DWARFDebugInfoEntry.h [plain text]
#ifndef LLVM_DEBUGINFO_DWARFDEBUGINFOENTRY_H
#define LLVM_DEBUGINFO_DWARFDEBUGINFOENTRY_H
#include "DWARFAbbreviationDeclaration.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/DataTypes.h"
namespace llvm {
class DWARFDebugAranges;
class DWARFCompileUnit;
class DWARFUnit;
class DWARFContext;
class DWARFFormValue;
struct DWARFDebugInfoEntryInlinedChain;
class DWARFDebugInfoEntryMinimal {
uint32_t Offset;
uint32_t ParentIdx;
uint32_t SiblingIdx;
const DWARFAbbreviationDeclaration *AbbrevDecl;
public:
DWARFDebugInfoEntryMinimal()
: Offset(0), ParentIdx(0), SiblingIdx(0), AbbrevDecl(0) {}
void dump(raw_ostream &OS, const DWARFUnit *u, unsigned recurseDepth,
unsigned indent = 0) const;
void dumpAttribute(raw_ostream &OS, const DWARFUnit *u, uint32_t *offset_ptr,
uint16_t attr, uint16_t form, unsigned indent = 0) const;
bool extractFast(const DWARFUnit *U, uint32_t *OffsetPtr);
uint32_t getTag() const { return AbbrevDecl ? AbbrevDecl->getTag() : 0; }
bool isNULL() const { return AbbrevDecl == 0; }
bool isSubprogramDIE() const;
bool isSubroutineDIE() const;
uint32_t getOffset() const { return Offset; }
uint32_t getNumAttributes() const {
return !isNULL() ? AbbrevDecl->getNumAttributes() : 0;
}
bool hasChildren() const { return !isNULL() && AbbrevDecl->hasChildren(); }
DWARFDebugInfoEntryMinimal *getParent() {
return ParentIdx > 0 ? this - ParentIdx : 0;
}
const DWARFDebugInfoEntryMinimal *getParent() const {
return ParentIdx > 0 ? this - ParentIdx : 0;
}
DWARFDebugInfoEntryMinimal *getSibling() {
return SiblingIdx > 0 ? this + SiblingIdx : 0;
}
const DWARFDebugInfoEntryMinimal *getSibling() const {
return SiblingIdx > 0 ? this + SiblingIdx : 0;
}
DWARFDebugInfoEntryMinimal *getFirstChild() {
return hasChildren() ? this + 1 : 0;
}
const DWARFDebugInfoEntryMinimal *getFirstChild() const {
return hasChildren() ? this + 1 : 0;
}
void setParent(DWARFDebugInfoEntryMinimal *parent) {
if (parent) {
ParentIdx = this - parent;
} else
ParentIdx = 0;
}
void setSibling(DWARFDebugInfoEntryMinimal *sibling) {
if (sibling) {
SiblingIdx = sibling - this;
sibling->setParent(getParent());
} else
SiblingIdx = 0;
}
const DWARFAbbreviationDeclaration *getAbbreviationDeclarationPtr() const {
return AbbrevDecl;
}
bool getAttributeValue(const DWARFUnit *U, const uint16_t Attr,
DWARFFormValue &FormValue) const;
const char *getAttributeValueAsString(const DWARFUnit *U, const uint16_t Attr,
const char *FailValue) const;
uint64_t getAttributeValueAsAddress(const DWARFUnit *U, const uint16_t Attr,
uint64_t FailValue) const;
uint64_t getAttributeValueAsUnsignedConstant(const DWARFUnit *U,
const uint16_t Attr,
uint64_t FailValue) const;
uint64_t getAttributeValueAsReference(const DWARFUnit *U, const uint16_t Attr,
uint64_t FailValue) const;
uint64_t getAttributeValueAsSectionOffset(const DWARFUnit *U,
const uint16_t Attr,
uint64_t FailValue) const;
bool getLowAndHighPC(const DWARFUnit *U, uint64_t &LowPC,
uint64_t &HighPC) const;
void buildAddressRangeTable(const DWARFUnit *U,
DWARFDebugAranges *DebugAranges,
uint32_t CUOffsetInAranges) const;
bool addressRangeContainsAddress(const DWARFUnit *U,
const uint64_t Address) const;
const char *getSubroutineName(const DWARFUnit *U) const;
void getCallerFrame(const DWARFUnit *U, uint32_t &CallFile,
uint32_t &CallLine, uint32_t &CallColumn) const;
DWARFDebugInfoEntryInlinedChain
getInlinedChainForAddress(const DWARFUnit *U, const uint64_t Address) const;
};
struct DWARFDebugInfoEntryInlinedChain {
DWARFDebugInfoEntryInlinedChain() : U(0) {}
SmallVector<DWARFDebugInfoEntryMinimal, 4> DIEs;
const DWARFUnit *U;
};
}
#endif