Make manifest and APK agree on uncompressed native libs

Only put uncompressed native libs in an APK if the min_sdk_version
supports it (>= 23, Marshmallow), and set
android:extractNativeLibs="false" in the AndroidManifest.xml so
that the platform won't extract them anyways.

Bug: 117618214
Test: m checkbuild
Change-Id: I760017e48bf3c6b618aabde0982df45995765d48
diff --git a/java/aar.go b/java/aar.go
index fcdd518..f6a3d3a 100644
--- a/java/aar.go
+++ b/java/aar.go
@@ -75,6 +75,7 @@
 	rTxt                  android.Path
 	extraAaptPackagesFile android.Path
 	isLibrary             bool
+	uncompressedJNI       bool
 
 	aaptProperties aaptProperties
 }
@@ -181,7 +182,7 @@
 	manifestFile := proptools.StringDefault(a.aaptProperties.Manifest, "AndroidManifest.xml")
 	manifestSrcPath := android.PathForModuleSrc(ctx, manifestFile)
 
-	manifestPath := manifestMerger(ctx, manifestSrcPath, sdkContext, staticLibManifests, a.isLibrary)
+	manifestPath := manifestMerger(ctx, manifestSrcPath, sdkContext, staticLibManifests, a.isLibrary, a.uncompressedJNI)
 
 	linkFlags, linkDeps, resDirs, overlayDirs, rroDirs := a.aapt2Flags(ctx, sdkContext, manifestPath)
 
@@ -330,7 +331,7 @@
 }
 
 func (a *AndroidLibrary) GenerateAndroidBuildActions(ctx android.ModuleContext) {
-	a.isLibrary = true
+	a.aapt.isLibrary = true
 	a.aapt.buildActions(ctx, sdkContext(a))
 
 	ctx.CheckbuildFile(a.proguardOptionsFile)
diff --git a/java/android_manifest.go b/java/android_manifest.go
index 36f24ff..6d4399d 100644
--- a/java/android_manifest.go
+++ b/java/android_manifest.go
@@ -15,12 +15,13 @@
 package java
 
 import (
-	"android/soong/java/config"
+	"fmt"
 	"strings"
 
 	"github.com/google/blueprint"
 
 	"android/soong/android"
+	"android/soong/java/config"
 )
 
 var manifestFixerRule = pctx.AndroidStaticRule("manifestFixer",
@@ -43,11 +44,22 @@
 	"libs")
 
 func manifestMerger(ctx android.ModuleContext, manifest android.Path, sdkContext sdkContext,
-	staticLibManifests android.Paths, isLibrary bool) android.Path {
+	staticLibManifests android.Paths, isLibrary bool, uncompressedJNI bool) android.Path {
 
 	var args []string
 	if isLibrary {
 		args = append(args, "--library")
+	} else {
+		minSdkVersion, err := sdkVersionToNumber(ctx, sdkContext.minSdkVersion())
+		if err != nil {
+			ctx.ModuleErrorf("invalid minSdkVersion: %s", err)
+		}
+		if minSdkVersion >= 23 {
+			args = append(args, fmt.Sprintf("--extract-native-libs=%v", !uncompressedJNI))
+		} else if uncompressedJNI {
+			ctx.ModuleErrorf("module attempted to store uncompressed native libraries, but minSdkVersion=%d doesn't support it",
+				minSdkVersion)
+		}
 	}
 
 	// Inject minSdkVersion into the manifest
diff --git a/java/app.go b/java/app.go
index 08714f2..47f4f0d 100644
--- a/java/app.go
+++ b/java/app.go
@@ -68,7 +68,11 @@
 	// list of native libraries that will be provided in or alongside the resulting jar
 	Jni_libs []string `android:"arch_variant"`
 
-	EmbedJNI bool `blueprint:"mutated"`
+	// Store native libraries uncompressed in the APK and set the android:extractNativeLibs="false" manifest
+	// flag so that they are used from inside the APK at runtime.  Defaults to true for android_test modules unless
+	// sdk_version or min_sdk_version is set to a version that doesn't support it (<23), defaults to false for other
+	// module types where the native libraries are generally preinstalled outside the APK.
+	Use_embedded_native_libs *bool
 }
 
 type AndroidApp struct {
@@ -136,9 +140,21 @@
 }
 
 func (a *AndroidApp) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	a.aapt.uncompressedJNI = a.shouldUncompressJNI(ctx)
 	a.generateAndroidBuildActions(ctx)
 }
 
