target.c 98.5 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
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
 *   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);

61

62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
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);
84
int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
85
86
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);
87
static int jim_target( Jim_Interp *interp, int argc, Jim_Obj *const *argv);
88

89
90
91
92
93
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);



94
/* targets */
95
96
97
98
99
100
101
102
103
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
104
extern target_type_t arm11_target;
ntfreak's avatar
ntfreak committed
105
extern target_type_t mips_m4k_target;
106
107
108
109
110
111
112
113
114
115
116
117

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
118
	&arm11_target,
ntfreak's avatar
ntfreak committed
119
	&mips_m4k_target,
120
121
122
	NULL,
};

123
target_t *all_targets = NULL;
124
125
126
target_event_callback_t *target_event_callbacks = NULL;
target_timer_callback_t *target_timer_callbacks = NULL;

127
128
129
130
131
132
133
134
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 }
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
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;
	}
}

164
const Jim_Nvp nvp_target_event[] = {
165
166
	{ .value = TARGET_EVENT_OLD_gdb_program_config , .name = "old-gdb_program_config" },
	{ .value = TARGET_EVENT_OLD_pre_resume         , .name = "old-pre_resume" },
167

168

169
	{ .value = TARGET_EVENT_EARLY_HALTED, .name = "early-halted" },
170
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" },

	/* historical name */
176

177
	{ .value = TARGET_EVENT_RESET_START, .name = "reset-start" },
178
179
180
181
182
183
184
185
186

	{ .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" },
187
188
189
	{ .value = TARGET_EVENT_RESET_INIT , .name = "reset-init" },
	{ .value = TARGET_EVENT_RESET_END, .name = "reset-end" },

190
191
192
193
194
195




	{ .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
	{ .value = TARGET_EVENT_EXAMINE_START, .name = "examine-end" },
196

197

198
199
200
201
202
203
	{ .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" },

204

205
206
207
208
209
210
211
212
213
214
215
	{ .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 }
216
217
};

218
219
220
221
222
223
224
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 },
225
226
};

227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247

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 },
};

248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
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;
}
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291

/* 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;
}

292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
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);
}

312
313
314
315
316
317
/* read a u8 from a buffer in target memory endianness */
u8 target_buffer_get_u8(target_t *target, u8 *buffer)
{
	return *buffer & 0x0ff;
}

318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
/* 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);
}

336
337
338
339
340
341
/* write a u8 to a buffer in target memory endianness */
void target_buffer_set_u8(target_t *target, u8 *buffer, u8 value)
{
	*buffer = value;
}

342
343
344
/* returns a pointer to the n-th configured target */
target_t* get_target_by_num(int num)
{
345
	target_t *target = all_targets;
346

347
348
	while (target){
		if( target->target_number == num ){
349
			return target;
350
		}
351
352
353
354
355
356
357
358
		target = target->next;
	}

	return NULL;
}

int get_num_by_target(target_t *query_target)
{
359
	return query_target->target_number;
360
361
362
363
364
}

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
365

366
367
	if (target == NULL)
	{
368
		LOG_ERROR("BUG: current_target out of bounds");
369
370
371
		exit(-1);
	}

oharboe's avatar
oharboe committed
372
	return target;
373
374
375
}


376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
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)
{
400
	int retval;
oharboe's avatar
oharboe committed
401

402
403
404
405
406
407
	/* 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
408

oharboe's avatar
oharboe committed
409
410
411
412
	/* 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.
	 */
413
414
	if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
		return retval;
oharboe's avatar
oharboe committed
415

416
	return retval;
417
418
}

419

oharboe's avatar
oharboe committed
420
int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mode reset_mode)
421
422
{
	char buf[100];
423
	int retval;
424
425
426
427
428
429
430
431
	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 );
432
433
	retval = Jim_Eval( interp, buf );

434
435
	if(retval != JIM_OK) {
		Jim_PrintErrorMessage(interp);
436
437
		return ERROR_FAIL;
	}
438
439

	/* We want any events to be processed before the prompt */
440
	retval = target_call_timer_callbacks_now();
441

442
	return retval;
443
444
445
}


446
447
448
449
450
451
452
453
454
455
456
457
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;
}

458
static int default_examine(struct target_s *target)
459
{
460
	target->type->examined = 1;
461
462
463
464
	return ERROR_OK;
}


465
466
/* Targets that correctly implement init+examine, i.e.
 * no communication with target during init:
oharboe's avatar
oharboe committed
467
468
 *
 * XScale
469
 */
ntfreak's avatar
ntfreak committed
470
int target_examine(void)
471
472
{
	int retval = ERROR_OK;
473
	target_t *target = all_targets;
474
475
	while (target)
	{
476
		if ((retval = target->type->examine(target))!=ERROR_OK)
477
478
479
480
481
			return retval;
		target = target->next;
	}
	return retval;
}
482

