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/MCAsmInfo.h"
14 #include "llvm/MC/MCContext.h"
15 #include "llvm/MC/MCExpr.h"
16 #include "llvm/MC/MCObjectWriter.h"
17 #include "llvm/MC/MCSymbol.h"
18 #include "llvm/Support/ErrorHandling.h"
19 #include "llvm/Support/LEB128.h"
20 #include "llvm/Support/raw_ostream.h"
24 MCStreamer::MCStreamer(StreamerKind Kind, MCContext &Ctx)
25 : Kind(Kind), Context(Ctx), EmitEHFrame(true), EmitDebugFrame(false),
26 CurrentW64UnwindInfo(0), LastSymbol(0), AutoInitSections(false) {
27 SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
30 MCStreamer::~MCStreamer() {
31 for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
32 delete W64UnwindInfos[i];
35 void MCStreamer::reset() {
36 for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
37 delete W64UnwindInfos[i];
38 W64UnwindInfos.clear();
40 EmitDebugFrame = false;
41 CurrentW64UnwindInfo = 0;
44 SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
47 const MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context,
50 MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None;
52 MCSymbolRefExpr::Create(A, Variant, Context);
54 MCSymbolRefExpr::Create(B, Variant, Context);
55 const MCExpr *AddrDelta =
56 MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context);
60 const MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) {
61 if (Context.getAsmInfo()->hasAggressiveSymbolFolding() ||
62 isa<MCSymbolRefExpr>(Expr))
65 MCSymbol *ABS = Context.CreateTempSymbol();
66 EmitAssignment(ABS, Expr);
67 return MCSymbolRefExpr::Create(ABS, Context);
70 raw_ostream &MCStreamer::GetCommentOS() {
71 // By default, discard comments.
75 void MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta,
76 const MCSymbol *Label, int PointerSize) {
77 // emit the sequence to set the address
78 EmitIntValue(dwarf::DW_LNS_extended_op, 1);
79 EmitULEB128IntValue(PointerSize + 1);
80 EmitIntValue(dwarf::DW_LNE_set_address, 1);
81 EmitSymbolValue(Label, PointerSize);
83 // emit the sequence for the LineDelta (from 1) and a zero address delta.
84 MCDwarfLineAddr::Emit(this, LineDelta, 0);
87 /// EmitIntValue - Special case of EmitValue that avoids the client having to
88 /// pass in a MCExpr for constant integers.
89 void MCStreamer::EmitIntValue(uint64_t Value, unsigned Size,
91 assert(Size <= 8 && "Invalid size");
92 assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) &&
95 const bool isLittleEndian = Context.getAsmInfo()->isLittleEndian();
96 for (unsigned i = 0; i != Size; ++i) {
97 unsigned index = isLittleEndian ? i : (Size - i - 1);
98 buf[i] = uint8_t(Value >> (index * 8));
100 EmitBytes(StringRef(buf, Size), AddrSpace);
103 /// EmitULEB128Value - Special case of EmitULEB128Value that avoids the
104 /// client having to pass in a MCExpr for constant integers.
105 void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned Padding,
106 unsigned AddrSpace) {
107 SmallString<128> Tmp;
108 raw_svector_ostream OSE(Tmp);
109 encodeULEB128(Value, OSE, Padding);
110 EmitBytes(OSE.str(), AddrSpace);
113 /// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the
114 /// client having to pass in a MCExpr for constant integers.
