1 /* BFD back-end for Mach3/532 a.out-ish binaries.
2 Copyright (C) 1990-2016 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 bfd_boolean
MY(write_object_contents)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"
109