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| author | Andreas Schwab <schwab@suse.de> | 2014-03-04 13:00:26 +0100 |
|---|---|---|
| committer | Andreas Schwab <schwab@suse.de> | 2014-12-11 12:44:27 +0100 |
| commit | b0a3c1640ab2fb7d16d9b9a8d9c0e524e9cb0001 (patch) | |
| tree | 3e3d5fbf0d33c32e0219d27089b0491b3be42466 /nptl/pthread_mutex_trylock.c | |
| parent | da5bcaa49916fd99c1cd2bfe11923e680056abd7 (diff) | |
| download | glibc-b0a3c1640ab2fb7d16d9b9a8d9c0e524e9cb0001.tar.gz | |
Properly handle forced elision in pthread_mutex_trylock (bug 16657)
Diffstat (limited to 'nptl/pthread_mutex_trylock.c')
| -rw-r--r-- | nptl/pthread_mutex_trylock.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/nptl/pthread_mutex_trylock.c b/nptl/pthread_mutex_trylock.c index 0293d0f629..3cdf9f175c 100644 --- a/nptl/pthread_mutex_trylock.c +++ b/nptl/pthread_mutex_trylock.c @@ -26,8 +26,8 @@ #define lll_trylock_elision(a,t) lll_trylock(a) #endif -#ifndef DO_ELISION -#define DO_ELISION(m) 0 +#ifndef FORCE_ELISION +#define FORCE_ELISION(m, s) #endif /* We don't force elision in trylock, because this can lead to inconsistent @@ -69,7 +69,7 @@ __pthread_mutex_trylock (mutex) break; case PTHREAD_MUTEX_TIMED_ELISION_NP: - elision: + elision: __attribute__((unused)) if (lll_trylock_elision (mutex->__data.__lock, mutex->__data.__elision) != 0) break; @@ -77,8 +77,7 @@ __pthread_mutex_trylock (mutex) return 0; case PTHREAD_MUTEX_TIMED_NP: - if (DO_ELISION (mutex)) - goto elision; + FORCE_ELISION (mutex, goto elision); /*FALL THROUGH*/ case PTHREAD_MUTEX_ADAPTIVE_NP: case PTHREAD_MUTEX_ERRORCHECK_NP: |