Merge remote-tracking branch 'origin/master' into llvm14

14 files changed, 4760 insertions, 3861 deletions

diff --git a/lib/std/os/linux/arm-eabi.zig b/lib/std/os/linux/arm-eabi.zig
index 852f6e9283..cd7509d265 100644
--- a/lib/std/os/linux/arm-eabi.zig
+++ b/lib/std/os/linux/arm-eabi.zig
@@ -1,6 +1,7 @@
 const std = @import("../../std.zig");
 const maxInt = std.math.maxInt;
 const linux = std.os.linux;
+const SYS = linux.SYS;
 const iovec = std.os.iovec;
 const iovec_const = std.os.iovec_const;
 const socklen_t = linux.socklen_t;
@@ -99,7 +100,10 @@ pub fn syscall6(
 
 /// This matches the libc clone function.
 pub extern fn clone(
-    func: fn (arg: usize) callconv(.C) u8,
+    func: switch (@import("builtin").zig_backend) {
+        .stage1 => fn (arg: usize) callconv(.C) u8,
+        else => *const fn (arg: usize) callconv(.C) u8,
+    },
     stack: usize,
     flags: u32,
     arg: usize,
@@ -124,417 +128,6 @@ pub fn restore_rt() callconv(.Naked) void {
     );
 }
 
-pub const SYS = enum(usize) {
-    restart_syscall = 0,
-    exit = 1,
-    fork = 2,
-    read = 3,
-    write = 4,
-    open = 5,
-    close = 6,
-    creat = 8,
-    link = 9,
-    unlink = 10,
-    execve = 11,
-    chdir = 12,
-    mknod = 14,
-    chmod = 15,
-    lchown = 16,
-    lseek = 19,
-    getpid = 20,
-    mount = 21,
-    setuid = 23,
-    getuid = 24,
-    ptrace = 26,
-    pause = 29,
-    access = 33,
-    nice = 34,
-    sync = 36,
-    kill = 37,
-    rename = 38,
-    mkdir = 39,
-    rmdir = 40,
-    dup = 41,
-    pipe = 42,
-    times = 43,
-    brk = 45,
-    setgid = 46,
-    getgid = 47,
-    geteuid = 49,
-    getegid = 50,
-    acct = 51,
-    umount2 = 52,
-    ioctl = 54,
-    fcntl = 55,
-    setpgid = 57,
-    umask = 60,
-    chroot = 61,
-    ustat = 62,
-    dup2 = 63,
-    getppid = 64,
-    getpgrp = 65,
-    setsid = 66,
-    sigaction = 67,
-    setreuid = 70,
-    setregid = 71,
-    sigsuspend = 72,
-    sigpending = 73,
-    sethostname = 74,
-    setrlimit = 75,
-    getrusage = 77,
-    gettimeofday = 78,
-    settimeofday = 79,
-    getgroups = 80,
-    setgroups = 81,
-    symlink = 83,
-    readlink = 85,
-    uselib = 86,
-    swapon = 87,
-    reboot = 88,
-    munmap = 91,
-    truncate = 92,
-    ftruncate = 93,
-    fchmod = 94,
-    fchown = 95,
-    getpriority = 96,
-    setpriority = 97,
-    statfs = 99,
-    fstatfs = 100,
-    syslog = 103,
-    setitimer = 104,
-    getitimer = 105,
-    stat = 106,
-    lstat = 107,
-    fstat = 108,
-    vhangup = 111,
-    wait4 = 114,
-    swapoff = 115,
-    sysinfo = 116,
-    fsync = 118,
-    sigreturn = 119,
-    clone = 120,
-    setdomainname = 121,
-    uname = 122,
-    adjtimex = 124,
-    mprotect = 125,
-    sigprocmask = 126,
-    init_module = 128,
-    delete_module = 129,
-    quotactl = 131,
-    getpgid = 132,
-    fchdir = 133,
-    bdflush = 134,
-    sysfs = 135,
-    personality = 136,
-    setfsuid = 138,
-    setfsgid = 139,
-    _llseek = 140,
-    getdents = 141,
-    _newselect = 142,
-    flock = 143,
-    msync = 144,
-    readv = 145,
-    writev = 146,
-    getsid = 147,
-    fdatasync = 148,
-    _sysctl = 149,
-    mlock = 150,
-    munlock = 151,
-    mlockall = 152,
-    munlockall = 153,
-    sched_setparam = 154,
-    sched_getparam = 155,
-    sched_setscheduler = 156,
-    sched_getscheduler = 157,
-    sched_yield = 158,
-    sched_get_priority_max = 159,
-    sched_get_priority_min = 160,
-    sched_rr_get_interval = 161,
-    nanosleep = 162,
-    mremap = 163,
-    setresuid = 164,
-    getresuid = 165,
-    poll = 168,
-    nfsservctl = 169,
-    setresgid = 170,
-    getresgid = 171,
-    prctl = 172,
-    rt_sigreturn = 173,
-    rt_sigaction = 174,
-    rt_sigprocmask = 175,
-    rt_sigpending = 176,
-    rt_sigtimedwait = 177,
-    rt_sigqueueinfo = 178,
-    rt_sigsuspend = 179,
-    pread64 = 180,
-    pwrite64 = 181,
-    chown = 182,
-    getcwd = 183,
-    capget = 184,
-    capset = 185,
-    sigaltstack = 186,
-    sendfile = 187,
-    vfork = 190,
-    ugetrlimit = 191,
-    mmap2 = 192,
-    truncate64 = 193,
-    ftruncate64 = 194,
-    stat64 = 195,
-    lstat64 = 196,
-    fstat64 = 197,
-    lchown32 = 198,
-    getuid32 = 199,
-    getgid32 = 200,
-    geteuid32 = 201,
-    getegid32 = 202,
-    setreuid32 = 203,
-    setregid32 = 204,
-    getgroups32 = 205,
-    setgroups32 = 206,
-    fchown32 = 207,
-    setresuid32 = 208,
-    getresuid32 = 209,
-    setresgid32 = 210,
-    getresgid32 = 211,
-    chown32 = 212,
-    setuid32 = 213,
-    setgid32 = 214,
-    setfsuid32 = 215,
-    setfsgid32 = 216,
-    getdents64 = 217,
-    pivot_root = 218,
-    mincore = 219,
-    madvise = 220,
-    fcntl64 = 221,
-    gettid = 224,
-    readahead = 225,
-    setxattr = 226,
-    lsetxattr = 227,
-    fsetxattr = 228,
-    getxattr = 229,
-    lgetxattr = 230,
-    fgetxattr = 231,
-    listxattr = 232,
-    llistxattr = 233,
-    flistxattr = 234,
-    removexattr = 235,
-    lremovexattr = 236,
-    fremovexattr = 237,
-    tkill = 238,
-    sendfile64 = 239,
-    futex = 240,
-    sched_setaffinity = 241,
-    sched_getaffinity = 242,
-    io_setup = 243,
-    io_destroy = 244,
-    io_getevents = 245,
-    io_submit = 246,
-    io_cancel = 247,
-    exit_group = 248,
-    lookup_dcookie = 249,
-    epoll_create = 250,
-    epoll_ctl = 251,
-    epoll_wait = 252,
-    remap_file_pages = 253,
-    set_tid_address = 256,
-    timer_create = 257,
-    timer_settime = 258,
-    timer_gettime = 259,
-    timer_getoverrun = 260,
-    timer_delete = 261,
-    clock_settime = 262,
-    clock_gettime = 263,
-    clock_getres = 264,
-    clock_nanosleep = 265,
-    statfs64 = 266,
-    fstatfs64 = 267,
-    tgkill = 268,
-    utimes = 269,
-    fadvise64_64 = 270,
-    pciconfig_iobase = 271,
-    pciconfig_read = 272,
-    pciconfig_write = 273,
-    mq_open = 274,
-    mq_unlink = 275,
-    mq_timedsend = 276,
-    mq_timedreceive = 277,
-    mq_notify = 278,
-    mq_getsetattr = 279,
-    waitid = 280,
-    socket = 281,
-    bind = 282,
-    connect = 283,
-    listen = 284,
-    accept = 285,
-    getsockname = 286,
-    getpeername = 287,
-    socketpair = 288,
-    send = 289,
-    sendto = 290,
-    recv = 291,
-    recvfrom = 292,
-    shutdown = 293,
-    setsockopt = 294,
-    getsockopt = 295,
-    sendmsg = 296,
-    recvmsg = 297,
-    semop = 298,
-    semget = 299,
-    semctl = 300,
-    msgsnd = 301,
-    msgrcv = 302,
-    msgget = 303,
-    msgctl = 304,
-    shmat = 305,
-    shmdt = 306,
-    shmget = 307,
-    shmctl = 308,
-    add_key = 309,
-    request_key = 310,
-    keyctl = 311,
-    semtimedop = 312,
-    vserver = 313,
-    ioprio_set = 314,
-    ioprio_get = 315,
-    inotify_init = 316,
-    inotify_add_watch = 317,
-    inotify_rm_watch = 318,
-    mbind = 319,
-    get_mempolicy = 320,
-    set_mempolicy = 321,
-    openat = 322,
-    mkdirat = 323,
-    mknodat = 324,
-    fchownat = 325,
-    futimesat = 326,
-    fstatat64 = 327,
-    unlinkat = 328,
-    renameat = 329,
-    linkat = 330,
-    symlinkat = 331,
-    readlinkat = 332,
-    fchmodat = 333,
-    faccessat = 334,
-    pselect6 = 335,
-    ppoll = 336,
-    unshare = 337,
-    set_robust_list = 338,
-    get_robust_list = 339,
-    splice = 340,
-    sync_file_range = 341,
-    tee = 342,
-    vmsplice = 343,
-    move_pages = 344,
-    getcpu = 345,
-    epoll_pwait = 346,
-    kexec_load = 347,
-    utimensat = 348,
-    signalfd = 349,
-    timerfd_create = 350,
-    eventfd = 351,
-    fallocate = 352,
-    timerfd_settime = 353,
-    timerfd_gettime = 354,
-    signalfd4 = 355,
-    eventfd2 = 356,
-    epoll_create1 = 357,
-    dup3 = 358,
-    pipe2 = 359,
-    inotify_init1 = 360,
-    preadv = 361,
-    pwritev = 362,
-    rt_tgsigqueueinfo = 363,
-    perf_event_open = 364,
-    recvmmsg = 365,
-    accept4 = 366,
-    fanotify_init = 367,
-    fanotify_mark = 368,
-    prlimit64 = 369,
-    name_to_handle_at = 370,
-    open_by_handle_at = 371,
-    clock_adjtime = 372,
-    syncfs = 373,
-    sendmmsg = 374,
-    setns = 375,
-    process_vm_readv = 376,
-    process_vm_writev = 377,
-    kcmp = 378,
-    finit_module = 379,
-    sched_setattr = 380,
-    sched_getattr = 381,
-    renameat2 = 382,
-    seccomp = 383,
-    getrandom = 384,
-    memfd_create = 385,
-    bpf = 386,
-    execveat = 387,
-    userfaultfd = 388,
-    membarrier = 389,
-    mlock2 = 390,
-    copy_file_range = 391,
-    preadv2 = 392,
-    pwritev2 = 393,
-    pkey_mprotect = 394,
-    pkey_alloc = 395,
-    pkey_free = 396,
-    statx = 397,
-    rseq = 398,
-    io_pgetevents = 399,
-    migrate_pages = 400,
-    kexec_file_load = 401,
-    clock_gettime64 = 403,
-    clock_settime64 = 404,
-    clock_adjtime64 = 405,
-    clock_getres_time64 = 406,
-    clock_nanosleep_time64 = 407,
-    timer_gettime64 = 408,
-    timer_settime64 = 409,
-    timerfd_gettime64 = 410,
-    timerfd_settime64 = 411,
-    utimensat_time64 = 412,
-    pselect6_time64 = 413,
-    ppoll_time64 = 414,
-    io_pgetevents_time64 = 416,
-    recvmmsg_time64 = 417,
-    mq_timedsend_time64 = 418,
-    mq_timedreceive_time64 = 419,
-    semtimedop_time64 = 420,
-    rt_sigtimedwait_time64 = 421,
-    futex_time64 = 422,
-    sched_rr_get_interval_time64 = 423,
-    pidfd_send_signal = 424,
-    io_uring_setup = 425,
-    io_uring_enter = 426,
-    io_uring_register = 427,
-    open_tree = 428,
-    move_mount = 429,
-    fsopen = 430,
-    fsconfig = 431,
-    fsmount = 432,
-    fspick = 433,
-    pidfd_open = 434,
-    clone3 = 435,
-    close_range = 436,
-    openat2 = 437,
-    pidfd_getfd = 438,
-    faccessat2 = 439,
-    process_madvise = 440,
-    epoll_pwait2 = 441,
-    mount_setattr = 442,
-    landlock_create_ruleset = 444,
-    landlock_add_rule = 445,
-    landlock_restrict_self = 446,
-
-    breakpoint = 0x0f0001,
-    cacheflush = 0x0f0002,
-    usr26 = 0x0f0003,
-    usr32 = 0x0f0004,
-    set_tls = 0x0f0005,
-    get_tls = 0x0f0006,
-
-    _,
-};
-
 pub const MMAP2_UNIT = 4096;
 
 pub const O = struct {
@@ -638,33 +231,33 @@ pub const HWCAP = struct {
 };
 
 pub const Flock = extern struct {
-    l_type: i16,
-    l_whence: i16,
+    type: i16,
+    whence: i16,
     __pad0: [4]u8,
-    l_start: off_t,
-    l_len: off_t,
-    l_pid: pid_t,
+    start: off_t,
+    len: off_t,
+    pid: pid_t,
     __unused: [4]u8,
 };
 
 pub const msghdr = extern struct {
-    msg_name: ?*sockaddr,
-    msg_namelen: socklen_t,
-    msg_iov: [*]iovec,
-    msg_iovlen: i32,
-    msg_control: ?*anyopaque,
-    msg_controllen: socklen_t,
-    msg_flags: i32,
+    name: ?*sockaddr,
+    namelen: socklen_t,
+    iov: [*]iovec,
+    iovlen: i32,
+    control: ?*anyopaque,
+    controllen: socklen_t,
+    flags: i32,
 };
 
 pub const msghdr_const = extern struct {
-    msg_name: ?*const sockaddr,
-    msg_namelen: socklen_t,
-    msg_iov: [*]iovec_const,
-    msg_iovlen: i32,
-    msg_control: ?*anyopaque,
-    msg_controllen: socklen_t,
-    msg_flags: i32,
+    name: ?*const sockaddr,
+    namelen: socklen_t,
+    iov: [*]const iovec_const,
+    iovlen: i32,
+    control: ?*const anyopaque,
+    controllen: socklen_t,
+    flags: i32,
 };
 
 pub const blksize_t = i32;
@@ -744,7 +337,7 @@ pub const mcontext_t = extern struct {
 
 pub const ucontext_t = extern struct {
     flags: usize,
-    link: *ucontext_t,
+    link: ?*ucontext_t,
     stack: stack_t,
     mcontext: mcontext_t,
     sigmask: sigset_t,
diff --git a/lib/std/os/linux/arm64.zig b/lib/std/os/linux/arm64.zig
index 16e3b897de..8f928cab36 100644
--- a/lib/std/os/linux/arm64.zig
+++ b/lib/std/os/linux/arm64.zig
@@ -1,10 +1,11 @@
 const std = @import("../../std.zig");
 const maxInt = std.math.maxInt;
 const linux = std.os.linux;
+const SYS = linux.SYS;
 const socklen_t = linux.socklen_t;
 const sockaddr = linux.sockaddr;
-const iovec = linux.iovec;
-const iovec_const = linux.iovec_const;
+const iovec = std.os.iovec;
+const iovec_const = std.os.iovec_const;
 const uid_t = linux.uid_t;
 const gid_t = linux.gid_t;
 const pid_t = linux.pid_t;
@@ -97,8 +98,13 @@ pub fn syscall6(
     );
 }
 
+const CloneFn = switch (@import("builtin").zig_backend) {
+    .stage1 => fn (arg: usize) callconv(.C) u8,
+    else => *const fn (arg: usize) callconv(.C) u8,
+};
+
 /// This matches the libc clone function.
-pub extern fn clone(func: fn (arg: usize) callconv(.C) u8, stack: usize, flags: u32, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
+pub extern fn clone(func: CloneFn, stack: usize, flags: u32, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
 
 pub const restore = restore_rt;
 
@@ -110,311 +116,6 @@ pub fn restore_rt() callconv(.Naked) void {
     );
 }
 
-pub const SYS = enum(usize) {
-    io_setup = 0,
-    io_destroy = 1,
-    io_submit = 2,
-    io_cancel = 3,
-    io_getevents = 4,
-    setxattr = 5,
-    lsetxattr = 6,
-    fsetxattr = 7,
-    getxattr = 8,
-    lgetxattr = 9,
-    fgetxattr = 10,
-    listxattr = 11,
-    llistxattr = 12,
-    flistxattr = 13,
-    removexattr = 14,
-    lremovexattr = 15,
-    fremovexattr = 16,
-    getcwd = 17,
-    lookup_dcookie = 18,
-    eventfd2 = 19,
-    epoll_create1 = 20,
-    epoll_ctl = 21,
-    epoll_pwait = 22,
-    dup = 23,
-    dup3 = 24,
-    fcntl = 25,
-    inotify_init1 = 26,
-    inotify_add_watch = 27,
-    inotify_rm_watch = 28,
-    ioctl = 29,
-    ioprio_set = 30,
-    ioprio_get = 31,
-    flock = 32,
-    mknodat = 33,
-    mkdirat = 34,
-    unlinkat = 35,
-    symlinkat = 36,
-    linkat = 37,
-    renameat = 38,
-    umount2 = 39,
-    mount = 40,
-    pivot_root = 41,
-    nfsservctl = 42,
-    statfs = 43,
-    fstatfs = 44,
-    truncate = 45,
-    ftruncate = 46,
-    fallocate = 47,
-    faccessat = 48,
-    chdir = 49,
-    fchdir = 50,
-    chroot = 51,
-    fchmod = 52,
-    fchmodat = 53,
-    fchownat = 54,
-    fchown = 55,
-    openat = 56,
-    close = 57,
-    vhangup = 58,
-    pipe2 = 59,
-    quotactl = 60,
-    getdents64 = 61,
-    lseek = 62,
-    read = 63,
-    write = 64,
-    readv = 65,
-    writev = 66,
-    pread64 = 67,
-    pwrite64 = 68,
-    preadv = 69,
-    pwritev = 70,
-    sendfile = 71,
-    pselect6 = 72,
-    ppoll = 73,
-    signalfd4 = 74,
-    vmsplice = 75,
-    splice = 76,
-    tee = 77,
-    readlinkat = 78,
-    fstatat = 79,
-    fstat = 80,
-    sync = 81,
-    fsync = 82,
-    fdatasync = 83,
-    sync_file_range = 84,
-    timerfd_create = 85,
-    timerfd_settime = 86,
-    timerfd_gettime = 87,
-    utimensat = 88,
-    acct = 89,
-    capget = 90,
-    capset = 91,
-    personality = 92,
-    exit = 93,
-    exit_group = 94,
-    waitid = 95,
-    set_tid_address = 96,
-    unshare = 97,
-    futex = 98,
-    set_robust_list = 99,
-    get_robust_list = 100,
-    nanosleep = 101,
-    getitimer = 102,
-    setitimer = 103,
-    kexec_load = 104,
-    init_module = 105,
-    delete_module = 106,
-    timer_create = 107,
-    timer_gettime = 108,
-    timer_getoverrun = 109,
-    timer_settime = 110,
-    timer_delete = 111,
-    clock_settime = 112,
-    clock_gettime = 113,
-    clock_getres = 114,
-    clock_nanosleep = 115,
-    syslog = 116,
-    ptrace = 117,
-    sched_setparam = 118,
-    sched_setscheduler = 119,
-    sched_getscheduler = 120,
-    sched_getparam = 121,
-    sched_setaffinity = 122,
-    sched_getaffinity = 123,
-    sched_yield = 124,
-    sched_get_priority_max = 125,
-    sched_get_priority_min = 126,
-    sched_rr_get_interval = 127,
-    restart_syscall = 128,
-    kill = 129,
-    tkill = 130,
-    tgkill = 131,
-    sigaltstack = 132,
-    rt_sigsuspend = 133,
-    rt_sigaction = 134,
-    rt_sigprocmask = 135,
-    rt_sigpending = 136,
-    rt_sigtimedwait = 137,
-    rt_sigqueueinfo = 138,
-    rt_sigreturn = 139,
-    setpriority = 140,
-    getpriority = 141,
-    reboot = 142,
-    setregid = 143,
-    setgid = 144,
-    setreuid = 145,
-    setuid = 146,
-    setresuid = 147,
-    getresuid = 148,
-    setresgid = 149,
-    getresgid = 150,
-    setfsuid = 151,
-    setfsgid = 152,
-    times = 153,
-    setpgid = 154,
-    getpgid = 155,
-    getsid = 156,
-    setsid = 157,
-    getgroups = 158,
-    setgroups = 159,
-    uname = 160,
-    sethostname = 161,
-    setdomainname = 162,
-    getrlimit = 163,
-    setrlimit = 164,
-    getrusage = 165,
-    umask = 166,
-    prctl = 167,
-    getcpu = 168,
-    gettimeofday = 169,
-    settimeofday = 170,
-    adjtimex = 171,
-    getpid = 172,
-    getppid = 173,
-    getuid = 174,
-    geteuid = 175,
-    getgid = 176,
-    getegid = 177,
-    gettid = 178,
-    sysinfo = 179,
-    mq_open = 180,
-    mq_unlink = 181,
-    mq_timedsend = 182,
-    mq_timedreceive = 183,
-    mq_notify = 184,
-    mq_getsetattr = 185,
-    msgget = 186,
-    msgctl = 187,
-    msgrcv = 188,
-    msgsnd = 189,
-    semget = 190,
-    semctl = 191,
-    semtimedop = 192,
-    semop = 193,
-    shmget = 194,
-    shmctl = 195,
-    shmat = 196,
-    shmdt = 197,
-    socket = 198,
-    socketpair = 199,
-    bind = 200,
-    listen = 201,
-    accept = 202,
-    connect = 203,
-    getsockname = 204,
-    getpeername = 205,
-    sendto = 206,
-    recvfrom = 207,
-    setsockopt = 208,
-    getsockopt = 209,
-    shutdown = 210,
-    sendmsg = 211,
-    recvmsg = 212,
-    readahead = 213,
-    brk = 214,
-    munmap = 215,
-    mremap = 216,
-    add_key = 217,
-    request_key = 218,
-    keyctl = 219,
-    clone = 220,
-    execve = 221,
-    mmap = 222,
-    fadvise64 = 223,
-    swapon = 224,
-    swapoff = 225,
-    mprotect = 226,
-    msync = 227,
-    mlock = 228,
-    munlock = 229,
-    mlockall = 230,
-    munlockall = 231,
-    mincore = 232,
-    madvise = 233,
-    remap_file_pages = 234,
-    mbind = 235,
-    get_mempolicy = 236,
-    set_mempolicy = 237,
-    migrate_pages = 238,
-    move_pages = 239,
-    rt_tgsigqueueinfo = 240,
-    perf_event_open = 241,
-    accept4 = 242,
-    recvmmsg = 243,
-    arch_specific_syscall = 244,
-    wait4 = 260,
-    prlimit64 = 261,
-    fanotify_init = 262,
-    fanotify_mark = 263,
-    clock_adjtime = 266,
-    syncfs = 267,
-    setns = 268,
-    sendmmsg = 269,
-    process_vm_readv = 270,
-    process_vm_writev = 271,
-    kcmp = 272,
-    finit_module = 273,
-    sched_setattr = 274,
-    sched_getattr = 275,
-    renameat2 = 276,
-    seccomp = 277,
-    getrandom = 278,
-    memfd_create = 279,
-    bpf = 280,
-    execveat = 281,
-    userfaultfd = 282,
-    membarrier = 283,
-    mlock2 = 284,
-    copy_file_range = 285,
-    preadv2 = 286,
-    pwritev2 = 287,
-    pkey_mprotect = 288,
-    pkey_alloc = 289,
-    pkey_free = 290,
-    statx = 291,
-    io_pgetevents = 292,
-    rseq = 293,
-    kexec_file_load = 294,
-    pidfd_send_signal = 424,
-    io_uring_setup = 425,
-    io_uring_enter = 426,
-    io_uring_register = 427,
-    open_tree = 428,
-    move_mount = 429,
-    fsopen = 430,
-    fsconfig = 431,
-    fsmount = 432,
-    fspick = 433,
-    pidfd_open = 434,
-    clone3 = 435,
-    close_range = 436,
-    openat2 = 437,
-    pidfd_getfd = 438,
-    faccessat2 = 439,
-    process_madvise = 440,
-    epoll_pwait2 = 441,
-    mount_setattr = 442,
-    landlock_create_ruleset = 444,
-    landlock_add_rule = 445,
-    landlock_restrict_self = 446,
-
-    _,
-};
-
 pub const O = struct {
     pub const CREAT = 0o100;
     pub const EXCL = 0o200;
@@ -490,36 +191,36 @@ pub const VDSO = struct {
 };
 
 pub const Flock = extern struct {
-    l_type: i16,
-    l_whence: i16,
-    l_start: off_t,
-    l_len: off_t,
-    l_pid: pid_t,
+    type: i16,
+    whence: i16,
+    start: off_t,
+    len: off_t,
+    pid: pid_t,
     __unused: [4]u8,
 };
 
 pub const msghdr = extern struct {
-    msg_name: ?*sockaddr,
-    msg_namelen: socklen_t,
-    msg_iov: [*]iovec,
-    msg_iovlen: i32,
+    name: ?*sockaddr,
+    namelen: socklen_t,
+    iov: [*]iovec,
+    iovlen: i32,
     __pad1: i32 = 0,
-    msg_control: ?*anyopaque,
-    msg_controllen: socklen_t,
+    control: ?*anyopaque,
+    controllen: socklen_t,
     __pad2: socklen_t = 0,
-    msg_flags: i32,
+    flags: i32,
 };
 
 pub const msghdr_const = extern struct {
-    msg_name: ?*const sockaddr,
-    msg_namelen: socklen_t,
-    msg_iov: [*]iovec_const,
-    msg_iovlen: i32,
+    name: ?*const sockaddr,
+    namelen: socklen_t,
+    iov: [*]const iovec_const,
+    iovlen: i32,
     __pad1: i32 = 0,
-    msg_control: ?*anyopaque,
-    msg_controllen: socklen_t,
+    control: ?*const anyopaque,
+    controllen: socklen_t,
     __pad2: socklen_t = 0,
-    msg_flags: i32,
+    flags: i32,
 };
 
 pub const blksize_t = i32;
@@ -586,7 +287,7 @@ pub const mcontext_t = extern struct {
 
 pub const ucontext_t = extern struct {
     flags: usize,
-    link: *ucontext_t,
+    link: ?*ucontext_t,
     stack: stack_t,
     sigmask: sigset_t,
     mcontext: mcontext_t,
diff --git a/lib/std/os/linux/i386.zig b/lib/std/os/linux/i386.zig
index 0b9a05c7c7..9ca127eb0c 100644
--- a/lib/std/os/linux/i386.zig
+++ b/lib/std/os/linux/i386.zig
@@ -1,9 +1,10 @@
 const std = @import("../../std.zig");
 const maxInt = std.math.maxInt;
 const linux = std.os.linux;
+const SYS = linux.SYS;
 const socklen_t = linux.socklen_t;
-const iovec = linux.iovec;
-const iovec_const = linux.iovec_const;
+const iovec = std.os.iovec;
+const iovec_const = std.os.iovec_const;
 const uid_t = linux.uid_t;
 const gid_t = linux.gid_t;
 const pid_t = linux.pid_t;
@@ -117,8 +118,13 @@ pub fn socketcall(call: usize, args: [*]usize) usize {
     );
 }
 
+const CloneFn = switch (@import("builtin").zig_backend) {
+    .stage1 => fn (arg: usize) callconv(.C) u8,
+    else => *const fn (arg: usize) callconv(.C) u8,
+};
+
 /// This matches the libc clone function.
-pub extern fn clone(func: fn (arg: usize) callconv(.C) u8, stack: usize, flags: u32, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
+pub extern fn clone(func: CloneFn, stack: usize, flags: u32, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
 
 pub fn restore() callconv(.Naked) void {
     return asm volatile ("int $0x80"
@@ -136,447 +142,6 @@ pub fn restore_rt() callconv(.Naked) void {
     );
 }
 
-pub const SYS = enum(usize) {
-    restart_syscall = 0,
-    exit = 1,
-    fork = 2,
-    read = 3,
-    write = 4,
-    open = 5,
-    close = 6,
-    waitpid = 7,
-    creat = 8,
-    link = 9,
-    unlink = 10,
-    execve = 11,
-    chdir = 12,
-    time = 13,
-    mknod = 14,
-    chmod = 15,
-    lchown = 16,
-    @"break" = 17,
-    oldstat = 18,
-    lseek = 19,
-    getpid = 20,
-    mount = 21,
-    umount = 22,
-    setuid = 23,
-    getuid = 24,
-    stime = 25,
-    ptrace = 26,
-    alarm = 27,
-    oldfstat = 28,
-    pause = 29,
-    utime = 30,
-    stty = 31,
-    gtty = 32,
-    access = 33,
-    nice = 34,
-    ftime = 35,
-    sync = 36,
-    kill = 37,
-    rename = 38,
-    mkdir = 39,
-    rmdir = 40,
-    dup = 41,
-    pipe = 42,
-    times = 43,
-    prof = 44,
-    brk = 45,
-    setgid = 46,
-    getgid = 47,
-    signal = 48,
-    geteuid = 49,
-    getegid = 50,
-    acct = 51,
-    umount2 = 52,
-    lock = 53,
-    ioctl = 54,
-    fcntl = 55,
-    mpx = 56,
-    setpgid = 57,
-    ulimit = 58,
-    oldolduname = 59,
-    umask = 60,
-    chroot = 61,
-    ustat = 62,
-    dup2 = 63,
-    getppid = 64,
-    getpgrp = 65,
-    setsid = 66,
-    sigaction = 67,
-    sgetmask = 68,
-    ssetmask = 69,
-    setreuid = 70,
-    setregid = 71,
-    sigsuspend = 72,
-    sigpending = 73,
-    sethostname = 74,
-    setrlimit = 75,
-    getrlimit = 76,
-    getrusage = 77,
-    gettimeofday = 78,
-    settimeofday = 79,
-    getgroups = 80,
-    setgroups = 81,
-    select = 82,
-    symlink = 83,
-    oldlstat = 84,
-    readlink = 85,
-    uselib = 86,
-    swapon = 87,
-    reboot = 88,
-    readdir = 89,
-    mmap = 90,
-    munmap = 91,
-    truncate = 92,
-    ftruncate = 93,
-    fchmod = 94,
-    fchown = 95,
-    getpriority = 96,
-    setpriority = 97,
-    profil = 98,
-    statfs = 99,
-    fstatfs = 100,
-    ioperm = 101,
-    socketcall = 102,
-    syslog = 103,
-    setitimer = 104,
-    getitimer = 105,
-    stat = 106,
-    lstat = 107,
-    fstat = 108,
-    olduname = 109,
-    iopl = 110,
-    vhangup = 111,
-    idle = 112,
-    vm86old = 113,
-    wait4 = 114,
-    swapoff = 115,
-    sysinfo = 116,
-    ipc = 117,
-    fsync = 118,
-    sigreturn = 119,
-    clone = 120,
-    setdomainname = 121,
-    uname = 122,
-    modify_ldt = 123,
-    adjtimex = 124,
-    mprotect = 125,
-    sigprocmask = 126,
-    create_module = 127,
-    init_module = 128,
-    delete_module = 129,
-    get_kernel_syms = 130,
-    quotactl = 131,
-    getpgid = 132,
-    fchdir = 133,
-    bdflush = 134,
-    sysfs = 135,
-    personality = 136,
-    afs_syscall = 137,
-    setfsuid = 138,
-    setfsgid = 139,
-    _llseek = 140,
-    getdents = 141,
-    _newselect = 142,
-    flock = 143,
-    msync = 144,
-    readv = 145,
-    writev = 146,
-    getsid = 147,
-    fdatasync = 148,
-    _sysctl = 149,
-    mlock = 150,
-    munlock = 151,
-    mlockall = 152,
-    munlockall = 153,
-    sched_setparam = 154,
-    sched_getparam = 155,
-    sched_setscheduler = 156,
-    sched_getscheduler = 157,
-    sched_yield = 158,
-    sched_get_priority_max = 159,
-    sched_get_priority_min = 160,
-    sched_rr_get_interval = 161,
-    nanosleep = 162,
-    mremap = 163,
-    setresuid = 164,
-    getresuid = 165,
-    vm86 = 166,
-    query_module = 167,
-    poll = 168,
-    nfsservctl = 169,
-    setresgid = 170,
-    getresgid = 171,
-    prctl = 172,
-    rt_sigreturn = 173,
-    rt_sigaction = 174,
-    rt_sigprocmask = 175,
-    rt_sigpending = 176,
-    rt_sigtimedwait = 177,
-    rt_sigqueueinfo = 178,
-    rt_sigsuspend = 179,
-    pread64 = 180,
-    pwrite64 = 181,
-    chown = 182,
-    getcwd = 183,
-    capget = 184,
-    capset = 185,
-    sigaltstack = 186,
-    sendfile = 187,
-    getpmsg = 188,
-    putpmsg = 189,
-    vfork = 190,
-    ugetrlimit = 191,
-    mmap2 = 192,
-    truncate64 = 193,
-    ftruncate64 = 194,
-    stat64 = 195,
-    lstat64 = 196,
-    fstat64 = 197,
-    lchown32 = 198,
-    getuid32 = 199,
-    getgid32 = 200,
-    geteuid32 = 201,
-    getegid32 = 202,
-    setreuid32 = 203,
-    setregid32 = 204,
-    getgroups32 = 205,
-    setgroups32 = 206,
-    fchown32 = 207,
-    setresuid32 = 208,
-    getresuid32 = 209,
-    setresgid32 = 210,
-    getresgid32 = 211,
-    chown32 = 212,
-    setuid32 = 213,
-    setgid32 = 214,
-    setfsuid32 = 215,
-    setfsgid32 = 216,
-    pivot_root = 217,
-    mincore = 218,
-    madvise = 219,
-    getdents64 = 220,
-    fcntl64 = 221,
-    gettid = 224,
-    readahead = 225,
-    setxattr = 226,
-    lsetxattr = 227,
-    fsetxattr = 228,
-    getxattr = 229,
-    lgetxattr = 230,
-    fgetxattr = 231,
-    listxattr = 232,
-    llistxattr = 233,
-    flistxattr = 234,
-    removexattr = 235,
-    lremovexattr = 236,
-    fremovexattr = 237,
-    tkill = 238,
-    sendfile64 = 239,
-    futex = 240,
-    sched_setaffinity = 241,
-    sched_getaffinity = 242,
-    set_thread_area = 243,
-    get_thread_area = 244,
-    io_setup = 245,
-    io_destroy = 246,
-    io_getevents = 247,
-    io_submit = 248,
-    io_cancel = 249,
-    fadvise64 = 250,
-    exit_group = 252,
-    lookup_dcookie = 253,
-    epoll_create = 254,
-    epoll_ctl = 255,
-    epoll_wait = 256,
-    remap_file_pages = 257,
-    set_tid_address = 258,
-    timer_create = 259,
-    timer_settime, // SYS_timer_create + 1
-    timer_gettime, // SYS_timer_create + 2
-    timer_getoverrun, // SYS_timer_create + 3
-    timer_delete, // SYS_timer_create + 4
-    clock_settime, // SYS_timer_create + 5
-    clock_gettime, // SYS_timer_create + 6
-    clock_getres, // SYS_timer_create + 7
-    clock_nanosleep, // SYS_timer_create + 8
-    statfs64 = 268,
-    fstatfs64 = 269,
-    tgkill = 270,
-    utimes = 271,
-    fadvise64_64 = 272,
-    vserver = 273,
-    mbind = 274,
-    get_mempolicy = 275,
-    set_mempolicy = 276,
-    mq_open = 277,
-    mq_unlink, // SYS_mq_open + 1
-    mq_timedsend, // SYS_mq_open + 2
-    mq_timedreceive, // SYS_mq_open + 3
-    mq_notify, // SYS_mq_open + 4
-    mq_getsetattr, // SYS_mq_open + 5
-    kexec_load = 283,
-    waitid = 284,
-    add_key = 286,
-    request_key = 287,
-    keyctl = 288,
-    ioprio_set = 289,
-    ioprio_get = 290,
-    inotify_init = 291,
-    inotify_add_watch = 292,
-    inotify_rm_watch = 293,
-    migrate_pages = 294,
-    openat = 295,
-    mkdirat = 296,
-    mknodat = 297,
-    fchownat = 298,
-    futimesat = 299,
-    fstatat64 = 300,
-    unlinkat = 301,
-    renameat = 302,
-    linkat = 303,
-    symlinkat = 304,
-    readlinkat = 305,
-    fchmodat = 306,
-    faccessat = 307,
-    pselect6 = 308,
-    ppoll = 309,
-    unshare = 310,
-    set_robust_list = 311,
-    get_robust_list = 312,
-    splice = 313,
-    sync_file_range = 314,
-    tee = 315,
-    vmsplice = 316,
-    move_pages = 317,
-    getcpu = 318,
-    epoll_pwait = 319,
-    utimensat = 320,
-    signalfd = 321,
-    timerfd_create = 322,
-    eventfd = 323,
-    fallocate = 324,
-    timerfd_settime = 325,
-    timerfd_gettime = 326,
-    signalfd4 = 327,
-    eventfd2 = 328,
-    epoll_create1 = 329,
-    dup3 = 330,
-    pipe2 = 331,
-    inotify_init1 = 332,
-    preadv = 333,
-    pwritev = 334,
-    rt_tgsigqueueinfo = 335,
-    perf_event_open = 336,
-    recvmmsg = 337,
-    fanotify_init = 338,
-    fanotify_mark = 339,
-    prlimit64 = 340,
-    name_to_handle_at = 341,
-    open_by_handle_at = 342,
-    clock_adjtime = 343,
-    syncfs = 344,
-    sendmmsg = 345,
-    setns = 346,
-    process_vm_readv = 347,
-    process_vm_writev = 348,
-    kcmp = 349,
-    finit_module = 350,
-    sched_setattr = 351,
-    sched_getattr = 352,
-    renameat2 = 353,
-    seccomp = 354,
-    getrandom = 355,
-    memfd_create = 356,
-    bpf = 357,
-    execveat = 358,
-    socket = 359,
-    socketpair = 360,
-    bind = 361,
-    connect = 362,
-    listen = 363,
-    accept4 = 364,
-    getsockopt = 365,
-    setsockopt = 366,
-    getsockname = 367,
-    getpeername = 368,
-    sendto = 369,
-    sendmsg = 370,
-    recvfrom = 371,
-    recvmsg = 372,
-    shutdown = 373,
-    userfaultfd = 374,
-    membarrier = 375,
-    mlock2 = 376,
-    copy_file_range = 377,
-    preadv2 = 378,
-    pwritev2 = 379,
-    pkey_mprotect = 380,
-    pkey_alloc = 381,
-    pkey_free = 382,
-    statx = 383,
-    arch_prctl = 384,
-    io_pgetevents = 385,
-    rseq = 386,
-    semget = 393,
-    semctl = 394,
-    shmget = 395,
-    shmctl = 396,
-    shmat = 397,
-    shmdt = 398,
-    msgget = 399,
-    msgsnd = 400,
-    msgrcv = 401,
-    msgctl = 402,
-    clock_gettime64 = 403,
-    clock_settime64 = 404,
-    clock_adjtime64 = 405,
-    clock_getres_time64 = 406,
-    clock_nanosleep_time64 = 407,
-    timer_gettime64 = 408,
-    timer_settime64 = 409,
-    timerfd_gettime64 = 410,
-    timerfd_settime64 = 411,
-    utimensat_time64 = 412,
-    pselect6_time64 = 413,
-    ppoll_time64 = 414,
-    io_pgetevents_time64 = 416,
-    recvmmsg_time64 = 417,
-    mq_timedsend_time64 = 418,
-    mq_timedreceive_time64 = 419,
-    semtimedop_time64 = 420,
-    rt_sigtimedwait_time64 = 421,
-    futex_time64 = 422,
-    sched_rr_get_interval_time64 = 423,
-    pidfd_send_signal = 424,
-    io_uring_setup = 425,
-    io_uring_enter = 426,
-    io_uring_register = 427,
-    open_tree = 428,
-    move_mount = 429,
-    fsopen = 430,
-    fsconfig = 431,
-    fsmount = 432,
-    fspick = 433,
-    pidfd_open = 434,
-    clone3 = 435,
-    close_range = 436,
-    openat2 = 437,
-    pidfd_getfd = 438,
-    faccessat2 = 439,
-    process_madvise = 440,
-    epoll_pwait2 = 441,
-    mount_setattr = 442,
-    landlock_create_ruleset = 444,
-    landlock_add_rule = 445,
-    landlock_restrict_self = 446,
-    memfd_secret = 447,
-
-    _,
-};
-
 pub const O = struct {
     pub const CREAT = 0o100;
     pub const EXCL = 0o200;
@@ -668,9 +233,9 @@ pub const msghdr = extern struct {
 pub const msghdr_const = extern struct {
     name: ?*const sockaddr,
     namelen: socklen_t,
-    iov: [*]iovec_const,
+    iov: [*]const iovec_const,
     iovlen: i32,
-    control: ?*anyopaque,
+    control: ?*const anyopaque,
     controllen: socklen_t,
     flags: i32,
 };
@@ -757,7 +322,7 @@ pub const REG = struct {
 
 pub const ucontext_t = extern struct {
     flags: usize,
-    link: *ucontext_t,
+    link: ?*ucontext_t,
     stack: stack_t,
     mcontext: mcontext_t,
     sigmask: sigset_t,
diff --git a/lib/std/os/linux/io_uring.zig b/lib/std/os/linux/io_uring.zig
index fc32508cf5..144927771f 100644
--- a/lib/std/os/linux/io_uring.zig
+++ b/lib/std/os/linux/io_uring.zig
@@ -7,10 +7,6 @@ const os = std.os;
 const linux = os.linux;
 const testing = std.testing;
 
