grub-core/tests/boot/linux.init-ppc.S

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2012  Free Software Foundation, Inc.
   4  *
   5  *  GRUB is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #define SYSCALL_WRITE 4
  20 #define SYSCALL_RESET 88
  21 #define SYSCALL_EXIT 1
  22
  23 #define STDOUT 1
  24 #define SHUTDOWN_MAGIC1 0xfee1dead
  25 #define SHUTDOWN_MAGIC2 0x28121969
  26 #define SHUTDOWN_MAGIC3 0x4321fedc
  27
  28         .text
  29         .global start, _start, __start
  30 __start:
  31 _start:
  32 start:
  33         /* write.  */
  34         li %r0, SYSCALL_WRITE
  35         li %r3, STDOUT
  36         lis %r4, message@h
  37         ori %r4, %r4, message@l
  38         lis %r5, messageend@h
  39         ori %r5, %r5, messageend@l
  40         sub %r5, %r5, %r4
  41         sc
  42
  43         /* shutdown.  */
  44         li %r0, SYSCALL_RESET
  45         lis %r3, SHUTDOWN_MAGIC1@h
  46         ori %r3, %r3, SHUTDOWN_MAGIC1@l
  47         lis %r4, SHUTDOWN_MAGIC2@h
  48         ori %r4, %r4, SHUTDOWN_MAGIC2@l
  49         lis %r5, SHUTDOWN_MAGIC3@h
  50         ori %r5, %r5, SHUTDOWN_MAGIC3@l
  51         sc
  52
  53         /* exit(1). Shouldn't be reached.  */
  54         li %r0, SYSCALL_EXIT
  55         li %r3, 1
  56         sc
  57
  58         .data
  59 message:
  60         .ascii "Boot Test Passed Successfully\n" SUCCESSFUL_BOOT_STRING "\n"
  61 messageend: