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|
################################################################################
#
# The main toxcore CMake build file.
#
# This file when processed with cmake produces:
# - A number of small libraries (.a/.so/...) containing independent components
# of toxcore. E.g. the DHT has its own library, and the system/network
# abstractions are in their own library as well. These libraries are not
# installed on `make install`. The toxav, and toxencryptsave libraries are
# also not installed.
# - A number of small programs, statically linked if possible.
# - One big library containing all of the toxcore, toxav, and toxencryptsave
# code.
#
################################################################################
cmake_minimum_required(VERSION 2.8.12)
cmake_policy(VERSION 2.8.12)
project(toxcore)
set(CMAKE_MODULE_PATH ${toxcore_SOURCE_DIR}/cmake)
################################################################################
#
# :: Version management
#
################################################################################
# This version is for the entire project. All libraries (core, av, ...) move in
# versions in a synchronised way.
set(PROJECT_VERSION_MAJOR "0")
set(PROJECT_VERSION_MINOR "2")
set(PROJECT_VERSION_PATCH "2")
set(PROJECT_VERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}")
# set .so library version / following libtool scheme
# https://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
file(STRINGS ${toxcore_SOURCE_DIR}/so.version SOVERSION_CURRENT REGEX "^CURRENT=[0-9]+$")
string(SUBSTRING "${SOVERSION_CURRENT}" 8 -1 SOVERSION_CURRENT)
file(STRINGS ${toxcore_SOURCE_DIR}/so.version SOVERSION_REVISION REGEX "^REVISION=[0-9]+$")
string(SUBSTRING "${SOVERSION_REVISION}" 9 -1 SOVERSION_REVISION)
file(STRINGS ${toxcore_SOURCE_DIR}/so.version SOVERSION_AGE REGEX "^AGE=[0-9]+$")
string(SUBSTRING "${SOVERSION_AGE}" 4 -1 SOVERSION_AGE)
# account for some libtool magic, see other/version-sync script for details
math(EXPR SOVERSION_MAJOR ${SOVERSION_CURRENT}-${SOVERSION_AGE})
set(SOVERSION "${SOVERSION_MAJOR}.${SOVERSION_AGE}.${SOVERSION_REVISION}")
message("SOVERSION: ${SOVERSION}")
################################################################################
#
# :: Dependencies and configuration
#
################################################################################
include(AddCompilerFlag)
include(ApiDsl)
include(ModulePackage)
include(StrictAbi)
include(GNUInstallDirs)
if(APPLE)
include(MacRpath)
endif()
if(UNIX)
if(CMAKE_SYSTEM_NAME MATCHES ".*Linux")
set(LINUX TRUE)
elseif(CMAKE_SYSTEM_NAME MATCHES "kOpenBSD.*|OpenBSD.*")
set(OPENBSD TRUE)
elseif(CMAKE_SYSTEM_NAME MATCHES "kNetBSD.*|NetBSD.*")
set(NETBSD TRUE)
elseif(CMAKE_SYSTEM_NAME MATCHES "kFreeBSD.*|FreeBSD")
set(FREEBSD TRUE)
endif()
endif()
enable_testing()
set(CMAKE_MACOSX_RPATH ON)
if(${CMAKE_VERSION} VERSION_LESS "3.1.0")
add_cflag("-std=c99")
add_cxxflag("-std=c++11")
else()
# Set standard version for compiler.
set(CMAKE_C_STANDARD 99)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_C_EXTENSIONS OFF)
set(CMAKE_CXX_EXTENSIONS OFF)
message(STATUS "Supported C compiler features = ${CMAKE_C_COMPILE_FEATURES}")
message(STATUS "Supported C++ compiler features = ${CMAKE_CXX_COMPILE_FEATURES}")
endif()
if(NOT MSVC)
