/* Multi-process/thread control for GDB, the GNU debugger.
- Copyright (C) 1986, 1987, 1988, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
+ Copyright (C) 1986-2017 Free Software Foundation, Inc.
Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "symtab.h"
#include "value.h"
#include "target.h"
#include "gdbthread.h"
-#include "exceptions.h"
#include "command.h"
#include "gdbcmd.h"
#include "regcache.h"
-#include "gdb.h"
-#include "gdb_string.h"
+#include "btrace.h"
#include <ctype.h>
#include <sys/types.h>
#include <signal.h>
#include "ui-out.h"
+#include "observer.h"
+#include "annotate.h"
+#include "cli/cli-decode.h"
+#include "gdb_regex.h"
+#include "cli/cli-utils.h"
+#include "thread-fsm.h"
+#include "tid-parse.h"
+#include <algorithm>
+#include "common/gdb_optional.h"
-/* Definition of struct thread_info exported to gdbthread.h */
+/* Definition of struct thread_info exported to gdbthread.h. */
-/* Prototypes for exported functions. */
+/* Prototypes for local functions. */
-void _initialize_thread (void);
-
-/* Prototypes for local functions. */
-
-static struct thread_info *thread_list = NULL;
+struct thread_info *thread_list = NULL;
static int highest_thread_num;
-static struct thread_info *find_thread_id (int num);
+/* True if any thread is, or may be executing. We need to track this
+ separately because until we fully sync the thread list, we won't
+ know whether the target is fully stopped, even if we see stop
+ events for all known threads, because any of those threads may have
+ spawned new threads we haven't heard of yet. */
+static int threads_executing;
-static void thread_command (char *tidstr, int from_tty);
static void thread_apply_all_command (char *, int);
static int thread_alive (struct thread_info *);
static void info_threads_command (char *, int);
-static void thread_apply_command (char *, int);
-static void restore_current_thread (ptid_t);
-static void switch_to_thread (ptid_t ptid);
-static void prune_threads (void);
-static struct cleanup *make_cleanup_restore_current_thread (ptid_t,
- struct frame_id);
+
+/* RAII type used to increase / decrease the refcount of each thread
+ in a given list of threads. */
+
+class scoped_inc_dec_ref
+{
+public:
+ explicit scoped_inc_dec_ref (const std::vector<thread_info *> &thrds)
+ : m_thrds (thrds)
+ {
+ for (thread_info *thr : m_thrds)
+ thr->incref ();
+ }
+
+ ~scoped_inc_dec_ref ()
+ {
+ for (thread_info *thr : m_thrds)
+ thr->decref ();
+ }
+
+private:
+ const std::vector<thread_info *> &m_thrds;
+};
+
+
+struct thread_info*
+inferior_thread (void)
+{
+ struct thread_info *tp = find_thread_ptid (inferior_ptid);
+ gdb_assert (tp);
+ return tp;
+}
+
+/* Delete the breakpoint pointed at by BP_P, if there's one. */
+
+static void
+delete_thread_breakpoint (struct breakpoint **bp_p)
+{
+ if (*bp_p != NULL)
+ {
+ delete_breakpoint (*bp_p);
+ *bp_p = NULL;
+ }
+}
void
-delete_step_resume_breakpoint (void *arg)
+delete_step_resume_breakpoint (struct thread_info *tp)
{
- struct breakpoint **breakpointp = (struct breakpoint **) arg;
- struct thread_info *tp;
+ if (tp != NULL)
+ delete_thread_breakpoint (&tp->control.step_resume_breakpoint);
+}
+
+void
+delete_exception_resume_breakpoint (struct thread_info *tp)
+{
+ if (tp != NULL)
+ delete_thread_breakpoint (&tp->control.exception_resume_breakpoint);
+}
- if (*breakpointp != NULL)
+/* See gdbthread.h. */
+
+void
+delete_single_step_breakpoints (struct thread_info *tp)
+{
+ if (tp != NULL)
+ delete_thread_breakpoint (&tp->control.single_step_breakpoints);
+}
+
+/* Delete the breakpoint pointed at by BP_P at the next stop, if
+ there's one. */
+
+static void
+delete_at_next_stop (struct breakpoint **bp)
+{
+ if (*bp != NULL)
{
- delete_breakpoint (*breakpointp);
- for (tp = thread_list; tp; tp = tp->next)
- if (tp->step_resume_breakpoint == *breakpointp)
- tp->step_resume_breakpoint = NULL;
+ (*bp)->disposition = disp_del_at_next_stop;
+ *bp = NULL;
+ }
+}
+
+/* See gdbthread.h. */
+
+int
+thread_has_single_step_breakpoints_set (struct thread_info *tp)
+{
+ return tp->control.single_step_breakpoints != NULL;
+}
- *breakpointp = NULL;
+/* See gdbthread.h. */
+
+int
+thread_has_single_step_breakpoint_here (struct thread_info *tp,
+ struct address_space *aspace,
+ CORE_ADDR addr)
+{
+ struct breakpoint *ss_bps = tp->control.single_step_breakpoints;
+
+ return (ss_bps != NULL
+ && breakpoint_has_location_inserted_here (ss_bps, aspace, addr));
+}
+
+/* See gdbthread.h. */
+
+void
+thread_cancel_execution_command (struct thread_info *thr)
+{
+ if (thr->thread_fsm != NULL)
+ {
+ thread_fsm_clean_up (thr->thread_fsm, thr);
+ thread_fsm_delete (thr->thread_fsm);
+ thr->thread_fsm = NULL;
}
}
static void
-free_thread (struct thread_info *tp)
+clear_thread_inferior_resources (struct thread_info *tp)
{
/* NOTE: this will take care of any left-over step_resume breakpoints,
- but not any user-specified thread-specific breakpoints. */
- if (tp->step_resume_breakpoint)
- delete_breakpoint (tp->step_resume_breakpoint);
+ but not any user-specified thread-specific breakpoints. We can not
+ delete the breakpoint straight-off, because the inferior might not
+ be stopped at the moment. */
+ delete_at_next_stop (&tp->control.step_resume_breakpoint);
+ delete_at_next_stop (&tp->control.exception_resume_breakpoint);
+ delete_at_next_stop (&tp->control.single_step_breakpoints);
+
+ delete_longjmp_breakpoint_at_next_stop (tp->global_num);
+
+ bpstat_clear (&tp->control.stop_bpstat);
+
+ btrace_teardown (tp);
+
+ thread_cancel_execution_command (tp);
+}
+
+/* Set the TP's state as exited. */
- /* FIXME: do I ever need to call the back-end to give it a
- chance at this private data before deleting the thread? */
- if (tp->private)
- xfree (tp->private);
+static void
+set_thread_exited (thread_info *tp, int silent)
+{
+ /* Dead threads don't need to step-over. Remove from queue. */
+ if (tp->step_over_next != NULL)
+ thread_step_over_chain_remove (tp);
+
+ if (tp->state != THREAD_EXITED)
+ {
+ observer_notify_thread_exit (tp, silent);
- xfree (tp);
+ /* Tag it as exited. */
+ tp->state = THREAD_EXITED;
+
+ /* Clear breakpoints, etc. associated with this thread. */
+ clear_thread_inferior_resources (tp);
+ }
}
void
struct thread_info *tp, *tpnext;
highest_thread_num = 0;
+
if (!thread_list)
return;
for (tp = thread_list; tp; tp = tpnext)
{
tpnext = tp->next;
- free_thread (tp);
+ if (tp->deletable ())
+ delete tp;
+ else
+ set_thread_exited (tp, 1);
}
thread_list = NULL;
+ threads_executing = 0;
}
-/* add_thread now returns a pointer to the new thread_info,
- so that back_ends can initialize their private data. */
+/* Allocate a new thread of inferior INF with target id PTID and add
+ it to the thread list. */
+
+static struct thread_info *
+new_thread (struct inferior *inf, ptid_t ptid)
+{
+ thread_info *tp = new thread_info (inf, ptid);
+
+ if (thread_list == NULL)
+ thread_list = tp;
+ else
+ {
+ struct thread_info *last;
+
+ for (last = thread_list; last->next != NULL; last = last->next)
+ ;
+ last->next = tp;
+ }
+
+ return tp;
+}
struct thread_info *
-add_thread (ptid_t ptid)
+add_thread_silent (ptid_t ptid)
{
struct thread_info *tp;
+ struct inferior *inf = find_inferior_ptid (ptid);
+ gdb_assert (inf != NULL);
+
+ tp = find_thread_ptid (ptid);
+ if (tp)
+ /* Found an old thread with the same id. It has to be dead,
+ otherwise we wouldn't be adding a new thread with the same id.
