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0c2c638633
Even though gas doesn't document it, it has been supported there for a very long time. This produces the 32 bit relative virtual address (aka image relative address) for a given symbol. ".rva foo" is essentially equal to ".long foo@imgrel". Differential Revision: https://reviews.llvm.org/D49821 llvm-svn: 338063
84 lines
2.8 KiB
C++
84 lines
2.8 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 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_pwrite_stream;
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class MCWinCOFFStreamer : public MCObjectStreamer {
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public:
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MCWinCOFFStreamer(MCContext &Context, std::unique_ptr<MCAsmBackend> MAB,
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std::unique_ptr<MCCodeEmitter> CE,
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std::unique_ptr<MCObjectWriter> OW);
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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, SMLoc Loc = SMLoc()) 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 EmitCOFFSafeSEH(MCSymbol const *Symbol) override;
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void EmitCOFFSymbolIndex(MCSymbol const *Symbol) override;
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void EmitCOFFSectionIndex(MCSymbol const *Symbol) override;
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void EmitCOFFSecRel32(MCSymbol const *Symbol, uint64_t Offset) override;
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void EmitCOFFImgRel32(MCSymbol const *Symbol, int64_t Offset) 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, SMLoc Loc = SMLoc()) 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 EmitIdent(StringRef IdentString) override;
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void EmitWinEHHandlerData(SMLoc Loc) 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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void Error(const Twine &Msg) const;
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};
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} // end namespace llvm
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#endif // LLVM_MC_MCWINCOFFSTREAMER_H
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