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Remove global state from sysprop libraries

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Sysprop libraries use a global list to rewrite dependencies from
implementation libraries to public stub libraries when appropriate.
Remove the global list, and instead add a dependency from the
implementation to the public stub that forwards the JavaInfo.

Bug: 181367697
Test: sysprop_test.go
Change-Id: Ia7995feb3c079ca9bb6a403daaae3e3329fd7f6a
This commit is contained in:
Colin Cross 2021-02-26 16:20:32 -08:00
parent b014f0787e
commit 75ce9eccf3
6 changed files with 124 additions and 195 deletions
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1
java/Android.bp
View file

@ -58,7 +58,6 @@ bootstrap_go_package {
"sdk_library.go",
"sdk_library_external.go",
"support_libraries.go",
"sysprop.go",
"system_modules.go",
"testing.go",
"tradefed.go",

69
java/java.go
View file

@ -370,6 +370,10 @@ type CompilerDeviceProperties struct {
// If true, generate the signature file of APK Signing Scheme V4, along side the signed APK file.
// Defaults to false.
V4_signature *bool
// Only for libraries created by a sysprop_library module, SyspropPublicStub is the name of the
// public stubs library.
SyspropPublicStub string `blueprint:"mutated"`
}
// Functionality common to Module and Import
@ -580,6 +584,16 @@ type JavaInfo struct {
var JavaInfoProvider = blueprint.NewProvider(JavaInfo{})
// SyspropPublicStubInfo contains info about the sysprop public stub library that corresponds to
// the sysprop implementation library.
type SyspropPublicStubInfo struct {
// JavaInfo is the JavaInfoProvider of the sysprop public stub library that corresponds to
// the sysprop implementation library.
JavaInfo JavaInfo
}
var SyspropPublicStubInfoProvider = blueprint.NewProvider(SyspropPublicStubInfo{})
// Methods that need to be implemented for a module that is added to apex java_libs property.
type ApexDependency interface {
HeaderJars() android.Paths
@ -666,6 +680,7 @@ var (
instrumentationForTag = dependencyTag{name: "instrumentation_for"}
extraLintCheckTag = dependencyTag{name: "extra-lint-check"}
jniLibTag = dependencyTag{name: "jnilib"}
syspropPublicStubDepTag = dependencyTag{name: "sysprop public stub"}
jniInstallTag = installDependencyTag{name: "jni install"}
binaryInstallTag = installDependencyTag{name: "binary install"}
usesLibTag = makeUsesLibraryDependencyTag(dexpreopt.AnySdkVersion)
@ -810,35 +825,17 @@ func (j *Module) deps(ctx android.BottomUpMutatorContext) {
j.linter.deps(ctx)
sdkDeps(ctx, sdkContext(j), j.dexer)
}
syspropPublicStubs := syspropPublicStubs(ctx.Config())
// rewriteSyspropLibs validates if a java module can link against platform's sysprop_library,
// and redirects dependency to public stub depending on the link type.
rewriteSyspropLibs := func(libs []string, prop string) []string {
// make a copy
ret := android.CopyOf(libs)
for idx, lib := range libs {
stub, ok := syspropPublicStubs[lib]
if !ok {
continue
}
linkType, _ := j.getLinkType(ctx.ModuleName())
// only platform modules can use internal props
if linkType != javaPlatform {
ret[idx] = stub
if j.deviceProperties.SyspropPublicStub != "" {
// This is a sysprop implementation library that has a corresponding sysprop public
// stubs library, and a dependency on it so that dependencies on the implementation can
// be forwarded to the public stubs library when necessary.
ctx.AddVariationDependencies(nil, syspropPublicStubDepTag, j.deviceProperties.SyspropPublicStub)
}
}
return ret
}
libDeps := ctx.AddVariationDependencies(nil, libTag, rewriteSyspropLibs(j.properties.Libs, "libs")...)
ctx.AddVariationDependencies(nil, staticLibTag, rewriteSyspropLibs(j.properties.Static_libs, "static_libs")...)
libDeps := ctx.AddVariationDependencies(nil, libTag, j.properties.Libs...)
ctx.AddVariationDependencies(nil, staticLibTag, j.properties.Static_libs...)
// Add dependency on libraries that provide additional hidden api annotations.
ctx.AddVariationDependencies(nil, hiddenApiAnnotationsTag, j.properties.Hiddenapi_additional_annotations...)
@ -853,15 +850,11 @@ func (j *Module) deps(ctx android.BottomUpMutatorContext) {
// if true, enable enforcement
// PRODUCT_INTER_PARTITION_JAVA_LIBRARY_ALLOWLIST
// exception list of java_library names to allow inter-partition dependency
for idx, lib := range j.properties.Libs {
for idx := range j.properties.Libs {
if libDeps[idx] == nil {
continue
}
if _, ok := syspropPublicStubs[lib]; ok {
continue
}
if javaDep, ok := libDeps[idx].(javaSdkLibraryEnforceContext); ok {
// java_sdk_library is always allowed at inter-partition dependency.
// So, skip check.
@ -1131,6 +1124,8 @@ func (j *Module) collectDeps(ctx android.ModuleContext) deps {
}
}
linkType, _ := j.getLinkType(ctx.ModuleName())
ctx.VisitDirectDeps(func(module android.Module) {
otherName := ctx.OtherModuleName(module)
tag := ctx.OtherModuleDependencyTag(module)
@ -1153,6 +1148,14 @@ func (j *Module) collectDeps(ctx android.ModuleContext) deps {
}
} else if ctx.OtherModuleHasProvider(module, JavaInfoProvider) {
dep := ctx.OtherModuleProvider(module, JavaInfoProvider).(JavaInfo)
if linkType != javaPlatform &&
ctx.OtherModuleHasProvider(module, SyspropPublicStubInfoProvider) {
// dep is a sysprop implementation library, but this module is not linking against
// the platform, so it gets the sysprop public stubs library instead. Replace
// dep with the JavaInfo from the SyspropPublicStubInfoProvider.
syspropDep := ctx.OtherModuleProvider(module, SyspropPublicStubInfoProvider).(SyspropPublicStubInfo)
dep = syspropDep.JavaInfo
}
switch tag {
case bootClasspathTag:
deps.bootClasspath = append(deps.bootClasspath, dep.HeaderJars...)
@ -1211,6 +1214,12 @@ func (j *Module) collectDeps(ctx android.ModuleContext) deps {
deps.kotlinStdlib = append(deps.kotlinStdlib, dep.HeaderJars...)
case kotlinAnnotationsTag:
deps.kotlinAnnotations = dep.HeaderJars
case syspropPublicStubDepTag:
// This is a sysprop implementation library, forward the JavaInfoProvider from
// the corresponding sysprop public stub library as SyspropPublicStubInfoProvider.
ctx.SetProvider(SyspropPublicStubInfoProvider, SyspropPublicStubInfo{
JavaInfo: dep,
})
}
} else if dep, ok := module.(android.SourceFileProducer); ok {
switch tag {

