1 ###########################################################################
2 # Copyright 2015, 2016, 2017 IoT.bzh
4 # author: Fulup Ar Foll <fulup@iot.bzh>
5 # contrib: Romain Forlot <romain.forlot@iot.bzh>
7 # Licensed under the Apache License, Version 2.0 (the "License");
8 # you may not use this file except in compliance with the License.
9 # You may obtain a copy of the License at
11 # http://www.apache.org/licenses/LICENSE-2.0
13 # Unless required by applicable law or agreed to in writing, software
14 # distributed under the License is distributed on an "AS IS" BASIS,
15 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 # See the License for the specific language governing permissions and
17 # limitations under the License.
18 ###########################################################################
21 #--------------------------------------------------------------------------
23 # Do not change this cmake template
24 # Customise your preferences in "./conf.d/cmake/config.cmake"
25 #--------------------------------------------------------------------------
27 # Check GCC minimal version
28 if (gcc_minimal_version)
29 message (STATUS "${Cyan}-- Check gcc_minimal_version (found gcc version ${CMAKE_C_COMPILER_VERSION}) \
30 (found g++ version ${CMAKE_CXX_COMPILER_VERSION})${ColourReset}")
31 if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS ${gcc_minimal_version} OR CMAKE_C_COMPILER_VERSION VERSION_LESS ${gcc_minimal_version})
32 message(FATAL_ERROR "${Red}**** FATAL: Require at least gcc-${gcc_minimal_version} please set CMAKE_C[XX]_COMPILER")
34 endif(gcc_minimal_version)
36 # Check Kernel minimal version
37 if (kernel_minimal_version)
38 if(DEFINED ENV{SDKTARGETSYSROOT})
39 file(STRINGS $ENV{SDKTARGETSYSROOT}/usr/include/linux/version.h LINUX_VERSION_CODE_LINE REGEX "LINUX_VERSION_CODE")
41 file(STRINGS /usr/include/linux/version.h LINUX_VERSION_CODE_LINE REGEX "LINUX_VERSION_CODE")
44 string(REGEX MATCH "[0-9]+" LINUX_VERSION_CODE ${LINUX_VERSION_CODE_LINE})
45 math(EXPR a "${LINUX_VERSION_CODE} >> 16")
46 math(EXPR b "(${LINUX_VERSION_CODE} >> 8) & 255")
47 math(EXPR c "(${LINUX_VERSION_CODE} & 255)")
49 set(KERNEL_VERSION "${a}.${b}.${c}")
50 message (STATUS "${Cyan}-- Check kernel_minimal_version (found kernel version ${KERNEL_VERSION})${ColourReset}")
52 if (KERNEL_VERSION VERSION_LESS ${kernel_minimal_version})
53 message(FATAL_ERROR "${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.")
54 endif (KERNEL_VERSION VERSION_LESS ${kernel_minimal_version})
55 endif(kernel_minimal_version)
57 INCLUDE(FindPkgConfig)
58 INCLUDE(CheckIncludeFiles)
59 INCLUDE(CheckLibraryExists)
60 INCLUDE(GNUInstallDirs)
62 # Default compilation options
63 ############################################################################
64 link_libraries(-Wl,--as-needed -Wl,--gc-sections)
65 add_compile_options(-Wall -Wextra -Wconversion)
66 add_compile_options(-Wno-unused-parameter) # frankly not using a parameter does it care?
67 add_compile_options(-Wno-sign-compare -Wno-sign-conversion)
68 add_compile_options(-Werror=maybe-uninitialized)
69 add_compile_options(-Werror=implicit-function-declaration)
70 add_compile_options(-ffunction-sections -fdata-sections)
71 add_compile_options(-fPIC)
72 add_compile_options(-g)
74 set(CMAKE_C_FLAGS_PROFILING "-g -O2 -pg -Wp,-U_FORTIFY_SOURCE" CACHE STRING "Flags for profiling")
75 set(CMAKE_C_FLAGS_DEBUG "-g -O2 -ggdb -Wp,-U_FORTIFY_SOURCE" CACHE STRING "Flags for debugging")
76 set(CMAKE_C_FLAGS_RELEASE "-O2" CACHE STRING "Flags for releasing")
77 set(CMAKE_C_FLAGS_CCOV "-g -O2 --coverage" CACHE STRING "Flags for coverage test")
79 set(CMAKE_CXX_FLAGS_PROFILING "-g -O0 -pg -Wp,-U_FORTIFY_SOURCE")
80 set(CMAKE_CXX_FLAGS_DEBUG "-g -O0 -ggdb -Wp,-U_FORTIFY_SOURCE")
81 set(CMAKE_CXX_FLAGS_RELEASE "-g -O2")
82 set(CMAKE_CXX_FLAGS_CCOV "-g -O2 --coverage")
84 # Env variable overload default
85 if(DEFINED ENV{INSTALL_PREFIX})
86 set (INSTALL_PREFIX $ENV{INSTALL_PREFIX})
88 set(INSTALL_PREFIX "${CMAKE_SOURCE_DIR}/Install" CACHE PATH "The path where to install")
90 set(CMAKE_INSTALL_PREFIX ${INSTALL_PREFIX} CACHE STRING "Installation Prefix")
92 # (BUG!!!) as PKG_CONFIG_PATH does not work [should be en env variable]
93 set(PKG_CONFIG_USE_CMAKE_PREFIX_PATH ON CACHE BOOLEAN "Flag for using prefix path")
95 # Loop on required package and add options
96 foreach (PKG_CONFIG ${PKG_REQUIRED_LIST})
97 string(REGEX REPLACE "[<>]?=.*$" "" XPREFIX ${PKG_CONFIG})
98 PKG_CHECK_MODULES(${XPREFIX} REQUIRED ${PKG_CONFIG})
100 INCLUDE_DIRECTORIES(${${XPREFIX}_INCLUDE_DIRS})
101 list (APPEND link_libraries ${${XPREFIX}_LDFLAGS})
102 add_compile_options (${${XPREFIX}_CFLAGS})
103 endforeach(PKG_CONFIG)
105 # Optional LibEfence Malloc debug library
106 IF(CMAKE_BUILD_TYPE MATCHES DEBUG)
107 CHECK_LIBRARY_EXISTS(efence malloc "" HAVE_LIBEFENCE)
109 MESSAGE(STATUS "Linking with ElectricFence for debugging purposes...")
110 SET(libefence_LIBRARIES "-lefence")
111 list (APPEND link_libraries ${libefence_LIBRARIES})
112 ENDIF(HAVE_LIBEFENCE)
113 ENDIF(CMAKE_BUILD_TYPE MATCHES DEBUG)
115 # set default include directories
116 INCLUDE_DIRECTORIES(${EXTRA_INCLUDE_DIRS})
119 if(NOT BINDINGS_LINK_FLAG)
120 set(BINDINGS_LINK_FLAG "-Wl,--version-script=${PKG_TEMPLATE_PREFIX}/cmake/export.map")