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Diffstat (limited to 'include/llvm/CodeGen/TargetLoweringObjectFileImpl.h')
| -rw-r--r-- | include/llvm/CodeGen/TargetLoweringObjectFileImpl.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h b/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h new file mode 100644 index 0000000..87f1401 --- /dev/null +++ b/include/llvm/CodeGen/TargetLoweringObjectFileImpl.h @@ -0,0 +1,154 @@ +//==-- llvm/CodeGen/TargetLoweringObjectFileImpl.h - Object Info -*- C++ -*-==// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements classes used to handle lowerings specific to common +// object file formats. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CODEGEN_TARGETLOWERINGOBJECTFILEIMPL_H +#define LLVM_CODEGEN_TARGETLOWERINGOBJECTFILEIMPL_H + +#include "llvm/ADT/StringRef.h" +#include "llvm/MC/SectionKind.h" +#include "llvm/Target/TargetLoweringObjectFile.h" + +namespace llvm { + class MachineModuleInfo; + class Mangler; + class MCAsmInfo; + class MCExpr; + class MCSection; + class MCSectionMachO; + class MCSymbol; + class MCContext; + class GlobalValue; + class TargetMachine; + + +class TargetLoweringObjectFileELF : public TargetLoweringObjectFile { + bool UseInitArray; + +public: + virtual ~TargetLoweringObjectFileELF() {} + + void emitPersonalityValue(MCStreamer &Streamer, const TargetMachine &TM, + const MCSymbol *Sym) const override; + + /// Given a constant with the SectionKind, return a section that it should be + /// placed in. + const MCSection *getSectionForConstant(SectionKind Kind, + const Constant *C) const override; + + const MCSection *getExplicitSectionGlobal(const GlobalValue *GV, + SectionKind Kind, Mangler &Mang, + const TargetMachine &TM) const override; + + const MCSection *SelectSectionForGlobal(const GlobalValue *GV, + SectionKind Kind, Mangler &Mang, + const TargetMachine &TM) const override; + + /// Return an MCExpr to use for a reference to the specified type info global + /// variable from exception handling information. + const MCExpr * + getTTypeGlobalReference(const GlobalValue *GV, unsigned Encoding, + Mangler &Mang, const TargetMachine &TM, + MachineModuleInfo *MMI, + MCStreamer &Streamer) const override; + + // The symbol that gets passed to .cfi_personality. + MCSymbol *getCFIPersonalitySymbol(const GlobalValue *GV, Mangler &Mang, + const TargetMachine &TM, + MachineModuleInfo *MMI) const override; + + void InitializeELF(bool UseInitArray_); + const MCSection *getStaticCtorSection(unsigned Priority, + const MCSymbol *KeySym) const override; + const MCSection *getStaticDtorSection(unsigned Priority, + const MCSymbol *KeySym) const override; +}; + + + +class TargetLoweringObjectFileMachO : public TargetLoweringObjectFile { +public: + virtual ~TargetLoweringObjectFileMachO() {} + + /// Extract the dependent library name from a linker option string. Returns + /// StringRef() if the option does not specify a library. + StringRef getDepLibFromLinkerOpt(StringRef LinkerOption) const override; + + /// Emit the module flags that specify the garbage collection information. + void emitModuleFlags(MCStreamer &Streamer, + ArrayRef<Module::ModuleFlagEntry> ModuleFlags, + Mangler &Mang, const TargetMachine &TM) const override; + + bool isSectionAtomizableBySymbols(const MCSection &Section) const override; + + const MCSection * + SelectSectionForGlobal(const GlobalValue *GV, + SectionKind Kind, Mangler &Mang, + const TargetMachine &TM) const override; + + const MCSection * + getExplicitSectionGlobal(const GlobalValue *GV, + SectionKind Kind, Mangler &Mang, + const TargetMachine &TM) const override; + + const MCSection *getSectionForConstant(SectionKind Kind, + const Constant *C) const override; + + /// The mach-o version of this method defaults to returning a stub reference. + const MCExpr * + getTTypeGlobalReference(const GlobalValue *GV, unsigned Encoding, + Mangler &Mang, const TargetMachine &TM, + MachineModuleInfo *MMI, + MCStreamer &Streamer) const override; + + // The symbol that gets passed to .cfi_personality. + MCSymbol *getCFIPersonalitySymbol(const GlobalValue *GV, Mangler &Mang, + const TargetMachine &TM, + MachineModuleInfo *MMI) const override; +}; + + + +class TargetLoweringObjectFileCOFF : public TargetLoweringObjectFile { +public: + virtual ~TargetLoweringObjectFileCOFF() {} + + const MCSection * + getExplicitSectionGlobal(const GlobalValue *GV, + SectionKind Kind, Mangler &Mang, + const TargetMachine &TM) const override; + + const MCSection * + SelectSectionForGlobal(const GlobalValue *GV, + SectionKind Kind, Mangler &Mang, + const TargetMachine &TM) const override; + + /// Extract the dependent library name from a linker option string. Returns + /// StringRef() if the option does not specify a library. + StringRef getDepLibFromLinkerOpt(StringRef LinkerOption) const override; + + /// Emit Obj-C garbage collection and linker options. Only linker option + /// emission is implemented for COFF. + void emitModuleFlags(MCStreamer &Streamer, + ArrayRef<Module::ModuleFlagEntry> ModuleFlags, + Mangler &Mang, const TargetMachine &TM) const override; + + const MCSection *getStaticCtorSection(unsigned Priority, + const MCSymbol *KeySym) const override; + const MCSection *getStaticDtorSection(unsigned Priority, + const MCSymbol *KeySym) const override; +}; + +} // end namespace llvm + +#endif |