gdb <value optimized out>

G VM drums_gvm at hotmail.com
Mon Dec 13 08:56:26 GMT 2010 

I tried using LD_LIBRARY_PATH. However it was not yet set.
It failed in using the compiled library.

I also tried using /etc/ld.so.conf and ldconfig. Which did not work. I uninstalled the installed krdc package. Do note that this is a plugin for this project. So ldd krdc does not show that the library is not found. I am going to check if I can select the plugin through the gui.

Gonna take a further look at this.

Thanks already for your help!

> From: radub82 at gmail.com
> To: kdevelop at kdevelop.org
> Subject: Re: gdb <value optimized out>
> Date: Mon, 13 Dec 2010 03:05:42 +0200
> 
> On Monday, December 13, 2010 02:25:39 G VM wrote:
> > I just tried compiling using the CMAKE_CXX_FLAGS_DEBUG -ggdb -O0.
> > However I still get <value optimized out>.
> > 
> > I want to debug the krdc project.
> > 
> > CMAKE_BUILD_TYPE is set to Debug ;) (I selected it when importing the
> > sources).
> > 
> > This is really frustrating :S
> > 
> > As an off topic question: I compiled modified source files to .so files and
> > I want those to be used when I execute the main executable. Now the
> > installed ones are used :S
> > 
> I don't know if there's a better way for it or not, I have $LD_LIBRARY_PATH 
> set to the directories of the libraries I wanna use in my environment. This is 
> kinda set up upon me logging in.
> 
> I guess you could set it on the run command to be different for each project...
> Hope I made it clear and simple.
> > Thanks for your answers though! I appreciate your efforts!
> > 
> > > From: radub82 at gmail.com
> > > To: kdevelop at kdevelop.org
> > > Subject: Re: gdb <value optimized out>
> > > Date: Mon, 13 Dec 2010 02:17:13 +0200
> > > 
> > > Oh and you could try another way. If you right click your project and
> > > select configuration, under CMake you can find CMAKE_BUILD_TYPE.
> > > you can change between Release and Debug or RelWithDebugInfo there.
> > > 
> > > On Monday, December 13, 2010 02:05:41 G VM wrote:
> > > > I got a step further.
> > > > It seems that both -g3 -O0 and -g -O2 are in the c++ compilation lines
> > > > (make -n). So the second take priority over the first.
> > > > 
> > > > However I still can't understand were those -g and -O2 are configured.
> > > > The CMAKE_CXX_FLAGS_DEBUG and CMAKE_CXX_FLAGS don't have these.
> > > > 
> > > > If I do a grep for -O2 and remove those, and then do make all works as
> > > > it should.
> > > > 
> > > > touch rdp/rdpview.cpp
> > > > cd build
> > > > make -p | grep rdpview
> > > > 
> > > >    1.
> > > >    
> > > >       rdp/CMakeFiles/krdc_rdpplugin.dir/rdpview.o: ../rdp/rdpview.cpp
> > > > 
> > > > ../core/hostpreferences.h ../core/remoteview.h
> > > > ../rdp/rdphostpreferences.h ../rdp/rdpview.cpp ../rdp/rdpview.h
