xref: /src/lib/libc/arch/aarch64/gen/sigsetjmp.S

/* $NetBSD: sigsetjmp.S,v 1.2 2018/02/12 22:31:04 jakllsch Exp $ */

/*-
 * Copyright (c) 2014 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Matt Thomas of 3am Software Foundry.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <machine/asm.h>
#include "assym.h"

#if (_JB_MAGIC_AARCH64__SETJMP ^ _JB_MAGIC_AARCH64_SETJMP) != 1
#error _JB_MAGIC botch
#endif

/* LINTSTUB: int __sigsetjmp14(sigjmp_buf *, int); */

ENTRY(__sigsetjmp14)
	cbnz	w1, _C_LABEL(__setjmp14)
	b	_C_LABEL(_setjmp)
END(__sigsetjmp14)

/* LINTSTUB: int __sigsetlong14(sigjmp_buf *, int); */

ENTRY(__siglongjmp14)
	ldr	x3, [x0, #_JB_MAGIC]
	tbnz	x3, #0, _C_LABEL(__longjmp14)
	b	_C_LABEL(_longjmp)
END(__siglongjmp14)