diff options
Diffstat (limited to 'lib/MC/MCAsmStreamer.cpp')
| -rw-r--r-- | lib/MC/MCAsmStreamer.cpp | 196 |
1 files changed, 182 insertions, 14 deletions
diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp index 9717c016a92b..e8b09fcaced8 100644 --- a/lib/MC/MCAsmStreamer.cpp +++ b/lib/MC/MCAsmStreamer.cpp @@ -54,6 +54,8 @@ class MCAsmStreamer : public MCStreamer { bool needsSet(const MCExpr *Value); + void EmitRegisterName(int64_t Register); + public: MCAsmStreamer(MCContext &Context, formatted_raw_ostream &os, bool isVerboseAsm, bool useLoc, bool useCFI, @@ -193,6 +195,7 @@ public: 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); @@ -207,6 +210,21 @@ public: 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(); @@ -322,7 +340,8 @@ 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"; - if (Func) + // Only Mach-O hasSubsectionsViaSymbols() + if (MAI.hasSubsectionsViaSymbols()) OS << '\t' << *Func; EmitEOL(); } @@ -351,7 +370,7 @@ 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(this, getContext(), AddrDelta); + AddrDelta = ForceExpAbs(AddrDelta); EmitValue(AddrDelta, 4); } @@ -764,6 +783,24 @@ void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line, 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(); @@ -784,13 +821,25 @@ void MCAsmStreamer::EmitCFIEndProc() { EmitEOL(); } +void MCAsmStreamer::EmitRegisterName(int64_t Register) { + if (InstPrinter) { + const TargetAsmInfo &asmInfo = getContext().getTargetAsmInfo(); + unsigned LLVMRegister = asmInfo.getLLVMRegNum(Register, true); + InstPrinter->printRegName(OS, LLVMRegister); + } else { + OS << Register; + } +} + void MCAsmStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) { MCStreamer::EmitCFIDefCfa(Register, Offset); if (!UseCFI) return; - OS << ".cfi_def_cfa " << Register << ", " << Offset; + OS << "\t.cfi_def_cfa "; + EmitRegisterName(Register); + OS << ", " << Offset; EmitEOL(); } @@ -810,7 +859,8 @@ void MCAsmStreamer::EmitCFIDefCfaRegister(int64_t Register) { if (!UseCFI) return; - OS << "\t.cfi_def_cfa_register " << Register; + OS << "\t.cfi_def_cfa_register "; + EmitRegisterName(Register); EmitEOL(); } @@ -820,7 +870,9 @@ void MCAsmStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) { if (!UseCFI) return; - OS << "\t.cfi_offset " << Register << ", " << Offset; + OS << "\t.cfi_offset "; + EmitRegisterName(Register); + OS << ", " << Offset; EmitEOL(); } @@ -871,7 +923,8 @@ void MCAsmStreamer::EmitCFISameValue(int64_t Register) { if (!UseCFI) return; - OS << "\t.cfi_same_value " << Register; + OS << "\t.cfi_same_value "; + EmitRegisterName(Register); EmitEOL(); } @@ -881,7 +934,9 @@ void MCAsmStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) { if (!UseCFI) return; - OS << "\t.cfi_rel_offset " << Register << ", " << Offset; + OS << "\t.cfi_rel_offset "; + EmitRegisterName(Register); + OS << ", " << Offset; EmitEOL(); } @@ -895,6 +950,115 @@ void MCAsmStreamer::EmitCFIAdjustCfaOffset(int64_t 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(); +} + void MCAsmStreamer::AddEncodingComment(const MCInst &Inst) { raw_ostream &OS = GetCommentOS(); SmallString<256> Code; @@ -1005,8 +1169,10 @@ void MCAsmStreamer::EmitPersonality(const MCSymbol *Personality) { } void MCAsmStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) { - OS << "\t.setfp\t" << InstPrinter->getRegName(FpReg) - << ", " << InstPrinter->getRegName(SpReg); + OS << "\t.setfp\t"; + InstPrinter->printRegName(OS, FpReg); + OS << ", "; + InstPrinter->printRegName(OS, SpReg); if (Offset) OS << ", #" << Offset; EmitEOL(); @@ -1025,10 +1191,12 @@ void MCAsmStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, else OS << "\t.save\t{"; - OS << InstPrinter->getRegName(RegList[0]); + InstPrinter->printRegName(OS, RegList[0]); - for (unsigned i = 1, e = RegList.size(); i != e; ++i) - OS << ", " << InstPrinter->getRegName(RegList[i]); + for (unsigned i = 1, e = RegList.size(); i != e; ++i) { + OS << ", "; + InstPrinter->printRegName(OS, RegList[i]); + } OS << "}"; EmitEOL(); @@ -1070,8 +1238,8 @@ void MCAsmStreamer::Finish() { if (getContext().hasDwarfFiles() && !UseLoc) MCDwarfFileTable::Emit(this); - if (getNumFrameInfos() && !UseCFI) - MCDwarfFrameEmitter::Emit(*this, false); + if (!UseCFI) + EmitFrames(false); } MCStreamer *llvm::createAsmStreamer(MCContext &Context, |