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/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. s390 version.
Copyright (C) 2000 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 Library General Public License as
published by the Free Software Foundation ; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
We cannot do it in C because it must be a tail-call, so frame-unwinding
in setjmp doesn't clobber the state restored by longjmp. */
#include <sysdep.h>
ENTRY(setjmp)
#ifdef PIC
/* We cannot use the PLT, because it requires that %r12 be set, but
we can't save and restore our caller's value. Instead, we do an
indirect jump through the GOT. */
basr %r1,0
.L0: al %r1,.L1 - .L0(0,%r1) /* get address of global offset table */
/* get address of __sigjmp_save from got */
l %r1,__sigjmp_save@GOT12(0,%r1)
lhi %r3,1 /* second argument of one */
br %r1
.L1: .long _GLOBAL_OFFSET_TABLE_ - .L0
#else
basr %r1,0
.L0: l %r1,.L1 - .L0(0,%r1) /* load address of __sigsetjmp */
lhi %r3,1 /* second argument of zero */
br %r1 /* branch to __sigsetjmp */
.L1: .long __sigsetjmp
#endif
END (setjmp)
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