diff options
Diffstat (limited to 'contrib/llvm/lib/CodeGen/AsmPrinter/DIE.cpp')
| -rw-r--r-- | contrib/llvm/lib/CodeGen/AsmPrinter/DIE.cpp | 242 |
1 files changed, 140 insertions, 102 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/DIE.cpp b/contrib/llvm/lib/CodeGen/AsmPrinter/DIE.cpp index 64ba56b..fa8449e 100644 --- a/contrib/llvm/lib/CodeGen/AsmPrinter/DIE.cpp +++ b/contrib/llvm/lib/CodeGen/AsmPrinter/DIE.cpp @@ -28,6 +28,7 @@ #include "llvm/Support/FormattedStream.h" #include "llvm/Support/LEB128.h" #include "llvm/Support/MD5.h" +#include "llvm/Support/raw_ostream.h" using namespace llvm; //===----------------------------------------------------------------------===// @@ -60,7 +61,7 @@ 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)); @@ -106,6 +107,13 @@ void DIEAbbrev::print(raw_ostream &O) { void DIEAbbrev::dump() { print(dbgs()); } #endif +DIEAbbrev DIE::generateAbbrev() const { + DIEAbbrev Abbrev(Tag, hasChildren()); + for (const DIEValue &V : Values) + Abbrev.AddAttribute(V.getAttribute(), V.getForm()); + return Abbrev; +} + /// Climb up the parent chain to get the unit DIE to which this DIE /// belongs. const DIE *DIE::getUnit() const { @@ -127,22 +135,19 @@ const DIE *DIE::getUnitOrNull() const { return nullptr; } -DIEValue *DIE::findAttribute(dwarf::Attribute Attribute) const { - const SmallVectorImpl<DIEValue *> &Values = getValues(); - const DIEAbbrev &Abbrevs = getAbbrev(); - +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 (size_t i = 0; i < Values.size(); ++i) - if (Abbrevs.getData()[i].getAttribute() == Attribute) - return Values[i]; - return nullptr; + for (const auto &V : values()) + if (V.getAttribute() == Attribute) + return V; + return DIEValue(); } #ifndef NDEBUG 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 @@ -152,28 +157,26 @@ void DIE::print(raw_ostream &O, unsigned IndentCount) const { << ", Size: " << Size << "\n"; O << Indent - << dwarf::TagString(Abbrev.getTag()) + << dwarf::TagString(getTag()) << " " - << dwarf::ChildrenString(Abbrev.hasChildren()) << "\n"; + << dwarf::ChildrenString(hasChildren()) << "\n"; } else { O << "Size: " << Size << "\n"; } - const SmallVectorImpl<DIEAbbrevData> &Data = Abbrev.getData(); - IndentCount += 2; - for (unsigned i = 0, N = Data.size(); i < N; ++i) { + for (unsigned i = 0, N = Values.size(); i < N; ++i) { O << Indent; if (!isBlock) - O << dwarf::AttributeString(Data[i].getAttribute()); + O << dwarf::AttributeString(Values[i].getAttribute()); else O << "Blk[" << i << "]"; O << " " - << dwarf::FormEncodingString(Data[i].getForm()) + << dwarf::FormEncodingString(Values[i].getForm()) << " "; - Values[i]->print(O); + Values[i].print(O); O << "\n"; } IndentCount -= 2; @@ -190,9 +193,43 @@ void DIE::dump() { } #endif -void DIEValue::anchor() { } +void DIEValue::EmitValue(const AsmPrinter *AP, dwarf::Form Form) 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, dwarf::Form Form) 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::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()); } @@ -204,13 +241,13 @@ void DIEValue::dump() const { /// EmitValue - Emit integer of appropriate size. /// -void DIEInteger::EmitValue(AsmPrinter *Asm, dwarf::Form 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? - Asm->OutStreamer.AddBlankLine(); + Asm->OutStreamer->AddBlankLine(); return; case dwarf::DW_FORM_flag: // Fall thru case dwarf::DW_FORM_ref1: // Fall thru @@ -218,6 +255,7 @@ 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 @@ -229,14 +267,17 @@ 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::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 @@ -245,6 +286,7 @@ 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 @@ -255,6 +297,10 @@ unsigned DIEInteger::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { 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"); } } @@ -272,13 +318,13 @@ 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::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(AsmPrinter *AP, dwarf::Form Form) const { +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; @@ -286,10 +332,7 @@ unsigned DIEExpr::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { } #ifndef NDEBUG -void DIEExpr::print(raw_ostream &O) const { - O << "Expr: "; - Expr->print(O); -} +void DIEExpr::print(raw_ostream &O) const { O << "Expr: " << *Expr; } #endif //===----------------------------------------------------------------------===// @@ -298,7 +341,7 @@ void DIEExpr::print(raw_ostream &O) const { /// EmitValue - Emit label value. /// -void DIELabel::EmitValue(AsmPrinter *AP, dwarf::Form Form) const { +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 || @@ -307,7 +350,7 @@ 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::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; @@ -315,9 +358,7 @@ unsigned DIELabel::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { } #ifndef NDEBUG -void DIELabel::print(raw_ostream &O) const { - O << "Lbl: " << Label->getName(); -} +void DIELabel::print(raw_ostream &O) const { O << "Lbl: " << Label->getName(); } #endif //===----------------------------------------------------------------------===// @@ -326,13 +367,13 @@ void DIELabel::print(raw_ostream &O) const { /// EmitValue - Emit delta value. /// -void DIEDelta::EmitValue(AsmPrinter *AP, dwarf::Form 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, dwarf::Form 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; @@ -351,20 +392,50 @@ 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::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(AsmPrinter *AP, dwarf::Form Form) const { - return Access->SizeOf(AP, Form); +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: " << Str << "\tSymbol: "; - Access->print(O); + O << "String: " << S.getString(); } #endif @@ -372,55 +443,30 @@ void DIEString::print(raw_ostream &O) const { // DIEEntry Implementation //===----------------------------------------------------------------------===// -/// Emit something like ".long Hi+Offset-Lo" where the size in bytes of the -/// directive is specified by Size and Hi/Lo specify the labels. -static void emitLabelOffsetDifference(MCStreamer &Streamer, const MCSymbol *Hi, - uint64_t Offset, const MCSymbol *Lo, - unsigned Size) { - MCContext &Context = Streamer.getContext(); - - // Emit Hi+Offset - Lo - // Get the Hi+Offset expression. - const MCExpr *Plus = - MCBinaryExpr::CreateAdd(MCSymbolRefExpr::Create(Hi, Context), - MCConstantExpr::Create(Offset, Context), Context); - - // Get the Hi+Offset-Lo expression. - const MCExpr *Diff = MCBinaryExpr::CreateSub( - Plus, MCSymbolRefExpr::Create(Lo, Context), Context); - - // Otherwise, emit with .set (aka assignment). - MCSymbol *SetLabel = Context.CreateTempSymbol(); - Streamer.EmitAssignment(SetLabel, Diff); - Streamer.EmitSymbolValue(SetLabel, Size); -} - /// EmitValue - Emit debug information entry offset. /// -void DIEEntry::EmitValue(AsmPrinter *AP, dwarf::Form Form) const { +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(); + 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()); + 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 - emitLabelOffsetDifference(AP->OutStreamer, CU->getSectionSym(), Addr, - CU->getSectionSym(), - DIEEntry::getRefAddrSize(AP)); + AP->OutStreamer->EmitIntValue(Addr, DIEEntry::getRefAddrSize(AP)); } else - AP->EmitInt32(Entry.getOffset()); + 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 @@ -441,17 +487,16 @@ void DIEEntry::print(raw_ostream &O) const { //===----------------------------------------------------------------------===// // DIETypeSignature Implementation //===----------------------------------------------------------------------===// -void DIETypeSignature::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const { +void DIETypeSignature::EmitValue(const AsmPrinter *Asm, + dwarf::Form Form) const { assert(Form == dwarf::DW_FORM_ref_sig8); - Asm->OutStreamer.EmitIntValue(Unit.getTypeSignature(), 8); + Asm->OutStreamer->EmitIntValue(Unit->getTypeSignature(), 8); } #ifndef NDEBUG void DIETypeSignature::print(raw_ostream &O) const { - O << format("Type