Re: [Plplot-devel] build PLPlot with debug symbols in linux / cmake

[Pedro V. <ped...@sp...>]

I found out about the debug build cmake option, with

cmake -DCMAKE_BUILD_TYPE=Debug ...and I was able to get into the PLlot code, at least someI replaced the code with the code from the PLplot wxwidgets demo, just to make sure the error is not on my code.and the stack call isvoid Plot(wxPLplotwindow<WXWINDOW> *plotwindow){wxPLplotstream* pls = plotwindow->GetStream();...pls->adv( 0 );then inside adv()plstream::adv( PLINT page ){set_stream();the segmentation fault happens herehowever in the linux build I *cannot* step into set_stream();I wonder why, I was able to step into here but not further , it makes no senseCould it be because of the use of templates in the PLPlot wxWidgets code?----- Original Message ----- 
  From: Pedro Vicente 
  To: plp...@li... 
  Sent: Thursday, December 08, 2016 1:52 AM
  Subject: [Plplot-devel] build PLPlot with debug symbols in linux / cmake



  Hi Alan

  I have a wxWidgets application that I developed for Windows and Linux that uses PLplot .

  I started having a segfault on the *Linux* only version.

  Debugging in Windows is a breeze with Visual Studio.

  For Linux I was able to make a QtCreator project to debug (yes, Qt debugging wxWidgets !)

  However when I try to step into the PLplot code, there is no step into, because probably debugging symbols were not built

  I used the following cmake call

  cmake ..  -G "Unix Makefiles" -DBUILD_SHARED_LIBS:BOOL=OFF -DENABLE_f95:BOOL=OFF -DENABLE_tcl:BOOL=OFF -DENABLE_tk:BOOL=OFF -DCMAKE_INSTALL_PREFIX:PATH=/data/data127/pvicente/install/plplot-5.11.1 -DPL_HAVE_PTHREAD:BOOL=OFF -DPLD_xwin:BOOL=OFF -DPLD_wxwidgets:BOOL=ON -DwxWidgets_ROOT_DIR:PATH=/data/data127/pvicente/install/wxwidgets-3.1.0 -DwxWidgets_LIB_DIR:PATH=/data/data127/pvicente/install/wxwidgets-3.1.0/lib -DwxWidgets_CONFIGURATION=mswud -DENABLE_MIX_CXX=ON -DwxWidgets_EXCLUDE_COMMON_LIBRARIES:BOOL=OFF


  this is more probably a cmake question, but I am not that familiar with cmake, so the question is, 
  how can I add debug symbols to PLPlot for  the above cmake call?

  The code is attached 

  The segfault happens when I try to get into the init() call here

  wx_PLplotstream* pls = frame->GetStream();
  pls->init();

  The weird thing is that I have nearly identical code for other application that works fine

  when I was learning the PLplot code , and the app was just exiting for unknow reasons I found out that the init() call is dependent on at least 2 pallete and 2 font

  files to read from several "standard" locations.

  Since I develop cross platforms and in many machines I ended up doing a svn repository with those 4 files at the same location as the program, like that they are always found.

  but that is not the cause here, because those file are found (by the way, is there a way to eliminate the need to read those files?)

  The Qt project is also attached in case anyone needs a Qt project to debug wxWidgets and PLPlot

  thanks

  -Pedro







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