TAPSET::SYSCALLS(3stap)

NAME
tapset::syscalls - systemtap syscall tapset

DESCRIPTION
Following is an overview of available syscall probes and convenience variables they offer. By default, each syscall probe has name and argstr convenience variables, which are not included in the overview in order to keep it short. Non dwarf-based nd_syscall probes are supposed to have the same convenience variables.

syscall.accept
    addr_uaddr, addrlen_uaddr, sockfd

syscall.accept4
    addr_uaddr, addrlen_uaddr, flags, flags_str, sockfd

syscall.access
    mode, mode_str, pathname, pathname_unquoted

syscall.acct
    filename, filename_unquoted

syscall.add_key
    description_uaddr, payload_uaddr, plen, ringid, type_uaddr

syscall.adjtimex
    buf_str, buf_uaddr

syscall.alarm
    seconds

syscall.arch_prctl
    addr, code, code_str

syscall.bind
    addrlen, my_addr_uaddr, sockfd, uaddr_af, uaddr_ip, uaddr_ip_port, uaddr_ipv6_flowinfo, uaddr_ipv6_scope_id

syscall.bpf
    attr_uaddr, cmd, cmd_str, size

syscall.brk
    brk

syscall.capget
    data_uaddr, header_uaddr

syscall.capset
    data_uaddr, header_uaddr

syscall.chdir
    path, path_unquoted

syscall.chmod
    mode, path, path_unquoted

syscall.chown
    group, owner, path, path_unquoted

syscall.chown16
    group, owner, path, path_unquoted

syscall.chroot
    path, path_unquoted

syscall.clock_adjtime
    clk_id, clk_id_str, tx_uaddr, tx_uaddr_str

syscall.clock_getres
    clk_id, clk_id_str, res_uaddr

syscall.clock_gettime
    clk_id, clk_id_str, tp_uaddr

syscall.clock_nanosleep
    clk_id, clk_id_str, flags, flags_str, rem_uaddr, req_str, req_uaddr

syscall.clock_settime
    clk_id, clk_id_str, tp_uaddr, tp_uaddr_str

syscall.close
    fd

syscall.compat_execve
    args, env_str, filename

syscall.compat_execveat
    args, dirfd, dirfd_str, env_str, filename, flags, flags_str

syscall.compat_getitimer
    value_uaddr, which

syscall.compat_select
    exceptfds_uaddr, n, readfds_uaddr, timeout_str, timeout_uaddr, writefds_uaddr

syscall.compat_setitimer
    ovalue_uaddr, value_str, value_uaddr, which, which_str

syscall.compat_signalfd
    flags

syscall.compat_sys_msgctl
    buf_uaddr, cmd, cmd_str, msqid

syscall.compat_sys_msgrcv
    msgflg, msgflg_str, msgp_uaddr, msgsz, msgtyp, msqid

syscall.compat_sys_msgsnd
    msgflg, msgflg_str, msgp_uaddr, msgsz, msqid

syscall.compat_sys_recvmsg
    flags, flags_str, msg_uaddr, s

syscall.compat_sys_semctl
    arg, cmd, cmdstr, semid, semnum

syscall.compat_sys_semtimedop
    nsops, semid, sops_uaddr, timeout_str, timeout_uaddr

syscall.compat_sys_sendmsg
    flags, flags_str, msg_uaddr, s

syscall.compat_sys_shmat
    shmaddr_uaddr, shmflg, shmflg_str, shmid

syscall.compat_sys_shmctl
    buf_uaddr, cmd, cmd_str, shmid

syscall.connect
    addrlen, serv_addr_uaddr, sockfd, uaddr_af, uaddr_ip, uaddr_ip_port, uaddr_ipv6_flowinfo, uaddr_ipv6_scope_id

