//===----------------------------------------------------------------------===//
#include "DwarfUnit.h"
-
#include "DwarfAccelTable.h"
#include "DwarfCompileUnit.h"
#include "DwarfDebug.h"
+#include "DwarfExpression.h"
#include "llvm/ADT/APFloat.h"
+#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DIBuilder.h"
#include "llvm/IR/DataLayout.h"
cl::desc("Generate DWARF4 type units."),
cl::init(false));
-/// Unit - Unit constructor.
+DIEDwarfExpression::DIEDwarfExpression(const AsmPrinter &AP, DwarfUnit &DU,
+ DIELoc &DIE)
+ : DwarfExpression(*AP.MF->getSubtarget().getRegisterInfo(),
+ AP.getDwarfDebug()->getDwarfVersion()),
+ AP(AP), DU(DU), DIE(DIE) {}
+
+void DIEDwarfExpression::EmitOp(uint8_t Op, const char* Comment) {
+ DU.addUInt(DIE, dwarf::DW_FORM_data1, Op);
+}
+void DIEDwarfExpression::EmitSigned(int64_t Value) {
+ DU.addSInt(DIE, dwarf::DW_FORM_sdata, Value);
+}
+void DIEDwarfExpression::EmitUnsigned(uint64_t Value) {
+ DU.addUInt(DIE, dwarf::DW_FORM_udata, Value);
+}
+bool DIEDwarfExpression::isFrameRegister(unsigned MachineReg) {
+ return MachineReg == TRI.getFrameRegister(*AP.MF);
+}
+
+
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),
- DD(DW), DU(DWU), IndexTyDie(nullptr), Section(nullptr),
- Skeleton(nullptr) {
+ DD(DW), DU(DWU), IndexTyDie(nullptr), Section(nullptr) {
assert(UnitTag == dwarf::DW_TAG_compile_unit ||
UnitTag == dwarf::DW_TAG_type_unit);
DIEIntegerOne = new (DIEValueAllocator) DIEInteger(1);
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:
if (dwarf::DWARF_VERSION >= 4)
return 1;
break;
+
+ // The languages below have valid values only if the DWARF version >= 5.
+ case dwarf::DW_LANG_OpenCL:
+ case dwarf::DW_LANG_Go:
+ case dwarf::DW_LANG_Haskell:
+ case dwarf::DW_LANG_C_plus_plus_03:
+ case dwarf::DW_LANG_C_plus_plus_11:
+ case dwarf::DW_LANG_OCaml:
+ case dwarf::DW_LANG_Rust:
+ case dwarf::DW_LANG_C11:
+ case dwarf::DW_LANG_Swift:
+ case dwarf::DW_LANG_Dylan:
+ case dwarf::DW_LANG_C_plus_plus_14:
+ if (dwarf::DWARF_VERSION >= 5)
+ return 0;
+ break;
+
+ case dwarf::DW_LANG_Modula3:
+ case dwarf::DW_LANG_Julia:
+ case dwarf::DW_LANG_Fortran03:
+ case dwarf::DW_LANG_Fortran08:
+ if (dwarf::DWARF_VERSION >= 5)
+ return 1;
+ break;
}
return -1;
}
/// Check whether the DIE for this MDNode can be shared across CUs.
-static bool isShareableAcrossCUs(DIDescriptor D) {
+static bool isShareableAcrossCUs(const DebugNode *D) {
// When the MDNode can be part of the type system, the DIE can be shared
// across CUs.
// Combining type units and cross-CU DIE sharing is lower value (since
// level already) but may be implementable for some value in projects
// building multiple independent libraries with LTO and then linking those
// together.
- return (D.isType() ||
- (D.isSubprogram() && !DISubprogram(D).isDefinition())) &&
+ return (isa<MDType>(D) ||
+ (isa<MDSubprogram>(D) && !cast<MDSubprogram>(D)->isDefinition())) &&
!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(DIDescriptor D) const {
+DIE *DwarfUnit::getDIE(const DebugNode *D) const {
if (isShareableAcrossCUs(D))
- return DD->getDIE(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(DIDescriptor Desc, DIE *D) {
+void DwarfUnit::insertDIE(const DebugNode *Desc, DIE *D) {
if (isShareableAcrossCUs(Desc)) {
- DD->insertDIE(Desc, D);
+ DU->insertDIE(Desc, D);
return;
}
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 (!DD->useSplitDwarf())
+ if (!isDwoUnit())
return addLocalString(Die, Attribute, String);
+ addIndexedString(Die, Attribute, String);
+}
+
+void DwarfUnit::addIndexedString(DIE &Die, dwarf::Attribute Attribute,
+ StringRef String) {
unsigned idx = DU->getStringPool().getIndex(*Asm, String);
DIEValue *Value = new (DIEValueAllocator) DIEInteger(idx);
DIEValue *Str = new (DIEValueAllocator) DIEString(Value, String);
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();
MCSymbol *Symb = DU->getStringPool().getSymbol(*Asm, String);
DIEValue *Value;
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
Value = new (DIEValueAllocator) DIELabel(Symb);
else
- Value = new (DIEValueAllocator) DIEDelta(Symb, DD->getDebugStrSym());
+ Value = new (DIEValueAllocator)
+ DIEDelta(Symb, TLOF.getDwarfStrSection()->getBeginSymbol());
DIEValue *Str = new (DIEValueAllocator) DIEString(Value, String);
Die.addValue(Attribute, dwarf::DW_FORM_strp, Str);
}
-/// addExpr - Add a Dwarf expression attribute data and value.
-///
-void DwarfUnit::addExpr(DIELoc &Die, dwarf::Form Form, const MCExpr *Expr) {
- DIEValue *Value = new (DIEValueAllocator) DIEExpr(Expr);
- Die.addValue((dwarf::Attribute)0, Form, Value);
-}
-
-/// addLocationList - Add a Dwarf loclistptr attribute data and value.
-///
-void DwarfUnit::addLocationList(DIE &Die, dwarf::Attribute Attribute,
- unsigned Index) {
- DIEValue *Value = new (DIEValueAllocator) DIELocList(Index);
- dwarf::Form Form = DD->getDwarfVersion() >= 4 ? dwarf::DW_FORM_sec_offset
- : dwarf::DW_FORM_data4;
- Die.addValue(Attribute, Form, Value);
-}
-
-/// 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, DIDescriptor N) {
+DIE &DwarfUnit::createAndAddDIE(unsigned Tag, DIE &Parent, const DebugNode *N) {
assert(Tag != dwarf::DW_TAG_auto_variable &&
Tag != dwarf::DW_TAG_arg_variable);
Parent.addChild(make_unique<DIE>((dwarf::Tag)Tag));
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.isVariable());
+ assert(V);
- addSourceLine(Die, V.getLineNumber(), V.getContext().getFilename(),
- V.getContext().getDirectory());
+ addSourceLine(Die, V->getLine(), V->getScope()->getFilename(),
+ V->getScope()->getDirectory());
}
-/// addSourceLine - Add location information to specified debug information
-/// entry.
void DwarfUnit::addSourceLine(DIE &Die, DIGlobalVariable G) {
- assert(G.isGlobalVariable());
+ assert(G);
- addSourceLine(Die, G.getLineNumber(), G.getFilename(), G.getDirectory());
+ 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.isSubprogram());
+ assert(SP);
- addSourceLine(Die, SP.getLineNumber(), SP.getFilename(), SP.getDirectory());
+ addSourceLine(Die, SP->getLine(), SP->getFilename(), SP->getDirectory());
}
-/// addSourceLine - Add location information to specified debug information
-/// entry.
-void DwarfUnit::addSourceLine(DIE &Die, DIType Ty) {
- assert(Ty.isType());
+void DwarfUnit::addSourceLine(DIE &Die, const MDType *Ty) {
+ assert(Ty);
- addSourceLine(Die, Ty.getLineNumber(), Ty.getFilename(), Ty.getDirectory());
+ 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.isObjCProperty());
+ assert(Ty);
- DIFile File = Ty.getFile();
- addSourceLine(Die, Ty.getLineNumber(), File.getFilename(),
- File.getDirectory());
+ addSourceLine(Die, Ty->getLine(), Ty->getFilename(), Ty->getDirectory());
}
-/// addSourceLine - Add location information to specified debug information
-/// entry.
void DwarfUnit::addSourceLine(DIE &Die, DINameSpace NS) {
- assert(NS.Verify());
-
- addSourceLine(Die, NS.getLineNumber(), NS.getFilename(), NS.getDirectory());
-}
-
-/// addVariableAddress - Add DW_AT_location attribute for a
-/// DbgVariable based on provided MachineLocation.
-void DwarfUnit::addVariableAddress(const DbgVariable &DV, DIE &Die,
- MachineLocation Location) {
- if (DV.variableHasComplexAddress())
- addComplexAddress(DV, Die, dwarf::DW_AT_location, Location);
- else if (DV.isBlockByrefVariable())
- addBlockByrefAddress(DV, Die, dwarf::DW_AT_location, Location);
- else
- addAddress(Die, dwarf::DW_AT_location, Location,
- DV.getVariable().isIndirect());
+ addSourceLine(Die, NS->getLine(), NS->getFilename(), NS->getDirectory());
}
-/// addRegisterOp - Add register operand.
-// FIXME: Ideally, this would share the implementation with
-// AsmPrinter::EmitDwarfRegOpPiece.
