forked from OSchip/llvm-project
45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
//===-- hwasan_memintrinsics.cpp --------------------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
///
|
|
/// \file
|
|
/// This file is a part of HWAddressSanitizer and contains HWASAN versions of
|
|
/// memset, memcpy and memmove
|
|
///
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include <string.h>
|
|
#include "hwasan.h"
|
|
#include "hwasan_checks.h"
|
|
#include "hwasan_flags.h"
|
|
#include "hwasan_interface_internal.h"
|
|
#include "sanitizer_common/sanitizer_libc.h"
|
|
|
|
using namespace __hwasan;
|
|
|
|
void *__hwasan_memset(void *block, int c, uptr size) {
|
|
CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
|
|
reinterpret_cast<uptr>(block), size);
|
|
return memset(UntagPtr(block), c, size);
|
|
}
|
|
|
|
void *__hwasan_memcpy(void *to, const void *from, uptr size) {
|
|
CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
|
|
reinterpret_cast<uptr>(to), size);
|
|
CheckAddressSized<ErrorAction::Recover, AccessType::Load>(
|
|
reinterpret_cast<uptr>(from), size);
|
|
return memcpy(UntagPtr(to), UntagPtr(from), size);
|
|
}
|
|
|
|
void *__hwasan_memmove(void *to, const void *from, uptr size) {
|
|
CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
|
|
reinterpret_cast<uptr>(to), size);
|
|
CheckAddressSized<ErrorAction::Recover, AccessType::Load>(
|
|
reinterpret_cast<uptr>(from), size);
|
|
return memmove(UntagPtr(to), UntagPtr(from), size);
|
|
}
|