X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FAsmPrinter%2FDIE.cpp;h=47f2dec018be9b4f7e508cd03480892656a45479;hb=3755781debe4a7feb6486f6d802813daa1b80dda;hp=8a7b8608b71f622e174f569f4d6e6d0e61c1d20b;hpb=2d5d104c5b945a214c117328fd9982360782cef0;p=oota-llvm.git diff --git a/lib/CodeGen/AsmPrinter/DIE.cpp b/lib/CodeGen/AsmPrinter/DIE.cpp index 8a7b8608b71..47f2dec018b 100644 --- a/lib/CodeGen/AsmPrinter/DIE.cpp +++ b/lib/CodeGen/AsmPrinter/DIE.cpp @@ -11,20 +11,24 @@ // //===----------------------------------------------------------------------===// -#include "DIE.h" +#include "llvm/CodeGen/DIE.h" +#include "DwarfCompileUnit.h" #include "DwarfDebug.h" +#include "DwarfUnit.h" #include "llvm/ADT/Twine.h" #include "llvm/CodeGen/AsmPrinter.h" #include "llvm/IR/DataLayout.h" #include "llvm/MC/MCAsmInfo.h" +#include "llvm/MC/MCContext.h" #include "llvm/MC/MCStreamer.h" #include "llvm/MC/MCSymbol.h" -#include "llvm/Support/Allocator.h" #include "llvm/Support/Debug.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/Format.h" #include "llvm/Support/FormattedStream.h" +#include "llvm/Support/LEB128.h" #include "llvm/Support/MD5.h" +#include "llvm/Support/raw_ostream.h" using namespace llvm; //===----------------------------------------------------------------------===// @@ -48,7 +52,7 @@ void DIEAbbrevData::Profile(FoldingSetNodeID &ID) const { /// void DIEAbbrev::Profile(FoldingSetNodeID &ID) const { ID.AddInteger(unsigned(Tag)); - ID.AddInteger(ChildrenFlag); + ID.AddInteger(unsigned(Children)); // For each attribute description. for (unsigned i = 0, N = Data.size(); i < N; ++i) @@ -57,12 +61,12 @@ void DIEAbbrev::Profile(FoldingSetNodeID &ID) const { /// Emit - Print the abbreviation using the specified asm printer. /// -void DIEAbbrev::Emit(AsmPrinter *AP) const { +void DIEAbbrev::Emit(const AsmPrinter *AP) const { // Emit its Dwarf tag type. AP->EmitULEB128(Tag, dwarf::TagString(Tag)); // Emit whether it has children DIEs. - AP->EmitULEB128(ChildrenFlag, dwarf::ChildrenString(ChildrenFlag)); + AP->EmitULEB128((unsigned)Children, dwarf::ChildrenString(Children)); // For each attribute description. for (unsigned i = 0, N = Data.size(); i < N; ++i) { @@ -89,7 +93,7 @@ void DIEAbbrev::print(raw_ostream &O) { << " " << dwarf::TagString(Tag) << " " - << dwarf::ChildrenString(ChildrenFlag) + << dwarf::ChildrenString(Children) << '\n'; for (unsigned i = 0, N = Data.size(); i < N; ++i) { @@ -103,15 +107,6 @@ void DIEAbbrev::print(raw_ostream &O) { void DIEAbbrev::dump() { print(dbgs()); } #endif -//===----------------------------------------------------------------------===// -// DIE Implementation -//===----------------------------------------------------------------------===// - -DIE::~DIE() { - for (unsigned i = 0, N = Children.size(); i < N; ++i) - delete Children[i]; -} - /// Climb up the parent chain to get the unit DIE to which this DIE /// belongs. const DIE *DIE::getUnit() const { @@ -130,10 +125,10 @@ const DIE *DIE::getUnitOrNull() const { return p; p = p->getParent(); } - return NULL; + return nullptr; } -DIEValue *DIE::findAttribute(uint16_t Attribute) const { +DIEValue *DIE::findAttribute(dwarf::Attribute Attribute) const { const SmallVectorImpl &Values = getValues(); const DIEAbbrev &Abbrevs = getAbbrev(); @@ -142,7 +137,7 @@ DIEValue *DIE::findAttribute(uint16_t Attribute) const { for (size_t i = 0; i < Values.size(); ++i) if (Abbrevs.getData()[i].getAttribute() == Attribute) return Values[i]; - return NULL; + return nullptr; } #ifndef NDEBUG @@ -160,7 +155,7 @@ void DIE::print(raw_ostream &O, unsigned IndentCount) const { O << Indent << dwarf::TagString(Abbrev.getTag()) << " " - << dwarf::ChildrenString(Abbrev.getChildrenFlag()) << "\n"; + << dwarf::ChildrenString(Abbrev.hasChildren()) << "\n"; } else { O << "Size: " << Size << "\n"; } @@ -196,9 +191,67 @@ void DIE::dump() { } #endif -void DIEValue::anchor() { } +void DIEValue::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const { + switch (Ty) { +#define EMIT_VALUE_IMPL(Kind) \ + case is##Kind: \ + cast(this)->EmitValueImpl(AP, Form); \ + break; + EMIT_VALUE_IMPL(Integer) + EMIT_VALUE_IMPL(String) + EMIT_VALUE_IMPL(Expr) + EMIT_VALUE_IMPL(Label) + EMIT_VALUE_IMPL(Delta) + EMIT_VALUE_IMPL(Entry) + EMIT_VALUE_IMPL(TypeSignature) + EMIT_VALUE_IMPL(Block) + EMIT_VALUE_IMPL(Loc) + EMIT_VALUE_IMPL(LocList) +#undef EMIT_VALUE_IMPL + } +} + +unsigned DIEValue::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const { + switch (Ty) { +#define SIZE_OF_IMPL(Kind) \ + case is##Kind: \ + return cast(this)->SizeOfImpl(AP, Form); + SIZE_OF_IMPL(Integer) + SIZE_OF_IMPL(String) + SIZE_OF_IMPL(Expr) + SIZE_OF_IMPL(Label) + SIZE_OF_IMPL(Delta) + SIZE_OF_IMPL(Entry) + SIZE_OF_IMPL(TypeSignature) + SIZE_OF_IMPL(Block) + SIZE_OF_IMPL(Loc) + SIZE_OF_IMPL(LocList) +#undef SIZE_OF_IMPL + } + llvm_unreachable("Unknown DIE kind"); +} #ifndef NDEBUG +void DIEValue::print(raw_ostream &O) const { + switch (Ty) { +#define PRINT_IMPL(Kind) \ + case is##Kind: \ + cast(this)->printImpl(O); \ + break; + PRINT_IMPL(Integer) + PRINT_IMPL(String) + PRINT_IMPL(Expr) + PRINT_IMPL(Label) + PRINT_IMPL(Delta) + PRINT_IMPL(Entry) + PRINT_IMPL(TypeSignature) + PRINT_IMPL(Block) + PRINT_IMPL(Loc) + PRINT_IMPL(LocList) +#undef PRINT_IMPL + } +} + void DIEValue::dump() const { print(dbgs()); } @@ -210,14 +263,13 @@ void DIEValue::dump() const { /// EmitValue - Emit integer of appropriate size. /// -void DIEInteger::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const { +void DIEInteger::EmitValueImpl(const AsmPrinter *Asm, dwarf::Form Form) const { unsigned Size = ~0U; switch (Form) { case dwarf::DW_FORM_flag_present: // Emit something to keep the lines and comments in sync. // FIXME: Is there a better way to do this? - if (Asm->OutStreamer.hasRawTextSupport()) - Asm->OutStreamer.EmitRawText(""); + Asm->OutStreamer->AddBlankLine(); return; case dwarf::DW_FORM_flag: // Fall thru case dwarf::DW_FORM_ref1: // Fall thru @@ -225,6 +277,7 @@ void DIEInteger::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const { case dwarf::DW_FORM_ref2: // Fall thru case dwarf::DW_FORM_data2: Size = 2; break; case dwarf::DW_FORM_sec_offset: // Fall thru + case dwarf::DW_FORM_strp: // Fall thru case dwarf::DW_FORM_ref4: // Fall thru case dwarf::DW_FORM_data4: Size = 4; break; case dwarf::DW_FORM_ref8: // Fall thru @@ -236,14 +289,17 @@ void DIEInteger::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const { case dwarf::DW_FORM_sdata: Asm->EmitSLEB128(Integer); return; case dwarf::DW_FORM_addr: Size = Asm->getDataLayout().getPointerSize(); break; + case dwarf::DW_FORM_ref_addr: + Size = SizeOf(Asm, dwarf::DW_FORM_ref_addr); + break; default: llvm_unreachable("DIE Value form not supported