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Current Path: /usr/share/systemtap/tapset/linux

usr / share / systemtap / tapset / linux /

📁 ..
📁 arm
📁 arm64
📄 atomic.stp(1.53 KB)
📄 aux_syscalls.stp(143.78 KB)
📄 context-caller.stp(3.07 KB)
📄 context-envvar.stp(1.72 KB)
📄 context-symbols.stp(11.99 KB)
📄 context-unwind.stp(2.81 KB)
📄 context.stp(18.57 KB)
📄 context.stpm(125 B)
📄 conversions-guru.stp(5.74 KB)
📄 conversions.stp(15.34 KB)
📄 ctime.stp(5.54 KB)
📄 dentry.stp(10.11 KB)
📄 dev.stp(1.9 KB)
📄 endian.stp(602 B)
📄 guru-delay.stp(1.2 KB)
📄 guru-signal.stp(1.07 KB)
📁 i386
📁 ia64
📄 inet.stp(1.42 KB)
📄 inet.stpm(383 B)
📄 inet_sock.stp(1.25 KB)
📄 ioblock.stp(15.04 KB)
📄 ioscheduler.stp(11.89 KB)
📄 ip.stp(5.35 KB)
📄 ipmib-filter-default.stp(965 B)
📄 ipmib.stp(12.68 KB)
📄 irq.stp(5 KB)
📄 json.stp(8.98 KB)
📄 json.stpm(6.11 KB)
📄 kprocess.stp(4.4 KB)
📄 kretprobe.stp(2.1 KB)
📄 linuxmib-filter-default.stp(876 B)
📄 linuxmib.stp(3.63 KB)
📄 loadavg.stp(1.95 KB)
📄 logging.stp(2.12 KB)
📄 memory.stp(18.74 KB)
📁 mips
📄 netfilter.stp(35.49 KB)
📄 networking.stp(9.37 KB)
📄 nfs.stp(38.06 KB)
📄 nfs_proc.stp(55.46 KB)
📄 nfs_proc.stpm(1.18 KB)
📄 nfsd.stp(46.27 KB)
📄 nfsderrno.stp(11.7 KB)
📄 panic.stp(1.07 KB)
📄 perf.stp(5.16 KB)
📁 powerpc
📄 proc_mem.stp(12.05 KB)
📄 pstrace.stp(773 B)
📄 rcu.stp(928 B)
📄 rlimit.stp(1.35 KB)
📄 rpc.stp(37.67 KB)
📁 s390
📄 scheduler.stp(11.36 KB)
📄 scsi.stp(9.47 KB)
📄 signal.stp(28.69 KB)
📄 socket.stp(34.2 KB)
📄 sysc_accept.stp(7.32 KB)
📄 sysc_accept4.stp(7.24 KB)
📄 sysc_access.stp(2.45 KB)
📄 sysc_acct.stp(2.18 KB)
📄 sysc_add_key.stp(2.91 KB)
📄 sysc_adjtimex.stp(5.28 KB)
📄 sysc_alarm.stp(2.52 KB)
📄 sysc_bdflush.stp(2.75 KB)
📄 sysc_bind.stp(6.43 KB)
📄 sysc_bpf.stp(2.33 KB)
📄 sysc_brk.stp(2.33 KB)
📄 sysc_capget.stp(2.71 KB)
📄 sysc_capset.stp(2.71 KB)
📄 sysc_chdir.stp(2.23 KB)
📄 sysc_chmod.stp(2.51 KB)
📄 sysc_chown.stp(3.27 KB)
📄 sysc_chown16.stp(2.61 KB)
📄 sysc_chroot.stp(2.29 KB)
📄 sysc_clock_adjtime.stp(4.72 KB)
📄 sysc_clock_getres.stp(3.82 KB)
📄 sysc_clock_gettime.stp(3.62 KB)
📄 sysc_clock_nanosleep.stp(7.25 KB)
📄 sysc_clock_settime.stp(5.02 KB)
📄 sysc_clone.stp(6.19 KB)
📄 sysc_close.stp(2.47 KB)
📄 sysc_connect.stp(6.82 KB)
📄 sysc_copy_file_range.stp(3.15 KB)
📄 sysc_creat.stp(2.28 KB)
📄 sysc_delete_module.stp(2.87 KB)
📄 sysc_dup.stp(2.09 KB)
📄 sysc_dup2.stp(2.63 KB)
📄 sysc_dup3.stp(2.66 KB)
📄 sysc_epoll_create.stp(5.29 KB)
📄 sysc_epoll_ctl.stp(3.5 KB)
📄 sysc_epoll_pwait.stp(3.49 KB)
📄 sysc_epoll_wait.stp(4.33 KB)
📄 sysc_eventfd.stp(4.86 KB)
📄 sysc_execve.stp(6.11 KB)
📄 sysc_execveat.stp(6.78 KB)
📄 sysc_exit.stp(1.54 KB)
📄 sysc_exit_group.stp(1.66 KB)
📄 sysc_faccessat.stp(3.2 KB)
📄 sysc_fadvise64.stp(7.43 KB)
📄 sysc_fallocate.stp(3.29 KB)
📄 sysc_fanotify_init.stp(3.02 KB)
📄 sysc_fanotify_mark.stp(5.75 KB)
📄 sysc_fchdir.stp(2.23 KB)
📄 sysc_fchmod.stp(2.52 KB)
📄 sysc_fchmodat.stp(3.2 KB)
📄 sysc_fchown.stp(3.28 KB)
📄 sysc_fchown16.stp(2.59 KB)
📄 sysc_fchownat.stp(3.24 KB)
📄 sysc_fcntl.stp(4.37 KB)
