lldb_private::DataExtractor Class Reference

An data extractor class. More...

#include "lldb/Core/DataExtractor.h"

Inheritance diagram for lldb_private::DataExtractor:

Public Types
enum	Type {   TypeUInt8 , TypeChar , TypeUInt16 , TypeUInt32 ,   TypeUInt64 , TypePointer , TypeULEB128 , TypeSLEB128 }
	Type enumerations used in the dump routines. More...

Public Member Functions
	DataExtractor ()
	Default constructor.
	DataExtractor (const void *data, lldb::offset_t data_length, lldb::ByteOrder byte_order, uint32_t addr_size, uint32_t target_byte_size=1)
	Construct with a buffer that is owned by the caller.
	DataExtractor (const lldb::DataBufferSP &data_sp, lldb::ByteOrder byte_order, uint32_t addr_size, uint32_t target_byte_size=1)
	Construct with shared data.
	DataExtractor (const DataExtractor &data, lldb::offset_t offset, lldb::offset_t length, uint32_t target_byte_size=1)
	Construct with a subset of data.
	DataExtractor (const DataExtractor &rhs)
	Copy constructor.
const DataExtractor &	operator= (const DataExtractor &rhs)
	Assignment operator.
	DataExtractor (DataExtractor &&rhs)=default
	Move constructor and move assignment operators to complete the rule of 5.
DataExtractor &	operator= (DataExtractor &&rhs)=default
virtual	~DataExtractor ()
	Destructor.
uint32_t	getTargetByteSize () const
void	Clear ()
	Clears the object state.
lldb::offset_t	PutToLog (Log *log, lldb::offset_t offset, lldb::offset_t length, uint64_t base_addr, uint32_t num_per_line, Type type) const
	Dumps the binary data as type objects to stream s (or to Log() if s is nullptr) starting offset bytes into the data and stopping after dumping length bytes.
size_t	ExtractBytes (lldb::offset_t offset, lldb::offset_t length, lldb::ByteOrder dst_byte_order, void *dst) const
	Extract an arbitrary number of bytes in the specified byte order.
uint64_t	GetAddress (lldb::offset_t *offset_ptr) const
	Extract an address from *offset_ptr.
uint64_t	GetAddress_unchecked (lldb::offset_t *offset_ptr) const
uint32_t	GetAddressByteSize () const
	Get the current address size.
uint64_t	GetByteSize () const
	Get the number of bytes contained in this object.
const char *	GetCStr (lldb::offset_t *offset_ptr) const
	Extract a C string from *offset_ptr.
const char *	GetCStr (lldb::offset_t *offset_ptr, lldb::offset_t len) const
	Extract a C string from *offset_ptr with field size len.
const void *	GetData (lldb::offset_t *offset_ptr, lldb::offset_t length) const
	Extract length bytes from *offset_ptr.
lldb::offset_t	CopyData (lldb::offset_t offset, lldb::offset_t length, void *dst) const
	Copy length bytes from *offset, without swapping bytes.
lldb::offset_t	CopyByteOrderedData (lldb::offset_t src_offset, lldb::offset_t src_len, void *dst, lldb::offset_t dst_len, lldb::ByteOrder dst_byte_order) const
	Copy dst_len bytes from *offset_ptr and ensure the copied data is treated as a value that can be swapped to match the specified byte order.
const uint8_t *	GetDataEnd () const
	Get the data end pointer.
size_t	GetSharedDataOffset () const
	Get the shared data offset.
const uint8_t *	GetDataStart () const
	Get the data start pointer.
float	GetFloat (lldb::offset_t *offset_ptr) const
	Extract a float from *offset_ptr.
double	GetDouble (lldb::offset_t *offset_ptr) const
long double	GetLongDouble (lldb::offset_t *offset_ptr) const
uint32_t	GetMaxU32 (lldb::offset_t *offset_ptr, size_t byte_size) const
	Extract an integer of size byte_size from *offset_ptr.
uint64_t	GetMaxU64 (lldb::offset_t *offset_ptr, size_t byte_size) const
	Extract an unsigned integer of size byte_size from *offset_ptr.
uint64_t	GetMaxU64_unchecked (lldb::offset_t *offset_ptr, size_t byte_size) const
int64_t	GetMaxS64 (lldb::offset_t *offset_ptr, size_t byte_size) const
	Extract an signed integer of size byte_size from *offset_ptr.
uint64_t	GetMaxU64Bitfield (lldb::offset_t *offset_ptr, size_t size, uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset) const
	Extract an unsigned integer of size byte_size from *offset_ptr, then extract the bitfield from this value if bitfield_bit_size is non-zero.
int64_t	GetMaxS64Bitfield (lldb::offset_t *offset_ptr, size_t size, uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset) const
	Extract an signed integer of size size from *offset_ptr, then extract and sign-extend the bitfield from this value if bitfield_bit_size is non-zero.
lldb::ByteOrder	GetByteOrder () const
	Get the current byte order value.
uint8_t	GetU8 (lldb::offset_t *offset_ptr) const
	Extract a uint8_t value from *offset_ptr.
uint8_t	GetU8_unchecked (lldb::offset_t *offset_ptr) const
uint16_t	GetU16_unchecked (lldb::offset_t *offset_ptr) const
uint32_t	GetU32_unchecked (lldb::offset_t *offset_ptr) const
uint64_t	GetU64_unchecked (lldb::offset_t *offset_ptr) const
void *	GetU8 (lldb::offset_t *offset_ptr, void *dst, uint32_t count) const
	Extract count uint8_t values from *offset_ptr.
uint16_t	GetU16 (lldb::offset_t *offset_ptr) const
	Extract a uint16_t value from *offset_ptr.
void *	GetU16 (lldb::offset_t *offset_ptr, void *dst, uint32_t count) const
	Extract count uint16_t values from *offset_ptr.
uint32_t	GetU32 (lldb::offset_t *offset_ptr) const
	Extract a uint32_t value from *offset_ptr.
void *	GetU32 (lldb::offset_t *offset_ptr, void *dst, uint32_t count) const
	Extract count uint32_t values from *offset_ptr.
uint64_t	GetU64 (lldb::offset_t *offset_ptr) const
	Extract a uint64_t value from *offset_ptr.
void *	GetU64 (lldb::offset_t *offset_ptr, void *dst, uint32_t count) const
	Extract count uint64_t values from *offset_ptr.
int64_t	GetSLEB128 (lldb::offset_t *offset_ptr) const
	Extract a signed LEB128 value from *offset_ptr.
uint64_t	GetULEB128 (lldb::offset_t *offset_ptr) const
	Extract a unsigned LEB128 value from *offset_ptr.
lldb::DataBufferSP &	GetSharedDataBuffer ()
const char *	PeekCStr (lldb::offset_t offset) const
	Peek at a C string at offset.
const uint8_t *	PeekData (lldb::offset_t offset, lldb::offset_t length) const
	Peek at a bytes at offset.
void	SetAddressByteSize (uint32_t addr_size)
	Set the address byte size.
lldb::offset_t	SetData (const void *bytes, lldb::offset_t length, lldb::ByteOrder byte_order)
	Set data with a buffer that is caller owned.
lldb::offset_t	SetData (const DataExtractor &data, lldb::offset_t offset, lldb::offset_t length)
	Adopt a subset of data.
lldb::offset_t	SetData (const lldb::DataBufferSP &data_sp, lldb::offset_t offset=0, lldb::offset_t length=LLDB_INVALID_OFFSET)
	Adopt a subset of shared data in data_sp.
void	SetByteOrder (lldb::ByteOrder byte_order)
	Set the byte_order value.
uint32_t	Skip_LEB128 (lldb::offset_t *offset_ptr) const
	Skip an LEB128 number at *offset_ptr.
bool	ValidOffset (lldb::offset_t offset) const
	Test the validity of offset.
bool	ValidOffsetForDataOfSize (lldb::offset_t offset, lldb::offset_t length) const
	Test the availability of length bytes of data from offset.
size_t	Copy (DataExtractor &dest_data) const
bool	Append (DataExtractor &rhs)
bool	Append (void *bytes, lldb::offset_t length)
lldb::offset_t	BytesLeft (lldb::offset_t offset) const
void	Checksum (llvm::SmallVectorImpl< uint8_t > &dest, uint64_t max_data=0)
llvm::ArrayRef< uint8_t >	GetData () const
llvm::DataExtractor	GetAsLLVM () const

Protected Member Functions
template<typename T >
T	Get (lldb::offset_t *offset_ptr, T fail_value) const

Protected Attributes
const uint8_t *	m_start = nullptr
	A pointer to the first byte of data.
const uint8_t *	m_end
	A pointer to the byte that is past the end of the data.
lldb::ByteOrder	m_byte_order
	The byte order of the data we are extracting from.
uint32_t	m_addr_size
	The address size to use when extracting addresses.
lldb::DataBufferSP	m_data_sp
	The shared pointer to data that can be shared among multiple instances.
uint32_t	m_target_byte_size = 1
	Making it const would require implementation of move assignment operator.

Detailed Description

An data extractor class.

DataExtractor is a class that can extract data (swapping if needed) from a data buffer. The data buffer can be caller owned, or can be shared data that can be shared between multiple DataExtractor instances. Multiple DataExtractor objects can share the same data, yet extract values in different address sizes and byte order modes. Each object can have a unique position in the shared data and extract data from different offsets.

See also

DataBuffer

Definition at line 48 of file DataExtractor.h.

Member Enumeration Documentation

Type

enum lldb_private::DataExtractor::Type

Type enumerations used in the dump routines.

Enumerator
TypeUInt8	Format output as unsigned 8 bit integers.
TypeChar	Format output as characters.
TypeUInt16	Format output as unsigned 16 bit integers.
TypeUInt32	Format output as unsigned 32 bit integers.
TypeUInt64	Format output as unsigned 64 bit integers.
TypePointer	Format output as pointers.
TypeULEB128	Format output as ULEB128 numbers.
TypeSLEB128	Format output as SLEB128 numbers.

Definition at line 52 of file DataExtractor.h.

Constructor & Destructor Documentation

DataExtractor() [1/6]

DataExtractor::DataExtractor

(

)

Default constructor.

Initialize all members to a default empty state.

Definition at line 123 of file DataExtractor.cpp.

DataExtractor() [2/6]

DataExtractor::DataExtractor	(	const void *	data,
		lldb::offset_t	data_length,
		lldb::ByteOrder	byte_order,
		uint32_t	addr_size,
		uint32_t	target_byte_size = 1
	)

Construct with a buffer that is owned by the caller.

This constructor allows us to use data that is owned by the caller. The data must stay around as long as this object is valid.

Parameters

[in]	data	A pointer to caller owned data.
[in]	data_length	The length in bytes of data.
[in]	byte_order	A byte order of the data that we are extracting from.
[in]	addr_size	A new address byte size value.
[in]	target_byte_size	A size of a target byte in 8-bit host bytes

Definition at line 129 of file DataExtractor.cpp.

DataExtractor() [3/6]

DataExtractor::DataExtractor	(	const lldb::DataBufferSP &	data_sp,
		lldb::ByteOrder	byte_order,
		uint32_t	addr_size,
		uint32_t	target_byte_size = 1
	)

Construct with shared data.

Copies the data shared pointer which adds a reference to the contained in data_sp. The shared data reference is reference counted to ensure the data lives as long as anyone still has a valid shared pointer to the data in data_sp.

Parameters

[in]	data_sp	A shared pointer to data.
[in]	byte_order	A byte order of the data that we are extracting from.
[in]	addr_size	A new address byte size value.
[in]	target_byte_size	A size of a target byte in 8-bit host bytes

Definition at line 143 of file DataExtractor.cpp.

References SetData().

DataExtractor() [4/6]

DataExtractor::DataExtractor	(	const DataExtractor &	data,
		lldb::offset_t	offset,
		lldb::offset_t	length,
		uint32_t	target_byte_size = 1
	)

Construct with a subset of data.

Initialize this object with a subset of the data bytes in data. If data contains shared data, then a reference to the shared data will be added to ensure the shared data stays around as long as any objects have references to the shared data. The byte order value and the address size settings are copied from data. If offset is not a valid offset in data, then no reference to the shared data will be added. If there are not length bytes available in data starting at offset, the length will be truncated to contain as many bytes as possible.

Parameters

[in]	data	Another DataExtractor object that contains data.
[in]	offset	The offset into data at which the subset starts.
[in]	length	The length in bytes of the subset of data.
[in]	target_byte_size	A size of a target byte in 8-bit host bytes

Definition at line 157 of file DataExtractor.cpp.

References GetByteSize(), m_addr_size, SetData(), and ValidOffset().

DataExtractor() [5/6]

DataExtractor::DataExtractor ( const DataExtractor &  rhs )

explicit

Copy constructor.

