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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required(VERSION 3.12)
project(fluent-bit C)
# CMP0069 ensures that LTO is enabled for all compilers
cmake_policy(SET CMP0069 NEW)
set(CMAKE_POLICY_DEFAULT_CMP0069 NEW)
# Fluent Bit Version
set(FLB_VERSION_MAJOR 3)
set(FLB_VERSION_MINOR 2)
set(FLB_VERSION_PATCH 2)
set(FLB_VERSION_STR "${FLB_VERSION_MAJOR}.${FLB_VERSION_MINOR}.${FLB_VERSION_PATCH}")
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
# Define macro to identify Windows system (without Cygwin)
if(CMAKE_SYSTEM_NAME MATCHES "Windows")
set(FLB_SYSTEM_WINDOWS On)
add_definitions(-DFLB_SYSTEM_WINDOWS)
endif()
# Define macro to identify macOS system
if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
set(FLB_SYSTEM_MACOS On)
add_definitions(-DFLB_SYSTEM_MACOS)
endif()
# Define macro to identify Linux system
if(CMAKE_SYSTEM_NAME MATCHES "Linux")
set(FLB_SYSTEM_LINUX On)
add_definitions(-DFLB_SYSTEM_LINUX)
endif()
# Update CFLAGS
if (MSVC)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
add_definitions(-D_CRT_NONSTDC_NO_WARNINGS)
# Use custom CFLAGS for MSVC
#
# /Zi ...... Generate pdb files.
# /MT ...... Static link C runtimes.
# /wd4711 .. C4711 (function selected for inline expansion)
# /wd4100 .. C4100 (unreferenced formal parameter)
# /wd5045 .. C5045 (Spectre mitigation)
#
set(CMAKE_C_FLAGS "/DWIN32 /D_WINDOWS /DNDEBUG /O2 /Zi /wd4100 /wd4711 /wd5045")
set(CMAKE_EXE_LINKER_FLAGS "/Debug /INCREMENTAL:NO")
set(CMAKE_BUILD_TYPE None)
# Use add_compile_options() to set /MT since Visual Studio
# Generator does not notice /MT in CMAKE_C_FLAGS.
add_compile_options(/MT)
else()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
# The following flags are to enhance security, but it may impact performance,
# we disable them by default.
if (FLB_WASM_STACK_PROTECT)
if (WAMR_BUILD_TARGET MATCHES "X86_.*" OR WAMR_BUILD_TARGET STREQUAL "AMD_64")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ftrapv -D_FORTIFY_SOURCE=2")
endif ()
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector-strong --param ssp-buffer-size=4")
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wl,-z,noexecstack,-z,relro,-z,now")
endif()
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D__FLB_FILENAME__=__FILE__")
if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "armv7l")
set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -latomic")
set(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_LINK_FLAGS} -latomic")
endif()
if(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
set(FLB_SYSTEM_FREEBSD On)
add_definitions(-DFLB_SYSTEM_FREEBSD)
set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -lutil")
set(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_LINK_FLAGS} -lutil")
endif()
# *BSD is not supported platform for wasm-micro-runtime except for FreeBSD.
# Now, we should be disabled for these platforms.
if(NOT FLB_SYSTEM_FREEBSD AND ${CMAKE_SYSTEM_NAME} MATCHES "BSD")
message(STATUS "This platform is not supported for WASM feature so disabled.")
set(FLB_WASM OFF)
elseif(FLB_SYSTEM_FREEBSD)
message(STATUS "Some of FreeBSD environment do not work with hardware boundary check so disabled.")
set(WAMR_DISABLE_STACK_HW_BOUND_CHECK 1)
endif()
INCLUDE(TestBigEndian)
include(GNUInstallDirs)
include(ExternalProject)
include(cmake/FindJournald.cmake)
include(cmake/FindMonkey.cmake)
include(cmake/macros.cmake)
include(cmake/platform_feature_checks.cmake)
set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake/sanitizers-cmake/cmake" ${CMAKE_MODULE_PATH})
find_package(Sanitizers)
# Output paths
set(FLB_ROOT "${CMAKE_CURRENT_SOURCE_DIR}")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/bin")
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib")
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/library")
