Re: [PATCH] Update RTEMS multilib for SPARC

[Sebastian Huber <sebastian.huber@embedded-brains.de>]

On 28/09/15 14:33, Sebastian Huber wrote:
> On 28/09/15 14:13, Daniel Hellstrom wrote:
>> Now that muser-mode is default the multilib definitions does not 
>> require to
>> specify that switch any more. Add UT699 to multilib after recent 
>> patches. Add
>> AT697F multilib since there are many LEON2 users running RTEMS.
>>
>> To gcc/ChangeLog:
>>
>> gcc/
>>     * config/sparc/t-rtems: Remove -muser-mode, add ut699 and at697f
>> ---
>>   gcc/config/sparc/t-rtems |   25 +++++++++++++++----------
>>   1 files changed, 15 insertions(+), 10 deletions(-)
>>
>> diff --git a/gcc/config/sparc/t-rtems b/gcc/config/sparc/t-rtems
>> index adb6dcb..6f7cc6f 100644
>> --- a/gcc/config/sparc/t-rtems
>> +++ b/gcc/config/sparc/t-rtems
>> @@ -17,15 +17,20 @@
>>   # <http://www.gnu.org/licenses/>.
>>   #
>>   -MULTILIB_OPTIONS = msoft-float mcpu=v8/mcpu=leon3/mcpu=leon3v7 
>> muser-mode
>> -MULTILIB_DIRNAMES = soft v8 leon3 leon3v7 user-mode
>> +MULTILIB_OPTIONS = msoft-float 
>> mcpu=v8/mcpu=leon3/mcpu=leon3v7/mcpu=leon \
>> +           mfix-ut699/mfix-at697f
>> +MULTILIB_DIRNAMES = soft v8 leon3 leon3v7 leon ut699 at697f
>>   MULTILIB_MATCHES = msoft-float=mno-fpu
>>   -MULTILIB_EXCEPTIONS = muser-mode
>> -MULTILIB_EXCEPTIONS += mcpu=leon3
>> -MULTILIB_EXCEPTIONS += mcpu=leon3v7
>> -MULTILIB_EXCEPTIONS += msoft-float/mcpu=leon3
>> -MULTILIB_EXCEPTIONS += msoft-float/mcpu=leon3v7
>> -MULTILIB_EXCEPTIONS += msoft-float/muser-mode
>> -MULTILIB_EXCEPTIONS += msoft-float/mcpu=v8/muser-mode
>> -MULTILIB_EXCEPTIONS += mcpu=v8/muser-mode
>> +MULTILIB_EXCEPTIONS = mfix-ut699
>> +MULTILIB_EXCEPTIONS += msoft-float/mfix-ut699
>> +MULTILIB_EXCEPTIONS += msoft-float/mcpu=v8/mfix-ut699
>> +MULTILIB_EXCEPTIONS += msoft-float/mcpu=leon3*/mfix-ut699
>> +MULTILIB_EXCEPTIONS += mcpu=v8/mfix-ut699
>> +MULTILIB_EXCEPTIONS += mcpu=leon3*/mfix-ut699
>> +MULTILIB_EXCEPTIONS += mfix-at697f
>> +MULTILIB_EXCEPTIONS += msoft-float/mfix-at697f
>> +MULTILIB_EXCEPTIONS += msoft-float/mcpu=v8/mfix-at697f
>> +MULTILIB_EXCEPTIONS += msoft-float/mcpu=leon3*/mfix-at697f
>> +MULTILIB_EXCEPTIONS += mcpu=v8/mfix-at697f
>> +MULTILIB_EXCEPTIONS += mcpu=leon3*/mfix-at697f
>
> Why do we need so many variants with fixes for the UT699 (32-bit 
> Fault-Tolerant LEON3FT SPARC V8 Processor) and the AT697F (LEON2-FT)? 
> Why do we have no leon3 variant without fixes for the UT699 and 
> AT697F? Which multilib do you suggest now for the NGMP/GR740?
>

Sorry, for these stupid questions. Maybe we should change this file to 
use MULTILIB_REQUIRED, like on rs6000 and arm.

Which multilibs do we have after this change?

-- 
Sebastian Huber, embedded brains GmbH

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