* config/tc-mn10200.c (md_parse_option <c, arg>): Add ATTRIBUTE_UNUSED.
[binutils.git] / bfd / sparclynx.c
blob84d9d4a9d0aa1b499eca1b2ee431b654598cf8db
1 /* BFD support for Sparc binaries under LynxOS.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000,
3 2001, 2002 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
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 2 of the License, or
10 (at your option) any later version.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 #if 0
22 #define BYTES_IN_WORD 4
23 #define N_SHARED_LIB(x) 0
25 #define TEXT_START_ADDR 0
26 #define TARGET_PAGE_SIZE 4096
27 #define SEGMENT_SIZE TARGET_PAGE_SIZE
28 #define DEFAULT_ARCH bfd_arch_sparc
30 #endif
32 /* Do not "beautify" the CONCAT* macro args. Traditional C will not
33 remove whitespace added here, and thus will fail to concatenate
34 the tokens. */
35 #define MY(OP) CONCAT2 (sparclynx_aout_,OP)
36 #define TARGETNAME "a.out-sparc-lynx"
38 #include "bfd.h"
39 #include "sysdep.h"
40 #include "libbfd.h"
42 #include "aout/sun4.h"
43 #include "libaout.h" /* BFD a.out internal data structures */
45 #include "aout/aout64.h"
46 #include "aout/stab_gnu.h"
47 #include "aout/ar.h"
49 void NAME (lynx,set_arch_mach) PARAMS ((bfd *, unsigned long));
50 static void choose_reloc_size PARAMS ((bfd *));
51 static bfd_boolean NAME (aout,sparclynx_write_object_contents) PARAMS ((bfd *));
53 /* This is needed to reject a NewsOS file, e.g. in
54 gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com>
55 I needed to add M_UNKNOWN to recognize a 68000 object, so this will
56 probably no longer reject a NewsOS object. <ian@cygnus.com>. */
57 #define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \
58 || (mtype) == M_68010 \
59 || (mtype) == M_68020 \
60 || (mtype) == M_SPARC)
62 /* The file @code{aoutf1.h} contains the code for BFD's
63 a.out back end. Control over the generated back end is given by these
64 two preprocessor names:
65 @table @code
66 @item ARCH_SIZE
67 This value should be either 32 or 64, depending upon the size of an
68 int in the target format. It changes the sizes of the structs which
69 perform the memory/disk mapping of structures.
71 The 64 bit backend may only be used if the host compiler supports 64
72 ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}.
73 With this name defined, @emph{all} bfd operations are performed with 64bit
74 arithmetic, not just those to a 64bit target.
76 @item TARGETNAME
77 The name put into the target vector.
78 @item
79 @end table */
81 void
82 NAME(lynx,set_arch_mach) (abfd, machtype)
83 bfd *abfd;
84 unsigned long machtype;
86 /* Determine the architecture and machine type of the object file. */
87 enum bfd_architecture arch;
88 unsigned long machine;
90 switch (machtype)
92 case M_UNKNOWN:
93 /* Some Sun3s make magic numbers without cpu types in them, so
94 we'll default to the 68000. */
95 arch = bfd_arch_m68k;
96 machine = bfd_mach_m68000;
97 break;
99 case M_68010:
100 case M_HP200:
101 arch = bfd_arch_m68k;
102 machine = bfd_mach_m68010;
103 break;
105 case M_68020:
106 case M_HP300:
107 arch = bfd_arch_m68k;
108 machine = bfd_mach_m68020;
109 break;
111 case M_SPARC:
112 arch = bfd_arch_sparc;
113 machine = 0;
114 break;
116 case M_386:
117 case M_386_DYNIX:
118 arch = bfd_arch_i386;
119 machine = 0;
120 break;
122 case M_29K:
123 arch = bfd_arch_a29k;
124 machine = 0;
125 break;
127 case M_HPUX:
128 arch = bfd_arch_m68k;
129 machine = 0;
130 break;
132 default:
133 arch = bfd_arch_obscure;
134 machine = 0;
135 break;
137 bfd_set_arch_mach (abfd, arch, machine);
140 #define SET_ARCH_MACH(ABFD, EXEC) \
141 NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \
142 choose_reloc_size(ABFD);
144 /* Determine the size of a relocation entry, based on the architecture. */
146 static void
147 choose_reloc_size (abfd)
148 bfd *abfd;
150 switch (bfd_get_arch (abfd))
152 case bfd_arch_sparc:
153 case bfd_arch_a29k:
154 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
155 break;
156 default:
157 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
158 break;
162 /* Write an object file in LynxOS format.
