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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#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 symbols 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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