mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-16 13:05:36 +00:00
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
|
//===-- asan_globals_win.cc -----------------------------------------------===//
|
||
|
|
//
|
||
|
|
// This file is distributed under the University of Illinois Open Source
|
||
|
|
// License. See LICENSE.TXT for details.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// Global registration code that is linked into every Windows DLL and EXE.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#include "asan_interface_internal.h"
|
||
|
|
#if SANITIZER_WINDOWS
|
||
|
|
|
||
|
|
namespace __asan {
|
||
|
|
|
||
|
|
#pragma section(".ASAN$GA", read, write) // NOLINT
|
||
|
|
#pragma section(".ASAN$GZ", read, write) // NOLINT
|
||
|
|
extern "C" __declspec(allocate(".ASAN$GA"))
|
||
|
|
__asan_global __asan_globals_start = {};
|
||
|
|
extern "C" __declspec(allocate(".ASAN$GZ"))
|
||
|
|
__asan_global __asan_globals_end = {};
|
||
|
|
#pragma comment(linker, "/merge:.ASAN=.data")
|
||
|
|
|
||
|
|
static void call_on_globals(void (*hook)(__asan_global *, uptr)) {
|
||
|
|
__asan_global *start = &__asan_globals_start + 1;
|
||
|
|
__asan_global *end = &__asan_globals_end;
|
||
|
|
uptr bytediff = (uptr)end - (uptr)start;
|
||
|
|
if (bytediff % sizeof(__asan_global) != 0) {
|
||
|
|
#ifdef SANITIZER_DLL_THUNK
|
||
|
|
__debugbreak();
|
||
|
|
#else
|
||
|
|
CHECK("corrupt asan global array");
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
// We know end >= start because the linker sorts the portion after the dollar
|
||
|
|
// sign alphabetically.
|
||
|
|
uptr n = end - start;
|
||
|
|
hook(start, n);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void register_dso_globals() {
|
||
|
|
call_on_globals(&__asan_register_globals);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void unregister_dso_globals() {
|
||
|
|
call_on_globals(&__asan_unregister_globals);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Register globals
|
||
|
|
#pragma section(".CRT$XCU", long, read) // NOLINT
|
||
|
|
#pragma section(".CRT$XTX", long, read) // NOLINT
|
||
|
|
extern "C" __declspec(allocate(".CRT$XCU"))
|
||
|
|
void (*const __asan_dso_reg_hook)() = ®ister_dso_globals;
|
||
|
|
extern "C" __declspec(allocate(".CRT$XTX"))
|
||
|
|
void (*const __asan_dso_unreg_hook)() = &unregister_dso_globals;
|
||
|
|
|
||
|
|
} // namespace __asan
|
||
|
|
|
||
|
|
#endif // SANITIZER_WINDOWS
|