# Warn on non-ISO C.
add_cflag("-pedantic")
option(ERROR_ON_WARNING "Make compilation error on a warning" OFF)
if(ERROR_ON_WARNING)
add_flag("-Werror")
endif()
option(COVERAGE "Track code coverage" OFF)
if(COVERAGE)
add_flag("-fprofile-instr-generate")
add_flag("-fcoverage-mapping")
endif()
option(DEBUG "Enable assertions and other debugging facilities" OFF)
if(DEBUG)
set(MIN_LOGGER_LEVEL DEBUG)
add_cflag("-g3")
if(MINGW)
# Allows wine to display source code file names and line numbers on crash in its backtrace
add_flag("-gdwarf-2")
endif()
endif()
option(WARNINGS "Enable additional compiler warnings" ON)
if(WARNINGS)
# Add all warning flags we can.
add_flag("-Wall")
add_flag("-Wextra")
add_flag("-Weverything")
# Disable specific warning flags for both C and C++.
# TODO(iphydf): Clean these up. Probably all of these are actual bugs.
add_flag("-Wno-cast-align")
# Very verbose, not very useful. This warns about things like int -> uint
# conversions that change sign without a cast and narrowing conversions.
add_flag("-Wno-conversion")
# TODO(iphydf): Check enum values when received from the user, then assume
# correctness and remove this suppression.
add_flag("-Wno-covered-switch-default")
# Due to clang's tolower() macro being recursive
# https://github.com/TokTok/c-toxcore/pull/481
add_flag("-Wno-disabled-macro-expansion")
# We don't put __attribute__ on the public API.
add_flag("-Wno-documentation-deprecated-sync")
# Bootstrap daemon does this.
add_flag("-Wno-format-nonliteral")
# struct Foo foo = {0}; is a common idiom.
add_flag("-Wno-missing-field-initializers")
# Useful sometimes, but we accept padding in structs for clarity.
# Reordering fields to avoid padding will reduce readability.
add_flag("-Wno-padded")
# This warns on things like _XOPEN_SOURCE, which we currently need (we
# probably won't need these in the future).
add_flag("-Wno-reserved-id-macro")
# TODO(iphydf): Clean these up. They are likely not bugs, but still
# potential issues and probably confusing.
add_flag("-Wno-sign-compare")
# Our use of mutexes results in a false positive, see 1bbe446.
add_flag("-Wno-thread-safety-analysis")
# File transfer code has this.
add_flag("-Wno-type-limits")
# Callbacks often don't use all their parameters.
add_flag("-Wno-unused-parameter")
# libvpx uses __attribute__((unused)) for "potentially unused" static
# functions to avoid unused static function warnings.
add_flag("-Wno-used-but-marked-unused")
# We use variable length arrays a lot.
add_flag("-Wno-vla")
# Disable specific warning flags for C++.
# Comma at end of enum is supported everywhere we run.
add_cxxflag("-Wno-c++98-compat-pedantic")
# TODO(iphydf): Stop using flexible array members.
add_cxxflag("-Wno-c99-extensions")
# We're C-compatible, so use C style casts.
add_cxxflag("-Wno-old-style-cast")
# Downgrade to warning so we still see it.
add_flag("-Wno-error=unused-variable")
endif()
endif()
option(TRACE "Enable TRACE level logging (expensive, for network debugging)" OFF)
if(TRACE)
set(MIN_LOGGER_LEVEL TRACE)
endif()
if(MIN_LOGGER_LEVEL)
add_definitions(-DMIN_LOGGER_LEVEL=LOG_${MIN_LOGGER_LEVEL})
endif()
option(ASAN "Enable address-sanitizer to detect invalid memory accesses" OFF)
if(ASAN)
set(SAFE_CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
set(CMAKE_REQUIRED_LIBRARIES "-fsanitize=address")
add_cflag("-fsanitize=address")
set(CMAKE_REQUIRED_LIBRARIES "${SAFE_CMAKE_REQUIRED_LIBRARIES}")
else()
