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 MCTargetStreamer::~MCTargetStreamer() {}
27 MCStreamer::MCStreamer(MCContext &Ctx, MCTargetStreamer *TargetStreamer)
28 : Context(Ctx), TargetStreamer(TargetStreamer), EmitEHFrame(true),
29 EmitDebugFrame(false), CurrentW64UnwindInfo(0), LastSymbol(0),
30 AutoInitSections(false) {
31 SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
33 TargetStreamer->setStreamer(this);
36 MCStreamer::~MCStreamer() {
37 for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
38 delete W64UnwindInfos[i];
41 void MCStreamer::reset() {
42 for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
43 delete W64UnwindInfos[i];
44 W64UnwindInfos.clear();
46 EmitDebugFrame = false;
47 CurrentW64UnwindInfo = 0;
50 SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
53 const MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context,
56 MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None;
58 MCSymbolRefExpr::Create(A, Variant, Context);
60 MCSymbolRefExpr::Create(B, Variant, Context);
61 const MCExpr *AddrDelta =
62 MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context);
66 const MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) {
67 if (Context.getAsmInfo()->hasAggressiveSymbolFolding() ||
68 isa<MCSymbolRefExpr>(Expr))
71 MCSymbol *ABS = Context.CreateTempSymbol();
72 EmitAssignment(ABS, Expr);
73 return MCSymbolRefExpr::Create(ABS, Context);
76 raw_ostream &MCStreamer::GetCommentOS() {
77 // By default, discard comments.
81 void MCStreamer::generateCompactUnwindEncodings(MCAsmBackend *MAB) {
82 for (std::vector<MCDwarfFrameInfo>::iterator I = FrameInfos.begin(),
83 E = FrameInfos.end(); I != E; ++I)
84 I->CompactUnwindEncoding =
85 (MAB ? MAB->generateCompactUnwindEncoding(I->Instructions) : 0);
88 void MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta,
89 const MCSymbol *Label, int PointerSize) {
90 // emit the sequence to set the address
91 EmitIntValue(dwarf::DW_LNS_extended_op, 1);
92 EmitULEB128IntValue(PointerSize + 1);
93 EmitIntValue(dwarf::DW_LNE_set_address, 1);
94 EmitSymbolValue(Label, PointerSize);
96 // emit the sequence for the LineDelta (from 1) and a zero address delta.
97 MCDwarfLineAddr::Emit(this, LineDelta, 0);
100 /// EmitIntValue - Special case of EmitValue that avoids the client having to
101 /// pass in a MCExpr for constant integers.
102 void MCStreamer::EmitIntValue(uint64_t Value, unsigned Size) {
103 assert(Size <= 8 && "Invalid size");
104 assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) &&
107 const bool isLittleEndian = Context.getAsmInfo()->isLittleEndian();
108 for (unsigned i = 0; i != Size; ++i) {
109 unsigned index = isLittleEndian ? i : (Size - i - 1);
110 buf[i] = uint8_t(Value >> (index * 8));
112 EmitBytes(StringRef(buf, Size));
115 /// EmitULEB128Value - Special case of EmitULEB128Value that avoids the
116 /// client having to pass in a MCExpr for constant integers.
117 void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned Padding) {
118 SmallString<128> Tmp;
119 raw_svector_ostream OSE(Tmp);
120 encodeULEB128(Value, OSE, Padding);
121 EmitBytes(OSE.str());
124 /// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the
125 /// client having to pass in a MCExpr for constant integers.
126 void MCStreamer::EmitSLEB128IntValue(int64_t Value) {
127 SmallString<128> Tmp;
128 raw_svector_ostream OSE(Tmp);
129 encodeSLEB128(Value, OSE);
130 EmitBytes(OSE.str());
133 void MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size) {
134 const MCExpr *ABS = ForceExpAbs(Value);
135 EmitValue(ABS, Size);
139 void MCStreamer::EmitValue(const MCExpr *Value, unsigned Size) {
140 EmitValueImpl(Value, Size);
143 void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size) {
144 EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size);
147 void MCStreamer::EmitGPRel64Value(const MCExpr *Value) {
148 report_fatal_error("unsupported directive in streamer");
151 void MCStreamer::EmitGPRel32Value(const MCExpr *Value) {
152 report_fatal_error("unsupported directive in streamer");
155 /// EmitFill - Emit NumBytes bytes worth of the value specified by
156 /// FillValue. This implements directives such as '.space'.
157 void MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue) {
158 const MCExpr *E = MCConstantExpr::Create(FillValue, getContext());
159 for (uint64_t i = 0, e = NumBytes; i != e; ++i)
163 /// The implementation in this class just redirects to EmitFill.
