109 lines
3.1 KiB
Go
109 lines
3.1 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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"path/filepath"
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"github.com/google/blueprint"
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"github.com/google/blueprint/pathtools"
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"android/soong/common"
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)
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func init() {
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pctx.StaticVariable("lexCmd", "${SrcDir}/prebuilts/misc/${HostPrebuiltTag}/flex/flex-2.5.39")
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pctx.StaticVariable("yaccCmd", "${SrcDir}/prebuilts/misc/${HostPrebuiltTag}/bison/bison")
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pctx.StaticVariable("yaccDataDir", "${SrcDir}/external/bison/data")
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}
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var (
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yacc = pctx.StaticRule("yacc",
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blueprint.RuleParams{
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Command: "BISON_PKGDATADIR=$yaccDataDir $yaccCmd -d $yaccFlags -o $cppFile $in && " +
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"cp -f $hppFile $hFile",
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Description: "yacc $out",
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},
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"yaccFlags", "cppFile", "hppFile", "hFile")
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lex = pctx.StaticRule("lex",
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blueprint.RuleParams{
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Command: "$lexCmd -o$out $in",
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Description: "lex $out",
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})
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)
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func genYacc(ctx common.AndroidModuleContext, yaccFile, yaccFlags string) (cppFile, headerFile string) {
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cppFile = common.SrcDirRelPath(ctx, yaccFile)
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cppFile = filepath.Join(common.ModuleGenDir(ctx), cppFile)
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cppFile = pathtools.ReplaceExtension(cppFile, "cpp")
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hppFile := pathtools.ReplaceExtension(cppFile, "hpp")
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headerFile = pathtools.ReplaceExtension(cppFile, "h")
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ctx.Build(pctx, blueprint.BuildParams{
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Rule: yacc,
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Outputs: []string{cppFile, headerFile},
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Inputs: []string{yaccFile},
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Implicits: []string{"$yaccCmd"},
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Args: map[string]string{
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"yaccFlags": yaccFlags,
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"cppFile": cppFile,
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"hppFile": hppFile,
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"hFile": headerFile,
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},
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})
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return cppFile, headerFile
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}
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func genLex(ctx common.AndroidModuleContext, lexFile string) (cppFile string) {
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cppFile = common.SrcDirRelPath(ctx, lexFile)
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cppFile = filepath.Join(common.ModuleGenDir(ctx), cppFile)
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cppFile = pathtools.ReplaceExtension(cppFile, "cpp")
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ctx.Build(pctx, blueprint.BuildParams{
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Rule: lex,
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Outputs: []string{cppFile},
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Inputs: []string{lexFile},
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Implicits: []string{"$lexCmd"},
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})
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return cppFile
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}
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func genSources(ctx common.AndroidModuleContext, srcFiles []string,
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buildFlags builderFlags) ([]string, []string) {
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var deps []string
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for i, srcFile := range srcFiles {
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switch filepath.Ext(srcFile) {
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case ".y", ".yy":
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cppFile, headerFile := genYacc(ctx, srcFile, buildFlags.yaccFlags)
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srcFiles[i] = cppFile
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deps = append(deps, headerFile)
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case ".l", ".ll":
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cppFile := genLex(ctx, srcFile)
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srcFiles[i] = cppFile
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}
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}
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return srcFiles, deps
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}
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