What is ETC Ld so cache?

2 Answers

From the cache file /etc/ld. so. cache, which contains a compiled list of candidate shared objects previously found in the augmented library path . If, however, the binary was linked with the -z nodeflib linker option, shared objects in the default paths are skipped.

By default, libraries are located in /usr/local/lib, /usr/local/lib64, /usr/lib and /usr/lib64 ; system startup libraries are in /lib and /lib64. Programmers can, however, install libraries in custom locations. The library path can be defined in /etc/ld.

Here’s how to use a soname:

A Library in Linux A library is a collection of pre-compiled pieces of code called functions . The library contains common functions and together, they form a package called — a library. Functions are blocks of code that get reused throughout the program. Using the pieces of code again in a program saves time.

Simply put, A shared library/ Dynamic Library is a library that is loaded dynamically at runtime for each application that requires it . Dynamic Linking doesn’t require the code to be copied, it is done by just placing name of the library in the binary file.

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.