1  /* BFD back-end for Mach3/532 a.out-ish binaries.
       2     Copyright (C) 1990-2023 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  /* Written by Ian Dall
      23  	      19-Apr-94
      24  
      25     Formerly part of aout-pc532-mach.c. Split out to allow more
      26     flexibility with multiple formats.  */
      27  
      28  /* This architecture has N_TXTOFF and N_TXTADDR defined as if
      29     N_HEADER_IN_TEXT, but the a_text entry (text size) does not include the
      30     space for the header. So we have N_HEADER_IN_TEXT defined to
      31     1 and specially define our own N_TXTSIZE.  */
      32  
      33  #define N_HEADER_IN_TEXT(x) 1
      34  #define N_TXTSIZE(x) ((x)->a_text)
      35  
      36  #define TEXT_START_ADDR 0x10000       /* from old ld */
      37  #define TARGET_PAGE_SIZE 0x1000       /* from old ld,  032 & 532 are really 512/4k */
      38  
      39  /* Use a_entry of 0 to distinguish object files from OMAGIC executables */
      40  #define N_TXTADDR(x) \
      41    (N_MAGIC(x) == OMAGIC ? \
      42     ((x)->a_entry < TEXT_START_ADDR? 0: TEXT_START_ADDR): \
      43     (N_MAGIC(x) == NMAGIC? TEXT_START_ADDR: \
      44      TEXT_START_ADDR + EXEC_BYTES_SIZE))
      45  
      46  #define	SEGMENT_SIZE	TARGET_PAGE_SIZE
      47  
      48  #define SEGMENT_SIZE TARGET_PAGE_SIZE
      49  #define DEFAULT_ARCH bfd_arch_ns32k
      50  
      51  /* Do not "beautify" the CONCAT* macro args.  Traditional C will not
      52     remove whitespace added here, and thus will fail to concatenate
      53     the tokens.  */
      54  #define MY(OP) CONCAT2 (ns32k_aout_pc532mach_,OP)
      55  
      56  /* Must be the same as aout-ns32k.c */
      57  #define NAME(x,y) CONCAT3 (ns32kaout,_32_,y)
      58  
      59  #define TARGETNAME "a.out-pc532-mach"
      60  
      61  #include "sysdep.h"
      62  #include "bfd.h"
      63  #include "libaout.h"
      64  #include "libbfd.h"
      65  #include "aout/aout64.h"
      66  
      67  #define MY_bfd_reloc_type_lookup ns32k_aout_bfd_reloc_type_lookup
      68  
      69  /* libaout doesn't use NAME for these ...  */
      70  
      71  #define MY_get_section_contents aout_32_get_section_contents
      72  
      73  #define MY_text_includes_header 1
      74  
      75  #define MY_exec_header_not_counted 1
      76  
      77  reloc_howto_type *MY_bfd_reloc_type_lookup
      78    (bfd *abfd, bfd_reloc_code_real_type code);
      79  
      80  static bool
      81  MY(write_object_contents) (bfd *abfd)
      82  {
      83    struct external_exec exec_bytes;
      84    struct internal_exec *execp = exec_hdr (abfd);
      85  
      86    obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
      87  
      88    BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_ns32k);
      89    switch (bfd_get_mach (abfd))
      90      {
      91      case 32032:
      92        N_SET_MACHTYPE (execp, M_NS32032);
      93        break;
      94      case 32532:
      95      default:
      96        N_SET_MACHTYPE (execp, M_NS32532);
      97        break;
      98      }
      99    N_SET_FLAGS (execp, aout_backend_info (abfd)->exec_hdr_flags);
     100  
     101    WRITE_HEADERS (abfd, execp);
     102  
     103    return true;
     104  }
     105  
     106  #define MY_write_object_contents MY(write_object_contents)
     107  
     108  #include "aout-target.h"