1945a4b47d
This fixes an incremental build issue where we didn't clean up old aidl header files (or necessarily notice that they were updated). We do this by declaring the header files as outputs in the build graph, but this means that the src file name needs to be convertible to the aidl package name, as that's how the header file paths are created. In many cases, filegroups can be used to strip path prefixes from the aidl files. Bug: 112114177 Test: treehugger Change-Id: If534ff3dbfac329dea9a7402e30be74495754160
267 lines
8 KiB
Go
267 lines
8 KiB
Go
// Copyright 2015 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cc
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import (
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"path/filepath"
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"strings"
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"github.com/google/blueprint"
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"android/soong/android"
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)
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func init() {
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pctx.SourcePathVariable("lexCmd", "prebuilts/build-tools/${config.HostPrebuiltTag}/bin/flex")
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pctx.HostBinToolVariable("aidlCmd", "aidl-cpp")
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pctx.HostBinToolVariable("syspropCmd", "sysprop_cpp")
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}
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var (
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lex = pctx.AndroidStaticRule("lex",
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blueprint.RuleParams{
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Command: "$lexCmd -o$out $in",
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CommandDeps: []string{"$lexCmd"},
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})
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sysprop = pctx.AndroidStaticRule("sysprop",
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blueprint.RuleParams{
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Command: "$syspropCmd --header-dir=$headerOutDir --system-header-dir=$systemOutDir " +
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"--source-dir=$srcOutDir --include-name=$includeName $in",
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CommandDeps: []string{"$syspropCmd"},
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},
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"headerOutDir", "systemOutDir", "srcOutDir", "includeName")
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windmc = pctx.AndroidStaticRule("windmc",
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blueprint.RuleParams{
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Command: "$windmcCmd -r$$(dirname $out) -h$$(dirname $out) $in",
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CommandDeps: []string{"$windmcCmd"},
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},
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"windmcCmd")
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)
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type YaccProperties struct {
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// list of module-specific flags that will be used for .y and .yy compiles
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Flags []string
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// whether the yacc files will produce a location.hh file
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Gen_location_hh *bool
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// whether the yacc files will product a position.hh file
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Gen_position_hh *bool
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}
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func genYacc(ctx android.ModuleContext, rule *android.RuleBuilder, yaccFile android.Path,
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outFile android.ModuleGenPath, props *YaccProperties) (headerFiles android.Paths) {
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outDir := android.PathForModuleGen(ctx, "yacc")
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headerFile := android.GenPathWithExt(ctx, "yacc", yaccFile, "h")
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ret := android.Paths{headerFile}
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cmd := rule.Command()
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// Fix up #line markers to not use the sbox temporary directory
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sedCmd := "sed -i.bak 's#__SBOX_OUT_DIR__#" + outDir.String() + "#'"
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rule.Command().Text(sedCmd).Input(outFile)
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rule.Command().Text(sedCmd).Input(headerFile)
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var flags []string
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if props != nil {
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flags = props.Flags
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if Bool(props.Gen_location_hh) {
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locationHeader := outFile.InSameDir(ctx, "location.hh")
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ret = append(ret, locationHeader)
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cmd.ImplicitOutput(locationHeader)
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rule.Command().Text(sedCmd).Input(locationHeader)
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}
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if Bool(props.Gen_position_hh) {
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positionHeader := outFile.InSameDir(ctx, "position.hh")
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ret = append(ret, positionHeader)
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cmd.ImplicitOutput(positionHeader)
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rule.Command().Text(sedCmd).Input(positionHeader)
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}
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}
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cmd.Text("BISON_PKGDATADIR=prebuilts/build-tools/common/bison").
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Tool(ctx.Config().PrebuiltBuildTool(ctx, "bison")).
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Flag("-d").
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Flags(flags).
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FlagWithOutput("--defines=", headerFile).
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Flag("-o").Output(outFile).Input(yaccFile)
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return ret
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}
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func genAidl(ctx android.ModuleContext, rule *android.RuleBuilder, aidlFile android.Path,
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outFile, depFile android.ModuleGenPath, aidlFlags string) android.Paths {
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aidlPackage := strings.TrimSuffix(aidlFile.Rel(), aidlFile.Base())
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baseName := strings.TrimSuffix(aidlFile.Base(), aidlFile.Ext())
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shortName := strings.TrimPrefix(baseName, "I")
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outDir := android.PathForModuleGen(ctx, "aidl")
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headerI := outDir.Join(ctx, aidlPackage, baseName+".h")
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headerBn := outDir.Join(ctx, aidlPackage, "Bn"+shortName+".h")
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headerBp := outDir.Join(ctx, aidlPackage, "Bp"+shortName+".h")
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cmd := rule.Command()
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cmd.Tool(ctx.Config().HostToolPath(ctx, "aidl-cpp")).
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FlagWithDepFile("-d", depFile).
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Flag("--ninja").
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Flag(aidlFlags).
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Input(aidlFile).
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OutputDir().
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Output(outFile).
