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NAME | DESCRIPTION | SEE ALSO | COLOPHON |
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ERROR::PASS4(7stap) ERROR::PASS4(7stap)
error::pass4 - systemtap pass-4 errors
Errors that occur during pass 4 (compilation) have generally only
a few causes:
kernel or OS version changes
The systemtap runtime and embedded-C fragments in the
tapset library are designed to be portable across a wide
range of OS versions. However, incompatibilities can
occur when some OS changes occur, such as kernel
modifications that change functions, types, or macros
referenced by systemtap. Upstream
(git://sourceware.org/git/systemtap.git) builds of
systemtap are often quickly updated to include relevant
fixes, so try getting or making an updated build.
Reworded: build systemtap from git for use with very young
kernels. If the issue persists, report the problem to the
systemtap developers.
buggy embedded-C code
Embedded-C code in your own guru-mode script cannot be
checked by systemtap, and is passed through verbatim to
the compiler. Errors in such snippets of code may be
found during the pass-4 compiler invocation, though may be
hard to identify by the compiler errors.
incompatible embedded-C code
The interface standards between systemtap-generated code
and embedded-C code occasionally change. For example,
before version 1.8, arguments were passed using macros
THIS->foo and THIS->__retvalue but from version 1.8
onward, using STAP_ARG_foo and STAP_RETVALUE. Adjust your
embedded-C code to current standards, or use the stap
--compatible=VERSION option to make systemtap use a
different one.
compiler bugs and mysteries
Messages such as "internal compiler error" suggest
compiler problems. These should be reported to the
compiler developers in the form of a preprocessed .i file,
plus the compiler command line. To gather relevant
information, run
stap -k --vp 0003 -p4 ....
Systemtap will report the saved temporary directory, and
the compiler command line it attempted. Go to the
directory to find he main generated file stap_NNNNN_src.c.
Force the compiler to produce a preprocessed file with:
make -C /lib/modules/`uname -r`/build M=`pwd` stap_NNNNN_src.i
(note the .i suffix), and the compiler command line should
be in the file .stap_NNNNN_src.i.cmd.
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 2022-12-17. (At that
time, the date of the most recent commit that was found in the
repository was 2022-12-16.) 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
man-pages@man7.org
ERROR::PASS4(7stap)
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