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HTML rendering created 2024-06-26 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 | SEE ALSO | COLOPHON |
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WARNING::SYMBOLS(7stap) WARNING::SYMBOLS(7stap)
warning::symbols - systemtap missing-symbols warnings
For some probing operations, where DWARF debugging data is not
available, systemtap needs ELF symbols for the relevant binaries.
This allows at least probe addresses to be calculated, some
variables resolved, and with @cast() and headers, maybe even some
types.
kernel symbol table
Systemtap may need a linux-build style System.map file to
find addresses of kernel functions/data. It may be
possible to create it by hand:
% su
# cp /proc/kallsyms /boot/System.map-`uname -r`
or
# nm /lib/modules/`uname -r`/build/vmlinux > /boot/System.map-`uname -r`
minisymbols
On some systems, binaries may be compiled with a subset of
symbols useful for function tracing and backtraces. This
'Minisymbols' is a xz compressed section labeled .gnu_de‐
bugdata. Support for minisymbols relies on elfutils ver‐
sion 0.156 or later.
compressed symbols
On some systems, symbols may be available, but compressed
into .zdebug_* sections. Support for compressed symbols
relies on elfutils version 0.153 or later.
stap(1),
stappaths(7),
strip(1),
warning::debuginfo(7stap),
error::dwarf(7stap),
error::reporting(7stap),
http://fedoraproject.org/wiki/Features/MiniDebugInfo
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 2024-06-14. (At that
time, the date of the most recent commit that was found in the
repository was 2024-06-13.) 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]
WARNING::SYMBOLS(7stap)
Pages that refer to this page: warning::debuginfo(7stap)
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HTML rendering created 2024-06-26 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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