nuttx/syscall/syscall.csv at 32ffc69bdde364fc851762a3497e5cfa158d22be

mirror of https://github.com/apache/nuttx.git synced 2026-05-10 23:40:21 +08:00

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wangchengdong faf864b04f sched/signal: Add support for disabling all signal functions

Signals in NuttX serve two primary purposes:

      1. Synchronization and wake-up:
        Signals can be used to block threads on specific signal sets and later
        wake them up by delivering the corresponding signals to those threads.

      2. Asynchronous notification:
        Signals can also be used to install callback handlers for specific signals, allowing threads to
        asynchronously invoke those handlers when the signals are delivered.

    This change introduces the ability to  disable all signal functionality to reduce footprint for NuttX.

Signed-off-by: Chengdong Wang wangchengdong@lixiang.com

2026-01-18 08:24:13 -03:00

19 KiB

Raw Blame History

1	_assert	assert.h		void	FAR const char *	int	FAR const char *	FAR void *
2	_exit	unistd.h		noreturn	int
3	accept4	sys/socket.h	defined(CONFIG_NET)	int	int	FAR struct sockaddr *	FAR socklen_t *	int
4	adjtime	sys/time.h	defined(CONFIG_CLOCK_ADJTIME)	int	FAR const struct timeval *	FAR struct timeval *
5	aio_cancel	aio.h	defined(CONFIG_FS_AIO)	int	int	FAR struct aiocb *
6	aio_fsync	aio.h	defined(CONFIG_FS_AIO)	int	int	FAR struct aiocb *
7	aio_read	aio.h	defined(CONFIG_FS_AIO)	int	FAR struct aiocb *
8	aio_write	aio.h	defined(CONFIG_FS_AIO)	int	FAR struct aiocb *
9	bind	sys/socket.h	defined(CONFIG_NET)	int	int	FAR const struct sockaddr *	socklen_t
10	boardctl	sys/boardctl.h	defined(CONFIG_BOARDCTL)	int	unsigned int	uintptr_t
11	chmod	sys/stat.h		int	FAR const char *	mode_t
12	chown	unistd.h		int	FAR const char *	uid_t	gid_t
13	clearenv	stdlib.h	!defined(CONFIG_DISABLE_ENVIRON)	int
14	clock	time.h		clock_t
15	clock_adjtime	sys/timex.h	defined(CONFIG_CLOCK_ADJTIME)	int	clockid_t	struct timex *
16	clock_gettime	time.h		int	clockid_t	FAR struct timespec *
17	clock_nanosleep	time.h		int	clockid_t	int	FAR const struct timespec *	FAR struct timespec *
18	clock_settime	time.h		int	clockid_t	const struct timespec*
19	close	unistd.h		int	int
20	connect	sys/socket.h	defined(CONFIG_NET)	int	int	FAR const struct sockaddr *	socklen_t
21	dup	unistd.h		int	int
22	dup2	unistd.h		int	int	int
23	epoll_close	sys/epoll.h		void	int
24	epoll_create	sys/epoll.h		int	int
25	epoll_create1	sys/epoll.h		int	int
26	epoll_ctl	sys/epoll.h		int	int	int	int	FAR struct epoll_event *
27	epoll_pwait	sys/epoll.h		int	int	FAR struct epoll_event *	int	int	FAR const sigset_t *
28	epoll_wait	sys/epoll.h		int	int	FAR struct epoll_event *	int	int
29	eventfd	sys/eventfd.h	defined(CONFIG_EVENT_FD)	int	unsigned int	int
30	exec	nuttx/binfmt/binfmt.h	!defined(CONFIG_BINFMT_DISABLE) && !defined(CONFIG_BUILD_KERNEL)	int	FAR const char *	FAR char * const *	FAR char * const *	FAR const struct symtab_s *	int
31	execve	unistd.h	!defined(CONFIG_BINFMT_DISABLE) && defined(CONFIG_LIBC_EXECFUNCS)	int	FAR const char *	FAR char * const []\|FAR char * const *	FAR char * const []\|FAR char * const *
