Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Print mips instructions for GDB, the GNU debugger, or for objdump. |
060d22b0 | 2 | Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
8b99bf0b | 3 | 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2012 |
73da6b6b | 4 | Free Software Foundation, Inc. |
252b5132 RH |
5 | Contributed by Nobuyuki Hikichi(hikichi@sra.co.jp). |
6 | ||
9b201bb5 | 7 | This file is part of the GNU opcodes library. |
252b5132 | 8 | |
9b201bb5 | 9 | This library is free software; you can redistribute it and/or modify |
47b0e7ad | 10 | it under the terms of the GNU General Public License as published by |
9b201bb5 NC |
11 | the Free Software Foundation; either version 3, or (at your option) |
12 | any later version. | |
252b5132 | 13 | |
9b201bb5 NC |
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. | |
252b5132 | 18 | |
47b0e7ad NC |
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. */ | |
252b5132 | 23 | |
252b5132 RH |
24 | #include "sysdep.h" |
25 | #include "dis-asm.h" | |
640c0ccd | 26 | #include "libiberty.h" |
252b5132 RH |
27 | #include "opcode/mips.h" |
28 | #include "opintl.h" | |
29 | ||
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 | |
7f6621cd | 33 | system as when it is used for disassembler support in a monitor. */ |
252b5132 RH |
34 | |
35 | #if !defined(EMBEDDED_ENV) | |
36 | #define SYMTAB_AVAILABLE 1 | |
37 | #include "elf-bfd.h" | |
38 | #include "elf/mips.h" | |
39 | #endif | |
40 | ||
aa5f19f2 NC |
41 | /* Mips instructions are at maximum this many bytes long. */ |
42 | #define INSNLEN 4 | |
43 | ||
252b5132 | 44 | \f |
aa5f19f2 | 45 | /* FIXME: These should be shared with gdb somehow. */ |
252b5132 | 46 | |
47b0e7ad NC |
47 | struct mips_cp0sel_name |
48 | { | |
49 | unsigned int cp0reg; | |
50 | unsigned int sel; | |
51 | const char * const name; | |
bbcc0807 CD |
52 | }; |
53 | ||
654c225a TS |
54 | /* The mips16 registers. */ |
55 | static const unsigned int mips16_to_32_reg_map[] = | |
47b0e7ad | 56 | { |
654c225a | 57 | 16, 17, 2, 3, 4, 5, 6, 7 |
252b5132 | 58 | }; |
fb48caed | 59 | |
654c225a TS |
60 | #define mips16_reg_names(rn) mips_gpr_names[mips16_to_32_reg_map[rn]] |
61 | ||
62 | ||
47b0e7ad NC |
63 | static const char * const mips_gpr_names_numeric[32] = |
64 | { | |
640c0ccd CD |
65 | "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7", |
66 | "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", | |
67 | "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23", | |
68 | "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31" | |
aa5f19f2 NC |
69 | }; |
70 | ||
47b0e7ad NC |
71 | static const char * const mips_gpr_names_oldabi[32] = |
72 | { | |
640c0ccd CD |
73 | "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3", |
74 | "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", | |
75 | "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", | |
76 | "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra" | |
aa5f19f2 NC |
77 | }; |
78 | ||
47b0e7ad NC |
79 | static const char * const mips_gpr_names_newabi[32] = |
80 | { | |
640c0ccd | 81 | "zero", "at", "v0", "v1", "a0", "a1", "a2", "a3", |
0b14f26e | 82 | "a4", "a5", "a6", "a7", "t0", "t1", "t2", "t3", |
640c0ccd CD |
83 | "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", |
84 | "t8", "t9", "k0", "k1", "gp", "sp", "s8", "ra" | |
85 | }; | |
86 | ||
47b0e7ad NC |
87 | static const char * const mips_fpr_names_numeric[32] = |
88 | { | |
640c0ccd CD |
89 | "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", "$f7", |
90 | "$f8", "$f9", "$f10", "$f11", "$f12", "$f13", "$f14", "$f15", | |
91 | "$f16", "$f17", "$f18", "$f19", "$f20", "$f21", "$f22", "$f23", | |
92 | "$f24", "$f25", "$f26", "$f27", "$f28", "$f29", "$f30", "$f31" | |
93 | }; | |
94 | ||
47b0e7ad NC |
95 | static const char * const mips_fpr_names_32[32] = |
96 | { | |
640c0ccd CD |
97 | "fv0", "fv0f", "fv1", "fv1f", "ft0", "ft0f", "ft1", "ft1f", |
98 | "ft2", "ft2f", "ft3", "ft3f", "fa0", "fa0f", "fa1", "fa1f", | |
99 | "ft4", "ft4f", "ft5", "ft5f", "fs0", "fs0f", "fs1", "fs1f", | |
100 | "fs2", "fs2f", "fs3", "fs3f", "fs4", "fs4f", "fs5", "fs5f" | |
101 | }; | |
102 | ||
47b0e7ad NC |
103 | static const char * const mips_fpr_names_n32[32] = |
104 | { | |
640c0ccd CD |
105 | "fv0", "ft14", "fv1", "ft15", "ft0", "ft1", "ft2", "ft3", |
106 | "ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3", | |
107 | "fa4", "fa5", "fa6", "fa7", "fs0", "ft8", "fs1", "ft9", | |
108 | "fs2", "ft10", "fs3", "ft11", "fs4", "ft12", "fs5", "ft13" | |
109 | }; | |
110 | ||
47b0e7ad NC |
111 | static const char * const mips_fpr_names_64[32] = |
112 | { | |
640c0ccd CD |
113 | "fv0", "ft12", "fv1", "ft13", "ft0", "ft1", "ft2", "ft3", |
114 | "ft4", "ft5", "ft6", "ft7", "fa0", "fa1", "fa2", "fa3", | |
115 | "fa4", "fa5", "fa6", "fa7", "ft8", "ft9", "ft10", "ft11", | |
116 | "fs0", "fs1", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7" | |
117 | }; | |
118 | ||
47b0e7ad NC |
119 | static const char * const mips_cp0_names_numeric[32] = |
120 | { | |
640c0ccd CD |
121 | "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7", |
122 | "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", | |
123 | "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23", | |
124 | "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31" | |
125 | }; | |
126 | ||
f409fd1e MR |
127 | static const char * const mips_cp0_names_r3000[32] = |
128 | { | |
129 | "c0_index", "c0_random", "c0_entrylo", "$3", | |
130 | "c0_context", "$5", "$6", "$7", | |
131 | "c0_badvaddr", "$9", "c0_entryhi", "$11", | |
132 | "c0_sr", "c0_cause", "c0_epc", "c0_prid", | |
133 | "$16", "$17", "$18", "$19", | |
134 | "$20", "$21", "$22", "$23", | |
135 | "$24", "$25", "$26", "$27", | |
136 | "$28", "$29", "$30", "$31", | |
137 | }; | |
138 | ||
139 | static const char * const mips_cp0_names_r4000[32] = | |
140 | { | |
141 | "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1", | |
142 | "c0_context", "c0_pagemask", "c0_wired", "$7", | |
143 | "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare", | |
144 | "c0_sr", "c0_cause", "c0_epc", "c0_prid", | |
145 | "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi", | |
146 | "c0_xcontext", "$21", "$22", "$23", | |
147 | "$24", "$25", "c0_ecc", "c0_cacheerr", | |
148 | "c0_taglo", "c0_taghi", "c0_errorepc", "$31", | |
149 | }; | |
150 | ||
e407c74b NC |
151 | static const char * const mips_cp0_names_r5900[32] = |
152 | { | |
153 | "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1", | |
154 | "c0_context", "c0_pagemask", "c0_wired", "$7", | |
155 | "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare", | |
156 | "c0_sr", "c0_cause", "c0_epc", "c0_prid", | |
157 | "c0_config", "$17", "$18", "$19", | |
158 | "$20", "$21", "$22", "c0_badpaddr", | |
159 | "c0_depc", "c0_perfcnt", "$26", "$27", | |
160 | "c0_taglo", "c0_taghi", "c0_errorepc", "$31" | |
161 | }; | |
162 | ||
163 | static const struct mips_cp0sel_name mips_cp0sel_names_mipsr5900[] = | |
164 | { | |
165 | { 24, 2, "c0_iab" }, | |
166 | { 24, 3, "c0_iabm" }, | |
167 | { 24, 4, "c0_dab" }, | |
168 | { 24, 5, "c0_dabm" }, | |
169 | { 24, 6, "c0_dvb" }, | |
170 | { 24, 7, "c0_dvbm" }, | |
171 | { 25, 1, "c0_perfcnt,1" }, | |
172 | { 25, 2, "c0_perfcnt,2" } | |
173 | }; | |
174 | ||
47b0e7ad NC |
175 | static const char * const mips_cp0_names_mips3264[32] = |
176 | { | |
640c0ccd CD |
177 | "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1", |
178 | "c0_context", "c0_pagemask", "c0_wired", "$7", | |
179 | "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare", | |
180 | "c0_status", "c0_cause", "c0_epc", "c0_prid", | |
181 | "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi", | |
182 | "c0_xcontext", "$21", "$22", "c0_debug", | |
183 | "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr", | |
184 | "c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave", | |
185 | }; | |
186 | ||
47b0e7ad NC |
187 | static const struct mips_cp0sel_name mips_cp0sel_names_mips3264[] = |
188 | { | |
bbcc0807 CD |
189 | { 16, 1, "c0_config1" }, |
190 | { 16, 2, "c0_config2" }, | |
191 | { 16, 3, "c0_config3" }, | |
192 | { 18, 1, "c0_watchlo,1" }, | |
193 | { 18, 2, "c0_watchlo,2" }, | |
194 | { 18, 3, "c0_watchlo,3" }, | |
195 | { 18, 4, "c0_watchlo,4" }, | |
196 | { 18, 5, "c0_watchlo,5" }, | |
197 | { 18, 6, "c0_watchlo,6" }, | |
198 | { 18, 7, "c0_watchlo,7" }, | |
199 | { 19, 1, "c0_watchhi,1" }, | |
200 | { 19, 2, "c0_watchhi,2" }, | |
201 | { 19, 3, "c0_watchhi,3" }, | |
202 | { 19, 4, "c0_watchhi,4" }, | |
203 | { 19, 5, "c0_watchhi,5" }, | |
204 | { 19, 6, "c0_watchhi,6" }, | |
205 | { 19, 7, "c0_watchhi,7" }, | |
206 | { 25, 1, "c0_perfcnt,1" }, | |
207 | { 25, 2, "c0_perfcnt,2" }, | |
208 | { 25, 3, "c0_perfcnt,3" }, | |
209 | { 25, 4, "c0_perfcnt,4" }, | |
210 | { 25, 5, "c0_perfcnt,5" }, | |
211 | { 25, 6, "c0_perfcnt,6" }, | |
212 | { 25, 7, "c0_perfcnt,7" }, | |
213 | { 27, 1, "c0_cacheerr,1" }, | |
214 | { 27, 2, "c0_cacheerr,2" }, | |
215 | { 27, 3, "c0_cacheerr,3" }, | |
216 | { 28, 1, "c0_datalo" }, | |
217 | { 29, 1, "c0_datahi" } | |
218 | }; | |
219 | ||
47b0e7ad NC |
220 | static const char * const mips_cp0_names_mips3264r2[32] = |
221 | { | |
af7ee8bf CD |
222 | "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1", |
223 | "c0_context", "c0_pagemask", "c0_wired", "c0_hwrena", | |
224 | "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare", | |
225 | "c0_status", "c0_cause", "c0_epc", "c0_prid", | |
226 | "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi", | |
227 | "c0_xcontext", "$21", "$22", "c0_debug", | |
228 | "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr", | |
229 | "c0_taglo", "c0_taghi", "c0_errorepc", "c0_desave", | |
230 | }; | |
231 | ||
47b0e7ad NC |
232 | static const struct mips_cp0sel_name mips_cp0sel_names_mips3264r2[] = |
233 | { | |
bbcc0807 | 234 | { 4, 1, "c0_contextconfig" }, |
59c455b3 TS |
235 | { 0, 1, "c0_mvpcontrol" }, |
236 | { 0, 2, "c0_mvpconf0" }, | |
237 | { 0, 3, "c0_mvpconf1" }, | |
238 | { 1, 1, "c0_vpecontrol" }, | |
239 | { 1, 2, "c0_vpeconf0" }, | |
240 | { 1, 3, "c0_vpeconf1" }, | |
241 | { 1, 4, "c0_yqmask" }, | |
242 | { 1, 5, "c0_vpeschedule" }, | |
243 | { 1, 6, "c0_vpeschefback" }, | |
244 | { 2, 1, "c0_tcstatus" }, | |
245 | { 2, 2, "c0_tcbind" }, | |
246 | { 2, 3, "c0_tcrestart" }, | |
247 | { 2, 4, "c0_tchalt" }, | |
248 | { 2, 5, "c0_tccontext" }, | |
249 | { 2, 6, "c0_tcschedule" }, | |
250 | { 2, 7, "c0_tcschefback" }, | |
bbcc0807 | 251 | { 5, 1, "c0_pagegrain" }, |
59c455b3 TS |
252 | { 6, 1, "c0_srsconf0" }, |
253 | { 6, 2, "c0_srsconf1" }, | |
254 | { 6, 3, "c0_srsconf2" }, | |
255 | { 6, 4, "c0_srsconf3" }, | |
256 | { 6, 5, "c0_srsconf4" }, | |
bbcc0807 CD |
257 | { 12, 1, "c0_intctl" }, |
258 | { 12, 2, "c0_srsctl" }, | |
259 | { 12, 3, "c0_srsmap" }, | |
260 | { 15, 1, "c0_ebase" }, | |
261 | { 16, 1, "c0_config1" }, | |
262 | { 16, 2, "c0_config2" }, | |
