1 /* BFD back-end for NetBSD/386 a.out-ish binaries.
2 Copyright (C) 1990, 1991, 1992 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
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 2 of the License, or
9 (at your option) any later version.
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.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
20 #define BYTES_IN_WORD 4
23 /* ZMAGIC files never have the header in the text. */
24 #define N_HEADER_IN_TEXT(x) 0
26 /* ZMAGIC files start at address 0. This does not apply to QMAGIC. */
27 #define TEXT_START_ADDR 0
28 #define N_SHARED_LIB(x) 0
30 #define PAGE_SIZE 4096
31 #define SEGMENT_SIZE PAGE_SIZE
33 #define DEFAULT_ARCH bfd_arch_i386
34 #define MACHTYPE_OK(mtype) ((mtype) == M_386 || (mtype) == M_386_NETBSD || (mtype) == M_UNKNOWN)
36 #define MY(OP) CAT(netbsd386_,OP)
37 /* This needs to start with a.out so GDB knows it is an a.out variant. */
38 #define TARGETNAME "a.out-netbsd-386"
41 ( (((ex).a_info)&0xffff0000) ? ((((ex).a_info))&0xffff) : ((ex).a_info))
42 #define N_MACHTYPE(ex) \
43 ( (((ex).a_info)&0xffff0000) ? (((((ex).a_info))>>16)&0x03ff) : 0 )
44 # define N_FLAGS(ex) \
45 ( (((ex).a_info)&0xffff0000) ? ((((ex).a_info)>>26)&0x3f) : 0 )
46 #define N_SET_INFO(ex, mag,mid,flag) \
47 ( (ex).a_info = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
49 #define N_SET_MAGIC(exec,magic) \
50 ((exec).a_info = (((exec).a_info & ~0xffff) | ((magic) & 0xffff)))
51 #define N_SET_MACHTYPE(exec,machtype) \
53 (((exec).a_info & ~(0x3ff<<16)) | (((machtype)&0xff) << 16)))
54 #define N_SET_FLAGS(exec, flags) \
55 ((exec).a_info = ((exec).a_info & 0xffff) | (flags & 0xffff))
62 #define N_GETMAGIC2(ex) \
63 ( (((ex).a_info)&0xffff0000) ? ((((ex).a_info))&0xffff) : \
64 (((ex).a_info) | 0x10000) )
66 #define N_TXTADDR(ex) (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : 4096)
67 #define N_TXTOFF(ex) \
68 ( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
69 0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? 4096 : EXEC_BYTES_SIZE ))
70 #define N_ALIGN(ex,x) \
71 (N_MAGIC(ex) == ZMAGIC || N_MAGIC(ex) == QMAGIC ? \
72 ((x) + 4096 - 1) & ~(4096 - 1) : (x))
73 #define N_DATADDR(ex) \
74 N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text)
75 /* Data segment offset. */
76 #define N_DATOFF(ex) \
77 N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
79 /* #define N_BADMAG(x) n_badmag(N_MAGIC(x)) */
81 /* On NetBSD, the magic number is always in ntohl's "network" (big-endian)
83 #define SWAP_MAGIC(ext) bfd_getb32 (ext)
85 #include "aout-target.h"
93 unsigned char c
[sizeof(unsigned long)];
97 printf ("x = %o, OMAGIC = %o, NMAGIC = %o, ZMAGIC = %o, QMAGIC = %o\n",
98 x
, OMAGIC
, NMAGIC
, ZMAGIC
, QMAGIC
);
107 printf ("\tbyte-swapped(x) = %o\n", l
.l
);
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