?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
target: armv8: Avoid semihosting segfault on halt
[openocd.git] / src / target / armv8.c
blobdfa2c67a5ccfa95a99a1291d5771b937acb76f84
1 /***************************************************************************
2 * Copyright (C) 2015 by David Ung *
3 * *
4 * Copyright (C) 2018 by Liviu Ionescu *
5 * <ilg@livius.net> *
6 * *
7 * This program is free software; you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation; either version 2 of the License, or *
10 * (at your option) any later version. *
11 * *
12 * This program is distributed in the hope that it will be useful, *
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 * GNU General Public License for more details. *
16 * *
17 * You should have received a copy of the GNU General Public License *
18 * along with this program; if not, write to the *
19 * Free Software Foundation, Inc., *
20 ***************************************************************************/
21
22 #ifdef HAVE_CONFIG_H
23 #include "config.h"
24 #endif
25
26 #include <helper/replacements.h>
27
28 #include "armv8.h"
29 #include "arm_disassembler.h"
30
31 #include "register.h"
32 #include <helper/binarybuffer.h>
33 #include <helper/command.h>
34
35 #include <stdlib.h>
36 #include <string.h>
37 #include <unistd.h>
38
39 #include "armv8_opcodes.h"
40 #include "target.h"
41 #include "target_type.h"
42 #include "semihosting_common.h"
43
44 static const char * const armv8_state_strings[] = {
45 "AArch32", "Thumb", "Jazelle", "ThumbEE", "AArch64",
46 };
47
48 static const struct {
49 const char *name;
50 unsigned psr;
51 } armv8_mode_data[] = {
52 {
53 .name = "USR",
54 .psr = ARM_MODE_USR,
55 },
56 {
57 .name = "FIQ",
58 .psr = ARM_MODE_FIQ,
59 },
60 {
61 .name = "IRQ",
62 .psr = ARM_MODE_IRQ,
63 },
64 {
65 .name = "SVC",
66 .psr = ARM_MODE_SVC,
67 },
68 {
69 .name = "MON",
70 .psr = ARM_MODE_MON,
71 },
72 {
73 .name = "ABT",
74 .psr = ARM_MODE_ABT,
75 },
76 {
77 .name = "EL0T",
78 .psr = ARMV8_64_EL0T,
79 },
80 {
81 .name = "EL1T",
82 .psr = ARMV8_64_EL1T,
83 },
84 {
85 .name = "EL1H",
86 .psr = ARMV8_64_EL1H,
87 },
88 {
89 .name = "EL2T",
90 .psr = ARMV8_64_EL2T,
91 },
92 {
93 .name = "EL2H",
94 .psr = ARMV8_64_EL2H,
95 },
96 {
97 .name = "EL3T",
98 .psr = ARMV8_64_EL3T,
99 },
100 {
101 .name = "EL3H",
102 .psr = ARMV8_64_EL3H,
103 },
104 };
105
106 /** Map PSR mode bits to the name of an ARM processor operating mode. */
107 const char *armv8_mode_name(unsigned psr_mode)
108 {
109 for (unsigned i = 0; i < ARRAY_SIZE(armv8_mode_data); i++) {
110 if (armv8_mode_data[i].psr == psr_mode)
111 return armv8_mode_data[i].name;
112 }
113 LOG_ERROR("unrecognized psr mode: %#02x", psr_mode);
114 return "UNRECOGNIZED";
115 }
116
117 static int armv8_read_reg(struct armv8_common *armv8, int regnum, uint64_t *regval)
118 {
119 struct arm_dpm *dpm = &armv8->dpm;
120 int retval;
121 uint32_t value;
122 uint64_t value_64;
123
124 switch (regnum) {
125 case 0 ... 30:
126 retval = dpm->instr_read_data_dcc_64(dpm,
127 ARMV8_MSR_GP(SYSTEM_DBG_DBGDTR_EL0, regnum), &value_64);
128 break;
129 case ARMV8_SP:
130 retval = dpm->instr_read_data_r0_64(dpm,
131 ARMV8_MOVFSP_64(0), &value_64);
132 break;
133 case ARMV8_PC:
134 retval = dpm->instr_read_data_r0_64(dpm,
135 ARMV8_MRS_DLR(0), &value_64);
136 break;
137 case ARMV8_xPSR:
138 retval = dpm->instr_read_data_r0(dpm,
139 ARMV8_MRS_DSPSR(0), &value);
140 value_64 = value;
141 break;
142 case ARMV8_FPSR:
143 retval = dpm->instr_read_data_r0(dpm,
144 ARMV8_MRS_FPSR(0), &value);
145 value_64 = value;
146 break;
147 case ARMV8_FPCR:
148 retval = dpm->instr_read_data_r0(dpm,
149 ARMV8_MRS_FPCR(0), &value);
150 value_64 = value;
151 break;
152 case ARMV8_ELR_EL1:
153 retval = dpm->instr_read_data_r0_64(dpm,
154 ARMV8_MRS(SYSTEM_ELR_EL1, 0), &value_64);
155 break;
156 case ARMV8_ELR_EL2:
157 retval = dpm->instr_read_data_r0_64(dpm,
158 ARMV8_MRS(SYSTEM_ELR_EL2, 0), &value_64);
159 break;
160 case ARMV8_ELR_EL3:
161 retval = dpm->instr_read_data_r0_64(dpm,
162 ARMV8_MRS(SYSTEM_ELR_EL3, 0), &value_64);
163 break;
164 case ARMV8_ESR_EL1:
165 retval = dpm->instr_read_data_r0(dpm,
166 ARMV8_MRS(SYSTEM_ESR_EL1, 0), &value);
167 value_64 = value;
168 break;
169 case ARMV8_ESR_EL2:
170 retval = dpm->instr_read_data_r0(dpm,
171 ARMV8_MRS(SYSTEM_ESR_EL2, 0), &value);
172 value_64 = value;
173 break;
174 case ARMV8_ESR_EL3:
175 retval = dpm->instr_read_data_r0(dpm,
176 ARMV8_MRS(SYSTEM_ESR_EL3, 0), &value);
177 value_64 = value;
178 break;
179 case ARMV8_SPSR_EL1:
180 retval = dpm->instr_read_data_r0(dpm,
181 ARMV8_MRS(SYSTEM_SPSR_EL1, 0), &value);
182 value_64 = value;
183 break;
184 case ARMV8_SPSR_EL2:
185 retval = dpm->instr_read_data_r0(dpm,
186 ARMV8_MRS(SYSTEM_SPSR_EL2, 0), &value);
187 value_64 = value;
188 break;
189 case ARMV8_SPSR_EL3:
190 retval = dpm->instr_read_data_r0(dpm,
191 ARMV8_MRS(SYSTEM_SPSR_EL3, 0), &value);
192 value_64 = value;
193 break;
194 default:
195 retval = ERROR_FAIL;
196 break;
197 }
198
199 if (retval == ERROR_OK && regval != NULL)
200 *regval = value_64;
201 else
202 retval = ERROR_FAIL;
203
204 return retval;
205 }
206
207 static int armv8_read_reg_simdfp_aarch64(struct armv8_common *armv8, int regnum, uint64_t *lvalue, uint64_t *hvalue)
208 {
209 int retval = ERROR_FAIL;
210 struct arm_dpm *dpm = &armv8->dpm;
211
212 switch (regnum) {
213 case ARMV8_V0 ... ARMV8_V31:
214 retval = dpm->instr_read_data_r0_64(dpm,
215 ARMV8_MOV_GPR_VFP(0, (regnum - ARMV8_V0), 1), hvalue);
216 if (retval != ERROR_OK)
217 return retval;
218 retval = dpm->instr_read_data_r0_64(dpm,
219 ARMV8_MOV_GPR_VFP(0, (regnum - ARMV8_V0), 0), lvalue);
220 break;
221
222 default:
223 retval = ERROR_FAIL;
224 break;
225 }
226
227 return retval;
228 }
229
230 static int armv8_write_reg(struct armv8_common *armv8, int regnum, uint64_t value_64)
231 {
232 struct arm_dpm *dpm = &armv8->dpm;
233 int retval;
234 uint32_t value;
235
236 switch (regnum) {
237 case 0 ... 30:
238 retval = dpm->instr_write_data_dcc_64(dpm,
239 ARMV8_MRS(SYSTEM_DBG_DBGDTR_EL0, regnum),
240 value_64);
241 break;
242 case ARMV8_SP:
243 retval = dpm->instr_write_data_r0_64(dpm,
