external/bsd/elftoolchain/dist/libdwarf/dwarf_pro_arange.c

   1 /*      $NetBSD: dwarf_pro_arange.c,v 1.2 2014/03/09 16:58:04 christos Exp $    */
   2
   3 /*-
   4  * Copyright (c) 2010 Kai Wang
   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
  29 #include "_libdwarf.h"
  30
  31 __RCSID("$NetBSD: dwarf_pro_arange.c,v 1.2 2014/03/09 16:58:04 christos Exp $");
  32 ELFTC_VCSID("Id: dwarf_pro_arange.c 2074 2011-10-27 03:34:33Z jkoshy ");
  33
  34 Dwarf_Unsigned
  35 dwarf_add_arange(Dwarf_P_Debug dbg, Dwarf_Addr start, Dwarf_Unsigned length,
  36     Dwarf_Signed symbol_index, Dwarf_Error *error)
  37 {
  38
  39         return (dwarf_add_arange_b(dbg, start, length, symbol_index, 0, 0,
  40             error));
  41 }
  42
  43 Dwarf_Unsigned
  44 dwarf_add_arange_b(Dwarf_P_Debug dbg, Dwarf_Addr start, Dwarf_Unsigned length,
  45     Dwarf_Unsigned symbol_index, Dwarf_Unsigned end_symbol_index,
  46     Dwarf_Addr offset_from_end_symbol, Dwarf_Error *error)
  47 {
  48         Dwarf_ArangeSet as;
  49         Dwarf_Arange ar;
  50
  51         if (dbg == NULL) {
  52                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
  53                 return (0);
  54         }
  55         as = dbg->dbgp_as;
  56
  57         if (end_symbol_index > 0 &&
  58             (dbg->dbgp_flags & DW_DLC_SYMBOLIC_RELOCATIONS) == 0) {
  59                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
  60                 return (0);
  61         }
  62
  63         if ((ar = calloc(1, sizeof(struct _Dwarf_Arange))) == NULL) {
  64                 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
  65                 return (0);
  66         }
  67         ar->ar_as = as;
  68         ar->ar_address = start;
  69         ar->ar_range = length;
  70         ar->ar_symndx = symbol_index;
  71         ar->ar_esymndx = end_symbol_index;
  72         ar->ar_eoff = offset_from_end_symbol;
  73         STAILQ_INSERT_TAIL(&as->as_arlist, ar, ar_next);
  74
  75         return (1);
  76 }