bfd/host-aout.c

   1 /* BFD backend for local host's a.out binaries
   2    Copyright (C) 1990-1991 Free Software Foundation, Inc.
   3    Written by Cygnus Support.  Probably John Gilmore's fault.
   4
   5 This file is part of BFD, the Binary File Descriptor library.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 #include "bfd.h"
  22 #include "sysdep.h"
  23 #include "libbfd.h"
  24
  25 #define ARCH_SIZE       32
  26
  27 /* When porting to a new system, you must supply:
  28
  29         HOST_PAGE_SIZE          (optional)
  30         HOST_SEGMENT_SIZE       (optional -- defaults to page size)
  31         HOST_MACHINE_ARCH       (optional)
  32         HOST_MACHINE_MACHINE    (optional)
  33         HOST_TEXT_START_ADDR    (optional)
  34         HOST_STACK_END_ADDR     (not used, except by trad-core ???)
  35         HOST_SHORT_HEADER_HACK  (optional)
  36
  37    in the ./hosts/h-systemname.h file.
  38
  39    For most of these, you can get by with the values computed
  40    by the program aout-gen, which writes the result into aout-params.h. */
  41
  42 #include "aout-params.h"
  43
  44 #ifdef HOST_PAGE_SIZE
  45 #define PAGE_SIZE       HOST_PAGE_SIZE
  46 #endif
  47 #ifdef HOST_SEGMENT_SIZE
  48 #define SEGMENT_SIZE    HOST_SEGMENT_SIZE
  49 #else
  50 #define SEGMENT_SIZE    PAGE_SIZE
  51 #endif
  52 #ifdef HOST_TEXT_START_ADDR
  53 #define TEXT_START_ADDR HOST_TEXT_START_ADDR
  54 #endif
  55 #ifdef HOST_STACK_END_ADDR
  56 #define STACK_END_ADDR  HOST_STACK_END_ADDR
  57 #endif
  58 #ifndef N_HEADER_IN_TEXT
  59 #ifdef  HOST_SHORT_HEADER_HACK
  60 #define N_HEADER_IN_TEXT(x) 1
  61 #else
  62 #define N_HEADER_IN_TEXT(x) 0
  63 #endif
  64 #endif
  65
  66 #include "libaout.h"           /* BFD a.out internal data structures */
  67 #include "aout/aout64.h"
  68
  69 #ifdef HOST_MACHINE_ARCH
  70 #ifdef HOST_MACHINE_MACHINE
  71 #define SET_ARCH_MACH(abfd, execp) \
  72   bfd_default_set_arch_mach(abfd, HOST_MACHINE_ARCH, HOST_MACHINE_MACHINE)
  73 #else
  74 #define SET_ARCH_MACH(abfd, execp) \
  75   bfd_default_set_arch_mach(abfd, HOST_MACHINE_ARCH, 0)
  76 #endif
  77 #endif /* HOST_MACHINE_ARCH */
  78
  79 #define MY(OP) CAT(host_aout_,OP)
  80 #define TARGETNAME "a.out"
  81
  82 #include "aout-target.h"