244 ARMV8_MOVTSP_64(0),
245 value_64);
246 break;
247 case ARMV8_PC:
248 retval = dpm->instr_write_data_r0_64(dpm,
249 ARMV8_MSR_DLR(0),
250 value_64);
251 break;
252 case ARMV8_xPSR:
253 value = value_64;
254 retval = dpm->instr_write_data_r0(dpm,
255 ARMV8_MSR_DSPSR(0),
256 value);
257 break;
258 case ARMV8_FPSR:
259 value = value_64;
260 retval = dpm->instr_write_data_r0(dpm,
261 ARMV8_MSR_FPSR(0),
262 value);
263 break;
264 case ARMV8_FPCR:
265 value = value_64;
266 retval = dpm->instr_write_data_r0(dpm,
267 ARMV8_MSR_FPCR(0),
268 value);
269 break;
270 /* registers clobbered by taking exception in debug state */
271 case ARMV8_ELR_EL1:
272 retval = dpm->instr_write_data_r0_64(dpm,
273 ARMV8_MSR_GP(SYSTEM_ELR_EL1, 0), value_64);
274 break;
275 case ARMV8_ELR_EL2:
276 retval = dpm->instr_write_data_r0_64(dpm,
277 ARMV8_MSR_GP(SYSTEM_ELR_EL2, 0), value_64);
278 break;
279 case ARMV8_ELR_EL3:
280 retval = dpm->instr_write_data_r0_64(dpm,
281 ARMV8_MSR_GP(SYSTEM_ELR_EL3, 0), value_64);
282 break;
283 case ARMV8_ESR_EL1:
284 value = value_64;
285 retval = dpm->instr_write_data_r0(dpm,
286 ARMV8_MSR_GP(SYSTEM_ESR_EL1, 0), value);
287 break;
288 case ARMV8_ESR_EL2:
289 value = value_64;
290 retval = dpm->instr_write_data_r0(dpm,
291 ARMV8_MSR_GP(SYSTEM_ESR_EL2, 0), value);
292 break;
293 case ARMV8_ESR_EL3:
294 value = value_64;
295 retval = dpm->instr_write_data_r0(dpm,
296 ARMV8_MSR_GP(SYSTEM_ESR_EL3, 0), value);
297 break;
298 case ARMV8_SPSR_EL1:
299 value = value_64;
300 retval = dpm->instr_write_data_r0(dpm,
301 ARMV8_MSR_GP(SYSTEM_SPSR_EL1, 0), value);
302 break;
303 case ARMV8_SPSR_EL2:
304 value = value_64;
305 retval = dpm->instr_write_data_r0(dpm,
306 ARMV8_MSR_GP(SYSTEM_SPSR_EL2, 0), value);
307 break;
308 case ARMV8_SPSR_EL3:
309 value = value_64;
310 retval = dpm->instr_write_data_r0(dpm,
311 ARMV8_MSR_GP(SYSTEM_SPSR_EL3, 0), value);
312 break;
313 default:
314 retval = ERROR_FAIL;
315 break;
316 }
317
318 return retval;
319 }
320
321 static int armv8_write_reg_simdfp_aarch64(struct armv8_common *armv8, int regnum, uint64_t lvalue, uint64_t hvalue)
322 {
323 int retval = ERROR_FAIL;
324 struct arm_dpm *dpm = &armv8->dpm;
325
326 switch (regnum) {
327 case ARMV8_V0 ... ARMV8_V31:
328 retval = dpm->instr_write_data_r0_64(dpm,
329 ARMV8_MOV_VFP_GPR((regnum - ARMV8_V0), 0, 1), hvalue);
330 if (retval != ERROR_OK)
331 return retval;
332 retval = dpm->instr_write_data_r0_64(dpm,
333 ARMV8_MOV_VFP_GPR((regnum - ARMV8_V0), 0, 0), lvalue);
334 break;
335
336 default:
337 retval = ERROR_FAIL;
338 break;
339 }
340
341 return retval;
342 }
343
344 static int armv8_read_reg32(struct armv8_common *armv8, int regnum, uint64_t *regval)
345 {
346 struct arm_dpm *dpm = &armv8->dpm;
347 uint32_t value = 0;
348 int retval;
349
350 switch (regnum) {
351 case ARMV8_R0 ... ARMV8_R14:
352 /* return via DCC: "MCR p14, 0, Rnum, c0, c5, 0" */
353 retval = dpm->instr_read_data_dcc(dpm,
354 ARMV4_5_MCR(14, 0, regnum, 0, 5, 0),
355 &value);
356 break;
357 case ARMV8_SP:
358 retval = dpm->instr_read_data_dcc(dpm,
359 ARMV4_5_MCR(14, 0, 13, 0, 5, 0),
360 &value);
361 break;
362 case ARMV8_PC:
363 retval = dpm->instr_read_data_r0(dpm,
364 ARMV8_MRC_DLR(0),
365 &value);
366 break;
367 case ARMV8_xPSR:
368 retval = dpm->instr_read_data_r0(dpm,
369 ARMV8_MRC_DSPSR(0),
370 &value);
371 break;
372 case ARMV8_ELR_EL1: /* mapped to LR_svc */
373 retval = dpm->instr_read_data_dcc(dpm,
374 ARMV4_5_MCR(14, 0, 14, 0, 5, 0),
375 &value);
376 break;
377 case ARMV8_ELR_EL2: /* mapped to ELR_hyp */
378 retval = dpm->instr_read_data_r0(dpm,
379 ARMV8_MRS_T1(0, 14, 0, 1),
380 &value);
381 break;
382 case ARMV8_ELR_EL3: /* mapped to LR_mon */
383 retval = dpm->instr_read_data_dcc(dpm,
384 ARMV4_5_MCR(14, 0, 14, 0, 5, 0),
385 &value);
386 break;
387 case ARMV8_ESR_EL1: /* mapped to DFSR */
388 retval = dpm->instr_read_data_r0(dpm,
389 ARMV4_5_MRC(15, 0, 0, 5, 0, 0),
390 &value);
391 break;
392 case ARMV8_ESR_EL2: /* mapped to HSR */
393 retval = dpm->instr_read_data_r0(dpm,
394 ARMV4_5_MRC(15, 4, 0, 5, 2, 0),
395 &value);
396 break;
397 case ARMV8_ESR_EL3: /* FIXME: no equivalent in aarch32? */
398 retval = ERROR_FAIL;
399 break;
400 case ARMV8_SPSR_EL1: /* mapped to SPSR_svc */
401 retval = dpm->instr_read_data_r0(dpm,
402 ARMV8_MRS_xPSR_T1(1, 0),
403 &value);
404 break;
405 case ARMV8_SPSR_EL2: /* mapped to SPSR_hyp */
406 retval = dpm->instr_read_data_r0(dpm,
407 ARMV8_MRS_xPSR_T1(1, 0),
408 &value);
409 break;
410 case ARMV8_SPSR_EL3: /* mapped to SPSR_mon */
411 retval = dpm->instr_read_data_r0(dpm,
412 ARMV8_MRS_xPSR_T1(1, 0),
413 &value);
414 break;
415 case ARMV8_FPSR:
416 /* "VMRS r0, FPSCR"; then return via DCC */
417 retval = dpm->instr_read_data_r0(dpm,
418 ARMV4_5_VMRS(0), &value);
419 break;
420 default:
421 retval = ERROR_FAIL;
422 break;
423 }
424
425 if (retval == ERROR_OK && regval != NULL)
426 *regval = value;
427
428 return retval;
429 }
430
431 static int armv8_read_reg_simdfp_aarch32(struct armv8_common *armv8, int regnum, uint64_t *lvalue, uint64_t *hvalue)
432 {
433 int retval = ERROR_FAIL;
434 struct arm_dpm *dpm = &armv8->dpm;
435 struct reg *reg_r1 = dpm->arm->core_cache->reg_list + ARMV8_R1;
436 uint32_t value_r0 = 0, value_r1 = 0;
437 unsigned num = (regnum - ARMV8_V0) << 1;
438
439 switch (regnum) {
440 case ARMV8_V0 ... ARMV8_V15:
441 /* we are going to write R1, mark it dirty */
442 reg_r1->dirty = true;
443 /* move from double word register to r0:r1: "vmov r0, r1, vm"
444 * then read r0 via dcc
445 */
446 retval = dpm->instr_read_data_r0(dpm,
447 ARMV4_5_VMOV(1, 1, 0, (num >> 4), (num & 0xf)),
448 &value_r0);
449 /* read r1 via dcc */
450 retval = dpm->instr_read_data_dcc(dpm,
451 ARMV4_5_MCR(14, 0, 1, 0, 5, 0),
452 &value_r1);
453 if (retval == ERROR_OK) {
454 *lvalue = value_r1;
455 *lvalue = ((*lvalue) << 32) | value_r0;
456 } else
457 return retval;
458
459 num++;
460 /* repeat above steps for high 64 bits of V register */
461 retval = dpm->instr_read_data_r0(dpm,
462 ARMV4_5_VMOV(1, 1, 0, (num >> 4), (num & 0xf)),
463 &value_r0);
464 retval = dpm->instr_read_data_dcc(dpm,
465 ARMV4_5_MCR(14, 0, 1, 0, 5, 0),
466 &value_r1);
467 if (retval == ERROR_OK) {