+ The OS is reusing this id --- delete it, and recreate a new
+ one. */
+ {
+ /* In addition to deleting the thread, if this is the current
+ thread, then we need to take care that delete_thread doesn't
+ really delete the thread if it is inferior_ptid. Create a
+ new template thread in the list with an invalid ptid, switch
+ to it, delete the original thread, reset the new thread's
+ ptid, and switch to it. */
+
+ if (inferior_ptid == ptid)
+ {
+ tp = new_thread (inf, null_ptid);
+
+ /* Make switch_to_thread not read from the thread. */
+ tp->state = THREAD_EXITED;
+ switch_to_thread (null_ptid);
+
+ /* Now we can delete it. */
+ delete_thread (ptid);
+
+ /* Now reset its ptid, and reswitch inferior_ptid to it. */
+ tp->ptid = ptid;
+ tp->state = THREAD_STOPPED;
+ switch_to_thread (ptid);
+
+ observer_notify_new_thread (tp);
+
+ /* All done. */
+ return tp;
+ }
+ else
+ /* Just go ahead and delete it. */
+ delete_thread (ptid);
+ }
+
+ tp = new_thread (inf, ptid);
+ observer_notify_new_thread (tp);
- tp = (struct thread_info *) xmalloc (sizeof (*tp));
- memset (tp, 0, sizeof (*tp));
- tp->ptid = ptid;
- tp->num = ++highest_thread_num;
- tp->next = thread_list;
- thread_list = tp;
return tp;
}
+struct thread_info *
+add_thread_with_info (ptid_t ptid, struct private_thread_info *priv)
+{
+ struct thread_info *result = add_thread_silent (ptid);
+
+ result->priv = priv;
+
+ if (print_thread_events)
+ printf_unfiltered (_("[New %s]\n"), target_pid_to_str (ptid));
+
+ annotate_new_thread ();
+ return result;
+}
+
+struct thread_info *
+add_thread (ptid_t ptid)
+{
+ return add_thread_with_info (ptid, NULL);
+}
+
+thread_info::thread_info (struct inferior *inf_, ptid_t ptid_)
+ : ptid (ptid_), inf (inf_)
+{
+ gdb_assert (inf_ != NULL);
+
+ this->global_num = ++highest_thread_num;
+ this->per_inf_num = ++inf_->highest_thread_num;
+
+ /* Nothing to follow yet. */
+ memset (&this->pending_follow, 0, sizeof (this->pending_follow));
+ this->pending_follow.kind = TARGET_WAITKIND_SPURIOUS;
+ this->suspend.waitstatus.kind = TARGET_WAITKIND_IGNORE;
+}
+
+thread_info::~thread_info ()
+{
+ if (this->priv)
+ {
+ if (this->private_dtor)
+ this->private_dtor (this->priv);
+ else
+ xfree (this->priv);
+ }
+
+ xfree (this->name);
+}
+
+/* Add TP to the end of the step-over chain LIST_P. */
+
+static void
+step_over_chain_enqueue (struct thread_info **list_p, struct thread_info *tp)
+{
+ gdb_assert (tp->step_over_next == NULL);
+ gdb_assert (tp->step_over_prev == NULL);
+
+ if (*list_p == NULL)
+ {
+ *list_p = tp;
+ tp->step_over_prev = tp->step_over_next = tp;
+ }
+ else
+ {
+ struct thread_info *head = *list_p;
+ struct thread_info *tail = head->step_over_prev;
+
+ tp->step_over_prev = tail;
+ tp->step_over_next = head;
+ head->step_over_prev = tp;
+ tail->step_over_next = tp;
+ }
+}
+
+/* Remove TP from step-over chain LIST_P. */
+
+static void
+step_over_chain_remove (struct thread_info **list_p, struct thread_info *tp)
+{
+ gdb_assert (tp->step_over_next != NULL);
+ gdb_assert (tp->step_over_prev != NULL);
+
+ if (*list_p == tp)
+ {
+ if (tp == tp->step_over_next)
+ *list_p = NULL;
+ else
+ *list_p = tp->step_over_next;
+ }
+
+ tp->step_over_prev->step_over_next = tp->step_over_next;
+ tp->step_over_next->step_over_prev = tp->step_over_prev;
+ tp->step_over_prev = tp->step_over_next = NULL;
+}
+
+/* See gdbthread.h. */
+
+struct thread_info *
+thread_step_over_chain_next (struct thread_info *tp)
+{
+ struct thread_info *next = tp->step_over_next;
+
+ return (next == step_over_queue_head ? NULL : next);
+}
+
+/* See gdbthread.h. */
+
+int
+thread_is_in_step_over_chain (struct thread_info *tp)
+{
+ return (tp->step_over_next != NULL);
+}
+
+/* See gdbthread.h. */
+
void
-delete_thread (ptid_t ptid)
+thread_step_over_chain_enqueue (struct thread_info *tp)
+{
+ step_over_chain_enqueue (&step_over_queue_head, tp);
+}
+
+/* See gdbthread.h. */
+
+void
+thread_step_over_chain_remove (struct thread_info *tp)
+{
+ step_over_chain_remove (&step_over_queue_head, tp);
+}
+
+/* Delete thread PTID. If SILENT, don't notify the observer of this
+ exit. */
+static void
+delete_thread_1 (ptid_t ptid, int silent)
{
struct thread_info *tp, *tpprev;
tpprev = NULL;
for (tp = thread_list; tp; tpprev = tp, tp = tp->next)
- if (ptid_equal (tp->ptid, ptid))
+ if (tp->ptid == ptid)
break;
if (!tp)
return;
+ set_thread_exited (tp, silent);
+
+ if (!tp->deletable ())
+ {
+ /* Will be really deleted some other time. */
+ return;
+ }
+
if (tpprev)
tpprev->next = tp->next;
else
thread_list = tp->next;
- free_thread (tp);
+ delete tp;
+}
+
+/* Delete thread PTID and notify of thread exit. If this is
+ inferior_ptid, don't actually delete it, but tag it as exited and
+ do the notification. If PTID is the user selected thread, clear
+ it. */
+void
+delete_thread (ptid_t ptid)
+{
+ delete_thread_1 (ptid, 0 /* not silent */);
+}
+
+void
+delete_thread_silent (ptid_t ptid)
+{
+ delete_thread_1 (ptid, 1 /* silent */);
+}
+
+struct thread_info *
+find_thread_global_id (int global_id)
+{
+ struct thread_info *tp;
+
+ for (tp = thread_list; tp; tp = tp->next)
+ if (tp->global_num == global_id)
+ return tp;
+
+ return NULL;
}
static struct thread_info *
-find_thread_id (int num)
+find_thread_id (struct inferior *inf, int thr_num)
{
struct thread_info *tp;
for (tp = thread_list; tp; tp = tp->next)
- if (tp->num == num)
+ if (tp->inf == inf && tp->per_inf_num == thr_num)
return tp;
return NULL;
}
/* Find a thread_info by matching PTID. */
+
struct thread_info *
-find_thread_pid (ptid_t ptid)
+find_thread_ptid (ptid_t ptid)
{
struct thread_info *tp;
for (tp = thread_list; tp; tp = tp->next)
- if (ptid_equal (tp->ptid, ptid))
+ if (tp->ptid == ptid)
return tp;
return NULL;
}
+/* See gdbthread.h. */
+
+struct thread_info *
+find_thread_by_handle (struct value *thread_handle, struct inferior *inf)
+{
+ return target_thread_handle_to_thread_info
+ (value_contents_all (thread_handle),
+ TYPE_LENGTH (value_type (thread_handle)),
+ inf);
+}
+
/*
* Thread iterator function.
*
* Calls a callback function once for each thread, so long as
* the callback function returns false. If the callback function
* returns true, the iteration will end and the current thread
- * will be returned. This can be useful for implementing a
+ * will be returned. This can be useful for implementing a
* search for a thread with arbitrary attributes, or for applying
* some operation to every thread.
*
- * FIXME: some of the existing functionality, such as
+ * FIXME: some of the existing functionality, such as
* "Thread apply all", might be rewritten using this functionality.
