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authorJoel Brobecker <brobecker@gnat.com>2011-10-03 21:38:39 +0000
committerJoel Brobecker <brobecker@gnat.com>2011-10-03 21:38:39 +0000
commit6005b210399595c6b49418a13901fa2941272175 (patch)
tree03615b26e96ae9c6665c8841ad87f20904182c8c
parent75082e8cbbc39096235c59a2ef8f409d0ae33d24 (diff)
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[Ada] Add field "thread-id" in -ada-task-info output
This patch enhances the -ada-task-info command, adding a new field called "thread-id" in the command output. This field provides the ID of the task's corresponding thread (if that information could not be determined, the field is omitted). This field is useful in the context of GDB/MI users, because it allows a quick translation from Ada task to thread, and thus easy use of all the commands that take a --thread argument. gdb/ChangeLog: * ada-tasks.c (print_ada_task_info): Add "thread-id" field in output of -ada-task-info GDB/MI command.
-rw-r--r--gdb/ChangeLog5
-rw-r--r--gdb/ada-tasks.c33
2 files changed, 36 insertions, 2 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index c17728b..191ac2f 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
2011-10-03 Joel Brobecker <brobecker@adacore.com>
+ * ada-tasks.c (print_ada_task_info): Add "thread-id" field
+ in output of -ada-task-info GDB/MI command.
+
+2011-10-03 Joel Brobecker <brobecker@adacore.com>
+
* ada-lang.h (struct inferior): Declare.
(print_ada_task_info): Add declaration.
* ada-tasks.c (print_ada_task_info): Make non-static.
diff --git a/gdb/ada-tasks.c b/gdb/ada-tasks.c
index 7dff8f8..2673fed 100644
--- a/gdb/ada-tasks.c
+++ b/gdb/ada-tasks.c
@@ -938,6 +938,7 @@ print_ada_task_info (struct ui_out *uiout,
int taskno, nb_tasks;
int taskno_arg = 0;
struct cleanup *old_chain;
+ int nb_columns;
if (ada_build_task_list () == 0)
{
@@ -949,14 +950,29 @@ print_ada_task_info (struct ui_out *uiout,
if (arg_str != NULL && arg_str[0] != '\0')
taskno_arg = value_as_long (parse_and_eval (arg_str));
+ if (ui_out_is_mi_like_p (uiout))
+ /* In GDB/MI mode, we want to provide the thread ID corresponding
+ to each task. This allows clients to quickly find the thread
+ associated to any task, which is helpful for commands that
+ take a --thread argument. However, in order to be able to
+ provide that thread ID, the thread list must be up to date
+ first. */
+ target_find_new_threads ();
+
data = get_ada_tasks_inferior_data (inf);
nb_tasks = VEC_length (ada_task_info_s, data->task_list);
- old_chain = make_cleanup_ui_out_table_begin_end (uiout, 7, nb_tasks,
- "tasks");
+ nb_columns = ui_out_is_mi_like_p (uiout) ? 8 : 7;
+ old_chain = make_cleanup_ui_out_table_begin_end (uiout, nb_columns,
+ nb_tasks, "tasks");
ui_out_table_header (uiout, 1, ui_left, "current", "");
ui_out_table_header (uiout, 3, ui_right, "id", "ID");
ui_out_table_header (uiout, 9, ui_right, "task-id", "TID");
+ /* The following column is provided in GDB/MI mode only because
+ it is only really useful in that mode, and also because it
+ allows us to keep the CLI output shorter and more compact. */
+ if (ui_out_is_mi_like_p (uiout))
+ ui_out_table_header (uiout, 4, ui_right, "thread-id", "");
ui_out_table_header (uiout, 4, ui_right, "parent-id", "P-ID");
ui_out_table_header (uiout, 3, ui_right, "priority", "Pri");
ui_out_table_header (uiout, 22, ui_left, "state", "State");
@@ -996,6 +1012,19 @@ print_ada_task_info (struct ui_out *uiout,
/* Print the Task ID. */
ui_out_field_fmt (uiout, "task-id", "%9lx", (long) task_info->task_id);
+ /* Print the associated Thread ID. */
+ if (ui_out_is_mi_like_p (uiout))
+ {
+ const int thread_id = pid_to_thread_id (task_info->ptid);
+
+ if (thread_id != 0)
+ ui_out_field_int (uiout, "thread-id", thread_id);
+ else
+ /* This should never happen unless there is a bug somewhere,
+ but be resilient when that happens. */
+ ui_out_field_skip (uiout, "thread-id");
+ }
+
/* Print the ID of the parent task. */
parent_id = get_task_number_from_id (task_info->parent, inf);
if (parent_id)