The copy constructor is explicit as otherwise it is easy to make unintended modification of a local copy instead of a caller's instance. Also a needless copy of the m_data_sp shared pointer is/ expensive.

Definition at line 170 of file DataExtractor.cpp.

References m_addr_size.

DataExtractor() [6/6]

lldb_private::DataExtractor::DataExtractor ( DataExtractor &&  rhs )

default

Move constructor and move assignment operators to complete the rule of 5.

They would get deleted as we already defined those of rule of 3.

~DataExtractor()

DataExtractor::~DataExtractor ( )

virtualdefault

Destructor.

If this object contains a valid shared data reference, the reference count on the data will be decremented, and if zero, the data will be freed.

Member Function Documentation

Append() [1/2]

bool DataExtractor::Append

(

DataExtractor &

rhs

)

Definition at line 975 of file DataExtractor.cpp.

References Copy(), GetByteOrder(), lldb_private::WritableDataBuffer::GetBytes(), GetByteSize(), GetDataStart(), and SetData().

Append() [2/2]

bool DataExtractor::Append	(	void *	bytes,
		lldb::offset_t	length
	)

Definition at line 1003 of file DataExtractor.cpp.

References lldb_private::WritableDataBuffer::GetBytes(), GetByteSize(), GetDataStart(), and SetData().

BytesLeft()

lldb::offset_t lldb_private::DataExtractor::BytesLeft ( lldb::offset_t  offset ) const

inline

Definition at line 974 of file DataExtractor.h.

References GetByteSize().

Referenced by InstructionLLVMC::Decode(), Evaluate_DW_OP_entry_value(), lldb_private::SymbolFileCTF::ParseHeader(), and ValidOffsetForDataOfSize().

Checksum()

void DataExtractor::Checksum	(	llvm::SmallVectorImpl< uint8_t > &	dest,
		uint64_t	max_data = 0
	)

Definition at line 1030 of file DataExtractor.cpp.

References GetByteSize(), and GetDataStart().

Referenced by lldb_private::ValueObject::UpdateValueIfNeeded().

Clear()

void DataExtractor::Clear

(

)

Clears the object state.

Clears the object contents back to a default invalid state, and release any references to shared data that this object may contain.

Definition at line 193 of file DataExtractor.cpp.

References lldb_private::endian::InlHostByteOrder(), m_addr_size, m_byte_order, m_data_sp, m_end, and m_start.

Referenced by CommunicationKDP::CheckForPacket(), lldb_private::Opcode::GetData(), lldb_private::Scalar::GetData(), lldb_private::Value::GetValueAsData(), lldb_private::plugin::dwarf::SymbolFileDWARF::LoadSectionData(), ObjectContainerBSDArchive::ParseHeader(), ObjectContainerUniversalMachO::ParseHeader(), lldb_private::ObjectFileJIT::ReadSectionData(), ObjectFileELF::ReadSectionData(), CommunicationKDP::SendRequestAndGetReply(), and CommunicationKDP::WaitForPacketWithTimeoutMicroSecondsNoLock().

Copy()

size_t DataExtractor::Copy

(

DataExtractor &

dest_data

)

const

Definition at line 963 of file DataExtractor.cpp.

References GetByteSize(), m_data_sp, m_start, and SetData().

Referenced by Append().

CopyByteOrderedData()

lldb::offset_t DataExtractor::CopyByteOrderedData	(	lldb::offset_t	src_offset,
		lldb::offset_t	src_len,
		void *	dst,
		lldb::offset_t	dst_len,
		lldb::ByteOrder	dst_byte_order
	)		const

Copy dst_len bytes from *offset_ptr and ensure the copied data is treated as a value that can be swapped to match the specified byte order.

For values that are larger than the supported integer sizes, this function can be used to extract data in a specified byte order. It can also be used to copy a smaller integer value from to a larger value. The extra bytes left over will be padded correctly according to the byte order of this object and the dst_byte_order. This can be very handy when say copying a partial data value into a register.

Parameters

[in]	src_offset	The offset into this data from which to start copying an endian entity
[in]	src_len	The length of the endian data to copy from this object into the dst object
[out]	dst	The buffer where to place the endian data. The data might need to be byte swapped (and appropriately padded with zeroes if src_len != dst_len) if dst_byte_order does not match the byte order in this object.
[in]	dst_len	The length number of bytes that the endian value will occupy is dst.
[in]	dst_byte_order	The byte order that the endian value should be in the dst buffer.

Returns

Returns the number of bytes that were copied, or zero if anything goes wrong.

Definition at line 691 of file DataExtractor.cpp.

References lldb::eByteOrderBig, lldb::eByteOrderLittle, m_byte_order, PeekData(), and ValidOffsetForDataOfSize().

Referenced by lldb_private::RegisterValue::GetAsMemoryData(), lldb_private::Scalar::GetAsMemoryData(), GetLongDouble(), ABISysV_mips::GetReturnValueObjectImpl(), ABISysV_mips64::GetReturnValueObjectImpl(), ABISysV_ppc::GetReturnValueObjectImpl(), ABISysV_x86_64::GetReturnValueObjectImpl(), ABIWindows_x86_64::GetReturnValueObjectImpl(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::PrivateSetRegisterValue(), lldb_private::ValueObject::SetData(), ABISysV_ppc::SetReturnValueObject(), ABISysV_ppc64::SetReturnValueObject(), ABISysV_s390x::SetReturnValueObject(), ABISysV_x86_64::SetReturnValueObject(), ABIWindows_x86_64::SetReturnValueObject(), lldb_private::ValueObject::SetValueFromCString(), lldb_private::RegisterValue::SetValueFromData(), and lldb_private::process_gdb_remote::GDBRemoteRegisterContext::WriteRegisterBytes().

CopyData()

lldb::offset_t DataExtractor::CopyData	(	lldb::offset_t	offset,
		lldb::offset_t	length,
		void *	dst
	)		const

Copy length bytes from *offset, without swapping bytes.

Parameters

[in]	offset	The offset into this data from which to start copying
[in]	length	The length of the data to copy from this object
[out]	dst	The buffer to place the output data.

Returns

Returns the number of bytes that were copied, or zero if anything goes wrong.

Definition at line 679 of file DataExtractor.cpp.

References PeekData().

Referenced by lldb_private::ObjectFile::CopyData(), ObjectFileMachO::FindLC_NOTEByName(), ObjectFileMachO::GetCorefileAllImageInfos(), ObjectFileMachO::GetCorefileMainBinaryInfo(), ObjectFileMachO::GetCorefileThreadExtraInfos(), ObjectFileMachO::GetIdentifierString(), ParseFileset(), RegisterContextCorePOSIX_powerpc::ReadRegister(), RegisterContextCorePOSIX_ppc64le::ReadRegister(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::ReadRegister(), and ObjectFileELF::ReadSectionData().

ExtractBytes()

size_t DataExtractor::ExtractBytes	(	lldb::offset_t	offset,
		lldb::offset_t	length,
		lldb::ByteOrder	dst_byte_order,
		void *	dst
	)		const

Extract an arbitrary number of bytes in the specified byte order.

Attemps to extract length bytes starting at offset bytes into this data in the requested byte order (dst_byte_order) and place the results in dst. dst must be at least length bytes long.

Parameters

[in]	offset	The offset in bytes into the contained data at which to start extracting.
[in]	length	The number of bytes to extract.
[in]	dst_byte_order	A byte order of the data that we want when the value in copied to dst.
[out]	dst	The buffer that will receive the extracted value if there are enough bytes available in the current data.

Returns

The number of bytes that were extracted which will be length when the value is successfully extracted, or zero if there aren't enough bytes at the specified offset.

Definition at line 660 of file DataExtractor.cpp.

References GetByteOrder(), and PeekData().

Referenced by ObjectFileMachO::GetAllArchSpecs(), ELFLinuxPrPsInfo::Parse(), ELFNote::Parse(), RegisterContextCorePOSIX_x86_64::RegisterContextCorePOSIX_x86_64(), RegisterContextDarwin_arm_Mach::SetRegisterDataFrom_LC_THREAD(), and RegisterContextDarwin_arm64_Mach::SetRegisterDataFrom_LC_THREAD().

Get()

template<typename T >

T lldb_private::DataExtractor::Get ( lldb::offset_t *  offset_ptr, T  fail_value  ) const

inlineprotected

Definition at line 993 of file DataExtractor.h.

References GetData(), lldb_private::endian::InlHostByteOrder(), and m_byte_order.

GetAddress()

uint64_t DataExtractor::GetAddress

(

lldb::offset_t *

offset_ptr

)

const

Extract an address from *offset_ptr.

Extract a single address from the data and update the offset pointed to by offset_ptr. The size of the extracted address comes from the m_addr_size member variable and should be set correctly prior to extracting any address values.

Parameters

[in,out]

offset_ptr

A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.

Returns

The extracted address value.

Definition at line 650 of file DataExtractor.cpp.

References GetMaxU64(), and m_addr_size.

Referenced by DerefSizeExtractDataHelper(), CommunicationKDP::DumpPacket(), EntityVariableBase::DumpToLog(), EntityResultVariable::DumpToLog(), lldb_private::DWARFExpression::Evaluate(), lldb_private::AppleObjCRuntimeV2::NonPointerISACache::EvaluateNonPointerISA(), SystemRuntimeMacOSX::ExtractItemInfoFromBuffer(), lldb_private::DWARFCallFrameInfo::FDEToUnwindPlan(), lldb_private::AppleObjCRuntime::GetBacktraceThreadFromException(), GetGNUEHPointer(), lldb_private::DWARFExpression::GetLocation_DW_OP_addr(), SystemRuntimeMacOSX::GetPendingItemRefsForQueue(), lldb_private::ValueObject::GetPointerValue(), lldb_private::DynamicLoaderDarwin::GetThreadLocalData(), GetVTableAddress(), EntityVariableBase::Materialize(), ELFLinuxPrStatus::Parse(), ELFLinuxPrPsInfo::Parse(), AuxVector::ParseAuxv(), lldb_private::AppleObjCRuntimeV2::ParseClassInfoArray(), SystemRuntimeMacOSX::PopulateQueuesUsingLibBTR(), ObjectFileMachO::ProcessSegmentCommand(), PutToLog(), DynamicLoaderMacOSXDYLD::ReadAllImageInfosStructure(), DynamicLoaderMacOSXDYLD::ReadImageInfos(), ReadJITEntry(), ObjectFileELF::RefineModuleDetailsFromNote(), lldb_private::AppleObjCTrampolineHandler::AppleObjCVTables::RefreshTrampolines(), lldb_private::ValueObjectDynamicValue::SetData(), lldb_private::AppleObjCTrampolineHandler::AppleObjCVTables::VTableRegion::SetUpRegion(), and lldb_private::AppleObjCRuntimeV1::UpdateISAToDescriptorMapIfNeeded().

GetAddress_unchecked()

uint64_t DataExtractor::GetAddress_unchecked

(

lldb::offset_t *

offset_ptr

)

const

Definition at line 655 of file DataExtractor.cpp.

References GetMaxU64_unchecked(), and m_addr_size.

Referenced by ParseNList(), lldb_private::ClassDescriptorV2::objc_class_t::Read(), lldb_private::ClassDescriptorV2::class_ro_t::Read(), lldb_private::ClassDescriptorV2::class_rw_t::Read(), lldb_private::ClassDescriptorV2::ivar_t::Read(), and lldb_private::ClassDescriptorV2::method_t::Read().

GetAddressByteSize()

uint32_t lldb_private::DataExtractor::GetAddressByteSize ( ) const

inline

Get the current address size.

Return the size in bytes of any address values this object will extract.

Returns

The size in bytes of address values that will be extracted.

Definition at line 264 of file DataExtractor.h.

References m_addr_size.

Referenced by lldb_private::ValueObject::AddressOf(), lldb_private::ValueObject::CreateConstantValue(), lldb_private::DWARFExpression::DumpLocation(), lldb_private::DWARFExpressionList::DumpLocations(), lldb_private::DWARFExpression::Evaluate(), lldb_private::ObjectFileJIT::GetAddressByteSize(), ObjectFileELF::GetAddressByteSize(), ObjectFileMachO::GetAddressByteSize(), GetAsLLVM(), lldb_private::DWARFDataExtractor::GetAsLLVM(), lldb_private::DWARFDataExtractor::GetAsLLVMDWARF(), lldb_private::ValueObject::GetData(), lldb_private::DWARFExpressionList::GetDescription(), GetGNUEHPointer(), lldb_private::ValueObject::GetLocationAsCStringImpl(), lldb_private::plugin::dwarf::DWARFUnit::GetLocationTable(), GetOpcodeDataSize(), GetVTableAddress(), lldb_private::DWARFExpression::LinkThreadLocalStorage(), ELFLinuxPrPsInfo::Parse(), elf::ELFSectionHeader::Parse(), elf::ELFProgramHeader::Parse(), elf::ELFSymbol::Parse(), elf::ELFDynamic::Parse(), elf::ELFRel::Parse(), elf::ELFRela::Parse(), AuxVector::ParseAuxv(), lldb_private::DWARFExpression::ParseDWARFLocationList(), lldb_private::SymbolFileCTF::ParseHeader(), ObjectFileMachO::ParseSymtab(), DynamicLoaderMacOSXDYLD::ReadMachHeader(), ObjectFileELF::RefineModuleDetailsFromNote(), lldb_private::DWARFExpression::Update_DW_OP_addr(), lldb_private::ValueObject::ValueObject(), and lldb_private::process_gdb_remote::GDBRemoteRegisterContext::WriteAllRegisterValues().

