1 //===- Relocation.cpp -----------------------------------------------------===// 2 // 3 // The MCLinker Project 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 #include <llvm/MC/MCAssembler.h> 10 //#include <mcld/MC/MCLDInfo.h> 11 #include <mcld/LD/Relocation.h> 12 #include <mcld/LD/RelocationFactory.h> 13 #include <mcld/LD/Layout.h> 14 15 using namespace mcld; 16 17 Relocation::Relocation(Relocation::Type pType, 18 MCFragmentRef* pTargetRef, 19 Relocation::Address pAddend, 20 Relocation::DWord pTargetData) 21 : MCFragment(llvm::MCFragment::FT_Reloc), 22 m_Type(pType), 23 m_TargetData(pTargetData), 24 m_pSymInfo(NULL), 25 m_Addend(pAddend) 26 { 27 if(NULL != pTargetRef) 28 m_TargetAddress.assign(*pTargetRef->frag(), pTargetRef->offset()) ; 29 } 30 31 Relocation::~Relocation() 32 { 33 } 34 35 Relocation::Address Relocation::place(const Layout& pLayout) const 36 { 37 Address sect_addr = pLayout.getOutputLDSection(*(m_TargetAddress.frag()))->addr(); 38 return sect_addr + pLayout.getOutputOffset(m_TargetAddress); 39 } 40 41 Relocation::Address Relocation::symValue() const 42 { 43 if(m_pSymInfo->type() == ResolveInfo::Section && 44 m_pSymInfo->outSymbol()->hasFragRef()) { 45 return llvm::cast<LDSection>( 46 m_pSymInfo->outSymbol()->fragRef()->frag()->getParent()->getSection()).addr(); 47 } 48 return m_pSymInfo->outSymbol()->value(); 49 } 50 51 void Relocation::apply(RelocationFactory& pRelocFactory, 52 const MCLDInfo& pLDInfo) 53 { 54 pRelocFactory.applyRelocation(*this, pLDInfo); 55 } 56 57 void Relocation::setType(Type pType) 58 { 59 m_Type = pType; 60 } 61 62 void Relocation::setAddend(Address pAddend) 63 { 64 m_Addend = pAddend; 65 } 66 67 void Relocation::setSymInfo(ResolveInfo* pSym) 68 { 69 m_pSymInfo = pSym; 70 } 71 72 Relocation::DWord& Relocation::target() 73 { 74 return m_TargetData; 75 } 76 77 const Relocation::DWord& Relocation::target() const 78 { 79 return m_TargetData; 80 } 81 82