# Forbid undefined symbols in shared libraries. This is incompatible with
# asan, so it's in the else branch here.
if(LINUX)
add_dllflag("-Wl,-z,defs")
else()
add_dllflag("-undefined error")
endif()
endif()
option(USE_IPV6 "Use IPv6 in tests" ON)
if(NOT USE_IPV6)
add_definitions(-DUSE_IPV6=0)
endif()
option(USE_STDERR_LOGGER "Enable logging to stderr when the logger is NULL" OFF)
if(USE_STDERR_LOGGER)
add_definitions(-DUSE_STDERR_LOGGER=1)
endif()
option(BUILD_TOXAV "Whether to build the tox AV library" ON)
option(MUST_BUILD_TOXAV "Fail the build if toxav cannot be built" OFF)
include(Dependencies)
if(MUST_BUILD_TOXAV)
set(NO_TOXAV_ERROR_TYPE SEND_ERROR)
else()
set(NO_TOXAV_ERROR_TYPE WARNING)
endif()
if(BUILD_TOXAV)
if(NOT OPUS_FOUND)
message(${NO_TOXAV_ERROR_TYPE} "Option BUILD_TOXAV is enabled but required library OPUS was not found.")
set(BUILD_TOXAV OFF)
endif()
if(NOT VPX_FOUND)
message(${NO_TOXAV_ERROR_TYPE} "Option BUILD_TOXAV is enabled but required library VPX was not found.")
set(BUILD_TOXAV OFF)
endif()
endif()
################################################################################
#
# :: Tox Core Library
#
################################################################################
# toxcore_PKGCONFIG_LIBS is what's added to the Libs: line in toxcore.pc. It
# needs to contain all the libraries a program using toxcore should link against
# if it's statically linked. If it's dynamically linked, there is no need to
# explicitly link against all the dependencies, but it doesn't harm much(*)
# either.
#
# (*) It allows client code to use symbols from our dependencies without
# explicitly linking against them.
set(toxcore_PKGCONFIG_LIBS)
# Requires: in pkg-config file.
set(toxcore_PKGCONFIG_REQUIRES)
# LAYER 1: Crypto core
# --------------------
apidsl(toxcore/crypto_core.api.h)
set(toxcore_SOURCES ${toxcore_SOURCES}
toxcore/ccompat.h
toxcore/crypto_core.c
toxcore/crypto_core.h
toxcore/crypto_core_mem.c)
include(CheckFunctionExists)
check_function_exists(explicit_bzero HAVE_EXPLICIT_BZERO)
check_function_exists(memset_s HAVE_MEMSET_S)
set(toxcore_LINK_MODULES ${toxcore_LINK_MODULES} ${LIBSODIUM_LIBRARIES})
set(toxcore_PKGCONFIG_REQUIRES ${toxcore_PKGCONFIG_REQUIRES} libsodium)
# LAYER 2: Basic networking
# -------------------------
set(toxcore_SOURCES ${toxcore_SOURCES}
toxcore/logger.c
toxcore/logger.h
toxcore/network.c
toxcore/network.h
toxcore/util.c
toxcore/util.h)
# LAYER 3: Distributed Hash Table
# -------------------------------
apidsl(toxcore/LAN_discovery.api.h)
apidsl(toxcore/ping.api.h)
apidsl(toxcore/ping_array.api.h)
set(toxcore_SOURCES ${toxcore_SOURCES}
toxcore/DHT.c
toxcore/DHT.h
toxcore/LAN_discovery.c
toxcore/LAN_discovery.h
toxcore/ping.c
toxcore/ping.h
toxcore/ping_array.c
toxcore/ping_array.h)
# LAYER 4: Onion routing, TCP connections, crypto connections
# -----------------------------------------------------------
set(toxcore_SOURCES ${toxcore_SOURCES}
toxcore/TCP_client.c
toxcore/TCP_client.h
toxcore/TCP_connection.c
toxcore/TCP_connection.h
toxcore/TCP_server.c
toxcore/TCP_server.h
toxcore/list.c
