1/* $NetBSD: core_machdep.c,v 1.5 2014/01/04 00:10:03 dsl Exp $ */
2
3/*-
4 * Copyright (c) 1982, 1986 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * the Systems Programming Group of the University of Utah Computer
9 * Science Department, and William Jolitz.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * @(#)vm_machdep.c 7.3 (Berkeley) 5/13/91
36 */
37
38/*-
39 * Copyright (c) 1995 Charles M. Hannum. All rights reserved.
40 * Copyright (c) 1989, 1990 William Jolitz
41 * All rights reserved.
42 *
43 * This code is derived from software contributed to Berkeley by
44 * the Systems Programming Group of the University of Utah Computer
45 * Science Department, and William Jolitz.
46 *
47 * Redistribution and use in source and binary forms, with or without
48 * modification, are permitted provided that the following conditions
49 * are met:
50 * 1. Redistributions of source code must retain the above copyright
51 * notice, this list of conditions and the following disclaimer.
52 * 2. Redistributions in binary form must reproduce the above copyright
53 * notice, this list of conditions and the following disclaimer in the
54 * documentation and/or other materials provided with the distribution.
55 * 3. All advertising materials mentioning features or use of this software
56 * must display the following acknowledgement:
57 * This product includes software developed by the University of
58 * California, Berkeley and its contributors.
59 * 4. Neither the name of the University nor the names of its contributors
60 * may be used to endorse or promote products derived from this software
61 * without specific prior written permission.
62 *
63 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
64 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
65 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
66 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
67 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
68 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
69 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
70 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
71 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
72 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
73 * SUCH DAMAGE.
74 *
75 * @(#)vm_machdep.c 7.3 (Berkeley) 5/13/91
76 */
77
78/*
79 * Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$
80 */
81
82#include <sys/cdefs.h>
83__KERNEL_RCSID(0, "$NetBSD: core_machdep.c,v 1.5 2014/01/04 00:10:03 dsl Exp $");
84
85#include <sys/param.h>
86#include <sys/systm.h>
87#include <sys/proc.h>
88#include <sys/vnode.h>
89#include <sys/buf.h>
90#include <sys/core.h>
91#include <sys/exec.h>
92#include <sys/ptrace.h>
93
94#include <sys/exec_aout.h>
95
96#include <uvm/uvm_extern.h>
97
98#include <machine/cpu.h>
99#include <machine/gdt.h>
100#include <machine/reg.h>
101#include <machine/specialreg.h>
102
103/*
104 * Dump the machine specific segment at the start of a core dump.
105 */
106
107struct md_core {
108 struct reg intreg;
109 struct fpreg freg;
110};
111
112int
113cpu_coredump(struct lwp *l, struct coredump_iostate *iocookie,
114 struct core *chdr)
115{
116 struct md_core md_core;
117 struct coreseg cseg;
118 size_t fp_size;
119 int error;
120
121 if (iocookie == NULL) {
122 CORE_SETMAGIC(*chdr, COREMAGIC, MID_MACHINE, 0);
123 chdr->c_hdrsize = ALIGN(sizeof(*chdr));
124 chdr->c_seghdrsize = ALIGN(sizeof(cseg));
125 chdr->c_cpusize = sizeof(md_core);
126 chdr->c_nseg++;
127 return 0;
128 }
129
130 /* Save integer registers. */
131 error = process_read_regs(l, &md_core.intreg);
132 if (error)
133 return error;
134
135 /* Save floating point registers. */
136 fp_size = sizeof md_core.freg;
137 error = process_read_fpregs(l, &md_core.freg, &fp_size);
138 if (error)
139 return error;
140
141 CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
142 cseg.c_addr = 0;
143 cseg.c_size = chdr->c_cpusize;
144
145 error = coredump_write(iocookie, UIO_SYSSPACE, &cseg,
146 chdr->c_seghdrsize);
147 if (error)
148 return error;
149
150 return coredump_write(iocookie, UIO_SYSSPACE,
151 &md_core, sizeof(md_core));
152}
153