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NAME | DESCRIPTION | GATHERING MORE INFORMATION | SEE ALSO | COLOPHON |
ERROR::PASS1(7stap) ERROR::PASS1(7stap)
error::pass1 - systemtap pass-1 errors
Errors that occur during pass 1 (parsing) usually mean a basic syntax
error of some sort occurred in the systemtap script. There are
several classes of problems possible:
plain syntax error
The systemtap script parser detects a large variety of errors,
such as missing operands, bad punctuation. It tries to list
what kinds of tokens it was expecting to see, and will show
the region of the source code with the problem. Please review
the stap(1) man page and/or the tutorial, to correct the
script's syntax.
grammar ambiguities
There is at least one known ambiguity in the systemtap
grammar. It relates to the optionality of ; (semicolon)
separators between statements, and the ++ and --
increment/decrement operators. If the parser indicates an
error, consider adding some explicit ; separators between
nearby statements and try again.
missing command line arguments
A systemtap script that uses the $N and @N constructs for
substituting in command-line options may fail if not enough
options were given on the stap command line.
compatibility changes
Some versions of systemtap have changed the language
incompatibly, for example by adding the try/catch keywords for
exception handling. In such cases, rerun systemtap with the
--compatibility=VERSION option, substituting the last
systemtap version where your script was known to work. You
may also check the release-history NEWS file for compatibility
changes.
Increasing the verbosity of pass-1 with an option such as --vp 1 can
help pinpoint the problem.
stap(1),
error::reporting(7stap)
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 systemtap@sourceware.org. This page was
obtained from the project's upstream Git repository
⟨git://sourceware.org/git/systemtap.git⟩ on 2017-07-05. If you dis‐
cover 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 man-pages@man7.org
ERROR::PASS1(7stap)