linux-kernel - Re: [PATCH] Implement uhook(call kernel func from userspace) driver

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Message-ID: <CAN_1RdujZ6ZFEecP26cKp0xvnSrXWOXgJnbcm6E3wCYPTSz4Dg@mail.gmail.com>
Date:	Sat, 23 Jun 2012 21:58:27 +0800
From:	Peiyong Feng <peiyong.feng.kernel@...il.com>
To:	Cong Wang <xiyou.wangcong@...il.com>
Cc:	Greg KH <gregkh@...uxfoundation.org>, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Implement uhook(call kernel func from userspace) driver

2012/6/23 Cong Wang <xiyou.wangcong@...il.com>:
> On Sat, Jun 23, 2012 at 2:01 PM, Peiyong Feng
> <peiyong.feng.kernel@...il.com> wrote:
>>
>> I mean that although the main line kernel cannot accept this patch, and
>> uhook is very useful to play a rule as a debug tool.
>
> It depends, we already have kprobe, tracepoint, kgdb, kdump...

May be I am not make myself understood. The uhook is not like kgdb, kprobe or
some other debug tools. As I mentioned in previous mail that we can
run the kernel
ksymbal while kernel is running, not like the kgdb that need some
hardware driver support
(lots of problems occurred when I try kgdb),

uhook is more "soft", it just provide a way that can call kernel
routine or ksymbals Asynchronously.

Easy but efficent. I have used it to develop device drivers, very
nice, and not every platform or board support
kgdb.
>
>> Is there some where else
>> that can hold this tool, and let more people use the uhook?
>
> You have github, don't you?
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