// Segregated Kernel -- central syscall table. ONE line per syscall.
//
// Format: SYSCALL(nr, linux_nr, name)
//   nr        SchOS native syscall number
//   linux_nr  Linux x86_64 syscall number, or NO_LINUX if none
//   name      implemented as sys_<name>() in kernel/sys/sys_*.c
//
// To add a syscall:
//   1. Add ONE line here.
//   2. Write the body with SYSCALL_DEFINE(<name>) in a kernel/sys/sys_*.c.
//
// Everything else is generated from this file: the SYS_* constants
// (include/syscall.h), the dispatch table (kernel/sys/syscall.c), and the
// Linux ABI translation map (kernel/sys/linux_abi.c). The Linux number used
// to live in a second hand-maintained table in linux_abi.c; it does not any
// more, so a syscall can no longer be half-registered.
//
// A syscall reachable under more than one Linux number (e.g. stat/newstat)
// gets extra SYSCALL_ALIAS(linux_nr, name) lines.


// --- process ---
SYSCALL(  1,         57, fork)
SYSCALL(  2,         60, exit)
SYSCALL(  3,   NO_LINUX, wait)
SYSCALL(  6,         62, kill)
SYSCALL(  7,         59, exec)
SYSCALL( 11,         39, getpid)
SYSCALL( 13,   NO_LINUX, sleep)
SYSCALL( 14,   NO_LINUX, uptime)
SYSCALL( 29,   NO_LINUX, waitpid)
SYSCALL( 30,        112, setsid)
SYSCALL( 31,   NO_LINUX, reboot)
SYSCALL( 32,   NO_LINUX, shutdown)
SYSCALL( 66,         56, clone)
SYSCALL( 67,        231, exit_group)
SYSCALL( 68,         61, wait4)
SYSCALL( 83,        105, setuid)
SYSCALL( 84,        106, setgid)
SYSCALL( 85,        124, getsid)
SYSCALL( 89,        110, getppid)
SYSCALL( 91,        121, getpgid)
SYSCALL( 94,        186, gettid)
SYSCALL( 92,        109, setpgid)
SYSCALL( 93,        111, getpgrp)

// --- identity ---
SYSCALL( 47,        102, getuid)
SYSCALL( 48,        107, geteuid)
SYSCALL( 69,        104, getgid)
SYSCALL( 70,        108, getegid)
SYSCALL( 71,         95, umask)

// --- memory ---
SYSCALL( 12,   NO_LINUX, sbrk)
SYSCALL( 35,          9, mmap)
SYSCALL( 36,         11, munmap)
// Shared memory. These carried NO_LINUX while they were ENOSYS stubs, which
// meant a musl-linked program calling shmget() never reached them at all --
// it got "bad syscall" from the ABI translation rather than an answer. Now
// that they do something, they need the numbers programs actually use.
SYSCALL( 37,         29, shmget)
SYSCALL( 38,         30, shmat)
SYSCALL( 39,         67, shmdt)
SYSCALL( 59,         10, mprotect)
SYSCALL( 74,         12, brk)

// --- filesystem ---
SYSCALL(  4,         22, pipe)
SYSCALL(  5,          0, read)
SYSCALL(  8,          5, fstat)
SYSCALL(  9,         80, chdir)
SYSCALL( 10,         32, dup)
SYSCALL( 15,          2, open)
SYSCALL( 16,          1, write)
SYSCALL( 17,        133, mknod)
SYSCALL( 18,         87, unlink)
SYSCALL( 19,         86, link)
SYSCALL( 20,         83, mkdir)
SYSCALL( 21,          3, close)
SYSCALL( 24,          8, lseek)
SYSCALL( 33,         33, dup2)
SYSCALL( 34,         72, fcntl)
// `delete` -- the recycle bin. It hides a file instead of removing it, so the
// blocks are never freed and a program that deletes a temp file gets no space
// back. Inherited from the third-party filesystem in kernel/fs/fs.c and
// orphaned by the decision to keep only Linux syscall numbering, so nothing
// reaches it. Its effect on read and write has been removed; the entry stays
// only because sys_delete() is still compiled, and both die with fs.c.
SYSCALL( 51,   NO_LINUX, delete)
SYSCALL( 52,   NO_LINUX, show)
SYSCALL( 53,   NO_LINUX, showstat)
SYSCALL( 54,         77, ftruncate)
SYSCALL( 55,         76, truncate)
SYSCALL( 56,         82, rename)
SYSCALL( 57,         88, symlink)
SYSCALL( 58,         89, readlink)
SYSCALL( 61,         79, getcwd)
SYSCALL( 73,         19, readv)
SYSCALL( 72,         20, writev)
SYSCALL( 76,          4, stat)
SYSCALL( 77,          6, lstat)
SYSCALL( 78,         21, access)
SYSCALL( 79,        257, openat)
SYSCALL( 80,         81, fchdir)
SYSCALL( 86,        292, dup3)
SYSCALL( 87,        293, pipe2)

