1 //===- lib/MC/MCStreamer.cpp - Streaming Machine Code Output --------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/MC/MCStreamer.h"
11 #include "llvm/ADT/SmallString.h"
12 #include "llvm/ADT/Twine.h"
13 #include "llvm/MC/MCAsmBackend.h"
14 #include "llvm/MC/MCAsmInfo.h"
15 #include "llvm/MC/MCContext.h"
16 #include "llvm/MC/MCExpr.h"
17 #include "llvm/MC/MCObjectWriter.h"
18 #include "llvm/MC/MCSymbol.h"
19 #include "llvm/Support/ErrorHandling.h"
20 #include "llvm/Support/LEB128.h"
21 #include "llvm/Support/raw_ostream.h"
25 // Pin the vtables to this file.
26 MCTargetStreamer::~MCTargetStreamer() {}
27 void MCTargetStreamer::emitLabel(MCSymbol *Symbol) {}
28 void ARMTargetStreamer::anchor() {}
30 MCStreamer::MCStreamer(MCContext &Ctx, MCTargetStreamer *TargetStreamer)
31 : Context(Ctx), TargetStreamer(TargetStreamer), EmitEHFrame(true),
32 EmitDebugFrame(false), CurrentW64UnwindInfo(0), LastSymbol(0),
33 AutoInitSections(false) {
34 SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
36 TargetStreamer->setStreamer(this);
39 MCStreamer::~MCStreamer() {
40 for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
41 delete W64UnwindInfos[i];
44 void MCStreamer::reset() {
45 for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
46 delete W64UnwindInfos[i];
47 W64UnwindInfos.clear();
49 EmitDebugFrame = false;
50 CurrentW64UnwindInfo = 0;
53 SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
56 const MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context,
59 MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None;
61 MCSymbolRefExpr::Create(A, Variant, Context);
63 MCSymbolRefExpr::Create(B, Variant, Context);
64 const MCExpr *AddrDelta =
65 MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context);
69 const MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) {
70 if (Context.getAsmInfo()->hasAggressiveSymbolFolding() ||
71 isa<MCSymbolRefExpr>(Expr))
74 MCSymbol *ABS = Context.CreateTempSymbol();
75 EmitAssignment(ABS, Expr);
76 return MCSymbolRefExpr::Create(ABS, Context);
79 raw_ostream &MCStreamer::GetCommentOS() {
80 // By default, discard comments.
84 void MCStreamer::generateCompactUnwindEncodings(MCAsmBackend *MAB) {
85 for (std::vector<MCDwarfFrameInfo>::iterator I = FrameInfos.begin(),
86 E = FrameInfos.end(); I != E; ++I)
87 I->CompactUnwindEncoding =
88 (MAB ? MAB->generateCompactUnwindEncoding(I->Instructions) : 0);
91 void MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta,
92 const MCSymbol *Label, int PointerSize) {
93 // emit the sequence to set the address
94 EmitIntValue(dwarf::DW_LNS_extended_op, 1);
95 EmitULEB128IntValue(PointerSize + 1);
96 EmitIntValue(dwarf::DW_LNE_set_address, 1);
97 EmitSymbolValue(Label, PointerSize);
99 // emit the sequence for the LineDelta (from 1) and a zero address delta.
100 MCDwarfLineAddr::Emit(this, LineDelta, 0);
103 /// EmitIntValue - Special case of EmitValue that avoids the client having to
104 /// pass in a MCExpr for constant integers.
105 void MCStreamer::EmitIntValue(uint64_t Value, unsigned Size) {
106 assert(Size <= 8 && "Invalid size");
107 assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) &&
110 const bool isLittleEndian = Context.getAsmInfo()->isLittleEndian();
111 for (unsigned i = 0; i != Size; ++i) {
112 unsigned index = isLittleEndian ? i : (Size - i - 1);
113 buf[i] = uint8_t(Value >> (index * 8));
115 EmitBytes(StringRef(buf, Size));
118 /// EmitULEB128Value - Special case of EmitULEB128Value that avoids the
119 /// client having to pass in a MCExpr for constant integers.