32	fchmod	sys/stat.h		int	int	mode_t
33	fchown	unistd.h		int	int	uid_t	gid_t
34	fcntl	fcntl.h		int	int	int	...	int
35	fstat	sys/stat.h		int	int	FAR struct stat *
36	fstatfs	sys/statfs.h		int	int	FAR struct statfs *
37	fsync	unistd.h		int	int
38	ftruncate	unistd.h		int	int	off_t
39	futimens	sys/stat.h		int	int	const struct timespec [2]\|FAR const struct timespec *
40	get_environ_ptr	stdlib.h	!defined(CONFIG_DISABLE_ENVIRON)	FAR char **
41	getegid	unistd.h	defined(CONFIG_SCHED_USER_IDENTITY)	gid_t
42	getenv	stdlib.h	!defined(CONFIG_DISABLE_ENVIRON)	FAR char *	FAR const char *
43	geteuid	unistd.h	defined(CONFIG_SCHED_USER_IDENTITY)	uid_t
44	getgid	unistd.h	defined(CONFIG_SCHED_USER_IDENTITY)	gid_t
45	gethostname	unistd.h		int	FAR char *	size_t
46	getitimer	sys/time.h	!defined(CONFIG_DISABLE_POSIX_TIMERS)	int	int	FAR struct itimerval *
47	getpeername	sys/socket.h	defined(CONFIG_NET)	int	int	FAR struct sockaddr *	FAR socklen_t *
48	getpid	unistd.h		pid_t
49	getppid	unistd.h	defined(CONFIG_SCHED_HAVE_PARENT)	pid_t
50	getsockname	sys/socket.h	defined(CONFIG_NET)	int	int	FAR struct sockaddr *	FAR socklen_t *
51	getsockopt	sys/socket.h	defined(CONFIG_NET)	int	int	int	int	FAR void *	FAR socklen_t *
52	gettimeofday	sys/time.h		int	FAR struct timeval *	FAR struct timezone *
53	getuid	unistd.h	defined(CONFIG_SCHED_USER_IDENTITY)	uid_t
54	inotify_add_watch	sys/inotify.h	defined(CONFIG_FS_NOTIFY)	int	int	FAR const char *	uint32_t
55	inotify_init	sys/inotify.h	defined(CONFIG_FS_NOTIFY)	int
56	inotify_init1	sys/inotify.h	defined(CONFIG_FS_NOTIFY)	int	int
57	inotify_rm_watch	sys/inotify.h	defined(CONFIG_FS_NOTIFY)	int	int	int
58	insmod	nuttx/module.h	defined(CONFIG_MODULE)	FAR void *	FAR const char *	FAR const char *
59	ioctl	sys/ioctl.h		int	int	int	...	unsigned long
60	kill	signal.h		int	pid_t	int
61	lchmod	sys/stat.h		int	FAR const char *	mode_t
62	lchown	unistd.h		int	FAR const char *	uid_t	gid_t
63	link	unistd.h	defined(CONFIG_PSEUDOFS_SOFTLINKS)	int	FAR const char *	FAR const char *
64	listen	sys/socket.h	defined(CONFIG_NET)	int	int	int
65	lseek	unistd.h		off_t	int	off_t	int
66	lstat	sys/stat.h		int	FAR const char *	FAR struct stat *
67	lutimens	sys/stat.h		int	FAR const char *	const struct timespec [2]\|FAR const struct timespec *
68	mkdir	sys/stat.h	!defined(CONFIG_DISABLE_MOUNTPOINT)	int	FAR const char *	mode_t
69	mmap	sys/mman.h		FAR void *	FAR void *	size_t	int	int	int	off_t
70	modhandle	nuttx/module.h	defined(CONFIG_MODULE)	FAR void *	FAR const char *
71	mount	sys/mount.h	!defined(CONFIG_DISABLE_MOUNTPOINT)	int	FAR const char *	FAR const char *	FAR const char *	unsigned long	FAR const void *
72	mq_close	mqueue.h	!defined(CONFIG_DISABLE_MQUEUE)	int	mqd_t
73	mq_getattr	mqueue.h	!defined(CONFIG_DISABLE_MQUEUE)	int	mqd_t	FAR struct mq_attr *
74	mq_notify	mqueue.h	!defined(CONFIG_DISABLE_MQUEUE)	int	mqd_t	FAR const struct sigevent *
75	mq_open	mqueue.h	!defined(CONFIG_DISABLE_MQUEUE)	mqd_t	FAR const char *	int	...	mode_t	FAR struct mq_attr *
76	mq_receive	mqueue.h	!defined(CONFIG_DISABLE_MQUEUE)	ssize_t	mqd_t	FAR char *	size_t	FAR unsigned int *
