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2010-01-07 Robert Millan <rmh.grub@aybabtu.com>

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Reset Multiboot 2 support.  New loader implements the draft in
	/branches/multiboot2 and shares as much code as possible with the
	production Multiboot 1 implementation.
	
	* loader/ieee1275/multiboot2.c: Remove file.  Update all users.
	* loader/multiboot2.c: Likewise.
	* loader/i386/multiboot_helper.S: Likewise.
	* include/multiboot2.h: Replace with latest version from the draft
	in /branches/multiboot2.
	
	* conf/i386-coreboot.rmk (multiboot_mod_SOURCES): Remove
	`loader/i386/multiboot_helper.S', `loader/i386/pc/multiboot2.c'
	and `loader/multiboot2.c'.
	(pkglib_MODULES): Add `multiboot2.mod'.
	(multiboot2_mod_SOURCES): New variable.
	(multiboot2_mod_LDFLAGS): Likewise.
	(multiboot2_mod_CFLAGS): Likewise.  Define `GRUB_USE_MULTIBOOT2'.
	
	* conf/i386-pc.rmk: Likewise.
	
	* conf/powerpc-ieee1275.rmk (pkglib_MODULES): Remove `multiboot.mod'.
	(multiboot_mod_SOURCES): Remove variable.
	(multiboot_mod_LDFLAGS): Likewise.
	(multiboot_mod_CFLAGS): Likewise.
	
	* include/grub/multiboot.h [GRUB_USE_MULTIBOOT2]: Include
	`<multiboot2.h>' instead of `<multiboot.h>'.
	[GRUB_USE_MULTIBOOT2] (MULTIBOOT_BOOTLOADER_MAGIC)
	(MULTIBOOT_HEADER_MAGIC): New macros.
	
	* loader/multiboot_loader.c (module_version_status): Remove variable.
	(find_multi_boot2_header): Remove function.
	(grub_cmd_multiboot_loader): Remove Multiboot 2 / Multiboot 1 selection
	logic.  Always check for the Multiboot version we're compiling for.
	(grub_cmd_module_loader): Likewise.
	[GRUB_USE_MULTIBOOT2] (GRUB_MOD_INIT(multiboot)): Register `multiboot2'
	command instead of `multiboot'.
This commit is contained in:
Robert Millan 2010-01-07 21:05:25 +00:00
parent 5d2c52b8ca
commit bc8b32b3ec
10 changed files with 266 additions and 823 deletions
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43
loader/i386/multiboot_helper.S
View file

@ -1,43 +0,0 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2005,2006,2007,2008,2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/symbol.h>
#include <multiboot.h>
#include <multiboot2.h>
.p2align 2 /* force 4-byte alignment */
/*
* This starts the multiboot 2 kernel.
*/
FUNCTION(grub_multiboot2_real_boot)
/* Push the entry address on the stack. */
pushl %eax
/* Move the address of the multiboot information structure to ebx. */
movl %edx,%ebx
/* Interrupts should be disabled. */
cli
/* Move the magic value into eax and jump to the kernel. */
movl $MULTIBOOT2_BOOTLOADER_MAGIC,%eax
popl %ecx
cld
jmp *%ecx