gdb/gdb-6.8-quit-never-aborts.patch

65 lines
2.6 KiB
Diff

We may abort the process of detaching threads with multiple SIGINTs - which are
being sent during a testcase terminating its child GDB.
Some of the threads may not be properly PTRACE_DETACHed which hurts if they
should have been detached with SIGSTOP (as they are accidentally left running
on the debugger termination).
Index: gdb-7.7.90.20140613/gdb/defs.h
===================================================================
--- gdb-7.7.90.20140613.orig/gdb/defs.h 2014-06-13 23:10:18.876623018 +0200
+++ gdb-7.7.90.20140613/gdb/defs.h 2014-06-13 23:10:52.450660505 +0200
@@ -174,6 +174,7 @@ extern void set_quit_flag (void);
/* Flag that function quit should call quit_force. */
extern volatile int sync_quit_force_run;
+extern int quit_flag_cleanup;
extern int immediate_quit;
extern void quit (void);
Index: gdb-7.7.90.20140613/gdb/top.c
===================================================================
--- gdb-7.7.90.20140613.orig/gdb/top.c 2014-06-13 23:10:15.910619715 +0200
+++ gdb-7.7.90.20140613/gdb/top.c 2014-06-13 23:10:18.877623020 +0200
@@ -1378,7 +1378,9 @@ quit_force (char *args, int from_tty)
if (ex.reason < 0) \
exception_print (gdb_stderr, ex)
- /* We want to handle any quit errors and exit regardless. */
+ /* We want to handle any quit errors and exit regardless but we should never
+ get user-interrupted to properly detach the inferior. */
+ quit_flag_cleanup = 1;
/* Get out of tfind mode, and kill or detach all inferiors. */
DO_TRY
Index: gdb-7.7.90.20140613/gdb/utils.c
===================================================================
--- gdb-7.7.90.20140613.orig/gdb/utils.c 2014-06-13 23:10:18.878623021 +0200
+++ gdb-7.7.90.20140613/gdb/utils.c 2014-06-13 23:10:38.307644652 +0200
@@ -125,6 +125,11 @@ int job_control;
int immediate_quit;
+/* Nonzero means we are already processing the quitting cleanups and we should
+ no longer get aborted. */
+
+int quit_flag_cleanup;
+
/* Nonzero means that strings with character values >0x7F should be printed
as octal escapes. Zero means just print the value (e.g. it's an
international character, and the terminal or window can cope.) */
Index: gdb-7.7.90.20140613/gdb/extension.c
===================================================================
--- gdb-7.7.90.20140613.orig/gdb/extension.c 2014-06-13 03:59:36.000000000 +0200
+++ gdb-7.7.90.20140613/gdb/extension.c 2014-06-13 23:11:32.434704853 +0200
@@ -817,6 +817,9 @@ check_quit_flag (void)
int i, result = 0;
const struct extension_language_defn *extlang;
+ if (quit_flag_cleanup)
+ return 0;
+
ALL_ENABLED_EXTENSION_LANGUAGES (i, extlang)
{
if (extlang->ops->check_quit_flag != NULL)