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LLVM
4.0.0
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MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created and uniqued by the MCContext class. More...
#include <MCSymbol.h>
Classes | |
| union | NameEntryStorageTy |
| The name for a symbol. More... | |
Public Member Functions | |
| StringRef | getName () const |
| getName - Get the symbol name. More... | |
| bool | isRegistered () const |
| void | setIsRegistered (bool Value) const |
| void | setUsedInReloc () const |
| bool | isUsedInReloc () const |
| uint32_t | getIndex () const |
| Get the (implementation defined) index. More... | |
| void | setIndex (uint32_t Value) const |
| Set the (implementation defined) index. More... | |
| uint64_t | getOffset () const |
| void | setOffset (uint64_t Value) |
| uint64_t | getCommonSize () const |
| Return the size of a 'common' symbol. More... | |
| void | setCommon (uint64_t Size, unsigned Align) |
| Mark this symbol as being 'common'. More... | |
| unsigned | getCommonAlignment () const |
| Return the alignment of a 'common' symbol. More... | |
| bool | declareCommon (uint64_t Size, unsigned Align) |
| Declare this symbol as being 'common'. More... | |
| bool | isCommon () const |
| Is this a 'common' symbol. More... | |
| MCFragment * | getFragment (bool SetUsed=true) const |
| bool | isExternal () const |
| void | setExternal (bool Value) const |
| bool | isPrivateExtern () const |
| void | setPrivateExtern (bool Value) |
| void | print (raw_ostream &OS, const MCAsmInfo *MAI) const |
print - Print the value to the stream OS. More... | |
| void | dump () const |
| dump - Print the value to stderr. More... | |
Accessors | |
| bool | isTemporary () const |
| isTemporary - Check if this is an assembler temporary symbol. More... | |
| bool | isUsed () const |
| isUsed - Check if this is used. More... | |
| void | setUsed (bool Value) const |
| bool | isRedefinable () const |
| Check if this symbol is redefinable. More... | |
| void | setRedefinable (bool Value) |
| Mark this symbol as redefinable. More... | |
| void | redefineIfPossible () |
| Prepare this symbol to be redefined. More... | |
Associated Sections | |
| bool | isDefined (bool SetUsed=true) const |
| isDefined - Check if this symbol is defined (i.e., it has an address). More... | |
| bool | isInSection (bool SetUsed=true) const |
| isInSection - Check if this symbol is defined in some section (i.e., it is defined but not absolute). More... | |
| bool | isUndefined (bool SetUsed=true) const |
| isUndefined - Check if this symbol undefined (i.e., implicitly defined). More... | |
| bool | isAbsolute (bool SetUsed=true) const |
| isAbsolute - Check if this is an absolute symbol. More... | |
| MCSection & | getSection (bool SetUsed=true) const |
| Get the section associated with a defined, non-absolute symbol. More... | |
| void | setFragment (MCFragment *F) const |
Mark the symbol as defined in the fragment F. More... | |
| void | setUndefined () |
| Mark the symbol as undefined. More... | |
| bool | isELF () const |
| bool | isCOFF () const |
| bool | isMachO () const |
Variable Symbols | |
| bool | isVariable () const |
| isVariable - Check if this is a variable symbol. More... | |
| const MCExpr * | getVariableValue (bool SetUsed=true) const |
| getVariableValue - Get the value for variable symbols. More... | |
| void | setVariableValue (const MCExpr *Value) |
Protected Types | |
| enum | SymbolKind { SymbolKindUnset, SymbolKindCOFF, SymbolKindELF, SymbolKindMachO } |
| The kind of the symbol. More... | |
| enum | Contents : uint8_t { SymContentsUnset, SymContentsOffset, SymContentsVariable, SymContentsCommon } |
| A symbol can contain an Offset, or Value, or be Common, but never more than one of these. More... | |
| enum | : unsigned { NumCommonAlignmentBits = 5 } |
| The alignment of the symbol, if it is 'common', or -1. More... | |
| enum | : unsigned { NumFlagsBits = 16 } |
| The Flags field is used by object file implementations to store additional per symbol information which is not easily classified. More... | |
Protected Member Functions | |
