target.c 98.2 KB
Newer Older
1
2
3
4
/***************************************************************************
 *   Copyright (C) 2005 by Dominic Rath                                    *
 *   Dominic.Rath@gmx.de                                                   *
 *                                                                         *
5
6
7
 *   Copyright (C) 2007,2008 yvind Harboe                                      *
 *   oyvind.harboe@zylin.com                                               *
 *                                                                         *
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
 *   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);

55

56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
int handle_targets_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);
78
int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
79
80
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);
81
static int jim_target( Jim_Interp *interp, int argc, Jim_Obj *const *argv);
82

83
84
85
86
87
static int target_array2mem(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv);
static int target_mem2array(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv);



88
/* targets */
89
90
91
92
93
94
95
96
97
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
98
extern target_type_t arm11_target;
ntfreak's avatar
ntfreak committed
99
extern target_type_t mips_m4k_target;
100
101
102
103
104
105
106
107
108
109
110
111

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
112
	&arm11_target,
ntfreak's avatar
ntfreak committed
113
	&mips_m4k_target,
114
115
116
	NULL,
};

117
target_t *all_targets = NULL;
118
119
120
target_event_callback_t *target_event_callbacks = NULL;
target_timer_callback_t *target_timer_callbacks = NULL;

121
122
123
124
125
126
127
128
const Jim_Nvp nvp_assert[] = {
	{ .name = "assert", NVP_ASSERT },
	{ .name = "deassert", NVP_DEASSERT },
	{ .name = "T", NVP_ASSERT },
	{ .name = "F", NVP_DEASSERT },
	{ .name = "t", NVP_ASSERT },
	{ .name = "f", NVP_DEASSERT },
	{ .name = NULL, .value = -1 }
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
const Jim_Nvp nvp_error_target[] = {
	{ .value = ERROR_TARGET_INVALID, .name = "err-invalid" },
	{ .value = ERROR_TARGET_INIT_FAILED, .name = "err-init-failed" },
	{ .value = ERROR_TARGET_TIMEOUT, .name = "err-timeout" },
	{ .value = ERROR_TARGET_NOT_HALTED, .name = "err-not-halted" },
	{ .value = ERROR_TARGET_FAILURE, .name = "err-failure" },
	{ .value = ERROR_TARGET_UNALIGNED_ACCESS   , .name = "err-unaligned-access" },
	{ .value = ERROR_TARGET_DATA_ABORT , .name = "err-data-abort" },
	{ .value = ERROR_TARGET_RESOURCE_NOT_AVAILABLE , .name = "err-resource-not-available" },
	{ .value = ERROR_TARGET_TRANSLATION_FAULT  , .name = "err-translation-fault" },
	{ .value = ERROR_TARGET_NOT_RUNNING, .name = "err-not-running" },
	{ .value = ERROR_TARGET_NOT_EXAMINED, .name = "err-not-examined" },
	{ .value = -1, .name = NULL }
};

const char *target_strerror_safe( int err )
{
	const Jim_Nvp *n;

	n = Jim_Nvp_value2name_simple( nvp_error_target, err );
	if( n->name == NULL ){
		return "unknown";
	} else {
		return n->name;
	}
}

158
const Jim_Nvp nvp_target_event[] = {
159
160
161
162
	{ .value = TARGET_EVENT_OLD_pre_reset          , .name = "old-pre_reset" },
	{ .value = TARGET_EVENT_OLD_gdb_program_config , .name = "old-gdb_program_config" },
	{ .value = TARGET_EVENT_OLD_post_reset         , .name = "old-post_reset" },
	{ .value = TARGET_EVENT_OLD_pre_resume         , .name = "old-pre_resume" },
163

164

165
166
167
168
169
170
	{ .value = TARGET_EVENT_HALTED, .name = "halted" },
	{ .value = TARGET_EVENT_RESUMED, .name = "resumed" },
	{ .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
	{ .value = TARGET_EVENT_RESUME_END, .name = "resume-end" },

	/* historical name */
171

172
	{ .value = TARGET_EVENT_RESET_START, .name = "reset-start" },
173
174
175
176
177
178
179
180
181

