X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FTarget%2FTargetLoweringObjectFile.h;h=0df793dfd6071bfdb994ef21076bddbfaafae6fc;hb=b09c146b116359616f6cbd4c8b3328607e00ff42;hp=ec814ff04482eb25c975f86e7a4e890593686559;hpb=087aad44cb37b361e8ed84f197138b366c764f9a;p=oota-llvm.git diff --git a/include/llvm/Target/TargetLoweringObjectFile.h b/include/llvm/Target/TargetLoweringObjectFile.h index ec814ff0448..0df793dfd60 100644 --- a/include/llvm/Target/TargetLoweringObjectFile.h +++ b/include/llvm/Target/TargetLoweringObjectFile.h @@ -15,147 +15,52 @@ #ifndef LLVM_TARGET_TARGETLOWERINGOBJECTFILE_H #define LLVM_TARGET_TARGETLOWERINGOBJECTFILE_H -#include "llvm/ADT/StringRef.h" +#include "llvm/ADT/ArrayRef.h" +#include "llvm/MC/MCObjectFileInfo.h" #include "llvm/MC/SectionKind.h" +#include "llvm/Module.h" namespace llvm { class MachineModuleInfo; class Mangler; - class MCAsmInfo; class MCContext; class MCExpr; class MCSection; - class MCSectionMachO; class MCSymbol; + class MCSymbolRefExpr; class MCStreamer; class GlobalValue; class TargetMachine; -class TargetLoweringObjectFile { +class TargetLoweringObjectFile : public MCObjectFileInfo { MCContext *Ctx; - - TargetLoweringObjectFile(const TargetLoweringObjectFile&); // DO NOT IMPLEMENT - void operator=(const TargetLoweringObjectFile&); // DO NOT IMPLEMENT -protected: - - TargetLoweringObjectFile(); - - /// TextSection - Section directive for standard text. - /// - const MCSection *TextSection; - - /// DataSection - Section directive for standard data. - /// - const MCSection *DataSection; - - /// BSSSection - Section that is default initialized to zero. - const MCSection *BSSSection; - - /// ReadOnlySection - Section that is readonly and can contain arbitrary - /// initialized data. Targets are not required to have a readonly section. - /// If they don't, various bits of code will fall back to using the data - /// section for constants. - const MCSection *ReadOnlySection; - - /// StaticCtorSection - This section contains the static constructor pointer - /// list. - const MCSection *StaticCtorSection; - /// StaticDtorSection - This section contains the static destructor pointer - /// list. - const MCSection *StaticDtorSection; - - /// LSDASection - If exception handling is supported by the target, this is - /// the section the Language Specific Data Area information is emitted to. - const MCSection *LSDASection; - - // Dwarf sections for debug info. If a target supports debug info, these must - // be set. - const MCSection *DwarfAbbrevSection; - const MCSection *DwarfInfoSection; - const MCSection *DwarfLineSection; - const MCSection *DwarfFrameSection; - const MCSection *DwarfPubNamesSection; - const MCSection *DwarfPubTypesSection; - const MCSection *DwarfDebugInlineSection; - const MCSection *DwarfStrSection; - const MCSection *DwarfLocSection; - const MCSection *DwarfARangesSection; - const MCSection *DwarfRangesSection; - const MCSection *DwarfMacroInfoSection; - - // Extra TLS Variable Data section. If the target needs to put additional - // information for a TLS variable, it'll go here. - const MCSection *TLSExtraDataSection; - - /// CommDirectiveSupportsAlignment - True if .comm supports alignment. This - /// is a hack for as long as we support 10.4 Tiger, whose assembler doesn't - /// support alignment on comm. - bool CommDirectiveSupportsAlignment; - - /// SupportsWeakEmptyEHFrame - True if target object file supports a - /// weak_definition of constant 0 for an omitted EH frame. - bool SupportsWeakOmittedEHFrame; - - /// IsFunctionEHFrameSymbolPrivate - This flag is set to true if the - /// "EH_frame" symbol for EH information should be an assembler temporary (aka - /// private linkage, aka an L or .L label) or false if it should be a normal - /// non-.globl label. This defaults to true. - bool IsFunctionEHFrameSymbolPrivate; + TargetLoweringObjectFile( + const TargetLoweringObjectFile&) LLVM_DELETED_FUNCTION; + void operator=(const TargetLoweringObjectFile&) LLVM_DELETED_FUNCTION; + public: - MCContext &getContext() const { return *Ctx; } + + TargetLoweringObjectFile() : MCObjectFileInfo(), Ctx(0) {} virtual ~TargetLoweringObjectFile(); /// Initialize - this method must be called before any actual lowering is /// done. This specifies the current context for