cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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vgettimeofday.c (1899B)

      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