📄 sysc_fdatasync.stp(2.39 KB)
📄 sysc_fgetxattr.stp(2.94 KB)
📄 sysc_finit_module.stp(2.86 KB)
📄 sysc_flistxattr.stp(2.61 KB)
📄 sysc_flock.stp(2.28 KB)
📄 sysc_fork.stp(2.53 KB)
📄 sysc_fremovexattr.stp(2.73 KB)
📄 sysc_fsetxattr.stp(3.34 KB)
📄 sysc_fstat.stp(5.76 KB)
📄 sysc_fstatat.stp(5.21 KB)
📄 sysc_fstatfs.stp(2.94 KB)
📄 sysc_fstatfs64.stp(2.86 KB)
📄 sysc_fsync.stp(2.18 KB)
📄 sysc_ftruncate.stp(5.54 KB)
📄 sysc_futex.stp(5.11 KB)
📄 sysc_futimesat.stp(5.91 KB)
📄 sysc_get_mempolicy.stp(4.1 KB)
📄 sysc_get_robust_list.stp(4.12 KB)
📄 sysc_getcpu.stp(2.63 KB)
📄 sysc_getcwd.stp(2.43 KB)
📄 sysc_getdents.stp(5.18 KB)
📄 sysc_getegid.stp(3.46 KB)
📄 sysc_geteuid.stp(3.4 KB)
📄 sysc_getgid.stp(3.32 KB)
📄 sysc_getgroups.stp(3.91 KB)
📄 sysc_gethostname.stp(1.22 KB)
📄 sysc_getitimer.stp(4.87 KB)
📄 sysc_getpeername.stp(7.01 KB)
📄 sysc_getpgid.stp(2.6 KB)
📄 sysc_getpgrp.stp(2.04 KB)
📄 sysc_getpid.stp(1.98 KB)
📄 sysc_getppid.stp(2.06 KB)
📄 sysc_getpriority.stp(2.62 KB)
📄 sysc_getrandom.stp(2.72 KB)
📄 sysc_getresgid.stp(3.73 KB)
📄 sysc_getresuid.stp(3.54 KB)
📄 sysc_getrlimit.stp(4.08 KB)
📄 sysc_getrusage.stp(3.45 KB)
📄 sysc_getsid.stp(2.26 KB)
📄 sysc_getsockname.stp(7.03 KB)
📄 sysc_getsockopt.stp(7.88 KB)
📄 sysc_gettid.stp(2.01 KB)
📄 sysc_gettimeofday.stp(3.7 KB)
📄 sysc_getuid.stp(3.35 KB)
📄 sysc_getxattr.stp(3 KB)
📄 sysc_init_module.stp(2.76 KB)
📄 sysc_inotify_add_watch.stp(3.25 KB)
📄 sysc_inotify_init.stp(5.26 KB)
📄 sysc_inotify_rm_watch.stp(2.89 KB)
📄 sysc_io_cancel.stp(2.85 KB)
📄 sysc_io_destroy.stp(2.5 KB)
📄 sysc_io_getevents.stp(4.25 KB)
📄 sysc_io_setup.stp(3.43 KB)
📄 sysc_io_submit.stp(3.46 KB)
📄 sysc_ioctl.stp(3.12 KB)
📄 sysc_ioperm.stp(2.41 KB)
📄 sysc_ioprio_get.stp(2.65 KB)
📄 sysc_ioprio_set.stp(2.82 KB)
📄 sysc_kcmp.stp(2.51 KB)
📄 sysc_kexec_file_load.stp(3.35 KB)
📄 sysc_kexec_load.stp(3.96 KB)
📄 sysc_keyctl.stp(3.16 KB)
📄 sysc_kill.stp(2.25 KB)
📄 sysc_lchown.stp(3.34 KB)
📄 sysc_lchown16.stp(2.66 KB)
📄 sysc_lgetxattr.stp(3.05 KB)
📄 sysc_link.stp(2.34 KB)
📄 sysc_linkat.stp(3.26 KB)
📄 sysc_listen.stp(6.17 KB)
📄 sysc_listxattr.stp(2.72 KB)
📄 sysc_llistxattr.stp(2.78 KB)
📄 sysc_llseek.stp(2.81 KB)
📄 sysc_lookup_dcookie.stp(3.39 KB)
📄 sysc_lremovexattr.stp(3.11 KB)
📄 sysc_lseek.stp(3.98 KB)
📄 sysc_lsetxattr.stp(3.22 KB)
📄 sysc_lstat.stp(5.91 KB)
📄 sysc_madvise.stp(2.55 KB)
📄 sysc_mbind.stp(3.69 KB)
📄 sysc_membarrier.stp(2.65 KB)
📄 sysc_memfd_create.stp(2.77 KB)
📄 sysc_migrate_pages.stp(3.83 KB)
📄 sysc_mincore.stp(2.47 KB)
📄 sysc_mkdir.stp(2.38 KB)
📄 sysc_mkdirat.stp(2.92 KB)
📄 sysc_mknod.stp(2.45 KB)
📄 sysc_mknodat.stp(3.07 KB)
📄 sysc_mlock.stp(2.27 KB)
📄 sysc_mlock2.stp(2.47 KB)
📄 sysc_mlockall.stp(2.46 KB)
📄 sysc_mmap2.stp(5.45 KB)
📄 sysc_modify_ldt.stp(2.67 KB)
📄 sysc_mount.stp(3.53 KB)
📄 sysc_move_pages.stp(4.09 KB)
📄 sysc_mprotect.stp(2.55 KB)
📄 sysc_mq_getsetattr.stp(3.95 KB)
📄 sysc_mq_notify.stp(3.51 KB)
📄 sysc_mq_open.stp(4.54 KB)
📄 sysc_mq_timedreceive.stp(5.18 KB)
📄 sysc_mq_timedsend.stp(4.96 KB)
📄 sysc_mq_unlink.stp(2.53 KB)
📄 sysc_mremap.stp(3.01 KB)
