From: "Randy.Dunlap" <rddunlap@osdl.org>
To: "Yan, Noah" <noah.yan@intel.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: vm documentation
Date: Fri, 02 Nov 2001 09:00:19 -0800 [thread overview]
Message-ID: <3BE2D123.DAC9B571@osdl.org> (raw)
In-Reply-To: <A9B0C3C90A46D411951400A0C9F4F67103BA56E3@pdsmsx33.pd.intel.com>
"Yan, Noah" wrote:
>
> Is there any resources(such as programming guide or referrence book) for the C language grammar in gcc, especially for Kernel? Such as what is _init, 1<<12, asmlinkage, etc?
>
>
> From: Robert Love [mailto:rml@tech9.net]
>
> See http://kernelnewbies.org for some introduction to kernel hacking...
Noah,
Lots of your questions are appropriate for kernelnewbies.org .
__init (with 2 underscores) is defined in the header file
linux/include/linux/init.h
It marks a code (text) segment as being discardable after boot/init
for code that is not in a module (i.e., it is compiled into the
kernel boot image).
"1<<12" is C. Take the value 1, shift it left 12 times (bits),
giving 0x1000.
~Randy
next prev parent reply other threads:[~2001-11-02 17:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-02 7:53 vm documentation Yan, Noah
2001-11-02 17:00 ` Randy.Dunlap [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-03-18 14:07 VM documentation Mel Gorman
2001-11-02 6:53 vm documentation David Chow
2001-11-02 7:22 ` Robert Love
2001-11-02 11:25 ` Neil Brown
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