| // 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 <windows.h> |
| #include <malloc.h> |
| |
| DWORD WINAPI thread_proc(void *context) { |
| int subscript = -1; |
| char stack_buffer[42]; |
| stack_buffer[subscript] = 42; |
| // CHECK: AddressSanitizer: stack-buffer-underflow on address [[ADDR:0x[0-9a-f]+]] |
| // CHECK: WRITE of size 1 at [[ADDR]] thread T1 |
| // CHECK-NEXT: thread_proc{{.*}}dll_thread_stack_array_left_oob.cc:[[@LINE-3]] |
| // |
| // CHECK: Address [[ADDR]] is located in stack of thread T1 at offset [[OFFSET:.*]] in frame |
| // CHECK-NEXT: thread_proc{{.*}}dll_thread_stack_array_left_oob.cc |
| // |
| // CHECK: 'stack_buffer' <== Memory access at offset [[OFFSET]] underflows this variable |
| |
| return 0; |
| } |
| |
| extern "C" __declspec(dllexport) |
| int test_function() { |
| HANDLE thr = CreateThread(NULL, 0, thread_proc, NULL, 0, NULL); |
| // CHECK-LABEL: Thread T1 created by T0 here: |
| // CHECK: test_function{{.*}}dll_thread_stack_array_left_oob.cc:[[@LINE-2]] |
| // CHECK-NEXT: main{{.*}}dll_host.cc |
| // CHECK-LABEL: SUMMARY |
| if (thr == 0) |
| return 1; |
| if (WAIT_OBJECT_0 != WaitForSingleObject(thr, INFINITE)) |
| return 2; |
| return 0; |
| } |
