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      1 /*-
      2  * Copyright (c) 2012 The NetBSD Foundation, Inc.
      3  * All rights reserved.
      4  *
      5  * This code is derived from software contributed to The NetBSD Foundation
      6  * by Matt Thomas of 3am Software Foundry.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     20  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     25  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     27  * POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include <sys/cdefs.h>
     31 
     32 __KERNEL_RCSID(1, "$NetBSD: netbsd32_machdep_16.c,v 1.5 2020/06/20 07:10:36 skrll Exp $");
     33 
     34 #ifdef _KERNEL_OPT
     35 #include "opt_compat_netbsd.h"
     36 #include "opt_compat_netbsd32.h"
     37 #endif
     38 
     39 #include <sys/param.h>
     40 
     41 #include <sys/core.h>
     42 #include <sys/exec.h>
     43 #include <sys/lwp.h>
     44 #include <sys/signalvar.h>
     45 #include <sys/syscallvar.h>
     46 #include <sys/syscallargs.h>
     47 
     48 #include <uvm/uvm_extern.h>
     49 
     50 #include <compat/netbsd32/netbsd32.h>
     51 #include <compat/netbsd32/netbsd32_exec.h>
     52 #include <compat/netbsd32/netbsd32_syscall.h>
     53 #include <compat/netbsd32/netbsd32_syscallargs.h>
     54 
     55 #ifdef COMPAT_16
     56 
     57 int
     58 compat_16_netbsd32___sigreturn14(struct lwp *l,
     59 	const struct compat_16_netbsd32___sigreturn14_args *uap,
     60 	register_t *retval)
     61 {
     62 	struct compat_16_sys___sigreturn14_args ua;
     63 
     64 	NETBSD32TOP_UAP(sigcntxp, struct sigcontext *);
     65 
     66 	return compat_16_sys___sigreturn14(l, &ua, retval);
     67 }
     68 
     69 static struct syscall_package compat_arm32_netbsd32_16_syscalls[] = {
     70         { NETBSD32_SYS_compat_16_netbsd32___sigreturn14, 0,
     71             (sy_call_t *)compat_16_netbsd32___sigreturn14 },
     72 	{ 0, 0, NULL }
     73 };
     74 
     75 void
     76 netbsd32_machdep_md_16_init(void)
     77 {
     78 
     79 	(void)syscall_establish(&emul_netbsd32,
     80 	    compat_arm32_netbsd32_16_syscalls);
     81 }
     82 
     83 void
     84 netbsd32_machdep_md_16_fini(void)
     85 {
     86 
     87 	(void)syscall_disestablish(&emul_netbsd32,
     88 	    compat_arm32_netbsd32_16_syscalls);
     89 }
     90 #endif
     91