//===----------------------------------------------------------------------===//
#include "llvm/MC/MCStreamer.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Twine.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCSectionMachO.h"
-#include "llvm/MC/MCSymbol.h"
+#include "llvm/MC/MCSymbolELF.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
namespace {
-class MCAsmStreamer : public MCStreamer {
-protected:
+class MCAsmStreamer final : public MCStreamer {
+ std::unique_ptr<formatted_raw_ostream> OSOwner;
formatted_raw_ostream &OS;
const MCAsmInfo *MAI;
-private:
std::unique_ptr<MCInstPrinter> InstPrinter;
std::unique_ptr<MCCodeEmitter> Emitter;
std::unique_ptr<MCAsmBackend> AsmBackend;
unsigned IsVerboseAsm : 1;
unsigned ShowInst : 1;
- unsigned UseCFI : 1;
unsigned UseDwarfDirectory : 1;
- enum EHSymbolFlags { EHGlobal = 1,
- EHWeakDefinition = 1 << 1,
- EHPrivateExtern = 1 << 2 };
- DenseMap<const MCSymbol*, unsigned> FlagMap;
-
- bool needsSet(const MCExpr *Value);
-
void EmitRegisterName(int64_t Register);
void EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) override;
void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) override;
public:
- MCAsmStreamer(MCContext &Context, formatted_raw_ostream &os,
- bool isVerboseAsm, bool useCFI, bool useDwarfDirectory,
+ MCAsmStreamer(MCContext &Context, std::unique_ptr<formatted_raw_ostream> os,
+ bool isVerboseAsm, bool useDwarfDirectory,
MCInstPrinter *printer, MCCodeEmitter *emitter,
MCAsmBackend *asmbackend, bool showInst)
- : MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()),
- InstPrinter(printer), Emitter(emitter), AsmBackend(asmbackend),
- CommentStream(CommentToEmit), IsVerboseAsm(isVerboseAsm),
- ShowInst(showInst), UseCFI(useCFI),
+ : MCStreamer(Context), OSOwner(std::move(os)), OS(*OSOwner),
+ MAI(Context.getAsmInfo()), InstPrinter(printer), Emitter(emitter),
+ AsmBackend(asmbackend), CommentStream(CommentToEmit),
+ IsVerboseAsm(isVerboseAsm), ShowInst(showInst),
UseDwarfDirectory(useDwarfDirectory) {
- if (InstPrinter && IsVerboseAsm)
- InstPrinter->setCommentStream(CommentStream);
+ assert(InstPrinter);
+ if (IsVerboseAsm)
+ InstPrinter->setCommentStream(CommentStream);
}
- ~MCAsmStreamer() {}
inline void EmitEOL() {
// If we don't have any comments, just emit a \n.
}
EmitCommentsAndEOL();
}
+
+ void EmitSyntaxDirective() override;
+
void EmitCommentsAndEOL();
/// isVerboseAsm - Return true if this streamer supports verbose assembly at
/// @name MCStreamer Interface
/// @{
- void ChangeSection(const MCSection *Section,
- const MCExpr *Subsection) override;
+ void ChangeSection(MCSection *Section, const MCExpr *Subsection) override;
+ void EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) override;
void EmitLabel(MCSymbol *Symbol) override;
- void EmitDebugLabel(MCSymbol *Symbol) override;
- void EmitEHSymAttributes(const MCSymbol *Symbol, MCSymbol *EHSymbol) override;
void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
void EmitLinkerOptions(ArrayRef<std::string> Options) override;
void EmitDataRegion(MCDataRegionType Kind) override;
void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) override;
void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) override;
- void EmitDwarfAdvanceLineAddr(int64_t LineDelta, const MCSymbol *LastLabel,
- const MCSymbol *Label,
- unsigned PointerSize) override;
- void EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
- const MCSymbol *Label) override;
-
bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override;
void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override;
void EmitCOFFSymbolStorageClass(int StorageClass) override;
void EmitCOFFSymbolType(int Type) override;
void EndCOFFSymbolDef() override;
