bfd/elf32-qnx.h

   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
  18    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20   /* Returns the end address of the segment + 1.  */
  21 #define SEGMENT_END(segment, start)                     \
  22   (start + (segment->p_memsz > segment->p_filesz        \
  23    ? segment->p_memsz : segment->p_filesz))
  24
  25 static boolean elf_qnx_copy_private_bfd_data_p
  26   PARAMS ((bfd *, asection *, bfd *, asection *));
  27 static boolean elf_qnx_is_contained_by_filepos
  28   PARAMS ((asection *, Elf_Internal_Phdr *));
  29 static void elf_qnx_set_nonloadable_filepos
  30   PARAMS ((bfd *, Elf_Internal_Phdr *));
  31
  32 static boolean
  33 elf_qnx_copy_private_bfd_data_p (ibfd, isec, obfd, osec)
  34      bfd *ibfd;
  35      asection *isec;
  36      bfd *obfd;
  37      asection *osec;
  38 {
  39   /* We don't use these parameters, but another target might.  */
  40   ibfd = ibfd;
  41   obfd = obfd;
  42   osec = osec;
  43
  44   return isec->next == NULL;
  45 }
  46
  47 static boolean
  48 elf_qnx_is_contained_by_filepos (section, segment)
  49      asection *section;
  50      Elf_Internal_Phdr *segment;
  51 {
  52   return ((bfd_vma) section->filepos >= segment->p_offset
  53           && ((bfd_vma) section->filepos + section->_raw_size
  54               <= SEGMENT_END (segment, segment->p_offset)));
  55 }
  56
  57 static void
  58 elf_qnx_set_nonloadable_filepos (abfd, phdrs)
  59      bfd *abfd;
  60      Elf_Internal_Phdr *phdrs;
  61 {
  62   struct elf_segment_map *m;
  63   Elf_Internal_Phdr *p;
  64   file_ptr off = 0;
  65
  66   for (m = elf_tdata (abfd)->segment_map, p = phdrs;
  67        m != NULL;
  68        m = m->next, p++)
  69     {
  70       unsigned int i;
  71       asection **secpp;
  72
  73       for (i = 0, secpp = m->sections; i < m->count; i++, secpp++)
  74         {
  75           asection *sec;
  76
  77           sec = *secpp;
  78
  79           if (p->p_type == PT_LOAD)
  80             off = sec->filepos;
  81           else
  82             {
  83               if (i == 0)
  84                 {
  85                   if (sec->filepos)
  86                     p->p_offset = sec->filepos;
  87                   else
  88                     p->p_offset = off;
  89                 }
  90               if (!sec->filepos)
  91                 {
  92                   off += sec->_raw_size;
  93                   p->p_filesz += sec->_raw_size;
  94                 }
  95             }
  96         }
  97     }
  98   return;
  99 }
 100
 101 #ifndef elf_backend_set_nonloadable_filepos
 102 #define elf_backend_set_nonloadable_filepos elf_qnx_set_nonloadable_filepos
 103 #endif
 104
 105 #ifndef elf_backend_is_contained_by_filepos
 106 #define elf_backend_is_contained_by_filepos elf_qnx_is_contained_by_filepos
 107 #endif
 108
 109 #ifndef elf_backend_copy_private_bfd_data_p
 110 #define elf_backend_copy_private_bfd_data_p elf_qnx_copy_private_bfd_data_p
 111 #endif