]>
Commit | Line | Data |
---|---|---|
92a42be0 SL |
1 | // Check that the stack trace debugging API works and returns correct |
2 | // malloc and free stacks. | |
3 | // RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s | |
4 | ||
5 | // FIXME: Figure out why allocation/free stack traces may be too short on ARM. | |
6 | // REQUIRES: stable-runtime | |
7 | ||
7cac9316 XL |
8 | #if _WIN64 |
9 | #define PTR "%llx" | |
10 | #else | |
11 | #define PTR "%lx" | |
12 | #endif | |
13 | ||
92a42be0 SL |
14 | #include <sanitizer/asan_interface.h> |
15 | #include <stdio.h> | |
16 | #include <stdlib.h> | |
17 | ||
18 | char *mem; | |
19 | void func1() { | |
20 | mem = (char *)malloc(10); | |
21 | } | |
22 | ||
23 | void func2() { | |
24 | free(mem); | |
25 | } | |
26 | ||
27 | int main() { | |
28 | // Disable stderr buffering. Needed on Windows. | |
29 | setvbuf(stderr, NULL, _IONBF, 0); | |
30 | ||
31 | func1(); | |
32 | func2(); | |
33 | ||
34 | void *trace[100]; | |
35 | size_t num_frames = 100; | |
36 | int thread_id; | |
37 | num_frames = __asan_get_alloc_stack(mem, trace, num_frames, &thread_id); | |
38 | ||
39 | fprintf(stderr, "alloc stack retval %s\n", (num_frames > 0 && num_frames < 10) | |
40 | ? "ok" : ""); | |
41 | // CHECK: alloc stack retval ok | |
42 | fprintf(stderr, "thread id = %d\n", thread_id); | |
43 | // CHECK: thread id = 0 | |
7cac9316 | 44 | fprintf(stderr, "0x" PTR "\n", trace[0]); |
92a42be0 | 45 | // CHECK: [[ALLOC_FRAME_0:0x[0-9a-f]+]] |
7cac9316 | 46 | fprintf(stderr, "0x" PTR "\n", trace[1]); |
92a42be0 SL |
47 | // CHECK: [[ALLOC_FRAME_1:0x[0-9a-f]+]] |
48 | ||
49 | num_frames = 100; | |
50 | num_frames = __asan_get_free_stack(mem, trace, num_frames, &thread_id); | |
51 | ||
52 | fprintf(stderr, "free stack retval %s\n", (num_frames > 0 && num_frames < 10) | |
53 | ? "ok" : ""); | |
54 | // CHECK: free stack retval ok | |
55 | fprintf(stderr, "thread id = %d\n", thread_id); | |
56 | // CHECK: thread id = 0 | |
7cac9316 | 57 | fprintf(stderr, "0x" PTR "\n", trace[0]); |
92a42be0 | 58 | // CHECK: [[FREE_FRAME_0:0x[0-9a-f]+]] |
7cac9316 | 59 | fprintf(stderr, "0x" PTR "\n", trace[1]); |
92a42be0 SL |
60 | // CHECK: [[FREE_FRAME_1:0x[0-9a-f]+]] |
61 | ||
62 | mem[0] = 'A'; // BOOM | |
63 | ||
64 | // CHECK: ERROR: AddressSanitizer: heap-use-after-free | |
65 | // CHECK: WRITE of size 1 at 0x{{.*}} | |
66 | // CHECK: freed by thread T0 here: | |
67 | // CHECK: #0 [[FREE_FRAME_0]] | |
68 | // CHECK: #1 [[FREE_FRAME_1]] | |
69 | // CHECK: previously allocated by thread T0 here: | |
70 | // CHECK: #0 [[ALLOC_FRAME_0]] | |
71 | // CHECK: #1 [[ALLOC_FRAME_1]] | |
72 | ||
73 | return 0; | |
74 | } |