target.c 73 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
/***************************************************************************
 *   Copyright (C) 2005 by Dominic Rath                                    *
 *   Dominic.Rath@gmx.de                                                   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "replacements.h"
#include "target.h"
#include "target_request.h"

#include "log.h"
#include "configuration.h"
#include "binarybuffer.h"
#include "jtag.h"

#include <string.h>
#include <stdlib.h>
#include <inttypes.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>

#include <sys/time.h>
#include <time.h>

#include <time_support.h>

#include <fileio.h>
#include <image.h>

int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);

int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);

int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);

int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
76
int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
77
78
static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
79

80
81

/* targets */
82
83
84
85
86
87
88
89
90
extern target_type_t arm7tdmi_target;
extern target_type_t arm720t_target;
extern target_type_t arm9tdmi_target;
extern target_type_t arm920t_target;
extern target_type_t arm966e_target;
extern target_type_t arm926ejs_target;
extern target_type_t feroceon_target;
extern target_type_t xscale_target;
extern target_type_t cortexm3_target;
oharboe's avatar
oharboe committed
91
extern target_type_t arm11_target;
92
93
94
95
96
97
98
99
100
101
102
103

target_type_t *target_types[] =
{
	&arm7tdmi_target,
	&arm9tdmi_target,
	&arm920t_target,
	&arm720t_target,
	&arm966e_target,
	&arm926ejs_target,
	&feroceon_target,
	&xscale_target,
	&cortexm3_target,
oharboe's avatar
oharboe committed
104
	&arm11_target,
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
	NULL,
};

target_t *targets = NULL;
target_event_callback_t *target_event_callbacks = NULL;
target_timer_callback_t *target_timer_callbacks = NULL;

char *target_state_strings[] =
{
	"unknown",
	"running",
	"halted",
	"reset",
	"debug_running",
};

char *target_debug_reason_strings[] =
{
	"debug request", "breakpoint", "watchpoint",
	"watchpoint and breakpoint", "single step",
125
	"target not halted", "undefined"
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
};

char *target_endianess_strings[] =
{
	"big endian",
	"little endian",
};

static int target_continous_poll = 1;

/* read a u32 from a buffer in target memory endianness */
u32 target_buffer_get_u32(target_t *target, u8 *buffer)
{
	if (target->endianness == TARGET_LITTLE_ENDIAN)
		return le_to_h_u32(buffer);
	else
		return be_to_h_u32(buffer);
}

/* read a u16 from a buffer in target memory endianness */
u16 target_buffer_get_u16(target_t *target, u8 *buffer)
{
	if (target->endianness == TARGET_LITTLE_ENDIAN)
		return le_to_h_u16(buffer);
	else
		return be_to_h_u16(buffer);
}

/* write a u32 to a buffer in target memory endianness */
void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
{
	if (target->endianness == TARGET_LITTLE_ENDIAN)
		h_u32_to_le(buffer, value);
	else
		h_u32_to_be(buffer, value);
}

/* write a u16 to a buffer in target memory endianness */
void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
{
	if (target->endianness == TARGET_LITTLE_ENDIAN)
		h_u16_to_le(buffer, value);
	else
		h_u16_to_be(buffer, value);
}

/* returns a pointer to the n-th configured target */
target_t* get_target_by_num(int num)
{
	target_t *target = targets;
	int i = 0;

	while (target)
	{
		if (num == i)
			return target;
		target = target->next;
		i++;
	}

	return NULL;
}

int get_num_by_target(target_t *query_target)
{
	target_t *target = targets;
	int i = 0;	
	
	while (target)
	{
		if (target == query_target)
			return i;
		target = target->next;
		i++;
	}
	
	return -1;
}

target_t* get_current_target(command_context_t *cmd_ctx)
{
	target_t *target = get_target_by_num(cmd_ctx->current_target);
	
	if (target == NULL)
	{
211
		LOG_ERROR("BUG: current_target out of bounds");
212
213
214
215
216
217
218
219
220
221
222
223
224
		exit(-1);
	}
	
	return target;
}

/* Process target initialization, when target entered debug out of reset
 * the handler is unregistered at the end of this function, so it's only called once
 */
int target_init_handler(struct target_s *target, enum target_event event, void *priv)
{
	struct command_context_s *cmd_ctx = priv;
	
225
	if (event == TARGET_EVENT_HALTED)
226
227
	{
		target_unregister_event_callback(target_init_handler, priv);
228
		target_invoke_script(cmd_ctx, target, "post_reset");
229
230
231
232
233
234
235
236
237
238
		jtag_execute_queue();
	}
	
	return ERROR_OK;
}

int target_run_and_halt_handler(void *priv)
{
	target_t *target = priv;
	
239
	target_halt(target);
240
241
242
243
	
	return ERROR_OK;
}

244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
int target_poll(struct target_s *target)
{
	/* We can't poll until after examine */
	if (!target->type->examined)
	{
		/* Fail silently lest we pollute the log */
		return ERROR_FAIL;
	}
	return target->type->poll(target);
}

int target_halt(struct target_s *target)
{
	/* We can't poll until after examine */
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
	return target->type->halt(target);
}

int target_resume(struct target_s *target, int current, u32 address, int handle_breakpoints, int debug_execution)
{
268
269
	int retval;
	
270
271
272
273
274
275
	/* We can't poll until after examine */
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
276
	
oharboe's avatar
oharboe committed
277
278
279
280
	/* note that resume *must* be asynchronous. The CPU can halt before we poll. The CPU can
	 * even halt at the current PC as a result of a software breakpoint being inserted by (a bug?)
	 * the application.
	 */
281
282
283
284
	if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
		return retval;
	
	return retval;
285
286
}

287
288
289
290
291
int target_process_reset(struct command_context_s *cmd_ctx)
{
	int retval = ERROR_OK;
	target_t *target;
	struct timeval timeout, now;
292
293
294

	jtag->speed(jtag_speed);

295
296
297
	target = targets;
	while (target)
	{
oharboe's avatar
oharboe committed
298
		target_invoke_script(cmd_ctx, target, "pre_reset");
299
300
301
		target = target->next;
	}
	
302
303
304
	if ((retval = jtag_init_reset(cmd_ctx)) != ERROR_OK)
		return retval;
	
305
306
	keep_alive(); /* we might be running on a very slow JTAG clk */
	
307
308
309
310
311
312
313
314
315
316
	/* First time this is executed after launching OpenOCD, it will read out 
	 * the type of CPU, etc. and init Embedded ICE registers in host
	 * memory. 
	 * 
	 * It will also set up ICE registers in the target.
	 * 
	 * However, if we assert TRST later, we need to set up the registers again. 
	 * 
	 * For the "reset halt/init" case we must only set up the registers here.
	 */
317
318
319
	if ((retval = target_examine(cmd_ctx)) != ERROR_OK)
		return retval;
	
320
321
	keep_alive(); /* we might be running on a very slow JTAG clk */
	
322
323
324
325
326
327
328
329
330
	/* prepare reset_halt where necessary */
	target = targets;
	while (target)
	{
		if (jtag_reset_config & RESET_SRST_PULLS_TRST)
		{
			switch (target->reset_mode)
			{
				case RESET_HALT:
331
					command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_halt\"");
332
333
334
					target->reset_mode = RESET_RUN_AND_HALT;
					break;
				case RESET_INIT:
335
					command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_init\"");
336
337
338
339
340
341
342
343
344
345
346
347
					target->reset_mode = RESET_RUN_AND_INIT;
					break;
				default:
					break;
			} 
		}
		target = target->next;
	}
	
	target = targets;
	while (target)
	{
oharboe's avatar
   
oharboe committed
348
349
350
351
		/* we have no idea what state the target is in, so we
		 * have to drop working areas
		 */
		target_free_all_working_areas_restore(target, 0);
352
353
354
		target->type->assert_reset(target);
		target = target->next;
	}
oharboe's avatar
   
oharboe committed
355
356
357
358
359
	if ((retval = jtag_execute_queue()) != ERROR_OK)
	{
		LOG_WARNING("JTAG communication failed asserting reset.");
		retval = ERROR_OK;
	}
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
	
	/* request target halt if necessary, and schedule further action */
	target = targets;
	while (target)
	{
		switch (target->reset_mode)
		{
			case RESET_RUN:
				/* nothing to do if target just wants to be run */
				break;
			case RESET_RUN_AND_HALT:
				/* schedule halt */
				target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
				break;
			case RESET_RUN_AND_INIT:
				/* schedule halt */
				target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
				target_register_event_callback(target_init_handler, cmd_ctx);
				break;
			case RESET_HALT:
380
				target_halt(target);
381
382
				break;
			case RESET_INIT:
383
				target_halt(target);
384
385
386
				target_register_event_callback(target_init_handler, cmd_ctx);
				break;
			default:
387
				LOG_ERROR("BUG: unknown target->reset_mode");
388
389
390
391
		}
		target = target->next;
	}
	
oharboe's avatar
   
oharboe committed
392
393
394
395
396
397
	if ((retval = jtag_execute_queue()) != ERROR_OK)
	{
		LOG_WARNING("JTAG communication failed while reset was asserted. Consider using srst_only for reset_config.");
		retval = ERROR_OK;		
	}
	
398
399
400
401
402
403
	target = targets;
	while (target)
	{
		target->type->deassert_reset(target);
		target = target->next;
	}
oharboe's avatar
   
oharboe committed
404
	
405
406
407
408
409
410
	if ((retval = jtag_execute_queue()) != ERROR_OK)
	{
		LOG_WARNING("JTAG communication failed while deasserting reset.");
		retval = ERROR_OK;
	}

411
412
413
414
415
	if (jtag_reset_config & RESET_SRST_PULLS_TRST)
	{
		/* If TRST was asserted we need to set up registers again */
		if ((retval = target_examine(cmd_ctx)) != ERROR_OK)
			return retval;
416
	}		
417
	
418
419
420
421
422
	/* post reset scripts can be quite long, increase speed now. If post
	 * reset scripts needs a different speed, they can set the speed to
	 * whatever they need.
	 */
	jtag->speed(jtag_speed_post_reset);
423
	
oharboe's avatar
   
oharboe committed
424
425
	LOG_DEBUG("Waiting for halted stated as approperiate");
	
426
427
428
429
430
431
432
	/* Wait for reset to complete, maximum 5 seconds. */	
	gettimeofday(&timeout, NULL);
	timeval_add_time(&timeout, 5, 0);
	for(;;)
	{
		gettimeofday(&now, NULL);
		
