//===----------------------------------------------------------------------===//
#include "llvm/MC/MCStreamer.h"
+#include "llvm/ADT/OwningPtr.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCFixupKindInfo.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstPrinter.h"
+#include "llvm/MC/MCObjectFileInfo.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/ADT/OwningPtr.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/Twine.h"
+#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/MathExtras.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/FormattedStream.h"
-#include "llvm/Target/TargetAsmBackend.h"
-#include "llvm/Target/TargetAsmInfo.h"
-#include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/Path.h"
#include <cctype>
using namespace llvm;
class MCAsmStreamer : public MCStreamer {
protected:
formatted_raw_ostream &OS;
- const MCAsmInfo &MAI;
+ const MCAsmInfo *MAI;
private:
OwningPtr<MCInstPrinter> InstPrinter;
OwningPtr<MCCodeEmitter> Emitter;
- OwningPtr<TargetAsmBackend> AsmBackend;
+ OwningPtr<MCAsmBackend> AsmBackend;
SmallString<128> CommentToEmit;
raw_svector_ostream CommentStream;
unsigned ShowInst : 1;
unsigned UseLoc : 1;
unsigned UseCFI : 1;
+ unsigned UseDwarfDirectory : 1;
enum EHSymbolFlags { EHGlobal = 1,
EHWeakDefinition = 1 << 1,
bool needsSet(const MCExpr *Value);
void EmitRegisterName(int64_t Register);
+ virtual void EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame);
+ virtual void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame);
public:
- MCAsmStreamer(MCContext &Context, formatted_raw_ostream &os,
- bool isVerboseAsm, bool useLoc, bool useCFI,
- MCInstPrinter *printer, MCCodeEmitter *emitter,
- TargetAsmBackend *asmbackend,
- bool showInst)
- : MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()),
- InstPrinter(printer), Emitter(emitter), AsmBackend(asmbackend),
- CommentStream(CommentToEmit), IsVerboseAsm(isVerboseAsm),
- ShowInst(showInst), UseLoc(useLoc), UseCFI(useCFI) {
+ MCAsmStreamer(MCContext &Context, MCTargetStreamer *TargetStreamer,
+ formatted_raw_ostream &os, bool isVerboseAsm, bool useLoc,
+ bool useCFI, bool useDwarfDirectory, MCInstPrinter *printer,
+ MCCodeEmitter *emitter, MCAsmBackend *asmbackend, bool showInst)
+ : MCStreamer(Context, TargetStreamer), OS(os), MAI(Context.getAsmInfo()),
+ InstPrinter(printer), Emitter(emitter), AsmBackend(asmbackend),
+ CommentStream(CommentToEmit), IsVerboseAsm(isVerboseAsm),
+ ShowInst(showInst), UseLoc(useLoc), UseCFI(useCFI),
+ UseDwarfDirectory(useDwarfDirectory) {
if (InstPrinter && IsVerboseAsm)
InstPrinter->setCommentStream(CommentStream);
}
/// @name MCStreamer Interface
/// @{
- virtual void ChangeSection(const MCSection *Section);
+ virtual void ChangeSection(const MCSection *Section,
+ const MCExpr *Subsection);
virtual void InitSections() {
- // FIXME, this is MachO specific, but the testsuite
- // expects this.
- SwitchSection(getContext().getMachOSection("__TEXT", "__text",
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
- 0, SectionKind::getText()));
+ InitToTextSection();
+ }
+
+ virtual void InitToTextSection() {
+ SwitchSection(getContext().getObjectFileInfo()->getTextSection());
}
virtual void EmitLabel(MCSymbol *Symbol);
+ virtual void EmitDebugLabel(MCSymbol *Symbol);
+
virtual void EmitEHSymAttributes(const MCSymbol *Symbol,
MCSymbol *EHSymbol);
virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
+ virtual void EmitLinkerOptions(ArrayRef<std::string> Options);
+ virtual void EmitDataRegion(MCDataRegionType Kind);
virtual void EmitThumbFunc(MCSymbol *Func);
virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value);
virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol);
virtual void EmitDwarfAdvanceLineAddr(int64_t LineDelta,
const MCSymbol *LastLabel,
- const MCSymbol *Label);
+ const MCSymbol *Label,
+ unsigned PointerSize);
virtual void EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
const MCSymbol *Label);
- virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
+ virtual bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol);
virtual void EmitCOFFSymbolStorageClass(int StorageClass);
virtual void EmitCOFFSymbolType(int Type);
virtual void EndCOFFSymbolDef();
+ virtual void EmitCOFFSecRel32(MCSymbol const *Symbol);
virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment);
///
/// @param Symbol - The common symbol to emit.
/// @param Size - The size of the common symbol.
- virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size);
+ /// @param ByteAlignment - The alignment of the common symbol in bytes.
+ virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlignment);
virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
- unsigned Size = 0, unsigned ByteAlignment = 0);
+ uint64_t Size = 0, unsigned ByteAlignment = 0);
virtual void EmitTBSSSymbol (const MCSection *Section, MCSymbol *Symbol,
uint64_t Size, unsigned ByteAlignment = 0);
- virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
+ virtual void EmitBytes(StringRef Data);
- virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace);
- virtual void EmitIntValue(uint64_t Value, unsigned Size,
- unsigned AddrSpace = 0);
+ virtual void EmitValueImpl(const MCExpr *Value, unsigned Size);
+ virtual void EmitIntValue(uint64_t Value, unsigned Size);
virtual void EmitULEB128Value(const MCExpr *Value);
virtual void EmitSLEB128Value(const MCExpr *Value);
+ virtual void EmitGPRel64Value(const MCExpr *Value);
+
virtual void EmitGPRel32Value(const MCExpr *Value);
- virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue,
- unsigned AddrSpace);
+ virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue);
virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
unsigned ValueSize = 1,
virtual void EmitCodeAlignment(unsigned ByteAlignment,
unsigned MaxBytesToEmit = 0);
- virtual void EmitValueToOffset(const MCExpr *Offset,
+ virtual bool EmitValueToOffset(const MCExpr *Offset,
unsigned char Value = 0);
virtual void EmitFileDirective(StringRef Filename);
- virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Filename);
+ virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
+ StringRef Filename, unsigned CUID = 0);
virtual void EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
unsigned Column, unsigned Flags,
unsigned Isa, unsigned Discriminator,
StringRef FileName);
+ virtual void EmitIdent(StringRef IdentString);
virtual void EmitCFISections(bool EH, bool Debug);
- virtual void EmitCFIStartProc();
- virtual void EmitCFIEndProc();
virtual void EmitCFIDefCfa(int64_t Register, int64_t Offset);
virtual void EmitCFIDefCfaOffset(int64_t Offset);
virtual void EmitCFIDefCfaRegister(int64_t Register);
virtual void EmitCFISameValue(int64_t Register);
virtual void EmitCFIRelOffset(int64_t Register, int64_t Offset);
virtual void EmitCFIAdjustCfaOffset(int64_t Adjustment);
+ virtual void EmitCFISignalFrame();
+ virtual void EmitCFIUndefined(int64_t Register);
+ virtual void EmitCFIRegister(int64_t Register1, int64_t Register2);
+ virtual void EmitCFIWindowSave();
virtual void EmitWin64EHStartProc(const MCSymbol *Symbol);
virtual void EmitWin64EHEndProc();
virtual void EmitWin64EHPushFrame(bool Code);
virtual void EmitWin64EHEndProlog();
- virtual void EmitFnStart();
- virtual void EmitFnEnd();
- virtual void EmitCantUnwind();
- virtual void EmitPersonality(const MCSymbol *Personality);
- virtual void EmitHandlerData();
- virtual void EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset = 0);
- virtual void EmitPad(int64_t Offset);
- virtual void EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool);
-
-
virtual void EmitInstruction(const MCInst &Inst);
+ virtual void EmitBundleAlignMode(unsigned AlignPow2);
+ virtual void EmitBundleLock(bool AlignToEnd);
+ virtual void EmitBundleUnlock();
+
/// EmitRawText - If this file is backed by an assembly streamer, this dumps
/// the specified string in the output .s file. This capability is
/// indicated by the hasRawTextSupport() predicate.
- virtual void EmitRawText(StringRef String);
-
- virtual void Finish();
+ virtual void EmitRawTextImpl(StringRef String);
- /// @}
+ virtual void FinishImpl();
};
} // end anonymous namespace.
"Comment array not newline terminated");
do {
// Emit a line of comments.
- OS.PadToColumn(MAI.getCommentColumn());
+ OS.PadToColumn(MAI->getCommentColumn());
size_t Position = Comments.find('\n');
- OS << MAI.getCommentString() << ' ' << Comments.substr(0, Position) << '\n';
+ OS << MAI->getCommentString() << ' ' << Comments.substr(0, Position) <<'\n';
Comments = Comments.substr(Position+1);
} while (!Comments.empty());
return Value & ((uint64_t) (int64_t) -1 >> (64 - Bytes * 8));
}
-void MCAsmStreamer::ChangeSection(const MCSection *Section) {
+void MCAsmStreamer::ChangeSection(const MCSection *Section,
+ const MCExpr *Subsection) {
assert(Section && "Cannot switch to a null section!");
- Section->PrintSwitchToSection(MAI, OS);
+ Section->PrintSwitchToSection(*MAI, OS, Subsection);
}
void MCAsmStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
MCStreamer::EmitLabel(Symbol);
- OS << *Symbol << MAI.getLabelSuffix();
+ OS << *Symbol << MAI->getLabelSuffix();
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitDebugLabel(MCSymbol *Symbol) {
+ assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
+ MCStreamer::EmitDebugLabel(Symbol);
+
+ OS << *Symbol << MAI->getDebugLabelSuffix();
EmitEOL();
}
void MCAsmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
switch (Flag) {
- default: assert(0 && "Invalid flag!");
case MCAF_SyntaxUnified: OS << "\t.syntax unified"; break;
case MCAF_SubsectionsViaSymbols: OS << ".subsections_via_symbols"; break;
- case MCAF_Code16: OS << "\t.code\t16"; break;
- case MCAF_Code32: OS << "\t.code\t32"; break;
+ case MCAF_Code16: OS << '\t'<< MAI->getCode16Directive();break;
+ case MCAF_Code32: OS << '\t'<< MAI->getCode32Directive();break;
+ case MCAF_Code64: OS << '\t'<< MAI->getCode64Directive();break;
+ }
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitLinkerOptions(ArrayRef<std::string> Options) {
+ assert(!Options.empty() && "At least one option is required!");
+ OS << "\t.linker_option \"" << Options[0] << '"';
+ for (ArrayRef<std::string>::iterator it = Options.begin() + 1,
+ ie = Options.end(); it != ie; ++it) {
+ OS << ", " << '"' << *it << '"';
+ }
+ OS << "\n";
+}
+
+void MCAsmStreamer::EmitDataRegion(MCDataRegionType Kind) {
+ if (!MAI->doesSupportDataRegionDirectives())
+ return;
+ switch (Kind) {
+ case MCDR_DataRegion: OS << "\t.data_region"; break;
+ case MCDR_DataRegionJT8: OS << "\t.data_region jt8"; break;
+ case MCDR_DataRegionJT16: OS << "\t.data_region jt16"; break;
+ case MCDR_DataRegionJT32: OS << "\t.data_region jt32"; break;
+ case MCDR_DataRegionEnd: OS << "\t.end_data_region"; break;
}
EmitEOL();
}
// MCSymbols when they have spaces in them.