263 | { 16, 3, "c0_config3" }, | |
264 | { 18, 1, "c0_watchlo,1" }, | |
265 | { 18, 2, "c0_watchlo,2" }, | |
266 | { 18, 3, "c0_watchlo,3" }, | |
267 | { 18, 4, "c0_watchlo,4" }, | |
268 | { 18, 5, "c0_watchlo,5" }, | |
269 | { 18, 6, "c0_watchlo,6" }, | |
270 | { 18, 7, "c0_watchlo,7" }, | |
271 | { 19, 1, "c0_watchhi,1" }, | |
272 | { 19, 2, "c0_watchhi,2" }, | |
273 | { 19, 3, "c0_watchhi,3" }, | |
274 | { 19, 4, "c0_watchhi,4" }, | |
275 | { 19, 5, "c0_watchhi,5" }, | |
276 | { 19, 6, "c0_watchhi,6" }, | |
277 | { 19, 7, "c0_watchhi,7" }, | |
278 | { 23, 1, "c0_tracecontrol" }, | |
279 | { 23, 2, "c0_tracecontrol2" }, | |
280 | { 23, 3, "c0_usertracedata" }, | |
281 | { 23, 4, "c0_tracebpc" }, | |
282 | { 25, 1, "c0_perfcnt,1" }, | |
283 | { 25, 2, "c0_perfcnt,2" }, | |
284 | { 25, 3, "c0_perfcnt,3" }, | |
285 | { 25, 4, "c0_perfcnt,4" }, | |
286 | { 25, 5, "c0_perfcnt,5" }, | |
287 | { 25, 6, "c0_perfcnt,6" }, | |
288 | { 25, 7, "c0_perfcnt,7" }, | |
289 | { 27, 1, "c0_cacheerr,1" }, | |
290 | { 27, 2, "c0_cacheerr,2" }, | |
291 | { 27, 3, "c0_cacheerr,3" }, | |
292 | { 28, 1, "c0_datalo" }, | |
293 | { 28, 2, "c0_taglo1" }, | |
294 | { 28, 3, "c0_datalo1" }, | |
295 | { 28, 4, "c0_taglo2" }, | |
296 | { 28, 5, "c0_datalo2" }, | |
297 | { 28, 6, "c0_taglo3" }, | |
298 | { 28, 7, "c0_datalo3" }, | |
299 | { 29, 1, "c0_datahi" }, | |
300 | { 29, 2, "c0_taghi1" }, | |
301 | { 29, 3, "c0_datahi1" }, | |
302 | { 29, 4, "c0_taghi2" }, | |
303 | { 29, 5, "c0_datahi2" }, | |
304 | { 29, 6, "c0_taghi3" }, | |
305 | { 29, 7, "c0_datahi3" }, | |
306 | }; | |
307 | ||
640c0ccd | 308 | /* SB-1: MIPS64 (mips_cp0_names_mips3264) with minor mods. */ |
47b0e7ad NC |
309 | static const char * const mips_cp0_names_sb1[32] = |
310 | { | |
640c0ccd CD |
311 | "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1", |
312 | "c0_context", "c0_pagemask", "c0_wired", "$7", | |
313 | "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare", | |
314 | "c0_status", "c0_cause", "c0_epc", "c0_prid", | |
315 | "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi", | |
316 | "c0_xcontext", "$21", "$22", "c0_debug", | |
317 | "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr_i", | |
318 | "c0_taglo_i", "c0_taghi_i", "c0_errorepc", "c0_desave", | |
319 | }; | |
320 | ||
47b0e7ad NC |
321 | static const struct mips_cp0sel_name mips_cp0sel_names_sb1[] = |
322 | { | |
bbcc0807 CD |
323 | { 16, 1, "c0_config1" }, |
324 | { 18, 1, "c0_watchlo,1" }, | |
325 | { 19, 1, "c0_watchhi,1" }, | |
326 | { 22, 0, "c0_perftrace" }, | |
327 | { 23, 3, "c0_edebug" }, | |
328 | { 25, 1, "c0_perfcnt,1" }, | |
329 | { 25, 2, "c0_perfcnt,2" }, | |
330 | { 25, 3, "c0_perfcnt,3" }, | |
331 | { 25, 4, "c0_perfcnt,4" }, | |
332 | { 25, 5, "c0_perfcnt,5" }, | |
333 | { 25, 6, "c0_perfcnt,6" }, | |
334 | { 25, 7, "c0_perfcnt,7" }, | |
335 | { 26, 1, "c0_buserr_pa" }, | |
336 | { 27, 1, "c0_cacheerr_d" }, | |
337 | { 27, 3, "c0_cacheerr_d_pa" }, | |
338 | { 28, 1, "c0_datalo_i" }, | |
339 | { 28, 2, "c0_taglo_d" }, | |
340 | { 28, 3, "c0_datalo_d" }, | |
341 | { 29, 1, "c0_datahi_i" }, | |
342 | { 29, 2, "c0_taghi_d" }, | |
343 | { 29, 3, "c0_datahi_d" }, | |
344 | }; | |
345 | ||
52b6b6b9 JM |
346 | /* Xlr cop0 register names. */ |
347 | static const char * const mips_cp0_names_xlr[32] = { | |
348 | "c0_index", "c0_random", "c0_entrylo0", "c0_entrylo1", | |
349 | "c0_context", "c0_pagemask", "c0_wired", "$7", | |
350 | "c0_badvaddr", "c0_count", "c0_entryhi", "c0_compare", | |
351 | "c0_status", "c0_cause", "c0_epc", "c0_prid", | |
352 | "c0_config", "c0_lladdr", "c0_watchlo", "c0_watchhi", | |
353 | "c0_xcontext", "$21", "$22", "c0_debug", | |
354 | "c0_depc", "c0_perfcnt", "c0_errctl", "c0_cacheerr_i", | |
355 | "c0_taglo_i", "c0_taghi_i", "c0_errorepc", "c0_desave", | |
356 | }; | |
357 | ||
358 | /* XLR's CP0 Select Registers. */ | |
359 | ||
360 | static const struct mips_cp0sel_name mips_cp0sel_names_xlr[] = { | |
361 | { 9, 6, "c0_extintreq" }, | |
362 | { 9, 7, "c0_extintmask" }, | |
363 | { 15, 1, "c0_ebase" }, | |
364 | { 16, 1, "c0_config1" }, | |
365 | { 16, 2, "c0_config2" }, | |
366 | { 16, 3, "c0_config3" }, | |
367 | { 16, 7, "c0_procid2" }, | |
368 | { 18, 1, "c0_watchlo,1" }, | |
369 | { 18, 2, "c0_watchlo,2" }, | |
370 | { 18, 3, "c0_watchlo,3" }, | |
371 | { 18, 4, "c0_watchlo,4" }, | |
372 | { 18, 5, "c0_watchlo,5" }, | |
373 | { 18, 6, "c0_watchlo,6" }, | |
374 | { 18, 7, "c0_watchlo,7" }, | |
375 | { 19, 1, "c0_watchhi,1" }, | |
376 | { 19, 2, "c0_watchhi,2" }, | |
377 | { 19, 3, "c0_watchhi,3" }, | |
378 | { 19, 4, "c0_watchhi,4" }, | |
379 | { 19, 5, "c0_watchhi,5" }, | |
380 | { 19, 6, "c0_watchhi,6" }, | |
381 | { 19, 7, "c0_watchhi,7" }, | |
382 | { 25, 1, "c0_perfcnt,1" }, | |
383 | { 25, 2, "c0_perfcnt,2" }, | |
384 | { 25, 3, "c0_perfcnt,3" }, | |
385 | { 25, 4, "c0_perfcnt,4" }, | |
386 | { 25, 5, "c0_perfcnt,5" }, | |
387 | { 25, 6, "c0_perfcnt,6" }, | |
388 | { 25, 7, "c0_perfcnt,7" }, | |
389 | { 27, 1, "c0_cacheerr,1" }, | |
390 | { 27, 2, "c0_cacheerr,2" }, | |
391 | { 27, 3, "c0_cacheerr,3" }, | |
392 | { 28, 1, "c0_datalo" }, | |
393 | { 29, 1, "c0_datahi" } | |
394 | }; | |
395 | ||
47b0e7ad NC |
396 | static const char * const mips_hwr_names_numeric[32] = |
397 | { | |
af7ee8bf CD |
398 | "$0", "$1", "$2", "$3", "$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" | |
402 | }; | |
403 | ||
47b0e7ad NC |
404 | static const char * const mips_hwr_names_mips3264r2[32] = |
405 | { | |
af7ee8bf CD |
406 | "hwr_cpunum", "hwr_synci_step", "hwr_cc", "hwr_ccres", |
407 | "$4", "$5", "$6", "$7", | |
408 | "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", | |
409 | "$16", "$17", "$18", "$19", "$20", "$21", "$22", "$23", | |
410 | "$24", "$25", "$26", "$27", "$28", "$29", "$30", "$31" | |
411 | }; | |
412 | ||
47b0e7ad NC |
413 | struct mips_abi_choice |
414 | { | |
415 | const char * name; | |
640c0ccd CD |
416 | const char * const *gpr_names; |
417 | const char * const *fpr_names; | |
418 | }; | |
419 | ||
47b0e7ad NC |
420 | struct mips_abi_choice mips_abi_choices[] = |
421 | { | |
640c0ccd CD |
422 | { "numeric", mips_gpr_names_numeric, mips_fpr_names_numeric }, |
423 | { "32", mips_gpr_names_oldabi, mips_fpr_names_32 }, | |
424 | { "n32", mips_gpr_names_newabi, mips_fpr_names_n32 }, | |
425 | { "64", mips_gpr_names_newabi, mips_fpr_names_64 }, | |
426 | }; | |
427 | ||
47b0e7ad NC |
428 | struct mips_arch_choice |
429 | { | |
640c0ccd CD |
430 | const char *name; |
431 | int bfd_mach_valid; | |
432 | unsigned long bfd_mach; | |
433 | int processor; | |
434 | int isa; | |
d301a56b | 435 | int ase; |
640c0ccd | 436 | const char * const *cp0_names; |
bbcc0807 CD |
437 | const struct mips_cp0sel_name *cp0sel_names; |
438 | unsigned int cp0sel_names_len; | |
af7ee8bf | 439 | const char * const *hwr_names; |
640c0ccd CD |
440 | }; |
441 | ||
47b0e7ad NC |
442 | const struct mips_arch_choice mips_arch_choices[] = |
443 | { | |
d301a56b | 444 | { "numeric", 0, 0, 0, 0, 0, |
bbcc0807 CD |
445 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
446 | ||
d301a56b | 447 | { "r3000", 1, bfd_mach_mips3000, CPU_R3000, ISA_MIPS1, 0, |
f409fd1e | 448 | mips_cp0_names_r3000, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 449 | { "r3900", 1, bfd_mach_mips3900, CPU_R3900, ISA_MIPS1, 0, |
bbcc0807 | 450 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 451 | { "r4000", 1, bfd_mach_mips4000, CPU_R4000, ISA_MIPS3, 0, |
f409fd1e | 452 | mips_cp0_names_r4000, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 453 | { "r4010", 1, bfd_mach_mips4010, CPU_R4010, ISA_MIPS2, 0, |
bbcc0807 | 454 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 455 | { "vr4100", 1, bfd_mach_mips4100, CPU_VR4100, ISA_MIPS3, 0, |
bbcc0807 | 456 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 457 | { "vr4111", 1, bfd_mach_mips4111, CPU_R4111, ISA_MIPS3, 0, |
bbcc0807 | 458 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 459 | { "vr4120", 1, bfd_mach_mips4120, CPU_VR4120, ISA_MIPS3, 0, |
bbcc0807 | 460 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 461 | { "r4300", 1, bfd_mach_mips4300, CPU_R4300, ISA_MIPS3, 0, |
bbcc0807 | 462 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 463 | { "r4400", 1, bfd_mach_mips4400, CPU_R4400, ISA_MIPS3, 0, |
f409fd1e | 464 | mips_cp0_names_r4000, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 465 | { "r4600", 1, bfd_mach_mips4600, CPU_R4600, ISA_MIPS3, 0, |
bbcc0807 | 466 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 467 | { "r4650", 1, bfd_mach_mips4650, CPU_R4650, ISA_MIPS3, 0, |
bbcc0807 | 468 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 469 | { "r5000", 1, bfd_mach_mips5000, CPU_R5000, ISA_MIPS4, 0, |
bbcc0807 | 470 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 471 | { "vr5400", 1, bfd_mach_mips5400, CPU_VR5400, ISA_MIPS4, 0, |
bbcc0807 | 472 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 473 | { "vr5500", 1, bfd_mach_mips5500, CPU_VR5500, ISA_MIPS4, 0, |
bbcc0807 | 474 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 475 | { "r5900", 1, bfd_mach_mips5900, CPU_R5900, ISA_MIPS3, 0, |
e407c74b | 476 | mips_cp0_names_r5900, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 477 | { "r6000", 1, bfd_mach_mips6000, CPU_R6000, ISA_MIPS2, 0, |
bbcc0807 | 478 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 479 | { "rm7000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4, 0, |
5a7ea749 | 480 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 481 | { "rm9000", 1, bfd_mach_mips7000, CPU_RM7000, ISA_MIPS4, 0, |
5a7ea749 | 482 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 483 | { "r8000", 1, bfd_mach_mips8000, CPU_R8000, ISA_MIPS4, 0, |
bbcc0807 | 484 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 485 | { "r10000", 1, bfd_mach_mips10000, CPU_R10000, ISA_MIPS4, 0, |
bbcc0807 | 486 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 487 | { "r12000", 1, bfd_mach_mips12000, CPU_R12000, ISA_MIPS4, 0, |
bbcc0807 | 488 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 489 | { "r14000", 1, bfd_mach_mips14000, CPU_R14000, ISA_MIPS4, 0, |
3aa3176b | 490 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 491 | { "r16000", 1, bfd_mach_mips16000, CPU_R16000, ISA_MIPS4, 0, |
3aa3176b | 492 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
d301a56b | 493 | { "mips5", 1, bfd_mach_mips5, CPU_MIPS5, ISA_MIPS5, 0, |
bbcc0807 CD |
494 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
495 | ||
640c0ccd CD |
496 | /* For stock MIPS32, disassemble all applicable MIPS-specified ASEs. |
497 | Note that MIPS-3D and MDMX are not applicable to MIPS32. (See | |
498 | _MIPS32 Architecture For Programmers Volume I: Introduction to the | |
499 | MIPS32 Architecture_ (MIPS Document Number MD00082, Revision 0.95), | |
500 | page 1. */ | |
501 | { "mips32", 1, bfd_mach_mipsisa32, CPU_MIPS32, | |
d301a56b | 502 | ISA_MIPS32, ASE_SMARTMIPS, |
bbcc0807 CD |
