/* * arch/xtensa/include/asm/stacktrace.h * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 2001 - 2013 Tensilica Inc. */ #ifndef _XTENSA_STACKTRACE_H #define _XTENSA_STACKTRACE_H #include <linux/sched.h> struct stackframe { unsigned long pc; unsigned long sp; }; static __always_inline unsigned long *stack_pointer(struct task_struct *task) { unsigned long sp; if (!task || task == current) sp = current_stack_pointer; else sp = task->thread.sp; return (unsigned long *)sp; } void walk_stackframe(unsigned long *sp, int (*fn)(struct stackframe *frame, void *data), void *data); void xtensa_backtrace_kernel(struct pt_regs *regs, unsigned int depth, int (*kfn)(struct stackframe *frame, void *data), int (*ufn)(struct stackframe *frame, void *data), void *data); void xtensa_backtrace_user(struct pt_regs *regs, unsigned int depth, int (*ufn)(struct stackframe *frame, void *data), void *data); #endif /* _XTENSA_STACKTRACE_H */