1*0b57cec5SDimitry Andric //===-- hwasan_memintrinsics.cpp --------------------------------*- C++ -*-===// 2*0b57cec5SDimitry Andric // 3*0b57cec5SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0b57cec5SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0b57cec5SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0b57cec5SDimitry Andric // 7*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 8*0b57cec5SDimitry Andric /// 9*0b57cec5SDimitry Andric /// \file 10*0b57cec5SDimitry Andric /// This file is a part of HWAddressSanitizer and contains HWASAN versions of 11*0b57cec5SDimitry Andric /// memset, memcpy and memmove 12*0b57cec5SDimitry Andric /// 13*0b57cec5SDimitry Andric //===----------------------------------------------------------------------===// 14*0b57cec5SDimitry Andric 15*0b57cec5SDimitry Andric #include <string.h> 16*0b57cec5SDimitry Andric #include "hwasan.h" 17*0b57cec5SDimitry Andric #include "hwasan_checks.h" 18*0b57cec5SDimitry Andric #include "hwasan_flags.h" 19*0b57cec5SDimitry Andric #include "hwasan_interface_internal.h" 20*0b57cec5SDimitry Andric #include "sanitizer_common/sanitizer_libc.h" 21*0b57cec5SDimitry Andric 22*0b57cec5SDimitry Andric using namespace __hwasan; 23*0b57cec5SDimitry Andric 24*0b57cec5SDimitry Andric void *__hwasan_memset(void *block, int c, uptr size) { 25*0b57cec5SDimitry Andric CheckAddressSized<ErrorAction::Recover, AccessType::Store>( 26*0b57cec5SDimitry Andric reinterpret_cast<uptr>(block), size); 27*0b57cec5SDimitry Andric return memset(UntagPtr(block), c, size); 28*0b57cec5SDimitry Andric } 29*0b57cec5SDimitry Andric 30*0b57cec5SDimitry Andric void *__hwasan_memcpy(void *to, const void *from, uptr size) { 31*0b57cec5SDimitry Andric CheckAddressSized<ErrorAction::Recover, AccessType::Store>( 32*0b57cec5SDimitry Andric reinterpret_cast<uptr>(to), size); 33*0b57cec5SDimitry Andric CheckAddressSized<ErrorAction::Recover, AccessType::Load>( 34*0b57cec5SDimitry Andric reinterpret_cast<uptr>(from), size); 35*0b57cec5SDimitry Andric return memcpy(UntagPtr(to), UntagPtr(from), size); 36*0b57cec5SDimitry Andric } 37*0b57cec5SDimitry Andric 38*0b57cec5SDimitry Andric void *__hwasan_memmove(void *to, const void *from, uptr size) { 39*0b57cec5SDimitry Andric CheckAddressSized<ErrorAction::Recover, AccessType::Store>( 40*0b57cec5SDimitry Andric reinterpret_cast<uptr>(to), size); 41*0b57cec5SDimitry Andric CheckAddressSized<ErrorAction::Recover, AccessType::Load>( 42*0b57cec5SDimitry Andric reinterpret_cast<uptr>(from), size); 43*0b57cec5SDimitry Andric return memmove(UntagPtr(to), UntagPtr(from), size); 44*0b57cec5SDimitry Andric } 45