1cmake_minimum_required(VERSION 2.8) 2# generate compile_commands.json 3set(CMAKE_EXPORT_COMPILE_COMMANDS ON) 4include(CheckCXXSymbolExists) 5 6project(FlatBuffers) 7 8# NOTE: Code coverage only works on Linux & OSX. 9option(FLATBUFFERS_CODE_COVERAGE "Enable the code coverage build option." OFF) 10option(FLATBUFFERS_BUILD_TESTS "Enable the build of tests and samples." ON) 11option(FLATBUFFERS_INSTALL "Enable the installation of targets." ON) 12option(FLATBUFFERS_BUILD_FLATLIB "Enable the build of the flatbuffers library" 13 ON) 14option(FLATBUFFERS_BUILD_FLATC "Enable the build of the flatbuffers compiler" 15 ON) 16option(FLATBUFFERS_BUILD_FLATHASH "Enable the build of flathash" ON) 17option(FLATBUFFERS_BUILD_GRPCTEST "Enable the build of grpctest" OFF) 18option(FLATBUFFERS_BUILD_SHAREDLIB 19 "Enable the build of the flatbuffers shared library" 20 OFF) 21option(FLATBUFFERS_LIBCXX_WITH_CLANG "Force libc++ when using Clang" ON) 22# NOTE: Sanitizer check only works on Linux & OSX (gcc & llvm). 23option(FLATBUFFERS_CODE_SANITIZE 24 "Add '-fsanitize' flags to 'flattests' and 'flatc' targets." 25 OFF) 26option(FLATBUFFERS_PACKAGE_REDHAT 27 "Build an rpm using the 'package' target." 28 OFF) 29option(FLATBUFFERS_PACKAGE_DEBIAN 30 "Build an deb using the 'package' target." 31 OFF) 32 33if(NOT FLATBUFFERS_BUILD_FLATC AND FLATBUFFERS_BUILD_TESTS) 34 message(WARNING 35 "Cannot build tests without building the compiler. Tests will be disabled.") 36 set(FLATBUFFERS_BUILD_TESTS OFF) 37endif() 38 39if(DEFINED FLATBUFFERS_MAX_PARSING_DEPTH) 40 # Override the default recursion depth limit. 41 add_definitions(-DFLATBUFFERS_MAX_PARSING_DEPTH=${FLATBUFFERS_MAX_PARSING_DEPTH}) 42 message(STATUS "FLATBUFFERS_MAX_PARSING_DEPTH: ${FLATBUFFERS_MAX_PARSING_DEPTH}") 43endif() 44 45# Auto-detect locale-narrow 'strtod_l' function. 46if(NOT DEFINED FLATBUFFERS_LOCALE_INDEPENDENT) 47 if(MSVC) 48 check_cxx_symbol_exists(_strtof_l stdlib.h FLATBUFFERS_LOCALE_INDEPENDENT) 49 else() 50 check_cxx_symbol_exists(strtof_l stdlib.h FLATBUFFERS_LOCALE_INDEPENDENT) 51 endif() 52endif() 53add_definitions(-DFLATBUFFERS_LOCALE_INDEPENDENT=$<BOOL:${FLATBUFFERS_LOCALE_INDEPENDENT}>) 54 55set(FlatBuffers_Library_SRCS 56 include/flatbuffers/code_generators.h 57 include/flatbuffers/base.h 58 include/flatbuffers/flatbuffers.h 59 include/flatbuffers/hash.h 60 include/flatbuffers/idl.h 61 include/flatbuffers/util.h 62 include/flatbuffers/reflection.h 63 include/flatbuffers/reflection_generated.h 64 include/flatbuffers/stl_emulation.h 65 include/flatbuffers/flexbuffers.h 66 include/flatbuffers/registry.h 67 include/flatbuffers/minireflect.h 68 src/code_generators.cpp 69 src/idl_parser.cpp 70 src/idl_gen_text.cpp 71 src/reflection.cpp 72 src/util.cpp 73) 74 75set(FlatBuffers_Compiler_SRCS 76 ${FlatBuffers_Library_SRCS} 77 src/idl_gen_cpp.cpp 78 src/idl_gen_dart.cpp 79 src/idl_gen_general.cpp 80 src/idl_gen_go.cpp 81 src/idl_gen_js_ts.cpp 82 src/idl_gen_php.cpp 83 src/idl_gen_python.cpp 84 src/idl_gen_lobster.cpp 85 src/idl_gen_lua.cpp 86 src/idl_gen_rust.cpp 87 src/idl_gen_fbs.cpp 88 src/idl_gen_grpc.cpp 89 src/idl_gen_json_schema.cpp 90 src/flatc.cpp 91 src/flatc_main.cpp 92 grpc/src/compiler/schema_interface.h 93 grpc/src/compiler/cpp_generator.h 94 grpc/src/compiler/cpp_generator.cc 95 grpc/src/compiler/go_generator.h 96 