diff --git a/android/deapexer.go b/android/deapexer.go
index 2704b3e..61ae64e 100644
--- a/android/deapexer.go
+++ b/android/deapexer.go
@@ -83,6 +83,10 @@
 	// name of the java libraries exported from the apex
 	// e.g. core-libart
 	exportedModuleNames []string
+
+	// name of the java libraries exported from the apex that should be dexpreopt'd with the .prof
+	// file embedded in the apex
+	dexpreoptProfileGuidedExportedModuleNames []string
 }
 
 // ApexModuleName returns the name of the APEX module that provided the info.
@@ -121,6 +125,14 @@
 	}
 }
 
+func (i *DeapexerInfo) GetDexpreoptProfileGuidedExportedModuleNames() []string {
+	return i.dexpreoptProfileGuidedExportedModuleNames
+}
+
+func (i *DeapexerInfo) AddDexpreoptProfileGuidedExportedModuleNames(names ...string) {
+	i.dexpreoptProfileGuidedExportedModuleNames = append(i.dexpreoptProfileGuidedExportedModuleNames, names...)
+}
+
 type deapexerTagStruct struct {
 	blueprint.BaseDependencyTag
 }
@@ -143,6 +155,9 @@
 	// the path to the extracted file will be stored in the DeapexerInfo using the APEX relative file
 	// path as the key, The path can then be retrieved using the PrebuiltExportPath(key) method.
 	RequiredFilesFromPrebuiltApex(ctx BaseModuleContext) []string
+
+	// Returns true if a transitive dependency of an apex should use a .prof file to guide dexpreopt
+	UseProfileGuidedDexpreopt() bool
 }
 
 // Marker interface that identifies dependencies on modules that may require files from a prebuilt
diff --git a/android/defaults_test.go b/android/defaults_test.go
index a7542ab..0ad0fb8 100644
--- a/android/defaults_test.go
+++ b/android/defaults_test.go
@@ -16,10 +16,13 @@
 
 import (
 	"testing"
+
+	"github.com/google/blueprint"
 )
 
 type defaultsTestProperties struct {
-	Foo []string
+	Foo       []string
+	Path_prop []string `android:"path"`
 }
 
 type defaultsTestModule struct {
@@ -130,3 +133,40 @@
 	// TODO: missing transitive defaults is currently not handled
 	_ = missingTransitiveDefaults
 }
+
+func TestDefaultsPathProperties(t *testing.T) {
+	bp := `
+		defaults {
+			name: "defaults",
+			path_prop: [":gen"],
+		}
+
+		test {
+			name: "foo",
+			defaults: ["defaults"],
+		}
+
+		test {
+			name: "gen",
+		}
+	`
+
+	result := GroupFixturePreparers(
+		prepareForDefaultsTest,
+		FixtureWithRootAndroidBp(bp),
+	).RunTest(t)
+
+	collectDeps := func(m Module) []string {
+		var deps []string
+		result.VisitDirectDeps(m, func(dep blueprint.Module) {
+			deps = append(deps, result.ModuleName(dep))
+		})
+		return deps
+	}
+
+	foo := result.Module("foo", "")
+	defaults := result.Module("defaults", "")
+
+	AssertStringListContains(t, "foo should depend on gen", collectDeps(foo), "gen")
+	AssertStringListDoesNotContain(t, "defaults should not depend on gen", collectDeps(defaults), "gen")
+}
diff --git a/android/path_properties.go b/android/path_properties.go
index fdc4d91..bbfaa8c 100644
--- a/android/path_properties.go
+++ b/android/path_properties.go
@@ -33,6 +33,11 @@
 // The pathDepsMutator automatically adds dependencies on any module that is listed with the
 // ":module" module reference syntax in a property that is tagged with `android:"path"`.
 func pathDepsMutator(ctx BottomUpMutatorContext) {
+	if _, ok := ctx.Module().(DefaultsModule); ok {
+		// Defaults modules shouldn't have dependencies added for path properties, they have already been
+		// squashed into the real modules.
+		return
+	}
 	props := ctx.Module().base().GetProperties()
 	addPathDepsForProps(ctx, props)
 }
diff --git a/android/util.go b/android/util.go
index 51313ce..363b31c 100644
--- a/android/util.go
+++ b/android/util.go
@@ -15,6 +15,7 @@
 package android
 
 import (
+	"cmp"
 	"fmt"
 	"path/filepath"
 	"reflect"
@@ -106,15 +107,8 @@
 	return SortedKeys(m)
 }
 
-type Ordered interface {
-	~string |
-		~float32 | ~float64 |
-		~int | ~int8 | ~int16 | ~int32 | ~int64 |
-		~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr
-}
-
 // SortedKeys returns the keys of the given map in the ascending order.
-func SortedKeys[T Ordered, V any](m map[T]V) []T {
+func SortedKeys[T cmp.Ordered, V any](m map[T]V) []T {
 	if len(m) == 0 {
 		return nil
 	}
diff --git a/android/util_test.go b/android/util_test.go
index 699135b..8e73d83 100644
--- a/android/util_test.go
+++ b/android/util_test.go
@@ -15,6 +15,7 @@
 package android
 