433
		target_call_timer_callbacks_now();
434
435
436
437
		
		target = targets;
		while (target)
		{
oharboe's avatar
   
oharboe committed
438
			LOG_DEBUG("Polling target");
439
			target_poll(target);
oharboe's avatar
   
oharboe committed
440
441
442
443
			if ((target->reset_mode == RESET_RUN_AND_INIT) || 
					(target->reset_mode == RESET_RUN_AND_HALT) ||
					(target->reset_mode == RESET_HALT) ||
					(target->reset_mode == RESET_INIT))
444
445
446
447
448
			{
				if (target->state != TARGET_HALTED)
				{
					if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
					{
oharboe's avatar
   
oharboe committed
449
						LOG_USER("Timed out waiting for halt after reset");
450
451
						goto done;
					}
oharboe's avatar
oharboe committed
452
					/* this will send alive messages on e.g. GDB remote protocol. */
453
					usleep(500*1000); 
454
					LOG_USER_N("%s", ""); /* avoid warning about zero length formatting message*/ 
455
456
457
458
459
460
461
462
463
464
465
466
467
468
					goto again;
				}
			}
			target = target->next;
		}
		/* All targets we're waiting for are halted */
		break;
		
		again:;
	}
	done:
	
	
	/* We want any events to be processed before the prompt */
469
470
	target_call_timer_callbacks_now();

oharboe's avatar
   
oharboe committed
471
472
473
474
475
476
477
478
479
	/* if we timed out we need to unregister these handlers */
	target = targets;
	while (target)
	{
		target_unregister_timer_callback(target_run_and_halt_handler, target);
		target = target->next;
	}
	target_unregister_event_callback(target_init_handler, cmd_ctx);
	
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
	
	return retval;
}

static int default_virt2phys(struct target_s *target, u32 virtual, u32 *physical)
{
	*physical = virtual;
	return ERROR_OK;
}

static int default_mmu(struct target_s *target, int *enabled)
{
	*enabled = 0;
	return ERROR_OK;
}

496
497
static int default_examine(struct command_context_s *cmd_ctx, struct target_s *target)
{
498
	target->type->examined = 1;
499
500
501
502
	return ERROR_OK;
}


503
504
505
506
507
/* Targets that correctly implement init+examine, i.e.
 * no communication with target during init:
 * 
 * XScale 
 */
508
509
510
511
512
513
514
515
516
517
518
519
int target_examine(struct command_context_s *cmd_ctx)
{
	int retval = ERROR_OK;
	target_t *target = targets;
	while (target)
	{
		if ((retval = target->type->examine(cmd_ctx, target))!=ERROR_OK)
			return retval;
		target = target->next;
	}
	return retval;
}
520

521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
static int target_write_memory_imp(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
{
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
	return target->type->write_memory_imp(target, address, size, count, buffer);
}

static int target_read_memory_imp(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
{
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
	return target->type->read_memory_imp(target, address, size, count, buffer);
}

static int target_soft_reset_halt_imp(struct target_s *target)
{
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
	return target->type->soft_reset_halt_imp(target);
}

static int target_run_algorithm_imp(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info)
{
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
	return target->type->run_algorithm_imp(target, num_mem_params, mem_params, num_reg_params, reg_param, entry_point, exit_point, timeout_ms, arch_info);
}
560

561
562
563
564
565
566
int target_init(struct command_context_s *cmd_ctx)
{
	target_t *target = targets;
	
	while (target)
	{
567
568
569
570
571
572
		target->type->examined = 0;
		if (target->type->examine == NULL)
		{
			target->type->examine = default_examine;
		}
		
573
574
		if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
		{
575
			LOG_ERROR("target '%s' init failed", target->type->name);
576
577
578
579
580
581
582
583
			exit(-1);
		}
		
		/* Set up default functions if none are provided by target */
		if (target->type->virt2phys == NULL)
		{
			target->type->virt2phys = default_virt2phys;
		}
584
585
586
587
588
589
590
591
592
593
594
595
596
597
		target->type->virt2phys = default_virt2phys;
		/* a non-invasive way(in terms of patches) to add some code that
		 * runs before the type->write/read_memory implementation
		 */
		target->type->write_memory_imp = target->type->write_memory;
		target->type->write_memory = target_write_memory_imp;
		target->type->read_memory_imp = target->type->read_memory;
		target->type->read_memory = target_read_memory_imp;
		target->type->soft_reset_halt_imp = target->type->soft_reset_halt;
		target->type->soft_reset_halt = target_soft_reset_halt_imp;
		target->type->run_algorithm_imp = target->type->run_algorithm;
		target->type->run_algorithm = target_run_algorithm_imp;

		
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
		if (target->type->mmu == NULL)
		{
			target->type->mmu = default_mmu;
		}
		target = target->next;
	}
	
	if (targets)
	{
		target_register_user_commands(cmd_ctx);
		target_register_timer_callback(handle_target, 100, 1, NULL);
	}
		
	return ERROR_OK;
}

int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
{
	target_event_callback_t **callbacks_p = &target_event_callbacks;
	
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
	
	if (*callbacks_p)
	{
		while ((*callbacks_p)->next)
			callbacks_p = &((*callbacks_p)->next);
		callbacks_p = &((*callbacks_p)->next);
	}
	
	(*callbacks_p) = malloc(sizeof(target_event_callback_t));
	(*callbacks_p)->callback = callback;
	(*callbacks_p)->priv = priv;
	(*callbacks_p)->next = NULL;
	
	return ERROR_OK;
}

int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
{
	target_timer_callback_t **callbacks_p = &target_timer_callbacks;
	struct timeval now;
	
