#include "ObjectFileELF.h"
#include <algorithm>
#include <cassert>
#include <optional>
#include <unordered_map>
#include "lldb/Core/Module.h"
#include "lldb/Core/ModuleSpec.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/Progress.h"
#include "lldb/Core/Section.h"
#include "lldb/Host/FileSystem.h"
#include "lldb/Host/LZMA.h"
#include "lldb/Symbol/DWARFCallFrameInfo.h"
#include "lldb/Symbol/SymbolContext.h"
#include "lldb/Target/SectionLoadList.h"
#include "lldb/Target/Target.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/DataBufferHeap.h"
#include "lldb/Utility/FileSpecList.h"
#include "lldb/Utility/LLDBLog.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/RangeMap.h"
#include "lldb/Utility/Status.h"
#include "lldb/Utility/Stream.h"
#include "lldb/Utility/Timer.h"
#include "llvm/ADT/IntervalMap.h"
#include "llvm/ADT/PointerUnion.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/Object/Decompressor.h"
#include "llvm/Support/ARMBuildAttributes.h"
#include "llvm/Support/CRC.h"
#include "llvm/Support/FormatVariadic.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/MipsABIFlags.h"

Macros
#define	CASE_AND_STREAM(s, def, width)

#define	_MAKE_OSABI_CASE(x)

#define	STO_MIPS_ISA (3 << 6)

#define	STO_MICROMIPS (2 << 6)

#define	IS_MICROMIPS(ST_OTHER) (((ST_OTHER)&STO_MIPS_ISA) == STO_MICROMIPS)

Functions
static user_id_t	SegmentID (size_t PHdrIndex)

static uint32_t	mipsVariantFromElfFlags (const elf::ELFHeader &header)

static uint32_t	riscvVariantFromElfFlags (const elf::ELFHeader &header)

static uint32_t	ppc64VariantFromElfFlags (const elf::ELFHeader &header)

static uint32_t	loongarchVariantFromElfFlags (const elf::ELFHeader &header)

static uint32_t	subTypeFromElfHeader (const elf::ELFHeader &header)

static uint32_t	calc_crc32 (uint32_t init, const DataExtractor &data)

static const char *	OSABIAsCString (unsigned char osabi_byte)

static bool	GetOsFromOSABI (unsigned char osabi_byte, llvm::Triple::OSType &ostype)

static SectionType	GetSectionTypeFromName (llvm::StringRef Name)

static uint32_t	GetTargetByteSize (SectionType Type, const ArchSpec &arch)

static Permissions	GetPermissions (const ELFSectionHeader &H)

static Permissions	GetPermissions (const ELFProgramHeader &H)

static char	FindArmAarch64MappingSymbol (const char *symbol_name)

static std::pair< uint64_t, uint64_t >	GetPltEntrySizeAndOffset (const ELFSectionHeader rel_hdr, const ELFSectionHeader plt_hdr)

static unsigned	ParsePLTRelocations (Symtab symbol_table, user_id_t start_id, unsigned rel_type, const ELFHeader hdr, const ELFSectionHeader rel_hdr, const ELFSectionHeader plt_hdr, const ELFSectionHeader *sym_hdr, const lldb::SectionSP &plt_section_sp, DataExtractor &rel_data, DataExtractor &symtab_data, DataExtractor &strtab_data)

static void	ApplyELF64ABS64Relocation (Symtab symtab, ELFRelocation &rel, DataExtractor &debug_data, Section rel_section)

static void	ApplyELF64ABS32Relocation (Symtab symtab, ELFRelocation &rel, DataExtractor &debug_data, Section rel_section, bool is_signed)

static void	ApplyELF32ABS32RelRelocation (Symtab symtab, ELFRelocation &rel, DataExtractor &debug_data, Section rel_section)

Variables
static const char *const	LLDB_NT_OWNER_FREEBSD = "FreeBSD"

static const char *const	LLDB_NT_OWNER_GNU = "GNU"

static const char *const	LLDB_NT_OWNER_NETBSD = "NetBSD"

static const char *const	LLDB_NT_OWNER_NETBSDCORE = "NetBSD-CORE"

static const char *const	LLDB_NT_OWNER_OPENBSD = "OpenBSD"

static const char *const	LLDB_NT_OWNER_ANDROID = "Android"

static const char *const	LLDB_NT_OWNER_CORE = "CORE"

static const char *const	LLDB_NT_OWNER_LINUX = "LINUX"