120 void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned Padding) {
121 SmallString<128> Tmp;
122 raw_svector_ostream OSE(Tmp);
123 encodeULEB128(Value, OSE, Padding);
124 EmitBytes(OSE.str());
127 /// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the
128 /// client having to pass in a MCExpr for constant integers.
129 void MCStreamer::EmitSLEB128IntValue(int64_t Value) {
130 SmallString<128> Tmp;
131 raw_svector_ostream OSE(Tmp);
132 encodeSLEB128(Value, OSE);
133 EmitBytes(OSE.str());
136 void MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size) {
137 const MCExpr *ABS = ForceExpAbs(Value);
138 EmitValue(ABS, Size);
142 void MCStreamer::EmitValue(const MCExpr *Value, unsigned Size) {
143 EmitValueImpl(Value, Size);
146 void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size) {
147 EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size);
150 void MCStreamer::EmitGPRel64Value(const MCExpr *Value) {
151 report_fatal_error("unsupported directive in streamer");
154 void MCStreamer::EmitGPRel32Value(const MCExpr *Value) {
155 report_fatal_error("unsupported directive in streamer");
158 /// EmitFill - Emit NumBytes bytes worth of the value specified by
159 /// FillValue. This implements directives such as '.space'.
160 void MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue) {
161 const MCExpr *E = MCConstantExpr::Create(FillValue, getContext());
162 for (uint64_t i = 0, e = NumBytes; i != e; ++i)
166 /// The implementation in this class just redirects to EmitFill.
167 void MCStreamer::EmitZeros(uint64_t NumBytes) {
168 EmitFill(NumBytes, 0);
171 bool MCStreamer::EmitDwarfFileDirective(unsigned FileNo,
173 StringRef Filename, unsigned CUID) {
174 return getContext().GetDwarfFile(Directory, Filename, FileNo, CUID) == 0;
177 void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
178 unsigned Column, unsigned Flags,
180 unsigned Discriminator,
181 StringRef FileName) {
182 getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa,
186 MCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() {
187 if (FrameInfos.empty())
189 return &FrameInfos.back();
192 void MCStreamer::EnsureValidFrame() {
193 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
194 if (!CurFrame || CurFrame->End)
195 report_fatal_error("No open frame");
198 void MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
199 MCSymbol *EHSymbol) {
202 void MCStreamer::AssignSection(MCSymbol *Symbol, const MCSection *Section) {
204 Symbol->setSection(*Section);
206 Symbol->setUndefined();
208 // As we emit symbols into a section, track the order so that they can
209 // be sorted upon later. Zero is reserved to mean 'unemitted'.
210 SymbolOrdering[Symbol] = 1 + SymbolOrdering.size();
213 void MCStreamer::EmitLabel(MCSymbol *Symbol) {
214 assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
215 assert(getCurrentSection().first && "Cannot emit before setting section!");
216 AssignSection(Symbol, getCurrentSection().first);
219 MCTargetStreamer *TS = getTargetStreamer();
221 TS->emitLabel(Symbol);
224 void MCStreamer::EmitDebugLabel(MCSymbol *Symbol) {
225 assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
226 assert(getCurrentSection().first && "Cannot emit before setting section!");
227 AssignSection(Symbol, getCurrentSection().first);
231 void MCStreamer::EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding) {
233 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
234 CurFrame->CompactUnwindEncoding = CompactUnwindEncoding;
237 void MCStreamer::EmitCFISections(bool EH, bool Debug) {
240 EmitDebugFrame = Debug;
243 void MCStreamer::EmitCFIStartProc() {
244 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
245 if (CurFrame && !CurFrame->End)
246 report_fatal_error("Starting a frame before finishing the previous one!");
248 MCDwarfFrameInfo Frame;
249 EmitCFIStartProcImpl(Frame);
251 FrameInfos.push_back(Frame);
254 void MCStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
257 void MCStreamer::RecordProcStart(MCDwarfFrameInfo &Frame) {
258 Frame.Function = LastSymbol;
259 // If the function is externally visible, we need to create a local
260 // symbol to avoid relocations.
