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[openocd.git] / src / target / target.c
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007-2010 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * Copyright (C) 2008, Duane Ellis *
9 * openocd@duaneeellis.com *
10 * *
11 * Copyright (C) 2008 by Spencer Oliver *
12 * spen@spen-soft.co.uk *
13 * *
14 * Copyright (C) 2008 by Rick Altherr *
15 * kc8apf@kc8apf.net> *
16 * *
17 * Copyright (C) 2011 by Broadcom Corporation *
18 * Evan Hunter - ehunter@broadcom.com *
19 * *
20 * Copyright (C) ST-Ericsson SA 2011 *
21 * michel.jaouen@stericsson.com : smp minimum support *
22 * *
23 * Copyright (C) 2011 Andreas Fritiofson *
24 * andreas.fritiofson@gmail.com *
25 * *
26 * This program is free software; you can redistribute it and/or modify *
27 * it under the terms of the GNU General Public License as published by *
28 * the Free Software Foundation; either version 2 of the License, or *
29 * (at your option) any later version. *
30 * *
31 * This program is distributed in the hope that it will be useful, *
32 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
33 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
34 * GNU General Public License for more details. *
35 * *
36 * You should have received a copy of the GNU General Public License *
37 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
38 ***************************************************************************/
39
40 #ifdef HAVE_CONFIG_H
41 #include "config.h"
42 #endif
43
44 #include <helper/time_support.h>
45 #include <jtag/jtag.h>
46 #include <flash/nor/core.h>
47
48 #include "target.h"
49 #include "target_type.h"
50 #include "target_request.h"
51 #include "breakpoints.h"
52 #include "register.h"
53 #include "trace.h"
54 #include "image.h"
55 #include "rtos/rtos.h"
56 #include "transport/transport.h"
57
58 /* default halt wait timeout (ms) */
59 #define DEFAULT_HALT_TIMEOUT 5000
60
61 static int target_read_buffer_default(struct target *target, target_addr_t address,
62 uint32_t count, uint8_t *buffer);
63 static int target_write_buffer_default(struct target *target, target_addr_t address,
64 uint32_t count, const uint8_t *buffer);
65 static int target_array2mem(Jim_Interp *interp, struct target *target,
66 int argc, Jim_Obj * const *argv);
67 static int target_mem2array(Jim_Interp *interp, struct target *target,
68 int argc, Jim_Obj * const *argv);
69 static int target_register_user_commands(struct command_context *cmd_ctx);
70 static int target_get_gdb_fileio_info_default(struct target *target,
71 struct gdb_fileio_info *fileio_info);
72 static int target_gdb_fileio_end_default(struct target *target, int retcode,
73 int fileio_errno, bool ctrl_c);
74 static int target_profiling_default(struct target *target, uint32_t *samples,
75 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds);
76
77 /* targets */
78 extern struct target_type arm7tdmi_target;
79 extern struct target_type arm720t_target;
80 extern struct target_type arm9tdmi_target;
81 extern struct target_type arm920t_target;
82 extern struct target_type arm966e_target;
83 extern struct target_type arm946e_target;
84 extern struct target_type arm926ejs_target;
85 extern struct target_type fa526_target;
86 extern struct target_type feroceon_target;
87 extern struct target_type dragonite_target;
88 extern struct target_type xscale_target;
89 extern struct target_type cortexm_target;
90 extern struct target_type cortexa_target;
91 extern struct target_type aarch64_target;
92 extern struct target_type cortexr4_target;
93 extern struct target_type arm11_target;
94 extern struct target_type ls1_sap_target;
95 extern struct target_type mips_m4k_target;
96 extern struct target_type avr_target;
97 extern struct target_type dsp563xx_target;
98 extern struct target_type dsp5680xx_target;
99 extern struct target_type testee_target;
100 extern struct target_type avr32_ap7k_target;
101 extern struct target_type hla_target;
102 extern struct target_type nds32_v2_target;
103 extern struct target_type nds32_v3_target;
104 extern struct target_type nds32_v3m_target;
105 extern struct target_type or1k_target;
106 extern struct target_type quark_x10xx_target;
107 extern struct target_type quark_d20xx_target;
108 extern struct target_type stm8_target;
109
110 static struct target_type *target_types[] = {
111 &arm7tdmi_target,
112 &arm9tdmi_target,
113 &arm920t_target,
114 &arm720t_target,
115 &arm966e_target,
116 &arm946e_target,
117 &arm926ejs_target,
118 &fa526_target,
119 &feroceon_target,
120 &dragonite_target,
121 &xscale_target,
122 &cortexm_target,
123 &cortexa_target,
124 &cortexr4_target,
125 &arm11_target,
126 &ls1_sap_target,
127 &mips_m4k_target,
128 &avr_target,
129 &dsp563xx_target,
130 &dsp5680xx_target,
131 &testee_target,
132 &avr32_ap7k_target,
133 &hla_target,
134 &nds32_v2_target,
135 &nds32_v3_target,
136 &nds32_v3m_target,
137 &or1k_target,
138 &quark_x10xx_target,
139 &quark_d20xx_target,
140 &stm8_target,
141 #if BUILD_TARGET64
142 &aarch64_target,
143 #endif
144 NULL,
145 };
146
147 struct target *all_targets;
148 static struct target_event_callback *target_event_callbacks;
149 static struct target_timer_callback *target_timer_callbacks;
150 LIST_HEAD(target_reset_callback_list);
151 LIST_HEAD(target_trace_callback_list);
152 static const int polling_interval = 100;
153
154 static const Jim_Nvp nvp_assert[] = {
155 { .name = "assert", NVP_ASSERT },
156 { .name = "deassert", NVP_DEASSERT },
157 { .name = "T", NVP_ASSERT },
158 { .name = "F", NVP_DEASSERT },
159 { .name = "t", NVP_ASSERT },
160 { .name = "f", NVP_DEASSERT },
161 { .name = NULL, .value = -1 }
162 };
163
164 static const Jim_Nvp nvp_error_target[] = {
165 { .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
166 { .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
167 { .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
168 { .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
169 { .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
170 { .value = ERROR_TARGET_UNALIGNED_ACCESS , .name = "err-unaligned-access" },
171 { .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
172 { .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
173 { .value = ERROR_TARGET_TRANSLATION_FAULT , .name = "err-translation-fault" },
174 { .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
175 { .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
176 { .value = -1, .name = NULL }
177 };
178
179 static const char *target_strerror_safe(int err)
180 {
181 const Jim_Nvp *n;
182
183 n = Jim_Nvp_value2name_simple(nvp_error_target, err);
184 if (n->name == NULL)
185 return "unknown";
186 else
187 return n->name;
188 }
189
190 static const Jim_Nvp nvp_target_event[] = {
191
192 { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
193 { .value = TARGET_EVENT_HALTED, .name = "halted" },
194 { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
195 { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
196 { .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },
197
198 { .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
199 { .name = "gdb-end", .value = TARGET_EVENT_GDB_END },
200
201 { .value = TARGET_EVENT_RESET_START, .name = "reset-start" },
202 { .value = TARGET_EVENT_RESET_ASSERT_PRE, .name = "reset-assert-pre" },
203 { .value = TARGET_EVENT_RESET_ASSERT, .name = "reset-assert" },
204 { .value = TARGET_EVENT_RESET_ASSERT_POST, .name = "reset-assert-post" },
205 { .value = TARGET_EVENT_RESET_DEASSERT_PRE, .name = "reset-deassert-pre" },
206 { .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
207 { .value = TARGET_EVENT_RESET_INIT, .name = "reset-init" },
208 { .value = TARGET_EVENT_RESET_END, .name = "reset-end" },
209
210 { .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
211 { .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
212
213 { .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
214 { .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },
215
216 { .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
217 { .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },
218
219 { .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
220 { .value = TARGET_EVENT_GDB_FLASH_WRITE_END , .name = "gdb-flash-write-end" },
221
222 { .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
223 { .value = TARGET_EVENT_GDB_FLASH_ERASE_END , .name = "gdb-flash-erase-end" },
224
225 { .value = TARGET_EVENT_TRACE_CONFIG, .name = "trace-config" },
226
227 { .name = NULL, .value = -1 }
228 };
229
230 static const Jim_Nvp nvp_target_state[] = {
231 { .name = "unknown", .value = TARGET_UNKNOWN },
232 { .name = "running", .value = TARGET_RUNNING },
233 { .name = "halted", .value = TARGET_HALTED },
234 { .name = "reset", .value = TARGET_RESET },
235 { .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
236 { .name = NULL, .value = -1 },
237 };
238
239 static const Jim_Nvp nvp_target_debug_reason[] = {
240 { .name = "debug-request" , .value = DBG_REASON_DBGRQ },
241 { .name = "breakpoint" , .value = DBG_REASON_BREAKPOINT },
242 { .name = "watchpoint" , .value = DBG_REASON_WATCHPOINT },
243 { .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
244 { .name = "single-step" , .value = DBG_REASON_SINGLESTEP },
245 { .name = "target-not-halted" , .value = DBG_REASON_NOTHALTED },
246 { .name = "program-exit" , .value = DBG_REASON_EXIT },
247 { .name = "undefined" , .value = DBG_REASON_UNDEFINED },
248 { .name = NULL, .value = -1 },
249 };
250
251 static const Jim_Nvp nvp_target_endian[] = {
252 { .name = "big", .value = TARGET_BIG_ENDIAN },
253 { .name = "little", .value = TARGET_LITTLE_ENDIAN },
254 { .name = "be", .value = TARGET_BIG_ENDIAN },
255 { .name = "le", .value = TARGET_LITTLE_ENDIAN },
256 { .name = NULL, .value = -1 },
257 };
258
259 static const Jim_Nvp nvp_reset_modes[] = {
260 { .name = "unknown", .value = RESET_UNKNOWN },
261 { .name = "run" , .value = RESET_RUN },
262 { .name = "halt" , .value = RESET_HALT },
263 { .name = "init" , .value = RESET_INIT },
264 { .name = NULL , .value = -1 },
265 };
266
267 const char *debug_reason_name(struct target *t)
268 {
269 const char *cp;
270
271 cp = Jim_Nvp_value2name_simple(nvp_target_debug_reason,
272 t->debug_reason)->name;
273 if (!cp) {
274 LOG_ERROR("Invalid debug reason: %d", (int)(t->debug_reason));
275 cp = "(*BUG*unknown*BUG*)";
276 }
277 return cp;
278 }
279
280 const char *target_state_name(struct target *t)
281 {
282 const char *cp;
283 cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
284 if (!cp) {
285 LOG_ERROR("Invalid target state: %d", (int)(t->state));
286 cp = "(*BUG*unknown*BUG*)";
287 }
288
289 if (!target_was_examined(t) && t->defer_examine)
290 cp = "examine deferred";
291
292 return cp;
293 }
294
295 const char *target_event_name(enum target_event event)
296 {
297 const char *cp;
298 cp = Jim_Nvp_value2name_simple(nvp_target_event, event)->name;
299 if (!cp) {
300 LOG_ERROR("Invalid target event: %d", (int)(event));
301 cp = "(*BUG*unknown*BUG*)";
302 }
303 return cp;
304 }
305
306 const char *target_reset_mode_name(enum target_reset_mode reset_mode)
307 {
308 const char *cp;
309 cp = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name;
310 if (!cp) {
311 LOG_ERROR("Invalid target reset mode: %d", (int)(reset_mode));
312 cp = "(*BUG*unknown*BUG*)";
313 }
314 return cp;
315 }
316
317 /* determine the number of the new target */
318 static int new_target_number(void)
319 {
320 struct target *t;
321 int x;
322
323 /* number is 0 based */
324 x = -1;
325 t = all_targets;
326 while (t) {
327 if (x < t->target_number)
328 x = t->target_number;
329 t = t->next;
330 }
331 return x + 1;
332 }
333
334 /* read a uint64_t from a buffer in target memory endianness */
335 uint64_t target_buffer_get_u64(struct target *target, const uint8_t *buffer)
336 {
337 if (target->endianness == TARGET_LITTLE_ENDIAN)
338 return le_to_h_u64(buffer);
339 else
340 return be_to_h_u64(buffer);
341 }
342
343 /* read a uint32_t from a buffer in target memory endianness */
344 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer)
345 {
346 if (target->endianness == TARGET_LITTLE_ENDIAN)
347 return le_to_h_u32(buffer);
348 else
349 return be_to_h_u32(buffer);
350 }
351
352 /* read a uint24_t from a buffer in target memory endianness */
353 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer)
354 {
355 if (target->endianness == TARGET_LITTLE_ENDIAN)
356 return le_to_h_u24(buffer);
357 else
358 return be_to_h_u24(buffer);
359 }
360
361 /* read a uint16_t from a buffer in target memory endianness */
362 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer)
363 {
364 if (target->endianness == TARGET_LITTLE_ENDIAN)
365 return le_to_h_u16(buffer);
366 else
367 return be_to_h_u16(buffer);
368 }
369
370 /* read a uint8_t from a buffer in target memory endianness */
371 static uint8_t target_buffer_get_u8(struct target *target, const uint8_t *buffer)
372 {
373 return *buffer & 0x0ff;
374 }
375
376 /* write a uint64_t to a buffer in target memory endianness */
377 void target_buffer_set_u64(struct target *target, uint8_t *buffer, uint64_t value)
378 {
379 if (target->endianness == TARGET_LITTLE_ENDIAN)
380 h_u64_to_le(buffer, value);
381 else
382 h_u64_to_be(buffer, value);
383 }
384
385 /* write a uint32_t to a buffer in target memory endianness */
386 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value)
387 {
388 if (target->endianness == TARGET_LITTLE_ENDIAN)
389 h_u32_to_le(buffer, value);
390 else
391 h_u32_to_be(buffer, value);
392 }
393
394 /* write a uint24_t to a buffer in target memory endianness */
395 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value)
396 {
397 if (target->endianness == TARGET_LITTLE_ENDIAN)
398 h_u24_to_le(buffer, value);
399 else
400 h_u24_to_be(buffer, value);
401 }
402
403 /* write a uint16_t to a buffer in target memory endianness */
404 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value)
405 {
406 if (target->endianness == TARGET_LITTLE_ENDIAN)
407 h_u16_to_le(buffer, value);
408 else
409 h_u16_to_be(buffer, value);
410 }
411
412 /* write a uint8_t to a buffer in target memory endianness */
413 static void target_buffer_set_u8(struct target *target, uint8_t *buffer, uint8_t value)
414 {
415 *buffer = value;
416 }
417
418 /* write a uint64_t array to a buffer in target memory endianness */
419 void target_buffer_get_u64_array(struct target *target, const uint8_t *buffer, uint32_t count, uint64_t *dstbuf)
420 {
421 uint32_t i;
422 for (i = 0; i < count; i++)
423 dstbuf[i] = target_buffer_get_u64(target, &buffer[i * 8]);
424 }
425
426 /* write a uint32_t array to a buffer in target memory endianness */
427 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf)
428 {
429 uint32_t i;
430 for (i = 0; i < count; i++)
431 dstbuf[i] = target_buffer_get_u32(target, &buffer[i * 4]);
432 }
433
434 /* write a uint16_t array to a buffer in target memory endianness */
435 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf)
436 {
437 uint32_t i;
438 for (i = 0; i < count; i++)
439 dstbuf[i] = target_buffer_get_u16(target, &buffer[i * 2]);
440 }
441
442 /* write a uint64_t array to a buffer in target memory endianness */
443 void target_buffer_set_u64_array(struct target *target, uint8_t *buffer, uint32_t count, const uint64_t *srcbuf)
444 {
445 uint32_t i;
446 for (i = 0; i < count; i++)
447 target_buffer_set_u64(target, &buffer[i * 8], srcbuf[i]);
448 }
449
450 /* write a uint32_t array to a buffer in target memory endianness */
451 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, const uint32_t *srcbuf)
452 {
453 uint32_t i;
454 for (i = 0; i < count; i++)
455 target_buffer_set_u32(target, &buffer[i * 4], srcbuf[i]);
456 }
457
458 /* write a uint16_t array to a buffer in target memory endianness */
459 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, const uint16_t *srcbuf)
460 {
461 uint32_t i;
462 for (i = 0; i < count; i++)
463 target_buffer_set_u16(target, &buffer[i * 2], srcbuf[i]);
464 }
465
466 /* return a pointer to a configured target; id is name or number */
467 struct target *get_target(const char *id)
468 {
469 struct target *target;
470
471 /* try as tcltarget name */
472 for (target = all_targets; target; target = target->next) {
473 if (target_name(target) == NULL)
474 continue;
475 if (strcmp(id, target_name(target)) == 0)
476 return target;
477 }
478
479 /* It's OK to remove this fallback sometime after August 2010 or so */
480
481 /* no match, try as number */
482 unsigned num;
483 if (parse_uint(id, &num) != ERROR_OK)
484 return NULL;
485
486 for (target = all_targets; target; target = target->next) {
487 if (target->target_number == (int)num) {
488 LOG_WARNING("use '%s' as target identifier, not '%u'",
489 target_name(target), num);
490 return target;
491 }
492 }
493
494 return NULL;
495 }
496
497 /* returns a pointer to the n-th configured target */
498 struct target *get_target_by_num(int num)
499 {
500 struct target *target = all_targets;
501
502 while (target) {
503 if (target->target_number == num)
504 return target;
505 target = target->next;
506 }
507
508 return NULL;
509 }
510
511 struct target *get_current_target(struct command_context *cmd_ctx)
512 {
513 struct target *target = get_target_by_num(cmd_ctx->current_target);
514
515 if (target == NULL) {
516 LOG_ERROR("BUG: current_target out of bounds");
517 exit(-1);
518 }
519
520 return target;
521 }
522
523 int target_poll(struct target *target)
524 {
525 int retval;
526
527 /* We can't poll until after examine */
528 if (!target_was_examined(target)) {
529 /* Fail silently lest we pollute the log */
530 return ERROR_FAIL;
531 }
532
533 retval = target->type->poll(target);
534 if (retval != ERROR_OK)
535 return retval;
536
537 if (target->halt_issued) {
538 if (target->state == TARGET_HALTED)
539 target->halt_issued = false;
540 else {
541 int64_t t = timeval_ms() - target->halt_issued_time;
542 if (t > DEFAULT_HALT_TIMEOUT) {
543 target->halt_issued = false;
544 LOG_INFO("Halt timed out, wake up GDB.");
545 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
546 }
547 }
548 }
549
550 return ERROR_OK;
551 }
552
553 int target_halt(struct target *target)
554 {
555 int retval;
556 /* We can't poll until after examine */
557 if (!target_was_examined(target)) {
558 LOG_ERROR("Target not examined yet");
559 return ERROR_FAIL;
560 }
561
562 retval = target->type->halt(target);
563 if (retval != ERROR_OK)
564 return retval;
565
566 target->halt_issued = true;
567 target->halt_issued_time = timeval_ms();
568
569 return ERROR_OK;
570 }
571
572 /**
573 * Make the target (re)start executing using its saved execution
574 * context (possibly with some modifications).