*/
iterate_over_threads (int (*callback) (struct thread_info *, void *),
void *data)
{
+ struct thread_info *tp, *next;
+
+ for (tp = thread_list; tp; tp = next)
+ {
+ next = tp->next;
+ if ((*callback) (tp, data))
+ return tp;
+ }
+
+ return NULL;
+}
+
+int
+thread_count (void)
+{
+ int result = 0;
struct thread_info *tp;
for (tp = thread_list; tp; tp = tp->next)
- if ((*callback) (tp, data))
- return tp;
+ ++result;
- return NULL;
+ return result;
+}
+
+/* Return the number of non-exited threads in the thread list. */
+
+static int
+live_threads_count (void)
+{
+ int result = 0;
+ struct thread_info *tp;
+
+ ALL_NON_EXITED_THREADS (tp)
+ ++result;
+
+ return result;
}
int
-valid_thread_id (int num)
+valid_global_thread_id (int global_id)
{
struct thread_info *tp;
for (tp = thread_list; tp; tp = tp->next)
- if (tp->num == num)
+ if (tp->global_num == global_id)
return 1;
return 0;
}
int
-pid_to_thread_id (ptid_t ptid)
+ptid_to_global_thread_id (ptid_t ptid)
{
struct thread_info *tp;
for (tp = thread_list; tp; tp = tp->next)
- if (ptid_equal (tp->ptid, ptid))
- return tp->num;
+ if (tp->ptid == ptid)
+ return tp->global_num;
return 0;
}
ptid_t
-thread_id_to_pid (int num)
+global_thread_id_to_ptid (int global_id)
{
- struct thread_info *thread = find_thread_id (num);
+ struct thread_info *thread = find_thread_global_id (global_id);
+
if (thread)
return thread->ptid;
else
- return pid_to_ptid (-1);
+ return minus_one_ptid;
}
int
struct thread_info *tp;
for (tp = thread_list; tp; tp = tp->next)
- if (ptid_equal (tp->ptid, ptid))
+ if (tp->ptid == ptid)
return 1;
- return 0; /* Never heard of 'im */
+ return 0; /* Never heard of 'im. */
}
-/* Print a list of thread ids currently known, and the total number of
- threads. To be used from within catch_errors. */
-static int
-do_captured_list_thread_ids (struct ui_out *uiout, void *arg)
-{
- struct thread_info *tp;
- int num = 0;
- struct cleanup *cleanup_chain;
-
- prune_threads ();
- target_find_new_threads ();
+/* Finds the first thread of the inferior given by PID. If PID is -1,
+ return the first thread in the list. */
- cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "thread-ids");
+struct thread_info *
+first_thread_of_process (int pid)
+{
+ struct thread_info *tp, *ret = NULL;
for (tp = thread_list; tp; tp = tp->next)
- {
- num++;
- ui_out_field_int (uiout, "thread-id", tp->num);
- }
+ if (pid == -1 || ptid_get_pid (tp->ptid) == pid)
+ if (ret == NULL || tp->global_num < ret->global_num)
+ ret = tp;
- do_cleanups (cleanup_chain);
- ui_out_field_int (uiout, "number-of-threads", num);
- return GDB_RC_OK;
+ return ret;
}
-/* Official gdblib interface function to get a list of thread ids and
- the total number. */
-enum gdb_rc
-gdb_list_thread_ids (struct ui_out *uiout, char **error_message)
+struct thread_info *
+any_thread_of_process (int pid)
{
- if (catch_exceptions_with_msg (uiout, do_captured_list_thread_ids, NULL,
- error_message, RETURN_MASK_ALL) < 0)
- return GDB_RC_FAIL;
- return GDB_RC_OK;
-}
+ struct thread_info *tp;
-/* Load infrun state for the thread PID. */
+ gdb_assert (pid != 0);
-void
-load_infrun_state (ptid_t ptid,
- CORE_ADDR *prev_pc,
- int *trap_expected,
- struct breakpoint **step_resume_breakpoint,
- CORE_ADDR *step_range_start,
- CORE_ADDR *step_range_end,
- struct frame_id *step_frame_id,
- int *handling_longjmp,
- int *another_trap,
- int *stepping_through_solib_after_catch,
- bpstat *stepping_through_solib_catchpoints,
- int *current_line,
- struct symtab **current_symtab)
-{
- struct thread_info *tp;
+ /* Prefer the current thread. */
+ if (ptid_get_pid (inferior_ptid) == pid)
+ return inferior_thread ();
- /* If we can't find the thread, then we're debugging a single threaded
- process. No need to do anything in that case. */
- tp = find_thread_id (pid_to_thread_id (ptid));
- if (tp == NULL)
- return;
+ ALL_NON_EXITED_THREADS (tp)
+ if (ptid_get_pid (tp->ptid) == pid)
+ return tp;
- *prev_pc = tp->prev_pc;
- *trap_expected = tp->trap_expected;
- *step_resume_breakpoint = tp->step_resume_breakpoint;
- *step_range_start = tp->step_range_start;
- *step_range_end = tp->step_range_end;
- *step_frame_id = tp->step_frame_id;
- *handling_longjmp = tp->handling_longjmp;
- *another_trap = tp->another_trap;
- *stepping_through_solib_after_catch =
- tp->stepping_through_solib_after_catch;
- *stepping_through_solib_catchpoints =
- tp->stepping_through_solib_catchpoints;
- *current_line = tp->current_line;
- *current_symtab = tp->current_symtab;
+ return NULL;
}
-/* Save infrun state for the thread PID. */
-
-void
-save_infrun_state (ptid_t ptid,
- CORE_ADDR prev_pc,
- int trap_expected,
- struct breakpoint *step_resume_breakpoint,
- CORE_ADDR step_range_start,
- CORE_ADDR step_range_end,
- const struct frame_id *step_frame_id,
- int handling_longjmp,
- int another_trap,
- int stepping_through_solib_after_catch,
- bpstat stepping_through_solib_catchpoints,
- int current_line,
- struct symtab *current_symtab)
+struct thread_info *
+any_live_thread_of_process (int pid)
{
+ struct thread_info *curr_tp = NULL;
struct thread_info *tp;
+ struct thread_info *tp_executing = NULL;
- /* If we can't find the thread, then we're debugging a single-threaded
- process. Nothing to do in that case. */
- tp = find_thread_id (pid_to_thread_id (ptid));
- if (tp == NULL)
- return;
+ gdb_assert (pid != 0);
+
+ /* Prefer the current thread if it's not executing. */
+ if (ptid_get_pid (inferior_ptid) == pid)
+ {
+ /* If the current thread is dead, forget it. If it's not
+ executing, use it. Otherwise, still choose it (below), but
+ only if no other non-executing thread is found. */
+ curr_tp = inferior_thread ();
+ if (curr_tp->state == THREAD_EXITED)
+ curr_tp = NULL;
+ else if (!curr_tp->executing)
+ return curr_tp;
+ }
+
+ ALL_NON_EXITED_THREADS (tp)
+ if (ptid_get_pid (tp->ptid) == pid)
+ {
+ if (!tp->executing)
+ return tp;
+
+ tp_executing = tp;
+ }
+
+ /* If both the current thread and all live threads are executing,
+ prefer the current thread. */
+ if (curr_tp != NULL)
+ return curr_tp;
+
+ /* Otherwise, just return an executing thread, if any. */
+ return tp_executing;
+}
- tp->prev_pc = prev_pc;
- tp->trap_expected = trap_expected;
- tp->step_resume_breakpoint = step_resume_breakpoint;
- tp->step_range_start = step_range_start;
- tp->step_range_end = step_range_end;
- tp->step_frame_id = (*step_frame_id);
- tp->handling_longjmp = handling_longjmp;
- tp->another_trap = another_trap;
- tp->stepping_through_solib_after_catch = stepping_through_solib_after_catch;
- tp->stepping_through_solib_catchpoints = stepping_through_solib_catchpoints;
- tp->current_line = current_line;
- tp->current_symtab = current_symtab;
-}
-
-/* Return true if TP is an active thread. */
+/* Return true if TP is an active thread. */
static int
thread_alive (struct thread_info *tp)
{
- if (PIDGET (tp->ptid) == -1)
+ if (tp->state == THREAD_EXITED)
return 0;
if (!target_thread_alive (tp->ptid))
- {
- tp->ptid = pid_to_ptid (-1); /* Mark it as dead */
- return 0;
- }
+ return 0;
return 1;
}
-static void
+/* See gdbthreads.h. */
+
+void
prune_threads (void)
{
- struct thread_info *tp, *next;
+ struct thread_info *tp, *tmp;
- for (tp = thread_list; tp; tp = next)
+ ALL_THREADS_SAFE (tp, tmp)
{
- next = tp->next;
if (!thread_alive (tp))
delete_thread (tp->ptid);
}
}
-/* Print information about currently known threads
-
- * Note: this has the drawback that it _really_ switches
- * threads, which frees the frame cache. A no-side
- * effects info-threads command would be nicer.
- */
+/* See gdbthreads.h. */
-static void
-info_threads_command (char *arg, int from_tty)
+void
+delete_exited_threads (void)
{
- struct thread_info *tp;
- ptid_t current_ptid;
- struct frame_info *cur_frame;
- struct cleanup *old_chain;
- struct frame_id saved_frame_id;
- char *extra_info;
+ struct thread_info *tp, *tmp;
- /* Backup current thread and selected frame. */
- saved_frame_id = get_frame_id (get_selected_frame (NULL));
- old_chain = make_cleanup_restore_current_thread (inferior_ptid, saved_frame_id);
+ ALL_THREADS_SAFE (tp, tmp)
+ {
+ if (tp->state == THREAD_EXITED)
+ delete_thread (tp->ptid);
+ }
+}
- prune_threads ();
- target_find_new_threads ();
- current_ptid = inferior_ptid;
- for (tp = thread_list; tp; tp = tp->next)
+/* Disable storing stack temporaries for the thread whose id is
+ stored in DATA. */
+
+static void
+disable_thread_stack_temporaries (void *data)
+{
+ ptid_t *pd = (ptid_t *) data;
+ struct thread_info *tp = find_thread_ptid (*pd);
+
+ if (tp != NULL)
+ {
+ tp->stack_temporaries_enabled = 0;
+ VEC_free (value_ptr, tp->stack_temporaries);
+ }
+
+ xfree (pd);
+}
+
+/* Enable storing stack temporaries for thread with id PTID and return a
+ cleanup which can disable and clear the stack temporaries. */
+
+struct cleanup *
+enable_thread_stack_temporaries (ptid_t ptid)
+{
+ struct thread_info *tp = find_thread_ptid (ptid);
+ ptid_t *data;
+ struct cleanup *c;
+
+ gdb_assert (tp != NULL);
+
+ tp->stack_temporaries_enabled = 1;
+ tp->stack_temporaries = NULL;
+ data = XNEW (ptid_t);
+ *data = ptid;
+ c = make_cleanup (disable_thread_stack_temporaries, data);
+
+ return c;
+}
+
+/* Return non-zero value if stack temporaies are enabled for the thread
+ with id PTID. */
+
+int
+thread_stack_temporaries_enabled_p (ptid_t ptid)
+{
+ struct thread_info *tp = find_thread_ptid (ptid);
+
+ if (tp == NULL)
+ return 0;
+ else
+ return tp->stack_temporaries_enabled;
+}
+
+/* Push V on to the stack temporaries of the thread with id PTID. */
+
+void
+push_thread_stack_temporary (ptid_t ptid, struct value *v)
+{
+ struct thread_info *tp = find_thread_ptid (ptid);
+
+ gdb_assert (tp != NULL && tp->stack_temporaries_enabled);
+ VEC_safe_push (value_ptr, tp->stack_temporaries, v);
+}
+
+/* Return 1 if VAL is among the stack temporaries of the thread
+ with id PTID. Return 0 otherwise. */
+
+int
+value_in_thread_stack_temporaries (struct value *val, ptid_t ptid)
+{
+ struct thread_info *tp = find_thread_ptid (ptid);
+
+ gdb_assert (tp != NULL && tp->stack_temporaries_enabled);
+ if (!VEC_empty (value_ptr, tp->stack_temporaries))
+ {
+ struct value *v;
+ int i;
+
+ for (i = 0; VEC_iterate (value_ptr, tp->stack_temporaries, i, v); i++)
+ if (v == val)
+ return 1;
+ }
+
+ return 0;
+}
+
+/* Return the last of the stack temporaries for thread with id PTID.
