eBPF

Purpose

Guide agents through writing, loading, and debugging eBPF programs using libbpf, bpftrace, and bpftool. Covers map types, program types, verifier errors, XDP networking, and CO-RE portability.

Triggers

• "How do I write an eBPF program to trace system calls?"
• "My eBPF program fails with a verifier error"
• "How do I use bpftrace to trace kernel events?"
• "How do I share data between kernel eBPF and userspace?"
• "How do I write an XDP program for packet filtering?"
• "How do I make my eBPF program portable across kernel versions (CO-RE)?"

Workflow

1. Choose the right tool