]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - opcodes/mips-dis.c
projects / thirdparty / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
MIPS16/opcodes: Add `-M no-aliases' disassembler option help text
[thirdparty/binutils-gdb.git] / opcodes / mips-dis.c
1 /* Print mips instructions for GDB, the GNU debugger, or for objdump.
2 Copyright (C) 1989-2017 Free Software Foundation, Inc.
3 Contributed by Nobuyuki Hikichi(hikichi@sra.co.jp).
4
5 This file is part of the GNU opcodes library.
6
7 This library 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, or (at your option)
10 any later version.
11
12 It is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 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 #include "sysdep.h"
23 #include "dis-asm.h"
24 #include "libiberty.h"
25 #include "opcode/mips.h"
26 #include "opintl.h"
27
28 /* FIXME: These are needed to figure out if the code is mips16 or
29 not. The low bit of the address is often a good indicator. No
30 symbol table is available when this code runs out in an embedded
31 system as when it is used for disassembler support in a monitor. */
32
33 #if !defined(EMBEDDED_ENV)
34 #define SYMTAB_AVAILABLE 1
35 #include "elf-bfd.h"
36 #include "elf/mips.h"
37 #endif
38
39 /* Mips instructions are at maximum this many bytes long. */
40 #define INSNLEN 4
41
42 \f
43 /* FIXME: These should be shared with gdb somehow. */
44
45 struct mips_cp0sel_name
46 {
47 unsigned int cp0reg;
48 unsigned int sel;
49 const char * const name;
50 };
51
52 static const char * const mips_gpr_names_numeric[32] =
53 {
54 "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
55 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
56 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
57 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
58 };
59
60 static const char * const mips_gpr_names_oldabi[32] =
61 {
62 "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3",
63 "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
64 "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
65 "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra"
66 };
67
68 static const char * const mips_gpr_names_newabi[32] =
69 {
70 "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3",
71 "a4", "a5", "a6", "a7", "t0", "t1", "t2", "t3",
72 "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
73 "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra"
74 };
75
76 static const char * const mips_fpr_names_numeric[32] =
77 {
78 "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", "$f7",
79 "$f8", "$f9", "$f10", "$f11", "$f12", "$f13", "$f14", "$f15",
80 "$f16", "$f17", "$f18", "$f19", "$f20", "$f21", "$f22", "$f23",
81 "$f24", "$f25", "$f26", "$f27", "$f28", "$f29", "$f30", "$f31"
82 };
83
84 static const char * const mips_fpr_names_32[32] =
85 {
86 "fv0", "fv0f", "fv1", "fv1f", "ft0", "ft0f", "ft1", "ft1f",
87 "ft2", "ft2f", "ft3", "ft3f", "fa0", "fa0f", "fa1", "fa1f",
88 "ft4", "ft4f", "ft5", "ft5f", "fs0", "fs0f", "fs1", "fs1f",
89 "fs2", "fs2f", "fs3", "fs3f", "fs4", "fs4f", "fs5", "fs5f"
90 };
91
92 static const char * const mips_fpr_names_n32[32] =
93 {
94 "fv0", "ft14", "fv1", "ft15", "ft0", "ft1", "ft2", "ft3",
95 "ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3",
96 "fa4", "fa5", "fa6", "fa7", "fs0", "ft8", "fs1", "ft9",
97 "fs2", "ft10", "fs3", "ft11", "fs4", "ft12", "fs5", "ft13"
98 };
99
100 static const char * const mips_fpr_names_64[32] =
101 {
102 "fv0", "ft12", "fv1", "ft13", "ft0", "ft1", "ft2", "ft3",
103 "ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3",
104 "fa4", "fa5", "fa6", "fa7", "ft8", "ft9", "ft10", "ft11",
105 "fs0", "fs1", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7"
106 };
107
108 static const char * const mips_cp0_names_numeric[32] =
109 {
110 "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
111 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
112 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
113 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
114 };
115
116 static const char * const mips_cp1_names_numeric[32] =
117 {
118 "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
119 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
120 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
121 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
122 };
123
124 static const char * const mips_cp0_names_r3000[32] =
125 {
126 "c0_index", "c0_random", "c0_entrylo", "$3",
127 "c0_context", "$5", "$6", "$7",
128 "c0_badvaddr", "$9", "c0_entryhi", "$11",
129 "c0_sr", "c0_cause", "c0_epc", "c0_prid",
130 "$16", "$17", "$18", "$19",
131 "$20", "$21", "$22", "$23",
132 "$24", "$25", "$26", "$27",
133 "$28", "$29", "$30", "$31",
134 };
135
136 static const char * const mips_cp0_names_r4000[32] =
137 {
138 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
139 "c0_context", "c0_pagemask", "c0_wired", "$7",
140 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
141 "c0_sr", "c0_cause", "c0_epc", "c0_prid",
142 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
143 "c0_xcontext", "$21", "$22", "$23",
144 "$24", "$25", "c0_ecc", "c0_cacheerr",
145 "c0_taglo", "c0_taghi", "c0_errorepc", "$31",
146 };
147
148 static const char * const mips_cp0_names_r5900[32] =
149 {
150 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
151 "c0_context", "c0_pagemask", "c0_wired", "$7",
152 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
153 "c0_sr", "c0_cause", "c0_epc", "c0_prid",
154 "c0_config", "$17", "$18", "$19",
155 "$20", "$21", "$22", "c0_badpaddr",
156 "c0_depc", "c0_perfcnt", "$26", "$27",
157 "c0_taglo", "c0_taghi", "c0_errorepc", "$31"
158 };
159
160 static const char * const mips_cp0_names_mips3264[32] =
161 {
162 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
163 "c0_context", "c0_pagemask", "c0_wired", "$7",
164 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
165 "c0_status", "c0_cause", "c0_epc", "c0_prid",
166 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
167 "c0_xcontext", "$21", "$22", "c0_debug",
168 "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr",
169 "c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave",
170 };
171
172 static const char * const mips_cp1_names_mips3264[32] =
173 {
174 "c1_fir", "c1_ufr", "$2", "$3",
175 "c1_unfr", "$5", "$6", "$7",
176 "$8", "$9", "$10", "$11",
177 "$12", "$13", "$14", "$15",
178 "$16", "$17", "$18", "$19",
179 "$20", "$21", "$22", "$23",
180 "$24", "c1_fccr", "c1_fexr", "$27",
181 "c1_fenr", "$29", "$30", "c1_fcsr"
182 };
183
184 static const struct mips_cp0sel_name mips_cp0sel_names_mips3264[] =
185 {
186 { 16, 1, "c0_config1" },
187 { 16, 2, "c0_config2" },
188 { 16, 3, "c0_config3" },
189 { 18, 1, "c0_watchlo,1" },
190 { 18, 2, "c0_watchlo,2" },
191 { 18, 3, "c0_watchlo,3" },
192 { 18, 4, "c0_watchlo,4" },
193 { 18, 5, "c0_watchlo,5" },
194 { 18, 6, "c0_watchlo,6" },
195 { 18, 7, "c0_watchlo,7" },
196 { 19, 1, "c0_watchhi,1" },
197 { 19, 2, "c0_watchhi,2" },
198 { 19, 3, "c0_watchhi,3" },
199 { 19, 4, "c0_watchhi,4" },
200 { 19, 5, "c0_watchhi,5" },
201 { 19, 6, "c0_watchhi,6" },
202 { 19, 7, "c0_watchhi,7" },
203 { 25, 1, "c0_perfcnt,1" },
204 { 25, 2, "c0_perfcnt,2" },
205 { 25, 3, "c0_perfcnt,3" },
206 { 25, 4, "c0_perfcnt,4" },
207 { 25, 5, "c0_perfcnt,5" },
208 { 25, 6, "c0_perfcnt,6" },
209 { 25, 7, "c0_perfcnt,7" },
210 { 27, 1, "c0_cacheerr,1" },
211 { 27, 2, "c0_cacheerr,2" },
212 { 27, 3, "c0_cacheerr,3" },
213 { 28, 1, "c0_datalo" },
214 { 29, 1, "c0_datahi" }
215 };
216
217 static const char * const mips_cp0_names_mips3264r2[32] =
218 {
219 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
220 "c0_context", "c0_pagemask", "c0_wired", "c0_hwrena",
221 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
222 "c0_status", "c0_cause", "c0_epc", "c0_prid",
223 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
224 "c0_xcontext", "$21", "$22", "c0_debug",
225 "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr",
226 "c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave",
227 };
228
229 static const struct mips_cp0sel_name mips_cp0sel_names_mips3264r2[] =
230 {
231 { 4, 1, "c0_contextconfig" },
232 { 0, 1, "c0_mvpcontrol" },
233 { 0, 2, "c0_mvpconf0" },
234 { 0, 3, "c0_mvpconf1" },
235 { 1, 1, "c0_vpecontrol" },
236 { 1, 2, "c0_vpeconf0" },
237 { 1, 3, "c0_vpeconf1" },
238 { 1, 4, "c0_yqmask" },
239 { 1, 5, "c0_vpeschedule" },
240 { 1, 6, "c0_vpeschefback" },
241 { 2, 1, "c0_tcstatus" },
242 { 2, 2, "c0_tcbind" },
243 { 2, 3, "c0_tcrestart" },
244 { 2, 4, "c0_tchalt" },
245 { 2, 5, "c0_tccontext" },
246 { 2, 6, "c0_tcschedule" },
247 { 2, 7, "c0_tcschefback" },
248 { 5, 1, "c0_pagegrain" },
249 { 6, 1, "c0_srsconf0" },
250 { 6, 2, "c0_srsconf1" },
251 { 6, 3, "c0_srsconf2" },
252 { 6, 4, "c0_srsconf3" },
253 { 6, 5, "c0_srsconf4" },
254 { 12, 1, "c0_intctl" },
255 { 12, 2, "c0_srsctl" },
256 { 12, 3, "c0_srsmap" },
257 { 15, 1, "c0_ebase" },
258 { 16, 1, "c0_config1" },
259 { 16, 2, "c0_config2" },
260 { 16, 3, "c0_config3" },
261 { 18, 1, "c0_watchlo,1" },
262 { 18, 2, "c0_watchlo,2" },
263 { 18, 3, "c0_watchlo,3" },
264 { 18, 4, "c0_watchlo,4" },
265 { 18, 5, "c0_watchlo,5" },
266 { 18, 6, "c0_watchlo,6" },
267 { 18, 7, "c0_watchlo,7" },
268 { 19, 1, "c0_watchhi,1" },
269 { 19, 2, "c0_watchhi,2" },
270 { 19, 3, "c0_watchhi,3" },
271 { 19, 4, "c0_watchhi,4" },
272 { 19, 5, "c0_watchhi,5" },
273 { 19, 6, "c0_watchhi,6" },
274 { 19, 7, "c0_watchhi,7" },
275 { 23, 1, "c0_tracecontrol" },
276 { 23, 2, "c0_tracecontrol2" },
277 { 23, 3, "c0_usertracedata" },
278 { 23, 4, "c0_tracebpc" },
279 { 25, 1, "c0_perfcnt,1" },
280 { 25, 2, "c0_perfcnt,2" },
281 { 25, 3, "c0_perfcnt,3" },
282 { 25, 4, "c0_perfcnt,4" },
283 { 25, 5, "c0_perfcnt,5" },
284 { 25, 6, "c0_perfcnt,6" },
285 { 25, 7, "c0_perfcnt,7" },
286 { 27, 1, "c0_cacheerr,1" },
287 { 27, 2, "c0_cacheerr,2" },
288 { 27, 3, "c0_cacheerr,3" },
289 { 28, 1, "c0_datalo" },
290 { 28, 2, "c0_taglo1" },
291 { 28, 3, "c0_datalo1" },
292 { 28, 4, "c0_taglo2" },
293 { 28, 5, "c0_datalo2" },
294 { 28, 6, "c0_taglo3" },
295 { 28, 7, "c0_datalo3" },
296 { 29, 1, "c0_datahi" },
297 { 29, 2, "c0_taghi1" },
298 { 29, 3, "c0_datahi1" },
299 { 29, 4, "c0_taghi2" },
300 { 29, 5, "c0_datahi2" },
301 { 29, 6, "c0_taghi3" },
302 { 29, 7, "c0_datahi3" },
303 };
304
305 /* SB-1: MIPS64 (mips_cp0_names_mips3264) with minor mods. */
306 static const char * const mips_cp0_names_sb1[32] =
307 {
308 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
309 "c0_context", "c0_pagemask", "c0_wired", "$7",
310 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
311 "c0_status", "c0_cause", "c0_epc", "c0_prid",
312 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
313 "c0_xcontext", "$21", "$22", "c0_debug",
314 "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr_i",
315 "c0_taglo_i", "c0_taghi_i", "c0_errorepc", "c0_desave",
316 };
317
318 static const struct mips_cp0sel_name mips_cp0sel_names_sb1[] =
319 {
320 { 16, 1, "c0_config1" },
321 { 18, 1, "c0_watchlo,1" },
322 { 19, 1, "c0_watchhi,1" },
323 { 22, 0, "c0_perftrace" },
324 { 23, 3, "c0_edebug" },
325 { 25, 1, "c0_perfcnt,1" },
326 { 25, 2, "c0_perfcnt,2" },
327 { 25, 3, "c0_perfcnt,3" },
328 { 25, 4, "c0_perfcnt,4" },
329 { 25, 5, "c0_perfcnt,5" },
330 { 25, 6, "c0_perfcnt,6" },
331 { 25, 7, "c0_perfcnt,7" },
332 { 26, 1, "c0_buserr_pa" },
333 { 27, 1, "c0_cacheerr_d" },
334 { 27, 3, "c0_cacheerr_d_pa" },
335 { 28, 1, "c0_datalo_i" },
336 { 28, 2, "c0_taglo_d" },
337 { 28, 3, "c0_datalo_d" },
338 { 29, 1, "c0_datahi_i" },
339 { 29, 2, "c0_taghi_d" },
340 { 29, 3, "c0_datahi_d" },
341 };
342
343 /* Xlr cop0 register names. */
344 static const char * const mips_cp0_names_xlr[32] = {
345 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
346 "c0_context", "c0_pagemask", "c0_wired", "$7",
347 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
348 "c0_status", "c0_cause", "c0_epc", "c0_prid",
349 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
350 "c0_xcontext", "$21", "$22", "c0_debug",
351 "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr_i",
352 "c0_taglo_i", "c0_taghi_i", "c0_errorepc", "c0_desave",
353 };
354
355 /* XLR's CP0 Select Registers. */
356
357 static const struct mips_cp0sel_name mips_cp0sel_names_xlr[] = {
358 { 9, 6, "c0_extintreq" },
359 { 9, 7, "c0_extintmask" },
360 { 15, 1, "c0_ebase" },
361 { 16, 1, "c0_config1" },
362 { 16, 2, "c0_config2" },
363 { 16, 3, "c0_config3" },
364 { 16, 7, "c0_procid2" },
365 { 18, 1, "c0_watchlo,1" },
366 { 18, 2, "c0_watchlo,2" },
367 { 18, 3, "c0_watchlo,3" },
368 { 18, 4, "c0_watchlo,4" },
369 { 18, 5, "c0_watchlo,5" },
370 { 18, 6, "c0_watchlo,6" },
371 { 18, 7, "c0_watchlo,7" },
372 { 19, 1, "c0_watchhi,1" },
373 { 19, 2, "c0_watchhi,2" },
374 { 19, 3, "c0_watchhi,3" },
375 { 19, 4, "c0_watchhi,4" },
376 { 19, 5, "c0_watchhi,5" },
377 { 19, 6, "c0_watchhi,6" },
378 { 19, 7, "c0_watchhi,7" },
379 { 25, 1, "c0_perfcnt,1" },
380 { 25, 2, "c0_perfcnt,2" },
381 { 25, 3, "c0_perfcnt,3" },
382 { 25, 4, "c0_perfcnt,4" },
383 { 25, 5, "c0_perfcnt,5" },
384 { 25, 6, "c0_perfcnt,6" },
385 { 25, 7, "c0_perfcnt,7" },
386 { 27, 1, "c0_cacheerr,1" },
387 { 27, 2, "c0_cacheerr,2" },
388 { 27, 3, "c0_cacheerr,3" },
389 { 28, 1, "c0_datalo" },
390 { 29, 1, "c0_datahi" }
391 };
392
393 static const char * const mips_hwr_names_numeric[32] =
394 {
395 "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
396 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
397 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
398 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
399 };
400
401 static const char * const mips_hwr_names_mips3264r2[32] =
402 {
403 "hwr_cpunum", "hwr_synci_step", "hwr_cc", "hwr_ccres",
404 "$4", "$5", "$6", "$7",
405 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
406 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
407 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
408 };
409
410 static const char * const msa_control_names[32] =
411 {
412 "msa_ir", "msa_csr", "msa_access", "msa_save",
413 "msa_modify", "msa_request", "msa_map", "msa_unmap",
414 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
415 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
416 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
417 };
418
419 struct mips_abi_choice
420 {
421 const char * name;
422 const char * const *gpr_names;
423 const char * const *fpr_names;
424 };
425
426 struct mips_abi_choice mips_abi_choices[] =
427 {
428 { "numeric", mips_gpr_names_numeric, mips_fpr_names_numeric },
429 { "32", mips_gpr_names_oldabi, mips_fpr_names_32 },
430 { "n32", mips_gpr_names_newabi, mips_fpr_names_n32 },
431 { "64", mips_gpr_names_newabi, mips_fpr_names_64 },
432 };
433
434 struct mips_arch_choice
435 {
436 const char *name;
437 int bfd_mach_valid;
438 unsigned long bfd_mach;
439 int processor;
440 int isa;
441 int ase;
442 const char * const *cp0_names;
443 const struct mips_cp0sel_name *cp0sel_names;
444 unsigned int cp0sel_names_len;
445 const char * const *cp1_names;
446 const char * const *hwr_names;
447 };
448
449 const struct mips_arch_choice mips_arch_choices[] =
450 {
451 { "numeric", 0, 0, 0, 0, 0,
452 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
453 mips_hwr_names_numeric },
454
455 { "r3000", 1, bfd_mach_mips3000, CPU_R3000, ISA_MIPS1, 0,
456 mips_cp0_names_r3000, NULL, 0, mips_cp1_names_numeric,
457 mips_hwr_names_numeric },
458 { "r3900", 1, bfd_mach_mips3900, CPU_R3900, ISA_MIPS1, 0,
459 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
460 mips_hwr_names_numeric },
461 { "r4000", 1, bfd_mach_mips4000, CPU_R4000, ISA_MIPS3, 0,
462 mips_cp0_names_r4000, NULL, 0, mips_cp1_names_numeric,
463 mips_hwr_names_numeric },
464 { "r4010", 1, bfd_mach_mips4010, CPU_R4010, ISA_MIPS2, 0,
465 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
466 mips_hwr_names_numeric },
467 { "vr4100", 1, bfd_mach_mips4100, CPU_VR4100, ISA_MIPS3, 0,
468 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
469 mips_hwr_names_numeric },
470 { "vr4111", 1, bfd_mach_mips4111, CPU_R4111, ISA_MIPS3, 0,
471 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
472 mips_hwr_names_numeric },
473 { "vr4120", 1, bfd_mach_mips4120, CPU_VR4120, ISA_MIPS3, 0,
474 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
475 mips_hwr_names_numeric },
476 { "r4300", 1, bfd_mach_mips4300, CPU_R4300, ISA_MIPS3, 0,
477 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
478 mips_hwr_names_numeric },
479 { "r4400", 1, bfd_mach_mips4400, CPU_R4400, ISA_MIPS3, 0,
480 mips_cp0_names_r4000, NULL, 0, mips_cp1_names_numeric,
481 mips_hwr_names_numeric },
482 { "r4600", 1, bfd_mach_mips4600, CPU_R4600, ISA_MIPS3, 0,
483 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
484 mips_hwr_names_numeric },
485 { "r4650", 1, bfd_mach_mips4650, CPU_R4650, ISA_MIPS3, 0,
486 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
487 mips_hwr_names_numeric },
488 { "r5000", 1, bfd_mach_mips5000, CPU_R5000, ISA_MIPS4, 0,
489 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
490 mips_hwr_names_numeric },
491 { "vr5400", 1, bfd_mach_mips5400, CPU_VR5400, ISA_MIPS4, 0,
492 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
493 mips_hwr_names_numeric },
494 { "vr5500", 1, bfd_mach_mips5500, CPU_VR5500, ISA_MIPS4, 0,
495 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
496 mips_hwr_names_numeric },
497 { "r5900", 1, bfd_mach_mips5900, CPU_R5900, ISA_MIPS3, 0,
498 mips_cp0_names_r5900, NULL, 0, mips_cp1_names_numeric,
499 mips_hwr_names_numeric },
500 { "r6000", 1, bfd_mach_mips6000, CPU_R6000, ISA_MIPS2, 0,
501 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
502 mips_hwr_names_numeric },
503 { "rm7000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4, 0,
504 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
505 mips_hwr_names_numeric },
506 { "rm9000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4, 0,
507 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
508 mips_hwr_names_numeric },
509 { "r8000", 1, bfd_mach_mips8000, CPU_R8000, ISA_MIPS4, 0,
510 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
511 mips_hwr_names_numeric },
512 { "r10000", 1, bfd_mach_mips10000, CPU_R10000, ISA_MIPS4, 0,
513 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
514 mips_hwr_names_numeric },
515 { "r12000", 1, bfd_mach_mips12000, CPU_R12000, ISA_MIPS4, 0,
516 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
517 mips_hwr_names_numeric },
518 { "r14000", 1, bfd_mach_mips14000, CPU_R14000, ISA_MIPS4, 0,
519 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
520 mips_hwr_names_numeric },
521 { "r16000", 1, bfd_mach_mips16000, CPU_R16000, ISA_MIPS4, 0,
522 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
523 mips_hwr_names_numeric },
524 { "mips5", 1, bfd_mach_mips5, CPU_MIPS5, ISA_MIPS5, 0,
525 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
526 mips_hwr_names_numeric },
527
528 /* For stock MIPS32, disassemble all applicable MIPS-specified ASEs.
529 Note that MIPS-3D and MDMX are not applicable to MIPS32. (See
530 _MIPS32 Architecture For Programmers Volume I: Introduction to the
531 MIPS32 Architecture_ (MIPS Document Number MD00082, Revision 0.95),
532 page 1. */
533 { "mips32", 1, bfd_mach_mipsisa32, CPU_MIPS32,
534 ISA_MIPS32, ASE_SMARTMIPS,
535 mips_cp0_names_mips3264,
536 mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
537 mips_cp1_names_mips3264, mips_hwr_names_numeric },
538
539 { "mips32r2", 1, bfd_mach_mipsisa32r2, CPU_MIPS32R2,
540 ISA_MIPS32R2,
541 (ASE_SMARTMIPS | ASE_DSP | ASE_DSPR2 | ASE_EVA | ASE_MIPS3D
542 | ASE_MT | ASE_MCU | ASE_VIRT | ASE_MSA | ASE_XPA),
543 mips_cp0_names_mips3264r2,
544 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
545 mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
546
547 { "mips32r3", 1, bfd_mach_mipsisa32r3, CPU_MIPS32R3,
548 ISA_MIPS32R3,
549 (ASE_SMARTMIPS | ASE_DSP | ASE_DSPR2 | ASE_EVA | ASE_MIPS3D
550 | ASE_MT | ASE_MCU | ASE_VIRT | ASE_MSA | ASE_XPA),
551 mips_cp0_names_mips3264r2,
552 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
553 mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
554
555 { "mips32r5", 1, bfd_mach_mipsisa32r5, CPU_MIPS32R5,
556 ISA_MIPS32R5,
557 (ASE_SMARTMIPS | ASE_DSP | ASE_DSPR2 | ASE_EVA | ASE_MIPS3D
558 | ASE_MT | ASE_MCU | ASE_VIRT | ASE_MSA | ASE_XPA),
559 mips_cp0_names_mips3264r2,
560 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
561 mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
562
563 { "mips32r6", 1, bfd_mach_mipsisa32r6, CPU_MIPS32R6,
564 ISA_MIPS32R6,
565 (ASE_EVA | ASE_MSA | ASE_VIRT | ASE_XPA | ASE_MCU | ASE_MT | ASE_DSP
566 | ASE_DSPR2 | ASE_DSPR3),
567 mips_cp0_names_mips3264r2,
568 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
569 mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
570
571 /* For stock MIPS64, disassemble all applicable MIPS-specified ASEs. */
572 { "mips64", 1, bfd_mach_mipsisa64, CPU_MIPS64,
573 ISA_MIPS64, ASE_MIPS3D | ASE_MDMX,
574 mips_cp0_names_mips3264,
575 mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
576 mips_cp1_names_mips3264, mips_hwr_names_numeric },
577
578 { "mips64r2", 1, bfd_mach_mipsisa64r2, CPU_MIPS64R2,
579 ISA_MIPS64R2,
580 (ASE_MIPS3D | ASE_DSP | ASE_DSPR2 | ASE_DSP64 | ASE_EVA | ASE_MT
581 | ASE_MCU | ASE_VIRT | ASE_VIRT64 | ASE_MSA | ASE_MSA64 | ASE_XPA),
582 mips_cp0_names_mips3264r2,
583 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
584 mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
585
586 { "mips64r3", 1, bfd_mach_mipsisa64r3, CPU_MIPS64R3,
587 ISA_MIPS64R3,
588 (ASE_MIPS3D | ASE_DSP | ASE_DSPR2 | ASE_DSP64 | ASE_EVA | ASE_MT
589 | ASE_MCU | ASE_VIRT | ASE_VIRT64 | ASE_MSA | ASE_MSA64 | ASE_XPA),
590 mips_cp0_names_mips3264r2,
591 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
592 mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
593
594 { "mips64r5", 1, bfd_mach_mipsisa64r5, CPU_MIPS64R5,
595 ISA_MIPS64R5,
596 (ASE_MIPS3D | ASE_DSP | ASE_DSPR2 | ASE_DSP64 | ASE_EVA | ASE_MT
597 | ASE_MCU | ASE_VIRT | ASE_VIRT64 | ASE_MSA | ASE_MSA64 | ASE_XPA),
598 mips_cp0_names_mips3264r2,
599 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
600 mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
601
602 { "mips64r6", 1, bfd_mach_mipsisa64r6, CPU_MIPS64R6,
603 ISA_MIPS64R6,
604 (ASE_EVA | ASE_MSA | ASE_MSA64 | ASE_XPA | ASE_VIRT | ASE_VIRT64
605 | ASE_MCU | ASE_MT | ASE_DSP | ASE_DSPR2 | ASE_DSPR3),
606 mips_cp0_names_mips3264r2,
607 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
608 mips_cp1_names_mips3264, mips_hwr_names_mips3264r2 },
609
610 { "sb1", 1, bfd_mach_mips_sb1, CPU_SB1,
611 ISA_MIPS64 | INSN_SB1, ASE_MIPS3D,
612 mips_cp0_names_sb1,
613 mips_cp0sel_names_sb1, ARRAY_SIZE (mips_cp0sel_names_sb1),
614 mips_cp1_names_mips3264, mips_hwr_names_numeric },
615
616 { "loongson2e", 1, bfd_mach_mips_loongson_2e, CPU_LOONGSON_2E,
617 ISA_MIPS3 | INSN_LOONGSON_2E, 0, mips_cp0_names_numeric,
618 NULL, 0, mips_cp1_names_numeric, mips_hwr_names_numeric },
619
620 { "loongson2f", 1, bfd_mach_mips_loongson_2f, CPU_LOONGSON_2F,
621 ISA_MIPS3 | INSN_LOONGSON_2F, 0, mips_cp0_names_numeric,
622 NULL, 0, mips_cp1_names_numeric, mips_hwr_names_numeric },
623
624 { "loongson3a", 1, bfd_mach_mips_loongson_3a, CPU_LOONGSON_3A,
625 ISA_MIPS64R2 | INSN_LOONGSON_3A, 0, mips_cp0_names_numeric,
626 NULL, 0, mips_cp1_names_mips3264, mips_hwr_names_numeric },
627
628 { "octeon", 1, bfd_mach_mips_octeon, CPU_OCTEON,
629 ISA_MIPS64R2 | INSN_OCTEON, 0, mips_cp0_names_numeric, NULL, 0,
630 mips_cp1_names_mips3264, mips_hwr_names_numeric },
631
632 { "octeon+", 1, bfd_mach_mips_octeonp, CPU_OCTEONP,
633 ISA_MIPS64R2 | INSN_OCTEONP, 0, mips_cp0_names_numeric,
634 NULL, 0, mips_cp1_names_mips3264, mips_hwr_names_numeric },
635
636 { "octeon2", 1, bfd_mach_mips_octeon2, CPU_OCTEON2,
637 ISA_MIPS64R2 | INSN_OCTEON2, 0, mips_cp0_names_numeric,
638 NULL, 0, mips_cp1_names_mips3264, mips_hwr_names_numeric },
639
640 { "octeon3", 1, bfd_mach_mips_octeon3, CPU_OCTEON3,
641 ISA_MIPS64R5 | INSN_OCTEON3, ASE_VIRT | ASE_VIRT64,
642 mips_cp0_names_numeric,
643 NULL, 0, mips_cp1_names_mips3264, mips_hwr_names_numeric },
644
645 { "xlr", 1, bfd_mach_mips_xlr, CPU_XLR,
646 ISA_MIPS64 | INSN_XLR, 0,
647 mips_cp0_names_xlr,
648 mips_cp0sel_names_xlr, ARRAY_SIZE (mips_cp0sel_names_xlr),
649 mips_cp1_names_mips3264, mips_hwr_names_numeric },
650
651 /* XLP is mostly like XLR, with the prominent exception it is being
652 MIPS64R2. */
653 { "xlp", 1, bfd_mach_mips_xlr, CPU_XLR,
654 ISA_MIPS64R2 | INSN_XLR, 0,
655 mips_cp0_names_xlr,
656 mips_cp0sel_names_xlr, ARRAY_SIZE (mips_cp0sel_names_xlr),
657 mips_cp1_names_mips3264, mips_hwr_names_numeric },
658
659 /* This entry, mips16, is here only for ISA/processor selection; do
660 not print its name. */
661 { "", 1, bfd_mach_mips16, CPU_MIPS16, ISA_MIPS64, 0,
662 mips_cp0_names_numeric, NULL, 0, mips_cp1_names_numeric,
663 mips_hwr_names_numeric },
664 };
665
666 /* ISA and processor type to disassemble for, and register names to use.
667 set_default_mips_dis_options and parse_mips_dis_options fill in these
668 values. */
669 static int mips_processor;
670 static int mips_isa;
671 static int mips_ase;
672 static int micromips_ase;
673 static const char * const *mips_gpr_names;
674 static const char * const *mips_fpr_names;
675 static const char * const *mips_cp0_names;
676 static const struct mips_cp0sel_name *mips_cp0sel_names;
677 static int mips_cp0sel_names_len;
678 static const char * const *mips_cp1_names;
679 static const char * const *mips_hwr_names;
680
681 /* Other options */
682 static int no_aliases; /* If set disassemble as most general inst. */
683 \f
684 static const struct mips_abi_choice *
685 choose_abi_by_name (const char *name, unsigned int namelen)
686 {
687 const struct mips_abi_choice *c;
688 unsigned int i;
689
690 for (i = 0, c = NULL; i < ARRAY_SIZE (mips_abi_choices) && c == NULL; i++)
691 if (strncmp (mips_abi_choices[i].name, name, namelen) == 0
692 && strlen (mips_abi_choices[i].name) == namelen)
693 c = &mips_abi_choices[i];
694
695 return c;
696 }
697
698 static const struct mips_arch_choice *
699 choose_arch_by_name (const char *name, unsigned int namelen)
700 {
701 const struct mips_arch_choice *c = NULL;
702 unsigned int i;
703
704 for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++)
705 if (strncmp (mips_arch_choices[i].name, name, namelen) == 0
706 && strlen (mips_arch_choices[i].name) == namelen)
707 c = &mips_arch_choices[i];
708
709 return c;
710 }
711
712 static const struct mips_arch_choice *
713 choose_arch_by_number (unsigned long mach)
714 {
715 static unsigned long hint_bfd_mach;
716 static const struct mips_arch_choice *hint_arch_choice;
717 const struct mips_arch_choice *c;
718 unsigned int i;
719
720 /* We optimize this because even if the user specifies no
721 flags, this will be done for every instruction! */
722 if (hint_bfd_mach == mach
723 && hint_arch_choice != NULL
724 && hint_arch_choice->bfd_mach == hint_bfd_mach)
725 return hint_arch_choice;
726
727 for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++)
728 {
729 if (mips_arch_choices[i].bfd_mach_valid
730 && mips_arch_choices[i].bfd_mach == mach)
731 {
732 c = &mips_arch_choices[i];
733 hint_bfd_mach = mach;
734 hint_arch_choice = c;
735 }
736 }
737 return c;
738 }
739
740 /* Check if the object uses NewABI conventions. */
741
742 static int
743 is_newabi (Elf_Internal_Ehdr *header)
744 {
745 /* There are no old-style ABIs which use 64-bit ELF. */
746 if (header->e_ident[EI_CLASS] == ELFCLASS64)
747 return 1;
748
749 /* If a 32-bit ELF file, n32 is a new-style ABI. */
750 if ((header->e_flags & EF_MIPS_ABI2) != 0)
751 return 1;
752
753 return 0;
754 }
755
756 /* Check if the object has microMIPS ASE code. */
757
758 static int
759 is_micromips (Elf_Internal_Ehdr *header)
760 {
761 if ((header->e_flags & EF_MIPS_ARCH_ASE_MICROMIPS) != 0)
762 return 1;
763
764 return 0;
765 }
766
767 /* Convert ASE flags from .MIPS.abiflags to internal values. */
768
769 static unsigned long
770 mips_convert_abiflags_ases (unsigned long afl_ases)
771 {
772 unsigned long opcode_ases = 0;
773
774 if (afl_ases & AFL_ASE_DSP)
775 opcode_ases |= ASE_DSP;
776 if (afl_ases & AFL_ASE_DSPR2)
777 opcode_ases |= ASE_DSPR2;
778 if (afl_ases & AFL_ASE_EVA)
779 opcode_ases |= ASE_EVA;
780 if (afl_ases & AFL_ASE_MCU)
781 opcode_ases |= ASE_MCU;
782 if (afl_ases & AFL_ASE_MDMX)
783 opcode_ases |= ASE_MDMX;
784 if (afl_ases & AFL_ASE_MIPS3D)
785 opcode_ases |= ASE_MIPS3D;
786 if (afl_ases & AFL_ASE_MT)
787 opcode_ases |= ASE_MT;
788 if (afl_ases & AFL_ASE_SMARTMIPS)
789 opcode_ases |= ASE_SMARTMIPS;
790 if (afl_ases & AFL_ASE_VIRT)
791 opcode_ases |= ASE_VIRT;
792 if (afl_ases & AFL_ASE_MSA)
793 opcode_ases |= ASE_MSA;
794 if (afl_ases & AFL_ASE_XPA)
795 opcode_ases |= ASE_XPA;
796 if (afl_ases & AFL_ASE_DSPR3)
797 opcode_ases |= ASE_DSPR3;
798 return opcode_ases;
799 }
800
801 static void
802 set_default_mips_dis_options (struct disassemble_info *info)
803 {
804 const struct mips_arch_choice *chosen_arch;
805
806 /* Defaults: mipsIII/r3000 (?!), no microMIPS ASE (any compressed code
807 is MIPS16 ASE) (o)32-style ("oldabi") GPR names, and numeric FPR,
808 CP0 register, and HWR names. */
809 mips_isa = ISA_MIPS3;
810 mips_processor = CPU_R3000;
811 micromips_ase = 0;
812 mips_ase = 0;
813 mips_gpr_names = mips_gpr_names_oldabi;
814 mips_fpr_names = mips_fpr_names_numeric;
815 mips_cp0_names = mips_cp0_names_numeric;
816 mips_cp0sel_names = NULL;
817 mips_cp0sel_names_len = 0;
818 mips_cp1_names = mips_cp1_names_numeric;
819 mips_hwr_names = mips_hwr_names_numeric;
820 no_aliases = 0;
821
822 /* Set ISA, architecture, and cp0 register names as best we can. */
823 #if ! SYMTAB_AVAILABLE
824 /* This is running out on a target machine, not in a host tool.
825 FIXME: Where does mips_target_info come from? */
826 target_processor = mips_target_info.processor;
827 mips_isa = mips_target_info.isa;
828 mips_ase = mips_target_info.ase;
829 #else
830 chosen_arch = choose_arch_by_number (info->mach);
831 if (chosen_arch != NULL)
832 {
833 mips_processor = chosen_arch->processor;
834 mips_isa = chosen_arch->isa;
835 mips_ase = chosen_arch->ase;
836 mips_cp0_names = chosen_arch->cp0_names;
837 mips_cp0sel_names = chosen_arch->cp0sel_names;
838 mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
839 mips_cp1_names = chosen_arch->cp1_names;
840 mips_hwr_names = chosen_arch->hwr_names;
841 }
842
843 /* Update settings according to the ELF file header flags. */
844 if (info->flavour == bfd_target_elf_flavour && info->section != NULL)
845 {
846 struct bfd *abfd = info->section->owner;
847 Elf_Internal_Ehdr *header = elf_elfheader (abfd);
848 Elf_Internal_ABIFlags_v0 *abiflags = NULL;
849
850 /* We won't ever get here if !HAVE_BFD_MIPS_ELF_GET_ABIFLAGS,
851 because we won't then have a MIPS/ELF BFD, however we need
852 to guard against a link error in a `--enable-targets=...'
853 configuration with a 32-bit host where the MIPS target is
854 a secondary, or with MIPS/ECOFF configurations. */
855 #ifdef HAVE_BFD_MIPS_ELF_GET_ABIFLAGS
856 abiflags = bfd_mips_elf_get_abiflags (abfd);
857 #endif
858 /* If an ELF "newabi" binary, use the n32/(n)64 GPR names. */
859 if (is_newabi (header))
860 mips_gpr_names = mips_gpr_names_newabi;
861 /* If a microMIPS binary, then don't use MIPS16 bindings. */
862 micromips_ase = is_micromips (header);
863 /* OR in any extra ASE flags set in ELF file structures. */
864 if (abiflags)
865 mips_ase |= mips_convert_abiflags_ases (abiflags->ases);
866 else if (header->e_flags & EF_MIPS_ARCH_ASE_MDMX)
867 mips_ase |= ASE_MDMX;
868 }
869 #endif
870 }
871
872 static void
873 parse_mips_dis_option (const char *option, unsigned int len)
874 {
875 unsigned int i, optionlen, vallen;
876 const char *val;
877 const struct mips_abi_choice *chosen_abi;
878 const struct mips_arch_choice *chosen_arch;
879
880 /* Try to match options that are simple flags */
881 if (CONST_STRNEQ (option, "no-aliases"))
882 {
883 no_aliases = 1;
884 return;
885 }
886
887 if (CONST_STRNEQ (option, "msa"))
888 {
889 mips_ase |= ASE_MSA;
890 if ((mips_isa & INSN_ISA_MASK) == ISA_MIPS64R2
891 || (mips_isa & INSN_ISA_MASK) == ISA_MIPS64R3
892 || (mips_isa & INSN_ISA_MASK) == ISA_MIPS64R5
893 || (mips_isa & INSN_ISA_MASK) == ISA_MIPS64R6)
894 mips_ase |= ASE_MSA64;
895 return;
896 }
897
898 if (CONST_STRNEQ (option, "virt"))
899 {
900 mips_ase |= ASE_VIRT;
901 if (mips_isa & ISA_MIPS64R2
902 || mips_isa & ISA_MIPS64R3
903 || mips_isa & ISA_MIPS64R5
904 || mips_isa & ISA_MIPS64R6)
905 mips_ase |= ASE_VIRT64;
906 return;
907 }
908
909 if (CONST_STRNEQ (option, "xpa"))
910 {
911 mips_ase |= ASE_XPA;
912 return;
913 }
914
915
916 /* Look for the = that delimits the end of the option name. */
917 for (i = 0; i < len; i++)
918 if (option[i] == '=')
919 break;
920
921 if (i == 0) /* Invalid option: no name before '='. */
922 return;
923 if (i == len) /* Invalid option: no '='. */
924 return;
925 if (i == (len - 1)) /* Invalid option: no value after '='. */
926 return;
927
928 optionlen = i;
929 val = option + (optionlen + 1);
930 vallen = len - (optionlen + 1);
931
932 if (strncmp ("gpr-names", option, optionlen) == 0
933 && strlen ("gpr-names") == optionlen)
934 {
935 chosen_abi = choose_abi_by_name (val, vallen);
936 if (chosen_abi != NULL)
937 mips_gpr_names = chosen_abi->gpr_names;
938 return;
939 }
940
941 if (strncmp ("fpr-names", option, optionlen) == 0
942 && strlen ("fpr-names") == optionlen)
943 {
944 chosen_abi = choose_abi_by_name (val, vallen);
945 if (chosen_abi != NULL)
946 mips_fpr_names = chosen_abi->fpr_names;
947 return;
948 }
949
950 if (strncmp ("cp0-names", option, optionlen) == 0
951 && strlen ("cp0-names") == optionlen)
952 {
953 chosen_arch = choose_arch_by_name (val, vallen);
954 if (chosen_arch != NULL)
955 {
956 mips_cp0_names = chosen_arch->cp0_names;
957 mips_cp0sel_names = chosen_arch->cp0sel_names;
958 mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
959 }
960 return;
961 }
962
963 if (strncmp ("cp1-names", option, optionlen) == 0
964 && strlen ("cp1-names") == optionlen)
965 {
966 chosen_arch = choose_arch_by_name (val, vallen);
967 if (chosen_arch != NULL)
968 mips_cp1_names = chosen_arch->cp1_names;
969 return;
970 }
971
972 if (strncmp ("hwr-names", option, optionlen) == 0
973 && strlen ("hwr-names") == optionlen)
974 {
975 chosen_arch = choose_arch_by_name (val, vallen);
976 if (chosen_arch != NULL)
977 mips_hwr_names = chosen_arch->hwr_names;
978 return;
979 }
980
981 if (strncmp ("reg-names", option, optionlen) == 0
982 && strlen ("reg-names") == optionlen)
983 {
984 /* We check both ABI and ARCH here unconditionally, so
985 that "numeric" will do the desirable thing: select
986 numeric register names for all registers. Other than
987 that, a given name probably won't match both. */
988 chosen_abi = choose_abi_by_name (val, vallen);
989 if (chosen_abi != NULL)
990 {
991 mips_gpr_names = chosen_abi->gpr_names;
992 mips_fpr_names = chosen_abi->fpr_names;
993 }
994 chosen_arch = choose_arch_by_name (val, vallen);
995 if (chosen_arch != NULL)
996 {
997 mips_cp0_names = chosen_arch->cp0_names;
998 mips_cp0sel_names = chosen_arch->cp0sel_names;
999 mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
1000 mips_cp1_names = chosen_arch->cp1_names;
1001 mips_hwr_names = chosen_arch->hwr_names;
1002 }
1003 return;
1004 }
1005
1006 /* Invalid option. */
1007 }
1008
1009 static void
1010 parse_mips_dis_options (const char *options)
1011 {
1012 const char *option_end;
1013
1014 if (options == NULL)
1015 return;
1016
1017 while (*options != '\0')
1018 {
1019 /* Skip empty options. */
1020 if (*options == ',')
1021 {
1022 options++;
1023 continue;
1024 }
1025
1026 /* We know that *options is neither NUL or a comma. */
1027 option_end = options + 1;
1028 while (*option_end != ',' && *option_end != '\0')
1029 option_end++;
1030
1031 parse_mips_dis_option (options, option_end - options);
1032
1033 /* Go on to the next one. If option_end points to a comma, it
1034 will be skipped above. */
1035 options = option_end;
1036 }
1037 }
1038
1039 static const struct mips_cp0sel_name *
1040 lookup_mips_cp0sel_name (const struct mips_cp0sel_name *names,
1041 unsigned int len,
1042 unsigned int cp0reg,
1043 unsigned int sel)
1044 {
1045 unsigned int i;
1046
1047 for (i = 0; i < len; i++)
1048 if (names[i].cp0reg == cp0reg && names[i].sel == sel)
1049 return &names[i];
1050 return NULL;
1051 }
1052
1053 /* Print register REGNO, of type TYPE, for instruction OPCODE. */
1054
1055 static void
1056 print_reg (struct disassemble_info *info, const struct mips_opcode *opcode,
1057 enum mips_reg_operand_type type, int regno)
1058 {
1059 switch (type)
1060 {
1061 case OP_REG_GP:
1062 info->fprintf_func (info->stream, "%s", mips_gpr_names[regno]);
1063 break;
1064
1065 case OP_REG_FP:
1066 info->fprintf_func (info->stream, "%s", mips_fpr_names[regno]);
1067 break;
1068
1069 case OP_REG_CCC:
1070 if (opcode->pinfo & (FP_D | FP_S))
1071 info->fprintf_func (info->stream, "$fcc%d", regno);
1072 else
1073 info->fprintf_func (info->stream, "$cc%d", regno);
1074 break;
1075
1076 case OP_REG_VEC:
1077 if (opcode->membership & INSN_5400)
1078 info->fprintf_func (info->stream, "$f%d", regno);
1079 else
1080 info->fprintf_func (info->stream, "$v%d", regno);
1081 break;
1082
1083 case OP_REG_ACC:
1084 info->fprintf_func (info->stream, "$ac%d", regno);
1085 break;
1086
1087 case OP_REG_COPRO:
1088 if (opcode->name[strlen (opcode->name) - 1] == '0')
1089 info->fprintf_func (info->stream, "%s", mips_cp0_names[regno]);
1090 else if (opcode->name[strlen (opcode->name) - 1] == '1')
1091 info->fprintf_func (info->stream, "%s", mips_cp1_names[regno]);
1092 else
1093 info->fprintf_func (info->stream, "$%d", regno);
1094 break;
1095
1096 case OP_REG_HW:
1097 info->fprintf_func (info->stream, "%s", mips_hwr_names[regno]);
1098 break;
1099
1100 case OP_REG_VF:
1101 info->fprintf_func (info->stream, "$vf%d", regno);
1102 break;
1103
1104 case OP_REG_VI:
1105 info->fprintf_func (info->stream, "$vi%d", regno);
1106 break;
1107
1108 case OP_REG_R5900_I:
1109 info->fprintf_func (info->stream, "$I");
1110 break;
1111
1112 case OP_REG_R5900_Q:
1113 info->fprintf_func (info->stream, "$Q");
1114 break;
1115
1116 case OP_REG_R5900_R:
1117 info->fprintf_func (info->stream, "$R");
1118 break;
1119
1120 case OP_REG_R5900_ACC:
1121 info->fprintf_func (info->stream, "$ACC");
1122 break;
1123
1124 case OP_REG_MSA:
1125 info->fprintf_func (info->stream, "$w%d", regno);
1126 break;
1127
1128 case OP_REG_MSA_CTRL:
1129 info->fprintf_func (info->stream, "%s", msa_control_names[regno]);
1130 break;
1131
1132 }
1133 }
1134 \f
1135 /* Used to track the state carried over from previous operands in
1136 an instruction. */
1137 struct mips_print_arg_state {
1138 /* The value of the last OP_INT seen. We only use this for OP_MSB,
1139 where the value is known to be unsigned and small. */
1140 unsigned int last_int;
1141
1142 /* The type and number of the last OP_REG seen. We only use this for
1143 OP_REPEAT_DEST_REG and OP_REPEAT_PREV_REG. */
1144 enum mips_reg_operand_type last_reg_type;
1145 unsigned int last_regno;
1146 unsigned int dest_regno;
1147 unsigned int seen_dest;
1148 };
1149
1150 /* Initialize STATE for the start of an instruction. */
1151
1152 static inline void
1153 init_print_arg_state (struct mips_print_arg_state *state)
1154 {
1155 memset (state, 0, sizeof (*state));
1156 }
1157
1158 /* Print OP_VU0_SUFFIX or OP_VU0_MATCH_SUFFIX operand OPERAND,
1159 whose value is given by UVAL. */
1160
1161 static void
1162 print_vu0_channel (struct disassemble_info *info,
1163 const struct mips_operand *operand, unsigned int uval)
1164 {
1165 if (operand->size == 4)
1166 info->fprintf_func (info->stream, "%s%s%s%s",
1167 uval & 8 ? "x" : "",
1168 uval & 4 ? "y" : "",
1169 uval & 2 ? "z" : "",
1170 uval & 1 ? "w" : "");
1171 else if (operand->size == 2)
1172 info->fprintf_func (info->stream, "%c", "xyzw"[uval]);
1173 else
1174 abort ();
1175 }
1176
1177 /* Record information about a register operand. */
1178
1179 static void
1180 mips_seen_register (struct mips_print_arg_state *state,
1181 unsigned int regno,
1182 enum mips_reg_operand_type reg_type)
1183 {
1184 state->last_reg_type = reg_type;
1185 state->last_regno = regno;
1186
1187 if (!state->seen_dest)
1188 {
1189 state->seen_dest = 1;
1190 state->dest_regno = regno;
1191 }
1192 }
1193
1194 /* Print operand OPERAND of OPCODE, using STATE to track inter-operand state.
