/* Multi-process/thread control for GDB, the GNU debugger.
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/* Multi-process/thread control for GDB, the GNU debugger.
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Copyright 1986, 1987, 1988, 1993, 1998, 1999, 2000
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Copyright 1986, 1987, 1988, 1993, 1998, 1999, 2000
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Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
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Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of GDB.
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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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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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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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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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(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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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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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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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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "defs.h"
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#include "symtab.h"
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#include "symtab.h"
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#include "frame.h"
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#include "frame.h"
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#include "inferior.h"
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#include "inferior.h"
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#include "environ.h"
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#include "environ.h"
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#include "value.h"
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#include "value.h"
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#include "target.h"
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#include "target.h"
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#include "gdbthread.h"
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#include "gdbthread.h"
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#include "command.h"
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#include "command.h"
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#include "gdbcmd.h"
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#include "gdbcmd.h"
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#include <ctype.h>
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#include <ctype.h>
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#include <sys/types.h>
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#include <sys/types.h>
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#include <signal.h>
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#include <signal.h>
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#ifdef UI_OUT
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#ifdef UI_OUT
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#include "ui-out.h"
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#include "ui-out.h"
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#endif
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#endif
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/*#include "lynxos-core.h" */
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/*#include "lynxos-core.h" */
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/* Definition of struct thread_info exported to gdbthread.h */
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/* Definition of struct thread_info exported to gdbthread.h */
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/* Prototypes for exported functions. */
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/* Prototypes for exported functions. */
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void _initialize_thread PARAMS ((void));
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void _initialize_thread PARAMS ((void));
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/* Prototypes for local functions. */
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/* Prototypes for local functions. */
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static struct thread_info *thread_list = NULL;
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static struct thread_info *thread_list = NULL;
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static int highest_thread_num;
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static int highest_thread_num;
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static struct thread_info *find_thread_id PARAMS ((int num));
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static struct thread_info *find_thread_id PARAMS ((int num));
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static void thread_command PARAMS ((char *tidstr, int from_tty));
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static void thread_command PARAMS ((char *tidstr, int from_tty));
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static void thread_apply_all_command PARAMS ((char *, int));
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static void thread_apply_all_command PARAMS ((char *, int));
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static int thread_alive PARAMS ((struct thread_info *));
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static int thread_alive PARAMS ((struct thread_info *));
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static void info_threads_command PARAMS ((char *, int));
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static void info_threads_command PARAMS ((char *, int));
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static void thread_apply_command PARAMS ((char *, int));
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static void thread_apply_command PARAMS ((char *, int));
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static void restore_current_thread PARAMS ((int));
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static void restore_current_thread PARAMS ((int));
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static void switch_to_thread PARAMS ((int pid));
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static void switch_to_thread PARAMS ((int pid));
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static void prune_threads PARAMS ((void));
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static void prune_threads PARAMS ((void));
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void
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void
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init_thread_list ()
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init_thread_list ()
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{
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{
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struct thread_info *tp, *tpnext;
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struct thread_info *tp, *tpnext;
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if (!thread_list)
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if (!thread_list)
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return;
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return;
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for (tp = thread_list; tp; tp = tpnext)
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for (tp = thread_list; tp; tp = tpnext)
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{
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{
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tpnext = tp->next;
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tpnext = tp->next;
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free (tp);
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free (tp);
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}
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}
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thread_list = NULL;
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thread_list = NULL;
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highest_thread_num = 0;
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highest_thread_num = 0;
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}
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}
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/* add_thread now returns a pointer to the new thread_info,
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/* add_thread now returns a pointer to the new thread_info,
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so that back_ends can initialize their private data. */
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so that back_ends can initialize their private data. */
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struct thread_info *
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struct thread_info *
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add_thread (pid)
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add_thread (pid)
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int pid;
