Le 25/01/2016 15:48, Programmingkid a écrit :
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 > this: > > 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@pmacg5-1 openbios]$ make Building OpenBIOS for ppc64 Building... error: 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[1]: *** [bootstrap.dict] Error 1 make[1]: 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?
Fedora23/ppc64
Is your operating system 32 bit or 64 bit?
64bit. but I've tested on debian ppc 32bit and it fails for another reason:
CC target/arch/ppc/qemu/init.o /home/laurent/Projects/openbios/arch/ppc/qemu/init.c: In function ‘adler32’: /home/laurent/Projects/openbios/arch/ppc/qemu/init.c:705:17: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] char *buf = (char *)POP(); ^ cc1: all warnings being treated as errors
What version of GCC are you using?
64bit host: gcc (GCC) 5.1.1 20150618 (Red Hat 5.1.1-4) 32bit host: gcc (Debian 4.9.2-10) 4.9.2
Laurent