503 | mips_cp0_names_mips3264, |
504 | mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264), | |
505 | mips_hwr_names_numeric }, | |
506 | ||
af7ee8bf | 507 | { "mips32r2", 1, bfd_mach_mipsisa32r2, CPU_MIPS32R2, |
d301a56b | 508 | ISA_MIPS32R2, |
7f3c4072 CM |
509 | (ASE_SMARTMIPS | ASE_DSP | ASE_DSPR2 | ASE_EVA | ASE_MIPS3D |
510 | | ASE_MT | ASE_MCU | ASE_VIRT), | |
bbcc0807 CD |
511 | mips_cp0_names_mips3264r2, |
512 | mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2), | |
513 | mips_hwr_names_mips3264r2 }, | |
514 | ||
640c0ccd CD |
515 | /* For stock MIPS64, disassemble all applicable MIPS-specified ASEs. */ |
516 | { "mips64", 1, bfd_mach_mipsisa64, CPU_MIPS64, | |
d301a56b | 517 | ISA_MIPS64, ASE_MIPS3D | ASE_MDMX, |
bbcc0807 CD |
518 | mips_cp0_names_mips3264, |
519 | mips_cp0sel_names_mips3264, ARRAY_SIZE (mips_cp0sel_names_mips3264), | |
520 | mips_hwr_names_numeric }, | |
521 | ||
5f74bc13 | 522 | { "mips64r2", 1, bfd_mach_mipsisa64r2, CPU_MIPS64R2, |
d301a56b | 523 | ISA_MIPS64R2, |
7f3c4072 CM |
524 | (ASE_MIPS3D | ASE_DSP | ASE_DSPR2 | ASE_DSP64 | ASE_EVA | ASE_MT |
525 | | ASE_MDMX | ASE_MCU | ASE_VIRT | ASE_VIRT64), | |
5f74bc13 CD |
526 | mips_cp0_names_mips3264r2, |
527 | mips_cp0sel_names_mips3264r2, ARRAY_SIZE (mips_cp0sel_names_mips3264r2), | |
528 | mips_hwr_names_mips3264r2 }, | |
529 | ||
640c0ccd | 530 | { "sb1", 1, bfd_mach_mips_sb1, CPU_SB1, |
d301a56b | 531 | ISA_MIPS64 | INSN_SB1, ASE_MIPS3D, |
bbcc0807 CD |
532 | mips_cp0_names_sb1, |
533 | mips_cp0sel_names_sb1, ARRAY_SIZE (mips_cp0sel_names_sb1), | |
534 | mips_hwr_names_numeric }, | |
640c0ccd | 535 | |
350cc38d | 536 | { "loongson2e", 1, bfd_mach_mips_loongson_2e, CPU_LOONGSON_2E, |
d301a56b | 537 | ISA_MIPS3 | INSN_LOONGSON_2E, 0, mips_cp0_names_numeric, |
350cc38d MS |
538 | NULL, 0, mips_hwr_names_numeric }, |
539 | ||
540 | { "loongson2f", 1, bfd_mach_mips_loongson_2f, CPU_LOONGSON_2F, | |
d301a56b | 541 | ISA_MIPS3 | INSN_LOONGSON_2F, 0, mips_cp0_names_numeric, |
350cc38d MS |
542 | NULL, 0, mips_hwr_names_numeric }, |
543 | ||
fd503541 | 544 | { "loongson3a", 1, bfd_mach_mips_loongson_3a, CPU_LOONGSON_3A, |
d301a56b | 545 | ISA_MIPS64 | INSN_LOONGSON_3A, 0, mips_cp0_names_numeric, |
fd503541 NC |
546 | NULL, 0, mips_hwr_names_numeric }, |
547 | ||
57b592a3 | 548 | { "octeon", 1, bfd_mach_mips_octeon, CPU_OCTEON, |
d301a56b | 549 | ISA_MIPS64R2 | INSN_OCTEON, 0, mips_cp0_names_numeric, NULL, 0, |
57b592a3 AN |
550 | mips_hwr_names_numeric }, |
551 | ||
dd6a37e7 | 552 | { "octeon+", 1, bfd_mach_mips_octeonp, CPU_OCTEONP, |
d301a56b | 553 | ISA_MIPS64R2 | INSN_OCTEONP, 0, mips_cp0_names_numeric, |
432233b3 AP |
554 | NULL, 0, mips_hwr_names_numeric }, |
555 | ||
556 | { "octeon2", 1, bfd_mach_mips_octeon2, CPU_OCTEON2, | |
d301a56b | 557 | ISA_MIPS64R2 | INSN_OCTEON2, 0, mips_cp0_names_numeric, |
dd6a37e7 AP |
558 | NULL, 0, mips_hwr_names_numeric }, |
559 | ||
52b6b6b9 | 560 | { "xlr", 1, bfd_mach_mips_xlr, CPU_XLR, |
d301a56b | 561 | ISA_MIPS64 | INSN_XLR, 0, |
52b6b6b9 JM |
562 | mips_cp0_names_xlr, |
563 | mips_cp0sel_names_xlr, ARRAY_SIZE (mips_cp0sel_names_xlr), | |
564 | mips_hwr_names_numeric }, | |
565 | ||
55a36193 MK |
566 | /* XLP is mostly like XLR, with the prominent exception it is being |
567 | MIPS64R2. */ | |
568 | { "xlp", 1, bfd_mach_mips_xlr, CPU_XLR, | |
d301a56b | 569 | ISA_MIPS64R2 | INSN_XLR, 0, |
55a36193 MK |
570 | mips_cp0_names_xlr, |
571 | mips_cp0sel_names_xlr, ARRAY_SIZE (mips_cp0sel_names_xlr), | |
572 | mips_hwr_names_numeric }, | |
573 | ||
640c0ccd CD |
574 | /* This entry, mips16, is here only for ISA/processor selection; do |
575 | not print its name. */ | |
d301a56b | 576 | { "", 1, bfd_mach_mips16, CPU_MIPS16, ISA_MIPS3, 0, |
bbcc0807 | 577 | mips_cp0_names_numeric, NULL, 0, mips_hwr_names_numeric }, |
640c0ccd CD |
578 | }; |
579 | ||
580 | /* ISA and processor type to disassemble for, and register names to use. | |
581 | set_default_mips_dis_options and parse_mips_dis_options fill in these | |
582 | values. */ | |
583 | static int mips_processor; | |
584 | static int mips_isa; | |
d301a56b | 585 | static int mips_ase; |
df58fc94 | 586 | static int micromips_ase; |
640c0ccd CD |
587 | static const char * const *mips_gpr_names; |
588 | static const char * const *mips_fpr_names; | |
589 | static const char * const *mips_cp0_names; | |
bbcc0807 CD |
590 | static const struct mips_cp0sel_name *mips_cp0sel_names; |
591 | static int mips_cp0sel_names_len; | |
af7ee8bf | 592 | static const char * const *mips_hwr_names; |
640c0ccd | 593 | |
986e18a5 | 594 | /* Other options */ |
47b0e7ad | 595 | static int no_aliases; /* If set disassemble as most general inst. */ |
640c0ccd CD |
596 | \f |
597 | static const struct mips_abi_choice * | |
47b0e7ad | 598 | choose_abi_by_name (const char *name, unsigned int namelen) |
640c0ccd CD |
599 | { |
600 | const struct mips_abi_choice *c; | |
601 | unsigned int i; | |
602 | ||
603 | for (i = 0, c = NULL; i < ARRAY_SIZE (mips_abi_choices) && c == NULL; i++) | |
47b0e7ad NC |
604 | if (strncmp (mips_abi_choices[i].name, name, namelen) == 0 |
605 | && strlen (mips_abi_choices[i].name) == namelen) | |
606 | c = &mips_abi_choices[i]; | |
607 | ||
640c0ccd CD |
608 | return c; |
609 | } | |
610 | ||
611 | static const struct mips_arch_choice * | |
47b0e7ad | 612 | choose_arch_by_name (const char *name, unsigned int namelen) |
640c0ccd CD |
613 | { |
614 | const struct mips_arch_choice *c = NULL; | |
615 | unsigned int i; | |
616 | ||
617 | for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++) | |
47b0e7ad NC |
618 | if (strncmp (mips_arch_choices[i].name, name, namelen) == 0 |
619 | && strlen (mips_arch_choices[i].name) == namelen) | |
620 | c = &mips_arch_choices[i]; | |
621 | ||
640c0ccd CD |
622 | return c; |
623 | } | |
624 | ||
625 | static const struct mips_arch_choice * | |
47b0e7ad | 626 | choose_arch_by_number (unsigned long mach) |
640c0ccd CD |
627 | { |
628 | static unsigned long hint_bfd_mach; | |
629 | static const struct mips_arch_choice *hint_arch_choice; | |
630 | const struct mips_arch_choice *c; | |
631 | unsigned int i; | |
632 | ||
633 | /* We optimize this because even if the user specifies no | |
634 | flags, this will be done for every instruction! */ | |
635 | if (hint_bfd_mach == mach | |
636 | && hint_arch_choice != NULL | |
637 | && hint_arch_choice->bfd_mach == hint_bfd_mach) | |
638 | return hint_arch_choice; | |
639 | ||
640 | for (i = 0, c = NULL; i < ARRAY_SIZE (mips_arch_choices) && c == NULL; i++) | |
641 | { | |
642 | if (mips_arch_choices[i].bfd_mach_valid | |
643 | && mips_arch_choices[i].bfd_mach == mach) | |
644 | { | |
645 | c = &mips_arch_choices[i]; | |
646 | hint_bfd_mach = mach; | |
647 | hint_arch_choice = c; | |
648 | } | |
649 | } | |
650 | return c; | |
651 | } | |
652 | ||
47b0e7ad NC |
653 | /* Check if the object uses NewABI conventions. */ |
654 | ||
655 | static int | |
656 | is_newabi (Elf_Internal_Ehdr *header) | |
657 | { | |
658 | /* There are no old-style ABIs which use 64-bit ELF. */ | |
659 | if (header->e_ident[EI_CLASS] == ELFCLASS64) | |
660 | return 1; | |
661 | ||
662 | /* If a 32-bit ELF file, n32 is a new-style ABI. */ | |
663 | if ((header->e_flags & EF_MIPS_ABI2) != 0) | |
664 | return 1; | |
665 | ||
666 | return 0; | |
667 | } | |
668 | ||
df58fc94 RS |
669 | /* Check if the object has microMIPS ASE code. */ |
670 | ||
671 | static int | |
672 | is_micromips (Elf_Internal_Ehdr *header) | |
673 | { | |
674 | if ((header->e_flags & EF_MIPS_ARCH_ASE_MICROMIPS) != 0) | |
675 | return 1; | |
676 | ||
677 | return 0; | |
678 | } | |
679 | ||
47b0e7ad NC |
680 | static void |
681 | set_default_mips_dis_options (struct disassemble_info *info) | |
640c0ccd CD |
682 | { |
683 | const struct mips_arch_choice *chosen_arch; | |
684 | ||
df58fc94 RS |
685 | /* Defaults: mipsIII/r3000 (?!), no microMIPS ASE (any compressed code |
686 | is MIPS16 ASE) (o)32-style ("oldabi") GPR names, and numeric FPR, | |
687 | CP0 register, and HWR names. */ | |
640c0ccd | 688 | mips_isa = ISA_MIPS3; |
df58fc94 RS |
689 | mips_processor = CPU_R3000; |
690 | micromips_ase = 0; | |
d301a56b | 691 | mips_ase = 0; |
640c0ccd CD |
692 | mips_gpr_names = mips_gpr_names_oldabi; |
693 | mips_fpr_names = mips_fpr_names_numeric; | |
694 | mips_cp0_names = mips_cp0_names_numeric; | |
bbcc0807 CD |
695 | mips_cp0sel_names = NULL; |
696 | mips_cp0sel_names_len = 0; | |
af7ee8bf | 697 | mips_hwr_names = mips_hwr_names_numeric; |
986e18a5 | 698 | no_aliases = 0; |
640c0ccd | 699 | |
df58fc94 | 700 | /* Update settings according to the ELF file header flags. */ |
fec06546 | 701 | if (info->flavour == bfd_target_elf_flavour && info->section != NULL) |
640c0ccd CD |
702 | { |
703 | Elf_Internal_Ehdr *header; | |
704 | ||
fec06546 | 705 | header = elf_elfheader (info->section->owner); |
df58fc94 | 706 | /* If an ELF "newabi" binary, use the n32/(n)64 GPR names. */ |
640c0ccd CD |
707 | if (is_newabi (header)) |
708 | mips_gpr_names = mips_gpr_names_newabi; | |
df58fc94 RS |
709 | /* If a microMIPS binary, then don't use MIPS16 bindings. */ |
710 | micromips_ase = is_micromips (header); | |
640c0ccd CD |
711 | } |
712 | ||
713 | /* Set ISA, architecture, and cp0 register names as best we can. */ | |
714 | #if ! SYMTAB_AVAILABLE | |
715 | /* This is running out on a target machine, not in a host tool. | |
716 | FIXME: Where does mips_target_info come from? */ | |
717 | target_processor = mips_target_info.processor; | |
718 | mips_isa = mips_target_info.isa; | |
d301a56b | 719 | mips_ase = mips_target_info.ase; |
640c0ccd CD |
720 | #else |
721 | chosen_arch = choose_arch_by_number (info->mach); | |
722 | if (chosen_arch != NULL) | |
723 | { | |
724 | mips_processor = chosen_arch->processor; | |
725 | mips_isa = chosen_arch->isa; | |
d301a56b | 726 | mips_ase = chosen_arch->ase; |
bbcc0807 CD |
727 | mips_cp0_names = chosen_arch->cp0_names; |
728 | mips_cp0sel_names = chosen_arch->cp0sel_names; | |
729 | mips_cp0sel_names_len = chosen_arch->cp0sel_names_len; | |
730 | mips_hwr_names = chosen_arch->hwr_names; | |
640c0ccd CD |
731 | } |
732 | #endif | |
733 | } | |
734 | ||
47b0e7ad NC |
735 | static void |
736 | parse_mips_dis_option (const char *option, unsigned int len) | |
640c0ccd CD |
737 | { |
738 | unsigned int i, optionlen, vallen; | |
739 | const char *val; | |
740 | const struct mips_abi_choice *chosen_abi; | |
741 | const struct mips_arch_choice *chosen_arch; | |
742 | ||
986e18a5 | 743 | /* Try to match options that are simple flags */ |
0112cd26 | 744 | if (CONST_STRNEQ (option, "no-aliases")) |
986e18a5 FF |
745 | { |
746 | no_aliases = 1; | |
747 | return; | |
748 | } | |
b015e599 AP |
749 | |
750 | if (CONST_STRNEQ (option, "virt")) | |
751 | { | |
d301a56b | 752 | mips_ase |= ASE_VIRT; |
b015e599 | 753 | if (mips_isa & ISA_MIPS64R2) |
d301a56b | 754 | mips_ase |= ASE_VIRT64; |
b015e599 AP |
755 | return; |
756 | } | |
986e18a5 | 757 | |
640c0ccd CD |
