Has anyone tried to port Mono to RTEMS

[xuelin.tian at qkmtech.com]

Dear Joel,
Recently, I continue to port Mono to RTEMS.
Porting consists of two parts, according to the Mono documents online, JIT engine and OS support.
JIT part is already done, since I use ARM platform. 
And I am confuesd about OS part and how to build Mono on RTEMS.
Could you recall any details about how to build Mono on RTEMS? Thank you. 



Best wishes,
xuelin.tian at qkmtech.com
 
From: Joel Sherrill
Date: 2017-05-24 20:19
To: xuelin.tian
CC: rtems-users at rtems.org
Subject: Re: Has anyone tried to port Mono to RTEMS


On May 23, 2017 8:58 PM, "xuelin.tian at qkmtech.com" <xuelin.tian at qkmtech.com> wrote:
Dear all,
Is that possible to port Mono to RTEMS? Has anyone tried this before? 
As I notice that there is an open project in RTEMS projects. 

Sometime ago, I was asked to provide an estimate for this. It had to be between five and ten years ago because we were at the old office but after we had done a few years of GSoC. I did enough work preparing the estimate where I had the code building without too much effort. I saw the challenge as getting the test suite running since you would have to create a test harness and build/assembly helper that packaged the interpreted code with the interpreter in order to run it. At that time, I envisioned having to create a base image and a filesystem image per test.

Our POSIX was good enough then to avoid much trouble. It should only be easier now since the POSIX support has improved.

There were a lot of Mono tests and I expected most to pass quickly. But there was no way to know how many issues would be encountered and how many root causes there would be. I expected to fix one or two things and then run all the tests. That was where I expected time to be consumed.

FWIW I recall the GSoC date part because they thought we could magically get students to do testing for free on a schedule. :)

I hope that helps. It is feasible but the key is testing.

--joel




Best wishes,
xuelin.tian at qkmtech.com

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