468 *hvalue = value_r1;
469 *hvalue = ((*hvalue) << 32) | value_r0;
470 } else
471 return retval;
472 break;
473 default:
474 retval = ERROR_FAIL;
475 break;
476 }
477
478 return retval;
479 }
480
481 static int armv8_write_reg32(struct armv8_common *armv8, int regnum, uint64_t value)
482 {
483 struct arm_dpm *dpm = &armv8->dpm;
484 int retval;
485
486 switch (regnum) {
487 case ARMV8_R0 ... ARMV8_R14:
488 /* load register from DCC: "MRC p14, 0, Rnum, c0, c5, 0" */
489 retval = dpm->instr_write_data_dcc(dpm,
490 ARMV4_5_MRC(14, 0, regnum, 0, 5, 0), value);
491 break;
492 case ARMV8_SP:
493 retval = dpm->instr_write_data_dcc(dpm,
494 ARMV4_5_MRC(14, 0, 13, 0, 5, 0), value);
495 break;
496 case ARMV8_PC:/* PC
497 * read r0 from DCC; then "MOV pc, r0" */
498 retval = dpm->instr_write_data_r0(dpm,
499 ARMV8_MCR_DLR(0), value);
500 break;
501 case ARMV8_xPSR: /* CPSR */
502 /* read r0 from DCC, then "MCR r0, DSPSR" */
503 retval = dpm->instr_write_data_r0(dpm,
504 ARMV8_MCR_DSPSR(0), value);
505 break;
506 case ARMV8_ELR_EL1: /* mapped to LR_svc */
507 retval = dpm->instr_write_data_dcc(dpm,
508 ARMV4_5_MRC(14, 0, 14, 0, 5, 0),
509 value);
510 break;
511 case ARMV8_ELR_EL2: /* mapped to ELR_hyp */
512 retval = dpm->instr_write_data_r0(dpm,
513 ARMV8_MSR_GP_T1(0, 14, 0, 1),
514 value);
515 break;
516 case ARMV8_ELR_EL3: /* mapped to LR_mon */
517 retval = dpm->instr_write_data_dcc(dpm,
518 ARMV4_5_MRC(14, 0, 14, 0, 5, 0),
519 value);
520 break;
521 case ARMV8_ESR_EL1: /* mapped to DFSR */
522 retval = dpm->instr_write_data_r0(dpm,
523 ARMV4_5_MCR(15, 0, 0, 5, 0, 0),
524 value);
525 break;
526 case ARMV8_ESR_EL2: /* mapped to HSR */
527 retval = dpm->instr_write_data_r0(dpm,
528 ARMV4_5_MCR(15, 4, 0, 5, 2, 0),
529 value);
530 break;
531 case ARMV8_ESR_EL3: /* FIXME: no equivalent in aarch32? */
532 retval = ERROR_FAIL;
533 break;
534 case ARMV8_SPSR_EL1: /* mapped to SPSR_svc */
535 retval = dpm->instr_write_data_r0(dpm,
536 ARMV8_MSR_GP_xPSR_T1(1, 0, 15),
537 value);
538 break;
539 case ARMV8_SPSR_EL2: /* mapped to SPSR_hyp */
540 retval = dpm->instr_write_data_r0(dpm,
541 ARMV8_MSR_GP_xPSR_T1(1, 0, 15),
542 value);
543 break;
544 case ARMV8_SPSR_EL3: /* mapped to SPSR_mon */
545 retval = dpm->instr_write_data_r0(dpm,
546 ARMV8_MSR_GP_xPSR_T1(1, 0, 15),
547 value);
548 break;
549 case ARMV8_FPSR:
550 /* move to r0 from DCC, then "VMSR FPSCR, r0" */
551 retval = dpm->instr_write_data_r0(dpm,
552 ARMV4_5_VMSR(0), value);
553 break;
554 default:
555 retval = ERROR_FAIL;
556 break;
557 }
558
559 return retval;
560
561 }
562
563 static int armv8_write_reg_simdfp_aarch32(struct armv8_common *armv8, int regnum, uint64_t lvalue, uint64_t hvalue)
564 {
565 int retval = ERROR_FAIL;
566 struct arm_dpm *dpm = &armv8->dpm;
567 struct reg *reg_r1 = dpm->arm->core_cache->reg_list + ARMV8_R1;
568 uint32_t value_r0 = 0, value_r1 = 0;
569 unsigned num = (regnum - ARMV8_V0) << 1;
570
571 switch (regnum) {
572 case ARMV8_V0 ... ARMV8_V15:
573 /* we are going to write R1, mark it dirty */
574 reg_r1->dirty = true;
575 value_r1 = lvalue >> 32;
576 value_r0 = lvalue & 0xFFFFFFFF;
577 /* write value_r1 to r1 via dcc */
578 retval = dpm->instr_write_data_dcc(dpm,
579 ARMV4_5_MRC(14, 0, 1, 0, 5, 0),
580 value_r1);
581 /* write value_r0 to r0 via dcc then,
582 * move to double word register from r0:r1: "vmov vm, r0, r1"
583 */
584 retval = dpm->instr_write_data_r0(dpm,
585 ARMV4_5_VMOV(0, 1, 0, (num >> 4), (num & 0xf)),
586 value_r0);
587
588 num++;
589 /* repeat above steps for high 64 bits of V register */
590 value_r1 = hvalue >> 32;
591 value_r0 = hvalue & 0xFFFFFFFF;
592 retval = dpm->instr_write_data_dcc(dpm,
593 ARMV4_5_MRC(14, 0, 1, 0, 5, 0),
594 value_r1);
595 retval = dpm->instr_write_data_r0(dpm,
596 ARMV4_5_VMOV(0, 1, 0, (num >> 4), (num & 0xf)),
597 value_r0);
598 break;
599 default:
600 retval = ERROR_FAIL;
601 break;
602 }
603
604 return retval;
605 }
606
607 void armv8_select_reg_access(struct armv8_common *armv8, bool is_aarch64)
608 {
609 if (is_aarch64) {
610 armv8->read_reg_u64 = armv8_read_reg;
611 armv8->write_reg_u64 = armv8_write_reg;
612 armv8->read_reg_u128 = armv8_read_reg_simdfp_aarch64;
613 armv8->write_reg_u128 = armv8_write_reg_simdfp_aarch64;
614
615 } else {
616 armv8->read_reg_u64 = armv8_read_reg32;
617 armv8->write_reg_u64 = armv8_write_reg32;
618 armv8->read_reg_u128 = armv8_read_reg_simdfp_aarch32;
619 armv8->write_reg_u128 = armv8_write_reg_simdfp_aarch32;
620 }
621 }
622
623 /* retrieve core id cluster id */
624 int armv8_read_mpidr(struct armv8_common *armv8)
625 {
626 int retval = ERROR_FAIL;
627 struct arm *arm = &armv8->arm;
628 struct arm_dpm *dpm = armv8->arm.dpm;
629 uint32_t mpidr;
630
631 retval = dpm->prepare(dpm);
632 if (retval != ERROR_OK)
633 goto done;
634
635 /* check if we're in an unprivileged mode */
636 if (armv8_curel_from_core_mode(arm->core_mode) < SYSTEM_CUREL_EL1) {
637 retval = armv8_dpm_modeswitch(dpm, ARMV8_64_EL1H);
638 if (retval != ERROR_OK)
639 return retval;
640 }
641
642 retval = dpm->instr_read_data_r0(dpm, armv8_opcode(armv8, READ_REG_MPIDR), &mpidr);
643 if (retval != ERROR_OK)
644 goto done;
645 if (mpidr & 1<<31) {
646 armv8->multi_processor_system = (mpidr >> 30) & 1;
647 armv8->cluster_id = (mpidr >> 8) & 0xf;
648 armv8->cpu_id = mpidr & 0x3;
649 LOG_INFO("%s cluster %x core %x %s", target_name(armv8->arm.target),
650 armv8->cluster_id,
651 armv8->cpu_id,
652 armv8->multi_processor_system == 0 ? "multi core" : "single core");
653 } else
654 LOG_ERROR("mpidr not in multiprocessor format");
655
656 done:
657 armv8_dpm_modeswitch(dpm, ARM_MODE_ANY);
658 dpm->finish(dpm);
659 return retval;
660 }
661
662 /**
663 * Configures host-side ARM records to reflect the specified CPSR.
664 * Later, code can use arm_reg_current() to map register numbers
665 * according to how they are exposed by this mode.
666 */
667 void armv8_set_cpsr(struct arm *arm, uint32_t cpsr)
668 {
669 uint32_t mode = cpsr & 0x1F;
670
671 /* NOTE: this may be called very early, before the register
672 * cache is set up. We can't defend against many errors, in
673 * particular against CPSRs that aren't valid *here* ...
