breakpoint set."));
|
breakpoint set."));
|
|
|
add_cmd ("breakpoints", class_maintenance, maintenance_info_breakpoints, _("\
|
add_cmd ("breakpoints", class_maintenance, maintenance_info_breakpoints, _("\
|
Status of all breakpoints, or breakpoint number NUMBER.\n\
|
Status of all breakpoints, or breakpoint number NUMBER.\n\
|
The \"Type\" column indicates one of:\n\
|
The \"Type\" column indicates one of:\n\
|
\tbreakpoint - normal breakpoint\n\
|
\tbreakpoint - normal breakpoint\n\
|
\twatchpoint - watchpoint\n\
|
\twatchpoint - watchpoint\n\
|
\tlongjmp - internal breakpoint used to step through longjmp()\n\
|
\tlongjmp - internal breakpoint used to step through longjmp()\n\
|
\tlongjmp resume - internal breakpoint at the target of longjmp()\n\
|
\tlongjmp resume - internal breakpoint at the target of longjmp()\n\
|
\tuntil - internal breakpoint used by the \"until\" command\n\
|
\tuntil - internal breakpoint used by the \"until\" command\n\
|
\tfinish - internal breakpoint used by the \"finish\" command\n\
|
\tfinish - internal breakpoint used by the \"finish\" command\n\
|
The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
|
The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\
|
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
|
the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\
|
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
|
breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\
|
address and file/line number respectively.\n\
|
address and file/line number respectively.\n\
|
\n\
|
\n\
|
Convenience variable \"$_\" and default examine address for \"x\"\n\
|
Convenience variable \"$_\" and default examine address for \"x\"\n\
|
are set to the address of the last breakpoint listed unless the command\n\
|
are set to the address of the last breakpoint listed unless the command\n\
|
is prefixed with \"server \".\n\n\
|
is prefixed with \"server \".\n\n\
|
Convenience variable \"$bpnum\" contains the number of the last\n\
|
Convenience variable \"$bpnum\" contains the number of the last\n\
|
breakpoint set."),
|
breakpoint set."),
|
&maintenanceinfolist);
|
&maintenanceinfolist);
|
|
|
add_prefix_cmd ("catch", class_breakpoint, catch_command, _("\
|
add_prefix_cmd ("catch", class_breakpoint, catch_command, _("\
|
Set catchpoints to catch events."),
|
Set catchpoints to catch events."),
|
&catch_cmdlist, "catch ",
|
&catch_cmdlist, "catch ",
|
0/*allow-unknown*/, &cmdlist);
|
0/*allow-unknown*/, &cmdlist);
|
|
|
add_prefix_cmd ("tcatch", class_breakpoint, tcatch_command, _("\
|
add_prefix_cmd ("tcatch", class_breakpoint, tcatch_command, _("\
|
Set temporary catchpoints to catch events."),
|
Set temporary catchpoints to catch events."),
|
&tcatch_cmdlist, "tcatch ",
|
&tcatch_cmdlist, "tcatch ",
|
0/*allow-unknown*/, &cmdlist);
|
0/*allow-unknown*/, &cmdlist);
|
|
|
/* Add catch and tcatch sub-commands. */
|
/* Add catch and tcatch sub-commands. */
|
add_catch_command ("catch", _("\
|
add_catch_command ("catch", _("\
|
Catch an exception, when caught.\n\
|
Catch an exception, when caught.\n\
|
With an argument, catch only exceptions with the given name."),
|
With an argument, catch only exceptions with the given name."),
|
catch_catch_command,
|
catch_catch_command,
|
NULL,
|
NULL,
|
CATCH_PERMANENT,
|
CATCH_PERMANENT,
|
CATCH_TEMPORARY);
|
CATCH_TEMPORARY);
|
add_catch_command ("throw", _("\
|
add_catch_command ("throw", _("\
|
Catch an exception, when thrown.\n\
|
Catch an exception, when thrown.\n\
|
With an argument, catch only exceptions with the given name."),
|
With an argument, catch only exceptions with the given name."),
|
catch_throw_command,
|
catch_throw_command,
|
NULL,
|
NULL,
|
CATCH_PERMANENT,
|
CATCH_PERMANENT,
|
CATCH_TEMPORARY);
|
CATCH_TEMPORARY);
|
add_catch_command ("fork", _("Catch calls to fork."),
|
add_catch_command ("fork", _("Catch calls to fork."),
|
catch_fork_command_1,
|
catch_fork_command_1,
|
NULL,
|
NULL,
|
