| /* |
| * GRUB -- GRand Unified Bootloader |
| * Copyright (C) 2003 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, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #define EXT_C(sym) sym |
| #define FUNCTION(x) .globl EXT_C(x) ; .type EXT_C(x), @function ; EXT_C(x): |
| |
| .file "setjmp.S" |
| |
| .text |
| |
| /* |
| * int setjmp (jmp_buf env) |
| */ |
| FUNCTION(setjmp) |
| pop %rsi /* Return address, and adjust the stack */ |
| xor %rax, %rax |
| movq %rbx, 0(%rdi) /* RBX */ |
| movq %rsp, 8(%rdi) /* RSP */ |
| push %rsi |
| movq %rbp, 16(%rdi) /* RBP */ |
| movq %r12, 24(%rdi) /* R12 */ |
| movq %r13, 32(%rdi) /* R13 */ |
| movq %r14, 40(%rdi) /* R14 */ |
| movq %r15, 48(%rdi) /* R15 */ |
| movq %rsi, 56(%rdi) /* RSI */ |
| ret |
| |
| /* |
| * int longjmp (jmp_buf env, int val) |
| */ |
| FUNCTION(longjmp) |
| movl %esi, %eax |
| movq (%rdi), %rbx |
| movq 8(%rdi), %rsp |
| movq 16(%rdi), %rbp |
| movq 24(%rdi), %r12 |
| movq 32(%rdi), %r13 |
| movq 40(%rdi), %r14 |
| movq 48(%rdi), %r15 |
| jmp *56(%rdi) |
| |
