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 
14 extern "C"
stacks_thread_func(void * arg)15 void *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 
main()25 int 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