1 #ifndef __LINUX_STACKTRACE_H 2 #define __LINUX_STACKTRACE_H 3 4 struct task_struct; 5 6 #ifdef CONFIG_STACKTRACE 7 struct task_struct; 8 9 struct 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 15 extern void save_stack_trace(struct stack_trace *trace); 16 extern void save_stack_trace_bp(struct stack_trace *trace, unsigned long bp); 17 extern void save_stack_trace_tsk(struct task_struct *tsk, 18 struct stack_trace *trace); 19 20 extern void print_stack_trace(struct stack_trace *trace, int spaces); 21 22 #ifdef CONFIG_USER_STACKTRACE_SUPPORT 23 extern 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