grpc/src/compiler/go_generator.cc 97 grpc/src/compiler/java_generator.h 98 grpc/src/compiler/java_generator.cc 99) 100 101set(FlatHash_SRCS 102 include/flatbuffers/hash.h 103 src/flathash.cpp 104) 105 106set(FlatBuffers_Tests_SRCS 107 ${FlatBuffers_Library_SRCS} 108 src/idl_gen_fbs.cpp 109 tests/test.cpp 110 tests/test_assert.h 111 tests/test_assert.cpp 112 tests/test_builder.h 113 tests/test_builder.cpp 114 # file generate by running compiler on tests/monster_test.fbs 115 ${CMAKE_CURRENT_BINARY_DIR}/tests/monster_test_generated.h 116) 117 118set(FlatBuffers_Sample_Binary_SRCS 119 include/flatbuffers/flatbuffers.h 120 samples/sample_binary.cpp 121 # file generated by running compiler on samples/monster.fbs 122 ${CMAKE_CURRENT_BINARY_DIR}/samples/monster_generated.h 123) 124 125set(FlatBuffers_Sample_Text_SRCS 126 ${FlatBuffers_Library_SRCS} 127 samples/sample_text.cpp 128 # file generated by running compiler on samples/monster.fbs 129 ${CMAKE_CURRENT_BINARY_DIR}/samples/monster_generated.h 130) 131 132set(FlatBuffers_Sample_BFBS_SRCS 133 ${FlatBuffers_Library_SRCS} 134 src/idl_gen_general.cpp 135 samples/sample_bfbs.cpp 136 # file generated by running compiler on samples/monster.fbs 137 ${CMAKE_CURRENT_BINARY_DIR}/samples/monster_generated.h 138) 139 140set(FlatBuffers_GRPCTest_SRCS 141 include/flatbuffers/flatbuffers.h 142 include/flatbuffers/grpc.h 143 tests/monster_test.grpc.fb.h 144 tests/test_assert.h 145 tests/test_builder.h 146 tests/monster_test.grpc.fb.cc 147 tests/test_assert.cpp 148 tests/test_builder.cpp 149 grpc/tests/grpctest.cpp 150 grpc/tests/message_builder_test.cpp 151 # file generated by running compiler on samples/monster.fbs 152 ${CMAKE_CURRENT_BINARY_DIR}/samples/monster_generated.h 153) 154 155# source_group(Compiler FILES ${FlatBuffers_Compiler_SRCS}) 156# source_group(Tests FILES ${FlatBuffers_Tests_SRCS}) 157 158if(EXISTS "${CMAKE_TOOLCHAIN_FILE}") 159 # do not apply any global settings if the toolchain 160 # is being configured externally 161 message(STATUS "Using toolchain file: ${CMAKE_TOOLCHAIN_FILE}.") 162elseif(APPLE) 163 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -stdlib=libc++") 164 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -pedantic -Werror -Wextra -Wno-unused-parameter") 165 set(FLATBUFFERS_PRIVATE_CXX_FLAGS "-Wold-style-cast") 166elseif(CMAKE_COMPILER_IS_GNUCXX) 167 if(CYGWIN) 168 set(CMAKE_CXX_FLAGS 169 "${CMAKE_CXX_FLAGS} -std=gnu++11") 170 else(CYGWIN) 171 set(CMAKE_CXX_FLAGS 172 "${CMAKE_CXX_FLAGS} -std=c++0x") 173 endif(CYGWIN) 174 set(CMAKE_CXX_FLAGS 175 "${CMAKE_CXX_FLAGS} -Wall -pedantic -Werror -Wextra -Werror=shadow") 176 set(FLATBUFFERS_PRIVATE_CXX_FLAGS "-Wold-style-cast") 177 if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.4) 178 if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0) 179 set(CMAKE_CXX_FLAGS 180 "${CMAKE_CXX_FLAGS} -faligned-new -Werror=implicit-fallthrough=2") 181 endif() 182 set(CMAKE_CXX_FLAGS 183 "${CMAKE_CXX_FLAGS} -Wunused-result -Werror=unused-result -Wunused-parameter -Werror=unused-parameter") 184 endif() 185 186 # Certain platforms such as ARM do not use signed chars by default 187 # which causes issues with certain bounds checks. 