| 1 | // RUN: %clang_asan -O0 %s -o %t |
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| 2 | // RUN: not %run %t 2>&1 | FileCheck %s |
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| 3 | |
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| 4 | // Since ASan is built with -fomit-frame-pointer, backtrace is not able to |
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| 5 | // symbolicate the trace past ASan runtime on i386. (This is fixed in |
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| 6 | // latest OS X.) |
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| 7 | // REQUIRES: asan-64-bits |
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| 8 | |
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| 9 | #include <execinfo.h> |
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| 10 | #include <sanitizer/common_interface_defs.h> |
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| 11 | #include <stdio.h> |
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| 12 | #include <stdlib.h> |
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| 13 | |
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| 14 | void death_function() { |
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| 15 | fprintf(stderr, format: "DEATH CALLBACK\n" ); |
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| 16 | |
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| 17 | void* callstack[128]; |
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| 18 | int i, frames = backtrace(array: callstack, size: 128); |
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| 19 | char** strs = backtrace_symbols(array: callstack, size: frames); |
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| 20 | for (i = 0; i < frames; ++i) { |
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| 21 | fprintf(stderr, format: "%s\n" , strs[i]); |
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| 22 | } |
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| 23 | free(ptr: strs); |
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| 24 | |
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| 25 | fprintf(stderr, format: "END OF BACKTRACE\n" ); |
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| 26 | } |
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| 27 | |
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| 28 | int fault_function() { |
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| 29 | char *x = (char*)malloc(size: 10 * sizeof(char)); |
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| 30 | free(ptr: x); |
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| 31 | return x[5]; // BOOM |
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| 32 | } |
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| 33 | |
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| 34 | int main() { |
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| 35 | __sanitizer_set_death_callback(callback: death_function); |
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| 36 | fault_function(); |
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| 37 | return 0; |
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| 38 | } |
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| 39 | |
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| 40 | // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}} |
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| 41 | // CHECK: {{READ of size 1 at 0x.* thread T0}} |
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| 42 | // CHECK: {{ #0 0x.* in fault_function}} |
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| 43 | |
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| 44 | // CHECK: DEATH CALLBACK |
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| 45 | // CHECK: death_function |
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| 46 | // CHECK: fault_function |
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| 47 | // CHECK: main |
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| 48 | // CHECK: END OF BACKTRACE |
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| 49 | |
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