Port uses-shared library verification and dexpreopting to Soong

Ports 09f3b97f4b488cd3a7b7d72038b173575b02c162 (Add support for
preopt with uses-libraries) from Make to Soong to support verifying
and preopting shared libraries.

Bug: 132357300
Test: app_test.go
Test: m checkbuild
Change-Id: Id25f55f07a55120bebe2a9b32c094209efc85c8b
This commit is contained in:
Colin Cross 2019-05-16 12:28:22 -07:00
parent 38b968555c
commit b66d7b1c20
12 changed files with 304 additions and 32 deletions

View File

@ -1103,6 +1103,10 @@ func (c *config) ProductCompatibleProperty() bool {
return Bool(c.productVariables.ProductCompatibleProperty)
}
func (c *config) MissingUsesLibraries() []string {
return c.productVariables.MissingUsesLibraries
}
func (c *deviceConfig) BoardVndkRuntimeDisable() bool {
return Bool(c.config.productVariables.BoardVndkRuntimeDisable)
}

View File

@ -306,6 +306,8 @@ type productVariables struct {
ProductCompatibleProperty *bool `json:",omitempty"`
TargetFSConfigGen []string `json:",omitempty"`
MissingUsesLibraries []string `json:",omitempty"`
}
func boolPtr(v bool) *bool {

View File

@ -65,8 +65,6 @@ type GlobalConfig struct {
AlwaysOtherDebugInfo bool // always generate mini debug info for non-system server modules (overrides NoDebugInfo=true)
NeverOtherDebugInfo bool // never generate mini debug info for non-system server modules (overrides NoDebugInfo=true)
MissingUsesLibraries []string // libraries that may be listed in OptionalUsesLibraries but will not be installed by the product
IsEng bool // build is a eng variant
SanitizeLite bool // build is the second phase of a SANITIZE_LITE build
@ -118,10 +116,10 @@ type ModuleConfig struct {
ProfileClassListing android.OptionalPath
ProfileIsTextListing bool
EnforceUsesLibraries bool
OptionalUsesLibraries []string
UsesLibraries []string
LibraryPaths map[string]android.Path
EnforceUsesLibraries bool
PresentOptionalUsesLibraries []string
UsesLibraries []string
LibraryPaths map[string]android.Path
Archs []android.ArchType
DexPreoptImages []android.Path
@ -310,7 +308,6 @@ func GlobalConfigForTests(ctx android.PathContext) GlobalConfig {
NeverSystemServerDebugInfo: false,
AlwaysOtherDebugInfo: false,
NeverOtherDebugInfo: false,
MissingUsesLibraries: nil,
IsEng: false,
SanitizeLite: false,
DefaultAppImages: false,

View File

@ -226,11 +226,6 @@ func dexpreoptCommand(ctx android.PathContext, global GlobalConfig, module Modul
bootImageLocation = PathToLocation(bootImage, arch)
}
// Lists of used and optional libraries from the build config, with optional libraries that are known to not
// be present in the current product removed.
var filteredUsesLibs []string
var filteredOptionalUsesLibs []string
// The class loader context using paths in the build
var classLoaderContextHost android.Paths
@ -248,11 +243,10 @@ func dexpreoptCommand(ctx android.PathContext, global GlobalConfig, module Modul
var classLoaderContextHostString string
if module.EnforceUsesLibraries {
filteredOptionalUsesLibs = filterOut(global.MissingUsesLibraries, module.OptionalUsesLibraries)
filteredUsesLibs = append(copyOf(module.UsesLibraries), filteredOptionalUsesLibs...)
usesLibs := append(copyOf(module.UsesLibraries), module.PresentOptionalUsesLibraries...)
// Create class loader context for dex2oat from uses libraries and filtered optional libraries
for _, l := range filteredUsesLibs {
for _, l := range usesLibs {
classLoaderContextHost = append(classLoaderContextHost,
pathForLibrary(module, l))
@ -267,7 +261,9 @@ func dexpreoptCommand(ctx android.PathContext, global GlobalConfig, module Modul
// targetSdkVersion in the manifest or APK is < 28, and the module does not explicitly depend on
// org.apache.http.legacy, then implicitly add the classes to the classpath for dexpreopt. One the
// device the classes will be in a file called org.apache.http.legacy.impl.jar.
if !contains(module.UsesLibraries, httpLegacy) && !contains(module.OptionalUsesLibraries, httpLegacy) {
module.LibraryPaths[httpLegacyImpl] = module.LibraryPaths[httpLegacy]
if !contains(module.UsesLibraries, httpLegacy) && !contains(module.PresentOptionalUsesLibraries, httpLegacy) {
conditionalClassLoaderContextHost28 = append(conditionalClassLoaderContextHost28,
pathForLibrary(module, httpLegacyImpl))
conditionalClassLoaderContextTarget28 = append(conditionalClassLoaderContextTarget28,