-const io_uring_params = linux.io_uring_params;
-const io_uring_sqe = linux.io_uring_sqe;
-const io_uring_cqe = linux.io_uring_cqe;
-
 pub const IO_Uring = struct {
     fd: os.fd_t = -1,
     sq: SubmissionQueue,
@@ -18,24 +14,24 @@ pub const IO_Uring = struct {
     flags: u32,
     features: u32,
 
-    /// A friendly way to setup an io_uring, with default io_uring_params.
+    /// A friendly way to setup an io_uring, with default linux.io_uring_params.
     /// `entries` must be a power of two between 1 and 4096, although the kernel will make the final
     /// call on how many entries the submission and completion queues will ultimately have,
     /// see https://github.com/torvalds/linux/blob/v5.8/fs/io_uring.c#L8027-L8050.
     /// Matches the interface of io_uring_queue_init() in liburing.
     pub fn init(entries: u13, flags: u32) !IO_Uring {
-        var params = mem.zeroInit(io_uring_params, .{
+        var params = mem.zeroInit(linux.io_uring_params, .{
             .flags = flags,
             .sq_thread_idle = 1000,
         });
         return try IO_Uring.init_params(entries, &params);
     }
 
-    /// A powerful way to setup an io_uring, if you want to tweak io_uring_params such as submission
+    /// A powerful way to setup an io_uring, if you want to tweak linux.io_uring_params such as submission
     /// queue thread cpu affinity or thread idle timeout (the kernel and our default is 1 second).
     /// `params` is passed by reference because the kernel needs to modify the parameters.
     /// Matches the interface of io_uring_queue_init_params() in liburing.
-    pub fn init_params(entries: u13, p: *io_uring_params) !IO_Uring {
+    pub fn init_params(entries: u13, p: *linux.io_uring_params) !IO_Uring {
         if (entries == 0) return error.EntriesZero;
         if (!std.math.isPowerOfTwo(entries)) return error.EntriesNotPowerOfTwo;
 
@@ -53,7 +49,7 @@ pub const IO_Uring = struct {
             .FAULT => return error.ParamsOutsideAccessibleAddressSpace,
             // The resv array contains non-zero data, p.flags contains an unsupported flag,
             // entries out of bounds, IORING_SETUP_SQ_AFF was specified without IORING_SETUP_SQPOLL,
-            // or IORING_SETUP_CQSIZE was specified but io_uring_params.cq_entries was invalid:
+            // or IORING_SETUP_CQSIZE was specified but linux.io_uring_params.cq_entries was invalid:
             .INVAL => return error.ArgumentsInvalid,
             .MFILE => return error.ProcessFdQuotaExceeded,
             .NFILE => return error.SystemFdQuotaExceeded,
@@ -135,7 +131,7 @@ pub const IO_Uring = struct {
     /// and the null return in liburing is more a C idiom than anything else, for lack of a better
     /// alternative. In Zig, we have first-class error handling... so let's use it.
     /// Matches the implementation of io_uring_get_sqe() in liburing.
-    pub fn get_sqe(self: *IO_Uring) !*io_uring_sqe {
+    pub fn get_sqe(self: *IO_Uring) !*linux.io_uring_sqe {
         const head = @atomicLoad(u32, self.sq.head, .Acquire);
         // Remember that these head and tail offsets wrap around every four billion operations.
         // We must therefore use wrapping addition and subtraction to avoid a runtime crash.
@@ -268,7 +264,7 @@ pub const IO_Uring = struct {
     /// Faster, because we can now amortize the atomic store release to `cq.head` across the batch.
     /// See https://github.com/axboe/liburing/issues/103#issuecomment-686665007.
     /// Matches the implementation of io_uring_peek_batch_cqe() in liburing, but supports waiting.
-    pub fn copy_cqes(self: *IO_Uring, cqes: []io_uring_cqe, wait_nr: u32) !u32 {
+    pub fn copy_cqes(self: *IO_Uring, cqes: []linux.io_uring_cqe, wait_nr: u32) !u32 {
         const count = self.copy_cqes_ready(cqes, wait_nr);
         if (count > 0) return count;
         if (self.cq_ring_needs_flush() or wait_nr > 0) {
@@ -278,7 +274,7 @@ pub const IO_Uring = struct {
         return 0;
     }
 
-    fn copy_cqes_ready(self: *IO_Uring, cqes: []io_uring_cqe, wait_nr: u32) u32 {
+    fn copy_cqes_ready(self: *IO_Uring, cqes: []linux.io_uring_cqe, wait_nr: u32) u32 {
         _ = wait_nr;
         const ready = self.cq_ready();
         const count = std.math.min(cqes.len, ready);
@@ -298,8 +294,8 @@ pub const IO_Uring = struct {
 
     /// Returns a copy of an I/O completion, waiting for it if necessary, and advancing the CQ ring.
     /// A convenience method for `copy_cqes()` for when you don't need to batch or peek.
-    pub fn copy_cqe(ring: *IO_Uring) !io_uring_cqe {
-        var cqes: [1]io_uring_cqe = undefined;
+    pub fn copy_cqe(ring: *IO_Uring) !linux.io_uring_cqe {
+        var cqes: [1]linux.io_uring_cqe = undefined;
         while (true) {
             const count = try ring.copy_cqes(&cqes, 1);
             if (count > 0) return cqes[0];
@@ -316,7 +312,7 @@ pub const IO_Uring = struct {
     /// Must be called exactly once after a zero-copy CQE has been processed by your application.
     /// Not idempotent, calling more than once will result in other CQEs being lost.
     /// Matches the implementation of cqe_seen() in liburing.
-    pub fn cqe_seen(self: *IO_Uring, cqe: *io_uring_cqe) void {
+    pub fn cqe_seen(self: *IO_Uring, cqe: *linux.io_uring_cqe) void {
         _ = cqe;
         self.cq_advance(1);
     }
@@ -339,7 +335,7 @@ pub const IO_Uring = struct {
     /// apply to the write, since the fsync may complete before the write is issued to the disk.
     /// You should preferably use `link_with_next_sqe()` on a write's SQE to link it with an fsync,
     /// or else insert a full write barrier using `drain_previous_sqes()` when queueing an fsync.
-    pub fn fsync(self: *IO_Uring, user_data: u64, fd: os.fd_t, flags: u32) !*io_uring_sqe {
+    pub fn fsync(self: *IO_Uring, user_data: u64, fd: os.fd_t, flags: u32) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_fsync(sqe, fd, flags);
         sqe.user_data = user_data;
@@ -351,24 +347,53 @@ pub const IO_Uring = struct {
     /// A no-op is more useful than may appear at first glance.
     /// For example, you could call `drain_previous_sqes()` on the returned SQE, to use the no-op to
     /// know when the ring is idle before acting on a kill signal.
-    pub fn nop(self: *IO_Uring, user_data: u64) !*io_uring_sqe {
+    pub fn nop(self: *IO_Uring, user_data: u64) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_nop(sqe);
         sqe.user_data = user_data;
         return sqe;
     }
 
-    /// Queues (but does not submit) an SQE to perform a `read(2)`.
+    /// Used to select how the read should be handled.
+    pub const ReadBuffer = union(enum) {
+        /// io_uring will read directly into this buffer
+        buffer: []u8,
+
+        /// io_uring will read directly into these buffers using readv.
+        iovecs: []const os.iovec,
+
+        /// io_uring will select a buffer that has previously been provided with `provide_buffers`.
+        /// The buffer group reference by `group_id` must contain at least one buffer for the read to work.
+        /// `len` controls the number of bytes to read into the selected buffer.
+        buffer_selection: struct {
+            group_id: u16,
+            len: usize,
+        },
+    };
+
+    /// Queues (but does not submit) an SQE to perform a `read(2)` or `preadv` depending on the buffer type.
+    /// * Reading into a `ReadBuffer.buffer` uses `read(2)`
+    /// * Reading into a `ReadBuffer.iovecs` uses `preadv(2)`
+    ///   If you want to do a `preadv2()` then set `rw_flags` on the returned SQE. See https://linux.die.net/man/2/preadv.
+    ///
     /// Returns a pointer to the SQE.
     pub fn read(
         self: *IO_Uring,
         user_data: u64,
         fd: os.fd_t,
-        buffer: []u8,
+        buffer: ReadBuffer,
         offset: u64,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
-        io_uring_prep_read(sqe, fd, buffer, offset);
+        switch (buffer) {
+            .buffer => |slice| io_uring_prep_read(sqe, fd, slice, offset),
+            .iovecs => |vecs| io_uring_prep_readv(sqe, fd, vecs, offset),
+            .buffer_selection => |selection| {
+                io_uring_prep_rw(.READ, sqe, fd, 0, selection.len, offset);
+                sqe.flags |= linux.IOSQE_BUFFER_SELECT;
+                sqe.buf_index = selection.group_id;
+            },
+        }
         sqe.user_data = user_data;
         return sqe;
     }
@@ -381,30 +406,13 @@ pub const IO_Uring = struct {
         fd: os.fd_t,
         buffer: []const u8,
         offset: u64,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_write(sqe, fd, buffer, offset);
         sqe.user_data = user_data;
         return sqe;
     }
 
-    /// Queues (but does not submit) an SQE to perform a `preadv()`.
-    /// Returns a pointer to the SQE so that you can further modify the SQE for advanced use cases.
-    /// For example, if you want to do a `preadv2()` then set `rw_flags` on the returned SQE.
-    /// See https://linux.die.net/man/2/preadv.
-    pub fn readv(
-        self: *IO_Uring,
-        user_data: u64,
-        fd: os.fd_t,
-        iovecs: []const os.iovec,
-        offset: u64,
-    ) !*io_uring_sqe {
-        const sqe = try self.get_sqe();
-        io_uring_prep_readv(sqe, fd, iovecs, offset);
-        sqe.user_data = user_data;
-        return sqe;
-    }
-
     /// Queues (but does not submit) an SQE to perform a IORING_OP_READ_FIXED.
     /// The `buffer` provided must be registered with the kernel by calling `register_buffers` first.
     /// The `buffer_index` must be the same as its index in the array provided to `register_buffers`.
@@ -417,7 +425,7 @@ pub const IO_Uring = struct {
         buffer: *os.iovec,
         offset: u64,
         buffer_index: u16,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_read_fixed(sqe, fd, buffer, offset, buffer_index);
         sqe.user_data = user_data;
@@ -434,7 +442,7 @@ pub const IO_Uring = struct {
         fd: os.fd_t,
         iovecs: []const os.iovec_const,
         offset: u64,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_writev(sqe, fd, iovecs, offset);
         sqe.user_data = user_data;
@@ -453,7 +461,7 @@ pub const IO_Uring = struct {
         buffer: *os.iovec,
         offset: u64,
         buffer_index: u16,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_write_fixed(sqe, fd, buffer, offset, buffer_index);
         sqe.user_data = user_data;
@@ -469,7 +477,7 @@ pub const IO_Uring = struct {
         addr: *os.sockaddr,
         addrlen: *os.socklen_t,
         flags: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_accept(sqe, fd, addr, addrlen, flags);
         sqe.user_data = user_data;
@@ -484,7 +492,7 @@ pub const IO_Uring = struct {
         fd: os.fd_t,
         addr: *const os.sockaddr,
         addrlen: os.socklen_t,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_connect(sqe, fd, addr, addrlen);
         sqe.user_data = user_data;
@@ -500,24 +508,46 @@ pub const IO_Uring = struct {
         fd: os.fd_t,
         op: u32,
         ev: ?*linux.epoll_event,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_epoll_ctl(sqe, epfd, fd, op, ev);
         sqe.user_data = user_data;
         return sqe;
     }
 
+    /// Used to select how the recv call should be handled.
+    pub const RecvBuffer = union(enum) {
+        /// io_uring will recv directly into this buffer
+        buffer: []u8,
+
+        /// io_uring will select a buffer that has previously been provided with `provide_buffers`.
+        /// The buffer group referenced by `group_id` must contain at least one buffer for the recv call to work.
+        /// `len` controls the number of bytes to read into the selected buffer.
+        buffer_selection: struct {
+            group_id: u16,
+            len: usize,
+        },
+    };
+
     /// Queues (but does not submit) an SQE to perform a `recv(2)`.
     /// Returns a pointer to the SQE.
     pub fn recv(
         self: *IO_Uring,
         user_data: u64,
         fd: os.fd_t,
-        buffer: []u8,
+        buffer: RecvBuffer,
         flags: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
-        io_uring_prep_recv(sqe, fd, buffer, flags);
+        switch (buffer) {
+            .buffer => |slice| io_uring_prep_recv(sqe, fd, slice, flags),
+            .buffer_selection => |selection| {
+                io_uring_prep_rw(.RECV, sqe, fd, 0, selection.len, 0);
+                sqe.rw_flags = flags;
+                sqe.flags |= linux.IOSQE_BUFFER_SELECT;
+                sqe.buf_index = selection.group_id;
+            },
+        }
         sqe.user_data = user_data;
         return sqe;
     }
@@ -530,13 +560,43 @@ pub const IO_Uring = struct {
         fd: os.fd_t,
         buffer: []const u8,
         flags: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_send(sqe, fd, buffer, flags);
         sqe.user_data = user_data;
         return sqe;
     }
 
+    /// Queues (but does not submit) an SQE to perform a `recvmsg(2)`.
+    /// Returns a pointer to the SQE.
+    pub fn recvmsg(
+        self: *IO_Uring,
+        user_data: u64,
+        fd: os.fd_t,
+        msg: *os.msghdr,
+        flags: u32,
+    ) !*linux.io_uring_sqe {
+        const sqe = try self.get_sqe();
+        io_uring_prep_recvmsg(sqe, fd, msg, flags);
+        sqe.user_data = user_data;
+        return sqe;
+    }
+
+    /// Queues (but does not submit) an SQE to perform a `sendmsg(2)`.
+    /// Returns a pointer to the SQE.
+    pub fn sendmsg(
+        self: *IO_Uring,
+        user_data: u64,
+        fd: os.fd_t,
+        msg: *const os.msghdr_const,
+        flags: u32,
+    ) !*linux.io_uring_sqe {
+        const sqe = try self.get_sqe();
+        io_uring_prep_sendmsg(sqe, fd, msg, flags);
+        sqe.user_data = user_data;
+        return sqe;
+    }
+
     /// Queues (but does not submit) an SQE to perform an `openat(2)`.
     /// Returns a pointer to the SQE.
     pub fn openat(
@@ -546,7 +606,7 @@ pub const IO_Uring = struct {
         path: [*:0]const u8,
         flags: u32,
         mode: os.mode_t,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_openat(sqe, fd, path, flags, mode);
         sqe.user_data = user_data;
@@ -555,7 +615,7 @@ pub const IO_Uring = struct {
 
     /// Queues (but does not submit) an SQE to perform a `close(2)`.
     /// Returns a pointer to the SQE.
-    pub fn close(self: *IO_Uring, user_data: u64, fd: os.fd_t) !*io_uring_sqe {
+    pub fn close(self: *IO_Uring, user_data: u64, fd: os.fd_t) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_close(sqe, fd);
         sqe.user_data = user_data;
@@ -581,7 +641,7 @@ pub const IO_Uring = struct {
         ts: *const os.linux.kernel_timespec,
         count: u32,
         flags: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_timeout(sqe, ts, count, flags);
         sqe.user_data = user_data;
@@ -601,7 +661,7 @@ pub const IO_Uring = struct {
         user_data: u64,
         timeout_user_data: u64,
         flags: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_timeout_remove(sqe, timeout_user_data, flags);
         sqe.user_data = user_data;
@@ -629,7 +689,7 @@ pub const IO_Uring = struct {
         user_data: u64,
         ts: *const os.linux.kernel_timespec,
         flags: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_link_timeout(sqe, ts, flags);
         sqe.user_data = user_data;
@@ -643,7 +703,7 @@ pub const IO_Uring = struct {
         user_data: u64,
         fd: os.fd_t,
         poll_mask: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_poll_add(sqe, fd, poll_mask);
         sqe.user_data = user_data;
@@ -656,7 +716,7 @@ pub const IO_Uring = struct {
         self: *IO_Uring,
         user_data: u64,
         target_user_data: u64,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_poll_remove(sqe, target_user_data);
         sqe.user_data = user_data;
@@ -672,7 +732,7 @@ pub const IO_Uring = struct {
         new_user_data: u64,
         poll_mask: u32,
         flags: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_poll_update(sqe, old_user_data, new_user_data, poll_mask, flags);
         sqe.user_data = user_data;
@@ -688,7 +748,7 @@ pub const IO_Uring = struct {
         mode: i32,
         offset: u64,
         len: u64,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_fallocate(sqe, fd, mode, offset, len);
         sqe.user_data = user_data;
@@ -705,7 +765,7 @@ pub const IO_Uring = struct {
         flags: u32,
         mask: u32,
         buf: *linux.Statx,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_statx(sqe, fd, path, flags, mask, buf);
         sqe.user_data = user_data;
@@ -725,7 +785,7 @@ pub const IO_Uring = struct {
         user_data: u64,
         cancel_user_data: u64,
         flags: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_cancel(sqe, cancel_user_data, flags);
         sqe.user_data = user_data;
@@ -741,7 +801,7 @@ pub const IO_Uring = struct {
         user_data: u64,
         sockfd: os.socket_t,
         how: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_shutdown(sqe, sockfd, how);
         sqe.user_data = user_data;
@@ -758,7 +818,7 @@ pub const IO_Uring = struct {
         new_dir_fd: os.fd_t,
         new_path: [*:0]const u8,
         flags: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_renameat(sqe, old_dir_fd, old_path, new_dir_fd, new_path, flags);
         sqe.user_data = user_data;
@@ -773,7 +833,7 @@ pub const IO_Uring = struct {
         dir_fd: os.fd_t,
         path: [*:0]const u8,
         flags: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_unlinkat(sqe, dir_fd, path, flags);
         sqe.user_data = user_data;
@@ -788,7 +848,7 @@ pub const IO_Uring = struct {
         dir_fd: os.fd_t,
         path: [*:0]const u8,
         mode: os.mode_t,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_mkdirat(sqe, dir_fd, path, mode);
         sqe.user_data = user_data;
@@ -803,7 +863,7 @@ pub const IO_Uring = struct {
         target: [*:0]const u8,
         new_dir_fd: os.fd_t,
         link_path: [*:0]const u8,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_symlinkat(sqe, target, new_dir_fd, link_path);
         sqe.user_data = user_data;
@@ -820,13 +880,48 @@ pub const IO_Uring = struct {
         new_dir_fd: os.fd_t,
         new_path: [*:0]const u8,
         flags: u32,
-    ) !*io_uring_sqe {
+    ) !*linux.io_uring_sqe {
         const sqe = try self.get_sqe();
         io_uring_prep_linkat(sqe, old_dir_fd, old_path, new_dir_fd, new_path, flags);
         sqe.user_data = user_data;
         return sqe;
     }
 
+    /// Queues (but does not submit) an SQE to provide a group of buffers used for commands that read/receive data.
+    /// Returns a pointer to the SQE.
+    ///
+    /// Provided buffers can be used in `read`, `recv` or `recvmsg` commands via .buffer_selection.
+    ///
+    /// The kernel expects a contiguous block of memory of size (buffers_count * buffer_size).
+    pub fn provide_buffers(
+        self: *IO_Uring,
+        user_data: u64,
+        buffers: [*]u8,
+        buffers_count: usize,
+        buffer_size: usize,
+        group_id: usize,
+        buffer_id: usize,
+    ) !*linux.io_uring_sqe {
+        const sqe = try self.get_sqe();
+        io_uring_prep_provide_buffers(sqe, buffers, buffers_count, buffer_size, group_id, buffer_id);
+        sqe.user_data = user_data;
+        return sqe;
+    }
+
+    /// Queues (but does not submit) an SQE to remove a group of provided buffers.
+    /// Returns a pointer to the SQE.
+    pub fn remove_buffers(
+        self: *IO_Uring,
+        user_data: u64,
+        buffers_count: usize,
+        group_id: usize,
+    ) !*linux.io_uring_sqe {
+        const sqe = try self.get_sqe();
+        io_uring_prep_remove_buffers(sqe, buffers_count, group_id);
+        sqe.user_data = user_data;
+        return sqe;
+    }
+
     /// Registers an array of file descriptors.
     /// Every time a file descriptor is put in an SQE and submitted to the kernel, the kernel must
     /// retrieve a reference to the file, and once I/O has completed the file reference must be
@@ -984,7 +1079,7 @@ pub const SubmissionQueue = struct {
     flags: *u32,
     dropped: *u32,
     array: []u32,
-    sqes: []io_uring_sqe,
+    sqes: []linux.io_uring_sqe,
     mmap: []align(mem.page_size) u8,
     mmap_sqes: []align(mem.page_size) u8,
 
@@ -995,12 +1090,12 @@ pub const SubmissionQueue = struct {
     sqe_head: u32 = 0,
     sqe_tail: u32 = 0,
 
-    pub fn init(fd: os.fd_t, p: io_uring_params) !SubmissionQueue {
+    pub fn init(fd: os.fd_t, p: linux.io_uring_params) !SubmissionQueue {
         assert(fd >= 0);
         assert((p.features & linux.IORING_FEAT_SINGLE_MMAP) != 0);
         const size = std.math.max(
             p.sq_off.array + p.sq_entries * @sizeOf(u32),
-            p.cq_off.cqes + p.cq_entries * @sizeOf(io_uring_cqe),
+            p.cq_off.cqes + p.cq_entries * @sizeOf(linux.io_uring_cqe),
         );
         const mmap = try os.mmap(
             null,
@@ -1014,8 +1109,8 @@ pub const SubmissionQueue = struct {
         assert(mmap.len == size);
 
         // The motivation for the `sqes` and `array` indirection is to make it possible for the
-        // application to preallocate static io_uring_sqe entries and then replay them when needed.
-        const size_sqes = p.sq_entries * @sizeOf(io_uring_sqe);
+        // application to preallocate static linux.io_uring_sqe entries and then replay them when needed.
+        const size_sqes = p.sq_entries * @sizeOf(linux.io_uring_sqe);
         const mmap_sqes = try os.mmap(
             null,
             size_sqes,
@@ -1028,7 +1123,7 @@ pub const SubmissionQueue = struct {
         assert(mmap_sqes.len == size_sqes);
 
         const array = @ptrCast([*]u32, @alignCast(@alignOf(u32), &mmap[p.sq_off.array]));
-        const sqes = @ptrCast([*]io_uring_sqe, @alignCast(@alignOf(io_uring_sqe), &mmap_sqes[0]));
+        const sqes = @ptrCast([*]linux.io_uring_sqe, @alignCast(@alignOf(linux.io_uring_sqe), &mmap_sqes[0]));
         // We expect the kernel copies p.sq_entries to the u32 pointed to by p.sq_off.ring_entries,
         // see https://github.com/torvalds/linux/blob/v5.8/fs/io_uring.c#L7843-L7844.
         assert(
@@ -1059,15 +1154,15 @@ pub const CompletionQueue = struct {
     tail: *u32,
     mask: u32,
     overflow: *u32,
-    cqes: []io_uring_cqe,
+    cqes: []linux.io_uring_cqe,
 
-    pub fn init(fd: os.fd_t, p: io_uring_params, sq: SubmissionQueue) !CompletionQueue {
+    pub fn init(fd: os.fd_t, p: linux.io_uring_params, sq: SubmissionQueue) !CompletionQueue {
         assert(fd >= 0);
         assert((p.features & linux.IORING_FEAT_SINGLE_MMAP) != 0);
         const mmap = sq.mmap;
         const cqes = @ptrCast(
-            [*]io_uring_cqe,
-            @alignCast(@alignOf(io_uring_cqe), &mmap[p.cq_off.cqes]),
+            [*]linux.io_uring_cqe,
+            @alignCast(@alignOf(linux.io_uring_cqe), &mmap[p.cq_off.cqes]),
         );
         assert(p.cq_entries ==
             @ptrCast(*u32, @alignCast(@alignOf(u32), &mmap[p.cq_off.ring_entries])).*);
@@ -1087,7 +1182,7 @@ pub const CompletionQueue = struct {
     }
 };
 
-pub fn io_uring_prep_nop(sqe: *io_uring_sqe) void {
+pub fn io_uring_prep_nop(sqe: *linux.io_uring_sqe) void {
     sqe.* = .{
         .opcode = .NOP,
         .flags = 0,
@@ -1105,7 +1200,7 @@ pub fn io_uring_prep_nop(sqe: *io_uring_sqe) void {
     };
 }
 
-pub fn io_uring_prep_fsync(sqe: *io_uring_sqe, fd: os.fd_t, flags: u32) void {
+pub fn io_uring_prep_fsync(sqe: *linux.io_uring_sqe, fd: os.fd_t, flags: u32) void {
     sqe.* = .{
         .opcode = .FSYNC,
         .flags = 0,
@@ -1125,7 +1220,7 @@ pub fn io_uring_prep_fsync(sqe: *io_uring_sqe, fd: os.fd_t, flags: u32) void {
 
 pub fn io_uring_prep_rw(
     op: linux.IORING_OP,
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     fd: os.fd_t,
     addr: u64,
     len: usize,
@@ -1148,16 +1243,16 @@ pub fn io_uring_prep_rw(
     };
 }
 
-pub fn io_uring_prep_read(sqe: *io_uring_sqe, fd: os.fd_t, buffer: []u8, offset: u64) void {
+pub fn io_uring_prep_read(sqe: *linux.io_uring_sqe, fd: os.fd_t, buffer: []u8, offset: u64) void {
     io_uring_prep_rw(.READ, sqe, fd, @ptrToInt(buffer.ptr), buffer.len, offset);
 }
 
-pub fn io_uring_prep_write(sqe: *io_uring_sqe, fd: os.fd_t, buffer: []const u8, offset: u64) void {
+pub fn io_uring_prep_write(sqe: *linux.io_uring_sqe, fd: os.fd_t, buffer: []const u8, offset: u64) void {
     io_uring_prep_rw(.WRITE, sqe, fd, @ptrToInt(buffer.ptr), buffer.len, offset);
 }
 
 pub fn io_uring_prep_readv(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     fd: os.fd_t,
     iovecs: []const os.iovec,
     offset: u64,
@@ -1166,7 +1261,7 @@ pub fn io_uring_prep_readv(
 }
 
 pub fn io_uring_prep_writev(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     fd: os.fd_t,
     iovecs: []const os.iovec_const,
     offset: u64,
@@ -1174,12 +1269,12 @@ pub fn io_uring_prep_writev(
     io_uring_prep_rw(.WRITEV, sqe, fd, @ptrToInt(iovecs.ptr), iovecs.len, offset);
 }
 
-pub fn io_uring_prep_read_fixed(sqe: *io_uring_sqe, fd: os.fd_t, buffer: *os.iovec, offset: u64, buffer_index: u16) void {
+pub fn io_uring_prep_read_fixed(sqe: *linux.io_uring_sqe, fd: os.fd_t, buffer: *os.iovec, offset: u64, buffer_index: u16) void {
     io_uring_prep_rw(.READ_FIXED, sqe, fd, @ptrToInt(buffer.iov_base), buffer.iov_len, offset);
     sqe.buf_index = buffer_index;
 }
 
-pub fn io_uring_prep_write_fixed(sqe: *io_uring_sqe, fd: os.fd_t, buffer: *os.iovec, offset: u64, buffer_index: u16) void {
+pub fn io_uring_prep_write_fixed(sqe: *linux.io_uring_sqe, fd: os.fd_t, buffer: *os.iovec, offset: u64, buffer_index: u16) void {
     io_uring_prep_rw(.WRITE_FIXED, sqe, fd, @ptrToInt(buffer.iov_base), buffer.iov_len, offset);
     sqe.buf_index = buffer_index;
 }
@@ -1195,7 +1290,7 @@ pub inline fn __io_uring_prep_poll_mask(poll_mask: u32) u32 {
 }
 
 pub fn io_uring_prep_accept(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     fd: os.fd_t,
     addr: *os.sockaddr,
     addrlen: *os.socklen_t,
@@ -1208,7 +1303,7 @@ pub fn io_uring_prep_accept(
 }
 
 pub fn io_uring_prep_connect(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     fd: os.fd_t,
     addr: *const os.sockaddr,
     addrlen: os.socklen_t,
@@ -1218,7 +1313,7 @@ pub fn io_uring_prep_connect(
 }
 
 pub fn io_uring_prep_epoll_ctl(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     epfd: os.fd_t,
     fd: os.fd_t,
     op: u32,
@@ -1227,18 +1322,38 @@ pub fn io_uring_prep_epoll_ctl(
     io_uring_prep_rw(.EPOLL_CTL, sqe, epfd, @ptrToInt(ev), op, @intCast(u64, fd));
 }
 
-pub fn io_uring_prep_recv(sqe: *io_uring_sqe, fd: os.fd_t, buffer: []u8, flags: u32) void {
+pub fn io_uring_prep_recv(sqe: *linux.io_uring_sqe, fd: os.fd_t, buffer: []u8, flags: u32) void {
     io_uring_prep_rw(.RECV, sqe, fd, @ptrToInt(buffer.ptr), buffer.len, 0);
     sqe.rw_flags = flags;
 }
 
-pub fn io_uring_prep_send(sqe: *io_uring_sqe, fd: os.fd_t, buffer: []const u8, flags: u32) void {
+pub fn io_uring_prep_send(sqe: *linux.io_uring_sqe, fd: os.fd_t, buffer: []const u8, flags: u32) void {
     io_uring_prep_rw(.SEND, sqe, fd, @ptrToInt(buffer.ptr), buffer.len, 0);
     sqe.rw_flags = flags;
 }
 
+pub fn io_uring_prep_recvmsg(
+    sqe: *linux.io_uring_sqe,
+    fd: os.fd_t,
+    msg: *os.msghdr,
+    flags: u32,
+) void {
+    linux.io_uring_prep_rw(.RECVMSG, sqe, fd, @ptrToInt(msg), 1, 0);
+    sqe.rw_flags = flags;
+}
+
+pub fn io_uring_prep_sendmsg(
+    sqe: *linux.io_uring_sqe,
+    fd: os.fd_t,
+    msg: *const os.msghdr_const,
+    flags: u32,
+) void {
+    linux.io_uring_prep_rw(.SENDMSG, sqe, fd, @ptrToInt(msg), 1, 0);
+    sqe.rw_flags = flags;
+}
+
 pub fn io_uring_prep_openat(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     fd: os.fd_t,
     path: [*:0]const u8,
     flags: u32,
@@ -1248,7 +1363,7 @@ pub fn io_uring_prep_openat(
     sqe.rw_flags = flags;
 }
 
-pub fn io_uring_prep_close(sqe: *io_uring_sqe, fd: os.fd_t) void {
+pub fn io_uring_prep_close(sqe: *linux.io_uring_sqe, fd: os.fd_t) void {
     sqe.* = .{
         .opcode = .CLOSE,
         .flags = 0,
@@ -1267,7 +1382,7 @@ pub fn io_uring_prep_close(sqe: *io_uring_sqe, fd: os.fd_t) void {
 }
 
 pub fn io_uring_prep_timeout(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     ts: *const os.linux.kernel_timespec,
     count: u32,
     flags: u32,
@@ -1276,7 +1391,7 @@ pub fn io_uring_prep_timeout(
     sqe.rw_flags = flags;
 }
 
-pub fn io_uring_prep_timeout_remove(sqe: *io_uring_sqe, timeout_user_data: u64, flags: u32) void {
+pub fn io_uring_prep_timeout_remove(sqe: *linux.io_uring_sqe, timeout_user_data: u64, flags: u32) void {
     sqe.* = .{
         .opcode = .TIMEOUT_REMOVE,
         .flags = 0,
@@ -1295,7 +1410,7 @@ pub fn io_uring_prep_timeout_remove(sqe: *io_uring_sqe, timeout_user_data: u64,
 }
 
 pub fn io_uring_prep_link_timeout(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     ts: *const os.linux.kernel_timespec,
     flags: u32,
 ) void {
@@ -1304,7 +1419,7 @@ pub fn io_uring_prep_link_timeout(
 }
 
 pub fn io_uring_prep_poll_add(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     fd: os.fd_t,
     poll_mask: u32,
 ) void {
@@ -1313,14 +1428,14 @@ pub fn io_uring_prep_poll_add(
 }
 
 pub fn io_uring_prep_poll_remove(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     target_user_data: u64,
 ) void {
     io_uring_prep_rw(.POLL_REMOVE, sqe, -1, target_user_data, 0, 0);
 }
 
 pub fn io_uring_prep_poll_update(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     old_user_data: u64,
     new_user_data: u64,
     poll_mask: u32,
@@ -1331,7 +1446,7 @@ pub fn io_uring_prep_poll_update(
 }
 
 pub fn io_uring_prep_fallocate(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     fd: os.fd_t,
     mode: i32,
     offset: u64,
@@ -1355,7 +1470,7 @@ pub fn io_uring_prep_fallocate(
 }
 
 pub fn io_uring_prep_statx(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     fd: os.fd_t,
     path: [*:0]const u8,
     flags: u32,
@@ -1367,7 +1482,7 @@ pub fn io_uring_prep_statx(
 }
 
 pub fn io_uring_prep_cancel(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     cancel_user_data: u64,
     flags: u32,
 ) void {
@@ -1376,7 +1491,7 @@ pub fn io_uring_prep_cancel(
 }
 
 pub fn io_uring_prep_shutdown(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     sockfd: os.socket_t,
     how: u32,
 ) void {
@@ -1384,7 +1499,7 @@ pub fn io_uring_prep_shutdown(
 }
 
 pub fn io_uring_prep_renameat(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     old_dir_fd: os.fd_t,
     old_path: [*:0]const u8,
     new_dir_fd: os.fd_t,
@@ -1404,7 +1519,7 @@ pub fn io_uring_prep_renameat(
 }
 
 pub fn io_uring_prep_unlinkat(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     dir_fd: os.fd_t,
     path: [*:0]const u8,
     flags: u32,
@@ -1414,7 +1529,7 @@ pub fn io_uring_prep_unlinkat(
 }
 
 pub fn io_uring_prep_mkdirat(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     dir_fd: os.fd_t,
     path: [*:0]const u8,
     mode: os.mode_t,
@@ -1423,7 +1538,7 @@ pub fn io_uring_prep_mkdirat(
 }
 
 pub fn io_uring_prep_symlinkat(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     target: [*:0]const u8,
     new_dir_fd: os.fd_t,
     link_path: [*:0]const u8,
@@ -1439,7 +1554,7 @@ pub fn io_uring_prep_symlinkat(
 }
 
 pub fn io_uring_prep_linkat(
-    sqe: *io_uring_sqe,
+    sqe: *linux.io_uring_sqe,
     old_dir_fd: os.fd_t,
     old_path: [*:0]const u8,
     new_dir_fd: os.fd_t,
@@ -1458,12 +1573,34 @@ pub fn io_uring_prep_linkat(
     sqe.rw_flags = flags;
 }
 
+pub fn io_uring_prep_provide_buffers(
+    sqe: *linux.io_uring_sqe,
+    buffers: [*]u8,
+    num: usize,
+    buffer_len: usize,
+    group_id: usize,
+    buffer_id: usize,
+) void {
+    const ptr = @ptrToInt(buffers);
+    io_uring_prep_rw(.PROVIDE_BUFFERS, sqe, @intCast(i32, num), ptr, buffer_len, buffer_id);
+    sqe.buf_index = @intCast(u16, group_id);
+}
+
+pub fn io_uring_prep_remove_buffers(
+    sqe: *linux.io_uring_sqe,
+    num: usize,
+    group_id: usize,
+) void {
+    io_uring_prep_rw(.REMOVE_BUFFERS, sqe, @intCast(i32, num), 0, 0, 0);
+    sqe.buf_index = @intCast(u16, group_id);
+}
+
 test "structs/offsets/entries" {
     if (builtin.os.tag != .linux) return error.SkipZigTest;
 
-    try testing.expectEqual(@as(usize, 120), @sizeOf(io_uring_params));
-    try testing.expectEqual(@as(usize, 64), @sizeOf(io_uring_sqe));
-    try testing.expectEqual(@as(usize, 16), @sizeOf(io_uring_cqe));
+    try testing.expectEqual(@as(usize, 120), @sizeOf(linux.io_uring_params));
+    try testing.expectEqual(@as(usize, 64), @sizeOf(linux.io_uring_sqe));
+    try testing.expectEqual(@as(usize, 16), @sizeOf(linux.io_uring_cqe));
 
     try testing.expectEqual(0, linux.IORING_OFF_SQ_RING);
     try testing.expectEqual(0x8000000, linux.IORING_OFF_CQ_RING);
@@ -1487,7 +1624,7 @@ test "nop" {
     }
 
     const sqe = try ring.nop(0xaaaaaaaa);
-    try testing.expectEqual(io_uring_sqe{
+    try testing.expectEqual(linux.io_uring_sqe{
         .opcode = .NOP,
         .flags = 0,
         .ioprio = 0,
@@ -1517,7 +1654,7 @@ test "nop" {
     try testing.expectEqual(@as(u32, 0), ring.cq.head.*);
     try testing.expectEqual(@as(u32, 0), ring.sq_ready());
 