	{ .value = TARGET_EVENT_RESET_ASSERT_PRE,    .name = "reset-assert-pre" },
	{ .value = TARGET_EVENT_RESET_ASSERT_POST,   .name = "reset-assert-post" },
	{ .value = TARGET_EVENT_RESET_DEASSERT_PRE,  .name = "reset-deassert-pre" },
	{ .value = TARGET_EVENT_RESET_DEASSERT_POST, .name = "reset-deassert-post" },
	{ .value = TARGET_EVENT_RESET_HALT_PRE,      .name = "reset-halt-pre" },
	{ .value = TARGET_EVENT_RESET_HALT_POST,     .name = "reset-halt-post" },
	{ .value = TARGET_EVENT_RESET_WAIT_PRE,      .name = "reset-wait-pre" },
	{ .value = TARGET_EVENT_RESET_WAIT_POST,     .name = "reset-wait-post" },
182
183
184
	{ .value = TARGET_EVENT_RESET_INIT , .name = "reset-init" },
	{ .value = TARGET_EVENT_RESET_END, .name = "reset-end" },

185
186
187
188
189
190




	{ .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
	{ .value = TARGET_EVENT_EXAMINE_START, .name = "examine-end" },
191

192

193
194
195
196
197
198
	{ .value = TARGET_EVENT_DEBUG_HALTED, .name = "debug-halted" },
	{ .value = TARGET_EVENT_DEBUG_RESUMED, .name = "debug-resumed" },

	{ .value = TARGET_EVENT_GDB_ATTACH, .name = "gdb-attach" },
	{ .value = TARGET_EVENT_GDB_DETACH, .name = "gdb-detach" },

199

200
201
202
203
204
205
206
207
208
209
210
	{ .value = TARGET_EVENT_GDB_FLASH_WRITE_START, .name = "gdb-flash-write-start" },
	{ .value = TARGET_EVENT_GDB_FLASH_WRITE_END  , .name = "gdb-flash-write-end"   },

	{ .value = TARGET_EVENT_GDB_FLASH_ERASE_START, .name = "gdb-flash-erase-start" },
	{ .value = TARGET_EVENT_GDB_FLASH_ERASE_END  , .name = "gdb-flash-erase-end" },

	{ .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
	{ .value = TARGET_EVENT_RESUMED     , .name = "resume-ok" },
	{ .value = TARGET_EVENT_RESUME_END  , .name = "resume-end" },

	{ .name = NULL, .value = -1 }
211
212
};

213
214
215
216
217
218
219
const Jim_Nvp nvp_target_state[] = {
	{ .name = "unknown", .value = TARGET_UNKNOWN },
	{ .name = "running", .value = TARGET_RUNNING },
	{ .name = "halted",  .value = TARGET_HALTED },
	{ .name = "reset",   .value = TARGET_RESET },
	{ .name = "debug-running", .value = TARGET_DEBUG_RUNNING },
	{ .name = NULL, .value = -1 },
220
221
};

222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242

const Jim_Nvp nvp_target_debug_reason [] = {
	{ .name = "debug-request"            , .value = DBG_REASON_DBGRQ },
	{ .name = "breakpoint"               , .value = DBG_REASON_BREAKPOINT },
	{ .name = "watchpoint"               , .value = DBG_REASON_WATCHPOINT },
	{ .name = "watchpoint-and-breakpoint", .value = DBG_REASON_WPTANDBKPT },
	{ .name = "single-step"              , .value = DBG_REASON_SINGLESTEP },
	{ .name = "target-not-halted"        , .value = DBG_REASON_NOTHALTED  },
	{ .name = "undefined"                , .value = DBG_REASON_UNDEFINED },
	{ .name = NULL, .value = -1 },
};


const Jim_Nvp nvp_target_endian[] = {
	{ .name = "big",    .value = TARGET_BIG_ENDIAN },
	{ .name = "little", .value = TARGET_LITTLE_ENDIAN },
	{ .name = "be",     .value = TARGET_BIG_ENDIAN },
        { .name = "le",     .value = TARGET_LITTLE_ENDIAN },
	{ .name = NULL,     .value = -1 },
};

243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
const Jim_Nvp nvp_reset_modes[] = {
	{ .name = "unknown", .value = RESET_UNKNOWN },
	{ .name = "run"    , .value = RESET_RUN },
	{ .name = "halt"   , .value = RESET_HALT },
	{ .name = "init"   , .value = RESET_INIT },
	{ .name = NULL     , .value = -1 },
};

static int
max_target_number( void )
{
	target_t *t;
	int x;

	x = -1;
	t = all_targets;
	while( t ){
		if( x < t->target_number ){
			x = (t->target_number)+1;
		}
		t = t->next;
	}
	return x;
}
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286

/* determine the number of the new target */
static int
new_target_number( void )
{
	target_t *t;
	int x;

	/* number is 0 based */
	x = -1;
	t = all_targets;
	while(t){
		if( x < t->target_number ){
			x = t->target_number;
		}
		t = t->next;
	}
	return x+1;
}

287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
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);
}

307
308
309
310
311
312
/* read a u8 from a buffer in target memory endianness */
u8 target_buffer_get_u8(target_t *target, u8 *buffer)
{
	return *buffer & 0x0ff;
}

313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
/* 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);
}

331
332
333
334
335
336
/* write a u8 to a buffer in target memory endianness */
void target_buffer_set_u8(target_t *target, u8 *buffer, u8 value)
{
	*buffer = value;
}

337
338
339
/* returns a pointer to the n-th configured target */
target_t* get_target_by_num(int num)
{
340
	target_t *target = all_targets;
341

342
343
	while (target){
		if( target->target_number == num ){
344
			return target;
345
		}
346
347
348
349
350
351
352
353
		target = target->next;
	}

	return NULL;
}

int get_num_by_target(target_t *query_target)
{
354
	return query_target->target_number;
355
356
357
358
359
}

target_t* get_current_target(command_context_t *cmd_ctx)
{
	target_t *target = get_target_by_num(cmd_ctx->current_target);
oharboe's avatar
oharboe committed
360

361
362
	if (target == NULL)
	{
363
		LOG_ERROR("BUG: current_target out of bounds");
364
365
366
		exit(-1);
	}

oharboe's avatar
oharboe committed
367
	return target;
368
369
370
}


371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
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)
{
395
	int retval;
oharboe's avatar
oharboe committed
396

397
398
399
400
401
402
	/* We can't poll until after examine */
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
oharboe's avatar
oharboe committed
403

oharboe's avatar
oharboe committed
404
405
406
407
	/* 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.
	 */
408
409
	if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
		return retval;
oharboe's avatar
oharboe committed
410

411
	return retval;
412
413
}

414
// Next patch - this turns into TCL...
oharboe's avatar
   
oharboe committed
415
int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mode reset_mode)
416
417
418
{
	int retval = ERROR_OK;
	target_t *target;
419

420
	target = all_targets;
421
422

	target_all_handle_event( TARGET_EVENT_OLD_pre_reset );
oharboe's avatar
oharboe committed
423

424
425
	if ((retval = jtag_init_reset(cmd_ctx)) != ERROR_OK)
		return retval;
oharboe's avatar
oharboe committed
426

427
	keep_alive(); /* we might be running on a very slow JTAG clk */
oharboe's avatar
oharboe committed
428
429

	/* First time this is executed after launching OpenOCD, it will read out
430
	 * the type of CPU, etc. and init Embedded ICE registers in host
oharboe's avatar
oharboe committed
431
432
	 * memory.
	 *
433
	 * It will also set up ICE registers in the target.
oharboe's avatar
oharboe committed
434
435
436
	 *
	 * However, if we assert TRST later, we need to set up the registers again.
	 *
437
438
	 * For the "reset halt/init" case we must only set up the registers here.
	 */
439
	if ((retval = target_examine()) != ERROR_OK)
440
		return retval;
oharboe's avatar
oharboe committed
441

442
	keep_alive(); /* we might be running on a very slow JTAG clk */
oharboe's avatar
oharboe committed
443

444
	target = all_targets;
445
446
	while (target)
	{
oharboe's avatar
   
oharboe committed
447
448
449
450
		/* 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);
oharboe's avatar
   
oharboe committed
451
		target->reset_halt=((reset_mode==RESET_HALT)||(reset_mode==RESET_INIT));
452
453
		if ((retval = target->type->assert_reset(target))!=ERROR_OK)
			return retval;
454
455
		target = target->next;
	}
oharboe's avatar
oharboe committed
456

