1// Copyright 2017 Google Inc. All rights reserved. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package cc 16 17import ( 18 "android/soong/android" 19 "path/filepath" 20 "runtime" 21 "strings" 22 23 "github.com/google/blueprint" 24) 25 26func init() { 27 pctx.VariableFunc("rsCmd", func(ctx android.PackageVarContext) string { 28 if ctx.Config().AlwaysUsePrebuiltSdks() { 29 // Use RenderScript prebuilts for unbundled builds 30 return filepath.Join("prebuilts/sdk/tools", runtime.GOOS, "bin/llvm-rs-cc") 31 } else { 32 return ctx.Config().HostToolPath(ctx, "llvm-rs-cc").String() 33 } 34 }) 35} 36 37var rsCppCmdLine = strings.Replace(` 38${rsCmd} -o ${outDir} -d ${outDir} -a ${out} -MD -reflect-c++ ${rsFlags} $in && 39(echo '${out}: \' && cat ${depFiles} | awk 'start { sub(/( \\)?$$/, " \\"); print } /:/ { start=1 }') > ${out}.d && 40touch $out 41`, "\n", "", -1) 42 43var ( 44 rsCpp = pctx.AndroidStaticRule("rsCpp", 45 blueprint.RuleParams{ 46 Command: rsCppCmdLine, 47 CommandDeps: []string{"$rsCmd"}, 48 Depfile: "${out}.d", 49 Deps: blueprint.DepsGCC, 50 }, 51 "depFiles", "outDir", "rsFlags", "stampFile") 52) 53 54// Takes a path to a .rscript or .fs file, and returns a path to a generated ScriptC_*.cpp file 55// This has to match the logic in llvm-rs-cc in DetermineOutputFile. 56func rsGeneratedCppFile(ctx android.ModuleContext, rsFile android.Path) android.WritablePath { 57 fileName := strings.TrimSuffix(rsFile.Base(), rsFile.Ext()) 58 return android.PathForModuleGen(ctx, "rs", "ScriptC_"+fileName+".cpp") 59} 60 61func rsGeneratedHFile(ctx android.ModuleContext, rsFile android.Path) android.WritablePath { 62 fileName := strings.TrimSuffix(rsFile.Base(), rsFile.Ext()) 63 return android.PathForModuleGen(ctx, "rs", "ScriptC_"+fileName+".h") 64} 65 66func rsGeneratedDepFile(ctx android.ModuleContext, rsFile android.Path) android.WritablePath { 67 fileName := strings.TrimSuffix(rsFile.Base(), rsFile.Ext()) 68 return android.PathForModuleGen(ctx, "rs", fileName+".d") 69} 70 71func rsGenerateCpp(ctx android.ModuleContext, rsFiles android.Paths, rsFlags string) android.Paths { 72 stampFile := android.PathForModuleGen(ctx, "rs", "rs.stamp") 73 depFiles := make(android.WritablePaths, 0, len(rsFiles)) 74 genFiles := make(android.WritablePaths, 0, 2*len(rsFiles)) 75 headers := make(android.Paths, 0, len(rsFiles)) 76 for _, rsFile := range rsFiles { 77 depFiles = append(depFiles, rsGeneratedDepFile(ctx, rsFile)) 78 headerFile := rsGeneratedHFile(ctx, rsFile) 79 genFiles = append(genFiles, rsGeneratedCppFile(ctx, rsFile), headerFile) 80 headers = append(headers, headerFile) 81 } 82 83 ctx.Build(pctx, android.BuildParams{ 84 Rule: rsCpp, 85 Description: "llvm-rs-cc", 86 Output: stampFile, 87 ImplicitOutputs: genFiles, 88 Inputs: rsFiles, 89 Args: map[string]string{ 90 "rsFlags": rsFlags, 91 "outDir": android.PathForModuleGen(ctx, "rs").String(), 92 "depFiles": strings.Join(depFiles.Strings(), " "), 93 }, 94 }) 95 96 return headers 97} 98 99func rsFlags(ctx ModuleContext, flags Flags, properties *BaseCompilerProperties) Flags { 100 targetApi := String(properties.Renderscript.Target_api) 101 if targetApi == "" && ctx.useSdk() { 102 switch ctx.sdkVersion() { 103 case "current", "system_current", "test_current": 104 // Nothing 105 default: 106 targetApi = android.GetNumericSdkVersion(ctx.sdkVersion()) 107 } 108 } 109 110 if targetApi != "" { 111 flags.rsFlags = append(flags.rsFlags, "-target-api "+targetApi) 112 } 113 114 flags.rsFlags = append(flags.rsFlags, "-Wall", "-Werror") 115 flags.rsFlags = append(flags.rsFlags, properties.Renderscript.Flags...) 116 if ctx.Arch().ArchType.Multilib == "lib64" { 117 flags.rsFlags = append(flags.rsFlags, "-m64") 118 } else { 119 flags.rsFlags = append(flags.rsFlags, "-m32") 120 } 121 flags.rsFlags = append(flags.rsFlags, "${config.RsGlobalIncludes}") 122 123 rootRsIncludeDirs := android.PathsForSource(ctx, properties.Renderscript.Include_dirs) 124 flags.rsFlags = append(flags.rsFlags, includeDirsToFlags(rootRsIncludeDirs)) 125 126 flags.Local.CommonFlags = append(flags.Local.CommonFlags, 127 "-I"+android.PathForModuleGen(ctx, "rs").String(), 128 "-Iframeworks/rs", 129 "-Iframeworks/rs/cpp", 130 ) 131 132 return flags 133} 134