674 */
675 if (arm->cpsr) {
676 buf_set_u32(arm->cpsr->value, 0, 32, cpsr);
677 arm->cpsr->valid = 1;
678 arm->cpsr->dirty = 0;
679 }
680
681 /* Older ARMs won't have the J bit */
682 enum arm_state state = 0xFF;
683
684 if ((cpsr & 0x10) != 0) {
685 /* Aarch32 state */
686 if (cpsr & (1 << 5)) { /* T */
687 if (cpsr & (1 << 24)) { /* J */
688 LOG_WARNING("ThumbEE -- incomplete support");
689 state = ARM_STATE_THUMB_EE;
690 } else
691 state = ARM_STATE_THUMB;
692 } else {
693 if (cpsr & (1 << 24)) { /* J */
694 LOG_ERROR("Jazelle state handling is BROKEN!");
695 state = ARM_STATE_JAZELLE;
696 } else
697 state = ARM_STATE_ARM;
698 }
699 } else {
700 /* Aarch64 state */
701 state = ARM_STATE_AARCH64;
702 }
703
704 arm->core_state = state;
705 arm->core_mode = mode;
706
707 LOG_DEBUG("set CPSR %#8.8x: %s mode, %s state", (unsigned) cpsr,
708 armv8_mode_name(arm->core_mode),
709 armv8_state_strings[arm->core_state]);
710 }
711
712 static void armv8_show_fault_registers32(struct armv8_common *armv8)
713 {
714 uint32_t dfsr, ifsr, dfar, ifar;
715 struct arm_dpm *dpm = armv8->arm.dpm;
716 int retval;
717
718 retval = dpm->prepare(dpm);
719 if (retval != ERROR_OK)
720 return;
721
722 /* ARMV4_5_MRC(cpnum, op1, r0, CRn, CRm, op2) */
723
724 /* c5/c0 - {data, instruction} fault status registers */
725 retval = dpm->instr_read_data_r0(dpm,
726 ARMV4_5_MRC(15, 0, 0, 5, 0, 0),
727 &dfsr);
728 if (retval != ERROR_OK)
729 goto done;
730
731 retval = dpm->instr_read_data_r0(dpm,
732 ARMV4_5_MRC(15, 0, 0, 5, 0, 1),
733 &ifsr);
734 if (retval != ERROR_OK)
735 goto done;
736
737 /* c6/c0 - {data, instruction} fault address registers */
738 retval = dpm->instr_read_data_r0(dpm,
739 ARMV4_5_MRC(15, 0, 0, 6, 0, 0),
740 &dfar);
741 if (retval != ERROR_OK)
742 goto done;
743
744 retval = dpm->instr_read_data_r0(dpm,
745 ARMV4_5_MRC(15, 0, 0, 6, 0, 2),
746 &ifar);
747 if (retval != ERROR_OK)
748 goto done;
749
750 LOG_USER("Data fault registers DFSR: %8.8" PRIx32
751 ", DFAR: %8.8" PRIx32, dfsr, dfar);
752 LOG_USER("Instruction fault registers IFSR: %8.8" PRIx32
753 ", IFAR: %8.8" PRIx32, ifsr, ifar);
754
755 done:
756 /* (void) */ dpm->finish(dpm);
757 }
758
759 static __attribute__((unused)) void armv8_show_fault_registers(struct target *target)
760 {
761 struct armv8_common *armv8 = target_to_armv8(target);
762
763 if (armv8->arm.core_state != ARM_STATE_AARCH64)
764 armv8_show_fault_registers32(armv8);
765 }
766
767 static uint8_t armv8_pa_size(uint32_t ps)
768 {
769 uint8_t ret = 0;
770 switch (ps) {
771 case 0:
772 ret = 32;
773 break;
774 case 1:
775 ret = 36;
776 break;
777 case 2:
778 ret = 40;
779 break;
780 case 3:
781 ret = 42;
782 break;
783 case 4:
784 ret = 44;
785 break;
786 case 5:
787 ret = 48;
788 break;
789 default:
790 LOG_INFO("Unknow physicall address size");
791 break;
792 }
793 return ret;
794 }
795
796 static __attribute__((unused)) int armv8_read_ttbcr32(struct target *target)
797 {
798 struct armv8_common *armv8 = target_to_armv8(target);
799 struct arm_dpm *dpm = armv8->arm.dpm;
800 uint32_t ttbcr, ttbcr_n;
801 int retval = dpm->prepare(dpm);
802 if (retval != ERROR_OK)
803 goto done;
804 /* MRC p15,0,<Rt>,c2,c0,2 ; Read CP15 Translation Table Base Control Register*/
805 retval = dpm->instr_read_data_r0(dpm,
806 ARMV4_5_MRC(15, 0, 0, 2, 0, 2),
807 &ttbcr);
808 if (retval != ERROR_OK)
809 goto done;
810
811 LOG_DEBUG("ttbcr %" PRIx32, ttbcr);
812
813 ttbcr_n = ttbcr & 0x7;
814 armv8->armv8_mmu.ttbcr = ttbcr;
815
816 /*
817 * ARM Architecture Reference Manual (ARMv7-A and ARMv7-Redition),
818 * document # ARM DDI 0406C
819 */
820 armv8->armv8_mmu.ttbr_range[0] = 0xffffffff >> ttbcr_n;
821 armv8->armv8_mmu.ttbr_range[1] = 0xffffffff;
822 armv8->armv8_mmu.ttbr_mask[0] = 0xffffffff << (14 - ttbcr_n);
823 armv8->armv8_mmu.ttbr_mask[1] = 0xffffffff << 14;
824
825 LOG_DEBUG("ttbr1 %s, ttbr0_mask %" PRIx32 " ttbr1_mask %" PRIx32,
826 (ttbcr_n != 0) ? "used" : "not used",
827 armv8->armv8_mmu.ttbr_mask[0],
828 armv8->armv8_mmu.ttbr_mask[1]);
829
830 done:
831 dpm->finish(dpm);
832 return retval;
833 }
834
835 static __attribute__((unused)) int armv8_read_ttbcr(struct target *target)
836 {
837 struct armv8_common *armv8 = target_to_armv8(target);
838 struct arm_dpm *dpm = armv8->arm.dpm;
839 struct arm *arm = &armv8->arm;
840 uint32_t ttbcr;
841 uint64_t ttbcr_64;
842
843 int retval = dpm->prepare(dpm);
844 if (retval != ERROR_OK)
845 goto done;
846
847 /* claaer ttrr1_used and ttbr0_mask */
848 memset(&armv8->armv8_mmu.ttbr1_used, 0, sizeof(armv8->armv8_mmu.ttbr1_used));
849 memset(&armv8->armv8_mmu.ttbr0_mask, 0, sizeof(armv8->armv8_mmu.ttbr0_mask));
850
851 switch (armv8_curel_from_core_mode(arm->core_mode)) {
852 case SYSTEM_CUREL_EL3:
853 retval = dpm->instr_read_data_r0(dpm,
854 ARMV8_MRS(SYSTEM_TCR_EL3, 0),
855 &ttbcr);
856 retval += dpm->instr_read_data_r0_64(dpm,
857 ARMV8_MRS(SYSTEM_TTBR0_EL3, 0),
858 &armv8->ttbr_base);
859 if (retval != ERROR_OK)
860 goto done;
861 armv8->va_size = 64 - (ttbcr & 0x3F);
862 armv8->pa_size = armv8_pa_size((ttbcr >> 16) & 7);
863 armv8->page_size = (ttbcr >> 14) & 3;
864 break;
865 case SYSTEM_CUREL_EL2:
866 retval = dpm->instr_read_data_r0(dpm,
867 ARMV8_MRS(SYSTEM_TCR_EL2, 0),
868 &ttbcr);
869 retval += dpm->instr_read_data_r0_64(dpm,
870 ARMV8_MRS(SYSTEM_TTBR0_EL2, 0),
871 &armv8->ttbr_base);
872 if (retval != ERROR_OK)
873 goto done;
874 armv8->va_size = 64 - (ttbcr & 0x3F);
875 armv8->pa_size = armv8_pa_size((ttbcr >> 16) & 7);
876 armv8->page_size = (ttbcr >> 14) & 3;
877 break;
878 case SYSTEM_CUREL_EL0:
879 armv8_dpm_modeswitch(dpm, ARMV8_64_EL1H);
880 /* fall through */
881 case SYSTEM_CUREL_EL1:
882 retval = dpm->instr_read_data_r0_64(dpm,
883 ARMV8_MRS(SYSTEM_TCR_EL1, 0),
884 &ttbcr_64);
885 armv8->va_size = 64 - (ttbcr_64 & 0x3F);
886 armv8->pa_size = armv8_pa_size((ttbcr_64 >> 32) & 7);
887 armv8->page_size = (ttbcr_64 >> 14) & 3;
888 armv8->armv8_mmu.ttbr1_used = (((ttbcr_64 >> 16) & 0x3F) != 0) ? 1 : 0;
889 armv8->armv8_mmu.ttbr0_mask = 0x0000FFFFFFFFFFFF;
890 retval += dpm->instr_read_data_r0_64(dpm,
891 ARMV8_MRS(SYSTEM_TTBR0_EL1 | (armv8->armv8_mmu.ttbr1_used), 0),
892 &armv8->ttbr_base);
893 if (retval != ERROR_OK)
894 goto done;
895 break;
896 default:
897 LOG_ERROR("unknow core state");
898 retval = ERROR_FAIL;
899 break;
900 }
901 if (retval != ERROR_OK)
902 goto done;
903
904 if (armv8->armv8_mmu.ttbr1_used == 1)
905 LOG_INFO("TTBR0 access above %" PRIx64, (uint64_t)(armv8->armv8_mmu.ttbr0_mask));
906
907 done:
908 armv8_dpm_modeswitch(dpm, ARM_MODE_ANY);
909 dpm->finish(dpm);
910 return retval;
911 }
912
913 /* method adapted to cortex A : reused arm v4 v5 method*/
914 int armv8_mmu_translate_va(struct target *target, target_addr_t va, target_addr_t *val)
915 {
916 return ERROR_OK;
917 }
918
919 /* V8 method VA TO PA */
920 int armv8_mmu_translate_va_pa(struct target *target, target_addr_t va,
921 target_addr_t *val, int meminfo)
922 {
923 struct armv8_common *armv8 = target_to_armv8(target);
924 struct arm *arm = target_to_arm(target);
925 struct arm_dpm *dpm = &armv8->dpm;
926 enum arm_mode target_mode = ARM_MODE_ANY;
927 uint32_t retval;
928 uint32_t instr = 0;
929 uint64_t par;
930
931 static const char * const shared_name[] = {
932 "Non-", "UNDEFINED ", "Outer ", "Inner "
933 };
934
935 static const char * const secure_name[] = {
936 "Secure", "Not Secure"
937 };
938
939 retval = dpm->prepare(dpm);
940 if (retval != ERROR_OK)
941 return retval;
942
943 switch (armv8_curel_from_core_mode(arm->core_mode)) {
944 case SYSTEM_CUREL_EL0:
945 instr = ARMV8_SYS(SYSTEM_ATS12E0R, 0);
946 /* can only execute instruction at EL2 */
947 target_mode = ARMV8_64_EL2H;
948 break;
949 case SYSTEM_CUREL_EL1:
950 instr = ARMV8_SYS(SYSTEM_ATS12E1R, 0);
951 /* can only execute instruction at EL2 */
952 target_mode = ARMV8_64_EL2H;
953 break;
954 case SYSTEM_CUREL_EL2:
955 instr = ARMV8_SYS(SYSTEM_ATS1E2R, 0);
956 break;
957 case SYSTEM_CUREL_EL3:
958 instr = ARMV8_SYS(SYSTEM_ATS1E3R, 0);
959 break;
960
961 default:
962 break;
963 };
964
965 if (target_mode != ARM_MODE_ANY)
