}
-/// Unit - Unit constructor.
DwarfUnit::DwarfUnit(unsigned UID, dwarf::Tag UnitTag, DICompileUnit Node,
AsmPrinter *A, DwarfDebug *DW, DwarfFile *DWU)
: UniqueID(UID), CUNode(Node), UnitDie(UnitTag), DebugInfoOffset(0), Asm(A),
addSectionOffset(UnitDie, dwarf::DW_AT_stmt_list, 0);
}
-/// ~Unit - Destructor for compile unit.
DwarfUnit::~DwarfUnit() {
for (unsigned j = 0, M = DIEBlocks.size(); j < M; ++j)
DIEBlocks[j]->~DIEBlock();
DIELocs[j]->~DIELoc();
}
-/// createDIEEntry - Creates a new DIEEntry to be a proxy for a debug
-/// information entry.
DIEEntry *DwarfUnit::createDIEEntry(DIE &Entry) {
DIEEntry *Value = new (DIEValueAllocator) DIEEntry(Entry);
return Value;
}
-/// getDefaultLowerBound - Return the default lower bound for an array. If the
-/// DWARF version doesn't handle the language, return -1.
int64_t DwarfUnit::getDefaultLowerBound() const {
switch (getLanguage()) {
default:
!GenerateDwarfTypeUnits;
}
-/// getDIE - Returns the debug information entry map slot for the
-/// specified debug variable. We delegate the request to DwarfDebug
-/// when the DIE for this MDNode can be shared across CUs. The mappings
-/// will be kept in DwarfDebug for shareable DIEs.
DIE *DwarfUnit::getDIE(const DebugNode *D) const {
if (isShareableAcrossCUs(D))
return DU->getDIE(D);
return MDNodeToDieMap.lookup(D);
}
-/// insertDIE - Insert DIE into the map. We delegate the request to DwarfDebug
-/// when the DIE for this MDNode can be shared across CUs. The mappings
-/// will be kept in DwarfDebug for shareable DIEs.
void DwarfUnit::insertDIE(const DebugNode *Desc, DIE *D) {
if (isShareableAcrossCUs(Desc)) {
DU->insertDIE(Desc, D);
MDNodeToDieMap.insert(std::make_pair(Desc, D));
}
-/// addFlag - Add a flag that is true.
void DwarfUnit::addFlag(DIE &Die, dwarf::Attribute Attribute) {
if (DD->getDwarfVersion() >= 4)
Die.addValue(Attribute, dwarf::DW_FORM_flag_present, DIEIntegerOne);
Die.addValue(Attribute, dwarf::DW_FORM_flag, DIEIntegerOne);
}
-/// addUInt - Add an unsigned integer attribute data and value.
-///
void DwarfUnit::addUInt(DIE &Die, dwarf::Attribute Attribute,
Optional<dwarf::Form> Form, uint64_t Integer) {
if (!Form)
addUInt(Block, (dwarf::Attribute)0, Form, Integer);
}
-/// addSInt - Add an signed integer attribute data and value.
-///
void DwarfUnit::addSInt(DIE &Die, dwarf::Attribute Attribute,
Optional<dwarf::Form> Form, int64_t Integer) {
if (!Form)
addSInt(Die, (dwarf::Attribute)0, Form, Integer);
}
-/// addString - Add a string attribute data and value. We always emit a
-/// reference to the string pool instead of immediate strings so that DIEs have
-/// more predictable sizes. In the case of split dwarf we emit an index
-/// into another table which gets us the static offset into the string
-/// table.
void DwarfUnit::addString(DIE &Die, dwarf::Attribute Attribute,
StringRef String) {
if (!isDwoUnit())
Die.addValue(Attribute, dwarf::DW_FORM_GNU_str_index, Str);
}
-/// addLocalString - Add a string attribute data and value. This is guaranteed
-/// to be in the local string pool instead of indirected.
void DwarfUnit::addLocalString(DIE &Die, dwarf::Attribute Attribute,
StringRef String) {
const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
Die.addValue(Attribute, dwarf::DW_FORM_strp, Str);
}
-/// addLabel - Add a Dwarf label attribute data and value.
