1 //===- HexagonPLT.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 "HexagonPLT.h" 10 11 #include <llvm/Support/ELF.h> 12 #include <llvm/Support/Casting.h> 13 14 #include <mcld/LD/LDSection.h> 15 #include <mcld/LinkerConfig.h> 16 #include <mcld/Support/MsgHandling.h> 17 18 using namespace mcld; 19 20 //===----------------------------------------------------------------------===// 21 // PLT entry data 22 //===----------------------------------------------------------------------===// 23 HexagonDynPLT0::HexagonDynPLT0(SectionData& pParent) 24 : PLT::Entry<sizeof(hexagon_dyn_plt0)>(pParent) 25 { 26 } 27 28 HexagonExecPLT0::HexagonExecPLT0(SectionData& pParent) 29 : PLT::Entry<sizeof(hexagon_exec_plt0)>(pParent) 30 { 31 } 32 33 //===----------------------------------------------------------------------===// 34 // HexagonPLT 35 //===----------------------------------------------------------------------===// 36 HexagonPLT::HexagonPLT(LDSection& pSection, 37 HexagonGOT &pGOTPLT, 38 const LinkerConfig& pConfig) 39 : PLT(pSection), 40 m_GOT(pGOTPLT), 41 m_Config(pConfig) 42 { 43 assert(LinkerConfig::DynObj == m_Config.codeGenType() || 44 LinkerConfig::Exec == m_Config.codeGenType() || 45 LinkerConfig::Binary == m_Config.codeGenType()); 46 47 if (LinkerConfig::DynObj == m_Config.codeGenType()) { 48 m_PLT0 = hexagon_dyn_plt0; 49 m_PLT0Size = sizeof (hexagon_dyn_plt0); 50 // create PLT0 51 new HexagonDynPLT0(*m_SectionData); 52 } 53 else { 54 m_PLT0 = hexagon_exec_plt0; 55 m_PLT0Size = sizeof (hexagon_exec_plt0); 56 // create PLT0 57 new HexagonExecPLT0(*m_SectionData); 58 } 59 m_Last = m_SectionData->begin(); 60 } 61 62 HexagonPLT::~HexagonPLT() 63 { 64 } 65 66 PLTEntryBase* HexagonPLT::getPLT0() const 67 { 68 iterator first = m_SectionData->getFragmentList().begin(); 69 70 assert(first != m_SectionData->getFragmentList().end() && 71 "FragmentList is empty, getPLT0 failed!"); 72 73 PLTEntryBase* plt0 = &(llvm::cast<PLTEntryBase>(*first)); 74 75 return plt0; 76 } 77 78 void HexagonPLT::finalizeSectionSize() 79 { 80 uint64_t size = 0; 81 // plt0 size 82 size = getPLT0()->size(); 83 84 m_Section.setSize(size); 85 86 uint32_t offset = 0; 87 SectionData::iterator frag, fragEnd = m_SectionData->end(); 88 for (frag = m_SectionData->begin(); frag != fragEnd; ++frag) { 89 frag->setOffset(offset); 90 offset += frag->size(); 91 } 92 } 93 94 void HexagonPLT::reserveEntry(size_t pNum) 95 { 96 } 97 98
