Retro68/Elf2Mac/Section.h

/*
     Copyright 2017 Wolfgang Thaller.

     This file is part of Retro68.

     Retro68 is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.

     Retro68 is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with Retro68.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef SECTION_H
#define SECTION_H

#include <gelf.h>

#include <stdint.h>
#include <string>
#include <vector>

class Object;
class Reloc;
class Symbol;
class RuntimeReloc;

enum class SectionKind
{
    undefined = -1,
    code = 0,
    data,
    bss
};

class Section
{
public:
    Object& theObject;
    std::string name;
    int idx;
    SectionKind kind;
    Elf_Scn *elfsec, *relasec;
    Elf_Data *data;
    GElf_Shdr shdr;
    uint32_t outputBase;
    uint32_t exceptionInfoStart;

    int codeID;

    std::vector<Reloc> relocs;
    std::vector<Symbol*> jtEntries;
    int firstJTEntryIndex;

    Section(Object& object, std::string name, int idx, SectionKind kind, Elf_Scn *elfsec);
    ~Section();
    void SetRela(Elf_Scn *scn);

    uint32_t GetSize();
    std::string GetData();
    std::vector<RuntimeReloc> GetRelocations(bool useOffsets);

    void ScanRelocs();
    void FixRelocs(bool allowDirectCodeRefs);

};


#endif // SECTION_H