edit android systembinbattery charging file

#Edit android systembinbattery charging file driver
#Edit android systembinbattery charging file code

Init.rc is located in /bootable/recovery/etc/init.rc Of course, you can also look at the Chinese version ； To understand how init.rc is parsed, we need to look at the documentation first. One is used for flashing, that is, to enter the recorvery mode, and the other is used for normal startup our focus here is the above one, which is also init The one associated with. It can be guessed from the catalog that the two init.rc usage scenarios are different.

The real entry point is the system/core/init/init.c mentioned above.īecause the init.c file is relatively large, in the second part of the article I will briefly analyze the init startup process through the main function It should be understood that these init.rc are just grammar files, not programs. These files are located in the following directories.

#Edit android systembinbattery charging file code

Init program is not composed of one source code file, but is formed by linking a set of object files of source code files. When the Linux kernel is loaded, the first thing to do is to call the init program, that is, init is the first program executed in user space.Īlthough the work done by init is not much, the code is still very complicated. One of its main tasks is to create a directory where these files that interact with the kernel space are located. The program to complete these tasks is the init described in this article. These files that interact with the kernel space are in the user space, so after loading in the Linux kernel, you need to first create the directory where these files are located.

For example, a device usually corresponds to one or more device files. Students who know Linux should know that one of the important features of Linux is that everything exists in the form of files.

#Edit android systembinbattery charging file driver

In order to let everyone see more clearly, the last picture first 'Overall Startup Framework':Īt present, Linux has many communication mechanisms that can interact between user space and kernel space, such as device driver files (located in the /dev directory), memory files (/proc, /sys directories, etc.). The main function of the system/core/init/init.c file continues to execute restart_servie_if_needed(.) -> service_start(.) -> Execve(.) to establish the service process.Place the service information in the service_list of system/core/init/init_parser.cpp parse_config_file (init.rc) in the main function of the system/core/init/init.c file reads and parses the contents of the init.rc file.This is a blog written with heart, and I hope everyone can read it carefully and help find the improvement of the article, thank you