2008-08-02 Robert Millan <rmh@aybabtu.com>
* 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
parent
a927cc7383
commit
3bd0a12aca
17 changed files with 368 additions and 79 deletions
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@ -97,19 +97,26 @@ load_note (Elf32_Phdr *phdr, FILE *out)
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void
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load_modules (grub_addr_t modbase, Elf32_Phdr *phdr, const char *dir,
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char *mods[], FILE *out)
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char *mods[], FILE *out, char *memdisk_path)
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{
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char *module_img;
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struct grub_util_path_list *path_list;
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struct grub_util_path_list *p;
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struct grub_module_info *modinfo;
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size_t offset;
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size_t total_module_size;
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size_t offset, total_module_size, memdisk_size;
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path_list = grub_util_resolve_dependencies (dir, "moddep.lst", mods);
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offset = sizeof (struct grub_module_info);
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total_module_size = sizeof (struct grub_module_info);
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if (memdisk_path)
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{
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memdisk_size = ALIGN_UP(grub_util_get_image_size (memdisk_path), 512);
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grub_util_info ("the size of memory disk is 0x%x", memdisk_size);
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total_module_size += memdisk_size + sizeof (struct grub_module_header);
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}
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for (p = path_list; p; p = p->next)
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{
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total_module_size += (grub_util_get_image_size (p->name)
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@ -135,7 +142,7 @@ load_modules (grub_addr_t modbase, Elf32_Phdr *phdr, const char *dir,
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mod_size = grub_util_get_image_size (p->name);
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header = (struct grub_module_header *) (module_img + offset);
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header->offset = grub_host_to_target32 (sizeof (*header));
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header->type = grub_host_to_target32 (OBJ_TYPE_ELF);
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header->size = grub_host_to_target32 (mod_size + sizeof (*header));
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grub_util_load_image (p->name, module_img + offset + sizeof (*header));
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@ -143,6 +150,20 @@ load_modules (grub_addr_t modbase, Elf32_Phdr *phdr, const char *dir,
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offset += sizeof (*header) + mod_size;
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}
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if (memdisk_path)
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{
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struct grub_module_header *header;
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header = (struct grub_module_header *) (module_img + offset);
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header->type = grub_cpu_to_le32 (OBJ_TYPE_MEMDISK);
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header->size = grub_cpu_to_le32 (memdisk_size + sizeof (*header));
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offset += sizeof (*header);
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grub_util_load_image (memdisk_path, module_img + offset);
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offset += memdisk_size;
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}
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/* Write the module data to the new segment. */
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grub_util_write_image_at (module_img, total_module_size,
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grub_host_to_target32 (phdr->p_offset), out);
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@ -158,7 +179,7 @@ load_modules (grub_addr_t modbase, Elf32_Phdr *phdr, const char *dir,
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}
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void
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add_segments (char *dir, char *prefix, FILE *out, int chrp, char *mods[])
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add_segments (char *dir, char *prefix, FILE *out, int chrp, char *mods[], char *memdisk_path)
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{
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Elf32_Ehdr ehdr;
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Elf32_Phdr *phdrs = NULL;
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@ -247,7 +268,7 @@ add_segments (char *dir, char *prefix, FILE *out, int chrp, char *mods[])
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phdr->p_offset = grub_host_to_target32 (ALIGN_UP (grub_util_get_fp_size (out),
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GRUB_TARGET_SIZEOF_LONG));
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load_modules (modbase, phdr, dir, mods, out);
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load_modules (modbase, phdr, dir, mods, out, memdisk_path);
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}
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if (chrp)
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@ -289,6 +310,7 @@ static struct option options[] =
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{
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{"directory", required_argument, 0, 'd'},
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{"prefix", required_argument, 0, 'p'},
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{"memdisk", required_argument, 0, 'm'},
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{"output", required_argument, 0, 'o'},
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{"help", no_argument, 0, 'h'},
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{"note", no_argument, 0, 'n'},
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@ -310,6 +332,7 @@ Make a bootable image of GRUB.\n\
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\n\
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-d, --directory=DIR use images and modules under DIR [default=%s]\n\
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-p, --prefix=DIR set grub_prefix directory\n\
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-m, --memdisk=FILE embed FILE as a memdisk image\n\
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-o, --output=FILE output a generated image to FILE\n\
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-h, --help display this message and exit\n\
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-n, --note add NOTE segment for CHRP Open Firmware\n\
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@ -329,13 +352,14 @@ main (int argc, char *argv[])
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char *output = NULL;
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char *dir = NULL;
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char *prefix = NULL;
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char *memdisk = NULL;
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int chrp = 0;
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progname = "grub-mkimage";
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while (1)
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{
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int c = getopt_long (argc, argv, "d:p:o:hVvn", options, 0);
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int c = getopt_long (argc, argv, "d:p:m:o:hVvn", options, 0);
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if (c == -1)
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break;
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@ -350,6 +374,16 @@ main (int argc, char *argv[])
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if (prefix)
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free (prefix);
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prefix = xstrdup (optarg);
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break;
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case 'm':
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if (memdisk)
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free (memdisk);
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memdisk = xstrdup (optarg);
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if (prefix)
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free (prefix);
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prefix = xstrdup ("(memdisk)/boot/grub");
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break;
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case 'h':
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usage (0);
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@ -381,7 +415,7 @@ main (int argc, char *argv[])
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if (! fp)
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grub_util_error ("cannot open %s", output);
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add_segments (dir ? : GRUB_LIBDIR, prefix, fp, chrp, argv + optind);
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add_segments (dir ? : GRUB_LIBDIR, prefix, fp, chrp, argv + optind, memdisk);
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fclose (fp);
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