Red Hat ENTERPRISE LINUX 5.4 - SYSTEMTAP LANGUAGE Reference Manual page 5

8.3. Integer extractors ....................................................................................................... 35
8.3.1. @count(s) ....................................................................................................... 35
8.3.2. @sum(s) ......................................................................................................... 35
8.3.3. @min(s) .......................................................................................................... 35
8.3.4. @max(s) ......................................................................................................... 35
8.3.5. @avg(s) .......................................................................................................... 35
8.4. Histogram extractors ................................................................................................... 36
8.4.1. @hist_linear .................................................................................................... 36
8.4.2. @hist_log ........................................................................................................ 37
9. Predefined functions
9.1. Output functions ......................................................................................................... 39
9.1.1. error ................................................................................................................ 39
9.1.2. log .................................................................................................................. 39
9.1.3. print ................................................................................................................ 39
9.1.4. printf ............................................................................................................... 39
9.1.5. printd .............................................................................................................. 42
9.1.6. printdln ............................................................................................................ 43
9.1.7. println .............................................................................................................. 43
9.1.8. sprint ............................................................................................................... 43
9.1.9. sprintf .............................................................................................................. 43
9.1.10. system .......................................................................................................... 44
9.1.11. warn .............................................................................................................. 44
9.2. Context at the probe point .......................................................................................... 44
9.2.1. backtrace ........................................................................................................ 44
9.2.2. caller ............................................................................................................... 44
9.2.3. caller_addr ...................................................................................................... 44
9.2.4. cpu ................................................................................................................. 45
9.2.5. egid ................................................................................................................ 45
9.2.6. euid ................................................................................................................ 45
9.2.7. execname ....................................................................................................... 45
9.2.8. gid .................................................................................................................. 45
9.2.9. is_return .......................................................................................................... 46
9.2.10. pexecname .................................................................................................... 46
9.2.11. pid ................................................................................................................ 46
9.2.12. ppid ............................................................................................................... 46
9.2.13. tid ................................................................................................................. 46
9.2.14. uid ................................................................................................................ 46
9.2.15. print_backtrace .............................................................................................. 47
9.2.16. print_regs ...................................................................................................... 47
9.2.17. print_stack ..................................................................................................... 47
9.2.18. stack_size ..................................................................................................... 47
9.2.19. stack_unused ................................................................................................ 47
9.2.20. stack_used .................................................................................................... 48
9.2.21. stp_pid .......................................................................................................... 48
9.2.22. target ............................................................................................................ 48
9.3. Task data .................................................................................................................. 48
9.3.1. task_cpu ......................................................................................................... 49
9.3.2. task_current .................................................................................................... 49
9.3.3. task_egid ........................................................................................................ 49
9.3.4. task_execname ............................................................................................... 49
9.3.5. task_euid ........................................................................................................ 49
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