GSoC 2015 - Clang support and Eclipse plugin work

[Gedare Bloom]

On Tue, Mar 24, 2015 at 10:52 AM, Charith Eranga
<eranga.charith at gmail.com> wrote:
> Hi All,
>
> I'm Charith Eranga from University of Moratuwa, Sri Lanka. I'm
> currently a second year student specializing in embedded software
> development.
>
> I'm particularly interested in compiling RTEMS with Clang [1] and the
> improvements to the Eclipse plugin [2]. I've made a start with RTEMS
> by compiling toolchain/rtems following the GSoC guide [3].
>
> 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.

> 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 [1].

I think it makes the most sense to work from the waf branch and try to
help push it forward.

> 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.

> 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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