X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;ds=sidebyside;f=lib%2FMC%2FMCAsmStreamer.cpp;h=ae9936ce6fc283fa014193be927e339cab9a5929;hb=6e032942cf58d1c41f88609a1cec74eb74940ecd;hp=6c240cf4148a77bf1bc5d1713104f62c89429938;hpb=afd1cc25786f68ca56a63d29ea2bd297990e9f81;p=oota-llvm.git diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp index 6c240cf4148..ae9936ce6fc 100644 --- a/lib/MC/MCAsmStreamer.cpp +++ b/lib/MC/MCAsmStreamer.cpp @@ -12,6 +12,7 @@ #include "llvm/MC/MCCodeEmitter.h" #include "llvm/MC/MCContext.h" #include "llvm/MC/MCExpr.h" +#include "llvm/MC/MCFixupKindInfo.h" #include "llvm/MC/MCInst.h" #include "llvm/MC/MCInstPrinter.h" #include "llvm/MC/MCSectionMachO.h" @@ -23,6 +24,10 @@ #include "llvm/Support/MathExtras.h" #include "llvm/Support/Format.h" #include "llvm/Support/FormattedStream.h" +#include "llvm/Target/TargetAsmBackend.h" +#include "llvm/Target/TargetAsmInfo.h" +#include "llvm/Target/TargetLoweringObjectFile.h" +#include using namespace llvm; namespace { @@ -32,29 +37,40 @@ class MCAsmStreamer : public MCStreamer { const MCAsmInfo &MAI; OwningPtr InstPrinter; OwningPtr Emitter; + OwningPtr AsmBackend; SmallString<128> CommentToEmit; raw_svector_ostream CommentStream; - unsigned IsLittleEndian : 1; unsigned IsVerboseAsm : 1; unsigned ShowInst : 1; + unsigned UseLoc : 1; + unsigned UseCFI : 1; + + enum EHSymbolFlags { EHGlobal = 1, + EHWeakDefinition = 1 << 1, + EHPrivateExtern = 1 << 2 }; + DenseMap FlagMap; + + bool needsSet(const MCExpr *Value); + + void EmitRegisterName(int64_t Register); public: MCAsmStreamer(MCContext &Context, formatted_raw_ostream &os, - bool isLittleEndian, bool isVerboseAsm, MCInstPrinter *printer, - MCCodeEmitter *emitter, bool showInst) + bool isVerboseAsm, bool useLoc, bool useCFI, + MCInstPrinter *printer, MCCodeEmitter *emitter, + TargetAsmBackend *asmbackend, + bool showInst) : MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()), - InstPrinter(printer), Emitter(emitter), CommentStream(CommentToEmit), - IsLittleEndian(isLittleEndian), IsVerboseAsm(isVerboseAsm), - ShowInst(showInst) { + InstPrinter(printer), Emitter(emitter), AsmBackend(asmbackend), + CommentStream(CommentToEmit), IsVerboseAsm(isVerboseAsm), + ShowInst(showInst), UseLoc(useLoc), UseCFI(useCFI) { if (InstPrinter && IsVerboseAsm) InstPrinter->setCommentStream(CommentStream); } ~MCAsmStreamer() {} - bool isLittleEndian() const { return IsLittleEndian; } - inline void EmitEOL() { // If we don't have any comments, just emit a \n. if (!IsVerboseAsm) { @@ -98,7 +114,7 @@ public: /// @name MCStreamer Interface /// @{ - virtual void SwitchSection(const MCSection *Section); + virtual void ChangeSection(const MCSection *Section); virtual void InitSections() { // FIXME, this is MachO specific, but the testsuite @@ -109,10 +125,18 @@ public: } virtual void EmitLabel(MCSymbol *Symbol); - + virtual void EmitEHSymAttributes(const MCSymbol *Symbol, + MCSymbol *EHSymbol); virtual void EmitAssemblerFlag(MCAssemblerFlag Flag); + virtual void EmitThumbFunc(MCSymbol *Func); virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value); + virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol); + virtual void EmitDwarfAdvanceLineAddr(int64_t LineDelta, + const MCSymbol *LastLabel, + const MCSymbol *Label); + virtual void EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel, + const MCSymbol *Label); virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute); @@ -139,8 +163,15 @@ public: virtual void EmitBytes(StringRef Data, unsigned AddrSpace); - virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace); - virtual void EmitIntValue(uint64_t Value, unsigned Size, unsigned AddrSpace); + virtual void EmitValueImpl(const MCExpr *Value, unsigned Size, + unsigned AddrSpace); + virtual void EmitIntValue(uint64_t Value, unsigned Size, + unsigned AddrSpace = 0); + + virtual void EmitULEB128Value(const MCExpr *Value); + + virtual void EmitSLEB128Value(const MCExpr *Value); + virtual void EmitGPRel32Value(const MCExpr *Value); @@ -158,7 +189,51 @@ public: unsigned char Value = 0); virtual void EmitFileDirective(StringRef Filename); - virtual void EmitDwarfFileDirective(unsigned FileNo, StringRef Filename); + virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Filename); + virtual void EmitDwarfLocDirective(unsigned FileNo, unsigned Line, + unsigned Column, unsigned Flags, + unsigned Isa, unsigned Discriminator, + StringRef FileName); + + virtual void EmitCFISections(bool EH, bool Debug); + virtual void EmitCFIStartProc(); + virtual void EmitCFIEndProc(); + virtual void EmitCFIDefCfa(int64_t Register, int64_t Offset); + virtual void EmitCFIDefCfaOffset(int64_t Offset); + virtual void EmitCFIDefCfaRegister(int64_t Register); + virtual void EmitCFIOffset(int64_t Register, int64_t Offset); + virtual void EmitCFIPersonality(const MCSymbol *Sym, unsigned Encoding); + virtual void EmitCFILsda(const MCSymbol *Sym, unsigned Encoding); + virtual void EmitCFIRememberState(); + virtual void EmitCFIRestoreState(); + virtual void EmitCFISameValue(int64_t Register); + virtual void EmitCFIRelOffset(int64_t Register, int64_t Offset); + virtual void EmitCFIAdjustCfaOffset(int64_t Adjustment); + + virtual void EmitWin64EHStartProc(const MCSymbol *Symbol); + virtual void EmitWin64EHEndProc(); + virtual void EmitWin64EHStartChained(); + virtual void EmitWin64EHEndChained(); + virtual void EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind, + bool Except); + virtual void EmitWin64EHHandlerData(); + virtual void EmitWin64EHPushReg(unsigned Register); + virtual void EmitWin64EHSetFrame(unsigned Register, unsigned Offset); + virtual void EmitWin64EHAllocStack(unsigned Size); + virtual void EmitWin64EHSaveReg(unsigned Register, unsigned Offset); + virtual void EmitWin64EHSaveXMM(unsigned Register, unsigned Offset); + virtual void EmitWin64EHPushFrame(bool Code); + virtual void EmitWin64EHEndProlog(); + + virtual void EmitFnStart(); + virtual void EmitFnEnd(); + virtual void EmitCantUnwind(); + virtual void EmitPersonality(const MCSymbol *Personality); + virtual void EmitHandlerData(); + virtual void EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset = 0); + virtual void EmitPad(int64_t Offset); + virtual void EmitRegSave(const SmallVectorImpl &RegList, bool); + virtual void EmitInstruction(const MCInst &Inst); @@ -222,23 +297,32 @@ static inline int64_t truncateToSize(int64_t Value, unsigned Bytes) { return Value & ((uint64_t) (int64_t) -1 >> (64 - Bytes * 8)); } -void MCAsmStreamer::SwitchSection(const MCSection *Section) { +void MCAsmStreamer::ChangeSection(const MCSection *Section) { assert(Section && "Cannot switch to a null section!"); - if (Section != CurSection) { - PrevSection = CurSection; - CurSection = Section; - Section->PrintSwitchToSection(MAI, OS); - } + Section->PrintSwitchToSection(MAI, OS); +} + +void MCAsmStreamer::EmitEHSymAttributes(const MCSymbol *Symbol, + MCSymbol *EHSymbol) { + if (UseCFI) + return; + + unsigned Flags = FlagMap.lookup(Symbol); + + if (Flags & EHGlobal) + EmitSymbolAttribute(EHSymbol, MCSA_Global); + if (Flags & EHWeakDefinition) + EmitSymbolAttribute(EHSymbol, MCSA_WeakDefinition); + if (Flags & EHPrivateExtern) + EmitSymbolAttribute(EHSymbol, MCSA_PrivateExtern); } void MCAsmStreamer::EmitLabel(MCSymbol *Symbol) { assert(Symbol->isUndefined() && "Cannot define a symbol twice!"); - assert(!Symbol->isVariable() && "Cannot emit a variable symbol!"); - assert(CurSection && "Cannot emit before setting section!"); + MCStreamer::EmitLabel(Symbol); OS << *Symbol << MAI.getLabelSuffix(); EmitEOL(); - Symbol->setSection(*CurSection); } void MCAsmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) { @@ -246,10 +330,22 @@ void MCAsmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) { default: assert(0 && "Invalid flag!"); case MCAF_SyntaxUnified: OS << "\t.syntax unified"; break; case MCAF_SubsectionsViaSymbols: OS << ".subsections_via_symbols"; break; + case MCAF_Code16: OS << "\t.code\t16"; break; + case MCAF_Code32: OS << "\t.code\t32"; break; } EmitEOL(); } +void MCAsmStreamer::EmitThumbFunc(MCSymbol *Func) { + // This needs to emit to a temporary string to get properly quoted + // MCSymbols when they have spaces in them. + OS << "\t.thumb_func"; + // Only Mach-O hasSubsectionsViaSymbols() + if (MAI.hasSubsectionsViaSymbols()) + OS << '\t' << *Func; + EmitEOL(); +} + void MCAsmStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) { OS << *Symbol << " = " << *Value; EmitEOL(); @@ -258,6 +354,27 @@ void MCAsmStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) { Symbol->setVariableValue(Value); } +void MCAsmStreamer::EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) { + OS << ".weakref " << *Alias << ", " << *Symbol; + EmitEOL(); +} + +void MCAsmStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta, + const MCSymbol *LastLabel, + const MCSymbol *Label) { + EmitDwarfSetLineAddr(LineDelta, Label, + getContext().getTargetAsmInfo().getPointerSize()); +} + +void MCAsmStreamer::EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel, + const MCSymbol *Label) { + EmitIntValue(dwarf::DW_CFA_advance_loc4, 1); + const MCExpr *AddrDelta = BuildSymbolDiff(getContext(), Label, LastLabel); + AddrDelta = ForceExpAbs(AddrDelta); + EmitValue(AddrDelta, 4); +} + + void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) { switch (Attribute) { @@ -268,6 +385,7 @@ void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol, case MCSA_ELF_TypeTLS: /// .type _foo, STT_TLS # aka @tls_object case MCSA_ELF_TypeCommon: /// .type _foo, STT_COMMON # aka @common case MCSA_ELF_TypeNoType: /// .type _foo, STT_NOTYPE # aka @notype + case MCSA_ELF_TypeGnuUniqueObject: /// .type _foo, @gnu_unique_object assert(MAI.hasDotTypeDotSizeDirective() && "Symbol Attr not supported"); OS << "\t.type\t" << *Symbol << ',' << ((MAI.getCommentString()[0] != '@') ? '@' : '%'); @@ -279,11 +397,13 @@ void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol, case MCSA_ELF_TypeTLS: OS << "tls_object"; break; case MCSA_ELF_TypeCommon: OS << "common"; break; case MCSA_ELF_TypeNoType: OS << "no_type"; break; + case MCSA_ELF_TypeGnuUniqueObject: OS << "gnu_unique_object"; break; } EmitEOL(); return; case MCSA_Global: // .globl/.global OS << MAI.getGlobalDirective(); + FlagMap[Symbol] |= EHGlobal; break; case MCSA_Hidden: OS << "\t.hidden\t"; break; case MCSA_IndirectSymbol: OS << "\t.indirect_symbol\t"; break; @@ -291,11 +411,18 @@ void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol, case MCSA_LazyReference: OS << "\t.lazy_reference\t"; break; case MCSA_Local: OS << "\t.local\t"; break; case MCSA_NoDeadStrip: OS << "\t.no_dead_strip\t"; break; - case MCSA_PrivateExtern: OS << "\t.private_extern\t"; break; + case MCSA_SymbolResolver: OS << "\t.symbol_resolver\t"; break; + case MCSA_PrivateExtern: + OS << "\t.private_extern\t"; + FlagMap[Symbol] |= EHPrivateExtern; + break; case MCSA_Protected: OS << "\t.protected\t"; break; case MCSA_Reference: OS << "\t.reference\t"; break; case MCSA_Weak: OS << "\t.weak\t"; break; - case MCSA_WeakDefinition: OS << "\t.weak_definition\t"; break; + case MCSA_WeakDefinition: + OS << "\t.weak_definition\t"; + FlagMap[Symbol] |= EHWeakDefinition; + break; // .weak_reference case MCSA_WeakReference: OS << MAI.getWeakRefDirective(); break; case MCSA_WeakDefAutoPrivate: OS << "\t.weak_def_can_be_hidden\t"; break; @@ -428,7 +555,7 @@ static void PrintQuotedString(StringRef Data, raw_ostream &OS) { void MCAsmStreamer::EmitBytes(StringRef Data, unsigned AddrSpace) { - assert(CurSection && "Cannot emit contents before setting section!"); + assert(getCurrentSection() && "Cannot emit contents before setting section!"); if (Data.empty()) return; if (Data.size() == 1) { @@ -452,11 +579,14 @@ void MCAsmStreamer::EmitBytes(StringRef Data, unsigned AddrSpace) { EmitEOL(); } -/// EmitIntValue - Special case of EmitValue that avoids the client having -/// to pass in a MCExpr for constant integers. void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size, unsigned AddrSpace) { - assert(CurSection && "Cannot emit contents before setting section!"); + EmitValue(MCConstantExpr::Create(Value, getContext()), Size, AddrSpace); +} + +void MCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size, + unsigned AddrSpace) { + assert(getCurrentSection() && "Cannot emit contents before setting section!"); const char *Directive = 0; switch (Size) { default: break; @@ -467,35 +597,43 @@ void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size, Directive = MAI.getData64bitsDirective(AddrSpace); // If the target doesn't support 64-bit data, emit as two 32-bit halves. if (Directive) break; - if (isLittleEndian()) { - EmitIntValue((uint32_t)(Value >> 0 ), 4, AddrSpace); - EmitIntValue((uint32_t)(Value >> 32), 4, AddrSpace); + int64_t IntValue; + if (!Value->EvaluateAsAbsolute(IntValue)) + report_fatal_error("Don't know how to emit this value."); + if (getContext().getTargetAsmInfo().isLittleEndian()) { + EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace); + EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace); } else { - EmitIntValue((uint32_t)(Value >> 32), 4, AddrSpace); - EmitIntValue((uint32_t)(Value >> 0 ), 4, AddrSpace); + EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace); + EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace); } return; } assert(Directive && "Invalid size for machine code value!"); - OS << Directive << truncateToSize(Value, Size); + OS << Directive << *Value; EmitEOL(); } -void MCAsmStreamer::EmitValue(const MCExpr *Value, unsigned Size, - unsigned AddrSpace) { - assert(CurSection && "Cannot emit contents before setting section!"); - const char *Directive = 0; - switch (Size) { - default: break; - case 1: Directive = MAI.getData8bitsDirective(AddrSpace); break; - case 2: Directive = MAI.getData16bitsDirective(AddrSpace); break; - case 4: Directive = MAI.getData32bitsDirective(AddrSpace); break; - case 8: Directive = MAI.getData64bitsDirective(AddrSpace); break; +void MCAsmStreamer::EmitULEB128Value(const MCExpr *Value) { + int64_t IntValue; + if (Value->EvaluateAsAbsolute(IntValue)) { + EmitULEB128IntValue(IntValue); + return; } + assert(MAI.hasLEB128() && "Cannot print a .uleb"); + OS << ".uleb128 " << *Value; + EmitEOL(); +} - assert(Directive && "Invalid size for machine code value!"); - OS << Directive << *Value; +void MCAsmStreamer::EmitSLEB128Value(const MCExpr *Value) { + int64_t IntValue; + if (Value->EvaluateAsAbsolute(IntValue)) { + EmitSLEB128IntValue(IntValue); + return; + } + assert(MAI.hasLEB128() && "Cannot print a .sleb"); + OS << ".sleb128 " << *Value; EmitEOL(); } @@ -595,9 +733,329 @@ void MCAsmStreamer::EmitFileDirective(StringRef Filename) { EmitEOL(); } -void MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo, StringRef Filename){ - OS << "\t.file\t" << FileNo << ' '; - PrintQuotedString(Filename, OS); +bool MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo, StringRef Filename){ + if (UseLoc) { + OS << "\t.file\t" << FileNo << ' '; + PrintQuotedString(Filename, OS); + EmitEOL(); + } + return this->MCStreamer::EmitDwarfFileDirective(FileNo, Filename); +} + +void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line, + unsigned Column, unsigned Flags, + unsigned Isa, + unsigned Discriminator, + StringRef FileName) { + this->MCStreamer::EmitDwarfLocDirective(FileNo, Line, Column, Flags, + Isa, Discriminator, FileName); + if (!UseLoc) + return; + + OS << "\t.loc\t" << FileNo << " " << Line << " " << Column; + if (Flags & DWARF2_FLAG_BASIC_BLOCK) + OS << " basic_block"; + if (Flags & DWARF2_FLAG_PROLOGUE_END) + OS << " prologue_end"; + if (Flags & DWARF2_FLAG_EPILOGUE_BEGIN) + OS << " epilogue_begin"; + + unsigned OldFlags = getContext().getCurrentDwarfLoc().getFlags(); + if ((Flags & DWARF2_FLAG_IS_STMT) != (OldFlags & DWARF2_FLAG_IS_STMT)) { + OS << " is_stmt "; + + if (Flags & DWARF2_FLAG_IS_STMT) + OS << "1"; + else + OS << "0"; + } + + if (Isa) + OS << "isa " << Isa; + if (Discriminator) + OS << "discriminator " << Discriminator; + + if (IsVerboseAsm) { + OS.PadToColumn(MAI.getCommentColumn()); + OS << MAI.getCommentString() << ' ' << FileName << ':' + << Line << ':' << Column; + } + EmitEOL(); +} + +void MCAsmStreamer::EmitCFISections(bool EH, bool Debug) { + MCStreamer::EmitCFISections(EH, Debug); + + if (!UseCFI) + return; + + OS << "\t.cfi_sections "; + if (EH) { + OS << ".eh_frame"; + if (Debug) + OS << ", .debug_frame"; + } else if (Debug) { + OS << ".debug_frame"; + } + + EmitEOL(); +} + +void MCAsmStreamer::EmitCFIStartProc() { + MCStreamer::EmitCFIStartProc(); + + if (!UseCFI) + return; + + OS << "\t.cfi_startproc"; + EmitEOL(); +} + +void MCAsmStreamer::EmitCFIEndProc() { + MCStreamer::EmitCFIEndProc(); + + if (!UseCFI) + return; + + OS << "\t.cfi_endproc"; + EmitEOL(); +} + +void MCAsmStreamer::EmitRegisterName(int64_t Register) { + if (InstPrinter) { + const TargetAsmInfo &asmInfo = getContext().getTargetAsmInfo(); + unsigned LLVMRegister = asmInfo.getLLVMRegNum(Register, true); + OS << '%' << InstPrinter->getRegName(LLVMRegister); + } else { + OS << Register; + } +} + +void MCAsmStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) { + MCStreamer::EmitCFIDefCfa(Register, Offset); + + if (!UseCFI) + return; + + OS << "\t.cfi_def_cfa "; + EmitRegisterName(Register); + OS << ", " << Offset; + EmitEOL(); +} + +void MCAsmStreamer::EmitCFIDefCfaOffset(int64_t Offset) { + MCStreamer::EmitCFIDefCfaOffset(Offset); + + if (!UseCFI) + return; + + OS << "\t.cfi_def_cfa_offset " << Offset; + EmitEOL(); +} + +void MCAsmStreamer::EmitCFIDefCfaRegister(int64_t Register) { + MCStreamer::EmitCFIDefCfaRegister(Register); + + if (!UseCFI) + return; + + OS << "\t.cfi_def_cfa_register "; + EmitRegisterName(Register); + EmitEOL(); +} + +void MCAsmStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) { + this->MCStreamer::EmitCFIOffset(Register, Offset); + + if (!UseCFI) + return; + + OS << "\t.cfi_offset "; + EmitRegisterName(Register); + OS << ", " << Offset; + EmitEOL(); +} + +void MCAsmStreamer::EmitCFIPersonality(const MCSymbol *Sym, + unsigned Encoding) { + MCStreamer::EmitCFIPersonality(Sym, Encoding); + + if (!UseCFI) + return; + + OS << "\t.cfi_personality " << Encoding << ", " << *Sym; + EmitEOL(); +} + +void MCAsmStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) { + MCStreamer::EmitCFILsda(Sym, Encoding); + + if (!UseCFI) + return; + + OS << "\t.cfi_lsda " << Encoding << ", " << *Sym; + EmitEOL(); +} + +void MCAsmStreamer::EmitCFIRememberState() { + MCStreamer::EmitCFIRememberState(); + + if (!UseCFI) + return; + + OS << "\t.cfi_remember_state"; + EmitEOL(); +} + +void MCAsmStreamer::EmitCFIRestoreState() { + MCStreamer::EmitCFIRestoreState(); + + if (!UseCFI) + return; + + OS << "\t.cfi_restore_state"; + EmitEOL(); +} + +void MCAsmStreamer::EmitCFISameValue(int64_t Register) { + MCStreamer::EmitCFISameValue(Register); + + if (!UseCFI) + return; + + OS << "\t.cfi_same_value "; + EmitRegisterName(Register); + EmitEOL(); +} + +void MCAsmStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) { + MCStreamer::EmitCFIRelOffset(Register, Offset); + + if (!UseCFI) + return; + + OS << "\t.cfi_rel_offset "; + EmitRegisterName(Register); + OS << ", " << Offset; + EmitEOL(); +} + +void MCAsmStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) { + MCStreamer::EmitCFIAdjustCfaOffset(Adjustment); + + if (!UseCFI) + return; + + OS << "\t.cfi_adjust_cfa_offset " << Adjustment; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) { + MCStreamer::EmitWin64EHStartProc(Symbol); + + OS << ".seh_proc " << *Symbol; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHEndProc() { + MCStreamer::EmitWin64EHEndProc(); + + OS << "\t.seh_endproc"; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHStartChained() { + MCStreamer::EmitWin64EHStartChained(); + + OS << "\t.seh_startchained"; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHEndChained() { + MCStreamer::EmitWin64EHEndChained(); + + OS << "\t.seh_endchained"; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind, + bool Except) { + MCStreamer::EmitWin64EHHandler(Sym, Unwind, Except); + + OS << "\t.seh_handler " << *Sym; + if (Unwind) + OS << ", @unwind"; + if (Except) + OS << ", @except"; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHHandlerData() { + MCStreamer::EmitWin64EHHandlerData(); + + // Switch sections. Don't call SwitchSection directly, because that will + // cause the section switch to be visible in the emitted assembly. + // We only do this so the section switch that terminates the handler + // data block is visible. + MCWin64EHUnwindInfo *CurFrame = getCurrentW64UnwindInfo(); + StringRef suffix=MCWin64EHUnwindEmitter::GetSectionSuffix(CurFrame->Function); + const MCSection *xdataSect = + getContext().getTargetAsmInfo().getWin64EHTableSection(suffix); + if (xdataSect) + SwitchSectionNoChange(xdataSect); + + OS << "\t.seh_handlerdata"; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHPushReg(unsigned Register) { + MCStreamer::EmitWin64EHPushReg(Register); + + OS << "\t.seh_pushreg " << Register; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) { + MCStreamer::EmitWin64EHSetFrame(Register, Offset); + + OS << "\t.seh_setframe " << Register << ", " << Offset; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHAllocStack(unsigned Size) { + MCStreamer::EmitWin64EHAllocStack(Size); + + OS << "\t.seh_stackalloc " << Size; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) { + MCStreamer::EmitWin64EHSaveReg(Register, Offset); + + OS << "\t.seh_savereg " << Register << ", " << Offset; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) { + MCStreamer::EmitWin64EHSaveXMM(Register, Offset); + + OS << "\t.seh_savexmm " << Register << ", " << Offset; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHPushFrame(bool Code) { + MCStreamer::EmitWin64EHPushFrame(Code); + + OS << "\t.seh_pushframe"; + if (Code) + OS << " @code"; + EmitEOL(); +} + +void MCAsmStreamer::EmitWin64EHEndProlog(void) { + MCStreamer::EmitWin64EHEndProlog(); + + OS << "\t.seh_endprologue"; EmitEOL(); } @@ -619,7 +1077,7 @@ void MCAsmStreamer::AddEncodingComment(const MCInst &Inst) { for (unsigned i = 0, e = Fixups.size(); i != e; ++i) { MCFixup &F = Fixups[i]; - const MCFixupKindInfo &Info = Emitter->getFixupKindInfo(F.getKind()); + const MCFixupKindInfo &Info = AsmBackend->getFixupKindInfo(F.getKind()); for (unsigned j = 0; j != Info.TargetSize; ++j) { unsigned Index = F.getOffset() * 8 + Info.TargetOffset + j; assert(Index < Code.size() * 8 && "Invalid offset in fixup!"); @@ -627,6 +1085,8 @@ void MCAsmStreamer::AddEncodingComment(const MCInst &Inst) { } } + // FIXME: Node the fixup comments for Thumb2 are completely bogus since the + // high order halfword of a 32-bit Thumb2 instruction is emitted first. OS << "encoding: ["; for (unsigned i = 0, e = Code.size(); i != e; ++i) { if (i) @@ -646,15 +1106,26 @@ void MCAsmStreamer::AddEncodingComment(const MCInst &Inst) { if (MapEntry == 0) { OS << format("0x%02x", uint8_t(Code[i])); } else { - assert(Code[i] == 0 && "Encoder wrote into fixed up bit!"); - OS << char('A' + MapEntry - 1); + if (Code[i]) { + // FIXME: Some of the 8 bits