yet"); } - Asm->OutStreamer.EmitIntValue(Integer, Size); + Asm->OutStreamer->EmitIntValue(Integer, Size); } /// SizeOf - Determine size of integer value in bytes. /// -unsigned DIEInteger::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { +unsigned DIEInteger::SizeOfImpl(const AsmPrinter *AP, dwarf::Form Form) const { switch (Form) { case dwarf::DW_FORM_flag_present: return 0; case dwarf::DW_FORM_flag: // Fall thru @@ -252,22 +308,27 @@ unsigned DIEInteger::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { case dwarf::DW_FORM_ref2: // Fall thru case dwarf::DW_FORM_data2: return sizeof(int16_t); case dwarf::DW_FORM_sec_offset: // Fall thru + case dwarf::DW_FORM_strp: // Fall thru case dwarf::DW_FORM_ref4: // Fall thru case dwarf::DW_FORM_data4: return sizeof(int32_t); case dwarf::DW_FORM_ref8: // Fall thru case dwarf::DW_FORM_ref_sig8: // Fall thru case dwarf::DW_FORM_data8: return sizeof(int64_t); - case dwarf::DW_FORM_GNU_str_index: return MCAsmInfo::getULEB128Size(Integer); - case dwarf::DW_FORM_GNU_addr_index: return MCAsmInfo::getULEB128Size(Integer); - case dwarf::DW_FORM_udata: return MCAsmInfo::getULEB128Size(Integer); - case dwarf::DW_FORM_sdata: return MCAsmInfo::getSLEB128Size(Integer); + case dwarf::DW_FORM_GNU_str_index: return getULEB128Size(Integer); + case dwarf::DW_FORM_GNU_addr_index: return getULEB128Size(Integer); + case dwarf::DW_FORM_udata: return getULEB128Size(Integer); + case dwarf::DW_FORM_sdata: return getSLEB128Size(Integer); case dwarf::DW_FORM_addr: return AP->getDataLayout().getPointerSize(); + case dwarf::DW_FORM_ref_addr: + if (AP->OutStreamer->getContext().getDwarfVersion() == 2) + return AP->getDataLayout().getPointerSize(); + return sizeof(int32_t); default: llvm_unreachable("DIE Value form not supported yet"); } } #ifndef NDEBUG -void DIEInteger::print(raw_ostream &O) const { +void DIEInteger::printImpl(raw_ostream &O) const { O << "Int: " << (int64_t)Integer << " 0x"; O.write_hex(Integer); } @@ -279,13 +340,13 @@ void DIEInteger::print(raw_ostream &O) const { /// EmitValue - Emit expression value. /// -void DIEExpr::EmitValue(AsmPrinter *AP, dwarf::Form Form) const { - AP->OutStreamer.EmitValue(Expr, SizeOf(AP, Form)); +void DIEExpr::EmitValueImpl(const AsmPrinter *AP, dwarf::Form Form) const { + AP->OutStreamer->EmitValue(Expr, SizeOf(AP, Form)); } /// SizeOf - Determine size of expression value in bytes. /// -unsigned DIEExpr::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { +unsigned DIEExpr::SizeOfImpl(const AsmPrinter *AP, dwarf::Form Form) const { if (Form == dwarf::DW_FORM_data4) return 4; if (Form == dwarf::DW_FORM_sec_offset) return 4; if (Form == dwarf::DW_FORM_strp) return 4; @@ -293,7 +354,7 @@ unsigned DIEExpr::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { } #ifndef NDEBUG -void DIEExpr::print(raw_ostream &O) const { +void DIEExpr::printImpl(raw_ostream &O) const { O << "Expr: "; Expr->print(O); } @@ -305,7 +366,7 @@ void DIEExpr::print(raw_ostream &O) const { /// EmitValue - Emit label value. /// -void DIELabel::EmitValue(AsmPrinter *AP, dwarf::Form Form) const { +void DIELabel::EmitValueImpl(const AsmPrinter *AP, dwarf::Form Form) const { AP->EmitLabelReference(Label, SizeOf(AP, Form), Form == dwarf::DW_FORM_strp || Form == dwarf::DW_FORM_sec_offset || @@ -314,7 +375,7 @@ void DIELabel::EmitValue(AsmPrinter *AP, dwarf::Form Form) const { /// SizeOf - Determine