target.c 98.4 KB
Newer Older
1
2
3
4
/***************************************************************************
 *   Copyright (C) 2005 by Dominic Rath                                    *
 *   Dominic.Rath@gmx.de                                                   *
 *                                                                         *
5
 *   Copyright (C) 2007,2008 yvind Harboe                                 *
6
7
 *   oyvind.harboe@zylin.com                                               *
 *                                                                         *
8
9
10
 *   Copyright (C) 2008, Duane Ellis                                       *
 *   openocd@duaneeellis.com                                               *
 *                                                                         *
11
12
13
 *   Copyright (C) 2008 by Spencer Oliver                                  *
 *   spen@spen-soft.co.uk                                                  *
 *                                                                         *
14
15
16
 *   Copyright (C) 2008 by Rick Altherr                                    *
 *   kc8apf@kc8apf.net>                                                    *
 *                                                                         *
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
 *   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);

64

65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
int handle_targets_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);
85
int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
86
87
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);
88
static int jim_target( Jim_Interp *interp, int argc, Jim_Obj *const *argv);
89

90
91
92
93
94
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);



95
/* targets */
96
97
98
99
100
101
102
103
104
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
105
extern target_type_t arm11_target;
ntfreak's avatar
ntfreak committed
106
extern target_type_t mips_m4k_target;
107
108
109
110
111
112
113
114
115
116
117
118

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
119
	&arm11_target,
ntfreak's avatar
ntfreak committed
120
	&mips_m4k_target,
121
122
123
	NULL,
};

124
target_t *all_targets = NULL;
125
126
127
target_event_callback_t *target_event_callbacks = NULL;
target_timer_callback_t *target_timer_callbacks = NULL;

128
129
130
131
132
133
134
135
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 }
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
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;
	}
}

165
const Jim_Nvp nvp_target_event[] = {
166
167
	{ .value = TARGET_EVENT_OLD_gdb_program_config , .name = "old-gdb_program_config" },
	{ .value = TARGET_EVENT_OLD_pre_resume         , .name = "old-pre_resume" },
168

169

170
	{ .value = TARGET_EVENT_EARLY_HALTED, .name = "early-halted" },
171
172
173
174
175
	{ .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" },

176
177
178
179
180

	{ .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
	{ .name = "gdb-end", .value = TARGET_EVENT_GDB_END },


181
	/* historical name */
182

183
	{ .value = TARGET_EVENT_RESET_START, .name = "reset-start" },
184
185
186
187
188
189
190
191
192

	{ .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" },
193
194
195
	{ .value = TARGET_EVENT_RESET_INIT , .name = "reset-init" },
	{ .value = TARGET_EVENT_RESET_END, .name = "reset-end" },

196
197
198
199
200




	{ .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
201
	{ .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
202

203

204
205
206
207
208
209
	{ .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" },

210

211
212
213
214
215
216
217
218
219
220
221
	{ .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 }
222
223
};

224
225
226
227
228
229
230
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 },
231
232
};

233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253

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 },
};

254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
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;
}
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297

/* 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;
}

298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
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);
}

318
319
320
321
322
323
/* read a u8 from a buffer in target memory endianness */
u8 target_buffer_get_u8(target_t *target, u8 *buffer)
{
	return *buffer & 0x0ff;
}

324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
/* 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);
}

342
343
344
345
346
347
/* write a u8 to a buffer in target memory endianness */
void target_buffer_set_u8(target_t *target, u8 *buffer, u8 value)
{
	*buffer = value;
}

348
349
350
/* returns a pointer to the n-th configured target */
target_t* get_target_by_num(int num)
{
351
	target_t *target = all_targets;
352

353
354
	while (target){
		if( target->target_number == num ){
355
			return target;
356
		}
357
358
359
360
361
362
363
364
		target = target->next;
	}

	return NULL;
}

int get_num_by_target(target_t *query_target)
{
365
	return query_target->target_number;
366
367
368
369
370
}

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
371

372
373
	if (target == NULL)
	{
374
		LOG_ERROR("BUG: current_target out of bounds");
375
376
377
		exit(-1);
	}

oharboe's avatar
oharboe committed
378
	return target;
379
380
381
}


382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
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)
{
406
	int retval;
oharboe's avatar
oharboe committed
407

