1#ifndef __LINUX_STACKTRACE_H 2#define __LINUX_STACKTRACE_H 3 4struct task_struct; 5 6#ifdef CONFIG_STACKTRACE 7struct task_struct; 8 9struct stack_trace { 10 unsigned int nr_entries, max_entries; 11 unsigned long *entries; 12 int skip; /* input argument: How many entries to skip */ 13}; 14 15extern void save_stack_trace(struct stack_trace *trace); 16extern void save_stack_trace_bp(struct stack_trace *trace, unsigned long bp); 17extern void save_stack_trace_tsk(struct task_struct *tsk, 18 struct stack_trace *trace); 19 20extern void print_stack_trace(struct stack_trace *trace, int spaces); 21 22#ifdef CONFIG_USER_STACKTRACE_SUPPORT 23extern void save_stack_trace_user(struct stack_trace *trace); 24#else 25# define save_stack_trace_user(trace) do { } while (0) 26#endif 27 28#else 29# define save_stack_trace(trace) do { } while (0) 30# define save_stack_trace_tsk(tsk, trace) do { } while (0) 31# define save_stack_trace_user(trace) do { } while (0) 32# define print_stack_trace(trace, spaces) do { } while (0) 33#endif 34 35#endif 36