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2008-08-02 Robert Millan <rmh@aybabtu.com>

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* disk/memdisk.c (memdisk_size): Don't initialize.
        (GRUB_MOD_INIT(memdisk)): Find memdisk using grub_module_iterate().

        * include/grub/i386/pc/kernel.h
        (GRUB_KERNEL_MACHINE_MEMDISK_IMAGE_SIZE): Remove macro.
        (GRUB_KERNEL_MACHINE_PREFIX, GRUB_KERNEL_MACHINE_DATA_END): Shift.
        (grub_memdisk_image_size, grub_arch_memdisk_addr)
        (grub_arch_memdisk_size): Remove.

        * include/grub/kernel.h (struct grub_module_header): Remove `offset'
        field (was only used to transfer a constant).  Add `type' field to
        support multiple module types.
        (grub_module_iterate): New function.

        * kern/device.c (grub_device_open): Do not hide error messages
        when grub_disk_open() fails.  Use grub_print_error() instead.

        * kern/i386/pc/init.c (grub_arch_modules_addr)
        (grub_arch_memdisk_size): Remove functions.
        (grub_arch_modules_addr): Return the module address in high memory
        (now that it isn't copied anymore).

        * kern/i386/pc/startup.S (grub_memdisk_image_size): Remove variable.
        (codestart): Don't add grub_memdisk_image_size to %ecx in LZMA
        decompression routine (grub_total_module_size already includes that
        now).  Don't copy modules back to low memory.

        * kern/main.c: Include `<grub/mm.h>'.
        (grub_load_modules): Split out (and use) ...
        (grub_module_iterate): ... this function, which iterates through
        module objects and runs a hook.
        Comment out grub_mm_init_region() call, as it would cause non-ELF
        modules to be overwritten.

        * util/i386/pc/grub-mkimage.c (generate_image): Instead of appending
        the memdisk image in its own region, make it part of the module list.
        * util/elf/grub-mkimage.c (options): Add "memdisk"|'m' option.
        (main): Parse --memdisk|-m option, and pass user-provided path as
        parameter to generate_image().
        (add_segments): Pass `memdisk_path' down to load_modules().
        (load_modules): Embed memdisk image in module section when requested.
        * util/i386/efi/grub-mkimage.c (make_mods_section): Initialize
        `header.type' instead of `header.offset'.

        * conf/powerpc-ieee1275.rmk (pkglib_MODULES): Add `memdisk.mod'.
        (memdisk_mod_SOURCES, memdisk_mod_CFLAGS)
        (memdisk_mod_LDFLAGS): New variables.
        * conf/i386-coreboot.rmk: Likewise.
        * conf/i386-ieee1275.rmk: Likewise.
This commit is contained in:
robertmh 2008-08-02 12:17:44 +00:00
parent a927cc7383
commit 3bd0a12aca
17 changed files with 368 additions and 79 deletions
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29
disk/memdisk.c
View file

@ -82,21 +82,30 @@ static struct grub_disk_dev grub_memdisk_dev =
GRUB_MOD_INIT(memdisk)
{
char *memdisk_orig_addr;
auto int hook (struct grub_module_header *);
int hook (struct grub_module_header *header)
{
if (header->type == OBJ_TYPE_MEMDISK)
{
char *memdisk_orig_addr;
memdisk_orig_addr = (char *) header + sizeof (struct grub_module_header);
memdisk_size = grub_arch_memdisk_size ();
if (! memdisk_size)
return;
grub_dprintf ("memdisk", "Found memdisk image at %p\n", memdisk_orig_addr);
memdisk_orig_addr = (char *) grub_arch_memdisk_addr ();
grub_dprintf ("memdisk", "Found memdisk image at %p\n", memdisk_orig_addr);
memdisk_size = header->size - sizeof (struct grub_module_header);
memdisk_addr = grub_malloc (memdisk_size);
memdisk_addr = grub_malloc (memdisk_size);
grub_dprintf ("memdisk", "Copying memdisk image to dynamic memory\n");
grub_memmove (memdisk_addr, memdisk_orig_addr, memdisk_size);
grub_dprintf ("memdisk", "Copying memdisk image to dynamic memory\n");
grub_memmove (memdisk_addr, memdisk_orig_addr, memdisk_size);
grub_disk_dev_register (&grub_memdisk_dev);
return 1;
}
grub_disk_dev_register (&grub_memdisk_dev);
return 0;
}
grub_module_iterate (hook);
}
GRUB_MOD_FINI(memdisk)