syscall.copy_file_range
    fd_in, fd_out, flags, len, off_in, off_out

syscall.creat
    mode, pathname, pathname_unquoted

syscall.delete_module
    flags, flags_str, name_user, name_user_unquoted

syscall.dup
    oldfd

syscall.dup2
    flags, flags_str, newfd, oldfd

syscall.dup3
    flags, flags_str, newfd, oldfd

syscall.epoll_create
    flags, size

syscall.epoll_ctl
    epfd, event_uaddr, fd, op, op_str

syscall.epoll_pwait
    epfd, events_uaddr, maxevents, sigmask_uaddr, sigsetsize, timeout

syscall.epoll_wait
    epfd, events_uaddr, maxevents, timeout

syscall.eventfd
    count, flags, flags_str

syscall.execve
    args, env_str, filename

syscall.execveat
    args, dirfd, dirfd_str, env_str, filename, flags, flags_str

syscall.exit
    status

syscall.exit_group
    status

syscall.faccessat
    dirfd, dirfd_str, mode, mode_str, pathname, pathname_unquoted

syscall.faccessat2
    dirfd, dirfd_str, flags, flags_str, mode, mode_str, pathname, pathname_unquoted

syscall.fadvise64
    advice, advice_str, fd, len, offset

syscall.fallocate
    fd, len, mode, mode_str, offset

syscall.fanotify_init
    event_f_flags, event_f_flags_str, flags, flags_str

syscall.fanotify_mark
    dirfd, dirfd_str, fanotify_fd, flags, flags_str, mask, mask_str, pathname, pathname_unquoted

syscall.fchdir
    fd

syscall.fchmod
    fildes, mode

syscall.fchmodat
    dirfd, dirfd_str, mode, pathname, pathname_unquoted

syscall.fchown
    fd, group, owner

syscall.fchown16
    fd, group, owner

syscall.fchownat
    dirfd, dirfd_str, flags, flags_str, group, owner, pathname, pathname_unquoted

syscall.fcntl
    arg, cmd, cmd_str, fd

syscall.fdatasync
    fd

syscall.fgetxattr
    filedes, name_str, name_str_unquoted, size, value_uaddr

syscall.finit_module
    fd, flags, flags_str, uargs, uargs_unquoted

syscall.flistxattr
    filedes, list_uaddr, size

syscall.flock
    fd, operation

syscall.fork

syscall.fremovexattr
    filedes, name_str, name_str_unquoted, name_uaddr

syscall.fsetxattr
    filedes, flags, flags_str, name_str, name_str_unquoted, name_uaddr, size, value_str, value_uaddr

syscall.fstat
    buf_uaddr, filedes

syscall.fstatat
    buf_uaddr, dirfd, dirfd_str, flags, flags_str, path, path_unquoted

syscall.fstatfs
    buf_uaddr, fd

syscall.fstatfs64
    buf_uaddr, fd, sz

syscall.fsync
    fd

syscall.ftruncate
    fd, length

syscall.futex
    futex_uaddr, op, uaddr2_uaddr, utime_uaddr, val3, val

syscall.futimesat
    dirfd, dirfd_str, filename, filename_uaddr, filename_unquoted, tvp_str, tvp_uaddr

syscall.get_mempolicy
    addr, flags, flags_str, maxnode, nmask_uaddr, policy_uaddr

