forked from OSchip/llvm-project
85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
// RUN: %clangxx_tsan -O0 %s -o %t
|
|
// RUN: env %env_tsan_opts=stack_trace_format=DEFAULT %deflake %run %t 2>&1 | FileCheck %s
|
|
|
|
// Until I figure out how to make this test work on Linux
|
|
// REQUIRES: system-darwin
|
|
|
|
#include "test.h"
|
|
#include <pthread.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#ifndef __APPLE__
|
|
#include <sys/types.h>
|
|
#endif
|
|
|
|
extern "C" int __tsan_get_alloc_stack(void *addr, void **trace, size_t size,
|
|
int *thread_id, void *os_id);
|
|
|
|
char *mem;
|
|
void alloc_func() { mem = (char *)malloc(10); }
|
|
|
|
void *AllocThread(void *context) {
|
|
uint64_t tid;
|
|
#ifdef __APPLE__
|
|
pthread_threadid_np(NULL, &tid);
|
|
#else
|
|
tid = gettid();
|
|
#endif
|
|
fprintf(stderr, "alloc stack thread os id = 0x%llx\n", tid);
|
|
// CHECK: alloc stack thread os id = [[THREAD_OS_ID:0x[0-9a-f]+]]
|
|
alloc_func();
|
|
return NULL;
|
|
}
|
|
|
|
void *RaceThread(void *context) {
|
|
*mem = 'a';
|
|
barrier_wait(&barrier);
|
|
return NULL;
|
|
}
|
|
|
|
int main() {
|
|
pthread_t t;
|
|
barrier_init(&barrier, 2);
|
|
|
|
pthread_create(&t, NULL, AllocThread, NULL);
|
|
pthread_join(t, NULL);
|
|
|
|
void *trace[100];
|
|
size_t num_frames = 100;
|
|
int thread_id;
|
|
void *thread_os_id;
|
|
num_frames =
|
|
__tsan_get_alloc_stack(mem, trace, num_frames, &thread_id, &thread_os_id);
|
|
|
|
fprintf(stderr, "alloc stack retval %s\n",
|
|
(num_frames > 0 && num_frames < 10) ? "ok" : "");
|
|
// CHECK: alloc stack retval ok
|
|
fprintf(stderr, "thread id = %d\n", thread_id);
|
|
// CHECK: thread id = 1
|
|
fprintf(stderr, "thread os id = 0x%llx\n", (uint64_t)thread_os_id);
|
|
// CHECK: thread os id = [[THREAD_OS_ID]]
|
|
fprintf(stderr, "%p\n", trace[0]);
|
|
// CHECK: [[ALLOC_FRAME_0:0x[0-9a-f]+]]
|
|
fprintf(stderr, "%p\n", trace[1]);
|
|
// CHECK: [[ALLOC_FRAME_1:0x[0-9a-f]+]]
|
|
fprintf(stderr, "%p\n", trace[2]);
|
|
// CHECK: [[ALLOC_FRAME_2:0x[0-9a-f]+]]
|
|
|
|
pthread_create(&t, NULL, RaceThread, NULL);
|
|
barrier_wait(&barrier);
|
|
mem[0] = 'b';
|
|
pthread_join(t, NULL);
|
|
|
|
free(mem);
|
|
|
|
return 0;
|
|
}
|
|
|
|
// CHECK: WARNING: ThreadSanitizer: data race
|
|
// CHECK: Location is heap block of size 10 at {{.*}} allocated by thread T1
|
|
// CHECK: #0 [[ALLOC_FRAME_0]]
|
|
// CHECK: #1 [[ALLOC_FRAME_1]] in alloc_func
|
|
// CHECK: #2 [[ALLOC_FRAME_2]] in AllocThread
|