usr/src/sys.386bsd/ddb/db_print.c

/*
 * Mach Operating System
 * Copyright (c) 1991,1990 Carnegie Mellon University
 * All Rights Reserved.
 *
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie the
 * rights to redistribute these changes.
 */
/*
 * HISTORY
 * $Log: db_print.c,v $
 * Revision 1.1  1992/03/25  21:45:22  pace
 * Initial revision
 *
 * Revision 2.5  91/02/05  17:06:53  mrt
 *      Changed to new Mach copyright
 *      [91/01/31  16:18:56  mrt]
 *
 * Revision 2.4  90/10/25  14:43:54  rwd
 *      Changed db_show_regs to print unsigned.
 *      [90/10/19            rpd]
 *      Generalized the watchpoint support.
 *      [90/10/16            rwd]
 *
 * Revision 2.3  90/09/09  23:19:52  rpd
 *      Avoid totally incorrect guesses of symbol names for small values.
 *      [90/08/30  17:39:08  af]
 *
 * Revision 2.2  90/08/27  21:51:49  dbg
 *      Insist that 'show thread' be called with an explicit address.
 *      [90/08/22            dbg]
 *
 *      Fix type for db_maxoff.
 *      [90/08/20            dbg]
 *
 *      Do not dereference the "valuep" field of a variable directly,
 *      call the new db_read/write_variable functions instead.
 *      Reflected changes in symbol lookup functions.
 *      [90/08/20            af]
 *      Reduce lint.
 *      [90/08/10  14:33:44  dbg]
 *
 *      Created.
 *      [90/07/25            dbg]
 *
 */
/*
 *      Author: David B. Golub, Carnegie Mellon University
 *      Date:   7/90
 */

/*
 * Miscellaneous printing.
 */
#include "param.h"
#include "proc.h"

#include <machine/db_machdep.h>

#include <ddb/db_lex.h>
#include <ddb/db_variables.h>
#include <ddb/db_sym.h>

extern unsigned int     db_maxoff;

void
db_show_regs()
{
        int     (*func)();
        register struct db_variable *regp;
        db_expr_t       value, offset;
        char *          name;

        for (regp = db_regs; regp < db_eregs; regp++) {
            db_read_variable(regp, &value);
            db_printf("%-12s%#10n", regp->name, value);
            db_find_xtrn_sym_and_offset((db_addr_t)value, &name, &offset);
            if (name != 0 && offset <= db_maxoff && offset != value) {
                db_printf("\t%s", name);
                if (offset != 0)
                    db_printf("+%#r", offset);
            }
            db_printf("\n");
        }
        db_print_loc_and_inst(PC_REGS(DDB_REGS));
}