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 | |
107 | struct md_core { |
108 | struct reg intreg; |
109 | struct fpreg freg; |
110 | }; |
111 | |
112 | int |
113 | cpu_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 | |