-void DwarfUnit::addRegisterOpPiece(DIELoc &TheDie, unsigned Reg,
+bool DwarfUnit::addRegisterOpPiece(DIELoc &TheDie, unsigned Reg,
unsigned SizeInBits, unsigned OffsetInBits) {
- const TargetRegisterInfo *RI = Asm->TM.getSubtargetImpl()->getRegisterInfo();
- int DWReg = RI->getDwarfRegNum(Reg, false);
- bool isSubRegister = DWReg < 0;
-
- unsigned Idx = 0;
-
- // Go up the super-register chain until we hit a valid dwarf register number.
- for (MCSuperRegIterator SR(Reg, RI); SR.isValid() && DWReg < 0; ++SR) {
- DWReg = RI->getDwarfRegNum(*SR, false);
- if (DWReg >= 0)
- Idx = RI->getSubRegIndex(*SR, Reg);
- }
-
- if (DWReg < 0) {
- DEBUG(dbgs() << "Invalid Dwarf register number.\n");
- addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_nop);
- return;
- }
-
- // Emit register.
- if (DWReg < 32)
- addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_reg0 + DWReg);
- else {
- addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_regx);
- addUInt(TheDie, dwarf::DW_FORM_udata, DWReg);
- }
-
- // Emit mask.
- bool isPiece = SizeInBits > 0;
- if (isSubRegister || isPiece) {
- const unsigned SizeOfByte = 8;
- unsigned RegSizeInBits = RI->getSubRegIdxSize(Idx);
- unsigned RegOffsetInBits = RI->getSubRegIdxOffset(Idx);
- unsigned PieceSizeInBits = std::max(SizeInBits, RegSizeInBits);
- unsigned PieceOffsetInBits = OffsetInBits ? OffsetInBits : RegOffsetInBits;
- assert(RegSizeInBits >= SizeInBits && "register smaller than value");
-
- if (RegOffsetInBits != PieceOffsetInBits) {
- // Manually shift the value into place, since the DW_OP_piece
- // describes the part of the variable, not the position of the
- // subregister.
- addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_constu);
- addUInt(TheDie, dwarf::DW_FORM_data1, RegOffsetInBits);
- addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_shr);
- }
-
- if (PieceOffsetInBits > 0 || PieceSizeInBits % SizeOfByte) {
- assert(PieceSizeInBits > 0 && "piece has zero size");
- addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_bit_piece);
- addUInt(TheDie, dwarf::DW_FORM_data1, PieceSizeInBits);
- addUInt(TheDie, dwarf::DW_FORM_data1, PieceOffsetInBits);
- } else {
- assert(PieceSizeInBits > 0 && "piece has zero size");
- addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_piece);
- addUInt(TheDie, dwarf::DW_FORM_data1, PieceSizeInBits/SizeOfByte);
- }
- }
+ DIEDwarfExpression Expr(*Asm, *this, TheDie);
+ Expr.AddMachineRegPiece(Reg, SizeInBits, OffsetInBits);
+ return true;
}
-/// addRegisterOffset - Add register offset.
-void DwarfUnit::addRegisterOffset(DIELoc &TheDie, unsigned Reg,
+bool DwarfUnit::addRegisterOffset(DIELoc &TheDie, unsigned Reg,
int64_t Offset) {
- const TargetRegisterInfo *RI = Asm->TM.getSubtargetImpl()->getRegisterInfo();
- unsigned DWReg = RI->getDwarfRegNum(Reg, false);
- const TargetRegisterInfo *TRI = Asm->TM.getSubtargetImpl()->getRegisterInfo();
- if (Reg == TRI->getFrameRegister(*Asm->MF))
- // If variable offset is based in frame register then use fbreg.
- addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_fbreg);
- else if (DWReg < 32)
- addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_breg0 + DWReg);
- else {
- addUInt(TheDie, dwarf::DW_FORM_data1, dwarf::DW_OP_bregx);
- addUInt(TheDie, dwarf::DW_FORM_udata, DWReg);
- }
- addSInt(TheDie, dwarf::DW_FORM_sdata, Offset);
-}
-
-/// addAddress - Add an address attribute to a die based on the location
-/// provided.
-void DwarfUnit::addAddress(DIE &Die, dwarf::Attribute Attribute,
- const MachineLocation &Location, bool Indirect) {
- DIELoc *Loc = new (DIEValueAllocator) DIELoc();
-
- if (Location.isReg() && !Indirect)
- addRegisterOpPiece(*Loc, Location.getReg());
- else {
- addRegisterOffset(*Loc, Location.getReg(), Location.getOffset());
- if (Indirect && !Location.isReg()) {
- addUInt(*Loc, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
- }
- }
-
- // Now attach the location information to the DIE.
- addBlock(Die, Attribute, Loc);
-}
-
-/// addComplexAddress - Start with the address based on the location provided,
-/// and generate the DWARF information necessary to find the actual variable
-/// given the extra address information encoded in the DbgVariable, starting
-/// from the starting location. Add the DWARF information to the die.
-///
-void DwarfUnit::addComplexAddress(const DbgVariable &DV, DIE &Die,
- dwarf::Attribute Attribute,
- const MachineLocation &Location) {
- DIELoc *Loc = new (DIEValueAllocator) DIELoc();
- unsigned N = DV.getNumAddrElements();
- unsigned i = 0;
- if (Location.isReg()) {
- if (N >= 2 && DV.getAddrElement(0) == dwarf::DW_OP_plus) {
- assert(!DV.getVariable().isIndirect() &&
- "double indirection not handled");
- // If first address element is OpPlus then emit
- // DW_OP_breg + Offset instead of DW_OP_reg + Offset.
- addRegisterOffset(*Loc, Location.getReg(), DV.getAddrElement(1));
- i = 2;
- } else if (N >= 2 && DV.getAddrElement(0) == dwarf::DW_OP_deref) {
- assert(!DV.getVariable().isIndirect() &&
- "double indirection not handled");
- addRegisterOpPiece(*Loc, Location.getReg(),
- DV.getExpression().getPieceSize(),
- DV.getExpression().getPieceOffset());
- i = 3;
- } else
- addRegisterOpPiece(*Loc, Location.getReg());
- } else
- addRegisterOffset(*Loc, Location.getReg(), Location.getOffset());
-
- for (; i < N; ++i) {
- uint64_t Element = DV.getAddrElement(i);
- if (Element == dwarf::DW_OP_plus) {
- addUInt(*Loc, dwarf::DW_FORM_data1, dwarf::DW_OP_plus_uconst);
- addUInt(*Loc, dwarf::DW_FORM_udata, DV.getAddrElement(++i));
-
- } else if (Element == dwarf::DW_OP_deref) {
- if (!Location.isReg())
- addUInt(*Loc, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
-
- } else if (Element == dwarf::DW_OP_piece) {
- const unsigned SizeOfByte = 8;
- unsigned PieceOffsetInBits = DV.getAddrElement(++i)*SizeOfByte;
- unsigned PieceSizeInBits = DV.getAddrElement(++i)*SizeOfByte;
- // Emit DW_OP_bit_piece Size Offset.
- assert(PieceSizeInBits > 0 && "piece has zero size");
- addUInt(*Loc, dwarf::DW_FORM_data1, dwarf::DW_OP_bit_piece);
- addUInt(*Loc, dwarf::DW_FORM_udata, PieceSizeInBits);
- addUInt(*Loc, dwarf::DW_FORM_udata, PieceOffsetInBits);
-
- } else
- llvm_unreachable("unknown DIBuilder Opcode");
- }
-
- // Now attach the location information to the DIE.
- addBlock(Die, Attribute, Loc);
+ DIEDwarfExpression Expr(*Asm, *this, TheDie);
+ return Expr.AddMachineRegIndirect(Reg, Offset);
}
/* Byref variables, in Blocks, are declared by the programmer as "SomeType
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) {
- DIType Ty = DV.getType();
- DIType TmpTy = Ty;
- uint16_t Tag = Ty.getTag();
+ const MDType *Ty = DV.getType();
+ const MDType *TmpTy = Ty;
+ uint16_t Tag = Ty->getTag();
bool isPointer = false;
StringRef varName = DV.getName();
if (Tag == dwarf::DW_TAG_pointer_type) {
- DIDerivedType DTy(Ty);
- TmpTy = resolve(DTy.getTypeDerivedFrom());
+ auto *DTy = cast<MDDerivedType>(Ty);
+ TmpTy = resolve(DTy->getBaseType());
isPointer = true;
}
- DICompositeType blockStruct(TmpTy);
-
// Find the __forwarding field and the variable field in the __Block_byref
// struct.
- DIArray Fields = blockStruct.getElements();
- DIDerivedType varField;
- DIDerivedType forwardingField;
+ DIArray Fields = cast<MDCompositeTypeBase>(TmpTy)->getElements();
+ const MDDerivedType *varField = nullptr;
+ const MDDerivedType *forwardingField = nullptr;
- for (unsigned i = 0, N = Fields.getNumElements(); i < N; ++i) {
- DIDerivedType DT(Fields.getElement(i));
- StringRef fieldName = DT.getName();
+ for (unsigned i = 0, N = Fields.size(); i < N; ++i) {
+ auto *DT = cast<MDDerivedType>(Fields[i]);
+ StringRef fieldName = DT->getName();
if (fieldName == "__forwarding")
forwardingField = DT;
else if (fieldName == varName)
}
// Get the offsets for the forwarding field and the variable field.
- unsigned forwardingFieldOffset = forwardingField.getOffsetInBits() >> 3;
- unsigned varFieldOffset = varField.getOffsetInBits() >> 2;
+ unsigned forwardingFieldOffset = forwardingField->getOffsetInBits() >> 3;
+ unsigned varFieldOffset = varField->getOffsetInBits() >> 2;
// Decode the original location, and use that as the start of the byref
// variable's location.
