1/*-
2 * Copyright (c) 2011 Konstantin Belousov <kib@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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
24 * SUCH DAMAGE.
25 *
26 */
27
28#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2011 Konstantin Belousov <kib@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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
24 * SUCH DAMAGE.
25 *
26 */
27
28#include <sys/cdefs.h>
|
29__FBSDID("$FreeBSD: head/sys/amd64/amd64/ptrace_machdep.c 274817 2014-11-21 20:53:17Z jhb $");
| 29__FBSDID("$FreeBSD: head/sys/amd64/amd64/ptrace_machdep.c 278976 2015-02-18 23:34:03Z jhb $");
|
30
31#include "opt_compat.h"
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/malloc.h>
36#include <sys/proc.h>
37#include <sys/ptrace.h>
38#include <sys/sysent.h>
39#include <machine/md_var.h>
40#include <machine/pcb.h>
41
42static int
43cpu_ptrace_xstate(struct thread *td, int req, void *addr, int data)
44{
45 struct ptrace_xstate_info info;
46 char *savefpu;
47 int error;
48
49 if (!use_xsave)
50 return (EOPNOTSUPP);
51
52 switch (req) {
53 case PT_GETXSTATE_OLD:
54 fpugetregs(td);
55 savefpu = (char *)(get_pcb_user_save_td(td) + 1);
56 error = copyout(savefpu, addr,
57 cpu_max_ext_state_size - sizeof(struct savefpu));
58 break;
59
60 case PT_SETXSTATE_OLD:
61 if (data > cpu_max_ext_state_size - sizeof(struct savefpu)) {
62 error = EINVAL;
63 break;
64 }
65 savefpu = malloc(data, M_TEMP, M_WAITOK);
66 error = copyin(addr, savefpu, data);
67 if (error == 0) {
68 fpugetregs(td);
69 error = fpusetxstate(td, savefpu, data);
70 }
71 free(savefpu, M_TEMP);
72 break;
73
74 case PT_GETXSTATE_INFO:
75 if (data != sizeof(info)) {
76 error = EINVAL;
77 break;
78 }
79 info.xsave_len = cpu_max_ext_state_size;
80 info.xsave_mask = xsave_mask;
81 error = copyout(&info, addr, data);
82 break;
83
84 case PT_GETXSTATE:
85 fpugetregs(td);
86 savefpu = (char *)(get_pcb_user_save_td(td));
87 error = copyout(savefpu, addr, cpu_max_ext_state_size);
88 break;
89
90 case PT_SETXSTATE:
| 30
31#include "opt_compat.h"
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/malloc.h>
36#include <sys/proc.h>
37#include <sys/ptrace.h>
38#include <sys/sysent.h>
39#include <machine/md_var.h>
40#include <machine/pcb.h>
41
42static int
43cpu_ptrace_xstate(struct thread *td, int req, void *addr, int data)
44{
45 struct ptrace_xstate_info info;
46 char *savefpu;
47 int error;
48
49 if (!use_xsave)
50 return (EOPNOTSUPP);
51
52 switch (req) {
53 case PT_GETXSTATE_OLD:
54 fpugetregs(td);
55 savefpu = (char *)(get_pcb_user_save_td(td) + 1);
56 error = copyout(savefpu, addr,
57 cpu_max_ext_state_size - sizeof(struct savefpu));
58 break;
59
60 case PT_SETXSTATE_OLD:
61 if (data > cpu_max_ext_state_size - sizeof(struct savefpu)) {
62 error = EINVAL;
63 break;
64 }
65 savefpu = malloc(data, M_TEMP, M_WAITOK);
66 error = copyin(addr, savefpu, data);
67 if (error == 0) {
68 fpugetregs(td);
69 error = fpusetxstate(td, savefpu, data);
70 }
71 free(savefpu, M_TEMP);
72 break;
73
74 case PT_GETXSTATE_INFO:
75 if (data != sizeof(info)) {
76 error = EINVAL;
77 break;
78 }
79 info.xsave_len = cpu_max_ext_state_size;
80 info.xsave_mask = xsave_mask;
81 error = copyout(&info, addr, data);
82 break;
83
84 case PT_GETXSTATE:
85 fpugetregs(td);
86 savefpu = (char *)(get_pcb_user_save_td(td));
87 error = copyout(savefpu, addr, cpu_max_ext_state_size);
88 break;
89
90 case PT_SETXSTATE:
|
91 if (data > cpu_max_ext_state_size) {
| 91 if (data < sizeof(struct savefpu) ||
92 data > cpu_max_ext_state_size) {
|
92 error = EINVAL;
93 break;
94 }
95 savefpu = malloc(data, M_TEMP, M_WAITOK);
96 error = copyin(addr, savefpu, data);
97 if (error == 0)
98 error = fpusetregs(td, (struct savefpu *)savefpu,