OS << "\t.thumb_func";
// Only Mach-O hasSubsectionsViaSymbols()
- if (MAI.hasSubsectionsViaSymbols())
+ if (MAI->hasSubsectionsViaSymbols())
OS << '\t' << *Func;
EmitEOL();
}
void MCAsmStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
const MCSymbol *LastLabel,
- const MCSymbol *Label) {
- EmitDwarfSetLineAddr(LineDelta, Label,
- getContext().getTargetAsmInfo().getPointerSize());
+ const MCSymbol *Label,
+ unsigned PointerSize) {
+ EmitDwarfSetLineAddr(LineDelta, Label, PointerSize);
}
void MCAsmStreamer::EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
}
-void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
+bool MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
MCSymbolAttr Attribute) {
switch (Attribute) {
- case MCSA_Invalid: assert(0 && "Invalid symbol attribute");
+ case MCSA_Invalid: llvm_unreachable("Invalid symbol attribute");
case MCSA_ELF_TypeFunction: /// .type _foo, STT_FUNC # aka @function
case MCSA_ELF_TypeIndFunction: /// .type _foo, STT_GNU_IFUNC
case MCSA_ELF_TypeObject: /// .type _foo, STT_OBJECT # aka @object
case MCSA_ELF_TypeCommon: /// .type _foo, STT_COMMON # aka @common
case MCSA_ELF_TypeNoType: /// .type _foo, STT_NOTYPE # aka @notype
case MCSA_ELF_TypeGnuUniqueObject: /// .type _foo, @gnu_unique_object
- assert(MAI.hasDotTypeDotSizeDirective() && "Symbol Attr not supported");
+ if (!MAI->hasDotTypeDotSizeDirective())
+ return false; // Symbol attribute not supported
OS << "\t.type\t" << *Symbol << ','
- << ((MAI.getCommentString()[0] != '@') ? '@' : '%');
+ << ((MAI->getCommentString()[0] != '@') ? '@' : '%');
switch (Attribute) {
- default: assert(0 && "Unknown ELF .type");
+ default: return false;
case MCSA_ELF_TypeFunction: OS << "function"; break;
case MCSA_ELF_TypeIndFunction: OS << "gnu_indirect_function"; break;
case MCSA_ELF_TypeObject: OS << "object"; break;
case MCSA_ELF_TypeGnuUniqueObject: OS << "gnu_unique_object"; break;
}
EmitEOL();
- return;
+ return true;
case MCSA_Global: // .globl/.global
- OS << MAI.getGlobalDirective();
+ OS << MAI->getGlobalDirective();
FlagMap[Symbol] |= EHGlobal;
break;
case MCSA_Hidden: OS << "\t.hidden\t"; break;
FlagMap[Symbol] |= EHWeakDefinition;
break;
// .weak_reference
- case MCSA_WeakReference: OS << MAI.getWeakRefDirective(); break;
+ case MCSA_WeakReference: OS << MAI->getWeakRefDirective(); break;
case MCSA_WeakDefAutoPrivate: OS << "\t.weak_def_can_be_hidden\t"; break;
}
OS << *Symbol;
EmitEOL();
+
+ return true;
}
void MCAsmStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
EmitEOL();
}
+void MCAsmStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
+ OS << "\t.secrel32\t" << *Symbol << '\n';
+ EmitEOL();
+}
+
void MCAsmStreamer::EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {
- assert(MAI.hasDotTypeDotSizeDirective());
+ assert(MAI->hasDotTypeDotSizeDirective());
OS << "\t.size\t" << *Symbol << ", " << *Value << '\n';
}
void MCAsmStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) {
+ // Common symbols do not belong to any actual section.
+ AssignSection(Symbol, NULL);
+
OS << "\t.comm\t" << *Symbol << ',' << Size;
if (ByteAlignment != 0) {
- if (MAI.getCOMMDirectiveAlignmentIsInBytes())
+ if (MAI->getCOMMDirectiveAlignmentIsInBytes())
OS << ',' << ByteAlignment;
else
OS << ',' << Log2_32(ByteAlignment);
///
/// @param Symbol - The common symbol to emit.
/// @param Size - The size of the common symbol.
-void MCAsmStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {
- assert(MAI.hasLCOMMDirective() && "Doesn't have .lcomm, can't emit it!");
+void MCAsmStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+ unsigned ByteAlign) {
+ // Common symbols do not belong to any actual section.
+ AssignSection(Symbol, NULL);
+
OS << "\t.lcomm\t" << *Symbol << ',' << Size;
+ if (ByteAlign > 1) {
+ switch (MAI->getLCOMMDirectiveAlignmentType()) {
+ case LCOMM::NoAlignment:
+ llvm_unreachable("alignment not supported on .lcomm!");
+ case LCOMM::ByteAlignment:
+ OS << ',' << ByteAlign;
+ break;
+ case LCOMM::Log2Alignment:
+ assert(isPowerOf2_32(ByteAlign) && "alignment must be a power of 2");
+ OS << ',' << Log2_32(ByteAlign);
+ break;
+ }
+ }
EmitEOL();
}
void MCAsmStreamer::EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
- unsigned Size, unsigned ByteAlignment) {
+ uint64_t Size, unsigned ByteAlignment) {
+ if (Symbol)
+ AssignSection(Symbol, Section);
+
// Note: a .zerofill directive does not switch sections.
OS << ".zerofill ";
// e.g. _a.
void MCAsmStreamer::EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
uint64_t Size, unsigned ByteAlignment) {
+ AssignSection(Symbol, Section);
+
assert(Symbol != NULL && "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.