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
	
	if (*callbacks_p)
	{
		while ((*callbacks_p)->next)
			callbacks_p = &((*callbacks_p)->next);
		callbacks_p = &((*callbacks_p)->next);
	}
	
	(*callbacks_p) = malloc(sizeof(target_timer_callback_t));
	(*callbacks_p)->callback = callback;
	(*callbacks_p)->periodic = periodic;
	(*callbacks_p)->time_ms = time_ms;
	
	gettimeofday(&now, NULL);
	(*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
	time_ms -= (time_ms % 1000);
	(*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
	if ((*callbacks_p)->when.tv_usec > 1000000)
	{
		(*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
		(*callbacks_p)->when.tv_sec += 1;
	}
	
	(*callbacks_p)->priv = priv;
	(*callbacks_p)->next = NULL;
	
	return ERROR_OK;
}

int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
{
	target_event_callback_t **p = &target_event_callbacks;
	target_event_callback_t *c = target_event_callbacks;
	
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
		
	while (c)
	{
		target_event_callback_t *next = c->next;
		if ((c->callback == callback) && (c->priv == priv))
		{
			*p = next;
			free(c);
			return ERROR_OK;
		}
		else
			p = &(c->next);
		c = next;
	}
	
	return ERROR_OK;
}

int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
{
	target_timer_callback_t **p = &target_timer_callbacks;
	target_timer_callback_t *c = target_timer_callbacks;
	
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
		
	while (c)
	{
		target_timer_callback_t *next = c->next;
		if ((c->callback == callback) && (c->priv == priv))
		{
			*p = next;
			free(c);
			return ERROR_OK;
		}
		else
			p = &(c->next);
		c = next;
	}
	
	return ERROR_OK;
}

int target_call_event_callbacks(target_t *target, enum target_event event)
{
	target_event_callback_t *callback = target_event_callbacks;
	target_event_callback_t *next_callback;
	
735
	LOG_DEBUG("target event %i", event);
736
737
738
739
740
741
742
743
744
745
746
	
	while (callback)
	{
		next_callback = callback->next;
		callback->callback(target, event, callback->priv);
		callback = next_callback;
	}
	
	return ERROR_OK;
}

747
static int target_call_timer_callbacks_check_time(int checktime)
748
749
750
751
752
{
	target_timer_callback_t *callback = target_timer_callbacks;
	target_timer_callback_t *next_callback;
	struct timeval now;

753
754
	keep_alive();
	
755
756
757
758
759
760
	gettimeofday(&now, NULL);
	
	while (callback)
	{
		next_callback = callback->next;
		
761
762
763
		if ((!checktime&&callback->periodic)||
				(((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
						|| (now.tv_sec > callback->when.tv_sec)))
764
		{
765
			if(callback->callback != NULL)
766
			{
767
768
				callback->callback(callback->priv);
				if (callback->periodic)
769
				{
770
771
772
773
774
775
776
777
778
					int time_ms = callback->time_ms;
					callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
					time_ms -= (time_ms % 1000);
					callback->when.tv_sec = now.tv_sec + time_ms / 1000;
					if (callback->when.tv_usec > 1000000)
					{
						callback->when.tv_usec = callback->when.tv_usec - 1000000;
						callback->when.tv_sec += 1;
					}
779
				}
780
781
				else
					target_unregister_timer_callback(callback->callback, callback->priv);
782
783
784
785
786
787
788
789
790
			}
		}
			
		callback = next_callback;
	}
	
	return ERROR_OK;
}

791
792
793
794
795
796
int target_call_timer_callbacks()
{
	return target_call_timer_callbacks_check_time(1);
}

/* invoke periodic callbacks immediately */
797
798
int target_call_timer_callbacks_now()
{
799
	return target_call_timer_callbacks(0);
800
801
}

802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
{
	working_area_t *c = target->working_areas;
	working_area_t *new_wa = NULL;
	
	/* Reevaluate working area address based on MMU state*/
	if (target->working_areas == NULL)
	{
		int retval;
		int enabled;
		retval = target->type->mmu(target, &enabled);
		if (retval != ERROR_OK)
		{
			return retval;
		}
		if (enabled)
		{
			target->working_area = target->working_area_virt;
		}
		else
		{
			target->working_area = target->working_area_phys;
		}
	}
	
	/* only allocate multiples of 4 byte */
	if (size % 4)
	{
830
		LOG_ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
		size = CEIL(size, 4);
	}
	
	/* see if there's already a matching working area */
	while (c)
	{
		if ((c->free) && (c->size == size))
		{
			new_wa = c;
			break;
		}
		c = c->next;
	}
	
	/* if not, allocate a new one */
	if (!new_wa)
	{
		working_area_t **p = &target->working_areas;
		u32 first_free = target->working_area;
		u32 free_size = target->working_area_size;
		
852
		LOG_DEBUG("allocating new working area");
853
854
855
856
857
858
859
860
861
862
863
864
		
		c = target->working_areas;
		while (c)
		{
			first_free += c->size;
			free_size -= c->size;
			p = &c->next;
			c = c->next;
		}
		
		if (free_size < size)
		{
865
			LOG_WARNING("not enough working area available(requested %d, free %d)", size, free_size);
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
		}
		
		new_wa = malloc(sizeof(working_area_t));
		new_wa->next = NULL;
		new_wa->size = size;
		new_wa->address = first_free;
		
		if (target->backup_working_area)
		{
			new_wa->backup = malloc(new_wa->size);
			target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
		}
		else
		{
			new_wa->backup = NULL;
		}
		
