Add nested class loader subcontext at the proper hierarchy level.
When adding a subcontext in a class loader context tree, there are two
possible cases: 1) the root of the subcontext is itself a <uses-library>
and should be present as a node in the tree, or 2) the root is not a
<uses-library>, but some of its dependencies are -- in that case they
should be disconnected from the root, and the resulting forrest should
be added at the top-level.
Example:
1) C is a <uses-library>:
A
├── B
└── C
├── D
└── E
└── F
2) C is not a <uses-library>:
A
├── B
├── D
└── E
└── F
Before the patch subcontexts for transitive dependencies were added
before the subcontext for the direct dependency (even if it was a
<uses-library>, resulting in case-2 hierarchy when case-1 should have
been used. Previosuly this didn't matter because class loader context
was a flat set of libraries, but now it matters because class loader
context is a tree.
This patch changes the order in which libraries are added, so that
direct dependencies are added before transitive ones. The context adding
method now accepts an "implicit root" parameter, so that when adding
transitive dependencies it can check if the corresponding direct
dependency is a <uses-library> and already present in the context.
Partially constructed class loader context is now propagated top-down
into aapt.buildActions, so that the method can use existing part of the
context to decide where the missing part should be connected.
Test: lunch aosp_cf_x86_phone-userdebug && m
Bug: 132357300
Change-Id: I649aff9e27494306885a4f4fc90226c399636b57
diff --git a/java/aar.go b/java/aar.go
index c8faed0..7c3840b 100644
--- a/java/aar.go
+++ b/java/aar.go
@@ -109,7 +109,6 @@
useEmbeddedNativeLibs bool
useEmbeddedDex bool
usesNonSdkApis bool
- sdkLibraries dexpreopt.ClassLoaderContextMap
hasNoCode bool
LoggingParent string
resourceFiles android.Paths
@@ -259,12 +258,11 @@
CommandDeps: []string{"${config.Zip2ZipCmd}"},
})
-func (a *aapt) buildActions(ctx android.ModuleContext, sdkContext sdkContext, extraLinkFlags ...string) {
+func (a *aapt) buildActions(ctx android.ModuleContext, sdkContext sdkContext,
+ sdkLibraries dexpreopt.ClassLoaderContextMap, extraLinkFlags ...string) {
- transitiveStaticLibs, transitiveStaticLibManifests, staticRRODirs, assetPackages, libDeps, libFlags, sdkLibraries :=
- aaptLibs(ctx, sdkContext)
-
- a.sdkLibraries = sdkLibraries
+ transitiveStaticLibs, transitiveStaticLibManifests, staticRRODirs, assetPackages, libDeps, libFlags :=
+ aaptLibs(ctx, sdkContext, sdkLibraries)
// App manifest file
manifestFile := proptools.StringDefault(a.aaptProperties.Manifest, "AndroidManifest.xml")
@@ -391,29 +389,31 @@
}
// aaptLibs collects libraries from dependencies and sdk_version and converts them into paths
-func aaptLibs(ctx android.ModuleContext, sdkContext sdkContext) (transitiveStaticLibs, transitiveStaticLibManifests android.Paths,
- staticRRODirs []rroDir, assets, deps android.Paths, flags []string, sdkLibraries dexpreopt.ClassLoaderContextMap) {
+func aaptLibs(ctx android.ModuleContext, sdkContext sdkContext, sdkLibraries dexpreopt.ClassLoaderContextMap) (
+ transitiveStaticLibs, transitiveStaticLibManifests android.Paths, staticRRODirs []rroDir, assets, deps android.Paths, flags []string) {
var sharedLibs android.Paths
+ if sdkLibraries == nil {
+ // Not all callers need to compute class loader context, those who don't just pass nil.
+ // Create a temporary class loader context here (it will be computed, but not used).
+ sdkLibraries = make(dexpreopt.ClassLoaderContextMap)
+ }
+
sdkDep := decodeSdkDep(ctx, sdkContext)
if sdkDep.useFiles {
sharedLibs = append(sharedLibs, sdkDep.jars...)
}
- sdkLibraries = make(dexpreopt.ClassLoaderContextMap)
-
ctx.VisitDirectDeps(func(module android.Module) {
+ depName := ctx.OtherModuleName(module)
+
var exportPackage android.Path
aarDep, _ := module.(AndroidLibraryDependency)
if aarDep != nil {
exportPackage = aarDep.ExportPackage()
}
- if dep, ok := module.(Dependency); ok {
- sdkLibraries.AddContextMap(dep.ExportedSdkLibs())
- }
-
switch ctx.OtherModuleDependencyTag(module) {
case instrumentationForTag:
// Nothing, instrumentationForTag is treated as libTag for javac but not for aapt2.
@@ -439,7 +439,7 @@
transitiveStaticLibs = append(transitiveStaticLibs, aarDep.ExportedStaticPackages()...)
transitiveStaticLibs = append(transitiveStaticLibs, exportPackage)
transitiveStaticLibManifests = append(transitiveStaticLibManifests, aarDep.ExportedManifests()...)
- sdkLibraries.AddContextMap(aarDep.ExportedSdkLibs())
+ sdkLibraries.AddContextMap(aarDep.ExportedSdkLibs(), depName)
if aarDep.ExportedAssets().Valid() {
assets = append(assets, aarDep.ExportedAssets().Path())
}
@@ -457,6 +457,12 @@
}
}
}
+
+ // Add nested dependencies after processing the direct dependency: if it is a <uses-library>,
+ // nested context is added as its subcontext, and should not be re-added at the top-level.
+ if dep, ok := module.(Dependency); ok {
+ sdkLibraries.AddContextMap(dep.ExportedSdkLibs(), depName)
+ }
})
deps = append(deps, sharedLibs...)
@@ -473,7 +479,7 @@
transitiveStaticLibs = android.FirstUniquePaths(transitiveStaticLibs)
transitiveStaticLibManifests = android.FirstUniquePaths(transitiveStaticLibManifests)
- return transitiveStaticLibs, transitiveStaticLibManifests, staticRRODirs, assets, deps, flags, sdkLibraries
+ return transitiveStaticLibs, transitiveStaticLibManifests, staticRRODirs, assets, deps, flags
}
type AndroidLibrary struct {
@@ -508,8 +514,8 @@
func (a *AndroidLibrary) GenerateAndroidBuildActions(ctx android.ModuleContext) {
a.aapt.isLibrary = true
- a.aapt.buildActions(ctx, sdkContext(a))
- a.exportedSdkLibs = a.aapt.sdkLibraries
+ a.exportedSdkLibs = make(dexpreopt.ClassLoaderContextMap)
+ a.aapt.buildActions(ctx, sdkContext(a), a.exportedSdkLibs)
a.hideApexVariantFromMake = !ctx.Provider(android.ApexInfoProvider).(android.ApexInfo).IsForPlatform()
@@ -781,12 +787,11 @@
linkFlags = append(linkFlags, "--manifest "+a.manifest.String())
linkDeps = append(linkDeps, a.manifest)
- transitiveStaticLibs, staticLibManifests, staticRRODirs, transitiveAssets, libDeps, libFlags, sdkLibraries :=
- aaptLibs(ctx, sdkContext(a))
+ transitiveStaticLibs, staticLibManifests, staticRRODirs, transitiveAssets, libDeps, libFlags :=
+ aaptLibs(ctx, sdkContext(a), nil)
_ = staticLibManifests
_ = staticRRODirs
- _ = sdkLibraries
linkDeps = append(linkDeps, libDeps...)
linkFlags = append(linkFlags, libFlags...)