2010-07-31 Paul Pluzhnikov <ppluzhnikov@google.com>
* linux-thread-db.c (libthread_db_debug): New variable.
(thread_db_find_new_threads_silently): Control verbosity with it.
(try_thread_db_load_1, try_thread_db_load): Likewise.
(find_new_threads_once): Likewise.
(_initialize_thread_db): Set/show it.
doc/ChangeLog
2010-07-31 Paul Pluzhnikov <ppluzhnikov@google.com>
* gdb.texinfo (Threads): Document 'debug libthread-db'.
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index bcb08ba..cfb5163 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,11 @@
+2010-07-31 Paul Pluzhnikov <ppluzhnikov@google.com>
+
+ * linux-thread-db.c (libthread_db_debug): New variable.
+ (thread_db_find_new_threads_silently): Control verbosity with it.
+ (try_thread_db_load_1, try_thread_db_load): Likewise.
+ (find_new_threads_once): Likewise.
+ (_initialize_thread_db): Set/show it.
+
2010-07-31 Jan Kratochvil <jan.kratochvil@redhat.com>
* common/signals.c (signals): Move the content to signals.def.
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index 6253af4..f0f515c 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,7 @@
+2010-07-31 Paul Pluzhnikov <ppluzhnikov@google.com>
+
+ * gdb.texinfo (Threads): Document 'debug libthread-db'.
+
2010-07-30 Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Index Files): Mention gdb-add-index.
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index b49b53e..03b59a3 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -2864,6 +2864,14 @@
@kindex show libthread-db-search-path
@item show libthread-db-search-path
Display current libthread_db search path.
+
+@kindex set debug libthread-db
+@kindex show debug libthread-db
+@cindex debugging @code{libthread_db}
+@item set debug libthread-db
+@itemx show debug libthread-db
+Turns on or off display of @code{libthread_db}-related events.
+Use @code{1} to enable, @code{0} to disable.
@end table
@node Forks
diff --git a/gdb/linux-thread-db.c b/gdb/linux-thread-db.c
index 6cbf6c3..a8abd69 100644
--- a/gdb/linux-thread-db.c
+++ b/gdb/linux-thread-db.c
@@ -75,6 +75,18 @@
static char *libthread_db_search_path;
+/* If non-zero, print details of libthread_db processing. */
+
+static int libthread_db_debug;
+
+static void
+show_libthread_db_debug (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("libthread-db debugging is %s.\n"), value);
+}
+
+
/* If we're running on GNU/Linux, we must explicitly attach to any new
threads. */
@@ -601,7 +613,7 @@
thread_db_find_new_threads_2 (ptid, 1);
}
- if (except.reason < 0 && info_verbose)
+ if (except.reason < 0 && libthread_db_debug)
{
exception_fprintf (gdb_stderr, except,
"Warning: thread_db_find_new_threads_silently: ");
@@ -658,7 +670,7 @@
err = info->td_ta_new_p (&info->proc_handle, &info->thread_agent);
if (err != TD_OK)
{
- if (info_verbose)
+ if (libthread_db_debug)
printf_unfiltered (_("td_ta_new failed: %s\n"),
thread_db_err_str (err));
else
@@ -708,7 +720,7 @@
printf_unfiltered (_("[Thread debugging using libthread_db enabled]\n"));
- if (info_verbose || *libthread_db_search_path)
+ if (libthread_db_debug || *libthread_db_search_path)
{
const char *library;
@@ -745,18 +757,18 @@
void *handle;
struct thread_db_info *info;
- if (info_verbose)
+ if (libthread_db_debug)
printf_unfiltered (_("Trying host libthread_db library: %s.\n"),
library);
handle = dlopen (library, RTLD_NOW);
if (handle == NULL)
{
- if (info_verbose)
+ if (libthread_db_debug)
printf_unfiltered (_("dlopen failed: %s.\n"), dlerror ());
return 0;
}
- if (info_verbose && strchr (library, '/') == NULL)
+ if (libthread_db_debug && strchr (library, '/') == NULL)
{
void *td_init;
@@ -1381,7 +1393,7 @@
TD_THR_ANY_USER_FLAGS);
}
- if (info_verbose)
+ if (libthread_db_debug)
{
if (except.reason < 0)
exception_fprintf (gdb_stderr, except,
@@ -1685,6 +1697,16 @@
NULL,
NULL,
&setlist, &showlist);
+
+ add_setshow_zinteger_cmd ("libthread-db", class_maintenance,
+ &libthread_db_debug, _("\
+Set libthread-db debugging."), _("\
+Show libthread-db debugging."), _("\
+When non-zero, libthread-db debugging is enabled."),
+ NULL,
+ show_libthread_db_debug,
+ &setdebuglist, &showdebuglist);
+
/* Add ourselves to objfile event chain. */
observer_attach_new_objfile (thread_db_new_objfile);
}
