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} $in && 39echo '${out}: \' > ${out}.d && 40for f in ${depFiles}; do cat $${f} | awk 'start { sub(/( \\)?$$/, " \\"); print } /:/ { start=1 }' >> ${out}.d; done && 41touch $out 42`, "\n", "", -1) 43 44var ( 45 rsCpp = pctx.AndroidStaticRule("rsCpp", 46 blueprint.RuleParams{ 47 Command: rsCppCmdLine, 48 CommandDeps: []string{"$rsCmd"}, 49 Depfile: "${out}.d", 50 Deps: blueprint.DepsGCC, 51 }, 52 "depFiles", "outDir", "rsFlags", "stampFile") 53) 54 55// Takes a path to a .rscript or .fs file, and returns a path to a generated ScriptC_*.cpp file 56// This has to match the logic in llvm-rs-cc in DetermineOutputFile. 57func rsGeneratedCppFile(ctx android.ModuleContext, rsFile android.Path) android.WritablePath { 58 fileName := strings.TrimSuffix(rsFile.Base(), rsFile.Ext()) 59 return android.PathForModuleGen(ctx, "rs", "ScriptC_"+fileName+".cpp") 60} 61 62func rsGeneratedHFile(ctx android.ModuleContext, rsFile android.Path) android.WritablePath { 63 fileName := strings.TrimSuffix(rsFile.Base(), rsFile.Ext()) 64 return android.PathForModuleGen(ctx, "rs", "ScriptC_"+fileName+".h") 65} 66 67func rsGeneratedDepFile(ctx android.ModuleContext, rsFile android.Path) android.WritablePath { 68 fileName := strings.TrimSuffix(rsFile.Base(), rsFile.Ext()) 69 return android.PathForModuleGen(ctx, "rs", fileName+".d") 70} 71 72func rsGenerateCpp(ctx android.ModuleContext, rsFiles android.Paths, rsFlags string) android.Paths { 73 stampFile := android.PathForModuleGen(ctx, "rs", "rs.stamp") 74 depFiles := make(android.WritablePaths, 0, len(rsFiles)) 75 genFiles := make(android.WritablePaths, 0, 2*len(rsFiles)) 76 headers := make(android.Paths, 0, len(rsFiles)) 77 for _, rsFile := range rsFiles { 78 depFiles = append(depFiles, rsGeneratedDepFile(ctx, rsFile)) 79 headerFile := rsGeneratedHFile(ctx, rsFile) 80 genFiles = append(genFiles, rsGeneratedCppFile(ctx, rsFile), headerFile) 81 headers = append(headers, headerFile) 82 } 83 84 ctx.Build(pctx, android.BuildParams{ 85 Rule: rsCpp, 86 Description: "llvm-rs-cc", 87 Output: stampFile, 88 ImplicitOutputs: genFiles, 89 Inputs: rsFiles, 90 Args: map[string]string{ 91 "rsFlags": rsFlags, 92 "outDir": android.PathForModuleGen(ctx, "rs").String(), 93 "depFiles": strings.Join(depFiles.Strings(), " "), 94 }, 95 }) 96 97 return headers 98} 99 100func rsFlags(ctx ModuleContext, flags Flags, properties *BaseCompilerProperties) Flags { 101 targetApi := String(properties.Renderscript.Target_api) 102 if targetApi == "" && ctx.useSdk() { 103 switch ctx.sdkVersion() { 104 case "current", "system_current", "test_current": 105 // Nothing 106 default: 107 targetApi = android.GetNumericSdkVersion(ctx.sdkVersion()) 108 } 109 } 110 111 if targetApi != "" { 112 flags.rsFlags = append(flags.rsFlags, "-target-api "+targetApi) 113 } 114 115 flags.rsFlags = append(flags.rsFlags, "-Wall", "-Werror") 116 flags.rsFlags = append(flags.rsFlags, properties.Renderscript.Flags...) 117 if ctx.Arch().ArchType.Multilib == "lib64" { 118 flags.rsFlags = append(flags.rsFlags, "-m64") 119 } else { 120 flags.rsFlags = append(flags.rsFlags, "-m32") 121 } 122 flags.rsFlags = append(flags.rsFlags, "${config.RsGlobalIncludes}") 123 124 rootRsIncludeDirs := android.PathsForSource(ctx, properties.Renderscript.Include_dirs) 125 flags.rsFlags = append(flags.rsFlags, includeDirsToFlags(rootRsIncludeDirs)) 126 127 flags.Local.CommonFlags = append(flags.Local.CommonFlags, 128 "-I"+android.PathForModuleGen(ctx, "rs").String(), 129 "-Iframeworks/rs", 130 "-Iframeworks/rs/cpp", 131 ) 132 133 return flags 134} 135