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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef ELFREADER_H
#define ELFREADER_H
#include <QtCore/QList>
#include <QtCore/QString>
#include <QtCore/QtEndian>
QT_BEGIN_NAMESPACE
enum ElfProgramHeaderType
{
Elf_PT_NULL = 0,
Elf_PT_LOAD = 1,
Elf_PT_DYNAMIC = 2,
Elf_PT_INTERP = 3,
Elf_PT_NOTE = 4,
Elf_PT_SHLIB = 5,
Elf_PT_PHDR = 6,
Elf_PT_TLS = 7,
Elf_PT_NUM = 8
};
enum ElfSectionHeaderType
{
Elf_SHT_NULL = 0,
Elf_SHT_PROGBITS = 1,
Elf_SHT_SYMTAB = 2,
Elf_SHT_STRTAB = 3,
Elf_SHT_RELA = 4,
Elf_SHT_HASH = 5,
Elf_SHT_DYNAMIC = 6,
Elf_SHT_NOTE = 7,
Elf_SHT_NOBITS = 8,
Elf_SHT_REL = 9,
Elf_SHT_SHLIB = 10,
Elf_SHT_DYNSYM = 11,
Elf_SHT_INIT_ARRAY = 14,
Elf_SHT_FINI_ARRAY = 15,
Elf_SHT_PREINIT_ARRAY = 16,
Elf_SHT_GROUP = 17,
Elf_SHT_SYMTAB_SHNDX = 18
};
enum ElfEndian
{
Elf_ELFDATANONE = 0,
Elf_ELFDATA2LSB = 1,
Elf_ELFDATA2MSB = 2,
Elf_ELFDATANUM = 3
};
enum ElfClass
{
Elf_ELFCLASS32 = 1,
Elf_ELFCLASS64 = 2
};
enum ElfType
{
Elf_ET_NONE = 0,
Elf_ET_REL = 1,
Elf_ET_EXEC = 2,
Elf_ET_DYN = 3,
Elf_ET_CORE = 4
};
enum ElfMachine
{
Elf_EM_386 = 3,
Elf_EM_ARM = 40,
Elf_EM_X86_64 = 62
};
enum DebugSymbolsType
{
UnknownSymbols = 0, // Unknown.
NoSymbols = 1, // No usable symbols.
LinkedSymbols = 2, // Link to symols available.
BuildIdSymbols = 4, // BuildId available.
PlainSymbols = 8, // Ordinary symbols available.
FastSymbols = 16 // Dwarf index available.
};
class ElfSectionHeader
{
public:
QByteArray name;
quint32 index;
quint32 type;
quint32 flags;
quint64 offset;
quint64 size;
quint64 addr;
};
class ElfProgramHeader
{
public:
quint32 name;
quint32 type;
quint64 offset;
quint64 filesz;
quint64 memsz;
};
class ElfData
{
public:
ElfData() : symbolsType(UnknownSymbols) {}
int indexOf(const QByteArray &name) const;
public:
ElfEndian endian;
ElfType elftype;
ElfMachine elfmachine;
ElfClass elfclass;
quint64 entryPoint;
QByteArray debugLink;
QByteArray buildId;
DebugSymbolsType symbolsType;
QList<ElfSectionHeader> sectionHeaders;
QList<ElfProgramHeader> programHeaders;
};
class ElfReader
{
public:
explicit ElfReader(const QString &binary);
enum Result { Ok, NotElf, Corrupt };
ElfData readHeaders();
QByteArray readSection(const QByteArray §ionName);
QString errorString() const { return m_errorString; }
QByteArray readCoreName(bool *isCore);
QList<QByteArray> dependencies();
private:
friend class ElfMapper;
Result readIt();
QString m_binary;
QString m_errorString;
ElfData m_elfData;
};
QT_END_NAMESPACE
#endif // ELFREADER_H
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