575 *
576 * @param target Which target should start executing.
577 * @param current True to use the target's saved program counter instead
578 * of the address parameter
579 * @param address Optionally used as the program counter.
580 * @param handle_breakpoints True iff breakpoints at the resumption PC
581 * should be skipped. (For example, maybe execution was stopped by
582 * such a breakpoint, in which case it would be counterprodutive to
583 * let it re-trigger.
584 * @param debug_execution False if all working areas allocated by OpenOCD
585 * should be released and/or restored to their original contents.
586 * (This would for example be true to run some downloaded "helper"
587 * algorithm code, which resides in one such working buffer and uses
588 * another for data storage.)
589 *
590 * @todo Resolve the ambiguity about what the "debug_execution" flag
591 * signifies. For example, Target implementations don't agree on how
592 * it relates to invalidation of the register cache, or to whether
593 * breakpoints and watchpoints should be enabled. (It would seem wrong
594 * to enable breakpoints when running downloaded "helper" algorithms
595 * (debug_execution true), since the breakpoints would be set to match
596 * target firmware being debugged, not the helper algorithm.... and
597 * enabling them could cause such helpers to malfunction (for example,
598 * by overwriting data with a breakpoint instruction. On the other
599 * hand the infrastructure for running such helpers might use this
600 * procedure but rely on hardware breakpoint to detect termination.)
601 */
602 int target_resume(struct target *target, int current, target_addr_t address,
603 int handle_breakpoints, int debug_execution)
604 {
605 int retval;
606
607 /* We can't poll until after examine */
608 if (!target_was_examined(target)) {
609 LOG_ERROR("Target not examined yet");
610 return ERROR_FAIL;
611 }
612
613 target_call_event_callbacks(target, TARGET_EVENT_RESUME_START);
614
615 /* note that resume *must* be asynchronous. The CPU can halt before
616 * we poll. The CPU can even halt at the current PC as a result of
617 * a software breakpoint being inserted by (a bug?) the application.
618 */
619 retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution);
620 if (retval != ERROR_OK)
621 return retval;
622
623 target_call_event_callbacks(target, TARGET_EVENT_RESUME_END);
624
625 return retval;
626 }
627
628 static int target_process_reset(struct command_context *cmd_ctx, enum target_reset_mode reset_mode)
629 {
630 char buf[100];
631 int retval;
632 Jim_Nvp *n;
633 n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
634 if (n->name == NULL) {
635 LOG_ERROR("invalid reset mode");
636 return ERROR_FAIL;
637 }
638
639 struct target *target;
640 for (target = all_targets; target; target = target->next)
641 target_call_reset_callbacks(target, reset_mode);
642
643 /* disable polling during reset to make reset event scripts
644 * more predictable, i.e. dr/irscan & pathmove in events will
645 * not have JTAG operations injected into the middle of a sequence.
646 */
647 bool save_poll = jtag_poll_get_enabled();
648
649 jtag_poll_set_enabled(false);
650
651 sprintf(buf, "ocd_process_reset %s", n->name);
652 retval = Jim_Eval(cmd_ctx->interp, buf);
653
654 jtag_poll_set_enabled(save_poll);
655
656 if (retval != JIM_OK) {
657 Jim_MakeErrorMessage(cmd_ctx->interp);
658 command_print(NULL, "%s\n", Jim_GetString(Jim_GetResult(cmd_ctx->interp), NULL));
659 return ERROR_FAIL;
660 }
661
662 /* We want any events to be processed before the prompt */
663 retval = target_call_timer_callbacks_now();
664
665 for (target = all_targets; target; target = target->next) {
666 target->type->check_reset(target);
667 target->running_alg = false;
668 }
669
670 return retval;
671 }
672
673 static int identity_virt2phys(struct target *target,
674 target_addr_t virtual, target_addr_t *physical)
675 {
676 *physical = virtual;
677 return ERROR_OK;
678 }
679
680 static int no_mmu(struct target *target, int *enabled)
681 {
682 *enabled = 0;
683 return ERROR_OK;
684 }
685
686 static int default_examine(struct target *target)
687 {
688 target_set_examined(target);
689 return ERROR_OK;
690 }
691
692 /* no check by default */
693 static int default_check_reset(struct target *target)
694 {
695 return ERROR_OK;
696 }
697
698 int target_examine_one(struct target *target)
699 {
700 target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_START);
701
702 int retval = target->type->examine(target);
703 if (retval != ERROR_OK)
704 return retval;
705
706 target_call_event_callbacks(target, TARGET_EVENT_EXAMINE_END);
707
708 return ERROR_OK;
709 }
710
711 static int jtag_enable_callback(enum jtag_event event, void *priv)
712 {
713 struct target *target = priv;
714
715 if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
716 return ERROR_OK;
717
718 jtag_unregister_event_callback(jtag_enable_callback, target);
719
720 return target_examine_one(target);
721 }
722
723 /* Targets that correctly implement init + examine, i.e.
724 * no communication with target during init:
725 *
726 * XScale
727 */
728 int target_examine(void)
729 {
730 int retval = ERROR_OK;
731 struct target *target;
732
733 for (target = all_targets; target; target = target->next) {
734 /* defer examination, but don't skip it */
735 if (!target->tap->enabled) {
736 jtag_register_event_callback(jtag_enable_callback,
737 target);
738 continue;
739 }
740
741 if (target->defer_examine)
742 continue;
743
744 retval = target_examine_one(target);
745 if (retval != ERROR_OK)
746 return retval;
747 }
748 return retval;
749 }
750
751 const char *target_type_name(struct target *target)
752 {
753 return target->type->name;
754 }
755
756 static int target_soft_reset_halt(struct target *target)
757 {
758 if (!target_was_examined(target)) {
759 LOG_ERROR("Target not examined yet");
760 return ERROR_FAIL;
761 }
762 if (!target->type->soft_reset_halt) {
763 LOG_ERROR("Target %s does not support soft_reset_halt",
764 target_name(target));
765 return ERROR_FAIL;
766 }
767 return target->type->soft_reset_halt(target);
768 }
769
770 /**
771 * Downloads a target-specific native code algorithm to the target,
772 * and executes it. * Note that some targets may need to set up, enable,
773 * and tear down a breakpoint (hard or * soft) to detect algorithm
774 * termination, while others may support lower overhead schemes where
775 * soft breakpoints embedded in the algorithm automatically terminate the
776 * algorithm.
777 *
778 * @param target used to run the algorithm
779 * @param arch_info target-specific description of the algorithm.
780 */
781 int target_run_algorithm(struct target *target,
782 int num_mem_params, struct mem_param *mem_params,
783 int num_reg_params, struct reg_param *reg_param,
784 uint32_t entry_point, uint32_t exit_point,
785 int timeout_ms, void *arch_info)
786 {
787 int retval = ERROR_FAIL;
788
789 if (!target_was_examined(target)) {
790 LOG_ERROR("Target not examined yet");
791 goto done;
792 }
793 if (!target->type->run_algorithm) {
794 LOG_ERROR("Target type '%s' does not support %s",
795 target_type_name(target), __func__);
796 goto done;
797 }
798
799 target->running_alg = true;
800 retval = target->type->run_algorithm(target,
801 num_mem_params, mem_params,
802 num_reg_params, reg_param,
803 entry_point, exit_point, timeout_ms, arch_info);
804 target->running_alg = false;
805
806 done:
807 return retval;
808 }
809
810 /**
811 * Downloads a target-specific native code algorithm to the target,
812 * executes and leaves it running.
813 *
814 * @param target used to run the algorithm
815 * @param arch_info target-specific description of the algorithm.
816 */
817 int target_start_algorithm(struct target *target,
818 int num_mem_params, struct mem_param *mem_params,
819 int num_reg_params, struct reg_param *reg_params,
820 uint32_t entry_point, uint32_t exit_point,
821 void *arch_info)
822 {
823 int retval = ERROR_FAIL;
824
825 if (!target_was_examined(target)) {
826 LOG_ERROR("Target not examined yet");
827 goto done;
828 }
829 if (!target->type->start_algorithm) {
830 LOG_ERROR("Target type '%s' does not support %s",
831 target_type_name(target), __func__);
832 goto done;
833 }
834 if (target->running_alg) {
835 LOG_ERROR("Target is already running an algorithm");
836 goto done;
837 }
838
839 target->running_alg = true;
840 retval = target->type->start_algorithm(target,
841 num_mem_params, mem_params,
842 num_reg_params, reg_params,
843 entry_point, exit_point, arch_info);
844
845 done:
846 return retval;
847 }
848
849 /**
850 * Waits for an algorithm started with target_start_algorithm() to complete.
851 *
852 * @param target used to run the algorithm
853 * @param arch_info target-specific description of the algorithm.
854 */
855 int target_wait_algorithm(struct target *target,
856 int num_mem_params, struct mem_param *mem_params,
857 int num_reg_params, struct reg_param *reg_params,
858 uint32_t exit_point, int timeout_ms,
859 void *arch_info)
860 {
861 int retval = ERROR_FAIL;
862
863 if (!target->type->wait_algorithm) {
864 LOG_ERROR("Target type '%s' does not support %s",
865 target_type_name(target), __func__);
866 goto done;
867 }
868 if (!target->running_alg) {
869 LOG_ERROR("Target is not running an algorithm");
870 goto done;
871 }
872
873 retval = target->type->wait_algorithm(target,
874 num_mem_params, mem_params,
875 num_reg_params, reg_params,
876 exit_point, timeout_ms, arch_info);
877 if (retval != ERROR_TARGET_TIMEOUT)
878 target->running_alg = false;
879
880 done:
881 return retval;
882 }
883
884 /**
885 * Streams data to a circular buffer on target intended for consumption by code
886 * running asynchronously on target.
887 *
888 * This is intended for applications where target-specific native code runs
889 * on the target, receives data from the circular buffer, does something with
890 * it (most likely writing it to a flash memory), and advances the circular
891 * buffer pointer.
892 *
893 * This assumes that the helper algorithm has already been loaded to the target,
894 * but has not been started yet. Given memory and register parameters are passed
895 * to the algorithm.
896 *
897 * The buffer is defined by (buffer_start, buffer_size) arguments and has the
898 * following format:
899 *
900 * [buffer_start + 0, buffer_start + 4):
901 * Write Pointer address (aka head). Written and updated by this
902 * routine when new data is written to the circular buffer.
903 * [buffer_start + 4, buffer_start + 8):
904 * Read Pointer address (aka tail). Updated by code running on the
905 * target after it consumes data.
906 * [buffer_start + 8, buffer_start + buffer_size):
907 * Circular buffer contents.
908 *
909 * See contrib/loaders/flash/stm32f1x.S for an example.