-    try testing.expectEqual(io_uring_cqe{
+    try testing.expectEqual(linux.io_uring_cqe{
         .user_data = 0xaaaaaaaa,
         .res = 0,
         .flags = 0,
@@ -1528,7 +1665,7 @@ test "nop" {
     const sqe_barrier = try ring.nop(0xbbbbbbbb);
     sqe_barrier.flags |= linux.IOSQE_IO_DRAIN;
     try testing.expectEqual(@as(u32, 1), try ring.submit());
-    try testing.expectEqual(io_uring_cqe{
+    try testing.expectEqual(linux.io_uring_cqe{
         .user_data = 0xbbbbbbbb,
         .res = 0,
         .flags = 0,
@@ -1565,7 +1702,7 @@ test "readv" {
 
     var buffer = [_]u8{42} ** 128;
     var iovecs = [_]os.iovec{os.iovec{ .iov_base = &buffer, .iov_len = buffer.len }};
-    const sqe = try ring.readv(0xcccccccc, fd_index, iovecs[0..], 0);
+    const sqe = try ring.read(0xcccccccc, fd_index, .{ .iovecs = iovecs[0..] }, 0);
     try testing.expectEqual(linux.IORING_OP.READV, sqe.opcode);
     sqe.flags |= linux.IOSQE_FIXED_FILE;
 
@@ -1616,7 +1753,7 @@ test "writev/fsync/readv" {
     try testing.expectEqual(fd, sqe_fsync.fd);
     sqe_fsync.flags |= linux.IOSQE_IO_LINK;
 
-    const sqe_readv = try ring.readv(0xffffffff, fd, iovecs_read[0..], 17);
+    const sqe_readv = try ring.read(0xffffffff, fd, .{ .iovecs = iovecs_read[0..] }, 17);
     try testing.expectEqual(linux.IORING_OP.READV, sqe_readv.opcode);
     try testing.expectEqual(@as(u64, 17), sqe_readv.off);
 
@@ -1671,7 +1808,7 @@ test "write/read" {
     try testing.expectEqual(linux.IORING_OP.WRITE, sqe_write.opcode);
     try testing.expectEqual(@as(u64, 10), sqe_write.off);
     sqe_write.flags |= linux.IOSQE_IO_LINK;
-    const sqe_read = try ring.read(0x22222222, fd, buffer_read[0..], 10);
+    const sqe_read = try ring.read(0x22222222, fd, .{ .buffer = buffer_read[0..] }, 10);
     try testing.expectEqual(linux.IORING_OP.READ, sqe_read.opcode);
     try testing.expectEqual(@as(u64, 10), sqe_read.off);
     try testing.expectEqual(@as(u32, 2), try ring.submit());
@@ -1768,7 +1905,7 @@ test "openat" {
     const flags: u32 = os.O.CLOEXEC | os.O.RDWR | os.O.CREAT;
     const mode: os.mode_t = 0o666;
     const sqe_openat = try ring.openat(0x33333333, linux.AT.FDCWD, path, flags, mode);
-    try testing.expectEqual(io_uring_sqe{
+    try testing.expectEqual(linux.io_uring_sqe{
         .opcode = .OPENAT,
         .flags = 0,
         .ioprio = 0,
@@ -1840,53 +1977,15 @@ test "accept/connect/send/recv" {
     };
     defer ring.deinit();
 
-    const address = try net.Address.parseIp4("127.0.0.1", 3131);
-    const kernel_backlog = 1;
-    const server = try os.socket(address.any.family, os.SOCK.STREAM | os.SOCK.CLOEXEC, 0);
-    defer os.close(server);
-    try os.setsockopt(server, os.SOL.SOCKET, os.SO.REUSEADDR, &mem.toBytes(@as(c_int, 1)));
-    try os.bind(server, &address.any, address.getOsSockLen());
-    try os.listen(server, kernel_backlog);
+    const socket_test_harness = try createSocketTestHarness(&ring);
+    defer socket_test_harness.close();
 
     const buffer_send = [_]u8{ 1, 0, 1, 0, 1, 0, 1, 0, 1, 0 };
     var buffer_recv = [_]u8{ 0, 1, 0, 1, 0 };
 
-    var accept_addr: os.sockaddr = undefined;
-    var accept_addr_len: os.socklen_t = @sizeOf(@TypeOf(accept_addr));
-    _ = try ring.accept(0xaaaaaaaa, server, &accept_addr, &accept_addr_len, 0);
-    try testing.expectEqual(@as(u32, 1), try ring.submit());
-
-    const client = try os.socket(address.any.family, os.SOCK.STREAM | os.SOCK.CLOEXEC, 0);
-    defer os.close(client);
-    _ = try ring.connect(0xcccccccc, client, &address.any, address.getOsSockLen());
-    try testing.expectEqual(@as(u32, 1), try ring.submit());
-
-    var cqe_accept = try ring.copy_cqe();
-    if (cqe_accept.err() == .INVAL) return error.SkipZigTest;
-    var cqe_connect = try ring.copy_cqe();
-    if (cqe_connect.err() == .INVAL) return error.SkipZigTest;
-
-    // The accept/connect CQEs may arrive in any order, the connect CQE will sometimes come first:
-    if (cqe_accept.user_data == 0xcccccccc and cqe_connect.user_data == 0xaaaaaaaa) {
-        const a = cqe_accept;
-        const b = cqe_connect;
-        cqe_accept = b;
-        cqe_connect = a;
-    }
-
-    try testing.expectEqual(@as(u64, 0xaaaaaaaa), cqe_accept.user_data);
-    if (cqe_accept.res <= 0) std.debug.print("\ncqe_accept.res={}\n", .{cqe_accept.res});
-    try testing.expect(cqe_accept.res > 0);
-    try testing.expectEqual(@as(u32, 0), cqe_accept.flags);
-    try testing.expectEqual(linux.io_uring_cqe{
-        .user_data = 0xcccccccc,
-        .res = 0,
-        .flags = 0,
-    }, cqe_connect);
-
-    const send = try ring.send(0xeeeeeeee, client, buffer_send[0..], 0);
+    const send = try ring.send(0xeeeeeeee, socket_test_harness.client, buffer_send[0..], 0);
     send.flags |= linux.IOSQE_IO_LINK;
-    _ = try ring.recv(0xffffffff, cqe_accept.res, buffer_recv[0..], 0);
+    _ = try ring.recv(0xffffffff, socket_test_harness.server, .{ .buffer = buffer_recv[0..] }, 0);
     try testing.expectEqual(@as(u32, 2), try ring.submit());
 
     const cqe_send = try ring.copy_cqe();
@@ -1908,6 +2007,88 @@ test "accept/connect/send/recv" {
     try testing.expectEqualSlices(u8, buffer_send[0..buffer_recv.len], buffer_recv[0..]);
 }
 
+test "sendmsg/recvmsg" {
+    if (builtin.os.tag != .linux) return error.SkipZigTest;
+
+    var ring = IO_Uring.init(2, 0) catch |err| switch (err) {
+        error.SystemOutdated => return error.SkipZigTest,
+        error.PermissionDenied => return error.SkipZigTest,
+        else => return err,
+    };
+    defer ring.deinit();
+
+    const address_server = try net.Address.parseIp4("127.0.0.1", 3131);
+
+    const server = try os.socket(address_server.any.family, os.SOCK.DGRAM, 0);
+    defer os.close(server);
+    try os.setsockopt(server, os.SOL.SOCKET, os.SO.REUSEPORT, &mem.toBytes(@as(c_int, 1)));
+    try os.setsockopt(server, os.SOL.SOCKET, os.SO.REUSEADDR, &mem.toBytes(@as(c_int, 1)));
+    try os.bind(server, &address_server.any, address_server.getOsSockLen());
+
+    const client = try os.socket(address_server.any.family, os.SOCK.DGRAM, 0);
+    defer os.close(client);
+
+    const buffer_send = [_]u8{42} ** 128;
+    const iovecs_send = [_]os.iovec_const{
+        os.iovec_const{ .iov_base = &buffer_send, .iov_len = buffer_send.len },
+    };
+    const msg_send = os.msghdr_const{
+        .name = &address_server.any,
+        .namelen = address_server.getOsSockLen(),
+        .iov = &iovecs_send,
+        .iovlen = 1,
+        .control = null,
+        .controllen = 0,
+        .flags = 0,
+    };
+    const sqe_sendmsg = try ring.sendmsg(0x11111111, client, &msg_send, 0);
+    sqe_sendmsg.flags |= linux.IOSQE_IO_LINK;
+    try testing.expectEqual(linux.IORING_OP.SENDMSG, sqe_sendmsg.opcode);
+    try testing.expectEqual(client, sqe_sendmsg.fd);
+
+    var buffer_recv = [_]u8{0} ** 128;
+    var iovecs_recv = [_]os.iovec{
+        os.iovec{ .iov_base = &buffer_recv, .iov_len = buffer_recv.len },
+    };
+    var addr = [_]u8{0} ** 4;
+    var address_recv = net.Address.initIp4(addr, 0);
+    var msg_recv: os.msghdr = os.msghdr{
+        .name = &address_recv.any,
+        .namelen = address_recv.getOsSockLen(),
+        .iov = &iovecs_recv,
+        .iovlen = 1,
+        .control = null,
+        .controllen = 0,
+        .flags = 0,
+    };
+    const sqe_recvmsg = try ring.recvmsg(0x22222222, server, &msg_recv, 0);
+    try testing.expectEqual(linux.IORING_OP.RECVMSG, sqe_recvmsg.opcode);
+    try testing.expectEqual(server, sqe_recvmsg.fd);
+
+    try testing.expectEqual(@as(u32, 2), ring.sq_ready());
+    try testing.expectEqual(@as(u32, 2), try ring.submit_and_wait(2));
+    try testing.expectEqual(@as(u32, 0), ring.sq_ready());
+    try testing.expectEqual(@as(u32, 2), ring.cq_ready());
+
+    const cqe_sendmsg = try ring.copy_cqe();
+    if (cqe_sendmsg.res == -@as(i32, @enumToInt(linux.E.INVAL))) return error.SkipZigTest;
+    try testing.expectEqual(linux.io_uring_cqe{
+        .user_data = 0x11111111,
+        .res = buffer_send.len,
+        .flags = 0,
+    }, cqe_sendmsg);
+
+    const cqe_recvmsg = try ring.copy_cqe();
+    if (cqe_recvmsg.res == -@as(i32, @enumToInt(linux.E.INVAL))) return error.SkipZigTest;
+    try testing.expectEqual(linux.io_uring_cqe{
+        .user_data = 0x22222222,
+        .res = buffer_recv.len,
+        .flags = 0,
+    }, cqe_recvmsg);
+
+    try testing.expectEqualSlices(u8, buffer_send[0..buffer_recv.len], buffer_recv[0..]);
+}
+
 test "timeout (after a relative time)" {
     if (builtin.os.tag != .linux) return error.SkipZigTest;
 
@@ -2029,50 +2210,12 @@ test "accept/connect/recv/link_timeout" {
     };
     defer ring.deinit();
 
-    const address = try net.Address.parseIp4("127.0.0.1", 3131);
-    const kernel_backlog = 1;
-    const server = try os.socket(address.any.family, os.SOCK.STREAM | os.SOCK.CLOEXEC, 0);
-    defer os.close(server);
-    try os.setsockopt(server, os.SOL.SOCKET, os.SO.REUSEADDR, &mem.toBytes(@as(c_int, 1)));
-    try os.bind(server, &address.any, address.getOsSockLen());
-    try os.listen(server, kernel_backlog);
+    const socket_test_harness = try createSocketTestHarness(&ring);
+    defer socket_test_harness.close();
 
     var buffer_recv = [_]u8{ 0, 1, 0, 1, 0 };
 
-    var accept_addr: os.sockaddr = undefined;
-    var accept_addr_len: os.socklen_t = @sizeOf(@TypeOf(accept_addr));
-    _ = try ring.accept(0xaaaaaaaa, server, &accept_addr, &accept_addr_len, 0);
-    try testing.expectEqual(@as(u32, 1), try ring.submit());
-
-    const client = try os.socket(address.any.family, os.SOCK.STREAM | os.SOCK.CLOEXEC, 0);
-    defer os.close(client);
-    _ = try ring.connect(0xcccccccc, client, &address.any, address.getOsSockLen());
-    try testing.expectEqual(@as(u32, 1), try ring.submit());
-
-    var cqe_accept = try ring.copy_cqe();
-    if (cqe_accept.err() == .INVAL) return error.SkipZigTest;
-    var cqe_connect = try ring.copy_cqe();
-    if (cqe_connect.err() == .INVAL) return error.SkipZigTest;
-
-    // The accept/connect CQEs may arrive in any order, the connect CQE will sometimes come first:
-    if (cqe_accept.user_data == 0xcccccccc and cqe_connect.user_data == 0xaaaaaaaa) {
-        const a = cqe_accept;
-        const b = cqe_connect;
-        cqe_accept = b;
-        cqe_connect = a;
-    }
-
-    try testing.expectEqual(@as(u64, 0xaaaaaaaa), cqe_accept.user_data);
-    if (cqe_accept.res <= 0) std.debug.print("\ncqe_accept.res={}\n", .{cqe_accept.res});
-    try testing.expect(cqe_accept.res > 0);
-    try testing.expectEqual(@as(u32, 0), cqe_accept.flags);
-    try testing.expectEqual(linux.io_uring_cqe{
-        .user_data = 0xcccccccc,
-        .res = 0,
-        .flags = 0,
-    }, cqe_connect);
-
-    const sqe_recv = try ring.recv(0xffffffff, cqe_accept.res, buffer_recv[0..], 0);
+    const sqe_recv = try ring.recv(0xffffffff, socket_test_harness.server, .{ .buffer = buffer_recv[0..] }, 0);
     sqe_recv.flags |= linux.IOSQE_IO_LINK;
 
     const ts = os.linux.kernel_timespec{ .tv_sec = 0, .tv_nsec = 1000000 };
@@ -2216,50 +2359,12 @@ test "accept/connect/recv/cancel" {
     };
     defer ring.deinit();
 
-    const address = try net.Address.parseIp4("127.0.0.1", 3131);
-    const kernel_backlog = 1;
-    const server = try os.socket(address.any.family, os.SOCK.STREAM | os.SOCK.CLOEXEC, 0);
-    defer os.close(server);
-    try os.setsockopt(server, os.SOL.SOCKET, os.SO.REUSEADDR, &mem.toBytes(@as(c_int, 1)));
-    try os.bind(server, &address.any, address.getOsSockLen());
-    try os.listen(server, kernel_backlog);
+    const socket_test_harness = try createSocketTestHarness(&ring);
+    defer socket_test_harness.close();
 
     var buffer_recv = [_]u8{ 0, 1, 0, 1, 0 };
 
-    var accept_addr: os.sockaddr = undefined;
-    var accept_addr_len: os.socklen_t = @sizeOf(@TypeOf(accept_addr));
-    _ = try ring.accept(0xaaaaaaaa, server, &accept_addr, &accept_addr_len, 0);
-    try testing.expectEqual(@as(u32, 1), try ring.submit());
-
-    const client = try os.socket(address.any.family, os.SOCK.STREAM | os.SOCK.CLOEXEC, 0);
-    defer os.close(client);
-    _ = try ring.connect(0xcccccccc, client, &address.any, address.getOsSockLen());
-    try testing.expectEqual(@as(u32, 1), try ring.submit());
-
-    var cqe_accept = try ring.copy_cqe();
-    if (cqe_accept.err() == .INVAL) return error.SkipZigTest;
-    var cqe_connect = try ring.copy_cqe();
-    if (cqe_connect.err() == .INVAL) return error.SkipZigTest;
-
-    // The accept/connect CQEs may arrive in any order, the connect CQE will sometimes come first:
-    if (cqe_accept.user_data == 0xcccccccc and cqe_connect.user_data == 0xaaaaaaaa) {
-        const a = cqe_accept;
-        const b = cqe_connect;
-        cqe_accept = b;
-        cqe_connect = a;
-    }
-
-    try testing.expectEqual(@as(u64, 0xaaaaaaaa), cqe_accept.user_data);
-    if (cqe_accept.res <= 0) std.debug.print("\ncqe_accept.res={}\n", .{cqe_accept.res});
-    try testing.expect(cqe_accept.res > 0);
-    try testing.expectEqual(@as(u32, 0), cqe_accept.flags);
-    try testing.expectEqual(linux.io_uring_cqe{
-        .user_data = 0xcccccccc,
-        .res = 0,
-        .flags = 0,
-    }, cqe_connect);
-
-    _ = try ring.recv(0xffffffff, cqe_accept.res, buffer_recv[0..], 0);
+    _ = try ring.recv(0xffffffff, socket_test_harness.server, .{ .buffer = buffer_recv[0..] }, 0);
     try testing.expectEqual(@as(u32, 1), try ring.submit());
 
     const sqe_cancel = try ring.cancel(0x99999999, 0xffffffff, 0);
@@ -2268,15 +2373,25 @@ test "accept/connect/recv/cancel" {
     try testing.expectEqual(@as(u64, 0x99999999), sqe_cancel.user_data);
     try testing.expectEqual(@as(u32, 1), try ring.submit());
 
-    const cqe_recv = try ring.copy_cqe();
+    var cqe_recv = try ring.copy_cqe();
     if (cqe_recv.err() == .INVAL) return error.SkipZigTest;
+    var cqe_cancel = try ring.copy_cqe();
+    if (cqe_cancel.err() == .INVAL) return error.SkipZigTest;
+
+    // The recv/cancel CQEs may arrive in any order, the recv CQE will sometimes come first:
+    if (cqe_recv.user_data == 0x99999999 and cqe_cancel.user_data == 0xffffffff) {
+        const a = cqe_recv;
+        const b = cqe_cancel;
+        cqe_recv = b;
+        cqe_cancel = a;
+    }
+
     try testing.expectEqual(linux.io_uring_cqe{
         .user_data = 0xffffffff,
         .res = -@as(i32, @enumToInt(linux.E.CANCELED)),
         .flags = 0,
     }, cqe_recv);
 
-    const cqe_cancel = try ring.copy_cqe();
     try testing.expectEqual(linux.io_uring_cqe{
         .user_data = 0x99999999,
         .res = 0,
@@ -2321,7 +2436,7 @@ test "register_files_update" {
 
     var buffer = [_]u8{42} ** 128;
     {
-        const sqe = try ring.read(0xcccccccc, fd_index, &buffer, 0);
+        const sqe = try ring.read(0xcccccccc, fd_index, .{ .buffer = &buffer }, 0);
         try testing.expectEqual(linux.IORING_OP.READ, sqe.opcode);
         sqe.flags |= linux.IOSQE_FIXED_FILE;
 
@@ -2342,7 +2457,7 @@ test "register_files_update" {
 
     {
         // Next read should still work since fd_index in the registered file descriptors hasn't been updated yet.
-        const sqe = try ring.read(0xcccccccc, fd_index, &buffer, 0);
+        const sqe = try ring.read(0xcccccccc, fd_index, .{ .buffer = &buffer }, 0);
         try testing.expectEqual(linux.IORING_OP.READ, sqe.opcode);
         sqe.flags |= linux.IOSQE_FIXED_FILE;
 
@@ -2359,7 +2474,7 @@ test "register_files_update" {
 
     {
         // Now this should fail since both fds are sparse (-1)
-        const sqe = try ring.read(0xcccccccc, fd_index, &buffer, 0);
+        const sqe = try ring.read(0xcccccccc, fd_index, .{ .buffer = &buffer }, 0);
         try testing.expectEqual(linux.IORING_OP.READ, sqe.opcode);
         sqe.flags |= linux.IOSQE_FIXED_FILE;
 
@@ -2701,3 +2816,455 @@ test "linkat" {
     const read = try second_file.readAll(&second_file_data);
     try testing.expectEqualStrings("hello", second_file_data[0..read]);
 }
+
+test "provide_buffers: read" {
+    if (builtin.os.tag != .linux) return error.SkipZigTest;
+
+    var ring = IO_Uring.init(1, 0) catch |err| switch (err) {
+        error.SystemOutdated => return error.SkipZigTest,
+        error.PermissionDenied => return error.SkipZigTest,
+        else => return err,
+    };
+    defer ring.deinit();
+
+    const fd = try os.openZ("/dev/zero", os.O.RDONLY | os.O.CLOEXEC, 0);
+    defer os.close(fd);
+
+    const group_id = 1337;
+    const buffer_id = 0;
+
+    const buffer_len = 128;
+
+    var buffers: [4][buffer_len]u8 = undefined;
+
+    // Provide 4 buffers
+
+    {
+        const sqe = try ring.provide_buffers(0xcccccccc, @ptrCast([*]u8, &buffers), buffers.len, buffer_len, group_id, buffer_id);
+        try testing.expectEqual(linux.IORING_OP.PROVIDE_BUFFERS, sqe.opcode);
+        try testing.expectEqual(@as(i32, buffers.len), sqe.fd);
+        try testing.expectEqual(@as(u32, buffers[0].len), sqe.len);
+        try testing.expectEqual(@as(u16, group_id), sqe.buf_index);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            // Happens when the kernel is < 5.7
+            .INVAL => return error.SkipZigTest,
+            .SUCCESS => {},
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+        try testing.expectEqual(@as(u64, 0xcccccccc), cqe.user_data);
+    }
+
+    // Do 4 reads which should consume all buffers
+
+    var i: usize = 0;
+    while (i < buffers.len) : (i += 1) {
+        var sqe = try ring.read(0xdededede, fd, .{ .buffer_selection = .{ .group_id = group_id, .len = buffer_len } }, 0);
+        try testing.expectEqual(linux.IORING_OP.READ, sqe.opcode);
+        try testing.expectEqual(@as(i32, fd), sqe.fd);
+        try testing.expectEqual(@as(u64, 0), sqe.addr);
+        try testing.expectEqual(@as(u32, buffer_len), sqe.len);
+        try testing.expectEqual(@as(u16, group_id), sqe.buf_index);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            .SUCCESS => {},
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+
+        try testing.expect(cqe.flags & linux.IORING_CQE_F_BUFFER == linux.IORING_CQE_F_BUFFER);
+        const used_buffer_id = cqe.flags >> 16;
+        try testing.expect(used_buffer_id >= 0 and used_buffer_id <= 3);
+        try testing.expectEqual(@as(i32, buffer_len), cqe.res);
+
+        try testing.expectEqual(@as(u64, 0xdededede), cqe.user_data);
+        try testing.expectEqualSlices(u8, &([_]u8{0} ** buffer_len), buffers[used_buffer_id][0..@intCast(usize, cqe.res)]);
+    }
+
+    // This read should fail
+
+    {
+        var sqe = try ring.read(0xdfdfdfdf, fd, .{ .buffer_selection = .{ .group_id = group_id, .len = buffer_len } }, 0);
+        try testing.expectEqual(linux.IORING_OP.READ, sqe.opcode);
+        try testing.expectEqual(@as(i32, fd), sqe.fd);
+        try testing.expectEqual(@as(u64, 0), sqe.addr);
+        try testing.expectEqual(@as(u32, buffer_len), sqe.len);
+        try testing.expectEqual(@as(u16, group_id), sqe.buf_index);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            // Expected
+            .NOBUFS => {},
+            .SUCCESS => std.debug.panic("unexpected success", .{}),
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+        try testing.expectEqual(@as(u64, 0xdfdfdfdf), cqe.user_data);
+    }
+
+    // Provide 1 buffer again
+
+    // Deliberately put something we don't expect in the buffers
+    mem.set(u8, mem.sliceAsBytes(&buffers), 42);
+
+    const reprovided_buffer_id = 2;
+
+    {
+        _ = try ring.provide_buffers(0xabababab, @ptrCast([*]u8, &buffers[reprovided_buffer_id]), 1, buffer_len, group_id, reprovided_buffer_id);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            .SUCCESS => {},
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+    }
+
+    // Final read which should work
+
+    {
+        var sqe = try ring.read(0xdfdfdfdf, fd, .{ .buffer_selection = .{ .group_id = group_id, .len = buffer_len } }, 0);
+        try testing.expectEqual(linux.IORING_OP.READ, sqe.opcode);
+        try testing.expectEqual(@as(i32, fd), sqe.fd);
+        try testing.expectEqual(@as(u64, 0), sqe.addr);
+        try testing.expectEqual(@as(u32, buffer_len), sqe.len);
+        try testing.expectEqual(@as(u16, group_id), sqe.buf_index);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            .SUCCESS => {},
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+
+        try testing.expect(cqe.flags & linux.IORING_CQE_F_BUFFER == linux.IORING_CQE_F_BUFFER);
+        const used_buffer_id = cqe.flags >> 16;
+        try testing.expectEqual(used_buffer_id, reprovided_buffer_id);
+        try testing.expectEqual(@as(i32, buffer_len), cqe.res);
+        try testing.expectEqual(@as(u64, 0xdfdfdfdf), cqe.user_data);
+        try testing.expectEqualSlices(u8, &([_]u8{0} ** buffer_len), buffers[used_buffer_id][0..@intCast(usize, cqe.res)]);
+    }
+}
+
+test "remove_buffers" {
+    if (builtin.os.tag != .linux) return error.SkipZigTest;
+
+    var ring = IO_Uring.init(1, 0) catch |err| switch (err) {
+        error.SystemOutdated => return error.SkipZigTest,
+        error.PermissionDenied => return error.SkipZigTest,
+        else => return err,
+    };
+    defer ring.deinit();
+
+    const fd = try os.openZ("/dev/zero", os.O.RDONLY | os.O.CLOEXEC, 0);
+    defer os.close(fd);
+
+    const group_id = 1337;
+    const buffer_id = 0;
+
+    const buffer_len = 128;
+
+    var buffers: [4][buffer_len]u8 = undefined;
+
+    // Provide 4 buffers
+
+    {
+        _ = try ring.provide_buffers(0xcccccccc, @ptrCast([*]u8, &buffers), buffers.len, buffer_len, group_id, buffer_id);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            .SUCCESS => {},
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+        try testing.expectEqual(@as(u64, 0xcccccccc), cqe.user_data);
+    }
+
+    // Remove the first 3 buffers
+
+    {
+        var sqe = try ring.remove_buffers(0xbababababa, 3, group_id);
+        try testing.expectEqual(linux.IORING_OP.REMOVE_BUFFERS, sqe.opcode);
+        try testing.expectEqual(@as(i32, 3), sqe.fd);
+        try testing.expectEqual(@as(u64, 0), sqe.addr);
+        try testing.expectEqual(@as(u16, group_id), sqe.buf_index);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            .SUCCESS => {},
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+        try testing.expectEqual(@as(u64, 0xbababababa), cqe.user_data);
+    }
+
+    // This read should work
+
+    {
+        _ = try ring.read(0xdfdfdfdf, fd, .{ .buffer_selection = .{ .group_id = group_id, .len = buffer_len } }, 0);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            .SUCCESS => {},
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+
+        try testing.expect(cqe.flags & linux.IORING_CQE_F_BUFFER == linux.IORING_CQE_F_BUFFER);
+        const used_buffer_id = cqe.flags >> 16;
+        try testing.expectEqual(used_buffer_id, 0);
+        try testing.expectEqual(@as(i32, buffer_len), cqe.res);
+        try testing.expectEqual(@as(u64, 0xdfdfdfdf), cqe.user_data);
+        try testing.expectEqualSlices(u8, &([_]u8{0} ** buffer_len), buffers[used_buffer_id][0..@intCast(usize, cqe.res)]);
+    }
+
+    // Final read should _not_ work
+
+    {
+        _ = try ring.read(0xdfdfdfdf, fd, .{ .buffer_selection = .{ .group_id = group_id, .len = buffer_len } }, 0);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            // Expected
+            .NOBUFS => {},
+            .SUCCESS => std.debug.panic("unexpected success", .{}),
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+    }
+}
+
+test "provide_buffers: accept/connect/send/recv" {
+    if (builtin.os.tag != .linux) return error.SkipZigTest;
+
+    var ring = IO_Uring.init(16, 0) catch |err| switch (err) {
+        error.SystemOutdated => return error.SkipZigTest,
+        error.PermissionDenied => return error.SkipZigTest,
+        else => return err,
+    };
+    defer ring.deinit();
+
+    const group_id = 1337;
+    const buffer_id = 0;
+
+    const buffer_len = 128;
+    var buffers: [4][buffer_len]u8 = undefined;
+
+    // Provide 4 buffers
+
+    {
+        const sqe = try ring.provide_buffers(0xcccccccc, @ptrCast([*]u8, &buffers), buffers.len, buffer_len, group_id, buffer_id);
+        try testing.expectEqual(linux.IORING_OP.PROVIDE_BUFFERS, sqe.opcode);
+        try testing.expectEqual(@as(i32, buffers.len), sqe.fd);
+        try testing.expectEqual(@as(u32, buffer_len), sqe.len);
+        try testing.expectEqual(@as(u16, group_id), sqe.buf_index);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            // Happens when the kernel is < 5.7
+            .INVAL => return error.SkipZigTest,
+            .SUCCESS => {},
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+        try testing.expectEqual(@as(u64, 0xcccccccc), cqe.user_data);
+    }
+
+    const socket_test_harness = try createSocketTestHarness(&ring);
+    defer socket_test_harness.close();
+
+    // Do 4 send on the socket
+
+    {
+        var i: usize = 0;
+        while (i < buffers.len) : (i += 1) {
+            _ = try ring.send(0xdeaddead, socket_test_harness.server, &([_]u8{'z'} ** buffer_len), 0);
+            try testing.expectEqual(@as(u32, 1), try ring.submit());
+        }
+
+        var cqes: [4]linux.io_uring_cqe = undefined;
+        try testing.expectEqual(@as(u32, 4), try ring.copy_cqes(&cqes, 4));
+    }
+
+    // Do 4 recv which should consume all buffers
+
+    // Deliberately put something we don't expect in the buffers
+    mem.set(u8, mem.sliceAsBytes(&buffers), 1);
+
+    var i: usize = 0;
+    while (i < buffers.len) : (i += 1) {
+        var sqe = try ring.recv(0xdededede, socket_test_harness.client, .{ .buffer_selection = .{ .group_id = group_id, .len = buffer_len } }, 0);
+        try testing.expectEqual(linux.IORING_OP.RECV, sqe.opcode);
+        try testing.expectEqual(@as(i32, socket_test_harness.client), sqe.fd);
+        try testing.expectEqual(@as(u64, 0), sqe.addr);
+        try testing.expectEqual(@as(u32, buffer_len), sqe.len);
+        try testing.expectEqual(@as(u16, group_id), sqe.buf_index);
+        try testing.expectEqual(@as(u32, 0), sqe.rw_flags);
+        try testing.expectEqual(@as(u32, linux.IOSQE_BUFFER_SELECT), sqe.flags);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            .SUCCESS => {},
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+
+        try testing.expect(cqe.flags & linux.IORING_CQE_F_BUFFER == linux.IORING_CQE_F_BUFFER);
+        const used_buffer_id = cqe.flags >> 16;
+        try testing.expect(used_buffer_id >= 0 and used_buffer_id <= 3);
+        try testing.expectEqual(@as(i32, buffer_len), cqe.res);
+
+        try testing.expectEqual(@as(u64, 0xdededede), cqe.user_data);
+        const buffer = buffers[used_buffer_id][0..@intCast(usize, cqe.res)];
+        try testing.expectEqualSlices(u8, &([_]u8{'z'} ** buffer_len), buffer);
+    }
+
+    // This recv should fail
+
+    {
+        var sqe = try ring.recv(0xdfdfdfdf, socket_test_harness.client, .{ .buffer_selection = .{ .group_id = group_id, .len = buffer_len } }, 0);
+        try testing.expectEqual(linux.IORING_OP.RECV, sqe.opcode);
+        try testing.expectEqual(@as(i32, socket_test_harness.client), sqe.fd);
+        try testing.expectEqual(@as(u64, 0), sqe.addr);
+        try testing.expectEqual(@as(u32, buffer_len), sqe.len);
+        try testing.expectEqual(@as(u16, group_id), sqe.buf_index);
+        try testing.expectEqual(@as(u32, 0), sqe.rw_flags);
+        try testing.expectEqual(@as(u32, linux.IOSQE_BUFFER_SELECT), sqe.flags);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            // Expected
+            .NOBUFS => {},
+            .SUCCESS => std.debug.panic("unexpected success", .{}),
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+        try testing.expectEqual(@as(u64, 0xdfdfdfdf), cqe.user_data);
+    }
+
+    // Provide 1 buffer again
+
+    const reprovided_buffer_id = 2;
+
+    {
+        _ = try ring.provide_buffers(0xabababab, @ptrCast([*]u8, &buffers[reprovided_buffer_id]), 1, buffer_len, group_id, reprovided_buffer_id);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            .SUCCESS => {},
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+    }
+
+    // Redo 1 send on the server socket
+
+    {
+        _ = try ring.send(0xdeaddead, socket_test_harness.server, &([_]u8{'w'} ** buffer_len), 0);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        _ = try ring.copy_cqe();
+    }
+
+    // Final recv which should work
+
+    // Deliberately put something we don't expect in the buffers
+    mem.set(u8, mem.sliceAsBytes(&buffers), 1);
+
+    {
+        var sqe = try ring.recv(0xdfdfdfdf, socket_test_harness.client, .{ .buffer_selection = .{ .group_id = group_id, .len = buffer_len } }, 0);
+        try testing.expectEqual(linux.IORING_OP.RECV, sqe.opcode);
+        try testing.expectEqual(@as(i32, socket_test_harness.client), sqe.fd);
+        try testing.expectEqual(@as(u64, 0), sqe.addr);
+        try testing.expectEqual(@as(u32, buffer_len), sqe.len);
+        try testing.expectEqual(@as(u16, group_id), sqe.buf_index);
+        try testing.expectEqual(@as(u32, 0), sqe.rw_flags);
+        try testing.expectEqual(@as(u32, linux.IOSQE_BUFFER_SELECT), sqe.flags);
+        try testing.expectEqual(@as(u32, 1), try ring.submit());
+
+        const cqe = try ring.copy_cqe();
+        switch (cqe.err()) {
+            .SUCCESS => {},
+            else => |errno| std.debug.panic("unhandled errno: {}", .{errno}),
+        }
+
+        try testing.expect(cqe.flags & linux.IORING_CQE_F_BUFFER == linux.IORING_CQE_F_BUFFER);
+        const used_buffer_id = cqe.flags >> 16;
+        try testing.expectEqual(used_buffer_id, reprovided_buffer_id);
+        try testing.expectEqual(@as(i32, buffer_len), cqe.res);
+        try testing.expectEqual(@as(u64, 0xdfdfdfdf), cqe.user_data);
+        const buffer = buffers[used_buffer_id][0..@intCast(usize, cqe.res)];
+        try testing.expectEqualSlices(u8, &([_]u8{'w'} ** buffer_len), buffer);
+    }
+}
+
+/// Used for testing server/client interactions.
+const SocketTestHarness = struct {
+    listener: os.socket_t,
+    server: os.socket_t,
+    client: os.socket_t,
+
+    fn close(self: SocketTestHarness) void {
+        os.closeSocket(self.client);
+        os.closeSocket(self.listener);
+    }
+};
+
+fn createSocketTestHarness(ring: *IO_Uring) !SocketTestHarness {
+    // Create a TCP server socket
+
+    const address = try net.Address.parseIp4("127.0.0.1", 3131);
+    const kernel_backlog = 1;
+    const listener_socket = try os.socket(address.any.family, os.SOCK.STREAM | os.SOCK.CLOEXEC, 0);
+    errdefer os.closeSocket(listener_socket);
+
+    try os.setsockopt(listener_socket, os.SOL.SOCKET, os.SO.REUSEADDR, &mem.toBytes(@as(c_int, 1)));
+    try os.bind(listener_socket, &address.any, address.getOsSockLen());
+    try os.listen(listener_socket, kernel_backlog);
+
+    // Submit 1 accept
+    var accept_addr: os.sockaddr = undefined;
+    var accept_addr_len: os.socklen_t = @sizeOf(@TypeOf(accept_addr));
+    _ = try ring.accept(0xaaaaaaaa, listener_socket, &accept_addr, &accept_addr_len, 0);
+
+    // Create a TCP client socket
+    const client = try os.socket(address.any.family, os.SOCK.STREAM | os.SOCK.CLOEXEC, 0);
+    errdefer os.closeSocket(client);
+    _ = try ring.connect(0xcccccccc, client, &address.any, address.getOsSockLen());
+
+    try testing.expectEqual(@as(u32, 2), try ring.submit());
+
+    var cqe_accept = try ring.copy_cqe();
+    if (cqe_accept.err() == .INVAL) return error.SkipZigTest;
+    var cqe_connect = try ring.copy_cqe();
+    if (cqe_connect.err() == .INVAL) return error.SkipZigTest;
+
+    // The accept/connect CQEs may arrive in any order, the connect CQE will sometimes come first:
+    if (cqe_accept.user_data == 0xcccccccc and cqe_connect.user_data == 0xaaaaaaaa) {
+        const a = cqe_accept;
+        const b = cqe_connect;
+        cqe_accept = b;
+        cqe_connect = a;
+    }
+
+    try testing.expectEqual(@as(u64, 0xaaaaaaaa), cqe_accept.user_data);
+    if (cqe_accept.res <= 0) std.debug.print("\ncqe_accept.res={}\n", .{cqe_accept.res});
+    try testing.expect(cqe_accept.res > 0);
+    try testing.expectEqual(@as(u32, 0), cqe_accept.flags);
+    try testing.expectEqual(linux.io_uring_cqe{
+        .user_data = 0xcccccccc,
+        .res = 0,
+        .flags = 0,
+    }, cqe_connect);
+
+    // All good
+
+    return SocketTestHarness{
+        .listener = listener_socket,
+        .server = cqe_accept.res,
+        .client = client,
+    };
+}
diff --git a/lib/std/os/linux/ioctl.zig b/lib/std/os/linux/ioctl.zig
index 35ff1bfc32..96ec96c306 100644
--- a/lib/std/os/linux/ioctl.zig
+++ b/lib/std/os/linux/ioctl.zig
@@ -10,7 +10,7 @@ const bits = switch (@import("builtin").cpu.arch) {
     .powerpc64,
     .powerpc64le,
     .sparc,
-    .sparcv9,
+    .sparc64,
     .sparcel,
     => .{ .size = 13, .dir = 3, .none = 1, .read = 2, .write = 4 },
     else => .{ .size = 14, .dir = 2, .none = 0, .read = 2, .write = 1 },
diff --git a/lib/std/os/linux/mips.zig b/lib/std/os/linux/mips.zig
index a7235f4de2..ee0aff281c 100644
--- a/lib/std/os/linux/mips.zig
+++ b/lib/std/os/linux/mips.zig
@@ -1,12 +1,14 @@
 const std = @import("../../std.zig");
 const maxInt = std.math.maxInt;
 const linux = std.os.linux;
+const SYS = linux.SYS;
 const socklen_t = linux.socklen_t;
-const iovec = linux.iovec;
-const iovec_const = linux.iovec_const;
+const iovec = std.os.iovec;
+const iovec_const = std.os.iovec_const;
 const uid_t = linux.uid_t;
 const gid_t = linux.gid_t;
 const pid_t = linux.pid_t;
+const sockaddr = linux.sockaddr;
 const timespec = linux.timespec;
 
 pub fn syscall0(number: SYS) usize {
@@ -188,8 +190,13 @@ pub fn syscall7(
     );
 }
 