-///
void DwarfUnit::addLabel(DIE &Die, dwarf::Attribute Attribute, dwarf::Form Form,
const MCSymbol *Label) {
DIEValue *Value = new (DIEValueAllocator) DIELabel(Label);
addLabel(Die, (dwarf::Attribute)0, Form, Label);
}
-/// addSectionOffset - Add an offset into a section attribute data and value.
-///
void DwarfUnit::addSectionOffset(DIE &Die, dwarf::Attribute Attribute,
uint64_t Integer) {
if (DD->getDwarfVersion() >= 4)
: getCU().getOrCreateSourceID(FileName, DirName);
}
-/// addOpAddress - Add a dwarf op address data and value using the
-/// form given and an op of either DW_FORM_addr or DW_FORM_GNU_addr_index.
-///
void DwarfUnit::addOpAddress(DIELoc &Die, const MCSymbol *Sym) {
if (!DD->useSplitDwarf()) {
addUInt(Die, dwarf::DW_FORM_data1, dwarf::DW_OP_addr);
Die.addValue(Attribute, dwarf::DW_FORM_data4, Value);
}
-/// addDIEEntry - Add a DIE attribute data and value.
-///
void DwarfUnit::addDIEEntry(DIE &Die, dwarf::Attribute Attribute, DIE &Entry) {
addDIEEntry(Die, Attribute, createDIEEntry(Entry));
}
Entry);
}
-/// Create a DIE with the given Tag, add the DIE to its parent, and
-/// call insertDIE if MD is not null.
DIE &DwarfUnit::createAndAddDIE(unsigned Tag, DIE &Parent, const DebugNode *N) {
assert(Tag != dwarf::DW_TAG_auto_variable &&
Tag != dwarf::DW_TAG_arg_variable);
return Die;
}
-/// addBlock - Add block data.
-///
void DwarfUnit::addBlock(DIE &Die, dwarf::Attribute Attribute, DIELoc *Loc) {
Loc->ComputeSize(Asm);
DIELocs.push_back(Loc); // Memoize so we can call the destructor later on.
Die.addValue(Attribute, Block->BestForm(), Block);
}
-/// addSourceLine - Add location information to specified debug information
-/// entry.
void DwarfUnit::addSourceLine(DIE &Die, unsigned Line, StringRef File,
StringRef Directory) {
if (Line == 0)
addUInt(Die, dwarf::DW_AT_decl_line, None, Line);
}
-/// addSourceLine - Add location information to specified debug information
-/// entry.
void DwarfUnit::addSourceLine(DIE &Die, DIVariable V) {
assert(V);
V->getScope()->getDirectory());
}
-/// addSourceLine - Add location information to specified debug information
-/// entry.
void DwarfUnit::addSourceLine(DIE &Die, DIGlobalVariable G) {
assert(G);
addSourceLine(Die, G->getLine(), G->getFilename(), G->getDirectory());
}
-/// addSourceLine - Add location information to specified debug information
-/// entry.
void DwarfUnit::addSourceLine(DIE &Die, DISubprogram SP) {
assert(SP);
addSourceLine(Die, SP->getLine(), SP->getFilename(), SP->getDirectory());
}
-/// addSourceLine - Add location information to specified debug information
-/// entry.
void DwarfUnit::addSourceLine(DIE &Die, const MDType *Ty) {
assert(Ty);
addSourceLine(Die, Ty->getLine(), Ty->getFilename(), Ty->getDirectory());
}
-/// addSourceLine - Add location information to specified debug information
-/// entry.
void DwarfUnit::addSourceLine(DIE &Die, DIObjCProperty Ty) {
assert(Ty);
addSourceLine(Die, Ty->getLine(), Ty->getFilename(), Ty->getDirectory());
}
-/// addSourceLine - Add location information to specified debug information
-/// entry.
void DwarfUnit::addSourceLine(DIE &Die, DINameSpace NS) {
addSourceLine(Die, NS->getLine(), NS->getFilename(), NS->getDirectory());
}
-/// addRegisterOp - Add register operand.
