1 //===- MCLinker.tcc -------------------------------------------------------===// 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 10 /// addSymbol - add a symbol and resolve it immediately 11 template<Input::Type FROM> 12 LDSymbol* MCLinker::addSymbol(const llvm::StringRef& pName, 13 ResolveInfo::Type pType, 14 ResolveInfo::Desc pDesc, 15 ResolveInfo::Binding pBinding, 16 ResolveInfo::SizeType pSize, 17 LDSymbol::ValueType pValue, 18 FragmentRef* pFragmentRef, 19 ResolveInfo::Visibility pVisibility) 20 { 21 llvm::StringRef symbol_name = pName; 22 if (!getLDInfo().scripts().renameMap().empty() && 23 ResolveInfo::Undefined == pDesc) { 24 // If the renameMap is not empty, some symbols should be renamed. 25 // --wrap and --portable defines the symbol rename map. 26 ScriptOptions::SymbolRenameMap::iterator renameSym 27 = getLDInfo().scripts().renameMap().find(pName); 28 if (renameSym != getLDInfo().scripts().renameMap().end()) 29 symbol_name = renameSym.getEntry()->value(); 30 } 31 32 if (FROM == Input::DynObj) 33 return addSymbolFromDynObj(symbol_name, 34 pType, 35 pDesc, 36 pBinding, 37 pSize, 38 pValue, 39 pFragmentRef, 40 pVisibility); 41 42 if (FROM == Input::Object) 43 return addSymbolFromObject(symbol_name, 44 pType, 45 pDesc, 46 pBinding, 47 pSize, 48 pValue, 49 pFragmentRef, 50 pVisibility); 51 52 llvm::report_fatal_error("add a symbol from unknown file type.\n"); 53 return NULL; 54 } 55 56 // defineSymbol - define a new symbol 57 template<MCLinker::DefinePolicy POLICY, MCLinker::ResolvePolicy RESOLVE> 58 LDSymbol* MCLinker::defineSymbol(const llvm::StringRef& pName, 59 bool pIsDyn, 60 ResolveInfo::Type pType, 61 ResolveInfo::Desc pDesc, 62 ResolveInfo::Binding pBinding, 63 ResolveInfo::SizeType pSize, 64 LDSymbol::ValueType pValue, 65 FragmentRef* pFragmentRef, 66 ResolveInfo::Visibility pVisibility) 67 { 68 // These if/return should be optimized by compiler. 69 // This function is defined for clarity. 70 if (MCLinker::Force == POLICY && MCLinker::Unresolve == RESOLVE) 71 return defineSymbolForcefully(pName, 72 pIsDyn, 73 pType, 74 pDesc, 75 pBinding, 76 pSize, 77 pValue, 78 pFragmentRef, 79 pVisibility); 80 81 if (MCLinker::AsRefered == POLICY && MCLinker::Unresolve == RESOLVE) 82 return defineSymbolAsRefered(pName, 83 pIsDyn, 84 pType, 85 pDesc, 86 pBinding, 87 pSize, 88 pValue, 89 pFragmentRef, 90 pVisibility); 91 92 if (MCLinker::Force == POLICY && MCLinker::Resolve == RESOLVE) 93 return defineAndResolveSymbolForcefully(pName, 94 pIsDyn, 95 pType, 96 pDesc, 97 pBinding, 98 pSize, 99 pValue, 100 pFragmentRef, 101 pVisibility); 102 103 if (MCLinker::AsRefered == POLICY && MCLinker::Resolve == RESOLVE) 104 return defineAndResolveSymbolAsRefered(pName, 105 pIsDyn, 106 pType, 107 pDesc, 108 pBinding, 109 pSize, 110 pValue, 111 pFragmentRef, 112 pVisibility); 113 } 114 115