910 *
911 * @param target used to run the algorithm
912 * @param buffer address on the host where data to be sent is located
913 * @param count number of blocks to send
914 * @param block_size size in bytes of each block
915 * @param num_mem_params count of memory-based params to pass to algorithm
916 * @param mem_params memory-based params to pass to algorithm
917 * @param num_reg_params count of register-based params to pass to algorithm
918 * @param reg_params memory-based params to pass to algorithm
919 * @param buffer_start address on the target of the circular buffer structure
920 * @param buffer_size size of the circular buffer structure
921 * @param entry_point address on the target to execute to start the algorithm
922 * @param exit_point address at which to set a breakpoint to catch the
923 * end of the algorithm; can be 0 if target triggers a breakpoint itself
924 */
925
926 int target_run_flash_async_algorithm(struct target *target,
927 const uint8_t *buffer, uint32_t count, int block_size,
928 int num_mem_params, struct mem_param *mem_params,
929 int num_reg_params, struct reg_param *reg_params,
930 uint32_t buffer_start, uint32_t buffer_size,
931 uint32_t entry_point, uint32_t exit_point, void *arch_info)
932 {
933 int retval;
934 int timeout = 0;
935
936 const uint8_t *buffer_orig = buffer;
937
938 /* Set up working area. First word is write pointer, second word is read pointer,
939 * rest is fifo data area. */
940 uint32_t wp_addr = buffer_start;
941 uint32_t rp_addr = buffer_start + 4;
942 uint32_t fifo_start_addr = buffer_start + 8;
943 uint32_t fifo_end_addr = buffer_start + buffer_size;
944
945 uint32_t wp = fifo_start_addr;
946 uint32_t rp = fifo_start_addr;
947
948 /* validate block_size is 2^n */
949 assert(!block_size || !(block_size & (block_size - 1)));
950
951 retval = target_write_u32(target, wp_addr, wp);
952 if (retval != ERROR_OK)
953 return retval;
954 retval = target_write_u32(target, rp_addr, rp);
955 if (retval != ERROR_OK)
956 return retval;
957
958 /* Start up algorithm on target and let it idle while writing the first chunk */
959 retval = target_start_algorithm(target, num_mem_params, mem_params,
960 num_reg_params, reg_params,
961 entry_point,
962 exit_point,
963 arch_info);
964
965 if (retval != ERROR_OK) {
966 LOG_ERROR("error starting target flash write algorithm");
967 return retval;
968 }
969
970 while (count > 0) {
971
972 retval = target_read_u32(target, rp_addr, &rp);
973 if (retval != ERROR_OK) {
974 LOG_ERROR("failed to get read pointer");
975 break;
976 }
977
978 LOG_DEBUG("offs 0x%zx count 0x%" PRIx32 " wp 0x%" PRIx32 " rp 0x%" PRIx32,
979 (size_t) (buffer - buffer_orig), count, wp, rp);
980
981 if (rp == 0) {
982 LOG_ERROR("flash write algorithm aborted by target");
983 retval = ERROR_FLASH_OPERATION_FAILED;
984 break;
985 }
986
987 if (((rp - fifo_start_addr) & (block_size - 1)) || rp < fifo_start_addr || rp >= fifo_end_addr) {
988 LOG_ERROR("corrupted fifo read pointer 0x%" PRIx32, rp);
989 break;
990 }
991
992 /* Count the number of bytes available in the fifo without
993 * crossing the wrap around. Make sure to not fill it completely,
994 * because that would make wp == rp and that's the empty condition. */
995 uint32_t thisrun_bytes;
996 if (rp > wp)
997 thisrun_bytes = rp - wp - block_size;
998 else if (rp > fifo_start_addr)
999 thisrun_bytes = fifo_end_addr - wp;
1000 else
1001 thisrun_bytes = fifo_end_addr - wp - block_size;
1002
1003 if (thisrun_bytes == 0) {
1004 /* Throttle polling a bit if transfer is (much) faster than flash
1005 * programming. The exact delay shouldn't matter as long as it's
1006 * less than buffer size / flash speed. This is very unlikely to
1007 * run when using high latency connections such as USB. */
1008 alive_sleep(10);
1009
1010 /* to stop an infinite loop on some targets check and increment a timeout
1011 * this issue was observed on a stellaris using the new ICDI interface */
1012 if (timeout++ >= 500) {
1013 LOG_ERROR("timeout waiting for algorithm, a target reset is recommended");
1014 return ERROR_FLASH_OPERATION_FAILED;
1015 }
1016 continue;
1017 }
1018
1019 /* reset our timeout */
1020 timeout = 0;
1021
1022 /* Limit to the amount of data we actually want to write */
1023 if (thisrun_bytes > count * block_size)
1024 thisrun_bytes = count * block_size;
1025
1026 /* Write data to fifo */
1027 retval = target_write_buffer(target, wp, thisrun_bytes, buffer);
1028 if (retval != ERROR_OK)
1029 break;
1030
1031 /* Update counters and wrap write pointer */
1032 buffer += thisrun_bytes;
1033 count -= thisrun_bytes / block_size;
1034 wp += thisrun_bytes;
1035 if (wp >= fifo_end_addr)
1036 wp = fifo_start_addr;
1037
1038 /* Store updated write pointer to target */
1039 retval = target_write_u32(target, wp_addr, wp);
1040 if (retval != ERROR_OK)
1041 break;
1042 }
1043
1044 if (retval != ERROR_OK) {
1045 /* abort flash write algorithm on target */
1046 target_write_u32(target, wp_addr, 0);
1047 }
1048
1049 int retval2 = target_wait_algorithm(target, num_mem_params, mem_params,
1050 num_reg_params, reg_params,
1051 exit_point,
1052 10000,
1053 arch_info);
1054
1055 if (retval2 != ERROR_OK) {
1056 LOG_ERROR("error waiting for target flash write algorithm");
1057 retval = retval2;
1058 }
1059
1060 if (retval == ERROR_OK) {
1061 /* check if algorithm set rp = 0 after fifo writer loop finished */
1062 retval = target_read_u32(target, rp_addr, &rp);
1063 if (retval == ERROR_OK && rp == 0) {
1064 LOG_ERROR("flash write algorithm aborted by target");
1065 retval = ERROR_FLASH_OPERATION_FAILED;
1066 }
1067 }
1068
1069 return retval;
1070 }
1071
1072 int target_read_memory(struct target *target,
1073 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1074 {
1075 if (!target_was_examined(target)) {
1076 LOG_ERROR("Target not examined yet");
1077 return ERROR_FAIL;
1078 }
1079 if (!target->type->read_memory) {
1080 LOG_ERROR("Target %s doesn't support read_memory", target_name(target));
1081 return ERROR_FAIL;
1082 }
1083 return target->type->read_memory(target, address, size, count, buffer);
1084 }
1085
1086 int target_read_phys_memory(struct target *target,
1087 target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer)
1088 {
1089 if (!target_was_examined(target)) {
1090 LOG_ERROR("Target not examined yet");
1091 return ERROR_FAIL;
1092 }
1093 if (!target->type->read_phys_memory) {
1094 LOG_ERROR("Target %s doesn't support read_phys_memory", target_name(target));
1095 return ERROR_FAIL;
1096 }
1097 return target->type->read_phys_memory(target, address, size, count, buffer);
1098 }
1099
1100 int target_write_memory(struct target *target,
1101 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1102 {
1103 if (!target_was_examined(target)) {
1104 LOG_ERROR("Target not examined yet");
1105 return ERROR_FAIL;
1106 }
1107 if (!target->type->write_memory) {
1108 LOG_ERROR("Target %s doesn't support write_memory", target_name(target));
1109 return ERROR_FAIL;
1110 }
1111 return target->type->write_memory(target, address, size, count, buffer);
1112 }
1113
1114 int target_write_phys_memory(struct target *target,
1115 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer)
1116 {
1117 if (!target_was_examined(target)) {
1118 LOG_ERROR("Target not examined yet");
1119 return ERROR_FAIL;
1120 }
1121 if (!target->type->write_phys_memory) {
1122 LOG_ERROR("Target %s doesn't support write_phys_memory", target_name(target));
1123 return ERROR_FAIL;
1124 }
1125 return target->type->write_phys_memory(target, address, size, count, buffer);
1126 }
1127
1128 int target_add_breakpoint(struct target *target,
1129 struct breakpoint *breakpoint)
1130 {
1131 if ((target->state != TARGET_HALTED) && (breakpoint->type != BKPT_HARD)) {
1132 LOG_WARNING("target %s is not halted (add breakpoint)", target_name(target));
1133 return ERROR_TARGET_NOT_HALTED;
1134 }
1135 return target->type->add_breakpoint(target, breakpoint);
1136 }
1137
1138 int target_add_context_breakpoint(struct target *target,
1139 struct breakpoint *breakpoint)
1140 {
1141 if (target->state != TARGET_HALTED) {
1142 LOG_WARNING("target %s is not halted (add context breakpoint)", target_name(target));
1143 return ERROR_TARGET_NOT_HALTED;
1144 }
1145 return target->type->add_context_breakpoint(target, breakpoint);
1146 }
1147
1148 int target_add_hybrid_breakpoint(struct target *target,
1149 struct breakpoint *breakpoint)
1150 {
1151 if (target->state != TARGET_HALTED) {
1152 LOG_WARNING("target %s is not halted (add hybrid breakpoint)", target_name(target));
1153 return ERROR_TARGET_NOT_HALTED;
1154 }
1155 return target->type->add_hybrid_breakpoint(target, breakpoint);
1156 }
1157
1158 int target_remove_breakpoint(struct target *target,
1159 struct breakpoint *breakpoint)
1160 {
1161 return target->type->remove_breakpoint(target, breakpoint);
1162 }
1163
1164 int target_add_watchpoint(struct target *target,
1165 struct watchpoint *watchpoint)
1166 {
1167 if (target->state != TARGET_HALTED) {
1168 LOG_WARNING("target %s is not halted (add watchpoint)", target_name(target));
1169 return ERROR_TARGET_NOT_HALTED;
1170 }
1171 return target->type->add_watchpoint(target, watchpoint);
1172 }
1173 int target_remove_watchpoint(struct target *target,
1174 struct watchpoint *watchpoint)
1175 {
1176 return target->type->remove_watchpoint(target, watchpoint);
1177 }
1178 int target_hit_watchpoint(struct target *target,
1179 struct watchpoint **hit_watchpoint)
1180 {
1181 if (target->state != TARGET_HALTED) {
1182 LOG_WARNING("target %s is not halted (hit watchpoint)", target->cmd_name);
1183 return ERROR_TARGET_NOT_HALTED;
1184 }
1185
1186 if (target->type->hit_watchpoint == NULL) {
1187 /* For backward compatible, if hit_watchpoint is not implemented,
1188 * return ERROR_FAIL such that gdb_server will not take the nonsense
1189 * information. */
1190 return ERROR_FAIL;
1191 }
1192
1193 return target->type->hit_watchpoint(target, hit_watchpoint);
1194 }
1195
1196 int target_get_gdb_reg_list(struct target *target,
1197 struct reg **reg_list[], int *reg_list_size,
1198 enum target_register_class reg_class)
1199 {
1200 return target->type->get_gdb_reg_list(target, reg_list, reg_list_size, reg_class);
1201 }
1202 int target_step(struct target *target,
1203 int current, target_addr_t address, int handle_breakpoints)
1204 {
1205 return target->type->step(target, current, address, handle_breakpoints);
1206 }
1207
1208 int target_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info)
1209 {
1210 if (target->state != TARGET_HALTED) {
1211 LOG_WARNING("target %s is not halted (gdb fileio)", target->cmd_name);
1212 return ERROR_TARGET_NOT_HALTED;
1213 }
1214 return target->type->get_gdb_fileio_info(target, fileio_info);
1215 }
1216
1217 int target_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c)
1218 {
1219 if (target->state != TARGET_HALTED) {
1220 LOG_WARNING("target %s is not halted (gdb fileio end)", target->cmd_name);
1221 return ERROR_TARGET_NOT_HALTED;
1222 }
1223 return target->type->gdb_fileio_end(target, retcode, fileio_errno, ctrl_c);
1224 }
1225
1226 int target_profiling(struct target *target, uint32_t *samples,
1227 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
1228 {
1229 if (target->state != TARGET_HALTED) {
1230 LOG_WARNING("target %s is not halted (profiling)", target->cmd_name);
1231 return ERROR_TARGET_NOT_HALTED;
1232 }
1233 return target->type->profiling(target, samples, max_num_samples,
1234 num_samples, seconds);
1235 }
1236
1237 /**
1238 * Reset the @c examined flag for the given target.
1239 * Pure paranoia -- targets are zeroed on allocation.
1240 */
1241 static void target_reset_examined(struct target *target)
1242 {
1243 target->examined = false;
1244 }
1245
1246 static int handle_target(void *priv);
1247
1248 static int target_init_one(struct command_context *cmd_ctx,
1249 struct target *target)
1250 {
1251 target_reset_examined(target);
1252
1253 struct target_type *type = target->type;
1254 if (type->examine == NULL)
1255 type->examine = default_examine;
1256
1257 if (type->check_reset == NULL)
1258 type->check_reset = default_check_reset;
1259
1260 assert(type->init_target != NULL);
1261
1262 int retval = type->init_target(cmd_ctx, target);
1263 if (ERROR_OK != retval) {
1264 LOG_ERROR("target '%s' init failed", target_name(target));
1265 return retval;
1266 }
1267
1268 /* Sanity-check MMU support ... stub in what we must, to help
1269 * implement it in stages, but warn if we need to do so.
1270 */
1271 if (type->mmu) {
1272 if (type->virt2phys == NULL) {
1273 LOG_ERROR("type '%s' is missing virt2phys", type->name);
1274 type->virt2phys = identity_virt2phys;
1275 }
1276 } else {
1277 /* Make sure no-MMU targets all behave the same: make no
1278 * distinction between physical and virtual addresses, and
1279 * ensure that virt2phys() is always an identity mapping.