483
484
485
486
487
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
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);
}
522

523
524
int target_init(struct command_context_s *cmd_ctx)
{
525
	target_t *target = all_targets;
526
	int retval;
oharboe's avatar
oharboe committed
527

528
529
	while (target)
	{
530
531
532
533
534
		target->type->examined = 0;
		if (target->type->examine == NULL)
		{
			target->type->examine = default_examine;
		}
oharboe's avatar
oharboe committed
535

536
537
		if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
		{
538
			LOG_ERROR("target '%s' init failed", target->type->name);
539
540
			exit(-1);
		}
oharboe's avatar
oharboe committed
541

542
543
544
545
546
		/* Set up default functions if none are provided by target */
		if (target->type->virt2phys == NULL)
		{
			target->type->virt2phys = default_virt2phys;
		}
547
548
549
550
551
552
553
554
555
556
557
558
559
		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
560

561
562
563
564
565
566
		if (target->type->mmu == NULL)
		{
			target->type->mmu = default_mmu;
		}
		target = target->next;
	}
oharboe's avatar
oharboe committed
567

568
	if (all_targets)
569
	{
570
571
572
573
		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;
574
	}
oharboe's avatar
oharboe committed
575

576
577
578
579
580
581
	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
582

583
584
585
586
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
587

588
589
590
591
592
593
	if (*callbacks_p)
	{
		while ((*callbacks_p)->next)
			callbacks_p = &((*callbacks_p)->next);
		callbacks_p = &((*callbacks_p)->next);
	}
oharboe's avatar
oharboe committed
594

595
596
597
598
	(*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
599

600
601
602
603
604
605
606
	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
607

608
609
610
611
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
612

613
614
615
616
617
618
	if (*callbacks_p)
	{
		while ((*callbacks_p)->next)
			callbacks_p = &((*callbacks_p)->next);
		callbacks_p = &((*callbacks_p)->next);
	}
oharboe's avatar
oharboe committed
619

620
621
622
623
	(*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
624

625
626
627
628
629
630
631
632
633
	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
634

635
636
	(*callbacks_p)->priv = priv;
	(*callbacks_p)->next = NULL;
oharboe's avatar
oharboe committed
637

638
639
640
641
642
643
644
	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
645

646
647
648
649
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
650

651
652
653
654
655
656
657
658
659
660
661
662
663
	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
664

665
666
667
668
669
670
671
	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
672

673
674
675
676
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
677

678
679
680
681
682
683
684
685
686
687
688
689
690
	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
691

692
693
694
695
696
697
698
	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
699

700
701
702
703
704
705
706
	if (event == TARGET_EVENT_HALTED)
	{
		/* execute early halted first */
		target_call_event_callbacks(target, TARGET_EVENT_EARLY_HALTED);
	}


707
708
	LOG_DEBUG("target event %i (%s)",
			  event,
709
			  Jim_Nvp_value2name_simple( nvp_target_event, event )->name );
oharboe's avatar
oharboe committed
710

711
	target_handle_event( target, event );
712

713
714
715
716
717
718
	while (callback)
	{
		next_callback = callback->next;
		callback->callback(target, event, callback->priv);
		callback = next_callback;
	}
oharboe's avatar
oharboe committed
719

720
721
722
	return ERROR_OK;
}

723
static int target_call_timer_callbacks_check_time(int checktime)
724
725
726
727
728
{
	target_timer_callback_t *callback = target_timer_callbacks;
	target_timer_callback_t *next_callback;
	struct timeval now;

oharboe's avatar
   
oharboe committed
729
730
	keep_alive();

731
	gettimeofday(&now, NULL);
oharboe's avatar
oharboe committed
732

733
734
735
	while (callback)
	{
		next_callback = callback->next;
oharboe's avatar
oharboe committed
736

737
738
739
		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)))
740
		{
741
			if(callback->callback != NULL)
742
			{
743
744
				callback->callback(callback->priv);
				if (callback->periodic)
745
				{
746
747
748
749
750
751
752
753
754
					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;
					}
755
				}
756
				else
757
758
759
760
761
				{
					int retval;
					if((retval = target_unregister_timer_callback(callback->callback, callback->priv)) != ERROR_OK)
						return retval;
				}
762
763
			}
		}
oharboe's avatar
oharboe committed
764

765
766
		callback = next_callback;
	}
oharboe's avatar
oharboe committed
767

768
769
770
	return ERROR_OK;
}

oharboe's avatar
oharboe committed
771
int target_call_timer_callbacks(void)
772
773
774
775
776
{
	return target_call_timer_callbacks_check_time(1);
}

/* invoke periodic callbacks immediately */
oharboe's avatar
oharboe committed
777
int target_call_timer_callbacks_now(void)
778
{
oharboe's avatar
   
oharboe committed
779
	return target_call_timer_callbacks_check_time(0);
780
781
}

