userspace probe breakage with gcc 4.8 due to inablility to locate semaphore variable

Frank Ch. Eigler fche@redhat.com
Mon Apr 20 20:06:00 GMT 2015


mkulkarni wrote:
>
 [...]
> Meanwhile, in my setup, I have found out that the runtime box has
> native gcc 4.4 And the regression is because the build uses gcc 4.8
> (which uses dwarf4 by default)

Why do you think so?  stap works fine here on that version of gcc, and
older, and newer.  Can you forward your full gcc/stap/elfutils/kernel
versions, and perhaps a binary (compiled with your gcc 4.8) that was
giving stap a hard time?


- FChE



More information about the Systemtap mailing list