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int pid;
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{
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{
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struct thread_info *tp;
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struct thread_info *tp;
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tp = (struct thread_info *) xmalloc (sizeof (struct thread_info));
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tp = (struct thread_info *) xmalloc (sizeof (struct thread_info));
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tp->pid = pid;
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tp->pid = pid;
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tp->num = ++highest_thread_num;
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tp->num = ++highest_thread_num;
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tp->prev_pc = 0;
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tp->prev_pc = 0;
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tp->prev_func_start = 0;
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tp->prev_func_start = 0;
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tp->prev_func_name = NULL;
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tp->prev_func_name = NULL;
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tp->step_range_start = 0;
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tp->step_range_start = 0;
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tp->step_range_end = 0;
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tp->step_range_end = 0;
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tp->step_frame_address = 0;
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tp->step_frame_address = 0;
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tp->step_resume_breakpoint = 0;
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tp->step_resume_breakpoint = 0;
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tp->through_sigtramp_breakpoint = 0;
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tp->through_sigtramp_breakpoint = 0;
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tp->handling_longjmp = 0;
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tp->handling_longjmp = 0;
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tp->trap_expected = 0;
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tp->trap_expected = 0;
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tp->another_trap = 0;
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tp->another_trap = 0;
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tp->stepping_through_solib_after_catch = 0;
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tp->stepping_through_solib_after_catch = 0;
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tp->stepping_through_solib_catchpoints = NULL;
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tp->stepping_through_solib_catchpoints = NULL;
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tp->stepping_through_sigtramp = 0;
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tp->stepping_through_sigtramp = 0;
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tp->next = thread_list;
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tp->next = thread_list;
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tp->private = NULL;
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tp->private = NULL;
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thread_list = tp;
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thread_list = tp;
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return tp;
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return tp;
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}
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}
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void
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void
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delete_thread (pid)
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delete_thread (pid)
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int pid;
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int pid;
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{
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{
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struct thread_info *tp, *tpprev;
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struct thread_info *tp, *tpprev;
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tpprev = NULL;
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tpprev = NULL;
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for (tp = thread_list; tp; tpprev = tp, tp = tp->next)
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for (tp = thread_list; tp; tpprev = tp, tp = tp->next)
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if (tp->pid == pid)
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if (tp->pid == pid)
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break;
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break;
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if (!tp)
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if (!tp)
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return;
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return;
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if (tpprev)
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if (tpprev)
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tpprev->next = tp->next;
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tpprev->next = tp->next;
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else
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else
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thread_list = tp->next;
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thread_list = tp->next;
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/* NOTE: this will take care of any left-over step_resume breakpoints,
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/* NOTE: this will take care of any left-over step_resume breakpoints,
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but not any user-specified thread-specific breakpoints. */
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but not any user-specified thread-specific breakpoints. */
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if (tp->step_resume_breakpoint)
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if (tp->step_resume_breakpoint)
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delete_breakpoint (tp->step_resume_breakpoint);
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delete_breakpoint (tp->step_resume_breakpoint);
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/* FIXME: do I ever need to call the back-end to give it a
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/* FIXME: do I ever need to call the back-end to give it a
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chance at this private data before deleting the thread? */
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chance at this private data before deleting the thread? */
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if (tp->private)
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if (tp->private)
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free (tp->private);
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free (tp->private);
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free (tp);
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free (tp);
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return;
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return;
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}
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}
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static struct thread_info *
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static struct thread_info *
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find_thread_id (num)
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find_thread_id (num)
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int num;
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int num;
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{
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{
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struct thread_info *tp;
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struct thread_info *tp;
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for (tp = thread_list; tp; tp = tp->next)
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for (tp = thread_list; tp; tp = tp->next)
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if (tp->num == num)
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if (tp->num == num)
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return tp;
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return tp;
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return NULL;
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return NULL;
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}
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}
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/* Find a thread_info by matching 'pid'. */
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/* Find a thread_info by matching 'pid'. */
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struct thread_info *
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struct thread_info *
