llvm/compiler-rt/lib/hwasan/hwasan_checks.h

//===-- hwasan_checks.h -----------------------------------------*- 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
//
//===----------------------------------------------------------------------===//
//
// This file is a part of HWAddressSanitizer.
//
//===----------------------------------------------------------------------===//

#ifndef HWASAN_CHECKS_H
#define HWASAN_CHECKS_H

#include "hwasan_allocator.h"
#include "hwasan_mapping.h"
#include "hwasan_registers.h"
#include "sanitizer_common/sanitizer_common.h"

namespace __hwasan {

enum class ErrorAction { … };
enum class AccessType { … };

// Used when the access size is known.
constexpr unsigned SigTrapEncoding(ErrorAction EA, AccessType AT,
                                   unsigned LogSize) { … }

// Used when the access size varies at runtime.
constexpr unsigned SigTrapEncoding(ErrorAction EA, AccessType AT) { … }

template <ErrorAction EA, AccessType AT, size_t LogSize>
__attribute__((always_inline)) static void SigTrap(uptr p) { … }

// Version with access size which is not power of 2
template <ErrorAction EA, AccessType AT>
__attribute__((always_inline)) static void SigTrap(uptr p, uptr size) { … }

__attribute__((always_inline, nodebug)) static inline uptr ShortTagSize(
    tag_t mem_tag, uptr ptr) { … }

__attribute__((always_inline, nodebug)) static inline bool
PossiblyShortTagMatches(tag_t mem_tag, uptr ptr, uptr sz) { … }

template <ErrorAction EA, AccessType AT, unsigned LogSize>
__attribute__((always_inline, nodebug)) static void CheckAddress(uptr p) { … }

template <ErrorAction EA, AccessType AT>
__attribute__((always_inline, nodebug)) static void CheckAddressSized(uptr p,
                                                                      uptr sz) { … }

}  // end namespace __hwasan

#endif  // HWASAN_CHECKS_H