(void *) (uintptr_t) catch_fork_permanent,
|
(void *) (uintptr_t) catch_fork_permanent,
|
(void *) (uintptr_t) catch_fork_temporary);
|
(void *) (uintptr_t) catch_fork_temporary);
|
add_catch_command ("vfork", _("Catch calls to vfork."),
|
add_catch_command ("vfork", _("Catch calls to vfork."),
|
catch_fork_command_1,
|
catch_fork_command_1,
|
NULL,
|
NULL,
|
(void *) (uintptr_t) catch_vfork_permanent,
|
(void *) (uintptr_t) catch_vfork_permanent,
|
(void *) (uintptr_t) catch_vfork_temporary);
|
(void *) (uintptr_t) catch_vfork_temporary);
|
add_catch_command ("exec", _("Catch calls to exec."),
|
add_catch_command ("exec", _("Catch calls to exec."),
|
catch_exec_command_1,
|
catch_exec_command_1,
|
NULL,
|
NULL,
|
CATCH_PERMANENT,
|
CATCH_PERMANENT,
|
CATCH_TEMPORARY);
|
CATCH_TEMPORARY);
|
add_catch_command ("syscall", _("\
|
add_catch_command ("syscall", _("\
|
Catch system calls by their names and/or numbers.\n\
|
Catch system calls by their names and/or numbers.\n\
|
Arguments say which system calls to catch. If no arguments\n\
|
Arguments say which system calls to catch. If no arguments\n\
|
are given, every system call will be caught.\n\
|
are given, every system call will be caught.\n\
|
Arguments, if given, should be one or more system call names\n\
|
Arguments, if given, should be one or more system call names\n\
|
(if your system supports that), or system call numbers."),
|
(if your system supports that), or system call numbers."),
|
catch_syscall_command_1,
|
catch_syscall_command_1,
|
catch_syscall_completer,
|
catch_syscall_completer,
|
CATCH_PERMANENT,
|
CATCH_PERMANENT,
|
CATCH_TEMPORARY);
|
CATCH_TEMPORARY);
|
add_catch_command ("exception", _("\
|
add_catch_command ("exception", _("\
|
Catch Ada exceptions, when raised.\n\
|
Catch Ada exceptions, when raised.\n\
|
With an argument, catch only exceptions with the given name."),
|
With an argument, catch only exceptions with the given name."),
|
catch_ada_exception_command,
|
catch_ada_exception_command,
|
NULL,
|
NULL,
|
CATCH_PERMANENT,
|
CATCH_PERMANENT,
|
CATCH_TEMPORARY);
|
CATCH_TEMPORARY);
|
add_catch_command ("assert", _("\
|
add_catch_command ("assert", _("\
|
Catch failed Ada assertions, when raised.\n\
|
Catch failed Ada assertions, when raised.\n\
|
With an argument, catch only exceptions with the given name."),
|
With an argument, catch only exceptions with the given name."),
|
catch_assert_command,
|
catch_assert_command,
|
NULL,
|
NULL,
|
CATCH_PERMANENT,
|
CATCH_PERMANENT,
|
CATCH_TEMPORARY);
|
CATCH_TEMPORARY);
|
|
|
c = add_com ("watch", class_breakpoint, watch_command, _("\
|
c = add_com ("watch", class_breakpoint, watch_command, _("\
|
Set a watchpoint for an expression.\n\
|
Set a watchpoint for an expression.\n\
|
A watchpoint stops execution of your program whenever the value of\n\
|
A watchpoint stops execution of your program whenever the value of\n\
|
an expression changes."));
|
an expression changes."));
|
set_cmd_completer (c, expression_completer);
|
set_cmd_completer (c, expression_completer);
|
|
|
c = add_com ("rwatch", class_breakpoint, rwatch_command, _("\
|
c = add_com ("rwatch", class_breakpoint, rwatch_command, _("\
|
Set a read watchpoint for an expression.\n\
|
Set a read watchpoint for an expression.\n\
|
A watchpoint stops execution of your program whenever the value of\n\
|
A watchpoint stops execution of your program whenever the value of\n\
|
an expression is read."));
|
an expression is read."));
|
set_cmd_completer (c, expression_completer);
|
set_cmd_completer (c, expression_completer);
|
|
|
c = add_com ("awatch", class_breakpoint, awatch_command, _("\
|
c = add_com ("awatch", class_breakpoint, awatch_command, _("\
|
Set a watchpoint for an expression.\n\
|
Set a watchpoint for an expression.\n\
|
A watchpoint stops execution of your program whenever the value of\n\
|
A watchpoint stops execution of your program whenever the value of\n\
|
an expression is either read or written."));
|