Unit: 0x%lx", Unit.getTypeSignature()); + O << format("Type Unit: 0x%lx", Unit->getTypeSignature()); } - -void DIETypeSignature::dump() const { print(dbgs()); } #endif //===----------------------------------------------------------------------===// @@ -460,11 +505,10 @@ void DIETypeSignature::dump() const { print(dbgs()); } /// ComputeSize - calculate the size of the location expression. /// -unsigned DIELoc::ComputeSize(AsmPrinter *AP) const { +unsigned DIELoc::ComputeSize(const AsmPrinter *AP) const { if (!Size) { - const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData(); for (unsigned i = 0, N = Values.size(); i < N; ++i) - Size += Values[i]->SizeOf(AP, AbbrevData[i].getForm()); + Size += Values[i].SizeOf(AP, Values[i].getForm()); } return Size; @@ -472,7 +516,7 @@ unsigned DIELoc::ComputeSize(AsmPrinter *AP) const { /// EmitValue - Emit location data. /// -void DIELoc::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const { +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; @@ -483,14 +527,13 @@ void DIELoc::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const { Asm->EmitULEB128(Size); break; } - const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData(); for (unsigned i = 0, N = Values.size(); i < N; ++i) - Values[i]->EmitValue(Asm, AbbrevData[i].getForm()); + Values[i].EmitValue(Asm, Values[i].getForm()); } /// SizeOf - Determine size of location data in bytes. /// -unsigned DIELoc::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { +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); @@ -515,11 +558,10 @@ void DIELoc::print(raw_ostream &O) const { /// ComputeSize - calculate the size of the block. /// -unsigned DIEBlock::ComputeSize(AsmPrinter *AP) const { +unsigned DIEBlock::ComputeSize(const AsmPrinter *AP) const { if (!Size) { - const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData(); for (unsigned i = 0, N = Values.size(); i < N; ++i) - Size += Values[i]->SizeOf(AP, AbbrevData[i].getForm()); + Size += Values[i].SizeOf(AP, Values[i].getForm()); } return Size; @@ -527,7 +569,7 @@ unsigned DIEBlock::ComputeSize(AsmPrinter *AP) const { /// EmitValue - Emit block data. /// -void DIEBlock::EmitValue(AsmPrinter *Asm, dwarf::Form 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; @@ -536,14 +578,13 @@ void DIEBlock::EmitValue(AsmPrinter *Asm, dwarf::Form Form) const { case dwarf::DW_FORM_block: Asm->EmitULEB128(Size); break; } - const SmallVectorImpl<DIEAbbrevData> &AbbrevData = Abbrev.getData(); for (unsigned i = 0, N = Values.size(); i < N; ++i) - Values[i]->EmitValue(Asm, AbbrevData[i].getForm()); + Values[i].EmitValue(Asm, Values[i].getForm()); } /// SizeOf - Determine size of block data in bytes. /// -unsigned DIEBlock::SizeOf(AsmPrinter *AP, dwarf::Form 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); @@ -564,7 +605,7 @@ void DIEBlock::print(raw_ostream &O) const { // DIELocList Implementation //===----------------------------------------------------------------------===// -unsigned DIELocList::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { +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) @@ -574,19 +615,16 @@ unsigned DIELocList::SizeOf(AsmPrinter *AP, dwarf::Form Form) const { /// EmitValue - Emit label value. /// -void DIELocList::EmitValue(AsmPrinter *AP, dwarf::Form Form) const { +void DIELocList::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const { DwarfDebug *DD = AP->getDwarfDebug(); - MCSymbol *Label = DD->getDebugLocEntries()[Index].Label; + MCSymbol *Label = DD->getDebugLocs().getList(Index).Label; if (AP->MAI->doesDwarfUseRelocationsAcrossSections() && !DD->useSplitDwarf()) - AP->EmitSectionOffset(Label, DD->getDebugLocSym()); + AP->emitSectionOffset(Label); else - AP->EmitLabelDifference(Label, DD->getDebugLocSym(), 4); + AP->EmitLabelDifference(Label, Label->getSection().getBeginSymbol(), 4); } #ifndef NDEBUG -void DIELocList::print(raw_ostream &O) const { - O << "LocList: " << Index; - -} +void DIELocList::print(raw_ostream &O) const { O << "LocList: " << Index; } #endif |
