Update to GCC 12 for development branch (RTEMS 6)

[Chris Johns]

On 10/5/2022 7:26 pm, Sebastian Huber wrote:
> On 10/05/2022 10:28, Chris Johns wrote:
>> On 10/5/2022 1:13 am, Sebastian Huber wrote:
>>> Hello Karel,
>>>
>>> On 09/05/2022 17:09, Karel Gardas wrote:
>>>> I'm just curious is there any reason to use GCC from git (post release
>>>> version) and not vanilla 12.1 release tarball from gcc.gnu.org?
>>> this makes it easier to pick up a GCC 12 release branch which includes fixes
>>> relevant to RTEMS users.
>> An area this makes complicated for RTEMS users is how to raise bug reports
>> against gcc. The gcc bug form lists versions so what do we use?
> 
> You can just use the version from the --version output of GCC. If you really
> care about the bug report, then you can also use the RSB commit to get the exact
> GCC commit. If it is a regression, then you can do a git bisect to improve the
> quality of the bug report.

Thanks. I will add something to "Support and Contributing" section of the User
manual.

FYI I am working through that manual from top to bottom at the moment.

Chris