LXR linux/include/linux/stacktrace.h

   1#ifndef __LINUX_STACKTRACE_H
   2#define __LINUX_STACKTRACE_H
   3
   4#include <linux/types.h>
   5
   6struct task_struct;
   7struct pt_regs;
   8
   9#ifdef CONFIG_STACKTRACE
  10struct stack_trace {
  11        unsigned int nr_entries, max_entries;
  12        unsigned long *entries;
  13        int skip;       /* input argument: How many entries to skip */
  14};
  15
  16extern void save_stack_trace(struct stack_trace *trace);
  17extern void save_stack_trace_regs(struct pt_regs *regs,
  18                                  struct stack_trace *trace);
  19extern void save_stack_trace_tsk(struct task_struct *tsk,
  20                                struct stack_trace *trace);
  21
  22extern void print_stack_trace(struct stack_trace *trace, int spaces);
  23extern int snprint_stack_trace(char *buf, size_t size,
  24                        struct stack_trace *trace, int spaces);
  25
  26#ifdef CONFIG_USER_STACKTRACE_SUPPORT
  27extern void save_stack_trace_user(struct stack_trace *trace);
  28#else
  29# define save_stack_trace_user(trace)              do { } while (0)
  30#endif
  31
  32#else
  33# define save_stack_trace(trace)                        do { } while (0)
  34# define save_stack_trace_tsk(tsk, trace)               do { } while (0)
  35# define save_stack_trace_user(trace)                   do { } while (0)
  36# define print_stack_trace(trace, spaces)               do { } while (0)
  37# define snprint_stack_trace(buf, size, trace, spaces)  do { } while (0)
  38#endif
  39
  40#endif
  41