 import (
+	"cmp"
 	"fmt"
 	"reflect"
 	"strconv"
@@ -650,7 +651,7 @@
 	}
 }
 
-func testSortedKeysHelper[K Ordered, V any](t *testing.T, name string, input map[K]V, expected []K) {
+func testSortedKeysHelper[K cmp.Ordered, V any](t *testing.T, name string, input map[K]V, expected []K) {
 	t.Helper()
 	t.Run(name, func(t *testing.T) {
 		actual := SortedKeys(input)
diff --git a/apex/apex_test.go b/apex/apex_test.go
index 7e67c0f..d3959ec 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -1455,6 +1455,7 @@
 			name: "libc",
 			no_libcrt: true,
 			nocrt: true,
+			no_crt_pad_segment: true,
 			stl: "none",
 			system_shared_libs: [],
 			stubs: { versions: ["1"] },
@@ -1469,6 +1470,7 @@
 			name: "libclang_rt.hwasan",
 			no_libcrt: true,
 			nocrt: true,
+			no_crt_pad_segment: true,
 			stl: "none",
 			system_shared_libs: [],
 			srcs: [""],
@@ -1511,6 +1513,7 @@
 			name: "libc",
 			no_libcrt: true,
 			nocrt: true,
+			no_crt_pad_segment: true,
 			stl: "none",
 			system_shared_libs: [],
 			stubs: { versions: ["1"] },
@@ -1521,6 +1524,7 @@
 			name: "libclang_rt.hwasan",
 			no_libcrt: true,
 			nocrt: true,
+			no_crt_pad_segment: true,
 			stl: "none",
 			system_shared_libs: [],
 			srcs: [""],
@@ -3768,13 +3772,6 @@
 				"lib64/libvndk.so",
 				"lib64/libvndksp.so"),
 		},
-		{
-			vndkVersion: "",
-			expectedFiles: append(commonFiles,
-				// Legacy VNDK APEX contains only VNDK-SP files (of core variant)
-				"lib/libvndksp.so",
-				"lib64/libvndksp.so"),
-		},
 	}
 	for _, tc := range testCases {
 		t.Run("VNDK.current with DeviceVndkVersion="+tc.vndkVersion, func(t *testing.T) {
diff --git a/apex/deapexer.go b/apex/deapexer.go
index 5ff622c..a673108 100644
--- a/apex/deapexer.go
+++ b/apex/deapexer.go
@@ -53,6 +53,10 @@
 	// all architectures, e.g. java.
 	CommonModules []string
 
+	// List of modules that use an embedded .prof to guide optimization of the equivalent dexpreopt artifact
+	// This is a subset of CommonModules
+	DexpreoptProfileGuidedModules []string
+
 	// List of files exported from the .apex file by this module
 	//
 	// Each entry is a path from the apex root, e.g. javalib/core-libart.jar.
@@ -128,6 +132,7 @@
 	if len(exports) > 0 {
 		// Make the information available for other modules.
 		di := android.NewDeapexerInfo(apexModuleName(ctx.ModuleName()), exports, p.properties.CommonModules)
+		di.AddDexpreoptProfileGuidedExportedModuleNames(p.properties.DexpreoptProfileGuidedModules...)
 		android.SetProvider(ctx, android.DeapexerProvider, di)
 
 		// Create a sorted list of the files that this exports.
diff --git a/apex/prebuilt.go b/apex/prebuilt.go
index 551942d..399d9b9 100644
--- a/apex/prebuilt.go
+++ b/apex/prebuilt.go
@@ -629,6 +629,7 @@
 
 	// Compute the deapexer properties from the transitive dependencies of this module.
 	commonModules := []string{}
+	dexpreoptProfileGuidedModules := []string{}
 	exportedFiles := []string{}
 	ctx.WalkDeps(func(child, parent android.Module) bool {
 		tag := ctx.OtherModuleDependencyTag(child)
@@ -642,9 +643,14 @@
 		if _, ok := tag.(android.RequiresFilesFromPrebuiltApexTag); ok {
 			commonModules = append(commonModules, name)
 
-			requiredFiles := child.(android.RequiredFilesFromPrebuiltApex).RequiredFilesFromPrebuiltApex(ctx)
+			extract := child.(android.RequiredFilesFromPrebuiltApex)
+			requiredFiles := extract.RequiredFilesFromPrebuiltApex(ctx)
 			exportedFiles = append(exportedFiles, requiredFiles...)
 
+			if extract.UseProfileGuidedDexpreopt() {
+				dexpreoptProfileGuidedModules = append(dexpreoptProfileGuidedModules, name)
+			}
+
 			// Visit the dependencies of this module just in case they also require files from the
 			// prebuilt apex.
 			return true
@@ -657,7 +663,8 @@
 	deapexerProperties := &DeapexerProperties{
 		// Remove any duplicates from the common modules lists as a module may be included via a direct
 		// dependency as well as transitive ones.
-		CommonModules: android.SortedUniqueStrings(commonModules),
+		CommonModules:                 android.SortedUniqueStrings(commonModules),
+		DexpreoptProfileGuidedModules: android.SortedUniqueStrings(dexpreoptProfileGuidedModules),
 	}
 
 	// Populate the exported files property in a fixed order.
diff --git a/apex/systemserver_classpath_fragment_test.go b/apex/systemserver_classpath_fragment_test.go
index 6b2c397..f6c53b2 100644
--- a/apex/systemserver_classpath_fragment_test.go
+++ b/apex/systemserver_classpath_fragment_test.go
@@ -221,8 +221,6 @@
 }
 
 func TestPrebuiltSystemserverclasspathFragmentContents(t *testing.T) {
-	// TODO(spandandas): Fix the rules for profile guided dexpreopt of deapexed prebuilt jars
-	t.Skip()
 	result := android.GroupFixturePreparers(
 		prepareForTestWithSystemserverclasspathFragment,
 		prepareForTestWithMyapex,
@@ -294,8 +292,8 @@
 		"javalib/bar.jar.prof",
 	})
 
-	assertProfileGuided(t, ctx, "foo", "android_common_myapex", false)
-	assertProfileGuided(t, ctx, "bar", "android_common_myapex", true)
+	assertProfileGuidedPrebuilt(t, ctx, "myapex", "foo", false)
+	assertProfileGuidedPrebuilt(t, ctx, "myapex", "bar", true)
 }
 
 func TestSystemserverclasspathFragmentStandaloneContents(t *testing.T) {
@@ -381,8 +379,6 @@
 }
 
 func TestPrebuiltStandaloneSystemserverclasspathFragmentContents(t *testing.T) {
-	// TODO(spandandas): Fix the rules for profile guided dexpreopt of deapexed prebuilt jars
-	t.Skip()
 	result := android.GroupFixturePreparers(
 		prepareForTestWithSystemserverclasspathFragment,
 		prepareForTestWithMyapex,
@@ -447,8 +443,8 @@
 		"javalib/bar.jar.prof",
 	})
 
