1 /* setjmp for 64 bit S/390, ELF version.
2 Copyright (C) 2001-2014 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/>. */
23 #include <bits/setjmp.h>
24 #include <shlib-compat.h>
26 #if !defined IS_IN_rtld
27 # if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
28 /* we need a unique name in case of symbol versioning. */
29 # define __sigsetjmp __v1__sigsetjmp
30 # endif /* if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) */
31 #endif /* !defined IS_IN_rtld */
33 /* We include the BSD entry points here as well but we make
36 .weak C_SYMBOL_NAME (setjmp)
37 lghi %r3,1 /* Second argument of one. */
38 j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */
41 /* Binary compatibility entry point. */
43 .weak C_SYMBOL_NAME (_setjmp)
44 slgr %r3,%r3 /* Second argument of zero. */
45 j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */
47 libc_hidden_def (_setjmp)
50 slgr %r3,%r3 /* Second argument of zero. */
51 j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */
57 stmg %r6,%r13,0(%r2) /* Store registers in jmp_buf. */
61 PTR_MANGLE2 (%r5, %r1)
64 stmg %r6,%r15,0(%r2) /* Store registers in jmp_buf. */
75 /* In ld.so we never save the signal mask. */
79 jg __sigjmp_save@PLT /* Branch to PLT of __sigsetjmp. */
85 #if !defined IS_IN_rtld
86 # if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
87 /* In glibc release 2.19 new versions of setjmp-functions were introduced,
88 but were reverted before 2.20. Thus both versions are the same function. */
92 weak_alias (setjmp, __v1setjmp);
93 weak_alias (setjmp, __v2setjmp);
94 versioned_symbol (libc, __v1setjmp, setjmp, GLIBC_2_0);
95 compat_symbol (libc, __v2setjmp, setjmp, GLIBC_2_19);
97 weak_alias (_setjmp, __v1_setjmp);
98 weak_alias (_setjmp, __v2_setjmp);
99 versioned_symbol (libc, __v1_setjmp, _setjmp, GLIBC_2_0);
100 compat_symbol (libc, __v2_setjmp, _setjmp, GLIBC_2_19);
102 strong_alias (__v1__sigsetjmp, __v2__sigsetjmp);
103 versioned_symbol (libc, __v1__sigsetjmp, __sigsetjmp, GLIBC_2_0);
104 compat_symbol (libc, __v2__sigsetjmp, __sigsetjmp, GLIBC_2_19);
105 # endif /* if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) */
106 #endif /* if !defined IS_IN_rtld */