+ Return NULL if there are no stack temporaries for the thread. */
+
+struct value *
+get_last_thread_stack_temporary (ptid_t ptid)
+{
+ struct value *lastval = NULL;
+ struct thread_info *tp = find_thread_ptid (ptid);
+
+ gdb_assert (tp != NULL);
+ if (!VEC_empty (value_ptr, tp->stack_temporaries))
+ lastval = VEC_last (value_ptr, tp->stack_temporaries);
+
+ return lastval;
+}
+
+void
+thread_change_ptid (ptid_t old_ptid, ptid_t new_ptid)
+{
+ struct inferior *inf;
+ struct thread_info *tp;
+
+ /* It can happen that what we knew as the target inferior id
+ changes. E.g, target remote may only discover the remote process
+ pid after adding the inferior to GDB's list. */
+ inf = find_inferior_ptid (old_ptid);
+ inf->pid = ptid_get_pid (new_ptid);
+
+ tp = find_thread_ptid (old_ptid);
+ tp->ptid = new_ptid;
+
+ observer_notify_thread_ptid_changed (old_ptid, new_ptid);
+}
+
+/* See gdbthread.h. */
+
+void
+set_resumed (ptid_t ptid, int resumed)
+{
+ struct thread_info *tp;
+ int all = ptid == minus_one_ptid;
+
+ if (all || ptid_is_pid (ptid))
+ {
+ for (tp = thread_list; tp; tp = tp->next)
+ if (all || ptid_get_pid (tp->ptid) == ptid_get_pid (ptid))
+ tp->resumed = resumed;
+ }
+ else
+ {
+ tp = find_thread_ptid (ptid);
+ gdb_assert (tp != NULL);
+ tp->resumed = resumed;
+ }
+}
+
+/* Helper for set_running, that marks one thread either running or
+ stopped. */
+
+static int
+set_running_thread (struct thread_info *tp, int running)
+{
+ int started = 0;
+
+ if (running && tp->state == THREAD_STOPPED)
+ started = 1;
+ tp->state = running ? THREAD_RUNNING : THREAD_STOPPED;
+
+ if (!running)
+ {
+ /* If the thread is now marked stopped, remove it from
+ the step-over queue, so that we don't try to resume
+ it until the user wants it to. */
+ if (tp->step_over_next != NULL)
+ thread_step_over_chain_remove (tp);
+ }
+
+ return started;
+}
+
+void
+set_running (ptid_t ptid, int running)
+{
+ struct thread_info *tp;
+ int all = ptid == minus_one_ptid;
+ int any_started = 0;
+
+ /* We try not to notify the observer if no thread has actually changed
+ the running state -- merely to reduce the number of messages to
+ frontend. Frontend is supposed to handle multiple *running just fine. */
+ if (all || ptid_is_pid (ptid))
+ {
+ for (tp = thread_list; tp; tp = tp->next)
+ if (all || ptid_get_pid (tp->ptid) == ptid_get_pid (ptid))
+ {
+ if (tp->state == THREAD_EXITED)
+ continue;
+
+ if (set_running_thread (tp, running))
+ any_started = 1;
+ }
+ }
+ else
+ {
+ tp = find_thread_ptid (ptid);
+ gdb_assert (tp != NULL);
+ gdb_assert (tp->state != THREAD_EXITED);
+ if (set_running_thread (tp, running))
+ any_started = 1;
+ }
+ if (any_started)
+ observer_notify_target_resumed (ptid);
+}
+
+static int
+is_thread_state (ptid_t ptid, enum thread_state state)
+{
+ struct thread_info *tp;
+
+ tp = find_thread_ptid (ptid);
+ gdb_assert (tp);
+ return tp->state == state;
+}
+
+int
+is_stopped (ptid_t ptid)
+{
+ return is_thread_state (ptid, THREAD_STOPPED);
+}
+
+int
+is_exited (ptid_t ptid)
+{
+ return is_thread_state (ptid, THREAD_EXITED);
+}
+
+int
+is_running (ptid_t ptid)
+{
+ return is_thread_state (ptid, THREAD_RUNNING);
+}
+
+int
+is_executing (ptid_t ptid)
+{
+ struct thread_info *tp;
+
+ tp = find_thread_ptid (ptid);
+ gdb_assert (tp);
+ return tp->executing;
+}
+
+void
+set_executing (ptid_t ptid, int executing)
+{
+ struct thread_info *tp;
+ int all = ptid == minus_one_ptid;
+
+ if (all || ptid_is_pid (ptid))
+ {
+ for (tp = thread_list; tp; tp = tp->next)
+ if (all || ptid_get_pid (tp->ptid) == ptid_get_pid (ptid))
+ tp->executing = executing;
+ }
+ else
+ {
+ tp = find_thread_ptid (ptid);
+ gdb_assert (tp);
+ tp->executing = executing;
+ }
+
+ /* It only takes one running thread to spawn more threads.*/
+ if (executing)
+ threads_executing = 1;
+ /* Only clear the flag if the caller is telling us everything is
+ stopped. */
+ else if (minus_one_ptid == ptid)
+ threads_executing = 0;
+}
+
+/* See gdbthread.h. */
+
+int
+threads_are_executing (void)
+{
+ return threads_executing;
+}
+
+void
+set_stop_requested (ptid_t ptid, int stop)
+{
+ struct thread_info *tp;
+ int all = ptid == minus_one_ptid;
+
+ if (all || ptid_is_pid (ptid))
+ {
+ for (tp = thread_list; tp; tp = tp->next)
+ if (all || ptid_get_pid (tp->ptid) == ptid_get_pid (ptid))
+ tp->stop_requested = stop;
+ }
+ else
+ {
+ tp = find_thread_ptid (ptid);
+ gdb_assert (tp);
+ tp->stop_requested = stop;
+ }
+
+ /* Call the stop requested observer so other components of GDB can
+ react to this request. */
+ if (stop)
+ observer_notify_thread_stop_requested (ptid);
+}
+
+void
+finish_thread_state (ptid_t ptid)
+{
+ struct thread_info *tp;
+ int all;
+ int any_started = 0;
+
+ all = ptid == minus_one_ptid;
+
+ if (all || ptid_is_pid (ptid))
+ {
+ for (tp = thread_list; tp; tp = tp->next)
+ {
+ if (tp->state == THREAD_EXITED)
+ continue;
+ if (all || ptid_get_pid (ptid) == ptid_get_pid (tp->ptid))
+ {
+ if (set_running_thread (tp, tp->executing))
+ any_started = 1;
+ }
+ }
+ }
+ else
+ {
+ tp = find_thread_ptid (ptid);
+ gdb_assert (tp);
+ if (tp->state != THREAD_EXITED)
+ {
+ if (set_running_thread (tp, tp->executing))
+ any_started = 1;
+ }
+ }
+
+ if (any_started)
+ observer_notify_target_resumed (ptid);
+}
+
+void
+finish_thread_state_cleanup (void *arg)
+{
+ ptid_t *ptid_p = (ptid_t *) arg;
+
+ gdb_assert (arg);
+
+ finish_thread_state (*ptid_p);
+}
+
+/* See gdbthread.h. */
+
+void
+validate_registers_access (void)
+{
+ /* No selected thread, no registers. */
+ if (inferior_ptid == null_ptid)
+ error (_("No thread selected."));
+
+ /* Don't try to read from a dead thread. */
+ if (is_exited (inferior_ptid))
+ error (_("The current thread has terminated"));
+
+ /* ... or from a spinning thread. FIXME: This isn't actually fully
+ correct. It'll allow an user-requested access (e.g., "print $pc"
+ at the prompt) when a thread is not executing for some internal
+ reason, but is marked running from the user's perspective. E.g.,
+ the thread is waiting for its turn in the step-over queue. */
+ if (is_executing (inferior_ptid))
+ error (_("Selected thread is running."));
+}
+
+/* See gdbthread.h. */
+
+bool
+can_access_registers_ptid (ptid_t ptid)
+{
+ /* No thread, no registers. */
+ if (ptid == null_ptid)
+ return false;
+
+ /* Don't try to read from a dead thread. */
+ if (is_exited (ptid))
+ return false;
+
+ /* ... or from a spinning thread. FIXME: see validate_registers_access. */
+ if (is_executing (ptid))
+ return false;
+
+ return true;
+}
+
+int
+pc_in_thread_step_range (CORE_ADDR pc, struct thread_info *thread)
+{
+ return (pc >= thread->control.step_range_start
+ && pc < thread->control.step_range_end);
+}
+
+/* Helper for print_thread_info. Returns true if THR should be
+ printed. If REQUESTED_THREADS, a list of GDB ids/ranges, is not
