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# Copyright 2016 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
cmake_minimum_required(VERSION 3.5)
project(LibProtobufMutator CXX)
enable_language(C)
enable_language(CXX)
option(LIB_PROTO_MUTATOR_TESTING "Enable test building" ON)
option(LIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF
"Automatically download working protobuf" OFF)
option(LIB_PROTO_MUTATOR_WITH_ASAN "Enable address sanitizer" OFF)
option(PKG_CONFIG_PATH "Directory to install pkgconfig file" "share/pkgconfig")
set(LIB_PROTO_MUTATOR_FUZZER_LIBRARIES "" CACHE STRING "Fuzzing engine libs")
# External dependencies
set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/external)
# External dependencies
include(ProcessorCount)
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads)
find_package(LibLZMA)
include_directories(${LIBLZMA_INCLUDE_DIRS})
find_package(ZLIB)
include_directories(${ZLIB_INCLUDE_DIRS})
set(CMAKE_CXX_STANDARD 11)
include_directories(${PROJECT_SOURCE_DIR})
if (MSVC)
option(LIB_PROTO_MUTATOR_MSVC_STATIC_RUNTIME "Link static runtime libraries" ON)
if (LIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF OR LIB_PROTO_MUTATOR_MSVC_STATIC_RUNTIME)
# This is the default for protobuf with MSVC
# http://www.cmake.org/Wiki/CMake_FAQ#How_can_I_build_my_MSVC_application_with_a_static_runtime.3F
foreach(flag_var
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
if(${flag_var} MATCHES "/MD")
string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
endif(${flag_var} MATCHES "/MD")
endforeach(flag_var)
endif (LIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF OR LIB_PROTO_MUTATOR_MSVC_STATIC_RUNTIME)
endif (MSVC)
set(CMAKE_REQUIRED_FLAGS "-fsanitize=address")
check_cxx_compiler_flag(-fsanitize=address LIB_PROTO_MUTATOR_HAS_SANITIZE_ADDRESS)
check_cxx_compiler_flag("-fsanitize=address -fsanitize-address-use-after-scope"
LIB_PROTO_MUTATOR_HAS_SANITIZE_SCOPE)
unset(CMAKE_REQUIRED_FLAGS)
set(CMAKE_REQUIRED_FLAGS "-fsanitize-coverage=0")
check_cxx_compiler_flag(-fsanitize-coverage= LIB_PROTO_MUTATOR_HAS_NO_COVERAGE)
unset(CMAKE_REQUIRED_FLAGS)
set(CMAKE_REQUIRED_FLAGS "-fsanitize=fuzzer-no-link")
check_cxx_compiler_flag(-fsanitize=fuzzer-no-link LIB_PROTO_MUTATOR_HAS_SANITIZE_FUZZER)
unset(CMAKE_REQUIRED_FLAGS)
set(CMAKE_REQUIRED_FLAGS "-fno-sanitize=fuzzer")
check_cxx_compiler_flag(-fno-sanitize=fuzzer LIB_PROTO_MUTATOR_HAS_NO_SANITIZE_FUZZER)
unset(CMAKE_REQUIRED_FLAGS)
check_cxx_compiler_flag(-Wstring-conversion LIB_PROTO_MUTATOR_HAS_WSTRING_CONVERSION)
if (NOT MSVC)
set(EXTRA_FLAGS "-fno-exceptions -Werror -Wall")
if (LIB_PROTO_MUTATOR_HAS_WSTRING_CONVERSION)
set(EXTRA_FLAGS "${EXTRA_FLAGS} -Wstring-conversion")
endif()
endif(NOT MSVC)
if (LIB_PROTO_MUTATOR_WITH_ASAN)
if (LIB_PROTO_MUTATOR_HAS_SANITIZE_ADDRESS)
set(EXTRA_FLAGS "${EXTRA_FLAGS} -fsanitize=address")
if (LIB_PROTO_MUTATOR_HAS_SANITIZE_SCOPE)
set(EXTRA_FLAGS "${EXTRA_FLAGS} -fsanitize-address-use-after-scope")
endif()
endif()
endif()
# Assume CFLAGS has coverage options if LIB_PROTO_MUTATOR_FUZZER_LIBRARIES was set
if ("${LIB_PROTO_MUTATOR_FUZZER_LIBRARIES}" STREQUAL "")
if (LIB_PROTO_MUTATOR_HAS_SANITIZE_FUZZER)
set(FUZZING_FLAGS "-fsanitize=fuzzer-no-link")
set(FUZZING_FLAGS_BINARY "-fsanitize=fuzzer")
endif()
if (LIB_PROTO_MUTATOR_HAS_SANITIZE_NO_FUZZER)
set(NO_FUZZING_FLAGS "-fno-sanitize=fuzzer")
endif()
endif()
if (LIB_PROTO_MUTATOR_HAS_NO_COVERAGE)
set(NO_FUZZING_FLAGS "${NO_FUZZING_FLAGS} -fsanitize-coverage=0")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${EXTRA_FLAGS}")
set(PROTOBUF_CFLAGS "${CMAKE_C_FLAGS} ${NO_FUZZING_FLAGS} -w")
set(PROTOBUF_CXXFLAGS "${CMAKE_CXX_FLAGS} ${NO_FUZZING_FLAGS} -w")
if(CMAKE_USE_PTHREADS_INIT)
set(PROTOBUF_CFLAGS "${PROTOBUF_CFLAGS} -pthread")
set(PROTOBUF_CXXFLAGS "${PROTOBUF_CXXFLAGS} -pthread")
endif()
if (LIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF)
include(protobuf)
else()
find_package(Protobuf REQUIRED)
include_directories(${PROTOBUF_INCLUDE_DIRS})
include_directories(${CMAKE_CURRENT_BINARY_DIR})
endif()
set(LIB_DIR "lib${LIB_SUFFIX}")
if (LIB_PROTO_MUTATOR_TESTING)
enable_testing()
include(googletest)
if (NOT LIB_PROTO_MUTATOR_CTEST_JOBS)
ProcessorCount(LIB_PROTO_MUTATOR_CTEST_JOBS)
endif()
add_custom_target(check
COMMAND ${CMAKE_CTEST_COMMAND} -j${LIB_PROTO_MUTATOR_CTEST_JOBS} --output-on-failure)
endif()
add_subdirectory(src)
if (NOT "${LIB_PROTO_MUTATOR_FUZZER_LIBRARIES}" STREQUAL "" OR
NOT "${FUZZING_FLAGS}" STREQUAL "")
add_subdirectory(examples EXCLUDE_FROM_ALL)
endif()
install(EXPORT libprotobuf-mutatorTargets FILE libprotobuf-mutatorTargets.cmake
NAMESPACE libprotobuf-mutator:: DESTINATION lib/cmake/libprotobuf-mutator)
configure_file(libprotobuf-mutatorConfig.cmake.in libprotobuf-mutatorConfig.cmake @ONLY)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libprotobuf-mutatorConfig.cmake"
DESTINATION lib/cmake/libprotobuf-mutator)
configure_file("libprotobuf-mutator.pc.in" "libprotobuf-mutator.pc" @ONLY)
install(FILES "${CMAKE_BINARY_DIR}/libprotobuf-mutator.pc"
DESTINATION ${PKG_CONFIG_PATH})
install(DIRECTORY ./port ./src DESTINATION include/libprotobuf-mutator
FILES_MATCHING PATTERN "*.h")