bool DwarfUnit::addRegisterOpPiece(DIELoc &TheDie, unsigned Reg,
unsigned SizeInBits, unsigned OffsetInBits) {
DIEDwarfExpression Expr(*Asm, *this, TheDie);
return true;
}
-/// addRegisterOffset - Add register offset.
bool DwarfUnit::addRegisterOffset(DIELoc &TheDie, unsigned Reg,
int64_t Offset) {
DIEDwarfExpression Expr(*Asm, *this, TheDie);
That is what this function does. */
-/// addBlockByrefAddress - Start with the address based on the location
-/// provided, and generate the DWARF information necessary to find the
-/// actual Block variable (navigating the Block struct) based on the
-/// starting location. Add the DWARF information to the die. For
-/// more information, read large comment just above here.
-///
void DwarfUnit::addBlockByrefAddress(const DbgVariable &DV, DIE &Die,
dwarf::Attribute Attribute,
const MachineLocation &Location) {
return BaseType->getSizeInBits();
}
-/// addConstantFPValue - Add constant value entry in variable DIE.
void DwarfUnit::addConstantFPValue(DIE &Die, const MachineOperand &MO) {
assert(MO.isFPImm() && "Invalid machine operand!");
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
addBlock(Die, dwarf::DW_AT_const_value, Block);
}
-/// addConstantFPValue - Add constant value entry in variable DIE.
void DwarfUnit::addConstantFPValue(DIE &Die, const ConstantFP *CFP) {
// Pass this down to addConstantValue as an unsigned bag of bits.
addConstantValue(Die, CFP->getValueAPF().bitcastToAPInt(), true);
}
-/// addConstantValue - Add constant value entry in variable DIE.
void DwarfUnit::addConstantValue(DIE &Die, const ConstantInt *CI,
const MDType *Ty) {
addConstantValue(Die, CI->getValue(), Ty);
}
-/// addConstantValue - Add constant value entry in variable DIE.
void DwarfUnit::addConstantValue(DIE &Die, const MachineOperand &MO,
const MDType *Ty) {
assert(MO.isImm() && "Invalid machine operand!");
addConstantValue(Die, Val, isUnsignedDIType(DD, Ty));
}
-// addConstantValue - Add constant value entry in variable DIE.
void DwarfUnit::addConstantValue(DIE &Die, const APInt &Val, bool Unsigned) {
unsigned CIBitWidth = Val.getBitWidth();
if (CIBitWidth <= 64) {
addBlock(Die, dwarf::DW_AT_const_value, Block);
}
-// Add a linkage name to the DIE.
void DwarfUnit::addLinkageName(DIE &Die, StringRef LinkageName) {
if (!LinkageName.empty())
addString(Die,
GlobalValue::getRealLinkageName(LinkageName));
}
-/// addTemplateParams - Add template parameters into buffer.
void DwarfUnit::addTemplateParams(DIE &Buffer, DIArray TParams) {
// Add template parameters.
for (const auto *Element : TParams) {
}
}
-/// getOrCreateContextDIE - Get context owner's DIE.
DIE *DwarfUnit::getOrCreateContextDIE(const MDScope *Context) {
if (!Context || isa<MDFile>(Context))
return &getUnitDie();
return &TyDIE;
}
-/// getOrCreateTypeDIE - Find existing DIE or create new DIE for the
-/// given type.
DIE *DwarfUnit::getOrCreateTypeDIE(const MDNode *TyNode) {
if (!TyNode)
return nullptr;
}
}
-/// addType - Add a new type attribute to the specified entity.
void DwarfUnit::addType(DIE &Entity, const MDType *Ty,
dwarf::Attribute Attribute) {
assert(Ty && "Trying to add a type that doesn't exist?");
addDIEEntry(Entity, Attribute, Entry);
}
-/// getParentContextString - Walks the metadata parent chain in a language
-/// specific manner (using the compile unit language) and returns
-/// it as a string. This is done at the metadata level because DIEs may
-/// not currently have been added to the parent context and walking the
-/// DIEs looking for names is more expensive than walking the metadata.
std::string DwarfUnit::getParentContextString(const MDScope *Context) const {
if (!Context)
return "";
return CS;
}
-/// constructTypeDIE - Construct basic type die from DIBasicType.
void DwarfUnit::constructTypeDIE(DIE &Buffer, DIBasicType BTy) {
// Get core information.
