| Benny Prijono | dd859a6 | 2005-11-01 16:42:51 +0000 | [diff] [blame] | 1 | /* longjmp for i386. |
| 2 | Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Library General Public License as |
| 7 | published by the Free Software Foundation; either version 2 of the |
| 8 | License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library 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 GNU |
| 13 | Library General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Library General Public |
| 16 | License along with the GNU C Library; see the file COPYING.LIB. If not, |
| 17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 18 | Boston, MA 02111-1307, USA. */ |
| 19 | |
| 20 | #define _ASM |
| 21 | #define _SETJMP_H |
| 22 | #define PJ_LINUX_KERNEL 1 |
| 23 | #include <pj/compat/setjmp.h> |
| 24 | |
| 25 | .global __longjmp |
| 26 | .type __longjmp,%function |
| 27 | .align 4 |
| 28 | __longjmp: |
| 29 | movl 4(%esp), %ecx /* User's jmp_buf in %ecx. */ |
| 30 | movl 8(%esp), %eax /* Second argument is return value. */ |
| 31 | /* Save the return address now. */ |
| 32 | movl (JB_PC*4)(%ecx), %edx |
| 33 | /* Restore registers. */ |
| 34 | movl (JB_BX*4)(%ecx), %ebx |
| 35 | movl (JB_SI*4)(%ecx), %esi |
| 36 | movl (JB_DI*4)(%ecx), %edi |
| 37 | movl (JB_BP*4)(%ecx), %ebp |
| 38 | movl (JB_SP*4)(%ecx), %esp |
| 39 | /* Jump to saved PC. */ |
| 40 | jmp *%edx |
| 41 | .size __longjmp,.-__longjmp |
| 42 | |