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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** 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 Digia. For licensing terms and
** conditions see http://www.qt.io/licensing. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#ifndef UTILS_ELFREADER_H
#define UTILS_ELFREADER_H
#include "utils_global.h"
#include <qbytearray.h>
#include <qendian.h>
#include <qfile.h>
#include <qvector.h>
#include <qcoreapplication.h>
#include <qsharedpointer.h>
namespace Utils {
class ElfMapper;
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 QTCREATOR_UTILS_EXPORT 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;
QVector<ElfSectionHeader> sectionHeaders;
QVector<ElfProgramHeader> programHeaders;
};
class QTCREATOR_UTILS_EXPORT ElfReader
{
Q_DECLARE_TR_FUNCTIONS(Utils::ElfReader)
public:
explicit ElfReader(const QString &binary);
enum Result { Ok, NotElf, Corrupt };
ElfData readHeaders();
QSharedPointer<ElfMapper> readSection(const QByteArray §ionName);
QString errorString() const { return m_errorString; }
QByteArray readCoreName(bool *isCore);
private:
friend class ElfMapper;
Result readIt();
QString m_binary;
QString m_errorString;
ElfData m_elfData;
};
class QTCREATOR_UTILS_EXPORT ElfMapper
{
public:
ElfMapper(const ElfReader *reader);
bool map();
public:
QFile file;
QByteArray raw;
union { const char *start; const uchar *ustart; };
quint64 fdlen;
};
} // namespace Utils
#endif // UTILS_ELFREADER_H
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