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 12 extern "C" __declspec(dllexport) 13 int test_function() { 14 char buff[5] = "aaaa"; 15 16 memset(buff, 'b', 5); 17 if (buff[2] != 'b') 18 return 2; 19 printf("Initial test OK\n"); 20 fflush(0); 21 // CHECK: Initial test OK 22 23 memset(buff, 'c', 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_memset 27 // CHECK-NEXT: test_function {{.*}}dll_intercept_memset.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_memset.cc 30 // CHECK: 'buff' <== Memory access at offset {{.*}} overflows this variable 31 return 0; 32 } 33
