Linux Static library and dynamic library

Static library (. a)

A deal.c usedeal.c

Focus

1. Gcc-c DEAL.C

Generate DEAL.O

2. AR-RSV LIBDEAL.A DEAL.O

Generate LIBDEAL.A

2.5 You can see which OBG files are contained in a static library by Ar-t LIBDEAL.A

3. Gcc-o usedeal usedeal.c-l./-ldeal

Generating an executable program Usedeal

4../usedeal

Dynamic libraries (. So)

Usedeal.c

Deal.h

Dynamic links

1. o File generation

Gcc-c-fpic-o DEAL.O deal.c

-C means only compilation (compile), not connection. The-o option is used to describe the output file name. GCC will generate a target (object) file DEAL.O.

Note the-fpic option. Pic refers to position independent Code. This option is required for shared libraries to enable dynamic connectivity (linking).

2. So file generation

Gcc-shared-o deal.so DEAL.O

The library file starts with Lib. The shared library file is suffixed with. So. -shared indicates that a shared library is generated.

3.gcc-o Test Usedeal.c-ldeal-l.

Generate Test executable program

./test

Dynamic loading

Cond..

It's too urgent to write a lot of places to add (╯-﹏-) ╯ (┷━━━┷

Reference

Http://www.cnblogs.com/vamei/archive/2013/04/04/2998850.html

Http://www.codeceo.com/article/linux-library.html

Linux Static library and dynamic library