NAME

       stapvars - systemtap variables

DESCRIPTION

       The  following  sections  enumerate  the  public  variables  provided  by standard tapsets
       installed, (the installation path is  show  in  the  stappaths  (7)  manual  page).   Each
       variable  is described with a type, and its behavior/restrictions.  The syntax is the same
       as printed with the stap option -p2.  Examples:

       example1:long
              Variable "example1" contains an integer.

       example2:string [long]
              Variable "example2" is an array of strings, indexed by integers.

   ARGV
       argc:long
              Contains the value of the  $# value: the number of command line arguments passed to
              the systemtap script.  It is initialized with an implicit begin(-1) probe.

       argv:string [long]
              Contains  each  command  line argument as a string.  argv[1] will equal @1 if there
              was at least one command line argument.  Arguments beyond #32 are not  transcribed,
              and  produce  a  warning  message  within the begin(-1) probe that initializes this
              array.

   NULL
       NULL:long
              Simply defined as the number 0.

FILES

       More files and their corresponding paths can be found in the stappaths (7) manual page.

SEE ALSO

       stap(1)
       stappaths(7)

                                                                                  STAPVARS(3stap)