}
-void MCAsmStreamer::EmitBytes(StringRef Data, unsigned AddrSpace) {
- assert(getCurrentSection() && "Cannot emit contents before setting section!");
+void MCAsmStreamer::EmitBytes(StringRef Data) {
+ assert(getCurrentSection().first &&
+ "Cannot emit contents before setting section!");
if (Data.empty()) return;
if (Data.size() == 1) {
- OS << MAI.getData8bitsDirective(AddrSpace);
+ OS << MAI->getData8bitsDirective();
OS << (unsigned)(unsigned char)Data[0];
EmitEOL();
return;
// If the data ends with 0 and the target supports .asciz, use it, otherwise
// use .ascii
- if (MAI.getAscizDirective() && Data.back() == 0) {
- OS << MAI.getAscizDirective();
+ if (MAI->getAscizDirective() && Data.back() == 0) {
+ OS << MAI->getAscizDirective();
Data = Data.substr(0, Data.size()-1);
} else {
- OS << MAI.getAsciiDirective();
+ OS << MAI->getAsciiDirective();
}
- OS << ' ';
PrintQuotedString(Data, OS);
EmitEOL();
}
-void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size,
- unsigned AddrSpace) {
- EmitValue(MCConstantExpr::Create(Value, getContext()), Size, AddrSpace);
+void MCAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size) {
+ EmitValue(MCConstantExpr::Create(Value, getContext()), Size);
}
-void MCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace) {
- assert(getCurrentSection() && "Cannot emit contents before setting section!");
+void MCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size) {
+ assert(getCurrentSection().first &&
+ "Cannot emit contents before setting section!");
const char *Directive = 0;
switch (Size) {
default: break;
- case 1: Directive = MAI.getData8bitsDirective(AddrSpace); break;
- case 2: Directive = MAI.getData16bitsDirective(AddrSpace); break;
- case 4: Directive = MAI.getData32bitsDirective(AddrSpace); break;
+ case 1: Directive = MAI->getData8bitsDirective(); break;
+ case 2: Directive = MAI->getData16bitsDirective(); break;
+ case 4: Directive = MAI->getData32bitsDirective(); break;
case 8:
- Directive = MAI.getData64bitsDirective(AddrSpace);
+ Directive = MAI->getData64bitsDirective();
// If the target doesn't support 64-bit data, emit as two 32-bit halves.
if (Directive) break;
int64_t IntValue;
if (!Value->EvaluateAsAbsolute(IntValue))
report_fatal_error("Don't know how to emit this value.");
- if (getContext().getTargetAsmInfo().isLittleEndian()) {
- EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace);
- EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace);
+ if (MAI->isLittleEndian()) {
+ EmitIntValue((uint32_t)(IntValue >> 0 ), 4);
+ EmitIntValue((uint32_t)(IntValue >> 32), 4);
} else {
- EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace);
- EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace);
+ EmitIntValue((uint32_t)(IntValue >> 32), 4);
+ EmitIntValue((uint32_t)(IntValue >> 0 ), 4);
}
return;
}
EmitULEB128IntValue(IntValue);
return;
}
- assert(MAI.hasLEB128() && "Cannot print a .uleb");
+ assert(MAI->hasLEB128() && "Cannot print a .uleb");
OS << ".uleb128 " << *Value;
EmitEOL();
}
EmitSLEB128IntValue(IntValue);
return;
}
- assert(MAI.hasLEB128() && "Cannot print a .sleb");
+ assert(MAI->hasLEB128() && "Cannot print a .sleb");
OS << ".sleb128 " << *Value;
EmitEOL();
}
+void MCAsmStreamer::EmitGPRel64Value(const MCExpr *Value) {
+ assert(MAI->getGPRel64Directive() != 0);
+ OS << MAI->getGPRel64Directive() << *Value;
+ EmitEOL();
+}
+
void MCAsmStreamer::EmitGPRel32Value(const MCExpr *Value) {
- assert(MAI.getGPRel32Directive() != 0);
- OS << MAI.getGPRel32Directive() << *Value;
+ assert(MAI->getGPRel32Directive() != 0);
+ OS << MAI->getGPRel32Directive() << *Value;
EmitEOL();
}
/// EmitFill - Emit NumBytes bytes worth of the value specified by
/// FillValue. This implements directives such as '.space'.
-void MCAsmStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue,
- unsigned AddrSpace) {
+void MCAsmStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue) {
if (NumBytes == 0) return;
- if (AddrSpace == 0)
- if (const char *ZeroDirective = MAI.getZeroDirective()) {
- OS << ZeroDirective << NumBytes;
- if (FillValue != 0)
- OS << ',' << (int)FillValue;
- EmitEOL();
- return;
- }
+ if (const char *ZeroDirective = MAI->getZeroDirective()) {
+ OS << ZeroDirective << NumBytes;
+ if (FillValue != 0)
+ OS << ',' << (int)FillValue;
+ EmitEOL();
+ return;
+ }
// Emit a byte at a time.
- MCStreamer::EmitFill(NumBytes, FillValue, AddrSpace);
+ MCStreamer::EmitFill(NumBytes, FillValue);
}
void MCAsmStreamer::EmitValueToAlignment(unsigned ByteAlignment, int64_t Value,
if (isPowerOf2_32(ByteAlignment)) {
switch (ValueSize) {
default: llvm_unreachable("Invalid size for machine code value!");
- case 1: OS << MAI.getAlignDirective(); break;
+ case 1: OS << MAI->getAlignDirective(); break;
// FIXME: use MAI for this!
case 2: OS << ".p2alignw "; break;
case 4: OS << ".p2alignl "; break;
case 8: llvm_unreachable("Unsupported alignment size!");
}
- if (MAI.getAlignmentIsInBytes())
+ if (MAI->getAlignmentIsInBytes())
OS << ByteAlignment;
else
OS << Log2_32(ByteAlignment);
void MCAsmStreamer::EmitCodeAlignment(unsigned ByteAlignment,
unsigned MaxBytesToEmit) {
// Emit with a text fill value.
- EmitValueToAlignment(ByteAlignment, MAI.getTextAlignFillValue(),
+ EmitValueToAlignment(ByteAlignment, MAI->getTextAlignFillValue(),
1, MaxBytesToEmit);
}
-void MCAsmStreamer::EmitValueToOffset(const MCExpr *Offset,
+bool MCAsmStreamer::EmitValueToOffset(const MCExpr *Offset,
unsigned char Value) {
// FIXME: Verify that Offset is associated with the current section.
