[EDIT]: It is now working! See this commit for how we did it.
While we were working on our homework, I decided to try writing a test program that would simply. A lot of the code is just copied from /opt/EmotivResearch_2.0.0.20/doc/examples_Qt/example1/main.cpp. The Makefile for the program was written from scratch. Here were the instructions I ran to compile it.
make clean
env LD_LIBRARY_PATH=/opt/EmotivResearch_2.0.0.20/lib make
env LD_LIBRARY_PATH=/opt/EmotivResearch_2.0.0.20/lib ./test-bin
Running the second of the former commands produces the following output:
g++ -g -I/opt/EmotivResearch_2.0.0.20/include -L/opt/EmotivResearch_2.0.0.20/lib -o test-bin main.c -L/opt/intel/composer_xe_2015.0.090/compiler/lib/intel64 -L/opt/intel/composer_xe_2015.0.090/mkl/lib/intel64 -lcryptopp_64 -ludev -lmkl_rt -liomp5 -lboost_serialization -lboost_system -lboost_regex -lboost_filesystem -lpng12 -lQtCore -lQtGui -ledk_utils_linux -ledk
/usr/bin/ld: warning: libboost_serialization.so.1.51.0, needed by /opt/EmotivResearch_2.0.0.20/lib/libedk.so, may conflict with libboost_serialization.so.1.56.0
/usr/bin/ld: warning: libboost_system.so.1.51.0, needed by /opt/EmotivResearch_2.0.0.20/lib/libedk.so, may conflict with libboost_system.so.1.56.0
/usr/bin/ld: warning: libboost_regex.so.1.51.0, needed by /opt/EmotivResearch_2.0.0.20/lib/libedk.so, may conflict with libboost_regex.so.1.56.0
/usr/bin/ld: warning: libboost_filesystem.so.1.51.0, needed by /opt/EmotivResearch_2.0.0.20/lib/libedk.so, may conflict with libboost_filesystem.so.1.56.0
Running the second of the former commands with -lboost_md5 added to the list of link flags produces a peculiar error even though the *.so is in one of the -L'd directories
g++ -g -I/opt/EmotivResearch_2.0.0.20/include -L/opt/EmotivResearch_2.0.0.20/lib -o test-bin main.c -L/opt/intel/composer_xe_2015.0.090/compiler/lib/intel64 -L/opt/intel/composer_xe_2015.0.090/mkl/lib/intel64 -lcryptopp_64 -ludev -lmkl_rt -liomp5 -lboost_serialization -lboost_system -lboost_md5 -lboost_regex -lboost_filesystem -lpng12 -lQtCore -lQtGui -ledk_utils_linux -ledk
/usr/bin/ld: cannot find -lboost_md5
collect2: error: ld returned 1 exit status
Makefile:7: recipe for target 'test-bin' failed
make: *** [test-bin] Error 1
However, ls -l /opt/EmotivResearch_2.0.0.20/lib shows the following output:
total 9.4M
104K -rwxrwxr-x 1 500 500 102K Oct 22 12:44 libboost_filesystem.so.1.51.0*
12K -rwxrwxr-x 1 500 500 11K Oct 22 12:44 libboost_md5.so.1.51.0*
952K -rwxrwxr-x 1 500 500 950K Oct 22 12:44 libboost_regex.so.1.51.0*
464K -rwxrwxr-x 1 500 500 461K Oct 22 12:44 libboost_serialization.so.1.51.0*
12K -rwxrwxr-x 1 500 500 12K Oct 22 12:44 libboost_system.so.1.51.0*
0 lrwxrwxrwx 1 500 500 18 Jul 15 2013 libcryptopp_64.so -> libcryptopp.so.1.0*
0 lrwxrwxrwx 1 500 500 17 Jul 15 2013 libcryptopp.so.1 -> libcryptopp_64.so*
4.8M -rwxr-xr-x 1 500 500 4.8M Oct 22 12:44 libcryptopp.so.1.0*
0 lrwxrwxrwx 1 500 500 15 Jul 15 2013 libedk.so -> libedk.so.1.0.0*
0 lrwxrwxrwx 1 500 500 15 Jul 15 2013 libedk.so.1 -> libedk.so.1.0.0*
0 lrwxrwxrwx 1 500 500 15 Jul 15 2013 libedk.so.1.0 -> libedk.so.1.0.0*
3.1M -rwxrwxr-x 1 500 500 3.1M Oct 22 12:44 libedk.so.1.0.0*
4.0K -rwxrwxrwx 1 500 500 3.8K Oct 22 12:44 libedk_utils_linux.so*
0 lrwxrwxrwx 1 root root 19 Oct 22 12:44 libqwt.so.5 -> /usr/lib/libqwt5.so*
0 lrwxrwxrwx 1 root root 15 Oct 22 12:44 libudev.so.0 -> /lib/libudev.so*
0 lrwxrwxrwx 1 root root 12 Oct 18 14:27 libudev.so.1 -> libudev.so.0*
I initially shrugged off the output warnings that ld gave me until I tried connecting the test program to the EmoComposer. It crashed because it couldn't find the reference to libboost_md5
GNU gdb (GDB) 7.8
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Type "show configuration" for configuration details.
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from env...(no debugging symbols found)...done.
(gdb) run LD_LIBRARY_PATH=/opt/EmotivResearch_2.0.0.20/lib ./test-bin
Starting program: /usr/bin/env LD_LIBRARY_PATH=/opt/EmotivResearch_2.0.0.20/lib ./test-bin
Got object file from memory but can't read symbols: File truncated.
