[Cocci] new to cocci, help needed
julia.lawall at lip6.fr
Fri Apr 21 11:10:36 CEST 2017
On Fri, 21 Apr 2017, Kaspar Schleiser wrote:
> Hello all,
> I'm just beginning to write my own semantic patches, and I'm having a
> little trouble getting the hang of it.
> Currently I'm trying to unify all calls to a function named "f" taking a
> pointer to a variable and the variable's size as arguments, which I want
> to deduce using sizeof:
> f(..., &var, sizeof(var))
> My initial approach looks similar to this:
> expression E1, E2;
> - E2,
> + sizeof(E1))
> ... but this doesn't find e.g., "f(a, b, &test, whatever);".
> What am I doing wrong?
Your pattern has *E1, but you are hoping to match &E1.
If you mean that E1 should be a random pointer-typed expression, then that
constraint should go in the metavariable list, eg
More information about the Cocci