# Build Options
option(FLB_ALL "Enable all features" No)
option(FLB_DEBUG "Build with debug mode (-g)" Yes)
option(FLB_RELEASE "Build with release mode (-O2 -g -DNDEBUG)" No)
set(FLB_IPO "ReleaseOnly" CACHE STRING "Build with interprocedural optimization")
set_property(CACHE FLB_IPO PROPERTY STRINGS "On;Off;ReleaseOnly")
option(FLB_SMALL "Optimise for small size" No)
set(FLB_SECURITY "ReleaseOnly" CACHE STRING "Build with security optimizations")
set_property(CACHE FLB_SECURITY PROPERTY STRINGS "On;Off;ReleaseOnly")
option(FLB_COVERAGE "Build with code-coverage" No)
option(FLB_JEMALLOC "Build with Jemalloc support" No)
option(FLB_REGEX "Build with Regex support" Yes)
option(FLB_UTF8_ENCODER "Build with UTF8 encoding support" Yes)
option(FLB_PARSER "Build with Parser support" Yes)
option(FLB_TLS "Build with SSL/TLS support" Yes)
option(FLB_BINARY "Build executable binary" Yes)
option(FLB_EXAMPLES "Build examples" Yes)
option(FLB_SHARED_LIB "Build shared library" Yes)
option(FLB_VALGRIND "Enable Valgrind support" No)
option(FLB_TRACE "Enable trace mode" No)
option(FLB_CHUNK_TRACE "Enable chunk traces" Yes)
option(FLB_TESTS_RUNTIME "Enable runtime tests" No)
option(FLB_TESTS_INTERNAL "Enable internal tests" No)
option(FLB_TESTS_INTERNAL_FUZZ "Enable internal fuzz tests" No)
option(FLB_TESTS_OSSFUZZ "Enable OSS-Fuzz build" No)
option(FLB_MTRACE "Enable mtrace support" No)
option(FLB_POSIX_TLS "Force POSIX thread storage" No)
option(FLB_INOTIFY "Enable inotify support" Yes)
option(FLB_SQLDB "Enable SQL embedded DB" Yes)
option(FLB_HTTP_SERVER "Enable HTTP Server" Yes)
option(FLB_BACKTRACE "Enable stacktrace support" Yes)
option(FLB_LUAJIT "Enable Lua Scripting support" Yes)
option(FLB_RECORD_ACCESSOR "Enable record accessor" Yes)
option(FLB_SIGNV4 "Enable AWS Signv4 support" Yes)
option(FLB_AWS "Enable AWS support" Yes)
option(FLB_STATIC_CONF "Build binary using static configuration")
option(FLB_STREAM_PROCESSOR "Enable Stream Processor" Yes)
option(FLB_SIMD "Enable SIMD support" No)
option(FLB_CORO_STACK_SIZE "Set coroutine stack size")
option(FLB_AVRO_ENCODER "Build with Avro encoding support" No)
option(FLB_AWS_ERROR_REPORTER "Build with aws error reporting support" No)
option(FLB_ARROW "Build with Apache Arrow support" No)
option(FLB_WINDOWS_DEFAULTS "Build with predefined Windows settings" Yes)
option(FLB_WASM "Build with WASM runtime support" Yes)
option(FLB_WAMRC "Build with WASM AOT compiler executable" No)
option(FLB_WASM_STACK_PROTECT "Build with WASM runtime with strong stack protector flags" No)
option(FLB_ENFORCE_ALIGNMENT "Enable limited platform specific aligned memory access" No)
# Native Metrics Support (cmetrics)
option(FLB_METRICS "Enable metrics support" Yes)
# Native Profiules Support (cprofiles)
option(FLB_PROFILES "Enable profiles support" Yes)
# Proxy Plugins
option(FLB_PROXY_GO "Enable Go plugins support" Yes)
# Built-in Custom Plugins
option(FLB_CUSTOM_CALYPTIA "Enable Calyptia Support" Yes)
# Config formats
option(FLB_CONFIG_YAML "Enable YAML config format" Yes)
# List of plugins available and defaults for each option
include(cmake/plugins_options.cmake)
# Event loop backend (advanced users only)
# ----------------------------------------
# The following options are for advanced users only, they are used to enable
# specific event loop backends. By default, the build system will try to
# detect the best backend for the current Operating System. If you want to
# force a specific backend, you can use ONE of the following options.
#
# Note that these options will enable the proper option for Monkey library.
option(FLB_EVENT_LOOP_EPOLL "Enable epoll(2) event loop backend" No)
option(FLB_EVENT_LOOP_POLL "Enable poll(2) event loop backend" No)
option(FLB_EVENT_LOOP_KQUEUE "Enable kqueue(2) event loop backend" No)
option(FLB_EVENT_LOOP_SELECT "Enable select(2) event loop backend" No)