GetAsLLVM()

llvm::DataExtractor lldb_private::DataExtractor::GetAsLLVM ( ) const

inline

Definition at line 987 of file DataExtractor.h.

References lldb::eByteOrderLittle, GetAddressByteSize(), GetByteOrder(), and GetData().

Referenced by lldb_private::wasm::ObjectFileWasm::DecodeNextSection(), lldb_private::DWARFExpression::DumpLocation(), and lldb_private::wasm::ObjectFileWasm::GetExternalDebugInfoFileSpec().

GetByteOrder()

lldb::ByteOrder lldb_private::DataExtractor::GetByteOrder ( ) const

inline

Get the current byte order value.

Returns

The current byte order value from this object's internal state.

Definition at line 594 of file DataExtractor.h.

References m_byte_order.

Referenced by Append(), InstructionLLVMC::CalculateMnemonicOperandsAndComment(), lldb_private::ValueObject::CreateConstantValue(), InstructionLLVMC::Decode(), EntityRegister::Dematerialize(), lldb_private::DumpDataExtractor(), ExtractBytes(), ObjectFileMachO::GetAllArchSpecs(), GetAPInt(), GetAsLLVM(), lldb_private::DWARFDataExtractor::GetAsLLVM(), lldb_private::DWARFDataExtractor::GetAsLLVMDWARF(), lldb_private::ObjectFileJIT::GetByteOrder(), ObjectFileMachO::GetByteOrder(), lldb_private::Value::GetData(), lldb_private::ValueObject::GetData(), lldb_private::plugin::dwarf::DWARFUnit::GetLocationTable(), lldb_private::Thread::GetSiginfoValue(), lldb_private::DWARFExpression::LinkThreadLocalStorage(), ELFLinuxPrPsInfo::Parse(), ELFNote::Parse(), lldb_private::DWARFExpression::ParseDWARFLocationList(), lldb_private::SymbolFileCTF::ParseHeader(), ObjectFileMachO::ParseSymtab(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::PrivateSetRegisterValue(), DynamicLoaderMacOSXDYLD::ReadMachHeader(), RegisterContextCorePOSIX_powerpc::ReadRegister(), RegisterContextCorePOSIX_ppc64le::ReadRegister(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::ReadRegister(), RegisterContextCorePOSIX_arm::RegisterContextCorePOSIX_arm(), RegisterContextCorePOSIX_arm64::RegisterContextCorePOSIX_arm64(), RegisterContextCorePOSIX_mips64::RegisterContextCorePOSIX_mips64(), RegisterContextCorePOSIX_powerpc::RegisterContextCorePOSIX_powerpc(), RegisterContextCorePOSIX_ppc64le::RegisterContextCorePOSIX_ppc64le(), RegisterContextCorePOSIX_s390x::RegisterContextCorePOSIX_s390x(), SetData(), lldb_private::ValueObject::SetData(), ABISysV_ppc::SetReturnValueObject(), ABISysV_ppc64::SetReturnValueObject(), ABISysV_s390x::SetReturnValueObject(), ABISysV_x86_64::SetReturnValueObject(), ABIWindows_x86_64::SetReturnValueObject(), lldb_private::ValueObject::SetValueFromCString(), lldb_private::Scalar::SetValueFromData(), lldb_private::RegisterValue::SetValueFromData(), lldb_private::DWARFExpression::Update_DW_OP_addr(), lldb_private::ValueObject::ValueObject(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::WriteAllRegisterValues(), and lldb_private::process_gdb_remote::GDBRemoteRegisterContext::WriteRegisterBytes().

GetByteSize()

uint64_t lldb_private::DataExtractor::GetByteSize ( ) const

inline

Get the number of bytes contained in this object.

Returns

The total number of bytes of data this object refers to.

Definition at line 270 of file DataExtractor.h.

References m_end, and m_start.

Referenced by Append(), BytesLeft(), calc_crc32(), InstructionLLVMC::CalculateMnemonicOperandsAndComment(), Checksum(), RegisterContextCorePOSIX_arm64::ConfigureRegisterContext(), Copy(), RegisterContextCorePOSIX_arm64::Create(), lldb_private::plugin::dwarf::AppleDWARFIndex::Create(), DataExtractor(), lldb_private::plugin::dwarf::SymbolFileDWARF::DebugAbbrev(), DisassemblerLLVMC::DecodeInstructions(), EntityVariableBase::Dematerialize(), EntityRegister::Dematerialize(), lldb_private::IRExecutionUnit::DisassembleFunction(), CommandObjectProcessKDPPacketSend::DoExecute(), lldb_private::DumpDataExtractor(), CommunicationKDP::DumpPacket(), lldb_private::DWARFExpression::Evaluate(), EmulateInstructionMIPS::EvaluateInstruction(), EmulateInstructionMIPS64::EvaluateInstruction(), PECallFrameInfo::FindRuntimeFunctionIntersectsWithRange(), lldb_private::TypeFormatImpl_EnumType::FormatObject(), lldb_private::DWARFDataExtractor::GetAsLLVM(), lldb_private::DWARFDataExtractor::GetAsLLVMDWARF(), lldb_private::Scalar::GetAsMemoryData(), ProcessElfCore::GetAuxvData(), GetData(), lldb_private::ValueObject::GetData(), lldb_private::plugin::dwarf::SymbolFileDWARF::GetDebugRanges(), lldb_private::plugin::dwarf::DWARFDebugInfoEntry::GetDIENamesAndRanges(), lldb_private::DWARFExpression::GetExpressionData(), GetExprListFromAtLocation(), lldb_private::DWARFCallFrameInfo::GetFDEIndex(), lldb_private::ProcessStructReader::GetField(), lldb_private::ObjectFile::GetLoadableData(), UnwindCodesIterator::GetNext(), lldb_private::ObjectContainerMachOFileset::GetObjectFile(), ABISysV_mips64::GetReturnValueObjectImpl(), ABISysV_ppc::GetReturnValueObjectImpl(), ABISysV_x86_64::GetReturnValueObjectImpl(), ABIWindows_x86_64::GetReturnValueObjectImpl(), EmulateInstructionMIPS::GetSizeOfInstruction(), lldb_private::ClangExpressionDeclMap::GetVariableValue(), lldb_private::plugin::dwarf::SymbolFileDWARF::InitializeObject(), lldb_private::DWARFExpression::IsValid(), lldb_private::DWARFExpression::LinkThreadLocalStorage(), EntityVariableBase::Materialize(), EntityRegister::Materialize(), ELFLinuxPrStatus::Parse(), ELFLinuxSigInfo::Parse(), ELFLinuxPrPsInfo::Parse(), lldb_private::plugin::dwarf::SymbolFileDWARF::ParseDebugMacros(), ObjectFileELF::ParseDependentModules(), ObjectFileELF::ParseDynamicSymbols(), ProcessElfCore::parseFreeBSDNotes(), ParseFreeBSDPrStatus(), lldb_private::SymbolFileCTF::ParseHeader(), ObjectContainerBSDArchive::ParseHeader(), ObjectFileMachO::ParseHeader(), lldb_private::ObjectContainerMachOFileset::ParseHeader(), ProcessElfCore::parseLinuxNotes(), ProcessElfCore::parseNetBSDNotes(), ObjectContainerBSDArchive::Archive::ParseObjects(), ProcessElfCore::parseOpenBSDNotes(), ProcessElfCore::parseSegment(), ObjectFileELF::ParseSymbolTable(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::PrivateSetRegisterValue(), lldb_private::Type::ReadFromMemory(), lldb_private::ValueObject::ReadPointedString(), RegisterContextCorePOSIX_arm64::ReadRegister(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::ReadRegisterBytes(), lldb_private::ObjectFileJIT::ReadSectionData(), lldb_private::ObjectFile::ReadSectionData(), RegisterContextCorePOSIX_arm::RegisterContextCorePOSIX_arm(), RegisterContextCorePOSIX_arm64::RegisterContextCorePOSIX_arm64(), RegisterContextCorePOSIX_mips64::RegisterContextCorePOSIX_mips64(), RegisterContextCorePOSIX_powerpc::RegisterContextCorePOSIX_powerpc(), RegisterContextCorePOSIX_ppc64le::RegisterContextCorePOSIX_ppc64le(), RegisterContextCorePOSIX_s390x::RegisterContextCorePOSIX_s390x(), lldb_private::Value::ResolveValue(), lldb_private::CompactUnwindInfo::ScanIndex(), CommunicationKDP::SendRequestReadMemory(), CommunicationKDP::SendRequestReadRegisters(), SetData(), lldb_private::Scalar::SetValueFromData(), lldb_private::RegisterValue::SetValueFromData(), lldb_private::DWARFExpression::Update_DW_OP_addr(), lldb_private::ValueObjectVariable::UpdateValue(), ValidOffset(), lldb_private::ValueObjectConstResult::ValueObjectConstResult(), InstructionLLVMC::VisitInstruction(), CommunicationKDP::WaitForPacketWithTimeoutMicroSecondsNoLock(), lldb_private::Watchpoint::WatchedValueReportable(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::WriteAllRegisterValues(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::WriteRegister(), and lldb_private::process_gdb_remote::GDBRemoteRegisterContext::WriteRegisterBytes().

GetCStr() [1/2]

const char * DataExtractor::GetCStr

(

lldb::offset_t *

offset_ptr

)

const

Extract a C string from *offset_ptr.

Returns a pointer to a C String from the data at the offset pointed to by offset_ptr. A variable length NULL terminated C string will be extracted and the offset_ptr will be updated with the offset of the byte that follows the NULL terminator byte.

Parameters

[in,out]

offset_ptr

A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.

Returns

A pointer to the C string value in the data. If the offset pointed to by offset_ptr is out of bounds, or if the offset plus the length of the C string is out of bounds, nullptr will be returned.

Definition at line 785 of file DataExtractor.cpp.

References m_end, and PeekData().

Referenced by lldb_private::DumpDataExtractor(), CommunicationKDP::DumpPacket(), SystemRuntimeMacOSX::ExtractItemInfoFromBuffer(), lldb_private::plugin::dwarf::DWARFFormValue::ExtractValue(), ObjectFileMachO::GetCorefileAllImageInfos(), GetDebugLinkContents(), GetFreeBSDProcessArgs(), GetMacOSXProcessArgs(), GetNetBSDProcessArgs(), GetOpenBSDProcessArgs(), ObjectFileELF::GetSectionHeaderInfo(), ObjectFilePECOFF::GetSectionName(), ELFNote::Parse(), ObjectFileELF::ParseARMAttributes(), ParseFileset(), ParseTrieEntries(), SystemRuntimeMacOSX::PopulateQueuesUsingLibBTR(), lldb_private::plugin::dwarf::DWARFDebugMacroEntry::ReadMacroEntries(), lldb_private::SymbolFileCTF::ReadString(), ObjectFileELF::RefineModuleDetailsFromNote(), and lldb_private::plugin::dwarf::DWARFFormValue::SkipValue().

GetCStr() [2/2]

const char * DataExtractor::GetCStr	(	lldb::offset_t *	offset_ptr,
		lldb::offset_t	len
	)		const

Extract a C string from *offset_ptr with field size len.

Returns a pointer to a C String from the data at the offset pointed to by offset_ptr, with a field length of len. A NULL terminated C string will be extracted and the offset_ptr will be updated with the offset of the byte that follows the fixed length field.

Parameters

[in,out]

offset_ptr

A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.

Returns

A pointer to the C string value in the data. If the offset pointed to by offset_ptr is out of bounds, or if the offset plus the length of the field is out of bounds, or if the field does not contain a NULL terminator byte, nullptr will be returned.

Definition at line 815 of file DataExtractor.cpp.

References PeekData().

GetData() [1/2]

llvm::ArrayRef< uint8_t > lldb_private::DataExtractor::GetData ( ) const

inline

Definition at line 983 of file DataExtractor.h.

References GetByteSize(), and GetDataStart().

Referenced by Get(), GetAsLLVM(), GetMaxU64(), GetU16(), GetU32(), GetU64(), and GetU8().

GetData() [2/2]

const void * lldb_private::DataExtractor::GetData ( lldb::offset_t *  offset_ptr, lldb::offset_t  length  ) const

inline

Extract length bytes from *offset_ptr.

Returns a pointer to a bytes in this object's data at the offset pointed to by offset_ptr. If length is zero or too large, then the offset pointed to by offset_ptr will not be updated and nullptr will be returned.

Parameters

[in,out]	offset_ptr	A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.
[in]	length	The optional length of a string to extract. If the value is zero, a NULL terminated C string will be extracted.

Returns

A pointer to the bytes in this object's data if the offset and length are valid, or nullptr otherwise.

Definition at line 337 of file DataExtractor.h.

References PeekData().

Referenced by ObjectFilePECOFF::CreateBinary(), lldb_private::breakpad::ObjectFileBreakpad::CreateSections(), lldb_private::CacheSignature::Decode(), lldb_private::StringTableReader::Decode(), lldb_private::plugin::dwarf::ManualDWARFIndex::IndexSet::Decode(), lldb_private::Symtab::Decode(), lldb_private::plugin::dwarf::NameToDIE::Decode(), DecodeCStrMap(), EntityRegister::Dematerialize(), lldb_private::DumpDataExtractor(), CommunicationKDP::DumpPacket(), lldb_private::DWARFExpression::Evaluate(), Evaluate_DW_OP_entry_value(), ObjectFileMachO::GetCorefileAllImageInfos(), ObjectFileELF::GetGnuDebugDataObjectFile(), lldb_private::plugin::dwarf::DWARFUnit::GetLocationTable(), lldb_private::DWARFCallFrameInfo::HandleCommonDwarfOpcode(), lldb_private::platform_android::AdbClient::SyncService::internalStat(), lldb_private::breakpad::SymbolFileBreakpad::LineIterator::LineIterator(), lldb_private::breakpad::SymbolFileBreakpad::LineIterator::operator++(), DynamicLoaderMacOSXDYLD::ParseLoadCommands(), DynamicLoaderDarwinKernel::ReadKextSummaries(), lldb_private::minidump::RegisterContextMinidump_ARM64::RegisterContextMinidump_ARM64(), CommunicationKDP::SendRequestReadMemory(), CommunicationKDP::SendRequestReadRegisters(), ABISysV_arc::SetReturnValueObject(), ABISysV_riscv::SetReturnValueObject(), TypedRead(), lldb_private::DWARFExpression::Update_DW_OP_addr(), and lldb_private::Watchpoint::WatchedValueReportable().

GetDataEnd()

const uint8_t * lldb_private::DataExtractor::GetDataEnd ( ) const

inline

Get the data end pointer.

Returns

Returns a pointer to the next byte contained in this object's data, or nullptr of there is no data in this object.

Definition at line 406 of file DataExtractor.h.

References m_end.

Referenced by lldb_private::breakpad::ObjectFileBreakpad::CreateSections().

GetDataStart()

const uint8_t * lldb_private::DataExtractor::GetDataStart ( ) const

inline

Get the data start pointer.

Returns

Returns a pointer to the first byte contained in this object's data, or nullptr of there is no data in this object.

Definition at line 422 of file DataExtractor.h.

References m_start.

Referenced by Append(), calc_crc32(), InstructionLLVMC::CalculateMnemonicOperandsAndComment(), Checksum(), lldb_private::breakpad::ObjectFileBreakpad::CreateSections(), EntityVariableBase::Dematerialize(), EntityRegister::Dematerialize(), CommandObjectProcessKDPPacketSend::DoExecute(), EmulateInstructionMIPS::EvaluateInstruction(), EmulateInstructionMIPS64::EvaluateInstruction(), ExtractDataMemberLocation(), lldb_private::DWARFDataExtractor::GetAsLLVM(), lldb_private::DWARFDataExtractor::GetAsLLVMDWARF(), ProcessElfCore::GetAuxvData(), GetData(), lldb_private::plugin::dwarf::DWARFDebugInfoEntry::GetDIENamesAndRanges(), lldb_private::ArmUnwindInfo::GetExceptionHandlingTableEntry(), GetExprListFromAtConstValue(), GetExprListFromAtLocation(), lldb_private::ObjectFile::GetLoadableData(), EmulateInstructionMIPS::GetSizeOfInstruction(), RegisterContextCorePOSIX_arm64::GetSVEBuffer(), lldb_private::ClangExpressionDeclMap::GetVariableValue(), lldb_private::DWARFExpression::LinkThreadLocalStorage(), EntityVariableBase::Materialize(), EntityRegister::Materialize(), lldb_private::SymbolFileCTF::ParseHeader(), ObjectContainerBSDArchive::Archive::ParseObjects(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::ReadAllRegisterValues(), RegisterContextCorePOSIX_arm64::ReadRegister(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::ReadRegisterBytes(), RegisterContextCorePOSIX_arm::RegisterContextCorePOSIX_arm(), RegisterContextCorePOSIX_arm64::RegisterContextCorePOSIX_arm64(), RegisterContextCorePOSIX_mips64::RegisterContextCorePOSIX_mips64(), RegisterContextCorePOSIX_powerpc::RegisterContextCorePOSIX_powerpc(), RegisterContextCorePOSIX_ppc64le::RegisterContextCorePOSIX_ppc64le(), RegisterContextCorePOSIX_s390x::RegisterContextCorePOSIX_s390x(), SetData(), lldb_private::ValueObject::SetData(), lldb_private::ValueObject::SetValueFromCString(), lldb_private::Scalar::SetValueFromData(), lldb_private::DWARFExpression::Update_DW_OP_addr(), lldb_private::ValueObjectRegister::UpdateValue(), lldb_private::ValueObjectVariable::UpdateValue(), lldb_private::ValueObjectConstResult::ValueObjectConstResult(), InstructionLLVMC::VisitInstruction(), and lldb_private::Watchpoint::WatchedValueReportable().

GetDouble()

double DataExtractor::GetDouble

(

lldb::offset_t *

offset_ptr

)

const

Definition at line 627 of file DataExtractor.cpp.

Referenced by lldb_private::DumpDataExtractor(), InterpreterStackFrame::EvaluateValue(), ABIMacOSX_arm64::GetReturnValueObjectImpl(), ABISysV_arm64::GetReturnValueObjectImpl(), ABISysV_mips::GetReturnValueObjectImpl(), ABISysV_mips64::GetReturnValueObjectImpl(), ABISysV_ppc::GetReturnValueObjectSimple(), ABISysV_s390x::GetReturnValueObjectSimple(), ABISysV_x86_64::GetReturnValueObjectSimple(), ABIWindows_x86_64::GetReturnValueObjectSimple(), RegisterContextDarwin_arm64::ReadRegister(), ABISysV_i386::SetReturnValueObject(), lldb_private::Scalar::SetValueFromData(), and lldb_private::RegisterValue::SetValueFromData().

GetFloat()

float DataExtractor::GetFloat

(

lldb::offset_t *

offset_ptr

)

const

Extract a float from *offset_ptr.

Extract a single float value.

Parameters

[in,out]

offset_ptr

A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.

Returns

The floating value that was extracted, or zero on failure.

Definition at line 623 of file DataExtractor.cpp.

Referenced by lldb_private::DumpDataExtractor(), InterpreterStackFrame::EvaluateValue(), ABIMacOSX_arm64::GetReturnValueObjectImpl(), ABISysV_arm64::GetReturnValueObjectImpl(), ABISysV_mips::GetReturnValueObjectImpl(), ABISysV_mips64::GetReturnValueObjectImpl(), ABISysV_ppc::GetReturnValueObjectSimple(), ABISysV_s390x::GetReturnValueObjectSimple(), ABISysV_x86_64::GetReturnValueObjectSimple(), ABIWindows_x86_64::GetReturnValueObjectSimple(), RegisterContextDarwin_arm64::ReadRegister(), ABISysV_i386::SetReturnValueObject(), lldb_private::Scalar::SetValueFromData(), and lldb_private::RegisterValue::SetValueFromData().

GetLongDouble()

long double DataExtractor::GetLongDouble

(

lldb::offset_t *

offset_ptr

)

const

Definition at line 631 of file DataExtractor.cpp.

References CopyByteOrderedData(), and lldb_private::endian::InlHostByteOrder().

Referenced by lldb_private::DumpDataExtractor(), ABIMacOSX_arm64::GetReturnValueObjectImpl(), ABISysV_arm64::GetReturnValueObjectImpl(), ABISysV_i386::GetReturnValueObjectSimple(), ABISysV_i386::SetReturnValueObject(), lldb_private::Scalar::SetValueFromData(), and lldb_private::RegisterValue::SetValueFromData().

GetMaxS64()

int64_t DataExtractor::GetMaxS64	(	lldb::offset_t *	offset_ptr,
		size_t	byte_size
	)		const

Extract an signed integer of size byte_size from *offset_ptr.

Extract a single signed integer value (sign extending if required) and update the offset pointed to by offset_ptr. The size of the extracted integer is specified by the byte_size argument. byte_size must have a value greater than or equal to one and less than or equal to eight since the return value is 64 bits wide.

Parameters

[in,out]	offset_ptr	A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.
[in]	byte_size	The size in byte of the integer to extract.

Returns

The sign extended signed integer value that was extracted, or zero on failure.

Definition at line 569 of file DataExtractor.cpp.

References GetMaxU64().

Referenced by GetMaxS64(), GetMaxS64Bitfield(), and lldb_private::CompilerType::GetValueAsScalar().

GetMaxS64Bitfield()

int64_t DataExtractor::GetMaxS64Bitfield	(	lldb::offset_t *	offset_ptr,
		size_t	size,
		uint32_t	bitfield_bit_size,
		uint32_t	bitfield_bit_offset
	)		const

Extract an signed integer of size size from *offset_ptr, then extract and sign-extend the bitfield from this value if bitfield_bit_size is non-zero.

Extract a single signed integer value (sign-extending if required) and update the offset pointed to by offset_ptr. The size of the extracted integer is specified by the size argument. size must have a value greater than or equal to one and less than or equal to eight since the return value is 64 bits wide.

Parameters

[in,out]	offset_ptr	A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.
[in]	size	The size in bytes of the integer to extract.
[in]	bitfield_bit_size	The size in bits of the bitfield value to extract, or zero to just extract the entire integer value.
[in]	bitfield_bit_offset	The bit offset of the bitfield value in the extracted integer. For little-endian data, this is the offset of the LSB of the bitfield from the LSB of the integer. For big-endian data, this is the offset of the MSB of the bitfield from the MSB of the integer.

Returns

The signed bitfield integer value that was extracted, or zero on failure.

Definition at line 602 of file DataExtractor.cpp.

References lldb::eByteOrderBig, GetMaxS64(), and m_byte_order.

Referenced by lldb_private::DumpDataExtractor(), and DumpEnumValue().

GetMaxU32()

uint32_t DataExtractor::GetMaxU32	(	lldb::offset_t *	offset_ptr,
		size_t	byte_size
	)		const

Extract an integer of size byte_size from *offset_ptr.

Extract a single integer value and update the offset pointed to by offset_ptr. The size of the extracted integer is specified by the byte_size argument. byte_size must have a value >= 1 and <= 4 since the return value is only 32 bits wide.

Parameters

[in,out]	offset_ptr	A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.
[in]	byte_size	The size in byte of the integer to extract.

Returns

The integer value that was extracted, or zero on failure.

Definition at line 519 of file DataExtractor.cpp.

References GetMaxU64(), and lldbassert.

Referenced by lldb_private::Target::ReadScalarIntegerFromMemory(), lldb_private::Process::ReadScalarIntegerFromMemory(), ABIMacOSX_arm::SetReturnValueObject(), ABISysV_arm::SetReturnValueObject(), ABISysV_mips::SetReturnValueObject(), ABIMacOSX_i386::SetReturnValueObject(), ABISysV_i386::SetReturnValueObject(), and lldb_private::RegisterValue::SetValueFromData().

GetMaxU64()

uint64_t DataExtractor::GetMaxU64	(	lldb::offset_t *	offset_ptr,
		size_t	byte_size
	)		const

Extract an unsigned integer of size byte_size from *offset_ptr.

Extract a single unsigned integer value and update the offset pointed to by offset_ptr. The size of the extracted integer is specified by the byte_size argument. byte_size must have a value greater than or equal to one and less than or equal to eight since the return value is 64 bits wide.

Parameters

[in,out]	offset_ptr	A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.
[in]	byte_size	The size in byte of the integer to extract.

Returns

The unsigned integer value that was extracted, or zero on failure.

Definition at line 525 of file DataExtractor.cpp.

References GetData(), GetU16(), GetU32(), GetU64(), GetU8(), lldbassert, m_byte_order, and ReadMaxInt64().

