[yocto] Build toolchain only (crosstools substitute?)

[Michael Habibi]

If I needed to modify glibc or gcc build options (hypothetically speaking,
to turn on profiling or debug), I assume I can do that with bbappends and
the like?

Thanks Paul

On Mon, May 2, 2016 at 11:51 PM, Paul Eggleton <
paul.eggleton at linux.intel.com> wrote:

> Hi Michael,
>
> On Mon, 02 May 2016 16:38:16 Michael Habibi wrote:
> > I have been a few months out of researching Yocto, so I'm having trouble
> > caching it all back in (a lot to absorb!). Excuse me if this is answered
> > clearly in the documentation (I glanced around and I know you can build
> > relocatable toolchains, etc, but I suppose I'm asking more of a
> > philosophical question).
> >
> > I have long-term plans to change our distribution at work over from a
> > custom distribution to one built by Yocto - but this is a few months to a
> > year out.
> >
> > In the mean time, we need a new toolchain simply to update our glibc and
> > gcc packages. I understand that yocto 2.1 can build gcc 5.3 w/ glibc 2.23
> > support. I was wondering if this would be considered an appropriate
> > exercise to use the yocto framework to build solely a toolchain to be
> used
> > with a custom distribution (understanding that the custom distribution
> > would have to be modified to source and use the new toolchain).
> >
> > We typically use crosstools to generate the toolchain, but it is a bit
> > outdated and only builds gcc 5.2 (which has some bugs that were fixed in
> > 5.3). Essentially I want to use Yocto recipes as a substitute for
> > crosstools-ng.
>
> If you build (or download) our SDK that should give you what you need:
>
>
> http://www.yoctoproject.org/docs/2.1/sdk-manual/sdk-manual.html#sdk-building-an-sdk-installer
>
> If it's just the toolchain you need you can ignore the bits about
> the extensible SDK - the standard SDK is what you want. There's
> some more explanatory stuff towards the top of that manual as well.
>
> Cheers,
> Paul
>
> --
>
> Paul Eggleton
> Intel Open Source Technology Centre
>
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