1// RUN: %clang_cl_asan -O0 %p/dll_host.cc -Fe%t
2// RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll
3// RUN: not %run %t %t.dll 2>&1 | FileCheck %s
4
5#include <string.h>
6
7extern "C" __declspec(dllexport)
8int test_function() {
9  char buff[6] = "Hello";
10
11  memchr(buff, 'z', 7);
12// CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
13// CHECK: READ of size 7 at [[ADDR]] thread T0
14// CHECK-NEXT:  __asan_wrap_memchr
15// CHECK-NEXT:  memchr
16// CHECK-NEXT:  test_function {{.*}}dll_intercept_memchr.cc:[[@LINE-5]]
17// CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame
18// CHECK-NEXT:  test_function {{.*}}dll_intercept_memchr.cc
19// CHECK: 'buff' <== Memory access at offset {{.*}} overflows this variable
20  return 0;
21}
22