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sfurman |
/* Multi-process/thread control defs for GDB, the GNU debugger.
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Copyright 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1997, 1998, 1999,
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2000
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Free Software Foundation, Inc.
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Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
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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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef GDBTHREAD_H
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#define GDBTHREAD_H
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/* For bpstat */
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#include "breakpoint.h"
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struct thread_info
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{
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struct thread_info *next;
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ptid_t ptid; /* "Actual process id";
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In fact, this may be overloaded with
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kernel thread id, etc. */
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int num; /* Convenient handle (GDB thread id) */
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/* State from wait_for_inferior */
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CORE_ADDR prev_pc;
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CORE_ADDR prev_func_start;
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char *prev_func_name;
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struct breakpoint *step_resume_breakpoint;
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struct breakpoint *through_sigtramp_breakpoint;
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CORE_ADDR step_range_start;
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CORE_ADDR step_range_end;
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CORE_ADDR step_frame_address;
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CORE_ADDR step_sp;
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int current_line;
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struct symtab *current_symtab;
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int trap_expected;
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int handling_longjmp;
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int another_trap;
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/* This is set TRUE when a catchpoint of a shared library event
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triggers. Since we don't wish to leave the inferior in the
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solib hook when we report the event, we step the inferior
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back to user code before stopping and reporting the event. */
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int stepping_through_solib_after_catch;
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/* When stepping_through_solib_after_catch is TRUE, this is a
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list of the catchpoints that should be reported as triggering
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when we finally do stop stepping. */
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bpstat stepping_through_solib_catchpoints;
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/* This is set to TRUE when this thread is in a signal handler
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trampoline and we're single-stepping through it. */
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int stepping_through_sigtramp;
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/* Private data used by the target vector implementation. */
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struct private_thread_info *private;
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};
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/* Create an empty thread list, or empty the existing one. */
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extern void init_thread_list (void);
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/* Add a thread to the thread list.
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Note that add_thread now returns the handle of the new thread,
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so that the caller may initialize the private thread data. */
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extern struct thread_info *add_thread (ptid_t ptid);
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/* Delete an existing thread list entry. */
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extern void delete_thread (ptid_t);
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/* Delete a step_resume_breakpoint from the thread database. */
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extern void delete_step_resume_breakpoint (void *);
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/* Translate the integer thread id (GDB's homegrown id, not the system's)
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into a "pid" (which may be overloaded with extra thread information). */
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extern ptid_t thread_id_to_pid (int);
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/* Translate a 'pid' (which may be overloaded with extra thread information)
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into the integer thread id (GDB's homegrown id, not the system's). */
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extern int pid_to_thread_id (ptid_t ptid);
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/* Boolean test for an already-known pid (which may be overloaded with
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extra thread information). */
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extern int in_thread_list (ptid_t ptid);
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/* Boolean test for an already-known thread id (GDB's homegrown id,
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not the system's). */
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extern int valid_thread_id (int thread);
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/* Search function to lookup a thread by 'pid'. */
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extern struct thread_info *find_thread_pid (ptid_t ptid);
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/* Iterator function to call a user-provided callback function
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once for each known thread. */
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typedef int (*thread_callback_func) (struct thread_info *, void *);
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extern struct thread_info *iterate_over_threads (thread_callback_func, void *);
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/* infrun context switch: save the debugger state for the given thread. */
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extern void save_infrun_state (ptid_t ptid,
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CORE_ADDR prev_pc,
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CORE_ADDR prev_func_start,
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char *prev_func_name,
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int trap_expected,
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struct breakpoint *step_resume_breakpoint,
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struct breakpoint *through_sigtramp_breakpoint,
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CORE_ADDR step_range_start,
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CORE_ADDR step_range_end,
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CORE_ADDR step_frame_address,
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int handling_longjmp,
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int another_trap,
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int stepping_through_solib_after_catch,
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bpstat stepping_through_solib_catchpoints,
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int stepping_through_sigtramp,
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int current_line,
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struct symtab *current_symtab,
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CORE_ADDR step_sp);
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/* infrun context switch: load the debugger state previously saved
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for the given thread. */
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extern void load_infrun_state (ptid_t ptid,
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CORE_ADDR *prev_pc,
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CORE_ADDR *prev_func_start,
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char **prev_func_name,
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int *trap_expected,
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struct breakpoint **step_resume_breakpoint,
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struct breakpoint **through_sigtramp_breakpoint,
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CORE_ADDR *step_range_start,
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CORE_ADDR *step_range_end,
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CORE_ADDR *step_frame_address,
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int *handling_longjmp,
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int *another_trap,
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int *stepping_through_solib_affter_catch,
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bpstat *stepping_through_solib_catchpoints,
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int *stepping_through_sigtramp,
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int *current_line,
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struct symtab **current_symtab,
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CORE_ADDR *step_sp);
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/* Commands with a prefix of `thread'. */
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extern struct cmd_list_element *thread_cmd_list;
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#endif /* GDBTHREAD_H */
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