> > > > /usr/include/KDE/../kdialog.h /usr/include/KDE/../kinputdialog.h
> > > > /usr/include/KDE/../kmessagebox.h
> > > > /usr/include/KDE/../kpassworddialog.h /usr/include/KDE/../kshell.h
> > > > /usr/include/KDE/../kurl.h /usr/include/KDE/KDialog
> > > > /usr/include/KDE/KInputDialog /usr/include/KDE/KMessageBox
> > > > /usr/include/KDE/KPasswordDialog /usr/include/KDE/KShell
> > > > /usr/include/KDE/KUrl /usr/include/KDE/KWallet/../../kwallet.h
> > > > /usr/include/KDE/KWallet/Wallet
> > > > /usr/include/qt4/Gentoo/gentoo-qconfig.h
> > > > /usr/include/qt4/Qt3Support/q3cstring.h
> > > > /usr/include/qt4/Qt3Support/q3valuelist.h
> > > > /usr/include/qt4/QtCore/QEvent /usr/include/qt4/QtCore/QFlags
> > > > /usr/include/qt4/QtCore/QMap
> > > > /usr/include/qt4/QtCore/QObject /usr/include/qt4/QtCore/QPoint
> > > > /usr/include/qt4/QtCore/QPointF /usr/include/qt4/QtCore/QProcess
> > > > /usr/include/qt4/QtCore/QSize /usr/include/qt4/QtCore/QStringList
> > > > /usr/include/qt4/QtCore/QUrl /usr/include/qt4/QtCore/QVariant
> > > > /usr/include/qt4/QtCore/qabstractitemmodel.h
> > > > /usr/include/qt4/QtCore/qalgorithms.h /usr/include/qt4/QtCore/qatomic.h
> > > > /usr/include/qt4/QtCore/qatomic_alpha.h
> > > > /usr/include/qt4/QtCore/qatomic_arch.h
> > > > /usr/include/qt4/QtCore/qatomic_arm.h
> > > > /usr/include/qt4/QtCore/qatomic_armv6.h
> > > > /usr/include/qt4/QtCore/qatomic_avr32.h
> > > > /usr/include/qt4/QtCore/qatomic_bfin.h
> > > > /usr/include/qt4/QtCore/qatomic_bootstrap.h
> > > > /usr/include/qt4/QtCore/qatomic_generic.h
> > > > /usr/include/qt4/QtCore/qatomic_i386.h
> > > > /usr/include/qt4/QtCore/qatomic_ia64.h
> > > > /usr/include/qt4/QtCore/qatomic_macosx.h
> > > > /usr/include/qt4/QtCore/qatomic_mips.h
> > > > /usr/include/qt4/QtCore/qatomic_parisc.h
> > > > /usr/include/qt4/QtCore/qatomic_powerpc.h
> > > > /usr/include/qt4/QtCore/qatomic_s390.h
> > > > /usr/include/qt4/QtCore/qatomic_sh.h
> > > > /usr/include/qt4/QtCore/qatomic_sh4a.h
> > > > /usr/include/qt4/QtCore/qatomic_sparc.h
> > > > /usr/include/qt4/QtCore/qatomic_symbian.h
> > > > /usr/include/qt4/QtCore/qatomic_vxworks.h
> > > > /usr/include/qt4/QtCore/qatomic_x86_64.h
> > > > /usr/include/qt4/QtCore/qbasicatomic.h
> > > > /usr/include/qt4/QtCore/qbuffer.h /usr/include/qt4/QtCore/qbytearray.h
> > > > /usr/include/qt4/QtCore/qchar.h /usr/include/qt4/QtCore/qconfig.h
> > > > /usr/include/qt4/QtCore/qcoreapplication.h
> > > > /usr/include/qt4/QtCore/qcoreevent.h
> > > > /usr/include/qt4/QtCore/qdatastream.h
> > > > /usr/include/qt4/QtCore/qeventloop.h
> > > > /usr/include/qt4/QtCore/qfeatures.h /usr/include/qt4/QtCore/qglobal.h
> > > > /usr/include/qt4/QtCore/qhash.h /usr/include/qt4/QtCore/qiodevice.h
> > > > /usr/include/qt4/QtCore/qiterator.h /usr/include/qt4/QtCore/qline.h
> > > > /usr/include/qt4/QtCore/qlinkedlist.h /usr/include/qt4/QtCore/qlist.h
