1// Test that stacks of non-main threads are included in the root set.
2// RUN: LSAN_BASE="report_objects=1:use_registers=0"
3// RUN: %clangxx_lsan -pthread %s -o %t
4// RUN: LSAN_OPTIONS=$LSAN_BASE:"use_stacks=0" not %run %t 2>&1 | FileCheck %s
5// RUN: LSAN_OPTIONS=$LSAN_BASE:"use_stacks=1" %run %t 2>&1
6// RUN: LSAN_OPTIONS="" %run %t 2>&1
7
8#include <assert.h>
9#include <pthread.h>
10#include <sched.h>
11#include <stdio.h>
12#include <stdlib.h>
13
14extern "C"
15void *stacks_thread_func(void *arg) {
16  int *sync = reinterpret_cast<int *>(arg);
17  void *p = malloc(1337);
18  fprintf(stderr, "Test alloc: %p.\n", p);
19  fflush(stderr);
20  __sync_fetch_and_xor(sync, 1);
21  while (true)
22    sched_yield();
23}
24
25int main() {
26  int sync = 0;
27  pthread_t thread_id;
28  int res = pthread_create(&thread_id, 0, stacks_thread_func, &sync);
29  assert(res == 0);
30  while (!__sync_fetch_and_xor(&sync, 0))
31    sched_yield();
32  return 0;
33}
34// CHECK: Test alloc: [[ADDR:.*]].
35// CHECK: LeakSanitizer: detected memory leaks
36// CHECK: [[ADDR]] (1337 bytes)
37// CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer:
38