1 /* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. i386 version.
2 Copyright (C) 1995, 1996, 1997, 2000, 2001 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
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 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
20 .type setjmp,%function
24 movl %ebx, (0 *4)(%eax)
25 movl %esi, (1 *4)(%eax)
26 movl %edi, (2 *4)(%eax)
27 /* Save SP as it will be after we return. */
29 movl %ecx, (4 *4)(%eax)
30 /* Save PC we are returning to now. */
32 movl %ecx, (5 *4)(%eax)
33 /* Save caller's frame pointer. */
34 movl %ebp, (3 *4)(%eax)
36 /* Call __sigjmp_save. */
40 /* We cannot use the PLT, because it requires that %ebx be set, but
41 we can't save and restore our caller's value. Instead, we do an
42 indirect jump through the GOT, using for the temporary register
43 %ecx, which is call-clobbered. */
46 addl $_GLOBAL_OFFSET_TABLE_+[.-here2], %ecx
47 movl __sigjmp_save @GOT (%ecx), %ecx