mirror of
https://github.com/c64scene-ar/llvm-6502.git
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c8a51b01aa
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236368 91177308-0d34-0410-b5e6-96231b3b80d8
126 lines
4.0 KiB
C++
126 lines
4.0 KiB
C++
//===- MCELFStreamer.h - MCStreamer ELF Object File Interface ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MC_MCELFSTREAMER_H
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#define LLVM_MC_MCELFSTREAMER_H
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#include "llvm/ADT/SmallPtrSet.h"
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#include "llvm/MC/MCDirectives.h"
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#include "llvm/MC/MCObjectStreamer.h"
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#include "llvm/MC/SectionKind.h"
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#include "llvm/Support/DataTypes.h"
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#include <vector>
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namespace llvm {
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class MCAsmBackend;
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class MCAssembler;
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class MCCodeEmitter;
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class MCExpr;
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class MCInst;
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class MCSymbol;
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class MCSymbolData;
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class raw_ostream;
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class MCELFStreamer : public MCObjectStreamer {
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public:
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MCELFStreamer(MCContext &Context, MCAsmBackend &TAB, raw_pwrite_stream &OS,
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MCCodeEmitter *Emitter)
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: MCObjectStreamer(Context, TAB, OS, Emitter), SeenIdent(false) {}
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~MCELFStreamer() override;
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/// state management
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void reset() override {
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SeenIdent = false;
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LocalCommons.clear();
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BindingExplicitlySet.clear();
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BundleGroups.clear();
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MCObjectStreamer::reset();
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}
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/// \name MCStreamer Interface
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/// @{
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void InitSections(bool NoExecStack) override;
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void ChangeSection(const MCSection *Section,
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const MCExpr *Subsection) override;
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void EmitLabel(MCSymbol *Symbol) override;
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void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
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void EmitThumbFunc(MCSymbol *Func) override;
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void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) override;
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bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override;
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void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override;
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void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment) override;
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void BeginCOFFSymbolDef(const MCSymbol *Symbol) override;
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void EmitCOFFSymbolStorageClass(int StorageClass) override;
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void EmitCOFFSymbolType(int Type) override;
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void EndCOFFSymbolDef() override;
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void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) override;
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void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment) override;
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void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = nullptr,
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uint64_t Size = 0, unsigned ByteAlignment = 0) override;
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void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
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uint64_t Size, unsigned ByteAlignment = 0) override;
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void EmitValueImpl(const MCExpr *Value, unsigned Size,
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const SMLoc &Loc = SMLoc()) override;
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void EmitFileDirective(StringRef Filename) override;
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void EmitIdent(StringRef IdentString) override;
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void EmitValueToAlignment(unsigned, int64_t, unsigned, unsigned) override;
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void Flush() override;
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void FinishImpl() override;
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void EmitBundleAlignMode(unsigned AlignPow2) override;
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void EmitBundleLock(bool AlignToEnd) override;
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void EmitBundleUnlock() override;
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private:
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void EmitInstToFragment(const MCInst &Inst, const MCSubtargetInfo &) override;
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void EmitInstToData(const MCInst &Inst, const MCSubtargetInfo &) override;
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void fixSymbolsInTLSFixups(const MCExpr *expr);
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/// \brief Merge the content of the fragment \p EF into the fragment \p DF.
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void mergeFragment(MCDataFragment *, MCEncodedFragmentWithFixups *);
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bool SeenIdent;
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struct LocalCommon {
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MCSymbolData *SD;
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uint64_t Size;
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unsigned ByteAlignment;
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};
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std::vector<LocalCommon> LocalCommons;
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SmallPtrSet<MCSymbol *, 16> BindingExplicitlySet;
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/// BundleGroups - The stack of fragments holding the bundle-locked
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/// instructions.
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llvm::SmallVector<MCDataFragment *, 4> BundleGroups;
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};
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MCELFStreamer *createARMELFStreamer(MCContext &Context, MCAsmBackend &TAB,
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raw_pwrite_stream &OS,
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MCCodeEmitter *Emitter, bool RelaxAll,
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bool IsThumb);
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} // end namespace llvm
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#endif
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