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find_thread_pid (pid)
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find_thread_pid (pid)
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int pid;
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int pid;
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{
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{
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struct thread_info *tp;
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struct thread_info *tp;
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for (tp = thread_list; tp; tp = tp->next)
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for (tp = thread_list; tp; tp = tp->next)
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if (tp->pid == pid)
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if (tp->pid == pid)
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return tp;
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return tp;
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return NULL;
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return NULL;
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}
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}
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/*
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/*
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* Thread iterator function.
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* Thread iterator function.
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*
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*
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* Calls a callback function once for each thread, so long as
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* Calls a callback function once for each thread, so long as
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* the callback function returns false. If the callback function
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* the callback function returns false. If the callback function
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* returns true, the iteration will end and the current thread
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* returns true, the iteration will end and the current thread
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* will be returned. This can be useful for implementing a
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* will be returned. This can be useful for implementing a
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* search for a thread with arbitrary attributes, or for applying
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* search for a thread with arbitrary attributes, or for applying
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* some operation to every thread.
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* some operation to every thread.
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*
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*
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* FIXME: some of the existing functionality, such as
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* FIXME: some of the existing functionality, such as
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* "Thread apply all", might be rewritten using this functionality.
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* "Thread apply all", might be rewritten using this functionality.
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*/
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*/
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struct thread_info *
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struct thread_info *
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iterate_over_threads (callback, data)
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iterate_over_threads (callback, data)
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int (*callback) ();
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int (*callback) ();
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void *data;
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void *data;
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{
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{
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struct thread_info *tp;
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struct thread_info *tp;
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for (tp = thread_list; tp; tp = tp->next)
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for (tp = thread_list; tp; tp = tp->next)
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if ((*callback) (tp, data))
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if ((*callback) (tp, data))
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return tp;
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return tp;
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return NULL;
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return NULL;
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}
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}
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int
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int
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valid_thread_id (num)
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valid_thread_id (num)
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int num;
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int num;
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{
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{
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struct thread_info *tp;
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struct thread_info *tp;
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for (tp = thread_list; tp; tp = tp->next)
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for (tp = thread_list; tp; tp = tp->next)
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if (tp->num == num)
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if (tp->num == num)
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return 1;
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return 1;
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return 0;
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return 0;
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}
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}
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int
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int
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pid_to_thread_id (pid)
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pid_to_thread_id (pid)
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int pid;
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int pid;
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{
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{
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struct thread_info *tp;
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struct thread_info *tp;
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for (tp = thread_list; tp; tp = tp->next)
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for (tp = thread_list; tp; tp = tp->next)
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if (tp->pid == pid)
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if (tp->pid == pid)
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return tp->num;
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return tp->num;
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return 0;
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return 0;
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}
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}
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int
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int
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thread_id_to_pid (num)
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thread_id_to_pid (num)
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int num;
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int num;
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{
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{
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struct thread_info *thread = find_thread_id (num);
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struct thread_info *thread = find_thread_id (num);
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if (thread)
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if (thread)
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return thread->pid;
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return thread->pid;
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else
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else
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return -1;
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return -1;
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}
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}
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int
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int
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in_thread_list (pid)
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in_thread_list (pid)
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int pid;
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int pid;
