X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FAsmPrinter%2FDIE.cpp;h=46dbc7693698d39e1277886ffcb08dc2be88d345;hb=34c6bb0ef046b1d4c4387de8553942a4bb4bcde1;hp=73e18cd817b5166faf88ef31cac933cb4bb5e1af;hpb=f3840d2c16a4ec4c879a8ded402835746de380f8;p=oota-llvm.git diff --git a/lib/CodeGen/AsmPrinter/DIE.cpp b/lib/CodeGen/AsmPrinter/DIE.cpp index 73e18cd817b..46dbc769369 100644 --- a/lib/CodeGen/AsmPrinter/DIE.cpp +++ b/lib/CodeGen/AsmPrinter/DIE.cpp @@ -8,21 +8,27 @@ //===----------------------------------------------------------------------===// // // Data structures for DWARF info entries. -// +// //===----------------------------------------------------------------------===// -#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/DataLayout.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; //===----------------------------------------------------------------------===// @@ -32,8 +38,10 @@ using namespace llvm; /// Profile - Used to gather unique data for the abbreviation folding set. /// void DIEAbbrevData::Profile(FoldingSetNodeID &ID) const { - ID.AddInteger(Attribute); - ID.AddInteger(Form); + // Explicitly cast to an integer type for which FoldingSetNodeID has + // overloads. Otherwise MSVC 2010 thinks this call is ambiguous. + ID.AddInteger(unsigned(Attribute)); + ID.AddInteger(unsigned(Form)); } //===----------------------------------------------------------------------===// @@ -43,8 +51,8 @@ void DIEAbbrevData::Profile(FoldingSetNodeID &ID) const { /// Profile - Used to gather unique data for the abbreviation folding set. /// void DIEAbbrev::Profile(FoldingSetNodeID &ID) const { - ID.AddInteger(Tag); - ID.AddInteger(ChildrenFlag); + ID.AddInteger(unsigned(Tag)); + ID.AddInteger(unsigned(Children)); // For each attribute description. for (unsigned i = 0, N = Data.size(); i < N; ++i) @@ -53,26 +61,22 @@ 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. - // FIXME: Doing work even in non-asm-verbose runs. AP->EmitULEB128(Tag, dwarf::TagString(Tag)); // Emit whether it has children DIEs. - // FIXME: Doing work even in non-asm-verbose runs. - 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) { const DIEAbbrevData &AttrData = Data[i]; // Emit attribute type. - // FIXME: Doing work even in non-asm-verbose runs. AP->EmitULEB128(AttrData.getAttribute(), dwarf::AttributeString(AttrData.getAttribute())); // Emit form type. - // FIXME: Doing work even in non-asm-verbose runs. AP->EmitULEB128(AttrData.getForm(), dwarf::FormEncodingString(AttrData.getForm())); } @@ -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) { @@ -103,20 +107,47 @@ void DIEAbbrev::print(raw_ostream &O) { void DIEAbbrev::dump() { print(dbgs()); } #endif -//===----------------------------------------------------------------------===// -// DIE Implementation -//===----------------------------------------------------------------------===// +DIEAbbrev DIE::generateAbbrev() const { + DIEAbbrev Abbrev(Tag, hasChildren()); + for (const DIEValue &V : Values) + Abbrev.AddAttribute(V.getAttribute(), V.getForm()); + return Abbrev; +} -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 { + const DIE *Cu = getUnitOrNull(); + assert(Cu && "We should not have orphaned DIEs."); + return Cu; +} + +/// Climb up the parent chain to get the unit DIE this DIE belongs +/// to. Return NULL if DIE is not added to an owner yet. +const DIE *DIE::getUnitOrNull() const { + const DIE *p = this; + while (p) { + if (p->getTag() == dwarf::DW_TAG_compile_unit || + p->getTag() == dwarf::DW_TAG_type_unit) + return p; + p = p->getParent(); + } + return nullptr; +} + +DIEValue DIE::findAttribute(dwarf::Attribute Attribute) const { + // Iterate through all the attributes until we find the one we're + // looking for, if we can't find it return NULL. + for (const auto &V : values()) + if (V.getAttribute() == Attribute) + return V; + return DIEValue(); } #ifndef NDEBUG -void DIE::print(raw_ostream &O, unsigned IncIndent) { - IndentCount += IncIndent; +void DIE::print(raw_ostream &O, unsigned IndentCount) const { const std::string Indent(IndentCount, ' '); - bool isBlock = Abbrev.getTag() == 0; + bool isBlock = getTag() == 0; if (!isBlock) { O << Indent @@ -126,38 +157,33 @@ void DIE::print(raw_ostream &O, unsigned IncIndent) { << ", Size: " << Size << "\n"; O << Indent - << dwarf::TagString(Abbrev.getTag()) + << dwarf::TagString(getTag()) << " " - << dwarf::ChildrenString(Abbrev.getChildrenFlag()) << "\n"; + << dwarf::ChildrenString(hasChildren()) << "\n"; } else { O << "Size: " << Size << "\n"; } - const SmallVector &Data = Abbrev.getData(); - IndentCount += 2; - for (unsigned i = 0, N = Data.size(); i < N; ++i) { + unsigned I = 0; + for (const auto &V : Values) { O << Indent; if (!isBlock) - O << dwarf::AttributeString(Data[i].getAttribute()); + O << dwarf::AttributeString(V.getAttribute()); else - O << "Blk[" << i << "]"; + O << "Blk[" << I++ << "]"; - O << " " - << dwarf::FormEncodingString(Data[i].getForm()) - << " "; - Values[i]->print(O); + O << " " << dwarf::FormEncodingString(V.getForm()) << " "; + V.print(O); O << "\n"; } IndentCount -= 2; - for (unsigned j = 0, M = Children.size(); j < M; ++j) { - Children[j]->print(O, 4); - } + for (const auto &Child : children()) + Child.print(O, IndentCount + 4); if (!isBlock) O << "\n"; - IndentCount -= IncIndent; } void DIE::dump() { @@ -165,10 +191,44 @@ void DIE::dump() { } #endif -void DIEValue::anchor() { } +void DIEValue::EmitValue(const AsmPrinter *AP) const { + switch (Ty) { + case isNone: + llvm_unreachable("Expected valid DIEValue"); +#define HANDLE_DIEVALUE(T) \ + case is##T: \ + getDIE##T().EmitValue(AP, Form); \ + break; +#include "llvm/CodeGen/DIEValue.def" + } +} + +unsigned DIEValue::SizeOf(const AsmPrinter *AP) const { + switch (Ty) { + case isNone: + llvm_unreachable("Expected valid DIEValue"); +#define HANDLE_DIEVALUE(T) \ + case is##T: \ + return getDIE##T().SizeOf(AP, Form); +#include "llvm/CodeGen/DIEValue.def" + } + llvm_unreachable("Unknown DIE kind"); +} #ifndef NDEBUG -void DIEValue::dump() { +void DIEValue::print(raw_ostream &O) const { + switch (Ty) { + case isNone: + llvm_unreachable("Expected valid DIEValue"); +#define HANDLE_DIEVALUE(T) \ + case is##T: \ + getDIE##T().print(O); \ + break; +#include "llvm/CodeGen/DIEValue.def" + } +} + +void DIEValue::dump() const { print(dbgs()); } #endif @@ -179,36 +239,43 @@ void DIEValue::dump() { /// EmitValue - Emit integer of appropriate size. /// -void DIEInteger::EmitValue(AsmPrinter *Asm, unsigned Form) const { +void DIEInteger::EmitValue(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(StringRef("")); + Asm->OutStreamer->AddBlankLine(); return; case dwarf::DW_FORM_flag: // Fall thru case dwarf::DW_FORM_ref1: // Fall thru case dwarf::DW_FORM_data1: Size = 1; break; 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 + case dwarf::DW_FORM_ref_sig8: // Fall thru case dwarf::DW_FORM_data8: Size = 8; break; + case dwarf::DW_FORM_GNU_str_index: Asm->EmitULEB128(Integer); return; + case dwarf::DW_FORM_GNU_addr_index: Asm->EmitULEB128(Integer); return; case dwarf::DW_FORM_udata: Asm->EmitULEB128(Integer); return; case dwarf::DW_FORM_sdata: Asm->EmitSLEB128(Integer); return; case dwarf::DW_FORM_addr: - Size = Asm->getDataLayout().getPointerSize(0); break; + 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, 