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| // RUN: %clang_tsan -O1 %s -lpthread -o %t && %deflake %run %t | FileCheck %s
| // Regression test for
| // https://github.com/google/sanitizers/issues/468
| // When the data race was reported, pthread_atfork() handler used to be
| // executed which caused another race report in the same thread, which resulted
| // in a deadlock.
| #include "test.h"
|
| int glob = 0;
|
| void *worker(void *unused) {
| barrier_wait(&barrier);
| glob++;
| return NULL;
| }
|
| void atfork() {
| fprintf(stderr, "ATFORK\n");
| glob++;
| }
|
| int main() {
| barrier_init(&barrier, 2);
| pthread_atfork(atfork, NULL, NULL);
| pthread_t t;
| pthread_create(&t, NULL, worker, NULL);
| glob++;
| barrier_wait(&barrier);
| pthread_join(t, NULL);
| // CHECK: ThreadSanitizer: data race
| // CHECK-NOT: ATFORK
| return 0;
| }
|
|
