diff options
Diffstat (limited to 'libc/sysdeps/linux/i386/__longjmp.S')
-rw-r--r-- | libc/sysdeps/linux/i386/__longjmp.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/i386/__longjmp.S b/libc/sysdeps/linux/i386/__longjmp.S new file mode 100644 index 000000000..484a564c3 --- /dev/null +++ b/libc/sysdeps/linux/i386/__longjmp.S @@ -0,0 +1,40 @@ +/* longjmp for i386. + Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#define _ASM +#define _SETJMP_H +#include <bits/setjmp.h> + +.globl __longjmp; +.type __longjmp,@function +.align 4; \ +__longjmp: + movl 4(%esp), %ecx /* User's jmp_buf in %ecx. */ + movl 8(%esp), %eax /* Second argument is return value. */ + /* Save the return address now. */ + movl (JB_PC*4)(%ecx), %edx + /* Restore registers. */ + movl (JB_BX*4)(%ecx), %ebx + movl (JB_SI*4)(%ecx), %esi + movl (JB_DI*4)(%ecx), %edi + movl (JB_BP*4)(%ecx), %ebp + movl (JB_SP*4)(%ecx), %esp + /* Jump to saved PC. */ + jmp *%edx +.size __longjmp,.-__longjmp; |