+ void EmitCOFFSafeSEH(MCSymbol const *Symbol) override;
void EmitCOFFSectionIndex(MCSymbol const *Symbol) override;
void EmitCOFFSecRel32(MCSymbol const *Symbol) override;
- void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) override;
+ void emitELFSize(MCSymbolELF *Symbol, const MCExpr *Value) override;
void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) override;
void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) override;
- void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
+ void EmitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
uint64_t Size = 0, unsigned ByteAlignment = 0) override;
- void EmitTBSSSymbol (const MCSection *Section, MCSymbol *Symbol,
- uint64_t Size, unsigned ByteAlignment = 0) override;
+ void EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment = 0) override;
void EmitBytes(StringRef Data) override;
- void EmitValueImpl(const MCExpr *Value, unsigned Size) override;
+ void EmitValueImpl(const MCExpr *Value, unsigned Size,
+ const SMLoc &Loc = SMLoc()) override;
void EmitIntValue(uint64_t Value, unsigned Size) override;
void EmitULEB128Value(const MCExpr *Value) override;
unsigned Column, unsigned Flags,
unsigned Isa, unsigned Discriminator,
StringRef FileName) override;
+ MCSymbol *getDwarfLineTableSymbol(unsigned CUID) override;
void EmitIdent(StringRef IdentString) override;
void EmitCFISections(bool EH, bool Debug) override;
void EmitCFIRegister(int64_t Register1, int64_t Register2) override;
void EmitCFIWindowSave() override;
- void EmitWin64EHStartProc(const MCSymbol *Symbol) override;
- void EmitWin64EHEndProc() override;
- void EmitWin64EHStartChained() override;
- void EmitWin64EHEndChained() override;
- void EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
- bool Except) override;
- void EmitWin64EHHandlerData() override;
- void EmitWin64EHPushReg(unsigned Register) override;
- void EmitWin64EHSetFrame(unsigned Register, unsigned Offset) override;
- void EmitWin64EHAllocStack(unsigned Size) override;
- void EmitWin64EHSaveReg(unsigned Register, unsigned Offset) override;
- void EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) override;
- void EmitWin64EHPushFrame(bool Code) override;
- void EmitWin64EHEndProlog() override;
+ void EmitWinCFIStartProc(const MCSymbol *Symbol) override;
+ void EmitWinCFIEndProc() override;
+ void EmitWinCFIStartChained() override;
+ void EmitWinCFIEndChained() override;
+ void EmitWinCFIPushReg(unsigned Register) override;
+ void EmitWinCFISetFrame(unsigned Register, unsigned Offset) override;
+ void EmitWinCFIAllocStack(unsigned Size) override;
+ void EmitWinCFISaveReg(unsigned Register, unsigned Offset) override;
+ void EmitWinCFISaveXMM(unsigned Register, unsigned Offset) override;
+ void EmitWinCFIPushFrame(bool Code) override;
+ void EmitWinCFIEndProlog() override;
+
+ void EmitWinEHHandler(const MCSymbol *Sym, bool Unwind, bool Except) override;
+ void EmitWinEHHandlerData() override;
void EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI) override;
void MCAsmStreamer::AddComment(const Twine &T) {
if (!IsVerboseAsm) return;
- // Make sure that CommentStream is flushed.
- CommentStream.flush();
-
T.toVector(CommentToEmit);
// Each comment goes on its own line.
CommentToEmit.push_back('\n');
-
- // Tell the comment stream that the vector changed underneath it.
- CommentStream.resync();
}
void MCAsmStreamer::EmitCommentsAndEOL() {
return;
}
- CommentStream.flush();
- StringRef Comments = CommentToEmit.str();
+ StringRef Comments = CommentToEmit;
assert(Comments.back() == '\n' &&
"Comment array not newline terminated");
} while (!Comments.empty());
CommentToEmit.clear();
- // Tell the comment stream that the vector changed underneath it.
