[OpenBIOS] SOLVED: the mystery of Solaris on SPARC32 and the missing Forth arguments

[Mark Cave-Ayland]

Hi all,

So I spent some time stepping through OpenBIOS SPARC32 with various 
debug options enabled trying to figure out why it was overwriting the 
wrong part of memory, and in r923 I believe I fixed a fairly obvious bug 
in the SPARC32 memory allocation routines.

With this fixed in SVN trunk, I now get much further booting my Solaris 
8 installation ISO:


Configuration device id QEMU version 1 machine id 32
CPUs: 1 x FMI,MB86904
UUID: 00000000-0000-0000-0000-000000000000
Welcome to OpenBIOS v1.0 built on Oct 28 2010 20:58
   Type 'help' for detailed information
Trying cdrom:d...
Not a bootable ELF image
Loading a.out image...
Loaded 7680 bytes
entry point is 0x4000
bootpath: /iommu/sbus/espdma/esp/sd at 2,0:d

Jumping to entry point 00004000 for type 00000005...
switching to new context:
device auxio size -1
SunOS Release 5.8 Version Generic_108528-09 32-bit
Copyright 1983-2001 Sun Microsystems, Inc.  All rights reserved.
qemu: fatal: Trap 0x29 while interrupts disabled, Error state
pc: f004127c  npc: f0041280
General Registers:
%g0-7: 00000000 00000808 00000001 f0041b74 00000000 f0243b88 00000000 
f0244020

Current Register Window:
%o0-7: f025831c f5a2f00c f0240374 f0240370 f024036c 00000004 f0240300 
f005bd84
%l0-7: 04400cc2 f005bf94 f005bf98 00000004 00000209 00000004 00000000 
f023fe60
%i0-7: 00000001 f02403f4 f5a2f00c f025831c 00000001 00000009 f023ff08 
f005c6b8

Floating Point Registers:
%f00: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f04: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f08: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f12: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f16: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f20: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f24: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
%f28: 000000000.000000 000000000.000000 000000000.000000 000000000.000000
psr: 04000cc2 (icc: ---- SPE: SP-) wim: 00000004
fsr: 00080000 y: 00000000
Aborted
build at zeno:~/rel-qemu-git/bin$


Artyom, do you see a similar improvement with your test Solaris images too?


ATB,

Mark.

-- 
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: +44 870 608 0063

Sirius Labs: http://www.siriusit.co.uk/labs