163 Section contents have already been written. We write the
164 file header, symbols, and relocation. */
166 static bfd_boolean
167 NAME(aout,sparclynx_write_object_contents) (abfd)
168 bfd *abfd;
170 struct external_exec exec_bytes;
171 struct internal_exec *execp = exec_hdr (abfd);
173 /* Magic number, maestro, please! */
174 switch (bfd_get_arch (abfd))
176 case bfd_arch_m68k:
177 switch (bfd_get_mach (abfd))
179 case bfd_mach_m68010:
180 N_SET_MACHTYPE (*execp, M_68010);
181 break;
182 default:
183 case bfd_mach_m68020:
184 N_SET_MACHTYPE (*execp, M_68020);
185 break;
187 break;
188 case bfd_arch_sparc:
189 N_SET_MACHTYPE (*execp, M_SPARC);
190 break;
191 case bfd_arch_i386:
192 N_SET_MACHTYPE (*execp, M_386);
193 break;
194 case bfd_arch_a29k:
195 N_SET_MACHTYPE (*execp, M_29K);
196 break;
197 default:
198 N_SET_MACHTYPE (*execp, M_UNKNOWN);
201 choose_reloc_size (abfd);
203 N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
205 WRITE_HEADERS (abfd, execp);
207 return TRUE;
210 #define MY_set_sizes sparclynx_set_sizes
211 static bfd_boolean sparclynx_set_sizes PARAMS ((bfd *));
213 static bfd_boolean
214 sparclynx_set_sizes (abfd)
215 bfd *abfd;
217 switch (bfd_get_arch (abfd))
219 default:
220 return FALSE;
221 case bfd_arch_sparc:
222 adata (abfd).page_size = 0x2000;
223 adata (abfd).segment_size = 0x2000;
224 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
225 return TRUE;
226 case bfd_arch_m68k:
227 adata (abfd).page_size = 0x2000;
228 adata (abfd).segment_size = 0x20000;
229 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
230 return TRUE;
234 static const struct aout_backend_data sparclynx_aout_backend =
236 0, 1, 0, 1, 0, sparclynx_set_sizes, 0,
237 0, /* add_dynamic_symbols */
238 0, /* add_one_symbol */
239 0, /* link_dynamic_object */
240 0, /* write_dynamic_symbol */
241 0, /* check_dynamic_reloc */
242 0 /* finish_dynamic_link */
246 #define MY_bfd_debug_info_start bfd_void
247 #define MY_bfd_debug_info_end bfd_void
248 #define MY_bfd_debug_info_accumulate \
249 (void (*) PARAMS ((bfd *, struct sec *))) bfd_void
251 #define MY_write_object_contents NAME(aout,sparclynx_write_object_contents)
252 #define MY_backend_data &sparclynx_aout_backend
254 #define TARGET_IS_BIG_ENDIAN_P
256 #ifdef LYNX_CORE
258 char * lynx_core_file_failing_command ();
259 int lynx_core_file_failing_signal ();
260 bfd_boolean lynx_core_file_matches_executable_p ();
261 const bfd_target * lynx_core_file_p ();
263 #define MY_core_file_failing_command lynx_core_file_failing_command
264 #define MY_core_file_failing_signal lynx_core_file_failing_signal
265 #define MY_core_file_matches_executable_p lynx_core_file_matches_executable_p
266 #define MY_core_file_p lynx_core_file_p
268 #endif /* LYNX_CORE */
270 #include "aout-target.h"