-	assertProfileGuided(t, ctx, "foo", "android_common_myapex", false)
-	assertProfileGuided(t, ctx, "bar", "android_common_myapex", true)
+	assertProfileGuidedPrebuilt(t, ctx, "myapex", "foo", false)
+	assertProfileGuidedPrebuilt(t, ctx, "myapex", "bar", true)
 }
 
 func assertProfileGuided(t *testing.T, ctx *android.TestContext, moduleName string, variant string, expected bool) {
@@ -458,3 +454,11 @@
 		t.Fatalf("Expected profile-guided to be %v, got %v", expected, actual)
 	}
 }
+
+func assertProfileGuidedPrebuilt(t *testing.T, ctx *android.TestContext, apexName string, moduleName string, expected bool) {
+	dexpreopt := ctx.ModuleForTests(apexName, "android_common_"+apexName).Rule("dexpreopt." + moduleName)
+	actual := strings.Contains(dexpreopt.RuleParams.Command, "--profile-file=")
+	if expected != actual {
+		t.Fatalf("Expected profile-guided to be %v, got %v", expected, actual)
+	}
+}
diff --git a/apex/vndk_test.go b/apex/vndk_test.go
index e2aee96..894aece 100644
--- a/apex/vndk_test.go
+++ b/apex/vndk_test.go
@@ -8,66 +8,6 @@
 	"android/soong/android"
 )
 
-func TestVndkApexForVndkLite(t *testing.T) {
-	ctx := testApex(t, `
-		apex_vndk {
-			name: "com.android.vndk.current",
-			key: "com.android.vndk.current.key",
-			updatable: false,
-		}
-
-		apex_key {
-			name: "com.android.vndk.current.key",
-			public_key: "testkey.avbpubkey",
-			private_key: "testkey.pem",
-		}
-
-		cc_library {
-			name: "libvndk",
-			srcs: ["mylib.cpp"],
-			vendor_available: true,
-			product_available: true,
-			vndk: {
-				enabled: true,
-			},
-			system_shared_libs: [],
-			stl: "none",
-			apex_available: [ "com.android.vndk.current" ],
-		}
-
-		cc_library {
-			name: "libvndksp",
-			srcs: ["mylib.cpp"],
-			vendor_available: true,
-			product_available: true,
-			vndk: {
-				enabled: true,
-				support_system_process: true,
-			},
-			system_shared_libs: [],
-			stl: "none",
-			apex_available: [ "com.android.vndk.current" ],
-		}
-	`+vndkLibrariesTxtFiles("current"),
-		android.FixtureModifyProductVariables(func(variables android.FixtureProductVariables) {
-			variables.DeviceVndkVersion = proptools.StringPtr("")
-			variables.KeepVndk = proptools.BoolPtr(true)
-		}),
-	)
-	// VNDK-Lite contains only core variants of VNDK-Sp libraries
-	ensureExactContents(t, ctx, "com.android.vndk.current", "android_common", []string{
-		"lib/libvndksp.so",
-		"lib/libc++.so",
-		"lib64/libvndksp.so",
-		"lib64/libc++.so",
-		"etc/llndk.libraries.29.txt",
-		"etc/vndkcore.libraries.29.txt",
-		"etc/vndksp.libraries.29.txt",
-		"etc/vndkprivate.libraries.29.txt",
-		"etc/vndkproduct.libraries.29.txt",
-	})
-}
-
 func TestVndkApexUsesVendorVariant(t *testing.T) {
 	bp := `
 		apex_vndk {
diff --git a/cc/config/bionic.go b/cc/config/bionic.go
index a1e3851..ed724f5 100644
--- a/cc/config/bionic.go
+++ b/cc/config/bionic.go
@@ -24,6 +24,7 @@
 	bionicCrtBeginStaticBinary, bionicCrtEndStaticBinary   = []string{"crtbegin_static"}, []string{"crtend_android"}
 	bionicCrtBeginSharedBinary, bionicCrtEndSharedBinary   = []string{"crtbegin_dynamic"}, []string{"crtend_android"}
 	bionicCrtBeginSharedLibrary, bionicCrtEndSharedLibrary = []string{"crtbegin_so"}, []string{"crtend_so"}
+	bionicCrtPadSegmentSharedLibrary                       = []string{"crt_pad_segment"}
 )
 
 func (toolchainBionic) Bionic() bool { return true }
@@ -36,9 +37,10 @@
 
 func (toolchainBionic) AvailableLibraries() []string { return nil }
 
-func (toolchainBionic) CrtBeginStaticBinary() []string  { return bionicCrtBeginStaticBinary }
-func (toolchainBionic) CrtBeginSharedBinary() []string  { return bionicCrtBeginSharedBinary }
-func (toolchainBionic) CrtBeginSharedLibrary() []string { return bionicCrtBeginSharedLibrary }
-func (toolchainBionic) CrtEndStaticBinary() []string    { return bionicCrtEndStaticBinary }
-func (toolchainBionic) CrtEndSharedBinary() []string    { return bionicCrtEndSharedBinary }
-func (toolchainBionic) CrtEndSharedLibrary() []string   { return bionicCrtEndSharedLibrary }
+func (toolchainBionic) CrtBeginStaticBinary() []string       { return bionicCrtBeginStaticBinary }
+func (toolchainBionic) CrtBeginSharedBinary() []string       { return bionicCrtBeginSharedBinary }
+func (toolchainBionic) CrtBeginSharedLibrary() []string      { return bionicCrtBeginSharedLibrary }
+func (toolchainBionic) CrtEndStaticBinary() []string         { return bionicCrtEndStaticBinary }
+func (toolchainBionic) CrtEndSharedBinary() []string         { return bionicCrtEndSharedBinary }
+func (toolchainBionic) CrtEndSharedLibrary() []string        { return bionicCrtEndSharedLibrary }
+func (toolchainBionic) CrtPadSegmentSharedLibrary() []string { return bionicCrtPadSegmentSharedLibrary }
diff --git a/cc/config/toolchain.go b/cc/config/toolchain.go
index 62f75d1..71e98fe 100644
--- a/cc/config/toolchain.go
+++ b/cc/config/toolchain.go
@@ -100,6 +100,7 @@
 	CrtEndStaticBinary() []string
 	CrtEndSharedBinary() []string
 	CrtEndSharedLibrary() []string
+	CrtPadSegmentSharedLibrary() []string
 
