1 /* BFD back-end definitions used by all FreeBSD targets.
2 Copyright 1990, 1991, 1992, 1996, 1997, 2000, 2001, 2002, 2005, 2007
3 Free Software Foundation, Inc.
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
23 /* FreeBSD ZMAGIC files never have the header in the text. */
24 #define N_HEADER_IN_TEXT(x) 0
25
26 /* ZMAGIC files start at offset 0. Does not apply to QMAGIC files. */
27 #define TEXT_START_ADDR 0
28
29 #define N_GETMAGIC_NET(exec) \
30 ((exec).a_info & 0xffff)
31 #define N_GETMID_NET(exec) \
32 (((exec).a_info >> 16) & 0x3ff)
33 #define N_GETFLAG_NET(ex) \
34 (((exec).a_info >> 26) & 0x3f)
35
36 #define N_MACHTYPE(exec) \
37 ((enum machine_type) \
38 ((N_GETMAGIC_NET (exec) == ZMAGIC) ? N_GETMID_NET (exec) : \
39 ((exec).a_info >> 16) & 0x3ff))
40 #define N_FLAGS(exec) \
41 ((N_GETMAGIC_NET (exec) == ZMAGIC) ? N_GETFLAG_NET (exec) : \
42 ((exec).a_info >> 26) & 0x3f)
43
44 #define N_SET_INFO(exec, magic, type, flags) \
45 ((exec).a_info = ((magic) & 0xffff) \
46 | (((int)(type) & 0x3ff) << 16) \
47 | (((flags) & 0x3f) << 26))
48 #define N_SET_MACHTYPE(exec, machtype) \
49 ((exec).a_info = \
50 ((exec).a_info & 0xfb00ffff) | ((((int) (machtype)) & 0x3ff) << 16))
51 #define N_SET_FLAGS(exec, flags) \
52 ((exec).a_info = \
53 ((exec).a_info & 0x03ffffff) | ((flags & 0x03f) << 26))
54
55 #include "sysdep.h"
56 #include "bfd.h"
57 #include "libbfd.h"
58 #include "libaout.h"
59
60 /* On FreeBSD, the magic number is always in i386 (little-endian)
61 format. I think. */
62 #define SWAP_MAGIC(ext) bfd_getl32 (ext)
63
64 #define MY_write_object_contents MY (write_object_contents)
65 static bfd_boolean MY (write_object_contents) (bfd *);
66
67 #include "aout-target.h"
68
69 /* Write an object file.
70 Section contents have already been written. We write the
71 file header, symbols, and relocation. */
72
73 static bfd_boolean
MY(write_object_contents)74 MY (write_object_contents) (bfd *abfd)
75 {
76 struct external_exec exec_bytes;
77 struct internal_exec *execp = exec_hdr (abfd);
78
79 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
80
81 /* Magic number, maestro, please! */
82 switch (bfd_get_arch(abfd))
83 {
84 case bfd_arch_m68k:
85 if (strcmp (abfd->xvec->name, "a.out-m68k4k-netbsd") == 0)
86 N_SET_MACHTYPE (*execp, M_68K4K_NETBSD);
87 else
88 N_SET_MACHTYPE (*execp, M_68K_NETBSD);
89 break;
90 case bfd_arch_sparc:
91 N_SET_MACHTYPE (*execp, M_SPARC_NETBSD);
92 break;
93 case bfd_arch_i386:
94 N_SET_MACHTYPE (*execp, M_386_NETBSD);
95 break;
96 case bfd_arch_ns32k:
97 N_SET_MACHTYPE (*execp, M_532_NETBSD);
98 break;
99 default:
100 N_SET_MACHTYPE (*execp, M_UNKNOWN);
101 break;
102 }
103
104 WRITE_HEADERS(abfd, execp);
105
106 return TRUE;
107 }
108