elf_relocation_section.hh

/* vim: set sw=4 sts=4 et foldmethod=syntax : */

/*
 * Copyright (c) 2007 Tiziano Müller
 * Copyright (c) 2007 David Leverton
 *
 * This file is part of the Paludis package manager. Paludis is free software;
 * you can redistribute it and/or modify it under the terms of the GNU General
 * Public License version 2, as published by the Free Software Foundation.
 *
 * Paludis 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
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef PALUDIS_GUARD_PALUDIS_UTIL_ELF_RELOCATION_SECTION_HH
#define PALUDIS_GUARD_PALUDIS_UTIL_ELF_RELOCATION_SECTION_HH 1

#include <paludis/util/elf_sections.hh>
#include <paludis/util/pimp.hh>
#include <paludis/util/wrapped_forward_iterator-fwd.hh>

#include <iosfwd>

namespace paludis
{
    template <typename ElfType_>
    class RelocationEntry
    {
        private:
            typename ElfType_::Relocation _my_relocation;

        public:
            RelocationEntry(const typename ElfType_::Relocation &);
            ~RelocationEntry();

            typename ElfType_::RelocationOffset get_offset() const
            {
                return _my_relocation.r_offset;
            }

            typename ElfType_::RelocationInfo get_info() const
            {
                return _my_relocation.r_info;
            }
    };

    template <typename ElfType_>
    class RelocationAEntry
    {
        private:
            typename ElfType_::RelocationA _my_relocation;

        public:
            RelocationAEntry(const typename ElfType_::RelocationA &);
            ~RelocationAEntry();

            typename ElfType_::RelocationOffset get_offset() const
            {
                return _my_relocation.r_offset;
            }

            typename ElfType_::RelocationInfo get_info() const
            {
                return _my_relocation.r_info;
            }

            typename ElfType_::RelocationAddend get_addend() const
            {
                return _my_relocation.r_addend;
            }
    };

    template <typename ElfType_>
    struct Relocation
    {
        typedef typename ElfType_::Relocation Type;
        typedef RelocationEntry<ElfType_> Entry;
        const static std::string type_name;
    };

    template <typename ElfType_>
    struct RelocationA
    {
        typedef typename ElfType_::RelocationA Type;
        typedef RelocationAEntry<ElfType_> Entry;
        const static std::string type_name;
    };

    template <typename ElfType_, typename Relocation_>
    struct RelocationSectionRelocationIteratorTag;

    template <typename ElfType_, typename Relocation_>
    class RelocationSection :
        public Section<ElfType_>,
        public paludis::ImplementAcceptMethods<Section<ElfType_>, RelocationSection<ElfType_, Relocation_> >
    {
        private:
            Pimp<RelocationSection> _imp;

        public:
            RelocationSection(typename ElfType_::Word, const typename ElfType_::SectionHeader &, std::istream &, bool);
            virtual ~RelocationSection();

            virtual std::string get_type() const
            {
                return Relocation_::type_name;
            }

            typedef RelocationSectionRelocationIteratorTag<ElfType_, Relocation_> RelocationIteratorTag;
            typedef paludis::WrappedForwardIterator<RelocationIteratorTag, const typename Relocation_::Entry> RelocationIterator;
            RelocationIterator relocation_begin() const;
            RelocationIterator relocation_end() const;
    };
}

#endif