mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-06 05:06:45 +00:00
0a38dc5fda
are referenced, ignore the relocation entry and patch the relocatable field with the computed symbol offset directly git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76414 91177308-0d34-0410-b5e6-96231b3b80d8
86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
//===-- X86ELFWriterInfo.h - ELF Writer Info for X86 ------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements ELF writer information for the X86 backend.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef X86_ELF_WRITER_INFO_H
|
|
#define X86_ELF_WRITER_INFO_H
|
|
|
|
#include "llvm/Target/TargetELFWriterInfo.h"
|
|
|
|
namespace llvm {
|
|
|
|
class X86ELFWriterInfo : public TargetELFWriterInfo {
|
|
|
|
// ELF Relocation types for X86
|
|
enum X86RelocationType {
|
|
R_386_NONE = 0,
|
|
R_386_32 = 1,
|
|
R_386_PC32 = 2
|
|
};
|
|
|
|
// ELF Relocation types for X86_64
|
|
enum X86_64RelocationType {
|
|
R_X86_64_NONE = 0,
|
|
R_X86_64_64 = 1,
|
|
R_X86_64_PC32 = 2,
|
|
R_X86_64_32 = 10,
|
|
R_X86_64_32S = 11,
|
|
R_X86_64_PC64 = 24
|
|
};
|
|
|
|
public:
|
|
X86ELFWriterInfo(TargetMachine &TM);
|
|
virtual ~X86ELFWriterInfo();
|
|
|
|
/// getRelocationType - Returns the target specific ELF Relocation type.
|
|
/// 'MachineRelTy' contains the object code independent relocation type
|
|
virtual unsigned getRelocationType(unsigned MachineRelTy) const;
|
|
|
|
/// hasRelocationAddend - True if the target uses an addend in the
|
|
/// ELF relocation entry.
|
|
virtual bool hasRelocationAddend() const { return is64Bit ? true : false; }
|
|
|
|
/// hasCustomJumpTableIndexRelTy - Returns true if the target has a
|
|
/// specific relocation type for a jump table index.
|
|
virtual bool hasCustomJumpTableIndexRelTy() const {
|
|
return is64Bit ? true : false;
|
|
}
|
|
|
|
/// getJumpTableIndexRelTy - Returns the target specific relocation type
|
|
/// for a jump table index.
|
|
virtual unsigned getJumpTableIndexRelTy() const { return R_X86_64_32S; }
|
|
|
|
/// getDefaultAddendForRelTy - Gets the default addend value for a
|
|
/// relocation entry based on the target ELF relocation type.
|
|
virtual long int getDefaultAddendForRelTy(unsigned RelTy) const;
|
|
|
|
/// getRelTySize - Returns the size of relocatable field in bits
|
|
virtual unsigned getRelocationTySize(unsigned RelTy) const;
|
|
|
|
/// isPCRelativeRel - True if the relocation type is pc relative
|
|
virtual bool isPCRelativeRel(unsigned RelTy) const;
|
|
|
|
/// getJumpTableRelocationTy - Returns the machine relocation type used
|
|
/// to reference a jumptable.
|
|
virtual unsigned getAbsoluteLabelMachineRelTy() const;
|
|
|
|
/// computeRelocation - Some relocatable fields could be relocated
|
|
/// directly, avoiding the relocation symbol emission, compute the
|
|
/// final relocation value for this symbol.
|
|
virtual long int computeRelocation(unsigned SymOffset, unsigned RelOffset,
|
|
unsigned RelTy) const;
|
|
};
|
|
|
|
} // end llvm namespace
|
|
|
|
#endif // X86_ELF_WRITER_INFO_H
|