an expression is either read or written."));
|
set_cmd_completer (c, expression_completer);
|
set_cmd_completer (c, expression_completer);
|
|
|
add_info ("watchpoints", breakpoints_info,
|
add_info ("watchpoints", breakpoints_info,
|
_("Synonym for ``info breakpoints''."));
|
_("Synonym for ``info breakpoints''."));
|
|
|
|
|
/* XXX: cagney/2005-02-23: This should be a boolean, and should
|
/* XXX: cagney/2005-02-23: This should be a boolean, and should
|
respond to changes - contrary to the description. */
|
respond to changes - contrary to the description. */
|
add_setshow_zinteger_cmd ("can-use-hw-watchpoints", class_support,
|
add_setshow_zinteger_cmd ("can-use-hw-watchpoints", class_support,
|
&can_use_hw_watchpoints, _("\
|
&can_use_hw_watchpoints, _("\
|
Set debugger's willingness to use watchpoint hardware."), _("\
|
Set debugger's willingness to use watchpoint hardware."), _("\
|
Show debugger's willingness to use watchpoint hardware."), _("\
|
Show debugger's willingness to use watchpoint hardware."), _("\
|
If zero, gdb will not use hardware for new watchpoints, even if\n\
|
If zero, gdb will not use hardware for new watchpoints, even if\n\
|
such is available. (However, any hardware watchpoints that were\n\
|
such is available. (However, any hardware watchpoints that were\n\
|
created before setting this to nonzero, will continue to use watchpoint\n\
|
created before setting this to nonzero, will continue to use watchpoint\n\
|
hardware.)"),
|
hardware.)"),
|
NULL,
|
NULL,
|
show_can_use_hw_watchpoints,
|
show_can_use_hw_watchpoints,
|
&setlist, &showlist);
|
&setlist, &showlist);
|
|
|
can_use_hw_watchpoints = 1;
|
can_use_hw_watchpoints = 1;
|
|
|
/* Tracepoint manipulation commands. */
|
/* Tracepoint manipulation commands. */
|
|
|
c = add_com ("trace", class_breakpoint, trace_command, _("\
|
c = add_com ("trace", class_breakpoint, trace_command, _("\
|
Set a tracepoint at specified line or function.\n\
|
Set a tracepoint at specified line or function.\n\
|
\n"
|
\n"
|
BREAK_ARGS_HELP ("trace") "\n\
|
BREAK_ARGS_HELP ("trace") "\n\
|
Do \"help tracepoints\" for info on other tracepoint commands."));
|
Do \"help tracepoints\" for info on other tracepoint commands."));
|
set_cmd_completer (c, location_completer);
|
set_cmd_completer (c, location_completer);
|
|
|
add_com_alias ("tp", "trace", class_alias, 0);
|
add_com_alias ("tp", "trace", class_alias, 0);
|
add_com_alias ("tr", "trace", class_alias, 1);
|
add_com_alias ("tr", "trace", class_alias, 1);
|
add_com_alias ("tra", "trace", class_alias, 1);
|
add_com_alias ("tra", "trace", class_alias, 1);
|
add_com_alias ("trac", "trace", class_alias, 1);
|
add_com_alias ("trac", "trace", class_alias, 1);
|
|
|
c = add_com ("ftrace", class_breakpoint, ftrace_command, _("\
|
c = add_com ("ftrace", class_breakpoint, ftrace_command, _("\
|
Set a fast tracepoint at specified line or function.\n\
|
Set a fast tracepoint at specified line or function.\n\
|
\n"
|
\n"
|
BREAK_ARGS_HELP ("ftrace") "\n\
|
BREAK_ARGS_HELP ("ftrace") "\n\
|
Do \"help tracepoints\" for info on other tracepoint commands."));
|
Do \"help tracepoints\" for info on other tracepoint commands."));
|
set_cmd_completer (c, location_completer);
|
set_cmd_completer (c, location_completer);
|
|
|
add_info ("tracepoints", tracepoints_info, _("\
|
add_info ("tracepoints", tracepoints_info, _("\
|
Status of tracepoints, or tracepoint number NUMBER.\n\
|
Status of tracepoints, or tracepoint number NUMBER.\n\
|
Convenience variable \"$tpnum\" contains the number of the\n\
|
Convenience variable \"$tpnum\" contains the number of the\n\
|
last tracepoint set."));
|
last tracepoint set."));
|
|
|
add_info_alias ("tp", "tracepoints", 1);
|
add_info_alias ("tp", "tracepoints", 1);
|
|
|
add_cmd ("tracepoints", class_trace, delete_trace_command, _("\
|
add_cmd ("tracepoints", class_trace, delete_trace_command, _("\
|
Delete specified tracepoints.\n\
|
Delete specified tracepoints.\n\
|