457
	target = all_targets;
458
	while (target)
oharboe's avatar
   
oharboe committed
459
	{
460
461
462
		if ((retval = target->type->deassert_reset(target))!=ERROR_OK)
			return retval;
		target = target->next;
oharboe's avatar
   
oharboe committed
463
	}
oharboe's avatar
oharboe committed
464

465
	target = all_targets;
466
467
	while (target)
	{
468
		/* We can fail to bring the target into the halted state, try after reset has been deasserted  */
469
		if (target->reset_halt)
oharboe's avatar
   
oharboe committed
470
		{
471
472
473
474
475
			/* wait up to 1 second for halt. */
			target_wait_state(target, TARGET_HALTED, 1000);
			if (target->state != TARGET_HALTED)
			{
				LOG_WARNING("Failed to reset target into halted mode - issuing halt");
476
477
				if ((retval = target->type->halt(target))!=ERROR_OK)
					return retval;
478
			}
oharboe's avatar
   
oharboe committed
479
		}
oharboe's avatar
oharboe committed
480

481
482
		target = target->next;
	}
oharboe's avatar
oharboe committed
483
484


ntfreak's avatar
ntfreak committed
485
	LOG_DEBUG("Waiting for halted stated as appropriate");
oharboe's avatar
oharboe committed
486
487

	if ((reset_mode == RESET_HALT) || (reset_mode == RESET_INIT))
488
	{
489
		target = all_targets;
oharboe's avatar
oharboe committed
490
		while (target)
491
		{
oharboe's avatar
oharboe committed
492
493
494
			/* Wait for reset to complete, maximum 5 seconds. */
			if (((retval=target_wait_state(target, TARGET_HALTED, 5000)))==ERROR_OK)
			{
495
496
497
				if (reset_mode == RESET_INIT){
					target_handle_event( target, TARGET_EVENT_OLD_post_reset );
				}
498

oharboe's avatar
oharboe committed
499
500
			}
			target = target->next;
501
502
		}
	}
oharboe's avatar
oharboe committed
503

504
	/* We want any events to be processed before the prompt */
505
506
	target_call_timer_callbacks_now();

507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
	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;
}

522
static int default_examine(struct target_s *target)
523
{
524
	target->type->examined = 1;
525
526
527
528
	return ERROR_OK;
}


529
530
/* Targets that correctly implement init+examine, i.e.
 * no communication with target during init:
oharboe's avatar
oharboe committed
531
532
 *
 * XScale
533
 */
ntfreak's avatar
ntfreak committed
534
int target_examine(void)
535
536
{
	int retval = ERROR_OK;
537
	target_t *target = all_targets;
538
539
	while (target)
	{
540
		if ((retval = target->type->examine(target))!=ERROR_OK)
541
542
543
544
545
			return retval;
		target = target->next;
	}
	return retval;
}
546

547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
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);
}
586

587
588
int target_init(struct command_context_s *cmd_ctx)
{
589
	target_t *target = all_targets;
oharboe's avatar
oharboe committed
590

591
592
	while (target)
	{
593
594
595
596
597
		target->type->examined = 0;
		if (target->type->examine == NULL)
		{
			target->type->examine = default_examine;
		}
oharboe's avatar
oharboe committed
598

599
600
		if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
		{
601
			LOG_ERROR("target '%s' init failed", target->type->name);
602
603
			exit(-1);
		}
oharboe's avatar
oharboe committed
604

605
606
607
608
609
		/* Set up default functions if none are provided by target */
		if (target->type->virt2phys == NULL)
		{
			target->type->virt2phys = default_virt2phys;
		}
610
611
612
613
614
615
616
617
618
619
620
621
622
		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;

oharboe's avatar
oharboe committed
623

624
625
626
627
628
629
		if (target->type->mmu == NULL)
		{
			target->type->mmu = default_mmu;
		}
		target = target->next;
	}
oharboe's avatar
oharboe committed
630

631
	if (all_targets)
632
633
634
635
	{
		target_register_user_commands(cmd_ctx);
		target_register_timer_callback(handle_target, 100, 1, NULL);
	}
oharboe's avatar
oharboe committed
636

637
638
639
640
641
642
	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;
oharboe's avatar
oharboe committed
643