require fix up. + OS << format("0x%02x", uint8_t(Code[i])) << '\'' + << char('A' + MapEntry - 1) << '\''; + } else + OS << char('A' + MapEntry - 1); } } else { // Otherwise, write out in binary. OS << "0b"; for (unsigned j = 8; j--;) { unsigned Bit = (Code[i] >> j) & 1; - if (uint8_t MapEntry = FixupMap[i * 8 + j]) { + + unsigned FixupBit; + if (getContext().getTargetAsmInfo().isLittleEndian()) + FixupBit = i * 8 + j; + else + FixupBit = i * 8 + (7-j); + + if (uint8_t MapEntry = FixupMap[FixupBit]) { assert(Bit == 0 && "Encoder wrote into fixed up bit!"); OS << char('A' + MapEntry - 1); } else @@ -666,14 +1137,69 @@ void MCAsmStreamer::AddEncodingComment(const MCInst &Inst) { for (unsigned i = 0, e = Fixups.size(); i != e; ++i) { MCFixup &F = Fixups[i]; - const MCFixupKindInfo &Info = Emitter->getFixupKindInfo(F.getKind()); + const MCFixupKindInfo &Info = AsmBackend->getFixupKindInfo(F.getKind()); OS << " fixup " << char('A' + i) << " - " << "offset: " << F.getOffset() << ", value: " << *F.getValue() << ", kind: " << Info.Name << "\n"; } } +void MCAsmStreamer::EmitFnStart() { + OS << "\t.fnstart"; + EmitEOL(); +} + +void MCAsmStreamer::EmitFnEnd() { + OS << "\t.fnend"; + EmitEOL(); +} + +void MCAsmStreamer::EmitCantUnwind() { + OS << "\t.cantunwind"; + EmitEOL(); +} + +void MCAsmStreamer::EmitHandlerData() { + OS << "\t.handlerdata"; + EmitEOL(); +} + +void MCAsmStreamer::EmitPersonality(const MCSymbol *Personality) { + OS << "\t.personality " << Personality->getName(); + EmitEOL(); +} + +void MCAsmStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) { + OS << "\t.setfp\t" << InstPrinter->getRegName(FpReg) + << ", " << InstPrinter->getRegName(SpReg); + if (Offset) + OS << ", #" << Offset; + EmitEOL(); +} + +void MCAsmStreamer::EmitPad(int64_t Offset) { + OS << "\t.pad\t#" << Offset; + EmitEOL(); +} + +void MCAsmStreamer::EmitRegSave(const SmallVectorImpl &RegList, + bool isVector) { + assert(RegList.size() && "RegList should not be empty"); + if (isVector) + OS << "\t.vsave\t{"; + else + OS << "\t.save\t{"; + + OS << InstPrinter->getRegName(RegList[0]); + + for (unsigned i = 1, e = RegList.size(); i != e; ++i) + OS << ", " << InstPrinter->getRegName(RegList[i]); + + OS << "}"; + EmitEOL(); +} + void MCAsmStreamer::EmitInstruction(const MCInst &Inst) { - assert(CurSection && "Cannot emit contents before setting section!"); + assert(getCurrentSection() && "Cannot emit contents before setting section!"); // Show the encoding in a comment if we have a code emitter. if (Emitter) @@ -704,13 +1230,20 @@ void MCAsmStreamer::EmitRawText(StringRef String) { } void MCAsmStreamer::Finish() { + // Dump out the dwarf file & directory tables and line tables. + if (getContext().hasDwarfFiles() && !UseLoc) + MCDwarfFileTable::Emit(this); + + if (!UseCFI) + EmitFrames(false); } MCStreamer *llvm::createAsmStreamer(MCContext &Context, formatted_raw_ostream &OS, - bool isLittleEndian, - bool isVerboseAsm, MCInstPrinter *IP, - MCCodeEmitter *CE, bool ShowInst) { - return new MCAsmStreamer(Context, OS, isLittleEndian, isVerboseAsm, - IP, CE, ShowInst); + bool isVerboseAsm, bool useLoc, + bool useCFI, + MCInstPrinter *IP, MCCodeEmitter *CE, + TargetAsmBackend *TAB, bool ShowInst) { + return new MCAsmStreamer(Context, OS, isVerboseAsm, useLoc, useCFI, + IP, CE, TAB, ShowInst); }