Merge changes from topic "unwanted-transitive-deps" into main

* changes:
  Enable dup check for test apexes
  Add apex.unwanted_transitive_deps property

apex/apex.go

@@ -135,6 +135,11 @@ type apexBundleProperties struct {
 	// List of filesystem images that are embedded inside this APEX bundle.
 	Filesystems []string
 
+	// List of module names which we don't want to add as transitive deps. This can be used as
+	// a workaround when the current implementation collects more than necessary. For example,
+	// Rust binaries with prefer_rlib:true add unnecessary dependencies.
+	Unwanted_transitive_deps []string
+
 	// The minimum SDK version that this APEX must support at minimum. This is usually set to
 	// the SDK version that the APEX was first introduced.
 	Min_sdk_version *string
@@ -2003,11 +2008,21 @@ type visitorContext struct {
 
 	// if true, raise error on duplicate apexFile
 	checkDuplicate bool
+
+	// visitor skips these from this list of module names
+	unwantedTransitiveDeps []string
 }
 
 func (vctx *visitorContext) normalizeFileInfo(mctx android.ModuleContext) {
 	encountered := make(map[string]apexFile)
 	for _, f := range vctx.filesInfo {
+		// Skips unwanted transitive deps. This happens, for example, with Rust binaries with prefer_rlib:true.
+		// TODO(b/295593640)
+		// Needs additional verification for the resulting APEX to ensure that skipped artifacts don't make problems.
+		// For example, DT_NEEDED modules should be found within the APEX unless they are marked in `requiredNativeLibs`.
+		if f.transitiveDep && f.module != nil && android.InList(mctx.OtherModuleName(f.module), vctx.unwantedTransitiveDeps) {
+			continue
+		}
 		dest := filepath.Join(f.installDir, f.builtFile.Base())
 		if e, ok := encountered[dest]; !ok {
 			encountered[dest] = f
@@ -2371,10 +2386,6 @@ func (a *apexBundle) shouldCheckDuplicate(ctx android.ModuleContext) bool {
 	if a.properties.IsCoverageVariant {
 		return false
 	}
-	// TODO(b/263308515) remove this
-	if a.testApex {
-		return false
-	}
 	if ctx.DeviceConfig().DeviceArch() == "" {
 		return false
 	}
@@ -2403,6 +2414,7 @@ func (a *apexBundle) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	vctx := visitorContext{
 		handleSpecialLibs:      !android.Bool(a.properties.Ignore_system_library_special_case),
 		checkDuplicate:         a.shouldCheckDuplicate(ctx),
+		unwantedTransitiveDeps: a.properties.Unwanted_transitive_deps,
 	}
 	ctx.WalkDepsBlueprint(func(child, parent blueprint.Module) bool { return a.depVisitor(&vctx, ctx, child, parent) })
 	vctx.normalizeFileInfo(ctx)

apex/apex_test.go

@@ -7709,6 +7709,42 @@ func TestNoDupeApexFiles(t *testing.T) {
 		`)
 }
 
+func TestApexUnwantedTransitiveDeps(t *testing.T) {
+	bp := `
+	apex {
+		name: "myapex",
+		key: "myapex.key",
+		native_shared_libs: ["libfoo"],
+		updatable: false,
+		unwanted_transitive_deps: ["libbar"],
+	}
+
+	apex_key {
+		name: "myapex.key",
+		public_key: "testkey.avbpubkey",
+		private_key: "testkey.pem",
+	}
+
+	cc_library {
+		name: "libfoo",
+		srcs: ["foo.cpp"],
+		shared_libs: ["libbar"],
+		apex_available: ["myapex"],
+	}
+
+	cc_library {
+		name: "libbar",
+		srcs: ["bar.cpp"],
+		apex_available: ["myapex"],
+	}`
+	ctx := testApex(t, bp)
+	ensureExactContents(t, ctx, "myapex", "android_common_myapex", []string{
+		"*/libc++.so",
+		"*/libfoo.so",
+		// not libbar.so
+	})
+}
+
 func TestRejectNonInstallableJavaLibrary(t *testing.T) {
 	testApexError(t, `"myjar" is not configured to be compiled into dex`, `
 		apex {