syscall.get_robust_list
    len_uaddr, list_head_uaddr, pid

syscall.get_thread_area
    u_info_str, u_info_uaddr

syscall.getcpu
    cpu_uaddr, node_uaddr, tcache_uaddr

syscall.getcwd
    buf_uaddr, size

syscall.getdents
    count, dirp_uaddr, fd

syscall.getegid

syscall.geteuid

syscall.getgid

syscall.getgroups
    list_uaddr, size

syscall.getitimer
    value_uaddr, which

syscall.getpeername
    name_uaddr, namelen_uaddr, s

syscall.getpgid
    pid

syscall.getpgrp

syscall.getpid

syscall.getppid

syscall.getpriority
    which, who

syscall.getrandom
    buf, buf_unquoted, count, flags, flags_str

syscall.getresgid
    egid_uaddr, rgid_uaddr, sgid_uaddr

syscall.getresuid
    euid_uaddr, ruid_uaddr, suid_uaddr

syscall.getrlimit
    resource, rlim_uaddr

syscall.getrusage
    usage_uaddr, who, who_str

syscall.getsid
    pid

syscall.getsockname
    name_uaddr, namelen_uaddr, s

syscall.getsockopt
    fd, level, level_str, optlen_uaddr, optname, optname_str, optval_uaddr

syscall.gettid

syscall.gettimeofday
    tv_uaddr, tz_uaddr

syscall.getuid

syscall.getxattr
    name_str, name_str_unquoted, path, path_unquoted, size, value_uaddr

syscall.init_module
    len, uargs, uargs_unquoted, umod_uaddr

syscall.inotify_add_watch
    fd, mask, mask_str, path, path_uaddr, path_unquoted

syscall.inotify_init
    flags

syscall.inotify_rm_watch
    fd, wd

syscall.io_cancel
    ctx_id, iocb_uaddr, result_uaddr

syscall.io_destroy
    ctx

syscall.io_getevents
    ctx_id, events_uaddr, min_nr, nr, timeout_uaddr, timestr

syscall.io_setup
    ctxp_uaddr, maxevents

syscall.io_submit
    ctx_id, iocbpp_uaddr, nr

syscall.ioctl
    argp, fd, request

syscall.ioperm
    from, num, turn_on

syscall.iopl
    level

syscall.ioprio_get
    which, which_str, who

syscall.ioprio_set
    ioprio, ioprio_str, which, which_str, who

syscall.kcmp
    idx1, idx2, pid1, pid2, type, type_str

syscall.kexec_file_load
    cmdline, cmdline_len, cmdline_unquoted, flags, flags_str, initrd_fd, kernel_fd

syscall.kexec_load
    entry, flags, flags_str, nr_segments, segments_uaddr

syscall.keyctl
    arg2, arg3, arg4, arg5, option

syscall.kill
    pid, sig, sig_name

syscall.lchown
    group, owner, path, path_unquoted

syscall.lchown16
    group, owner, path, path_unquoted

syscall.lgetxattr
    name_str, name_str_unquoted, path, path_unquoted, size, value_uaddr

syscall.link
    newpath, newpath_unquoted, oldpath, oldpath_unquoted

syscall.linkat
    flags, flags_str, newdirfd, newdirfd_str, newpath, newpath_unquoted, olddirfd, olddirfd_str, oldpath, oldpath_unquoted

syscall.listen
    backlog, sockfd

syscall.listxattr
    list_uaddr, path, path_uaddr, path_unquoted, size

syscall.llistxattr
    list_uaddr, path, path_uaddr, path_unquoted, size

syscall.llseek
    fd, offset_high, offset_low, result_uaddr, whence, whence_str

syscall.lremovexattr
    name_str, name_str_unquoted, name_uaddr, path, path_uaddr, path_unquoted

syscall.lseek
    fildes, offset, whence, whence_str

syscall.lsetxattr
    flags, flags_str, name_str, name_str_unquoted, name_uaddr, path, path_uaddr, path_unquoted, size, value_str, value_uaddr

syscall.lstat
    buf_uaddr, path, path_unquoted

syscall.madvise
    advice, advice_str, length, start

syscall.mbind
    flags, flags_str, len, maxnode, mode, mode_str, nmask_uaddr, start

syscall.membarrier
    cmd, cmd_str, flags

syscall.memfd_create
    flags, flags_str, uname, uname_unquoted

syscall.memfd_secret
    flags, flags_str

syscall.migrate_pages
    maxnode, new_nodes, old_nodes, pid

syscall.mincore
    length, start, vec_uaddr

syscall.mkdir
    mode, pathname, pathname_uaddr, pathname_unquoted

syscall.mkdirat
    dirfd, dirfd_str, mode, pathname, pathname_unquoted

syscall.mknod
    dev, mode, mode_str, pathname, pathname_unquoted

syscall.mknodat
    dev, dirfd, dirfd_str, mode, mode_str, pathname, pathname_unquoted