> > > > /usr/include/qt4/QtCore/qlocale.h /usr/include/qt4/QtCore/qmap.h
> > > > /usr/include/qt4/QtCore/qmargins.h /usr/include/qt4/QtCore/qmetatype.h
> > > > /usr/include/qt4/QtCore/qmimedata.h
> > > > /usr/include/qt4/QtCore/qnamespace.h /usr/include/qt4/QtCore/qobject.h
> > > > /usr/include/qt4/QtCore/qobjectdefs.h /usr/include/qt4/QtCore/qpair.h
> > > > /usr/include/qt4/QtCore/qpoint.h /usr/include/qt4/QtCore/qpointer.h
> > > > /usr/include/qt4/QtCore/qprocess.h /usr/include/qt4/QtCore/qrect.h
> > > > /usr/include/qt4/QtCore/qregexp.h
> > > > /usr/include/qt4/QtCore/qscopedpointer.h
> > > > /usr/include/qt4/QtCore/qset.h /usr/include/qt4/QtCore/qshareddata.h
> > > > /usr/include/qt4/QtCore/qsharedpointer.h
> > > > /usr/include/qt4/QtCore/qsharedpointer_impl.h
> > > > /usr/include/qt4/QtCore/qsize.h /usr/include/qt4/QtCore/qstring.h
> > > > /usr/include/qt4/QtCore/qstringbuilder.h
> > > > /usr/include/qt4/QtCore/qstringlist.h
> > > > /usr/include/qt4/QtCore/qstringmatcher.h /usr/include/qt4/QtCore/qurl.h
> > > > /usr/include/qt4/QtCore/qvariant.h /usr/include/qt4/QtCore/qvector.h
> > > > /usr/include/qt4/QtGui/QAction /usr/include/qt4/QtGui/QApplication
> > > > /usr/include/qt4/QtGui/QButtonGroup /usr/include/qt4/QtGui/QCheckBox
> > > > /usr/include/qt4/QtGui/QDialog /usr/include/qt4/QtGui/QFormLayout
> > > > /usr/include/qt4/QtGui/QGroupBox /usr/include/qt4/QtGui/QHBoxLayout
> > > > /usr/include/qt4/QtGui/QHeaderView /usr/include/qt4/QtGui/QLabel
> > > > /usr/include/qt4/QtGui/QLayout /usr/include/qt4/QtGui/QMessageBox
> > > > /usr/include/qt4/QtGui/QSpacerItem /usr/include/qt4/QtGui/QSpinBox
> > > > /usr/include/qt4/QtGui/QVBoxLayout /usr/include/qt4/QtGui/QWidget
> > > > /usr/include/qt4/QtGui/QX11EmbedContainer
> > > > /usr/include/qt4/QtGui/qabstractbutton.h
> > > > /usr/include/qt4/QtGui/qabstractitemdelegate.h
> > > > /usr/include/qt4/QtGui/qabstractitemview.h
> > > > /usr/include/qt4/QtGui/qabstractscrollarea.h
> > > > /usr/include/qt4/QtGui/qabstractslider.h
> > > > /usr/include/qt4/QtGui/qabstractspinbox.h
> > > > /usr/include/qt4/QtGui/qaction.h /usr/include/qt4/QtGui/qactiongroup.h
> > > > /usr/include/qt4/QtGui/qapplication.h
> > > > /usr/include/qt4/QtGui/qboxlayout.h /usr/include/qt4/QtGui/qbrush.h
> > > > /usr/include/qt4/QtGui/qbuttongroup.h
> > > > /usr/include/qt4/QtGui/qcheckbox.h /usr/include/qt4/QtGui/qcolor.h
> > > > /usr/include/qt4/QtGui/qcursor.h
> > > > /usr/include/qt4/QtGui/qdesktopwidget.h
> > > > /usr/include/qt4/QtGui/qdialog.h /usr/include/qt4/QtGui/qdrag.h
> > > > /usr/include/qt4/QtGui/qevent.h /usr/include/qt4/QtGui/qfont.h
> > > > /usr/include/qt4/QtGui/qfontinfo.h
> > > > /usr/include/qt4/QtGui/qfontmetrics.h
> > > > /usr/include/qt4/QtGui/qformlayout.h /usr/include/qt4/QtGui/qframe.h
> > > > /usr/include/qt4/QtGui/qgridlayout.h
