1 |
/* BFD library support routines for the Hitachi-SH architecture. |
/* BFD library support routines for the Renesas / SuperH SH architecture. |
2 |
Copyright 1993, 1994, 1997, 1998, 2000, 2001 |
Copyright 1993, 1994, 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005 |
3 |
Free Software Foundation, Inc. |
Free Software Foundation, Inc. |
4 |
Hacked by Steve Chamberlain of Cygnus Support. |
Hacked by Steve Chamberlain of Cygnus Support. |
5 |
|
|
6 |
This file is part of BFD, the Binary File Descriptor library. |
This file is part of BFD, the Binary File Descriptor library. |
7 |
|
|
8 |
This program is free software; you can redistribute it and/or modify |
This program is free software; you can redistribute it and/or modify |
9 |
it under the terms of the GNU General Public License as published by |
it under the terms of the GNU General Public License as published by |
10 |
the Free Software Foundation; either version 2 of the License, or |
the Free Software Foundation; either version 2 of the License, or |
11 |
(at your option) any later version. |
(at your option) any later version. |
12 |
|
|
13 |
This program is distributed in the hope that it will be useful, |
This program is distributed in the hope that it will be useful, |
14 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 |
GNU General Public License for more details. |
GNU General Public License for more details. |
17 |
|
|
18 |
You should have received a copy of the GNU General Public License |
You should have received a copy of the GNU General Public License |
19 |
along with this program; if not, write to the Free Software |
along with this program; if not, write to the Free Software |
20 |
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
21 |
|
|
22 |
#include "bfd.h" |
#include "bfd.h" |
23 |
#include "sysdep.h" |
#include "sysdep.h" |
24 |
#include "libbfd.h" |
#include "libbfd.h" |
25 |
|
#include "../opcodes/sh-opc.h" |
26 |
|
|
27 |
#if 0 |
#define SH_NEXT arch_info_struct + 0 |
28 |
/* This routine is provided two arch_infos and returns whether |
#define SH2_NEXT arch_info_struct + 1 |
29 |
they'd be compatible */ |
#define SH2E_NEXT arch_info_struct + 2 |
30 |
|
#define SH_DSP_NEXT arch_info_struct + 3 |
31 |
static const bfd_arch_info_type * |
#define SH3_NEXT arch_info_struct + 4 |
32 |
compatible (a,b) |
#define SH3_NOMMU_NEXT arch_info_struct + 5 |
33 |
const bfd_arch_info_type *a; |
#define SH3_DSP_NEXT arch_info_struct + 6 |
34 |
const bfd_arch_info_type *b; |
#define SH3E_NEXT arch_info_struct + 7 |
35 |
{ |
#define SH4_NEXT arch_info_struct + 8 |
36 |
if (a->arch != b->arch || a->mach != b->mach) |
#define SH4A_NEXT arch_info_struct + 9 |
37 |
return NULL; |
#define SH4AL_DSP_NEXT arch_info_struct + 10 |
