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