GSoC 2015 - Clang support and Eclipse plugin work

[Asiri Rathnayake]

Hi Charith,

I see you were unable to submit a proposal. Do you plan to work on this
still? :)

Best,

- Asiri

On Tue, Mar 24, 2015 at 9:12 PM, Asiri Rathnayake <
asiri.rathnayake at gmail.com> wrote:

> Hi Gedare, Joel,
>
> >> For clang support, I've made start by following the steps of [1]. I
>> >> also have an industry contact (llvm/clang committer) who's willing to
>> >> help me on that side of things. One question I have about this is, how
>> > It would be most helpful if your contact would be willing to sign-up
>> > in Google Melange as a mentor for RTEMS Project. Please have him/her
>> > contact me directly for any clarifications.
>> +1
>>
>
> I've sent a request on Melange. I'm mostly familiar with the llvm backend
> work, but I think I know (or can find out) enough about Clang to help
> Charith with his work (if he gets selected, of course).
>
> Cheers,
>
> - Asiri
>
>
>> >> do we define a success measure for this project? I mean, RTEMS seem to
>> >> already compile with Clang with some local patches [1], but how do we
>> > Somewhat true, but I believe there are problems with using clang that
>> > have to do with the pervasive use of gcc spec files. A pre-requisite
>> > task may be to get the spec files completely eliminated, which there
>> > is an ongoing effort to do with the "waf branch" of RTEMS [1ing tghe].
>> I am suspicious that most of what is in the specs files is obsolete and
>> already
>> taken into account inside gcc by our rtems specific tweaks.  GCC spec way
>> extension is a way to accomplish things that can be done inside GCC but
>> without modifying GCC source.  The specs use predates us having many
>> gcc tweaks.
>>
>> The short version is that a careful review may significantly reduce them.
>>
>> Also I have long had the idea that adding an option for an rtems bsp
>> to gcc and clang could eliminate some needs also. The -B option is
>> mostly to set an include and lib path to get the BSP.
>>
>> Random core dump of thoughts of unsure value.
>> > I think it makes the most sense to work from the waf branch and try to
>> > help push it forward.
>> +1
>> >> evaluate whether the resulting binary is in good shape? should I also
>> >> be thinking of some test-plan as part of the project? Secondly, will
>> > RTEMS has an extensive test-suite [2], and you should be prepared to
>> > run it before/after. We have a tool that helps with automation [3].
>> >
>> >> it be OK if I fork off clang in github and maintain the patches there?
>> >>
>> > Yes, we prefer for gsoc development to be done on github.
>> >
>> >> I haven't yet tried out the RTEMS Eclipse plugin (on my TODO list),
>> >> but I have an interest in learning Eclipse plugin development. I
>> >> suppose the objectives of this project would be implement as much as
>> >> possible in the TODO list of [2]?
>> >>
>> > Yes, but some of those may be obsolete. Perhaps users will chime in
>> > about what they would like to see in it.
>> Agreed. And suggesting Eclipse capabilities that are useful is welcomed.
>> >> Many thanks for your comments.
>> >>
>> >> - Charith
>> >>
>> >> PS: "Hello World" exercise attached herewith.
>> > Confirmed, thanks. Feel free to add yourself to the "Tracking Table"
>> for 2015.
>> >
>> > [1] https://git.rtems.org/amar/waf.git/
>> > [2] https://git.rtems.org/rtems/tree/testsuites
>> > [3] https://git.rtems.org/rtems-tools/tree/tester
>> >
>> > Gedare
>> >
>> >> [1] https://devel.rtems.org/wiki/Projects/CLANG
>> >> [2] https://devel.rtems.org/wiki/Developer/Eclipse/Information
>> >> [3] https://devel.rtems.org/wiki/GSoC/GettingStarted
>> >>
>> >> _______________________________________________
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>> >> devel at rtems.org
>> >> http://lists.rtems.org/mailman/listinfo/devel
>> > _______________________________________________
>> > devel mailing list
>> > devel at rtems.org
>> > http://lists.rtems.org/mailman/listinfo/devel
>>
>> --
>> Joel Sherrill, Ph.D.             Director of Research & Development
>> joel.sherrill at OARcorp.com        On-Line Applications Research
>> Ask me about RTEMS: a free RTOS  Huntsville AL 35805
>> Support Available                (256) 722-9985
>>
>>
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>>
>
>
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