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/7.1.0/i686-elf-tools-linux.zip
   
   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 && 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

TODO: 3. 创建虚拟硬盘

cd image