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{
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{
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struct thread_info *tp;
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struct thread_info *tp;
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for (tp = thread_list; tp; tp = tp->next)
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for (tp = thread_list; tp; tp = tp->next)
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if (tp->pid == pid)
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if (tp->pid == pid)
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return 1;
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return 1;
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return 0; /* Never heard of 'im */
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return 0; /* Never heard of 'im */
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}
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}
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#ifdef UI_OUT
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#ifdef UI_OUT
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/* Print a list of thread ids currently known, and the total number of
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/* Print a list of thread ids currently known, and the total number of
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threads. To be used from within catch_errors. */
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threads. To be used from within catch_errors. */
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static int
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static int
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do_captured_list_thread_ids (void *arg)
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do_captured_list_thread_ids (void *arg)
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{
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{
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struct thread_info *tp;
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struct thread_info *tp;
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int num = 0;
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int num = 0;
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ui_out_list_begin (uiout, "thread-ids");
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ui_out_list_begin (uiout, "thread-ids");
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for (tp = thread_list; tp; tp = tp->next)
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for (tp = thread_list; tp; tp = tp->next)
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{
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{
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num++;
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num++;
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ui_out_field_int (uiout, "thread-id", tp->num);
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ui_out_field_int (uiout, "thread-id", tp->num);
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}
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}
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ui_out_list_end (uiout);
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ui_out_list_end (uiout);
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ui_out_field_int (uiout, "number-of-threads", num);
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ui_out_field_int (uiout, "number-of-threads", num);
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return GDB_RC_OK;
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return GDB_RC_OK;
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}
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}
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/* Official gdblib interface function to get a list of thread ids and
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/* Official gdblib interface function to get a list of thread ids and
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the total number. */
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the total number. */
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enum gdb_rc
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enum gdb_rc
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gdb_list_thread_ids (/* output object */)
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gdb_list_thread_ids (/* output object */)
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{
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{
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return catch_errors (do_captured_list_thread_ids, NULL,
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return catch_errors (do_captured_list_thread_ids, NULL,
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NULL, RETURN_MASK_ALL);
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NULL, RETURN_MASK_ALL);
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}
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}
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#endif
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#endif
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/* Load infrun state for the thread PID. */
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/* Load infrun state for the thread PID. */
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|
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void
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void
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load_infrun_state (pid, prev_pc, prev_func_start, prev_func_name,
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load_infrun_state (pid, prev_pc, prev_func_start, prev_func_name,
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trap_expected, step_resume_breakpoint,
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trap_expected, step_resume_breakpoint,
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through_sigtramp_breakpoint, step_range_start,
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through_sigtramp_breakpoint, step_range_start,
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step_range_end, step_frame_address,
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step_range_end, step_frame_address,
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handling_longjmp, another_trap,
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handling_longjmp, another_trap,
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stepping_through_solib_after_catch,
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stepping_through_solib_after_catch,
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stepping_through_solib_catchpoints,
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stepping_through_solib_catchpoints,
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stepping_through_sigtramp)
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stepping_through_sigtramp)
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int pid;
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int pid;
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CORE_ADDR *prev_pc;
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CORE_ADDR *prev_pc;
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CORE_ADDR *prev_func_start;
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CORE_ADDR *prev_func_start;
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char **prev_func_name;
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char **prev_func_name;
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int *trap_expected;
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int *trap_expected;
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struct breakpoint **step_resume_breakpoint;
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struct breakpoint **step_resume_breakpoint;
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struct breakpoint **through_sigtramp_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_start;
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CORE_ADDR *step_range_end;
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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_frame_address;
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int *handling_longjmp;
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int *handling_longjmp;
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int *another_trap;
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int *another_trap;
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int *stepping_through_solib_after_catch;
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int *stepping_through_solib_after_catch;
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bpstat *stepping_through_solib_catchpoints;
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bpstat *stepping_through_solib_catchpoints;
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int *stepping_through_sigtramp;
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int *stepping_through_sigtramp;
|
{
|
{
|
struct thread_info *tp;
|
struct thread_info *tp;
|
|
|
/* If we can't find the thread, then we're debugging a single threaded
|
/* If we can't find the thread, then we're debugging a single threaded
|
process. No need to do anything in that case. */
|
process. No need to do anything in that case. */
|
tp = find_thread_id (pid_to_thread_id (pid));
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tp = find_thread_id (pid_to_thread_id (pid));