OS << ".org " << *Offset << ", " << (unsigned) Value;
EmitEOL();
+ return false;
}
void MCAsmStreamer::EmitFileDirective(StringRef Filename) {
- assert(MAI.hasSingleParameterDotFile());
+ assert(MAI->hasSingleParameterDotFile());
OS << "\t.file\t";
PrintQuotedString(Filename, OS);
EmitEOL();
}
-bool MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo, StringRef Filename){
+bool MCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
+ StringRef Filename, unsigned CUID) {
+ if (!UseDwarfDirectory && !Directory.empty()) {
+ if (sys::path::is_absolute(Filename))
+ return EmitDwarfFileDirective(FileNo, "", Filename, CUID);
+
+ SmallString<128> FullPathName = Directory;
+ sys::path::append(FullPathName, Filename);
+ return EmitDwarfFileDirective(FileNo, "", FullPathName, CUID);
+ }
+
if (UseLoc) {
OS << "\t.file\t" << FileNo << ' ';
+ if (!Directory.empty()) {
+ PrintQuotedString(Directory, OS);
+ OS << ' ';
+ }
PrintQuotedString(Filename, OS);
EmitEOL();
+ // All .file will belong to a single CUID.
+ CUID = 0;
}
- return this->MCStreamer::EmitDwarfFileDirective(FileNo, Filename);
+ return this->MCStreamer::EmitDwarfFileDirective(FileNo, Directory, Filename,
+ CUID);
}
void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
OS << "discriminator " << Discriminator;
if (IsVerboseAsm) {
- OS.PadToColumn(MAI.getCommentColumn());
- OS << MAI.getCommentString() << ' ' << FileName << ':'
+ OS.PadToColumn(MAI->getCommentColumn());
+ OS << MAI->getCommentString() << ' ' << FileName << ':'
<< Line << ':' << Column;
}
EmitEOL();
}
+void MCAsmStreamer::EmitIdent(StringRef IdentString) {
+ assert(MAI->hasIdentDirective() && ".ident directive not supported");
+ OS << "\t.ident\t";
+ PrintQuotedString(IdentString, OS);
+ EmitEOL();
+}
+
void MCAsmStreamer::EmitCFISections(bool EH, bool Debug) {
MCStreamer::EmitCFISections(EH, Debug);
EmitEOL();
}
-void MCAsmStreamer::EmitCFIStartProc() {
- MCStreamer::EmitCFIStartProc();
-
- if (!UseCFI)
+void MCAsmStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
+ if (!UseCFI) {
+ RecordProcStart(Frame);
return;
+ }
OS << "\t.cfi_startproc";
EmitEOL();
}
-void MCAsmStreamer::EmitCFIEndProc() {
- MCStreamer::EmitCFIEndProc();
-
- if (!UseCFI)
+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;
OS << "\t.cfi_endproc";
EmitEOL();
}
void MCAsmStreamer::EmitRegisterName(int64_t Register) {
- if (InstPrinter) {
- const TargetAsmInfo &asmInfo = getContext().getTargetAsmInfo();
- unsigned LLVMRegister = asmInfo.getLLVMRegNum(Register, true);
+ if (InstPrinter && !MAI->useDwarfRegNumForCFI()) {
+ const MCRegisterInfo *MRI = getContext().getRegisterInfo();
+ unsigned LLVMRegister = MRI->getLLVMRegNum(Register, true);
InstPrinter->printRegName(OS, LLVMRegister);
} else {
OS << Register;
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);
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();
// data block is visible.
MCWin64EHUnwindInfo *CurFrame = getCurrentW64UnwindInfo();
StringRef suffix=MCWin64EHUnwindEmitter::GetSectionSuffix(CurFrame->Function);
- const MCSection *xdataSect =
- getContext().getTargetAsmInfo().getWin64EHTableSection(suffix);
+ const MCSection *xdataSect = getWin64EHTableSection(suffix, getContext());
if (xdataSect)
SwitchSectionNoChange(xdataSect);
}
}
- // FIXME: Node the fixup comments for Thumb2 are completely bogus since the
+ // FIXME: Note the fixup comments for Thumb2 are completely bogus since the
// high order halfword of a 32-bit Thumb2 instruction is emitted first.
OS << "encoding: [";
for (unsigned i = 0, e = Code.size(); i != e; ++i) {
unsigned Bit = (Code[i] >> j) & 1;
unsigned FixupBit;
- if (getContext().getTargetAsmInfo().isLittleEndian())
+ if (MAI->isLittleEndian())
FixupBit = i * 8 + j;
else
FixupBit = i * 8 + (7-j);
}
}
-void MCAsmStreamer::EmitFnStart() {
- OS << "\t.fnstart";
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitFnEnd() {
- OS << "\t.fnend";
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitCantUnwind() {
- OS << "\t.cantunwind";
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitHandlerData() {
- OS << "\t.handlerdata";
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitPersonality(const MCSymbol *Personality) {
- OS << "\t.personality " << Personality->getName();
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) {
- OS << "\t.setfp\t";
- InstPrinter->printRegName(OS, FpReg);
- OS << ", ";
- InstPrinter->printRegName(OS, SpReg);
- if (Offset)
- OS << ", #" << Offset;
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitPad(int64_t Offset) {
- OS << "\t.pad\t#" << Offset;
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList,
- bool isVector) {
- assert(RegList.size() && "RegList should not be empty");
- if (isVector)
- OS << "\t.vsave\t{";
- else
- OS << "\t.save\t{";
-
- InstPrinter->printRegName(OS, RegList[0]);
-
- for (unsigned i = 1, e = RegList.size(); i != e; ++i) {
- OS << ", ";
- InstPrinter->printRegName(OS, RegList[i]);
- }
-
- OS << "}";
- EmitEOL();
-}
-
void MCAsmStreamer::EmitInstruction(const MCInst &Inst) {
- assert(getCurrentSection() && "Cannot emit contents before setting section!");
+ assert(getCurrentSection().first &&
+ "Cannot emit contents before setting section!");
// Show the encoding in a comment if we have a code emitter.
if (Emitter)
// Show the MCInst if enabled.
if (ShowInst) {
- Inst.dump_pretty(GetCommentOS(), &MAI, InstPrinter.get(), "\n ");
+ Inst.dump_pretty(GetCommentOS(), MAI, InstPrinter.get(), "\n ");
GetCommentOS() << "\n";
}
// If we have an AsmPrinter, use that to print, otherwise print the MCInst.
if (InstPrinter)
- InstPrinter->printInst(&Inst, OS);
+ InstPrinter->printInst(&Inst, OS, "");
else
- Inst.print(OS, &MAI);
+ Inst.print(OS, MAI);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitBundleAlignMode(unsigned AlignPow2) {
+ OS << "\t.bundle_align_mode " << AlignPow2;
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitBundleLock(bool AlignToEnd) {
+ OS << "\t.bundle_lock";
+ if (AlignToEnd)
+ OS << " align_to_end";
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitBundleUnlock() {
+ OS << "\t.bundle_unlock";
EmitEOL();
}
/// EmitRawText - If this file is backed by an assembly streamer, this dumps
/// the specified string in the output .s file. This capability is
/// indicated by the hasRawTextSupport() predicate.
-void MCAsmStreamer::EmitRawText(StringRef String) {
+void MCAsmStreamer::EmitRawTextImpl(StringRef String) {
if (!String.empty() && String.back() == '\n')
String = String.substr(0, String.size()-1);
OS << String;
EmitEOL();
}
-void MCAsmStreamer::Finish() {
+void MCAsmStreamer::FinishImpl() {
+ // FIXME: This header is duplicated with MCObjectStreamer
// Dump out the dwarf file & directory tables and line tables.
+ const MCSymbol *LineSectionSymbol = NULL;
if (getContext().hasDwarfFiles() && !UseLoc)
- MCDwarfFileTable::Emit(this);
-
- if (!UseCFI)
- EmitFrames(false);
-}
-
-//===----------------------------------------------------------------------===//
-/// MCLSDADecoderAsmStreamer - This is identical to the MCAsmStreamer, but
-/// outputs a description of the LSDA in a human readable format.
-///
-namespace {
-
-class MCLSDADecoderAsmStreamer : public MCAsmStreamer {
- const MCSymbol *PersonalitySymbol;
- const MCSymbol *LSDASymbol;
- bool InLSDA;
- bool ReadingULEB128;
-
- uint64_t BytesRead;
- uint64_t ActionTableBytes;
- uint64_t LSDASize;
-
- SmallVector<char, 2> ULEB128Value;
- std::vector<int64_t> LSDAEncoding;
- std::vector<const MCExpr*> Assignments;
-
- /// GetULEB128Value - A helper function to convert the value in the
- /// ULEB128Value vector into a uint64_t.
- uint64_t GetULEB128Value(SmallVectorImpl<char> &ULEB128Value) {
- uint64_t Val = 0;
- for (unsigned i = 0, e = ULEB128Value.size(); i != e; ++i)
- Val |= (ULEB128Value[i] & 0x7F) << (7 * i);
- return Val;
- }
-
- /// ResetState - Reset the state variables.
- void ResetState() {
- PersonalitySymbol = 0;
- LSDASymbol = 0;
- LSDASize = 0;
- BytesRead = 0;
- ActionTableBytes = 0;
- InLSDA = false;
- ReadingULEB128 = false;
- ULEB128Value.clear();
- LSDAEncoding.clear();
- Assignments.clear();
- }
-
- void EmitEHTableDescription();
-
- const char *DecodeDWARFEncoding(unsigned Encoding) {
- switch (Encoding) {
- case dwarf::DW_EH_PE_absptr: return "absptr";
- case dwarf::DW_EH_PE_omit: return "omit";
- case dwarf::DW_EH_PE_pcrel: return "pcrel";
- case dwarf::DW_EH_PE_udata4: return "udata4";
- case dwarf::DW_EH_PE_udata8: return "udata8";
- case dwarf::DW_EH_PE_sdata4: return "sdata4";
- case dwarf::DW_EH_PE_sdata8: return "sdata8";
- case dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_udata4: return "pcrel udata4";
- case dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_sdata4: return "pcrel sdata4";
- case dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_udata8: return "pcrel udata8";
- case dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_sdata8: return "pcrel sdata8";
- case dwarf::DW_EH_PE_indirect|dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_udata4:
- return "indirect pcrel udata4";
- case dwarf::DW_EH_PE_indirect|dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_sdata4:
- return "indirect pcrel sdata4";
- case dwarf::DW_EH_PE_indirect|dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_udata8:
- return "indirect pcrel udata8";
- case dwarf::DW_EH_PE_indirect|dwarf::DW_EH_PE_pcrel|dwarf::DW_EH_PE_sdata8:
- return "indirect pcrel sdata8";
- }
-
- return "<unknown encoding>";
- }
-public:
- MCLSDADecoderAsmStreamer(MCContext &Context, formatted_raw_ostream &os,
- bool isVerboseAsm, bool useLoc, bool useCFI,
- MCInstPrinter *printer, MCCodeEmitter *emitter,
- TargetAsmBackend *asmbackend,
- bool showInst)
- : MCAsmStreamer(Context, os, isVerboseAsm, useLoc, useCFI,
- printer, emitter, asmbackend, showInst) {
- ResetState();
- }
- ~MCLSDADecoderAsmStreamer() {}
-
- virtual void Finish() {
- ResetState();
- MCAsmStreamer::Finish();
- }
-
- virtual void EmitLabel(MCSymbol *Symbol) {
- if (Symbol == LSDASymbol)
- InLSDA = true;
- MCAsmStreamer::EmitLabel(Symbol);
- }
- virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
- if (InLSDA)
- Assignments.push_back(Value);
- MCAsmStreamer::EmitAssignment(Symbol, Value);
- }
- virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
- virtual void EmitIntValue(uint64_t Value, unsigned Size,
- unsigned AddrSpace = 0);
- virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace);
- virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue,
- unsigned AddrSpace);
- virtual void EmitCFIPersonality(const MCSymbol *Sym, unsigned Encoding) {
- PersonalitySymbol = Sym;
- MCAsmStreamer::EmitCFIPersonality(Sym, Encoding);
- }
- virtual void EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
- LSDASymbol = Sym;
- MCAsmStreamer::EmitCFILsda(Sym, Encoding);
- }
-};
-
-} // end anonymous namespace
-
-void MCLSDADecoderAsmStreamer::EmitBytes(StringRef Data, unsigned AddrSpace) {
- if (InLSDA && Data.size() == 1) {
- LSDAEncoding.push_back((unsigned)(unsigned char)Data[0]);
- ++BytesRead;
-
- if (LSDAEncoding.size() == 4)
- // The fourth value tells us where the bottom of the type table is.
