LLVM  8.0.0svn
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llvm::DWARFFormValue Class Reference

#include "llvm/DebugInfo/DWARF/DWARFFormValue.h"

Public Types

enum  FormClass {
  FC_Unknown, FC_Address, FC_Block, FC_Constant,
  FC_String, FC_Flag, FC_Reference, FC_Indirect,
  FC_SectionOffset, FC_Exprloc
}
 

Public Member Functions

 DWARFFormValue (dwarf::Form F=dwarf::Form(0))
 Context for extract time. More...
 
dwarf::Form getForm () const
 
uint64_t getRawUValue () const
 
uint64_t getSectionIndex () const
 
void setForm (dwarf::Form F)
 
void setUValue (uint64_t V)
 
void setSValue (int64_t V)
 
void setPValue (const char *V)
 
void setBlockValue (const ArrayRef< uint8_t > &Data)
 
bool isFormClass (FormClass FC) const
 
const DWARFUnitgetUnit () const
 
void dump (raw_ostream &OS, DIDumpOptions DumpOpts=DIDumpOptions()) const
 
bool extractValue (const DWARFDataExtractor &Data, uint32_t *OffsetPtr, dwarf::FormParams FormParams, const DWARFContext *Context=nullptr, const DWARFUnit *Unit=nullptr)
 Extracts a value in Data at offset *OffsetPtr. More...
 
bool extractValue (const DWARFDataExtractor &Data, uint32_t *OffsetPtr, dwarf::FormParams FormParams, const DWARFUnit *U)
 
bool isInlinedCStr () const
 
Optional< uint64_t > getAsReference () const
 getAsFoo functions below return the extracted value as Foo if only DWARFFormValue has form class is suitable for representing Foo. More...
 
Optional< uint64_t > getAsUnsignedConstant () const
 
Optional< int64_t > getAsSignedConstant () const
 
Optional< const char * > getAsCString () const
 
Optional< uint64_t > getAsAddress () const
 
Optional< SectionedAddressgetAsSectionedAddress () const
 
Optional< uint64_t > getAsSectionOffset () const
 
Optional< ArrayRef< uint8_t > > getAsBlock () const
 
Optional< uint64_t > getAsCStringOffset () const
 
Optional< uint64_t > getAsReferenceUVal () const
 
bool skipValue (DataExtractor DebugInfoData, uint32_t *OffsetPtr, const dwarf::FormParams Params) const
 Skip a form's value in DebugInfoData at the offset specified by OffsetPtr. More...
 

Static Public Member Functions

static bool skipValue (dwarf::Form Form, DataExtractor DebugInfoData, uint32_t *OffsetPtr, const dwarf::FormParams FormParams)
 Skip a form's value in DebugInfoData at the offset specified by OffsetPtr. More...
 

Detailed Description

Definition at line 27 of file DWARFFormValue.h.

Member Enumeration Documentation

◆ FormClass

Enumerator
FC_Unknown 
FC_Address 
FC_Block 
FC_Constant 
FC_String 
FC_Flag 
FC_Reference 
FC_Indirect 
FC_SectionOffset 
FC_Exprloc 

Definition at line 29 of file DWARFFormValue.h.

Constructor & Destructor Documentation

◆ DWARFFormValue()

llvm::DWARFFormValue::DWARFFormValue ( dwarf::Form  F = dwarf::Form(0))
inline

Context for extract time.

Definition at line 60 of file DWARFFormValue.h.

Member Function Documentation

◆ dump()

void DWARFFormValue::dump ( raw_ostream OS,
DIDumpOptions  DumpOpts = DIDumpOptions() 
) const

◆ extractValue() [1/2]

bool DWARFFormValue::extractValue ( const DWARFDataExtractor Data,
uint32_t OffsetPtr,
dwarf::FormParams  FormParams,
const DWARFContext Context = nullptr,
const DWARFUnit Unit = nullptr 
)

◆ extractValue() [2/2]

bool llvm::DWARFFormValue::extractValue ( const DWARFDataExtractor Data,
uint32_t OffsetPtr,
dwarf::FormParams  FormParams,
const DWARFUnit U 
)
inline

Definition at line 88 of file DWARFFormValue.h.

References extractValue().

◆ getAsAddress()

Optional< uint64_t > DWARFFormValue::getAsAddress ( ) const

Definition at line 564 of file DWARFFormValue.cpp.

References llvm::None.

◆ getAsBlock()

Optional< ArrayRef< uint8_t > > DWARFFormValue::getAsBlock ( ) const

◆ getAsCString()

Optional< const char * > DWARFFormValue::getAsCString ( ) const

◆ getAsCStringOffset()

Optional< uint64_t > DWARFFormValue::getAsCStringOffset ( ) const

Definition at line 644 of file DWARFFormValue.cpp.

References llvm::None.

