CMakeLists.txt

###############################################################################
# Copyright (c) 2017, 2017 IBM Corp. and others
#
# This program and the accompanying materials are made available under
# the terms of the Eclipse Public License 2.0 which accompanies this
# distribution and is available at https://www.eclipse.org/legal/epl-2.0/
# or the Apache License, Version 2.0 which accompanies this distribution and
# is available at https://www.apache.org/licenses/LICENSE-2.0.
#
# This Source Code may also be made available under the following
# Secondary Licenses when the conditions for such availability set
# forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
# General Public License, version 2 with the GNU Classpath
# Exception [1] and GNU General Public License, version 2 with the
# OpenJDK Assembly Exception [2].
#
# [1] https://www.gnu.org/software/classpath/license.html
# [2] http://openjdk.java.net/legal/assembly-exception.html
#
# SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
###############################################################################

cmake_minimum_required(VERSION 3.2 FATAL_ERROR)

message(STATUS "Starting with CMake version ${CMAKE_VERSION}")

include(cmake/versions.cmake) # Required for OMR_VERSION

project(omr VERSION ${OMR_VERSION} LANGUAGES CXX C)

set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules" ${CMAKE_MODULE_PATH})

include(OmrAssert)
include(OmrFindFiles)
include(OmrHookgen)
include(OmrPlatform)
include(OmrTracegen)

###
### Set up the global platform configuration
###

if(NOT OMR_PLATFORM_GLOBALLY_INITIALIZED)
	omr_platform_global_setup()
endif()
set(CMAKE_POSITION_INDEPENDENT_CODE ON)

###
### Set up install path stuff
###
# Note the paths are a bit odd compared to standard gnu install paths
# This is because we arent expecting to actually be installing globally
# since we don't have a good story for installing OMR system-wide
set(CMAKE_INSTALL_BINDIR ".")
set(CMAKE_INSTALL_LIBDIR ".")
set(OMR_INSTALL_PREFIX "${CMAKE_CURRENT_BINARY_DIR}" CACHE PATH "Root path where to install OMR")
set(CMAKE_INSTALL_PREFIX "${OMR_INSTALL_PREFIX}")
include(GNUInstallDirs)
set(CMAKE_INSTALL_RPATH "\$ORIGIN")
add_custom_target(omr_install_tooling
	COMMAND ${CMAKE_COMMAND} --build tools --target preinstall
	COMMAND ${CMAKE_COMMAND} -DCMAKE_INSTALL_COMPONENT=tooling -P "${CMAKE_BINARY_DIR}/cmake_install.cmake"
)

###
### Getting the glue target
###
set(OMR_GC_GLUE_TARGET "omr_example_gc_glue" CACHE STRING "The gc glue target, must be interface library")
set(OMR_UTIL_GLUE_TARGET "omr_example_util_glue" CACHE STRING "The util glue target, must be interface library")
set(OMR_RAS_GLUE_TARGET "omr_example_ras_glue" CACHE STRING "The ras glue target, must be interface library")
set(OMR_CORE_GLUE_TARGET "omr_example_core_glue" CACHE STRING "The core glue target, must be and interface library")

# TODO should we always be adding this?  Likely only when compiling OMR proper for testing. Otherwise we would want
# to add the languages glue folder
add_subdirectory(example/glue)

# TODO: OMR_EXAMPLE flag
# TODO: OMR_RTTI flag

# TODO: Version things

###
### Versions and stuff
###

include(cmake/config.cmake)

enable_testing()

include_directories(
	${PROJECT_BINARY_DIR}
	./include/
	./include_core/
	./third_party/
)

add_definitions(
	-DUT_DIRECT_TRACE_REGISTRATION # TODO:  Deal with that stupid jni issue in tracegen
)

# Check for existing omrcfg in the source tree since this can cause alot of headaches
# Also check if we are building in tree while we are at it
if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
	if(NOT MSVC_IDE) #MSVC will handle in tree builds ok
		message(WARNING "In tree builds are not recommended")
	endif()
else()
include(cmake/CheckSourceTree.cmake)
add_custom_target(header_check ALL
	${CMAKE_COMMAND} "-Domr_SOURCE_DIR=${omr_SOURCE_DIR}" -P ${CMAKE_CURRENT_SOURCE_DIR}/cmake/CheckSourceTree.cmake)
endif()

configure_file(./omrcfg.CMakeTemplate.h omrcfg.h)
configure_file(./omrversionstrings.CMakeTemplate.h omrversionstrings.h)

if(OMR_TOOLS_IMPORTFILE)
	include("${OMR_TOOLS_IMPORTFILE}")
elseif(OMR_TOOLS)
	add_subdirectory(tools)
else()
	message(FATAL_ERROR "OMR: Build tools are required. See OMR_TOOLS and OMR_TOOLS_IMPORTFILE")
endif()

add_subdirectory(thread)
add_subdirectory(port)
add_subdirectory(util)
add_subdirectory(omrtrace)
add_subdirectory(omr)
add_subdirectory(third_party)
add_subdirectory(omrsigcompat)

if(OMR_GC)
	add_subdirectory(gc)
endif(OMR_GC)

if(OMR_DDR)
	add_subdirectory(ddr)
endif(OMR_DDR)

if(OMR_JITBUILDER)
	add_subdirectory(jitbuilder)
endif(OMR_JITBUILDER)

# This should come last to ensure dependencies
# are defined
if(OMR_FVTEST)
	add_subdirectory(fvtest)
endif()