X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=cmake%2Fcmake.d%2F04-build_options.cmake;h=18a1b176aac1dabd6265ab0f6bdd88052389814f;hb=e554c093bc7792d9d3a335372e972d9bfab42499;hp=45b47209f7b0c58cf695b48d04cf104c013a33ce;hpb=3a798fa04ebfd9f7644f304af41baedd1e2a591f;p=staging%2Fxdg-launcher.git

diff --git a/cmake/cmake.d/04-build_options.cmake b/cmake/cmake.d/04-build_options.cmake
index 45b4720..18a1b17 100644
--- a/cmake/cmake.d/04-build_options.cmake
+++ b/cmake/cmake.d/04-build_options.cmake
@@ -33,24 +33,23 @@ if (gcc_minimal_version)
 	endif()
 endif(gcc_minimal_version)
 
-# Check Kernel minimal version
+# Check Kernel mandatory version, will fail the configuration if required version not matched.
+if (kernel_mandatory_version)
+	message (STATUS "${Cyan}-- Check kernel_mandatory_version (found kernel version ${KERNEL_VERSION})${ColourReset}")
+	if (KERNEL_VERSION VERSION_LESS ${kernel_mandatory_version})
+		message(FATAL_ERROR "${Red}**** FATAL: Require at least ${kernel_mandatory_version} please use a recent kernel or source your SDK environment then clean and reconfigure your CMake project.")
+	endif (KERNEL_VERSION VERSION_LESS ${kernel_mandatory_version})
+endif(kernel_mandatory_version)
+
+# Check Kernel minimal version just print a Warning about missing features
+# and set a definition to be used as preprocessor condition in code to disable
+# incompatibles features.
 if (kernel_minimal_version)
-	if(DEFINED ENV{SDKTARGETSYSROOT})
-		file(STRINGS $ENV{SDKTARGETSYSROOT}/usr/include/linux/version.h LINUX_VERSION_CODE_LINE REGEX "LINUX_VERSION_CODE")
-	else()
-		file(STRINGS /usr/include/linux/version.h LINUX_VERSION_CODE_LINE REGEX "LINUX_VERSION_CODE")
-	endif()
-
-	string(REGEX MATCH "[0-9]+" LINUX_VERSION_CODE ${LINUX_VERSION_CODE_LINE})
-	math(EXPR a "${LINUX_VERSION_CODE} >> 16")
-	math(EXPR b "(${LINUX_VERSION_CODE} >> 8) & 255")
-	math(EXPR c "(${LINUX_VERSION_CODE} & 255)")
-
-	set(KERNEL_VERSION "${a}.${b}.${c}")
 	message (STATUS "${Cyan}-- Check kernel_minimal_version (found kernel version ${KERNEL_VERSION})${ColourReset}")
-
 	if (KERNEL_VERSION VERSION_LESS ${kernel_minimal_version})
-		message(FATAL_ERROR "${Red}**** FATAL: Require at least ${kernel_minimal_version} please use a recent kernel or source your SDK environment then clean and reconfigure your CMake project.")
+		message(WARNING "${Yellow}**** Warning: Some feature(s) require at least ${kernel_minimal_version}. Please use a recent kernel or source your SDK environment then clean and reconfigure your CMake project.${ColourReset}")
+	else (KERNEL_VERSION VERSION_LESS ${kernel_minimal_version})
+		add_definitions(-DKERNEL_MINIMAL_VERSION_OK)
 	endif (KERNEL_VERSION VERSION_LESS ${kernel_minimal_version})
 endif(kernel_minimal_version)
 
@@ -69,21 +68,27 @@ add_compile_options(-Werror=maybe-uninitialized)
 add_compile_options(-Werror=implicit-function-declaration)
 add_compile_options(-ffunction-sections -fdata-sections)
 add_compile_options(-fPIC)
-add_compile_options(-g)
 
-set(CMAKE_C_FLAGS_PROFILING   "-g -O2 -pg -Wp,-U_FORTIFY_SOURCE" CACHE STRING "Flags for profiling")
-set(CMAKE_C_FLAGS_DEBUG       "-g -O2 -ggdb -Wp,-U_FORTIFY_SOURCE" CACHE STRING "Flags for debugging")
-set(CMAKE_C_FLAGS_RELEASE     "-O2" CACHE STRING "Flags for releasing")
-set(CMAKE_C_FLAGS_CCOV        "-g -O2 --coverage" CACHE STRING "Flags for coverage test")
+# TODO: make more visible readable compile (macro ? split ?)
+# Compilation option depending on CMAKE_BUILD_TYPE
+##################################################
+add_compile_options($<$<CONFIG:PROFILING>:-g>)
+add_compile_options($<$<CONFIG:PROFILING>:-O0>)
+add_compile_options($<$<CONFIG:PROFILING>:-pg>)
+add_compile_options($<$<CONFIG:PROFILING>:-Wp,-U_FORTIFY_SOURCE>)
+
+add_compile_options($<$<CONFIG:DEBUG>:-g>)
+add_compile_options($<$<CONFIG:DEBUG>:-O0>)
+add_compile_options($<$<CONFIG:DEBUG>:-ggdb>)
+add_compile_options($<$<CONFIG:DEBUG>:-Wp,-U_FORTIFY_SOURCE>)
 
-set(CMAKE_CXX_FLAGS_PROFILING    "-g -O0 -pg -Wp,-U_FORTIFY_SOURCE")
-set(CMAKE_CXX_FLAGS_DEBUG        "-g -O0 -ggdb -Wp,-U_FORTIFY_SOURCE")
-set(CMAKE_CXX_FLAGS_RELEASE      "-g -O2")
-set(CMAKE_CXX_FLAGS_CCOV "-g -O2 --coverage")
+add_compile_options($<$<CONFIG:CCOV>:-g>)
+add_compile_options($<$<CONFIG:CCOV>:-O2>)
+add_compile_options($<$<CONFIG:CCOV>:--coverage>)
 
 # Env variable overload default
 if(DEFINED ENV{INSTALL_PREFIX})
-	set (INSTALL_PREFIX $ENV{INSTALL_PREFIX})
+	set(INSTALL_PREFIX $ENV{INSTALL_PREFIX} CACHE PATH "The path where to install")
 else()
 	set(INSTALL_PREFIX "${CMAKE_SOURCE_DIR}/Install" CACHE PATH "The path where to install")
 endif()