diff options
| -rw-r--r-- | compiler-rt/lib/sanitizer_common/sanitizer_linux.cc | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc index 204b0d18ac2..9dbdd21ac65 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc +++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc @@ -117,6 +117,9 @@ struct kernel_timeval { // <linux/futex.h> is broken on some linux distributions. const int FUTEX_WAIT = 0; const int FUTEX_WAKE = 1; +const int FUTEX_PRIVATE_FLAG = 128; +const int FUTEX_WAIT_PRIVATE = FUTEX_WAIT | FUTEX_PRIVATE_FLAG; +const int FUTEX_WAKE_PRIVATE = FUTEX_WAKE | FUTEX_PRIVATE_FLAG; #endif // SANITIZER_LINUX // Are we using 32-bit or 64-bit Linux syscalls? @@ -686,7 +689,8 @@ void BlockingMutex::Lock() { #elif SANITIZER_NETBSD sched_yield(); /* No userspace futex-like synchronization */ #else - internal_syscall(SYSCALL(futex), (uptr)m, FUTEX_WAIT, MtxSleeping, 0, 0, 0); + internal_syscall(SYSCALL(futex), (uptr)m, FUTEX_WAIT_PRIVATE, MtxSleeping, + 0, 0, 0); #endif } } @@ -701,7 +705,7 @@ void BlockingMutex::Unlock() { #elif SANITIZER_NETBSD /* No userspace futex-like synchronization */ #else - internal_syscall(SYSCALL(futex), (uptr)m, FUTEX_WAKE, 1, 0, 0, 0); + internal_syscall(SYSCALL(futex), (uptr)m, FUTEX_WAKE_PRIVATE, 1, 0, 0, 0); #endif } } |