static const elf_word	LLDB_NT_FREEBSD_ABI_TAG = 0x01

static const elf_word	LLDB_NT_FREEBSD_ABI_SIZE = 4

static const elf_word	LLDB_NT_GNU_ABI_TAG = 0x01

static const elf_word	LLDB_NT_GNU_ABI_SIZE = 16

static const elf_word	LLDB_NT_GNU_BUILD_ID_TAG = 0x03

static const elf_word	LLDB_NT_NETBSD_IDENT_TAG = 1

static const elf_word	LLDB_NT_NETBSD_IDENT_DESCSZ = 4

static const elf_word	LLDB_NT_NETBSD_IDENT_NAMESZ = 7

static const elf_word	LLDB_NT_NETBSD_PROCINFO = 1

static const elf_word	LLDB_NT_GNU_ABI_OS_LINUX = 0x00

static const elf_word	LLDB_NT_GNU_ABI_OS_HURD = 0x01

static const elf_word	LLDB_NT_GNU_ABI_OS_SOLARIS = 0x02

Macro Definition Documentation

◆ _MAKE_OSABI_CASE

#define _MAKE_OSABI_CASE ( x )

Value:

case x: \

return #x

◆ CASE_AND_STREAM

#define CASE_AND_STREAM	(	s,
		def,
		width
	)

Value:

  case def:                                                                    \
    s->Printf("%-*s", width, #def);                                            \
    break;

Definition at line 48 of file ObjectFileELF.cpp.

◆ IS_MICROMIPS

#define IS_MICROMIPS ( ST_OTHER ) (((ST_OTHER)&STO_MIPS_ISA) == STO_MICROMIPS)

Definition at line 2027 of file ObjectFileELF.cpp.

◆ STO_MICROMIPS

#define STO_MICROMIPS (2 << 6)

Definition at line 2026 of file ObjectFileELF.cpp.

◆ STO_MIPS_ISA

#define STO_MIPS_ISA (3 << 6)

Definition at line 2025 of file ObjectFileELF.cpp.

Function Documentation

◆ ApplyELF32ABS32RelRelocation()

static void ApplyELF32ABS32RelRelocation	(	Symtab *	symtab,
		ELFRelocation &	rel,
		DataExtractor &	debug_data,
		Section *	rel_section
	)

static

Definition at line 2669 of file ObjectFileELF.cpp.

References lldb_private::Symtab::FindSymbolByID(), lldb_private::Symbol::GetAddressRef(), lldb_private::WritableDataBuffer::GetBytes(), lldb_private::ConstString::GetCString(), lldb_private::Address::GetFileAddress(), lldb_private::Section::GetFileOffset(), lldb_private::GetLog(), lldb_private::Symbol::GetName(), lldb_private::DataExtractor::GetSharedDataBuffer(), LLDB_INVALID_ADDRESS, and LLDB_LOGF.

Referenced by ObjectFileELF::ApplyRelocations().

◆ ApplyELF64ABS32Relocation()

static void ApplyELF64ABS32Relocation	(	Symtab *	symtab,
		ELFRelocation &	rel,
		DataExtractor &	debug_data,
		Section *	rel_section,
		bool	is_signed
	)

static

Definition at line 2643 of file ObjectFileELF.cpp.

References lldb_private::Symtab::FindSymbolByID(), lldb_private::Symbol::GetAddressRef(), lldb_private::WritableDataBuffer::GetBytes(), lldb_private::Address::GetFileAddress(), lldb_private::Section::GetFileOffset(), lldb_private::GetLog(), lldb_private::DataExtractor::GetSharedDataBuffer(), INT32_MAX, LLDB_LOGF, and UINT32_MAX.

Referenced by ObjectFileELF::ApplyRelocations().

◆ ApplyELF64ABS64Relocation()

static void ApplyELF64ABS64Relocation	(	Symtab *	symtab,
		ELFRelocation &	rel,
		DataExtractor &	debug_data,
		Section *	rel_section
	)

static

Definition at line 2625 of file ObjectFileELF.cpp.

References lldb_private::Symtab::FindSymbolByID(), lldb_private::Symbol::GetAddressRef(), lldb_private::WritableDataBuffer::GetBytes(), lldb_private::Address::GetFileAddress(), lldb_private::Section::GetFileOffset(), and lldb_private::DataExtractor::GetSharedDataBuffer().

Referenced by ObjectFileELF::ApplyRelocations().