1195 UVAL is the encoding of the operand (shifted into bit 0) and BASE_PC is
1196 the base address for OP_PCREL operands. */
1197
1198 static void
1199 print_insn_arg (struct disassemble_info *info,
1200 struct mips_print_arg_state *state,
1201 const struct mips_opcode *opcode,
1202 const struct mips_operand *operand,
1203 bfd_vma base_pc,
1204 unsigned int uval)
1205 {
1206 const fprintf_ftype infprintf = info->fprintf_func;
1207 void *is = info->stream;
1208
1209 switch (operand->type)
1210 {
1211 case OP_INT:
1212 {
1213 const struct mips_int_operand *int_op;
1214
1215 int_op = (const struct mips_int_operand *) operand;
1216 uval = mips_decode_int_operand (int_op, uval);
1217 state->last_int = uval;
1218 if (int_op->print_hex)
1219 infprintf (is, "0x%x", uval);
1220 else
1221 infprintf (is, "%d", uval);
1222 }
1223 break;
1224
1225 case OP_MAPPED_INT:
1226 {
1227 const struct mips_mapped_int_operand *mint_op;
1228
1229 mint_op = (const struct mips_mapped_int_operand *) operand;
1230 uval = mint_op->int_map[uval];
1231 state->last_int = uval;
1232 if (mint_op->print_hex)
1233 infprintf (is, "0x%x", uval);
1234 else
1235 infprintf (is, "%d", uval);
1236 }
1237 break;
1238
1239 case OP_MSB:
1240 {
1241 const struct mips_msb_operand *msb_op;
1242
1243 msb_op = (const struct mips_msb_operand *) operand;
1244 uval += msb_op->bias;
1245 if (msb_op->add_lsb)
1246 uval -= state->last_int;
1247 infprintf (is, "0x%x", uval);
1248 }
1249 break;
1250
1251 case OP_REG:
1252 case OP_OPTIONAL_REG:
1253 {
1254 const struct mips_reg_operand *reg_op;
1255
1256 reg_op = (const struct mips_reg_operand *) operand;
1257 uval = mips_decode_reg_operand (reg_op, uval);
1258 print_reg (info, opcode, reg_op->reg_type, uval);
1259
1260 mips_seen_register (state, uval, reg_op->reg_type);
1261 }
1262 break;
1263
1264 case OP_REG_PAIR:
1265 {
1266 const struct mips_reg_pair_operand *pair_op;
1267
1268 pair_op = (const struct mips_reg_pair_operand *) operand;
1269 print_reg (info, opcode, pair_op->reg_type,
1270 pair_op->reg1_map[uval]);
1271 infprintf (is, ",");
1272 print_reg (info, opcode, pair_op->reg_type,
1273 pair_op->reg2_map[uval]);
1274 }
1275 break;
1276
1277 case OP_PCREL:
1278 {
1279 const struct mips_pcrel_operand *pcrel_op;
1280
1281 pcrel_op = (const struct mips_pcrel_operand *) operand;
1282 info->target = mips_decode_pcrel_operand (pcrel_op, base_pc, uval);
1283
1284 /* Preserve the ISA bit for the GDB disassembler,
1285 otherwise clear it. */
1286 if (info->flavour != bfd_target_unknown_flavour)
1287 info->target &= -2;
1288
1289 (*info->print_address_func) (info->target, info);
1290 }
1291 break;
1292
1293 case OP_PERF_REG:
1294 infprintf (is, "%d", uval);
1295 break;
1296
1297 case OP_ADDIUSP_INT:
1298 {
1299 int sval;
1300
1301 sval = mips_signed_operand (operand, uval) * 4;
1302 if (sval >= -8 && sval < 8)
1303 sval ^= 0x400;
1304 infprintf (is, "%d", sval);
1305 break;
1306 }
1307
1308 case OP_CLO_CLZ_DEST:
1309 {
1310 unsigned int reg1, reg2;
1311
1312 reg1 = uval & 31;
1313 reg2 = uval >> 5;
1314 /* If one is zero use the other. */
1315 if (reg1 == reg2 || reg2 == 0)
1316 infprintf (is, "%s", mips_gpr_names[reg1]);
1317 else if (reg1 == 0)
1318 infprintf (is, "%s", mips_gpr_names[reg2]);
1319 else
1320 /* Bogus, result depends on processor. */
1321 infprintf (is, "%s or %s", mips_gpr_names[reg1],
1322 mips_gpr_names[reg2]);
1323 }
1324 break;
1325
1326 case OP_SAME_RS_RT:
1327 case OP_CHECK_PREV:
1328 case OP_NON_ZERO_REG:
1329 {
1330 print_reg (info, opcode, OP_REG_GP, uval & 31);
1331 mips_seen_register (state, uval, OP_REG_GP);
1332 }
1333 break;
1334
1335 case OP_LWM_SWM_LIST:
1336 if (operand->size == 2)
1337 {
1338 if (uval == 0)
1339 infprintf (is, "%s,%s",
1340 mips_gpr_names[16],
1341 mips_gpr_names[31]);
1342 else
1343 infprintf (is, "%s-%s,%s",
1344 mips_gpr_names[16],
1345 mips_gpr_names[16 + uval],
1346 mips_gpr_names[31]);
1347 }
1348 else
1349 {
1350 int s_reg_encode;
1351
1352 s_reg_encode = uval & 0xf;
1353 if (s_reg_encode != 0)
1354 {
1355 if (s_reg_encode == 1)
1356 infprintf (is, "%s", mips_gpr_names[16]);
1357 else if (s_reg_encode < 9)
1358 infprintf (is, "%s-%s",
1359 mips_gpr_names[16],
1360 mips_gpr_names[15 + s_reg_encode]);
1361 else if (s_reg_encode == 9)
1362 infprintf (is, "%s-%s,%s",
1363 mips_gpr_names[16],
1364 mips_gpr_names[23],
1365 mips_gpr_names[30]);
1366 else
1367 infprintf (is, "UNKNOWN");
1368 }
1369
1370 if (uval & 0x10) /* For ra. */
1371 {
1372 if (s_reg_encode == 0)
1373 infprintf (is, "%s", mips_gpr_names[31]);
1374 else
1375 infprintf (is, ",%s", mips_gpr_names[31]);
1376 }
1377 }
1378 break;
1379
1380 case OP_ENTRY_EXIT_LIST:
1381 {
1382 const char *sep;
1383 unsigned int amask, smask;
1384
1385 sep = "";
1386 amask = (uval >> 3) & 7;
1387 if (amask > 0 && amask < 5)
1388 {
1389 infprintf (is, "%s", mips_gpr_names[4]);
1390 if (amask > 1)
1391 infprintf (is, "-%s", mips_gpr_names[amask + 3]);
1392 sep = ",";
1393 }
1394
1395 smask = (uval >> 1) & 3;
1396 if (smask == 3)
1397 {
1398 infprintf (is, "%s??", sep);
1399 sep = ",";
1400 }
1401 else if (smask > 0)
1402 {
1403 infprintf (is, "%s%s", sep, mips_gpr_names[16]);
1404 if (smask > 1)
1405 infprintf (is, "-%s", mips_gpr_names[smask + 15]);
1406 sep = ",";
1407 }
1408
1409 if (uval & 1)
1410 {
1411 infprintf (is, "%s%s", sep, mips_gpr_names[31]);
1412 sep = ",";
1413 }
1414
1415 if (amask == 5 || amask == 6)
1416 {
1417 infprintf (is, "%s%s", sep, mips_fpr_names[0]);
1418 if (amask == 6)
1419 infprintf (is, "-%s", mips_fpr_names[1]);
1420 }
1421 }
1422 break;
1423
1424 case OP_SAVE_RESTORE_LIST:
1425 /* Should be handled by the caller due to extend behavior. */
1426 abort ();
1427
1428 case OP_MDMX_IMM_REG:
1429 {
1430 unsigned int vsel;
1431
1432 vsel = uval >> 5;
1433 uval &= 31;
1434 if ((vsel & 0x10) == 0)
1435 {
1436 int fmt;
1437
1438 vsel &= 0x0f;
1439 for (fmt = 0; fmt < 3; fmt++, vsel >>= 1)
1440 if ((vsel & 1) == 0)
1441 break;
1442 print_reg (info, opcode, OP_REG_VEC, uval);
1443 infprintf (is, "[%d]", vsel >> 1);
1444 }
1445 else if ((vsel & 0x08) == 0)
1446 print_reg (info, opcode, OP_REG_VEC, uval);
1447 else
1448 infprintf (is, "0x%x", uval);
1449 }
1450 break;
1451
1452 case OP_REPEAT_PREV_REG:
1453 print_reg (info, opcode, state->last_reg_type, state->last_regno);
1454 break;
1455
1456 case OP_REPEAT_DEST_REG:
1457 print_reg (info, opcode, state->last_reg_type, state->dest_regno);
1458 break;
1459
1460 case OP_PC:
1461 infprintf (is, "$pc");
1462 break;
1463
1464 case OP_VU0_SUFFIX:
1465 case OP_VU0_MATCH_SUFFIX:
1466 print_vu0_channel (info, operand, uval);
1467 break;
1468
1469 case OP_IMM_INDEX:
1470 infprintf (is, "[%d]", uval);
1471 break;
1472
1473 case OP_REG_INDEX:
1474 infprintf (is, "[");
1475 print_reg (info, opcode, OP_REG_GP, uval);
1476 infprintf (is, "]");
1477 break;
1478 }
1479 }
1480
1481 /* Validate the arguments for INSN, which is described by OPCODE.