syscall.mlock
    addr, len

syscall.mlock2
    addr, flags, flags_str, len

syscall.mlockall
    flags, flags_str

syscall.mmap2
    fd, flags, flags_str, length, pgoffset, prot, prot_str, start

syscall.modify_ldt
    bytecount, func, ptr_uaddr

syscall.mount
    data, data_unquoted, filesystemtype, filesystemtype_unquoted, mountflags, mountflags_str, source, source_unquoted, target, target_unquoted

syscall.move_pages
    flags, flags_str, nodes, nr_pages, pages, pid, status

syscall.mprotect
    addr, len, prot, prot_str

syscall.mq_getsetattr
    mqdes, u_mqstat_uaddr, u_omqstat_uaddr

syscall.mq_notify
    mqdes, notification_uaddr

syscall.mq_open
    filename, filename_unquoted, mode, name_uaddr, oflag, oflag_str, u_attr_uaddr

syscall.mq_timedreceive
    abs_timeout_uaddr, mqdes, msg_len, msg_prio_uaddr, msg_ptr_uaddr

syscall.mq_timedsend
    abs_timeout_uaddr, mqdes, msg_len, msg_prio, msg_ptr_uaddr

syscall.mq_unlink
    u_name, u_name_uaddr, u_name_unquoted

syscall.mremap
    flags, flags_str, new_address, new_size, old_address, old_size

syscall.msgctl
    buf_uaddr, cmd, cmd_str, msqid

syscall.msgget
    key, key_str, msgflg, msgflg_str

syscall.msgrcv
    msgflg, msgflg_str, msgp_uaddr, msgsz, msgtyp, msqid

syscall.msgsnd
    msgflg, msgflg_str, msgp_uaddr, msgsz, msqid

syscall.msync
    flags, flags_str, length, start

syscall.munlock
    addr, len

syscall.munlockall

syscall.munmap
    length, start

syscall.name_to_handle_at
    dfd, dfd_str, flags, flags_str, handle_uaddr, mnt_id_uaddr, pathname, pathname_unquoted

syscall.nanosleep
    rem_uaddr, req_str, req_uaddr

syscall.ni_syscall

syscall.nice
    inc

syscall.open
    filename, filename_unquoted, flags, flags_str, mode

syscall.open_by_handle_at
    flags, flags_str, handle_uaddr, mount_dfd, mount_dfd_str

syscall.openat
    dfd, dfd_str, filename, filename_unquoted, flags, flags_str, mode

syscall.pause

syscall.perf_event_open
    attr_uaddr, cpu, flags, flags_str, group_fd, pid

syscall.personality
    persona

syscall.pipe
    fildes_uaddr, flag_str, flags, pipe0, pipe1

syscall.pivot_root
    new_root_str, new_root_str_unquoted, old_root_str, old_root_str_unquoted

syscall.pkey_alloc
    flags, init_val, init_val_str

syscall.pkey_free
    pkey

syscall.pkey_mprotect
    addr, len, pkey, prot, prot_str

syscall.poll
    nfds, timeout, ufds_uaddr

syscall.ppoll
    fds_uaddr, nfds, sigmask, sigsetsize, tsp, tsp_str

syscall.prctl
    arg2, arg3, arg4, arg5, option

syscall.pread
    buf_uaddr, count, fd, offset

syscall.preadv
    count, fd, offset, vector_uaddr

syscall.preadv2
    count, fd, flags, flags_str, offset, vector_uaddr

syscall.prlimit64
    new_rlim_str, new_rlim_uaddr, old_rlim_uaddr, pid, resource, resource_str

