On Sat, 2008-03-15 at 16:05 +0100, Vincent Bernat wrote: > OoO Pendant le journal télévisé du jeudi 13 mars 2008, vers 20:00, Russ > Allbery <email@example.com> disait: > > > (I *have* heard of architectures in common use where a pointer to data > > is a different size than a pointer to a function, but function > > pointers are very rarely passed to variadic functions.) > > Which architectures are like this? http://en.wikipedia.org/wiki/Harvard_architecture lists a number. However, any POSIX system requires function pointers to be no larger than data pointers so that the dlsym() function can work. Itanium natively requires functions to be identified by a 64-bit instruction pointer plus a 64-bit global data pointer. The ABI defines function pointers to point to these 128-bit data structures. Ben. -- Ben Hutchings Life is like a sewer: what you get out of it depends on what you put into it.
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