Referenced by lldb_private::plugin::dwarf::DWARFFormValue::Address(), DerefSizeExtractDataHelper(), InterpreterStackFrame::EvaluateValue(), lldb_private::plugin::dwarf::DWARFDebugArangeSet::extract(), lldb_private::plugin::dwarf::DWARFFormValue::ExtractValue(), lldb_private::plugin::dwarf::DWARFUnit::FindRnglistFromOffset(), GetAddress(), GetAPInt(), lldb_private::DWARFDataExtractor::GetDWARFOffset(), lldb_private::ProcessStructReader::GetField(), GetMaxS64(), GetMaxU32(), GetMaxU64(), GetMaxU64Bitfield(), lldb_private::CompilerType::GetValueAsScalar(), ELFLinuxPrPsInfo::Parse(), ObjectFilePECOFF::ParseCOFFOptionalHeader(), lldb_private::EmulateInstruction::ReadMemoryUnsigned(), RegisterContextDarwin_arm64::ReadRegister(), RegisterContextCorePOSIX_arm::ReadRegister(), RegisterContextCorePOSIX_mips64::ReadRegister(), RegisterContextCorePOSIX_powerpc::ReadRegister(), RegisterContextCorePOSIX_ppc64le::ReadRegister(), RegisterContextCorePOSIX_s390x::ReadRegister(), lldb_private::Target::ReadScalarIntegerFromMemory(), lldb_private::Process::ReadScalarIntegerFromMemory(), ABIMacOSX_arm64::SetReturnValueObject(), ABISysV_arm64::SetReturnValueObject(), ABISysV_arc::SetReturnValueObject(), ABIMacOSX_arm::SetReturnValueObject(), ABISysV_mips64::SetReturnValueObject(), ABISysV_ppc::SetReturnValueObject(), ABISysV_ppc64::SetReturnValueObject(), ABISysV_riscv::SetReturnValueObject(), ABISysV_s390x::SetReturnValueObject(), ABISysV_x86_64::SetReturnValueObject(), ABIWindows_x86_64::SetReturnValueObject(), and lldb_private::RegisterValue::SetValueFromData().

GetMaxU64_unchecked()

uint64_t DataExtractor::GetMaxU64_unchecked	(	lldb::offset_t *	offset_ptr,
		size_t	byte_size
	)		const

Definition at line 549 of file DataExtractor.cpp.

References GetU16_unchecked(), GetU32_unchecked(), GetU64_unchecked(), GetU8_unchecked(), m_byte_order, m_start, and ReadMaxInt64().

Referenced by GetAddress_unchecked(), and lldb_private::plugin::dwarf::DWARFUnit::ReadAddressFromDebugAddrSection().

GetMaxU64Bitfield()

uint64_t DataExtractor::GetMaxU64Bitfield	(	lldb::offset_t *	offset_ptr,
		size_t	size,
		uint32_t	bitfield_bit_size,
		uint32_t	bitfield_bit_offset
	)		const

Extract an unsigned integer of size byte_size from *offset_ptr, then extract the bitfield from this value if bitfield_bit_size is non-zero.

Extract a single unsigned integer value and update the offset pointed to by offset_ptr. The size of the extracted integer is specified by the byte_size argument. byte_size must have a value greater than or equal to one and less than or equal to 8 since the return value is 64 bits wide.

Parameters

[in,out]	offset_ptr	A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.
[in]	size	The size in byte of the integer to extract.
[in]	bitfield_bit_size	The size in bits of the bitfield value to extract, or zero to just extract the entire integer value.
[in]	bitfield_bit_offset	The bit offset of the bitfield value in the extracted integer. For little-endian data, this is the offset of the LSB of the bitfield from the LSB of the integer. For big-endian data, this is the offset of the MSB of the bitfield from the MSB of the integer.

Returns

The unsigned bitfield integer value that was extracted, or zero on failure.

Definition at line 574 of file DataExtractor.cpp.

References lldb::eByteOrderBig, GetMaxU64(), and m_byte_order.

Referenced by lldb_private::DumpDataExtractor(), and DumpEnumValue().

GetSharedDataBuffer()

lldb::DataBufferSP & lldb_private::DataExtractor::GetSharedDataBuffer ( )

inline

Definition at line 807 of file DataExtractor.h.

References m_data_sp.

Referenced by ApplyELF32ABS32RelRelocation(), ApplyELF64ABS32Relocation(), ApplyELF64ABS64Relocation(), ObjectFileELF::ApplyRelocations(), lldb_private::plugin::dwarf::AppleDWARFIndex::Create(), and lldb_private::ValueObjectConstResult::ValueObjectConstResult().

GetSharedDataOffset()

size_t DataExtractor::GetSharedDataOffset

(

)

const

Get the shared data offset.

Get the offset of the first byte of data in the shared data (if any).

Returns

If this object contains shared data, this function returns the offset in bytes into that shared data, zero otherwise.

Definition at line 203 of file DataExtractor.cpp.

References lldb_private::DataBuffer::GetBytes(), m_data_sp, and m_start.

Referenced by SetData().

GetSLEB128()

int64_t DataExtractor::GetSLEB128

(

lldb::offset_t *

offset_ptr

)

const

Extract a signed LEB128 value from *offset_ptr.

Extracts an signed LEB128 number from this object's data starting at the offset pointed to by offset_ptr. The offset pointed to by offset_ptr will be updated with the offset of the byte following the last extracted byte.

Parameters

[in,out]

offset_ptr

A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.

Returns

The extracted signed integer value.

Definition at line 860 of file DataExtractor.cpp.

References m_end, and PeekData().

Referenced by lldb_private::DWARFExpression::Evaluate(), lldb_private::plugin::dwarf::DWARFFormValue::ExtractValue(), GetGNUEHPointer(), lldb_private::DWARFCallFrameInfo::HandleCommonDwarfOpcode(), lldb_private::DWARFExpression::MatchesOperand(), lldb_private::DWARFCallFrameInfo::ParseCIE(), and PutToLog().

getTargetByteSize()

uint32_t lldb_private::DataExtractor::getTargetByteSize ( ) const

inline

Definition at line 170 of file DataExtractor.h.

References m_target_byte_size.

Referenced by lldb_private::DumpDataExtractor().

GetU16() [1/2]

uint16_t DataExtractor::GetU16

(

lldb::offset_t *

offset_ptr

)

const

Extract a uint16_t value from *offset_ptr.

Extract a single uint16_t from the binary data at the offset pointed to by offset_ptr, and update the offset on success.

Parameters

[in,out]

offset_ptr

A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.

Returns

The extracted uint16_t value.

Definition at line 348 of file DataExtractor.cpp.

References GetData(), lldb_private::endian::InlHostByteOrder(), m_byte_order, ReadInt16(), and ReadSwapInt16().

Referenced by InstructionLLVMC::CalculateMnemonicOperandsAndComment(), CommunicationKDP::CheckForPacket(), RegisterContextCorePOSIX_arm64::ConfigureRegisterContext(), lldb_private::Symbol::Decode(), InstructionLLVMC::Decode(), lldb_private::DumpDataExtractor(), CommunicationKDP::DumpPacket(), lldb_private::DWARFExpression::Evaluate(), lldb_private::plugin::dwarf::DWARFUnitHeader::extract(), lldb_private::plugin::dwarf::DWARFDebugArangeSet::extract(), lldb_private::plugin::dwarf::DWARFFormValue::ExtractValue(), lldb_private::DWARFCallFrameInfo::FDEToUnwindPlan(), lldb_private::CompactUnwindInfo::GetCompactUnwindInfoForFunction(), GetGNUEHPointer(), GetMaxU64(), ObjectFilePECOFF::MagicBytesMatch(), ELFLinuxPrStatus::Parse(), elf::ELFSymbol::Parse(), elf::ELFHeader::Parse(), ObjectFilePECOFF::ParseCOFFHeader(), ObjectFilePECOFF::ParseCOFFOptionalHeader(), ObjectFilePECOFF::ParseDOSHeader(), lldb_private::SymbolFileCTF::ParseHeader(), lldb_private::plugin::dwarf::DWARFDebugMacroHeader::ParseHeader(), lldb_private::SymbolFileCTF::ParseType(), PutToLog(), lldb_private::IRMemoryMap::ReadScalarFromMemory(), lldb_private::plugin::dwarf::DWARFUnit::SetDwoStrOffsetsBase(), lldb_private::AppleObjCTrampolineHandler::AppleObjCVTables::VTableRegion::SetUpRegion(), and lldb_private::plugin::dwarf::DWARFFormValue::SkipValue().

GetU16() [2/2]

void * DataExtractor::GetU16	(	lldb::offset_t *	offset_ptr,
		void *	dst,
		uint32_t	count
	)		const

Extract count uint16_t values from *offset_ptr.

Extract count uint16_t values from the binary data at the offset pointed to by offset_ptr, and advance the offset on success. The extracted values are copied into dst.

Parameters

[in,out]	offset_ptr	A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.
[out]	dst	A buffer to copy count uint16_t values into. dst must be large enough to hold all requested data.
[in]	count	The number of uint16_t values to extract.

Returns

dst if all values were properly extracted and copied, nullptr otherwise.

Definition at line 397 of file DataExtractor.cpp.

References GetData(), lldb_private::endian::InlHostByteOrder(), m_byte_order, and ReadSwapInt16().

GetU16_unchecked()

uint16_t DataExtractor::GetU16_unchecked

(

lldb::offset_t *

offset_ptr

)

const

Definition at line 361 of file DataExtractor.cpp.

References lldb_private::endian::InlHostByteOrder(), m_byte_order, m_start, ReadInt16(), and ReadSwapInt16().

Referenced by GetMaxU64_unchecked(), and ParseNList().

GetU32() [1/2]

uint32_t DataExtractor::GetU32

(

lldb::offset_t *

offset_ptr

)

const

Extract a uint32_t value from *offset_ptr.

Extract a single uint32_t from the binary data at the offset pointed to by offset_ptr, and update the offset on success.

Parameters

[in,out]

offset_ptr

A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.

Returns

The extracted uint32_t value.

Definition at line 426 of file DataExtractor.cpp.

References GetData(), lldb_private::endian::InlHostByteOrder(), m_byte_order, and ReadSwapInt32().

