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https://github.com/c64scene-ar/llvm-6502.git
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86 lines
3.0 KiB
C
86 lines
3.0 KiB
C
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//===-- MBlazeELFWriterInfo.h - ELF Writer Info for MBlaze ------*- 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 ELF writer information for the MBlaze backend.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MBLAZE_ELF_WRITER_INFO_H
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#define MBLAZE_ELF_WRITER_INFO_H
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#include "llvm/Target/TargetELFWriterInfo.h"
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namespace llvm {
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class MBlazeELFWriterInfo : public TargetELFWriterInfo {
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// ELF Relocation types for MBlaze
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enum MBlazeRelocationType {
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R_MICROBLAZE_NONE = 0,
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R_MICROBLAZE_32 = 1,
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R_MICROBLAZE_32_PCREL = 2,
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R_MICROBLAZE_64_PCREL = 3,
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R_MICROBLAZE_32_PCREL_LO = 4,
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R_MICROBLAZE_64 = 5,
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R_MICROBLAZE_32_LO = 6,
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R_MICROBLAZE_SRO32 = 7,
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R_MICROBLAZE_SRW32 = 8,
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R_MICROBLAZE_64_NONE = 9,
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R_MICROBLAZE_32_SYM_OP_SYM = 10,
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R_MICROBLAZE_GNU_VTINHERIT = 11,
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R_MICROBLAZE_GNU_VTENTRY = 12,
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R_MICROBLAZE_GOTPC_64 = 13,
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R_MICROBLAZE_GOT_64 = 14,
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R_MICROBLAZE_PLT_64 = 15,
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R_MICROBLAZE_REL = 16,
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R_MICROBLAZE_JUMP_SLOT = 17,
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R_MICROBLAZE_GLOB_DAT = 18,
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R_MICROBLAZE_GOTOFF_64 = 19,
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R_MICROBLAZE_GOTOFF_32 = 20,
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R_MICROBLAZE_COPY = 21
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};
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public:
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MBlazeELFWriterInfo(TargetMachine &TM);
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virtual ~MBlazeELFWriterInfo();
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/// getRelocationType - Returns the target specific ELF Relocation type.
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/// 'MachineRelTy' contains the object code independent relocation type
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virtual unsigned getRelocationType(unsigned MachineRelTy) const;
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/// hasRelocationAddend - True if the target uses an addend in the
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/// ELF relocation entry.
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virtual bool hasRelocationAddend() const { return false; }
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/// getDefaultAddendForRelTy - Gets the default addend value for a
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/// relocation entry based on the target ELF relocation type.
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virtual long int getDefaultAddendForRelTy(unsigned RelTy,
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long int Modifier = 0) const;
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/// getRelTySize - Returns the size of relocatable field in bits
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virtual unsigned getRelocationTySize(unsigned RelTy) const;
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/// isPCRelativeRel - True if the relocation type is pc relative
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virtual bool isPCRelativeRel(unsigned RelTy) const;
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/// getJumpTableRelocationTy - Returns the machine relocation type used
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/// to reference a jumptable.
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virtual unsigned getAbsoluteLabelMachineRelTy() const;
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/// computeRelocation - Some relocatable fields could be relocated
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/// directly, avoiding the relocation symbol emission, compute the
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/// final relocation value for this symbol.
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virtual long int computeRelocation(unsigned SymOffset, unsigned RelOffset,
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unsigned RelTy) const;
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};
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} // end llvm namespace
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#endif // MBLAZE_ELF_WRITER_INFO_H
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