cmake: Add coverage support.

CMakeLists.txt

@@ -1,6 +1,20 @@
 cmake_minimum_required(VERSION 2.6)
 project(node)
 
+if(USE_GCOV)
+  set(CMAKE_BUILD_TYPE "Debug")
+
+  # Set global c and c++ flags
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fprofile-arcs -ftest-coverage")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fprofile-arcs -ftest-coverage")
+
+  # Link flags used for creating executables
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lgcov -fprofile-arcs")
+
+  # Link flags used for creating shared libraries
+  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -lgcov -profile-arcs")
+endif()
+
 #
 # options
 #
@@ -72,5 +86,9 @@ if(${OPENSSL_FOUND} MATCHES TRUE)
   message("  OpenSSL:            ${OPENSSL_LIBRARIES}")
 endif()
 
-# message("  CCFLAGS:            ${CCFLAGS}")
-# message("  CPPFLAGS:           ${CPPFLAGS}")
+if(USE_GCOV)
+  message("  gcov:               enabled")
+endif()
+
+message("  CCFLAGS:            ${CCFLAGS}")
+message("  CPPFLAGS:           ${CPPFLAGS}")

Makefile.cmake

@@ -30,4 +30,7 @@ test: $(BUILD)/Makefile
 cdash: $(BUILD)/Makefile
 	cd $(BUILD) && make Experimental
 
-.PHONY: build install clean doc package test cdash
+cdash-cov: $(BUILD)/Makefile
+	cd $(BUILD) && $(CMAKE) -DUSE_GCOV=True .. && make Experimental
+
+.PHONY: build install clean doc package test cdash cdash-cov

README.cmake

@@ -30,6 +30,10 @@ To submit test results (see http://my.cdash.org/index.php?project=node):
 
   make -f Makefile.cmake cdash
 
+To submit coverage test results:
+
+  make -f Makefile.cmake cdash-cov
+
 Using cmake directly:
   cd ~/your-node-source-dir
   mkdir name-of-build-dir     (can be anything)

cmake/configure.cmake

@@ -38,17 +38,16 @@ set(CMAKE_C_FLAGS_RELEASE "-g -O3 -DNDEBUG $ENV{CFLAGS}")
 set(CMAKE_CXX_FLAGS_RELEASE "-g -O3 -DNDEBUG $ENV{CXXFLAGS}")
 
 if(${node_platform} MATCHES sunos)
-  # shouldn't this be added to CMAE_C_FLAGS or something?
   add_definitions(-threads)
 elseif(NOT ${node_platform} MATCHES cygwin*)
-  # shouldn't this be added to CMAE_C_FLAGS or something?
   add_definitions(-pthread)
-  set(CMAKE_C_FLAGS -rdynamic)
-  set(CMAKE_EXE_LINKER_FLAGS -pthread)
+  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -rdynamic")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -rdynamic")
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pthread")
 endif()
 
 if(${node_platform} MATCHES darwin)
-  set(CMAKE_EXE_LINKER_FLAGS "-framework Carbon")
+  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -framework Carbon")
 endif()
 
 check_function_exists(fdatasync HAVE_FDATASYNC)