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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c b/gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c new file mode 100644 index 0000000..5dad345 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/c-c++-common/tsan/race_on_mutex.c @@ -0,0 +1,43 @@ +/* { dg-shouldfail "tsan" } */ + +#include <pthread.h> +#include <stdio.h> +#include <stddef.h> +#include <unistd.h> + +pthread_mutex_t Mtx; +int Global; + +void *Thread1(void *x) { + pthread_mutex_init(&Mtx, 0); + pthread_mutex_lock(&Mtx); + Global = 42; + pthread_mutex_unlock(&Mtx); + return NULL; +} + +void *Thread2(void *x) { + sleep(1); + pthread_mutex_lock(&Mtx); + Global = 43; + pthread_mutex_unlock(&Mtx); + return NULL; +} + +int main() { + pthread_t t[2]; + pthread_create(&t[0], NULL, Thread1, NULL); + pthread_create(&t[1], NULL, Thread2, NULL); + pthread_join(t[0], NULL); + pthread_join(t[1], NULL); + pthread_mutex_destroy(&Mtx); + return 0; +} + +/* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r)" } */ +/* { dg-output " Atomic read of size 1 at .* by thread T2:(\n|\r\n|\r)" } */ +/* { dg-output " #0 pthread_mutex_lock.*" } */ +/* { dg-output " #1 Thread2.* .*(race_on_mutex.c:21|\\?{2}:0) (.*)" } */ +/* { dg-output " Previous write of size 1 at .* by thread T1:(\n|\r\n|\r)" } */ +/* { dg-output " #0 pthread_mutex_init .* (.)*" } */ +/* { dg-output " #1 Thread1.* .*(race_on_mutex.c:12|\\?{2}:0) .*" } */ |