/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright ( C ) 2014 - 15 Synopsys , Inc . ( www . synopsys . com )
* Copyright ( C ) 2007 - 2010 , 2011 - 2012 Synopsys , Inc . ( www . synopsys . com )
*/
#ifndef __ASM_STACKTRACE_H
#define __ASM_STACKTRACE_H
#include <linux/sched.h>
/**
* arc_unwind_core - Unwind the kernel mode stack for an execution context
* @ 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
*
* Returns the address of first function in stack
*
* 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
*/
notrace noinline unsigned int arc_unwind_core(
struct task_struct *tsk, struct pt_regs *regs,
int (*consumer_fn) (unsigned int , void *),
void *arg);
#endif /* __ASM_STACKTRACE_H */
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(vorverarbeitet am 2026-10-12)
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