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//===-- DWARFDebugInfoEntry.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_LIB_DEBUGINFO_DWARFDEBUGINFOENTRY_H
#define LLVM_LIB_DEBUGINFO_DWARFDEBUGINFOENTRY_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/DebugInfo/DIContext.h"
#include "llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h"
#include "llvm/DebugInfo/DWARF/DWARFDebugRangeList.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/Dwarf.h"
namespace llvm {
class DWARFDebugAranges;
class DWARFCompileUnit;
class DWARFUnit;
class DWARFContext;
class DWARFFormValue;
struct DWARFDebugInfoEntryInlinedChain;
/// DWARFDebugInfoEntry - A DIE with only the minimum required data.
class DWARFDebugInfoEntry {
/// Offset within the .debug_info of the start of this entry.
uint32_t Offset;
/// The integer depth of this DIE within the compile unit DIEs where the
/// compile/type unit DIE has a depth of zero.
uint32_t Depth;
const DWARFAbbreviationDeclaration *AbbrevDecl;
public:
DWARFDebugInfoEntry()
: Offset(0), Depth(0), AbbrevDecl(nullptr) {}
/// Extracts a debug info entry, which is a child of a given unit,
/// starting at a given offset. If DIE can't be extracted, returns false and
/// doesn't change OffsetPtr.
bool extractFast(const DWARFUnit &U, uint32_t *OffsetPtr);
/// High performance extraction should use this call.
bool extractFast(const DWARFUnit &U, uint32_t *OffsetPtr,
const DataExtractor &DebugInfoData,
uint32_t UEndOffset,
uint32_t Depth);
uint32_t getOffset() const { return Offset; }
uint32_t getDepth() const { return Depth; }
dwarf::Tag getTag() const {
return AbbrevDecl ? AbbrevDecl->getTag() : dwarf::DW_TAG_null;
}
bool hasChildren() const { return AbbrevDecl && AbbrevDecl->hasChildren(); }
const DWARFAbbreviationDeclaration *getAbbreviationDeclarationPtr() const {
return AbbrevDecl;
}
};
}
#endif
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