188 set(CMAKE_CXX_FLAGS 189 "${CMAKE_CXX_FLAGS} -fsigned-char") 190 191elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang") 192 set(CMAKE_CXX_FLAGS 193 "${CMAKE_CXX_FLAGS} -std=c++0x -Wall -pedantic -Werror -Wextra -Wno-unused-parameter") 194 set(FLATBUFFERS_PRIVATE_CXX_FLAGS "-Wold-style-cast") 195 if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.8) 196 list(APPEND FLATBUFFERS_PRIVATE_CXX_FLAGS "-Wimplicit-fallthrough" "-Wextra-semi" "-Wc++98-compat-extra-semi" "-Werror=unused-private-field") # enable warning 197 endif() 198 if(FLATBUFFERS_LIBCXX_WITH_CLANG) 199 if(NOT "${CMAKE_SYSTEM_NAME}" MATCHES "Linux") 200 set(CMAKE_CXX_FLAGS 201 "${CMAKE_CXX_FLAGS} -stdlib=libc++") 202 endif() 203 if(NOT ("${CMAKE_SYSTEM_NAME}" MATCHES "FreeBSD" OR 204 "${CMAKE_SYSTEM_NAME}" MATCHES "Linux")) 205 set(CMAKE_EXE_LINKER_FLAGS 206 "${CMAKE_EXE_LINKER_FLAGS} -lc++abi") 207 endif() 208 endif() 209 210 # Certain platforms such as ARM do not use signed chars by default 211 # which causes issues with certain bounds checks. 212 set(CMAKE_CXX_FLAGS 213 "${CMAKE_CXX_FLAGS} -fsigned-char") 214 215elseif(MSVC) 216 # Visual Studio pedantic build settings 217 # warning C4512: assignment operator could not be generated 218 # warning C4316: object allocated on the heap may not be aligned 219 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 /WX /wd4512 /wd4316") 220endif() 221 222if(FLATBUFFERS_CODE_COVERAGE) 223 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -fprofile-arcs -ftest-coverage") 224 set(CMAKE_EXE_LINKER_FLAGS 225 "${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs -ftest-coverage") 226endif() 227 228function(add_fsanitize_to_target _target _sanitizer) 229 # FLATBUFFERS_CODE_SANITIZE: boolean {ON,OFF,YES,NO} or string with list of sanitizer. 230 # List of sanitizer is string starts with '=': "=address,undefined,thread,memory". 231 if((${CMAKE_CXX_COMPILER_ID} MATCHES "Clang") OR 232 ((${CMAKE_CXX_COMPILER_ID} MATCHES "GNU") AND NOT (CMAKE_CXX_COMPILER_VERSION VERSION_LESS "4.9")) 233 ) 234 set(_sanitizer_flags "=address,undefined") 235 if(_sanitizer MATCHES "=.*") 236 # override default by user-defined sanitizer list 237 set(_sanitizer_flags ${_sanitizer}) 238 endif() 239 target_compile_options(${_target} PRIVATE 240 -g -fsigned-char -fno-omit-frame-pointer 241 "-fsanitize${_sanitizer_flags}") 242 target_link_libraries(${_target} PRIVATE 243 "-fsanitize${_sanitizer_flags}") 244 set_property(TARGET ${_target} PROPERTY POSITION_INDEPENDENT_CODE ON) 245 message(STATUS "Sanitizer ${_sanitizer_flags} added to ${_target}") 246 endif() 247endfunction() 248 249if(BIICODE) 250 include(biicode/cmake/biicode.cmake) 251 return() 252endif() 253 254include_directories(include) 255include_directories(grpc) 256 257if(FLATBUFFERS_BUILD_FLATLIB) 258 add_library(flatbuffers STATIC ${FlatBuffers_Library_SRCS}) 259 # CMake > 2.8.11: Attach header directory for when build via add_subdirectory(). 260 target_include_directories(flatbuffers INTERFACE 261 $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>) 262 target_compile_options(flatbuffers PRIVATE "${FLATBUFFERS_PRIVATE_CXX_FLAGS}") 263endif() 264 265if(FLATBUFFERS_BUILD_FLATC) 266 add_executable(flatc ${FlatBuffers_Compiler_SRCS}) 267 target_compile_options(flatc PRIVATE "${FLATBUFFERS_PRIVATE_CXX_FLAGS}") 268 if(FLATBUFFERS_CODE_SANITIZE AND NOT WIN32) 269 add_fsanitize_to_target(flatc ${FLATBUFFERS_CODE_SANITIZE}) 270 endif() 271 if(NOT FLATBUFFERS_FLATC_EXECUTABLE) 272 set(FLATBUFFERS_FLATC_EXECUTABLE $<TARGET_FILE:flatc>) 273 endif() 274 if(MSVC) 275 # Make flatc.exe not depend on runtime dlls for easy distribution. 