sys/compat/irix/irix_mod.c

   1 /*      $NetBSD: irix_mod.c,v 1.1 2008/11/19 18:36:03 ad Exp $  */
   2
   3 /*-
   4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software developed for The NetBSD Foundation
   8  * by Andrew Doran.
   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
  32 #include <sys/cdefs.h>
  33 __KERNEL_RCSID(0, "$NetBSD: irix_mod.c,v 1.1 2008/11/19 18:36:03 ad Exp $");
  34
  35 #ifndef ELFSIZE
  36 #define ELFSIZE ARCH_ELFSIZE
  37 #endif
  38
  39 #include <sys/param.h>
  40 #include <sys/module.h>
  41 #include <sys/exec.h>
  42 #include <sys/exec_elf.h>
  43
  44 #include <compat/irix/irix_sysctl.h>
  45 #include <compat/irix/irix_exec.h>
  46
  47 #if defined(EXEC_ELF32)
  48 # define        MD1     ",exec_elf32"
  49 #else
  50 # define        MD1     ""
  51 #endif
  52
  53 MODULE(MODULE_CLASS_MISC, compat_irix, "compat,compat_svr4" MD1);
  54
  55 static struct execsw irix_execsw[] = {
  56 #if defined(EXEC_ELF32)
  57         /* IRIX Elf32 n32 ABI */
  58         { sizeof (Elf32_Ehdr),
  59           exec_elf32_makecmds,
  60           { irix_elf32_probe_n32 },
  61           &emul_irix,
  62           EXECSW_PRIO_ANY,
  63           IRIX_AUX_ARGSIZ,
  64           irix_elf32_copyargs,
  65           irix_n32_setregs,
  66           coredump_elf32,
  67           exec_setup_stack },
  68         /* IRIX Elf32 o32 ABI */
  69         { sizeof (Elf32_Ehdr),
  70           exec_elf32_makecmds,
  71           { irix_elf32_probe_o32 },
  72           &emul_irix,
  73           EXECSW_PRIO_ANY,
  74           IRIX_AUX_ARGSIZ,
  75           irix_elf32_copyargs,
  76           NULL,
  77           coredump_elf32,
  78           exec_setup_stack },
  79 #endif
  80 };
  81
  82 static int
  83 compat_irix_modcmd(modcmd_t cmd, void *arg)
  84 {
  85         int error;
  86
  87         switch (cmd) {
  88         case MODULE_CMD_INIT:
  89                 irix_sysctl_init();
  90                 error = exec_add(irix_execsw, __arraycount(irix_execsw));
  91                 if (error != 0)
  92                         irix_sysctl_fini();
  93                 return error;
  94
  95         case MODULE_CMD_FINI:
  96                 error = exec_remove(irix_execsw, __arraycount(irix_execsw));
  97                 if (error == 0)
  98                         irix_sysctl_fini();
  99                 return error;
 100
 101         default:
 102                 return ENOTTY;
 103         }
 104 }