/* $OpenBSD: support.S,v 1.3 2022/03/22 06:51:12 miod Exp $ */
/*-
* Copyright (c) 2015-2020 Ruslan Bukin
* All rights reserved.
*
* Portions of this software were developed by SRI International and the
* University of Cambridge Computer Laboratory under DARPA/AFRL contract
* FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme.
*
* Portions of this software were developed by the University of Cambridge
* Computer Laboratory as part of the CTSRD Project, with support from the
* UK Higher Education Innovation Fund (HEIF).
*
* 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 AUTHOR 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 AUTHOR 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 "assym.h"
#include
#include
ENTRY(setjmp)
/* Store the stack pointer */
sd sp, 0(a0)
addi a0, a0, 8
/* Store the general purpose registers and ra */
sd s0, (0 * 8)(a0)
sd s1, (1 * 8)(a0)
sd s2, (2 * 8)(a0)
sd s3, (3 * 8)(a0)
sd s4, (4 * 8)(a0)
sd s5, (5 * 8)(a0)
sd s6, (6 * 8)(a0)
sd s7, (7 * 8)(a0)
sd s8, (8 * 8)(a0)
sd s9, (9 * 8)(a0)
sd s10, (10 * 8)(a0)
sd s11, (11 * 8)(a0)
sd ra, (12 * 8)(a0)
/* Return zero */
li a0, 0
ret
END(setjmp)
ENTRY(longjmp)
/* Restore the stack pointer */
ld sp, 0(a0)
addi a0, a0, 8
/* Restore the general purpose registers and ra */
ld s0, (0 * 8)(a0)
ld s1, (1 * 8)(a0)
ld s2, (2 * 8)(a0)
ld s3, (3 * 8)(a0)
ld s4, (4 * 8)(a0)
ld s5, (5 * 8)(a0)
ld s6, (6 * 8)(a0)
ld s7, (7 * 8)(a0)
ld s8, (8 * 8)(a0)
ld s9, (9 * 8)(a0)
ld s10, (10 * 8)(a0)
ld s11, (11 * 8)(a0)
ld ra, (12 * 8)(a0)
/* Return nonzero */
li a0, 1
ret
END(longjmp)