pc532-mach.c revision 1.1 
1/* BFD back-end for Mach3/532 a.out-ish binaries.
2   Copyright 1990, 1991, 1992, 1994, 1995, 2000, 2001, 2002, 2005, 2007, 2009
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/* Written by Ian Dall
24              19-Apr-94
25
26   Formerly part of aout-pc532-mach.c. Split out to allow more
27   flexibility with multiple formats.  */
28
29/* This architecture has N_TXTOFF and N_TXTADDR defined as if
30   N_HEADER_IN_TEXT, but the a_text entry (text size) does not include the
31   space for the header. So we have N_HEADER_IN_TEXT defined to
32   1 and specially define our own N_TXTSIZE.  */
33
34#define N_HEADER_IN_TEXT(x) 1
35#define N_TXTSIZE(x) ((x).a_text)
36
37#define TEXT_START_ADDR 0x10000       /* from old ld */
38#define TARGET_PAGE_SIZE 0x1000       /* from old ld,  032 & 532 are really 512/4k */
39
40/* Use a_entry of 0 to distinguish object files from OMAGIC executables */
41#define N_TXTADDR(x) \
42  (N_MAGIC(x) == OMAGIC ? \
43   ((x).a_entry < TEXT_START_ADDR? 0: TEXT_START_ADDR): \
44   (N_MAGIC(x) == NMAGIC? TEXT_START_ADDR: \
45    TEXT_START_ADDR + EXEC_BYTES_SIZE))
46
47#define	SEGMENT_SIZE	TARGET_PAGE_SIZE
48
49#define SEGMENT_SIZE TARGET_PAGE_SIZE
50#define DEFAULT_ARCH bfd_arch_ns32k
51
52/* Do not "beautify" the CONCAT* macro args.  Traditional C will not
53   remove whitespace added here, and thus will fail to concatenate
54   the tokens.  */
55#define MY(OP) CONCAT2 (pc532machaout_,OP)
56
57/* Must be the same as aout-ns32k.c */
58#define NAME(x,y) CONCAT3 (ns32kaout,_32_,y)
59
60#define TARGETNAME "a.out-pc532-mach"
61
62#include "sysdep.h"
63#include "bfd.h"
64#include "libaout.h"
65#include "libbfd.h"
66#include "aout/aout64.h"
67
68#define MY_bfd_reloc_type_lookup ns32kaout_bfd_reloc_type_lookup
69
70/* libaout doesn't use NAME for these ...  */
71
72#define MY_get_section_contents aout_32_get_section_contents
73
74#define MY_text_includes_header 1
75
76#define MY_exec_header_not_counted 1
77
78reloc_howto_type *ns32kaout_bfd_reloc_type_lookup
79  (bfd *abfd, bfd_reloc_code_real_type code);
80
81static bfd_boolean
82MY(write_object_contents) (bfd *abfd)
83{
84  struct external_exec exec_bytes;
85  struct internal_exec *execp = exec_hdr (abfd);
86
87  obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
88
89  BFD_ASSERT (bfd_get_arch (abfd) == bfd_arch_ns32k);
90  switch (bfd_get_mach (abfd))
91    {
92    case 32032:
93      N_SET_MACHTYPE (*execp, M_NS32032);
94      break;
95    case 32532:
96    default:
97      N_SET_MACHTYPE (*execp, M_NS32532);
98      break;
99    }
100  N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
101
102  WRITE_HEADERS(abfd, execp);
103
104  return TRUE;
105}
106
107#define MY_write_object_contents MY(write_object_contents)
108
109#include "aout-target.h"
110