Shulou(Shulou.com)06/03 Report--

This article mainly introduces the Linux dynamic library load search path example analysis, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

The dynamic linker ld.so searches for the desired dynamic shared libraries in the following order:

The path specified by DT_RPATH in the dynamic segment of the 1.ELF executable file. This is actually set by a less commonly used but more practical method: when compiling the object code, you can add the link parameter "- Wl,-rpath" to gcc/g++ to specify the dynamic library search path

2. Dynamic library search path specified by environment variable LD_LIBRARY_PATH

The path to the dynamic library cached in 3./etc/ld.so.cache, if ld.so.cache is supported. This can be changed by modifying the dynamic library search path specified in the configuration file / etc/ld.so.conf

4. Default dynamic library search path / lib or / lib64

5. Default dynamic library search path / usr/lib or / usr/lib64

Simple example

Root@4c9f329b2677:/home/test# cat printf.cpp

# include

Void Print ()

{

Std::cout

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