Treatment of builtin that receives function pointer

[Paulo J. Matos]

On Thu, Jan 28, 2010 at 2:58 PM, Andrew Haley <aph@redhat.com> wrote:
>
> dladdr()
>

Thanks Andrew but this answer seems to assume I am trying to obtain
this in a C program from a previously compiled function.

However, I am inside GCC which access to the gimple tree of the function.

I found out the problem I was having but not the solution yet.
My builtin function gets angry when given a function pointer which is
not (void) (*)(void). As a result, it casts the function.
So something like:
void foo(int) { }
..
__mybuiltin(foo);

becomes internally:
void foo(int) { }
..
(void) (foo.0) (void) = ((void) (*)(void) foo);
__mybuiltin(foo.0);

This is why I am not being able to get my function name from the tree
of the builtin function call. I guess I need to parse the tree of the
current function to find the value of foo.0.

I am however open to suggestions.

> Andrew.
>



-- 
Paulo Jorge Matos - pocmatos at gmail.com
http://www.pmatos.net