0/*addrspace*/); + Asm->OutStreamer->EmitIntValue(Integer, Size); } /// SizeOf - Determine size of integer value in bytes. /// -unsigned DIEInteger::SizeOf(AsmPrinter *AP, unsigned Form) const { +unsigned DIEInteger::SizeOf(const AsmPrinter *AP, dwarf::Form Form) const { switch (Form) { case dwarf::DW_FORM_flag_present: return 0; case dwarf::DW_FORM_flag: // Fall thru @@ -216,46 +283,80 @@ unsigned DIEInteger::SizeOf(AsmPrinter *AP, unsigned Form) const { case dwarf::DW_FORM_data1: return sizeof(int8_t); 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_udata: return MCAsmInfo::getULEB128Size(Integer); - case dwarf::DW_FORM_sdata: return MCAsmInfo::getSLEB128Size(Integer); - case dwarf::DW_FORM_addr: return AP->getDataLayout().getPointerSize(0); + 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) { +void DIEInteger::print(raw_ostream &O) const { O << "Int: " << (int64_t)Integer << " 0x"; O.write_hex(Integer); } #endif +//===----------------------------------------------------------------------===// +// DIEExpr Implementation +//===----------------------------------------------------------------------===// + +/// EmitValue - Emit expression value. +/// +void DIEExpr::EmitValue(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(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; + return AP->getDataLayout().getPointerSize(); +} + +#ifndef NDEBUG +void DIEExpr::print(raw_ostream &O) const { O << "Expr: " << *Expr; } +#endif + //===----------------------------------------------------------------------===// // DIELabel Implementation //===----------------------------------------------------------------------===// /// EmitValue - Emit label value. /// -void DIELabel::EmitValue(AsmPrinter *AP, unsigned Form) const { - AP->OutStreamer.EmitSymbolValue(Label, SizeOf(AP, Form), 0/*AddrSpace*/); +void DIELabel::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const { + AP->EmitLabelReference(Label, SizeOf(AP, Form), + Form == dwarf::DW_FORM_strp || + Form == dwarf::DW_FORM_sec_offset || + Form == dwarf::DW_FORM_ref_addr); } /// SizeOf - Determine size of label value in bytes. /// -unsigned DIELabel::SizeOf(AsmPrinter *AP, unsigned Form) const { +unsigned DIELabel::SizeOf(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; - return AP->getDataLayout().getPointerSize(0); + return AP->getDataLayout().getPointerSize(); } #ifndef NDEBUG -void DIELabel::print(raw_ostream &O) { - O << "Lbl: " << Label->getName(); -} +void DIELabel::print(raw_ostream &O) const { O << "Lbl: " << Label->getName(); } #endif //===----------------------------------------------------------------------===// @@ -264,37 +365,188 @@ void DIELabel::print(raw_ostream &O) { /// EmitValue - Emit delta value. /// -void DIEDelta::EmitValue(AsmPrinter *AP, unsigned Form) const { +void DIEDelta::EmitValue(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, unsigned Form) const { +unsigned DIEDelta::SizeOf(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; - return AP->getDataLayout().getPointerSize(0); + return AP->getDataLayout().getPointerSize(); } #ifndef NDEBUG -void DIEDelta::print(raw_ostream &O) { +void DIEDelta::print(raw_ostream &O) const { O << "Del: " << LabelHi->getName() << "-" << LabelLo->getName(); } #endif +//===----------------------------------------------------------------------===// +// DIEString Implementation +//===----------------------------------------------------------------------===// + +/// EmitValue - Emit string value. +/// +void DIEString::EmitValue(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(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: " << S.getString(); +} +#endif + //===----------------------------------------------------------------------===// // DIEEntry Implementation //===----------------------------------------------------------------------===// /// EmitValue - Emit debug information entry offset. /// -void DIEEntry::EmitValue(AsmPrinter *AP, unsigned Form) const { - AP->EmitInt32(Entry->getOffset()); +void DIEEntry::EmitValue(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(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. + 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); +} +#endif + +//===----------------------------------------------------------------------===// +// DIETypeSignature Implementation +//===----------------------------------------------------------------------===// +void DIETypeSignature::EmitValue(const AsmPrinter *Asm, + dwarf::Form Form) const { + assert(Form == dwarf::DW_FORM_ref_sig8); + Asm->OutStreamer->EmitIntValue(Unit->getTypeSignature(), 8); +} + +#ifndef NDEBUG +void DIETypeSignature::print(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) { + for (const auto &V : Values) + Size += V.SizeOf(AP); + } + + return Size; +} + +/// EmitValue - Emit location data. +/// +void DIELoc::EmitValue(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; + } + + for (const auto &V : Values) + V.EmitValue(Asm); +} + +/// SizeOf - Determine size of location data in bytes. +/// +unsigned DIELoc::SizeOf(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 DIEEntry::print(raw_ostream &O) { - O << format("Die: 0x%lx", (long)(intptr_t)Entry); +void DIELoc::print(raw_ostream &O) const { + O << "ExprLoc: "; + DIE::print(O, 5); } #endif @@ -304,11 +556,10 @@ void DIEEntry::print(raw_ostream &O) { /// ComputeSize - calculate the size of the block. /// -unsigned DIEBlock::ComputeSize(AsmPrinter *AP) { +unsigned DIEBlock::ComputeSize(const AsmPrinter *AP) const { if (!Size) { - const SmallVector &AbbrevData = Abbrev.getData(); - for (unsigned i = 0, N = Values.size(); i < N; ++i) - Size += Values[i]->SizeOf(AP, AbbrevData[i].getForm()); + for (const auto &V : Values) + Size += V.SizeOf(AP); } return Size; @@ -316,7 +567,7 @@ unsigned DIEBlock::ComputeSize(AsmPrinter *AP) { /// EmitValue - Emit block data. /// -void DIEBlock::EmitValue(AsmPrinter *Asm, unsigned Form) const { +void DIEBlock::EmitValue(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; @@ -325,26 +576,49 @@ void DIEBlock::EmitValue(AsmPrinter *Asm, unsigned Form) const { case dwarf::DW_FORM_block: Asm->EmitULEB128(Size); break; } - const SmallVector &AbbrevData = Abbrev.getData(); - for (unsigned i = 0, N = Values.size(); i < N; ++i) - Values[i]->EmitValue(Asm, AbbrevData[i].getForm()); + for (const auto &V : Values) + V.EmitValue(Asm); } /// SizeOf - Determine size of block data in bytes. /// -unsigned DIEBlock::SizeOf(AsmPrinter *AP, unsigned Form) const { +unsigned DIEBlock::SizeOf(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) { +void DIEBlock::print(raw_ostream &O) const { O << "Blk: "; DIE::print(O, 5); } #endif + +//===----------------------------------------------------------------------===// +// DIELocList Implementation +//===----------------------------------------------------------------------===// + +unsigned DIELocList::SizeOf(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::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const { + DwarfDebug *DD = AP->getDwarfDebug(); + MCSymbol *Label = DD->getDebugLocs().getList(Index).Label; + AP->emitDwarfSymbolReference(Label, /*ForceOffset*/ DD->useSplitDwarf()); +} + +#ifndef NDEBUG +void DIELocList::print(raw_ostream &O) const { O << "LocList: " << Index; } +#endif