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 <stdio.h> 6 #include <string.h> 7 8 extern "C" __declspec(dllexport) test_function()9int test_function() { 10 char str[] = "Hello!"; 11 if (6 != strlen(str)) 12 return 1; 13 printf("Initial test OK\n"); 14 fflush(0); 15 // CHECK: Initial test OK 16 17 str[6] = '!'; // Removes '\0' at the end! 18 int len = strlen(str); 19 // CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] 20 // FIXME: Should be READ of size 1, see issue 155. 21 // CHECK: READ of size {{[0-9]+}} at [[ADDR]] thread T0 22 // CHECK-NEXT: {{#0 .*}}strlen 23 // CHECK-NEXT: {{#1 .* test_function .*}}dll_intercept_strlen.cc:[[@LINE-5]] 24 // 25 // CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame 26 // CHECK-NEXT: test_function {{.*}}dll_intercept_strlen.cc: 27 return len > 42; 28 } 29