LXR linux/arch/mips/vdso/vgettimeofday.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * MIPS64 and compat userspace implementations of gettimeofday()
   4 * and similar.
   5 *
   6 * Copyright (C) 2015 Imagination Technologies
   7 * Copyright (C) 2018 ARM Limited
   8 *
   9 */
  10#include <linux/time.h>
  11#include <linux/types.h>
  12
  13#if _MIPS_SIM != _MIPS_SIM_ABI64
  14int __vdso_clock_gettime(clockid_t clock,
  15                         struct old_timespec32 *ts)
  16{
  17        return __cvdso_clock_gettime32(clock, ts);
  18}
  19
  20#ifdef CONFIG_MIPS_CLOCK_VSYSCALL
  21
  22/*
  23 * This is behind the ifdef so that we don't provide the symbol when there's no
  24 * possibility of there being a usable clocksource, because there's nothing we
  25 * can do without it. When libc fails the symbol lookup it should fall back on
  26 * the standard syscall path.
  27 */
  28int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
  29                        struct timezone *tz)
  30{
  31        return __cvdso_gettimeofday(tv, tz);
  32}
  33
  34#endif /* CONFIG_MIPS_CLOCK_VSYSCALL */
  35
  36int __vdso_clock_getres(clockid_t clock_id,
  37                        struct old_timespec32 *res)
  38{
  39        return __cvdso_clock_getres_time32(clock_id, res);
  40}
  41
  42int __vdso_clock_gettime64(clockid_t clock,
  43                           struct __kernel_timespec *ts)
  44{
  45        return __cvdso_clock_gettime(clock, ts);
  46}
  47
  48#else
  49
  50int __vdso_clock_gettime(clockid_t clock,
  51                         struct __kernel_timespec *ts)
  52{
  53        return __cvdso_clock_gettime(clock, ts);
  54}
  55
  56#ifdef CONFIG_MIPS_CLOCK_VSYSCALL
  57
  58/*
  59 * This is behind the ifdef so that we don't provide the symbol when there's no
  60 * possibility of there being a usable clocksource, because there's nothing we
  61 * can do without it. When libc fails the symbol lookup it should fall back on
  62 * the standard syscall path.
  63 */
  64int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
  65                        struct timezone *tz)
  66{
  67        return __cvdso_gettimeofday(tv, tz);
  68}
  69
  70#endif /* CONFIG_MIPS_CLOCK_VSYSCALL */
  71
  72int __vdso_clock_getres(clockid_t clock_id,
  73                        struct __kernel_timespec *res)
  74{
  75        return __cvdso_clock_getres(clock_id, res);
  76}
  77
  78#endif
  79