[illink] Do not preserve IO stream adapter/invoker #5449
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Context: dotnet#5206 Context: dotnet#5167 They are only accessed through `CallbackCode` class in M.A.Export with reflection code, which ILLink is able to detect. This change reduces the apk size in common situation, when M.A.Export is not used. apk size comparison, BuildReleaseArm64False test: > apkdiff -f -e dll$ before.apk after.apk Size difference in bytes ([*1] apk1 only, [*2] apk2 only): - 80 assemblies/System.Console.dll - 129 assemblies/Java.Interop.dll - 1,237 assemblies/System.Private.CoreLib.dll - 6,093 assemblies/Mono.Android.dll Summary: - 7,539 Assemblies -1.01% (of 749,078)
jonathanpeppers
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Jan 27, 2022
…asses Fixes: dotnet/maui#2246 Fixes: dotnet/maui#4262 Fixes: https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1447865 Revert "[One .NET] Do not preserve IO stream adapter/invoker (dotnet#5449)" This reverts commit 051cad7. `dotnet new maui-blazor` crashes in Release mode with: Android.Runtime.JavaProxyThrowable: Exception_WasThrown, Android.Runtime.JavaProxyThrowable --- End of managed Android.Runtime.JavaProxyThrowable stack trace --- android.runtime.JavaProxyThrowable: System.ArgumentException: Arg_DlgtTargMeth at System.Delegate.CreateDelegate(Type , Type , String , Boolean , Boolean ) at System.Delegate.CreateDelegate(Type , Type , String ) at Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType , Type , String ) --- End of stack trace from previous location --- at Java.Interop.JniEnvironment.StaticMethods.CallStaticObjectMethod(JniObjectReference , JniMethodInfo , JniArgumentValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue[] ) at Android.Runtime.JNIEnv.FindClass(String ) at Android.Runtime.JNIEnv.AllocObject(String ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue* ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue[] ) at Android.Runtime.InputStreamAdapter..ctor(Stream ) at Android.Runtime.InputStreamAdapter.ToLocalJniHandle(Stream ) at Android.Webkit.WebResourceResponse..ctor(String , String , Int32 , String , IDictionary`2 , Stream ) at Microsoft.AspNetCore.Components.WebView.Maui.WebKitWebViewClient.ShouldInterceptRequest(WebView view, IWebResourceRequest request) at Android.Webkit.WebViewClient.n_ShouldInterceptRequest_Landroid_webkit_WebView_Landroid_webkit_WebResourceRequest_(IntPtr , IntPtr , IntPtr , IntPtr ) at crc64d693e2d9159537db.WebKitWebViewClient.n_shouldInterceptRequest(Native Method) at crc64d693e2d9159537db.WebKitWebViewClient.shouldInterceptRequest(WebKitWebViewClient.java:39) at Rr.a(chromium-TrichromeWebViewGoogle.apk-stable-410410686:16) at org.chromium.android_webview.AwContentsBackgroundThreadClient.shouldInterceptRequestFromNative(chromium-TrichromeWebViewGoogle.apk-stable-410410686:2) --- End of managed Android.Runtime.JavaProxyThrowable stack trace --- android.runtime.JavaProxyThrowable: System.ArgumentException: Arg_DlgtTargMeth at System.Delegate.CreateDelegate(Type , Type , String , Boolean , Boolean ) at System.Delegate.CreateDelegate(Type , Type , String ) at Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType , Type , String ) --- End of stack trace from previous location --- at Java.Interop.JniEnvironment.StaticMethods.CallStaticObjectMethod(JniObjectReference , JniMethodInfo , JniArgumentValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue[] ) at Android.Runtime.JNIEnv.FindClass(String ) at Android.Runtime.JNIEnv.AllocObject(String ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue* ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue[] ) at Android.Runtime.InputStreamAdapter..ctor(Stream ) at Android.Runtime.InputStreamAdapter.ToLocalJniHandle(Stream ) at Android.Webkit.WebResourceResponse..ctor(String , String , Int32 , String , IDictionary`2 , Stream ) at