📄 sysc_msgctl.stp(7.35 KB)
📄 sysc_msgget.stp(3.73 KB)
📄 sysc_msgrcv.stp(9.48 KB)
📄 sysc_msgsnd.stp(7.81 KB)
📄 sysc_msync.stp(2.44 KB)
📄 sysc_munlock.stp(2.39 KB)
📄 sysc_munlockall.stp(2.29 KB)
📄 sysc_munmap.stp(2.35 KB)
📄 sysc_name_to_handle_at.stp(3.46 KB)
📄 sysc_nanosleep.stp(5.22 KB)
📄 sysc_nfsservctl.stp(2.23 KB)
📄 sysc_ni_syscall.stp(1.4 KB)
📄 sysc_nice.stp(2.15 KB)
📄 sysc_open.stp(3.79 KB)
📄 sysc_open_by_handle_at.stp(3.8 KB)
📄 sysc_openat.stp(3.34 KB)
📄 sysc_pause.stp(2.5 KB)
📄 sysc_perf_event_open.stp(3.24 KB)
📄 sysc_personality.stp(2.74 KB)
📄 sysc_pipe.stp(9.86 KB)
📄 sysc_pivot_root.stp(2.71 KB)
📄 sysc_poll.stp(2.35 KB)
📄 sysc_ppoll.stp(5.38 KB)
📄 sysc_prctl.stp(2.48 KB)
📄 sysc_pread.stp(4.51 KB)
📄 sysc_preadv.stp(4.12 KB)
📄 sysc_preadv2.stp(4.48 KB)
📄 sysc_prlimit64.stp(2.97 KB)
📄 sysc_process_vm_readv.stp(4.08 KB)
📄 sysc_process_vm_writev.stp(4.13 KB)
📄 sysc_pselect6.stp(5.62 KB)
📄 sysc_pselect7.stp(3.58 KB)
📄 sysc_ptrace.stp(3.18 KB)
📄 sysc_pwrite.stp(6.27 KB)
📄 sysc_pwritev.stp(4.23 KB)
📄 sysc_pwritev2.stp(4.58 KB)
📄 sysc_quotactl.stp(4 KB)
📄 sysc_read.stp(3.29 KB)
📄 sysc_readahead.stp(3.02 KB)
📄 sysc_readdir.stp(3.6 KB)
📄 sysc_readlink.stp(2.59 KB)
📄 sysc_readlinkat.stp(3.24 KB)
📄 sysc_readv.stp(3.07 KB)
📄 sysc_reboot.stp(2.77 KB)
📄 sysc_recv.stp(6.7 KB)
📄 sysc_recvfrom.stp(7.82 KB)
📄 sysc_recvmmsg.stp(5.84 KB)
📄 sysc_recvmsg.stp(10.35 KB)
📄 sysc_remap_file_pages.stp(3.37 KB)
📄 sysc_removexattr.stp(2.75 KB)
📄 sysc_rename.stp(2.48 KB)
📄 sysc_renameat.stp(3.3 KB)
📄 sysc_renameat2.stp(3.61 KB)
📄 sysc_request_key.stp(3.23 KB)
📄 sysc_restart_syscall.stp(2.5 KB)
📄 sysc_rmdir.stp(2.25 KB)
📄 sysc_rt_sigaction.stp(6.2 KB)
📄 sysc_rt_sigpending.stp(4.35 KB)
📄 sysc_rt_sigprocmask.stp(7.87 KB)
📄 sysc_rt_sigqueueinfo.stp(4.26 KB)
📄 sysc_rt_sigreturn.stp(1.6 KB)
📄 sysc_rt_sigsuspend.stp(3.45 KB)
📄 sysc_rt_sigtimedwait.stp(5.08 KB)
📄 sysc_rt_tgsigqueueinfo.stp(3.92 KB)
📄 sysc_sched_get_priority_max.stp(3.26 KB)
📄 sysc_sched_get_priority_min.stp(3.26 KB)
📄 sysc_sched_getaffinity.stp(3.62 KB)
📄 sysc_sched_getattr.stp(3.05 KB)
📄 sysc_sched_getparam.stp(2.84 KB)
📄 sysc_sched_getscheduler.stp(2.94 KB)
📄 sysc_sched_rr_get_interval.stp(4.41 KB)
📄 sysc_sched_setaffinity.stp(3.49 KB)
📄 sysc_sched_setattr.stp(2.98 KB)
📄 sysc_sched_setparam.stp(2.83 KB)
📄 sysc_sched_setscheduler.stp(3.2 KB)
📄 sysc_sched_yield.stp(2.26 KB)
📄 sysc_seccomp.stp(2.76 KB)
📄 sysc_select.stp(5.55 KB)
📄 sysc_semctl.stp(7.22 KB)
📄 sysc_semget.stp(3.79 KB)
📄 sysc_semop.stp(4.73 KB)
📄 sysc_semtimedop.stp(8.8 KB)
📄 sysc_send.stp(6.81 KB)
📄 sysc_sendfile.stp(4.38 KB)
📄 sysc_sendmmsg.stp(8.61 KB)
📄 sysc_sendmsg.stp(11.48 KB)
📄 sysc_sendto.stp(7.66 KB)
📄 sysc_set_mempolicy.stp(3.69 KB)
📄 sysc_set_robust_list.stp(3.92 KB)
📄 sysc_set_tid_address.stp(2.83 KB)
📄 sysc_setdomainname.stp(3.04 KB)
📄 sysc_setfsgid.stp(4.43 KB)
📄 sysc_setfsuid.stp(4.48 KB)
📄 sysc_setgid.stp(4.23 KB)
📄 sysc_setgroups.stp(4.1 KB)
📄 sysc_sethostname.stp(2.72 KB)
📄 sysc_setitimer.stp(5.61 KB)
