On Tue, 5 Nov 2013 08:05:37 +0100
Ingo Molnar <mi...@kernel.org> wrote:
> The macro magic I can think of would need to change the syntax of the
> function definition - for example that is how the SYSCALL_DEFINE*() macros
> work.
Or something like the EXPORT_SYMBOL(), but that wouldn't include the
size of the function. But using the name we could use kallsyms to see
if a probe is placed in a function that is blacklisted. Not very pretty
to do though.
>
> It would be nice if there was a GCC extension that marked a function
> noinline and allowed the emitting of the function's address (and size)
> into a special section - but I'm not aware of any such compiler feature
> today.
Yeah, I was wishing the same thing. Maybe I'll try to talk with the gcc
folks about adding such a feature. Something like
void __attribute__((save_loc_and_size(".section"))) function(void)
{
}
-- Steve
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