408
409
410
411
412
413
	/* 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
414

oharboe's avatar
oharboe committed
415
416
417
418
	/* 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.
	 */
419
420
	if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
		return retval;
oharboe's avatar
oharboe committed
421

422
	return retval;
423
424
}

425

oharboe's avatar
oharboe committed
426
int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mode reset_mode)
427
428
{
	char buf[100];
429
	int retval;
430
431
432
433
434
435
436
437
	Jim_Nvp *n;
	n = Jim_Nvp_value2name_simple( nvp_reset_modes, reset_mode );
	if( n->name == NULL ){
		LOG_ERROR("invalid reset mode");
		return ERROR_FAIL;
	}

	sprintf( buf, "ocd_process_reset %s", n->name );
438
439
	retval = Jim_Eval( interp, buf );

440
441
	if(retval != JIM_OK) {
		Jim_PrintErrorMessage(interp);
442
443
		return ERROR_FAIL;
	}
444
445

	/* We want any events to be processed before the prompt */
446
	retval = target_call_timer_callbacks_now();
447

448
	return retval;
449
450
451
}


452
453
454
455
456
457
458
459
460
461
462
463
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;
}

464
static int default_examine(struct target_s *target)
465
{
466
	target->type->examined = 1;
467
468
469
470
	return ERROR_OK;
}


471
472
/* Targets that correctly implement init+examine, i.e.
 * no communication with target during init:
oharboe's avatar
oharboe committed
473
474
 *
 * XScale
475
 */
ntfreak's avatar
ntfreak committed
476
int target_examine(void)
477
478
{
	int retval = ERROR_OK;
479
	target_t *target = all_targets;
480
481
	while (target)
	{
482
		if ((retval = target->type->examine(target))!=ERROR_OK)
483
484
485
486
487
			return retval;
		target = target->next;
	}
	return retval;
}
488

489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
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);
}
528

529
530
int target_init(struct command_context_s *cmd_ctx)
{
531
	target_t *target = all_targets;
532
	int retval;
oharboe's avatar
oharboe committed
533

534
535
	while (target)
	{
536
537
538
539
540
		target->type->examined = 0;
		if (target->type->examine == NULL)
		{
			target->type->examine = default_examine;
		}
oharboe's avatar
oharboe committed
541

542
		if ((retval = target->type->init_target(cmd_ctx, target)) != ERROR_OK)
543
		{
544
			LOG_ERROR("target '%s' init failed", target->type->name);
545
			return retval;
546
		}
oharboe's avatar
oharboe committed
547

548
549
550
551
552
		/* Set up default functions if none are provided by target */
		if (target->type->virt2phys == NULL)
		{
			target->type->virt2phys = default_virt2phys;
		}
553
554
555
556
557
558
559
560
561
562
563
564
565
		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
566

567
568
569
570
571
572
		if (target->type->mmu == NULL)
		{
			target->type->mmu = default_mmu;
		}
		target = target->next;
	}
oharboe's avatar
oharboe committed
573

574
	if (all_targets)
575
	{
576
577
578
579
		if((retval = target_register_user_commands(cmd_ctx)) != ERROR_OK)
			return retval;
		if((retval = target_register_timer_callback(handle_target, 100, 1, NULL)) != ERROR_OK)
			return retval;
580
	}
oharboe's avatar
oharboe committed
581

582
583
584
585
586
587
	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
588

589
590
591
592
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
593

594
595
596
597
598
599
	if (*callbacks_p)
	{
		while ((*callbacks_p)->next)
			callbacks_p = &((*callbacks_p)->next);
		callbacks_p = &((*callbacks_p)->next);
	}
oharboe's avatar
oharboe committed
600

601
602
603
604
	(*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
605

606
607
608
609
610
611
612
	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
613

614
615
616
617
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
618

619
620
621
622
623
624
	if (*callbacks_p)
	{
		while ((*callbacks_p)->next)
			callbacks_p = &((*callbacks_p)->next);
		callbacks_p = &((*callbacks_p)->next);
	}
oharboe's avatar
oharboe committed
625

