chromium/components/zucchini/rel32_finder.cc

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "components/zucchini/rel32_finder.h"

#include <algorithm>

#include "base/numerics/safe_conversions.h"

namespace zucchini {

/******** Abs32GapFinder ********/

Abs32GapFinder::Abs32GapFinder(ConstBufferView image,
                               ConstBufferView region,
                               const std::deque<offset_t>& abs32_locations,
                               size_t abs32_width)
    : … { … }

Abs32GapFinder::~Abs32GapFinder() = default;

bool Abs32GapFinder::FindNext() { … }

/******** Rel32Finder ********/

Rel32Finder::Rel32Finder(ConstBufferView image,
                         const AddressTranslator& translator)
    : … { … }

Rel32Finder::~Rel32Finder() = default;

void Rel32Finder::SetRegion(ConstBufferView region) { … }

bool Rel32Finder::FindNext() { … }

void Rel32Finder::Accept() { … }

/******** Rel32FinderIntel ********/

Rel32Finder::NextIterators Rel32FinderIntel::SetResult(
    ConstBufferView::const_iterator cursor,
    uint32_t opcode_size,
    bool can_point_outside_section) { … }

/******** Rel32FinderX86 ********/

Rel32Finder::NextIterators Rel32FinderX86::Scan(ConstBufferView region) { … }

/******** Rel32FinderX64 ********/

Rel32Finder::NextIterators Rel32FinderX64::Scan(ConstBufferView region) { … }

/******** Rel32FinderArm ********/

template <typename ADDR_TYPE>
Rel32FinderArm<ADDR_TYPE>::Rel32FinderArm(ConstBufferView image,
                                          const AddressTranslator& translator)
    : … { … }

template <typename ADDR_TYPE>
Rel32FinderArm<ADDR_TYPE>::~Rel32FinderArm() = default;

template <typename ADDR_TYPE>
Rel32Finder::NextIterators Rel32FinderArm<ADDR_TYPE>::SetResult(
    Result&& result,
    ConstBufferView::const_iterator cursor,
    int instr_size) { … }

// SetResult() for end of scan.
template <typename ADDR_TYPE>
Rel32Finder::NextIterators Rel32FinderArm<ADDR_TYPE>::SetEmptyResult() { … }

/******** Rel32FinderAArch32 ********/

Rel32FinderAArch32::Rel32FinderAArch32(ConstBufferView image,
                                       const AddressTranslator& translator,
                                       bool is_thumb2)
    : … { … }

Rel32FinderAArch32::~Rel32FinderAArch32() = default;

Rel32Finder::NextIterators Rel32FinderAArch32::ScanA32(ConstBufferView region) { … }

Rel32Finder::NextIterators Rel32FinderAArch32::ScanT32(ConstBufferView region) { … }

Rel32Finder::NextIterators Rel32FinderAArch32::Scan(ConstBufferView region) { … }

/******** Rel32FinderAArch64 ********/

Rel32FinderAArch64::Rel32FinderAArch64(ConstBufferView image,
                                       const AddressTranslator& translator)
    : … { … }

Rel32FinderAArch64::~Rel32FinderAArch64() = default;

Rel32Finder::NextIterators Rel32FinderAArch64::Scan(ConstBufferView region) { … }

}  // namespace zucchini