DIELoc *Loc = new (DIEValueAllocator) DIELoc();
+ bool validReg;
if (Location.isReg())
- addRegisterOpPiece(*Loc, Location.getReg());
+ validReg = addRegisterOpPiece(*Loc, Location.getReg());
else
- addRegisterOffset(*Loc, Location.getReg(), Location.getOffset());
+ validReg = addRegisterOffset(*Loc, Location.getReg(), Location.getOffset());
+
+ if (!validReg)
+ return;
// If we started with a pointer to the __Block_byref... struct, then
// the first thing we need to do is dereference the pointer (DW_OP_deref).
}
/// Return true if type encoding is unsigned.
-static bool isUnsignedDIType(DwarfDebug *DD, DIType Ty) {
- DIDerivedType DTy(Ty);
- if (DTy.isDerivedType()) {
- dwarf::Tag T = (dwarf::Tag)Ty.getTag();
+static bool isUnsignedDIType(DwarfDebug *DD, const MDType *Ty) {
+ if (auto *DTy = dyn_cast<MDDerivedTypeBase>(Ty)) {
+ dwarf::Tag T = (dwarf::Tag)Ty->getTag();
// Encode pointer constants as unsigned bytes. This is used at least for
// null pointer constant emission.
+ // (Pieces of) aggregate types that get hacked apart by SROA may also be
+ // represented by a constant. Encode them as unsigned bytes.
// FIXME: reference and rvalue_reference /probably/ shouldn't be allowed
// here, but accept them for now due to a bug in SROA producing bogus
// dbg.values.
- if (T == dwarf::DW_TAG_pointer_type ||
+ if (T == dwarf::DW_TAG_array_type ||
+ T == dwarf::DW_TAG_class_type ||
+ T == dwarf::DW_TAG_pointer_type ||
T == dwarf::DW_TAG_ptr_to_member_type ||
T == dwarf::DW_TAG_reference_type ||
- T == dwarf::DW_TAG_rvalue_reference_type)
+ T == dwarf::DW_TAG_rvalue_reference_type ||
+ T == dwarf::DW_TAG_structure_type ||
+ T == dwarf::DW_TAG_union_type)
return true;
assert(T == dwarf::DW_TAG_typedef || T == dwarf::DW_TAG_const_type ||
T == dwarf::DW_TAG_volatile_type ||
T == dwarf::DW_TAG_restrict_type ||
T == dwarf::DW_TAG_enumeration_type);
- if (DITypeRef Deriv = DTy.getTypeDerivedFrom())
+ if (MDTypeRef Deriv = DTy->getBaseType())
return isUnsignedDIType(DD, DD->resolve(Deriv));
// FIXME: Enums without a fixed underlying type have unknown signedness
// here, leading to incorrectly emitted constants.
- assert(DTy.getTag() == dwarf::DW_TAG_enumeration_type);
+ assert(DTy->getTag() == dwarf::DW_TAG_enumeration_type);
return false;
}
- DIBasicType BTy(Ty);
- assert(BTy.isBasicType());
- unsigned Encoding = BTy.getEncoding();
+ auto *BTy = cast<MDBasicType>(Ty);
+ unsigned Encoding = BTy->getEncoding();
assert((Encoding == dwarf::DW_ATE_unsigned ||
Encoding == dwarf::DW_ATE_unsigned_char ||
Encoding == dwarf::DW_ATE_signed ||
Encoding == dwarf::DW_ATE_signed_char ||
- Encoding == dwarf::DW_ATE_UTF || Encoding == dwarf::DW_ATE_boolean) &&
+ Encoding == dwarf::DW_ATE_float || Encoding == dwarf::DW_ATE_UTF ||
+ Encoding == dwarf::DW_ATE_boolean ||
+ (Ty->getTag() == dwarf::DW_TAG_unspecified_type &&
+ Ty->getName() == "decltype(nullptr)")) &&
"Unsupported encoding");
- return (Encoding == dwarf::DW_ATE_unsigned ||
- Encoding == dwarf::DW_ATE_unsigned_char ||
- Encoding == dwarf::DW_ATE_UTF || Encoding == dwarf::DW_ATE_boolean);
+ return Encoding == dwarf::DW_ATE_unsigned ||
+ Encoding == dwarf::DW_ATE_unsigned_char ||
+ Encoding == dwarf::DW_ATE_UTF || Encoding == dwarf::DW_ATE_boolean ||
+ Ty->getTag() == dwarf::DW_TAG_unspecified_type;
}
/// If this type is derived from a base type then return base type size.
-static uint64_t getBaseTypeSize(DwarfDebug *DD, DIDerivedType Ty) {
- unsigned Tag = Ty.getTag();
+static uint64_t getBaseTypeSize(DwarfDebug *DD, const MDDerivedType *Ty) {
+ unsigned Tag = Ty->getTag();
if (Tag != dwarf::DW_TAG_member && Tag != dwarf::DW_TAG_typedef &&
Tag != dwarf::DW_TAG_const_type && Tag != dwarf::DW_TAG_volatile_type &&
Tag != dwarf::DW_TAG_restrict_type)
- return Ty.getSizeInBits();
+ return Ty->getSizeInBits();
- DIType BaseType = DD->resolve(Ty.getTypeDerivedFrom());
+ auto *BaseType = DD->resolve(Ty->getBaseType());
- // If this type is not derived from any type or the type is a declaration then
- // take conservative approach.
- if (!BaseType.isValid() || BaseType.isForwardDecl())
- return Ty.getSizeInBits();
+ assert(BaseType && "Unexpected invalid base type");
// If this is a derived type, go ahead and get the base type, unless it's a
// reference then it's just the size of the field. Pointer types have no need
// of this since they're a different type of qualification on the type.
- if (BaseType.getTag() == dwarf::DW_TAG_reference_type ||
- BaseType.getTag() == dwarf::DW_TAG_rvalue_reference_type)
- return Ty.getSizeInBits();
+ if (BaseType->getTag() == dwarf::DW_TAG_reference_type ||
+ BaseType->getTag() == dwarf::DW_TAG_rvalue_reference_type)
+ return Ty->getSizeInBits();
- if (BaseType.isDerivedType())
- return getBaseTypeSize(DD, DIDerivedType(BaseType));
+ if (auto *DT = dyn_cast<MDDerivedType>(BaseType))
+ return getBaseTypeSize(DD, DT);
- return BaseType.getSizeInBits();
+ 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, DIType Ty) {
+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,
- DIType Ty) {
+ const MDType *Ty) {
assert(MO.isImm() && "Invalid machine operand!");
addConstantValue(Die, isUnsignedDIType(DD, Ty), MO.getImm());
Unsigned ? dwarf::DW_FORM_udata : dwarf::DW_FORM_sdata, Val);
}
-void DwarfUnit::addConstantValue(DIE &Die, const APInt &Val, DIType Ty) {
+void DwarfUnit::addConstantValue(DIE &Die, const APInt &Val, const MDType *Ty) {
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);
}
-/// addTemplateParams - Add template parameters into buffer.
+void DwarfUnit::addLinkageName(DIE &Die, StringRef LinkageName) {
+ if (!LinkageName.empty())
+ addString(Die,
+ DD->getDwarfVersion() >= 4 ? dwarf::DW_AT_linkage_name
+ : dwarf::DW_AT_MIPS_linkage_name,
+ GlobalValue::getRealLinkageName(LinkageName));
+}
+
void DwarfUnit::addTemplateParams(DIE &Buffer, DIArray TParams) {
// Add template parameters.
- for (unsigned i = 0, e = TParams.getNumElements(); i != e; ++i) {
- DIDescriptor Element = TParams.getElement(i);
- if (Element.isTemplateTypeParameter())
- constructTemplateTypeParameterDIE(Buffer,
- DITemplateTypeParameter(Element));
- else if (Element.isTemplateValueParameter())
- constructTemplateValueParameterDIE(Buffer,
- DITemplateValueParameter(Element));
+ for (const auto *Element : TParams) {
+ if (auto *TTP = dyn_cast<MDTemplateTypeParameter>(Element))
+ constructTemplateTypeParameterDIE(Buffer, TTP);
+ else if (auto *TVP = dyn_cast<MDTemplateValueParameter>(Element))
+ constructTemplateValueParameterDIE(Buffer, TVP);
}
}
-/// getOrCreateContextDIE - Get context owner's DIE.
-DIE *DwarfUnit::getOrCreateContextDIE(DIScope Context) {
- if (!Context || Context.isFile())
+DIE *DwarfUnit::getOrCreateContextDIE(const MDScope *Context) {
+ if (!Context || isa<MDFile>(Context))
return &getUnitDie();
- if (Context.isType())
- return getOrCreateTypeDIE(DIType(Context));
- if (Context.isNameSpace())
- return getOrCreateNameSpace(DINameSpace(Context));
- if (Context.isSubprogram())
- return getOrCreateSubprogramDIE(DISubprogram(Context));
+ if (auto *T = dyn_cast<MDType>(Context))
+ return getOrCreateTypeDIE(T);
+ if (auto *NS = dyn_cast<MDNamespace>(Context))
+ return getOrCreateNameSpace(NS);
+ if (auto *SP = dyn_cast<MDSubprogram>(Context))
+ return getOrCreateSubprogramDIE(SP);
return getDIE(Context);
}
-DIE *DwarfUnit::createTypeDIE(DICompositeType Ty) {
- DIScope Context = resolve(Ty.getContext());
+DIE *DwarfUnit::createTypeDIE(const MDCompositeType *Ty) {
+ auto *Context = resolve(Ty->getScope());
DIE *ContextDIE = getOrCreateContextDIE(Context);
if (DIE *TyDIE = getDIE(Ty))
return TyDIE;
// Create new type.
