| // RUN: %clang_cl_asan -Od %p/dll_host.cpp -Fe%t |
| // RUN: %clang_cl_asan -LD -Od %s -Fe%t.dll |
| // RUN: not %run %t %t.dll 2>&1 | FileCheck %s |
| |
| // On windows 64-bit, the memchr function is written in assembly and is not |
| // hookable with the interception library. There is not enough padding before |
| // the function and there is a short jump on the second instruction which |
| // doesn't not allow enough space to encode a 64-bit indirect jump. |
| // UNSUPPORTED: x86_64-windows |
| |
| #include <string.h> |
| |
| extern "C" __declspec(dllexport) |
| int test_function() { |
| char buff[6] = "Hello"; |
| |
| memchr(buff, 'z', 7); |
| // CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] |
| // CHECK: READ of size 7 at [[ADDR]] thread T0 |
| // CHECK-NEXT: __asan_wrap_memchr |
| // CHECK-NEXT: memchr |
| // CHECK-NEXT: test_function {{.*}}dll_intercept_memchr.cpp:[[@LINE-5]] |
| // CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame |
| // CHECK-NEXT: test_function {{.*}}dll_intercept_memchr.cpp |
| // CHECK: 'buff'{{.*}} <== Memory access at offset {{.*}} overflows this variable |
| return 0; |
| } |
