x86OS: 一个基于Linux 0.11的x86操作系统

如何开始

1. 安装工具链

   • 安装gcc-i686-linux-gnu, gdb, cmake

     # $ sudo dpkg --add-architecture i386
     $ sudo apt update
     $ sudo apt upgrade
     # $ sudo apt install libc6-i386
     # $ sudo apt install gcc-i686-linux-gnu
     $ sudo apt install gdb
     $ sudo apt install cmake
     $ sudo apt install texinfo

   • 安装qemu

     $ sudo apt install qemu-system-x86

2. 移植newlib

   • 安装i686-elf-tools工具链

     $ cd ~ && mkdir compiler && cd compiler
     $ wget https://github.com/lordmilko/i686-elf-tools/releases/download/13.2.0/i686-elf-tools-linux.zip  # (自行选择版本!!!)
     $ mkdir i686-elf-tools && cd i686-elf-tools
     $ unzip ../i686-elf-tools-linux.zip
     $ mkdir newlib

   • 配置环境变量

     $ echo 'export PATH="$HOME/compiler/i686-elf-tools/bin:$PATH"' >> ~/.bashrc
     $ source ~/.bashrc

   • 下载newlib-4.5.0

     $ wget ftp://sourceware.org/pub/newlib/newlib-4.5.0.20241231.tar.gz
     $ tar xvf newlib-4.5.0.20241231.tar.gz

   • 编译newlib

     $ cd newlib-4.5.0.20241231
     $ mkdir build && cd build
     $ ../configure --target=i686-elf --prefix=${HOME}/compiler/i686-elf-tools/newlib \
     --disable-multilib --disable-newlib-supplied-syscalls --enable-newlib-long-time_t \
     --disable-newlib-io-float
     $ make all -j${nproc}
     $ make install

3. 创建虚拟硬盘 // TODO:

   $ qemu-img create -f raw ./image/disk1.img 50M
   $ qemu-img create -f raw ./image/disk2.img 50M