size of label value in bytes. /// -unsigned DIELabel::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { +unsigned DIELabel::SizeOfImpl(const AsmPrinter *AP, dwarf::Form Form) const { if (Form == dwarf::DW_FORM_data4) return 4; if (Form == dwarf::DW_FORM_sec_offset) return 4; if (Form == dwarf::DW_FORM_strp) return 4; @@ -322,7 +383,7 @@ unsigned DIELabel::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { } #ifndef NDEBUG -void DIELabel::print(raw_ostream &O) const { +void DIELabel::printImpl(raw_ostream &O) const { O << "Lbl: " << Label->getName(); } #endif @@ -333,13 +394,13 @@ void DIELabel::print(raw_ostream &O) const { /// EmitValue - Emit delta value. /// -void DIEDelta::EmitValue(AsmPrinter *AP, dwarf::Form Form) const { +void DIEDelta::EmitValueImpl(const AsmPrinter *AP, dwarf::Form Form) const { AP->EmitLabelDifference(LabelHi, LabelLo, SizeOf(AP, Form)); } /// SizeOf - Determine size of delta value in bytes. /// -unsigned DIEDelta::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { +unsigned DIEDelta::SizeOfImpl(const AsmPrinter *AP, dwarf::Form Form) const { if (Form == dwarf::DW_FORM_data4) return 4; if (Form == dwarf::DW_FORM_sec_offset) return 4; if (Form == dwarf::DW_FORM_strp) return 4; @@ -347,7 +408,7 @@ unsigned DIEDelta::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { } #ifndef NDEBUG -void DIEDelta::print(raw_ostream &O) const { +void DIEDelta::printImpl(raw_ostream &O) const { O << "Del: " << LabelHi->getName() << "-" << LabelLo->getName(); } #endif @@ -358,20 +419,50 @@ void DIEDelta::print(raw_ostream &O) const { /// EmitValue - Emit string value. /// -void DIEString::EmitValue(AsmPrinter *AP, dwarf::Form Form) const { - Access->EmitValue(AP, Form); +void DIEString::EmitValueImpl(const AsmPrinter *AP, dwarf::Form Form) const { + assert( + (Form == dwarf::DW_FORM_strp || Form == dwarf::DW_FORM_GNU_str_index) && + "Expected valid string form"); + + // Index of string in symbol table. + if (Form == dwarf::DW_FORM_GNU_str_index) { + DIEInteger(S.getIndex()).EmitValue(AP, Form); + return; + } + + // Relocatable symbol. + assert(Form == dwarf::DW_FORM_strp); + if (AP->MAI->doesDwarfUseRelocationsAcrossSections()) { + DIELabel(S.getSymbol()).EmitValue(AP, Form); + return; + } + + // Offset into symbol table. + DIEInteger(S.getOffset()).EmitValue(AP, Form); } /// SizeOf - Determine size of delta value in bytes. /// -unsigned DIEString::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { - return Access->SizeOf(AP, Form); +unsigned DIEString::SizeOfImpl(const AsmPrinter *AP, dwarf::Form Form) const { + assert( + (Form == dwarf::DW_FORM_strp || Form == dwarf::DW_FORM_GNU_str_index) && + "Expected valid string form"); + + // Index of string in symbol table. + if (Form == dwarf::DW_FORM_GNU_str_index) + return DIEInteger(S.getIndex()).SizeOf(AP, Form); + + // Relocatable symbol. + if (AP->MAI->doesDwarfUseRelocationsAcrossSections()) + return DIELabel(S.getSymbol()).SizeOf(AP, Form); + + // Offset into symbol table. + return DIEInteger(S.getOffset()).SizeOf(AP, Form); } #ifndef NDEBUG -void DIEString::print(raw_ostream &O) const { - O << "String: " << Str << "\tSymbol: "; - Access->print(O); +void DIEString::printImpl(raw_ostream &O) const { + O << "String: " << S.getString(); } #endif @@ -381,23 +472,111 @@ void DIEString::print(raw_ostream &O) const { /// EmitValue - Emit debug