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// Test that it works correctly even with ICF enabled. 6// RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll -link /OPT:REF /OPT:ICF 7// RUN: not %run %t %t.dll 2>&1 | FileCheck %s 8 9#include <stdio.h> 10#include <string.h> 11 12extern "C" __declspec(dllexport) 13int test_function() { 14 char buff1[6] = "Hello", buff2[5]; 15 16 memcpy(buff2, buff1, 5); 17 if (buff1[2] != buff2[2]) 18 return 2; 19 printf("Initial test OK\n"); 20 fflush(0); 21// CHECK: Initial test OK 22 23 memcpy(buff2, buff1, 6); 24// CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] 25// CHECK: WRITE of size 6 at [[ADDR]] thread T0 26// CHECK-NEXT: __asan_{{.*}}memcpy 27// CHECK-NEXT: test_function {{.*}}dll_intercept_memcpy.cc:[[@LINE-4]] 28// CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame 29// CHECK-NEXT: test_function {{.*}}dll_intercept_memcpy.cc 30// CHECK: 'buff2' <== Memory access at offset {{.*}} overflows this variable 31 return 0; 32} 33