1 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s -check-prefix=CHECK-DIE 2 // RUN: %clangxx_tsan -O1 %s -o %t && %env_tsan_opts=die_after_fork=0 %run %t 2>&1 | FileCheck %s -check-prefix=CHECK-NODIE 3 #include "test.h" 4 #include <errno.h> 5 #include <sys/types.h> 6 #include <sys/wait.h> 7 8 static void *sleeper(void *p) { 9 sleep(1000); // not intended to exit during test 10 return 0; 11 } 12 13 static void *nop(void *p) { 14 return 0; 15 } 16 17 int main() { 18 barrier_init(&barrier, 2); 19 pthread_t th; 20 pthread_create(&th, 0, sleeper, 0); 21 switch (fork()) { 22 default: // parent 23 while (wait(0) < 0) {} 24 break; 25 case 0: // child 26 { 27 pthread_t th2; 28 pthread_create(&th2, 0, nop, 0); 29 exit(0); 30 break; 31 } 32 case -1: // error 33 fprintf(stderr, "failed to fork (%d)\n", errno); 34 exit(1); 35 } 36 fprintf(stderr, "OK\n"); 37 } 38 39 // CHECK-DIE: ThreadSanitizer: starting new threads after multi-threaded fork is not supported 40 // CHECK-DIE: OK 41 42 // CHECK-NODIE-NOT: ThreadSanitizer: starting new threads after multi-threaded fork is not supported 43 // CHECK-NODIE: OK 44 45
