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Commit | Line | Data |
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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 | ||
8 | #include <sanitizer/asan_interface.h> | |
9 | #include <stdio.h> | |
10 | #include <stdlib.h> | |
11 | ||
12 | char *mem; | |
13 | void func1() { | |
14 | mem = (char *)malloc(10); | |
15 | } | |
16 | ||
17 | void func2() { | |
18 | free(mem); | |
19 | } | |
20 | ||
21 | int main() { | |
22 | // Disable stderr buffering. Needed on Windows. | |
23 | setvbuf(stderr, NULL, _IONBF, 0); | |
24 | ||
25 | func1(); | |
26 | func2(); | |
27 | ||
28 | void *trace[100]; | |
29 | size_t num_frames = 100; | |
30 | int thread_id; | |
31 | num_frames = __asan_get_alloc_stack(mem, trace, num_frames, &thread_id); | |
32 | ||
33 | fprintf(stderr, "alloc stack retval %s\n", (num_frames > 0 && num_frames < 10) | |
34 | ? "ok" : ""); | |
35 | // CHECK: alloc stack retval ok | |
36 | fprintf(stderr, "thread id = %d\n", thread_id); | |
37 | // CHECK: thread id = 0 | |
38 | fprintf(stderr, "0x%lx\n", trace[0]); | |
39 | // CHECK: [[ALLOC_FRAME_0:0x[0-9a-f]+]] | |
40 | fprintf(stderr, "0x%lx\n", trace[1]); | |
41 | // CHECK: [[ALLOC_FRAME_1:0x[0-9a-f]+]] | |
42 | ||
43 | num_frames = 100; | |
44 | num_frames = __asan_get_free_stack(mem, trace, num_frames, &thread_id); | |
45 | ||
46 | fprintf(stderr, "free stack retval %s\n", (num_frames > 0 && num_frames < 10) | |
47 | ? "ok" : ""); | |
48 | // CHECK: free stack retval ok | |
49 | fprintf(stderr, "thread id = %d\n", thread_id); | |
50 | // CHECK: thread id = 0 | |
51 | fprintf(stderr, "0x%lx\n", trace[0]); | |
52 | // CHECK: [[FREE_FRAME_0:0x[0-9a-f]+]] | |
53 | fprintf(stderr, "0x%lx\n", trace[1]); | |
54 | // CHECK: [[FREE_FRAME_1:0x[0-9a-f]+]] | |
55 | ||
56 | mem[0] = 'A'; // BOOM | |
57 | ||
58 | // CHECK: ERROR: AddressSanitizer: heap-use-after-free | |
59 | // CHECK: WRITE of size 1 at 0x{{.*}} | |
60 | // CHECK: freed by thread T0 here: | |
61 | // CHECK: #0 [[FREE_FRAME_0]] | |
62 | // CHECK: #1 [[FREE_FRAME_1]] | |
63 | // CHECK: previously allocated by thread T0 here: | |
64 | // CHECK: #0 [[ALLOC_FRAME_0]] | |
65 | // CHECK: #1 [[ALLOC_FRAME_1]] | |
66 | ||
67 | return 0; | |
68 | } |