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ImplicitOutputs(android.WritablePaths{
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headerI,
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headerBn,
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headerBp,
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})
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return android.Paths{
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headerI,
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headerBn,
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headerBp,
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}
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}
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func genLex(ctx android.ModuleContext, lexFile android.Path, outFile android.ModuleGenPath) {
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ctx.Build(pctx, android.BuildParams{
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Rule: lex,
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Description: "lex " + lexFile.Rel(),
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Output: outFile,
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Input: lexFile,
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})
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}
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func genSysprop(ctx android.ModuleContext, syspropFile android.Path) (android.Path, android.Path) {
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headerFile := android.PathForModuleGen(ctx, "sysprop", "include", syspropFile.Rel()+".h")
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systemHeaderFile := android.PathForModuleGen(ctx, "sysprop/system", "include", syspropFile.Rel()+".h")
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cppFile := android.PathForModuleGen(ctx, "sysprop", syspropFile.Rel()+".cpp")
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ctx.Build(pctx, android.BuildParams{
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Rule: sysprop,
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Description: "sysprop " + syspropFile.Rel(),
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Output: cppFile,
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ImplicitOutput: headerFile,
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Input: syspropFile,
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Args: map[string]string{
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"headerOutDir": filepath.Dir(headerFile.String()),
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"systemOutDir": filepath.Dir(systemHeaderFile.String()),
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"srcOutDir": filepath.Dir(cppFile.String()),
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"includeName": syspropFile.Rel() + ".h",
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},
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})
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return cppFile, headerFile
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}
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func genWinMsg(ctx android.ModuleContext, srcFile android.Path, flags builderFlags) (android.Path, android.Path) {
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headerFile := android.GenPathWithExt(ctx, "windmc", srcFile, "h")
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rcFile := android.GenPathWithExt(ctx, "windmc", srcFile, "rc")
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windmcCmd := gccCmd(flags.toolchain, "windmc")
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ctx.Build(pctx, android.BuildParams{
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Rule: windmc,
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Description: "windmc " + srcFile.Rel(),
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Output: rcFile,
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ImplicitOutput: headerFile,
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Input: srcFile,
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Args: map[string]string{
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"windmcCmd": windmcCmd,
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},
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})
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return rcFile, headerFile
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}
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func genSources(ctx android.ModuleContext, srcFiles android.Paths,
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buildFlags builderFlags) (android.Paths, android.Paths) {
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var deps android.Paths
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var rsFiles android.Paths
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var aidlRule *android.RuleBuilder
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var yaccRule_ *android.RuleBuilder
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yaccRule := func() *android.RuleBuilder {
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if yaccRule_ == nil {
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yaccRule_ = android.NewRuleBuilder().Sbox(android.PathForModuleGen(ctx, "yacc"))
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}
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return yaccRule_
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}
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for i, srcFile := range srcFiles {
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switch srcFile.Ext() {
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case ".y":
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cFile := android.GenPathWithExt(ctx, "yacc", srcFile, "c")
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srcFiles[i] = cFile
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deps = append(deps, genYacc(ctx, yaccRule(), srcFile, cFile, buildFlags.yacc)...)
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case ".yy":
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cppFile := android.GenPathWithExt(ctx, "yacc", srcFile, "cpp")
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srcFiles[i] = cppFile
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deps = append(deps, genYacc(ctx, yaccRule(), srcFile, cppFile, buildFlags.yacc)...)
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case ".l":
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cFile := android.GenPathWithExt(ctx, "lex", srcFile, "c")
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srcFiles[i] = cFile
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genLex(ctx, srcFile, cFile)
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case ".ll":
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cppFile := android.GenPathWithExt(ctx, "lex", srcFile, "cpp")
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srcFiles[i] = cppFile
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genLex(ctx, srcFile, cppFile)
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case ".proto":
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ccFile, headerFile := genProto(ctx, srcFile, buildFlags)
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srcFiles[i] = ccFile
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deps = append(deps, headerFile)
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case ".aidl":
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if aidlRule == nil {
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aidlRule = android.NewRuleBuilder().Sbox(android.PathForModuleGen(ctx, "aidl"))
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}
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cppFile := android.GenPathWithExt(ctx, "aidl", srcFile, "cpp")
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depFile := android.GenPathWithExt(ctx, "aidl", srcFile, "cpp.d")
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srcFiles[i] = cppFile
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deps = append(deps, genAidl(ctx, aidlRule, srcFile, cppFile, depFile, buildFlags.aidlFlags)...)
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case ".rs", ".fs":
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cppFile := rsGeneratedCppFile(ctx, srcFile)
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rsFiles = append(rsFiles, srcFiles[i])
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srcFiles[i] = cppFile
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case ".mc":
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rcFile, headerFile := genWinMsg(ctx, srcFile, buildFlags)
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srcFiles[i] = rcFile
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deps = append(deps, headerFile)
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case ".sysprop":
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cppFile, headerFile := genSysprop(ctx, srcFile)
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srcFiles[i] = cppFile
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deps = append(deps, headerFile)
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}
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}
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if aidlRule != nil {
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aidlRule.Build(pctx, ctx, "aidl", "gen aidl")
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}
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if yaccRule_ != nil {
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yaccRule_.Build(pctx, ctx, "yacc", "gen yacc")
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}
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if len(rsFiles) > 0 {
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deps = append(deps, rsGenerateCpp(ctx, rsFiles, buildFlags.rsFlags)...)
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}
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return srcFiles, deps
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}
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