Linkers and LTO

Purpose

Guide agents through linker selection, common linker flags, link-order issues, LTO setup, and symbol-visibility management.

Triggers

• "I'm getting undefined reference at link time"
• "How do I enable LTO for a real project?"
• "Which linker should I use: ld, gold, or lld?"
• "How do I reduce binary size with --gc-sections?"
• "How do I write or understand a linker script?"
• "I have duplicate symbol or weak symbol issues"

Workflow

1. Linker selection