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jeremybenn |
/* Select target systems and architectures at runtime for GDB.
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Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
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2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
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Free Software Foundation, Inc.
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Contributed by Cygnus Support.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include <errno.h>
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#include "gdb_string.h"
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#include "target.h"
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#include "gdbcmd.h"
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#include "symtab.h"
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#include "inferior.h"
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#include "bfd.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "gdb_wait.h"
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#include "dcache.h"
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#include <signal.h>
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#include "regcache.h"
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#include "gdb_assert.h"
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#include "gdbcore.h"
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#include "exceptions.h"
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#include "target-descriptions.h"
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#include "gdbthread.h"
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#include "solib.h"
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#include "exec.h"
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#include "inline-frame.h"
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#include "tracepoint.h"
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static void target_info (char *, int);
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static void default_terminal_info (char *, int);
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static int default_watchpoint_addr_within_range (struct target_ops *,
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CORE_ADDR, CORE_ADDR, int);
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static int default_region_ok_for_hw_watchpoint (CORE_ADDR, int);
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static int nosymbol (char *, CORE_ADDR *);
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static void tcomplain (void) ATTR_NORETURN;
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static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *);
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static int return_zero (void);
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static int return_one (void);
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static int return_minus_one (void);
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void target_ignore (void);
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static void target_command (char *, int);
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static struct target_ops *find_default_run_target (char *);
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static LONGEST default_xfer_partial (struct target_ops *ops,
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enum target_object object,
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const char *annex, gdb_byte *readbuf,
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const gdb_byte *writebuf,
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ULONGEST offset, LONGEST len);
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static LONGEST current_xfer_partial (struct target_ops *ops,
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enum target_object object,
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const char *annex, gdb_byte *readbuf,
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const gdb_byte *writebuf,
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ULONGEST offset, LONGEST len);
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static LONGEST target_xfer_partial (struct target_ops *ops,
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enum target_object object,
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const char *annex,
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void *readbuf, const void *writebuf,
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ULONGEST offset, LONGEST len);
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static struct gdbarch *default_thread_architecture (struct target_ops *ops,
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ptid_t ptid);
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static void init_dummy_target (void);
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static struct target_ops debug_target;
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static void debug_to_open (char *, int);
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static void debug_to_prepare_to_store (struct regcache *);
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static void debug_to_files_info (struct target_ops *);
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static int debug_to_insert_breakpoint (struct gdbarch *,
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struct bp_target_info *);
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static int debug_to_remove_breakpoint (struct gdbarch *,
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struct bp_target_info *);
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static int debug_to_can_use_hw_breakpoint (int, int, int);
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static int debug_to_insert_hw_breakpoint (struct gdbarch *,
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struct bp_target_info *);
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static int debug_to_remove_hw_breakpoint (struct gdbarch *,
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struct bp_target_info *);
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static int debug_to_insert_watchpoint (CORE_ADDR, int, int);
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static int debug_to_remove_watchpoint (CORE_ADDR, int, int);
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static int debug_to_stopped_by_watchpoint (void);
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static int debug_to_stopped_data_address (struct target_ops *, CORE_ADDR *);
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static int debug_to_watchpoint_addr_within_range (struct target_ops *,
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CORE_ADDR, CORE_ADDR, int);
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static int debug_to_region_ok_for_hw_watchpoint (CORE_ADDR, int);
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static void debug_to_terminal_init (void);
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static void debug_to_terminal_inferior (void);
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static void debug_to_terminal_ours_for_output (void);
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static void debug_to_terminal_save_ours (void);
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static void debug_to_terminal_ours (void);
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static void debug_to_terminal_info (char *, int);
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static void debug_to_load (char *, int);
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static int debug_to_lookup_symbol (char *, CORE_ADDR *);
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static int debug_to_can_run (void);
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static void debug_to_notice_signals (ptid_t);
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static void debug_to_stop (ptid_t);
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/* NOTE: cagney/2004-09-29: Many targets reference this variable in
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wierd and mysterious ways. Putting the variable here lets those
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wierd and mysterious ways keep building while they are being
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converted to the inferior inheritance structure. */
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struct target_ops deprecated_child_ops;
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/* Pointer to array of target architecture structures; the size of the
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array; the current index into the array; the allocated size of the
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array. */
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struct target_ops **target_structs;
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unsigned target_struct_size;
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unsigned target_struct_index;
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unsigned target_struct_allocsize;
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#define DEFAULT_ALLOCSIZE 10
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/* The initial current target, so that there is always a semi-valid
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current target. */
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static struct target_ops dummy_target;
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/* Top of target stack. */
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static struct target_ops *target_stack;
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/* The target structure we are currently using to talk to a process
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or file or whatever "inferior" we have. */
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struct target_ops current_target;
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/* Command list for target. */
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static struct cmd_list_element *targetlist = NULL;
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/* Nonzero if we should trust readonly sections from the
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executable when reading memory. */
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static int trust_readonly = 0;
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/* Nonzero if we should show true memory content including
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memory breakpoint inserted by gdb. */
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static int show_memory_breakpoints = 0;
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/* Non-zero if we want to see trace of target level stuff. */
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static int targetdebug = 0;
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static void
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show_targetdebug (struct ui_file *file, int from_tty,
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struct cmd_list_element *c, const char *value)
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{
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fprintf_filtered (file, _("Target debugging is %s.\n"), value);
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}
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static void setup_target_debug (void);
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/* The option sets this. */
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static int stack_cache_enabled_p_1 = 1;
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/* And set_stack_cache_enabled_p updates this.
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The reason for the separation is so that we don't flush the cache for
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on->on transitions. */
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static int stack_cache_enabled_p = 1;
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/* This is called *after* the stack-cache has been set.
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Flush the cache for off->on and on->off transitions.
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There's no real need to flush the cache for on->off transitions,
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except cleanliness. */
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static void
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set_stack_cache_enabled_p (char *args, int from_tty,
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struct cmd_list_element *c)
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{
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if (stack_cache_enabled_p != stack_cache_enabled_p_1)
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target_dcache_invalidate ();
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stack_cache_enabled_p = stack_cache_enabled_p_1;
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}
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static void
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show_stack_cache_enabled_p (struct ui_file *file, int from_tty,
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struct cmd_list_element *c, const char *value)
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{
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fprintf_filtered (file, _("Cache use for stack accesses is %s.\n"), value);
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}
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/* Cache of memory operations, to speed up remote access. */
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static DCACHE *target_dcache;
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/* Invalidate the target dcache. */
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void
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target_dcache_invalidate (void)
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{
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dcache_invalidate (target_dcache);
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}
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/* The user just typed 'target' without the name of a target. */
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static void
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target_command (char *arg, int from_tty)
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{
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fputs_filtered ("Argument required (target name). Try `help target'\n",
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gdb_stdout);
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}
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/* Default target_has_* methods for process_stratum targets. */
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int
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default_child_has_all_memory (struct target_ops *ops)
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{
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/* If no inferior selected, then we can't read memory here. */
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if (ptid_equal (inferior_ptid, null_ptid))
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return 0;
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return 1;
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}
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int
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default_child_has_memory (struct target_ops *ops)
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{
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/* If no inferior selected, then we can't read memory here. */
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if (ptid_equal (inferior_ptid, null_ptid))
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return 0;
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return 1;
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}
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int
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default_child_has_stack (struct target_ops *ops)
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{
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/* If no inferior selected, there's no stack. */
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if (ptid_equal (inferior_ptid, null_ptid))
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return 0;
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return 1;
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}
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int
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default_child_has_registers (struct target_ops *ops)
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{
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/* Can't read registers from no inferior. */
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if (ptid_equal (inferior_ptid, null_ptid))
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return 0;
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return 1;
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}
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int
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default_child_has_execution (struct target_ops *ops)
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{
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/* If there's no thread selected, then we can't make it run through
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hoops. */
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if (ptid_equal (inferior_ptid, null_ptid))
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return 0;
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return 1;
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}
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int
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target_has_all_memory_1 (void)
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{
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struct target_ops *t;
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for (t = current_target.beneath; t != NULL; t = t->beneath)
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if (t->to_has_all_memory (t))
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return 1;
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return 0;
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}
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int
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target_has_memory_1 (void)
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{
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struct target_ops *t;
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for (t = current_target.beneath; t != NULL; t = t->beneath)
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if (t->to_has_memory (t))
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return 1;
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return 0;
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}
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int
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target_has_stack_1 (void)
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{
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struct target_ops *t;
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for (t = current_target.beneath; t != NULL; t = t->beneath)
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if (t->to_has_stack (t))
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return 1;
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return 0;
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}
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int
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target_has_registers_1 (void)
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{
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struct target_ops *t;
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for (t = current_target.beneath; t != NULL; t = t->beneath)
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if (t->to_has_registers (t))
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return 1;
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return 0;
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}
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int
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target_has_execution_1 (void)
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{
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struct target_ops *t;
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for (t = current_target.beneath; t != NULL; t = t->beneath)
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if (t->to_has_execution (t))
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return 1;
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return 0;
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}
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/* Add a possible target architecture to the list. */
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void
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add_target (struct target_ops *t)
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{
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/* Provide default values for all "must have" methods. */
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if (t->to_xfer_partial == NULL)
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t->to_xfer_partial = default_xfer_partial;
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381 |
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382 |
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|
if (t->to_has_all_memory == NULL)
|
383 |
|
|
t->to_has_all_memory = (int (*) (struct target_ops *)) return_zero;
|
384 |
|
|
|
385 |
|
|
if (t->to_has_memory == NULL)
|
386 |
|
|
t->to_has_memory = (int (*) (struct target_ops *)) return_zero;
|
387 |
|
|
|
388 |
|
|
if (t->to_has_stack == NULL)
|
389 |
|
|
t->to_has_stack = (int (*) (struct target_ops *)) return_zero;
|
390 |
|
|
|
391 |
|
|
if (t->to_has_registers == NULL)
|
392 |
|
|
t->to_has_registers = (int (*) (struct target_ops *)) return_zero;
|
393 |
|
|
|
394 |
|
|
if (t->to_has_execution == NULL)
|
395 |
|
|
t->to_has_execution = (int (*) (struct target_ops *)) return_zero;
|
396 |
|
|
|
397 |
|
|
if (!target_structs)
|
398 |
|
|
{
|
399 |
|
|
target_struct_allocsize = DEFAULT_ALLOCSIZE;
|
400 |
|
|
target_structs = (struct target_ops **) xmalloc
|
401 |
|
|
(target_struct_allocsize * sizeof (*target_structs));
|
402 |
|
|
}
|
403 |
|
|
if (target_struct_size >= target_struct_allocsize)
|
404 |
|
|
{
|
405 |
|
|
target_struct_allocsize *= 2;
|
406 |
|
|
target_structs = (struct target_ops **)
|
407 |
|
|
xrealloc ((char *) target_structs,
|
408 |
|
|
target_struct_allocsize * sizeof (*target_structs));
|
409 |
|
|
}
|
410 |
|
|
target_structs[target_struct_size++] = t;
|
411 |
|
|
|
412 |
|
|
if (targetlist == NULL)
|
413 |
|
|
add_prefix_cmd ("target", class_run, target_command, _("\
|
414 |
|
|
Connect to a target machine or process.\n\
|
415 |
|
|
The first argument is the type or protocol of the target machine.\n\
|
416 |
|
|
Remaining arguments are interpreted by the target protocol. For more\n\
|
417 |
|
|
information on the arguments for a particular protocol, type\n\
|
418 |
|
|
`help target ' followed by the protocol name."),
|
419 |
|
|
&targetlist, "target ", 0, &cmdlist);
|
420 |
|
|
add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist);
|
421 |
|
|
}
|
422 |
|
|
|
423 |
|
|
/* Stub functions */
|
424 |
|
|
|
425 |
|
|
void
|
426 |
|
|
target_ignore (void)
|
427 |
|
|
{
|
428 |
|
|
}
|
429 |
|
|
|
430 |
|
|
void
|
431 |
|
|
target_kill (void)
|
432 |
|
|
{
|
433 |
|
|
struct target_ops *t;
|
434 |
|
|
|
435 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
436 |
|
|
if (t->to_kill != NULL)
|
437 |
|
|
{
|
438 |
|
|
if (targetdebug)
|
439 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_kill ()\n");
|
440 |
|
|
|
441 |
|
|
t->to_kill (t);
|
442 |
|
|
return;
|
443 |
|
|
}
|
444 |
|
|
|
445 |
|
|
noprocess ();
|
446 |
|
|
}
|
447 |
|
|
|
448 |
|
|
void
|
449 |
|
|
target_load (char *arg, int from_tty)
|
450 |
|
|
{
|
451 |
|
|
target_dcache_invalidate ();
|
452 |
|
|
(*current_target.to_load) (arg, from_tty);
|
453 |
|
|
}
|
454 |
|
|
|
455 |
|
|
void
|
456 |
|
|
target_create_inferior (char *exec_file, char *args,
|
457 |
|
|
char **env, int from_tty)
|
458 |
|
|
{
|
459 |
|
|
struct target_ops *t;
|
460 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
461 |
|
|
{
|
462 |
|
|
if (t->to_create_inferior != NULL)
|
463 |
|
|
{
|
464 |
|
|
t->to_create_inferior (t, exec_file, args, env, from_tty);
|
465 |
|
|
if (targetdebug)
|
466 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
467 |
|
|
"target_create_inferior (%s, %s, xxx, %d)\n",
|
468 |
|
|
exec_file, args, from_tty);
|
469 |
|
|
return;
|
470 |
|
|
}
|
471 |
|
|
}
|
472 |
|
|
|
473 |
|
|
internal_error (__FILE__, __LINE__,
|
474 |
|
|
"could not find a target to create inferior");
|
475 |
|
|
}
|
476 |
|
|
|
477 |
|
|
void
|
478 |
|
|
target_terminal_inferior (void)
|
479 |
|
|
{
|
480 |
|
|
/* A background resume (``run&'') should leave GDB in control of the
|
481 |
|
|
terminal. Use target_can_async_p, not target_is_async_p, since at
|
482 |
|
|
this point the target is not async yet. However, if sync_execution
|
483 |
|
|
is not set, we know it will become async prior to resume. */
|
484 |
|
|
if (target_can_async_p () && !sync_execution)
|
485 |
|
|
return;
|
486 |
|
|
|
487 |
|
|
/* If GDB is resuming the inferior in the foreground, install
|
488 |
|
|
inferior's terminal modes. */
|
489 |
|
|
(*current_target.to_terminal_inferior) ();
|
490 |
|
|
}
|
491 |
|
|
|
492 |
|
|
static int
|
493 |
|
|
nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write,
|
494 |
|
|
struct target_ops *t)
|
495 |
|
|
{
|
496 |
|
|
errno = EIO; /* Can't read/write this location */
|
497 |
|
|
return 0; /* No bytes handled */
|
498 |
|
|
}
|
499 |
|
|
|
500 |
|
|
static void
|
501 |
|
|
tcomplain (void)
|
502 |
|
|
{
|
503 |
|
|
error (_("You can't do that when your target is `%s'"),
|
504 |
|
|
current_target.to_shortname);
|
505 |
|
|
}
|
506 |
|
|
|
507 |
|
|
void
|
508 |
|
|
noprocess (void)
|
509 |
|
|
{
|
510 |
|
|
error (_("You can't do that without a process to debug."));
|
511 |
|
|
}
|
512 |
|
|
|
513 |
|
|
static int
|
514 |
|
|
nosymbol (char *name, CORE_ADDR *addrp)
|
515 |
|
|
{
|
516 |
|
|
return 1; /* Symbol does not exist in target env */
|
517 |
|
|
}
|
518 |
|
|
|
519 |
|
|
static void
|
520 |
|
|
default_terminal_info (char *args, int from_tty)
|
521 |
|
|
{
|
522 |
|
|
printf_unfiltered (_("No saved terminal information.\n"));
|
523 |
|
|
}
|
524 |
|
|
|
525 |
|
|
/* A default implementation for the to_get_ada_task_ptid target method.
|
526 |
|
|
|
527 |
|
|
This function builds the PTID by using both LWP and TID as part of
|
528 |
|
|
the PTID lwp and tid elements. The pid used is the pid of the
|
529 |
|
|
inferior_ptid. */
|
530 |
|
|
|
531 |
|
|
static ptid_t
|
532 |
|
|
default_get_ada_task_ptid (long lwp, long tid)
|
533 |
|
|
{
|
534 |
|
|
return ptid_build (ptid_get_pid (inferior_ptid), lwp, tid);
|
535 |
|
|
}
|
536 |
|
|
|
537 |
|
|
/* Go through the target stack from top to bottom, copying over zero
|
538 |
|
|
entries in current_target, then filling in still empty entries. In
|
539 |
|
|
effect, we are doing class inheritance through the pushed target
|
540 |
|
|
vectors.
|
541 |
|
|
|
542 |
|
|
NOTE: cagney/2003-10-17: The problem with this inheritance, as it
|
543 |
|
|
is currently implemented, is that it discards any knowledge of
|
544 |
|
|
which target an inherited method originally belonged to.