782
783
784
785
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
786

787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
	/* 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
806

807
808
809
	/* only allocate multiples of 4 byte */
	if (size % 4)
	{
810
		LOG_ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
811
812
		size = CEIL(size, 4);
	}
oharboe's avatar
oharboe committed
813

814
815
816
817
818
819
820
821
822
823
	/* 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
824

825
826
827
828
829
830
	/* 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
831

832
		LOG_DEBUG("allocating new working area");
oharboe's avatar
oharboe committed
833

834
835
836
837
838
839
840
841
		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
842

843
844
		if (free_size < size)
		{
845
			LOG_WARNING("not enough working area available(requested %d, free %d)", size, free_size);
846
847
			return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
		}
oharboe's avatar
oharboe committed
848

849
850
851
852
		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
853

854
855
		if (target->backup_working_area)
		{
856
			int retval;
857
			new_wa->backup = malloc(new_wa->size);
858
859
860
861
862
863
			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;
			}
864
865
866
867
868
		}
		else
		{
			new_wa->backup = NULL;
		}
oharboe's avatar
oharboe committed
869

870
871
872
		/* put new entry in list */
		*p = new_wa;
	}
oharboe's avatar
oharboe committed
873

874
875
876
	/* mark as used, and return the new (reused) area */
	new_wa->free = 0;
	*area = new_wa;
oharboe's avatar
oharboe committed
877

878
879
	/* user pointer */
	new_wa->user = area;
oharboe's avatar
oharboe committed
880

881
882
883
	return ERROR_OK;
}

oharboe's avatar
   
oharboe committed
884
int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
885
886
887
{
	if (area->free)
		return ERROR_OK;
oharboe's avatar
oharboe committed
888

oharboe's avatar
   
oharboe committed
889
	if (restore&&target->backup_working_area)
890
891
892
893
894
	{
		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
895

896
	area->free = 1;
oharboe's avatar
oharboe committed
897

898
899
900
	/* mark user pointer invalid */
	*area->user = NULL;
	area->user = NULL;
oharboe's avatar
oharboe committed
901

902
903
904
	return ERROR_OK;
}

oharboe's avatar
   
oharboe committed
905
906
907
908
909
int target_free_working_area(struct target_s *target, working_area_t *area)
{
	return target_free_working_area_restore(target, area, 1);
}

910
911
912
913
/* 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)
914
915
916
917
918
919
{
	working_area_t *c = target->working_areas;

	while (c)
	{
		working_area_t *next = c->next;
oharboe's avatar
   
oharboe committed
920
		target_free_working_area_restore(target, c, restore);
oharboe's avatar
oharboe committed
921

922
923
		if (c->backup)
			free(c->backup);
oharboe's avatar
oharboe committed
924

925
		free(c);
oharboe's avatar
oharboe committed
926

927
928
		c = next;
	}
oharboe's avatar
oharboe committed
929

930
931
932
	target->working_areas = NULL;
}

933
void target_free_all_working_areas(struct target_s *target)
oharboe's avatar
   
oharboe committed
934
{
935
	target_free_all_working_areas_restore(target, 1);
oharboe's avatar
   
oharboe committed
936
937
}

938
939
int target_register_commands(struct command_context_s *cmd_ctx)
{
940

941
942
943
	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>");
944
	register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "PRELIMINARY! - profile <seconds> <gmon.out>");
945

946
	register_jim(cmd_ctx, "target", jim_target, "configure target" );
947

948

949
	/* script procedures */
950
951
	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");
952
953
954
955
956
957
958
959
	return ERROR_OK;
}

int target_arch_state(struct target_s *target)
{
	int retval;
	if (target==NULL)
	{
960
		LOG_USER("No target has been configured");
961
962
		return ERROR_OK;
	}
oharboe's avatar
oharboe committed
963

964
	LOG_USER("target state: %s",
965
		 Jim_Nvp_value2name_simple(nvp_target_state,target->state)->name);
oharboe's avatar
oharboe committed
966

967
968
	if (target->state!=TARGET_HALTED)
		return ERROR_OK;
oharboe's avatar
oharboe committed
969

970
971
972
973
	retval=target->type->arch_state(target);
	return retval;
}

oharboe's avatar
oharboe committed
974
975
/* Single aligned words are guaranteed to use 16 or 32 bit access
 * mode respectively, otherwise data is handled as quickly as
976
977
978
979
980
 * possible
 */
int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
{
	int retval;
981
982
	LOG_DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);

983
984
985
986
987
	if (!target->type->examined)
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
oharboe's avatar
oharboe committed
988

989
	if ((address + size - 1) < address)
990
991
992
993
994
	{
		/* 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
995

996
997
998
999
	if (((address % 2) == 0) && (size == 2))
	{
		return target->type->write_memory(target, address, 2, 1, buffer);
	}
oharboe's avatar
oharboe committed
1000

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