I need to build a tool that just lists the global variables for a given c project.

It appeared to me to be a straight simple operation using coccinelle, still the script I wrote does not return the expected values.

here the script

```

@g@
type T;
global idexpression T x;
@@
x

@script:python@
x << g.x;
@@
print (x)

```

And this is the simple file I used to test it.

```

#include <stdio.h>
#include <stdlib.h>

static char glid[3];
int cnt;

int function(int a){
return a;
}

int main(){
char *p;
int i,c;
p=malloc(100);
i=function(9);
c=sprintf(p, "Nice text%d\n", i);
puts(p);

free(p);
return 0;
}
```

my expectation was to get "glid" and "cnt" as product for the computation, instead I just get "function".
 

Could anybody clarify why this?

cheers