X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FMC%2FMCDwarf.cpp;h=95cfe24eaae6f8f647a3564a6d0dcc4d9fe53377;hb=12af22e8cc217827cf4f118b0f5e4ebbda9925ae;hp=eab4d88f253bcb9fbe8655696c3ae8e7bd2f25be;hpb=255907042245b77779e3e38c5ce66901866cabe5;p=oota-llvm.git diff --git a/lib/MC/MCDwarf.cpp b/lib/MC/MCDwarf.cpp index eab4d88f253..95cfe24eaae 100644 --- a/lib/MC/MCDwarf.cpp +++ b/lib/MC/MCDwarf.cpp @@ -247,6 +247,22 @@ std::pair MCDwarfLineTableHeader::Emit(MCStreamer *MCOS) return Emit(MCOS, StandardOpcodeLengths); } +static const MCExpr *forceExpAbs(MCStreamer &OS, const MCExpr* Expr) { + MCContext &Context = OS.getContext(); + assert(!isa(Expr)); + if (Context.getAsmInfo()->hasAggressiveSymbolFolding()) + return Expr; + + MCSymbol *ABS = Context.CreateTempSymbol(); + OS.EmitAssignment(ABS, Expr); + return MCSymbolRefExpr::Create(ABS, Context); +} + +static void emitAbsValue(MCStreamer &OS, const MCExpr *Value, unsigned Size) { + const MCExpr *ABS = forceExpAbs(OS, Value); + OS.EmitValue(ABS, Size); +} + std::pair MCDwarfLineTableHeader::Emit(MCStreamer *MCOS, ArrayRef StandardOpcodeLengths) const { @@ -265,8 +281,8 @@ MCDwarfLineTableHeader::Emit(MCStreamer *MCOS, // The first 4 bytes is the total length of the information for this // compilation unit (not including these 4 bytes for the length). - MCOS->EmitAbsValue(MakeStartMinusEndExpr(*MCOS, *LineStartSym, *LineEndSym,4), - 4); + emitAbsValue(*MCOS, + MakeStartMinusEndExpr(*MCOS, *LineStartSym, *LineEndSym, 4), 4); // Next 2 bytes is the Version, which is Dwarf 2. MCOS->EmitIntValue(2, 2); @@ -278,8 +294,9 @@ MCDwarfLineTableHeader::Emit(MCStreamer *MCOS, // section to the end of the prologue. Not including the 4 bytes for the // total length, the 2 bytes for the version, and these 4 bytes for the // length of the prologue. - MCOS->EmitAbsValue(MakeStartMinusEndExpr(*MCOS, *LineStartSym, *ProEndSym, - (4 + 2 + 4)), 4); + emitAbsValue( + *MCOS, + MakeStartMinusEndExpr(*MCOS, *LineStartSym, *ProEndSym, (4 + 2 + 4)), 4); // Parameters of the state machine, are next. MCOS->EmitIntValue(context.getAsmInfo()->getMinInstAlignment(), 1); @@ -420,7 +437,8 @@ unsigned MCDwarfLineTableHeader::getFile(StringRef &Directory, void MCDwarfLineAddr::Emit(MCStreamer *MCOS, int64_t LineDelta, uint64_t AddrDelta) { MCContext &Context = MCOS->getContext(); - small_string_ostream<256> OS; + SmallString<256> Tmp; + raw_svector_ostream OS(Tmp); MCDwarfLineAddr::Encode(Context, LineDelta, AddrDelta, OS); MCOS->EmitBytes(OS.str()); } @@ -595,7 +613,8 @@ static void EmitGenDwarfAranges(MCStreamer *MCOS, // The 4 byte offset to the compile unit in the .debug_info from the start // of the .debug_info. if (InfoSectionSymbol) - MCOS->EmitSymbolValue(InfoSectionSymbol, 4); + MCOS->EmitSymbolValue(InfoSectionSymbol, 4, + asmInfo->needsDwarfSectionOffsetDirective()); else MCOS->EmitIntValue(0, 4); // The 1 byte size of an address. @@ -619,7 +638,7 @@ static void EmitGenDwarfAranges(MCStreamer *MCOS, const MCExpr *Size = MakeStartMinusEndExpr(*MCOS, *StartSymbol, *EndSymbol, 0); MCOS->EmitValue(Addr, AddrSize); - MCOS->EmitAbsValue(Size, AddrSize); + emitAbsValue(*MCOS, Size, AddrSize); } // And finally the pair of terminating zeros. @@ -649,18 +668,19 @@ static void EmitGenDwarfInfo(MCStreamer *MCOS, // The 4 byte total length of the information for this compilation unit, not // including these 4 bytes. const MCExpr *Length = MakeStartMinusEndExpr(*MCOS, *InfoStart, *InfoEnd, 4); - MCOS->EmitAbsValue(Length, 4); + emitAbsValue(*MCOS, Length, 4); // The 2 byte DWARF version. MCOS->EmitIntValue(context.getDwarfVersion(), 2); + const MCAsmInfo &AsmInfo = *context.getAsmInfo(); // The 4 byte offset to the debug abbrevs from the start of the .debug_abbrev, // it is at the start of that section so this is zero. - if (AbbrevSectionSymbol) { - MCOS->EmitSymbolValue(AbbrevSectionSymbol, 4); - } else { + if (AbbrevSectionSymbol == nullptr) MCOS->EmitIntValue(0, 4); - } + else + MCOS->EmitSymbolValue(AbbrevSectionSymbol, 4, + AsmInfo.needsDwarfSectionOffsetDirective()); const MCAsmInfo *asmInfo = context.getAsmInfo(); int AddrSize = asmInfo->getPointerSize(); @@ -674,11 +694,11 @@ static void EmitGenDwarfInfo(MCStreamer *MCOS, // DW_AT_stmt_list, a 4 byte offset from the start of the .debug_line section, // which is at the start of that section so this is zero. - if (LineSectionSymbol) { - MCOS->EmitSymbolValue(LineSectionSymbol, 4); - } else { + if (LineSectionSymbol) + MCOS->EmitSymbolValue(LineSectionSymbol, 4, + AsmInfo.needsDwarfSectionOffsetDirective()); + else MCOS->EmitIntValue(0, 4); - } if (RangesSectionSymbol) { // There are multiple sections containing code, so we must use the @@ -739,14 +759,10 @@ static void EmitGenDwarfInfo(MCStreamer *MCOS, // AT_producer, the version of the assembler tool. StringRef DwarfDebugProducer = context.getDwarfDebugProducer(); - if (!DwarfDebugProducer.empty()){ + if (!DwarfDebugProducer.empty()) MCOS->EmitBytes(DwarfDebugProducer); - } - else { - MCOS->EmitBytes(StringRef("llvm-mc (based on LLVM ")); - MCOS->EmitBytes(StringRef(PACKAGE_VERSION)); - MCOS->EmitBytes(StringRef(")")); - } + else + MCOS->EmitBytes(StringRef("llvm-mc (based on LLVM " PACKAGE_VERSION ")")); MCOS->EmitIntValue(0, 1); // NULL byte to terminate the string. // AT_language, a 4 byte value. We use DW_LANG_Mips_Assembler as the dwarf2 @@ -823,7 +839,7 @@ static void EmitGenDwarfRanges(MCStreamer *MCOS) { const MCExpr *SectionSize = MakeStartMinusEndExpr(*MCOS, *StartSymbol, *EndSymbol, 0); MCOS->EmitIntValue(0, AddrSize); - MCOS->EmitAbsValue(SectionSize, AddrSize); + emitAbsValue(*MCOS, SectionSize, AddrSize); } // Emit end of list entry @@ -927,7 +943,7 @@ void MCGenDwarfLabelEntry::Make(MCSymbol *Symbol, MCStreamer *MCOS, // Finding the line number is the expensive part which is why we just don't // pass it in as for some symbols we won't create a dwarf label. - int CurBuffer = SrcMgr.FindBufferContainingLoc(Loc); + unsigned CurBuffer = SrcMgr.FindBufferContainingLoc(Loc); unsigned LineNumber = SrcMgr.FindLineNumber(Loc, CurBuffer); // We create a temporary symbol for use for the AT_high_pc and AT_low_pc @@ -973,18 +989,16 @@ static unsigned getSizeForEncoding(MCStreamer &streamer, } } -static void EmitFDESymbol(MCStreamer &streamer, const MCSymbol &symbol, - unsigned symbolEncoding, bool isEH, - const char *comment = nullptr) { +static void emitFDESymbol(MCObjectStreamer &streamer, const MCSymbol &symbol, + unsigned