1482 Use DECODE_OPERAND to get the encoding of each operand. */
1483
1484 static bfd_boolean
1485 validate_insn_args (const struct mips_opcode *opcode,
1486 const struct mips_operand *(*decode_operand) (const char *),
1487 unsigned int insn)
1488 {
1489 struct mips_print_arg_state state;
1490 const struct mips_operand *operand;
1491 const char *s;
1492 unsigned int uval;
1493
1494 init_print_arg_state (&state);
1495 for (s = opcode->args; *s; ++s)
1496 {
1497 switch (*s)
1498 {
1499 case ',':
1500 case '(':
1501 case ')':
1502 break;
1503
1504 case '#':
1505 ++s;
1506 break;
1507
1508 default:
1509 operand = decode_operand (s);
1510
1511 if (operand)
1512 {
1513 uval = mips_extract_operand (operand, insn);
1514 switch (operand->type)
1515 {
1516 case OP_REG:
1517 case OP_OPTIONAL_REG:
1518 {
1519 const struct mips_reg_operand *reg_op;
1520
1521 reg_op = (const struct mips_reg_operand *) operand;
1522 uval = mips_decode_reg_operand (reg_op, uval);
1523 mips_seen_register (&state, uval, reg_op->reg_type);
1524 }
1525 break;
1526
1527 case OP_SAME_RS_RT:
1528 {
1529 unsigned int reg1, reg2;
1530
1531 reg1 = uval & 31;
1532 reg2 = uval >> 5;
1533
1534 if (reg1 != reg2 || reg1 == 0)
1535 return FALSE;
1536 }
1537 break;
1538
1539 case OP_CHECK_PREV:
1540 {
1541 const struct mips_check_prev_operand *prev_op;
1542
1543 prev_op = (const struct mips_check_prev_operand *) operand;
1544
1545 if (!prev_op->zero_ok && uval == 0)
1546 return FALSE;
1547
1548 if (((prev_op->less_than_ok && uval < state.last_regno)
1549 || (prev_op->greater_than_ok && uval > state.last_regno)
1550 || (prev_op->equal_ok && uval == state.last_regno)))
1551 break;
1552
1553 return FALSE;
1554 }
1555
1556 case OP_NON_ZERO_REG:
1557 {
1558 if (uval == 0)
1559 return FALSE;
1560 }
1561 break;
1562
1563 case OP_INT:
1564 case OP_MAPPED_INT:
1565 case OP_MSB:
1566 case OP_REG_PAIR:
1567 case OP_PCREL:
1568 case OP_PERF_REG:
1569 case OP_ADDIUSP_INT:
1570 case OP_CLO_CLZ_DEST:
1571 case OP_LWM_SWM_LIST:
1572 case OP_ENTRY_EXIT_LIST:
1573 case OP_MDMX_IMM_REG:
1574 case OP_REPEAT_PREV_REG:
1575 case OP_REPEAT_DEST_REG:
1576 case OP_PC:
1577 case OP_VU0_SUFFIX:
1578 case OP_VU0_MATCH_SUFFIX:
1579 case OP_IMM_INDEX:
1580 case OP_REG_INDEX:
1581 break;
1582
1583 case OP_SAVE_RESTORE_LIST:
1584 /* Should be handled by the caller due to extend behavior. */
1585 abort ();
1586 }
1587 }
1588 if (*s == 'm' || *s == '+' || *s == '-')
1589 ++s;
1590 }
1591 }
1592 return TRUE;
1593 }
1594
1595 /* Print the arguments for INSN, which is described by OPCODE.
1596 Use DECODE_OPERAND to get the encoding of each operand. Use BASE_PC
1597 as the base of OP_PCREL operands, adjusting by LENGTH if the OP_PCREL
1598 operand is for a branch or jump. */
1599
1600 static void
1601 print_insn_args (struct disassemble_info *info,
1602 const struct mips_opcode *opcode,
1603 const struct mips_operand *(*decode_operand) (const char *),
1604 unsigned int insn, bfd_vma insn_pc, unsigned int length)
1605 {
1606 const fprintf_ftype infprintf = info->fprintf_func;
1607 void *is = info->stream;
1608 struct mips_print_arg_state state;
1609 const struct mips_operand *operand;
1610 const char *s;
1611
1612 init_print_arg_state (&state);
1613 for (s = opcode->args; *s; ++s)
1614 {
1615 switch (*s)
1616 {
1617 case ',':
1618 case '(':
1619 case ')':
1620 infprintf (is, "%c", *s);
1621 break;
1622
1623 case '#':
1624 ++s;
1625 infprintf (is, "%c%c", *s, *s);
1626 break;
1627
1628 default:
1629 operand = decode_operand (s);
1630 if (!operand)
1631 {
1632 /* xgettext:c-format */
1633 infprintf (is,
1634 _("# internal error, undefined operand in `%s %s'"),
1635 opcode->name, opcode->args);
1636 return;
1637 }
1638 if (operand->type == OP_REG
1639 && s[1] == ','
1640 && s[2] == 'H'
1641 && opcode->name[strlen (opcode->name) - 1] == '0')
1642 {
1643 /* Coprocessor register 0 with sel field (MT ASE). */
1644 const struct mips_cp0sel_name *n;
1645 unsigned int reg, sel;
1646
1647 reg = mips_extract_operand (operand, insn);
1648 s += 2;
1649 operand = decode_operand (s);
1650 sel = mips_extract_operand (operand, insn);
1651
1652 /* CP0 register including 'sel' code for mftc0, to be
1653 printed textually if known. If not known, print both
1654 CP0 register name and sel numerically since CP0 register
1655 with sel 0 may have a name unrelated to register being
1656 printed. */
1657 n = lookup_mips_cp0sel_name (mips_cp0sel_names,
1658 mips_cp0sel_names_len,
1659 reg, sel);
1660 if (n != NULL)
1661 infprintf (is, "%s", n->name);
1662 else
1663 infprintf (is, "$%d,%d", reg, sel);
1664 }
1665 else
1666 {
1667 bfd_vma base_pc = insn_pc;
1668
1669 /* Adjust the PC relative base so that branch/jump insns use
1670 the following PC as the base but genuinely PC relative
1671 operands use the current PC. */
1672 if (operand->type == OP_PCREL)
1673 {
1674 const struct mips_pcrel_operand *pcrel_op;
1675
1676 pcrel_op = (const struct mips_pcrel_operand *) operand;
1677 /* The include_isa_bit flag is sufficient to distinguish
1678 branch/jump from other PC relative operands. */
1679 if (pcrel_op->include_isa_bit)
1680 base_pc += length;
1681 }
1682
1683 print_insn_arg (info, &state, opcode, operand, base_pc,
1684 mips_extract_operand (operand, insn));
1685 }
1686 if (*s == 'm' || *s == '+' || *s == '-')
1687 ++s;
1688 break;
1689 }
1690 }
1691 }
1692 \f
1693 /* Print the mips instruction at address MEMADDR in debugged memory,
1694 on using INFO. Returns length of the instruction, in bytes, which is
1695 always INSNLEN. BIGENDIAN must be 1 if this is big-endian code, 0 if
1696 this is little-endian code. */
1697
1698 static int
1699 print_insn_mips (bfd_vma memaddr,
1700 int word,
1701 struct disassemble_info *info)
1702 {
1703 #define GET_OP(insn, field) \
1704 (((insn) >> OP_SH_##field) & OP_MASK_##field)
1705 static const struct mips_opcode *mips_hash[OP_MASK_OP + 1];
1706 const fprintf_ftype infprintf = info->fprintf_func;
1707 const struct mips_opcode *op;
1708 static bfd_boolean init = 0;
1709 void *is = info->stream;
1710
1711 /* Build a hash table to shorten the search time. */
1712 if (! init)
1713 {
1714 unsigned int i;
1715
1716 for (i = 0; i <= OP_MASK_OP; i++)
1717 {
1718 for (op = mips_opcodes; op < &mips_opcodes[NUMOPCODES]; op++)
1719 {
1720 if (op->pinfo == INSN_MACRO
1721 || (no_aliases && (op->pinfo2 & INSN2_ALIAS)))
1722 continue;
1723 if (i == GET_OP (op->match, OP))
1724 {
1725 mips_hash[i] = op;
1726 break;
1727 }
1728 }
1729 }
1730
1731 init = 1;
1732 }
1733
1734 info->bytes_per_chunk = INSNLEN;
1735 info->display_endian = info->endian;
1736 info->insn_info_valid = 1;
1737 info->branch_delay_insns = 0;
1738 info->data_size = 0;
1739 info->insn_type = dis_nonbranch;
1740 info->target = 0;
1741 info->target2 = 0;
1742
1743 op = mips_hash[GET_OP (word, OP)];
1744 if (op != NULL)
1745 {
1746 for (; op < &mips_opcodes[NUMOPCODES]; op++)
1747 {
1748 if (op->pinfo != INSN_MACRO
1749 && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
1750 && (word & op->mask) == op->match)
1751 {
1752 /* We always disassemble the jalx instruction, except for MIPS r6. */
1753 if (!opcode_is_member (op, mips_isa, mips_ase, mips_processor)
1754 && (strcmp (op->name, "jalx")
1755 || (mips_isa & INSN_ISA_MASK) == ISA_MIPS32R6
1756 || (mips_isa & INSN_ISA_MASK) == ISA_MIPS64R6))
1757 continue;
1758
1759 /* Figure out instruction type and branch delay information. */
1760 if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
1761 {
1762 if ((op->pinfo & (INSN_WRITE_GPR_31 | INSN_WRITE_1)) != 0)
1763 info->insn_type = dis_jsr;
1764 else
1765 info->insn_type = dis_branch;
1766 info->branch_delay_insns = 1;
1767 }
1768 else if ((op->pinfo & (INSN_COND_BRANCH_DELAY
1769 | INSN_COND_BRANCH_LIKELY)) != 0)
1770 {
1771 if ((op->pinfo & INSN_WRITE_GPR_31) != 0)
1772 info->insn_type = dis_condjsr;
1773 else
1774 info->insn_type = dis_condbranch;
1775 info->branch_delay_insns = 1;
1776 }
1777 else if ((op->pinfo & (INSN_STORE_MEMORY
1778 | INSN_LOAD_MEMORY)) != 0)
1779 info->insn_type = dis_dref;
1780
1781 if (!validate_insn_args (op, decode_mips_operand, word))
1782 continue;
1783
1784 infprintf (is, "%s", op->name);
1785 if (op->pinfo2 & INSN2_VU0_CHANNEL_SUFFIX)
1786 {
1787 unsigned int uval;
1788
1789 infprintf (is, ".");
1790 uval = mips_extract_operand (&mips_vu0_channel_mask, word);
1791 print_vu0_channel (info, &mips_vu0_channel_mask, uval);
1792 }
1793
1794 if (op->args[0])
1795 {
1796 infprintf (is, "\t");
1797 print_insn_args (info, op, decode_mips_operand, word,
1798 memaddr, 4);
1799 }
1800
1801 return INSNLEN;
1802 }
1803 }
1804 }
1805 #undef GET_OP
1806
1807 /* Handle undefined instructions. */
1808 info->insn_type = dis_noninsn;
1809 infprintf (is, "0x%x", word);
1810 return INSNLEN;
1811 }
1812 \f
1813 /* Disassemble an operand for a mips16 instruction. */
1814
1815 static void
1816 print_mips16_insn_arg (struct disassemble_info *info,
1817 struct mips_print_arg_state *state,
1818 const struct mips_opcode *opcode,
1819 char type, bfd_vma memaddr,
1820 unsigned insn, bfd_boolean use_extend,
1821 unsigned extend, bfd_boolean is_offset)
1822 {
1823 const fprintf_ftype infprintf = info->fprintf_func;
1824 void *is = info->stream;
1825 const struct mips_operand *operand, *ext_operand;
1826 unsigned short ext_size;
1827 unsigned int uval;
1828 bfd_vma baseaddr;
1829
1830 if (!use_extend)
1831 extend = 0;
1832
1833 switch (type)
1834 {
1835 case ',':
1836 case '(':
