1 //===- LinkerConfig.h -----------------------------------------------------===// 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 #ifndef MCLD_LINKER_CONFIG_H 10 #define MCLD_LINKER_CONFIG_H 11 #ifdef ENABLE_UNITTEST 12 #include <gtest.h> 13 #endif 14 15 #include <llvm/ADT/Triple.h> 16 17 #include <mcld/GeneralOptions.h> 18 #include <mcld/ScriptOptions.h> 19 #include <mcld/TargetOptions.h> 20 #include <mcld/BitcodeOption.h> 21 #include <mcld/AttributeOption.h> 22 #include <mcld/Support/Path.h> 23 24 #include <string> 25 26 namespace mcld { 27 28 /** \class LinkerConfig 29 * \brief LinkerConfig is composed of argumments of MCLinker. 30 * options() - the general options 31 * scripts() - the script options 32 * bitcode() - the bitcode being linked 33 * attribute() - the attribute options 34 */ 35 class LinkerConfig 36 { 37 public: 38 enum CodeGenType { 39 Unknown, 40 Object, 41 DynObj, 42 Exec, 43 External, 44 Binary 45 }; 46 47 /** \enum CodePosition 48 * CodePosition indicates the ability of the generated output to be 49 * loaded at different addresses. If the output can be loaded at different 50 * addresses, we say the output is position independent. Shared libraries 51 * and position-independent executable programs (PIE) are in this category. 52 * ::Independent indicates the output is position independent. 53 * If a executable program can not be loaded at arbitrary addresses, but it 54 * can call outside functions, we say the program is dynamic dependent on 55 * the address to be loaded. ::DynamicDependent indicates the output is not 56 * only a executable program, but also dynamic dependent. In general, 57 * executable programs are dynamic dependent. 58 * If a executable program can not be loaded at different addresses, and 59 * only call inner functions, then we say the program is static dependent on 60 * its loaded address. ::StaticDependent is used to indicate this kind of 61 * output. 62 */ 63 enum CodePosition { 64 Independent, ///< Position Independent 65 DynamicDependent, ///< Can call outside libraries 66 StaticDependent ///< Can not call outside libraries 67 }; 68 69 public: 70 LinkerConfig(); 71 72 explicit LinkerConfig(const std::string &pTripleString); 73 74 ~LinkerConfig(); 75 options()76 const GeneralOptions& options() const { return m_Options; } options()77 GeneralOptions& options() { return m_Options; } 78 scripts()79 const ScriptOptions& scripts() const { return m_Scripts; } scripts()80 ScriptOptions& scripts() { return m_Scripts; } 81 targets()82 const TargetOptions& targets() const { return m_Targets; } targets()83 TargetOptions& targets() { return m_Targets; } 84 bitcode()85 const BitcodeOption& bitcode() const { return m_Bitcode; } bitcode()86 BitcodeOption& bitcode() { return m_Bitcode; } 87 attribute()88 const AttributeOption& attribute() const { return m_Attribute; } attribute()89 AttributeOption& attribute() { return m_Attribute; } 90 codeGenType()91 CodeGenType codeGenType() const { return m_CodeGenType; } 92 setCodeGenType(CodeGenType pType)93 void setCodeGenType(CodeGenType pType) { m_CodeGenType = pType; } 94 codePosition()95 CodePosition codePosition() const { return m_CodePosition; } setCodePosition(CodePosition pPosition)96 void setCodePosition(CodePosition pPosition) { m_CodePosition = pPosition; } 97 isCodeIndep()98 bool isCodeIndep() const { return (Independent == m_CodePosition); } isCodeDynamic()99 bool isCodeDynamic() const { return (DynamicDependent == m_CodePosition); } isCodeStatic()100 bool isCodeStatic() const { return (StaticDependent == m_CodePosition); } 101 102 static const char* version(); 103 104 private: 105 // ----- General Options ----- // 106 GeneralOptions m_Options; 107 ScriptOptions m_Scripts; 108 TargetOptions m_Targets; 109 BitcodeOption m_Bitcode; 110 AttributeOption m_Attribute; 111 112 CodeGenType m_CodeGenType; 113 CodePosition m_CodePosition; 114 }; 115 116 } // namespace of mcld 117 118 #endif 119 120