| /* setjmp for 64 bit S/390, ELF version. |
| Copyright (C) 2001-2018 Free Software Foundation, Inc. |
| Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). |
| 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 Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <sysdep.h> |
| #define _ASM |
| #define _SETJMP_H |
| #include <bits/setjmp.h> |
| #include <shlib-compat.h> |
| #include <stap-probe.h> |
| |
| #if !IS_IN (rtld) && defined SHARED \ |
| && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) |
| # define NEED_COMPAT_SYMBOLS 1 |
| /* We need a unique name in case of symbol versioning. */ |
| # define setjmp __v1setjmp |
| # define _setjmp __v1_setjmp |
| # define __sigsetjmp __v1__sigsetjmp |
| #else |
| # define NEED_COMPAT_SYMBOLS 0 |
| #endif |
| |
| /* We include the BSD entry points here as well. */ |
| ENTRY (setjmp) |
| lghi %r3,1 /* Second argument of one. */ |
| j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */ |
| END (setjmp) |
| |
| /* Binary compatibility entry point. */ |
| ENTRY(_setjmp) |
| slgr %r3,%r3 /* Second argument of zero. */ |
| j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */ |
| END (_setjmp) |
| #if NEED_COMPAT_SYMBOLS |
| strong_alias (_setjmp, __GI__setjmp) |
| #else |
| libc_hidden_def (_setjmp) |
| #endif |
| |
| ENTRY(__setjmp) |
| slgr %r3,%r3 /* Second argument of zero. */ |
| j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */ |
| END (__setjmp) |
| |
| ENTRY(__sigsetjmp) |
| .Linternal_sigsetjmp: |
| /* setjmp probe expects sig/setjmp first argument (8@%r2), second |
| argument (-8@%r3) and target address (8@%r14). */ |
| LIBC_PROBE (setjmp, 3, 8@%r2, -4@%r3, 8@%r14) |
| #ifdef PTR_MANGLE |
| stmg %r6,%r13,0(%r2) /* Store registers in jmp_buf. */ |
| lgr %r4,%r14 |
| lgr %r5,%r15 |
| PTR_MANGLE (%r4, %r1) |
| PTR_MANGLE2 (%r5, %r1) |
| stmg %r4,%r5,64(%r2) |
| #else |
| stmg %r6,%r15,0(%r2) /* Store registers in jmp_buf. */ |
| #endif |
| std %f8,80(%r2) |
| std %f9,88(%r2) |
| std %f10,96(%r2) |
| std %f11,104(%r2) |
| std %f12,112(%r2) |
| std %f13,120(%r2) |
| std %f14,128(%r2) |
| std %f15,136(%r2) |
| #if IS_IN (rtld) |
| /* In ld.so we never save the signal mask. */ |
| lghi %r2,0 |
| br %r14 |
| #elif defined PIC |
| jg __sigjmp_save@PLT /* Branch to PLT of __sigsetjmp. */ |
| #else |
| jg __sigjmp_save |
| #endif |
| END (__sigsetjmp) |
| #if NEED_COMPAT_SYMBOLS |
| strong_alias (__sigsetjmp, __GI___sigsetjmp) |
| #else |
| libc_hidden_def (__sigsetjmp) |
| #endif |
| |
| #if NEED_COMPAT_SYMBOLS |
| /* In glibc release 2.19 new versions of setjmp-functions were introduced, |
| but were reverted before 2.20. Thus both versions are the same function. */ |
| |
| # undef setjmp |
| # undef _setjmp |
| # undef __sigsetjmp |
| |
| strong_alias (__v1setjmp, __v2setjmp); |
| versioned_symbol (libc, __v1setjmp, setjmp, GLIBC_2_0); |
| compat_symbol (libc, __v2setjmp, setjmp, GLIBC_2_19); |
| |
| strong_alias (__v1_setjmp, __v2_setjmp); |
| versioned_symbol (libc, __v1_setjmp, _setjmp, GLIBC_2_0); |
| compat_symbol (libc, __v2_setjmp, _setjmp, GLIBC_2_19); |
| |
| strong_alias (__v1__sigsetjmp, __v2__sigsetjmp); |
| versioned_symbol (libc, __v1__sigsetjmp, __sigsetjmp, GLIBC_2_0); |
| compat_symbol (libc, __v2__sigsetjmp, __sigsetjmp, GLIBC_2_19); |
| #endif /* NEED_COMPAT_SYMBOLS */ |