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Write embedding zone using Reed-Solomon.

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* Makefile.util.def (grub-setup): Add grub-core/lib/reed_solomon.c.
	* grub-core/Makefile.am (rs_decoder.S): New target.
	(kern/i386/pc/startup.S): Depend on rs_decoder.S.
	* grub-core/kern/i386/pc/startup.S (reed_solomon_redundancy): New field.
	(multiboot): Move to RS part.
	(post_reed_solomon): New label.
	(grub_boot_drive): Move to non-RS part since it's modified in memory
	on boot.
	Include rs_decoder.S.
	* grub-core/lib/reed_solomon.c: New file.
	* include/grub/offsets.h (GRUB_KERNEL_I386_PC_REED_SOLOMON_REDUNDANCY):
	New definition.
	(GRUB_KERNEL_I386_PC_MULTIBOOT_SIGNATURE): Removed.
	(GRUB_KERNEL_I386_PC_RAW_SIZE): Updated.
	(GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_PART): New definition.
	* include/grub/partition.h (grub_partition_map): Change prototype of
	embed to allow returning additional sectors.
	* include/grub/reed_solomon.h: New file.
	* util/grub-setup.c (setup): Handle Reed-Solomon.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-09-29 21:33:38 +02:00
commit b65830fae1
11 changed files with 687 additions and 65 deletions
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Makefile.util.def
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@ -244,6 +244,7 @@ program = {
common = util/grub-setup.c;
common = util/raid.c;
common = util/lvm.c;
common = grub-core/lib/reed_solomon.c;
sparc64_ieee1275 = util/ieee1275/ofpath.c;