blob: 4724c72fc14e49f0815fbb9f1a67979dbbd5ef79 (
plain)
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
|
// RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t 2>&1 | FileCheck %s
// UNSUPPORTED: tvos, watchos
#include "sanitizer_common/sanitizer_ucontext.h"
#include "test.h"
char stack[64 * 1024] __attribute__((aligned(16)));
ucontext_t uc, orig_uc;
void *fiber, *orig_fiber;
int var;
void func() {
var = 1;
__tsan_switch_to_fiber(orig_fiber, __tsan_switch_to_fiber_no_sync);
swapcontext(&uc, &orig_uc);
}
int main() {
orig_fiber = __tsan_get_current_fiber();
fiber = __tsan_create_fiber(0);
getcontext(&uc);
uc.uc_stack.ss_sp = stack;
uc.uc_stack.ss_size = sizeof(stack);
uc.uc_link = 0;
makecontext(&uc, func, 0);
var = 2;
__tsan_switch_to_fiber(fiber, __tsan_switch_to_fiber_no_sync);
swapcontext(&orig_uc, &uc);
__tsan_destroy_fiber(fiber);
fprintf(stderr, "PASS\n");
return 0;
}
// CHECK: WARNING: ThreadSanitizer: data race
// CHECK: PASS
|
