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- /*
- * 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)
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