Public bug reported:

valgrind works as expected on 64-bit binaries, when using a x86-64 
installation...

[icculus@taise ~]$ cat hello.c 
#include <stdio.h>
int main(void) { printf("hello.\n"); return 0; }

[icculus@taise ~]$ gcc -m64 -o hello hello.c 
[icculus@taise ~]$ file hello
hello: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked 
(uses shared libs), for GNU/Linux 2.6.15, not stripped
[icculus@taise ~]$ valgrind ./hello
==18291== Memcheck, a memory error detector
==18291== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al.
==18291== Using Valgrind-3.6.1-Debian and LibVEX; rerun with -h for copyright 
info
==18291== Command: ./hello
==18291== 
hello.
==18291== 
==18291== HEAP SUMMARY:
==18291==     in use at exit: 0 bytes in 0 blocks
==18291==   total heap usage: 0 allocs, 0 frees, 0 bytes allocated
==18291== 
==18291== All heap blocks were freed -- no leaks are possible
==18291== 
==18291== For counts of detected and suppressed errors, rerun with: -v
==18291== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 4 from 4)


...however, it does not work with 32-bit binaries...

[icculus@taise ~]$ gcc -m32 -o hello hello.c
[icculus@taise ~]$ file hello
hello: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically 
linked (uses shared libs), for GNU/Linux 2.6.15, not stripped
[icculus@taise ~]$ valgrind ./hello
==18492== Memcheck, a memory error detector
==18492== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al.
==18492== Using Valgrind-3.6.1-Debian and LibVEX; rerun with -h for copyright 
info
==18492== Command: ./hello
==18492== 

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:      index
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.


Please note that "lib6-dbg" is installed on this system...

[icculus@taise ~]$ sudo apt-get install libc6-dbg
Reading package lists... Done
Building dependency tree       
Reading state information... Done
libc6-dbg is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.


This worked with 32-bit binaries in the past (perhaps as recently as 11.04, but 
I can't say for certain).

This is happening on a fresh 11.04 x86-64 desktop install, default
Ubuntu (not Kubuntu, etc). There are some non-default packages
installed, like multilib-gcc, as you can tell by the "gcc -m32" command
line working, but I don't think these are causing issues.

Let me know if you need more information.

--ryan.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: valgrind 1:3.6.1-0ubuntu3
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
Date: Tue Oct 25 01:13:48 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: valgrind
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: valgrind (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug oneiric running-unity

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https://bugs.launchpad.net/bugs/881236

Title:
  valgrind on amd64 no longer works with 32-bit binaries

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