|
545 |
|
|
Consequently, new new target methods should instead explicitly and
|
546 |
|
|
locally search the target stack for the target that can handle the
|
547 |
|
|
request. */
|
548 |
|
|
|
549 |
|
|
static void
|
550 |
|
|
update_current_target (void)
|
551 |
|
|
{
|
552 |
|
|
struct target_ops *t;
|
553 |
|
|
|
554 |
|
|
/* First, reset current's contents. */
|
555 |
|
|
memset (¤t_target, 0, sizeof (current_target));
|
556 |
|
|
|
557 |
|
|
#define INHERIT(FIELD, TARGET) \
|
558 |
|
|
if (!current_target.FIELD) \
|
559 |
|
|
current_target.FIELD = (TARGET)->FIELD
|
560 |
|
|
|
561 |
|
|
for (t = target_stack; t; t = t->beneath)
|
562 |
|
|
{
|
563 |
|
|
INHERIT (to_shortname, t);
|
564 |
|
|
INHERIT (to_longname, t);
|
565 |
|
|
INHERIT (to_doc, t);
|
566 |
|
|
/* Do not inherit to_open. */
|
567 |
|
|
/* Do not inherit to_close. */
|
568 |
|
|
/* Do not inherit to_attach. */
|
569 |
|
|
INHERIT (to_post_attach, t);
|
570 |
|
|
INHERIT (to_attach_no_wait, t);
|
571 |
|
|
/* Do not inherit to_detach. */
|
572 |
|
|
/* Do not inherit to_disconnect. */
|
573 |
|
|
/* Do not inherit to_resume. */
|
574 |
|
|
/* Do not inherit to_wait. */
|
575 |
|
|
/* Do not inherit to_fetch_registers. */
|
576 |
|
|
/* Do not inherit to_store_registers. */
|
577 |
|
|
INHERIT (to_prepare_to_store, t);
|
578 |
|
|
INHERIT (deprecated_xfer_memory, t);
|
579 |
|
|
INHERIT (to_files_info, t);
|
580 |
|
|
INHERIT (to_insert_breakpoint, t);
|
581 |
|
|
INHERIT (to_remove_breakpoint, t);
|
582 |
|
|
INHERIT (to_can_use_hw_breakpoint, t);
|
583 |
|
|
INHERIT (to_insert_hw_breakpoint, t);
|
584 |
|
|
INHERIT (to_remove_hw_breakpoint, t);
|
585 |
|
|
INHERIT (to_insert_watchpoint, t);
|
586 |
|
|
INHERIT (to_remove_watchpoint, t);
|
587 |
|
|
INHERIT (to_stopped_data_address, t);
|
588 |
|
|
INHERIT (to_have_steppable_watchpoint, t);
|
589 |
|
|
INHERIT (to_have_continuable_watchpoint, t);
|
590 |
|
|
INHERIT (to_stopped_by_watchpoint, t);
|
591 |
|
|
INHERIT (to_watchpoint_addr_within_range, t);
|
592 |
|
|
INHERIT (to_region_ok_for_hw_watchpoint, t);
|
593 |
|
|
INHERIT (to_terminal_init, t);
|
594 |
|
|
INHERIT (to_terminal_inferior, t);
|
595 |
|
|
INHERIT (to_terminal_ours_for_output, t);
|
596 |
|
|
INHERIT (to_terminal_ours, t);
|
597 |
|
|
INHERIT (to_terminal_save_ours, t);
|
598 |
|
|
INHERIT (to_terminal_info, t);
|
599 |
|
|
/* Do not inherit to_kill. */
|
600 |
|
|
INHERIT (to_load, t);
|
601 |
|
|
INHERIT (to_lookup_symbol, t);
|
602 |
|
|
/* Do no inherit to_create_inferior. */
|
603 |
|
|
INHERIT (to_post_startup_inferior, t);
|
604 |
|
|
INHERIT (to_acknowledge_created_inferior, t);
|
605 |
|
|
INHERIT (to_insert_fork_catchpoint, t);
|
606 |
|
|
INHERIT (to_remove_fork_catchpoint, t);
|
607 |
|
|
INHERIT (to_insert_vfork_catchpoint, t);
|
608 |
|
|
INHERIT (to_remove_vfork_catchpoint, t);
|
609 |
|
|
/* Do not inherit to_follow_fork. */
|
610 |
|
|
INHERIT (to_insert_exec_catchpoint, t);
|
611 |
|
|
INHERIT (to_remove_exec_catchpoint, t);
|
612 |
|
|
INHERIT (to_set_syscall_catchpoint, t);
|
613 |
|
|
INHERIT (to_has_exited, t);
|
614 |
|
|
/* Do not inherit to_mourn_inferiour. */
|
615 |
|
|
INHERIT (to_can_run, t);
|
616 |
|
|
INHERIT (to_notice_signals, t);
|
617 |
|
|
/* Do not inherit to_thread_alive. */
|
618 |
|
|
/* Do not inherit to_find_new_threads. */
|
619 |
|
|
/* Do not inherit to_pid_to_str. */
|
620 |
|
|
INHERIT (to_extra_thread_info, t);
|
621 |
|
|
INHERIT (to_stop, t);
|
622 |
|
|
/* Do not inherit to_xfer_partial. */
|
623 |
|
|
INHERIT (to_rcmd, t);
|
624 |
|
|
INHERIT (to_pid_to_exec_file, t);
|
625 |
|
|
INHERIT (to_log_command, t);
|
626 |
|
|
INHERIT (to_stratum, t);
|
627 |
|
|
/* Do not inherit to_has_all_memory */
|
628 |
|
|
/* Do not inherit to_has_memory */
|
629 |
|
|
/* Do not inherit to_has_stack */
|
630 |
|
|
/* Do not inherit to_has_registers */
|
631 |
|
|
/* Do not inherit to_has_execution */
|
632 |
|
|
INHERIT (to_has_thread_control, t);
|
633 |
|
|
INHERIT (to_can_async_p, t);
|
634 |
|
|
INHERIT (to_is_async_p, t);
|
635 |
|
|
INHERIT (to_async, t);
|
636 |
|
|
INHERIT (to_async_mask, t);
|
637 |
|
|
INHERIT (to_find_memory_regions, t);
|
638 |
|
|
INHERIT (to_make_corefile_notes, t);
|
639 |
|
|
INHERIT (to_get_bookmark, t);
|
640 |
|
|
INHERIT (to_goto_bookmark, t);
|
641 |
|
|
/* Do not inherit to_get_thread_local_address. */
|
642 |
|
|
INHERIT (to_can_execute_reverse, t);
|
643 |
|
|
INHERIT (to_thread_architecture, t);
|
644 |
|
|
/* Do not inherit to_read_description. */
|
645 |
|
|
INHERIT (to_get_ada_task_ptid, t);
|
646 |
|
|
/* Do not inherit to_search_memory. */
|
647 |
|
|
INHERIT (to_supports_multi_process, t);
|
648 |
|
|
INHERIT (to_trace_init, t);
|
649 |
|
|
INHERIT (to_download_tracepoint, t);
|
650 |
|
|
INHERIT (to_download_trace_state_variable, t);
|
651 |
|
|
INHERIT (to_trace_set_readonly_regions, t);
|
652 |
|
|
INHERIT (to_trace_start, t);
|
653 |
|
|
INHERIT (to_get_trace_status, t);
|
654 |
|
|
INHERIT (to_trace_stop, t);
|
655 |
|
|
INHERIT (to_trace_find, t);
|
656 |
|
|
INHERIT (to_get_trace_state_variable_value, t);
|
657 |
|
|
INHERIT (to_save_trace_data, t);
|
658 |
|
|
INHERIT (to_upload_tracepoints, t);
|
659 |
|
|
INHERIT (to_upload_trace_state_variables, t);
|
660 |
|
|
INHERIT (to_get_raw_trace_data, t);
|
661 |
|
|
INHERIT (to_set_disconnected_tracing, t);
|
662 |
|
|
INHERIT (to_magic, t);
|
663 |
|
|
/* Do not inherit to_memory_map. */
|
664 |
|
|
/* Do not inherit to_flash_erase. */
|
665 |
|
|
/* Do not inherit to_flash_done. */
|
666 |
|
|
}
|
667 |
|
|
#undef INHERIT
|
668 |
|
|
|
669 |
|
|
/* Clean up a target struct so it no longer has any zero pointers in
|
670 |
|
|
it. Some entries are defaulted to a method that print an error,
|
671 |
|
|
others are hard-wired to a standard recursive default. */
|
672 |
|
|
|
673 |
|
|
#define de_fault(field, value) \
|
674 |
|
|
if (!current_target.field) \
|
675 |
|
|
current_target.field = value
|
676 |
|
|
|
677 |
|
|
de_fault (to_open,
|
678 |
|
|
(void (*) (char *, int))
|
679 |
|
|
tcomplain);
|
680 |
|
|
de_fault (to_close,
|
681 |
|
|
(void (*) (int))
|
682 |
|
|
target_ignore);
|
683 |
|
|
de_fault (to_post_attach,
|
684 |
|
|
(void (*) (int))
|
685 |
|
|
target_ignore);
|
686 |
|
|
de_fault (to_prepare_to_store,
|
687 |
|
|
(void (*) (struct regcache *))
|
688 |
|
|
noprocess);
|
689 |
|
|
de_fault (deprecated_xfer_memory,
|
690 |
|
|
(int (*) (CORE_ADDR, gdb_byte *, int, int, struct mem_attrib *, struct target_ops *))
|
691 |
|
|
nomemory);
|
692 |
|
|
de_fault (to_files_info,
|
693 |
|
|
(void (*) (struct target_ops *))
|
694 |
|
|
target_ignore);
|
695 |
|
|
de_fault (to_insert_breakpoint,
|
696 |
|
|
memory_insert_breakpoint);
|
697 |
|
|
de_fault (to_remove_breakpoint,
|
698 |
|
|
memory_remove_breakpoint);
|
699 |
|
|
de_fault (to_can_use_hw_breakpoint,
|
700 |
|
|
(int (*) (int, int, int))
|
701 |
|
|
return_zero);
|
702 |
|
|
de_fault (to_insert_hw_breakpoint,
|
703 |
|
|
(int (*) (struct gdbarch *, struct bp_target_info *))
|
704 |
|
|
return_minus_one);
|
705 |
|
|
de_fault (to_remove_hw_breakpoint,
|
706 |
|
|
(int (*) (struct gdbarch *, struct bp_target_info *))
|
707 |
|
|
return_minus_one);
|
708 |
|
|
de_fault (to_insert_watchpoint,
|
709 |
|
|
(int (*) (CORE_ADDR, int, int))
|
710 |
|
|
return_minus_one);
|
711 |
|
|
de_fault (to_remove_watchpoint,
|
712 |
|
|
(int (*) (CORE_ADDR, int, int))
|
713 |
|
|
return_minus_one);
|
714 |
|
|
de_fault (to_stopped_by_watchpoint,
|
715 |
|
|
(int (*) (void))
|
716 |
|
|
return_zero);
|
717 |
|
|
de_fault (to_stopped_data_address,
|
718 |
|
|
(int (*) (struct target_ops *, CORE_ADDR *))
|
719 |
|
|
return_zero);
|
720 |
|
|
de_fault (to_watchpoint_addr_within_range,
|
721 |
|
|
default_watchpoint_addr_within_range);
|
722 |
|
|
de_fault (to_region_ok_for_hw_watchpoint,
|
723 |
|
|
default_region_ok_for_hw_watchpoint);
|
724 |
|
|
de_fault (to_terminal_init,
|
725 |
|
|
(void (*) (void))
|
726 |
|
|
target_ignore);
|
727 |
|
|
de_fault (to_terminal_inferior,
|
728 |
|
|
(void (*) (void))
|
729 |
|
|
target_ignore);
|
730 |
|
|
de_fault (to_terminal_ours_for_output,
|
731 |
|
|
(void (*) (void))
|
732 |
|
|
target_ignore);
|
733 |
|
|
de_fault (to_terminal_ours,
|
734 |
|
|
(void (*) (void))
|
735 |
|
|
target_ignore);
|
736 |
|
|
de_fault (to_terminal_save_ours,
|
737 |
|
|
(void (*) (void))
|
738 |
|
|
target_ignore);
|
739 |
|
|
de_fault (to_terminal_info,
|
740 |
|
|
default_terminal_info);
|
741 |
|
|
de_fault (to_load,
|
742 |
|
|
(void (*) (char *, int))
|
743 |
|
|
tcomplain);
|
744 |
|
|
de_fault (to_lookup_symbol,
|
745 |
|
|
(int (*) (char *, CORE_ADDR *))
|
746 |
|
|
nosymbol);
|
747 |
|
|
de_fault (to_post_startup_inferior,
|
748 |
|
|
(void (*) (ptid_t))
|
749 |
|
|
target_ignore);
|
750 |
|
|
de_fault (to_acknowledge_created_inferior,
|
751 |
|
|
(void (*) (int))
|
752 |
|
|
target_ignore);
|
753 |
|
|
de_fault (to_insert_fork_catchpoint,
|
754 |
|
|
(void (*) (int))
|
755 |
|
|
tcomplain);
|
756 |
|
|
de_fault (to_remove_fork_catchpoint,
|
757 |
|
|
(int (*) (int))
|
758 |
|
|
tcomplain);
|
759 |
|
|
de_fault (to_insert_vfork_catchpoint,
|
760 |
|
|
(void (*) (int))
|
761 |
|
|
tcomplain);
|
762 |
|
|
de_fault (to_remove_vfork_catchpoint,
|
763 |
|
|
(int (*) (int))
|
764 |
|
|
tcomplain);
|
765 |
|
|
de_fault (to_insert_exec_catchpoint,
|
766 |
|
|
(void (*) (int))
|
767 |
|
|
tcomplain);
|
768 |
|
|
de_fault (to_remove_exec_catchpoint,
|
769 |
|
|
(int (*) (int))
|
770 |
|
|
tcomplain);
|
771 |
|
|
de_fault (to_set_syscall_catchpoint,
|
772 |
|
|
(int (*) (int, int, int, int, int *))
|
773 |
|
|
tcomplain);
|
774 |
|
|
de_fault (to_has_exited,
|
775 |
|
|
(int (*) (int, int, int *))
|
776 |
|
|
return_zero);
|
777 |
|
|
de_fault (to_can_run,
|
778 |
|
|
return_zero);
|
779 |
|
|
de_fault (to_notice_signals,
|
780 |
|
|
(void (*) (ptid_t))
|
781 |
|
|
target_ignore);
|
782 |
|
|
de_fault (to_extra_thread_info,
|
783 |
|
|
(char *(*) (struct thread_info *))
|
784 |
|
|
return_zero);
|
785 |
|
|
de_fault (to_stop,
|
786 |
|
|
(void (*) (ptid_t))
|
787 |
|
|
target_ignore);
|
788 |
|
|
current_target.to_xfer_partial = current_xfer_partial;
|
789 |
|
|
de_fault (to_rcmd,
|
790 |
|
|
(void (*) (char *, struct ui_file *))
|
791 |
|
|
tcomplain);
|
792 |
|
|
de_fault (to_pid_to_exec_file,
|
793 |
|
|
(char *(*) (int))
|
794 |
|
|
return_zero);
|
795 |
|
|
de_fault (to_async,
|
796 |
|
|
(void (*) (void (*) (enum inferior_event_type, void*), void*))
|
797 |
|
|
tcomplain);
|
798 |
|
|
de_fault (to_async_mask,
|
799 |
|
|
(int (*) (int))
|
800 |
|
|
return_one);
|
801 |
|
|
de_fault (to_thread_architecture,
|
802 |
|
|
default_thread_architecture);
|
803 |
|
|
current_target.to_read_description = NULL;
|
804 |
|
|
de_fault (to_get_ada_task_ptid,
|
805 |
|
|
(ptid_t (*) (long, long))
|
806 |
|
|
default_get_ada_task_ptid);
|
807 |
|
|
de_fault (to_supports_multi_process,
|
808 |
|
|
(int (*) (void))
|
809 |
|
|
return_zero);
|
810 |
|
|
de_fault (to_trace_init,
|
811 |
|
|
(void (*) (void))
|
812 |
|
|
tcomplain);
|
813 |
|
|
de_fault (to_download_tracepoint,
|
814 |
|
|
(void (*) (struct breakpoint *))
|
815 |
|
|
tcomplain);
|
816 |
|
|
de_fault (to_download_trace_state_variable,
|
817 |
|
|
(void (*) (struct trace_state_variable *))
|
818 |
|
|
tcomplain);
|
819 |
|
|
de_fault (to_trace_set_readonly_regions,
|
820 |
|
|
(void (*) (void))
|
821 |
|
|
tcomplain);
|
822 |
|
|
de_fault (to_trace_start,
|
823 |
|
|
(void (*) (void))
|
824 |
|
|
tcomplain);
|
825 |
|
|
de_fault (to_get_trace_status,
|
826 |
|
|
(int (*) (struct trace_status *))
|
827 |
|
|
return_minus_one);
|
828 |
|
|
de_fault (to_trace_stop,
|
829 |
|
|
(void (*) (void))
|
830 |
|
|
tcomplain);
|
831 |
|
|
de_fault (to_trace_find,
|
832 |
|
|
(int (*) (enum trace_find_type, int, ULONGEST, ULONGEST, int *))
|
833 |
|
|
return_zero);
|
834 |
|
|
de_fault (to_get_trace_state_variable_value,
|
835 |
|
|
(int (*) (int, LONGEST *))
|
836 |
|
|
return_zero);
|
837 |
|
|
de_fault (to_save_trace_data,
|
838 |
|
|
(int (*) (char *))
|
839 |
|
|
tcomplain);
|
840 |
|
|
de_fault (to_upload_tracepoints,
|
841 |
|
|
(int (*) (struct uploaded_tp **))
|
842 |
|
|
return_zero);
|
843 |
|
|
de_fault (to_upload_trace_state_variables,
|
844 |
|
|
(int (*) (struct uploaded_tsv **))
|
845 |
|
|
return_zero);
|
846 |
|
|
de_fault (to_get_raw_trace_data,
|
847 |
|
|
(LONGEST (*) (gdb_byte *, ULONGEST, LONGEST))
|
848 |
|
|
tcomplain);
|
849 |
|
|
de_fault (to_set_disconnected_tracing,
|
850 |
|
|
(void (*) (int))
|
851 |
|
|
tcomplain);
|
852 |
|
|
#undef de_fault
|
853 |
|
|
|
854 |
|
|
/* Finally, position the target-stack beneath the squashed
|
855 |
|
|
"current_target". That way code looking for a non-inherited
|
856 |
|
|
target method can quickly and simply find it. */
|
857 |
|
|
current_target.beneath = target_stack;
|
858 |
|
|
|
859 |
|
|
if (targetdebug)
|
860 |
|
|
setup_target_debug ();
|
861 |
|
|
}
|
862 |
|
|
|
863 |
|
|
/* Push a new target type into the stack of the existing target accessors,
|
864 |
|
|
possibly superseding some of the existing accessors.
|
865 |
|
|
|
866 |
|
|
Result is zero if the pushed target ended up on top of the stack,
|
867 |
|
|
nonzero if at least one target is on top of it.
|
868 |
|
|
|
869 |
|
|
Rather than allow an empty stack, we always have the dummy target at
|
870 |
|
|
the bottom stratum, so we can call the function vectors without
|
871 |
|
|
checking them. */
|
872 |
|
|
|
873 |
|
|
int
|
874 |
|
|
push_target (struct target_ops *t)
|
875 |
|
|
{
|
876 |
|
|
struct target_ops **cur;
|
877 |
|
|
|
878 |
|
|
/* Check magic number. If wrong, it probably means someone changed
|
879 |
|
|
the struct definition, but not all the places that initialize one. */
|
880 |
|
|
if (t->to_magic != OPS_MAGIC)
|
881 |
|
|
{
|
882 |
|
|
fprintf_unfiltered (gdb_stderr,
|
883 |
|
|
"Magic number of %s target struct wrong\n",
|
884 |
|
|
t->to_shortname);
|
885 |
|
|
internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
|
886 |
|
|
}
|
887 |
|
|
|
888 |
|
|
/* Find the proper stratum to install this target in. */
|
889 |
|
|
for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath)
|
890 |
|
|
{
|
891 |
|
|
if ((int) (t->to_stratum) >= (int) (*cur)->to_stratum)
|
892 |
|
|
break;
|
893 |
|
|
}
|
894 |
|
|
|
895 |
|
|
/* If there's already targets at this stratum, remove them. */
|
896 |
|
|
/* FIXME: cagney/2003-10-15: I think this should be popping all
|
897 |
|
|
targets to CUR, and not just those at this stratum level. */
|
898 |
|
|
while ((*cur) != NULL && t->to_stratum == (*cur)->to_stratum)
|
899 |
|
|
{
|
900 |
|
|
/* There's already something at this stratum level. Close it,
|
901 |
|
|
and un-hook it from the stack. */
|
902 |
|
|
struct target_ops *tmp = (*cur);
|
903 |
|
|
(*cur) = (*cur)->beneath;
|
904 |
|
|
tmp->beneath = NULL;
|
905 |
|
|
target_close (tmp, 0);
|
906 |
|
|
}
|
907 |
|
|
|
908 |
|
|
/* We have removed all targets in our stratum, now add the new one. */
|
909 |
|
|
t->beneath = (*cur);
|
910 |
|
|
(*cur) = t;
|
911 |
|
|
|
912 |
|
|
update_current_target ();
|
913 |
|
|
|
914 |
|
|
/* Not on top? */
|
915 |
|
|
return (t != target_stack);
|
916 |
|
|
}
|
917 |
|
|
|
918 |
|
|
/* Remove a target_ops vector from the stack, wherever it may be.
