class MCELFStreamer : public MCObjectStreamer {
public:
- MCELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
- MCCodeEmitter *Emitter)
- : MCObjectStreamer(Context, TAB, OS, Emitter) {}
+ MCELFStreamer(MCContext &Context, MCTargetStreamer *TargetStreamer,
+ MCAsmBackend &TAB, raw_ostream &OS, MCCodeEmitter *Emitter)
+ : MCObjectStreamer(Context, TargetStreamer, TAB, OS, Emitter) {}
- MCELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
- MCCodeEmitter *Emitter, MCAssembler *Assembler)
- : MCObjectStreamer(Context, TAB, OS, Emitter, Assembler) {}
+ MCELFStreamer(MCContext &Context, MCTargetStreamer *TargetStreamer,
+ MCAsmBackend &TAB, raw_ostream &OS, MCCodeEmitter *Emitter,
+ MCAssembler *Assembler)
+ : MCObjectStreamer(Context, TargetStreamer, TAB, OS, Emitter, Assembler) {
+ }
virtual ~MCELFStreamer();
virtual void EmitFileDirective(StringRef Filename);
- virtual void EmitTCEntry(const MCSymbol &S);
-
virtual void EmitValueToAlignment(unsigned, int64_t, unsigned, unsigned);
virtual void Flush();
void SetSectionBss();
};
-MCELFStreamer *createMipsELFStreamer(MCContext &Context, MCAsmBackend &TAB,
- raw_ostream &OS, MCCodeEmitter *Emitter,
- bool RelaxAll, bool NoExecStack);
-
MCELFStreamer *createARMELFStreamer(MCContext &Context, MCAsmBackend &TAB,
raw_ostream &OS, MCCodeEmitter *Emitter,
bool RelaxAll, bool NoExecStack,
virtual void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame);
protected:
- MCObjectStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &_OS,
+ MCObjectStreamer(MCContext &Context, MCTargetStreamer *TargetStreamer,
+ MCAsmBackend &TAB, raw_ostream &_OS,
MCCodeEmitter *_Emitter);
- MCObjectStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &_OS,
- MCCodeEmitter *_Emitter, MCAssembler *_Assembler);
+ MCObjectStreamer(MCContext &Context, MCTargetStreamer *TargetStreamer,
+ MCAsmBackend &TAB, raw_ostream &_OS, MCCodeEmitter *_Emitter,
+ MCAssembler *_Assembler);
~MCObjectStreamer();
public:
class MCInst;
class MCInstPrinter;
class MCSection;
+class MCStreamer;
class MCSymbol;
class StringRef;
class Twine;
typedef std::pair<const MCSection *, const MCExpr *> MCSectionSubPair;
+/// Target specific streamer interface. This is used so that targets can
+/// implement support for target specific assembly directives.
+///
+/// If target foo wants to use this, it should implement 3 classes:
+/// * FooTargetStreamer : public MCTargetStreamer
+/// * FooTargetAsmSreamer : public FooTargetStreamer
+/// * FooTargetELFStreamer : public FooTargetStreamer
+///
+/// FooTargetStreamer should have a pure virtual method for each directive. For
+/// example, for a ".bar symbol_name" directive, it should have
+/// virtual emitBar(const MCSymbol &Symbol) = 0;
+///
+/// The FooTargetAsmSreamer and FooTargetELFStreamer classes implement the
+/// method. The assembly streamer just prints ".bar symbol_name". The object
+/// streamer does whatever is needed to implement .bar in the object file.
+///
+/// In the assembly printer and parser the target streamer can be used by
+/// calling getTargetStreamer and casting it to FooTargetStreamer:
+///
+/// MCTargetStreamer &TS = OutStreamer.getTargetStreamer();
+/// FooTargetStreamer &ATS = static_cast<FooTargetStreamer &>(TS);
+///
+/// The base classes FooTargetAsmSreamer and FooTargetELFStreamer should *never*
+/// be treated differently. Callers should always talk to a FooTargetStreamer.
+class MCTargetStreamer {
+protected:
+ OwningPtr<MCStreamer> Streamer;
+
+public:
+ virtual ~MCTargetStreamer();
+ void setStreamer(MCStreamer *S) { Streamer.reset(S); }
+};
+
+// FIXME: declared here because it is used from
+// lib/CodeGen/AsmPrinter/ARMException.cpp.
+class ARMTargetStreamer : public MCTargetStreamer {
+public:
+ virtual void emitFnStart() = 0;
+ virtual void emitFnEnd() = 0;
+ virtual void emitCantUnwind() = 0;
+ virtual void emitPersonality(const MCSymbol *Personality) = 0;
+ virtual void emitHandlerData() = 0;
+ virtual void emitSetFP(unsigned FpReg, unsigned SpReg,
+ int64_t Offset = 0) = 0;
+ virtual void emitPad(int64_t Offset) = 0;
+ virtual void emitRegSave(const SmallVectorImpl<unsigned> &RegList,
+ bool isVector) = 0;
+};
+
/// MCStreamer - Streaming machine code generation interface. This interface
/// is intended to provide a programatic interface that is very similar to the
/// level that an assembler .s file provides. It has callbacks to emit bytes,
///
class MCStreamer {
MCContext &Context;
+ MCTargetStreamer *TargetStreamer;
MCStreamer(const MCStreamer &) LLVM_DELETED_FUNCTION;
MCStreamer &operator=(const MCStreamer &) LLVM_DELETED_FUNCTION;
bool AutoInitSections;
protected:
- MCStreamer(MCContext &Ctx);
+ MCStreamer(MCContext &Ctx, MCTargetStreamer *TargetStreamer);
const MCExpr *BuildSymbolDiff(MCContext &Context, const MCSymbol *A,
const MCSymbol *B);
MCContext &getContext() const { return Context; }
+ MCTargetStreamer &getTargetStreamer() {
+ assert(TargetStreamer);
+ return *TargetStreamer;
+ }
+
unsigned getNumFrameInfos() { return FrameInfos.size(); }
const MCDwarfFrameInfo &getFrameInfo(unsigned i) { return FrameInfos[i]; }
virtual void EmitRawText(StringRef String);
void EmitRawText(const Twine &String);
- /// ARM-related methods.
- /// FIXME: Eventually we should have some "target MC streamer" and move
- /// these methods there.
- 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 isVector);
-
- /// Mips-related methods.
- virtual void emitMipsHackELFFlags(unsigned Flags);
- virtual void emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val);
-
- /// PPC-related methods.
- /// FIXME: Eventually replace it with some "target MC streamer" and move
- /// these methods there.
- virtual void EmitTCEntry(const MCSymbol &S);
-
/// Flush - Causes any cached state to be written out.
virtual void Flush() {}
///
/// \param ShowInst - Whether to show the MCInst representation inline with
/// the assembly.
