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      1 /*	$NetBSD: netbsd32_core.c,v 1.18 2020/11/08 07:30:09 rin Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997 Charles D. Cranor and Washington University.
      5  * Copyright (c) 1991, 1993 The Regents of the University of California.
      6  * Copyright (c) 1988 University of Utah.
      7  *
      8  * All rights reserved.
      9  *
     10  * This code is derived from software contributed to Berkeley by
     11  * the Systems Programming Group of the University of Utah Computer
     12  * Science Department.
     13  *
     14  * Redistribution and use in source and binary forms, with or without
     15  * modification, are permitted provided that the following conditions
     16  * are met:
     17  * 1. Redistributions of source code must retain the above copyright
     18  *    notice, this list of conditions and the following disclaimer.
     19  * 2. Redistributions in binary form must reproduce the above copyright
     20  *    notice, this list of conditions and the following disclaimer in the
     21  *    documentation and/or other materials provided with the distribution.
     22  * 3. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  * from: Utah $Hdr: vm_unix.c 1.1 89/11/07$
     39  *      @(#)vm_unix.c   8.1 (Berkeley) 6/11/93
     40  * from: NetBSD: uvm_unix.c,v 1.25 2001/11/10 07:37:01 lukem Exp
     41  */
     42 
     43 /*
     44  * core_netbsd.c: Support for the historic NetBSD core file format.
     45  */
     46 
     47 #include <sys/cdefs.h>
     48 __KERNEL_RCSID(0, "$NetBSD: netbsd32_core.c,v 1.18 2020/11/08 07:30:09 rin Exp $");
     49 
     50 #include <sys/compat_stub.h>
     51 #include <sys/exec_elf.h>
     52 #include <sys/lwp.h>
     53 #include <sys/module.h>
     54 
     55 #ifdef _KERNEL_OPT
     56 #include "opt_execfmt.h"
     57 #endif
     58 
     59 #define DEPS "compat_netbsd32,compat_netbsd32_ptrace,coredump"
     60 
     61 MODULE(MODULE_CLASS_MISC, compat_netbsd32_coredump, DEPS);
     62 
     63 #define	CORENAME(x)	__CONCAT(x,32)
     64 #define	COREINC		<compat/netbsd32/netbsd32.h>
     65 
     66 #include "../../kern/core_netbsd.c"
     67 
     68 static int
     69 compat_netbsd32_coredump_modcmd(modcmd_t cmd, void *arg)
     70 {
     71 
     72 	switch (cmd) {
     73 	case MODULE_CMD_INIT:
     74 		MODULE_HOOK_SET(coredump_netbsd32_hook, real_coredump_netbsd32);
     75 #if defined(EXEC_ELF32) && defined(_LP64)
     76 		MODULE_HOOK_SET(coredump_elf32_hook, real_coredump_elf32);
     77 #endif
     78 		return 0;
     79 	case MODULE_CMD_FINI:
     80 		MODULE_HOOK_UNSET(coredump_netbsd32_hook);
     81 #if defined(EXEC_ELF32) && defined(_LP64)
     82 		MODULE_HOOK_UNSET(coredump_elf32_hook);
     83 #endif
     84 		return 0;
     85 	default:
     86 		return ENOTTY;
     87 	}
     88 }
     89