Update to GCC 12 for development branch (RTEMS 6)

[Karel Gardas]

Hello Sebastian,

thanks a lot for dealing with GCC 12 update. 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?

Thanks!
Karel

On 5/9/22 14:54, Sebastian Huber wrote:
> Hello,
> 
> I updated the RSB to use the latest GCC 12 release branch version. GCC 
> 12.1 was released on May 6th:
> 
> https://gcc.gnu.org/gcc-12/changes.html
> 
> One interesting GCC 12 feature for embedded systems is the default 
> initialization of stack variables:
> 
> https://gcc.gnu.org/onlinedocs/gcc-12.1.0/gcc/Optimize-Options.html#index-ftrivial-auto-var-init 
> 
> 
> I added a back port for improved gcov support for which I missed the GCC 
> 12 development stage:
> 
> https://gcc.gnu.org/onlinedocs/gcc/Freestanding-Environments.html#Freestanding-Environments 
> 
>