| MCSymbol (SymbolKind Kind, const StringMapEntry< bool > *Name, bool isTemporary) | |
| void * | operator new (size_t s, const StringMapEntry< bool > *Name, MCContext &Ctx) |
| uint32_t | getFlags () const |
| Get the (implementation defined) symbol flags. More... | |
| void | setFlags (uint32_t Value) const |
| Set the (implementation defined) symbol flags. More... | |
| void | modifyFlags (uint32_t Value, uint32_t Mask) const |
| Modify the flags via a mask. More... | |
Protected Attributes | |
| PointerIntPair< MCFragment *, 1 > | FragmentAndHasName |
| If a symbol has a Fragment, the section is implied, so we only need one pointer. More... | |
| unsigned | IsTemporary: 1 |
| IsTemporary - True if this is an assembler temporary label, which typically does not survive in the .o file's symbol table. More... | |
| unsigned | IsRedefinable: 1 |
| True if this symbol can be redefined. More... | |
| unsigned | IsUsed: 1 |
| IsUsed - True if this symbol has been used. More... | |
| unsigned | IsRegistered: 1 |
| unsigned | IsExternal: 1 |
| This symbol is visible outside this translation unit. More... | |
| unsigned | IsPrivateExtern: 1 |
| This symbol is private extern. More... | |
| unsigned | Kind: 2 |
| LLVM RTTI discriminator. More... | |
| unsigned | IsUsedInReloc: 1 |
| True if we have created a relocation that uses this symbol. More... | |
| unsigned | SymbolContents: 2 |
| This is actually a Contents enumerator, but is unsigned to avoid sign extension and achieve better bitpacking with MSVC. More... | |
| unsigned | CommonAlignLog2: NumCommonAlignmentBits |
| uint32_t | Flags: NumFlagsBits |
| uint32_t | Index = 0 |
| Index field, for use by the object file implementation. More... | |
| union { | |
| uint64_t Offset | |
| The offset to apply to the fragment address to form this symbol's value. More... | |
| uint64_t CommonSize | |
| The size of the symbol, if it is 'common'. More... | |
| const MCExpr * Value | |
| If non-null, the value for a variable symbol. More... | |
| }; | |
Static Protected Attributes | |
| static MCFragment * | AbsolutePseudoFragment = &SentinelFragment |
Friends | |
| class | MCExpr |
| class | MCContext |
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created and uniqued by the MCContext class.
MCSymbols should only be constructed with valid names for the object file.
If the symbol is defined/emitted into the current translation unit, the Section member is set to indicate what section it lives in. Otherwise, if it is a reference to an external entity, it has a null section.
Definition at line 39 of file MCSymbol.h.
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The alignment of the symbol, if it is 'common', or -1.
The alignment is stored as log2(align) + 1. This allows all values from 0 to 2^31 to be stored which is every power of 2 representable by an unsigned.
| Enumerator | |
|---|---|
| NumCommonAlignmentBits | |
Definition at line 114 of file MCSymbol.h.
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The Flags field is used by object file implementations to store additional per symbol information which is not easily classified.
| Enumerator | |
|---|---|
| NumFlagsBits | |
Definition at line 119 of file MCSymbol.h.
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A symbol can contain an Offset, or Value, or be Common, but never more than one of these.
| Enumerator | |
|---|---|
| SymContentsUnset | |
| SymContentsOffset | |
| SymContentsVariable | |
| SymContentsCommon | |
Definition at line 52 of file MCSymbol.h.
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The kind of the symbol.
If it is any value other than unset then this class is actually one of the appropriate subclasses of MCSymbol.
| Enumerator | |
|---|---|
| SymbolKindUnset | |
| SymbolKindCOFF | |
| SymbolKindELF | |
| SymbolKindMachO | |
Definition at line 43 of file MCSymbol.h.
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Definition at line 149 of file MCSymbol.h.
References FragmentAndHasName, and Offset.
Declare this symbol as being 'common'.
| Size | - The size of the symbol. |
| Align | - The alignment of the symbol. |
Definition at line 362 of file MCSymbol.h.
