Tag: G++ shared library

Shared libraries (also called dynamic libraries) are linked into the program in two stages . First, during compile time, the linker verifies that all the symbols (again, functions, variables and the like) required by the program, are either linked into the program, or in one of its shared libraries.

A shared object is an indivisible unit that is generated from one or more relocatable objects . Shared objects can be bound with dynamic executables to form a runable process. As their name implies, shared objects can be shared by more than one application.

LD_PRELOAD is an optional environmental variable containing one or more paths to shared libraries, or shared objects, that the loader will load before any other shared library including the C runtime library (libc.so) This is called preloading a library.