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_debugda‐ ta. Support for minisymbols relies on elfutils version 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@example.com. This page was obtained from the project's upstream Git repository ⟨git://sourceware.org/git/systemtap.git⟩ on 2017-04-25. 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 firstname.lastname@example.org WARNING::SYMBOLS(7stap)
Pages that refer to this page: warning::debuginfo(7stap)