- DIE &TyDIE = createAndAddDIE(Ty.getTag(), *ContextDIE, Ty);
+ DIE &TyDIE = createAndAddDIE(Ty->getTag(), *ContextDIE, Ty);
- constructTypeDIE(TyDIE, Ty);
+ constructTypeDIE(TyDIE, cast<MDCompositeType>(Ty));
updateAcceleratorTables(Context, Ty, TyDIE);
return &TyDIE;
}
-/// getOrCreateTypeDIE - Find existing DIE or create new DIE for the
-/// given DIType.
DIE *DwarfUnit::getOrCreateTypeDIE(const MDNode *TyNode) {
if (!TyNode)
return nullptr;
- DIType Ty(TyNode);
- assert(Ty.isType());
- assert(Ty == resolve(Ty.getRef()) &&
+ auto *Ty = cast<MDType>(TyNode);
+ assert(Ty == resolve(Ty->getRef()) &&
"type was not uniqued, possible ODR violation.");
// DW_TAG_restrict_type is not supported in DWARF2
- if (Ty.getTag() == dwarf::DW_TAG_restrict_type && DD->getDwarfVersion() <= 2)
- return getOrCreateTypeDIE(resolve(DIDerivedType(Ty).getTypeDerivedFrom()));
+ if (Ty->getTag() == dwarf::DW_TAG_restrict_type && DD->getDwarfVersion() <= 2)
+ return getOrCreateTypeDIE(
+ resolve(cast<MDDerivedType>(Ty)->getBaseType()));
// Construct the context before querying for the existence of the DIE in case
// such construction creates the DIE.
- DIScope Context = resolve(Ty.getContext());
+ auto *Context = resolve(Ty->getScope());
DIE *ContextDIE = getOrCreateContextDIE(Context);
assert(ContextDIE);
return TyDIE;
// Create new type.
- DIE &TyDIE = createAndAddDIE(Ty.getTag(), *ContextDIE, Ty);
+ DIE &TyDIE = createAndAddDIE(Ty->getTag(), *ContextDIE, Ty);
updateAcceleratorTables(Context, Ty, TyDIE);
- if (Ty.isBasicType())
- constructTypeDIE(TyDIE, DIBasicType(Ty));
- else if (Ty.isCompositeType()) {
- DICompositeType CTy(Ty);
- if (GenerateDwarfTypeUnits && !Ty.isForwardDecl())
- if (MDString *TypeId = CTy.getIdentifier()) {
+ if (auto *BT = dyn_cast<MDBasicType>(Ty))
+ constructTypeDIE(TyDIE, BT);
+ else if (auto *STy = dyn_cast<MDSubroutineType>(Ty))
+ constructTypeDIE(TyDIE, STy);
+ else if (auto *CTy = dyn_cast<MDCompositeType>(Ty)) {
+ if (GenerateDwarfTypeUnits && !Ty->isForwardDecl())
+ if (MDString *TypeId = CTy->getRawIdentifier()) {
DD->addDwarfTypeUnitType(getCU(), TypeId->getString(), TyDIE, CTy);
// Skip updating the accelerator tables since this is not the full type.
return &TyDIE;
}
constructTypeDIE(TyDIE, CTy);
} else {
- assert(Ty.isDerivedType() && "Unknown kind of DIType");
- constructTypeDIE(TyDIE, DIDerivedType(Ty));
+ constructTypeDIE(TyDIE, cast<MDDerivedType>(Ty));
}
return &TyDIE;
}
-void DwarfUnit::updateAcceleratorTables(DIScope Context, DIType Ty,
- const DIE &TyDIE) {
- if (!Ty.getName().empty() && !Ty.isForwardDecl()) {
+void DwarfUnit::updateAcceleratorTables(const MDScope *Context,
+ const MDType *Ty, const DIE &TyDIE) {
+ if (!Ty->getName().empty() && !Ty->isForwardDecl()) {
bool IsImplementation = 0;
- if (Ty.isCompositeType()) {
- DICompositeType CT(Ty);
+ if (auto *CT = dyn_cast<MDCompositeTypeBase>(Ty)) {
// A runtime language of 0 actually means C/C++ and that any
// non-negative value is some version of Objective-C/C++.
- IsImplementation = (CT.getRunTimeLang() == 0) || CT.isObjcClassComplete();
+ IsImplementation = CT->getRuntimeLang() == 0 || CT->isObjcClassComplete();
}
unsigned Flags = IsImplementation ? dwarf::DW_FLAG_type_implementation : 0;
- DD->addAccelType(Ty.getName(), TyDIE, Flags);
+ DD->addAccelType(Ty->getName(), TyDIE, Flags);
- if ((!Context || Context.isCompileUnit() || Context.isFile() ||
- Context.isNameSpace()) &&
- getCUNode().getEmissionKind() != DIBuilder::LineTablesOnly)
- GlobalTypes[getParentContextString(Context) + Ty.getName().str()] =
- &TyDIE;
+ if (!Context || isa<MDCompileUnit>(Context) || isa<MDFile>(Context) ||
+ isa<MDNamespace>(Context))
+ addGlobalType(Ty, TyDIE, Context);
}
}
-/// addType - Add a new type attribute to the specified entity.
-void DwarfUnit::addType(DIE &Entity, DIType Ty, dwarf::Attribute Attribute) {
+void DwarfUnit::addType(DIE &Entity, const MDType *Ty,
+ dwarf::Attribute Attribute) {
assert(Ty && "Trying to add a type that doesn't exist?");
// Check for pre-existence.
addDIEEntry(Entity, Attribute, Entry);
}
-/// addGlobalName - Add a new global name to the compile unit.
-void DwarfUnit::addGlobalName(StringRef Name, DIE &Die, DIScope Context) {
- if (getCUNode().getEmissionKind() == DIBuilder::LineTablesOnly)
- return;
- std::string FullName = getParentContextString(Context) + Name.str();
- GlobalNames[FullName] = &Die;
-}
-
-/// 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(DIScope Context) const {
+std::string DwarfUnit::getParentContextString(const MDScope *Context) const {
if (!Context)
return "";
return "";
std::string CS;
- SmallVector<DIScope, 1> Parents;
- while (!Context.isCompileUnit()) {
+ SmallVector<const MDScope *, 1> Parents;
+ while (!isa<MDCompileUnit>(Context)) {
Parents.push_back(Context);
- if (Context.getContext())
- Context = resolve(Context.getContext());
+ if (Context->getScope())
+ Context = resolve(Context->getScope());
else
// Structure, etc types will have a NULL context if they're at the top
// level.
// Reverse iterate over our list to go from the outermost construct to the
// innermost.
- for (SmallVectorImpl<DIScope>::reverse_iterator I = Parents.rbegin(),
- E = Parents.rend();
- I != E; ++I) {
- DIScope Ctx = *I;
- StringRef Name = Ctx.getName();
- if (Name.empty() && Ctx.isNameSpace())
+ for (auto I = Parents.rbegin(), E = Parents.rend(); I != E; ++I) {
+ const MDScope *Ctx = *I;
+ StringRef Name = Ctx->getName();
+ if (Name.empty() && isa<MDNamespace>(Ctx))
Name = "(anonymous namespace)";
if (!Name.empty()) {
CS += Name;
return CS;
}
-/// constructTypeDIE - Construct basic type die from DIBasicType.
-void DwarfUnit::constructTypeDIE(DIE &Buffer, DIBasicType BTy) {
+void DwarfUnit::constructTypeDIE(DIE &Buffer, const MDBasicType *BTy) {
// Get core information.
- StringRef Name = BTy.getName();
+ StringRef Name = BTy->getName();
// Add name if not anonymous or intermediate type.
if (!Name.empty())
addString(Buffer, dwarf::DW_AT_name, Name);
// An unspecified type only has a name attribute.
- if (BTy.getTag() == dwarf::DW_TAG_unspecified_type)
+ if (BTy->getTag() == dwarf::DW_TAG_unspecified_type)
return;
addUInt(Buffer, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1,
- BTy.getEncoding());
+ BTy->getEncoding());
- uint64_t Size = BTy.getSizeInBits() >> 3;
+ uint64_t Size = BTy->getSizeInBits() >> 3;
addUInt(Buffer, dwarf::DW_AT_byte_size, None, Size);
}
-/// constructTypeDIE - Construct derived type die from DIDerivedType.
-void DwarfUnit::constructTypeDIE(DIE &Buffer, DIDerivedType DTy) {
+void DwarfUnit::constructTypeDIE(DIE &Buffer, const MDDerivedType *DTy) {
// Get core information.
- StringRef Name = DTy.getName();
- uint64_t Size = DTy.getSizeInBits() >> 3;
+ StringRef Name = DTy->getName();
+ uint64_t Size = DTy->getSizeInBits() >> 3;
uint16_t Tag = Buffer.getTag();
// Map to main type, void will not have a type.
- DIType FromTy = resolve(DTy.getTypeDerivedFrom());
+ const MDType *FromTy = resolve(DTy->getBaseType());
if (FromTy)
addType(Buffer, FromTy);
addString(Buffer, dwarf::DW_AT_name, Name);
// Add size if non-zero (derived types might be zero-sized.)