-MCStreamer *createAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
- bool isVerboseAsm, bool useLoc, bool useCFI,
- bool useDwarfDirectory,
+MCStreamer *createAsmStreamer(MCContext &Ctx, MCTargetStreamer *TargetStreamer,
+ formatted_raw_ostream &OS, bool isVerboseAsm,
+ bool useLoc, bool useCFI, bool useDwarfDirectory,
MCInstPrinter *InstPrint = 0,
MCCodeEmitter *CE = 0, MCAsmBackend *TAB = 0,
bool ShowInst = false);
/// createELFStreamer - Create a machine code streamer which will generate
/// ELF format object files.
-MCStreamer *createELFStreamer(MCContext &Ctx, MCAsmBackend &TAB,
- raw_ostream &OS, MCCodeEmitter *CE, bool RelaxAll,
+MCStreamer *createELFStreamer(MCContext &Ctx, MCTargetStreamer *TargetStreamer,
+ MCAsmBackend &TAB, raw_ostream &OS,
+ MCCodeEmitter *CE, bool RelaxAll,
bool NoExecStack);
/// createPureStreamer - Create a machine code streamer which will generate
class MCRelocationInfo;
class MCTargetAsmParser;
class TargetMachine;
+ class MCTargetStreamer;
class TargetOptions;
class raw_ostream;
class formatted_raw_ostream;
- MCStreamer *createAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
- bool isVerboseAsm,
+ MCStreamer *createAsmStreamer(MCContext &Ctx,
+ MCTargetStreamer *TargetStreamer,
+ formatted_raw_ostream &OS, bool isVerboseAsm,
bool useLoc, bool useCFI,
bool useDwarfDirectory,
- MCInstPrinter *InstPrint,
- MCCodeEmitter *CE,
- MCAsmBackend *TAB,
- bool ShowInst);
+ MCInstPrinter *InstPrint, MCCodeEmitter *CE,
+ MCAsmBackend *TAB, bool ShowInst);
MCRelocationInfo *createMCRelocationInfo(StringRef TT, MCContext &Ctx);
/// MCSymbolizer, if registered (default = llvm::createMCSymbolizer)
MCSymbolizerCtorTy MCSymbolizerCtorFn;
+ static MCStreamer *
+ createDefaultAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
+ bool isVerboseAsm, bool useLoc, bool useCFI,
+ bool useDwarfDirectory, MCInstPrinter *InstPrint,
+ MCCodeEmitter *CE, MCAsmBackend *TAB,
+ bool ShowInst) {
+ return llvm::createAsmStreamer(Ctx, 0, OS, isVerboseAsm, useLoc, useCFI,
+ useDwarfDirectory, InstPrint, CE, TAB,
+ ShowInst);
+ }
+
public:
- Target() : AsmStreamerCtorFn(llvm::createAsmStreamer),
- MCRelocationInfoCtorFn(llvm::createMCRelocationInfo),
- MCSymbolizerCtorFn(llvm::createMCSymbolizer) {}
+ Target()
+ : AsmStreamerCtorFn(createDefaultAsmStreamer),
+ MCRelocationInfoCtorFn(llvm::createMCRelocationInfo),
+ MCSymbolizerCtorFn(llvm::createMCSymbolizer) {}
/// @name Target Information
/// @{
/// @param T - The target being registered.
/// @param Fn - A function to construct an MCStreamer for the target.
static void RegisterAsmStreamer(Target &T, Target::AsmStreamerCtorTy Fn) {
- if (T.AsmStreamerCtorFn == createAsmStreamer)
+ if (T.AsmStreamerCtorFn == Target::createDefaultAsmStreamer)
T.AsmStreamerCtorFn = Fn;
}
ARMException::~ARMException() {}
+ARMTargetStreamer &ARMException::getTargetStreamer() {
+ MCTargetStreamer &TS = Asm->OutStreamer.getTargetStreamer();
+ return static_cast<ARMTargetStreamer &>(TS);
+}
+
void ARMException::EndModule() {
}
/// BeginFunction - Gather pre-function exception information. Assumes it's
/// being emitted immediately after the function entry point.
void ARMException::BeginFunction(const MachineFunction *MF) {
- Asm->OutStreamer.EmitFnStart();
+ getTargetStreamer().emitFnStart();
if (Asm->MF->getFunction()->needsUnwindTableEntry())
Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_begin",
Asm->getFunctionNumber()));
/// EndFunction - Gather and emit post-function exception information.
///
void ARMException::EndFunction() {
+ ARMTargetStreamer &ATS = getTargetStreamer();
if (!Asm->MF->getFunction()->needsUnwindTableEntry())
- Asm->OutStreamer.EmitCantUnwind();
+ ATS.emitCantUnwind();
else {
Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_end",
Asm->getFunctionNumber()));
MMI->getPersonalities()[MMI->getPersonalityIndex()]) {
MCSymbol *PerSym = Asm->Mang->getSymbol(Personality);
Asm->OutStreamer.EmitSymbolAttribute(PerSym, MCSA_Global);
- Asm->OutStreamer.EmitPersonality(PerSym);
+ ATS.emitPersonality(PerSym);
}
// Emit .handlerdata directive.
- Asm->OutStreamer.EmitHandlerData();
+ ATS.emitHandlerData();
// Emit actual exception table
EmitExceptionTable();
}
}
- Asm->OutStreamer.EmitFnEnd();
+ ATS.emitFnEnd();
}
void ARMException::EmitTypeInfos(unsigned TTypeEncoding) {
class MCExpr;
class MCSymbol;
class Function;
+class ARMTargetStreamer;
class AsmPrinter;
//===----------------------------------------------------------------------===//
class ARMException : public DwarfException {
void EmitTypeInfos(unsigned TTypeEncoding);
+ ARMTargetStreamer &getTargetStreamer();
+
public:
//===--------------------------------------------------------------------===//
// Main entry points.
return Symbols.end();
}
- RecordStreamer(MCContext &Context) : MCStreamer(Context) {}
+ RecordStreamer(MCContext &Context) : MCStreamer(Context, 0) {}
virtual void EmitInstruction(const MCInst &Inst) {
// Scan for values.
#include <cctype>
using namespace llvm;
-static cl::opt<bool> PrintHackDirectives("print-hack-directives",
- cl::init(false), cl::Hidden);
-
namespace {
class MCAsmStreamer : public MCStreamer {
virtual void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame);
public:
- MCAsmStreamer(MCContext &Context, formatted_raw_ostream &os,
- bool isVerboseAsm, bool useLoc, bool useCFI,
- 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), UseLoc(useLoc), UseCFI(useCFI),
- UseDwarfDirectory(useDwarfDirectory) {
+ 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);
}
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);
-
- /// Mips-related methods.
