[PATCH] RTEMS: Improve GCC specification

[Sebastian Huber]

On 07/04/2020 09:29, Sebastian Huber wrote:

> Add a start/end file specification if the -qrtems option is present.
> Allow targets to customize it.
>
> Support the standard -nodefaultlibs option.
>
> gcc/
>
> 	* config/rs6000/rtems.h (RTEMS_STARTFILE_SPEC): Define.
> 	(RTEMS_ENDFILE_SPEC): Likewise.
>
> 	* config/rtems.h (RTEMS_STARTFILE_SPEC): Define if undefined.
> 	(RTEMS_ENDFILE_SPEC): Likewise.
> 	(STARTFILE_SPEC): Update comment.  Add RTEMS_STARTFILE_SPEC.
> 	(ENDFILE_SPEC): Add RTEMS_ENDFILE_SPEC.
> 	(LIB_SPECS): Support -nodefaultlibs option.

This change is intended for GCC 10 and RTEMS 6:

https://devel.rtems.org/ticket/3937

I will add this patch to the RTEMS 6 RSB build and try to build the BSPs 
without a bsp_specs file with it.