1*7ecb72feSdrahn/* $OpenBSD: Ovfork.S,v 1.1 2021/04/29 18:33:36 drahn Exp $ */ 2*7ecb72feSdrahn/* 3*7ecb72feSdrahn * Copyright (c) 2020 Brian Bamsch <bbamsch@google.com> 4*7ecb72feSdrahn * All rights reserved. 5*7ecb72feSdrahn * 6*7ecb72feSdrahn * Redistribution and use in source and binary forms, with or without 7*7ecb72feSdrahn * modification, are permitted provided that the following conditions 8*7ecb72feSdrahn * are met: 9*7ecb72feSdrahn * 1. Redistributions of source code must retain the above copyright 10*7ecb72feSdrahn * notice, this list of conditions and the following disclaimer. 11*7ecb72feSdrahn * 2. Redistributions in binary form must reproduce the above copyright 12*7ecb72feSdrahn * notice, this list of conditions and the following disclaimer in the 13*7ecb72feSdrahn * documentation and/or other materials provided with the distribution. 14*7ecb72feSdrahn * 3. Neither the name of the copyright holder nor the names of contributors 15*7ecb72feSdrahn * may be used to endorse or promote products derived from this software 16*7ecb72feSdrahn * without specific prior written permission. 17*7ecb72feSdrahn * 18*7ecb72feSdrahn * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND 19*7ecb72feSdrahn * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20*7ecb72feSdrahn * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21*7ecb72feSdrahn * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE 22*7ecb72feSdrahn * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23*7ecb72feSdrahn * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24*7ecb72feSdrahn * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25*7ecb72feSdrahn * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26*7ecb72feSdrahn * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27*7ecb72feSdrahn * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28*7ecb72feSdrahn * SUCH DAMAGE. 29*7ecb72feSdrahn */ 30*7ecb72feSdrahn 31*7ecb72feSdrahn#include "SYS.h" 32*7ecb72feSdrahn 33*7ecb72feSdrahnSYSENTRY_HIDDEN(vfork) 34*7ecb72feSdrahn RETGUARD_SETUP(vfork, t6) 35*7ecb72feSdrahn mv a2, ra 36*7ecb72feSdrahn SYSTRAP(vfork) 37*7ecb72feSdrahn HANDLE_ERROR() 38*7ecb72feSdrahn mv ra, a2 39*7ecb72feSdrahn RETGUARD_CHECK(vfork, t6) 40*7ecb72feSdrahn ret 41*7ecb72feSdrahnSYSCALL_END_HIDDEN(vfork) 42