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https://github.com/c64scene-ar/llvm-6502.git
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7b06b7357a
suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but I'll get to it in the next patch. Fix up all callers of the affected functions. Make them pass said suffix to the function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132205 91177308-0d34-0410-b5e6-96231b3b80d8
243 lines
9.6 KiB
C++
243 lines
9.6 KiB
C++
//===-- llvm/Target/TargetLoweringObjectFile.h - Object Info ----*- 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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//
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// This file implements classes used to handle lowerings specific to common
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// object file formats.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TARGET_TARGETLOWERINGOBJECTFILE_H
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#define LLVM_TARGET_TARGETLOWERINGOBJECTFILE_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/MC/SectionKind.h"
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namespace llvm {
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class MachineModuleInfo;
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class Mangler;
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class MCAsmInfo;
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class MCContext;
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class MCExpr;
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class MCSection;
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class MCSectionMachO;
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class MCSymbol;
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class MCStreamer;
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class GlobalValue;
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class TargetMachine;
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class TargetLoweringObjectFile {
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MCContext *Ctx;
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TargetLoweringObjectFile(const TargetLoweringObjectFile&); // DO NOT IMPLEMENT
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void operator=(const TargetLoweringObjectFile&); // DO NOT IMPLEMENT
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protected:
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TargetLoweringObjectFile();
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/// TextSection - Section directive for standard text.
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///
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const MCSection *TextSection;
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/// DataSection - Section directive for standard data.
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///
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const MCSection *DataSection;
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/// BSSSection - Section that is default initialized to zero.
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const MCSection *BSSSection;
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/// ReadOnlySection - Section that is readonly and can contain arbitrary
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/// initialized data. Targets are not required to have a readonly section.
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/// If they don't, various bits of code will fall back to using the data
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/// section for constants.
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const MCSection *ReadOnlySection;
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/// StaticCtorSection - This section contains the static constructor pointer
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/// list.
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const MCSection *StaticCtorSection;
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/// StaticDtorSection - This section contains the static destructor pointer
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/// list.
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const MCSection *StaticDtorSection;
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/// LSDASection - If exception handling is supported by the target, this is
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/// the section the Language Specific Data Area information is emitted to.
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const MCSection *LSDASection;
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// Dwarf sections for debug info. If a target supports debug info, these must
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// be set.
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const MCSection *DwarfAbbrevSection;
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const MCSection *DwarfInfoSection;
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const MCSection *DwarfLineSection;
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const MCSection *DwarfFrameSection;
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const MCSection *DwarfPubNamesSection;
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const MCSection *DwarfPubTypesSection;
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const MCSection *DwarfDebugInlineSection;
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const MCSection *DwarfStrSection;
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const MCSection *DwarfLocSection;
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const MCSection *DwarfARangesSection;
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const MCSection *DwarfRangesSection;
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const MCSection *DwarfMacroInfoSection;
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// Extra TLS Variable Data section. If the target needs to put additional
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// information for a TLS variable, it'll go here.
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const MCSection *TLSExtraDataSection;
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/// CommDirectiveSupportsAlignment - True if .comm supports alignment. This
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/// is a hack for as long as we support 10.4 Tiger, whose assembler doesn't
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/// support alignment on comm.
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bool CommDirectiveSupportsAlignment;
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/// SupportsWeakEmptyEHFrame - True if target object file supports a
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/// weak_definition of constant 0 for an omitted EH frame.
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bool SupportsWeakOmittedEHFrame;
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/// IsFunctionEHFrameSymbolPrivate - This flag is set to true if the
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/// "EH_frame" symbol for EH information should be an assembler temporary (aka
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/// private linkage, aka an L or .L label) or false if it should be a normal
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/// non-.globl label. This defaults to true.
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bool IsFunctionEHFrameSymbolPrivate;
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public:
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MCContext &getContext() const { return *Ctx; }
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virtual ~TargetLoweringObjectFile();
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/// Initialize - this method must be called before any actual lowering is
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/// done. This specifies the current context for codegen, and gives the
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/// lowering implementations a chance to set up their default sections.
