43 lines · cpp
1// Main executable is uninstrumented, but linked to ASan runtime.2// Regression test for https://code.google.com/p/address-sanitizer/issues/detail?id=357.3 4// RUN: %clangxx -g -O0 %s -c -o %t.o5// RUN: %clangxx_asan -g -O0 %t.o -o %t6// RUN: %run %t 2>&1 | FileCheck %s7 8#include <stdio.h>9#include <stdlib.h>10#include <string.h>11 12#include "sanitizer/asan_interface.h"13#if __has_feature(ptrauth_calls)14# include <ptrauth.h>15#endif16 17void test_shadow(char *p, size_t size) {18 fprintf(stderr, "p = %p\n", p);19 char *q = (char *)__asan_region_is_poisoned(p, size);20 fprintf(stderr, "=%zd=\n", q ? q - p : -1);21}22 23int main(int argc, char *argv[]) {24 char *p = (char *)malloc(10000);25 test_shadow(p, 100);26 free(p);27 // CHECK: =-1=28 29 char *mainptr;30#if __has_feature(ptrauth_calls)31 mainptr = (char *)ptrauth_strip((void *)&main, ptrauth_key_return_address);32#else33 mainptr = (char *)&main;34#endif35 test_shadow(mainptr, 1);36 // CHECK: =-1=37 38 test_shadow((char *)&p, 1);39 // CHECK: =-1=40 41 return 0;42}43