X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=include%2Fllvm%2FMC%2FMCObjectFileInfo.h;h=025a76a27af962ecaca99287a0d160d2891e450a;hp=5d5801f33dae4622d5476b1cfeb4efa9b4c95ef7;hb=7f9bc0986bd1365142eb6172e6e30b0ab90391f2;hpb=4cbcee16187ab07a70280fc10af327767325b848 diff --git a/include/llvm/MC/MCObjectFileInfo.h b/include/llvm/MC/MCObjectFileInfo.h index 5d5801f33da..025a76a27af 100644 --- a/include/llvm/MC/MCObjectFileInfo.h +++ b/include/llvm/MC/MCObjectFileInfo.h @@ -11,62 +11,65 @@ // //===----------------------------------------------------------------------===// -#ifndef LLVM_MC_MCBJECTFILEINFO_H -#define LLVM_MC_MCBJECTFILEINFO_H +#ifndef LLVM_MC_MCOBJECTFILEINFO_H +#define LLVM_MC_MCOBJECTFILEINFO_H -#include "llvm/MC/MCCodeGenInfo.h" -#include "llvm/ADT/StringRef.h" -#include "llvm/MC/SectionKind.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Support/CodeGen.h" namespace llvm { class MCContext; class MCSection; - class Triple; + class StringRef; -class MCObjectFileInfo { +class MCObjectFileInfo { protected: /// 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; - - /// PersonalityEncoding, LSDAEncoding, FDEEncoding, TTypeEncoding - Some - /// encoding values for EH. + + /// SupportsCompactUnwindWithoutEHFrame - True if the target object file + /// supports emitting a compact unwind section without an associated EH frame + /// section. + bool SupportsCompactUnwindWithoutEHFrame; + + /// PersonalityEncoding, LSDAEncoding, TTypeEncoding - Some encoding values + /// for EH. unsigned PersonalityEncoding; unsigned LSDAEncoding; - unsigned FDEEncoding; unsigned FDECFIEncoding; unsigned TTypeEncoding; - // Section flags for eh_frame + + /// Section flags for eh_frame + unsigned EHSectionType; unsigned EHSectionFlags; + /// CompactUnwindDwarfEHFrameOnly - Compact unwind encoding indicating that we + /// should emit only an EH frame. + unsigned CompactUnwindDwarfEHFrameOnly; + /// 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; @@ -74,7 +77,7 @@ protected: /// 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; @@ -84,14 +87,6 @@ protected: /// this is the section to emit them into. const MCSection *CompactUnwindSection; - /// DwarfAccelNamesSection, DwarfAccelObjCSection - /// If we use the DWARF accelerated hash tables then we want toe emit these - /// sections. - const MCSection *DwarfAccelNamesSection; - const MCSection *DwarfAccelObjCSection; - const MCSection *DwarfAccelNamespaceSection; - const MCSection *DwarfAccelTypesSection; - // Dwarf sections for debug info. If a target supports debug info, these must // be set. const MCSection *DwarfAbbrevSection; @@ -104,12 +99,40 @@ protected: const MCSection *DwarfLocSection; const MCSection *DwarfARangesSection; const MCSection *DwarfRangesSection; - const MCSection *DwarfMacroInfoSection; + // The pubnames section is no longer generated by default. The generation + // can be enabled by a compiler flag. + const MCSection *DwarfPubNamesSection; + + // DWARF5 Experimental Debug Info Sections + /// DwarfAccelNamesSection, DwarfAccelObjCSection, + /// DwarfAccelNamespaceSection, DwarfAccelTypesSection - + /// If we use the DWARF accelerated hash tables then we want to emit these + /// sections. + const MCSection *DwarfAccelNamesSection; + const MCSection *DwarfAccelObjCSection; + const MCSection *DwarfAccelNamespaceSection; + const MCSection *DwarfAccelTypesSection; + + /// These are used for the Fission separate debug information files. + const MCSection *DwarfInfoDWOSection; + const MCSection *DwarfTypesDWOSection; + const MCSection *DwarfAbbrevDWOSection; + const MCSection *DwarfStrDWOSection; + const MCSection *DwarfLineDWOSection; + const MCSection *DwarfLocDWOSection; + const MCSection *DwarfStrOffDWOSection; + const MCSection *DwarfAddrSection; + + /// Sections for newer gnu pubnames and pubtypes. + const MCSection *DwarfGnuPubNamesSection; + const MCSection *DwarfGnuPubTypesSection; + + const MCSection *COFFDebugSymbolsSection; // Extra TLS Variable Data section. If the target needs to put additional // information for a TLS variable, it'll go here. const MCSection *TLSExtraDataSection; - + /// TLSDataSection - Section directive for Thread Local data. /// ELF, MachO and COFF. const MCSection *TLSDataSection; // Defaults to ".tdata". @@ -119,6 +142,8 @@ protected: /// ELF and MachO only. const MCSection *TLSBSSSection; // Defaults to ".tbss". + /// StackMap section. + const MCSection *StackMapSection; /// EHFrameSection - EH frame section. It is initialized on demand so it /// can be overwritten (with uniquing). @@ -141,11 +166,11 @@ protected: /// Contains the source code name of the variable, visibility and a pointer /// to the initial value (.tdata or .tbss). const MCSection *TLSTLVSection; // Defaults to ".tlv". - + /// TLSThreadInitSection - Section for thread local data initialization /// functions. const MCSection *TLSThreadInitSection; // Defaults to ".thread_init_func". - + const MCSection *CStringSection; const MCSection *UStringSection; const MCSection *TextCoalSection; @@ -169,24 +194,26 @@ protected: public: void InitMCObjectFileInfo(StringRef TT, Reloc::Model RM, CodeModel::Model CM, MCContext &ctx); - - bool isFunctionEHFrameSymbolPrivate() const { - return IsFunctionEHFrameSymbolPrivate; - } + bool getSupportsWeakOmittedEHFrame() const { return SupportsWeakOmittedEHFrame; } + bool getSupportsCompactUnwindWithoutEHFrame() const { + return SupportsCompactUnwindWithoutEHFrame; + } bool getCommDirectiveSupportsAlignment() const { return CommDirectiveSupportsAlignment; } unsigned getPersonalityEncoding() const { return PersonalityEncoding; } unsigned getLSDAEncoding() const { return LSDAEncoding; } - unsigned getFDEEncoding(bool CFI) const { - return CFI ? FDECFIEncoding : FDEEncoding; - } + unsigned getFDEEncoding() const { return FDECFIEncoding; } unsigned getTTypeEncoding() const { return TTypeEncoding; } + unsigned getCompactUnwindDwarfEHFrameOnly() const { + return CompactUnwindDwarfEHFrameOnly; + } + const MCSection *getTextSection() const { return TextSection; } const MCSection *getDataSection() const { return DataSection; } const MCSection *getBSSSection() const { return BSSSection; } @@ -194,6 +221,27 @@ public: const MCSection *getCompactUnwindSection() const{ return CompactUnwindSection; } + 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 *getDwarfGnuPubNamesSection() const { + return DwarfGnuPubNamesSection; + } + const MCSection *getDwarfGnuPubTypesSection() const { + return DwarfGnuPubTypesSection; + } + 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; } + + // DWARF5 Experimental Debug Info Sections const MCSection *getDwarfAccelNamesSection() const { return DwarfAccelNamesSection; } @@ -206,27 +254,44 @@ public: const MCSection *getDwarfAccelTypesSection() const { return DwarfAccelTypesSection; } - 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 *getDwarfPubTypesSection() const{return DwarfPubTypesSection;} - const MCSection *getDwarfDebugInlineSection() const { - return DwarfDebugInlineSection; + const MCSection *getDwarfInfoDWOSection() const { + return DwarfInfoDWOSection; } - 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 *getDwarfTypesSection(uint64_t Hash) const; + const MCSection *getDwarfTypesDWOSection() const { + return DwarfTypesDWOSection; + } + const MCSection *getDwarfAbbrevDWOSection() const { + return DwarfAbbrevDWOSection; + } + const MCSection *getDwarfStrDWOSection() const { + return DwarfStrDWOSection; + } + const MCSection *getDwarfLineDWOSection() const { + return DwarfLineDWOSection; + } + const MCSection *getDwarfLocDWOSection() const { + return DwarfLocDWOSection; } + const MCSection *getDwarfStrOffDWOSection() const { + return DwarfStrOffDWOSection; + } + const MCSection *getDwarfAddrSection() const { + return DwarfAddrSection; + } + + const MCSection *getCOFFDebugSymbolsSection() const { + return COFFDebugSymbolsSection; + } + const MCSection *getTLSExtraDataSection() const { return TLSExtraDataSection; } const MCSection *getTLSDataSection() const { return TLSDataSection; } const MCSection *getTLSBSSSection() const { return TLSBSSSection; } + const MCSection *getStackMapSection() const { return StackMapSection; } + /// ELF specific sections. /// const MCSection *getDataRelSection() const { return DataRelSection; } @@ -291,12 +356,21 @@ public: return EHFrameSection; } -private: enum Environment { IsMachO, IsELF, IsCOFF }; + Environment getObjectFileType() const { + return Env; + } + + Reloc::Model getRelocM() const { + return RelocM; + } + +private: Environment Env; Reloc::Model RelocM; CodeModel::Model CMModel; MCContext *Ctx; + Triple TT; void InitMachOMCObjectFileInfo(Triple T); void InitELFMCObjectFileInfo(Triple T); @@ -305,6 +379,9 @@ private: /// InitEHFrameSection - Initialize EHFrameSection on demand. /// void InitEHFrameSection(); + +public: + const Triple &getTargetTriple() const { return TT; } }; } // end namespace llvm