STAPVARS(3stap)

NAME
stapvars - systemtap variables

DESCRIPTION
The following sections enumerate the public variables provided by standard tapsets installed under @prefix@/share/systemtap/tapset. 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
@prefix@/share/systemtap/tapset

SEE ALSO
stap(1)