966 armv8_dpm_modeswitch(dpm, target_mode);
967
968 /* write VA to R0 and execute translation instruction */
969 retval = dpm->instr_write_data_r0_64(dpm, instr, (uint64_t)va);
970 /* read result from PAR_EL1 */
971 if (retval == ERROR_OK)
972 retval = dpm->instr_read_data_r0_64(dpm, ARMV8_MRS(SYSTEM_PAR_EL1, 0), &par);
973
974 /* switch back to saved PE mode */
975 if (target_mode != ARM_MODE_ANY)
976 armv8_dpm_modeswitch(dpm, ARM_MODE_ANY);
977
978 dpm->finish(dpm);
979
980 if (retval != ERROR_OK)
981 return retval;
982
983 if (par & 1) {
984 LOG_ERROR("Address translation failed at stage %i, FST=%x, PTW=%i",
985 ((int)(par >> 9) & 1)+1, (int)(par >> 1) & 0x3f, (int)(par >> 8) & 1);
986
987 *val = 0;
988 retval = ERROR_FAIL;
989 } else {
990 *val = (par & 0xFFFFFFFFF000UL) | (va & 0xFFF);
991 if (meminfo) {
992 int SH = (par >> 7) & 3;
993 int NS = (par >> 9) & 1;
994 int ATTR = (par >> 56) & 0xFF;
995
996 char *memtype = (ATTR & 0xF0) == 0 ? "Device Memory" : "Normal Memory";
997
998 LOG_USER("%sshareable, %s",
999 shared_name[SH], secure_name[NS]);
1000 LOG_USER("%s", memtype);
1001 }
1002 }
1003
1004 return retval;
1005 }
1006
1007 int armv8_handle_cache_info_command(struct command_context *cmd_ctx,
1008 struct armv8_cache_common *armv8_cache)
1009 {
1010 if (armv8_cache->info == -1) {
1011 command_print(cmd_ctx, "cache not yet identified");
1012 return ERROR_OK;
1013 }
1014
1015 if (armv8_cache->display_cache_info)
1016 armv8_cache->display_cache_info(cmd_ctx, armv8_cache);
1017 return ERROR_OK;
1018 }
1019
1020 static int armv8_setup_semihosting(struct target *target, int enable)
1021 {
1022 struct arm *arm = target_to_arm(target);
1023
1024 if (arm->core_state != ARM_STATE_AARCH64) {
1025 LOG_ERROR("semihosting only supported in AArch64 state\n");
1026 return ERROR_FAIL;
1027 }
1028
1029 return ERROR_OK;
1030 }
1031
1032 int armv8_init_arch_info(struct target *target, struct armv8_common *armv8)
1033 {
1034 struct arm *arm = &armv8->arm;
1035 arm->arch_info = armv8;
1036 target->arch_info = &armv8->arm;
1037 arm->setup_semihosting = armv8_setup_semihosting;
1038 /* target is useful in all function arm v4 5 compatible */
1039 armv8->arm.target = target;
1040 armv8->arm.common_magic = ARM_COMMON_MAGIC;
1041 armv8->common_magic = ARMV8_COMMON_MAGIC;
1042
1043 armv8->armv8_mmu.armv8_cache.l2_cache = NULL;
1044 armv8->armv8_mmu.armv8_cache.info = -1;
1045 armv8->armv8_mmu.armv8_cache.flush_all_data_cache = NULL;
1046 armv8->armv8_mmu.armv8_cache.display_cache_info = NULL;
1047 return ERROR_OK;
1048 }
1049
1050 int armv8_aarch64_state(struct target *target)
1051 {
1052 struct arm *arm = target_to_arm(target);
1053
1054 if (arm->common_magic != ARM_COMMON_MAGIC) {
1055 LOG_ERROR("BUG: called for a non-ARM target");
1056 return ERROR_FAIL;
1057 }
1058
1059 LOG_USER("target halted in %s state due to %s, current mode: %s\n"
1060 "cpsr: 0x%8.8" PRIx32 " pc: 0x%" PRIx64 "%s",
1061 armv8_state_strings[arm->core_state],
1062 debug_reason_name(target),
1063 armv8_mode_name(arm->core_mode),
1064 buf_get_u32(arm->cpsr->value, 0, 32),
1065 buf_get_u64(arm->pc->value, 0, 64),
1066 (target->semihosting && target->semihosting->is_active) ? ", semihosting" : "");
1067
1068 return ERROR_OK;
1069 }
1070
1071 int armv8_arch_state(struct target *target)
1072 {
1073 static const char * const state[] = {
1074 "disabled", "enabled"
1075 };
1076
1077 struct armv8_common *armv8 = target_to_armv8(target);
1078 struct arm *arm = &armv8->arm;
1079
1080 if (armv8->common_magic != ARMV8_COMMON_MAGIC) {
1081 LOG_ERROR("BUG: called for a non-Armv8 target");
1082 return ERROR_COMMAND_SYNTAX_ERROR;
1083 }
1084
1085 if (arm->core_state == ARM_STATE_AARCH64)
1086 armv8_aarch64_state(target);
1087 else
1088 arm_arch_state(target);
1089
1090 LOG_USER("MMU: %s, D-Cache: %s, I-Cache: %s",
1091 state[armv8->armv8_mmu.mmu_enabled],
1092 state[armv8->armv8_mmu.armv8_cache.d_u_cache_enabled],
1093 state[armv8->armv8_mmu.armv8_cache.i_cache_enabled]);
1094
1095 if (arm->core_mode == ARM_MODE_ABT)
1096 armv8_show_fault_registers(target);
1097
1098 if (target->debug_reason == DBG_REASON_WATCHPOINT)
1099 LOG_USER("Watchpoint triggered at PC %#08x",
1100 (unsigned) armv8->dpm.wp_pc);
1101
1102 return ERROR_OK;
1103 }
1104
1105 static struct reg_data_type aarch64_vector_base_types[] = {
1106 {REG_TYPE_IEEE_DOUBLE, "ieee_double", 0, {NULL} },
1107 {REG_TYPE_UINT64, "uint64", 0, {NULL} },
1108 {REG_TYPE_INT64, "int64", 0, {NULL} },
1109 {REG_TYPE_IEEE_SINGLE, "ieee_single", 0, {NULL} },
1110 {REG_TYPE_UINT32, "uint32", 0, {NULL} },
1111 {REG_TYPE_INT32, "int32", 0, {NULL} },
1112 {REG_TYPE_UINT16, "uint16", 0, {NULL} },
1113 {REG_TYPE_INT16, "int16", 0, {NULL} },
1114 {REG_TYPE_UINT8, "uint8", 0, {NULL} },
1115 {REG_TYPE_INT8, "int8", 0, {NULL} },
1116 {REG_TYPE_UINT128, "uint128", 0, {NULL} },
1117 {REG_TYPE_INT128, "int128", 0, {NULL} }
1118 };
1119
1120 static struct reg_data_type_vector aarch64_vector_types[] = {
1121 {aarch64_vector_base_types + 0, 2},
1122 {aarch64_vector_base_types + 1, 2},
1123 {aarch64_vector_base_types + 2, 2},
1124 {aarch64_vector_base_types + 3, 4},
1125 {aarch64_vector_base_types + 4, 4},
1126 {aarch64_vector_base_types + 5, 4},
1127 {aarch64_vector_base_types + 6, 8},
1128 {aarch64_vector_base_types + 7, 8},
1129 {aarch64_vector_base_types + 8, 16},
1130 {aarch64_vector_base_types + 9, 16},
1131 {aarch64_vector_base_types + 10, 01},
1132 {aarch64_vector_base_types + 11, 01},
1133 };
1134
1135 static struct reg_data_type aarch64_fpu_vector[] = {
1136 {REG_TYPE_ARCH_DEFINED, "v2d", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 0} },
1137 {REG_TYPE_ARCH_DEFINED, "v2u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 1} },
1138 {REG_TYPE_ARCH_DEFINED, "v2i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 2} },
1139 {REG_TYPE_ARCH_DEFINED, "v4f", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 3} },
1140 {REG_TYPE_ARCH_DEFINED, "v4u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 4} },
1141 {REG_TYPE_ARCH_DEFINED, "v4i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 5} },
1142 {REG_TYPE_ARCH_DEFINED, "v8u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 6} },
1143 {REG_TYPE_ARCH_DEFINED, "v8i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 7} },
1144 {REG_TYPE_ARCH_DEFINED, "v16u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 8} },
1145 {REG_TYPE_ARCH_DEFINED, "v16i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 9} },
1146 {REG_TYPE_ARCH_DEFINED, "v1u", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 10} },
1147 {REG_TYPE_ARCH_DEFINED, "v1i", REG_TYPE_CLASS_VECTOR, {aarch64_vector_types + 11} },
1148 };
1149
1150 static struct reg_data_type_union_field aarch64_union_fields_vnd[] = {
1151 {"f", aarch64_fpu_vector + 0, aarch64_union_fields_vnd + 1},
1152 {"u", aarch64_fpu_vector + 1, aarch64_union_fields_vnd + 2},
1153 {"s", aarch64_fpu_vector + 2, NULL},
1154 };
1155
1156 static struct reg_data_type_union_field aarch64_union_fields_vns[] = {
1157 {"f", aarch64_fpu_vector + 3, aarch64_union_fields_vns + 1},
1158 {"u", aarch64_fpu_vector + 4, aarch64_union_fields_vns + 2},
1159 {"s", aarch64_fpu_vector + 5, NULL},
1160 };
1161
1162 static struct reg_data_type_union_field aarch64_union_fields_vnh[] = {
1163 {"u", aarch64_fpu_vector + 6, aarch64_union_fields_vnh + 1},
1164 {"s", aarch64_fpu_vector + 7, NULL},
1165 };
1166
1167 static struct reg_data_type_union_field aarch64_union_fields_vnb[] = {
1168 {"u", aarch64_fpu_vector + 8, aarch64_union_fields_vnb + 1},
1169 {"s", aarch64_fpu_vector + 9, NULL},
1170 };
1171
1172 static struct reg_data_type_union_field aarch64_union_fields_vnq[] = {
1173 {"u", aarch64_fpu_vector + 10, aarch64_union_fields_vnq + 1},
1174 {"s", aarch64_fpu_vector + 11, NULL},
1175 };
1176
1177 static struct reg_data_type_union aarch64_union_types[] = {
1178 {aarch64_union_fields_vnd},
1179 {aarch64_union_fields_vns},
1180 {aarch64_union_fields_vnh},
1181 {aarch64_union_fields_vnb},
1182 {aarch64_union_fields_vnq},
1183 };
1184
