Parametrize zip alignment

Default to 16 for now, to see which tests (if any) fail

src/Xamarin.Android.Build.Tasks/Microsoft.Android.Sdk/targets/Microsoft.Android.Sdk.DefaultProperties.targets

@@ -45,6 +45,13 @@
 
     <!-- Mono components -->
     <AndroidEnableProfiler Condition=" '$(AndroidEnableProfiler)' == ''">false</AndroidEnableProfiler>
+
+    <!--
+        Android package (apt/aab) alignment, expressed as the page size in kilobytes.  Two values are supported: 4 and 16.
+        Sometime next year the default value should be changed to 16 since it's going to be a Google Play store requirement for
+        application submissions
+    -->
+    <_AndroidZipAlignment Condition=" '$(_AndroidZipAlignment)' == '' ">16</_AndroidZipAlignment>
   </PropertyGroup>
 
   <!--  User-facing configuration-specific defaults -->

src/Xamarin.Android.Build.Tasks/Tasks/AndroidZipAlign.cs

@@ -7,6 +7,10 @@ namespace Xamarin.Android.Tasks
 {
 	public class AndroidZipAlign : AndroidRunToolTask
 	{
+		// Sometime next year the default value should be changed to 16 since it's going to be a Google Play store requirement for
+		// application submissions
+		internal const int DefaultZipAlignment = 4;
+
 		public override string TaskPrefix => "AZA";
 
 		[Required]
@@ -15,7 +19,7 @@ public class AndroidZipAlign : AndroidRunToolTask
 		[Required]
 		public ITaskItem DestinationDirectory { get; set; }
 
-		int alignment = 4;
+		int alignment = DefaultZipAlignment;
 		public int Alignment {
 			get {return alignment;}
 			set {alignment = value;}
@@ -53,4 +57,3 @@ protected override void LogEventsFromTextOutput (string singleLine, MessageImpor
 		}
 	}
 }
-

src/Xamarin.Android.Build.Tasks/Tasks/GeneratePackageManagerJava.cs

@@ -80,6 +80,7 @@ public class GeneratePackageManagerJava : AndroidTask
 		public string AndroidSequencePointsMode { get; set; }
 		public bool EnableSGenConcurrent { get; set; }
 		public string? CustomBundleConfigFile { get; set; }
+		public int ZipAlignmentPages { get; set; } = 0;
 
 		[Output]
 		public string BuildId { get; set; }
@@ -334,6 +335,13 @@ void AddEnvironment ()
 
 			bool haveRuntimeConfigBlob = !String.IsNullOrEmpty (RuntimeConfigBinFilePath) && File.Exists (RuntimeConfigBinFilePath);
 			var jniRemappingNativeCodeInfo = BuildEngine4.GetRegisteredTaskObjectAssemblyLocal<GenerateJniRemappingNativeCode.JniRemappingNativeCodeInfo> (ProjectSpecificTaskObjectKey (GenerateJniRemappingNativeCode.JniRemappingNativeCodeInfoKey), RegisteredTaskObjectLifetime.Build);
+			int zipAlignment = ZipAlignmentPages != 0 ? ZipAlignmentPages : AndroidZipAlign.DefaultZipAlignment;
+			uint zipAlignmentMask = zipAlignment switch {
+				4 => 3,
+				16 => 15,
+				_ => throw new InvalidOperationException ($"Internal error: unsupported zip page alignment value {ZipAlignmentPages}")
+			};
+
 			var appConfigAsmGen = new ApplicationConfigNativeAssemblyGenerator (environmentVariables, systemProperties, Log) {
 				UsesMonoAOT = usesMonoAOT,
 				UsesMonoLLVM = EnableLLVM,
@@ -357,7 +365,7 @@ void AddEnvironment ()
 				JNIEnvRegisterJniNativesToken = jnienv_registerjninatives_method_token,
 				JniRemappingReplacementTypeCount = jniRemappingNativeCodeInfo == null ? 0 : jniRemappingNativeCodeInfo.ReplacementTypeCount,
 				JniRemappingReplacementMethodIndexEntryCount = jniRemappingNativeCodeInfo == null ? 0 : jniRemappingNativeCodeInfo.ReplacementMethodIndexEntryCount,
-				ZipAlignmentMask = 3, // TODO: parametrize via Task arguments
+				ZipAlignmentMask = zipAlignmentMask,
 				MarshalMethodsEnabled = EnableMarshalMethods,
 				IgnoreSplitConfigs = ShouldIgnoreSplitConfigs (),
 			};

src/Xamarin.Android.Build.Tasks/Xamarin.Android.Common.targets

@@ -1724,6 +1724,7 @@ because xbuild doesn't support framework reference assemblies.
     UseAssemblyStore="$(AndroidUseAssemblyStore)"
     EnableMarshalMethods="$(_AndroidUseMarshalMethods)"
     CustomBundleConfigFile="$(AndroidBundleConfigurationFile)"
+    ZipAlignmentPages="$(_AndroidZipAlignment)"
   >
     <Output TaskParameter="BuildId" PropertyName="_XamarinBuildId" />
   </GeneratePackageManagerJava>
@@ -2354,7 +2355,8 @@ because xbuild doesn't support framework reference assemblies.
 	<Delete Files="%(ApkAbiFilesSigned.FullPath)" Condition=" '$(AndroidUseApkSigner)' == 'true' "/>
 	<AndroidZipAlign Condition=" '$(AndroidUseApkSigner)' == 'true' "
 		Source="%(ApkAbiFilesIntermediate.Identity)"
-		DestinationDirectory="$(OutDir)"
+    Alignment="$(_AndroidZipAlignment)"
+    DestinationDirectory="$(OutDir)"
 		ToolPath="$(ZipAlignToolPath)"
 		ToolExe="$(ZipalignToolExe)"
 	/>
@@ -2389,7 +2391,8 @@ because xbuild doesn't support framework reference assemblies.
 	<Message Text="Unaligned android package '%(ApkAbiFilesUnaligned.FullPath)'"  Condition=" '$(AndroidUseApkSigner)' != 'True' And '$(AndroidPackageFormat)' != 'aab' "/>
 	<AndroidZipAlign Condition=" '$(AndroidUseApkSigner)' != 'True' And '$(AndroidPackageFormat)' != 'aab' "
 		Source="%(ApkAbiFilesUnaligned.Identity)"
-		DestinationDirectory="$(OutDir)"
+    Alignment="$(_AndroidZipAlignment)"
+    DestinationDirectory="$(OutDir)"
 		ToolPath="$(ZipAlignToolPath)"
 		ToolExe="$(ZipalignToolExe)"
 	/>

src/native/xamarin-app-stub/application_dso_stub.cc

@@ -66,7 +66,7 @@ const ApplicationConfig application_config = {
 	.jnienv_registerjninatives_method_token = 3,
 	.jni_remapping_replacement_type_count = 2,
 	.jni_remapping_replacement_method_index_entry_count = 2,
-	.zip_alignment_mask = 4,
+	.zip_alignment_mask = 3,
 	.mono_components_mask = MonoComponent::None,
 	.android_package_name = android_package_name,
 };