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# SPDX-License-Identifier: GPL-2.0-only
# Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
cmake_minimum_required(VERSION 3.20)
if (NOT DEFINED DEFAULT_PROJECT_VERSION)
set(DEFAULT_PROJECT_VERSION 0.0.0)
endif ()
project(bpfilter
VERSION ${DEFAULT_PROJECT_VERSION}
DESCRIPTION "BPF-based packet filtering framework"
LANGUAGES C
)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/tools/cmake")
include(GitVersion)
get_version_from_git()
message(NOTICE "bpfilter version ${PROJECT_VERSION}${PROJECT_VERSION_SUFFIX}")
include(GNUInstallDirs)
option(NO_DOCS "Disable documentation generation" 0)
option(NO_TESTS "Disable unit, end-to-end, and integration tests" 0)
option(NO_CHECKS "Disable the check target (clang-tidy and clang-format" 0)
option(NO_BENCHMARKS "Disable the benchmark" 0)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
set(CMAKE_C_FLAGS_RELEASE "") # No NDEBUG in release mode
set(CMAKE_CXX_FLAGS_RELEASE "") # No NDEBUG in release mode
set(BF_CONTACT "Quentin Deslandes <qde@naccy.de>")
if (NOT CMAKE_BUILD_TYPE)
message(STATUS "Setting build type to 'release' as none was specified.")
set(CMAKE_BUILD_TYPE "release" CACHE STRING "Choose the type of build." FORCE)
else ()
set(BF_VALID_BUILD_TYPE "debug;release")
string(TOLOWER ${CMAKE_BUILD_TYPE} BF_LOWER_BUILD_TYPE)
list(FIND BF_VALID_BUILD_TYPE ${BF_LOWER_BUILD_TYPE} BF_BUILD_TYPE_INDEX)
if (${BF_BUILD_TYPE_INDEX} EQUAL -1)
message(FATAL_ERROR "CMAKE_BUILD_TYPE must be either 'debug' or 'release' (default), not '${CMAKE_BUILD_TYPE}'")
endif ()
endif ()
# Ensure artefacts are moved to a common directory
file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/output/include/bpfilter)
file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/output/lib/pkgconfig)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/output/lib)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/output/lib)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/output/sbin)
add_library(bf_global_flags INTERFACE)
target_compile_options(bf_global_flags
INTERFACE
-std=gnu17 -Wall -Wextra -fPIC
$<$<CONFIG:debug>:-O0 -g3 -ggdb -fno-omit-frame-pointer -fsanitize=address -fsanitize=undefined>
$<$<CONFIG:release>:-O2>
)
target_include_directories(bf_global_flags
INTERFACE
${CMAKE_SOURCE_DIR}/src/external
)
target_link_options(bf_global_flags
INTERFACE
$<$<CONFIG:debug>:-fsanitize=address -fsanitize=undefined>
)
configure_file(
${CMAKE_SOURCE_DIR}/src/version.h.in
${CMAKE_BINARY_DIR}/include/version.h
@ONLY
)
add_subdirectory(src/core)
add_subdirectory(src/bpfilter)
add_subdirectory(src/libbpfilter)
add_subdirectory(src/bfcli)
if (NOT ${NO_DOCS})
add_subdirectory(doc)
endif ()
if (NOT ${NO_TESTS})
add_subdirectory(tests/harness)
add_subdirectory(tests/e2e)
add_subdirectory(tests/unit)
add_subdirectory(tests/integration)
endif ()
if (NOT ${NO_CHECKS})
add_subdirectory(tools/checks)
endif ()
if (NOT ${NO_BENCHMARKS})
add_subdirectory(tools/benchmarks)
endif ()
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