Build TBB (Intel Threading Building Blocks) for RaspberryPi3

TBBonARMv7　

１．はじめに

全体の作業含めて１０分ぐらいで終了します。
まともに使えるかどうかは別として。。。
ちなみに私はOpenCVの自力ビルド前にTBBをインストールしておいてOpenCVへ組み込んでいます。

この世に必要とする人がいらっしゃるのかどうかは知りません。

２．ビルド手順

事前準備１

$ cd ~
$ wget https://github.com/01org/tbb/archive/2019_U5.tar.gz
$ tar xvf 2019_U5.tar.gz
$ rm 2019_U5.tar.gz
$ cd tbb-2019_U5

$ make tbb CXXFLAGS="-DTBB_USE_GCC_BUILTINS=1 -D__TBB_64BIT_ATOMICS=0"

$ cd ~
$ mkdir libtbb-dev_2019U5_armhf
$ cd libtbb-dev_2019U5_armhf
$ mkdir -p usr/local/lib/pkgconfig
$ mkdir -p usr/local/include
$ mkdir DEBIAN
$ cd ~/libtbb-dev_2019U5_armhf/DEBIAN

$ cat > control

#========== Input below ========================================
Package: libtbb-dev
Priority: extra
Section: universe/libdevel
Maintainer: <Your name>
Architecture: armhf
Version: 2019U5
Homepage: http://threadingbuildingblocks.org/
Description: parallelism library for C++ - development files
 TBB is a library that helps you leverage multi-core processor
 performance without having to be a threading expert. It represents a
 higher-level, task-based parallelism that abstracts platform details
 and threading mechanism for performance and scalability.
 .
 (Note: if you are a user of the i386 architecture, i.e., 32-bit Intel
 or compatible hardware, this package only supports Pentium4-compatible
 and higher processors.)
 .
 This package includes the TBB headers, libs and pkg-config
#========== Above input ========================================

Ctrl+D でCATコマンドを終了。

事前準備２

$ cd ~/libtbb-dev_2019U5_armhf/usr/local/lib
$ cp ~/tbb-2019_U5/build/*_release/libtbb.so.2 .

$ ln -s libtbb.so.2 libtbb.so
$ cd ~/tbb-2019_U5/include
$ cp -r serial tbb ~/libtbb-dev_2019U5_armhf/usr/local/include

$ cd ~/libtbb-dev_2019U5_armhf/usr/local/lib/pkgconfig
$ cat > tbb.pc

#========== Input below ========================================
# Manually added pkg-config file for tbb - START
prefix=/usr/local
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include
Name: tbb
Description: thread building block
Version: 2019U5
Cflags: -I${includedir} -DTBB_USE_GCC_BUILTINS=1 -D__TBB_64BIT_ATOMICS=0
Libs: -L${libdir} -ltbb
# Manually added pkg-config file for tbb - END
#========== Above input ========================================

Ctrl+D でCATコマンドを終了。

debパッケージのビルド

$ cd ~
$ sudo chown -R root:staff libtbb-dev_2019U5_armhf
$ sudo dpkg-deb --build libtbb-dev_2019U5_armhf

３．インストール

Install

$ sudo dpkg -i ~/libtbb-dev_2019U5_armhf.deb
$ sudo ldconfig
$ rm libtbb-dev_2019U5_armhf.deb