738 int xmon(struct pt_regs *excp)  in xmon()  argument
742 	if (excp == NULL) {  in xmon()
744 		excp = &regs;  in xmon()
747 	return xmon_core(excp, 0);  in xmon()
1044 cmds(struct pt_regs *excp)  in cmds()  argument
1049 	xmon_regs = excp;  in cmds()
1051 	xmon_show_stack(excp->gpr[1], excp->link, excp->nip);  in cmds()
1102 			prregs(excp);	/* print regs */  in cmds()
1105 			excprint(excp);  in cmds()
1111 			backtrace(excp);  in cmds()
1119 			if (do_step(excp))  in cmds()
1293 static int batch_cmds(struct pt_regs *excp)  in batch_cmds()  argument
1302 	xmon_regs = excp;  in batch_cmds()
1310 		prregs(excp);	/* print regs */  in batch_cmds()
1316 		backtrace(excp);  in batch_cmds()
1806 static void backtrace(struct pt_regs *excp)  in backtrace()  argument
1813 		xmon_show_stack(excp->gpr[1], excp->link, excp->nip);  in backtrace()