2005-08-31 Yoshinori K. Okuji <okuji@enbug.org>
* DISTLIST: Replaced boot/powerpc/ieee1275/crt0.S and boot/powerpc/ieee1275/cmain.c with kern/powerpc/ieee1275/crt0.S and kern/powerpc/ieee1275/cmain.c, respectively. * boot/powerpc/ieee1275/crt0.S: Moved to ... * kern/powerpc/ieee1275/crt0.S: ... here. * boot/powerpc/ieee1275/cmain.c: Moved to ... * kern/powerpc/ieee1275/cmain.c: ... here. * conf/powerpc-ieee1275.rmk (grubof_SOURCES): Use kern/powerpc/ieee1275/crt0.S and kern/powerpc/ieee1275/cmain.c instead of boot/powerpc/ieee1275/crt0.S and boot/powerpc/ieee1275/cmain.c, respectively. * boot/i386/pc/boot.S (lba_mode): Do not store the total number of sectors. It was not used anyway.
This commit is contained in:
parent
09fc77a7a3
commit
48b671ff70
7 changed files with 37 additions and 20 deletions
43
kern/powerpc/ieee1275/crt0.S
Normal file
43
kern/powerpc/ieee1275/crt0.S
Normal file
|
@ -0,0 +1,43 @@
|
|||
/* crt0.S - Startup code for the PowerPC. */
|
||||
/*
|
||||
* GRUB -- GRand Unified Bootloader
|
||||
* Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
|
||||
*
|
||||
* This program 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 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program 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 this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
.extern __bss_start
|
||||
.extern _end
|
||||
|
||||
.text
|
||||
.align 2
|
||||
.globl _start
|
||||
_start:
|
||||
li 2, 0
|
||||
li 13, 0
|
||||
|
||||
/* Stage1 won't zero BSS for us. In other cases, why not do it again? */
|
||||
lis 6, (__bss_start - 4)@h
|
||||
ori 6, 6, (__bss_start - 4)@l
|
||||
lis 7, (_end - 4)@h
|
||||
ori 7, 7, (_end - 4)@l
|
||||
subf 7, 6, 7
|
||||
srwi 7, 7, 2 /* We store 4 bytes at a time. */
|
||||
mtctr 7
|
||||
2: stwu 2, 4(6) /* We know r2 is already 0 from above. */
|
||||
bdnz 2b
|
||||
|
||||
bl cmain
|
||||
1: b 1b
|
Loading…
Add table
Add a link
Reference in a new issue