toxcore/list.h
toxcore/net_crypto.c
toxcore/net_crypto.h
toxcore/onion.c
toxcore/onion.h
toxcore/onion_announce.c
toxcore/onion_announce.h
toxcore/onion_client.c
toxcore/onion_client.h)
# LAYER 5: Friend requests and connections
# ----------------------------------------
set(toxcore_SOURCES ${toxcore_SOURCES}
toxcore/friend_connection.c
toxcore/friend_connection.h
toxcore/friend_requests.c
toxcore/friend_requests.h)
# LAYER 6: Tox messenger
# ----------------------
set(toxcore_SOURCES ${toxcore_SOURCES}
toxcore/Messenger.c
toxcore/Messenger.h)
# LAYER 7: Group chats
# --------------------
set(toxcore_SOURCES ${toxcore_SOURCES}
toxcore/group.c
toxcore/group.h)
# LAYER 8: Public API
# -------------------
apidsl(toxcore/tox.api.h)
set(toxcore_SOURCES ${toxcore_SOURCES}
toxcore/tox_api.c
toxcore/tox.c
toxcore/tox.h)
set(toxcore_API_HEADERS ${toxcore_API_HEADERS} ${toxcore_SOURCE_DIR}/toxcore/tox.h^tox)
################################################################################
#
# :: Audio/Video Library
#
################################################################################
if(BUILD_TOXAV)
apidsl(toxav/toxav.api.h)
set(toxcore_SOURCES ${toxcore_SOURCES}
toxav/audio.c
toxav/audio.h
toxav/bwcontroller.c
toxav/bwcontroller.h
toxav/groupav.c
toxav/groupav.h
toxav/msi.c
toxav/msi.h
toxav/ring_buffer.c
toxav/ring_buffer.h
toxav/rtp.c
toxav/rtp.h
toxav/toxav.c
toxav/toxav.h
toxav/toxav_old.c
toxav/video.c
toxav/video.h)
set(toxcore_LINK_MODULES ${toxcore_LINK_MODULES} ${OPUS_LIBRARIES} ${VPX_LIBRARIES})
set(toxcore_PKGCONFIG_REQUIRES ${toxcore_PKGCONFIG_REQUIRES} opus vpx)
set(toxcore_API_HEADERS ${toxcore_API_HEADERS} ${toxcore_SOURCE_DIR}/toxav/toxav.h^toxav)
endif()
################################################################################
#
# :: Block encryption libraries
#
################################################################################
apidsl(toxencryptsave/toxencryptsave.api.h)
set(toxcore_SOURCES ${toxcore_SOURCES}
toxencryptsave/toxencryptsave.c
toxencryptsave/toxencryptsave.h)
set(toxcore_API_HEADERS ${toxcore_API_HEADERS} ${toxcore_SOURCE_DIR}/toxencryptsave/toxencryptsave.h^tox)
################################################################################
#
# :: System dependencies
#
################################################################################
# These need to come after other dependencies, since e.g. libvpx may depend on
# pthread, but doesn't list it in VPX_LIBRARIES. We're adding it here, after
# any potential libvpx linking.
message("CMAKE_THREAD_LIBS_INIT: ${CMAKE_THREAD_LIBS_INIT}")
if(CMAKE_THREAD_LIBS_INIT)
set(toxcore_LINK_MODULES ${toxcore_LINK_MODULES} ${CMAKE_THREAD_LIBS_INIT})
set(toxcore_PKGCONFIG_LIBS ${toxcore_PKGCONFIG_LIBS} ${CMAKE_THREAD_LIBS_INIT})
endif()
if(RT_LIBRARIES)
set(toxcore_LINK_MODULES ${toxcore_LINK_MODULES} ${RT_LIBRARIES})
set(toxcore_PKGCONFIG_LIBS ${toxcore_PKGCONFIG_LIBS} -lrt)
endif()
if(WIN32)
set(toxcore_LINK_MODULES ${toxcore_LINK_MODULES} ws2_32 iphlpapi)
set(toxcore_PKGCONFIG_LIBS ${toxcore_PKGCONFIG_LIBS} -lws2_32 -liphlpapi)
endif()
