2 * Copyright (c) 2014 Justin Hibbits
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
31 #include "opt_compat.h"
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/malloc.h>
37 #include <sys/ptrace.h>
38 #include <sys/sysent.h>
39 #include <machine/altivec.h>
40 #include <machine/cpu.h>
41 #include <machine/md_var.h>
42 #include <machine/pcb.h>
45 cpu_ptrace(struct thread *td, int req, void *addr, int data)
53 bzero(&vec, sizeof(vec));
58 if (!(cpu_features & PPC_FEATURE_HAS_ALTIVEC))
61 if (pcb->pcb_flags & PCB_VEC) {
63 memcpy(&vec, &pcb->pcb_vec, sizeof(vec));
65 error = copyout(&vec, addr, sizeof(vec));
68 if (!(cpu_features & PPC_FEATURE_HAS_ALTIVEC))
70 error = copyin(addr, &vec, sizeof(vec));
72 pcb->pcb_flags |= PCB_VEC;
73 memcpy(&pcb->pcb_vec, &vec, sizeof(vec));