115 void MCStreamer::EmitSLEB128IntValue(int64_t Value, unsigned AddrSpace) {
116 SmallString<128> Tmp;
117 raw_svector_ostream OSE(Tmp);
118 encodeSLEB128(Value, OSE);
119 EmitBytes(OSE.str(), AddrSpace);
122 void MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size,
123 unsigned AddrSpace) {
124 const MCExpr *ABS = ForceExpAbs(Value);
125 EmitValue(ABS, Size, AddrSpace);
129 void MCStreamer::EmitValue(const MCExpr *Value, unsigned Size,
130 unsigned AddrSpace) {
131 EmitValueImpl(Value, Size, AddrSpace);
134 void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
135 unsigned AddrSpace) {
136 EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size,
140 void MCStreamer::EmitGPRel64Value(const MCExpr *Value) {
141 report_fatal_error("unsupported directive in streamer");
144 void MCStreamer::EmitGPRel32Value(const MCExpr *Value) {
145 report_fatal_error("unsupported directive in streamer");
148 /// EmitFill - Emit NumBytes bytes worth of the value specified by
149 /// FillValue. This implements directives such as '.space'.
150 void MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue,
151 unsigned AddrSpace) {
152 const MCExpr *E = MCConstantExpr::Create(FillValue, getContext());
153 for (uint64_t i = 0, e = NumBytes; i != e; ++i)
154 EmitValue(E, 1, AddrSpace);
157 /// EmitZeros - Emit NumBytes worth of zeros. Implementation in this class
158 /// just redirects to EmitFill.
159 void MCStreamer::EmitZeros(uint64_t NumBytes, unsigned AddrSpace) {
160 EmitFill(NumBytes, 0, AddrSpace);
163 bool MCStreamer::EmitDwarfFileDirective(unsigned FileNo,
165 StringRef Filename, unsigned CUID) {
166 return getContext().GetDwarfFile(Directory, Filename, FileNo, CUID) == 0;
169 void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
170 unsigned Column, unsigned Flags,
172 unsigned Discriminator,
173 StringRef FileName) {
174 getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa,
178 MCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() {
179 if (FrameInfos.empty())
181 return &FrameInfos.back();
184 void MCStreamer::EnsureValidFrame() {
185 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
186 if (!CurFrame || CurFrame->End)
187 report_fatal_error("No open frame");
190 void MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
191 MCSymbol *EHSymbol) {
194 void MCStreamer::EmitLabel(MCSymbol *Symbol) {
195 assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
196 assert(getCurrentSection().first && "Cannot emit before setting section!");
197 Symbol->setSection(*getCurrentSection().first);
201 void MCStreamer::EmitDebugLabel(MCSymbol *Symbol) {
202 assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
203 assert(getCurrentSection().first && "Cannot emit before setting section!");
204 Symbol->setSection(*getCurrentSection().first);
208 void MCStreamer::EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding) {
210 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
211 CurFrame->CompactUnwindEncoding = CompactUnwindEncoding;
214 void MCStreamer::EmitCFISections(bool EH, bool Debug) {
217 EmitDebugFrame = Debug;
220 void MCStreamer::EmitCFIStartProc() {
221 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
222 if (CurFrame && !CurFrame->End)
223 report_fatal_error("Starting a frame before finishing the previous one!");
225 MCDwarfFrameInfo Frame;
226 EmitCFIStartProcImpl(Frame);
228 FrameInfos.push_back(Frame);
231 void MCStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
234 void MCStreamer::RecordProcStart(MCDwarfFrameInfo &Frame) {
235 Frame.Function = LastSymbol;
236 // If the function is externally visible, we need to create a local
237 // symbol to avoid relocations.
