1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
// Test that Thread objects are reused.
// RUN: %clangxx_hwasan -mllvm -hwasan-globals=0 -mllvm -hwasan-instrument-stack=0 %s -o %t && %env_hwasan_opts=verbose_threads=1 %run %t 2>&1 | FileCheck %s
#include <assert.h>
#include <fcntl.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sanitizer/hwasan_interface.h>
pthread_barrier_t bar;
void *threadfn(void *) {
pthread_barrier_wait(&bar);
return nullptr;
}
void start_stop_threads() {
constexpr int N = 2;
pthread_t threads[N];
pthread_barrier_init(&bar, nullptr, N + 1);
for (auto &t : threads)
pthread_create(&t, nullptr, threadfn, nullptr);
pthread_barrier_wait(&bar);
for (auto &t : threads)
pthread_join(t, nullptr);
pthread_barrier_destroy(&bar);
}
int main() {
// Cut off initial threads.
// CHECK: === test start ===
fprintf(stderr, "=== test start ===\n");
// CHECK: Creating : T{{[0-9]+}} [[A:0x[0-9a-f]+]] stack:
// CHECK: Creating : T{{[0-9]+}} [[B:0x[0-9a-f]+]] stack:
start_stop_threads();
// CHECK-DAG: Creating : T{{[0-9]+}} [[A]] stack:
// CHECK-DAG: Creating : T{{[0-9]+}} [[B]] stack:
start_stop_threads();
// CHECK-DAG: Creating : T{{[0-9]+}} [[A]] stack:
// CHECK-DAG: Creating : T{{[0-9]+}} [[B]] stack:
start_stop_threads();
return 0;
}
|
