Re: [Valgrind-users] Using Valgrind (helgrind/drd) to detect data races in Inter-Process Communications
On Mon, Aug 1, 2016 at 1:45 PM, CJ YAMIGOS <cjyami...@gmail.com> wrote: > Hi everyone, > > I started recently using Valgrind (Helgrind and DRD), and I mainly want to > detect data races in my program composed of two processes that communicate > via a POSIX shared memory object. I found quite a lot of examples showing > how Valgrind can detect data races in multithreaded applications (where all > threads belong to the same process). However, this is not the case I am > interested in. > > Basically, my program is composed of two processes, namely Server and > Client. The Server is responsible of creating a named shared memory object > with "shm_open", sets the size with "ftruncate" and maps the shared memory > object to Server's virtual address space with "mmap". On the other hand, the > Client opens/gets this shared memory object with "shm_open" and then maps it > to Client's virtual address space with "mmap". Both Server and Client > processes have Read & Write access to this shared memory object. There is a > nice example in: > https://www.softprayog.in/programming/interprocess-communication-using-posix-shared-memory-in-linux; > the main difference between this example and my program is I am not using > any semaphore (i.e., any kind of protection mechanism neither) at all. > > When running my program with Valgrind (v 3.7.0) in Linux, I am getting no > warnings about potential data races in my program. In fact, when both Server > and Client processes are running in parallel (i.e., each in a different > processor core) and there is not a mechanism protecting the access to the > shared memory object (e.g., a data structure), I expect somehow to see some > data races warnings. Neither Helgrind nor DRD are able to detect data races between shared memory pages. This is hard, because the tool needs to track the happens-before relation between threads belonging to different processes. Because Valgrind itself is single-threaded (i.e. it serializes the threads of the inspected program), synchronizing the states of two Valgrind processes that have just a common shared memory page is going to be quite painful. > So, I wonder whether I am missing something here or Valgrind just does not > support data race detection in Inter-Process Communications (like the one I > have in my program). Many thanks in advance for your helps! > > Best, > > Carlos H. > > -- > > _______ > Valgrind-users mailing list > Valgrind-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/valgrind-users > -- Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Straße, 33 80636 München Geschäftsführer: Matthew Scott Sucherman, Paul Terence Manicle Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg -- ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] helgrind, clang and thread_local
On Sat, Mar 19, 2016 at 10:02 PM, David Faure <fa...@kde.org> wrote:
> The following code (from Qt5's qlogging.cpp)
>
> static thread_local bool msgHandlerGrabbed = false;
>
> static bool grabMessageHandler()
> {
> if (msgHandlerGrabbed)
> return false;
>
> msgHandlerGrabbed = true;
> return true;
> }
>
> static void ungrabMessageHandler()
> {
> msgHandlerGrabbed = false;
> }
>
> (purpose: avoiding recursion)
>
> when compiled with clang 3.5.0, and called from multiple threads, leads to
> this helgrind warning:
>
> ==1218== Possible data race during write of size 1 at 0x1E1F86F0 by thread #17
> ==1218== Locks held: none
> ==1218==at 0x783637B: grabMessageHandler() (qlogging.cpp:1543)
> ==1218==by 0x783640B: qt_message_print(QtMsgType, QMessageLogContext
> const&, QString const&) (qlogging.cpp:1571)
> ==1218==by 0x783658A: qt_message_output(QtMsgType, QMessageLogContext
> const&, QString const&) (qlogging.cpp:1622)
> ==1218==by 0x798DC32: QDebug::~QDebug() (qdebug.cpp:150)
> ==1218==by 0x4F24EF6: CompletionThread::done() (kurlcompletion.cpp:232)
> ==1218==by 0x4F1ECCD: DirectoryListThread::run() (kurlcompletion.cpp:368)
> ==1218==by 0x784B0B6: QThreadPrivate::start(void*) (qthread_unix.cpp:340)
> ==1218==by 0x4C3005E: mythread_wrapper (hg_intercepts.c:389)
> ==1218==by 0x9DAE0A3: start_thread (pthread_create.c:309)
> ==1218==by 0x869100C: clone (clone.S:111)
> ==1218==
> ==1218== This conflicts with a previous write of size 1 by thread #16
> ==1218== Locks held: none
> ==1218==at 0x7836399: ungrabMessageHandler() (qlogging.cpp:1549)
> ==1218==by 0x78364BC: qt_message_print(QtMsgType, QMessageLogContext
> const&, QString const&) (qlogging.cpp:1579)
> ==1218==by 0x783658A: qt_message_output(QtMsgType, QMessageLogContext
> const&, QString const&) (qlogging.cpp:1622)
> ==1218==by 0x798DC32: QDebug::~QDebug() (qdebug.cpp:150)
> ==1218==by 0x4F24EF6: CompletionThread::done() (kurlcompletion.cpp:232)
> ==1218==by 0x4F1ECCD: DirectoryListThread::run() (kurlcompletion.cpp:368)
> ==1218==by 0x784B0B6: QThreadPrivate::start(void*) (qthread_unix.cpp:340)
> ==1218==by 0x4C3005E: mythread_wrapper (hg_intercepts.c:389)
> ==1218== Address 0x1e1f86f0 is in a rw- anonymous segment
>
> Helgrind bug, or is clang silently ignoring thread_local?
Clang documentation (http://clang.llvm.org/cxx_status.html) says
thread_local support requires libc++abi 3.6+ or libsupc++ 4.8+.
Does your binary use any of those?
> --
> David Faure, fa...@kde.org, http://www.davidfaure.fr
> Working on KDE Frameworks 5
>
>
> --
> Transform Data into Opportunity.
> Accelerate data analysis in your applications with
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Re: [Valgrind-users] valgrind installation failed
It will be accessible, but you'll have to provide the full path to the binary, e.g. $ /path/to/valgrind/source/inst/bin/valgrind ./your_program If you want to just type `valgrind`, you'll need to either install it to /usr/local, or add /path/to/valgrind/source/inst/bin/ to your PATH: $ export PATH="$PATH:/path/to/valgrind/source/inst/bin/" HTH On Tue, Mar 15, 2016 at 12:30 PM, Alla _ <modelling.d...@gmail.com> wrote: > Alexander, > Thank you very much for your answer. > > One more question: > > if I have the Valgrind package stored within my local directory together > with usual documents and study programs, and if I manage to successfully > install Valgrind (I will follow your advice now), do I understand correctly > that > it will be accessible from the Terminal, i.e. it doesn't matter where the > original > package is stored? > > Thank you! > Best, > Alla > > On Tue, Mar 15, 2016 at 3:12 PM, Alexander Potapenko <gli...@google.com> > wrote: >> >> Looks like you're trying to install to /usr/local with insufficient >> privileges. >> You can either run `sudo make install` to install as root, or >> configure the build to put the binaries into a local directory: >> $ ./autogen.sh >> $ ./configure --prefix=`pwd`/inst >> $ make && make install >> >> On Tue, Mar 15, 2016 at 11:41 AM, Alla _ <modelling.d...@gmail.com> wrote: >> > Hello! >> > >> > I am a newbie, learning C programming. Have just tried to install >> > Valgrind, >> > following instructions in the README. Installation failed. My system: >> > Mac OS >> > X 10.7.5 >> > >> > Here are the steps I made: >> > >> > installed >> > >> > curl -OL http://ftpmirror.gnu.org/autoconf/autoconf-latest.tar.gz >> > tar -xzf autoconf-latest.tar.gz >> > cd autoconf-[x.xx] >> > ./configure && make && sudo make install >> > >> > curl -OL http://ftpmirror.gnu.org/automake/automake-1.15.tar.gz >> > tar -xzf automake-1.15.tar.gz >> > cd automake-1.15 >> > ./configure && make && sudo make install >> > >> > cd valgrind-3.11.0 >> > ./autogen.sh >> > ./configure >> > >> > make >> > >> > make install >> > >> > Here is the message I got in Terminal after make install command: >> > make install-recursive >> > Making install in include >> > make[3]: Nothing to be done for `install-exec-am'. >> > .././install-sh -c -d '/usr/local/include/valgrind' >> > mkdir: /usr/local/include/valgrind: Permission denied >> > make[3]: *** [install-nobase_pkgincludeHEADERS] Error 1 >> > make[2]: *** [install-am] Error 2 >> > make[1]: *** [install-recursive] Error 1 >> > make: *** [install] Error 2 >> > >> > >> > >> > Respectfully, >> > Alla >> > >> > >> > >> > -- >> > Transform Data into Opportunity. >> > Accelerate data analysis in your applications with >> > Intel Data Analytics Acceleration Library. >> > Click to learn more. >> > http://pubads.g.doubleclick.net/gampad/clk?id=278785231=/4140 >> > ___ >> > Valgrind-users mailing list >> > Valgrind-users@lists.sourceforge.net >> > https://lists.sourceforge.net/lists/listinfo/valgrind-users >> > >> >> >> >> -- >> Alexander Potapenko >> Software Engineer >> >> Google Germany GmbH >> Erika-Mann-Straße, 33 >> 80636 München >> >> Geschäftsführer: Matthew Scott Sucherman, Paul Terence Manicle >> Registergericht und -nummer: Hamburg, HRB 86891 >> Sitz der Gesellschaft: Hamburg > > > > > -- > Respectfully, > Alla > -- Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Straße, 33 80636 München Geschäftsführer: Matthew Scott Sucherman, Paul Terence Manicle Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg -- Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785231=/4140 ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] valgrind installation failed
Looks like you're trying to install to /usr/local with insufficient privileges. You can either run `sudo make install` to install as root, or configure the build to put the binaries into a local directory: $ ./autogen.sh $ ./configure --prefix=`pwd`/inst $ make && make install On Tue, Mar 15, 2016 at 11:41 AM, Alla _ <modelling.d...@gmail.com> wrote: > Hello! > > I am a newbie, learning C programming. Have just tried to install Valgrind, > following instructions in the README. Installation failed. My system: Mac OS > X 10.7.5 > > Here are the steps I made: > > installed > > curl -OL http://ftpmirror.gnu.org/autoconf/autoconf-latest.tar.gz > tar -xzf autoconf-latest.tar.gz > cd autoconf-[x.xx] > ./configure && make && sudo make install > > curl -OL http://ftpmirror.gnu.org/automake/automake-1.15.tar.gz > tar -xzf automake-1.15.tar.gz > cd automake-1.15 > ./configure && make && sudo make install > > cd valgrind-3.11.0 > ./autogen.sh > ./configure > > make > > make install > > Here is the message I got in Terminal after make install command: > make install-recursive > Making install in include > make[3]: Nothing to be done for `install-exec-am'. > .././install-sh -c -d '/usr/local/include/valgrind' > mkdir: /usr/local/include/valgrind: Permission denied > make[3]: *** [install-nobase_pkgincludeHEADERS] Error 1 > make[2]: *** [install-am] Error 2 > make[1]: *** [install-recursive] Error 1 > make: *** [install] Error 2 > > > > Respectfully, > Alla > > > -- > Transform Data into Opportunity. > Accelerate data analysis in your applications with > Intel Data Analytics Acceleration Library. > Click to learn more. > http://pubads.g.doubleclick.net/gampad/clk?id=278785231=/4140 > ___ > Valgrind-users mailing list > Valgrind-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/valgrind-users > -- Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Straße, 33 80636 München Geschäftsführer: Matthew Scott Sucherman, Paul Terence Manicle Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg -- Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785231=/4140 ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] Help Needed !
Apparently you're trying to use the cross-compiler targeting ARM as the host compiler. ./configure is attempting to compile a small program with that compiler and is unable to execute the resulting binary. You need to look at ./configure source or the --help output to find out how to supply different compilers for host and target. On Thu, Jul 2, 2015 at 2:56 PM, Pinkesh Pachchigar pinkk...@live.com wrote: Hello everyone , I am novice to valgrind tool . I want to configure valgrind for ARM Cortex-m4 . My host system is x86_64 GNU/Linux .. and cross-compile toolchain is arm-none-eabi . Anyone ? ./configure --target=arm-none-eabi --host=x86_64-linux CC=~/gcc/gcc-arm-none-eabi-4_9-2015q1/bin/arm-none-eabi-gcc configure: WARNING: if you wanted to set the --build type, don't use --host. If a cross compiler is detected then cross compile mode will be used checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for x86_64-linux-strip... no checking for strip... strip checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... no checking for mawk... mawk checking whether make sets $(MAKE)... yes checking whether to enable maintainer-specific portions of Makefiles... no checking whether ln -s works... yes checking for x86_64-linux-gcc... /home/pinkesh/gcc/gcc-arm-none-eabi-4_9-2015q1/bin/arm-none-eabi-gcc checking whether the C compiler works... no configure: error: in `/home/pinkesh/installs/valgrind-3.10.1': configure: error: C compiler cannot create executables See `config.log' for more details - Pinkesh -- Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users -- Alexander Potapenko Software Engineer Google Germany GmbH Dienerstraße 12 80331 München -- Don't Limit Your Business. Reach for the Cloud. GigeNET's Cloud Solutions provide you with the tools and support that you need to offload your IT needs and focus on growing your business. Configured For All Businesses. Start Your Cloud Today. https://www.gigenetcloud.com/ ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] memory barriers support
On Tue, Aug 19, 2014 at 5:59 PM, Milian Wolff m...@milianw.de wrote: On Tuesday 19 August 2014 14:23:26 Jan Včelák wrote: OK. Then it is likely that there is a bug in our software. snip I run the test case several times without Valgrind with address sanitizer. But I didn't hit the problem. If you think it's a race, then the address sanitizer won't find it, I guess. Rather, try the thread sanitizer. http://clang.llvm.org/docs/ThreadSanitizer.html Cheers ThreadSanitizer won't comprehend the fence instructions inserted by urcu. I believe even Helgrind won't, because these instructions do not imply any happens-before relation. -- ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] Need for help : to prevent valgrind from terminating due to SIGSEGV
#0 0x04009a34 in _vgr20210ZU_libcZdsoZa_memset (s=0x0, c=0, n=2215) at mc_replace_strmem.c:1007 This line clearly denotes that for some reason memset(0, 0, 2215) is being called. You can insert assert(first_parameter_of_memset) before that line in order to make sure it is (or is not) NULL. Most probably this is a bug in your code - in this case Valgrind can't fix it for you. Recovering from SIGSEGV is a tricky thing which is not what most people ever need. -- Alexander Potapenko Software Engineer Google Moscow -- Master Java SE, Java EE, Eclipse, Spring, Hibernate, JavaScript, jQuery and much more. Keep your Java skills current with LearnJavaNow - 200+ hours of step-by-step video tutorials by Java experts. SALE $49.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122612 ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] Using Valgrind on Android to detect deadlocks
On Fri, Jun 29, 2012 at 5:50 PM, Christoph Bartoschek bartosc...@or.uni-bonn.de wrote: Am 29.06.2012 15:46, schrieb Alexander Potapenko: This may be not that easy to guess which locks are taken when the deadlock has already occurred. However a Valgrind-like tool is really an overkill for deadlock detection: a small library that interposes pthread_mutex_* (or other locking primitives) and keeps track of the locking order is fairly enough. In a deadlock all threads wait on the same lock. It should be easy to find it. Unfortunately in general there may be any number of locks and any set of threads may wait for any of those locks. -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] Valgrind separate tools instalation
You may want to take a look at http://code.google.com/p/data-race-test/source/browse/trunk/tsan/mk-self-contained-valgrind.sh, which we're using for a similar task (although we do not have any size constraints). It creates a .sh file containing a blob with the archived binaries necessary to run a specific tool, but you can hack it to do whatever you want. On Fri, May 4, 2012 at 4:11 PM, SAPLACAN, SORIN (SORIN) sorin.sapla...@alcatel-lucent.com wrote: Hello, In our company we want to use Valgrind for memory leak using mostly Memcheck. Is there the possibility to choose what tool to install? I ask this because some test we make need Valgrind to be installed directly on the machine where the executables are and there is a space limit constraint. So we want to install only Memchek. But I couldn’t find something about this in the manual. Also the person which installed Valgrind on some machines didn’t figure if it is possible to install only one tool. Thank you! Best Regards, Sorin Saplacan Wireless - Methods Tools Solutions Team (MTS) Alcatel-Lucent Romania Timisoara, Str. Gh. Lazar Nr. 9, +40 256 303100 Office: Modatim B - Str. C. Brediceanu Nr. 10 B OnNet Phone: 2570 6144 e-mail: sorin.sapla...@alcatel-lucent.com -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users -- Alexander Potapenko Software Engineer Google Moscow -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] can't start any application on OS X 10.7.3
On Thu, Feb 9, 2012 at 5:00 PM, Eliot Moss m...@cs.umass.edu wrote:
I was wrong :-( ...
0x66 0x0F 0x3A 0xDF appears to be AESKEYGENASSIST.
Someone else will have to address that (if at all).
Sorry ... Eliot
There used to be a bug about incorrect declaration of AESKEYGENASSIST:
https://bugs.kde.org/show_bug.cgi?id=249991
Can you please try this code:
#include stdio.h
int main() {
unsigned int result = -1;
asm volatile(
mov $0x1, %%eax\n
cpuid\n
mov $0x0200, %%eax\n
and %%eax, %%ecx\n
mov %%ecx, %0\n: =r(result));
printf(%x\n, result);
return 0;
}
under Valgrind on your machine?
If it returns 0, it means that the code you're running is incorrectly
assuming AES support on the CPU (this is still a reason to fix
AESKEYGENASSIST)
Otherwise cpuid is broken under Valgrind.
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Re: [Valgrind-users] Valgrind on Android (Gingerbread)
Can you try: $ file `which valgrind` and $ head `which valgrind` ? On Fri, Nov 11, 2011 at 7:21 PM, Александар Миленковић darksidemetat...@gmail.com wrote: Unfortunately, the . is necessary for some reason. Here's a more complete log. # . /valgrind --leak-check=yes testapp .: Can't open /valgrind # ./valgrind --leak-check=yes testapp ./valgrind: not found # . valgrind --leak-check=yes testapp /system/bin/valgrind: 1: Syntax error: word unexpected (expecting )) # valgrind --leak-check=yes ./system/bin/testapp valgrind: not found Thanks for your time Phillipe. Aleksandar -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users -- Alexander Potapenko Software Engineer Google Moscow -- RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] Running Valgrind for ARMv7 on Nvidia Tegraboard
Are you building Valgrind natively or using a cross-compiler? Have you tried the packaged Valgrind build for your OS (if any)? On Tue, Oct 26, 2010 at 10:08 AM, Sergey Grekhov grek...@yandex.ru wrote: Hello to all! I have a trouble running valgrind on Nvidia Tegraboard (ARM-based embedded system). Building valgrind goes fine, without any issues. But when I try to execute valgrind on board I get the following: #/inperfa/valgrind/bin/valgrind --help In other words I get no information about why it does not execute properly. I tried to debug valgrind with gdb and got the following: (gdb) target remote 10.52.82.8:6000 Remote debugging using 10.52.82.8:6000 0x47c0 in ?? () (gdb) bt #0 0x47c0 in ?? () Cannot access memory at address 0x0 #1 0x in ?? () (gdb) c Continuing. Program received signal SIGTRAP, Trace/breakpoint trap. 0x2802c624 in ?? () (gdb) bt #0 0x2802c624 in ?? () Cannot access memory at address 0x0 #1 0x in ?? () (gdb) #0 0x2802c624 in ?? () #1 0x in ?? () (gdb) q uname output: #uname -a Linux (none) 2.6.29-arm2 #1 SMP PREEMPT Thu Jun 3 17:32:04 MSD 2010 armv7l unknown Does anyone tried to run valgrind on this board? Or maybe arm-part developers can help to fix troubles? Thank you in advance. kind regards, Sergey Grekhov. -- -- Kind regards, Sergey Grekhov. -- Nokia and ATT present the 2010 Calling All Innovators-North America contest Create new apps games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users -- Alexander Potapenko Software Engineer Google Moscow -- Nokia and ATT present the 2010 Calling All Innovators-North America contest Create new apps games for the Nokia N8 for consumers in U.S. and Canada $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store http://p.sf.net/sfu/nokia-dev2dev ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] building for arm
You can try to fix the following lines in configure.in:
=
armv7*)
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX=arm
;;
*)
=
s/armv7/arm
, but you should make sure that your compiler supports the ARMv7
instruction set.
On Thu, Sep 23, 2010 at 9:08 PM, Baurzhan Ismagulov i...@radix50.net wrote:
Hello,
I've checked out svn://svn.valgrind.org/valgrind/trunk and try to build
valgrind for arm-linux-gnu. configure fails with the following error
messages:
checking for a supported CPU... no (arm)
configure: error: Unsupported host architecture. Sorry
I've tried both cross-compiling from i386 and native build on arm.
There are several similar questions in the archive, but I couldn't find
working answers for them.
How should I build valgrind for arm-linux?
Thanks in advance,
--
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Re: [Valgrind-users] [x64+libvlc] unhandled instruction bytes: 0xF 0xF 0xC0 0x9E 0xF 0xE
This is the 3DNow! pfadd instruction. Looks like Valgrind doesn't currently support 3DNow!, but the cpuid implementation claims it does, so your code tries to execute it. Julian, is it possible to disable all unsupported CPU extensions? A somewhat related bug report is https://bugs.kde.org/show_bug.cgi?id=249991 Alex On Wed, Sep 15, 2010 at 1:47 PM, Yuri T. br0adcast@gmail.com wrote: Hi all, I have this error on Ubuntu x64 10.04.1 with valgrind from svn. uname -a Linux br0ub1 2.6.32-24-server #42-Ubuntu SMP Fri Aug 20 15:38:55 UTC 2010 x86_64 GNU/Linux vex amd64-IR: unhandled instruction bytes: 0xF 0xF 0xC0 0x9E 0xF 0xE ==15122== Process terminating with default action of signal 4 (SIGILL) ==15122== Illegal opcode at address 0x7616DF5 ==15122== at 0x7616DF5: ??? (in /usr/lib/libvlccore.so.4.0.0) ==15122== by 0x75A0B5C: libvlc_InternalCreate (in /usr/lib/libvlccore.so.4.0.0) ==15122== by 0x73706C7: libvlc_new (in /usr/lib/libvlc.so.5.1.0) ==15122== by 0x464761: VideoWidget::VideoWidget(QWidget*) (VideoWidget.cpp:94) ==15122== by 0x45FF98: Ui_MainWindow::setupUi(QWidget*) (ui_MainWindow.h:418) ==15122== by 0x45598A: MainWindow::MainWindow() (MainWindow.cpp:46) ==15122== by 0x49165A: BootStrapper::BootStrapper(QWidget*) (BootStrapper.cpp:22) ==15122== by 0x45207D: main (main.cpp:51) I hope to help in solving this problem. Regards Yuri T -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users -- Alexander Potapenko Software Engineer Google Moscow -- Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] Running Valgrind on ARM?
Could you please open a bug with the error message you get running your program? This is necessary to figure out which instruction is not recognized by Valgrind. On Sat, Jun 5, 2010 at 11:33 PM, JoSH Lehan krel...@gmail.com wrote: Hello. A few weeks ago, I asked a question about illegal instruction encountered while running Valgrind on ARM, and got no response. Backing up a little, I wonder if I'm running Valgrind correctly. What is the preferred way to run Valgrind on ARM? There's a number of patches floating around, maybe I picked up the wrong one, or got them out of order. If this is a FAQ, sorry, please point me in the right direction. Thanks! Josh -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users -- Alexander Potapenko Software Engineer Google Moscow -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] valgrind for ARM/Linux
AFAIK Valgrind currently runs on ARMv7, but supports only ARMv5 instruction set (plus several v6 and v7 instructions). On Tue, Apr 20, 2010 at 6:54 AM, raja gobi raja.g...@yahoo.com wrote: Hi all, I saw that valgrind is now available for ARM/Linux in trunk which is great. Read on the mozilla developers page that ARMv5 instruction set is supported https://developer.mozilla.org/en/Debugging_Mozilla_with_Valgrind Is there support for ARMv5 or is that a typo? I went and checked out code from trunk and tried building it. In configure file, there is only support for armv7* As I wanted build for ARMv5, I hacked that line to just check for arm* and I could get valgrind to compile. But, when I tried to run it on an ARMv5, I got a SIGILL. Wanted to check if anybody has run it on an ARMv5 successfully. If it is not supported, is there any plans to do it? Thank you very much, -raja. -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users -- Alexander Potapenko Software Engineer Google Moscow -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] How to debug segfault that only occurrs when running in valgrind with callgrind?
Maybe --trace-syscall=yes may help to figure out the problem? HTH, ALex On Thu, Apr 15, 2010 at 3:45 PM, Milian Wolff m...@milianw.de wrote: Hey all! When I try to profile the whole startup of KDevelop using callgrind, I and at least one of the other developers, get a reproducible segfault. This does not occur in memcheck or massif, so I fear it shows a bug in callgrind itself. How does one debug that? gdb - valgrind - app? That segfaults even earlier and gives a totally useless backtrace without any debug info... Hints? -- Milian Wolff m...@milianw.de http://milianw.de -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users -- Alexander Potapenko Software Engineer Google Moscow -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] Problem with getting lie numbers of surce file
Unless your program is in a directory specified in your $PATH, you are valgrinding the /bin/test utility. The right command to invoke Valgrind is: valgrind --tool=memcheck ./test On Tue, Apr 13, 2010 at 11:22 PM, ajit gunge peacepan...@yahoo.com wrote: Hi All, I am trying to run the sample program on RHEL given at http://www.valgrind.org/docs/manual/mc-manual.html under section 4.2.2. now this should give me error mentioned in the section as to surce file with line numbers but when I am running the same program I dont get the line number is source file. This is the output [r...@kalpana tests]# valgrind --tool=memcheck test ==30057== Memcheck, a memory error detector ==30057== Copyright (C) 2002-2009, and GNU GPL'd, by Julian Seward et al. ==30057== Using Valgrind-3.5.0 and LibVEX; rerun with -h for copyright info ==30057== Command: test ==30057== ==30057== ==30057== HEAP SUMMARY: ==30057== in use at exit: 0 bytes in 0 blocks ==30057== total heap usage: 2 allocs, 2 frees, 36 bytes allocated ==30057== ==30057== All heap blocks were freed -- no leaks are possible ==30057== ==30057== For counts of detected and suppressed errors, rerun with: -v ==30057== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 13 from 8) Please let me know why am I not getting the error along with the line numbers. Regards, Ajit -- Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users -- Alexander Potapenko Software Engineer Google Moscow -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] 3.5.0, macosx snow leopard, stdin
Anna, are you really running Snow Leopard (10.6)? If yes, then Valgrind may not work out of the box at all. Please refer to https://bugs.kde.org/show_bug.cgi?id=205241 for more information. Alex Alex, thanks for your response. There must be something wrong with my setup, although I didn't do anything special during installation of snow leopard. -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] 3.5.0, macosx snow leopard, stdin
I suppose there isn't. Your experience of testing Greg Parker's patch may be helpful, so if you happen to find any problems with it, please update the bug issue. On Tue, Apr 13, 2010 at 2:18 PM, Anna Ceguerra annac...@yahoo.com.au wrote: Hi Alex, Yes I'm running 10.6.3. Is there any way to install the patch without building it from scratch? Thanks, Anna. Anna, are you really running Snow Leopard (10.6)? If yes, then Valgrind may not work out of the box at all. Please refer to https://bugs.kde.org/show_bug.cgi?id=205241 for more information. Alex Alex, thanks for your response. There must be something wrong with my setup, although I didn't do anything special during installation of snow leopard. -- Alexander Potapenko Software Engineer Google Moscow -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] Is it possible to suppress ??? (in /lib/ld-2.10.1.so) in a valgrind output?
You should use Memcheck:Cond rather than Memceck:ValueX.
Try looking at valgrind --gen-suppressions=all ./test
On Sun, Jan 31, 2010 at 7:32 PM, jody jody@gmail.com wrote:
Hi
I am using g++ (Gentoo 4.3.4 p1.0, pie-10.1.5) 4.3.4
and valgrind-3.5.0
When i compile this trivial program test.cpp:
int main(int iArgC, char *apArgV[]) {
return 0;
}
and run it under valgrind:
valgrind ./test
I get lots of error messages of the form:
==6443== Conditional jump or move depends on uninitialised value(s)
==6443== at 0x400A59E: ??? (in /lib/ld-2.10.1.so)
==6443== by 0x400335B: ??? (in /lib/ld-2.10.1.so)
==6443== by 0x4014A19: ??? (in /lib/ld-2.10.1.so)
==6443== by 0x4000D1F: ??? (in /lib/ld-2.10.1.so)
==6443== by 0x40008F6: ??? (in /lib/ld-2.10.1.so)
==6443==
all of them at other locations.
So i wrote a suppression file test.supp:
{
ld-2.10.1.so
Memcheck:Value1
obj:/lib/ld-2.10.1.so
}
{
ld-2.10.1.so
Memcheck:Value2
obj:/lib/ld-2.10.1.so
}
{
ld-2.10.1.so
Memcheck:Value4
obj:/lib/ld-2.10.1.so
}
{
ld-2.10.1.so
Memcheck:Value8
obj:/lib/ld-2.10.1.so
}
{
ld-2.10.1.so
Memcheck:Value16
obj:/lib/ld-2.10.1.so
}
But when i use it,
valgrind -v --suppressions=./test.supp ./test
the same errors are being displayed.
The same happens when i duplicate the line obj:/lib/ld-2.10.1.so
Did i make an error in my suppression file?
Thank You
Jody
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Re: [Valgrind-users] Compilation of valgrind 3.5.0
I can't find the passage that recommends to compile Valgrind with -O0 In fact it's a bad idea because -O0 will lead to a performance loss. The Quick Start Guide recommends to compile your own program with -g and -O0. On Wed, Sep 9, 2009 at 6:31 PM, Hoof, B. vanb.v.h...@tue.nl wrote: Dear all, Because I am a new user, this is hopefully an easy question. In the Valgrind quick start guide, it says that it is wise to compile valgrind with –g and –O0. However, what should I do to accomplish this? It does not appear to be possible to give these options to my “make” command directly and if I should insert them somewhere in the Makefile created by running “./configure” I wouldn’t know where to do it. If anyone would please help me, I would be most grateful. Kind regards, Bram van Hoof -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users -- Alexander Potapenko Software Engineer Google Moscow -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] Support of XSI semaphores in Helgrind?
As far as I can understand from the sources, neither Helgrind nor DRD support those semaphores. You can either try to intercept them manually (see trunk/drd/drd_pthread_intercepts.c for an example), or file a feature request for Bart Van Assche. On Wed, Sep 2, 2009 at 5:57 PM, Freimann, Mariomario.freim...@siemens.com wrote: Dear list members, I have a multitheaded program which I want to analyse with recent Helgrind 3.5 for multithreading errors (e.g. race conditions) on RedHat Enterprise Linux 3 with gcc 3.2.3 (thread model POSIX). The application uses XSI semaphores (http://www.opengroup.org/onlinepubs/009695399/functions/xsh_chap02_07.html#tag_02_07) with functions like semget, semop and semctl. The threading itself is done via POSIX. The synchronisation between threads to access shared data is done via semget, etc. Is Helgrind able to analyze this program correctly? Or do I have to switch to POSIX semaphores, use DRD or something else? With kind regards, Mario Freimann -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users -- Alexander Potapenko Software Engineer Google Moscow -- Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july ___ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
Re: [Valgrind-users] Strange helgrind dataraces reports involving std::string
FYI: http://etbe.coker.com.au/2009/06/22/valgrindhelgrind-and-stl-string/
There's also a link to a related bug on gcc.gnu.org there:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40518
In short, some of the reports may be connected to accessing the shared
_Rep object when working with empty strings.
On Thu, Jul 30, 2009 at 3:54 PM, Pavel Shevaevpacha.shev...@gmail.com wrote:
Sorry folks, I'm replying to myself. Here are the suppressions I
created in order to avoid datarace error messages because they made it
almost impossible to discover actual dataraces in my application which
caused seg.faults:
{
helgrind std::string 1
Helgrind:Race
fun:_ZNSs4_*_M_set_*sharable*
}
{
helgrind std::string 2
Helgrind:Race
fun:_ZNKSs4_Rep12_M_is_leakedEv*
}
{
helgrind std::string 3
Helgrind:Race
fun:_ZNKSs4sizeEv*
}
{
helgrind std::string 4
Helgrind:Race
fun:_ZNSs4_Rep8_M_cloneERKSaIcEj*
}
{
helgrind std::string 5
Helgrind:Race
fun:_ZNKSs4_Rep12_M_is_sharedEv*
}
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