77	mq_send	mqueue.h	!defined(CONFIG_DISABLE_MQUEUE)	int	mqd_t	FAR const char *	size_t	unsigned int
78	mq_setattr	mqueue.h	!defined(CONFIG_DISABLE_MQUEUE)	int	mqd_t	FAR const struct mq_attr *	FAR struct mq_attr *
79	mq_timedreceive	mqueue.h	!defined(CONFIG_DISABLE_MQUEUE)	ssize_t	mqd_t	FAR char *	size_t	FAR unsigned int *	FAR const struct timespec *
80	mq_timedsend	mqueue.h	!defined(CONFIG_DISABLE_MQUEUE)	int	mqd_t	FAR const char *	size_t	unsigned int	FAR const struct timespec *
81	mq_unlink	mqueue.h	!defined(CONFIG_DISABLE_MQUEUE)	int	FAR const char *
82	msync	sys/mman.h		int	FAR void *	size_t	int
83	munmap	sys/mman.h		int	FAR void *	size_t
84	nanosleep	time.h		int	FAR const struct timespec *	FAR struct timespec *
85	nx_mkfifo	nuttx/fs/fs.h	defined(CONFIG_PIPES) && CONFIG_DEV_FIFO_SIZE > 0	int	FAR const char *	mode_t	size_t
86	nx_pthread_create	nuttx/pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	pthread_trampoline_t	FAR pthread_t *	FAR const pthread_attr_t *	pthread_startroutine_t	pthread_addr_t
87	nx_pthread_exit	nuttx/pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	noreturn	pthread_addr_t
88	nx_vsyslog	nuttx/syslog/syslog.h		int	int	FAR const IPTR char *	FAR va_list *
89	nxsched_get_stackinfo	nuttx/sched.h		int	pid_t	FAR struct stackinfo_s *
90	nxsem_tickwait	nuttx/semaphore.h		int	FAR sem_t *	uint32_t
91	nxsem_clockwait	nuttx/semaphore.h		int	FAR sem_t *	clockid_t	FAR const struct timespec *
92	nxsem_close	nuttx/semaphore.h	defined(CONFIG_FS_NAMED_SEMAPHORES)	int	FAR sem_t *
93	nxsem_destroy	nuttx/semaphore.h		int	FAR sem_t *
94	nxsem_getprioceiling	nuttx/semaphore.h	defined(CONFIG_PRIORITY_PROTECT)	int	FAR const sem_t *	FAR int *
95	nxsem_open	nuttx/semaphore.h	defined(CONFIG_FS_NAMED_SEMAPHORES)	int	FAR sem_t **	FAR const char *	int	...	mode_t	unsigned int
96	nxsem_post_slow	nuttx/semaphore.h		int	FAR sem_t *
97	nxsem_set_protocol	nuttx/semaphore.h	defined(CONFIG_PRIORITY_INHERITANCE)	int	FAR sem_t *	int
98	nxsem_setprioceiling	nuttx/semaphore.h	defined(CONFIG_PRIORITY_PROTECT)	int	FAR sem_t *	int	FAR int *
99	nxsem_timedwait	nuttx/semaphore.h		int	FAR sem_t *	FAR const struct timespec *
100	nxsem_trywait_slow	nuttx/semaphore.h		int	FAR sem_t *
101	nxsem_unlink	nuttx/semaphore.h	defined(CONFIG_FS_NAMED_SEMAPHORES)	int	FAR const char *
102	nxsem_wait_slow	nuttx/semaphore.h		int	FAR sem_t *
103	open	fcntl.h		int	FAR const char *	int	...	mode_t
104	pgalloc	nuttx/arch.h	defined(CONFIG_BUILD_KERNEL)	uintptr_t	uintptr_t	unsigned int
105	pipe2	unistd.h	defined(CONFIG_PIPES) && CONFIG_DEV_PIPE_SIZE > 0	int	int [2]\|FAR int *	int
106	poll	poll.h		int	FAR struct pollfd *	nfds_t	int
107	posix_spawn	spawn.h	!defined(CONFIG_BINFMT_DISABLE) && defined(CONFIG_LIBC_EXECFUNCS)	int	FAR pid_t *	FAR const char *	FAR const posix_spawn_file_actions_t *	FAR const posix_spawnattr_t *	FAR char * const []\|FAR char * const *	FAR char * const []\|FAR char * const *
108	ppoll	poll.h	!defined(CONFIG_DISABLE_ALL_SIGNALS)	int	FAR struct pollfd *	nfds_t	FAR const struct timespec *	FAR const sigset_t *