+ NULL, only print THR if its ID is included in the list. GLOBAL_IDS
+ is true if REQUESTED_THREADS is list of global IDs, false if a list
+ of per-inferior thread ids. If PID is not -1, only print THR if it
+ is a thread from the process PID. Otherwise, threads from all
+ attached PIDs are printed. If both REQUESTED_THREADS is not NULL
+ and PID is not -1, then the thread is printed if it belongs to the
+ specified process. Otherwise, an error is raised. */
+
+static int
+should_print_thread (const char *requested_threads, int default_inf_num,
+ int global_ids, int pid, struct thread_info *thr)
+{
+ if (requested_threads != NULL && *requested_threads != '\0')
{
- if (ptid_equal (tp->ptid, current_ptid))
- printf_filtered ("* ");
+ int in_list;
+
+ if (global_ids)
+ in_list = number_is_in_list (requested_threads, thr->global_num);
else
- printf_filtered (" ");
+ in_list = tid_is_in_list (requested_threads, default_inf_num,
+ thr->inf->num, thr->per_inf_num);
+ if (!in_list)
+ return 0;
+ }
- printf_filtered ("%d %s", tp->num, target_tid_to_str (tp->ptid));
+ if (pid != -1 && ptid_get_pid (thr->ptid) != pid)
+ {
+ if (requested_threads != NULL && *requested_threads != '\0')
+ error (_("Requested thread not found in requested process"));
+ return 0;
+ }
- extra_info = target_extra_thread_info (tp);
- if (extra_info)
- printf_filtered (" (%s)", extra_info);
- puts_filtered (" ");
- /* That switch put us at the top of the stack (leaf frame). */
- switch_to_thread (tp->ptid);
- print_stack_frame (get_selected_frame (NULL), 0, LOCATION);
+ if (thr->state == THREAD_EXITED)
+ return 0;
+
+ return 1;
+}
+
+/* Like print_thread_info, but in addition, GLOBAL_IDS indicates
+ whether REQUESTED_THREADS is a list of global or per-inferior
+ thread ids. */
+
+static void
+print_thread_info_1 (struct ui_out *uiout, char *requested_threads,
+ int global_ids, int pid,
+ int show_global_ids)
+{
+ struct thread_info *tp;
+ ptid_t current_ptid;
+ const char *extra_info, *name, *target_id;
+ struct inferior *inf;
+ int default_inf_num = current_inferior ()->num;
+
+ update_thread_list ();
+ current_ptid = inferior_ptid;
+
+ {
+ /* For backward compatibility, we make a list for MI. A table is
+ preferable for the CLI, though, because it shows table
+ headers. */
+ gdb::optional<ui_out_emit_list> list_emitter;
+ gdb::optional<ui_out_emit_table> table_emitter;
+
+ if (uiout->is_mi_like_p ())
+ list_emitter.emplace (uiout, "threads");
+ else
+ {
+ int n_threads = 0;
+
+ for (tp = thread_list; tp; tp = tp->next)
+ {
+ if (!should_print_thread (requested_threads, default_inf_num,
+ global_ids, pid, tp))
+ continue;
+
+ ++n_threads;
+ }
+
+ if (n_threads == 0)
+ {
+ if (requested_threads == NULL || *requested_threads == '\0')
+ uiout->message (_("No threads.\n"));
+ else
+ uiout->message (_("No threads match '%s'.\n"),
+ requested_threads);
+ return;
+ }
+
+ table_emitter.emplace (uiout, show_global_ids ? 5 : 4,
+ n_threads, "threads");
+
+ uiout->table_header (1, ui_left, "current", "");
+ uiout->table_header (4, ui_left, "id-in-tg", "Id");
+ if (show_global_ids)
+ uiout->table_header (4, ui_left, "id", "GId");
+ uiout->table_header (17, ui_left, "target-id", "Target Id");
+ uiout->table_header (1, ui_left, "frame", "Frame");
+ uiout->table_body ();
+ }
+
+ /* We'll be switching threads temporarily. */
+ scoped_restore_current_thread restore_thread;
+
+ ALL_THREADS_BY_INFERIOR (inf, tp)
+ {
+ int core;
+
+ if (!should_print_thread (requested_threads, default_inf_num,
+ global_ids, pid, tp))
+ continue;
+
+ ui_out_emit_tuple tuple_emitter (uiout, NULL);
+
+ if (!uiout->is_mi_like_p ())
+ {
+ if (tp->ptid == current_ptid)
+ uiout->field_string ("current", "*");
+ else
+ uiout->field_skip ("current");
+
+ uiout->field_string ("id-in-tg", print_thread_id (tp));
+ }
+
+ if (show_global_ids || uiout->is_mi_like_p ())
+ uiout->field_int ("id", tp->global_num);
+
+ /* For the CLI, we stuff everything into the target-id field.
+ This is a gross hack to make the output come out looking
+ correct. The underlying problem here is that ui-out has no
+ way to specify that a field's space allocation should be
+ shared by several fields. For MI, we do the right thing
+ instead. */
+
+ target_id = target_pid_to_str (tp->ptid);
+ extra_info = target_extra_thread_info (tp);
+ name = tp->name ? tp->name : target_thread_name (tp);
+
+ if (uiout->is_mi_like_p ())
+ {
+ uiout->field_string ("target-id", target_id);
+ if (extra_info)
+ uiout->field_string ("details", extra_info);
+ if (name)
+ uiout->field_string ("name", name);
+ }
+ else
+ {
+ std::string contents;
+
+ if (extra_info && name)
+ contents = string_printf ("%s \"%s\" (%s)", target_id,
+ name, extra_info);
+ else if (extra_info)
+ contents = string_printf ("%s (%s)", target_id, extra_info);
+ else if (name)
+ contents = string_printf ("%s \"%s\"", target_id, name);
+ else
+ contents = target_id;
+
+ uiout->field_string ("target-id", contents.c_str ());
+ }
+
+ if (tp->state == THREAD_RUNNING)
+ uiout->text ("(running)\n");
+ else
+ {
+ /* The switch below puts us at the top of the stack (leaf
+ frame). */
+ switch_to_thread (tp->ptid);
+ print_stack_frame (get_selected_frame (NULL),
+ /* For MI output, print frame level. */
+ uiout->is_mi_like_p (),
+ LOCATION, 0);
+ }
+
+ if (uiout->is_mi_like_p ())
+ {
+ const char *state = "stopped";
+
+ if (tp->state == THREAD_RUNNING)
+ state = "running";
+ uiout->field_string ("state", state);
+ }
+
+ core = target_core_of_thread (tp->ptid);
+ if (uiout->is_mi_like_p () && core != -1)
+ uiout->field_int ("core", core);
+ }
+
+ /* This end scope restores the current thread and the frame
+ selected before the "info threads" command, and it finishes the
+ ui-out list or table. */
+ }
+
+ if (pid == -1 && requested_threads == NULL)
+ {
+ if (uiout->is_mi_like_p ()
+ && inferior_ptid != null_ptid)
+ {
+ int num = ptid_to_global_thread_id (inferior_ptid);
+
+ gdb_assert (num != 0);
+ uiout->field_int ("current-thread-id", num);
+ }
+
+ if (inferior_ptid != null_ptid && is_exited (inferior_ptid))
+ uiout->message ("\n\
+The current thread <Thread ID %s> has terminated. See `help thread'.\n",
+ print_thread_id (inferior_thread ()));
+ else if (thread_list != NULL && inferior_ptid == null_ptid)
+ uiout->message ("\n\
+No selected thread. See `help thread'.\n");
}
+}
- /* Restores the current thread and the frame selected before
- the "info threads" command. */
- do_cleanups (old_chain);
+/* See gdbthread.h. */
- /* If case we were not able to find the original frame, print the
- new selected frame. */
- if (frame_find_by_id (saved_frame_id) == NULL)
+void
+print_thread_info (struct ui_out *uiout, char *requested_threads, int pid)
+{
+ print_thread_info_1 (uiout, requested_threads, 1, pid, 0);
+}
+
+/* Implementation of the "info threads" command.
