forked from OSchip/llvm-project
43 lines
1.0 KiB
C++
43 lines
1.0 KiB
C++
// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s -check-prefix=CHECK-DIE
|
|
// RUN: %clangxx_tsan -O1 %s -o %t && TSAN_OPTIONS="die_after_fork=0" %run %t 2>&1 | FileCheck %s -check-prefix=CHECK-NODIE
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <pthread.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
|
|
static void *sleeper(void *p) {
|
|
sleep(10);
|
|
return 0;
|
|
}
|
|
|
|
int main() {
|
|
pthread_t th;
|
|
pthread_create(&th, 0, sleeper, 0);
|
|
switch (fork()) {
|
|
default: // parent
|
|
while (wait(0) < 0) {}
|
|
break;
|
|
case 0: // child
|
|
{
|
|
pthread_t th2;
|
|
pthread_create(&th2, 0, sleeper, 0);
|
|
exit(0);
|
|
break;
|
|
}
|
|
case -1: // error
|
|
fprintf(stderr, "failed to fork (%d)\n", errno);
|
|
exit(1);
|
|
}
|
|
fprintf(stderr, "OK\n");
|
|
}
|
|
|
|
// CHECK-DIE: ThreadSanitizer: starting new threads after multi-threaded fork is not supported
|
|
// CHECK-DIE: OK
|
|
|
|
// CHECK-NODIE-NOT: ThreadSanitizer: starting new threads after multi-threaded fork is not supported
|
|
// CHECK-NODIE: OK
|
|
|