1#ifndef __LINUX_STACKTRACE_H 2#define __LINUX_STACKTRACE_H 3 4#ifdef CONFIG_STACKTRACE 5struct stack_trace { 6 unsigned int nr_entries, max_entries; 7 unsigned long *entries; 8 int skip; /* input argument: How many entries to skip */ 9 int all_contexts; /* input argument: if true do than one stack */ 10}; 11 12extern void save_stack_trace(struct stack_trace *trace, 13 struct task_struct *task); 14 15extern void print_stack_trace(struct stack_trace *trace, int spaces); 16#else 17# define save_stack_trace(trace, task) do { } while (0) 18# define print_stack_trace(trace) do { } while (0) 19#endif 20 21#endif