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();
+ 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; }
+
+ /// getDefaultAddendForRelTy - Gets the default addend value for a
+ /// relocation entry based on the target ELF relocation type.
+ virtual long int getDefaultAddendForRelTy(unsigned RelTy,
+ long int Modifier = 0) 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