freebsd.h revision 33965 
1/* BFD back-end definitions used by all FreeBSD targets.
2   Copyright (C) 1990, 1991, 1992, 1996 Free Software Foundation, Inc.
3
4This file is part of BFD, the Binary File Descriptor library.
5
6This program is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2 of the License, or
9(at your option) any later version.
10
11This program is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with this program; if not, write to the Free Software
18Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19*/
20
21/* FreeBSD ZMAGIC files never have the header in the text. */
22#define	N_HEADER_IN_TEXT(x)	0
23
24/* ZMAGIC files start at offset 0.  Does not apply to QMAGIC files. */
25#define TEXT_START_ADDR		0
26
27#define N_GETMAGIC_NET(exec) \
28	((exec).a_info & 0xffff)
29#define N_GETMID_NET(exec) \
30	(((exec).a_info >> 16) & 0x3ff)
31#define N_GETFLAG_NET(ex) \
32	(((exec).a_info >> 26) & 0x3f)
33
34#define N_MACHTYPE(exec) \
35	((enum machine_type) \
36	 ((N_GETMAGIC_NET (exec) == ZMAGIC) ? N_GETMID_NET (exec) : \
37	  ((exec).a_info >> 16) & 0x3ff))
38#define N_FLAGS(exec) \
39	((N_GETMAGIC_NET (exec) == ZMAGIC) ? N_GETFLAG_NET (exec) : \
40	 ((exec).a_info >> 26) & 0x3f)
41
42#define N_SET_INFO(exec, magic, type, flags) \
43	((exec).a_info = ((magic) & 0xffff) \
44	 | (((int)(type) & 0x3ff) << 16) \
45	 | (((flags) & 0x3f) << 26))
46#define N_SET_MACHTYPE(exec, machtype) \
47	((exec).a_info = \
48         ((exec).a_info & 0xfb00ffff) | ((((int)(machtype))&0x3ff) << 16))
49#define N_SET_FLAGS(exec, flags) \
50	((exec).a_info = \
51	 ((exec).a_info & 0x03ffffff) | ((flags & 0x03f) << 26))
52
53#include "bfd.h"
54#include "sysdep.h"
55#include "libbfd.h"
56#include "libaout.h"
57
58/* On FreeBSD, the magic number is always in ntohl's "network" (big-endian)
59   format.  I think.  */
60#define SWAP_MAGIC(ext) bfd_getb32 (ext)
61
62
63#define MY_write_object_contents MY(write_object_contents)
64static boolean MY(write_object_contents) PARAMS ((bfd *abfd));
65
66#include "aout-target.h"
67
68/* Write an object file.
69   Section contents have already been written.  We write the
70   file header, symbols, and relocation.  */
71
72static boolean
73MY(write_object_contents) (abfd)
74     bfd *abfd;
75{
76  struct external_exec exec_bytes;
77  struct internal_exec *execp = exec_hdr (abfd);
78
79#if CHOOSE_RELOC_SIZE
80  CHOOSE_RELOC_SIZE(abfd);
81#else
82  obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
83#endif
84
85  /* Magic number, maestro, please!  */
86  switch (bfd_get_arch(abfd)) {
87  case bfd_arch_m68k:
88    if (strcmp (abfd->xvec->name, "a.out-m68k4k-netbsd") == 0)
89      N_SET_MACHTYPE(*execp, M_68K4K_NETBSD);
90    else
91      N_SET_MACHTYPE(*execp, M_68K_NETBSD);
92    break;
93  case bfd_arch_sparc:
94    N_SET_MACHTYPE(*execp, M_SPARC_NETBSD);
95    break;
96  case bfd_arch_i386:
97    N_SET_MACHTYPE(*execp, M_386_NETBSD);
98    break;
99  case bfd_arch_ns32k:
100    N_SET_MACHTYPE(*execp, M_532_NETBSD);
101    break;
102  default:
103    N_SET_MACHTYPE(*execp, M_UNKNOWN);
104    break;
105  }
106
107  WRITE_HEADERS(abfd, execp);
108
109  return true;
110}
111