1837 case ')':
1838 infprintf (is, "%c", type);
1839 break;
1840
1841 default:
1842 operand = decode_mips16_operand (type, FALSE);
1843 if (!operand)
1844 {
1845 /* xgettext:c-format */
1846 infprintf (is, _("# internal error, undefined operand in `%s %s'"),
1847 opcode->name, opcode->args);
1848 return;
1849 }
1850
1851 if (operand->type == OP_SAVE_RESTORE_LIST)
1852 {
1853 /* Handle this case here because of the complex interaction
1854 with the EXTEND opcode. */
1855 unsigned int amask, nargs, nstatics, nsreg, smask, frame_size, i, j;
1856 const char *sep;
1857
1858 amask = extend & 0xf;
1859 if (amask == MIPS16_ALL_ARGS)
1860 {
1861 nargs = 4;
1862 nstatics = 0;
1863 }
1864 else if (amask == MIPS16_ALL_STATICS)
1865 {
1866 nargs = 0;
1867 nstatics = 4;
1868 }
1869 else
1870 {
1871 nargs = amask >> 2;
1872 nstatics = amask & 3;
1873 }
1874
1875 sep = "";
1876 if (nargs > 0)
1877 {
1878 infprintf (is, "%s", mips_gpr_names[4]);
1879 if (nargs > 1)
1880 infprintf (is, "-%s", mips_gpr_names[4 + nargs - 1]);
1881 sep = ",";
1882 }
1883
1884 frame_size = ((extend & 0xf0) | (insn & 0x0f)) * 8;
1885 if (frame_size == 0 && !use_extend)
1886 frame_size = 128;
1887 infprintf (is, "%s%d", sep, frame_size);
1888
1889 if (insn & 0x40) /* $ra */
1890 infprintf (is, ",%s", mips_gpr_names[31]);
1891
1892 nsreg = (extend >> 8) & 0x7;
1893 smask = 0;
1894 if (insn & 0x20) /* $s0 */
1895 smask |= 1 << 0;
1896 if (insn & 0x10) /* $s1 */
1897 smask |= 1 << 1;
1898 if (nsreg > 0) /* $s2-$s8 */
1899 smask |= ((1 << nsreg) - 1) << 2;
1900
1901 for (i = 0; i < 9; i++)
1902 if (smask & (1 << i))
1903 {
1904 infprintf (is, ",%s", mips_gpr_names[i == 8 ? 30 : (16 + i)]);
1905 /* Skip over string of set bits. */
1906 for (j = i; smask & (2 << j); j++)
1907 continue;
1908 if (j > i)
1909 infprintf (is, "-%s", mips_gpr_names[j == 8 ? 30 : (16 + j)]);
1910 i = j + 1;
1911 }
1912 /* Statics $ax - $a3. */
1913 if (nstatics == 1)
1914 infprintf (is, ",%s", mips_gpr_names[7]);
1915 else if (nstatics > 0)
1916 infprintf (is, ",%s-%s",
1917 mips_gpr_names[7 - nstatics + 1],
1918 mips_gpr_names[7]);
1919 break;
1920 }
1921
1922 if (is_offset && operand->type == OP_INT)
1923 {
1924 const struct mips_int_operand *int_op;
1925
1926 int_op = (const struct mips_int_operand *) operand;
1927 info->insn_type = dis_dref;
1928 info->data_size = 1 << int_op->shift;
1929 }
1930
1931 ext_size = 0;
1932 if (use_extend)
1933 {
1934 ext_operand = decode_mips16_operand (type, TRUE);
1935 if (ext_operand != operand)
1936 {
1937 ext_size = ext_operand->size;
1938 operand = ext_operand;
1939 }
1940 }
1941 if (operand->size == 26)
1942 uval = ((extend & 0x1f) << 21) | ((extend & 0x3e0) << 11) | insn;
1943 else if (ext_size == 16)
1944 uval = ((extend & 0x1f) << 11) | (extend & 0x7e0) | (insn & 0x1f);
1945 else if (ext_size == 15)
1946 uval = ((extend & 0xf) << 11) | (extend & 0x7f0) | (insn & 0xf);
1947 else if (ext_size == 6)
1948 uval = ((extend >> 6) & 0x1f) | (extend & 0x20);
1949 else
1950 uval = mips_extract_operand (operand, (extend << 16) | insn);
1951
1952 baseaddr = memaddr + 2;
1953 if (operand->type == OP_PCREL)
1954 {
1955 const struct mips_pcrel_operand *pcrel_op;
1956
1957 pcrel_op = (const struct mips_pcrel_operand *) operand;
1958 if (!pcrel_op->include_isa_bit && use_extend)
1959 baseaddr = memaddr - 2;
1960 else if (!pcrel_op->include_isa_bit)
1961 {
1962 bfd_byte buffer[2];
1963
1964 /* If this instruction is in the delay slot of a JAL/JALX
1965 instruction, the base address is the address of the
1966 JAL/JALX instruction. If it is in the delay slot of
1967 a JR/JALR instruction, the base address is the address
1968 of the JR/JALR instruction. This test is unreliable:
1969 we have no way of knowing whether the previous word is
1970 instruction or data. */
1971 if (info->read_memory_func (memaddr - 4, buffer, 2, info) == 0
1972 && (((info->endian == BFD_ENDIAN_BIG
1973 ? bfd_getb16 (buffer)
1974 : bfd_getl16 (buffer))
1975 & 0xf800) == 0x1800))
1976 baseaddr = memaddr - 4;
1977 else if (info->read_memory_func (memaddr - 2, buffer, 2,
1978 info) == 0
1979 && (((info->endian == BFD_ENDIAN_BIG
1980 ? bfd_getb16 (buffer)
1981 : bfd_getl16 (buffer))
1982 & 0xf89f) == 0xe800)
1983 && (((info->endian == BFD_ENDIAN_BIG
1984 ? bfd_getb16 (buffer)
1985 : bfd_getl16 (buffer))
1986 & 0x0060) != 0x0060))
1987 baseaddr = memaddr - 2;
1988 else
1989 baseaddr = memaddr;
1990 }
1991 }
1992
1993 print_insn_arg (info, state, opcode, operand, baseaddr + 1, uval);
1994 break;
1995 }
1996 }
1997
1998
1999 /* Check if the given address is the last word of a MIPS16 PLT entry.
2000 This word is data and depending on the value it may interfere with
2001 disassembly of further PLT entries. We make use of the fact PLT
2002 symbols are marked BSF_SYNTHETIC. */
2003 static bfd_boolean
2004 is_mips16_plt_tail (struct disassemble_info *info, bfd_vma addr)
2005 {
2006 if (info->symbols
2007 && info->symbols[0]
2008 && (info->symbols[0]->flags & BSF_SYNTHETIC)
2009 && addr == bfd_asymbol_value (info->symbols[0]) + 12)
2010 return TRUE;
2011
2012 return FALSE;
2013 }
2014
2015 /* Whether none, a 32-bit or a 16-bit instruction match has been done. */
2016
2017 enum match_kind
2018 {
2019 MATCH_NONE,
2020 MATCH_FULL,
2021 MATCH_SHORT
2022 };
2023
2024 /* Disassemble mips16 instructions. */
2025
2026 static int
2027 print_insn_mips16 (bfd_vma memaddr, struct disassemble_info *info)
2028 {
2029 const fprintf_ftype infprintf = info->fprintf_func;
2030 int status;
2031 bfd_byte buffer[4];
2032 const struct mips_opcode *op, *opend;
2033 struct mips_print_arg_state state;
2034 void *is = info->stream;
2035 bfd_boolean have_second;
2036 unsigned int second;
2037 unsigned int first;
2038 unsigned int full;
2039
2040 info->bytes_per_chunk = 2;
2041 info->display_endian = info->endian;
2042 info->insn_info_valid = 1;
2043 info->branch_delay_insns = 0;
2044 info->data_size = 0;
2045 info->target = 0;
2046 info->target2 = 0;
2047
2048 #define GET_OP(insn, field) \
2049 (((insn) >> MIPS16OP_SH_##field) & MIPS16OP_MASK_##field)
2050 /* Decode PLT entry's GOT slot address word. */
2051 if (is_mips16_plt_tail (info, memaddr))
2052 {
2053 info->insn_type = dis_noninsn;
2054 status = (*info->read_memory_func) (memaddr, buffer, 4, info);
2055 if (status == 0)
2056 {
2057 unsigned int gotslot;
2058
2059 if (info->endian == BFD_ENDIAN_BIG)
2060 gotslot = bfd_getb32 (buffer);
2061 else
2062 gotslot = bfd_getl32 (buffer);
2063 infprintf (is, ".word\t0x%x", gotslot);
2064
2065 return 4;
2066 }
2067 }
2068 else
2069 {
2070 info->insn_type = dis_nonbranch;
2071 status = (*info->read_memory_func) (memaddr, buffer, 2, info);
2072 }
2073 if (status != 0)
2074 {
2075 (*info->memory_error_func) (status, memaddr, info);
2076 return -1;
2077 }
2078
2079 if (info->endian == BFD_ENDIAN_BIG)
2080 first = bfd_getb16 (buffer);
2081 else
2082 first = bfd_getl16 (buffer);
2083
2084 status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info);
2085 if (status == 0)
2086 {
2087 have_second = TRUE;
2088 if (info->endian == BFD_ENDIAN_BIG)
2089 second = bfd_getb16 (buffer);
2090 else
2091 second = bfd_getl16 (buffer);
2092 full = (first << 16) | second;
2093 }
2094 else
2095 {
2096 have_second = FALSE;
2097 second = 0;
2098 full = first;
2099 }
2100
2101 /* FIXME: Should probably use a hash table on the major opcode here. */
2102
2103 opend = mips16_opcodes + bfd_mips16_num_opcodes;
2104 for (op = mips16_opcodes; op < opend; op++)
2105 {
2106 enum match_kind match;
2107
2108 if (!opcode_is_member (op, mips_isa, mips_ase, mips_processor))
2109 continue;
2110
2111 if (op->pinfo == INSN_MACRO
2112 || (no_aliases && (op->pinfo2 & INSN2_ALIAS)))
2113 match = MATCH_NONE;
2114 else if (mips_opcode_32bit_p (op))
2115 {
2116 if (have_second
2117 && (full & op->mask) == op->match)
2118 match = MATCH_FULL;
2119 else
2120 match = MATCH_NONE;
2121 }
2122 else if ((first & op->mask) == op->match)
2123 {
2124 match = MATCH_SHORT;
2125 second = 0;
2126 full = first;
2127 }
2128 else if ((first & 0xf800) == 0xf000
2129 && have_second
2130 && !(op->pinfo2 & INSN2_SHORT_ONLY)
2131 && (second & op->mask) == op->match)
2132 match = MATCH_FULL;
2133 else
2134 match = MATCH_NONE;
2135
2136 if (match != MATCH_NONE)
2137 {
2138 const char *s;
2139
2140 infprintf (is, "%s", op->name);
2141 if (op->args[0] != '\0')
2142 infprintf (is, "\t");
2143
2144 init_print_arg_state (&state);
2145 for (s = op->args; *s != '\0'; s++)
2146 {
2147 if (*s == ','
2148 && s[1] == 'w'
2149 && GET_OP (full, RX) == GET_OP (full, RY))
2150 {
2151 /* Skip the register and the comma. */
2152 ++s;
2153 continue;
2154 }
2155 if (*s == ','
2156 && s[1] == 'v'
2157 && GET_OP (full, RZ) == GET_OP (full, RX))
2158 {
2159 /* Skip the register and the comma. */
2160 ++s;
2161 continue;
2162 }
2163 switch (match)
2164 {
2165 case MATCH_FULL:
2166 print_mips16_insn_arg (info, &state, op, *s, memaddr + 2,
2167 second, TRUE, first, s[1] == '(');
2168 break;
2169 case MATCH_SHORT:
2170 print_mips16_insn_arg (info, &state, op, *s, memaddr,
2171 first, FALSE, 0, s[1] == '(');
2172 break;
2173 case MATCH_NONE: /* Stop the compiler complaining. */
2174 break;
2175 }
2176 }
2177
2178 /* Figure out branch instruction type and delay slot information. */
2179 if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
2180 info->branch_delay_insns = 1;
2181 if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0