📄 sysc_setns.stp(2.34 KB)
📄 sysc_setpgid.stp(2.41 KB)
📄 sysc_setpriority.stp(2.79 KB)
📄 sysc_setregid.stp(5.84 KB)
📄 sysc_setresgid.stp(6.12 KB)
📄 sysc_setresuid.stp(6.13 KB)
📄 sysc_setreuid.stp(5.84 KB)
📄 sysc_setrlimit.stp(3.61 KB)
📄 sysc_setsid.stp(2.05 KB)
📄 sysc_setsockopt.stp(7.77 KB)
📄 sysc_settimeofday.stp(6.01 KB)
📄 sysc_setuid.stp(4.23 KB)
📄 sysc_setxattr.stp(3.12 KB)
📄 sysc_sgetmask.stp(2.12 KB)
📄 sysc_shmat.stp(5.88 KB)
📄 sysc_shmctl.stp(7.23 KB)
📄 sysc_shmdt.stp(3.36 KB)
📄 sysc_shmget.stp(3.7 KB)
📄 sysc_shutdown.stp(6.46 KB)
📄 sysc_sigaction.stp(5.2 KB)
📄 sysc_sigaltstack.stp(3.83 KB)
📄 sysc_signal.stp(2.5 KB)
📄 sysc_signalfd.stp(11.53 KB)
📄 sysc_sigpending.stp(3.19 KB)
📄 sysc_sigprocmask.stp(3.69 KB)
📄 sysc_sigreturn.stp(1.43 KB)
📄 sysc_sigsuspend.stp(4.22 KB)
📄 sysc_socket.stp(6.92 KB)
📄 sysc_socketpair.stp(7.68 KB)
📄 sysc_splice.stp(2.78 KB)
📄 sysc_ssetmask.stp(2.49 KB)
📄 sysc_stat.stp(5.91 KB)
📄 sysc_statfs.stp(3.02 KB)
📄 sysc_statfs64.stp(2.93 KB)
📄 sysc_statx.stp(3.4 KB)
📄 sysc_stime.stp(2.76 KB)
📄 sysc_swapoff.stp(2.41 KB)
📄 sysc_swapon.stp(2.6 KB)
📄 sysc_symlink.stp(2.52 KB)
📄 sysc_symlinkat.stp(3.28 KB)
📄 sysc_sync.stp(1.88 KB)
📄 sysc_sync_file_range.stp(4.76 KB)
📄 sysc_syncfs.stp(2.27 KB)
📄 sysc_sysctl.stp(2.78 KB)
📄 sysc_sysfs.stp(3.22 KB)
📄 sysc_sysinfo.stp(2.95 KB)
📄 sysc_syslog.stp(2.41 KB)
📄 sysc_tee.stp(2.3 KB)
📄 sysc_tgkill.stp(2.48 KB)
📄 sysc_time.stp(3.18 KB)
📄 sysc_timer_create.stp(4.39 KB)
📄 sysc_timer_delete.stp(2.61 KB)
📄 sysc_timer_getoverrun.stp(2.86 KB)
📄 sysc_timer_gettime.stp(4.15 KB)
📄 sysc_timer_settime.stp(5.33 KB)
📄 sysc_timerfd.stp(1.79 KB)
📄 sysc_timerfd_create.stp(2.99 KB)
📄 sysc_timerfd_gettime.stp(3.79 KB)
📄 sysc_timerfd_settime.stp(4.71 KB)
📄 sysc_times.stp(2.84 KB)
📄 sysc_tkill.stp(2.35 KB)
📄 sysc_truncate.stp(5.25 KB)
📄 sysc_tux.stp(1.04 KB)
📄 sysc_umask.stp(2.22 KB)
📄 sysc_umount.stp(4.5 KB)
📄 sysc_uname.stp(4.77 KB)
📄 sysc_unlink.stp(2.38 KB)
📄 sysc_unlinkat.stp(2.79 KB)
📄 sysc_unshare.stp(2.48 KB)
📄 sysc_uselib.stp(2.39 KB)
📄 sysc_userfaultfd.stp(2.68 KB)
📄 sysc_ustat.stp(4.77 KB)
📄 sysc_utime.stp(5.37 KB)
📄 sysc_utimensat.stp(6.16 KB)
📄 sysc_utimes.stp(5.29 KB)
📄 sysc_vfork.stp(1.98 KB)
📄 sysc_vhangup.stp(2.08 KB)
📄 sysc_vmsplice.stp(5.56 KB)
📄 sysc_wait4.stp(4.55 KB)
📄 sysc_waitid.stp(3.68 KB)
📄 sysc_waitpid.stp(3.02 KB)
📄 sysc_write.stp(3.5 KB)
📄 sysc_writev.stp(3.22 KB)
📄 syscall_any.stp(1.52 KB)
📄 syscall_table.stp(1.44 KB)
📄 syscalls.stpm(13.78 KB)
📄 syscalls_cfg_trunc.stp(111 B)
📄 target_set.stp(1.73 KB)
📄 task.stp(22.21 KB)
📄 task.stpm(253 B)
📄 task_ancestry.stp(1.58 KB)
📄 task_time.stp(7.68 KB)
📄 tcp.stp(22.11 KB)
📄 tcpmib-filter-default.stp(885 B)
📄 tcpmib.stp(10.57 KB)
📄 timestamp.stp(1.72 KB)
📄 timestamp_gtod.stp(1.59 KB)
📄 timestamp_monotonic.stp(5.46 KB)
📄 tty.stp(7.18 KB)
📄 tzinfo.stp(803 B)
📄 ucontext-symbols.stp(8.63 KB)
📄 ucontext-unwind.stp(3.64 KB)
📄 ucontext.stp(2.18 KB)
📄 udp.stp(5.95 KB)
📄 utrace.stp(1.33 KB)
📄 vfs.stp(32.43 KB)
📁 x86_64

