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"