+const CloneFn = switch (@import("builtin").zig_backend) {
+    .stage1 => fn (arg: usize) callconv(.C) u8,
+    else => *const fn (arg: usize) callconv(.C) u8,
+};
+
 /// This matches the libc clone function.
-pub extern fn clone(func: fn (arg: usize) callconv(.C) u8, stack: usize, flags: u32, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
+pub extern fn clone(func: CloneFn, stack: usize, flags: u32, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
 
 pub fn restore() callconv(.Naked) void {
     return asm volatile ("syscall"
@@ -207,433 +214,6 @@ pub fn restore_rt() callconv(.Naked) void {
     );
 }
 
-pub const SYS = enum(usize) {
-    pub const Linux = 4000;
-
-    syscall = Linux + 0,
-    exit = Linux + 1,
-    fork = Linux + 2,
-    read = Linux + 3,
-    write = Linux + 4,
-    open = Linux + 5,
-    close = Linux + 6,
-    waitpid = Linux + 7,
-    creat = Linux + 8,
-    link = Linux + 9,
-    unlink = Linux + 10,
-    execve = Linux + 11,
-    chdir = Linux + 12,
-    time = Linux + 13,
-    mknod = Linux + 14,
-    chmod = Linux + 15,
-    lchown = Linux + 16,
-    @"break" = Linux + 17,
-    unused18 = Linux + 18,
-    lseek = Linux + 19,
-    getpid = Linux + 20,
-    mount = Linux + 21,
-    umount = Linux + 22,
-    setuid = Linux + 23,
-    getuid = Linux + 24,
-    stime = Linux + 25,
-    ptrace = Linux + 26,
-    alarm = Linux + 27,
-    unused28 = Linux + 28,
-    pause = Linux + 29,
-    utime = Linux + 30,
-    stty = Linux + 31,
-    gtty = Linux + 32,
-    access = Linux + 33,
-    nice = Linux + 34,
-    ftime = Linux + 35,
-    sync = Linux + 36,
-    kill = Linux + 37,
-    rename = Linux + 38,
-    mkdir = Linux + 39,
-    rmdir = Linux + 40,
-    dup = Linux + 41,
-    pipe = Linux + 42,
-    times = Linux + 43,
-    prof = Linux + 44,
-    brk = Linux + 45,
-    setgid = Linux + 46,
-    getgid = Linux + 47,
-    signal = Linux + 48,
-    geteuid = Linux + 49,
-    getegid = Linux + 50,
-    acct = Linux + 51,
-    umount2 = Linux + 52,
-    lock = Linux + 53,
-    ioctl = Linux + 54,
-    fcntl = Linux + 55,
-    mpx = Linux + 56,
-    setpgid = Linux + 57,
-    ulimit = Linux + 58,
-    unused59 = Linux + 59,
-    umask = Linux + 60,
-    chroot = Linux + 61,
-    ustat = Linux + 62,
-    dup2 = Linux + 63,
-    getppid = Linux + 64,
-    getpgrp = Linux + 65,
-    setsid = Linux + 66,
-    sigaction = Linux + 67,
-    sgetmask = Linux + 68,
-    ssetmask = Linux + 69,
-    setreuid = Linux + 70,
-    setregid = Linux + 71,
-    sigsuspend = Linux + 72,
-    sigpending = Linux + 73,
-    sethostname = Linux + 74,
-    setrlimit = Linux + 75,
-    getrlimit = Linux + 76,
-    getrusage = Linux + 77,
-    gettimeofday = Linux + 78,
-    settimeofday = Linux + 79,
-    getgroups = Linux + 80,
-    setgroups = Linux + 81,
-    reserved82 = Linux + 82,
-    symlink = Linux + 83,
-    unused84 = Linux + 84,
-    readlink = Linux + 85,
-    uselib = Linux + 86,
-    swapon = Linux + 87,
-    reboot = Linux + 88,
-    readdir = Linux + 89,
-    mmap = Linux + 90,
-    munmap = Linux + 91,
-    truncate = Linux + 92,
-    ftruncate = Linux + 93,
-    fchmod = Linux + 94,
-    fchown = Linux + 95,
-    getpriority = Linux + 96,
-    setpriority = Linux + 97,
-    profil = Linux + 98,
-    statfs = Linux + 99,
-    fstatfs = Linux + 100,
-    ioperm = Linux + 101,
-    socketcall = Linux + 102,
-    syslog = Linux + 103,
-    setitimer = Linux + 104,
-    getitimer = Linux + 105,
-    stat = Linux + 106,
-    lstat = Linux + 107,
-    fstat = Linux + 108,
-    unused109 = Linux + 109,
-    iopl = Linux + 110,
-    vhangup = Linux + 111,
-    idle = Linux + 112,
-    vm86 = Linux + 113,
-    wait4 = Linux + 114,
-    swapoff = Linux + 115,
-    sysinfo = Linux + 116,
-    ipc = Linux + 117,
-    fsync = Linux + 118,
-    sigreturn = Linux + 119,
-    clone = Linux + 120,
-    setdomainname = Linux + 121,
-    uname = Linux + 122,
-    modify_ldt = Linux + 123,
-    adjtimex = Linux + 124,
-    mprotect = Linux + 125,
-    sigprocmask = Linux + 126,
-    create_module = Linux + 127,
-    init_module = Linux + 128,
-    delete_module = Linux + 129,
-    get_kernel_syms = Linux + 130,
-    quotactl = Linux + 131,
-    getpgid = Linux + 132,
-    fchdir = Linux + 133,
-    bdflush = Linux + 134,
-    sysfs = Linux + 135,
-    personality = Linux + 136,
-    afs_syscall = Linux + 137,
-    setfsuid = Linux + 138,
-    setfsgid = Linux + 139,
-    _llseek = Linux + 140,
-    getdents = Linux + 141,
-    _newselect = Linux + 142,
-    flock = Linux + 143,
-    msync = Linux + 144,
-    readv = Linux + 145,
-    writev = Linux + 146,
-    cacheflush = Linux + 147,
-    cachectl = Linux + 148,
-    sysmips = Linux + 149,
-    unused150 = Linux + 150,
-    getsid = Linux + 151,
-    fdatasync = Linux + 152,
-    _sysctl = Linux + 153,
-    mlock = Linux + 154,
-    munlock = Linux + 155,
-    mlockall = Linux + 156,
-    munlockall = Linux + 157,
-    sched_setparam = Linux + 158,
-    sched_getparam = Linux + 159,
-    sched_setscheduler = Linux + 160,
-    sched_getscheduler = Linux + 161,
-    sched_yield = Linux + 162,
-    sched_get_priority_max = Linux + 163,
-    sched_get_priority_min = Linux + 164,
-    sched_rr_get_interval = Linux + 165,
-    nanosleep = Linux + 166,
-    mremap = Linux + 167,
-    accept = Linux + 168,
-    bind = Linux + 169,
-    connect = Linux + 170,
-    getpeername = Linux + 171,
-    getsockname = Linux + 172,
-    getsockopt = Linux + 173,
-    listen = Linux + 174,
-    recv = Linux + 175,
-    recvfrom = Linux + 176,
-    recvmsg = Linux + 177,
-    send = Linux + 178,
-    sendmsg = Linux + 179,
-    sendto = Linux + 180,
-    setsockopt = Linux + 181,
-    shutdown = Linux + 182,
-    socket = Linux + 183,
-    socketpair = Linux + 184,
-    setresuid = Linux + 185,
-    getresuid = Linux + 186,
-    query_module = Linux + 187,
-    poll = Linux + 188,
-    nfsservctl = Linux + 189,
-    setresgid = Linux + 190,
-    getresgid = Linux + 191,
-    prctl = Linux + 192,
-    rt_sigreturn = Linux + 193,
-    rt_sigaction = Linux + 194,
-    rt_sigprocmask = Linux + 195,
-    rt_sigpending = Linux + 196,
-    rt_sigtimedwait = Linux + 197,
-    rt_sigqueueinfo = Linux + 198,
-    rt_sigsuspend = Linux + 199,
-    pread64 = Linux + 200,
-    pwrite64 = Linux + 201,
-    chown = Linux + 202,
-    getcwd = Linux + 203,
-    capget = Linux + 204,
-    capset = Linux + 205,
-    sigaltstack = Linux + 206,
-    sendfile = Linux + 207,
-    getpmsg = Linux + 208,
-    putpmsg = Linux + 209,
-    mmap2 = Linux + 210,
-    truncate64 = Linux + 211,
-    ftruncate64 = Linux + 212,
-    stat64 = Linux + 213,
-    lstat64 = Linux + 214,
-    fstat64 = Linux + 215,
-    pivot_root = Linux + 216,
-    mincore = Linux + 217,
-    madvise = Linux + 218,
-    getdents64 = Linux + 219,
-    fcntl64 = Linux + 220,
-    reserved221 = Linux + 221,
-    gettid = Linux + 222,
-    readahead = Linux + 223,
-    setxattr = Linux + 224,
-    lsetxattr = Linux + 225,
-    fsetxattr = Linux + 226,
-    getxattr = Linux + 227,
-    lgetxattr = Linux + 228,
-    fgetxattr = Linux + 229,
-    listxattr = Linux + 230,
-    llistxattr = Linux + 231,
-    flistxattr = Linux + 232,
-    removexattr = Linux + 233,
-    lremovexattr = Linux + 234,
-    fremovexattr = Linux + 235,
-    tkill = Linux + 236,
-    sendfile64 = Linux + 237,
-    futex = Linux + 238,
-    sched_setaffinity = Linux + 239,
-    sched_getaffinity = Linux + 240,
-    io_setup = Linux + 241,
-    io_destroy = Linux + 242,
-    io_getevents = Linux + 243,
-    io_submit = Linux + 244,
-    io_cancel = Linux + 245,
-    exit_group = Linux + 246,
-    lookup_dcookie = Linux + 247,
-    epoll_create = Linux + 248,
-    epoll_ctl = Linux + 249,
-    epoll_wait = Linux + 250,
-    remap_file_pages = Linux + 251,
-    set_tid_address = Linux + 252,
-    restart_syscall = Linux + 253,
-    fadvise64 = Linux + 254,
-    statfs64 = Linux + 255,
-    fstatfs64 = Linux + 256,
-    timer_create = Linux + 257,
-    timer_settime = Linux + 258,
-    timer_gettime = Linux + 259,
-    timer_getoverrun = Linux + 260,
-    timer_delete = Linux + 261,
-    clock_settime = Linux + 262,
-    clock_gettime = Linux + 263,
-    clock_getres = Linux + 264,
-    clock_nanosleep = Linux + 265,
-    tgkill = Linux + 266,
-    utimes = Linux + 267,
-    mbind = Linux + 268,
-    get_mempolicy = Linux + 269,
-    set_mempolicy = Linux + 270,
-    mq_open = Linux + 271,
-    mq_unlink = Linux + 272,
-    mq_timedsend = Linux + 273,
-    mq_timedreceive = Linux + 274,
-    mq_notify = Linux + 275,
-    mq_getsetattr = Linux + 276,
-    vserver = Linux + 277,
-    waitid = Linux + 278,
-    add_key = Linux + 280,
-    request_key = Linux + 281,
-    keyctl = Linux + 282,
-    set_thread_area = Linux + 283,
-    inotify_init = Linux + 284,
-    inotify_add_watch = Linux + 285,
-    inotify_rm_watch = Linux + 286,
-    migrate_pages = Linux + 287,
-    openat = Linux + 288,
-    mkdirat = Linux + 289,
-    mknodat = Linux + 290,
-    fchownat = Linux + 291,
-    futimesat = Linux + 292,
-    fstatat64 = Linux + 293,
-    unlinkat = Linux + 294,
-    renameat = Linux + 295,
-    linkat = Linux + 296,
-    symlinkat = Linux + 297,
-    readlinkat = Linux + 298,
-    fchmodat = Linux + 299,
-    faccessat = Linux + 300,
-    pselect6 = Linux + 301,
-    ppoll = Linux + 302,
-    unshare = Linux + 303,
-    splice = Linux + 304,
-    sync_file_range = Linux + 305,
-    tee = Linux + 306,
-    vmsplice = Linux + 307,
-    move_pages = Linux + 308,
-    set_robust_list = Linux + 309,
-    get_robust_list = Linux + 310,
-    kexec_load = Linux + 311,
-    getcpu = Linux + 312,
-    epoll_pwait = Linux + 313,
-    ioprio_set = Linux + 314,
-    ioprio_get = Linux + 315,
-    utimensat = Linux + 316,
-    signalfd = Linux + 317,
-    timerfd = Linux + 318,
-    eventfd = Linux + 319,
-    fallocate = Linux + 320,
-    timerfd_create = Linux + 321,
-    timerfd_gettime = Linux + 322,
-    timerfd_settime = Linux + 323,
-    signalfd4 = Linux + 324,
-    eventfd2 = Linux + 325,
-    epoll_create1 = Linux + 326,
-    dup3 = Linux + 327,
-    pipe2 = Linux + 328,
-    inotify_init1 = Linux + 329,
-    preadv = Linux + 330,
-    pwritev = Linux + 331,
-    rt_tgsigqueueinfo = Linux + 332,
-    perf_event_open = Linux + 333,
-    accept4 = Linux + 334,
-    recvmmsg = Linux + 335,
-    fanotify_init = Linux + 336,
-    fanotify_mark = Linux + 337,
-    prlimit64 = Linux + 338,
-    name_to_handle_at = Linux + 339,
-    open_by_handle_at = Linux + 340,
-    clock_adjtime = Linux + 341,
-    syncfs = Linux + 342,
-    sendmmsg = Linux + 343,
-    setns = Linux + 344,
-    process_vm_readv = Linux + 345,
-    process_vm_writev = Linux + 346,
-    kcmp = Linux + 347,
-    finit_module = Linux + 348,
-    sched_setattr = Linux + 349,
-    sched_getattr = Linux + 350,
-    renameat2 = Linux + 351,
-    seccomp = Linux + 352,
-    getrandom = Linux + 353,
-    memfd_create = Linux + 354,
-    bpf = Linux + 355,
-    execveat = Linux + 356,
-    userfaultfd = Linux + 357,
-    membarrier = Linux + 358,
-    mlock2 = Linux + 359,
-    copy_file_range = Linux + 360,
-    preadv2 = Linux + 361,
-    pwritev2 = Linux + 362,
-    pkey_mprotect = Linux + 363,
-    pkey_alloc = Linux + 364,
-    pkey_free = Linux + 365,
-    statx = Linux + 366,
-    rseq = Linux + 367,
-    io_pgetevents = Linux + 368,
-    semget = Linux + 393,
-    semctl = Linux + 394,
-    shmget = Linux + 395,
-    shmctl = Linux + 396,
-    shmat = Linux + 397,
-    shmdt = Linux + 398,
-    msgget = Linux + 399,
-    msgsnd = Linux + 400,
-    msgrcv = Linux + 401,
-    msgctl = Linux + 402,
-    clock_gettime64 = Linux + 403,
-    clock_settime64 = Linux + 404,
-    clock_adjtime64 = Linux + 405,
-    clock_getres_time64 = Linux + 406,
-    clock_nanosleep_time64 = Linux + 407,
-    timer_gettime64 = Linux + 408,
-    timer_settime64 = Linux + 409,
-    timerfd_gettime64 = Linux + 410,
-    timerfd_settime64 = Linux + 411,
-    utimensat_time64 = Linux + 412,
-    pselect6_time64 = Linux + 413,
-    ppoll_time64 = Linux + 414,
-    io_pgetevents_time64 = Linux + 416,
-    recvmmsg_time64 = Linux + 417,
-    mq_timedsend_time64 = Linux + 418,
-    mq_timedreceive_time64 = Linux + 419,
-    semtimedop_time64 = Linux + 420,
-    rt_sigtimedwait_time64 = Linux + 421,
-    futex_time64 = Linux + 422,
-    sched_rr_get_interval_time64 = Linux + 423,
-    pidfd_send_signal = Linux + 424,
-    io_uring_setup = Linux + 425,
-    io_uring_enter = Linux + 426,
-    io_uring_register = Linux + 427,
-    open_tree = Linux + 428,
-    move_mount = Linux + 429,
-    fsopen = Linux + 430,
-    fsconfig = Linux + 431,
-    fsmount = Linux + 432,
-    fspick = Linux + 433,
-    pidfd_open = Linux + 434,
-    clone3 = Linux + 435,
-    close_range = Linux + 436,
-    openat2 = Linux + 437,
-    pidfd_getfd = Linux + 438,
-    faccessat2 = Linux + 439,
-    process_madvise = Linux + 440,
-    epoll_pwait2 = Linux + 441,
-    mount_setattr = Linux + 442,
-    landlock_create_ruleset = Linux + 444,
-    landlock_add_rule = Linux + 445,
-    landlock_restrict_self = Linux + 446,
-
-    _,
-};
-
 pub const O = struct {
     pub const CREAT = 0o0400;
     pub const EXCL = 0o02000;
@@ -707,15 +287,35 @@ pub const VDSO = struct {
 };
 
 pub const Flock = extern struct {
-    l_type: i16,
-    l_whence: i16,
+    type: i16,
+    whence: i16,
     __pad0: [4]u8,
-    l_start: off_t,
-    l_len: off_t,
-    l_pid: pid_t,
+    start: off_t,
+    len: off_t,
+    pid: pid_t,
     __unused: [4]u8,
 };
 
+pub const msghdr = extern struct {
+    name: ?*sockaddr,
+    namelen: socklen_t,
+    iov: [*]iovec,
+    iovlen: i32,
+    control: ?*anyopaque,
+    controllen: socklen_t,
+    flags: i32,
+};
+
+pub const msghdr_const = extern struct {
+    name: ?*const sockaddr,
+    namelen: socklen_t,
+    iov: [*]const iovec_const,
+    iovlen: i32,
+    control: ?*const anyopaque,
+    controllen: socklen_t,
+    flags: i32,
+};
+
 pub const blksize_t = i32;
 pub const nlink_t = u32;
 pub const time_t = i32;
diff --git a/lib/std/os/linux/powerpc.zig b/lib/std/os/linux/powerpc.zig
index f5ef42680b..d0601f858b 100644
--- a/lib/std/os/linux/powerpc.zig
+++ b/lib/std/os/linux/powerpc.zig
@@ -1,9 +1,10 @@
 const std = @import("../../std.zig");
 const maxInt = std.math.maxInt;
 const linux = std.os.linux;
+const SYS = linux.SYS;
 const socklen_t = linux.socklen_t;
-const iovec = linux.iovec;
-const iovec_const = linux.iovec_const;
+const iovec = std.os.iovec;
+const iovec_const = std.os.iovec_const;
 const uid_t = linux.uid_t;
 const gid_t = linux.gid_t;
 const pid_t = linux.pid_t;
@@ -125,8 +126,13 @@ pub fn syscall6(
     );
 }
 
+const CloneFn = switch (@import("builtin").zig_backend) {
+    .stage1 => fn (arg: usize) callconv(.C) u8,
+    else => *const fn (arg: usize) callconv(.C) u8,
+};
+
 /// This matches the libc clone function.
-pub extern fn clone(func: fn (arg: usize) callconv(.C) u8, stack: usize, flags: usize, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
+pub extern fn clone(func: CloneFn, stack: usize, flags: usize, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
 
 pub const restore = restore_rt;
 
@@ -138,436 +144,6 @@ pub fn restore_rt() callconv(.Naked) void {
     );
 }
 
-pub const SYS = enum(usize) {
-    restart_syscall = 0,
-    exit = 1,
-    fork = 2,
-    read = 3,
-    write = 4,
-    open = 5,
-    close = 6,
-    waitpid = 7,
-    creat = 8,
-    link = 9,
-    unlink = 10,
-    execve = 11,
-    chdir = 12,
-    time = 13,
-    mknod = 14,
-    chmod = 15,
-    lchown = 16,
-    @"break" = 17,
-    oldstat = 18,
-    lseek = 19,
-    getpid = 20,
-    mount = 21,
-    umount = 22,
-    setuid = 23,
-    getuid = 24,
-    stime = 25,
-    ptrace = 26,
-    alarm = 27,
-    oldfstat = 28,
-    pause = 29,
-    utime = 30,
-    stty = 31,
-    gtty = 32,
-    access = 33,
-    nice = 34,
-    ftime = 35,
-    sync = 36,
-    kill = 37,
-    rename = 38,
-    mkdir = 39,
-    rmdir = 40,
-    dup = 41,
-    pipe = 42,
-    times = 43,
-    prof = 44,
-    brk = 45,
-    setgid = 46,
-    getgid = 47,
-    signal = 48,
-    geteuid = 49,
-    getegid = 50,
-    acct = 51,
-    umount2 = 52,
-    lock = 53,
-    ioctl = 54,
-    fcntl = 55,
-    mpx = 56,
-    setpgid = 57,
-    ulimit = 58,
-    oldolduname = 59,
-    umask = 60,
-    chroot = 61,
-    ustat = 62,
-    dup2 = 63,
-    getppid = 64,
-    getpgrp = 65,
-    setsid = 66,
-    sigaction = 67,
-    sgetmask = 68,
-    ssetmask = 69,
-    setreuid = 70,
-    setregid = 71,
-    sigsuspend = 72,
-    sigpending = 73,
-    sethostname = 74,
-    setrlimit = 75,
-    getrlimit = 76,
-    getrusage = 77,
-    gettimeofday = 78,
-    settimeofday = 79,
-    getgroups = 80,
-    setgroups = 81,
-    select = 82,
-    symlink = 83,
-    oldlstat = 84,
-    readlink = 85,
-    uselib = 86,
-    swapon = 87,
-    reboot = 88,
-    readdir = 89,
-    mmap = 90,
-    munmap = 91,
-    truncate = 92,
-    ftruncate = 93,
-    fchmod = 94,
-    fchown = 95,
-    getpriority = 96,
-    setpriority = 97,
-    profil = 98,
-    statfs = 99,
-    fstatfs = 100,
-    ioperm = 101,
-    socketcall = 102,
-    syslog = 103,
-    setitimer = 104,
-    getitimer = 105,
-    stat = 106,
-    lstat = 107,
-    fstat = 108,
-    olduname = 109,
-    iopl = 110,
-    vhangup = 111,
-    idle = 112,
-    vm86 = 113,
-    wait4 = 114,
-    swapoff = 115,
-    sysinfo = 116,
-    ipc = 117,
-    fsync = 118,
-    sigreturn = 119,
-    clone = 120,
-    setdomainname = 121,
-    uname = 122,
-    modify_ldt = 123,
-    adjtimex = 124,
-    mprotect = 125,
-    sigprocmask = 126,
-    create_module = 127,
-    init_module = 128,
-    delete_module = 129,
-    get_kernel_syms = 130,
-    quotactl = 131,
-    getpgid = 132,
-    fchdir = 133,
-    bdflush = 134,
-    sysfs = 135,
-    personality = 136,
-    afs_syscall = 137,
-    setfsuid = 138,
-    setfsgid = 139,
-    _llseek = 140,
-    getdents = 141,
-    _newselect = 142,
-    flock = 143,
-    msync = 144,
-    readv = 145,
-    writev = 146,
-    getsid = 147,
-    fdatasync = 148,
-    _sysctl = 149,
-    mlock = 150,
-    munlock = 151,
-    mlockall = 152,
-    munlockall = 153,
-    sched_setparam = 154,
-    sched_getparam = 155,
-    sched_setscheduler = 156,
-    sched_getscheduler = 157,
-    sched_yield = 158,
-    sched_get_priority_max = 159,
-    sched_get_priority_min = 160,
-    sched_rr_get_interval = 161,
-    nanosleep = 162,
-    mremap = 163,
-    setresuid = 164,
-    getresuid = 165,
-    query_module = 166,
-    poll = 167,
-    nfsservctl = 168,
-    setresgid = 169,
-    getresgid = 170,
-    prctl = 171,
-    rt_sigreturn = 172,
-    rt_sigaction = 173,
-    rt_sigprocmask = 174,
-    rt_sigpending = 175,
-    rt_sigtimedwait = 176,
-    rt_sigqueueinfo = 177,
-    rt_sigsuspend = 178,
-    pread64 = 179,
-    pwrite64 = 180,
-    chown = 181,
-    getcwd = 182,
-    capget = 183,
-    capset = 184,
-    sigaltstack = 185,
-    sendfile = 186,
-    getpmsg = 187,
-    putpmsg = 188,
-    vfork = 189,
-    ugetrlimit = 190,
-    readahead = 191,
-    mmap2 = 192,
-    truncate64 = 193,
-    ftruncate64 = 194,
-    stat64 = 195,
-    lstat64 = 196,
-    fstat64 = 197,
-    pciconfig_read = 198,
-    pciconfig_write = 199,
-    pciconfig_iobase = 200,
-    multiplexer = 201,
-    getdents64 = 202,
-    pivot_root = 203,
-    fcntl64 = 204,
-    madvise = 205,
-    mincore = 206,
-    gettid = 207,
-    tkill = 208,
-    setxattr = 209,
-    lsetxattr = 210,
-    fsetxattr = 211,
-    getxattr = 212,
-    lgetxattr = 213,
-    fgetxattr = 214,
-    listxattr = 215,
-    llistxattr = 216,
-    flistxattr = 217,
-    removexattr = 218,
-    lremovexattr = 219,
-    fremovexattr = 220,
-    futex = 221,
-    sched_setaffinity = 222,
-    sched_getaffinity = 223,
-    tuxcall = 225,
-    sendfile64 = 226,
-    io_setup = 227,
-    io_destroy = 228,
-    io_getevents = 229,
-    io_submit = 230,
-    io_cancel = 231,
-    set_tid_address = 232,
-    fadvise64 = 233,
-    exit_group = 234,
-    lookup_dcookie = 235,
-    epoll_create = 236,
-    epoll_ctl = 237,
-    epoll_wait = 238,
-    remap_file_pages = 239,
-    timer_create = 240,
-    timer_settime = 241,
-    timer_gettime = 242,
-    timer_getoverrun = 243,
-    timer_delete = 244,
-    clock_settime = 245,
-    clock_gettime = 246,
-    clock_getres = 247,
-    clock_nanosleep = 248,
-    swapcontext = 249,
-    tgkill = 250,
-    utimes = 251,
-    statfs64 = 252,
-    fstatfs64 = 253,
-    fadvise64_64 = 254,
-    rtas = 255,
-    sys_debug_setcontext = 256,
-    migrate_pages = 258,
-    mbind = 259,
-    get_mempolicy = 260,
-    set_mempolicy = 261,
-    mq_open = 262,
-    mq_unlink = 263,
-    mq_timedsend = 264,
-    mq_timedreceive = 265,
-    mq_notify = 266,
-    mq_getsetattr = 267,
-    kexec_load = 268,
-    add_key = 269,
-    request_key = 270,
-    keyctl = 271,
-    waitid = 272,
-    ioprio_set = 273,
-    ioprio_get = 274,
-    inotify_init = 275,
-    inotify_add_watch = 276,
-    inotify_rm_watch = 277,
-    spu_run = 278,
-    spu_create = 279,
-    pselect6 = 280,
-    ppoll = 281,
-    unshare = 282,
-    splice = 283,
-    tee = 284,
-    vmsplice = 285,
-    openat = 286,
-    mkdirat = 287,
-    mknodat = 288,
-    fchownat = 289,
-    futimesat = 290,
-    fstatat64 = 291,
-    unlinkat = 292,
-    renameat = 293,
-    linkat = 294,
-    symlinkat = 295,
-    readlinkat = 296,
-    fchmodat = 297,
-    faccessat = 298,
-    get_robust_list = 299,
-    set_robust_list = 300,
-    move_pages = 301,
-    getcpu = 302,
-    epoll_pwait = 303,
-    utimensat = 304,
-    signalfd = 305,
-    timerfd_create = 306,
-    eventfd = 307,
-    sync_file_range = 308,
-    fallocate = 309,
-    subpage_prot = 310,
-    timerfd_settime = 311,
-    timerfd_gettime = 312,
-    signalfd4 = 313,
-    eventfd2 = 314,
-    epoll_create1 = 315,
-    dup3 = 316,
-    pipe2 = 317,
-    inotify_init1 = 318,
-    perf_event_open = 319,
-    preadv = 320,
-    pwritev = 321,
-    rt_tgsigqueueinfo = 322,
-    fanotify_init = 323,
-    fanotify_mark = 324,
-    prlimit64 = 325,
-    socket = 326,
-    bind = 327,
-    connect = 328,
-    listen = 329,
-    accept = 330,
-    getsockname = 331,
-    getpeername = 332,
-    socketpair = 333,
-    send = 334,
-    sendto = 335,
-    recv = 336,
-    recvfrom = 337,
-    shutdown = 338,
-    setsockopt = 339,
-    getsockopt = 340,
-    sendmsg = 341,
-    recvmsg = 342,
-    recvmmsg = 343,
-    accept4 = 344,
-    name_to_handle_at = 345,
-    open_by_handle_at = 346,
-    clock_adjtime = 347,
-    syncfs = 348,
-    sendmmsg = 349,
-    setns = 350,
-    process_vm_readv = 351,
-    process_vm_writev = 352,
-    finit_module = 353,
-    kcmp = 354,
-    sched_setattr = 355,
-    sched_getattr = 356,
-    renameat2 = 357,
-    seccomp = 358,
-    getrandom = 359,
-    memfd_create = 360,
-    bpf = 361,
-    execveat = 362,
-    switch_endian = 363,
-    userfaultfd = 364,
-    membarrier = 365,
-    mlock2 = 378,
-    copy_file_range = 379,
-    preadv2 = 380,
-    pwritev2 = 381,
-    kexec_file_load = 382,
-    statx = 383,
-    pkey_alloc = 384,
-    pkey_free = 385,
-    pkey_mprotect = 386,
-    rseq = 387,
-    io_pgetevents = 388,
-    semget = 393,
-    semctl = 394,
-    shmget = 395,
-    shmctl = 396,
-    shmat = 397,
-    shmdt = 398,
-    msgget = 399,
-    msgsnd = 400,
-    msgrcv = 401,
-    msgctl = 402,
-    clock_gettime64 = 403,
-    clock_settime64 = 404,
-    clock_adjtime64 = 405,
-    clock_getres_time64 = 406,
-    clock_nanosleep_time64 = 407,
-    timer_gettime64 = 408,
-    timer_settime64 = 409,
-    timerfd_gettime64 = 410,
-    timerfd_settime64 = 411,
-    utimensat_time64 = 412,
-    pselect6_time64 = 413,
-    ppoll_time64 = 414,
-    io_pgetevents_time64 = 416,
-    recvmmsg_time64 = 417,
-    mq_timedsend_time64 = 418,
-    mq_timedreceive_time64 = 419,
-    semtimedop_time64 = 420,
-    rt_sigtimedwait_time64 = 421,
-    futex_time64 = 422,
-    sched_rr_get_interval_time64 = 423,
-    pidfd_send_signal = 424,
-    io_uring_setup = 425,
-    io_uring_enter = 426,
-    io_uring_register = 427,
-    open_tree = 428,
-    move_mount = 429,
-    fsopen = 430,
-    fsconfig = 431,
-    fsmount = 432,
-    fspick = 433,
-    pidfd_open = 434,
-    clone3 = 435,
-    close_range = 436,
-    openat2 = 437,
-    pidfd_getfd = 438,
-    faccessat2 = 439,
-    process_madvise = 440,
-    epoll_pwait2 = 441,
-    mount_setattr = 442,
-    landlock_create_ruleset = 444,
-    landlock_add_rule = 445,
-    landlock_restrict_self = 446,
-};
-
 pub const O = struct {
     pub const CREAT = 0o100;
     pub const EXCL = 0o200;
@@ -643,31 +219,31 @@ pub const VDSO = struct {
 };
 
 pub const Flock = extern struct {
-    l_type: i16,
-    l_whence: i16,
-    l_start: off_t,
-    l_len: off_t,
-    l_pid: pid_t,
+    type: i16,
+    whence: i16,
+    start: off_t,
+    len: off_t,
+    pid: pid_t,
 };
 
 pub const msghdr = extern struct {
-    msg_name: ?*sockaddr,
-    msg_namelen: socklen_t,
-    msg_iov: [*]iovec,
-    msg_iovlen: usize,
-    msg_control: ?*anyopaque,
-    msg_controllen: socklen_t,
-    msg_flags: i32,
+    name: ?*sockaddr,
+    namelen: socklen_t,
+    iov: [*]iovec,
+    iovlen: usize,
+    control: ?*anyopaque,
+    controllen: socklen_t,
+    flags: i32,
 };
 
 pub const msghdr_const = extern struct {
-    msg_name: ?*const sockaddr,
-    msg_namelen: socklen_t,
-    msg_iov: [*]iovec_const,
-    msg_iovlen: usize,
-    msg_control: ?*anyopaque,
-    msg_controllen: socklen_t,
-    msg_flags: i32,
+    name: ?*const sockaddr,
+    namelen: socklen_t,
+    iov: [*]const iovec_const,
+    iovlen: usize,
+    control: ?*const anyopaque,
+    controllen: socklen_t,
+    flags: i32,
 };
 
 pub const blksize_t = i32;
@@ -740,7 +316,7 @@ pub const mcontext_t = extern struct {
 
 pub const ucontext_t = extern struct {
     flags: u32,
-    link: *ucontext_t,
+    link: ?*ucontext_t,
     stack: stack_t,
     pad: [7]i32,
     regs: *mcontext_t,
diff --git a/lib/std/os/linux/powerpc64.zig b/lib/std/os/linux/powerpc64.zig
index 165ca848c6..329674cd72 100644
--- a/lib/std/os/linux/powerpc64.zig
+++ b/lib/std/os/linux/powerpc64.zig
@@ -1,9 +1,10 @@
 const std = @import("../../std.zig");
 const maxInt = std.math.maxInt;
 const linux = std.os.linux;
+const SYS = linux.SYS;
 const socklen_t = linux.socklen_t;
-const iovec = linux.iovec;
-const iovec_const = linux.iovec_const;
+const iovec = std.os.iovec;
+const iovec_const = std.os.iovec_const;
 const uid_t = linux.uid_t;
 const gid_t = linux.gid_t;
 const pid_t = linux.pid_t;
@@ -125,8 +126,13 @@ pub fn syscall6(
     );
 }
 
+const CloneFn = switch (@import("builtin").zig_backend) {
+    .stage1 => fn (arg: usize) callconv(.C) u8,
+    else => *const fn (arg: usize) callconv(.C) u8,
+};
+
 /// This matches the libc clone function.
-pub extern fn clone(func: fn (arg: usize) callconv(.C) u8, stack: usize, flags: usize, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
+pub extern fn clone(func: CloneFn, stack: usize, flags: usize, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
 
 pub const restore = restore_rt;
 
