Static library creation and viewing under Linux, and how to see which dynamic libraries an executable depends on

Static library creation and viewing under Linux, and how to see which dynamic libraries an executable depends on

To create a static library:
Ar-rcs test.a *.O
To view the static library:
Ar-tv TEST.A
Unzip the Static library:
Ar-x TEST.A

To view the dynamic libraries that the program relies on:
Readelf-a Xxx|grep Library
As can be seen, the following cross-program Hello execution relies on the following two dynamic libraries.
[Email protected]:~/test$ arm-none-linux-gnueabi-readelf-a hello|grep "library"
0x00000001 (NEEDED)                     Shared Library: [Libgcc_s.so.1]
0x00000001 (NEEDED)                     Shared Library: [libc.so.6]
[Email protected]:~/test$

Or: Readelf-l hello.

NM XXX View Symbols
where T represents the code snippet, u means it is defined elsewhere, so you need to make sure that it must be defined in a. o or library.

LDD command to view

Static library creation and viewing under Linux, and how to see which dynamic libraries an executable depends on