grub/kern/i386/coreboot/startup.S
robertmh eba0ce9f97 2008-08-14 Robert Millan <rmh@aybabtu.com>
* conf/common.rmk (bin_UTILITIES): Add `grub-mkelfimage'.
        (grub_mkelfimage_SOURCES): New variable.
        (util/elf/grub-mkimage.c_DEPENDENCIES): Likewise.

        * conf/i386-coreboot.rmk (bin_UTILITIES, grub_mkimage_SOURCES)
        (grub_mkimage_LDFLAGS, util/elf/grub-mkimage.c_DEPENDENCIES): Remove.
        * conf/powerpc-ieee1275.rmk: Likewise.
        * conf/i386-ieee1275.rmk: Likewise.

        * kern/ieee1275/init.c: Include `<grub/cpu/kernel.h>'.
        * kern/i386/coreboot/init.c: Likewise.

        * kern/i386/ieee1275/startup.S: Replace `<grub/machine/kernel.h>'
        with `<grub/cpu/kernel.h>'.
        (GRUB_KERNEL_MACHINE_PREFIX, GRUB_KERNEL_MACHINE_DATA_END): Renamed
        to ...
        (GRUB_KERNEL_CPU_PREFIX, GRUB_KERNEL_CPU_DATA_END): ... this.
        * kern/i386/coreboot/startup.S: Likewise.

        * include/grub/powerpc/ieee1275/kernel.h (GRUB_MOD_ALIGN)
        (GRUB_MOD_GAP): Remove.
        * include/grub/powerpc/kernel.h: New file.
        * include/grub/i386/ieee1275/kernel.h (GRUB_KERNEL_MACHINE_PREFIX)
        (GRUB_KERNEL_MACHINE_DATA_END): Remove.
        * include/grub/i386/kernel.h: New file.
        * include/grub/i386/coreboot/kernel.h (GRUB_MOD_ALIGN)
        (GRUB_MOD_GAP, GRUB_KERNEL_MACHINE_PREFIX)
        (GRUB_KERNEL_MACHINE_DATA_END): Remove.

        * util/ieee1275/grub-install.in (grub_mkimage): Initialize to use
        `grub-mkelfimage'.
        Use --directory when invoking grub_mkimage.

        * util/elf/grub-mkimage.c: Include `<grub/cpu/kernel.h>'.
        (add_segments): Replace GRUB_KERNEL_MACHINE_DATA_END and
        GRUB_KERNEL_MACHINE_PREFIX with GRUB_KERNEL_CPU_DATA_END
        and GRUB_KERNEL_CPU_PREFIX.
2008-08-14 18:59:33 +00:00

95 lines
2.4 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 <grub/cpu/kernel.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:
jmp codestart
/*
* This is a special data area at a fixed offset from the beginning.
*/
. = EXT_C(start) + GRUB_KERNEL_CPU_PREFIX
VARIABLE(grub_prefix)
/* to be filled by grub-mkimage */
/*
* Leave some breathing room for the prefix.
*/
. = EXT_C(start) + GRUB_KERNEL_CPU_DATA_END
#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
codestart:
/* 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"