bfd/elf32-qnx.c

   1 /* QNX specific support for 32-bit ELF
   2    Copyright 2002  Free Software Foundation, Inc.
   3
   4    This file is part of BFD, the Binary File Descriptor library.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software Foundation,
  18    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #include "bfd.h"
  21 #include "sysdep.h"
  22 #include "elf-bfd.h"
  23 #include "elf32-qnx.h"
  24
  25 /* Returns the end address of the segment + 1.  */
  26 #define SEGMENT_END(segment, start)                     \
  27   (start + (segment->p_memsz > segment->p_filesz        \
  28    ? segment->p_memsz : segment->p_filesz))
  29
  30 boolean
  31 elf_qnx_copy_private_bfd_data_p (ibfd, isec, obfd, osec)
  32      bfd *ibfd ATTRIBUTE_UNUSED;
  33      asection *isec;
  34      bfd *obfd ATTRIBUTE_UNUSED;
  35      asection *osec ATTRIBUTE_UNUSED;
  36 {
  37   return isec->next == NULL;
  38 }
  39
  40 boolean
  41 elf_qnx_is_contained_by_filepos (section, segment)
  42      asection *section;
  43      Elf_Internal_Phdr *segment;
  44 {
  45   return ((bfd_vma) section->filepos >= segment->p_offset
  46           && ((bfd_vma) section->filepos + section->_raw_size
  47               <= SEGMENT_END (segment, segment->p_offset)));
  48 }
  49
  50 void
  51 elf_qnx_set_nonloadable_filepos (abfd, phdrs)
  52      bfd *abfd;
  53      Elf_Internal_Phdr *phdrs;
  54 {
  55   struct elf_segment_map *m;
  56   Elf_Internal_Phdr *p;
  57   file_ptr off = 0;
  58
  59   for (m = elf_tdata (abfd)->segment_map, p = phdrs;
  60        m != NULL;
  61        m = m->next, p++)
  62     {
  63       unsigned int i;
  64       asection **secpp;
  65
  66       for (i = 0, secpp = m->sections; i < m->count; i++, secpp++)
  67         {
  68           asection *sec;
  69
  70           sec = *secpp;
  71
  72           if (p->p_type == PT_LOAD)
  73             off = sec->filepos;
  74           else
  75             {
  76               if (i == 0)
  77                 {
  78                   if (sec->filepos)
  79                     p->p_offset = sec->filepos;
  80                   else
  81                     p->p_offset = off;
  82                 }
  83               if (!sec->filepos)
  84                 {
  85                   off += sec->_raw_size;
  86                   p->p_filesz += sec->_raw_size;
  87                 }
  88             }
  89         }
  90     }
  91   return;
  92 }