1/* BFD support for Sparc binaries under LynxOS.
2   Copyright (C) 1990-2017 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/* Do not "beautify" the CONCAT* macro args.  Traditional C will not
23   remove whitespace added here, and thus will fail to concatenate
24   the tokens.  */
25#define MY(OP) CONCAT2 (sparc_aout_lynx_,OP)
26#define TARGETNAME "a.out-sparc-lynx"
27
28#include "sysdep.h"
29#include "bfd.h"
30#include "libbfd.h"
31
32#include "aout/sun4.h"
33#include "libaout.h"		/* BFD a.out internal data structures */
34
35#include "aout/aout64.h"
36#include "aout/stab_gnu.h"
37#include "aout/ar.h"
38
39void NAME (lynx,set_arch_mach) (bfd *, unsigned long);
40static void choose_reloc_size (bfd *);
41static bfd_boolean NAME (aout,sparclynx_write_object_contents) (bfd *);
42
43/* This is needed to reject a NewsOS file, e.g. in
44   gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com>
45   I needed to add M_UNKNOWN to recognize a 68000 object, so this will
46   probably no longer reject a NewsOS object.  <ian@cygnus.com>.  */
47#define MACHTYPE_OK(mtype) (   (mtype) == M_UNKNOWN \
48			    || (mtype) == M_68010 \
49			    || (mtype) == M_68020 \
50			    || (mtype) == M_SPARC)
51
52/* The file @code{aoutf1.h} contains the code for BFD's
53   a.out back end. Control over the generated back end is given by these
54   two preprocessor names:
55   @table @code
56   @item ARCH_SIZE
57   This value should be either 32 or 64, depending upon the size of an
58   int in the target format. It changes the sizes of the structs which
59   perform the memory/disk mapping of structures.
60
61   The 64 bit backend may only be used if the host compiler supports 64
62   ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}.
63   With this name defined, @emph{all} bfd operations are performed with 64bit
64   arithmetic, not just those to a 64bit target.
65
66   @item TARGETNAME
67   The name put into the target vector.
68   @item
69   @end table  */
70
71void
72NAME(lynx,set_arch_mach) (bfd *abfd, unsigned long machtype)
73{
74  /* Determine the architecture and machine type of the object file.  */
75  enum bfd_architecture arch;
76  unsigned long machine;
77
78  switch (machtype)
79    {
80    case M_UNKNOWN:
81      /* Some Sun3s make magic numbers without cpu types in them, so
82	 we'll default to the 68000.  */
83      arch = bfd_arch_m68k;
84      machine = bfd_mach_m68000;
85      break;
86
87    case M_68010:
88    case M_HP200:
89      arch = bfd_arch_m68k;
90      machine = bfd_mach_m68010;
91      break;
92
93    case M_68020:
94    case M_HP300:
95      arch = bfd_arch_m68k;
96      machine = bfd_mach_m68020;
97      break;
98
99    case M_SPARC:
100      arch = bfd_arch_sparc;
101      machine = 0;
102      break;
103
104    case M_386:
105    case M_386_DYNIX:
106      arch = bfd_arch_i386;
107      machine = 0;
108      break;
109
110    case M_HPUX:
111      arch = bfd_arch_m68k;
112      machine = 0;
113      break;
114
115    default:
116      arch = bfd_arch_obscure;
117      machine = 0;
118      break;
119    }
120  bfd_set_arch_mach (abfd, arch, machine);
121}
122
123#define SET_ARCH_MACH(ABFD, EXECP) \
124  NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXECP)); \
125  choose_reloc_size(ABFD);
126
127/* Determine the size of a relocation entry, based on the architecture.  */
128
129static void
130choose_reloc_size (bfd *abfd)
131{
132  switch (bfd_get_arch (abfd))
133    {
134    case bfd_arch_sparc:
135      obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
136      break;
137    default:
138      obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
139      break;
140    }
141}
142
143/* Write an object file in LynxOS format.
144  Section contents have already been written.  We write the
145  file header, symbols, and relocation.  */
146
147static bfd_boolean
148NAME(aout,sparclynx_write_object_contents) (bfd *abfd)
149{
150  struct external_exec exec_bytes;
151  struct internal_exec *execp = exec_hdr (abfd);
152
153  /* Magic number, maestro, please!  */
154  switch (bfd_get_arch (abfd))
155    {
156    case bfd_arch_m68k:
157      switch (bfd_get_mach (abfd))
158	{
159	case bfd_mach_m68010:
160	  N_SET_MACHTYPE (execp, M_68010);
161	  break;
162	default:
163	case bfd_mach_m68020:
164	  N_SET_MACHTYPE (execp, M_68020);
165	  break;
166	}
167      break;
168    case bfd_arch_sparc:
169      N_SET_MACHTYPE (execp, M_SPARC);
170      break;
171    case bfd_arch_i386:
172      N_SET_MACHTYPE (execp, M_386);
173      break;
174    default:
175      N_SET_MACHTYPE (execp, M_UNKNOWN);
176    }
177
178  choose_reloc_size (abfd);
179
180  N_SET_FLAGS (execp, aout_backend_info (abfd)->exec_hdr_flags);
181
182  WRITE_HEADERS (abfd, execp);
183
184  return TRUE;
185}
186
187#define MY_set_sizes sparclynx_set_sizes
188static bfd_boolean sparclynx_set_sizes (bfd *);
189
190static bfd_boolean
191sparclynx_set_sizes (bfd *abfd)
192{
193  switch (bfd_get_arch (abfd))
194    {
195    default:
196      return FALSE;
197    case bfd_arch_sparc:
198      adata (abfd).page_size = 0x2000;
199      adata (abfd).segment_size = 0x2000;
200      adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
201      return TRUE;
202    case bfd_arch_m68k:
203      adata (abfd).page_size = 0x2000;
204      adata (abfd).segment_size = 0x20000;
205      adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
206      return TRUE;
207    }
208}
209
210static const struct aout_backend_data sparclynx_aout_backend =
211  {
212    0, 1, 0, 1, 0, sparclynx_set_sizes, 0,
213    0,				/* add_dynamic_symbols */
214    0,				/* add_one_symbol */
215    0,				/* link_dynamic_object */
216    0,				/* write_dynamic_symbol */
217    0,				/* check_dynamic_reloc */
218    0				/* finish_dynamic_link */
219  };
220
221
222#define MY_bfd_debug_info_start		bfd_void
223#define MY_bfd_debug_info_end		bfd_void
224#define MY_bfd_debug_info_accumulate	\
225		(void (*) (bfd *, struct bfd_section *)) bfd_void
226
227#define MY_write_object_contents	NAME(aout,sparclynx_write_object_contents)
228#define MY_backend_data			&sparclynx_aout_backend
229
230#define TARGET_IS_BIG_ENDIAN_P
231
232#ifdef LYNX_CORE
233
234char * lynx_core_file_failing_command ();
235int lynx_core_file_failing_signal ();
236bfd_boolean lynx_core_file_matches_executable_p ();
237const bfd_target * lynx_core_file_p ();
238
239#define	MY_core_file_failing_command lynx_core_file_failing_command
240#define	MY_core_file_failing_signal lynx_core_file_failing_signal
241#define	MY_core_file_matches_executable_p lynx_core_file_matches_executable_p
242#define	MY_core_file_p lynx_core_file_p
243
244#endif /* LYNX_CORE */
245
246#include "aout-target.h"
247