View File

@ -33,7 +33,7 @@ func testModuleConfig(ctx android.PathContext) ModuleConfig {
ProfileClassListing: android.OptionalPath{},
ProfileIsTextListing: false,
EnforceUsesLibraries: false,
OptionalUsesLibraries: nil,
PresentOptionalUsesLibraries: nil,
UsesLibraries: nil,
LibraryPaths: nil,
Archs: []android.ArchType{android.Arm},

View File

@ -17,12 +17,13 @@ package java
// This file contains the module types for compiling Android apps.
import (
"github.com/google/blueprint"
"github.com/google/blueprint/proptools"
"path/filepath"
"reflect"
"strings"
"github.com/google/blueprint"
"github.com/google/blueprint/proptools"
"android/soong/android"
"android/soong/cc"
"android/soong/tradefed"
@ -119,6 +120,8 @@ type AndroidApp struct {
aapt
android.OverridableModuleBase
usesLibrary usesLibrary
certificate Certificate
appProperties appProperties
@ -176,6 +179,8 @@ func (a *AndroidApp) DepsMutator(ctx android.BottomUpMutatorContext) {
}
}
}
a.usesLibrary.deps(ctx, Bool(a.properties.No_framework_libs))
}
func (a *AndroidApp) OverridablePropertiesDepsMutator(ctx android.BottomUpMutatorContext) {
@ -276,6 +281,7 @@ func (a *AndroidApp) aaptBuildActions(ctx android.ModuleContext) {
aaptLinkFlags = append(aaptLinkFlags, a.additionalAaptFlags...)
a.aapt.splitNames = a.appProperties.Package_splits
a.aapt.sdkLibraries = a.exportedSdkLibs
a.aapt.buildActions(ctx, sdkContext(a), aaptLinkFlags...)
@ -308,9 +314,17 @@ func (a *AndroidApp) dexBuildActions(ctx android.ModuleContext) android.Path {
} else {
installDir = filepath.Join("app", a.installApkName)
}
a.dexpreopter.installPath = android.PathForModuleInstall(ctx, installDir, a.installApkName+".apk")
a.dexpreopter.isInstallable = Bool(a.properties.Installable)
a.dexpreopter.uncompressedDex = a.shouldUncompressDex(ctx)
a.dexpreopter.enforceUsesLibs = a.usesLibrary.enforceUsesLibraries()
a.dexpreopter.usesLibs = a.usesLibrary.usesLibraryProperties.Uses_libs
a.dexpreopter.optionalUsesLibs = a.usesLibrary.presentOptionalUsesLibs(ctx)
a.dexpreopter.libraryPaths = a.usesLibrary.usesLibraryPaths(ctx)
a.dexpreopter.manifestFile = a.mergedManifestFile
a.deviceProperties.UncompressDex = a.dexpreopter.uncompressedDex
if ctx.ModuleName() != "framework-res" {
@ -368,12 +382,19 @@ func processMainCert(m android.ModuleBase, certPropValue string, certificates []
}
func (a *AndroidApp) generateAndroidBuildActions(ctx android.ModuleContext) {
var apkDeps android.Paths
// Check if the install APK name needs to be overridden.
a.installApkName = ctx.DeviceConfig().OverridePackageNameFor(a.Name())
// Process all building blocks, from AAPT to certificates.
a.aaptBuildActions(ctx)
if a.usesLibrary.enforceUsesLibraries() {
manifestCheckFile := a.usesLibrary.verifyUsesLibrariesManifest(ctx, a.mergedManifestFile)
apkDeps = append(apkDeps, manifestCheckFile)
}
a.proguardBuildActions(ctx)
dexJarFile := a.dexBuildActions(ctx)
@ -391,13 +412,13 @@ func (a *AndroidApp) generateAndroidBuildActions(ctx android.ModuleContext) {
// Build a final signed app package.
// TODO(jungjw): Consider changing this to installApkName.
packageFile := android.PathForModuleOut(ctx, ctx.ModuleName()+".apk")
CreateAndSignAppPackage(ctx, packageFile, a.exportPackage, jniJarFile, dexJarFile, certificates)
CreateAndSignAppPackage(ctx, packageFile, a.exportPackage, jniJarFile, dexJarFile, certificates, apkDeps)
a.outputFile = packageFile
for _, split := range a.aapt.splits {
// Sign the split APKs
packageFile := android.PathForModuleOut(ctx, ctx.ModuleName()+"_"+split.suffix+".apk")
CreateAndSignAppPackage(ctx, packageFile, split.path, nil, nil, certificates)
CreateAndSignAppPackage(ctx, packageFile, split.path, nil, nil, certificates, apkDeps)
a.extraOutputFiles = append(a.extraOutputFiles, packageFile)
}
@ -483,7 +504,8 @@ func AndroidAppFactory() android.Module {
&module.Module.protoProperties,
&module.aaptProperties,
&module.appProperties,
&module.overridableAppProperties)
&module.overridableAppProperties,
&module.usesLibrary.usesLibraryProperties)