Referenced by lldb_private::ArmUnwindInfo::ArmUnwindInfo(), lldb_private::CompactUnwindInfo::BinarySearchCompressedSecondPage(), lldb_private::CompactUnwindInfo::BinarySearchRegularSecondPage(), InstructionLLVMC::CalculateMnemonicOperandsAndComment(), CommunicationKDP::CheckForPacket(), RegisterContextCorePOSIX_arm64::ConfigureRegisterContext(), ObjectFileMachO::CreateSections(), lldb_private::CacheSignature::Decode(), lldb_private::StringTableReader::Decode(), lldb_private::plugin::dwarf::ManualDWARFIndex::IndexSet::Decode(), lldb_private::Symtab::Decode(), lldb_private::Symbol::Decode(), lldb_private::Mangled::Decode(), lldb_private::plugin::dwarf::NameToDIE::Decode(), InstructionLLVMC::Decode(), DecodeCStrMap(), CommandObjectProcessMinidumpDump::DoExecute(), DynamicLoaderMacOSXDYLD::DoInitialImageFetch(), lldb_private::DumpDataExtractor(), CommunicationKDP::DumpPacket(), lldb_private::DWARFExpression::Evaluate(), SystemRuntimeMacOSX::ExtractItemInfoFromBuffer(), lldb_private::plugin::dwarf::DWARFFormValue::ExtractValue(), lldb_private::DWARFCallFrameInfo::FDEToUnwindPlan(), ObjectFileMachO::FindLC_NOTEByName(), FindMinimumVersionInfo(), ObjectFileMachO::GetAddressableBits(), ObjectFileMachO::GetAllArchSpecs(), lldb_private::CompactUnwindInfo::GetCompactUnwindInfoForFunction(), ObjectFileMachO::GetCorefileAllImageInfos(), ObjectFileMachO::GetCorefileMainBinaryInfo(), GetDebugLinkContents(), ObjectFileMachO::GetDependentModules(), lldb_private::DWARFDataExtractor::GetDWARFInitialLength(), ObjectFileMachO::GetEncryptedFileRanges(), ObjectFileMachO::GetEntryPointAddress(), lldb_private::DWARFCallFrameInfo::GetFDEIndex(), GetGNUEHPointer(), ObjectFileMachO::GetIdentifierString(), lldb_private::CompactUnwindInfo::GetLSDAForFunctionOffset(), GetMacOSXProcessArgs(), GetMaxU64(), ObjectFileMachO::GetNumThreadContexts(), SystemRuntimeMacOSX::GetPendingItemRefsForQueue(), ObjectFileELF::GetSectionHeaderInfo(), lldb_private::plugin::dwarf::DWARFUnit::GetStringOffsetSectionItem(), ObjectFileMachO::GetUUID(), lldb_private::CompilerType::GetValueAsScalar(), ObjectFileMachO::GetVersion(), lldb_private::platform_android::AdbClient::SyncService::internalStat(), ObjectFileMachO::IsStripped(), lldb_private::DWARFExpression::LinkThreadLocalStorage(), lldb_private::ObjectContainerMachOFileset::MagicBytesMatch(), ObjectContainerUniversalMachO::MagicBytesMatch(), ObjectFileMachO::MagicBytesMatch(), ELFLinuxPrStatus::Parse(), ELFLinuxSigInfo::Parse(), ELFLinuxPrPsInfo::Parse(), elf::ELFSectionHeader::Parse(), elf::ELFProgramHeader::Parse(), elf::ELFSymbol::Parse(), ELFNote::Parse(), elf::ELFHeader::Parse(), ObjectFileELF::ParseARMAttributes(), lldb_private::DWARFCallFrameInfo::ParseCIE(), lldb_private::AppleObjCRuntimeV2::ParseClassInfoArray(), ObjectFilePECOFF::ParseCOFFHeader(), ObjectFilePECOFF::ParseCOFFOptionalHeader(), ObjectFilePECOFF::ParseDOSHeader(), ParseFileset(), ParseFreeBSDPrPsInfo(), ParseFreeBSDPrStatus(), lldb_private::SymbolFileCTF::ParseFunctions(), lldb_private::SymbolFileCTF::ParseHeader(), ObjectFilePECOFF::ParseHeader(), lldb_private::plugin::dwarf::DWARFDebugMacroHeader::ParseHeader(), ObjectFileMachO::ParseHeader(), ObjectContainerUniversalMachO::ParseHeader(), DynamicLoaderMacOSXDYLD::ParseLoadCommands(), ParseMachOHeader(), ParseNetBSDProcInfo(), lldb_private::SymbolFileCTF::ParseObjects(), ParseOpenBSDProcInfo(), ObjectFileMachO::ParseSymtab(), lldb_private::SymbolFileCTF::ParseType(), SystemRuntimeMacOSX::PopulateQueuesUsingLibBTR(), ObjectFileMachO::ProcessDysymtabCommand(), ObjectFileMachO::ProcessSegmentCommand(), PutToLog(), DynamicLoaderMacOSXDYLD::ReadAllImageInfosStructure(), DynamicLoaderDarwinKernel::ReadKextSummaryHeader(), DynamicLoaderMacOSXDYLD::ReadMachHeader(), lldb_private::plugin::dwarf::DWARFDebugMacroEntry::ReadMacroEntries(), RegisterContextCorePOSIX_arm64::ReadRegister(), lldb_private::IRMemoryMap::ReadScalarFromMemory(), lldb_private::platform_android::AdbClient::SyncService::ReadSyncHeader(), ObjectFileELF::RefineModuleDetailsFromNote(), RegisterContextCorePOSIX_arm64::RegisterContextCorePOSIX_arm64(), lldb_private::minidump::RegisterContextMinidump_ARM::RegisterContextMinidump_ARM(), lldb_private::minidump::RegisterContextMinidump_ARM64::RegisterContextMinidump_ARM64(), lldb_private::CompactUnwindInfo::ScanIndex(), DynamicLoaderDarwinKernel::SearchForKernelWithDebugHints(), CommunicationKDP::SendRawRequest(), CommunicationKDP::SendRequestBreakpoint(), CommunicationKDP::SendRequestHostInfo(), CommunicationKDP::SendRequestReadMemory(), CommunicationKDP::SendRequestReadRegisters(), CommunicationKDP::SendRequestReattach(), CommunicationKDP::SendRequestVersion(), CommunicationKDP::SendRequestWriteMemory(), CommunicationKDP::SendRequestWriteRegisters(), lldb_private::plugin::dwarf::DWARFUnit::SetDwoStrOffsetsBase(), RegisterContextDarwin_x86_64_Mach::SetRegisterDataFrom_LC_THREAD(), RegisterContextDarwin_i386_Mach::SetRegisterDataFrom_LC_THREAD(), RegisterContextDarwin_arm_Mach::SetRegisterDataFrom_LC_THREAD(), RegisterContextDarwin_arm64_Mach::SetRegisterDataFrom_LC_THREAD(), ThreadKDP::SetStopInfoFrom_KDP_EXCEPTION(), lldb_private::AppleObjCTrampolineHandler::AppleObjCVTables::VTableRegion::SetUpRegion(), lldb_private::plugin::dwarf::DWARFFormValue::SkipValue(), and lldb_private::AppleObjCRuntimeV1::UpdateISAToDescriptorMapIfNeeded().

GetU32() [2/2]

void * DataExtractor::GetU32	(	lldb::offset_t *	offset_ptr,
		void *	dst,
		uint32_t	count
	)		const

Extract count uint32_t values from *offset_ptr.

Extract count uint32_t values from the binary data at the offset pointed to by offset_ptr, and advance the offset on success. The extracted values are copied into dst.

Parameters

[in,out]	offset_ptr	A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.
[out]	dst	A buffer to copy count uint32_t values into. dst must be large enough to hold all requested data.
[in]	count	The number of uint32_t values to extract.

Returns

dst if all values were properly extracted and copied, nullptr otherwise.

Definition at line 446 of file DataExtractor.cpp.

References GetData(), lldb_private::endian::InlHostByteOrder(), m_byte_order, and ReadSwapInt32().

GetU32_unchecked()

uint32_t DataExtractor::GetU32_unchecked

(

lldb::offset_t *

offset_ptr

)

const

Definition at line 371 of file DataExtractor.cpp.

References lldb_private::endian::InlHostByteOrder(), m_byte_order, m_start, ReadInt32(), and ReadSwapInt32().

Referenced by lldb_private::AppleObjCRuntimeV2::SharedCacheImageHeaders::CreateSharedCacheImageHeaders(), ObjectFileMachO::GetAddressableBits(), GetMaxU64_unchecked(), ParseNList(), lldb_private::ClassDescriptorV2::class_ro_t::Read(), lldb_private::ClassDescriptorV2::class_rw_t::Read(), lldb_private::ClassDescriptorV2::method_list_t::Read(), lldb_private::ClassDescriptorV2::ivar_list_t::Read(), lldb_private::ClassDescriptorV2::ivar_t::Read(), lldb_private::ClassDescriptorV2::relative_list_list_t::Read(), lldb_private::ClassDescriptorV2::method_t::Read(), and lldb_private::AppleObjCRuntimeV2::SharedCacheImageHeaders::UpdateIfNeeded().

GetU64() [1/2]

uint64_t DataExtractor::GetU64

(

lldb::offset_t *

offset_ptr

)

const

Extract a uint64_t value from *offset_ptr.

Extract a single uint64_t from the binary data at the offset pointed to by offset_ptr, and update the offset on success.

Parameters

[in,out]

offset_ptr

A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.

Returns

The extracted uint64_t value.

Definition at line 475 of file DataExtractor.cpp.

References GetData(), lldb_private::endian::InlHostByteOrder(), m_byte_order, and ReadSwapInt64().

Referenced by InstructionLLVMC::CalculateMnemonicOperandsAndComment(), lldb_private::plugin::dwarf::DIERef::Decode(), lldb_private::Symbol::Decode(), InstructionLLVMC::Decode(), CommunicationKDP::DumpPacket(), lldb_private::DWARFExpression::Evaluate(), lldb_private::plugin::dwarf::DWARFUnitHeader::extract(), SystemRuntimeMacOSX::ExtractItemInfoFromBuffer(), lldb_private::plugin::dwarf::DWARFFormValue::ExtractValue(), lldb_private::DWARFCallFrameInfo::FDEToUnwindPlan(), GetAPInt(), ObjectFileMachO::GetCorefileAllImageInfos(), ObjectFileMachO::GetCorefileMainBinaryInfo(), ObjectFileMachO::GetEntryPointAddress(), lldb_private::DWARFCallFrameInfo::GetFDEIndex(), GetGNUEHPointer(), GetMaxU64(), ABISysV_mips64::GetReturnValueObjectImpl(), lldb_private::CompilerType::GetValueAsScalar(), lldb_private::DWARFExpression::LinkThreadLocalStorage(), elf::ELFSymbol::Parse(), lldb_private::DWARFCallFrameInfo::ParseCIE(), lldb_private::plugin::dwarf::DWARFDebugMacroHeader::ParseHeader(), ObjectContainerUniversalMachO::ParseHeader(), DynamicLoaderMacOSXDYLD::ParseLoadCommands(), SystemRuntimeMacOSX::PopulateQueuesUsingLibBTR(), PutToLog(), ReadJITEntry(), DynamicLoaderDarwinKernel::ReadKextSummaries(), lldb_private::plugin::dwarf::DWARFDebugMacroEntry::ReadMacroEntries(), lldb_private::IRMemoryMap::ReadScalarFromMemory(), ReadUIntMax64(), lldb_private::minidump::RegisterContextMinidump_ARM::RegisterContextMinidump_ARM(), lldb_private::minidump::RegisterContextMinidump_ARM64::RegisterContextMinidump_ARM64(), DynamicLoaderDarwinKernel::SearchForKernelWithDebugHints(), lldb_private::plugin::dwarf::DWARFUnit::SetDwoStrOffsetsBase(), RegisterContextDarwin_x86_64_Mach::SetRegisterDataFrom_LC_THREAD(), RegisterContextDarwin_arm64_Mach::SetRegisterDataFrom_LC_THREAD(), lldb_private::RegisterValue::SetValueFromData(), and lldb_private::AppleObjCRuntimeV2::SharedCacheClassInfoExtractor::UpdateISAToDescriptorMap().

GetU64() [2/2]

void * DataExtractor::GetU64	(	lldb::offset_t *	offset_ptr,
		void *	dst,
		uint32_t	count
	)		const

Extract count uint64_t values from *offset_ptr.

Extract count uint64_t values from the binary data at the offset pointed to by offset_ptr, and advance the offset on success. The extracted values are copied into dst.

Parameters

[in,out]	offset_ptr	A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.
[out]	dst	A buffer to copy count uint64_t values into. dst must be large enough to hold all requested data.
[in]	count	The number of uint64_t values to extract.

Returns

dst if all values were properly extracted and copied, nullptr otherwise.

Definition at line 494 of file DataExtractor.cpp.

References GetData(), lldb_private::endian::InlHostByteOrder(), m_byte_order, and ReadSwapInt64().

GetU64_unchecked()

uint64_t DataExtractor::GetU64_unchecked

(

lldb::offset_t *

offset_ptr

)

const

Definition at line 381 of file DataExtractor.cpp.

References lldb_private::endian::InlHostByteOrder(), m_byte_order, m_start, ReadInt64(), and ReadSwapInt64().

Referenced by ObjectFileMachO::FindLC_NOTEByName(), GetMaxU64_unchecked(), lldb_private::ClassDescriptorV2::relative_list_entry_t::Read(), and lldb_private::AppleObjCRuntimeV2::SharedCacheImageHeaders::UpdateIfNeeded().

GetU8() [1/2]

uint8_t DataExtractor::GetU8

(

lldb::offset_t *

offset_ptr

)

const

Extract a uint8_t value from *offset_ptr.

Extract a single uint8_t from the binary data at the offset pointed to by offset_ptr, and advance the offset on success.

Parameters

[in,out]

offset_ptr

A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.

Returns

The extracted uint8_t value.

Definition at line 317 of file DataExtractor.cpp.

References GetData().