- virtual void emitMipsHackELFFlags(unsigned Flags);
- virtual void emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val);
-
-
- virtual void EmitTCEntry(const MCSymbol &S);
-
virtual void EmitInstruction(const MCInst &Inst);
virtual void EmitBundleAlignMode(unsigned AlignPow2);
}
}
-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::emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) {
- if (!PrintHackDirectives)
- return;
-
- OS << "\t.mips_hack_stocg ";
- OS << Sym->getName();
- OS << ", ";
- OS << Val;
- EmitEOL();
-}
-
-void MCAsmStreamer::emitMipsHackELFFlags(unsigned Flags) {
- if (!PrintHackDirectives)
- return;
-
- OS << "\t.mips_hack_elf_flags 0x";
- OS.write_hex(Flags);
- EmitEOL();
-}
-
-void MCAsmStreamer::EmitTCEntry(const MCSymbol &S) {
- OS << "\t.tc ";
- OS << S.getName();
- OS << "[TC],";
- OS << S.getName();
- EmitEOL();
-}
-
void MCAsmStreamer::EmitInstruction(const MCInst &Inst) {
assert(getCurrentSection().first &&
"Cannot emit contents before setting section!");
}
MCStreamer *llvm::createAsmStreamer(MCContext &Context,
+ MCTargetStreamer *TargetStreamer,
formatted_raw_ostream &OS,
- bool isVerboseAsm, bool useLoc,
- bool useCFI, bool useDwarfDirectory,
- MCInstPrinter *IP, MCCodeEmitter *CE,
- MCAsmBackend *MAB, bool ShowInst) {
- return new MCAsmStreamer(Context, OS, isVerboseAsm, useLoc, useCFI,
- useDwarfDirectory, IP, CE, MAB, ShowInst);
+ bool isVerboseAsm, bool useLoc, bool useCFI,
+ bool useDwarfDirectory, MCInstPrinter *IP,
+ MCCodeEmitter *CE, MCAsmBackend *MAB,
+ bool ShowInst) {
+ return new MCAsmStreamer(Context, TargetStreamer, OS, isVerboseAsm, useLoc,
+ useCFI, useDwarfDirectory, IP, CE, MAB, ShowInst);
}
this->MCObjectStreamer::FinishImpl();
}
-void MCELFStreamer::EmitTCEntry(const MCSymbol &S) {
- // Creates a R_PPC64_TOC relocation
- MCObjectStreamer::EmitSymbolValue(&S, 8);
-}
-
-MCStreamer *llvm::createELFStreamer(MCContext &Context, MCAsmBackend &MAB,
- raw_ostream &OS, MCCodeEmitter *CE,
- bool RelaxAll, bool NoExecStack) {
- MCELFStreamer *S = new MCELFStreamer(Context, MAB, OS, CE);
+MCStreamer *llvm::createELFStreamer(MCContext &Context,
+ MCTargetStreamer *Streamer,
+ MCAsmBackend &MAB, raw_ostream &OS,
+ MCCodeEmitter *CE, bool RelaxAll,
+ bool NoExecStack) {
+ MCELFStreamer *S = new MCELFStreamer(Context, Streamer, MAB, OS, CE);
if (RelaxAll)
S->getAssembler().setRelaxAll(true);
if (NoExecStack)
public:
MCMachOStreamer(MCContext &Context, MCAsmBackend &MAB, raw_ostream &OS,
MCCodeEmitter *Emitter)
- : MCObjectStreamer(Context, MAB, OS, Emitter) {}
+ : MCObjectStreamer(Context, 0, MAB, OS, Emitter) {}
/// @name MCStreamer Interface
/// @{
class MCNullStreamer : public MCStreamer {
public:
- MCNullStreamer(MCContext &Context) : MCStreamer(Context) {}
+ MCNullStreamer(MCContext &Context) : MCStreamer(Context, 0) {}
/// @name MCStreamer Interface
/// @{
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
-MCObjectStreamer::MCObjectStreamer(MCContext &Context, MCAsmBackend &TAB,
- raw_ostream &OS, MCCodeEmitter *Emitter_)
- : MCStreamer(Context),
+MCObjectStreamer::MCObjectStreamer(MCContext &Context,
+ MCTargetStreamer *TargetStreamer,
+ MCAsmBackend &TAB, raw_ostream &OS,
+ MCCodeEmitter *Emitter_)
+ : MCStreamer(Context, TargetStreamer),
Assembler(new MCAssembler(Context, TAB, *Emitter_,
*TAB.createObjectWriter(OS), OS)),
CurSectionData(0) {}
-MCObjectStreamer::MCObjectStreamer(MCContext &Context, MCAsmBackend &TAB,
- raw_ostream &OS, MCCodeEmitter *Emitter_,
+MCObjectStreamer::MCObjectStreamer(MCContext &Context,
+ MCTargetStreamer *TargetStreamer,
+ MCAsmBackend &TAB, raw_ostream &OS,
+ MCCodeEmitter *Emitter_,
MCAssembler *_Assembler)
- : MCStreamer(Context), Assembler(_Assembler), CurSectionData(0) {}
+ : MCStreamer(Context, TargetStreamer), Assembler(_Assembler),
+ CurSectionData(0) {}
MCObjectStreamer::~MCObjectStreamer() {
delete &Assembler->getBackend();
public:
MCPureStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
MCCodeEmitter *Emitter)
- : MCObjectStreamer(Context, TAB, OS, Emitter) {}
+ : MCObjectStreamer(Context, 0, TAB, OS, Emitter) {}
/// @name MCStreamer Interface
/// @{
#include <cstdlib>
using namespace llvm;
-MCStreamer::MCStreamer(MCContext &Ctx)
- : Context(Ctx), EmitEHFrame(true), EmitDebugFrame(false),
- CurrentW64UnwindInfo(0), LastSymbol(0), AutoInitSections(false) {
+MCTargetStreamer::~MCTargetStreamer() {}
+
+MCStreamer::MCStreamer(MCContext &Ctx, MCTargetStreamer *TargetStreamer)
+ : Context(Ctx), TargetStreamer(TargetStreamer), EmitEHFrame(true),
+ EmitDebugFrame(false), CurrentW64UnwindInfo(0), LastSymbol(0),
+ AutoInitSections(false) {
SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
+ if (TargetStreamer)
+ TargetStreamer->setStreamer(this);
}
MCStreamer::~MCStreamer() {
llvm_unreachable("This file format doesn't support this directive");
}
-void MCStreamer::EmitFnStart() {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitFnEnd() {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitCantUnwind() {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitHandlerData() {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitPersonality(const MCSymbol *Personality) {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitPad(int64_t Offset) {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool) {
- errs() << "Not implemented yet\n";
- abort();
-}
-
-void MCStreamer::emitMipsHackELFFlags(unsigned Flags) {
-}
-
-void MCStreamer::emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) {
-}
-
-void MCStreamer::EmitTCEntry(const MCSymbol &S) {
- llvm_unreachable("Unsupported method");
-}
-
/// 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.