99 savefpu + sizeof(struct savefpu), data -
100 sizeof(struct savefpu));
101 free(savefpu, M_TEMP);
102 break;
103
104 default:
105 error = EINVAL;
106 break;
107 }
108
109 return (error);
110}
111
112#ifdef COMPAT_FREEBSD32
113#define PT_I386_GETXMMREGS (PT_FIRSTMACH + 0)
114#define PT_I386_SETXMMREGS (PT_FIRSTMACH + 1)
115
116static int
117cpu32_ptrace(struct thread *td, int req, void *addr, int data)
118{
119 struct savefpu *fpstate;
120 int error;
121
122 switch (req) {
123 case PT_I386_GETXMMREGS:
124 fpugetregs(td);
125 error = copyout(get_pcb_user_save_td(td), addr,
126 sizeof(*fpstate));
127 break;
128
129 case PT_I386_SETXMMREGS:
130 fpugetregs(td);
131 fpstate = get_pcb_user_save_td(td);
132 error = copyin(addr, fpstate, sizeof(*fpstate));
133 fpstate->sv_env.en_mxcsr &= cpu_mxcsr_mask;
134 break;
135
136 case PT_GETXSTATE_OLD:
137 case PT_SETXSTATE_OLD:
138 case PT_GETXSTATE_INFO:
139 case PT_GETXSTATE:
140 case PT_SETXSTATE:
141 error = cpu_ptrace_xstate(td, req, addr, data);
142 break;
143
144 default:
145 error = EINVAL;
146 break;
147 }
148
149 return (error);
150}
151#endif
152
153int
154cpu_ptrace(struct thread *td, int req, void *addr, int data)
155{
156 int error;
157
158#ifdef COMPAT_FREEBSD32
159 if (SV_CURPROC_FLAG(SV_ILP32))
160 return (cpu32_ptrace(td, req, addr, data));
161#endif
162
163 /* Support old values of PT_GETXSTATE_OLD and PT_SETXSTATE_OLD. */
164 if (req == PT_FIRSTMACH + 0)
165 req = PT_GETXSTATE_OLD;
166 if (req == PT_FIRSTMACH + 1)
167 req = PT_SETXSTATE_OLD;
168
169 switch (req) {
170 case PT_GETXSTATE_OLD:
171 case PT_SETXSTATE_OLD:
172 case PT_GETXSTATE_INFO:
173 case PT_GETXSTATE:
174 case PT_SETXSTATE:
175 error = cpu_ptrace_xstate(td, req, addr, data);
176 break;
177
178 default:
179 error = EINVAL;
180 break;
181 }
182
183 return (error);
184}
| 93 error = EINVAL;
94 break;
95 }
96 savefpu = malloc(data, M_TEMP, M_WAITOK);
97 error = copyin(addr, savefpu, data);
98 if (error == 0)
99 error = fpusetregs(td, (struct savefpu *)savefpu,
100 savefpu + sizeof(struct savefpu), data -
101 sizeof(struct savefpu));
102 free(savefpu, M_TEMP);
103 break;
104
105 default:
106 error = EINVAL;
107 break;
108 }
109
110 return (error);
111}
112
113#ifdef COMPAT_FREEBSD32
114#define PT_I386_GETXMMREGS (PT_FIRSTMACH + 0)
115#define PT_I386_SETXMMREGS (PT_FIRSTMACH + 1)
116
117static int
118cpu32_ptrace(struct thread *td, int req, void *addr, int data)
119{
120 struct savefpu *fpstate;
121 int error;
122
123 switch (req) {
124 case PT_I386_GETXMMREGS:
125 fpugetregs(td);
126 error = copyout(get_pcb_user_save_td(td), addr,
127 sizeof(*fpstate));
128 break;
129
130 case PT_I386_SETXMMREGS:
131 fpugetregs(td);
132 fpstate = get_pcb_user_save_td(td);
133 error = copyin(addr, fpstate, sizeof(*fpstate));
134 fpstate->sv_env.en_mxcsr &= cpu_mxcsr_mask;
135 break;
136
137 case PT_GETXSTATE_OLD:
138 case PT_SETXSTATE_OLD:
139 case PT_GETXSTATE_INFO:
140 case PT_GETXSTATE:
141 case PT_SETXSTATE:
142 error = cpu_ptrace_xstate(td, req, addr, data);
143 break;
144
145 default:
146 error = EINVAL;
147 break;
148 }
149
150 return (error);
151}
152#endif
153
154int
155cpu_ptrace(struct thread *td, int req, void *addr, int data)
156{
157 int error;
158
159#ifdef COMPAT_FREEBSD32
160 if (SV_CURPROC_FLAG(SV_ILP32))
161 return (cpu32_ptrace(td, req, addr, data));
162#endif
163
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;
169
170 switch (req) {
171 case PT_GETXSTATE_OLD:
172 case PT_SETXSTATE_OLD:
173 case PT_GETXSTATE_INFO:
174 case PT_GETXSTATE:
175 case PT_SETXSTATE:
176 error = cpu_ptrace_xstate(td, req, addr, data);
177 break;
178
179 default:
180 error = EINVAL;
181 break;
182 }
183
184 return (error);
185}
|