1 /* $NetBSD: netbsd32_compat_16.c,v 1.4 2021/11/26 08:06:11 ryo Exp $ */ 2 3 /*- 4 * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_16.c,v 1.4 2021/11/26 08:06:11 ryo Exp $"); 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/module.h> 37 #include <sys/dirent.h> 38 #include <sys/exec.h> 39 #include <sys/lwp.h> 40 #include <sys/syscallargs.h> 41 #include <sys/syscallvar.h> 42 43 #include <compat/netbsd32/netbsd32.h> 44 #include <compat/netbsd32/netbsd32_syscall.h> 45 #include <compat/netbsd32/netbsd32_syscallargs.h> 46 #include <compat/netbsd32/netbsd32_conv.h> 47 48 struct uvm_object *emul_netbsd32_object; 49 50 MODULE(MODULE_CLASS_EXEC, compat_netbsd32_16, "compat_netbsd32_20,compat_16"); 51 52 static int 53 compat_netbsd32_16_modcmd(modcmd_t cmd, void *arg) 54 { 55 int error; 56 57 switch (cmd) { 58 case MODULE_CMD_INIT: 59 rw_enter(&exec_lock, RW_WRITER); 60 emul_netbsd32.e_sigcode = netbsd32_sigcode; 61 emul_netbsd32.e_esigcode = netbsd32_esigcode; 62 emul_netbsd32.e_sigobject = &emul_netbsd32_object; 63 error = exec_sigcode_alloc(&emul_netbsd); 64 if (error) { 65 emul_netbsd32.e_sigcode = NULL; 66 emul_netbsd32.e_esigcode = NULL; 67 emul_netbsd32.e_sigobject = NULL; 68 } 69 rw_exit(&exec_lock); 70 if (error) 71 return error; 72 netbsd32_machdep_md_16_init(); 73 return 0; 74 75 case MODULE_CMD_FINI: 76 rw_enter(&exec_lock, RW_WRITER); 77 exec_sigcode_free(&emul_netbsd); 78 emul_netbsd32.e_sigcode = NULL; 79 emul_netbsd32.e_esigcode = NULL; 80 emul_netbsd32.e_sigobject = NULL; 81 rw_exit(&exec_lock); 82 netbsd32_machdep_md_16_fini(); 83 return 0; 84 85 default: 86 return ENOTTY; 87 } 88 } 89