+
+ Note: this has the drawback that it _really_ switches
+ threads, which frees the frame cache. A no-side
+ effects info-threads command would be nicer. */
+
+static void
+info_threads_command (char *arg, int from_tty)
+{
+ int show_global_ids = 0;
+
+ if (arg != NULL
+ && check_for_argument (&arg, "-gid", sizeof ("-gid") - 1))
{
- warning (_("Couldn't restore frame in current thread, at frame 0"));
- print_stack_frame (get_selected_frame (NULL), 0, LOCATION);
+ arg = skip_spaces (arg);
+ show_global_ids = 1;
}
+
+ print_thread_info_1 (current_uiout, arg, 0, -1, show_global_ids);
+}
+
+/* See gdbthread.h. */
+
+void
+switch_to_thread_no_regs (struct thread_info *thread)
+{
+ struct inferior *inf = thread->inf;
+
+ set_current_program_space (inf->pspace);
+ set_current_inferior (inf);
+
+ inferior_ptid = thread->ptid;
+ stop_pc = ~(CORE_ADDR) 0;
}
-/* Switch from one thread to another. */
+/* Switch to no thread selected. */
static void
-switch_to_thread (ptid_t ptid)
+switch_to_no_thread ()
{
- if (ptid_equal (ptid, inferior_ptid))
+ if (inferior_ptid == null_ptid)
return;
- inferior_ptid = ptid;
+ inferior_ptid = null_ptid;
reinit_frame_cache ();
- registers_changed ();
- stop_pc = read_pc ();
+ stop_pc = ~(CORE_ADDR) 0;
}
+/* Switch from one thread to another. */
+
static void
-restore_current_thread (ptid_t ptid)
+switch_to_thread (thread_info *thr)
{
- if (!ptid_equal (ptid, inferior_ptid))
+ gdb_assert (thr != NULL);
+
+ if (inferior_ptid == thr->ptid)
+ return;
+
+ switch_to_thread_no_regs (thr);
+
+ reinit_frame_cache ();
+
+ /* We don't check for is_stopped, because we're called at times
+ while in the TARGET_RUNNING state, e.g., while handling an
+ internal event. */
+ if (thr->state != THREAD_EXITED
+ && !thr->executing)
+ stop_pc = regcache_read_pc (get_thread_regcache (thr->ptid));
+}
+
+/* See gdbthread.h. */
+
+void
+switch_to_thread (ptid_t ptid)
+{
+ if (ptid == null_ptid)
+ switch_to_no_thread ();
+ else
+ switch_to_thread (find_thread_ptid (ptid));
+}
+
+static void
+restore_selected_frame (struct frame_id a_frame_id, int frame_level)
+{
+ struct frame_info *frame = NULL;
+ int count;
+
+ /* This means there was no selected frame. */
+ if (frame_level == -1)
{
- switch_to_thread (ptid);
+ select_frame (NULL);
+ return;
+ }
+
+ gdb_assert (frame_level >= 0);
+
+ /* Restore by level first, check if the frame id is the same as
+ expected. If that fails, try restoring by frame id. If that
+ fails, nothing to do, just warn the user. */
+
+ count = frame_level;
+ frame = find_relative_frame (get_current_frame (), &count);
+ if (count == 0
+ && frame != NULL
+ /* The frame ids must match - either both valid or both outer_frame_id.
+ The latter case is not failsafe, but since it's highly unlikely
+ the search by level finds the wrong frame, it's 99.9(9)% of
+ the time (for all practical purposes) safe. */
+ && frame_id_eq (get_frame_id (frame), a_frame_id))
+ {
+ /* Cool, all is fine. */
+ select_frame (frame);
+ return;
+ }
+
+ frame = frame_find_by_id (a_frame_id);
+ if (frame != NULL)
+ {
+ /* Cool, refound it. */
+ select_frame (frame);
+ return;
+ }
+
+ /* Nothing else to do, the frame layout really changed. Select the
+ innermost stack frame. */
+ select_frame (get_current_frame ());
+
+ /* Warn the user. */
+ if (frame_level > 0 && !current_uiout->is_mi_like_p ())
+ {
+ warning (_("Couldn't restore frame #%d in "
+ "current thread. Bottom (innermost) frame selected:"),
+ frame_level);
+ /* For MI, we should probably have a notification about
+ current frame change. But this error is not very
+ likely, so don't bother for now. */
+ print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1);
}
}
-static void
-restore_selected_frame (struct frame_id a_frame_id)
+scoped_restore_current_thread::~scoped_restore_current_thread ()
{
- struct frame_info *selected_frame_info = NULL;
+ /* If an entry of thread_info was previously selected, it won't be
+ deleted because we've increased its refcount. The thread represented
+ by this thread_info entry may have already exited (due to normal exit,
+ detach, etc), so the thread_info.state is THREAD_EXITED. */
+ if (m_thread != NULL
+ /* If the previously selected thread belonged to a process that has
+ in the mean time exited (or killed, detached, etc.), then don't revert
+ back to it, but instead simply drop back to no thread selected. */
+ && m_inf->pid != 0)
+ switch_to_thread (m_thread);
+ else
+ {
+ switch_to_no_thread ();
+ set_current_inferior (m_inf);
+ }
- if (frame_id_eq (a_frame_id, null_frame_id))
- return;
+ /* The running state of the originally selected thread may have
+ changed, so we have to recheck it here. */
+ if (inferior_ptid != null_ptid
+ && m_was_stopped
+ && is_stopped (inferior_ptid)
+ && target_has_registers
+ && target_has_stack
+ && target_has_memory)
+ restore_selected_frame (m_selected_frame_id, m_selected_frame_level);
+
+ if (m_thread != NULL)
+ m_thread->decref ();
+ m_inf->decref ();
+}
+
+scoped_restore_current_thread::scoped_restore_current_thread ()
+{
+ m_thread = NULL;
+ m_inf = current_inferior ();
- if ((selected_frame_info = frame_find_by_id (a_frame_id)) != NULL)
+ if (inferior_ptid != null_ptid)
{
- select_frame (selected_frame_info);
+ thread_info *tp = find_thread_ptid (inferior_ptid);
+ struct frame_info *frame;
+
+ gdb_assert (tp != NULL);
+
+ m_was_stopped = tp->state == THREAD_STOPPED;
+ if (m_was_stopped
+ && target_has_registers
+ && target_has_stack
+ && target_has_memory)
+ {
+ /* When processing internal events, there might not be a
+ selected frame. If we naively call get_selected_frame
+ here, then we can end up reading debuginfo for the
+ current frame, but we don't generally need the debuginfo
+ at this point. */
+ frame = get_selected_frame_if_set ();
+ }
+ else
+ frame = NULL;
+
+ m_selected_frame_id = get_frame_id (frame);
+ m_selected_frame_level = frame_relative_level (frame);
+
+ tp->incref ();
+ m_thread = tp;
}
+
+ m_inf->incref ();
}
-struct current_thread_cleanup
+/* See gdbthread.h. */
+
+int
+show_thread_that_caused_stop (void)
{
- ptid_t inferior_ptid;
- struct frame_id selected_frame_id;
-};
+ return highest_thread_num > 1;
+}
-static void
-do_restore_current_thread_cleanup (void *arg)
+/* See gdbthread.h. */
+
+int
+show_inferior_qualified_tids (void)
+{
+ return (inferior_list->next != NULL || inferior_list->num != 1);
+}
+
+/* See gdbthread.h. */
+
+const char *
+print_thread_id (struct thread_info *thr)
{
- struct current_thread_cleanup *old = arg;
- restore_current_thread (old->inferior_ptid);
- restore_selected_frame (old->selected_frame_id);
- xfree (old);
+ char *s = get_print_cell ();
+
+ if (show_inferior_qualified_tids ())
+ xsnprintf (s, PRINT_CELL_SIZE, "%d.%d", thr->inf->num, thr->per_inf_num);
+ else
+ xsnprintf (s, PRINT_CELL_SIZE, "%d", thr->per_inf_num);
+ return s;
}
-static struct cleanup *
-make_cleanup_restore_current_thread (ptid_t inferior_ptid,
- struct frame_id a_frame_id)
+/* If true, tp_array_compar should sort in ascending order, otherwise
+ in descending order. */
+
+static bool tp_array_compar_ascending;
+
+/* Sort an array for struct thread_info pointers by thread ID (first
+ by inferior number, and then by per-inferior thread number). The
+ order is determined by TP_ARRAY_COMPAR_ASCENDING. */
+
+static bool
+tp_array_compar (const thread_info *a, const thread_info *b)
{
- struct current_thread_cleanup *old
- = xmalloc (sizeof (struct current_thread_cleanup));
- old->inferior_ptid = inferior_ptid;
- old->selected_frame_id = a_frame_id;
- return make_cleanup (do_restore_current_thread_cleanup, old);
+ if (a->inf->num != b->inf->num)
+ {
+ if (tp_array_compar_ascending)
+ return a->inf->num < b->inf->num;
+ else
+ return a->inf->num > b->inf->num;
+ }
+
+ if (tp_array_compar_ascending)
+ return (a->per_inf_num < b->per_inf_num);
+ else
+ return (a->per_inf_num > b->per_inf_num);
}
/* Apply a GDB command to a list of threads. List syntax is a whitespace
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 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
thread_apply_all_command (char *cmd, int from_tty)