38 |
return a; |
#define SH4_NOFPU_NEXT arch_info_struct + 11 |
39 |
} |
#define SH4_NOMMU_NOFPU_NEXT arch_info_struct + 12 |
40 |
#endif |
#define SH4A_NOFPU_NEXT arch_info_struct + 13 |
41 |
|
#define SH2A_NEXT arch_info_struct + 14 |
42 |
#define SH_NEXT &arch_info_struct[0] |
#define SH2A_NOFPU_NEXT arch_info_struct + 15 |
43 |
#define SH2_NEXT &arch_info_struct[1] |
#define SH2A_NOFPU_OR_SH4_NOMMU_NOFPU_NEXT arch_info_struct + 16 |
44 |
#define SH_DSP_NEXT &arch_info_struct[2] |
#define SH2A_NOFPU_OR_SH3_NOMMU_NEXT arch_info_struct + 17 |
45 |
#define SH3_NEXT &arch_info_struct[3] |
#define SH2A_OR_SH4_NEXT arch_info_struct + 18 |
46 |
#define SH3_DSP_NEXT &arch_info_struct[4] |
#define SH2A_OR_SH3E_NEXT arch_info_struct + 19 |
47 |
#define SH3E_NEXT &arch_info_struct[5] |
#define SH64_NEXT NULL |
|
#define SH4_NEXT NULL |
|
|
#undef SH4_NEXT |
|
|
#define SH4_NEXT &arch_info_struct[6] |
|
|
#define SH64_NEXT NULL |
|
48 |
|
|
49 |
static const bfd_arch_info_type arch_info_struct[] = |
static const bfd_arch_info_type arch_info_struct[] = |
50 |
{ |
{ |
51 |
{ |
{ |
52 |
32, /* 32 bits in a word */ |
32, /* 32 bits in a word. */ |
53 |
32, /* 32 bits in an address */ |
32, /* 32 bits in an address. */ |
54 |
8, /* 8 bits in a byte */ |
8, /* 8 bits in a byte. */ |
55 |
bfd_arch_sh, |
bfd_arch_sh, |
56 |
bfd_mach_sh2, |
bfd_mach_sh2, |
57 |
"sh", /* arch_name */ |
"sh", /* Architecture name. */ |
58 |
"sh2", /* printable name */ |
"sh2", /* Machine name. */ |
59 |
1, |
1, |
60 |
false, /* not the default */ |
FALSE, /* Not the default. */ |
61 |
bfd_default_compatible, |
bfd_default_compatible, |
62 |
bfd_default_scan, |
bfd_default_scan, |
63 |
SH2_NEXT |
SH2_NEXT |
64 |
}, |
}, |
65 |
{ |
{ |
66 |
32, /* 32 bits in a word */ |
32, /* 32 bits in a word. */ |
67 |
32, /* 32 bits in an address */ |
32, /* 32 bits in an address. */ |
68 |
8, /* 8 bits in a byte */ |
8, /* 8 bits in a byte. */ |
69 |
|
bfd_arch_sh, |
70 |
|
bfd_mach_sh2e, |
71 |
|
"sh", /* Architecture name. */ |
72 |
|
"sh2e", /* Machine name. */ |
73 |
|
1, |
74 |
|
FALSE, /* Not the default. */ |
75 |
|
bfd_default_compatible, |
76 |
|
bfd_default_scan, |
77 |
|
SH2E_NEXT |
78 |
|
}, |
79 |
|
{ |
80 |
|
32, /* 32 bits in a word. */ |
81 |
|
32, /* 32 bits in an address. */ |
82 |
|
8, /* 8 bits in a byte. */ |
83 |
bfd_arch_sh, |
bfd_arch_sh, |
84 |
bfd_mach_sh_dsp, |
bfd_mach_sh_dsp, |
85 |
"sh", /* arch_name */ |
"sh", /* Architecture name. */ |
86 |
"sh-dsp", /* printable name */ |
"sh-dsp", /* Machine name. */ |
87 |
1, |
1, |
88 |
false, /* not the default */ |
FALSE, /* Not the default. */ |
89 |
bfd_default_compatible, |
bfd_default_compatible, |
90 |
bfd_default_scan, |
bfd_default_scan, |
