On Tue, 30 Apr 2019, Nicholas Mc Guire wrote:
> On Mon, Apr 29, 2019 at 12:26:49PM -0400, Julia Lawall wrote:
> >
> >
> > On Mon, 29 Apr 2019, Nicholas Mc Guire wrote:
> >
> > >
> > > Hi !
> > >
> > > I'm trying to detect false positive sparse messages by taking
> > > the pattern and scanning with coccinelle for it so that the
> > > fix could be generated. Basically the identification seems
> > > to be working (a type-check on var is stil missing - but thats
> > > a different issue) - the problem though is that I'm unable
> > > to insert the (__force __be16) cast in the patch rule as
> > > coccinelle is refusing hose lines. Any hint how that could be
> > > done or is the problem the syntactic oddity of having a
> > > unknown keyworkd followed by a type that is confusing coccinelle
> > > here ?
> >
> > Types like this are currently not parsed properly - see the GSoC project.
> > I'm not sure that there is a good solution at the moment. This should be
> > parsed OK by the C parser, so you could try passing through python. See
> > python_mdecl.cocci. It may be necessary to construct the complete
> > expression (__force __be16)var in python.
> >
> ok - so I guess this means the issue applies to all type attributes
> then. Using python might be doable but the goal is to not grow the
> number of involved tools - there are already too many anyway.
> I'll try poking around in coccinelle then - not sure how hard that
> would be to add that - something like an typedef equivalent called
> attributedef would be my first guess.
Some attributes are supported, but not in casts.
julia
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