WinCOFFStreamer::WinCOFFStreamer(MCContext &Context, MCAsmBackend &MAB,
MCCodeEmitter &CE, raw_ostream &OS)
- : MCObjectStreamer(Context, MAB, OS, &CE), CurSymbol(NULL) {}
+ : MCObjectStreamer(Context, 0, MAB, OS, &CE), CurSymbol(NULL) {}
void WinCOFFStreamer::AddCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment, bool External) {
/// by MachO. Beware!
class AArch64ELFStreamer : public MCELFStreamer {
public:
- AArch64ELFStreamer(MCContext &Context, MCAsmBackend &TAB,
- raw_ostream &OS, MCCodeEmitter *Emitter)
- : MCELFStreamer(Context, TAB, OS, Emitter),
- MappingSymbolCounter(0), LastEMS(EMS_None) {
- }
+ AArch64ELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
+ MCCodeEmitter *Emitter)
+ : MCELFStreamer(Context, 0, TAB, OS, Emitter), MappingSymbolCounter(0),
+ LastEMS(EMS_None) {}
~AArch64ELFStreamer() {}
assert(MI->getFlag(MachineInstr::FrameSetup) &&
"Only instruction which are involved into frame setup code are allowed");
+ MCTargetStreamer &TS = OutStreamer.getTargetStreamer();
+ ARMTargetStreamer &ATS = static_cast<ARMTargetStreamer &>(TS);
const MachineFunction &MF = *MI->getParent()->getParent();
const TargetRegisterInfo *RegInfo = MF.getTarget().getRegisterInfo();
const ARMFunctionInfo &AFI = *MF.getInfo<ARMFunctionInfo>();
RegList.push_back(SrcReg);
break;
}
- OutStreamer.EmitRegSave(RegList, Opc == ARM::VSTMDDB_UPD);
+ ATS.emitRegSave(RegList, Opc == ARM::VSTMDDB_UPD);
} else {
// Changes of stack / frame pointer.
if (SrcReg == ARM::SP) {
if (DstReg == FramePtr && FramePtr != ARM::SP)
// Set-up of the frame pointer. Positive values correspond to "add"
// instruction.
- OutStreamer.EmitSetFP(FramePtr, ARM::SP, -Offset);
+ ATS.emitSetFP(FramePtr, ARM::SP, -Offset);
else if (DstReg == ARM::SP) {
// Change of SP by an offset. Positive values correspond to "sub"
// instruction.
- OutStreamer.EmitPad(Offset);
+ ATS.emitPad(Offset);
} else {
MI->dump();
llvm_unreachable("Unsupported opcode for unwinding information");
const MCInstrInfo &MII;
const MCRegisterInfo *MRI;
+ ARMTargetStreamer &getTargetStreamer() {
+ MCTargetStreamer &TS = getParser().getStreamer().getTargetStreamer();
+ return static_cast<ARMTargetStreamer &>(TS);
+ }
+
// Unwind directives state
SMLoc FnStartLoc;
SMLoc CantUnwindLoc;
}
FnStartLoc = L;
- getParser().getStreamer().EmitFnStart();
+ getTargetStreamer().emitFnStart();
return false;
}
// Reset the unwind directives parser state
resetUnwindDirectiveParserState();
-
- getParser().getStreamer().EmitFnEnd();
+ getTargetStreamer().emitFnEnd();
return false;
}
return true;
}
- getParser().getStreamer().EmitCantUnwind();
+ getTargetStreamer().emitCantUnwind();
return false;
}
Parser.Lex();
MCSymbol *PR = getParser().getContext().GetOrCreateSymbol(Name);
- getParser().getStreamer().EmitPersonality(PR);
+ getTargetStreamer().emitPersonality(PR);
return false;
}
return true;
}
- getParser().getStreamer().EmitHandlerData();
+ getTargetStreamer().emitHandlerData();
return false;
}
Offset = CE->getValue();
}
- getParser().getStreamer().EmitSetFP(static_cast<unsigned>(NewFPReg),
- static_cast<unsigned>(NewSPReg),
- Offset);
+ getTargetStreamer().emitSetFP(static_cast<unsigned>(NewFPReg),
+ static_cast<unsigned>(NewSPReg), Offset);
return false;
}
if (!CE)
return Error(ExLoc, "pad offset must be an immediate");
- getParser().getStreamer().EmitPad(CE->getValue());
+ getTargetStreamer().emitPad(CE->getValue());
return false;
}
if (IsVector && !Op->isDPRRegList())
return Error(L, ".vsave expects DPR registers");
- getParser().getStreamer().EmitRegSave(Op->getRegList(), IsVector);
+ getTargetStreamer().emitRegSave(Op->getRegList(), IsVector);
return false;
}
#include "llvm/MC/MCELFSymbolFlags.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCObjectStreamer.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCValue.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ELF.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
namespace {
+class ARMELFStreamer;
+
+class ARMTargetAsmStreamer : public ARMTargetStreamer {
+ formatted_raw_ostream &OS;
+ MCInstPrinter &InstPrinter;
+
+ 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 isVector);
+
+public:
+ ARMTargetAsmStreamer(formatted_raw_ostream &OS, MCInstPrinter &InstPrinter);
+};
+
+ARMTargetAsmStreamer::ARMTargetAsmStreamer(formatted_raw_ostream &OS,
+ MCInstPrinter &InstPrinter)
+ : OS(OS), InstPrinter(InstPrinter) {}
+void ARMTargetAsmStreamer::emitFnStart() { OS << "\t.fnstart\n"; }
+void ARMTargetAsmStreamer::emitFnEnd() { OS << "\t.fnend\n"; }
+void ARMTargetAsmStreamer::emitCantUnwind() { OS << "\t.cantunwind\n"; }
+void ARMTargetAsmStreamer::emitPersonality(const MCSymbol *Personality) {
+ OS << "\t.personality " << Personality->getName() << '\n';
+}
+void ARMTargetAsmStreamer::emitHandlerData() { OS << "\t.handlerdata\n"; }
+void ARMTargetAsmStreamer::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;
+ OS << '\n';
+}
+void ARMTargetAsmStreamer::emitPad(int64_t Offset) {
+ OS << "\t.pad\t#" << Offset << '\n';
+}
+void ARMTargetAsmStreamer::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 << "}\n";
+}
+
+class ARMTargetELFStreamer : public ARMTargetStreamer {
+ ARMELFStreamer &getStreamer();
+ 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 isVector);
+};
+
/// Extend the generic ELFStreamer class so that it can emit mapping symbols at
/// the appropriate points in the object files. These symbols are defined in the
/// ARM ELF ABI: infocenter.arm.com/help/topic/com.arm.../IHI0044D_aaelf.pdf.
