LLVM  7.0.0svn
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llvm::DWARFDebugNames Class Reference

.debug_names section consists of one or more units. More...

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

Inheritance diagram for llvm::DWARFDebugNames:
Inheritance graph
Collaboration diagram for llvm::DWARFDebugNames:
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struct  Abbrev
 Abbreviation describing the encoding of Name Index entries. More...
struct  AttributeEncoding
 Index attribute and its encoding. More...
struct  Entry
 A single entry in the Name Index. More...
struct  Header
 Dwarf 5 Name Index header. More...
class  NameIndex
 Represents a single accelerator table within the Dwarf 5 .debug_names section. More...

Public Member Functions

 DWARFDebugNames (const DWARFDataExtractor &AccelSection, DataExtractor StringSection)
llvm::Error extract () override
void dump (raw_ostream &OS) const override
- Public Member Functions inherited from llvm::DWARFAcceleratorTable
 DWARFAcceleratorTable (const DWARFDataExtractor &AccelSection, DataExtractor StringSection)
virtual ~DWARFAcceleratorTable ()
 DWARFAcceleratorTable (const DWARFAcceleratorTable &)=delete
void operator= (const DWARFAcceleratorTable &)=delete

Additional Inherited Members

- Protected Attributes inherited from llvm::DWARFAcceleratorTable
DWARFDataExtractor AccelSection
DataExtractor StringSection

Detailed Description

.debug_names section consists of one or more units.

Each unit starts with a header, which is followed by a list of compilation units, local and foreign type units.

These may be followed by an (optional) hash lookup table, which consists of an array of buckets and hashes similar to the apple tables above. The only difference is that the hashes array is 1-based, and consequently an empty bucket is denoted by 0 and not UINT32_MAX.

Next is the name table, which consists of an array of names and array of entry offsets. This is different from the apple tables, which store names next to the actual entries.

The structure of the entries is described by an abbreviations table, which comes after the name table. Unlike the apple tables, which have a uniform entry structure described in the header, each .debug_names entry may have different index attributes (DW_IDX_???) attached to it.

The last segment consists of a list of entries, which is a 0-terminated list referenced by the name table and interpreted with the help of the abbreviation table.

Definition at line 166 of file DWARFAcceleratorTable.h.

Constructor & Destructor Documentation

◆ DWARFDebugNames()

llvm::DWARFDebugNames::DWARFDebugNames ( const DWARFDataExtractor AccelSection,
DataExtractor  StringSection 

Member Function Documentation

◆ dump()

LLVM_DUMP_METHOD void DWARFDebugNames::dump ( raw_ostream OS) const

Implements llvm::DWARFAcceleratorTable.

Definition at line 695 of file DWARFAcceleratorTable.cpp.

References llvm::RISCVFenceField::W.

Referenced by llvm::DWARFContext::dump().

◆ extract()

llvm::Error DWARFDebugNames::extract ( )

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