1#ifndef __LINUX_STACKTRACE_H 2#define __LINUX_STACKTRACE_H 3 4struct task_struct; 5struct pt_regs; 6 7#ifdef CONFIG_STACKTRACE 8struct task_struct; 9 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); 23 24#ifdef CONFIG_USER_STACKTRACE_SUPPORT 25extern void save_stack_trace_user(struct stack_trace *trace); 26#else 27# define save_stack_trace_user(trace) do { } while (0) 28#endif 29 30#else 31# define save_stack_trace(trace) do { } while (0) 32# define save_stack_trace_tsk(tsk, trace) do { } while (0) 33# define save_stack_trace_user(trace) do { } while (0) 34# define print_stack_trace(trace, spaces) do { } while (0) 35#endif 36 37#endif 38