340 lines
11 KiB
Go
340 lines
11 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/${config.HostPrebuiltTag}/bin/flex")
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pctx.SourcePathVariable("m4Cmd", "prebuilts/build-tools/${config.HostPrebuiltTag}/bin/m4")
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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: "M4=$m4Cmd $lexCmd $flags -o$out $in",
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CommandDeps: []string{"$lexCmd", "$m4Cmd"},
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}, "flags")
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sysprop = pctx.AndroidStaticRule("sysprop",
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blueprint.RuleParams{
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Command: "$syspropCmd --header-dir=$headerOutDir --public-header-dir=$publicOutDir " +
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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", "publicOutDir", "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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// android.sboxPathForOutput(outDir, outDir) returns the sbox placeholder for the out
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// directory itself, without any filename appended.
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sboxOutDir := cmd.PathForOutput(outDir)
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sedCmd := "sed -i.bak 's#" + sboxOutDir + "#" + 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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FlagWithInput("M4=", ctx.Config().PrebuiltBuildTool(ctx, "m4")).
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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, aidlFlags string) (cppFile android.OutputPath, headerFiles 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 := baseName
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// TODO(b/111362593): aidl_to_cpp_common.cpp uses heuristics to figure out if
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// an interface name has a leading I. Those same heuristics have been
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// moved here.
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if len(baseName) >= 2 && baseName[0] == 'I' &&
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strings.ToUpper(baseName)[1] == baseName[1] {
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shortName = strings.TrimPrefix(baseName, "I")
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}
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outDir := android.PathForModuleGen(ctx, "aidl")
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cppFile = outDir.Join(ctx, aidlPackage, baseName+".cpp")
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depFile := outDir.Join(ctx, aidlPackage, baseName+".cpp.d")
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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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baseDir := strings.TrimSuffix(aidlFile.String(), aidlFile.Rel())
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if baseDir != "" {
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aidlFlags += " -I" + baseDir
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}
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cmd := rule.Command()
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cmd.BuiltTool("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(cppFile).
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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 cppFile, 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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type LexProperties struct {
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// list of module-specific flags that will be used for .l and .ll compiles
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Flags []string
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}
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func genLex(ctx android.ModuleContext, lexFile android.Path, outFile android.ModuleGenPath, props *LexProperties) {
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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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}
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flagsString := strings.Join(flags[:], " ")
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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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Args: map[string]string{"flags": flagsString},
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})
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}
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func genSysprop(ctx android.ModuleContext, syspropFile android.Path) (android.Path, android.Paths) {
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headerFile := android.PathForModuleGen(ctx, "sysprop", "include", syspropFile.Rel()+".h")
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publicHeaderFile := android.PathForModuleGen(ctx, "sysprop/public", "include", syspropFile.Rel()+".h")
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cppFile := android.PathForModuleGen(ctx, "sysprop", syspropFile.Rel()+".cpp")
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headers := android.WritablePaths{headerFile, publicHeaderFile}
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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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ImplicitOutputs: headers,
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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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"publicOutDir": filepath.Dir(publicHeaderFile.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, headers.Paths()
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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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// Used to communicate information from the genSources method back to the library code that uses
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// it.
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type generatedSourceInfo struct {
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// The headers created from .proto files
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protoHeaders android.Paths
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// The files that can be used as order only dependencies in order to ensure that the proto header
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// files are up to date.
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protoOrderOnlyDeps android.Paths
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// The headers created from .aidl files
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aidlHeaders android.Paths
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// The files that can be used as order only dependencies in order to ensure that the aidl header
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// files are up to date.
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aidlOrderOnlyDeps android.Paths
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// The headers created from .sysprop files
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syspropHeaders android.Paths
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// The files that can be used as order only dependencies in order to ensure that the sysprop
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// header files are up to date.
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syspropOrderOnlyDeps android.Paths
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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, generatedSourceInfo) {
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var info generatedSourceInfo
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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(pctx, ctx).Sbox(android.PathForModuleGen(ctx, "yacc"),
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android.PathForModuleGen(ctx, "yacc.sbox.textproto"))
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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, buildFlags.lex)
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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, buildFlags.lex)
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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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info.protoHeaders = append(info.protoHeaders, headerFile)
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// Use the generated header as an order only dep to ensure that it is up to date when needed.
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info.protoOrderOnlyDeps = append(info.protoOrderOnlyDeps, headerFile)
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case ".aidl":
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if aidlRule == nil {
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aidlRule = android.NewRuleBuilder(pctx, ctx).Sbox(android.PathForModuleGen(ctx, "aidl"),
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android.PathForModuleGen(ctx, "aidl.sbox.textproto"))
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}
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cppFile, aidlHeaders := genAidl(ctx, aidlRule, srcFile, buildFlags.aidlFlags)
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srcFiles[i] = cppFile
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info.aidlHeaders = append(info.aidlHeaders, aidlHeaders...)
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// Use the generated headers as order only deps to ensure that they are up to date when
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// needed.
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// TODO: Reduce the size of the ninja file by using one order only dep for the whole rule
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info.aidlOrderOnlyDeps = append(info.aidlOrderOnlyDeps, aidlHeaders...)
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case ".rscript", ".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, headerFiles := genSysprop(ctx, srcFile)
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srcFiles[i] = cppFile
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info.syspropHeaders = append(info.syspropHeaders, headerFiles...)
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// Use the generated headers as order only deps to ensure that they are up to date when
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// needed.
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info.syspropOrderOnlyDeps = append(info.syspropOrderOnlyDeps, headerFiles...)
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}
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}
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if aidlRule != nil {
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aidlRule.Build("aidl", "gen aidl")
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}
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if yaccRule_ != nil {
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yaccRule_.Build("yacc", "gen yacc")
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}
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deps = append(deps, info.protoOrderOnlyDeps...)
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deps = append(deps, info.aidlOrderOnlyDeps...)
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deps = append(deps, info.syspropOrderOnlyDeps...)
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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, info
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}
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