- CommentStream.resync();
}
static inline int64_t truncateToSize(int64_t Value, unsigned Bytes) {
EmitEOL();
}
-void MCAsmStreamer::ChangeSection(const MCSection *Section,
+void MCAsmStreamer::ChangeSection(MCSection *Section,
const MCExpr *Subsection) {
assert(Section && "Cannot switch to a null section!");
Section->PrintSwitchToSection(*MAI, OS, Subsection);
}
-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!");
MCStreamer::EmitLabel(Symbol);
- OS << *Symbol << MAI->getLabelSuffix();
+ Symbol->print(OS, MAI);
+ OS << MAI->getLabelSuffix();
+
EmitEOL();
}
-void MCAsmStreamer::EmitDebugLabel(MCSymbol *Symbol) {
- assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
- MCStreamer::EmitDebugLabel(Symbol);
+void MCAsmStreamer::EmitLOHDirective(MCLOHType Kind, const MCLOHArgs &Args) {
+ StringRef str = MCLOHIdToName(Kind);
+
+#ifndef NDEBUG
+ int NbArgs = MCLOHIdToNbArgs(Kind);
+ assert(NbArgs != -1 && ((size_t)NbArgs) == Args.size() && "Malformed LOH!");
+ assert(str != "" && "Invalid LOH name");
+#endif
- OS << *Symbol << MAI->getDebugLabelSuffix();
+ OS << "\t" << MCLOHDirectiveName() << " " << str << "\t";
+ bool IsFirst = true;
+ for (MCLOHArgs::const_iterator It = Args.begin(), EndIt = Args.end();
+ It != EndIt; ++It) {
+ if (!IsFirst)
+ OS << ", ";
+ IsFirst = false;
+ (*It)->print(OS, MAI);
+ }
EmitEOL();
}
// MCSymbols when they have spaces in them.
OS << "\t.thumb_func";
// Only Mach-O hasSubsectionsViaSymbols()
- if (MAI->hasSubsectionsViaSymbols())
- OS << '\t' << *Func;
+ if (MAI->hasSubsectionsViaSymbols()) {
+ OS << '\t';
+ Func->print(OS, MAI);
+ }
EmitEOL();
}
void MCAsmStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
- OS << *Symbol << " = " << *Value;
+ Symbol->print(OS, MAI);
+ OS << " = ";
+ Value->print(OS, MAI);
+
EmitEOL();
MCStreamer::EmitAssignment(Symbol, Value);
}
void MCAsmStreamer::EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {
- OS << ".weakref " << *Alias << ", " << *Symbol;
+ OS << ".weakref ";
+ Alias->print(OS, MAI);
+ OS << ", ";
+ Symbol->print(OS, MAI);
EmitEOL();
}
-void MCAsmStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
- const MCSymbol *LastLabel,
- const MCSymbol *Label,
- unsigned PointerSize) {
- EmitDwarfSetLineAddr(LineDelta, Label, PointerSize);
-}
-
-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);
-}
-
-
bool MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
MCSymbolAttr Attribute) {
switch (Attribute) {
case MCSA_ELF_TypeGnuUniqueObject: /// .type _foo, @gnu_unique_object
if (!MAI->hasDotTypeDotSizeDirective())
return false; // Symbol attribute not supported
- OS << "\t.type\t" << *Symbol << ','
- << ((MAI->getCommentString()[0] != '@') ? '@' : '%');
+ OS << "\t.type\t";
+ Symbol->print(OS, MAI);
+ OS << ',' << ((MAI->getCommentString()[0] != '@') ? '@' : '%');
switch (Attribute) {
default: return false;
case MCSA_ELF_TypeFunction: OS << "function"; break;
return true;
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;
case MCSA_Internal: OS << "\t.internal\t"; break;
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_NoDeadStrip:
+ if (!MAI->hasNoDeadStrip())
+ return false;
+ OS << "\t.no_dead_strip\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_Weak: OS << MAI->getWeakDirective(); 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;
}
- OS << *Symbol;
+ Symbol->print(OS, MAI);
EmitEOL();
return true;
}
void MCAsmStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
- OS << ".desc" << ' ' << *Symbol << ',' << DescValue;
+ OS << ".desc" << ' ';
+ Symbol->print(OS, MAI);
+ OS << ',' << DescValue;
EmitEOL();
}
+void MCAsmStreamer::EmitSyntaxDirective() {
+ if (MAI->getAssemblerDialect() == 1)
+ OS << "\t.intel_syntax noprefix\n";
+ // FIXME: Currently emit unprefix'ed registers.
