contrib/elftoolchain/libdwarf/dwarf_pro_sections.c

   1 /*-
   2  * Copyright (c) 2010 Kai Wang
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include "_libdwarf.h"
  28
  29 ELFTC_VCSID("$Id: dwarf_pro_sections.c 2074 2011-10-27 03:34:33Z jkoshy $");
  30
  31 Dwarf_Signed
  32 dwarf_transform_to_disk_form(Dwarf_P_Debug dbg, Dwarf_Error *error)
  33 {
  34
  35         if (dbg == NULL) {
  36                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
  37                 return (DW_DLV_NOCOUNT);
  38         }
  39
  40         if (_dwarf_generate_sections(dbg, error) != DW_DLE_NONE)
  41                 return (DW_DLV_NOCOUNT);
  42
  43         return (dbg->dbgp_seccnt);
  44 }
  45
  46 Dwarf_Ptr
  47 dwarf_get_section_bytes(Dwarf_P_Debug dbg, Dwarf_Signed dwarf_section,
  48     Dwarf_Signed *elf_section_index, Dwarf_Unsigned *length, Dwarf_Error *error)
  49 {
  50         Dwarf_Ptr data;
  51
  52         (void) dwarf_section;   /* ignored. */
  53
  54         if (dbg == NULL || elf_section_index == NULL || length == NULL) {
  55                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
  56                 return (NULL);
  57         }
  58
  59         if (dbg->dbgp_secpos == NULL) {
  60                 DWARF_SET_ERROR(dbg, error, DW_DLE_NO_ENTRY);
  61                 return (NULL);
  62         }
  63
  64         *elf_section_index = dbg->dbgp_secpos->ds_ndx;
  65         *length = dbg->dbgp_secpos->ds_size;
  66         data = dbg->dbgp_secpos->ds_data;
  67
  68         dbg->dbgp_secpos = STAILQ_NEXT(dbg->dbgp_secpos, ds_next);
  69
  70         return (data);
  71 }
  72
  73 void
  74 dwarf_reset_section_bytes(Dwarf_P_Debug dbg)
  75 {
  76
  77         assert(dbg != NULL);
  78
  79         dbg->dbgp_secpos = STAILQ_FIRST(&dbg->dbgp_seclist);
  80         dbg->dbgp_drspos = STAILQ_FIRST(&dbg->dbgp_drslist);
  81 }