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linux32_mod.c revision 1.2.8.2 
      1  1.2.8.2  skrll /*	$NetBSD: linux32_mod.c,v 1.2.8.2 2009/01/19 13:17:32 skrll Exp $	*/
      2  1.2.8.2  skrll 
      3  1.2.8.2  skrll /*-
      4  1.2.8.2  skrll  * Copyright (c) 2008 The NetBSD Foundation, Inc.
      5  1.2.8.2  skrll  * All rights reserved.
      6  1.2.8.2  skrll  *
      7  1.2.8.2  skrll  * This code is derived from software developed for The NetBSD Foundation
      8  1.2.8.2  skrll  * by Andrew Doran.
      9  1.2.8.2  skrll  *
     10  1.2.8.2  skrll  * Redistribution and use in source and binary forms, with or without
     11  1.2.8.2  skrll  * modification, are permitted provided that the following conditions
     12  1.2.8.2  skrll  * are met:
     13  1.2.8.2  skrll  * 1. Redistributions of source code must retain the above copyright
     14  1.2.8.2  skrll  *    notice, this list of conditions and the following disclaimer.
     15  1.2.8.2  skrll  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.2.8.2  skrll  *    notice, this list of conditions and the following disclaimer in the
     17  1.2.8.2  skrll  *    documentation and/or other materials provided with the distribution.
     18  1.2.8.2  skrll  *
     19  1.2.8.2  skrll  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.2.8.2  skrll  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.2.8.2  skrll  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.2.8.2  skrll  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.2.8.2  skrll  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.2.8.2  skrll  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.2.8.2  skrll  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.2.8.2  skrll  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.2.8.2  skrll  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.2.8.2  skrll  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.2.8.2  skrll  * POSSIBILITY OF SUCH DAMAGE.
     30  1.2.8.2  skrll  */
     31  1.2.8.2  skrll 
     32  1.2.8.2  skrll #include <sys/cdefs.h>
     33  1.2.8.2  skrll __KERNEL_RCSID(0, "$NetBSD: linux32_mod.c,v 1.2.8.2 2009/01/19 13:17:32 skrll Exp $");
     34  1.2.8.2  skrll 
     35  1.2.8.2  skrll #ifdef _KERNEL_OPT
     36  1.2.8.2  skrll #include "opt_execfmt.h"
     37  1.2.8.2  skrll #endif
     38  1.2.8.2  skrll 
     39  1.2.8.2  skrll #ifndef ELFSIZE
     40  1.2.8.2  skrll #define ELFSIZE ARCH_ELFSIZE
     41  1.2.8.2  skrll #endif
     42  1.2.8.2  skrll 
     43  1.2.8.2  skrll #include <sys/param.h>
     44  1.2.8.2  skrll #include <sys/module.h>
     45  1.2.8.2  skrll #include <sys/exec.h>
     46  1.2.8.2  skrll #include <sys/signalvar.h>
     47  1.2.8.2  skrll 
     48  1.2.8.2  skrll #include <compat/linux32/common/linux32_sysctl.h>
     49  1.2.8.2  skrll #include <compat/linux32/common/linux32_exec.h>
     50  1.2.8.2  skrll 
     51  1.2.8.2  skrll #if defined(EXEC_ELF32)
     52  1.2.8.2  skrll # define	MD1	",exec_elf32,compat_netbsd32"
     53  1.2.8.2  skrll #else
     54  1.2.8.2  skrll # define	MD1	""
     55  1.2.8.2  skrll #endif
     56  1.2.8.2  skrll 
     57  1.2.8.2  skrll MODULE(MODULE_CLASS_MISC, compat_linux32, "compat_linux" MD1);
     58  1.2.8.2  skrll 
     59  1.2.8.2  skrll static struct execsw linux32_execsw[] = {
     60  1.2.8.2  skrll #if defined(EXEC_ELF32)
     61  1.2.8.2  skrll         { sizeof (Elf32_Ehdr),
     62  1.2.8.2  skrll           exec_elf32_makecmds,
     63  1.2.8.2  skrll           { linux32_elf32_probe },
     64  1.2.8.2  skrll           &emul_linux32,
     65  1.2.8.2  skrll           EXECSW_PRIO_FIRST,
     66  1.2.8.2  skrll 	  LINUX32_ELF_AUX_ARGSIZ,
     67  1.2.8.2  skrll           linux32_elf32_copyargs,
     68  1.2.8.2  skrll           NULL,
     69  1.2.8.2  skrll           coredump_elf32,
     70  1.2.8.2  skrll           exec_setup_stack },
     71  1.2.8.2  skrll #endif
     72  1.2.8.2  skrll };
     73  1.2.8.2  skrll 
     74  1.2.8.2  skrll static int
     75  1.2.8.2  skrll compat_linux32_modcmd(modcmd_t cmd, void *arg)
     76  1.2.8.2  skrll {
     77  1.2.8.2  skrll 	int error;
     78  1.2.8.2  skrll 
     79  1.2.8.2  skrll 	switch (cmd) {
     80  1.2.8.2  skrll 	case MODULE_CMD_INIT:
     81  1.2.8.2  skrll 		linux32_sysctl_init();
     82  1.2.8.2  skrll 		error = exec_add(linux32_execsw,
     83  1.2.8.2  skrll 		    __arraycount(linux32_execsw));
     84  1.2.8.2  skrll 		if (error != 0)
     85  1.2.8.2  skrll 			linux32_sysctl_fini();
     86  1.2.8.2  skrll 		return error;
     87  1.2.8.2  skrll 
     88  1.2.8.2  skrll 	case MODULE_CMD_FINI:
     89  1.2.8.2  skrll 		error = exec_remove(linux32_execsw,
     90  1.2.8.2  skrll 		    __arraycount(linux32_execsw));
     91  1.2.8.2  skrll 		if (error == 0)
     92  1.2.8.2  skrll 			linux32_sysctl_fini();
     93  1.2.8.2  skrll 		return error;
     94  1.2.8.2  skrll 
     95  1.2.8.2  skrll 	default:
     96  1.2.8.2  skrll 		return ENOTTY;
     97  1.2.8.2  skrll 	}
     98  1.2.8.2  skrll }
     99