// --- device / I/O ---
SYSCALL( 22,   NO_LINUX, vga_sync)
SYSCALL( 23,   NO_LINUX, getmouse)
SYSCALL( 45,         23, select)
SYSCALL( 46,          7, poll)
SYSCALL( 60,         16, ioctl)

// --- sockets ---
//
// These carried NO_LINUX while they were ENOSYS stubs, which meant a
// musl-linked program calling socket() never reached them at all -- the ABI
// translation answered "bad syscall" before the stub could answer ENOSYS.
// Now that they do something they need the numbers programs actually use.
//
// `shutdown` is deliberately not the name here: SchOS already has a native
// shutdown() that powers the machine off (syscall 32), and two syscalls
// cannot share a sys_ function name. Linux 48 maps to sockshutdown instead.
SYSCALL( 40,         41, socket)
SYSCALL( 41,         49, bind)
SYSCALL( 42,         50, listen)
SYSCALL( 43,         43, accept)
SYSCALL( 44,         42, connect)
SYSCALL(187,         44, sendto)
SYSCALL(188,         45, recvfrom)
SYSCALL(189,         48, sockshutdown)
SYSCALL(190,         53, socketpair)
SYSCALL(191,         54, setsockopt)
SYSCALL(192,         55, getsockopt)

// --- time ---
SYSCALL( 28,         37, alarm)
SYSCALL( 49,         96, gettimeofday)
SYSCALL( 50,         35, nanosleep)
SYSCALL( 88,        228, clock_gettime)

// --- signals ---
SYSCALL( 25,   NO_LINUX, sigfillset)
SYSCALL( 26,         14, sigprocmask)
SYSCALL( 27,   NO_LINUX, sigwait)
SYSCALL( 90,         13, rt_sigaction)

// --- POSIX / Linux-ABI compat ---
SYSCALL( 62,        158, arch_prctl)
SYSCALL( 95,         63, uname)
SYSCALL( 96,        217, getdents64)
SYSCALL( 63,        218, set_tid_address)
SYSCALL( 64,        273, set_robust_list)
SYSCALL( 65,        202, futex)
SYSCALL( 75,        302, prlimit)
SYSCALL( 81,   NO_LINUX, enable_linux_abi)
SYSCALL( 82,         97, getrlimit)

// --- signal extensions ---
SYSCALL( 97,         15, rt_sigreturn)
SYSCALL( 98,        131, sigaltstack)
SYSCALL( 99,        127, rt_sigpending)
SYSCALL(100,        128, rt_sigtimedwait)
SYSCALL(101,        130, rt_sigsuspend)

// --- process extensions ---
SYSCALL(102,        157, prctl)
SYSCALL(103,        234, tgkill)
SYSCALL(104,        200, tkill)
SYSCALL(105,         34, pause)
SYSCALL(106,   NO_LINUX, getitimer)
SYSCALL(107,   NO_LINUX, setitimer)
SYSCALL(108,         98, getrusage)
SYSCALL(109,        100, times)
SYSCALL(110,         99, sysinfo)
SYSCALL(111,         24, sched_yield)
SYSCALL(112,        204, sched_getaffinity)
SYSCALL(113,        203, sched_setaffinity)
SYSCALL(114,        247, waitid)

// --- identity extensions ---
SYSCALL(115,        113, setreuid)
SYSCALL(116,        114, setregid)
SYSCALL(117,        118, getresuid)
SYSCALL(118,        120, getresgid)
SYSCALL(119,        117, setresuid)
SYSCALL(120,        119, setresgid)
SYSCALL(121,        115, getgroups)
SYSCALL(122,        116, setgroups)
SYSCALL(123,        122, setfsuid)
SYSCALL(124,        123, setfsgid)

