User login |
stapvars (5)
STAPVARS(5) STAPVARS(5)
NAME
stapvars - systemtap variables
DESCRIPTION
The following sections enumerate the public variables provided by stan-
dard tapsets installed under /usr/share/systemtap/tapset. Each vari-
able is described with a type, and its behavior/restrictions. The syn-
tax 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. Argu-
ments beyond #32 are not transcribed, and produce a warning mes-
sage within the begin(-1) probe that initializes this array.
NULL
NULL:long
Simply defined as the number 0.
FILES
/usr/share/systemtap/tapset
SEE ALSO
stap(1)
Red Hat 2008-11-13 STAPVARS(5)
|