33 lines · cpp
1// RUN: %clangxx_hwasan %s -o %t2// RUN: %env_hwasan_opts=halt_on_error=0 not %run %t 2>&1 | FileCheck %s --implicit-check-not=RETURN_FROM_TEST --check-prefixes=CHECK,RECOVER3// RUN: %env_hwasan_opts=halt_on_error=1 not %run %t 2>&1 | FileCheck %s --implicit-check-not=RETURN_FROM_TEST4 5#include <sanitizer/hwasan_interface.h>6#include <stdio.h>7#include <stdlib.h>8#include <string.h>9#include <unistd.h>10 11__attribute__((no_sanitize("hwaddress"))) void12ForceCallInterceptor(void *p, int c, size_t size) {13 memset(p, c, size) == nullptr;14}15 16int main(int argc, char **argv) {17 __hwasan_enable_allocator_tagging();18 char a[] = {static_cast<char>(argc), 2, 3, 4};19 int size = sizeof(a);20 char *volatile p = (char *)malloc(size);21 void *volatile p2 = p;22 for (int i = 0; p2 == p; p2 = __hwasan_tag_pointer(p, ++i)) {23 }24 ForceCallInterceptor(p2, 0, size);25 free(p);26 fprintf(stderr, "RETURN_FROM_TEST\n");27 return 0;28 // CHECK: HWAddressSanitizer: tag-mismatch on address29 // CHECK: WRITE of size 430 // CHECK: #{{[[:digit:]]+}} 0x{{[[:xdigit:]]+}} in main {{.*}}memset-recover.cpp:[[@LINE-28]]31 // RECOVER: RETURN_FROM_TEST32}33