626
627
628
629
	(*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
630

631
632
633
634
635
636
637
638
639
	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
640

641
642
	(*callbacks_p)->priv = priv;
	(*callbacks_p)->next = NULL;
oharboe's avatar
oharboe committed
643

644
645
646
647
648
649
650
	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
651

652
653
654
655
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
656

657
658
659
660
661
662
663
664
665
666
667
668
669
	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
670

671
672
673
674
675
676
677
	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
678

679
680
681
682
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
683

684
685
686
687
688
689
690
691
692
693
694
695
696
	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
697

698
699
700
701
702
703
704
	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
705

706
707
708
709
710
711
712
	if (event == TARGET_EVENT_HALTED)
	{
		/* execute early halted first */
		target_call_event_callbacks(target, TARGET_EVENT_EARLY_HALTED);
	}


713
714
	LOG_DEBUG("target event %i (%s)",
			  event,
715
			  Jim_Nvp_value2name_simple( nvp_target_event, event )->name );
oharboe's avatar
oharboe committed
716

717
	target_handle_event( target, event );
718

719
720
721
722
723
724
	while (callback)
	{
		next_callback = callback->next;
		callback->callback(target, event, callback->priv);
		callback = next_callback;
	}
oharboe's avatar
oharboe committed
725

726
727
728
	return ERROR_OK;
}

729
static int target_call_timer_callbacks_check_time(int checktime)
730
731
732
733
734
{
	target_timer_callback_t *callback = target_timer_callbacks;
	target_timer_callback_t *next_callback;
	struct timeval now;

oharboe's avatar
   
oharboe committed
735
736
	keep_alive();

737
	gettimeofday(&now, NULL);
oharboe's avatar
oharboe committed
738

739
740
741
	while (callback)
	{
		next_callback = callback->next;
oharboe's avatar
oharboe committed
742

743
744
745
		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)))
746
		{
747
			if(callback->callback != NULL)
748
			{
749
750
				callback->callback(callback->priv);
				if (callback->periodic)
751
				{
752
753
754
755
756
757
758
759
760
					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;
					}
761
				}
762
				else
763
764
765
766
767
				{
					int retval;
					if((retval = target_unregister_timer_callback(callback->callback, callback->priv)) != ERROR_OK)
						return retval;
				}
768
769
			}
		}
oharboe's avatar
oharboe committed
770

771
772
		callback = next_callback;
	}
oharboe's avatar
oharboe committed
773

774
775
776
	return ERROR_OK;
}

oharboe's avatar
oharboe committed
777
int target_call_timer_callbacks(void)
778
779
780
781
782
{
	return target_call_timer_callbacks_check_time(1);
}

/* invoke periodic callbacks immediately */
oharboe's avatar
oharboe committed
783
int target_call_timer_callbacks_now(void)
784
{
oharboe's avatar
   
oharboe committed
785
	return target_call_timer_callbacks_check_time(0);
786
787
}

788
789
790
791
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
792

793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
	/* 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
812

813
814
815
	/* only allocate multiples of 4 byte */
	if (size % 4)
	{
816
		LOG_ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
817
818
		size = CEIL(size, 4);
	}
oharboe's avatar
oharboe committed
819

820
821
822
823
824
825
826
827
828
829
	/* 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
830

831
832
833
834
835
836
	/* 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
837

838
		LOG_DEBUG("allocating new working area");
oharboe's avatar
oharboe committed
839

840
841
842
843
844
845
846
847
		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
848

849
850
		if (free_size < size)
		{
851
			LOG_WARNING("not enough working area available(requested %d, free %d)", size, free_size);
852
853
			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
		}
oharboe's avatar
oharboe committed
854

855
856
857
858
		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
859

860
861
		if (target->backup_working_area)
		{
862
			int retval;
863
			new_wa->backup = malloc(new_wa->size);
864
865
866
867
868
869
			if((retval = target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup)) != ERROR_OK)
			{
				free(new_wa->backup);
				free(new_wa);
				return retval;
			}
870
871
872
873
874
		}
		else
		{
			new_wa->backup = NULL;
		}
oharboe's avatar
oharboe committed
875

876
877
878
		/* put new entry in list */
		*p = new_wa;
	}
oharboe's avatar
oharboe committed
879

