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nuttx-update/include/sys/syscall_lookup.h
YAMAMOTO Takashi 761ee81956 move readv/writev to the kernel 
currently, nuttx implements readv/writev on the top of read/write.
while it might work for the simplest cases, it's broken by design.
for example, it's impossible to make it work correctly for files
which need to preserve data boundaries without allocating a single
contiguous buffer. (udp socket, some character devices, etc)

this change is a start of the migration to a better design.
that is, implement read/write on the top of readv/writev.

to avoid a single huge change, following things will NOT be done in
this commit:

* fix actual bugs caused by the original readv-based-on-read design.
  (cf. https://github.com/apache/nuttx/pull/12674)

* adapt filesystems/drivers to actually benefit from the new interface.
  (except a few trivial examples)

* eventually retire the old interface.

* retire read/write syscalls. implement them in libc instead.

* pread/pwrite/preadv/pwritev (except the introduction of struct uio,
  which is a preparation to back these variations with the new
  interface.)
2024-10-30 17:07:54 +08:00

405 lines
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/****************************************************************************
* include/sys/syscall_lookup.h
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/* SYSCALL_LOOKUP must be defined before including this file.
*
* These first system calls are supported regardless of the NuttX
* configuration
*/
SYSCALL_LOOKUP1(_exit, 1)
SYSCALL_LOOKUP(_assert, 4)
SYSCALL_LOOKUP(getpid, 0)
SYSCALL_LOOKUP(gettid, 0)
SYSCALL_LOOKUP(prctl, 2)
#ifdef CONFIG_SCHED_HAVE_PARENT
SYSCALL_LOOKUP(getppid, 0)
#endif
SYSCALL_LOOKUP(sched_getcpu, 0)
SYSCALL_LOOKUP(sched_getparam, 2)
SYSCALL_LOOKUP(sched_getscheduler, 1)
SYSCALL_LOOKUP(sched_lock, 0)
SYSCALL_LOOKUP(sched_lockcount, 0)
SYSCALL_LOOKUP(sched_rr_get_interval, 2)
SYSCALL_LOOKUP(sched_setparam, 2)
SYSCALL_LOOKUP(sched_setscheduler, 3)
SYSCALL_LOOKUP(sched_unlock, 0)
SYSCALL_LOOKUP(sched_yield, 0)
SYSCALL_LOOKUP(nxsched_get_stackinfo, 2)
#ifdef CONFIG_SCHED_BACKTRACE
SYSCALL_LOOKUP(sched_backtrace, 4)
#endif
#ifdef CONFIG_SMP
SYSCALL_LOOKUP(sched_getaffinity, 3)
SYSCALL_LOOKUP(sched_setaffinity, 3)
#endif
SYSCALL_LOOKUP(sysinfo, 1)
SYSCALL_LOOKUP(gethostname, 2)
SYSCALL_LOOKUP(sethostname, 2)
/* User identity */
#ifdef CONFIG_SCHED_USER_IDENTITY
SYSCALL_LOOKUP(setuid, 1)
SYSCALL_LOOKUP(getuid, 0)
SYSCALL_LOOKUP(setgid, 1)
SYSCALL_LOOKUP(getgid, 0)
SYSCALL_LOOKUP(seteuid, 1)
SYSCALL_LOOKUP(geteuid, 0)
