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From: "Arne Henrichsen" <ahenric@yahoo.com>
To: "Randy.Dunlap" <rddunlap@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: sys_sem* undefined
Date: Fri, 27 Aug 2004 10:26:05 +0100 (BST)	[thread overview]
Message-ID: <20040827092605.63433.qmail@web41504.mail.yahoo.com> (raw)
In-Reply-To: <20040826092825.0fc2eeb9.rddunlap@osdl.org>

> From an application (userspace) or from inside the
> kernel?

I need to do the syscalls from kernel space. Basically
I am porting our custom vxWorks driver to Linux. We
want to basically keep the structure of the vxWorks
driver the same, so I am porting the individual
vxWorks functions such as semBcreate, semGive etc.
Thats why I want to use the SysV IPC semaphores, as
they seem to most closely resemble the vxWorks ones. I
know that there are much better ways of writing a
driver, but that wouldn't fit in with the currect
structure we have at the moment.

Now if I want to call lets say sys_semget() from
kernel space, must I use the _syscall3() function? I
saw some people using this. 

Thanks for the help.
Arne


	
	
		
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  reply	other threads:[~2004-08-27  9:34 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-25 11:50 Arne Henrichsen
2004-08-25 16:14 ` Randy.Dunlap
2004-08-26  9:05   ` Arne Henrichsen
2004-08-26 14:08     ` Paulo Marques
2004-08-26 13:44   ` Arne Henrichsen
2004-08-26 16:28     ` Randy.Dunlap
2004-08-27  9:26       ` Arne Henrichsen [this message]
2004-09-05  3:51         ` Pete

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