|
919 |
|
|
Return how many times it was removed (0 or 1). */
|
920 |
|
|
|
921 |
|
|
int
|
922 |
|
|
unpush_target (struct target_ops *t)
|
923 |
|
|
{
|
924 |
|
|
struct target_ops **cur;
|
925 |
|
|
struct target_ops *tmp;
|
926 |
|
|
|
927 |
|
|
if (t->to_stratum == dummy_stratum)
|
928 |
|
|
internal_error (__FILE__, __LINE__,
|
929 |
|
|
"Attempt to unpush the dummy target");
|
930 |
|
|
|
931 |
|
|
/* Look for the specified target. Note that we assume that a target
|
932 |
|
|
can only occur once in the target stack. */
|
933 |
|
|
|
934 |
|
|
for (cur = &target_stack; (*cur) != NULL; cur = &(*cur)->beneath)
|
935 |
|
|
{
|
936 |
|
|
if ((*cur) == t)
|
937 |
|
|
break;
|
938 |
|
|
}
|
939 |
|
|
|
940 |
|
|
if ((*cur) == NULL)
|
941 |
|
|
return 0; /* Didn't find target_ops, quit now */
|
942 |
|
|
|
943 |
|
|
/* NOTE: cagney/2003-12-06: In '94 the close call was made
|
944 |
|
|
unconditional by moving it to before the above check that the
|
945 |
|
|
target was in the target stack (something about "Change the way
|
946 |
|
|
pushing and popping of targets work to support target overlays
|
947 |
|
|
and inheritance"). This doesn't make much sense - only open
|
948 |
|
|
targets should be closed. */
|
949 |
|
|
target_close (t, 0);
|
950 |
|
|
|
951 |
|
|
/* Unchain the target */
|
952 |
|
|
tmp = (*cur);
|
953 |
|
|
(*cur) = (*cur)->beneath;
|
954 |
|
|
tmp->beneath = NULL;
|
955 |
|
|
|
956 |
|
|
update_current_target ();
|
957 |
|
|
|
958 |
|
|
return 1;
|
959 |
|
|
}
|
960 |
|
|
|
961 |
|
|
void
|
962 |
|
|
pop_target (void)
|
963 |
|
|
{
|
964 |
|
|
target_close (target_stack, 0); /* Let it clean up */
|
965 |
|
|
if (unpush_target (target_stack) == 1)
|
966 |
|
|
return;
|
967 |
|
|
|
968 |
|
|
fprintf_unfiltered (gdb_stderr,
|
969 |
|
|
"pop_target couldn't find target %s\n",
|
970 |
|
|
current_target.to_shortname);
|
971 |
|
|
internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
|
972 |
|
|
}
|
973 |
|
|
|
974 |
|
|
void
|
975 |
|
|
pop_all_targets_above (enum strata above_stratum, int quitting)
|
976 |
|
|
{
|
977 |
|
|
while ((int) (current_target.to_stratum) > (int) above_stratum)
|
978 |
|
|
{
|
979 |
|
|
target_close (target_stack, quitting);
|
980 |
|
|
if (!unpush_target (target_stack))
|
981 |
|
|
{
|
982 |
|
|
fprintf_unfiltered (gdb_stderr,
|
983 |
|
|
"pop_all_targets couldn't find target %s\n",
|
984 |
|
|
target_stack->to_shortname);
|
985 |
|
|
internal_error (__FILE__, __LINE__,
|
986 |
|
|
_("failed internal consistency check"));
|
987 |
|
|
break;
|
988 |
|
|
}
|
989 |
|
|
}
|
990 |
|
|
}
|
991 |
|
|
|
992 |
|
|
void
|
993 |
|
|
pop_all_targets (int quitting)
|
994 |
|
|
{
|
995 |
|
|
pop_all_targets_above (dummy_stratum, quitting);
|
996 |
|
|
}
|
997 |
|
|
|
998 |
|
|
/* Using the objfile specified in OBJFILE, find the address for the
|
999 |
|
|
current thread's thread-local storage with offset OFFSET. */
|
1000 |
|
|
CORE_ADDR
|
1001 |
|
|
target_translate_tls_address (struct objfile *objfile, CORE_ADDR offset)
|
1002 |
|
|
{
|
1003 |
|
|
volatile CORE_ADDR addr = 0;
|
1004 |
|
|
struct target_ops *target;
|
1005 |
|
|
|
1006 |
|
|
for (target = current_target.beneath;
|
1007 |
|
|
target != NULL;
|
1008 |
|
|
target = target->beneath)
|
1009 |
|
|
{
|
1010 |
|
|
if (target->to_get_thread_local_address != NULL)
|
1011 |
|
|
break;
|
1012 |
|
|
}
|
1013 |
|
|
|
1014 |
|
|
if (target != NULL
|
1015 |
|
|
&& gdbarch_fetch_tls_load_module_address_p (target_gdbarch))
|
1016 |
|
|
{
|
1017 |
|
|
ptid_t ptid = inferior_ptid;
|
1018 |
|
|
volatile struct gdb_exception ex;
|
1019 |
|
|
|
1020 |
|
|
TRY_CATCH (ex, RETURN_MASK_ALL)
|
1021 |
|
|
{
|
1022 |
|
|
CORE_ADDR lm_addr;
|
1023 |
|
|
|
1024 |
|
|
/* Fetch the load module address for this objfile. */
|
1025 |
|
|
lm_addr = gdbarch_fetch_tls_load_module_address (target_gdbarch,
|
1026 |
|
|
objfile);
|
1027 |
|
|
/* If it's 0, throw the appropriate exception. */
|
1028 |
|
|
if (lm_addr == 0)
|
1029 |
|
|
throw_error (TLS_LOAD_MODULE_NOT_FOUND_ERROR,
|
1030 |
|
|
_("TLS load module not found"));
|
1031 |
|
|
|
1032 |
|
|
addr = target->to_get_thread_local_address (target, ptid, lm_addr, offset);
|
1033 |
|
|
}
|
1034 |
|
|
/* If an error occurred, print TLS related messages here. Otherwise,
|
1035 |
|
|
throw the error to some higher catcher. */
|
1036 |
|
|
if (ex.reason < 0)
|
1037 |
|
|
{
|
1038 |
|
|
int objfile_is_library = (objfile->flags & OBJF_SHARED);
|
1039 |
|
|
|
1040 |
|
|
switch (ex.error)
|
1041 |
|
|
{
|
1042 |
|
|
case TLS_NO_LIBRARY_SUPPORT_ERROR:
|
1043 |
|
|
error (_("Cannot find thread-local variables in this thread library."));
|
1044 |
|
|
break;
|
1045 |
|
|
case TLS_LOAD_MODULE_NOT_FOUND_ERROR:
|
1046 |
|
|
if (objfile_is_library)
|
1047 |
|
|
error (_("Cannot find shared library `%s' in dynamic"
|
1048 |
|
|
" linker's load module list"), objfile->name);
|
1049 |
|
|
else
|
1050 |
|
|
error (_("Cannot find executable file `%s' in dynamic"
|
1051 |
|
|
" linker's load module list"), objfile->name);
|
1052 |
|
|
break;
|
1053 |
|
|
case TLS_NOT_ALLOCATED_YET_ERROR:
|
1054 |
|
|
if (objfile_is_library)
|
1055 |
|
|
error (_("The inferior has not yet allocated storage for"
|
1056 |
|
|
" thread-local variables in\n"
|
1057 |
|
|
"the shared library `%s'\n"
|
1058 |
|
|
"for %s"),
|
1059 |
|
|
objfile->name, target_pid_to_str (ptid));
|
1060 |
|
|
else
|
1061 |
|
|
error (_("The inferior has not yet allocated storage for"
|
1062 |
|
|
" thread-local variables in\n"
|
1063 |
|
|
"the executable `%s'\n"
|
1064 |
|
|
"for %s"),
|
1065 |
|
|
objfile->name, target_pid_to_str (ptid));
|
1066 |
|
|
break;
|
1067 |
|
|
case TLS_GENERIC_ERROR:
|
1068 |
|
|
if (objfile_is_library)
|
1069 |
|
|
error (_("Cannot find thread-local storage for %s, "
|
1070 |
|
|
"shared library %s:\n%s"),
|
1071 |
|
|
target_pid_to_str (ptid),
|
1072 |
|
|
objfile->name, ex.message);
|
1073 |
|
|
else
|
1074 |
|
|
error (_("Cannot find thread-local storage for %s, "
|
1075 |
|
|
"executable file %s:\n%s"),
|
1076 |
|
|
target_pid_to_str (ptid),
|
1077 |
|
|
objfile->name, ex.message);
|
1078 |
|
|
break;
|
1079 |
|
|
default:
|
1080 |
|
|
throw_exception (ex);
|
1081 |
|
|
break;
|
1082 |
|
|
}
|
1083 |
|
|
}
|
1084 |
|
|
}
|
1085 |
|
|
/* It wouldn't be wrong here to try a gdbarch method, too; finding
|
1086 |
|
|
TLS is an ABI-specific thing. But we don't do that yet. */
|
1087 |
|
|
else
|
1088 |
|
|
error (_("Cannot find thread-local variables on this target"));
|
1089 |
|
|
|
1090 |
|
|
return addr;
|
1091 |
|
|
}
|
1092 |
|
|
|
1093 |
|
|
#undef MIN
|
1094 |
|
|
#define MIN(A, B) (((A) <= (B)) ? (A) : (B))
|
1095 |
|
|
|
1096 |
|
|
/* target_read_string -- read a null terminated string, up to LEN bytes,
|
1097 |
|
|
from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
|
1098 |
|
|
Set *STRING to a pointer to malloc'd memory containing the data; the caller
|
1099 |
|
|
is responsible for freeing it. Return the number of bytes successfully
|
1100 |
|
|
read. */
|
1101 |
|
|
|
1102 |
|
|
int
|
1103 |
|
|
target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop)
|
1104 |
|
|
{
|
1105 |
|
|
int tlen, origlen, offset, i;
|
1106 |
|
|
gdb_byte buf[4];
|
1107 |
|
|
int errcode = 0;
|
1108 |
|
|
char *buffer;
|
1109 |
|
|
int buffer_allocated;
|
1110 |
|
|
char *bufptr;
|
1111 |
|
|
unsigned int nbytes_read = 0;
|
1112 |
|
|
|
1113 |
|
|
gdb_assert (string);
|
1114 |
|
|
|
1115 |
|
|
/* Small for testing. */
|
1116 |
|
|
buffer_allocated = 4;
|
1117 |
|
|
buffer = xmalloc (buffer_allocated);
|
1118 |
|
|
bufptr = buffer;
|
1119 |
|
|
|
1120 |
|
|
origlen = len;
|
1121 |
|
|
|
1122 |
|
|
while (len > 0)
|
1123 |
|
|
{
|
1124 |
|
|
tlen = MIN (len, 4 - (memaddr & 3));
|
1125 |
|
|
offset = memaddr & 3;
|
1126 |
|
|
|
1127 |
|
|
errcode = target_read_memory (memaddr & ~3, buf, sizeof buf);
|
1128 |
|
|
if (errcode != 0)
|
1129 |
|
|
{
|
1130 |
|
|
/* The transfer request might have crossed the boundary to an
|
1131 |
|
|
unallocated region of memory. Retry the transfer, requesting
|
1132 |
|
|
a single byte. */
|
1133 |
|
|
tlen = 1;
|
1134 |
|
|
offset = 0;
|
1135 |
|
|
errcode = target_read_memory (memaddr, buf, 1);
|
1136 |
|
|
if (errcode != 0)
|
1137 |
|
|
goto done;
|
1138 |
|
|
}
|
1139 |
|
|
|
1140 |
|
|
if (bufptr - buffer + tlen > buffer_allocated)
|
1141 |
|
|
{
|
1142 |
|
|
unsigned int bytes;
|
1143 |
|
|
bytes = bufptr - buffer;
|
1144 |
|
|
buffer_allocated *= 2;
|
1145 |
|
|
buffer = xrealloc (buffer, buffer_allocated);
|
1146 |
|
|
bufptr = buffer + bytes;
|
1147 |
|
|
}
|
1148 |
|
|
|
1149 |
|
|
for (i = 0; i < tlen; i++)
|
1150 |
|
|
{
|
1151 |
|
|
*bufptr++ = buf[i + offset];
|
1152 |
|
|
if (buf[i + offset] == '\000')
|
1153 |
|
|
{
|
1154 |
|
|
nbytes_read += i + 1;
|
1155 |
|
|
goto done;
|
1156 |
|
|
}
|
1157 |
|
|
}
|
1158 |
|
|
|
1159 |
|
|
memaddr += tlen;
|
1160 |
|
|
len -= tlen;
|
1161 |
|
|
nbytes_read += tlen;
|
1162 |
|
|
}
|
1163 |
|
|
done:
|
1164 |
|
|
*string = buffer;
|
1165 |
|
|
if (errnop != NULL)
|
1166 |
|
|
*errnop = errcode;
|
1167 |
|
|
return nbytes_read;
|
1168 |
|
|
}
|
1169 |
|
|
|
1170 |
|
|
struct target_section_table *
|
1171 |
|
|
target_get_section_table (struct target_ops *target)
|
1172 |
|
|
{
|
1173 |
|
|
struct target_ops *t;
|
1174 |
|
|
|
1175 |
|
|
if (targetdebug)
|
1176 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_get_section_table ()\n");
|
1177 |
|
|
|
1178 |
|
|
for (t = target; t != NULL; t = t->beneath)
|
1179 |
|
|
if (t->to_get_section_table != NULL)
|
1180 |
|
|
return (*t->to_get_section_table) (t);
|
1181 |
|
|
|
1182 |
|
|
return NULL;
|
1183 |
|
|
}
|
1184 |
|
|
|
1185 |
|
|
/* Find a section containing ADDR. */
|
1186 |
|
|
|
1187 |
|
|
struct target_section *
|
1188 |
|
|
target_section_by_addr (struct target_ops *target, CORE_ADDR addr)
|
1189 |
|
|
{
|
1190 |
|
|
struct target_section_table *table = target_get_section_table (target);
|
1191 |
|
|
struct target_section *secp;
|
1192 |
|
|
|
1193 |
|
|
if (table == NULL)
|
1194 |
|
|
return NULL;
|
1195 |
|
|
|
1196 |
|
|
for (secp = table->sections; secp < table->sections_end; secp++)
|
1197 |
|
|
{
|
1198 |
|
|
if (addr >= secp->addr && addr < secp->endaddr)
|
1199 |
|
|
return secp;
|
1200 |
|
|
}
|
1201 |
|
|
return NULL;
|
1202 |
|
|
}
|
1203 |
|
|
|
1204 |
|
|
/* Perform a partial memory transfer.
|
1205 |
|
|
For docs see target.h, to_xfer_partial. */
|
1206 |
|
|
|
1207 |
|
|
static LONGEST
|
1208 |
|
|
memory_xfer_partial (struct target_ops *ops, enum target_object object,
|
1209 |
|
|
void *readbuf, const void *writebuf, ULONGEST memaddr,
|
1210 |
|
|
LONGEST len)
|
1211 |
|
|
{
|
1212 |
|
|
LONGEST res;
|
1213 |
|
|
int reg_len;
|
1214 |
|
|
struct mem_region *region;
|
1215 |
|
|
struct inferior *inf;
|
1216 |
|
|
|
1217 |
|
|
/* Zero length requests are ok and require no work. */
|
1218 |
|
|
if (len == 0)
|
1219 |
|
|
return 0;
|
1220 |
|
|
|
1221 |
|
|
/* For accesses to unmapped overlay sections, read directly from
|
1222 |
|
|
files. Must do this first, as MEMADDR may need adjustment. */
|
1223 |
|
|
if (readbuf != NULL && overlay_debugging)
|
1224 |
|
|
{
|
1225 |
|
|
struct obj_section *section = find_pc_overlay (memaddr);
|
1226 |
|
|
if (pc_in_unmapped_range (memaddr, section))
|
1227 |
|
|
{
|
1228 |
|
|
struct target_section_table *table
|
1229 |
|
|
= target_get_section_table (ops);
|
1230 |
|
|
const char *section_name = section->the_bfd_section->name;
|
1231 |
|
|
memaddr = overlay_mapped_address (memaddr, section);
|
1232 |
|
|
return section_table_xfer_memory_partial (readbuf, writebuf,
|
1233 |
|
|
memaddr, len,
|
1234 |
|
|
table->sections,
|
1235 |
|
|
table->sections_end,
|
1236 |
|
|
section_name);
|
1237 |
|
|
}
|
1238 |
|
|
}
|
1239 |
|
|
|
1240 |
|
|
/* Try the executable files, if "trust-readonly-sections" is set. */
|
1241 |
|
|
if (readbuf != NULL && trust_readonly)
|
1242 |
|
|
{
|
1243 |
|
|
struct target_section *secp;
|
1244 |
|
|
struct target_section_table *table;
|
1245 |
|
|
|
1246 |
|
|
secp = target_section_by_addr (ops, memaddr);
|
1247 |
|
|
if (secp != NULL
|
1248 |
|
|
&& (bfd_get_section_flags (secp->bfd, secp->the_bfd_section)
|
1249 |
|
|
& SEC_READONLY))
|
1250 |
|
|
{
|
1251 |
|
|
table = target_get_section_table (ops);
|
1252 |
|
|
return section_table_xfer_memory_partial (readbuf, writebuf,
|
1253 |
|
|
memaddr, len,
|
1254 |
|
|
table->sections,
|
1255 |
|
|
table->sections_end,
|
1256 |
|
|
NULL);
|
1257 |
|
|
}
|
1258 |
|
|
}
|
1259 |
|
|
|
1260 |
|
|
/* Try GDB's internal data cache. */
|
1261 |
|
|
region = lookup_mem_region (memaddr);
|
1262 |
|
|
/* region->hi == 0 means there's no upper bound. */
|
1263 |
|
|
if (memaddr + len < region->hi || region->hi == 0)
|
1264 |
|
|
reg_len = len;
|
1265 |
|
|
else
|
1266 |
|
|
reg_len = region->hi - memaddr;
|
1267 |
|
|
|
1268 |
|
|
switch (region->attrib.mode)
|
1269 |
|
|
{
|
1270 |
|
|
case MEM_RO:
|
1271 |
|
|
if (writebuf != NULL)
|
1272 |
|
|
return -1;
|
1273 |
|
|
break;
|
1274 |
|
|
|
1275 |
|
|
case MEM_WO:
|
1276 |
|
|
if (readbuf != NULL)
|
1277 |
|
|
return -1;
|
1278 |
|
|
break;
|
1279 |
|
|
|
1280 |
|
|
case MEM_FLASH:
|
1281 |
|
|
/* We only support writing to flash during "load" for now. */
|
1282 |
|
|
if (writebuf != NULL)
|
1283 |
|
|
error (_("Writing to flash memory forbidden in this context"));
|
1284 |
|
|
break;
|
1285 |
|
|
|
1286 |
|
|
case MEM_NONE:
|
1287 |
|
|
return -1;
|
1288 |
|
|
}
|
1289 |
|
|
|
1290 |
|
|
if (!ptid_equal (inferior_ptid, null_ptid))
|
1291 |
|
|
inf = find_inferior_pid (ptid_get_pid (inferior_ptid));
|
1292 |
|
|
else
|
1293 |
|
|
inf = NULL;
|
1294 |
|
|
|
1295 |
|
|
if (inf != NULL
|
1296 |
|
|
/* The dcache reads whole cache lines; that doesn't play well
|
1297 |
|
|
with reading from a trace buffer, because reading outside of
|
1298 |
|
|
the collected memory range fails. */
|
1299 |
|
|
&& get_traceframe_number () == -1
|
1300 |
|
|
&& (region->attrib.cache
|
1301 |
|
|
|| (stack_cache_enabled_p && object == TARGET_OBJECT_STACK_MEMORY)))
|
1302 |
|
|
{
|
1303 |
|
|
if (readbuf != NULL)
|
1304 |
|
|
res = dcache_xfer_memory (ops, target_dcache, memaddr, readbuf,
|
1305 |
|
|
reg_len, 0);
|
1306 |
|
|
else
|
1307 |
|
|
/* FIXME drow/2006-08-09: If we're going to preserve const
|
1308 |
|
|
correctness dcache_xfer_memory should take readbuf and
|
1309 |
|
|
writebuf. */
|
1310 |
|
|
res = dcache_xfer_memory (ops, target_dcache, memaddr,
|
1311 |
|
|
(void *) writebuf,
|
1312 |
|
|
reg_len, 1);
|
1313 |
|
|
if (res <= 0)
|
1314 |
|
|
return -1;
|
1315 |
|
|
else
|
1316 |
|
|
{
|
1317 |
|
|
if (readbuf && !show_memory_breakpoints)
|
1318 |
|
|
breakpoint_restore_shadows (readbuf, memaddr, reg_len);
|
1319 |
|
|
return res;
|
1320 |
|
|
}
|
1321 |
|
|
}
|
1322 |
|
|
|
1323 |
|
|
/* If none of those methods found the memory we wanted, fall back
|
1324 |
|
|
to a target partial transfer. Normally a single call to
|
1325 |
|
|
to_xfer_partial is enough; if it doesn't recognize an object
|
1326 |
|
|
it will call the to_xfer_partial of the next target down.
|
1327 |
|
|
But for memory this won't do. Memory is the only target
|
1328 |
|
|
object which can be read from more than one valid target.
|
1329 |
|
|
A core file, for instance, could have some of memory but
|
1330 |
|
|
delegate other bits to the target below it. So, we must
|
1331 |
|
|
manually try all targets. */
|
1332 |
|
|
|
1333 |
|
|
do
|
1334 |
|
|
{
|
1335 |
|
|
res = ops->to_xfer_partial (ops, TARGET_OBJECT_MEMORY, NULL,
|
1336 |
|
|
readbuf, writebuf, memaddr, reg_len);
|
1337 |
|
|
if (res > 0)
|
1338 |
|
|
break;
|
1339 |
|
|
|
1340 |
|
|
/* We want to continue past core files to executables, but not
|
1341 |
|
|
past a running target's memory. */
|
1342 |
|
|
if (ops->to_has_all_memory (ops))
|
1343 |
|
|
break;
|
1344 |
|
|
|
1345 |
|
|
ops = ops->beneath;
|
1346 |
|
|
}
|
1347 |
|
|
while (ops != NULL);
|
1348 |
|
|
|
1349 |
|
|
if (readbuf && !show_memory_breakpoints)
|
1350 |
|
|
breakpoint_restore_shadows (readbuf, memaddr, reg_len);
|
1351 |
|
|
|
1352 |
|
|
/* Make sure the cache gets updated no matter what - if we are writing
|
1353 |
|
|
to the stack. Even if this write is not tagged as such, we still need
|
1354 |
|
|
to update the cache. */
|
1355 |
|
|
|
1356 |
|
|
if (res > 0
|
1357 |
|
|
&& inf != NULL
|
1358 |
|
|
&& writebuf != NULL
|
1359 |
|
|
&& !region->attrib.cache
|
1360 |
|
|
&& stack_cache_enabled_p
|
1361 |
|
|
&& object != TARGET_OBJECT_STACK_MEMORY)
|
1362 |
|
|
{
|
1363 |
|
|
dcache_update (target_dcache, memaddr, (void *) writebuf, res);
|
1364 |
|
|
}
|
1365 |
|
|
|
1366 |
|
|
/* If we still haven't got anything, return the last error. We
|
1367 |
|
|
give up. */
|
1368 |
|
|
return res;
|
1369 |
|
|
}
|
1370 |
|
|
|
1371 |
|
|
static void
|
1372 |
|
|
restore_show_memory_breakpoints (void *arg)
|
1373 |
|
|
{
|
1374 |
|
|
show_memory_breakpoints = (uintptr_t) arg;
|
1375 |
|
|
}
|
1376 |
|
|
|
1377 |
|
|
struct cleanup *
|
1378 |
|
|
make_show_memory_breakpoints_cleanup (int show)
|
1379 |
|
|
{
|
1380 |
|
|
int current = show_memory_breakpoints;
|
1381 |
|
|
show_memory_breakpoints = show;
|
1382 |
|
|
|
1383 |
|
|
return make_cleanup (restore_show_memory_breakpoints,
|
1384 |
|
|
(void *) (uintptr_t) current);
|
1385 |
|
|
}
|
1386 |
|
|
|
1387 |
|
|
/* For docs see target.h, to_xfer_partial. */
|
1388 |
|
|
|
1389 |
|
|
static LONGEST
|
1390 |
|
|
target_xfer_partial (struct target_ops *ops,
|
1391 |
|
|
enum target_object object, const char *annex,
|
1392 |
|
|
void *readbuf, const void *writebuf,
|
1393 |
|
|
ULONGEST offset, LONGEST len)
|
1394 |
|
|
{
|
1395 |
|
|
LONGEST retval;
|
1396 |
|
|
|
1397 |
|
|
gdb_assert (ops->to_xfer_partial != NULL);
|
1398 |
|
|
|
1399 |
|
|
/* If this is a memory transfer, let the memory-specific code
|
1400 |
|
|
have a look at it instead. Memory transfers are more
|
1401 |
|
|
complicated. */
|
1402 |
|
|
if (object == TARGET_OBJECT_MEMORY || object == TARGET_OBJECT_STACK_MEMORY)
|
1403 |
|
|
retval = memory_xfer_partial (ops, object, readbuf,
|
1404 |
|
|
writebuf, offset, len);
|
1405 |
|
|
else
|
1406 |
|
|
{
|
1407 |
|
|
enum target_object raw_object = object;
|
1408 |
|
|
|
1409 |
|
|
/* If this is a raw memory transfer, request the normal
|
1410 |
|
|
memory object from other layers. */
|
1411 |
|
|
if (raw_object == TARGET_OBJECT_RAW_MEMORY)
|
1412 |
|
|
raw_object = TARGET_OBJECT_MEMORY;
|
1413 |
|
|
|
1414 |
|
|
retval = ops->to_xfer_partial (ops, raw_object, annex, readbuf,
|
1415 |
|
|
writebuf, offset, len);
|
1416 |
|
|
}
|
1417 |
|
|
|
1418 |
|
|
if (targetdebug)
|
1419 |
|
|
{
|
1420 |
|
|
const unsigned char *myaddr = NULL;
|
1421 |
|
|
|
1422 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
1423 |
|
|
"%s:target_xfer_partial (%d, %s, %s, %s, %s, %s) = %s",
|
1424 |
|
|
ops->to_shortname,
|
1425 |
|
|
(int) object,
|
1426 |
|
|
(annex ? annex : "(null)"),
|
1427 |
|
|
host_address_to_string (readbuf),
|
1428 |
|
|
host_address_to_string (writebuf),
|
1429 |
|
|
core_addr_to_string_nz (offset),
|
1430 |
|
|
plongest (len), plongest (retval));
|
1431 |
|
|
|
1432 |
|
|
if (readbuf)
|
1433 |
|
|
myaddr = readbuf;
|
1434 |
|
|
if (writebuf)
|
1435 |
|
|
myaddr = writebuf;
|
1436 |
|
|
if (retval > 0 && myaddr != NULL)
|
1437 |
|
|
{
|
1438 |
|
|
int i;
|
1439 |
|
|
|
1440 |
|
|
fputs_unfiltered (", bytes =", gdb_stdlog);
|
1441 |
|
|
for (i = 0; i < retval; i++)
|
1442 |
|
|
{
|
1443 |
|
|
if ((((intptr_t) &(myaddr[i])) & 0xf) == 0)
|
1444 |
|
|
{
|
1445 |
|
|
if (targetdebug < 2 && i > 0)
|
1446 |
|
|
{
|
1447 |
|
|
fprintf_unfiltered (gdb_stdlog, " ...");
|
1448 |
|
|
break;
|
1449 |
|
|
}
|
1450 |
|
|
fprintf_unfiltered (gdb_stdlog, "\n");
|
1451 |
|
|
}
|
1452 |
|
|
|
1453 |
|
|
fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff);
|
1454 |
|
|
}
|
1455 |
|
|
}
|
1456 |
|
|
|
1457 |
|
|
fputc_unfiltered ('\n', gdb_stdlog);
|
1458 |
|
|
}
|
1459 |
|
|
return retval;
|
1460 |
|
|
}
|
1461 |
|
|
|
1462 |
|
|
/* Read LEN bytes of target memory at address MEMADDR, placing the results in
|
1463 |
|
|
GDB's memory at MYADDR. Returns either 0 for success or an errno value
|
1464 |
|
|
if any error occurs.