|
if (tp == NULL)
|
if (tp == NULL)
|
return;
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return;
|
|
|
*prev_pc = tp->prev_pc;
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*prev_pc = tp->prev_pc;
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*prev_func_start = tp->prev_func_start;
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*prev_func_start = tp->prev_func_start;
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*prev_func_name = tp->prev_func_name;
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*prev_func_name = tp->prev_func_name;
|
*step_resume_breakpoint = tp->step_resume_breakpoint;
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*step_resume_breakpoint = tp->step_resume_breakpoint;
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*step_range_start = tp->step_range_start;
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*step_range_start = tp->step_range_start;
|
*step_range_end = tp->step_range_end;
|
*step_range_end = tp->step_range_end;
|
*step_frame_address = tp->step_frame_address;
|
*step_frame_address = tp->step_frame_address;
|
*through_sigtramp_breakpoint = tp->through_sigtramp_breakpoint;
|
*through_sigtramp_breakpoint = tp->through_sigtramp_breakpoint;
|
*handling_longjmp = tp->handling_longjmp;
|
*handling_longjmp = tp->handling_longjmp;
|
*trap_expected = tp->trap_expected;
|
*trap_expected = tp->trap_expected;
|
*another_trap = tp->another_trap;
|
*another_trap = tp->another_trap;
|
*stepping_through_solib_after_catch = tp->stepping_through_solib_after_catch;
|
*stepping_through_solib_after_catch = tp->stepping_through_solib_after_catch;
|
*stepping_through_solib_catchpoints = tp->stepping_through_solib_catchpoints;
|
*stepping_through_solib_catchpoints = tp->stepping_through_solib_catchpoints;
|
*stepping_through_sigtramp = tp->stepping_through_sigtramp;
|
*stepping_through_sigtramp = tp->stepping_through_sigtramp;
|
}
|
}
|
|
|
/* Save infrun state for the thread PID. */
|
/* Save infrun state for the thread PID. */
|
|
|
void
|
void
|
save_infrun_state (pid, prev_pc, prev_func_start, prev_func_name,
|
save_infrun_state (pid, prev_pc, prev_func_start, prev_func_name,
|
trap_expected, step_resume_breakpoint,
|
trap_expected, step_resume_breakpoint,
|
through_sigtramp_breakpoint, step_range_start,
|
through_sigtramp_breakpoint, step_range_start,
|
step_range_end, step_frame_address,
|
step_range_end, step_frame_address,
|
handling_longjmp, another_trap,
|
handling_longjmp, another_trap,
|
stepping_through_solib_after_catch,
|
stepping_through_solib_after_catch,
|
stepping_through_solib_catchpoints,
|
stepping_through_solib_catchpoints,
|
stepping_through_sigtramp)
|
stepping_through_sigtramp)
|
int pid;
|
int pid;
|
CORE_ADDR prev_pc;
|
CORE_ADDR prev_pc;
|
CORE_ADDR prev_func_start;
|
CORE_ADDR prev_func_start;
|
char *prev_func_name;
|
char *prev_func_name;
|
int trap_expected;
|
int trap_expected;
|
struct breakpoint *step_resume_breakpoint;
|
struct breakpoint *step_resume_breakpoint;
|
struct breakpoint *through_sigtramp_breakpoint;
|
struct breakpoint *through_sigtramp_breakpoint;
|
CORE_ADDR step_range_start;
|
CORE_ADDR step_range_start;
|
CORE_ADDR step_range_end;
|
CORE_ADDR step_range_end;
|
CORE_ADDR step_frame_address;
|
CORE_ADDR step_frame_address;
|
int handling_longjmp;
|
int handling_longjmp;
|
int another_trap;
|
int another_trap;
|
int stepping_through_solib_after_catch;
|
int stepping_through_solib_after_catch;
|
bpstat stepping_through_solib_catchpoints;
|
bpstat stepping_through_solib_catchpoints;
|
int stepping_through_sigtramp;
|
int stepping_through_sigtramp;
|
{
|
{
|
struct thread_info *tp;
|
struct thread_info *tp;
|
|
|
/* If we can't find the thread, then we're debugging a single-threaded
|
/* If we can't find the thread, then we're debugging a single-threaded
|
process. Nothing to do in that case. */
|
process. Nothing to do in that case. */
|
tp = find_thread_id (pid_to_thread_id (pid));
|
tp = find_thread_id (pid_to_thread_id (pid));
|
if (tp == NULL)
|
if (tp == NULL)
|
return;
|
return;
|
|
|
tp->prev_pc = prev_pc;
|
tp->prev_pc = prev_pc;
|
tp->prev_func_start = prev_func_start;
|
tp->prev_func_start = prev_func_start;
|
tp->prev_func_name = prev_func_name;
|
tp->prev_func_name = prev_func_name;
|
tp->step_resume_breakpoint = step_resume_breakpoint;
|
tp->step_resume_breakpoint = step_resume_breakpoint;
|
tp->step_range_start = step_range_start;
|
tp->step_range_start = step_range_start;
|
tp->step_range_end = step_range_end;
|
tp->step_range_end = step_range_end;
|
tp->step_frame_address = step_frame_address;
|
tp->step_frame_address = step_frame_address;
|
tp->through_sigtramp_breakpoint = through_sigtramp_breakpoint;
|
tp->through_sigtramp_breakpoint = through_sigtramp_breakpoint;
|
tp->handling_longjmp = handling_longjmp;
|
tp->handling_longjmp = handling_longjmp;
|
tp->trap_expected = trap_expected;
|
tp->trap_expected = trap_expected;
|
tp->another_trap = another_trap;
|
tp->another_trap = another_trap;
|
tp->stepping_through_solib_after_catch = stepping_through_solib_after_catch;
|
tp->stepping_through_solib_after_catch = stepping_through_solib_after_catch;
|
tp->stepping_through_solib_catchpoints = stepping_through_solib_catchpoints;
|
tp->stepping_through_solib_catchpoints = stepping_through_solib_catchpoints;
|
tp->stepping_through_sigtramp = stepping_through_sigtramp;
|
tp->stepping_through_sigtramp = stepping_through_sigtramp;
|
}
|
}
|
|
|
/* Return true if TP is an active thread. */
|
/* Return true if TP is an active thread. */
|
static int
|
static int
|
thread_alive (tp)
|
thread_alive (tp)
|
struct thread_info *tp;
|
struct thread_info *tp;
|
{
|
{
|
if (tp->pid == -1)
|
if (tp->pid == -1)
|
return 0;
|
return 0;
|
if (!target_thread_alive (tp->pid))
|
if (!target_thread_alive (tp->pid))
|
{
|
{
|
tp->pid = -1; /* Mark it as dead */
|
tp->pid = -1; /* Mark it as dead */
|
return 0;
|
return 0;
|
}
|
}
|
return 1;
|
return 1;
|
}
|
}
|
|
|
static void
|
static void
|
prune_threads ()
|
prune_threads ()
|
{
|
{
|
struct thread_info *tp, *next;
|
struct thread_info *tp, *next;
|
|
|
for (tp = thread_list; tp; tp = next)
|
for (tp = thread_list; tp; tp = next)
|
{
|
{
|
next = tp->next;
|
next = tp->next;
|
if (!thread_alive (tp))
|
if (!thread_alive (tp))
|
delete_thread (tp->pid);
|
delete_thread (tp->pid);
|
}
|
}
|
}
|
}
|
|
|
/* Print information about currently known threads
|
/* Print information about currently known threads
|
|
|
* Note: this has the drawback that it _really_ switches
|
* Note: this has the drawback that it _really_ switches
|
* threads, which frees the frame cache. A no-side
|
* threads, which frees the frame cache. A no-side
|
* effects info-threads command would be nicer.
|
* effects info-threads command would be nicer.
|
*/
|
*/
|
|
|
static void
|
static void
|
info_threads_command (arg, from_tty)
|
info_threads_command (arg, from_tty)
|
char *arg;
|
char *arg;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
struct thread_info *tp;
|
struct thread_info *tp;
|
int current_pid;
|
int current_pid;
|
struct frame_info *cur_frame;
|
struct frame_info *cur_frame;
|
int saved_frame_level = selected_frame_level;
|
int saved_frame_level = selected_frame_level;
|
int counter;
|
int counter;
|
char *extra_info;
|
char *extra_info;
|
|
|
/* Avoid coredumps which would happen if we tried to access a NULL
|
/* Avoid coredumps which would happen if we tried to access a NULL
|
selected_frame. */
|
selected_frame. */
|
if (!target_has_stack)
|
if (!target_has_stack)
|
error ("No stack.");
|
error ("No stack.");
|
|
|
prune_threads ();
|
prune_threads ();
|
target_find_new_threads ();
|
target_find_new_threads ();
|
current_pid = inferior_pid;
|
current_pid = inferior_pid;
|
for (tp = thread_list; tp; tp = tp->next)
|
for (tp = thread_list; tp; tp = tp->next)
|
{
|
{
|
if (tp->pid == current_pid)
|
if (tp->pid == current_pid)
|
printf_filtered ("* ");
|
printf_filtered ("* ");
|
else
|
else
|
printf_filtered (" ");
|
printf_filtered (" ");
|
|
|
#ifdef HPUXHPPA
|
#ifdef HPUXHPPA
|
printf_filtered ("%d %s", tp->num, target_tid_to_str (tp->pid));
|
printf_filtered ("%d %s", tp->num, target_tid_to_str (tp->pid));
|
#else
|
#else
|
printf_filtered ("%d %s", tp->num, target_pid_to_str (tp->pid));
|
printf_filtered ("%d %s", tp->num, target_pid_to_str (tp->pid));
|
#endif
|
#endif
|
|
|
extra_info = target_extra_thread_info (tp);
|
extra_info = target_extra_thread_info (tp);
|
if (extra_info)
|
if (extra_info)
|
printf_filtered (" (%s)", extra_info);
|
printf_filtered (" (%s)", extra_info);
|
puts_filtered (" ");
|
puts_filtered (" ");
|
|
|
switch_to_thread (tp->pid);
|
switch_to_thread (tp->pid);
|
if (selected_frame)
|
if (selected_frame)
|
print_only_stack_frame (selected_frame, -1, 0);
|
print_only_stack_frame (selected_frame, -1, 0);
|
else
|
else
|
printf_filtered ("[No stack.]\n");
|
printf_filtered ("[No stack.]\n");
|
}
|
}
|
|
|
switch_to_thread (current_pid);
|
switch_to_thread (current_pid);
|
|
|
/* Code below copied from "up_silently_base" in "stack.c".
|
/* Code below copied from "up_silently_base" in "stack.c".
|
* It restores the frame set by the user before the "info threads"
|
* It restores the frame set by the user before the "info threads"
|
* command. We have finished the info-threads display by switching
|
* command. We have finished the info-threads display by switching
|
* back to the current thread. That switch has put us at the top
|
* back to the current thread. That switch has put us at the top
|
* of the stack (leaf frame).
|
* of the stack (leaf frame).
