MCELFObjectWriter.h Source File (original) (raw)

9#ifndef LLVM_MC_MCELFOBJECTWRITER_H

10#define LLVM_MC_MCELFOBJECTWRITER_H

20#include

21#include

22#include

23#include

25namespace llvm {

38 unsigned Type;

51};

57 const unsigned HasRelocationAddend : 1;

58 const unsigned Is64Bit : 1;

60protected:

62 bool HasRelocationAddend_, uint8_t ABIVersion_ = 0);

64public:

73 switch (OSType) {

83 default:

85 }

86 }

89 bool IsPCRel) const = 0;

95 virtual void sortRelocs(std::vector &Relocs);

103 bool is64Bit() const { return Is64Bit; }

104

105

106

107

108#define R_TYPE_SHIFT 0

109#define R_TYPE_MASK 0xffffff00

110#define R_TYPE2_SHIFT 8

111#define R_TYPE2_MASK 0xffff00ff

112#define R_TYPE3_SHIFT 16

113#define R_TYPE3_MASK 0xff00ffff

114#define R_SSYM_SHIFT 24

115#define R_SSYM_MASK 0x00ffffff

116

117

130

131

132 static unsigned setRTypes(unsigned Value1, unsigned Value2, unsigned Value3) {

136 }

140};

141

143 unsigned ELFHeaderEFlags = 0;

144

145public:

149

152

157

166

167 ELFObjectWriter(std::unique_ptr MOTW,

169 ELFObjectWriter(std::unique_ptr MOTW,

172

173 void reset() override;

180 bool IsPCRel) const override;

182

185

187 unsigned Type) const;

188

191

194

195

198

199

201};

202}

203

204#endif

#define LLVM_DUMP_METHOD

Mark debug helper function definitions like dump() that should not be stripped from debug builds.

This file defines the DenseMap class.

#define R_TYPE2_SHIFT

Definition MCELFObjectWriter.h:110

#define R_SSYM_MASK

Definition MCELFObjectWriter.h:115

#define R_TYPE_SHIFT

Definition MCELFObjectWriter.h:108

#define R_TYPE3_SHIFT

Definition MCELFObjectWriter.h:112

#define R_SSYM_SHIFT

Definition MCELFObjectWriter.h:114

PowerPC TLS Dynamic Call Fixup

This file defines the SmallVector class.

std::unique_ptr< MCELFObjectTargetWriter > TargetObjectWriter

Definition MCELFObjectWriter.h:146

ELFObjectWriter(std::unique_ptr< MCELFObjectTargetWriter > MOTW, raw_pwrite_stream &OS, bool IsLittleEndian)

void setAssembler(MCAssembler *Asm) override

SmallVector< const MCSymbolELF *, 0 > Weakrefs

Definition MCELFObjectWriter.h:153

bool checkRelocation(SMLoc Loc, const MCSectionELF *From, const MCSectionELF *To)

void markGnuAbi()

Definition MCELFObjectWriter.h:196

unsigned getELFHeaderEFlags() const

Definition MCELFObjectWriter.h:192

void reset() override

lifetime management

void setELFHeaderEFlags(unsigned Flags)

Definition MCELFObjectWriter.h:193

void setOverrideABIVersion(uint8_t V)

Definition MCELFObjectWriter.h:200

bool SeenGnuAbi

Definition MCELFObjectWriter.h:155

std::optional< uint8_t > OverrideABIVersion

Definition MCELFObjectWriter.h:156

uint64_t writeObject() override

Write the object file and returns the number of bytes written.

bool seenGnuAbi() const

Definition MCELFObjectWriter.h:197

DenseMap< const MCSectionELF *, std::vector< ELFRelocationEntry > > Relocations

Definition MCELFObjectWriter.h:150

void executePostLayoutBinding() override

Perform any late binding of symbols (for example, to assign symbol indices for use when generating re...

bool IsLittleEndian

Definition MCELFObjectWriter.h:154

bool isSymbolRefDifferenceFullyResolvedImpl(const MCSymbol &SymA, const MCFragment &FB, bool InSet, bool IsPCRel) const override