261 StringRef Prefix = getContext().getAsmInfo()->getPrivateGlobalPrefix();
262 if (LastSymbol && LastSymbol->getName().startswith(Prefix)) {
263 Frame.Begin = LastSymbol;
265 Frame.Begin = getContext().CreateTempSymbol();
266 EmitLabel(Frame.Begin);
270 void MCStreamer::EmitCFIEndProc() {
272 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
273 EmitCFIEndProcImpl(*CurFrame);
276 void MCStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
279 void MCStreamer::RecordProcEnd(MCDwarfFrameInfo &Frame) {
280 Frame.End = getContext().CreateTempSymbol();
281 EmitLabel(Frame.End);
284 MCSymbol *MCStreamer::EmitCFICommon() {
286 MCSymbol *Label = getContext().CreateTempSymbol();
291 void MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
292 MCSymbol *Label = EmitCFICommon();
293 MCCFIInstruction Instruction =
294 MCCFIInstruction::createDefCfa(Label, Register, Offset);
295 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
296 CurFrame->Instructions.push_back(Instruction);
299 void MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
300 MCSymbol *Label = EmitCFICommon();
301 MCCFIInstruction Instruction =
302 MCCFIInstruction::createDefCfaOffset(Label, Offset);
303 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
304 CurFrame->Instructions.push_back(Instruction);
307 void MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
308 MCSymbol *Label = EmitCFICommon();
309 MCCFIInstruction Instruction =
310 MCCFIInstruction::createAdjustCfaOffset(Label, Adjustment);
311 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
312 CurFrame->Instructions.push_back(Instruction);
315 void MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
316 MCSymbol *Label = EmitCFICommon();
317 MCCFIInstruction Instruction =
318 MCCFIInstruction::createDefCfaRegister(Label, Register);
319 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
320 CurFrame->Instructions.push_back(Instruction);
323 void MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
324 MCSymbol *Label = EmitCFICommon();
325 MCCFIInstruction Instruction =
326 MCCFIInstruction::createOffset(Label, Register, Offset);
327 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
328 CurFrame->Instructions.push_back(Instruction);
331 void MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
332 MCSymbol *Label = EmitCFICommon();
333 MCCFIInstruction Instruction =
334 MCCFIInstruction::createRelOffset(Label, Register, Offset);
335 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
336 CurFrame->Instructions.push_back(Instruction);
339 void MCStreamer::EmitCFIPersonality(const MCSymbol *Sym,
342 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
343 CurFrame->Personality = Sym;
344 CurFrame->PersonalityEncoding = Encoding;
347 void MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
349 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
350 CurFrame->Lsda = Sym;
351 CurFrame->LsdaEncoding = Encoding;
354 void MCStreamer::EmitCFIRememberState() {
355 MCSymbol *Label = EmitCFICommon();
356 MCCFIInstruction Instruction = MCCFIInstruction::createRememberState(Label);
357 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
358 CurFrame->Instructions.push_back(Instruction);
361 void MCStreamer::EmitCFIRestoreState() {
362 // FIXME: Error if there is no matching cfi_remember_state.
