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Implement -thread-info.

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* gdbthread.h (print_thread_info): Declare.

        * thread.c (print_thread_info): New, extracted
        from info_threads_command and adjusted to
        work for CLI and MI.
        (info_threads_command): Use print_thread_info.
	* Makefile.in: Update dependencies.

        * mi/mi-cmds.c (mi_cmds): Specify a handler
        for -thread-info.
        * mi/mi-cmds.h (mi_cmd_thread_info): Declare.
        * mi/mi-main.c (mi_cmd_thread_info): New.
        (mi_cmd_list_features): Include 'thread-info'.
This commit is contained in:
Vladimir Prus
2008-03-15 13:53:25 +00:00
parent 7d1e6fb863
commit 8e8901c5c2
9 changed files with 158 additions and 64 deletions
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134
gdb/thread.c
View File

@ -407,6 +407,96 @@ prune_threads (void)
}
}
/* Prints the list of threads and their details on UIOUT.
This is a version of 'info_thread_command' suitable for
use from MI.
If REQESTED_THREAD is not -1, it's the GDB id of the thread
that should be printed. Otherwise, all threads are
printed. */
void
print_thread_info (struct ui_out *uiout, int requested_thread)
{
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;
int current_thread = -1;
/* 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);
make_cleanup_ui_out_list_begin_end (uiout, "threads");
prune_threads ();
target_find_new_threads ();
current_ptid = inferior_ptid;
for (tp = thread_list; tp; tp = tp->next)
{
struct cleanup *chain2;
if (requested_thread != -1 && tp->num != requested_thread)
continue;
chain2 = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
if (ptid_equal (tp->ptid, current_ptid))
{
current_thread = tp->num;
ui_out_text (uiout, "* ");
}
else
ui_out_text (uiout, " ");
ui_out_field_int (uiout, "id", tp->num);
ui_out_text (uiout, " ");
ui_out_field_string (uiout, "target-id", target_tid_to_str (tp->ptid));
extra_info = target_extra_thread_info (tp);
if (extra_info)
{
ui_out_text (uiout, " (");
ui_out_field_string (uiout, "details", extra_info);
ui_out_text (uiout, ")");
}
ui_out_text (uiout, " ");
/* That switch put 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. */
ui_out_is_mi_like_p (uiout),
LOCATION);
do_cleanups (chain2);
}
/* Restores the current thread and the frame selected before
the "info threads" command. */
do_cleanups (old_chain);
if (requested_thread == -1)
{
gdb_assert (current_thread != -1);
if (ui_out_is_mi_like_p (uiout))
ui_out_field_int (uiout, "current-thread-id", current_thread);
}
/* 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)
{
warning (_("Couldn't restore frame in current thread, at frame 0"));
/* 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. */
if (!ui_out_is_mi_like_p (uiout))
print_stack_frame (get_selected_frame (NULL), 0, LOCATION);
}
}
/* Print information about currently known threads
* Note: this has the drawback that it _really_ switches
@ -417,49 +507,7 @@ prune_threads (void)
static void
info_threads_command (char *arg, int from_tty)
{
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;
/* 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;
for (tp = thread_list; tp; tp = tp->next)
{
if (ptid_equal (tp->ptid, current_ptid))
printf_filtered ("* ");
else
printf_filtered (" ");
printf_filtered ("%d %s", tp->num, target_tid_to_str (tp->ptid));
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);
}
/* Restores the current thread and the frame selected before
the "info threads" command. */
do_cleanups (old_chain);
/* 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)
{
warning (_("Couldn't restore frame in current thread, at frame 0"));
print_stack_frame (get_selected_frame (NULL), 0, LOCATION);
}
print_thread_info (uiout, -1);
}
/* Switch from one thread to another. */