1 //===-- MBlazeELFWriterInfo.h - ELF Writer Info for MBlaze ------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements ELF writer information for the MBlaze backend.
12 //===----------------------------------------------------------------------===//
14 #ifndef MBLAZE_ELF_WRITER_INFO_H
15 #define MBLAZE_ELF_WRITER_INFO_H
17 #include "llvm/Target/TargetELFWriterInfo.h"
21 class MBlazeELFWriterInfo : public TargetELFWriterInfo {
23 MBlazeELFWriterInfo(TargetMachine &TM);
24 virtual ~MBlazeELFWriterInfo();
26 /// getRelocationType - Returns the target specific ELF Relocation type.
27 /// 'MachineRelTy' contains the object code independent relocation type
28 virtual unsigned getRelocationType(unsigned MachineRelTy) const;
30 /// hasRelocationAddend - True if the target uses an addend in the
31 /// ELF relocation entry.
32 virtual bool hasRelocationAddend() const { return false; }
34 /// getDefaultAddendForRelTy - Gets the default addend value for a
35 /// relocation entry based on the target ELF relocation type.
36 virtual long int getDefaultAddendForRelTy(unsigned RelTy,
37 long int Modifier = 0) const;
39 /// getRelTySize - Returns the size of relocatable field in bits
40 virtual unsigned getRelocationTySize(unsigned RelTy) const;
42 /// isPCRelativeRel - True if the relocation type is pc relative
43 virtual bool isPCRelativeRel(unsigned RelTy) const;
45 /// getJumpTableRelocationTy - Returns the machine relocation type used
46 /// to reference a jumptable.
47 virtual unsigned getAbsoluteLabelMachineRelTy() const;
49 /// computeRelocation - Some relocatable fields could be relocated
50 /// directly, avoiding the relocation symbol emission, compute the
51 /// final relocation value for this symbol.
52 virtual long int computeRelocation(unsigned SymOffset, unsigned RelOffset,
53 unsigned RelTy) const;
56 } // end llvm namespace
58 #endif // MBLAZE_ELF_WRITER_INFO_H