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")
- elseif(DEFINED ENV{PKG_CONFIG_SYSROOT_DIR})
- file(STRINGS $ENV{PKG_CONFIG_SYSROOT_DIR}/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)
# Default compilation options
############################################################################
link_libraries(-Wl,--as-needed -Wl,--gc-sections)
-add_compile_options(-Wall -Wextra -Wconversion)
-add_compile_options(-Wno-unused-parameter) # frankly not using a parameter does it care?
-add_compile_options(-Wno-sign-compare -Wno-sign-conversion)
-add_compile_options(-Werror=maybe-uninitialized)
-add_compile_options(-Werror=implicit-function-declaration)
-add_compile_options(-ffunction-sections -fdata-sections)
-add_compile_options(-fPIC)
-
-# TODO: make more visible readable compile (macro ? split ?)
+set(COMPILE_OPTIONS "-Wall" "-Wextra" "-Wconversion" "-Wno-unused-parameter" "-Wno-sign-compare" "-Wno-sign-conversion" "-Werror=maybe-uninitialized" "-Werror=implicit-function-declaration" "-ffunction-sections" "-fdata-sections" "-fPIC" CACHE STRING "Compilation flags")
+foreach(option ${COMPILE_OPTIONS})
+ add_compile_options($<$<CONFIG:PROFILING>:${option}>)
+endforeach()
+
+# Compilation OPTIONS depending on language
+#########################################
+
+foreach(option ${COMPILE_OPTIONS})
+ add_compile_options(${option})
+endforeach()
+foreach(option ${C_COMPILE_OPTIONS})
+ add_compile_options($<$<COMPILE_LANGUAGE:C>:${option}>)
+endforeach()
+foreach(option ${CXX_COMPILE_OPTIONS})
+ add_compile_options($<$<COMPILE_LANGUAGE:CXX>:${option}>)
+endforeach()
+
# Compilation option depending on CMAKE_BUILD_TYPE
##################################################
-add_compile_options($<$<OR:$<CONFIG:DEBUG>,$<CONFIG:PROFILING>,$<CONFIG:CCOV>>:-g>)
-
-add_compile_options($<$<CONFIG:DEBUG>:-pg>)
-add_compile_options($<$<CONFIG:DEBUG>:-ggdb>)
-add_compile_options($<$<CONFIG:CCOV>:--coverage>)
-
-add_compile_options($<$<CONFIG:DEBUG>:-Og>)
-add_compile_options($<$<CONFIG:PROFILING>:-O0>)
-add_compile_options($<$<OR:$<CONFIG:CCOV>,$<CONFIG:PROFILING>>:-O2>)
-
-add_compile_options($<$<OR:$<CONFIG:DEBUG>,$<CONFIG:PROFILING>>:-Wp,-U_FORTIFY_SOURCE>)
-
+set(PROFILING_COMPILE_OPTIONS "-g" "-O0" "-pg" "-Wp,-U_FORTIFY_SOURCE" CACHE STRING "Compilation flags for PROFILING build type.")
+set(DEBUG_COMPILE_OPTIONS "-g" "-ggdb" "-Wp,-U_FORTIFY_SOURCE" CACHE STRING "Compilation flags for DEBUG build type.")
+set(CCOV_COMPILE_OPTIONS "-g" "-O2" "--coverage" CACHE STRING "Compilation flags for CCOV build type.")
+set(RELEASE_COMPILE_OPTIONS "-g" "-O2" CACHE STRING "Compilation flags for RELEASE build type.")
+foreach(option ${PROFILING_COMPILE_OPTIONS})
+ add_compile_options($<$<CONFIG:PROFILING>:${option}>)
+endforeach()
+foreach(option ${DEBUG_COMPILE_OPTIONS})
+ add_compile_options($<$<CONFIG:PROFILING>:${option}>)
+endforeach()
+foreach(option ${CCOV_COMPILE_OPTIONS})
+ add_compile_options($<$<CONFIG:PROFILING>:${option}>)
+endforeach()
+foreach(option ${RELEASE_COMPILE_OPTIONS})
+ add_compile_options($<$<CONFIG:PROFILING>:${option}>)
+endforeach()
# Env variable overload default
if(DEFINED ENV{INSTALL_PREFIX})
PKG_CHECK_MODULES(${XPREFIX} REQUIRED ${PKG_CONFIG})
INCLUDE_DIRECTORIES(${${XPREFIX}_INCLUDE_DIRS})
- list (APPEND link_libraries ${${XPREFIX}_LDFLAGS})
+ list(APPEND link_libraries ${${XPREFIX}_LDFLAGS})
add_compile_options (${${XPREFIX}_CFLAGS})
endforeach(PKG_CONFIG)