ELFObjectWriter.cpp File Reference

#include "llvm/MC/MCELFObjectWriter.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCAsmLayout.h"
#include "llvm/MC/MCAssembler.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCELFSymbolFlags.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCFixupKindInfo.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCValue.h"
#include "llvm/MC/StringTableBuilder.h"
#include "llvm/Support/Compression.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
#include <vector>

Include dependency graph for ELFObjectWriter.cpp:

Go to the source code of this file.

Defines
#define	DEBUG_TYPE   "reloc-info"
Typedefs
typedef DenseMap< const MCSectionData *, std::vector < MCSymbolData * > >	DefiningSymbolMap
Functions
static uint8_t	mergeTypeForSet (uint8_t origType, uint8_t newType)
static const MCSymbol *	getWeakRef (const MCSymbolRefExpr &Ref)
static SmallVector< char, 128 >	getUncompressedData (MCAsmLayout &Layout, MCSectionData::FragmentListType &Fragments)
static bool	prependCompressionHeader (uint64_t Size, SmallVectorImpl< char > &CompressedContents)
static std::unique_ptr < MCDataFragment >	getCompressedFragment (MCAsmLayout &Layout, MCSectionData::FragmentListType &Fragments)
static void	UpdateSymbols (const MCAsmLayout &Layout, const std::vector< MCSymbolData * > &Symbols, MCFragment &NewFragment)
static void	CompressDebugSection (MCAssembler &Asm, MCAsmLayout &Layout, const DefiningSymbolMap &DefiningSymbols, const MCSectionELF &Section, MCSectionData &SD)
static int	cmpRel (const ELFRelocationEntry *AP, const ELFRelocationEntry *BP)
static void	sortRelocs (const MCAssembler &Asm, std::vector< ELFRelocationEntry > &Relocs)

---

Define Documentation

#define DEBUG_TYPE   "reloc-info"

Definition at line 41 of file ELFObjectWriter.cpp.

---

Typedef Documentation

typedef DenseMap<const MCSectionData *, std::vector<MCSymbolData *> > DefiningSymbolMap

Definition at line 1219 of file ELFObjectWriter.cpp.

---

Function Documentation

static int cmpRel	(	const ELFRelocationEntry *	AP,
		const ELFRelocationEntry *	BP
	)		[static]

Definition at line 1332 of file ELFObjectWriter.cpp.

References llvm::ARM_PROC::A, and llvm_unreachable.

Referenced by sortRelocs().

static void CompressDebugSection	(	MCAssembler &	Asm,
		MCAsmLayout &	Layout,
		const DefiningSymbolMap &	DefiningSymbols,
		const MCSectionELF &	Section,
		MCSectionData &	SD
	)		[static]

Definition at line 1231 of file ELFObjectWriter.cpp.

References llvm::iplist< NodeTy, Traits >::clear(), llvm::StringRef::drop_front(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::end(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::find(), llvm::iplist< NodeTy, Traits >::front(), getCompressedFragment(), llvm::MCAssembler::getContext(), llvm::MCSectionData::getFragmentList(), llvm::MCSectionELF::getSectionName(), I, llvm::MCAsmLayout::invalidateFragmentsFrom(), llvm::iplist< NodeTy, Traits >::push_back(), llvm::MCContext::renameELFSection(), and UpdateSymbols().

static std::unique_ptr<MCDataFragment> getCompressedFragment	(	MCAsmLayout &	Layout,
		MCSectionData::FragmentListType &	Fragments
	)		[static]

Definition at line 1195 of file ELFObjectWriter.cpp.

References llvm::zlib::compress(), llvm::SmallVectorTemplateCommon< T >::data(), getUncompressedData(), prependCompressionHeader(), llvm::SmallVectorTemplateCommon< T >::size(), llvm::zlib::StatusOK, and Success.

Referenced by CompressDebugSection().

static SmallVector<char, 128> getUncompressedData	(	MCAsmLayout &	Layout,
		MCSectionData::FragmentListType &	Fragments
	)		[static]

Definition at line 1148 of file ELFObjectWriter.cpp.

References llvm::SmallVectorImpl< T >::append(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::SmallVectorTemplateCommon< T, typename >::end(), F(), llvm::MCFragment::getKind(), and llvm_unreachable.

Referenced by getCompressedFragment().

static const MCSymbol* getWeakRef

(

const MCSymbolRefExpr &

Ref

)

[static]

Definition at line 790 of file ELFObjectWriter.cpp.

References llvm::dyn_cast(), llvm::MCSymbolRefExpr::getKind(), llvm::MCSymbolRefExpr::getSymbol(), llvm::MCSymbol::getVariableValue(), and llvm::MCSymbol::isVariable().

static uint8_t mergeTypeForSet	(	uint8_t	origType,
		uint8_t	newType
	)		[static]

Definition at line 544 of file ELFObjectWriter.cpp.

References llvm::ELF::STT_FUNC, llvm::ELF::STT_GNU_IFUNC, llvm::ELF::STT_NOTYPE, llvm::ELF::STT_OBJECT, llvm::ELF::STT_TLS, and Type.

static bool prependCompressionHeader	(	uint64_t	Size,
		SmallVectorImpl< char > &	CompressedContents
	)		[static]

Definition at line 1176 of file ELFObjectWriter.cpp.

References llvm::StringRef::begin(), llvm::SmallVectorTemplateCommon< T, typename >::begin(), llvm::StringRef::end(), llvm::SmallVectorImpl< T >::insert(), llvm::sys::IsLittleEndianHost, Magic, llvm::StringRef::size(), llvm::SmallVectorTemplateCommon< T, typename >::size(), and llvm::sys::swapByteOrder().

Referenced by getCompressedFragment().

static void sortRelocs	(	const MCAssembler &	Asm,
		std::vector< ELFRelocationEntry > &	Relocs
	)		[static]

Definition at line 1342 of file ELFObjectWriter.cpp.

References llvm::array_pod_sort(), and cmpRel().

static void UpdateSymbols	(	const MCAsmLayout &	Layout,
		const std::vector< MCSymbolData * > &	Symbols,
		MCFragment &	NewFragment
	)		[static]

Definition at line 1221 of file ELFObjectWriter.cpp.

References llvm::MCAsmLayout::getFragmentOffset().

Referenced by CompressDebugSection().