module.Prefer32(func(ctx android.BaseModuleContext, base *android.ModuleBase, class android.OsClass) bool {
return class == android.Device && ctx.Config().DevicePrefer32BitApps()
@ -559,6 +581,7 @@ func AndroidTestFactory() android.Module {
&module.appProperties,
&module.appTestProperties,
&module.overridableAppProperties,
&module.usesLibrary.usesLibraryProperties,
&module.testProperties)
android.InitAndroidMultiTargetsArchModule(module, android.DeviceSupported, android.MultilibCommon)
@ -599,7 +622,8 @@ func AndroidTestHelperAppFactory() android.Module {
&module.aaptProperties,
&module.appProperties,
&module.appTestHelperAppProperties,
&module.overridableAppProperties)
&module.overridableAppProperties,
&module.usesLibrary.usesLibraryProperties)
android.InitAndroidMultiTargetsArchModule(module, android.DeviceSupported, android.MultilibCommon)
android.InitDefaultableModule(module)
@ -666,6 +690,8 @@ type AndroidAppImport struct {
certificate *Certificate
dexpreopter
usesLibrary usesLibrary
}
type AndroidAppImportProperties struct {
@ -753,6 +779,8 @@ func (a *AndroidAppImport) DepsMutator(ctx android.BottomUpMutatorContext) {
if cert != "" {
ctx.AddDependency(ctx.Module(), certificateTag, cert)
}
a.usesLibrary.deps(ctx, false)
}
func (a *AndroidAppImport) uncompressEmbeddedJniLibs(
@ -808,7 +836,12 @@ func (a *AndroidAppImport) GenerateAndroidBuildActions(ctx android.ModuleContext
// TODO: LOCAL_EXTRACT_APK/LOCAL_EXTRACT_DPI_APK
// TODO: LOCAL_PACKAGE_SPLITS
srcApk := android.PathForModuleSrc(ctx, a.getSrcApkPath(ctx))
var srcApk android.Path
srcApk = android.PathForModuleSrc(ctx, a.getSrcApkPath(ctx))
if a.usesLibrary.enforceUsesLibraries() {
srcApk = a.usesLibrary.verifyUsesLibrariesAPK(ctx, srcApk)
}
// TODO: Install or embed JNI libraries
@ -821,6 +854,12 @@ func (a *AndroidAppImport) GenerateAndroidBuildActions(ctx android.ModuleContext
a.dexpreopter.isInstallable = true
a.dexpreopter.isPresignedPrebuilt = Bool(a.properties.Presigned)
a.dexpreopter.uncompressedDex = a.shouldUncompressDex(ctx)
a.dexpreopter.enforceUsesLibs = a.usesLibrary.enforceUsesLibraries()
a.dexpreopter.usesLibs = a.usesLibrary.usesLibraryProperties.Uses_libs
a.dexpreopter.optionalUsesLibs = a.usesLibrary.presentOptionalUsesLibs(ctx)
a.dexpreopter.libraryPaths = a.usesLibrary.usesLibraryPaths(ctx)
dexOutput := a.dexpreopter.dexpreopt(ctx, jnisUncompressed)
if a.dexpreopter.uncompressedDex {
dexUncompressed := android.PathForModuleOut(ctx, "dex-uncompressed", ctx.ModuleName()+".apk")
@ -866,9 +905,125 @@ func AndroidAppImportFactory() android.Module {
module.properties.Dpi_variants = reflect.New(dpiVariantsStruct).Interface()
module.AddProperties(&module.properties)
module.AddProperties(&module.dexpreoptProperties)
module.AddProperties(&module.usesLibrary.usesLibraryProperties)
InitJavaModule(module, android.DeviceSupported)
android.InitSingleSourcePrebuiltModule(module, &module.properties.Apk)
return module
}
type UsesLibraryProperties struct {
// A list of shared library modules that will be listed in uses-library tags in the AndroidManifest.xml file.
Uses_libs []string
// A list of shared library modules that will be listed in uses-library tags in the AndroidManifest.xml file with
// required=false.
Optional_uses_libs []string
// If true, the list of uses_libs and optional_uses_libs modules must match the AndroidManifest.xml file. Defaults
// to true if either uses_libs or optional_uses_libs is set. Will unconditionally default to true in the future.
Enforce_uses_libs *bool
}
// usesLibrary provides properties and helper functions for AndroidApp and AndroidAppImport to verify that the
// <uses-library> tags that end up in the manifest of an APK match the ones known to the build system through the
// uses_libs and optional_uses_libs properties. The build system's values are used by dexpreopt to preopt apps
// with knowledge of their shared libraries.
type usesLibrary struct {
usesLibraryProperties UsesLibraryProperties
}
func (u *usesLibrary) deps(ctx android.BottomUpMutatorContext, noFrameworkLibs bool) {
ctx.AddVariationDependencies(nil, usesLibTag, u.usesLibraryProperties.Uses_libs...)
