1 // 2 // Copyright (C) 2017 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 package clangprebuilts 18 19 import ( 20 "path" 21 "strings" 22 23 "github.com/google/blueprint/proptools" 24 25 "android/soong/android" 26 "android/soong/cc" 27 "android/soong/cc/config" 28 ) 29 30 // This module is used to generate libfuzzer, libomp static libraries and 31 // libclang_rt.* shared libraries. When LLVM_PREBUILTS_VERSION and 32 // LLVM_RELEASE_VERSION are set, the library will generated from the given 33 // path. 34 35 func init() { 36 android.RegisterModuleType("llvm_prebuilt_library_static", 37 llvmPrebuiltLibraryStaticFactory) 38 android.RegisterModuleType("libclang_rt_prebuilt_library_shared", 39 libClangRtPrebuiltLibrarySharedFactory) 40 android.RegisterModuleType("libclang_rt_prebuilt_library_static", 41 libClangRtPrebuiltLibraryStaticFactory) 42 android.RegisterModuleType("libclang_rt_llndk_library", 43 libClangRtLLndkLibraryFactory) 44 } 45 46 func getClangPrebuiltDir(ctx android.LoadHookContext) string { 47 return path.Join( 48 "./", 49 ctx.AConfig().GetenvWithDefault("LLVM_PREBUILTS_VERSION", config.ClangDefaultVersion), 50 ) 51 } 52 53 func getClangResourceDir(ctx android.LoadHookContext) string { 54 clangDir := getClangPrebuiltDir(ctx) 55 releaseVersion := ctx.AConfig().GetenvWithDefault("LLVM_RELEASE_VERSION", 56 config.ClangDefaultShortVersion) 57 return path.Join(clangDir, "lib64", "clang", releaseVersion, "lib", "linux") 58 } 59 60 type archProps struct { 61 Android_arm struct { 62 Srcs []string 63 } 64 Android_arm64 struct { 65 Srcs []string 66 } 67 Android_mips struct { 68 Srcs []string 69 } 70 Android_mips64 struct { 71 Srcs []string 72 } 73 Android_x86 struct { 74 Srcs []string 75 } 76 Android_x86_64 struct { 77 Srcs []string 78 } 79 } 80 81 func llvmPrebuiltLibraryStatic(ctx android.LoadHookContext) { 82 libDir := getClangResourceDir(ctx) 83 name := strings.TrimPrefix(ctx.ModuleName(), "prebuilt_") + ".a" 84 85 type props struct { 86 Export_include_dirs []string 87 Target archProps 88 } 89 90 p := &props{} 91 92 if (name == "libFuzzer.a") { 93 headerDir := path.Join(getClangPrebuiltDir(ctx), "prebuilt_include", "llvm", "lib", "Fuzzer") 94 p.Export_include_dirs = []string{headerDir} 95 } 96 97 p.Target.Android_arm.Srcs = []string{path.Join(libDir, "arm", name)} 98 p.Target.Android_arm64.Srcs = []string{path.Join(libDir, "aarch64", name)} 99 p.Target.Android_mips.Srcs = []string{path.Join(libDir, "mipsel", name)} 100 p.Target.Android_mips64.Srcs = []string{path.Join(libDir, "mips64el", name)} 101 p.Target.Android_x86.Srcs = []string{path.Join(libDir, "i386", name)} 102 p.Target.Android_x86_64.Srcs = []string{path.Join(libDir, "x86_64", name)} 103 ctx.AppendProperties(p) 104 } 105 106 func libClangRtPrebuiltLibraryShared(ctx android.LoadHookContext) { 107 if ctx.AConfig().IsEnvTrue("FORCE_BUILD_SANITIZER_SHARED_OBJECTS") { 108 return 109 } 110 111 libDir := getClangResourceDir(ctx) 112 113 type props struct { 114 Srcs []string 115 System_shared_libs []string 116 Sanitize struct { 117 Never *bool 118 } 119 Strip struct { 120 None *bool 121 } 122 Pack_relocations *bool 123 Stl *string 124 } 125 126 p := &props{} 127 128 name := strings.TrimPrefix(ctx.ModuleName(), "prebuilt_") 129 130 p.Srcs = []string{path.Join(libDir, name+".so")} 131 p.System_shared_libs = []string{} 132 p.Sanitize.Never = proptools.BoolPtr(true) 133 p.Strip.None = proptools.BoolPtr(true) 134 disable := false 135 p.Pack_relocations = &disable 136 none := "none" 137 p.Stl = &none 138 ctx.AppendProperties(p) 139 } 140 141 func libClangRtPrebuiltLibraryStatic(ctx android.LoadHookContext) { 142 libDir := getClangResourceDir(ctx) 143 144 type props struct { 145 Srcs []string 146 } 147 148 name := strings.TrimPrefix(ctx.ModuleName(), "prebuilt_") 149 150 p := &props{} 151 p.Srcs = []string{path.Join(libDir, name+".a")} 152 ctx.AppendProperties(p) 153 } 154 155 func libClangRtLLndkLibrary(ctx android.LoadHookContext) { 156 libDir := getClangResourceDir(ctx) 157 158 type props struct { 159 Symbol_file *string 160 } 161 162 p := &props{} 163 symbol_file := string(path.Join(libDir, strings.TrimSuffix(ctx.ModuleName(), ".llndk") + ".map.txt")) 164 p.Symbol_file = proptools.StringPtr(symbol_file) 165 ctx.AppendProperties(p) 166 } 167 168 func llvmPrebuiltLibraryStaticFactory() android.Module { 169 module, _ := cc.NewPrebuiltStaticLibrary(android.DeviceSupported) 170 android.AddLoadHook(module, llvmPrebuiltLibraryStatic) 171 return module.Init() 172 } 173 174 func libClangRtPrebuiltLibrarySharedFactory() android.Module { 175 module, _ := cc.NewPrebuiltSharedLibrary(android.DeviceSupported) 176 android.AddLoadHook(module, libClangRtPrebuiltLibraryShared) 177 return module.Init() 178 } 179 180 func libClangRtPrebuiltLibraryStaticFactory() android.Module { 181 module, _ := cc.NewPrebuiltStaticLibrary(android.DeviceSupported) 182 android.AddLoadHook(module, libClangRtPrebuiltLibraryStatic) 183 return module.Init() 184 } 185 186 func libClangRtLLndkLibraryFactory() android.Module { 187 module := cc.NewLLndkStubLibrary() 188 android.AddLoadHook(module, libClangRtLLndkLibrary) 189 return module.Init() 190 } 191