 	// DefaultSharedLibraries returns the list of shared libraries that will be added to all
 	// targets unless they explicitly specify system_shared_libs.
@@ -155,12 +156,13 @@
 
 type toolchainNoCrt struct{}
 
-func (toolchainNoCrt) CrtBeginStaticBinary() []string  { return nil }
-func (toolchainNoCrt) CrtBeginSharedBinary() []string  { return nil }
-func (toolchainNoCrt) CrtBeginSharedLibrary() []string { return nil }
-func (toolchainNoCrt) CrtEndStaticBinary() []string    { return nil }
-func (toolchainNoCrt) CrtEndSharedBinary() []string    { return nil }
-func (toolchainNoCrt) CrtEndSharedLibrary() []string   { return nil }
+func (toolchainNoCrt) CrtBeginStaticBinary() []string       { return nil }
+func (toolchainNoCrt) CrtBeginSharedBinary() []string       { return nil }
+func (toolchainNoCrt) CrtBeginSharedLibrary() []string      { return nil }
+func (toolchainNoCrt) CrtEndStaticBinary() []string         { return nil }
+func (toolchainNoCrt) CrtEndSharedBinary() []string         { return nil }
+func (toolchainNoCrt) CrtEndSharedLibrary() []string        { return nil }
+func (toolchainNoCrt) CrtPadSegmentSharedLibrary() []string { return nil }
 
 func (toolchainBase) DefaultSharedLibraries() []string {
 	return nil
diff --git a/cc/config/x86_linux_host.go b/cc/config/x86_linux_host.go
index f95da0b..f497bf9 100644
--- a/cc/config/x86_linux_host.go
+++ b/cc/config/x86_linux_host.go
@@ -328,12 +328,13 @@
 
 func (toolchainMusl) Musl() bool { return true }
 
-func (toolchainMusl) CrtBeginStaticBinary() []string  { return muslCrtBeginStaticBinary }
-func (toolchainMusl) CrtBeginSharedBinary() []string  { return muslCrtBeginSharedBinary }
-func (toolchainMusl) CrtBeginSharedLibrary() []string { return muslCrtBeginSharedLibrary }
-func (toolchainMusl) CrtEndStaticBinary() []string    { return muslCrtEndStaticBinary }
-func (toolchainMusl) CrtEndSharedBinary() []string    { return muslCrtEndSharedBinary }
-func (toolchainMusl) CrtEndSharedLibrary() []string   { return muslCrtEndSharedLibrary }
+func (toolchainMusl) CrtBeginStaticBinary() []string       { return muslCrtBeginStaticBinary }
+func (toolchainMusl) CrtBeginSharedBinary() []string       { return muslCrtBeginSharedBinary }
+func (toolchainMusl) CrtBeginSharedLibrary() []string      { return muslCrtBeginSharedLibrary }
+func (toolchainMusl) CrtEndStaticBinary() []string         { return muslCrtEndStaticBinary }
+func (toolchainMusl) CrtEndSharedBinary() []string         { return muslCrtEndSharedBinary }
+func (toolchainMusl) CrtEndSharedLibrary() []string        { return muslCrtEndSharedLibrary }
+func (toolchainMusl) CrtPadSegmentSharedLibrary() []string { return nil }
 
 func (toolchainMusl) DefaultSharedLibraries() []string { return MuslDefaultSharedLibraries }
 
diff --git a/cc/library.go b/cc/library.go
index ff30d40..d091261 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -974,6 +974,10 @@
 		if library.baseLinker.Properties.crt() {
 			deps.CrtBegin = append(deps.CrtBegin, ctx.toolchain().CrtBeginSharedLibrary()...)
 			deps.CrtEnd = append(deps.CrtEnd, ctx.toolchain().CrtEndSharedLibrary()...)
+
+		}
+		if library.baseLinker.Properties.crtPadSegment() {
+			deps.CrtEnd = append(deps.CrtEnd, ctx.toolchain().CrtPadSegmentSharedLibrary()...)
 		}
 		deps.WholeStaticLibs = append(deps.WholeStaticLibs, library.SharedProperties.Shared.Whole_static_libs...)
 		deps.StaticLibs = append(deps.StaticLibs, library.SharedProperties.Shared.Static_libs...)
@@ -1350,10 +1354,12 @@
 		fileName+".lsdump")
 }
 
-func getRefAbiDumpDir(isNdk bool) string {
+func getRefAbiDumpDir(isNdk, isLlndk bool) string {
 	var dirName string
 	if isNdk {
 		dirName = "ndk"
+	} else if isLlndk {
+		dirName = "vndk"
 	} else {
 		dirName = "platform"
 	}
@@ -1476,7 +1482,7 @@
 
 		addLsdumpPath(classifySourceAbiDump(ctx) + ":" + library.sAbiOutputFile.String())
 
-		dumpDir := getRefAbiDumpDir(isNdk)
+		dumpDir := getRefAbiDumpDir(isNdk, isLlndk)
 		binderBitness := ctx.DeviceConfig().BinderBitness()
 		// Check against the previous version.
 		prevVersionInt := prevRefAbiDumpVersion(ctx, dumpDir)
diff --git a/cc/linker.go b/cc/linker.go
index 85c128e..2c50db2 100644
--- a/cc/linker.go
+++ b/cc/linker.go
@@ -91,6 +91,10 @@
 	// compiling crt or libc.
 	Nocrt *bool `android:"arch_variant"`
 
+	// don't link in crt_pad_segment. This flag is currently only used internal to
+	// soong for testing and for vndk prebuilt shared libraries.
+	No_crt_pad_segment *bool `android:"arch_variant"`
+
 	// deprecated and ignored because lld makes it unnecessary. See b/189475744.
 	Group_static_libs *bool `android:"arch_variant"`
 
