OPPO Kernel Craftsman

May 16, 2025 · Fundamentals

How Does eBPF Work? A Deep Dive into Its VM, Instruction Set, and JIT

This article explains eBPF from a developer's perspective, covering the eBPF virtual machine, instruction encoding, bytecode generation with LLVM/Clang, loading via the bpf() syscall, verifier rules, execution flow, JIT compilation, and how Android builds and packages eBPF programs.