RTEMS 4.7.99.2 Available -- PowerPC/virtex feedback

[Keith Robertson]

Joel Sherrill wrote:
> Robert S. Grimes wrote:
>> gregory.menke at gsfc.nasa.gov wrote:
>>   
>>> You'll have to apply -msoft-float to more than the RTEMS kernel, newlib
>>> (being part of the toolchain) needed to be compiled with it as well.
>>>   
>>>     
>> Does this mean rebuilding gcc?  Or can newlib be built separately?
>>
>> I assume I'll need to reconfigure gcc, right?  What switch to I add to 
>> the configure command?
>>   
> If you are using the RTEMS RPMs or standard configure
> command, then you have a lot of multilib variants.
> 
> GCC has some differences for 403, 405, and 405fp.
> Is the virtex CPU really a 403 like the CPU_CFLAGS indicates?
> 
> This is the difference from gcc's viewpoint:
> 
>     = {{"401", PROCESSOR_PPC403, POWERPC_BASE_MASK | MASK_SOFT_FLOAT},
>          {"403", PROCESSOR_PPC403,
>           POWERPC_BASE_MASK | MASK_SOFT_FLOAT | MASK_STRICT_ALIGN},
>          {"405", PROCESSOR_PPC405,
>           POWERPC_BASE_MASK | MASK_SOFT_FLOAT | MASK_MULHW | MASK_DLMZB},
>          {"405fp", PROCESSOR_PPC405,
>           POWERPC_BASE_MASK | MASK_MULHW | MASK_DLMZB},
>          {"440", PROCESSOR_PPC440,
>           POWERPC_BASE_MASK | MASK_SOFT_FLOAT | MASK_MULHW | MASK_DLMZB},
>          {"440fp", PROCESSOR_PPC440,

The xilinx virtex 4fx is a ppc405 with no floating point unit.  It is 
definitely not a ppc403.

Cheers.

Keith