1 /* $NetBSD: core_machdep.c,v 1.9 2023/12/20 05:33:19 thorpej Exp $ */
2
3 /*
4 * Copyright (c) 1996
5 * The President and Fellows of Harvard College. All rights reserved.
6 * Copyright (c) 1992, 1993
7 * The Regents of the University of California. All rights reserved.
8 *
9 * This software was developed by the Computer Systems Engineering group
10 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
11 * contributed to Berkeley.
12 *
13 * All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Lawrence Berkeley Laboratory.
17 * This product includes software developed by Harvard University.
18 *
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
21 * are met:
22 * 1. Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
27 * 3. All advertising materials mentioning features or use of this software
28 * must display the following acknowledgement:
29 * This product includes software developed by Harvard University.
30 * This product includes software developed by the University of
31 * California, Berkeley and its contributors.
32 * 4. Neither the name of the University nor the names of its contributors
33 * may be used to endorse or promote products derived from this software
34 * without specific prior written permission.
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
37 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
39 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
40 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
41 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
42 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
44 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
45 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 *
48 * @(#)vm_machdep.c 8.2 (Berkeley) 9/23/93
49 */
50
51 #include <sys/cdefs.h>
52 __KERNEL_RCSID(0, "$NetBSD: core_machdep.c,v 1.9 2023/12/20 05:33:19 thorpej Exp $");
53
54 #include <sys/param.h>
55 #include <sys/systm.h>
56 #include <sys/proc.h>
57 #include <sys/core.h>
58 #include <sys/buf.h>
59 #include <sys/exec.h>
60 #include <sys/vnode.h>
61 #include <sys/compat_stub.h>
62
63 #include <sys/exec_aout.h>
64
65 #include <uvm/uvm_extern.h>
66
67 #include <machine/cpu.h>
68 #include <machine/frame.h>
69 #include <machine/pcb.h>
70 #include <machine/trap.h>
71
72 #include <sparc/sparc/cpuvar.h>
73
74 /*
75 * cpu_coredump is called to write a core dump header.
76 */
77 int
cpu_coredump(struct lwp * l,struct coredump_iostate * iocookie,struct core * chdr)78 cpu_coredump(struct lwp *l, struct coredump_iostate *iocookie,
79 struct core *chdr)
80 {
81 int error;
82 struct md_coredump md_core;
83 struct coreseg cseg;
84
85 if (iocookie == NULL) {
86 CORE_SETMAGIC(*chdr, COREMAGIC, MID_MACHINE, 0);
87 chdr->c_hdrsize = ALIGN(sizeof(*chdr));
88 chdr->c_seghdrsize = ALIGN(sizeof(cseg));
89 chdr->c_cpusize = sizeof(md_core);
90 chdr->c_nseg++;
91 return 0;
92 }
93
94 md_core.md_tf = *l->l_md.md_tf;
95 if (l->l_md.md_fpstate) {
96 if (l == cpuinfo.fplwp)
97 savefpstate(l->l_md.md_fpstate);
98 md_core.md_fpstate = *l->l_md.md_fpstate;
99 } else
100 memset((void *)&md_core.md_fpstate, 0, sizeof(struct fpstate));
101
102 CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU);
103 cseg.c_addr = 0;
104 cseg.c_size = chdr->c_cpusize;
105
106 MODULE_HOOK_CALL(coredump_write_hook, (iocookie, UIO_SYSSPACE, &cseg,
107 chdr->c_seghdrsize), ENOSYS, error);
108 if (error)
109 return error;
110
111 MODULE_HOOK_CALL(coredump_write_hook, (iocookie, UIO_SYSSPACE, &md_core,
112 sizeof(md_core)), ENOSYS, error);
113
114 return error;
115 }
116