option(FLB_EVENT_LOOP_LIBEVENT "Enable libevent event loop backend" No)
# SIMD support
if(FLB_SIMD)
FLB_DEFINITION(FLB_HAVE_SIMD)
endif()
if(DEFINED FLB_NIGHTLY_BUILD AND NOT "${FLB_NIGHTLY_BUILD}" STREQUAL "")
FLB_DEFINITION_VAL(FLB_NIGHTLY_BUILD ${FLB_NIGHTLY_BUILD})
endif()
if(FLB_IN_STORAGE_BACKLOG)
FLB_DEFINITION(FLB_HAVE_IN_STORAGE_BACKLOG)
endif()
# Debug callbacks
option(FLB_HTTP_CLIENT_DEBUG "Enable HTTP Client debug callbacks" No)
# Run ldconfig on package post-install
option(FLB_RUN_LDCONFIG "Enable execution of ldconfig after installation" No)
# Prefer system libraries if available
option(FLB_PREFER_SYSTEM_LIBS "Prefer system libraries" No)
option(FLB_PREFER_SYSTEM_LIB_BACKTRACE "Prefer the libbacktrace system library" ${FLB_PREFER_SYSTEM_LIBS})
option(FLB_PREFER_SYSTEM_LIB_CARES "Prefer the libcares system library" ${FLB_PREFER_SYSTEM_LIBS})
option(FLB_PREFER_SYSTEM_LIB_JEMALLOC "Prefer the libjemalloc system library" ${FLB_PREFER_SYSTEM_LIBS})
option(FLB_PREFER_SYSTEM_LIB_KAFKA "Prefer the libkafka system library" ${FLB_PREFER_SYSTEM_LIBS})
option(FLB_PREFER_SYSTEM_LIB_LUAJIT "Prefer the libluajit system library" ${FLB_PREFER_SYSTEM_LIBS})
option(FLB_PREFER_SYSTEM_LIB_NGHTTP2 "Prefer the libnghttp2 system library" ${FLB_PREFER_SYSTEM_LIBS})
# Enable all features
if(FLB_ALL)
# Global
set(FLB_DEBUG 1)
set(FLB_TLS 1)
# Input plugins
set(FLB_IN_CPU 1)
set(FLB_IN_MEM 1)
set(FLB_IN_KMSG 1)
set(FLB_IN_MQTT 1)
set(FLB_IN_SERIAL 1)
set(FLB_IN_STDIN 1)
set(FLB_IN_HEAD 1)
set(FLB_IN_PROC 1)
set(FLB_IN_DISK 1)
set(FLB_IN_DUMMY 1)
set(FLB_IN_DUMMY_THREAD 1)
set(FLB_IN_NETIF 1)
set(FLB_IN_NGINX_STATUS 1)
set(FLB_IN_EXEC 1)
set(FLB_IN_UNIX_SOCKET 1)
# Output plugins
set(FLB_OUT_ES 1)
set(FLB_OUT_FORWARD 1)
set(FLB_OUT_GELF 1)
set(FLB_OUT_HTTP 1)
set(FLB_OUT_NATS 1)
set(FLB_OUT_NULL 1)
set(FLB_OUT_PLOT 1)
set(FLB_OUT_FILE 1)
set(FLB_OUT_RETRY 1)
set(FLB_OUT_TD 1)
set(FLB_OUT_STDOUT 1)
set(FLB_OUT_S3 1)
set(FLB_OUT_SYSLOG 1)
set(FLB_OUT_LIB 1)
set(FLB_OUT_FLOWCOUNTER 1)
set(FLB_OUT_WEBSOCKET 1)
endif()
if(FLB_DEV)
set(FLB_DEBUG On)
set(FLB_TRACE On)
set(FLB_CHUNK_TRACE On)
set(FLB_METRICS On)
set(FLB_PROFILES On)
set(FLB_IN_EVENT_TEST On)
set(FLB_HTTP_SERVER On)
set(FLB_HTTP_CLIENT_DEBUG On)
set(FLB_TESTS_INTERNAL On)
endif()
if(FLB_TRACE)
add_definitions(-DFLB_TRACE=1)
endif()
if(FLB_CHUNK_TRACE)
FLB_DEFINITION(FLB_HAVE_CHUNK_TRACE)
endif()
# SSL/TLS: add encryption support
if(FLB_OUT_TD)
set(FLB_TLS ON)
endif()
if(FLB_HTTP_CLIENT_DEBUG)
FLB_DEFINITION(FLB_HAVE_HTTP_CLIENT_DEBUG)
endif()
if (FLB_TESTS_OSSFUZZ)
FLB_DEFINITION(FLB_HAVE_TESTS_OSSFUZZ)
endif()
if (FLB_WASM)
# For Linking libedit adjustments on LLVM 15.
include(cmake/FindLibEdit.cmake)
endif()
# Set Fluent Bit dependency libraries path
include(cmake/libraries.cmake)
# Export headers provided by libraries/dependencies
include(cmake/headers.cmake)
# Tweak build targets for Windows
if(FLB_SYSTEM_WINDOWS)
include(cmake/windows-setup.cmake)
endif()
# Tweak build targets for macOS
if (FLB_SYSTEM_MACOS)
# build tweaks
include(cmake/macos-setup.cmake)
endif()
# Build for SystemZ - s390x arch
if (FLB_SYSTEM_LINUX)
include(cmake/s390x.cmake)
endif ()
# Extract Git commit information for debug output.
# Note that this is only set when cmake is run, the intent here is to use in CI for verification of releases so is acceptable.
# For a better solution see https://jonathanhamberg.com/post/cmake-embedding-git-hash/ but this is simple and easy.
find_package(Git)
# If we do not have Git or this is not a Git repo or another error this just is ignored and we have no output at runtime.
execute_process(COMMAND
"${GIT_EXECUTABLE}" -c log.showSignature=false log -1 --format=%H
WORKING_DIRECTORY "${FLB_ROOT}"
OUTPUT_VARIABLE FLB_GIT_HASH
ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
message(STATUS "Git hash: ${FLB_GIT_HASH}")
# Optional features like Stream Processor and Record Accessor needs Flex
# and Bison to generate it parsers.
find_package(FLEX 2)
find_package(BISON 3)
if(FLEX_FOUND AND BISON_FOUND)
set(FLB_FLEX_BISON 1)
endif()
if(FLB_SMALL)
if(CMAKE_COMPILER_IS_GNUCC)
set(strip_flag " -s ")
else()
set(strip_flag "")
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Os -g0 ${strip_flag} -fno-stack-protector -fomit-frame-pointer -DNDEBUG -U_FORTIFY_SOURCE")
endif()
if(FLB_COVERAGE)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 --coverage -fprofile-arcs -ftest-coverage")
set(CMAKE_BUILD_TYPE "Debug")
endif()
# Enable Debug symbols if specified
if(MSVC)
set(CMAKE_BUILD_TYPE None) # Avoid flag conflicts (See CMakeList.txt:L18)
elseif(FLB_RELEASE)
set(CMAKE_BUILD_TYPE "RelWithDebInfo")
elseif(FLB_DEBUG)
set(CMAKE_BUILD_TYPE "Debug")
endif()
if(FLB_IPO STREQUAL "On" OR (FLB_IPO STREQUAL "ReleaseOnly" AND FLB_RELEASE))
include(CheckIPOSupported)
check_ipo_supported(RESULT ipo_supported)
# IPO in GCC versions smaller v8 is broken
if(ipo_supported AND NOT (CMAKE_COMPILER_IS_GNUCC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 8))
set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
else()
message(Warning "IPO is not supported on this platform")
endif()
endif()
# Memory alignment enforcement
if(FLB_ENFORCE_ALIGNMENT)
FLB_DEFINITION(FLB_ENFORCE_ALIGNMENT)
endif()
# Harden release binary against security vulnerabilities
if(FLB_SECURITY STREQUAL "On" OR (FLB_SECURITY STREQUAL "ReleaseOnly" AND FLB_RELEASE))
if (NOT MSVC)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wl,-z,relro,-z,now")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wl,-z,noexecstack")
if(NOT FLB_SMALL)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fstack-protector")
# Fortify requires optimization
if(CMAKE_BUILD_TYPE STREQUAL "Release" OR CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_FORTIFY_SOURCE=1")
endif()
endif()
endif()
endif()
if(FLB_PARSER)
FLB_DEFINITION(FLB_HAVE_PARSER)
message(STATUS "Enabling FLB_REGEX since FLB_PARSER requires")
set(FLB_REGEX On)
endif()
# Is sanitize_address defined ?
if(SANITIZE_ADDRESS)
FLB_DEFINITION(FLB_HAVE_SANITIZE_ADDRESS)
endif()
# Record Accessor
if(FLB_RECORD_ACCESSOR)
if(NOT FLB_FLEX_BISON)
message(FATAL_ERROR
"Record Accessor feature requires Flex and Bison in your system.\n"
"This is a build time dependency, you can either install the "
"dependencies or disable the feature setting the CMake option "
"-DFLB_RECORD_ACCESSOR=Off ."
)
endif()
FLB_DEFINITION(FLB_HAVE_RECORD_ACCESSOR)
endif()
# Stream Processor
if(FLB_STREAM_PROCESSOR)
if(NOT FLB_FLEX_BISON)
message(FATAL_ERROR
"Stream Processor feature requires Flex and Bison in your system.\n"
"This is a build time dependency, you can either install the "
"dependencies or disable the feature setting the CMake option "
"-DFLB_STREAM_PROCESSOR=Off ."
)
endif()
# Enable Stream Processor internal helper plugin
set(FLB_IN_STREAM_PROCESSOR On)
FLB_DEFINITION(FLB_HAVE_STREAM_PROCESSOR)
endif()
# mk_core is aware about jemalloc usage, we need to disable this as
# fluent-bit do not use it.
set(WITH_SYSTEM_MALLOC 1 CACHE BOOL "Use system memory allocator")
# Headers: required headers by bundled libraries, this act as a helper for
# CFL, Ctraces, CMetrics, CProfiles and fluent-otel-proto
#
# Note: any check_c_source_compiles() cmake function might require this to
# work.
#
set(CMAKE_REQUIRED_INCLUDES
${FLB_PATH_ROOT_SOURCE}/${FLB_PATH_LIB_CFL}/include
${FLB_PATH_ROOT_SOURCE}/${FLB_PATH_LIB_FLUENT_OTEL}/include/
${FLB_PATH_ROOT_SOURCE}/${FLB_PATH_LIB_FLUENT_OTEL}/proto_c/
)
# CFL
add_subdirectory(${FLB_PATH_LIB_CFL} EXCLUDE_FROM_ALL)
# fluent-otel-proto
FLB_OPTION(FLUENT_PROTO_METRICS ON)
FLB_OPTION(FLUENT_PROTO_PROFILES ON)
add_subdirectory(${FLB_PATH_LIB_FLUENT_OTEL} EXCLUDE_FROM_ALL)
# MsgPack options
option(MSGPACK_ENABLE_CXX OFF)
option(MSGPACK_ENABLE_SHARED OFF)
option(MSGPACK_BUILD_TESTS OFF)
option(MSGPACK_BUILD_EXAMPLES OFF)
add_subdirectory(${FLB_PATH_LIB_MSGPACK} EXCLUDE_FROM_ALL)
# MPack
add_definitions(-DMPACK_EXTENSIONS=1)
add_subdirectory(${FLB_PATH_LIB_MPACK} EXCLUDE_FROM_ALL)
# Miniz (zip)
add_subdirectory(${FLB_PATH_LIB_MINIZ} EXCLUDE_FROM_ALL)
