diff options
Diffstat (limited to 'grub-core/kern/i386/ieee1275/startup.S')
| -rw-r--r-- | grub-core/kern/i386/ieee1275/startup.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/grub-core/kern/i386/ieee1275/startup.S b/grub-core/kern/i386/ieee1275/startup.S new file mode 100644 index 0000000..62cf348 --- /dev/null +++ b/grub-core/kern/i386/ieee1275/startup.S @@ -0,0 +1,40 @@ +/* + * 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/>. + */ + +#include <grub/symbol.h> +#include <grub/offsets.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(grub_main) + |