/// by MachO. Beware!
class ARMELFStreamer : public MCELFStreamer {
public:
- ARMELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
- MCCodeEmitter *Emitter, bool IsThumb)
- : MCELFStreamer(Context, TAB, OS, Emitter), IsThumb(IsThumb),
- MappingSymbolCounter(0), LastEMS(EMS_None) {
+ friend class ARMTargetELFStreamer;
+
+ ARMELFStreamer(MCContext &Context, MCTargetStreamer *TargetStreamer,
+ MCAsmBackend &TAB, raw_ostream &OS, MCCodeEmitter *Emitter,
+ bool IsThumb)
+ : MCELFStreamer(Context, TargetStreamer, TAB, OS, Emitter),
+ IsThumb(IsThumb), MappingSymbolCounter(0), LastEMS(EMS_None) {
Reset();
}
~ARMELFStreamer() {}
// ARM exception handling directives
- virtual void EmitFnStart();
- virtual void EmitFnEnd();
- virtual void EmitCantUnwind();
- virtual void EmitPersonality(const MCSymbol *Per);
- virtual void EmitHandlerData();
- virtual void EmitSetFP(unsigned NewFpReg,
- unsigned NewSpReg,
- int64_t Offset = 0);
- virtual void EmitPad(int64_t Offset);
- virtual void EmitRegSave(const SmallVectorImpl<unsigned> &RegList,
- bool isVector);
+ void emitFnStart();
+ void emitFnEnd();
+ void emitCantUnwind();
+ void emitPersonality(const MCSymbol *Per);
+ void emitHandlerData();
+ void emitSetFP(unsigned NewFpReg, unsigned NewSpReg, int64_t Offset = 0);
+ void emitPad(int64_t Offset);
+ void emitRegSave(const SmallVectorImpl<unsigned> &RegList, bool isVector);
virtual void ChangeSection(const MCSection *Section,
const MCExpr *Subsection) {
};
} // end anonymous namespace
+ARMELFStreamer &ARMTargetELFStreamer::getStreamer() {
+ ARMELFStreamer *S = static_cast<ARMELFStreamer *>(Streamer.get());
+ return *S;
+}
+
+void ARMTargetELFStreamer::emitFnStart() { getStreamer().emitFnStart(); }
+void ARMTargetELFStreamer::emitFnEnd() { getStreamer().emitFnEnd(); }
+void ARMTargetELFStreamer::emitCantUnwind() { getStreamer().emitCantUnwind(); }
+void ARMTargetELFStreamer::emitPersonality(const MCSymbol *Personality) {
+ getStreamer().emitPersonality(Personality);
+}
+void ARMTargetELFStreamer::emitHandlerData() {
+ getStreamer().emitHandlerData();
+}
+void ARMTargetELFStreamer::emitSetFP(unsigned FpReg, unsigned SpReg,
+ int64_t Offset) {
+ getStreamer().emitSetFP(FpReg, SpReg, Offset);
+}
+void ARMTargetELFStreamer::emitPad(int64_t Offset) {
+ getStreamer().emitPad(Offset);
+}
+void ARMTargetELFStreamer::emitRegSave(const SmallVectorImpl<unsigned> &RegList,
+ bool isVector) {
+ getStreamer().emitRegSave(RegList, isVector);
+}
+
inline void ARMELFStreamer::SwitchToEHSection(const char *Prefix,
unsigned Type,
unsigned Flags,
UnwindOpAsm.Reset();
}
-// Add the R_ARM_NONE fixup at the same position
-void ARMELFStreamer::EmitPersonalityFixup(StringRef Name) {
- const MCSymbol *PersonalitySym = getContext().GetOrCreateSymbol(Name);
-
- const MCSymbolRefExpr *PersonalityRef =
- MCSymbolRefExpr::Create(PersonalitySym,
- MCSymbolRefExpr::VK_ARM_NONE,
- getContext());
-
- AddValueSymbols(PersonalityRef);
- MCDataFragment *DF = getOrCreateDataFragment();
- DF->getFixups().push_back(
- MCFixup::Create(DF->getContents().size(), PersonalityRef,
- MCFixup::getKindForSize(4, false)));
-}
-
-void ARMELFStreamer::EmitFnStart() {
+void ARMELFStreamer::emitFnStart() {
assert(FnStart == 0);
FnStart = getContext().CreateTempSymbol();
EmitLabel(FnStart);
}
-void ARMELFStreamer::EmitFnEnd() {
+void ARMELFStreamer::emitFnEnd() {
assert(FnStart && ".fnstart must preceeds .fnend");
// Emit unwind opcodes if there is no .handlerdata directive
Reset();
}
-void ARMELFStreamer::EmitCantUnwind() {
- CantUnwind = true;
+void ARMELFStreamer::emitCantUnwind() { CantUnwind = true; }
+
+// Add the R_ARM_NONE fixup at the same position
+void ARMELFStreamer::EmitPersonalityFixup(StringRef Name) {
+ const MCSymbol *PersonalitySym = getContext().GetOrCreateSymbol(Name);
+
+ const MCSymbolRefExpr *PersonalityRef = MCSymbolRefExpr::Create(
+ PersonalitySym, MCSymbolRefExpr::VK_ARM_NONE, getContext());
+
+ AddValueSymbols(PersonalityRef);
+ MCDataFragment *DF = getOrCreateDataFragment();
+ DF->getFixups().push_back(MCFixup::Create(DF->getContents().size(),
+ PersonalityRef,
+ MCFixup::getKindForSize(4, false)));
}
void ARMELFStreamer::FlushPendingOffset() {
EmitIntValue(0, 4);
}
-void ARMELFStreamer::EmitHandlerData() {
- FlushUnwindOpcodes(false);
-}
+void ARMELFStreamer::emitHandlerData() { FlushUnwindOpcodes(false); }
-void ARMELFStreamer::EmitPersonality(const MCSymbol *Per) {
+void ARMELFStreamer::emitPersonality(const MCSymbol *Per) {
Personality = Per;
UnwindOpAsm.setPersonality(Per);
}
-void ARMELFStreamer::EmitSetFP(unsigned NewFPReg,
- unsigned NewSPReg,
+void ARMELFStreamer::emitSetFP(unsigned NewFPReg, unsigned NewSPReg,
int64_t Offset) {
assert((NewSPReg == ARM::SP || NewSPReg == FPReg) &&
"the operand of .setfp directive should be either $sp or $fp");
FPOffset += Offset;
}
-void ARMELFStreamer::EmitPad(int64_t Offset) {
+void ARMELFStreamer::emitPad(int64_t Offset) {
// Track the change of the $sp offset
SPOffset -= Offset;
PendingOffset -= Offset;
}
-void ARMELFStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList,
+void ARMELFStreamer::emitRegSave(const SmallVectorImpl<unsigned> &RegList,
bool IsVector) {
// Collect the registers in the register list
unsigned Count = 0;
}
namespace llvm {
+
+MCStreamer *createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
+ bool isVerboseAsm, bool useLoc, bool useCFI,
+ bool useDwarfDirectory,
+ MCInstPrinter *InstPrint, MCCodeEmitter *CE,
+ MCAsmBackend *TAB, bool ShowInst) {
+ ARMTargetAsmStreamer *S = new ARMTargetAsmStreamer(OS, *InstPrint);
+
+ return llvm::createAsmStreamer(Ctx, S, OS, isVerboseAsm, useLoc, useCFI,
+ useDwarfDirectory, InstPrint, CE, TAB,
+ ShowInst);
+}
+
MCELFStreamer* createARMELFStreamer(MCContext &Context, MCAsmBackend &TAB,
raw_ostream &OS, MCCodeEmitter *Emitter,
bool RelaxAll, bool NoExecStack,
bool IsThumb) {
- ARMELFStreamer *S = new ARMELFStreamer(Context, TAB, OS, Emitter, IsThumb);
+ ARMTargetELFStreamer *TS = new ARMTargetELFStreamer();
+ ARMELFStreamer *S =
+ new ARMELFStreamer(Context, TS, TAB, OS, Emitter, IsThumb);
// FIXME: This should eventually end up somewhere else where more
// intelligent flag decisions can be made. For now we are just maintaining
// the status quo for ARM and setting EF_ARM_EABI_VER5 as the default.
