1#ifndef __LINUX_STACKTRACE_H 2#define __LINUX_STACKTRACE_H 3 4struct task_struct; 5 6#ifdef CONFIG_STACKTRACE 7struct 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 13extern void save_stack_trace(struct stack_trace *trace); 14extern void save_stack_trace_tsk(struct task_struct *tsk, 15 struct stack_trace *trace); 16 17extern void print_stack_trace(struct stack_trace *trace, int spaces); 18 19#ifdef CONFIG_USER_STACKTRACE_SUPPORT 20extern 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