109	prctl	sys/prctl.h		int	int	...	uintptr_t	uintptr_t
110	pread	unistd.h		ssize_t	int	FAR void *	size_t	off_t
111	pselect	sys/select.h	!defined(CONFIG_DISABLE_ALL_SIGNALS)	int	int	FAR fd_set *	FAR fd_set *	FAR fd_set *	FAR const struct timespec *	FAR const sigset_t *
112	pthread_cancel	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	pthread_t
113	pthread_cond_broadcast	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	FAR pthread_cond_t *
114	pthread_cond_clockwait	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	FAR pthread_cond_t *	FAR pthread_mutex_t *	clockid_t	FAR const struct timespec *
115	pthread_cond_signal	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	FAR pthread_cond_t *
116	pthread_cond_wait	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	FAR pthread_cond_t *	FAR pthread_mutex_t *
117	pthread_detach	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	pthread_t
118	pthread_getaffinity_np	pthread.h	!defined(CONFIG_DISABLE_PTHREAD) && defined(CONFIG_SMP)	int	pthread_t	size_t	FAR cpu_set_t*
119	pthread_getschedparam	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	pthread_t	FAR int *	FAR struct sched_param *
120	pthread_join	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	pthread_t	FAR pthread_addr_t *
121	pthread_mutex_consistent	pthread.h	!defined(CONFIG_DISABLE_PTHREAD) && !defined(CONFIG_PTHREAD_MUTEX_UNSAFE)	int	FAR pthread_mutex_t *
122	pthread_mutex_destroy	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	FAR pthread_mutex_t *
123	pthread_mutex_init	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	FAR pthread_mutex_t *	FAR const pthread_mutexattr_t *
124	pthread_mutex_timedlock	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	FAR pthread_mutex_t *	FAR const struct timespec *
125	pthread_mutex_trylock	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	FAR pthread_mutex_t *
126	pthread_mutex_unlock	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	FAR pthread_mutex_t *
127	pthread_setaffinity_np	pthread.h	!defined(CONFIG_DISABLE_PTHREAD) && defined(CONFIG_SMP)	int	pthread_t	size_t	FAR const cpu_set_t *
128	pthread_setschedparam	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	pthread_t	int	FAR const struct sched_param *
129	pthread_setschedprio	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	pthread_t	int
130	pthread_sigmask	pthread.h	!defined(CONFIG_DISABLE_PTHREAD)	int	int	FAR const sigset_t *	FAR sigset_t *
131	putenv	stdlib.h	!defined(CONFIG_DISABLE_ENVIRON)	int	FAR const char *
132	pwrite	unistd.h		ssize_t	int	FAR const void *	size_t	off_t
133	read	unistd.h		ssize_t	int	FAR void *	size_t
134	readv	sys/uio.h		ssize_t	int	FAR const struct iovec *	int
135	readlink	unistd.h	defined(CONFIG_PSEUDOFS_SOFTLINKS)	ssize_t	FAR const char *	FAR char *	size_t
136	recv	sys/socket.h	defined(CONFIG_NET)	ssize_t	int	FAR void *	size_t	int
137	recvfrom	sys/socket.h	defined(CONFIG_NET)	ssize_t	int	FAR void*	size_t	int	FAR struct sockaddr*	FAR socklen_t*
138	recvmsg	sys/socket.h	defined(CONFIG_NET)	ssize_t	int	FAR struct msghdr *	int
