compiler-rt/test/sanitizer_common/TestCases/Posix/create_thread_loop.cpp

   1 // Simple stress test for of pthread_create. Increase arg to use as benchmark.
   2
   3 // RUN: %clangxx -O3 -pthread %s -o %t && %run %t 1000
   4
   5 // Inconsistently fails on Android and can timeout on darwin platforms.
   6 // UNSUPPORTED: android, darwin
   7
   8 #include <pthread.h>
   9 #include <stdlib.h>
  10
  11 extern "C" const char *__asan_default_options() {
  12   // 32bit asan can allocate just a few FakeStacks.
  13   return sizeof(void *) < 8 ? "detect_stack_use_after_return=0" : "";
  14 }
  15
  16 static void *null_func(void *args) { return nullptr; }
  17
  18 int main(int argc, char **argv) {
  19   int n = atoi(argv[1]);
  20   for (int i = 0; i < n; ++i) {
  21     pthread_t thread;
  22     if (pthread_create(&thread, 0, null_func, NULL) == 0)
  23       pthread_detach(thread);
  24   }
  25   return 0;
  26 }