Re: libc symbols on suse

[Maynard J. <may...@us...>]

Steven Bergsieker wrote:
> I've discovered that my program is spending a significant chunk of time in 
> libc, but I can't get any symbol information for the libc library. Am I 
> doing something wrong, or does my copy of libc just not have symbol 
> information? Where can I find a copy with that information? (This is on suse 
> 10.3)
>   
It appears that your libc library has been super stripped, removing all 
symbol info.  See http://en.opensuse.org/Bugs:An_application_crashed for 
info on installing debuginfo packages that contain the symbol and debug 
info.  OProfile will automatically look for the debuginfo package if it 
can't find what it needs in the runtime binary.

-Maynard
> Thanks,
> Steven
>
> opcontrol --status
> Daemon running: pid 2373
> Event 0: CPU_CLK_UNHALTED:100000:0:1:1
> Separate options: library
> vmlinux file: none
> Image filter: none
> Call-graph depth: 0
>
> opcontrol --reset
> opcontrol --start
> TestBedApplication
> opcontrol --stop
> opcontrol --dump
> opreport -t 0.1 --demangle=smart --symbols TestBedApplication
>
> Produces the following relevant output:
>
> 158923   19.3977  libc-2.6.1.so                (no symbols)
>
>
>
>
>
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