FPO.hpp

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/* Copyright 2017 - 2025 R. Thomas
 * Copyright 2017 - 2025 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_PE_FPO_H
#define LIEF_PE_FPO_H
 
#include <vector>
#include "LIEF/iterators.hpp"
#include "LIEF/visibility.h"
#include "LIEF/PE/debug/Debug.hpp"
 
namespace LIEF {
namespace PE {
class LIEF_API FPO : public Debug {
  public:
 
  enum class FRAME_TYPE {
    FPO = 0,
    TRAP = 1,
    TSS = 2,
    NON_FPO = 3,
  };
  struct LIEF_API entry_t {    uint32_t rva = 0;
    uint32_t proc_size = 0;
    uint32_t nb_locals = 0;
    uint32_t parameters_size = 0;
    uint16_t prolog_size = 0;
    uint16_t nb_saved_regs = 0;
    bool use_seh = false;
    bool use_bp = false;
    uint16_t reserved = 0;
    FRAME_TYPE type = FRAME_TYPE::FPO;
 
    std::string to_string() const;
 
    friend LIEF_API
      std::ostream& operator<<(std::ostream& os, const entry_t& entry)
    {
      os << entry.to_string();
      return os;
    }
  };

using entries_t = std::vector<entry_t>;

using it_entries = ref_iterator<entries_t&>;

using it_const_entries = const_ref_iterator<const entries_t&>;

static std::unique_ptr<FPO>

parse(const details::pe_debug& hdr, Section* section, span<uint8_t> payload);

FPO(const details::pe_debug& hdr, Section* section) :

Debug(hdr, section)

{}

FPO(const FPO& other) = default;

FPO& operator=(const FPO& other) = default;

FPO(FPO&&) = default;

FPO& operator=(FPO&& other) = default;

std::unique_ptr<Debug> clone() const override {

return std::unique_ptr<Debug>(new FPO(*this));

}

it_const_entries entries() const {

return entries_;

}