Android的引导 - 在这里是init％的硬件在％.RC INIT.C阅读？服务正在启动？ [英] android boot - where is the init.%hardware%.rc read in init.c ? where are services started?

问题描述

通过code在 <$ C展望$ C> INIT.C 并试图弄清楚两件事情：

Going through the code in init.c and trying to figure out 2 things:

• 在哪里硬件初始化特定％硬件.RC％读？

• Where is the hardware specific init.%hardware%.rc read ?

在哪里服务启动 - 这意味着合子，
/系统/斌/的ServiceManager等

Where are the services started - meaning zygote, /system/bin/servicemanager etc

一个init％硬件的.rc％的一个例子是AP preciated。

An example of an init.%hardware%.rc would be appreciated.

推荐答案

确定了它 - 这两个问题在init.rc回答

Ok got it - both questions are answered in init.rc.

• 具体硬件的init％硬件.RC％在的 http://androidxref.com/4.3_r2.1/xref/system/core/rootdir/init.rc#8 ，其中我们看行

import /init.${ro.hardware}.rc

现在， ro.hardware 从命令行读出（的主，的 process_kernel_cmdline 终于 export_kernel_boot_props ）。哪里是命令行，嗯......

Now, ro.hardware is read from the command line (main, process_kernel_cmdline and finally export_kernel_boot_props). Where is the command line, well...

服务启动：在主引导动作的引发，其中包含行

Services started: in main the boot action is triggered, which contains the lines

class_start core
class_start main

这是启动所有的核心和主要的服务。得到的信息<一个href=\"http://stackoverflow.com/questions/20041794/where-are-the-android-system-services-started/20060853#20060853\">Where在Android系统服务启动？

that start all the core and main services. Got the info from Where are the Android system services started?

注：我指的是奇巧 - 因人而异

NB: I refer to KitKat - YMMV

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