238 StringRef Prefix = getContext().getAsmInfo()->getPrivateGlobalPrefix();
239 if (LastSymbol && LastSymbol->getName().startswith(Prefix)) {
240 Frame.Begin = LastSymbol;
242 Frame.Begin = getContext().CreateTempSymbol();
243 EmitLabel(Frame.Begin);
247 void MCStreamer::EmitCFIEndProc() {
249 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
250 EmitCFIEndProcImpl(*CurFrame);
253 void MCStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
256 void MCStreamer::RecordProcEnd(MCDwarfFrameInfo &Frame) {
257 Frame.End = getContext().CreateTempSymbol();
258 EmitLabel(Frame.End);
261 MCSymbol *MCStreamer::EmitCFICommon() {
263 MCSymbol *Label = getContext().CreateTempSymbol();
268 void MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
269 MCSymbol *Label = EmitCFICommon();
270 MCCFIInstruction Instruction =
271 MCCFIInstruction::createDefCfa(Label, Register, Offset);
272 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
273 CurFrame->Instructions.push_back(Instruction);
276 void MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
277 MCSymbol *Label = EmitCFICommon();
278 MCCFIInstruction Instruction =
279 MCCFIInstruction::createDefCfaOffset(Label, Offset);
280 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
281 CurFrame->Instructions.push_back(Instruction);
284 void MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
285 MCSymbol *Label = EmitCFICommon();
286 MCCFIInstruction Instruction =
287 MCCFIInstruction::createAdjustCfaOffset(Label, Adjustment);
288 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
289 CurFrame->Instructions.push_back(Instruction);
292 void MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
293 MCSymbol *Label = EmitCFICommon();
294 MCCFIInstruction Instruction =
295 MCCFIInstruction::createDefCfaRegister(Label, Register);
296 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
297 CurFrame->Instructions.push_back(Instruction);
300 void MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
301 MCSymbol *Label = EmitCFICommon();
302 MCCFIInstruction Instruction =
303 MCCFIInstruction::createOffset(Label, Register, Offset);
304 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
305 CurFrame->Instructions.push_back(Instruction);
308 void MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
309 MCSymbol *Label = EmitCFICommon();
310 MCCFIInstruction Instruction =
311 MCCFIInstruction::createRelOffset(Label, Register, Offset);
312 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
313 CurFrame->Instructions.push_back(Instruction);
316 void MCStreamer::EmitCFIPersonality(const MCSymbol *Sym,
319 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
320 CurFrame->Personality = Sym;
321 CurFrame->PersonalityEncoding = Encoding;
324 void MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
326 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
327 CurFrame->Lsda = Sym;
328 CurFrame->LsdaEncoding = Encoding;
331 void MCStreamer::EmitCFIRememberState() {
332 MCSymbol *Label = EmitCFICommon();
333 MCCFIInstruction Instruction = MCCFIInstruction::createRememberState(Label);
334 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
335 CurFrame->Instructions.push_back(Instruction);
338 void MCStreamer::EmitCFIRestoreState() {
339 // FIXME: Error if there is no matching cfi_remember_state.
340 MCSymbol *Label = EmitCFICommon();
341 MCCFIInstruction Instruction = MCCFIInstruction::createRestoreState(Label);
342 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
343 CurFrame->Instructions.push_back(Instruction);
346 void MCStreamer::EmitCFISameValue(int64_t Register) {
347 MCSymbol *Label = EmitCFICommon();
348 MCCFIInstruction Instruction =
349 MCCFIInstruction::createSameValue(Label, Register);
350 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
351 CurFrame->Instructions.push_back(Instruction);
354 void MCStreamer::EmitCFIRestore(int64_t Register) {
355 MCSymbol *Label = EmitCFICommon();
356 MCCFIInstruction Instruction =
357 MCCFIInstruction::createRestore(Label, Register);
358 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
359 CurFrame->Instructions.push_back(Instruction);
362 void MCStreamer::EmitCFIEscape(StringRef Values) {
