| /* startup.S - bootstrap GRUB itself */ |
| /* |
| * GRUB -- GRand Unified Bootloader |
| * Copyright (C) 2013 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 <config.h> |
| #include <grub/symbol.h> |
| |
| .file "startup.S" |
| .text |
| .globl start, _start |
| .code64 |
| |
| start: |
| _start: |
| leaq LOCAL(stack_end), %rsp |
| movq %rsi, EXT_C(grub_xen_start_page_addr)(%rip) |
| |
| andq $~0xf, %rsp |
| call EXT_C(grub_main) |
| /* Doesn't return. */ |
| |
| .bss |
| .space (1 << 22) |
| LOCAL(stack_end): |