2182 || (op->pinfo2 & INSN2_UNCOND_BRANCH) != 0)
2183 {
2184 if ((op->pinfo & INSN_WRITE_GPR_31) != 0)
2185 info->insn_type = dis_jsr;
2186 else
2187 info->insn_type = dis_branch;
2188 }
2189 else if ((op->pinfo2 & INSN2_COND_BRANCH) != 0)
2190 info->insn_type = dis_condbranch;
2191
2192 return match == MATCH_FULL ? 4 : 2;
2193 }
2194 }
2195 #undef GET_OP
2196
2197 infprintf (is, "0x%x", first);
2198 info->insn_type = dis_noninsn;
2199
2200 return 2;
2201 }
2202
2203 /* Disassemble microMIPS instructions. */
2204
2205 static int
2206 print_insn_micromips (bfd_vma memaddr, struct disassemble_info *info)
2207 {
2208 const fprintf_ftype infprintf = info->fprintf_func;
2209 const struct mips_opcode *op, *opend;
2210 void *is = info->stream;
2211 bfd_byte buffer[2];
2212 unsigned int higher;
2213 unsigned int length;
2214 int status;
2215 unsigned int insn;
2216
2217 info->bytes_per_chunk = 2;
2218 info->display_endian = info->endian;
2219 info->insn_info_valid = 1;
2220 info->branch_delay_insns = 0;
2221 info->data_size = 0;
2222 info->insn_type = dis_nonbranch;
2223 info->target = 0;
2224 info->target2 = 0;
2225
2226 status = (*info->read_memory_func) (memaddr, buffer, 2, info);
2227 if (status != 0)
2228 {
2229 (*info->memory_error_func) (status, memaddr, info);
2230 return -1;
2231 }
2232
2233 length = 2;
2234
2235 if (info->endian == BFD_ENDIAN_BIG)
2236 insn = bfd_getb16 (buffer);
2237 else
2238 insn = bfd_getl16 (buffer);
2239
2240 if ((insn & 0x1c00) == 0x0000 || (insn & 0x1000) == 0x1000)
2241 {
2242 /* This is a 32-bit microMIPS instruction. */
2243 higher = insn;
2244
2245 status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info);
2246 if (status != 0)
2247 {
2248 infprintf (is, "micromips 0x%x", higher);
2249 (*info->memory_error_func) (status, memaddr + 2, info);
2250 return -1;
2251 }
2252
2253 if (info->endian == BFD_ENDIAN_BIG)
2254 insn = bfd_getb16 (buffer);
2255 else
2256 insn = bfd_getl16 (buffer);
2257
2258 insn = insn | (higher << 16);
2259
2260 length += 2;
2261 }
2262
2263 /* FIXME: Should probably use a hash table on the major opcode here. */
2264
2265 opend = micromips_opcodes + bfd_micromips_num_opcodes;
2266 for (op = micromips_opcodes; op < opend; op++)
2267 {
2268 if (op->pinfo != INSN_MACRO
2269 && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
2270 && (insn & op->mask) == op->match
2271 && ((length == 2 && (op->mask & 0xffff0000) == 0)
2272 || (length == 4 && (op->mask & 0xffff0000) != 0)))
2273 {
2274 if (!validate_insn_args (op, decode_micromips_operand, insn))
2275 continue;
2276
2277 infprintf (is, "%s", op->name);
2278
2279 if (op->args[0])
2280 {
2281 infprintf (is, "\t");
2282 print_insn_args (info, op, decode_micromips_operand, insn,
2283 memaddr + 1, length);
2284 }
2285
2286 /* Figure out instruction type and branch delay information. */
2287 if ((op->pinfo
2288 & (INSN_UNCOND_BRANCH_DELAY | INSN_COND_BRANCH_DELAY)) != 0)
2289 info->branch_delay_insns = 1;
2290 if (((op->pinfo & INSN_UNCOND_BRANCH_DELAY)
2291 | (op->pinfo2 & INSN2_UNCOND_BRANCH)) != 0)
2292 {
2293 if ((op->pinfo & (INSN_WRITE_GPR_31 | INSN_WRITE_1)) != 0)
2294 info->insn_type = dis_jsr;
2295 else
2296 info->insn_type = dis_branch;
2297 }
2298 else if (((op->pinfo & INSN_COND_BRANCH_DELAY)
2299 | (op->pinfo2 & INSN2_COND_BRANCH)) != 0)
2300 {
2301 if ((op->pinfo & INSN_WRITE_GPR_31) != 0)
2302 info->insn_type = dis_condjsr;
2303 else
2304 info->insn_type = dis_condbranch;
2305 }
2306 else if ((op->pinfo
2307 & (INSN_STORE_MEMORY | INSN_LOAD_MEMORY)) != 0)
2308 info->insn_type = dis_dref;
2309
2310 return length;
2311 }
2312 }
2313
2314 infprintf (is, "0x%x", insn);
2315 info->insn_type = dis_noninsn;
2316
2317 return length;
2318 }
2319
2320 /* Return 1 if a symbol associated with the location being disassembled
2321 indicates a compressed mode, either MIPS16 or microMIPS, according to
2322 MICROMIPS_P. We iterate over all the symbols at the address being
2323 considered assuming if at least one of them indicates code compression,
2324 then such code has been genuinely produced here (other symbols could
2325 have been derived from function symbols defined elsewhere or could
2326 define data). Otherwise, return 0. */
2327
2328 static bfd_boolean
2329 is_compressed_mode_p (struct disassemble_info *info, bfd_boolean micromips_p)
2330 {
2331 int i;
2332 int l;
2333
2334 for (i = info->symtab_pos, l = i + info->num_symbols; i < l; i++)
2335 if (((info->symtab[i])->flags & BSF_SYNTHETIC) != 0
2336 && ((!micromips_p
2337 && ELF_ST_IS_MIPS16 ((*info->symbols)->udata.i))
2338 || (micromips_p
2339 && ELF_ST_IS_MICROMIPS ((*info->symbols)->udata.i))))
2340 return 1;
2341 else if (bfd_asymbol_flavour (info->symtab[i]) == bfd_target_elf_flavour
2342 && info->symtab[i]->section == info->section)
2343 {
2344 elf_symbol_type *symbol = (elf_symbol_type *) info->symtab[i];
2345 if ((!micromips_p
2346 && ELF_ST_IS_MIPS16 (symbol->internal_elf_sym.st_other))
2347 || (micromips_p
2348 && ELF_ST_IS_MICROMIPS (symbol->internal_elf_sym.st_other)))
2349 return 1;
2350 }
2351
2352 return 0;
2353 }
2354
2355 /* In an environment where we do not know the symbol type of the
2356 instruction we are forced to assume that the low order bit of the
2357 instructions' address may mark it as a mips16 instruction. If we
2358 are single stepping, or the pc is within the disassembled function,
2359 this works. Otherwise, we need a clue. Sometimes. */
2360
2361 static int
2362 _print_insn_mips (bfd_vma memaddr,
2363 struct disassemble_info *info,
2364 enum bfd_endian endianness)
2365 {
2366 bfd_byte buffer[INSNLEN];
2367 int status;
2368
2369 set_default_mips_dis_options (info);
2370 parse_mips_dis_options (info->disassembler_options);
2371
2372 if (info->mach == bfd_mach_mips16)
2373 return print_insn_mips16 (memaddr, info);
2374 if (info->mach == bfd_mach_mips_micromips)
2375 return print_insn_micromips (memaddr, info);
2376
2377 #if 1
2378 /* FIXME: If odd address, this is CLEARLY a compressed instruction. */
2379 /* Only a few tools will work this way. */
2380 if (memaddr & 0x01)
2381 {
2382 if (micromips_ase)
2383 return print_insn_micromips (memaddr, info);
2384 else
2385 return print_insn_mips16 (memaddr, info);
2386 }
2387 #endif
2388
2389 #if SYMTAB_AVAILABLE
2390 if (is_compressed_mode_p (info, TRUE))
2391 return print_insn_micromips (memaddr, info);
2392 if (is_compressed_mode_p (info, FALSE))
2393 return print_insn_mips16 (memaddr, info);
2394 #endif
2395
2396 status = (*info->read_memory_func) (memaddr, buffer, INSNLEN, info);
2397 if (status == 0)
2398 {
2399 int insn;
2400
2401 if (endianness == BFD_ENDIAN_BIG)
2402 insn = bfd_getb32 (buffer);
2403 else
2404 insn = bfd_getl32 (buffer);
2405
2406 return print_insn_mips (memaddr, insn, info);
2407 }
2408 else
2409 {
2410 (*info->memory_error_func) (status, memaddr, info);
2411 return -1;
2412 }
2413 }
2414
2415 int
2416 print_insn_big_mips (bfd_vma memaddr, struct disassemble_info *info)
2417 {
2418 return _print_insn_mips (memaddr, info, BFD_ENDIAN_BIG);
2419 }
2420
2421 int
2422 print_insn_little_mips (bfd_vma memaddr, struct disassemble_info *info)
2423 {
2424 return _print_insn_mips (memaddr, info, BFD_ENDIAN_LITTLE);
2425 }
2426 \f
2427 void
2428 print_mips_disassembler_options (FILE *stream)
2429 {
2430 unsigned int i;
2431
2432 fprintf (stream, _("\n\
2433 The following MIPS specific disassembler options are supported for use\n\
2434 with the -M switch (multiple options should be separated by commas):\n"));
2435
2436 fprintf (stream, _("\n\
2437 no-aliases Use canonical instruction forms.\n"));
2438
2439 fprintf (stream, _("\n\
2440 msa Recognize MSA instructions.\n"));
2441
2442 fprintf (stream, _("\n\
2443 virt Recognize the virtualization ASE instructions.\n"));
2444
2445 fprintf (stream, _("\n\
2446 xpa Recognize the eXtended Physical Address (XPA)\n\
2447 ASE instructions.\n"));
2448
2449 fprintf (stream, _("\n\
2450 gpr-names=ABI Print GPR names according to specified ABI.\n\
2451 Default: based on binary being disassembled.\n"));
2452
2453 fprintf (stream, _("\n\
2454 fpr-names=ABI Print FPR names according to specified ABI.\n\
2455 Default: numeric.\n"));
2456
2457 fprintf (stream, _("\n\
2458 cp0-names=ARCH Print CP0 register names according to\n\
2459 specified architecture.\n\
2460 Default: based on binary being disassembled.\n"));
2461
2462 fprintf (stream, _("\n\
2463 hwr-names=ARCH Print HWR names according to specified \n\
2464 architecture.\n\
2465 Default: based on binary being disassembled.\n"));
2466
2467 fprintf (stream, _("\n\
2468 reg-names=ABI Print GPR and FPR names according to\n\
2469 specified ABI.\n"));
2470
2471 fprintf (stream, _("\n\
2472 reg-names=ARCH Print CP0 register and HWR names according to\n\
2473 specified architecture.\n"));
2474
2475 fprintf (stream, _("\n\
2476 For the options above, the following values are supported for \"ABI\":\n\
2477 "));
2478 for (i = 0; i < ARRAY_SIZE (mips_abi_choices); i++)
2479 fprintf (stream, " %s", mips_abi_choices[i].name);
2480 fprintf (stream, _("\n"));
2481
2482 fprintf (stream, _("\n\
2483 For the options above, The following values are supported for \"ARCH\":\n\
2484 "));
2485 for (i = 0; i < ARRAY_SIZE (mips_arch_choices); i++)
2486 if (*mips_arch_choices[i].name != '\0')
2487 fprintf (stream, " %s", mips_arch_choices[i].name);
2488 fprintf (stream, _("\n"));
2489
2490 fprintf (stream, _("\n"));
2491 }
A mirror of the official binutils-gdb repository