ctx.AddVariationDependencies(nil, usesLibTag, u.presentOptionalUsesLibs(ctx)...)
if !noFrameworkLibs {
// dexpreopt/dexpreopt.go needs the paths to the dex jars of these libraries in case construct_context.sh needs
// to pass them to dex2oat. Add them as a dependency so we can determine the path to the dex jar of each
// library to dexpreopt.
ctx.AddVariationDependencies(nil, usesLibTag,
"org.apache.http.legacy",
"android.hidl.base-V1.0-java",
"android.hidl.manager-V1.0-java")
}
}
// presentOptionalUsesLibs returns optional_uses_libs after filtering out MissingUsesLibraries, which don't exist in the
// build.
func (u *usesLibrary) presentOptionalUsesLibs(ctx android.BaseModuleContext) []string {
optionalUsesLibs, _ := android.FilterList(u.usesLibraryProperties.Optional_uses_libs, ctx.Config().MissingUsesLibraries())
return optionalUsesLibs
}
// usesLibraryPaths returns a map of module names of shared library dependencies to the paths to their dex jars.
func (u *usesLibrary) usesLibraryPaths(ctx android.ModuleContext) map[string]android.Path {
usesLibPaths := make(map[string]android.Path)
ctx.VisitDirectDepsWithTag(usesLibTag, func(m android.Module) {
if lib, ok := m.(Dependency); ok {
if dexJar := lib.DexJar(); dexJar != nil {
usesLibPaths[ctx.OtherModuleName(m)] = dexJar
} else {
ctx.ModuleErrorf("module %q in uses_libs or optional_uses_libs must produce a dex jar, does it have installable: true?",
ctx.OtherModuleName(m))
}
} else {
ctx.ModuleErrorf("module %q in uses_libs or optional_uses_libs must be a java library",
ctx.OtherModuleName(m))
}
})
return usesLibPaths
}
// enforceUsesLibraries returns true of <uses-library> tags should be checked against uses_libs and optional_uses_libs
// properties. Defaults to true if either of uses_libs or optional_uses_libs is specified. Will default to true
// unconditionally in the future.
func (u *usesLibrary) enforceUsesLibraries() bool {
defaultEnforceUsesLibs := len(u.usesLibraryProperties.Uses_libs) > 0 ||
len(u.usesLibraryProperties.Optional_uses_libs) > 0
return BoolDefault(u.usesLibraryProperties.Enforce_uses_libs, defaultEnforceUsesLibs)
}
// verifyUsesLibrariesManifest checks the <uses-library> tags in an AndroidManifest.xml against the ones specified
// in the uses_libs and optional_uses_libs properties. It returns the path to a copy of the manifest.
func (u *usesLibrary) verifyUsesLibrariesManifest(ctx android.ModuleContext, manifest android.Path) android.Path {
outputFile := android.PathForModuleOut(ctx, "manifest_check", "AndroidManifest.xml")
rule := android.NewRuleBuilder()
cmd := rule.Command().Tool(ctx.Config().HostToolPath(ctx, "manifest_check")).
Flag("--enforce-uses-libraries").
Input(manifest).
FlagWithOutput("-o ", outputFile)
for _, lib := range u.usesLibraryProperties.Uses_libs {
cmd.FlagWithArg("--uses-library ", lib)
}
for _, lib := range u.usesLibraryProperties.Optional_uses_libs {
cmd.FlagWithArg("--optional-uses-library ", lib)
}
rule.Build(pctx, ctx, "verify_uses_libraries", "verify <uses-library>")
return outputFile
}
// verifyUsesLibrariesAPK checks the <uses-library> tags in the manifest of an APK against the ones specified
// in the uses_libs and optional_uses_libs properties. It returns the path to a copy of the APK.
func (u *usesLibrary) verifyUsesLibrariesAPK(ctx android.ModuleContext, apk android.Path) android.Path {
outputFile := android.PathForModuleOut(ctx, "verify_uses_libraries", apk.Base())
rule := android.NewRuleBuilder()
aapt := ctx.Config().HostToolPath(ctx, "aapt")
rule.Command().
Textf("aapt_binary=%s", aapt.String()).Implicit(aapt).
Textf(`uses_library_names="%s"`, strings.Join(u.usesLibraryProperties.Uses_libs, " ")).
Textf(`optional_uses_library_names="%s"`, strings.Join(u.usesLibraryProperties.Optional_uses_libs, " ")).
Tool(android.PathForSource(ctx, "build/make/core/verify_uses_libraries.sh")).Input(apk)
rule.Command().Text("cp -f").Input(apk).Output(outputFile)
rule.Build(pctx, ctx, "verify_uses_libraries", "verify <uses-library>")
return outputFile
}