363 MCSymbol *Label = EmitCFICommon();
364 MCCFIInstruction Instruction = MCCFIInstruction::createRestoreState(Label);
365 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
366 CurFrame->Instructions.push_back(Instruction);
369 void MCStreamer::EmitCFISameValue(int64_t Register) {
370 MCSymbol *Label = EmitCFICommon();
371 MCCFIInstruction Instruction =
372 MCCFIInstruction::createSameValue(Label, Register);
373 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
374 CurFrame->Instructions.push_back(Instruction);
377 void MCStreamer::EmitCFIRestore(int64_t Register) {
378 MCSymbol *Label = EmitCFICommon();
379 MCCFIInstruction Instruction =
380 MCCFIInstruction::createRestore(Label, Register);
381 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
382 CurFrame->Instructions.push_back(Instruction);
385 void MCStreamer::EmitCFIEscape(StringRef Values) {
386 MCSymbol *Label = EmitCFICommon();
387 MCCFIInstruction Instruction = MCCFIInstruction::createEscape(Label, Values);
388 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
389 CurFrame->Instructions.push_back(Instruction);
392 void MCStreamer::EmitCFISignalFrame() {
394 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
395 CurFrame->IsSignalFrame = true;
398 void MCStreamer::EmitCFIUndefined(int64_t Register) {
399 MCSymbol *Label = EmitCFICommon();
400 MCCFIInstruction Instruction =
401 MCCFIInstruction::createUndefined(Label, Register);
402 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
403 CurFrame->Instructions.push_back(Instruction);
406 void MCStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
407 MCSymbol *Label = EmitCFICommon();
408 MCCFIInstruction Instruction =
409 MCCFIInstruction::createRegister(Label, Register1, Register2);
410 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
411 CurFrame->Instructions.push_back(Instruction);
414 void MCStreamer::EmitCFIWindowSave() {
415 MCSymbol *Label = EmitCFICommon();
416 MCCFIInstruction Instruction =
417 MCCFIInstruction::createWindowSave(Label);
418 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
419 CurFrame->Instructions.push_back(Instruction);
422 void MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) {
423 W64UnwindInfos.push_back(Frame);
424 CurrentW64UnwindInfo = W64UnwindInfos.back();
427 void MCStreamer::EnsureValidW64UnwindInfo() {
428 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
429 if (!CurFrame || CurFrame->End)
430 report_fatal_error("No open Win64 EH frame function!");
433 void MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) {
434 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
435 if (CurFrame && !CurFrame->End)
436 report_fatal_error("Starting a function before ending the previous one!");
437 MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
438 Frame->Begin = getContext().CreateTempSymbol();
439 Frame->Function = Symbol;
440 EmitLabel(Frame->Begin);
441 setCurrentW64UnwindInfo(Frame);
444 void MCStreamer::EmitWin64EHEndProc() {
445 EnsureValidW64UnwindInfo();
446 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
447 if (CurFrame->ChainedParent)
448 report_fatal_error("Not all chained regions terminated!");
449 CurFrame->End = getContext().CreateTempSymbol();
450 EmitLabel(CurFrame->End);
453 void MCStreamer::EmitWin64EHStartChained() {
454 EnsureValidW64UnwindInfo();
455 MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
456 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
457 Frame->Begin = getContext().CreateTempSymbol();
458 Frame->Function = CurFrame->Function;
459 Frame->ChainedParent = CurFrame;
460 EmitLabel(Frame->Begin);
461 setCurrentW64UnwindInfo(Frame);
464 void MCStreamer::EmitWin64EHEndChained() {
465 EnsureValidW64UnwindInfo();
466 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
467 if (!CurFrame->ChainedParent)
468 report_fatal_error("End of a chained region outside a chained region!");
469 CurFrame->End = getContext().CreateTempSymbol();
470 EmitLabel(CurFrame->End);
471 CurrentW64UnwindInfo = CurFrame->ChainedParent;
474 void MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
476 EnsureValidW64UnwindInfo();
477 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
478 if (CurFrame->ChainedParent)
479 report_fatal_error("Chained unwind areas can't have handlers!");
480 CurFrame->ExceptionHandler = Sym;
481 if (!Except && !Unwind)
482 report_fatal_error("Don't know what kind of handler this is!");
484 CurFrame->HandlesUnwind = true;
486 CurFrame->HandlesExceptions = true;
