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// Copyright 2017 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
import (
"strings"
"github.com/google/blueprint"
"android/soong/android"
)
var d8 = pctx.AndroidStaticRule("d8",
blueprint.RuleParams{
Command: `rm -rf "$outDir" && mkdir -p "$outDir" && ` +
`${config.D8Cmd} --output $outDir $dxFlags $in && ` +
`${config.SoongZipCmd} -o $outDir/classes.dex.jar -C $outDir -D $outDir && ` +
`${config.MergeZipsCmd} -D -stripFile "*.class" $out $outDir/classes.dex.jar $in`,
CommandDeps: []string{
"${config.D8Cmd}",
"${config.SoongZipCmd}",
"${config.MergeZipsCmd}",
},
},
"outDir", "dxFlags")
var r8 = pctx.AndroidStaticRule("r8",
blueprint.RuleParams{
Command: `rm -rf "$outDir" && mkdir -p "$outDir" && ` +
`${config.R8Cmd} -injars $in --output $outDir ` +
`--force-proguard-compatibility ` +
`-printmapping $outDict ` +
`$dxFlags $r8Flags && ` +
`${config.SoongZipCmd} -o $outDir/classes.dex.jar -C $outDir -D $outDir && ` +
`${config.MergeZipsCmd} -D -stripFile "*.class" $out $outDir/classes.dex.jar $in`,
CommandDeps: []string{
"${config.R8Cmd}",
"${config.SoongZipCmd}",
"${config.MergeZipsCmd}",
},
},
"outDir", "outDict", "dxFlags", "r8Flags")
func (j *Module) dxFlags(ctx android.ModuleContext) []string {
flags := j.deviceProperties.Dxflags
// Translate all the DX flags to D8 ones until all the build files have been migrated
// to D8 flags. See: b/69377755
flags = android.RemoveListFromList(flags,
[]string{"--core-library", "--dex", "--multi-dex"})
if ctx.Config().Getenv("NO_OPTIMIZE_DX") != "" {
flags = append(flags, "--debug")
}
if ctx.Config().Getenv("GENERATE_DEX_DEBUG") != "" {
flags = append(flags,
"--debug",
"--verbose")
}
minSdkVersion, err := sdkVersionToNumberAsString(ctx, j.minSdkVersion())
if err != nil {
ctx.PropertyErrorf("min_sdk_version", "%s", err)
}
flags = append(flags, "--min-api "+minSdkVersion)
return flags
}
func (j *Module) r8Flags(ctx android.ModuleContext, flags javaBuilderFlags) (r8Flags []string, r8Deps android.Paths) {
opt := j.deviceProperties.Optimize
// When an app contains references to APIs that are not in the SDK specified by
// its LOCAL_SDK_VERSION for example added by support library or by runtime
// classes added by desugaring, we artifically raise the "SDK version" "linked" by
// ProGuard, to
// - suppress ProGuard warnings of referencing symbols unknown to the lower SDK version.
// - prevent ProGuard stripping subclass in the support library that extends class added in the higher SDK version.
// See b/20667396
var proguardRaiseDeps classpath
ctx.VisitDirectDepsWithTag(proguardRaiseTag, func(dep android.Module) {
proguardRaiseDeps = append(proguardRaiseDeps, dep.(Dependency).HeaderJars()...)
})
r8Flags = append(r8Flags, proguardRaiseDeps.FormJavaClassPath("-libraryjars"))
r8Flags = append(r8Flags, flags.bootClasspath.FormJavaClassPath("-libraryjars"))
r8Flags = append(r8Flags, flags.classpath.FormJavaClassPath("-libraryjars"))
r8Flags = append(r8Flags, "-forceprocessing")
flagFiles := android.Paths{
android.PathForSource(ctx, "build/make/core/proguard.flags"),
}
if j.shouldInstrumentStatic(ctx) {
flagFiles = append(flagFiles,
android.PathForSource(ctx, "build/make/core/proguard.jacoco.flags"))
}
flagFiles = append(flagFiles, j.extraProguardFlagFiles...)
// TODO(ccross): static android library proguard files
r8Flags = append(r8Flags, android.JoinWithPrefix(flagFiles.Strings(), "-include "))
r8Deps = append(r8Deps, flagFiles...)
// TODO(b/70942988): This is included from build/make/core/proguard.flags
r8Deps = append(r8Deps, android.PathForSource(ctx,
"build/make/core/proguard_basic_keeps.flags"))
r8Flags = append(r8Flags, j.deviceProperties.Optimize.Proguard_flags...)
// TODO(ccross): Don't shrink app instrumentation tests by default.
if !Bool(opt.Shrink) {
r8Flags = append(r8Flags, "-dontshrink")
}
if !Bool(opt.Optimize) {
r8Flags = append(r8Flags, "-dontoptimize")
}
// TODO(ccross): error if obufscation + app instrumentation test.
if !Bool(opt.Obfuscate) {
r8Flags = append(r8Flags, "-dontobfuscate")
}
return r8Flags, r8Deps
}
func (j *Module) compileDex(ctx android.ModuleContext, flags javaBuilderFlags,
classesJar android.Path, jarName string) android.Path {
useR8 := Bool(j.deviceProperties.Optimize.Enabled)
dxFlags := j.dxFlags(ctx)
// Compile classes.jar into classes.dex and then javalib.jar
javalibJar := android.PathForModuleOut(ctx, "dex", jarName)
outDir := android.PathForModuleOut(ctx, "dex")
if useR8 {
// TODO(ccross): if this is an instrumentation test of an obfuscated app, use the
// dictionary of the app and move the app from libraryjars to injars.
proguardDictionary := android.PathForModuleOut(ctx, "proguard_dictionary")
j.proguardDictionary = proguardDictionary
r8Flags, r8Deps := j.r8Flags(ctx, flags)
ctx.Build(pctx, android.BuildParams{
Rule: r8,
Description: "r8",
Output: javalibJar,
ImplicitOutput: proguardDictionary,
Input: classesJar,
Implicits: r8Deps,
Args: map[string]string{
"dxFlags": strings.Join(dxFlags, " "),
"r8Flags": strings.Join(r8Flags, " "),
"outDict": j.proguardDictionary.String(),
"outDir": outDir.String(),
},
})
} else {
ctx.Build(pctx, android.BuildParams{
Rule: d8,
Description: "d8",
Output: javalibJar,
Input: classesJar,
Args: map[string]string{
"dxFlags": strings.Join(dxFlags, " "),
"outDir": outDir.String(),
},
})
}
j.dexJarFile = javalibJar
return javalibJar
}
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