276 target_compile_options(flatc PUBLIC $<$<CONFIG:Release>:/MT>) 277 endif() 278endif() 279 280if(FLATBUFFERS_BUILD_FLATHASH) 281 add_executable(flathash ${FlatHash_SRCS}) 282endif() 283 284if(FLATBUFFERS_BUILD_SHAREDLIB) 285 add_library(flatbuffers_shared SHARED ${FlatBuffers_Library_SRCS}) 286 287 # Shared object version: "major.minor.micro" 288 # - micro updated every release when there is no API/ABI changes 289 # - minor updated when there are additions in API/ABI 290 # - major (ABI number) updated when there are changes in ABI (or removals) 291 set(FlatBuffers_Library_SONAME_MAJOR "1") 292 set(FlatBuffers_Library_SONAME_FULL "${FlatBuffers_Library_SONAME_MAJOR}.10.0") 293 set_target_properties(flatbuffers_shared PROPERTIES OUTPUT_NAME flatbuffers 294 SOVERSION "${FlatBuffers_Library_SONAME_MAJOR}" 295 VERSION "${FlatBuffers_Library_SONAME_FULL}") 296endif() 297 298function(compile_flatbuffers_schema_to_cpp SRC_FBS) 299 get_filename_component(SRC_FBS_DIR ${SRC_FBS} PATH) 300 string(REGEX REPLACE "\\.fbs$" "_generated.h" GEN_HEADER ${SRC_FBS}) 301 add_custom_command( 302 OUTPUT ${GEN_HEADER} 303 COMMAND "${FLATBUFFERS_FLATC_EXECUTABLE}" -c --no-includes --gen-mutable 304 --gen-object-api --gen-compare -o "${SRC_FBS_DIR}" 305 --cpp-ptr-type flatbuffers::unique_ptr # Used to test with C++98 STLs 306 --reflect-names 307 -I "${CMAKE_CURRENT_SOURCE_DIR}/tests/include_test" 308 "${CMAKE_CURRENT_SOURCE_DIR}/${SRC_FBS}" 309 DEPENDS flatc) 310endfunction() 311 312function(compile_flatbuffers_schema_to_binary SRC_FBS) 313 get_filename_component(SRC_FBS_DIR ${SRC_FBS} PATH) 314 string(REGEX REPLACE "\\.fbs$" ".bfbs" GEN_BINARY_SCHEMA ${SRC_FBS}) 315 add_custom_command( 316 OUTPUT ${GEN_BINARY_SCHEMA} 317 COMMAND "${FLATBUFFERS_FLATC_EXECUTABLE}" -b --schema -o "${SRC_FBS_DIR}" 318 "${CMAKE_CURRENT_SOURCE_DIR}/${SRC_FBS}" 319 DEPENDS flatc) 320endfunction() 321 322if(FLATBUFFERS_BUILD_TESTS) 323 compile_flatbuffers_schema_to_cpp(tests/monster_test.fbs) 324 include_directories(${CMAKE_CURRENT_BINARY_DIR}/tests) 325 add_executable(flattests ${FlatBuffers_Tests_SRCS}) 326 set_property(TARGET flattests 327 PROPERTY COMPILE_DEFINITIONS FLATBUFFERS_TRACK_VERIFIER_BUFFER_SIZE 328 FLATBUFFERS_DEBUG_VERIFICATION_FAILURE=1) 329 if(FLATBUFFERS_CODE_SANITIZE) 330 if(WIN32) 331 target_compile_definitions(flattests PRIVATE FLATBUFFERS_MEMORY_LEAK_TRACKING) 332 message(STATUS "Sanitizer MSVC::_CrtDumpMemoryLeaks added to flattests") 333 else() 334 add_fsanitize_to_target(flattests ${FLATBUFFERS_CODE_SANITIZE}) 335 endif() 336 endif() 337 338 compile_flatbuffers_schema_to_cpp(samples/monster.fbs) 339 include_directories(${CMAKE_CURRENT_BINARY_DIR}/samples) 340 add_executable(flatsamplebinary ${FlatBuffers_Sample_Binary_SRCS}) 341 add_executable(flatsampletext ${FlatBuffers_Sample_Text_SRCS}) 342 add_executable(flatsamplebfbs ${FlatBuffers_Sample_BFBS_SRCS}) 343endif() 344 345if(FLATBUFFERS_BUILD_GRPCTEST) 346 if(CMAKE_COMPILER_IS_GNUCXX) 347 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-parameter -Wno-shadow") 348 endif() 349 if(NOT GRPC_INSTALL_PATH) 350 message(SEND_ERROR "GRPC_INSTALL_PATH variable is not defined. See grpc/README.md") 351 