References assert(), CommonSize, getCommonAlignment(), getOffset(), isCommon(), and setCommon().
| LLVM_DUMP_METHOD void MCSymbol::dump | ( | ) | const |
dump - Print the value to stderr.
Definition at line 78 of file MCSymbol.cpp.
References llvm::dbgs().
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Return the alignment of a 'common' symbol.
Definition at line 352 of file MCSymbol.h.
References assert(), CommonAlignLog2, and isCommon().
Referenced by declareCommon(), and llvm::MCSymbolMachO::getEncodedFlags().
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Return the size of a 'common' symbol.
Definition at line 329 of file MCSymbol.h.
References assert(), CommonSize, and isCommon().
Referenced by getSymbolValue(), and llvm::MachObjectWriter::writeNlist().
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Get the (implementation defined) symbol flags.
Definition at line 400 of file MCSymbol.h.
References Flags.
Referenced by llvm::MCSymbolELF::getBinding(), llvm::MCSymbolCOFF::getClass(), llvm::MCSymbolMachO::getEncodedFlags(), llvm::MCSymbolELF::getOther(), llvm::MCSymbolELF::getType(), llvm::MCSymbolELF::getVisibility(), llvm::MCSymbolMachO::isAltEntry(), llvm::MCSymbolELF::isBindingSet(), llvm::MCSymbolMachO::isNoDeadStrip(), llvm::MCSymbolCOFF::isSafeSEH(), llvm::MCSymbolELF::isSignature(), llvm::MCSymbolMachO::isSymbolResolver(), llvm::MCSymbolMachO::isWeakDefinition(), llvm::MCSymbolCOFF::isWeakExternal(), llvm::MCSymbolMachO::isWeakReference(), llvm::MCSymbolELF::isWeakrefUsedInReloc(), llvm::MCSymbolELF::setBinding(), llvm::MCSymbolELF::setIsSignature(), llvm::MCSymbolELF::setIsWeakrefUsedInReloc(), llvm::MCSymbolELF::setOther(), llvm::MCSymbolELF::setType(), and llvm::MCSymbolELF::setVisibility().
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Definition at line 377 of file MCSymbol.h.
References llvm::MCExpr::findAssociatedFragment(), FragmentAndHasName, getVariableValue(), and isVariable().
Referenced by llvm::MCObjectStreamer::emitAbsoluteSymbolDiff(), llvm::MCStreamer::EmitLabel(), llvm::MCExpr::findAssociatedFragment(), llvm::MCAssembler::getAtom(), getLabelOffset(), llvm::MachObjectWriter::getSymbolAddress(), isAbsolute(), isDefined(), llvm::MCObjectWriter::isSymbolRefDifferenceFullyResolved(), llvm::MCObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(), and llvm::MachObjectWriter::isSymbolRefDifferenceFullyResolvedImpl().
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Get the (implementation defined) index.
Definition at line 305 of file MCSymbol.h.
References Index.
Referenced by writeFragment().
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getName - Get the symbol name.
Definition at line 199 of file MCSymbol.h.
References llvm::StringMapEntry< ValueTy >::first(), and FragmentAndHasName.