|
1465 |
|
|
|
1466 |
|
|
If an error occurs, no guarantee is made about the contents of the data at
|
1467 |
|
|
MYADDR. In particular, the caller should not depend upon partial reads
|
1468 |
|
|
filling the buffer with good data. There is no way for the caller to know
|
1469 |
|
|
how much good data might have been transfered anyway. Callers that can
|
1470 |
|
|
deal with partial reads should call target_read (which will retry until
|
1471 |
|
|
it makes no progress, and then return how much was transferred). */
|
1472 |
|
|
|
1473 |
|
|
int
|
1474 |
|
|
target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len)
|
1475 |
|
|
{
|
1476 |
|
|
/* Dispatch to the topmost target, not the flattened current_target.
|
1477 |
|
|
Memory accesses check target->to_has_(all_)memory, and the
|
1478 |
|
|
flattened target doesn't inherit those. */
|
1479 |
|
|
if (target_read (current_target.beneath, TARGET_OBJECT_MEMORY, NULL,
|
1480 |
|
|
myaddr, memaddr, len) == len)
|
1481 |
|
|
return 0;
|
1482 |
|
|
else
|
1483 |
|
|
return EIO;
|
1484 |
|
|
}
|
1485 |
|
|
|
1486 |
|
|
/* Like target_read_memory, but specify explicitly that this is a read from
|
1487 |
|
|
the target's stack. This may trigger different cache behavior. */
|
1488 |
|
|
|
1489 |
|
|
int
|
1490 |
|
|
target_read_stack (CORE_ADDR memaddr, gdb_byte *myaddr, int len)
|
1491 |
|
|
{
|
1492 |
|
|
/* Dispatch to the topmost target, not the flattened current_target.
|
1493 |
|
|
Memory accesses check target->to_has_(all_)memory, and the
|
1494 |
|
|
flattened target doesn't inherit those. */
|
1495 |
|
|
|
1496 |
|
|
if (target_read (current_target.beneath, TARGET_OBJECT_STACK_MEMORY, NULL,
|
1497 |
|
|
myaddr, memaddr, len) == len)
|
1498 |
|
|
return 0;
|
1499 |
|
|
else
|
1500 |
|
|
return EIO;
|
1501 |
|
|
}
|
1502 |
|
|
|
1503 |
|
|
/* Write LEN bytes from MYADDR to target memory at address MEMADDR.
|
1504 |
|
|
Returns either 0 for success or an errno value if any error occurs.
|
1505 |
|
|
If an error occurs, no guarantee is made about how much data got written.
|
1506 |
|
|
Callers that can deal with partial writes should call target_write. */
|
1507 |
|
|
|
1508 |
|
|
int
|
1509 |
|
|
target_write_memory (CORE_ADDR memaddr, const gdb_byte *myaddr, int len)
|
1510 |
|
|
{
|
1511 |
|
|
/* Dispatch to the topmost target, not the flattened current_target.
|
1512 |
|
|
Memory accesses check target->to_has_(all_)memory, and the
|
1513 |
|
|
flattened target doesn't inherit those. */
|
1514 |
|
|
if (target_write (current_target.beneath, TARGET_OBJECT_MEMORY, NULL,
|
1515 |
|
|
myaddr, memaddr, len) == len)
|
1516 |
|
|
return 0;
|
1517 |
|
|
else
|
1518 |
|
|
return EIO;
|
1519 |
|
|
}
|
1520 |
|
|
|
1521 |
|
|
/* Fetch the target's memory map. */
|
1522 |
|
|
|
1523 |
|
|
VEC(mem_region_s) *
|
1524 |
|
|
target_memory_map (void)
|
1525 |
|
|
{
|
1526 |
|
|
VEC(mem_region_s) *result;
|
1527 |
|
|
struct mem_region *last_one, *this_one;
|
1528 |
|
|
int ix;
|
1529 |
|
|
struct target_ops *t;
|
1530 |
|
|
|
1531 |
|
|
if (targetdebug)
|
1532 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_memory_map ()\n");
|
1533 |
|
|
|
1534 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
1535 |
|
|
if (t->to_memory_map != NULL)
|
1536 |
|
|
break;
|
1537 |
|
|
|
1538 |
|
|
if (t == NULL)
|
1539 |
|
|
return NULL;
|
1540 |
|
|
|
1541 |
|
|
result = t->to_memory_map (t);
|
1542 |
|
|
if (result == NULL)
|
1543 |
|
|
return NULL;
|
1544 |
|
|
|
1545 |
|
|
qsort (VEC_address (mem_region_s, result),
|
1546 |
|
|
VEC_length (mem_region_s, result),
|
1547 |
|
|
sizeof (struct mem_region), mem_region_cmp);
|
1548 |
|
|
|
1549 |
|
|
/* Check that regions do not overlap. Simultaneously assign
|
1550 |
|
|
a numbering for the "mem" commands to use to refer to
|
1551 |
|
|
each region. */
|
1552 |
|
|
last_one = NULL;
|
1553 |
|
|
for (ix = 0; VEC_iterate (mem_region_s, result, ix, this_one); ix++)
|
1554 |
|
|
{
|
1555 |
|
|
this_one->number = ix;
|
1556 |
|
|
|
1557 |
|
|
if (last_one && last_one->hi > this_one->lo)
|
1558 |
|
|
{
|
1559 |
|
|
warning (_("Overlapping regions in memory map: ignoring"));
|
1560 |
|
|
VEC_free (mem_region_s, result);
|
1561 |
|
|
return NULL;
|
1562 |
|
|
}
|
1563 |
|
|
last_one = this_one;
|
1564 |
|
|
}
|
1565 |
|
|
|
1566 |
|
|
return result;
|
1567 |
|
|
}
|
1568 |
|
|
|
1569 |
|
|
void
|
1570 |
|
|
target_flash_erase (ULONGEST address, LONGEST length)
|
1571 |
|
|
{
|
1572 |
|
|
struct target_ops *t;
|
1573 |
|
|
|
1574 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
1575 |
|
|
if (t->to_flash_erase != NULL)
|
1576 |
|
|
{
|
1577 |
|
|
if (targetdebug)
|
1578 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_flash_erase (%s, %s)\n",
|
1579 |
|
|
hex_string (address), phex (length, 0));
|
1580 |
|
|
t->to_flash_erase (t, address, length);
|
1581 |
|
|
return;
|
1582 |
|
|
}
|
1583 |
|
|
|
1584 |
|
|
tcomplain ();
|
1585 |
|
|
}
|
1586 |
|
|
|
1587 |
|
|
void
|
1588 |
|
|
target_flash_done (void)
|
1589 |
|
|
{
|
1590 |
|
|
struct target_ops *t;
|
1591 |
|
|
|
1592 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
1593 |
|
|
if (t->to_flash_done != NULL)
|
1594 |
|
|
{
|
1595 |
|
|
if (targetdebug)
|
1596 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_flash_done\n");
|
1597 |
|
|
t->to_flash_done (t);
|
1598 |
|
|
return;
|
1599 |
|
|
}
|
1600 |
|
|
|
1601 |
|
|
tcomplain ();
|
1602 |
|
|
}
|
1603 |
|
|
|
1604 |
|
|
static void
|
1605 |
|
|
show_trust_readonly (struct ui_file *file, int from_tty,
|
1606 |
|
|
struct cmd_list_element *c, const char *value)
|
1607 |
|
|
{
|
1608 |
|
|
fprintf_filtered (file, _("\
|
1609 |
|
|
Mode for reading from readonly sections is %s.\n"),
|
1610 |
|
|
value);
|
1611 |
|
|
}
|
1612 |
|
|
|
1613 |
|
|
/* More generic transfers. */
|
1614 |
|
|
|
1615 |
|
|
static LONGEST
|
1616 |
|
|
default_xfer_partial (struct target_ops *ops, enum target_object object,
|
1617 |
|
|
const char *annex, gdb_byte *readbuf,
|
1618 |
|
|
const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
|
1619 |
|
|
{
|
1620 |
|
|
if (object == TARGET_OBJECT_MEMORY
|
1621 |
|
|
&& ops->deprecated_xfer_memory != NULL)
|
1622 |
|
|
/* If available, fall back to the target's
|
1623 |
|
|
"deprecated_xfer_memory" method. */
|
1624 |
|
|
{
|
1625 |
|
|
int xfered = -1;
|
1626 |
|
|
errno = 0;
|
1627 |
|
|
if (writebuf != NULL)
|
1628 |
|
|
{
|
1629 |
|
|
void *buffer = xmalloc (len);
|
1630 |
|
|
struct cleanup *cleanup = make_cleanup (xfree, buffer);
|
1631 |
|
|
memcpy (buffer, writebuf, len);
|
1632 |
|
|
xfered = ops->deprecated_xfer_memory (offset, buffer, len,
|
1633 |
|
|
1/*write*/, NULL, ops);
|
1634 |
|
|
do_cleanups (cleanup);
|
1635 |
|
|
}
|
1636 |
|
|
if (readbuf != NULL)
|
1637 |
|
|
xfered = ops->deprecated_xfer_memory (offset, readbuf, len,
|
1638 |
|
|
0/*read*/, NULL, ops);
|
1639 |
|
|
if (xfered > 0)
|
1640 |
|
|
return xfered;
|
1641 |
|
|
else if (xfered == 0 && errno == 0)
|
1642 |
|
|
/* "deprecated_xfer_memory" uses 0, cross checked against
|
1643 |
|
|
ERRNO as one indication of an error. */
|
1644 |
|
|
return 0;
|
1645 |
|
|
else
|
1646 |
|
|
return -1;
|
1647 |
|
|
}
|
1648 |
|
|
else if (ops->beneath != NULL)
|
1649 |
|
|
return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
|
1650 |
|
|
readbuf, writebuf, offset, len);
|
1651 |
|
|
else
|
1652 |
|
|
return -1;
|
1653 |
|
|
}
|
1654 |
|
|
|
1655 |
|
|
/* The xfer_partial handler for the topmost target. Unlike the default,
|
1656 |
|
|
it does not need to handle memory specially; it just passes all
|
1657 |
|
|
requests down the stack. */
|
1658 |
|
|
|
1659 |
|
|
static LONGEST
|
1660 |
|
|
current_xfer_partial (struct target_ops *ops, enum target_object object,
|
1661 |
|
|
const char *annex, gdb_byte *readbuf,
|
1662 |
|
|
const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
|
1663 |
|
|
{
|
1664 |
|
|
if (ops->beneath != NULL)
|
1665 |
|
|
return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
|
1666 |
|
|
readbuf, writebuf, offset, len);
|
1667 |
|
|
else
|
1668 |
|
|
return -1;
|
1669 |
|
|
}
|
1670 |
|
|
|
1671 |
|
|
/* Target vector read/write partial wrapper functions. */
|
1672 |
|
|
|
1673 |
|
|
static LONGEST
|
1674 |
|
|
target_read_partial (struct target_ops *ops,
|
1675 |
|
|
enum target_object object,
|
1676 |
|
|
const char *annex, gdb_byte *buf,
|
1677 |
|
|
ULONGEST offset, LONGEST len)
|
1678 |
|
|
{
|
1679 |
|
|
return target_xfer_partial (ops, object, annex, buf, NULL, offset, len);
|
1680 |
|
|
}
|
1681 |
|
|
|
1682 |
|
|
static LONGEST
|
1683 |
|
|
target_write_partial (struct target_ops *ops,
|
1684 |
|
|
enum target_object object,
|
1685 |
|
|
const char *annex, const gdb_byte *buf,
|
1686 |
|
|
ULONGEST offset, LONGEST len)
|
1687 |
|
|
{
|
1688 |
|
|
return target_xfer_partial (ops, object, annex, NULL, buf, offset, len);
|
1689 |
|
|
}
|
1690 |
|
|
|
1691 |
|
|
/* Wrappers to perform the full transfer. */
|
1692 |
|
|
|
1693 |
|
|
/* For docs on target_read see target.h. */
|
1694 |
|
|
|
1695 |
|
|
LONGEST
|
1696 |
|
|
target_read (struct target_ops *ops,
|
1697 |
|
|
enum target_object object,
|
1698 |
|
|
const char *annex, gdb_byte *buf,
|
1699 |
|
|
ULONGEST offset, LONGEST len)
|
1700 |
|
|
{
|
1701 |
|
|
LONGEST xfered = 0;
|
1702 |
|
|
while (xfered < len)
|
1703 |
|
|
{
|
1704 |
|
|
LONGEST xfer = target_read_partial (ops, object, annex,
|
1705 |
|
|
(gdb_byte *) buf + xfered,
|
1706 |
|
|
offset + xfered, len - xfered);
|
1707 |
|
|
/* Call an observer, notifying them of the xfer progress? */
|
1708 |
|
|
if (xfer == 0)
|
1709 |
|
|
return xfered;
|
1710 |
|
|
if (xfer < 0)
|
1711 |
|
|
return -1;
|
1712 |
|
|
xfered += xfer;
|
1713 |
|
|
QUIT;
|
1714 |
|
|
}
|
1715 |
|
|
return len;
|
1716 |
|
|
}
|
1717 |
|
|
|
1718 |
|
|
LONGEST
|
1719 |
|
|
target_read_until_error (struct target_ops *ops,
|
1720 |
|
|
enum target_object object,
|
1721 |
|
|
const char *annex, gdb_byte *buf,
|
1722 |
|
|
ULONGEST offset, LONGEST len)
|
1723 |
|
|
{
|
1724 |
|
|
LONGEST xfered = 0;
|
1725 |
|
|
while (xfered < len)
|
1726 |
|
|
{
|
1727 |
|
|
LONGEST xfer = target_read_partial (ops, object, annex,
|
1728 |
|
|
(gdb_byte *) buf + xfered,
|
1729 |
|
|
offset + xfered, len - xfered);
|
1730 |
|
|
/* Call an observer, notifying them of the xfer progress? */
|
1731 |
|
|
if (xfer == 0)
|
1732 |
|
|
return xfered;
|
1733 |
|
|
if (xfer < 0)
|
1734 |
|
|
{
|
1735 |
|
|
/* We've got an error. Try to read in smaller blocks. */
|
1736 |
|
|
ULONGEST start = offset + xfered;
|
1737 |
|
|
ULONGEST remaining = len - xfered;
|
1738 |
|
|
ULONGEST half;
|
1739 |
|
|
|
1740 |
|
|
/* If an attempt was made to read a random memory address,
|
1741 |
|
|
it's likely that the very first byte is not accessible.
|
1742 |
|
|
Try reading the first byte, to avoid doing log N tries
|
1743 |
|
|
below. */
|
1744 |
|
|
xfer = target_read_partial (ops, object, annex,
|
1745 |
|
|
(gdb_byte *) buf + xfered, start, 1);
|
1746 |
|
|
if (xfer <= 0)
|
1747 |
|
|
return xfered;
|
1748 |
|
|
start += 1;
|
1749 |
|
|
remaining -= 1;
|
1750 |
|
|
half = remaining/2;
|
1751 |
|
|
|
1752 |
|
|
while (half > 0)
|
1753 |
|
|
{
|
1754 |
|
|
xfer = target_read_partial (ops, object, annex,
|
1755 |
|
|
(gdb_byte *) buf + xfered,
|
1756 |
|
|
start, half);
|
1757 |
|
|
if (xfer == 0)
|
1758 |
|
|
return xfered;
|
1759 |
|
|
if (xfer < 0)
|
1760 |
|
|
{
|
1761 |
|
|
remaining = half;
|
1762 |
|
|
}
|
1763 |
|
|
else
|
1764 |
|
|
{
|
1765 |
|
|
/* We have successfully read the first half. So, the
|
1766 |
|
|
error must be in the second half. Adjust start and
|
1767 |
|
|
remaining to point at the second half. */
|
1768 |
|
|
xfered += xfer;
|
1769 |
|
|
start += xfer;
|
1770 |
|
|
remaining -= xfer;
|
1771 |
|
|
}
|
1772 |
|
|
half = remaining/2;
|
1773 |
|
|
}
|
1774 |
|
|
|
1775 |
|
|
return xfered;
|
1776 |
|
|
}
|
1777 |
|
|
xfered += xfer;
|
1778 |
|
|
QUIT;
|
1779 |
|
|
}
|
1780 |
|
|
return len;
|
1781 |
|
|
}
|
1782 |
|
|
|
1783 |
|
|
/* An alternative to target_write with progress callbacks. */
|
1784 |
|
|
|
1785 |
|
|
LONGEST
|
1786 |
|
|
target_write_with_progress (struct target_ops *ops,
|
1787 |
|
|
enum target_object object,
|
1788 |
|
|
const char *annex, const gdb_byte *buf,
|
1789 |
|
|
ULONGEST offset, LONGEST len,
|
1790 |
|
|
void (*progress) (ULONGEST, void *), void *baton)
|
1791 |
|
|
{
|
1792 |
|
|
LONGEST xfered = 0;
|
1793 |
|
|
|
1794 |
|
|
/* Give the progress callback a chance to set up. */
|
1795 |
|
|
if (progress)
|
1796 |
|
|
(*progress) (0, baton);
|
1797 |
|
|
|
1798 |
|
|
while (xfered < len)
|
1799 |
|
|
{
|
1800 |
|
|
LONGEST xfer = target_write_partial (ops, object, annex,
|
1801 |
|
|
(gdb_byte *) buf + xfered,
|
1802 |
|
|
offset + xfered, len - xfered);
|
1803 |
|
|
|
1804 |
|
|
if (xfer == 0)
|
1805 |
|
|
return xfered;
|
1806 |
|
|
if (xfer < 0)
|
1807 |
|
|
return -1;
|
1808 |
|
|
|
1809 |
|
|
if (progress)
|
1810 |
|
|
(*progress) (xfer, baton);
|
1811 |
|
|
|
1812 |
|
|
xfered += xfer;
|
1813 |
|
|
QUIT;
|
1814 |
|
|
}
|
1815 |
|
|
return len;
|
1816 |
|
|
}
|
1817 |
|
|
|
1818 |
|
|
/* For docs on target_write see target.h. */
|
1819 |
|
|
|
1820 |
|
|
LONGEST
|
1821 |
|
|
target_write (struct target_ops *ops,
|
1822 |
|
|
enum target_object object,
|
1823 |
|
|
const char *annex, const gdb_byte *buf,
|
1824 |
|
|
ULONGEST offset, LONGEST len)
|
1825 |
|
|
{
|
1826 |
|
|
return target_write_with_progress (ops, object, annex, buf, offset, len,
|
1827 |
|
|
NULL, NULL);
|
1828 |
|
|
}
|
1829 |
|
|
|
1830 |
|
|
/* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
|
1831 |
|
|
the size of the transferred data. PADDING additional bytes are
|
1832 |
|
|
available in *BUF_P. This is a helper function for
|
1833 |
|
|
target_read_alloc; see the declaration of that function for more
|
1834 |
|
|
information. */
|
1835 |
|
|
|
1836 |
|
|
static LONGEST
|
1837 |
|
|
target_read_alloc_1 (struct target_ops *ops, enum target_object object,
|
1838 |
|
|
const char *annex, gdb_byte **buf_p, int padding)
|
1839 |
|
|
{
|
1840 |
|
|
size_t buf_alloc, buf_pos;
|
1841 |
|
|
gdb_byte *buf;
|
1842 |
|
|
LONGEST n;
|
1843 |
|
|
|
1844 |
|
|
/* This function does not have a length parameter; it reads the
|
1845 |
|
|
entire OBJECT). Also, it doesn't support objects fetched partly
|
1846 |
|
|
from one target and partly from another (in a different stratum,
|
1847 |
|
|
e.g. a core file and an executable). Both reasons make it
|
1848 |
|
|
unsuitable for reading memory. */
|
1849 |
|
|
gdb_assert (object != TARGET_OBJECT_MEMORY);
|
1850 |
|
|
|
1851 |
|
|
/* Start by reading up to 4K at a time. The target will throttle
|
1852 |
|
|
this number down if necessary. */
|
1853 |
|
|
buf_alloc = 4096;
|
1854 |
|
|
buf = xmalloc (buf_alloc);
|
1855 |
|
|
buf_pos = 0;
|
1856 |
|
|
while (1)
|
1857 |
|
|
{
|
1858 |
|
|
n = target_read_partial (ops, object, annex, &buf[buf_pos],
|
1859 |
|
|
buf_pos, buf_alloc - buf_pos - padding);
|
1860 |
|
|
if (n < 0)
|
1861 |
|
|
{
|
1862 |
|
|
/* An error occurred. */
|
1863 |
|
|
xfree (buf);
|
1864 |
|
|
return -1;
|
1865 |
|
|
}
|
1866 |
|
|
else if (n == 0)
|
1867 |
|
|
{
|
1868 |
|
|
/* Read all there was. */
|
1869 |
|
|
if (buf_pos == 0)
|
1870 |
|
|
xfree (buf);
|
1871 |
|
|
else
|
1872 |
|
|
*buf_p = buf;
|
1873 |
|
|
return buf_pos;
|
1874 |
|
|
}
|
1875 |
|
|
|
1876 |
|
|
buf_pos += n;
|
1877 |
|
|
|
1878 |
|
|
/* If the buffer is filling up, expand it. */
|
1879 |
|
|
if (buf_alloc < buf_pos * 2)
|
1880 |
|
|
{
|
1881 |
|
|
buf_alloc *= 2;
|
1882 |
|
|
buf = xrealloc (buf, buf_alloc);
|
1883 |
|
|
}
|
1884 |
|
|
|
1885 |
|
|
QUIT;
|
1886 |
|
|
}
|
1887 |
|
|
}
|
1888 |
|
|
|
1889 |
|
|
/* Read OBJECT/ANNEX using OPS. Store the result in *BUF_P and return
|
1890 |
|
|
the size of the transferred data. See the declaration in "target.h"
|
1891 |
|
|
function for more information about the return value. */
|
1892 |
|
|
|
1893 |
|
|
LONGEST
|
1894 |
|
|
target_read_alloc (struct target_ops *ops, enum target_object object,
|
1895 |
|
|
const char *annex, gdb_byte **buf_p)
|
1896 |
|
|
{
|
1897 |
|
|
return target_read_alloc_1 (ops, object, annex, buf_p, 0);
|
1898 |
|
|
}
|
1899 |
|
|
|
1900 |
|
|
/* Read OBJECT/ANNEX using OPS. The result is NUL-terminated and
|
1901 |
|
|
returned as a string, allocated using xmalloc. If an error occurs
|
1902 |
|
|
or the transfer is unsupported, NULL is returned. Empty objects
|
1903 |
|
|
are returned as allocated but empty strings. A warning is issued
|
1904 |
|
|
if the result contains any embedded NUL bytes. */
|
1905 |
|
|
|
1906 |
|
|
char *
|
1907 |
|
|
target_read_stralloc (struct target_ops *ops, enum target_object object,
|
1908 |
|
|
const char *annex)
|
1909 |
|
|
{
|
1910 |
|
|
gdb_byte *buffer;
|
1911 |
|
|
LONGEST transferred;
|
1912 |
|
|
|
1913 |
|
|
transferred = target_read_alloc_1 (ops, object, annex, &buffer, 1);
|
1914 |
|
|
|
1915 |
|
|
if (transferred < 0)
|
1916 |
|
|
return NULL;
|
1917 |
|
|
|
1918 |
|
|
if (transferred == 0)
|
1919 |
|
|
return xstrdup ("");
|
1920 |
|
|
|
1921 |
|
|
buffer[transferred] = 0;
|
1922 |
|
|
if (strlen (buffer) < transferred)
|
1923 |
|
|
warning (_("target object %d, annex %s, "
|
1924 |
|
|
"contained unexpected null characters"),
|
1925 |
|
|
(int) object, annex ? annex : "(none)");
|
1926 |
|
|
|
1927 |
|
|
return (char *) buffer;
|
1928 |
|
|
}
|
1929 |
|
|
|
1930 |
|
|
/* Memory transfer methods. */
|
1931 |
|
|
|
1932 |
|
|
void
|
1933 |
|
|
get_target_memory (struct target_ops *ops, CORE_ADDR addr, gdb_byte *buf,
|
1934 |
|
|
LONGEST len)
|
1935 |
|
|
{
|
1936 |
|
|
/* This method is used to read from an alternate, non-current
|
1937 |
|
|
target. This read must bypass the overlay support (as symbols
|
1938 |
|
|
don't match this target), and GDB's internal cache (wrong cache
|
1939 |
|
|
for this target). */
|
1940 |
|
|
if (target_read (ops, TARGET_OBJECT_RAW_MEMORY, NULL, buf, addr, len)
|
1941 |
|
|
!= len)
|
1942 |
|
|
memory_error (EIO, addr);
|
1943 |
|
|
}
|
1944 |
|
|
|
1945 |
|
|
ULONGEST
|
1946 |
|
|
get_target_memory_unsigned (struct target_ops *ops,
|
1947 |
|
|
CORE_ADDR addr, int len, enum bfd_endian byte_order)
|
1948 |
|
|
{
|
1949 |
|
|
gdb_byte buf[sizeof (ULONGEST)];
|
1950 |
|
|
|
1951 |
|
|
gdb_assert (len <= sizeof (buf));
|
1952 |
|
|
get_target_memory (ops, addr, buf, len);
|
1953 |
|
|
return extract_unsigned_integer (buf, len, byte_order);
|
1954 |
|
|
}
|
1955 |
|
|
|
1956 |
|
|
static void
|
1957 |
|
|
target_info (char *args, int from_tty)
|
1958 |
|
|
{
|
1959 |
|
|
struct target_ops *t;
|
1960 |
|
|
int has_all_mem = 0;
|
1961 |
|
|
|
1962 |
|
|
if (symfile_objfile != NULL)
|
1963 |
|
|
printf_unfiltered (_("Symbols from \"%s\".\n"), symfile_objfile->name);
|
1964 |
|
|
|
1965 |
|
|
for (t = target_stack; t != NULL; t = t->beneath)
|
1966 |
|
|
{
|
1967 |
|
|
if (!(*t->to_has_memory) (t))
|
1968 |
|
|
continue;
|
1969 |
|
|
|
1970 |
|
|
if ((int) (t->to_stratum) <= (int) dummy_stratum)
|
1971 |
|
|
continue;
|
1972 |
|
|
if (has_all_mem)
|
1973 |
|
|
printf_unfiltered (_("\tWhile running this, GDB does not access memory from...\n"));
|
1974 |
|
|
printf_unfiltered ("%s:\n", t->to_longname);
|
1975 |
|
|
(t->to_files_info) (t);
|
1976 |
|
|
has_all_mem = (*t->to_has_all_memory) (t);
|
1977 |
|
|
}
|
1978 |
|
|
}
|
1979 |
|
|
|
1980 |
|
|
/* This function is called before any new inferior is created, e.g.
