1 | /* $NetBSD: netbsd32_mod.c,v 1.13 2015/12/03 02:51:01 pgoyette 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: netbsd32_mod.c,v 1.13 2015/12/03 02:51:01 pgoyette Exp $" ); |
34 | |
35 | #ifdef _KERNEL_OPT |
36 | #include "opt_execfmt.h" |
37 | #endif |
38 | |
39 | #ifndef ELFSIZE |
40 | #define ELFSIZE ARCH_ELFSIZE |
41 | #endif |
42 | |
43 | #include <sys/param.h> |
44 | #include <sys/module.h> |
45 | #include <sys/exec.h> |
46 | #include <sys/exec_elf.h> |
47 | |
48 | #include <compat/netbsd32/netbsd32_sysctl.h> |
49 | #include <compat/netbsd32/netbsd32_exec.h> |
50 | |
51 | # define DEPS1 "compat,sysv_ipc,ksem" |
52 | |
53 | #if defined(EXEC_ELF32) |
54 | # define DEPS2 ",exec_elf32" |
55 | #else |
56 | # define DEPS2 "" |
57 | #endif |
58 | |
59 | #define ELF32_AUXSIZE (howmany(ELF_AUX_ENTRIES * sizeof(Aux32Info), \ |
60 | sizeof(Elf32_Addr)) + MAXPATHLEN + ALIGN(1)) |
61 | |
62 | MODULE(MODULE_CLASS_EXEC, compat_netbsd32, DEPS1 DEPS2); |
63 | |
64 | static struct execsw netbsd32_execsw[] = { |
65 | #ifdef EXEC_AOUT |
66 | { |
67 | .es_hdrsz = sizeof(struct netbsd32_exec), |
68 | .es_makecmds = exec_netbsd32_makecmds, |
69 | .u = { |
70 | .elf_probe_func = NULL, |
71 | }, |
72 | .es_emul = &emul_netbsd32, |
73 | .es_prio = EXECSW_PRIO_FIRST, |
74 | .es_arglen = 0, |
75 | .es_copyargs = netbsd32_copyargs, |
76 | .es_setregs = NULL, |
77 | .es_coredump = coredump_netbsd32, |
78 | .es_setup_stack = exec_setup_stack, |
79 | }, |
80 | #endif |
81 | #ifdef EXEC_ELF32 |
82 | { |
83 | .es_hdrsz = sizeof (Elf32_Ehdr), |
84 | .es_makecmds = exec_elf32_makecmds, |
85 | .u = { |
86 | .elf_probe_func = netbsd32_elf32_probe, |
87 | }, |
88 | .es_emul = &emul_netbsd32, |
89 | .es_prio = EXECSW_PRIO_ANY, |
90 | .es_arglen = ELF32_AUXSIZE, |
91 | .es_copyargs = netbsd32_elf32_copyargs, |
92 | .es_setregs = NULL, |
93 | .es_coredump = coredump_elf32, |
94 | .es_setup_stack = exec_setup_stack, /* XXX XXX XXX */ |
95 | }, |
96 | #endif |
97 | }; |
98 | |
99 | static int |
100 | compat_netbsd32_modcmd(modcmd_t cmd, void *arg) |
101 | { |
102 | int error; |
103 | |
104 | switch (cmd) { |
105 | case MODULE_CMD_INIT: |
106 | netbsd32_sysctl_init(); |
107 | error = exec_add(netbsd32_execsw, |
108 | __arraycount(netbsd32_execsw)); |
109 | if (error != 0) |
110 | netbsd32_sysctl_fini(); |
111 | return error; |
112 | |
113 | case MODULE_CMD_FINI: |
114 | error = exec_remove(netbsd32_execsw, |
115 | __arraycount(netbsd32_execsw)); |
116 | if (error == 0) |
117 | netbsd32_sysctl_fini(); |
118 | return error; |
119 | |
120 | default: |
121 | return ENOTTY; |
122 | } |
123 | } |
124 | |