[I'm resending in plain-text sorry for not configuring before sending...]
Dear Mr. Maintainer,
I have problems running 32-bit binaries in my 64-bit valgrind, however
this likely a bug related to eglibc or possibly in how valgrind
depends on eglibc's packages. I expect that both 32-bit and 64-bit
binaries can be run inside valgrind (or at least that there are
packages recommended by valgrind that I install to do so).
The output from my 64-bit valgrind when running a 32-bit binary:
--22537-- Reading syms from /lib32/ld-2.13.so (0x4400000)
--22537-- 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
As far as I can see /lib32/ld-2.13.so (installed by libc6-i386) is
missing a .gnu_debuglink section which points to a corresponding
debug-version located under /usr/lib/debug. The reason for this is
likely that the installed libc6-dbg does not contain any libraries
with debug information for the libraries installed by libc6-i386.
--23048-- Reading syms from /lib/x86_64-linux-gnu/libc-2.13.so
(0x4a22000)
--23048-- Considering /lib/x86_64-linux-gnu/libc-2.13.so ..
--23048-- .. CRC mismatch (computed 9d6b2fdb wanted f9c6fbfb)
--23048-- Considering
/usr/lib/debug/lib/x86_64-linux-gnu/libc-2.13.so ..
--23048-- .. CRC is valid
For 64-bit binaries (shown above) /lib/x86_64-linux-gnu/ld-2.13.so
(installed by libc6) does have a .gnu_debuglink section pointing to
the debug-version of located in /usr/lib/debug (more specifically
/usr/lib/debug/lib/x86_64-linux-gnu/ld-2.13.so) which is installed by
libc6-dbg.
This small script collects some (hopefully relevant) information and
shows concisely what the problem is:
#!/bin/bash
dpkg -l valgrind | tail -1
dpkg -l gcc | tail -1
dpkg -l libc6 | tail -1
dpkg -l libc6-dbg | tail -1
dpkg -l libc6-i386 | tail -1
dpkg -l linux-image-amd64 | tail -1
echo -e '#include <stdio.h>\nint main() { printf("goodbye world!\\n");
}' > testing.c
gcc -m64 -o ./testing-64 testing.c
echo "=============64646464============="
valgrind -v ./testing-64
gcc -m32 -o ./testing-32 testing.c
echo "=============32323232============="
valgrind -v ./testing-32
A log of the output of the script is attached.
If there is any other information you need to help me solve this
problem I'm naturally happy to provide it. :)
/ Sebastian
-- System Information:
Debian Release: wheezy/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 3.2.0-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL
set to en_US.UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages valgrind depends on:
ii libc6 2.13-27
ii libc6-dbg 2.13-27
Versions of packages valgrind recommends:
ii gdb 7.4really-1
Versions of packages valgrind suggests:
pn alleyoop <none>
pn kcachegrind 4:4.7.4-3
pn valkyrie <none>
-- no debconf information
ii valgrind 1:3.7.0-3
memory debugger and profiler
ii gcc 4:4.6.2-4 GNU C
compiler
ii libc6:amd64 2.13-27
Embedded GNU C Library: Shared libraries
ii libc6-dbg:amd64 2.13-27
Embedded GNU C Library: detached debugging symbols
ii libc6-i386 2.13-27
Embedded GNU C Library: 32-bit shared libraries for AMD64
ii linux-image-amd64 3.2+44 Linux
for 64-bit PCs (meta-package)
=============64646464=============
==23345== Memcheck, a memory error detector
==23345== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==23345== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==23345== Command: ./testing-64
==23345==
--23345-- Valgrind options:
--23345-- --suppressions=/usr/lib/valgrind/debian-libc6-dbg.supp
--23345-- -v
--23345-- Contents of /proc/version:
--23345-- Linux version 3.2.0-2-amd64 (Debian 3.2.12-1)
(debian-ker...@lists.debian.org) (gcc version 4.6.3 (Debian 4.6.3-1) ) #1 SMP
Tue Mar 20 18:36:37 UTC 2012
--23345-- Arch and hwcaps: AMD64, amd64-sse3-cx16
--23345-- Page sizes: currently 4096, max supported 4096
--23345-- Valgrind library directory: /usr/lib/valgrind
--23345-- Reading syms from /tmp/test/testing-64 (0x400000)
--23345-- Reading syms from /lib/x86_64-linux-gnu/ld-2.13.so (0x4000000)
--23345-- Considering /lib/x86_64-linux-gnu/ld-2.13.so ..
