external/bsd/libdwarf/dist/dwarf_abbrev.c

   1 /*      $NetBSD$        */
   2
   3 /*-
   4  * Copyright (c) 2007 John Birrell (jb@freebsd.org)
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  * $FreeBSD: src/lib/libdwarf/dwarf_abbrev.c,v 1.1.4.1 2009/08/03 08:13:06 kensmith Exp $
  29  */
  30
  31 #include <stdlib.h>
  32 #include "_libdwarf.h"
  33
  34 int
  35 dwarf_abbrev_add(Dwarf_CU cu, uint64_t entry, uint64_t tag, uint8_t children, Dwarf_Abbrev *ap, Dwarf_Error *error)
  36 {
  37         Dwarf_Abbrev a;
  38         int ret = DWARF_E_NONE;
  39
  40         if ((a = malloc(sizeof(struct _Dwarf_Abbrev))) == NULL) {
  41                 DWARF_SET_ERROR(error, DWARF_E_MEMORY);
  42                 return DWARF_E_MEMORY;
  43         }
  44
  45         /* Initialise the abbrev structure. */
  46         a->a_entry      = entry;
  47         a->a_tag        = tag;
  48         a->a_children   = children;
  49
  50         /* Initialise the list of attributes. */
  51         STAILQ_INIT(&a->a_attrib);
  52
  53         /* Add the abbrev to the list in the compilation unit. */
  54         STAILQ_INSERT_TAIL(&cu->cu_abbrev, a, a_next);
  55
  56         if (ap != NULL)
  57                 *ap = a;
  58
  59         return ret;
  60 }
  61
  62 Dwarf_Abbrev
  63 dwarf_abbrev_find(Dwarf_CU cu, uint64_t entry)
  64 {
  65         Dwarf_Abbrev a = NULL;
  66
  67         STAILQ_FOREACH(a, &cu->cu_abbrev, a_next) {
  68                 if (a->a_entry == entry)
  69                         break;
  70         }
  71
  72         return a;
  73 }