MachO/Section.hpp

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/* Copyright 2017 - 2024 R. Thomas
 * Copyright 2017 - 2024 Quarkslab
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef LIEF_MACHO_SECTION_H
#define LIEF_MACHO_SECTION_H
#include <string>
#include <vector>
#include <ostream>
#include <memory>
 
#include "LIEF/visibility.h"
 
#include "LIEF/Abstract/Section.hpp"
#include "LIEF/enums.hpp"
 
#include "LIEF/iterators.hpp"
 
namespace LIEF {
class SpanStream;
 
namespace MachO {
 
class BinaryParser;
class SegmentCommand;
class Binary;
class Relocation;
 
namespace details {
struct section_32;
struct section_64;
}
class LIEF_API Section : public LIEF::Section {
 
  friend class BinaryParser;
  friend class Binary;
  friend class SegmentCommand;
 
  public:
  using content_t   = std::vector<uint8_t>;
  using relocations_t = std::vector<std::unique_ptr<Relocation>>;
  using it_relocations = ref_iterator<relocations_t&, Relocation*>;
  using it_const_relocations = const_ref_iterator<const relocations_t&, const Relocation*>;
 
  static constexpr auto FLAGS_MASK = uint32_t(0xffffff00u);
  static constexpr auto TYPE_MASK = uint32_t(0xff);
 
  enum class TYPE: uint64_t  {
    REGULAR                             = 0x00u, 
    ZEROFILL                            = 0x01u, 
    CSTRING_LITERALS                    = 0x02u, 
    S_4BYTE_LITERALS                    = 0x03u, 
    S_8BYTE_LITERALS                    = 0x04u, 
    LITERAL_POINTERS                    = 0x05u, 
    NON_LAZY_SYMBOL_POINTERS            = 0x06u, 
    LAZY_SYMBOL_POINTERS                = 0x07u, 
    SYMBOL_STUBS                        = 0x08u, 
    MOD_INIT_FUNC_POINTERS              = 0x09u, 
    MOD_TERM_FUNC_POINTERS              = 0x0au, 
    COALESCED                           = 0x0bu, 
    GB_ZEROFILL                         = 0x0cu, 
    INTERPOSING                         = 0x0du, 
    S_16BYTE_LITERALS                   = 0x0eu, 
    DTRACE_DOF                          = 0x0fu, 
    LAZY_DYLIB_SYMBOL_POINTERS          = 0x10u, 
    THREAD_LOCAL_REGULAR                = 0x11u, 
    THREAD_LOCAL_ZEROFILL               = 0x12u, 
    THREAD_LOCAL_VARIABLES              = 0x13u, 
    THREAD_LOCAL_VARIABLE_POINTERS      = 0x14u, 
    THREAD_LOCAL_INIT_FUNCTION_POINTERS = 0x15u, 
    INIT_FUNC_OFFSETS                   = 0x16u, 
  };
 
  enum class FLAGS: uint64_t  {
    PURE_INSTRUCTIONS   = 0x80000000u, 
    NO_TOC              = 0x40000000u, 
    STRIP_STATIC_SYMS   = 0x20000000u, 
    NO_DEAD_STRIP       = 0x10000000u, 
    LIVE_SUPPORT        = 0x08000000u, 
    SELF_MODIFYING_CODE = 0x04000000u, 
    DEBUG_INFO          = 0x02000000u, 
 
    SOME_INSTRUCTIONS   = 0x00000400u, 
    EXT_RELOC           = 0x00000200u, 
    LOC_RELOC           = 0x00000100u, 
  };
 
  public:
  Section();
  Section(const details::section_32& section_cmd);
  Section(const details::section_64& section_cmd);
 
  Section(std::string name);
  Section(std::string name, content_t content);
 
  Section& operator=(Section copy);
  Section(const Section& copy);
 
  void swap(Section& other) noexcept;
 
  ~Section() override;
 
  span<const uint8_t> content() const override;
  void content(const content_t& data) override;
  const std::string& segment_name() const;
  uint64_t address() const {
    return virtual_address();
  }

uint32_t alignment() const {

return align_;

}