1280 */
1281 if (type->write_phys_memory || type->read_phys_memory || type->virt2phys)
1282 LOG_WARNING("type '%s' has bad MMU hooks", type->name);
1283
1284 type->mmu = no_mmu;
1285 type->write_phys_memory = type->write_memory;
1286 type->read_phys_memory = type->read_memory;
1287 type->virt2phys = identity_virt2phys;
1288 }
1289
1290 if (target->type->read_buffer == NULL)
1291 target->type->read_buffer = target_read_buffer_default;
1292
1293 if (target->type->write_buffer == NULL)
1294 target->type->write_buffer = target_write_buffer_default;
1295
1296 if (target->type->get_gdb_fileio_info == NULL)
1297 target->type->get_gdb_fileio_info = target_get_gdb_fileio_info_default;
1298
1299 if (target->type->gdb_fileio_end == NULL)
1300 target->type->gdb_fileio_end = target_gdb_fileio_end_default;
1301
1302 if (target->type->profiling == NULL)
1303 target->type->profiling = target_profiling_default;
1304
1305 return ERROR_OK;
1306 }
1307
1308 static int target_init(struct command_context *cmd_ctx)
1309 {
1310 struct target *target;
1311 int retval;
1312
1313 for (target = all_targets; target; target = target->next) {
1314 retval = target_init_one(cmd_ctx, target);
1315 if (ERROR_OK != retval)
1316 return retval;
1317 }
1318
1319 if (!all_targets)
1320 return ERROR_OK;
1321
1322 retval = target_register_user_commands(cmd_ctx);
1323 if (ERROR_OK != retval)
1324 return retval;
1325
1326 retval = target_register_timer_callback(&handle_target,
1327 polling_interval, 1, cmd_ctx->interp);
1328 if (ERROR_OK != retval)
1329 return retval;
1330
1331 return ERROR_OK;
1332 }
1333
1334 COMMAND_HANDLER(handle_target_init_command)
1335 {
1336 int retval;
1337
1338 if (CMD_ARGC != 0)
1339 return ERROR_COMMAND_SYNTAX_ERROR;
1340
1341 static bool target_initialized;
1342 if (target_initialized) {
1343 LOG_INFO("'target init' has already been called");
1344 return ERROR_OK;
1345 }
1346 target_initialized = true;
1347
1348 retval = command_run_line(CMD_CTX, "init_targets");
1349 if (ERROR_OK != retval)
1350 return retval;
1351
1352 retval = command_run_line(CMD_CTX, "init_target_events");
1353 if (ERROR_OK != retval)
1354 return retval;
1355
1356 retval = command_run_line(CMD_CTX, "init_board");
1357 if (ERROR_OK != retval)
1358 return retval;
1359
1360 LOG_DEBUG("Initializing targets...");
1361 return target_init(CMD_CTX);
1362 }
1363
1364 int target_register_event_callback(int (*callback)(struct target *target,
1365 enum target_event event, void *priv), void *priv)
1366 {
1367 struct target_event_callback **callbacks_p = &target_event_callbacks;
1368
1369 if (callback == NULL)
1370 return ERROR_COMMAND_SYNTAX_ERROR;
1371
1372 if (*callbacks_p) {
1373 while ((*callbacks_p)->next)
1374 callbacks_p = &((*callbacks_p)->next);
1375 callbacks_p = &((*callbacks_p)->next);
1376 }
1377
1378 (*callbacks_p) = malloc(sizeof(struct target_event_callback));
1379 (*callbacks_p)->callback = callback;
1380 (*callbacks_p)->priv = priv;
1381 (*callbacks_p)->next = NULL;
1382
1383 return ERROR_OK;
1384 }
1385
1386 int target_register_reset_callback(int (*callback)(struct target *target,
1387 enum target_reset_mode reset_mode, void *priv), void *priv)
1388 {
1389 struct target_reset_callback *entry;
1390
1391 if (callback == NULL)
1392 return ERROR_COMMAND_SYNTAX_ERROR;
1393
1394 entry = malloc(sizeof(struct target_reset_callback));
1395 if (entry == NULL) {
1396 LOG_ERROR("error allocating buffer for reset callback entry");
1397 return ERROR_COMMAND_SYNTAX_ERROR;
1398 }
1399
1400 entry->callback = callback;
1401 entry->priv = priv;
1402 list_add(&entry->list, &target_reset_callback_list);
1403
1404
1405 return ERROR_OK;
1406 }
1407
1408 int target_register_trace_callback(int (*callback)(struct target *target,
1409 size_t len, uint8_t *data, void *priv), void *priv)
1410 {
1411 struct target_trace_callback *entry;
1412
1413 if (callback == NULL)
1414 return ERROR_COMMAND_SYNTAX_ERROR;
1415
1416 entry = malloc(sizeof(struct target_trace_callback));
1417 if (entry == NULL) {
1418 LOG_ERROR("error allocating buffer for trace callback entry");
1419 return ERROR_COMMAND_SYNTAX_ERROR;
1420 }
1421
1422 entry->callback = callback;
1423 entry->priv = priv;
1424 list_add(&entry->list, &target_trace_callback_list);
1425
1426
1427 return ERROR_OK;
1428 }
1429
1430 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
1431 {
1432 struct target_timer_callback **callbacks_p = &target_timer_callbacks;
1433
1434 if (callback == NULL)
1435 return ERROR_COMMAND_SYNTAX_ERROR;
1436
1437 if (*callbacks_p) {
1438 while ((*callbacks_p)->next)
1439 callbacks_p = &((*callbacks_p)->next);
1440 callbacks_p = &((*callbacks_p)->next);
1441 }
1442
1443 (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
1444 (*callbacks_p)->callback = callback;
1445 (*callbacks_p)->periodic = periodic;
1446 (*callbacks_p)->time_ms = time_ms;
1447 (*callbacks_p)->removed = false;
1448
1449 gettimeofday(&(*callbacks_p)->when, NULL);
1450 timeval_add_time(&(*callbacks_p)->when, 0, time_ms * 1000);
1451
1452 (*callbacks_p)->priv = priv;
1453 (*callbacks_p)->next = NULL;
1454
1455 return ERROR_OK;
1456 }
1457
1458 int target_unregister_event_callback(int (*callback)(struct target *target,
1459 enum target_event event, void *priv), void *priv)
1460 {
1461 struct target_event_callback **p = &target_event_callbacks;
1462 struct target_event_callback *c = target_event_callbacks;
1463
1464 if (callback == NULL)
1465 return ERROR_COMMAND_SYNTAX_ERROR;
1466
1467 while (c) {
1468 struct target_event_callback *next = c->next;
1469 if ((c->callback == callback) && (c->priv == priv)) {
1470 *p = next;
1471 free(c);
1472 return ERROR_OK;
1473 } else
1474 p = &(c->next);
1475 c = next;
1476 }
1477
1478 return ERROR_OK;
1479 }
1480
1481 int target_unregister_reset_callback(int (*callback)(struct target *target,
1482 enum target_reset_mode reset_mode, void *priv), void *priv)
1483 {
1484 struct target_reset_callback *entry;
1485
1486 if (callback == NULL)
1487 return ERROR_COMMAND_SYNTAX_ERROR;
1488
1489 list_for_each_entry(entry, &target_reset_callback_list, list) {
1490 if (entry->callback == callback && entry->priv == priv) {
1491 list_del(&entry->list);
1492 free(entry);
1493 break;
1494 }
1495 }
1496
1497 return ERROR_OK;
1498 }
1499
1500 int target_unregister_trace_callback(int (*callback)(struct target *target,
1501 size_t len, uint8_t *data, void *priv), void *priv)
1502 {
1503 struct target_trace_callback *entry;
1504
1505 if (callback == NULL)
1506 return ERROR_COMMAND_SYNTAX_ERROR;
1507
1508 list_for_each_entry(entry, &target_trace_callback_list, list) {
1509 if (entry->callback == callback && entry->priv == priv) {
1510 list_del(&entry->list);
1511 free(entry);
1512 break;
1513 }
1514 }
1515
1516 return ERROR_OK;
1517 }
1518
1519 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
1520 {
1521 if (callback == NULL)
1522 return ERROR_COMMAND_SYNTAX_ERROR;
1523
1524 for (struct target_timer_callback *c = target_timer_callbacks;
1525 c; c = c->next) {
1526 if ((c->callback == callback) && (c->priv == priv)) {
1527 c->removed = true;
1528 return ERROR_OK;
1529 }
1530 }
1531
1532 return ERROR_FAIL;
1533 }
1534
1535 int target_call_event_callbacks(struct target *target, enum target_event event)
1536 {
1537 struct target_event_callback *callback = target_event_callbacks;
1538 struct target_event_callback *next_callback;
1539
1540 if (event == TARGET_EVENT_HALTED) {
1541 /* execute early halted first */
1542 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
1543 }
1544
1545 LOG_DEBUG("target event %i (%s)", event,
1546 Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
1547
1548 target_handle_event(target, event);
1549
1550 while (callback) {
1551 next_callback = callback->next;
1552 callback->callback(target, event, callback->priv);
1553 callback = next_callback;
1554 }
1555
1556 return ERROR_OK;
1557 }
1558
1559 int target_call_reset_callbacks(struct target *target, enum target_reset_mode reset_mode)
1560 {
1561 struct target_reset_callback *callback;
1562
1563 LOG_DEBUG("target reset %i (%s)", reset_mode,
1564 Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode)->name);
1565
1566 list_for_each_entry(callback, &target_reset_callback_list, list)
1567 callback->callback(target, reset_mode, callback->priv);
1568
1569 return ERROR_OK;
1570 }
1571
1572 int target_call_trace_callbacks(struct target *target, size_t len, uint8_t *data)
1573 {
1574 struct target_trace_callback *callback;
1575
1576 list_for_each_entry(callback, &target_trace_callback_list, list)
1577 callback->callback(target, len, data, callback->priv);
1578
1579 return ERROR_OK;
1580 }
1581
1582 static int target_timer_callback_periodic_restart(
1583 struct target_timer_callback *cb, struct timeval *now)
1584 {
1585 cb->when = *now;
1586 timeval_add_time(&cb->when, 0, cb->time_ms * 1000L);
1587 return ERROR_OK;
1588 }
1589
1590 static int target_call_timer_callback(struct target_timer_callback *cb,
1591 struct timeval *now)
1592 {
1593 cb->callback(cb->priv);
1594
1595 if (cb->periodic)
1596 return target_timer_callback_periodic_restart(cb, now);
1597
1598 return target_unregister_timer_callback(cb->callback, cb->priv);
1599 }
1600
1601 static int target_call_timer_callbacks_check_time(int checktime)
1602 {
1603 static bool callback_processing;
1604
1605 /* Do not allow nesting */
1606 if (callback_processing)
1607 return ERROR_OK;
1608
1609 callback_processing = true;
1610
1611 keep_alive();
1612
1613 struct timeval now;
1614 gettimeofday(&now, NULL);
1615
1616 /* Store an address of the place containing a pointer to the
1617 * next item; initially, that's a standalone "root of the
1618 * list" variable. */
1619 struct target_timer_callback **callback = &target_timer_callbacks;
1620 while (*callback) {
1621 if ((*callback)->removed) {
1622 struct target_timer_callback *p = *callback;
1623 *callback = (*callback)->next;
1624 free(p);
1625 continue;
1626 }
1627
1628 bool call_it = (*callback)->callback &&
1629 ((!checktime && (*callback)->periodic) ||
1630 timeval_compare(&now, &(*callback)->when) >= 0);
1631
1632 if (call_it)
1633 target_call_timer_callback(*callback, &now);
1634
1635 callback = &(*callback)->next;
1636 }
1637
1638 callback_processing = false;
1639 return ERROR_OK;
1640 }
1641
1642 int target_call_timer_callbacks(void)
1643 {
1644 return target_call_timer_callbacks_check_time(1);
1645 }
1646
1647 /* invoke periodic callbacks immediately */
1648 int target_call_timer_callbacks_now(void)
1649 {
1650 return target_call_timer_callbacks_check_time(0);
1651 }
1652
1653 /* Prints the working area layout for debug purposes */
1654 static void print_wa_layout(struct target *target)
1655 {
1656 struct working_area *c = target->working_areas;
1657
1658 while (c) {
1659 LOG_DEBUG("%c%c " TARGET_ADDR_FMT "-" TARGET_ADDR_FMT " (%" PRIu32 " bytes)",
1660 c->backup ? 'b' : ' ', c->free ? ' ' : '*',
1661 c->address, c->address + c->size - 1, c->size);
1662 c = c->next;
1663 }
1664 }
1665
1666 /* Reduce area to size bytes, create a new free area from the remaining bytes, if any. */
1667 static void target_split_working_area(struct working_area *area, uint32_t size)
1668 {
1669 assert(area->free); /* Shouldn't split an allocated area */
1670 assert(size <= area->size); /* Caller should guarantee this */
1671
1672 /* Split only if not already the right size */
1673 if (size < area->size) {
1674 struct working_area *new_wa = malloc(sizeof(*new_wa));
1675
1676 if (new_wa == NULL)
1677 return;
1678
1679 new_wa->next = area->next;
1680 new_wa->size = area->size - size;
1681 new_wa->address = area->address + size;
1682 new_wa->backup = NULL;
1683 new_wa->user = NULL;
1684 new_wa->free = true;
1685
1686 area->next = new_wa;
1687 area->size = size;
1688
1689 /* If backup memory was allocated to this area, it has the wrong size
1690 * now so free it and it will be reallocated if/when needed */
1691 if (area->backup) {
1692 free(area->backup);
1693 area->backup = NULL;
1694 }
1695 }
1696 }
1697
1698 /* Merge all adjacent free areas into one */
1699 static void target_merge_working_areas(struct target *target)
1700 {
1701 struct working_area *c = target->working_areas;
1702
1703 while (c && c->next) {
1704 assert(c->next->address == c->address + c->size); /* This is an invariant */
1705
1706 /* Find two adjacent free areas */
1707 if (c->free && c->next->free) {
1708 /* Merge the last into the first */
1709 c->size += c->next->size;
1710
1711 /* Remove the last */
1712 struct working_area *to_be_freed = c->next;
1713 c->next = c->next->next;
1714 if (to_be_freed->backup)
1715 free(to_be_freed->backup);
1716 free(to_be_freed);
1717
1718 /* If backup memory was allocated to the remaining area, it's has
1719 * the wrong size now */
1720 if (c->backup) {
1721 free(c->backup);
1722 c->backup = NULL;
1723 }
1724 } else {
1725 c = c->next;
1726 }
1727 }
1728 }
1729
1730 int target_alloc_working_area_try(struct target *target, uint32_t size, struct working_area **area)
1731 {
1732 /* Reevaluate working area address based on MMU state*/
1733 if (target->working_areas == NULL) {
1734 int retval;
1735 int enabled;
1736
1737 retval = target->type->mmu(target, &enabled);
1738 if (retval != ERROR_OK)
1739 return retval;
1740
1741 if (!enabled) {
1742 if (target->working_area_phys_spec) {
1743 LOG_DEBUG("MMU disabled, using physical "
1744 "address for working memory " TARGET_ADDR_FMT,
1745 target->working_area_phys);
1746 target->working_area = target->working_area_phys;
1747 } else {
1748 LOG_ERROR("No working memory available. "
1749 "Specify -work-area-phys to target.");
1750 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1751 }
1752 } else {
1753 if (target->working_area_virt_spec) {
1754 LOG_DEBUG("MMU enabled, using virtual "
1755 "address for working memory " TARGET_ADDR_FMT,
1756 target->working_area_virt);
1757 target->working_area = target->working_area_virt;
1758 } else {
1759 LOG_ERROR("No working memory available. "
1760 "Specify -work-area-virt to target.");
1761 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1762 }
1763 }
1764
1765 /* Set up initial working area on first call */
1766 struct working_area *new_wa = malloc(sizeof(*new_wa));
1767 if (new_wa) {
1768 new_wa->next = NULL;
1769 new_wa->size = target->working_area_size & ~3UL; /* 4-byte align */
1770 new_wa->address = target->working_area;
1771 new_wa->backup = NULL;
1772 new_wa->user = NULL;
1773 new_wa->free = true;
1774 }
1775
1776 target->working_areas = new_wa;
1777 }
1778
1779 /* only allocate multiples of 4 byte */
1780 if (size % 4)
1781 size = (size + 3) & (~3UL);
1782
1783 struct working_area *c = target->working_areas;
1784
1785 /* Find the first large enough working area */
1786 while (c) {
1787 if (c->free && c->size >= size)
1788 break;
1789 c = c->next;
1790 }
1791
1792 if (c == NULL)
1793 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
1794
1795 /* Split the working area into the requested size */
1796 target_split_working_area(c, size);
1797
1798 LOG_DEBUG("allocated new working area of %" PRIu32 " bytes at address " TARGET_ADDR_FMT,
1799 size, c->address);
1800
1801 if (target->backup_working_area) {
1802 if (c->backup == NULL) {
1803 c->backup = malloc(c->size);
1804 if (c->backup == NULL)
1805 return ERROR_FAIL;
1806 }
1807
1808 int retval = target_read_memory(target, c->address, 4, c->size / 4, c->backup);
1809 if (retval != ERROR_OK)
1810 return retval;
1811 }
1812
1813 /* mark as used, and return the new (reused) area */
1814 c->free = false;
1815 *area = c;
1816
1817 /* user pointer */
1818 c->user = area;
1819
1820 print_wa_layout(target);
1821
1822 return ERROR_OK;
1823 }
1824
1825 int target_alloc_working_area(struct target *target, uint32_t size, struct working_area **area)
1826 {
1827 int retval;
1828
1829 retval = target_alloc_working_area_try(target, size, area);
1830 if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
1831 LOG_WARNING("not enough working area available(requested %"PRIu32")", size);
1832 return retval;
1833
1834 }
1835
1836 static int target_restore_working_area(struct target *target, struct working_area *area)
1837 {
1838 int retval = ERROR_OK;
1839
1840 if (target->backup_working_area && area->backup != NULL) {
1841 retval = target_write_memory(target, area->address, 4, area->size / 4, area->backup);
1842 if (retval != ERROR_OK)
1843 LOG_ERROR("failed to restore %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
1844 area->size, area->address);
1845 }
1846
1847 return retval;
1848 }
1849
1850 /* Restore the area's backup memory, if any, and return the area to the allocation pool */
1851 static int target_free_working_area_restore(struct target *target, struct working_area *area, int restore)
1852 {
1853 int retval = ERROR_OK;
1854
1855 if (area->free)
1856 return retval;
1857
1858 if (restore) {
1859 retval = target_restore_working_area(target, area);
1860 /* REVISIT: Perhaps the area should be freed even if restoring fails. */
1861 if (retval != ERROR_OK)
1862 return retval;
1863 }
1864
1865 area->free = true;
1866
1867 LOG_DEBUG("freed %" PRIu32 " bytes of working area at address " TARGET_ADDR_FMT,
1868 area->size, area->address);
1869
1870 /* mark user pointer invalid */
1871 /* TODO: Is this really safe? It points to some previous caller's memory.
