In Ubuntu16.10 : not able to run perf command

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== Comment: #0 - Praveen K. Pandey <email address hidden> - 2016-07-14 10:43:07 ==
Hi

  Tried to run perf command in Ubuntu16.10 command failing with libbfd-2.26-system.so not found .

Reproducible:

1- Install system with Ubuntu16.10
2- Install linux-tools and other package which is required by perf .
3- run perf command

Expected result :

Perf command should able to run successfully

Actual Result:

perf command failed as complaining about libbfd-2.26-system.so

LOG:

root@ltciofvtr-firestone2:~# cat /etc/issue
Ubuntu Yakkety Yak (development branch) \n \l

root@ltciofvtr-firestone2:~# uname -a
Linux ltciofvtr-firestone2 4.4.0-30-generic #49-Ubuntu SMP Fri Jul 1 10:00:36 UTC 2016 ppc64le ppc64le ppc64le GNU/Linux
root@ltciofvtr-firestone2:~#

root@ltciofvtr-firestone2:~# perf
/usr/lib/linux-tools/4.4.0-30-generic/perf: error while loading shared libraries: libbfd-2.26-system.so: cannot open shared object file: No such file or directory
root@ltciofvtr-firestone2:~# perf record ls
/usr/lib/linux-tools/4.4.0-30-generic/perf: error while loading shared libraries: libbfd-2.26-system.so: cannot open shared object file: No such file or directory
root@ltciofvtr-firestone2:~#

Regards
Praveen

== Comment: #3 - Chandan Kumar <email address hidden> - 2016-07-15 04:40:04 ==

perf here is looking for .so file "libbfd-2.26-system.so" however the installed version is "libbfd-2.26.1-system.so", which is updated version of libbfd but perf is looking for older version.

Work around is creating a symlink, which seems to be working.

==============

root@ubuntu:~# perf
/usr/lib/linux-tools/4.4.0-30-generic/perf: error while loading shared libraries: libbfd-2.26-system.so: cannot open shared object file: No such file or directory
root@ubuntu:~#

root@ubuntu:~# find / -iname libbfd*
/usr/lib/powerpc64le-linux-gnu/libbfd-2.26.1-system.so
root@ubuntu:~#

root@ubuntu:~# ln -s /usr/lib/powerpc64le-linux-gnu/libbfd-2.26.1-system.so /usr/lib/powerpc64le-linux-gnu/libbfd-2.26-system.so
root@ubuntu:~# ll /usr/lib/powerpc64le-linux-gnu/libbfd-2.26*
-rw-r--r-- 1 root root 1390504 Jun 30 03:52 /usr/lib/powerpc64le-linux-gnu/libbfd-2.26.1-system.so
lrwxrwxrwx 1 root root 54 Jul 15 03:20 /usr/lib/powerpc64le-linux-gnu/libbfd-2.26-system.so -> /usr/lib/powerpc64le-linux-gnu/libbfd-2.26.1-system.so

root@ubuntu:~# perf

 usage: perf [--version] [--help] [OPTIONS] COMMAND [ARGS]

 The most commonly used perf commands are:
   annotate Read perf.data (created by perf record) and display annotated code
   archive Create archive with object files with build-ids found in perf.data file
   bench General framework for benchmark suites
   buildid-cache Manage build-id cache.
   buildid-list List the buildids in a perf.data file
   data Data file related processing
   diff Read perf.data files and display the differential profile
   evlist List the event names in a perf.data file
   inject Filter to augment the events stream with additional information
   kmem Tool to trace/measure kernel memory properties
   kvm Tool to trace/measure kvm guest os
   list List all symbolic event types
   lock Analyze lock events
   mem Profile memory accesses
   record Run a command and record its profile into perf.data
   report Read perf.data (created by perf record) and display the profile
   sched Tool to trace/measure scheduler properties (latencies)
   script Read perf.data (created by perf record) and display trace output
   stat Run a command and gather performance counter statistics
   test Runs sanity tests.
   timechart Tool to visualize total system behavior during a workload
   top System profiling tool.
   trace strace inspired tool
   probe Define new dynamic tracepoints

 See 'perf help COMMAND' for more information on a specific command.

root@ubuntu:~#
root@ubuntu:~# perf record -a
^C[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.071 MB perf.data (7 samples) ]

root@ubuntu:~# perf report
root@ubuntu:~#

== Comment: #4 - Praveen K. Pandey <email address hidden> - 2016-07-15 04:50:39 ==
thanks Chandan !!

  same issue seen in ubuntu16.04.1 as well i think fix will provided for ubuntu16.04.1 as well

root@ubuntu:~# perf
/usr/lib/linux-tools/4.4.0-30-generic/perf: error while loading shared libraries: libbfd-2.26-system.so: cannot open shared object file: No such file or directory
root@ubuntu:~#
root@ubuntu:~# cat /etc/issue
Ubuntu 16.04 LTS \n \l

root@ubuntu:~# uname -a
Linux ubuntu 4.4.0-30-generic #49-Ubuntu SMP Fri Jul 1 10:00:36 UTC 2016 ppc64le ppc64le ppc64le GNU/Linux
root@ubuntu:~#

Regards
Praveen

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2016-08-09 11:51 EDT-------
Canonical,

Can you please take a look and provide your thoughts.

Thanks,

[Steve Langasek (vorlon)]

this bug was marked as a duplicate of another bug report, which has already been resolved.

[bugproxy (bugproxy)]

------- Comment From <email address hidden> 2016-08-14 10:20 EDT-------
Hi ,

tested today's build and it working fine , i am able to perf command in ubuntu16.10

Regards
Praveen