|
*/
|
*/
|
counter = saved_frame_level;
|
counter = saved_frame_level;
|
cur_frame = find_relative_frame (selected_frame, &counter);
|
cur_frame = find_relative_frame (selected_frame, &counter);
|
if (counter != 0)
|
if (counter != 0)
|
{
|
{
|
/* Ooops, can't restore, tell user where we are. */
|
/* Ooops, can't restore, tell user where we are. */
|
warning ("Couldn't restore frame in current thread, at frame 0");
|
warning ("Couldn't restore frame in current thread, at frame 0");
|
print_stack_frame (selected_frame, -1, 0);
|
print_stack_frame (selected_frame, -1, 0);
|
}
|
}
|
else
|
else
|
{
|
{
|
select_frame (cur_frame, saved_frame_level);
|
select_frame (cur_frame, saved_frame_level);
|
}
|
}
|
|
|
/* re-show current frame. */
|
/* re-show current frame. */
|
show_stack_frame (cur_frame);
|
show_stack_frame (cur_frame);
|
}
|
}
|
|
|
/* Switch from one thread to another. */
|
/* Switch from one thread to another. */
|
|
|
static void
|
static void
|
switch_to_thread (pid)
|
switch_to_thread (pid)
|
int pid;
|
int pid;
|
{
|
{
|
if (pid == inferior_pid)
|
if (pid == inferior_pid)
|
return;
|
return;
|
|
|
inferior_pid = pid;
|
inferior_pid = pid;
|
flush_cached_frames ();
|
flush_cached_frames ();
|
registers_changed ();
|
registers_changed ();
|
stop_pc = read_pc ();
|
stop_pc = read_pc ();
|
select_frame (get_current_frame (), 0);
|
select_frame (get_current_frame (), 0);
|
}
|
}
|
|
|
static void
|
static void
|
restore_current_thread (pid)
|
restore_current_thread (pid)
|
int pid;
|
int pid;
|
{
|
{
|
if (pid != inferior_pid)
|
if (pid != inferior_pid)
|
{
|
{
|
switch_to_thread (pid);
|
switch_to_thread (pid);
|
print_stack_frame (get_current_frame (), 0, -1);
|
print_stack_frame (get_current_frame (), 0, -1);
|
}
|
}
|
}
|
}
|
|
|
/* Apply a GDB command to a list of threads. List syntax is a whitespace
|
/* Apply a GDB command to a list of threads. List syntax is a whitespace
|
seperated list of numbers, or ranges, or the keyword `all'. Ranges consist
|
seperated list of numbers, or ranges, or the keyword `all'. Ranges consist
|
of two numbers seperated by a hyphen. Examples:
|
of two numbers seperated by a hyphen. Examples:
|
|
|
thread apply 1 2 7 4 backtrace Apply backtrace cmd to threads 1,2,7,4
|
thread apply 1 2 7 4 backtrace Apply backtrace cmd to threads 1,2,7,4
|
thread apply 2-7 9 p foo(1) Apply p foo(1) cmd to threads 2->7 & 9
|
thread apply 2-7 9 p foo(1) Apply p foo(1) cmd to threads 2->7 & 9
|
thread apply all p x/i $pc Apply x/i $pc cmd to all threads
|
thread apply all p x/i $pc Apply x/i $pc cmd to all threads
|
*/
|
*/
|
|
|
static void
|
static void
|
thread_apply_all_command (cmd, from_tty)
|
thread_apply_all_command (cmd, from_tty)
|
char *cmd;
|
char *cmd;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
struct thread_info *tp;
|
struct thread_info *tp;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
|
|
if (cmd == NULL || *cmd == '\000')
|
if (cmd == NULL || *cmd == '\000')
|
error ("Please specify a command following the thread ID list");
|
error ("Please specify a command following the thread ID list");
|
|
|
old_chain = make_cleanup ((make_cleanup_func) restore_current_thread,
|
old_chain = make_cleanup ((make_cleanup_func) restore_current_thread,
|
(void *) inferior_pid);
|
(void *) inferior_pid);
|
|
|
for (tp = thread_list; tp; tp = tp->next)
|
for (tp = thread_list; tp; tp = tp->next)
|
if (thread_alive (tp))
|
if (thread_alive (tp))
|
{
|
{
|
switch_to_thread (tp->pid);
|
switch_to_thread (tp->pid);
|
#ifdef HPUXHPPA
|
#ifdef HPUXHPPA
|
printf_filtered ("\nThread %d (%s):\n",
|
printf_filtered ("\nThread %d (%s):\n",
|
tp->num,
|
tp->num,
|
target_tid_to_str (inferior_pid));
|
target_tid_to_str (inferior_pid));
|
#else
|
#else
|
printf_filtered ("\nThread %d (%s):\n", tp->num,
|
printf_filtered ("\nThread %d (%s):\n", tp->num,
|
target_pid_to_str (inferior_pid));
|
target_pid_to_str (inferior_pid));
|
#endif
|
#endif
|
execute_command (cmd, from_tty);
|
execute_command (cmd, from_tty);
|
}
|
}
|
}
|
}
|
|
|
static void
|
static void
|
thread_apply_command (tidlist, from_tty)
|
thread_apply_command (tidlist, from_tty)
|
char *tidlist;
|
char *tidlist;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
