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Diffstat (limited to '')
| -rw-r--r-- | tools/include/nolibc/time.h | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/tools/include/nolibc/time.h b/tools/include/nolibc/time.h new file mode 100644 index 000000000000..fc387940d51f --- /dev/null +++ b/tools/include/nolibc/time.h @@ -0,0 +1,216 @@ +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ +/* + * time function definitions for NOLIBC + * Copyright (C) 2017-2022 Willy Tarreau <w@1wt.eu> + */ + +/* make sure to include all global symbols */ +#include "nolibc.h" + +#ifndef _NOLIBC_TIME_H +#define _NOLIBC_TIME_H + +#include "std.h" +#include "arch.h" +#include "types.h" +#include "sys.h" + +#include <linux/signal.h> +#include <linux/time.h> + +static __inline__ +void __nolibc_timespec_user_to_kernel(const struct timespec *ts, struct __kernel_timespec *kts) +{ + kts->tv_sec = ts->tv_sec; + kts->tv_nsec = ts->tv_nsec; +} + +static __inline__ +void __nolibc_timespec_kernel_to_user(const struct __kernel_timespec *kts, struct timespec *ts) +{ + ts->tv_sec = kts->tv_sec; + ts->tv_nsec = kts->tv_nsec; +} + +/* + * int clock_getres(clockid_t clockid, struct timespec *res); + * int clock_gettime(clockid_t clockid, struct timespec *tp); + * int clock_settime(clockid_t clockid, const struct timespec *tp); + */ + +static __attribute__((unused)) +int sys_clock_getres(clockid_t clockid, struct timespec *res) +{ +#if defined(__NR_clock_getres) + return my_syscall2(__NR_clock_getres, clockid, res); +#elif defined(__NR_clock_getres_time64) + struct __kernel_timespec kres; + int ret; + + ret = my_syscall2(__NR_clock_getres_time64, clockid, &kres); + if (res) + __nolibc_timespec_kernel_to_user(&kres, res); + return ret; +#else + return __nolibc_enosys(__func__, clockid, res); +#endif +} + +static __attribute__((unused)) +int clock_getres(clockid_t clockid, struct timespec *res) +{ + return __sysret(sys_clock_getres(clockid, res)); +} + +static __attribute__((unused)) +int sys_clock_gettime(clockid_t clockid, struct timespec *tp) +{ +#if defined(__NR_clock_gettime) + return my_syscall2(__NR_clock_gettime, clockid, tp); +#elif defined(__NR_clock_gettime64) + struct __kernel_timespec ktp; + int ret; + + ret = my_syscall2(__NR_clock_gettime64, clockid, &ktp); + if (tp) + __nolibc_timespec_kernel_to_user(&ktp, tp); + return ret; +#else + return __nolibc_enosys(__func__, clockid, tp); +#endif +} + +static __attribute__((unused)) +int clock_gettime(clockid_t clockid, struct timespec *tp) +{ + return __sysret(sys_clock_gettime(clockid, tp)); +} + +static __attribute__((unused)) +int sys_clock_settime(clockid_t clockid, struct timespec *tp) +{ +#if defined(__NR_clock_settime) + return my_syscall2(__NR_clock_settime, clockid, tp); +#elif defined(__NR_clock_settime64) + struct __kernel_timespec ktp; + + __nolibc_timespec_user_to_kernel(tp, &ktp); + return my_syscall2(__NR_clock_settime64, clockid, &ktp); +#else + return __nolibc_enosys(__func__, clockid, tp); +#endif +} + +static __attribute__((unused)) +int clock_settime(clockid_t clockid, struct timespec *tp) +{ + return __sysret(sys_clock_settime(clockid, tp)); +} + + +static __inline__ +double difftime(time_t time1, time_t time2) +{ + return time1 - time2; +} + + +static __attribute__((unused)) +time_t time(time_t *tptr) +{ + struct timeval tv; + + /* note, cannot fail here */ + sys_gettimeofday(&tv, NULL); + + if (tptr) + *tptr = tv.tv_sec; + return tv.tv_sec; +} + + +/* + * int timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid); + * int timer_gettime(timer_t timerid, struct itimerspec *curr_value); + * int timer_settime(timer_t timerid, int flags, const struct itimerspec *new_value, struct itimerspec *old_value); + */ + +static __attribute__((unused)) +int sys_timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid) +{ + return my_syscall3(__NR_timer_create, clockid, evp, timerid); +} + +static __attribute__((unused)) +int timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid) +{ + return __sysret(sys_timer_create(clockid, evp, timerid)); +} + +static __attribute__((unused)) +int sys_timer_delete(timer_t timerid) +{ + return my_syscall1(__NR_timer_delete, timerid); +} + +static __attribute__((unused)) +int timer_delete(timer_t timerid) +{ + return __sysret(sys_timer_delete(timerid)); +} + +static __attribute__((unused)) +int sys_timer_gettime(timer_t timerid, struct itimerspec *curr_value) +{ +#if defined(__NR_timer_gettime) + return my_syscall2(__NR_timer_gettime, timerid, curr_value); +#elif defined(__NR_timer_gettime64) + struct __kernel_itimerspec kcurr_value; + int ret; + + ret = my_syscall2(__NR_timer_gettime64, timerid, &kcurr_value); + __nolibc_timespec_kernel_to_user(&kcurr_value.it_interval, &curr_value->it_interval); + __nolibc_timespec_kernel_to_user(&kcurr_value.it_value, &curr_value->it_value); + return ret; +#else + return __nolibc_enosys(__func__, timerid, curr_value); +#endif +} + +static __attribute__((unused)) +int timer_gettime(timer_t timerid, struct itimerspec *curr_value) +{ + return __sysret(sys_timer_gettime(timerid, curr_value)); +} + +static __attribute__((unused)) +int sys_timer_settime(timer_t timerid, int flags, + const struct itimerspec *new_value, struct itimerspec *old_value) +{ +#if defined(__NR_timer_settime) + return my_syscall4(__NR_timer_settime, timerid, flags, new_value, old_value); +#elif defined(__NR_timer_settime64) + struct __kernel_itimerspec knew_value, kold_value; + int ret; + + __nolibc_timespec_user_to_kernel(&new_value->it_value, &knew_value.it_value); + __nolibc_timespec_user_to_kernel(&new_value->it_interval, &knew_value.it_interval); + ret = my_syscall4(__NR_timer_settime64, timerid, flags, &knew_value, &kold_value); + if (old_value) { + __nolibc_timespec_kernel_to_user(&kold_value.it_interval, &old_value->it_interval); + __nolibc_timespec_kernel_to_user(&kold_value.it_value, &old_value->it_value); + } + return ret; +#else + return __nolibc_enosys(__func__, timerid, flags, new_value, old_value); +#endif +} + +static __attribute__((unused)) +int timer_settime(timer_t timerid, int flags, + const struct itimerspec *new_value, struct itimerspec *old_value) +{ + return __sysret(sys_timer_settime(timerid, flags, new_value, old_value)); +} + +#endif /* _NOLIBC_TIME_H */ |