1 #ifndef __LINUX_STACKTRACE_H 2 #define __LINUX_STACKTRACE_H 3 4 #include <linux/types.h> 5 6 struct task_struct; 7 struct pt_regs; 8 9 #ifdef CONFIG_STACKTRACE 10 struct 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 16 extern void save_stack_trace(struct stack_trace *trace); 17 extern void save_stack_trace_regs(struct pt_regs *regs, 18 struct stack_trace *trace); 19 extern void save_stack_trace_tsk(struct task_struct *tsk, 20 struct stack_trace *trace); 21 22 extern void print_stack_trace(struct stack_trace *trace, int spaces); 23 extern int snprint_stack_trace(char *buf, size_t size, 24 struct stack_trace *trace, int spaces); 25 26 #ifdef CONFIG_USER_STACKTRACE_SUPPORT 27 extern void save_stack_trace_user(struct stack_trace *trace); 28 #else 29 # define save_stack_trace_user(trace) do { } while (0) 30 #endif 31 32 #else 33 # define save_stack_trace(trace) do { } while (0) 34 # define save_stack_trace_tsk(tsk, trace) do { } while (0) 35 # define save_stack_trace_user(trace) do { } while (0) 36 # define print_stack_trace(trace, spaces) do { } while (0) 37 # define snprint_stack_trace(buf, size, trace, spaces) do { } while (0) 38 #endif 39 40 #endif 41