@@ -138,410 +144,6 @@ pub fn restore_rt() callconv(.Naked) void {
     );
 }
 
-pub const SYS = enum(usize) {
-    restart_syscall = 0,
-    exit = 1,
-    fork = 2,
-    read = 3,
-    write = 4,
-    open = 5,
-    close = 6,
-    waitpid = 7,
-    creat = 8,
-    link = 9,
-    unlink = 10,
-    execve = 11,
-    chdir = 12,
-    time = 13,
-    mknod = 14,
-    chmod = 15,
-    lchown = 16,
-    @"break" = 17,
-    oldstat = 18,
-    lseek = 19,
-    getpid = 20,
-    mount = 21,
-    umount = 22,
-    setuid = 23,
-    getuid = 24,
-    stime = 25,
-    ptrace = 26,
-    alarm = 27,
-    oldfstat = 28,
-    pause = 29,
-    utime = 30,
-    stty = 31,
-    gtty = 32,
-    access = 33,
-    nice = 34,
-    ftime = 35,
-    sync = 36,
-    kill = 37,
-    rename = 38,
-    mkdir = 39,
-    rmdir = 40,
-    dup = 41,
-    pipe = 42,
-    times = 43,
-    prof = 44,
-    brk = 45,
-    setgid = 46,
-    getgid = 47,
-    signal = 48,
-    geteuid = 49,
-    getegid = 50,
-    acct = 51,
-    umount2 = 52,
-    lock = 53,
-    ioctl = 54,
-    fcntl = 55,
-    mpx = 56,
-    setpgid = 57,
-    ulimit = 58,
-    oldolduname = 59,
-    umask = 60,
-    chroot = 61,
-    ustat = 62,
-    dup2 = 63,
-    getppid = 64,
-    getpgrp = 65,
-    setsid = 66,
-    sigaction = 67,
-    sgetmask = 68,
-    ssetmask = 69,
-    setreuid = 70,
-    setregid = 71,
-    sigsuspend = 72,
-    sigpending = 73,
-    sethostname = 74,
-    setrlimit = 75,
-    getrlimit = 76,
-    getrusage = 77,
-    gettimeofday = 78,
-    settimeofday = 79,
-    getgroups = 80,
-    setgroups = 81,
-    select = 82,
-    symlink = 83,
-    oldlstat = 84,
-    readlink = 85,
-    uselib = 86,
-    swapon = 87,
-    reboot = 88,
-    readdir = 89,
-    mmap = 90,
-    munmap = 91,
-    truncate = 92,
-    ftruncate = 93,
-    fchmod = 94,
-    fchown = 95,
-    getpriority = 96,
-    setpriority = 97,
-    profil = 98,
-    statfs = 99,
-    fstatfs = 100,
-    ioperm = 101,
-    socketcall = 102,
-    syslog = 103,
-    setitimer = 104,
-    getitimer = 105,
-    stat = 106,
-    lstat = 107,
-    fstat = 108,
-    olduname = 109,
-    iopl = 110,
-    vhangup = 111,
-    idle = 112,
-    vm86 = 113,
-    wait4 = 114,
-    swapoff = 115,
-    sysinfo = 116,
-    ipc = 117,
-    fsync = 118,
-    sigreturn = 119,
-    clone = 120,
-    setdomainname = 121,
-    uname = 122,
-    modify_ldt = 123,
-    adjtimex = 124,
-    mprotect = 125,
-    sigprocmask = 126,
-    create_module = 127,
-    init_module = 128,
-    delete_module = 129,
-    get_kernel_syms = 130,
-    quotactl = 131,
-    getpgid = 132,
-    fchdir = 133,
-    bdflush = 134,
-    sysfs = 135,
-    personality = 136,
-    afs_syscall = 137,
-    setfsuid = 138,
-    setfsgid = 139,
-    _llseek = 140,
-    getdents = 141,
-    _newselect = 142,
-    flock = 143,
-    msync = 144,
-    readv = 145,
-    writev = 146,
-    getsid = 147,
-    fdatasync = 148,
-    _sysctl = 149,
-    mlock = 150,
-    munlock = 151,
-    mlockall = 152,
-    munlockall = 153,
-    sched_setparam = 154,
-    sched_getparam = 155,
-    sched_setscheduler = 156,
-    sched_getscheduler = 157,
-    sched_yield = 158,
-    sched_get_priority_max = 159,
-    sched_get_priority_min = 160,
-    sched_rr_get_interval = 161,
-    nanosleep = 162,
-    mremap = 163,
-    setresuid = 164,
-    getresuid = 165,
-    query_module = 166,
-    poll = 167,
-    nfsservctl = 168,
-    setresgid = 169,
-    getresgid = 170,
-    prctl = 171,
-    rt_sigreturn = 172,
-    rt_sigaction = 173,
-    rt_sigprocmask = 174,
-    rt_sigpending = 175,
-    rt_sigtimedwait = 176,
-    rt_sigqueueinfo = 177,
-    rt_sigsuspend = 178,
-    pread64 = 179,
-    pwrite64 = 180,
-    chown = 181,
-    getcwd = 182,
-    capget = 183,
-    capset = 184,
-    sigaltstack = 185,
-    sendfile = 186,
-    getpmsg = 187,
-    putpmsg = 188,
-    vfork = 189,
-    ugetrlimit = 190,
-    readahead = 191,
-    pciconfig_read = 198,
-    pciconfig_write = 199,
-    pciconfig_iobase = 200,
-    multiplexer = 201,
-    getdents64 = 202,
-    pivot_root = 203,
-    madvise = 205,
-    mincore = 206,
-    gettid = 207,
-    tkill = 208,
-    setxattr = 209,
-    lsetxattr = 210,
-    fsetxattr = 211,
-    getxattr = 212,
-    lgetxattr = 213,
-    fgetxattr = 214,
-    listxattr = 215,
-    llistxattr = 216,
-    flistxattr = 217,
-    removexattr = 218,
-    lremovexattr = 219,
-    fremovexattr = 220,
-    futex = 221,
-    sched_setaffinity = 222,
-    sched_getaffinity = 223,
-    tuxcall = 225,
-    io_setup = 227,
-    io_destroy = 228,
-    io_getevents = 229,
-    io_submit = 230,
-    io_cancel = 231,
-    set_tid_address = 232,
-    fadvise64 = 233,
-    exit_group = 234,
-    lookup_dcookie = 235,
-    epoll_create = 236,
-    epoll_ctl = 237,
-    epoll_wait = 238,
-    remap_file_pages = 239,
-    timer_create = 240,
-    timer_settime = 241,
-    timer_gettime = 242,
-    timer_getoverrun = 243,
-    timer_delete = 244,
-    clock_settime = 245,
-    clock_gettime = 246,
-    clock_getres = 247,
-    clock_nanosleep = 248,
-    swapcontext = 249,
-    tgkill = 250,
-    utimes = 251,
-    statfs64 = 252,
-    fstatfs64 = 253,
-    rtas = 255,
-    sys_debug_setcontext = 256,
-    migrate_pages = 258,
-    mbind = 259,
-    get_mempolicy = 260,
-    set_mempolicy = 261,
-    mq_open = 262,
-    mq_unlink = 263,
-    mq_timedsend = 264,
-    mq_timedreceive = 265,
-    mq_notify = 266,
-    mq_getsetattr = 267,
-    kexec_load = 268,
-    add_key = 269,
-    request_key = 270,
-    keyctl = 271,
-    waitid = 272,
-    ioprio_set = 273,
-    ioprio_get = 274,
-    inotify_init = 275,
-    inotify_add_watch = 276,
-    inotify_rm_watch = 277,
-    spu_run = 278,
-    spu_create = 279,
-    pselect6 = 280,
-    ppoll = 281,
-    unshare = 282,
-    splice = 283,
-    tee = 284,
-    vmsplice = 285,
-    openat = 286,
-    mkdirat = 287,
-    mknodat = 288,
-    fchownat = 289,
-    futimesat = 290,
-    fstatat = 291,
-    unlinkat = 292,
-    renameat = 293,
-    linkat = 294,
-    symlinkat = 295,
-    readlinkat = 296,
-    fchmodat = 297,
-    faccessat = 298,
-    get_robust_list = 299,
-    set_robust_list = 300,
-    move_pages = 301,
-    getcpu = 302,
-    epoll_pwait = 303,
-    utimensat = 304,
-    signalfd = 305,
-    timerfd_create = 306,
-    eventfd = 307,
-    sync_file_range = 308,
-    fallocate = 309,
-    subpage_prot = 310,
-    timerfd_settime = 311,
-    timerfd_gettime = 312,
-    signalfd4 = 313,
-    eventfd2 = 314,
-    epoll_create1 = 315,
-    dup3 = 316,
-    pipe2 = 317,
-    inotify_init1 = 318,
-    perf_event_open = 319,
-    preadv = 320,
-    pwritev = 321,
-    rt_tgsigqueueinfo = 322,
-    fanotify_init = 323,
-    fanotify_mark = 324,
-    prlimit64 = 325,
-    socket = 326,
-    bind = 327,
-    connect = 328,
-    listen = 329,
-    accept = 330,
-    getsockname = 331,
-    getpeername = 332,
-    socketpair = 333,
-    send = 334,
-    sendto = 335,
-    recv = 336,
-    recvfrom = 337,
-    shutdown = 338,
-    setsockopt = 339,
-    getsockopt = 340,
-    sendmsg = 341,
-    recvmsg = 342,
-    recvmmsg = 343,
-    accept4 = 344,
-    name_to_handle_at = 345,
-    open_by_handle_at = 346,
-    clock_adjtime = 347,
-    syncfs = 348,
-    sendmmsg = 349,
-    setns = 350,
-    process_vm_readv = 351,
-    process_vm_writev = 352,
-    finit_module = 353,
-    kcmp = 354,
-    sched_setattr = 355,
-    sched_getattr = 356,
-    renameat2 = 357,
-    seccomp = 358,
-    getrandom = 359,
-    memfd_create = 360,
-    bpf = 361,
-    execveat = 362,
-    switch_endian = 363,
-    userfaultfd = 364,
-    membarrier = 365,
-    mlock2 = 378,
-    copy_file_range = 379,
-    preadv2 = 380,
-    pwritev2 = 381,
-    kexec_file_load = 382,
-    statx = 383,
-    pkey_alloc = 384,
-    pkey_free = 385,
-    pkey_mprotect = 386,
-    rseq = 387,
-    io_pgetevents = 388,
-    semtimedop = 392,
-    semget = 393,
-    semctl = 394,
-    shmget = 395,
-    shmctl = 396,
-    shmat = 397,
-    shmdt = 398,
-    msgget = 399,
-    msgsnd = 400,
-    msgrcv = 401,
-    msgctl = 402,
-    pidfd_send_signal = 424,
-    io_uring_setup = 425,
-    io_uring_enter = 426,
-    io_uring_register = 427,
-    open_tree = 428,
-    move_mount = 429,
-    fsopen = 430,
-    fsconfig = 431,
-    fsmount = 432,
-    fspick = 433,
-    pidfd_open = 434,
-    clone3 = 435,
-    close_range = 436,
-    openat2 = 437,
-    pidfd_getfd = 438,
-    faccessat2 = 439,
-    process_madvise = 440,
-    epoll_pwait2 = 441,
-    mount_setattr = 442,
-    landlock_create_ruleset = 444,
-    landlock_add_rule = 445,
-    landlock_restrict_self = 446,
-
-    _,
-};
-
 pub const O = struct {
     pub const CREAT = 0o100;
     pub const EXCL = 0o200;
@@ -617,32 +219,32 @@ pub const VDSO = struct {
 };
 
 pub const Flock = extern struct {
-    l_type: i16,
-    l_whence: i16,
-    l_start: off_t,
-    l_len: off_t,
-    l_pid: pid_t,
+    type: i16,
+    whence: i16,
+    start: off_t,
+    len: off_t,
+    pid: pid_t,
     __unused: [4]u8,
 };
 
 pub const msghdr = extern struct {
-    msg_name: ?*sockaddr,
-    msg_namelen: socklen_t,
-    msg_iov: [*]iovec,
-    msg_iovlen: usize,
-    msg_control: ?*anyopaque,
-    msg_controllen: usize,
-    msg_flags: i32,
+    name: ?*sockaddr,
+    namelen: socklen_t,
+    iov: [*]iovec,
+    iovlen: usize,
+    control: ?*anyopaque,
+    controllen: usize,
+    flags: i32,
 };
 
 pub const msghdr_const = extern struct {
-    msg_name: ?*const sockaddr,
-    msg_namelen: socklen_t,
-    msg_iov: [*]iovec_const,
-    msg_iovlen: usize,
-    msg_control: ?*anyopaque,
-    msg_controllen: usize,
-    msg_flags: i32,
+    name: ?*const sockaddr,
+    namelen: socklen_t,
+    iov: [*]const iovec_const,
+    iovlen: usize,
+    control: ?*const anyopaque,
+    controllen: usize,
+    flags: i32,
 };
 
 pub const blksize_t = i64;
@@ -727,7 +329,7 @@ pub const mcontext_t = extern struct {
 
 pub const ucontext_t = extern struct {
     flags: u32,
-    link: *ucontext_t,
+    link: ?*ucontext_t,
     stack: stack_t,
     sigmask: sigset_t,
     mcontext: mcontext_t,
diff --git a/lib/std/os/linux/riscv64.zig b/lib/std/os/linux/riscv64.zig
index 75505442c0..dbf22e0aa4 100644
--- a/lib/std/os/linux/riscv64.zig
+++ b/lib/std/os/linux/riscv64.zig
@@ -1,7 +1,13 @@
 const std = @import("../../std.zig");
+const iovec = std.os.iovec;
+const iovec_const = std.os.iovec_const;
+const linux = std.os.linux;
+const SYS = linux.SYS;
 const uid_t = std.os.linux.uid_t;
 const gid_t = std.os.linux.gid_t;
 const pid_t = std.os.linux.pid_t;
+const sockaddr = linux.sockaddr;
+const socklen_t = linux.socklen_t;
 const timespec = std.os.linux.timespec;
 
 pub fn syscall0(number: SYS) usize {
@@ -89,7 +95,12 @@ pub fn syscall6(
     );
 }
 
-pub extern fn clone(func: fn (arg: usize) callconv(.C) u8, stack: usize, flags: u32, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
+const CloneFn = switch (@import("builtin").zig_backend) {
+    .stage1 => fn (arg: usize) callconv(.C) u8,
+    else => *const fn (arg: usize) callconv(.C) u8,
+};
+
+pub extern fn clone(func: CloneFn, stack: usize, flags: u32, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
 
 pub const restore = restore_rt;
 
@@ -101,316 +112,6 @@ pub fn restore_rt() callconv(.Naked) void {
     );
 }
 
-pub const SYS = enum(usize) {
-    pub const arch_specific_syscall = 244;
-
-    io_setup = 0,
-    io_destroy = 1,
-    io_submit = 2,
-    io_cancel = 3,
-    io_getevents = 4,
-    setxattr = 5,
-    lsetxattr = 6,
-    fsetxattr = 7,
-    getxattr = 8,
-    lgetxattr = 9,
-    fgetxattr = 10,
-    listxattr = 11,
-    llistxattr = 12,
-    flistxattr = 13,
-    removexattr = 14,
-    lremovexattr = 15,
-    fremovexattr = 16,
-    getcwd = 17,
-    lookup_dcookie = 18,
-    eventfd2 = 19,
-    epoll_create1 = 20,
-    epoll_ctl = 21,
-    epoll_pwait = 22,
-    dup = 23,
-    dup3 = 24,
-    fcntl = 25,
-    inotify_init1 = 26,
-    inotify_add_watch = 27,
-    inotify_rm_watch = 28,
-    ioctl = 29,
-    ioprio_set = 30,
-    ioprio_get = 31,
-    flock = 32,
-    mknodat = 33,
-    mkdirat = 34,
-    unlinkat = 35,
-    symlinkat = 36,
-    linkat = 37,
-    umount2 = 39,
-    mount = 40,
-    pivot_root = 41,
-    nfsservctl = 42,
-    statfs = 43,
-    fstatfs = 44,
-    truncate = 45,
-    ftruncate = 46,
-    fallocate = 47,
-    faccessat = 48,
-    chdir = 49,
-    fchdir = 50,
-    chroot = 51,
-    fchmod = 52,
-    fchmodat = 53,
-    fchownat = 54,
-    fchown = 55,
-    openat = 56,
-    close = 57,
-    vhangup = 58,
-    pipe2 = 59,
-    quotactl = 60,
-    getdents64 = 61,
-    lseek = 62,
-    read = 63,
-    write = 64,
-    readv = 65,
-    writev = 66,
-    pread64 = 67,
-    pwrite64 = 68,
-    preadv = 69,
-    pwritev = 70,
-    sendfile = 71,
-    pselect6 = 72,
-    ppoll = 73,
-    signalfd4 = 74,
-    vmsplice = 75,
-    splice = 76,
-    tee = 77,
-    readlinkat = 78,
-    fstatat = 79,
-    fstat = 80,
-    sync = 81,
-    fsync = 82,
-    fdatasync = 83,
-    sync_file_range = 84,
-    timerfd_create = 85,
-    timerfd_settime = 86,
-    timerfd_gettime = 87,
-    utimensat = 88,
-    acct = 89,
-    capget = 90,
-    capset = 91,
-    personality = 92,
-    exit = 93,
-    exit_group = 94,
-    waitid = 95,
-    set_tid_address = 96,
-    unshare = 97,
-    futex = 98,
-    set_robust_list = 99,
-    get_robust_list = 100,
-    nanosleep = 101,
-    getitimer = 102,
-    setitimer = 103,
-    kexec_load = 104,
-    init_module = 105,
-    delete_module = 106,
-    timer_create = 107,
-    timer_gettime = 108,
-    timer_getoverrun = 109,
-    timer_settime = 110,
-    timer_delete = 111,
-    clock_settime = 112,
-    clock_gettime = 113,
-    clock_getres = 114,
-    clock_nanosleep = 115,
-    syslog = 116,
-    ptrace = 117,
-    sched_setparam = 118,
-    sched_setscheduler = 119,
-    sched_getscheduler = 120,
-    sched_getparam = 121,
-    sched_setaffinity = 122,
-    sched_getaffinity = 123,
-    sched_yield = 124,
-    sched_get_priority_max = 125,
-    sched_get_priority_min = 126,
-    sched_rr_get_interval = 127,
-    restart_syscall = 128,
-    kill = 129,
-    tkill = 130,
-    tgkill = 131,
-    sigaltstack = 132,
-    rt_sigsuspend = 133,
-    rt_sigaction = 134,
-    rt_sigprocmask = 135,
-    rt_sigpending = 136,
-    rt_sigtimedwait = 137,
-    rt_sigqueueinfo = 138,
-    rt_sigreturn = 139,
-    setpriority = 140,
-    getpriority = 141,
-    reboot = 142,
-    setregid = 143,
-    setgid = 144,
-    setreuid = 145,
-    setuid = 146,
-    setresuid = 147,
-    getresuid = 148,
-    setresgid = 149,
-    getresgid = 150,
-    setfsuid = 151,
-    setfsgid = 152,
-    times = 153,
-    setpgid = 154,
-    getpgid = 155,
-    getsid = 156,
-    setsid = 157,
-    getgroups = 158,
-    setgroups = 159,
-    uname = 160,
-    sethostname = 161,
-    setdomainname = 162,
-    getrlimit = 163,
-    setrlimit = 164,
-    getrusage = 165,
-    umask = 166,
-    prctl = 167,
-    getcpu = 168,
-    gettimeofday = 169,
-    settimeofday = 170,
-    adjtimex = 171,
-    getpid = 172,
-    getppid = 173,
-    getuid = 174,
-    geteuid = 175,
-    getgid = 176,
-    getegid = 177,
-    gettid = 178,
-    sysinfo = 179,
-    mq_open = 180,
-    mq_unlink = 181,
-    mq_timedsend = 182,
-    mq_timedreceive = 183,
-    mq_notify = 184,
-    mq_getsetattr = 185,
-    msgget = 186,
-    msgctl = 187,
-    msgrcv = 188,
-    msgsnd = 189,
-    semget = 190,
-    semctl = 191,
-    semtimedop = 192,
-    semop = 193,
-    shmget = 194,
-    shmctl = 195,
-    shmat = 196,
-    shmdt = 197,
-    socket = 198,
-    socketpair = 199,
-    bind = 200,
-    listen = 201,
-    accept = 202,
-    connect = 203,
-    getsockname = 204,
-    getpeername = 205,
-    sendto = 206,
-    recvfrom = 207,
-    setsockopt = 208,
-    getsockopt = 209,
-    shutdown = 210,
-    sendmsg = 211,
-    recvmsg = 212,
-    readahead = 213,
-    brk = 214,
-    munmap = 215,
-    mremap = 216,
-    add_key = 217,
-    request_key = 218,
-    keyctl = 219,
-    clone = 220,
-    execve = 221,
-    mmap = 222,
-    fadvise64 = 223,
-    swapon = 224,
-    swapoff = 225,
-    mprotect = 226,
-    msync = 227,
-    mlock = 228,
-    munlock = 229,
-    mlockall = 230,
-    munlockall = 231,
-    mincore = 232,
-    madvise = 233,
-    remap_file_pages = 234,
-    mbind = 235,
-    get_mempolicy = 236,
-    set_mempolicy = 237,
-    migrate_pages = 238,
-    move_pages = 239,
-    rt_tgsigqueueinfo = 240,
-    perf_event_open = 241,
-    accept4 = 242,
-    recvmmsg = 243,
-
-    riscv_flush_icache = arch_specific_syscall + 15,
-
-    wait4 = 260,
-    prlimit64 = 261,
-    fanotify_init = 262,
-    fanotify_mark = 263,
-    name_to_handle_at = 264,
-    open_by_handle_at = 265,
-    clock_adjtime = 266,
-    syncfs = 267,
-    setns = 268,
-    sendmmsg = 269,
-    process_vm_readv = 270,
-    process_vm_writev = 271,
-    kcmp = 272,
-    finit_module = 273,
-    sched_setattr = 274,
-    sched_getattr = 275,
-    renameat2 = 276,
-    seccomp = 277,
-    getrandom = 278,
-    memfd_create = 279,
-    bpf = 280,
-    execveat = 281,
-    userfaultfd = 282,
-    membarrier = 283,
-    mlock2 = 284,
-    copy_file_range = 285,
-    preadv2 = 286,
-    pwritev2 = 287,
-    pkey_mprotect = 288,
-    pkey_alloc = 289,
-    pkey_free = 290,
-    statx = 291,
-    io_pgetevents = 292,
-    rseq = 293,
-    kexec_file_load = 294,
-    pidfd_send_signal = 424,
-    io_uring_setup = 425,
-    io_uring_enter = 426,
-    io_uring_register = 427,
-    open_tree = 428,
-    move_mount = 429,
-    fsopen = 430,
-    fsconfig = 431,
-    fsmount = 432,
-    fspick = 433,
-    pidfd_open = 434,
-    clone3 = 435,
-    close_range = 436,
-    openat2 = 437,
-    pidfd_getfd = 438,
-    faccessat2 = 439,
-    process_madvise = 440,
-    epoll_pwait2 = 441,
-    mount_setattr = 442,
-    landlock_create_ruleset = 444,
-    landlock_add_rule = 445,
-    landlock_restrict_self = 446,
-
-    _,
-};
-
 pub const O = struct {
     pub const CREAT = 0o100;
     pub const EXCL = 0o200;
@@ -480,14 +181,38 @@ pub const timeval = extern struct {
 };
 
 pub const Flock = extern struct {
-    l_type: i16,
-    l_whence: i16,
-    l_start: off_t,
-    l_len: off_t,
-    l_pid: pid_t,
+    type: i16,
+    whence: i16,
+    start: off_t,
+    len: off_t,
+    pid: pid_t,
     __unused: [4]u8,
 };
 
+pub const msghdr = extern struct {
+    name: ?*sockaddr,
+    namelen: socklen_t,
+    iov: [*]iovec,
+    iovlen: i32,
+    __pad1: i32 = 0,
+    control: ?*anyopaque,
+    controllen: socklen_t,
+    __pad2: socklen_t = 0,
+    flags: i32,
+};
+
+pub const msghdr_const = extern struct {
+    name: ?*const sockaddr,
+    namelen: socklen_t,
+    iov: [*]const iovec_const,
+    iovlen: i32,
+    __pad1: i32 = 0,
+    control: ?*const anyopaque,
+    controllen: socklen_t,
+    __pad2: socklen_t = 0,
+    flags: i32,
+};
+
 // The `stat` definition used by the Linux kernel.
 pub const Stat = extern struct {
     dev: dev_t,
diff --git a/lib/std/os/linux/seccomp.zig b/lib/std/os/linux/seccomp.zig
new file mode 100644
index 0000000000..fd002e7416
--- /dev/null
+++ b/lib/std/os/linux/seccomp.zig
@@ -0,0 +1,212 @@
+//! API bits for the Secure Computing facility in the Linux kernel, which allows
+//! processes to restrict access to the system call API.
+//!
+//! Seccomp started life with a single "strict" mode, which only allowed calls
+//! to read(2), write(2), _exit(2) and sigreturn(2). It turns out that this
+//! isn't that useful for general-purpose applications, and so a mode that
+//! utilizes user-supplied filters mode was added.
+//!
+//! Seccomp filters are classic BPF programs, which means that all the
+//! information under `std.x.net.bpf` applies here as well. Conceptually, a
+//! seccomp program is attached to the kernel and is executed on each syscall.
+//! The "packet" being validated is the `data` structure, and the verdict is an
+//! action that the kernel performs on the calling process. The actions are
+//! variations on a "pass" or "fail" result, where a pass allows the syscall to
+//! continue and a fail blocks the syscall and returns some sort of error value.
+//! See the full list of actions under ::RET for more information. Finally, only
+//! word-sized, absolute loads (`ld [k]`) are supported to read from the `data`
+//! structure.
+//!
+//! There are some issues with the filter API that have traditionally made
+//! writing them a pain:
+//!
+//! 1. Each CPU architecture supported by Linux has its own unique ABI and
+//!    syscall API. It is not guaranteed that the syscall numbers and arguments
+//!    are the same across architectures, or that they're even implemted. Thus,
+//!    filters cannot be assumed to be portable without consulting documentation
+//!    like syscalls(2) and testing on target hardware. This also requires
+//!    checking the value of `data.arch` to make sure that a filter was compiled
+//!    for the correct architecture.
+//! 2. Many syscalls take an `unsigned long` or `size_t` argument, the size of
+//!    which is dependant on the ABI. Since BPF programs execute in a 32-bit
+//!    machine, validation of 64-bit arguments necessitates two load-and-compare
+//!    instructions for the upper and lower words.
+//! 3. A further wrinkle to the above is endianess. Unlike network packets,
+//!    syscall data shares the endianess of the target machine. A filter
+//!    compiled on a little-endian machine will not work on a big-endian one,
+//!    and vice-versa. For example: Checking the upper 32-bits of `data.arg1`
+//!    requires a load at `@offsetOf(data, "arg1") + 4` on big-endian systems
+//!    and `@offsetOf(data, "arg1")` on little-endian systems. Endian-portable
+//!    filters require adjusting these offsets at compile time, similar to how
+//!    e.g. OpenSSH does[1].
+//! 4. Syscalls with userspace implementations via the vDSO cannot be traced or
+//!    filtered. The vDSO can be disabled or just ignored, which must be taken
+//!    into account when writing filters.
+//! 5. Software libraries -  especially dynamically loaded ones - tend to use
+//!    more of the syscall API over time, thus filters must evolve with them.
+//!    Static filters can result in reduced or even broken functionality when
+//!    calling newer code from these libraries. This is known to happen with
+//!    critical libraries like glibc[2].
+//!
+//! Some of these issues can be mitigated with help from Zig and the standard
+//! library. Since the target CPU is known at compile time, the proper syscall
+//! numbers are mixed into the `os` namespace under `std.os.SYS (see the code
+//! for `arch_bits` in `os/linux.zig`). Referencing an unimplemented syscall
+//! would be a compile error. Endian offsets can also be defined in a similar
+//! manner to the OpenSSH example:
+//!
+//! ```zig
+//! const offset = if (native_endian == .Little) struct {
+//!     pub const low = 0;
+//!     pub const high = @sizeOf(u32);
+//! } else struct {
+//!     pub const low = @sizeOf(u32);
+//!     pub const high = 0;
+//! };
+//! ```
+//!
+//! Unfortunately, there is no easy solution for issue 5. The most reliable
+//! strategy is to keep testing; test newer Zig versions, different libcs,
+//! different distros, and design your filter to accomidate all of them.
+//! Alternatively, you could inject a filter at runtime. Since filters are
+//! preserved across execve(2), a filter could be setup before executing your
+//! program, without your program having any knowledge of this happening. This
+//! is the method used by systemd[3] and Cloudflare's sandbox library[4].
+//!
+//! [1]: https://github.com/openssh/openssh-portable/blob/master/sandbox-seccomp-filter.c#L81
+//! [2]: https://sourceware.org/legacy-ml/libc-alpha/2017-11/msg00246.html
+//! [3]: https://www.freedesktop.org/software/systemd/man/systemd.exec.html#SystemCallFilter=
+//! [4]: https://github.com/cloudflare/sandbox
+//!
+//! See Also
+//! - seccomp(2), seccomp_unotify(2)
+//! - https://www.kernel.org/doc/html/latest/userspace-api/seccomp_filter.html
+const IOCTL = @import("ioctl.zig");
+
+// Modes for the prctl(2) form `prctl(PR_SET_SECCOMP, mode)`
+pub const MODE = struct {
+    /// Seccomp not in use.
+    pub const DISABLED = 0;
+    /// Uses a hard-coded filter.
+    pub const STRICT = 1;
+    /// Uses a user-supplied filter.
+    pub const FILTER = 2;
+};
+
+// Operations for the seccomp(2) form `seccomp(operation, flags, args)`
+pub const SET_MODE_STRICT = 0;
+pub const SET_MODE_FILTER = 1;
+pub const GET_ACTION_AVAIL = 2;
+pub const GET_NOTIF_SIZES = 3;
+
+/// Bitflags for the SET_MODE_FILTER operation.
+pub const FILTER_FLAG = struct {
+    pub const TSYNC = 1 << 0;
+    pub const LOG = 1 << 1;
+    pub const SPEC_ALLOW = 1 << 2;
+    pub const NEW_LISTENER = 1 << 3;
+    pub const TSYNC_ESRCH = 1 << 4;
+};
+
+/// Action values for seccomp BPF programs.
+/// The lower 16-bits are for optional return data.
+/// The upper 16-bits are ordered from least permissive values to most.
+pub const RET = struct {
+    /// Kill the process.
+    pub const KILL_PROCESS = 0x80000000;
+    /// Kill the thread.
+    pub const KILL_THREAD = 0x00000000;
+    pub const KILL = KILL_THREAD;
+    /// Disallow and force a SIGSYS.
+    pub const TRAP = 0x00030000;
+    /// Return an errno.
+    pub const ERRNO = 0x00050000;
+    /// Forward the syscall to a userspace supervisor to make a decision.
+    pub const USER_NOTIF = 0x7fc00000;
+    /// Pass to a tracer or disallow.
+    pub const TRACE = 0x7ff00000;
+    /// Allow after logging.
+    pub const LOG = 0x7ffc0000;
+    /// Allow.
+    pub const ALLOW = 0x7fff0000;
+
+    // Masks for the return value sections.
+    pub const ACTION_FULL = 0xffff0000;
+    pub const ACTION = 0x7fff0000;
+    pub const DATA = 0x0000ffff;
+};
+
+pub const IOCTL_NOTIF = struct {
+    pub const RECV = IOCTL.IOWR('!', 0, notif);
+    pub const SEND = IOCTL.IOWR('!', 1, notif_resp);
+    pub const ID_VALID = IOCTL.IOW('!', 2, u64);
+    pub const ADDFD = IOCTL.IOW('!', 3, notif_addfd);
+};
+
+/// Tells the kernel that the supervisor allows the syscall to continue.
+pub const USER_NOTIF_FLAG_CONTINUE = 1 << 0;
+
+/// See seccomp_unotify(2).
+pub const ADDFD_FLAG = struct {
+    pub const SETFD = 1 << 0;
+    pub const SEND = 1 << 1;
+};
+
+pub const data = extern struct {
+    /// The system call number.
+    nr: c_int,
+    /// The CPU architecture/system call convention.
+    /// One of the values defined in `std.os.linux.AUDIT`.
+    arch: u32,
+    instruction_pointer: u64,
+    arg0: u64,
+    arg1: u64,
+    arg2: u64,
+    arg3: u64,
+    arg4: u64,
+    arg5: u64,
+};
+
+/// Used with the ::GET_NOTIF_SIZES command to check if the kernel structures
+/// have changed.
+pub const notif_sizes = extern struct {
+    /// Size of ::notif.
+    notif: u16,
+    /// Size of ::resp.
+    notif_resp: u16,
+    /// Size of ::data.
+    data: u16,
+};
+
+pub const notif = extern struct {
+    /// Unique notification cookie for each filter.
+    id: u64,
+    /// ID of the thread that triggered the notification.
+    pid: u32,
+    /// Bitmask for event information. Currently set to zero.
+    flags: u32,
+    /// The current system call data.
+    data: data,
+};
+
+/// The decision payload the supervisor process sends to the kernel.
+pub const notif_resp = extern struct {
+    /// The filter cookie.
+    id: u64,
+    /// The return value for a spoofed syscall.
+    val: i64,
+    /// Set to zero for a spoofed success or a negative error number for a
+    /// failure.
+    @"error": i32,
+    /// Bitmask containing the decision. Either USER_NOTIF_FLAG_CONTINUE to
+    /// allow the syscall or zero to spoof the return values.
+    flags: u32,
+};
+
+pub const notif_addfd = extern struct {
+    id: u64,
+    flags: u32,
+    srcfd: u32,
+    newfd: u32,
+    newfd_flags: u32,
+};
diff --git a/lib/std/os/linux/sparc64.zig b/lib/std/os/linux/sparc64.zig
index 3ec9a67210..6e1792ae0a 100644
--- a/lib/std/os/linux/sparc64.zig
+++ b/lib/std/os/linux/sparc64.zig
@@ -7,10 +7,11 @@ const stack_t = linux.stack_t;
 const sigset_t = linux.sigset_t;
 
 const linux = std.os.linux;
+const SYS = linux.SYS;
 const sockaddr = linux.sockaddr;
 const socklen_t = linux.socklen_t;
-const iovec = linux.iovec;
-const iovec_const = linux.iovec_const;
+const iovec = std.os.iovec;
+const iovec_const = std.os.iovec_const;
 const timespec = linux.timespec;
 
 pub fn syscall_pipe(fd: *[2]i32) usize {
@@ -177,8 +178,13 @@ pub fn syscall6(
     );
 }
 
+const CloneFn = switch (@import("builtin").zig_backend) {
+    .stage1 => fn (arg: usize) callconv(.C) u8,
+    else => *const fn (arg: usize) callconv(.C) u8,
+};
+
 /// This matches the libc clone function.
-pub extern fn clone(func: fn (arg: usize) callconv(.C) u8, stack: usize, flags: usize, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
+pub extern fn clone(func: CloneFn, stack: usize, flags: usize, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
 
 pub const restore = restore_rt;
 
@@ -192,390 +198,6 @@ pub fn restore_rt() callconv(.C) void {
     );
 }
 
-pub const SYS = enum(usize) {
-    restart_syscall = 0,
-    exit = 1,
-    fork = 2,
-    read = 3,
-    write = 4,
-    open = 5,
-    close = 6,
-    wait4 = 7,
-    creat = 8,
-    link = 9,
-    unlink = 10,
-    execv = 11,
-    chdir = 12,
-    chown = 13,
-    mknod = 14,
-    chmod = 15,
-    lchown = 16,
-    brk = 17,
-    perfctr = 18,
-    lseek = 19,
-    getpid = 20,
-    capget = 21,
-    capset = 22,
-    setuid = 23,
-    getuid = 24,
-    vmsplice = 25,
-    ptrace = 26,
-    alarm = 27,
-    sigaltstack = 28,
-    pause = 29,
-    utime = 30,
-    access = 33,
-    nice = 34,
-    sync = 36,
-    kill = 37,
-    stat = 38,
-    sendfile = 39,
-    lstat = 40,
-    dup = 41,
-    pipe = 42,
-    times = 43,
-    umount2 = 45,
-    setgid = 46,
-    getgid = 47,
-    signal = 48,
-    geteuid = 49,
-    getegid = 50,
-    acct = 51,
-    memory_ordering = 52,
-    ioctl = 54,
-    reboot = 55,
-    symlink = 57,
-    readlink = 58,
-    execve = 59,
-    umask = 60,
-    chroot = 61,
-    fstat = 62,
-    fstat64 = 63,
-    getpagesize = 64,
-    msync = 65,
-    vfork = 66,
-    pread64 = 67,
-    pwrite64 = 68,
-    mmap = 71,
-    munmap = 73,
-    mprotect = 74,
-    madvise = 75,
-    vhangup = 76,
-    mincore = 78,
-    getgroups = 79,
-    setgroups = 80,
-    getpgrp = 81,
-    setitimer = 83,
-    swapon = 85,
-    getitimer = 86,
-    sethostname = 88,
-    dup2 = 90,
-    fcntl = 92,
-    select = 93,
-    fsync = 95,
-    setpriority = 96,
-    socket = 97,
-    connect = 98,
-    accept = 99,
-    getpriority = 100,
-    rt_sigreturn = 101,
-    rt_sigaction = 102,
-    rt_sigprocmask = 103,
-    rt_sigpending = 104,
-    rt_sigtimedwait = 105,
-    rt_sigqueueinfo = 106,
-    rt_sigsuspend = 107,
-    setresuid = 108,
-    getresuid = 109,
-    setresgid = 110,
-    getresgid = 111,
-    recvmsg = 113,
-    sendmsg = 114,
-    gettimeofday = 116,
-    getrusage = 117,
-    getsockopt = 118,
-    getcwd = 119,
-    readv = 120,
-    writev = 121,
-    settimeofday = 122,
-    fchown = 123,
-    fchmod = 124,
-    recvfrom = 125,
-    setreuid = 126,
-    setregid = 127,
-    rename = 128,
-    truncate = 129,
-    ftruncate = 130,
-    flock = 131,
-    lstat64 = 132,
-    sendto = 133,
-    shutdown = 134,
-    socketpair = 135,
-    mkdir = 136,
-    rmdir = 137,
-    utimes = 138,
-    stat64 = 139,
-    sendfile64 = 140,
-    getpeername = 141,
-    futex = 142,
-    gettid = 143,
-    getrlimit = 144,
-    setrlimit = 145,
-    pivot_root = 146,
-    prctl = 147,
-    pciconfig_read = 148,
-    pciconfig_write = 149,
-    getsockname = 150,
-    inotify_init = 151,
-    inotify_add_watch = 152,
-    poll = 153,
-    getdents64 = 154,
-    inotify_rm_watch = 156,
-    statfs = 157,
-    fstatfs = 158,
-    umount = 159,
-    sched_set_affinity = 160,
-    sched_get_affinity = 161,
-    getdomainname = 162,
-    setdomainname = 163,
-    utrap_install = 164,
-    quotactl = 165,
-    set_tid_address = 166,
-    mount = 167,
-    ustat = 168,
-    setxattr = 169,
-    lsetxattr = 170,
-    fsetxattr = 171,
-    getxattr = 172,
-    lgetxattr = 173,
-    getdents = 174,
-    setsid = 175,
-    fchdir = 176,
-    fgetxattr = 177,
-    listxattr = 178,
-    llistxattr = 179,
-    flistxattr = 180,
-    removexattr = 181,
-    lremovexattr = 182,
-    sigpending = 183,
-    query_module = 184,
-    setpgid = 185,
-    fremovexattr = 186,
-    tkill = 187,
-    exit_group = 188,
-    uname = 189,
-    init_module = 190,
-    personality = 191,
-    remap_file_pages = 192,
-    epoll_create = 193,
-    epoll_ctl = 194,
-    epoll_wait = 195,
-    ioprio_set = 196,
-    getppid = 197,
-    sigaction = 198,
-    sgetmask = 199,
-    ssetmask = 200,
-    sigsuspend = 201,
-    oldlstat = 202,
-    uselib = 203,
-    readdir = 204,
-    readahead = 205,
-    socketcall = 206,
-    syslog = 207,
-    lookup_dcookie = 208,
-    fadvise64 = 209,
-    fadvise64_64 = 210,
-    tgkill = 211,
-    waitpid = 212,
-    swapoff = 213,
-    sysinfo = 214,
-    ipc = 215,
-    sigreturn = 216,
-    clone = 217,
-    ioprio_get = 218,
-    adjtimex = 219,
-    sigprocmask = 220,
-    create_module = 221,
-    delete_module = 222,
-    get_kernel_syms = 223,
-    getpgid = 224,
-    bdflush = 225,
-    sysfs = 226,
-    afs_syscall = 227,
-    setfsuid = 228,
-    setfsgid = 229,
-    _newselect = 230,
-    splice = 232,
-    stime = 233,
-    statfs64 = 234,
-    fstatfs64 = 235,
-    _llseek = 236,
-    mlock = 237,
-    munlock = 238,
-    mlockall = 239,
-    munlockall = 240,
-    sched_setparam = 241,
-    sched_getparam = 242,
-    sched_setscheduler = 243,
-    sched_getscheduler = 244,
-    sched_yield = 245,
-    sched_get_priority_max = 246,
-    sched_get_priority_min = 247,
-    sched_rr_get_interval = 248,
-    nanosleep = 249,
-    mremap = 250,
-    _sysctl = 251,
-    getsid = 252,
-    fdatasync = 253,
-    nfsservctl = 254,
-    sync_file_range = 255,
-    clock_settime = 256,
-    clock_gettime = 257,
-    clock_getres = 258,
-    clock_nanosleep = 259,
-    sched_getaffinity = 260,
-    sched_setaffinity = 261,
-    timer_settime = 262,
-    timer_gettime = 263,
-    timer_getoverrun = 264,
-    timer_delete = 265,
-    timer_create = 266,
-    vserver = 267,
-    io_setup = 268,
-    io_destroy = 269,
-    io_submit = 270,
-    io_cancel = 271,
-    io_getevents = 272,
-    mq_open = 273,
-    mq_unlink = 274,
-    mq_timedsend = 275,
-    mq_timedreceive = 276,
-    mq_notify = 277,
-    mq_getsetattr = 278,
-    waitid = 279,
-    tee = 280,
-    add_key = 281,
-    request_key = 282,
-    keyctl = 283,
-    openat = 284,
-    mkdirat = 285,
-    mknodat = 286,
-    fchownat = 287,
-    futimesat = 288,
-    fstatat64 = 289,
-    unlinkat = 290,
-    renameat = 291,
-    linkat = 292,
-    symlinkat = 293,
-    readlinkat = 294,
-    fchmodat = 295,
-    faccessat = 296,
-    pselect6 = 297,
-    ppoll = 298,
-    unshare = 299,
-    set_robust_list = 300,
-    get_robust_list = 301,
-    migrate_pages = 302,
-    mbind = 303,
-    get_mempolicy = 304,
-    set_mempolicy = 305,
-    kexec_load = 306,
-    move_pages = 307,
-    getcpu = 308,
-    epoll_pwait = 309,
-    utimensat = 310,
-    signalfd = 311,
-    timerfd_create = 312,
-    eventfd = 313,
-    fallocate = 314,
-    timerfd_settime = 315,
-    timerfd_gettime = 316,
-    signalfd4 = 317,
-    eventfd2 = 318,
-    epoll_create1 = 319,
-    dup3 = 320,
-    pipe2 = 321,
-    inotify_init1 = 322,
-    accept4 = 323,
-    preadv = 324,
-    pwritev = 325,
-    rt_tgsigqueueinfo = 326,
-    perf_event_open = 327,
-    recvmmsg = 328,
-    fanotify_init = 329,
-    fanotify_mark = 330,
-    prlimit64 = 331,
-    name_to_handle_at = 332,
-    open_by_handle_at = 333,
-    clock_adjtime = 334,
-    syncfs = 335,
-    sendmmsg = 336,
-    setns = 337,
-    process_vm_readv = 338,
-    process_vm_writev = 339,
-    kern_features = 340,
-    kcmp = 341,
-    finit_module = 342,
-    sched_setattr = 343,
-    sched_getattr = 344,
-    renameat2 = 345,
-    seccomp = 346,
-    getrandom = 347,
-    memfd_create = 348,
-    bpf = 349,
-    execveat = 350,
-    membarrier = 351,
-    userfaultfd = 352,
-    bind = 353,
-    listen = 354,
-    setsockopt = 355,
-    mlock2 = 356,
-    copy_file_range = 357,
-    preadv2 = 358,
-    pwritev2 = 359,
-    statx = 360,
-    io_pgetevents = 361,
-    pkey_mprotect = 362,
-    pkey_alloc = 363,
-    pkey_free = 364,
-    rseq = 365,
-    semtimedop = 392,
-    semget = 393,
-    semctl = 394,
-    shmget = 395,
-    shmctl = 396,
-    shmat = 397,
-    shmdt = 398,
-    msgget = 399,
-    msgsnd = 400,
-    msgrcv = 401,
-    msgctl = 402,
-    pidfd_send_signal = 424,
-    io_uring_setup = 425,
-    io_uring_enter = 426,
-    io_uring_register = 427,
-    open_tree = 428,
-    move_mount = 429,
-    fsopen = 430,
-    fsconfig = 431,
-    fsmount = 432,
-    fspick = 433,
-    pidfd_open = 434,
-    clone3 = 435,
-    close_range = 436,
-    openat2 = 437,
-    pidfd_getfd = 438,
-    faccessat2 = 439,
-    process_madvise = 440,
-    epoll_pwait2 = 441,
-    mount_setattr = 442,
-    landlock_create_ruleset = 444,
-    landlock_add_rule = 445,
-    landlock_restrict_self = 446,
-
-    _,
-};
-
 pub const O = struct {
     pub const CREAT = 0x200;
     pub const EXCL = 0x800;
@@ -648,31 +270,31 @@ pub const VDSO = struct {
 };
 