|
1981 |
|
|
by running a program, attaching, or connecting to a target.
|
1982 |
|
|
It cleans up any state from previous invocations which might
|
1983 |
|
|
change between runs. This is a subset of what target_preopen
|
1984 |
|
|
resets (things which might change between targets). */
|
1985 |
|
|
|
1986 |
|
|
void
|
1987 |
|
|
target_pre_inferior (int from_tty)
|
1988 |
|
|
{
|
1989 |
|
|
/* Clear out solib state. Otherwise the solib state of the previous
|
1990 |
|
|
inferior might have survived and is entirely wrong for the new
|
1991 |
|
|
target. This has been observed on GNU/Linux using glibc 2.3. How
|
1992 |
|
|
to reproduce:
|
1993 |
|
|
|
1994 |
|
|
bash$ ./foo&
|
1995 |
|
|
[1] 4711
|
1996 |
|
|
bash$ ./foo&
|
1997 |
|
|
[1] 4712
|
1998 |
|
|
bash$ gdb ./foo
|
1999 |
|
|
[...]
|
2000 |
|
|
(gdb) attach 4711
|
2001 |
|
|
(gdb) detach
|
2002 |
|
|
(gdb) attach 4712
|
2003 |
|
|
Cannot access memory at address 0xdeadbeef
|
2004 |
|
|
*/
|
2005 |
|
|
|
2006 |
|
|
/* In some OSs, the shared library list is the same/global/shared
|
2007 |
|
|
across inferiors. If code is shared between processes, so are
|
2008 |
|
|
memory regions and features. */
|
2009 |
|
|
if (!gdbarch_has_global_solist (target_gdbarch))
|
2010 |
|
|
{
|
2011 |
|
|
no_shared_libraries (NULL, from_tty);
|
2012 |
|
|
|
2013 |
|
|
invalidate_target_mem_regions ();
|
2014 |
|
|
|
2015 |
|
|
target_clear_description ();
|
2016 |
|
|
}
|
2017 |
|
|
}
|
2018 |
|
|
|
2019 |
|
|
/* Callback for iterate_over_inferiors. Gets rid of the given
|
2020 |
|
|
inferior. */
|
2021 |
|
|
|
2022 |
|
|
static int
|
2023 |
|
|
dispose_inferior (struct inferior *inf, void *args)
|
2024 |
|
|
{
|
2025 |
|
|
struct thread_info *thread;
|
2026 |
|
|
|
2027 |
|
|
thread = any_thread_of_process (inf->pid);
|
2028 |
|
|
if (thread)
|
2029 |
|
|
{
|
2030 |
|
|
switch_to_thread (thread->ptid);
|
2031 |
|
|
|
2032 |
|
|
/* Core inferiors actually should be detached, not killed. */
|
2033 |
|
|
if (target_has_execution)
|
2034 |
|
|
target_kill ();
|
2035 |
|
|
else
|
2036 |
|
|
target_detach (NULL, 0);
|
2037 |
|
|
}
|
2038 |
|
|
|
2039 |
|
|
return 0;
|
2040 |
|
|
}
|
2041 |
|
|
|
2042 |
|
|
/* This is to be called by the open routine before it does
|
2043 |
|
|
anything. */
|
2044 |
|
|
|
2045 |
|
|
void
|
2046 |
|
|
target_preopen (int from_tty)
|
2047 |
|
|
{
|
2048 |
|
|
dont_repeat ();
|
2049 |
|
|
|
2050 |
|
|
if (have_inferiors ())
|
2051 |
|
|
{
|
2052 |
|
|
if (!from_tty
|
2053 |
|
|
|| !have_live_inferiors ()
|
2054 |
|
|
|| query (_("A program is being debugged already. Kill it? ")))
|
2055 |
|
|
iterate_over_inferiors (dispose_inferior, NULL);
|
2056 |
|
|
else
|
2057 |
|
|
error (_("Program not killed."));
|
2058 |
|
|
}
|
2059 |
|
|
|
2060 |
|
|
/* Calling target_kill may remove the target from the stack. But if
|
2061 |
|
|
it doesn't (which seems like a win for UDI), remove it now. */
|
2062 |
|
|
/* Leave the exec target, though. The user may be switching from a
|
2063 |
|
|
live process to a core of the same program. */
|
2064 |
|
|
pop_all_targets_above (file_stratum, 0);
|
2065 |
|
|
|
2066 |
|
|
target_pre_inferior (from_tty);
|
2067 |
|
|
}
|
2068 |
|
|
|
2069 |
|
|
/* Detach a target after doing deferred register stores. */
|
2070 |
|
|
|
2071 |
|
|
void
|
2072 |
|
|
target_detach (char *args, int from_tty)
|
2073 |
|
|
{
|
2074 |
|
|
struct target_ops* t;
|
2075 |
|
|
|
2076 |
|
|
if (gdbarch_has_global_breakpoints (target_gdbarch))
|
2077 |
|
|
/* Don't remove global breakpoints here. They're removed on
|
2078 |
|
|
disconnection from the target. */
|
2079 |
|
|
;
|
2080 |
|
|
else
|
2081 |
|
|
/* If we're in breakpoints-always-inserted mode, have to remove
|
2082 |
|
|
them before detaching. */
|
2083 |
|
|
remove_breakpoints_pid (PIDGET (inferior_ptid));
|
2084 |
|
|
|
2085 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2086 |
|
|
{
|
2087 |
|
|
if (t->to_detach != NULL)
|
2088 |
|
|
{
|
2089 |
|
|
t->to_detach (t, args, from_tty);
|
2090 |
|
|
if (targetdebug)
|
2091 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n",
|
2092 |
|
|
args, from_tty);
|
2093 |
|
|
return;
|
2094 |
|
|
}
|
2095 |
|
|
}
|
2096 |
|
|
|
2097 |
|
|
internal_error (__FILE__, __LINE__, "could not find a target to detach");
|
2098 |
|
|
}
|
2099 |
|
|
|
2100 |
|
|
void
|
2101 |
|
|
target_disconnect (char *args, int from_tty)
|
2102 |
|
|
{
|
2103 |
|
|
struct target_ops *t;
|
2104 |
|
|
|
2105 |
|
|
/* If we're in breakpoints-always-inserted mode or if breakpoints
|
2106 |
|
|
are global across processes, we have to remove them before
|
2107 |
|
|
disconnecting. */
|
2108 |
|
|
remove_breakpoints ();
|
2109 |
|
|
|
2110 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2111 |
|
|
if (t->to_disconnect != NULL)
|
2112 |
|
|
{
|
2113 |
|
|
if (targetdebug)
|
2114 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_disconnect (%s, %d)\n",
|
2115 |
|
|
args, from_tty);
|
2116 |
|
|
t->to_disconnect (t, args, from_tty);
|
2117 |
|
|
return;
|
2118 |
|
|
}
|
2119 |
|
|
|
2120 |
|
|
tcomplain ();
|
2121 |
|
|
}
|
2122 |
|
|
|
2123 |
|
|
ptid_t
|
2124 |
|
|
target_wait (ptid_t ptid, struct target_waitstatus *status, int options)
|
2125 |
|
|
{
|
2126 |
|
|
struct target_ops *t;
|
2127 |
|
|
|
2128 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2129 |
|
|
{
|
2130 |
|
|
if (t->to_wait != NULL)
|
2131 |
|
|
{
|
2132 |
|
|
ptid_t retval = (*t->to_wait) (t, ptid, status, options);
|
2133 |
|
|
|
2134 |
|
|
if (targetdebug)
|
2135 |
|
|
{
|
2136 |
|
|
char *status_string;
|
2137 |
|
|
|
2138 |
|
|
status_string = target_waitstatus_to_string (status);
|
2139 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
2140 |
|
|
"target_wait (%d, status) = %d, %s\n",
|
2141 |
|
|
PIDGET (ptid), PIDGET (retval),
|
2142 |
|
|
status_string);
|
2143 |
|
|
xfree (status_string);
|
2144 |
|
|
}
|
2145 |
|
|
|
2146 |
|
|
return retval;
|
2147 |
|
|
}
|
2148 |
|
|
}
|
2149 |
|
|
|
2150 |
|
|
noprocess ();
|
2151 |
|
|
}
|
2152 |
|
|
|
2153 |
|
|
char *
|
2154 |
|
|
target_pid_to_str (ptid_t ptid)
|
2155 |
|
|
{
|
2156 |
|
|
struct target_ops *t;
|
2157 |
|
|
|
2158 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2159 |
|
|
{
|
2160 |
|
|
if (t->to_pid_to_str != NULL)
|
2161 |
|
|
return (*t->to_pid_to_str) (t, ptid);
|
2162 |
|
|
}
|
2163 |
|
|
|
2164 |
|
|
return normal_pid_to_str (ptid);
|
2165 |
|
|
}
|
2166 |
|
|
|
2167 |
|
|
void
|
2168 |
|
|
target_resume (ptid_t ptid, int step, enum target_signal signal)
|
2169 |
|
|
{
|
2170 |
|
|
struct target_ops *t;
|
2171 |
|
|
|
2172 |
|
|
target_dcache_invalidate ();
|
2173 |
|
|
|
2174 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2175 |
|
|
{
|
2176 |
|
|
if (t->to_resume != NULL)
|
2177 |
|
|
{
|
2178 |
|
|
t->to_resume (t, ptid, step, signal);
|
2179 |
|
|
if (targetdebug)
|
2180 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n",
|
2181 |
|
|
PIDGET (ptid),
|
2182 |
|
|
step ? "step" : "continue",
|
2183 |
|
|
target_signal_to_name (signal));
|
2184 |
|
|
|
2185 |
|
|
set_executing (ptid, 1);
|
2186 |
|
|
set_running (ptid, 1);
|
2187 |
|
|
clear_inline_frame_state (ptid);
|
2188 |
|
|
return;
|
2189 |
|
|
}
|
2190 |
|
|
}
|
2191 |
|
|
|
2192 |
|
|
noprocess ();
|
2193 |
|
|
}
|
2194 |
|
|
/* Look through the list of possible targets for a target that can
|
2195 |
|
|
follow forks. */
|
2196 |
|
|
|
2197 |
|
|
int
|
2198 |
|
|
target_follow_fork (int follow_child)
|
2199 |
|
|
{
|
2200 |
|
|
struct target_ops *t;
|
2201 |
|
|
|
2202 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2203 |
|
|
{
|
2204 |
|
|
if (t->to_follow_fork != NULL)
|
2205 |
|
|
{
|
2206 |
|
|
int retval = t->to_follow_fork (t, follow_child);
|
2207 |
|
|
if (targetdebug)
|
2208 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_follow_fork (%d) = %d\n",
|
2209 |
|
|
follow_child, retval);
|
2210 |
|
|
return retval;
|
2211 |
|
|
}
|
2212 |
|
|
}
|
2213 |
|
|
|
2214 |
|
|
/* Some target returned a fork event, but did not know how to follow it. */
|
2215 |
|
|
internal_error (__FILE__, __LINE__,
|
2216 |
|
|
"could not find a target to follow fork");
|
2217 |
|
|
}
|
2218 |
|
|
|
2219 |
|
|
void
|
2220 |
|
|
target_mourn_inferior (void)
|
2221 |
|
|
{
|
2222 |
|
|
struct target_ops *t;
|
2223 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2224 |
|
|
{
|
2225 |
|
|
if (t->to_mourn_inferior != NULL)
|
2226 |
|
|
{
|
2227 |
|
|
t->to_mourn_inferior (t);
|
2228 |
|
|
if (targetdebug)
|
2229 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n");
|
2230 |
|
|
|
2231 |
|
|
/* We no longer need to keep handles on any of the object files.
|
2232 |
|
|
Make sure to release them to avoid unnecessarily locking any
|
2233 |
|
|
of them while we're not actually debugging. */
|
2234 |
|
|
bfd_cache_close_all ();
|
2235 |
|
|
|
2236 |
|
|
return;
|
2237 |
|
|
}
|
2238 |
|
|
}
|
2239 |
|
|
|
2240 |
|
|
internal_error (__FILE__, __LINE__,
|
2241 |
|
|
"could not find a target to follow mourn inferiour");
|
2242 |
|
|
}
|
2243 |
|
|
|
2244 |
|
|
/* Look for a target which can describe architectural features, starting
|
2245 |
|
|
from TARGET. If we find one, return its description. */
|
2246 |
|
|
|
2247 |
|
|
const struct target_desc *
|
2248 |
|
|
target_read_description (struct target_ops *target)
|
2249 |
|
|
{
|
2250 |
|
|
struct target_ops *t;
|
2251 |
|
|
|
2252 |
|
|
for (t = target; t != NULL; t = t->beneath)
|
2253 |
|
|
if (t->to_read_description != NULL)
|
2254 |
|
|
{
|
2255 |
|
|
const struct target_desc *tdesc;
|
2256 |
|
|
|
2257 |
|
|
tdesc = t->to_read_description (t);
|
2258 |
|
|
if (tdesc)
|
2259 |
|
|
return tdesc;
|
2260 |
|
|
}
|
2261 |
|
|
|
2262 |
|
|
return NULL;
|
2263 |
|
|
}
|
2264 |
|
|
|
2265 |
|
|
/* The default implementation of to_search_memory.
|
2266 |
|
|
This implements a basic search of memory, reading target memory and
|
2267 |
|
|
performing the search here (as opposed to performing the search in on the
|
2268 |
|
|
target side with, for example, gdbserver). */
|
2269 |
|
|
|
2270 |
|
|
int
|
2271 |
|
|
simple_search_memory (struct target_ops *ops,
|
2272 |
|
|
CORE_ADDR start_addr, ULONGEST search_space_len,
|
2273 |
|
|
const gdb_byte *pattern, ULONGEST pattern_len,
|
2274 |
|
|
CORE_ADDR *found_addrp)
|
2275 |
|
|
{
|
2276 |
|
|
/* NOTE: also defined in find.c testcase. */
|
2277 |
|
|
#define SEARCH_CHUNK_SIZE 16000
|
2278 |
|
|
const unsigned chunk_size = SEARCH_CHUNK_SIZE;
|
2279 |
|
|
/* Buffer to hold memory contents for searching. */
|
2280 |
|
|
gdb_byte *search_buf;
|
2281 |
|
|
unsigned search_buf_size;
|
2282 |
|
|
struct cleanup *old_cleanups;
|
2283 |
|
|
|
2284 |
|
|
search_buf_size = chunk_size + pattern_len - 1;
|
2285 |
|
|
|
2286 |
|
|
/* No point in trying to allocate a buffer larger than the search space. */
|
2287 |
|
|
if (search_space_len < search_buf_size)
|
2288 |
|
|
search_buf_size = search_space_len;
|
2289 |
|
|
|
2290 |
|
|
search_buf = malloc (search_buf_size);
|
2291 |
|
|
if (search_buf == NULL)
|
2292 |
|
|
error (_("Unable to allocate memory to perform the search."));
|
2293 |
|
|
old_cleanups = make_cleanup (free_current_contents, &search_buf);
|
2294 |
|
|
|
2295 |
|
|
/* Prime the search buffer. */
|
2296 |
|
|
|
2297 |
|
|
if (target_read (ops, TARGET_OBJECT_MEMORY, NULL,
|
2298 |
|
|
search_buf, start_addr, search_buf_size) != search_buf_size)
|
2299 |
|
|
{
|
2300 |
|
|
warning (_("Unable to access target memory at %s, halting search."),
|
2301 |
|
|
hex_string (start_addr));
|
2302 |
|
|
do_cleanups (old_cleanups);
|
2303 |
|
|
return -1;
|
2304 |
|
|
}
|
2305 |
|
|
|
2306 |
|
|
/* Perform the search.
|
2307 |
|
|
|
2308 |
|
|
The loop is kept simple by allocating [N + pattern-length - 1] bytes.
|
2309 |
|
|
When we've scanned N bytes we copy the trailing bytes to the start and
|
2310 |
|
|
read in another N bytes. */
|
2311 |
|
|
|
2312 |
|
|
while (search_space_len >= pattern_len)
|
2313 |
|
|
{
|
2314 |
|
|
gdb_byte *found_ptr;
|
2315 |
|
|
unsigned nr_search_bytes = min (search_space_len, search_buf_size);
|
2316 |
|
|
|
2317 |
|
|
found_ptr = memmem (search_buf, nr_search_bytes,
|
2318 |
|
|
pattern, pattern_len);
|
2319 |
|
|
|
2320 |
|
|
if (found_ptr != NULL)
|
2321 |
|
|
{
|
2322 |
|
|
CORE_ADDR found_addr = start_addr + (found_ptr - search_buf);
|
2323 |
|
|
*found_addrp = found_addr;
|
2324 |
|
|
do_cleanups (old_cleanups);
|
2325 |
|
|
return 1;
|
2326 |
|
|
}
|
2327 |
|
|
|
2328 |
|
|
/* Not found in this chunk, skip to next chunk. */
|
2329 |
|
|
|
2330 |
|
|
/* Don't let search_space_len wrap here, it's unsigned. */
|
2331 |
|
|
if (search_space_len >= chunk_size)
|
2332 |
|
|
search_space_len -= chunk_size;
|
2333 |
|
|
else
|
2334 |
|
|
search_space_len = 0;
|
2335 |
|
|
|
2336 |
|
|
if (search_space_len >= pattern_len)
|
2337 |
|
|
{
|
2338 |
|
|
unsigned keep_len = search_buf_size - chunk_size;
|
2339 |
|
|
CORE_ADDR read_addr = start_addr + chunk_size + keep_len;
|
2340 |
|
|
int nr_to_read;
|
2341 |
|
|
|
2342 |
|
|
/* Copy the trailing part of the previous iteration to the front
|
2343 |
|
|
of the buffer for the next iteration. */
|
2344 |
|
|
gdb_assert (keep_len == pattern_len - 1);
|
2345 |
|
|
memcpy (search_buf, search_buf + chunk_size, keep_len);
|
2346 |
|
|
|
2347 |
|
|
nr_to_read = min (search_space_len - keep_len, chunk_size);
|
2348 |
|
|
|
2349 |
|
|
if (target_read (ops, TARGET_OBJECT_MEMORY, NULL,
|
2350 |
|
|
search_buf + keep_len, read_addr,
|
2351 |
|
|
nr_to_read) != nr_to_read)
|
2352 |
|
|
{
|
2353 |
|
|
warning (_("Unable to access target memory at %s, halting search."),
|
2354 |
|
|
hex_string (read_addr));
|
2355 |
|
|
do_cleanups (old_cleanups);
|
2356 |
|
|
return -1;
|
2357 |
|
|
}
|
2358 |
|
|
|
2359 |
|
|
start_addr += chunk_size;
|
2360 |
|
|
}
|
2361 |
|
|
}
|
2362 |
|
|
|
2363 |
|
|
/* Not found. */
|
2364 |
|
|
|
2365 |
|
|
do_cleanups (old_cleanups);
|
2366 |
|
|
return 0;
|
2367 |
|
|
}
|
2368 |
|
|
|
2369 |
|
|
/* Search SEARCH_SPACE_LEN bytes beginning at START_ADDR for the
|
2370 |
|
|
sequence of bytes in PATTERN with length PATTERN_LEN.
