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author | Alexey Samsonov <samsonov@google.com> | 2014-02-14 14:35:48 +0000 |
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committer | Alexey Samsonov <samsonov@google.com> | 2014-02-14 14:35:48 +0000 |
commit | e951fe4eec98de20b9b843f97fec2cca84c48b9c (patch) | |
tree | e5d5d3dbf11683bfde3cfd829ccea8ddbbc0dd0e /test/tsan/free_race.c | |
parent | ba2d0d7b386f38c97eee11749f2fc75449c2b253 (diff) |
Move TSan lit-tests under test/tsan
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@201414 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/tsan/free_race.c')
-rw-r--r-- | test/tsan/free_race.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/test/tsan/free_race.c b/test/tsan/free_race.c new file mode 100644 index 000000000..d1db9fece --- /dev/null +++ b/test/tsan/free_race.c @@ -0,0 +1,49 @@ +// RUN: %clang_tsan -O1 %s -o %t +// RUN: not %t 2>&1 | FileCheck %s --check-prefix=CHECK-NOZUPP +// RUN: TSAN_OPTIONS="suppressions=%s.supp print_suppressions=1" %t 2>&1 | FileCheck %s --check-prefix=CHECK-SUPP + +#include <pthread.h> +#include <stdlib.h> +#include <stdio.h> +#include <stddef.h> +#include <unistd.h> + +int *mem; +pthread_mutex_t mtx; + +void *Thread1(void *x) { + pthread_mutex_lock(&mtx); + free(mem); + pthread_mutex_unlock(&mtx); + return NULL; +} + +void *Thread2(void *x) { + sleep(1); + pthread_mutex_lock(&mtx); + mem[0] = 42; + pthread_mutex_unlock(&mtx); + return NULL; +} + +int main() { + mem = (int*)malloc(100); + pthread_mutex_init(&mtx, 0); + pthread_t t; + pthread_create(&t, NULL, Thread1, NULL); + Thread2(0); + pthread_join(t, NULL); + pthread_mutex_destroy(&mtx); + return 0; +} + +// CHECK-NOZUPP: WARNING: ThreadSanitizer: heap-use-after-free +// CHECK-NOZUPP: Write of size 4 at {{.*}} by main thread{{.*}}: +// CHECK-NOZUPP: #0 Thread2 +// CHECK-NOZUPP: #1 main +// CHECK-NOZUPP: Previous write of size 8 at {{.*}} by thread T1{{.*}}: +// CHECK-NOZUPP: #0 free +// CHECK-NOZUPP: #{{(1|2)}} Thread1 +// CHECK-NOZUPP: SUMMARY: ThreadSanitizer: heap-use-after-free{{.*}}Thread2 +// CHECK-SUPP: ThreadSanitizer: Matched 1 suppressions +// CHECK-SUPP: 1 race:^Thread2$ |