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完善libc,构建了OS-specific工具链,编译了基于gcc-11.3.0的DragonOS userland compiler,移植了mpfr,gmp,mpc库 (#134)
* 修改include路径 * 添加了创建libsysapi.a和/bin/sysroot/usr/include/+lib/的代码 * 修补.gitignore * 删除多余项 * 优化脚本可读性 * 新增crt0 crti crtn * 编译binutils所需的东西 * fflush()和fprintf()的简单实现 * 应用程序启动前,调用初始化libc的函数 * 自动创建sysroot * 添加了stderr的初始化 * 修改了stderr的初始化 * 内核添加对stdio的简略处理 * 格式化代码 * 修正打开stdio文件描述符的问题 * bugfix: 修复fprintf忘记释放buf的问题 * 修复shell错误地把入口设置为main而不是_start的问题 * 新增__cxa_atexit (gcc要求libc提供这个) * 增加putchar puts * 更新写入磁盘镜像的脚本,默认无参数时,使用legacy方式安装 * 更新编译脚本 * stdio增加eof的定义 * 新增extern cplusplus * mpfr gmp mpc 构建脚本 * 更新libsysapi.a为libc.a * 加上ferror fopen fclose * 更新移植的软件的构建脚本 * 更改build_gcc_toolchain.sh中的-save参数名为-save-cache Co-authored-by: longjin <longjin@RinGoTek.cn>
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user/port/gcc/11.3.0/build-hosted.sh
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51
user/port/gcc/11.3.0/build-hosted.sh
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##############################################
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# DragonOS hosted gcc build script
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#
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# This script is used to build userland gcc for DragonOS(Running on Linux)
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##############################################
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# 编译前请先设置参数
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sys_root=$DRAGONOS_SYSROOT
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gcc_path=请填写gcc的路径
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# 要安装到的目录
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PREFIX=$HOME/opt/dragonos-host-userspace
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if [ ! -d ${gcc_path} ]; then
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echo "Error: ${gcc_path} not found"
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exit 1
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fi
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if [ ! -d ${sysroot} ]; then
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echo "Error: ${sysroot} not found"
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exit 1
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fi
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# 安装依赖
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# 注意texinfo和binutils的版本是否匹配
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# 注意gmp/mpc/mpfr和gcc/g++的版本是否匹配
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sudo apt-get install -y \
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g++ \
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gcc \
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make \
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texinfo \
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libgmp3-dev \
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libmpc-dev \
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libmpfr-dev \
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flex \
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wget
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mkdir -p build-gcc || exit 1
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mkdir -p ${PREFIX} || exit 1
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cd build-gcc
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${gcc_path}/configure --prefix=${PREFIX} --target=x86_64-dragonos --with-sysroot=${sysroot} --disable-werror --disable-shared --disable-bootstrap --enable-languages=c,c++ || exit 1
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make all-gcc all-target-libgcc -j $(nproc) || exit 1
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make install-gcc install-target-libgcc -j $(nproc) || exit 1
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# 这里会报错,暂时不知道为什么
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# make all-target-libstdc++-v3 -j $(nproc) || exit 1
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# make install-target-libstdc++-v3 -j $(nproc) || exit 1
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make clean
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cd ..
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rm -rf build-gcc
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