| 1 | // RUN: %clangxx_tsan -O0 %s -o %t |
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| 2 | // RUN: env %env_tsan_opts=stack_trace_format=DEFAULT %deflake %run %t 2>&1 | FileCheck %s |
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| 3 | |
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| 4 | // Until I figure out how to make this test work on Linux |
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| 5 | // REQUIRES: system-darwin |
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| 6 | |
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| 7 | #include "test.h" |
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| 8 | #include <pthread.h> |
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| 9 | #include <stdint.h> |
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| 10 | #include <stdio.h> |
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| 11 | #include <stdlib.h> |
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| 12 | |
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| 13 | #ifndef __APPLE__ |
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| 14 | #include <sys/types.h> |
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| 15 | #endif |
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| 16 | |
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| 17 | extern "C" int __tsan_get_alloc_stack(void *addr, void **trace, size_t size, |
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| 18 | int *thread_id, uint64_t *os_id); |
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| 19 | |
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| 20 | char *mem; |
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| 21 | void alloc_func() { mem = (char *)malloc(size: 10); } |
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| 22 | |
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| 23 | void *AllocThread(void *context) { |
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| 24 | uint64_t tid; |
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| 25 | #ifdef __APPLE__ |
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| 26 | pthread_threadid_np(NULL, &tid); |
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| 27 | #else |
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| 28 | tid = gettid(); |
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| 29 | #endif |
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| 30 | fprintf(stderr, format: "alloc stack thread os id = 0x%llx\n" , tid); |
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| 31 | // CHECK: alloc stack thread os id = [[THREAD_OS_ID:0x[0-9a-f]+]] |
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| 32 | alloc_func(); |
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| 33 | return NULL; |
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| 34 | } |
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| 35 | |
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| 36 | void *RaceThread(void *context) { |
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| 37 | *mem = 'a'; |
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| 38 | barrier_wait(barrier: &barrier); |
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| 39 | return NULL; |
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| 40 | } |
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| 41 | |
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| 42 | int main() { |
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| 43 | pthread_t t; |
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| 44 | barrier_init(barrier: &barrier, count: 2); |
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| 45 | |
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| 46 | pthread_create(newthread: &t, NULL, start_routine: AllocThread, NULL); |
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| 47 | pthread_join(th: t, NULL); |
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| 48 | |
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| 49 | void *trace[100]; |
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| 50 | size_t num_frames = 100; |
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| 51 | int thread_id; |
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| 52 | uint64_t thread_os_id; |
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| 53 | num_frames = |
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| 54 | __tsan_get_alloc_stack(addr: mem, trace, size: num_frames, thread_id: &thread_id, os_id: &thread_os_id); |
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| 55 | |
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| 56 | fprintf(stderr, format: "alloc stack retval %s\n" , |
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| 57 | (num_frames > 0 && num_frames < 10) ? "ok" : "" ); |
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| 58 | // CHECK: alloc stack retval ok |
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| 59 | fprintf(stderr, format: "thread id = %d\n" , thread_id); |
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| 60 | // CHECK: thread id = 1 |
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| 61 | fprintf(stderr, format: "thread os id = 0x%llx\n" , thread_os_id); |
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| 62 | // CHECK: thread os id = [[THREAD_OS_ID]] |
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| 63 | fprintf(stderr, format: "%p\n" , trace[0]); |
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| 64 | // CHECK: 0x{{0*}}[[ALLOC_FRAME_0:[0-9a-f]+]] |
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| 65 | fprintf(stderr, format: "%p\n" , trace[1]); |
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| 66 | // CHECK: 0x{{0*}}[[ALLOC_FRAME_1:[0-9a-f]+]] |
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| 67 | fprintf(stderr, format: "%p\n" , trace[2]); |
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| 68 | // CHECK: 0x{{0*}}[[ALLOC_FRAME_2:[0-9a-f]+]] |
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| 69 | |
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| 70 | pthread_create(newthread: &t, NULL, start_routine: RaceThread, NULL); |
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| 71 | barrier_wait(barrier: &barrier); |
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| 72 | mem[0] = 'b'; |
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| 73 | pthread_join(th: t, NULL); |
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| 74 | |
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| 75 | free(ptr: mem); |
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| 76 | |
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| 77 | return 0; |
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| 78 | } |
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| 79 | |
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| 80 | // CHECK: WARNING: ThreadSanitizer: data race |
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| 81 | // CHECK: Location is heap block of size 10 at {{.*}} allocated by thread T1 |
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| 82 | // CHECK: #0 0x{{0*}}[[ALLOC_FRAME_0]] |
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| 83 | // CHECK: #1 0x{{0*}}[[ALLOC_FRAME_1]] in alloc_func |
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| 84 | // CHECK: #2 0x{{0*}}[[ALLOC_FRAME_2]] in AllocThread |
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| 85 | |
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