Add more stubs to RTEMS dummy crt0

[Ralf Corsepius]

On 05/09/2012 11:03 AM, Corinna Vinschen wrote:
> On May  7 16:12, Joel Sherrill wrote:
>> This patch adds more stubs to the RTEMS crt0.c so
>> autoconf probes for gfortran and Go are happy
>> with RTEMS. The crt0 stub satisfies symbols which will
>> really only be available when an actual RTEMS image
>> is linked against.
>>
>> OK to apply?
>>
>> 2012-05-07  Joel Sherrill<...>
>>
>>      * libc/sys/rtems/crt0.c: Add stubs for access(), ftruncate(),
>>      _getpid_r(), geteuid(), getgid, _getgid_r, getpid(), getppid(),
>>      and _getpid_r().
>
> Patch applied.

I regret not having vetoed earlier, sorry ;)

It escapes me which issue Joel is trying to address with these stubs, 
because these symbols are provided by rtems and are not provided nor 
used by newlib.

Background: The original rationale for the stubs is to make newlib 
selfcontained i.e. to provide sufficient symbols such that all symbols 
from newlib can be resolved from inside of newlib. This is sufficient to 
compile RTEMS itself.

All external packages built upon newlib+rtems are supposed to receive 
all symbols from linking agains "newlib+rtems".

With this patch applied, there is no clear distinction between "pure 
newlib" and "newlib + rtems" anymore.

Ralf