BPF loaders & syscall boundary

Learning objectives

• Map deploy/load/execute paths for SBF programs without memorizing every syscall ID.
• State where program inputs become CPI-capable versus syscall-mediated IO.
• Prepare for the contribution module by knowing which crates house loader tests.

Reading scaffold

Wire real file paths from programs/bpf_loader, programs/bpf_loader_deprecated, runtime syscall dispatch—after node scripts/reflect-changes.js solana-core when runtime/ shifts.

Previous: Accounts, rent & parallelism. Next (hands-on): OSS contribution — docs, tests & first PR.

Glossary