14.02.2016 00:20, Wink Saville пишет:
> I'm processing multiboot_tag_mmap and the multiboot_mmap_entry.zero
> isn't zero. As best as I can tell grub isn't initializing it. Here is
> the code from grub-core/loader/i386/multiboot_mbi.c:
>
> /* Helper for grub_fill_multiboot_mmap. */
> static int
> grub_fill_multiboot_mmap_iter (grub_uint64_t addr, grub_uint64_t size,
> grub_memory_type_t type, void *data)
> {
> struct multiboot_mmap_entry **mmap_entry = data;
>
> (*mmap_entry)->addr = addr;
> (*mmap_entry)->len = size;
> (*mmap_entry)->type = type;
> (*mmap_entry)->size = sizeof (struct multiboot_mmap_entry) - sizeof
> ((*mmap_entry)->size);
> (*mmap_entry)++;
>
> return 0;
> }
>
> And similar code in grub-core/loader/multiboot_mbi2.c:
>
> /* Helper for grub_fill_multiboot_mmap. */
> static int
> grub_fill_multiboot_mmap_iter (grub_uint64_t addr, grub_uint64_t size,
> grub_memory_type_t type, void *data)
> {
> struct multiboot_mmap_entry **mmap_entry = data;
>
> (*mmap_entry)->addr = addr;
> (*mmap_entry)->len = size;
> (*mmap_entry)->type = type;
> (*mmap_entry)++;
>
> return 0;
> }
>
> And I'd expect to see:
>
> (*mmap_entry)->zero = 0;
>
> Is there a reason its not being zeroed?
>
Because it does not exist?
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