arc_unwind_core(9)

💅 NAME 💅

okay so this page is arc_unwind_core(9) from the Kernel API Manual, and it's literally about arc_unwind_core — the function that unwinds the kernel mode stack for an execution context. main character energy fr fr. 💖

✨ SYNOPSIS ✨

notrace unsigned int arc_unwind_core (struct task_struct *tsk , struct
pt_regs *regs , int (*consumer_fn) (unsigned int, void *) , void *arg );

🎀 ARGUMENTS 🎀

• tsk — NULL for current task, specific task otherwise.
• regs — pt_regs used to seed the unwinder {SP, FP, BLINK, PC}. If NULL, use pt_regs of tsk (if !NULL) otherwise use the current values of {SP, FP, BLINK, PC}.
• consumer_fn — callback invoked for each frame unwound. Returns 0 to continue unwinding, -1 to stop.
• arg — arg to callback.

💖 DESCRIPTION 💖

Returns the address of first function in stack. no cap, that's the whole return vibe.

Semantics:

• synchronous unwinding (e.g. dump_stack): tsk NULL, regs NULL
• Asynchronous unwinding of sleeping task: tsk !NULL, regs NULL
• Asynchronous unwinding of intr/excp etc: tsk !NULL, regs !NULL

🔥 SEE ALSO 🔥

• Kernel file ./arch/arc/include/asm/stacktrace.h — go peek, bestie 👀

and the footer tea is source/version ./arch/arc/include/asm, dated October 2026 — mwah 💋✨