bpftrace is a high-level tracing language for Linux. bpftrace uses LLVM as a backend to compile scripts to eBPF-bytecode and makes use of libbpf and bcc for interacting with the Linux BPF subsystem, as well as existing Linux tracing capabilities: kernel dynamic tracing (kprobes), user-level dynamic tracing (uprobes), tracepoints, etc. The bpftrace language is inspired by awk, C, and predecessor tracers such as DTrace and SystemTap. bpftrace was created by Alastair Robertson.

• FOSDEM 2025 - bpftrace: a path to the ultimate Linux tracing tool - slides
• bpftrace - Dynamic Tracing for Linux

Based on a discussion on IRC and Mastodon: “How can I get access to the return values of my (Python-) programs functions?” And more generally, how can I trace function execution in Python, showing function parameters and return values?

• decorator
• autologging
• icecream
• snoop and birdseye
• peepshow, a commandline debugger
• Honeycomb and Opentracing