91 |
SH_DSP_NEXT |
SH_DSP_NEXT |
92 |
}, |
}, |
93 |
{ |
{ |
94 |
32, /* 32 bits in a word */ |
32, /* 32 bits in a word. */ |
95 |
32, /* 32 bits in an address */ |
32, /* 32 bits in an address. */ |
96 |
8, /* 8 bits in a byte */ |
8, /* 8 bits in a byte. */ |
97 |
bfd_arch_sh, |
bfd_arch_sh, |
98 |
bfd_mach_sh3, |
bfd_mach_sh3, |
99 |
"sh", /* arch_name */ |
"sh", /* Architecture name. */ |
100 |
"sh3", /* printable name */ |
"sh3", /* Machine name. */ |
101 |
1, |
1, |
102 |
false, /* not the default */ |
FALSE, /* Not the default. */ |
103 |
bfd_default_compatible, |
bfd_default_compatible, |
104 |
bfd_default_scan, |
bfd_default_scan, |
105 |
SH3_NEXT |
SH3_NEXT |
106 |
}, |
}, |
107 |
{ |
{ |
108 |
32, /* 32 bits in a word */ |
32, /* 32 bits in a word. */ |
109 |
32, /* 32 bits in an address */ |
32, /* 32 bits in an address. */ |
110 |
8, /* 8 bits in a byte */ |
8, /* 8 bits in a byte. */ |
111 |
|
bfd_arch_sh, |
112 |
|
bfd_mach_sh3_nommu, |
113 |
|
"sh", /* Architecture name. */ |
114 |
|
"sh3-nommu", /* Machine name. */ |
115 |
|
1, |
116 |
|
FALSE, /* Not the default. */ |
117 |
|
bfd_default_compatible, |
118 |
|
bfd_default_scan, |
119 |
|
SH3_NOMMU_NEXT |
120 |
|
}, |
121 |
|
{ |
122 |
|
32, /* 32 bits in a word. */ |
123 |
|
32, /* 32 bits in an address. */ |
124 |
|
8, /* 8 bits in a byte. */ |
125 |
bfd_arch_sh, |
bfd_arch_sh, |
126 |
bfd_mach_sh3_dsp, |
bfd_mach_sh3_dsp, |
127 |
"sh", /* arch_name */ |
"sh", /* Architecture name. */ |
128 |
"sh3-dsp", /* printable name */ |
"sh3-dsp", /* Machine name. */ |
129 |
1, |
1, |
130 |
false, /* not the default */ |
FALSE, /* Not the default. */ |
131 |
bfd_default_compatible, |
bfd_default_compatible, |
132 |
bfd_default_scan, |
bfd_default_scan, |
133 |
SH3_DSP_NEXT |
SH3_DSP_NEXT |
134 |
}, |
}, |
135 |
{ |
{ |
136 |
32, /* 32 bits in a word */ |
32, /* 32 bits in a word. */ |
137 |
32, /* 32 bits in an address */ |
32, /* 32 bits in an address. */ |
138 |
8, /* 8 bits in a byte */ |
8, /* 8 bits in a byte. */ |
139 |
bfd_arch_sh, |
bfd_arch_sh, |
140 |
bfd_mach_sh3e, |
bfd_mach_sh3e, |
141 |
"sh", /* arch_name */ |
"sh", /* Architecture name. */ |
142 |
"sh3e", /* printable name */ |
"sh3e", /* Machine name. */ |
143 |
1, |
1, |
144 |
false, /* not the default */ |
FALSE, /* Not the default. */ |
145 |
bfd_default_compatible, |
bfd_default_compatible, |
146 |
bfd_default_scan, |
bfd_default_scan, |
147 |
SH3E_NEXT |
SH3E_NEXT |
148 |
}, |
}, |
149 |
{ |
{ |
150 |
32, /* 32 bits in a word */ |
32, /* 32 bits in a word. */ |
151 |
32, /* 32 bits in an address */ |
32, /* 32 bits in an address. */ |
152 |
8, /* 8 bits in a byte */ |
8, /* 8 bits in a byte. */ |
153 |
bfd_arch_sh, |
bfd_arch_sh, |
154 |
bfd_mach_sh4, |