SYSCALL_LOOKUP(setegid, 1)
SYSCALL_LOOKUP(getegid, 0)
#endif
/* Semaphores */
SYSCALL_LOOKUP(nxsem_destroy, 1)
SYSCALL_LOOKUP(nxsem_post, 1)
SYSCALL_LOOKUP(nxsem_clockwait, 3)
SYSCALL_LOOKUP(nxsem_timedwait, 2)
SYSCALL_LOOKUP(nxsem_trywait, 1)
SYSCALL_LOOKUP(nxsem_wait, 1)
#ifdef CONFIG_PRIORITY_INHERITANCE
SYSCALL_LOOKUP(nxsem_set_protocol, 2)
#endif
#ifdef CONFIG_PRIORITY_PROTECT
SYSCALL_LOOKUP(nxsem_setprioceiling, 3)
SYSCALL_LOOKUP(nxsem_getprioceiling, 2)
#endif
/* Named semaphores */
#ifdef CONFIG_FS_NAMED_SEMAPHORES
SYSCALL_LOOKUP(nxsem_open, 5)
SYSCALL_LOOKUP(nxsem_close, 1)
SYSCALL_LOOKUP(nxsem_unlink, 1)
#endif
#ifndef CONFIG_BUILD_KERNEL
SYSCALL_LOOKUP(task_create, 5)
SYSCALL_LOOKUP(task_spawn, 6)
SYSCALL_LOOKUP(task_delete, 1)
SYSCALL_LOOKUP(task_restart, 1)
#else
SYSCALL_LOOKUP(pgalloc, 2)
#endif
/* The following can be individually enabled */
#ifdef CONFIG_ARCH_HAVE_FORK
SYSCALL_LOOKUP(up_fork, 0)
#endif
#ifdef CONFIG_SCHED_WAITPID
SYSCALL_LOOKUP(waitpid, 3)
#ifdef CONFIG_SCHED_HAVE_PARENT
SYSCALL_LOOKUP(wait, 1)
SYSCALL_LOOKUP(waitid, 4)
#endif
#endif
/* The following can only be defined if we are configured to load
* OS modules from a file system.
*/
#ifdef CONFIG_MODULE
SYSCALL_LOOKUP(insmod, 2)
SYSCALL_LOOKUP(rmmod, 1)
SYSCALL_LOOKUP(modhandle, 1)
#endif
/* The following can only be defined if we are configured to execute
* programs from a file system.
*/
#ifndef CONFIG_BINFMT_DISABLE
#ifndef CONFIG_BUILD_KERNEL
SYSCALL_LOOKUP(exec, 4)
#endif
#ifdef CONFIG_LIBC_EXECFUNCS
SYSCALL_LOOKUP(posix_spawn, 6)
SYSCALL_LOOKUP(execve, 3)
#endif
#endif
/* The following are only defined is signals are supported in the NuttX
* configuration.
*/
SYSCALL_LOOKUP(kill, 2)
SYSCALL_LOOKUP(tgkill, 3)
SYSCALL_LOOKUP(sigaction, 3)
SYSCALL_LOOKUP(sigpending, 1)
SYSCALL_LOOKUP(sigprocmask, 3)
SYSCALL_LOOKUP(sigqueue, 3)
SYSCALL_LOOKUP(sigsuspend, 1)
SYSCALL_LOOKUP(sigtimedwait, 3)
SYSCALL_LOOKUP(sigwaitinfo, 2)
SYSCALL_LOOKUP(clock_nanosleep, 4)
/* The following are only defined if the system clock is enabled in the
* NuttX configuration.
*/
SYSCALL_LOOKUP(clock, 0)
SYSCALL_LOOKUP(clock_gettime, 2)
SYSCALL_LOOKUP(clock_settime, 2)
#ifdef CONFIG_CLOCK_TIMEKEEPING
SYSCALL_LOOKUP(adjtime, 2)
#endif
/* The following are defined only if POSIX timers are supported */
#ifndef CONFIG_DISABLE_POSIX_TIMERS
SYSCALL_LOOKUP(timer_create, 3)
SYSCALL_LOOKUP(timer_delete, 1)
SYSCALL_LOOKUP(timer_getoverrun, 1)
SYSCALL_LOOKUP(timer_gettime, 2)
SYSCALL_LOOKUP(timer_settime, 4)
SYSCALL_LOOKUP(getitimer, 2)
SYSCALL_LOOKUP(setitimer, 3)
#endif
/* System logging */
#ifdef CONFIG_SYSLOG
SYSCALL_LOOKUP(nx_vsyslog, 3)