1872 * How could we know that the area pointer is still in that place and not
1873 * some other vital data? What's the purpose of this, anyway? */
1874 *area->user = NULL;
1875 area->user = NULL;
1876
1877 target_merge_working_areas(target);
1878
1879 print_wa_layout(target);
1880
1881 return retval;
1882 }
1883
1884 int target_free_working_area(struct target *target, struct working_area *area)
1885 {
1886 return target_free_working_area_restore(target, area, 1);
1887 }
1888
1889 static void target_destroy(struct target *target)
1890 {
1891 if (target->type->deinit_target)
1892 target->type->deinit_target(target);
1893
1894 free(target->type);
1895 free(target->trace_info);
1896 free(target->cmd_name);
1897 free(target);
1898 }
1899
1900 void target_quit(void)
1901 {
1902 struct target_event_callback *pe = target_event_callbacks;
1903 while (pe) {
1904 struct target_event_callback *t = pe->next;
1905 free(pe);
1906 pe = t;
1907 }
1908 target_event_callbacks = NULL;
1909
1910 struct target_timer_callback *pt = target_timer_callbacks;
1911 while (pt) {
1912 struct target_timer_callback *t = pt->next;
1913 free(pt);
1914 pt = t;
1915 }
1916 target_timer_callbacks = NULL;
1917
1918 for (struct target *target = all_targets; target;) {
1919 struct target *tmp;
1920
1921 tmp = target->next;
1922 target_destroy(target);
1923 target = tmp;
1924 }
1925
1926 all_targets = NULL;
1927 }
1928
1929 /* free resources and restore memory, if restoring memory fails,
1930 * free up resources anyway
1931 */
1932 static void target_free_all_working_areas_restore(struct target *target, int restore)
1933 {
1934 struct working_area *c = target->working_areas;
1935
1936 LOG_DEBUG("freeing all working areas");
1937
1938 /* Loop through all areas, restoring the allocated ones and marking them as free */
1939 while (c) {
1940 if (!c->free) {
1941 if (restore)
1942 target_restore_working_area(target, c);
1943 c->free = true;
1944 *c->user = NULL; /* Same as above */
1945 c->user = NULL;
1946 }
1947 c = c->next;
1948 }
1949
1950 /* Run a merge pass to combine all areas into one */
1951 target_merge_working_areas(target);
1952
1953 print_wa_layout(target);
1954 }
1955
1956 void target_free_all_working_areas(struct target *target)
1957 {
1958 target_free_all_working_areas_restore(target, 1);
1959 }
1960
1961 /* Find the largest number of bytes that can be allocated */
1962 uint32_t target_get_working_area_avail(struct target *target)
1963 {
1964 struct working_area *c = target->working_areas;
1965 uint32_t max_size = 0;
1966
1967 if (c == NULL)
1968 return target->working_area_size;
1969
1970 while (c) {
1971 if (c->free && max_size < c->size)
1972 max_size = c->size;
1973
1974 c = c->next;
1975 }
1976
1977 return max_size;
1978 }
1979
1980 int target_arch_state(struct target *target)
1981 {
1982 int retval;
1983 if (target == NULL) {
1984 LOG_WARNING("No target has been configured");
1985 return ERROR_OK;
1986 }
1987
1988 if (target->state != TARGET_HALTED)
1989 return ERROR_OK;
1990
1991 retval = target->type->arch_state(target);
1992 return retval;
1993 }
1994
1995 static int target_get_gdb_fileio_info_default(struct target *target,
1996 struct gdb_fileio_info *fileio_info)
1997 {
1998 /* If target does not support semi-hosting function, target
1999 has no need to provide .get_gdb_fileio_info callback.
2000 It just return ERROR_FAIL and gdb_server will return "Txx"
2001 as target halted every time. */
2002 return ERROR_FAIL;
2003 }
2004
2005 static int target_gdb_fileio_end_default(struct target *target,
2006 int retcode, int fileio_errno, bool ctrl_c)
2007 {
2008 return ERROR_OK;
2009 }
2010
2011 static int target_profiling_default(struct target *target, uint32_t *samples,
2012 uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
2013 {
2014 struct timeval timeout, now;
2015
2016 gettimeofday(&timeout, NULL);
2017 timeval_add_time(&timeout, seconds, 0);
2018
2019 LOG_INFO("Starting profiling. Halting and resuming the"
2020 " target as often as we can...");
2021
2022 uint32_t sample_count = 0;
2023 /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
2024 struct reg *reg = register_get_by_name(target->reg_cache, "pc", 1);
2025
2026 int retval = ERROR_OK;
2027 for (;;) {
2028 target_poll(target);
2029 if (target->state == TARGET_HALTED) {
2030 uint32_t t = buf_get_u32(reg->value, 0, 32);
2031 samples[sample_count++] = t;
2032 /* current pc, addr = 0, do not handle breakpoints, not debugging */
2033 retval = target_resume(target, 1, 0, 0, 0);
2034 target_poll(target);
2035 alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
2036 } else if (target->state == TARGET_RUNNING) {
2037 /* We want to quickly sample the PC. */
2038 retval = target_halt(target);
2039 } else {
2040 LOG_INFO("Target not halted or running");
2041 retval = ERROR_OK;
2042 break;
2043 }
2044
2045 if (retval != ERROR_OK)
2046 break;
2047
2048 gettimeofday(&now, NULL);
2049 if ((sample_count >= max_num_samples) || timeval_compare(&now, &timeout) >= 0) {
2050 LOG_INFO("Profiling completed. %" PRIu32 " samples.", sample_count);
2051 break;
2052 }
2053 }
2054
2055 *num_samples = sample_count;
2056 return retval;
2057 }
2058
2059 /* Single aligned words are guaranteed to use 16 or 32 bit access
2060 * mode respectively, otherwise data is handled as quickly as
2061 * possible
2062 */
2063 int target_write_buffer(struct target *target, target_addr_t address, uint32_t size, const uint8_t *buffer)
2064 {
2065 LOG_DEBUG("writing buffer of %" PRIi32 " byte at " TARGET_ADDR_FMT,
2066 size, address);
2067
2068 if (!target_was_examined(target)) {
2069 LOG_ERROR("Target not examined yet");
2070 return ERROR_FAIL;
2071 }
2072
2073 if (size == 0)
2074 return ERROR_OK;
2075
2076 if ((address + size - 1) < address) {
2077 /* GDB can request this when e.g. PC is 0xfffffffc */
2078 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2079 address,
2080 size);
2081 return ERROR_FAIL;
2082 }
2083
2084 return target->type->write_buffer(target, address, size, buffer);
2085 }
2086
2087 static int target_write_buffer_default(struct target *target,
2088 target_addr_t address, uint32_t count, const uint8_t *buffer)
2089 {
2090 uint32_t size;
2091
2092 /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2093 * will have something to do with the size we leave to it. */
2094 for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2095 if (address & size) {
2096 int retval = target_write_memory(target, address, size, 1, buffer);
2097 if (retval != ERROR_OK)
2098 return retval;
2099 address += size;
2100 count -= size;
2101 buffer += size;
2102 }
2103 }
2104
2105 /* Write the data with as large access size as possible. */
2106 for (; size > 0; size /= 2) {
2107 uint32_t aligned = count - count % size;
2108 if (aligned > 0) {
2109 int retval = target_write_memory(target, address, size, aligned / size, buffer);
2110 if (retval != ERROR_OK)
2111 return retval;
2112 address += aligned;
2113 count -= aligned;
2114 buffer += aligned;
2115 }
2116 }
2117
2118 return ERROR_OK;
2119 }
2120
2121 /* Single aligned words are guaranteed to use 16 or 32 bit access
2122 * mode respectively, otherwise data is handled as quickly as
2123 * possible
2124 */
2125 int target_read_buffer(struct target *target, target_addr_t address, uint32_t size, uint8_t *buffer)
2126 {
2127 LOG_DEBUG("reading buffer of %" PRIi32 " byte at " TARGET_ADDR_FMT,
2128 size, address);
2129
2130 if (!target_was_examined(target)) {
2131 LOG_ERROR("Target not examined yet");
2132 return ERROR_FAIL;
2133 }
2134
2135 if (size == 0)
2136 return ERROR_OK;
2137
2138 if ((address + size - 1) < address) {
2139 /* GDB can request this when e.g. PC is 0xfffffffc */
2140 LOG_ERROR("address + size wrapped (" TARGET_ADDR_FMT ", 0x%08" PRIx32 ")",
2141 address,
2142 size);
2143 return ERROR_FAIL;
2144 }
2145
2146 return target->type->read_buffer(target, address, size, buffer);
2147 }
2148
2149 static int target_read_buffer_default(struct target *target, target_addr_t address, uint32_t count, uint8_t *buffer)
2150 {
2151 uint32_t size;
2152
2153 /* Align up to maximum 4 bytes. The loop condition makes sure the next pass
2154 * will have something to do with the size we leave to it. */
2155 for (size = 1; size < 4 && count >= size * 2 + (address & size); size *= 2) {
2156 if (address & size) {
2157 int retval = target_read_memory(target, address, size, 1, buffer);
2158 if (retval != ERROR_OK)
2159 return retval;
2160 address += size;
2161 count -= size;
2162 buffer += size;
2163 }
2164 }
2165
2166 /* Read the data with as large access size as possible. */
2167 for (; size > 0; size /= 2) {
2168 uint32_t aligned = count - count % size;
2169 if (aligned > 0) {
2170 int retval = target_read_memory(target, address, size, aligned / size, buffer);
2171 if (retval != ERROR_OK)
2172 return retval;
2173 address += aligned;
2174 count -= aligned;
2175 buffer += aligned;
2176 }
2177 }
2178
2179 return ERROR_OK;
2180 }
2181
2182 int target_checksum_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t* crc)
2183 {
2184 uint8_t *buffer;
2185 int retval;
2186 uint32_t i;
2187 uint32_t checksum = 0;
2188 if (!target_was_examined(target)) {
2189 LOG_ERROR("Target not examined yet");
2190 return ERROR_FAIL;
2191 }
2192
2193 retval = target->type->checksum_memory(target, address, size, &checksum);
2194 if (retval != ERROR_OK) {
2195 buffer = malloc(size);
2196 if (buffer == NULL) {
2197 LOG_ERROR("error allocating buffer for section (%" PRId32 " bytes)", size);
2198 return ERROR_COMMAND_SYNTAX_ERROR;
2199 }
2200 retval = target_read_buffer(target, address, size, buffer);
2201 if (retval != ERROR_OK) {
2202 free(buffer);
2203 return retval;
2204 }
2205
2206 /* convert to target endianness */
2207 for (i = 0; i < (size/sizeof(uint32_t)); i++) {
2208 uint32_t target_data;
2209 target_data = target_buffer_get_u32(target, &buffer[i*sizeof(uint32_t)]);
2210 target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
2211 }
2212
2213 retval = image_calculate_checksum(buffer, size, &checksum);
2214 free(buffer);
2215 }
2216
2217 *crc = checksum;
2218
2219 return retval;
2220 }
2221
2222 int target_blank_check_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t* blank,
2223 uint8_t erased_value)
2224 {
2225 int retval;
2226 if (!target_was_examined(target)) {
2227 LOG_ERROR("Target not examined yet");
2228 return ERROR_FAIL;
2229 }
2230
2231 if (target->type->blank_check_memory == 0)
2232 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
2233
2234 retval = target->type->blank_check_memory(target, address, size, blank, erased_value);
2235
2236 return retval;
2237 }
2238
2239 int target_read_u64(struct target *target, target_addr_t address, uint64_t *value)
2240 {
2241 uint8_t value_buf[8];
2242 if (!target_was_examined(target)) {
2243 LOG_ERROR("Target not examined yet");
2244 return ERROR_FAIL;
2245 }
2246
2247 int retval = target_read_memory(target, address, 8, 1, value_buf);
2248
2249 if (retval == ERROR_OK) {
2250 *value = target_buffer_get_u64(target, value_buf);
2251 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2252 address,
2253 *value);
2254 } else {
2255 *value = 0x0;
2256 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2257 address);
2258 }
2259
2260 return retval;
2261 }
2262
2263 int target_read_u32(struct target *target, target_addr_t address, uint32_t *value)
2264 {
2265 uint8_t value_buf[4];
2266 if (!target_was_examined(target)) {
2267 LOG_ERROR("Target not examined yet");
2268 return ERROR_FAIL;
2269 }
2270
2271 int retval = target_read_memory(target, address, 4, 1, value_buf);
2272
2273 if (retval == ERROR_OK) {
2274 *value = target_buffer_get_u32(target, value_buf);
2275 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2276 address,
2277 *value);
2278 } else {
2279 *value = 0x0;
