glibc/sysdeps/m68k/bsd-setjmp.S
Andreas Jaeger 41bdb6e20c Update to LGPL v2.1.
2001-07-06  Paul Eggert  <eggert@twinsun.com>

	* manual/argp.texi: Remove ignored LGPL copyright notice; it's
	not appropriate for documentation anyway.
	* manual/libc-texinfo.sh: "Library General Public License" ->
	"Lesser General Public License".

2001-07-06  Andreas Jaeger  <aj@suse.de>

	* All files under GPL/LGPL version 2: Place under LGPL version
	2.1.
2001-07-06 04:58:11 +00:00

48 lines
1.6 KiB
ArmAsm

/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. m68k version.
Copyright (C) 1994, 1997 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 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, 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>
#ifdef MOTOROLA_SYNTAX
#define d0 %d0
#define d1 %d1
#define PUSH(reg) move.l reg, -(%sp)
#define POP(reg) move.l (%sp)+, reg
#else
#define PUSH(reg) movel reg, sp@-
#define POP(reg) movel sp@+, reg
#endif
ENTRY (setjmp)
POP (d0) /* Pop return PC. */
POP (d1) /* Pop jmp_buf argument. */
pea 1 /* Push second argument of one. */
PUSH (d1) /* Push back first argument. */
PUSH (d0) /* Push back return PC. */
#ifdef PIC
bra.l C_SYMBOL_NAME (__sigsetjmp@PLTPC)
#else
jmp C_SYMBOL_NAME (__sigsetjmp)
#endif
END (setjmp)