Referenced by llvm::MachObjectWriter::bindIndirectSymbols(), llvm::MipsTargetAsmStreamer::emitDirectiveCpsetup(), llvm::MipsTargetAsmStreamer::emitDirectiveEnt(), llvm::EHStreamer::emitExceptionTable(), llvm::MipsAsmPrinter::EmitFunctionBodyEnd(), llvm::AsmPrinter::EmitFunctionEntryLabel(), llvm::AsmPrinter::EmitGlobalVariable(), llvm::TargetLoweringObjectFileELF::emitPersonalityValue(), EvaluateCRExpr(), llvm::MCContext::getAssociativeCOFFSection(), llvm::MCAsmLayout::getBaseSymbol(), llvm::TargetLoweringObjectFileELF::getCFIPersonalitySymbol(), llvm::MCContext::getCOFFSection(), llvm::MCContext::getELFSection(), llvm::MCSymbolMachO::getEncodedFlags(), llvm::TargetLoweringObjectFileCOFF::getExplicitSectionGlobal(), llvm::TargetLoweringObjectFileMachO::getIndirectSymViaGOTPCRel(), getLabelOffset(), llvm::TargetLoweringObjectFileCOFF::getSectionForJumpTable(), getStaticStructorSection(), llvm::MachObjectWriter::getSymbolAddress(), getSymbolOffsetImpl(), hasGOTReference(), llvm::HexagonMCELFStreamer::HexagonMCEmitCommonSymbol(), llvm::MCGenDwarfLabelEntry::Make(), llvm::MCExpr::print(), llvm::DIELabel::print(), llvm::DIEDelta::print(), print(), llvm::MipsAsmPrinter::printOperand(), llvm::NVPTXInstPrinter::printProtoIdent(), llvm::MCSectionELF::PrintSwitchToSection(), printSymbolOperand(), llvm::PPCInstPrinter::printTLSCall(), llvm::TargetLoweringObjectFileCOFF::SelectSectionForGlobal(), SortSymbolPair(), StartsWithGlobalOffsetTable(), and llvm::MachObjectWriter::writeObject().
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Definition at line 314 of file MCSymbol.h.
References assert(), Offset, SymbolContents, SymContentsOffset, and SymContentsUnset.
Referenced by declareCommon(), llvm::MCObjectStreamer::emitAbsoluteSymbolDiff(), getLabelOffset(), and setCommon().
Get the section associated with a defined, non-absolute symbol.
Definition at line 264 of file MCSymbol.h.
References assert(), and isInSection().
Referenced by llvm::DwarfCompileUnit::addRange(), canUseLocalRelocation(), llvm::AsmPrinter::emitDwarfSymbolReference(), llvm::CodeViewContext::encodeInlineLineTable(), llvm::MCObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(), and llvm::MachObjectWriter::isSymbolRefDifferenceFullyResolvedImpl().
getVariableValue - Get the value for variable symbols.
Definition at line 294 of file MCSymbol.h.
References assert(), IsUsed, isVariable(), and Value.
Referenced by canExpand(), llvm::MachObjectWriter::findAliasedSymbol(), llvm::MCAsmLayout::getBaseSymbol(), getFragment(), llvm::MachObjectWriter::getSymbolAddress(), getSymbolOffsetImpl(), llvm::MCParserUtils::isSymbolUsedInExpression(), llvm::MCAssembler::isThumbFunc(), and llvm::MCParserUtils::parseAssignmentExpression().
isAbsolute - Check if this is an absolute symbol.
Definition at line 259 of file MCSymbol.h.
References AbsolutePseudoFragment, and getFragment().
Referenced by isInSection(), and llvm::MachObjectWriter::writeNlist().
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Definition at line 280 of file MCSymbol.h.
References Kind, and SymbolKindCOFF.
Referenced by llvm::MCSymbolCOFF::classof().
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Is this a 'common' symbol.
Definition at line 373 of file MCSymbol.h.
References SymbolContents, and SymContentsCommon.
Referenced by declareCommon(), llvm::MCAsmLayout::getBaseSymbol(), getCommonAlignment(), getCommonSize(), llvm::MCSymbolMachO::getEncodedFlags(), getSymbolValue(), and llvm::MachObjectWriter::writeNlist().
isDefined - Check if this symbol is defined (i.e., it has an address).
Defined symbols are either absolute or in some section.
Definition at line 245 of file MCSymbol.h.
References getFragment().
Referenced by llvm::DwarfCompileUnit::attachLowHighPC(), llvm::AsmPrinter::EmitFunctionBody(), llvm::AsmPrinter::EmitFunctionEntryLabel(), llvm::AsmPrinter::EmitGlobalVariable(), llvm::MCSymbolELF::getBinding(), isInSection(), isUndefined(), llvm::MachineFunction::tidyLandingPads(), llvm::MMIAddrLabelMap::UpdateForDeletedBlock(), and llvm::MachObjectWriter::writeNlist().
