Re: Blackfin, uClibc-ng, and fdpic

[Bryan Hundven <bryanhundven at gmail dot com>]

Hello,

On Thu, Oct 29, 2015 at 1:43 PM, Bryan Hundven <bryanhundven@gmail.com> wrote:
> Reinoud,
>
> On Thu, Oct 29, 2015 at 1:34 PM, Reinoud Koornstra
> <reinoudkoornstra@gmail.com> wrote:
>> Hi Bryan,
>>
>> I suspected so.
>> At home I was able to build uclibc-ng with gcc 5.1.0 I believe, let me
>> check for the config.
>> It was 1.5 or 2 months ago that I tried, that, but it might depend on
>> the options you select for uclibc-ng.
>> Thanks for trying.
>> Let me get back to you tonight.
>
> You can reproduce what I have by:
> ============================================
> git clone https://github.com/bhundven/crosstool-ng
> cd crosstool-ng
> git checkout uclibc-ng
> ./bootstrap
> ./configure --enable-local
> make
> ct-ng bfin-unknown-linux-uclibc
> ct-ng build
> ============================================
>
> By default it will use gcc-5.2.0, but you can change that with `ct-ng
> menuconfig`.
> I just updated the pull request so that it also has the patch needed
> for gcc for gcc 4.9.2 and 4.9.3.

I noticed another problem today, where blackfin sets CROSS_COMPILE in
linux to bfin-uclinux- if CROSS_COMPILE is not set. I am updating the
pull request so CROSS_COMPILE is set for creating the linux headers.

I also noticed that in the crosstool-ng scripts/build/libc/uClibc.sh
script, we set CROSS="${CT_TARGET}-", but maybe that is something from
an older uClibc?
It should be setting CROSS_COMPILE, just like the kernel. I'm updating
the pull request right now. But the same  problem occurs. Has anyone
else been able to figure this out?

-Bryan

> -Bryan
>
>> Thanks,
>>
>> Reinoud.
>>
>> On Thu, Oct 29, 2015 at 1:40 PM, Bryan Hundven <bryanhundven@gmail.com> wrote:
>>> Reinoud,
>>>
>>> On Wed, Oct 28, 2015 at 5:14 PM, Reinoud Koornstra
>>> <reinoudkoornstra@gmail.com> wrote:
>>>> Hi Bryan,
>>>>
>>>> Can you also try with gcc 4.9.2?
>>>
>>> I have the same issue with 4.9.2.
>>>
>>>> Thanks,
>>>>
>>>> Reinoud.
>>>>
>>>> On Wed, Oct 28, 2015 at 12:22 PM, Bryan Hundven <bryanhundven@gmail.com> wrote:
>>>>> Thomas, list,
>>>>>
>>>>> I recently started working on uClibc-ng support in crosstool-ng:
>>>>>
>>>>> https://github.com/crosstool-ng/crosstool-ng/pull/221
>>>>>
>>>>> As I mentioned on IRC (irc.freenode.net #crosstool-ng), the blackfin
>>>>> sample fails with:
>>>>>
>>>>>     cc1: error: unrecognized command line option '-mfdpic'
>>>>>
>>>>> as seen on travis-ci:
>>>>>
>>>>> https://travis-ci.org/crosstool-ng/crosstool-ng/jobs/86800468
>>>>>
>>>>> The sample has been updated to use newer tools, and its possible that
>>>>> I'm maybe missing a patch for binutils-2.25.1 or gcc-5.2.0?
>>>>>
>>>>> Yann told me that you're pretty knowledgeable with blackfin support,
>>>>> and I was wondering if you could give me any pointers.
>>>>>
>>>>> I'm also looking for feedback/review on any of the other changes or
>>>>> issues found with the new uClibc-ng support.
>>>>>
>>>>> Thanks in advance,
>>>>>
>>>>> -Bryan
>>>>>
>>>>> --
>>>>> For unsubscribe information see http://sourceware.org/lists.html#faq
>>>>>

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