1 /* Copyright (C) 2003-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation; either version 2.1 of the
7 License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If
16 not, see <https://www.gnu.org/licenses/>. */
17
18 #include <errno.h>
19 #include <stdlib.h>
20 #include <time.h>
21 #include <sysdep.h>
22 #include <kernel-features.h>
23 #include "kernel-posix-timers.h"
24 #include <shlib-compat.h>
25
26 #if !TIMER_T_WAS_INT_COMPAT
27 int
___timer_gettime64(timer_t timerid,struct __itimerspec64 * value)28 ___timer_gettime64 (timer_t timerid, struct __itimerspec64 *value)
29 {
30 kernel_timer_t ktimerid = timerid_to_kernel_timer (timerid);
31
32 # ifndef __NR_timer_gettime64
33 # define __NR_timer_gettime64 __NR_timer_gettime
34 # endif
35 int ret = INLINE_SYSCALL_CALL (timer_gettime64, ktimerid, value);
36 # ifndef __ASSUME_TIME64_SYSCALLS
37 if (ret == 0 || errno != ENOSYS)
38 return ret;
39
40 struct itimerspec its32;
41 ret = INLINE_SYSCALL_CALL (timer_gettime, ktimerid, &its32);
42 if (ret == 0)
43 {
44 value->it_interval = valid_timespec_to_timespec64 (its32.it_interval);
45 value->it_value = valid_timespec_to_timespec64 (its32.it_value);
46 }
47 # endif
48 return ret;
49 }
50
51 # if __TIMESIZE == 64
52 versioned_symbol (libc, ___timer_gettime64, timer_gettime, GLIBC_2_34);
53 # if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_34)
54 compat_symbol (librt, ___timer_gettime64, timer_gettime, GLIBC_2_2);
55 # endif
56
57 # else /* __TIMESIZE != 64 */
58 libc_hidden_ver (___timer_gettime64, __timer_gettime64)
59 versioned_symbol (libc, ___timer_gettime64, __timer_gettime64, GLIBC_2_34);
60
61 int
__timer_gettime(timer_t timerid,struct itimerspec * value)62 __timer_gettime (timer_t timerid, struct itimerspec *value)
63 {
64 struct __itimerspec64 its64;
65 int retval = __timer_gettime64 (timerid, &its64);
66 if (retval == 0)
67 {
68 value->it_interval = valid_timespec64_to_timespec (its64.it_interval);
69 value->it_value = valid_timespec64_to_timespec (its64.it_value);
70 }
71
72 return retval;
73 }
74 versioned_symbol (libc, __timer_gettime, timer_gettime, GLIBC_2_34);
75
76 # if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_34)
77 compat_symbol (librt, __timer_gettime, timer_gettime, GLIBC_2_2);
78 # endif
79 # endif /* __TIMESIZE != 64 */
80
81 #else /* TIMER_T_WAS_INT_COMPAT */
82
83 extern __typeof (timer_gettime) __timer_gettime_new;
libc_hidden_proto(__timer_gettime_new)84 libc_hidden_proto (__timer_gettime_new)
85
86 int
87 ___timer_gettime_new (timer_t timerid, struct itimerspec *value)
88 {
89 kernel_timer_t ktimerid = timerid_to_kernel_timer (timerid);
90
91 return INLINE_SYSCALL_CALL (timer_gettime, ktimerid, value);
92 }
93 versioned_symbol (libc, ___timer_gettime_new, timer_gettime, GLIBC_2_34);
94 libc_hidden_ver (___timer_gettime_new, __timer_gettime_new)
95
96 # if OTHER_SHLIB_COMPAT (librt, GLIBC_2_3_3, GLIBC_2_34)
97 compat_symbol (librt, ___timer_gettime_new, timer_gettime, GLIBC_2_3_3);
98 # endif
99
100 # if OTHER_SHLIB_COMPAT (librt, GLIBC_2_2, GLIBC_2_3_3)
101 int
__timer_gettime_old(int timerid,struct itimerspec * value)102 __timer_gettime_old (int timerid, struct itimerspec *value)
103 {
104 return __timer_gettime_new (__timer_compat_list[timerid], value);
105 }
106 compat_symbol (librt, __timer_gettime_old, timer_gettime, GLIBC_2_2);
107 # endif
108
109 #endif /* TIMER_T_WAS_INT_COMPAT */
110