9
java/sdk_library_external.go
View file

@ -75,10 +75,15 @@ func (j *Module) allowListedInterPartitionJavaLibrary(ctx android.EarlyModuleCon
return inList(j.Name(), ctx.Config().InterPartitionJavaLibraryAllowList())
}
func (j *Module) syspropWithPublicStubs() bool {
return j.deviceProperties.SyspropPublicStub != ""
}
type javaSdkLibraryEnforceContext interface {
Name() string
allowListedInterPartitionJavaLibrary(ctx android.EarlyModuleContext) bool
partitionGroup(ctx android.EarlyModuleContext) partitionGroup
syspropWithPublicStubs() bool
}
var _ javaSdkLibraryEnforceContext = (*Module)(nil)
@ -88,6 +93,10 @@ func (j *Module) checkPartitionsForJavaDependency(ctx android.EarlyModuleContext
return
}
if dep.syspropWithPublicStubs() {
return
}
// If product interface is not enforced, skip check between system and product partition.
// But still need to check between product and vendor partition because product interface flag
// just represents enforcement between product and system, and vendor interface enforcement

64
java/sysprop.go
View file

@ -1,64 +0,0 @@
// Copyright (C) 2019 The Android Open Source Project
//
// 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 contains a map to redirect dependencies towards sysprop_library. If a sysprop_library
// is owned by Platform, and the client module links against system API, the public stub of the
// sysprop_library should be used. The map will contain public stub names of sysprop_libraries.
import (
"sync"
"android/soong/android"
)
type syspropLibraryInterface interface {
BaseModuleName() string
Owner() string
HasPublicStub() bool
JavaPublicStubName() string
}
var (
syspropPublicStubsKey = android.NewOnceKey("syspropPublicStubsJava")
syspropPublicStubsLock sync.Mutex
)
func init() {
android.PreDepsMutators(func(ctx android.RegisterMutatorsContext) {
ctx.BottomUp("sysprop_java", SyspropMutator).Parallel()
})
}
func syspropPublicStubs(config android.Config) map[string]string {
return config.Once(syspropPublicStubsKey, func() interface{} {
return make(map[string]string)
}).(map[string]string)
}
// gather list of sysprop libraries owned by platform.
func SyspropMutator(mctx android.BottomUpMutatorContext) {
if m, ok := mctx.Module().(syspropLibraryInterface); ok {
if m.Owner() != "Platform" || !m.HasPublicStub() {
return
}
syspropPublicStubs := syspropPublicStubs(mctx.Config())
syspropPublicStubsLock.Lock()
defer syspropPublicStubsLock.Unlock()
syspropPublicStubs[m.BaseModuleName()] = m.JavaPublicStubName()
}
}

55
sysprop/sysprop_library.go
View file

@ -40,6 +40,7 @@ type syspropGenProperties struct {
Srcs []string `android:"path"`
Scope string
Name *string
Check_api *string
}
type syspropJavaGenRule struct {
@ -68,10 +69,6 @@ var (
func init() {
pctx.HostBinToolVariable("soongZipCmd", "soong_zip")
pctx.HostBinToolVariable("syspropJavaCmd", "sysprop_java")
android.PreArchMutators(func(ctx android.RegisterMutatorsContext) {
ctx.BottomUp("sysprop_deps", syspropDepsMutator).Parallel()
})
}
// syspropJavaGenRule module generates srcjar containing generated java APIs.
@ -103,6 +100,12 @@ func (g *syspropJavaGenRule) GenerateAndroidBuildActions(ctx android.ModuleConte
}
}
func (g *syspropJavaGenRule) DepsMutator(ctx android.BottomUpMutatorContext) {
// Add a dependency from the stubs to sysprop library so that the generator rule can depend on
// the check API rule of the sysprop library.
ctx.AddFarVariationDependencies(nil, nil, proptools.String(g.properties.Check_api))
}
func (g *syspropJavaGenRule) OutputFiles(tag string) (android.Paths, error) {
switch tag {
case "":
@ -157,9 +160,6 @@ type syspropLibraryProperties struct {
// If set to true, build a variant of the module for the host. Defaults to false.