Editing: context.stp

// context tapset
// Copyright (C) 2005-2015 Red Hat Inc.
// Copyright (C) 2006 Intel Corporation.
//
// This file is part of systemtap, and is free software.  You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.
//
// NB: tapsetdescription is in tapset/context.stp

/**
 * sfunction execname - Returns the execname of a target process (or group of processes)
 *
 * Description: Returns the execname of a target process (or group of processes).
 */
function execname:string ()
%{ /* pure */ /* unprivileged */ /* stable */
	strlcpy (STAP_RETVALUE, current->comm, MAXSTRINGLEN);
%}

/**
 * sfunction pexecname - Returns the execname of a target process's parent process
 *
 * Description: This function returns the execname of a target
 * process's parent procces.
 */
function pexecname:string ()
%{ /* pure */ /* unprivileged */ /* stable */
#if defined(STAPCONF_REAL_PARENT)
	strlcpy (STAP_RETVALUE, current->real_parent->comm, MAXSTRINGLEN);
#else
	strlcpy (STAP_RETVALUE, current->parent->comm, MAXSTRINGLEN);
#endif
%}

/**
 * sfunction pid - Returns the ID of a target process
 *
 * Description: This function returns the ID of a target process.
 */
function pid:long ()
{
	return @const("current->tgid")
}

/**
 * sfunction ns_pid - Returns the ID of a target process as seen in a pid namespace
 *
 * Description: This function returns the ID of a target process as seen in
 * the target pid namespace.
 */
function ns_pid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
  int64_t rc = from_target_pid_ns(current, PID);
  if (rc < 0) STAP_ERROR ("cannot resolve id in namespace");
  else STAP_RETURN (rc);
%}

/**
 * sfunction tid - Returns the thread ID of a target process
 *
 * Description: This function returns the thread ID of the target process.
 */
function tid:long ()
{
	return @const("current->pid")
}

/**
 * sfunction ns_tid - Returns the thread ID of a target process as seen in a pid namespace
 *
 * Description: This function returns the thread ID of a target process as seen
 * in  the target pid namespace if provided, or the stap process namespace.
 */
function ns_tid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
  int64_t rc = from_target_pid_ns(current, TID);
  if (rc < 0) STAP_ERROR ("cannot resolve id in namespace");
  else STAP_RETURN (rc);
%}

/**
 * sfunction ppid - Returns the process ID of a target process's parent process
 *
 * Description: This function return the process ID of the target proccess's parent process.
 */
function ppid:long()
%{ /* pure */ /* unprivileged */ /* stable */
#if defined(STAPCONF_REAL_PARENT)
	STAP_RETVALUE = current->real_parent->tgid;
#else
	STAP_RETVALUE = current->parent->tgid;
#endif
%}

/**
 * sfunction ns_ppid - Returns the process ID of a target process's parent process as seen in a pid namespace
 *
 * Description: This function return the process ID of the target proccess's parent process as seen in  the target pid namespace if provided, or the stap process namespace.
 */
function ns_ppid:long()
%{ /* pure */ /* unprivileged */ /* stable */
  int64_t rc = from_target_pid_ns(current->parent, PID);
  if (rc < 0) STAP_ERROR ("cannot resolve id in namespace");
  else STAP_RETURN (rc);
%}