bfd_mach_sh4, |
155 |
"sh", /* arch_name */ |
"sh", /* Architecture name. */ |
156 |
"sh4", /* printable name */ |
"sh4", /* Machine name. */ |
157 |
1, |
1, |
158 |
false, /* not the default */ |
FALSE, /* Not the default. */ |
159 |
bfd_default_compatible, |
bfd_default_compatible, |
160 |
bfd_default_scan, |
bfd_default_scan, |
161 |
SH4_NEXT |
SH4_NEXT |
162 |
}, |
}, |
163 |
{ |
{ |
164 |
64, /* 64 bits in a word */ |
32, /* 32 bits in a word. */ |
165 |
64, /* 64 bits in an address */ |
32, /* 32 bits in an address. */ |
166 |
8, /* 8 bits in a byte */ |
8, /* 8 bits in a byte. */ |
167 |
|
bfd_arch_sh, |
168 |
|
bfd_mach_sh4a, |
169 |
|
"sh", /* Architecture name. */ |
170 |
|
"sh4a", /* Machine name. */ |
171 |
|
1, |
172 |
|
FALSE, /* Not the default. */ |
173 |
|
bfd_default_compatible, |
174 |
|
bfd_default_scan, |
175 |
|
SH4A_NEXT |
176 |
|
}, |
177 |
|
{ |
178 |
|
32, /* 32 bits in a word. */ |
179 |
|
32, /* 32 bits in an address. */ |
180 |
|
8, /* 8 bits in a byte. */ |
181 |
|
bfd_arch_sh, |
182 |
|
bfd_mach_sh4al_dsp, |
183 |
|
"sh", /* Architecture name. */ |
184 |
|
"sh4al-dsp", /* Machine name. */ |
185 |
|
1, |
186 |
|
FALSE, /* Not the default. */ |
187 |
|
bfd_default_compatible, |
188 |
|
bfd_default_scan, |
189 |
|
SH4AL_DSP_NEXT |
190 |
|
}, |
191 |
|
{ |
192 |
|
32, /* 32 bits in a word. */ |
193 |
|
32, /* 32 bits in an address. */ |
194 |
|
8, /* 8 bits in a byte. */ |
195 |
|
bfd_arch_sh, |
196 |
|
bfd_mach_sh4_nofpu, |
197 |
|
"sh", /* Architecture name. */ |
198 |
|
"sh4-nofpu", /* Machine name. */ |
199 |
|
1, |
200 |
|
FALSE, /* Not the default. */ |
201 |
|
bfd_default_compatible, |
202 |
|
bfd_default_scan, |
203 |
|
SH4_NOFPU_NEXT |
204 |
|
}, |
205 |
|
{ |
206 |
|
32, /* 32 bits in a word. */ |
207 |
|
32, /* 32 bits in an address. */ |
208 |
|
8, /* 8 bits in a byte. */ |
209 |
|
bfd_arch_sh, |
210 |
|
bfd_mach_sh4_nommu_nofpu, |
211 |
|
"sh", /* Architecture name. */ |
212 |
|
"sh4-nommu-nofpu", /* Machine name. */ |
213 |
|
1, |
214 |
|
FALSE, /* Not the default. */ |
215 |
|
bfd_default_compatible, |
216 |
|
bfd_default_scan, |
217 |
|
SH4_NOMMU_NOFPU_NEXT |
218 |
|
}, |
219 |
|
{ |
220 |
|
32, /* 32 bits in a word. */ |
221 |
|
32, /* 32 bits in an address. */ |
222 |
|
8, /* 8 bits in a byte. */ |
223 |
|
bfd_arch_sh, |
224 |
|
bfd_mach_sh4a_nofpu, |
225 |
|
"sh", /* Architecture name. */ |
226 |
|
"sh4a-nofpu", /* Machine name. */ |
227 |
|
1, |
228 |
|
FALSE, /* Not the default. */ |
229 |
|
bfd_default_compatible, |
230 |
|
bfd_default_scan, |
231 |
|
SH4A_NOFPU_NEXT |
232 |
|
}, |
233 |
|
{ |
234 |
|
32, /* 32 bits in a word. */ |
235 |
|
32, /* 32 bits in an address. */ |
236 |
|
8, /* 8 bits in a byte. */ |
237 |
|
bfd_arch_sh, |
238 |
|
