1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Fast user context implementation of clock_gettime, gettimeofday, and time.
 4 *
 5 * Copyright 2006 Andi Kleen, SUSE Labs.
 6 * Copyright 2019 ARM Limited
 7 *
 8 * 32 Bit compat layer by Stefani Seibold <stefani@seibold.net>
 9 *  sponsored by Rohde & Schwarz GmbH & Co. KG Munich/Germany
10 */
11#include <linux/time.h>
12#include <linux/kernel.h>
13#include <linux/types.h>
 
14
15#include "../../../../lib/vdso/gettimeofday.c"
16
17extern int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz);
18extern __kernel_old_time_t __vdso_time(__kernel_old_time_t *t);
19
20int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
21{
22	return __cvdso_gettimeofday(tv, tz);
23}
24
25int gettimeofday(struct __kernel_old_timeval *, struct timezone *)
26	__attribute__((weak, alias("__vdso_gettimeofday")));
27
28__kernel_old_time_t __vdso_time(__kernel_old_time_t *t)
29{
30	return __cvdso_time(t);
31}
32
33__kernel_old_time_t time(__kernel_old_time_t *t)	__attribute__((weak, alias("__vdso_time")));
34
35
36#if defined(CONFIG_X86_64) && !defined(BUILD_VDSO32_64)
37/* both 64-bit and x32 use these */
38extern int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts);
39extern int __vdso_clock_getres(clockid_t clock, struct __kernel_timespec *res);
40
41int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts)
42{
43	return __cvdso_clock_gettime(clock, ts);
44}
45
46int clock_gettime(clockid_t, struct __kernel_timespec *)
47	__attribute__((weak, alias("__vdso_clock_gettime")));
48
49int __vdso_clock_getres(clockid_t clock,
50			struct __kernel_timespec *res)
51{
52	return __cvdso_clock_getres(clock, res);
53}
54int clock_getres(clockid_t, struct __kernel_timespec *)
55	__attribute__((weak, alias("__vdso_clock_getres")));
56
57#else
58/* i386 only */
59extern int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts);
60extern int __vdso_clock_getres(clockid_t clock, struct old_timespec32 *res);
61
62int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts)
63{
64	return __cvdso_clock_gettime32(clock, ts);
65}
66
67int clock_gettime(clockid_t, struct old_timespec32 *)
68	__attribute__((weak, alias("__vdso_clock_gettime")));
69
70int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts)
71{
72	return __cvdso_clock_gettime(clock, ts);
73}
74
75int clock_gettime64(clockid_t, struct __kernel_timespec *)
76	__attribute__((weak, alias("__vdso_clock_gettime64")));
77
78int __vdso_clock_getres(clockid_t clock, struct old_timespec32 *res)
79{
80	return __cvdso_clock_getres_time32(clock, res);
81}
82
83int clock_getres(clockid_t, struct old_timespec32 *)
84	__attribute__((weak, alias("__vdso_clock_getres")));
85#endif

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Fast user context implementation of clock_gettime, gettimeofday, and time.
 4 *
 5 * Copyright 2006 Andi Kleen, SUSE Labs.
 6 * Copyright 2019 ARM Limited
 7 *
 8 * 32 Bit compat layer by Stefani Seibold <stefani@seibold.net>
 9 *  sponsored by Rohde & Schwarz GmbH & Co. KG Munich/Germany
10 */
11#include <linux/time.h>
12#include <linux/kernel.h>
13#include <linux/types.h>
14#include <vdso/gettime.h>
15
16#include "../../../../lib/vdso/gettimeofday.c"
17
 
 
 
18int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
19{
20	return __cvdso_gettimeofday(tv, tz);
21}
22
23int gettimeofday(struct __kernel_old_timeval *, struct timezone *)
24	__attribute__((weak, alias("__vdso_gettimeofday")));
25
26__kernel_old_time_t __vdso_time(__kernel_old_time_t *t)
27{
28	return __cvdso_time(t);
29}
30
31__kernel_old_time_t time(__kernel_old_time_t *t)	__attribute__((weak, alias("__vdso_time")));
32
33
34#if defined(CONFIG_X86_64) && !defined(BUILD_VDSO32_64)
35/* both 64-bit and x32 use these */
 
 
 
36int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts)
37{
38	return __cvdso_clock_gettime(clock, ts);
39}
40
41int clock_gettime(clockid_t, struct __kernel_timespec *)
42	__attribute__((weak, alias("__vdso_clock_gettime")));
43
44int __vdso_clock_getres(clockid_t clock,
45			struct __kernel_timespec *res)
46{
47	return __cvdso_clock_getres(clock, res);
48}
49int clock_getres(clockid_t, struct __kernel_timespec *)
50	__attribute__((weak, alias("__vdso_clock_getres")));
51
52#else
53/* i386 only */
 
 
 
54int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts)
55{
56	return __cvdso_clock_gettime32(clock, ts);
57}
58
59int clock_gettime(clockid_t, struct old_timespec32 *)
60	__attribute__((weak, alias("__vdso_clock_gettime")));
61
62int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts)
63{
64	return __cvdso_clock_gettime(clock, ts);
65}
66
67int clock_gettime64(clockid_t, struct __kernel_timespec *)
68	__attribute__((weak, alias("__vdso_clock_gettime64")));
69
70int __vdso_clock_getres(clockid_t clock, struct old_timespec32 *res)
71{
72	return __cvdso_clock_getres_time32(clock, res);
73}
74
75int clock_getres(clockid_t, struct old_timespec32 *)
76	__attribute__((weak, alias("__vdso_clock_getres")));
77#endif