#endif
/* The following are defined if either file or socket descriptor are
* enabled.
*/
SYSCALL_LOOKUP(close, 1)
SYSCALL_LOOKUP(ioctl, 3)
SYSCALL_LOOKUP(read, 3)
SYSCALL_LOOKUP(write, 3)
SYSCALL_LOOKUP(readv, 3)
SYSCALL_LOOKUP(writev, 3)
SYSCALL_LOOKUP(pread, 4)
SYSCALL_LOOKUP(pwrite, 4)
#ifdef CONFIG_FS_AIO
SYSCALL_LOOKUP(aio_read, 1)
SYSCALL_LOOKUP(aio_write, 1)
SYSCALL_LOOKUP(aio_fsync, 2)
SYSCALL_LOOKUP(aio_cancel, 2)
#endif
SYSCALL_LOOKUP(poll, 3)
SYSCALL_LOOKUP(select, 5)
SYSCALL_LOOKUP(ppoll, 4)
SYSCALL_LOOKUP(pselect, 6)
#ifdef CONFIG_EVENT_FD
SYSCALL_LOOKUP(eventfd, 2)
#endif
#ifdef CONFIG_TIMER_FD
SYSCALL_LOOKUP(timerfd_create, 2)
SYSCALL_LOOKUP(timerfd_settime, 4)
SYSCALL_LOOKUP(timerfd_gettime, 2)
#endif
#ifdef CONFIG_SIGNAL_FD
SYSCALL_LOOKUP(signalfd, 3)
#endif
/* Board support */
#ifdef CONFIG_BOARDCTL
SYSCALL_LOOKUP(boardctl, 2)
#endif
/* The following are defined if file descriptors are enabled */
SYSCALL_LOOKUP(dup, 1)
SYSCALL_LOOKUP(dup2, 2)
SYSCALL_LOOKUP(fcntl, 3)
SYSCALL_LOOKUP(ftruncate, 2)
SYSCALL_LOOKUP(lseek, 3)
SYSCALL_LOOKUP(mmap, 6)
SYSCALL_LOOKUP(open, 3)
SYSCALL_LOOKUP(rename, 2)
SYSCALL_LOOKUP(stat, 2)
SYSCALL_LOOKUP(lstat, 2)
SYSCALL_LOOKUP(fstat, 2)
SYSCALL_LOOKUP(statfs, 2)
SYSCALL_LOOKUP(fstatfs, 2)
SYSCALL_LOOKUP(sendfile, 4)
SYSCALL_LOOKUP(sync, 0)
SYSCALL_LOOKUP(fsync, 1)
SYSCALL_LOOKUP(chmod, 2)
SYSCALL_LOOKUP(lchmod, 2)
SYSCALL_LOOKUP(fchmod, 2)
SYSCALL_LOOKUP(chown, 3)
SYSCALL_LOOKUP(lchown, 3)
SYSCALL_LOOKUP(fchown, 3)
SYSCALL_LOOKUP(utimens, 2)
SYSCALL_LOOKUP(lutimens, 2)
SYSCALL_LOOKUP(futimens, 2)
SYSCALL_LOOKUP(msync, 3)
SYSCALL_LOOKUP(munmap, 2)
#if defined(CONFIG_PSEUDOFS_SOFTLINKS)
SYSCALL_LOOKUP(link, 2)
SYSCALL_LOOKUP(symlink, 2)
SYSCALL_LOOKUP(readlink, 3)
#endif
#if defined(CONFIG_PIPES) && CONFIG_DEV_PIPE_SIZE > 0
SYSCALL_LOOKUP(pipe2, 2)
#endif
#if defined(CONFIG_PIPES) && CONFIG_DEV_FIFO_SIZE > 0
SYSCALL_LOOKUP(nx_mkfifo, 3)
#endif
#ifndef CONFIG_DISABLE_MOUNTPOINT
SYSCALL_LOOKUP(mount, 5)
SYSCALL_LOOKUP(mkdir, 2)
SYSCALL_LOOKUP(rmdir, 1)
SYSCALL_LOOKUP(umount2, 2)
SYSCALL_LOOKUP(unlink, 1)
#endif
/* Shared memory interfaces */
#ifdef CONFIG_MM_SHM
SYSCALL_LOOKUP(shmget, 3)
SYSCALL_LOOKUP(shmat, 3)
SYSCALL_LOOKUP(shmctl, 3)
SYSCALL_LOOKUP(shmdt, 1)
#endif
#ifdef CONFIG_FS_SHMFS
SYSCALL_LOOKUP(shm_open, 3)
SYSCALL_LOOKUP(shm_unlink, 1)
#endif
/* The following are defined if the file system notify is enabled */
#ifdef CONFIG_FS_NOTIFY
SYSCALL_LOOKUP(inotify_add_watch, 3)
SYSCALL_LOOKUP(inotify_init, 0)
SYSCALL_LOOKUP(inotify_init1, 1)
SYSCALL_LOOKUP(inotify_rm_watch, 2)
#endif
/* The following are defined if pthreads are enabled */