# ring buffer library
add_subdirectory(${FLB_PATH_LIB_RING_BUFFER} EXCLUDE_FROM_ALL)
# Avro
if(FLB_AVRO_ENCODER)
# jansson
option(JANSSON_BUILD_DOCS OFF)
option(JANSSON_EXAMPLES OFF)
option(JANSSON_WITHOUT_TESTS ON)
option(JANSSON_BUILD_SHARED_LIBS OFF)
add_subdirectory(${FLB_PATH_LIB_JANSSON})
#avro
add_subdirectory(${FLB_PATH_LIB_AVRO} EXCLUDE_FROM_ALL)
endif()
# tutf8e
if(FLB_UTF8_ENCODER)
add_subdirectory(${FLB_PATH_LIB_TUTF8E} EXCLUDE_FROM_ALL)
endif()
# snappy
add_subdirectory(${FLB_PATH_LIB_SNAPPY} EXCLUDE_FROM_ALL)
# CMetrics
add_subdirectory(${FLB_PATH_LIB_CMETRICS} EXCLUDE_FROM_ALL)
# CTraces
add_subdirectory(${FLB_PATH_LIB_CTRACES} EXCLUDE_FROM_ALL)
# CProfiles
add_subdirectory(${FLB_PATH_LIB_CPROFILES} EXCLUDE_FROM_ALL)
# Nghttp2 options
if(FLB_PREFER_SYSTEM_LIB_NGHTTP2)
find_package(PkgConfig)
pkg_check_modules(NGHTTP2 libnghttp2>=1.0.0)
endif()
if(NGHTTP2_FOUND)
include_directories(${NGHTTP2_INCLUDE_DIRS})
link_directories(${NGHTTP2_LIBRARY_DIRS})
else()
include(cmake/nghttp2.cmake)
endif()
# C-Ares (DNS library)
if(FLB_PREFER_SYSTEM_LIB_CARES)
find_package(PkgConfig)
pkg_check_modules(LIBCARES libcares>=1.18.0)
endif()
if(LIBCARES_FOUND)
include_directories(${LIBCARES_INCLUDE_DIRS})
link_directories(${LIBCARES_LIBRARY_DIRS})
else()
include(cmake/cares.cmake)
endif()
# Chunk I/O
FLB_OPTION(CIO_LIB_STATIC ON)
FLB_OPTION(CIO_LIB_SHARED OFF)
add_subdirectory(${FLB_PATH_LIB_CHUNKIO} EXCLUDE_FROM_ALL)
# Lib: build the core libraries used by Fluent-Bit
FLB_DEFINITION(JSMN_PARENT_LINKS)
FLB_DEFINITION(JSMN_STRICT)
add_subdirectory(${FLB_PATH_LIB_JSMN})
# Runtime Tests (filter_kubernetes) requires HTTP Server
if(FLB_TESTS_RUNTIME)
FLB_OPTION(FLB_HTTP_SERVER ON)
endif()
# Monkey Core Library
macro(MK_SET_OPTION option value)
set(${option} ${value} CACHE INTERNAL "" FORCE)
endmacro()
MK_SET_OPTION(MK_SYSTEM_MALLOC ON)
MK_SET_OPTION(MK_DEBUG ON)
# Monkey backend event loop
if (FLB_EVENT_LOOP_EPOLL)
MK_SET_OPTION(MK_EVENT_LOOP_EPOLL ON)
FLB_DEFINITION(FLB_EVENT_LOOP_EPOLL)
message(STATUS "FLB Event loop backend > epoll(2)")
elseif (FLB_EVENT_LOOP_POLL)
MK_SET_OPTION(MK_EVENT_LOOP_POLL ON)
FLB_DEFINITION(FLB_EVENT_LOOP_POLL)
message(STATUS "FLB Event loop backend > poll(2)")
elseif (FLB_EVENT_LOOP_KQUEUE)
MK_SET_OPTION(MK_EVENT_LOOP_KQUEUE ON)
FLB_DEFINITION(FLB_EVENT_LOOP_KQUEUE)
message(STATUS "FLB Event loop backend > kqueue(2)")
elseif (FLB_EVENT_LOOP_SELECT)
MK_SET_OPTION(MK_EVENT_LOOP_SELECT ON)
FLB_DEFINITION(FLB_EVENT_LOOP_SELECT)
message(STATUS "FLB Event loop backend > select(2)")
elseif (FLB_EVENT_LOOP_LIBEVENT)
MK_SET_OPTION(MK_EVENT_LOOP_LIBEVENT ON)
FLB_DEFINITION(FLB_EVENT_LOOP_LIBEVENT)
message(STATUS "FLB Event loop backend > libevent")
else()
FLB_DEFINITION(FLB_EVENT_LOOP_AUTO_DISCOVERY)
message(STATUS "FLB Event loop backend > auto discovery (Monkey library)")
endif()
# Build Monkey HTTP Server
if(FLB_HTTP_SERVER)
add_subdirectory(${FLB_PATH_LIB_MONKEY} EXCLUDE_FROM_ALL)
else()
add_subdirectory(${FLB_PATH_LIB_MONKEY}/mk_core EXCLUDE_FROM_ALL)
endif()
if(FLB_TLS)
FLB_DEFINITION(FLB_HAVE_TLS)
option(ENABLE_TESTING OFF)
option(ENABLE_PROGRAMS OFF)
option(INSTALL_MBEDTLS_HEADERS OFF)
# Link OpenSSL statically on Windows.
if (FLB_SYSTEM_WINDOWS)
set(OPENSSL_USE_STATIC_LIBS ON)
set(OPENSSL_MSVC_STATIC_RT ON)
endif()
# find OpenSSL (our preferred choice now)
find_package(OpenSSL)
if(OPENSSL_FOUND)
FLB_DEFINITION(FLB_HAVE_OPENSSL)
endif()
if (FLB_SYSTEM_WINDOWS AND NOT(OPENSSL_FOUND))
# win32 builds w/o openssl will fail later so we might as well catch it
# early instead.
MESSAGE(FATAL_ERROR "OpenSSL required on Windows, see DEVELOPER_GUIDE.md")
endif()
endif()
# Metrics
if(FLB_METRICS)
FLB_DEFINITION(FLB_HAVE_METRICS)
endif()
# Profiles
if(FLB_PROFILES)
FLB_DEFINITION(FLB_HAVE_PROFILES)
endif()
# WASM
if(FLB_WASM)
if (FLB_SYSTEM_LINUX)
check_c_source_compiles("
#include <stdatomic.h>
int main() {
_Atomic int a;
return 0;
}" FLB_HAVE_STDATOMIC_H)
include(CheckIncludeFiles)
check_include_files(stdatomic.h FLB_HAVE_STDATOMIC_H)
if (FLB_HAVE_STDATOMIC_H)
enable_language (ASM)
FLB_DEFINITION(FLB_HAVE_WASM)
else ()
message(STATUS "This platform does not provide stdatomic.h that is needed for the FLB_WASM feature so disabled.")