644
645
646
647
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
648

649
650
651
652
653
654
	if (*callbacks_p)
	{
		while ((*callbacks_p)->next)
			callbacks_p = &((*callbacks_p)->next);
		callbacks_p = &((*callbacks_p)->next);
	}
oharboe's avatar
oharboe committed
655

656
657
658
659
	(*callbacks_p) = malloc(sizeof(target_event_callback_t));
	(*callbacks_p)->callback = callback;
	(*callbacks_p)->priv = priv;
	(*callbacks_p)->next = NULL;
oharboe's avatar
oharboe committed
660

661
662
663
664
665
666
667
	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;
oharboe's avatar
oharboe committed
668

669
670
671
672
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
673

674
675
676
677
678
679
	if (*callbacks_p)
	{
		while ((*callbacks_p)->next)
			callbacks_p = &((*callbacks_p)->next);
		callbacks_p = &((*callbacks_p)->next);
	}
oharboe's avatar
oharboe committed
680

681
682
683
684
	(*callbacks_p) = malloc(sizeof(target_timer_callback_t));
	(*callbacks_p)->callback = callback;
	(*callbacks_p)->periodic = periodic;
	(*callbacks_p)->time_ms = time_ms;
oharboe's avatar
oharboe committed
685

686
687
688
689
690
691
692
693
694
	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;
	}
oharboe's avatar
oharboe committed
695

696
697
	(*callbacks_p)->priv = priv;
	(*callbacks_p)->next = NULL;
oharboe's avatar
oharboe committed
698

699
700
701
702
703
704
705
	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;
oharboe's avatar
oharboe committed
706

707
708
709
710
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
711

712
713
714
715
716
717
718
719
720
721
722
723
724
	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;
	}
oharboe's avatar
oharboe committed
725

726
727
728
729
730
731
732
	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;
oharboe's avatar
oharboe committed
733

734
735
736
737
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
738

739
740
741
742
743
744
745
746
747
748
749
750
751
	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;
	}
oharboe's avatar
oharboe committed
752

753
754
755
756
757
758
759
	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;
oharboe's avatar
oharboe committed
760

761
762
	LOG_DEBUG("target event %i (%s)",
			  event,
763
			  Jim_Nvp_value2name_simple( nvp_target_event, event )->name );
oharboe's avatar
oharboe committed
764

765
	target_handle_event( target, event );
766

767
768
769
770
771
772
	while (callback)
	{
		next_callback = callback->next;
		callback->callback(target, event, callback->priv);
		callback = next_callback;
	}
oharboe's avatar
oharboe committed
773

774
775
776
	return ERROR_OK;
}

777
static int target_call_timer_callbacks_check_time(int checktime)
778
779
780
781
782
{
	target_timer_callback_t *callback = target_timer_callbacks;
	target_timer_callback_t *next_callback;
	struct timeval now;

783
	keep_alive();
oharboe's avatar
oharboe committed
784

785
	gettimeofday(&now, NULL);
oharboe's avatar
oharboe committed
786

787
788
789
	while (callback)
	{
		next_callback = callback->next;
oharboe's avatar
oharboe committed
790

791
792
793
		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)))
794
		{
795
			if(callback->callback != NULL)
796
			{
797
798
				callback->callback(callback->priv);
				if (callback->periodic)
799
				{
800
801
802
803
804
805
806
807
808
					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;
					}
809
				}
810
811
				else
					target_unregister_timer_callback(callback->callback, callback->priv);
812
813
			}
		}
oharboe's avatar
oharboe committed
814

815
816
		callback = next_callback;
	}
oharboe's avatar
oharboe committed
817

818
819
820
	return ERROR_OK;
}

oharboe's avatar
oharboe committed
821
int target_call_timer_callbacks(void)
822
823
824
825
826
{
	return target_call_timer_callbacks_check_time(1);
}

/* invoke periodic callbacks immediately */
oharboe's avatar
oharboe committed
827
int target_call_timer_callbacks_now(void)
828
{
oharboe's avatar
oharboe committed
829
	return target_call_timer_callbacks();
830
831
}

832
833
834
835
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;
oharboe's avatar
oharboe committed
836

837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
	/* 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;
		}
	}
oharboe's avatar
oharboe committed
856