		/* put new entry in list */
		*p = new_wa;
	}
	
	/* mark as used, and return the new (reused) area */
	new_wa->free = 0;
	*area = new_wa;
	
	/* user pointer */
	new_wa->user = area;
	
	return ERROR_OK;
}

oharboe's avatar
   
oharboe committed
898
int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
899
900
901
902
{
	if (area->free)
		return ERROR_OK;
	
oharboe's avatar
   
oharboe committed
903
	if (restore&&target->backup_working_area)
904
905
906
907
908
909
910
911
912
913
914
		target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
	
	area->free = 1;
	
	/* mark user pointer invalid */
	*area->user = NULL;
	area->user = NULL;
	
	return ERROR_OK;
}

oharboe's avatar
   
oharboe committed
915
916
917
918
919
920
int target_free_working_area(struct target_s *target, working_area_t *area)
{
	return target_free_working_area_restore(target, area, 1);
}

int target_free_all_working_areas_restore(struct target_s *target, int restore)
921
922
923
924
925
926
{
	working_area_t *c = target->working_areas;

	while (c)
	{
		working_area_t *next = c->next;
oharboe's avatar
   
oharboe committed
927
		target_free_working_area_restore(target, c, restore);
928
929
930
931
932
933
934
935
936
937
938
939
940
941
		
		if (c->backup)
			free(c->backup);
		
		free(c);
		
		c = next;
	}
	
	target->working_areas = NULL;
	
	return ERROR_OK;
}

oharboe's avatar
   
oharboe committed
942
943
944
945
946
int target_free_all_working_areas(struct target_s *target)
{
	return target_free_all_working_areas_restore(target, 1); 
}

947
948
int target_register_commands(struct command_context_s *cmd_ctx)
{
949
	register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, "target <cpu> [reset_init default - DEPRECATED] <chainpos> <endianness> <variant> [cpu type specifc args]");
950
	register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
951
	register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, "<target> <run time ms>");
952
953
	register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, "working_area <target#> <address> <size> <'backup'|'nobackup'> [virtual address]");
	register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>");
954
	register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>");
955

956

957
958
	/* script procedures */
	register_jim(cmd_ctx, "openocd_mem2array", jim_mem2array, "read memory and return as a TCL array for script processing");
959
	register_jim(cmd_ctx, "openocd_array2mem", jim_array2mem, "convert a TCL array to memory locations and write the values");
960
961
962
963
964
965
966
967
	return ERROR_OK;
}

int target_arch_state(struct target_s *target)
{
	int retval;
	if (target==NULL)
	{
968
		LOG_USER("No target has been configured");
969
970
971
		return ERROR_OK;
	}
	
972
	LOG_USER("target state: %s", target_state_strings[target->state]);
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
	
	if (target->state!=TARGET_HALTED)
		return ERROR_OK;
	
	retval=target->type->arch_state(target);
	return retval;
}

/* Single aligned words are guaranteed to use 16 or 32 bit access 
 * mode respectively, otherwise data is handled as quickly as 
 * possible
 */
int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
{
	int retval;
988
989
990
991
992
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
993
	
994
	LOG_DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
	
	if (((address % 2) == 0) && (size == 2))
	{
		return target->type->write_memory(target, address, 2, 1, buffer);
	}
	
	/* handle unaligned head bytes */
	if (address % 4)
	{
		int unaligned = 4 - (address % 4);
		
		if (unaligned > size)
			unaligned = size;

		if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
			return retval;
		
		buffer += unaligned;
		address += unaligned;
		size -= unaligned;
	}
		
	/* handle aligned words */
	if (size >= 4)
	{
		int aligned = size - (size % 4);
	
		/* use bulk writes above a certain limit. This may have to be changed */
		if (aligned > 128)
		{
			if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
				return retval;
		}
		else
		{
			if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
				return retval;
		}
		
		buffer += aligned;
		address += aligned;
		size -= aligned;
	}
	
	/* handle tail writes of less than 4 bytes */
	if (size > 0)
	{
		if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
			return retval;
	}
	
	return ERROR_OK;
}


/* Single aligned words are guaranteed to use 16 or 32 bit access 
 * mode respectively, otherwise data is handled as quickly as 
 * possible
 */
int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
{
	int retval;
1057
1058
1059
1060
1061
1062
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}

1063
	LOG_DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
	
	if (((address % 2) == 0) && (size == 2))
	{
		return target->type->read_memory(target, address, 2, 1, buffer);
	}
	
	/* handle unaligned head bytes */
	if (address % 4)
	{
		int unaligned = 4 - (address % 4);
		
		if (unaligned > size)
			unaligned = size;

		if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
			return retval;
		
		buffer += unaligned;
		address += unaligned;
		size -= unaligned;
	}
		
	/* handle aligned words */
	if (size >= 4)
	{
		int aligned = size - (size % 4);
	
		if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
			return retval;
		
		buffer += aligned;
		address += aligned;
		size -= aligned;
	}
	
	/* handle tail writes of less than 4 bytes */
	if (size > 0)
	{
		if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
			return retval;
	}
	
	return ERROR_OK;
}

int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32* crc)
{
	u8 *buffer;
	int retval;
	int i;
	u32 checksum = 0;
1115
1116
1117
1118
1119
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
1120
1121
1122
1123
1124
1125
1126
	
	if ((retval = target->type->checksum_memory(target, address,
		size, &checksum)) == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
	{
		buffer = malloc(size);
		if (buffer == NULL)
		{
1127
			LOG_ERROR("error allocating buffer for section (%d bytes)", size);
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
			return ERROR_INVALID_ARGUMENTS;
		}
		retval = target_read_buffer(target, address, size, buffer);
		if (retval != ERROR_OK)
		{
			free(buffer);
			return retval;
		}

