1 /* 2 * Copyright (C) 2012 ARM Ltd. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program. If not, see <http://www.gnu.org/licenses/>. 15 */ 16 #ifndef __ASM_STACKTRACE_H 17 #define __ASM_STACKTRACE_H 18 19 struct task_struct; 20 21 struct stackframe { 22 unsigned long fp; 23 unsigned long sp; 24 unsigned long pc; 25 #ifdef CONFIG_FUNCTION_GRAPH_TRACER 26 unsigned int graph; 27 #endif 28 }; 29 30 extern int unwind_frame(struct task_struct *tsk, struct stackframe *frame); 31 extern void walk_stackframe(struct task_struct *tsk, struct stackframe *frame, 32 int (*fn)(struct stackframe *, void *), void *data); 33 34 #endif /* __ASM_STACKTRACE_H */ 35