Re: [PATCH v3 5/8] scripts: add Linux .cocciconfig for coccinelle

[Julia Lawall]

On Wed, 22 Jun 2016, Luis R. Rodriguez wrote:

> On Tue, Jun 21, 2016 at 11:12:54PM +0200, Julia Lawall wrote:
> > On Tue, 21 Jun 2016, Nicolas Palix (LIG) wrote:
> > 
> > > Le 21/06/16 à 21:21, Luis R. Rodriguez a écrit :
> > > > Help Coccinelle when used against Linux with a set of sensible defaults
> > > > options for Linux. This hints to coccinelle git can be used for 'git grep'
> > > > queries over coccigrep. A timeout of 200 seconds should suffice for now.
> > > > 
> > > > If you use idutils you can override for 'make coccicheck' by using the
> > > > SPFLAGS option as follows:
> > > > 
> > > > First build the index, for example:
> > > > mkid -s
> > > > 
> > > > Pick the cocci file you wnat to work with:
> > > > export COCCI=scripts/coccinelle/misc/irqf_oneshot.cocci
> > > > 
> > > > Then run coccicheck:
> > > > $ make coccicheck V=1 MODE=report SPFLAGS="--use-idutils ID"
> > > > 
> > > > Coccinelle supports reading .cocciconfig from different directories,
> > > > the later one overriding the previous reads in the following order:
> > > > 
> > > >  o Your current user's home directory is processed first
> > > >  o Your directory from which spatch is called is processed next
> > > >  o The directory provided with the --dir option is processed last, if used
> > > > 
> > > > Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxx>
> > > Acked-by: Nicolas Palix <nicolas.palix@xxxxxxx>
> > 
> > Hmm, I can see at least some advantages to encouraging people to do it the 
> > Coccinelle way, with the Coccinelle script rather than mkid directly.  
> > Then, if we need some other features specific to Coccinelle, we can just 
> > add them.
> 
> I can simply document that if users are used to using their own
> target output file, and if they wanted it to be used by coccinelle
> simply symlinking .id-utils.index to it would enable coccinelle
> to pick it up by default.
> 
> If that is done, would the new .cocciconfig not override though?

I don't understand.

julia