 pub const Flock = extern struct {
-    l_type: i16,
-    l_whence: i16,
-    l_start: off_t,
-    l_len: off_t,
-    l_pid: pid_t,
+    type: i16,
+    whence: i16,
+    start: off_t,
+    len: off_t,
+    pid: pid_t,
 };
 
 pub const msghdr = extern struct {
-    msg_name: ?*sockaddr,
-    msg_namelen: socklen_t,
-    msg_iov: [*]iovec,
-    msg_iovlen: u64,
-    msg_control: ?*anyopaque,
-    msg_controllen: u64,
-    msg_flags: i32,
+    name: ?*sockaddr,
+    namelen: socklen_t,
+    iov: [*]iovec,
+    iovlen: u64,
+    control: ?*anyopaque,
+    controllen: u64,
+    flags: i32,
 };
 
 pub const msghdr_const = extern struct {
-    msg_name: ?*const sockaddr,
-    msg_namelen: socklen_t,
-    msg_iov: [*]iovec_const,
-    msg_iovlen: u64,
-    msg_control: ?*anyopaque,
-    msg_controllen: u64,
-    msg_flags: i32,
+    name: ?*const sockaddr,
+    namelen: socklen_t,
+    iov: [*]const iovec_const,
+    iovlen: u64,
+    control: ?*const anyopaque,
+    controllen: u64,
+    flags: i32,
 };
 
 pub const off_t = i64;
@@ -821,7 +443,7 @@ pub const mcontext_t = extern struct {
 };
 
