| // Copyright 2015 Google Inc. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package cc |
| |
| import ( |
| "path/filepath" |
| "strings" |
| |
| "github.com/google/blueprint" |
| |
| "android/soong/android" |
| ) |
| |
| func init() { |
| pctx.SourcePathVariable("lexCmd", "prebuilts/build-tools/${config.HostPrebuiltTag}/bin/flex") |
| pctx.SourcePathVariable("m4Cmd", "prebuilts/build-tools/${config.HostPrebuiltTag}/bin/m4") |
| |
| pctx.HostBinToolVariable("aidlCmd", "aidl-cpp") |
| pctx.HostBinToolVariable("syspropCmd", "sysprop_cpp") |
| } |
| |
| var ( |
| lex = pctx.AndroidStaticRule("lex", |
| blueprint.RuleParams{ |
| Command: "M4=$m4Cmd $lexCmd $flags -o$out $in", |
| CommandDeps: []string{"$lexCmd", "$m4Cmd"}, |
| }, "flags") |
| |
| sysprop = pctx.AndroidStaticRule("sysprop", |
| blueprint.RuleParams{ |
| Command: "$syspropCmd --header-dir=$headerOutDir --public-header-dir=$publicOutDir " + |
| "--source-dir=$srcOutDir --include-name=$includeName $in", |
| CommandDeps: []string{"$syspropCmd"}, |
| }, |
| "headerOutDir", "publicOutDir", "srcOutDir", "includeName") |
| ) |
| |
| type YaccProperties struct { |
| // list of module-specific flags that will be used for .y and .yy compiles |
| Flags []string |
| |
| // whether the yacc files will produce a location.hh file |
| Gen_location_hh *bool |
| |
| // whether the yacc files will product a position.hh file |
| Gen_position_hh *bool |
| } |
| |
| func genYacc(ctx android.ModuleContext, rule *android.RuleBuilder, yaccFile android.Path, |
| outFile android.ModuleGenPath, props *YaccProperties) (headerFiles android.Paths) { |
| |
| outDir := android.PathForModuleGen(ctx, "yacc") |
| headerFile := android.GenPathWithExt(ctx, "yacc", yaccFile, "h") |
| ret := android.Paths{headerFile} |
| |
| cmd := rule.Command() |
| |
| // Fix up #line markers to not use the sbox temporary directory |
| // android.sboxPathForOutput(outDir, outDir) returns the sbox placeholder for the out |
| // directory itself, without any filename appended. |
| sboxOutDir := cmd.PathForOutput(outDir) |
| sedCmd := "sed -i.bak 's#" + sboxOutDir + "#" + outDir.String() + "#'" |
| rule.Command().Text(sedCmd).Input(outFile) |
| rule.Command().Text(sedCmd).Input(headerFile) |
| |
| var flags []string |
| if props != nil { |
| flags = props.Flags |
| |
| if Bool(props.Gen_location_hh) { |
| locationHeader := outFile.InSameDir(ctx, "location.hh") |
| ret = append(ret, locationHeader) |
| cmd.ImplicitOutput(locationHeader) |
| rule.Command().Text(sedCmd).Input(locationHeader) |
| } |
| if Bool(props.Gen_position_hh) { |
| positionHeader := outFile.InSameDir(ctx, "position.hh") |
| ret = append(ret, positionHeader) |
| cmd.ImplicitOutput(positionHeader) |
| rule.Command().Text(sedCmd).Input(positionHeader) |
| } |
| } |
| |
| cmd.Text("BISON_PKGDATADIR=prebuilts/build-tools/common/bison"). |
| FlagWithInput("M4=", ctx.Config().PrebuiltBuildTool(ctx, "m4")). |
| PrebuiltBuildTool(ctx, "bison"). |
| Flag("-d"). |
| Flags(flags). |
| FlagWithOutput("--defines=", headerFile). |
| Flag("-o").Output(outFile).Input(yaccFile) |
| |
| return ret |
| } |
| |
| func genAidl(ctx android.ModuleContext, rule *android.RuleBuilder, aidlFile android.Path, aidlFlags string) (cppFile android.OutputPath, headerFiles android.Paths) { |
| aidlPackage := strings.TrimSuffix(aidlFile.Rel(), aidlFile.Base()) |
| baseName := strings.TrimSuffix(aidlFile.Base(), aidlFile.Ext()) |
| shortName := baseName |
