2012-03-23 16:37:31 +00:00
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/* setjmp for s390, ELF version.
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2013-01-02 19:01:50 +00:00
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Copyright (C) 2000-2013 Free Software Foundation, Inc.
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2000-08-02 15:15:00 +00:00
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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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2001-07-06 04:58:11 +00:00
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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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2000-08-02 15:15:00 +00:00
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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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2001-07-06 04:58:11 +00:00
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Lesser General Public License for more details.
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2000-08-02 15:15:00 +00:00
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2001-07-06 04:58:11 +00:00
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You should have received a copy of the GNU Lesser General Public
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2012-02-09 23:18:22 +00:00
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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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2000-08-02 15:15:00 +00:00
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#include <sysdep.h>
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2012-03-23 16:37:31 +00:00
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#define _ASM
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#define _SETJMP_H
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2000-08-02 15:15:00 +00:00
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#include <bits/setjmp.h>
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2012-03-23 16:37:31 +00:00
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/* We include the BSD entry points here as well but we make
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them weak. */
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ENTRY (setjmp)
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.weak C_SYMBOL_NAME (setjmp)
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lhi %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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.weak C_SYMBOL_NAME (_setjmp)
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lhi %r3,0 /* 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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lhi %r3,0 /* 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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2000-08-02 15:15:00 +00:00
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ENTRY(__sigsetjmp)
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2012-03-23 16:37:31 +00:00
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.Linternal_sigsetjmp:
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2005-12-20 07:21:59 +00:00
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#ifdef PTR_MANGLE
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stm %r6,%r13,0(%r2) /* store registers in jmp_buf */
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lr %r4,%r14
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2006-01-02 20:57:43 +00:00
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lr %r5,%r15
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PTR_MANGLE (%r4, %r1)
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PTR_MANGLE2 (%r5, %r1)
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stm %r4,%r5,32(%r2)
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2005-12-20 07:21:59 +00:00
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#else
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2000-08-02 15:15:00 +00:00
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stm %r6,%r15,0(%r2) /* store registers in jmp_buf */
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2005-12-20 07:21:59 +00:00
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#endif
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2001-03-16 09:57:45 +00:00
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std %f4,40(%r2)
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std %f6,48(%r2)
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2005-12-20 07:21:59 +00:00
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#if defined NOT_IN_libc && defined IS_IN_rtld
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/* In ld.so we never save the signal mask. */
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lhi %r2,0
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br %r14
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#elif defined PIC
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2000-08-02 15:15:00 +00:00
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/* We cannot use the PLT, because it requires that %r12 be set, but
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we can't save and restore our caller's value. Instead, we do an
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indirect jump through the GOT. */
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basr %r1,0
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.L0: al %r1,.L1 - .L0(0,%r1) /* get address of global offset table */
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/* get address of __sigjmp_save from got */
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l %r1,__sigjmp_save@GOT12(0,%r1)
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br %r1
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.L1: .long _GLOBAL_OFFSET_TABLE_ - .L0
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#else
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basr %r1,0
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.L0: l %r1,.L1-.L0(0,%r1) /* load address of __sigjmp_save */
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br %r1 /* tail-call __sigjmp_save */
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2012-03-23 16:37:31 +00:00
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.L1: .long __sigjmp_save
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2000-08-02 15:15:00 +00:00
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#endif
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END (__sigsetjmp)
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