363 MCSymbol *Label = EmitCFICommon();
364 MCCFIInstruction Instruction = MCCFIInstruction::createEscape(Label, Values);
365 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
366 CurFrame->Instructions.push_back(Instruction);
369 void MCStreamer::EmitCFISignalFrame() {
371 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
372 CurFrame->IsSignalFrame = true;
375 void MCStreamer::EmitCFIUndefined(int64_t Register) {
376 MCSymbol *Label = EmitCFICommon();
377 MCCFIInstruction Instruction =
378 MCCFIInstruction::createUndefined(Label, Register);
379 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
380 CurFrame->Instructions.push_back(Instruction);
383 void MCStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
384 MCSymbol *Label = EmitCFICommon();
385 MCCFIInstruction Instruction =
386 MCCFIInstruction::createRegister(Label, Register1, Register2);
387 MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
388 CurFrame->Instructions.push_back(Instruction);
391 void MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) {
392 W64UnwindInfos.push_back(Frame);
393 CurrentW64UnwindInfo = W64UnwindInfos.back();
396 void MCStreamer::EnsureValidW64UnwindInfo() {
397 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
398 if (!CurFrame || CurFrame->End)
399 report_fatal_error("No open Win64 EH frame function!");
402 void MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) {
403 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
404 if (CurFrame && !CurFrame->End)
405 report_fatal_error("Starting a function before ending the previous one!");
406 MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
407 Frame->Begin = getContext().CreateTempSymbol();
408 Frame->Function = Symbol;
409 EmitLabel(Frame->Begin);
410 setCurrentW64UnwindInfo(Frame);
413 void MCStreamer::EmitWin64EHEndProc() {
414 EnsureValidW64UnwindInfo();
415 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
416 if (CurFrame->ChainedParent)
417 report_fatal_error("Not all chained regions terminated!");
418 CurFrame->End = getContext().CreateTempSymbol();
419 EmitLabel(CurFrame->End);
422 void MCStreamer::EmitWin64EHStartChained() {
423 EnsureValidW64UnwindInfo();
424 MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
425 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
426 Frame->Begin = getContext().CreateTempSymbol();
427 Frame->Function = CurFrame->Function;
428 Frame->ChainedParent = CurFrame;
429 EmitLabel(Frame->Begin);
430 setCurrentW64UnwindInfo(Frame);
433 void MCStreamer::EmitWin64EHEndChained() {
434 EnsureValidW64UnwindInfo();
435 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
436 if (!CurFrame->ChainedParent)
437 report_fatal_error("End of a chained region outside a chained region!");
438 CurFrame->End = getContext().CreateTempSymbol();
439 EmitLabel(CurFrame->End);
440 CurrentW64UnwindInfo = CurFrame->ChainedParent;
443 void MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
445 EnsureValidW64UnwindInfo();
446 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
447 if (CurFrame->ChainedParent)
448 report_fatal_error("Chained unwind areas can't have handlers!");
449 CurFrame->ExceptionHandler = Sym;
450 if (!Except && !Unwind)
451 report_fatal_error("Don't know what kind of handler this is!");
453 CurFrame->HandlesUnwind = true;
455 CurFrame->HandlesExceptions = true;
458 void MCStreamer::EmitWin64EHHandlerData() {
459 EnsureValidW64UnwindInfo();
460 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
461 if (CurFrame->ChainedParent)
462 report_fatal_error("Chained unwind areas can't have handlers!");
465 void MCStreamer::EmitWin64EHPushReg(unsigned Register) {
466 EnsureValidW64UnwindInfo();
467 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
468 MCSymbol *Label = getContext().CreateTempSymbol();
469 MCWin64EHInstruction Inst(Win64EH::UOP_PushNonVol, Label, Register);
471 CurFrame->Instructions.push_back(Inst);
474 void MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) {
475 EnsureValidW64UnwindInfo();
476 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
477 if (CurFrame->LastFrameInst >= 0)
478 report_fatal_error("Frame register and offset already specified!");