################################################################################
#
# :: All layers together in one library for ease of use
#
################################################################################
# Create combined library from all the sources.
add_module(toxcore ${toxcore_SOURCES})
# Link it to all dependencies.
target_link_modules(toxcore ${toxcore_LINK_MODULES})
# Make version script (on systems that support it) to limit symbol visibility.
make_version_script(toxcore ${toxcore_API_HEADERS})
# Generate pkg-config file, install library to "${CMAKE_INSTALL_LIBDIR}" and install headers to
# "${CMAKE_INSTALL_INCLUDEDIR}/tox".
install_module(toxcore DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/tox)
################################################################################
#
# :: Unit tests: no networking, just pure function calls.
#
################################################################################
include(CompileGTest)
# The actual unit tests follow.
#
unit_test(toxav rtp)
unit_test(toxcore crypto_core)
unit_test(toxcore util)
################################################################################
#
# :: Automated regression tests: create a tox network and run integration tests
#
################################################################################
set(TEST_TIMEOUT_SECONDS "" CACHE STRING "Limit runtime of each test to the number of seconds specified")
option(FORMAT_TEST "Require the format_test to be executed; fail cmake if it can't" OFF)
if(ASTYLE)
add_test(
NAME format_test
COMMAND ${toxcore_SOURCE_DIR}/other/astyle/format-source
"${toxcore_SOURCE_DIR}"
"${ASTYLE}")
set_tests_properties(format_test PROPERTIES TIMEOUT "${TEST_TIMEOUT_SECONDS}")
elseif(FORMAT_TEST)
message(FATAL_ERROR "format_test can not be run, because ASTYLE (${ASTYLE}) could not be found")
endif()
if(ANDROID_CPU_FEATURES)
# We need to compile cpufeatures.c as many times as there are executables,
# because libvpx doesn't include it although it depends on it. We can't get
# the link ordering right in cmake, so we need to compile the cpufeatures
# library into every binary explicitly.
#
# The alternative is to #include the library in every main file, but I
# (@iphydf) felt that this solution was cleaner.
add_definitions(-DANDROID_CPU_FEATURES="${ANDROID_CPU_FEATURES}")
set(CPUFEATURES other/cpufeatures.c)
endif()
function(auto_test target)
if(NOT (MSVC AND ARGV1 STREQUAL "MSVC_DONT_BUILD"))
add_executable(auto_${target}_test ${CPUFEATURES}
auto_tests/${target}_test.c)
target_link_modules(auto_${target}_test toxcore)
if(NOT ARGV1 STREQUAL "DONT_RUN")
add_test(NAME ${target} COMMAND ${CROSSCOMPILING_EMULATOR} auto_${target}_test)
set_tests_properties(${target} PROPERTIES TIMEOUT "${TEST_TIMEOUT_SECONDS}")
set_property(TEST ${target} PROPERTY ENVIRONMENT "LLVM_PROFILE_FILE=${target}.profraw")
endif()
endif()
endfunction()
if(BUILD_TOXAV)
add_definitions(-D__STDC_LIMIT_MACROS=1)
add_executable(auto_monolith_test ${CPUFEATURES}
auto_tests/monolith_test.cpp)
target_link_libraries(auto_monolith_test ${toxcore_LINK_MODULES})
add_test(NAME monolith COMMAND ${CROSSCOMPILING_EMULATOR} auto_monolith_test)
endif()
auto_test(TCP)
auto_test(bootstrap)
auto_test(conference)
auto_test(crypto MSVC_DONT_BUILD)
auto_test(dht MSVC_DONT_BUILD)
auto_test(encryptsave)
auto_test(file_transfer)
auto_test(friend_request)
auto_test(lan_discovery)
auto_test(lossless_packet)
auto_test(lossy_packet)
auto_test(messenger MSVC_DONT_BUILD)
auto_test(network)
auto_test(onion)
auto_test(resource_leak)
auto_test(save_friend)
auto_test(save_load)
auto_test(send_message)
auto_test(set_name)
auto_test(set_status_message)
auto_test(simple_conference)
auto_test(skeleton)
auto_test(tcp_relay)
auto_test(tox_many)
auto_test(tox_many_tcp)
auto_test(tox_one)
auto_test(tox_strncasecmp)
auto_test(typing)
auto_test(version)