Microsoft.AspNetCore.Components.WebView.Maui.WebKitWebViewClient.ShouldInterceptRequest(WebView view, IWebResourceRequest request) at Android.Webkit.WebViewClient.n_ShouldInterceptRequest_Landroid_webkit_WebView_Landroid_webkit_WebResourceRequest_(IntPtr , IntPtr , IntPtr , IntPtr ) at crc64d693e2d9159537db.WebKitWebViewClient.n_shouldInterceptRequest(Native Method) at crc64d693e2d9159537db.WebKitWebViewClient.shouldInterceptRequest(WebKitWebViewClient.java:39) at Rr.a(chromium-TrichromeWebViewGoogle.apk-stable-410410686:16) at org.chromium.android_webview.AwContentsBackgroundThreadClient.shouldInterceptRequestFromNative(chromium-TrichromeWebViewGoogle.apk-stable-410410686:2) It turns out that `Java.IO.InputStream.GetReadHandler()` was linked away. So we need to preserve: <linker> <assembly fullname="Mono.Android"> <type fullname="Android.Runtime.InputStreamAdapter" preserve="methods" /> <type fullname="Android.Runtime.InputStreamInvoker" preserve="methods" /> Long-term, we should consider reworking `mono.android.jar`, so that the linker *knows* about any C# methods called from Java from this library. This regresses apk size a reasonable amount: --"PackageSize": 2680724 ++"PackageSize": 2697108 Adding ~16kb. I considered adding: <type fullname="Android.Runtime.XmlResourceParserReader" /> <type fullname="Android.Runtime.XmlPullParserReader" /> <type fullname="Android.Runtime.XmlReaderResourceParser" /> <type fullname="Android.Runtime.XmlReaderPullParser" /> But this regressed app size by too much! 1,141,062 Package size difference 42.57% (of 2,680,724)
jonpryor
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Jan 28, 2022
…asses (#6675) Fixes: dotnet/maui#2246 Fixes: dotnet/maui#4262 Fixes: https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1447865 Context: b7a368a Revert "[One .NET] Do not preserve IO stream adapter/invoker (#5449)" This reverts commit 051cad7. If you run the `maui-blazor` template in a Release build: dotnet build -t:Run -c Release it crashes at runtime: Android.Runtime.JavaProxyThrowable: Exception_WasThrown, Android.Runtime.JavaProxyThrowable --- End of managed Android.Runtime.JavaProxyThrowable stack trace --- android.runtime.JavaProxyThrowable: System.ArgumentException: Arg_DlgtTargMeth at System.Delegate.CreateDelegate(Type , Type , String , Boolean , Boolean ) at System.Delegate.CreateDelegate(Type , Type , String ) at Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType , Type , String ) --- End of stack trace from previous location --- at Java.Interop.JniEnvironment.StaticMethods.CallStaticObjectMethod(JniObjectReference , JniMethodInfo , JniArgumentValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue[] ) at Android.Runtime.JNIEnv.FindClass(String ) at Android.Runtime.JNIEnv.AllocObject(String ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue* ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue[] ) at Android.Runtime.InputStreamAdapter..ctor(Stream ) at Android.Runtime.InputStreamAdapter.ToLocalJniHandle(Stream ) at Android.Webkit.WebResourceResponse..ctor(String , String , Int32 , String , IDictionary`2 , Stream ) at Microsoft.AspNetCore.Components.WebView.Maui.WebKitWebViewClient.ShouldInterceptRequest(WebView view, IWebResourceRequest request) at Android.Webkit.WebViewClient.n_ShouldInterceptRequest_Landroid_webkit_WebView_Landroid_webkit_WebResourceRequest_(IntPtr , IntPtr , IntPtr , IntPtr ) at crc64d693e2d9159537db.WebKitWebViewClient.n_shouldInterceptRequest(Native Method) at crc64d693e2d9159537db.WebKitWebViewClient.shouldInterceptRequest(WebKitWebViewClient.java:39) at Rr.a(chromium-TrichromeWebViewGoogle.apk-stable-410410686:16) at org.chromium.android_webview.AwContentsBackgroundThreadClient.shouldInterceptRequestFromNative(chromium-TrichromeWebViewGoogle.apk-stable-410410686:2) --- End of managed Android.Runtime.JavaProxyThrowable stack trace --- android.runtime.JavaProxyThrowable: System.ArgumentException: Arg_DlgtTargMeth at