Re: N00b questions :\

["Janus N." Tøndering <janus () bananus dk>]

On Sun, 2003-05-25 at 03:42, northern snowfall wrote:
> > GCC sometimes allocates more memory for each variable on the stack than
> > is actually requested. I have no idea exactly why and what is does --
> > but I assume it is some small optimization.
> FYI, compilers (are supposed to) align memory to the requirement of the
> underlying architecture. Most processors will throw an alignment_error
> exception if an opcode attempts to pass an unaligned address to it.
> This is done simply by padding the stack so that each auto variable is
> given a properly aligned memory address.
Oh yeah ... true. But isn't this 32-bit on the ia32? GCC 3.x allocates
way more than is neccessary to have it aligned. The vulndev-2 buffer of
90 bytes should be 92 right? But gcc allocates 108. Why does it do this
extra padding then?

Janus
-- 
Janus N. Tøndering <janus () bananus dk>