@@ -253,6 +257,10 @@
 	return blp.No_libcrt == nil || !*blp.No_libcrt
 }
 
+func (blp *BaseLinkerProperties) crtPadSegment() bool {
+	return blp.No_crt_pad_segment == nil || !*blp.No_crt_pad_segment
+}
+
 func NewBaseLinker(sanitize *sanitize) *baseLinker {
 	return &baseLinker{sanitize: sanitize}
 }
diff --git a/cc/testing.go b/cc/testing.go
index bac41e7..9c2900c 100644
--- a/cc/testing.go
+++ b/cc/testing.go
@@ -77,6 +77,7 @@
 			no_libcrt: true,
 			sdk_version: "minimum",
 			nocrt: true,
+			no_crt_pad_segment: true,
 			system_shared_libs: [],
 			stl: "none",
 			check_elf_files: false,
@@ -385,6 +386,11 @@
 		}
 
 		cc_object {
+			name: "crt_pad_segment",
+			defaults: ["crt_defaults"],
+		}
+
+		cc_object {
 			name: "crtbrand",
 			defaults: ["crt_defaults"],
 			srcs: ["crtbrand.c"],
diff --git a/cc/vendor_snapshot_test.go b/cc/vendor_snapshot_test.go
index 890a533..0a55431 100644
--- a/cc/vendor_snapshot_test.go
+++ b/cc/vendor_snapshot_test.go
@@ -341,6 +341,7 @@
 		vendor: true,
 		nocrt: true,
 		no_libcrt: true,
+		no_crt_pad_segment: true,
 		stl: "none",
 		system_shared_libs: [],
 		compile_multilib: "64",
@@ -458,6 +459,7 @@
 		vendor: true,
 		nocrt: true,
 		no_libcrt: true,
+		no_crt_pad_segment: true,
 		stl: "none",
 		system_shared_libs: [],
 	}
@@ -467,6 +469,7 @@
 		vendor: true,
 		nocrt: true,
 		no_libcrt: true,
+		no_crt_pad_segment: true,
 		stl: "none",
 		system_shared_libs: [],
 		shared_libs: ["libvndk", "libvendor_available", "libllndk"],
@@ -487,6 +490,7 @@
 		vendor: true,
 		nocrt: true,
 		no_libcrt: true,
+		no_crt_pad_segment: true,
 		stl: "none",
 		system_shared_libs: [],
 		static_libs: ["libvendor"],
@@ -501,6 +505,7 @@
 		vendor: true,
 		nocrt: true,
 		no_libcrt: true,
+		no_crt_pad_segment: true,
 		stl: "none",
 		system_shared_libs: [],
 		vndk: {
@@ -597,6 +602,7 @@
 		target_arch: "arm64",
 		compile_multilib: "both",
 		vendor: true,
+		no_crt_pad_segment: true,
 		shared_libs: [
 			"libvendor_without_snapshot",
 			"libvendor_available",
@@ -620,6 +626,7 @@
 		target_arch: "arm64",
 		compile_multilib: "both",
 		vendor: true,
+		no_crt_pad_segment: true,
 		overrides: ["libvendor"],
 		shared_libs: [
 			"libvendor_without_snapshot",
@@ -657,6 +664,7 @@
 		target_arch: "arm64",
 		compile_multilib: "32",
 		vendor: true,
+		no_crt_pad_segment: true,
 		arch: {
 			arm: {
 				src: "lib32.so",
@@ -683,6 +691,7 @@
 		target_arch: "arm64",
 		compile_multilib: "64",
 		vendor: true,
+		no_crt_pad_segment: true,
 		arch: {
 			arm64: {
 				src: "lib64.so",
@@ -722,6 +731,7 @@
 		target_arch: "arm64",
 		compile_multilib: "both",
 		vendor: true,
+		no_crt_pad_segment: true,
 		arch: {
 			arm64: {
 				src: "libvendor_available.so",
diff --git a/cc/vndk.go b/cc/vndk.go
index 0e0dba9..2b2ea64 100644
--- a/cc/vndk.go
+++ b/cc/vndk.go
@@ -377,22 +377,17 @@
 			return false
 		}
 
-		// ignore prebuilt vndk modules that are newer than or equal to the platform vndk version
-		platformVndkApiLevel := android.ApiLevelOrPanic(mctx, mctx.DeviceConfig().PlatformVndkVersion())
-		if platformVndkApiLevel.LessThanOrEqualTo(android.ApiLevelOrPanic(mctx, p.Version())) {
-			return false
+		platformVndkVersion := mctx.DeviceConfig().PlatformVndkVersion()
+		if platformVndkVersion != "" {
+			// ignore prebuilt vndk modules that are newer than or equal to the platform vndk version
+			platformVndkApiLevel := android.ApiLevelOrPanic(mctx, platformVndkVersion)
+			if platformVndkApiLevel.LessThanOrEqualTo(android.ApiLevelOrPanic(mctx, p.Version())) {
+				return false
+			}
 		}
 	}
 
 	if lib, ok := m.linker.(libraryInterface); ok {
-		// VNDK APEX for VNDK-Lite devices will have VNDK-SP libraries from core variants
-		if mctx.DeviceConfig().VndkVersion() == "" {
-			// b/73296261: filter out libz.so because it is considered as LLNDK for VNDK-lite devices
-			if mctx.ModuleName() == "libz" {
-				return false
-			}
-			return m.ImageVariation().Variation == android.CoreVariation && lib.shared() && m.IsVndkSp() && !m.IsVndkExt()
-		}
 		// VNDK APEX doesn't need stub variants
 		if lib.buildStubs() {
 			return false
diff --git a/cc/vndk_prebuilt.go b/cc/vndk_prebuilt.go
index eb1790f..43030b8 100644
--- a/cc/vndk_prebuilt.go
+++ b/cc/vndk_prebuilt.go
@@ -131,11 +131,14 @@
 
 func (p *vndkPrebuiltLibraryDecorator) link(ctx ModuleContext,
 	flags Flags, deps PathDeps, objs Objects) android.Path {
-	platformVndkApiLevel := android.ApiLevelOrPanic(ctx, ctx.DeviceConfig().PlatformVndkVersion())
-	if platformVndkApiLevel.LessThanOrEqualTo(android.ApiLevelOrPanic(ctx, p.Version())) {
-		// This prebuilt VNDK module is not required for the current build
-		ctx.Module().HideFromMake()
-		return nil
+	platformVndkVersion := ctx.DeviceConfig().PlatformVndkVersion()
+	if platformVndkVersion != "" {
+		platformVndkApiLevel := android.ApiLevelOrPanic(ctx, platformVndkVersion)
+		if platformVndkApiLevel.LessThanOrEqualTo(android.ApiLevelOrPanic(ctx, p.Version())) {
+			// This prebuilt VNDK module is not required for the current build
+			ctx.Module().HideFromMake()
+			return nil
+		}
 	}
 
 	if !p.MatchesWithDevice(ctx.DeviceConfig()) {
@@ -232,6 +235,7 @@
 	prebuilt.properties.Check_elf_files = BoolPtr(false)
 	prebuilt.baseLinker.Properties.No_libcrt = BoolPtr(true)
 	prebuilt.baseLinker.Properties.Nocrt = BoolPtr(true)
+	prebuilt.baseLinker.Properties.No_crt_pad_segment = BoolPtr(true)
 
