2 * Copyright (c) 2011 Konstantin Belousov <kib@FreeBSD.org>
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/md_var.h>
40 #include <machine/pcb.h>
43 cpu_ptrace_xstate(struct thread *td, int req, void *addr, int data)
45 struct ptrace_xstate_info info;
53 case PT_GETXSTATE_OLD:
55 savefpu = (char *)(get_pcb_user_save_td(td) + 1);
56 error = copyout(savefpu, addr,
57 cpu_max_ext_state_size - sizeof(struct savefpu));
60 case PT_SETXSTATE_OLD:
61 if (data > cpu_max_ext_state_size - sizeof(struct savefpu)) {
65 savefpu = malloc(data, M_TEMP, M_WAITOK);
66 error = copyin(addr, savefpu, data);
69 error = fpusetxstate(td, savefpu, data);
71 free(savefpu, M_TEMP);
74 case PT_GETXSTATE_INFO:
75 if (data != sizeof(info)) {
79 info.xsave_len = cpu_max_ext_state_size;
80 info.xsave_mask = xsave_mask;
81 error = copyout(&info, addr, data);
86 savefpu = (char *)(get_pcb_user_save_td(td));
87 error = copyout(savefpu, addr, cpu_max_ext_state_size);
91 if (data < sizeof(struct savefpu) ||
92 data > cpu_max_ext_state_size) {
96 savefpu = malloc(data, M_TEMP, M_WAITOK);
97 error = copyin(addr, savefpu, data);
99 error = fpusetregs(td, (struct savefpu *)savefpu,
100 savefpu + sizeof(struct savefpu), data -
101 sizeof(struct savefpu));
102 free(savefpu, M_TEMP);
113 #ifdef COMPAT_FREEBSD32
114 #define PT_I386_GETXMMREGS (PT_FIRSTMACH + 0)
115 #define PT_I386_SETXMMREGS (PT_FIRSTMACH + 1)
118 cpu32_ptrace(struct thread *td, int req, void *addr, int data)
120 struct savefpu *fpstate;
124 case PT_I386_GETXMMREGS:
126 error = copyout(get_pcb_user_save_td(td), addr,
130 case PT_I386_SETXMMREGS:
132 fpstate = get_pcb_user_save_td(td);
133 error = copyin(addr, fpstate, sizeof(*fpstate));
134 fpstate->sv_env.en_mxcsr &= cpu_mxcsr_mask;
137 case PT_GETXSTATE_OLD:
138 case PT_SETXSTATE_OLD:
139 case PT_GETXSTATE_INFO:
142 error = cpu_ptrace_xstate(td, req, addr, data);
155 cpu_ptrace(struct thread *td, int req, void *addr, int data)
159 #ifdef COMPAT_FREEBSD32
160 if (SV_CURPROC_FLAG(SV_ILP32))
161 return (cpu32_ptrace(td, req, addr, data));
164 /* Support old values of PT_GETXSTATE_OLD and PT_SETXSTATE_OLD. */
165 if (req == PT_FIRSTMACH + 0)
166 req = PT_GETXSTATE_OLD;
167 if (req == PT_FIRSTMACH + 1)
168 req = PT_SETXSTATE_OLD;
171 case PT_GETXSTATE_OLD:
172 case PT_SETXSTATE_OLD:
173 case PT_GETXSTATE_INFO:
176 error = cpu_ptrace_xstate(td, req, addr, data);