Host_supported *bool
// Whether public stub exists or not.
Public_stub *bool `blueprint:"mutated"`
Cpp struct {
// Minimum sdk version that the artifact should support when it runs as part of mainline modules(APEX).
// Forwarded to cc_library.min_sdk_version
@ -202,11 +202,8 @@ func (m *syspropLibrary) CcImplementationModuleName() string {
return "lib" + m.BaseModuleName()
}
func (m *syspropLibrary) JavaPublicStubName() string {
if proptools.Bool(m.properties.Public_stub) {
func (m *syspropLibrary) javaPublicStubName() string {
return m.BaseModuleName() + "_public"
}
return ""
}
func (m *syspropLibrary) javaGenModuleName() string {
@ -221,10 +218,6 @@ func (m *syspropLibrary) BaseModuleName() string {
return m.ModuleBase.Name()
}
func (m *syspropLibrary) HasPublicStub() bool {
return proptools.Bool(m.properties.Public_stub)
}
func (m *syspropLibrary) CurrentSyspropApiFile() android.OptionalPath {
return m.currentApiFile
}
@ -409,6 +402,7 @@ type javaLibraryProperties struct {
Installable *bool
Libs []string
Stem *string
SyspropPublicStub string
}
func syspropLibraryHook(ctx android.LoadHookContext, m *syspropLibrary) {
@ -493,8 +487,17 @@ func syspropLibraryHook(ctx android.LoadHookContext, m *syspropLibrary) {
Srcs: m.properties.Srcs,
Scope: scope,
Name: proptools.StringPtr(m.javaGenModuleName()),
Check_api: proptools.StringPtr(ctx.ModuleName()),
})
// if platform sysprop_library is installed in /system or /system-ext, we regard it as an API
// and allow any modules (even from different partition) to link against the sysprop_library.
// To do that, we create a public stub and expose it to modules with sdk_version: system_*.
var publicStub string
if isOwnerPlatform && installedInSystem {
publicStub = m.javaPublicStubName()
}
ctx.CreateModule(java.LibraryFactory, &javaLibraryProperties{
Name: proptools.StringPtr(m.BaseModuleName()),
Srcs: []string{":" + m.javaGenModuleName()},
@ -504,21 +507,19 @@ func syspropLibraryHook(ctx android.LoadHookContext, m *syspropLibrary) {
Installable: m.properties.Installable,
Sdk_version: proptools.StringPtr("core_current"),
Libs: []string{javaSyspropStub},
SyspropPublicStub: publicStub,
})
// if platform sysprop_library is installed in /system or /system-ext, we regard it as an API
// and allow any modules (even from different partition) to link against the sysprop_library.
// To do that, we create a public stub and expose it to modules with sdk_version: system_*.
if isOwnerPlatform && installedInSystem {
m.properties.Public_stub = proptools.BoolPtr(true)
if publicStub != "" {
ctx.CreateModule(syspropJavaGenFactory, &syspropGenProperties{
Srcs: m.properties.Srcs,
Scope: "public",
Name: proptools.StringPtr(m.javaGenPublicStubName()),
Check_api: proptools.StringPtr(ctx.ModuleName()),
})
ctx.CreateModule(java.LibraryFactory, &javaLibraryProperties{
Name: proptools.StringPtr(m.JavaPublicStubName()),
Name: proptools.StringPtr(publicStub),
Srcs: []string{":" + m.javaGenPublicStubName()},
Installable: proptools.BoolPtr(false),
Sdk_version: proptools.StringPtr("core_current"),
@ -537,15 +538,3 @@ func syspropLibraryHook(ctx android.LoadHookContext, m *syspropLibrary) {
*libraries = append(*libraries, "//"+ctx.ModuleDir()+":"+ctx.ModuleName())
}
}
// syspropDepsMutator adds dependencies from java implementation library to sysprop library.
// java implementation library then depends on check API rule of sysprop library.
func syspropDepsMutator(ctx android.BottomUpMutatorContext) {
if m, ok := ctx.Module().(*syspropLibrary); ok {
ctx.AddReverseDependency(m, nil, m.javaGenModuleName())
if proptools.Bool(m.properties.Public_stub) {
ctx.AddReverseDependency(m, nil, m.javaGenPublicStubName())
}
}
}