+ // The intel_syntax directive has one optional argument
+ // with may have a value of prefix or noprefix.
+}
+
void MCAsmStreamer::BeginCOFFSymbolDef(const MCSymbol *Symbol) {
- OS << "\t.def\t " << *Symbol << ';';
+ OS << "\t.def\t ";
+ Symbol->print(OS, MAI);
+ OS << ';';
EmitEOL();
}
EmitEOL();
}
+void MCAsmStreamer::EmitCOFFSafeSEH(MCSymbol const *Symbol) {
+ OS << "\t.safeseh\t";
+ Symbol->print(OS, MAI);
+ EmitEOL();
+}
+
void MCAsmStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
- OS << "\t.secidx\t" << *Symbol;
+ OS << "\t.secidx\t";
+ Symbol->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
- OS << "\t.secrel32\t" << *Symbol;
+ OS << "\t.secrel32\t";
+ Symbol->print(OS, MAI);
EmitEOL();
}
-void MCAsmStreamer::EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
+void MCAsmStreamer::emitELFSize(MCSymbolELF *Symbol, const MCExpr *Value) {
assert(MAI->hasDotTypeDotSizeDirective());
- OS << "\t.size\t" << *Symbol << ", " << *Value << '\n';
+ OS << "\t.size\t";
+ Symbol->print(OS, MAI);
+ OS << ", ";
+ Value->print(OS, MAI);
+ OS << '\n';
}
void MCAsmStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) {
// Common symbols do not belong to any actual section.
- AssignSection(Symbol, NULL);
+ AssignSection(Symbol, nullptr);
+
+ OS << "\t.comm\t";
+ Symbol->print(OS, MAI);
+ OS << ',' << Size;
- OS << "\t.comm\t" << *Symbol << ',' << Size;
if (ByteAlignment != 0) {
if (MAI->getCOMMDirectiveAlignmentIsInBytes())
OS << ',' << ByteAlignment;
void MCAsmStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlign) {
// Common symbols do not belong to any actual section.
- AssignSection(Symbol, NULL);
+ AssignSection(Symbol, nullptr);
+
+ OS << "\t.lcomm\t";
+ Symbol->print(OS, MAI);
+ OS << ',' << Size;
- OS << "\t.lcomm\t" << *Symbol << ',' << Size;
if (ByteAlign > 1) {
switch (MAI->getLCOMMDirectiveAlignmentType()) {
case LCOMM::NoAlignment:
EmitEOL();
}
-void MCAsmStreamer::EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
+void MCAsmStreamer::EmitZerofill(MCSection *Section, MCSymbol *Symbol,
uint64_t Size, unsigned ByteAlignment) {
if (Symbol)
AssignSection(Symbol, Section);
const MCSectionMachO *MOSection = ((const MCSectionMachO*)Section);
OS << MOSection->getSegmentName() << "," << MOSection->getSectionName();
- if (Symbol != NULL) {
- OS << ',' << *Symbol << ',' << Size;
+ if (Symbol) {
+ OS << ',';
+ Symbol->print(OS, MAI);
+ OS << ',' << Size;
if (ByteAlignment != 0)
OS << ',' << Log2_32(ByteAlignment);
}
// .tbss sym, size, align
// This depends that the symbol has already been mangled from the original,
// e.g. _a.
