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      1 /*	$NetBSD: db_print.c,v 1.29 2020/03/10 15:58:37 christos Exp $	*/
      2 
      3 /*
      4  * Mach Operating System
      5  * Copyright (c) 1991,1990 Carnegie Mellon University
      6  * All Rights Reserved.
      7  *
      8  * Permission to use, copy, modify and distribute this software and its
      9  * documentation is hereby granted, provided that both the copyright
     10  * notice and this permission notice appear in all copies of the
     11  * software, derivative works or modified versions, and any portions
     12  * thereof, and that both notices appear in supporting documentation.
     13  *
     14  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     15  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
     16  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     17  *
     18  * Carnegie Mellon requests users of this software to return to
     19  *
     20  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     21  *  School of Computer Science
     22  *  Carnegie Mellon University
     23  *  Pittsburgh PA 15213-3890
     24  *
     25  * any improvements or extensions that they make and grant Carnegie the
     26  * rights to redistribute these changes.
     27  *
     28  * 	Author: David B. Golub, Carnegie Mellon University
     29  *	Date:	7/90
     30  */
     31 
     32 /*
     33  * Miscellaneous printing.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 __KERNEL_RCSID(0, "$NetBSD: db_print.c,v 1.29 2020/03/10 15:58:37 christos Exp $");
     38 
     39 #include <sys/param.h>
     40 #include <sys/proc.h>
     41 #include <sys/cpu.h>
     42 
     43 #include <ddb/ddb.h>
     44 
     45 /*ARGSUSED*/
     46 void
     47 db_show_regs(db_expr_t addr, bool have_addr,
     48     db_expr_t count, const char *modif)
     49 {
     50 #ifdef _KERNEL
     51 	const struct db_variable *regp;
     52 	struct db_variable vs;
     53 	db_expr_t value, offset;
     54 	const char *name;
     55 
     56 	for (regp = db_regs; regp < db_eregs; regp++) {
     57 		vs = *regp;
     58 		vs.modif = modif;
     59 		db_read_variable(&vs, &value);
     60 		db_printf("%-12s%s", vs.name, db_num_to_str(value));
     61 		db_find_xtrn_sym_and_offset((db_addr_t)value, &name, &offset);
     62 		if (name != NULL &&
     63 		    (unsigned int) offset <= db_maxoff && offset != value) {
     64 			db_printf("\t%s", name);
     65 			if (offset != 0) {
     66 				char tbuf[24];
     67 
     68 				db_format_radix(tbuf, 24, offset, true);
     69 				db_printf("+%s", tbuf);
     70 			}
     71 		}
     72 		db_printf("\n");
     73 	}
     74 	db_print_loc_and_inst(PC_REGS(DDB_REGS));
     75 #else
     76 	db_kernelonly();
     77 #endif
     78 }
     79