endif() 352 if(NOT PROTOBUF_DOWNLOAD_PATH) 353 message(SEND_ERROR "PROTOBUF_DOWNLOAD_PATH variable is not defined. See grpc/README.md") 354 endif() 355 INCLUDE_DIRECTORIES(${GRPC_INSTALL_PATH}/include) 356 INCLUDE_DIRECTORIES(${PROTOBUF_DOWNLOAD_PATH}/src) 357 LINK_DIRECTORIES(${GRPC_INSTALL_PATH}/lib) 358 add_executable(grpctest ${FlatBuffers_GRPCTest_SRCS}) 359 target_link_libraries(grpctest grpc++_unsecure grpc_unsecure gpr pthread dl) 360endif() 361 362include(CMake/Version.cmake) 363 364if(FLATBUFFERS_INSTALL) 365 include(GNUInstallDirs) 366 367 install(DIRECTORY include/flatbuffers DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}) 368 369 set(FB_CMAKE_DIR "${CMAKE_INSTALL_LIBDIR}/cmake/flatbuffers") 370 371 configure_file(CMake/FlatbuffersConfigVersion.cmake.in FlatbuffersConfigVersion.cmake @ONLY) 372 install( 373 FILES "CMake/FlatbuffersConfig.cmake" "${CMAKE_CURRENT_BINARY_DIR}/FlatbuffersConfigVersion.cmake" 374 DESTINATION ${FB_CMAKE_DIR} 375 ) 376 377 if(FLATBUFFERS_BUILD_FLATLIB) 378 if(CMAKE_VERSION VERSION_LESS 3.0) 379 install( 380 TARGETS flatbuffers EXPORT FlatbuffersTargets 381 ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} 382 ) 383 else() 384 install( 385 TARGETS flatbuffers EXPORT FlatbuffersTargets 386 ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} 387 INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} 388 ) 389 endif() 390 391 install(EXPORT FlatbuffersTargets 392 FILE FlatbuffersTargets.cmake 393 NAMESPACE flatbuffers:: 394 DESTINATION ${FB_CMAKE_DIR} 395 ) 396 endif() 397 398 if(FLATBUFFERS_BUILD_FLATC) 399 install( 400 TARGETS flatc EXPORT FlatcTargets 401 RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} 402 ) 403 404 install( 405 EXPORT FlatcTargets 406 FILE FlatcTargets.cmake 407 NAMESPACE flatbuffers:: 408 DESTINATION ${FB_CMAKE_DIR} 409 ) 410 endif() 411 412 if(FLATBUFFERS_BUILD_SHAREDLIB) 413 if(CMAKE_VERSION VERSION_LESS 3.0) 414 install( 415 TARGETS flatbuffers_shared EXPORT FlatbuffersSharedTargets 416 ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} 417 RUNTIME DESTINATION ${CMAKE_INSTALL_LIBDIR} 418 LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} 419 ) 420 else() 421 install( 422 TARGETS flatbuffers_shared EXPORT FlatbuffersSharedTargets 423 ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} 424 RUNTIME DESTINATION ${CMAKE_INSTALL_LIBDIR} 425 LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} 426 INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} 427 ) 428 endif() 429 430 install( 431 EXPORT FlatbuffersSharedTargets 432 FILE FlatbuffersSharedTargets.cmake 433 NAMESPACE flatbuffers:: 434 DESTINATION ${FB_CMAKE_DIR} 435 ) 436 endif() 437endif() 438 439if(FLATBUFFERS_BUILD_TESTS) 440 enable_testing() 441 442 file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/tests" DESTINATION 443 "${CMAKE_CURRENT_BINARY_DIR}") 444 add_test(NAME flattests COMMAND flattests) 445 if(FLATBUFFERS_BUILD_GRPCTEST) 446 add_test(NAME grpctest COMMAND grpctest) 447 endif() 448endif() 449 450include(CMake/BuildFlatBuffers.cmake) 451 452if(UNIX) 453 # Use of CPack only supported on Linux systems. 454 if(FLATBUFFERS_PACKAGE_DEBIAN) 455 include(CMake/PackageDebian.cmake) 456 endif() 457 if (FLATBUFFERS_PACKAGE_REDHAT) 458 include(CMake/PackageRedhat.cmake) 459 endif() 460 include(CPack) 461endif() 462