blob: ca1eb3e7cc4318c3d24e36c71182a729082f034e (
plain) (
blame)
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
54
55
56
57
58
|
// RUN: %clangxx_tsan %s -o %t
// RUN: %deflake %run %t 2>&1 | FileCheck %s
#include <thread>
#import "../test.h"
void *tag;
__attribute__((no_sanitize("thread")))
void ExternalWrite(void *addr) {
__tsan_external_write(addr, __builtin_return_address(0), tag);
}
int main(int argc, char *argv[]) {
barrier_init(&barrier, 2);
tag = __tsan_external_register_tag("HelloWorld");
fprintf(stderr, "Start.\n");
// CHECK: Start.
for (int i = 0; i < 4; i++) {
void *opaque_object = malloc(16);
std::thread t1([opaque_object] {
ExternalWrite(opaque_object);
barrier_wait(&barrier);
});
std::thread t2([opaque_object] {
barrier_wait(&barrier);
ExternalWrite(opaque_object);
});
// CHECK: WARNING: ThreadSanitizer: race on HelloWorld
t1.join();
t2.join();
}
fprintf(stderr, "First phase done.\n");
// CHECK: First phase done.
for (int i = 0; i < 4; i++) {
void *opaque_object = malloc(16);
std::thread t1([opaque_object] {
ExternalWrite(opaque_object);
barrier_wait(&barrier);
});
std::thread t2([opaque_object] {
barrier_wait(&barrier);
ExternalWrite(opaque_object);
});
// CHECK: WARNING: ThreadSanitizer: race on HelloWorld
t1.join();
t2.join();
}
fprintf(stderr, "Second phase done.\n");
// CHECK: Second phase done.
}
// CHECK: ThreadSanitizer: reported 2 warnings
|