System.Delegate.CreateDelegate(Type , Type , String , Boolean , Boolean ) at System.Delegate.CreateDelegate(Type , Type , String ) at Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType , Type , String ) --- End of stack trace from previous location --- at Java.Interop.JniEnvironment.StaticMethods.CallStaticObjectMethod(JniObjectReference , JniMethodInfo , JniArgumentValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue[] ) at Android.Runtime.JNIEnv.FindClass(String ) at Android.Runtime.JNIEnv.AllocObject(String ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue* ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue[] ) at Android.Runtime.InputStreamAdapter..ctor(Stream ) at Android.Runtime.InputStreamAdapter.ToLocalJniHandle(Stream ) at Android.Webkit.WebResourceResponse..ctor(String , String , Int32 , String , IDictionary`2 , Stream ) at Microsoft.AspNetCore.Components.WebView.Maui.WebKitWebViewClient.ShouldInterceptRequest(WebView view, IWebResourceRequest request) at Android.Webkit.WebViewClient.n_ShouldInterceptRequest_Landroid_webkit_WebView_Landroid_webkit_WebResourceRequest_(IntPtr , IntPtr , IntPtr , IntPtr ) at crc64d693e2d9159537db.WebKitWebViewClient.n_shouldInterceptRequest(Native Method) at crc64d693e2d9159537db.WebKitWebViewClient.shouldInterceptRequest(WebKitWebViewClient.java:39) at Rr.a(chromium-TrichromeWebViewGoogle.apk-stable-410410686:16) at org.chromium.android_webview.AwContentsBackgroundThreadClient.shouldInterceptRequestFromNative(chromium-TrichromeWebViewGoogle.apk-stable-410410686:2) It turns out that `Java.IO.InputStream.GetReadHandler()` was linked away. So we need to preserve: <linker> <assembly fullname="Mono.Android"> <type fullname="Android.Runtime.InputStreamAdapter" preserve="methods" /> <type fullname="Android.Runtime.InputStreamInvoker" preserve="methods" /> Long-term, we should consider reworking `mono.android.jar`, so that the linker *knows* about any C# methods called from Java from this library, or *drop* `mono.android.jar` & `mono.android.dex` and treat `Mono.Android.dll` as a "normal user assembly"… This regresses `.apk` size by ~16KB: --"PackageSize": 2680724 ++"PackageSize": 2697108 I considered adding: <type fullname="Android.Runtime.XmlResourceParserReader" /> <type fullname="Android.Runtime.XmlPullParserReader" /> <type fullname="Android.Runtime.XmlReaderResourceParser" /> <type fullname="Android.Runtime.XmlReaderPullParser" /> But this regressed app size by too much! 1,141,062 Package size difference 42.57% (of 2,680,724)
jonathanpeppers
added a commit
that referenced
this pull request
Jan 28, 2022
…asses (#6675) Fixes: dotnet/maui#2246 Fixes: dotnet/maui#4262 Fixes: https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1447865 Context: b7a368a Revert "[One .NET] Do not preserve IO stream adapter/invoker (#5449)" This reverts commit 051cad7. If you run the `maui-blazor` template in a Release build: dotnet build -t:Run -c Release it crashes at runtime: Android.Runtime.JavaProxyThrowable: Exception_WasThrown, Android.Runtime.JavaProxyThrowable --- End of managed Android.Runtime.JavaProxyThrowable stack trace --- android.runtime.JavaProxyThrowable: System.ArgumentException: Arg_DlgtTargMeth at System.Delegate.CreateDelegate(Type , Type , String , Boolean , Boolean ) at System.Delegate.CreateDelegate(Type , Type , String ) at Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType , Type , String ) --- End of stack trace from previous location --- at Java.Interop.JniEnvironment.StaticMethods.CallStaticObjectMethod(JniObjectReference , JniMethodInfo , JniArgumentValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue[] ) at Android.Runtime.JNIEnv.FindClass(String ) at Android.Runtime.JNIEnv.AllocObject(String ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue* ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue[] ) at Android.Runtime.InputStreamAdapter..ctor(Stream ) at