mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
fe80f1da40
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139808 91177308-0d34-0410-b5e6-96231b3b80d8
112 lines
3.7 KiB
C++
112 lines
3.7 KiB
C++
//===-- DWARFCompileUnit.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_DWARFCOMPILEUNIT_H
|
|
#define LLVM_DEBUGINFO_DWARFCOMPILEUNIT_H
|
|
|
|
#include "DWARFDebugAbbrev.h"
|
|
#include "DWARFDebugInfoEntry.h"
|
|
#include <vector>
|
|
|
|
namespace llvm {
|
|
|
|
class DWARFContext;
|
|
class raw_ostream;
|
|
|
|
class DWARFCompileUnit {
|
|
DWARFContext &Context;
|
|
|
|
uint32_t Offset;
|
|
uint32_t Length;
|
|
uint16_t Version;
|
|
const DWARFAbbreviationDeclarationSet *Abbrevs;
|
|
uint8_t AddrSize;
|
|
uint64_t BaseAddr;
|
|
// The compile unit debug information entry item.
|
|
std::vector<DWARFDebugInfoEntryMinimal> DieArray;
|
|
public:
|
|
DWARFCompileUnit(DWARFContext &context) : Context(context) {
|
|
clear();
|
|
}
|
|
|
|
DWARFContext &getContext() const { return Context; }
|
|
DataExtractor getDebugInfoExtractor() const;
|
|
|
|
bool extract(DataExtractor debug_info, uint32_t* offset_ptr);
|
|
uint32_t extract(uint32_t offset, DataExtractor debug_info_data,
|
|
const DWARFAbbreviationDeclarationSet *abbrevs);
|
|
|
|
/// extractDIEsIfNeeded - Parses a compile unit and indexes its DIEs if it
|
|
/// hasn't already been done.
|
|
size_t extractDIEsIfNeeded(bool cu_die_only);
|
|
void clear();
|
|
void dump(raw_ostream &OS);
|
|
uint32_t getOffset() const { return Offset; }
|
|
/// Size in bytes of the compile unit header.
|
|
uint32_t getSize() const { return 11; }
|
|
bool containsDIEOffset(uint32_t die_offset) const {
|
|
return die_offset >= getFirstDIEOffset() &&
|
|
die_offset < getNextCompileUnitOffset();
|
|
}
|
|
uint32_t getFirstDIEOffset() const { return Offset + getSize(); }
|
|
uint32_t getNextCompileUnitOffset() const { return Offset + Length + 4; }
|
|
/// Size in bytes of the .debug_info data associated with this compile unit.
|
|
size_t getDebugInfoSize() const { return Length + 4 - getSize(); }
|
|
uint32_t getLength() const { return Length; }
|
|
uint16_t getVersion() const { return Version; }
|
|
const DWARFAbbreviationDeclarationSet *getAbbreviations() const {
|
|
return Abbrevs;
|
|
}
|
|
uint8_t getAddressByteSize() const { return AddrSize; }
|
|
uint64_t getBaseAddress() const { return BaseAddr; }
|
|
|
|
void setBaseAddress(uint64_t base_addr) {
|
|
BaseAddr = base_addr;
|
|
}
|
|
|
|
const DWARFDebugInfoEntryMinimal *
|
|
getCompileUnitDIE(bool extract_cu_die_only = true) {
|
|
extractDIEsIfNeeded(extract_cu_die_only);
|
|
if (DieArray.empty())
|
|
return NULL;
|
|
return &DieArray[0];
|
|
}
|
|
|
|
/// setDIERelations - We read in all of the DIE entries into our flat list
|
|
/// of DIE entries and now we need to go back through all of them and set the
|
|
/// parent, sibling and child pointers for quick DIE navigation.
|
|
void setDIERelations();
|
|
|
|
void addDIE(DWARFDebugInfoEntryMinimal &die) {
|
|
// The average bytes per DIE entry has been seen to be
|
|
// around 14-20 so lets pre-reserve the needed memory for
|
|
// our DIE entries accordingly. Search forward for "Compute
|
|
// average bytes per DIE" to see #if'ed out code that does
|
|
// that determination.
|
|
|
|
// Only reserve the memory if we are adding children of
|
|
// the main compile unit DIE. The compile unit DIE is always
|
|
// the first entry, so if our size is 1, then we are adding
|
|
// the first compile unit child DIE and should reserve
|
|
// the memory.
|
|
if (DieArray.empty())
|
|
DieArray.reserve(getDebugInfoSize() / 14);
|
|
DieArray.push_back(die);
|
|
}
|
|
|
|
void clearDIEs(bool keep_compile_unit_die);
|
|
|
|
void buildAddressRangeTable(DWARFDebugAranges *debug_aranges,
|
|
bool clear_dies_if_already_not_parsed);
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|