880
881
882
	/* mark as used, and return the new (reused) area */
	new_wa->free = 0;
	*area = new_wa;
oharboe's avatar
oharboe committed
883

884
885
	/* user pointer */
	new_wa->user = area;
oharboe's avatar
oharboe committed
886

887
888
889
	return ERROR_OK;
}

oharboe's avatar
   
oharboe committed
890
int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
891
892
893
{
	if (area->free)
		return ERROR_OK;
oharboe's avatar
oharboe committed
894

oharboe's avatar
   
oharboe committed
895
	if (restore&&target->backup_working_area)
896
897
898
899
900
	{
		int retval;
		if((retval = target->type->write_memory(target, area->address, 4, area->size / 4, area->backup)) != ERROR_OK)
			return retval;
	}
oharboe's avatar
oharboe committed
901

902
	area->free = 1;
oharboe's avatar
oharboe committed
903

904
905
906
	/* mark user pointer invalid */
	*area->user = NULL;
	area->user = NULL;
oharboe's avatar
oharboe committed
907

908
909
910
	return ERROR_OK;
}

oharboe's avatar
   
oharboe committed
911
912
913
914
915
int target_free_working_area(struct target_s *target, working_area_t *area)
{
	return target_free_working_area_restore(target, area, 1);
}

916
917
918
919
/* free resources and restore memory, if restoring memory fails,
 * free up resources anyway
 */
void target_free_all_working_areas_restore(struct target_s *target, int restore)
920
921
922
923
924
925
{
	working_area_t *c = target->working_areas;

	while (c)
	{
		working_area_t *next = c->next;
oharboe's avatar
   
oharboe committed
926
		target_free_working_area_restore(target, c, restore);
oharboe's avatar
oharboe committed
927

928
929
		if (c->backup)
			free(c->backup);
oharboe's avatar
oharboe committed
930

931
		free(c);
oharboe's avatar
oharboe committed
932

933
934
		c = next;
	}
oharboe's avatar
oharboe committed
935

936
937
938
	target->working_areas = NULL;
}

939
void target_free_all_working_areas(struct target_s *target)
oharboe's avatar
   
oharboe committed
940
{
941
	target_free_all_working_areas_restore(target, 1);
oharboe's avatar
   
oharboe committed
942
943
}

944
945
int target_register_commands(struct command_context_s *cmd_ctx)
{
946

oharboe's avatar
oharboe committed
947
948
949
	register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, "change the current command line target (one parameter) or lists targets (with no parameter)");
	register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "translate a virtual address into a physical address");
	register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "profiling samples the CPU PC");
950

951
	register_jim(cmd_ctx, "target", jim_target, "configure target" );
952

953

954
	/* script procedures */
955
956
	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");
957
958
959
960
961
962
963
964
	return ERROR_OK;
}

int target_arch_state(struct target_s *target)
{
	int retval;
	if (target==NULL)
	{
965
		LOG_USER("No target has been configured");
966
967
		return ERROR_OK;
	}
oharboe's avatar
oharboe committed
968

969
	LOG_USER("target state: %s",
970
		 Jim_Nvp_value2name_simple(nvp_target_state,target->state)->name);
oharboe's avatar
oharboe committed
971

972
973
	if (target->state!=TARGET_HALTED)
		return ERROR_OK;
oharboe's avatar
oharboe committed
974

975
976
977
978
	retval=target->type->arch_state(target);
	return retval;
}

oharboe's avatar
oharboe committed
979
980
/* Single aligned words are guaranteed to use 16 or 32 bit access
 * mode respectively, otherwise data is handled as quickly as
981
982
983
984
985
 * possible
 */
int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
{
	int retval;
986
987
	LOG_DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);

988
989
990
991
992
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
oharboe's avatar
oharboe committed
993

994
	if ((address + size - 1) < address)
995
996
997
998
999
	{
		/* GDB can request this when e.g. PC is 0xfffffffc*/
		LOG_ERROR("address+size wrapped(0x%08x, 0x%08x)", address, size);
		return ERROR_FAIL;
	}
oharboe's avatar
oharboe committed
1000

For faster browsing, not all history is shown. View entire blame