Dynamic Linking

Purpose

Guide agents through Linux dynamic linking: shared library creation, RPATH/RUNPATH configuration, soname versioning, dlopen/dlsym plugin patterns, LD_PRELOAD interposition, and symbol visibility control.

Triggers

• "Cannot open shared object file: No such file or directory"
• "How do I set RPATH so my binary finds its shared library?"
• "How do I use dlopen/dlsym for a plugin system?"
• "What's the difference between RPATH and RUNPATH?"
• "How do I use LD_PRELOAD to intercept a function?"
• "How do I version my shared library with soname?"

Workflow

1. Creating a shared library