Files
linux/tools/include/nolibc/sys/timerfd.h
Thomas Weißschuh f3ed932644 selftests/nolibc: add static assertions around time types handling
The nolibc system call wrappers expect the libc types to be compatible
to the kernel types.

Make sure these expectations hold at compile-time.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20251220-nolibc-uapi-types-v3-14-c662992f75d7@weissschuh.net
2026-01-06 12:08:08 +01:00

72 lines
1.8 KiB
C

/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
/*
* timerfd definitions for NOLIBC
* Copyright (C) 2025 Thomas Weißschuh <thomas.weissschuh@linutronix.de>
*/
/* make sure to include all global symbols */
#include "../nolibc.h"
#ifndef _NOLIBC_SYS_TIMERFD_H
#define _NOLIBC_SYS_TIMERFD_H
#include "../sys.h"
#include "../time.h"
#include <linux/timerfd.h>
static __attribute__((unused))
int sys_timerfd_create(int clockid, int flags)
{
return my_syscall2(__NR_timerfd_create, clockid, flags);
}
static __attribute__((unused))
int timerfd_create(int clockid, int flags)
{
return __sysret(sys_timerfd_create(clockid, flags));
}
static __attribute__((unused))
int sys_timerfd_gettime(int fd, struct itimerspec *curr_value)
{
#if defined(__NR_timerfd_gettime64)
__nolibc_assert_time64_type(curr_value->it_value.tv_sec);
return my_syscall2(__NR_timerfd_gettime64, fd, curr_value);
#else
__nolibc_assert_native_time64();
return my_syscall2(__NR_timerfd_gettime, fd, curr_value);
#endif
}
static __attribute__((unused))
int timerfd_gettime(int fd, struct itimerspec *curr_value)
{
return __sysret(sys_timerfd_gettime(fd, curr_value));
}
static __attribute__((unused))
int sys_timerfd_settime(int fd, int flags,
const struct itimerspec *new_value, struct itimerspec *old_value)
{
#if defined(__NR_timerfd_settime64)
__nolibc_assert_time64_type(new_value->it_value.tv_sec);
return my_syscall4(__NR_timerfd_settime64, fd, flags, new_value, old_value);
#else
__nolibc_assert_native_time64();
return my_syscall4(__NR_timerfd_settime, fd, flags, new_value, old_value);
#endif
}
static __attribute__((unused))
int timerfd_settime(int fd, int flags,
const struct itimerspec *new_value, struct itimerspec *old_value)
{
return __sysret(sys_timerfd_settime(fd, flags, new_value, old_value));
}
#endif /* _NOLIBC_SYS_TIMERFD_H */