View File

@ -63,7 +63,7 @@ var combineApk = pctx.AndroidStaticRule("combineApk",
})
func CreateAndSignAppPackage(ctx android.ModuleContext, outputFile android.WritablePath,
packageFile, jniJarFile, dexJarFile android.Path, certificates []Certificate) {
packageFile, jniJarFile, dexJarFile android.Path, certificates []Certificate, deps android.Paths) {
unsignedApkName := strings.TrimSuffix(outputFile.Base(), ".apk") + "-unsigned.apk"
unsignedApk := android.PathForModuleOut(ctx, unsignedApkName)
@ -78,9 +78,10 @@ func CreateAndSignAppPackage(ctx android.ModuleContext, outputFile android.Writa
}
ctx.Build(pctx, android.BuildParams{
Rule: combineApk,
Inputs: inputs,
Output: unsignedApk,
Rule: combineApk,
Inputs: inputs,
Output: unsignedApk,
Implicits: deps,
})
SignAppPackage(ctx, outputFile, unsignedApk, certificates)

View File

@ -1239,3 +1239,83 @@ func TestStl(t *testing.T) {
})
}
}
func TestUsesLibraries(t *testing.T) {
bp := `
java_sdk_library {
name: "foo",
srcs: ["a.java"],
api_packages: ["foo"],
}
java_sdk_library {
name: "bar",
srcs: ["a.java"],
api_packages: ["bar"],
}
android_app {
name: "app",
srcs: ["a.java"],
uses_libs: ["foo"],
optional_uses_libs: [
"bar",
"baz",
],
}
android_app_import {
name: "prebuilt",
apk: "prebuilts/apk/app.apk",
certificate: "platform",
uses_libs: ["foo"],
optional_uses_libs: [
"bar",
"baz",
],
}
`
config := testConfig(nil)
config.TestProductVariables.MissingUsesLibraries = []string{"baz"}
ctx := testAppContext(config, bp, nil)
run(t, ctx, config)
app := ctx.ModuleForTests("app", "android_common")
prebuilt := ctx.ModuleForTests("prebuilt", "android_common")
// Test that all libraries are verified
cmd := app.Rule("verify_uses_libraries").RuleParams.Command
if w := "--uses-library foo"; !strings.Contains(cmd, w) {
t.Errorf("wanted %q in %q", w, cmd)
}
if w := "--optional-uses-library bar --optional-uses-library baz"; !strings.Contains(cmd, w) {
t.Errorf("wanted %q in %q", w, cmd)
}
cmd = prebuilt.Rule("verify_uses_libraries").RuleParams.Command
if w := `uses_library_names="foo"`; !strings.Contains(cmd, w) {
t.Errorf("wanted %q in %q", w, cmd)
}
if w := `optional_uses_library_names="bar baz"`; !strings.Contains(cmd, w) {
t.Errorf("wanted %q in %q", w, cmd)
}
// Test that only present libraries are preopted
cmd = app.Rule("dexpreopt").RuleParams.Command
if w := `dex_preopt_target_libraries="/system/framework/foo.jar /system/framework/bar.jar"`; !strings.Contains(cmd, w) {
t.Errorf("wanted %q in %q", w, cmd)
}
cmd = prebuilt.Rule("dexpreopt").RuleParams.Command
