glibc/sysdeps/alpha/setjmp.S
1993-12-23 06:27:57 +00:00

30 lines
1.2 KiB
ArmAsm

/* Copyright (C) 1992 Free Software Foundation, Inc.
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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <sysdep.h>
/* The function __setjmp_aux saves all the registers, but it can't
reliably access the stack or frame pointers, so we pass them in as
extra arguments. */
ENTRY (__setjmp)
lda $27, __setjmp_aux /* Load address to jump to. */
bis $15, $15, $17 /* Pass FP as 2nd arg. */
bis $30, $30, $18 /* Pass SP as 3nd arg. */
jmp $31, ($27), __setjmp_aux /* Call __setjmp_aux. */
.end __setjmp