LD_LIBRARY_PATH is an environment variable on Unix systems that is often abused.
An environment variable is a value that affects the behavior of some computer processes.
Although environment variables were developed for UNIX, they are also used on Windows and Linux.
A lot of programmers apply variables incorrectly, which can cause problems.
In this tutorial you will learn what LD_LIBRARY_PATH is, how to use it, and problems with variables on Unix/Linux/Windows.
- What is LD_LIBRARY_PATH?
- How to use LD_LIBRARY_PATH
- Problem with LD_LIBRARY_PATH
What is LD_LIBRARY_PATH?
LD_LIBRARY PATH is an environment variable that sets the path the linker looks at when linking dynamic or shared libraries.
In other words, it tells the link loader where to look for dynamic shared libraries.
It includes a colon-separated list of paths, and the linker prioritizes them over standard library paths.
In most cases, you need to put “java.library.path” on a JVM command line.
How to use LD_LIBRARY_PATH
LD_LIBRARY_PATH has 3 main uses.
First, it can be used to test new versions of shared libraries with the compiled application.
Second, it can be used to reposition shared libraries to preserve old versions.
Finally, you can create relocatable environments for large applications so they don’t depend on system libraries.
Here is an example of its usage:
$ export LD_LIBRARY_PATH=”/list/of/library/paths:/another/path” $ ./program
Problem with LD_LIBRARY_PATH
There are 3 main problems with LD_LIBRARY_PATH.
First, it compromises security because hackers can gain access to your application to load a shared library that contains malicious code.
Second, it reduces the performance of your applications if the path has many directories because the failed calls will increase.
Finally, LD_LIBRARY_PATH will cause an application to load a shared library that is not linked against a library that may not be compatible with the original version.
read more
How to fix “python: cannot open file ‘manage.py’: [Errno 2] No file or directory”
How to fix “TypeError: object ‘type’ cannot be registered”
How to fix “Object of type ‘int’ has no len()”
Categories: How to
Source: thpttranhungdao.edu.vn/en/