/**
 * sfunction pgrp - Returns the process group ID of the current process
 *
 * Description: This function returns the process group ID of the
 * current process.
 */
function pgrp:long ()
%{ /* pure */ /* unprivileged */ /* stable */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 24)
	struct signal_struct *ss = kread( &(current->signal) );
	STAP_RETVALUE = kread ( &(ss->pgrp) );
	CATCH_DEREF_FAULT();
#else
	STAP_RETVALUE = task_pgrp_nr_ns(current, &init_pid_ns);
#endif
%}

/**
 * sfunction ns_pgrp - Returns the process group ID of the current process as seen in a pid namespace
 *
 * Description: This function returns the process group ID of the
 * current process as seen in  the target pid namespace if provided, or the stap process namespace.
 */
function ns_pgrp:long ()
%{ /* pure */ /* unprivileged */ /* stable */
  int64_t rc = from_target_pid_ns(current, PGRP);
  if (rc < 0) STAP_ERROR ("cannot resolve id in namespace");
  else STAP_RETURN (rc);
%}

/**
 * sfunction sid - Returns the session ID of the current process
 *
 * Description: The session ID of a process is the process group ID
 * of the session leader. Session ID is stored in the signal_struct
 *  since Kernel 2.6.0.
 */
function sid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 24)
	struct signal_struct *ss = kread( &(current->signal) );
	STAP_RETVALUE = kread ( &(ss->session) );
	CATCH_DEREF_FAULT();
#else
	STAP_RETVALUE = task_session_nr_ns(current, &init_pid_ns);
#endif
%}

/**
 * sfunction ns_sid - Returns the session ID of the current process as seen in a pid namespace
 *
 * Description: The namespace-aware session ID of a process is the process group ID
 * of the session leader as seen in  the target pid namespace if provided, or the stap process namespace. Session ID is stored in the signal_struct
 *  since Kernel 2.6.0.
 */
function ns_sid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
  int64_t rc = from_target_pid_ns(current, SID);
  if (rc < 0) STAP_ERROR ("cannot resolve id in namespace");
  else STAP_RETURN (rc);
%}

/**
 * sfunction gid - Returns the group ID of a target process
 *
 * Description: This function returns the group ID of a target process.
 */
function gid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
#ifdef STAPCONF_TASK_UID
	STAP_RETVALUE = current->gid;
#else
#if defined(CONFIG_USER_NS) || (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
	STAP_RETVALUE = from_kgid_munged(current_user_ns(), current_gid());
#else
	STAP_RETVALUE = current_gid();
#endif
#endif
%}

/**
 * sfunction ns_gid - Returns the group ID of a target process as seen in a user namespace
 *
 * Description: This function returns the group ID of a target process as seen in the target user namespace if provided, or the stap process namespace.
 */
function ns_gid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
  int64_t rc = from_target_user_ns(current, GID);
  if (rc < 0) STAP_ERROR ("cannot resolve id in namespace");
  else STAP_RETURN (rc);
%}

/**
 * sfunction egid - Returns the effective gid of a target process
 *
 * Description: This function returns the effective gid of a target process
 */
function egid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
#ifdef STAPCONF_TASK_UID
	STAP_RETVALUE = current->egid;
#else
#if defined(CONFIG_USER_NS) || (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
	STAP_RETVALUE = from_kgid_munged(current_user_ns(), current_egid());
#else
	STAP_RETVALUE = current_egid();
#endif
#endif
%}

/**
 * sfunction ns_egid - Returns the effective gid of a target process as seen in a user namespace
 *
 * Description: This function returns the effective gid of a target process as seen in the target user namespace if provided, or the stap process namespace
 */
function ns_egid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
  int64_t rc = from_target_user_ns(current, EGID);
  if (rc < 0) STAP_ERROR ("cannot resolve id in namespace");
  else STAP_RETURN (rc);
%}

/**
 * sfunction uid - Returns the user ID of a target process
 *
 * Description: This function returns the user ID of the target process.
 */
function uid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
#ifdef STAPCONF_TASK_UID
	STAP_RETVALUE = current->uid;
#else
#if defined(CONFIG_USER_NS) || (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
        STAP_RETVALUE = from_kuid_munged(current_user_ns(), current_uid());
#else
        STAP_RETVALUE = current_uid();
#endif
#endif
%}

/**
 * sfunction ns_uid - Returns the user ID of a target process as seen in a user namespace
 *
 * Description: This function returns the user ID of the target process as seen in the target user namespace if provided, or the stap process namespace.
 */
function ns_uid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
  int64_t rc = from_target_user_ns(current, UID);
  if (rc < 0) STAP_ERROR ("cannot resolve id in namespace");
  else STAP_RETURN (rc);
%}

/**
 * sfunction euid - Return the effective uid of a target process
 *
 * Description: Returns the effective user ID of the target process.
 */
function euid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
#ifdef STAPCONF_TASK_UID
	STAP_RETVALUE = current->euid;
#else
#if defined(CONFIG_USER_NS) || (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0))
  STAP_RETVALUE = from_kuid_munged(&init_user_ns, current_euid());
#else
	STAP_RETVALUE = current_euid();
#endif
#endif
%}

