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

   1 /*      $NetBSD: dwarf_pro_sections.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_sections.c,v 1.2 2014/03/09 16:58:04 christos Exp $");
  32 ELFTC_VCSID("Id: dwarf_pro_sections.c 2074 2011-10-27 03:34:33Z jkoshy ");
  33
  34 Dwarf_Signed
  35 dwarf_transform_to_disk_form(Dwarf_P_Debug dbg, Dwarf_Error *error)
  36 {
  37
  38         if (dbg == NULL) {
  39                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
  40                 return (DW_DLV_NOCOUNT);
  41         }
  42
  43         if (_dwarf_generate_sections(dbg, error) != DW_DLE_NONE)
  44                 return (DW_DLV_NOCOUNT);
  45
  46         return (dbg->dbgp_seccnt);
  47 }
  48
  49 Dwarf_Ptr
  50 dwarf_get_section_bytes(Dwarf_P_Debug dbg, Dwarf_Signed dwarf_section,
  51     Dwarf_Signed *elf_section_index, Dwarf_Unsigned *length, Dwarf_Error *error)
  52 {
  53         Dwarf_Ptr data;
  54
  55         (void) dwarf_section;   /* ignored. */
  56
  57         if (dbg == NULL || elf_section_index == NULL || length == NULL) {
  58                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
  59                 return (NULL);
  60         }
  61
  62         if (dbg->dbgp_secpos == NULL) {
  63                 DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
  64                 return (NULL);
  65         }
  66
  67         *elf_section_index = dbg->dbgp_secpos->ds_ndx;
  68         *length = dbg->dbgp_secpos->ds_size;
  69         data = dbg->dbgp_secpos->ds_data;
  70
  71         dbg->dbgp_secpos = STAILQ_NEXT(dbg->dbgp_secpos, ds_next);
  72
  73         return (data);
  74 }
  75
  76 void
  77 dwarf_reset_section_bytes(Dwarf_P_Debug dbg)
  78 {
  79
  80         assert(dbg != NULL);
  81
  82         dbg->dbgp_secpos = STAILQ_FIRST(&dbg->dbgp_seclist);
  83         dbg->dbgp_drspos = STAILQ_FIRST(&dbg->dbgp_drslist);
  84 }