# TODO(iphydf): These tests are broken. The code needs to be fixed, as the
# tests themselves are correct.
auto_test(selfname_change_conference DONT_RUN)
auto_test(self_conference_title_change DONT_RUN)
if(BUILD_TOXAV)
auto_test(toxav_basic)
auto_test(toxav_many)
endif()
################################################################################
#
# :: Bootstrap daemon
#
################################################################################
option(DHT_BOOTSTRAP "Enable building of DHT_bootstrap" ON)
if(DHT_BOOTSTRAP)
add_executable(DHT_bootstrap ${CPUFEATURES}
other/DHT_bootstrap.c
other/bootstrap_node_packets.c)
target_link_modules(DHT_bootstrap toxcore)
endif()
option(BOOTSTRAP_DAEMON "Enable building of tox-bootstrapd" ON)
if(BOOTSTRAP_DAEMON AND WIN32)
message(WARNING "Building tox-bootstrapd for Windows is not supported")
set(BOOTSTRAP_DAEMON OFF)
endif()
if(BOOTSTRAP_DAEMON)
if(NOT LIBCONFIG_FOUND)
message(WARNING "Option BOOTSTRAP_DAEMON is enabled but required library LIBCONFIG was not found.")
set(BOOTSTRAP_DAEMON OFF)
else()
add_executable(tox-bootstrapd ${CPUFEATURES}
other/bootstrap_daemon/src/command_line_arguments.c
other/bootstrap_daemon/src/command_line_arguments.h
other/bootstrap_daemon/src/config.c
other/bootstrap_daemon/src/config.h
other/bootstrap_daemon/src/config_defaults.h
other/bootstrap_daemon/src/global.h
other/bootstrap_daemon/src/log.c
other/bootstrap_daemon/src/log.h
other/bootstrap_daemon/src/log_backend_stdout.c
other/bootstrap_daemon/src/log_backend_stdout.h
other/bootstrap_daemon/src/log_backend_syslog.c
other/bootstrap_daemon/src/log_backend_syslog.h
other/bootstrap_daemon/src/tox-bootstrapd.c
other/bootstrap_node_packets.c
other/bootstrap_node_packets.h)
target_link_modules(tox-bootstrapd toxcore ${LIBCONFIG_LIBRARIES})
install(TARGETS tox-bootstrapd RUNTIME DESTINATION bin)
endif()
endif()
################################################################################
#
# :: Test programs
#
################################################################################
option(BUILD_AV_TEST "Build toxav test" ON)
if(NOT WIN32
AND BUILD_AV_TEST AND BUILD_TOXAV
AND SNDFILE_FOUND AND PORTAUDIO_FOUND AND OPENCV_FOUND)
add_executable(av_test ${CPUFEATURES}
testing/av_test.c)
target_link_modules(av_test
toxcore
${OPENCV_LIBRARIES}
${PORTAUDIO_LIBRARIES}
${SNDFILE_LIBRARIES})
# Due to https://github.com/opencv/opencv/issues/6585, we need to compile
# av_test as C++ for newer OpenCV versions.
if(NOT OPENCV_VERSION VERSION_LESS 3)
set_source_files_properties(testing/av_test.c PROPERTIES LANGUAGE CXX)
endif()
endif()
add_executable(DHT_test ${CPUFEATURES}
testing/DHT_test.c)
target_link_modules(DHT_test toxcore)
add_executable(Messenger_test ${CPUFEATURES}
testing/Messenger_test.c)
target_link_modules(Messenger_test toxcore)
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