1 /* Print mips instructions for GDB, the GNU debugger, or for objdump.
2 Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2012
4 Free Software Foundation, Inc.
5 Contributed by Nobuyuki Hikichi(hikichi@sra.co.jp).
7 This file is part of the GNU opcodes library.
9 This library is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
14 It is distributed in the hope that it will be useful, but WITHOUT
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
17 License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
26 #include "libiberty.h"
27 #include "opcode/mips.h"
30 /* FIXME: These are needed to figure out if the code is mips16 or
31 not. The low bit of the address is often a good indicator. No
32 symbol table is available when this code runs out in an embedded
33 system as when it is used for disassembler support in a monitor. */
35 #if !defined(EMBEDDED_ENV)
36 #define SYMTAB_AVAILABLE 1
41 /* Mips instructions are at maximum this many bytes long. */
45 /* FIXME: These should be shared with gdb somehow. */
47 struct mips_cp0sel_name
51 const char * const name;
54 static const char * const mips_gpr_names_numeric[32] =
56 "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
57 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
58 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
59 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
62 static const char * const mips_gpr_names_oldabi[32] =
64 "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3",
65 "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7",
66 "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
67 "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra"
70 static const char * const mips_gpr_names_newabi[32] =
72 "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3",
73 "a4", "a5", "a6", "a7", "t0", "t1", "t2", "t3",
74 "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
75 "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra"
78 static const char * const mips_fpr_names_numeric[32] =
80 "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", "$f7",
81 "$f8", "$f9", "$f10", "$f11", "$f12", "$f13", "$f14", "$f15",
82 "$f16", "$f17", "$f18", "$f19", "$f20", "$f21", "$f22", "$f23",
83 "$f24", "$f25", "$f26", "$f27", "$f28", "$f29", "$f30", "$f31"
86 static const char * const mips_fpr_names_32[32] =
88 "fv0", "fv0f", "fv1", "fv1f", "ft0", "ft0f", "ft1", "ft1f",
89 "ft2", "ft2f", "ft3", "ft3f", "fa0", "fa0f", "fa1", "fa1f",
90 "ft4", "ft4f", "ft5", "ft5f", "fs0", "fs0f", "fs1", "fs1f",
91 "fs2", "fs2f", "fs3", "fs3f", "fs4", "fs4f", "fs5", "fs5f"
94 static const char * const mips_fpr_names_n32[32] =
96 "fv0", "ft14", "fv1", "ft15", "ft0", "ft1", "ft2", "ft3",
97 "ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3",
98 "fa4", "fa5", "fa6", "fa7", "fs0", "ft8", "fs1", "ft9",
99 "fs2", "ft10", "fs3", "ft11", "fs4", "ft12", "fs5", "ft13"
102 static const char * const mips_fpr_names_64[32] =
104 "fv0", "ft12", "fv1", "ft13", "ft0", "ft1", "ft2", "ft3",
105 "ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3",
106 "fa4", "fa5", "fa6", "fa7", "ft8", "ft9", "ft10", "ft11",
107 "fs0", "fs1", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7"
110 static const char * const mips_cp0_names_numeric[32] =
112 "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
113 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
114 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
115 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
118 static const char * const mips_cp0_names_r3000[32] =
120 "c0_index", "c0_random", "c0_entrylo", "$3",
121 "c0_context", "$5", "$6", "$7",
122 "c0_badvaddr", "$9", "c0_entryhi", "$11",
123 "c0_sr", "c0_cause", "c0_epc", "c0_prid",
124 "$16", "$17", "$18", "$19",
125 "$20", "$21", "$22", "$23",
126 "$24", "$25", "$26", "$27",
127 "$28", "$29", "$30", "$31",
130 static const char * const mips_cp0_names_r4000[32] =
132 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
133 "c0_context", "c0_pagemask", "c0_wired", "$7",
134 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
135 "c0_sr", "c0_cause", "c0_epc", "c0_prid",
136 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
137 "c0_xcontext", "$21", "$22", "$23",
138 "$24", "$25", "c0_ecc", "c0_cacheerr",
139 "c0_taglo", "c0_taghi", "c0_errorepc", "$31",
142 static const char * const mips_cp0_names_r5900[32] =
144 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
145 "c0_context", "c0_pagemask", "c0_wired", "$7",
146 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
147 "c0_sr", "c0_cause", "c0_epc", "c0_prid",
148 "c0_config", "$17", "$18", "$19",
149 "$20", "$21", "$22", "c0_badpaddr",
150 "c0_depc", "c0_perfcnt", "$26", "$27",
151 "c0_taglo", "c0_taghi", "c0_errorepc", "$31"
154 static const struct mips_cp0sel_name mips_cp0sel_names_mipsr5900[] =
157 { 24, 3, "c0_iabm" },
159 { 24, 5, "c0_dabm" },
161 { 24, 7, "c0_dvbm" },
162 { 25, 1, "c0_perfcnt,1" },
163 { 25, 2, "c0_perfcnt,2" }
166 static const char * const mips_cp0_names_mips3264[32] =
168 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
169 "c0_context", "c0_pagemask", "c0_wired", "$7",
170 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
171 "c0_status", "c0_cause", "c0_epc", "c0_prid",
172 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
173 "c0_xcontext", "$21", "$22", "c0_debug",
174 "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr",
175 "c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave",
178 static const struct mips_cp0sel_name mips_cp0sel_names_mips3264[] =
180 { 16, 1, "c0_config1" },
181 { 16, 2, "c0_config2" },
182 { 16, 3, "c0_config3" },
183 { 18, 1, "c0_watchlo,1" },
184 { 18, 2, "c0_watchlo,2" },
185 { 18, 3, "c0_watchlo,3" },
186 { 18, 4, "c0_watchlo,4" },
187 { 18, 5, "c0_watchlo,5" },
188 { 18, 6, "c0_watchlo,6" },
189 { 18, 7, "c0_watchlo,7" },
190 { 19, 1, "c0_watchhi,1" },
191 { 19, 2, "c0_watchhi,2" },
192 { 19, 3, "c0_watchhi,3" },
193 { 19, 4, "c0_watchhi,4" },
194 { 19, 5, "c0_watchhi,5" },
195 { 19, 6, "c0_watchhi,6" },
196 { 19, 7, "c0_watchhi,7" },
197 { 25, 1, "c0_perfcnt,1" },
198 { 25, 2, "c0_perfcnt,2" },
199 { 25, 3, "c0_perfcnt,3" },
200 { 25, 4, "c0_perfcnt,4" },
201 { 25, 5, "c0_perfcnt,5" },
202 { 25, 6, "c0_perfcnt,6" },
203 { 25, 7, "c0_perfcnt,7" },
204 { 27, 1, "c0_cacheerr,1" },
205 { 27, 2, "c0_cacheerr,2" },
206 { 27, 3, "c0_cacheerr,3" },
207 { 28, 1, "c0_datalo" },
208 { 29, 1, "c0_datahi" }
211 static const char * const mips_cp0_names_mips3264r2[32] =
213 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
214 "c0_context", "c0_pagemask", "c0_wired", "c0_hwrena",
215 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
216 "c0_status", "c0_cause", "c0_epc", "c0_prid",
217 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
218 "c0_xcontext", "$21", "$22", "c0_debug",
219 "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr",
220 "c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave",
223 static const struct mips_cp0sel_name mips_cp0sel_names_mips3264r2[] =
225 { 4, 1, "c0_contextconfig" },
226 { 0, 1, "c0_mvpcontrol" },
227 { 0, 2, "c0_mvpconf0" },
228 { 0, 3, "c0_mvpconf1" },
229 { 1, 1, "c0_vpecontrol" },
230 { 1, 2, "c0_vpeconf0" },
231 { 1, 3, "c0_vpeconf1" },
232 { 1, 4, "c0_yqmask" },
233 { 1, 5, "c0_vpeschedule" },
234 { 1, 6, "c0_vpeschefback" },
235 { 2, 1, "c0_tcstatus" },
236 { 2, 2, "c0_tcbind" },
237 { 2, 3, "c0_tcrestart" },
238 { 2, 4, "c0_tchalt" },
239 { 2, 5, "c0_tccontext" },
240 { 2, 6, "c0_tcschedule" },
241 { 2, 7, "c0_tcschefback" },
242 { 5, 1, "c0_pagegrain" },
243 { 6, 1, "c0_srsconf0" },
244 { 6, 2, "c0_srsconf1" },
245 { 6, 3, "c0_srsconf2" },
246 { 6, 4, "c0_srsconf3" },
247 { 6, 5, "c0_srsconf4" },
248 { 12, 1, "c0_intctl" },
249 { 12, 2, "c0_srsctl" },
250 { 12, 3, "c0_srsmap" },
251 { 15, 1, "c0_ebase" },
252 { 16, 1, "c0_config1" },
253 { 16, 2, "c0_config2" },
254 { 16, 3, "c0_config3" },
255 { 18, 1, "c0_watchlo,1" },
256 { 18, 2, "c0_watchlo,2" },
257 { 18, 3, "c0_watchlo,3" },
258 { 18, 4, "c0_watchlo,4" },
259 { 18, 5, "c0_watchlo,5" },
260 { 18, 6, "c0_watchlo,6" },
261 { 18, 7, "c0_watchlo,7" },
262 { 19, 1, "c0_watchhi,1" },
263 { 19, 2, "c0_watchhi,2" },
264 { 19, 3, "c0_watchhi,3" },
265 { 19, 4, "c0_watchhi,4" },
266 { 19, 5, "c0_watchhi,5" },
267 { 19, 6, "c0_watchhi,6" },
268 { 19, 7, "c0_watchhi,7" },
269 { 23, 1, "c0_tracecontrol" },
270 { 23, 2, "c0_tracecontrol2" },
271 { 23, 3, "c0_usertracedata" },
272 { 23, 4, "c0_tracebpc" },
273 { 25, 1, "c0_perfcnt,1" },
274 { 25, 2, "c0_perfcnt,2" },
275 { 25, 3, "c0_perfcnt,3" },
276 { 25, 4, "c0_perfcnt,4" },
277 { 25, 5, "c0_perfcnt,5" },
278 { 25, 6, "c0_perfcnt,6" },
279 { 25, 7, "c0_perfcnt,7" },
280 { 27, 1, "c0_cacheerr,1" },
281 { 27, 2, "c0_cacheerr,2" },
282 { 27, 3, "c0_cacheerr,3" },
283 { 28, 1, "c0_datalo" },
284 { 28, 2, "c0_taglo1" },
285 { 28, 3, "c0_datalo1" },
286 { 28, 4, "c0_taglo2" },
287 { 28, 5, "c0_datalo2" },
288 { 28, 6, "c0_taglo3" },
289 { 28, 7, "c0_datalo3" },
290 { 29, 1, "c0_datahi" },
291 { 29, 2, "c0_taghi1" },
292 { 29, 3, "c0_datahi1" },
293 { 29, 4, "c0_taghi2" },
294 { 29, 5, "c0_datahi2" },
295 { 29, 6, "c0_taghi3" },
296 { 29, 7, "c0_datahi3" },
299 /* SB-1: MIPS64 (mips_cp0_names_mips3264) with minor mods. */
300 static const char * const mips_cp0_names_sb1[32] =
302 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
303 "c0_context", "c0_pagemask", "c0_wired", "$7",
304 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
305 "c0_status", "c0_cause", "c0_epc", "c0_prid",
306 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
307 "c0_xcontext", "$21", "$22", "c0_debug",
308 "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr_i",
309 "c0_taglo_i", "c0_taghi_i", "c0_errorepc", "c0_desave",
312 static const struct mips_cp0sel_name mips_cp0sel_names_sb1[] =
314 { 16, 1, "c0_config1" },
315 { 18, 1, "c0_watchlo,1" },
316 { 19, 1, "c0_watchhi,1" },
317 { 22, 0, "c0_perftrace" },
318 { 23, 3, "c0_edebug" },
319 { 25, 1, "c0_perfcnt,1" },
320 { 25, 2, "c0_perfcnt,2" },
321 { 25, 3, "c0_perfcnt,3" },
322 { 25, 4, "c0_perfcnt,4" },
323 { 25, 5, "c0_perfcnt,5" },
324 { 25, 6, "c0_perfcnt,6" },
325 { 25, 7, "c0_perfcnt,7" },
326 { 26, 1, "c0_buserr_pa" },
327 { 27, 1, "c0_cacheerr_d" },
328 { 27, 3, "c0_cacheerr_d_pa" },
329 { 28, 1, "c0_datalo_i" },
330 { 28, 2, "c0_taglo_d" },
331 { 28, 3, "c0_datalo_d" },
332 { 29, 1, "c0_datahi_i" },
333 { 29, 2, "c0_taghi_d" },
334 { 29, 3, "c0_datahi_d" },
337 /* Xlr cop0 register names. */
338 static const char * const mips_cp0_names_xlr[32] = {
339 "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1",
340 "c0_context", "c0_pagemask", "c0_wired", "$7",
341 "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare",
342 "c0_status", "c0_cause", "c0_epc", "c0_prid",
343 "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi",
344 "c0_xcontext", "$21", "$22", "c0_debug",
345 "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr_i",
346 "c0_taglo_i", "c0_taghi_i", "c0_errorepc", "c0_desave",
349 /* XLR's CP0 Select Registers. */
351 static const struct mips_cp0sel_name mips_cp0sel_names_xlr[] = {
352 { 9, 6, "c0_extintreq" },
353 { 9, 7, "c0_extintmask" },
354 { 15, 1, "c0_ebase" },
355 { 16, 1, "c0_config1" },
356 { 16, 2, "c0_config2" },
357 { 16, 3, "c0_config3" },
358 { 16, 7, "c0_procid2" },
359 { 18, 1, "c0_watchlo,1" },
360 { 18, 2, "c0_watchlo,2" },
361 { 18, 3, "c0_watchlo,3" },
362 { 18, 4, "c0_watchlo,4" },
363 { 18, 5, "c0_watchlo,5" },
364 { 18, 6, "c0_watchlo,6" },
365 { 18, 7, "c0_watchlo,7" },
366 { 19, 1, "c0_watchhi,1" },
367 { 19, 2, "c0_watchhi,2" },
368 { 19, 3, "c0_watchhi,3" },
369 { 19, 4, "c0_watchhi,4" },
370 { 19, 5, "c0_watchhi,5" },
371 { 19, 6, "c0_watchhi,6" },
372 { 19, 7, "c0_watchhi,7" },
373 { 25, 1, "c0_perfcnt,1" },
374 { 25, 2, "c0_perfcnt,2" },
375 { 25, 3, "c0_perfcnt,3" },
376 { 25, 4, "c0_perfcnt,4" },
377 { 25, 5, "c0_perfcnt,5" },
378 { 25, 6, "c0_perfcnt,6" },
379 { 25, 7, "c0_perfcnt,7" },
380 { 27, 1, "c0_cacheerr,1" },
381 { 27, 2, "c0_cacheerr,2" },
382 { 27, 3, "c0_cacheerr,3" },
383 { 28, 1, "c0_datalo" },
384 { 29, 1, "c0_datahi" }
387 static const char * const mips_hwr_names_numeric[32] =
389 "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",
390 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
391 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
392 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
395 static const char * const mips_hwr_names_mips3264r2[32] =
397 "hwr_cpunum", "hwr_synci_step", "hwr_cc", "hwr_ccres",
398 "$4", "$5", "$6", "$7",
399 "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15",
400 "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23",
401 "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31"
404 struct mips_abi_choice
407 const char * const *gpr_names;
408 const char * const *fpr_names;
411 struct mips_abi_choice mips_abi_choices[] =
413 { "numeric", mips_gpr_names_numeric, mips_fpr_names_numeric },
414 { "32", mips_gpr_names_oldabi, mips_fpr_names_32 },
415 { "n32", mips_gpr_names_newabi, mips_fpr_names_n32 },
416 { "64", mips_gpr_names_newabi, mips_fpr_names_64 },
419 struct mips_arch_choice
423 unsigned long bfd_mach;
427 const char * const *cp0_names;
428 const struct mips_cp0sel_name *cp0sel_names;
429 unsigned int cp0sel_names_len;
430 const char * const *hwr_names;
433 const struct mips_arch_choice mips_arch_choices[] =
435 { "numeric", 0, 0, 0, 0, 0,
436 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
438 { "r3000", 1, bfd_mach_mips3000, CPU_R3000, ISA_MIPS1, 0,
439 mips_cp0_names_r3000, NULL, 0, mips_hwr_names_numeric },
440 { "r3900", 1, bfd_mach_mips3900, CPU_R3900, ISA_MIPS1, 0,
441 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
442 { "r4000", 1, bfd_mach_mips4000, CPU_R4000, ISA_MIPS3, 0,
443 mips_cp0_names_r4000, NULL, 0, mips_hwr_names_numeric },
444 { "r4010", 1, bfd_mach_mips4010, CPU_R4010, ISA_MIPS2, 0,
445 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
446 { "vr4100", 1, bfd_mach_mips4100, CPU_VR4100, ISA_MIPS3, 0,
447 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
448 { "vr4111", 1, bfd_mach_mips4111, CPU_R4111, ISA_MIPS3, 0,
449 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
450 { "vr4120", 1, bfd_mach_mips4120, CPU_VR4120, ISA_MIPS3, 0,
451 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
452 { "r4300", 1, bfd_mach_mips4300, CPU_R4300, ISA_MIPS3, 0,
453 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
454 { "r4400", 1, bfd_mach_mips4400, CPU_R4400, ISA_MIPS3, 0,
455 mips_cp0_names_r4000, NULL, 0, mips_hwr_names_numeric },
456 { "r4600", 1, bfd_mach_mips4600, CPU_R4600, ISA_MIPS3, 0,
457 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
458 { "r4650", 1, bfd_mach_mips4650, CPU_R4650, ISA_MIPS3, 0,
459 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
460 { "r5000", 1, bfd_mach_mips5000, CPU_R5000, ISA_MIPS4, 0,
461 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
462 { "vr5400", 1, bfd_mach_mips5400, CPU_VR5400, ISA_MIPS4, 0,
463 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
464 { "vr5500", 1, bfd_mach_mips5500, CPU_VR5500, ISA_MIPS4, 0,
465 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
466 { "r5900", 1, bfd_mach_mips5900, CPU_R5900, ISA_MIPS3, 0,
467 mips_cp0_names_r5900, NULL, 0, mips_hwr_names_numeric },
468 { "r6000", 1, bfd_mach_mips6000, CPU_R6000, ISA_MIPS2, 0,
469 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
470 { "rm7000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4, 0,
471 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
472 { "rm9000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4, 0,
473 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
474 { "r8000", 1, bfd_mach_mips8000, CPU_R8000, ISA_MIPS4, 0,
475 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
476 { "r10000", 1, bfd_mach_mips10000, CPU_R10000, ISA_MIPS4, 0,
477 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
478 { "r12000", 1, bfd_mach_mips12000, CPU_R12000, ISA_MIPS4, 0,
479 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
480 { "r14000", 1, bfd_mach_mips14000, CPU_R14000, ISA_MIPS4, 0,
481 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
482 { "r16000", 1, bfd_mach_mips16000, CPU_R16000, ISA_MIPS4, 0,
483 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
484 { "mips5", 1, bfd_mach_mips5, CPU_MIPS5, ISA_MIPS5, 0,
485 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
487 /* For stock MIPS32, disassemble all applicable MIPS-specified ASEs.
488 Note that MIPS-3D and MDMX are not applicable to MIPS32. (See
489 _MIPS32 Architecture For Programmers Volume I: Introduction to the
490 MIPS32 Architecture_ (MIPS Document Number MD00082, Revision 0.95),
492 { "mips32", 1, bfd_mach_mipsisa32, CPU_MIPS32,
493 ISA_MIPS32, ASE_SMARTMIPS,
494 mips_cp0_names_mips3264,
495 mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
496 mips_hwr_names_numeric },
498 { "mips32r2", 1, bfd_mach_mipsisa32r2, CPU_MIPS32R2,
500 (ASE_SMARTMIPS | ASE_DSP | ASE_DSPR2 | ASE_EVA | ASE_MIPS3D
501 | ASE_MT | ASE_MCU | ASE_VIRT),
502 mips_cp0_names_mips3264r2,
503 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
504 mips_hwr_names_mips3264r2 },
506 /* For stock MIPS64, disassemble all applicable MIPS-specified ASEs. */
507 { "mips64", 1, bfd_mach_mipsisa64, CPU_MIPS64,
508 ISA_MIPS64, ASE_MIPS3D | ASE_MDMX,
509 mips_cp0_names_mips3264,
510 mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264),
511 mips_hwr_names_numeric },
513 { "mips64r2", 1, bfd_mach_mipsisa64r2, CPU_MIPS64R2,
515 (ASE_MIPS3D | ASE_DSP | ASE_DSPR2 | ASE_DSP64 | ASE_EVA | ASE_MT
516 | ASE_MDMX | ASE_MCU | ASE_VIRT | ASE_VIRT64),
517 mips_cp0_names_mips3264r2,
518 mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2),
519 mips_hwr_names_mips3264r2 },
521 { "sb1", 1, bfd_mach_mips_sb1, CPU_SB1,
522 ISA_MIPS64 | INSN_SB1, ASE_MIPS3D,
524 mips_cp0sel_names_sb1, ARRAY_SIZE (mips_cp0sel_names_sb1),
525 mips_hwr_names_numeric },
527 { "loongson2e", 1, bfd_mach_mips_loongson_2e, CPU_LOONGSON_2E,
528 ISA_MIPS3 | INSN_LOONGSON_2E, 0, mips_cp0_names_numeric,
529 NULL, 0, mips_hwr_names_numeric },
531 { "loongson2f", 1, bfd_mach_mips_loongson_2f, CPU_LOONGSON_2F,
532 ISA_MIPS3 | INSN_LOONGSON_2F, 0, mips_cp0_names_numeric,
533 NULL, 0, mips_hwr_names_numeric },
535 { "loongson3a", 1, bfd_mach_mips_loongson_3a, CPU_LOONGSON_3A,
536 ISA_MIPS64 | INSN_LOONGSON_3A, 0, mips_cp0_names_numeric,
537 NULL, 0, mips_hwr_names_numeric },
539 { "octeon", 1, bfd_mach_mips_octeon, CPU_OCTEON,
540 ISA_MIPS64R2 | INSN_OCTEON, 0, mips_cp0_names_numeric, NULL, 0,
541 mips_hwr_names_numeric },
543 { "octeon+", 1, bfd_mach_mips_octeonp, CPU_OCTEONP,
544 ISA_MIPS64R2 | INSN_OCTEONP, 0, mips_cp0_names_numeric,
545 NULL, 0, mips_hwr_names_numeric },
547 { "octeon2", 1, bfd_mach_mips_octeon2, CPU_OCTEON2,
548 ISA_MIPS64R2 | INSN_OCTEON2, 0, mips_cp0_names_numeric,
549 NULL, 0, mips_hwr_names_numeric },
551 { "xlr", 1, bfd_mach_mips_xlr, CPU_XLR,
552 ISA_MIPS64 | INSN_XLR, 0,
554 mips_cp0sel_names_xlr, ARRAY_SIZE (mips_cp0sel_names_xlr),
555 mips_hwr_names_numeric },
557 /* XLP is mostly like XLR, with the prominent exception it is being
559 { "xlp", 1, bfd_mach_mips_xlr, CPU_XLR,
560 ISA_MIPS64R2 | INSN_XLR, 0,
562 mips_cp0sel_names_xlr, ARRAY_SIZE (mips_cp0sel_names_xlr),
563 mips_hwr_names_numeric },
565 /* This entry, mips16, is here only for ISA/processor selection; do
566 not print its name. */
567 { "", 1, bfd_mach_mips16, CPU_MIPS16, ISA_MIPS3, 0,
568 mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric },
571 /* ISA and processor type to disassemble for, and register names to use.
572 set_default_mips_dis_options and parse_mips_dis_options fill in these
574 static int mips_processor;
577 static int micromips_ase;
578 static const char * const *mips_gpr_names;
579 static const char * const *mips_fpr_names;
580 static const char * const *mips_cp0_names;
581 static const struct mips_cp0sel_name *mips_cp0sel_names;
582 static int mips_cp0sel_names_len;
583 static const char * const *mips_hwr_names;
586 static int no_aliases; /* If set disassemble as most general inst. */
588 static const struct mips_abi_choice *
589 choose_abi_by_name (const char *name, unsigned int namelen)
591 const struct mips_abi_choice *c;
594 for (i = 0, c = NULL; i < ARRAY_SIZE (mips_abi_choices) && c == NULL; i++)
595 if (strncmp (mips_abi_choices[i].name, name, namelen) == 0
596 && strlen (mips_abi_choices[i].name) == namelen)
597 c = &mips_abi_choices[i];
602 static const struct mips_arch_choice *
603 choose_arch_by_name (const char *name, unsigned int namelen)
605 const struct mips_arch_choice *c = NULL;
608 for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++)
609 if (strncmp (mips_arch_choices[i].name, name, namelen) == 0
610 && strlen (mips_arch_choices[i].name) == namelen)
611 c = &mips_arch_choices[i];
616 static const struct mips_arch_choice *
617 choose_arch_by_number (unsigned long mach)
619 static unsigned long hint_bfd_mach;
620 static const struct mips_arch_choice *hint_arch_choice;
621 const struct mips_arch_choice *c;
624 /* We optimize this because even if the user specifies no
625 flags, this will be done for every instruction! */
626 if (hint_bfd_mach == mach
627 && hint_arch_choice != NULL
628 && hint_arch_choice->bfd_mach == hint_bfd_mach)
629 return hint_arch_choice;
631 for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++)
633 if (mips_arch_choices[i].bfd_mach_valid
634 && mips_arch_choices[i].bfd_mach == mach)
636 c = &mips_arch_choices[i];
637 hint_bfd_mach = mach;
638 hint_arch_choice = c;
644 /* Check if the object uses NewABI conventions. */
647 is_newabi (Elf_Internal_Ehdr *header)
649 /* There are no old-style ABIs which use 64-bit ELF. */
650 if (header->e_ident[EI_CLASS] == ELFCLASS64)
653 /* If a 32-bit ELF file, n32 is a new-style ABI. */
654 if ((header->e_flags & EF_MIPS_ABI2) != 0)
660 /* Check if the object has microMIPS ASE code. */
663 is_micromips (Elf_Internal_Ehdr *header)
665 if ((header->e_flags & EF_MIPS_ARCH_ASE_MICROMIPS) != 0)
672 set_default_mips_dis_options (struct disassemble_info *info)
674 const struct mips_arch_choice *chosen_arch;
676 /* Defaults: mipsIII/r3000 (?!), no microMIPS ASE (any compressed code
677 is MIPS16 ASE) (o)32-style ("oldabi") GPR names, and numeric FPR,
678 CP0 register, and HWR names. */
679 mips_isa = ISA_MIPS3;
680 mips_processor = CPU_R3000;
683 mips_gpr_names = mips_gpr_names_oldabi;
684 mips_fpr_names = mips_fpr_names_numeric;
685 mips_cp0_names = mips_cp0_names_numeric;
686 mips_cp0sel_names = NULL;
687 mips_cp0sel_names_len = 0;
688 mips_hwr_names = mips_hwr_names_numeric;
691 /* Update settings according to the ELF file header flags. */
692 if (info->flavour == bfd_target_elf_flavour && info->section != NULL)
694 Elf_Internal_Ehdr *header;
696 header = elf_elfheader (info->section->owner);
697 /* If an ELF "newabi" binary, use the n32/(n)64 GPR names. */
698 if (is_newabi (header))
699 mips_gpr_names = mips_gpr_names_newabi;
700 /* If a microMIPS binary, then don't use MIPS16 bindings. */
701 micromips_ase = is_micromips (header);
704 /* Set ISA, architecture, and cp0 register names as best we can. */
705 #if ! SYMTAB_AVAILABLE
706 /* This is running out on a target machine, not in a host tool.
707 FIXME: Where does mips_target_info come from? */
708 target_processor = mips_target_info.processor;
709 mips_isa = mips_target_info.isa;
710 mips_ase = mips_target_info.ase;
712 chosen_arch = choose_arch_by_number (info->mach);
713 if (chosen_arch != NULL)
715 mips_processor = chosen_arch->processor;
716 mips_isa = chosen_arch->isa;
717 mips_ase = chosen_arch->ase;
718 mips_cp0_names = chosen_arch->cp0_names;
719 mips_cp0sel_names = chosen_arch->cp0sel_names;
720 mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
721 mips_hwr_names = chosen_arch->hwr_names;
727 parse_mips_dis_option (const char *option, unsigned int len)
729 unsigned int i, optionlen, vallen;
731 const struct mips_abi_choice *chosen_abi;
732 const struct mips_arch_choice *chosen_arch;
734 /* Try to match options that are simple flags */
735 if (CONST_STRNEQ (option, "no-aliases"))
741 if (CONST_STRNEQ (option, "virt"))
743 mips_ase |= ASE_VIRT;
744 if (mips_isa & ISA_MIPS64R2)
745 mips_ase |= ASE_VIRT64;
749 /* Look for the = that delimits the end of the option name. */
750 for (i = 0; i < len; i++)
751 if (option[i] == '=')
754 if (i == 0) /* Invalid option: no name before '='. */
756 if (i == len) /* Invalid option: no '='. */
758 if (i == (len - 1)) /* Invalid option: no value after '='. */
762 val = option + (optionlen + 1);
763 vallen = len - (optionlen + 1);
765 if (strncmp ("gpr-names", option, optionlen) == 0
766 && strlen ("gpr-names") == optionlen)
768 chosen_abi = choose_abi_by_name (val, vallen);
769 if (chosen_abi != NULL)
770 mips_gpr_names = chosen_abi->gpr_names;
774 if (strncmp ("fpr-names", option, optionlen) == 0
775 && strlen ("fpr-names") == optionlen)
777 chosen_abi = choose_abi_by_name (val, vallen);
778 if (chosen_abi != NULL)
779 mips_fpr_names = chosen_abi->fpr_names;
783 if (strncmp ("cp0-names", option, optionlen) == 0
784 && strlen ("cp0-names") == optionlen)
786 chosen_arch = choose_arch_by_name (val, vallen);
787 if (chosen_arch != NULL)
789 mips_cp0_names = chosen_arch->cp0_names;
790 mips_cp0sel_names = chosen_arch->cp0sel_names;
791 mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
796 if (strncmp ("hwr-names", option, optionlen) == 0
797 && strlen ("hwr-names") == optionlen)
799 chosen_arch = choose_arch_by_name (val, vallen);
800 if (chosen_arch != NULL)
801 mips_hwr_names = chosen_arch->hwr_names;
805 if (strncmp ("reg-names", option, optionlen) == 0
806 && strlen ("reg-names") == optionlen)
808 /* We check both ABI and ARCH here unconditionally, so
809 that "numeric" will do the desirable thing: select
810 numeric register names for all registers. Other than
811 that, a given name probably won't match both. */
812 chosen_abi = choose_abi_by_name (val, vallen);
813 if (chosen_abi != NULL)
815 mips_gpr_names = chosen_abi->gpr_names;
816 mips_fpr_names = chosen_abi->fpr_names;
818 chosen_arch = choose_arch_by_name (val, vallen);
819 if (chosen_arch != NULL)
821 mips_cp0_names = chosen_arch->cp0_names;
822 mips_cp0sel_names = chosen_arch->cp0sel_names;
823 mips_cp0sel_names_len = chosen_arch->cp0sel_names_len;
824 mips_hwr_names = chosen_arch->hwr_names;
829 /* Invalid option. */
833 parse_mips_dis_options (const char *options)
835 const char *option_end;
840 while (*options != '\0')
842 /* Skip empty options. */
849 /* We know that *options is neither NUL or a comma. */
850 option_end = options + 1;
851 while (*option_end != ',' && *option_end != '\0')
854 parse_mips_dis_option (options, option_end - options);
856 /* Go on to the next one. If option_end points to a comma, it
857 will be skipped above. */
858 options = option_end;
862 static const struct mips_cp0sel_name *
863 lookup_mips_cp0sel_name (const struct mips_cp0sel_name *names,
870 for (i = 0; i < len; i++)
871 if (names[i].cp0reg == cp0reg && names[i].sel == sel)
876 /* Print register REGNO, of type TYPE, for instruction OPCODE. */
879 print_reg (struct disassemble_info *info, const struct mips_opcode *opcode,
880 enum mips_reg_operand_type type, int regno)
885 info->fprintf_func (info->stream, "%s", mips_gpr_names[regno]);
889 info->fprintf_func (info->stream, "%s", mips_fpr_names[regno]);
893 if (opcode->pinfo & (FP_D | FP_S))
894 info->fprintf_func (info->stream, "$fcc%d", regno);
896 info->fprintf_func (info->stream, "$cc%d", regno);
900 if (opcode->membership & INSN_5400)
901 info->fprintf_func (info->stream, "$f%d", regno);
903 info->fprintf_func (info->stream, "$v%d", regno);
907 info->fprintf_func (info->stream, "$ac%d", regno);
911 if (opcode->name[strlen (opcode->name) - 1] == '0')
912 info->fprintf_func (info->stream, "%s", mips_cp0_names[regno]);
914 info->fprintf_func (info->stream, "$%d", regno);
918 info->fprintf_func (info->stream, "%s", mips_hwr_names[regno]);
923 /* Used to track the state carried over from previous operands in
925 struct mips_print_arg_state {
926 /* The value of the last OP_INT seen. We only use this for OP_MSB,
927 where the value is known to be unsigned and small. */
928 unsigned int last_int;
930 /* The type and number of the last OP_REG seen. We only use this for
931 OP_REPEAT_DEST_REG and OP_REPEAT_PREV_REG. */
932 enum mips_reg_operand_type last_reg_type;
933 unsigned int last_regno;
936 /* Initialize STATE for the start of an instruction. */
939 init_print_arg_state (struct mips_print_arg_state *state)
941 memset (state, 0, sizeof (*state));
944 /* Print operand OPERAND of OPCODE, using STATE to track inter-operand state.
945 UVAL is the encoding of the operand (shifted into bit 0) and BASE_PC is
946 the base address for OP_PCREL operands. */
949 print_insn_arg (struct disassemble_info *info,
950 struct mips_print_arg_state *state,
951 const struct mips_opcode *opcode,
952 const struct mips_operand *operand,
956 const fprintf_ftype infprintf = info->fprintf_func;
957 void *is = info->stream;
959 switch (operand->type)
963 const struct mips_int_operand *int_op;
965 int_op = (const struct mips_int_operand *) operand;
966 uval = mips_decode_int_operand (int_op, uval);
967 state->last_int = uval;
968 if (int_op->print_hex)
969 infprintf (is, "0x%x", uval);
971 infprintf (is, "%d", uval);
977 const struct mips_mapped_int_operand *mint_op;
979 mint_op = (const struct mips_mapped_int_operand *) operand;
980 uval = mint_op->int_map[uval];
981 state->last_int = uval;
982 if (mint_op->print_hex)
983 infprintf (is, "0x%x", uval);
985 infprintf (is, "%d", uval);
991 const struct mips_msb_operand *msb_op;
993 msb_op = (const struct mips_msb_operand *) operand;
994 uval += msb_op->bias;
996 uval -= state->last_int;
997 infprintf (is, "0x%x", uval);
1003 const struct mips_reg_operand *reg_op;
1005 reg_op = (const struct mips_reg_operand *) operand;
1006 if (reg_op->reg_map)
1007 uval = reg_op->reg_map[uval];
1008 print_reg (info, opcode, reg_op->reg_type, uval);
1010 state->last_reg_type = reg_op->reg_type;
1011 state->last_regno = uval;
1017 const struct mips_reg_pair_operand *pair_op;
1019 pair_op = (const struct mips_reg_pair_operand *) operand;
1020 print_reg (info, opcode, pair_op->reg_type,
1021 pair_op->reg1_map[uval]);
1022 infprintf (is, ",");
1023 print_reg (info, opcode, pair_op->reg_type,
1024 pair_op->reg2_map[uval]);
1030 const struct mips_pcrel_operand *pcrel_op;
1032 pcrel_op = (const struct mips_pcrel_operand *) operand;
1033 info->target = mips_decode_pcrel_operand (pcrel_op, base_pc, uval);
1035 /* Preserve the ISA bit for the GDB disassembler,
1036 otherwise clear it. */
1037 if (info->flavour != bfd_target_unknown_flavour)
1040 (*info->print_address_func) (info->target, info);
1045 infprintf (is, "%d", uval);
1048 case OP_ADDIUSP_INT:
1052 sval = mips_signed_operand (operand, uval) * 4;
1053 if (sval >= -8 && sval < 8)
1055 infprintf (is, "%d", sval);
1059 case OP_CLO_CLZ_DEST:
1061 unsigned int reg1, reg2;
1065 /* If one is zero use the other. */
1066 if (reg1 == reg2 || reg2 == 0)
1067 infprintf (is, "%s", mips_gpr_names[reg1]);
1069 infprintf (is, "%s", mips_gpr_names[reg2]);
1071 /* Bogus, result depends on processor. */
1072 infprintf (is, "%s or %s", mips_gpr_names[reg1],
1073 mips_gpr_names[reg2]);
1077 case OP_LWM_SWM_LIST:
1078 if (operand->size == 2)
1081 infprintf (is, "%s,%s",
1083 mips_gpr_names[31]);
1085 infprintf (is, "%s-%s,%s",
1087 mips_gpr_names[16 + uval],
1088 mips_gpr_names[31]);
1094 s_reg_encode = uval & 0xf;
1095 if (s_reg_encode != 0)
1097 if (s_reg_encode == 1)
1098 infprintf (is, "%s", mips_gpr_names[16]);
1099 else if (s_reg_encode < 9)
1100 infprintf (is, "%s-%s",
1102 mips_gpr_names[15 + s_reg_encode]);
1103 else if (s_reg_encode == 9)
1104 infprintf (is, "%s-%s,%s",
1107 mips_gpr_names[30]);
1109 infprintf (is, "UNKNOWN");
1112 if (uval & 0x10) /* For ra. */
1114 if (s_reg_encode == 0)
1115 infprintf (is, "%s", mips_gpr_names[31]);
1117 infprintf (is, ",%s", mips_gpr_names[31]);
1122 case OP_ENTRY_EXIT_LIST:
1125 unsigned int amask, smask;
1128 amask = (uval >> 3) & 7;
1129 if (amask > 0 && amask < 5)
1131 infprintf (is, "%s", mips_gpr_names[4]);
1133 infprintf (is, "-%s", mips_gpr_names[amask + 3]);
1137 smask = (uval >> 1) & 3;
1140 infprintf (is, "%s??", sep);
1145 infprintf (is, "%s%s", sep, mips_gpr_names[16]);
1147 infprintf (is, "-%s", mips_gpr_names[smask + 15]);
1153 infprintf (is, "%s%s", sep, mips_gpr_names[31]);
1157 if (amask == 5 || amask == 6)
1159 infprintf (is, "%s%s", sep, mips_fpr_names[0]);
1161 infprintf (is, "-%s", mips_fpr_names[1]);
1166 case OP_SAVE_RESTORE_LIST:
1167 /* Should be handled by the caller due to extend behavior. */
1170 case OP_MDMX_IMM_REG:
1176 if ((vsel & 0x10) == 0)
1181 for (fmt = 0; fmt < 3; fmt++, vsel >>= 1)
1182 if ((vsel & 1) == 0)
1184 print_reg (info, opcode, OP_REG_VEC, uval);
1185 infprintf (is, "[%d]", vsel >> 1);
1187 else if ((vsel & 0x08) == 0)
1188 print_reg (info, opcode, OP_REG_VEC, uval);
1190 infprintf (is, "0x%x", uval);
1194 case OP_REPEAT_PREV_REG:
1195 print_reg (info, opcode, state->last_reg_type, state->last_regno);
1198 case OP_REPEAT_DEST_REG:
1199 /* Should always match OP_REPEAT_PREV_REG first. */
1203 infprintf (is, "$pc");
1208 /* Print the arguments for INSN, which is described by OPCODE.
1209 Use DECODE_OPERAND to get the encoding of each operand. Use BASE_PC
1210 as the base of OP_PCREL operands. */
1213 print_insn_args (struct disassemble_info *info,
1214 const struct mips_opcode *opcode,
1215 const struct mips_operand *(*decode_operand) (const char *),
1216 unsigned int insn, bfd_vma base_pc)
1218 const fprintf_ftype infprintf = info->fprintf_func;
1219 void *is = info->stream;
1220 struct mips_print_arg_state state;
1221 const struct mips_operand *operand;
1224 init_print_arg_state (&state);
1225 for (s = opcode->args; *s; ++s)
1232 infprintf (is, "%c", *s);
1236 operand = decode_operand (s);
1239 /* xgettext:c-format */
1241 _("# internal error, undefined operand in `%s %s'"),
1242 opcode->name, opcode->args);
1245 if (operand->type == OP_REG
1248 && opcode->name[strlen (opcode->name) - 1] == '0')
1250 /* Coprocessor register 0 with sel field (MT ASE). */
1251 const struct mips_cp0sel_name *n;
1252 unsigned int reg, sel;
1254 reg = mips_extract_operand (operand, insn);
1256 operand = decode_operand (s);
1257 sel = mips_extract_operand (operand, insn);
1259 /* CP0 register including 'sel' code for mftc0, to be
1260 printed textually if known. If not known, print both
1261 CP0 register name and sel numerically since CP0 register
1262 with sel 0 may have a name unrelated to register being
1264 n = lookup_mips_cp0sel_name (mips_cp0sel_names,
1265 mips_cp0sel_names_len,
1268 infprintf (is, "%s", n->name);
1270 infprintf (is, "$%d,%d", reg, sel);
1273 print_insn_arg (info, &state, opcode, operand, base_pc,
1274 mips_extract_operand (operand, insn));
1275 if (*s == 'm' || *s == '+')
1282 /* Print the mips instruction at address MEMADDR in debugged memory,
1283 on using INFO. Returns length of the instruction, in bytes, which is
1284 always INSNLEN. BIGENDIAN must be 1 if this is big-endian code, 0 if
1285 this is little-endian code. */
1288 print_insn_mips (bfd_vma memaddr,
1290 struct disassemble_info *info)
1292 #define GET_OP(insn, field) \
1293 (((insn) >> OP_SH_##field) & OP_MASK_##field)
1294 static const struct mips_opcode *mips_hash[OP_MASK_OP + 1];
1295 const fprintf_ftype infprintf = info->fprintf_func;
1296 const struct mips_opcode *op;
1297 static bfd_boolean init = 0;
1298 void *is = info->stream;
1300 /* Build a hash table to shorten the search time. */
1305 for (i = 0; i <= OP_MASK_OP; i++)
1307 for (op = mips_opcodes; op < &mips_opcodes[NUMOPCODES]; op++)
1309 if (op->pinfo == INSN_MACRO
1310 || (no_aliases && (op->pinfo2 & INSN2_ALIAS)))
1312 if (i == GET_OP (op->match, OP))
1323 info->bytes_per_chunk = INSNLEN;
1324 info->display_endian = info->endian;
1325 info->insn_info_valid = 1;
1326 info->branch_delay_insns = 0;
1327 info->data_size = 0;
1328 info->insn_type = dis_nonbranch;
1332 op = mips_hash[GET_OP (word, OP)];
1335 for (; op < &mips_opcodes[NUMOPCODES]; op++)
1337 if (op->pinfo != INSN_MACRO
1338 && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
1339 && (word & op->mask) == op->match)
1341 /* We always allow to disassemble the jalx instruction. */
1342 if (!opcode_is_member (op, mips_isa, mips_ase, mips_processor)
1343 && strcmp (op->name, "jalx"))
1346 /* Figure out instruction type and branch delay information. */
1347 if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
1349 if ((op->pinfo & (INSN_WRITE_GPR_31
1350 | INSN_WRITE_GPR_D)) != 0)
1351 info->insn_type = dis_jsr;
1353 info->insn_type = dis_branch;
1354 info->branch_delay_insns = 1;
1356 else if ((op->pinfo & (INSN_COND_BRANCH_DELAY
1357 | INSN_COND_BRANCH_LIKELY)) != 0)
1359 if ((op->pinfo & INSN_WRITE_GPR_31) != 0)
1360 info->insn_type = dis_condjsr;
1362 info->insn_type = dis_condbranch;
1363 info->branch_delay_insns = 1;
1365 else if ((op->pinfo & (INSN_STORE_MEMORY
1366 | INSN_LOAD_MEMORY_DELAY)) != 0)
1367 info->insn_type = dis_dref;
1369 infprintf (is, "%s", op->name);
1373 infprintf (is, "\t");
1374 print_insn_args (info, op, decode_mips_operand, word,
1384 /* Handle undefined instructions. */
1385 info->insn_type = dis_noninsn;
1386 infprintf (is, "0x%x", word);
1390 /* Disassemble an operand for a mips16 instruction. */
1393 print_mips16_insn_arg (struct disassemble_info *info,
1394 struct mips_print_arg_state *state,
1395 const struct mips_opcode *opcode,
1396 char type, bfd_vma memaddr,
1397 unsigned insn, bfd_boolean use_extend,
1398 unsigned extend, bfd_boolean is_offset)
1400 const fprintf_ftype infprintf = info->fprintf_func;
1401 void *is = info->stream;
1402 const struct mips_operand *operand, *ext_operand;
1414 infprintf (is, "%c", type);
1418 operand = decode_mips16_operand (type, FALSE);
1421 /* xgettext:c-format */
1422 infprintf (is, _("# internal error, undefined operand in `%s %s'"),
1423 opcode->name, opcode->args);
1427 if (operand->type == OP_SAVE_RESTORE_LIST)
1429 /* Handle this case here because of the complex interation
1430 with the EXTEND opcode. */
1431 unsigned int amask, nargs, nstatics, nsreg, smask, frame_size, i, j;
1434 amask = extend & 0xf;
1435 if (amask == MIPS16_ALL_ARGS)
1440 else if (amask == MIPS16_ALL_STATICS)
1448 nstatics = amask & 3;
1454 infprintf (is, "%s", mips_gpr_names[4]);
1456 infprintf (is, "-%s", mips_gpr_names[4 + nargs - 1]);
1460 frame_size = ((extend & 0xf0) | (insn & 0x0f)) * 8;
1461 if (frame_size == 0 && !use_extend)
1463 infprintf (is, "%s%d", sep, frame_size);
1465 if (insn & 0x40) /* $ra */
1466 infprintf (is, ",%s", mips_gpr_names[31]);
1468 nsreg = (extend >> 8) & 0x7;
1470 if (insn & 0x20) /* $s0 */
1472 if (insn & 0x10) /* $s1 */
1474 if (nsreg > 0) /* $s2-$s8 */
1475 smask |= ((1 << nsreg) - 1) << 2;
1477 for (i = 0; i < 9; i++)
1478 if (smask & (1 << i))
1480 infprintf (is, ",%s", mips_gpr_names[i == 8 ? 30 : (16 + i)]);
1481 /* Skip over string of set bits. */
1482 for (j = i; smask & (2 << j); j++)
1485 infprintf (is, "-%s", mips_gpr_names[j == 8 ? 30 : (16 + j)]);
1488 /* Statics $ax - $a3. */
1490 infprintf (is, ",%s", mips_gpr_names[7]);
1491 else if (nstatics > 0)
1492 infprintf (is, ",%s-%s",
1493 mips_gpr_names[7 - nstatics + 1],
1498 if (is_offset && operand->type == OP_INT)
1500 const struct mips_int_operand *int_op;
1502 int_op = (const struct mips_int_operand *) operand;
1503 info->insn_type = dis_dref;
1504 info->data_size = 1 << int_op->shift;
1507 if (operand->size == 26)
1508 /* In this case INSN is the first two bytes of the instruction
1509 and EXTEND is the second two bytes. */
1510 uval = ((insn & 0x1f) << 21) | ((insn & 0x3e0) << 11) | extend;
1513 /* Calculate the full field value. */
1514 uval = mips_extract_operand (operand, insn);
1517 ext_operand = decode_mips16_operand (type, TRUE);
1518 if (ext_operand != operand)
1520 operand = ext_operand;
1521 if (operand->size == 16)
1522 uval |= ((extend & 0x1f) << 11) | (extend & 0x7e0);
1523 else if (operand->size == 15)
1524 uval |= ((extend & 0xf) << 11) | (extend & 0x7f0);
1526 uval = ((extend >> 6) & 0x1f) | (extend & 0x20);
1531 baseaddr = memaddr + 2;
1532 if (operand->type == OP_PCREL)
1534 const struct mips_pcrel_operand *pcrel_op;
1536 pcrel_op = (const struct mips_pcrel_operand *) operand;
1537 if (!pcrel_op->include_isa_bit && use_extend)
1538 baseaddr = memaddr - 2;
1539 else if (!pcrel_op->include_isa_bit)
1543 /* If this instruction is in the delay slot of a JR
1544 instruction, the base address is the address of the
1545 JR instruction. If it is in the delay slot of a JALR
1546 instruction, the base address is the address of the
1547 JALR instruction. This test is unreliable: we have
1548 no way of knowing whether the previous word is
1549 instruction or data. */
1550 if (info->read_memory_func (memaddr - 4, buffer, 2, info) == 0
1551 && (((info->endian == BFD_ENDIAN_BIG
1552 ? bfd_getb16 (buffer)
1553 : bfd_getl16 (buffer))
1554 & 0xf800) == 0x1800))
1555 baseaddr = memaddr - 4;
1556 else if (info->read_memory_func (memaddr - 2, buffer, 2,
1558 && (((info->endian == BFD_ENDIAN_BIG
1559 ? bfd_getb16 (buffer)
1560 : bfd_getl16 (buffer))
1561 & 0xf81f) == 0xe800))
1562 baseaddr = memaddr - 2;
1568 print_insn_arg (info, state, opcode, operand, baseaddr + 1, uval);
1574 /* Check if the given address is the last word of a MIPS16 PLT entry.
1575 This word is data and depending on the value it may interfere with
1576 disassembly of further PLT entries. We make use of the fact PLT
1577 symbols are marked BSF_SYNTHETIC. */
1579 is_mips16_plt_tail (struct disassemble_info *info, bfd_vma addr)
1583 && (info->symbols[0]->flags & BSF_SYNTHETIC)
1584 && addr == bfd_asymbol_value (info->symbols[0]) + 12)
1590 /* Disassemble mips16 instructions. */
1593 print_insn_mips16 (bfd_vma memaddr, struct disassemble_info *info)
1595 const fprintf_ftype infprintf = info->fprintf_func;
1600 bfd_boolean use_extend;
1602 const struct mips_opcode *op, *opend;
1603 struct mips_print_arg_state state;
1604 void *is = info->stream;
1606 info->bytes_per_chunk = 2;
1607 info->display_endian = info->endian;
1608 info->insn_info_valid = 1;
1609 info->branch_delay_insns = 0;
1610 info->data_size = 0;
1614 #define GET_OP(insn, field) \
1615 (((insn) >> MIPS16OP_SH_##field) & MIPS16OP_MASK_##field)
1616 /* Decode PLT entry's GOT slot address word. */
1617 if (is_mips16_plt_tail (info, memaddr))
1619 info->insn_type = dis_noninsn;
1620 status = (*info->read_memory_func) (memaddr, buffer, 4, info);
1623 unsigned int gotslot;
1625 if (info->endian == BFD_ENDIAN_BIG)
1626 gotslot = bfd_getb32 (buffer);
1628 gotslot = bfd_getl32 (buffer);
1629 infprintf (is, ".word\t0x%x", gotslot);
1636 info->insn_type = dis_nonbranch;
1637 status = (*info->read_memory_func) (memaddr, buffer, 2, info);
1641 (*info->memory_error_func) (status, memaddr, info);
1647 if (info->endian == BFD_ENDIAN_BIG)
1648 insn = bfd_getb16 (buffer);
1650 insn = bfd_getl16 (buffer);
1652 /* Handle the extend opcode specially. */
1654 if ((insn & 0xf800) == 0xf000)
1657 extend = insn & 0x7ff;
1661 status = (*info->read_memory_func) (memaddr, buffer, 2, info);
1664 infprintf (is, "extend 0x%x", (unsigned int) extend);
1665 (*info->memory_error_func) (status, memaddr, info);
1669 if (info->endian == BFD_ENDIAN_BIG)
1670 insn = bfd_getb16 (buffer);
1672 insn = bfd_getl16 (buffer);
1674 /* Check for an extend opcode followed by an extend opcode. */
1675 if ((insn & 0xf800) == 0xf000)
1677 infprintf (is, "extend 0x%x", (unsigned int) extend);
1678 info->insn_type = dis_noninsn;
1685 /* FIXME: Should probably use a hash table on the major opcode here. */
1687 opend = mips16_opcodes + bfd_mips16_num_opcodes;
1688 for (op = mips16_opcodes; op < opend; op++)
1690 if (op->pinfo != INSN_MACRO
1691 && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
1692 && (insn & op->mask) == op->match)
1696 if (op->args[0] == 'a' || op->args[0] == 'i')
1700 infprintf (is, "extend 0x%x", (unsigned int) extend);
1701 info->insn_type = dis_noninsn;
1709 status = (*info->read_memory_func) (memaddr, buffer, 2,
1714 if (info->endian == BFD_ENDIAN_BIG)
1715 extend = bfd_getb16 (buffer);
1717 extend = bfd_getl16 (buffer);
1722 infprintf (is, "%s", op->name);
1723 if (op->args[0] != '\0')
1724 infprintf (is, "\t");
1726 init_print_arg_state (&state);
1727 for (s = op->args; *s != '\0'; s++)
1731 && GET_OP (insn, RX) == GET_OP (insn, RY))
1733 /* Skip the register and the comma. */
1739 && GET_OP (insn, RZ) == GET_OP (insn, RX))
1741 /* Skip the register and the comma. */
1745 print_mips16_insn_arg (info, &state, op, *s, memaddr, insn,
1746 use_extend, extend, s[1] == '(');
1749 /* Figure out branch instruction type and delay slot information. */
1750 if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0)
1751 info->branch_delay_insns = 1;
1752 if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0
1753 || (op->pinfo2 & INSN2_UNCOND_BRANCH) != 0)
1755 if ((op->pinfo & INSN_WRITE_GPR_31) != 0)
1756 info->insn_type = dis_jsr;
1758 info->insn_type = dis_branch;
1760 else if ((op->pinfo2 & INSN2_COND_BRANCH) != 0)
1761 info->insn_type = dis_condbranch;
1769 infprintf (is, "0x%x", extend | 0xf000);
1770 infprintf (is, "0x%x", insn);
1771 info->insn_type = dis_noninsn;
1776 /* Disassemble microMIPS instructions. */
1779 print_insn_micromips (bfd_vma memaddr, struct disassemble_info *info)
1781 const fprintf_ftype infprintf = info->fprintf_func;
1782 const struct mips_opcode *op, *opend;
1783 void *is = info->stream;
1785 unsigned int higher;
1786 unsigned int length;
1790 info->bytes_per_chunk = 2;
1791 info->display_endian = info->endian;
1792 info->insn_info_valid = 1;
1793 info->branch_delay_insns = 0;
1794 info->data_size = 0;
1795 info->insn_type = dis_nonbranch;
1799 status = (*info->read_memory_func) (memaddr, buffer, 2, info);
1802 (*info->memory_error_func) (status, memaddr, info);
1808 if (info->endian == BFD_ENDIAN_BIG)
1809 insn = bfd_getb16 (buffer);
1811 insn = bfd_getl16 (buffer);
1813 if ((insn & 0xfc00) == 0x7c00)
1815 /* This is a 48-bit microMIPS instruction. */
1818 status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info);
1821 infprintf (is, "micromips 0x%x", higher);
1822 (*info->memory_error_func) (status, memaddr + 2, info);
1825 if (info->endian == BFD_ENDIAN_BIG)
1826 insn = bfd_getb16 (buffer);
1828 insn = bfd_getl16 (buffer);
1829 higher = (higher << 16) | insn;
1831 status = (*info->read_memory_func) (memaddr + 4, buffer, 2, info);
1834 infprintf (is, "micromips 0x%x", higher);
1835 (*info->memory_error_func) (status, memaddr + 4, info);
1838 if (info->endian == BFD_ENDIAN_BIG)
1839 insn = bfd_getb16 (buffer);
1841 insn = bfd_getl16 (buffer);
1842 infprintf (is, "0x%x%04x (48-bit insn)", higher, insn);
1844 info->insn_type = dis_noninsn;
1847 else if ((insn & 0x1c00) == 0x0000 || (insn & 0x1000) == 0x1000)
1849 /* This is a 32-bit microMIPS instruction. */
1852 status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info);
1855 infprintf (is, "micromips 0x%x", higher);
1856 (*info->memory_error_func) (status, memaddr + 2, info);
1860 if (info->endian == BFD_ENDIAN_BIG)
1861 insn = bfd_getb16 (buffer);
1863 insn = bfd_getl16 (buffer);
1865 insn = insn | (higher << 16);
1870 /* FIXME: Should probably use a hash table on the major opcode here. */
1872 opend = micromips_opcodes + bfd_micromips_num_opcodes;
1873 for (op = micromips_opcodes; op < opend; op++)
1875 if (op->pinfo != INSN_MACRO
1876 && !(no_aliases && (op->pinfo2 & INSN2_ALIAS))
1877 && (insn & op->mask) == op->match
1878 && ((length == 2 && (op->mask & 0xffff0000) == 0)
1879 || (length == 4 && (op->mask & 0xffff0000) != 0)))
1881 infprintf (is, "%s", op->name);
1885 infprintf (is, "\t");
1886 print_insn_args (info, op, decode_micromips_operand, insn,
1887 memaddr + length + 1);
1890 /* Figure out instruction type and branch delay information. */
1892 & (INSN_UNCOND_BRANCH_DELAY | INSN_COND_BRANCH_DELAY)) != 0)
1893 info->branch_delay_insns = 1;
1894 if (((op->pinfo & INSN_UNCOND_BRANCH_DELAY)
1895 | (op->pinfo2 & INSN2_UNCOND_BRANCH)) != 0)
1897 if ((op->pinfo & (INSN_WRITE_GPR_31 | INSN_WRITE_GPR_T)) != 0)
1898 info->insn_type = dis_jsr;
1900 info->insn_type = dis_branch;
1902 else if (((op->pinfo & INSN_COND_BRANCH_DELAY)
1903 | (op->pinfo2 & INSN2_COND_BRANCH)) != 0)
1905 if ((op->pinfo & INSN_WRITE_GPR_31) != 0)
1906 info->insn_type = dis_condjsr;
1908 info->insn_type = dis_condbranch;
1911 & (INSN_STORE_MEMORY | INSN_LOAD_MEMORY_DELAY)) != 0)
1912 info->insn_type = dis_dref;
1918 infprintf (is, "0x%x", insn);
1919 info->insn_type = dis_noninsn;
1924 /* Return 1 if a symbol associated with the location being disassembled
1925 indicates a compressed (MIPS16 or microMIPS) mode. We iterate over
1926 all the symbols at the address being considered assuming if at least
1927 one of them indicates code compression, then such code has been
1928 genuinely produced here (other symbols could have been derived from
1929 function symbols defined elsewhere or could define data). Otherwise,
1933 is_compressed_mode_p (struct disassemble_info *info)
1938 for (i = info->symtab_pos, l = i + info->num_symbols; i < l; i++)
1939 if (((info->symtab[i])->flags & BSF_SYNTHETIC) != 0
1941 && ELF_ST_IS_MIPS16 ((*info->symbols)->udata.i))
1943 && ELF_ST_IS_MICROMIPS ((*info->symbols)->udata.i))))
1945 else if (bfd_asymbol_flavour (info->symtab[i]) == bfd_target_elf_flavour
1946 && info->symtab[i]->section == info->section)
1948 elf_symbol_type *symbol = (elf_symbol_type *) info->symtab[i];
1950 && ELF_ST_IS_MIPS16 (symbol->internal_elf_sym.st_other))
1952 && ELF_ST_IS_MICROMIPS (symbol->internal_elf_sym.st_other)))
1959 /* In an environment where we do not know the symbol type of the
1960 instruction we are forced to assume that the low order bit of the
1961 instructions' address may mark it as a mips16 instruction. If we
1962 are single stepping, or the pc is within the disassembled function,
1963 this works. Otherwise, we need a clue. Sometimes. */
1966 _print_insn_mips (bfd_vma memaddr,
1967 struct disassemble_info *info,
1968 enum bfd_endian endianness)
1970 int (*print_insn_compr) (bfd_vma, struct disassemble_info *);
1971 bfd_byte buffer[INSNLEN];
1974 set_default_mips_dis_options (info);
1975 parse_mips_dis_options (info->disassembler_options);
1977 if (info->mach == bfd_mach_mips16)
1978 return print_insn_mips16 (memaddr, info);
1979 if (info->mach == bfd_mach_mips_micromips)
1980 return print_insn_micromips (memaddr, info);
1982 print_insn_compr = !micromips_ase ? print_insn_mips16 : print_insn_micromips;
1985 /* FIXME: If odd address, this is CLEARLY a compressed instruction. */
1986 /* Only a few tools will work this way. */
1988 return print_insn_compr (memaddr, info);
1991 #if SYMTAB_AVAILABLE
1992 if (is_compressed_mode_p (info))
1993 return print_insn_compr (memaddr, info);
1996 status = (*info->read_memory_func) (memaddr, buffer, INSNLEN, info);
2001 if (endianness == BFD_ENDIAN_BIG)
2002 insn = bfd_getb32 (buffer);
2004 insn = bfd_getl32 (buffer);
2006 return print_insn_mips (memaddr, insn, info);
2010 (*info->memory_error_func) (status, memaddr, info);
2016 print_insn_big_mips (bfd_vma memaddr, struct disassemble_info *info)
2018 return _print_insn_mips (memaddr, info, BFD_ENDIAN_BIG);
2022 print_insn_little_mips (bfd_vma memaddr, struct disassemble_info *info)
2024 return _print_insn_mips (memaddr, info, BFD_ENDIAN_LITTLE);
2028 print_mips_disassembler_options (FILE *stream)
2032 fprintf (stream, _("\n\
2033 The following MIPS specific disassembler options are supported for use\n\
2034 with the -M switch (multiple options should be separated by commas):\n"));
2036 fprintf (stream, _("\n\
2037 virt Recognize the virtualization ASE instructions.\n"));
2039 fprintf (stream, _("\n\
2040 gpr-names=ABI Print GPR names according to specified ABI.\n\
2041 Default: based on binary being disassembled.\n"));
2043 fprintf (stream, _("\n\
2044 fpr-names=ABI Print FPR names according to specified ABI.\n\
2045 Default: numeric.\n"));
2047 fprintf (stream, _("\n\
2048 cp0-names=ARCH Print CP0 register names according to\n\
2049 specified architecture.\n\
2050 Default: based on binary being disassembled.\n"));
2052 fprintf (stream, _("\n\
2053 hwr-names=ARCH Print HWR names according to specified \n\
2055 Default: based on binary being disassembled.\n"));
2057 fprintf (stream, _("\n\
2058 reg-names=ABI Print GPR and FPR names according to\n\
2059 specified ABI.\n"));
2061 fprintf (stream, _("\n\
2062 reg-names=ARCH Print CP0 register and HWR names according to\n\
2063 specified architecture.\n"));
2065 fprintf (stream, _("\n\
2066 For the options above, the following values are supported for \"ABI\":\n\
2068 for (i = 0; i < ARRAY_SIZE (mips_abi_choices); i++)
2069 fprintf (stream, " %s", mips_abi_choices[i].name);
2070 fprintf (stream, _("\n"));
2072 fprintf (stream, _("\n\
2073 For the options above, The following values are supported for \"ARCH\":\n\
2075 for (i = 0; i < ARRAY_SIZE (mips_arch_choices); i++)
2076 if (*mips_arch_choices[i].name != '\0')
2077 fprintf (stream, " %s", mips_arch_choices[i].name);
2078 fprintf (stream, _("\n"));
2080 fprintf (stream, _("\n"));