char *cmd;
|
char *cmd;
|
char *p;
|
char *p;
|
struct cleanup *old_chain;
|
struct cleanup *old_chain;
|
|
|
if (tidlist == NULL || *tidlist == '\000')
|
if (tidlist == NULL || *tidlist == '\000')
|
error ("Please specify a thread ID list");
|
error ("Please specify a thread ID list");
|
|
|
for (cmd = tidlist; *cmd != '\000' && !isalpha (*cmd); cmd++);
|
for (cmd = tidlist; *cmd != '\000' && !isalpha (*cmd); cmd++);
|
|
|
if (*cmd == '\000')
|
if (*cmd == '\000')
|
error ("Please specify a command following the thread ID list");
|
error ("Please specify a command following the thread ID list");
|
|
|
old_chain = make_cleanup ((make_cleanup_func) restore_current_thread,
|
old_chain = make_cleanup ((make_cleanup_func) restore_current_thread,
|
(void *) inferior_pid);
|
(void *) inferior_pid);
|
|
|
while (tidlist < cmd)
|
while (tidlist < cmd)
|
{
|
{
|
struct thread_info *tp;
|
struct thread_info *tp;
|
int start, end;
|
int start, end;
|
|
|
start = strtol (tidlist, &p, 10);
|
start = strtol (tidlist, &p, 10);
|
if (p == tidlist)
|
if (p == tidlist)
|
error ("Error parsing %s", tidlist);
|
error ("Error parsing %s", tidlist);
|
tidlist = p;
|
tidlist = p;
|
|
|
while (*tidlist == ' ' || *tidlist == '\t')
|
while (*tidlist == ' ' || *tidlist == '\t')
|
tidlist++;
|
tidlist++;
|
|
|
if (*tidlist == '-') /* Got a range of IDs? */
|
if (*tidlist == '-') /* Got a range of IDs? */
|
{
|
{
|
tidlist++; /* Skip the - */
|
tidlist++; /* Skip the - */
|
end = strtol (tidlist, &p, 10);
|
end = strtol (tidlist, &p, 10);
|
if (p == tidlist)
|
if (p == tidlist)
|
error ("Error parsing %s", tidlist);
|
error ("Error parsing %s", tidlist);
|
tidlist = p;
|
tidlist = p;
|
|
|
while (*tidlist == ' ' || *tidlist == '\t')
|
while (*tidlist == ' ' || *tidlist == '\t')
|
tidlist++;
|
tidlist++;
|
}
|
}
|
else
|
else
|
end = start;
|
end = start;
|
|
|
for (; start <= end; start++)
|
for (; start <= end; start++)
|
{
|
{
|
tp = find_thread_id (start);
|
tp = find_thread_id (start);
|
|
|
if (!tp)
|
if (!tp)
|
warning ("Unknown thread %d.", start);
|
warning ("Unknown thread %d.", start);
|
else if (!thread_alive (tp))
|
else if (!thread_alive (tp))
|
warning ("Thread %d has terminated.", start);
|
warning ("Thread %d has terminated.", start);
|
else
|
else
|
{
|
{
|
switch_to_thread (tp->pid);
|
switch_to_thread (tp->pid);
|
#ifdef HPUXHPPA
|
#ifdef HPUXHPPA
|
printf_filtered ("\nThread %d (%s):\n", tp->num,
|
printf_filtered ("\nThread %d (%s):\n", tp->num,
|
target_tid_to_str (inferior_pid));
|
target_tid_to_str (inferior_pid));
|
#else
|
#else
|
printf_filtered ("\nThread %d (%s):\n", tp->num,
|
printf_filtered ("\nThread %d (%s):\n", tp->num,
|
target_pid_to_str (inferior_pid));
|
target_pid_to_str (inferior_pid));
|
#endif
|
#endif
|
execute_command (cmd, from_tty);
|
execute_command (cmd, from_tty);
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Switch to the specified thread. Will dispatch off to thread_apply_command
|
/* Switch to the specified thread. Will dispatch off to thread_apply_command
|
if prefix of arg is `apply'. */
|
if prefix of arg is `apply'. */
|
|
|
static void
|
static void
|
thread_command (tidstr, from_tty)
|
thread_command (tidstr, from_tty)
|
char *tidstr;
|
char *tidstr;
|
int from_tty;
|
int from_tty;
|
{
|
{
|
if (!tidstr)
|
if (!tidstr)
|
{
|
{
|
/* Don't generate an error, just say which thread is current. */
|
/* Don't generate an error, just say which thread is current. */
|
if (target_has_stack)
|
if (target_has_stack)
|
printf_filtered ("[Current thread is %d (%s)]\n",
|
printf_filtered ("[Current thread is %d (%s)]\n",
|
pid_to_thread_id (inferior_pid),
|
pid_to_thread_id (inferior_pid),
|
#if defined(HPUXHPPA)
|
#if defined(HPUXHPPA)
|
target_tid_to_str (inferior_pid)
|
target_tid_to_str (inferior_pid)
|
#else
|
#else
|
target_pid_to_str (inferior_pid)
|
target_pid_to_str (inferior_pid)
|
#endif
|
#endif
|
);
|
);
|
else
|
else
|
error ("No stack.");
|
error ("No stack.");
|
return;
|
return;
|
}
|
}
|
|
|
gdb_thread_select (tidstr);
|
gdb_thread_select (tidstr);
|
}
|
}
|
|
|
static int
|
static int
|
do_captured_thread_select (void *tidstr)
|
do_captured_thread_select (void *tidstr)
