1 /* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. s390 version.
2 Copyright (C) 2000, 2001 Free Software Foundation, Inc.
3 Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
4 This file is part of the GNU C Library.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
20 /* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
21 We cannot do it in C because it must be a tail-call, so frame-unwinding
22 in setjmp doesn't clobber the state restored by longjmp. */
28 /* We cannot use the PLT, because it requires that %r12 be set, but
29 we can't save and restore our caller's value. Instead, we do an
30 indirect jump through the GOT. */
32 .L0: al %r1,.L1 - .L0(0,%r1) /* get address of global offset table */
33 /* get address of __sigjmp_save from got */
34 l %r1,__sigjmp_save@GOT12(0,%r1)
35 lhi %r3,1 /* second argument of one */
37 .L1: .long _GLOBAL_OFFSET_TABLE_ - .L0
40 .L0: l %r1,.L1 - .L0(0,%r1) /* load address of __sigsetjmp */
41 lhi %r3,1 /* second argument of zero */
42 br %r1 /* branch to __sigsetjmp */
43 .L1: .long __sigsetjmp