ERROR::INODE-UPROBES(7stap)                      ERROR::INODE-UPROBES(7stap)

NAME         top

       error::inode-uprobes - limitations of inode-uprobes

DESCRIPTION         top

       The uprobes kernel facility introduced in Linux 3.5 aims to supplant
       the earlier out-of-tree utrace patch to enable user-space probing.
       There have been some functional limitations in inode-uprobes that
       preclude some systemtap constructs.  Over time, we hope these
       regressions will be corrected.

       function.return probes
              process.function().return probes require "return-probes" or
              "uretprobes" functionality, which was not implemented in the
              builtin inode-uprobes until kernel 3.10.  If you cannot
              upgrade your kernel, consider using process.statement() probes
              placed on source line numbers at the function's return
              statements.

       function.statement.absolute probes
              In utrace-equipped kernels, systemtap made it possible to
              address probes by literal addresses in the process virtual
              memory address space.  The new inode-uprobes does not have
              this capability.

SEE ALSO         top

       stap(1),
       http://kernelnewbies.org/Linux_3.5 ,
       http://sourceware.org/systemtap/wiki/utrace ,
       error::reporting(7stap)

COLOPHON         top

       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 2018-02-02.  (At that
       time, the date of the most recent commit that was found in the repos‐
       itory was 2018-02-01.)  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::INODE-UPROBES(7stap)

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