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<a href="/2021/09/18/%E6%B1%87%E7%BC%96%E5%88%86%E6%9E%90Objective-C-Block/">汇编分析Objective-C Block</a>
</h2>
<p class="article-date">September 18, 2021</p>
<div class="article-summary">
0x0 前言Block类似于闭包，在Objective-C中本质是一种特殊的对象。下面内容主要从汇编的角度去分析，脱离Block源码，所以需要一定的x86汇编（AT&T汇编）知识。
0x1 变量a是怎么传进block的？先看一段简单的block代码，并考虑上面的问题：
1234567 ...
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<a class="more" href="/2021/09/18/%E6%B1%87%E7%BC%96%E5%88%86%E6%9E%90Objective-C-Block/">Read more</a>
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<a href="/2021/08/24/iOS%E5%BA%94%E7%94%A8%E5%90%AF%E5%8A%A8%E6%B5%81%E7%A8%8B%E5%88%86%E6%9E%90/">iOS应用启动流程分析</a>
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<p class="article-date">August 24, 2021</p>
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app从冷启动开始到第一帧画面渲染完成，经过了很多的过程，以下主要分析pre-main阶段，也就是main函数调用之前的阶段。用户点击app后，内核会加载解析Mach-O文件，然后交给dyld继续加载，最后会来到main函数。
XNU加载dyld流程dyld(the dynamic link ...
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<a class="more" href="/2021/08/24/iOS%E5%BA%94%E7%94%A8%E5%90%AF%E5%8A%A8%E6%B5%81%E7%A8%8B%E5%88%86%E6%9E%90/">Read more</a>
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<a href="/2021/05/29/Objective-C-Runtime-%E4%BA%8C-%E9%87%8A%E6%94%BE%E5%AF%B9%E8%B1%A1/">Objective-C Runtime(二) : 释放对象</a>
</h2>
<p class="article-date">May 29, 2021</p>
<div class="article-summary">
上回说到创建对象，这回来说下释放对象。在iOS中，使用引用计数来管理对象内存。iOS5之前，使用手动引用计数MRC(Manual Reference Counting)来管理内存，后面又推出了使用更广泛的自动引用计数ARC(Automatic Reference Counting)。MRC需 ...
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<a href="/2021/05/19/Objective-C-Runtime-%E4%B8%80-%E5%88%9B%E5%BB%BA%E5%AF%B9%E8%B1%A1/">Objective-C Runtime(一) : 创建对象</a>
</h2>
<p class="article-date">May 19, 2021</p>
<div class="article-summary">
可能每天都跟对象打交道，但是OC对象是怎么创建出来的，具体是怎样的一个流程，让我们通过调试Runtime源码一探究竟。以下内容基于objc4-818.2版本源码探索。
Tagged Pointer先说下比较特殊的“对象”，Tagged Pointer，保存在常量区，并不在堆区，不通过mall ...
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<a class="more" href="/2021/05/19/Objective-C-Runtime-%E4%B8%80-%E5%88%9B%E5%BB%BA%E5%AF%B9%E8%B1%A1/">Read more</a>
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<a href="/2021/04/30/Hexo-GitHub-Actions%E6%90%AD%E5%BB%BA%E6%97%A5%E8%AE%B0/">Hexo + GitHub Actions搭建日记</a>
</h2>
<p class="article-date">April 30, 2021</p>
<div class="article-summary">
电脑前段时间重装了系统，索性一并把博客翻新，主要使用Hexo和GitHub Actions，页面部署在GitHub Pages。记录下搭建过程，如果你也有类似需求，可以当作参考。
搭建环境：
macOS Big Sur
安装Hexo
安装nvm（通过Homebrew安装）
1brew ...
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<a class="more" href="/2021/04/30/Hexo-GitHub-Actions%E6%90%AD%E5%BB%BA%E6%97%A5%E8%AE%B0/">Read more</a>
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