• gcov must be on path
• gcc produces .gcda files.
• geninfo's first pass reads them and creates .gcov files.
• geninfo's second pass calls gcov with a .gcov file as input and produces .gcno files
• gcov files have names like #home#dmacq#code#instantiations#dino2-devel#vast-vm#exe#source#headless#os#unix#main.c.gcov on both Linux and Windows.
• If we execute this code at line 990 in geninfo.pl

 ($instr, $graph) = adjust_graph_filenames($base_dir, $instr, $graph);

then we get this error: geninfo.pl: WARNING: cannot find an entry for C~#code#instantiations#dino2-devel #vast-vm#vm#source#os#windows#estty.c.gcov in .gcno file, skipping file!

• $instr and $graph are hashes that look the same before and after the code executes
• see the #dq's in geninfo.pl.
• this works for perl formatting if you follow http://micksmix.wordpress.com/2009/09/24/format-your-perl-scripts-using-perltidy-and-notepad/)

 perl -x -S perltidy -b "$(FULL_CURRENT_PATH)" -ole=win npp_open $(FULL_CURRENT_PATH) 

• tidy-pm must be in per64\lib\perl
• if perl will not read command line arguments, import the following into regedit:

   Windows Registry Editor Version 5.00
  
  [HKEY_CLASSES_ROOT\pl_auto_file\shell\open\command]
  @="\"C:\\Perl64\\bin\\perl.exe\" \"%1\" %*"