sys/ddb/db_print.c

   1 /*      $NetBSD: db_print.c,v 1.26 2007/02/22 06:41:01 thorpej 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@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 1.26 2007/02/22 06:41:01 thorpej Exp $");
  38
  39 #include <sys/param.h>
  40 #include <sys/proc.h>
  41
  42 #include <ddb/ddb.h>
  43
  44 /*ARGSUSED*/
  45 void
  46 db_show_regs(db_expr_t addr, bool have_addr,
  47     db_expr_t count, const char *modif)
  48 {
  49         const struct db_variable *regp;
  50         struct db_variable vs;
  51         db_expr_t value, offset;
  52         const char *name;
  53
  54         for (regp = db_regs; regp < db_eregs; regp++) {
  55                 vs = *regp;
  56                 vs.modif = modif;
  57                 db_read_variable(&vs, &value);
  58                 db_printf("%-12s%s", vs.name, db_num_to_str(value));
  59                 db_find_xtrn_sym_and_offset((db_addr_t)value, &name, &offset);
  60                 if (name != NULL &&
  61                     (unsigned int) offset <= db_maxoff && offset != value) {
  62                         db_printf("\t%s", name);
  63                         if (offset != 0) {
  64                                 char tbuf[24];
  65
  66                                 db_format_radix(tbuf, 24, offset, true);
  67                                 db_printf("+%s", tbuf);
  68                         }
  69                 }
  70                 db_printf("\n");
  71         }
  72         db_print_loc_and_inst(PC_REGS(DDB_REGS));
  73 }