2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1993 Jan-Simon Pendry
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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.
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
35 * @(#)procfs_fpregs.c 8.2 (Berkeley) 6/15/94
38 * $Id: procfs_regs.c,v 3.2 1993/12/15 09:40:17 jsp Exp $
42 #include <sys/param.h>
43 #include <sys/systm.h>
45 #include <sys/mutex.h>
47 #include <sys/ptrace.h>
50 #include <fs/pseudofs/pseudofs.h>
51 #include <fs/procfs/procfs.h>
53 #ifdef COMPAT_FREEBSD32
54 #include <sys/sysent.h>
55 #include <sys/procfs.h>
56 #include <machine/fpu.h>
59 * PROC(write, fpregs, td2, &r) becomes
60 * proc_write_fpregs(td2, &r) or
61 * proc_write_fpregs32(td2, &r32)
63 * UIOMOVE_FROMBUF(r, uio) becomes
64 * uiomove_frombuf(&r, sizeof(r), uio) or
65 * uiomove_frombuf(&r32, sizeof(r32), uio)
67 #define PROC(d, w, t, r) wrap32 ? \
68 proc_ ## d ## _ ## w ## 32(t, r ## 32) : \
69 proc_ ## d ## _ ## w(t, r)
70 #define UIOMOVE_FROMBUF(k, u) wrap32 ? \
71 uiomove_frombuf(& k ## 32, sizeof(k ## 32), u) : \
72 uiomove_frombuf(& k, sizeof(k), u)
74 #define PROC(d, w, t, r) proc_ ## d ## _ ## w(t, r)
75 #define UIOMOVE_FROMBUF(k, u) uiomove_frombuf(& k, sizeof(k), u)
79 procfs_doprocfpregs(PFS_FILL_ARGS)
84 #ifdef COMPAT_FREEBSD32
89 if (uio->uio_offset != 0)
94 if (p_candebug(td, p)) {
98 if (!P_SHOULDSTOP(p)) {
103 td2 = FIRST_THREAD_IN_PROC(p);
104 #ifdef COMPAT_FREEBSD32
105 if (SV_CURPROC_FLAG(SV_ILP32)) {
106 if (SV_PROC_FLAG(td2->td_proc, SV_ILP32) == 0) {
111 memset(&r32, 0, sizeof(r32));
114 memset(&r, 0, sizeof(r));
115 error = PROC(read, fpregs, td2, &r);
118 error = UIOMOVE_FROMBUF(r, uio);
121 if (error == 0 && uio->uio_rw == UIO_WRITE) {
122 if (!P_SHOULDSTOP(p))
126 error = PROC(write, fpregs, td2, &r);