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      1 //===-- MCELFObjectTargetWriter.cpp - ELF Target Writer Subclass ----------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #include "llvm/ADT/STLExtras.h"
     11 #include "llvm/MC/MCELFObjectWriter.h"
     12 #include "llvm/MC/MCExpr.h"
     13 #include "llvm/MC/MCValue.h"
     14 
     15 using namespace llvm;
     16 
     17 MCELFObjectTargetWriter::MCELFObjectTargetWriter(bool Is64Bit_,
     18                                                  uint8_t OSABI_,
     19                                                  uint16_t EMachine_,
     20                                                  bool HasRelocationAddend_,
     21                                                  bool IsN64_)
     22   : OSABI(OSABI_), EMachine(EMachine_),
     23     HasRelocationAddend(HasRelocationAddend_), Is64Bit(Is64Bit_),
     24     IsN64(IsN64_){
     25 }
     26 
     27 const MCSymbol *MCELFObjectTargetWriter::ExplicitRelSym(const MCAssembler &Asm,
     28                                                         const MCValue &Target,
     29                                                         const MCFragment &F,
     30                                                         const MCFixup &Fixup,
     31                                                         bool IsPCRel) const {
     32   return NULL;
     33 }
     34 
     35 const MCSymbol *MCELFObjectTargetWriter::undefinedExplicitRelSym(const MCValue &Target,
     36                                                                  const MCFixup &Fixup,
     37                                                                  bool IsPCRel) const {
     38   const MCSymbol &Symbol = Target.getSymA()->getSymbol();
     39   return &Symbol.AliasedSymbol();
     40 }
     41 
     42 void MCELFObjectTargetWriter::adjustFixupOffset(const MCFixup &Fixup,
     43                                                 uint64_t &RelocOffset) {
     44 }
     45 
     46 void
     47 MCELFObjectTargetWriter::sortRelocs(const MCAssembler &Asm,
     48                                     std::vector<ELFRelocationEntry> &Relocs) {
     49   // Sort by the r_offset, just like gnu as does.
     50   array_pod_sort(Relocs.begin(), Relocs.end());
     51 }
     52