 	// Prevent default system libs (libc, libm, and libdl) from being linked
 	if prebuilt.baseLinker.Properties.System_shared_libs == nil {
@@ -246,14 +250,6 @@
 		&prebuilt.properties,
 	)
 
-	android.AddLoadHook(module, func(ctx android.LoadHookContext) {
-		// empty BOARD_VNDK_VERSION implies that the device won't support
-		// system only OTA. In this case, VNDK snapshots aren't needed.
-		if ctx.DeviceConfig().VndkVersion() == "" {
-			ctx.Module().Disable()
-		}
-	})
-
 	return module
 }
 
diff --git a/java/androidmk.go b/java/androidmk.go
index c86dcf4..b523594 100644
--- a/java/androidmk.go
+++ b/java/androidmk.go
@@ -209,9 +209,10 @@
 		return []android.AndroidMkEntries{}
 	}
 	return []android.AndroidMkEntries{android.AndroidMkEntries{
-		Class:      "JAVA_LIBRARIES",
-		OutputFile: android.OptionalPathForPath(prebuilt.combinedClasspathFile),
-		Include:    "$(BUILD_SYSTEM)/soong_java_prebuilt.mk",
+		Class:        "JAVA_LIBRARIES",
+		OverrideName: prebuilt.BaseModuleName(),
+		OutputFile:   android.OptionalPathForPath(prebuilt.combinedClasspathFile),
+		Include:      "$(BUILD_SYSTEM)/soong_java_prebuilt.mk",
 		ExtraEntries: []android.AndroidMkExtraEntriesFunc{
 			func(ctx android.AndroidMkExtraEntriesContext, entries *android.AndroidMkEntries) {
 				entries.SetBool("LOCAL_UNINSTALLABLE_MODULE", !Bool(prebuilt.properties.Installable))
diff --git a/java/bootclasspath_fragment.go b/java/bootclasspath_fragment.go
index 2c13d99..7c45d30 100644
--- a/java/bootclasspath_fragment.go
+++ b/java/bootclasspath_fragment.go
@@ -1105,6 +1105,10 @@
 	return nil
 }
 
+func (module *PrebuiltBootclasspathFragmentModule) UseProfileGuidedDexpreopt() bool {
+	return false
+}
+
 var _ android.RequiredFilesFromPrebuiltApex = (*PrebuiltBootclasspathFragmentModule)(nil)
 
 func prebuiltBootclasspathFragmentFactory() android.Module {
diff --git a/java/dexpreopt.go b/java/dexpreopt.go
index 4c0a0a1..9db9b1b 100644
--- a/java/dexpreopt.go
+++ b/java/dexpreopt.go
@@ -282,6 +282,17 @@
 	d.installPath = android.PathForModuleInPartitionInstall(ctx, "", strings.TrimPrefix(dexpreopt.GetSystemServerDexLocation(ctx, dc, libraryName), "/"))
 	// generate the rules for creating the .odex and .vdex files for this system server jar
 	dexJarFile := di.PrebuiltExportPath(ApexRootRelativePathToJavaLib(libraryName))
+
+	d.inputProfilePathOnHost = nil // reset: TODO(spandandas): Make dexpreopter stateless
+	if android.InList(libraryName, di.GetDexpreoptProfileGuidedExportedModuleNames()) {
+		// Set the profile path to guide optimization
+		prof := di.PrebuiltExportPath(ApexRootRelativePathToJavaLib(libraryName) + ".prof")
+		if prof == nil {
+			ctx.ModuleErrorf("Could not find a .prof file in this prebuilt apex")
+		}
+		d.inputProfilePathOnHost = prof
+	}
+
 	d.dexpreopt(ctx, libraryName, dexJarFile)
 }
 
@@ -354,6 +365,7 @@
 	var profileClassListing android.OptionalPath
 	var profileBootListing android.OptionalPath
 	profileIsTextListing := false
+
 	if d.inputProfilePathOnHost != nil {
 		profileClassListing = android.OptionalPathForPath(d.inputProfilePathOnHost)
 	} else if BoolDefault(d.dexpreoptProperties.Dex_preopt.Profile_guided, true) && !forPrebuiltApex(ctx) {
diff --git a/java/droidstubs.go b/java/droidstubs.go
index 6ef2afe..dc3a0ec 100644
--- a/java/droidstubs.go
+++ b/java/droidstubs.go
@@ -537,11 +537,17 @@
 	var apiVersions android.Path
 	if proptools.Bool(d.properties.Api_levels_annotations_enabled) {
 		d.apiLevelsGenerationFlags(ctx, cmd, stubsType, apiVersionsXml)
-		apiVersions = d.everythingArtifacts.apiVersionsXml
+		apiVersions = apiVersionsXml
 	} else {
 		ctx.VisitDirectDepsWithTag(metalavaAPILevelsModuleTag, func(m android.Module) {
 			if s, ok := m.(*Droidstubs); ok {
-				apiVersions = s.everythingArtifacts.apiVersionsXml
+				if stubsType == Everything {
+					apiVersions = s.everythingArtifacts.apiVersionsXml
+				} else if stubsType == Exportable {
+					apiVersions = s.exportableArtifacts.apiVersionsXml
+				} else {
+					ctx.ModuleErrorf("%s stubs type does not generate api-versions.xml file", stubsType.String())
+				}
 			} else {
 				ctx.PropertyErrorf("api_levels_module",
 					"module %q is not a droidstubs module", ctx.OtherModuleName(m))
diff --git a/java/java.go b/java/java.go
index d536ca1..cd249ed 100644
--- a/java/java.go
+++ b/java/java.go
@@ -1837,6 +1837,7 @@
 func (al *ApiLibrary) DepsMutator(ctx android.BottomUpMutatorContext) {
 	apiContributions := al.properties.Api_contributions
 	addValidations := !ctx.Config().IsEnvTrue("DISABLE_STUB_VALIDATION") &&
+		!ctx.Config().IsEnvTrue("WITHOUT_CHECK_API") &&
 		proptools.BoolDefault(al.properties.Enable_validation, true)
 	for _, apiContributionName := range apiContributions {
 		ctx.AddDependency(ctx.Module(), javaApiContributionTag, apiContributionName)
@@ -2089,6 +2090,11 @@
 		// that depend on this module, as well as to aidl for this module.
 		Export_include_dirs []string
 	}
+
+	// Name of the source soong module that gets shadowed by this prebuilt
+	// If unspecified, follows the naming convention that the source module of
+	// the prebuilt is Name() without "prebuilt_" prefix
+	Source_module_name *string
 }
 