bfd_mach_sh2a, |
239 |
|
"sh", /* Architecture name. */ |
240 |
|
"sh2a", /* Machine name. */ |
241 |
|
1, |
242 |
|
FALSE, /* Not the default. */ |
243 |
|
bfd_default_compatible, |
244 |
|
bfd_default_scan, |
245 |
|
SH2A_NEXT |
246 |
|
}, |
247 |
|
{ |
248 |
|
32, /* 32 bits in a word. */ |
249 |
|
32, /* 32 bits in an address. */ |
250 |
|
8, /* 8 bits in a byte. */ |
251 |
|
bfd_arch_sh, |
252 |
|
bfd_mach_sh2a_nofpu, |
253 |
|
"sh", /* Architecture name. */ |
254 |
|
"sh2a-nofpu", /* Machine name. */ |
255 |
|
1, |
256 |
|
FALSE, /* Not the default. */ |
257 |
|
bfd_default_compatible, |
258 |
|
bfd_default_scan, |
259 |
|
SH2A_NOFPU_NEXT |
260 |
|
}, |
261 |
|
{ |
262 |
|
32, /* 32 bits in a word. */ |
263 |
|
32, /* 32 bits in an address. */ |
264 |
|
8, /* 8 bits in a byte. */ |
265 |
|
bfd_arch_sh, |
266 |
|
bfd_mach_sh2a_nofpu_or_sh4_nommu_nofpu, |
267 |
|
"sh", /* Architecture name. */ |
268 |
|
"sh2a-nofpu-or-sh4-nommu-nofpu", /* Machine name. */ |
269 |
|
1, |
270 |
|
FALSE, /* Not the default. */ |
271 |
|
bfd_default_compatible, |
272 |
|
bfd_default_scan, |
273 |
|
SH2A_NOFPU_OR_SH4_NOMMU_NOFPU_NEXT |
274 |
|
}, |
275 |
|
{ |
276 |
|
32, /* 32 bits in a word. */ |
277 |
|
32, /* 32 bits in an address. */ |
278 |
|
8, /* 8 bits in a byte. */ |
279 |
|
bfd_arch_sh, |
280 |
|
bfd_mach_sh2a_nofpu_or_sh3_nommu, |
281 |
|
"sh", /* Architecture name. . */ |
282 |
|
"sh2a-nofpu-or-sh3-nommu", /* Machine name. */ |
283 |
|
1, |
284 |
|
FALSE, /* Not the default. */ |
285 |
|
bfd_default_compatible, |
286 |
|
bfd_default_scan, |
287 |
|
SH2A_NOFPU_OR_SH3_NOMMU_NEXT |
288 |
|
}, |
289 |
|
{ |
290 |
|
32, /* 32 bits in a word. */ |
291 |
|
32, /* 32 bits in an address. */ |
292 |
|
8, /* 8 bits in a byte. */ |
293 |
|
bfd_arch_sh, |
294 |
|
bfd_mach_sh2a_or_sh4, |
295 |
|
"sh", /* Architecture name. */ |
296 |
|
"sh2a-or-sh4", /* Machine name. */ |
297 |
|
1, |
298 |
|
FALSE, /* Not the default. */ |
299 |
|
bfd_default_compatible, |
300 |
|
bfd_default_scan, |
301 |
|
SH2A_OR_SH4_NEXT |
302 |
|
}, |
303 |
|
{ |
304 |
|
32, /* 32 bits in a word. */ |
305 |
|
32, /* 32 bits in an address. */ |
306 |
|
8, /* 8 bits in a byte. */ |
307 |
|
bfd_arch_sh, |
308 |
|
bfd_mach_sh2a_or_sh3e, |
309 |
|
"sh", /* Architecture name. */ |
310 |
|
"sh2a-or-sh3e", /* Machine name. */ |
311 |
|
1, |
312 |
|
FALSE, /* Not the default. */ |
313 |
|
bfd_default_compatible, |
314 |
|
bfd_default_scan, |
315 |
|
SH2A_OR_SH3E_NEXT |
316 |
|
}, |
317 |
|
{ |
318 |
|
64, /* 64 bits in a word. */ |
319 |
|
64, /* 64 bits in an address. */ |
320 |
|
8, /* 8 bits in a byte. */ |
321 |
bfd_arch_sh, |
bfd_arch_sh, |
322 |
bfd_mach_sh5, |
bfd_mach_sh5, |
323 |
"sh", /* arch_name */ |
"sh", /* Architecture name. */ |