Android.Runtime.InputStreamAdapter.ToLocalJniHandle(Stream ) at Android.Webkit.WebResourceResponse..ctor(String , String , Int32 , String , IDictionary`2 , Stream ) at Microsoft.AspNetCore.Components.WebView.Maui.WebKitWebViewClient.ShouldInterceptRequest(WebView view, IWebResourceRequest request) at Android.Webkit.WebViewClient.n_ShouldInterceptRequest_Landroid_webkit_WebView_Landroid_webkit_WebResourceRequest_(IntPtr , IntPtr , IntPtr , IntPtr ) at crc64d693e2d9159537db.WebKitWebViewClient.n_shouldInterceptRequest(Native Method) at crc64d693e2d9159537db.WebKitWebViewClient.shouldInterceptRequest(WebKitWebViewClient.java:39) at Rr.a(chromium-TrichromeWebViewGoogle.apk-stable-410410686:16) at org.chromium.android_webview.AwContentsBackgroundThreadClient.shouldInterceptRequestFromNative(chromium-TrichromeWebViewGoogle.apk-stable-410410686:2) --- End of managed Android.Runtime.JavaProxyThrowable stack trace --- android.runtime.JavaProxyThrowable: System.ArgumentException: Arg_DlgtTargMeth at System.Delegate.CreateDelegate(Type , Type , String , Boolean , Boolean ) at System.Delegate.CreateDelegate(Type , Type , String ) at Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType , Type , String ) --- End of stack trace from previous location --- at Java.Interop.JniEnvironment.StaticMethods.CallStaticObjectMethod(JniObjectReference , JniMethodInfo , JniArgumentValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue* ) at Android.Runtime.JNIEnv.CallStaticObjectMethod(IntPtr , IntPtr , JValue[] ) at Android.Runtime.JNIEnv.FindClass(String ) at Android.Runtime.JNIEnv.AllocObject(String ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue* ) at Android.Runtime.JNIEnv.StartCreateInstance(String , String , JValue[] ) at Android.Runtime.InputStreamAdapter..ctor(Stream ) at Android.Runtime.InputStreamAdapter.ToLocalJniHandle(Stream ) at Android.Webkit.WebResourceResponse..ctor(String , String , Int32 , String , IDictionary`2 , Stream ) at Microsoft.AspNetCore.Components.WebView.Maui.WebKitWebViewClient.ShouldInterceptRequest(WebView view, IWebResourceRequest request) at Android.Webkit.WebViewClient.n_ShouldInterceptRequest_Landroid_webkit_WebView_Landroid_webkit_WebResourceRequest_(IntPtr , IntPtr , IntPtr , IntPtr ) at crc64d693e2d9159537db.WebKitWebViewClient.n_shouldInterceptRequest(Native Method) at crc64d693e2d9159537db.WebKitWebViewClient.shouldInterceptRequest(WebKitWebViewClient.java:39) at Rr.a(chromium-TrichromeWebViewGoogle.apk-stable-410410686:16) at org.chromium.android_webview.AwContentsBackgroundThreadClient.shouldInterceptRequestFromNative(chromium-TrichromeWebViewGoogle.apk-stable-410410686:2) It turns out that `Java.IO.InputStream.GetReadHandler()` was linked away. So we need to preserve: <linker> <assembly fullname="Mono.Android"> <type fullname="Android.Runtime.InputStreamAdapter" preserve="methods" /> <type fullname="Android.Runtime.InputStreamInvoker" preserve="methods" /> Long-term, we should consider reworking `mono.android.jar`, so that the linker *knows* about any C# methods called from Java from this library, or *drop* `mono.android.jar` & `mono.android.dex` and treat `Mono.Android.dll` as a "normal user assembly"… This regresses `.apk` size by ~16KB: --"PackageSize": 2680724 ++"PackageSize": 2697108 I considered adding: <type fullname="Android.Runtime.XmlResourceParserReader" /> <type fullname="Android.Runtime.XmlPullParserReader" /> <type fullname="Android.Runtime.XmlReaderResourceParser" /> <type fullname="Android.Runtime.XmlReaderPullParser" /> But this regressed app size by too much! 1,141,062 Package size difference 42.57% (of 2,680,724)
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Context: #5206
Context: #5167
They are only accessed through
CallbackCodeclass in M.A.Export withreflection code, which ILLink is able to detect.
This change reduces the apk size in common situation, when M.A.Export is
not used.
apk size comparison, BuildReleaseArm64False test: