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-rw-r--r--gdb/thread.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/gdb/thread.c b/gdb/thread.c
index 6c792ec..ebaed1c 100644
--- a/gdb/thread.c
+++ b/gdb/thread.c
@@ -49,6 +49,19 @@
#include "inline-frame.h"
#include "stack.h"
+/* See gdbthread.h. */
+
+bool debug_threads = false;
+
+/* Implement 'show debug threads'. */
+
+static void
+show_debug_threads (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("Thread debugging is \"%s\".\n"), value);
+}
+
/* Definition of struct thread_info exported to gdbthread.h. */
/* Prototypes for local functions. */
@@ -234,6 +247,9 @@ new_thread (struct inferior *inf, ptid_t ptid)
{
thread_info *tp = new thread_info (inf, ptid);
+ threads_debug_printf ("creating a new thread object, inferior %d, ptid %s",
+ inf->num, ptid.to_string ().c_str ());
+
inf->thread_list.push_back (*tp);
/* A thread with this ptid should not exist in the map yet. */
@@ -251,6 +267,10 @@ add_thread_silent (process_stratum_target *targ, ptid_t ptid)
inferior *inf = find_inferior_ptid (targ, ptid);
+ threads_debug_printf ("add thread to inferior %d, ptid %s, target %s",
+ inf->num, ptid.to_string ().c_str (),
+ targ->shortname ());
+
/* We may have an old thread with the same id in the thread list.
If we do, it must be dead, otherwise we wouldn't be adding a new
thread with the same id. The OS is reusing this id --- delete
@@ -302,6 +322,13 @@ thread_info::thread_info (struct inferior *inf_, ptid_t ptid_)
/* See gdbthread.h. */
+thread_info::~thread_info ()
+{
+ threads_debug_printf ("thread %s", this->ptid.to_string ().c_str ());
+}
+
+/* See gdbthread.h. */
+
bool
thread_info::deletable () const
{
@@ -434,6 +461,9 @@ delete_thread_1 (thread_info *thr, bool silent)
{
gdb_assert (thr != nullptr);
+ threads_debug_printf ("deleting thread %s, silent = %d",
+ thr->ptid.to_string ().c_str (), silent);
+
set_thread_exited (thr, silent);
if (!thr->deletable ())
@@ -2192,6 +2222,14 @@ Show printing of thread events (such as thread start and exit)."), NULL,
show_print_thread_events,
&setprintlist, &showprintlist);
+ add_setshow_boolean_cmd ("threads", class_maintenance, &debug_threads, _("\
+Set thread debugging."), _("\
+Show thread debugging."), _("\
+When on messages about thread creation and deletion are printed."),
+ nullptr,
+ show_debug_threads,
+ &setdebuglist, &showdebuglist);
+
create_internalvar_type_lazy ("_thread", &thread_funcs, NULL);
create_internalvar_type_lazy ("_gthread", &gthread_funcs, NULL);
}