324 |
"sh5", /* printable name */ |
"sh5", /* Machine name. */ |
325 |
1, |
1, |
326 |
false, /* not the default */ |
FALSE, /* Not the default. */ |
327 |
bfd_default_compatible, |
bfd_default_compatible, |
328 |
bfd_default_scan, |
bfd_default_scan, |
329 |
SH64_NEXT |
SH64_NEXT |
332 |
|
|
333 |
const bfd_arch_info_type bfd_sh_arch = |
const bfd_arch_info_type bfd_sh_arch = |
334 |
{ |
{ |
335 |
32, /* 32 bits in a word */ |
32, /* 32 bits in a word. */ |
336 |
32, /* 32 bits in an address */ |
32, /* 32 bits in an address. */ |
337 |
8, /* 8 bits in a byte */ |
8, /* 8 bits in a byte. */ |
338 |
bfd_arch_sh, |
bfd_arch_sh, |
339 |
bfd_mach_sh, |
bfd_mach_sh, |
340 |
"sh", /* arch_name */ |
"sh", /* Architecture name. */ |
341 |
"sh", /* printable name */ |
"sh", /* Machine name. */ |
342 |
1, |
1, |
343 |
true, /* the default machine */ |
TRUE, /* The default machine. */ |
344 |
bfd_default_compatible, |
bfd_default_compatible, |
345 |
bfd_default_scan, |
bfd_default_scan, |
346 |
SH_NEXT |
SH_NEXT |
347 |
}; |
}; |
348 |
|
|
349 |
|
|
350 |
|
/* This table defines the mappings from the BFD internal numbering |
351 |
|
system to the opcodes internal flags system. |
352 |
|
It is used by the functions defined below. |
353 |
|
The prototypes for these SH specific functions are found in |
354 |
|
sh-opc.h . */ |
355 |
|
|
356 |
|
static struct { unsigned long bfd_mach, arch, arch_up; } bfd_to_arch_table[] = |
357 |
|
{ |
358 |
|
{ bfd_mach_sh, arch_sh1, arch_sh_up }, |
359 |
|
{ bfd_mach_sh2, arch_sh2, arch_sh2_up }, |
360 |
|
{ bfd_mach_sh2e, arch_sh2e, arch_sh2e_up }, |
361 |
|
{ bfd_mach_sh_dsp, arch_sh_dsp, arch_sh_dsp_up }, |
362 |
|
{ bfd_mach_sh2a, arch_sh2a, arch_sh2a_up }, |
363 |
|
{ bfd_mach_sh2a_nofpu, arch_sh2a_nofpu, arch_sh2a_nofpu_up }, |
364 |
|
|
365 |
|
{ bfd_mach_sh2a_nofpu_or_sh4_nommu_nofpu, arch_sh2a_nofpu_or_sh4_nommu_nofpu, arch_sh2a_nofpu_or_sh4_nommu_nofpu_up }, |
366 |
|
{ bfd_mach_sh2a_nofpu_or_sh3_nommu, arch_sh2a_nofpu_or_sh3_nommu, arch_sh2a_nofpu_or_sh3_nommu_up }, |
367 |
|
{ bfd_mach_sh2a_or_sh4, arch_sh2a_or_sh4, arch_sh2a_or_sh4_up }, |
368 |
|
{ bfd_mach_sh2a_or_sh3e, arch_sh2a_or_sh3e, arch_sh2a_or_sh3e_up }, |
369 |
|
|
370 |
|
{ bfd_mach_sh3, arch_sh3, arch_sh3_up }, |
371 |
|
{ bfd_mach_sh3_nommu, arch_sh3_nommu, arch_sh3_nommu_up }, |
372 |
|
{ bfd_mach_sh3_dsp, arch_sh3_dsp, arch_sh3_dsp_up }, |
373 |
|
{ bfd_mach_sh3e, arch_sh3e, arch_sh3e_up }, |
374 |
|
{ bfd_mach_sh4, arch_sh4, arch_sh4_up }, |
375 |
|
{ bfd_mach_sh4a, arch_sh4a, arch_sh4a_up }, |
376 |
|
{ bfd_mach_sh4al_dsp, arch_sh4al_dsp, arch_sh4al_dsp_up }, |
377 |
|
{ bfd_mach_sh4_nofpu, arch_sh4_nofpu, arch_sh4_nofpu_up }, |
378 |
|
{ bfd_mach_sh4_nommu_nofpu, arch_sh4_nommu_nofpu, arch_sh4_nommu_nofpu_up }, |