- if (Size && Tag != dwarf::DW_TAG_pointer_type)
+ if (Size && Tag != dwarf::DW_TAG_pointer_type
+ && Tag != dwarf::DW_TAG_ptr_to_member_type)
addUInt(Buffer, dwarf::DW_AT_byte_size, None, Size);
if (Tag == dwarf::DW_TAG_ptr_to_member_type)
- addDIEEntry(Buffer, dwarf::DW_AT_containing_type,
- *getOrCreateTypeDIE(resolve(DTy.getClassType())));
+ addDIEEntry(
+ Buffer, dwarf::DW_AT_containing_type,
+ *getOrCreateTypeDIE(resolve(cast<MDDerivedType>(DTy)->getClassType())));
// Add source line info if available and TyDesc is not a forward declaration.
- if (!DTy.isForwardDecl())
+ if (!DTy->isForwardDecl())
addSourceLine(Buffer, DTy);
}
-/// constructSubprogramArguments - Construct function argument DIEs.
void DwarfUnit::constructSubprogramArguments(DIE &Buffer, DITypeArray Args) {
- for (unsigned i = 1, N = Args.getNumElements(); i < N; ++i) {
- DIType Ty = resolve(Args.getElement(i));
+ for (unsigned i = 1, N = Args.size(); i < N; ++i) {
+ const MDType *Ty = resolve(Args[i]);
if (!Ty) {
assert(i == N-1 && "Unspecified parameter must be the last argument");
createAndAddDIE(dwarf::DW_TAG_unspecified_parameters, Buffer);
} else {
DIE &Arg = createAndAddDIE(dwarf::DW_TAG_formal_parameter, Buffer);
- addType(Arg, DIType(Ty));
- if (DIType(Ty).isArtificial())
+ addType(Arg, Ty);
+ if (Ty->isArtificial())
addFlag(Arg, dwarf::DW_AT_artificial);
}
}
}
-/// constructTypeDIE - Construct type DIE from DICompositeType.
-void DwarfUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
+void DwarfUnit::constructTypeDIE(DIE &Buffer, const MDSubroutineType *CTy) {
+ // Add return type. A void return won't have a type.
+ auto Elements = cast<MDSubroutineType>(CTy)->getTypeArray();
+ if (Elements.size())
+ if (auto RTy = resolve(Elements[0]))
+ addType(Buffer, RTy);
+
+ bool isPrototyped = true;
+ if (Elements.size() == 2 && !Elements[1])
+ isPrototyped = false;
+
+ constructSubprogramArguments(Buffer, Elements);
+
+ // Add prototype flag if we're dealing with a C language and the function has
+ // been prototyped.
+ uint16_t Language = getLanguage();
+ if (isPrototyped &&
+ (Language == dwarf::DW_LANG_C89 || Language == dwarf::DW_LANG_C99 ||
+ Language == dwarf::DW_LANG_ObjC))
+ addFlag(Buffer, dwarf::DW_AT_prototyped);
+
+ if (CTy->isLValueReference())
+ addFlag(Buffer, dwarf::DW_AT_reference);
+
+ if (CTy->isRValueReference())
+ addFlag(Buffer, dwarf::DW_AT_rvalue_reference);
+}
+
+void DwarfUnit::constructTypeDIE(DIE &Buffer, const MDCompositeType *CTy) {
// Add name if not anonymous or intermediate type.
- StringRef Name = CTy.getName();
+ StringRef Name = CTy->getName();
- uint64_t Size = CTy.getSizeInBits() >> 3;
+ uint64_t Size = CTy->getSizeInBits() >> 3;
uint16_t Tag = Buffer.getTag();
switch (Tag) {
case dwarf::DW_TAG_enumeration_type:
constructEnumTypeDIE(Buffer, CTy);
break;
- case dwarf::DW_TAG_subroutine_type: {
- // Add return type. A void return won't have a type.
- DITypeArray Elements = DISubroutineType(CTy).getTypeArray();
- DIType RTy(resolve(Elements.getElement(0)));
- if (RTy)
- addType(Buffer, RTy);
-
- bool isPrototyped = true;
- if (Elements.getNumElements() == 2 &&
- !Elements.getElement(1))
- isPrototyped = false;
-
- constructSubprogramArguments(Buffer, Elements);
-
- // Add prototype flag if we're dealing with a C language and the
- // function has been prototyped.
- uint16_t Language = getLanguage();
- if (isPrototyped &&
- (Language == dwarf::DW_LANG_C89 || Language == dwarf::DW_LANG_C99 ||
- Language == dwarf::DW_LANG_ObjC))
- addFlag(Buffer, dwarf::DW_AT_prototyped);
-
- if (CTy.isLValueReference())
- addFlag(Buffer, dwarf::DW_AT_reference);
-
- if (CTy.isRValueReference())
- addFlag(Buffer, dwarf::DW_AT_rvalue_reference);
- } break;
case dwarf::DW_TAG_structure_type:
case dwarf::DW_TAG_union_type:
case dwarf::DW_TAG_class_type: {
// Add elements to structure type.
- DIArray Elements = CTy.getElements();
- for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
- DIDescriptor Element = Elements.getElement(i);
- if (Element.isSubprogram())
- getOrCreateSubprogramDIE(DISubprogram(Element));
- else if (Element.isDerivedType()) {
- DIDerivedType DDTy(Element);
- if (DDTy.getTag() == dwarf::DW_TAG_friend) {
+ DIArray Elements = CTy->getElements();
+ for (const auto *Element : Elements) {
+ if (!Element)
+ continue;
+ if (auto *SP = dyn_cast<MDSubprogram>(Element))
+ getOrCreateSubprogramDIE(SP);
+ else if (auto *DDTy = dyn_cast<MDDerivedType>(Element)) {
+ if (DDTy->getTag() == dwarf::DW_TAG_friend) {
DIE &ElemDie = createAndAddDIE(dwarf::DW_TAG_friend, Buffer);
- addType(ElemDie, resolve(DDTy.getTypeDerivedFrom()),
- dwarf::DW_AT_friend);
- } else if (DDTy.isStaticMember()) {
+ addType(ElemDie, resolve(DDTy->getBaseType()), dwarf::DW_AT_friend);
+ } else if (DDTy->isStaticMember()) {
getOrCreateStaticMemberDIE(DDTy);
} else {
constructMemberDIE(Buffer, DDTy);
}
- } else if (Element.isObjCProperty()) {
- DIObjCProperty Property(Element);
- DIE &ElemDie = createAndAddDIE(Property.getTag(), Buffer);
- StringRef PropertyName = Property.getObjCPropertyName();
+ } else if (DIObjCProperty Property = dyn_cast<MDObjCProperty>(Element)) {
+ DIE &ElemDie = createAndAddDIE(Property->getTag(), Buffer);
+ StringRef PropertyName = Property->getName();
addString(ElemDie, dwarf::DW_AT_APPLE_property_name, PropertyName);
- if (Property.getType())
- addType(ElemDie, Property.getType());
+ if (Property->getType())
+ addType(ElemDie, Property->getType());
addSourceLine(ElemDie, Property);
- StringRef GetterName = Property.getObjCPropertyGetterName();
+ StringRef GetterName = Property->getGetterName();
if (!GetterName.empty())
addString(ElemDie, dwarf::DW_AT_APPLE_property_getter, GetterName);
- StringRef SetterName = Property.getObjCPropertySetterName();
+ StringRef SetterName = Property->getSetterName();
if (!SetterName.empty())
addString(ElemDie, dwarf::DW_AT_APPLE_property_setter, SetterName);
- unsigned PropertyAttributes = 0;
- if (Property.isReadOnlyObjCProperty())
- PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readonly;
- if (Property.isReadWriteObjCProperty())
- PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readwrite;
- if (Property.isAssignObjCProperty())
- PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_assign;
- if (Property.isRetainObjCProperty())
- PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_retain;
- if (Property.isCopyObjCProperty())
- PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_copy;
- if (Property.isNonAtomicObjCProperty())
- PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_nonatomic;
- if (PropertyAttributes)
+ if (unsigned PropertyAttributes = Property->getAttributes())
addUInt(ElemDie, dwarf::DW_AT_APPLE_property_attribute, None,
PropertyAttributes);
Entry = createDIEEntry(ElemDie);
insertDIEEntry(Element, Entry);
}
- } else
- continue;
+ }
}
- if (CTy.isAppleBlockExtension())
+ if (CTy->isAppleBlockExtension())
addFlag(Buffer, dwarf::DW_AT_APPLE_block);
- DICompositeType ContainingType(resolve(CTy.getContainingType()));
- if (ContainingType)
+ // This is outside the DWARF spec, but GDB expects a DW_AT_containing_type
+ // inside C++ composite types to point to the base class with the vtable.
+ if (auto *ContainingType =
+ dyn_cast_or_null<MDCompositeType>(resolve(CTy->getVTableHolder())))
addDIEEntry(Buffer, dwarf::DW_AT_containing_type,
*getOrCreateTypeDIE(ContainingType));
- if (CTy.isObjcClassComplete())
+ if (CTy->isObjcClassComplete())
addFlag(Buffer, dwarf::DW_AT_APPLE_objc_complete_type);
// Add template parameters to a class, structure or union types.
// FIXME: The support isn't in the metadata for this yet.
if (Tag == dwarf::DW_TAG_class_type ||
Tag == dwarf::DW_TAG_structure_type || Tag == dwarf::DW_TAG_union_type)
- addTemplateParams(Buffer, CTy.getTemplateParams());
+ addTemplateParams(Buffer, CTy->getTemplateParams());
break;
}
// TODO: Do we care about size for enum forward declarations?
if (Size)
addUInt(Buffer, dwarf::DW_AT_byte_size, None, Size);
- else if (!CTy.isForwardDecl())
+ else if (!CTy->isForwardDecl())
// Add zero size if it is not a forward declaration.
addUInt(Buffer, dwarf::DW_AT_byte_size, None, 0);
// If we're a forward decl, say so.
