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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | DESCRIPTION | FILES | SEE ALSO | COLOPHON |
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STAPVARS(3stap) STAPVARS(3stap)
stapvars - systemtap variables
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.
More files and their corresponding paths can be found in the
stappaths (7) manual page.
stap(1)
stappaths(7)
This page is part of the systemtap (a tracing and live-system
analysis tool) project. Information about the project can be
found at ⟨https://sourceware.org/systemtap/⟩. If you have a bug
report for this manual page, send it to [email protected].
This page was obtained from the project's upstream Git repository
⟨git://sourceware.org/git/systemtap.git⟩ on 2025-08-11. (At that
time, the date of the most recent commit that was found in the
repository was 2025-07-24.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
STAPVARS(3stap)
Pages that refer to this page: stap(1), stap-merge(1), stappaths(7)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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