1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
/*
* time function definitions for NOLIBC
* Copyright (C) 2017-2022 Willy Tarreau <w@1wt.eu>
*/
/* make sure to include all global symbols */
#include "nolibc.h"
#ifndef _NOLIBC_TIME_H
#define _NOLIBC_TIME_H
#include "std.h"
#include "arch.h"
#include "types.h"
#include "sys.h"
#include <linux/signal.h>
#include <linux/time.h>
static __inline__
void __nolibc_timespec_user_to_kernel(const struct timespec *ts, struct __kernel_timespec *kts)
{
kts->tv_sec = ts->tv_sec;
kts->tv_nsec = ts->tv_nsec;
}
static __inline__
void __nolibc_timespec_kernel_to_user(const struct __kernel_timespec *kts, struct timespec *ts)
{
ts->tv_sec = kts->tv_sec;
ts->tv_nsec = kts->tv_nsec;
}
/*
* int clock_getres(clockid_t clockid, struct timespec *res);
* int clock_gettime(clockid_t clockid, struct timespec *tp);
* int clock_settime(clockid_t clockid, const struct timespec *tp);
*/
static __attribute__((unused))
int sys_clock_getres(clockid_t clockid, struct timespec *res)
{
#if defined(__NR_clock_getres)
return my_syscall2(__NR_clock_getres, clockid, res);
#elif defined(__NR_clock_getres_time64)
struct __kernel_timespec kres;
int ret;
ret = my_syscall2(__NR_clock_getres_time64, clockid, &kres);
if (res)
__nolibc_timespec_kernel_to_user(&kres, res);
return ret;
#else
return __nolibc_enosys(__func__, clockid, res);
#endif
}
static __attribute__((unused))
int clock_getres(clockid_t clockid, struct timespec *res)
{
return __sysret(sys_clock_getres(clockid, res));
}
static __attribute__((unused))
int sys_clock_gettime(clockid_t clockid, struct timespec *tp)
{
#if defined(__NR_clock_gettime)
return my_syscall2(__NR_clock_gettime, clockid, tp);
#elif defined(__NR_clock_gettime64)
struct __kernel_timespec ktp;
int ret;
ret = my_syscall2(__NR_clock_gettime64, clockid, &ktp);
if (tp)
__nolibc_timespec_kernel_to_user(&ktp, tp);
return ret;
#else
return __nolibc_enosys(__func__, clockid, tp);
#endif
}
static __attribute__((unused))
int clock_gettime(clockid_t clockid, struct timespec *tp)
{
return __sysret(sys_clock_gettime(clockid, tp));
}
static __attribute__((unused))
int sys_clock_settime(clockid_t clockid, struct timespec *tp)
{
#if defined(__NR_clock_settime)
return my_syscall2(__NR_clock_settime, clockid, tp);
#elif defined(__NR_clock_settime64)
struct __kernel_timespec ktp;
__nolibc_timespec_user_to_kernel(tp, &ktp);
return my_syscall2(__NR_clock_settime64, clockid, &ktp);
#else
return __nolibc_enosys(__func__, clockid, tp);
#endif
}
static __attribute__((unused))
int clock_settime(clockid_t clockid, struct timespec *tp)
{
return __sysret(sys_clock_settime(clockid, tp));
}
static __inline__
double difftime(time_t time1, time_t time2)
{
return time1 - time2;
}
static __attribute__((unused))
time_t time(time_t *tptr)
{
struct timeval tv;
/* note, cannot fail here */
sys_gettimeofday(&tv, NULL);
if (tptr)
*tptr = tv.tv_sec;
return tv.tv_sec;
}
/*
* int timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid);
* int timer_gettime(timer_t timerid, struct itimerspec *curr_value);
* int timer_settime(timer_t timerid, int flags, const struct itimerspec *new_value, struct itimerspec *old_value);
*/
static __attribute__((unused))
int sys_timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid)
{
return my_syscall3(__NR_timer_create, clockid, evp, timerid);
}
static __attribute__((unused))
int timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid)
{
return __sysret(sys_timer_create(clockid, evp, timerid));
}
static __attribute__((unused))
int sys_timer_delete(timer_t timerid)
{
return my_syscall1(__NR_timer_delete, timerid);
}
static __attribute__((unused))
int timer_delete(timer_t timerid)
{
return __sysret(sys_timer_delete(timerid));
}
static __attribute__((unused))
int sys_timer_gettime(timer_t timerid, struct itimerspec *curr_value)
{
#if defined(__NR_timer_gettime)
return my_syscall2(__NR_timer_gettime, timerid, curr_value);
#elif defined(__NR_timer_gettime64)
struct __kernel_itimerspec kcurr_value;
int ret;
ret = my_syscall2(__NR_timer_gettime64, timerid, &kcurr_value);
__nolibc_timespec_kernel_to_user(&kcurr_value.it_interval, &curr_value->it_interval);
__nolibc_timespec_kernel_to_user(&kcurr_value.it_value, &curr_value->it_value);
return ret;
#else
return __nolibc_enosys(__func__, timerid, curr_value);
#endif
}
static __attribute__((unused))
int timer_gettime(timer_t timerid, struct itimerspec *curr_value)
{
return __sysret(sys_timer_gettime(timerid, curr_value));
}
static __attribute__((unused))
int sys_timer_settime(timer_t timerid, int flags,
const struct itimerspec *new_value, struct itimerspec *old_value)
{
#if defined(__NR_timer_settime)
return my_syscall4(__NR_timer_settime, timerid, flags, new_value, old_value);
#elif defined(__NR_timer_settime64)
struct __kernel_itimerspec knew_value, kold_value;
int ret;
__nolibc_timespec_user_to_kernel(&new_value->it_value, &knew_value.it_value);
__nolibc_timespec_user_to_kernel(&new_value->it_interval, &knew_value.it_interval);
ret = my_syscall4(__NR_timer_settime64, timerid, flags, &knew_value, &kold_value);
if (old_value) {
__nolibc_timespec_kernel_to_user(&kold_value.it_interval, &old_value->it_interval);
__nolibc_timespec_kernel_to_user(&kold_value.it_value, &old_value->it_value);
}
return ret;
#else
return __nolibc_enosys(__func__, timerid, flags, new_value, old_value);
#endif
}
static __attribute__((unused))
int timer_settime(timer_t timerid, int flags,
const struct itimerspec *new_value, struct itimerspec *old_value)
{
return __sysret(sys_timer_settime(timerid, flags, new_value, old_value));
}
#endif /* _NOLIBC_TIME_H */
|
