Trying to use uprobes and BPF on non-C userspace

What is this about?

• User space
• uprobes
• !C
• Calling conventions

Who asked for this?

• Red Hat Customer
• Telco
• Lots of software providers
• Wanting more metrics

Native metrics

• prometheus and others
• Existing metrics
• But I need some more!
• Wait for next version?

uprobes

• Collect some more metrics
• More flexibility on using existing ones
• Meta metrics
• Next version can come with these new ones

uprobes 2

• Binaries have lots of info
• DWARF
• Coding conventions
• Tooling to query this

DWARF

• pahole
• types
• functions
• perf

But...

• What about golang, Rust, zig?
• Compiled
• Have DWARF
• Calling conventions