llvm::jitlink::MachOLinkGraphBuilder Class Reference

#include "ExecutionEngine/JITLink/MachOLinkGraphBuilder.h"

Classes
class	NormalizedSection
struct	NormalizedSymbol

Public Member Functions
virtual	~MachOLinkGraphBuilder ()
Expected< std::unique_ptr< LinkGraph > >	buildGraph ()

Protected Types
using	SectionParserFunction = std::function< Error(NormalizedSection &S)>

Protected Member Functions
	MachOLinkGraphBuilder (const object::MachOObjectFile &Obj, Triple TT, LinkGraph::GetEdgeKindNameFunction GetEdgeKindName)
LinkGraph &	getGraph () const
const object::MachOObjectFile &	getObject () const
void	addCustomSectionParser (StringRef SectionName, SectionParserFunction Parse)
virtual Error	addRelocations ()=0
template<typename... ArgTs>
NormalizedSymbol &	createNormalizedSymbol (ArgTs &&... Args)
	Create a symbol. More...
NormalizedSection &	getSectionByIndex (unsigned Index)
	Index is zero-based (MachO section indexes are usually one-based) and assumed to be in-range. More...
Expected< NormalizedSection & >	findSectionByIndex (unsigned Index)
	Try to get the section at the given index. More...
Expected< NormalizedSymbol & >	findSymbolByIndex (uint64_t Index)
	Try to get the symbol at the given index. More...
Symbol *	getSymbolByAddress (NormalizedSection &NSec, orc::ExecutorAddr Address)
	Returns the symbol with the highest address not greater than the search address, or null if no such symbol exists. More...
Expected< Symbol & >	findSymbolByAddress (NormalizedSection &NSec, orc::ExecutorAddr Address)
	Returns the symbol with the highest address not greater than the search address, or an error if no such symbol exists. More...
MachO::relocation_info	getRelocationInfo (const object::relocation_iterator RelItr)

Static Protected Member Functions
static Linkage	getLinkage (uint16_t Desc)
static Scope	getScope (StringRef Name, uint8_t Type)
static bool	isAltEntry (const NormalizedSymbol &NSym)
static bool	isDebugSection (const NormalizedSection &NSec)
static bool	isZeroFillSection (const NormalizedSection &NSec)

Detailed Description

Definition at line 29 of file MachOLinkGraphBuilder.h.

Member Typedef Documentation

SectionParserFunction

using llvm::jitlink::MachOLinkGraphBuilder::SectionParserFunction = std::function<Error(NormalizedSection &S)>

protected

Definition at line 83 of file MachOLinkGraphBuilder.h.

Constructor & Destructor Documentation

~MachOLinkGraphBuilder()

llvm::jitlink::MachOLinkGraphBuilder::~MachOLinkGraphBuilder ( )

virtualdefault

MachOLinkGraphBuilder()

llvm::jitlink::MachOLinkGraphBuilder::MachOLinkGraphBuilder ( const object::MachOObjectFile &  Obj, Triple  TT, LinkGraph::GetEdgeKindNameFunction  GetEdgeKindName  )

protected

Definition at line 49 of file MachOLinkGraphBuilder.cpp.

References llvm::object::MachOObjectFile::getHeader64(), llvm::MachO::MH_SUBSECTIONS_VIA_SYMBOLS, and string.

Member Function Documentation

addCustomSectionParser()

void llvm::jitlink::MachOLinkGraphBuilder::addCustomSectionParser ( StringRef  SectionName, SectionParserFunction  Parse  )

protected

Definition at line 60 of file MachOLinkGraphBuilder.cpp.

References assert(), llvm::StringMap< ValueTy, AllocatorTy >::count(), move, and llvm::AMDGPU::ElfNote::SectionName.

addRelocations()

virtual Error llvm::jitlink::MachOLinkGraphBuilder::addRelocations ( )

protectedpure virtual

buildGraph()

Expected< std::unique_ptr< LinkGraph > > llvm::jitlink::MachOLinkGraphBuilder::buildGraph

(

)

Definition at line 25 of file MachOLinkGraphBuilder.cpp.

References llvm::object::MachOObjectFile::isRelocatableObject().

createNormalizedSymbol()

template<typename... ArgTs>

NormalizedSymbol& llvm::jitlink::MachOLinkGraphBuilder::createNormalizedSymbol ( ArgTs &&...  Args )

inlineprotected

Create a symbol.

Definition at line 99 of file MachOLinkGraphBuilder.h.

References Allocator, and llvm::AMDGPU::HSAMD::Kernel::Key::Args.

findSectionByIndex()

Expected<NormalizedSection &> llvm::jitlink::MachOLinkGraphBuilder::findSectionByIndex ( unsigned  Index )

inlineprotected

Try to get the section at the given index.

Will return an error if the given index is out of range, or if no section has been added for the given index.

Definition at line 117 of file MachOLinkGraphBuilder.h.

References llvm::formatv(), and I.

findSymbolByAddress()

Expected<Symbol &> llvm::jitlink::MachOLinkGraphBuilder::findSymbolByAddress ( NormalizedSection &  NSec, orc::ExecutorAddr  Address  )

inlineprotected

Returns the symbol with the highest address not greater than the search address, or an error if no such symbol exists.