Referenced by InstructionLLVMC::CalculateMnemonicOperandsAndComment(), CommunicationKDP::CheckForPacket(), lldb_private::DWARFExpression::ContainsThreadLocalStorage(), lldb_private::CacheSignature::Decode(), lldb_private::plugin::dwarf::ManualDWARFIndex::IndexSet::Decode(), lldb_private::Symtab::Decode(), lldb_private::Symbol::Decode(), lldb_private::Mangled::Decode(), InstructionLLVMC::Decode(), lldb_private::DumpDataExtractor(), CommunicationKDP::DumpPacket(), lldb_private::DWARFExpression::Evaluate(), lldb_private::plugin::dwarf::DWARFUnitHeader::extract(), lldb_private::plugin::dwarf::DWARFDebugArangeSet::extract(), lldb_private::plugin::dwarf::DWARFFormValue::ExtractValue(), lldb_private::DWARFCallFrameInfo::FDEToUnwindPlan(), lldb_private::DWARFExpression::GetLocation_DW_OP_addr(), GetMaxU64(), ObjectFileELF::GetSectionHeaderInfo(), lldb_private::DWARFExpression::LinkThreadLocalStorage(), lldb_private::ObjectFileJSON::MagicBytesMatch(), lldb_private::DWARFExpression::MatchesOperand(), ELFLinuxPrPsInfo::Parse(), elf::ELFSymbol::Parse(), elf::ELFHeader::Parse(), ObjectFileELF::ParseARMAttributes(), lldb_private::DWARFCallFrameInfo::ParseCIE(), ObjectFilePECOFF::ParseCOFFOptionalHeader(), lldb_private::SymbolFileCTF::ParseHeader(), lldb_private::plugin::dwarf::DWARFDebugMacroHeader::ParseHeader(), ParseTrieEntries(), ObjectFileMachO::ProcessSegmentCommand(), PutToLog(), DynamicLoaderMacOSXDYLD::ReadAllImageInfosStructure(), lldb_private::plugin::dwarf::DWARFDebugMacroEntry::ReadMacroEntries(), lldb_private::IRMemoryMap::ReadScalarFromMemory(), CommunicationKDP::SendRequestAndGetReply(), ThreadKDP::SetStopInfoFrom_KDP_EXCEPTION(), lldb_private::plugin::dwarf::DWARFDebugMacroHeader::SkipOperandTable(), lldb_private::plugin::dwarf::DWARFFormValue::SkipValue(), and lldb_private::DWARFExpression::Update_DW_OP_addr().

GetU8() [2/2]

void * DataExtractor::GetU8	(	lldb::offset_t *	offset_ptr,
		void *	dst,
		uint32_t	count
	)		const

Extract count uint8_t values from *offset_ptr.

Extract count uint8_t values from the binary data at the offset pointed to by offset_ptr, and advance the offset on success. The extracted values are copied into dst.

Parameters

[in,out]	offset_ptr	A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.
[out]	dst	A buffer to copy count uint8_t values into. dst must be large enough to hold all requested data.
[in]	count	The number of uint8_t values to extract.

Returns

dst if all values were properly extracted and copied, nullptr otherwise.

Definition at line 330 of file DataExtractor.cpp.

References GetData().

GetU8_unchecked()

uint8_t lldb_private::DataExtractor::GetU8_unchecked ( lldb::offset_t *  offset_ptr ) const

inline

Definition at line 612 of file DataExtractor.h.

References m_start.

Referenced by GetMaxU64_unchecked(), and ParseNList().

GetULEB128()

uint64_t DataExtractor::GetULEB128

(

lldb::offset_t *

offset_ptr

)

const

Extract a unsigned LEB128 value from *offset_ptr.

Extracts an unsigned LEB128 number from this object's data starting at the offset pointed to by offset_ptr. The offset pointed to by offset_ptr will be updated with the offset of the byte following the last extracted byte.

Parameters

[in,out]

offset_ptr

A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.

Returns

The extracted unsigned integer value.

Definition at line 843 of file DataExtractor.cpp.

References m_end, and PeekData().

Referenced by lldb_private::DWARFExpression::Evaluate(), Evaluate_DW_OP_entry_value(), lldb_private::plugin::dwarf::DWARFDebugInfoEntry::Extract(), lldb_private::plugin::dwarf::DWARFFormValue::ExtractValue(), lldb_private::DWARFCallFrameInfo::FDEToUnwindPlan(), GetGNUEHPointer(), lldb_private::DWARFExpression::GetLocation_DW_OP_addr(), GetOpcodeDataSize(), lldb_private::DWARFCallFrameInfo::HandleCommonDwarfOpcode(), lldb_private::DWARFExpression::MatchesOperand(), ObjectFileELF::ParseARMAttributes(), lldb_private::DWARFCallFrameInfo::ParseCIE(), ParseTrieEntries(), PutToLog(), lldb_private::plugin::dwarf::DWARFDebugMacroEntry::ReadMacroEntries(), lldb_private::plugin::dwarf::DWARFDebugMacroHeader::SkipOperandTable(), lldb_private::plugin::dwarf::DWARFFormValue::SkipValue(), and lldb_private::DWARFExpression::Update_DW_OP_addr().

operator=() [1/2]

const DataExtractor & DataExtractor::operator=

(

const DataExtractor &

rhs

)

Assignment operator.

Copies all data, byte order and address size settings from rhs into this object. If rhs contains shared data, a reference to that shared data will be added.

Parameters

[in]

rhs

Another DataExtractor object to copy.

Returns

A const reference to this object.

Definition at line 178 of file DataExtractor.cpp.

References m_addr_size, m_byte_order, m_data_sp, m_end, and m_start.

operator=() [2/2]

DataExtractor & lldb_private::DataExtractor::operator= ( DataExtractor &&  rhs )

default

PeekCStr()

const char * DataExtractor::PeekCStr

(

lldb::offset_t

offset

)

const

Peek at a C string at offset.

Peeks at a string in the contained data. No verification is done to make sure the entire string lies within the bounds of this object's data, only offset is verified to be a valid offset.

Parameters

[in]

offset

An offset into the data.

Returns

A non-nullptr C string pointer if offset is a valid offset, nullptr otherwise.

Definition at line 833 of file DataExtractor.cpp.

References PeekData().

Referenced by lldb_private::plugin::dwarf::DWARFFormValue::AsCString(), elf::ELFSymbol::Dump(), CommunicationKDP::DumpPacket(), ObjectFileMachO::GetDependentModules(), ObjectFileELF::GetSectionHeaderInfo(), ObjectFileELF::ParseDependentModules(), DynamicLoaderMacOSXDYLD::ParseLoadCommands(), ParsePLTRelocations(), ObjectFileELF::ParseSymbols(), ObjectFileMachO::ParseSymtab(), lldb_private::ValueObject::ReadPointedString(), and CommunicationKDP::SendRequestKernelVersion().

PeekData()

const uint8_t * lldb_private::DataExtractor::PeekData ( lldb::offset_t  offset, lldb::offset_t  length  ) const

inline

Peek at a bytes at offset.

Returns a pointer to length bytes at offset as long as there are length bytes available starting at offset.

Returns

A non-nullptr data pointer if offset is a valid offset and there are length bytes available at that offset, nullptr otherwise.

Definition at line 832 of file DataExtractor.h.

References m_start, and ValidOffsetForDataOfSize().

Referenced by InstructionLLVMC::CalculateMnemonicOperandsAndComment(), CopyByteOrderedData(), CopyData(), InstructionLLVMC::Decode(), ExtractBytes(), lldb_private::plugin::dwarf::DWARFFormValue::ExtractValue(), GetCStr(), GetData(), GetFreeBSDProcessArgs(), GetMacOSXProcessArgs(), GetNetBSDProcessArgs(), GetOpenBSDProcessArgs(), GetSLEB128(), GetULEB128(), ObjectFileMachO::GetUUID(), lldb_private::Value::GetValueAsData(), ObjectContainerBSDArchive::MagicBytesMatch(), ObjectFileMachO::ParseSymtab(), PeekCStr(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::PrivateSetRegisterValue(), lldb_private::Type::ReadFromMemory(), lldb_private::ValueObject::ReadPointedString(), ObjectFileELF::RefineModuleDetailsFromNote(), Skip_LEB128(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::WriteAllRegisterValues(), and lldb_private::process_gdb_remote::GDBRemoteRegisterContext::WriteRegisterBytes().

PutToLog()

lldb::offset_t DataExtractor::PutToLog	(	Log *	log,
		lldb::offset_t	offset,
		lldb::offset_t	length,
		uint64_t	base_addr,
		uint32_t	num_per_line,
		DataExtractor::Type	type
	)		const

Dumps the binary data as type objects to stream s (or to Log() if s is nullptr) starting offset bytes into the data and stopping after dumping length bytes.

The offset into the data is displayed at the beginning of each line and can be offset by base address base_addr. num_per_line objects will be displayed on each line.

Parameters

[in]	log	The log to dump the output to.
[in]	offset	The offset into the data at which to start dumping.
[in]	length	The number of bytes to dump.
[in]	base_addr	The base address that gets added to the offset displayed on each line.
[in]	num_per_line	The number of type objects to display on each line.
[in]	type	The type of objects to use when dumping data from this object. See DataExtractor::Type.

Returns

The offset at which dumping ended.

Definition at line 903 of file DataExtractor.cpp.

References lldb_private::StreamString::Clear(), lldb_private::StreamString::Empty(), GetAddress(), lldb_private::StreamString::GetSize(), GetSLEB128(), lldb_private::StreamString::GetString(), GetU16(), GetU32(), GetU64(), GetU8(), GetULEB128(), LLDB_INVALID_ADDRESS, lldb_private::Stream::Printf(), lldb_private::Log::PutString(), TypeChar, TypePointer, TypeSLEB128, TypeUInt16, TypeUInt32, TypeUInt64, TypeUInt8, TypeULEB128, and ValidOffset().

Referenced by lldb_private::IRExecutionUnit::DisassembleFunction(), lldb_private::IRExecutionUnit::GetRunnableInfo(), and lldb_private::IRExecutionUnit::WriteNow().

SetAddressByteSize()

void lldb_private::DataExtractor::SetAddressByteSize ( uint32_t  addr_size )

inline

Set the address byte size.

Set the size in bytes that will be used when extracting any address and pointer values from data contained in this object.

Parameters

[in]

addr_size

The size in bytes to use when extracting addresses.

Definition at line 845 of file DataExtractor.h.

References m_addr_size.

Referenced by lldb_private::ValueObject::CreateConstantValue(), lldb_private::AppleObjCRuntime::GetBacktraceThreadFromException(), lldb_private::ValueObject::GetData(), ABISysV_arm::GetReturnValueObjectImpl(), lldb_private::Value::GetValueAsData(), LoadValueFromConsecutiveGPRRegisters(), lldb_private::ObjectFileJIT::ObjectFileJIT(), lldb_private::wasm::ObjectFileWasm::ObjectFileWasm(), elf::ELFHeader::Parse(), ObjectFileCOFF::ParseHeader(), ObjectFilePECOFF::ParseHeader(), ObjectFileMachO::ParseHeader(), ObjectContainerUniversalMachO::ParseHeader(), ParseMachOHeader(), DynamicLoaderMacOSXDYLD::ReadMachHeader(), lldb_private::ObjectFileJIT::ReadSectionData(), lldb_private::ObjectFile::ReadSectionData(), lldb_private::CompactUnwindInfo::ScanIndex(), lldb_private::ValueObjectDynamicValue::UpdateValue(), lldb_private::ValueObjectMemory::UpdateValue(), lldb_private::ValueObjectRegister::UpdateValue(), lldb_private::ValueObjectVariable::UpdateValue(), lldb_private::DWARFExpression::UpdateValue(), lldb_private::ValueObject::ValueObject(), and lldb_private::ValueObjectConstResult::ValueObjectConstResult().

SetByteOrder()

void lldb_private::DataExtractor::SetByteOrder ( lldb::ByteOrder  byte_order )

inline

Set the byte_order value.

Sets the byte order of the data to extract. Extracted values will be swapped if necessary when decoding.

Parameters

[in]

byte_order

The byte order value to use when extracting data.

Definition at line 929 of file DataExtractor.h.

References m_byte_order.

Referenced by lldb_private::ValueObject::CreateConstantValue(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::GDBRemoteRegisterContext(), lldb_private::Opcode::GetData(), lldb_private::Scalar::GetData(), lldb_private::ValueObject::GetData(), ABISysV_arm::GetReturnValueObjectImpl(), lldb_private::Value::GetValueAsData(), LoadValueFromConsecutiveGPRRegisters(), lldb_private::ObjectFileJIT::ObjectFileJIT(), elf::ELFHeader::Parse(), ObjectFileCOFF::ParseHeader(), ObjectFilePECOFF::ParseHeader(), ObjectFileMachO::ParseHeader(), ObjectContainerUniversalMachO::ParseHeader(), ParseMachOHeader(), DynamicLoaderMacOSXDYLD::ReadAllImageInfosStructure(), lldb_private::wasm::ObjectFileWasm::ReadImageData(), DynamicLoaderMacOSXDYLD::ReadMachHeader(), lldb_private::ObjectFileJIT::ReadSectionData(), lldb_private::ObjectFile::ReadSectionData(), lldb_private::ArchitectureAArch64::ReconfigureRegisterInfo(), RegisterContextCorePOSIX_arm::RegisterContextCorePOSIX_arm(), RegisterContextCorePOSIX_arm64::RegisterContextCorePOSIX_arm64(), RegisterContextCorePOSIX_mips64::RegisterContextCorePOSIX_mips64(), RegisterContextCorePOSIX_powerpc::RegisterContextCorePOSIX_powerpc(), RegisterContextCorePOSIX_ppc64le::RegisterContextCorePOSIX_ppc64le(), RegisterContextCorePOSIX_s390x::RegisterContextCorePOSIX_s390x(), lldb_private::CompactUnwindInfo::ScanIndex(), lldb_private::ValueObject::SetValueFromCString(), lldb_private::ValueObjectDynamicValue::UpdateValue(), lldb_private::ValueObjectMemory::UpdateValue(), lldb_private::ValueObjectVariable::UpdateValue(), lldb_private::DWARFExpression::UpdateValue(), lldb_private::ValueObject::ValueObject(), and lldb_private::ValueObjectConstResult::ValueObjectConstResult().

