building openbios sparc64 for qemu
by berrie.schuurhuis＠gmail.com
As a newbee in this space I got qemu-system-sparc[64] running on a linux machine.
Trying to find out how qemu and openbios work together I'm currently looking into building openbios-sparc64.
This goes with mixed success as https://www.openfirmware.info/OpenBIOS has nice description on how to build openbios, but there's a missing link as to how to harvest the openbios-sparc64 from this.
My build of openbios is done on an Ultra60(Sparc) machine that runs:
Linux ultra60 4.19.0-2-sparc64 #1 Debian 4.19.16-1 (2019-01-17) sparc64 GNU/Linux
with gcc --version
gcc (Debian 8.3.0-2) 8.3.0
It seems like the file openbios/obj-sparc64/openbios-builtin.elf may be the candidate to become openbios-sparc64??
When giving this a try, and moving openbios-builtin.elf to my x86 qemu machine, it crashes spectacularly with:
qemu: fatal: Trap 0x0064 while trap level (5) >= MAXTL (5), Error state
pc: 0000000000004c80 npc: 0000000000004c84
%g0-3: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%g4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%o0-3: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%o4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%l0-3: 00000000fff001e0 000001ff00000000 000001fff0080000 0000000000000000
%l4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%i0-3: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%i4-7: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f00: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f24: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f32: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f40: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f48: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
%f56: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
pstate: 00000414 ccr: 44 (icc: -Z-- xcc: -Z--) asi: 00 tl: 5 pil: 0 gl: 2
tbr: 0000000000000000 hpstate: 0000000000000000 htba: 0000000000000000
cansave: 6 canrestore: 0 otherwin: 0 wstate: 0 cleanwin: 6 cwp: 7
fsr: 0000000000000000 y: 0000000000000000 fprs: 0000000000000000
On x86: Booting qemu with the provided openbios-sparc64 rom works flawless.
On the Ultra60: Running ./openbios-unix openbios-sparc64.dict seems to behave as expected:
Output device screen not found.
Input device keyboard not found.
Output device screen not found.
Type 'help' for detailed information
[unix] Booting default not supported.
Trying disk...
No valid state has been set by load or init-program
0 > help
To get openbios build, I had to make a small change in Makefile.target:
#CFLAGS+= -Werror
CFLAGS+= -Wno-error
To "fix":
Building OpenBIOS for sparc64
Building...
/usr/bin/xsltproc
error:
CC target/arch/unix/unix.o
CC target/arch/unix/boot.o
/sources/openbios/arch/unix/boot.c:101:6: error: redundant redeclaration of 'forth_fw_cfg_read_file' [-Werror=redundant-decls]
void forth_fw_cfg_read_file(void);
^~~~~~~~~~~~~~~~~~~~~~
In file included from ./target/include/asm/io.h:8,
from /sources/openbios/include/kernel/kernel.h:22,
from /sources/openbios/include/libopenbios/bindings.h:21,
from /sources/openbios/arch/unix/boot.c:6:
/sources/openbios/include/arch/common/fw_cfg.h:104:6: note: previous declaration of 'forth_fw_cfg_read_file' was here
void forth_fw_cfg_read_file(void);
^~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Any pointers or suggestions to continue this journey are appreciated.
4 weeks, 1 day
- 4
- 6
Build sparc32 openbios
by BALARD Arnaud
Hi, Openbios !
I try to build a bios sparc32 for qemu.
I use the script "./config/scripts/switch-arch sparc32"
Initializing build tree ok
Creating taget config.mak ok
Creating taget rules.mak ok
Creating config files ok
When I do the "make build-verbose" I get the following error :
"PATH/openbios/arch/sparc32/context.c: In function 'switch_to':
"PATH/openbios/arch/sparc32/context.c:116:5: error: PIC register clobbered by 'l7' in 'asm'
Asm_volatile_("\n\tcall_switch_context"
^~~
Rules.mak:219 « target/arch/sparc32/context.o » failed
Make[1]: *** [target/arch/sparc32/context.o error 1
Makefile:32 target "subdir-sparc32" failed
Make: *** [subdir-sparc32] error 2
I was try to build ppc and sparc64, that's ok, I can boot on my ppc's bios (not on sparc64, I think I need to do another thing).
Do you know what I'm doing wrong for sparc 32 ?
Thanks,
Libre (C=0)
Interne (C=1)
Restreint (C=2)
Confidentiel (C=3)
X
[X]
Arnaud BALARD
Chargé d'Exploitation et d'Affaires
EDF - DPNT - DAIP - UNITEP
AEI - Groupe SIMU
UFPI Bugey
CD 20 - BP 70130
01155 LAGNIEU
arnaud.balard(a)edf.fr
Tél. : 04 37 63 62 72
Un geste simple pour l'environnement, n'imprimez ce message que si vous en avez l'utilité.
Ce message et toutes les pièces jointes (ci-après le 'Message') sont établis à l'intention exclusive des destinataires et les informations qui y figurent sont strictement confidentielles. Toute utilisation de ce Message non conforme à sa destination, toute diffusion ou toute publication totale ou partielle, est interdite sauf autorisation expresse.
Si vous n'êtes pas le destinataire de ce Message, il vous est interdit de le copier, de le faire suivre, de le divulguer ou d'en utiliser tout ou partie. Si vous avez reçu ce Message par erreur, merci de le supprimer de votre système, ainsi que toutes ses copies, et de n'en garder aucune trace sur quelque support que ce soit. Nous vous remercions également d'en avertir immédiatement l'expéditeur par retour du message.
Il est impossible de garantir que les communications par messagerie électronique arrivent en temps utile, sont sécurisées ou dénuées de toute erreur ou virus.
____________________________________________________
This message and any attachments (the 'Message') are intended solely for the addressees. The information contained in this Message is confidential. Any use of information contained in this Message not in accord with its purpose, any dissemination or disclosure, either whole or partial, is prohibited except formal approval.
If you are not the addressee, you may not copy, forward, disclose or use any part of it. If you have received this message in error, please delete it and all copies from your system and notify the sender immediately by return message.
E-mail communication cannot be guaranteed to be timely secure, error or virus-free.
1 month, 3 weeks
- 3
- 4
- ← Newer
- 1
- Older →