syscall.process_vm_readv
    flags, liovcnt, local_iov_uaddr, pid, remote_iov_uaddr, riovcnt

syscall.process_vm_writev
    flags, liovcnt, local_iov_uaddr, pid, remote_iov_uaddr, riovcnt

syscall.pselect6
    exceptfds, nfds, readfds, sigmask, timeout, timeout_str, writefds

syscall.ptrace
    addr, data, pid, request

syscall.pwrite
    buf_str, buf_uaddr, count, fd, offset

syscall.pwritev
    count, fd, offset, vector_uaddr

syscall.pwritev2
    count, fd, flags, flags_str, offset, vector_uaddr

syscall.quotactl
    addr_uaddr, cmd, cmd_str, id, special, special_str, special_str_unquoted

syscall.read
    buf_uaddr, count, fd

syscall.readahead
    count, fd, offset

syscall.readdir
    count, dirent, fd

syscall.readlink
    buf_uaddr, bufsiz, path, path_unquoted

syscall.readlinkat
    buf_uaddr, bufsiz, dfd, dfd_str, path, path_unquoted

syscall.readv
    count, fd, vector_uaddr

syscall.reboot
    arg_uaddr, flag, flag_str, magic2, magic2_str, magic, magic_str

syscall.recv
    buf_uaddr, flags, flags_str, len, s

syscall.recvfrom
    addr_uaddr, addrlen_uaddr, buf_uaddr, flags, flags_str, len, s

syscall.recvmmsg
    flags, flags_str, mmsg_uaddr, s, timeout_str, timeout_uaddr, vlen

syscall.recvmsg
    flags, flags_str, msg_uaddr, s

syscall.remap_file_pages
    flags, flags_str, pgoff, prot, prot_str, size, start

syscall.removexattr
    name_str, name_str_unquoted, path, path_unquoted

syscall.rename
    newpath, newpath_unquoted, oldpath, oldpath_unquoted

syscall.renameat
    newdfd, newdfd_str, newname, newname_str, newname_str_unquoted, olddfd, olddfd_str, oldname, oldname_str, oldname_str_unquoted

syscall.renameat2
    flags, flags_str, newdfd, newdfd_str, newname, newname_str, newname_str_unquoted, olddfd, olddfd_str, oldname, oldname_str, oldname_str_unquoted

syscall.request_key
    callout_info_uaddr, description_str, description_str_unquoted, description_uaddr, destringid, type_str, type_str_unquoted, type_uaddr

syscall.restart_syscall

syscall.rmdir
    pathname, pathname_unquoted

syscall.rt_sigaction
    act_str, act_uaddr, oact_uaddr, sig, sig_str, sigsetsize

syscall.rt_sigaction32
    act_str, act_uaddr, oact_uaddr, sig, sig_str, sigsetsize

syscall.rt_sigpending
    set_uaddr, sigsetsize

syscall.rt_sigprocmask
    how, how_str, oldset_uaddr, set_str, set_uaddr, sigsetsize

syscall.rt_sigqueueinfo
    pid, sig, sig_name, siginfo_str, uinfo_uaddr

syscall.rt_sigsuspend
    set_str, set_uaddr, sigsetsize

syscall.rt_sigtimedwait
    sigsetsize, uinfo_str, uinfo_uaddr, uthese_str, uthese_uaddr, uts_str, uts_uaddr

