diff options
Diffstat (limited to 'java')
| -rw-r--r-- | java/aar.go | 12 | ||||
| -rwxr-xr-x | java/app.go | 15 | ||||
| -rw-r--r-- | java/dex.go | 14 |
3 files changed, 35 insertions, 6 deletions
diff --git a/java/aar.go b/java/aar.go index 283579280..506187959 100644 --- a/java/aar.go +++ b/java/aar.go @@ -351,6 +351,7 @@ type aaptBuildActionOptions struct { classLoaderContexts dexpreopt.ClassLoaderContextMap excludedLibs []string enforceDefaultTargetSdkVersion bool + forceNonFinalResourceIDs bool extraLinkFlags []string aconfigTextFiles android.Paths } @@ -544,7 +545,8 @@ func (a *aapt) buildActions(ctx android.ModuleContext, opts aaptBuildActionOptio if a.useResourceProcessorBusyBox(ctx) { rJar := android.PathForModuleOut(ctx, "busybox/R.jar") - resourceProcessorBusyBoxGenerateBinaryR(ctx, rTxt, a.mergedManifestFile, rJar, staticDeps, a.isLibrary, a.aaptProperties.Aaptflags) + resourceProcessorBusyBoxGenerateBinaryR(ctx, rTxt, a.mergedManifestFile, rJar, staticDeps, a.isLibrary, a.aaptProperties.Aaptflags, + opts.forceNonFinalResourceIDs) aapt2ExtractExtraPackages(ctx, extraPackages, rJar) transitiveRJars = append(transitiveRJars, rJar) a.rJar = rJar @@ -608,7 +610,8 @@ var resourceProcessorBusyBox = pctx.AndroidStaticRule("resourceProcessorBusyBox" // using Bazel's ResourceProcessorBusyBox tool, which is faster than compiling the R.java files and // supports producing classes for static dependencies that only include resources from that dependency. func resourceProcessorBusyBoxGenerateBinaryR(ctx android.ModuleContext, rTxt, manifest android.Path, - rJar android.WritablePath, transitiveDeps transitiveAarDeps, isLibrary bool, aaptFlags []string) { + rJar android.WritablePath, transitiveDeps transitiveAarDeps, isLibrary bool, aaptFlags []string, + forceNonFinalIds bool) { var args []string var deps android.Paths @@ -618,6 +621,9 @@ func resourceProcessorBusyBoxGenerateBinaryR(ctx android.ModuleContext, rTxt, ma // to ResourceProcessorBusyBox so that it can regenerate R.class files with the final resource IDs for each // package. args, deps = transitiveDeps.resourceProcessorDeps() + if forceNonFinalIds { + args = append(args, "--finalFields=false") + } } else { // When compiling a library don't pass any dependencies as it only needs to generate an R.class file for this // library. Pass --finalFields=false so that the R.class file contains non-final fields so they don't get @@ -1221,7 +1227,7 @@ func (a *AARImport) GenerateAndroidBuildActions(ctx android.ModuleContext) { linkFlags, linkDeps, nil, overlayRes, transitiveAssets, nil, nil) a.rJar = android.PathForModuleOut(ctx, "busybox/R.jar") - resourceProcessorBusyBoxGenerateBinaryR(ctx, a.rTxt, a.manifest, a.rJar, nil, true, nil) + resourceProcessorBusyBoxGenerateBinaryR(ctx, a.rTxt, a.manifest, a.rJar, nil, true, nil, false) aapt2ExtractExtraPackages(ctx, a.extraAaptPackagesFile, a.rJar) diff --git a/java/app.go b/java/app.go index 4656888b4..2abc45107 100755 --- a/java/app.go +++ b/java/app.go @@ -519,12 +519,15 @@ func (a *AndroidApp) aaptBuildActions(ctx android.ModuleContext) { a.aapt.defaultManifestVersion = android.DefaultUpdatableModuleVersion } + // Use non final ids if we are doing optimized shrinking and are using R8. + nonFinalIds := Bool(a.dexProperties.Optimize.Optimized_shrink_resources) && a.dexer.effectiveOptimizeEnabled() a.aapt.buildActions(ctx, aaptBuildActionOptions{ sdkContext: android.SdkContext(a), classLoaderContexts: a.classLoaderContexts, excludedLibs: a.usesLibraryProperties.Exclude_uses_libs, enforceDefaultTargetSdkVersion: a.enforceDefaultTargetSdkVersion(), + forceNonFinalResourceIDs: nonFinalIds, extraLinkFlags: aaptLinkFlags, aconfigTextFiles: getAconfigFilePaths(ctx), }, @@ -547,7 +550,13 @@ func (a *AndroidApp) proguardBuildActions(ctx android.ModuleContext) { staticLibProguardFlagFiles = android.FirstUniquePaths(staticLibProguardFlagFiles) a.Module.extraProguardFlagsFiles = append(a.Module.extraProguardFlagsFiles, staticLibProguardFlagFiles...) - a.Module.extraProguardFlagsFiles = append(a.Module.extraProguardFlagsFiles, a.proguardOptionsFile) + if !Bool(a.dexProperties.Optimize.Optimized_shrink_resources) { + // When using the optimized shrinking the R8 enqueuer will traverse the xml files that become + // live for code references and (transitively) mark these as live. + // In this case we explicitly don't wan't the aapt2 generated keep files (which would keep the now + // dead code alive) + a.Module.extraProguardFlagsFiles = append(a.Module.extraProguardFlagsFiles, a.proguardOptionsFile) + } } func (a *AndroidApp) installPath(ctx android.ModuleContext) android.InstallPath { @@ -580,7 +589,7 @@ func (a *AndroidApp) dexBuildActions(ctx android.ModuleContext) (android.Path, a var packageResources = a.exportPackage if ctx.ModuleName() != "framework-res" { - if Bool(a.dexProperties.Optimize.Shrink_resources) { + if a.dexProperties.resourceShrinkingEnabled() { protoFile := android.PathForModuleOut(ctx, packageResources.Base()+".proto.apk") aapt2Convert(ctx, protoFile, packageResources, "proto") a.dexer.resourcesInput = android.OptionalPathForPath(protoFile) @@ -603,7 +612,7 @@ func (a *AndroidApp) dexBuildActions(ctx android.ModuleContext) (android.Path, a } a.Module.compile(ctx, extraSrcJars, extraClasspathJars, extraCombinedJars) - if Bool(a.dexProperties.Optimize.Shrink_resources) { + if a.dexProperties.resourceShrinkingEnabled() { binaryResources := android.PathForModuleOut(ctx, packageResources.Base()+".binary.out.apk") aapt2Convert(ctx, binaryResources, a.dexer.resourcesOutput.Path(), "binary") packageResources = binaryResources diff --git a/java/dex.go b/java/dex.go index 4474c636a..6caaa7f48 100644 --- a/java/dex.go +++ b/java/dex.go @@ -66,6 +66,12 @@ type DexProperties struct { // If true, optimize for size by removing unused resources. Defaults to false. Shrink_resources *bool + // If true, use optimized resource shrinking in R8, overriding the + // Shrink_resources setting. Defaults to false. + // Optimized shrinking means that R8 will trace and treeshake resources together with code + // and apply additional optimizations. This implies non final fields in the R classes. + Optimized_shrink_resources *bool + // Flags to pass to proguard. Proguard_flags []string @@ -105,6 +111,10 @@ func (d *dexer) effectiveOptimizeEnabled() bool { return BoolDefault(d.dexProperties.Optimize.Enabled, d.dexProperties.Optimize.EnabledByDefault) } +func (d *DexProperties) resourceShrinkingEnabled() bool { + return BoolDefault(d.Optimize.Optimized_shrink_resources, Bool(d.Optimize.Shrink_resources)) +} + var d8, d8RE = pctx.MultiCommandRemoteStaticRules("d8", blueprint.RuleParams{ Command: `rm -rf "$outDir" && mkdir -p "$outDir" && ` + @@ -351,10 +361,14 @@ func (d *dexer) r8Flags(ctx android.ModuleContext, flags javaBuilderFlags) (r8Fl r8Flags = append(r8Flags, "-ignorewarnings") } + // resourcesInput is empty when we don't use resource shrinking, if on, pass these to R8 if d.resourcesInput.Valid() { r8Flags = append(r8Flags, "--resource-input", d.resourcesInput.Path().String()) r8Deps = append(r8Deps, d.resourcesInput.Path()) r8Flags = append(r8Flags, "--resource-output", d.resourcesOutput.Path().String()) + if Bool(opt.Optimized_shrink_resources) { + r8Flags = append(r8Flags, "--optimized-resource-shrinking") + } } return r8Flags, r8Deps |