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Annotation of Net2/ddb/db_print.c, revision 1.1

1.1     ! root        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  [email protected]
        !            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:  * HISTORY
        !            28:  * $Log: db_print.c,v $
        !            29:  * Revision 1.1  1992/03/25  21:45:22  pace
        !            30:  * Initial revision
        !            31:  *
        !            32:  * Revision 2.5  91/02/05  17:06:53  mrt
        !            33:  *     Changed to new Mach copyright
        !            34:  *     [91/01/31  16:18:56  mrt]
        !            35:  * 
        !            36:  * Revision 2.4  90/10/25  14:43:54  rwd
        !            37:  *     Changed db_show_regs to print unsigned.
        !            38:  *     [90/10/19            rpd]
        !            39:  *     Generalized the watchpoint support.
        !            40:  *     [90/10/16            rwd]
        !            41:  * 
        !            42:  * Revision 2.3  90/09/09  23:19:52  rpd
        !            43:  *     Avoid totally incorrect guesses of symbol names for small values.
        !            44:  *     [90/08/30  17:39:08  af]
        !            45:  * 
        !            46:  * Revision 2.2  90/08/27  21:51:49  dbg
        !            47:  *     Insist that 'show thread' be called with an explicit address.
        !            48:  *     [90/08/22            dbg]
        !            49:  * 
        !            50:  *     Fix type for db_maxoff.
        !            51:  *     [90/08/20            dbg]
        !            52:  * 
        !            53:  *     Do not dereference the "valuep" field of a variable directly,
        !            54:  *     call the new db_read/write_variable functions instead.
        !            55:  *     Reflected changes in symbol lookup functions.
        !            56:  *     [90/08/20            af]
        !            57:  *     Reduce lint.
        !            58:  *     [90/08/10  14:33:44  dbg]
        !            59:  * 
        !            60:  *     Created.
        !            61:  *     [90/07/25            dbg]
        !            62:  * 
        !            63:  */
        !            64: /*
        !            65:  *     Author: David B. Golub, Carnegie Mellon University
        !            66:  *     Date:   7/90
        !            67:  */
        !            68: 
        !            69: /*
        !            70:  * Miscellaneous printing.
        !            71:  */
        !            72: #include "param.h"
        !            73: #include "proc.h"
        !            74: 
        !            75: #include <machine/db_machdep.h>
        !            76: 
        !            77: #include <ddb/db_lex.h>
        !            78: #include <ddb/db_variables.h>
        !            79: #include <ddb/db_sym.h>
        !            80: 
        !            81: extern unsigned int    db_maxoff;
        !            82: 
        !            83: void
        !            84: db_show_regs()
        !            85: {
        !            86:        int     (*func)();
        !            87:        register struct db_variable *regp;
        !            88:        db_expr_t       value, offset;
        !            89:        char *          name;
        !            90: 
        !            91:        for (regp = db_regs; regp < db_eregs; regp++) {
        !            92:            db_read_variable(regp, &value);
        !            93:            db_printf("%-12s%#10n", regp->name, value);
        !            94:            db_find_xtrn_sym_and_offset((db_addr_t)value, &name, &offset);
        !            95:            if (name != 0 && offset <= db_maxoff && offset != value) {
        !            96:                db_printf("\t%s", name);
        !            97:                if (offset != 0)
        !            98:                    db_printf("+%#r", offset);
        !            99:            }
        !           100:            db_printf("\n");
        !           101:        }
        !           102:        db_print_loc_and_inst(PC_REGS(DDB_REGS));
        !           103: }
        !           104: 

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