21
sysprop/sysprop_test.go
View file

@ -26,7 +26,6 @@ import (
"strings"
"testing"
"github.com/google/blueprint"
"github.com/google/blueprint/proptools"
)
@ -61,16 +60,10 @@ func testContext(config android.Config) *android.TestContext {
java.RegisterRequiredBuildComponentsForTest(ctx)
ctx.PreArchMutators(android.RegisterDefaultsPreArchMutators)
ctx.PreArchMutators(func(ctx android.RegisterMutatorsContext) {
ctx.BottomUp("sysprop_deps", syspropDepsMutator).Parallel()
})
android.RegisterPrebuiltMutators(ctx)
cc.RegisterRequiredBuildComponentsForTest(ctx)
ctx.PreDepsMutators(func(ctx android.RegisterMutatorsContext) {
ctx.BottomUp("sysprop_java", java.SyspropMutator).Parallel()
})
ctx.RegisterModuleType("sysprop_library", syspropLibraryFactory)
@ -392,15 +385,9 @@ func TestSyspropLibrary(t *testing.T) {
}
// Java modules linking against system API should use public stub
javaSystemApiClient := ctx.ModuleForTests("java-platform", "android_common")
publicStubFound := false
ctx.VisitDirectDeps(javaSystemApiClient.Module(), func(dep blueprint.Module) {
if dep.Name() == "sysprop-platform_public" {
publicStubFound = true
javaSystemApiClient := ctx.ModuleForTests("java-platform", "android_common").Rule("javac")
syspropPlatformPublic := ctx.ModuleForTests("sysprop-platform_public", "android_common").Description("for turbine")
if g, w := javaSystemApiClient.Implicits.Strings(), syspropPlatformPublic.Output.String(); !android.InList(w, g) {
t.Errorf("system api client should use public stub %q, got %q", w, g)
}
})
if !publicStubFound {
t.Errorf("system api client should use public stub")
}
}