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      1 /*	$NetBSD: core_machdep.c,v 1.6 2019/11/20 19:37:52 pgoyette Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc. All rights reserved.
      5  * Copyright (c) 1982, 1986 The Regents of the University of California.
      6  * All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department, and William Jolitz.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  *	@(#)vm_machdep.c	7.3 (Berkeley) 5/13/91
     37  */
     38 
     39 /*-
     40  * Copyright (c) 1995 Charles M. Hannum.  All rights reserved.
     41  * Copyright (c) 1989, 1990 William Jolitz
     42  * All rights reserved.
     43  *
     44  * This code is derived from software contributed to Berkeley by
     45  * the Systems Programming Group of the University of Utah Computer
     46  * Science Department, and William Jolitz.
     47  *
     48  * Redistribution and use in source and binary forms, with or without
     49  * modification, are permitted provided that the following conditions
     50  * are met:
     51  * 1. Redistributions of source code must retain the above copyright
     52  *    notice, this list of conditions and the following disclaimer.
     53  * 2. Redistributions in binary form must reproduce the above copyright
     54  *    notice, this list of conditions and the following disclaimer in the
     55  *    documentation and/or other materials provided with the distribution.
     56  * 3. All advertising materials mentioning features or use of this software
     57  *    must display the following acknowledgement:
     58  *	This product includes software developed by the University of
     59  *	California, Berkeley and its contributors.
     60  * 4. Neither the name of the University nor the names of its contributors
     61  *    may be used to endorse or promote products derived from this software
     62  *    without specific prior written permission.
     63  *
     64  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     65  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     66  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     67  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     68  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     69  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     70  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     71  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     72  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     73  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     74  * SUCH DAMAGE.
     75  *
     76  *	@(#)vm_machdep.c	7.3 (Berkeley) 5/13/91
     77  */
     78 
     79 /*
     80  *	Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$
     81  */
     82 
     83 #include <sys/cdefs.h>
     84 __KERNEL_RCSID(0, "$NetBSD: core_machdep.c,v 1.6 2019/11/20 19:37:52 pgoyette Exp $");
     85 
     86 #include <sys/param.h>
     87 #include <sys/systm.h>
     88 #include <sys/proc.h>
     89 #include <sys/core.h>
     90 #include <sys/exec.h>
     91 #include <sys/ptrace.h>
     92 #include <sys/compat_stub.h>
     93 
     94 #include <sh3/reg.h>
     95 
     96 
     97 /*
     98  * Dump the machine specific segment at the start of a core dump.
     99  */
    100 struct md_core {
    101 	struct reg intreg;
    102 };
    103 
    104 int
    105 cpu_coredump(struct lwp *l, struct coredump_iostate *iocookie,
    106     struct core *chdr)
    107 {
    108 	struct md_core md_core;
    109 	struct coreseg cseg;
    110 	int error;
    111 
    112 	if (iocookie == NULL) {
    113 		CORE_SETMAGIC(*chdr, COREMAGIC, MID_MACHINE, 0);
    114 		chdr->c_hdrsize = ALIGN(sizeof(*chdr));
    115 		chdr->c_seghdrsize = ALIGN(sizeof(cseg));
    116 		chdr->c_cpusize = sizeof(md_core);
    117 		chdr->c_nseg++;
    118 		return 0;
    119 	}
    120 
    121 	/* Save integer registers. */
    122 	error = process_read_regs(l, &md_core.intreg);
    123 	if (error)
    124 		return error;
    125 
    126 	CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
    127 	cseg.c_addr = 0;
    128 	cseg.c_size = chdr->c_cpusize;
    129 
    130 	MODULE_HOOK_CALL(coredump_write_hook, (iocookie, UIO_SYSSPACE, &cseg,
    131 	    chdr->c_seghdrsize), ENOSYS, error);
    132 	if (error)
    133 		return error;
    134 
    135 	MODULE_HOOK_CALL(coredump_write_hook, (iocookie, UIO_SYSSPACE, &md_core,
    136 	    sizeof(md_core)), ENOSYS, error);
    137 
    138 	return error;
    139 }
    140