 pub const ucontext_t = extern struct {
-    link: *ucontext_t,
+    link: ?*ucontext_t,
     flags: u64,
     sigmask: u64,
     mcontext: mcontext_t,
diff --git a/lib/std/os/linux/syscalls.zig b/lib/std/os/linux/syscalls.zig
new file mode 100644
index 0000000000..fb0993afe5
--- /dev/null
+++ b/lib/std/os/linux/syscalls.zig
@@ -0,0 +1,3493 @@
+// This file is automatically generated.
+// See tools/generate_linux_syscalls.zig for more info.
+
+pub const X86 = enum(usize) {
+    restart_syscall = 0,
+    exit = 1,
+    fork = 2,
+    read = 3,
+    write = 4,
+    open = 5,
+    close = 6,
+    waitpid = 7,
+    creat = 8,
+    link = 9,
+    unlink = 10,
+    execve = 11,
+    chdir = 12,
+    time = 13,
+    mknod = 14,
+    chmod = 15,
+    lchown = 16,
+    @"break" = 17,
+    oldstat = 18,
+    lseek = 19,
+    getpid = 20,
+    mount = 21,
+    umount = 22,
+    setuid = 23,
+    getuid = 24,
+    stime = 25,
+    ptrace = 26,
+    alarm = 27,
+    oldfstat = 28,
+    pause = 29,
+    utime = 30,
+    stty = 31,
+    gtty = 32,
+    access = 33,
+    nice = 34,
+    ftime = 35,
+    sync = 36,
+    kill = 37,
+    rename = 38,
+    mkdir = 39,
+    rmdir = 40,
+    dup = 41,
+    pipe = 42,
+    times = 43,
+    prof = 44,
+    brk = 45,
+    setgid = 46,
+    getgid = 47,
+    signal = 48,
+    geteuid = 49,
+    getegid = 50,
+    acct = 51,
+    umount2 = 52,
+    lock = 53,
+    ioctl = 54,
+    fcntl = 55,
+    mpx = 56,
+    setpgid = 57,
+    ulimit = 58,
+    oldolduname = 59,
+    umask = 60,
+    chroot = 61,
+    ustat = 62,
+    dup2 = 63,
+    getppid = 64,
+    getpgrp = 65,
+    setsid = 66,
+    sigaction = 67,
+    sgetmask = 68,
+    ssetmask = 69,
+    setreuid = 70,
+    setregid = 71,
+    sigsuspend = 72,
+    sigpending = 73,
+    sethostname = 74,
+    setrlimit = 75,
+    getrlimit = 76,
+    getrusage = 77,
+    gettimeofday = 78,
+    settimeofday = 79,
+    getgroups = 80,
+    setgroups = 81,
+    select = 82,
+    symlink = 83,
+    oldlstat = 84,
+    readlink = 85,
+    uselib = 86,
+    swapon = 87,
+    reboot = 88,
+    readdir = 89,
+    mmap = 90,
+    munmap = 91,
+    truncate = 92,
+    ftruncate = 93,
+    fchmod = 94,
+    fchown = 95,
+    getpriority = 96,
+    setpriority = 97,
+    profil = 98,
+    statfs = 99,
+    fstatfs = 100,
+    ioperm = 101,
+    socketcall = 102,
+    syslog = 103,
+    setitimer = 104,
+    getitimer = 105,
+    stat = 106,
+    lstat = 107,
+    fstat = 108,
+    olduname = 109,
+    iopl = 110,
+    vhangup = 111,
+    idle = 112,
+    vm86old = 113,
+    wait4 = 114,
+    swapoff = 115,
+    sysinfo = 116,
+    ipc = 117,
+    fsync = 118,
+    sigreturn = 119,
+    clone = 120,
+    setdomainname = 121,
+    uname = 122,
+    modify_ldt = 123,
+    adjtimex = 124,
+    mprotect = 125,
+    sigprocmask = 126,
+    create_module = 127,
+    init_module = 128,
+    delete_module = 129,
+    get_kernel_syms = 130,
+    quotactl = 131,
+    getpgid = 132,
+    fchdir = 133,
+    bdflush = 134,
+    sysfs = 135,
+    personality = 136,
+    afs_syscall = 137,
+    setfsuid = 138,
+    setfsgid = 139,
+    _llseek = 140,
+    getdents = 141,
+    _newselect = 142,
+    flock = 143,
+    msync = 144,
+    readv = 145,
+    writev = 146,
+    getsid = 147,
+    fdatasync = 148,
+    _sysctl = 149,
+    mlock = 150,
+    munlock = 151,
+    mlockall = 152,
+    munlockall = 153,
+    sched_setparam = 154,
+    sched_getparam = 155,
+    sched_setscheduler = 156,
+    sched_getscheduler = 157,
+    sched_yield = 158,
+    sched_get_priority_max = 159,
+    sched_get_priority_min = 160,
+    sched_rr_get_interval = 161,
+    nanosleep = 162,
+    mremap = 163,
+    setresuid = 164,
+    getresuid = 165,
+    vm86 = 166,
+    query_module = 167,
+    poll = 168,
+    nfsservctl = 169,
+    setresgid = 170,
+    getresgid = 171,
+    prctl = 172,
+    rt_sigreturn = 173,
+    rt_sigaction = 174,
+    rt_sigprocmask = 175,
+    rt_sigpending = 176,
+    rt_sigtimedwait = 177,
+    rt_sigqueueinfo = 178,
+    rt_sigsuspend = 179,
+    pread64 = 180,
+    pwrite64 = 181,
+    chown = 182,
+    getcwd = 183,
+    capget = 184,
+    capset = 185,
+    sigaltstack = 186,
+    sendfile = 187,
+    getpmsg = 188,
+    putpmsg = 189,
+    vfork = 190,
+    ugetrlimit = 191,
+    mmap2 = 192,
+    truncate64 = 193,
+    ftruncate64 = 194,
+    stat64 = 195,
+    lstat64 = 196,
+    fstat64 = 197,
+    lchown32 = 198,
+    getuid32 = 199,
+    getgid32 = 200,
+    geteuid32 = 201,
+    getegid32 = 202,
+    setreuid32 = 203,
+    setregid32 = 204,
+    getgroups32 = 205,
+    setgroups32 = 206,
+    fchown32 = 207,
+    setresuid32 = 208,
+    getresuid32 = 209,
+    setresgid32 = 210,
+    getresgid32 = 211,
+    chown32 = 212,
+    setuid32 = 213,
+    setgid32 = 214,
+    setfsuid32 = 215,
+    setfsgid32 = 216,
+    pivot_root = 217,
+    mincore = 218,
+    madvise = 219,
+    getdents64 = 220,
+    fcntl64 = 221,
+    gettid = 224,
+    readahead = 225,
+    setxattr = 226,
+    lsetxattr = 227,
+    fsetxattr = 228,
+    getxattr = 229,
+    lgetxattr = 230,
+    fgetxattr = 231,
+    listxattr = 232,
+    llistxattr = 233,
+    flistxattr = 234,
+    removexattr = 235,
+    lremovexattr = 236,
+    fremovexattr = 237,
+    tkill = 238,
+    sendfile64 = 239,
+    futex = 240,
+    sched_setaffinity = 241,
+    sched_getaffinity = 242,
+    set_thread_area = 243,
+    get_thread_area = 244,
+    io_setup = 245,
+    io_destroy = 246,
+    io_getevents = 247,
+    io_submit = 248,
+    io_cancel = 249,
+    fadvise64 = 250,
+    exit_group = 252,
+    lookup_dcookie = 253,
+    epoll_create = 254,
+    epoll_ctl = 255,
+    epoll_wait = 256,
+    remap_file_pages = 257,
+    set_tid_address = 258,
+    timer_create = 259,
+    timer_settime = 260,
+    timer_gettime = 261,
+    timer_getoverrun = 262,
+    timer_delete = 263,
+    clock_settime = 264,
+    clock_gettime = 265,
+    clock_getres = 266,
+    clock_nanosleep = 267,
+    statfs64 = 268,
+    fstatfs64 = 269,
+    tgkill = 270,
+    utimes = 271,
+    fadvise64_64 = 272,
+    vserver = 273,
+    mbind = 274,
+    get_mempolicy = 275,
+    set_mempolicy = 276,
+    mq_open = 277,
+    mq_unlink = 278,
+    mq_timedsend = 279,
+    mq_timedreceive = 280,
+    mq_notify = 281,
+    mq_getsetattr = 282,
+    kexec_load = 283,
+    waitid = 284,
+    add_key = 286,
+    request_key = 287,
+    keyctl = 288,
+    ioprio_set = 289,
+    ioprio_get = 290,
+    inotify_init = 291,
+    inotify_add_watch = 292,
+    inotify_rm_watch = 293,
+    migrate_pages = 294,
+    openat = 295,
+    mkdirat = 296,
+    mknodat = 297,
+    fchownat = 298,
+    futimesat = 299,
+    fstatat64 = 300,
+    unlinkat = 301,
+    renameat = 302,
+    linkat = 303,
+    symlinkat = 304,
+    readlinkat = 305,
+    fchmodat = 306,
+    faccessat = 307,
+    pselect6 = 308,
+    ppoll = 309,
+    unshare = 310,
+    set_robust_list = 311,
+    get_robust_list = 312,
+    splice = 313,
+    sync_file_range = 314,
+    tee = 315,
+    vmsplice = 316,
+    move_pages = 317,
+    getcpu = 318,
+    epoll_pwait = 319,
+    utimensat = 320,
+    signalfd = 321,
+    timerfd_create = 322,
+    eventfd = 323,
+    fallocate = 324,
+    timerfd_settime = 325,
+    timerfd_gettime = 326,
+    signalfd4 = 327,
+    eventfd2 = 328,
+    epoll_create1 = 329,
+    dup3 = 330,
+    pipe2 = 331,
+    inotify_init1 = 332,
+    preadv = 333,
+    pwritev = 334,
+    rt_tgsigqueueinfo = 335,
+    perf_event_open = 336,
+    recvmmsg = 337,
+    fanotify_init = 338,
+    fanotify_mark = 339,
+    prlimit64 = 340,
+    name_to_handle_at = 341,
+    open_by_handle_at = 342,
+    clock_adjtime = 343,
+    syncfs = 344,
+    sendmmsg = 345,
+    setns = 346,
+    process_vm_readv = 347,
+    process_vm_writev = 348,
+    kcmp = 349,
+    finit_module = 350,
+    sched_setattr = 351,
+    sched_getattr = 352,
+    renameat2 = 353,
+    seccomp = 354,
+    getrandom = 355,
+    memfd_create = 356,
+    bpf = 357,
+    execveat = 358,
+    socket = 359,
+    socketpair = 360,
+    bind = 361,
+    connect = 362,
+    listen = 363,
+    accept4 = 364,
+    getsockopt = 365,
+    setsockopt = 366,
+    getsockname = 367,
+    getpeername = 368,
+    sendto = 369,
+    sendmsg = 370,
+    recvfrom = 371,
+    recvmsg = 372,
+    shutdown = 373,
+    userfaultfd = 374,
+    membarrier = 375,
+    mlock2 = 376,
+    copy_file_range = 377,
+    preadv2 = 378,
+    pwritev2 = 379,
+    pkey_mprotect = 380,
+    pkey_alloc = 381,
+    pkey_free = 382,
+    statx = 383,
+    arch_prctl = 384,
+    io_pgetevents = 385,
+    rseq = 386,
+    semget = 393,
+    semctl = 394,
+    shmget = 395,
+    shmctl = 396,
+    shmat = 397,
+    shmdt = 398,
+    msgget = 399,
+    msgsnd = 400,
+    msgrcv = 401,
+    msgctl = 402,
+    clock_gettime64 = 403,
+    clock_settime64 = 404,
+    clock_adjtime64 = 405,
+    clock_getres_time64 = 406,
+    clock_nanosleep_time64 = 407,
+    timer_gettime64 = 408,
+    timer_settime64 = 409,
+    timerfd_gettime64 = 410,
+    timerfd_settime64 = 411,
+    utimensat_time64 = 412,
+    pselect6_time64 = 413,
+    ppoll_time64 = 414,
+    io_pgetevents_time64 = 416,
+    recvmmsg_time64 = 417,
+    mq_timedsend_time64 = 418,
+    mq_timedreceive_time64 = 419,
+    semtimedop_time64 = 420,
+    rt_sigtimedwait_time64 = 421,
+    futex_time64 = 422,
+    sched_rr_get_interval_time64 = 423,
+    pidfd_send_signal = 424,
+    io_uring_setup = 425,
+    io_uring_enter = 426,
+    io_uring_register = 427,
+    open_tree = 428,
+    move_mount = 429,
+    fsopen = 430,
+    fsconfig = 431,
+    fsmount = 432,
+    fspick = 433,
+    pidfd_open = 434,
+    clone3 = 435,
+    close_range = 436,
+    openat2 = 437,
+    pidfd_getfd = 438,
+    faccessat2 = 439,
+    process_madvise = 440,
+    epoll_pwait2 = 441,
+    mount_setattr = 442,
+    quotactl_fd = 443,
+    landlock_create_ruleset = 444,
+    landlock_add_rule = 445,
+    landlock_restrict_self = 446,
+    memfd_secret = 447,
+    process_mrelease = 448,
+    futex_waitv = 449,
+    set_mempolicy_home_node = 450,
+};
+
+pub const X64 = enum(usize) {
+    read = 0,
+    write = 1,
+    open = 2,
+    close = 3,
+    stat = 4,
+    fstat = 5,
+    lstat = 6,
+    poll = 7,
+    lseek = 8,
+    mmap = 9,
+    mprotect = 10,
+    munmap = 11,
+    brk = 12,
+    rt_sigaction = 13,
+    rt_sigprocmask = 14,
+    rt_sigreturn = 15,
+    ioctl = 16,
+    pread64 = 17,
+    pwrite64 = 18,
+    readv = 19,
+    writev = 20,
+    access = 21,
+    pipe = 22,
+    select = 23,
+    sched_yield = 24,
+    mremap = 25,
+    msync = 26,
+    mincore = 27,
+    madvise = 28,
+    shmget = 29,
+    shmat = 30,
+    shmctl = 31,
+    dup = 32,
+    dup2 = 33,
+    pause = 34,
+    nanosleep = 35,
+    getitimer = 36,
+    alarm = 37,
+    setitimer = 38,
+    getpid = 39,
+    sendfile = 40,
+    socket = 41,
+    connect = 42,
+    accept = 43,
+    sendto = 44,
+    recvfrom = 45,
+    sendmsg = 46,
+    recvmsg = 47,
+    shutdown = 48,
+    bind = 49,
+    listen = 50,
+    getsockname = 51,
+    getpeername = 52,
+    socketpair = 53,
+    setsockopt = 54,
+    getsockopt = 55,
+    clone = 56,
+    fork = 57,
+    vfork = 58,
+    execve = 59,
+    exit = 60,
+    wait4 = 61,
+    kill = 62,
+    uname = 63,
+    semget = 64,
+    semop = 65,
+    semctl = 66,
+    shmdt = 67,
+    msgget = 68,
+    msgsnd = 69,
+    msgrcv = 70,
+    msgctl = 71,
+    fcntl = 72,
+    flock = 73,
+    fsync = 74,
+    fdatasync = 75,
+    truncate = 76,
+    ftruncate = 77,
+    getdents = 78,
+    getcwd = 79,
+    chdir = 80,
+    fchdir = 81,
+    rename = 82,
+    mkdir = 83,
+    rmdir = 84,
+    creat = 85,
+    link = 86,
+    unlink = 87,
+    symlink = 88,
+    readlink = 89,
+    chmod = 90,
+    fchmod = 91,
+    chown = 92,
+    fchown = 93,
+    lchown = 94,
+    umask = 95,
+    gettimeofday = 96,
+    getrlimit = 97,
+    getrusage = 98,
+    sysinfo = 99,
+    times = 100,
+    ptrace = 101,
+    getuid = 102,
+    syslog = 103,
+    getgid = 104,
+    setuid = 105,
+    setgid = 106,
+    geteuid = 107,
+    getegid = 108,
+    setpgid = 109,
+    getppid = 110,
+    getpgrp = 111,
+    setsid = 112,
+    setreuid = 113,
+    setregid = 114,
+    getgroups = 115,
+    setgroups = 116,
+    setresuid = 117,
+    getresuid = 118,
+    setresgid = 119,
+    getresgid = 120,
+    getpgid = 121,
+    setfsuid = 122,
+    setfsgid = 123,
+    getsid = 124,
+    capget = 125,
+    capset = 126,
+    rt_sigpending = 127,
+    rt_sigtimedwait = 128,
+    rt_sigqueueinfo = 129,
+    rt_sigsuspend = 130,
+    sigaltstack = 131,
+    utime = 132,
+    mknod = 133,
+    uselib = 134,
+    personality = 135,
+    ustat = 136,
+    statfs = 137,
+    fstatfs = 138,
+    sysfs = 139,
+    getpriority = 140,
+    setpriority = 141,
+    sched_setparam = 142,
+    sched_getparam = 143,
+    sched_setscheduler = 144,
+    sched_getscheduler = 145,
+    sched_get_priority_max = 146,
+    sched_get_priority_min = 147,
+    sched_rr_get_interval = 148,
+    mlock = 149,
+    munlock = 150,
+    mlockall = 151,
+    munlockall = 152,
+    vhangup = 153,
+    modify_ldt = 154,
+    pivot_root = 155,
+    _sysctl = 156,
+    prctl = 157,
+    arch_prctl = 158,
+    adjtimex = 159,
+    setrlimit = 160,
+    chroot = 161,
+    sync = 162,
+    acct = 163,
+    settimeofday = 164,
+    mount = 165,
+    umount2 = 166,
+    swapon = 167,
+    swapoff = 168,
+    reboot = 169,
+    sethostname = 170,
+    setdomainname = 171,
+    iopl = 172,
+    ioperm = 173,
+    create_module = 174,
+    init_module = 175,
+    delete_module = 176,
+    get_kernel_syms = 177,
+    query_module = 178,
+    quotactl = 179,
+    nfsservctl = 180,
+    getpmsg = 181,
+    putpmsg = 182,
+    afs_syscall = 183,
+    tuxcall = 184,
+    security = 185,
+    gettid = 186,
+    readahead = 187,
+    setxattr = 188,
+    lsetxattr = 189,
+    fsetxattr = 190,
+    getxattr = 191,
+    lgetxattr = 192,
+    fgetxattr = 193,
+    listxattr = 194,
+    llistxattr = 195,
+    flistxattr = 196,
+    removexattr = 197,
+    lremovexattr = 198,
+    fremovexattr = 199,
+    tkill = 200,
+    time = 201,
+    futex = 202,
+    sched_setaffinity = 203,
+    sched_getaffinity = 204,
+    set_thread_area = 205,
+    io_setup = 206,
+    io_destroy = 207,
+    io_getevents = 208,
+    io_submit = 209,
+    io_cancel = 210,
+    get_thread_area = 211,
+    lookup_dcookie = 212,
+    epoll_create = 213,
+    epoll_ctl_old = 214,
+    epoll_wait_old = 215,
+    remap_file_pages = 216,
+    getdents64 = 217,
+    set_tid_address = 218,
+    restart_syscall = 219,
+    semtimedop = 220,
+    fadvise64 = 221,
+    timer_create = 222,
+    timer_settime = 223,
+    timer_gettime = 224,
+    timer_getoverrun = 225,
+    timer_delete = 226,
+    clock_settime = 227,
+    clock_gettime = 228,
+    clock_getres = 229,
+    clock_nanosleep = 230,
+    exit_group = 231,
+    epoll_wait = 232,
+    epoll_ctl = 233,
+    tgkill = 234,
+    utimes = 235,
+    vserver = 236,
+    mbind = 237,
+    set_mempolicy = 238,
+    get_mempolicy = 239,
+    mq_open = 240,
+    mq_unlink = 241,
+    mq_timedsend = 242,
+    mq_timedreceive = 243,
+    mq_notify = 244,
+    mq_getsetattr = 245,
+    kexec_load = 246,
+    waitid = 247,
+    add_key = 248,
+    request_key = 249,
+    keyctl = 250,
+    ioprio_set = 251,
+    ioprio_get = 252,
+    inotify_init = 253,
+    inotify_add_watch = 254,
+    inotify_rm_watch = 255,
+    migrate_pages = 256,
+    openat = 257,
+    mkdirat = 258,
+    mknodat = 259,
+    fchownat = 260,
+    futimesat = 261,
+    fstatat64 = 262,
+    unlinkat = 263,
+    renameat = 264,
+    linkat = 265,
+    symlinkat = 266,
+    readlinkat = 267,
+    fchmodat = 268,
+    faccessat = 269,
+    pselect6 = 270,
+    ppoll = 271,
+    unshare = 272,
+    set_robust_list = 273,
+    get_robust_list = 274,
+    splice = 275,
+    tee = 276,
+    sync_file_range = 277,
+    vmsplice = 278,
+    move_pages = 279,
+    utimensat = 280,
+    epoll_pwait = 281,
+    signalfd = 282,
+    timerfd_create = 283,
+    eventfd = 284,
+    fallocate = 285,
+    timerfd_settime = 286,
+    timerfd_gettime = 287,
+    accept4 = 288,
+    signalfd4 = 289,
+    eventfd2 = 290,
+    epoll_create1 = 291,
+    dup3 = 292,
+    pipe2 = 293,
+    inotify_init1 = 294,
+    preadv = 295,
+    pwritev = 296,
+    rt_tgsigqueueinfo = 297,
+    perf_event_open = 298,
+    recvmmsg = 299,
+    fanotify_init = 300,
+    fanotify_mark = 301,
+    prlimit64 = 302,
+    name_to_handle_at = 303,
+    open_by_handle_at = 304,
+    clock_adjtime = 305,
+    syncfs = 306,
+    sendmmsg = 307,
+    setns = 308,
+    getcpu = 309,
+    process_vm_readv = 310,
+    process_vm_writev = 311,
+    kcmp = 312,
+    finit_module = 313,
+    sched_setattr = 314,
+    sched_getattr = 315,
+    renameat2 = 316,
+    seccomp = 317,
+    getrandom = 318,
+    memfd_create = 319,
+    kexec_file_load = 320,
+    bpf = 321,
+    execveat = 322,
+    userfaultfd = 323,
+    membarrier = 324,
+    mlock2 = 325,
+    copy_file_range = 326,
+    preadv2 = 327,
+    pwritev2 = 328,
+    pkey_mprotect = 329,
+    pkey_alloc = 330,
+    pkey_free = 331,
+    statx = 332,
+    io_pgetevents = 333,
+    rseq = 334,
+    pidfd_send_signal = 424,
+    io_uring_setup = 425,
+    io_uring_enter = 426,
+    io_uring_register = 427,
+    open_tree = 428,
+    move_mount = 429,
+    fsopen = 430,
+    fsconfig = 431,
+    fsmount = 432,
+    fspick = 433,
+    pidfd_open = 434,
+    clone3 = 435,
+    close_range = 436,
+    openat2 = 437,
+    pidfd_getfd = 438,
+    faccessat2 = 439,
+    process_madvise = 440,
+    epoll_pwait2 = 441,
+    mount_setattr = 442,
+    quotactl_fd = 443,
+    landlock_create_ruleset = 444,
+    landlock_add_rule = 445,
+    landlock_restrict_self = 446,
+    memfd_secret = 447,
+    process_mrelease = 448,
+    futex_waitv = 449,
+    set_mempolicy_home_node = 450,
+};
+
+pub const Arm = enum(usize) {
+    const arm_base = 0x0f0000;
+
+    restart_syscall = 0,
+    exit = 1,
+    fork = 2,
+    read = 3,
+    write = 4,
+    open = 5,
+    close = 6,
+    creat = 8,
+    link = 9,
+    unlink = 10,
+    execve = 11,
+    chdir = 12,
+    mknod = 14,
+    chmod = 15,
+    lchown = 16,
+    lseek = 19,
+    getpid = 20,
+    mount = 21,
+    setuid = 23,
+    getuid = 24,
+    ptrace = 26,
+    pause = 29,
+    access = 33,
+    nice = 34,
+    sync = 36,
+    kill = 37,
+    rename = 38,
+    mkdir = 39,
+    rmdir = 40,
+    dup = 41,
+    pipe = 42,
+    times = 43,
+    brk = 45,
+    setgid = 46,
+    getgid = 47,
+    geteuid = 49,
+    getegid = 50,
+    acct = 51,
+    umount2 = 52,
+    ioctl = 54,
+    fcntl = 55,
+    setpgid = 57,
+    umask = 60,
+    chroot = 61,
+    ustat = 62,
+    dup2 = 63,
+    getppid = 64,
+    getpgrp = 65,
+    setsid = 66,
+    sigaction = 67,
+    setreuid = 70,
+    setregid = 71,
+    sigsuspend = 72,
+    sigpending = 73,
+    sethostname = 74,
+    setrlimit = 75,
+    getrusage = 77,
+    gettimeofday = 78,
+    settimeofday = 79,
+    getgroups = 80,
+    setgroups = 81,
+    symlink = 83,
+    readlink = 85,
+    uselib = 86,
+    swapon = 87,
+    reboot = 88,
+    munmap = 91,
+    truncate = 92,
+    ftruncate = 93,
+    fchmod = 94,
+    fchown = 95,
+    getpriority = 96,
+    setpriority = 97,
+    statfs = 99,
+    fstatfs = 100,
+    syslog = 103,
+    setitimer = 104,
+    getitimer = 105,
+    stat = 106,
+    lstat = 107,
+    fstat = 108,
+    vhangup = 111,
+    wait4 = 114,
+    swapoff = 115,
+    sysinfo = 116,
+    fsync = 118,
+    sigreturn = 119,
+    clone = 120,
+    setdomainname = 121,
+    uname = 122,
+    adjtimex = 124,
+    mprotect = 125,
+    sigprocmask = 126,
+    init_module = 128,
+    delete_module = 129,
+    quotactl = 131,
+    getpgid = 132,
+    fchdir = 133,
+    bdflush = 134,
+    sysfs = 135,
+    personality = 136,
+    setfsuid = 138,
+    setfsgid = 139,
+    _llseek = 140,
+    getdents = 141,
+    _newselect = 142,
+    flock = 143,
+    msync = 144,
+    readv = 145,
+    writev = 146,
+    getsid = 147,
+    fdatasync = 148,
+    _sysctl = 149,
+    mlock = 150,
+    munlock = 151,
+    mlockall = 152,
+    munlockall = 153,
+    sched_setparam = 154,
+    sched_getparam = 155,
+    sched_setscheduler = 156,
+    sched_getscheduler = 157,
+    sched_yield = 158,
+    sched_get_priority_max = 159,
+    sched_get_priority_min = 160,
+    sched_rr_get_interval = 161,
+    nanosleep = 162,
+    mremap = 163,
+    setresuid = 164,
+    getresuid = 165,
+    poll = 168,
+    nfsservctl = 169,
+    setresgid = 170,
+    getresgid = 171,
+    prctl = 172,
+    rt_sigreturn = 173,
+    rt_sigaction = 174,
+    rt_sigprocmask = 175,
+    rt_sigpending = 176,
+    rt_sigtimedwait = 177,
+    rt_sigqueueinfo = 178,
+    rt_sigsuspend = 179,
+    pread64 = 180,
+    pwrite64 = 181,
+    chown = 182,
+    getcwd = 183,
+    capget = 184,
+    capset = 185,
+    sigaltstack = 186,
+    sendfile = 187,
+    vfork = 190,
+    ugetrlimit = 191,
+    mmap2 = 192,
+    truncate64 = 193,
+    ftruncate64 = 194,
+    stat64 = 195,
+    lstat64 = 196,
+    fstat64 = 197,
+    lchown32 = 198,
+    getuid32 = 199,
+    getgid32 = 200,
+    geteuid32 = 201,
+    getegid32 = 202,
+    setreuid32 = 203,
+    setregid32 = 204,
+    getgroups32 = 205,
+    setgroups32 = 206,
+    fchown32 = 207,
+    setresuid32 = 208,
+    getresuid32 = 209,
+    setresgid32 = 210,
+    getresgid32 = 211,
+    chown32 = 212,
+    setuid32 = 213,
+    setgid32 = 214,
+    setfsuid32 = 215,
+    setfsgid32 = 216,
+    getdents64 = 217,
+    pivot_root = 218,
+    mincore = 219,
+    madvise = 220,
+    fcntl64 = 221,
+    gettid = 224,
+    readahead = 225,
+    setxattr = 226,
+    lsetxattr = 227,
+    fsetxattr = 228,
+    getxattr = 229,
+    lgetxattr = 230,
+    fgetxattr = 231,
+    listxattr = 232,
+    llistxattr = 233,
+    flistxattr = 234,
+    removexattr = 235,
+    lremovexattr = 236,
+    fremovexattr = 237,
+    tkill = 238,
+    sendfile64 = 239,
+    futex = 240,
+    sched_setaffinity = 241,
+    sched_getaffinity = 242,
+    io_setup = 243,
+    io_destroy = 244,
+    io_getevents = 245,
+    io_submit = 246,
+    io_cancel = 247,
+    exit_group = 248,
+    lookup_dcookie = 249,
+    epoll_create = 250,
+    epoll_ctl = 251,
+    epoll_wait = 252,
+    remap_file_pages = 253,
+    set_tid_address = 256,
+    timer_create = 257,
+    timer_settime = 258,
+    timer_gettime = 259,
+    timer_getoverrun = 260,
+    timer_delete = 261,
+    clock_settime = 262,
+    clock_gettime = 263,
+    clock_getres = 264,
+    clock_nanosleep = 265,
+    statfs64 = 266,
+    fstatfs64 = 267,
+    tgkill = 268,
+    utimes = 269,
+    fadvise64_64 = 270,
+    pciconfig_iobase = 271,
+    pciconfig_read = 272,
+    pciconfig_write = 273,
+    mq_open = 274,
+    mq_unlink = 275,
+    mq_timedsend = 276,
+    mq_timedreceive = 277,
+    mq_notify = 278,
+    mq_getsetattr = 279,
+    waitid = 280,
+    socket = 281,
+    bind = 282,
+    connect = 283,
+    listen = 284,
+    accept = 285,
+    getsockname = 286,
+    getpeername = 287,
+    socketpair = 288,
+    send = 289,
+    sendto = 290,
+    recv = 291,
+    recvfrom = 292,
+    shutdown = 293,
+    setsockopt = 294,
+    getsockopt = 295,
+    sendmsg = 296,
+    recvmsg = 297,
+    semop = 298,
+    semget = 299,
+    semctl = 300,
+    msgsnd = 301,
+    msgrcv = 302,
+    msgget = 303,
+    msgctl = 304,
+    shmat = 305,
+    shmdt = 306,
+    shmget = 307,
+    shmctl = 308,
+    add_key = 309,
+    request_key = 310,
+    keyctl = 311,
+    semtimedop = 312,
+    vserver = 313,
+    ioprio_set = 314,
+    ioprio_get = 315,
+    inotify_init = 316,
+    inotify_add_watch = 317,
+    inotify_rm_watch = 318,
+    mbind = 319,
+    get_mempolicy = 320,
+    set_mempolicy = 321,
+    openat = 322,
+    mkdirat = 323,
+    mknodat = 324,
+    fchownat = 325,
+    futimesat = 326,
+    fstatat64 = 327,
+    unlinkat = 328,
+    renameat = 329,
+    linkat = 330,
+    symlinkat = 331,
+    readlinkat = 332,
+    fchmodat = 333,
+    faccessat = 334,
+    pselect6 = 335,
+    ppoll = 336,
+    unshare = 337,
+    set_robust_list = 338,
+    get_robust_list = 339,
+    splice = 340,
+    sync_file_range = 341,
+    tee = 342,
+    vmsplice = 343,
+    move_pages = 344,
+    getcpu = 345,
+    epoll_pwait = 346,
+    kexec_load = 347,
+    utimensat = 348,
+    signalfd = 349,
+    timerfd_create = 350,
+    eventfd = 351,
+    fallocate = 352,
+    timerfd_settime = 353,
+    timerfd_gettime = 354,
+    signalfd4 = 355,
+    eventfd2 = 356,
+    epoll_create1 = 357,
+    dup3 = 358,
+    pipe2 = 359,
+    inotify_init1 = 360,
+    preadv = 361,
+    pwritev = 362,
+    rt_tgsigqueueinfo = 363,
+    perf_event_open = 364,
+    recvmmsg = 365,
+    accept4 = 366,
+    fanotify_init = 367,
+    fanotify_mark = 368,
+    prlimit64 = 369,
+    name_to_handle_at = 370,
+    open_by_handle_at = 371,
+    clock_adjtime = 372,
+    syncfs = 373,
+    sendmmsg = 374,
+    setns = 375,
+    process_vm_readv = 376,
+    process_vm_writev = 377,
+    kcmp = 378,
+    finit_module = 379,
+    sched_setattr = 380,
+    sched_getattr = 381,
+    renameat2 = 382,
+    seccomp = 383,
+    getrandom = 384,
+    memfd_create = 385,
+    bpf = 386,
+    execveat = 387,
+    userfaultfd = 388,
+    membarrier = 389,
+    mlock2 = 390,
+    copy_file_range = 391,
+    preadv2 = 392,
+    pwritev2 = 393,
+    pkey_mprotect = 394,
+    pkey_alloc = 395,
+    pkey_free = 396,
+    statx = 397,
+    rseq = 398,
+    io_pgetevents = 399,
+    migrate_pages = 400,
+    kexec_file_load = 401,
+    clock_gettime64 = 403,
+    clock_settime64 = 404,
+    clock_adjtime64 = 405,
+    clock_getres_time64 = 406,
+    clock_nanosleep_time64 = 407,
+    timer_gettime64 = 408,
+    timer_settime64 = 409,
+    timerfd_gettime64 = 410,
+    timerfd_settime64 = 411,
+    utimensat_time64 = 412,
+    pselect6_time64 = 413,
+    ppoll_time64 = 414,
+    io_pgetevents_time64 = 416,
+    recvmmsg_time64 = 417,
+    mq_timedsend_time64 = 418,
+    mq_timedreceive_time64 = 419,
+    semtimedop_time64 = 420,
+    rt_sigtimedwait_time64 = 421,
+    futex_time64 = 422,
+    sched_rr_get_interval_time64 = 423,
+    pidfd_send_signal = 424,
+    io_uring_setup = 425,
+    io_uring_enter = 426,
+    io_uring_register = 427,
+    open_tree = 428,
+    move_mount = 429,
+    fsopen = 430,
+    fsconfig = 431,
+    fsmount = 432,
+    fspick = 433,
+    pidfd_open = 434,
+    clone3 = 435,
+    close_range = 436,
+    openat2 = 437,
+    pidfd_getfd = 438,
+    faccessat2 = 439,
+    process_madvise = 440,
+    epoll_pwait2 = 441,
+    mount_setattr = 442,
+    quotactl_fd = 443,
+    landlock_create_ruleset = 444,
+    landlock_add_rule = 445,
+    landlock_restrict_self = 446,
+    process_mrelease = 448,
+    futex_waitv = 449,
+    set_mempolicy_home_node = 450,
+
+    breakpoint = arm_base + 1,
+    cacheflush = arm_base + 2,
+    usr26 = arm_base + 3,
+    usr32 = arm_base + 4,
+    set_tls = arm_base + 5,
+    get_tls = arm_base + 6,
+};
+
+pub const Sparc64 = enum(usize) {
+    restart_syscall = 0,
+    exit = 1,
+    fork = 2,
+    read = 3,
+    write = 4,
+    open = 5,
+    close = 6,
+    wait4 = 7,
+    creat = 8,
+    link = 9,
+    unlink = 10,
+    execv = 11,
+    chdir = 12,
+    chown = 13,
+    mknod = 14,
+    chmod = 15,
+    lchown = 16,
+    brk = 17,
+    perfctr = 18,
+    lseek = 19,
+    getpid = 20,
+    capget = 21,
+    capset = 22,
+    setuid = 23,
+    getuid = 24,
+    vmsplice = 25,
+    ptrace = 26,
+    alarm = 27,
+    sigaltstack = 28,
+    pause = 29,
+    utime = 30,
+    access = 33,
+    nice = 34,
+    sync = 36,
+    kill = 37,
+    stat = 38,
+    sendfile = 39,
+    lstat = 40,
+    dup = 41,
+    pipe = 42,
+    times = 43,
+    umount2 = 45,
+    setgid = 46,
+    getgid = 47,
+    signal = 48,
+    geteuid = 49,
+    getegid = 50,
+    acct = 51,
+    memory_ordering = 52,
+    ioctl = 54,
+    reboot = 55,
+    symlink = 57,
+    readlink = 58,
+    execve = 59,
+    umask = 60,
+    chroot = 61,
+    fstat = 62,
+    fstat64 = 63,
+    getpagesize = 64,
+    msync = 65,
+    vfork = 66,
+    pread64 = 67,
+    pwrite64 = 68,
+    mmap = 71,
+    munmap = 73,
+    mprotect = 74,
+    madvise = 75,
+    vhangup = 76,
+    mincore = 78,
+    getgroups = 79,
+    setgroups = 80,
+    getpgrp = 81,
+    setitimer = 83,
+    swapon = 85,
+    getitimer = 86,
+    sethostname = 88,
+    dup2 = 90,
+    fcntl = 92,
+    select = 93,
+    fsync = 95,
+    setpriority = 96,
+    socket = 97,
+    connect = 98,
+    accept = 99,
+    getpriority = 100,
+    rt_sigreturn = 101,
+    rt_sigaction = 102,
+    rt_sigprocmask = 103,
+    rt_sigpending = 104,
+    rt_sigtimedwait = 105,
+    rt_sigqueueinfo = 106,
+    rt_sigsuspend = 107,
+    setresuid = 108,
+    getresuid = 109,
+    setresgid = 110,
+    getresgid = 111,
+    recvmsg = 113,
+    sendmsg = 114,
+    gettimeofday = 116,
+    getrusage = 117,
+    getsockopt = 118,
+    getcwd = 119,
+    readv = 120,
+    writev = 121,
+    settimeofday = 122,
+    fchown = 123,
+    fchmod = 124,
+    recvfrom = 125,
+    setreuid = 126,
+    setregid = 127,
+    rename = 128,
+    truncate = 129,
+    ftruncate = 130,
+    flock = 131,
+    lstat64 = 132,
+    sendto = 133,
+    shutdown = 134,
+    socketpair = 135,
+    mkdir = 136,
+    rmdir = 137,
+    utimes = 138,
+    stat64 = 139,
+    sendfile64 = 140,
+    getpeername = 141,
+    futex = 142,
+    gettid = 143,
+    getrlimit = 144,
+    setrlimit = 145,
+    pivot_root = 146,
+    prctl = 147,
+    pciconfig_read = 148,
+    pciconfig_write = 149,
+    getsockname = 150,
+    inotify_init = 151,
+    inotify_add_watch = 152,
+    poll = 153,
+    getdents64 = 154,
+    inotify_rm_watch = 156,
+    statfs = 157,
+    fstatfs = 158,
+    umount = 159,
+    sched_set_affinity = 160,
+    sched_get_affinity = 161,
+    getdomainname = 162,
+    setdomainname = 163,
+    utrap_install = 164,
+    quotactl = 165,
+    set_tid_address = 166,
+    mount = 167,
+    ustat = 168,
+    setxattr = 169,
+    lsetxattr = 170,
+    fsetxattr = 171,
+    getxattr = 172,
+    lgetxattr = 173,
+    getdents = 174,
+    setsid = 175,
+    fchdir = 176,
+    fgetxattr = 177,
+    listxattr = 178,
+    llistxattr = 179,
+    flistxattr = 180,
+    removexattr = 181,
+    lremovexattr = 182,
+    sigpending = 183,
+    query_module = 184,
+    setpgid = 185,
+    fremovexattr = 186,
+    tkill = 187,
+    exit_group = 188,
+    uname = 189,
+    init_module = 190,
+    personality = 191,
+    remap_file_pages = 192,
+    epoll_create = 193,
+    epoll_ctl = 194,
+    epoll_wait = 195,
+    ioprio_set = 196,
+    getppid = 197,
+    sigaction = 198,
+    sgetmask = 199,
+    ssetmask = 200,
+    sigsuspend = 201,
+    oldlstat = 202,
+    uselib = 203,
+    readdir = 204,
+    readahead = 205,
+    socketcall = 206,
+    syslog = 207,
+    lookup_dcookie = 208,
+    fadvise64 = 209,
+    fadvise64_64 = 210,
+    tgkill = 211,
+    waitpid = 212,
+    swapoff = 213,
+    sysinfo = 214,
+    ipc = 215,
+    sigreturn = 216,
+    clone = 217,
+    ioprio_get = 218,
+    adjtimex = 219,
+    sigprocmask = 220,
+    create_module = 221,
+    delete_module = 222,
+    get_kernel_syms = 223,
+    getpgid = 224,
+    bdflush = 225,
+    sysfs = 226,
+    afs_syscall = 227,
+    setfsuid = 228,
+    setfsgid = 229,
+    _newselect = 230,
+    splice = 232,
+    stime = 233,
+    statfs64 = 234,
+    fstatfs64 = 235,
+    _llseek = 236,
+    mlock = 237,
+    munlock = 238,
+    mlockall = 239,
+    munlockall = 240,
+    sched_setparam = 241,
+    sched_getparam = 242,
+    sched_setscheduler = 243,
+    sched_getscheduler = 244,
+    sched_yield = 245,
+    sched_get_priority_max = 246,
+    sched_get_priority_min = 247,
+    sched_rr_get_interval = 248,
+    nanosleep = 249,
+    mremap = 250,
+    _sysctl = 251,
+    getsid = 252,
+    fdatasync = 253,
+    nfsservctl = 254,
+    sync_file_range = 255,
+    clock_settime = 256,
+    clock_gettime = 257,
+    clock_getres = 258,
+    clock_nanosleep = 259,
+    sched_getaffinity = 260,
+    sched_setaffinity = 261,
+    timer_settime = 262,
+    timer_gettime = 263,
+    timer_getoverrun = 264,
+    timer_delete = 265,
+    timer_create = 266,
+    vserver = 267,
+    io_setup = 268,
+    io_destroy = 269,
+    io_submit = 270,
+    io_cancel = 271,
+    io_getevents = 272,
+    mq_open = 273,
+    mq_unlink = 274,
+    mq_timedsend = 275,
+    mq_timedreceive = 276,
+    mq_notify = 277,
+    mq_getsetattr = 278,
+    waitid = 279,
+    tee = 280,
+    add_key = 281,
+    request_key = 282,
+    keyctl = 283,
+    openat = 284,
+    mkdirat = 285,
+    mknodat = 286,
+    fchownat = 287,
+    futimesat = 288,
+    fstatat64 = 289,
+    unlinkat = 290,
+    renameat = 291,
+    linkat = 292,
+    symlinkat = 293,
+    readlinkat = 294,
+    fchmodat = 295,
+    faccessat = 296,
+    pselect6 = 297,
+    ppoll = 298,
+    unshare = 299,
+    set_robust_list = 300,
+    get_robust_list = 301,
+    migrate_pages = 302,
+    mbind = 303,
+    get_mempolicy = 304,
+    set_mempolicy = 305,
+    kexec_load = 306,
+    move_pages = 307,
+    getcpu = 308,
+    epoll_pwait = 309,
+    utimensat = 310,
+    signalfd = 311,
+    timerfd_create = 312,
+    eventfd = 313,
+    fallocate = 314,
+    timerfd_settime = 315,
+    timerfd_gettime = 316,
+    signalfd4 = 317,
+    eventfd2 = 318,
+    epoll_create1 = 319,
+    dup3 = 320,
+    pipe2 = 321,
+    inotify_init1 = 322,
+    accept4 = 323,
+    preadv = 324,
+    pwritev = 325,
+    rt_tgsigqueueinfo = 326,
+    perf_event_open = 327,
+    recvmmsg = 328,
+    fanotify_init = 329,
+    fanotify_mark = 330,
+    prlimit64 = 331,
+    name_to_handle_at = 332,
+    open_by_handle_at = 333,
+    clock_adjtime = 334,
+    syncfs = 335,
+    sendmmsg = 336,
+    setns = 337,
+    process_vm_readv = 338,
+    process_vm_writev = 339,
+    kern_features = 340,
+    kcmp = 341,
+    finit_module = 342,
+    sched_setattr = 343,
+    sched_getattr = 344,
+    renameat2 = 345,
+    seccomp = 346,
+    getrandom = 347,
+    memfd_create = 348,
+    bpf = 349,
+    execveat = 350,
+    membarrier = 351,
+    userfaultfd = 352,
+    bind = 353,
+    listen = 354,
+    setsockopt = 355,
+    mlock2 = 356,
+    copy_file_range = 357,
+    preadv2 = 358,
+    pwritev2 = 359,
+    statx = 360,
+    io_pgetevents = 361,
+    pkey_mprotect = 362,
+    pkey_alloc = 363,
+    pkey_free = 364,
+    rseq = 365,
+    semtimedop = 392,
+    semget = 393,
+    semctl = 394,
+    shmget = 395,
+    shmctl = 396,
+    shmat = 397,
+    shmdt = 398,
+    msgget = 399,
+    msgsnd = 400,
+    msgrcv = 401,
+    msgctl = 402,
+    pidfd_send_signal = 424,
+    io_uring_setup = 425,
+    io_uring_enter = 426,
+    io_uring_register = 427,
+    open_tree = 428,
+    move_mount = 429,
+    fsopen = 430,
+    fsconfig = 431,
+    fsmount = 432,
+    fspick = 433,
+    pidfd_open = 434,
+    close_range = 436,
+    openat2 = 437,
+    pidfd_getfd = 438,
+    faccessat2 = 439,
+    process_madvise = 440,
+    epoll_pwait2 = 441,
+    mount_setattr = 442,
+    quotactl_fd = 443,
+    landlock_create_ruleset = 444,
+    landlock_add_rule = 445,
+    landlock_restrict_self = 446,
+    process_mrelease = 448,
+    futex_waitv = 449,
+    set_mempolicy_home_node = 450,
+};
+
+pub const Mips = enum(usize) {
+    pub const Linux = 4000;
+
+    syscall = Linux + 0,
+    exit = Linux + 1,
+    fork = Linux + 2,
+    read = Linux + 3,
+    write = Linux + 4,
+    open = Linux + 5,
+    close = Linux + 6,
+    waitpid = Linux + 7,
+    creat = Linux + 8,
+    link = Linux + 9,
+    unlink = Linux + 10,
+    execve = Linux + 11,
+    chdir = Linux + 12,
+    time = Linux + 13,
+    mknod = Linux + 14,
+    chmod = Linux + 15,
+    lchown = Linux + 16,
+    @"break" = Linux + 17,
+    lseek = Linux + 19,
+    getpid = Linux + 20,
+    mount = Linux + 21,
+    umount = Linux + 22,
+    setuid = Linux + 23,
+    getuid = Linux + 24,
+    stime = Linux + 25,
+    ptrace = Linux + 26,
+    alarm = Linux + 27,
+    pause = Linux + 29,
+    utime = Linux + 30,
+    stty = Linux + 31,
+    gtty = Linux + 32,
+    access = Linux + 33,
+    nice = Linux + 34,
+    ftime = Linux + 35,
+    sync = Linux + 36,
+    kill = Linux + 37,
+    rename = Linux + 38,
+    mkdir = Linux + 39,
+    rmdir = Linux + 40,
+    dup = Linux + 41,
+    pipe = Linux + 42,
+    times = Linux + 43,
+    prof = Linux + 44,
+    brk = Linux + 45,
+    setgid = Linux + 46,
+    getgid = Linux + 47,
+    signal = Linux + 48,
+    geteuid = Linux + 49,
+    getegid = Linux + 50,
+    acct = Linux + 51,
+    umount2 = Linux + 52,
+    lock = Linux + 53,
+    ioctl = Linux + 54,
+    fcntl = Linux + 55,
+    mpx = Linux + 56,
+    setpgid = Linux + 57,
+    ulimit = Linux + 58,
+    umask = Linux + 60,
+    chroot = Linux + 61,
+    ustat = Linux + 62,
+    dup2 = Linux + 63,
+    getppid = Linux + 64,
+    getpgrp = Linux + 65,
+    setsid = Linux + 66,
+    sigaction = Linux + 67,
+    sgetmask = Linux + 68,
+    ssetmask = Linux + 69,
+    setreuid = Linux + 70,
+    setregid = Linux + 71,
+    sigsuspend = Linux + 72,
+    sigpending = Linux + 73,
+    sethostname = Linux + 74,
+    setrlimit = Linux + 75,
+    getrlimit = Linux + 76,
+    getrusage = Linux + 77,
+    gettimeofday = Linux + 78,
+    settimeofday = Linux + 79,
+    getgroups = Linux + 80,
+    setgroups = Linux + 81,
+    reserved82 = Linux + 82,
+    symlink = Linux + 83,
+    readlink = Linux + 85,
+    uselib = Linux + 86,
+    swapon = Linux + 87,
+    reboot = Linux + 88,
+    readdir = Linux + 89,
+    mmap = Linux + 90,
+    munmap = Linux + 91,
+    truncate = Linux + 92,
+    ftruncate = Linux + 93,
+    fchmod = Linux + 94,
+    fchown = Linux + 95,
+    getpriority = Linux + 96,
+    setpriority = Linux + 97,
+    profil = Linux + 98,
+    statfs = Linux + 99,
+    fstatfs = Linux + 100,
+    ioperm = Linux + 101,
+    socketcall = Linux + 102,
+    syslog = Linux + 103,
+    setitimer = Linux + 104,
+    getitimer = Linux + 105,
+    stat = Linux + 106,
+    lstat = Linux + 107,
+    fstat = Linux + 108,
+    iopl = Linux + 110,
+    vhangup = Linux + 111,
+    idle = Linux + 112,
+    vm86 = Linux + 113,
+    wait4 = Linux + 114,
+    swapoff = Linux + 115,
+    sysinfo = Linux + 116,
+    ipc = Linux + 117,
+    fsync = Linux + 118,
+    sigreturn = Linux + 119,
+    clone = Linux + 120,
+    setdomainname = Linux + 121,
+    uname = Linux + 122,
+    modify_ldt = Linux + 123,
+    adjtimex = Linux + 124,
+    mprotect = Linux + 125,
+    sigprocmask = Linux + 126,
+    create_module = Linux + 127,
+    init_module = Linux + 128,
+    delete_module = Linux + 129,
+    get_kernel_syms = Linux + 130,
+    quotactl = Linux + 131,
+    getpgid = Linux + 132,
+    fchdir = Linux + 133,
+    bdflush = Linux + 134,
+    sysfs = Linux + 135,
+    personality = Linux + 136,
+    afs_syscall = Linux + 137,
+    setfsuid = Linux + 138,
+    setfsgid = Linux + 139,
+    _llseek = Linux + 140,
+    getdents = Linux + 141,
+    _newselect = Linux + 142,
+    flock = Linux + 143,
+    msync = Linux + 144,
+    readv = Linux + 145,
+    writev = Linux + 146,
+    cacheflush = Linux + 147,
+    cachectl = Linux + 148,
+    sysmips = Linux + 149,
+    getsid = Linux + 151,
+    fdatasync = Linux + 152,
+    _sysctl = Linux + 153,
+    mlock = Linux + 154,
+    munlock = Linux + 155,
+    mlockall = Linux + 156,
+    munlockall = Linux + 157,
+    sched_setparam = Linux + 158,
+    sched_getparam = Linux + 159,
+    sched_setscheduler = Linux + 160,
+    sched_getscheduler = Linux + 161,
+    sched_yield = Linux + 162,
+    sched_get_priority_max = Linux + 163,
+    sched_get_priority_min = Linux + 164,
+    sched_rr_get_interval = Linux + 165,
+    nanosleep = Linux + 166,
+    mremap = Linux + 167,
+    accept = Linux + 168,
+    bind = Linux + 169,
+    connect = Linux + 170,
+    getpeername = Linux + 171,
+    getsockname = Linux + 172,
+    getsockopt = Linux + 173,
+    listen = Linux + 174,
+    recv = Linux + 175,
+    recvfrom = Linux + 176,
+    recvmsg = Linux + 177,
+    send = Linux + 178,
+    sendmsg = Linux + 179,
+    sendto = Linux + 180,
+    setsockopt = Linux + 181,
+    shutdown = Linux + 182,
+    socket = Linux + 183,
+    socketpair = Linux + 184,
+    setresuid = Linux + 185,
+    getresuid = Linux + 186,
+    query_module = Linux + 187,
+    poll = Linux + 188,
+    nfsservctl = Linux + 189,
+    setresgid = Linux + 190,
+    getresgid = Linux + 191,
+    prctl = Linux + 192,
+    rt_sigreturn = Linux + 193,
+    rt_sigaction = Linux + 194,
+    rt_sigprocmask = Linux + 195,
+    rt_sigpending = Linux + 196,
+    rt_sigtimedwait = Linux + 197,
+    rt_sigqueueinfo = Linux + 198,
+    rt_sigsuspend = Linux + 199,
+    pread64 = Linux + 200,
+    pwrite64 = Linux + 201,
+    chown = Linux + 202,
+    getcwd = Linux + 203,
+    capget = Linux + 204,
+    capset = Linux + 205,
+    sigaltstack = Linux + 206,
+    sendfile = Linux + 207,
+    getpmsg = Linux + 208,
+    putpmsg = Linux + 209,
+    mmap2 = Linux + 210,
+    truncate64 = Linux + 211,
+    ftruncate64 = Linux + 212,
+    stat64 = Linux + 213,
+    lstat64 = Linux + 214,
+    fstat64 = Linux + 215,
+    pivot_root = Linux + 216,
+    mincore = Linux + 217,
+    madvise = Linux + 218,
+    getdents64 = Linux + 219,
+    fcntl64 = Linux + 220,
+    reserved221 = Linux + 221,
+    gettid = Linux + 222,
+    readahead = Linux + 223,
+    setxattr = Linux + 224,
+    lsetxattr = Linux + 225,
+    fsetxattr = Linux + 226,
+    getxattr = Linux + 227,
+    lgetxattr = Linux + 228,
+    fgetxattr = Linux + 229,
+    listxattr = Linux + 230,
+    llistxattr = Linux + 231,
+    flistxattr = Linux + 232,
+    removexattr = Linux + 233,
+    lremovexattr = Linux + 234,
+    fremovexattr = Linux + 235,
+    tkill = Linux + 236,
+    sendfile64 = Linux + 237,
+    futex = Linux + 238,
+    sched_setaffinity = Linux + 239,
+    sched_getaffinity = Linux + 240,
+    io_setup = Linux + 241,
+    io_destroy = Linux + 242,
+    io_getevents = Linux + 243,
+    io_submit = Linux + 244,
+    io_cancel = Linux + 245,
+    exit_group = Linux + 246,
+    lookup_dcookie = Linux + 247,
+    epoll_create = Linux + 248,
+    epoll_ctl = Linux + 249,
+    epoll_wait = Linux + 250,
+    remap_file_pages = Linux + 251,
+    set_tid_address = Linux + 252,
+    restart_syscall = Linux + 253,
+    fadvise64 = Linux + 254,
+    statfs64 = Linux + 255,
+    fstatfs64 = Linux + 256,
+    timer_create = Linux + 257,
+    timer_settime = Linux + 258,
+    timer_gettime = Linux + 259,
+    timer_getoverrun = Linux + 260,
+    timer_delete = Linux + 261,
+    clock_settime = Linux + 262,
+    clock_gettime = Linux + 263,
+    clock_getres = Linux + 264,
+    clock_nanosleep = Linux + 265,
+    tgkill = Linux + 266,
+    utimes = Linux + 267,
+    mbind = Linux + 268,
+    get_mempolicy = Linux + 269,
+    set_mempolicy = Linux + 270,
+    mq_open = Linux + 271,
+    mq_unlink = Linux + 272,
+    mq_timedsend = Linux + 273,
+    mq_timedreceive = Linux + 274,
+    mq_notify = Linux + 275,
+    mq_getsetattr = Linux + 276,
+    vserver = Linux + 277,
+    waitid = Linux + 278,
+    add_key = Linux + 280,
+    request_key = Linux + 281,
+    keyctl = Linux + 282,
+    set_thread_area = Linux + 283,
+    inotify_init = Linux + 284,
+    inotify_add_watch = Linux + 285,
+    inotify_rm_watch = Linux + 286,
+    migrate_pages = Linux + 287,
+    openat = Linux + 288,
+    mkdirat = Linux + 289,
+    mknodat = Linux + 290,
+    fchownat = Linux + 291,
+    futimesat = Linux + 292,
+    fstatat64 = Linux + 293,
+    unlinkat = Linux + 294,
+    renameat = Linux + 295,
+    linkat = Linux + 296,
+    symlinkat = Linux + 297,
+    readlinkat = Linux + 298,
+    fchmodat = Linux + 299,
+    faccessat = Linux + 300,
+    pselect6 = Linux + 301,
+    ppoll = Linux + 302,
+    unshare = Linux + 303,
+    splice = Linux + 304,
+    sync_file_range = Linux + 305,
+    tee = Linux + 306,
+    vmsplice = Linux + 307,
+    move_pages = Linux + 308,
+    set_robust_list = Linux + 309,
+    get_robust_list = Linux + 310,
+    kexec_load = Linux + 311,
+    getcpu = Linux + 312,
+    epoll_pwait = Linux + 313,
+    ioprio_set = Linux + 314,
+    ioprio_get = Linux + 315,
+    utimensat = Linux + 316,
+    signalfd = Linux + 317,
+    timerfd = Linux + 318,
+    eventfd = Linux + 319,
+    fallocate = Linux + 320,
+    timerfd_create = Linux + 321,
+    timerfd_gettime = Linux + 322,
+    timerfd_settime = Linux + 323,
+    signalfd4 = Linux + 324,
+    eventfd2 = Linux + 325,
+    epoll_create1 = Linux + 326,
+    dup3 = Linux + 327,
+    pipe2 = Linux + 328,
+    inotify_init1 = Linux + 329,
+    preadv = Linux + 330,
+    pwritev = Linux + 331,
+    rt_tgsigqueueinfo = Linux + 332,
+    perf_event_open = Linux + 333,
+    accept4 = Linux + 334,
+    recvmmsg = Linux + 335,
+    fanotify_init = Linux + 336,
+    fanotify_mark = Linux + 337,
+    prlimit64 = Linux + 338,
+    name_to_handle_at = Linux + 339,
+    open_by_handle_at = Linux + 340,
+    clock_adjtime = Linux + 341,
+    syncfs = Linux + 342,
+    sendmmsg = Linux + 343,
+    setns = Linux + 344,
+    process_vm_readv = Linux + 345,
+    process_vm_writev = Linux + 346,
+    kcmp = Linux + 347,
+    finit_module = Linux + 348,
+    sched_setattr = Linux + 349,
+    sched_getattr = Linux + 350,
+    renameat2 = Linux + 351,
+    seccomp = Linux + 352,
+    getrandom = Linux + 353,
+    memfd_create = Linux + 354,
+    bpf = Linux + 355,
+    execveat = Linux + 356,
+    userfaultfd = Linux + 357,
+    membarrier = Linux + 358,
+    mlock2 = Linux + 359,
+    copy_file_range = Linux + 360,
+    preadv2 = Linux + 361,
+    pwritev2 = Linux + 362,
+    pkey_mprotect = Linux + 363,
+    pkey_alloc = Linux + 364,
+    pkey_free = Linux + 365,
+    statx = Linux + 366,
+    rseq = Linux + 367,
+    io_pgetevents = Linux + 368,
+    semget = Linux + 393,
+    semctl = Linux + 394,
+    shmget = Linux + 395,
+    shmctl = Linux + 396,
+    shmat = Linux + 397,
+    shmdt = Linux + 398,
+    msgget = Linux + 399,
+    msgsnd = Linux + 400,
+    msgrcv = Linux + 401,
+    msgctl = Linux + 402,
+    clock_gettime64 = Linux + 403,
+    clock_settime64 = Linux + 404,
+    clock_adjtime64 = Linux + 405,
+    clock_getres_time64 = Linux + 406,
+    clock_nanosleep_time64 = Linux + 407,
+    timer_gettime64 = Linux + 408,
+    timer_settime64 = Linux + 409,
+    timerfd_gettime64 = Linux + 410,
+    timerfd_settime64 = Linux + 411,
+    utimensat_time64 = Linux + 412,
+    pselect6_time64 = Linux + 413,
+    ppoll_time64 = Linux + 414,
+    io_pgetevents_time64 = Linux + 416,
+    recvmmsg_time64 = Linux + 417,
+    mq_timedsend_time64 = Linux + 418,
+    mq_timedreceive_time64 = Linux + 419,
+    semtimedop_time64 = Linux + 420,
+    rt_sigtimedwait_time64 = Linux + 421,
+    futex_time64 = Linux + 422,
+    sched_rr_get_interval_time64 = Linux + 423,
+    pidfd_send_signal = Linux + 424,
+    io_uring_setup = Linux + 425,
+    io_uring_enter = Linux + 426,
+    io_uring_register = Linux + 427,
+    open_tree = Linux + 428,
+    move_mount = Linux + 429,
+    fsopen = Linux + 430,
+    fsconfig = Linux + 431,
+    fsmount = Linux + 432,
+    fspick = Linux + 433,
+    pidfd_open = Linux + 434,
+    clone3 = Linux + 435,
+    close_range = Linux + 436,
+    openat2 = Linux + 437,
+    pidfd_getfd = Linux + 438,
+    faccessat2 = Linux + 439,
+    process_madvise = Linux + 440,
+    epoll_pwait2 = Linux + 441,
+    mount_setattr = Linux + 442,
+    quotactl_fd = Linux + 443,
+    landlock_create_ruleset = Linux + 444,
+    landlock_add_rule = Linux + 445,
+    landlock_restrict_self = Linux + 446,
+    process_mrelease = Linux + 448,
+    futex_waitv = Linux + 449,
+    set_mempolicy_home_node = Linux + 450,
+};
+
+pub const PowerPC = enum(usize) {
+    restart_syscall = 0,
+    exit = 1,
+    fork = 2,
+    read = 3,
+    write = 4,
+    open = 5,
+    close = 6,
+    waitpid = 7,
+    creat = 8,
+    link = 9,
+    unlink = 10,
+    execve = 11,
+    chdir = 12,
+    time = 13,
+    mknod = 14,
+    chmod = 15,
+    lchown = 16,
+    @"break" = 17,
+    oldstat = 18,
+    lseek = 19,
+    getpid = 20,
+    mount = 21,
+    umount = 22,
+    setuid = 23,
+    getuid = 24,
+    stime = 25,
+    ptrace = 26,
+    alarm = 27,
+    oldfstat = 28,
+    pause = 29,
+    utime = 30,
+    stty = 31,
+    gtty = 32,
+    access = 33,
+    nice = 34,
+    ftime = 35,
+    sync = 36,
+    kill = 37,
+    rename = 38,
+    mkdir = 39,
+    rmdir = 40,
+    dup = 41,
+    pipe = 42,
+    times = 43,
+    prof = 44,
+    brk = 45,
+    setgid = 46,
+    getgid = 47,
+    signal = 48,
+    geteuid = 49,
+    getegid = 50,
+    acct = 51,
+    umount2 = 52,
+    lock = 53,
+    ioctl = 54,
+    fcntl = 55,
+    mpx = 56,
+    setpgid = 57,
+    ulimit = 58,
+    oldolduname = 59,
+    umask = 60,
+    chroot = 61,
+    ustat = 62,
+    dup2 = 63,
+    getppid = 64,
+    getpgrp = 65,
+    setsid = 66,
+    sigaction = 67,
+    sgetmask = 68,
+    ssetmask = 69,
+    setreuid = 70,
+    setregid = 71,
+    sigsuspend = 72,
+    sigpending = 73,
+    sethostname = 74,
+    setrlimit = 75,
+    getrlimit = 76,
+    getrusage = 77,
+    gettimeofday = 78,
+    settimeofday = 79,
+    getgroups = 80,
+    setgroups = 81,
+    select = 82,
+    symlink = 83,
+    oldlstat = 84,
+    readlink = 85,
+    uselib = 86,
+    swapon = 87,
+    reboot = 88,
+    readdir = 89,
+    mmap = 90,
+    munmap = 91,
+    truncate = 92,
+    ftruncate = 93,
+    fchmod = 94,
+    fchown = 95,
+    getpriority = 96,
+    setpriority = 97,
+    profil = 98,
+    statfs = 99,
+    fstatfs = 100,
+    ioperm = 101,
+    socketcall = 102,
+    syslog = 103,
+    setitimer = 104,
+    getitimer = 105,
+    stat = 106,
+    lstat = 107,
+    fstat = 108,
+    olduname = 109,
+    iopl = 110,
+    vhangup = 111,
+    idle = 112,
+    vm86 = 113,
+    wait4 = 114,
+    swapoff = 115,
+    sysinfo = 116,
+    ipc = 117,
+    fsync = 118,
+    sigreturn = 119,
+    clone = 120,
+    setdomainname = 121,
+    uname = 122,
+    modify_ldt = 123,
+    adjtimex = 124,
+    mprotect = 125,
+    sigprocmask = 126,
+    create_module = 127,
+    init_module = 128,
+    delete_module = 129,
+    get_kernel_syms = 130,
+    quotactl = 131,
+    getpgid = 132,
+    fchdir = 133,
+    bdflush = 134,
+    sysfs = 135,
+    personality = 136,
+    afs_syscall = 137,
+    setfsuid = 138,
+    setfsgid = 139,
+    _llseek = 140,
+    getdents = 141,
+    _newselect = 142,
+    flock = 143,
+    msync = 144,
+    readv = 145,
+    writev = 146,
+    getsid = 147,
+    fdatasync = 148,
+    _sysctl = 149,
+    mlock = 150,
+    munlock = 151,
+    mlockall = 152,
+    munlockall = 153,
+    sched_setparam = 154,
+    sched_getparam = 155,
+    sched_setscheduler = 156,
+    sched_getscheduler = 157,
+    sched_yield = 158,
+    sched_get_priority_max = 159,
+    sched_get_priority_min = 160,
+    sched_rr_get_interval = 161,
+    nanosleep = 162,
+    mremap = 163,
+    setresuid = 164,
+    getresuid = 165,
+    query_module = 166,
+    poll = 167,
+    nfsservctl = 168,
+    setresgid = 169,
+    getresgid = 170,
+    prctl = 171,
+    rt_sigreturn = 172,
+    rt_sigaction = 173,
+    rt_sigprocmask = 174,
+    rt_sigpending = 175,
+    rt_sigtimedwait = 176,
+    rt_sigqueueinfo = 177,
+    rt_sigsuspend = 178,
+    pread64 = 179,
+    pwrite64 = 180,
+    chown = 181,
+    getcwd = 182,
+    capget = 183,
+    capset = 184,
+    sigaltstack = 185,
+    sendfile = 186,
+    getpmsg = 187,
+    putpmsg = 188,
+    vfork = 189,
+    ugetrlimit = 190,
+    readahead = 191,
+    mmap2 = 192,
+    truncate64 = 193,
+    ftruncate64 = 194,
+    stat64 = 195,
+    lstat64 = 196,
+    fstat64 = 197,
+    pciconfig_read = 198,
+    pciconfig_write = 199,
+    pciconfig_iobase = 200,
+    multiplexer = 201,
+    getdents64 = 202,
+    pivot_root = 203,
+    fcntl64 = 204,
+    madvise = 205,
+    mincore = 206,
+    gettid = 207,
+    tkill = 208,
+    setxattr = 209,
+    lsetxattr = 210,
+    fsetxattr = 211,
+    getxattr = 212,
+    lgetxattr = 213,
+    fgetxattr = 214,
+    listxattr = 215,
+    llistxattr = 216,
+    flistxattr = 217,
+    removexattr = 218,
+    lremovexattr = 219,
+    fremovexattr = 220,
+    futex = 221,
+    sched_setaffinity = 222,
+    sched_getaffinity = 223,
+    tuxcall = 225,
+    sendfile64 = 226,
+    io_setup = 227,
+    io_destroy = 228,
+    io_getevents = 229,
+    io_submit = 230,
+    io_cancel = 231,
+    set_tid_address = 232,
+    fadvise64 = 233,
+    exit_group = 234,
+    lookup_dcookie = 235,
+    epoll_create = 236,
+    epoll_ctl = 237,
+    epoll_wait = 238,
+    remap_file_pages = 239,
+    timer_create = 240,
+    timer_settime = 241,
+    timer_gettime = 242,
+    timer_getoverrun = 243,
+    timer_delete = 244,
+    clock_settime = 245,
+    clock_gettime = 246,
+    clock_getres = 247,
+    clock_nanosleep = 248,
+    swapcontext = 249,
+    tgkill = 250,
+    utimes = 251,
+    statfs64 = 252,
+    fstatfs64 = 253,
+    fadvise64_64 = 254,
+    rtas = 255,
+    sys_debug_setcontext = 256,
+    migrate_pages = 258,
+    mbind = 259,
+    get_mempolicy = 260,
+    set_mempolicy = 261,
+    mq_open = 262,
+    mq_unlink = 263,
+    mq_timedsend = 264,
+    mq_timedreceive = 265,
+    mq_notify = 266,
+    mq_getsetattr = 267,
+    kexec_load = 268,
+    add_key = 269,
+    request_key = 270,
+    keyctl = 271,
+    waitid = 272,
+    ioprio_set = 273,
+    ioprio_get = 274,
+    inotify_init = 275,
+    inotify_add_watch = 276,
+    inotify_rm_watch = 277,
+    spu_run = 278,
+    spu_create = 279,
+    pselect6 = 280,
+    ppoll = 281,
+    unshare = 282,
+    splice = 283,
+    tee = 284,
+    vmsplice = 285,
+    openat = 286,
+    mkdirat = 287,
+    mknodat = 288,
+    fchownat = 289,
+    futimesat = 290,
+    fstatat64 = 291,
+    unlinkat = 292,
+    renameat = 293,
+    linkat = 294,
+    symlinkat = 295,
+    readlinkat = 296,
+    fchmodat = 297,
+    faccessat = 298,
+    get_robust_list = 299,
+    set_robust_list = 300,
+    move_pages = 301,
+    getcpu = 302,
+    epoll_pwait = 303,
+    utimensat = 304,
+    signalfd = 305,
+    timerfd_create = 306,
+    eventfd = 307,
+    sync_file_range = 308,
+    fallocate = 309,
+    subpage_prot = 310,
+    timerfd_settime = 311,
+    timerfd_gettime = 312,
+    signalfd4 = 313,
+    eventfd2 = 314,
+    epoll_create1 = 315,
+    dup3 = 316,
+    pipe2 = 317,
+    inotify_init1 = 318,
+    perf_event_open = 319,
+    preadv = 320,
+    pwritev = 321,
+    rt_tgsigqueueinfo = 322,
+    fanotify_init = 323,
+    fanotify_mark = 324,
+    prlimit64 = 325,
+    socket = 326,
+    bind = 327,
+    connect = 328,
+    listen = 329,
+    accept = 330,
+    getsockname = 331,
+    getpeername = 332,
+    socketpair = 333,
+    send = 334,
+    sendto = 335,
+    recv = 336,
+    recvfrom = 337,
+    shutdown = 338,
+    setsockopt = 339,
+    getsockopt = 340,
+    sendmsg = 341,
+    recvmsg = 342,
+    recvmmsg = 343,
+    accept4 = 344,
+    name_to_handle_at = 345,
+    open_by_handle_at = 346,
+    clock_adjtime = 347,
+    syncfs = 348,
+    sendmmsg = 349,
+    setns = 350,
+    process_vm_readv = 351,
+    process_vm_writev = 352,
+    finit_module = 353,
+    kcmp = 354,
+    sched_setattr = 355,
+    sched_getattr = 356,
+    renameat2 = 357,
+    seccomp = 358,
+    getrandom = 359,
+    memfd_create = 360,
+    bpf = 361,
+    execveat = 362,
+    switch_endian = 363,
+    userfaultfd = 364,
+    membarrier = 365,
+    mlock2 = 378,
+    copy_file_range = 379,
+    preadv2 = 380,
+    pwritev2 = 381,
+    kexec_file_load = 382,
+    statx = 383,
+    pkey_alloc = 384,
+    pkey_free = 385,
+    pkey_mprotect = 386,
+    rseq = 387,
+    io_pgetevents = 388,
+    semget = 393,
+    semctl = 394,
+    shmget = 395,
+    shmctl = 396,
+    shmat = 397,
+    shmdt = 398,
+    msgget = 399,
+    msgsnd = 400,
+    msgrcv = 401,
+    msgctl = 402,
+    clock_gettime64 = 403,
+    clock_settime64 = 404,
+    clock_adjtime64 = 405,
+    clock_getres_time64 = 406,
+    clock_nanosleep_time64 = 407,
+    timer_gettime64 = 408,
+    timer_settime64 = 409,
+    timerfd_gettime64 = 410,
+    timerfd_settime64 = 411,
+    utimensat_time64 = 412,
+    pselect6_time64 = 413,
+    ppoll_time64 = 414,
+    io_pgetevents_time64 = 416,
+    recvmmsg_time64 = 417,
+    mq_timedsend_time64 = 418,
+    mq_timedreceive_time64 = 419,
+    semtimedop_time64 = 420,
+    rt_sigtimedwait_time64 = 421,
+    futex_time64 = 422,
+    sched_rr_get_interval_time64 = 423,
+    pidfd_send_signal = 424,
+    io_uring_setup = 425,
+    io_uring_enter = 426,
+    io_uring_register = 427,
+    open_tree = 428,
+    move_mount = 429,
+    fsopen = 430,
+    fsconfig = 431,
+    fsmount = 432,
+    fspick = 433,
+    pidfd_open = 434,
+    clone3 = 435,
+    close_range = 436,
+    openat2 = 437,
+    pidfd_getfd = 438,
+    faccessat2 = 439,
+    process_madvise = 440,
+    epoll_pwait2 = 441,
+    mount_setattr = 442,
+    quotactl_fd = 443,
+    landlock_create_ruleset = 444,
+    landlock_add_rule = 445,
+    landlock_restrict_self = 446,
+    process_mrelease = 448,
+    futex_waitv = 449,
+    set_mempolicy_home_node = 450,
+};
+
+pub const PowerPC64 = enum(usize) {
+    restart_syscall = 0,
+    exit = 1,
+    fork = 2,
+    read = 3,
+    write = 4,
+    open = 5,
+    close = 6,
+    waitpid = 7,
+    creat = 8,
+    link = 9,
+    unlink = 10,
+    execve = 11,
+    chdir = 12,
+    time = 13,
+    mknod = 14,
+    chmod = 15,
+    lchown = 16,
+    @"break" = 17,
+    oldstat = 18,
+    lseek = 19,
+    getpid = 20,
+    mount = 21,
+    umount = 22,
+    setuid = 23,
+    getuid = 24,
+    stime = 25,
+    ptrace = 26,
+    alarm = 27,
+    oldfstat = 28,
+    pause = 29,
+    utime = 30,
+    stty = 31,
+    gtty = 32,
+    access = 33,
+    nice = 34,
+    ftime = 35,
+    sync = 36,
+    kill = 37,
+    rename = 38,
+    mkdir = 39,
+    rmdir = 40,
+    dup = 41,
+    pipe = 42,
+    times = 43,
+    prof = 44,
+    brk = 45,
+    setgid = 46,
+    getgid = 47,
+    signal = 48,
+    geteuid = 49,
+    getegid = 50,
+    acct = 51,
+    umount2 = 52,
+    lock = 53,
+    ioctl = 54,
+    fcntl = 55,
+    mpx = 56,
+    setpgid = 57,
+    ulimit = 58,
+    oldolduname = 59,
+    umask = 60,
+    chroot = 61,
+    ustat = 62,
+    dup2 = 63,
+    getppid = 64,
+    getpgrp = 65,
+    setsid = 66,
+    sigaction = 67,
+    sgetmask = 68,
+    ssetmask = 69,
+    setreuid = 70,
+    setregid = 71,
+    sigsuspend = 72,
+    sigpending = 73,
+    sethostname = 74,
+    setrlimit = 75,
+    getrlimit = 76,
+    getrusage = 77,
+    gettimeofday = 78,
+    settimeofday = 79,
+    getgroups = 80,
+    setgroups = 81,
+    select = 82,
+    symlink = 83,
+    oldlstat = 84,
+    readlink = 85,
+    uselib = 86,
+    swapon = 87,
+    reboot = 88,
+    readdir = 89,
+    mmap = 90,
+    munmap = 91,
+    truncate = 92,
+    ftruncate = 93,
+    fchmod = 94,
+    fchown = 95,
+    getpriority = 96,
+    setpriority = 97,
+    profil = 98,
+    statfs = 99,
+    fstatfs = 100,
+    ioperm = 101,
+    socketcall = 102,
+    syslog = 103,
+    setitimer = 104,
+    getitimer = 105,
+    stat = 106,
+    lstat = 107,
+    fstat = 108,
+    olduname = 109,
+    iopl = 110,
+    vhangup = 111,
+    idle = 112,
+    vm86 = 113,
+    wait4 = 114,
+    swapoff = 115,
+    sysinfo = 116,
+    ipc = 117,
+    fsync = 118,
+    sigreturn = 119,
+    clone = 120,
+    setdomainname = 121,
+    uname = 122,
+    modify_ldt = 123,
+    adjtimex = 124,
+    mprotect = 125,
+    sigprocmask = 126,
+    create_module = 127,
+    init_module = 128,
+    delete_module = 129,
+    get_kernel_syms = 130,
+    quotactl = 131,
+    getpgid = 132,
+    fchdir = 133,
+    bdflush = 134,
+    sysfs = 135,
+    personality = 136,
+    afs_syscall = 137,
+    setfsuid = 138,
+    setfsgid = 139,
+    _llseek = 140,
+    getdents = 141,
+    _newselect = 142,
+    flock = 143,
+    msync = 144,
+    readv = 145,
+    writev = 146,
+    getsid = 147,
+    fdatasync = 148,
+    _sysctl = 149,
+    mlock = 150,
+    munlock = 151,
+    mlockall = 152,
+    munlockall = 153,
+    sched_setparam = 154,
+    sched_getparam = 155,
+    sched_setscheduler = 156,
+    sched_getscheduler = 157,
+    sched_yield = 158,
+    sched_get_priority_max = 159,
+    sched_get_priority_min = 160,
+    sched_rr_get_interval = 161,
+    nanosleep = 162,
+    mremap = 163,
+    setresuid = 164,
+    getresuid = 165,
+    query_module = 166,
+    poll = 167,
+    nfsservctl = 168,
+    setresgid = 169,
+    getresgid = 170,
+    prctl = 171,
+    rt_sigreturn = 172,
+    rt_sigaction = 173,
+    rt_sigprocmask = 174,
+    rt_sigpending = 175,
+    rt_sigtimedwait = 176,
+    rt_sigqueueinfo = 177,
+    rt_sigsuspend = 178,
+    pread64 = 179,
+    pwrite64 = 180,
+    chown = 181,
+    getcwd = 182,
+    capget = 183,
+    capset = 184,
+    sigaltstack = 185,
+    sendfile = 186,
+    getpmsg = 187,
+    putpmsg = 188,
+    vfork = 189,
+    ugetrlimit = 190,
+    readahead = 191,
+    pciconfig_read = 198,
+    pciconfig_write = 199,
+    pciconfig_iobase = 200,
+    multiplexer = 201,
+    getdents64 = 202,
+    pivot_root = 203,
+    madvise = 205,
+    mincore = 206,
+    gettid = 207,
+    tkill = 208,
+    setxattr = 209,
+    lsetxattr = 210,
+    fsetxattr = 211,
+    getxattr = 212,
+    lgetxattr = 213,
+    fgetxattr = 214,
+    listxattr = 215,
+    llistxattr = 216,
+    flistxattr = 217,
+    removexattr = 218,
+    lremovexattr = 219,
+    fremovexattr = 220,
+    futex = 221,
+    sched_setaffinity = 222,
+    sched_getaffinity = 223,
+    tuxcall = 225,
+    io_setup = 227,
+    io_destroy = 228,
+    io_getevents = 229,
+    io_submit = 230,
+    io_cancel = 231,
+    set_tid_address = 232,
+    fadvise64 = 233,
+    exit_group = 234,
+    lookup_dcookie = 235,
+    epoll_create = 236,
+    epoll_ctl = 237,
+    epoll_wait = 238,
+    remap_file_pages = 239,
+    timer_create = 240,
+    timer_settime = 241,
+    timer_gettime = 242,
+    timer_getoverrun = 243,
+    timer_delete = 244,
+    clock_settime = 245,
+    clock_gettime = 246,
+    clock_getres = 247,
+    clock_nanosleep = 248,
+    swapcontext = 249,
+    tgkill = 250,
+    utimes = 251,
+    statfs64 = 252,
+    fstatfs64 = 253,
+    rtas = 255,
+    sys_debug_setcontext = 256,
+    migrate_pages = 258,
+    mbind = 259,
+    get_mempolicy = 260,
+    set_mempolicy = 261,
+    mq_open = 262,
+    mq_unlink = 263,
+    mq_timedsend = 264,
+    mq_timedreceive = 265,
+    mq_notify = 266,
+    mq_getsetattr = 267,
+    kexec_load = 268,
+    add_key = 269,
+    request_key = 270,
+    keyctl = 271,
+    waitid = 272,
+    ioprio_set = 273,
+    ioprio_get = 274,
+    inotify_init = 275,
+    inotify_add_watch = 276,
+    inotify_rm_watch = 277,
+    spu_run = 278,
+    spu_create = 279,
+    pselect6 = 280,
+    ppoll = 281,
+    unshare = 282,
+    splice = 283,
+    tee = 284,
+    vmsplice = 285,
+    openat = 286,
+    mkdirat = 287,
+    mknodat = 288,
+    fchownat = 289,
+    futimesat = 290,
+    fstatat64 = 291,
+    unlinkat = 292,
+    renameat = 293,
+    linkat = 294,
+    symlinkat = 295,
+    readlinkat = 296,
+    fchmodat = 297,
+    faccessat = 298,
+    get_robust_list = 299,
+    set_robust_list = 300,
+    move_pages = 301,
+    getcpu = 302,
+    epoll_pwait = 303,
+    utimensat = 304,
+    signalfd = 305,
+    timerfd_create = 306,
+    eventfd = 307,
+    sync_file_range = 308,
+    fallocate = 309,
+    subpage_prot = 310,
+    timerfd_settime = 311,
+    timerfd_gettime = 312,
+    signalfd4 = 313,
+    eventfd2 = 314,
+    epoll_create1 = 315,
+    dup3 = 316,
+    pipe2 = 317,
+    inotify_init1 = 318,
+    perf_event_open = 319,
+    preadv = 320,
+    pwritev = 321,
+    rt_tgsigqueueinfo = 322,
+    fanotify_init = 323,
+    fanotify_mark = 324,
+    prlimit64 = 325,
+    socket = 326,
+    bind = 327,
+    connect = 328,
+    listen = 329,
+    accept = 330,
+    getsockname = 331,
+    getpeername = 332,
+    socketpair = 333,
+    send = 334,
+    sendto = 335,
+    recv = 336,
+    recvfrom = 337,
+    shutdown = 338,
+    setsockopt = 339,
+    getsockopt = 340,
+    sendmsg = 341,
+    recvmsg = 342,
+    recvmmsg = 343,
+    accept4 = 344,
+    name_to_handle_at = 345,
+    open_by_handle_at = 346,
+    clock_adjtime = 347,
+    syncfs = 348,
+    sendmmsg = 349,
+    setns = 350,
+    process_vm_readv = 351,
+    process_vm_writev = 352,
+    finit_module = 353,
+    kcmp = 354,
+    sched_setattr = 355,
+    sched_getattr = 356,
+    renameat2 = 357,
+    seccomp = 358,
+    getrandom = 359,
+    memfd_create = 360,
+    bpf = 361,
+    execveat = 362,
+    switch_endian = 363,
+    userfaultfd = 364,
+    membarrier = 365,
+    mlock2 = 378,
+    copy_file_range = 379,
+    preadv2 = 380,
+    pwritev2 = 381,
+    kexec_file_load = 382,
+    statx = 383,
+    pkey_alloc = 384,
+    pkey_free = 385,
+    pkey_mprotect = 386,
+    rseq = 387,
+    io_pgetevents = 388,
+    semtimedop = 392,
+    semget = 393,
+    semctl = 394,
+    shmget = 395,
+    shmctl = 396,
+    shmat = 397,
+    shmdt = 398,
+    msgget = 399,
+    msgsnd = 400,
+    msgrcv = 401,
+    msgctl = 402,
+    pidfd_send_signal = 424,
+    io_uring_setup = 425,
+    io_uring_enter = 426,
+    io_uring_register = 427,
+    open_tree = 428,
+    move_mount = 429,
+    fsopen = 430,
+    fsconfig = 431,
+    fsmount = 432,
+    fspick = 433,
+    pidfd_open = 434,
+    clone3 = 435,
+    close_range = 436,
+    openat2 = 437,
+    pidfd_getfd = 438,
+    faccessat2 = 439,
+    process_madvise = 440,
+    epoll_pwait2 = 441,
+    mount_setattr = 442,
+    quotactl_fd = 443,
+    landlock_create_ruleset = 444,
+    landlock_add_rule = 445,
+    landlock_restrict_self = 446,
+    process_mrelease = 448,
+    futex_waitv = 449,
+    set_mempolicy_home_node = 450,
+};
+
+pub const Arm64 = enum(usize) {
+    io_setup = 0,
+    io_destroy = 1,
+    io_submit = 2,
+    io_cancel = 3,
+    io_getevents = 4,
+    setxattr = 5,
+    lsetxattr = 6,
+    fsetxattr = 7,
+    getxattr = 8,
+    lgetxattr = 9,
+    fgetxattr = 10,
+    listxattr = 11,
+    llistxattr = 12,
+    flistxattr = 13,
+    removexattr = 14,
+    lremovexattr = 15,
+    fremovexattr = 16,
+    getcwd = 17,
+    lookup_dcookie = 18,
+    eventfd2 = 19,
+    epoll_create1 = 20,
+    epoll_ctl = 21,
+    epoll_pwait = 22,
+    dup = 23,
+    dup3 = 24,
+    fcntl = 25,
+    inotify_init1 = 26,
+    inotify_add_watch = 27,
+    inotify_rm_watch = 28,
+    ioctl = 29,
+    ioprio_set = 30,
+    ioprio_get = 31,
+    flock = 32,
+    mknodat = 33,
+    mkdirat = 34,
+    unlinkat = 35,
+    symlinkat = 36,
+    linkat = 37,
+    renameat = 38,
+    umount2 = 39,
+    mount = 40,
+    pivot_root = 41,
+    nfsservctl = 42,
+    statfs = 43,
+    fstatfs = 44,
+    truncate = 45,
+    ftruncate = 46,
+    fallocate = 47,
+    faccessat = 48,
+    chdir = 49,
+    fchdir = 50,
+    chroot = 51,
+    fchmod = 52,
+    fchmodat = 53,
+    fchownat = 54,
+    fchown = 55,
+    openat = 56,
+    close = 57,
+    vhangup = 58,
+    pipe2 = 59,
+    quotactl = 60,
+    getdents64 = 61,
+    lseek = 62,
+    read = 63,
+    write = 64,
+    readv = 65,
+    writev = 66,
+    pread64 = 67,
+    pwrite64 = 68,
+    preadv = 69,
+    pwritev = 70,
+    sendfile = 71,
+    pselect6 = 72,
+    ppoll = 73,
+    signalfd4 = 74,
+    vmsplice = 75,
+    splice = 76,
+    tee = 77,
+    readlinkat = 78,
+    fstatat = 79,
+    fstat = 80,
+    sync = 81,
+    fsync = 82,
+    fdatasync = 83,
+    sync_file_range = 84,
+    timerfd_create = 85,
+    timerfd_settime = 86,
+    timerfd_gettime = 87,
+    utimensat = 88,
+    acct = 89,
+    capget = 90,
+    capset = 91,
+    personality = 92,
+    exit = 93,
+    exit_group = 94,
+    waitid = 95,
+    set_tid_address = 96,
+    unshare = 97,
+    futex = 98,
+    set_robust_list = 99,
+    get_robust_list = 100,
+    nanosleep = 101,
+    getitimer = 102,
+    setitimer = 103,
+    kexec_load = 104,
+    init_module = 105,
+    delete_module = 106,
+    timer_create = 107,
+    timer_gettime = 108,
+    timer_getoverrun = 109,
+    timer_settime = 110,
+    timer_delete = 111,
+    clock_settime = 112,
+    clock_gettime = 113,
+    clock_getres = 114,
+    clock_nanosleep = 115,
+    syslog = 116,
+    ptrace = 117,
+    sched_setparam = 118,
+    sched_setscheduler = 119,
+    sched_getscheduler = 120,
+    sched_getparam = 121,
+    sched_setaffinity = 122,
+    sched_getaffinity = 123,
+    sched_yield = 124,
+    sched_get_priority_max = 125,
+    sched_get_priority_min = 126,
+    sched_rr_get_interval = 127,
+    restart_syscall = 128,
+    kill = 129,
+    tkill = 130,
+    tgkill = 131,
+    sigaltstack = 132,
+    rt_sigsuspend = 133,
+    rt_sigaction = 134,
+    rt_sigprocmask = 135,
+    rt_sigpending = 136,
+    rt_sigtimedwait = 137,
+    rt_sigqueueinfo = 138,
+    rt_sigreturn = 139,
+    setpriority = 140,
+    getpriority = 141,
+    reboot = 142,
+    setregid = 143,
+    setgid = 144,
+    setreuid = 145,
+    setuid = 146,
+    setresuid = 147,
+    getresuid = 148,
+    setresgid = 149,
+    getresgid = 150,
+    setfsuid = 151,
+    setfsgid = 152,
+    times = 153,
+    setpgid = 154,
+    getpgid = 155,
+    getsid = 156,
+    setsid = 157,
+    getgroups = 158,
+    setgroups = 159,
+    uname = 160,
+    sethostname = 161,
+    setdomainname = 162,
+    getrlimit = 163,
+    setrlimit = 164,
+    getrusage = 165,
+    umask = 166,
+    prctl = 167,
+    getcpu = 168,
+    gettimeofday = 169,
+    settimeofday = 170,
+    adjtimex = 171,
+    getpid = 172,
+    getppid = 173,
+    getuid = 174,
+    geteuid = 175,
+    getgid = 176,
+    getegid = 177,
+    gettid = 178,
+    sysinfo = 179,
+    mq_open = 180,
+    mq_unlink = 181,
+    mq_timedsend = 182,
+    mq_timedreceive = 183,
+    mq_notify = 184,
+    mq_getsetattr = 185,
+    msgget = 186,
+    msgctl = 187,
+    msgrcv = 188,
+    msgsnd = 189,
+    semget = 190,
+    semctl = 191,
+    semtimedop = 192,
+    semop = 193,
+    shmget = 194,
+    shmctl = 195,
+    shmat = 196,
+    shmdt = 197,
+    socket = 198,
+    socketpair = 199,
+    bind = 200,
+    listen = 201,
+    accept = 202,
+    connect = 203,
+    getsockname = 204,
+    getpeername = 205,
+    sendto = 206,
+    recvfrom = 207,
+    setsockopt = 208,
+    getsockopt = 209,
+    shutdown = 210,
+    sendmsg = 211,
+    recvmsg = 212,
+    readahead = 213,
+    brk = 214,
+    munmap = 215,
+    mremap = 216,
+    add_key = 217,
+    request_key = 218,
+    keyctl = 219,
+    clone = 220,
+    execve = 221,
+    mmap = 222,
+    fadvise64 = 223,
+    swapon = 224,
+    swapoff = 225,
+    mprotect = 226,
+    msync = 227,
+    mlock = 228,
+    munlock = 229,
+    mlockall = 230,
+    munlockall = 231,
+    mincore = 232,
+    madvise = 233,
+    remap_file_pages = 234,
+    mbind = 235,
+    get_mempolicy = 236,
+    set_mempolicy = 237,
+    migrate_pages = 238,
+    move_pages = 239,
+    rt_tgsigqueueinfo = 240,
+    perf_event_open = 241,
+    accept4 = 242,
+    recvmmsg = 243,
+    wait4 = 260,
+    prlimit64 = 261,
+    fanotify_init = 262,
+    fanotify_mark = 263,
+    name_to_handle_at = 264,
+    open_by_handle_at = 265,
+    clock_adjtime = 266,
+    syncfs = 267,
+    setns = 268,
+    sendmmsg = 269,
+    process_vm_readv = 270,
+    process_vm_writev = 271,
+    kcmp = 272,
+    finit_module = 273,
+    sched_setattr = 274,
+    sched_getattr = 275,
+    renameat2 = 276,
+    seccomp = 277,
+    getrandom = 278,
+    memfd_create = 279,
+    bpf = 280,
+    execveat = 281,
+    userfaultfd = 282,
+    membarrier = 283,
+    mlock2 = 284,
+    copy_file_range = 285,
+    preadv2 = 286,
+    pwritev2 = 287,
+    pkey_mprotect = 288,
+    pkey_alloc = 289,
+    pkey_free = 290,
+    statx = 291,
+    io_pgetevents = 292,
+    rseq = 293,
+    kexec_file_load = 294,
+    pidfd_send_signal = 424,
+    io_uring_setup = 425,
+    io_uring_enter = 426,
+    io_uring_register = 427,
+    open_tree = 428,
+    move_mount = 429,
+    fsopen = 430,
+    fsconfig = 431,
+    fsmount = 432,
+    fspick = 433,
+    pidfd_open = 434,
+    clone3 = 435,
+    close_range = 436,
+    openat2 = 437,
+    pidfd_getfd = 438,
+    faccessat2 = 439,
+    process_madvise = 440,
+    epoll_pwait2 = 441,
+    mount_setattr = 442,
+    quotactl_fd = 443,
+    landlock_create_ruleset = 444,
+    landlock_add_rule = 445,
+    landlock_restrict_self = 446,
+    memfd_secret = 447,
+    process_mrelease = 448,
+    futex_waitv = 449,
+    set_mempolicy_home_node = 450,
+};
+
+pub const RiscV64 = enum(usize) {
+    pub const arch_specific_syscall = 244;
+
+    io_setup = 0,
+    io_destroy = 1,
+    io_submit = 2,
+    io_cancel = 3,
+    io_getevents = 4,
+    setxattr = 5,
+    lsetxattr = 6,
+    fsetxattr = 7,
+    getxattr = 8,
+    lgetxattr = 9,
+    fgetxattr = 10,
+    listxattr = 11,
+    llistxattr = 12,
+    flistxattr = 13,
+    removexattr = 14,
+    lremovexattr = 15,
+    fremovexattr = 16,
+    getcwd = 17,
+    lookup_dcookie = 18,
+    eventfd2 = 19,
+    epoll_create1 = 20,
+    epoll_ctl = 21,
+    epoll_pwait = 22,
+    dup = 23,
+    dup3 = 24,
+    fcntl = 25,
+    inotify_init1 = 26,
+    inotify_add_watch = 27,
+    inotify_rm_watch = 28,
+    ioctl = 29,
+    ioprio_set = 30,
+    ioprio_get = 31,
+    flock = 32,
+    mknodat = 33,
+    mkdirat = 34,
+    unlinkat = 35,
+    symlinkat = 36,
+    linkat = 37,
+    umount2 = 39,
+    mount = 40,
+    pivot_root = 41,
+    nfsservctl = 42,
+    statfs = 43,
+    fstatfs = 44,
+    truncate = 45,
+    ftruncate = 46,
+    fallocate = 47,
+    faccessat = 48,
+    chdir = 49,
+    fchdir = 50,
+    chroot = 51,
+    fchmod = 52,
+    fchmodat = 53,
+    fchownat = 54,
+    fchown = 55,
+    openat = 56,
+    close = 57,
+    vhangup = 58,
+    pipe2 = 59,
+    quotactl = 60,
+    getdents64 = 61,
+    lseek = 62,
+    read = 63,
+    write = 64,
+    readv = 65,
+    writev = 66,
+    pread64 = 67,
+    pwrite64 = 68,
+    preadv = 69,
+    pwritev = 70,
+    sendfile = 71,
+    pselect6 = 72,
+    ppoll = 73,
+    signalfd4 = 74,
+    vmsplice = 75,
+    splice = 76,
+    tee = 77,
+    readlinkat = 78,
+    fstatat = 79,
+    fstat = 80,
+    sync = 81,
+    fsync = 82,
+    fdatasync = 83,
+    sync_file_range = 84,
+    timerfd_create = 85,
+    timerfd_settime = 86,
+    timerfd_gettime = 87,
+    utimensat = 88,
+    acct = 89,
+    capget = 90,
+    capset = 91,
+    personality = 92,
+    exit = 93,
+    exit_group = 94,
+    waitid = 95,
+    set_tid_address = 96,
+    unshare = 97,
+    futex = 98,
+    set_robust_list = 99,
+    get_robust_list = 100,
+    nanosleep = 101,
+    getitimer = 102,
+    setitimer = 103,
+    kexec_load = 104,
+    init_module = 105,
+    delete_module = 106,
+    timer_create = 107,
+    timer_gettime = 108,
+    timer_getoverrun = 109,
+    timer_settime = 110,
+    timer_delete = 111,
+    clock_settime = 112,
+    clock_gettime = 113,
+    clock_getres = 114,
+    clock_nanosleep = 115,
+    syslog = 116,
+    ptrace = 117,
+    sched_setparam = 118,
+    sched_setscheduler = 119,
+    sched_getscheduler = 120,
+    sched_getparam = 121,
+    sched_setaffinity = 122,
+    sched_getaffinity = 123,
+    sched_yield = 124,
+    sched_get_priority_max = 125,
+    sched_get_priority_min = 126,
+    sched_rr_get_interval = 127,
+    restart_syscall = 128,
+    kill = 129,
+    tkill = 130,
+    tgkill = 131,
+    sigaltstack = 132,
+    rt_sigsuspend = 133,
+    rt_sigaction = 134,
+    rt_sigprocmask = 135,
+    rt_sigpending = 136,
+    rt_sigtimedwait = 137,
+    rt_sigqueueinfo = 138,
+    rt_sigreturn = 139,
+    setpriority = 140,
+    getpriority = 141,
+    reboot = 142,
+    setregid = 143,
+    setgid = 144,
+    setreuid = 145,
+    setuid = 146,
+    setresuid = 147,
+    getresuid = 148,
+    setresgid = 149,
+    getresgid = 150,
+    setfsuid = 151,
+    setfsgid = 152,
+    times = 153,
+    setpgid = 154,
+    getpgid = 155,
+    getsid = 156,
+    setsid = 157,
+    getgroups = 158,
+    setgroups = 159,
+    uname = 160,
+    sethostname = 161,
+    setdomainname = 162,
+    getrlimit = 163,
+    setrlimit = 164,
+    getrusage = 165,
+    umask = 166,
+    prctl = 167,
+    getcpu = 168,
+    gettimeofday = 169,
+    settimeofday = 170,
+    adjtimex = 171,
+    getpid = 172,
+    getppid = 173,
+    getuid = 174,
+    geteuid = 175,
+    getgid = 176,
+    getegid = 177,
+    gettid = 178,
+    sysinfo = 179,
+    mq_open = 180,
+    mq_unlink = 181,
+    mq_timedsend = 182,
+    mq_timedreceive = 183,
+    mq_notify = 184,
+    mq_getsetattr = 185,
+    msgget = 186,
+    msgctl = 187,
+    msgrcv = 188,
+    msgsnd = 189,
+    semget = 190,
+    semctl = 191,
+    semtimedop = 192,
+    semop = 193,
+    shmget = 194,
+    shmctl = 195,
+    shmat = 196,
+    shmdt = 197,
+    socket = 198,
+    socketpair = 199,
+    bind = 200,
+    listen = 201,
+    accept = 202,
+    connect = 203,
+    getsockname = 204,
+    getpeername = 205,
+    sendto = 206,
+    recvfrom = 207,
+    setsockopt = 208,
+    getsockopt = 209,
+    shutdown = 210,
+    sendmsg = 211,
+    recvmsg = 212,
+    readahead = 213,
+    brk = 214,
+    munmap = 215,
+    mremap = 216,
+    add_key = 217,
+    request_key = 218,
+    keyctl = 219,
+    clone = 220,
+    execve = 221,
+    mmap = 222,
+    fadvise64 = 223,
+    swapon = 224,
+    swapoff = 225,
+    mprotect = 226,
+    msync = 227,
+    mlock = 228,
+    munlock = 229,
+    mlockall = 230,
+    munlockall = 231,
+    mincore = 232,
+    madvise = 233,
+    remap_file_pages = 234,
+    mbind = 235,
+    get_mempolicy = 236,
+    set_mempolicy = 237,
+    migrate_pages = 238,
+    move_pages = 239,
+    rt_tgsigqueueinfo = 240,
+    perf_event_open = 241,
+    accept4 = 242,
+    recvmmsg = 243,
+    wait4 = 260,
+    prlimit64 = 261,
+    fanotify_init = 262,
+    fanotify_mark = 263,
+    name_to_handle_at = 264,
+    open_by_handle_at = 265,
+    clock_adjtime = 266,
+    syncfs = 267,
+    setns = 268,
+    sendmmsg = 269,
+    process_vm_readv = 270,
+    process_vm_writev = 271,
+    kcmp = 272,
+    finit_module = 273,
+    sched_setattr = 274,
+    sched_getattr = 275,
+    renameat2 = 276,
+    seccomp = 277,
+    getrandom = 278,
+    memfd_create = 279,
+    bpf = 280,
+    execveat = 281,
+    userfaultfd = 282,
+    membarrier = 283,
+    mlock2 = 284,
+    copy_file_range = 285,
+    preadv2 = 286,
+    pwritev2 = 287,
+    pkey_mprotect = 288,
+    pkey_alloc = 289,
+    pkey_free = 290,
+    statx = 291,
+    io_pgetevents = 292,
+    rseq = 293,
+    kexec_file_load = 294,
+    pidfd_send_signal = 424,
+    io_uring_setup = 425,
+    io_uring_enter = 426,
+    io_uring_register = 427,
+    open_tree = 428,
+    move_mount = 429,
+    fsopen = 430,
+    fsconfig = 431,
+    fsmount = 432,
+    fspick = 433,
+    pidfd_open = 434,
+    clone3 = 435,
+    close_range = 436,
+    openat2 = 437,
+    pidfd_getfd = 438,
+    faccessat2 = 439,
+    process_madvise = 440,
+    epoll_pwait2 = 441,
+    mount_setattr = 442,
+    quotactl_fd = 443,
+    landlock_create_ruleset = 444,
+    landlock_add_rule = 445,
+    landlock_restrict_self = 446,
+    process_mrelease = 448,
+    futex_waitv = 449,
+    set_mempolicy_home_node = 450,
+
+    riscv_flush_icache = arch_specific_syscall + 15,
+};
diff --git a/lib/std/os/linux/tls.zig b/lib/std/os/linux/tls.zig
index 770ab9b92c..d91f7d7a9e 100644
--- a/lib/std/os/linux/tls.zig
+++ b/lib/std/os/linux/tls.zig
@@ -49,7 +49,7 @@ const TLSVariant = enum {
 
