linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * Dummy stubs used when CONFIG_POSIX_TIMERS=n

 *

 * Created by:  Nicolas Pitre, July 2016

 * Copyright:   (C) 2016 Linaro Limited

 */

​

#include <linux/linkage.h>

#include <linux/kernel.h>

#include <linux/sched.h>

#include <linux/errno.h>

#include <linux/syscalls.h>

#include <linux/ktime.h>

#include <linux/timekeeping.h>

#include <linux/posix-timers.h>

#include <linux/compat.h>

​

#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER

/* Architectures may override SYS_NI and COMPAT_SYS_NI */

#include <asm/syscall_wrapper.h>

#endif

​

asmlinkage long sys_ni_posix_timers(void)

{

    pr_err_once("process %d (%s) attempted a POSIX timer syscall "

            "while CONFIG_POSIX_TIMERS is not set\n",

            current->pid, current->comm);

    return -ENOSYS;

}

​

#ifndef SYS_NI

#define SYS_NI(name)  SYSCALL_ALIAS(sys_##name, sys_ni_posix_timers)

#endif

​

#ifndef COMPAT_SYS_NI

#define COMPAT_SYS_NI(name)  SYSCALL_ALIAS(compat_sys_##name, sys_ni_posix_timers)

#endif

​

SYS_NI(timer_create);

SYS_NI(timer_gettime);

SYS_NI(timer_getoverrun);

SYS_NI(timer_settime);

SYS_NI(timer_delete);

SYS_NI(clock_adjtime);

SYS_NI(getitimer);

SYS_NI(setitimer);

SYS_NI(clock_adjtime32);

#ifdef __ARCH_WANT_SYS_ALARM

SYS_NI(alarm);

#endif

​

/*

 * We preserve minimal support for CLOCK_REALTIME and CLOCK_MONOTONIC

 * as it is easy to remain compatible with little code. CLOCK_BOOTTIME

 * is also included for convenience as at least systemd uses it.

 */

​

SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,

        const struct __kernel_timespec __user *, tp)

{

    struct timespec64 new_tp;

​