 type Import struct {
@@ -2162,12 +2168,16 @@
 	return j.properties.Jars
 }
 
+func (j *Import) BaseModuleName() string {
+	return proptools.StringDefault(j.properties.Source_module_name, j.ModuleBase.Name())
+}
+
 func (j *Import) Name() string {
 	return j.prebuilt.Name(j.ModuleBase.Name())
 }
 
 func (j *Import) Stem() string {
-	return proptools.StringDefault(j.properties.Stem, j.ModuleBase.Name())
+	return proptools.StringDefault(j.properties.Stem, j.BaseModuleName())
 }
 
 func (a *Import) JacocoReportClassesFile() android.Path {
@@ -2453,6 +2463,10 @@
 	return requiredFilesFromPrebuiltApexForImport(name, &j.dexpreopter)
 }
 
+func (j *Import) UseProfileGuidedDexpreopt() bool {
+	return proptools.Bool(j.importDexpreoptProperties.Dex_preopt.Profile_guided)
+}
+
 // Add compile time check for interface implementation
 var _ android.IDEInfo = (*Import)(nil)
 var _ android.IDECustomizedModuleName = (*Import)(nil)
diff --git a/java/java_test.go b/java/java_test.go
index 0891ab6..42301d8 100644
--- a/java/java_test.go
+++ b/java/java_test.go
@@ -24,6 +24,7 @@
 	"strings"
 	"testing"
 
+	"github.com/google/blueprint"
 	"github.com/google/blueprint/proptools"
 
 	"android/soong/aconfig"
@@ -2521,3 +2522,105 @@
 			apiScopePublic.stubsLibraryModuleName("foo"), "android_common",
 			apiScopePublic.apiLibraryModuleName("foo")))
 }
+
+func TestMultiplePrebuilts(t *testing.T) {
+	bp := `
+		// an rdep
+		java_library {
+			name: "foo",
+			libs: ["bar"],
+		}
+
+		// multiple variations of dep
+		// source
+		java_library {
+			name: "bar",
+			srcs: ["bar.java"],
+		}
+		// prebuilt "v1"
+		java_import {
+			name: "bar",
+			jars: ["bar.jar"],
+		}
+		// prebuilt "v2"
+		java_import {
+			name: "bar.v2",
+			source_module_name: "bar",
+			jars: ["bar.v1.jar"],
+		}
+
+		// selectors
+		apex_contributions {
+			name: "myapex_contributions",
+			contents: ["%v"],
+		}
+	`
+	hasDep := func(ctx *android.TestResult, m android.Module, wantDep android.Module) bool {
+		t.Helper()
+		var found bool
+		ctx.VisitDirectDeps(m, func(dep blueprint.Module) {
+			if dep == wantDep {
+				found = true
+			}
+		})
+		return found
+	}
+
+	hasFileWithStem := func(m android.TestingModule, stem string) bool {
+		t.Helper()
+		for _, o := range m.AllOutputs() {
+			_, file := filepath.Split(o)
+			if file == stem+".jar" {
+				return true
+			}
+		}
+		return false
+	}
+
+	testCases := []struct {
+		desc                   string
+		selectedDependencyName string
+		expectedDependencyName string
+	}{
+		{
+			desc:                   "Source library is selected using apex_contributions",
+			selectedDependencyName: "bar",
+			expectedDependencyName: "bar",
+		},
+		{
+			desc:                   "Prebuilt library v1 is selected using apex_contributions",
+			selectedDependencyName: "prebuilt_bar",
+			expectedDependencyName: "prebuilt_bar",
+		},
+		{
+			desc:                   "Prebuilt library v2 is selected using apex_contributions",
+			selectedDependencyName: "prebuilt_bar.v2",
+			expectedDependencyName: "prebuilt_bar.v2",
+		},
+	}
+
+	for _, tc := range testCases {
+		ctx := android.GroupFixturePreparers(
+			prepareForJavaTest,
+			android.FixtureModifyProductVariables(func(variables android.FixtureProductVariables) {
+				variables.BuildFlags = map[string]string{
+					"RELEASE_APEX_CONTRIBUTIONS_ADSERVICES": "myapex_contributions",
+				}
+			}),
+		).RunTestWithBp(t, fmt.Sprintf(bp, tc.selectedDependencyName))
+
+		// check that rdep gets the correct variation of dep
+		foo := ctx.ModuleForTests("foo", "android_common")
+		expectedDependency := ctx.ModuleForTests(tc.expectedDependencyName, "android_common")
+		android.AssertBoolEquals(t, fmt.Sprintf("expected dependency from %s to %s\n", foo.Module().Name(), tc.expectedDependencyName), true, hasDep(ctx, foo.Module(), expectedDependency.Module()))
+
+		// check that output file of dep is always bar.jar
+		// The filename should be agnostic to source/prebuilt/prebuilt_version
+		android.AssertBoolEquals(t, fmt.Sprintf("could not find bar.jar in outputs of %s. All Outputs %v\n", tc.expectedDependencyName, expectedDependency.AllOutputs()), true, hasFileWithStem(expectedDependency, "bar"))
+
+		// check LOCAL_MODULE of the selected module name
+		// the prebuilt should have the same LOCAL_MODULE when exported to make
+		entries := android.AndroidMkEntriesForTest(t, ctx.TestContext, expectedDependency.Module())[0]
+		android.AssertStringEquals(t, "unexpected LOCAL_MODULE", "bar", entries.EntryMap["LOCAL_MODULE"][0])
+	}
+}
diff --git a/java/sdk_library.go b/java/sdk_library.go
index 2bf6644..49e6727 100644
--- a/java/sdk_library.go
+++ b/java/sdk_library.go
@@ -3019,6 +3019,10 @@
 	return requiredFilesFromPrebuiltApexForImport(name, &module.dexpreopter)
 }
 