-void MCAsmStreamer::EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
+void MCAsmStreamer::EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol,
uint64_t Size, unsigned ByteAlignment) {
AssignSection(Symbol, Section);
- assert(Symbol != NULL && "Symbol shouldn't be NULL!");
+ assert(Symbol && "Symbol shouldn't be NULL!");
// Instead of using the Section we'll just use the shortcut.
// This is a mach-o specific directive and section.
- OS << ".tbss " << *Symbol << ", " << Size;
+ OS << ".tbss ";
+ Symbol->print(OS, MAI);
+ OS << ", " << Size;
// Output align if we have it. We default to 1 so don't bother printing
// that.
}
void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size) {
- EmitValue(MCConstantExpr::Create(Value, getContext()), Size);
+ EmitValue(MCConstantExpr::create(Value, getContext()), Size);
}
-void MCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size) {
+void MCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
+ const SMLoc &Loc) {
assert(Size <= 8 && "Invalid size");
assert(getCurrentSection().first &&
"Cannot emit contents before setting section!");
- const char *Directive = 0;
+ const char *Directive = nullptr;
switch (Size) {
default: break;
case 1: Directive = MAI->getData8bitsDirective(); break;
if (!Directive) {
int64_t IntValue;
- if (!Value->EvaluateAsAbsolute(IntValue))
+ if (!Value->evaluateAsAbsolute(IntValue))
report_fatal_error("Don't know how to emit this value.");
// We couldn't handle the requested integer size so we fallback by breaking
// We truncate our partial emission to fit within the bounds of the
// emission domain. This produces nicer output and silences potential
// truncation warnings when round tripping through another assembler.
- ValueToEmit &= ~0ULL >> (64 - EmissionSize * 8);
+ uint64_t Shift = 64 - EmissionSize * 8;
+ assert(Shift < static_cast<uint64_t>(
+ std::numeric_limits<unsigned long long>::digits) &&
+ "undefined behavior");
+ ValueToEmit &= ~0ULL >> Shift;
EmitIntValue(ValueToEmit, EmissionSize);
Emitted += EmissionSize;
}
}
assert(Directive && "Invalid size for machine code value!");
- OS << Directive << *Value;
+ OS << Directive;
+ Value->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitULEB128Value(const MCExpr *Value) {
int64_t IntValue;
- if (Value->EvaluateAsAbsolute(IntValue)) {
+ if (Value->evaluateAsAbsolute(IntValue)) {
EmitULEB128IntValue(IntValue);
return;
}
- assert(MAI->hasLEB128() && "Cannot print a .uleb");
- OS << ".uleb128 " << *Value;
+ OS << ".uleb128 ";
+ Value->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitSLEB128Value(const MCExpr *Value) {
int64_t IntValue;
- if (Value->EvaluateAsAbsolute(IntValue)) {
+ if (Value->evaluateAsAbsolute(IntValue)) {
EmitSLEB128IntValue(IntValue);
return;
}
- assert(MAI->hasLEB128() && "Cannot print a .sleb");
- OS << ".sleb128 " << *Value;
+ OS << ".sleb128 ";
+ Value->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitGPRel64Value(const MCExpr *Value) {
- assert(MAI->getGPRel64Directive() != 0);
- OS << MAI->getGPRel64Directive() << *Value;
+ assert(MAI->getGPRel64Directive() != nullptr);
+ OS << MAI->getGPRel64Directive();
+ Value->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitGPRel32Value(const MCExpr *Value) {
- assert(MAI->getGPRel32Directive() != 0);
- OS << MAI->getGPRel32Directive() << *Value;
+ assert(MAI->getGPRel32Directive() != nullptr);
+ OS << MAI->getGPRel32Directive();
+ Value->print(OS, MAI);
EmitEOL();
}
bool MCAsmStreamer::EmitValueToOffset(const MCExpr *Offset,
unsigned char Value) {
// FIXME: Verify that Offset is associated with the current section.
