On Thu Nov 25 2010 at 14:05:28 +0000, Izumi Tsutsui wrote:
> Module Name: src
> Committed By: tsutsui
> Date: Thu Nov 25 14:05:28 UTC 2010
>
> Modified Files:
> src/sys/arch/pmax/stand/common: startprog.S
>
> Log Message:
> Fix botch on mips64 merge:
> - use correct offsets to pass args to loaded kernel in __mips_o32 case
>
> Now NetBSD/pmax kernel properly boots, but init(8) still doesn't start
> on GXemul emulating R3000 3MAX.
One remaining problem (which was debugged by Alessandro Forin) is that
the post-mips64 brk/sbrk syscall stubs depend on "syscall" retaining t0,
and the kernel doesn't do that. I have this in my local tree and it makes
a mips1 platform boot with new userland. See if it helps on pmax too:
--- locore_mips1.S 8 Nov 2010 18:09:38 -0000 1.68
+++ locore_mips1.S 25 Nov 2010 14:15:39 -0000
@@ -418,7 +418,7 @@ NESTED_NOPROFILE(mips1_SystemCall, CALLF
sw a3, FRAME_A3(k1)
lw a0, CPUVAR(CURLWP) # 1st arg is curlwp
mfhi v1
- #sw t0, FRAME_T0(k1) # no need to save temp regs
+ sw t0, FRAME_T0(k1) # no need to save temp regs
#sw t1, FRAME_T1(k1)
#sw t2, FRAME_T2(k1)
#sw t3, FRAME_T3(k1)