SmallVector< Symver, 0 > Symvers

Definition MCELFObjectWriter.h:165

raw_pwrite_stream & OS

Definition MCELFObjectWriter.h:147

bool hasRelocationAddend() const

void recordRelocation(const MCFragment &F, const MCFixup &Fixup, MCValue Target, uint64_t &FixedValue) override

Record a relocation entry.

raw_pwrite_stream * DwoOS

Definition MCELFObjectWriter.h:148

bool usesRela(const MCTargetOptions *TO, const MCSectionELF &Sec) const

bool useSectionSymbol(const MCValue &Val, const MCSymbolELF *Sym, uint64_t C, unsigned Type) const

DenseMap< const MCSymbolELF *, const MCSymbolELF * > Renames

Definition MCELFObjectWriter.h:151

Context object for machine code objects.

static bool classof(const MCObjectTargetWriter *W)

Definition MCELFObjectWriter.h:68

virtual unsigned getRelocType(const MCFixup &Fixup, const MCValue &Target, bool IsPCRel) const =0

bool hasRelocationAddend() const

Definition MCELFObjectWriter.h:102

Triple::ObjectFormatType getFormat() const override

Definition MCELFObjectWriter.h:67

~MCELFObjectTargetWriter() override=default

uint8_t getABIVersion() const

Definition MCELFObjectWriter.h:100

static unsigned setRTypes(unsigned Value1, unsigned Value2, unsigned Value3)

Definition MCELFObjectWriter.h:132

uint8_t getRType(uint32_t Type) const

Definition MCELFObjectWriter.h:118

uint8_t getRSsym(uint32_t Type) const

Definition MCELFObjectWriter.h:127

uint8_t getOSABI() const

Definition MCELFObjectWriter.h:99

virtual bool needsRelocateWithSymbol(const MCValue &, unsigned Type) const

Definition MCELFObjectWriter.h:91

uint16_t getEMachine() const

Definition MCELFObjectWriter.h:101

static uint8_t getOSABI(Triple::OSType OSType)

Definition MCELFObjectWriter.h:72

unsigned setRSsym(unsigned Value, unsigned Type) const

Definition MCELFObjectWriter.h:137

virtual void sortRelocs(std::vector< ELFRelocationEntry > &Relocs)

MCELFObjectTargetWriter(bool Is64Bit_, uint8_t OSABI_, uint16_t EMachine_, bool HasRelocationAddend_, uint8_t ABIVersion_=0)

bool is64Bit() const

Definition MCELFObjectWriter.h:103

uint8_t getRType2(uint32_t Type) const

Definition MCELFObjectWriter.h:121

uint8_t getRType3(uint32_t Type) const

Definition MCELFObjectWriter.h:124

Encode information on a single operation to perform on a byte sequence (e.g., an encoded instruction)...

Base class for classes that define behaviour that is specific to both the target and the object forma...

This represents a section on linux, lots of unix variants and some bare metal systems.

MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...

Represents a location in source code.

This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small.

StringRef - Represent a constant reference to a string, i.e.

Target - Wrapper for Target specific information.

The instances of the Type class are immutable: once they are created, they are never changed.

LLVM Value Representation.

This class implements an extremely fast bulk output stream that can only output to a stream.

An abstract base class for streams implementations that also support a pwrite operation.

@ C

The default llvm calling convention, compatible with C.

This is an optimization pass for GlobalISel generic memory operations.

LLVM_ABI raw_fd_ostream & errs()

This returns a reference to a raw_ostream for standard error.

SMLoc Loc

Definition MCELFObjectWriter.h:159

bool KeepOriginalSym

Definition MCELFObjectWriter.h:163

const MCSymbol * Sym

Definition MCELFObjectWriter.h:160

StringRef Name

Definition MCELFObjectWriter.h:161

ELFRelocationEntry(uint64_t Offset, const MCSymbolELF *Symbol, unsigned Type, uint64_t Addend)

Definition MCELFObjectWriter.h:41

uint64_t Offset

Definition MCELFObjectWriter.h:36

uint64_t Addend

Definition MCELFObjectWriter.h:39

unsigned Type

Definition MCELFObjectWriter.h:38

const MCSymbolELF * Symbol

Definition MCELFObjectWriter.h:37

void print(raw_ostream &Out) const

Definition MCELFObjectWriter.h:45

LLVM_DUMP_METHOD void dump() const

Definition MCELFObjectWriter.h:50