bfd/freebsd.h

   1 /* BFD back-end definitions used by all FreeBSD targets.
   2    Copyright (C) 1990-2015 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21
  22 /* FreeBSD ZMAGIC files never have the header in the text. */
  23 #define N_HEADER_IN_TEXT(x)     0
  24
  25 /* ZMAGIC files start at offset 0.  Does not apply to QMAGIC files. */
  26 #define TEXT_START_ADDR         0
  27
  28 #define N_GETMAGIC_NET(exec) \
  29         ((exec).a_info & 0xffff)
  30 #define N_GETMID_NET(exec) \
  31         (((exec).a_info >> 16) & 0x3ff)
  32 #define N_GETFLAG_NET(ex) \
  33         (((exec).a_info >> 26) & 0x3f)
  34
  35 #define N_MACHTYPE(exec) \
  36         ((enum machine_type) \
  37          ((N_GETMAGIC_NET (exec) == ZMAGIC) ? N_GETMID_NET (exec) : \
  38           ((exec).a_info >> 16) & 0x3ff))
  39 #define N_FLAGS(exec) \
  40         ((N_GETMAGIC_NET (exec) == ZMAGIC) ? N_GETFLAG_NET (exec) : \
  41          ((exec).a_info >> 26) & 0x3f)
  42
  43 #define N_SET_INFO(exec, magic, type, flags) \
  44         ((exec).a_info = ((magic) & 0xffff) \
  45          | (((int)(type) & 0x3ff) << 16) \
  46          | (((flags) & 0x3f) << 26))
  47 #define N_SET_MACHTYPE(exec, machtype) \
  48         ((exec).a_info = \
  49          ((exec).a_info & 0xfb00ffff) | ((((int) (machtype)) & 0x3ff) << 16))
  50 #define N_SET_FLAGS(exec, flags) \
  51         ((exec).a_info = \
  52          ((exec).a_info & 0x03ffffff) | ((flags & 0x03f) << 26))
  53
  54 #include "sysdep.h"
  55 #include "bfd.h"
  56 #include "libbfd.h"
  57 #include "libaout.h"
  58
  59 /* On FreeBSD, the magic number is always in i386 (little-endian)
  60    format.  I think.  */
  61 #define SWAP_MAGIC(ext) bfd_getl32 (ext)
  62
  63 #define MY_write_object_contents MY (write_object_contents)
  64 static bfd_boolean MY (write_object_contents) (bfd *);
  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 bfd_boolean
  73 MY (write_object_contents) (bfd *abfd)
  74 {
  75   struct external_exec exec_bytes;
  76   struct internal_exec *execp = exec_hdr (abfd);
  77
  78   obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
  79
  80   /* Magic number, maestro, please!  */
  81   switch (bfd_get_arch(abfd))
  82     {
  83     case bfd_arch_m68k:
  84       if (strcmp (abfd->xvec->name, "a.out-m68k4k-netbsd") == 0)
  85         N_SET_MACHTYPE (*execp, M_68K4K_NETBSD);
  86       else
  87         N_SET_MACHTYPE (*execp, M_68K_NETBSD);
  88       break;
  89     case bfd_arch_sparc:
  90       N_SET_MACHTYPE (*execp, M_SPARC_NETBSD);
  91       break;
  92     case bfd_arch_i386:
  93       N_SET_MACHTYPE (*execp, M_386_NETBSD);
  94       break;
  95     case bfd_arch_ns32k:
  96       N_SET_MACHTYPE (*execp, M_532_NETBSD);
  97       break;
  98     default:
  99       N_SET_MACHTYPE (*execp, M_UNKNOWN);
 100       break;
 101     }
 102
 103   WRITE_HEADERS(abfd, execp);
 104
 105   return TRUE;
 106 }