1185 static struct reg_data_type aarch64_fpu_union[] = {
1186 {REG_TYPE_ARCH_DEFINED, "vnd", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 0} },
1187 {REG_TYPE_ARCH_DEFINED, "vns", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 1} },
1188 {REG_TYPE_ARCH_DEFINED, "vnh", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 2} },
1189 {REG_TYPE_ARCH_DEFINED, "vnb", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 3} },
1190 {REG_TYPE_ARCH_DEFINED, "vnq", REG_TYPE_CLASS_UNION, {.reg_type_union = aarch64_union_types + 4} },
1191 };
1192
1193 static struct reg_data_type_union_field aarch64v_union_fields[] = {
1194 {"d", aarch64_fpu_union + 0, aarch64v_union_fields + 1},
1195 {"s", aarch64_fpu_union + 1, aarch64v_union_fields + 2},
1196 {"h", aarch64_fpu_union + 2, aarch64v_union_fields + 3},
1197 {"b", aarch64_fpu_union + 3, aarch64v_union_fields + 4},
1198 {"q", aarch64_fpu_union + 4, NULL},
1199 };
1200
1201 static struct reg_data_type_union aarch64v_union[] = {
1202 {aarch64v_union_fields}
1203 };
1204
1205 static struct reg_data_type aarch64v[] = {
1206 {REG_TYPE_ARCH_DEFINED, "aarch64v", REG_TYPE_CLASS_UNION,
1207 {.reg_type_union = aarch64v_union} },
1208 };
1209
1210 static struct reg_data_type_bitfield aarch64_cpsr_bits[] = {
1211 { 0, 0 , REG_TYPE_UINT8 },
1212 { 2, 3, REG_TYPE_UINT8 },
1213 { 4, 4 , REG_TYPE_UINT8 },
1214 { 6, 6 , REG_TYPE_BOOL },
1215 { 7, 7 , REG_TYPE_BOOL },
1216 { 8, 8 , REG_TYPE_BOOL },
1217 { 9, 9 , REG_TYPE_BOOL },
1218 { 20, 20, REG_TYPE_BOOL },
1219 { 21, 21, REG_TYPE_BOOL },
1220 { 28, 28, REG_TYPE_BOOL },
1221 { 29, 29, REG_TYPE_BOOL },
1222 { 30, 30, REG_TYPE_BOOL },
1223 { 31, 31, REG_TYPE_BOOL },
1224 };
1225
1226 static struct reg_data_type_flags_field aarch64_cpsr_fields[] = {
1227 { "SP", aarch64_cpsr_bits + 0, aarch64_cpsr_fields + 1 },
1228 { "EL", aarch64_cpsr_bits + 1, aarch64_cpsr_fields + 2 },
1229 { "nRW", aarch64_cpsr_bits + 2, aarch64_cpsr_fields + 3 },
1230 { "F" , aarch64_cpsr_bits + 3, aarch64_cpsr_fields + 4 },
1231 { "I" , aarch64_cpsr_bits + 4, aarch64_cpsr_fields + 5 },
1232 { "A" , aarch64_cpsr_bits + 5, aarch64_cpsr_fields + 6 },
1233 { "D" , aarch64_cpsr_bits + 6, aarch64_cpsr_fields + 7 },
1234 { "IL" , aarch64_cpsr_bits + 7, aarch64_cpsr_fields + 8 },
1235 { "SS" , aarch64_cpsr_bits + 8, aarch64_cpsr_fields + 9 },
1236 { "V" , aarch64_cpsr_bits + 9, aarch64_cpsr_fields + 10 },
1237 { "C" , aarch64_cpsr_bits + 10, aarch64_cpsr_fields + 11 },
1238 { "Z" , aarch64_cpsr_bits + 11, aarch64_cpsr_fields + 12 },
1239 { "N" , aarch64_cpsr_bits + 12, NULL }
1240 };
1241
1242 static struct reg_data_type_flags aarch64_cpsr_flags[] = {
1243 { 4, aarch64_cpsr_fields }
1244 };
1245
1246 static struct reg_data_type aarch64_flags_cpsr[] = {
1247 {REG_TYPE_ARCH_DEFINED, "cpsr_flags", REG_TYPE_CLASS_FLAGS,
1248 {.reg_type_flags = aarch64_cpsr_flags} },
1249 };
1250
1251 static const struct {
1252 unsigned id;
1253 const char *name;
1254 unsigned bits;
1255 enum arm_mode mode;
1256 enum reg_type type;
1257 const char *group;
1258 const char *feature;
1259 struct reg_data_type *data_type;
1260 } armv8_regs[] = {
1261 { ARMV8_R0, "x0", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1262 { ARMV8_R1, "x1", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1263 { ARMV8_R2, "x2", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1264 { ARMV8_R3, "x3", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1265 { ARMV8_R4, "x4", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1266 { ARMV8_R5, "x5", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1267 { ARMV8_R6, "x6", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1268 { ARMV8_R7, "x7", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1269 { ARMV8_R8, "x8", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1270 { ARMV8_R9, "x9", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1271 { ARMV8_R10, "x10", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1272 { ARMV8_R11, "x11", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1273 { ARMV8_R12, "x12", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1274 { ARMV8_R13, "x13", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1275 { ARMV8_R14, "x14", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1276 { ARMV8_R15, "x15", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1277 { ARMV8_R16, "x16", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1278 { ARMV8_R17, "x17", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1279 { ARMV8_R18, "x18", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1280 { ARMV8_R19, "x19", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1281 { ARMV8_R20, "x20", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1282 { ARMV8_R21, "x21", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1283 { ARMV8_R22, "x22", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1284 { ARMV8_R23, "x23", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1285 { ARMV8_R24, "x24", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1286 { ARMV8_R25, "x25", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1287 { ARMV8_R26, "x26", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1288 { ARMV8_R27, "x27", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1289 { ARMV8_R28, "x28", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1290 { ARMV8_R29, "x29", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1291 { ARMV8_R30, "x30", 64, ARM_MODE_ANY, REG_TYPE_UINT64, "general", "org.gnu.gdb.aarch64.core", NULL},
1292
1293 { ARMV8_SP, "sp", 64, ARM_MODE_ANY, REG_TYPE_DATA_PTR, "general", "org.gnu.gdb.aarch64.core", NULL},
1294 { ARMV8_PC, "pc", 64, ARM_MODE_ANY, REG_TYPE_CODE_PTR, "general", "org.gnu.gdb.aarch64.core", NULL},
1295 { ARMV8_xPSR, "cpsr", 32, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED,
1296 "general", "org.gnu.gdb.aarch64.core", aarch64_flags_cpsr},
1297 { ARMV8_V0, "v0", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1298 { ARMV8_V1, "v1", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1299 { ARMV8_V2, "v2", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1300 { ARMV8_V3, "v3", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1301 { ARMV8_V4, "v4", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1302 { ARMV8_V5, "v5", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1303 { ARMV8_V6, "v6", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1304 { ARMV8_V7, "v7", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1305 { ARMV8_V8, "v8", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1306 { ARMV8_V9, "v9", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1307 { ARMV8_V10, "v10", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1308 { ARMV8_V11, "v11", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1309 { ARMV8_V12, "v12", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1310 { ARMV8_V13, "v13", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1311 { ARMV8_V14, "v14", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1312 { ARMV8_V15, "v15", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1313 { ARMV8_V16, "v16", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1314 { ARMV8_V17, "v17", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1315 { ARMV8_V18, "v18", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1316 { ARMV8_V19, "v19", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1317 { ARMV8_V20, "v20", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1318 { ARMV8_V21, "v21", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1319 { ARMV8_V22, "v22", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1320 { ARMV8_V23, "v23", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1321 { ARMV8_V24, "v24", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1322 { ARMV8_V25, "v25", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1323 { ARMV8_V26, "v26", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1324 { ARMV8_V27, "v27", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1325 { ARMV8_V28, "v28", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1326 { ARMV8_V29, "v29", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1327 { ARMV8_V30, "v30", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1328 { ARMV8_V31, "v31", 128, ARM_MODE_ANY, REG_TYPE_ARCH_DEFINED, "simdfp", "org.gnu.gdb.aarch64.fpu", aarch64v},
