diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/c-c++-common/tsan/sleep_sync.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/c-c++-common/tsan/sleep_sync.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/c-c++-common/tsan/sleep_sync.c b/gcc-4.9/gcc/testsuite/c-c++-common/tsan/sleep_sync.c new file mode 100644 index 000000000..44d44554c --- /dev/null +++ b/gcc-4.9/gcc/testsuite/c-c++-common/tsan/sleep_sync.c @@ -0,0 +1,30 @@ +/* { dg-shouldfail "tsan" } */ + +#include <pthread.h> +#include <unistd.h> + +int X = 0; + +void MySleep() { + sleep(1); +} + +void *Thread(void *p) { + MySleep(); // Assume the main thread has done the write. + X = 42; + return 0; +} + +int main() { + pthread_t t; + pthread_create(&t, 0, Thread, 0); + X = 43; + pthread_join(t, 0); + return 0; +} + +/* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r).*} */ +/* { dg-output " As if synchronized via sleep:(\n|\r\n|\r)} */ +/* { dg-output " #0 sleep.*"*} */ +/* { dg-output " #1 MySleep.*"*} */ +/* { dg-output " #2 Thread.*"*} */ |