regs_query_register_offset(9)

💅 regs_query_register_offset — Kernel API Manual ✨

okay so bestie, welcome to the Kernel API Manual era 🎀 this one's a tiny little function with main character energy and honestly? it's giving "short but essential." let's get into it 🫶

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🌸 NAME 🌸

regs_query_register_offset — literally just query a register offset from its name, that's the whole vibe 💖

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✨ SYNOPSIS ✨

int regs_query_register_offset (const char *name );

that's it. that's the whole thing. one argument, one int back, no cap 🔥

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🦋 ARGUMENTS 🦋

• name — the name of a register 💫 like, the string version of it. you hand over the name, the function does the rest. iykyk.

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👑 DESCRIPTION 👑

okay so here's the tea ☕ regs_query_register_offset returns the offset of a register in struct pt_regs from its name. so you give it a name, and it tells you where that register lives inside struct pt_regs — offset style 📍 iconic behaviour, honestly.

but listen 👀 if the name is invalid, this returns -EINVAL; like, it's not gonna guess for you bestie, invalid name = -EINVAL, periodt 💅

no vibes-based guessing here — feed it a bad name and you're getting -EINVAL back, end of story 😭

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🌈 SEE ALSO 🌈

• Kernel file ./arch/x86/kernel/ptrace.c
• regs_query_register_name(9) — the matching bestie to this one, go check it out 🧚

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and that's the whole page, bestie!! go forth and query those offsets 💜

🌸 sign-off time 🌸 this little gem comes from ./arch/x86/kernel, dated October 2026, and it's filed under regs_query_register_offset(9) — slay, documented, done 🎀✨🦋