758 | /* Look for the = that delimits the end of the option name. */ |
759 | for (i = 0; i < len; i++) | |
47b0e7ad NC |
760 | if (option[i] == '=') |
761 | break; | |
762 | ||
640c0ccd CD |
763 | if (i == 0) /* Invalid option: no name before '='. */ |
764 | return; | |
765 | if (i == len) /* Invalid option: no '='. */ | |
766 | return; | |
767 | if (i == (len - 1)) /* Invalid option: no value after '='. */ | |
768 | return; | |
769 | ||
770 | optionlen = i; | |
771 | val = option + (optionlen + 1); | |
772 | vallen = len - (optionlen + 1); | |
773 | ||
47b0e7ad NC |
774 | if (strncmp ("gpr-names", option, optionlen) == 0 |
775 | && strlen ("gpr-names") == optionlen) | |
640c0ccd CD |
776 | { |
777 | chosen_abi = choose_abi_by_name (val, vallen); | |
bbcc0807 | 778 | if (chosen_abi != NULL) |
640c0ccd CD |
779 | mips_gpr_names = chosen_abi->gpr_names; |
780 | return; | |
781 | } | |
782 | ||
47b0e7ad NC |
783 | if (strncmp ("fpr-names", option, optionlen) == 0 |
784 | && strlen ("fpr-names") == optionlen) | |
640c0ccd CD |
785 | { |
786 | chosen_abi = choose_abi_by_name (val, vallen); | |
bbcc0807 | 787 | if (chosen_abi != NULL) |
640c0ccd CD |
788 | mips_fpr_names = chosen_abi->fpr_names; |
789 | return; | |
790 | } | |
791 | ||
47b0e7ad NC |
792 | if (strncmp ("cp0-names", option, optionlen) == 0 |
793 | && strlen ("cp0-names") == optionlen) | |
640c0ccd CD |
794 | { |
795 | chosen_arch = choose_arch_by_name (val, vallen); | |
bbcc0807 CD |
796 | if (chosen_arch != NULL) |
797 | { | |
798 | mips_cp0_names = chosen_arch->cp0_names; | |
799 | mips_cp0sel_names = chosen_arch->cp0sel_names; | |
800 | mips_cp0sel_names_len = chosen_arch->cp0sel_names_len; | |
801 | } | |
640c0ccd CD |
802 | return; |
803 | } | |
804 | ||
47b0e7ad NC |
805 | if (strncmp ("hwr-names", option, optionlen) == 0 |
806 | && strlen ("hwr-names") == optionlen) | |
af7ee8bf CD |
807 | { |
808 | chosen_arch = choose_arch_by_name (val, vallen); | |
bbcc0807 | 809 | if (chosen_arch != NULL) |
af7ee8bf CD |
810 | mips_hwr_names = chosen_arch->hwr_names; |
811 | return; | |
812 | } | |
813 | ||
47b0e7ad NC |
814 | if (strncmp ("reg-names", option, optionlen) == 0 |
815 | && strlen ("reg-names") == optionlen) | |
640c0ccd CD |
816 | { |
817 | /* We check both ABI and ARCH here unconditionally, so | |
818 | that "numeric" will do the desirable thing: select | |
819 | numeric register names for all registers. Other than | |
820 | that, a given name probably won't match both. */ | |
821 | chosen_abi = choose_abi_by_name (val, vallen); | |
822 | if (chosen_abi != NULL) | |
823 | { | |
bbcc0807 CD |
824 | mips_gpr_names = chosen_abi->gpr_names; |
825 | mips_fpr_names = chosen_abi->fpr_names; | |
640c0ccd CD |
826 | } |
827 | chosen_arch = choose_arch_by_name (val, vallen); | |
828 | if (chosen_arch != NULL) | |
829 | { | |
bbcc0807 CD |
830 | mips_cp0_names = chosen_arch->cp0_names; |
831 | mips_cp0sel_names = chosen_arch->cp0sel_names; | |
832 | mips_cp0sel_names_len = chosen_arch->cp0sel_names_len; | |
833 | mips_hwr_names = chosen_arch->hwr_names; | |
640c0ccd CD |
834 | } |
835 | return; | |
836 | } | |
837 | ||
838 | /* Invalid option. */ | |
839 | } | |
840 | ||
47b0e7ad NC |
841 | static void |
842 | parse_mips_dis_options (const char *options) | |
640c0ccd CD |
843 | { |
844 | const char *option_end; | |
845 | ||
846 | if (options == NULL) | |
847 | return; | |
848 | ||
849 | while (*options != '\0') | |
850 | { | |
851 | /* Skip empty options. */ | |
852 | if (*options == ',') | |
853 | { | |
854 | options++; | |
855 | continue; | |
856 | } | |
857 | ||
858 | /* We know that *options is neither NUL or a comma. */ | |
859 | option_end = options + 1; | |
860 | while (*option_end != ',' && *option_end != '\0') | |
861 | option_end++; | |
862 | ||
863 | parse_mips_dis_option (options, option_end - options); | |
864 | ||
865 | /* Go on to the next one. If option_end points to a comma, it | |
866 | will be skipped above. */ | |
867 | options = option_end; | |
868 | } | |
869 | } | |
870 | ||
bbcc0807 | 871 | static const struct mips_cp0sel_name * |
47b0e7ad NC |
872 | lookup_mips_cp0sel_name (const struct mips_cp0sel_name *names, |
873 | unsigned int len, | |
874 | unsigned int cp0reg, | |
875 | unsigned int sel) | |
bbcc0807 CD |
876 | { |
877 | unsigned int i; | |
878 | ||
879 | for (i = 0; i < len; i++) | |
880 | if (names[i].cp0reg == cp0reg && names[i].sel == sel) | |
881 | return &names[i]; | |
882 | return NULL; | |
883 | } | |
ab902481 RS |
884 | |
885 | /* Print register REGNO, of type TYPE, for instruction OPCODE. */ | |
aa5f19f2 | 886 | |
794ac9d0 | 887 | static void |
ab902481 RS |
888 | print_reg (struct disassemble_info *info, const struct mips_opcode *opcode, |
889 | enum mips_reg_operand_type type, int regno) | |
252b5132 | 890 | { |
ab902481 RS |
891 | switch (type) |
892 | { | |
893 | case OP_REG_GP: | |
894 | info->fprintf_func (info->stream, "%s", mips_gpr_names[regno]); | |
895 | break; | |
440cc0bc | 896 | |
ab902481 RS |
897 | case OP_REG_FP: |
898 | info->fprintf_func (info->stream, "%s", mips_fpr_names[regno]); | |
899 | break; | |
252b5132 | 900 | |
ab902481 RS |
901 | case OP_REG_CCC: |
902 | if (opcode->pinfo & (FP_D | FP_S)) | |
903 | info->fprintf_func (info->stream, "$fcc%d", regno); | |
904 | else | |
905 | info->fprintf_func (info->stream, "$cc%d", regno); | |
906 | break; | |
794ac9d0 | 907 | |
ab902481 RS |
908 | case OP_REG_VEC: |
909 | if (opcode->membership & INSN_5400) | |
910 | info->fprintf_func (info->stream, "$f%d", regno); | |
911 | else | |
912 | info->fprintf_func (info->stream, "$v%d", regno); | |
913 | break; | |
794ac9d0 | 914 | |
ab902481 RS |
915 | case OP_REG_ACC: |
916 | info->fprintf_func (info->stream, "$ac%d", regno); | |
917 | break; | |
794ac9d0 | 918 | |
ab902481 RS |
919 | case OP_REG_COPRO: |
920 | if (opcode->name[strlen (opcode->name) - 1] == '0') | |
921 | info->fprintf_func (info->stream, "%s", mips_cp0_names[regno]); | |
922 | else | |
923 | info->fprintf_func (info->stream, "$%d", regno); | |
924 | break; | |
8b082fb1 | 925 | |
ab902481 RS |
926 | case OP_REG_HW: |
927 | info->fprintf_func (info->stream, "%s", mips_hwr_names[regno]); | |
928 | break; | |
929 | } | |
930 | } | |
931 | \f | |
932 | /* Used to track the state carried over from previous operands in | |
933 | an instruction. */ | |
934 | struct mips_print_arg_state { | |
935 | /* The value of the last OP_INT seen. We only use this for OP_MSB, | |
936 | where the value is known to be unsigned and small. */ | |
937 | unsigned int last_int; | |
938 | ||
939 | /* The type and number of the last OP_REG seen. We only use this for | |
940 | OP_REPEAT_DEST_REG and OP_REPEAT_PREV_REG. */ | |
941 | enum mips_reg_operand_type last_reg_type; | |
942 | unsigned int last_regno; | |
943 | }; | |
fd25c5a9 | 944 | |
ab902481 | 945 | /* Initialize STATE for the start of an instruction. */ |
fd25c5a9 | 946 | |
ab902481 RS |
947 | static inline void |
948 | init_print_arg_state (struct mips_print_arg_state *state) | |
949 | { | |
950 | memset (state, 0, sizeof (*state)); | |
951 | } | |
fd25c5a9 | 952 | |
ab902481 RS |
953 | /* Print operand OPERAND of OPCODE, using STATE to track inter-operand state. |
954 | UVAL is the encoding of the operand (shifted into bit 0) and BASE_PC is | |
955 | the base address for OP_PCREL operands. */ | |
fd25c5a9 | 956 | |
ab902481 RS |
957 | static void |
958 | print_insn_arg (struct disassemble_info *info, | |
959 | struct mips_print_arg_state *state, | |
960 | const struct mips_opcode *opcode, | |
961 | const struct mips_operand *operand, | |
962 | bfd_vma base_pc, | |
963 | unsigned int uval) | |
964 | { | |
965 | const fprintf_ftype infprintf = info->fprintf_func; | |
966 | void *is = info->stream; | |
fd25c5a9 | 967 | |
ab902481 RS |
968 | switch (operand->type) |
969 | { | |
970 | case OP_INT: | |
971 | { | |
972 | const struct mips_int_operand *int_op; | |
fd25c5a9 | 973 | |
ab902481 RS |
974 | int_op = (const struct mips_int_operand *) operand; |
975 | uval = mips_decode_int_operand (int_op, uval); | |
976 | state->last_int = uval; | |
977 | if (int_op->print_hex) | |
978 | infprintf (is, "0x%x", uval); | |
979 | else | |
980 | infprintf (is, "%d", uval); | |
981 | } | |
982 | break; | |
fd25c5a9 | 983 | |
ab902481 RS |
984 | case OP_MAPPED_INT: |
985 | { | |
986 | const struct mips_mapped_int_operand *mint_op; | |
fd25c5a9 | 987 | |
ab902481 RS |
988 | mint_op = (const struct mips_mapped_int_operand *) operand; |
989 | uval = mint_op->int_map[uval]; | |
990 | state->last_int = uval; | |
991 | if (mint_op->print_hex) | |
992 | infprintf (is, "0x%x", uval); | |
993 | else | |
994 | infprintf (is, "%d", uval); | |
995 | } | |
996 | break; | |
fd25c5a9 | 997 | |
ab902481 RS |
998 | case OP_MSB: |
999 | { | |
1000 | const struct mips_msb_operand *msb_op; | |
dec0624d | 1001 | |
ab902481 RS |
1002 | msb_op = (const struct mips_msb_operand *) operand; |
1003 | uval += msb_op->bias; | |
1004 | if (msb_op->add_lsb) | |
1005 | uval -= state->last_int; | |
1006 | infprintf (is, "0x%x", uval); | |
1007 | } | |
1008 | break; | |
dec0624d | 1009 | |
ab902481 RS |
1010 | case OP_REG: |
1011 | { | |
1012 | const struct mips_reg_operand *reg_op; | |
fd25c5a9 | 1013 | |
ab902481 RS |
1014 | reg_op = (const struct mips_reg_operand *) operand; |
1015 | if (reg_op->reg_map) | |
1016 | uval = reg_op->reg_map[uval]; | |
1017 | print_reg (info, opcode, reg_op->reg_type, uval); | |
fd25c5a9 | 1018 | |
ab902481 RS |
1019 | state->last_reg_type = reg_op->reg_type; |
1020 | state->last_regno = uval; | |
1021 | } | |
1022 | break; | |
61cc0267 | 1023 | |
ab902481 RS |
1024 | case OP_REG_PAIR: |
1025 | { | |
1026 | const struct mips_reg_pair_operand *pair_op; | |
1027 | ||
1028 | pair_op = (const struct mips_reg_pair_operand *) operand; | |
1029 | print_reg (info, opcode, pair_op->reg_type, | |
1030 | pair_op->reg1_map[uval]); | |
1031 | infprintf (is, ","); | |
1032 | print_reg (info, opcode, pair_op->reg_type, | |
1033 | pair_op->reg2_map[uval]); | |
1034 | } | |
1035 | break; | |
61cc0267 | 1036 | |
ab902481 RS |
1037 | case OP_PCREL: |
1038 | { | |
1039 | const struct mips_pcrel_operand *pcrel_op; | |
61cc0267 | 1040 | |
ab902481 RS |
1041 | pcrel_op = (const struct mips_pcrel_operand *) operand; |
1042 | info->target = mips_decode_pcrel_operand (pcrel_op, base_pc, uval); | |
61cc0267 | 1043 | |
ab902481 RS |
1044 | /* Preserve the ISA bit for the GDB disassembler, |
1045 | otherwise clear it. */ | |
1046 | if (info->flavour != bfd_target_unknown_flavour) | |
1047 | info->target &= -2; | |
61cc0267 | 1048 | |
ab902481 RS |
1049 | (*info->print_address_func) (info->target, info); |
1050 | } | |
1051 | break; | |
794ac9d0 | 1052 | |
ab902481 RS |
1053 | case OP_PERF_REG: |
1054 | infprintf (is, "%d", uval); | |
1055 | break; | |
794ac9d0 | 1056 | |
ab902481 RS |
1057 | case OP_ADDIUSP_INT: |
1058 | { | |
1059 | int sval; | |
794ac9d0 | 1060 | |
ab902481 RS |
