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# Copyright (c) 2017-2018 Intel Corporation
#
# 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.
#
#
#
#
#
# Usage:
# include(TBBBuild.cmake)
# tbb_build(ROOT <tbb_root> MAKE_ARGS <arg1> [... <argN>])
# find_package(TBB <options>)
#
include(CMakeParseArguments)
# Save the location of Intel TBB CMake modules here, as it will not be possible to do inside functions,
# see for details: https://cmake.org/cmake/help/latest/variable/CMAKE_CURRENT_LIST_DIR.html
set(_tbb_cmake_module_path ${CMAKE_CURRENT_LIST_DIR})
##
# Builds Intel TBB.
#
# Parameters:
# TBB_ROOT <directory> - path to Intel TBB root directory (with sources);
# MAKE_ARGS <list> - user-defined arguments to be passed to make-tool;
# CONFIG_DIR <variable> - store location of the created TBBConfig if the build was ok, store <variable>-NOTFOUND otherwise.
#
function(tbb_build)
# NOTE: internal function are used to hide them from user.
##
# Provides arguments for make-command to build Intel TBB.
#
# Following arguments are provided automatically if they are not defined by user:
# compiler=<value>
# tbb_build_dir=<value>
# tbb_build_prefix=<value>
# -j<n>
#
# Parameters:
# USER_DEFINED_ARGS <list> - list of user-defined arguments;
# RESULT <variable> - resulting list of 'make' arguments.
#
function(tbb_get_make_args)
set(oneValueArgs RESULT)
set(multiValueArgs USER_DEFINED_ARGS)
cmake_parse_arguments(tbb_GMA "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
set(result ${tbb_GMA_USER_DEFINED_ARGS})
if (NOT tbb_GMA_USER_DEFINED_ARGS MATCHES "compiler=")
# TODO: add other supported compilers.
if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set(compiler gcc)
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
set(compiler icc)
if (CMAKE_SYSTEM_NAME MATCHES "Windows")
set(compiler icl)
endif()
elseif (MSVC)
set(compiler cl)
elseif (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(compiler clang)
endif()
set(result "compiler=${compiler}" ${result})
endif()
if (NOT tbb_GMA_USER_DEFINED_ARGS MATCHES "tbb_build_dir=")
set(result "tbb_build_dir=${CMAKE_CURRENT_BINARY_DIR}/tbb_cmake_build" ${result})
endif()
if (NOT tbb_GMA_USER_DEFINED_ARGS MATCHES "tbb_build_prefix=")
set(result "tbb_build_prefix=tbb_cmake_build_subdir" ${result})
endif()
if (NOT tbb_GMA_USER_DEFINED_ARGS MATCHES "(;|^) *\\-j[0-9]* *(;|$)")
include(ProcessorCount)
ProcessorCount(num_of_cores)
if (NOT num_of_cores EQUAL 0)
set(result "-j${num_of_cores}" ${result})
endif()
endif()
if (CMAKE_SYSTEM_NAME MATCHES "Android")
set(result target=android ${result})
endif()
set(${tbb_GMA_RESULT} ${result} PARENT_SCOPE)
endfunction()
