bfd/host-aout.c

   1 /* BFD backend for local host's a.out binaries
   2    Copyright (C) 1990-2023 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22 #include "sysdep.h"
  23 #include "bfd.h"
  24 #include "libbfd.h"
  25
  26 #define ARCH_SIZE       32
  27
  28 /* When porting to a new system, you must supply:
  29
  30         HOST_PAGE_SIZE          (optional)
  31         HOST_SEGMENT_SIZE       (optional -- defaults to page size)
  32         HOST_MACHINE_ARCH       (optional)
  33         HOST_MACHINE_MACHINE    (optional)
  34         HOST_TEXT_START_ADDR    (optional)
  35         HOST_STACK_END_ADDR     (not used, except by trad-core ???)
  36         HOST_BIG_ENDIAN_P       (required -- define if big-endian)
  37
  38    in the ./hosts/h-systemname.h file.  */
  39
  40 #ifdef TRAD_HEADER
  41 #include TRAD_HEADER
  42 #endif
  43
  44 #ifdef                  HOST_PAGE_SIZE
  45 #define TARGET_PAGE_SIZE        HOST_PAGE_SIZE
  46 #endif
  47
  48 #ifdef                  HOST_SEGMENT_SIZE
  49 #define SEGMENT_SIZE    HOST_SEGMENT_SIZE
  50 #else
  51 #define SEGMENT_SIZE    TARGET_PAGE_SIZE
  52 #endif
  53
  54 #ifdef                  HOST_TEXT_START_ADDR
  55 #define TEXT_START_ADDR HOST_TEXT_START_ADDR
  56 #endif
  57
  58 #ifdef                  HOST_STACK_END_ADDR
  59 #define STACK_END_ADDR  HOST_STACK_END_ADDR
  60 #endif
  61
  62 #ifdef                  HOST_BIG_ENDIAN_P
  63 #define TARGET_IS_BIG_ENDIAN_P
  64 #else
  65 #undef  TARGET_IS_BIG_ENDIAN_P
  66 #endif
  67
  68 #include "libaout.h"           /* BFD a.out internal data structures */
  69 #include "aout/aout64.h"
  70
  71 #ifdef HOST_MACHINE_ARCH
  72 #ifdef HOST_MACHINE_MACHINE
  73 #define SET_ARCH_MACH(abfd, execp) \
  74   bfd_default_set_arch_mach(abfd, HOST_MACHINE_ARCH, HOST_MACHINE_MACHINE)
  75 #else
  76 #define SET_ARCH_MACH(abfd, execp) \
  77   bfd_default_set_arch_mach(abfd, HOST_MACHINE_ARCH, 0)
  78 #endif
  79 #endif /* HOST_MACHINE_ARCH */
  80
  81 /* Do not "beautify" the CONCAT* macro args.  Traditional C will not
  82    remove whitespace added here, and thus will fail to concatenate
  83    the tokens.  */
  84 #define MY(OP) CONCAT2 (host_aout_,OP)
  85 #define TARGETNAME "a.out"
  86
  87 #include "aout-target.h"