Merge changes from topic "hidl-updater-system"

* changes:
  pm: AndroidHidlUpdater: system only
  pm: PackageBackwardCompatibility -> applyPolicy

core/java/android/content/pm/AndroidHidlUpdater.java

@@ -34,8 +34,14 @@ public class AndroidHidlUpdater extends PackageSharedLibraryUpdater {
 
     @Override
     public void updatePackage(Package pkg) {
+        ApplicationInfo info = pkg.applicationInfo;
+
         // This was the default <= P and is maintained for backwards compatibility.
-        if (pkg.applicationInfo.targetSdkVersion <= Build.VERSION_CODES.P) {
+        boolean isLegacy = info.targetSdkVersion <= Build.VERSION_CODES.P;
+        // Only system apps use these libraries
+        boolean isSystem = info.isSystemApp() || info.isUpdatedSystemApp();
+
+        if (isLegacy && isSystem) {
             prefixRequiredLibrary(pkg, ANDROID_HIDL_BASE);
             prefixRequiredLibrary(pkg, ANDROID_HIDL_MANAGER);
         } else {

core/java/android/content/pm/PackageParser.java

@@ -3857,8 +3857,6 @@ public class PackageParser {
         // every activity info has had a chance to set it from its attributes.
         setMaxAspectRatio(owner);
 
-        PackageBackwardCompatibility.modifySharedLibraries(owner);
-
         if (hasDomainURLs(owner)) {
             owner.applicationInfo.privateFlags |= ApplicationInfo.PRIVATE_FLAG_HAS_DOMAIN_URLS;
         } else {

core/tests/coretests/src/android/content/pm/AndroidHidlUpdaterTest.java

@@ -40,8 +40,17 @@ public class AndroidHidlUpdaterTest extends PackageSharedLibraryUpdaterTest {
         PackageBuilder before = builder()
                 .targetSdkVersion(Build.VERSION_CODES.P);
 
+        // no change, not system
+        checkBackwardsCompatibility(before, before);
+    }
+
+    @Test
+    public void targeted_at_P_system() {
+        PackageBuilder before = builder().asSystemApp()
+                .targetSdkVersion(Build.VERSION_CODES.P);
+
         // Should add both HIDL libraries
-        PackageBuilder after = builder()
+        PackageBuilder after = builder().asSystemApp()
                 .targetSdkVersion(Build.VERSION_CODES.P)
                 .requiredLibraries(ANDROID_HIDL_MANAGER, ANDROID_HIDL_BASE);
 
@@ -54,9 +63,19 @@ public class AndroidHidlUpdaterTest extends PackageSharedLibraryUpdaterTest {
                 .targetSdkVersion(Build.VERSION_CODES.P)
                 .requiredLibraries(OTHER_LIBRARY);
 
+        // no change, not system
+        checkBackwardsCompatibility(before, before);
+    }
+
+    @Test
+    public void targeted_at_P_not_empty_usesLibraries_system() {
+        PackageBuilder before = builder().asSystemApp()
+                .targetSdkVersion(Build.VERSION_CODES.P)
+                .requiredLibraries(OTHER_LIBRARY);
+
         // The hidl jars should be added at the start of the list because it
         // is not on the bootclasspath and the package targets pre-P.
-        PackageBuilder after = builder()
+        PackageBuilder after = builder().asSystemApp()
                 .targetSdkVersion(Build.VERSION_CODES.P)
                 .requiredLibraries(ANDROID_HIDL_MANAGER, ANDROID_HIDL_BASE, OTHER_LIBRARY);
 
@@ -69,8 +88,21 @@ public class AndroidHidlUpdaterTest extends PackageSharedLibraryUpdaterTest {
                 .targetSdkVersion(Build.VERSION_CODES.P)
                 .requiredLibraries(ANDROID_HIDL_MANAGER, ANDROID_HIDL_BASE);
 
-        // No change is required because although the HIDL libraries has been removed from
+        PackageBuilder after = builder()
-        // the bootclasspath the package explicitly requests it.
+                .targetSdkVersion(Build.VERSION_CODES.P);
+
+        // Libraries are removed because they are not available for non-system apps
+        checkBackwardsCompatibility(before, after);
+    }
+
+    @Test
+    public void targeted_at_P_in_usesLibraries_system() {
+        PackageBuilder before = builder().asSystemApp()
+                .targetSdkVersion(Build.VERSION_CODES.P)
+                .requiredLibraries(ANDROID_HIDL_MANAGER, ANDROID_HIDL_BASE);
+
+        // No change is required because the package explicitly requests the HIDL libraries
+        // and is targeted at the current version so does not need backwards compatibility.
         checkBackwardsCompatibility(before, before);
     }
 
@@ -81,8 +113,7 @@ public class AndroidHidlUpdaterTest extends PackageSharedLibraryUpdaterTest {
         // Dependency is removed, it is not available.
         PackageBuilder after = builder();
 
-        // No change is required because the package explicitly requests the HIDL libraries
+        // Libraries are removed because they are not available for apps targetting Q+
-        // and is targeted at the current version so does not need backwards compatibility.
         checkBackwardsCompatibility(before, after);
     }
 
@@ -93,8 +124,7 @@ public class AndroidHidlUpdaterTest extends PackageSharedLibraryUpdaterTest {
         // Dependency is removed, it is not available.
         PackageBuilder after = builder();
 
-        // No change is required because the package explicitly requests the HIDL libraries
+        // Libraries are removed because they are not available for apps targetting Q+
-        // and is targeted at the current version so does not need backwards compatibility.
         checkBackwardsCompatibility(before, after);
     }
 

core/tests/coretests/src/android/content/pm/PackageBuilder.java

@@ -30,6 +30,8 @@ class PackageBuilder {
 
     private int mTargetSdkVersion = Build.VERSION_CODES.CUR_DEVELOPMENT;
 
+    private int mFlags = 0;
+
     private ArrayList<String> mRequiredLibraries;
 
     private ArrayList<String> mOptionalLibraries;
@@ -41,6 +43,7 @@ class PackageBuilder {
     public PackageParser.Package build() {
         PackageParser.Package pkg = new PackageParser.Package("org.package.name");
         pkg.applicationInfo.targetSdkVersion = mTargetSdkVersion;
+        pkg.applicationInfo.flags = mFlags;
         pkg.usesLibraries = mRequiredLibraries;
         pkg.usesOptionalLibraries = mOptionalLibraries;
         return pkg;
@@ -51,6 +54,11 @@ class PackageBuilder {
         return this;
     }
 
+    PackageBuilder asSystemApp() {
+        this.mFlags |= ApplicationInfo.FLAG_SYSTEM;
+        return this;
+    }
+
     PackageBuilder requiredLibraries(String... names) {
         this.mRequiredLibraries = arrayListOrNull(names);
         return this;

services/core/java/com/android/server/pm/PackageManagerService.java

@@ -168,6 +168,7 @@ import android.content.pm.InstantAppRequest;
 import android.content.pm.InstantAppResolveInfo;
 import android.content.pm.InstrumentationInfo;
 import android.content.pm.IntentFilterVerificationInfo;
+import android.content.pm.PackageBackwardCompatibility;
 import android.content.pm.KeySet;
 import android.content.pm.PackageCleanItem;
 import android.content.pm.PackageInfo;
@@ -11043,6 +11044,8 @@ public class PackageManagerService extends IPackageManager.Stub
             pkg.mRealPackage = null;
             pkg.mAdoptPermissions = null;
         }
+
+        PackageBackwardCompatibility.modifySharedLibraries(pkg);
     }
 
     private static @NonNull <T> T assertNotNull(@Nullable T object, String message)