TargetRegistry::RegisterMCObjectStreamer(TheARMTarget, createMCStreamer);
TargetRegistry::RegisterMCObjectStreamer(TheThumbTarget, createMCStreamer);
+ // Register the asm streamer.
+ TargetRegistry::RegisterAsmStreamer(TheARMTarget, createMCAsmStreamer);
+ TargetRegistry::RegisterAsmStreamer(TheThumbTarget, createMCAsmStreamer);
+
// Register the MCInstPrinter.
TargetRegistry::RegisterMCInstPrinter(TheARMTarget, createARMMCInstPrinter);
TargetRegistry::RegisterMCInstPrinter(TheThumbTarget, createARMMCInstPrinter);
#include <string>
namespace llvm {
+class formatted_raw_ostream;
class MCAsmBackend;
class MCCodeEmitter;
class MCContext;
class MCInstrInfo;
+class MCInstPrinter;
class MCObjectWriter;
class MCRegisterInfo;
class MCSubtargetInfo;
+class MCStreamer;
class MCRelocationInfo;
class StringRef;
class Target;
StringRef FS);
}
+MCStreamer *createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
+ bool isVerboseAsm, bool useLoc, bool useCFI,
+ bool useDwarfDirectory,
+ MCInstPrinter *InstPrint, MCCodeEmitter *CE,
+ MCAsmBackend *TAB, bool ShowInst);
+
MCCodeEmitter *createARMMCCodeEmitter(const MCInstrInfo &MCII,
const MCRegisterInfo &MRI,
const MCSubtargetInfo &STI,
#include "MCTargetDesc/MipsMCTargetDesc.h"
#include "MipsRegisterInfo.h"
+#include "MipsTargetStreamer.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
namespace {
class MipsAsmParser : public MCTargetAsmParser {
+ MipsTargetStreamer &getTargetStreamer() {
+ MCTargetStreamer &TS = Parser.getStreamer().getTargetStreamer();
+ return static_cast<MipsTargetStreamer &>(TS);
+ }
+
MCSubtargetInfo &STI;
MCAsmParser &Parser;
MipsAssemblerOptions Options;
if (Parser.parseAbsoluteExpression(Flags))
return TokError("unexpected token");
- Parser.getStreamer().emitMipsHackSTOCG(Sym, Flags);
+ getTargetStreamer().emitMipsHackSTOCG(Sym, Flags);
return false;
}
if (Parser.parseAbsoluteExpression(Flags))
return TokError("unexpected token");
- Parser.getStreamer().emitMipsHackELFFlags(Flags);
+ getTargetStreamer().emitMipsHackELFFlags(Flags);
return false;
}
MipsMCTargetDesc.cpp
MipsELFObjectWriter.cpp
MipsReginfo.cpp
- MipsELFStreamer.cpp
)
add_dependencies(LLVMMipsDesc MipsCommonTableGen)
+++ /dev/null
-//===-- MipsELFStreamer.cpp - MipsELFStreamer ---------------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===-------------------------------------------------------------------===//
-#include "MipsSubtarget.h"
-#include "llvm/MC/MCAssembler.h"
-#include "llvm/MC/MCELF.h"
-#include "llvm/MC/MCELFStreamer.h"
-#include "llvm/MC/MCELFSymbolFlags.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/Support/ELF.h"
-#include "llvm/Support/ErrorHandling.h"
-using namespace llvm;
-
-namespace {
-class MipsELFStreamer : public MCELFStreamer {
-public:
- MipsELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_ostream &OS,
- MCCodeEmitter *Emitter, bool RelaxAll, bool NoExecStack)
- : MCELFStreamer(Context, TAB, OS, Emitter) {}
-
- ~MipsELFStreamer() {}
- void emitMipsHackELFFlags(unsigned Flags);
- void emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val);
-};
-}
-
-namespace llvm {
-MCELFStreamer *createMipsELFStreamer(MCContext &Context, MCAsmBackend &TAB,
- raw_ostream &OS, MCCodeEmitter *Emitter,
- bool RelaxAll, bool NoExecStack) {
- MipsELFStreamer *S =
- new MipsELFStreamer(Context, TAB, OS, Emitter, RelaxAll, NoExecStack);
- return S;
-}
-} // namespace llvm
-
-void MipsELFStreamer::emitMipsHackELFFlags(unsigned Flags) {
- MCAssembler &MCA = getAssembler();
-
- MCA.setELFHeaderEFlags(Flags);
-}
-
-// Set a symbol's STO flags
-void MipsELFStreamer::emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) {
- MCSymbolData &Data = getOrCreateSymbolData(Sym);
- // The "other" values are stored in the last 6 bits of the second byte
- // The traditional defines for STO values assume the full byte and thus
- // the shift to pack it.