{
- struct thread_info *tp;
- struct cleanup *old_chain;
- struct cleanup *saved_cmd_cleanup_chain;
- char *saved_cmd;
- struct frame_id saved_frame_id;
- ptid_t current_ptid;
- int thread_has_changed = 0;
+ tp_array_compar_ascending = false;
+ if (cmd != NULL
+ && check_for_argument (&cmd, "-ascending", strlen ("-ascending")))
+ {
+ cmd = skip_spaces (cmd);
+ tp_array_compar_ascending = true;
+ }
if (cmd == NULL || *cmd == '\000')
error (_("Please specify a command following the thread ID list"));
-
- current_ptid = inferior_ptid;
- saved_frame_id = get_frame_id (get_selected_frame (NULL));
- old_chain = make_cleanup_restore_current_thread (inferior_ptid, saved_frame_id);
- /* It is safe to update the thread list now, before
- traversing it for "thread apply all". MVS */
- target_find_new_threads ();
+ update_thread_list ();
/* Save a copy of the command in case it is clobbered by
- execute_command */
- saved_cmd = xstrdup (cmd);
- saved_cmd_cleanup_chain = make_cleanup (xfree, (void *) saved_cmd);
- for (tp = thread_list; tp; tp = tp->next)
- if (thread_alive (tp))
+ execute_command. */
+ std::string saved_cmd = cmd;
+
+ int tc = live_threads_count ();
+ if (tc != 0)
+ {
+ /* Save a copy of the thread list and increment each thread's
+ refcount while executing the command in the context of each
+ thread, in case the command is one that wipes threads. E.g.,
+ detach, kill, disconnect, etc., or even normally continuing
+ over an inferior or thread exit. */
+ std::vector<thread_info *> thr_list_cpy;
+ thr_list_cpy.reserve (tc);
+
{
- switch_to_thread (tp->ptid);
- printf_filtered (_("\nThread %d (%s):\n"),
- tp->num, target_tid_to_str (inferior_ptid));
- execute_command (cmd, from_tty);
- strcpy (cmd, saved_cmd); /* Restore exact command used previously */
+ thread_info *tp;
+
+ ALL_NON_EXITED_THREADS (tp)
+ {
+ thr_list_cpy.push_back (tp);
+ }
+
+ gdb_assert (thr_list_cpy.size () == tc);
}
- if (!ptid_equal (current_ptid, inferior_ptid))
- thread_has_changed = 1;
+ /* Increment the refcounts, and restore them back on scope
+ exit. */
+ scoped_inc_dec_ref inc_dec_ref (thr_list_cpy);
+
+ std::sort (thr_list_cpy.begin (), thr_list_cpy.end (), tp_array_compar);
- do_cleanups (saved_cmd_cleanup_chain);
- do_cleanups (old_chain);
- /* Print stack frame only if we changed thread. */
- if (thread_has_changed)
- print_stack_frame (get_current_frame (), 1, SRC_LINE);
+ scoped_restore_current_thread restore_thread;
+ for (thread_info *thr : thr_list_cpy)
+ if (thread_alive (thr))
+ {
+ switch_to_thread (thr->ptid);
+ printf_filtered (_("\nThread %s (%s):\n"),
+ print_thread_id (thr),
+ target_pid_to_str (inferior_ptid));
+ execute_command (cmd, from_tty);
+
+ /* Restore exact command used previously. */
+ strcpy (cmd, saved_cmd.c_str ());
+ }
+ }
}
+/* Implementation of the "thread apply" command. */
+
static void
-thread_apply_command (char *tidlist, int from_tty)
-{
- char *cmd;
- char *p;
- struct cleanup *old_chain;
- struct cleanup *saved_cmd_cleanup_chain;
- char *saved_cmd;
- struct frame_id saved_frame_id;
- ptid_t current_ptid;
- int thread_has_changed = 0;
+thread_apply_command (const char *tidlist, int from_tty)
+{
+ char *cmd = NULL;
+ tid_range_parser parser;
if (tidlist == NULL || *tidlist == '\000')
error (_("Please specify a thread ID list"));
- for (cmd = tidlist; *cmd != '\000' && !isalpha (*cmd); cmd++);
+ parser.init (tidlist, current_inferior ()->num);
+ while (!parser.finished ())
+ {
+ int inf_num, thr_start, thr_end;
- if (*cmd == '\000')
+ if (!parser.get_tid_range (&inf_num, &thr_start, &thr_end))
+ {
+ cmd = (char *) parser.cur_tok ();
+ break;
+ }
+ }
+
+ if (cmd == NULL)
error (_("Please specify a command following the thread ID list"));
- current_ptid = inferior_ptid;
- saved_frame_id = get_frame_id (get_selected_frame (NULL));
- old_chain = make_cleanup_restore_current_thread (inferior_ptid, saved_frame_id);
+ if (tidlist == cmd || !isalpha (cmd[0]))
+ invalid_thread_id_error (cmd);
/* Save a copy of the command in case it is clobbered by
- execute_command */
- saved_cmd = xstrdup (cmd);
- saved_cmd_cleanup_chain = make_cleanup (xfree, (void *) saved_cmd);
- while (tidlist < cmd)
- {
- struct thread_info *tp;
- int start, end;
+ execute_command. */
+ std::string saved_cmd = cmd;
+
+ scoped_restore_current_thread restore_thread;
- start = strtol (tidlist, &p, 10);
- if (p == tidlist)
- error (_("Error parsing %s"), tidlist);
- tidlist = p;
+ parser.init (tidlist, current_inferior ()->num);
+ while (!parser.finished () && parser.cur_tok () < cmd)
+ {
+ struct thread_info *tp = NULL;
+ struct inferior *inf;
+ int inf_num, thr_num;
- while (*tidlist == ' ' || *tidlist == '\t')
- tidlist++;
+ parser.get_tid (&inf_num, &thr_num);
+ inf = find_inferior_id (inf_num);
+ if (inf != NULL)
+ tp = find_thread_id (inf, thr_num);
- if (*tidlist == '-') /* Got a range of IDs? */
+ if (parser.in_star_range ())
{
- tidlist++; /* Skip the - */
- end = strtol (tidlist, &p, 10);
- if (p == tidlist)
- error (_("Error parsing %s"), tidlist);
- tidlist = p;
-
- while (*tidlist == ' ' || *tidlist == '\t')
- tidlist++;
+ if (inf == NULL)
+ {
+ warning (_("Unknown inferior %d"), inf_num);
+ parser.skip_range ();
+ continue;
+ }
+
+ /* No use looking for threads past the highest thread number
+ the inferior ever had. */
+ if (thr_num >= inf->highest_thread_num)
+ parser.skip_range ();
+
+ /* Be quiet about unknown threads numbers. */
+ if (tp == NULL)
+ continue;
}
- else
- end = start;
- for (; start <= end; start++)
+ if (tp == NULL)
{
- tp = find_thread_id (start);
-
- if (!tp)
- warning (_("Unknown thread %d."), start);
- else if (!thread_alive (tp))
- warning (_("Thread %d has terminated."), start);
+ if (show_inferior_qualified_tids () || parser.tid_is_qualified ())
+ warning (_("Unknown thread %d.%d"), inf_num, thr_num);
else
- {
- switch_to_thread (tp->ptid);
- printf_filtered (_("\nThread %d (%s):\n"), tp->num,
- target_tid_to_str (inferior_ptid));
- execute_command (cmd, from_tty);
- strcpy (cmd, saved_cmd); /* Restore exact command used previously */
- }
+ warning (_("Unknown thread %d"), thr_num);
+ continue;
}
- }
- if (!ptid_equal (current_ptid, inferior_ptid))
- thread_has_changed = 1;
+ if (!thread_alive (tp))
+ {
+ warning (_("Thread %s has terminated."), print_thread_id (tp));
+ continue;
+ }
+
+ switch_to_thread (tp->ptid);
+
+ printf_filtered (_("\nThread %s (%s):\n"), print_thread_id (tp),
+ target_pid_to_str (inferior_ptid));
+ execute_command (cmd, from_tty);
- do_cleanups (saved_cmd_cleanup_chain);
- do_cleanups (old_chain);
- /* Print stack frame only if we changed thread. */
- if (thread_has_changed)
- print_stack_frame (get_current_frame (), 1, SRC_LINE);
+ /* Restore exact command used previously. */
+ strcpy (cmd, saved_cmd.c_str ());
+ }
}
/* Switch to the specified thread. Will dispatch off to thread_apply_command
if prefix of arg is `apply'. */
-static void
-thread_command (char *tidstr, int from_tty)
+void
+thread_command (const char *tidstr, int from_tty)
{
- if (!tidstr)
+ if (tidstr == NULL)
{
- /* Don't generate an error, just say which thread is current. */
+ if (inferior_ptid == null_ptid)
+ error (_("No thread selected"));
+
if (target_has_stack)
- printf_filtered (_("[Current thread is %d (%s)]\n"),
- pid_to_thread_id (inferior_ptid),
- target_tid_to_str (inferior_ptid));
+ {
+ struct thread_info *tp = inferior_thread ();
+
+ if (is_exited (inferior_ptid))
+ printf_filtered (_("[Current thread is %s (%s) (exited)]\n"),
+ print_thread_id (tp),
+ target_pid_to_str (inferior_ptid));
+ else
+ printf_filtered (_("[Current thread is %s (%s)]\n"),
+ print_thread_id (tp),
+ target_pid_to_str (inferior_ptid));
+ }
else
error (_("No stack."));
- return;
}
+ else
+ {
+ ptid_t previous_ptid = inferior_ptid;
- gdb_thread_select (uiout, tidstr, NULL);
+ thread_select (tidstr, parse_thread_id (tidstr, NULL));
+
+ /* Print if the thread has not changed, otherwise an event will
+ be sent. */
+ if (inferior_ptid == previous_ptid)
+ {
+ print_selected_thread_frame (current_uiout,
+ USER_SELECTED_THREAD
+ | USER_SELECTED_FRAME);
