I think I have seen the same problem (also on PowerPC).
I am using Valgrind 3.3.1, which does not list all these problems.
(?)... Is something broken in Valgrind 3.4.1 or is it finding more
problems than the old version??
-Mogens
<----- Oprindelig email ----->
From: Rahul S [[email protected]]
Sent: 22/7/2009 6:14:33 PM
To: [email protected]
Subject: [Valgrind-users] Missing symbol names on Powerpc
I am using the memcheck tool for Valgrind 3.4.1
I compiled Valgrind for two different host environments(One was x86
Linux and other Powerpc)
The x86 version works perfectly on my application binaries, however the
Powerpc one
seems to be generating a lot of "uninitialised value" errors.
I tried running valgrind on the unix command 'ls'. It seems to generate
similar outputs( loads of "uninitialised value" errors)
# valgrind ls
==446== Memcheck, a memory error detector.
==446== Copyright (C) 2002-2008, and GNU GPL'd, by Julian Seward et al.
==446== Using LibVEX rev 1884, a library for dynamic binary translation.
==446== Copyright (C) 2004-2008, and GNU GPL'd, by OpenWorks LLP.
==446== Using valgrind-3.4.1, a dynamic binary instrumentation
framework.
==446== Copyright (C) 2000-2008, and GNU GPL'd, by Julian Seward et al.
==446== For more details, rerun with: -v
==446==
==446== Conditional jump or move depends on uninitialised value(s)
==446== at 0x40027A8: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4010F33: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446==
==446== Conditional jump or move depends on uninitialised value(s)
==446== at 0x40027EC: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4010F33: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446==
==446== Conditional jump or move depends on uninitialised value(s)
==446== at 0x4002124: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x40028C7: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4010F33: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446==
==446== Use of uninitialised value of size 4
==446== at 0x40057B4: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400602F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x40036DF: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400FF1F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400215B: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x40028C7: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4010F33: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446==
==446== Use of uninitialised value of size 4
==446== at 0x40057E8: (within /lib/ ld-2.3.6.so <http://ld-2..3.6.so>
)
==446== by 0x400602F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x40036DF: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400FF1F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400215B: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x40028C7: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4010F33: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446==
==446== Use of uninitialised value of size 4
==446== at 0x40057F8: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400602F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x40036DF: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400FF1F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400215B: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x40028C7: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4010F33: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446==
==446== Use of uninitialised value of size 4
==446== at 0x4014C78: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4018FFF: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400551B: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4007FC3: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400296F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400C2E3: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4002B27: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4003893: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400FF1F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400215B: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x40028C7: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4010F33: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446==
==446== Use of uninitialised value of size 4
==446== at 0x4014C58: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4018FFF: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400551B: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4007FC3: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400296F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400C2E3: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4002B27: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4003893: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400FF1F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400215B: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x40028C7: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4010F33: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446==
==446==
==446== Syscall param open(filename) contains uninitialised byte(s)
==446== at 0x4012900: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4008017: (within /lib/ ld-2.3.6.so <http://ld-2.3.6..so>
)
==446== by 0x400296F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400C2E3: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4002B27: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4003893: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400FF1F: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x400215B: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x40028C7: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446== by 0x4010F33: (within /lib/ ld-2.3.6.so <http://ld-2.3.6.so>
)
==446==
...
and around 100s of these more....
I referred to http://www.valgrind.org/docs/manual/faq.html#faq.unhelpful
but my binaries and libraries are not stripped and built with debug
information.
Moreover i tried it on the 'ls' command and it gave similar
"Uninitialised value" output
$ file ld-2.3.6.so <http://ld-2.3.6.so>
ld-2.3.6.so <http://ld-2.3.6.so> : ELF 32-bit MSB shared object, PowerPC
or cisco 4500, version 1 (SYSV), not stripped
$ file libc-2.3.6.so <http://libc-2.3.6.so>
libc-2.3.6.so <http://libc-2.3.6.so> : ELF 32-bit MSB shared object,
PowerPC or cisco 4500, version 1 (SYSV), for GNU/Linux 2.0.0, not
stripped
Can someone throw some light here?
-Rahul
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