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_tsk(struct task_struct *tsk,
  15                                 struct stack_trace *trace);
  16
  17 extern void print_stack_trace(struct stack_trace *trace, int spaces);
  18
  19 #ifdef CONFIG_USER_STACKTRACE_SUPPORT
  20 extern void save_stack_trace_user(struct stack_trace *trace);
  21 #else
  22 # define save_stack_trace_user(trace)              do { } while (0)
  23 #endif
  24
  25 #else
  26 # define save_stack_trace(trace)                        do { } while (0)
  27 # define save_stack_trace_tsk(tsk, trace)               do { } while (0)
  28 # define save_stack_trace_user(trace)                   do { } while (0)
  29 # define print_stack_trace(trace, spaces)               do { } while (0)
  30 #endif
  31
  32 #endif