[OpenBIOS] [PATCH] ppc: force target CPU
programmingkidx at gmail.com
Mon Jan 25 15:48:16 CET 2016
On Jan 25, 2016, at 9:31 AM, Laurent Vivier wrote:
> Le 22/01/2016 16:26, Mark Cave-Ayland a écrit :
>> On 22/01/16 15:05, Andreas Färber wrote:
>>> Am 22.01.2016 um 14:59 schrieb Mark Cave-Ayland:
>>>> On 20/01/16 08:33, Laurent Vivier wrote:
>>>>> Le 19/01/2016 21:33, Mark Cave-Ayland a écrit :
>>>>>> Great! If we go with Segher's suggestion for 64-bit then we end up with
>>>>>> 32-bit: -mcpu=604
>>>>>> 64-bit: -mcpu=970 -mno-altivec
>>>>> I think you can use "-mcpu=power4" here, this is the old default value
>>>>> for gcc.
>>>> It seems they are effectively the same, so I don't have any strong
>>>> preference either way.
>>> I prefer Mark's explicit variant, ideally with some explanatory comment.
>> Thanks Andreas! Laurent, can you resubmit accordingly with a brief
>> comment for each summarising why these flags have been chosen?
> I can, but I'm not able to build openbios for target ppc64 on ppc64 host.
> Is this normal ?
It definitely shouldn't be.
> $ ./config/scripts/switch-arch ppc64
> Configuring OpenBIOS on ppc64 for ppc64
> Initializing build tree /home/laurent/Projects/openbios/obj-ppc64...ok.
> Creating target config.mak...ok.
> Creating target rules.mak...ok.
> Creating config files...ok.
> [laurent at pmacg5-1 openbios]$ make
> Building OpenBIOS for ppc64
> HOSTCC host/kernel/dict.o
> HOSTCC host/kernel/bootstrap.o
> HOSTCC host/kernel/forth.o
> HOSTCC host/kernel/stack.o
> HOSTCC forthstrap
> GEN bootstrap.dict
> panic: segmentation violation at 0x87a1062c
> dict=0x3fff87a10010 here=0x3fff87a10638(dict+0x628) pc=0x0(dict+0x785efff0)
> dstackcnt=0 rstackcnt=0 instruction=deadbeef
> dstack: 0x0
> rstack: 0x0
> Writing dictionary core file
> rules.mak:69: recipe for target 'bootstrap.dict' failed
> make: *** [bootstrap.dict] Error 1
> make: Leaving directory '/home/laurent/Projects/openbios/obj-ppc64'
> Makefile:19: recipe for target 'build' failed
> make: *** [build] Error 1
What operating system are you using to build OpenBIOS on?
Is your operating system 32 bit or 64 bit?
What version of GCC are you using?
More information about the OpenBIOS