1//===-- hwasan_memintrinsics.cpp --------------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8///
9/// \file
10/// This file is a part of HWAddressSanitizer and contains HWASAN versions of
11/// memset, memcpy and memmove
12///
13//===----------------------------------------------------------------------===//
14
15#include <string.h>
16#include "hwasan.h"
17#include "hwasan_checks.h"
18#include "hwasan_flags.h"
19#include "hwasan_interface_internal.h"
20#include "sanitizer_common/sanitizer_libc.h"
21
22using namespace __hwasan;
23
24void *__hwasan_memset(void *block, int c, uptr size) {
25  CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
26      reinterpret_cast<uptr>(block), size);
27  return memset(block, c, size);
28}
29
30void *__hwasan_memcpy(void *to, const void *from, uptr size) {
31  CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
32      reinterpret_cast<uptr>(to), size);
33  CheckAddressSized<ErrorAction::Recover, AccessType::Load>(
34      reinterpret_cast<uptr>(from), size);
35  return memcpy(to, from, size);
36}
37
38void *__hwasan_memmove(void *to, const void *from, uptr size) {
39  CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
40      reinterpret_cast<uptr>(to), size);
41  CheckAddressSized<ErrorAction::Recover, AccessType::Load>(
42      reinterpret_cast<uptr>(from), size);
43  return memmove(UntagPtr(to), UntagPtr(from), size);
44}
45