- OS << ".org " << *Offset << ", " << (unsigned) Value;
+ OS << ".org ";
+ Offset->print(OS, MAI);
+ OS << ", " << (unsigned)Value;
EmitEOL();
return false;
}
unsigned Isa,
unsigned Discriminator,
StringRef FileName) {
- this->MCStreamer::EmitDwarfLocDirective(FileNo, Line, Column, Flags,
- Isa, Discriminator, FileName);
OS << "\t.loc\t" << FileNo << " " << Line << " " << Column;
if (Flags & DWARF2_FLAG_BASIC_BLOCK)
OS << " basic_block";
<< Line << ':' << Column;
}
EmitEOL();
+ this->MCStreamer::EmitDwarfLocDirective(FileNo, Line, Column, Flags,
+ Isa, Discriminator, FileName);
+}
+
+MCSymbol *MCAsmStreamer::getDwarfLineTableSymbol(unsigned CUID) {
+ // Always use the zeroth line table, since asm syntax only supports one line
+ // table for now.
+ return MCStreamer::getDwarfLineTableSymbol(0);
}
void MCAsmStreamer::EmitIdent(StringRef IdentString) {
void MCAsmStreamer::EmitCFISections(bool EH, bool Debug) {
MCStreamer::EmitCFISections(EH, Debug);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_sections ";
if (EH) {
OS << ".eh_frame";
}
void MCAsmStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
- if (!UseCFI) {
- RecordProcStart(Frame);
- return;
- }
-
OS << "\t.cfi_startproc";
if (Frame.IsSimple)
OS << " simple";
}
void MCAsmStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
- if (!UseCFI) {
- RecordProcEnd(Frame);
- return;
- }
-
- // Put a dummy non-null value in Frame.End to mark that this frame has been
- // closed.
- Frame.End = (MCSymbol *) 1;
-
+ MCStreamer::EmitCFIEndProcImpl(Frame);
OS << "\t.cfi_endproc";
EmitEOL();
}
void MCAsmStreamer::EmitRegisterName(int64_t Register) {
- if (InstPrinter && !MAI->useDwarfRegNumForCFI()) {
+ if (!MAI->useDwarfRegNumForCFI()) {
const MCRegisterInfo *MRI = getContext().getRegisterInfo();
unsigned LLVMRegister = MRI->getLLVMRegNum(Register, true);
InstPrinter->printRegName(OS, LLVMRegister);
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;
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;
void MCAsmStreamer::EmitCFIPersonality(const MCSymbol *Sym,
unsigned Encoding) {
MCStreamer::EmitCFIPersonality(Sym, Encoding);
-
- if (!UseCFI)
- return;
-
- OS << "\t.cfi_personality " << Encoding << ", " << *Sym;
+ OS << "\t.cfi_personality " << Encoding << ", ";
+ Sym->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
MCStreamer::EmitCFILsda(Sym, Encoding);
-
- if (!UseCFI)
- return;
-
- OS << "\t.cfi_lsda " << Encoding << ", " << *Sym;
+ OS << "\t.cfi_lsda " << Encoding << ", ";
+ Sym->print(OS, MAI);
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;
void MCAsmStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
MCStreamer::EmitCFIAdjustCfaOffset(Adjustment);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_adjust_cfa_offset " << Adjustment;
EmitEOL();
}
void MCAsmStreamer::EmitCFISignalFrame() {
MCStreamer::EmitCFISignalFrame();
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_signal_frame";
EmitEOL();
}
void MCAsmStreamer::EmitCFIUndefined(int64_t Register) {
MCStreamer::EmitCFIUndefined(Register);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_undefined " << Register;
EmitEOL();
}
void MCAsmStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
MCStreamer::EmitCFIRegister(Register1, Register2);
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_register " << Register1 << ", " << Register2;
