linux-kernel - RE: Compile one file in kernel

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Date:	Wed, 11 Aug 2010 12:47:20 +0800
From:	"Zhang, Wei-Jovi (NSN - CN/Hangzhou)" <wei-jovi.zhang@....com>
To:	"ext zhanglx" <zhanglx@...ico.com.cn>,
	"Xiaotian Feng" <xtfeng@...il.com>
Cc:	<linux-kernel@...r.kernel.org>
Subject: RE: Compile one file in kernel

Sorry, I forgot it,  make will compare the timestamp of .c and .o file


-----Original Message-----
From: ext zhanglx [mailto:zhanglx@...ico.com.cn] 
Sent: Wednesday, August 11, 2010 12:48 PM
To: Zhang, Wei-Jovi (NSN - CN/Hangzhou); 'Xiaotian Feng'
Cc: linux-kernel@...r.kernel.org
Subject: RE: Compile one file in kernel

You mean make will not compare the timestamp of .c and .o file?

-----Original Message-----
From: linux-kernel-owner@...r.kernel.org
[mailto:linux-kernel-owner@...r.kernel.org] On Behalf Of Zhang, Wei-Jovi
(NSN - CN/Hangzhou)
Sent: Wednesday, August 11, 2010 12:10 PM
To: ext zhanglx; Xiaotian Feng
Cc: linux-kernel@...r.kernel.org
Subject: RE: Compile one file in kernel

Apparently not, you should run "rm -f <filename>.o" firstly, then "make
<filename>.o"
Maybe you can write a script to do this if you want to.

-----Original Message-----
From: ext zhanglx [mailto:zhanglx@...ico.com.cn] 
Sent: Wednesday, August 11, 2010 12:07 PM
To: 'Xiaotian Feng'; Zhang, Wei-Jovi (NSN - CN/Hangzhou)
Cc: linux-kernel@...r.kernel.org
Subject: RE: Compile one file in kernel

If .o file is not cleaned, make will automatically select the changed files
to compile and link?

-----Original Message-----
From: linux-kernel-owner@...r.kernel.org
[mailto:linux-kernel-owner@...r.kernel.org] On Behalf Of Xiaotian Feng
Sent: Wednesday, August 11, 2010 9:50 AM
To: Zhang, Wei-Jovi (NSN - CN/Hangzhou)
Cc: linux-kernel@...r.kernel.org
Subject: Re: Compile one file in kernel

On Wed, Aug 11, 2010 at 8:59 AM, Zhang, Wei-Jovi (NSN - CN/Hangzhou)
<wei-jovi.zhang@....com> wrote:
> Hi,
>        I always using command make, then it will compile all files. How
> about just compile one c file(just make sure some modify can compile
> successful), how should I do? Is there any command to allow me to doing
> this?

make <filename>.o

>        Thanks.
> .jovi
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