/**
 * sfunction ns_euid - Returns the effective user ID of a target process as seen in a user namespace
 *
 * Description: This function returns the effective user ID of the target process as seen in the target user namespace if provided, or the stap process namespace.
 */
function ns_euid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
  int64_t rc = from_target_user_ns(current, EUID);
  if (rc < 0) STAP_ERROR ("cannot resolve id in namespace");
  else STAP_RETURN (rc);
%}

/**
 * sfunction is_myproc - Determines if the current probe point has occurred in the user's own process
 *
 * Description: This function returns 1 if the current probe
 * point has occurred in the user's own process.
 */
function is_myproc:long ()
%{ /* pure */ /* unprivileged */ /* stable */
        STAP_RETVALUE = is_myproc();
%}

%( systemtap_v <= "1.4" %?
/**
 * sfunction cpuid - Returns the current cpu number
 *
 * Description: This function returns the current cpu number.
 * Deprecated in SystemTap 1.4 and removed in SystemTap 1.5.
 */
function cpuid:long ()
%{ /* pure */
	STAP_RETVALUE = smp_processor_id();
%}
%)

/**
 * sfunction cpu - Returns the current cpu number
 *
 * Description: This function returns the current cpu number.
 */
function cpu:long ()
%{ /* pure */ /* unprivileged */ /* stable */
	STAP_RETVALUE = smp_processor_id();
%}

/**
 * sfunction registers_valid - Determines validity of register() and u_register() in current context
 *
 * Description: This function returns 1 if register() and u_register()
 * can be used in the current context, or 0 otherwise.
 * For example, registers_valid() returns 0
 * when called from a begin or end probe.
 */
function registers_valid:long ()
%{ /* pure */ /* unprivileged */ /* stable */
	STAP_RETVALUE = (c->user_mode_p
			    ? (CONTEXT->uregs != NULL)
			    : (CONTEXT->kregs != NULL));
%}

/**
 * sfunction user_mode - Determines if probe point occurs in user-mode
 *
 * Return 1 if the probe point occurred in user-mode.
 */
function user_mode:long ()
%{ /* pure */ /* unprivileged */ /* stable */
  STAP_RETVALUE = CONTEXT->user_mode_p ? 1 : 0;
%}

/**
 * sfunction is_return - Whether the current probe context is a return probe
 *
 * Description: Returns 1 if the current probe context is a return probe,
 * returns 0 otherwise.
 */
function is_return:long ()
%{ /* pure */ /* stable */
	if (CONTEXT->probe_type == stp_probe_type_kretprobe
	    || CONTEXT->probe_type == stp_probe_type_uretprobe)
		STAP_RETVALUE = 1;
	else
		STAP_RETVALUE = 0;
%}

/**
 * sfunction target - Return the process ID of the target process
 *
 * Description: This function returns the process ID of the target
 * process.  This is useful in conjunction with the -x PID or
 * -c CMD command-line options to stap. An example of its use is
 * to create scripts that filter on a specific process.
 *
 * -x <pid>
 * target() returns the pid specified by -x
 *
 * -c <command>
 * target() returns the pid for the executed command specified by -c
 */
function target:long ()
{
	return @const("_stp_target")
}

/**
 * sfunction module_name - The module name of the current script
 *
 * Description: This function returns the name of the stap module.
 * Either generated randomly (stap_[0-9a-f]+_[0-9a-f]+)
 * or set by stap -m <module_name>.
 */
function module_name:string ()
%{ /* pure */ /* unprivileged */ /* stable */
	strlcpy(STAP_RETVALUE, THIS_MODULE->name, MAXSTRINGLEN);
%}

/**
 * sfunction module_size - The module size of the current script
 *
 * Description: This function returns the sizes of various sections
 * of the stap module.
 */
function module_size:string() %{
    int ctx = num_online_cpus() * sizeof(struct context);
    snprintf(STAP_RETVALUE, MAXSTRINGLEN, "%ludata/%lutext/%uctx/%unet/%ualloc kb",
#ifdef STAPCONF_MODULE_LAYOUT
	(unsigned long) (THIS_MODULE->core_layout.size - THIS_MODULE->core_layout.text_size)/1024,
	(unsigned long) (THIS_MODULE->core_layout.text_size)/1024,
#else
#ifndef STAPCONF_GRSECURITY
        (unsigned long) (THIS_MODULE->core_size - THIS_MODULE->core_text_size)/1024,
        (unsigned long) (THIS_MODULE->core_text_size)/1024,
#else
        (unsigned long) (THIS_MODULE->core_size_rw - THIS_MODULE->core_size_rx)/1024,
        (unsigned long) (THIS_MODULE->core_size_rx)/1024,
#endif
#endif
        ctx/1024, _stp_allocated_net_memory/1024,
        (_stp_allocated_memory - _stp_allocated_net_memory - ctx)/1024);
%}

/**
 * sfunction stp_pid - The process id of the stapio process
 *
 * Description: This function returns the process id of the
 * stapio process that launched this script. There could be
 * other SystemTap scripts and stapio processes running on
 * the system.
 */
function stp_pid:long ()
%{ /* pure */ /* stable */
        STAP_RETVALUE = _stp_pid;
%}