- LSDASize = BytesRead + LSDAEncoding[3];
- else if (LSDAEncoding.size() == 6)
- // The sixth value tells us where the start of the action table is.
- ActionTableBytes = BytesRead;
- }
+ LineSectionSymbol = MCDwarfFileTable::Emit(this);
- MCAsmStreamer::EmitBytes(Data, AddrSpace);
-}
-
-void MCLSDADecoderAsmStreamer::EmitIntValue(uint64_t Value, unsigned Size,
- unsigned AddrSpace) {
- if (!InLSDA)
- return MCAsmStreamer::EmitIntValue(Value, Size, AddrSpace);
-
- BytesRead += Size;
-
- // We place the LSDA into the LSDAEncoding vector for later analysis. If we
- // have a ULEB128, we read that in separate iterations through here and then
- // get its value.
- if (!ReadingULEB128) {
- LSDAEncoding.push_back(Value);
- int EncodingSize = LSDAEncoding.size();
-
- if (EncodingSize == 1 || EncodingSize == 3) {
- // The LPStart and TType encodings.
- if (Value != dwarf::DW_EH_PE_omit) {
- // The encoding is next and is a ULEB128 value.
- ReadingULEB128 = true;
- ULEB128Value.clear();
- } else {
- // The encoding was omitted. Put a 0 here as a placeholder.
- LSDAEncoding.push_back(0);
- }
- } else if (EncodingSize == 5) {
- // The next value is a ULEB128 value that tells us how long the call site
- // table is -- where the start of the action tab
- ReadingULEB128 = true;
- ULEB128Value.clear();
- }
-
- InLSDA = (LSDASize == 0 || BytesRead < LSDASize);
- } else {
- // We're reading a ULEB128. Make it so!
- ULEB128Value.push_back(Value);
-
- if ((Value & 0x80) == 0) {
- uint64_t Val = GetULEB128Value(ULEB128Value);
- LSDAEncoding.push_back(Val);
- ULEB128Value.clear();
- ReadingULEB128 = false;
-
- if (LSDAEncoding.size() == 4)
- // The fourth value tells us where the bottom of the type table is.
- LSDASize = BytesRead + LSDAEncoding[3];
- else if (LSDAEncoding.size() == 6)
- // The sixth value tells us where the start of the action table is.
- ActionTableBytes = BytesRead;
- }
- }
-
- MCAsmStreamer::EmitValueImpl(MCConstantExpr::Create(Value, getContext()),
- Size, AddrSpace);
-
- if (LSDASize != 0 && !InLSDA)
- EmitEHTableDescription();
-}
-
-void MCLSDADecoderAsmStreamer::EmitValueImpl(const MCExpr *Value,
- unsigned Size,
- unsigned AddrSpace) {
- if (InLSDA && LSDASize != 0) {
- assert(BytesRead + Size <= LSDASize && "EH table too small!");
-
- if (BytesRead > uint64_t(LSDAEncoding[5]) + ActionTableBytes)
- // Insert the type values.
- Assignments.push_back(Value);
-
- LSDAEncoding.push_back(Assignments.size());
- BytesRead += Size;
- InLSDA = (LSDASize == 0 || BytesRead < LSDASize);
- }
-
- MCAsmStreamer::EmitValueImpl(Value, Size, AddrSpace);
-
- if (LSDASize != 0 && !InLSDA)
- EmitEHTableDescription();
-}
-
-void MCLSDADecoderAsmStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue,
- unsigned AddrSpace) {
- if (InLSDA && ReadingULEB128) {
- for (uint64_t I = NumBytes; I != 0; --I)
- ULEB128Value.push_back(FillValue);
-
- BytesRead += NumBytes;
-
- if ((FillValue & 0x80) == 0) {
- uint64_t Val = GetULEB128Value(ULEB128Value);
- LSDAEncoding.push_back(Val);
- ULEB128Value.clear();
- ReadingULEB128 = false;
-
- if (LSDAEncoding.size() == 4)
- // The fourth value tells us where the bottom of the type table is.
- LSDASize = BytesRead + LSDAEncoding[3];
- else if (LSDAEncoding.size() == 6)
- // The sixth value tells us where the start of the action table is.
- ActionTableBytes = BytesRead;
- }
- }
-
- MCAsmStreamer::EmitFill(NumBytes, FillValue, AddrSpace);
-}
-
-/// EmitEHTableDescription - Emit a human readable version of the LSDA.
-void MCLSDADecoderAsmStreamer::EmitEHTableDescription() {
- assert(LSDAEncoding.size() > 6 && "Invalid LSDA!");
-
- // Emit header information.
