2 * Copyright (c) 2017 John Baldwin <jhb@FreeBSD.org>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/types.h>
33 #include <sys/ptrace.h>
35 #include <machine/pcb.h>
37 #include <machine/vfp.h>
42 get_arm_vfp(struct regset *rs, struct thread *td, void *buf, size_t *sizep)
45 KASSERT(*sizep == sizeof(mcontext_vfp_t),
46 ("%s: invalid size", __func__));
47 get_vfpcontext(td, buf);
49 *sizep = sizeof(mcontext_vfp_t);
54 set_arm_vfp(struct regset *rs, struct thread *td, void *buf,
57 KASSERT(size == sizeof(mcontext_vfp_t), ("%s: invalid size", __func__));
58 set_vfpcontext(td, buf);
62 static struct regset regset_arm_vfp = {
64 .size = sizeof(mcontext_vfp_t),
68 ELF_REGSET(regset_arm_vfp);
72 get_arm_tls(struct regset *rs, struct thread *td, void *buf,
76 KASSERT(*sizep == sizeof(td->td_pcb->pcb_regs.sf_tpidrurw),
77 ("%s: invalid size", __func__));
78 memcpy(buf, &td->td_pcb->pcb_regs.sf_tpidrurw,
79 sizeof(td->td_pcb->pcb_regs.sf_tpidrurw));
81 *sizep = sizeof(td->td_pcb->pcb_regs.sf_tpidrurw);
86 static struct regset regset_arm_tls = {
88 .size = sizeof(uint32_t),
91 ELF_REGSET(regset_arm_tls);
94 cpu_ptrace(struct thread *td, int req, void *addr, int data)
104 get_vfpcontext(td, &vfp);
105 error = copyout(&vfp, addr, sizeof(vfp));
108 error = copyin(addr, &vfp, sizeof(vfp));
110 set_vfpcontext(td, &vfp);