/**
 * sfunction remote_id - The index of this instance in a remote execution.
 *
 * Description: This function returns a number 0..N, which is the unique
 * index of this particular script execution from a swarm of
 * "stap --remote A --remote B ..." runs, and is the same number
 * "stap --remote-prefix" would print.  The function returns -1 if the
 * script was not launched with "stap --remote", or if the remote
 * staprun/stapsh are older than version 1.7.
 */
function remote_id:long () {
         return @const("_stp_remote_id")
}

/**
 * sfunction remote_uri - The name of this instance in a remote execution.
 *
 * Description: This function returns the remote host used to invoke
 * this particular script execution from a swarm of "stap --remote" runs.
 * It may not be unique among the swarm.
 * The function returns an empty string if the script was not launched with
 * "stap --remote".
 */
function remote_uri:string () {
         return %{ /* string */ /* pure */ /* unprivileged */ _stp_remote_uri %}
}

/**
 * sfunction stack_size - Return the size of the kernel stack
 *
 * Description: This function returns the size of the kernel stack.
 */
function stack_size:long ()
%{ /* pure */ /* stable */
        STAP_RETVALUE = THREAD_SIZE;
%}

/**
 * sfunction stack_used - Returns the amount of kernel stack used
 *
 * Description: This function determines how many bytes are
 * currently used in the kernel stack.
 */
function stack_used:long ()
%{ /* pure */ /* stable */
	char a;
        STAP_RETVALUE = THREAD_SIZE - ((long)&a & (THREAD_SIZE-1));
%}

/**
 * sfunction stack_unused - Returns the amount of kernel stack currently available
 *
 * Description: This function determines how many bytes are
 * currently available in the kernel stack.
 */
function stack_unused:long ()
%{ /* pure */ /* stable */
	char a;
        STAP_RETVALUE = (long)&a & (THREAD_SIZE-1);
%}

/**
 * sfunction addr - Address of the current probe point.
 *
 * Description: Returns the instruction pointer from the current probe's
 * register state.  Not all probe types have registers though, in which case
 * zero is returned.  The returned address is suitable for use with functions
 * like symname() and symdata().
 */
function addr:long ()
%{ /* pure */ /* stable */
  if (CONTEXT->user_mode_p) {
    STAP_RETVALUE = (intptr_t)(CONTEXT->uregs ? REG_IP(CONTEXT->uregs) : 0);
  } else {
    STAP_RETVALUE = (intptr_t)(CONTEXT->kregs ? REG_IP(CONTEXT->kregs) : 0);
  }
%}

/**
 * sfunction uaddr - User space address of current running task
 *
 * Description: Returns the address in userspace that the current
 * task was at when the probe occurred. When the current running task
 * isn't a user space thread, or the address cannot be found, zero
 * is returned. Can be used to see where the current task is combined
 * with usymname() or usymdata(). Often the task will be in the VDSO
 * where it entered the kernel.
 */
function uaddr:long ()
%{ /* pure */ /* myproc-unprivileged */ /* stable */
  struct pt_regs *uregs;

if (CONTEXT->user_mode_p)
    uregs = CONTEXT->uregs;
  else
    uregs = _stp_current_pt_regs();

if (uregs)
    STAP_RETVALUE = (int64_t) REG_IP(uregs);
  else
    STAP_RETVALUE = 0;
%}

/**
 * sfunction cmdline_args - Fetch command line arguments from current process
 * @n: First argument to get (zero is normally the program itself)
 * @m: Last argument to get (or minus one for all arguments after n)
 * @delim: String to use to separate arguments when more than one.
 *
 * Description: Returns arguments from the current process starting
 * with argument number n, up to argument m. If there are less than n
 * arguments, or the arguments cannot be retrieved from the current
 * process, the empty string is returned. If m is smaller than n then
 * all arguments starting from argument n are returned. Argument zero
 * is traditionally the command itself.
 */
function cmdline_args:string(n:long, m:long, delim:string)
{
  __args = "";
  __mm = @task(task_current())->mm;
  if (__mm == 0)
    return "";

__arg_start = @mm(__mm)->arg_start;
  __arg_end = @mm(__mm)->arg_end;
  if (__arg_start == 0 || __arg_end == 0)
    return "";

for (__nr=0;
       (__arg_start < __arg_end) && // still string content left?
         (m<0 || __nr<=m); // caller still interested?
       __nr++) {

__arg = user_string(__arg_start, ""); // argv[__nr], unquoted
    __arg_start += strlen(__arg) + 1; // skip over for next iteration

if (__nr == n)     // caller starting to get interested?
      __args = __arg;
    else if (__nr > n) // caller still interested?
      {
        if (__arg == "")
          __args .= delim . "\"\""
        else
          __args .= delim . __arg;
      }
  }

return __args;
}

/**
 * sfunction cmdline_arg - Fetch a command line argument
 * @n: Argument to get (zero is the program itself)
 *
 * Description: Returns argument the requested argument from the
 * current process or the empty string when there are not that many
 * arguments or there is a problem retrieving the argument. Argument
 * zero is traditionally the command itself.
 */
function cmdline_arg:string(n:long)
{
  return cmdline_args(n, n, "");
}

/**
 * sfunction cmdline_str - Fetch all command line arguments from current process
 *
 * Description: Returns all arguments from the current process
 * delimited by spaces. Returns the empty string when the arguments
 * cannot be retrieved.
 */
function cmdline_str:string()
{
  return cmdline_args(0, -1, " ");
}

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