1 /* BFD support for Sparc binaries under LynxOS.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000,
3 2001, 2002, 2003, 2005 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 2 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, MA 02110-1301, USA. */
20
21 /* Do not "beautify" the CONCAT* macro args. Traditional C will not
22 remove whitespace added here, and thus will fail to concatenate
23 the tokens. */
24 #define MY(OP) CONCAT2 (sparclynx_aout_,OP)
25 #define TARGETNAME "a.out-sparc-lynx"
26
27 #include "bfd.h"
28 #include "sysdep.h"
29 #include "libbfd.h"
30
31 #include "aout/sun4.h"
32 #include "libaout.h" /* BFD a.out internal data structures */
33
34 #include "aout/aout64.h"
35 #include "aout/stab_gnu.h"
36 #include "aout/ar.h"
37
38 void NAME (lynx,set_arch_mach) PARAMS ((bfd *, unsigned long));
39 static void choose_reloc_size PARAMS ((bfd *));
40 static bfd_boolean NAME (aout,sparclynx_write_object_contents) PARAMS ((bfd *));
41
42 /* This is needed to reject a NewsOS file, e.g. in
43 gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com>
44 I needed to add M_UNKNOWN to recognize a 68000 object, so this will
45 probably no longer reject a NewsOS object. <ian@cygnus.com>. */
46 #define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \
47 || (mtype) == M_68010 \
48 || (mtype) == M_68020 \
49 || (mtype) == M_SPARC)
50
51 /* The file @code{aoutf1.h} contains the code for BFD's
52 a.out back end. Control over the generated back end is given by these
53 two preprocessor names:
54 @table @code
55 @item ARCH_SIZE
56 This value should be either 32 or 64, depending upon the size of an
57 int in the target format. It changes the sizes of the structs which
58 perform the memory/disk mapping of structures.
59
60 The 64 bit backend may only be used if the host compiler supports 64
61 ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}.
62 With this name defined, @emph{all} bfd operations are performed with 64bit
63 arithmetic, not just those to a 64bit target.
64
65 @item TARGETNAME
66 The name put into the target vector.
67 @item
68 @end table */
69
70 void
71 NAME(lynx,set_arch_mach) (abfd, machtype)
72 bfd *abfd;
73 unsigned long machtype;
74 {
75 /* Determine the architecture and machine type of the object file. */
76 enum bfd_architecture arch;
77 unsigned long machine;
78
79 switch (machtype)
80 {
81 case M_UNKNOWN:
82 /* Some Sun3s make magic numbers without cpu types in them, so
83 we'll default to the 68000. */
84 arch = bfd_arch_m68k;
85 machine = bfd_mach_m68000;
86 break;
87
88 case M_68010:
89 case M_HP200:
90 arch = bfd_arch_m68k;
91 machine = bfd_mach_m68010;
92 break;
93
94 case M_68020:
95 case M_HP300:
96 arch = bfd_arch_m68k;
97 machine = bfd_mach_m68020;
98 break;
99
100 case M_SPARC:
101 arch = bfd_arch_sparc;
102 machine = 0;
103 break;
104
105 case M_386:
106 case M_386_DYNIX:
107 arch = bfd_arch_i386;
108 machine = 0;
109 break;
110
111 case M_HPUX:
112 arch = bfd_arch_m68k;
113 machine = 0;
114 break;
115
116 default:
117 arch = bfd_arch_obscure;
118 machine = 0;
119 break;
120 }
121 bfd_set_arch_mach (abfd, arch, machine);
122 }
123
124 #define SET_ARCH_MACH(ABFD, EXEC) \
125 NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \
126 choose_reloc_size(ABFD);
127
128 /* Determine the size of a relocation entry, based on the architecture. */
129
130 static void
choose_reloc_size(abfd)131 choose_reloc_size (abfd)
132 bfd *abfd;
133 {
134 switch (bfd_get_arch (abfd))
135 {
136 case bfd_arch_sparc:
137 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
138 break;
139 default:
140 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
141 break;
142 }
143 }
144
145 /* Write an object file in LynxOS format.
146 Section contents have already been written. We write the
147 file header, symbols, and relocation. */
148
149 static bfd_boolean
150 NAME(aout,sparclynx_write_object_contents) (abfd)
151 bfd *abfd;
152 {
153 struct external_exec exec_bytes;
154 struct internal_exec *execp = exec_hdr (abfd);
155
156 /* Magic number, maestro, please! */
157 switch (bfd_get_arch (abfd))
158 {
159 case bfd_arch_m68k:
160 switch (bfd_get_mach (abfd))
161 {
162 case bfd_mach_m68010:
163 N_SET_MACHTYPE (*execp, M_68010);
164 break;
165 default:
166 case bfd_mach_m68020:
167 N_SET_MACHTYPE (*execp, M_68020);
168 break;
169 }
170 break;
171 case bfd_arch_sparc:
172 N_SET_MACHTYPE (*execp, M_SPARC);
173 break;
174 case bfd_arch_i386:
175 N_SET_MACHTYPE (*execp, M_386);
176 break;
177 default:
178 N_SET_MACHTYPE (*execp, M_UNKNOWN);
179 }
180
181 choose_reloc_size (abfd);
182
183 N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
184
185 WRITE_HEADERS (abfd, execp);
186
187 return TRUE;
188 }
189
190 #define MY_set_sizes sparclynx_set_sizes
191 static bfd_boolean sparclynx_set_sizes PARAMS ((bfd *));
192
193 static bfd_boolean
sparclynx_set_sizes(abfd)194 sparclynx_set_sizes (abfd)
195 bfd *abfd;
196 {
197 switch (bfd_get_arch (abfd))
198 {
199 default:
200 return FALSE;
201 case bfd_arch_sparc:
202 adata (abfd).page_size = 0x2000;
203 adata (abfd).segment_size = 0x2000;
204 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
205 return TRUE;
206 case bfd_arch_m68k:
207 adata (abfd).page_size = 0x2000;
208 adata (abfd).segment_size = 0x20000;
209 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
210 return TRUE;
211 }
212 }
213
214 static const struct aout_backend_data sparclynx_aout_backend =
215 {
216 0, 1, 0, 1, 0, sparclynx_set_sizes, 0,
217 0, /* add_dynamic_symbols */
218 0, /* add_one_symbol */
219 0, /* link_dynamic_object */
220 0, /* write_dynamic_symbol */
221 0, /* check_dynamic_reloc */
222 0 /* finish_dynamic_link */
223 };
224
225
226 #define MY_bfd_debug_info_start bfd_void
227 #define MY_bfd_debug_info_end bfd_void
228 #define MY_bfd_debug_info_accumulate \
229 (void (*) PARAMS ((bfd *, struct bfd_section *))) bfd_void
230
231 #define MY_write_object_contents NAME(aout,sparclynx_write_object_contents)
232 #define MY_backend_data &sparclynx_aout_backend
233
234 #define TARGET_IS_BIG_ENDIAN_P
235
236 #ifdef LYNX_CORE
237
238 char * lynx_core_file_failing_command ();
239 int lynx_core_file_failing_signal ();
240 bfd_boolean lynx_core_file_matches_executable_p ();
241 const bfd_target * lynx_core_file_p ();
242
243 #define MY_core_file_failing_command lynx_core_file_failing_command
244 #define MY_core_file_failing_signal lynx_core_file_failing_signal
245 #define MY_core_file_matches_executable_p lynx_core_file_matches_executable_p
246 #define MY_core_file_p lynx_core_file_p
247
248 #endif /* LYNX_CORE */
249
250 #include "aout-target.h"
251