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Definition at line 278 of file MCSymbol.h.
References Kind, and SymbolKindELF.
Referenced by llvm::MCSymbolELF::classof().
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Definition at line 386 of file MCSymbol.h.
References IsExternal.
Referenced by getSymbolValue(), llvm::ARMAsmBackend::processFixupValue(), and llvm::MachObjectWriter::writeNlist().
isInSection - Check if this symbol is defined in some section (i.e., it is defined but not absolute).
Definition at line 251 of file MCSymbol.h.
References isAbsolute(), and isDefined().
Referenced by canExpand(), canUseLocalRelocation(), llvm::MCStreamer::endSection(), llvm::MCAssembler::getAtom(), getSection(), llvm::MCAssembler::isSymbolLinkerVisible(), and llvm::MachObjectWriter::isSymbolRefDifferenceFullyResolvedImpl().
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Definition at line 282 of file MCSymbol.h.
References Kind, and SymbolKindMachO.
Referenced by llvm::MCSymbolMachO::classof().
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Definition at line 389 of file MCSymbol.h.
References IsPrivateExtern.
Referenced by llvm::MachObjectWriter::writeNlist().
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Check if this symbol is redefinable.
Definition at line 223 of file MCSymbol.h.
References IsRedefinable.
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Definition at line 206 of file MCSymbol.h.
References IsRegistered.
Referenced by llvm::MCAssembler::registerSymbol().
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isTemporary - Check if this is an assembler temporary symbol.
Definition at line 216 of file MCSymbol.h.
References IsTemporary.
Referenced by llvm::MCAssembler::isSymbolLinkerVisible(), llvm::MachObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(), llvm::MCGenDwarfLabelEntry::Make(), and llvm::AVRAsmBackend::processFixupValue().
isUndefined - Check if this symbol undefined (i.e., implicitly defined).
Definition at line 256 of file MCSymbol.h.
References isDefined().
Referenced by llvm::MachObjectWriter::doesSymbolRequireExternRelocation(), llvm::AsmPrinter::EmitConstantPool(), llvm::MachObjectWriter::getSymbolAddress(), llvm::MCObjectWriter::isSymbolRefDifferenceFullyResolved(), llvm::MCParserUtils::parseAssignmentExpression(), smallData(), and llvm::MachObjectWriter::writeNlist().
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isUsed - Check if this is used.
Definition at line 219 of file MCSymbol.h.
References IsUsed.
Referenced by llvm::MCParserUtils::parseAssignmentExpression().
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Definition at line 210 of file MCSymbol.h.
References IsUsedInReloc.
Referenced by llvm::MCSymbolELF::getBinding(), and llvm::MCAssembler::isSymbolLinkerVisible().
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isVariable - Check if this is a variable symbol.
Definition at line 289 of file MCSymbol.h.
References SymbolContents, and SymContentsVariable.
Referenced by llvm::MCObjectStreamer::emitAbsoluteSymbolDiff(), llvm::AsmPrinter::EmitFunctionEntryLabel(), llvm::AsmPrinter::EmitGlobalVariable(), llvm::MCStreamer::EmitLabel(), llvm::MachObjectWriter::findAliasedSymbol(), llvm::MCAsmLayout::getBaseSymbol(), getFragment(), llvm::MachObjectWriter::getSymbolAddress(), getSymbolOffsetImpl(), getVariableValue(), llvm::MachObjectWriter::isSymbolRefDifferenceFullyResolvedImpl(), llvm::MCParserUtils::isSymbolUsedInExpression(), llvm::MCAssembler::isThumbFunc(), llvm::MCParserUtils::parseAssignmentExpression(), and setFragment().
Modify the flags via a mask.
Definition at line 409 of file MCSymbol.h.
References assert(), Flags, and NumFlagsBits.
