1 #ifndef __LINUX_STACKTRACE_H 2 #define __LINUX_STACKTRACE_H 3 4 struct task_struct; 5 6 #ifdef CONFIG_STACKTRACE 7 struct 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 13 extern void save_stack_trace(struct stack_trace *trace); 14 extern void save_stack_trace_bp(struct stack_trace *trace, unsigned long bp); 15 extern void save_stack_trace_tsk(struct task_struct *tsk, 16 struct stack_trace *trace); 17 18 extern void print_stack_trace(struct stack_trace *trace, int spaces); 19 20 #ifdef CONFIG_USER_STACKTRACE_SUPPORT 21 extern void save_stack_trace_user(struct stack_trace *trace); 22 #else 23 # define save_stack_trace_user(trace) do { } while (0) 24 #endif 25 26 #else 27 # define save_stack_trace(trace) do { } while (0) 28 # define save_stack_trace_tsk(tsk, trace) do { } while (0) 29 # define save_stack_trace_user(trace) do { } while (0) 30 # define print_stack_trace(trace, spaces) do { } while (0) 31 #endif 32 33 #endif 34