mutrace --debug-info fails with undefined symbol bfd_init

[Ben Stanley]

I attempted to use mutrace to gather information about lock contention. I wanted to see symbolic stack traces, so I used the --debug-info switch (as mentioned at http://git.0pointer.de/?p=mutrace.git;a=blob;f=README;h=5195524f894b102a9de63885a63d03a06ca2494a;hb=HEAD ).
------------------------------------------------------------------
ben@bearded-dragon:~$ mutrace --debug-info gedit
mutrace: 0.2 sucessfully initialized for process gedit (pid 10513).

mutrace: Showing statistics for process gedit (pid 10513).
mutrace: 49 mutexes used.
gedit: symbol lookup error: /usr/lib/mutrace/libmutrace-backtrace-symbols.so: undefined symbol: bfd_init
------------------------------------------------------------------

Note that mutrace seems to work OK without the --debug-info switch:

------------------------------------------------------------------
ben@bearded-dragon:~$ mutrace --hash-size=10000 gedit
mutrace: 0.2 sucessfully initialized for process gedit (pid 10772).

mutrace: Showing statistics for process gedit (pid 10772).
mutrace: 49 mutexes used.

Mutex #47 (0x0x24fee80) first referenced by:
 /usr/lib/mutrace/libmutrace.so(pthread_mutex_lock+0x49) [0x7f5be2be36b9]
 /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_mutex_lock+0x11) [0x7f5be020b3a1]

Mutex #0 (0x0x2562c00) first referenced by:
 /usr/lib/mutrace/libmutrace.so(pthread_mutex_init+0xf2) [0x7f5be2be34b2]
 /lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x88088) [0x7f5be020b088]

Mutex #23 (0x0x256d3b0) first referenced by:
 /usr/lib/mutrace/libmutrace.so(pthread_mutex_init+0xf2) [0x7f5be2be34b2]
 /lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x88088) [0x7f5be020b088]

Mutex #22 (0x0x256d270) first referenced by:
 /usr/lib/mutrace/libmutrace.so(pthread_mutex_init+0xf2) [0x7f5be2be34b2]
 /lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x88088) [0x7f5be020b088]

Mutex #17 (0x0x2557330) first referenced by:
 /usr/lib/mutrace/libmutrace.so(pthread_mutex_init+0xf2) [0x7f5be2be34b2]
 /lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x88013) [0x7f5be020b013]

Mutex #31 (0x0x256eab0) first referenced by:
 /usr/lib/mutrace/libmutrace.so(pthread_mutex_init+0xf2) [0x7f5be2be34b2]
 /lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x88088) [0x7f5be020b088]

Mutex #16 (0x0x24f4080) first referenced by:
 /usr/lib/mutrace/libmutrace.so(pthread_mutex_lock+0x49) [0x7f5be2be36b9]
 /lib/x86_64-linux-gnu/libglib-2.0.so.0(g_mutex_lock+0x11) [0x7f5be020b3a1]

Mutex #43 (0x0x24fcd70) first referenced by:
 /usr/lib/mutrace/libmutrace.so(pthread_mutex_init+0xf2) [0x7f5be2be34b2]
 /lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x88088) [0x7f5be020b088]

Mutex #37 (0x0x24fbc80) first referenced by:
 /usr/lib/mutrace/libmutrace.so(pthread_mutex_init+0xf2) [0x7f5be2be34b2]
 /lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x88088) [0x7f5be020b088]

Mutex #38 (0x0x255dfc0) first referenced by:
 /usr/lib/mutrace/libmutrace.so(pthread_mutex_init+0xf2) [0x7f5be2be34b2]
 /lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x88088) [0x7f5be020b088]

mutrace: Showing 10 most contended mutexes:

 Mutex # Locked Changed Cont. tot.Time[ms] avg.Time[ms] max.Time[ms] Flags
      47 344 20 2 0.425 0.001 0.013 M-.--.
       0 65 21 1 0.349 0.005 0.342 M-.a-.
      23 4 2 1 0.411 0.103 0.391 M-.a-.
      22 435 15 0 0.130 0.000 0.014 M-.a-.
      17 186 12 0 0.048 0.000 0.005 M-.r-.
      31 24 11 0 0.565 0.024 0.538 M-.a-.
      16 1347 9 0 0.328 0.000 0.013 M-.--.
      43 617 9 0 0.183 0.000 0.014 M-.a-.
      37 129 9 0 0.054 0.000 0.020 M-.a-.
      38 29 9 0 0.881 0.030 0.371 M-.a-.
     ... ... ... ... ... ... ... ||||||
                                                                           /|||||
          Object: M = Mutex, W = RWLock /||||
           State: x = dead, ! = inconsistent /|||
             Use: R = used in realtime thread /||
      Mutex Type: r = RECURSIVE, e = ERRRORCHECK, a = ADAPTIVE /|
  Mutex Protocol: i = INHERIT, p = PROTECT /
     RWLock Kind: r = PREFER_READER, w = PREFER_WRITER, W = PREFER_WRITER_NONREC

mutrace: Note that the flags column R is only valid in --track-rt mode!

mutrace: Total runtime is 30.111 ms.

mutrace: Results for SMP with 8 processors.
------------------------------------------------------------------

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: mutrace 0.2.0-2
ProcVersionSignature: Ubuntu 3.11.0-18.32-generic 3.11.10.4
Uname: Linux 3.11.0-18-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.2
Architecture: amd64
Date: Thu Mar 27 13:37:40 2014
Dependencies:
 gcc-4.8-base 4.8.1-10ubuntu9
 libc6 2.17-93ubuntu4
 libgcc1 1:4.8.1-10ubuntu9
 multiarch-support 2.17-93ubuntu4
InstallationDate: Installed on 2013-09-13 (194 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
SourcePackage: mutrace
UpgradeStatus: Upgraded to saucy on 2014-01-15 (70 days ago)

[Mark Nunberg (mnunberg)]

I also ran into this issue (Using Debian, but same issue). Apparently the solution is twofold:

(1) Install `binutils-dev`. This will give you a `libbfd.so`
(2) `LD_PRELOAD=/usr/lib/libbfd.so mutrace -d ...`

As a workaround

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.