symbolEncoding, bool isEH) { MCContext &context = streamer.getContext(); const MCAsmInfo *asmInfo = context.getAsmInfo(); const MCExpr *v = asmInfo->getExprForFDESymbol(&symbol, symbolEncoding, streamer); unsigned size = getSizeForEncoding(streamer, symbolEncoding); - if (streamer.isVerboseAsm() && comment) streamer.AddComment(comment); if (asmInfo->doDwarfFDESymbolsUseAbsDiff() && isEH) - streamer.EmitAbsValue(v, size); + emitAbsValue(streamer, v, size); else streamer.EmitValue(v, size); } @@ -1003,17 +1017,16 @@ static void EmitPersonality(MCStreamer &streamer, const MCSymbol &symbol, namespace { class FrameEmitterImpl { int CFAOffset; - int CIENum; bool IsEH; const MCSymbol *SectionStart; public: FrameEmitterImpl(bool isEH) - : CFAOffset(0), CIENum(0), IsEH(isEH), SectionStart(nullptr) {} + : CFAOffset(0), IsEH(isEH), SectionStart(nullptr) {} void setSectionStart(const MCSymbol *Label) { SectionStart = Label; } - /// EmitCompactUnwind - Emit the unwind information in a compact way. - void EmitCompactUnwind(MCStreamer &streamer, + /// Emit the unwind information in a compact way. + void EmitCompactUnwind(MCObjectStreamer &streamer, const MCDwarfFrameInfo &frame); const MCSymbol &EmitCIE(MCObjectStreamer &streamer, @@ -1035,65 +1048,18 @@ namespace { } // end anonymous namespace -static void EmitEncodingByte(MCStreamer &Streamer, unsigned Encoding, - StringRef Prefix) { - if (Streamer.isVerboseAsm()) { - const char *EncStr; - switch (Encoding) { - default: EncStr = ""; break; - case dwarf::DW_EH_PE_absptr: EncStr = "absptr"; break; - case dwarf::DW_EH_PE_omit: EncStr = "omit"; break; - case dwarf::DW_EH_PE_pcrel: EncStr = "pcrel"; break; - case dwarf::DW_EH_PE_udata4: EncStr = "udata4"; break; - case dwarf::DW_EH_PE_udata8: EncStr = "udata8"; break; - case dwarf::DW_EH_PE_sdata4: EncStr = "sdata4"; break; - case dwarf::DW_EH_PE_sdata8: EncStr = "sdata8"; break; - case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata4: - EncStr = "pcrel udata4"; - break; - case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4: - EncStr = "pcrel sdata4"; - break; - case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8: - EncStr = "pcrel udata8"; - break; - case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata8: - EncStr = "screl sdata8"; - break; - case dwarf::DW_EH_PE_indirect |dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_udata4: - EncStr = "indirect pcrel udata4"; - break; - case dwarf::DW_EH_PE_indirect |dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_sdata4: - EncStr = "indirect pcrel sdata4"; - break; - case dwarf::DW_EH_PE_indirect |dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_udata8: - EncStr = "indirect pcrel udata8"; - break; - case dwarf::DW_EH_PE_indirect |dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_sdata8: - EncStr = "indirect pcrel sdata8"; - break; - } - - Streamer.AddComment(Twine(Prefix) + " = " + EncStr); - } - +static void emitEncodingByte(MCObjectStreamer &Streamer, unsigned Encoding) { Streamer.EmitIntValue(Encoding, 1); } void FrameEmitterImpl::EmitCFIInstruction(MCObjectStreamer &Streamer, const MCCFIInstruction &Instr) { int dataAlignmentFactor = getDataAlignmentFactor(Streamer); - bool VerboseAsm = Streamer.isVerboseAsm(); switch (Instr.getOperation()) { case MCCFIInstruction::OpRegister: { unsigned Reg1 = Instr.getRegister(); unsigned Reg2 = Instr.getRegister2(); - if (VerboseAsm) { - Streamer.AddComment("DW_CFA_register"); - Streamer.AddComment(Twine("Reg1 ") + Twine(Reg1)); - Streamer.AddComment(Twine("Reg2 ") + Twine(Reg2)); - } Streamer.EmitIntValue(dwarf::DW_CFA_register, 1); Streamer.EmitULEB128IntValue(Reg1); Streamer.EmitULEB128IntValue(Reg2); @@ -1105,10 +1071,6 @@ void FrameEmitterImpl::EmitCFIInstruction(MCObjectStreamer &Streamer, } case MCCFIInstruction::OpUndefined: { unsigned Reg = Instr.getRegister(); - if (VerboseAsm) { - Streamer.AddComment("DW_CFA_undefined"); - Streamer.AddComment(Twine("Reg ") + Twine(Reg)); - } Streamer.EmitIntValue(dwarf::DW_CFA_undefined, 1); Streamer.EmitULEB128IntValue(Reg); return; @@ -1118,8 +1080,6 @@ void FrameEmitterImpl::EmitCFIInstruction(MCObjectStreamer &Streamer, const bool IsRelative = Instr.getOperation() == MCCFIInstruction::OpAdjustCfaOffset; - if (VerboseAsm) - Streamer.AddComment("DW_CFA_def_cfa_offset"); Streamer.EmitIntValue(dwarf::DW_CFA_def_cfa_offset, 1); if (IsRelative) @@ -1127,37 +1087,21 @@ void FrameEmitterImpl::EmitCFIInstruction(MCObjectStreamer &Streamer, else CFAOffset = -Instr.getOffset(); - if (VerboseAsm) - Streamer.AddComment(Twine("Offset " + Twine(CFAOffset))); Streamer.EmitULEB128IntValue(CFAOffset); return; } case MCCFIInstruction::OpDefCfa: { - if (VerboseAsm) - Streamer.AddComment("DW_CFA_def_cfa"); Streamer.EmitIntValue(dwarf::DW_CFA_def_cfa, 1); - - if (VerboseAsm) - Streamer.AddComment(Twine("Reg ") + Twine(Instr.getRegister())); Streamer.EmitULEB128IntValue(Instr.getRegister()); - CFAOffset = -Instr.getOffset(); - - if (VerboseAsm) - Streamer.AddComment(Twine("Offset " + Twine(CFAOffset))); Streamer.EmitULEB128IntValue(CFAOffset); return; } case MCCFIInstruction::OpDefCfaRegister: { - if (VerboseAsm) - Streamer.AddComment("DW_CFA_def_cfa_register"); Streamer.EmitIntValue(dwarf::DW_CFA_def_cfa_register, 1); - - if (VerboseAsm) - Streamer.AddComment(Twine("Reg ") + Twine(Instr.getRegister())); Streamer.EmitULEB128IntValue(Instr.getRegister()); return; @@ -1175,63 +1119,44 @@ void FrameEmitterImpl::EmitCFIInstruction(MCObjectStreamer &Streamer, Offset = Offset / dataAlignmentFactor; if (Offset < 0) { - if (VerboseAsm) Streamer.AddComment("DW_CFA_offset_extended_sf"); Streamer.EmitIntValue(dwarf::DW_CFA_offset_extended_sf, 1); - if (VerboseAsm) Streamer.AddComment(Twine("Reg ") + Twine(Reg)); Streamer.EmitULEB128IntValue(Reg); - if (VerboseAsm) Streamer.AddComment(Twine("Offset ") + Twine(Offset)); Streamer.EmitSLEB128IntValue(Offset); } else if (Reg < 64) { - if (VerboseAsm) Streamer.AddComment(Twine("DW_CFA_offset + Reg(") + - Twine(Reg) + ")"); Streamer.EmitIntValue(dwarf::DW_CFA_offset + Reg, 1); - if (VerboseAsm) Streamer.AddComment(Twine("Offset ") + Twine(Offset)); Streamer.EmitULEB128IntValue(Offset); } else { - if (VerboseAsm) Streamer.AddComment("DW_CFA_offset_extended"); Streamer.EmitIntValue(dwarf::DW_CFA_offset_extended, 1); - if (VerboseAsm) Streamer.AddComment(Twine("Reg ") + Twine(Reg)); Streamer.EmitULEB128IntValue(Reg); - if (VerboseAsm) Streamer.AddComment(Twine("Offset ") + Twine(Offset)); Streamer.EmitULEB128IntValue(Offset); } return; } case MCCFIInstruction::OpRememberState: - if (VerboseAsm) Streamer.AddComment("DW_CFA_remember_state"); Streamer.EmitIntValue(dwarf::DW_CFA_remember_state, 1); return; case MCCFIInstruction::OpRestoreState: - if (VerboseAsm) Streamer.AddComment("DW_CFA_restore_state"); Streamer.EmitIntValue(dwarf::DW_CFA_restore_state, 1); return; case MCCFIInstruction::OpSameValue: { unsigned Reg = Instr.getRegister(); - if (VerboseAsm) Streamer.AddComment("DW_CFA_same_value"); Streamer.EmitIntValue(dwarf::DW_CFA_same_value, 1); - if (VerboseAsm) Streamer.AddComment(Twine("Reg ") + Twine(Reg)); Streamer.EmitULEB128IntValue(Reg); return; } case MCCFIInstruction::OpRestore: { unsigned Reg = Instr.getRegister(); - if (VerboseAsm) { - Streamer.AddComment("DW_CFA_restore"); - Streamer.AddComment(Twine("Reg ") + Twine(Reg)); - } Streamer.EmitIntValue(dwarf::DW_CFA_restore | Reg, 1); return; } case MCCFIInstruction::OpEscape: - if (VerboseAsm) Streamer.AddComment("Escape bytes"); Streamer.EmitBytes(Instr.getValues()); return; } llvm_unreachable("Unhandled case in switch"); } -/// EmitFrameMoves - Emit frame instructions to describe the layout of the -/// frame. +/// Emit frame instructions to describe the layout of the frame. void FrameEmitterImpl::EmitCFIInstructions(MCObjectStreamer &streamer, ArrayRef Instrs, MCSymbol *BaseLabel) { @@ -1245,7 +1170,6 @@ void FrameEmitterImpl::EmitCFIInstructions(MCObjectStreamer &streamer, if (BaseLabel && Label) { MCSymbol *ThisSym = Label; if (ThisSym != BaseLabel) { - if (streamer.isVerboseAsm()) streamer.AddComment("DW_CFA_advance_loc4"); streamer.EmitDwarfAdvanceFrameAddr(BaseLabel, ThisSym); BaseLabel = ThisSym; } @@ -1255,12 +1179,11 @@ void FrameEmitterImpl::EmitCFIInstructions(MCObjectStreamer &streamer, } } -/// EmitCompactUnwind - Emit the unwind information in a compact way. -void FrameEmitterImpl::EmitCompactUnwind(MCStreamer &Streamer, +/// Emit the unwind information in a compact way. +void FrameEmitterImpl::EmitCompactUnwind(MCObjectStreamer &Streamer, const MCDwarfFrameInfo &Frame) { MCContext &Context = Streamer.getContext(); const MCObjectFileInfo *MOFI = Context.getObjectFileInfo(); - bool VerboseAsm = Streamer.isVerboseAsm(); // range-start range-length compact-unwind-enc personality-func lsda // _foo LfooEnd-_foo 0x00000023 0 0 @@ -1295,24 +1218,19 @@ void FrameEmitterImpl::EmitCompactUnwind(MCStreamer &Streamer, // Range Start unsigned FDEEncoding = MOFI->getFDEEncoding(); unsigned Size = getSizeForEncoding(Streamer, FDEEncoding); - if (VerboseAsm) Streamer.AddComment("Range Start"); Streamer.EmitSymbolValue(Frame.Begin, Size); // Range Length const MCExpr *Range = MakeStartMinusEndExpr(Streamer, *Frame.Begin, *Frame.End, 0); - if (VerboseAsm) Streamer.AddComment("Range Length"); - Streamer.EmitAbsValue(Range, 4); + emitAbsValue(Streamer, Range, 4); // Compact Encoding Size = getSizeForEncoding(Streamer, dwarf::DW_EH_PE_udata4); - if (VerboseAsm) Streamer.AddComment("Compact Unwind Encoding: 0x" + - Twine::utohexstr(Encoding)); Streamer.EmitIntValue(Encoding, Size); // Personality Function Size = getSizeForEncoding(Streamer, dwarf::DW_EH_PE_absptr); - if (VerboseAsm) Streamer.AddComment("Personality