SetData() [1/3]

lldb::offset_t DataExtractor::SetData	(	const DataExtractor &	data,
		lldb::offset_t	offset,
		lldb::offset_t	length
	)

Adopt a subset of data.

Set this object's data to be a subset of the data bytes in data. If data contains shared data, then a reference to the shared data will be added to ensure the shared data stays around as long as any objects have references to the shared data. The byte order and the address size settings are copied from data. If offset is not a valid offset in data, then no reference to the shared data will be added. If there are not length bytes available in data starting at offset, the length will be truncated to contains as many bytes as possible.

Parameters

[in]	data	Another DataExtractor object that contains data.
[in]	offset	The offset into data at which the subset starts.
[in]	length	The length in bytes of the subset of data.

Returns

The number of bytes that this object now contains.

Definition at line 248 of file DataExtractor.cpp.

References GetByteOrder(), GetByteSize(), GetDataStart(), GetSharedDataOffset(), m_addr_size, m_byte_order, m_data_sp, SetData(), and ValidOffset().

SetData() [2/3]

lldb::offset_t DataExtractor::SetData	(	const lldb::DataBufferSP &	data_sp,
		lldb::offset_t	offset = 0,
		lldb::offset_t	length = LLDB_INVALID_OFFSET
	)

Adopt a subset of shared data in data_sp.

Copies the data shared pointer which adds a reference to the contained in data_sp. The shared data reference is reference counted to ensure the data lives as long as anyone still has a valid shared pointer to the data in data_sp. The byte order and address byte size settings remain the same. If offset is not a valid offset in data_sp, then no reference to the shared data will be added. If there are not length bytes available in data starting at offset, the length will be truncated to contains as many bytes as possible.

Parameters

[in]	data_sp	A shared pointer to data.
[in]	offset	The offset into data_sp at which the subset starts.
[in]	length	The length in bytes of the subset of data_sp.

Returns

The number of bytes that this object now contains.

Definition at line 281 of file DataExtractor.cpp.

References GetByteSize(), m_data_sp, m_end, and m_start.

SetData() [3/3]

lldb::offset_t DataExtractor::SetData	(	const void *	bytes,
		lldb::offset_t	length,
		lldb::ByteOrder	byte_order
	)

Set data with a buffer that is caller owned.

Use data that is owned by the caller when extracting values. The data must stay around as long as this object, or any object that copies a subset of this object's data, is valid. If bytes is nullptr, or length is zero, this object will contain no data.

Parameters

[in]	bytes	A pointer to caller owned data.
[in]	length	The length in bytes of bytes.
[in]	byte_order	A byte order of the data that we are extracting from.

Returns

The number of bytes that this object now contains.

Definition at line 224 of file DataExtractor.cpp.

References GetByteSize(), m_byte_order, m_data_sp, m_end, and m_start.

Referenced by Append(), ObjectFileELF::CalculateELFNotesSegmentsCRC32(), CommunicationKDP::CheckForPacket(), Copy(), ObjectContainerBSDArchive::CreateInstance(), lldb_private::ObjectContainerMachOFileset::CreateInstance(), ObjectContainerUniversalMachO::CreateInstance(), DataExtractor(), lldb_private::TypeFormatImpl_Format::FormatObject(), lldb_private::process_gdb_remote::GDBRemoteRegisterContext::GDBRemoteRegisterContext(), ObjectFileELF::GetArchitecture(), lldb_private::Value::GetData(), lldb_private::Opcode::GetData(), lldb_private::RegisterValue::GetData(), lldb_private::Scalar::GetData(), lldb_private::ObjectFile::GetData(), ObjectContainerBSDArchive::GetModuleSpecifications(), lldb_private::ObjectContainerMachOFileset::GetModuleSpecifications(), ObjectContainerUniversalMachO::GetModuleSpecifications(), ObjectFileELF::GetModuleSpecifications(), ObjectFileMachO::GetModuleSpecifications(), lldb_private::ValueObject::GetPointeeData(), ObjectFileELF::GetProgramHeaderInfo(), ABISysV_arm::GetReturnValueObjectImpl(), ABISysV_mips64::GetReturnValueObjectImpl(), ObjectFileELF::GetSectionHeaderInfo(), lldb_private::Value::GetValueAsData(), lldb_private::DWARFExpression::LinkThreadLocalStorage(), LoadValueFromConsecutiveGPRRegisters(), lldb_private::ObjectContainerMachOFileset::MagicBytesMatch(), lldb_private::ObjectFileJSON::MagicBytesMatch(), ObjectFileMachO::MagicBytesMatch(), lldb_private::ObjectContainer::ObjectContainer(), lldb_private::ObjectFile::ObjectFile(), ObjectFileMachO::ParseHeader(), lldb_private::ObjectContainerMachOFileset::ParseHeader(), lldb_private::Type::ReadFromMemory(), lldb_private::wasm::ObjectFileWasm::ReadImageData(), ObjectFilePECOFF::ReadImageData(), DynamicLoaderMacOSXDYLD::ReadMachHeader(), lldb_private::ObjectFileJIT::ReadSectionData(), ObjectFileELF::ReadSectionData(), lldb_private::ObjectFile::ReadSectionData(), lldb_private::ArchitectureAArch64::ReconfigureRegisterInfo(), RegisterContextCorePOSIX_arm::RegisterContextCorePOSIX_arm(), RegisterContextCorePOSIX_arm64::RegisterContextCorePOSIX_arm64(), RegisterContextCorePOSIX_mips64::RegisterContextCorePOSIX_mips64(), RegisterContextCorePOSIX_powerpc::RegisterContextCorePOSIX_powerpc(), RegisterContextCorePOSIX_ppc64le::RegisterContextCorePOSIX_ppc64le(), RegisterContextCorePOSIX_s390x::RegisterContextCorePOSIX_s390x(), RegisterContextMemory::RegisterContextMemory(), lldb_private::CompactUnwindInfo::ScanIndex(), RegisterContextMemory::SetAllRegisterData(), SetData(), lldb_private::ValueObject::SetData(), lldb_private::ValueObject::SetValueFromCString(), lldb_private::DWARFExpression::Update_DW_OP_addr(), lldb_private::AppleObjCRuntimeV1::UpdateISAToDescriptorMapIfNeeded(), lldb_private::DWARFExpression::UpdateValue(), and lldb_private::ValueObjectConstResult::ValueObjectConstResult().

Skip_LEB128()

uint32_t DataExtractor::Skip_LEB128

(

lldb::offset_t *

offset_ptr

)

const

Skip an LEB128 number at *offset_ptr.

Skips a LEB128 number (signed or unsigned) from this object's data starting at the offset pointed to by offset_ptr. The offset pointed to by offset_ptr will be updated with the offset of the byte following the last extracted byte.

Parameters

[in,out]

offset_ptr

A pointer to an offset within the data that will be advanced by the appropriate number of bytes if the value is extracted correctly. If the offset is out of bounds or there are not enough bytes to extract this value, the offset will be left unmodified.

Returns

The number of bytes consumed during the extraction.

Definition at line 877 of file DataExtractor.cpp.

References m_end, and PeekData().

Referenced by GetOpcodeDataSize(), and lldb_private::plugin::dwarf::DWARFFormValue::SkipValue().

ValidOffset()

bool lldb_private::DataExtractor::ValidOffset ( lldb::offset_t  offset ) const

inline

Test the validity of offset.

Returns

true if offset is a valid offset into the data in this object, false otherwise.

Definition at line 954 of file DataExtractor.h.

References GetByteSize().

Referenced by lldb_private::ArmUnwindInfo::ArmUnwindInfo(), lldb_private::DWARFExpression::ContainsThreadLocalStorage(), DataExtractor(), lldb_private::DumpDataExtractor(), lldb_private::DWARFExpression::Evaluate(), lldb_private::plugin::dwarf::DWARFUnitHeader::extract(), lldb_private::plugin::dwarf::DWARFDebugArangeSet::extract(), lldb_private::plugin::dwarf::DWARFDebugAranges::extract(), lldb_private::plugin::dwarf::DWARFUnit::extract(), lldb_private::DWARFCallFrameInfo::FDEToUnwindPlan(), lldb_private::plugin::dwarf::DWARFDebugInfoEntry::GetDIENamesAndRanges(), GetExprListFromAtLocation(), lldb_private::DWARFExpression::GetLocation_DW_OP_addr(), lldb_private::DWARFExpression::LinkThreadLocalStorage(), lldb_private::SymbolFileCTF::ParseHeader(), ParseTrieEntries(), lldb_private::plugin::dwarf::DWARFDebugInfo::ParseUnitsFor(), PutToLog(), DynamicLoaderMacOSXDYLD::ReadImageInfos(), lldb_private::SymbolFileCTF::ReadString(), SetData(), and lldb_private::DWARFExpression::Update_DW_OP_addr().

ValidOffsetForDataOfSize()

bool lldb_private::DataExtractor::ValidOffsetForDataOfSize ( lldb::offset_t  offset, lldb::offset_t  length  ) const

inline

Test the availability of length bytes of data from offset.

Returns

true if offset is a valid offset and there are length bytes available at that offset, false otherwise.

Definition at line 963 of file DataExtractor.h.

References BytesLeft().

Referenced by CopyByteOrderedData(), lldb_private::Symbol::Decode(), InstructionLLVMC::Decode(), lldb_private::DWARFCallFrameInfo::GetFDEIndex(), lldb_private::Value::GetValueAsData(), AuxVector::ParseAuxv(), ObjectFilePECOFF::ParseCOFFHeader(), ObjectFilePECOFF::ParseDOSHeader(), lldb_private::SymbolFileCTF::ParseHeader(), ObjectContainerUniversalMachO::ParseHeader(), DynamicLoaderMacOSXDYLD::ParseLoadCommands(), ParseNList(), PeekData(), ObjectFilePECOFF::ReadImageData(), and DynamicLoaderDarwinKernel::ReadKextSummaries().

Member Data Documentation

m_addr_size

uint32_t lldb_private::DataExtractor::m_addr_size

protected

The address size to use when extracting addresses.

Definition at line 1014 of file DataExtractor.h.

Referenced by Clear(), DataExtractor(), GetAddress(), GetAddress_unchecked(), GetAddressByteSize(), operator=(), SetAddressByteSize(), and SetData().

m_byte_order

lldb::ByteOrder lldb_private::DataExtractor::m_byte_order

protected

The byte order of the data we are extracting from.

Definition at line 1013 of file DataExtractor.h.

Referenced by Clear(), CopyByteOrderedData(), Get(), GetByteOrder(), GetMaxS64Bitfield(), GetMaxU64(), GetMaxU64_unchecked(), GetMaxU64Bitfield(), GetU16(), GetU16_unchecked(), GetU32(), GetU32_unchecked(), GetU64(), GetU64_unchecked(), operator=(), SetByteOrder(), and SetData().

m_data_sp

lldb::DataBufferSP lldb_private::DataExtractor::m_data_sp

protected

The shared pointer to data that can be shared among multiple instances.

Definition at line 1016 of file DataExtractor.h.

Referenced by Clear(), Copy(), GetSharedDataBuffer(), GetSharedDataOffset(), operator=(), and SetData().

m_end

const uint8_t* lldb_private::DataExtractor::m_end

protected

Initial value:

=
      nullptr

A pointer to the byte that is past the end of the data.

Definition at line 1010 of file DataExtractor.h.

Referenced by Clear(), GetByteSize(), GetCStr(), GetDataEnd(), GetSLEB128(), GetULEB128(), operator=(), SetData(), and Skip_LEB128().

m_start

const uint8_t* lldb_private::DataExtractor::m_start = nullptr

protected

A pointer to the first byte of data.

Definition at line 1009 of file DataExtractor.h.

Referenced by Clear(), Copy(), GetByteSize(), GetDataStart(), GetMaxU64_unchecked(), GetSharedDataOffset(), GetU16_unchecked(), GetU32_unchecked(), GetU64_unchecked(), GetU8_unchecked(), operator=(), PeekData(), and SetData().

m_target_byte_size

uint32_t lldb_private::DataExtractor::m_target_byte_size = 1

protected

Making it const would require implementation of move assignment operator.

Definition at line 1018 of file DataExtractor.h.

Referenced by getTargetByteSize().

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The documentation for this class was generated from the following files:

• DataExtractor.h
• DataExtractor.cpp