◆ calc_crc32()

static uint32_t calc_crc32	(	uint32_t	init,
		const DataExtractor &	data
	)

static

Definition at line 449 of file ObjectFileELF.cpp.

References lldb_private::DataExtractor::GetByteSize(), and lldb_private::DataExtractor::GetDataStart().

Referenced by ObjectFileELF::CalculateELFNotesSegmentsCRC32(), ObjectFileELF::GetModuleSpecifications(), and ObjectFileELF::GetUUID().

◆ FindArmAarch64MappingSymbol()

static char FindArmAarch64MappingSymbol ( const char * symbol_name )

static

Definition at line 2012 of file ObjectFileELF.cpp.

Referenced by ObjectFileELF::ParseSymbols().

◆ GetOsFromOSABI()

static bool GetOsFromOSABI	(	unsigned char	osabi_byte,
		llvm::Triple::OSType &	ostype
	)

static

Definition at line 515 of file ObjectFileELF.cpp.

Referenced by ObjectFileELF::GetModuleSpecifications(), and ObjectFileELF::GetSectionHeaderInfo().

◆ GetPermissions() [1/2]

static Permissions GetPermissions ( const ELFProgramHeader & H )

static

Definition at line 1738 of file ObjectFileELF.cpp.

References elf::ELFProgramHeader::p_flags.

◆ GetPermissions() [2/2]

static Permissions GetPermissions ( const ELFSectionHeader & H )

static

Definition at line 1727 of file ObjectFileELF.cpp.

References elf::ELFSectionHeader::sh_flags.

Referenced by ObjectFileELF::CreateSections().

◆ GetPltEntrySizeAndOffset()

static std::pair< uint64_t, uint64_t > GetPltEntrySizeAndOffset	(	const ELFSectionHeader *	rel_hdr,
		const ELFSectionHeader *	plt_hdr
	)

static

Definition at line 2457 of file ObjectFileELF.cpp.

References elf::ELFSectionHeader::sh_addralign, elf::ELFSectionHeader::sh_entsize, and elf::ELFSectionHeader::sh_size.

Referenced by ParsePLTRelocations().

◆ GetSectionTypeFromName()

static SectionType GetSectionTypeFromName ( llvm::StringRef Name )

static

Definition at line 1648 of file ObjectFileELF.cpp.

Referenced by lldb_private::wasm::ObjectFileWasm::CreateSections(), and ObjectFileELF::GetSectionType().

◆ GetTargetByteSize()

static uint32_t GetTargetByteSize	(	SectionType	Type,
		const ArchSpec &	arch
	)

static

Definition at line 1715 of file ObjectFileELF.cpp.

References lldb::eSectionTypeCode, lldb::eSectionTypeData, lldb::eSectionTypeZeroFill, lldb_private::ArchSpec::GetCodeByteSize(), and lldb_private::ArchSpec::GetDataByteSize().

Referenced by ObjectFileELF::CreateSections().

◆ loongarchVariantFromElfFlags()

static uint32_t loongarchVariantFromElfFlags ( const elf::ELFHeader & header )

static

Definition at line 324 of file ObjectFileELF.cpp.

References elf::ELFHeader::e_ident, lldb_private::ArchSpec::eLoongArchSubType_loongarch32, lldb_private::ArchSpec::eLoongArchSubType_loongarch64, and lldb_private::ArchSpec::eLoongArchSubType_unknown.

Referenced by subTypeFromElfHeader().

◆ mipsVariantFromElfFlags()

static uint32_t mipsVariantFromElfFlags ( const elf::ELFHeader & header )

static

Definition at line 251 of file ObjectFileELF.cpp.

Referenced by subTypeFromElfHeader().

◆ OSABIAsCString()

static const char * OSABIAsCString ( unsigned char osabi_byte )

static

Definition at line 478 of file ObjectFileELF.cpp.

References _MAKE_OSABI_CASE.

Referenced by ObjectFileELF::GetModuleSpecifications().

◆ ParsePLTRelocations()

static unsigned ParsePLTRelocations	(	Symtab *	symbol_table,
		user_id_t	start_id,
		unsigned	rel_type,
		const ELFHeader *	hdr,
		const ELFSectionHeader *	rel_hdr,
		const ELFSectionHeader *	plt_hdr,
		const ELFSectionHeader *	sym_hdr,
		const lldb::SectionSP &	plt_section_sp,
		DataExtractor &	rel_data,
		DataExtractor &	symtab_data,
		DataExtractor &	strtab_data
	)