480 report_fatal_error("Misaligned frame pointer offset!");
481 MCWin64EHInstruction Inst(Win64EH::UOP_SetFPReg, 0, Register, Offset);
482 CurFrame->LastFrameInst = CurFrame->Instructions.size();
483 CurFrame->Instructions.push_back(Inst);
486 void MCStreamer::EmitWin64EHAllocStack(unsigned Size) {
487 EnsureValidW64UnwindInfo();
489 report_fatal_error("Misaligned stack allocation!");
490 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
491 MCSymbol *Label = getContext().CreateTempSymbol();
492 MCWin64EHInstruction Inst(Label, Size);
494 CurFrame->Instructions.push_back(Inst);
497 void MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) {
498 EnsureValidW64UnwindInfo();
500 report_fatal_error("Misaligned saved register offset!");
501 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
502 MCSymbol *Label = getContext().CreateTempSymbol();
503 MCWin64EHInstruction Inst(
504 Offset > 512*1024-8 ? Win64EH::UOP_SaveNonVolBig : Win64EH::UOP_SaveNonVol,
505 Label, Register, Offset);
507 CurFrame->Instructions.push_back(Inst);
510 void MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) {
511 EnsureValidW64UnwindInfo();
513 report_fatal_error("Misaligned saved vector register offset!");
514 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
515 MCSymbol *Label = getContext().CreateTempSymbol();
516 MCWin64EHInstruction Inst(
517 Offset > 512*1024-16 ? Win64EH::UOP_SaveXMM128Big : Win64EH::UOP_SaveXMM128,
518 Label, Register, Offset);
520 CurFrame->Instructions.push_back(Inst);
523 void MCStreamer::EmitWin64EHPushFrame(bool Code) {
524 EnsureValidW64UnwindInfo();
525 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
526 if (CurFrame->Instructions.size() > 0)
527 report_fatal_error("If present, PushMachFrame must be the first UOP");
528 MCSymbol *Label = getContext().CreateTempSymbol();
529 MCWin64EHInstruction Inst(Win64EH::UOP_PushMachFrame, Label, Code);
531 CurFrame->Instructions.push_back(Inst);
534 void MCStreamer::EmitWin64EHEndProlog() {
535 EnsureValidW64UnwindInfo();
536 MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
537 CurFrame->PrologEnd = getContext().CreateTempSymbol();
538 EmitLabel(CurFrame->PrologEnd);
541 void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
542 llvm_unreachable("This file format doesn't support this directive");
545 void MCStreamer::EmitFnStart() {
546 errs() << "Not implemented yet\n";
550 void MCStreamer::EmitFnEnd() {
551 errs() << "Not implemented yet\n";
555 void MCStreamer::EmitCantUnwind() {
556 errs() << "Not implemented yet\n";
560 void MCStreamer::EmitHandlerData() {
561 errs() << "Not implemented yet\n";
565 void MCStreamer::EmitPersonality(const MCSymbol *Personality) {
566 errs() << "Not implemented yet\n";
570 void MCStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) {
571 errs() << "Not implemented yet\n";
575 void MCStreamer::EmitPad(int64_t Offset) {
576 errs() << "Not implemented yet\n";
580 void MCStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool) {
581 errs() << "Not implemented yet\n";
585 void MCStreamer::EmitTCEntry(const MCSymbol &S) {
586 llvm_unreachable("Unsupported method");
589 /// EmitRawText - If this file is backed by an assembly streamer, this dumps
590 /// the specified string in the output .s file. This capability is
591 /// indicated by the hasRawTextSupport() predicate.
592 void MCStreamer::EmitRawText(StringRef String) {
593 errs() << "EmitRawText called on an MCStreamer that doesn't support it, "
594 " something must not be fully mc'ized\n";
598 void MCStreamer::EmitRawText(const Twine &T) {
599 SmallString<128> Str;
601 EmitRawText(Str.str());
604 void MCStreamer::EmitFrames(bool usingCFI) {
605 if (!getNumFrameInfos())
609 MCDwarfFrameEmitter::Emit(*this, usingCFI, true);
612 MCDwarfFrameEmitter::Emit(*this, usingCFI, false);
615 void MCStreamer::EmitW64Tables() {
616 if (!getNumW64UnwindInfos())
619 MCWin64EHUnwindEmitter::Emit(*this);
622 void MCStreamer::Finish() {
623 if (!FrameInfos.empty() && !FrameInfos.back().End)
624 report_fatal_error("Unfinished frame!");
629 MCSymbolData &MCStreamer::getOrCreateSymbolData(MCSymbol *Symbol) {
630 report_fatal_error("Not supported!");
631 return *(static_cast<MCSymbolData*>(0));