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)

build/premake/premake.lua

@@ -1,5 +1,6 @@
 addoption("atlas", "Include Atlas scenario editor packages")
 addoption("collada", "Include COLLADA packages (requires FCollada library)")
+addoption("coverage", "Enable code coverage data collection (GCC only)")
 addoption("aoe3ed", "Include AoE3Ed")
 addoption("icc", "Use Intel C++ Compiler (Linux only; should use either \"--cc icc\" or --without-pch too, and then set CXX=icpc before calling make)")
 addoption("outpath", "Location for generated project files")
@@ -196,6 +197,10 @@ function package_set_build_flags()
 					"-Wl,--as-needed",
 				})
 			end
+			if options["coverage"] then
+				tinsert(package.buildoptions, {"-fprofile-arcs", "-ftest-coverage"})
+				tinsert(package.links, "gcov")
+			end
 		end
 
 		tinsert(package.buildoptions, {