syscall.rt_tgsigqueueinfo
    sig, sig_str, tgid, tid, uinfo_str, uinfo_uaddr

syscall.sched_get_priority_max
    policy, policy_str

syscall.sched_get_priority_min
    policy, policy_str

syscall.sched_getaffinity
    len, mask_uaddr, pid

syscall.sched_getattr
    flags, pid, sched_attr_str, sched_attr_uaddr, size

syscall.sched_getparam
    p_uaddr, pid

syscall.sched_getscheduler
    pid

syscall.sched_rr_get_interval
    pid, tp_uaddr

syscall.sched_setaffinity
    len, mask_uaddr, pid

syscall.sched_setattr
    flags, pid, sched_attr_str, sched_attr_uaddr

syscall.sched_setparam
    p_uaddr, pid

syscall.sched_setscheduler
    p_uaddr, pid, policy, policy_str

syscall.sched_yield

syscall.seccomp
    flags, flags_str, op, op_str, uargs_uaddr

syscall.select
    exceptfds_uaddr, n, readfds_uaddr, timeout_str, timeout_uaddr, writefds_uaddr

syscall.semctl
    arg, cmd, cmdstr, semid, semnum

syscall.semget
    key, key_str, nsems, semflg, semflg_str

syscall.semop
    nsops, semid, sops_uaddr

syscall.semtimedop
    nsops, semid, sops_uaddr, timeout_str, timeout_uaddr

syscall.send
    buf, buf_uaddr, flags, flags_str, len, s

syscall.sendfile
    count, in_fd, offset_uaddr, out_fd

syscall.sendmmsg
    flags, flags_str, mmsg_uaddr, s, vlen

syscall.sendmsg
    flags, flags_str, msg_uaddr, s

syscall.sendto
    buf, buf_uaddr, flags, flags_str, len, s, to_str, to_uaddr, tolen

syscall.set_mempolicy
    maxnode, mode, mode_str, nmask_uaddr

syscall.set_robust_list
    len, list_head_uaddr

syscall.set_thread_area
    u_info_str, u_info_uaddr

syscall.set_tid_address
    tidptr_uaddr

syscall.setdomainname
    domainname_str, domainname_str_unquoted, domainname_uaddr, len

syscall.setfsgid
    fsgid

syscall.setfsuid
    fsuid

syscall.setgid
    gid

syscall.setgroups
    list_uaddr, size

syscall.sethostname
    hostname_uaddr, len, name_str, name_str_unquoted

syscall.setitimer
    ovalue_uaddr, value_str, value_uaddr, which, which_str

syscall.setns
    fd, nstype, nstype_str

syscall.setpgid
    pgid, pid

syscall.setpriority
    prio, which, which_str, who

syscall.setregid
    egid, rgid

syscall.setregid16
    egid, rgid

syscall.setresgid
    egid, rgid, sgid

syscall.setresgid16
    egid, rgid, sgid

syscall.setresuid
    euid, ruid, suid

syscall.setresuid16
    euid, ruid, suid

syscall.setreuid
    euid, ruid

syscall.setreuid16
    euid, ruid

syscall.setrlimit
    resource, resource_str, rlim_str, rlim_uaddr

syscall.setsid

syscall.setsockopt
    fd, level, level_str, optlen, optname, optname_str, optval_uaddr

syscall.settimeofday
    tv_str, tv_uaddr, tz_str, tz_uaddr

syscall.settimeofday32
    tv_str, tv_uaddr, tz_str, tz_uaddr

syscall.setuid
    uid

syscall.setxattr
    flags, flags_str, name_str, name_str_unquoted, name_uaddr, path, path_uaddr, path_unquoted, size, value_str, value_uaddr

syscall.sgetmask

syscall.shmat
    shmaddr_uaddr, shmflg, shmflg_str, shmid

syscall.shmctl
    buf_uaddr, cmd, cmd_str, shmid

syscall.shmdt
    shmaddr_uaddr

syscall.shmget
    key, shmflg, shmflg_str, size

syscall.shutdown
    how, how_str, s

syscall.sigaction32
    act_str, act_uaddr, oact_uaddr, sig, sig_str

syscall.sigaltstack
    uoss_uaddr, uss_str, uss_uaddr

syscall.signal
    handler, handler_str, sig, sig_str

syscall.signalfd
    flags

syscall.sigpending
    set

syscall.sigprocmask
    how, how_str, oldset_uaddr, set_uaddr

syscall.sigsuspend
    mask, mask_str

syscall.socket
    family, family_str, protocol, protocol_str, type, type_str

syscall.socketpair
    family, family_str, protocol, protocol_str, sv_uaddr, type, type_str

