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netbsd32_mod.c revision 1.1.4.2 
      1  1.1.4.2  haad /*	$NetBSD: netbsd32_mod.c,v 1.1.4.2 2008/12/13 01:14:03 haad Exp $	*/
      2  1.1.4.2  haad 
      3  1.1.4.2  haad /*-
      4  1.1.4.2  haad  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      5  1.1.4.2  haad  * All rights reserved.
      6  1.1.4.2  haad  *
      7  1.1.4.2  haad  * This code is derived from software developed for The NetBSD Foundation
      8  1.1.4.2  haad  * by Andrew Doran.
      9  1.1.4.2  haad  *
     10  1.1.4.2  haad  * Redistribution and use in source and binary forms, with or without
     11  1.1.4.2  haad  * modification, are permitted provided that the following conditions
     12  1.1.4.2  haad  * are met:
     13  1.1.4.2  haad  * 1. Redistributions of source code must retain the above copyright
     14  1.1.4.2  haad  *    notice, this list of conditions and the following disclaimer.
     15  1.1.4.2  haad  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.1.4.2  haad  *    notice, this list of conditions and the following disclaimer in the
     17  1.1.4.2  haad  *    documentation and/or other materials provided with the distribution.
     18  1.1.4.2  haad  *
     19  1.1.4.2  haad  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.1.4.2  haad  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.1.4.2  haad  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.1.4.2  haad  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.1.4.2  haad  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.1.4.2  haad  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.1.4.2  haad  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.1.4.2  haad  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.1.4.2  haad  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.1.4.2  haad  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.1.4.2  haad  * POSSIBILITY OF SUCH DAMAGE.
     30  1.1.4.2  haad  */
     31  1.1.4.2  haad 
     32  1.1.4.2  haad #include <sys/cdefs.h>
     33  1.1.4.2  haad __KERNEL_RCSID(0, "$NetBSD: netbsd32_mod.c,v 1.1.4.2 2008/12/13 01:14:03 haad Exp $");
     34  1.1.4.2  haad 
     35  1.1.4.2  haad #ifdef _KERNEL_OPT
     36  1.1.4.2  haad #include "opt_execfmt.h"
     37  1.1.4.2  haad #define	MODDEPS	"compat"
     38  1.1.4.2  haad #else
     39  1.1.4.2  haad #define	MODDEPS	"compat,ksem"
     40  1.1.4.2  haad #endif
     41  1.1.4.2  haad 
     42  1.1.4.2  haad #ifndef ELFSIZE
     43  1.1.4.2  haad #define ELFSIZE ARCH_ELFSIZE
     44  1.1.4.2  haad #endif
     45  1.1.4.2  haad 
     46  1.1.4.2  haad #include <sys/param.h>
     47  1.1.4.2  haad #include <sys/module.h>
     48  1.1.4.2  haad #include <sys/exec.h>
     49  1.1.4.2  haad #include <sys/exec_elf.h>
     50  1.1.4.2  haad 
     51  1.1.4.2  haad #include <compat/netbsd32/netbsd32_sysctl.h>
     52  1.1.4.2  haad #include <compat/netbsd32/netbsd32_exec.h>
     53  1.1.4.2  haad 
     54  1.1.4.2  haad #define ELF32_AUXSIZE (howmany(ELF_AUX_ENTRIES * sizeof(Aux32Info), \
     55  1.1.4.2  haad     sizeof(Elf32_Addr)) + MAXPATHLEN + ALIGN(1))
     56  1.1.4.2  haad 
     57  1.1.4.2  haad MODULE(MODULE_CLASS_MISC, compat_netbsd32, MODDEPS);
     58  1.1.4.2  haad 
     59  1.1.4.2  haad static struct execsw netbsd32_execsw[] = {
     60  1.1.4.2  haad #ifdef EXEC_AOUT
     61  1.1.4.2  haad 	{ sizeof(struct netbsd32_exec),
     62  1.1.4.2  haad 	  exec_netbsd32_makecmds,
     63  1.1.4.2  haad 	  { NULL },
     64  1.1.4.2  haad 	  &emul_netbsd32,
     65  1.1.4.2  haad 	  EXECSW_PRIO_FIRST,
     66  1.1.4.2  haad 	  0,
     67  1.1.4.2  haad 	  netbsd32_copyargs,
     68  1.1.4.2  haad 	  NULL,
     69  1.1.4.2  haad 	  coredump_netbsd32,
     70  1.1.4.2  haad 	  exec_setup_stack },
     71  1.1.4.2  haad #endif
     72  1.1.4.2  haad #ifdef EXEC_ELF32
     73  1.1.4.2  haad 	{ sizeof (Elf32_Ehdr),
     74  1.1.4.2  haad 	  exec_elf32_makecmds,
     75  1.1.4.2  haad 	  { netbsd32_elf32_probe },
     76  1.1.4.2  haad 	  &emul_netbsd32,
     77  1.1.4.2  haad 	  EXECSW_PRIO_FIRST,
     78  1.1.4.2  haad 	  ELF32_AUXSIZE,
     79  1.1.4.2  haad 	  netbsd32_elf32_copyargs,
     80  1.1.4.2  haad 	  NULL,
     81  1.1.4.2  haad 	  coredump_elf32,
     82  1.1.4.2  haad 	  exec_setup_stack },		/* XXX XXX XXX */
     83  1.1.4.2  haad #endif
     84  1.1.4.2  haad };
     85  1.1.4.2  haad 
     86  1.1.4.2  haad static int
     87  1.1.4.2  haad compat_netbsd32_modcmd(modcmd_t cmd, void *arg)
     88  1.1.4.2  haad {
     89  1.1.4.2  haad 	int error;
     90  1.1.4.2  haad 
     91  1.1.4.2  haad 	switch (cmd) {
     92  1.1.4.2  haad 	case MODULE_CMD_INIT:
     93  1.1.4.2  haad 		netbsd32_sysctl_init();
     94  1.1.4.2  haad 		error = exec_add(netbsd32_execsw,
     95  1.1.4.2  haad 		    __arraycount(netbsd32_execsw));
     96  1.1.4.2  haad 		if (error != 0)
     97  1.1.4.2  haad 			netbsd32_sysctl_fini();
     98  1.1.4.2  haad 		return error;
     99  1.1.4.2  haad 
    100  1.1.4.2  haad 	case MODULE_CMD_FINI:
    101  1.1.4.2  haad 		error = exec_remove(netbsd32_execsw,
    102  1.1.4.2  haad 		    __arraycount(netbsd32_execsw));
    103  1.1.4.2  haad 		if (error == 0)
    104  1.1.4.2  haad 			netbsd32_sysctl_fini();
    105  1.1.4.2  haad 		return error;
    106  1.1.4.2  haad 
    107  1.1.4.2  haad 	default:
    108  1.1.4.2  haad 		return ENOTTY;
    109  1.1.4.2  haad 	}
    110  1.1.4.2  haad }
    111