1/* $NetBSD: core_netbsd.c,v 1.22 2014/01/07 07:59:03 dsl 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: core_netbsd.c,v 1.22 2014/01/07 07:59:03 dsl Exp $");
49
50#ifdef _KERNEL_OPT
51#include "opt_coredump.h"
52#endif
53
54#include <sys/param.h>
55#include <sys/systm.h>
56#include <sys/exec.h>
57#include <sys/proc.h>
58#include <sys/vnode.h>
59#include <sys/core.h>
60
61#include <uvm/uvm_extern.h>
62
63#ifndef CORENAME
64#define CORENAME(x) x
65#endif
66#ifdef COREINC
67#include COREINC
68#endif
69
70#ifdef COREDUMP
71
72struct coredump_state {
73 struct coredump_iostate *iocookie;
74 struct CORENAME(core) core;
75};
76
77static int CORENAME(coredump_writesegs_netbsd)(struct uvm_coredump_state *);
78
79int
80CORENAME(coredump_netbsd)(struct lwp *l, struct coredump_iostate *iocookie)
81{
82 struct coredump_state cs;
83 struct proc *p = l->l_proc;
84 struct vmspace *vm = p->p_vmspace;
85 int error;
86
87 cs.iocookie = iocookie;
88 cs.core.c_midmag = 0;
89 strncpy(cs.core.c_name, p->p_comm, MAXCOMLEN);
90 cs.core.c_nseg = 0;
91 cs.core.c_signo = p->p_sigctx.ps_signo;
92 cs.core.c_ucode = p->p_sigctx.ps_code;
93 cs.core.c_cpusize = 0;
94 cs.core.c_tsize = (u_long)ctob(vm->vm_tsize);
95 cs.core.c_dsize = (u_long)ctob(vm->vm_dsize);
96 cs.core.c_ssize = (u_long)round_page(ctob(vm->vm_ssize));
97
98 error = CORENAME(cpu_coredump)(l, NULL, &cs.core);
99 if (error)
100 return (error);
101 cs.core.c_nseg = uvm_coredump_count_segs(p);
102
103 /* First write out the core header. */
104 error = coredump_write(iocookie, UIO_SYSSPACE, &cs.core,
105 cs.core.c_hdrsize);
106 if (error)
107 return (error);
108
109 /* Then the CPU specific stuff */
110 error = CORENAME(cpu_coredump)(l, iocookie, &cs.core);
111 if (error)
112 return (error);
113
114 /* Finally, the address space dump */
115 return uvm_coredump_walkmap(p, CORENAME(coredump_writesegs_netbsd),
116 &cs);
117}
118
119static int
120CORENAME(coredump_writesegs_netbsd)(struct uvm_coredump_state *us)
121{
122 struct coredump_state *cs = us->cookie;
123 struct CORENAME(coreseg) cseg;
124 int flag, error;
125
126 if (us->flags & UVM_COREDUMP_STACK)
127 flag = CORE_STACK;
128 else
129 flag = CORE_DATA;
130
131 /*
132 * Set up a new core file segment.
133 */
134 CORE_SETMAGIC(cseg, CORESEGMAGIC, CORE_GETMID(cs->core), flag);
135 cseg.c_addr = us->start;
136
137 if (us->start == us->realend)
138 /* Not really wanted, but counted... */
139 cseg.c_size = 0;
140 else
141 cseg.c_size = us->end - us->start;
142
143 error = coredump_write(cs->iocookie, UIO_SYSSPACE,
144 &cseg, cs->core.c_seghdrsize);
145 if (error)
146 return (error);
147
148 return coredump_write(cs->iocookie, UIO_USERSPACE,
149 (void *)(vaddr_t)us->start, cseg.c_size);
150}
151
152#else /* COREDUMP */
153
154int
155CORENAME(coredump_netbsd)(struct lwp *l, struct coredump_iostate *cookie)
156{
157
158 return ENOSYS;
159}
160
161#endif /* COREDUMP */
162