Files
build_soong/java/gen.go
Colin Cross af05017b75 Add support for .srcjar files from genrules and srcs
Allow srcs to contain .srcjar files, which will be extracted just
before javac.  Also allow genrules and generated sources to directly
return .srcjar files.

Test: m checkbuild
Change-Id: Ie4cf60ecb9d2ec63a4c2275221544203b1383597
2017-11-17 11:22:08 -08:00

145 lines
4.0 KiB
Go

// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package java
// This file generates the final rules for compiling all C/C++. All properties related to
// compiling should have been translated into builderFlags or another argument to the Transform*
// functions.
import (
"github.com/google/blueprint"
"android/soong/android"
)
func init() {
pctx.HostBinToolVariable("aidlCmd", "aidl")
pctx.SourcePathVariable("logtagsCmd", "build/tools/java-event-log-tags.py")
pctx.SourcePathVariable("mergeLogtagsCmd", "build/tools/merge-event-log-tags.py")
pctx.IntermediatesPathVariable("allLogtagsFile", "all-event-log-tags.txt")
}
var (
aidl = pctx.AndroidStaticRule("aidl",
blueprint.RuleParams{
Command: "$aidlCmd -d$depFile $aidlFlags $in $out",
CommandDeps: []string{"$aidlCmd"},
},
"depFile", "aidlFlags")
logtags = pctx.AndroidStaticRule("logtags",
blueprint.RuleParams{
Command: "$logtagsCmd -o $out $in $allLogtagsFile",
CommandDeps: []string{"$logtagsCmd"},
})
mergeLogtags = pctx.AndroidStaticRule("mergeLogtags",
blueprint.RuleParams{
Command: "$mergeLogtagsCmd -o $out $in",
CommandDeps: []string{"$mergeLogtagsCmd"},
})
)
func genAidl(ctx android.ModuleContext, aidlFile android.Path, aidlFlags string) android.Path {
javaFile := android.GenPathWithExt(ctx, "aidl", aidlFile, "java")
depFile := javaFile.String() + ".d"
ctx.Build(pctx, android.BuildParams{
Rule: aidl,
Description: "aidl " + aidlFile.Rel(),
Output: javaFile,
Input: aidlFile,
Args: map[string]string{
"depFile": depFile,
"aidlFlags": aidlFlags,
},
})
return javaFile
}
func genLogtags(ctx android.ModuleContext, logtagsFile android.Path) android.Path {
javaFile := android.GenPathWithExt(ctx, "logtags", logtagsFile, "java")
ctx.Build(pctx, android.BuildParams{
Rule: logtags,
Description: "logtags " + logtagsFile.Rel(),
Output: javaFile,
Input: logtagsFile,
})
return javaFile
}
func (j *Module) genSources(ctx android.ModuleContext, srcFiles android.Paths,
flags javaBuilderFlags) android.Paths {
var protoFiles android.Paths
outSrcFiles := make(android.Paths, 0, len(srcFiles))
for _, srcFile := range srcFiles {
switch srcFile.Ext() {
case ".aidl":
javaFile := genAidl(ctx, srcFile, flags.aidlFlags)
outSrcFiles = append(outSrcFiles, javaFile)
case ".logtags":
j.logtagsSrcs = append(j.logtagsSrcs, srcFile)
javaFile := genLogtags(ctx, srcFile)
outSrcFiles = append(outSrcFiles, javaFile)
case ".proto":
protoFiles = append(protoFiles, srcFile)
default:
outSrcFiles = append(outSrcFiles, srcFile)
}
}
if len(protoFiles) > 0 {
protoSrcJar := android.PathForModuleGen(ctx, "proto.srcjar")
genProto(ctx, protoSrcJar, protoFiles,
flags.protoFlags, flags.protoOutFlag, "")
outSrcFiles = append(outSrcFiles, protoSrcJar)
}
return outSrcFiles
}
func LogtagsSingleton() blueprint.Singleton {
return &logtagsSingleton{}
}
type logtagsProducer interface {
logtags() android.Paths
}
type logtagsSingleton struct{}
func (l *logtagsSingleton) GenerateBuildActions(ctx blueprint.SingletonContext) {
var allLogtags android.Paths
ctx.VisitAllModules(func(module blueprint.Module) {
if logtags, ok := module.(logtagsProducer); ok {
allLogtags = append(allLogtags, logtags.logtags()...)
}
})
ctx.Build(pctx, blueprint.BuildParams{
Rule: mergeLogtags,
Description: "merge logtags",
Outputs: []string{"$allLogtagsFile"},
Inputs: allLogtags.Strings(),
})
}