2280 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2281 address);
2282 }
2283
2284 return retval;
2285 }
2286
2287 int target_read_u16(struct target *target, target_addr_t address, uint16_t *value)
2288 {
2289 uint8_t value_buf[2];
2290 if (!target_was_examined(target)) {
2291 LOG_ERROR("Target not examined yet");
2292 return ERROR_FAIL;
2293 }
2294
2295 int retval = target_read_memory(target, address, 2, 1, value_buf);
2296
2297 if (retval == ERROR_OK) {
2298 *value = target_buffer_get_u16(target, value_buf);
2299 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%4.4" PRIx16,
2300 address,
2301 *value);
2302 } else {
2303 *value = 0x0;
2304 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2305 address);
2306 }
2307
2308 return retval;
2309 }
2310
2311 int target_read_u8(struct target *target, target_addr_t address, uint8_t *value)
2312 {
2313 if (!target_was_examined(target)) {
2314 LOG_ERROR("Target not examined yet");
2315 return ERROR_FAIL;
2316 }
2317
2318 int retval = target_read_memory(target, address, 1, 1, value);
2319
2320 if (retval == ERROR_OK) {
2321 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2322 address,
2323 *value);
2324 } else {
2325 *value = 0x0;
2326 LOG_DEBUG("address: " TARGET_ADDR_FMT " failed",
2327 address);
2328 }
2329
2330 return retval;
2331 }
2332
2333 int target_write_u64(struct target *target, target_addr_t address, uint64_t value)
2334 {
2335 int retval;
2336 uint8_t value_buf[8];
2337 if (!target_was_examined(target)) {
2338 LOG_ERROR("Target not examined yet");
2339 return ERROR_FAIL;
2340 }
2341
2342 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2343 address,
2344 value);
2345
2346 target_buffer_set_u64(target, value_buf, value);
2347 retval = target_write_memory(target, address, 8, 1, value_buf);
2348 if (retval != ERROR_OK)
2349 LOG_DEBUG("failed: %i", retval);
2350
2351 return retval;
2352 }
2353
2354 int target_write_u32(struct target *target, target_addr_t address, uint32_t value)
2355 {
2356 int retval;
2357 uint8_t value_buf[4];
2358 if (!target_was_examined(target)) {
2359 LOG_ERROR("Target not examined yet");
2360 return ERROR_FAIL;
2361 }
2362
2363 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2364 address,
2365 value);
2366
2367 target_buffer_set_u32(target, value_buf, value);
2368 retval = target_write_memory(target, address, 4, 1, value_buf);
2369 if (retval != ERROR_OK)
2370 LOG_DEBUG("failed: %i", retval);
2371
2372 return retval;
2373 }
2374
2375 int target_write_u16(struct target *target, target_addr_t address, uint16_t value)
2376 {
2377 int retval;
2378 uint8_t value_buf[2];
2379 if (!target_was_examined(target)) {
2380 LOG_ERROR("Target not examined yet");
2381 return ERROR_FAIL;
2382 }
2383
2384 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2385 address,
2386 value);
2387
2388 target_buffer_set_u16(target, value_buf, value);
2389 retval = target_write_memory(target, address, 2, 1, value_buf);
2390 if (retval != ERROR_OK)
2391 LOG_DEBUG("failed: %i", retval);
2392
2393 return retval;
2394 }
2395
2396 int target_write_u8(struct target *target, target_addr_t address, uint8_t value)
2397 {
2398 int retval;
2399 if (!target_was_examined(target)) {
2400 LOG_ERROR("Target not examined yet");
2401 return ERROR_FAIL;
2402 }
2403
2404 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2405 address, value);
2406
2407 retval = target_write_memory(target, address, 1, 1, &value);
2408 if (retval != ERROR_OK)
2409 LOG_DEBUG("failed: %i", retval);
2410
2411 return retval;
2412 }
2413
2414 int target_write_phys_u64(struct target *target, target_addr_t address, uint64_t value)
2415 {
2416 int retval;
2417 uint8_t value_buf[8];
2418 if (!target_was_examined(target)) {
2419 LOG_ERROR("Target not examined yet");
2420 return ERROR_FAIL;
2421 }
2422
2423 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%16.16" PRIx64 "",
2424 address,
2425 value);
2426
2427 target_buffer_set_u64(target, value_buf, value);
2428 retval = target_write_phys_memory(target, address, 8, 1, value_buf);
2429 if (retval != ERROR_OK)
2430 LOG_DEBUG("failed: %i", retval);
2431
2432 return retval;
2433 }
2434
2435 int target_write_phys_u32(struct target *target, target_addr_t address, uint32_t value)
2436 {
2437 int retval;
2438 uint8_t value_buf[4];
2439 if (!target_was_examined(target)) {
2440 LOG_ERROR("Target not examined yet");
2441 return ERROR_FAIL;
2442 }
2443
2444 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx32 "",
2445 address,
2446 value);
2447
2448 target_buffer_set_u32(target, value_buf, value);
2449 retval = target_write_phys_memory(target, address, 4, 1, value_buf);
2450 if (retval != ERROR_OK)
2451 LOG_DEBUG("failed: %i", retval);
2452
2453 return retval;
2454 }
2455
2456 int target_write_phys_u16(struct target *target, target_addr_t address, uint16_t value)
2457 {
2458 int retval;
2459 uint8_t value_buf[2];
2460 if (!target_was_examined(target)) {
2461 LOG_ERROR("Target not examined yet");
2462 return ERROR_FAIL;
2463 }
2464
2465 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%8.8" PRIx16,
2466 address,
2467 value);
2468
2469 target_buffer_set_u16(target, value_buf, value);
2470 retval = target_write_phys_memory(target, address, 2, 1, value_buf);
2471 if (retval != ERROR_OK)
2472 LOG_DEBUG("failed: %i", retval);
2473
2474 return retval;
2475 }
2476
2477 int target_write_phys_u8(struct target *target, target_addr_t address, uint8_t value)
2478 {
2479 int retval;
2480 if (!target_was_examined(target)) {
2481 LOG_ERROR("Target not examined yet");
2482 return ERROR_FAIL;
2483 }
2484
2485 LOG_DEBUG("address: " TARGET_ADDR_FMT ", value: 0x%2.2" PRIx8,
2486 address, value);
2487
2488 retval = target_write_phys_memory(target, address, 1, 1, &value);
2489 if (retval != ERROR_OK)
2490 LOG_DEBUG("failed: %i", retval);
2491
2492 return retval;
2493 }
2494
2495 static int find_target(struct command_context *cmd_ctx, const char *name)
2496 {
2497 struct target *target = get_target(name);
2498 if (target == NULL) {
2499 LOG_ERROR("Target: %s is unknown, try one of:\n", name);
2500 return ERROR_FAIL;
2501 }
2502 if (!target->tap->enabled) {
2503 LOG_USER("Target: TAP %s is disabled, "
2504 "can't be the current target\n",
2505 target->tap->dotted_name);
2506 return ERROR_FAIL;
2507 }
2508
2509 cmd_ctx->current_target = target->target_number;
2510 return ERROR_OK;
2511 }
2512
2513
2514 COMMAND_HANDLER(handle_targets_command)
2515 {
2516 int retval = ERROR_OK;
2517 if (CMD_ARGC == 1) {
2518 retval = find_target(CMD_CTX, CMD_ARGV[0]);
2519 if (retval == ERROR_OK) {
2520 /* we're done! */
2521 return retval;
2522 }
2523 }
2524
2525 struct target *target = all_targets;
2526 command_print(CMD_CTX, " TargetName Type Endian TapName State ");
2527 command_print(CMD_CTX, "-- ------------------ ---------- ------ ------------------ ------------");
2528 while (target) {
2529 const char *state;
2530 char marker = ' ';
2531
2532 if (target->tap->enabled)
2533 state = target_state_name(target);
2534 else
2535 state = "tap-disabled";
2536
2537 if (CMD_CTX->current_target == target->target_number)
2538 marker = '*';
2539
2540 /* keep columns lined up to match the headers above */
2541 command_print(CMD_CTX,
2542 "%2d%c %-18s %-10s %-6s %-18s %s",
2543 target->target_number,
2544 marker,
2545 target_name(target),
2546 target_type_name(target),
2547 Jim_Nvp_value2name_simple(nvp_target_endian,
2548 target->endianness)->name,
2549 target->tap->dotted_name,
2550 state);
2551 target = target->next;
2552 }
2553
2554 return retval;
2555 }
2556
2557 /* every 300ms we check for reset & powerdropout and issue a "reset halt" if so. */
2558
2559 static int powerDropout;
2560 static int srstAsserted;
2561
2562 static int runPowerRestore;
2563 static int runPowerDropout;
2564 static int runSrstAsserted;
2565 static int runSrstDeasserted;
2566
2567 static int sense_handler(void)
2568 {
2569 static int prevSrstAsserted;
2570 static int prevPowerdropout;
2571
2572 int retval = jtag_power_dropout(&powerDropout);
2573 if (retval != ERROR_OK)
2574 return retval;
2575
2576 int powerRestored;
2577 powerRestored = prevPowerdropout && !powerDropout;
2578 if (powerRestored)
2579 runPowerRestore = 1;
2580
2581 int64_t current = timeval_ms();
2582 static int64_t lastPower;
2583 bool waitMore = lastPower + 2000 > current;
2584 if (powerDropout && !waitMore) {
2585 runPowerDropout = 1;
2586 lastPower = current;
2587 }
2588
2589 retval = jtag_srst_asserted(&srstAsserted);
2590 if (retval != ERROR_OK)
2591 return retval;
2592
2593 int srstDeasserted;
2594 srstDeasserted = prevSrstAsserted && !srstAsserted;
2595
2596 static int64_t lastSrst;
2597 waitMore = lastSrst + 2000 > current;
2598 if (srstDeasserted && !waitMore) {
2599 runSrstDeasserted = 1;
2600 lastSrst = current;
2601 }
2602
2603 if (!prevSrstAsserted && srstAsserted)
2604 runSrstAsserted = 1;
2605
2606 prevSrstAsserted = srstAsserted;
2607 prevPowerdropout = powerDropout;
2608
2609 if (srstDeasserted || powerRestored) {
2610 /* Other than logging the event we can't do anything here.
2611 * Issuing a reset is a particularly bad idea as we might
2612 * be inside a reset already.
2613 */
2614 }
2615
2616 return ERROR_OK;
2617 }
2618
2619 /* process target state changes */
2620 static int handle_target(void *priv)
2621 {
2622 Jim_Interp *interp = (Jim_Interp *)priv;
2623 int retval = ERROR_OK;
2624
2625 if (!is_jtag_poll_safe()) {
2626 /* polling is disabled currently */
2627 return ERROR_OK;
2628 }
2629
2630 /* we do not want to recurse here... */
2631 static int recursive;
2632 if (!recursive) {
2633 recursive = 1;
2634 sense_handler();
2635 /* danger! running these procedures can trigger srst assertions and power dropouts.
2636 * We need to avoid an infinite loop/recursion here and we do that by
2637 * clearing the flags after running these events.
2638 */
2639 int did_something = 0;
2640 if (runSrstAsserted) {
2641 LOG_INFO("srst asserted detected, running srst_asserted proc.");
2642 Jim_Eval(interp, "srst_asserted");
2643 did_something = 1;
2644 }
2645 if (runSrstDeasserted) {
2646 Jim_Eval(interp, "srst_deasserted");
2647 did_something = 1;
2648 }
2649 if (runPowerDropout) {
2650 LOG_INFO("Power dropout detected, running power_dropout proc.");
2651 Jim_Eval(interp, "power_dropout");
2652 did_something = 1;
2653 }
2654 if (runPowerRestore) {
2655 Jim_Eval(interp, "power_restore");
2656 did_something = 1;
2657 }
2658
2659 if (did_something) {
2660 /* clear detect flags */
2661 sense_handler();
2662 }
2663
2664 /* clear action flags */
2665
2666 runSrstAsserted = 0;
2667 runSrstDeasserted = 0;
2668 runPowerRestore = 0;
2669 runPowerDropout = 0;
2670
2671 recursive = 0;
2672 }
2673
2674 /* Poll targets for state changes unless that's globally disabled.
2675 * Skip targets that are currently disabled.
2676 */
2677 for (struct target *target = all_targets;
2678 is_jtag_poll_safe() && target;
2679 target = target->next) {
2680
2681 if (!target_was_examined(target))
2682 continue;
2683
2684 if (!target->tap->enabled)
2685 continue;
2686
2687 if (target->backoff.times > target->backoff.count) {
2688 /* do not poll this time as we failed previously */
2689 target->backoff.count++;
2690 continue;
2691 }
2692 target->backoff.count = 0;
2693
2694 /* only poll target if we've got power and srst isn't asserted */
2695 if (!powerDropout && !srstAsserted) {
2696 /* polling may fail silently until the target has been examined */
2697 retval = target_poll(target);
2698 if (retval != ERROR_OK) {
2699 /* 100ms polling interval. Increase interval between polling up to 5000ms */
2700 if (target->backoff.times * polling_interval < 5000) {
2701 target->backoff.times *= 2;
2702 target->backoff.times++;
2703 }
2704
2705 /* Tell GDB to halt the debugger. This allows the user to
2706 * run monitor commands to handle the situation.
