| 1 | // RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s |
| 2 | #include <pthread.h> |
| 3 | #include <sanitizer/tsan_interface.h> |
| 4 | #include <stdio.h> |
| 5 | |
| 6 | #if (__APPLE__) |
| 7 | __attribute__((weak)) |
| 8 | #endif |
| 9 | extern "C" const char *__tsan_default_options() { |
| 10 | return "report_bugs=0" ; |
| 11 | } |
| 12 | |
| 13 | int Global; |
| 14 | |
| 15 | void *Thread1(void *x) { |
| 16 | Global = 42; |
| 17 | return NULL; |
| 18 | } |
| 19 | |
| 20 | void *Thread2(void *x) { |
| 21 | Global = 43; |
| 22 | return NULL; |
| 23 | } |
| 24 | |
| 25 | int main() { |
| 26 | pthread_t t[2]; |
| 27 | pthread_create(newthread: &t[0], NULL, start_routine: Thread1, NULL); |
| 28 | pthread_create(newthread: &t[1], NULL, start_routine: Thread2, NULL); |
| 29 | pthread_join(th: t[0], NULL); |
| 30 | pthread_join(th: t[1], NULL); |
| 31 | fprintf(stderr, format: "DONE\n" ); |
| 32 | return 0; |
| 33 | } |
| 34 | |
| 35 | // CHECK-NOT: WARNING: ThreadSanitizer: data race |
| 36 | // CHECK: DONE |
| 37 | |