Using c2xml on kernel sources

Using c2xml on kernel sources

[Shakthi Kannan]

Hi,

I would like to run c2xml on the Linux kernel sources. Is there a
recommended way of using the tool on kernel code?

I tried running it directly on a source file, but, get the
'header-file "unable to open" error.

  $ c2xml linux-3.0.4/net/ethernet/eth.c

  ../linux-3.0.4/net/ethernet/eth.c:40:11: error: unable to open
'linux/module.h'

I have built sparse from git sources (v0.4.4) on Fedora 15 x86_64.

Appreciate any inputs in this regard.

Thanks!

SK

-- 
Shakthi Kannan
http://www.shakthimaan.com

Re: Using c2xml on kernel sources

[Bernd Petrovitsch]

Hi!
On Die, 2012-03-20 at 14:30 +0530, Shakthi Kannan wrote:
[...]
> I would like to run c2xml on the Linux kernel sources. Is there a
> recommended way of using the tool on kernel code?
> 
> I tried running it directly on a source file, but, get the
> 'header-file "unable to open" error.
> 
>   $ c2xml linux-3.0.4/net/ethernet/eth.c
> 
>   ../linux-3.0.4/net/ethernet/eth.c:40:11: error: unable to open
> 'linux/module.h'
> 
> I have built sparse from git sources (v0.4.4) on Fedora 15 x86_64.

Someone probably have to tell c2xml where to look for the .h files
similar to gcc's "-I" parameters.

	Bernd
-- 
Bernd Petrovitsch                  Email : bernd@petrovitsch.priv.at
                     LUGA : http://www.luga.at

Re: Using c2xml on kernel sources

[Dan Carpenter]

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On Tue, Mar 20, 2012 at 02:30:18PM +0530, Shakthi Kannan wrote:
> Hi,
> 
> I would like to run c2xml on the Linux kernel sources. Is there a
> recommended way of using the tool on kernel code?
> 
> I tried running it directly on a source file, but, get the
> 'header-file "unable to open" error.
> 
>   $ c2xml linux-3.0.4/net/ethernet/eth.c
> 

make C=2 CHECK="c2xml > foo.xml" net/ethernet/eth.o


regards,
dan carpenter


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Re: Using c2xml on kernel sources

[Shakthi Kannan]

Hi Dan:

--- On Tue, Mar 20, 2012 at 4:07 PM, Dan Carpenter
<dan.carpenter@oracle.com> wrote:
| make C=2 CHECK="c2xml > foo.xml" net/ethernet/eth.o
\--

That worked!

But, is it really required to generate eth.o? Is it possible to just
parse through the sources, produce the .xml output without having to
generate the object files?

Thanks for your reply,

SK

-- 
Shakthi Kannan
http://www.shakthimaan.com

Re: Using c2xml on kernel sources

[Dan Carpenter]

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On Tue, Mar 20, 2012 at 08:55:48PM +0530, Shakthi Kannan wrote:
> Hi Dan:
> 
> --- On Tue, Mar 20, 2012 at 4:07 PM, Dan Carpenter
> <dan.carpenter@oracle.com> wrote:
> | make C=2 CHECK="c2xml > foo.xml" net/ethernet/eth.o
> \--
> 
> That worked!
> 
> But, is it really required to generate eth.o? Is it possible to just
> parse through the sources, produce the .xml output without having to
> generate the object files?
> 

No, I can't think of an easy way.

regards,
dan carpenter.


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Re: Using c2xml on kernel sources

[Shakthi Kannan]

Hi,

Replying to my own post (for future reference):

--- On Tue, Mar 20, 2012 at 08:55:48PM +0530, Shakthi Kannan wrote:
| But, is it really required to generate eth.o? Is it possible to just
| parse through the sources, produce the .xml output without having to
| generate the object files?
\--

I had to use:

MAKEFLAGS+="--dry-run" make C=2 CHECK="c2xml > foo.xml"
net/ethernet/eth.o > output.txt

eval `tail -2 output.txt | head -1`

SK

-- 
Shakthi Kannan
http://www.shakthimaan.com

Re: Using c2xml on kernel sources

[Christopher Li]

On Wed, May 23, 2012 at 2:59 AM, Shakthi Kannan <shakthimaan@gmail.com> wrote:
>
> MAKEFLAGS+="--dry-run" make C=2 CHECK="c2xml > foo.xml"
> net/ethernet/eth.o > output.txt
>
> eval `tail -2 output.txt | head -1`
>

That is a great tip.

Thanks.

Chris