kernel/krtld/kobj_lm.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 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 /*
  30  * krtld link maps
  31  */
  32
  33 #include <sys/kobj.h>
  34 #include <sys/kobj_impl.h>
  35 #include <sys/modctl.h>
  36 #include <sys/types.h>
  37
  38 #pragma weak primaries = kobj_linkmaps  /* backwards compatibility */
  39 struct modctl_list *kobj_linkmaps[] = {
  40         NULL,
  41         NULL,
  42         NULL
  43 };
  44
  45 #define KOBJ_LM_NENT    (sizeof (kobj_linkmaps) / sizeof (struct modctl *) - 1)
  46
  47 struct modctl_list *
  48 kobj_lm_lookup(int lmid)
  49 {
  50         if (lmid < 0 || lmid >= KOBJ_LM_NENT)
  51                 return (NULL);
  52
  53         return (kobj_linkmaps[lmid]);
  54 }
  55
  56 void
  57 kobj_lm_append(int lmid, struct modctl *modp)
  58 {
  59         struct modctl_list **lpp, *lp;
  60
  61         if (lmid < 0 || lmid >= KOBJ_LM_NENT)
  62                 return;
  63
  64         lpp = &kobj_linkmaps[lmid];
  65
  66         lp = kobj_zalloc(sizeof (struct modctl_list), KM_WAIT);
  67         lp->modl_modp = modp;
  68
  69         if (*lpp == NULL) {
  70                 *lpp = lp;
  71         } else {
  72                 struct modctl_list *last;
  73
  74                 for (last = *lpp; last->modl_next != NULL;
  75                     last = last->modl_next)
  76                         /* */;
  77
  78                 last->modl_next = lp;
  79         }
  80 }
  81
  82 void
  83 kobj_lm_dump(int lmid)
  84 {
  85         struct modctl_list *lp;
  86
  87         for (lp = kobj_lm_lookup(lmid); lp; lp = lp->modl_next) {
  88                 struct module *mp = lp->modl_modp->mod_mp;
  89
  90                 _kobj_printf(ops, "module %s: ", mp->filename);
  91                 _kobj_printf(ops, "text at [0x%p, ", mp->text);
  92                 _kobj_printf(ops, "0x%lx] ", (uintptr_t)mp->text +
  93                     mp->text_size - 1);
  94                 _kobj_printf(ops, "data at 0x%p\n", mp->data);
  95         }
  96 }