139	rename	stdio.h		int	FAR const char *	FAR const char *
140	rmdir	unistd.h	!defined(CONFIG_DISABLE_MOUNTPOINT)	int	FAR const char*
141	rmmod	nuttx/module.h	defined(CONFIG_MODULE)	int	FAR void *
142	sched_backtrace	sched.h	defined(CONFIG_SCHED_BACKTRACE)	int	pid_t	FAR void **	int	int
143	sched_getaffinity	sched.h	defined(CONFIG_SMP)	int	pid_t	size_t	FAR cpu_set_t *
144	sched_getcpu	sched.h		int
145	sched_getparam	sched.h		int	pid_t	FAR struct sched_param *
146	sched_getscheduler	sched.h		int	pid_t
147	sched_lock	sched.h		void
148	sched_lockcount	sched.h		int
149	sched_rr_get_interval	sched.h		int	pid_t	struct timespec *
150	sched_setaffinity	sched.h	defined(CONFIG_SMP)	int	pid_t	size_t	FAR const cpu_set_t*
151	sched_setparam	sched.h		int	pid_t	const struct sched_param *
152	sched_setscheduler	sched.h		int	pid_t	int	const struct sched_param *
153	sched_unlock	sched.h		void
154	sched_yield	sched.h		int
155	select	sys/select.h		int	int	FAR fd_set *	FAR fd_set *	FAR fd_set *	FAR struct timeval *
156	send	sys/socket.h	defined(CONFIG_NET)	ssize_t	int	FAR const void *	size_t	int
157	sendfile	sys/sendfile.h		ssize_t	int	int	FAR off_t *	size_t
158	sendmsg	sys/socket.h	defined(CONFIG_NET)	ssize_t	int	FAR const struct msghdr *	int
159	sendto	sys/socket.h	defined(CONFIG_NET)	ssize_t	int	FAR const void *	size_t	int	FAR const struct sockaddr *	socklen_t
160	setegid	unistd.h	defined(CONFIG_SCHED_USER_IDENTITY)	int	gid_t
161	setenv	stdlib.h	!defined(CONFIG_DISABLE_ENVIRON)	int	FAR const char *	FAR const char *	int
162	seteuid	unistd.h	defined(CONFIG_SCHED_USER_IDENTITY)	int	uid_t
163	setgid	unistd.h	defined(CONFIG_SCHED_USER_IDENTITY)	int	gid_t
164	sethostname	unistd.h		int	FAR const char *	size_t
165	setitimer	sys/time.h	!defined(CONFIG_DISABLE_POSIX_TIMERS)	int	int	FAR const struct itimerval *	FAR struct itimerval *
166	setsockopt	sys/socket.h	defined(CONFIG_NET) && defined(CONFIG_NET_SOCKOPTS)	int	int	int	int	FAR const void *	socklen_t
167	settimeofday	sys/time.h		int	FAR const struct timeval *	FAR const struct timezone *
168	setuid	unistd.h	defined(CONFIG_SCHED_USER_IDENTITY)	int	uid_t
169	shm_open	sys/mman.h	defined(CONFIG_FS_SHMFS)	int	FAR const char *	int	mode_t
170	shm_unlink	sys/mman.h	defined(CONFIG_FS_SHMFS)	int	FAR const char *
171	shmat	sys/shm.h	defined(CONFIG_MM_SHM)	FAR void *	int	FAR const void *	int
172	shmctl	sys/shm.h	defined(CONFIG_MM_SHM)	int	int	int	FAR struct shmid_ds *
173	shmdt	sys/shm.h	defined(CONFIG_MM_SHM)	int	FAR const void *
174	shmget	sys/shm.h	defined(CONFIG_MM_SHM)	int	key_t	size_t	int
175	shutdown	sys/socket.h	defined(CONFIG_NET)	int	int	int
176	sigaction	signal.h	defined(CONFIG_ENABLE_ALL_SIGNALS)	int	int	FAR const struct sigaction *	FAR struct sigaction *
177	signal	signal.h	defined(CONFIG_ENABLE_ALL_SIGNALS)	_sa_handler_t	int	_sa_handler_t
178	signalfd	sys/signalfd.h	defined(CONFIG_SIGNAL_FD)	int	int	FAR const sigset_t *	int
179	sigpending	signal.h	defined(CONFIG_ENABLE_ALL_SIGNALS)	int	FAR sigset_t *
180	sigprocmask	signal.h	!defined(CONFIG_DISABLE_ALL_SIGNALS)	int	int	FAR const sigset_t *	FAR sigset_t *
