Common Hackable Adaptable Operating System
このレポジトリには2019年のSecHack365で開発しているOS（CHAOS）のコードが入っています．CHAOSはKL-01ライセンスなので自由に改変してください．
まだ開発途中ですが，拡張性に優れて自由に改造できる(ハッカブルな)組込みOSを目指します． フルスクラッチでARM64bitで動作するOSというのが特徴でお手持ちのRaspberry Pi 3 model bで動作します． またQEMUを使ったエミュレーションも可能です．
サポートしている機能
- UART
- GPIO
- RNG
This repository contains the code of the OS (CHAOS) developed by SecHack365 in 2019. CHAOS is a KL-01 license, so feel free to hack it.
Although it is still under development, it aims to be a (hackable) embedded OS that is highly extensible and can be freely modified. CHAOS runs on your Raspberry Pi 3 model b, which is characterized by an OS that runs on ARM64bit with full scratches. CHAOS can emulate on QEMU.
Supported functions
- UART
- GPIO
- RNG
- CHAOSをクローンします．
clone CHAOS.
git clone https://github.com/75u2u/CHAOS
- クロスコンパイル用の開発環境を構築するために必要なツールチェインをダウンロードします．
Download the toolchain required to build a development environment for cross compilation.
wget https://ftpmirror.gnu.org/binutils/binutils-2.30.tar.gz
wget https://ftpmirror.gnu.org/gcc/gcc-8.1.0/gcc-8.1.0.tar.gz
wget https://ftpmirror.gnu.org/mpfr/mpfr-4.0.1.tar.gz
wget https://ftpmirror.gnu.org/gmp/gmp-6.1.2.tar.bz2
wget https://ftpmirror.gnu.org/mpc/mpc-1.1.0.tar.gz
wget https://gcc.gnu.org/pub/gcc/infrastructure/isl-0.18.tar.bz2
wget https://gcc.gnu.org/pub/gcc/infrastructure/cloog-0.18.1.tar.gz
sudo apt install g++-arm-linux-gnueabihf
sudo apt install qemu-user-binfmt
sudo apt install g++-aarch64-linux-gnu qemu-user-binfmt
sudo ln -s /usr/aarch64-linux-gnu/lib/ /lib/aarch64-linux-gnu
sudo ln -s /lib/aarch64-linux-gnu/ld-2.23.so /lib/ld-linux-aarch64.so.1
sudo apt install minicom
- ダウンロードしたファイルを解凍します．
Unzip the downloaded files.
for i in *.tar.gz; do tar -xzf $i; done
for i in *.tar.bz2; do tar -xjf $i; done
- ツールチェインを使えるようにするためリンクします．
Link to make the toolchain usable.
cd binutils-*
ln -s ../isl-* isl
cd ..
cd gcc-*
ln -s ../isl-* isl
ln -s ../mpfr-* mpfr
ln -s ../gmp-* gmp
ln -s ../mpc-* mpc
ln -s ../cloog-* cloog
cd ..
- binutilsをビルドします．
Build binutils.
mkdir aarch64-binutils
cd aarch64-binutils
../binutils-*/configure --prefix=/usr/local/cross-compiler --target=aarch64-elf \
--enable-shared --enable-threads=posix --enable-libmpx --with-system-zlib --with-isl --enable-__cxa_atexit \
--disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-plugin \
--disable-linker-build-id --enable-lto --enable-install-libiberty --with-linker-hash-style=gnu --with-gnu-ld\
--enable-gnu-indirect-function --disable-multilib --disable-werror --enable-checking=release --enable-default-pie \
--enable-default-ssp --enable-gnu-unique-object
make -j4
make install
cd ..
- gccをビルドします．
Build gcc.
mkdir aarch64-gcc
cd aarch64-gcc
../gcc-*/configure --prefix=/usr/local/cross-compiler --target=aarch64-elf --enable-languages=c \
--enable-shared --enable-threads=posix --enable-libmpx --with-system-zlib --with-isl --enable-__cxa_atexit \
--disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch --disable-libssp --enable-plugin \
--disable-linker-build-id --enable-lto --enable-install-libiberty --with-linker-hash-style=gnu --with-gnu-ld\
--enable-gnu-indirect-function --disable-multilib --disable-werror --enable-checking=release --enable-default-pie \
--enable-default-ssp --enable-gnu-unique-object
make -j4 all-gcc
make install-gcc
cd ..
- ビルドに成功すると以下のディレクトリに実行ファイルが展開されます．
If the build is successful, the executable file will be expanded to the following directory.
$ ls /usr/local/cross-compiler/bin
aarch64-elf-addr2line aarch64-elf-elfedit aarch64-elf-gcc-ranlib aarch64-elf-ld aarch64-elf-ranlib
aarch64-elf-ar aarch64-elf-gcc aarch64-elf-gcov aarch64-elf-ld.bfd aarch64-elf-readelf
aarch64-elf-as aarch64-elf-gcc-7.2.0 aarch64-elf-gcov-dump aarch64-elf-nm aarch64-elf-size
aarch64-elf-c++filt aarch64-elf-gcc-ar aarch64-elf-gcov-tool aarch64-elf-objcopy aarch64-elf-strings
aarch64-elf-cpp aarch64-elf-gcc-nm aarch64-elf-gprof aarch64-elf-objdump aarch64-elf-strip
CHAOS のビルド
Build CHAOS
make
QEMU上でエミュレーション
Emulate on QEMU
make run
SDカードにCHAOSを書き込む
Write CHAOS into SD card
cp kernel8.img /media/USERNAME/SD/.
cp bootcode.bin /media/USERNAME/SD/.
cp config.txt /media/USERNAME/SD/.
cp start.elf /media/USERNAME/SD.
ラズベリーパイ3と通信
Communicate with Raspberry Pi 3
make com
詳細はMakefileを参照してください．
Please check Makefile for more details.