EmitEOL();
}
void MCAsmStreamer::EmitCFIWindowSave() {
MCStreamer::EmitCFIWindowSave();
-
- if (!UseCFI)
- return;
-
OS << "\t.cfi_window_save";
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) {
- MCStreamer::EmitWin64EHStartProc(Symbol);
+void MCAsmStreamer::EmitWinCFIStartProc(const MCSymbol *Symbol) {
+ MCStreamer::EmitWinCFIStartProc(Symbol);
- OS << ".seh_proc " << *Symbol;
+ OS << ".seh_proc ";
+ Symbol->print(OS, MAI);
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHEndProc() {
- MCStreamer::EmitWin64EHEndProc();
+void MCAsmStreamer::EmitWinCFIEndProc() {
+ MCStreamer::EmitWinCFIEndProc();
OS << "\t.seh_endproc";
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHStartChained() {
- MCStreamer::EmitWin64EHStartChained();
+void MCAsmStreamer::EmitWinCFIStartChained() {
+ MCStreamer::EmitWinCFIStartChained();
OS << "\t.seh_startchained";
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHEndChained() {
- MCStreamer::EmitWin64EHEndChained();
+void MCAsmStreamer::EmitWinCFIEndChained() {
+ MCStreamer::EmitWinCFIEndChained();
OS << "\t.seh_endchained";
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
- bool Except) {
- MCStreamer::EmitWin64EHHandler(Sym, Unwind, Except);
+void MCAsmStreamer::EmitWinEHHandler(const MCSymbol *Sym, bool Unwind,
+ bool Except) {
+ MCStreamer::EmitWinEHHandler(Sym, Unwind, Except);
- OS << "\t.seh_handler " << *Sym;
+ OS << "\t.seh_handler ";
+ Sym->print(OS, MAI);
if (Unwind)
OS << ", @unwind";
if (Except)
EmitEOL();
}
-static const MCSection *getWin64EHTableSection(StringRef suffix,
- MCContext &context) {
- // FIXME: This doesn't belong in MCObjectFileInfo. However,
- /// this duplicate code in MCWin64EH.cpp.
- if (suffix == "")
- return context.getObjectFileInfo()->getXDataSection();
- return context.getCOFFSection((".xdata"+suffix).str(),
- COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
- COFF::IMAGE_SCN_MEM_READ |
- COFF::IMAGE_SCN_MEM_WRITE,
- SectionKind::getDataRel());
-}
-
-void MCAsmStreamer::EmitWin64EHHandlerData() {
- MCStreamer::EmitWin64EHHandlerData();
+void MCAsmStreamer::EmitWinEHHandlerData() {
+ MCStreamer::EmitWinEHHandlerData();
// 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 = getWin64EHTableSection(suffix, getContext());
- if (xdataSect)
- SwitchSectionNoChange(xdataSect);
+ WinEH::FrameInfo *CurFrame = getCurrentWinFrameInfo();
+ MCSection *XData =
+ WinEH::UnwindEmitter::getXDataSection(CurFrame->Function, getContext());
+ SwitchSectionNoChange(XData);
OS << "\t.seh_handlerdata";
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHPushReg(unsigned Register) {
- MCStreamer::EmitWin64EHPushReg(Register);
+void MCAsmStreamer::EmitWinCFIPushReg(unsigned Register) {
+ MCStreamer::EmitWinCFIPushReg(Register);
OS << "\t.seh_pushreg " << Register;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) {
- MCStreamer::EmitWin64EHSetFrame(Register, Offset);
+void MCAsmStreamer::EmitWinCFISetFrame(unsigned Register, unsigned Offset) {
+ MCStreamer::EmitWinCFISetFrame(Register, Offset);
OS << "\t.seh_setframe " << Register << ", " << Offset;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHAllocStack(unsigned Size) {
- MCStreamer::EmitWin64EHAllocStack(Size);
+void MCAsmStreamer::EmitWinCFIAllocStack(unsigned Size) {
+ MCStreamer::EmitWinCFIAllocStack(Size);
