Lowlevel Userspace Programming

Talks

Lecture resources:

• Slides
• kernel sources online
• glibc sources online
• ELF specs
• UNIX specs
• Ulrich Drepper's papers - especially How to Write Shared Libraries, Understanding CPU Caches
• Algoritmy a jejich implementace - lowlevel/HPC programming practical course class materials (Czech)
• ifunc demo - GNU indirect functions
• screenenv - override getenv() to do something smart
• masinka - raw assembly + basic I/O in Linux process
• retty - ptrace() example application
• loadtycoon - "custom dosemu" example application

Originally written for Linuxove odpoledne Plzen in 2007; updated for U-IN-X Prague 2010 (Jan 2010) and SUSE Friday Talk (Nov 2010).