 const tls_variant = switch (native_arch) {
     .arm, .armeb, .thumb, .aarch64, .aarch64_be, .riscv32, .riscv64, .mips, .mipsel, .powerpc, .powerpc64, .powerpc64le => TLSVariant.VariantI,
-    .x86_64, .i386, .sparcv9 => TLSVariant.VariantII,
+    .x86_64, .i386, .sparc64 => TLSVariant.VariantII,
     else => @compileError("undefined tls_variant for this architecture"),
 };
 
@@ -174,7 +174,7 @@ pub fn setThreadPointer(addr: usize) void {
                 : [addr] "r" (addr),
             );
         },
-        .sparcv9 => {
+        .sparc64 => {
             asm volatile (
                 \\ mov %[addr], %%g7
                 :
diff --git a/lib/std/os/linux/x86_64.zig b/lib/std/os/linux/x86_64.zig
index 0aaa28262c..3653c31584 100644
--- a/lib/std/os/linux/x86_64.zig
+++ b/lib/std/os/linux/x86_64.zig
@@ -1,6 +1,7 @@
 const std = @import("../../std.zig");
 const maxInt = std.math.maxInt;
 const linux = std.os.linux;
+const SYS = linux.SYS;
 const iovec = std.os.iovec;
 const iovec_const = std.os.iovec_const;
 
@@ -100,7 +101,12 @@ pub fn syscall6(
 }
 
 /// This matches the libc clone function.
-pub extern fn clone(func: fn (arg: usize) callconv(.C) u8, stack: usize, flags: usize, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
+pub extern fn clone(func: CloneFn, stack: usize, flags: usize, arg: usize, ptid: *i32, tls: usize, ctid: *i32) usize;
+
+const CloneFn = switch (@import("builtin").zig_backend) {
+    .stage1 => fn (arg: usize) callconv(.C) u8,
+    else => *const fn (arg: usize) callconv(.C) u8,
+};
 
 pub const restore = restore_rt;
 
@@ -118,369 +124,6 @@ pub const nlink_t = usize;
 pub const blksize_t = isize;
 pub const blkcnt_t = isize;
 
-pub const SYS = enum(usize) {
-    read = 0,
-    write = 1,
-    open = 2,
-    close = 3,
-    stat = 4,
-    fstat = 5,
-    lstat = 6,
-    poll = 7,
-    lseek = 8,
-    mmap = 9,
-    mprotect = 10,
-    munmap = 11,
-    brk = 12,
-    rt_sigaction = 13,
-    rt_sigprocmask = 14,
-    rt_sigreturn = 15,
-    ioctl = 16,
-    pread = 17,
-    pwrite = 18,
-    readv = 19,
-    writev = 20,
-    access = 21,
-    pipe = 22,
-    select = 23,
-    sched_yield = 24,
-    mremap = 25,
-    msync = 26,
-    mincore = 27,
-    madvise = 28,
-    shmget = 29,
-    shmat = 30,
-    shmctl = 31,
-    dup = 32,
-    dup2 = 33,
-    pause = 34,
-    nanosleep = 35,
-    getitimer = 36,
-    alarm = 37,
-    setitimer = 38,
-    getpid = 39,
-    sendfile = 40,
-    socket = 41,
-    connect = 42,
-    accept = 43,
-    sendto = 44,
-    recvfrom = 45,
-    sendmsg = 46,
-    recvmsg = 47,
-    shutdown = 48,
-    bind = 49,
-    listen = 50,
-    getsockname = 51,
-    getpeername = 52,
-    socketpair = 53,
-    setsockopt = 54,
-    getsockopt = 55,
-    clone = 56,
-    fork = 57,
-    vfork = 58,
-    execve = 59,
-    exit = 60,
-    wait4 = 61,
-    kill = 62,
-    uname = 63,
-    semget = 64,
-    semop = 65,
-    semctl = 66,
-    shmdt = 67,
-    msgget = 68,
-    msgsnd = 69,
-    msgrcv = 70,
-    msgctl = 71,
-    fcntl = 72,
-    flock = 73,
-    fsync = 74,
-    fdatasync = 75,
-    truncate = 76,
-    ftruncate = 77,
-    getdents = 78,
-    getcwd = 79,
-    chdir = 80,
-    fchdir = 81,
-    rename = 82,
-    mkdir = 83,
-    rmdir = 84,
-    creat = 85,
-    link = 86,
-    unlink = 87,
-    symlink = 88,
-    readlink = 89,
-    chmod = 90,
-    fchmod = 91,
-    chown = 92,
-    fchown = 93,
-    lchown = 94,
-    umask = 95,
-    gettimeofday = 96,
-    getrlimit = 97,
-    getrusage = 98,
-    sysinfo = 99,
-    times = 100,
-    ptrace = 101,
-    getuid = 102,
-    syslog = 103,
-    getgid = 104,
-    setuid = 105,
-    setgid = 106,
-    geteuid = 107,
-    getegid = 108,
-    setpgid = 109,
-    getppid = 110,
-    getpgrp = 111,
-    setsid = 112,
-    setreuid = 113,
-    setregid = 114,
-    getgroups = 115,
-    setgroups = 116,
-    setresuid = 117,
-    getresuid = 118,
-    setresgid = 119,
-    getresgid = 120,
-    getpgid = 121,
-    setfsuid = 122,
-    setfsgid = 123,
-    getsid = 124,
-    capget = 125,
-    capset = 126,
-    rt_sigpending = 127,
-    rt_sigtimedwait = 128,
-    rt_sigqueueinfo = 129,
-    rt_sigsuspend = 130,
-    sigaltstack = 131,
-    utime = 132,
-    mknod = 133,
-    uselib = 134,
-    personality = 135,
-    ustat = 136,
-    statfs = 137,
-    fstatfs = 138,
-    sysfs = 139,
-    getpriority = 140,
-    setpriority = 141,
-    sched_setparam = 142,
-    sched_getparam = 143,
-    sched_setscheduler = 144,
-    sched_getscheduler = 145,
-    sched_get_priority_max = 146,
-    sched_get_priority_min = 147,
-    sched_rr_get_interval = 148,
-    mlock = 149,
-    munlock = 150,
-    mlockall = 151,
-    munlockall = 152,
-    vhangup = 153,
-    modify_ldt = 154,
-    pivot_root = 155,
-    _sysctl = 156,
-    prctl = 157,
-    arch_prctl = 158,
-    adjtimex = 159,
-    setrlimit = 160,
-    chroot = 161,
-    sync = 162,
-    acct = 163,
-    settimeofday = 164,
-    mount = 165,
-    umount2 = 166,
-    swapon = 167,
-    swapoff = 168,
-    reboot = 169,
-    sethostname = 170,
-    setdomainname = 171,
-    iopl = 172,
-    ioperm = 173,
-    create_module = 174,
-    init_module = 175,
-    delete_module = 176,
-    get_kernel_syms = 177,
-    query_module = 178,
-    quotactl = 179,
-    nfsservctl = 180,
-    getpmsg = 181,
-    putpmsg = 182,
-    afs_syscall = 183,
-    tuxcall = 184,
-    security = 185,
-    gettid = 186,
-    readahead = 187,
-    setxattr = 188,
-    lsetxattr = 189,
-    fsetxattr = 190,
-    getxattr = 191,
-    lgetxattr = 192,
-    fgetxattr = 193,
-    listxattr = 194,
-    llistxattr = 195,
-    flistxattr = 196,
-    removexattr = 197,
-    lremovexattr = 198,
-    fremovexattr = 199,
-    tkill = 200,
-    time = 201,
-    futex = 202,
-    sched_setaffinity = 203,
-    sched_getaffinity = 204,
-    set_thread_area = 205,
-    io_setup = 206,
-    io_destroy = 207,
-    io_getevents = 208,
-    io_submit = 209,
-    io_cancel = 210,
-    get_thread_area = 211,
-    lookup_dcookie = 212,
-    epoll_create = 213,
-    epoll_ctl_old = 214,
-    epoll_wait_old = 215,
-    remap_file_pages = 216,
-    getdents64 = 217,
-    set_tid_address = 218,
-    restart_syscall = 219,
-    semtimedop = 220,
-    fadvise64 = 221,
-    timer_create = 222,
-    timer_settime = 223,
-    timer_gettime = 224,
-    timer_getoverrun = 225,
-    timer_delete = 226,
-    clock_settime = 227,
-    clock_gettime = 228,
-    clock_getres = 229,
-    clock_nanosleep = 230,
-    exit_group = 231,
-    epoll_wait = 232,
-    epoll_ctl = 233,
-    tgkill = 234,
-    utimes = 235,
-    vserver = 236,
-    mbind = 237,
-    set_mempolicy = 238,
-    get_mempolicy = 239,
-    mq_open = 240,
-    mq_unlink = 241,
-    mq_timedsend = 242,
-    mq_timedreceive = 243,
-    mq_notify = 244,
-    mq_getsetattr = 245,
-    kexec_load = 246,
-    waitid = 247,
-    add_key = 248,
-    request_key = 249,
-    keyctl = 250,
-    ioprio_set = 251,
-    ioprio_get = 252,
-    inotify_init = 253,
-    inotify_add_watch = 254,
-    inotify_rm_watch = 255,
-    migrate_pages = 256,
-    openat = 257,
-    mkdirat = 258,
-    mknodat = 259,
-    fchownat = 260,
-    futimesat = 261,
-    fstatat = 262,
-    unlinkat = 263,
-    renameat = 264,
-    linkat = 265,
-    symlinkat = 266,
-    readlinkat = 267,
-    fchmodat = 268,
-    faccessat = 269,
-    pselect6 = 270,
-    ppoll = 271,
-    unshare = 272,
-    set_robust_list = 273,
-    get_robust_list = 274,
-    splice = 275,
-    tee = 276,
-    sync_file_range = 277,
-    vmsplice = 278,
-    move_pages = 279,
-    utimensat = 280,
-    epoll_pwait = 281,
-    signalfd = 282,
-    timerfd_create = 283,
-    eventfd = 284,
-    fallocate = 285,
-    timerfd_settime = 286,
-    timerfd_gettime = 287,
-    accept4 = 288,
-    signalfd4 = 289,
-    eventfd2 = 290,
-    epoll_create1 = 291,
-    dup3 = 292,
-    pipe2 = 293,
-    inotify_init1 = 294,
-    preadv = 295,
-    pwritev = 296,
-    rt_tgsigqueueinfo = 297,
-    perf_event_open = 298,
-    recvmmsg = 299,
-    fanotify_init = 300,
-    fanotify_mark = 301,
-    prlimit64 = 302,
-    name_to_handle_at = 303,
-    open_by_handle_at = 304,
-    clock_adjtime = 305,
-    syncfs = 306,
-    sendmmsg = 307,
-    setns = 308,
-    getcpu = 309,
-    process_vm_readv = 310,
-    process_vm_writev = 311,
-    kcmp = 312,
-    finit_module = 313,
-    sched_setattr = 314,
-    sched_getattr = 315,
-    renameat2 = 316,
-    seccomp = 317,
-    getrandom = 318,
-    memfd_create = 319,
-    kexec_file_load = 320,
-    bpf = 321,
-    execveat = 322,
-    userfaultfd = 323,
-    membarrier = 324,
-    mlock2 = 325,
-    copy_file_range = 326,
-    preadv2 = 327,
-    pwritev2 = 328,
-    pkey_mprotect = 329,
-    pkey_alloc = 330,
-    pkey_free = 331,
-    statx = 332,
-    io_pgetevents = 333,
-    rseq = 334,
-    pidfd_send_signal = 424,
-    io_uring_setup = 425,
-    io_uring_enter = 426,
-    io_uring_register = 427,
-    open_tree = 428,
-    move_mount = 429,
-    fsopen = 430,
-    fsconfig = 431,
-    fsmount = 432,
-    fspick = 433,
-    pidfd_open = 434,
-    clone3 = 435,
-    close_range = 436,
-    openat2 = 437,
-    pidfd_getfd = 438,
-    faccessat2 = 439,
-    process_madvise = 440,
-    epoll_pwait2 = 441,
-    mount_setattr = 442,
-    landlock_create_ruleset = 444,
-    landlock_add_rule = 445,
-    landlock_restrict_self = 446,
-    memfd_secret = 447,
-
-    _,
-};
-
 pub const O = struct {
     pub const CREAT = 0o100;
     pub const EXCL = 0o200;
@@ -613,10 +256,10 @@ pub const msghdr = extern struct {
 pub const msghdr_const = extern struct {
     name: ?*const sockaddr,
     namelen: socklen_t,
-    iov: [*]iovec_const,
+    iov: [*]const iovec_const,
     iovlen: i32,
     __pad1: i32 = 0,
-    control: ?*anyopaque,
+    control: ?*const anyopaque,
     controllen: socklen_t,
     __pad2: socklen_t = 0,
     flags: i32,
@@ -736,7 +379,7 @@ pub const mcontext_t = extern struct {
 
 pub const ucontext_t = extern struct {
     flags: usize,
-    link: *ucontext_t,
+    link: ?*ucontext_t,
     stack: stack_t,
     mcontext: mcontext_t,
     sigmask: sigset_t,