|
2371 |
|
|
|
2372 |
|
|
The result is 1 if found, 0 if not found, and -1 if there was an error
|
2373 |
|
|
requiring halting of the search (e.g. memory read error).
|
2374 |
|
|
If the pattern is found the address is recorded in FOUND_ADDRP. */
|
2375 |
|
|
|
2376 |
|
|
int
|
2377 |
|
|
target_search_memory (CORE_ADDR start_addr, ULONGEST search_space_len,
|
2378 |
|
|
const gdb_byte *pattern, ULONGEST pattern_len,
|
2379 |
|
|
CORE_ADDR *found_addrp)
|
2380 |
|
|
{
|
2381 |
|
|
struct target_ops *t;
|
2382 |
|
|
int found;
|
2383 |
|
|
|
2384 |
|
|
/* We don't use INHERIT to set current_target.to_search_memory,
|
2385 |
|
|
so we have to scan the target stack and handle targetdebug
|
2386 |
|
|
ourselves. */
|
2387 |
|
|
|
2388 |
|
|
if (targetdebug)
|
2389 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_search_memory (%s, ...)\n",
|
2390 |
|
|
hex_string (start_addr));
|
2391 |
|
|
|
2392 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2393 |
|
|
if (t->to_search_memory != NULL)
|
2394 |
|
|
break;
|
2395 |
|
|
|
2396 |
|
|
if (t != NULL)
|
2397 |
|
|
{
|
2398 |
|
|
found = t->to_search_memory (t, start_addr, search_space_len,
|
2399 |
|
|
pattern, pattern_len, found_addrp);
|
2400 |
|
|
}
|
2401 |
|
|
else
|
2402 |
|
|
{
|
2403 |
|
|
/* If a special version of to_search_memory isn't available, use the
|
2404 |
|
|
simple version. */
|
2405 |
|
|
found = simple_search_memory (current_target.beneath,
|
2406 |
|
|
start_addr, search_space_len,
|
2407 |
|
|
pattern, pattern_len, found_addrp);
|
2408 |
|
|
}
|
2409 |
|
|
|
2410 |
|
|
if (targetdebug)
|
2411 |
|
|
fprintf_unfiltered (gdb_stdlog, " = %d\n", found);
|
2412 |
|
|
|
2413 |
|
|
return found;
|
2414 |
|
|
}
|
2415 |
|
|
|
2416 |
|
|
/* Look through the currently pushed targets. If none of them will
|
2417 |
|
|
be able to restart the currently running process, issue an error
|
2418 |
|
|
message. */
|
2419 |
|
|
|
2420 |
|
|
void
|
2421 |
|
|
target_require_runnable (void)
|
2422 |
|
|
{
|
2423 |
|
|
struct target_ops *t;
|
2424 |
|
|
|
2425 |
|
|
for (t = target_stack; t != NULL; t = t->beneath)
|
2426 |
|
|
{
|
2427 |
|
|
/* If this target knows how to create a new program, then
|
2428 |
|
|
assume we will still be able to after killing the current
|
2429 |
|
|
one. Either killing and mourning will not pop T, or else
|
2430 |
|
|
find_default_run_target will find it again. */
|
2431 |
|
|
if (t->to_create_inferior != NULL)
|
2432 |
|
|
return;
|
2433 |
|
|
|
2434 |
|
|
/* Do not worry about thread_stratum targets that can not
|
2435 |
|
|
create inferiors. Assume they will be pushed again if
|
2436 |
|
|
necessary, and continue to the process_stratum. */
|
2437 |
|
|
if (t->to_stratum == thread_stratum
|
2438 |
|
|
|| t->to_stratum == arch_stratum)
|
2439 |
|
|
continue;
|
2440 |
|
|
|
2441 |
|
|
error (_("\
|
2442 |
|
|
The \"%s\" target does not support \"run\". Try \"help target\" or \"continue\"."),
|
2443 |
|
|
t->to_shortname);
|
2444 |
|
|
}
|
2445 |
|
|
|
2446 |
|
|
/* This function is only called if the target is running. In that
|
2447 |
|
|
case there should have been a process_stratum target and it
|
2448 |
|
|
should either know how to create inferiors, or not... */
|
2449 |
|
|
internal_error (__FILE__, __LINE__, "No targets found");
|
2450 |
|
|
}
|
2451 |
|
|
|
2452 |
|
|
/* Look through the list of possible targets for a target that can
|
2453 |
|
|
execute a run or attach command without any other data. This is
|
2454 |
|
|
used to locate the default process stratum.
|
2455 |
|
|
|
2456 |
|
|
If DO_MESG is not NULL, the result is always valid (error() is
|
2457 |
|
|
called for errors); else, return NULL on error. */
|
2458 |
|
|
|
2459 |
|
|
static struct target_ops *
|
2460 |
|
|
find_default_run_target (char *do_mesg)
|
2461 |
|
|
{
|
2462 |
|
|
struct target_ops **t;
|
2463 |
|
|
struct target_ops *runable = NULL;
|
2464 |
|
|
int count;
|
2465 |
|
|
|
2466 |
|
|
count = 0;
|
2467 |
|
|
|
2468 |
|
|
for (t = target_structs; t < target_structs + target_struct_size;
|
2469 |
|
|
++t)
|
2470 |
|
|
{
|
2471 |
|
|
if ((*t)->to_can_run && target_can_run (*t))
|
2472 |
|
|
{
|
2473 |
|
|
runable = *t;
|
2474 |
|
|
++count;
|
2475 |
|
|
}
|
2476 |
|
|
}
|
2477 |
|
|
|
2478 |
|
|
if (count != 1)
|
2479 |
|
|
{
|
2480 |
|
|
if (do_mesg)
|
2481 |
|
|
error (_("Don't know how to %s. Try \"help target\"."), do_mesg);
|
2482 |
|
|
else
|
2483 |
|
|
return NULL;
|
2484 |
|
|
}
|
2485 |
|
|
|
2486 |
|
|
return runable;
|
2487 |
|
|
}
|
2488 |
|
|
|
2489 |
|
|
void
|
2490 |
|
|
find_default_attach (struct target_ops *ops, char *args, int from_tty)
|
2491 |
|
|
{
|
2492 |
|
|
struct target_ops *t;
|
2493 |
|
|
|
2494 |
|
|
t = find_default_run_target ("attach");
|
2495 |
|
|
(t->to_attach) (t, args, from_tty);
|
2496 |
|
|
return;
|
2497 |
|
|
}
|
2498 |
|
|
|
2499 |
|
|
void
|
2500 |
|
|
find_default_create_inferior (struct target_ops *ops,
|
2501 |
|
|
char *exec_file, char *allargs, char **env,
|
2502 |
|
|
int from_tty)
|
2503 |
|
|
{
|
2504 |
|
|
struct target_ops *t;
|
2505 |
|
|
|
2506 |
|
|
t = find_default_run_target ("run");
|
2507 |
|
|
(t->to_create_inferior) (t, exec_file, allargs, env, from_tty);
|
2508 |
|
|
return;
|
2509 |
|
|
}
|
2510 |
|
|
|
2511 |
|
|
static int
|
2512 |
|
|
find_default_can_async_p (void)
|
2513 |
|
|
{
|
2514 |
|
|
struct target_ops *t;
|
2515 |
|
|
|
2516 |
|
|
/* This may be called before the target is pushed on the stack;
|
2517 |
|
|
look for the default process stratum. If there's none, gdb isn't
|
2518 |
|
|
configured with a native debugger, and target remote isn't
|
2519 |
|
|
connected yet. */
|
2520 |
|
|
t = find_default_run_target (NULL);
|
2521 |
|
|
if (t && t->to_can_async_p)
|
2522 |
|
|
return (t->to_can_async_p) ();
|
2523 |
|
|
return 0;
|
2524 |
|
|
}
|
2525 |
|
|
|
2526 |
|
|
static int
|
2527 |
|
|
find_default_is_async_p (void)
|
2528 |
|
|
{
|
2529 |
|
|
struct target_ops *t;
|
2530 |
|
|
|
2531 |
|
|
/* This may be called before the target is pushed on the stack;
|
2532 |
|
|
look for the default process stratum. If there's none, gdb isn't
|
2533 |
|
|
configured with a native debugger, and target remote isn't
|
2534 |
|
|
connected yet. */
|
2535 |
|
|
t = find_default_run_target (NULL);
|
2536 |
|
|
if (t && t->to_is_async_p)
|
2537 |
|
|
return (t->to_is_async_p) ();
|
2538 |
|
|
return 0;
|
2539 |
|
|
}
|
2540 |
|
|
|
2541 |
|
|
static int
|
2542 |
|
|
find_default_supports_non_stop (void)
|
2543 |
|
|
{
|
2544 |
|
|
struct target_ops *t;
|
2545 |
|
|
|
2546 |
|
|
t = find_default_run_target (NULL);
|
2547 |
|
|
if (t && t->to_supports_non_stop)
|
2548 |
|
|
return (t->to_supports_non_stop) ();
|
2549 |
|
|
return 0;
|
2550 |
|
|
}
|
2551 |
|
|
|
2552 |
|
|
int
|
2553 |
|
|
target_supports_non_stop (void)
|
2554 |
|
|
{
|
2555 |
|
|
struct target_ops *t;
|
2556 |
|
|
for (t = ¤t_target; t != NULL; t = t->beneath)
|
2557 |
|
|
if (t->to_supports_non_stop)
|
2558 |
|
|
return t->to_supports_non_stop ();
|
2559 |
|
|
|
2560 |
|
|
return 0;
|
2561 |
|
|
}
|
2562 |
|
|
|
2563 |
|
|
|
2564 |
|
|
char *
|
2565 |
|
|
target_get_osdata (const char *type)
|
2566 |
|
|
{
|
2567 |
|
|
char *document;
|
2568 |
|
|
struct target_ops *t;
|
2569 |
|
|
|
2570 |
|
|
/* If we're already connected to something that can get us OS
|
2571 |
|
|
related data, use it. Otherwise, try using the native
|
2572 |
|
|
target. */
|
2573 |
|
|
if (current_target.to_stratum >= process_stratum)
|
2574 |
|
|
t = current_target.beneath;
|
2575 |
|
|
else
|
2576 |
|
|
t = find_default_run_target ("get OS data");
|
2577 |
|
|
|
2578 |
|
|
if (!t)
|
2579 |
|
|
return NULL;
|
2580 |
|
|
|
2581 |
|
|
return target_read_stralloc (t, TARGET_OBJECT_OSDATA, type);
|
2582 |
|
|
}
|
2583 |
|
|
|
2584 |
|
|
/* Determine the current address space of thread PTID. */
|
2585 |
|
|
|
2586 |
|
|
struct address_space *
|
2587 |
|
|
target_thread_address_space (ptid_t ptid)
|
2588 |
|
|
{
|
2589 |
|
|
struct address_space *aspace;
|
2590 |
|
|
struct inferior *inf;
|
2591 |
|
|
struct target_ops *t;
|
2592 |
|
|
|
2593 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2594 |
|
|
{
|
2595 |
|
|
if (t->to_thread_address_space != NULL)
|
2596 |
|
|
{
|
2597 |
|
|
aspace = t->to_thread_address_space (t, ptid);
|
2598 |
|
|
gdb_assert (aspace);
|
2599 |
|
|
|
2600 |
|
|
if (targetdebug)
|
2601 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
2602 |
|
|
"target_thread_address_space (%s) = %d\n",
|
2603 |
|
|
target_pid_to_str (ptid),
|
2604 |
|
|
address_space_num (aspace));
|
2605 |
|
|
return aspace;
|
2606 |
|
|
}
|
2607 |
|
|
}
|
2608 |
|
|
|
2609 |
|
|
/* Fall-back to the "main" address space of the inferior. */
|
2610 |
|
|
inf = find_inferior_pid (ptid_get_pid (ptid));
|
2611 |
|
|
|
2612 |
|
|
if (inf == NULL || inf->aspace == NULL)
|
2613 |
|
|
internal_error (__FILE__, __LINE__, "\
|
2614 |
|
|
Can't determine the current address space of thread %s\n",
|
2615 |
|
|
target_pid_to_str (ptid));
|
2616 |
|
|
|
2617 |
|
|
return inf->aspace;
|
2618 |
|
|
}
|
2619 |
|
|
|
2620 |
|
|
static int
|
2621 |
|
|
default_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
|
2622 |
|
|
{
|
2623 |
|
|
return (len <= gdbarch_ptr_bit (target_gdbarch) / TARGET_CHAR_BIT);
|
2624 |
|
|
}
|
2625 |
|
|
|
2626 |
|
|
static int
|
2627 |
|
|
default_watchpoint_addr_within_range (struct target_ops *target,
|
2628 |
|
|
CORE_ADDR addr,
|
2629 |
|
|
CORE_ADDR start, int length)
|
2630 |
|
|
{
|
2631 |
|
|
return addr >= start && addr < start + length;
|
2632 |
|
|
}
|
2633 |
|
|
|
2634 |
|
|
static struct gdbarch *
|
2635 |
|
|
default_thread_architecture (struct target_ops *ops, ptid_t ptid)
|
2636 |
|
|
{
|
2637 |
|
|
return target_gdbarch;
|
2638 |
|
|
}
|
2639 |
|
|
|
2640 |
|
|
static int
|
2641 |
|
|
return_zero (void)
|
2642 |
|
|
{
|
2643 |
|
|
return 0;
|
2644 |
|
|
}
|
2645 |
|
|
|
2646 |
|
|
static int
|
2647 |
|
|
return_one (void)
|
2648 |
|
|
{
|
2649 |
|
|
return 1;
|
2650 |
|
|
}
|
2651 |
|
|
|
2652 |
|
|
static int
|
2653 |
|
|
return_minus_one (void)
|
2654 |
|
|
{
|
2655 |
|
|
return -1;
|
2656 |
|
|
}
|
2657 |
|
|
|
2658 |
|
|
/* Find a single runnable target in the stack and return it. If for
|
2659 |
|
|
some reason there is more than one, return NULL. */
|
2660 |
|
|
|
2661 |
|
|
struct target_ops *
|
2662 |
|
|
find_run_target (void)
|
2663 |
|
|
{
|
2664 |
|
|
struct target_ops **t;
|
2665 |
|
|
struct target_ops *runable = NULL;
|
2666 |
|
|
int count;
|
2667 |
|
|
|
2668 |
|
|
count = 0;
|
2669 |
|
|
|
2670 |
|
|
for (t = target_structs; t < target_structs + target_struct_size; ++t)
|
2671 |
|
|
{
|
2672 |
|
|
if ((*t)->to_can_run && target_can_run (*t))
|
2673 |
|
|
{
|
2674 |
|
|
runable = *t;
|
2675 |
|
|
++count;
|
2676 |
|
|
}
|
2677 |
|
|
}
|
2678 |
|
|
|
2679 |
|
|
return (count == 1 ? runable : NULL);
|
2680 |
|
|
}
|
2681 |
|
|
|
2682 |
|
|
/* Find a single core_stratum target in the list of targets and return it.
|
2683 |
|
|
If for some reason there is more than one, return NULL. */
|
2684 |
|
|
|
2685 |
|
|
struct target_ops *
|
2686 |
|
|
find_core_target (void)
|
2687 |
|
|
{
|
2688 |
|
|
struct target_ops **t;
|
2689 |
|
|
struct target_ops *runable = NULL;
|
2690 |
|
|
int count;
|
2691 |
|
|
|
2692 |
|
|
count = 0;
|
2693 |
|
|
|
2694 |
|
|
for (t = target_structs; t < target_structs + target_struct_size;
|
2695 |
|
|
++t)
|
2696 |
|
|
{
|
2697 |
|
|
if ((*t)->to_stratum == core_stratum)
|
2698 |
|
|
{
|
2699 |
|
|
runable = *t;
|
2700 |
|
|
++count;
|
2701 |
|
|
}
|
2702 |
|
|
}
|
2703 |
|
|
|
2704 |
|
|
return (count == 1 ? runable : NULL);
|
2705 |
|
|
}
|
2706 |
|
|
|
2707 |
|
|
/*
|
2708 |
|
|
* Find the next target down the stack from the specified target.
|
2709 |
|
|
*/
|
2710 |
|
|
|
2711 |
|
|
struct target_ops *
|
2712 |
|
|
find_target_beneath (struct target_ops *t)
|
2713 |
|
|
{
|
2714 |
|
|
return t->beneath;
|
2715 |
|
|
}
|
2716 |
|
|
|
2717 |
|
|
|
2718 |
|
|
/* The inferior process has died. Long live the inferior! */
|
2719 |
|
|
|
2720 |
|
|
void
|
2721 |
|
|
generic_mourn_inferior (void)
|
2722 |
|
|
{
|
2723 |
|
|
ptid_t ptid;
|
2724 |
|
|
|
2725 |
|
|
ptid = inferior_ptid;
|
2726 |
|
|
inferior_ptid = null_ptid;
|
2727 |
|
|
|
2728 |
|
|
if (!ptid_equal (ptid, null_ptid))
|
2729 |
|
|
{
|
2730 |
|
|
int pid = ptid_get_pid (ptid);
|
2731 |
|
|
exit_inferior (pid);
|
2732 |
|
|
}
|
2733 |
|
|
|
2734 |
|
|
breakpoint_init_inferior (inf_exited);
|
2735 |
|
|
registers_changed ();
|
2736 |
|
|
|
2737 |
|
|
reopen_exec_file ();
|
2738 |
|
|
reinit_frame_cache ();
|
2739 |
|
|
|
2740 |
|
|
if (deprecated_detach_hook)
|
2741 |
|
|
deprecated_detach_hook ();
|
2742 |
|
|
}
|
2743 |
|
|
|
2744 |
|
|
/* Helper function for child_wait and the derivatives of child_wait.