> > > > /usr/include/qt4/QtGui/qgroupbox.h
> > > > /usr/include/qt4/QtGui/qheaderview.h /usr/include/qt4/QtGui/qicon.h
> > > > /usr/include/qt4/QtGui/qimage.h
> > > > /usr/include/qt4/QtGui/qitemselectionmodel.h
> > > > /usr/include/qt4/QtGui/qkeysequence.h /usr/include/qt4/QtGui/qlabel.h
> > > > /usr/include/qt4/QtGui/qlayout.h /usr/include/qt4/QtGui/qlayoutitem.h
> > > > /usr/include/qt4/QtGui/qmacdefines_mac.h
> > > > /usr/include/qt4/QtGui/qmatrix.h /usr/include/qt4/QtGui/qmessagebox.h
> > > > /usr/include/qt4/QtGui/qmime.h /usr/include/qt4/QtGui/qpaintdevice.h
> > > > /usr/include/qt4/QtGui/qpainterpath.h /usr/include/qt4/QtGui/qpalette.h
> > > > /usr/include/qt4/QtGui/qpixmap.h /usr/include/qt4/QtGui/qpolygon.h
> > > > /usr/include/qt4/QtGui/qregion.h /usr/include/qt4/QtGui/qrgb.h
> > > > /usr/include/qt4/QtGui/qrubberband.h
> > > > /usr/include/qt4/QtGui/qsizepolicy.h /usr/include/qt4/QtGui/qslider.h
> > > > /usr/include/qt4/QtGui/qspinbox.h /usr/include/qt4/QtGui/qstyle.h
> > > > /usr/include/qt4/QtGui/qstyleoption.h /usr/include/qt4/QtGui/qtabbar.h
> > > > /usr/include/qt4/QtGui/qtabwidget.h
> > > > /usr/include/qt4/QtGui/qtransform.h
> > > > /usr/include/qt4/QtGui/qtransportauth_qws.h
> > > > /usr/include/qt4/QtGui/qvalidator.h /usr/include/qt4/QtGui/qwidget.h
> > > > /usr/include/qt4/QtGui/qwindowdefs.h
> > > > /usr/include/qt4/QtGui/qwindowdefs_win.h
> > > > /usr/include/qt4/QtGui/qwmatrix.h
> > > > /usr/include/qt4/QtGui/qx11embed_x11.h
> > > > /usr/include/qt4/QtXml/QDomDocument /usr/include/qt4/QtXml/qdom.h
> > > > core/settings.h rdp/../../rdp/rdpview.h rdp/rdpview.moc
> > > > rdp/ui_rdppreferences.h
> > > > rdp/CMakeFiles/krdc_rdpplugin.dir/flags.make 2.
> > > > 
> > > >       #  Implicit rule search has not been done.
> > > >    
> > > >    3.
> > > >    
> > > >       #  Modification time never checked.
> > > >    
> > > >    4.
> > > >    
> > > >       #  File has not been updated.
> > > >    
> > > >    5.
> > > >    
> > > >       #  commands to execute (from
> > > > 
> > > > `rdp/CMakeFiles/krdc_rdpplugin.dir/build.make', line 126): 6.
> > > > 
> > > >               $(CMAKE_COMMAND) -E cmake_progress_report
> > > > 
> > > > /home/xxx/kdenetwork-4.4.5/krdc/build/CMakeFiles $(CMAKE_PROGRESS_4) 7.
> > > > 
> > > >               @$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR)
> > > > 
> > > > --green "Building CXX object
> > > > rdp/CMakeFiles/krdc_rdpplugin.dir/rdpview.o" 8.
> > > > 
> > > >               cd /home/xxx/kdenetwork-4.4.5/krdc/build/rdp &&
> > > >               /usr/bin/c++
> > > >  
> > > >  $(CXX_DEFINES) $(CXX_FLAGS) -o CMakeFiles/krdc_rdpplugin.dir/rdpview.o
> > > >  -c
> > > > 
> > > > /home/xxx/kdenetwork-4.4.5/krdc/rdp/rdpview.cpp
> > > > 
> > > > 
> > > > Vi rdp/CMakeFiles/krdc_rdpplugin.dir/flags.make
> > > > # CMAKE generated file: DO NOT EDIT!