Function"); if (!DwarfEHFrameOnly && Frame.Personality) Streamer.EmitSymbolValue(Frame.Personality, Size); else @@ -1320,7 +1238,6 @@ void FrameEmitterImpl::EmitCompactUnwind(MCStreamer &Streamer, // LSDA Size = getSizeForEncoding(Streamer, Frame.LsdaEncoding); - if (VerboseAsm) Streamer.AddComment("LSDA"); if (!DwarfEHFrameOnly && Frame.Lsda) Streamer.EmitSymbolValue(Frame.Lsda, Size); else @@ -1337,27 +1254,22 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCObjectStreamer &streamer, MCContext &context = streamer.getContext(); const MCRegisterInfo *MRI = context.getRegisterInfo(); const MCObjectFileInfo *MOFI = context.getObjectFileInfo(); - bool verboseAsm = streamer.isVerboseAsm(); MCSymbol *sectionStart = context.CreateTempSymbol(); streamer.EmitLabel(sectionStart); - CIENum++; MCSymbol *sectionEnd = context.CreateTempSymbol(); // Length const MCExpr *Length = MakeStartMinusEndExpr(streamer, *sectionStart, *sectionEnd, 4); - if (verboseAsm) streamer.AddComment("CIE Length"); - streamer.EmitAbsValue(Length, 4); + emitAbsValue(streamer, Length, 4); // CIE ID unsigned CIE_ID = IsEH ? 0 : -1; - if (verboseAsm) streamer.AddComment("CIE ID Tag"); streamer.EmitIntValue(CIE_ID, 4); // Version - if (verboseAsm) streamer.AddComment("DW_CIE_VERSION"); // For DWARF2, we use CIE version 1 // For DWARF3+, we use CIE version 3 uint8_t CIEVersion = context.getDwarfVersion() <= 2 ? 1 : 3; @@ -1366,7 +1278,6 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCObjectStreamer &streamer, // Augmentation String SmallString<8> Augmentation; if (IsEH) { - if (verboseAsm) streamer.AddComment("CIE Augmentation"); Augmentation += "z"; if (personality) Augmentation += "P"; @@ -1380,15 +1291,12 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCObjectStreamer &streamer, streamer.EmitIntValue(0, 1); // Code Alignment Factor - if (verboseAsm) streamer.AddComment("CIE Code Alignment Factor"); streamer.EmitULEB128IntValue(context.getAsmInfo()->getMinInstAlignment()); // Data Alignment Factor - if (verboseAsm) streamer.AddComment("CIE Data Alignment Factor"); streamer.EmitSLEB128IntValue(getDataAlignmentFactor(streamer)); // Return Address Register - if (verboseAsm) streamer.AddComment("CIE Return Address Column"); if (CIEVersion == 1) { assert(MRI->getRARegister() <= 255 && "DWARF 2 encodes return_address_register in one byte"); @@ -1413,24 +1321,21 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCObjectStreamer &streamer, // Encoding of the FDE pointers augmentationLength += 1; - if (verboseAsm) streamer.AddComment("Augmentation Size"); streamer.EmitULEB128IntValue(augmentationLength); // Augmentation Data (optional) if (personality) { // Personality Encoding - EmitEncodingByte(streamer, personalityEncoding, - "Personality Encoding"); + emitEncodingByte(streamer, personalityEncoding); // Personality - if (verboseAsm) streamer.AddComment("Personality"); EmitPersonality(streamer, *personality, personalityEncoding); } if (lsda) - EmitEncodingByte(streamer, lsdaEncoding, "LSDA Encoding"); + emitEncodingByte(streamer, lsdaEncoding); // Encoding of the FDE pointers - EmitEncodingByte(streamer, MOFI->getFDEEncoding(), "FDE Encoding"); + emitEncodingByte(streamer, MOFI->getFDEEncoding()); } // Initial