I have been trying to follow the online tutorial for
Learn C The Hard Way.

However after setting up valgrind (I followed other links that help setting up valgrind on ubuntu 12.04), when I try to debug the c executable, I find the following errors.

ayusman@ayusman-ubuntu:~/lcthw$ valgrind ./ex4

==1984== Memcheck, a memory error detector

==1984== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.

==1984== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info

==1984== Command: ./ex4

==1984== 



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-x86-64.so.2

valgrind:  was not found whilst processing

valgrind:  symbols from the object with soname: ld-linux-x86-64.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.



ayusman@ayusman-ubuntu:~/lcthw$ 

Is there something that I can do to make valgrind finally work?

I have ubuntu 12.04 on virtual box.
My laptop is a Windows 7 64 bit OS.