information entry offset. /// -void DIEEntry::EmitValue(AsmPrinter *AP, dwarf::Form Form) const { - AP->EmitInt32(Entry->getOffset()); +void DIEEntry::EmitValueImpl(const AsmPrinter *AP, dwarf::Form Form) const { + + if (Form == dwarf::DW_FORM_ref_addr) { + const DwarfDebug *DD = AP->getDwarfDebug(); + unsigned Addr = Entry.getOffset(); + assert(!DD->useSplitDwarf() && "TODO: dwo files can't have relocations."); + // For DW_FORM_ref_addr, output the offset from beginning of debug info + // section. Entry->getOffset() returns the offset from start of the + // compile unit. + DwarfCompileUnit *CU = DD->lookupUnit(Entry.getUnit()); + assert(CU && "CUDie should belong to a CU."); + Addr += CU->getDebugInfoOffset(); + if (AP->MAI->doesDwarfUseRelocationsAcrossSections()) + AP->EmitLabelPlusOffset(CU->getSectionSym(), Addr, + DIEEntry::getRefAddrSize(AP)); + else + AP->OutStreamer->EmitIntValue(Addr, DIEEntry::getRefAddrSize(AP)); + } else + AP->EmitInt32(Entry.getOffset()); } -unsigned DIEEntry::getRefAddrSize(AsmPrinter *AP) { +unsigned DIEEntry::getRefAddrSize(const AsmPrinter *AP) { // DWARF4: References that use the attribute form DW_FORM_ref_addr are // specified to be four bytes in the DWARF 32-bit format and eight bytes // in the DWARF 64-bit format, while DWARF Version 2 specifies that such // references have the same size as an address on the target system. - if (AP->getDwarfDebug()->getDwarfVersion() == 2) + const DwarfDebug *DD = AP->getDwarfDebug(); + assert(DD && "Expected Dwarf Debug info to be available"); + if (DD->getDwarfVersion() == 2) return AP->getDataLayout().getPointerSize(); return sizeof(int32_t); } #ifndef NDEBUG -void DIEEntry::print(raw_ostream &O) const { - O << format("Die: 0x%lx", (long)(intptr_t)Entry); +void DIEEntry::printImpl(raw_ostream &O) const { + O << format("Die: 0x%lx", (long)(intptr_t)&Entry); +} +#endif + +//===----------------------------------------------------------------------===// +// DIETypeSignature Implementation +//===----------------------------------------------------------------------===// +void DIETypeSignature::EmitValueImpl(const AsmPrinter *Asm, dwarf::Form Form) const { + assert(Form == dwarf::DW_FORM_ref_sig8); + Asm->OutStreamer->EmitIntValue(Unit.getTypeSignature(), 8); +} + +#ifndef NDEBUG +void DIETypeSignature::printImpl(raw_ostream &O) const { + O << format("Type Unit: 0x%lx", Unit.getTypeSignature()); +} +#endif + +//===----------------------------------------------------------------------===// +// DIELoc Implementation +//===----------------------------------------------------------------------===// + +/// ComputeSize - calculate the size of the location expression. +/// +unsigned DIELoc::ComputeSize(const AsmPrinter *AP) const { + if (!Size) { + const SmallVectorImpl &AbbrevData = Abbrev.getData(); + for (unsigned i = 0, N = Values.size(); i < N; ++i) + Size += Values[i]->SizeOf(AP, AbbrevData[i].getForm()); + } + + return Size; +} + +/// EmitValue - Emit location data. +/// +void DIELoc::EmitValueImpl(const AsmPrinter *Asm, dwarf::Form Form) const { + switch (Form) { + default: llvm_unreachable("Improper form for block"); + case dwarf::DW_FORM_block1: Asm->EmitInt8(Size); break; + case dwarf::DW_FORM_block2: Asm->EmitInt16(Size); break; + case dwarf::DW_FORM_block4: Asm->EmitInt32(Size); break; + case dwarf::DW_FORM_block: + case dwarf::DW_FORM_exprloc: + Asm->EmitULEB128(Size); break; + } + + const SmallVectorImpl &AbbrevData = Abbrev.getData(); + for (unsigned i = 0, N = Values.size(); i < N; ++i) + Values[i]->EmitValue(Asm, AbbrevData[i].getForm()); +} + +/// SizeOf - Determine size of location data in bytes. +/// +unsigned DIELoc::SizeOfImpl(const AsmPrinter *AP, dwarf::Form Form) const { + switch (Form) { + case dwarf::DW_FORM_block1: return Size + sizeof(int8_t); + case dwarf::DW_FORM_block2: return Size + sizeof(int16_t); + case dwarf::DW_FORM_block4: return Size + sizeof(int32_t); + case dwarf::DW_FORM_block: + case dwarf::DW_FORM_exprloc: + return Size + getULEB128Size(Size); + default: llvm_unreachable("Improper form for block"); + } +} + +#ifndef NDEBUG +void DIELoc::printImpl(raw_ostream &O) const { + O << "ExprLoc: "; + DIE::print(O, 5); } #endif @@ -407,7 +586,7 @@ void DIEEntry::print(raw_ostream &O) const { /// ComputeSize - calculate the size of the block. /// -unsigned DIEBlock::ComputeSize(AsmPrinter *AP) { +unsigned DIEBlock::ComputeSize(const AsmPrinter *AP) const { if (!Size) { const SmallVectorImpl &AbbrevData = Abbrev.getData(); for (unsigned i = 0, N = Values.size(); i < N; ++i) @@ -419,7 +598,7 @@ unsigned DIEBlock::ComputeSize(AsmPrinter *AP) { /// EmitValue - Emit block data. /// -void DIEBlock::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const { +void DIEBlock::EmitValueImpl(const AsmPrinter *Asm, dwarf::Form Form) const { switch (Form) { default: llvm_unreachable("Improper form for block"); case dwarf::DW_FORM_block1: Asm->EmitInt8(Size); break; @@ -435,19 +614,50 @@ void DIEBlock::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const { /// SizeOf - Determine size of block data in bytes. /// -unsigned DIEBlock::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { +unsigned DIEBlock::SizeOfImpl(const AsmPrinter *AP, dwarf::Form Form) const { switch (Form) { case dwarf::DW_FORM_block1: return Size + sizeof(int8_t); case dwarf::DW_FORM_block2: return Size + sizeof(int16_t); case dwarf::DW_FORM_block4: return Size + sizeof(int32_t); - case dwarf::DW_FORM_block: return Size + MCAsmInfo::getULEB128Size(Size); + case dwarf::DW_FORM_block: return Size + getULEB128Size(Size); default: llvm_unreachable("Improper form for block"); } } #ifndef NDEBUG -void DIEBlock::print(raw_ostream &O) const { +void DIEBlock::printImpl(raw_ostream &O) const { O << "Blk: "; DIE::print(O, 5); } #endif + +//===----------------------------------------------------------------------===// +// DIELocList Implementation +//===----------------------------------------------------------------------===// + +unsigned DIELocList::SizeOfImpl(const AsmPrinter *AP, dwarf::Form Form) const { + if (Form == dwarf::DW_FORM_data4) + return 4; + if (Form == dwarf::DW_FORM_sec_offset) + return 4; + return AP->getDataLayout().getPointerSize(); +} + +/// EmitValue - Emit label value. +/// +void DIELocList::EmitValueImpl(const AsmPrinter *AP, dwarf::Form Form) const { + DwarfDebug *DD = AP->getDwarfDebug(); + MCSymbol *Label = DD->getDebugLocs().getList(Index).Label; + + if (AP->MAI->doesDwarfUseRelocationsAcrossSections() && !DD->useSplitDwarf()) + AP->emitSectionOffset(Label); + else + AP->EmitLabelDifference(Label, Label->getSection().getBeginSymbol(), 4); +} + +#ifndef NDEBUG +void DIELocList::printImpl(raw_ostream &O) const { + O << "LocList: " << Index; + +} +#endif