1061 | sval = mips_signed_operand (operand, uval) * 4; |
1062 | if (sval >= -8 && sval < 8) | |
1063 | sval ^= 0x400; | |
1064 | infprintf (is, "%d", sval); | |
1065 | break; | |
1066 | } | |
794ac9d0 | 1067 | |
ab902481 RS |
1068 | case OP_CLO_CLZ_DEST: |
1069 | { | |
1070 | unsigned int reg1, reg2; | |
1071 | ||
1072 | reg1 = uval & 31; | |
1073 | reg2 = uval >> 5; | |
1074 | /* If one is zero use the other. */ | |
1075 | if (reg1 == reg2 || reg2 == 0) | |
1076 | infprintf (is, "%s", mips_gpr_names[reg1]); | |
1077 | else if (reg1 == 0) | |
1078 | infprintf (is, "%s", mips_gpr_names[reg2]); | |
1079 | else | |
1080 | /* Bogus, result depends on processor. */ | |
1081 | infprintf (is, "%s or %s", mips_gpr_names[reg1], | |
1082 | mips_gpr_names[reg2]); | |
1083 | } | |
1084 | break; | |
794ac9d0 | 1085 | |
ab902481 RS |
1086 | case OP_LWM_SWM_LIST: |
1087 | if (operand->size == 2) | |
1088 | { | |
1089 | if (uval == 0) | |
1090 | infprintf (is, "%s,%s", | |
1091 | mips_gpr_names[16], | |
1092 | mips_gpr_names[31]); | |
1093 | else | |
1094 | infprintf (is, "%s-%s,%s", | |
1095 | mips_gpr_names[16], | |
1096 | mips_gpr_names[16 + uval], | |
1097 | mips_gpr_names[31]); | |
1098 | } | |
1099 | else | |
1100 | { | |
1101 | int s_reg_encode; | |
794ac9d0 | 1102 | |
ab902481 RS |
1103 | s_reg_encode = uval & 0xf; |
1104 | if (s_reg_encode != 0) | |
1105 | { | |
1106 | if (s_reg_encode == 1) | |
1107 | infprintf (is, "%s", mips_gpr_names[16]); | |
1108 | else if (s_reg_encode < 9) | |
1109 | infprintf (is, "%s-%s", | |
1110 | mips_gpr_names[16], | |
1111 | mips_gpr_names[15 + s_reg_encode]); | |
1112 | else if (s_reg_encode == 9) | |
1113 | infprintf (is, "%s-%s,%s", | |
1114 | mips_gpr_names[16], | |
1115 | mips_gpr_names[23], | |
1116 | mips_gpr_names[30]); | |
1117 | else | |
1118 | infprintf (is, "UNKNOWN"); | |
1119 | } | |
794ac9d0 | 1120 | |
ab902481 RS |
1121 | if (uval & 0x10) /* For ra. */ |
1122 | { | |
1123 | if (s_reg_encode == 0) | |
1124 | infprintf (is, "%s", mips_gpr_names[31]); | |
1125 | else | |
1126 | infprintf (is, ",%s", mips_gpr_names[31]); | |
1127 | } | |
1128 | } | |
1129 | break; | |
794ac9d0 | 1130 | |
ab902481 RS |
1131 | case OP_MDMX_IMM_REG: |
1132 | { | |
1133 | unsigned int vsel; | |
794ac9d0 | 1134 | |
ab902481 RS |
1135 | vsel = uval >> 5; |
1136 | uval &= 31; | |
1137 | if ((vsel & 0x10) == 0) | |
794ac9d0 | 1138 | { |
ab902481 RS |
1139 | int fmt; |
1140 | ||
1141 | vsel &= 0x0f; | |
1142 | for (fmt = 0; fmt < 3; fmt++, vsel >>= 1) | |
1143 | if ((vsel & 1) == 0) | |
1144 | break; | |
1145 | print_reg (info, opcode, OP_REG_VEC, uval); | |
1146 | infprintf (is, "[%d]", vsel >> 1); | |
794ac9d0 | 1147 | } |
ab902481 RS |
1148 | else if ((vsel & 0x08) == 0) |
1149 | print_reg (info, opcode, OP_REG_VEC, uval); | |
1150 | else | |
1151 | infprintf (is, "0x%x", uval); | |
1152 | } | |
1153 | break; | |
794ac9d0 | 1154 | |
ab902481 RS |
1155 | case OP_REPEAT_PREV_REG: |
1156 | print_reg (info, opcode, state->last_reg_type, state->last_regno); | |
1157 | break; | |
794ac9d0 | 1158 | |
ab902481 RS |
1159 | case OP_REPEAT_DEST_REG: |
1160 | /* Should always match OP_REPEAT_PREV_REG first. */ | |
1161 | abort (); | |
794ac9d0 | 1162 | |
ab902481 RS |
1163 | case OP_PC: |
1164 | infprintf (is, "$pc"); | |
1165 | break; | |
1166 | } | |
1167 | } | |
794ac9d0 | 1168 | |
ab902481 RS |
1169 | /* Print the arguments for INSN, which is described by OPCODE. |
1170 | Use DECODE_OPERAND to get the encoding of each operand. Use BASE_PC | |
1171 | as the base of OP_PCREL operands. */ | |
af7ee8bf | 1172 | |
ab902481 RS |
1173 | static void |
1174 | print_insn_args (struct disassemble_info *info, | |
1175 | const struct mips_opcode *opcode, | |
1176 | const struct mips_operand *(*decode_operand) (const char *), | |
1177 | unsigned int insn, bfd_vma base_pc) | |
1178 | { | |
1179 | const fprintf_ftype infprintf = info->fprintf_func; | |
1180 | void *is = info->stream; | |
1181 | struct mips_print_arg_state state; | |
1182 | const struct mips_operand *operand; | |
1183 | const char *s; | |
794ac9d0 | 1184 | |
ab902481 RS |
1185 | init_print_arg_state (&state); |
1186 | for (s = opcode->args; *s; ++s) | |
1187 | { | |
1188 | switch (*s) | |
1189 | { | |
1190 | case ',': | |
1191 | case '(': | |
1192 | case ')': | |
1193 | infprintf (is, "%c", *s); | |
794ac9d0 CD |
1194 | break; |
1195 | ||
ab902481 RS |
1196 | default: |
1197 | operand = decode_operand (s); | |
1198 | if (!operand) | |
fa7616a4 | 1199 | { |
ab902481 RS |
1200 | /* xgettext:c-format */ |
1201 | infprintf (is, | |
1202 | _("# internal error, undefined operand in `%s %s'"), | |
1203 | opcode->name, opcode->args); | |
1204 | return; | |
1205 | } | |
1206 | if (operand->type == OP_REG | |
1207 | && s[1] == ',' | |
1208 | && s[2] == 'H' | |
1209 | && opcode->name[strlen (opcode->name) - 1] == '0') | |
1210 | { | |
1211 | /* Coprocessor register 0 with sel field (MT ASE). */ | |
1212 | const struct mips_cp0sel_name *n; | |
1213 | unsigned int reg, sel; | |
1214 | ||
1215 | reg = mips_extract_operand (operand, insn); | |
1216 | s += 2; | |
1217 | operand = decode_operand (s); | |
1218 | sel = mips_extract_operand (operand, insn); | |
1219 | ||
1220 | /* CP0 register including 'sel' code for mftc0, to be | |
1221 | printed textually if known. If not known, print both | |
1222 | CP0 register name and sel numerically since CP0 register | |
1223 | with sel 0 may have a name unrelated to register being | |
1224 | printed. */ | |
1225 | n = lookup_mips_cp0sel_name (mips_cp0sel_names, | |
1226 | mips_cp0sel_names_len, | |
1227 | reg, sel); | |
1228 | if (n != NULL) | |
1229 | infprintf (is, "%s", n->name); | |
fa7616a4 | 1230 | else |
ab902481 | 1231 | infprintf (is, "$%d,%d", reg, sel); |
fa7616a4 | 1232 | } |
794ac9d0 | 1233 | else |
ab902481 RS |
1234 | print_insn_arg (info, &state, opcode, operand, base_pc, |
1235 | mips_extract_operand (operand, insn)); | |
1236 | if (*s == 'm' || *s == '+') | |
1237 | ++s; | |
794ac9d0 | 1238 | break; |
af7ee8bf | 1239 | } |
252b5132 RH |
1240 | } |
1241 | } | |
1242 | \f | |
252b5132 RH |
1243 | /* Print the mips instruction at address MEMADDR in debugged memory, |
1244 | on using INFO. Returns length of the instruction, in bytes, which is | |
aa5f19f2 | 1245 | always INSNLEN. BIGENDIAN must be 1 if this is big-endian code, 0 if |
252b5132 RH |
1246 | this is little-endian code. */ |
1247 | ||
1248 | static int | |
47b0e7ad | 1249 | print_insn_mips (bfd_vma memaddr, |
fc8c4fd1 | 1250 | int word, |
47b0e7ad | 1251 | struct disassemble_info *info) |
252b5132 | 1252 | { |
ab902481 RS |
1253 | #define GET_OP(insn, field) \ |
1254 | (((insn) >> OP_SH_##field) & OP_MASK_##field) | |
fc8c4fd1 MR |
1255 | static const struct mips_opcode *mips_hash[OP_MASK_OP + 1]; |
1256 | const fprintf_ftype infprintf = info->fprintf_func; | |
47b0e7ad | 1257 | const struct mips_opcode *op; |
b34976b6 | 1258 | static bfd_boolean init = 0; |
fc8c4fd1 | 1259 | void *is = info->stream; |
252b5132 RH |
1260 | |
1261 | /* Build a hash table to shorten the search time. */ | |
1262 | if (! init) | |
1263 | { | |
1264 | unsigned int i; | |
1265 | ||
1266 | for (i = 0; i <= OP_MASK_OP; i++) | |
1267 | { | |
1268 | for (op = mips_opcodes; op < &mips_opcodes[NUMOPCODES]; op++) | |
1269 | { | |
986e18a5 | 1270 | if (op->pinfo == INSN_MACRO |
9e836e3d | 1271 | || (no_aliases && (op->pinfo2 & INSN2_ALIAS))) |
252b5132 | 1272 | continue; |
fc8c4fd1 | 1273 | if (i == GET_OP (op->match, OP)) |
252b5132 RH |
1274 | { |
1275 | mips_hash[i] = op; | |
1276 | break; | |
1277 | } | |
1278 | } | |
7f6621cd | 1279 | } |
252b5132 RH |
1280 | |
1281 | init = 1; | |
1282 | } | |
1283 | ||
aa5f19f2 | 1284 | info->bytes_per_chunk = INSNLEN; |
252b5132 | 1285 | info->display_endian = info->endian; |
9bb28706 CD |
1286 | info->insn_info_valid = 1; |
1287 | info->branch_delay_insns = 0; | |
def7143b | 1288 | info->data_size = 0; |
9bb28706 CD |
1289 | info->insn_type = dis_nonbranch; |
1290 | info->target = 0; | |
1291 | info->target2 = 0; | |
252b5132 | 1292 | |
fc8c4fd1 | 1293 | op = mips_hash[GET_OP (word, OP)]; |
252b5132 RH |
1294 | if (op != NULL) |
1295 | { | |
1296 | for (; op < &mips_opcodes[NUMOPCODES]; op++) | |
1297 | { | |
986e18a5 | 1298 | if (op->pinfo != INSN_MACRO |
9e836e3d | 1299 | && !(no_aliases && (op->pinfo2 & INSN2_ALIAS)) |
986e18a5 | 1300 | && (word & op->mask) == op->match) |
252b5132 | 1301 | { |
3396de36 | 1302 | /* We always allow to disassemble the jalx instruction. */ |
d301a56b | 1303 | if (!opcode_is_member (op, mips_isa, mips_ase, mips_processor) |
3396de36 | 1304 | && strcmp (op->name, "jalx")) |
252b5132 RH |
1305 | continue; |
1306 | ||
9bb28706 CD |
1307 | /* Figure out instruction type and branch delay information. */ |
1308 | if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0) | |
1309 | { | |
c680e7f6 MR |
1310 | if ((op->pinfo & (INSN_WRITE_GPR_31 |
1311 | | INSN_WRITE_GPR_D)) != 0) | |
9bb28706 CD |
1312 | info->insn_type = dis_jsr; |
1313 | else | |
1314 | info->insn_type = dis_branch; | |
1315 | info->branch_delay_insns = 1; | |
1316 | } | |
1317 | else if ((op->pinfo & (INSN_COND_BRANCH_DELAY | |
1318 | | INSN_COND_BRANCH_LIKELY)) != 0) | |
1319 | { | |
c680e7f6 | 1320 | if ((op->pinfo & INSN_WRITE_GPR_31) != 0) |
9bb28706 CD |
1321 | info->insn_type = dis_condjsr; |
1322 | else | |
1323 | info->insn_type = dis_condbranch; | |
1324 | info->branch_delay_insns = 1; | |
1325 | } | |
1326 | else if ((op->pinfo & (INSN_STORE_MEMORY | |
1327 | | INSN_LOAD_MEMORY_DELAY)) != 0) | |
1328 | info->insn_type = dis_dref; | |
1329 | ||
fc8c4fd1 | 1330 | infprintf (is, "%s", op->name); |
252b5132 | 1331 | |
ab902481 | 1332 | if (op->args[0]) |
252b5132 | 1333 | { |
fc8c4fd1 | 1334 | infprintf (is, "\t"); |
ab902481 RS |
1335 | print_insn_args (info, op, decode_mips_operand, word, |
1336 | memaddr + 4); | |
252b5132 RH |
1337 | } |
1338 | ||
aa5f19f2 | 1339 | return INSNLEN; |
252b5132 RH |
1340 | } |
1341 | } | |
1342 | } | |
fc8c4fd1 | 1343 | #undef GET_OP |
252b5132 RH |
1344 | |
1345 | /* Handle undefined instructions. */ | |
9bb28706 | 1346 | info->insn_type = dis_noninsn; |
fc8c4fd1 | 1347 | infprintf (is, "0x%x", word); |
aa5f19f2 | 1348 | return INSNLEN; |
252b5132 | 1349 | } |
aa5f19f2 | 1350 | \f |
252b5132 RH |
1351 | /* Disassemble an operand for a mips16 instruction. */ |
1352 | ||
1353 | static void | |
47b0e7ad NC |
1354 | print_mips16_insn_arg (char type, |
1355 | const struct mips_opcode *op, | |
1356 | int l, | |
1357 | bfd_boolean use_extend, | |
1358 | int extend, | |
1359 | bfd_vma memaddr, | |
1360 | struct disassemble_info *info) | |
252b5132 | 1361 | { |
fc8c4fd1 MR |
1362 | const fprintf_ftype infprintf = info->fprintf_func; |
1363 | void *is = info->stream; | |
1364 | ||
1365 | #define GET_OP(insn, field) \ | |
1366 | (((insn) >> MIPS16OP_SH_##field) & MIPS16OP_MASK_##field) | |
1367 | #define GET_OP_S(insn, field) \ | |
