How to implement. So Shared library files

The. So shared library is equivalent to the in window. DLL file

Two processes call the. So file at the same time, and the process loads the. So files into their own memory space, and cannot implement interprocess communication.

How to compile the. so file:

The-so file does not require a main file and is not executed even if there is one.

-When compiling gcc, you need to add-fpic option to generate location-independent code. (First address, offset address)

-When linking, GCC needs to add the-shared option, indicating that a shared library file is generated.

-The shared library file needs to start with Lib with a. so extension.

How to implement. So Shared library files