1 /*** bfd backend for NewsOS3 (Sony, 68k) binaries */
3 /* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Diddler.
7 BFD 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 1, or (at your option)
12 BFD 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.
17 You should have received a copy of the GNU General Public License
18 along with BFD; see the file COPYING. If not, write to
19 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
21 #define TARGET_BYTE_ORDER_BIG_P 1
28 int vfprintf(file, format, args) /* Temporary crock! */
29 FILE *file; char *format; char *args;
31 return _doprnt (format, args, file);
34 #define PAGE_SIZE 4096
35 #define SEGMENT_SIZE 0x2000 /* FIXME, is this right?? */
36 #define TEXT_START_ADDR PAGE_SIZE
38 #include "a.out.gnu.h"
41 #include "liba.out.h" /* BFD a.out internal data structures */
43 bfd_target *newsos3_callback ();
46 newsos3_object_p (abfd)
49 unsigned char magicbuf[LONG_SIZE]; /* Raw bytes of magic number from file */
50 unsigned long magic; /* Swapped magic number */
52 bfd_error = system_call_error;
54 if (bfd_read ((PTR)magicbuf, 1, sizeof (magicbuf), abfd) !=
57 magic = bfd_h_getlong (abfd, magicbuf);
59 if (N_BADMAG (*((struct exec *) &magic))) return 0;
61 return some_aout_object_p (abfd, newsos3_callback);
64 /* Finish up the reading of a NEWS-OS a.out file header */
66 newsos3_callback (abfd)
69 struct exec *execp = exec_hdr (abfd);
71 /* The virtual memory addresses of the sections */
72 obj_datasec (abfd)->vma = N_DATADDR(*execp);
73 obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
74 obj_textsec (abfd)->vma = N_TXTADDR(*execp);
76 /* The file offsets of the sections */
77 obj_textsec (abfd)->filepos = N_TXTOFF(*execp);
78 obj_datasec (abfd)->filepos = N_DATOFF(*execp);
80 /* The file offsets of the relocation info */
81 obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp);
82 obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp);
84 /* The file offsets of the string table and symbol table. */
85 obj_str_filepos (abfd) = N_STROFF (*execp);
86 obj_sym_filepos (abfd) = N_SYMOFF (*execp);
88 /* Determine the architecture and machine type of the object file. */
89 abfd->obj_arch = bfd_arch_m68k;
90 abfd->obj_machine = 0;
95 /* Write an object file in NEWS-OS format.
96 Section contents have already been written. We write the
97 file header, symbols, and relocation. */
100 newsos3_write_object_contents (abfd)
104 unsigned char exec_bytes[EXEC_BYTES_SIZE];
105 struct exec *execp = exec_hdr (abfd);
107 execp->a_text = obj_textsec (abfd)->size;
109 if (abfd->flags & D_PAGED)
110 execp->a_info = ZMAGIC;
111 else if (abfd->flags & WP_TEXT)
112 execp->a_info = NMAGIC;
114 execp->a_info = OMAGIC;
116 if (abfd->flags & D_PAGED)
118 data_pad = ((obj_datasec(abfd)->size + PAGE_SIZE -1)
119 & (- PAGE_SIZE)) - obj_datasec(abfd)->size;
121 if (data_pad > obj_bsssec(abfd)->size)
124 execp->a_bss = obj_bsssec(abfd)->size - data_pad;
125 execp->a_data = obj_datasec(abfd)->size + data_pad;
129 execp->a_data = obj_datasec (abfd)->size;
130 execp->a_bss = obj_bsssec (abfd)->size;
133 execp->a_syms = bfd_get_symcount (abfd) * sizeof (struct nlist);
134 execp->a_entry = bfd_get_start_address (abfd);
136 execp->a_trsize = ((obj_textsec (abfd)->reloc_count) *
137 obj_reloc_entry_size (abfd));
139 execp->a_drsize = ((obj_datasec (abfd)->reloc_count) *
140 obj_reloc_entry_size (abfd));
142 bfd_aout_swap_exec_header_out (abfd, execp, exec_bytes);
144 bfd_seek (abfd, 0L, false);
145 bfd_write ((PTR) exec_bytes, 1, EXEC_BYTES_SIZE, abfd);
147 /* Now write out reloc info, followed by syms and strings */
149 if (bfd_get_symcount (abfd) != 0)
151 bfd_seek (abfd, (long)(N_SYMOFF(*execp)), false);
152 aout_write_syms (abfd);
154 bfd_seek (abfd, (long)(N_TRELOFF(*execp)), false);
155 if (!aout_squirt_out_relocs (abfd, obj_textsec (abfd))) return false;
157 bfd_seek (abfd, (long)(N_DRELOFF(*execp)), false);
158 if (!aout_squirt_out_relocs (abfd, obj_datasec (abfd))) return false;
163 /* Transfer vectors for NEWS-OS version 3 */
165 /* We use BFD generic archive files. */
166 #define aout_openr_next_archived_file bfd_generic_openr_next_archived_file
167 #define aout_generic_stat_arch_elt bfd_generic_stat_arch_elt
168 #define aout_slurp_armap bfd_slurp_bsd_armap
169 #define aout_slurp_extended_name_table bfd_true
170 #define aout_write_armap bsd_write_armap
171 #define aout_truncate_arname bfd_bsd_truncate_arname
173 /* We don't support core files yet. FIXME. */
174 #define aout_core_file_failing_command _bfd_dummy_core_file_failing_command
175 #define aout_core_file_failing_signal _bfd_dummy_core_file_failing_signal
176 #define aout_core_file_matches_executable_p \
177 _bfd_dummy_core_file_matches_executable_p
178 #define aout_core_file_p _bfd_dummy_target
180 /* We define our own versions of these routines. */
183 bfd_target newsos3_vec = /* Sony 68k-based machines running newos3 */
185 "a.out-newos3", /* name */
186 bfd_target_aout_flavour_enum,
187 true, /* target byte order */
188 true, /* target headers byte order */
189 (HAS_RELOC | EXEC_P | /* object flags */
190 HAS_LINENO | HAS_DEBUG |
191 HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
192 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
193 ' ', /* ar_pad_char */
194 16, /* ar_max_namelen */
196 _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* data */
197 _do_getblong, _do_putblong, _do_getbshort, _do_putbshort, /* hdrs */
199 {_bfd_dummy_target, newsos3_object_p, /* bfd_check_format */
200 bfd_generic_archive_p, aout_core_file_p},
201 {bfd_false, aout_mkobject, /* bfd_set_format */
202 _bfd_generic_mkarchive, bfd_false},
203 {bfd_false, newsos3_write_object_contents, /* bfd_write_contents */
204 _bfd_write_archive_contents, bfd_false},