164 void MCStreamer::EmitZeros(uint64_t NumBytes) {
165 EmitFill(NumBytes, 0);
168 bool MCStreamer::EmitDwarfFileDirective(unsigned FileNo,
170 StringRef Filename, unsigned CUID) {
171 return getContext().GetDwarfFile(Directory, Filename, FileNo, CUID) == 0;
174 void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
175 unsigned Column, unsigned Flags,
177 unsigned Discriminator,
178 StringRef FileName) {
179 getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa,
183 MCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() {
184 if (FrameInfos.empty())
186 return &FrameInfos.back();
189 void MCStreamer::EnsureValidFrame() {
190 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
191 if (!CurFrame || CurFrame->End)
192 report_fatal_error("No open frame");
195 void MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
196 MCSymbol *EHSymbol) {
199 void MCStreamer::AssignSection(MCSymbol *Symbol, const MCSection *Section) {
201 Symbol->setSection(*Section);
203 Symbol->setUndefined();
205 // As we emit symbols into a section, track the order so that they can
206 // be sorted upon later. Zero is reserved to mean 'unemitted'.
207 SymbolOrdering[Symbol] = 1 + SymbolOrdering.size();
210 void MCStreamer::EmitLabel(MCSymbol *Symbol) {
211 assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
212 assert(getCurrentSection().first && "Cannot emit before setting section!");
213 AssignSection(Symbol, getCurrentSection().first);
217 void MCStreamer::EmitDebugLabel(MCSymbol *Symbol) {
218 assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
219 assert(getCurrentSection().first && "Cannot emit before setting section!");
220 AssignSection(Symbol, getCurrentSection().first);
224 void MCStreamer::EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding) {
226 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
227 CurFrame->CompactUnwindEncoding = CompactUnwindEncoding;
230 void MCStreamer::EmitCFISections(bool EH, bool Debug) {
233 EmitDebugFrame = Debug;
236 void MCStreamer::EmitCFIStartProc() {
237 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
238 if (CurFrame && !CurFrame->End)
239 report_fatal_error("Starting a frame before finishing the previous one!");
241 MCDwarfFrameInfo Frame;
242 EmitCFIStartProcImpl(Frame);
244 FrameInfos.push_back(Frame);
247 void MCStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
250 void MCStreamer::RecordProcStart(MCDwarfFrameInfo &Frame) {
251 Frame.Function = LastSymbol;
252 // If the function is externally visible, we need to create a local
253 // symbol to avoid relocations.
254 StringRef Prefix = getContext().getAsmInfo()->getPrivateGlobalPrefix();
255 if (LastSymbol && LastSymbol->getName().startswith(Prefix)) {
256 Frame.Begin = LastSymbol;
258 Frame.Begin = getContext().CreateTempSymbol();
259 EmitLabel(Frame.Begin);
263 void MCStreamer::EmitCFIEndProc() {
265 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
266 EmitCFIEndProcImpl(*CurFrame);
269 void MCStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
272 void MCStreamer::RecordProcEnd(MCDwarfFrameInfo &Frame) {
273 Frame.End = getContext().CreateTempSymbol();
274 EmitLabel(Frame.End);
277 MCSymbol *MCStreamer::EmitCFICommon() {
279 MCSymbol *Label = getContext().CreateTempSymbol();
284 void MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
285 MCSymbol *Label = EmitCFICommon();
286 MCCFIInstruction Instruction =
287 MCCFIInstruction::createDefCfa(Label, Register, Offset);
288 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
289 CurFrame->Instructions.push_back(Instruction);
292 void MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
293 MCSymbol *Label = EmitCFICommon();
294 MCCFIInstruction Instruction =
295 MCCFIInstruction::createDefCfaOffset(Label, Offset);
296 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
297 CurFrame->Instructions.push_back(Instruction);
300 void MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
301 MCSymbol *Label = EmitCFICommon();
302 MCCFIInstruction Instruction =
303 MCCFIInstruction::createAdjustCfaOffset(Label, Adjustment);
304 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
305 CurFrame->Instructions.push_back(Instruction);
308 void MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
309 MCSymbol *Label = EmitCFICommon();
310 MCCFIInstruction Instruction =
311 MCCFIInstruction::createDefCfaRegister(Label, Register);
312 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
313 CurFrame->Instructions.push_back(Instruction);
316 void MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
317 MCSymbol *Label = EmitCFICommon();
318 MCCFIInstruction Instruction =
319 MCCFIInstruction::createOffset(Label, Register, Offset);
320 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
321 CurFrame->Instructions.push_back(Instruction);
324 void MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
325 MCSymbol *Label = EmitCFICommon();
326 MCCFIInstruction Instruction =
327 MCCFIInstruction::createRelOffset(Label, Register, Offset);
328 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
329 CurFrame->Instructions.push_back(Instruction);
332 void MCStreamer::EmitCFIPersonality(const MCSymbol *Sym,
335 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
336 CurFrame->Personality = Sym;
337 CurFrame->PersonalityEncoding = Encoding;
340 void MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
342 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
343 CurFrame->Lsda = Sym;
344 CurFrame->LsdaEncoding = Encoding;
347 void MCStreamer::EmitCFIRememberState() {
348 MCSymbol *Label = EmitCFICommon();
349 MCCFIInstruction Instruction = MCCFIInstruction::createRememberState(Label);
350 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
351 CurFrame->Instructions.push_back(Instruction);
354 void MCStreamer::EmitCFIRestoreState() {
355 // FIXME: Error if there is no matching cfi_remember_state.
