[Valgrind-users] Problem using Valgrind with libc6-dbg

[Michael R. H. <ma...@us...>]

Hello

I am running Precise Puppy 5.4.2, which is built from Ubuntu Precise  
Pangolin 12.04.1+ binary DEB packages, hence has binary compatibility  
with Ubuntu and access to the vast Ubuntu package repository.

I have installed the Valgrind 3.7.0 package together with the  
libc6-dbg package from the Ubuntu package repository.

I ran the command: valgrind -v ls -l and I get:

==20396== Memcheck, a memory error detector
==20396== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==20396== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==20396== Command: ls -l
==20396==
--20396-- Valgrind options:
--20396--    --suppressions=/usr/lib/valgrind/debian-libc6-dbg.supp
--20396--    -v
--20396-- Contents of /proc/version:
--20396--   Linux version 3.2.29 (root@puppypc6993) (gcc version 4.6.3  
(Ubuntu/Linaro 4.6.3-1ubuntu5) ) #1 SMP Thu Sep 13 20:33:02 GMT-8 2012
--20396-- Arch and hwcaps: X86, x86-sse1-sse2
--20396-- Page sizes: currently 4096, max supported 4096
--20396-- Valgrind library directory: /usr/lib/valgrind
--20396-- Reading syms from /lib/ld-2.15.so (0x4000000)
--20396--   Considering /lib/ld-2.15.so ..
--20396--   .. CRC mismatch (computed 405891ab wanted 9a1d2f37)
--20396--    object doesn't have a symbol table

valgrind:  Fatal error at startup: a function redirection
valgrind:  which is mandatory for this platform-tool combination
valgrind:  cannot be set up.  Details of the redirection are:
valgrind:
valgrind:  A must-be-redirected function
valgrind:  whose name matches the pattern:      strlen
valgrind:  in an object with soname matching:   ld-linux.so.2
valgrind:  was not found whilst processing
valgrind:  symbols from the object with soname: ld-linux.so.2
valgrind:
valgrind:  Possible fixes: (1, short term): install glibc's debuginfo
valgrind:  package on this machine.  (2, longer term): ask the packagers
valgrind:  for your Linux distribution to please in future ship a non-
valgrind:  stripped ld.so (or whatever the dynamic linker .so is called)
valgrind:  that exports the above-named function using the standard
valgrind:  calling conventions for this platform.  The package you need
valgrind:  to install for fix (1) is called
valgrind:
valgrind:    On Debian, Ubuntu:                 libc6-dbg
valgrind:    On SuSE, openSuSE, Fedora, RHEL:   glibc-debuginfo
valgrind:
valgrind:  Cannot continue -- exiting now.  Sorry.


The filepath to the debug symbols installed by the 'libc6-dbg' package:

/usr/lib/debug/lib/i386-linux-gnu

Can anyone explain why Valgrind is not finding the debug symbols?

TIA
Michael