[gcc v2] Enable some features for RTEMS in libstdc++

[Chris Johns]

On 22/6/2022 4:05 pm, Sebastian Huber wrote:
> On 22/06/2022 05:34, Chris Johns wrote:
>> On 22/6/2022 6:38 am, Chris Johns wrote:
>>>> On 21 Jun 2022, at 5:39 pm, Sebastian Huber
>>>> <sebastian.huber at embedded-brains.de> wrote:
>>>>
>>>> On 09/06/2022 20:19, Sebastian Huber wrote:
>>>>> Remove RTEMS support from crossconfig.m4 since this code is not used due to
>>>>> "with_newlib" being "yes".
>>>>> libstdc++-v3/ChangeLog:
>>>>>     * configure: Regnerate.
>>>>>     * configure.ac (newlib, *-rtems*): Enable TLS support for all RTEMS
>>>>>     targets except bfin, lm32, mips, moxie, or1k, and v850.
>>>>>     For all RTEMS targets, define HAVE_ALIGNED_ALLOC, HAVE_AT_QUICK_EXIT,
>>>>>     HAVE_LINK, HAVE_POLL, HAVE_QUICK_EXIT, HAVE_READLINK, HAVE_SETENV,
>>>>>     HAVE_SLEEP, HAVE_SOCKATMARK, HAVE_STRERROR_L, HAVE_SYMLINK,
>>>>>     HAVE_TRUNCATE, and HAVE_USLEEP.
>>>>>     * crossconfig.m4 (*-rtems*): Remove.
>>>>
>>>> Any comments?
>>
>> Is there a ticket to track this change?
> 
> https://devel.rtems.org/ticket/4668
> 
>>
>>> I think this is sensible. Has it been tested on real code?
>>>
>>>> I would like to back port this patch to GCC 10, 11, and 12.
>>
>> I see this patch is for master. Is a gcc 12 patch available so I can test it?
> 
> The patch works also for GCC 12. I only did a test run of the RTEMS tests.

It failed to apply for me with the gcc-12 for rtems6. The configure pieces did
not apply.

Chris