/* * Copyright (C) 2012 ARM Ltd. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program.  If not, see <http://www.gnu.org/licenses/>. */#ifndef __ASM_STACKTRACE_H#define __ASM_STACKTRACE_H struct task_struct; struct stackframe {	unsigned long fp;	unsigned long sp;	unsigned long pc;#ifdef CONFIG_FUNCTION_GRAPH_TRACER	unsigned int graph;#endif}; extern int unwind_frame(struct task_struct *tsk, struct stackframe *frame);extern void walk_stackframe(struct task_struct *tsk, struct stackframe *frame,			    int (*fn)(struct stackframe *, void *), void *data); #endif	/* __ASM_STACKTRACE_H */