OS << "\t.seh_stackalloc " << Size;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) {
- MCStreamer::EmitWin64EHSaveReg(Register, Offset);
+void MCAsmStreamer::EmitWinCFISaveReg(unsigned Register, unsigned Offset) {
+ MCStreamer::EmitWinCFISaveReg(Register, Offset);
OS << "\t.seh_savereg " << Register << ", " << Offset;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) {
- MCStreamer::EmitWin64EHSaveXMM(Register, Offset);
+void MCAsmStreamer::EmitWinCFISaveXMM(unsigned Register, unsigned Offset) {
+ MCStreamer::EmitWinCFISaveXMM(Register, Offset);
OS << "\t.seh_savexmm " << Register << ", " << Offset;
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHPushFrame(bool Code) {
- MCStreamer::EmitWin64EHPushFrame(Code);
+void MCAsmStreamer::EmitWinCFIPushFrame(bool Code) {
+ MCStreamer::EmitWinCFIPushFrame(Code);
OS << "\t.seh_pushframe";
if (Code)
EmitEOL();
}
-void MCAsmStreamer::EmitWin64EHEndProlog(void) {
- MCStreamer::EmitWin64EHEndProlog();
+void MCAsmStreamer::EmitWinCFIEndProlog(void) {
+ MCStreamer::EmitWinCFIEndProlog();
OS << "\t.seh_endprologue";
EmitEOL();
SmallString<256> Code;
SmallVector<MCFixup, 4> Fixups;
raw_svector_ostream VecOS(Code);
- Emitter->EncodeInstruction(Inst, VecOS, Fixups, STI);
- VecOS.flush();
+ Emitter->encodeInstruction(Inst, VecOS, Fixups, STI);
// If we are showing fixups, create symbolic markers in the encoded
// representation. We do this by making a per-bit map to the fixup item index,
// Show the MCInst if enabled.
if (ShowInst) {
- Inst.dump_pretty(GetCommentOS(), MAI, InstPrinter.get(), "\n ");
+ Inst.dump_pretty(GetCommentOS(), InstPrinter.get(), "\n ");
GetCommentOS() << "\n";
}
- // If we have an AsmPrinter, use that to print, otherwise print the MCInst.
- if (InstPrinter)
- InstPrinter->printInst(&Inst, OS, "");
+ if(getTargetStreamer())
+ getTargetStreamer()->prettyPrintAsm(*InstPrinter, OS, Inst, STI);
else
- Inst.print(OS, MAI);
+ InstPrinter->printInst(&Inst, OS, "", STI);
+
EmitEOL();
}
void MCAsmStreamer::FinishImpl() {
// If we are generating dwarf for assembly source files dump out the sections.
if (getContext().getGenDwarfForAssembly())
- MCGenDwarfInfo::Emit(this, NULL);
-
- if (!UseCFI)
- EmitFrames(AsmBackend.get(), false);
+ MCGenDwarfInfo::Emit(this);
+
+ // Emit the label for the line table, if requested - since the rest of the
+ // line table will be defined by .loc/.file directives, and not emitted
+ // directly, the label is the only work required here.
+ auto &Tables = getContext().getMCDwarfLineTables();
+ if (!Tables.empty()) {
+ assert(Tables.size() == 1 && "asm output only supports one line table");
+ if (auto *Label = Tables.begin()->second.getLabel()) {
+ SwitchSection(getContext().getObjectFileInfo()->getDwarfLineSection());
+ EmitLabel(Label);
+ }
+ }
}
MCStreamer *llvm::createAsmStreamer(MCContext &Context,
- formatted_raw_ostream &OS,
- bool isVerboseAsm, bool useCFI,
- bool useDwarfDirectory, MCInstPrinter *IP,
- MCCodeEmitter *CE, MCAsmBackend *MAB,
- bool ShowInst) {
- return new MCAsmStreamer(Context, OS, isVerboseAsm, useCFI, useDwarfDirectory,
- IP, CE, MAB, ShowInst);
+ std::unique_ptr<formatted_raw_ostream> OS,
+ bool isVerboseAsm, bool useDwarfDirectory,
+ MCInstPrinter *IP, MCCodeEmitter *CE,
+ MCAsmBackend *MAB, bool ShowInst) {
+ return new MCAsmStreamer(Context, std::move(OS), isVerboseAsm,
+ useDwarfDirectory, IP, CE, MAB, ShowInst);
}