Date: Tue, 2 Jun 2009 15:30:36 -0700 (PDT) From: Vassilis Laganakos <vassilis.laganakos@yahoo.com> To: Sam Leffler <sam@freebsd.org> Cc: freebsd-arm@freebsd.org Subject: Re: ARMv7 - EABI - Cross Compiler Message-ID: <180520.87347.qm@web59402.mail.ac4.yahoo.com>
next in thread | raw e-mail | index | archive | help
Hello Sam,
----- Original Message ----
> From: Sam Leffler <sam@freebsd.org>
> To: Vassilis Laganakos <vassilis.laganakos@yahoo.com>
> Cc: freebsd-arm@freebsd.org
> Sent: Tuesday, June 2, 2009 5:39:36 PM
> Subject: Re: ARMv7 - EABI - Cross Compiler
>
> Vassilis Laganakos wrote:
> > Hello,
> >
> > I recently started working on getting a later version of GCC as a
> cross-compiler for FreeBSD.
> > The main reason is that I'm interested in having support for the "new" ARM
> EABI that will give the benefits of ARMv5TE onwards, to all the boards that use
> it (Mistral EVM, BeagleBoard, etc)
> >
> > I've built gcc 4.4.1 (rev 147925) and binutils (2.19.51.20090527), using the
> 7-STABLE headers where appropriate. I'm now trying to built libc from the same
> branch. I'm trying to pull out libc from the building tree, and
> > build it with the above toolchain so that it will be available to use it with
> that (once done, I'll commit a port for this); at the same time I'm try to drop
> the GCC 4.4.1 in the build tree to be able to use it for building the world.
> >
> > Please let me know whether I'm going down the wrong path or not :o) Tips and
> advice pointers towards
> > the right direction would be more than helpful!
> >
> > I don't know if someone else is working on something similar, but if the
> answer is "yes" I would be quite happy to be of help. If not, any kind of help
> would be most appreciated :o)
> >
> >
>
> Your basic approach sounds fine.
>
Thanks for confirming the sanity of the approach. It's good to know that I'm walking
the right path. :o)
> I believe you will find many small changes to
> base code required by the later version of gcc (depending on compile options).
>
Ok, I'll log everything down.
> If you work with HEAD instead of RELENG_7 then these changes can likely be
> merged and will simplify your effort in the future.
>
Great. Although I want to track RELENG-7 for my box, until RELENG-8 moves to
stable :o) Would I have to use the latest binutils too, or these are already there
in HEAD?
> Ideally you should be able
> to install the gcc port, pull freebsd code, and then use the xdev build
> mechanism to cross-build w/ the toolchain.
>
Thanks for the outline. Do you mean an existing gcc port, or the port I'm trying to pull
together? Haven't used xdev before, I just build stuff by defining TARGET
and TARGET_ARCH.
I'll look more into this and I'll get back with more results and almost certainly more
questions! :o)
Many thanks,
Vassilis L.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?180520.87347.qm>