set(FLB_WASM OFF)
endif ()
else ()
enable_language (ASM)
FLB_DEFINITION(FLB_HAVE_WASM)
endif ()
endif()
# AWS
if (FLB_AWS)
FLB_DEFINITION(FLB_HAVE_AWS)
# Support for credential_process in the AWS config file is currently Linux-only.
# The current implementation might work for other Unix systems, but would require
# further testing to confirm.
# Spawning a sub-process in Windows is very different and will require its own
# implementation.
if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
FLB_OPTION(FLB_HAVE_AWS_CREDENTIAL_PROCESS ON)
FLB_DEFINITION(FLB_HAVE_AWS_CREDENTIAL_PROCESS)
else()
FLB_OPTION(FLB_HAVE_AWS_CREDENTIAL_PROCESS OFF)
endif()
endif()
if (FLB_AWS_ERROR_REPORTER)
FLB_DEFINITION(FLB_HAVE_AWS_ERROR_REPORTER)
endif()
# Signv4
if (FLB_SIGNV4)
FLB_DEFINITION(FLB_HAVE_SIGNV4)
endif()
if(FLB_SQLDB)
FLB_DEFINITION(FLB_HAVE_SQLDB)
add_subdirectory(${FLB_PATH_LIB_SQLITE})
endif()
if(FLB_TRACE)
FLB_DEFINITION(FLB_HAVE_TRACE)
endif()
# Disable colors and any other control characters in the output
if (FLB_LOG_NO_CONTROL_CHARS)
FLB_DEFINITION(FLB_LOG_NO_CONTROL_CHARS)
endif()
if(FLB_HTTP_SERVER)
FLB_OPTION(FLB_METRICS ON)
FLB_DEFINITION(FLB_HAVE_METRICS)
FLB_DEFINITION(FLB_HAVE_HTTP_SERVER)
endif()
if(NOT TARGET co)
add_subdirectory(${FLB_PATH_LIB_CO})
endif()
if(NOT TARGET rbtree)
add_subdirectory(${FLB_PATH_LIB_RBTREE})
endif()
# Systemd Journald support
if(JOURNALD_FOUND)
FLB_DEFINITION(FLB_HAVE_SYSTEMD)
check_c_source_compiles("
#include <systemd/sd-bus.h>
int main() {
return 0;
}" FLB_HAVE_SYSTEMD_SDBUS)
if(FLB_HAVE_SYSTEMD_SDBUS)
FLB_DEFINITION(FLB_HAVE_SYSTEMD_SDBUS)
endif()
else()
FLB_OPTION(FLB_IN_SYSTEMD OFF)
endif()
# Valgrind support
check_c_source_compiles("
#include <valgrind/valgrind.h>
int main() {
return 0;
}" FLB_HAVE_VALGRIND)
if(FLB_VALGRIND OR FLB_HAVE_VALGRIND)
FLB_DEFINITION(FLB_HAVE_VALGRIND)
endif()
# fork(2) support
check_c_source_compiles("
#include <unistd.h>
int main() {
fork();
return 0;
}" FLB_HAVE_FORK)
if(FLB_HAVE_FORK)
FLB_DEFINITION(FLB_HAVE_FORK)
endif()
# mtrace support
if(FLB_MTRACE)
check_c_source_compiles("
#include <mcheck.h>
int main() {
return 0;
}" FLB_HAVE_MTRACE)
if(FLB_HAVE_MTRACE AND FLB_DEBUG)
FLB_DEFINITION(FLB_HAVE_MTRACE)
endif()
endif()
# timespec_get() support
check_c_source_compiles("
#include <time.h>
int main() {
struct tm tm;
return timespec_get(&tm, TIME_UTC);
}" FLB_HAVE_TIMESPEC_GET)
if(FLB_HAVE_TIMESPEC_GET)
FLB_DEFINITION(FLB_HAVE_TIMESPEC_GET)
endif()
# gmtoff support
check_c_source_compiles("
#include <time.h>
int main() {
struct tm tm;
tm.tm_gmtoff = 0;
return 0;
}" FLB_HAVE_GMTOFF)
if(FLB_HAVE_GMTOFF)
FLB_DEFINITION(FLB_HAVE_GMTOFF)
endif()
# clock_get_time() support for macOS.
check_c_source_compiles("
#include <mach/clock.h>
#include <mach/mach.h>
int main() {
clock_serv_t cclock;
mach_timespec_t mts;
host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
clock_get_time(cclock, &mts);
return mach_port_deallocate(mach_task_self(), cclock);
}" FLB_HAVE_CLOCK_GET_TIME)
if(FLB_HAVE_CLOCK_GET_TIME)
FLB_DEFINITION(FLB_HAVE_CLOCK_GET_TIME)
endif()
# unix socket support
check_c_source_compiles("
#include <unistd.h>
#include <sys/un.h>
#include <sys/types.h>
#include <sys/socket.h>
int main() {
int sock;
sock = socket(AF_UNIX, SOCK_STREAM, 0);
close(sock);
return 0;
}" FLB_HAVE_UNIX_SOCKET)
if(FLB_HAVE_UNIX_SOCKET)
FLB_DEFINITION(FLB_HAVE_UNIX_SOCKET)
endif()
# byte order detection
test_big_endian(BIG_ENDIAN_SYSTEM_DETECTED)
if (BIG_ENDIAN_SYSTEM_DETECTED)
FLB_DEFINITION(FLB_HAVE_BIG_ENDIAN_SYSTEM)
else()
FLB_DEFINITION(FLB_HAVE_LITTLE_ENDIAN_SYSTEM)
endif ()
# Configuration file YAML format support
if(FLB_CONFIG_YAML)
find_package(PkgConfig)
# libyaml's corresponding pkg-config file is yaml-0.1.pc.
# We should search it first.
pkg_check_modules(LIBYAML QUIET yaml-0.1)
if (LIBYAML_FOUND)
# For if(FLB_HAVE_LIBYAML) clause on CMakeList.txt.
set(FLB_HAVE_LIBYAML 1)
FLB_DEFINITION(FLB_HAVE_LIBYAML)
# For non-standard libyaml installation paths such as homebrew bottled libyaml.
include_directories(${LIBYAML_INCLUDEDIR})
link_directories(${LIBYAML_LIBRARY_DIRS})
else()
if (FLB_LIBYAML_DIR)
set(LIBYAML_LIBRARY_DIRS "${FLB_LIBYAML_DIR}/lib")
set(LIBYAML_INCLUDEDIR "${FLB_LIBYAML_DIR}/include")
message(STATUS "specified libyaml dir: ${FLB_LIBYAML_DIR}")
if (MSVC)
FLB_DEFINITION(YAML_DECLARE_STATIC)
endif ()
set(FLB_HAVE_LIBYAML 1)
FLB_DEFINITION(FLB_HAVE_LIBYAML)
include_directories(${LIBYAML_INCLUDEDIR})
link_directories(${LIBYAML_LIBRARY_DIRS})
else ()
# Requires libyaml support
check_c_source_compiles("
#include <yaml.h>
int main() {
yaml_parser_t parser;
return 0;
}" FLB_HAVE_LIBYAML)
if(NOT FLB_HAVE_LIBYAML)
message(FATAL_ERROR
"YAML development dependencies required for YAML configuration format handling.\n"
"This is a build time dependency, you can either install the "
"dependencies or disable the feature setting the CMake option "
"-DFLB_CONFIG_YAML=Off ."
)
endif()
endif ()
FLB_DEFINITION(FLB_HAVE_LIBYAML)
endif()
endif()
# check attribute alloc_size
check_c_source_compiles("
#include <stdlib.h>
__attribute__ ((alloc_size(1, 2))) static void* f(size_t a, size_t b) {
return calloc(a, b);
}
int main() {
f(1, 2);
return 0;
}
" FLB_HAVE_ATTRIBUTE_ALLOC_SIZE)
if(FLB_HAVE_ATTRIBUTE_ALLOC_SIZE)
FLB_DEFINITION(FLB_HAVE_ATTRIBUTE_ALLOC_SIZE)
endif()
# parameters for flb_msgpack_raw_to_json_sds buffer strategy
if (NOT DEFINED FLB_MSGPACK_TO_JSON_INIT_BUFFER_SIZE)
FLB_DEFINITION_VAL(FLB_MSGPACK_TO_JSON_INIT_BUFFER_SIZE 2.0)
else()
FLB_DEFINITION_VAL(FLB_MSGPACK_TO_JSON_INIT_BUFFER_SIZE ${FLB_MSGPACK_TO_JSON_INIT_BUFFER_SIZE})
endif()
if (NOT DEFINED FLB_MSGPACK_TO_JSON_REALLOC_BUFFER_SIZE)
FLB_DEFINITION_VAL(FLB_MSGPACK_TO_JSON_REALLOC_BUFFER_SIZE 0.10)
else()
FLB_DEFINITION_VAL(FLB_MSGPACK_TO_JSON_REALLOC_BUFFER_SIZE ${FLB_MSGPACK_TO_JSON_REALLOC_BUFFER_SIZE})
endif()
# Build tools/xxd-c
add_subdirectory(tools/xxd-c)
# Static configuration generator (using xxd-c)
if(FLB_STATIC_CONF)
FLB_DEFINITION(FLB_HAVE_STATIC_CONF)
add_subdirectory(gen_static_conf)
endif()
# Special definition to set the coroutine stack size
if(FLB_CORO_STACK_SIZE)
add_definitions(-DFLB_CORO_STACK_SIZE=${FLB_CORO_STACK_SIZE})
set(FLB_BUILD_FLAGS "${FLB_BUILD_FLAGS}#ifndef FLB_CORO_STACK_SIZE\n#define FLB_CORO_STACK_SIZE ${FLB_CORO_STACK_SIZE}\n#endif\n")
else()
endif()
set(FLB_PROG_NAME "Fluent Bit")
set(FLB_OUT_NAME "fluent-bit")
