EBPF SYSCALL PREAMBLE(9)

🫶 eBPF Syscall Preamble(9) 🫶

okay bestie, this is the Kernel API Manual intro and it’s giving main-character energy ✨. No cap, it’s short but important.

The operation that the bpf() system call is gonna perform is decided by the cmd argument 💅. Every operation takes an accompanying argument, and you hand it over through attr — which is a pointer to a union of type bpf_attr (see below 👀). The size argument is literally the size of the union that attr points to. Periodt.

✨ SEE ALSO ✨

• Kernel file ./tools/include/uapi/linux/bpf.h
• eBPF Syscall Commands(9)

bestie, go peek at those for the full lore 🧚💖

mwah 💋 this page lives in ./tools/include/uapi/linux and is dated October 2026 — Kernel API Manual, you ate and left no crumbs 👑.