379 |
|
{ bfd_mach_sh4a_nofpu, arch_sh4a_nofpu, arch_sh4a_nofpu_up }, |
380 |
|
{ 0, 0, 0 } /* Terminator. */ |
381 |
|
}; |
382 |
|
|
383 |
|
|
384 |
|
/* Convert a BFD mach number into the right opcodes arch flags |
385 |
|
using the table above. */ |
386 |
|
|
387 |
|
unsigned int |
388 |
|
sh_get_arch_from_bfd_mach (unsigned long mach) |
389 |
|
{ |
390 |
|
int i = 0; |
391 |
|
|
392 |
|
while (bfd_to_arch_table[i].bfd_mach != 0) |
393 |
|
if (bfd_to_arch_table[i].bfd_mach == mach) |
394 |
|
return bfd_to_arch_table[i].arch; |
395 |
|
else |
396 |
|
i++; |
397 |
|
|
398 |
|
/* Machine not found. */ |
399 |
|
BFD_FAIL(); |
400 |
|
|
401 |
|
return SH_ARCH_UNKNOWN_ARCH; |
402 |
|
} |
403 |
|
|
404 |
|
|
405 |
|
/* Convert a BFD mach number into a set of opcodes arch flags |
406 |
|
describing all the compatible architectures (i.e. arch_up) |
407 |
|
using the table above. */ |
408 |
|
|
409 |
|
unsigned int |
410 |
|
sh_get_arch_up_from_bfd_mach (unsigned long mach) |
411 |
|
{ |
412 |
|
int i = 0; |
413 |
|
|
414 |
|
while (bfd_to_arch_table[i].bfd_mach != 0) |
415 |
|
if (bfd_to_arch_table[i].bfd_mach == mach) |
416 |
|
return bfd_to_arch_table[i].arch_up; |
417 |
|
else |
418 |
|
i++; |
419 |
|
|
420 |
|
/* Machine not found. */ |
421 |
|
BFD_FAIL(); |
422 |
|
|
423 |
|
return SH_ARCH_UNKNOWN_ARCH; |
424 |
|
} |
425 |
|
|
426 |
|
|
427 |
|
/* Convert an arbitary arch_set - not necessarily corresponding |
428 |
|
directly to anything in the table above - to the most generic |
429 |
|
architecture which supports all the required features, and |
430 |
|
return the corresponding BFD mach. */ |
431 |
|
|
432 |
|
unsigned long |
433 |
|
sh_get_bfd_mach_from_arch_set (unsigned int arch_set) |
434 |
|
{ |
435 |
|
unsigned long result = 0; |
436 |
|
unsigned int best = ~arch_set; |
437 |
|
unsigned int co_mask = ~0; |
438 |
|
int i = 0; |
439 |
|
|
440 |
|
/* If arch_set permits variants with no coprocessor then do not allow |
441 |
|
the other irrelevant co-processor bits to influence the choice: |
442 |
|
e.g. if dsp is disallowed by arch_set, then the algorithm would |
443 |
|
prefer fpu variants over nofpu variants because they also disallow |
444 |
|
dsp - even though the nofpu would be the most correct choice. |
445 |
|
This assumes that EVERY fpu/dsp variant has a no-coprocessor |
446 |
|
counter-part, or their non-fpu/dsp instructions do not have the |
447 |
|
no co-processor bit set. */ |
448 |
|
if (arch_set & arch_sh_no_co) |
449 |
|
co_mask = ~(arch_sh_sp_fpu | arch_sh_dp_fpu | arch_sh_has_dsp); |
450 |
|
|
451 |
|
while (bfd_to_arch_table[i].bfd_mach != 0) |
452 |
|
{ |
453 |
|
unsigned int try = bfd_to_arch_table[i].arch_up & co_mask; |
454 |
