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dda3f1317e
This starts merging MCSection and MCSectionData. There are a few issues with the current split between MCSection and MCSectionData. * It optimizes the the not as important case. We want the production of .o files to be really fast, but the split puts the information used for .o emission in a separate data structure. * The ELF/COFF/MachO hierarchy is not represented in MCSectionData, leading to some ad-hoc ways to represent the various flags. * It makes it harder to remember where each item is. The attached patch starts merging the two by moving the alignment from MCSectionData to MCSection. Most of the patch is actually just dropping 'const', since MCSectionData is mutable, but MCSection was not. llvm-svn: 237936
82 lines
2.6 KiB
C++
82 lines
2.6 KiB
C++
//===- MCWinCOFFStreamer.h - COFF 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_MCWINCOFFSTREAMER_H
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#define LLVM_MC_MCWINCOFFSTREAMER_H
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#include "llvm/MC/MCDirectives.h"
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#include "llvm/MC/MCObjectStreamer.h"
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namespace llvm {
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class MCAsmBackend;
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class MCContext;
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class MCCodeEmitter;
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class MCExpr;
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class MCInst;
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class MCSection;
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class MCSubtargetInfo;
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class MCSymbol;
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class StringRef;
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class raw_ostream;
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class raw_pwrite_stream;
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class MCWinCOFFStreamer : public MCObjectStreamer {
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public:
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MCWinCOFFStreamer(MCContext &Context, MCAsmBackend &MAB, MCCodeEmitter &CE,
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raw_pwrite_stream &OS);
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/// state management
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void reset() override {
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CurSymbol = nullptr;
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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 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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bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override;
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void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override;
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void BeginCOFFSymbolDef(MCSymbol const *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 EmitCOFFSectionIndex(MCSymbol const *Symbol) override;
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void EmitCOFFSecRel32(MCSymbol const *Symbol) override;
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void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) override;
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void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment) 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(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment) override;
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void EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment) override;
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void EmitFileDirective(StringRef Filename) override;
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void EmitIdent(StringRef IdentString) override;
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void EmitWinEHHandlerData() override;
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void FinishImpl() override;
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/// \}
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protected:
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const MCSymbol *CurSymbol;
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void EmitInstToData(const MCInst &Inst, const MCSubtargetInfo &STI) override;
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private:
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LLVM_ATTRIBUTE_NORETURN void FatalError(const Twine &Msg) const;
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};
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}
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#endif
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