- if (CTy.isForwardDecl())
+ if (CTy->isForwardDecl())
addFlag(Buffer, dwarf::DW_AT_declaration);
// Add source line info if available.
- if (!CTy.isForwardDecl())
+ if (!CTy->isForwardDecl())
addSourceLine(Buffer, CTy);
// No harm in adding the runtime language to the declaration.
- unsigned RLang = CTy.getRunTimeLang();
+ unsigned RLang = CTy->getRuntimeLang();
if (RLang)
addUInt(Buffer, dwarf::DW_AT_APPLE_runtime_class, dwarf::DW_FORM_data1,
RLang);
}
}
-/// constructTemplateTypeParameterDIE - Construct new DIE for the given
-/// DITemplateTypeParameter.
void DwarfUnit::constructTemplateTypeParameterDIE(DIE &Buffer,
DITemplateTypeParameter TP) {
DIE &ParamDIE =
createAndAddDIE(dwarf::DW_TAG_template_type_parameter, Buffer);
// Add the type if it exists, it could be void and therefore no type.
- if (TP.getType())
- addType(ParamDIE, resolve(TP.getType()));
- if (!TP.getName().empty())
- addString(ParamDIE, dwarf::DW_AT_name, TP.getName());
+ if (TP->getType())
+ addType(ParamDIE, resolve(TP->getType()));
+ if (!TP->getName().empty())
+ addString(ParamDIE, dwarf::DW_AT_name, TP->getName());
}
-/// constructTemplateValueParameterDIE - Construct new DIE for the given
-/// DITemplateValueParameter.
void
DwarfUnit::constructTemplateValueParameterDIE(DIE &Buffer,
DITemplateValueParameter VP) {
- DIE &ParamDIE = createAndAddDIE(VP.getTag(), Buffer);
+ DIE &ParamDIE = createAndAddDIE(VP->getTag(), Buffer);
// Add the type if there is one, template template and template parameter
// packs will not have a type.
- if (VP.getTag() == dwarf::DW_TAG_template_value_parameter)
- addType(ParamDIE, resolve(VP.getType()));
- if (!VP.getName().empty())
- addString(ParamDIE, dwarf::DW_AT_name, VP.getName());
- if (Value *Val = VP.getValue()) {
- if (ConstantInt *CI = dyn_cast<ConstantInt>(Val))
- addConstantValue(ParamDIE, CI, resolve(VP.getType()));
- else if (GlobalValue *GV = dyn_cast<GlobalValue>(Val)) {
+ if (VP->getTag() == dwarf::DW_TAG_template_value_parameter)
+ addType(ParamDIE, resolve(VP->getType()));
+ if (!VP->getName().empty())
+ addString(ParamDIE, dwarf::DW_AT_name, VP->getName());
+ if (Metadata *Val = VP->getValue()) {
+ if (ConstantInt *CI = mdconst::dyn_extract<ConstantInt>(Val))
+ addConstantValue(ParamDIE, CI, resolve(VP->getType()));
+ else if (GlobalValue *GV = mdconst::dyn_extract<GlobalValue>(Val)) {
// For declaration non-type template parameters (such as global values and
// functions)
DIELoc *Loc = new (DIEValueAllocator) DIELoc();
// parameter, rather than a pointer to it.
addUInt(*Loc, dwarf::DW_FORM_data1, dwarf::DW_OP_stack_value);
addBlock(ParamDIE, dwarf::DW_AT_location, Loc);
- } else if (VP.getTag() == dwarf::DW_TAG_GNU_template_template_param) {
+ } else if (VP->getTag() == dwarf::DW_TAG_GNU_template_template_param) {
assert(isa<MDString>(Val));
addString(ParamDIE, dwarf::DW_AT_GNU_template_name,
cast<MDString>(Val)->getString());
- } else if (VP.getTag() == dwarf::DW_TAG_GNU_template_parameter_pack) {
- assert(isa<MDNode>(Val));
- DIArray A(cast<MDNode>(Val));
- addTemplateParams(ParamDIE, A);
+ } else if (VP->getTag() == dwarf::DW_TAG_GNU_template_parameter_pack) {
+ addTemplateParams(ParamDIE, cast<MDTuple>(Val));
}
}
}
-/// 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.
- DIE *ContextDIE = getOrCreateContextDIE(NS.getContext());
+ DIE *ContextDIE = getOrCreateContextDIE(NS->getScope());
if (DIE *NDie = getDIE(NS))
return NDie;
DIE &NDie = createAndAddDIE(dwarf::DW_TAG_namespace, *ContextDIE, NS);
- StringRef Name = NS.getName();
+ StringRef Name = NS->getName();
if (!Name.empty())
- addString(NDie, dwarf::DW_AT_name, NS.getName());
+ addString(NDie, dwarf::DW_AT_name, NS->getName());
else
Name = "(anonymous namespace)";
DD->addAccelNamespace(Name, NDie);
- addGlobalName(Name, NDie, NS.getContext());
+ addGlobalName(Name, NDie, NS->getScope());
addSourceLine(NDie, NS);
return &NDie;
}
-/// getOrCreateSubprogramDIE - Create new DIE using SP.
-DIE *DwarfUnit::getOrCreateSubprogramDIE(DISubprogram 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
// declarations).
- DIE *ContextDIE = getOrCreateContextDIE(resolve(SP.getContext()));
+ DIE *ContextDIE =
+ Minimal ? &getUnitDie() : getOrCreateContextDIE(resolve(SP->getScope()));
if (DIE *SPDie = getDIE(SP))
return SPDie;
- if (DISubprogram SPDecl = SP.getFunctionDeclaration()) {
- // Add subprogram definitions to the CU die directly.
- ContextDIE = &getUnitDie();
- // Build the decl now to ensure it precedes the definition.
- getOrCreateSubprogramDIE(SPDecl);
+ if (auto *SPDecl = SP->getDeclaration()) {
+ if (!Minimal) {
+ // Add subprogram definitions to the CU die directly.
+ ContextDIE = &getUnitDie();
+ // Build the decl now to ensure it precedes the definition.
+ getOrCreateSubprogramDIE(SPDecl);
+ }
}
// DW_TAG_inlined_subroutine may refer to this DIE.
// Stop here and fill this in later, depending on whether or not this
// subprogram turns out to have inlined instances or not.
- if (SP.isDefinition())
+ if (SP->isDefinition())
return &SPDie;
applySubprogramAttributes(SP, SPDie);
return &SPDie;
}
-void DwarfUnit::applySubprogramAttributesToDefinition(DISubprogram SP, DIE &SPDie) {
- DISubprogram SPDecl = SP.getFunctionDeclaration();
- DIScope Context = resolve(SPDecl ? SPDecl.getContext() : SP.getContext());
- applySubprogramAttributes(SP, SPDie);
- addGlobalName(SP.getName(), SPDie, Context);
-}
-
-void DwarfUnit::applySubprogramAttributes(DISubprogram SP, DIE &SPDie) {
+bool DwarfUnit::applySubprogramDefinitionAttributes(DISubprogram SP,
+ DIE &SPDie) {
DIE *DeclDie = nullptr;
StringRef DeclLinkageName;
- if (DISubprogram SPDecl = SP.getFunctionDeclaration()) {
+ if (auto *SPDecl = SP->getDeclaration()) {
DeclDie = getDIE(SPDecl);
assert(DeclDie && "This DIE should've already been constructed when the "
"definition DIE was created in "
"getOrCreateSubprogramDIE");
- DeclLinkageName = SPDecl.getLinkageName();
+ DeclLinkageName = SPDecl->getLinkageName();
}
// Add function template parameters.
- addTemplateParams(SPDie, SP.getTemplateParams());
+ addTemplateParams(SPDie, SP->getTemplateParams());
// Add the linkage name if we have one and it isn't in the Decl.
- StringRef LinkageName = SP.getLinkageName();
+ StringRef LinkageName = SP->getLinkageName();
assert(((LinkageName.empty() || DeclLinkageName.empty()) ||
LinkageName == DeclLinkageName) &&
"decl has a linkage name and it is different");
- if (!LinkageName.empty() && DeclLinkageName.empty())
- addString(SPDie, dwarf::DW_AT_MIPS_linkage_name,
- GlobalValue::getRealLinkageName(LinkageName));
+ if (DeclLinkageName.empty())
+ addLinkageName(SPDie, LinkageName);
- if (DeclDie) {
- // Refer to the function declaration where all the other attributes will be
- // found.
- addDIEEntry(SPDie, dwarf::DW_AT_specification, *DeclDie);
- return;
- }
+ if (!DeclDie)
+ return false;
+
+ // Refer to the function declaration where all the other attributes will be
+ // found.
+ addDIEEntry(SPDie, dwarf::DW_AT_specification, *DeclDie);
+ return true;
+}
+
+void DwarfUnit::applySubprogramAttributes(DISubprogram SP, DIE &SPDie,
+ bool Minimal) {
+ if (!Minimal)
+ if (applySubprogramDefinitionAttributes(SP, SPDie))
+ return;
// Constructors and operators for anonymous aggregates do not have names.
- if (!SP.getName().empty())
- addString(SPDie, dwarf::DW_AT_name, SP.getName());
+ if (!SP->getName().empty())
+ addString(SPDie, dwarf::DW_AT_name, SP->getName());
// Skip the rest of the attributes under -gmlt to save space.
