/* Multi-process/thread control for GDB, the GNU debugger.
- Copyright 1986, 1987, 1988, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1986, 1987, 1988, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2001, 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "symtab.h"
#include <signal.h>
#include "ui-out.h"
-/*#include "lynxos-core.h" */
-
/* Definition of struct thread_info exported to gdbthread.h */
/* Prototypes for exported functions. */
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);
void
delete_step_resume_breakpoint (void *arg)
struct thread_info *tp;
ptid_t current_ptid;
struct frame_info *cur_frame;
- struct frame_id saved_frame_id = get_frame_id (get_selected_frame (NULL));
+ struct cleanup *old_chain;
+ struct frame_id saved_frame_id;
char *extra_info;
+ /* 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);
+
prune_threads ();
target_find_new_threads ();
current_ptid = inferior_ptid;
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);
}
- switch_to_thread (current_ptid);
+ /* Restores the current thread and the frame selected before
+ the "info threads" command. */
+ do_cleanups (old_chain);
- /* Restores the frame set by the user before the "info threads"
- command. We have finished the info-threads display by switching
- back to the current thread. That switch has put us at the top of
- the stack (leaf frame). */
- cur_frame = frame_find_by_id (saved_frame_id);
- if (cur_frame == NULL)
+ /* 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)
{
- /* Ooops, can't restore, tell user where we are. */
warning (_("Couldn't restore frame in current thread, at frame 0"));
print_stack_frame (get_selected_frame (NULL), 0, LOCATION);
}
- else
- {
- select_frame (cur_frame);
- /* re-show current frame. */
- show_stack_frame (cur_frame);
- }
}
/* Switch from one thread to another. */
return;
inferior_ptid = ptid;
- flush_cached_frames ();
+ reinit_frame_cache ();
registers_changed ();
stop_pc = read_pc ();
- select_frame (get_current_frame ());
}
static void
if (!ptid_equal (ptid, inferior_ptid))
{
switch_to_thread (ptid);
- print_stack_frame (get_current_frame (), 1, SRC_LINE);
+ }
+}
+
+static void
+restore_selected_frame (struct frame_id a_frame_id)
+{
+ struct frame_info *selected_frame_info = NULL;
+
+ if (frame_id_eq (a_frame_id, null_frame_id))
+ return;
+
+ if ((selected_frame_info = frame_find_by_id (a_frame_id)) != NULL)
+ {
+ select_frame (selected_frame_info);
}
}
struct current_thread_cleanup
{
ptid_t inferior_ptid;
+ struct frame_id selected_frame_id;
};
static void
{
struct current_thread_cleanup *old = arg;
restore_current_thread (old->inferior_ptid);
+ restore_selected_frame (old->selected_frame_id);
xfree (old);
}
static struct cleanup *
-make_cleanup_restore_current_thread (ptid_t inferior_ptid)
+make_cleanup_restore_current_thread (ptid_t inferior_ptid,
+ struct frame_id a_frame_id)
{
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);
}
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;
if (cmd == NULL || *cmd == '\000')
error (_("Please specify a command following the thread ID list"));
-
- old_chain = make_cleanup_restore_current_thread (inferior_ptid);
+
+ 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 */
strcpy (cmd, saved_cmd); /* Restore exact command used previously */
}
+ if (!ptid_equal (current_ptid, inferior_ptid))
+ thread_has_changed = 1;
+
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);
+
}
static void
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;
if (tidlist == NULL || *tidlist == '\000')
error (_("Please specify a thread ID list"));
if (*cmd == '\000')
error (_("Please specify a command following the thread ID list"));
- old_chain = make_cleanup_restore_current_thread (inferior_ptid);
+ 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);
/* Save a copy of the command in case it is clobbered by
execute_command */
}
}
+ if (!ptid_equal (current_ptid, inferior_ptid))
+ thread_has_changed = 1;
+
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);
}
/* Switch to the specified thread. Will dispatch off to thread_apply_command
add_prefix_cmd ("apply", class_run, thread_apply_command,
_("Apply a command to a list of threads."),
- &thread_apply_list, "apply ", 1, &thread_cmd_list);
+ &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);
projects / deliverable / binutils-gdb.git / blobdiff