| // RUN: %clang_cl_asan -O0 %p/dll_host.cc -Fe%t |
| // RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll |
| // RUN: not %run %t %t.dll 2>&1 | FileCheck %s |
| |
| #include <sanitizer/asan_interface.h> |
| |
| void should_not_crash(volatile char *c) { |
| *c = 42; |
| } |
| |
| void should_crash(volatile char *c) { |
| *c = 42; |
| } |
| |
| extern "C" __declspec(dllexport) |
| int test_function() { |
| char buffer[256]; |
| should_not_crash(&buffer[0]); |
| __asan_poison_memory_region(buffer, 128); |
| should_not_crash(&buffer[192]); |
| __asan_unpoison_memory_region(buffer, 64); |
| should_not_crash(&buffer[32]); |
| |
| should_crash(&buffer[96]); |
| // CHECK: AddressSanitizer: use-after-poison on address [[ADDR:0x[0-9a-f]+]] |
| // CHECK-NEXT: WRITE of size 1 at [[ADDR]] thread T0 |
| // CHECK-NEXT: should_crash{{.*}}\dll_poison_unpoison.cc |
| // CHECK-NEXT: test_function{{.*}}\dll_poison_unpoison.cc:[[@LINE-4]] |
| // CHECK-NEXT: main |
| // |
| // CHECK: [[ADDR]] is located in stack of thread T0 at offset [[OFFSET:.*]] in frame |
| // CHECK-NEXT: test_function{{.*}}\dll_poison_unpoison.cc |
| // CHECK: 'buffer' <== Memory access at offset [[OFFSET]] is inside this variable |
| return 0; |
| } |