#ifndef CONFIG_DISABLE_PTHREAD
SYSCALL_LOOKUP(pthread_barrier_wait, 1)
SYSCALL_LOOKUP(pthread_cancel, 1)
SYSCALL_LOOKUP(pthread_cond_broadcast, 1)
SYSCALL_LOOKUP(pthread_cond_signal, 1)
SYSCALL_LOOKUP(pthread_cond_wait, 2)
SYSCALL_LOOKUP(nx_pthread_create, 5)
SYSCALL_LOOKUP(pthread_detach, 1)
SYSCALL_LOOKUP(nx_pthread_exit, 1)
SYSCALL_LOOKUP(pthread_getschedparam, 3)
SYSCALL_LOOKUP(pthread_join, 2)
SYSCALL_LOOKUP(pthread_mutex_destroy, 1)
SYSCALL_LOOKUP(pthread_mutex_init, 2)
SYSCALL_LOOKUP(pthread_mutex_timedlock, 2)
SYSCALL_LOOKUP(pthread_mutex_trylock, 1)
SYSCALL_LOOKUP(pthread_mutex_unlock, 1)
#ifndef CONFIG_PTHREAD_MUTEX_UNSAFE
SYSCALL_LOOKUP(pthread_mutex_consistent, 1)
#endif
SYSCALL_LOOKUP(pthread_setschedparam, 3)
SYSCALL_LOOKUP(pthread_setschedprio, 2)
#ifdef CONFIG_SMP
SYSCALL_LOOKUP(pthread_setaffinity_np, 3)
SYSCALL_LOOKUP(pthread_getaffinity_np, 3)
#endif
SYSCALL_LOOKUP(pthread_cond_clockwait, 4)
SYSCALL_LOOKUP(pthread_sigmask, 3)
#endif
/* The following are defined only if message queues are enabled */
#ifndef CONFIG_DISABLE_MQUEUE
SYSCALL_LOOKUP(mq_close, 1)
SYSCALL_LOOKUP(mq_getattr, 2)
SYSCALL_LOOKUP(mq_notify, 2)
SYSCALL_LOOKUP(mq_open, 4)
SYSCALL_LOOKUP(mq_receive, 4)
SYSCALL_LOOKUP(mq_send, 4)
SYSCALL_LOOKUP(mq_setattr, 3)
SYSCALL_LOOKUP(mq_timedreceive, 5)
SYSCALL_LOOKUP(mq_timedsend, 5)
SYSCALL_LOOKUP(mq_unlink, 1)
#endif
/* The following are defined only if environment variables are supported */
#ifndef CONFIG_DISABLE_ENVIRON
SYSCALL_LOOKUP(get_environ_ptr, 0)
SYSCALL_LOOKUP(clearenv, 0)
SYSCALL_LOOKUP(getenv, 1)
SYSCALL_LOOKUP(putenv, 1)
SYSCALL_LOOKUP(setenv, 3)
SYSCALL_LOOKUP(unsetenv, 1)
#endif
/* The following are defined only if networking AND sockets are supported */
#ifdef CONFIG_NET
SYSCALL_LOOKUP(accept4, 4)
SYSCALL_LOOKUP(bind, 3)
SYSCALL_LOOKUP(connect, 3)
SYSCALL_LOOKUP(getpeername, 3)
SYSCALL_LOOKUP(getsockname, 3)
SYSCALL_LOOKUP(getsockopt, 5)
SYSCALL_LOOKUP(listen, 2)
SYSCALL_LOOKUP(recv, 4)
SYSCALL_LOOKUP(recvfrom, 6)
SYSCALL_LOOKUP(recvmsg, 3)
SYSCALL_LOOKUP(send, 4)
SYSCALL_LOOKUP(sendto, 6)
SYSCALL_LOOKUP(sendmsg, 3)
SYSCALL_LOOKUP(setsockopt, 5)
SYSCALL_LOOKUP(shutdown, 2)
SYSCALL_LOOKUP(socket, 3)
SYSCALL_LOOKUP(socketpair, 4)
#endif
SYSCALL_LOOKUP(nanosleep, 2)
/* I/O event notification facility */
SYSCALL_LOOKUP(epoll_create1, 1)
SYSCALL_LOOKUP(epoll_ctl, 4)
SYSCALL_LOOKUP(epoll_wait, 4)
/* POSIX timers */
SYSCALL_LOOKUP(time, 1)
SYSCALL_LOOKUP(gettimeofday, 2)
SYSCALL_LOOKUP(settimeofday, 2)
/* ANSI C signal handling */
SYSCALL_LOOKUP(signal, 2)
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