Code coverage measurement support (with lcov)

This was SVN commit r7203.

build/coverage/gen.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+# Run "update-workspaces.sh --coverage" (in the appropriate directory) then
+# do "make test Collada", before running this script.
+# Also make sure you don't build via ccache. Also you might need a patch like
+# http://ltp.cvs.sourceforge.net/viewvc/ltp/utils/analysis/lcov/bin/lcov?r1=1.33&r2=1.34
+
+rm -f app.info
+
+for APPDIR in ../workspaces/gcc/obj/*; do
+  lcov -d $APPDIR --zerocounters
+  lcov -d $APPDIR -b ../workspaces/gcc --capture --initial -o temp.info
+  if [[ -e app.info ]]; then
+    lcov -a app.info -a temp.info -o app.info
+  else
+    mv temp.info app.info
+  fi
+done
+
+(cd ../../binaries/system/; ./test_dbg)
+
+for APPDIR in ../workspaces/gcc/obj/*; do
+  lcov -d $APPDIR -b ../workspaces/gcc --capture -o temp.info &&
+    lcov -a app.info -a temp.info -o app.info
+done
+
+lcov -r app.info '/usr/*' -o app.info
+lcov -r app.info '*/libraries/*' -o app.info
+
+mkdir output
+(cd output; genhtml ../app.info)