		/* convert to target endianess */
		for (i = 0; i < (size/sizeof(u32)); i++)
		{
			u32 target_data;
			target_data = target_buffer_get_u32(target, &buffer[i*sizeof(u32)]);
			target_buffer_set_u32(target, &buffer[i*sizeof(u32)], target_data);
		}

		retval = image_calculate_checksum( buffer, size, &checksum );
		free(buffer);
	}
	
	*crc = checksum;
	
	return retval;
}
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169

int target_blank_check_memory(struct target_s *target, u32 address, u32 size, u32* blank)
{
	int retval;
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
	
	if (target->type->blank_check_memory == 0)
		return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
	
	retval = target->type->blank_check_memory(target, address, size, blank);
			
	return retval;
}
1170
1171
1172
1173

int target_read_u32(struct target_s *target, u32 address, u32 *value)
{
	u8 value_buf[4];
1174
1175
1176
1177
1178
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
1179
1180
1181
1182
1183
1184

	int retval = target->type->read_memory(target, address, 4, 1, value_buf);
	
	if (retval == ERROR_OK)
	{
		*value = target_buffer_get_u32(target, value_buf);
1185
		LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
1186
1187
1188
1189
	}
	else
	{
		*value = 0x0;
1190
		LOG_DEBUG("address: 0x%8.8x failed", address);
1191
1192
1193
1194
1195
1196
1197
1198
	}
	
	return retval;
}

int target_read_u16(struct target_s *target, u32 address, u16 *value)
{
	u8 value_buf[2];
1199
1200
1201
1202
1203
1204
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}

1205
1206
1207
1208
1209
	int retval = target->type->read_memory(target, address, 2, 1, value_buf);
	
	if (retval == ERROR_OK)
	{
		*value = target_buffer_get_u16(target, value_buf);
1210
		LOG_DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
1211
1212
1213
1214
	}
	else
	{
		*value = 0x0;
1215
		LOG_DEBUG("address: 0x%8.8x failed", address);
1216
1217
1218
1219
1220
1221
1222
1223
	}
	
	return retval;
}

int target_read_u8(struct target_s *target, u32 address, u8 *value)
{
	int retval = target->type->read_memory(target, address, 1, 1, value);
1224
1225
1226
1227
1228
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
1229
1230
1231

	if (retval == ERROR_OK)
	{
1232
		LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
1233
1234
1235
1236
	}
	else
	{
		*value = 0x0;
1237
		LOG_DEBUG("address: 0x%8.8x failed", address);
1238
1239
1240
1241
1242
1243
1244
1245
1246
	}
	
	return retval;
}

int target_write_u32(struct target_s *target, u32 address, u32 value)
{
	int retval;
	u8 value_buf[4];
1247
1248
1249
1250
1251
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
1252

1253
	LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1254
1255
1256
1257

	target_buffer_set_u32(target, value_buf, value);	
	if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
	{
1258
		LOG_DEBUG("failed: %i", retval);
1259
1260
1261
1262
1263
1264
1265
1266
1267
	}
	
	return retval;
}

int target_write_u16(struct target_s *target, u32 address, u16 value)
{
	int retval;
	u8 value_buf[2];
1268
1269
1270
1271
1272
1273
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}

1274
	LOG_DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1275
1276
1277
1278

	target_buffer_set_u16(target, value_buf, value);	
	if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
	{
1279
		LOG_DEBUG("failed: %i", retval);
1280
1281
1282
1283
1284
1285
1286
1287
	}
	
	return retval;
}

int target_write_u8(struct target_s *target, u32 address, u8 value)
{
	int retval;
1288
1289
1290
1291
1292
1293
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}

1294
	LOG_DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
1295
1296
1297

	if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
	{
1298
		LOG_DEBUG("failed: %i", retval);
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
	}
	
	return retval;
}

int target_register_user_commands(struct command_context_s *cmd_ctx)
{
	register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
	register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
	register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
	register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
	register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
	register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
	register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
	register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");

	register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
	register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
	register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
	
oharboe's avatar
oharboe committed
1319
1320
1321
	register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value> [count]");
	register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
	register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
	
	register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");	
	register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
	register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");	
	register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
	
	register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19']");
	register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
	register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
	register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
	register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
	
	target_request_register_commands(cmd_ctx);
	trace_register_commands(cmd_ctx);
	
	return ERROR_OK;
}

int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
	target_t *target = targets;
	int count = 0;
	
	if (argc == 1)
	{
		int num = strtoul(args[0], NULL, 0);
		
		while (target)
		{
			count++;
			target = target->next;
		}
		
		if (num < count)
			cmd_ctx->current_target = num;
		else
			command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
			
		return ERROR_OK;
	}
		
	while (target)
	{
		command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
		target = target->next;
	}
	
	return ERROR_OK;
}

int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
	int i;
	int found = 0;
	
	if (argc < 3)
	{
1379
		return ERROR_COMMAND_SYNTAX_ERROR;
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
	}
	