Instructions @@ -1456,12 +1361,10 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCObjectStreamer &streamer, MCSymbol *fdeStart = context.CreateTempSymbol(); MCSymbol *fdeEnd = context.CreateTempSymbol(); const MCObjectFileInfo *MOFI = context.getObjectFileInfo(); - bool verboseAsm = streamer.isVerboseAsm(); // Length const MCExpr *Length = MakeStartMinusEndExpr(streamer, *fdeStart, *fdeEnd, 0); - if (verboseAsm) streamer.AddComment("FDE Length"); - streamer.EmitAbsValue(Length, 4); + emitAbsValue(streamer, Length, 4); streamer.EmitLabel(fdeStart); @@ -1470,12 +1373,11 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCObjectStreamer &streamer, if (IsEH) { const MCExpr *offset = MakeStartMinusEndExpr(streamer, cieStart, *fdeStart, 0); - if (verboseAsm) streamer.AddComment("FDE CIE Offset"); - streamer.EmitAbsValue(offset, 4); + emitAbsValue(streamer, offset, 4); } else if (!asmInfo->doesDwarfUseRelocationsAcrossSections()) { const MCExpr *offset = MakeStartMinusEndExpr(streamer, *SectionStart, cieStart, 0); - streamer.EmitAbsValue(offset, 4); + emitAbsValue(streamer, offset, 4); } else { streamer.EmitSymbolValue(&cieStart, 4); } @@ -1484,13 +1386,12 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCObjectStreamer &streamer, unsigned PCEncoding = IsEH ? MOFI->getFDEEncoding() : (unsigned)dwarf::DW_EH_PE_absptr; unsigned PCSize = getSizeForEncoding(streamer, PCEncoding); - EmitFDESymbol(streamer, *frame.Begin, PCEncoding, IsEH, "FDE initial location"); + emitFDESymbol(streamer, *frame.Begin, PCEncoding, IsEH); // PC Range const MCExpr *Range = MakeStartMinusEndExpr(streamer, *frame.Begin, *frame.End, 0); - if (verboseAsm) streamer.AddComment("FDE address range"); - streamer.EmitAbsValue(Range, PCSize); + emitAbsValue(streamer, Range, PCSize); if (IsEH) { // Augmentation Data Length @@ -1499,13 +1400,11 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCObjectStreamer &streamer, if (frame.Lsda) augmentationLength += getSizeForEncoding(streamer, frame.LsdaEncoding); - if (verboseAsm) streamer.AddComment("Augmentation size"); streamer.EmitULEB128IntValue(augmentationLength); // Augmentation Data if (frame.Lsda) - EmitFDESymbol(streamer, *frame.Lsda, frame.LsdaEncoding, true, - "Language Specific Data Area"); + emitFDESymbol(streamer, *frame.Lsda, frame.LsdaEncoding, true); } // Call Frame Instructions @@ -1573,7 +1472,7 @@ void MCDwarfFrameEmitter::Emit(MCObjectStreamer &Streamer, MCAsmBackend *MAB, MCContext &Context = Streamer.getContext(); const MCObjectFileInfo *MOFI = Context.getObjectFileInfo(); FrameEmitterImpl Emitter(IsEH); - ArrayRef FrameArray = Streamer.getFrameInfos(); + ArrayRef FrameArray = Streamer.getDwarfFrameInfos(); // Emit the compact unwind info if available. bool NeedsEHFrameSection = !MOFI->getSupportsCompactUnwindWithoutEHFrame(); @@ -1646,7 +1545,8 @@ void MCDwarfFrameEmitter::Emit(MCObjectStreamer &Streamer, MCAsmBackend *MAB, void MCDwarfFrameEmitter::EmitAdvanceLoc(MCObjectStreamer &Streamer, uint64_t AddrDelta) { MCContext &Context = Streamer.getContext(); - small_string_ostream<256> OS; + SmallString<256> Tmp; + raw_svector_ostream OS(Tmp); MCDwarfFrameEmitter::EncodeAdvanceLoc(Context, AddrDelta, OS); Streamer.EmitBytes(OS.str()); }