49 lines · c
1// RUN: %clang_asan -O0 %s -o %t2// RUN: not %run %t 2>&1 | FileCheck %s3 4// Since ASan is built with -fomit-frame-pointer, backtrace is not able to5// symbolicate the trace past ASan runtime on i386. (This is fixed in6// latest OS X.)7// REQUIRES: asan-64-bits8 9#include <execinfo.h>10#include <sanitizer/common_interface_defs.h>11#include <stdio.h>12#include <stdlib.h>13 14void death_function() {15 fprintf(stderr, "DEATH CALLBACK\n");16 17 void* callstack[128];18 int i, frames = backtrace(callstack, 128);19 char** strs = backtrace_symbols(callstack, frames);20 for (i = 0; i < frames; ++i) {21 fprintf(stderr, "%s\n", strs[i]);22 }23 free(strs);24 25 fprintf(stderr, "END OF BACKTRACE\n");26}27 28int fault_function() {29 char *x = (char*)malloc(10 * sizeof(char));30 free(x);31 return x[5]; // BOOM32}33 34int main() {35 __sanitizer_set_death_callback(death_function);36 fault_function();37 return 0;38}39 40// CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}41// CHECK: {{READ of size 1 at 0x.* thread T0}}42// CHECK: {{ #0 0x.* in fault_function}}43 44// CHECK: DEATH CALLBACK45// CHECK: death_function46// CHECK: fault_function47// CHECK: main48// CHECK: END OF BACKTRACE49