arm-rtems switch default target to EABI

[Joel Sherrill]

Hi

Since patches in PRs don't get much attention,
this is an email about the attached patches
from Sebastian Huber and myself to correct
the arm rtems target name situation.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53325

There is a long explanation in the PR but the short
version is that although we fully intended to switch
the arm-rtems target from ELF to EABI we never
intended the target name "arm-*-rtemseabi*" to
become the preferred arm RTEMS target name.
We want all RTEMS target names to be of the form
<cpu>-rtems.  Unfortunately, we screwed up
and arm-rtems is marked as deprecated in 4.7.

These patches do the following:

+ rename arm-*-rtems* to arm-*-rtemself*
+ make arm-*-rtemself* deprecated
+ make arm-*-rtems* an accepted name for
     arm-*-rtemseabi*

arm-*-rtemself* can disappear when the ARM elf
targets are generally removed.

Sebastian tested them and the results are at:

http://gcc.gnu.org/ml/gcc-testresults/2012-05/msg00322.html
http://gcc.gnu.org/ml/gcc-testresults/2012-05/msg00323.html
http://gcc.gnu.org/ml/gcc-testresults/2012-05/msg00324.html

RTEMS is very consistent across target architectures
and this just slipped through. We handled switches from
a.out -> coff -> elf in a similar manner in the past.

I hope it is OK to merge this.

Thanks.

-- 
Joel Sherrill, Ph.D.             Director of Research&   Development
joel.sherrill@OARcorp.com        On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
     Support Available             (256) 722-9985


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