	/* search for the specified target */
	if (args[0] && (args[0][0] != 0))
	{
		for (i = 0; target_types[i]; i++)
		{
			if (strcmp(args[0], target_types[i]->name) == 0)
			{
				target_t **last_target_p = &targets;
				
				/* register target specific commands */
				if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
				{
1394
					LOG_ERROR("couldn't register '%s' commands", args[0]);
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
					exit(-1);
				}

				if (*last_target_p)
				{
					while ((*last_target_p)->next)
						last_target_p = &((*last_target_p)->next);
					last_target_p = &((*last_target_p)->next);
				}

				*last_target_p = malloc(sizeof(target_t));
				
1407
1408
1409
				/* allocate memory for each unique target type */
				(*last_target_p)->type = (target_type_t*)malloc(sizeof(target_type_t));
				*((*last_target_p)->type) = *target_types[i]; 
1410
1411
1412
1413
1414
1415
1416
				
				if (strcmp(args[1], "big") == 0)
					(*last_target_p)->endianness = TARGET_BIG_ENDIAN;
				else if (strcmp(args[1], "little") == 0)
					(*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
				else
				{
1417
					LOG_ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
1418
					return ERROR_COMMAND_SYNTAX_ERROR;
1419
1420
1421
				}
				
				if (strcmp(args[2], "reset_halt") == 0)
1422
1423
1424
				{
					LOG_WARNING("reset_mode argument is deprecated. reset_mode = reset_run");
				}
1425
				else if (strcmp(args[2], "reset_run") == 0)
1426
1427
1428
				{
					LOG_WARNING("reset_mode argument is deprecated. reset_mode = reset_run");
				}
1429
				else if (strcmp(args[2], "reset_init") == 0)
1430
1431
1432
				{
					LOG_WARNING("reset_mode argument is deprecated. reset_mode = reset_run");
				}
1433
				else if (strcmp(args[2], "run_and_halt") == 0)
1434
1435
1436
				{
					LOG_WARNING("reset_mode argument is deprecated. reset_mode = reset_run");
				}
1437
				else if (strcmp(args[2], "run_and_init") == 0)
1438
1439
1440
				{
					LOG_WARNING("reset_mode argument is deprecated. reset_mode = reset_run");
				}
1441
1442
				else
				{
1443
1444
1445
					/* Kludge! we want to make this reset arg optional while remaining compatible! */
					args--;
					argc++;
1446
1447
1448
1449
1450
1451
1452
1453
1454
				}
				(*last_target_p)->run_and_halt_time = 1000; /* default 1s */
				
				(*last_target_p)->working_area = 0x0;
				(*last_target_p)->working_area_size = 0x0;
				(*last_target_p)->working_areas = NULL;
				(*last_target_p)->backup_working_area = 0;
				
				(*last_target_p)->state = TARGET_UNKNOWN;
1455
				(*last_target_p)->debug_reason = DBG_REASON_UNDEFINED;
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
				(*last_target_p)->reg_cache = NULL;
				(*last_target_p)->breakpoints = NULL;
				(*last_target_p)->watchpoints = NULL;
				(*last_target_p)->next = NULL;
				(*last_target_p)->arch_info = NULL;
				
				/* initialize trace information */
				(*last_target_p)->trace_info = malloc(sizeof(trace_t));
				(*last_target_p)->trace_info->num_trace_points = 0;
				(*last_target_p)->trace_info->trace_points_size = 0;
				(*last_target_p)->trace_info->trace_points = NULL;
				(*last_target_p)->trace_info->trace_history_size = 0;
				(*last_target_p)->trace_info->trace_history = NULL;
				(*last_target_p)->trace_info->trace_history_pos = 0;
				(*last_target_p)->trace_info->trace_history_overflowed = 0;
				
				(*last_target_p)->dbgmsg = NULL;
				(*last_target_p)->dbg_msg_enabled = 0;
								
				(*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
				
				found = 1;
				break;
			}
		}
	}
	
	/* no matching target found */
	if (!found)
	{
1486
		LOG_ERROR("target '%s' not found", args[0]);
1487
		return ERROR_COMMAND_SYNTAX_ERROR;
1488
1489
1490
1491
1492
	}

	return ERROR_OK;
}

oharboe's avatar
oharboe committed
1493
1494
1495
1496
1497
1498
1499
int target_invoke_script(struct command_context_s *cmd_ctx, target_t *target, char *name)
{
	return command_run_linef(cmd_ctx, " if {[catch {info body target_%s_%d} t]==0} {target_%s_%d}", 
	name, get_num_by_target(target),
	name, get_num_by_target(target));
}