1368 | ((GET_OP (insn, field) ^ ((MIPS16OP_MASK_##field >> 1) + 1)) \ | |
1369 | - ((MIPS16OP_MASK_##field >> 1) + 1)) | |
252b5132 RH |
1370 | switch (type) |
1371 | { | |
1372 | case ',': | |
1373 | case '(': | |
1374 | case ')': | |
fc8c4fd1 | 1375 | infprintf (is, "%c", type); |
252b5132 RH |
1376 | break; |
1377 | ||
1378 | case 'y': | |
1379 | case 'w': | |
fc8c4fd1 | 1380 | infprintf (is, "%s", mips16_reg_names (GET_OP (l, RY))); |
252b5132 RH |
1381 | break; |
1382 | ||
1383 | case 'x': | |
1384 | case 'v': | |
fc8c4fd1 | 1385 | infprintf (is, "%s", mips16_reg_names (GET_OP (l, RX))); |
252b5132 RH |
1386 | break; |
1387 | ||
1388 | case 'z': | |
fc8c4fd1 | 1389 | infprintf (is, "%s", mips16_reg_names (GET_OP (l, RZ))); |
252b5132 RH |
1390 | break; |
1391 | ||
1392 | case 'Z': | |
fc8c4fd1 | 1393 | infprintf (is, "%s", mips16_reg_names (GET_OP (l, MOVE32Z))); |
252b5132 RH |
1394 | break; |
1395 | ||
1396 | case '0': | |
fc8c4fd1 | 1397 | infprintf (is, "%s", mips_gpr_names[0]); |
252b5132 RH |
1398 | break; |
1399 | ||
1400 | case 'S': | |
fc8c4fd1 | 1401 | infprintf (is, "%s", mips_gpr_names[29]); |
252b5132 RH |
1402 | break; |
1403 | ||
1404 | case 'P': | |
fc8c4fd1 | 1405 | infprintf (is, "$pc"); |
252b5132 RH |
1406 | break; |
1407 | ||
1408 | case 'R': | |
fc8c4fd1 | 1409 | infprintf (is, "%s", mips_gpr_names[31]); |
252b5132 RH |
1410 | break; |
1411 | ||
1412 | case 'X': | |
fc8c4fd1 | 1413 | infprintf (is, "%s", mips_gpr_names[GET_OP (l, REGR32)]); |
252b5132 RH |
1414 | break; |
1415 | ||
1416 | case 'Y': | |
fc8c4fd1 | 1417 | infprintf (is, "%s", mips_gpr_names[MIPS16OP_EXTRACT_REG32R (l)]); |
252b5132 RH |
1418 | break; |
1419 | ||
1420 | case '<': | |
1421 | case '>': | |
1422 | case '[': | |
1423 | case ']': | |
1424 | case '4': | |
1425 | case '5': | |
1426 | case 'H': | |
1427 | case 'W': | |
1428 | case 'D': | |
1429 | case 'j': | |
1430 | case '6': | |
1431 | case '8': | |
1432 | case 'V': | |
1433 | case 'C': | |
1434 | case 'U': | |
1435 | case 'k': | |
1436 | case 'K': | |
1437 | case 'p': | |
1438 | case 'q': | |
1439 | case 'A': | |
1440 | case 'B': | |
1441 | case 'E': | |
1442 | { | |
1443 | int immed, nbits, shift, signedp, extbits, pcrel, extu, branch; | |
1444 | ||
1445 | shift = 0; | |
1446 | signedp = 0; | |
1447 | extbits = 16; | |
1448 | pcrel = 0; | |
1449 | extu = 0; | |
1450 | branch = 0; | |
1451 | switch (type) | |
1452 | { | |
1453 | case '<': | |
1454 | nbits = 3; | |
fc8c4fd1 | 1455 | immed = GET_OP (l, RZ); |
252b5132 RH |
1456 | extbits = 5; |
1457 | extu = 1; | |
1458 | break; | |
1459 | case '>': | |
1460 | nbits = 3; | |
fc8c4fd1 | 1461 | immed = GET_OP (l, RX); |
252b5132 RH |
1462 | extbits = 5; |
1463 | extu = 1; | |
1464 | break; | |
1465 | case '[': | |
1466 | nbits = 3; | |
fc8c4fd1 | 1467 | immed = GET_OP (l, RZ); |
252b5132 RH |
1468 | extbits = 6; |
1469 | extu = 1; | |
1470 | break; | |
1471 | case ']': | |
1472 | nbits = 3; | |
fc8c4fd1 | 1473 | immed = GET_OP (l, RX); |
252b5132 RH |
1474 | extbits = 6; |
1475 | extu = 1; | |
1476 | break; | |
1477 | case '4': | |
1478 | nbits = 4; | |
fc8c4fd1 | 1479 | immed = GET_OP (l, IMM4); |
252b5132 RH |
1480 | signedp = 1; |
1481 | extbits = 15; | |
1482 | break; | |
1483 | case '5': | |
1484 | nbits = 5; | |
fc8c4fd1 | 1485 | immed = GET_OP (l, IMM5); |
252b5132 RH |
1486 | info->insn_type = dis_dref; |
1487 | info->data_size = 1; | |
1488 | break; | |
1489 | case 'H': | |
1490 | nbits = 5; | |
1491 | shift = 1; | |
fc8c4fd1 | 1492 | immed = GET_OP (l, IMM5); |
252b5132 RH |
1493 | info->insn_type = dis_dref; |
1494 | info->data_size = 2; | |
1495 | break; | |
1496 | case 'W': | |
1497 | nbits = 5; | |
1498 | shift = 2; | |
fc8c4fd1 | 1499 | immed = GET_OP (l, IMM5); |
252b5132 RH |
1500 | if ((op->pinfo & MIPS16_INSN_READ_PC) == 0 |
1501 | && (op->pinfo & MIPS16_INSN_READ_SP) == 0) | |
1502 | { | |
1503 | info->insn_type = dis_dref; | |
1504 | info->data_size = 4; | |
1505 | } | |
1506 | break; | |
1507 | case 'D': | |
1508 | nbits = 5; | |
1509 | shift = 3; | |
fc8c4fd1 | 1510 | immed = GET_OP (l, IMM5); |
252b5132 RH |
1511 | info->insn_type = dis_dref; |
1512 | info->data_size = 8; | |
1513 | break; | |
1514 | case 'j': | |
1515 | nbits = 5; | |
fc8c4fd1 | 1516 | immed = GET_OP (l, IMM5); |
252b5132 RH |
1517 | signedp = 1; |
1518 | break; | |
1519 | case '6': | |
1520 | nbits = 6; | |
fc8c4fd1 | 1521 | immed = GET_OP (l, IMM6); |
252b5132 RH |
1522 | break; |
1523 | case '8': | |
1524 | nbits = 8; | |
fc8c4fd1 | 1525 | immed = GET_OP (l, IMM8); |
252b5132 RH |
1526 | break; |
1527 | case 'V': | |
1528 | nbits = 8; | |
1529 | shift = 2; | |
fc8c4fd1 | 1530 | immed = GET_OP (l, IMM8); |
252b5132 RH |
1531 | /* FIXME: This might be lw, or it might be addiu to $sp or |
1532 | $pc. We assume it's load. */ | |
1533 | info->insn_type = dis_dref; | |
1534 | info->data_size = 4; | |
1535 | break; | |
1536 | case 'C': | |
1537 | nbits = 8; | |
1538 | shift = 3; | |
fc8c4fd1 | 1539 | immed = GET_OP (l, IMM8); |
252b5132 RH |
1540 | info->insn_type = dis_dref; |
1541 | info->data_size = 8; | |
1542 | break; | |
1543 | case 'U': | |
1544 | nbits = 8; | |
fc8c4fd1 | 1545 | immed = GET_OP (l, IMM8); |
252b5132 RH |
1546 | extu = 1; |
1547 | break; | |
1548 | case 'k': | |
1549 | nbits = 8; | |
fc8c4fd1 | 1550 | immed = GET_OP (l, IMM8); |
252b5132 RH |
1551 | signedp = 1; |
1552 | break; | |
1553 | case 'K': | |
1554 | nbits = 8; | |
1555 | shift = 3; | |
fc8c4fd1 | 1556 | immed = GET_OP (l, IMM8); |
252b5132 RH |
1557 | signedp = 1; |
1558 | break; | |
1559 | case 'p': | |
1560 | nbits = 8; | |
fc8c4fd1 | 1561 | immed = GET_OP (l, IMM8); |
252b5132 RH |
1562 | signedp = 1; |
1563 | pcrel = 1; | |
1564 | branch = 1; | |
252b5132 RH |
1565 | break; |
1566 | case 'q': | |
1567 | nbits = 11; | |
fc8c4fd1 | 1568 | immed = GET_OP (l, IMM11); |
252b5132 RH |
1569 | signedp = 1; |
1570 | pcrel = 1; | |
1571 | branch = 1; | |
252b5132 RH |
1572 | break; |
1573 | case 'A': | |
1574 | nbits = 8; | |
1575 | shift = 2; | |
fc8c4fd1 | 1576 | immed = GET_OP (l, IMM8); |
252b5132 RH |
1577 | pcrel = 1; |
1578 | /* FIXME: This can be lw or la. We assume it is lw. */ | |
1579 | info->insn_type = dis_dref; | |
1580 | info->data_size = 4; | |
1581 | break; | |
1582 | case 'B': | |
1583 | nbits = 5; | |
1584 | shift = 3; | |
fc8c4fd1 | 1585 | immed = GET_OP (l, IMM5); |
252b5132 RH |
1586 | pcrel = 1; |
1587 | info->insn_type = dis_dref; | |
1588 | info->data_size = 8; | |
1589 | break; | |
1590 | case 'E': | |
1591 | nbits = 5; | |
1592 | shift = 2; | |
fc8c4fd1 | 1593 | immed = GET_OP (l, IMM5); |
252b5132 RH |
1594 | pcrel = 1; |
1595 | break; | |
1596 | default: | |
1597 | abort (); | |
1598 | } | |
1599 | ||
1600 | if (! use_extend) | |
1601 | { | |
1602 | if (signedp && immed >= (1 << (nbits - 1))) | |
1603 | immed -= 1 << nbits; | |
1604 | immed <<= shift; | |
1605 | if ((type == '<' || type == '>' || type == '[' || type == ']') | |
1606 | && immed == 0) | |
1607 | immed = 8; | |
1608 | } | |
1609 | else | |
1610 | { | |
1611 | if (extbits == 16) | |
1612 | immed |= ((extend & 0x1f) << 11) | (extend & 0x7e0); | |
1613 | else if (extbits == 15) | |
1614 | immed |= ((extend & 0xf) << 11) | (extend & 0x7f0); | |
1615 | else | |
1616 | immed = ((extend >> 6) & 0x1f) | (extend & 0x20); | |
1617 | immed &= (1 << extbits) - 1; | |
1618 | if (! extu && immed >= (1 << (extbits - 1))) | |
1619 | immed -= 1 << extbits; | |
1620 | } | |
1621 | ||
1622 | if (! pcrel) | |
fc8c4fd1 | 1623 | infprintf (is, "%d", immed); |
252b5132 RH |
1624 | else |
1625 | { | |
1626 | bfd_vma baseaddr; | |
252b5132 RH |
1627 | |
1628 | if (branch) | |
1629 | { | |
1630 | immed *= 2; | |
1631 | baseaddr = memaddr + 2; | |
1632 | } | |
1633 | else if (use_extend) | |
1634 | baseaddr = memaddr - 2; | |
1635 | else | |
1636 | { | |
1637 | int status; | |
1638 | bfd_byte buffer[2]; | |
1639 | ||
1640 | baseaddr = memaddr; | |
1641 | ||
1642 | /* If this instruction is in the delay slot of a jr | |
1643 | instruction, the base address is the address of the | |
1644 | jr instruction. If it is in the delay slot of jalr | |
1645 | instruction, the base address is the address of the | |
1646 | jalr instruction. This test is unreliable: we have | |
1647 | no way of knowing whether the previous word is | |
1648 | instruction or data. */ | |
1649 | status = (*info->read_memory_func) (memaddr - 4, buffer, 2, | |
1650 | info); | |
1651 | if (status == 0 | |
1652 | && (((info->endian == BFD_ENDIAN_BIG | |
1653 | ? bfd_getb16 (buffer) | |
1654 | : bfd_getl16 (buffer)) | |
1655 | & 0xf800) == 0x1800)) | |
1656 | baseaddr = memaddr - 4; | |
1657 | else | |
1658 | { | |
1659 | status = (*info->read_memory_func) (memaddr - 2, buffer, | |
1660 | 2, info); | |
1661 | if (status == 0 | |
1662 | && (((info->endian == BFD_ENDIAN_BIG | |
1663 | ? bfd_getb16 (buffer) | |
1664 | : bfd_getl16 (buffer)) | |
1665 | & 0xf81f) == 0xe800)) | |
1666 | baseaddr = memaddr - 2; | |
1667 | } | |
1668 | } | |
9bb28706 | 1669 | info->target = (baseaddr & ~((1 << shift) - 1)) + immed; |
022fac6d TS |
1670 | if (pcrel && branch |
1671 | && info->flavour == bfd_target_unknown_flavour) | |
1672 | /* For gdb disassembler, maintain odd address. */ | |
1673 | info->target |= 1; | |
9bb28706 | 1674 | (*info->print_address_func) (info->target, info); |
252b5132 RH |
1675 | } |
1676 | } | |
1677 | break; | |
1678 | ||
1679 | case 'a': | |
27c5c572 | 1680 | case 'i': |
022fac6d | 1681 | { |
022fac6d TS |
1682 | if (! use_extend) |
1683 | extend = 0; | |
1684 | l = ((l & 0x1f) << 23) | ((l & 0x3e0) << 13) | (extend << 2); | |
27c5c572 | 1685 | if (type == 'a' && info->flavour == bfd_target_unknown_flavour) |
022fac6d TS |
1686 | /* For gdb disassembler, maintain odd address. */ |
1687 | l |= 1; | |
1688 | } | |
9bb28706 CD |
1689 | info->target = ((memaddr + 4) & ~(bfd_vma) 0x0fffffff) | l; |
1690 | (*info->print_address_func) (info->target, info); | |
252b5132 RH |
1691 | break; |
1692 | ||
1693 | case 'l': | |
1694 | case 'L': | |
1695 | { | |
1696 | int need_comma, amask, smask; | |
1697 | ||
1698 | need_comma = 0; | |
1699 | ||
fc8c4fd1 | 1700 | l = GET_OP (l, IMM6); |
252b5132 RH |
1701 | |
1702 | amask = (l >> 3) & 7; | |
1703 | ||
1704 | if (amask > 0 && amask < 5) | |
1705 | { | |
fc8c4fd1 | 1706 | infprintf (is, "%s", mips_gpr_names[4]); |
252b5132 | 1707 | if (amask > 1) |
fc8c4fd1 | 1708 | infprintf (is, "-%s", mips_gpr_names[amask + 3]); |
252b5132 RH |
1709 | need_comma = 1; |
1710 | } | |
1711 | ||
1712 | smask = (l >> 1) & 3; | |
1713 | if (smask == 3) | |
1714 | { | |
fc8c4fd1 | 1715 | infprintf (is, "%s??", need_comma ? "," : ""); |
252b5132 RH |
1716 | need_comma = 1; |
1717 | } | |
1718 | else if (smask > 0) | |
1719 | { | |
fc8c4fd1 | 1720 | infprintf (is, "%s%s", need_comma ? "," : "", mips_gpr_names[16]); |
252b5132 | 1721 | if (smask > 1) |
fc8c4fd1 | 1722 | infprintf (is, "-%s", mips_gpr_names[smask + 15]); |
252b5132 RH |