1329 { ARMV8_FPSR, "fpsr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "simdfp", "org.gnu.gdb.aarch64.fpu", NULL},
1330 { ARMV8_FPCR, "fpcr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "simdfp", "org.gnu.gdb.aarch64.fpu", NULL},
1331
1332 { ARMV8_ELR_EL1, "ELR_EL1", 64, ARMV8_64_EL1H, REG_TYPE_CODE_PTR, "banked", "net.sourceforge.openocd.banked",
1333 NULL},
1334 { ARMV8_ESR_EL1, "ESR_EL1", 32, ARMV8_64_EL1H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1335 NULL},
1336 { ARMV8_SPSR_EL1, "SPSR_EL1", 32, ARMV8_64_EL1H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1337 NULL},
1338
1339 { ARMV8_ELR_EL2, "ELR_EL2", 64, ARMV8_64_EL2H, REG_TYPE_CODE_PTR, "banked", "net.sourceforge.openocd.banked",
1340 NULL},
1341 { ARMV8_ESR_EL2, "ESR_EL2", 32, ARMV8_64_EL2H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1342 NULL},
1343 { ARMV8_SPSR_EL2, "SPSR_EL2", 32, ARMV8_64_EL2H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1344 NULL},
1345
1346 { ARMV8_ELR_EL3, "ELR_EL3", 64, ARMV8_64_EL3H, REG_TYPE_CODE_PTR, "banked", "net.sourceforge.openocd.banked",
1347 NULL},
1348 { ARMV8_ESR_EL3, "ESR_EL3", 32, ARMV8_64_EL3H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1349 NULL},
1350 { ARMV8_SPSR_EL3, "SPSR_EL3", 32, ARMV8_64_EL3H, REG_TYPE_UINT32, "banked", "net.sourceforge.openocd.banked",
1351 NULL},
1352 };
1353
1354 static const struct {
1355 unsigned id;
1356 unsigned mapping;
1357 const char *name;
1358 unsigned bits;
1359 enum arm_mode mode;
1360 enum reg_type type;
1361 const char *group;
1362 const char *feature;
1363 } armv8_regs32[] = {
1364 { ARMV8_R0, 0, "r0", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1365 { ARMV8_R1, 0, "r1", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1366 { ARMV8_R2, 0, "r2", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1367 { ARMV8_R3, 0, "r3", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1368 { ARMV8_R4, 0, "r4", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1369 { ARMV8_R5, 0, "r5", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1370 { ARMV8_R6, 0, "r6", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1371 { ARMV8_R7, 0, "r7", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1372 { ARMV8_R8, 0, "r8", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1373 { ARMV8_R9, 0, "r9", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1374 { ARMV8_R10, 0, "r10", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1375 { ARMV8_R11, 0, "r11", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1376 { ARMV8_R12, 0, "r12", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1377 { ARMV8_R13, 0, "sp", 32, ARM_MODE_ANY, REG_TYPE_DATA_PTR, "general", "org.gnu.gdb.arm.core" },
1378 { ARMV8_R14, 0, "lr", 32, ARM_MODE_ANY, REG_TYPE_CODE_PTR, "general", "org.gnu.gdb.arm.core" },
1379 { ARMV8_PC, 0, "pc", 32, ARM_MODE_ANY, REG_TYPE_CODE_PTR, "general", "org.gnu.gdb.arm.core" },
1380 { ARMV8_xPSR, 0, "cpsr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "general", "org.gnu.gdb.arm.core" },
1381 { ARMV8_V0, 0, "d0", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1382 { ARMV8_V0, 8, "d1", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1383 { ARMV8_V1, 0, "d2", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1384 { ARMV8_V1, 8, "d3", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1385 { ARMV8_V2, 0, "d4", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1386 { ARMV8_V2, 8, "d5", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1387 { ARMV8_V3, 0, "d6", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1388 { ARMV8_V3, 8, "d7", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1389 { ARMV8_V4, 0, "d8", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1390 { ARMV8_V4, 8, "d9", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1391 { ARMV8_V5, 0, "d10", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1392 { ARMV8_V5, 8, "d11", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1393 { ARMV8_V6, 0, "d12", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1394 { ARMV8_V6, 8, "d13", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1395 { ARMV8_V7, 0, "d14", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1396 { ARMV8_V7, 8, "d15", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1397 { ARMV8_V8, 0, "d16", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1398 { ARMV8_V8, 8, "d17", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1399 { ARMV8_V9, 0, "d18", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1400 { ARMV8_V9, 8, "d19", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1401 { ARMV8_V10, 0, "d20", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1402 { ARMV8_V10, 8, "d21", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1403 { ARMV8_V11, 0, "d22", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1404 { ARMV8_V11, 8, "d23", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1405 { ARMV8_V12, 0, "d24", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1406 { ARMV8_V12, 8, "d25", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1407 { ARMV8_V13, 0, "d26", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1408 { ARMV8_V13, 8, "d27", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1409 { ARMV8_V14, 0, "d28", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1410 { ARMV8_V14, 8, "d29", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1411 { ARMV8_V15, 0, "d30", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1412 { ARMV8_V15, 8, "d31", 64, ARM_MODE_ANY, REG_TYPE_IEEE_DOUBLE, NULL, "org.gnu.gdb.arm.vfp"},
1413 { ARMV8_FPSR, 0, "fpscr", 32, ARM_MODE_ANY, REG_TYPE_UINT32, "float", "org.gnu.gdb.arm.vfp"},
1414 };
1415
1416 #define ARMV8_NUM_REGS ARRAY_SIZE(armv8_regs)
1417 #define ARMV8_NUM_REGS32 ARRAY_SIZE(armv8_regs32)
1418
1419 static int armv8_get_core_reg(struct reg *reg)
1420 {
1421 struct arm_reg *armv8_reg = reg->arch_info;
1422 struct target *target = armv8_reg->target;
1423 struct arm *arm = target_to_arm(target);
1424
1425 if (target->state != TARGET_HALTED)
1426 return ERROR_TARGET_NOT_HALTED;
1427
1428 return arm->read_core_reg(target, reg, armv8_reg->num, arm->core_mode);
1429 }
1430
1431 static int armv8_set_core_reg(struct reg *reg, uint8_t *buf)
1432 {
1433 struct arm_reg *armv8_reg = reg->arch_info;
1434 struct target *target = armv8_reg->target;
1435 struct arm *arm = target_to_arm(target);
1436 uint64_t value = buf_get_u64(buf, 0, reg->size);
1437
1438 if (target->state != TARGET_HALTED)
1439 return ERROR_TARGET_NOT_HALTED;
1440
1441 if (reg->size <= 64) {
1442 if (reg == arm->cpsr)
1443 armv8_set_cpsr(arm, (uint32_t)value);
1444 else {
1445 buf_set_u64(reg->value, 0, reg->size, value);
1446 reg->valid = 1;
1447 }
1448 } else if (reg->size <= 128) {
1449 uint64_t hvalue = buf_get_u64(buf + 8, 0, reg->size - 64);
1450
1451 buf_set_u64(reg->value, 0, 64, value);
1452 buf_set_u64(reg->value + 8, 0, reg->size - 64, hvalue);
1453 reg->valid = 1;
1454 }
1455
1456 reg->dirty = 1;
1457
1458 return ERROR_OK;
1459 }
1460
1461 static const struct reg_arch_type armv8_reg_type = {
1462 .get = armv8_get_core_reg,
1463 .set = armv8_set_core_reg,
1464 };
1465
1466 static int armv8_get_core_reg32(struct reg *reg)
1467 {
1468 struct arm_reg *armv8_reg = reg->arch_info;
1469 struct target *target = armv8_reg->target;
1470 struct arm *arm = target_to_arm(target);
1471 struct reg_cache *cache = arm->core_cache;
1472 struct reg *reg64;
1473 int retval;
1474
1475 /* get the corresponding Aarch64 register */
1476 reg64 = cache->reg_list + armv8_reg->num;
1477 if (reg64->valid) {
1478 reg->valid = true;
1479 return ERROR_OK;
1480 }
1481
1482 retval = arm->read_core_reg(target, reg64, armv8_reg->num, arm->core_mode);
1483 if (retval == ERROR_OK)
