unwind_trap(9)

💅 unwind_trap(9) — like, the whole page, bestie

okay so this is a page from the Kernel API Manual, and the function's name is unwind_trap. That's the whole vibe: it unwinds through a system trap — one of those traps that stashed the previous state on the stack. 🫶 Short page, but we're gonna treat it with the respect it deserves.

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✨ NAME ✨

unwind_trap — unwind through a system trap, that stored previous state on the stack.

Like, literally what it says on the tin, no cap. 💅

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🌸 SYNOPSIS 🌸

void unwind_trap (struct task_struct *task , unsigned long pc , unsigned
long fp , struct stack_trace *trace , const char *loglvl );

That's five arguments, she's a void, and yes the line breaks in the original are exactly like that. We do not "fix" the wrapping in this house. 😌

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🎀 ARGUMENTS 🎀

okay bestie, here's where it gets hilarious — the documentation for literally every single argument is <italic>-- undescribed --</italic>. Not me making that up. That's the source material. 💀 So:

• task — <italic>-- undescribed --</italic>
• pc — <italic>-- undescribed --</italic>
• fp — <italic>-- undescribed --</italic>
• trace — <italic>-- undescribed --</italic>
• loglvl — <italic>-- undescribed --</italic>

🙈 Just so we're clear: this isn't me being lazy or gatekeeping. The page genuinely ships every one of these as <italic>-- undescribed --</italic>. If you need the real tea on what goes in pc or fp, you're gonna have to read the source, bestie — I'm not about to invent behaviour that isn't in the manual. ✨

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🔥 SEE ALSO 🔥

• Kernel file ./arch/microblaze/kernel/unwind.c — that's where the whole thing lives, go look 👀
• get_frame_size(9)
• find_frame_creation(9)
• lookup_prev_stack_frame(9)
• microblaze_unwind_inner(9)
• microblaze_unwind(9)

Honestly? A whole little friend group of unwind functions. Found family, fr fr. 🧚

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and that's the page, bestie 💖 — source <hotpink>./arch/microblaze/kernel</hotpink>, dated October 2026, and that's the sign-off, mwah 😘 🎀