diff options
Diffstat (limited to 'lib/tsan/rtl/tsan_interceptors.cc')
| -rw-r--r-- | lib/tsan/rtl/tsan_interceptors.cc | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/lib/tsan/rtl/tsan_interceptors.cc b/lib/tsan/rtl/tsan_interceptors.cc index df8c5e3df..611a3f7de 100644 --- a/lib/tsan/rtl/tsan_interceptors.cc +++ b/lib/tsan/rtl/tsan_interceptors.cc @@ -1354,10 +1354,15 @@ TSAN_INTERCEPTOR(int, pthread_once, void *o, void (*f)()) { if (o == 0 || f == 0) return errno_EINVAL; atomic_uint32_t *a; - if (!SANITIZER_MAC) - a = static_cast<atomic_uint32_t*>(o); - else // On OS X, pthread_once_t has a header with a long-sized signature. + + if (SANITIZER_MAC) a = static_cast<atomic_uint32_t*>((void *)((char *)o + sizeof(long_t))); + else if (SANITIZER_NETBSD) + a = static_cast<atomic_uint32_t*> + ((void *)((char *)o + __sanitizer::pthread_mutex_t_sz)); + else + a = static_cast<atomic_uint32_t*>(o); + u32 v = atomic_load(a, memory_order_acquire); if (v == 0 && atomic_compare_exchange_strong(a, &v, 1, memory_order_relaxed)) { |