--23345-- .. CRC mismatch (computed 6da8e8c1 wanted c5172abb)
--23345-- Considering /usr/lib/debug/lib/x86_64-linux-gnu/ld-2.13.so ..
--23345-- .. CRC is valid
--23345-- Reading syms from /usr/lib/valgrind/memcheck-amd64-linux (0x38000000)
--23345-- object doesn't have a symbol table
--23345-- object doesn't have a dynamic symbol table
--23345-- Reading suppressions file: /usr/lib/valgrind/debian-libc6-dbg.supp
--23345-- Reading suppressions file: /usr/lib/valgrind/default.supp
==23345== embedded gdbserver: reading from
/tmp/vgdb-pipe-from-vgdb-to-23345-by-sebras-on-hostname
==23345== embedded gdbserver: writing to
/tmp/vgdb-pipe-to-vgdb-from-23345-by-sebras-on-hostname
==23345== embedded gdbserver: shared mem
/tmp/vgdb-pipe-shared-mem-vgdb-23345-by-sebras-on-hostname
==23345==
==23345== TO CONTROL THIS PROCESS USING vgdb (which you probably
==23345== don't want to do, unless you know exactly what you're doing,
==23345== or are doing some strange experiment):
==23345== /usr/lib/valgrind/../../bin/vgdb --pid=23345 ...command...
==23345==
==23345== TO DEBUG THIS PROCESS USING GDB: start GDB like this
==23345== /path/to/gdb ./testing-64
==23345== and then give GDB the following command
==23345== target remote | /usr/lib/valgrind/../../bin/vgdb --pid=23345
==23345== --pid is optional if only one valgrind process is running
==23345==
--23345-- REDIR: 0x4016720 (strlen) redirected to 0x380438c7 (???)
--23345-- Reading syms from /usr/lib/valgrind/vgpreload_core-amd64-linux.so
(0x4022000)
--23345-- object doesn't have a symbol table
--23345-- Reading syms from /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so
(0x4024000)
--23345-- object doesn't have a symbol table
--23345-- REDIR: 0x4016590 (index) redirected to 0x4029060 (index)
--23345-- REDIR: 0x4016610 (strcmp) redirected to 0x402a020 (strcmp)
--23345-- Reading syms from /lib/x86_64-linux-gnu/libc-2.13.so (0x4a22000)
--23345-- Considering /lib/x86_64-linux-gnu/libc-2.13.so ..
--23345-- .. CRC mismatch (computed 9d6b2fdb wanted f9c6fbfb)
--23345-- Considering /usr/lib/debug/lib/x86_64-linux-gnu/libc-2.13.so ..
--23345-- .. CRC is valid
--23345-- REDIR: 0x4aa55d0 (strcasecmp) redirected to 0x4022640
(_vgnU_ifunc_wrapper)
--23345-- REDIR: 0x4aa7890 (strncasecmp) redirected to 0x4022640
(_vgnU_ifunc_wrapper)
--23345-- REDIR: 0x4aa3630 (__GI_strrchr) redirected to 0x4028e80 (__GI_strrchr)
--23345-- REDIR: 0x4aa1b50 (__GI_strlen) redirected to 0x40293c0 (__GI_strlen)
goodbye world!
--23345-- REDIR: 0x4a9c780 (free) redirected to 0x4027a40 (free)
==23345==
==23345== HEAP SUMMARY:
==23345== in use at exit: 0 bytes in 0 blocks
==23345== total heap usage: 0 allocs, 0 frees, 0 bytes allocated
==23345==
==23345== All heap blocks were freed -- no leaks are possible
==23345==
==23345== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 4 from 4)
--23345--
--23345-- used_suppression: 4 dl-hack3-cond-1
==23345==
==23345== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 4 from 4)
=============32323232=============
==23354== Memcheck, a memory error detector
==23354== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al.
==23354== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info
==23354== Command: ./testing-32
==23354==
--23354-- Valgrind options:
--23354-- --suppressions=/usr/lib/valgrind/debian-libc6-dbg.supp
--23354-- -v
--23354-- Contents of /proc/version:
--23354-- Linux version 3.2.0-2-amd64 (Debian 3.2.12-1)
(debian-ker...@lists.debian.org) (gcc version 4.6.3 (Debian 4.6.3-1) ) #1 SMP
Tue Mar 20 18:36:37 UTC 2012
--23354-- Arch and hwcaps: X86, x86-sse1-sse2
--23354-- Page sizes: currently 4096, max supported 4096
--23354-- Valgrind library directory: /usr/lib/valgrind
--23354-- Reading syms from /lib32/ld-2.13.so (0x4400000)
--23354-- 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.