1500
1501
1502
1503
1504
1505
int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
	target_t *target = NULL;
	
	if (argc < 2)
	{
1506
		return ERROR_COMMAND_SYNTAX_ERROR;
1507
1508
1509
1510
1511
	}
	
	target = get_target_by_num(strtoul(args[0], NULL, 0));
	if (!target)
	{
1512
		return ERROR_COMMAND_SYNTAX_ERROR;
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
	}
	
	target->run_and_halt_time = strtoul(args[1], NULL, 0);
	
	return ERROR_OK;
}

int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
	target_t *target = NULL;
	
	if ((argc < 4) || (argc > 5))
	{
		return ERROR_COMMAND_SYNTAX_ERROR;
	}
	
	target = get_target_by_num(strtoul(args[0], NULL, 0));
	if (!target)
	{
1532
		return ERROR_COMMAND_SYNTAX_ERROR;
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
	}
	target_free_all_working_areas(target);
	
	target->working_area_phys = target->working_area_virt = strtoul(args[1], NULL, 0);
	if (argc == 5)
	{
		target->working_area_virt = strtoul(args[4], NULL, 0);
	}
	target->working_area_size = strtoul(args[2], NULL, 0);
	
	if (strcmp(args[3], "backup") == 0)
	{
		target->backup_working_area = 1;
	}
	else if (strcmp(args[3], "nobackup") == 0)
	{
		target->backup_working_area = 0;
	}
	else
	{
1553
		LOG_ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
		return ERROR_COMMAND_SYNTAX_ERROR;
	}
	
	return ERROR_OK;
}


/* process target state changes */
int handle_target(void *priv)
{
	target_t *target = targets;
	
	while (target)
	{
1568
		if (target_continous_poll)
1569
		{
1570
1571
			/* polling may fail silently until the target has been examined */
			target_poll(target);
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
		}
	
		target = target->next;
	}
	
	return ERROR_OK;
}

int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
	target_t *target;
	reg_t *reg = NULL;
	int count = 0;
	char *value;
	
1587
	LOG_DEBUG("-");
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
	
	target = get_current_target(cmd_ctx);
	
	/* list all available registers for the current target */
	if (argc == 0)
	{
		reg_cache_t *cache = target->reg_cache;
		
		count = 0;
		while(cache)
		{
			int i;
			for (i = 0; i < cache->num_regs; i++)
			{
				value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
				command_print(cmd_ctx, "(%i) %s (/%i): 0x%s (dirty: %i, valid: %i)", count++, cache->reg_list[i].name, cache->reg_list[i].size, value, cache->reg_list[i].dirty, cache->reg_list[i].valid);
				free(value);
			}
			cache = cache->next;
		}
		
		return ERROR_OK;
	}
	
	/* access a single register by its ordinal number */
	if ((args[0][0] >= '0') && (args[0][0] <= '9'))
	{
		int num = strtoul(args[0], NULL, 0);
		reg_cache_t *cache = target->reg_cache;
		
		count = 0;
		while(cache)
		{
			int i;
			for (i = 0; i < cache->num_regs; i++)
			{
				if (count++ == num)
				{
					reg = &cache->reg_list[i];
					break;
				}
			}
			if (reg)
				break;
			cache = cache->next;
		}
		
		if (!reg)
		{
			command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
			return ERROR_OK;
		}
	} else /* access a single register by its name */
	{
		reg = register_get_by_name(target->reg_cache, args[0], 1);
		
		if (!reg)
		{
			command_print(cmd_ctx, "register %s not found in current target", args[0]);
			return ERROR_OK;
		}
	}

	/* display a register */
	if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
	{
		if ((argc == 2) && (strcmp(args[1], "force") == 0))
			reg->valid = 0;
		
		if (reg->valid == 0)
		{
			reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
			if (arch_type == NULL)
			{
1662
				LOG_ERROR("BUG: encountered unregistered arch type");
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
				return ERROR_OK;
			}
			arch_type->get(reg);
		}
		value = buf_to_str(reg->value, reg->size, 16);
		command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
		free(value);
		return ERROR_OK;
	}
	
	/* set register value */
	if (argc == 2)
	{
		u8 *buf = malloc(CEIL(reg->size, 8));
		str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);

		reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
		if (arch_type == NULL)
		{
1682
			LOG_ERROR("BUG: encountered unregistered arch type");
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
			return ERROR_OK;
		}
		
		arch_type->set(reg, buf);
		
		value = buf_to_str(reg->value, reg->size, 16);
		command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
		free(value);
		
		free(buf);
		
		return ERROR_OK;
	}
	
	command_print(cmd_ctx, "usage: reg <#|name> [value]");
	
	return ERROR_OK;
}

static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms);

int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
	target_t *target = get_current_target(cmd_ctx);

	if (argc == 0)
	{
1710
		target_poll(target);
1711
		target_arch_state(target);
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
	}
	else
	{
		if (strcmp(args[0], "on") == 0)
		{
			target_continous_poll = 1;
		}
		else if (strcmp(args[0], "off") == 0)
		{
			target_continous_poll = 0;
		}
		else
		{
			command_print(cmd_ctx, "arg is \"on\" or \"off\"");
		}
	}
	
	
	return ERROR_OK;
}

int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
	int ms = 5000;
	
	if (argc > 0)
	{
		char *end;

		ms = strtoul(args[0], &end, 0) * 1000;
		if (*end)
		{
			command_print(cmd_ctx, "usage: %s [seconds]", cmd);
			return ERROR_OK;
		}
	}

	return wait_state(cmd_ctx, cmd, TARGET_HALTED, ms); 
}

static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms)
{
	int retval;
	struct timeval timeout, now;
1756
	int once=1;
1757
1758
1759
1760
1761
1762
	gettimeofday(&timeout, NULL);
	timeval_add_time(&timeout, 0, ms * 1000);
	
	target_t *target = get_current_target(cmd_ctx);
	for (;;)
	{
1763
		if ((retval=target_poll(target))!=ERROR_OK)
1764
			return retval;
1765
		target_call_timer_callbacks_now();
1766
1767
1768
1769
		if (target->state == state)
		{
			break;
		}
1770
1771