139 lines
4.2 KiB
Go
139 lines
4.2 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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// This file generates the final rules for compiling all C/C++. All properties related to
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// compiling should have been translated into builderFlags or another argument to the Transform*
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// functions.
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import (
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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/misc/${config.HostPrebuiltTag}/flex/flex-2.5.39")
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pctx.SourcePathVariable("yaccCmd", "prebuilts/misc/${config.HostPrebuiltTag}/bison/bison")
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pctx.SourcePathVariable("yaccDataDir", "external/bison/data")
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pctx.HostBinToolVariable("aidlCmd", "aidl-cpp")
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}
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var (
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yacc = pctx.AndroidStaticRule("yacc",
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blueprint.RuleParams{
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Command: "BISON_PKGDATADIR=$yaccDataDir $yaccCmd -d $yaccFlags --defines=$hFile -o $out $in",
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CommandDeps: []string{"$yaccCmd"},
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Description: "yacc $out",
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},
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"yaccFlags", "hFile")
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lex = pctx.AndroidStaticRule("lex",
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blueprint.RuleParams{
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Command: "$lexCmd -o$out $in",
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CommandDeps: []string{"$lexCmd"},
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Description: "lex $out",
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})
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aidl = pctx.AndroidStaticRule("aidl",
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blueprint.RuleParams{
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Command: "$aidlCmd -d${out}.d -ninja $aidlFlags $in $outDir $out",
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CommandDeps: []string{"$aidlCmd"},
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Depfile: "${out}.d",
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Deps: blueprint.DepsGCC,
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Description: "aidl $out",
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},
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"aidlFlags", "outDir")
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)
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func genYacc(ctx android.ModuleContext, yaccFile android.Path, outFile android.ModuleGenPath, yaccFlags string) (headerFile android.ModuleGenPath) {
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headerFile = android.GenPathWithExt(ctx, "yacc", yaccFile, "h")
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ctx.ModuleBuild(pctx, android.ModuleBuildParams{
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Rule: yacc,
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Output: outFile,
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ImplicitOutput: headerFile,
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Input: yaccFile,
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Args: map[string]string{
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"yaccFlags": yaccFlags,
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"hFile": headerFile.String(),
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},
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})
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return headerFile
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}
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func genAidl(ctx android.ModuleContext, aidlFile android.Path, outFile android.ModuleGenPath, aidlFlags string) android.Paths {
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ctx.ModuleBuild(pctx, android.ModuleBuildParams{
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Rule: aidl,
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Output: outFile,
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Input: aidlFile,
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Args: map[string]string{
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"aidlFlags": aidlFlags,
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"outDir": android.PathForModuleGen(ctx, "aidl").String(),
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},
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})
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// TODO: This should return the generated headers, not the source file.
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return android.Paths{outFile}
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}
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func genLex(ctx android.ModuleContext, lexFile android.Path, outFile android.ModuleGenPath) {
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ctx.ModuleBuild(pctx, android.ModuleBuildParams{
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Rule: lex,
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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 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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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, srcFile, cFile, buildFlags.yaccFlags))
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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, srcFile, cppFile, buildFlags.yaccFlags))
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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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cppFile, headerFile := genProto(ctx, srcFile, buildFlags.protoFlags)
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srcFiles[i] = cppFile
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deps = append(deps, headerFile)
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case ".aidl":
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cppFile := android.GenPathWithExt(ctx, "aidl", srcFile, "cpp")
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srcFiles[i] = cppFile
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deps = append(deps, genAidl(ctx, srcFile, cppFile, buildFlags.aidlFlags)...)
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}
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}
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return srcFiles, deps
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}
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