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| author | Richard Guenther <rguenther@suse.de> | 2012-03-12 14:23:27 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-03-12 14:23:27 +0000 |
| commit | 33e3e24d74dd21373b4059738a04feda26312f1c (patch) | |
| tree | 0b5bc7d4e9657ab185aa593ffce407fded974b61 /libgcc/gthr-posix.h | |
| parent | 24219d389088db7eb34f492e89643a5246ec12a5 (diff) | |
| download | gcc-33e3e24d74dd21373b4059738a04feda26312f1c.zip gcc-33e3e24d74dd21373b4059738a04feda26312f1c.tar.gz gcc-33e3e24d74dd21373b4059738a04feda26312f1c.tar.bz2 | |
re PR gcov-profile/49484 (gcov crash if two(or more) forks happen at the same time)
2012-03-12 Richard Guenther <rguenther@suse.de>
* gthr.h (__GTHREAD_MUTEX_INIT_FUNCTION): Adjust specification.
* gthr-posix.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
(__gthread_mutex_init_function): New function.
* gthr-single.h (__GTHREAD_MUTEX_INIT_FUNCTION): Define.
PR gcov/49484
* libgcov.c: Include gthr.h.
(__gcov_flush_mx): New global variable.
(init_mx, init_mx_once): New functions.
(__gcov_flush): Protect self with a mutex.
(__gcov_fork): Re-initialize mutex after forking.
* unwind-dw2-fde.c: Change condition under which to use
__GTHREAD_MUTEX_INIT_FUNCTION.
From-SVN: r185231
Diffstat (limited to 'libgcc/gthr-posix.h')
| -rw-r--r-- | libgcc/gthr-posix.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libgcc/gthr-posix.h b/libgcc/gthr-posix.h index a935e92..6c9af1a 100644 --- a/libgcc/gthr-posix.h +++ b/libgcc/gthr-posix.h @@ -63,6 +63,7 @@ typedef struct timespec __gthread_time_t; #define __GTHREAD_HAS_COND 1 #define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER +#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function #define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT #if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER) #define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER @@ -754,6 +755,14 @@ __gthread_mutex_init_function (__gthread_mutex_t *__mutex) #endif static inline int +__gthread_mutex_init_function (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(pthread_mutex_init) (__mutex, NULL); + return 0; +} + +static inline int __gthread_mutex_destroy (__gthread_mutex_t *__mutex) { if (__gthread_active_p ()) |