Esempio n. 1
0
/*
 * Save stack-backtrace addresses into a stack_trace buffer.
 */
void save_stack_trace(struct stack_trace *trace)
{
	struct pt_regs dummyregs;
	struct pt_regs *regs = &dummyregs;

	WARN_ON(trace->nr_entries || !trace->max_entries);

	prepare_frametrace(regs);
	save_context_stack(trace, regs);
}
void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
{
	struct pt_regs dummyregs;
	struct pt_regs *regs = &dummyregs;

	WARN_ON(trace->nr_entries || !trace->max_entries);

	if (tsk != current) {
		regs->regs[29] = tsk->thread.reg29;
		regs->regs[31] = 0;
		regs->cp0_epc = tsk->thread.reg31;
	} else
		prepare_frametrace(regs);
	save_context_stack(trace, tsk, regs);
}