| // TODO(b/111362593): aidl_to_cpp_common.cpp uses heuristics to figure out if |
| // an interface name has a leading I. Those same heuristics have been |
| // moved here. |
| if len(baseName) >= 2 && baseName[0] == 'I' && |
| strings.ToUpper(baseName)[1] == baseName[1] { |
| shortName = strings.TrimPrefix(baseName, "I") |
| } |
| |
| outDir := android.PathForModuleGen(ctx, "aidl") |
| cppFile = outDir.Join(ctx, aidlPackage, baseName+".cpp") |
| depFile := outDir.Join(ctx, aidlPackage, baseName+".cpp.d") |
| headerI := outDir.Join(ctx, aidlPackage, baseName+".h") |
| headerBn := outDir.Join(ctx, aidlPackage, "Bn"+shortName+".h") |
| headerBp := outDir.Join(ctx, aidlPackage, "Bp"+shortName+".h") |
| |
| baseDir := strings.TrimSuffix(aidlFile.String(), aidlFile.Rel()) |
| if baseDir != "" { |
| aidlFlags += " -I" + baseDir |
| } |
| |
| cmd := rule.Command() |
| cmd.BuiltTool("aidl-cpp"). |
| FlagWithDepFile("-d", depFile). |
| Flag("--ninja"). |
| Flag(aidlFlags). |
| Input(aidlFile). |
| OutputDir(). |
| Output(cppFile). |
| ImplicitOutputs(android.WritablePaths{ |
| headerI, |
| headerBn, |
| headerBp, |
| }) |
| |
| return cppFile, android.Paths{ |
| headerI, |
| headerBn, |
| headerBp, |
| } |
| } |
| |
| type LexProperties struct { |
| // list of module-specific flags that will be used for .l and .ll compiles |
| Flags []string |
| } |
| |
| func genLex(ctx android.ModuleContext, lexFile android.Path, outFile android.ModuleGenPath, props *LexProperties) { |
| var flags []string |
| if props != nil { |
| flags = props.Flags |
| } |
| flagsString := strings.Join(flags[:], " ") |
| ctx.Build(pctx, android.BuildParams{ |
| Rule: lex, |
| Description: "lex " + lexFile.Rel(), |
| Output: outFile, |
| Input: lexFile, |
| Args: map[string]string{"flags": flagsString}, |
| }) |
| } |
| |
| func genSysprop(ctx android.ModuleContext, syspropFile android.Path) (android.Path, android.Paths) { |
| headerFile := android.PathForModuleGen(ctx, "sysprop", "include", syspropFile.Rel()+".h") |
| publicHeaderFile := android.PathForModuleGen(ctx, "sysprop/public", "include", syspropFile.Rel()+".h") |
| cppFile := android.PathForModuleGen(ctx, "sysprop", syspropFile.Rel()+".cpp") |
| |
| headers := android.WritablePaths{headerFile, publicHeaderFile} |
| |
| ctx.Build(pctx, android.BuildParams{ |
| Rule: sysprop, |
| Description: "sysprop " + syspropFile.Rel(), |
| Output: cppFile, |
| ImplicitOutputs: headers, |
| Input: syspropFile, |
| Args: map[string]string{ |
| "headerOutDir": filepath.Dir(headerFile.String()), |
| "publicOutDir": filepath.Dir(publicHeaderFile.String()), |
| "srcOutDir": filepath.Dir(cppFile.String()), |
| "includeName": syspropFile.Rel() + ".h", |
| }, |
| }) |
| |
| return cppFile, headers.Paths() |
| } |
| |
| // Used to communicate information from the genSources method back to the library code that uses |
| // it. |
| type generatedSourceInfo struct { |
| // The headers created from .proto files |
| protoHeaders android.Paths |
| |
| // The files that can be used as order only dependencies in order to ensure that the proto header |
| // files are up to date. |
| protoOrderOnlyDeps android.Paths |
| |
| // The headers created from .aidl files |
| aidlHeaders android.Paths |
| |
| // The files that can be used as order only dependencies in order to ensure that the aidl header |
| // files are up to date. |
| aidlOrderOnlyDeps android.Paths |
| |
| // The headers created from .sysprop files |
| syspropHeaders android.Paths |
| |
