arch/arm64/include/asm/stacktrace.h

   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 */