356 MCSymbol *Label = EmitCFICommon();
357 MCCFIInstruction Instruction = MCCFIInstruction::createRestoreState(Label);
358 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
359 CurFrame->Instructions.push_back(Instruction);
362 void MCStreamer::EmitCFISameValue(int64_t Register) {
363 MCSymbol *Label = EmitCFICommon();
364 MCCFIInstruction Instruction =
365 MCCFIInstruction::createSameValue(Label, Register);
366 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
367 CurFrame->Instructions.push_back(Instruction);
370 void MCStreamer::EmitCFIRestore(int64_t Register) {
371 MCSymbol *Label = EmitCFICommon();
372 MCCFIInstruction Instruction =
373 MCCFIInstruction::createRestore(Label, Register);
374 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
375 CurFrame->Instructions.push_back(Instruction);
378 void MCStreamer::EmitCFIEscape(StringRef Values) {
379 MCSymbol *Label = EmitCFICommon();
380 MCCFIInstruction Instruction = MCCFIInstruction::createEscape(Label, Values);
381 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
382 CurFrame->Instructions.push_back(Instruction);
385 void MCStreamer::EmitCFISignalFrame() {
387 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
388 CurFrame->IsSignalFrame = true;
391 void MCStreamer::EmitCFIUndefined(int64_t Register) {
392 MCSymbol *Label = EmitCFICommon();
393 MCCFIInstruction Instruction =
394 MCCFIInstruction::createUndefined(Label, Register);
395 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
396 CurFrame->Instructions.push_back(Instruction);
399 void MCStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
400 MCSymbol *Label = EmitCFICommon();
401 MCCFIInstruction Instruction =
402 MCCFIInstruction::createRegister(Label, Register1, Register2);
403 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
404 CurFrame->Instructions.push_back(Instruction);
407 void MCStreamer::EmitCFIWindowSave() {
408 MCSymbol *Label = EmitCFICommon();
409 MCCFIInstruction Instruction =
410 MCCFIInstruction::createWindowSave(Label);
411 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
412 CurFrame->Instructions.push_back(Instruction);
415 void MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) {
416 W64UnwindInfos.push_back(Frame);
417 CurrentW64UnwindInfo = W64UnwindInfos.back();
420 void MCStreamer::EnsureValidW64UnwindInfo() {
421 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
422 if (!CurFrame || CurFrame->End)
423 report_fatal_error("No open Win64 EH frame function!");
426 void MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) {
427 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
428 if (CurFrame && !CurFrame->End)
429 report_fatal_error("Starting a function before ending the previous one!");
430 MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
431 Frame->Begin = getContext().CreateTempSymbol();
432 Frame->Function = Symbol;
433 EmitLabel(Frame->Begin);
434 setCurrentW64UnwindInfo(Frame);
437 void MCStreamer::EmitWin64EHEndProc() {
438 EnsureValidW64UnwindInfo();
439 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
440 if (CurFrame->ChainedParent)
441 report_fatal_error("Not all chained regions terminated!");
442 CurFrame->End = getContext().CreateTempSymbol();
443 EmitLabel(CurFrame->End);
446 void MCStreamer::EmitWin64EHStartChained() {
447 EnsureValidW64UnwindInfo();
448 MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
449 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
450 Frame->Begin = getContext().CreateTempSymbol();
451 Frame->Function = CurFrame->Function;
452 Frame->ChainedParent = CurFrame;
453 EmitLabel(Frame->Begin);
454 setCurrentW64UnwindInfo(Frame);
457 void MCStreamer::EmitWin64EHEndChained() {
458 EnsureValidW64UnwindInfo();
459 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
460 if (!CurFrame->ChainedParent)
461 report_fatal_error("End of a chained region outside a chained region!");
462 CurFrame->End = getContext().CreateTempSymbol();
463 EmitLabel(CurFrame->End);
464 CurrentW64UnwindInfo = CurFrame->ChainedParent;
467 void MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
469 EnsureValidW64UnwindInfo();
470 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
471 if (CurFrame->ChainedParent)
472 report_fatal_error("Chained unwind areas can't have handlers!");
473 CurFrame->ExceptionHandler = Sym;
474 if (!Except && !Unwind)
475 report_fatal_error("Don't know what kind of handler this is!");