// --- filesystem extensions ---
SYSCALL(125,         90, chmod)
SYSCALL(126,         91, fchmod)
SYSCALL(127,         92, chown)
SYSCALL(128,         93, fchown)
SYSCALL(129,         94, lchown)
SYSCALL(130,         84, rmdir)
SYSCALL(131,   NO_LINUX, fsync)
SYSCALL(132,   NO_LINUX, fdatasync)
SYSCALL(133,        162, sync)
SYSCALL(134,         17, pread)
SYSCALL(135,         18, pwrite)
SYSCALL(148,        132, utime)
SYSCALL(149,        235, utimes)
SYSCALL(150,        261, utimensat)
SYSCALL(151,        187, sendfile)
SYSCALL(152,   NO_LINUX, preadv2)
SYSCALL(153,   NO_LINUX, pwritev2)
SYSCALL(154,        285, fallocate)
SYSCALL(155,        137, statfs)
SYSCALL(156,        138, fstatfs)
SYSCALL(157,        161, chroot)

// --- attributes, and the index over them (SchFS phase 5) ---
//
// Linux's numbers for the xattr calls, so a program that already knows how to
// set an extended attribute needs no changes. schfs_query has no Linux
// equivalent -- it is the one genuinely new call -- so it is native-only.
SYSCALL(193,        188, setxattr)
SYSCALL(194,        191, getxattr)
SYSCALL(195,        197, removexattr)
SYSCALL(196,   NO_LINUX, schfs_index)
SYSCALL(197,   NO_LINUX, schfs_query)

// --- memory extensions ---
SYSCALL(136,         28, madvise)
SYSCALL(137,   NO_LINUX, mremap)
SYSCALL(138,   NO_LINUX, msync)
SYSCALL(139,   NO_LINUX, mincore)
SYSCALL(140,        149, mlock)
SYSCALL(141,        150, munlock)
SYSCALL(142,        151, mlockall)
SYSCALL(143,        152, munlockall)
SYSCALL(144,        221, fadvise64)
SYSCALL(145,        160, setrlimit)
SYSCALL(146,   NO_LINUX, getpriority)
SYSCALL(147,   NO_LINUX, setpriority)

// --- at-syscalls ---
SYSCALL(158,        258, mkdirat)
SYSCALL(159,        259, mknodat)
SYSCALL(160,        263, unlinkat)
SYSCALL(161,        264, renameat)
SYSCALL(162,        265, linkat)
SYSCALL(163,        266, symlinkat)
SYSCALL(164,        267, readlinkat)
SYSCALL(165,        268, fchmodat)
SYSCALL(166,        269, faccessat)
SYSCALL(167,        262, fstatat)
SYSCALL(168,        260, fchownat)
SYSCALL(169,        316, renameat2)

// --- time extensions ---
SYSCALL(170,        201, time)
SYSCALL(171,        229, clock_getres)
SYSCALL(172,        230, clock_nanosleep)

// --- misc ---
SYSCALL(173,        103, syslog)
SYSCALL(174,        318, getrandom)
SYSCALL(175,        270, pselect6)
SYSCALL(176,        271, ppoll)

// --- epoll / eventfd / signalfd / timerfd ---
SYSCALL(177,        291, epoll_create1)
SYSCALL(178,        233, epoll_ctl)
SYSCALL(179,        232, epoll_wait)
SYSCALL(180,        282, signalfd4)
SYSCALL(181,        284, eventfd2)
SYSCALL(182,        283, timerfd_create)
SYSCALL(183,        286, timerfd_settime)
SYSCALL(184,        287, timerfd_gettime)

// --- mounts ---
SYSCALL(185,        165, mount)
SYSCALL(186,        166, umount2)


// --- additional Linux numbers routed to an existing handler ---
SYSCALL_ALIAS(  58, fork)
SYSCALL_ALIAS( 280, utimensat)
SYSCALL_ALIAS( 281, epoll_wait)
SYSCALL_ALIAS( 289, signalfd4)
SYSCALL_ALIAS( 290, eventfd2)
SYSCALL_ALIAS( 295, readv)
SYSCALL_ALIAS( 296, writev)
// accept4() differs from accept() only in a flags argument naming
// SOCK_CLOEXEC/SOCK_NONBLOCK, neither of which is honoured yet.
SYSCALL_ALIAS( 288, accept)