Referenced by llvm::MCSymbolMachO::clearReferenceType(), llvm::MCSymbolMachO::setAltEntry(), llvm::MCSymbolCOFF::setClass(), llvm::MCSymbolCOFF::setIsSafeSEH(), llvm::MCSymbolCOFF::setIsWeakExternal(), llvm::MCSymbolMachO::setNoDeadStrip(), llvm::MCSymbolMachO::setReferenceTypeUndefinedLazy(), llvm::MCSymbolMachO::setSymbolResolver(), llvm::MCSymbolMachO::setThumbFunc(), llvm::MCSymbolMachO::setWeakDefinition(), and llvm::MCSymbolMachO::setWeakReference().
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Definition at line 25 of file MCSymbol.cpp.
References llvm::WebAssembly::End.
| void MCSymbol::print | ( | raw_ostream & | OS, |
| const MCAsmInfo * | MAI | ||
| ) | const |
print - Print the value to the stream OS.
Definition at line 53 of file MCSymbol.cpp.
References C, getName(), llvm::MCAsmInfo::isValidUnquotedName(), llvm::report_fatal_error(), and llvm::MCAsmInfo::supportsNameQuoting().
Referenced by EmitGCCInlineAsmStr(), llvm::operator<<(), llvm::MCExpr::print(), printExpr(), llvm::HexagonAsmPrinter::printOperand(), llvm::ARMAsmPrinter::printOperand(), llvm::MipsAsmPrinter::printOperand(), llvm::MCSectionCOFF::PrintSwitchToSection(), and printSymbolOperand().
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Prepare this symbol to be redefined.
Definition at line 227 of file MCSymbol.h.
References IsRedefinable, setUndefined(), SymbolContents, SymContentsUnset, and SymContentsVariable.
Referenced by llvm::AsmPrinter::EmitFunctionEntryLabel(), and llvm::AsmPrinter::EmitGlobalVariable().
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Mark this symbol as being 'common'.
| Size | - The size of the symbol. |
| Align | - The alignment of the symbol. |
Definition at line 338 of file MCSymbol.h.
References assert(), CommonAlignLog2, CommonSize, getOffset(), llvm::isPowerOf2_32(), llvm::Log2_32(), NumCommonAlignmentBits, SymbolContents, and SymContentsCommon.
Referenced by declareCommon().
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Definition at line 387 of file MCSymbol.h.
References IsExternal, and Value.
Referenced by llvm::AMDGPUMCInstLower::lowerOperand().
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Set the (implementation defined) symbol flags.
Definition at line 403 of file MCSymbol.h.
References assert(), Flags, NumFlagsBits, and Value.
Referenced by llvm::MCSymbolELF::setBinding(), llvm::MCSymbolMachO::setDesc(), llvm::MCSymbolELF::setIsSignature(), llvm::MCSymbolELF::setIsWeakrefUsedInReloc(), llvm::MCSymbolELF::setOther(), llvm::MCSymbolELF::setType(), and llvm::MCSymbolELF::setVisibility().
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Mark the symbol as defined in the fragment F.
Definition at line 270 of file MCSymbol.h.
References assert(), FragmentAndHasName, and isVariable().
Referenced by llvm::MCStreamer::AssignFragment(), llvm::MCObjectStreamer::EmitLabel(), and llvm::MCStreamer::EmitLabel().
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Set the (implementation defined) index.
Definition at line 310 of file MCSymbol.h.
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Definition at line 207 of file MCSymbol.h.
References IsRegistered, and Value.
Referenced by llvm::MCAssembler::registerSymbol().
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Definition at line 320 of file MCSymbol.h.
References assert(), Offset, SymbolContents, SymContentsOffset, SymContentsUnset, and Value.
Referenced by llvm::MCObjectStreamer::EmitLabel().
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Definition at line 390 of file MCSymbol.h.
References IsPrivateExtern, and Value.
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Mark this symbol as redefinable.
Definition at line 225 of file MCSymbol.h.
References IsRedefinable, and Value.
Referenced by llvm::MCParserUtils::parseAssignmentExpression().
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Mark the symbol as undefined.
Definition at line 276 of file MCSymbol.h.
References FragmentAndHasName.
Referenced by redefineIfPossible(), and setVariableValue().
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Definition at line 220 of file MCSymbol.h.
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Definition at line 209 of file MCSymbol.h.
References IsUsedInReloc.
