bfd/pc532-mach.c

   1 /* BFD back-end for Mach3/532 a.out-ish binaries.
   2    Copyright (C) 1990-2024 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"