linux-kernel - Re: 回复： Re: 回复： Re: 回复： Status of 'unicore32' architecture in Linux kernel

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Message-ID: <54094FA7.6000809@roeck-us.net>
Date:	Thu, 04 Sep 2014 22:52:39 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Xuetao Guan <gxt@....edu.cn>
CC:	linux-kernel@...r.kernel.org, Guan Xuetao <gxt@...c.pku.edu.cn>,
	Chen Gang <gang.chen.5i5j@...il.com>,
	Grant Likely <grant.likely@...aro.org>
Subject: Re: 回复： Re: 回复： Re: 回复： Status of 'unicore32' architecture in Linux kernel

On 09/03/2014 01:32 AM, Xuetao Guan  wrote:
>
[ ... ]

>> Please try the following patch. That seems to do it.
>> I am sure it can be improved, but it is a start.
>>
>> Thanks,
>> Guenter
>
> Thanks. I'll test it.
> BTW, Qemu codestyle is different, and tab should be replaced with blanks.
>

Here is where I am. User space code (busybox) was compiled
using the unicore toolchain available on the web.

...
serio: i8042 KBD port at 0x6eb00060,0x6eb00064 irq 22
mousedev: PS/2 mouse device common for all mice
Enable UniCore-F64 support.
Warning: unable to open an initial console.
Freeing unused kernel memory: 1156K (c0408000 - c0529000)

Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

The kernel tries to execute the init program, which fails with SIGSEGV.
I confirmed that the init program is loaded and starts to execute.

Any idea what might cause such a problem ?

Thanks,
Guenter

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