On Tue, Dec 01, 2009 at 12:57:27PM +0000, Paul Brook wrote: > > You might want to have a 'static uint8_t zero_length_malloc[0]' and > > return that instead of the magic cookie '1'. Makes the code more > > readable IMHO and you'll also have symbol in gdb when debugging qemu. > > Having multiple malloc return the same pointer sounds like a really bad idea. And why's that?
Keep in mind that *any* dereference over that address is a bug. Actually, I very much like Gerd's idea to unmap that address, so the bug won't hide from us in any circumnstances.