1 /* $NetBSD: exec_elf32.c,v 1.140 2014/04/07 17:02:15 rjs Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Christopher G. Demetriou 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Christopher G. Demetriou 18 * for the NetBSD Project. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: exec_elf32.c,v 1.140 2014/04/07 17:02:15 rjs Exp $"); 36 37 #define ELFSIZE 32 38 39 #include "exec_elf.c" 40 41 #include <sys/module.h> 42 43 #define ELF32_AUXSIZE (howmany(ELF_AUX_ENTRIES * sizeof(Aux32Info), \ 44 sizeof(Elf32_Addr)) + MAXPATHLEN + ALIGN(1)) 45 46 #ifdef COREDUMP 47 #define DEP "coredump" 48 #else 49 #define DEP NULL 50 #endif 51 52 MODULE(MODULE_CLASS_EXEC, exec_elf32, DEP); 53 54 static struct execsw exec_elf32_execsw[] = { 55 { 56 .es_hdrsz = sizeof (Elf32_Ehdr), 57 .es_makecmds = exec_elf32_makecmds, 58 .u = { 59 .elf_probe_func = netbsd_elf32_probe, 60 }, 61 .es_emul = &emul_netbsd, 62 .es_prio = EXECSW_PRIO_ANY, 63 .es_arglen = ELF32_AUXSIZE, 64 .es_copyargs = elf32_copyargs, 65 .es_setregs = NULL, 66 .es_coredump = coredump_elf32, 67 .es_setup_stack = exec_setup_stack, 68 }, 69 #if EXEC_ELF_NOTELESS 70 { 71 .es_hdrsz = sizeof (Elf32_Ehdr), 72 .es_makecmds = exec_elf32_makecmds, 73 .u { 74 elf_probe_func = NULL, 75 }, 76 .es_emul = &emul_netbsd, 77 .es_prio = EXECSW_PRIO_LAST, 78 .es_arglen = ELF32_AUXSIZE, 79 .es_copyargs = elf32_copyargs, 80 .es_setregs = NULL, 81 .es_coredump = coredump_elf32, 82 .es_setup_stack = exec_setup_stack, 83 }, 84 #endif 85 }; 86 87 static int 88 exec_elf32_modcmd(modcmd_t cmd, void *arg) 89 { 90 91 switch (cmd) { 92 case MODULE_CMD_INIT: 93 return exec_add(exec_elf32_execsw, 94 __arraycount(exec_elf32_execsw)); 95 96 case MODULE_CMD_FINI: 97 return exec_remove(exec_elf32_execsw, 98 __arraycount(exec_elf32_execsw)); 99 100 default: 101 return ENOTTY; 102 } 103 } 104