|
2745 |
|
|
HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
|
2746 |
|
|
translation of that in OURSTATUS. */
|
2747 |
|
|
void
|
2748 |
|
|
store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus)
|
2749 |
|
|
{
|
2750 |
|
|
if (WIFEXITED (hoststatus))
|
2751 |
|
|
{
|
2752 |
|
|
ourstatus->kind = TARGET_WAITKIND_EXITED;
|
2753 |
|
|
ourstatus->value.integer = WEXITSTATUS (hoststatus);
|
2754 |
|
|
}
|
2755 |
|
|
else if (!WIFSTOPPED (hoststatus))
|
2756 |
|
|
{
|
2757 |
|
|
ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
|
2758 |
|
|
ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus));
|
2759 |
|
|
}
|
2760 |
|
|
else
|
2761 |
|
|
{
|
2762 |
|
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
2763 |
|
|
ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus));
|
2764 |
|
|
}
|
2765 |
|
|
}
|
2766 |
|
|
|
2767 |
|
|
/* Convert a normal process ID to a string. Returns the string in a
|
2768 |
|
|
static buffer. */
|
2769 |
|
|
|
2770 |
|
|
char *
|
2771 |
|
|
normal_pid_to_str (ptid_t ptid)
|
2772 |
|
|
{
|
2773 |
|
|
static char buf[32];
|
2774 |
|
|
|
2775 |
|
|
xsnprintf (buf, sizeof buf, "process %d", ptid_get_pid (ptid));
|
2776 |
|
|
return buf;
|
2777 |
|
|
}
|
2778 |
|
|
|
2779 |
|
|
static char *
|
2780 |
|
|
dummy_pid_to_str (struct target_ops *ops, ptid_t ptid)
|
2781 |
|
|
{
|
2782 |
|
|
return normal_pid_to_str (ptid);
|
2783 |
|
|
}
|
2784 |
|
|
|
2785 |
|
|
/* Error-catcher for target_find_memory_regions. */
|
2786 |
|
|
static int
|
2787 |
|
|
dummy_find_memory_regions (int (*ignore1) (), void *ignore2)
|
2788 |
|
|
{
|
2789 |
|
|
error (_("Command not implemented for this target."));
|
2790 |
|
|
return 0;
|
2791 |
|
|
}
|
2792 |
|
|
|
2793 |
|
|
/* Error-catcher for target_make_corefile_notes. */
|
2794 |
|
|
static char *
|
2795 |
|
|
dummy_make_corefile_notes (bfd *ignore1, int *ignore2)
|
2796 |
|
|
{
|
2797 |
|
|
error (_("Command not implemented for this target."));
|
2798 |
|
|
return NULL;
|
2799 |
|
|
}
|
2800 |
|
|
|
2801 |
|
|
/* Error-catcher for target_get_bookmark. */
|
2802 |
|
|
static gdb_byte *
|
2803 |
|
|
dummy_get_bookmark (char *ignore1, int ignore2)
|
2804 |
|
|
{
|
2805 |
|
|
tcomplain ();
|
2806 |
|
|
return NULL;
|
2807 |
|
|
}
|
2808 |
|
|
|
2809 |
|
|
/* Error-catcher for target_goto_bookmark. */
|
2810 |
|
|
static void
|
2811 |
|
|
dummy_goto_bookmark (gdb_byte *ignore, int from_tty)
|
2812 |
|
|
{
|
2813 |
|
|
tcomplain ();
|
2814 |
|
|
}
|
2815 |
|
|
|
2816 |
|
|
/* Set up the handful of non-empty slots needed by the dummy target
|
2817 |
|
|
vector. */
|
2818 |
|
|
|
2819 |
|
|
static void
|
2820 |
|
|
init_dummy_target (void)
|
2821 |
|
|
{
|
2822 |
|
|
dummy_target.to_shortname = "None";
|
2823 |
|
|
dummy_target.to_longname = "None";
|
2824 |
|
|
dummy_target.to_doc = "";
|
2825 |
|
|
dummy_target.to_attach = find_default_attach;
|
2826 |
|
|
dummy_target.to_detach =
|
2827 |
|
|
(void (*)(struct target_ops *, char *, int))target_ignore;
|
2828 |
|
|
dummy_target.to_create_inferior = find_default_create_inferior;
|
2829 |
|
|
dummy_target.to_can_async_p = find_default_can_async_p;
|
2830 |
|
|
dummy_target.to_is_async_p = find_default_is_async_p;
|
2831 |
|
|
dummy_target.to_supports_non_stop = find_default_supports_non_stop;
|
2832 |
|
|
dummy_target.to_pid_to_str = dummy_pid_to_str;
|
2833 |
|
|
dummy_target.to_stratum = dummy_stratum;
|
2834 |
|
|
dummy_target.to_find_memory_regions = dummy_find_memory_regions;
|
2835 |
|
|
dummy_target.to_make_corefile_notes = dummy_make_corefile_notes;
|
2836 |
|
|
dummy_target.to_get_bookmark = dummy_get_bookmark;
|
2837 |
|
|
dummy_target.to_goto_bookmark = dummy_goto_bookmark;
|
2838 |
|
|
dummy_target.to_xfer_partial = default_xfer_partial;
|
2839 |
|
|
dummy_target.to_has_all_memory = (int (*) (struct target_ops *)) return_zero;
|
2840 |
|
|
dummy_target.to_has_memory = (int (*) (struct target_ops *)) return_zero;
|
2841 |
|
|
dummy_target.to_has_stack = (int (*) (struct target_ops *)) return_zero;
|
2842 |
|
|
dummy_target.to_has_registers = (int (*) (struct target_ops *)) return_zero;
|
2843 |
|
|
dummy_target.to_has_execution = (int (*) (struct target_ops *)) return_zero;
|
2844 |
|
|
dummy_target.to_magic = OPS_MAGIC;
|
2845 |
|
|
}
|
2846 |
|
|
|
2847 |
|
|
static void
|
2848 |
|
|
debug_to_open (char *args, int from_tty)
|
2849 |
|
|
{
|
2850 |
|
|
debug_target.to_open (args, from_tty);
|
2851 |
|
|
|
2852 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty);
|
2853 |
|
|
}
|
2854 |
|
|
|
2855 |
|
|
void
|
2856 |
|
|
target_close (struct target_ops *targ, int quitting)
|
2857 |
|
|
{
|
2858 |
|
|
if (targ->to_xclose != NULL)
|
2859 |
|
|
targ->to_xclose (targ, quitting);
|
2860 |
|
|
else if (targ->to_close != NULL)
|
2861 |
|
|
targ->to_close (quitting);
|
2862 |
|
|
|
2863 |
|
|
if (targetdebug)
|
2864 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting);
|
2865 |
|
|
}
|
2866 |
|
|
|
2867 |
|
|
void
|
2868 |
|
|
target_attach (char *args, int from_tty)
|
2869 |
|
|
{
|
2870 |
|
|
struct target_ops *t;
|
2871 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2872 |
|
|
{
|
2873 |
|
|
if (t->to_attach != NULL)
|
2874 |
|
|
{
|
2875 |
|
|
t->to_attach (t, args, from_tty);
|
2876 |
|
|
if (targetdebug)
|
2877 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n",
|
2878 |
|
|
args, from_tty);
|
2879 |
|
|
return;
|
2880 |
|
|
}
|
2881 |
|
|
}
|
2882 |
|
|
|
2883 |
|
|
internal_error (__FILE__, __LINE__,
|
2884 |
|
|
"could not find a target to attach");
|
2885 |
|
|
}
|
2886 |
|
|
|
2887 |
|
|
int
|
2888 |
|
|
target_thread_alive (ptid_t ptid)
|
2889 |
|
|
{
|
2890 |
|
|
struct target_ops *t;
|
2891 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2892 |
|
|
{
|
2893 |
|
|
if (t->to_thread_alive != NULL)
|
2894 |
|
|
{
|
2895 |
|
|
int retval;
|
2896 |
|
|
|
2897 |
|
|
retval = t->to_thread_alive (t, ptid);
|
2898 |
|
|
if (targetdebug)
|
2899 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n",
|
2900 |
|
|
PIDGET (ptid), retval);
|
2901 |
|
|
|
2902 |
|
|
return retval;
|
2903 |
|
|
}
|
2904 |
|
|
}
|
2905 |
|
|
|
2906 |
|
|
return 0;
|
2907 |
|
|
}
|
2908 |
|
|
|
2909 |
|
|
void
|
2910 |
|
|
target_find_new_threads (void)
|
2911 |
|
|
{
|
2912 |
|
|
struct target_ops *t;
|
2913 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
2914 |
|
|
{
|
2915 |
|
|
if (t->to_find_new_threads != NULL)
|
2916 |
|
|
{
|
2917 |
|
|
t->to_find_new_threads (t);
|
2918 |
|
|
if (targetdebug)
|
2919 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_find_new_threads ()\n");
|
2920 |
|
|
|
2921 |
|
|
return;
|
2922 |
|
|
}
|
2923 |
|
|
}
|
2924 |
|
|
}
|
2925 |
|
|
|
2926 |
|
|
static void
|
2927 |
|
|
debug_to_post_attach (int pid)
|
2928 |
|
|
{
|
2929 |
|
|
debug_target.to_post_attach (pid);
|
2930 |
|
|
|
2931 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid);
|
2932 |
|
|
}
|
2933 |
|
|
|
2934 |
|
|
/* Return a pretty printed form of target_waitstatus.
|
2935 |
|
|
Space for the result is malloc'd, caller must free. */
|
2936 |
|
|
|
2937 |
|
|
char *
|
2938 |
|
|
target_waitstatus_to_string (const struct target_waitstatus *ws)
|
2939 |
|
|
{
|
2940 |
|
|
const char *kind_str = "status->kind = ";
|
2941 |
|
|
|
2942 |
|
|
switch (ws->kind)
|
2943 |
|
|
{
|
2944 |
|
|
case TARGET_WAITKIND_EXITED:
|
2945 |
|
|
return xstrprintf ("%sexited, status = %d",
|
2946 |
|
|
kind_str, ws->value.integer);
|
2947 |
|
|
case TARGET_WAITKIND_STOPPED:
|
2948 |
|
|
return xstrprintf ("%sstopped, signal = %s",
|
2949 |
|
|
kind_str, target_signal_to_name (ws->value.sig));
|
2950 |
|
|
case TARGET_WAITKIND_SIGNALLED:
|
2951 |
|
|
return xstrprintf ("%ssignalled, signal = %s",
|
2952 |
|
|
kind_str, target_signal_to_name (ws->value.sig));
|
2953 |
|
|
case TARGET_WAITKIND_LOADED:
|
2954 |
|
|
return xstrprintf ("%sloaded", kind_str);
|
2955 |
|
|
case TARGET_WAITKIND_FORKED:
|
2956 |
|
|
return xstrprintf ("%sforked", kind_str);
|
2957 |
|
|
case TARGET_WAITKIND_VFORKED:
|
2958 |
|
|
return xstrprintf ("%svforked", kind_str);
|
2959 |
|
|
case TARGET_WAITKIND_EXECD:
|
2960 |
|
|
return xstrprintf ("%sexecd", kind_str);
|
2961 |
|
|
case TARGET_WAITKIND_SYSCALL_ENTRY:
|
2962 |
|
|
return xstrprintf ("%sentered syscall", kind_str);
|
2963 |
|
|
case TARGET_WAITKIND_SYSCALL_RETURN:
|
2964 |
|
|
return xstrprintf ("%sexited syscall", kind_str);
|
2965 |
|
|
case TARGET_WAITKIND_SPURIOUS:
|
2966 |
|
|
return xstrprintf ("%sspurious", kind_str);
|
2967 |
|
|
case TARGET_WAITKIND_IGNORE:
|
2968 |
|
|
return xstrprintf ("%signore", kind_str);
|
2969 |
|
|
case TARGET_WAITKIND_NO_HISTORY:
|
2970 |
|
|
return xstrprintf ("%sno-history", kind_str);
|
2971 |
|
|
default:
|
2972 |
|
|
return xstrprintf ("%sunknown???", kind_str);
|
2973 |
|
|
}
|
2974 |
|
|
}
|
2975 |
|
|
|
2976 |
|
|
static void
|
2977 |
|
|
debug_print_register (const char * func,
|
2978 |
|
|
struct regcache *regcache, int regno)
|
2979 |
|
|
{
|
2980 |
|
|
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
2981 |
|
|
fprintf_unfiltered (gdb_stdlog, "%s ", func);
|
2982 |
|
|
if (regno >= 0 && regno < gdbarch_num_regs (gdbarch)
|
2983 |
|
|
&& gdbarch_register_name (gdbarch, regno) != NULL
|
2984 |
|
|
&& gdbarch_register_name (gdbarch, regno)[0] != '\0')
|
2985 |
|
|
fprintf_unfiltered (gdb_stdlog, "(%s)",
|
2986 |
|
|
gdbarch_register_name (gdbarch, regno));
|
2987 |
|
|
else
|
2988 |
|
|
fprintf_unfiltered (gdb_stdlog, "(%d)", regno);
|
2989 |
|
|
if (regno >= 0 && regno < gdbarch_num_regs (gdbarch))
|
2990 |
|
|
{
|
2991 |
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
2992 |
|
|
int i, size = register_size (gdbarch, regno);
|
2993 |
|
|
unsigned char buf[MAX_REGISTER_SIZE];
|
2994 |
|
|
regcache_raw_collect (regcache, regno, buf);
|
2995 |
|
|
fprintf_unfiltered (gdb_stdlog, " = ");
|
2996 |
|
|
for (i = 0; i < size; i++)
|
2997 |
|
|
{
|
2998 |
|
|
fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]);
|
2999 |
|
|
}
|
3000 |
|
|
if (size <= sizeof (LONGEST))
|
3001 |
|
|
{
|
3002 |
|
|
ULONGEST val = extract_unsigned_integer (buf, size, byte_order);
|
3003 |
|
|
fprintf_unfiltered (gdb_stdlog, " %s %s",
|
3004 |
|
|
core_addr_to_string_nz (val), plongest (val));
|
3005 |
|
|
}
|
3006 |
|
|
}
|
3007 |
|
|
fprintf_unfiltered (gdb_stdlog, "\n");
|
3008 |
|
|
}
|
3009 |
|
|
|
3010 |
|
|
void
|
3011 |
|
|
target_fetch_registers (struct regcache *regcache, int regno)
|
3012 |
|
|
{
|
3013 |
|
|
struct target_ops *t;
|
3014 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
3015 |
|
|
{
|
3016 |
|
|
if (t->to_fetch_registers != NULL)
|
3017 |
|
|
{
|
3018 |
|
|
t->to_fetch_registers (t, regcache, regno);
|
3019 |
|
|
if (targetdebug)
|
3020 |
|
|
debug_print_register ("target_fetch_registers", regcache, regno);
|
3021 |
|
|
return;
|
3022 |
|
|
}
|
3023 |
|
|
}
|
3024 |
|
|
}
|
3025 |
|
|
|
3026 |
|
|
void
|
3027 |
|
|
target_store_registers (struct regcache *regcache, int regno)
|
3028 |
|
|
{
|
3029 |
|
|
|
3030 |
|
|
struct target_ops *t;
|
3031 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
3032 |
|
|
{
|
3033 |
|
|
if (t->to_store_registers != NULL)
|
3034 |
|
|
{
|
3035 |
|
|
t->to_store_registers (t, regcache, regno);
|
3036 |
|
|
if (targetdebug)
|
3037 |
|
|
{
|
3038 |
|
|
debug_print_register ("target_store_registers", regcache, regno);
|
3039 |
|
|
}
|
3040 |
|
|
return;
|
3041 |
|
|
}
|
3042 |
|
|
}
|
3043 |
|
|
|
3044 |
|
|
noprocess ();
|
3045 |
|
|
}
|
3046 |
|
|
|
3047 |
|
|
int
|
3048 |
|
|
target_core_of_thread (ptid_t ptid)
|
3049 |
|
|
{
|
3050 |
|
|
struct target_ops *t;
|
3051 |
|
|
|
3052 |
|
|
for (t = current_target.beneath; t != NULL; t = t->beneath)
|
3053 |
|
|
{
|
3054 |
|
|
if (t->to_core_of_thread != NULL)
|
3055 |
|
|
{
|
3056 |
|
|
int retval = t->to_core_of_thread (t, ptid);
|
3057 |
|
|
if (targetdebug)
|
3058 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_core_of_thread (%d) = %d\n",
|
3059 |
|
|
PIDGET (ptid), retval);
|
3060 |
|
|
return retval;
|
3061 |
|
|
}
|
3062 |
|
|
}
|
3063 |
|
|
|
3064 |
|
|
return -1;
|
3065 |
|
|
}
|
3066 |
|
|
|
3067 |
|
|
static void
|
3068 |
|
|
debug_to_prepare_to_store (struct regcache *regcache)
|
3069 |
|
|
{
|
3070 |
|
|
debug_target.to_prepare_to_store (regcache);
|
3071 |
|
|
|
3072 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n");
|
3073 |
|
|
}
|
3074 |
|
|
|
3075 |
|
|
static int
|
3076 |
|
|
deprecated_debug_xfer_memory (CORE_ADDR memaddr, bfd_byte *myaddr, int len,
|
3077 |
|
|
int write, struct mem_attrib *attrib,
|
3078 |
|
|
struct target_ops *target)
|
3079 |
|
|
{
|
3080 |
|
|
int retval;
|
3081 |
|
|
|
3082 |
|
|
retval = debug_target.deprecated_xfer_memory (memaddr, myaddr, len, write,
|
3083 |
|
|
attrib, target);
|
3084 |
|
|
|
3085 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
3086 |
|
|
"target_xfer_memory (%s, xxx, %d, %s, xxx) = %d",
|
3087 |
|
|
paddress (target_gdbarch, memaddr), len,
|
3088 |
|
|
write ? "write" : "read", retval);
|
3089 |
|
|
|
3090 |
|
|
if (retval > 0)
|
3091 |
|
|
{
|
3092 |
|
|
int i;
|
3093 |
|
|
|
3094 |
|
|
fputs_unfiltered (", bytes =", gdb_stdlog);
|
3095 |
|
|
for (i = 0; i < retval; i++)
|
3096 |
|
|
{
|
3097 |
|
|
if ((((intptr_t) &(myaddr[i])) & 0xf) == 0)
|
3098 |
|
|
{
|
3099 |
|
|
if (targetdebug < 2 && i > 0)
|
3100 |
|
|
{
|
3101 |
|
|
fprintf_unfiltered (gdb_stdlog, " ...");
|
3102 |
|
|
break;
|
3103 |
|
|
}
|
3104 |
|
|
fprintf_unfiltered (gdb_stdlog, "\n");
|
3105 |
|
|
}
|
3106 |
|
|
|
3107 |
|
|
fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff);
|
3108 |
|
|
}
|
3109 |
|
|
}
|
3110 |
|
|
|
3111 |
|
|
fputc_unfiltered ('\n', gdb_stdlog);
|
3112 |
|
|
|
3113 |
|
|
return retval;
|
3114 |
|
|
}
|
3115 |
|
|
|
3116 |
|
|
static void
|
3117 |
|
|
debug_to_files_info (struct target_ops *target)
|
3118 |
|
|
{
|
3119 |
|
|
debug_target.to_files_info (target);
|
3120 |
|
|
|
3121 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n");
|
3122 |
|
|
}
|
3123 |
|
|
|
3124 |
|
|
static int
|
3125 |
|
|
debug_to_insert_breakpoint (struct gdbarch *gdbarch,
|
3126 |
|
|
struct bp_target_info *bp_tgt)
|
3127 |
|
|
{
|
3128 |
|
|
int retval;
|
3129 |
|
|
|
3130 |
|
|
retval = debug_target.to_insert_breakpoint (gdbarch, bp_tgt);
|
3131 |
|
|
|
3132 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
3133 |
|
|
"target_insert_breakpoint (0x%lx, xxx) = %ld\n",
|
3134 |
|
|
(unsigned long) bp_tgt->placed_address,
|
3135 |
|
|
(unsigned long) retval);
|
3136 |
|
|
return retval;
|
3137 |
|
|
}
|
3138 |
|
|
|
3139 |
|
|
static int
|
3140 |
|
|
debug_to_remove_breakpoint (struct gdbarch *gdbarch,
|
3141 |
|
|
struct bp_target_info *bp_tgt)
|
3142 |
|
|
{
|
3143 |
|
|
int retval;
|
3144 |
|
|
|
3145 |
|
|
retval = debug_target.to_remove_breakpoint (gdbarch, bp_tgt);
|
3146 |
|
|
|
3147 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
3148 |
|
|
"target_remove_breakpoint (0x%lx, xxx) = %ld\n",
|
3149 |
|
|
(unsigned long) bp_tgt->placed_address,
|
3150 |
|
|
(unsigned long) retval);
|
3151 |
|
|
return retval;
|
3152 |
|
|
}
|
3153 |
|
|
|
3154 |
|
|
static int
|
3155 |
|
|
debug_to_can_use_hw_breakpoint (int type, int cnt, int from_tty)
|
3156 |
|
|
{
|
3157 |
|
|
int retval;
|
3158 |
|
|
|
3159 |
|
|
retval = debug_target.to_can_use_hw_breakpoint (type, cnt, from_tty);
|
3160 |
|
|
|
3161 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
3162 |
|
|
"target_can_use_hw_breakpoint (%ld, %ld, %ld) = %ld\n",
|
3163 |
|
|
(unsigned long) type,
|
3164 |
|
|
(unsigned long) cnt,
|
3165 |
|
|
(unsigned long) from_tty,
|
3166 |
|
|
(unsigned long) retval);
|
3167 |
|
|
return retval;
|
3168 |
|
|
}
|
3169 |
|
|
|
3170 |
|
|
static int
|
3171 |
|
|
debug_to_region_ok_for_hw_watchpoint (CORE_ADDR addr, int len)
|
3172 |
|
|
{
|
3173 |
|
|
CORE_ADDR retval;
|
3174 |
|
|
|
3175 |
|
|
retval = debug_target.to_region_ok_for_hw_watchpoint (addr, len);
|
3176 |
|
|
|
3177 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
3178 |
|
|
"target_region_ok_for_hw_watchpoint (%ld, %ld) = 0x%lx\n",
|
3179 |
|
|
(unsigned long) addr,
|
3180 |
|
|
(unsigned long) len,
|
3181 |
|
|
(unsigned long) retval);
|
3182 |
|
|
return retval;
|
3183 |
|
|
}
|
3184 |
|
|
|
3185 |
|
|
static int
|
3186 |
|
|
debug_to_stopped_by_watchpoint (void)
|
3187 |
|
|
{
|
3188 |
|
|
int retval;
|
3189 |
|
|
|
3190 |
|
|
retval = debug_target.to_stopped_by_watchpoint ();
|
3191 |
|
|
|
3192 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
3193 |
|
|
"target_stopped_by_watchpoint () = %ld\n",
|
3194 |
|
|
(unsigned long) retval);
|
3195 |
|
|
return retval;
|
3196 |
|
|
}
|
3197 |
|
|
|
3198 |
|
|
static int
|
3199 |
|
|
debug_to_stopped_data_address (struct target_ops *target, CORE_ADDR *addr)
|
3200 |
|
|
{
|
3201 |
|
|
int retval;
|
3202 |
|
|
|
3203 |
|
|
retval = debug_target.to_stopped_data_address (target, addr);
|
3204 |
|
|
|
3205 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
3206 |
|
|
"target_stopped_data_address ([0x%lx]) = %ld\n",
|
3207 |
|
|
(unsigned long)*addr,
|
3208 |
|
|
(unsigned long)retval);
|
3209 |
|
|
return retval;
|
3210 |
|
|
}
|
3211 |
|
|
|
3212 |
|
|
static int
|
3213 |
|
|
debug_to_watchpoint_addr_within_range (struct target_ops *target,
|
3214 |
|
|
CORE_ADDR addr,
|
3215 |
|
|
CORE_ADDR start, int length)
|
3216 |
|
|
{
|
3217 |
|
|
int retval;
|
3218 |
|
|
|
3219 |
|
|
retval = debug_target.to_watchpoint_addr_within_range (target, addr,
|
3220 |
|
|
start, length);
|
3221 |
|
|
|
3222 |
|
|
fprintf_filtered (gdb_stdlog,
|
3223 |
|
|
"target_watchpoint_addr_within_range (0x%lx, 0x%lx, %d) = %d\n",
|
3224 |
|
|
(unsigned long) addr, (unsigned long) start, length,
|
3225 |
|
|
retval);
|
3226 |
|
|
return retval;
|
3227 |
|
|
}
|
3228 |
|
|
|
3229 |
|
|
static int
|
3230 |
|
|
debug_to_insert_hw_breakpoint (struct gdbarch *gdbarch,
|
3231 |
|
|
struct bp_target_info *bp_tgt)
