34cc69e4bf
This centralizes verification and common operations, like converting the
path to a source file to the path for a built object.
It also embeds the configuration knowledge into the path, so that we can
remove "${SrcDir}/path" from the ninja file. When SrcDir is '.', that
leads to paths like './path' instead of just 'path' like make is doing,
causing differences in compiled binaries.
Change-Id: Ib4e8910a6e867ce1b7b420d927c04f1142a7589e
101 lines
2.9 KiB
Go
101 lines
2.9 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/common"
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)
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func init() {
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pctx.SourcePathVariable("lexCmd", "prebuilts/misc/${HostPrebuiltTag}/flex/flex-2.5.39")
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pctx.SourcePathVariable("yaccCmd", "prebuilts/misc/${HostPrebuiltTag}/bison/bison")
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pctx.SourcePathVariable("yaccDataDir", "external/bison/data")
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}
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var (
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yacc = pctx.StaticRule("yacc",
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blueprint.RuleParams{
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Command: "BISON_PKGDATADIR=$yaccDataDir $yaccCmd -d $yaccFlags -o $cppFile $in && " +
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"cp -f $hppFile $hFile",
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CommandDeps: []string{"$yaccCmd"},
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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 $in",
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CommandDeps: []string{"$lexCmd"},
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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 common.Path, yaccFlags string) (cppFile, headerFile common.ModuleGenPath) {
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cppFile = common.GenPathWithExt(ctx, yaccFile, "cpp")
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hppFile := common.GenPathWithExt(ctx, yaccFile, "hpp")
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headerFile = common.GenPathWithExt(ctx, yaccFile, "h")
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ctx.ModuleBuild(pctx, common.ModuleBuildParams{
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Rule: yacc,
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Outputs: common.WritablePaths{cppFile, 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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"cppFile": cppFile.String(),
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"hppFile": hppFile.String(),
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"hFile": headerFile.String(),
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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 common.Path) (cppFile common.ModuleGenPath) {
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cppFile = common.GenPathWithExt(ctx, lexFile, "cpp")
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ctx.ModuleBuild(pctx, common.ModuleBuildParams{
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Rule: lex,
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Output: cppFile,
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Input: lexFile,
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})
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return cppFile
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}
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func genSources(ctx common.AndroidModuleContext, srcFiles common.Paths,
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buildFlags builderFlags) (common.Paths, common.Paths) {
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var deps common.Paths
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for i, srcFile := range srcFiles {
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switch srcFile.Ext() {
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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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