usr/src/cmd/mdb/common/modules/md/walk_nm.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27
  28 #include "mdinclude.h"
  29
  30 /*
  31  * walk the namespace
  32  */
  33 /* ARGSUSED */
  34 int
  35 namespace_walk_init(mdb_walk_state_t *wsp)
  36 {
  37         uintptr_t       addr;
  38
  39         snarf_sets();
  40         wsp->walk_data = mdb_alloc(sizeof (int), UM_SLEEP);
  41         /* cycle through sets, start with set 0 */
  42         *((int *)wsp->walk_data) = 0;
  43         addr = (uintptr_t)mdset[0].s_nm;
  44
  45         wsp->walk_addr = addr;
  46         return (WALK_NEXT);
  47 }
  48
  49 int
  50 namespace_walk_step(mdb_walk_state_t *wsp)
  51 {
  52         int     status;
  53         struct nm_header_hdr     hdr;
  54
  55         if (wsp->walk_addr == NULL) {
  56                 if (*((int *)wsp->walk_data) < md_nsets) {
  57                         *((int *)wsp->walk_data) += 1;
  58                         wsp->walk_addr =
  59                             (uintptr_t)mdset[*((int *)wsp->walk_data)].s_nm;
  60                         if (wsp->walk_addr == NULL)
  61                                 return (WALK_NEXT);
  62                 } else {
  63                         return (WALK_DONE);
  64                 }
  65         }
  66
  67         mdb_printf("Namespace for set number %d\n", *((int *)wsp->walk_data));
  68         if (mdb_vread(&hdr, sizeof (struct nm_header_hdr), wsp->walk_addr) !=
  69             sizeof (struct nm_header_hdr)) {
  70                 mdb_warn("failed to read nm_header_hdr at %p",
  71                     wsp->walk_addr);
  72                 return (WALK_DONE);
  73         }
  74
  75
  76
  77         status = wsp->walk_callback(wsp->walk_addr, (&hdr)->hh_header,
  78             wsp->walk_cbdata);
  79
  80         *((int *)wsp->walk_data) += 1;
  81         wsp->walk_addr = (uintptr_t)mdset[*((int *)wsp->walk_data)].s_nm;
  82         return (status);
  83 }
  84
  85 void
  86 namespace_walk_fini(mdb_walk_state_t *wsp)
  87 {
  88         mdb_free(wsp->walk_data, sizeof (int));
  89 }