Arguments are tracepoint numbers, separated by spaces.\n\
|
Arguments are tracepoint numbers, separated by spaces.\n\
|
No argument means delete all tracepoints."),
|
No argument means delete all tracepoints."),
|
&deletelist);
|
&deletelist);
|
|
|
c = add_cmd ("tracepoints", class_trace, disable_trace_command, _("\
|
c = add_cmd ("tracepoints", class_trace, disable_trace_command, _("\
|
Disable specified tracepoints.\n\
|
Disable specified tracepoints.\n\
|
Arguments are tracepoint numbers, separated by spaces.\n\
|
Arguments are tracepoint numbers, separated by spaces.\n\
|
No argument means disable all tracepoints."),
|
No argument means disable all tracepoints."),
|
&disablelist);
|
&disablelist);
|
deprecate_cmd (c, "disable");
|
deprecate_cmd (c, "disable");
|
|
|
c = add_cmd ("tracepoints", class_trace, enable_trace_command, _("\
|
c = add_cmd ("tracepoints", class_trace, enable_trace_command, _("\
|
Enable specified tracepoints.\n\
|
Enable specified tracepoints.\n\
|
Arguments are tracepoint numbers, separated by spaces.\n\
|
Arguments are tracepoint numbers, separated by spaces.\n\
|
No argument means enable all tracepoints."),
|
No argument means enable all tracepoints."),
|
&enablelist);
|
&enablelist);
|
deprecate_cmd (c, "enable");
|
deprecate_cmd (c, "enable");
|
|
|
add_com ("passcount", class_trace, trace_pass_command, _("\
|
add_com ("passcount", class_trace, trace_pass_command, _("\
|
Set the passcount for a tracepoint.\n\
|
Set the passcount for a tracepoint.\n\
|
The trace will end when the tracepoint has been passed 'count' times.\n\
|
The trace will end when the tracepoint has been passed 'count' times.\n\
|
Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\
|
Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\
|
if TPNUM is omitted, passcount refers to the last tracepoint defined."));
|
if TPNUM is omitted, passcount refers to the last tracepoint defined."));
|
|
|
c = add_com ("save-tracepoints", class_trace, tracepoint_save_command, _("\
|
c = add_com ("save-tracepoints", class_trace, tracepoint_save_command, _("\
|
Save current tracepoint definitions as a script.\n\
|
Save current tracepoint definitions as a script.\n\
|
Use the 'source' command in another debug session to restore them."));
|
Use the 'source' command in another debug session to restore them."));
|
set_cmd_completer (c, filename_completer);
|
set_cmd_completer (c, filename_completer);
|
|
|
add_prefix_cmd ("breakpoint", class_maintenance, set_breakpoint_cmd, _("\
|
add_prefix_cmd ("breakpoint", class_maintenance, set_breakpoint_cmd, _("\
|
Breakpoint specific settings\n\
|
Breakpoint specific settings\n\
|
Configure various breakpoint-specific variables such as\n\
|
Configure various breakpoint-specific variables such as\n\
|
pending breakpoint behavior"),
|
pending breakpoint behavior"),
|
&breakpoint_set_cmdlist, "set breakpoint ",
|
&breakpoint_set_cmdlist, "set breakpoint ",
|
0/*allow-unknown*/, &setlist);
|
0/*allow-unknown*/, &setlist);
|
add_prefix_cmd ("breakpoint", class_maintenance, show_breakpoint_cmd, _("\
|
add_prefix_cmd ("breakpoint", class_maintenance, show_breakpoint_cmd, _("\
|
Breakpoint specific settings\n\
|
Breakpoint specific settings\n\
|
Configure various breakpoint-specific variables such as\n\
|
Configure various breakpoint-specific variables such as\n\
|
pending breakpoint behavior"),
|
pending breakpoint behavior"),
|
&breakpoint_show_cmdlist, "show breakpoint ",
|
&breakpoint_show_cmdlist, "show breakpoint ",
|
0/*allow-unknown*/, &showlist);
|
0/*allow-unknown*/, &showlist);
|
|
|
add_setshow_auto_boolean_cmd ("pending", no_class,
|
add_setshow_auto_boolean_cmd ("pending", no_class,
|
&pending_break_support, _("\
|
&pending_break_support, _("\
|
Set debugger's behavior regarding pending breakpoints."), _("\
|
Set debugger's behavior regarding pending breakpoints."), _("\
|
Show debugger's behavior regarding pending breakpoints."), _("\
|
