diff options
Diffstat (limited to 'test/asan/TestCases/Windows')
-rw-r--r-- | test/asan/TestCases/Windows/tls_init.cc | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/test/asan/TestCases/Windows/tls_init.cc b/test/asan/TestCases/Windows/tls_init.cc new file mode 100644 index 000000000..c29c4a377 --- /dev/null +++ b/test/asan/TestCases/Windows/tls_init.cc @@ -0,0 +1,51 @@ +// RUN: %clang_cl_asan %s -Fe%t.exe +// RUN: %run %t.exe | FileCheck %s + +// CHECK: my_thread_callback +// CHECK: ran_before_main: 1 + +#include <windows.h> +#include <stdio.h> +#include <string.h> + +#pragma comment (lib, "dbghelp") + +static bool ran_before_main = false; + +extern "C" void __asan_init(void); + +static void NTAPI /*__attribute__((no_sanitize_address))*/ +my_thread_callback(PVOID module, DWORD reason, PVOID reserved) { + ran_before_main = true; + static const char str[] = "my_thread_callback\n"; + + // Fail the test if we aren't called for the expected reason or we can't write + // stdout. + if (reason != DLL_PROCESS_ATTACH) + return; + HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE); + if (!out || out == INVALID_HANDLE_VALUE) + return; + + DWORD written = 0; + WriteFile(out, &str[0], sizeof(str), &written, NULL); +} + +extern "C" { +#pragma const_seg(".CRT$XLC") +extern const PIMAGE_TLS_CALLBACK p_thread_callback; +const PIMAGE_TLS_CALLBACK p_thread_callback = my_thread_callback; +#pragma const_seg() +} + +#ifdef _WIN64 +#pragma comment(linker, "/INCLUDE:_tls_used") +#pragma comment(linker, "/INCLUDE:p_thread_callback") +#else +#pragma comment(linker, "/INCLUDE:__tls_used") +#pragma comment(linker, "/INCLUDE:_p_thread_callback") +#endif + +int main() { + printf("ran_before_main: %d\n", ran_before_main); +} |