[Mono-dev] AOT Mono.WebBrowser.dll under ARM Embedded Linux environment problem

Daniel M chookieeee at hotmail.com
Tue Jan 18 16:41:27 EST 2011

Hi Rodrigo,Thanks for your reply.Its more of a test for the moment... we are having speed issues with System.Windows.Forms loading taking so long.eg. A simple .exe with a form + 1 button took 12 secs to load. Running with --profile=default:jit gave the following info:Total time spent compiling 2970 methods (sec): 12.6Slowest method to compile (sec): 0.4277: System.Windows.Forms.ProfessionalColorTable::CalculateColors()Total number of calls: 0Allocation profilerTotal memory allocated: 0 KBObjects copied: 0Processor is ARM9 at 400mhz with 128mb ram (with mono using GTK#).Trying to see if I can speed this up a bit by using AOT compilation. Any thoughts?Thanks,Dan 

Date: Tue, 18 Jan 2011 13:42:43 +0100
Subject: Re: [Mono-dev] AOT Mono.WebBrowser.dll under ARM Embedded Linux environment problem
From: kumpera at gmail.com
To: chookieeee at hotmail.com
CC: mono-devel-list at lists.ximian.com

Do you really need full aot on your target? It should be avoided when possible since a lot of stuff doesn't work under it.

On Tue, Jan 18, 2011 at 1:17 PM, Daniel M <chookieeee at hotmail.com> wrote:

Hi All,
Wondering if it is possible to AOT just a section of the Mono framework (and ignore parts of the framework i will not use???).
I have mono 2.8 release cross compiled for ARM platform. Attempting to do AOT compilation. Binaries seem to compile fine until I hit the Mono.WebBrowser binary. I get the following two messages on my output repeatedly:

Invoking method 'System.Runtime.InteropServices.InterfaceTypeAttribute:.ctor (System.Runtime.InteropServices.ComInterfaceType)' when running in no-exec mode.

Invoking method 'System.Runtime.InteropServices.GuidAttribute:.ctor (string)' when running in no-exec mode.

I neither have mozilla, gecko, nor webkit on my embedded system, so im assuming the errors are relating to this?? I will never use this DLL, wont need it, so is there a way i can skip it?

When i run my simple windows forms test app:
mono --full-aot testapp.exe
I get the error:
Can't use AOT image '/usr/lib/mono/gac/Mono.WebBrowser/' in aot-only mode because it is not compiled with --aot=full.

Any help here would be greatly appreciated.


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