bfd/freebsd.h

   1 /* BFD back-end definitions used by all FreeBSD targets.
   2    Copyright (C) 1990, 1991, 1992, 1996 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
  21 /* FreeBSD ZMAGIC files never have the header in the text. */
  22 #define N_HEADER_IN_TEXT(x)     0
  23
  24 /* ZMAGIC files start at offset 0.  Does not apply to QMAGIC files. */
  25 #define TEXT_START_ADDR         0
  26
  27 #define N_GETMAGIC_NET(exec) \
  28         ((exec).a_info & 0xffff)
  29 #define N_GETMID_NET(exec) \
  30         (((exec).a_info >> 16) & 0x3ff)
  31 #define N_GETFLAG_NET(ex) \
  32         (((exec).a_info >> 26) & 0x3f)
  33
  34 #define N_MACHTYPE(exec) \
  35         ((enum machine_type) \
  36          ((N_GETMAGIC_NET (exec) == ZMAGIC) ? N_GETMID_NET (exec) : \
  37           ((exec).a_info >> 16) & 0x3ff))
  38 #define N_FLAGS(exec) \
  39         ((N_GETMAGIC_NET (exec) == ZMAGIC) ? N_GETFLAG_NET (exec) : \
  40          ((exec).a_info >> 26) & 0x3f)
  41
  42 #define N_SET_INFO(exec, magic, type, flags) \
  43         ((exec).a_info = ((magic) & 0xffff) \
  44          | (((int)(type) & 0x3ff) << 16) \
  45          | (((flags) & 0x3f) << 26))
  46 #define N_SET_MACHTYPE(exec, machtype) \
  47         ((exec).a_info = \
  48          ((exec).a_info & 0xfb00ffff) | ((((int)(machtype))&0x3ff) << 16))
  49 #define N_SET_FLAGS(exec, flags) \
  50         ((exec).a_info = \
  51          ((exec).a_info & 0x03ffffff) | ((flags & 0x03f) << 26))
  52
  53 #include "bfd.h"
  54 #include "sysdep.h"
  55 #include "libbfd.h"
  56 #include "libaout.h"
  57
  58 /* On FreeBSD, the magic number is always in i386 (little-endian)
  59    format.  I think.  */
  60 #define SWAP_MAGIC(ext) bfd_getl32 (ext)
  61
  62
  63 #define MY_write_object_contents MY(write_object_contents)
  64 static boolean MY(write_object_contents) PARAMS ((bfd *abfd));
  65
  66 #include "aout-target.h"
  67
  68 /* Write an object file.
  69    Section contents have already been written.  We write the
  70    file header, symbols, and relocation.  */
  71
  72 static boolean
  73 MY(write_object_contents) (abfd)
  74      bfd *abfd;
  75 {
  76   struct external_exec exec_bytes;
  77   struct internal_exec *execp = exec_hdr (abfd);
  78
  79 #if CHOOSE_RELOC_SIZE
  80   CHOOSE_RELOC_SIZE(abfd);
  81 #else
  82   obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
  83 #endif
  84
  85   /* Magic number, maestro, please!  */
  86   switch (bfd_get_arch(abfd)) {
  87   case bfd_arch_m68k:
  88     if (strcmp (abfd->xvec->name, "a.out-m68k4k-netbsd") == 0)
  89       N_SET_MACHTYPE(*execp, M_68K4K_NETBSD);
  90     else
  91       N_SET_MACHTYPE(*execp, M_68K_NETBSD);
  92     break;
  93   case bfd_arch_sparc:
  94     N_SET_MACHTYPE(*execp, M_SPARC_NETBSD);
  95     break;
  96   case bfd_arch_i386:
  97     N_SET_MACHTYPE(*execp, M_386_NETBSD);
  98     break;
  99   case bfd_arch_ns32k:
 100     N_SET_MACHTYPE(*execp, M_532_NETBSD);
 101     break;
 102   default:
 103     N_SET_MACHTYPE(*execp, M_UNKNOWN);
 104     break;
 105   }
 106
 107   WRITE_HEADERS(abfd, execp);
 108
 109   return true;
 110 }