update_var_state(9)

💅 update_var_state 💅

okay so bestie, welcome to the Kernel API Manual page for update_var_state — literally the glow-up your type-state table needed ✨

🌸 NAME 🌸

update_var_state — update type state using given variables 🎀

🦋 SYNOPSIS 🦋

void update_var_state (struct type_state *state , struct data_loc_info
*dloc , u64 addr , u64 insn_offset , struct die_var_type *var_types );

✨ ARGUMENTS ✨

• state — the type state table, aka the main character of this whole operation 👑
• dloc — data location info, the receipts about where stuff lives 📍
• addr — instruction address to match with variable — gotta pair them up 💞
• insn_offset — instruction offset (for debug), so you can debug with your whole chest 🐛
• var_types — list of variables with type info, the guest list for the table party 🎟️

💖 DESCRIPTION 💖

so this function fills the state table using the var_types info — no cap, that's the vibe 🌈

each variable is used only at the given location and updates an entry in the table. periodt. every variable pulls up to its assigned spot and updates its entry — iconic behavior tbh 💅

🔥 SEE ALSO 🔥

• Kernel file ./tools/perf/util/annotate-data.c — plus update_insn_state(9), find_data_type(9), and annotated_data_type__update_samples(9) 🫶

made with 💖 from source/version ./tools/perf/util · date October 2026 · xoxo, your resident Unix bestie 🧚