.PLT and .GOT – the key to code sharing and dynamic libraries

This text was found here: http://www.technovelty.org/linux/pltgot.html The shared library is an integral part of a modern system, but often the mechanisms behind the implementation are less well understood. There are, of course, many guides to this sort of thing. Hopefully this adds another perspective that resonates with someone. Let's start at the beginning — - … Continue reading .PLT and .GOT – the key to code sharing and dynamic libraries

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Understanding Linux ELF RTLD internals

This text was found here: http://s.eresi-project.org/inc/articles/elf-rtld.txt /* Last update Sun Dec 22 06:55:39 2002 mayhem - Version 0.1 May 2001 - Version 0.2 .::. 2002 (WIP) : - Added stuff about rtld relocation . - Added stuff about rtld symbol resolution . - Various fixes and some links added . This draft remained unreleased for … Continue reading Understanding Linux ELF RTLD internals

Linkers and Loaders

This is an excelent (!!!) article describing in general terms how the process of linking (static and dynamic) and loading elf programs on linux works. This is a very valuable article. The original is found here: http://www.linuxjournal.com/article/6463?page=0,0 Discussing how compilers, links and loaders work and the benefits of shared libraries. Linking is the process of combining … Continue reading Linkers and Loaders