1 /* 2 * Copyright 2012, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 18 #include "bcc/Config/Config.h" 19 #include "bcc/Support/TargetLinkerConfigs.h" 20 21 #include <mcld/TargetOptions.h> 22 #include <mcld/MC/InputFactory.h> 23 #include <mcld/Fragment/Relocation.h> 24 25 using namespace bcc; 26 27 #ifdef TARGET_BUILD 28 static const char* gDefaultDyld = "/system/bin/linker"; 29 static const char* gDefaultSysroot = "/system"; 30 #else 31 static const char* gDefaultDyld = "/usr/lib/ld.so.1"; 32 static const char* gDefaultSysroot = "/"; 33 #endif 34 35 //===----------------------------------------------------------------------===// 36 // ARM 37 //===----------------------------------------------------------------------===// 38 #if defined(PROVIDE_ARM_CODEGEN) 39 ARMLinkerConfig::ARMLinkerConfig() : LinkerConfig(DEFAULT_ARM_TRIPLE_STRING) { 40 41 // set up target-dependent options 42 getLDConfig()->targets().setEndian(mcld::TargetOptions::Little); 43 getLDConfig()->targets().setBitClass(32); 44 45 // set up target-dependent constraints of attributes 46 getLDConfig()->attribute().constraint().enableWholeArchive(); 47 getLDConfig()->attribute().constraint().disableAsNeeded(); 48 getLDConfig()->attribute().constraint().setSharedSystem(); 49 50 // set up the predefined attributes 51 getLDConfig()->attribute().predefined().unsetWholeArchive(); 52 getLDConfig()->attribute().predefined().setDynamic(); 53 54 // set up target dependent options 55 if (getLDConfig()->options().sysroot().empty()) { 56 getLDConfig()->options().setSysroot(gDefaultSysroot); 57 } 58 59 if (!getLDConfig()->options().hasDyld()) { 60 getLDConfig()->options().setDyld(gDefaultDyld); 61 } 62 63 // set up section map 64 if (getLDConfig()->codeGenType() != mcld::LinkerConfig::Object) { 65 bool exist = false; 66 getLDConfig()->scripts().sectionMap().append(".ARM.exidx", ".ARM.exidx", exist); 67 getLDConfig()->scripts().sectionMap().append(".ARM.extab", ".ARM.extab", exist); 68 getLDConfig()->scripts().sectionMap().append(".ARM.attributes", ".ARM.attributes", exist); 69 } 70 71 // set up relocation factory 72 mcld::Relocation::SetUp(*getLDConfig()); 73 } 74 #endif // defined(PROVIDE_ARM_CODEGEN) 75 76 //===----------------------------------------------------------------------===// 77 // Mips 78 //===----------------------------------------------------------------------===// 79 #if defined(PROVIDE_MIPS_CODEGEN) 80 MipsLinkerConfig::MipsLinkerConfig() 81 : LinkerConfig(DEFAULT_MIPS_TRIPLE_STRING) { 82 83 // set up target-dependent options 84 getLDConfig()->targets().setEndian(mcld::TargetOptions::Little); 85 getLDConfig()->targets().setBitClass(32); 86 87 // set up target-dependent constraints of attibutes 88 getLDConfig()->attribute().constraint().enableWholeArchive(); 89 getLDConfig()->attribute().constraint().disableAsNeeded(); 90 getLDConfig()->attribute().constraint().setSharedSystem(); 91 92 // set up the predefined attributes 93 getLDConfig()->attribute().predefined().unsetWholeArchive(); 94 getLDConfig()->attribute().predefined().setDynamic(); 95 96 // set up target dependent options 97 if (getLDConfig()->options().sysroot().empty()) { 98 getLDConfig()->options().setSysroot(gDefaultSysroot); 99 } 100 101 if (!getLDConfig()->options().hasDyld()) { 102 getLDConfig()->options().setDyld(gDefaultDyld); 103 } 104 105 // set up relocation factory 106 mcld::Relocation::SetUp(*getLDConfig()); 107 } 108 #endif // defined(PROVIDE_MIPS_CODEGEN) 109 110 //===----------------------------------------------------------------------===// 111 // X86 and X86_64 112 //===----------------------------------------------------------------------===// 113 #if defined(PROVIDE_X86_CODEGEN) 114 X86FamilyLinkerConfigBase::X86FamilyLinkerConfigBase(const std::string& pTriple) 115 : LinkerConfig(pTriple) { 116 // set up target-dependent options 117 getLDConfig()->targets().setEndian(mcld::TargetOptions::Little); 118 getLDConfig()->targets().setBitClass(32); 119 120 // set up target-dependent constraints of attibutes 121 getLDConfig()->attribute().constraint().enableWholeArchive(); 122 getLDConfig()->attribute().constraint().disableAsNeeded(); 123 getLDConfig()->attribute().constraint().setSharedSystem(); 124 125 // set up the predefined attributes 126 getLDConfig()->attribute().predefined().unsetWholeArchive(); 127 getLDConfig()->attribute().predefined().setDynamic(); 128 129 // set up target dependent options 130 if (getLDConfig()->options().sysroot().empty()) { 131 getLDConfig()->options().setSysroot(gDefaultSysroot); 132 } 133 134 if (!getLDConfig()->options().hasDyld()) { 135 getLDConfig()->options().setDyld(gDefaultDyld); 136 } 137 138 // set up relocation factory 139 mcld::Relocation::SetUp(*getLDConfig()); 140 } 141 142 X86_32LinkerConfig::X86_32LinkerConfig() 143 : X86FamilyLinkerConfigBase(DEFAULT_X86_TRIPLE_STRING) { 144 } 145 146 X86_64LinkerConfig::X86_64LinkerConfig() 147 : X86FamilyLinkerConfigBase(DEFAULT_X86_64_TRIPLE_STRING) { 148 } 149 #endif // defined(PROVIDE_X86_CODEGEN) 150 151 #if !defined(TARGET_BUILD) 152 //===----------------------------------------------------------------------===// 153 // General 154 //===----------------------------------------------------------------------===// 155 GeneralLinkerConfig::GeneralLinkerConfig(const std::string& pTriple) 156 : LinkerConfig(pTriple) { 157 158 // set up target-dependent options 159 getLDConfig()->targets().setEndian(mcld::TargetOptions::Little); 160 getLDConfig()->targets().setBitClass(32); 161 162 // set up target-dependent constraints of attributes 163 getLDConfig()->attribute().constraint().enableWholeArchive(); 164 getLDConfig()->attribute().constraint().disableAsNeeded(); 165 getLDConfig()->attribute().constraint().setSharedSystem(); 166 167 // set up the predefined attributes 168 getLDConfig()->attribute().predefined().unsetWholeArchive(); 169 getLDConfig()->attribute().predefined().setDynamic(); 170 171 // set up section map 172 if (llvm::Triple::arm == getLDConfig()->targets().triple().getArch() && 173 getLDConfig()->codeGenType() != mcld::LinkerConfig::Object) { 174 bool exist = false; 175 getLDConfig()->scripts().sectionMap().append(".ARM.exidx", ".ARM.exidx", exist); 176 getLDConfig()->scripts().sectionMap().append(".ARM.extab", ".ARM.extab", exist); 177 getLDConfig()->scripts().sectionMap().append(".ARM.attributes", ".ARM.attributes", exist); 178 } 179 180 // set up relocation factory 181 mcld::Relocation::SetUp(*getLDConfig()); 182 } 183 #endif // defined(TARGET_BUILD) 184
