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| // RUN: %clang_asan -O0 %s -o %t
// RUN: not %run %t 2>&1 | FileCheck %s
// Since ASan is built with -fomit-frame-pointer, backtrace is not able to
// symbolicate the trace past ASan runtime on i386. (This is fixed in
// latest OS X.)
// REQUIRES: asan-64-bits
#include <execinfo.h>
#include <sanitizer/common_interface_defs.h>
#include <stdio.h>
#include <stdlib.h>
void death_function() {
fprintf(stderr, "DEATH CALLBACK\n");
void* callstack[128];
int i, frames = backtrace(callstack, 128);
char** strs = backtrace_symbols(callstack, frames);
for (i = 0; i < frames; ++i) {
fprintf(stderr, "%s\n", strs[i]);
}
free(strs);
fprintf(stderr, "END OF BACKTRACE\n");
}
int fault_function() {
char *x = (char*)malloc(10 * sizeof(char));
free(x);
return x[5]; // BOOM
}
int main() {
__sanitizer_set_death_callback(death_function);
fault_function();
return 0;
}
// CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
// CHECK: {{READ of size 1 at 0x.* thread T0}}
// CHECK: {{ #0 0x.* in fault_function}}
// CHECK: DEATH CALLBACK
// CHECK: death_function
// CHECK: fault_function
// CHECK: main
// CHECK: END OF BACKTRACE
|