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https://github.com/c64scene-ar/llvm-6502.git
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7521964d28
This starts merging MCSection and MCSectionData. There are a few issues with the current split between MCSection and MCSectionData. * It optimizes the the not as important case. We want the production of .o files to be really fast, but the split puts the information used for .o emission in a separate data structure. * The ELF/COFF/MachO hierarchy is not represented in MCSectionData, leading to some ad-hoc ways to represent the various flags. * It makes it harder to remember where each item is. The attached patch starts merging the two by moving the alignment from MCSectionData to MCSection. Most of the patch is actually just dropping 'const', since MCSectionData is mutable, but MCSection was not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237936 91177308-0d34-0410-b5e6-96231b3b80d8
68 lines
2.8 KiB
C++
68 lines
2.8 KiB
C++
//===-- X86TargetObjectFile.h - X86 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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#ifndef LLVM_LIB_TARGET_X86_X86TARGETOBJECTFILE_H
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#define LLVM_LIB_TARGET_X86_X86TARGETOBJECTFILE_H
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#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
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#include "llvm/Target/TargetLoweringObjectFile.h"
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namespace llvm {
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/// X86_64MachoTargetObjectFile - This TLOF implementation is used for Darwin
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/// x86-64.
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class X86_64MachoTargetObjectFile : public TargetLoweringObjectFileMachO {
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public:
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const MCExpr *
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getTTypeGlobalReference(const GlobalValue *GV, unsigned Encoding,
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Mangler &Mang, const TargetMachine &TM,
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MachineModuleInfo *MMI,
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MCStreamer &Streamer) const override;
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// getCFIPersonalitySymbol - The symbol that gets passed to
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// .cfi_personality.
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MCSymbol *getCFIPersonalitySymbol(const GlobalValue *GV, Mangler &Mang,
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const TargetMachine &TM,
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MachineModuleInfo *MMI) const override;
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const MCExpr *getIndirectSymViaGOTPCRel(const MCSymbol *Sym,
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const MCValue &MV, int64_t Offset,
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MachineModuleInfo *MMI,
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MCStreamer &Streamer) const override;
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};
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/// \brief This implemenatation is used for X86 ELF targets that don't
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/// have a further specialization.
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class X86ELFTargetObjectFile : public TargetLoweringObjectFileELF {
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/// \brief Describe a TLS variable address within debug info.
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const MCExpr *getDebugThreadLocalSymbol(const MCSymbol *Sym) const override;
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};
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/// X86LinuxNaClTargetObjectFile - This implementation is used for linux and
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/// Native Client on x86 and x86-64.
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class X86LinuxNaClTargetObjectFile : public X86ELFTargetObjectFile {
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void Initialize(MCContext &Ctx, const TargetMachine &TM) override;
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};
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/// \brief This implementation is used for Windows targets on x86 and x86-64.
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class X86WindowsTargetObjectFile : public TargetLoweringObjectFileCOFF {
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const MCExpr *
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getExecutableRelativeSymbol(const ConstantExpr *CE, Mangler &Mang,
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const TargetMachine &TM) const override;
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/// \brief Given a mergeable constant with the specified size and relocation
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/// information, return a section that it should be placed in.
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MCSection *getSectionForConstant(SectionKind Kind,
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const Constant *C) const override;
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};
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} // end namespace llvm
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#endif
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