cmake: add gcov support for looking at test coverage

This adds a cmake option for developers, which enables quick checking of code coverage via gcov, making (hopefully) it easier to track test cases, and what we should be doing for the next release. Use this today to track down some iio_attr issues. Signed-off-by: Robin Getz <[email protected]>
analogdevicesinc · Jun 4, 2020 · bbc9411 · bbc9411
1 parent cc26e6e
commit bbc9411
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -163,6 +163,12 @@ if (MSVC)
 		add_compile_options(/WX)
 	endif()
 elseif (CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID STREQUAL "Clang")
+	option(WITH_GCOV "Build with gcov profiling flags" OFF)
+	if (WITH_GCOV)
+		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fprofile-arcs -ftest-coverage")
+		SET(CMAKE_EXE_LINKER_FLAGS  "${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs -ftest-coverage")
+		SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}  -fprofile-arcs -ftest-coverage")
+	endif()
 	if(DEFINED ENV{CI} AND (DEFINED ENV{TRAVIS} OR DEFINED ENV{APPVEYOR}))
 		message(STATUS "Running in CI environment (Travis or AppVeyor), setting -Werror")
 		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")