- StringRef C = MAI.getCommentString();
-#define CMT OS << C << ' '
- CMT << "Exception Handling Table: " << LSDASymbol->getName() << "\n";
- CMT << " @LPStart Encoding: " << DecodeDWARFEncoding(LSDAEncoding[0]) << "\n";
- if (LSDAEncoding[1])
- CMT << "@LPStart: 0x" << LSDAEncoding[1] << "\n";
- CMT << " @TType Encoding: " << DecodeDWARFEncoding(LSDAEncoding[2]) << "\n";
- CMT << " @TType Base: " << LSDAEncoding[3] << " bytes\n";
- CMT << "@CallSite Encoding: " << DecodeDWARFEncoding(LSDAEncoding[4]) << "\n";
- CMT << "@Action Table Size: " << LSDAEncoding[5] << " bytes\n\n";
-
- bool isSjLjEH = (MAI.getExceptionHandlingType() == ExceptionHandling::SjLj);
-
- int64_t CallSiteTableSize = LSDAEncoding[5];
- unsigned CallSiteEntrySize;
- if (!isSjLjEH)
- CallSiteEntrySize = 4 + // Region start.
- 4 + // Region end.
- 4 + // Landing pad.
- 1; // TType index.
- else
- CallSiteEntrySize = 1 + // Call index.
- 1; // TType index.
-
- unsigned NumEntries = CallSiteTableSize / CallSiteEntrySize;
- assert(CallSiteTableSize % CallSiteEntrySize == 0 &&
- "The action table size is not a multiple of what it should be!");
- unsigned TTypeIdx = 5 + // Action table size index.
- (isSjLjEH ? 2 : 4) * NumEntries + // Action table entries.
- 1; // Just because.
-
- // Emit the action table.
- unsigned Action = 1;
- for (unsigned I = 6; I < TTypeIdx; ) {
- CMT << "Action " << Action++ << ":\n";
-
- // The beginning of the throwing region.
- uint64_t Idx = LSDAEncoding[I++];
-
- if (!isSjLjEH) {
- CMT << " A throw between "
- << *cast<MCBinaryExpr>(Assignments[Idx - 1])->getLHS() << " and ";
-
- // The end of the throwing region.
- Idx = LSDAEncoding[I++];
- OS << *cast<MCBinaryExpr>(Assignments[Idx - 1])->getLHS();
-
- // The landing pad.
- Idx = LSDAEncoding[I++];
- if (Idx) {
- OS << " jumps to "
- << *cast<MCBinaryExpr>(Assignments[Idx - 1])->getLHS()
- << " on an exception.\n";
- } else {
- OS << " does not have a landing pad.\n";
- ++I;
- continue;
- }
- } else {
- CMT << " A throw from call " << Idx << "\n";
- }
-
- // The index into the action table.
- Idx = LSDAEncoding[I++];
- if (!Idx) {
- CMT << " :cleanup:\n";
- continue;
- }
+ // If we are generating dwarf for assembly source files dump out the sections.
+ if (getContext().getGenDwarfForAssembly())
+ MCGenDwarfInfo::Emit(this, LineSectionSymbol);
- // A semi-graphical representation of what the different indexes are in the
- // loop below.
- //
- // Idx - Index into the action table.
- // Action - Index into the type table from the type table base.
- // Next - Offset from Idx to the next action type.
- //
- // Idx---.
- // |
- // v
- // [call site table] _1 _2 _3
- // TTypeIdx--> .........................
- // [action 1] _1 _2
- // [action 2] _1 _2
- // ...
- // [action n] _1 _2
- // [type m] ^
- // ... |
- // [type 1] `---Next
- //
-
- int Action = LSDAEncoding[TTypeIdx + Idx - 1];
- if ((Action & 0x40) != 0)
- // Ignore exception specifications.
- continue;
-
- // Emit the types that are caught by this exception.
- CMT << " For type(s): ";
- for (;;) {
- if ((Action & 0x40) != 0)
- // Ignore exception specifications.
- break;
-
- if (uint64_t Ty = LSDAEncoding[LSDAEncoding.size() - Action]) {
- OS << " " << *Assignments[Ty - 1];
-
- // Types can be chained together. Typically, it's a negative offset from
- // the current type to a different one in the type table.
- int Next = LSDAEncoding[TTypeIdx + Idx];
- if (Next == 0)
- break;
- if ((Next & 0x40) != 0)
- Next = (int)(signed char)(Next | 0x80);
- Idx += Next + 1;
- Action = LSDAEncoding[TTypeIdx + Idx - 1];
- continue;
- } else {
- OS << " :catchall:";
- }
- break;
- }
-
- OS << "\n";
- }
-
- OS << "\n";
- ResetState();
+ if (!UseCFI)
+ EmitFrames(AsmBackend.get(), false);
}
MCStreamer *llvm::createAsmStreamer(MCContext &Context,
+ MCTargetStreamer *TargetStreamer,
formatted_raw_ostream &OS,
- bool isVerboseAsm, bool useLoc,
- bool useCFI, MCInstPrinter *IP,
- MCCodeEmitter *CE, TargetAsmBackend *TAB,
+ bool isVerboseAsm, bool useLoc, bool useCFI,
+ bool useDwarfDirectory, MCInstPrinter *IP,
+ MCCodeEmitter *CE, MCAsmBackend *MAB,
bool ShowInst) {
- ExceptionHandling::ExceptionsType ET =
- Context.getAsmInfo().getExceptionHandlingType();
-
- if (useCFI && isVerboseAsm &&
- (ET == ExceptionHandling::SjLj || ET == ExceptionHandling::DwarfCFI))
- return new MCLSDADecoderAsmStreamer(Context, OS, isVerboseAsm, useLoc,
- useCFI, IP, CE, TAB, ShowInst);
-
- return new MCAsmStreamer(Context, OS, isVerboseAsm, useLoc, useCFI,
- IP, CE, TAB, ShowInst);
+ return new MCAsmStreamer(Context, TargetStreamer, OS, isVerboseAsm, useLoc,
+ useCFI, useDwarfDirectory, IP, CE, MAB, ShowInst);
}
projects / oota-llvm.git / blobdiff