Definition at line 42 of file MCSymbol.cpp.
References assert(), IsUsed, setUndefined(), SymbolContents, SymContentsUnset, SymContentsVariable, and Value.
Referenced by llvm::MCStreamer::EmitAssignment(), and llvm::MCELFStreamer::EmitWeakReference().
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Definition at line 138 of file MCSymbol.h.
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Definition at line 137 of file MCSymbol.h.
| union { ... } |
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Definition at line 60 of file MCSymbol.h.
Referenced by llvm::MCExpr::findAssociatedFragment(), and isAbsolute().
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Definition at line 115 of file MCSymbol.h.
Referenced by getCommonAlignment(), and setCommon().
| uint64_t llvm::MCSymbol::CommonSize |
The size of the symbol, if it is 'common'.
Definition at line 130 of file MCSymbol.h.
Referenced by declareCommon(), getCommonSize(), and setCommon().
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Definition at line 120 of file MCSymbol.h.
Referenced by llvm::MCSymbolMachO::getEncodedFlags(), getFlags(), modifyFlags(), and setFlags().
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If a symbol has a Fragment, the section is implied, so we only need one pointer.
The special AbsolutePseudoFragment value is for absolute symbols. If this is a variable symbol, this caches the variable value's fragment. FIXME: We might be able to simplify this by having the asm streamer create dummy fragments. If this is a section, then it gives the symbol is defined in. This is null for undefined symbols.
If this is a fragment, then it gives the fragment this symbol's value is relative to, if any.
For the 'HasName' integer, this is true if this symbol is named. A named symbol will have a pointer to the name allocated in the bytes immediately prior to the MCSymbol.
Definition at line 77 of file MCSymbol.h.
Referenced by getFragment(), getName(), MCSymbol(), setFragment(), and setUndefined().
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Index field, for use by the object file implementation.
Definition at line 123 of file MCSymbol.h.
Referenced by getIndex(), and setIndex().
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This symbol is visible outside this translation unit.
Definition at line 93 of file MCSymbol.h.
Referenced by isExternal(), and setExternal().
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This symbol is private extern.
Definition at line 96 of file MCSymbol.h.
Referenced by isPrivateExtern(), and setPrivateExtern().
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True if this symbol can be redefined.
Definition at line 85 of file MCSymbol.h.
Referenced by isRedefinable(), redefineIfPossible(), and setRedefinable().
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Definition at line 90 of file MCSymbol.h.
Referenced by isRegistered(), and setIsRegistered().
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IsTemporary - True if this is an assembler temporary label, which typically does not survive in the .o file's symbol table.
Usually "Lfoo" or ".foo".
Definition at line 82 of file MCSymbol.h.
Referenced by isTemporary().
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IsUsed - True if this symbol has been used.
Definition at line 88 of file MCSymbol.h.
Referenced by getVariableValue(), isUsed(), setUsed(), and setVariableValue().
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True if we have created a relocation that uses this symbol.
Definition at line 103 of file MCSymbol.h.
Referenced by isUsedInReloc(), and setUsedInReloc().
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LLVM RTTI discriminator.
This is actually a SymbolKind enumerator, but is unsigned to avoid sign extension and achieve better bitpacking with MSVC.
Definition at line 100 of file MCSymbol.h.
| uint64_t llvm::MCSymbol::Offset |
The offset to apply to the fragment address to form this symbol's value.
Definition at line 127 of file MCSymbol.h.
Referenced by getOffset(), MCSymbol(), and setOffset().
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This is actually a Contents enumerator, but is unsigned to avoid sign extension and achieve better bitpacking with MSVC.
Definition at line 107 of file MCSymbol.h.
Referenced by getOffset(), isCommon(), isVariable(), redefineIfPossible(), setCommon(), setOffset(), and setVariableValue().
If non-null, the value for a variable symbol.
Definition at line 133 of file MCSymbol.h.
Referenced by getVariableValue(), setExternal(), setFlags(), setIndex(), setIsRegistered(), setOffset(), setPrivateExtern(), setRedefinable(), setUsed(), and setVariableValue().
1.8.6