+// shouldUncompressJNI returns true if the native libraries should be stored in the APK uncompressed and the
+// extractNativeLibs application flag should be set to false in the manifest.
+func (a *AndroidApp) shouldUncompressJNI(ctx android.ModuleContext) bool {
+	minSdkVersion, err := sdkVersionToNumber(ctx, a.minSdkVersion())
+	if err != nil {
+		ctx.PropertyErrorf("min_sdk_version", "invalid value %q: %s", a.minSdkVersion(), err)
+	}
+
+	return minSdkVersion >= 23 && Bool(a.appProperties.Use_embedded_native_libs)
+}
+
 // Returns whether this module should have the dex file stored uncompressed in the APK.
 func (a *AndroidApp) shouldUncompressDex(ctx android.ModuleContext) bool {
 	if ctx.Config().UnbundledBuild() {
@@ -230,10 +246,10 @@
 func (a *AndroidApp) jniBuildActions(jniLibs []jniLib, ctx android.ModuleContext) android.WritablePath {
 	var jniJarFile android.WritablePath
 	if len(jniLibs) > 0 {
-		embedJni := ctx.Config().UnbundledBuild() || a.appProperties.EmbedJNI
+		embedJni := ctx.Config().UnbundledBuild() || Bool(a.appProperties.Use_embedded_native_libs)
 		if embedJni {
 			jniJarFile = android.PathForModuleOut(ctx, "jnilibs.zip")
-			TransformJniLibsToJar(ctx, jniJarFile, jniLibs)
+			TransformJniLibsToJar(ctx, jniJarFile, jniLibs, a.shouldUncompressJNI(ctx))
 		} else {
 			a.installJniLibs = jniLibs
 		}
@@ -428,7 +444,7 @@
 
 	module.Module.properties.Instrument = true
 	module.Module.properties.Installable = proptools.BoolPtr(true)
-	module.appProperties.EmbedJNI = true
+	module.appProperties.Use_embedded_native_libs = proptools.BoolPtr(true)
 	module.Module.dexpreopter.isTest = true
 
 	module.AddProperties(
@@ -464,7 +480,7 @@
 	module.Module.deviceProperties.Optimize.Enabled = proptools.BoolPtr(true)
 
 	module.Module.properties.Installable = proptools.BoolPtr(true)
-	module.appProperties.EmbedJNI = true
+	module.appProperties.Use_embedded_native_libs = proptools.BoolPtr(true)
 	module.Module.dexpreopter.isTest = true
 
 	module.AddProperties(
diff --git a/java/app_builder.go b/java/app_builder.go
index 5b999d8..6cc2159 100644
--- a/java/app_builder.go
+++ b/java/app_builder.go
@@ -200,14 +200,14 @@
 }
 
 func TransformJniLibsToJar(ctx android.ModuleContext, outputFile android.WritablePath,
-	jniLibs []jniLib) {
+	jniLibs []jniLib, uncompressJNI bool) {
 
 	var deps android.Paths
 	jarArgs := []string{
 		"-j", // junk paths, they will be added back with -P arguments
 	}
 
-	if !ctx.Config().UnbundledBuild() {
+	if uncompressJNI {
 		jarArgs = append(jarArgs, "-L 0")
 	}
 
diff --git a/java/builder.go b/java/builder.go
index 7aac881..aa61a85 100644
--- a/java/builder.go
+++ b/java/builder.go
@@ -122,8 +122,8 @@
 
 	zipalign = pctx.AndroidStaticRule("zipalign",
 		blueprint.RuleParams{
-			Command: "if ! ${config.ZipAlign} -c 4 $in > /dev/null; then " +
-				"${config.ZipAlign} -f 4 $in $out; " +
+			Command: "if ! ${config.ZipAlign} -c -p 4 $in > /dev/null; then " +
+				"${config.ZipAlign} -f -p 4 $in $out; " +
 				"else " +
 				"cp -f $in $out; " +
 				"fi",