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virtual void Initialize(MCContext &ctx, const TargetMachine &TM) {
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Ctx = &ctx;
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}
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bool isFunctionEHFrameSymbolPrivate() const {
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return IsFunctionEHFrameSymbolPrivate;
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}
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bool getSupportsWeakOmittedEHFrame() const {
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return SupportsWeakOmittedEHFrame;
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}
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bool getCommDirectiveSupportsAlignment() const {
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return CommDirectiveSupportsAlignment;
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}
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const MCSection *getTextSection() const { return TextSection; }
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const MCSection *getDataSection() const { return DataSection; }
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const MCSection *getBSSSection() const { return BSSSection; }
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const MCSection *getStaticCtorSection() const { return StaticCtorSection; }
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const MCSection *getStaticDtorSection() const { return StaticDtorSection; }
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const MCSection *getLSDASection() const { return LSDASection; }
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virtual const MCSection *getEHFrameSection() const = 0;
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virtual void emitPersonalityValue(MCStreamer &Streamer,
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const TargetMachine &TM,
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const MCSymbol *Sym) const;
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const MCSection *getDwarfAbbrevSection() const { return DwarfAbbrevSection; }
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const MCSection *getDwarfInfoSection() const { return DwarfInfoSection; }
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const MCSection *getDwarfLineSection() const { return DwarfLineSection; }
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const MCSection *getDwarfFrameSection() const { return DwarfFrameSection; }
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const MCSection *getDwarfPubNamesSection() const{return DwarfPubNamesSection;}
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const MCSection *getDwarfPubTypesSection() const{return DwarfPubTypesSection;}
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const MCSection *getDwarfDebugInlineSection() const {
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return DwarfDebugInlineSection;
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}
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const MCSection *getDwarfStrSection() const { return DwarfStrSection; }
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const MCSection *getDwarfLocSection() const { return DwarfLocSection; }
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const MCSection *getDwarfARangesSection() const { return DwarfARangesSection;}
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const MCSection *getDwarfRangesSection() const { return DwarfRangesSection; }
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const MCSection *getDwarfMacroInfoSection() const {
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return DwarfMacroInfoSection;
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}
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const MCSection *getTLSExtraDataSection() const {
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return TLSExtraDataSection;
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}
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virtual const MCSection *getWin64EHFuncTableSection(StringRef suffix)const=0;
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virtual const MCSection *getWin64EHTableSection(StringRef suffix) const = 0;
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/// shouldEmitUsedDirectiveFor - This hook allows targets to selectively
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/// decide not to emit the UsedDirective for some symbols in llvm.used.
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/// FIXME: REMOVE this (rdar://7071300)
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virtual bool shouldEmitUsedDirectiveFor(const GlobalValue *GV,
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Mangler *) const {
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return GV != 0;
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}
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/// getSectionForConstant - Given a constant with the SectionKind, return a
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/// section that it should be placed in.
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virtual const MCSection *getSectionForConstant(SectionKind Kind) const;
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/// getKindForGlobal - Classify the specified global variable into a set of
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/// target independent categories embodied in SectionKind.
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static SectionKind getKindForGlobal(const GlobalValue *GV,
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const TargetMachine &TM);
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/// SectionForGlobal - This method computes the appropriate section to emit
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/// the specified global variable or function definition. This should not
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/// be passed external (or available externally) globals.
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const MCSection *SectionForGlobal(const GlobalValue *GV,
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SectionKind Kind, Mangler *Mang,
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const TargetMachine &TM) const;
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/// SectionForGlobal - This method computes the appropriate section to emit
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/// the specified global variable or function definition. This should not
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/// be passed external (or available externally) globals.
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const MCSection *SectionForGlobal(const GlobalValue *GV,
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Mangler *Mang,
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const TargetMachine &TM) const {
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return SectionForGlobal(GV, getKindForGlobal(GV, TM), Mang, TM);
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}
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/// getExplicitSectionGlobal - Targets should implement this method to assign
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/// a section to globals with an explicit section specfied. The
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/// implementation of this method can assume that GV->hasSection() is true.
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virtual const MCSection *
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getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
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Mangler *Mang, const TargetMachine &TM) const = 0;
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/// getSpecialCasedSectionGlobals - Allow the target to completely override
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/// section assignment of a global.
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virtual const MCSection *
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getSpecialCasedSectionGlobals(const GlobalValue *GV, Mangler *Mang,
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SectionKind Kind) const {
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return 0;
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}
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/// getExprForDwarfGlobalReference - Return an MCExpr to use for a reference
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/// to the specified global variable from exception handling information.
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///
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virtual const MCExpr *
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getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
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MachineModuleInfo *MMI, unsigned Encoding,
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MCStreamer &Streamer) const;
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// getCFIPersonalitySymbol - The symbol that gets passed to .cfi_personality.
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virtual MCSymbol *
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getCFIPersonalitySymbol(const GlobalValue *GV, Mangler *Mang,
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MachineModuleInfo *MMI) const;
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///
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const MCExpr *
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getExprForDwarfReference(const MCSymbol *Sym, unsigned Encoding,
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MCStreamer &Streamer) const;
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virtual unsigned getPersonalityEncoding() const;
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virtual unsigned getLSDAEncoding() const;
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virtual unsigned getFDEEncoding(bool CFI) const;
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virtual unsigned getTTypeEncoding() const;
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protected:
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virtual const MCSection *
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SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
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Mangler *Mang, const TargetMachine &TM) const;
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};
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} // end namespace llvm
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#endif
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