| // The files that can be used as order only dependencies in order to ensure that the sysprop |
| // header files are up to date. |
| syspropOrderOnlyDeps android.Paths |
| } |
| |
| func genSources(ctx android.ModuleContext, srcFiles android.Paths, |
| buildFlags builderFlags) (android.Paths, android.Paths, generatedSourceInfo) { |
| |
| var info generatedSourceInfo |
| |
| var deps android.Paths |
| var rsFiles android.Paths |
| |
| var aidlRule *android.RuleBuilder |
| |
| var yaccRule_ *android.RuleBuilder |
| yaccRule := func() *android.RuleBuilder { |
| if yaccRule_ == nil { |
| yaccRule_ = android.NewRuleBuilder(pctx, ctx).Sbox(android.PathForModuleGen(ctx, "yacc"), |
| android.PathForModuleGen(ctx, "yacc.sbox.textproto")) |
| } |
| return yaccRule_ |
| } |
| |
| for i, srcFile := range srcFiles { |
| switch srcFile.Ext() { |
| case ".y": |
| cFile := android.GenPathWithExt(ctx, "yacc", srcFile, "c") |
| srcFiles[i] = cFile |
| deps = append(deps, genYacc(ctx, yaccRule(), srcFile, cFile, buildFlags.yacc)...) |
| case ".yy": |
| cppFile := android.GenPathWithExt(ctx, "yacc", srcFile, "cpp") |
| srcFiles[i] = cppFile |
| deps = append(deps, genYacc(ctx, yaccRule(), srcFile, cppFile, buildFlags.yacc)...) |
| case ".l": |
| cFile := android.GenPathWithExt(ctx, "lex", srcFile, "c") |
| srcFiles[i] = cFile |
| genLex(ctx, srcFile, cFile, buildFlags.lex) |
| case ".ll": |
| cppFile := android.GenPathWithExt(ctx, "lex", srcFile, "cpp") |
| srcFiles[i] = cppFile |
| genLex(ctx, srcFile, cppFile, buildFlags.lex) |
| case ".proto": |
| ccFile, headerFile := genProto(ctx, srcFile, buildFlags) |
| srcFiles[i] = ccFile |
| info.protoHeaders = append(info.protoHeaders, headerFile) |
| // Use the generated header as an order only dep to ensure that it is up to date when needed. |
| info.protoOrderOnlyDeps = append(info.protoOrderOnlyDeps, headerFile) |
| case ".aidl": |
| if aidlRule == nil { |
| aidlRule = android.NewRuleBuilder(pctx, ctx).Sbox(android.PathForModuleGen(ctx, "aidl"), |
| android.PathForModuleGen(ctx, "aidl.sbox.textproto")) |
| } |
| cppFile, aidlHeaders := genAidl(ctx, aidlRule, srcFile, buildFlags.aidlFlags) |
| srcFiles[i] = cppFile |
| |
| info.aidlHeaders = append(info.aidlHeaders, aidlHeaders...) |
| // Use the generated headers as order only deps to ensure that they are up to date when |
| // needed. |
| // TODO: Reduce the size of the ninja file by using one order only dep for the whole rule |
| info.aidlOrderOnlyDeps = append(info.aidlOrderOnlyDeps, aidlHeaders...) |
| case ".rscript", ".fs": |
| cppFile := rsGeneratedCppFile(ctx, srcFile) |
| rsFiles = append(rsFiles, srcFiles[i]) |
| srcFiles[i] = cppFile |
| case ".sysprop": |
| cppFile, headerFiles := genSysprop(ctx, srcFile) |
| srcFiles[i] = cppFile |
| info.syspropHeaders = append(info.syspropHeaders, headerFiles...) |
| // Use the generated headers as order only deps to ensure that they are up to date when |
| // needed. |
| info.syspropOrderOnlyDeps = append(info.syspropOrderOnlyDeps, headerFiles...) |
| } |
| } |
| |
| if aidlRule != nil { |
| aidlRule.Build("aidl", "gen aidl") |
| } |
| |
| if yaccRule_ != nil { |
| yaccRule_.Build("yacc", "gen yacc") |
| } |
| |
| deps = append(deps, info.protoOrderOnlyDeps...) |
| deps = append(deps, info.aidlOrderOnlyDeps...) |
| deps = append(deps, info.syspropOrderOnlyDeps...) |
| |
| if len(rsFiles) > 0 { |
| deps = append(deps, rsGenerateCpp(ctx, rsFiles, buildFlags.rsFlags)...) |
| } |
| |
| return srcFiles, deps, info |
| } |