489 void MCStreamer::EmitWin64EHHandlerData() {
490 EnsureValidW64UnwindInfo();
491 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
492 if (CurFrame->ChainedParent)
493 report_fatal_error("Chained unwind areas can't have handlers!");
496 void MCStreamer::EmitWin64EHPushReg(unsigned Register) {
497 EnsureValidW64UnwindInfo();
498 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
499 MCSymbol *Label = getContext().CreateTempSymbol();
500 MCWin64EHInstruction Inst(Win64EH::UOP_PushNonVol, Label, Register);
502 CurFrame->Instructions.push_back(Inst);
505 void MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) {
506 EnsureValidW64UnwindInfo();
507 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
508 if (CurFrame->LastFrameInst >= 0)
509 report_fatal_error("Frame register and offset already specified!");
511 report_fatal_error("Misaligned frame pointer offset!");
512 MCSymbol *Label = getContext().CreateTempSymbol();
513 MCWin64EHInstruction Inst(Win64EH::UOP_SetFPReg, Label, Register, Offset);
515 CurFrame->LastFrameInst = CurFrame->Instructions.size();
516 CurFrame->Instructions.push_back(Inst);
519 void MCStreamer::EmitWin64EHAllocStack(unsigned Size) {
520 EnsureValidW64UnwindInfo();
522 report_fatal_error("Misaligned stack allocation!");
523 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
524 MCSymbol *Label = getContext().CreateTempSymbol();
525 MCWin64EHInstruction Inst(Label, Size);
527 CurFrame->Instructions.push_back(Inst);
530 void MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) {
531 EnsureValidW64UnwindInfo();
533 report_fatal_error("Misaligned saved register offset!");
534 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
535 MCSymbol *Label = getContext().CreateTempSymbol();
536 MCWin64EHInstruction Inst(
537 Offset > 512*1024-8 ? Win64EH::UOP_SaveNonVolBig : Win64EH::UOP_SaveNonVol,
538 Label, Register, Offset);
540 CurFrame->Instructions.push_back(Inst);
543 void MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) {
544 EnsureValidW64UnwindInfo();
546 report_fatal_error("Misaligned saved vector register offset!");
547 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
548 MCSymbol *Label = getContext().CreateTempSymbol();
549 MCWin64EHInstruction Inst(
550 Offset > 512*1024-16 ? Win64EH::UOP_SaveXMM128Big : Win64EH::UOP_SaveXMM128,
551 Label, Register, Offset);
553 CurFrame->Instructions.push_back(Inst);
556 void MCStreamer::EmitWin64EHPushFrame(bool Code) {
557 EnsureValidW64UnwindInfo();
558 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
559 if (CurFrame->Instructions.size() > 0)
560 report_fatal_error("If present, PushMachFrame must be the first UOP");
561 MCSymbol *Label = getContext().CreateTempSymbol();
562 MCWin64EHInstruction Inst(Win64EH::UOP_PushMachFrame, Label, Code);
564 CurFrame->Instructions.push_back(Inst);
567 void MCStreamer::EmitWin64EHEndProlog() {
568 EnsureValidW64UnwindInfo();
569 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
570 CurFrame->PrologEnd = getContext().CreateTempSymbol();
571 EmitLabel(CurFrame->PrologEnd);
574 void MCStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
575 llvm_unreachable("This file format doesn't support this directive");
578 void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
579 llvm_unreachable("This file format doesn't support this directive");
582 /// EmitRawText - If this file is backed by an assembly streamer, this dumps
583 /// the specified string in the output .s file. This capability is
584 /// indicated by the hasRawTextSupport() predicate.
585 void MCStreamer::EmitRawTextImpl(StringRef String) {
586 errs() << "EmitRawText called on an MCStreamer that doesn't support it, "
587 " something must not be fully mc'ized\n";
591 void MCStreamer::EmitRawText(const Twine &T) {
592 SmallString<128> Str;
593 EmitRawTextImpl(T.toStringRef(Str));
596 void MCStreamer::EmitFrames(MCAsmBackend *MAB, bool usingCFI) {
597 if (!getNumFrameInfos())
601 MCDwarfFrameEmitter::Emit(*this, MAB, usingCFI, true);
604 MCDwarfFrameEmitter::Emit(*this, MAB, usingCFI, false);
607 void MCStreamer::EmitW64Tables() {
608 if (!getNumW64UnwindInfos())
611 MCWin64EHUnwindEmitter::Emit(*this);
614 void MCStreamer::Finish() {
615 if (!FrameInfos.empty() && !FrameInfos.back().End)
616 report_fatal_error("Unfinished frame!");
621 MCSymbolData &MCStreamer::getOrCreateSymbolData(MCSymbol *Symbol) {
622 report_fatal_error("Not supported!");
623 return *(static_cast<MCSymbolData*>(0));