1723 | need_comma = 1; |
1724 | } | |
1725 | ||
1726 | if (l & 1) | |
1727 | { | |
fc8c4fd1 | 1728 | infprintf (is, "%s%s", need_comma ? "," : "", mips_gpr_names[31]); |
252b5132 RH |
1729 | need_comma = 1; |
1730 | } | |
1731 | ||
1732 | if (amask == 5 || amask == 6) | |
1733 | { | |
fc8c4fd1 | 1734 | infprintf (is, "%s$f0", need_comma ? "," : ""); |
252b5132 | 1735 | if (amask == 6) |
fc8c4fd1 | 1736 | infprintf (is, "-$f1"); |
252b5132 RH |
1737 | } |
1738 | } | |
1739 | break; | |
1740 | ||
0499d65b TS |
1741 | case 'm': |
1742 | case 'M': | |
1743 | /* MIPS16e save/restore. */ | |
1744 | { | |
1745 | int need_comma = 0; | |
1746 | int amask, args, statics; | |
1747 | int nsreg, smask; | |
1748 | int framesz; | |
1749 | int i, j; | |
1750 | ||
1751 | l = l & 0x7f; | |
1752 | if (use_extend) | |
1753 | l |= extend << 16; | |
1754 | ||
1755 | amask = (l >> 16) & 0xf; | |
1756 | if (amask == MIPS16_ALL_ARGS) | |
1757 | { | |
1758 | args = 4; | |
1759 | statics = 0; | |
1760 | } | |
1761 | else if (amask == MIPS16_ALL_STATICS) | |
1762 | { | |
1763 | args = 0; | |
1764 | statics = 4; | |
1765 | } | |
1766 | else | |
1767 | { | |
1768 | args = amask >> 2; | |
1769 | statics = amask & 3; | |
1770 | } | |
1771 | ||
1772 | if (args > 0) { | |
fc8c4fd1 | 1773 | infprintf (is, "%s", mips_gpr_names[4]); |
0499d65b | 1774 | if (args > 1) |
fc8c4fd1 | 1775 | infprintf (is, "-%s", mips_gpr_names[4 + args - 1]); |
0499d65b TS |
1776 | need_comma = 1; |
1777 | } | |
1778 | ||
1779 | framesz = (((l >> 16) & 0xf0) | (l & 0x0f)) * 8; | |
1780 | if (framesz == 0 && !use_extend) | |
1781 | framesz = 128; | |
1782 | ||
fc8c4fd1 | 1783 | infprintf (is, "%s%d", need_comma ? "," : "", framesz); |
0499d65b TS |
1784 | |
1785 | if (l & 0x40) /* $ra */ | |
fc8c4fd1 | 1786 | infprintf (is, ",%s", mips_gpr_names[31]); |
0499d65b TS |
1787 | |
1788 | nsreg = (l >> 24) & 0x7; | |
1789 | smask = 0; | |
1790 | if (l & 0x20) /* $s0 */ | |
1791 | smask |= 1 << 0; | |
1792 | if (l & 0x10) /* $s1 */ | |
1793 | smask |= 1 << 1; | |
1794 | if (nsreg > 0) /* $s2-$s8 */ | |
1795 | smask |= ((1 << nsreg) - 1) << 2; | |
1796 | ||
1797 | /* Find first set static reg bit. */ | |
1798 | for (i = 0; i < 9; i++) | |
1799 | { | |
1800 | if (smask & (1 << i)) | |
1801 | { | |
fc8c4fd1 | 1802 | infprintf (is, ",%s", mips_gpr_names[i == 8 ? 30 : (16 + i)]); |
0499d65b TS |
1803 | /* Skip over string of set bits. */ |
1804 | for (j = i; smask & (2 << j); j++) | |
1805 | continue; | |
1806 | if (j > i) | |
fc8c4fd1 | 1807 | infprintf (is, "-%s", mips_gpr_names[j == 8 ? 30 : (16 + j)]); |
0499d65b TS |
1808 | i = j + 1; |
1809 | } | |
1810 | } | |
1811 | ||
1812 | /* Statics $ax - $a3. */ | |
1813 | if (statics == 1) | |
fc8c4fd1 | 1814 | infprintf (is, ",%s", mips_gpr_names[7]); |
0499d65b | 1815 | else if (statics > 0) |
fc8c4fd1 MR |
1816 | infprintf (is, ",%s-%s", |
1817 | mips_gpr_names[7 - statics + 1], | |
1818 | mips_gpr_names[7]); | |
0499d65b TS |
1819 | } |
1820 | break; | |
1821 | ||
252b5132 | 1822 | default: |
aa5f19f2 | 1823 | /* xgettext:c-format */ |
fc8c4fd1 MR |
1824 | infprintf (is, |
1825 | _("# internal disassembler error, " | |
1826 | "unrecognised modifier (%c)"), | |
1827 | type); | |
252b5132 RH |
1828 | abort (); |
1829 | } | |
1830 | } | |
640c0ccd | 1831 | |
1bbce132 MR |
1832 | |
1833 | /* Check if the given address is the last word of a MIPS16 PLT entry. | |
1834 | This word is data and depending on the value it may interfere with | |
1835 | disassembly of further PLT entries. We make use of the fact PLT | |
1836 | symbols are marked BSF_SYNTHETIC. */ | |
1837 | static bfd_boolean | |
1838 | is_mips16_plt_tail (struct disassemble_info *info, bfd_vma addr) | |
1839 | { | |
1840 | if (info->symbols | |
1841 | && info->symbols[0] | |
1842 | && (info->symbols[0]->flags & BSF_SYNTHETIC) | |
1843 | && addr == bfd_asymbol_value (info->symbols[0]) + 12) | |
1844 | return TRUE; | |
1845 | ||
1846 | return FALSE; | |
1847 | } | |
1848 | ||
47b0e7ad NC |
1849 | /* Disassemble mips16 instructions. */ |
1850 | ||
1851 | static int | |
1852 | print_insn_mips16 (bfd_vma memaddr, struct disassemble_info *info) | |
1853 | { | |
fc8c4fd1 | 1854 | const fprintf_ftype infprintf = info->fprintf_func; |
47b0e7ad | 1855 | int status; |
1bbce132 | 1856 | bfd_byte buffer[4]; |
47b0e7ad NC |
1857 | int length; |
1858 | int insn; | |
1859 | bfd_boolean use_extend; | |
1860 | int extend = 0; | |
1861 | const struct mips_opcode *op, *opend; | |
fc8c4fd1 | 1862 | void *is = info->stream; |
47b0e7ad NC |
1863 | |
1864 | info->bytes_per_chunk = 2; | |
1865 | info->display_endian = info->endian; | |
1866 | info->insn_info_valid = 1; | |
1867 | info->branch_delay_insns = 0; | |
1868 | info->data_size = 0; | |
47b0e7ad NC |
1869 | info->target = 0; |
1870 | info->target2 = 0; | |
1871 | ||
1bbce132 MR |
1872 | /* Decode PLT entry's GOT slot address word. */ |
1873 | if (is_mips16_plt_tail (info, memaddr)) | |
1874 | { | |
1875 | info->insn_type = dis_noninsn; | |
1876 | status = (*info->read_memory_func) (memaddr, buffer, 4, info); | |
1877 | if (status == 0) | |
1878 | { | |
1879 | unsigned int gotslot; | |
1880 | ||
1881 | if (info->endian == BFD_ENDIAN_BIG) | |
1882 | gotslot = bfd_getb32 (buffer); | |
1883 | else | |
1884 | gotslot = bfd_getl32 (buffer); | |
1885 | infprintf (is, ".word\t0x%x", gotslot); | |
1886 | ||
1887 | return 4; | |
1888 | } | |
1889 | } | |
1890 | else | |
1891 | { | |
1892 | info->insn_type = dis_nonbranch; | |
1893 | status = (*info->read_memory_func) (memaddr, buffer, 2, info); | |
1894 | } | |
47b0e7ad NC |
1895 | if (status != 0) |
1896 | { | |
1897 | (*info->memory_error_func) (status, memaddr, info); | |
1898 | return -1; | |
1899 | } | |
1900 | ||
1901 | length = 2; | |
1902 | ||
1903 | if (info->endian == BFD_ENDIAN_BIG) | |
1904 | insn = bfd_getb16 (buffer); | |
1905 | else | |
1906 | insn = bfd_getl16 (buffer); | |
1907 | ||
1908 | /* Handle the extend opcode specially. */ | |
1909 | use_extend = FALSE; | |
1910 | if ((insn & 0xf800) == 0xf000) | |
1911 | { | |
1912 | use_extend = TRUE; | |
1913 | extend = insn & 0x7ff; | |
1914 | ||
1915 | memaddr += 2; | |
1916 | ||
1917 | status = (*info->read_memory_func) (memaddr, buffer, 2, info); | |
1918 | if (status != 0) | |
1919 | { | |
fc8c4fd1 | 1920 | infprintf (is, "extend 0x%x", (unsigned int) extend); |
47b0e7ad NC |
1921 | (*info->memory_error_func) (status, memaddr, info); |
1922 | return -1; | |
1923 | } | |
1924 | ||
1925 | if (info->endian == BFD_ENDIAN_BIG) | |
1926 | insn = bfd_getb16 (buffer); | |
1927 | else | |
1928 | insn = bfd_getl16 (buffer); | |
1929 | ||
1930 | /* Check for an extend opcode followed by an extend opcode. */ | |
1931 | if ((insn & 0xf800) == 0xf000) | |
1932 | { | |
fc8c4fd1 | 1933 | infprintf (is, "extend 0x%x", (unsigned int) extend); |
47b0e7ad NC |
1934 | info->insn_type = dis_noninsn; |
1935 | return length; | |
1936 | } | |
1937 | ||
1938 | length += 2; | |
1939 | } | |
1940 | ||
1941 | /* FIXME: Should probably use a hash table on the major opcode here. */ | |
1942 | ||
1943 | opend = mips16_opcodes + bfd_mips16_num_opcodes; | |
1944 | for (op = mips16_opcodes; op < opend; op++) | |
1945 | { | |
1946 | if (op->pinfo != INSN_MACRO | |
1947 | && !(no_aliases && (op->pinfo2 & INSN2_ALIAS)) | |
1948 | && (insn & op->mask) == op->match) | |
1949 | { | |
1950 | const char *s; | |
1951 | ||
27c5c572 | 1952 | if (op->args[0] == 'a' || op->args[0] == 'i') |
47b0e7ad NC |
1953 | { |
1954 | if (use_extend) | |
1955 | { | |
fc8c4fd1 | 1956 | infprintf (is, "extend 0x%x", (unsigned int) extend); |
47b0e7ad NC |
1957 | info->insn_type = dis_noninsn; |
1958 | return length - 2; | |
1959 | } | |
1960 | ||
1961 | use_extend = FALSE; | |
1962 | ||
1963 | memaddr += 2; | |
1964 | ||
1965 | status = (*info->read_memory_func) (memaddr, buffer, 2, | |
1966 | info); | |
1967 | if (status == 0) | |
1968 | { | |
1969 | use_extend = TRUE; | |
1970 | if (info->endian == BFD_ENDIAN_BIG) | |
1971 | extend = bfd_getb16 (buffer); | |
1972 | else | |
1973 | extend = bfd_getl16 (buffer); | |
1974 | length += 2; | |
1975 | } | |
1976 | } | |
1977 | ||
fc8c4fd1 | 1978 | infprintf (is, "%s", op->name); |
47b0e7ad | 1979 | if (op->args[0] != '\0') |
fc8c4fd1 | 1980 | infprintf (is, "\t"); |
47b0e7ad NC |
1981 | |
1982 | for (s = op->args; *s != '\0'; s++) | |
1983 | { | |
1984 | if (*s == ',' | |
1985 | && s[1] == 'w' | |
fc8c4fd1 | 1986 | && GET_OP (insn, RX) == GET_OP (insn, RY)) |
47b0e7ad NC |
1987 | { |
1988 | /* Skip the register and the comma. */ | |
1989 | ++s; | |
1990 | continue; | |
1991 | } | |
1992 | if (*s == ',' | |
1993 | && s[1] == 'v' | |
fc8c4fd1 | 1994 | && GET_OP (insn, RZ) == GET_OP (insn, RX)) |
47b0e7ad NC |
1995 | { |
1996 | /* Skip the register and the comma. */ | |
1997 | ++s; | |
1998 | continue; | |
1999 | } | |
2000 | print_mips16_insn_arg (*s, op, insn, use_extend, extend, memaddr, | |
2001 | info); | |
2002 | } | |
2003 | ||
9a2c7088 | 2004 | /* Figure out branch instruction type and delay slot information. */ |
47b0e7ad | 2005 | if ((op->pinfo & INSN_UNCOND_BRANCH_DELAY) != 0) |
9a2c7088 MR |
2006 | info->branch_delay_insns = 1; |
2007 | if ((op->pinfo & (INSN_UNCOND_BRANCH_DELAY | |
2008 | | MIPS16_INSN_UNCOND_BRANCH)) != 0) | |
47b0e7ad | 2009 | { |
9a2c7088 MR |
2010 | if ((op->pinfo & INSN_WRITE_GPR_31) != 0) |
2011 | info->insn_type = dis_jsr; | |
2012 | else | |
47b0e7ad NC |
2013 | info->insn_type = dis_branch; |
2014 | } | |
9a2c7088 MR |
2015 | else if ((op->pinfo & MIPS16_INSN_COND_BRANCH) != 0) |
2016 | info->insn_type = dis_condbranch; | |
47b0e7ad NC |
2017 | |
2018 | return length; | |
2019 | } | |
2020 | } | |
fc8c4fd1 MR |
2021 | #undef GET_OP_S |
2022 | #undef GET_OP | |
47b0e7ad NC |
2023 | |
2024 | if (use_extend) | |
fc8c4fd1 MR |
2025 | infprintf (is, "0x%x", extend | 0xf000); |
2026 | infprintf (is, "0x%x", insn); | |
47b0e7ad NC |
2027 | info->insn_type = dis_noninsn; |
2028 | ||
2029 | return length; | |
2030 | } | |
2031 | ||
df58fc94 RS |
2032 | /* Disassemble microMIPS instructions. */ |
2033 | ||
2034 | static int | |
2035 | print_insn_micromips (bfd_vma memaddr, struct disassemble_info *info) | |
2036 | { | |
0c7533d3 | 2037 | const fprintf_ftype infprintf = info->fprintf_func; |
df58fc94 | 2038 | const struct mips_opcode *op, *opend; |
df58fc94 | 2039 | void *is = info->stream; |
df58fc94 | 2040 | bfd_byte buffer[2]; |
ab902481 RS |
2041 | unsigned int higher; |
2042 | unsigned int length; | |
df58fc94 | 2043 | int status; |
ab902481 | 2044 | unsigned int insn; |
df58fc94 RS |
2045 | |
2046 | info->bytes_per_chunk = 2; | |
2047 | info->display_endian = info->endian; | |
2048 | info->insn_info_valid = 1; | |
2049 | info->branch_delay_insns = 0; | |
2050 | info->data_size = 0; | |
2051 | info->insn_type = dis_nonbranch; | |
2052 | info->target = 0; | |
2053 | info->target2 = 0; | |
2054 | ||
2055 | status = (*info->read_memory_func) (memaddr, buffer, 2, info); | |
