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e3726b05 | 1 | /* longjmp for i386. |
c57abfa7 UD |
2 | Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. | |
e3726b05 | 4 | |
c57abfa7 UD |
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. | |
e3726b05 | 9 | |
c57abfa7 UD |
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. | |
e3726b05 | 14 | |
c57abfa7 UD |
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. */ | |
e3726b05 RM |
19 | |
20 | #include <sysdep.h> | |
21 | #define _ASM | |
5107cf1d | 22 | #include <bits/setjmp.h> |
e3726b05 RM |
23 | |
24 | ENTRY (__longjmp) | |
25 | movl 4(%esp), %ecx /* User's jmp_buf in %ecx. */ | |
26 | movl 8(%esp), %eax /* Second argument is return value. */ | |
27 | /* Restore registers. */ | |
44c8d1a2 RM |
28 | movl (JB_BX*4)(%ecx), %ebx |
29 | movl (JB_SI*4)(%ecx), %esi | |
30 | movl (JB_DI*4)(%ecx), %edi | |
31 | movl (JB_BP*4)(%ecx), %ebp | |
32 | movl (JB_SP*4)(%ecx), %esp | |
e3726b05 | 33 | /* Jump to saved PC. */ |
44c8d1a2 | 34 | movl (JB_PC*4)(%ecx), %ecx |
e3726b05 | 35 | jmp *%ecx |
6ed0492f | 36 | END (__longjmp) |