477 CurFrame->HandlesUnwind = true;
479 CurFrame->HandlesExceptions = true;
482 void MCStreamer::EmitWin64EHHandlerData() {
483 EnsureValidW64UnwindInfo();
484 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
485 if (CurFrame->ChainedParent)
486 report_fatal_error("Chained unwind areas can't have handlers!");
489 void MCStreamer::EmitWin64EHPushReg(unsigned Register) {
490 EnsureValidW64UnwindInfo();
491 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
492 MCSymbol *Label = getContext().CreateTempSymbol();
493 MCWin64EHInstruction Inst(Win64EH::UOP_PushNonVol, Label, Register);
495 CurFrame->Instructions.push_back(Inst);
498 void MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) {
499 EnsureValidW64UnwindInfo();
500 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
501 if (CurFrame->LastFrameInst >= 0)
502 report_fatal_error("Frame register and offset already specified!");
504 report_fatal_error("Misaligned frame pointer offset!");
505 MCSymbol *Label = getContext().CreateTempSymbol();
506 MCWin64EHInstruction Inst(Win64EH::UOP_SetFPReg, Label, Register, Offset);
508 CurFrame->LastFrameInst = CurFrame->Instructions.size();
509 CurFrame->Instructions.push_back(Inst);
512 void MCStreamer::EmitWin64EHAllocStack(unsigned Size) {
513 EnsureValidW64UnwindInfo();
515 report_fatal_error("Misaligned stack allocation!");
516 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
517 MCSymbol *Label = getContext().CreateTempSymbol();
518 MCWin64EHInstruction Inst(Label, Size);
520 CurFrame->Instructions.push_back(Inst);
523 void MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) {
524 EnsureValidW64UnwindInfo();
526 report_fatal_error("Misaligned saved register offset!");
527 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
528 MCSymbol *Label = getContext().CreateTempSymbol();
529 MCWin64EHInstruction Inst(
530 Offset > 512*1024-8 ? Win64EH::UOP_SaveNonVolBig : Win64EH::UOP_SaveNonVol,
531 Label, Register, Offset);
533 CurFrame->Instructions.push_back(Inst);
536 void MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) {
537 EnsureValidW64UnwindInfo();
539 report_fatal_error("Misaligned saved vector register offset!");
540 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
541 MCSymbol *Label = getContext().CreateTempSymbol();
542 MCWin64EHInstruction Inst(
543 Offset > 512*1024-16 ? Win64EH::UOP_SaveXMM128Big : Win64EH::UOP_SaveXMM128,
544 Label, Register, Offset);
546 CurFrame->Instructions.push_back(Inst);
549 void MCStreamer::EmitWin64EHPushFrame(bool Code) {
550 EnsureValidW64UnwindInfo();
551 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
552 if (CurFrame->Instructions.size() > 0)
553 report_fatal_error("If present, PushMachFrame must be the first UOP");
554 MCSymbol *Label = getContext().CreateTempSymbol();
555 MCWin64EHInstruction Inst(Win64EH::UOP_PushMachFrame, Label, Code);
557 CurFrame->Instructions.push_back(Inst);
560 void MCStreamer::EmitWin64EHEndProlog() {
561 EnsureValidW64UnwindInfo();
562 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
563 CurFrame->PrologEnd = getContext().CreateTempSymbol();
564 EmitLabel(CurFrame->PrologEnd);
567 void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
568 llvm_unreachable("This file format doesn't support this directive");
571 /// EmitRawText - If this file is backed by an assembly streamer, this dumps
572 /// the specified string in the output .s file. This capability is
573 /// indicated by the hasRawTextSupport() predicate.
574 void MCStreamer::EmitRawText(StringRef String) {
575 errs() << "EmitRawText called on an MCStreamer that doesn't support it, "
576 " something must not be fully mc'ized\n";
580 void MCStreamer::EmitRawText(const Twine &T) {
581 SmallString<128> Str;
583 EmitRawText(Str.str());
586 void MCStreamer::EmitFrames(MCAsmBackend *MAB, bool usingCFI) {
587 if (!getNumFrameInfos())
591 MCDwarfFrameEmitter::Emit(*this, MAB, usingCFI, true);
594 MCDwarfFrameEmitter::Emit(*this, MAB, usingCFI, false);
597 void MCStreamer::EmitW64Tables() {
598 if (!getNumW64UnwindInfos())
601 MCWin64EHUnwindEmitter::Emit(*this);
604 void MCStreamer::Finish() {
605 if (!FrameInfos.empty() && !FrameInfos.back().End)
606 report_fatal_error("Unfinished frame!");
611 MCSymbolData &MCStreamer::getOrCreateSymbolData(MCSymbol *Symbol) {
612 report_fatal_error("Not supported!");
613 return *(static_cast<MCSymbolData*>(0));