> > > > # Generated by "Unix Makefiles" Generator, CMake Version 2.8
> > > > 
> > > > # compile CXX with /usr/bin/c++
> > > > CXX_FLAGS =  -Wnon-virtual-dtor -Wno-long-long -ansi -Wundef
> > > > -Wcast-align -Wchar-subscripts -Wall -W -Wpointer-arith
> > > > -Wformat-security
> > > > -fno-exceptions -DQT_NO_EXCEPTIONS -fno-check-new -fno-common
> > > > -Woverloaded-virtual -fno-threadsafe-statics -fvisibility=hidden
> > > > -fvisibility-inlines-hidden -g -O2 -fno-reorder-blocks
> > > > -fno-schedule-insns -fno-inline -fPIC
> > > > -I/home/xxx/kdenetwork-4.4.5/krdc/build/rdp
> > > > -I/home/xxx/kdenetwork-4.4.5/krdc/rdp -I/home/xxx/kdenetwork-4.4.5/krdc
> > > > -I/home/xxx/kdenetwork-4.4.5/krdc/build
> > > > -I/home/xxx/kdenetwork-4.4.5/krdc/core
> > > > -I/home/xxx/kdenetwork-4.4.5/krdc/build/core -I/usr/include/KDE
> > > > -I/usr/include/qt4/QtXmlPatterns -I/usr/include/qt4/QtXml
> > > > -I/usr/include/qt4/QtWebKit -I/usr/include/qt4/QtUiTools
> > > > -I/usr/include/qt4/QtTest -I/usr/include/qt4/QtSvg
> > > > -I/usr/include/qt4/QtSql -I/usr/include/qt4/QtScriptTools
> > > > -I/usr/include/qt4/QtScript -I/usr/include/qt4/QtOpenGL
> > > > -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtHelp
> > > > -I/usr/include/qt4/QtDesigner -I/usr/include/qt4/QtDBus
> > > > -I/usr/include/qt4/QtAssistant -I/usr/include/qt4/Qt3Support
> > > > -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore
> > > > -I/usr/include/qt4/Qt -I/usr/share/qt4/mkspecs/default
> > > > -I/usr/include/qt4   -D_GNU_SOURCE -D_LARGEFILE64_SOURCE
> > > > 
> > > > CXX_DEFINES = -DMAKE_KRDC_RDPPLUGIN_LIB -D_BSD_SOURCE
> > > > -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -DQT_NO_STL -DQT_NO_CAST_TO_ASCII
> > > > -D_REENTRANT
> > > > -DKDE_DEPRECATED_WARNINGS -DKDE_DEFAULT_DEBUG_AREA=5012
> > > > 
> > > > So here it is already set.
> > > > 
> > > > Hopefuly this helps finding the cause.
> > > > 
> > > > From: drums_gvm at hotmail.com
> > > > To: kdevelop at kdevelop.org
> > > > Subject: gdb <value optimized out>
> > > > Date: Sat, 11 Dec 2010 16:59:27 +0100
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > 
> > > > Hi all,
> > > > 
> > > > I have been searching for a solution for my problem but unfortunately I
> > > > didn't find a solution.
> > > > 
> > > > Problem:
> > > > When I start my compiled program with gdb and want to print the value
> > > > of an integer (probably other data types as well) I get the message
> > > > <value optimized out>. I am a gentoo user so I am aware that -O
> > > > exists. So I went searching in KDevelop on how to configure this.
> > > > 
> > > > I changed some flags in the "Open Options", "Advanced settings" to use
> > > > -O0.
> > > > 
> > > > CMAKE_CXX_FLAGS
> > > > 
> > > > CMAKE_CXX_FLAGS_DEBUG
> > > > 
> > > > CMAKE_C_FLAGS
> > > > 
> > > > CMAKE_C_FLAGS_DEBUG
> > > > ...
> > > > 
> > > > And on the kdevelop forum I found a thread which mentioned using -g3 as
> > > > well. I did this, cleaned and recompiled the program. But still I have
> > > > the same result.
> > > > 
> > > > I really have no clue anymore what I am doing wrong.
> > > > Anyone has an idea about this?
> > > > 
> > > > I use:
> > > > 
> > > > 
> > > > Version 4.0.2 (using KDevPlatform 1.0.2)
> > > > Using KDE Development Platform 4.4.5 (KDE 4.4.5)
> > > > Program I want to compile to debug is Krdc.
> > > > 
> > > > Thanks in advance for your help!
> > > > 
> > > > 
> > > > _______________________________________________
> > > > kdevelop mailing list
> > > > kdevelop at kdevelop.org
> > > > https://barney.cs.uni-potsdam.de/mailman/listinfo/kdevelop
> > > 
> > > _______________________________________________
> > > kdevelop mailing list
> > > kdevelop at kdevelop.org
> > > https://barney.cs.uni-potsdam.de/mailman/listinfo/kdevelop
> 
> _______________________________________________
> kdevelop mailing list
> kdevelop at kdevelop.org
> https://barney.cs.uni-potsdam.de/mailman/listinfo/kdevelop
 		 	   		  
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