2707 */
2708 target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
2709 }
2710 if (target->backoff.times > 0) {
2711 LOG_USER("Polling target %s failed, trying to reexamine", target_name(target));
2712 target_reset_examined(target);
2713 retval = target_examine_one(target);
2714 /* Target examination could have failed due to unstable connection,
2715 * but we set the examined flag anyway to repoll it later */
2716 if (retval != ERROR_OK) {
2717 target->examined = true;
2718 LOG_USER("Examination failed, GDB will be halted. Polling again in %dms",
2719 target->backoff.times * polling_interval);
2720 return retval;
2721 }
2722 }
2723
2724 /* Since we succeeded, we reset backoff count */
2725 target->backoff.times = 0;
2726 }
2727 }
2728
2729 return retval;
2730 }
2731
2732 COMMAND_HANDLER(handle_reg_command)
2733 {
2734 struct target *target;
2735 struct reg *reg = NULL;
2736 unsigned count = 0;
2737 char *value;
2738
2739 LOG_DEBUG("-");
2740
2741 target = get_current_target(CMD_CTX);
2742
2743 /* list all available registers for the current target */
2744 if (CMD_ARGC == 0) {
2745 struct reg_cache *cache = target->reg_cache;
2746
2747 count = 0;
2748 while (cache) {
2749 unsigned i;
2750
2751 command_print(CMD_CTX, "===== %s", cache->name);
2752
2753 for (i = 0, reg = cache->reg_list;
2754 i < cache->num_regs;
2755 i++, reg++, count++) {
2756 /* only print cached values if they are valid */
2757 if (reg->valid) {
2758 value = buf_to_str(reg->value,
2759 reg->size, 16);
2760 command_print(CMD_CTX,
2761 "(%i) %s (/%" PRIu32 "): 0x%s%s",
2762 count, reg->name,
2763 reg->size, value,
2764 reg->dirty
2765 ? " (dirty)"
2766 : "");
2767 free(value);
2768 } else {
2769 command_print(CMD_CTX, "(%i) %s (/%" PRIu32 ")",
2770 count, reg->name,
2771 reg->size) ;
2772 }
2773 }
2774 cache = cache->next;
2775 }
2776
2777 return ERROR_OK;
2778 }
2779
2780 /* access a single register by its ordinal number */
2781 if ((CMD_ARGV[0][0] >= '0') && (CMD_ARGV[0][0] <= '9')) {
2782 unsigned num;
2783 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], num);
2784
2785 struct reg_cache *cache = target->reg_cache;
2786 count = 0;
2787 while (cache) {
2788 unsigned i;
2789 for (i = 0; i < cache->num_regs; i++) {
2790 if (count++ == num) {
2791 reg = &cache->reg_list[i];
2792 break;
2793 }
2794 }
2795 if (reg)
2796 break;
2797 cache = cache->next;
2798 }
2799
2800 if (!reg) {
2801 command_print(CMD_CTX, "%i is out of bounds, the current target "
2802 "has only %i registers (0 - %i)", num, count, count - 1);
2803 return ERROR_OK;
2804 }
2805 } else {
2806 /* access a single register by its name */
2807 reg = register_get_by_name(target->reg_cache, CMD_ARGV[0], 1);
2808
2809 if (!reg) {
2810 command_print(CMD_CTX, "register %s not found in current target", CMD_ARGV[0]);
2811 return ERROR_OK;
2812 }
2813 }
2814
2815 assert(reg != NULL); /* give clang a hint that we *know* reg is != NULL here */
2816
2817 /* display a register */
2818 if ((CMD_ARGC == 1) || ((CMD_ARGC == 2) && !((CMD_ARGV[1][0] >= '0')
2819 && (CMD_ARGV[1][0] <= '9')))) {
2820 if ((CMD_ARGC == 2) && (strcmp(CMD_ARGV[1], "force") == 0))
2821 reg->valid = 0;
2822
2823 if (reg->valid == 0)
2824 reg->type->get(reg);
2825 value = buf_to_str(reg->value, reg->size, 16);
2826 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2827 free(value);
2828 return ERROR_OK;
2829 }
2830
2831 /* set register value */
2832 if (CMD_ARGC == 2) {
2833 uint8_t *buf = malloc(DIV_ROUND_UP(reg->size, 8));
2834 if (buf == NULL)
2835 return ERROR_FAIL;
2836 str_to_buf(CMD_ARGV[1], strlen(CMD_ARGV[1]), buf, reg->size, 0);
2837
2838 reg->type->set(reg, buf);
2839
2840 value = buf_to_str(reg->value, reg->size, 16);
2841 command_print(CMD_CTX, "%s (/%i): 0x%s", reg->name, (int)(reg->size), value);
2842 free(value);
2843
2844 free(buf);
2845
2846 return ERROR_OK;
2847 }
2848
2849 return ERROR_COMMAND_SYNTAX_ERROR;
2850 }
2851
2852 COMMAND_HANDLER(handle_poll_command)
2853 {
2854 int retval = ERROR_OK;
2855 struct target *target = get_current_target(CMD_CTX);
2856
2857 if (CMD_ARGC == 0) {
2858 command_print(CMD_CTX, "background polling: %s",
2859 jtag_poll_get_enabled() ? "on" : "off");
2860 command_print(CMD_CTX, "TAP: %s (%s)",
2861 target->tap->dotted_name,
2862 target->tap->enabled ? "enabled" : "disabled");
2863 if (!target->tap->enabled)
2864 return ERROR_OK;
2865 retval = target_poll(target);
2866 if (retval != ERROR_OK)
2867 return retval;
2868 retval = target_arch_state(target);
2869 if (retval != ERROR_OK)
2870 return retval;
2871 } else if (CMD_ARGC == 1) {
2872 bool enable;
2873 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
2874 jtag_poll_set_enabled(enable);
2875 } else
2876 return ERROR_COMMAND_SYNTAX_ERROR;
2877
2878 return retval;
2879 }
2880
2881 COMMAND_HANDLER(handle_wait_halt_command)
2882 {
2883 if (CMD_ARGC > 1)
2884 return ERROR_COMMAND_SYNTAX_ERROR;
2885
2886 unsigned ms = DEFAULT_HALT_TIMEOUT;
2887 if (1 == CMD_ARGC) {
2888 int retval = parse_uint(CMD_ARGV[0], &ms);
2889 if (ERROR_OK != retval)
2890 return ERROR_COMMAND_SYNTAX_ERROR;
2891 }
2892
2893 struct target *target = get_current_target(CMD_CTX);
2894 return target_wait_state(target, TARGET_HALTED, ms);
2895 }
2896
2897 /* wait for target state to change. The trick here is to have a low
2898 * latency for short waits and not to suck up all the CPU time
2899 * on longer waits.
2900 *
2901 * After 500ms, keep_alive() is invoked
2902 */
2903 int target_wait_state(struct target *target, enum target_state state, int ms)
2904 {
2905 int retval;
2906 int64_t then = 0, cur;
2907 bool once = true;
2908
2909 for (;;) {
2910 retval = target_poll(target);
2911 if (retval != ERROR_OK)
2912 return retval;
2913 if (target->state == state)
2914 break;
2915 cur = timeval_ms();
2916 if (once) {
2917 once = false;
2918 then = timeval_ms();
2919 LOG_DEBUG("waiting for target %s...",
2920 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2921 }
2922
2923 if (cur-then > 500)
2924 keep_alive();
2925
2926 if ((cur-then) > ms) {
2927 LOG_ERROR("timed out while waiting for target %s",
2928 Jim_Nvp_value2name_simple(nvp_target_state, state)->name);
2929 return ERROR_FAIL;
2930 }
2931 }
2932
2933 return ERROR_OK;
2934 }
2935
2936 COMMAND_HANDLER(handle_halt_command)
2937 {
2938 LOG_DEBUG("-");
2939
2940 struct target *target = get_current_target(CMD_CTX);
2941 int retval = target_halt(target);
2942 if (ERROR_OK != retval)
2943 return retval;
2944
2945 if (CMD_ARGC == 1) {
2946 unsigned wait_local;
2947 retval = parse_uint(CMD_ARGV[0], &wait_local);
2948 if (ERROR_OK != retval)
2949 return ERROR_COMMAND_SYNTAX_ERROR;
2950 if (!wait_local)
2951 return ERROR_OK;
2952 }
2953
2954 return CALL_COMMAND_HANDLER(handle_wait_halt_command);
2955 }
2956
2957 COMMAND_HANDLER(handle_soft_reset_halt_command)
2958 {
2959 struct target *target = get_current_target(CMD_CTX);
2960
2961 LOG_USER("requesting target halt and executing a soft reset");
2962
2963 target_soft_reset_halt(target);
2964
2965 return ERROR_OK;
2966 }
2967
2968 COMMAND_HANDLER(handle_reset_command)
2969 {
2970 if (CMD_ARGC > 1)
2971 return ERROR_COMMAND_SYNTAX_ERROR;
2972
2973 enum target_reset_mode reset_mode = RESET_RUN;
2974 if (CMD_ARGC == 1) {
2975 const Jim_Nvp *n;
2976 n = Jim_Nvp_name2value_simple(nvp_reset_modes, CMD_ARGV[0]);
2977 if ((n->name == NULL) || (n->value == RESET_UNKNOWN))
2978 return ERROR_COMMAND_SYNTAX_ERROR;
2979 reset_mode = n->value;
2980 }
2981
2982 /* reset *all* targets */
2983 return target_process_reset(CMD_CTX, reset_mode);
2984 }
2985
2986
2987 COMMAND_HANDLER(handle_resume_command)
2988 {
2989 int current = 1;
2990 if (CMD_ARGC > 1)
2991 return ERROR_COMMAND_SYNTAX_ERROR;
2992
2993 struct target *target = get_current_target(CMD_CTX);
2994
2995 /* with no CMD_ARGV, resume from current pc, addr = 0,
2996 * with one arguments, addr = CMD_ARGV[0],
2997 * handle breakpoints, not debugging */
2998 target_addr_t addr = 0;
2999 if (CMD_ARGC == 1) {
3000 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3001 current = 0;
3002 }
3003
3004 return target_resume(target, current, addr, 1, 0);
3005 }
3006
3007 COMMAND_HANDLER(handle_step_command)
3008 {
3009 if (CMD_ARGC > 1)
3010 return ERROR_COMMAND_SYNTAX_ERROR;
3011
3012 LOG_DEBUG("-");
3013
3014 /* with no CMD_ARGV, step from current pc, addr = 0,
3015 * with one argument addr = CMD_ARGV[0],
3016 * handle breakpoints, debugging */
3017 target_addr_t addr = 0;
3018 int current_pc = 1;
3019 if (CMD_ARGC == 1) {
3020 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], addr);
3021 current_pc = 0;
3022 }
3023
3024 struct target *target = get_current_target(CMD_CTX);
3025
3026 return target->type->step(target, current_pc, addr, 1);
3027 }
3028
3029 static void handle_md_output(struct command_context *cmd_ctx,
3030 struct target *target, target_addr_t address, unsigned size,
3031 unsigned count, const uint8_t *buffer)
3032 {
3033 const unsigned line_bytecnt = 32;
3034 unsigned line_modulo = line_bytecnt / size;
3035
3036 char output[line_bytecnt * 4 + 1];
3037 unsigned output_len = 0;
3038
3039 const char *value_fmt;
3040 switch (size) {
3041 case 8:
3042 value_fmt = "%16.16"PRIx64" ";
3043 break;
3044 case 4:
3045 value_fmt = "%8.8"PRIx64" ";
3046 break;
3047 case 2:
3048 value_fmt = "%4.4"PRIx64" ";
3049 break;
3050 case 1:
3051 value_fmt = "%2.2"PRIx64" ";
3052 break;
3053 default:
3054 /* "can't happen", caller checked */
3055 LOG_ERROR("invalid memory read size: %u", size);
3056 return;
3057 }
3058
3059 for (unsigned i = 0; i < count; i++) {
3060 if (i % line_modulo == 0) {
3061 output_len += snprintf(output + output_len,
3062 sizeof(output) - output_len,
3063 TARGET_ADDR_FMT ": ",
3064 (address + (i * size)));
3065 }
3066
3067 uint64_t value = 0;
3068 const uint8_t *value_ptr = buffer + i * size;
3069 switch (size) {
3070 case 8:
3071 value = target_buffer_get_u64(target, value_ptr);
3072 break;
3073 case 4:
3074 value = target_buffer_get_u32(target, value_ptr);
3075 break;
3076 case 2:
3077 value = target_buffer_get_u16(target, value_ptr);
3078 break;
3079 case 1:
3080 value = *value_ptr;
3081 }
3082 output_len += snprintf(output + output_len,
3083 sizeof(output) - output_len,
3084 value_fmt, value);
3085
3086 if ((i % line_modulo == line_modulo - 1) || (i == count - 1)) {
3087 command_print(cmd_ctx, "%s", output);
3088 output_len = 0;
3089 }
3090 }
3091 }
3092
3093 COMMAND_HANDLER(handle_md_command)
3094 {
3095 if (CMD_ARGC < 1)
3096 return ERROR_COMMAND_SYNTAX_ERROR;
3097
3098 unsigned size = 0;
3099 switch (CMD_NAME[2]) {
3100 case 'd':
3101 size = 8;
3102 break;
3103 case 'w':
3104 size = 4;
3105 break;
3106 case 'h':
3107 size = 2;
3108 break;
3109 case 'b':
3110 size = 1;
3111 break;
3112 default:
3113 return ERROR_COMMAND_SYNTAX_ERROR;
3114 }
3115
3116 bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3117 int (*fn)(struct target *target,
3118 target_addr_t address, uint32_t size_value, uint32_t count, uint8_t *buffer);
3119 if (physical) {
3120 CMD_ARGC--;
3121 CMD_ARGV++;
3122 fn = target_read_phys_memory;
3123 } else
3124 fn = target_read_memory;
3125 if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
3126 return ERROR_COMMAND_SYNTAX_ERROR;
3127
3128 target_addr_t address;
3129 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3130
3131 unsigned count = 1;
3132 if (CMD_ARGC == 2)
3133 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], count);
3134
3135 uint8_t *buffer = calloc(count, size);
3136 if (buffer == NULL) {
3137 LOG_ERROR("Failed to allocate md read buffer");
3138 return ERROR_FAIL;
3139 }
3140
3141 struct target *target = get_current_target(CMD_CTX);
3142 int retval = fn(target, address, size, count, buffer);
3143 if (ERROR_OK == retval)
3144 handle_md_output(CMD_CTX, target, address, size, count, buffer);
3145
3146 free(buffer);
3147
3148 return retval;
3149 }
3150
3151 typedef int (*target_write_fn)(struct target *target,
3152 target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
3153
3154 static int target_fill_mem(struct target *target,
3155 target_addr_t address,
3156 target_write_fn fn,
3157 unsigned data_size,
3158 /* value */
3159 uint64_t b,
3160 /* count */
3161 unsigned c)
3162 {
3163 /* We have to write in reasonably large chunks to be able
3164 * to fill large memory areas with any sane speed */
3165 const unsigned chunk_size = 16384;
3166 uint8_t *target_buf = malloc(chunk_size * data_size);
3167 if (target_buf == NULL) {
3168 LOG_ERROR("Out of memory");
3169 return ERROR_FAIL;
3170 }
3171
3172 for (unsigned i = 0; i < chunk_size; i++) {
3173 switch (data_size) {
3174 case 8:
3175 target_buffer_set_u64(target, target_buf + i * data_size, b);
3176 break;
3177 case 4:
3178 target_buffer_set_u32(target, target_buf + i * data_size, b);
3179 break;
3180 case 2:
3181 target_buffer_set_u16(target, target_buf + i * data_size, b);
3182 break;
3183 case 1:
3184 target_buffer_set_u8(target, target_buf + i * data_size, b);
3185 break;
3186 default:
3187 exit(-1);
3188 }
3189 }
3190
3191 int retval = ERROR_OK;
3192
3193 for (unsigned x = 0; x < c; x += chunk_size) {
3194 unsigned current;
3195 current = c - x;
3196 if (current > chunk_size)
3197 current = chunk_size;
3198 retval = fn(target, address + x * data_size, data_size, current, target_buf);
3199 if (retval != ERROR_OK)
3200 break;
3201 /* avoid GDB timeouts */
3202 keep_alive();
3203 }
3204 free(target_buf);
3205
3206 return retval;
