1d2912cb1SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 23a51d50fSVineet Gupta /* 33a51d50fSVineet Gupta * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com) 43a51d50fSVineet Gupta * Copyright (C) 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 53a51d50fSVineet Gupta */ 63a51d50fSVineet Gupta 73a51d50fSVineet Gupta #ifndef __ASM_STACKTRACE_H 83a51d50fSVineet Gupta #define __ASM_STACKTRACE_H 93a51d50fSVineet Gupta 103a51d50fSVineet Gupta #include <linux/sched.h> 113a51d50fSVineet Gupta 123a51d50fSVineet Gupta /** 133a51d50fSVineet Gupta * arc_unwind_core - Unwind the kernel mode stack for an execution context 143a51d50fSVineet Gupta * @tsk: NULL for current task, specific task otherwise 153a51d50fSVineet Gupta * @regs: pt_regs used to seed the unwinder {SP, FP, BLINK, PC} 163a51d50fSVineet Gupta * If NULL, use pt_regs of @tsk (if !NULL) otherwise 173a51d50fSVineet Gupta * use the current values of {SP, FP, BLINK, PC} 183a51d50fSVineet Gupta * @consumer_fn: Callback invoked for each frame unwound 193a51d50fSVineet Gupta * Returns 0 to continue unwinding, -1 to stop 203a51d50fSVineet Gupta * @arg: Arg to callback 213a51d50fSVineet Gupta * 223a51d50fSVineet Gupta * Returns the address of first function in stack 233a51d50fSVineet Gupta * 243a51d50fSVineet Gupta * Semantics: 253a51d50fSVineet Gupta * - synchronous unwinding (e.g. dump_stack): @tsk NULL, @regs NULL 263a51d50fSVineet Gupta * - Asynchronous unwinding of sleeping task: @tsk !NULL, @regs NULL 273a51d50fSVineet Gupta * - Asynchronous unwinding of intr/excp etc: @tsk !NULL, @regs !NULL 283a51d50fSVineet Gupta */ 293a51d50fSVineet Gupta notrace noinline unsigned int arc_unwind_core( 303a51d50fSVineet Gupta struct task_struct *tsk, struct pt_regs *regs, 313a51d50fSVineet Gupta int (*consumer_fn) (unsigned int, void *), 323a51d50fSVineet Gupta void *arg); 333a51d50fSVineet Gupta 343a51d50fSVineet Gupta #endif /* __ASM_STACKTRACE_H */ 35