+func (j *SdkLibraryImport) UseProfileGuidedDexpreopt() bool {
+	return proptools.Bool(j.importDexpreoptProperties.Dex_preopt.Profile_guided)
+}
+
 // java_sdk_library_xml
 type sdkLibraryXml struct {
 	android.ModuleBase
diff --git a/java/systemserver_classpath_fragment.go b/java/systemserver_classpath_fragment.go
index 30dd55f..59c5466 100644
--- a/java/systemserver_classpath_fragment.go
+++ b/java/systemserver_classpath_fragment.go
@@ -313,6 +313,10 @@
 	return nil
 }
 
+func (module *prebuiltSystemServerClasspathModule) UseProfileGuidedDexpreopt() bool {
+	return false
+}
+
 var _ android.RequiredFilesFromPrebuiltApex = (*prebuiltSystemServerClasspathModule)(nil)
 
 func prebuiltSystemServerClasspathModuleFactory() android.Module {
diff --git a/python/scripts/precompile_python.py b/python/scripts/precompile_python.py
index e12e7d2..80e7c76 100644
--- a/python/scripts/precompile_python.py
+++ b/python/scripts/precompile_python.py
@@ -16,6 +16,7 @@
 import argparse
 import py_compile
 import os
+import sys
 import shutil
 import tempfile
 import zipfile
@@ -23,22 +24,31 @@
 # This file needs to support both python 2 and 3.
 
 
-def process_one_file(name, inf, outzip):
-    if not name.endswith('.py'):
-        outzip.writestr(name, inf.read())
+def process_one_file(info, infile, outzip):
+    if not info.filename.endswith('.py'):
+        outzip.writestr(info, infile.read())
         return
 
     # Unfortunately py_compile requires the input/output files to be written
     # out to disk.
     with tempfile.NamedTemporaryFile(prefix="Soong_precompile_", delete=False) as tmp:
-        shutil.copyfileobj(inf, tmp)
+        shutil.copyfileobj(infile, tmp)
         in_name = tmp.name
     with tempfile.NamedTemporaryFile(prefix="Soong_precompile_", delete=False) as tmp:
         out_name = tmp.name
     try:
-        py_compile.compile(in_name, out_name, name, doraise=True)
+        # Ensure deterministic pyc by using the hash rather than timestamp.
+        # This is required to improve caching in accelerated builds.
+        # Only works on Python 3.7+ (see https://docs.python.org/3/library/py_compile.html#py_compile.PycInvalidationMode)
+        # which should cover most updated branches and developer machines.
+        if sys.version_info >= (3, 7):
+            py_compile.compile(in_name, out_name, info.filename, doraise=True, invalidation_mode=py_compile.PycInvalidationMode.CHECKED_HASH)
+        else:
+            py_compile.compile(in_name, out_name, info.filename, doraise=True)
         with open(out_name, 'rb') as f:
-            outzip.writestr(name + 'c', f.read())
+            info.filename = info.filename + 'c'
+            # Use ZipInfo rather than str to reuse timestamps for deterministic zip files.
+            outzip.writestr(info, f.read())
     finally:
         os.remove(in_name)
         os.remove(out_name)
@@ -52,9 +62,9 @@
 
     with open(args.dst_zip, 'wb') as outf, open(args.src_zip, 'rb') as inf:
         with zipfile.ZipFile(outf, mode='w') as outzip, zipfile.ZipFile(inf, mode='r') as inzip:
-            for name in inzip.namelist():
-                with inzip.open(name, mode='r') as inzipf:
-                    process_one_file(name, inzipf, outzip)
+            for info in inzip.infolist():
+                with inzip.open(info.filename, mode='r') as inzipf:
+                    process_one_file(info, inzipf, outzip)
 
 
 if __name__ == "__main__":
diff --git a/rust/vendor_snapshot_test.go b/rust/vendor_snapshot_test.go
index 4f45799..7ebe66b 100644
--- a/rust/vendor_snapshot_test.go
+++ b/rust/vendor_snapshot_test.go
@@ -553,6 +553,7 @@
 		vendor: true,
 		nocrt: true,
 		no_libcrt: true,
+		no_crt_pad_segment: true,
 		stl: "none",
 		system_shared_libs: [],
 	}
@@ -857,6 +858,7 @@
 		target_arch: "arm64",
 		compile_multilib: "32",
 		vendor: true,
+		no_crt_pad_segment: true,
 		arch: {
 			arm: {
 				src: "lib32.so",
@@ -870,6 +872,7 @@
 		target_arch: "arm64",
 		compile_multilib: "64",
 		vendor: true,
+		no_crt_pad_segment: true,
 		arch: {
 			arm64: {
 				src: "lib64.so",
@@ -882,6 +885,7 @@
 		target_arch: "arm64",
 		compile_multilib: "64",
 		vendor: true,
+		no_crt_pad_segment: true,
 		arch: {
 			arm64: {
 				src: "liblog.so",
@@ -913,6 +917,7 @@
 		target_arch: "arm64",
 		compile_multilib: "both",
 		vendor: true,
+		no_crt_pad_segment: true,
 		arch: {
 			arm64: {
 				src: "libvendor_available.so",