##
# Provides release and debug directories basing on 'make' arguments.
#
# Following 'make' arguments are parsed: tbb_build_dir, tbb_build_prefix
#
# Parameters:
# MAKE_ARGS <list> - 'make' arguments (tbb_build_dir and tbb_build_prefix are required)
# RELEASE_DIR <variable> - store normalized (CMake) path to release directory
# DEBUG_DIR <variable> - store normalized (CMake) path to debug directory
#
function(tbb_get_build_paths_from_make_args)
set(oneValueArgs RELEASE_DIR DEBUG_DIR)
set(multiValueArgs MAKE_ARGS)
cmake_parse_arguments(tbb_GBPFMA "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
foreach(arg ${tbb_GBPFMA_MAKE_ARGS})
if (arg MATCHES "tbb_build_dir=")
string(REPLACE "tbb_build_dir=" "" tbb_build_dir "${arg}")
elseif (arg MATCHES "tbb_build_prefix=")
string(REPLACE "tbb_build_prefix=" "" tbb_build_prefix "${arg}")
endif()
endforeach()
set(tbb_release_dir "${tbb_build_dir}/${tbb_build_prefix}_release")
set(tbb_debug_dir "${tbb_build_dir}/${tbb_build_prefix}_debug")
file(TO_CMAKE_PATH "${tbb_release_dir}" tbb_release_dir)
file(TO_CMAKE_PATH "${tbb_debug_dir}" tbb_debug_dir)
set(${tbb_GBPFMA_RELEASE_DIR} ${tbb_release_dir} PARENT_SCOPE)
set(${tbb_GBPFMA_DEBUG_DIR} ${tbb_debug_dir} PARENT_SCOPE)
endfunction()
# -------------------- #
# Function entry point #
# -------------------- #
set(oneValueArgs TBB_ROOT CONFIG_DIR)
set(multiValueArgs MAKE_ARGS)
cmake_parse_arguments(tbb_build "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
if (NOT EXISTS "${tbb_build_TBB_ROOT}/Makefile" OR NOT EXISTS "${tbb_build_TBB_ROOT}/src")
message(STATUS "Intel TBB can not be built: Makefile or src directory was not found in ${tbb_build_TBB_ROOT}")
set(${tbb_build_CONFIG_DIR} ${tbb_build_CONFIG_DIR}-NOTFOUND PARENT_SCOPE)
return()
endif()
set(make_tool_name make)
if (CMAKE_SYSTEM_NAME MATCHES "Windows")
set(make_tool_name gmake)
elseif (CMAKE_SYSTEM_NAME MATCHES "Android")
set(make_tool_name ndk-build)
endif()
find_program(TBB_MAKE_TOOL ${make_tool_name} DOC "Make-tool to build Intel TBB.")
mark_as_advanced(TBB_MAKE_TOOL)
if (NOT TBB_MAKE_TOOL)
message(STATUS "Intel TBB can not be built: required make-tool (${make_tool_name}) was not found")
set(${tbb_build_CONFIG_DIR} ${tbb_build_CONFIG_DIR}-NOTFOUND PARENT_SCOPE)
return()
endif()
tbb_get_make_args(USER_DEFINED_ARGS ${tbb_build_MAKE_ARGS} RESULT tbb_make_args)
set(tbb_build_cmd ${TBB_MAKE_TOOL} ${tbb_make_args})
string(REPLACE ";" " " tbb_build_cmd_str "${tbb_build_cmd}")
message(STATUS "Building Intel TBB: ${tbb_build_cmd_str}")
execute_process(COMMAND ${tbb_build_cmd}
WORKING_DIRECTORY ${tbb_build_TBB_ROOT}
RESULT_VARIABLE tbb_build_result
ERROR_VARIABLE tbb_build_error_output
OUTPUT_QUIET)
if (NOT tbb_build_result EQUAL 0)
message(STATUS "Building is unsuccessful (${tbb_build_result}): ${tbb_build_error_output}")
set(${tbb_build_CONFIG_DIR} ${tbb_build_CONFIG_DIR}-NOTFOUND PARENT_SCOPE)
return()
endif()
tbb_get_build_paths_from_make_args(MAKE_ARGS ${tbb_make_args}
RELEASE_DIR tbb_release_dir
DEBUG_DIR tbb_debug_dir)
include(${_tbb_cmake_module_path}/TBBMakeConfig.cmake)
tbb_make_config(TBB_ROOT ${tbb_build_TBB_ROOT}
SYSTEM_NAME ${CMAKE_SYSTEM_NAME}
CONFIG_DIR tbb_config_dir
CONFIG_FOR_SOURCE
TBB_RELEASE_DIR ${tbb_release_dir}
TBB_DEBUG_DIR ${tbb_debug_dir})
set(${tbb_build_CONFIG_DIR} ${tbb_config_dir} PARENT_SCOPE)
endfunction()
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