2007-10-31 Robert Millan <rmh@aybabtu.com>

* configure.ac: Add `i386-linuxbios' to the list of supported targets.

	* conf/i386-linuxbios.rmk: New file.

	* kern/i386/pc/hardware.c: Likewise.
	* term/i386/pc/at_keyboard.c: Likewise.
	* term/i386/pc/vga_text.c: Likewise.

	* include/grub/i386/linuxbios/boot.h: Likewise.
	* include/grub/i386/linuxbios/console.h: Likewise.
	* include/grub/i386/linuxbios/init.h: Likewise.
	* include/grub/i386/linuxbios/kernel.h: Likewise.
	* include/grub/i386/linuxbios/loader.h: Likewise.
	* include/grub/i386/linuxbios/memory.h: Likewise.
	* include/grub/i386/linuxbios/serial.h: Likewise.
	* include/grub/i386/linuxbios/time.h: Likewise.

	* kern/i386/linuxbios/init.c: Likewise.
	* kern/i386/linuxbios/startup.S: Likewise.
	* kern/i386/linuxbios/table.c: Likewise.

kern/i386/linuxbios/startup.S

@@ -0,0 +1,77 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 1999,2000,2001,2002,2003,2005,2006,2007 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/>.
+ */
+
+#define ASM_FILE	1
+
+#include <grub/symbol.h>
+#include <grub/machine/memory.h>
+#include <grub/cpu/linux.h>
+#include <multiboot.h>
+#include <multiboot2.h>
+
+/*
+ * Note: GRUB is compiled with the options -mrtd and -mregparm=3.
+ *       So the first three arguments are passed in %eax, %edx, and %ecx,
+ *       respectively, and if a function has a fixed number of arguments
+ *       and the number if greater than three, the function must return
+ *       with "ret $N" where N is ((the number of arguments) - 3) * 4.
+ */
+
+	.file	"startup.S"
+	.text
+	.globl	start, _start
+
+#if 0
+/*
+ *  Support for booting GRUB from a Multiboot boot loader (e.g. GRUB itself).
+ */
+multiboot_header:
+	/* magic */
+	.long	0x1BADB002
+	/* flags */
+	.long	0
+	/* checksum */
+	.long	-0x1BADB002
+#endif
+
+start:
+_start:
+	/* initialize the stack */
+	movl $GRUB_MEMORY_MACHINE_PROT_STACK, %esp
+
+	/* jump to the main body of C code */
+	jmp EXT_C(grub_main)
+
+/*
+ *  This call is special...  it never returns...  in fact it should simply
+ *  hang at this point!
+ */
+FUNCTION(grub_stop)
+	hlt
+	jmp EXT_C(grub_stop)
+
+/*
+ *  prot_to_real and associated structures (but NOT real_to_prot, that is
+ *  only needed for BIOS gates).
+ */
+#include "../realmode.S"
+
+/*
+ *  Routines needed by Linux and Multiboot loaders.
+ */
+#include "../loader.S"