|
{
|
{
|
int num;
|
int num;
|
struct thread_info *tp;
|
struct thread_info *tp;
|
|
|
num = atoi ((char *)tidstr);
|
num = atoi ((char *)tidstr);
|
|
|
tp = find_thread_id (num);
|
tp = find_thread_id (num);
|
|
|
#ifdef UI_OUT
|
#ifdef UI_OUT
|
if (!tp)
|
if (!tp)
|
error ("Thread ID %d not known.", num);
|
error ("Thread ID %d not known.", num);
|
#else
|
#else
|
if (!tp)
|
if (!tp)
|
error ("Thread ID %d not known. Use the \"info threads\" command to\n\
|
error ("Thread ID %d not known. Use the \"info threads\" command to\n\
|
see the IDs of currently known threads.", num);
|
see the IDs of currently known threads.", num);
|
#endif
|
#endif
|
|
|
if (!thread_alive (tp))
|
if (!thread_alive (tp))
|
error ("Thread ID %d has terminated.\n", num);
|
error ("Thread ID %d has terminated.\n", num);
|
|
|
switch_to_thread (tp->pid);
|
switch_to_thread (tp->pid);
|
|
|
#ifdef UI_OUT
|
#ifdef UI_OUT
|
ui_out_text (uiout, "[Switching to thread ");
|
ui_out_text (uiout, "[Switching to thread ");
|
ui_out_field_int (uiout, "new-thread-id", pid_to_thread_id (inferior_pid));
|
ui_out_field_int (uiout, "new-thread-id", pid_to_thread_id (inferior_pid));
|
ui_out_text (uiout, " (");
|
ui_out_text (uiout, " (");
|
#if defined(HPUXHPPA)
|
#if defined(HPUXHPPA)
|
ui_out_text (uiout, target_tid_to_str (inferior_pid));
|
ui_out_text (uiout, target_tid_to_str (inferior_pid));
|
#else
|
#else
|
ui_out_text (uiout, target_pid_to_str (inferior_pid));
|
ui_out_text (uiout, target_pid_to_str (inferior_pid));
|
#endif
|
#endif
|
ui_out_text (uiout, ")]");
|
ui_out_text (uiout, ")]");
|
#else /* UI_OUT */
|
#else /* UI_OUT */
|
printf_filtered ("[Switching to thread %d (%s)]\n",
|
printf_filtered ("[Switching to thread %d (%s)]\n",
|
pid_to_thread_id (inferior_pid),
|
pid_to_thread_id (inferior_pid),
|
#if defined(HPUXHPPA)
|
#if defined(HPUXHPPA)
|
target_tid_to_str (inferior_pid)
|
target_tid_to_str (inferior_pid)
|
#else
|
#else
|
target_pid_to_str (inferior_pid)
|
target_pid_to_str (inferior_pid)
|
#endif
|
#endif
|
);
|
);
|
#endif /* UI_OUT */
|
#endif /* UI_OUT */
|
|
|
print_stack_frame (selected_frame, selected_frame_level, 1);
|
print_stack_frame (selected_frame, selected_frame_level, 1);
|
return GDB_RC_OK;
|
return GDB_RC_OK;
|
}
|
}
|
|
|
enum gdb_rc
|
enum gdb_rc
|
gdb_thread_select (char *tidstr)
|
gdb_thread_select (char *tidstr)
|
{
|
{
|
return catch_errors (do_captured_thread_select, tidstr,
|
return catch_errors (do_captured_thread_select, tidstr,
|
NULL, RETURN_MASK_ALL);
|
NULL, RETURN_MASK_ALL);
|
}
|
}
|
|
|
/* Commands with a prefix of `thread'. */
|
/* Commands with a prefix of `thread'. */
|
struct cmd_list_element *thread_cmd_list = NULL;
|
struct cmd_list_element *thread_cmd_list = NULL;
|
|
|
void
|
void
|
_initialize_thread ()
|
_initialize_thread ()
|
{
|
{
|
static struct cmd_list_element *thread_apply_list = NULL;
|
static struct cmd_list_element *thread_apply_list = NULL;
|
|
|
add_info ("threads", info_threads_command,
|
add_info ("threads", info_threads_command,
|
"IDs of currently known threads.");
|
"IDs of currently known threads.");
|
|
|
add_prefix_cmd ("thread", class_run, thread_command,
|
add_prefix_cmd ("thread", class_run, thread_command,
|
"Use this command to switch between threads.\n\
|
"Use this command to switch between threads.\n\
|
The new thread ID must be currently known.", &thread_cmd_list, "thread ", 1,
|
The new thread ID must be currently known.", &thread_cmd_list, "thread ", 1,
|
&cmdlist);
|
&cmdlist);
|
|
|
add_prefix_cmd ("apply", class_run, thread_apply_command,
|
add_prefix_cmd ("apply", class_run, thread_apply_command,
|
"Apply a command to a list of threads.",
|
"Apply a command to a list of threads.",
|
&thread_apply_list, "apply ", 1, &thread_cmd_list);
|
&thread_apply_list, "apply ", 1, &thread_cmd_list);
|
|
|
add_cmd ("all", class_run, thread_apply_all_command,
|
add_cmd ("all", class_run, thread_apply_all_command,
|
"Apply a command to all threads.",
|
"Apply a command to all threads.",
|
&thread_apply_list);
|
&thread_apply_list);
|
|
|
if (!xdb_commands)
|
if (!xdb_commands)
|
add_com_alias ("t", "thread", class_run, 1);
|
add_com_alias ("t", "thread", class_run, 1);
|
}
|
}
|
|
|