- if(getCUNode().getEmissionKind() == DIBuilder::LineTablesOnly)
+ if (Minimal)
return;
addSourceLine(SPDie, SP);
// Add the prototype if we have a prototype and we have a C like
// language.
uint16_t Language = getLanguage();
- if (SP.isPrototyped() &&
+ if (SP->isPrototyped() &&
(Language == dwarf::DW_LANG_C89 || Language == dwarf::DW_LANG_C99 ||
Language == dwarf::DW_LANG_ObjC))
addFlag(SPDie, dwarf::DW_AT_prototyped);
- DISubroutineType SPTy = SP.getType();
- assert(SPTy.getTag() == dwarf::DW_TAG_subroutine_type &&
+ const MDSubroutineType *SPTy = SP->getType();
+ assert(SPTy->getTag() == dwarf::DW_TAG_subroutine_type &&
"the type of a subprogram should be a subroutine");
- DITypeArray Args = SPTy.getTypeArray();
+ auto Args = SPTy->getTypeArray();
// Add a return type. If this is a type like a C/C++ void type we don't add a
// return type.
- if (resolve(Args.getElement(0)))
- addType(SPDie, DIType(resolve(Args.getElement(0))));
+ if (Args.size())
+ if (auto Ty = resolve(Args[0]))
+ addType(SPDie, Ty);
- unsigned VK = SP.getVirtuality();
+ unsigned VK = SP->getVirtuality();
if (VK) {
addUInt(SPDie, dwarf::DW_AT_virtuality, dwarf::DW_FORM_data1, VK);
DIELoc *Block = getDIELoc();
addUInt(*Block, dwarf::DW_FORM_data1, dwarf::DW_OP_constu);
- addUInt(*Block, dwarf::DW_FORM_udata, SP.getVirtualIndex());
+ addUInt(*Block, dwarf::DW_FORM_udata, SP->getVirtualIndex());
addBlock(SPDie, dwarf::DW_AT_vtable_elem_location, Block);
ContainingTypeMap.insert(
- std::make_pair(&SPDie, resolve(SP.getContainingType())));
+ std::make_pair(&SPDie, resolve(SP->getContainingType())));
}
- if (!SP.isDefinition()) {
+ if (!SP->isDefinition()) {
addFlag(SPDie, dwarf::DW_AT_declaration);
// Add arguments. Do not add arguments for subprogram definition. They will
constructSubprogramArguments(SPDie, Args);
}
- if (SP.isArtificial())
+ if (SP->isArtificial())
addFlag(SPDie, dwarf::DW_AT_artificial);
- if (!SP.isLocalToUnit())
+ if (!SP->isLocalToUnit())
addFlag(SPDie, dwarf::DW_AT_external);
- if (SP.isOptimized())
+ if (SP->isOptimized())
addFlag(SPDie, dwarf::DW_AT_APPLE_optimized);
- if (unsigned isa = Asm->getISAEncoding()) {
+ if (unsigned isa = Asm->getISAEncoding())
addUInt(SPDie, dwarf::DW_AT_APPLE_isa, dwarf::DW_FORM_flag, isa);
- }
- if (SP.isLValueReference())
+ if (SP->isLValueReference())
addFlag(SPDie, dwarf::DW_AT_reference);
- if (SP.isRValueReference())
+ if (SP->isRValueReference())
addFlag(SPDie, dwarf::DW_AT_rvalue_reference);
- if (SP.isProtected())
+ if (SP->isProtected())
addUInt(SPDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
dwarf::DW_ACCESS_protected);
- else if (SP.isPrivate())
+ else if (SP->isPrivate())
addUInt(SPDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
dwarf::DW_ACCESS_private);
- else if (SP.isPublic())
+ else if (SP->isPublic())
addUInt(SPDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
dwarf::DW_ACCESS_public);
- if (SP.isExplicit())
+ if (SP->isExplicit())
addFlag(SPDie, dwarf::DW_AT_explicit);
}
-void DwarfUnit::applyVariableAttributes(const DbgVariable &Var,
- DIE &VariableDie) {
- StringRef Name = Var.getName();
- if (!Name.empty())
- addString(VariableDie, dwarf::DW_AT_name, Name);
- addSourceLine(VariableDie, Var.getVariable());
- addType(VariableDie, Var.getType());
- if (Var.isArtificial())
- addFlag(VariableDie, dwarf::DW_AT_artificial);
-}
-
-/// 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);
// C/C++. The Count value is the number of elements. Values are 64 bit. If
// Count == -1 then the array is unbounded and we do not emit
// DW_AT_lower_bound and DW_AT_count attributes.
- int64_t LowerBound = SR.getLo();
+ int64_t LowerBound = SR->getLowerBound();
int64_t DefaultLowerBound = getDefaultLowerBound();
- int64_t Count = SR.getCount();
+ int64_t Count = SR->getCount();
if (DefaultLowerBound == -1 || LowerBound != DefaultLowerBound)
addUInt(DW_Subrange, dwarf::DW_AT_lower_bound, None, LowerBound);
addUInt(DW_Subrange, dwarf::DW_AT_count, None, Count);
}
-/// constructArrayTypeDIE - Construct array type DIE from DICompositeType.
-void DwarfUnit::constructArrayTypeDIE(DIE &Buffer, DICompositeType CTy) {
- if (CTy.isVector())
+DIE *DwarfUnit::getIndexTyDie() {
+ if (IndexTyDie)
+ return IndexTyDie;
+ // Construct an integer type to use for indexes.
+ IndexTyDie = &createAndAddDIE(dwarf::DW_TAG_base_type, UnitDie);
+ addString(*IndexTyDie, dwarf::DW_AT_name, "sizetype");
+ addUInt(*IndexTyDie, dwarf::DW_AT_byte_size, None, sizeof(int64_t));
+ addUInt(*IndexTyDie, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1,
+ dwarf::DW_ATE_unsigned);
+ return IndexTyDie;
+}
+
+void DwarfUnit::constructArrayTypeDIE(DIE &Buffer, const MDCompositeType *CTy) {
+ if (CTy->isVector())
addFlag(Buffer, dwarf::DW_AT_GNU_vector);
// Emit the element type.
- addType(Buffer, resolve(CTy.getTypeDerivedFrom()));
+ addType(Buffer, resolve(CTy->getBaseType()));
// Get an anonymous type for index type.
// FIXME: This type should be passed down from the front end
// as different languages may have different sizes for indexes.
DIE *IdxTy = getIndexTyDie();
- if (!IdxTy) {
- // Construct an integer type to use for indexes.
- IdxTy = &createAndAddDIE(dwarf::DW_TAG_base_type, UnitDie);
- addString(*IdxTy, dwarf::DW_AT_name, "sizetype");
- addUInt(*IdxTy, dwarf::DW_AT_byte_size, None, sizeof(int64_t));
- addUInt(*IdxTy, dwarf::DW_AT_encoding, dwarf::DW_FORM_data1,
- dwarf::DW_ATE_unsigned);
- setIndexTyDie(IdxTy);
- }
// Add subranges to array type.
- DIArray Elements = CTy.getElements();
- for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
- DIDescriptor Element = Elements.getElement(i);
- if (Element.getTag() == dwarf::DW_TAG_subrange_type)
- constructSubrangeDIE(Buffer, DISubrange(Element), IdxTy);
+ DIArray Elements = CTy->getElements();
+ for (unsigned i = 0, N = Elements.size(); i < N; ++i) {
+ // FIXME: Should this really be such a loose cast?
+ if (auto *Element = dyn_cast_or_null<DebugNode>(Elements[i]))
+ if (Element->getTag() == dwarf::DW_TAG_subrange_type)
+ constructSubrangeDIE(Buffer, cast<MDSubrange>(Element), IdxTy);
}
}
-/// constructEnumTypeDIE - Construct an enum type DIE from DICompositeType.
-void DwarfUnit::constructEnumTypeDIE(DIE &Buffer, DICompositeType CTy) {
- DIArray Elements = CTy.getElements();
+void DwarfUnit::constructEnumTypeDIE(DIE &Buffer, const MDCompositeType *CTy) {
+ DIArray Elements = CTy->getElements();
// Add enumerators to enumeration type.
- for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
- DIEnumerator Enum(Elements.getElement(i));
- if (Enum.isEnumerator()) {
+ for (unsigned i = 0, N = Elements.size(); i < N; ++i) {
+ auto *Enum = dyn_cast_or_null<MDEnumerator>(Elements[i]);
+ if (Enum) {
DIE &Enumerator = createAndAddDIE(dwarf::DW_TAG_enumerator, Buffer);
- StringRef Name = Enum.getName();
+ StringRef Name = Enum->getName();
addString(Enumerator, dwarf::DW_AT_name, Name);
- int64_t Value = Enum.getEnumValue();
+ int64_t Value = Enum->getValue();
addSInt(Enumerator, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata,
Value);
}
}
- DIType DTy = resolve(CTy.getTypeDerivedFrom());
+ const MDType *DTy = resolve(CTy->getBaseType());
if (DTy) {
addType(Buffer, DTy);
addFlag(Buffer, dwarf::DW_AT_enum_class);
}
}
-/// constructContainingTypeDIEs - Construct DIEs for types that contain
-/// vtables.
void DwarfUnit::constructContainingTypeDIEs() {
- for (DenseMap<DIE *, const MDNode *>::iterator CI = ContainingTypeMap.begin(),
- CE = ContainingTypeMap.end();
+ for (auto CI = ContainingTypeMap.begin(), CE = ContainingTypeMap.end();
CI != CE; ++CI) {
DIE &SPDie = *CI->first;
- DIDescriptor D(CI->second);
+ const DebugNode *D = CI->second;
if (!D)
continue;
DIE *NDie = getDIE(D);
}
}
-/// constructMemberDIE - Construct member DIE from DIDerivedType.
