FUNCTION::FASTCALL(3stap)

💖 NAME 💖

okay so bestie, welcome to function::fastcall from the 3stap manual, aka the Context Functions corner of the SystemTap Tapset Reference 🫶 and it does exactly one (1) thing: it marks a function as declared fastcall. that's the whole vibe.

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✨ SYNOPSIS ✨

fastcall()

look at her. no arguments, no drama, just a clean little call. iconic behavior honestly 💅

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🎀 ARGUMENTS 🎀

• None — nothing to pass, nothing to worry about, she takes zero (0) arguments, periodt 🌸

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💅 DESCRIPTION 💅

okay so here's the tea 🔥 if the probed kernel function was declared fastcall in the source, you have to call this function before you go accessing arguments with the *_arg functions.

that's it. that's the whole assignment. call fastcall() first, then do your *_arg thing. do it in the wrong order and, like, no 💀 — order matters here, bestie, don't freestyle it.

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👑 SEE ALSO 👑

• tapset::registers(3stap) — go read this one too, it's giving essential lore 🌈

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and that's the page fr fr 💜 this was the SystemTap Tapset Reference, dated September 2026, and yes you read the whole thing, we're so proud of you, mwah 🎀✨