//===-- 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); } |