857
858
859
	/* only allocate multiples of 4 byte */
	if (size % 4)
	{
860
		LOG_ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
861
862
		size = CEIL(size, 4);
	}
oharboe's avatar
oharboe committed
863

864
865
866
867
868
869
870
871
872
873
	/* see if there's already a matching working area */
	while (c)
	{
		if ((c->free) && (c->size == size))
		{
			new_wa = c;
			break;
		}
		c = c->next;
	}
oharboe's avatar
oharboe committed
874

875
876
877
878
879
880
	/* 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;
oharboe's avatar
oharboe committed
881

882
		LOG_DEBUG("allocating new working area");
oharboe's avatar
oharboe committed
883

884
885
886
887
888
889
890
891
		c = target->working_areas;
		while (c)
		{
			first_free += c->size;
			free_size -= c->size;
			p = &c->next;
			c = c->next;
		}
oharboe's avatar
oharboe committed
892

893
894
		if (free_size < size)
		{
895
			LOG_WARNING("not enough working area available(requested %d, free %d)", size, free_size);
896
897
			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
		}
oharboe's avatar
oharboe committed
898

899
900
901
902
		new_wa = malloc(sizeof(working_area_t));
		new_wa->next = NULL;
		new_wa->size = size;
		new_wa->address = first_free;
oharboe's avatar
oharboe committed
903

904
905
906
907
908
909
910
911
912
		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;
		}
oharboe's avatar
oharboe committed
913

914
915
916
		/* put new entry in list */
		*p = new_wa;
	}
oharboe's avatar
oharboe committed
917

918
919
920
	/* mark as used, and return the new (reused) area */
	new_wa->free = 0;
	*area = new_wa;
oharboe's avatar
oharboe committed
921

922
923
	/* user pointer */
	new_wa->user = area;
oharboe's avatar
oharboe committed
924

925
926
927
	return ERROR_OK;
}

oharboe's avatar
   
oharboe committed
928
int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
929
930
931
{
	if (area->free)
		return ERROR_OK;
oharboe's avatar
oharboe committed
932

oharboe's avatar
   
oharboe committed
933
	if (restore&&target->backup_working_area)
934
		target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
oharboe's avatar
oharboe committed
935

936
	area->free = 1;
oharboe's avatar
oharboe committed
937

938
939
940
	/* mark user pointer invalid */
	*area->user = NULL;
	area->user = NULL;
oharboe's avatar
oharboe committed
941

942
943
944
	return ERROR_OK;
}

oharboe's avatar
   
oharboe committed
945
946
947
948
949
950
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)
951
952
953
954
955
956
{
	working_area_t *c = target->working_areas;

	while (c)
	{
		working_area_t *next = c->next;
oharboe's avatar
   
oharboe committed
957
		target_free_working_area_restore(target, c, restore);
oharboe's avatar
oharboe committed
958

959
960
		if (c->backup)
			free(c->backup);
oharboe's avatar
oharboe committed
961

962
		free(c);
oharboe's avatar
oharboe committed
963

964
965
		c = next;
	}
oharboe's avatar
oharboe committed
966

967
	target->working_areas = NULL;
oharboe's avatar
oharboe committed
968

969
970
971
	return ERROR_OK;
}

oharboe's avatar
   
oharboe committed
972
973
int target_free_all_working_areas(struct target_s *target)
{
oharboe's avatar
oharboe committed
974
	return target_free_all_working_areas_restore(target, 1);
oharboe's avatar
   
oharboe committed
975
976
}

977
978
int target_register_commands(struct command_context_s *cmd_ctx)
{
979

980
981
982
	register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
	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>");
983
	register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>");
984

985
	register_jim(cmd_ctx, "target", jim_target, "configure target" );
986

987

988
	/* script procedures */
989
990
	register_jim(cmd_ctx, "ocd_mem2array", jim_mem2array, "read memory and return as a TCL array for script processing");
	register_jim(cmd_ctx, "ocd_array2mem", jim_array2mem, "convert a TCL array to memory locations and write the values");
991
992
993
994
995
996
997
998
	return ERROR_OK;
}

int target_arch_state(struct target_s *target)
{
	int retval;
	if (target==NULL)
	{
999
		LOG_USER("No target has been configured");
1000
		return ERROR_OK;
For faster browsing, not all history is shown. View entire blame