Home | History | Annotate | Line # | Download | only in kern 
      1 /*	$NetBSD: exec_elf64.c,v 1.9 2024/12/06 16:19:41 riastradh 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_elf64.c,v 1.9 2024/12/06 16:19:41 riastradh Exp $");
     36 
     37 #define	ELFSIZE	64
     38 
     39 #include "exec_elf.c"
     40 
     41 #include <sys/module.h>
     42 
     43 #define ELF64_AUXSIZE (ELF_AUX_ENTRIES * sizeof(Aux64Info) \
     44     + MAXPATHLEN + ALIGN(1))
     45 
     46 MODULE(MODULE_CLASS_EXEC, exec_elf64, NULL);
     47 
     48 static struct execsw exec_elf64_execsw[] = {
     49 	/* Native Elf64 */
     50 	{
     51 		.es_hdrsz = sizeof (Elf64_Ehdr),
     52 	  	.es_makecmds = exec_elf64_makecmds,
     53 	  	.u = {
     54 			.elf_probe_func = netbsd_elf64_probe,
     55 		},
     56 		.es_emul = &emul_netbsd,
     57 		.es_prio = EXECSW_PRIO_FIRST,
     58 		.es_arglen = ELF64_AUXSIZE,
     59 		.es_copyargs = elf64_copyargs,
     60 		.es_setregs = NULL,
     61 		.es_coredump = coredump_elf64,
     62 		.es_setup_stack = exec_setup_stack,
     63 	},
     64 #if EXEC_ELF_NOTELESS
     65 	/* Generic Elf64 -- run at NetBSD Elf64 */
     66 	{
     67 		.es_hdrsz = sizeof (Elf64_Ehdr),
     68 		.es_makecmds = exec_elf64_makecmds,
     69 		.u = {
     70 			.elf_probe_func = NULL,
     71 		},
     72 		.es_emul = &emul_netbsd,
     73 		.es_prio = EXECSW_PRIO_ANY,
     74 		.es_arglen = ELF64_AUXSIZE,
     75 		.es_copyargs = elf64_copyargs,
     76 		.es_setregs = NULL,
     77 		.es_coredump = coredump_elf64,
     78 		.es_setup_stack = exec_setup_stack,
     79 	},
     80 #endif
     81 };
     82 
     83 static int
     84 exec_elf64_modcmd(modcmd_t cmd, void *arg)
     85 {
     86 
     87 	switch (cmd) {
     88 	case MODULE_CMD_INIT:
     89 		return exec_add(exec_elf64_execsw,
     90 		    __arraycount(exec_elf64_execsw));
     91 
     92 	case MODULE_CMD_FINI:
     93 		return exec_remove(exec_elf64_execsw,
     94 		    __arraycount(exec_elf64_execsw));
     95 
     96 	default:
     97 		return SET_ERROR(ENOTTY);
     98         }
     99 }
    100