- MCELF::setOther(Data, Val >> 2);
-}
#include "MipsMCTargetDesc.h"
#include "InstPrinter/MipsInstPrinter.h"
#include "MipsMCAsmInfo.h"
+#include "MipsTargetStreamer.h"
#include "llvm/MC/MCCodeGenInfo.h"
+#include "llvm/MC/MCELF.h"
#include "llvm/MC/MCELFStreamer.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MachineLocation.h"
+#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetRegistry.h"
#define GET_INSTRINFO_MC_DESC
using namespace llvm;
+static cl::opt<bool> PrintHackDirectives("print-hack-directives",
+ cl::init(false), cl::Hidden);
+
static std::string ParseMipsTriple(StringRef TT, StringRef CPU) {
std::string MipsArchFeature;
size_t DashPosition = 0;
return new MipsInstPrinter(MAI, MII, MRI);
}
+namespace {
+class MipsTargetAsmStreamer : public MipsTargetStreamer {
+ formatted_raw_ostream &OS;
+
+public:
+ MipsTargetAsmStreamer(formatted_raw_ostream &OS);
+ virtual void emitMipsHackELFFlags(unsigned Flags);
+ virtual void emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val);
+};
+
+MipsTargetAsmStreamer::MipsTargetAsmStreamer(formatted_raw_ostream &OS)
+ : OS(OS) {}
+
+void MipsTargetAsmStreamer::emitMipsHackELFFlags(unsigned Flags) {
+ if (!PrintHackDirectives)
+ return;
+
+ OS << "\t.mips_hack_elf_flags 0x";
+ OS.write_hex(Flags);
+ OS << '\n';
+}
+void MipsTargetAsmStreamer::emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) {
+ if (!PrintHackDirectives)
+ return;
+
+ OS << "\t.mips_hack_stocg ";
+ OS << Sym->getName();
+ OS << ", ";
+ OS << Val;
+ OS << '\n';
+}
+
+class MipsTargetELFStreamer : public MipsTargetStreamer {
+public:
+ MCELFStreamer &getStreamer();
+ MipsTargetELFStreamer();
+ virtual void emitMipsHackELFFlags(unsigned Flags);
+ virtual void emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val);
+};
+
+MipsTargetELFStreamer::MipsTargetELFStreamer() {}
+
+MCELFStreamer &MipsTargetELFStreamer::getStreamer() {
+ return static_cast<MCELFStreamer &>(*Streamer);
+}
+
+void MipsTargetELFStreamer::emitMipsHackELFFlags(unsigned Flags) {
+ MCAssembler &MCA = getStreamer().getAssembler();
+ MCA.setELFHeaderEFlags(Flags);
+}
+
+// Set a symbol's STO flags
+void MipsTargetELFStreamer::emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) {
+ MCSymbolData &Data = getStreamer().getOrCreateSymbolData(Sym);
+ // The "other" values are stored in the last 6 bits of the second byte
+ // The traditional defines for STO values assume the full byte and thus
+ // the shift to pack it.
+ MCELF::setOther(Data, Val >> 2);
+}
+}
+
static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
- MCContext &Ctx, MCAsmBackend &MAB,
- raw_ostream &_OS,
- MCCodeEmitter *_Emitter,
- bool RelaxAll,
- bool NoExecStack) {
- Triple TheTriple(TT);
+ MCContext &Context, MCAsmBackend &MAB,
+ raw_ostream &OS, MCCodeEmitter *Emitter,
+ bool RelaxAll, bool NoExecStack) {
+ MipsTargetELFStreamer *S = new MipsTargetELFStreamer();
+ return createELFStreamer(Context, S, MAB, OS, Emitter, RelaxAll, NoExecStack);
+}
- return createMipsELFStreamer(Ctx, MAB, _OS, _Emitter, RelaxAll, NoExecStack);
+static MCStreamer *
+createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
+ bool isVerboseAsm, bool useLoc, bool useCFI,
+ bool useDwarfDirectory, MCInstPrinter *InstPrint,
+ MCCodeEmitter *CE, MCAsmBackend *TAB, bool ShowInst) {
+ MipsTargetAsmStreamer *S = new MipsTargetAsmStreamer(OS);
+
+ return llvm::createAsmStreamer(Ctx, S, OS, isVerboseAsm, useLoc, useCFI,
+ useDwarfDirectory, InstPrint, CE, TAB,
+ ShowInst);
}
extern "C" void LLVMInitializeMipsTargetMC() {
TargetRegistry::RegisterMCObjectStreamer(TheMips64elTarget,
createMCStreamer);
+ // Register the asm streamer.
+ TargetRegistry::RegisterAsmStreamer(TheMipsTarget, createMCAsmStreamer);
+ TargetRegistry::RegisterAsmStreamer(TheMipselTarget, createMCAsmStreamer);
+ TargetRegistry::RegisterAsmStreamer(TheMips64Target, createMCAsmStreamer);
+ TargetRegistry::RegisterAsmStreamer(TheMips64elTarget, createMCAsmStreamer);
+
// Register the asm backend.
TargetRegistry::RegisterMCAsmBackend(TheMipsTarget,
createMipsAsmBackendEB32);
#include "MipsAsmPrinter.h"
#include "MipsInstrInfo.h"
#include "MipsMCInstLower.h"
+#include "MipsTargetStreamer.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Twine.h"
using namespace llvm;
+MipsTargetStreamer &MipsAsmPrinter::getTargetStreamer() {
+ return static_cast<MipsTargetStreamer &>(OutStreamer.getTargetStreamer());
+}
+
bool MipsAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
// Initialize TargetLoweringObjectFile.
