mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
1aa5c896dc
This speeds up dumping specific DIEs by not parsing abbreviations for units that are not used. (this is also handy to have in eventually to speed up llvm-symbolizer for .dwp files, where parsing most of the DWP file can be avoided by using the index) llvm-svn: 313635
89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
//===- DWARFDebugAbbrev.h ---------------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_DEBUGINFO_DWARFDEBUGABBREV_H
|
|
#define LLVM_DEBUGINFO_DWARFDEBUGABBREV_H
|
|
|
|
#include "llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h"
|
|
#include "llvm/Support/DataExtractor.h"
|
|
#include <cstdint>
|
|
#include <map>
|
|
#include <vector>
|
|
|
|
namespace llvm {
|
|
|
|
class raw_ostream;
|
|
|
|
class DWARFAbbreviationDeclarationSet {
|
|
uint32_t Offset;
|
|
/// Code of the first abbreviation, if all abbreviations in the set have
|
|
/// consecutive codes. UINT32_MAX otherwise.
|
|
uint32_t FirstAbbrCode;
|
|
std::vector<DWARFAbbreviationDeclaration> Decls;
|
|
|
|
using const_iterator =
|
|
std::vector<DWARFAbbreviationDeclaration>::const_iterator;
|
|
|
|
public:
|
|
DWARFAbbreviationDeclarationSet();
|
|
|
|
uint32_t getOffset() const { return Offset; }
|
|
void dump(raw_ostream &OS) const;
|
|
bool extract(DataExtractor Data, uint32_t *OffsetPtr);
|
|
|
|
const DWARFAbbreviationDeclaration *
|
|
getAbbreviationDeclaration(uint32_t AbbrCode) const;
|
|
|
|
const_iterator begin() const {
|
|
return Decls.begin();
|
|
}
|
|
|
|
const_iterator end() const {
|
|
return Decls.end();
|
|
}
|
|
|
|
private:
|
|
void clear();
|
|
};
|
|
|
|
class DWARFDebugAbbrev {
|
|
using DWARFAbbreviationDeclarationSetMap =
|
|
std::map<uint64_t, DWARFAbbreviationDeclarationSet>;
|
|
|
|
mutable DWARFAbbreviationDeclarationSetMap AbbrDeclSets;
|
|
mutable DWARFAbbreviationDeclarationSetMap::const_iterator PrevAbbrOffsetPos;
|
|
mutable Optional<DataExtractor> Data;
|
|
|
|
public:
|
|
DWARFDebugAbbrev();
|
|
|
|
const DWARFAbbreviationDeclarationSet *
|
|
getAbbreviationDeclarationSet(uint64_t CUAbbrOffset) const;
|
|
|
|
void dump(raw_ostream &OS) const;
|
|
void parse() const;
|
|
void extract(DataExtractor Data);
|
|
|
|
DWARFAbbreviationDeclarationSetMap::const_iterator begin() const {
|
|
parse();
|
|
return AbbrDeclSets.begin();
|
|
}
|
|
|
|
DWARFAbbreviationDeclarationSetMap::const_iterator end() const {
|
|
return AbbrDeclSets.end();
|
|
}
|
|
|
|
private:
|
|
void clear();
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_DEBUGINFO_DWARFDEBUGABBREV_H
|