2018-11-06 04:02:21 +00:00
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从零开始设置 Mac OS 环境下的工具链 (CMake)
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*********************************************************************
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:link_to_translation:`en:[英文]`
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.. include:: ../cmake-warning.rst
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软件包管理器
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======================
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从零开始设置工具链，你需要安装 MacPorts_ 或 homebrew_ 包管理器。或者，你也可以直接 :doc:`下载预编译的工具链 <macos-setup>`。
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MacPorts_ 需要安装完整的 XCode 软件，而 homebrew_ 只需要安装 XCode 命令行工具即可。
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.. _homebrew: https://brew.sh/
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.. _MacPorts: https://www.macports.org/install.php
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准备工作
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============================
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- 安装 pip::
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sudo easy_install pip
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- 安装 pyserial::
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sudo pip install pyserial
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- 安装 CMake 和 Ninja 编译工具：
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- 若使用 HomeBrew，你可以运行::
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brew install cmake ninja
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- 若使用 MacPorts，你可以运行::
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sudo port install cmake ninja
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从源代码编译工具链
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========================================
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- 相关安装：
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- 对于 MacPorts::
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sudo port install gsed gawk binutils gperf grep gettext wget libtool autoconf automake make
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- 对于 homebrew::
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brew install gnu-sed gawk binutils gperftools gettext wget help2man libtool autoconf automake make
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创建一个文件系统镜像（区分大小写）::
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hdiutil create ~/esp/crosstool.dmg -volname "ctng" -size 10g -fs "Case-sensitive HFS+"
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挂载::
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hdiutil mount ~/esp/crosstool.dmg
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创建指向你工作目录的符号链接::
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mkdir -p ~/esp
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ln -s /Volumes/ctng ~/esp/ctng-volume
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前往新创建的目录：::
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cd ~/esp/ctng-volume
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下载 ``crosstool-NG``，并开始编译：
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.. include:: /_build/inc/scratch-build-code.inc
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编译工具链：::
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./ct-ng xtensa-esp32-elf
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./ct-ng build
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chmod -R u+w builds/xtensa-esp32-elf
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编译后的工具链将保存在 ``~/esp/ctng-volume/crosstool-NG/builds/xtensa-esp32-elf``。根据 :ref:`Mac OS 下设置环境变量的标准方法 <setup-macos-toolchain-add-it-to-path-cmake>` 中的介绍，将工具链添加到 ``PATH`` 中。
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后续步骤
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=================
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继续设置开发环境，请前往 :ref:`获取 ESP-IDF <get-started-get-esp-idf-cmake>` 章节。
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