if w := `dex_preopt_target_libraries="/system/framework/foo.jar /system/framework/bar.jar"`; !strings.Contains(cmd, w) {
t.Errorf("wanted %q in %q", w, cmd)
}
}

View File

@ -29,6 +29,12 @@ type dexpreopter struct {
isInstallable bool
isPresignedPrebuilt bool
manifestFile android.Path
usesLibs []string
optionalUsesLibs []string
enforceUsesLibs bool
libraryPaths map[string]android.Path
builtInstalled string
}
@ -154,6 +160,7 @@ func (d *dexpreopter) dexpreopt(ctx android.ModuleContext, dexJarFile android.Mo
DexLocation: dexLocation,
BuildPath: android.PathForModuleOut(ctx, "dexpreopt", ctx.ModuleName()+".jar").OutputPath,
DexPath: dexJarFile,
ManifestPath: d.manifestFile,
UncompressedDex: d.uncompressedDex,
HasApkLibraries: false,
PreoptFlags: nil,
@ -161,10 +168,10 @@ func (d *dexpreopter) dexpreopt(ctx android.ModuleContext, dexJarFile android.Mo
ProfileClassListing: profileClassListing,
ProfileIsTextListing: profileIsTextListing,
EnforceUsesLibraries: false,
OptionalUsesLibraries: nil,
UsesLibraries: nil,
LibraryPaths: nil,
EnforceUsesLibraries: d.enforceUsesLibs,
PresentOptionalUsesLibraries: d.optionalUsesLibs,
UsesLibraries: d.usesLibs,
LibraryPaths: d.libraryPaths,
Archs: archs,
DexPreoptImages: images,

View File

@ -420,6 +420,7 @@ var (
proguardRaiseTag = dependencyTag{name: "proguard-raise"}
certificateTag = dependencyTag{name: "certificate"}
instrumentationForTag = dependencyTag{name: "instrumentation_for"}
usesLibTag = dependencyTag{name: "uses-library"}
)
type sdkDep struct {

View File

@ -174,6 +174,8 @@ func testContext(config android.Config, bp string,
"build/soong/scripts/jar-wrapper.sh": nil,
"build/make/core/verify_uses_libraries.sh": nil,
"build/make/core/proguard.flags": nil,
"build/make/core/proguard_basic_keeps.flags": nil,

View File

@ -77,6 +77,33 @@ func GatherRequiredDepsForTest() string {
name: "framework-res",
no_framework_libs: true,
}
java_library {
name: "android.hidl.base-V1.0-java",
srcs: ["a.java"],
no_standard_libs: true,
sdk_version: "core_current",
system_modules: "core-platform-api-stubs-system-modules",
installable: true,
}
java_library {
name: "android.hidl.manager-V1.0-java",
srcs: ["a.java"],
no_standard_libs: true,
sdk_version: "core_current",
system_modules: "core-platform-api-stubs-system-modules",
installable: true,
}
java_library {
name: "org.apache.http.legacy",
srcs: ["a.java"],
no_standard_libs: true,
sdk_version: "core_current",
system_modules: "core-platform-api-stubs-system-modules",
installable: true,
}
`
systemModules := []string{