◆ getAsReference()

Optional< uint64_t > DWARFFormValue::getAsReference ( ) const

getAsFoo functions below return the extracted value as Foo if only DWARFFormValue has form class is suitable for representing Foo.

Definition at line 584 of file DWARFFormValue.cpp.

References llvm::None.

Referenced by llvm::DWARFVerifier::handleDebugInfo().

◆ getAsReferenceUVal()

Optional< uint64_t > DWARFFormValue::getAsReferenceUVal ( ) const

Definition at line 650 of file DWARFFormValue.cpp.

References llvm::None.

◆ getAsSectionedAddress()

Optional< SectionedAddress > DWARFFormValue::getAsSectionedAddress ( ) const

Definition at line 569 of file DWARFFormValue.cpp.

References llvm::None.

◆ getAsSectionOffset()

Optional< uint64_t > DWARFFormValue::getAsSectionOffset ( ) const

◆ getAsSignedConstant()

Optional< int64_t > DWARFFormValue::getAsSignedConstant ( ) const

Definition at line 618 of file DWARFFormValue.cpp.

References llvm::max(), and llvm::None.

◆ getAsUnsignedConstant()

Optional< uint64_t > DWARFFormValue::getAsUnsignedConstant ( ) const

◆ getForm()

dwarf::Form llvm::DWARFFormValue::getForm ( ) const
inline

◆ getRawUValue()

uint64_t llvm::DWARFFormValue::getRawUValue ( ) const
inline

◆ getSectionIndex()

uint64_t llvm::DWARFFormValue::getSectionIndex ( ) const
inline

Definition at line 64 of file DWARFFormValue.h.

◆ getUnit()

const DWARFUnit* llvm::DWARFFormValue::getUnit ( ) const
inline

Definition at line 76 of file DWARFFormValue.h.

References Context, llvm::Data, dump(), extractValue(), and Unit.

◆ isFormClass()

bool DWARFFormValue::isFormClass ( DWARFFormValue::FormClass  FC) const

◆ isInlinedCStr()

bool llvm::DWARFFormValue::isInlinedCStr ( ) const
inline

Definition at line 93 of file DWARFFormValue.h.

◆ setBlockValue()

void llvm::DWARFFormValue::setBlockValue ( const ArrayRef< uint8_t > &  Data)
inline

◆ setForm()

void llvm::DWARFFormValue::setForm ( dwarf::Form  F)
inline

Definition at line 65 of file DWARFFormValue.h.

References F().

Referenced by llvm::DWARFDebugLine::LineTable::parse(), and parseV2DirFileTables().

◆ setPValue()

void llvm::DWARFFormValue::setPValue ( const char V)
inline

◆ setSValue()

void llvm::DWARFFormValue::setSValue ( int64_t  V)
inline

◆ setUValue()

void llvm::DWARFFormValue::setUValue ( uint64_t  V)
inline

Definition at line 66 of file DWARFFormValue.h.

Referenced by dumpAttribute(), and setBlockValue().

◆ skipValue() [1/2]

bool llvm::DWARFFormValue::skipValue ( DataExtractor  DebugInfoData,
uint32_t OffsetPtr,
const dwarf::FormParams  Params 
) const
inline

Skip a form's value in DebugInfoData at the offset specified by OffsetPtr.

Skips the bytes for the current form and updates the offset.

Parameters
DebugInfoDataThe data where we want to skip the value.
OffsetPtrA reference to the offset that will be updated.
ParamsDWARF parameters to help interpret forms.
Returns
true on success, false if the form was not skipped.

Definition at line 119 of file DWARFFormValue.h.

Referenced by llvm::DWARFDebugInfoEntry::extractFast(), llvm::DWARFAbbreviationDeclaration::getAttributeValue(), and parseV5DirFileTables().

◆ skipValue() [2/2]

bool DWARFFormValue::skipValue ( dwarf::Form  Form,
DataExtractor  DebugInfoData,
uint32_t OffsetPtr,
const dwarf::FormParams  FormParams 
)
static

Skip a form's value in DebugInfoData at the offset specified by OffsetPtr.

Skips the bytes for the specified form and updates the offset.

Parameters
FormThe DW_FORM enumeration that indicates the form to skip.
DebugInfoDataThe data where we want to skip the value.
OffsetPtrA reference to the offset that will be updated.
FormParamsDWARF parameters to help interpret forms.
Returns
true on success, false if the form was not skipped.

Definition at line 81 of file DWARFFormValue.cpp.

References llvm::DataExtractor::getCStr(), llvm::dwarf::getFixedFormByteSize(), llvm::DataExtractor::getSLEB128(), llvm::DataExtractor::getU16(), llvm::DataExtractor::getU32(), llvm::DataExtractor::getU8(), llvm::DataExtractor::getULEB128(), and llvm::size().


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