+ }
+ else
+ {
+ observer_notify_user_selected_context_changed (USER_SELECTED_THREAD
+ | USER_SELECTED_FRAME);
+ }
+ }
}
-static int
-do_captured_thread_select (struct ui_out *uiout, void *tidstr)
+/* Implementation of `thread name'. */
+
+static void
+thread_name_command (const char *arg, int from_tty)
+{
+ struct thread_info *info;
+
+ if (inferior_ptid == null_ptid)
+ error (_("No thread selected"));
+
+ arg = skip_spaces (arg);
+
+ info = inferior_thread ();
+ xfree (info->name);
+ info->name = arg ? xstrdup (arg) : NULL;
+}
+
+/* Find thread ids with a name, target pid, or extra info matching ARG. */
+
+static void
+thread_find_command (const char *arg, int from_tty)
{
- int num;
struct thread_info *tp;
+ const char *tmp;
+ unsigned long match = 0;
- num = value_as_long (parse_and_eval (tidstr));
+ if (arg == NULL || *arg == '\0')
+ error (_("Command requires an argument."));
- tp = find_thread_id (num);
+ tmp = re_comp (arg);
+ if (tmp != 0)
+ error (_("Invalid regexp (%s): %s"), tmp, arg);
- if (!tp)
- error (_("Thread ID %d not known."), num);
+ update_thread_list ();
+ for (tp = thread_list; tp; tp = tp->next)
+ {
+ if (tp->name != NULL && re_exec (tp->name))
+ {
+ printf_filtered (_("Thread %s has name '%s'\n"),
+ print_thread_id (tp), tp->name);
+ match++;
+ }
+
+ tmp = target_thread_name (tp);
+ if (tmp != NULL && re_exec (tmp))
+ {
+ printf_filtered (_("Thread %s has target name '%s'\n"),
+ print_thread_id (tp), tmp);
+ match++;
+ }
+ tmp = target_pid_to_str (tp->ptid);
+ if (tmp != NULL && re_exec (tmp))
+ {
+ printf_filtered (_("Thread %s has target id '%s'\n"),
+ print_thread_id (tp), tmp);
+ match++;
+ }
+
+ tmp = target_extra_thread_info (tp);
+ if (tmp != NULL && re_exec (tmp))
+ {
+ printf_filtered (_("Thread %s has extra info '%s'\n"),
+ print_thread_id (tp), tmp);
+ match++;
+ }
+ }
+ if (!match)
+ printf_filtered (_("No threads match '%s'\n"), arg);
+}
+
+/* Print notices when new threads are attached and detached. */
+int print_thread_events = 1;
+static void
+show_print_thread_events (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file,
+ _("Printing of thread events is %s.\n"),
+ value);
+}
+
+/* See gdbthread.h. */
+
+void
+thread_select (const char *tidstr, thread_info *tp)
+{
if (!thread_alive (tp))
- error (_("Thread ID %d has terminated."), num);
+ error (_("Thread ID %s has terminated."), tidstr);
switch_to_thread (tp->ptid);
- ui_out_text (uiout, "[Switching to thread ");
- ui_out_field_int (uiout, "new-thread-id", pid_to_thread_id (inferior_ptid));
- ui_out_text (uiout, " (");
- ui_out_text (uiout, target_tid_to_str (inferior_ptid));
- ui_out_text (uiout, ")]");
+ annotate_thread_changed ();
+
+ /* Since the current thread may have changed, see if there is any
+ exited thread we can now delete. */
+ prune_threads ();
+}
+
+/* Print thread and frame switch command response. */
+
+void
+print_selected_thread_frame (struct ui_out *uiout,
+ user_selected_what selection)
+{
+ struct thread_info *tp = inferior_thread ();
+ struct inferior *inf = current_inferior ();
+
+ if (selection & USER_SELECTED_THREAD)
+ {
+ if (uiout->is_mi_like_p ())
+ {
+ uiout->field_int ("new-thread-id",
+ inferior_thread ()->global_num);
+ }
+ else
+ {
+ uiout->text ("[Switching to thread ");
+ uiout->field_string ("new-thread-id", print_thread_id (tp));
+ uiout->text (" (");
+ uiout->text (target_pid_to_str (inferior_ptid));
+ uiout->text (")]");
+ }
+ }
+
+ if (tp->state == THREAD_RUNNING)
+ {
+ if (selection & USER_SELECTED_THREAD)
+ uiout->text ("(running)\n");
+ }
+ else if (selection & USER_SELECTED_FRAME)
+ {
+ if (selection & USER_SELECTED_THREAD)
+ uiout->text ("\n");
+
+ if (has_stack_frames ())
+ print_stack_frame_to_uiout (uiout, get_selected_frame (NULL),
+ 1, SRC_AND_LOC, 1);
+ }
+}
+
+/* Update the 'threads_executing' global based on the threads we know
+ about right now. */
+
+static void
+update_threads_executing (void)
+{
+ struct thread_info *tp;
+
+ threads_executing = 0;
+ ALL_NON_EXITED_THREADS (tp)
+ {
+ if (tp->executing)
+ {
+ threads_executing = 1;
+ break;
+ }
+ }
+}
- print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC);
- return GDB_RC_OK;
+void
+update_thread_list (void)
+{
+ target_update_thread_list ();
+ update_threads_executing ();
}
-enum gdb_rc
-gdb_thread_select (struct ui_out *uiout, char *tidstr, char **error_message)
+/* Return a new value for the selected thread's id. Return a value of
+ 0 if no thread is selected. If GLOBAL is true, return the thread's
+ global number. Otherwise return the per-inferior number. */
+
+static struct value *
+thread_num_make_value_helper (struct gdbarch *gdbarch, int global)
{
- if (catch_exceptions_with_msg (uiout, do_captured_thread_select, tidstr,
- error_message, RETURN_MASK_ALL) < 0)
- return GDB_RC_FAIL;
- return GDB_RC_OK;
+ struct thread_info *tp = find_thread_ptid (inferior_ptid);
+ int int_val;
+
+ if (tp == NULL)
+ int_val = 0;
+ else if (global)
+ int_val = tp->global_num;
+ else
+ int_val = tp->per_inf_num;
+
+ return value_from_longest (builtin_type (gdbarch)->builtin_int, int_val);
+}
+
+/* Return a new value for the selected thread's per-inferior thread
+ number. Return a value of 0 if no thread is selected, or no
+ threads exist. */
+
+static struct value *
+thread_id_per_inf_num_make_value (struct gdbarch *gdbarch,
+ struct internalvar *var,
+ void *ignore)
+{
+ return thread_num_make_value_helper (gdbarch, 0);
+}
+
+/* Return a new value for the selected thread's global id. Return a
+ value of 0 if no thread is selected, or no threads exist. */
+
+static struct value *
+global_thread_id_make_value (struct gdbarch *gdbarch, struct internalvar *var,
+ void *ignore)
+{
+ return thread_num_make_value_helper (gdbarch, 1);
}
/* Commands with a prefix of `thread'. */
struct cmd_list_element *thread_cmd_list = NULL;
+/* Implementation of `thread' variable. */
+
+static const struct internalvar_funcs thread_funcs =
+{
+ thread_id_per_inf_num_make_value,
+ NULL,
+ NULL
+};
+
+/* Implementation of `gthread' variable. */
+
+static const struct internalvar_funcs gthread_funcs =
+{
+ global_thread_id_make_value,
+ NULL,
+ NULL
+};
+
void
_initialize_thread (void)
{
static struct cmd_list_element *thread_apply_list = NULL;
add_info ("threads", info_threads_command,
- _("IDs of currently known threads."));
+ _("Display currently known threads.\n\
+Usage: info threads [-gid] [ID]...\n\
+-gid: Show global thread IDs.\n\
+If ID is given, it is a space-separated list of IDs of threads to display.\n\
+Otherwise, all threads are displayed."));
add_prefix_cmd ("thread", class_run, thread_command, _("\
Use this command to switch between threads.\n\
&thread_apply_list, "thread apply ", 1, &thread_cmd_list);
add_cmd ("all", class_run, thread_apply_all_command,
- _("Apply a command to all threads."), &thread_apply_list);
-
- if (!xdb_commands)
- add_com_alias ("t", "thread", class_run, 1);
+ _("\
+Apply a command to all threads.\n\
+\n\
+Usage: thread apply all [-ascending] <command>\n\
+-ascending: Call <command> for all threads in ascending order.\n\
+ The default is descending order.\
+"),
+ &thread_apply_list);
+
+ add_cmd ("name", class_run, thread_name_command,
+ _("Set the current thread's name.\n\
+Usage: thread name [NAME]\n\
+If NAME is not given, then any existing name is removed."), &thread_cmd_list);
+
+ add_cmd ("find", class_run, thread_find_command, _("\
+Find threads that match a regular expression.\n\
+Usage: thread find REGEXP\n\
+Will display thread ids whose name, target ID, or extra info matches REGEXP."),
+ &thread_cmd_list);
+
+ add_com_alias ("t", "thread", class_run, 1);
+
+ add_setshow_boolean_cmd ("thread-events", no_class,
+ &print_thread_events, _("\
+Set printing of thread events (such as thread start and exit)."), _("\
+Show printing of thread events (such as thread start and exit)."), NULL,
+ NULL,
+ show_print_thread_events,
+ &setprintlist, &showprintlist);
+
+ create_internalvar_type_lazy ("_thread", &thread_funcs, NULL);
+ create_internalvar_type_lazy ("_gthread", >hread_funcs, NULL);
}
projects / deliverable / binutils-gdb.git / blobdiff