-void DwarfUnit::constructMemberDIE(DIE &Buffer, DIDerivedType DT) {
- DIE &MemberDie = createAndAddDIE(DT.getTag(), Buffer);
- StringRef Name = DT.getName();
+void DwarfUnit::constructMemberDIE(DIE &Buffer, const MDDerivedType *DT) {
+ DIE &MemberDie = createAndAddDIE(DT->getTag(), Buffer);
+ StringRef Name = DT->getName();
if (!Name.empty())
addString(MemberDie, dwarf::DW_AT_name, Name);
- addType(MemberDie, resolve(DT.getTypeDerivedFrom()));
+ addType(MemberDie, resolve(DT->getBaseType()));
addSourceLine(MemberDie, DT);
- if (DT.getTag() == dwarf::DW_TAG_inheritance && DT.isVirtual()) {
+ if (DT->getTag() == dwarf::DW_TAG_inheritance && DT->isVirtual()) {
// For C++, virtual base classes are not at fixed offset. Use following
// expression to extract appropriate offset from vtable.
addUInt(*VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_dup);
addUInt(*VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
addUInt(*VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_constu);
- addUInt(*VBaseLocationDie, dwarf::DW_FORM_udata, DT.getOffsetInBits());
+ addUInt(*VBaseLocationDie, dwarf::DW_FORM_udata, DT->getOffsetInBits());
addUInt(*VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_minus);
addUInt(*VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_deref);
addUInt(*VBaseLocationDie, dwarf::DW_FORM_data1, dwarf::DW_OP_plus);
addBlock(MemberDie, dwarf::DW_AT_data_member_location, VBaseLocationDie);
} else {
- uint64_t Size = DT.getSizeInBits();
+ uint64_t Size = DT->getSizeInBits();
uint64_t FieldSize = getBaseTypeSize(DD, DT);
uint64_t OffsetInBytes;
- if (Size != FieldSize) {
+ if (FieldSize && Size != FieldSize) {
// Handle bitfield, assume bytes are 8 bits.
addUInt(MemberDie, dwarf::DW_AT_byte_size, None, FieldSize/8);
addUInt(MemberDie, dwarf::DW_AT_bit_size, None, Size);
- uint64_t Offset = DT.getOffsetInBits();
- uint64_t AlignMask = ~(DT.getAlignInBits() - 1);
+ uint64_t Offset = DT->getOffsetInBits();
+ uint64_t AlignMask = ~(DT->getAlignInBits() - 1);
uint64_t HiMark = (Offset + FieldSize) & AlignMask;
uint64_t FieldOffset = (HiMark - FieldSize);
Offset -= FieldOffset;
OffsetInBytes = FieldOffset >> 3;
} else
// This is not a bitfield.
- OffsetInBytes = DT.getOffsetInBits() >> 3;
+ OffsetInBytes = DT->getOffsetInBits() >> 3;
if (DD->getDwarfVersion() <= 2) {
DIELoc *MemLocationDie = new (DIEValueAllocator) DIELoc();
OffsetInBytes);
}
- if (DT.isProtected())
+ if (DT->isProtected())
addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
dwarf::DW_ACCESS_protected);
- else if (DT.isPrivate())
+ else if (DT->isPrivate())
addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
dwarf::DW_ACCESS_private);
// Otherwise C++ member and base classes are considered public.
- else if (DT.isPublic())
+ else if (DT->isPublic())
addUInt(MemberDie, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
dwarf::DW_ACCESS_public);
- if (DT.isVirtual())
+ if (DT->isVirtual())
addUInt(MemberDie, dwarf::DW_AT_virtuality, dwarf::DW_FORM_data1,
dwarf::DW_VIRTUALITY_virtual);
// Objective-C properties.
- if (MDNode *PNode = DT.getObjCProperty())
+ if (MDNode *PNode = DT->getObjCProperty())
if (DIEEntry *PropertyDie = getDIEEntry(PNode))
MemberDie.addValue(dwarf::DW_AT_APPLE_property, dwarf::DW_FORM_ref4,
PropertyDie);
- if (DT.isArtificial())
+ if (DT->isArtificial())
addFlag(MemberDie, dwarf::DW_AT_artificial);
}
-/// getOrCreateStaticMemberDIE - Create new DIE for C++ static member.
-DIE *DwarfUnit::getOrCreateStaticMemberDIE(DIDerivedType DT) {
- if (!DT.Verify())
+DIE *DwarfUnit::getOrCreateStaticMemberDIE(const MDDerivedType *DT) {
+ if (!DT)
return nullptr;
// Construct the context before querying for the existence of the DIE in case
// such construction creates the DIE.
- DIE *ContextDIE = getOrCreateContextDIE(resolve(DT.getContext()));
+ DIE *ContextDIE = getOrCreateContextDIE(resolve(DT->getScope()));
assert(dwarf::isType(ContextDIE->getTag()) &&
"Static member should belong to a type.");
if (DIE *StaticMemberDIE = getDIE(DT))
return StaticMemberDIE;
- DIE &StaticMemberDIE = createAndAddDIE(DT.getTag(), *ContextDIE, DT);
+ DIE &StaticMemberDIE = createAndAddDIE(DT->getTag(), *ContextDIE, DT);
- DIType Ty = resolve(DT.getTypeDerivedFrom());
+ const MDType *Ty = resolve(DT->getBaseType());
- addString(StaticMemberDIE, dwarf::DW_AT_name, DT.getName());
+ addString(StaticMemberDIE, dwarf::DW_AT_name, DT->getName());
addType(StaticMemberDIE, Ty);
addSourceLine(StaticMemberDIE, DT);
addFlag(StaticMemberDIE, dwarf::DW_AT_external);
// FIXME: We could omit private if the parent is a class_type, and
// public if the parent is something else.
- if (DT.isProtected())
+ if (DT->isProtected())
addUInt(StaticMemberDIE, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
dwarf::DW_ACCESS_protected);
- else if (DT.isPrivate())
+ else if (DT->isPrivate())
addUInt(StaticMemberDIE, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
dwarf::DW_ACCESS_private);
- else if (DT.isPublic())
+ else if (DT->isPublic())
addUInt(StaticMemberDIE, dwarf::DW_AT_accessibility, dwarf::DW_FORM_data1,
dwarf::DW_ACCESS_public);
- if (const ConstantInt *CI = dyn_cast_or_null<ConstantInt>(DT.getConstant()))
+ if (const ConstantInt *CI = dyn_cast_or_null<ConstantInt>(DT->getConstant()))
addConstantValue(StaticMemberDIE, CI, Ty);
- if (const ConstantFP *CFP = dyn_cast_or_null<ConstantFP>(DT.getConstant()))
+ if (const ConstantFP *CFP = dyn_cast_or_null<ConstantFP>(DT->getConstant()))
addConstantFPValue(StaticMemberDIE, CFP);
return &StaticMemberDIE;
}
-void DwarfUnit::emitHeader(const MCSymbol *ASectionSym) const {
+void DwarfUnit::emitHeader(bool UseOffsets) {
+ // Emit size of content not including length itself
+ Asm->OutStreamer.AddComment("Length of Unit");
+ Asm->EmitInt32(getHeaderSize() + UnitDie.getSize());
+
Asm->OutStreamer.AddComment("DWARF version number");
Asm->EmitInt16(DD->getDwarfVersion());
Asm->OutStreamer.AddComment("Offset Into Abbrev. Section");
+
// We share one abbreviations table across all units so it's always at the
// start of the section. Use a relocatable offset where needed to ensure
// linking doesn't invalidate that offset.
- if (ASectionSym)
- Asm->EmitSectionOffset(ASectionSym, ASectionSym);
+ const TargetLoweringObjectFile &TLOF = Asm->getObjFileLowering();
+ if (!UseOffsets)
+ Asm->emitSectionOffset(TLOF.getDwarfAbbrevSection()->getBeginSymbol());
else
- // Use a constant value when no symbol is provided.
Asm->EmitInt32(0);
+
Asm->OutStreamer.AddComment("Address Size (in bytes)");
Asm->EmitInt8(Asm->getDataLayout().getPointerSize());
}
-void DwarfTypeUnit::emitHeader(const MCSymbol *ASectionSym) const {
- DwarfUnit::emitHeader(ASectionSym);
+void DwarfUnit::initSection(const MCSection *Section) {
+ assert(!this->Section);
+ this->Section = Section;
+}
+
+void DwarfTypeUnit::emitHeader(bool UseOffsets) {
+ DwarfUnit::emitHeader(UseOffsets);
Asm->OutStreamer.AddComment("Type Signature");
Asm->OutStreamer.EmitIntValue(TypeSignature, sizeof(TypeSignature));
Asm->OutStreamer.AddComment("Type DIE Offset");
sizeof(Ty->getOffset()));
}
-void DwarfTypeUnit::initSection(const MCSection *Section) {
- assert(!this->Section);
- this->Section = Section;
- // Since each type unit is contained in its own COMDAT section, the begin
- // label and the section label are the same. Using the begin label emission in
- // DwarfDebug to emit the section label as well is slightly subtle/sneaky, but
- // the only other alternative of lazily constructing start-of-section labels
- // and storing a mapping in DwarfDebug (or AsmPrinter).
- this->SectionSym = this->LabelBegin =
- Asm->GetTempSymbol(Section->getLabelBeginName(), getUniqueID());
- this->LabelEnd =
- Asm->GetTempSymbol(Section->getLabelEndName(), getUniqueID());
+bool DwarfTypeUnit::isDwoUnit() const {
+ // Since there are no skeleton type units, all type units are dwo type units
+ // when split DWARF is being used.
+ return DD->useSplitDwarf();
}
projects / oota-llvm.git / blobdiff