Definition at line 149 of file MachOLinkGraphBuilder.h.

References llvm::formatv(), and getSymbolByAddress().

findSymbolByIndex()

Expected<NormalizedSymbol &> llvm::jitlink::MachOLinkGraphBuilder::findSymbolByIndex ( uint64_t  Index )

inlineprotected

Try to get the symbol at the given index.

Will return an error if the given index is out of range, or if no symbol has been added for the given index.

Definition at line 128 of file MachOLinkGraphBuilder.h.

References assert(), llvm::formatv(), and I.

getGraph()

LinkGraph& llvm::jitlink::MachOLinkGraphBuilder::getGraph ( ) const

inlineprotected

Definition at line 88 of file MachOLinkGraphBuilder.h.

References G.

getLinkage()

Linkage llvm::jitlink::MachOLinkGraphBuilder::getLinkage ( uint16_t  Desc )

staticprotected

Definition at line 67 of file MachOLinkGraphBuilder.cpp.

References llvm::MachO::N_WEAK_DEF, llvm::MachO::N_WEAK_REF, llvm::jitlink::Strong, and llvm::jitlink::Weak.

getObject()

const object::MachOObjectFile& llvm::jitlink::MachOLinkGraphBuilder::getObject ( ) const

inlineprotected

Definition at line 90 of file MachOLinkGraphBuilder.h.

Referenced by getRelocationInfo().

getRelocationInfo()

MachO::relocation_info llvm::jitlink::MachOLinkGraphBuilder::getRelocationInfo ( const object::relocation_iterator  RelItr )

inlineprotected

Definition at line 167 of file MachOLinkGraphBuilder.h.

References getObject(), llvm::object::MachOObjectFile::getRelocation(), llvm::MachO::relocation_info::r_address, llvm::MachO::relocation_info::r_extern, llvm::MachO::relocation_info::r_length, llvm::MachO::relocation_info::r_pcrel, llvm::MachO::relocation_info::r_symbolnum, llvm::MachO::relocation_info::r_type, llvm::MachO::any_relocation_info::r_word0, and llvm::MachO::any_relocation_info::r_word1.

getScope()

Scope llvm::jitlink::MachOLinkGraphBuilder::getScope ( StringRef  Name, uint8_t  Type  )

staticprotected

Definition at line 73 of file MachOLinkGraphBuilder.cpp.

References llvm::jitlink::Default, llvm::jitlink::Hidden, llvm::jitlink::Local, llvm::MachO::N_EXT, and llvm::MachO::N_PEXT.

getSectionByIndex()

NormalizedSection& llvm::jitlink::MachOLinkGraphBuilder::getSectionByIndex ( unsigned  Index )

inlineprotected

Index is zero-based (MachO section indexes are usually one-based) and assumed to be in-range.

Client is responsible for checking.

Definition at line 108 of file MachOLinkGraphBuilder.h.

References assert(), and I.

getSymbolByAddress()

Symbol* llvm::jitlink::MachOLinkGraphBuilder::getSymbolByAddress ( NormalizedSection &  NSec, orc::ExecutorAddr  Address  )

inlineprotected

Returns the symbol with the highest address not greater than the search address, or null if no such symbol exists.

Definition at line 139 of file MachOLinkGraphBuilder.h.

References llvm::jitlink::MachOLinkGraphBuilder::NormalizedSection::CanonicalSymbols, and I.

Referenced by findSymbolByAddress().

isAltEntry()

bool llvm::jitlink::MachOLinkGraphBuilder::isAltEntry ( const NormalizedSymbol &  NSym )

staticprotected

Definition at line 83 of file MachOLinkGraphBuilder.cpp.

References llvm::jitlink::MachOLinkGraphBuilder::NormalizedSymbol::Desc, and llvm::MachO::N_ALT_ENTRY.

isDebugSection()

bool llvm::jitlink::MachOLinkGraphBuilder::isDebugSection ( const NormalizedSection &  NSec )

staticprotected

Definition at line 87 of file MachOLinkGraphBuilder.cpp.

References llvm::jitlink::MachOLinkGraphBuilder::NormalizedSection::Flags, llvm::MachO::S_ATTR_DEBUG, and llvm::jitlink::MachOLinkGraphBuilder::NormalizedSection::SegName.

isZeroFillSection()

bool llvm::jitlink::MachOLinkGraphBuilder::isZeroFillSection ( const NormalizedSection &  NSec )

staticprotected

Definition at line 92 of file MachOLinkGraphBuilder.cpp.

References llvm::jitlink::MachOLinkGraphBuilder::NormalizedSection::Flags, llvm::MachO::S_GB_ZEROFILL, llvm::MachO::S_THREAD_LOCAL_ZEROFILL, llvm::MachO::S_ZEROFILL, and llvm::MachO::SECTION_TYPE.

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

• lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.h
• lib/ExecutionEngine/JITLink/MachOLinkGraphBuilder.cpp