if (Subtarget->allowMixed16_32())
}
if (Subtarget->inMicroMipsMode())
- OutStreamer.emitMipsHackSTOCG(CurrentFnSym,
- (unsigned)ELF::STO_MIPS_MICROMIPS);
+ getTargetStreamer().emitMipsHackSTOCG(CurrentFnSym,
+ (unsigned)ELF::STO_MIPS_MICROMIPS);
OutStreamer.EmitLabel(CurrentFnSym);
}
}
-static void
-emitELFHeaderFlagsCG(MCStreamer &Streamer, const MipsSubtarget &Subtarget) {
+static void emitELFHeaderFlagsCG(MipsTargetStreamer &TargetStreamer,
+ const MipsSubtarget &Subtarget) {
// Update e_header flags
unsigned EFlags = 0;
else
llvm_unreachable("Unsupported relocation model for e_flags");
- Streamer.emitMipsHackELFFlags(EFlags);
+ TargetStreamer.emitMipsHackELFFlags(EFlags);
}
void MipsAsmPrinter::EmitEndOfAsmFile(Module &M) {
// Emit Mips ELF register info
Subtarget->getMReginfo().emitMipsReginfoSectionCG(
OutStreamer, getObjFileLowering(), *Subtarget);
- emitELFHeaderFlagsCG(OutStreamer, *Subtarget);
+ emitELFHeaderFlagsCG(getTargetStreamer(), *Subtarget);
}
void MipsAsmPrinter::PrintDebugValueComment(const MachineInstr *MI,
class MCStreamer;
class MachineInstr;
class MachineBasicBlock;
+class MipsTargetStreamer;
class Module;
class raw_ostream;
class LLVM_LIBRARY_VISIBILITY MipsAsmPrinter : public AsmPrinter {
+ MipsTargetStreamer &getTargetStreamer();
void EmitInstrWithMacroNoAT(const MachineInstr *MI);
--- /dev/null
+//===-- MipsTargetStreamer.h - Mips Target Streamer ------------*- C++ -*--===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MIPSTARGETSTREAMER_H
+#define MIPSTARGETSTREAMER_H
+
+#include "llvm/MC/MCStreamer.h"
+
+namespace llvm {
+class MipsTargetStreamer : public MCTargetStreamer {
+public:
+ virtual void emitMipsHackELFFlags(unsigned Flags) = 0;
+ virtual void emitMipsHackSTOCG(MCSymbol *Sym, unsigned Val) = 0;
+};
+}
+
+#endif
#include "PPCMCTargetDesc.h"
#include "InstPrinter/PPCInstPrinter.h"
#include "PPCMCAsmInfo.h"
+#include "PPCTargetStreamer.h"
#include "llvm/MC/MCCodeGenInfo.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MachineLocation.h"
#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/TargetRegistry.h"
#define GET_INSTRINFO_MC_DESC
return X;
}
+namespace {
+class PPCTargetAsmStreamer : public PPCTargetStreamer {
+ formatted_raw_ostream &OS;
+
+public:
+ PPCTargetAsmStreamer(formatted_raw_ostream &OS) : OS(OS) {}
+ virtual void emitTCEntry(const MCSymbol &S) {
+ OS << "\t.tc ";
+ OS << S.getName();
+ OS << "[TC],";
+ OS << S.getName();
+ OS << '\n';
+ }
+};
+
+class PPCTargetELFStreamer : public PPCTargetStreamer {
+ virtual void emitTCEntry(const MCSymbol &S) {
+ // Creates a R_PPC64_TOC relocation
+ Streamer->EmitSymbolValue(&S, 8);
+ }
+};
+}
+
// This is duplicated code. Refactor this.
static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
MCContext &Ctx, MCAsmBackend &MAB,
if (Triple(TT).isOSDarwin())
return createMachOStreamer(Ctx, MAB, OS, Emitter, RelaxAll);
- return createELFStreamer(Ctx, MAB, OS, Emitter, RelaxAll, NoExecStack);
+ PPCTargetStreamer *S = new PPCTargetELFStreamer();
+ return createELFStreamer(Ctx, S, MAB, OS, Emitter, RelaxAll, NoExecStack);
+}
+
+static MCStreamer *
+createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
+ bool isVerboseAsm, bool useLoc, bool useCFI,
+ bool useDwarfDirectory, MCInstPrinter *InstPrint,
+ MCCodeEmitter *CE, MCAsmBackend *TAB, bool ShowInst) {
+ PPCTargetStreamer *S = new PPCTargetAsmStreamer(OS);
+
+ return llvm::createAsmStreamer(Ctx, S, OS, isVerboseAsm, useLoc, useCFI,
+ useDwarfDirectory, InstPrint, CE, TAB,
+ ShowInst);
}
static MCInstPrinter *createPPCMCInstPrinter(const Target &T,
TargetRegistry::RegisterMCObjectStreamer(ThePPC64Target, createMCStreamer);
TargetRegistry::RegisterMCObjectStreamer(ThePPC64LETarget, createMCStreamer);
+ // Register the asm streamer.
+ TargetRegistry::RegisterAsmStreamer(ThePPC32Target, createMCAsmStreamer);
+ TargetRegistry::RegisterAsmStreamer(ThePPC64Target, createMCAsmStreamer);
+ TargetRegistry::RegisterAsmStreamer(ThePPC64LETarget, createMCAsmStreamer);
+
// Register the MCInstPrinter.
TargetRegistry::RegisterMCInstPrinter(ThePPC32Target, createPPCMCInstPrinter);
TargetRegistry::RegisterMCInstPrinter(ThePPC64Target, createPPCMCInstPrinter);
#include "MCTargetDesc/PPCMCExpr.h"
#include "PPCSubtarget.h"
#include "PPCTargetMachine.h"
+#include "PPCTargetStreamer.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
bool isPPC64 = TD->getPointerSizeInBits() == 64;
+ PPCTargetStreamer &TS =
+ static_cast<PPCTargetStreamer &>(OutStreamer.getTargetStreamer());
+
if (isPPC64 && !TOC.empty()) {
const MCSectionELF *Section = OutStreamer.getContext().getELFSection(".toc",
ELF::SHT_PROGBITS, ELF::SHF_WRITE | ELF::SHF_ALLOC,
E = TOC.end(); I != E; ++I) {
OutStreamer.EmitLabel(I->second);
MCSymbol *S = OutContext.GetOrCreateSymbol(I->first->getName());
- OutStreamer.EmitTCEntry(*S);
+ TS.emitTCEntry(*S);
}
}
--- /dev/null
+//===-- PPCTargetStreamer.h - PPC Target Streamer --s-----------*- C++ -*--===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef PPCTARGETSTREAMER_H
+#define PPCTARGETSTREAMER_H
+
+#include "llvm/MC/MCStreamer.h"
+
+namespace llvm {
+class PPCTargetStreamer : public MCTargetStreamer {
+public:
+ virtual void emitTCEntry(const MCSymbol &S) = 0;
+};
+}
+
+#endif
MCCodeEmitter *_Emitter,
bool RelaxAll,
bool NoExecStack) {
- return createELFStreamer(Ctx, MAB, _OS, _Emitter, false, false);
+ return createELFStreamer(Ctx, 0, MAB, _OS, _Emitter, false, false);
}
extern "C" void LLVMInitializeR600TargetMC() {
MCCodeEmitter *Emitter,
bool RelaxAll,
bool NoExecStack) {
- return createELFStreamer(Ctx, MAB, OS, Emitter, RelaxAll, NoExecStack);
+ return createELFStreamer(Ctx, 0, MAB, OS, Emitter, RelaxAll, NoExecStack);
}
extern "C" void LLVMInitializeSystemZTargetMC() {
if (TheTriple.isOSWindows() && TheTriple.getEnvironment() != Triple::ELF)
return createWinCOFFStreamer(Ctx, MAB, *_Emitter, _OS, RelaxAll);
- return createELFStreamer(Ctx, MAB, _OS, _Emitter, RelaxAll, NoExecStack);
+ return createELFStreamer(Ctx, 0, MAB, _OS, _Emitter, RelaxAll, NoExecStack);
}
static MCInstPrinter *createX86MCInstPrinter(const Target &T,
projects / oota-llvm.git / commitdiff