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113 lines
3.7 KiB
ArmAsm
113 lines
3.7 KiB
ArmAsm
/* setjmp for 64 bit S/390, ELF version.
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Copyright (C) 2001-2016 Free Software Foundation, Inc.
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Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#define _ASM
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#define _SETJMP_H
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#include <bits/setjmp.h>
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#include <shlib-compat.h>
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#include <stap-probe.h>
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#if !IS_IN (rtld)
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# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
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/* we need a unique name in case of symbol versioning. */
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# define setjmp __v1setjmp
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# define _setjmp __v1_setjmp
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# define __sigsetjmp __v1__sigsetjmp
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# undef libc_hidden_def
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# define libc_hidden_def(name) strong_alias(_setjmp, __GI__setjmp)
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# endif /* if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) */
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#endif /* !IS_IN (rtld) */
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/* We include the BSD entry points here as well. */
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ENTRY (setjmp)
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lghi %r3,1 /* Second argument of one. */
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j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */
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END (setjmp)
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/* Binary compatibility entry point. */
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ENTRY(_setjmp)
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slgr %r3,%r3 /* Second argument of zero. */
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j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */
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END (_setjmp)
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libc_hidden_def (_setjmp)
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ENTRY(__setjmp)
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slgr %r3,%r3 /* Second argument of zero. */
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j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */
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END (__setjmp)
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ENTRY(__sigsetjmp)
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.Linternal_sigsetjmp:
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/* setjmp probe expects sig/setjmp first argument (8@%r2), second
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argument (-8@%r3) and target address (8@%r14). */
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LIBC_PROBE (setjmp, 3, 8@%r2, -4@%r3, 8@%r14)
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#ifdef PTR_MANGLE
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stmg %r6,%r13,0(%r2) /* Store registers in jmp_buf. */
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lgr %r4,%r14
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lgr %r5,%r15
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PTR_MANGLE (%r4, %r1)
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PTR_MANGLE2 (%r5, %r1)
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stmg %r4,%r5,64(%r2)
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#else
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stmg %r6,%r15,0(%r2) /* Store registers in jmp_buf. */
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#endif
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std %f8,80(%r2)
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std %f9,88(%r2)
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std %f10,96(%r2)
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std %f11,104(%r2)
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std %f12,112(%r2)
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std %f13,120(%r2)
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std %f14,128(%r2)
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std %f15,136(%r2)
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#if IS_IN (rtld)
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/* In ld.so we never save the signal mask. */
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lghi %r2,0
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br %r14
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#elif defined PIC
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jg __sigjmp_save@PLT /* Branch to PLT of __sigsetjmp. */
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#else
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jg __sigjmp_save
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#endif
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END (__sigsetjmp)
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#if !IS_IN (rtld)
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# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
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/* In glibc release 2.19 new versions of setjmp-functions were introduced,
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but were reverted before 2.20. Thus both versions are the same function. */
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# undef setjmp
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# undef _setjmp
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# undef __sigsetjmp
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strong_alias (__v1setjmp, __v2setjmp);
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versioned_symbol (libc, __v1setjmp, setjmp, GLIBC_2_0);
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compat_symbol (libc, __v2setjmp, setjmp, GLIBC_2_19);
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strong_alias (__v1_setjmp, __v2_setjmp);
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versioned_symbol (libc, __v1_setjmp, _setjmp, GLIBC_2_0);
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compat_symbol (libc, __v2_setjmp, _setjmp, GLIBC_2_19);
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strong_alias (__v1__sigsetjmp, __v2__sigsetjmp);
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versioned_symbol (libc, __v1__sigsetjmp, __sigsetjmp, GLIBC_2_0);
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compat_symbol (libc, __v2__sigsetjmp, __sigsetjmp, GLIBC_2_19);
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# endif /* if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) */
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#endif /* if !IS_IN (rtld) */
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