1/* BFD support for Sparc binaries under LynxOS.
2   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000,
3   2001, 2002, 2003, 2005, 2007 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/* Do not "beautify" the CONCAT* macro args.  Traditional C will not
24   remove whitespace added here, and thus will fail to concatenate
25   the tokens.  */
26#define MY(OP) CONCAT2 (sparclynx_aout_,OP)
27#define TARGETNAME "a.out-sparc-lynx"
28
29#include "sysdep.h"
30#include "bfd.h"
31#include "libbfd.h"
32
33#include "aout/sun4.h"
34#include "libaout.h"		/* BFD a.out internal data structures */
35
36#include "aout/aout64.h"
37#include "aout/stab_gnu.h"
38#include "aout/ar.h"
39
40void NAME (lynx,set_arch_mach) PARAMS ((bfd *, unsigned long));
41static void choose_reloc_size PARAMS ((bfd *));
42static bfd_boolean NAME (aout,sparclynx_write_object_contents) PARAMS ((bfd *));
43
44/* This is needed to reject a NewsOS file, e.g. in
45   gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com>
46   I needed to add M_UNKNOWN to recognize a 68000 object, so this will
47   probably no longer reject a NewsOS object.  <ian@cygnus.com>.  */
48#define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \
49			    || (mtype) == M_68010 \
50			    || (mtype) == M_68020 \
51			    || (mtype) == M_SPARC)
52
53/* The file @code{aoutf1.h} contains the code for BFD's
54   a.out back end. Control over the generated back end is given by these
55   two preprocessor names:
56   @table @code
57   @item ARCH_SIZE
58   This value should be either 32 or 64, depending upon the size of an
59   int in the target format. It changes the sizes of the structs which
60   perform the memory/disk mapping of structures.
61
62   The 64 bit backend may only be used if the host compiler supports 64
63   ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}.
64   With this name defined, @emph{all} bfd operations are performed with 64bit
65   arithmetic, not just those to a 64bit target.
66
67   @item TARGETNAME
68   The name put into the target vector.
69   @item
70   @end table  */
71
72void
73NAME(lynx,set_arch_mach) (abfd, machtype)
74     bfd *abfd;
75     unsigned long machtype;
76{
77  /* Determine the architecture and machine type of the object file.  */
78  enum bfd_architecture arch;
79  unsigned long machine;
80
81  switch (machtype)
82    {
83    case M_UNKNOWN:
84      /* Some Sun3s make magic numbers without cpu types in them, so
85	 we'll default to the 68000.  */
86      arch = bfd_arch_m68k;
87      machine = bfd_mach_m68000;
88      break;
89
90    case M_68010:
91    case M_HP200:
92      arch = bfd_arch_m68k;
93      machine = bfd_mach_m68010;
94      break;
95
96    case M_68020:
97    case M_HP300:
98      arch = bfd_arch_m68k;
99      machine = bfd_mach_m68020;
100      break;
101
102    case M_SPARC:
103      arch = bfd_arch_sparc;
104      machine = 0;
105      break;
106
107    case M_386:
108    case M_386_DYNIX:
109      arch = bfd_arch_i386;
110      machine = 0;
111      break;
112
113    case M_HPUX:
114      arch = bfd_arch_m68k;
115      machine = 0;
116      break;
117
118    default:
119      arch = bfd_arch_obscure;
120      machine = 0;
121      break;
122    }
123  bfd_set_arch_mach (abfd, arch, machine);
124}
125
126#define SET_ARCH_MACH(ABFD, EXEC) \
127  NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \
128  choose_reloc_size(ABFD);
129
130/* Determine the size of a relocation entry, based on the architecture.  */
131
132static void
133choose_reloc_size (abfd)
134     bfd *abfd;
135{
136  switch (bfd_get_arch (abfd))
137    {
138    case bfd_arch_sparc:
139      obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
140      break;
141    default:
142      obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
143      break;
144    }
145}
146
147/* Write an object file in LynxOS format.
148  Section contents have already been written.  We write the
149  file header, symbols, and relocation.  */
150
151static bfd_boolean
152NAME(aout,sparclynx_write_object_contents) (abfd)
153     bfd *abfd;
154{
155  struct external_exec exec_bytes;
156  struct internal_exec *execp = exec_hdr (abfd);
157
158  /* Magic number, maestro, please!  */
159  switch (bfd_get_arch (abfd))
160    {
161    case bfd_arch_m68k:
162      switch (bfd_get_mach (abfd))
163	{
164	case bfd_mach_m68010:
165	  N_SET_MACHTYPE (*execp, M_68010);
166	  break;
167	default:
168	case bfd_mach_m68020:
169	  N_SET_MACHTYPE (*execp, M_68020);
170	  break;
171	}
172      break;
173    case bfd_arch_sparc:
174      N_SET_MACHTYPE (*execp, M_SPARC);
175      break;
176    case bfd_arch_i386:
177      N_SET_MACHTYPE (*execp, M_386);
178      break;
179    default:
180      N_SET_MACHTYPE (*execp, M_UNKNOWN);
181    }
182
183  choose_reloc_size (abfd);
184
185  N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
186
187  WRITE_HEADERS (abfd, execp);
188
189  return TRUE;
190}
191
192#define MY_set_sizes sparclynx_set_sizes
193static bfd_boolean sparclynx_set_sizes PARAMS ((bfd *));
194
195static bfd_boolean
196sparclynx_set_sizes (abfd)
197     bfd *abfd;
198{
199  switch (bfd_get_arch (abfd))
200    {
201    default:
202      return FALSE;
203    case bfd_arch_sparc:
204      adata (abfd).page_size = 0x2000;
205      adata (abfd).segment_size = 0x2000;
206      adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
207      return TRUE;
208    case bfd_arch_m68k:
209      adata (abfd).page_size = 0x2000;
210      adata (abfd).segment_size = 0x20000;
211      adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
212      return TRUE;
213    }
214}
215
216static const struct aout_backend_data sparclynx_aout_backend =
217  {
218    0, 1, 0, 1, 0, sparclynx_set_sizes, 0,
219    0,				/* add_dynamic_symbols */
220    0,				/* add_one_symbol */
221    0,				/* link_dynamic_object */
222    0,				/* write_dynamic_symbol */
223    0,				/* check_dynamic_reloc */
224    0				/* finish_dynamic_link */
225  };
226
227
228#define MY_bfd_debug_info_start		bfd_void
229#define MY_bfd_debug_info_end		bfd_void
230#define MY_bfd_debug_info_accumulate	\
231		(void (*) PARAMS ((bfd *, struct bfd_section *))) bfd_void
232
233#define MY_write_object_contents	NAME(aout,sparclynx_write_object_contents)
234#define MY_backend_data			&sparclynx_aout_backend
235
236#define TARGET_IS_BIG_ENDIAN_P
237
238#ifdef LYNX_CORE
239
240char * lynx_core_file_failing_command ();
241int lynx_core_file_failing_signal ();
242bfd_boolean lynx_core_file_matches_executable_p ();
243const bfd_target * lynx_core_file_p ();
244
245#define	MY_core_file_failing_command lynx_core_file_failing_command
246#define	MY_core_file_failing_signal lynx_core_file_failing_signal
247#define	MY_core_file_matches_executable_p lynx_core_file_matches_executable_p
248#define	MY_core_file_p lynx_core_file_p
249
250#endif /* LYNX_CORE */
251
252#include "aout-target.h"
253