|
3232 |
|
|
{
|
3233 |
|
|
int retval;
|
3234 |
|
|
|
3235 |
|
|
retval = debug_target.to_insert_hw_breakpoint (gdbarch, bp_tgt);
|
3236 |
|
|
|
3237 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
3238 |
|
|
"target_insert_hw_breakpoint (0x%lx, xxx) = %ld\n",
|
3239 |
|
|
(unsigned long) bp_tgt->placed_address,
|
3240 |
|
|
(unsigned long) retval);
|
3241 |
|
|
return retval;
|
3242 |
|
|
}
|
3243 |
|
|
|
3244 |
|
|
static int
|
3245 |
|
|
debug_to_remove_hw_breakpoint (struct gdbarch *gdbarch,
|
3246 |
|
|
struct bp_target_info *bp_tgt)
|
3247 |
|
|
{
|
3248 |
|
|
int retval;
|
3249 |
|
|
|
3250 |
|
|
retval = debug_target.to_remove_hw_breakpoint (gdbarch, bp_tgt);
|
3251 |
|
|
|
3252 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
3253 |
|
|
"target_remove_hw_breakpoint (0x%lx, xxx) = %ld\n",
|
3254 |
|
|
(unsigned long) bp_tgt->placed_address,
|
3255 |
|
|
(unsigned long) retval);
|
3256 |
|
|
return retval;
|
3257 |
|
|
}
|
3258 |
|
|
|
3259 |
|
|
static int
|
3260 |
|
|
debug_to_insert_watchpoint (CORE_ADDR addr, int len, int type)
|
3261 |
|
|
{
|
3262 |
|
|
int retval;
|
3263 |
|
|
|
3264 |
|
|
retval = debug_target.to_insert_watchpoint (addr, len, type);
|
3265 |
|
|
|
3266 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
3267 |
|
|
"target_insert_watchpoint (0x%lx, %d, %d) = %ld\n",
|
3268 |
|
|
(unsigned long) addr, len, type, (unsigned long) retval);
|
3269 |
|
|
return retval;
|
3270 |
|
|
}
|
3271 |
|
|
|
3272 |
|
|
static int
|
3273 |
|
|
debug_to_remove_watchpoint (CORE_ADDR addr, int len, int type)
|
3274 |
|
|
{
|
3275 |
|
|
int retval;
|
3276 |
|
|
|
3277 |
|
|
retval = debug_target.to_remove_watchpoint (addr, len, type);
|
3278 |
|
|
|
3279 |
|
|
fprintf_unfiltered (gdb_stdlog,
|
3280 |
|
|
"target_remove_watchpoint (0x%lx, %d, %d) = %ld\n",
|
3281 |
|
|
(unsigned long) addr, len, type, (unsigned long) retval);
|
3282 |
|
|
return retval;
|
3283 |
|
|
}
|
3284 |
|
|
|
3285 |
|
|
static void
|
3286 |
|
|
debug_to_terminal_init (void)
|
3287 |
|
|
{
|
3288 |
|
|
debug_target.to_terminal_init ();
|
3289 |
|
|
|
3290 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n");
|
3291 |
|
|
}
|
3292 |
|
|
|
3293 |
|
|
static void
|
3294 |
|
|
debug_to_terminal_inferior (void)
|
3295 |
|
|
{
|
3296 |
|
|
debug_target.to_terminal_inferior ();
|
3297 |
|
|
|
3298 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n");
|
3299 |
|
|
}
|
3300 |
|
|
|
3301 |
|
|
static void
|
3302 |
|
|
debug_to_terminal_ours_for_output (void)
|
3303 |
|
|
{
|
3304 |
|
|
debug_target.to_terminal_ours_for_output ();
|
3305 |
|
|
|
3306 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n");
|
3307 |
|
|
}
|
3308 |
|
|
|
3309 |
|
|
static void
|
3310 |
|
|
debug_to_terminal_ours (void)
|
3311 |
|
|
{
|
3312 |
|
|
debug_target.to_terminal_ours ();
|
3313 |
|
|
|
3314 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n");
|
3315 |
|
|
}
|
3316 |
|
|
|
3317 |
|
|
static void
|
3318 |
|
|
debug_to_terminal_save_ours (void)
|
3319 |
|
|
{
|
3320 |
|
|
debug_target.to_terminal_save_ours ();
|
3321 |
|
|
|
3322 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_terminal_save_ours ()\n");
|
3323 |
|
|
}
|
3324 |
|
|
|
3325 |
|
|
static void
|
3326 |
|
|
debug_to_terminal_info (char *arg, int from_tty)
|
3327 |
|
|
{
|
3328 |
|
|
debug_target.to_terminal_info (arg, from_tty);
|
3329 |
|
|
|
3330 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg,
|
3331 |
|
|
from_tty);
|
3332 |
|
|
}
|
3333 |
|
|
|
3334 |
|
|
static void
|
3335 |
|
|
debug_to_load (char *args, int from_tty)
|
3336 |
|
|
{
|
3337 |
|
|
debug_target.to_load (args, from_tty);
|
3338 |
|
|
|
3339 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty);
|
3340 |
|
|
}
|
3341 |
|
|
|
3342 |
|
|
static int
|
3343 |
|
|
debug_to_lookup_symbol (char *name, CORE_ADDR *addrp)
|
3344 |
|
|
{
|
3345 |
|
|
int retval;
|
3346 |
|
|
|
3347 |
|
|
retval = debug_target.to_lookup_symbol (name, addrp);
|
3348 |
|
|
|
3349 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name);
|
3350 |
|
|
|
3351 |
|
|
return retval;
|
3352 |
|
|
}
|
3353 |
|
|
|
3354 |
|
|
static void
|
3355 |
|
|
debug_to_post_startup_inferior (ptid_t ptid)
|
3356 |
|
|
{
|
3357 |
|
|
debug_target.to_post_startup_inferior (ptid);
|
3358 |
|
|
|
3359 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n",
|
3360 |
|
|
PIDGET (ptid));
|
3361 |
|
|
}
|
3362 |
|
|
|
3363 |
|
|
static void
|
3364 |
|
|
debug_to_acknowledge_created_inferior (int pid)
|
3365 |
|
|
{
|
3366 |
|
|
debug_target.to_acknowledge_created_inferior (pid);
|
3367 |
|
|
|
3368 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n",
|
3369 |
|
|
pid);
|
3370 |
|
|
}
|
3371 |
|
|
|
3372 |
|
|
static void
|
3373 |
|
|
debug_to_insert_fork_catchpoint (int pid)
|
3374 |
|
|
{
|
3375 |
|
|
debug_target.to_insert_fork_catchpoint (pid);
|
3376 |
|
|
|
3377 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d)\n",
|
3378 |
|
|
pid);
|
3379 |
|
|
}
|
3380 |
|
|
|
3381 |
|
|
static int
|
3382 |
|
|
debug_to_remove_fork_catchpoint (int pid)
|
3383 |
|
|
{
|
3384 |
|
|
int retval;
|
3385 |
|
|
|
3386 |
|
|
retval = debug_target.to_remove_fork_catchpoint (pid);
|
3387 |
|
|
|
3388 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n",
|
3389 |
|
|
pid, retval);
|
3390 |
|
|
|
3391 |
|
|
return retval;
|
3392 |
|
|
}
|
3393 |
|
|
|
3394 |
|
|
static void
|
3395 |
|
|
debug_to_insert_vfork_catchpoint (int pid)
|
3396 |
|
|
{
|
3397 |
|
|
debug_target.to_insert_vfork_catchpoint (pid);
|
3398 |
|
|
|
3399 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)\n",
|
3400 |
|
|
pid);
|
3401 |
|
|
}
|
3402 |
|
|
|
3403 |
|
|
static int
|
3404 |
|
|
debug_to_remove_vfork_catchpoint (int pid)
|
3405 |
|
|
{
|
3406 |
|
|
int retval;
|
3407 |
|
|
|
3408 |
|
|
retval = debug_target.to_remove_vfork_catchpoint (pid);
|
3409 |
|
|
|
3410 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n",
|
3411 |
|
|
pid, retval);
|
3412 |
|
|
|
3413 |
|
|
return retval;
|
3414 |
|
|
}
|
3415 |
|
|
|
3416 |
|
|
static void
|
3417 |
|
|
debug_to_insert_exec_catchpoint (int pid)
|
3418 |
|
|
{
|
3419 |
|
|
debug_target.to_insert_exec_catchpoint (pid);
|
3420 |
|
|
|
3421 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d)\n",
|
3422 |
|
|
pid);
|
3423 |
|
|
}
|
3424 |
|
|
|
3425 |
|
|
static int
|
3426 |
|
|
debug_to_remove_exec_catchpoint (int pid)
|
3427 |
|
|
{
|
3428 |
|
|
int retval;
|
3429 |
|
|
|
3430 |
|
|
retval = debug_target.to_remove_exec_catchpoint (pid);
|
3431 |
|
|
|
3432 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n",
|
3433 |
|
|
pid, retval);
|
3434 |
|
|
|
3435 |
|
|
return retval;
|
3436 |
|
|
}
|
3437 |
|
|
|
3438 |
|
|
static int
|
3439 |
|
|
debug_to_has_exited (int pid, int wait_status, int *exit_status)
|
3440 |
|
|
{
|
3441 |
|
|
int has_exited;
|
3442 |
|
|
|
3443 |
|
|
has_exited = debug_target.to_has_exited (pid, wait_status, exit_status);
|
3444 |
|
|
|
3445 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_has_exited (%d, %d, %d) = %d\n",
|
3446 |
|
|
pid, wait_status, *exit_status, has_exited);
|
3447 |
|
|
|
3448 |
|
|
return has_exited;
|
3449 |
|
|
}
|
3450 |
|
|
|
3451 |
|
|
static int
|
3452 |
|
|
debug_to_can_run (void)
|
3453 |
|
|
{
|
3454 |
|
|
int retval;
|
3455 |
|
|
|
3456 |
|
|
retval = debug_target.to_can_run ();
|
3457 |
|
|
|
3458 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval);
|
3459 |
|
|
|
3460 |
|
|
return retval;
|
3461 |
|
|
}
|
3462 |
|
|
|
3463 |
|
|
static void
|
3464 |
|
|
debug_to_notice_signals (ptid_t ptid)
|
3465 |
|
|
{
|
3466 |
|
|
debug_target.to_notice_signals (ptid);
|
3467 |
|
|
|
3468 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n",
|
3469 |
|
|
PIDGET (ptid));
|
3470 |
|
|
}
|
3471 |
|
|
|
3472 |
|
|
static struct gdbarch *
|
3473 |
|
|
debug_to_thread_architecture (struct target_ops *ops, ptid_t ptid)
|
3474 |
|
|
{
|
3475 |
|
|
struct gdbarch *retval;
|
3476 |
|
|
|
3477 |
|
|
retval = debug_target.to_thread_architecture (ops, ptid);
|
3478 |
|
|
|
3479 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_thread_architecture (%s) = %s [%s]\n",
|
3480 |
|
|
target_pid_to_str (ptid), host_address_to_string (retval),
|
3481 |
|
|
gdbarch_bfd_arch_info (retval)->printable_name);
|
3482 |
|
|
return retval;
|
3483 |
|
|
}
|
3484 |
|
|
|
3485 |
|
|
static void
|
3486 |
|
|
debug_to_stop (ptid_t ptid)
|
3487 |
|
|
{
|
3488 |
|
|
debug_target.to_stop (ptid);
|
3489 |
|
|
|
3490 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_stop (%s)\n",
|
3491 |
|
|
target_pid_to_str (ptid));
|
3492 |
|
|
}
|
3493 |
|
|
|
3494 |
|
|
static void
|
3495 |
|
|
debug_to_rcmd (char *command,
|
3496 |
|
|
struct ui_file *outbuf)
|
3497 |
|
|
{
|
3498 |
|
|
debug_target.to_rcmd (command, outbuf);
|
3499 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command);
|
3500 |
|
|
}
|
3501 |
|
|
|
3502 |
|
|
static char *
|
3503 |
|
|
debug_to_pid_to_exec_file (int pid)
|
3504 |
|
|
{
|
3505 |
|
|
char *exec_file;
|
3506 |
|
|
|
3507 |
|
|
exec_file = debug_target.to_pid_to_exec_file (pid);
|
3508 |
|
|
|
3509 |
|
|
fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n",
|
3510 |
|
|
pid, exec_file);
|
3511 |
|
|
|
3512 |
|
|
return exec_file;
|
3513 |
|
|
}
|
3514 |
|
|
|
3515 |
|
|
static void
|
3516 |
|
|
setup_target_debug (void)
|
3517 |
|
|
{
|
3518 |
|
|
memcpy (&debug_target, ¤t_target, sizeof debug_target);
|
3519 |
|
|
|
3520 |
|
|
current_target.to_open = debug_to_open;
|
3521 |
|
|
current_target.to_post_attach = debug_to_post_attach;
|
3522 |
|
|
current_target.to_prepare_to_store = debug_to_prepare_to_store;
|
3523 |
|
|
current_target.deprecated_xfer_memory = deprecated_debug_xfer_memory;
|
3524 |
|
|
current_target.to_files_info = debug_to_files_info;
|
3525 |
|
|
current_target.to_insert_breakpoint = debug_to_insert_breakpoint;
|
3526 |
|
|
current_target.to_remove_breakpoint = debug_to_remove_breakpoint;
|
3527 |
|
|
current_target.to_can_use_hw_breakpoint = debug_to_can_use_hw_breakpoint;
|
3528 |
|
|
current_target.to_insert_hw_breakpoint = debug_to_insert_hw_breakpoint;
|
3529 |
|
|
current_target.to_remove_hw_breakpoint = debug_to_remove_hw_breakpoint;
|
3530 |
|
|
current_target.to_insert_watchpoint = debug_to_insert_watchpoint;
|
3531 |
|
|
current_target.to_remove_watchpoint = debug_to_remove_watchpoint;
|
3532 |
|
|
current_target.to_stopped_by_watchpoint = debug_to_stopped_by_watchpoint;
|
3533 |
|
|
current_target.to_stopped_data_address = debug_to_stopped_data_address;
|
3534 |
|
|
current_target.to_watchpoint_addr_within_range = debug_to_watchpoint_addr_within_range;
|
3535 |
|
|
current_target.to_region_ok_for_hw_watchpoint = debug_to_region_ok_for_hw_watchpoint;
|
3536 |
|
|
current_target.to_terminal_init = debug_to_terminal_init;
|
3537 |
|
|
current_target.to_terminal_inferior = debug_to_terminal_inferior;
|
3538 |
|
|
current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output;
|
3539 |
|
|
current_target.to_terminal_ours = debug_to_terminal_ours;
|
3540 |
|
|
current_target.to_terminal_save_ours = debug_to_terminal_save_ours;
|
3541 |
|
|
current_target.to_terminal_info = debug_to_terminal_info;
|
3542 |
|
|
current_target.to_load = debug_to_load;
|
3543 |
|
|
current_target.to_lookup_symbol = debug_to_lookup_symbol;
|
3544 |
|
|
current_target.to_post_startup_inferior = debug_to_post_startup_inferior;
|
3545 |
|
|
current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior;
|
3546 |
|
|
current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint;
|
3547 |
|
|
current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint;
|
3548 |
|
|
current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint;
|
3549 |
|
|
current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint;
|
3550 |
|
|
current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint;
|
3551 |
|
|
current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint;
|
3552 |
|
|
current_target.to_has_exited = debug_to_has_exited;
|
3553 |
|
|
current_target.to_can_run = debug_to_can_run;
|
3554 |
|
|
current_target.to_notice_signals = debug_to_notice_signals;
|
3555 |
|
|
current_target.to_stop = debug_to_stop;
|
3556 |
|
|
current_target.to_rcmd = debug_to_rcmd;
|
3557 |
|
|
current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file;
|
3558 |
|
|
current_target.to_thread_architecture = debug_to_thread_architecture;
|
3559 |
|
|
}
|
3560 |
|
|
|
3561 |
|
|
|
3562 |
|
|
static char targ_desc[] =
|
3563 |
|
|
"Names of targets and files being debugged.\n\
|
3564 |
|
|
Shows the entire stack of targets currently in use (including the exec-file,\n\
|
3565 |
|
|
core-file, and process, if any), as well as the symbol file name.";
|
3566 |
|
|
|
3567 |
|
|
static void
|
3568 |
|
|
do_monitor_command (char *cmd,
|
3569 |
|
|
int from_tty)
|
3570 |
|
|
{
|
3571 |
|
|
if ((current_target.to_rcmd
|
3572 |
|
|
== (void (*) (char *, struct ui_file *)) tcomplain)
|
3573 |
|
|
|| (current_target.to_rcmd == debug_to_rcmd
|
3574 |
|
|
&& (debug_target.to_rcmd
|
3575 |
|
|
== (void (*) (char *, struct ui_file *)) tcomplain)))
|
3576 |
|
|
error (_("\"monitor\" command not supported by this target."));
|
3577 |
|
|
target_rcmd (cmd, gdb_stdtarg);
|
3578 |
|
|
}
|
3579 |
|
|
|
3580 |
|
|
/* Print the name of each layers of our target stack. */
|
3581 |
|
|
|
3582 |
|
|
static void
|
3583 |
|
|
maintenance_print_target_stack (char *cmd, int from_tty)
|
3584 |
|
|
{
|
3585 |
|
|
struct target_ops *t;
|
3586 |
|
|
|
3587 |
|
|
printf_filtered (_("The current target stack is:\n"));
|
3588 |
|
|
|
3589 |
|
|
for (t = target_stack; t != NULL; t = t->beneath)
|
3590 |
|
|
{
|
3591 |
|
|
printf_filtered (" - %s (%s)\n", t->to_shortname, t->to_longname);
|
3592 |
|
|
}
|
3593 |
|
|
}
|
3594 |
|
|
|
3595 |
|
|
/* Controls if async mode is permitted. */
|
3596 |
|
|
int target_async_permitted = 0;
|
3597 |
|
|
|
3598 |
|
|
/* The set command writes to this variable. If the inferior is
|
3599 |
|
|
executing, linux_nat_async_permitted is *not* updated. */
|
3600 |
|
|
static int target_async_permitted_1 = 0;
|
3601 |
|
|
|
3602 |
|
|
static void
|
3603 |
|
|
set_maintenance_target_async_permitted (char *args, int from_tty,
|
3604 |
|
|
struct cmd_list_element *c)
|
3605 |
|
|
{
|
3606 |
|
|
if (have_live_inferiors ())
|
3607 |
|
|
{
|
3608 |
|
|
target_async_permitted_1 = target_async_permitted;
|
3609 |
|
|
error (_("Cannot change this setting while the inferior is running."));
|
3610 |
|
|
}
|
3611 |
|
|
|
3612 |
|
|
target_async_permitted = target_async_permitted_1;
|
3613 |
|
|
}
|
3614 |
|
|
|
3615 |
|
|
static void
|
3616 |
|
|
show_maintenance_target_async_permitted (struct ui_file *file, int from_tty,
|
3617 |
|
|
struct cmd_list_element *c,
|
3618 |
|
|
const char *value)
|
3619 |
|
|
{
|
3620 |
|
|
fprintf_filtered (file, _("\
|
3621 |
|
|
Controlling the inferior in asynchronous mode is %s.\n"), value);
|
3622 |
|
|
}
|
3623 |
|
|
|
3624 |
|
|
void
|
3625 |
|
|
initialize_targets (void)
|
3626 |
|
|
{
|
3627 |
|
|
init_dummy_target ();
|
3628 |
|
|
push_target (&dummy_target);
|
3629 |
|
|
|
3630 |
|
|
add_info ("target", target_info, targ_desc);
|
3631 |
|
|
add_info ("files", target_info, targ_desc);
|
3632 |
|
|
|
3633 |
|
|
add_setshow_zinteger_cmd ("target", class_maintenance, &targetdebug, _("\
|
3634 |
|
|
Set target debugging."), _("\
|
3635 |
|
|
Show target debugging."), _("\
|
3636 |
|
|
When non-zero, target debugging is enabled. Higher numbers are more\n\
|
3637 |
|
|
verbose. Changes do not take effect until the next \"run\" or \"target\"\n\
|
3638 |
|
|
command."),
|
3639 |
|
|
NULL,
|
3640 |
|
|
show_targetdebug,
|
3641 |
|
|
&setdebuglist, &showdebuglist);
|
3642 |
|
|
|
3643 |
|
|
add_setshow_boolean_cmd ("trust-readonly-sections", class_support,
|
3644 |
|
|
&trust_readonly, _("\
|
3645 |
|
|
Set mode for reading from readonly sections."), _("\
|
3646 |
|
|
Show mode for reading from readonly sections."), _("\
|
3647 |
|
|
When this mode is on, memory reads from readonly sections (such as .text)\n\
|
3648 |
|
|
will be read from the object file instead of from the target. This will\n\
|
3649 |
|
|
result in significant performance improvement for remote targets."),
|
3650 |
|
|
NULL,
|
3651 |
|
|
show_trust_readonly,
|
3652 |
|
|
&setlist, &showlist);
|
3653 |
|
|
|
3654 |
|
|
add_com ("monitor", class_obscure, do_monitor_command,
|
3655 |
|
|
_("Send a command to the remote monitor (remote targets only)."));
|
3656 |
|
|
|
3657 |
|
|
add_cmd ("target-stack", class_maintenance, maintenance_print_target_stack,
|
3658 |
|
|
_("Print the name of each layer of the internal target stack."),
|
3659 |
|
|
&maintenanceprintlist);
|
3660 |
|
|
|
3661 |
|
|
add_setshow_boolean_cmd ("target-async", no_class,
|
3662 |
|
|
&target_async_permitted_1, _("\
|
3663 |
|
|
Set whether gdb controls the inferior in asynchronous mode."), _("\
|
3664 |
|
|
Show whether gdb controls the inferior in asynchronous mode."), _("\
|
3665 |
|
|
Tells gdb whether to control the inferior in asynchronous mode."),
|
3666 |
|
|
set_maintenance_target_async_permitted,
|
3667 |
|
|
show_maintenance_target_async_permitted,
|
3668 |
|
|
&setlist,
|
3669 |
|
|
&showlist);
|
3670 |
|
|
|
3671 |
|
|
add_setshow_boolean_cmd ("stack-cache", class_support,
|
3672 |
|
|
&stack_cache_enabled_p_1, _("\
|
3673 |
|
|
Set cache use for stack access."), _("\
|
3674 |
|
|
Show cache use for stack access."), _("\
|
3675 |
|
|
When on, use the data cache for all stack access, regardless of any\n\
|
3676 |
|
|
configured memory regions. This improves remote performance significantly.\n\
|
3677 |
|
|
By default, caching for stack access is on."),
|
3678 |
|
|
set_stack_cache_enabled_p,
|
3679 |
|
|
show_stack_cache_enabled_p,
|
3680 |
|
|
&setlist, &showlist);
|
3681 |
|
|
|
3682 |
|
|
target_dcache = dcache_init ();
|
3683 |
|
|
}
|