Reland "Use module name as the suffix for apex variant"

This reverts commit 2d35abc2f6.

Reason for revert: relanding

Change-Id: I207eeccbbdc27655889584f55fd5fd232593678d

apex/androidmk.go

@@ -42,7 +42,11 @@ func (a *apexBundle) AndroidMk() android.AndroidMkData {
 		}}
 }
 
-func (a *apexBundle) androidMkForFiles(w io.Writer, apexName, moduleDir string) []string {
+func (a *apexBundle) androidMkForFiles(w io.Writer, apexBundleName, apexName, moduleDir string) []string {
+	// apexBundleName comes from the 'name' property; apexName comes from 'apex_name' property.
+	// An apex is installed to /system/apex/<apexBundleName> and is activated at /apex/<apexName>
+	// In many cases, the two names are the same, but could be different in general.
+
 	moduleNames := []string{}
 	apexType := a.properties.ApexType
 	// To avoid creating duplicate build rules, run this function only when primaryApexType is true
@@ -52,12 +56,21 @@ func (a *apexBundle) androidMkForFiles(w io.Writer, apexName, moduleDir string)
 		return moduleNames
 	}
 
+	// b/140136207. When there are overriding APEXes for a VNDK APEX, the symbols file for the overridden
+	// APEX and the overriding APEX will have the same installation paths at /apex/com.android.vndk.v<ver>
+	// as their apexName will be the same. To avoid the path conflicts, skip installing the symbol files
+	// for the overriding VNDK APEXes.
+	symbolFilesNotNeeded := a.vndkApex && len(a.overridableProperties.Overrides) > 0
+	if symbolFilesNotNeeded && apexType != flattenedApex {
+		return moduleNames
+	}
+
 	var postInstallCommands []string
 	for _, fi := range a.filesInfo {
 		if a.linkToSystemLib && fi.transitiveDep && fi.AvailableToPlatform() {
 			// TODO(jiyong): pathOnDevice should come from fi.module, not being calculated here
 			linkTarget := filepath.Join("/system", fi.Path())
-			linkPath := filepath.Join(a.installDir.ToMakePath().String(), apexName, fi.Path())
+			linkPath := filepath.Join(a.installDir.ToMakePath().String(), apexBundleName, fi.Path())
 			mkdirCmd := "mkdir -p " + filepath.Dir(linkPath)
 			linkCmd := "ln -sfn " + linkTarget + " " + linkPath
 			postInstallCommands = append(postInstallCommands, mkdirCmd, linkCmd)
@@ -75,7 +88,7 @@ func (a *apexBundle) androidMkForFiles(w io.Writer, apexName, moduleDir string)
 		if linkToSystemLib {
 			moduleName = fi.moduleName
 		} else {
-			moduleName = fi.moduleName + "." + apexName + a.suffix
+			moduleName = fi.moduleName + "." + apexBundleName + a.suffix
 		}
 
 		if !android.InList(moduleName, moduleNames) {
@@ -99,8 +112,8 @@ func (a *apexBundle) androidMkForFiles(w io.Writer, apexName, moduleDir string)
 		if apexType == flattenedApex {
 			// /system/apex/<name>/{lib|framework|...}
 			fmt.Fprintln(w, "LOCAL_MODULE_PATH :=", filepath.Join(a.installDir.ToMakePath().String(),
-				apexName, fi.installDir))
+				apexBundleName, fi.installDir))
-			if a.primaryApexType {
+			if a.primaryApexType && !symbolFilesNotNeeded {
 				fmt.Fprintln(w, "LOCAL_SOONG_SYMBOL_PATH :=", pathWhenActivated)
 			}
 			if len(fi.symlinks) > 0 {
@@ -236,7 +249,7 @@ func (a *apexBundle) androidMkForType() android.AndroidMkData {
 			apexType := a.properties.ApexType
 			if a.installable() {
 				apexName := proptools.StringDefault(a.properties.Apex_name, name)
-				moduleNames = a.androidMkForFiles(w, apexName, moduleDir)
+				moduleNames = a.androidMkForFiles(w, name, apexName, moduleDir)
 			}
 
 			if apexType == flattenedApex {

apex/apex_test.go

@@ -2217,11 +2217,12 @@ func TestDependenciesInApexManifest(t *testing.T) {
 }
 
 func TestApexName(t *testing.T) {
-	ctx, _ := testApex(t, `
+	ctx, config := testApex(t, `
 		apex {
 			name: "myapex",
 			key: "myapex.key",
 			apex_name: "com.android.myapex",
+			native_shared_libs: ["mylib"],
 		}
 
 		apex_key {
@@ -2229,6 +2230,17 @@ func TestApexName(t *testing.T) {
 			public_key: "testkey.avbpubkey",
 			private_key: "testkey.pem",
 		}
+
+		cc_library {
+			name: "mylib",
+			srcs: ["mylib.cpp"],
+			system_shared_libs: [],
+			stl: "none",
+			apex_available: [
+				"//apex_available:platform",
+				"myapex",
+			],
+		}
 	`)
 
 	module := ctx.ModuleForTests("myapex", "android_common_myapex_image")
@@ -2236,6 +2248,16 @@ func TestApexName(t *testing.T) {
 	ensureContains(t, apexManifestRule.Args["opt"], "-v name com.android.myapex")
 	apexRule := module.Rule("apexRule")
 	ensureContains(t, apexRule.Args["opt_flags"], "--do_not_check_keyname")
+
+	apexBundle := ctx.ModuleForTests("myapex", "android_common_myapex_image").Module().(*apexBundle)
+	data := android.AndroidMkDataForTest(t, config, "", apexBundle)
+	name := apexBundle.BaseModuleName()
+	prefix := "TARGET_"
+	var builder strings.Builder
+	data.Custom(&builder, name, prefix, "", data)
+	androidMk := builder.String()
+	ensureContains(t, androidMk, "LOCAL_MODULE := mylib.myapex\n")
+	ensureNotContains(t, androidMk, "LOCAL_MODULE := mylib.com.android.myapex\n")
 }
 
 func TestNonTestApex(t *testing.T) {