[uclibc-ng-devel] uClibc-ng 1.0.31 allowed ARM/FDPIC

Alexey Neyman stilor at att.net
Wed Feb 20 19:33:55 CET 2019


Thanks for satisfying my curiosity! :)

Best regards,
Alexey.

On 2/20/19 1:17 AM, Christophe Lyon wrote:
> On Wed, 20 Feb 2019 at 09:20, Alexey Neyman <stilor at att.net> wrote:
>> Hi,
>>
>> I've noticed that uClibc-ng now allows the FDPIC ELF for ARM: one of the
>> crosstool-NG samples that configures a toolchain for ARM with no MMU now
>> defaults to FDPIC rather than flat format. The problem is, though, it
>> then fails - because GCC complains that:
>>
>> armv6-nommu-linux-uclibcgnueabi-gcc: error: unrecognized command line
>> option '-mfdpic'; did you mean '-fpic'?
>>
>> I'll fix the default in crosstool-NG, but what intrigues me is that the
>> -mfdpic option isn't listed in GCC manual as one of the supported
>> options for ARM (it is only listed in FRV's options). How is this
>> configuration built?
>>
> Hi,
>
> This configuration is not supported yet by upstream GCC.
> I've sent several versions of the patch series, but since GCC entered
> stage4 (code freeze before release) a few weeks ago, its inclusion
> is going to be delayed.
>
> The last version of the GCC patches is:
> https://gcc.gnu.org/ml/gcc-patches/2018-11/msg01464.html
>
> Christophe
>
>> Regards,
>> Alexey.
>>
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