1484 reg->valid = reg64->valid;
1485
1486 return retval;
1487 }
1488
1489 static int armv8_set_core_reg32(struct reg *reg, uint8_t *buf)
1490 {
1491 struct arm_reg *armv8_reg = reg->arch_info;
1492 struct target *target = armv8_reg->target;
1493 struct arm *arm = target_to_arm(target);
1494 struct reg_cache *cache = arm->core_cache;
1495 struct reg *reg64 = cache->reg_list + armv8_reg->num;
1496 uint32_t value = buf_get_u32(buf, 0, 32);
1497
1498 if (reg64 == arm->cpsr) {
1499 armv8_set_cpsr(arm, value);
1500 } else {
1501 if (reg->size <= 32)
1502 buf_set_u32(reg->value, 0, 32, value);
1503 else if (reg->size <= 64) {
1504 uint64_t value64 = buf_get_u64(buf, 0, 64);
1505 buf_set_u64(reg->value, 0, 64, value64);
1506 }
1507 reg->valid = 1;
1508 reg64->valid = 1;
1509 }
1510
1511 reg64->dirty = 1;
1512
1513 return ERROR_OK;
1514 }
1515
1516 static const struct reg_arch_type armv8_reg32_type = {
1517 .get = armv8_get_core_reg32,
1518 .set = armv8_set_core_reg32,
1519 };
1520
1521 /** Builds cache of architecturally defined registers. */
1522 struct reg_cache *armv8_build_reg_cache(struct target *target)
1523 {
1524 struct armv8_common *armv8 = target_to_armv8(target);
1525 struct arm *arm = &armv8->arm;
1526 int num_regs = ARMV8_NUM_REGS;
1527 int num_regs32 = ARMV8_NUM_REGS32;
1528 struct reg_cache **cache_p = register_get_last_cache_p(&target->reg_cache);
1529 struct reg_cache *cache = malloc(sizeof(struct reg_cache));
1530 struct reg_cache *cache32 = malloc(sizeof(struct reg_cache));
1531 struct reg *reg_list = calloc(num_regs, sizeof(struct reg));
1532 struct reg *reg_list32 = calloc(num_regs32, sizeof(struct reg));
1533 struct arm_reg *arch_info = calloc(num_regs, sizeof(struct arm_reg));
1534 struct reg_feature *feature;
1535 int i;
1536
1537 /* Build the process context cache */
1538 cache->name = "Aarch64 registers";
1539 cache->next = cache32;
1540 cache->reg_list = reg_list;
1541 cache->num_regs = num_regs;
1542
1543 for (i = 0; i < num_regs; i++) {
1544 arch_info[i].num = armv8_regs[i].id;
1545 arch_info[i].mode = armv8_regs[i].mode;
1546 arch_info[i].target = target;
1547 arch_info[i].arm = arm;
1548
1549 reg_list[i].name = armv8_regs[i].name;
1550 reg_list[i].size = armv8_regs[i].bits;
1551 reg_list[i].value = &arch_info[i].value[0];
1552 reg_list[i].type = &armv8_reg_type;
1553 reg_list[i].arch_info = &arch_info[i];
1554
1555 reg_list[i].group = armv8_regs[i].group;
1556 reg_list[i].number = i;
1557 reg_list[i].exist = true;
1558 reg_list[i].caller_save = true; /* gdb defaults to true */
1559
1560 feature = calloc(1, sizeof(struct reg_feature));
1561 if (feature) {
1562 feature->name = armv8_regs[i].feature;
1563 reg_list[i].feature = feature;
1564 } else
1565 LOG_ERROR("unable to allocate feature list");
1566
1567 reg_list[i].reg_data_type = calloc(1, sizeof(struct reg_data_type));
1568 if (reg_list[i].reg_data_type) {
1569 if (armv8_regs[i].data_type == NULL)
1570 reg_list[i].reg_data_type->type = armv8_regs[i].type;
1571 else
1572 *reg_list[i].reg_data_type = *armv8_regs[i].data_type;
1573 } else
1574 LOG_ERROR("unable to allocate reg type list");
1575 }
1576
1577 arm->cpsr = reg_list + ARMV8_xPSR;
1578 arm->pc = reg_list + ARMV8_PC;
1579 arm->core_cache = cache;
1580
1581 /* shadow cache for ARM mode registers */
1582 cache32->name = "Aarch32 registers";
1583 cache32->next = NULL;
1584 cache32->reg_list = reg_list32;
1585 cache32->num_regs = num_regs32;
1586
1587 for (i = 0; i < num_regs32; i++) {
1588 reg_list32[i].name = armv8_regs32[i].name;
1589 reg_list32[i].size = armv8_regs32[i].bits;
1590 reg_list32[i].value = &arch_info[armv8_regs32[i].id].value[armv8_regs32[i].mapping];
1591 reg_list32[i].type = &armv8_reg32_type;
1592 reg_list32[i].arch_info = &arch_info[armv8_regs32[i].id];
1593 reg_list32[i].group = armv8_regs32[i].group;
1594 reg_list32[i].number = i;
1595 reg_list32[i].exist = true;
1596 reg_list32[i].caller_save = true;
1597
1598 feature = calloc(1, sizeof(struct reg_feature));
1599 if (feature) {
1600 feature->name = armv8_regs32[i].feature;
1601 reg_list32[i].feature = feature;
1602 } else
1603 LOG_ERROR("unable to allocate feature list");
1604
1605 reg_list32[i].reg_data_type = calloc(1, sizeof(struct reg_data_type));
1606 if (reg_list32[i].reg_data_type)
1607 reg_list32[i].reg_data_type->type = armv8_regs32[i].type;
1608 else
1609 LOG_ERROR("unable to allocate reg type list");
1610 }
1611
1612 (*cache_p) = cache;
1613 return cache;
1614 }
1615
1616 struct reg *armv8_reg_current(struct arm *arm, unsigned regnum)
1617 {
1618 struct reg *r;
1619
1620 if (regnum > (ARMV8_LAST_REG - 1))
1621 return NULL;
1622
1623 r = arm->core_cache->reg_list + regnum;
1624 return r;
1625 }
1626
1627 static void armv8_free_cache(struct reg_cache *cache, bool regs32)
1628 {
1629 struct reg *reg;
1630 unsigned int i;
1631
1632 if (!cache)
1633 return;
1634
1635 for (i = 0; i < cache->num_regs; i++) {
1636 reg = &cache->reg_list[i];
1637
1638 free(reg->feature);
1639 free(reg->reg_data_type);
1640 }
1641
1642 if (!regs32)
1643 free(cache->reg_list[0].arch_info);
1644 free(cache->reg_list);
1645 free(cache);
1646 }
1647
1648 void armv8_free_reg_cache(struct target *target)
1649 {
1650 struct armv8_common *armv8 = target_to_armv8(target);
1651 struct arm *arm = &armv8->arm;
1652 struct reg_cache *cache = NULL, *cache32 = NULL;
1653
1654 cache = arm->core_cache;
1655 if (cache != NULL)
1656 cache32 = cache->next;
1657 armv8_free_cache(cache32, true);
1658 armv8_free_cache(cache, false);
1659 arm->core_cache = NULL;
1660 }
1661
1662 const struct command_registration armv8_command_handlers[] = {
1663 COMMAND_REGISTRATION_DONE
1664 };
1665
1666 int armv8_get_gdb_reg_list(struct target *target,
1667 struct reg **reg_list[], int *reg_list_size,
1668 enum target_register_class reg_class)
1669 {
1670 struct arm *arm = target_to_arm(target);
1671 int i;
1672
1673 if (arm->core_state == ARM_STATE_AARCH64) {
1674
1675 LOG_DEBUG("Creating Aarch64 register list for target %s", target_name(target));
1676
1677 switch (reg_class) {
1678 case REG_CLASS_GENERAL:
1679 *reg_list_size = ARMV8_V0;
1680 *reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
1681
1682 for (i = 0; i < *reg_list_size; i++)
1683 (*reg_list)[i] = armv8_reg_current(arm, i);
1684 return ERROR_OK;
1685
1686 case REG_CLASS_ALL:
1687 *reg_list_size = ARMV8_LAST_REG;
1688 *reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
1689
1690 for (i = 0; i < *reg_list_size; i++)
1691 (*reg_list)[i] = armv8_reg_current(arm, i);
1692
1693 return ERROR_OK;
1694
1695 default:
1696 LOG_ERROR("not a valid register class type in query.");
1697 return ERROR_FAIL;
1698 }
1699 } else {
1700 struct reg_cache *cache32 = arm->core_cache->next;
1701
1702 LOG_DEBUG("Creating Aarch32 register list for target %s", target_name(target));
1703
1704 switch (reg_class) {
1705 case REG_CLASS_GENERAL:
1706 *reg_list_size = ARMV8_R14 + 3;
1707 *reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
1708
1709 for (i = 0; i < *reg_list_size; i++)
1710 (*reg_list)[i] = cache32->reg_list + i;
1711
1712 return ERROR_OK;
1713 case REG_CLASS_ALL:
1714 *reg_list_size = cache32->num_regs;
1715 *reg_list = malloc(sizeof(struct reg *) * (*reg_list_size));
1716
1717 for (i = 0; i < *reg_list_size; i++)
1718 (*reg_list)[i] = cache32->reg_list + i;
1719
1720 return ERROR_OK;
1721 default:
1722 LOG_ERROR("not a valid register class type in query.");
1723 return ERROR_FAIL;
1724 }
1725 }
1726 }
1727
1728 int armv8_set_dbgreg_bits(struct armv8_common *armv8, unsigned int reg, unsigned long mask, unsigned long value)
1729 {
1730 uint32_t tmp;
1731
1732 /* Read register */
1733 int retval = mem_ap_read_atomic_u32(armv8->debug_ap,
1734 armv8->debug_base + reg, &tmp);
1735 if (ERROR_OK != retval)
1736 return retval;
1737
1738 /* clear bitfield */
1739 tmp &= ~mask;
1740 /* put new value */
1741 tmp |= value & mask;
1742
1743 /* write new value */
1744 retval = mem_ap_write_atomic_u32(armv8->debug_ap,
1745 armv8->debug_base + reg, tmp);
1746 return retval;
1747 }
Official OpenOCD Mirror