2056 | if (status != 0) | |
2057 | { | |
2058 | (*info->memory_error_func) (status, memaddr, info); | |
2059 | return -1; | |
2060 | } | |
2061 | ||
2062 | length = 2; | |
2063 | ||
2064 | if (info->endian == BFD_ENDIAN_BIG) | |
2065 | insn = bfd_getb16 (buffer); | |
2066 | else | |
2067 | insn = bfd_getl16 (buffer); | |
2068 | ||
2069 | if ((insn & 0xfc00) == 0x7c00) | |
2070 | { | |
2071 | /* This is a 48-bit microMIPS instruction. */ | |
2072 | higher = insn; | |
2073 | ||
2074 | status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info); | |
2075 | if (status != 0) | |
2076 | { | |
0c7533d3 | 2077 | infprintf (is, "micromips 0x%x", higher); |
df58fc94 RS |
2078 | (*info->memory_error_func) (status, memaddr + 2, info); |
2079 | return -1; | |
2080 | } | |
2081 | if (info->endian == BFD_ENDIAN_BIG) | |
2082 | insn = bfd_getb16 (buffer); | |
2083 | else | |
2084 | insn = bfd_getl16 (buffer); | |
2085 | higher = (higher << 16) | insn; | |
2086 | ||
2087 | status = (*info->read_memory_func) (memaddr + 4, buffer, 2, info); | |
2088 | if (status != 0) | |
2089 | { | |
0c7533d3 | 2090 | infprintf (is, "micromips 0x%x", higher); |
df58fc94 RS |
2091 | (*info->memory_error_func) (status, memaddr + 4, info); |
2092 | return -1; | |
2093 | } | |
2094 | if (info->endian == BFD_ENDIAN_BIG) | |
2095 | insn = bfd_getb16 (buffer); | |
2096 | else | |
2097 | insn = bfd_getl16 (buffer); | |
0c7533d3 | 2098 | infprintf (is, "0x%x%04x (48-bit insn)", higher, insn); |
df58fc94 RS |
2099 | |
2100 | info->insn_type = dis_noninsn; | |
2101 | return 6; | |
2102 | } | |
2103 | else if ((insn & 0x1c00) == 0x0000 || (insn & 0x1000) == 0x1000) | |
2104 | { | |
2105 | /* This is a 32-bit microMIPS instruction. */ | |
2106 | higher = insn; | |
2107 | ||
2108 | status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info); | |
2109 | if (status != 0) | |
2110 | { | |
0c7533d3 | 2111 | infprintf (is, "micromips 0x%x", higher); |
df58fc94 RS |
2112 | (*info->memory_error_func) (status, memaddr + 2, info); |
2113 | return -1; | |
2114 | } | |
2115 | ||
2116 | if (info->endian == BFD_ENDIAN_BIG) | |
2117 | insn = bfd_getb16 (buffer); | |
2118 | else | |
2119 | insn = bfd_getl16 (buffer); | |
2120 | ||
2121 | insn = insn | (higher << 16); | |
2122 | ||
2123 | length += 2; | |
2124 | } | |
2125 | ||
2126 | /* FIXME: Should probably use a hash table on the major opcode here. */ | |
2127 | ||
df58fc94 RS |
2128 | opend = micromips_opcodes + bfd_micromips_num_opcodes; |
2129 | for (op = micromips_opcodes; op < opend; op++) | |
2130 | { | |
2131 | if (op->pinfo != INSN_MACRO | |
2132 | && !(no_aliases && (op->pinfo2 & INSN2_ALIAS)) | |
2133 | && (insn & op->mask) == op->match | |
2134 | && ((length == 2 && (op->mask & 0xffff0000) == 0) | |
2135 | || (length == 4 && (op->mask & 0xffff0000) != 0))) | |
2136 | { | |
0c7533d3 | 2137 | infprintf (is, "%s", op->name); |
df58fc94 | 2138 | |
ab902481 | 2139 | if (op->args[0]) |
df58fc94 | 2140 | { |
ab902481 RS |
2141 | infprintf (is, "\t"); |
2142 | print_insn_args (info, op, decode_micromips_operand, insn, | |
2143 | memaddr + length + 1); | |
df58fc94 RS |
2144 | } |
2145 | ||
2146 | /* Figure out instruction type and branch delay information. */ | |
2147 | if ((op->pinfo | |
2148 | & (INSN_UNCOND_BRANCH_DELAY | INSN_COND_BRANCH_DELAY)) != 0) | |
2149 | info->branch_delay_insns = 1; | |
2150 | if (((op->pinfo & INSN_UNCOND_BRANCH_DELAY) | |
2151 | | (op->pinfo2 & INSN2_UNCOND_BRANCH)) != 0) | |
2152 | { | |
2153 | if ((op->pinfo & (INSN_WRITE_GPR_31 | INSN_WRITE_GPR_T)) != 0) | |
2154 | info->insn_type = dis_jsr; | |
2155 | else | |
2156 | info->insn_type = dis_branch; | |
2157 | } | |
2158 | else if (((op->pinfo & INSN_COND_BRANCH_DELAY) | |
2159 | | (op->pinfo2 & INSN2_COND_BRANCH)) != 0) | |
2160 | { | |
2161 | if ((op->pinfo & INSN_WRITE_GPR_31) != 0) | |
2162 | info->insn_type = dis_condjsr; | |
2163 | else | |
2164 | info->insn_type = dis_condbranch; | |
2165 | } | |
2166 | else if ((op->pinfo | |
2167 | & (INSN_STORE_MEMORY | INSN_LOAD_MEMORY_DELAY)) != 0) | |
2168 | info->insn_type = dis_dref; | |
2169 | ||
2170 | return length; | |
2171 | } | |
2172 | } | |
df58fc94 | 2173 | |
0c7533d3 | 2174 | infprintf (is, "0x%x", insn); |
df58fc94 RS |
2175 | info->insn_type = dis_noninsn; |
2176 | ||
2177 | return length; | |
2178 | } | |
2179 | ||
2180 | /* Return 1 if a symbol associated with the location being disassembled | |
2181 | indicates a compressed (MIPS16 or microMIPS) mode. We iterate over | |
2182 | all the symbols at the address being considered assuming if at least | |
2183 | one of them indicates code compression, then such code has been | |
2184 | genuinely produced here (other symbols could have been derived from | |
2185 | function symbols defined elsewhere or could define data). Otherwise, | |
2186 | return 0. */ | |
2187 | ||
2188 | static bfd_boolean | |
2189 | is_compressed_mode_p (struct disassemble_info *info) | |
2190 | { | |
df58fc94 | 2191 | int i; |
1bbce132 MR |
2192 | int l; |
2193 | ||
2194 | for (i = info->symtab_pos, l = i + info->num_symbols; i < l; i++) | |
2195 | if (((info->symtab[i])->flags & BSF_SYNTHETIC) != 0 | |
2196 | && ((!micromips_ase | |
2197 | && ELF_ST_IS_MIPS16 ((*info->symbols)->udata.i)) | |
2198 | || (micromips_ase | |
2199 | && ELF_ST_IS_MICROMIPS ((*info->symbols)->udata.i)))) | |
2200 | return 1; | |
2201 | else if (bfd_asymbol_flavour (info->symtab[i]) == bfd_target_elf_flavour | |
2202 | && info->symtab[i]->section == info->section) | |
2203 | { | |
2204 | elf_symbol_type *symbol = (elf_symbol_type *) info->symtab[i]; | |
2205 | if ((!micromips_ase | |
2206 | && ELF_ST_IS_MIPS16 (symbol->internal_elf_sym.st_other)) | |
2207 | || (micromips_ase | |
2208 | && ELF_ST_IS_MICROMIPS (symbol->internal_elf_sym.st_other))) | |
2209 | return 1; | |
2210 | } | |
df58fc94 RS |
2211 | |
2212 | return 0; | |
2213 | } | |
2214 | ||
47b0e7ad NC |
2215 | /* In an environment where we do not know the symbol type of the |
2216 | instruction we are forced to assume that the low order bit of the | |
2217 | instructions' address may mark it as a mips16 instruction. If we | |
2218 | are single stepping, or the pc is within the disassembled function, | |
2219 | this works. Otherwise, we need a clue. Sometimes. */ | |
2220 | ||
2221 | static int | |
2222 | _print_insn_mips (bfd_vma memaddr, | |
2223 | struct disassemble_info *info, | |
2224 | enum bfd_endian endianness) | |
2225 | { | |
df58fc94 | 2226 | int (*print_insn_compr) (bfd_vma, struct disassemble_info *); |
47b0e7ad NC |
2227 | bfd_byte buffer[INSNLEN]; |
2228 | int status; | |
2229 | ||
2230 | set_default_mips_dis_options (info); | |
2231 | parse_mips_dis_options (info->disassembler_options); | |
2232 | ||
df58fc94 RS |
2233 | if (info->mach == bfd_mach_mips16) |
2234 | return print_insn_mips16 (memaddr, info); | |
2235 | if (info->mach == bfd_mach_mips_micromips) | |
2236 | return print_insn_micromips (memaddr, info); | |
2237 | ||
2238 | print_insn_compr = !micromips_ase ? print_insn_mips16 : print_insn_micromips; | |
2239 | ||
47b0e7ad | 2240 | #if 1 |
df58fc94 | 2241 | /* FIXME: If odd address, this is CLEARLY a compressed instruction. */ |
47b0e7ad NC |
2242 | /* Only a few tools will work this way. */ |
2243 | if (memaddr & 0x01) | |
df58fc94 | 2244 | return print_insn_compr (memaddr, info); |
47b0e7ad NC |
2245 | #endif |
2246 | ||
2247 | #if SYMTAB_AVAILABLE | |
df58fc94 RS |
2248 | if (is_compressed_mode_p (info)) |
2249 | return print_insn_compr (memaddr, info); | |
47b0e7ad NC |
2250 | #endif |
2251 | ||
2252 | status = (*info->read_memory_func) (memaddr, buffer, INSNLEN, info); | |
2253 | if (status == 0) | |
2254 | { | |
fc8c4fd1 | 2255 | int insn; |
47b0e7ad NC |
2256 | |
2257 | if (endianness == BFD_ENDIAN_BIG) | |
fc8c4fd1 | 2258 | insn = bfd_getb32 (buffer); |
47b0e7ad | 2259 | else |
fc8c4fd1 | 2260 | insn = bfd_getl32 (buffer); |
47b0e7ad NC |
2261 | |
2262 | return print_insn_mips (memaddr, insn, info); | |
2263 | } | |
2264 | else | |
2265 | { | |
2266 | (*info->memory_error_func) (status, memaddr, info); | |
2267 | return -1; | |
2268 | } | |
2269 | } | |
2270 | ||
2271 | int | |
2272 | print_insn_big_mips (bfd_vma memaddr, struct disassemble_info *info) | |
2273 | { | |
2274 | return _print_insn_mips (memaddr, info, BFD_ENDIAN_BIG); | |
2275 | } | |
2276 | ||
2277 | int | |
2278 | print_insn_little_mips (bfd_vma memaddr, struct disassemble_info *info) | |
2279 | { | |
2280 | return _print_insn_mips (memaddr, info, BFD_ENDIAN_LITTLE); | |
2281 | } | |
2282 | \f | |
640c0ccd | 2283 | void |
47b0e7ad | 2284 | print_mips_disassembler_options (FILE *stream) |
640c0ccd | 2285 | { |
4a9a3c54 | 2286 | unsigned int i; |
640c0ccd CD |
2287 | |
2288 | fprintf (stream, _("\n\ | |
2289 | The following MIPS specific disassembler options are supported for use\n\ | |
2290 | with the -M switch (multiple options should be separated by commas):\n")); | |
2291 | ||
b015e599 AP |
2292 | fprintf (stream, _("\n\ |
2293 | virt Recognize the virtualization ASE instructions.\n")); | |
2294 | ||
640c0ccd CD |
2295 | fprintf (stream, _("\n\ |
2296 | gpr-names=ABI Print GPR names according to specified ABI.\n\ | |
2297 | Default: based on binary being disassembled.\n")); | |
2298 | ||
2299 | fprintf (stream, _("\n\ | |
2300 | fpr-names=ABI Print FPR names according to specified ABI.\n\ | |
2301 | Default: numeric.\n")); | |
2302 | ||
2303 | fprintf (stream, _("\n\ | |
2304 | cp0-names=ARCH Print CP0 register names according to\n\ | |
2305 | specified architecture.\n\ | |
2306 | Default: based on binary being disassembled.\n")); | |
2307 | ||
af7ee8bf CD |
2308 | fprintf (stream, _("\n\ |
2309 | hwr-names=ARCH Print HWR names according to specified \n\ | |
2310 | architecture.\n\ | |
2311 | Default: based on binary being disassembled.\n")); | |
2312 | ||
640c0ccd CD |
2313 | fprintf (stream, _("\n\ |
2314 | reg-names=ABI Print GPR and FPR names according to\n\ | |
2315 | specified ABI.\n")); | |
2316 | ||
2317 | fprintf (stream, _("\n\ | |
af7ee8bf | 2318 | reg-names=ARCH Print CP0 register and HWR names according to\n\ |
640c0ccd CD |
2319 | specified architecture.\n")); |
2320 | ||
2321 | fprintf (stream, _("\n\ | |
2322 | For the options above, the following values are supported for \"ABI\":\n\ | |
2323 | ")); | |
4a9a3c54 | 2324 | for (i = 0; i < ARRAY_SIZE (mips_abi_choices); i++) |
640c0ccd CD |
2325 | fprintf (stream, " %s", mips_abi_choices[i].name); |
2326 | fprintf (stream, _("\n")); | |
2327 | ||
2328 | fprintf (stream, _("\n\ | |
2329 | For the options above, The following values are supported for \"ARCH\":\n\ | |
2330 | ")); | |
4a9a3c54 | 2331 | for (i = 0; i < ARRAY_SIZE (mips_arch_choices); i++) |
640c0ccd CD |
2332 | if (*mips_arch_choices[i].name != '\0') |
2333 | fprintf (stream, " %s", mips_arch_choices[i].name); | |
2334 | fprintf (stream, _("\n")); | |
2335 | ||
2336 | fprintf (stream, _("\n")); | |
2337 | } |