------- Comment #6 from rguenth at gcc dot gnu dot org 2010-07-28 14:01 ------- (In reply to comment #4) > Subject: Re: casting of variadic function pointers to normal > function pointers causes segfaults on 64bit systems > > I was afraid of this answer. > However in my application, I have no clue which type of function pointer > is transferred. Thus, I should always cast to the variadic function > pointer in order to define the %al register? > > Cheers, Robert
That doesn't work either. You have to pass around some cookie that tells you the function prototype and cast to the appropriate one. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45106
