chromium/components/zucchini/reloc_elf.h

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_ZUCCHINI_RELOC_ELF_H_
#define COMPONENTS_ZUCCHINI_RELOC_ELF_H_

#include <stddef.h>
#include <stdint.h>

#include <optional>
#include <vector>

#include "base/memory/raw_ref.h"
#include "base/numerics/safe_conversions.h"
#include "components/zucchini/address_translator.h"
#include "components/zucchini/buffer_view.h"
#include "components/zucchini/image_utils.h"
#include "components/zucchini/type_elf.h"

namespace zucchini {

// Section dimensions for ELF files, to store relevant dimensions data from
// Elf32_Shdr and Elf64_Shdr, while reducing code duplication from templates.
struct SectionDimensionsElf { … };

// A Generator to visit all reloc structs located in [|lo|, |hi|) (excluding
// truncated strct at |lo| but inlcuding truncated struct at |hi|), and emit
// valid References with |rel_type|. This implements a nested loop unrolled into
// a generator: the outer loop has |cur_section_dimensions_| visiting
// |reloc_section_dims| (sorted by |region.offset|), and the inner loop has
// |cursor_| visiting successive reloc structs within |cur_section_dimensions_|.
class RelocReaderElf : public ReferenceReader { … };

class RelocWriterElf : public ReferenceWriter { … };

}  // namespace zucchini

#endif  // COMPONENTS_ZUCCHINI_RELOC_ELF_H_