codegen, and gives the /// lowering implementations a chance to set up their default sections. - virtual void Initialize(MCContext &ctx, const TargetMachine &TM) { - Ctx = &ctx; - } + virtual void Initialize(MCContext &ctx, const TargetMachine &TM); - bool isFunctionEHFrameSymbolPrivate() const { - return IsFunctionEHFrameSymbolPrivate; - } - bool getSupportsWeakOmittedEHFrame() const { - return SupportsWeakOmittedEHFrame; - } - - bool getCommDirectiveSupportsAlignment() const { - return CommDirectiveSupportsAlignment; - } - - const MCSection *getTextSection() const { return TextSection; } - const MCSection *getDataSection() const { return DataSection; } - const MCSection *getBSSSection() const { return BSSSection; } - const MCSection *getStaticCtorSection() const { return StaticCtorSection; } - const MCSection *getStaticDtorSection() const { return StaticDtorSection; } - const MCSection *getLSDASection() const { return LSDASection; } - virtual const MCSection *getEHFrameSection() const = 0; virtual void emitPersonalityValue(MCStreamer &Streamer, const TargetMachine &TM, const MCSymbol *Sym) const; - const MCSection *getDwarfAbbrevSection() const { return DwarfAbbrevSection; } - const MCSection *getDwarfInfoSection() const { return DwarfInfoSection; } - const MCSection *getDwarfLineSection() const { return DwarfLineSection; } - const MCSection *getDwarfFrameSection() const { return DwarfFrameSection; } - const MCSection *getDwarfPubNamesSection() const{return DwarfPubNamesSection;} - const MCSection *getDwarfPubTypesSection() const{return DwarfPubTypesSection;} - const MCSection *getDwarfDebugInlineSection() const { - return DwarfDebugInlineSection; - } - const MCSection *getDwarfStrSection() const { return DwarfStrSection; } - const MCSection *getDwarfLocSection() const { return DwarfLocSection; } - const MCSection *getDwarfARangesSection() const { return DwarfARangesSection;} - const MCSection *getDwarfRangesSection() const { return DwarfRangesSection; } - const MCSection *getDwarfMacroInfoSection() const { - return DwarfMacroInfoSection; - } - const MCSection *getTLSExtraDataSection() const { - return TLSExtraDataSection; + + /// emitModuleFlags - Emit the module flags that the platform cares about. + virtual void emitModuleFlags(MCStreamer &, + ArrayRef, + Mangler *, const TargetMachine &) const { } - + /// shouldEmitUsedDirectiveFor - This hook allows targets to selectively /// decide not to emit the UsedDirective for some symbols in llvm.used. /// FIXME: REMOVE this (rdar://7071300) @@ -188,9 +93,7 @@ public: const TargetMachine &TM) const { return SectionForGlobal(GV, getKindForGlobal(GV, TM), Mang, TM); } - - - + /// getExplicitSectionGlobal - Targets should implement this method to assign /// a section to globals with an explicit section specfied. The /// implementation of this method can assume that GV->hasSection() is true. @@ -206,13 +109,13 @@ public: return 0; } - /// getExprForDwarfGlobalReference - Return an MCExpr to use for a reference + /// getTTypeGlobalReference - Return an MCExpr to use for a reference /// to the specified global variable from exception handling information. /// virtual const MCExpr * - getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang, - MachineModuleInfo *MMI, unsigned Encoding, - MCStreamer &Streamer) const; + getTTypeGlobalReference(const GlobalValue *GV, Mangler *Mang, + MachineModuleInfo *MMI, unsigned Encoding, + MCStreamer &Streamer) const; // getCFIPersonalitySymbol - The symbol that gets passed to .cfi_personality. virtual MCSymbol * @@ -221,13 +124,19 @@ public: /// const MCExpr * - getExprForDwarfReference(const MCSymbol *Sym, unsigned Encoding, - MCStreamer &Streamer) const; - - virtual unsigned getPersonalityEncoding() const; - virtual unsigned getLSDAEncoding() const; - virtual unsigned getFDEEncoding(bool CFI) const; - virtual unsigned getTTypeEncoding() const; + getTTypeReference(const MCSymbolRefExpr *Sym, unsigned Encoding, + MCStreamer &Streamer) const; + + virtual const MCSection * + getStaticCtorSection(unsigned Priority = 65535) const { + (void)Priority; + return StaticCtorSection; + } + virtual const MCSection * + getStaticDtorSection(unsigned Priority = 65535) const { + (void)Priority; + return StaticDtorSection; + } protected: virtual const MCSection *