On Tue, Aug 4, 2009 at 10:56 PM, Robert Millan<r...@aybabtu.com> wrote: > On Mon, Aug 03, 2009 at 02:10:18PM +0200, Vladimir 'phcoder' Serbinenko wrote: >> +#define GRUB_MULTIBOOT_STACK_SIZE 4096 >> [...] >> +#define stack_addr(x) ((void *) ((x) + code_size + >> cmdline_length + boot_loader_name_length + sizeof (struct >> grub_multiboot_info) + mmap_length + GRUB_MULTIBOOT_STACK_SIZE)) > > What's this stack used for? Only to set %esp to something that can be used by OS for small things before they setup their own stack. By multiboot specification OS is required to setup its stack itself but I suppose many OSes may have done a mistake of having few push'es before real stack setup > > -- > Robert Millan > > The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and > how) you may access your data; but nobody's threatening your freedom: we > still allow you to remove your data and not access it at all." > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > http://lists.gnu.org/mailman/listinfo/grub-devel >
-- Regards Vladimir 'phcoder' Serbinenko Personal git repository: http://repo.or.cz/w/grub2/phcoder.git _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel
