Re: [boost] [chrono] Valgrind complains

Subject: Re: [boost] [chrono] Valgrind complains
From: Roland Bock (rbock_at_[hidden])
Date: 2010-06-22 14:23:55

vicente.botet wrote:
> ----- Original Message ----- 
> From: "Roland Bock" <rbock_at_[hidden]>
> To: <boost_at_[hidden]>
> Sent: Tuesday, June 22, 2010 5:34 PM
> Subject: Re: [boost] [chrono] Valgrind complains
>
>
>   
>> Stewart, Robert wrote:
>>     
>>> vicente.botet wrote:
>>>   
>>>       
>>>> From: "Roland Bock" <rbock_at_[hidden]>
>>>>     
>>>>         
>>>>> Valgrind complains about
>>>>>
>>>>> Conditional jump or move depends on uninitialised value(s)
>>>>>
>>>>>
>>>>> several times for the following line:
>>>>>
>>>>> { boost::chrono::stopclock<> stopclock(std::cerr); }
>>>>>       
>>>>>           
>
> Could you check if Valgrind complains with
>
> { boost::chrono::stopclock<> stopclock; }
> or
> { boost::chrono::stopclock<> stopclock(BOOST_CURRENT_FUNCTION); }
> or
> { boost::system::error_code ec; 
> boost::chrono::stopclock<> stopclock(std::cerr, ec); }
>
> Thanks, 
> Vicente
>
>
>   
Hi,

attached are

    * the source file containing the original test plus the three
      additional tests suggested by you
    * a file containing compiler warnings
    * the valgrind output (the latter two tests do not produce warnings,
      if I read it correctly)

The program was compiled using the following compiler flags (gcc=4.2.4 
on Ubuntu 8.04, 64bit):

-Wall -Wreorder -Wnon-virtual-dtor -Wno-non-template-friend 
-Woverloaded-virtual -Wsign-promo -Wextra -fvisibility=hidden 
-D_GNU_SOURCE -O0 -g

Regards,

Roland


Scanning dependencies of target Chrono
[ 66%] Building CXX object src/CMakeFiles/Chrono.dir/Chrono.o
/home/rbock/metafeed_DEBUG/binaries/boost/1.43/include/boost/chrono/scoped_suspend.hpp: In instantiation of ‘boost::chrono::scoped_suspend<Clock>::scoped_suspend(boost::system::error_code&) [with Clock = boost::chrono::process_cpu_clock]’:
/home/rbock/metafeed_DEBUG/binaries/boost/1.43/include/boost/chrono/stopwatch_reporter.hpp:148:   instantiated from ‘void boost::chrono::basic_stopwatch_reporter<Stopwatch, Formatter>::report(boost::system::error_code&) [with Stopwatch = boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, Formatter = boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> >]’
/home/rbock/metafeed_DEBUG/binaries/boost/1.43/include/boost/chrono/stopwatch_reporter.hpp:120:   instantiated from ‘boost::chrono::basic_stopwatch_reporter<Stopwatch, Formatter>::~basic_stopwatch_reporter() [with Stopwatch = boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, Formatter = boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> >]’
/home/rbock/metafeed_DEBUG/binaries/boost/1.43/include/boost/chrono/stopclock.hpp:47:   instantiated from here
/home/rbock/metafeed_DEBUG/binaries/boost/1.43/include/boost/chrono/scoped_suspend.hpp:25: warning: unused parameter ‘ec’
Linking CXX executable Chrono
[100%] Built target Chrono


==7565== Memcheck, a memory error detector.
==7565== Copyright (C) 2002-2007, and GNU GPL'd, by Julian Seward et al.
==7565== Using LibVEX rev 1804, a library for dynamic binary translation.
==7565== Copyright (C) 2004-2007, and GNU GPL'd, by OpenWorks LLP.
==7565== Using valgrind-3.3.0-Debian, a dynamic binary instrumentation framework.
==7565== Copyright (C) 2000-2007, and GNU GPL'd, by Julian Seward et al.
==7565== For more details, rerun with: -v
==7565== 
==7565== Conditional jump or move depends on uninitialised value(s)
==7565==    at 0x503550D: boost::chrono::process_clock::now(boost::chrono::process_clock::durations&, boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x50375EF: boost::chrono::process_cpu_clock::now(boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x4029B6: boost::chrono::stopwatch<boost::chrono::process_cpu_clock>::elapsed(boost::system::error_code&) (stopwatch.hpp:152)
==7565==    by 0x402B23: void boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> >::show_time<boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > > >(boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >&, char const*, int, std::ostream&, boost::system::error_code&) (time_formatter.hpp:74)
==7565==    by 0x403272: boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::report(boost::system::error_code&) (stopwatch_reporter.hpp:157)
==7565==    by 0x40331A: boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::~basic_stopwatch_reporter() (stopwatch_reporter.hpp:120)
==7565==    by 0x4033AA: boost::chrono::basic_stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::~basic_stopclock() (stopclock.hpp:47)
==7565==    by 0x4033C2: boost::chrono::stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::~stopclock() (stopclock.hpp:116)
==7565==    by 0x401841: main (Chrono.cpp:8)
==7565== 
==7565== Conditional jump or move depends on uninitialised value(s)
==7565==    at 0x5035527: boost::chrono::process_clock::now(boost::chrono::process_clock::durations&, boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x50375EF: boost::chrono::process_cpu_clock::now(boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x4029B6: boost::chrono::stopwatch<boost::chrono::process_cpu_clock>::elapsed(boost::system::error_code&) (stopwatch.hpp:152)
==7565==    by 0x402B23: void boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> >::show_time<boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > > >(boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >&, char const*, int, std::ostream&, boost::system::error_code&) (time_formatter.hpp:74)
==7565==    by 0x403272: boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::report(boost::system::error_code&) (stopwatch_reporter.hpp:157)
==7565==    by 0x40331A: boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::~basic_stopwatch_reporter() (stopwatch_reporter.hpp:120)
==7565==    by 0x4033AA: boost::chrono::basic_stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::~basic_stopclock() (stopclock.hpp:47)
==7565==    by 0x4033C2: boost::chrono::stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::~stopclock() (stopclock.hpp:116)
==7565==    by 0x401841: main (Chrono.cpp:8)
==7565== 
==7565== Conditional jump or move depends on uninitialised value(s)
==7565==    at 0x5035541: boost::chrono::process_clock::now(boost::chrono::process_clock::durations&, boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x50375EF: boost::chrono::process_cpu_clock::now(boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x4029B6: boost::chrono::stopwatch<boost::chrono::process_cpu_clock>::elapsed(boost::system::error_code&) (stopwatch.hpp:152)
==7565==    by 0x402B23: void boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> >::show_time<boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > > >(boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >&, char const*, int, std::ostream&, boost::system::error_code&) (time_formatter.hpp:74)
==7565==    by 0x403272: boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::report(boost::system::error_code&) (stopwatch_reporter.hpp:157)
==7565==    by 0x40331A: boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::~basic_stopwatch_reporter() (stopwatch_reporter.hpp:120)
==7565==    by 0x4033AA: boost::chrono::basic_stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::~basic_stopclock() (stopclock.hpp:47)
==7565==    by 0x4033C2: boost::chrono::stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::~stopclock() (stopclock.hpp:116)
==7565==    by 0x401841: main (Chrono.cpp:8)
real 0.030s, cpu 0.020s (66.7%), user 0.020s, system 0.000s
==7565== 
==7565== Conditional jump or move depends on uninitialised value(s)
==7565==    at 0x503550D: boost::chrono::process_clock::now(boost::chrono::process_clock::durations&, boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x50375EF: boost::chrono::process_cpu_clock::now(boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x402684: boost::chrono::stopwatch<boost::chrono::process_cpu_clock>::start(boost::system::error_code&) (stopwatch.hpp:80)
==7565==    by 0x402748: boost::chrono::stopwatch<boost::chrono::process_cpu_clock>::stopwatch(boost::system::error_code&) (stopwatch.hpp:70)
==7565==    by 0x4027B0: boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::basic_stopwatch_reporter(boost::system::error_code&) (stopwatch_reporter.hpp:79)
==7565==    by 0x402856: boost::chrono::basic_stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::basic_stopclock(boost::system::error_code&) (stopclock.hpp:58)
==7565==    by 0x402876: boost::chrono::stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::stopclock(boost::system::error_code&) (stopclock.hpp:127)
==7565==    by 0x401852: main (Chrono.cpp:10)
==7565== 
==7565== Conditional jump or move depends on uninitialised value(s)
==7565==    at 0x5035527: boost::chrono::process_clock::now(boost::chrono::process_clock::durations&, boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x50375EF: boost::chrono::process_cpu_clock::now(boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x402684: boost::chrono::stopwatch<boost::chrono::process_cpu_clock>::start(boost::system::error_code&) (stopwatch.hpp:80)
==7565==    by 0x402748: boost::chrono::stopwatch<boost::chrono::process_cpu_clock>::stopwatch(boost::system::error_code&) (stopwatch.hpp:70)
==7565==    by 0x4027B0: boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::basic_stopwatch_reporter(boost::system::error_code&) (stopwatch_reporter.hpp:79)
==7565==    by 0x402856: boost::chrono::basic_stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::basic_stopclock(boost::system::error_code&) (stopclock.hpp:58)
==7565==    by 0x402876: boost::chrono::stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::stopclock(boost::system::error_code&) (stopclock.hpp:127)
==7565==    by 0x401852: main (Chrono.cpp:10)
==7565== 
==7565== Conditional jump or move depends on uninitialised value(s)
==7565==    at 0x5035541: boost::chrono::process_clock::now(boost::chrono::process_clock::durations&, boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x50375EF: boost::chrono::process_cpu_clock::now(boost::system::error_code&) (in /home/rbock/metafeed/sources/trunk/binaries/boost/1.43/lib/libboost_chrono.so.1.43.0)
==7565==    by 0x402684: boost::chrono::stopwatch<boost::chrono::process_cpu_clock>::start(boost::system::error_code&) (stopwatch.hpp:80)
==7565==    by 0x402748: boost::chrono::stopwatch<boost::chrono::process_cpu_clock>::stopwatch(boost::system::error_code&) (stopwatch.hpp:70)
==7565==    by 0x4027B0: boost::chrono::basic_stopwatch_reporter<boost::chrono::stopwatch<boost::chrono::process_cpu_clock>, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::basic_stopwatch_reporter(boost::system::error_code&) (stopwatch_reporter.hpp:79)
==7565==    by 0x402856: boost::chrono::basic_stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::basic_stopclock(boost::system::error_code&) (stopclock.hpp:58)
==7565==    by 0x402876: boost::chrono::stopclock<boost::chrono::process_cpu_clock, boost::chrono::basic_time_formatter<char, std::char_traits<char>, std::allocator<char> > >::stopclock(boost::system::error_code&) (stopclock.hpp:127)
==7565==    by 0x401852: main (Chrono.cpp:10)
real 0.010s, cpu 0.000s (0.0%), user 0.000s, system 0.000s
int main()real 0.000s, cpu 0.000s (0.0%), user 0.000s, system 0.000s
==7565== 
==7565== ERROR SUMMARY: 21 errors from 6 contexts (suppressed: 8 from 1)
==7565== malloc/free: in use at exit: 0 bytes in 0 blocks.
==7565== malloc/free: 4 allocs, 4 frees, 248 bytes allocated.
==7565== For counts of detected errors, rerun with: -v
==7565== All heap blocks were freed -- no leaks are possible.