include/linux/stacktrace.h

   1 #ifndef __LINUX_STACKTRACE_H
   2 #define __LINUX_STACKTRACE_H
   3
   4 struct task_struct;
   5
   6 #ifdef CONFIG_STACKTRACE
   7 struct stack_trace {
   8         unsigned int nr_entries, max_entries;
   9         unsigned long *entries;
  10         int skip;       /* input argument: How many entries to skip */
  11 };
  12
  13 extern void save_stack_trace(struct stack_trace *trace);
  14 extern void save_stack_trace_bp(struct stack_trace *trace, unsigned long bp);
  15 extern void save_stack_trace_tsk(struct task_struct *tsk,
  16                                 struct stack_trace *trace);
  17
  18 extern void print_stack_trace(struct stack_trace *trace, int spaces);
  19
  20 #ifdef CONFIG_USER_STACKTRACE_SUPPORT
  21 extern void save_stack_trace_user(struct stack_trace *trace);
  22 #else
  23 # define save_stack_trace_user(trace)              do { } while (0)
  24 #endif
  25
  26 #else
  27 # define save_stack_trace(trace)                        do { } while (0)
  28 # define save_stack_trace_tsk(tsk, trace)               do { } while (0)
  29 # define save_stack_trace_user(trace)                   do { } while (0)
  30 # define print_stack_trace(trace, spaces)               do { } while (0)
  31 #endif
  32
  33 #endif