grub/kern/i386/ieee1275/startup.S
robertmh dbb475a441 2008-01-23 Robert Millan <rmh@aybabtu.com>
* conf/i386-ieee1275.rmk (kernel_elf_SOURCES): Add `machine/loader.h'
        and `machine/memory.h'.
        (pkglib_MODULES): Add `multiboot.mod' and `_multiboot.mod'.
        (_multiboot_mod_SOURCES): New variable.
        (_multiboot_mod_CFLAGS): Likewise.
        (_multiboot_mod_LDFLAGS): Likewise.
        (multiboot_mod_SOURCES): Likewise.
        (multiboot_mod_CFLAGS): Likewise.
        (multiboot_mod_LDFLAGS): Likewise.

        * include/grub/i386/ieee1275/loader.h: New file.

        * include/grub/i386/ieee1275/machine.h: Likewise.

        * include/grub/i386/ieee1275/memory.h: Likewise.

        * include/grub/i386/pc/init.h (grub_os_area_addr): Remove (redundant)
        variable declaration.
        (grub_os_area_size): Likewise.

        * kern/i386/ieee1275/init.c (grub_os_area_addr, grub_os_area_size)
        (grub_lower_mem, grub_upper_mem): New variables.
        (grub_stop_floppy): New function (just to make
        grub_multiboot2_real_boot() happy).

        * kern/i386/ieee1275/startup.S: Include `<grub/machine/memory.h>',
        `<grub/cpu/linux.h>', `<multiboot.h>' and `<multiboot2.h>'.
        (grub_stop): New function.
        Include `"../realmode.S"' and `"../loader.S"'.

        * loader/multiboot_loader.c: Include `<grub/machine/machine.h>'.
        Replace `__i386__' #ifdefs with `GRUB_MACHINE_PCBIOS'.

        * loader/powerpc/ieee1275/multiboot2.c (grub_mb2_arch_boot): On i386,
        rely on grub_multiboot2_real_boot() for final boot.
2008-01-23 09:57:26 +00:00

61 lines
1.8 KiB
ArmAsm

/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2005,2006,2007,2008 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
start:
_start:
movl %eax, EXT_C(grub_ieee1275_entry_fn)
jmp EXT_C(cmain)
/*
* 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"