From: Brad Boyer <flar@allandria.com>
To: linux-m68k@vger.kernel.org
Subject: Re: gcc parameter for kernel compile
Date: Sun, 10 May 2009 20:24:02 -0700 [thread overview]
Message-ID: <20090511032402.GA20493@cynthia.pants.nu> (raw)
In-Reply-To: <20090511015210.GA15777@luminet.net>
On Sun, May 10, 2009 at 08:52:12PM -0500, Lance Tagliapietra wrote:
> When compiling my m68k linux kernel, gcc is being started with the
> following first parameters, for example:
>
> gcc -Wp,-MD,sound/oss/dmasound/.dmasound_core.mod.o.d
>
> and all the other objects follow the same pattern.
>
> I am not able to locate -Wp,-MD... in the gcc documentation, any suggestions?
You need to look around at multiple places in the documentation for that
combination. The first part (-Wp) is described here (near the top):
http://gcc.gnu.org/onlinedocs/gcc-4.4.0/gcc/Preprocessor-Options.html#Preprocessor-Options
Basically, anything that is -Wp,<something> means that the "<something>"
is passed exactly as is to cpp. The -MD option to the preprocessor is
described in a later section on the same page.
The summary is that this command line is generating a dependency tree
for the file and saving it on disk for use by make.
Brad Boyer
flar@allandria.com
prev parent reply other threads:[~2009-05-11 3:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-11 1:52 gcc parameter for kernel compile Lance Tagliapietra
2009-05-11 3:24 ` Brad Boyer [this message]
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