3207 }
3208
3209
3210 COMMAND_HANDLER(handle_mw_command)
3211 {
3212 if (CMD_ARGC < 2)
3213 return ERROR_COMMAND_SYNTAX_ERROR;
3214 bool physical = strcmp(CMD_ARGV[0], "phys") == 0;
3215 target_write_fn fn;
3216 if (physical) {
3217 CMD_ARGC--;
3218 CMD_ARGV++;
3219 fn = target_write_phys_memory;
3220 } else
3221 fn = target_write_memory;
3222 if ((CMD_ARGC < 2) || (CMD_ARGC > 3))
3223 return ERROR_COMMAND_SYNTAX_ERROR;
3224
3225 target_addr_t address;
3226 COMMAND_PARSE_ADDRESS(CMD_ARGV[0], address);
3227
3228 target_addr_t value;
3229 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], value);
3230
3231 unsigned count = 1;
3232 if (CMD_ARGC == 3)
3233 COMMAND_PARSE_NUMBER(uint, CMD_ARGV[2], count);
3234
3235 struct target *target = get_current_target(CMD_CTX);
3236 unsigned wordsize;
3237 switch (CMD_NAME[2]) {
3238 case 'd':
3239 wordsize = 8;
3240 break;
3241 case 'w':
3242 wordsize = 4;
3243 break;
3244 case 'h':
3245 wordsize = 2;
3246 break;
3247 case 'b':
3248 wordsize = 1;
3249 break;
3250 default:
3251 return ERROR_COMMAND_SYNTAX_ERROR;
3252 }
3253
3254 return target_fill_mem(target, address, fn, wordsize, value, count);
3255 }
3256
3257 static COMMAND_HELPER(parse_load_image_command_CMD_ARGV, struct image *image,
3258 target_addr_t *min_address, target_addr_t *max_address)
3259 {
3260 if (CMD_ARGC < 1 || CMD_ARGC > 5)
3261 return ERROR_COMMAND_SYNTAX_ERROR;
3262
3263 /* a base address isn't always necessary,
3264 * default to 0x0 (i.e. don't relocate) */
3265 if (CMD_ARGC >= 2) {
3266 target_addr_t addr;
3267 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3268 image->base_address = addr;
3269 image->base_address_set = 1;
3270 } else
3271 image->base_address_set = 0;
3272
3273 image->start_address_set = 0;
3274
3275 if (CMD_ARGC >= 4)
3276 COMMAND_PARSE_ADDRESS(CMD_ARGV[3], *min_address);
3277 if (CMD_ARGC == 5) {
3278 COMMAND_PARSE_ADDRESS(CMD_ARGV[4], *max_address);
3279 /* use size (given) to find max (required) */
3280 *max_address += *min_address;
3281 }
3282
3283 if (*min_address > *max_address)
3284 return ERROR_COMMAND_SYNTAX_ERROR;
3285
3286 return ERROR_OK;
3287 }
3288
3289 COMMAND_HANDLER(handle_load_image_command)
3290 {
3291 uint8_t *buffer;
3292 size_t buf_cnt;
3293 uint32_t image_size;
3294 target_addr_t min_address = 0;
3295 target_addr_t max_address = -1;
3296 int i;
3297 struct image image;
3298
3299 int retval = CALL_COMMAND_HANDLER(parse_load_image_command_CMD_ARGV,
3300 &image, &min_address, &max_address);
3301 if (ERROR_OK != retval)
3302 return retval;
3303
3304 struct target *target = get_current_target(CMD_CTX);
3305
3306 struct duration bench;
3307 duration_start(&bench);
3308
3309 if (image_open(&image, CMD_ARGV[0], (CMD_ARGC >= 3) ? CMD_ARGV[2] : NULL) != ERROR_OK)
3310 return ERROR_FAIL;
3311
3312 image_size = 0x0;
3313 retval = ERROR_OK;
3314 for (i = 0; i < image.num_sections; i++) {
3315 buffer = malloc(image.sections[i].size);
3316 if (buffer == NULL) {
3317 command_print(CMD_CTX,
3318 "error allocating buffer for section (%d bytes)",
3319 (int)(image.sections[i].size));
3320 retval = ERROR_FAIL;
3321 break;
3322 }
3323
3324 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3325 if (retval != ERROR_OK) {
3326 free(buffer);
3327 break;
3328 }
3329
3330 uint32_t offset = 0;
3331 uint32_t length = buf_cnt;
3332
3333 /* DANGER!!! beware of unsigned comparision here!!! */
3334
3335 if ((image.sections[i].base_address + buf_cnt >= min_address) &&
3336 (image.sections[i].base_address < max_address)) {
3337
3338 if (image.sections[i].base_address < min_address) {
3339 /* clip addresses below */
3340 offset += min_address-image.sections[i].base_address;
3341 length -= offset;
3342 }
3343
3344 if (image.sections[i].base_address + buf_cnt > max_address)
3345 length -= (image.sections[i].base_address + buf_cnt)-max_address;
3346
3347 retval = target_write_buffer(target,
3348 image.sections[i].base_address + offset, length, buffer + offset);
3349 if (retval != ERROR_OK) {
3350 free(buffer);
3351 break;
3352 }
3353 image_size += length;
3354 command_print(CMD_CTX, "%u bytes written at address " TARGET_ADDR_FMT "",
3355 (unsigned int)length,
3356 image.sections[i].base_address + offset);
3357 }
3358
3359 free(buffer);
3360 }
3361
3362 if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3363 command_print(CMD_CTX, "downloaded %" PRIu32 " bytes "
3364 "in %fs (%0.3f KiB/s)", image_size,
3365 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3366 }
3367
3368 image_close(&image);
3369
3370 return retval;
3371
3372 }
3373
3374 COMMAND_HANDLER(handle_dump_image_command)
3375 {
3376 struct fileio *fileio;
3377 uint8_t *buffer;
3378 int retval, retvaltemp;
3379 target_addr_t address, size;
3380 struct duration bench;
3381 struct target *target = get_current_target(CMD_CTX);
3382
3383 if (CMD_ARGC != 3)
3384 return ERROR_COMMAND_SYNTAX_ERROR;
3385
3386 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], address);
3387 COMMAND_PARSE_ADDRESS(CMD_ARGV[2], size);
3388
3389 uint32_t buf_size = (size > 4096) ? 4096 : size;
3390 buffer = malloc(buf_size);
3391 if (!buffer)
3392 return ERROR_FAIL;
3393
3394 retval = fileio_open(&fileio, CMD_ARGV[0], FILEIO_WRITE, FILEIO_BINARY);
3395 if (retval != ERROR_OK) {
3396 free(buffer);
3397 return retval;
3398 }
3399
3400 duration_start(&bench);
3401
3402 while (size > 0) {
3403 size_t size_written;
3404 uint32_t this_run_size = (size > buf_size) ? buf_size : size;
3405 retval = target_read_buffer(target, address, this_run_size, buffer);
3406 if (retval != ERROR_OK)
3407 break;
3408
3409 retval = fileio_write(fileio, this_run_size, buffer, &size_written);
3410 if (retval != ERROR_OK)
3411 break;
3412
3413 size -= this_run_size;
3414 address += this_run_size;
3415 }
3416
3417 free(buffer);
3418
3419 if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3420 size_t filesize;
3421 retval = fileio_size(fileio, &filesize);
3422 if (retval != ERROR_OK)
3423 return retval;
3424 command_print(CMD_CTX,
3425 "dumped %zu bytes in %fs (%0.3f KiB/s)", filesize,
3426 duration_elapsed(&bench), duration_kbps(&bench, filesize));
3427 }
3428
3429 retvaltemp = fileio_close(fileio);
3430 if (retvaltemp != ERROR_OK)
3431 return retvaltemp;
3432
3433 return retval;
3434 }
3435
3436 enum verify_mode {
3437 IMAGE_TEST = 0,
3438 IMAGE_VERIFY = 1,
3439 IMAGE_CHECKSUM_ONLY = 2
3440 };
3441
3442 static COMMAND_HELPER(handle_verify_image_command_internal, enum verify_mode verify)
3443 {
3444 uint8_t *buffer;
3445 size_t buf_cnt;
3446 uint32_t image_size;
3447 int i;
3448 int retval;
3449 uint32_t checksum = 0;
3450 uint32_t mem_checksum = 0;
3451
3452 struct image image;
3453
3454 struct target *target = get_current_target(CMD_CTX);
3455
3456 if (CMD_ARGC < 1)
3457 return ERROR_COMMAND_SYNTAX_ERROR;
3458
3459 if (!target) {
3460 LOG_ERROR("no target selected");
3461 return ERROR_FAIL;
3462 }
3463
3464 struct duration bench;
3465 duration_start(&bench);
3466
3467 if (CMD_ARGC >= 2) {
3468 target_addr_t addr;
3469 COMMAND_PARSE_ADDRESS(CMD_ARGV[1], addr);
3470 image.base_address = addr;
3471 image.base_address_set = 1;
3472 } else {
3473 image.base_address_set = 0;
3474 image.base_address = 0x0;
3475 }
3476
3477 image.start_address_set = 0;
3478
3479 retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
3480 if (retval != ERROR_OK)
3481 return retval;
3482
3483 image_size = 0x0;
3484 int diffs = 0;
3485 retval = ERROR_OK;
3486 for (i = 0; i < image.num_sections; i++) {
3487 buffer = malloc(image.sections[i].size);
3488 if (buffer == NULL) {
3489 command_print(CMD_CTX,
3490 "error allocating buffer for section (%d bytes)",
3491 (int)(image.sections[i].size));
3492 break;
3493 }
3494 retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt);
3495 if (retval != ERROR_OK) {
3496 free(buffer);
3497 break;
3498 }
3499
3500 if (verify >= IMAGE_VERIFY) {
3501 /* calculate checksum of image */
3502 retval = image_calculate_checksum(buffer, buf_cnt, &checksum);
3503 if (retval != ERROR_OK) {
3504 free(buffer);
3505 break;
3506 }
3507
3508 retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
3509 if (retval != ERROR_OK) {
3510 free(buffer);
3511 break;
3512 }
3513 if ((checksum != mem_checksum) && (verify == IMAGE_CHECKSUM_ONLY)) {
3514 LOG_ERROR("checksum mismatch");
3515 free(buffer);
3516 retval = ERROR_FAIL;
3517 goto done;
3518 }
3519 if (checksum != mem_checksum) {
3520 /* failed crc checksum, fall back to a binary compare */
3521 uint8_t *data;
3522
3523 if (diffs == 0)
3524 LOG_ERROR("checksum mismatch - attempting binary compare");
3525
3526 data = malloc(buf_cnt);
3527
3528 /* Can we use 32bit word accesses? */
3529 int size = 1;
3530 int count = buf_cnt;
3531 if ((count % 4) == 0) {
3532 size *= 4;
3533 count /= 4;
3534 }
3535 retval = target_read_memory(target, image.sections[i].base_address, size, count, data);
3536 if (retval == ERROR_OK) {
3537 uint32_t t;
3538 for (t = 0; t < buf_cnt; t++) {
3539 if (data[t] != buffer[t]) {
3540 command_print(CMD_CTX,
3541 "diff %d address 0x%08x. Was 0x%02x instead of 0x%02x",
3542 diffs,
3543 (unsigned)(t + image.sections[i].base_address),
3544 data[t],
3545 buffer[t]);
3546 if (diffs++ >= 127) {
3547 command_print(CMD_CTX, "More than 128 errors, the rest are not printed.");
3548 free(data);
3549 free(buffer);
3550 goto done;
3551 }
3552 }
3553 keep_alive();
3554 }
3555 }
3556 free(data);
3557 }
3558 } else {
3559 command_print(CMD_CTX, "address " TARGET_ADDR_FMT " length 0x%08zx",
3560 image.sections[i].base_address,
3561 buf_cnt);
3562 }
3563
3564 free(buffer);
3565 image_size += buf_cnt;
3566 }
3567 if (diffs > 0)
3568 command_print(CMD_CTX, "No more differences found.");
3569 done:
3570 if (diffs > 0)
3571 retval = ERROR_FAIL;
3572 if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
3573 command_print(CMD_CTX, "verified %" PRIu32 " bytes "
3574 "in %fs (%0.3f KiB/s)", image_size,
3575 duration_elapsed(&bench), duration_kbps(&bench, image_size));
3576 }
3577
3578 image_close(&image);
3579
3580 return retval;
3581 }
3582
3583 COMMAND_HANDLER(handle_verify_image_checksum_command)
3584 {
3585 return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_CHECKSUM_ONLY);
3586 }
3587
3588 COMMAND_HANDLER(handle_verify_image_command)
3589 {
3590 return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_VERIFY);
3591 }
3592
3593 COMMAND_HANDLER(handle_test_image_command)
3594 {
3595 return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, IMAGE_TEST);
3596 }
3597
3598 static int handle_bp_command_list(struct command_context *cmd_ctx)
3599 {
3600 struct target *target = get_current_target(cmd_ctx);
3601 struct breakpoint *breakpoint = target->breakpoints;
3602 while (breakpoint) {
3603 if (breakpoint->type == BKPT_SOFT) {
3604 char *buf = buf_to_str(breakpoint->orig_instr,
3605 breakpoint->length, 16);
3606 command_print(cmd_ctx, "IVA breakpoint: " TARGET_ADDR_FMT ", 0x%x, %i, 0x%s",
3607 breakpoint->address,
3608 breakpoint->length,
3609 breakpoint->set, buf);
3610 free(buf);
3611 } else {
3612 if ((breakpoint->address == 0) && (breakpoint->asid != 0))
3613 command_print(cmd_ctx, "Context breakpoint: 0x%8.8" PRIx32 ", 0x%x, %i",
3614 breakpoint->asid,
3615 breakpoint->length, breakpoint->set);
3616 else if ((breakpoint->address != 0) && (breakpoint->asid != 0)) {
3617 command_print(cmd_ctx, "Hybrid breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3618 breakpoint->address,
3619 breakpoint->length, breakpoint->set);
3620 command_print(cmd_ctx, "\t|--->linked with ContextID: 0x%8.8" PRIx32,
3621 breakpoint->asid);
3622 } else
3623 command_print(cmd_ctx, "Breakpoint(IVA): " TARGET_ADDR_FMT ", 0x%x, %i",
3624 breakpoint->address,
3625 breakpoint->length, breakpoint->set);
3626 }
3627
3628 breakpoint = breakpoint->next;
3629 }
3630 return ERROR_OK;
3631 }
3632
3633 static int handle_bp_command_set(struct command_context *cmd_ctx,
3634 target_addr_t addr, uint32_t asid, uint32_t length, int hw)
3635 {
3636 struct target *target = get_current_target(cmd_ctx);
3637 int retval;
3638
3639 if (asid == 0) {
3640 retval = breakpoint_add(target, addr, length, hw);
3641 if (ERROR_OK == retval)
3642 command_print(cmd_ctx, "breakpoint set at " TARGET_ADDR_FMT "", addr);
3643 else {
3644 LOG_ERROR("Failure setting breakpoint, the same address(IVA) is already used");
3645 return retval;
3646 }
3647 } else if (addr == 0) {
3648 if (target->type->add_context_breakpoint == NULL) {
3649 LOG_WARNING("Context breakpoint not available");
3650 return ERROR_OK;
3651 }
3652 retval = context_breakpoint_add(target, asid, length, hw);
3653 if (ERROR_OK == retval)
3654 command_print(cmd_ctx, "Context breakpoint set at 0x%8.8" PRIx32 "", asid);
3655 else {
3656 LOG_ERROR("Failure setting breakpoint, the same address(CONTEXTID) is already used");
3657 return retval;
3658 }
3659 } else {
3660 if (target->type->add_hybrid_breakpoint == NULL) {
3661 LOG_WARNING("Hybrid breakpoint not available");
3662 return ERROR_OK;
3663 }
3664 retval = hybrid_breakpoint_add(target, addr, asid, length, hw);
3665 if (ERROR_OK == retval)
3666 command_print(cmd_ctx, "Hybrid breakpoint set at 0x%8.8" PRIx32 "", asid);
3667 else {
3668 LOG_ERROR("Failure setting breakpoint, the same address is already used");
3669 return retval;
3670 }
3671 }
3672 return ERROR_OK;
3673 }
3674
3675 COMMAND_HANDLER(handle_bp_command)
3676 {
3677 target_addr_t addr;
3678 uint32_t asid;
3679 uint32_t length