|
|
455 |
|
/* Conceptually: Find the architecture with the least number |
456 |
|
of extra features or, if they have the same number, then |
457 |
|
the greatest number of required features. Disregard |
458 |
|
architectures where the required features alone do |
459 |
|
not describe a valid architecture. */ |
460 |
|
if (((try & ~arch_set) < (best & ~arch_set) |
461 |
|
|| ((try & ~arch_set) == (best & ~arch_set) |
462 |
|
&& (~try & arch_set) < (~best & arch_set))) |
463 |
|
&& SH_MERGE_ARCH_SET_VALID (try, arch_set)) |
464 |
|
{ |
465 |
|
result = bfd_to_arch_table[i].bfd_mach; |
466 |
|
best = try; |
467 |
|
} |
468 |
|
|
469 |
|
i++; |
470 |
|
} |
471 |
|
|
472 |
|
/* This might happen if a new variant is added to sh-opc.h |
473 |
|
but no corresponding entry is added to the table above. */ |
474 |
|
BFD_ASSERT (result != 0); |
475 |
|
|
476 |
|
return result; |
477 |
|
} |
478 |
|
|
479 |
|
|
480 |
|
/* Merge the architecture type of two BFD files, such that the |
481 |
|
resultant architecture supports all the features required |
482 |
|
by the two input BFDs. |
483 |
|
If the input BFDs are multually incompatible - i.e. one uses |
484 |
|
DSP while the other uses FPU - or there is no known architecture |
485 |
|
that fits the requirements then an error is emitted. */ |
486 |
|
|
487 |
|
bfd_boolean |
488 |
|
sh_merge_bfd_arch (bfd *ibfd, bfd *obfd) |
489 |
|
{ |
490 |
|
unsigned int old_arch, new_arch, merged_arch; |
491 |
|
|
492 |
|
if (! _bfd_generic_verify_endian_match (ibfd, obfd)) |
493 |
|
return FALSE; |
494 |
|
|
495 |
|
old_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd)); |
496 |
|
new_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd)); |
497 |
|
|
498 |
|
merged_arch = SH_MERGE_ARCH_SET (old_arch, new_arch); |
499 |
|
|
500 |
|
if (!SH_VALID_CO_ARCH_SET (merged_arch)) |
501 |
|
{ |
502 |
|
(*_bfd_error_handler) |
503 |
|
("%B: uses %s instructions while previous modules use %s instructions", |
504 |
|
ibfd, |
505 |
|
SH_ARCH_SET_HAS_DSP (new_arch) ? "dsp" : "floating point", |
506 |
|
SH_ARCH_SET_HAS_DSP (new_arch) ? "floating point" : "dsp"); |
507 |
|
bfd_set_error (bfd_error_bad_value); |
508 |
|
return FALSE; |
509 |
|
} |
510 |
|
else if (!SH_VALID_ARCH_SET (merged_arch)) |
511 |
|
{ |
512 |
|
(*_bfd_error_handler) |
513 |
|
("internal error: merge of architecture '%s' with architecture '%s' produced unknown architecture\n", |
514 |
|
bfd_printable_name (obfd), |
515 |
|
bfd_printable_name (ibfd)); |
516 |
|
bfd_set_error (bfd_error_bad_value); |
517 |
|
return FALSE; |
518 |
|
} |
519 |
|
|
520 |
|
bfd_default_set_arch_mach (obfd, bfd_arch_sh, |
521 |
|
sh_get_bfd_mach_from_arch_set (merged_arch)); |
522 |
|
|
523 |
|
return TRUE; |
524 |
|
} |