678 int xmon(struct pt_regs *excp)  in xmon()  argument
682 	if (excp == NULL) {  in xmon()
684 		excp = &regs;  in xmon()
687 	return xmon_core(excp, 0);  in xmon()
953 cmds(struct pt_regs *excp)  in cmds()  argument
958 	xmon_regs = excp;  in cmds()
960 	xmon_show_stack(excp->gpr[1], excp->link, excp->nip);  in cmds()
1007 			prregs(excp);	/* print regs */  in cmds()
1010 			excprint(excp);  in cmds()
1016 			backtrace(excp);  in cmds()
1024 			if (do_step(excp))  in cmds()
1582 static void backtrace(struct pt_regs *excp)  in backtrace()  argument
1589 		xmon_show_stack(excp->gpr[1], excp->link, excp->nip);  in backtrace()