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de2d0196a2
Adds option /guard:cf to clang-cl and -cfguard to cc1 to emit function IDs of functions that have their address taken into a section named .gfids$y for compatibility with Microsoft's Control Flow Guard feature. The original patch didn't have the lit.local.cfg file that restricts the new test to x86, thus the new test was failing on the non-x86 bots. Differential Revision: https://reviews.llvm.org/D40531 The reverts r322008, which was a revert of r322005. This reverts commit a05b89f9aca70597dc79fe97bc49b50b51f525ba. llvm-svn: 322136
82 lines
2.7 KiB
C++
82 lines
2.7 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, 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, 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 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 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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