syscall.splice
    fd_in, fd_out, flags, flags_str, len, off_in, off_out

syscall.ssetmask
    newmask, newmask_str

syscall.stat
    buf_uaddr, filename, filename_uaddr, filename_unquoted

syscall.statfs
    buf_uaddr, path, path_unquoted

syscall.statfs64
    buf_uaddr, path, path_unquoted, sz

syscall.statx
    buf_uaddr, dfd, dfd_str, filename, filename_uaddr, filename_unquoted, flags, flags_str, mask, mask_str

syscall.stime
    t_uaddr

syscall.swapoff
    path, path_uaddr, path_unquoted

syscall.swapon
    path, path_uaddr, path_unquoted, swapflags, swapflags_str

syscall.symlink
    newpath, oldpath, oldpath_unquoted

syscall.symlinkat
    newdfd, newdfd_str, newname, newname_str, newname_str_unquoted, oldname, oldname_str, oldname_str_unquoted

syscall.sync

syscall.sync_file_range
    fd, flags, flags_str, nbytes, offset

syscall.syncfs
    fd

syscall.sysfs
    arg1, arg2, option

syscall.sysinfo
    info_str, info_uaddr

syscall.syslog
    bufp_uaddr, len, type

syscall.tee
    fdin, fdout, flags, len

syscall.tgkill
    pid, sig, sig_str, tgid

syscall.time
    t_uaddr

syscall.timer_create
    clockid, clockid_str, evp_uaddr, timerid_uaddr

syscall.timer_delete
    timerid

syscall.timer_getoverrun
    timerid

syscall.timer_gettime
    timerid, value_uaddr

syscall.timer_settime
    flags, ovalue_uaddr, timerid, value_str, value_uaddr

syscall.timerfd_create
    clockid, clockid_str, flags, flags_str

syscall.timerfd_gettime
    fd, value_uaddr

syscall.timerfd_settime
    fd, flags, flags_str, ovalue_uaddr, value_str, value_uaddr

syscall.times
    buf_str, buf_uaddr

syscall.tkill
    pid, sig, sig_str

syscall.truncate
    length, path, path_uaddr, path_unquoted

syscall.umask
    mask

syscall.umount
    flags, flags_str, target, target_unquoted

syscall.uname
    name_uaddr

syscall.unlink
    pathname, pathname_uaddr, pathname_unquoted

syscall.unlinkat
    dfd, dfd_str, flag, flag_str, pathname, pathname_str, pathname_str_unquoted

syscall.unshare
    unshare_flags, unshare_flags_str

syscall.userfaultfd
    flags, flags_str

syscall.ustat
    dev, ubuf_uaddr

syscall.ustat32
    dev, ubuf_uaddr

syscall.utime
    actime, buf_uaddr, filename, filename_uaddr, filename_unquoted, modtime

syscall.utimensat
    dfd, dfd_str, filename, filename_uaddr, filename_unquoted, flags, flags_str, tsp_str, tsp_uaddr

syscall.utimes
    filename, filename_uaddr, filename_unquoted, tvp_uaddr, tvp_uaddr_str

syscall.vfork

syscall.vhangup

syscall.vmsplice
    fd, flags, flags_str, iov, nr_segs

syscall.wait4
    options, options_str, pid, rusage_uaddr, status_uaddr

syscall.waitid
    infop_uaddr, options, options_str, pid, rusage_uaddr, which, which_str

syscall.waitpid
    options, options_str, pid, status_uaddr

syscall.write
    buf_str, buf_uaddr, count, fd

syscall.writev
    count, fd, vector_uaddr

SEE ALSO
stap(1), stapprobes(3stap)