Show debugger's behavior regarding pending breakpoints."), _("\
|
If on, an unrecognized breakpoint location will cause gdb to create a\n\
|
If on, an unrecognized breakpoint location will cause gdb to create a\n\
|
pending breakpoint. If off, an unrecognized breakpoint location results in\n\
|
pending breakpoint. If off, an unrecognized breakpoint location results in\n\
|
an error. If auto, an unrecognized breakpoint location results in a\n\
|
an error. If auto, an unrecognized breakpoint location results in a\n\
|
user-query to see if a pending breakpoint should be created."),
|
user-query to see if a pending breakpoint should be created."),
|
NULL,
|
NULL,
|
show_pending_break_support,
|
show_pending_break_support,
|
&breakpoint_set_cmdlist,
|
&breakpoint_set_cmdlist,
|
&breakpoint_show_cmdlist);
|
&breakpoint_show_cmdlist);
|
|
|
pending_break_support = AUTO_BOOLEAN_AUTO;
|
pending_break_support = AUTO_BOOLEAN_AUTO;
|
|
|
add_setshow_boolean_cmd ("auto-hw", no_class,
|
add_setshow_boolean_cmd ("auto-hw", no_class,
|
&automatic_hardware_breakpoints, _("\
|
&automatic_hardware_breakpoints, _("\
|
Set automatic usage of hardware breakpoints."), _("\
|
Set automatic usage of hardware breakpoints."), _("\
|
Show automatic usage of hardware breakpoints."), _("\
|
Show automatic usage of hardware breakpoints."), _("\
|
If set, the debugger will automatically use hardware breakpoints for\n\
|
If set, the debugger will automatically use hardware breakpoints for\n\
|
breakpoints set with \"break\" but falling in read-only memory. If not set,\n\
|
breakpoints set with \"break\" but falling in read-only memory. If not set,\n\
|
a warning will be emitted for such breakpoints."),
|
a warning will be emitted for such breakpoints."),
|
NULL,
|
NULL,
|
show_automatic_hardware_breakpoints,
|
show_automatic_hardware_breakpoints,
|
&breakpoint_set_cmdlist,
|
&breakpoint_set_cmdlist,
|
&breakpoint_show_cmdlist);
|
&breakpoint_show_cmdlist);
|
|
|
add_setshow_enum_cmd ("always-inserted", class_support,
|
add_setshow_enum_cmd ("always-inserted", class_support,
|
always_inserted_enums, &always_inserted_mode, _("\
|
always_inserted_enums, &always_inserted_mode, _("\
|
Set mode for inserting breakpoints."), _("\
|
Set mode for inserting breakpoints."), _("\
|
Show mode for inserting breakpoints."), _("\
|
Show mode for inserting breakpoints."), _("\
|
When this mode is off, breakpoints are inserted in inferior when it is\n\
|
When this mode is off, breakpoints are inserted in inferior when it is\n\
|
resumed, and removed when execution stops. When this mode is on,\n\
|
resumed, and removed when execution stops. When this mode is on,\n\
|
breakpoints are inserted immediately and removed only when the user\n\
|
breakpoints are inserted immediately and removed only when the user\n\
|
deletes the breakpoint. When this mode is auto (which is the default),\n\
|
deletes the breakpoint. When this mode is auto (which is the default),\n\
|
the behaviour depends on the non-stop setting (see help set non-stop).\n\
|
the behaviour depends on the non-stop setting (see help set non-stop).\n\
|
In this case, if gdb is controlling the inferior in non-stop mode, gdb\n\
|
In this case, if gdb is controlling the inferior in non-stop mode, gdb\n\
|
behaves as if always-inserted mode is on; if gdb is controlling the\n\
|
behaves as if always-inserted mode is on; if gdb is controlling the\n\
|
inferior in all-stop mode, gdb behaves as if always-inserted mode is off."),
|
inferior in all-stop mode, gdb behaves as if always-inserted mode is off."),
|
NULL,
|
NULL,
|
&show_always_inserted_mode,
|
&show_always_inserted_mode,
|
&breakpoint_set_cmdlist,
|
&breakpoint_set_cmdlist,
|
&breakpoint_show_cmdlist);
|
&breakpoint_show_cmdlist);
|
|
|
automatic_hardware_breakpoints = 1;
|
automatic_hardware_breakpoints = 1;
|
|
|
observer_attach_about_to_proceed (breakpoint_about_to_proceed);
|
observer_attach_about_to_proceed (breakpoint_about_to_proceed);
|
}
|
}
|
|
|