181	sigqueue	signal.h	!defined(CONFIG_DISABLE_ALL_SIGNALS)	int	int	int	union sigval\|FAR void *\|sival_ptr
182	sigsuspend	signal.h	!defined(CONFIG_DISABLE_ALL_SIGNALS)	int	FAR const sigset_t *
183	sigtimedwait	signal.h	!defined(CONFIG_DISABLE_ALL_SIGNALS)	int	FAR const sigset_t *	FAR struct siginfo *	FAR const struct timespec *
184	sigwaitinfo	signal.h	!defined(CONFIG_DISABLE_ALL_SIGNALS)	int	FAR const sigset_t *	FAR struct siginfo *
185	socket	sys/socket.h	defined(CONFIG_NET)	int	int	int	int
186	socketpair	sys/socket.h	defined(CONFIG_NET)	int	int	int	int	int [2]\|FAR int *
187	stat	sys/stat.h		int	FAR const char *	FAR struct stat *
188	statfs	sys/statfs.h		int	FAR const char *	FAR struct statfs *
189	symlink	unistd.h	defined(CONFIG_PSEUDOFS_SOFTLINKS)	int	FAR const char *	FAR const char *
190	sync	unistd.h		void
191	sysinfo	sys/sysinfo.h		int	FAR struct sysinfo *
192	task_create	sched.h	!defined(CONFIG_BUILD_KERNEL)	int	FAR const char *	int	int	main_t	FAR char * const []\|FAR char * const *
193	task_delete	sched.h	!defined(CONFIG_BUILD_KERNEL)	int	pid_t
194	task_restart	sched.h	!defined(CONFIG_BUILD_KERNEL)	int	pid_t
195	task_spawn	nuttx/spawn.h	!defined(CONFIG_BUILD_KERNEL)	int	FAR const char *	main_t	FAR const posix_spawn_file_actions_t *	FAR const posix_spawnattr_t *	FAR char * const []\|FAR char * const *	FAR char * const []\|FAR char * const *
196	tgkill	signal.h		int	pid_t	pid_t	int
197	time	time.h		time_t	FAR time_t *
198	timer_create	time.h	!defined(CONFIG_DISABLE_POSIX_TIMERS)	int	clockid_t	FAR struct sigevent *	FAR timer_t *
199	timer_delete	time.h	!defined(CONFIG_DISABLE_POSIX_TIMERS)	int	timer_t
200	timer_getoverrun	time.h	!defined(CONFIG_DISABLE_POSIX_TIMERS)	int	timer_t
201	timer_gettime	time.h	!defined(CONFIG_DISABLE_POSIX_TIMERS)	int	timer_t	FAR struct itimerspec *
202	timer_settime	time.h	!defined(CONFIG_DISABLE_POSIX_TIMERS)	int	timer_t	int	FAR const struct itimerspec *	FAR struct itimerspec *
203	timerfd_create	sys/timerfd.h	defined(CONFIG_TIMER_FD)	int	int	int
204	timerfd_gettime	sys/timerfd.h	defined(CONFIG_TIMER_FD)	int	int	FAR struct itimerspec *
205	timerfd_settime	sys/timerfd.h	defined(CONFIG_TIMER_FD)	int	int	int	FAR const struct itimerspec *	FAR struct itimerspec *
206	umount2	sys/mount.h	!defined(CONFIG_DISABLE_MOUNTPOINT)	int	FAR const char *	unsigned int
207	unlink	unistd.h	!defined(CONFIG_DISABLE_MOUNTPOINT)	int	FAR const char *
208	unsetenv	stdlib.h	!defined(CONFIG_DISABLE_ENVIRON)	int	FAR const char *
209	up_fork	nuttx/arch.h	defined(CONFIG_ARCH_HAVE_FORK)	pid_t
210	utimens	sys/stat.h		int	FAR const char *	const struct timespec [2]\|FAR const struct timespec *
211	wait	sys/wait.h	defined(CONFIG_SCHED_WAITPID) && defined(CONFIG_SCHED_HAVE_PARENT)	pid_t	FAR int *
212	waitid	sys/wait.h	defined(CONFIG_SCHED_WAITPID) && defined(CONFIG_SCHED_HAVE_PARENT)	int	idtype_t	id_t	FAR siginfo_t *	int
213	waitpid	sys/wait.h	defined(CONFIG_SCHED_WAITPID)	pid_t	pid_t	FAR int *	int
214	write	unistd.h		ssize_t	int	FAR const void *	size_t
215	writev	sys/uio.h		ssize_t	int	FAR const struct iovec *	int

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