linux-master/kernel/stacktrace.c

5  * Stack trace management functions
19  * stack_trace_print - Print the entries in the stack trace
38  * stack_trace_snprint - Print the entries in the stack trace into a buffer
105  * stack_trace_save - Save a stack trace into a storage array
108  * @skipnr:	Number of entries to skip at the start of the stack trace
110  * Return: Number of trace entries stored.
128  * stack_trace_save_tsk - Save a task stack trace into a storage array
132  * @skipnr:	Number of entries to skip at the start of the stack trace
134  * Return: Number of trace entries stored.
157  * stack_trace_save_regs - Save a stack trace based on pt_regs into a storage array
161  * @skipnr:	Number of entries to skip at the start of the stack trace
163  * Return: Number of trace entries stored.
187  *		stack. Otherwise it guarantees that the stack trace is
217  * stack_trace_save_user - Save a user space stack trace into a storage array
221  * Return: Number of trace entries stored.
249 save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
255 save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace)
261  * stack_trace_save - Save a stack trace into a storage array
264  * @skipnr:	Number of entries to skip at the start of the stack trace
266  * Return: Number of trace entries stored
271 	struct stack_trace trace = {
277 	save_stack_trace(&trace);
278 	return trace.nr_entries;
283  * stack_trace_save_tsk - Save a task stack trace into a storage array
287  * @skipnr:	Number of entries to skip at the start of the stack trace
289  * Return: Number of trace entries stored
295 	struct stack_trace trace = {
302 	save_stack_trace_tsk(task, &trace);
303 	return trace.nr_entries;
308  * stack_trace_save_regs - Save a stack trace based on pt_regs into a storage array
312  * @skipnr:	Number of entries to skip at the start of the stack trace
314  * Return: Number of trace entries stored
319 	struct stack_trace trace = {
325 	save_stack_trace_regs(regs, &trace);
326 	return trace.nr_entries;
337  *		stack. Otherwise it guarantees that the stack trace is
345 	struct stack_trace trace = {
349 	int ret = save_stack_trace_tsk_reliable(tsk, &trace);
351 	return ret ? ret : trace.nr_entries;
357  * stack_trace_save_user - Save a user space stack trace into a storage array
361  * Return: Number of trace entries stored
365 	struct stack_trace trace = {
370 	save_stack_trace_user(&trace);
371 	return trace.nr_entries;
386  * filter_irq_stacks - Find first IRQ stack entry in trace
387  * @entries:	Pointer to stack trace array
390  * Return: Number of trace entries until IRQ stack starts.