File indexing completed on 2024-05-12 05:43:30 

0001 /*
0002     Copyright (C) 2015 Volker Krause <vkrause@kde.org>
0003 
0004     This program is free software; you can redistribute it and/or modify it
0005     under the terms of the GNU Library General Public License as published by
0006     the Free Software Foundation; either version 2 of the License, or (at your
0007     option) any later version.
0008 
0009     This program is distributed in the hope that it will be useful, but WITHOUT
0010     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0011     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
0012     License for more details.
0013 
0014     You should have received a copy of the GNU General Public License
0015     along with this program.  If not, see <https://www.gnu.org/licenses/>.
0016 */
0017 
0018 #ifndef ELFRELOCATIONENTRY_H
0019 #define ELFRELOCATIONENTRY_H
0020 
0021 #include <QtGlobal>
0022 #include <cstdint>
0023 
0024 class ElfRelocationSection;
0025 class ElfSymbolTableEntry;
0026 
0027 class ElfRelocationEntry
0028 {
0029 public:
0030     ElfRelocationEntry();
0031     ElfRelocationEntry(const ElfRelocationEntry&);
0032     explicit ElfRelocationEntry(const ElfRelocationSection *section, uint64_t index, bool withAddend);
0033     ~ElfRelocationEntry();
0034 
0035     ElfRelocationEntry& operator=(const ElfRelocationEntry&);
0036 
0037     const ElfRelocationSection* relocationTable() const;
0038 
0039     uint64_t offset() const;
0040     uint32_t symbolIndex() const;
0041     uint32_t type() const;
0042     uint64_t addend() const;
0043 
0044     /** Symbol table entry referenced from this relocation, can be @c nullptr. */
0045     ElfSymbolTableEntry* symbol() const;
0046 
0047     /** Returns the address the relocation actually points too in the end.
0048      *  How this is computed depends on the type of relocation and the platform.
0049      */
0050     uint64_t relocationTarget() const;
0051 
0052 private:
0053     template <typename T> const T* entry() const;
0054     bool is64() const;
0055 
0056     const ElfRelocationSection *m_section;
0057     uint64_t m_index:63;
0058     uint64_t m_withAddend:1;
0059 };
0060 
0061 Q_DECLARE_TYPEINFO(ElfRelocationEntry, Q_MOVABLE_TYPE);
0062 
0063 #endif // ELFRELOCATIONENTRY_H