This works... Thank you very much.

Palani.

On Wed, Aug 3, 2022 at 11:33 AM Julia Lawall <julia.lawall@inria.fr> wrote:

>
>
> On Wed, 3 Aug 2022, Palani kodeswaran wrote:
>
> > Hello,
> >
> > I am new to coccinelle and am trying to see if it would be possible in
> coccinelle to add a header file to a source file.
> > Our current coccinelle rules change function calls to a different
> function that is defined in another header file that is not included by
> default. Would greatly appreciate if someone could point to an example that
> can accomplish adding header files.
>
> You should be able to do:
>
> @@
> @@
>
> #include <...>
> +#include <myheader.h>
>
> The problem comes if there is no include in your code at the moment.  I
> don't think there is any convenient solution for this at the moment.
>
> You could use python to print out that your Coccinelle rule has detected
> that the header file shold be added, and then add it by hand.
>
> Also, the above will not necessarily put the header file at the place
> where you want it.  I don't really remember what strategy it uses.
> Perhaps it is just put as the last one with the above rule, and as the
> first one with the following:
>
> @@
> @@
>
> +#include <myheader.h>
> #include <...>
>
> Instead of ... you can also put a file name, if there is a specific file
> you want the new header to always be before or after.
>
> You may also need to make separate rules for the case
>
> #include "..."
>
> You can give each rule a name, and then ensure that later ones are only
> run if earlier ones are not used, eg:
>
> @r1@
> @@
> - foo
> + bar
>
> @depends on !r1@
> @@
>
> - xxx
> + yyy
>
> julia