首页late_initcall

late_initcall

时间: 2024-01-06 15:04:32 浏览: 60

Linux-Insight:Linux内核源码认知层，承上启下的分析

内核模块分析框架 duanery 2019年1月23日 Linux爱好者核心原理简介 1使用方法用户态的用法内核态的用法 2编译发现模块是如何编译的（如果有的话） 3初始化模块的初始化入口，以及初始化阶段做了什么 3.1 start_kernel初始化 3.2 initcall初始化 core_initcall（fn）arch_initcall（fn）fs_initcall（fn）device_initcall（fn）late_initcall（fn） 4源码简析简要介绍核心原始码，或者详解核心原始码 4.1数据结构介绍核心数据结构 4.2内核线程介绍内核线程的作用与相互作用（如果存在内核线程的话） 4.3 percpu percpu的逻辑，如hrtimer即每cpu一颗红黑树挂接定时器，runqueue即每CPU运行操作系统，挂接进程。 5界面 proc文件系统接口，

Late_initcall is a type of initialization function used in the Linux kernel. It is similar to the initcall function, but is executed later in the boot process, after the majority of the system has been initialized. This allows modules and drivers to be loaded later in the boot process, which can be useful for certain use cases. Late_initcall functions are defined using the LATE_INITCALL macro, which takes a single function name as an argument. These functions are registered with the kernel and executed in the order in which they are registered. Some examples of use cases for late_initcall functions include loading modules or drivers that depend on other system components that are initialized late in the boot process, or performing actions that need to wait until other system initialization tasks are complete.

阅读全文