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Re: Two or three stages gcc build?


On Sep 6, 2013, at 5:58 AM, Thomas Petazzoni <thomas.petazzoni@free-electrons.com> wrote:

> Dear Khem Raj,
> 
> On Thu, 5 Sep 2013 10:31:46 -0700, Khem Raj wrote:
> 
>> I am late in reply but here it is.
> 
> No problem. Thanks for your reply.
> 
> 
>>> In fe9a576e8d27460468dfe5eac90aad49ab26a8d3 (gcc-cross-intermediate,
>>> gcc-crosssdk-intermediate: Remove) you completely remove the
>>> intermediate recipes, so I assume they are really no longer needed,
>>> even by the uClibc build, since I believe OE-core also supports uClibc
>>> builds (thanks to your work).
>> 
>> thats correct. See the code around where limits.h is installed by gcc initial
>> uclibc was less of an issue, glibc was more until last year when a lot of cleanup
>> was done especially where build time dependency on libgcc_s and libgcc_eh was averted
>> in cross gcc and buildroot you can do the same like i have done for OE I can help out
> 
> In the mean time, I've experimented a bit and actually implemented it.
> The patch hasn't been merged yet in Buildroot, but it has been posted:
> http://lists.busybox.net/pipermail/buildroot/2013-September/077344.html.
> 
> Don't hesitate to have a look and tell me what you think.

OK. The patch looks ok to me. one thing

Do you need to support multiple toolchains ? and how far do you want to go back ? I would much rather not
have THREE_STAGE_BUILD options at all.

Otherwise it looks good to me
> 
> Thanks!
> 
> Thomas
> -- 
> Thomas Petazzoni, Free Electrons
> Kernel, drivers, real-time and embedded Linux
> development, consulting, training and support.
> http://free-electrons.com


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