StringRef Name = BTy->getName();
addUInt(Buffer, dwarf::DW_AT_byte_size, None, Size);
}
-/// constructTypeDIE - Construct derived type die from DIDerivedType.
void DwarfUnit::constructTypeDIE(DIE &Buffer, DIDerivedType DTy) {
// Get core information.
StringRef Name = DTy->getName();
addSourceLine(Buffer, DTy);
}
-/// constructSubprogramArguments - Construct function argument DIEs.
void DwarfUnit::constructSubprogramArguments(DIE &Buffer, DITypeArray Args) {
for (unsigned i = 1, N = Args.size(); i < N; ++i) {
const MDType *Ty = resolve(Args[i]);
}
}
-/// constructTypeDIE - Construct type DIE from DICompositeType.
void DwarfUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
// Add name if not anonymous or intermediate type.
StringRef Name = CTy->getName();
}
}
-/// constructTemplateTypeParameterDIE - Construct new DIE for the given
-/// DITemplateTypeParameter.
void DwarfUnit::constructTemplateTypeParameterDIE(DIE &Buffer,
DITemplateTypeParameter TP) {
DIE &ParamDIE =
addString(ParamDIE, dwarf::DW_AT_name, TP->getName());
}
-/// constructTemplateValueParameterDIE - Construct new DIE for the given
-/// DITemplateValueParameter.
void
DwarfUnit::constructTemplateValueParameterDIE(DIE &Buffer,
DITemplateValueParameter VP) {
}
}
-/// getOrCreateNameSpace - Create a DIE for DINameSpace.
DIE *DwarfUnit::getOrCreateNameSpace(DINameSpace NS) {
// Construct the context before querying for the existence of the DIE in case
// such construction creates the DIE.
return &NDie;
}
-/// getOrCreateSubprogramDIE - Create new DIE using SP.
DIE *DwarfUnit::getOrCreateSubprogramDIE(DISubprogram SP, bool Minimal) {
// Construct the context before querying for the existence of the DIE in case
// such construction creates the DIE (as is the case for member function
addFlag(SPDie, dwarf::DW_AT_explicit);
}
-/// constructSubrangeDIE - Construct subrange DIE from DISubrange.
void DwarfUnit::constructSubrangeDIE(DIE &Buffer, DISubrange SR, DIE *IndexTy) {
DIE &DW_Subrange = createAndAddDIE(dwarf::DW_TAG_subrange_type, Buffer);
addDIEEntry(DW_Subrange, dwarf::DW_AT_type, *IndexTy);
return IndexTyDie;
}
-/// constructArrayTypeDIE - Construct array type DIE from DICompositeType.
void DwarfUnit::constructArrayTypeDIE(DIE &Buffer, DICompositeType CTy) {
if (CTy->isVector())
addFlag(Buffer, dwarf::DW_AT_GNU_vector);
}
}
-/// constructEnumTypeDIE - Construct an enum type DIE from DICompositeType.
void DwarfUnit::constructEnumTypeDIE(DIE &Buffer, DICompositeType CTy) {
DIArray Elements = CTy->getElements();
}
}
-/// constructContainingTypeDIEs - Construct DIEs for types that contain
-/// vtables.
void DwarfUnit::constructContainingTypeDIEs() {
for (auto CI = ContainingTypeMap.begin(), CE = ContainingTypeMap.end();
CI != CE; ++CI) {
}
}
-/// constructMemberDIE - Construct member DIE from DIDerivedType.
void DwarfUnit::constructMemberDIE(DIE &Buffer, DIDerivedType DT_) {
// Downcast to MDDerivedType.
const MDDerivedType *DT = cast<MDDerivedType>(DT_);
addFlag(MemberDie, dwarf::DW_AT_artificial);
}
-/// getOrCreateStaticMemberDIE - Create new DIE for C++ static member.
DIE *DwarfUnit::getOrCreateStaticMemberDIE(DIDerivedType DT_) {
const MDDerivedType *DT = cast_or_null<MDDerivedType>(DT_);
if (!DT)
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