1 // Clang doesn't support SEH on Windows yet, so for the time being we 2 // build this program in two parts: the code with SEH is built with CL, 3 // the rest is built with Clang. This represents the typical scenario when we 4 // build a large project using "clang-cl -fallback -fsanitize=address". 5 // 6 // RUN: %clang_cl_asan -O0 %p/dll_host.cc -Fe%t 7 // 8 // Check both -GS and -GS- builds: 9 // RUN: cl -LD -c %s -Fo%t.obj 10 // RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll %t.obj 11 // RUN: %run %t %t.dll 12 // 13 // RUN: cl -LD -GS- -c %s -Fo%t.obj 14 // RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll %t.obj 15 // RUN: %run %t %t.dll 16 17 #include <windows.h> 18 #include <assert.h> 19 #include <stdio.h> 20 21 // Should just "#include <sanitizer/asan_interface.h>" when C++ exceptions are 22 // supported and we don't need to use CL. 23 extern "C" bool __asan_address_is_poisoned(void *p); 24 25 void ThrowAndCatch(); 26 27 #if !defined(__clang__) 28 __declspec(noinline) 29 void Throw() { 30 int local, zero = 0; 31 fprintf(stderr, "Throw: %p\n", &local); 32 local = 5 / zero; 33 } 34 35 __declspec(noinline) 36 void ThrowAndCatch() { 37 int local; 38 __try { 39 Throw(); 40 } __except(EXCEPTION_EXECUTE_HANDLER) { 41 fprintf(stderr, "__except: %p\n", &local); 42 } 43 } 44 #else 45 46 extern "C" __declspec(dllexport) 47 int test_function() { 48 char x[32]; 49 fprintf(stderr, "Before: %p poisoned: %d\n", &x, 50 __asan_address_is_poisoned(x + 32)); 51 assert(__asan_address_is_poisoned(x + 32)); 52 ThrowAndCatch(); 53 fprintf(stderr, "After: %p poisoned: %d\n", &x, 54 __asan_address_is_poisoned(x + 32)); 55 // FIXME: Invert this assertion once we fix 56 // https://code.google.com/p/address-sanitizer/issues/detail?id=258 57 assert(!__asan_address_is_poisoned(x + 32)); 58 return 0; 59 } 60 #endif 61
