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db_print.c revision 1.2.4.1 
      1 /*
      2  * Mach Operating System
      3  * Copyright (c) 1991,1990 Carnegie Mellon University
      4  * All Rights Reserved.
      5  *
      6  * Permission to use, copy, modify and distribute this software and its
      7  * documentation is hereby granted, provided that both the copyright
      8  * notice and this permission notice appear in all copies of the
      9  * software, derivative works or modified versions, and any portions
     10  * thereof, and that both notices appear in supporting documentation.
     11  *
     12  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
     13  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
     14  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     15  *
     16  * Carnegie Mellon requests users of this software to return to
     17  *
     18  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     19  *  School of Computer Science
     20  *  Carnegie Mellon University
     21  *  Pittsburgh PA 15213-3890
     22  *
     23  * any improvements or extensions that they make and grant Carnegie the
     24  * rights to redistribute these changes.
     25  */
     26 /*
     27  * $Id: db_print.c,v 1.2.4.1 1993/11/14 22:48:37 mycroft Exp $
     28  *
     29  * HISTORY
     30  * $Log: db_print.c,v $
     31  * Revision 1.2.4.1  1993/11/14 22:48:37  mycroft
     32  * Canonicalize all #includes.
     33  *
     34  * Revision 1.2  1993/05/20  03:39:25  cgd
     35  * add explicit rcs id
     36  *
     37  * Revision 1.1.1.1  1993/03/21  09:46:27  cgd
     38  * initial import of 386bsd-0.1 sources
     39  *
     40  * Revision 1.1  1992/03/25  21:45:22  pace
     41  * Initial revision
     42  *
     43  * Revision 2.5  91/02/05  17:06:53  mrt
     44  * 	Changed to new Mach copyright
     45  * 	[91/01/31  16:18:56  mrt]
     46  *
     47  * Revision 2.4  90/10/25  14:43:54  rwd
     48  * 	Changed db_show_regs to print unsigned.
     49  * 	[90/10/19            rpd]
     50  * 	Generalized the watchpoint support.
     51  * 	[90/10/16            rwd]
     52  *
     53  * Revision 2.3  90/09/09  23:19:52  rpd
     54  * 	Avoid totally incorrect guesses of symbol names for small values.
     55  * 	[90/08/30  17:39:08  af]
     56  *
     57  * Revision 2.2  90/08/27  21:51:49  dbg
     58  * 	Insist that 'show thread' be called with an explicit address.
     59  * 	[90/08/22            dbg]
     60  *
     61  * 	Fix type for db_maxoff.
     62  * 	[90/08/20            dbg]
     63  *
     64  * 	Do not dereference the "valuep" field of a variable directly,
     65  * 	call the new db_read/write_variable functions instead.
     66  * 	Reflected changes in symbol lookup functions.
     67  * 	[90/08/20            af]
     68  * 	Reduce lint.
     69  * 	[90/08/10  14:33:44  dbg]
     70  *
     71  * 	Created.
     72  * 	[90/07/25            dbg]
     73  *
     74  */
     75 /*
     76  * 	Author: David B. Golub, Carnegie Mellon University
     77  *	Date:	7/90
     78  */
     79 
     80 /*
     81  * Miscellaneous printing.
     82  */
     83 #include <sys/param.h>
     84 #include <sys/proc.h>
     85 #include <machine/db_machdep.h>
     86 
     87 #include <ddb/db_lex.h>
     88 #include <ddb/db_variables.h>
     89 #include <ddb/db_sym.h>
     90 
     91 extern unsigned int	db_maxoff;
     92 
     93 void
     94 db_show_regs()
     95 {
     96 	int	(*func)();
     97 	register struct db_variable *regp;
     98 	db_expr_t	value, offset;
     99 	char *		name;
    100 
    101 	for (regp = db_regs; regp < db_eregs; regp++) {
    102 	    db_read_variable(regp, &value);
    103 	    db_printf("%-12s%#10n", regp->name, value);
    104 	    db_find_xtrn_sym_and_offset((db_addr_t)value, &name, &offset);
    105 	    if (name != 0 && offset <= db_maxoff && offset != value) {
    106 		db_printf("\t%s", name);
    107 		if (offset != 0)
    108 		    db_printf("+%#r", offset);
    109 	    }
    110 	    db_printf("\n");
    111 	}
    112 	db_print_loc_and_inst(PC_REGS(DDB_REGS));
    113 }
    114 
    115