if(FLB_PROXY_GO)
FLB_DEFINITION(FLB_HAVE_PROXY_GO)
endif()
if("${GNU_HOST}" STREQUAL "")
set(AUTOCONF_HOST_OPT "")
else()
set(AUTOCONF_HOST_OPT "--host=${GNU_HOST}")
endif()
if(CMAKE_GENERATOR MATCHES "Ninja")
if(FLB_SYSTEM_WINDOWS)
MESSAGE(FATAL_ERROR "Building with Ninja is not supported on Windows")
else()
set(EXTERNAL_BUILD_TOOL "make")
endif()
else()
set(EXTERNAL_BUILD_TOOL "$(MAKE)")
endif()
# Memory Allocator
# ================
if(FLB_JEMALLOC AND ${CMAKE_SYSTEM_NAME} MATCHES "Linux")
if(FLB_PREFER_SYSTEM_LIB_JEMALLOC)
find_package(PkgConfig)
pkg_check_modules(JEMALLOC jemalloc>=5.0.0)
endif()
if(JEMALLOC_FOUND)
include_directories(${JEMALLOC_INCLUDE_DIRS})
link_directories(${JEMALLOC_LIBRARY_DIRS})
else()
FLB_DEFINITION(JEMALLOC_MANGLE)
# Add support for options like page size, if empty we default it
if(NOT DEFINED FLB_JEMALLOC_OPTIONS OR "${FLB_JEMALLOC_OPTIONS}" STREQUAL "")
set(FLB_JEMALLOC_OPTIONS "--with-lg-quantum=3")
endif()
# Split into a list so CMake handles it correctly when passing to configure command
separate_arguments(FLB_JEMALLOC_OPTIONS_LIST UNIX_COMMAND ${FLB_JEMALLOC_OPTIONS})
message(STATUS "jemalloc configure: ${FLB_JEMALLOC_OPTIONS_LIST}")
# Link to Jemalloc as an external dependency
set(FLB_LIBJEMALLOC_PATH "${CMAKE_CURRENT_BINARY_DIR}/lib/libjemalloc_pic.a")
ExternalProject_Add(jemalloc
SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/lib/jemalloc-5.3.0
CONFIGURE_COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/lib/jemalloc-5.3.0/configure ${AUTOCONF_HOST_OPT} "${FLB_JEMALLOC_OPTIONS_LIST}" --prefix=<INSTALL_DIR>
CFLAGS=-std=gnu99\ -Wall\ -pipe\ -g3\ -O3\ -funroll-loops
BUILD_COMMAND ${EXTERNAL_BUILD_TOOL}
BUILD_BYPRODUCTS ${FLB_LIBJEMALLOC_PATH}
INSTALL_DIR ${CMAKE_CURRENT_BINARY_DIR}/
INSTALL_COMMAND ${EXTERNAL_BUILD_TOOL} install_lib_static install_include)
add_library(libjemalloc STATIC IMPORTED GLOBAL)
set_target_properties(libjemalloc PROPERTIES IMPORTED_LOCATION ${FLB_LIBJEMALLOC_PATH})
add_dependencies(libjemalloc jemalloc)
include_directories("${CMAKE_BINARY_DIR}/include/")
set(JEMALLOC_LIBRARIES "libjemalloc")
endif()
FLB_DEFINITION(FLB_HAVE_JEMALLOC)
else()
FLB_OPTION(FLB_JEMALLOC OFF)
endif()
# LibBacktrace (friendly stacktrace support)
# =========================================
if(FLB_BACKTRACE)
if(FLB_PREFER_SYSTEM_LIB_BACKTRACE)
find_path(LIBBACKTRACE_INCLUDE_DIRS NAMES backtrace.h)
find_library(LIBBACKTRACE_LIBRARIES NAMES backtrace)
endif()
if(LIBBACKTRACE_INCLUDE_DIRS AND LIBBACKTRACE_LIBRARIES)
message(STATUS "libbacktrace found (${LIBBACKTRACE_LIBRARIES})")
include_directories(${LIBBACKTRACE_INCLUDE_DIRS})
link_directories(${LIBBACKTRACE_LIBRARY_DIRS})
else()
message(STATUS "libbacktrace not found, building ourselves")
if (CMAKE_OSX_SYSROOT)
# From macOS Mojave, /usr/include does not store C SDK headers.
# For libbacktrace building on macOS, we have to tell C headers where they are located.
set(DEPS_C_COMPILER "${CMAKE_C_COMPILER} -isysroot ${CMAKE_OSX_SYSROOT}")
else()
set(DEPS_C_COMPILER "${CMAKE_C_COMPILER}")
endif()
set(FLB_LIBBACKTRACE_PATH "${CMAKE_CURRENT_BINARY_DIR}/backtrace-prefix/lib/libbacktrace.a")
ExternalProject_Add(backtrace
SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/lib/libbacktrace-8602fda/
CONFIGURE_COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/lib/libbacktrace-8602fda/configure ${AUTOCONF_HOST_OPT} --prefix=<INSTALL_DIR> --enable-shared=no --enable-static=yes
BUILD_COMMAND ${EXTERNAL_BUILD_TOOL}
BUILD_BYPRODUCTS ${FLB_LIBBACKTRACE_PATH}
INSTALL_COMMAND ${EXTERNAL_BUILD_TOOL} DESTDIR= install
)
add_library(libbacktrace STATIC IMPORTED GLOBAL)
set_target_properties(libbacktrace PROPERTIES IMPORTED_LOCATION ${FLB_LIBBACKTRACE_PATH})