addLabel(Die, (dwarf::Attribute)0, Form, Label);
}
-/// addSectionLabel - Add a Dwarf section label attribute data and value.
-///
-void DwarfUnit::addSectionLabel(DIE &Die, dwarf::Attribute Attribute,
- const MCSymbol *Label) {
- if (DD->getDwarfVersion() >= 4)
- addLabel(Die, Attribute, dwarf::DW_FORM_sec_offset, Label);
- else
- addLabel(Die, Attribute, dwarf::DW_FORM_data4, Label);
-}
-
/// addSectionOffset - Add an offset into a section attribute data and value.
///
void DwarfUnit::addSectionOffset(DIE &Die, dwarf::Attribute Attribute,
}
}
-/// addSectionDelta - Add a section label delta attribute data and value.
-///
-void DwarfUnit::addSectionDelta(DIE &Die, dwarf::Attribute Attribute,
- const MCSymbol *Hi, const MCSymbol *Lo) {
- DIEValue *Value = new (DIEValueAllocator) DIEDelta(Hi, Lo);
- Die.addValue(Attribute, DD->getDwarfVersion() >= 4 ? dwarf::DW_FORM_sec_offset
- : dwarf::DW_FORM_data4,
- Value);
-}
-
void DwarfUnit::addLabelDelta(DIE &Die, dwarf::Attribute Attribute,
const MCSymbol *Hi, const MCSymbol *Lo) {
DIEValue *Value = new (DIEValueAllocator) DIEDelta(Hi, Lo);
}
}
-/// constructVariableDIE - Construct a DIE for the given DbgVariable.
-std::unique_ptr<DIE> DwarfUnit::constructVariableDIE(DbgVariable &DV,
- bool Abstract) {
- auto D = constructVariableDIEImpl(DV, Abstract);
- DV.setDIE(*D);
- return D;
-}
-
-std::unique_ptr<DIE> DwarfUnit::constructVariableDIEImpl(const DbgVariable &DV,
- bool Abstract) {
- // Define variable debug information entry.
- auto VariableDie = make_unique<DIE>(DV.getTag());
-
- if (Abstract) {
- applyVariableAttributes(DV, *VariableDie);
- return VariableDie;
- }
-
- // Add variable address.
-
- unsigned Offset = DV.getDotDebugLocOffset();
- if (Offset != ~0U) {
- addLocationList(*VariableDie, dwarf::DW_AT_location, Offset);
- return VariableDie;
- }
-
- // Check if variable is described by a DBG_VALUE instruction.
- if (const MachineInstr *DVInsn = DV.getMInsn()) {
- assert(DVInsn->getNumOperands() == 4);
- if (DVInsn->getOperand(0).isReg()) {
- const MachineOperand RegOp = DVInsn->getOperand(0);
- // If the second operand is an immediate, this is an indirect value.
- if (DVInsn->getOperand(1).isImm()) {
- MachineLocation Location(RegOp.getReg(),
- DVInsn->getOperand(1).getImm());
- addVariableAddress(DV, *VariableDie, Location);
- } else if (RegOp.getReg())
- addVariableAddress(DV, *VariableDie, MachineLocation(RegOp.getReg()));
- } else if (DVInsn->getOperand(0).isImm())
- addConstantValue(*VariableDie, DVInsn->getOperand(0), DV.getType());
- else if (DVInsn->getOperand(0).isFPImm())
- addConstantFPValue(*VariableDie, DVInsn->getOperand(0));
- else if (DVInsn->getOperand(0).isCImm())
- addConstantValue(*VariableDie, DVInsn->getOperand(0).getCImm(),
- DV.getType());
-
- return VariableDie;
- }
-
- // .. else use frame index.
- int FI = DV.getFrameIndex();
- if (FI != ~0) {
- unsigned FrameReg = 0;
- const TargetFrameLowering *TFI =
- Asm->TM.getSubtargetImpl()->getFrameLowering();
- int Offset = TFI->getFrameIndexReference(*Asm->MF, FI, FrameReg);
- MachineLocation Location(FrameReg, Offset);
- addVariableAddress(DV, *VariableDie, Location);
- }
-
- return VariableDie;
-}
-
/// constructMemberDIE - Construct member DIE from DIDerivedType.
void DwarfUnit::constructMemberDIE(DIE &Buffer, DIDerivedType DT) {
DIE &MemberDie = createAndAddDIE(DT.getTag(), Buffer);