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
process 7092 is executing new program: /home/shadowkyogre/School/csce499a/test-proggy/test-bin
warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
warning: the debug information found in "/opt/intel/composer_xe_2015.0.090/compiler/lib/intel64/libiomp5.dbg" does not match "/opt/intel/composer_xe_2015.0.090/compiler/lib/intel64/libiomp5.so" (CRC mismatch).
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
===================================================================
Example to show how to log the EmoState from EmoEngine/EmoComposer.
===================================================================
Press '1' to start and connect to the EmoEngine
Press '2' to connect to the EmoComposer
>> 2
[New Thread 0x7fffed887700 (LWP 7097)]
Start receiving EmoState! Press any key to stop logging...
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffed887700 (LWP 7097)]
0x00007ffff4a214c7 in void EmoEventPackage::serialize<boost::archive::text_iarchive>(boost::archive::text_iarchive&, unsigned int) () from /opt/EmotivResearch_2.0.0.20/lib/libedk.so.1
(gdb) bt
#0 0x00007ffff4a214c7 in void EmoEventPackage::serialize<boost::archive::text_iarchive>(boost::archive::text_iarchive&, unsigned int) () from /opt/EmotivResearch_2.0.0.20/lib/libedk.so.1
#1 0x00007ffff6a221d5 in boost::archive::detail::basic_iarchive::load_object(void*, boost::archive::detail::basic_iserializer const&) () from /usr/lib/libboost_serialization.so.1.56.0
#2 0x00007ffff4a1ffd9 in void SerializedObjectConnection::handle_read_data<EmoEventPackage, boost::_bi::bind_t<void, boost::_mfi::mf1<void, RemoteEmoEventClient, boost::system::error_code const&>, boost::_bi::list2<boost::_bi::value<RemoteEmoEventClient*>, boost::arg<1> (*)()> > >(boost::system::error_code const&, EmoEventPackage&, boost::tuples::tuple<boost::_bi::bind_t<void, boost::_mfi::mf1<void, RemoteEmoEventClient, boost::system::error_code const&>, boost::_bi::list2<boost::_bi::value<RemoteEmoEventClient*>, boost::arg<1> (*)()> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>) ()
from /opt/EmotivResearch_2.0.0.20/lib/libedk.so.1
#3 0x00007ffff4a297c9 in boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, boost::_bi::bind_t<void, boost::_mfi::mf3<void, SerializedObjectConnection, boost::system::error_code const&, EmoEventPackage&, boost::tuples::tuple<boost::_bi::bind_t<void, boost::_mfi::mf1<void, RemoteEmoEventClient, boost::system::error_code const&>, boost::_bi::list2<boost::_bi::value<RemoteEmoEventClient*>, boost::arg<1> (*)()> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >, boost::_bi::list4<boost::_bi::value<SerializedObjectConnection*>, boost::arg<1> (*)(), boost::reference_wrapper<EmoEventPackage>, boost::_bi::value<boost::tuples::tuple<boost::_bi::bind_t<void, boost::_mfi::mf1<void, RemoteEmoEventClient, boost::system::error_code const&>, boost::_bi::list2<boost::_bi::value<RemoteEmoEventClient*>, boost::arg<1> (*)()> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > > > >::operator()(boost::system::error_code const&, unsigned long, int) () from /opt/EmotivResearch_2.0.0.20/lib/libedk.so.1
#4 0x00007ffff4a29e02 in boost::asio::detail::reactive_socket_recv_op<boost::asio::mutable_buffers_1, boost::asio::detail::read_op<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfer_all_t, boost::_bi::bind_t<void, boost::_mfi::mf3<void, SerializedObjectConnection, boost::system::error_code const&, EmoEventPackage&, boost::tuples::tuple<boost::_bi::bind_t<void, boost::_mfi::mf1<void, RemoteEmoEventClient, boost::system::error_code const&>, boost::_bi::list2<boost::_bi::value<RemoteEmoEventClient*>, boost::arg<1> (*)()> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >, boost::_bi::list4<boost::_bi::value<SerializedObjectConnection*>, boost::arg<1> (*)(), boost::reference_wrapper<EmoEventPackage>, boost::_bi::value<boost::tuples::tuple<boost::_bi::bind_t<void, boost::_mfi::mf1<void, RemoteEmoEventClient, boost::system::error_code const&>, boost::_bi::list2<boost::_bi::value<RemoteEmoEventClient*>, boost::arg<1> (*)()> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > > > > >::do_complete(boost::asio::detail::task_io_service*, boost::asio::detail::task_io_service_operation*, boost::system::error_code const&, unsigned long) () from /opt/EmotivResearch_2.0.0.20/lib/libedk.so.1
#5 0x00007ffff4a2ac3c in boost::asio::detail::task_io_service::run(boost::system::error_code&) () from /opt/EmotivResearch_2.0.0.20/lib/libedk.so.1
#6 0x00007ffff4a18094 in RemoteEmoEventClient::run() () from /opt/EmotivResearch_2.0.0.20/lib/libedk.so.1
#7 0x00007ffff4a084e9 in Emotiv::EmotivThreadProc(void*) () from /opt/EmotivResearch_2.0.0.20/lib/libedk.so.1
#8 0x00007ffff3a14314 in start_thread () from /usr/lib/libpthread.so.0
#9 0x00007ffff3d113ed in clone () from /usr/lib/libc.so.6
(gdb) quit
A debugging session is active.
Inferior 1 [process 7092] will be killed.
Quit anyway? (y or n) y
At least we can still write a rudimentary AI while trying to figure out why g++ isn't picking up the libboost_md5 from the Emotiv SDK tarball.