target.c 121 KB
Newer Older
1
2
3
4
/***************************************************************************
 *   Copyright (C) 2005 by Dominic Rath                                    *
 *   Dominic.Rath@gmx.de                                                   *
 *                                                                         *
5
 *   Copyright (C) 2007-2009 Øyvind 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
 *   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 "target.h"
37
#include "target_type.h"
38
#include "target_request.h"
39
40
41
42
#include "time_support.h"
#include "register.h"
#include "trace.h"
#include "image.h"
43
44
45
#include "jtag.h"


46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
static int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);

static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_test_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
static int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
static int handle_fast_load_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
70

71
static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
72
static int jim_mcrmrc(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
73
static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
74
static int jim_target(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
75

76
77
78
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);

79
/* targets */
80
81
82
83
84
85
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;
86
extern target_type_t fa526_target;
87
extern target_type_t feroceon_target;
88
extern target_type_t dragonite_target;
89
90
extern target_type_t xscale_target;
extern target_type_t cortexm3_target;
91
extern target_type_t cortexa8_target;
oharboe's avatar
oharboe committed
92
extern target_type_t arm11_target;
ntfreak's avatar
ntfreak committed
93
extern target_type_t mips_m4k_target;
94
extern target_type_t avr_target;
95
96
97
98
99
100
101
102
103

target_type_t *target_types[] =
{
	&arm7tdmi_target,
	&arm9tdmi_target,
	&arm920t_target,
	&arm720t_target,
	&arm966e_target,
	&arm926ejs_target,
104
	&fa526_target,
105
	&feroceon_target,
106
	&dragonite_target,
107
108
	&xscale_target,
	&cortexm3_target,
109
	&cortexa8_target,
oharboe's avatar
oharboe committed
110
	&arm11_target,
ntfreak's avatar
ntfreak committed
111
	&mips_m4k_target,
112
	&avr_target,
113
114
115
	NULL,
};

116
target_t *all_targets = NULL;
117
118
119
target_event_callback_t *target_event_callbacks = NULL;
target_timer_callback_t *target_timer_callbacks = NULL;

120
121
122
123
124
125
126
127
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 }
128
129
};

130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
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 }
};

145
const char *target_strerror_safe(int err)
146
147
148
{
	const Jim_Nvp *n;

149
	n = Jim_Nvp_value2name_simple(nvp_error_target, err);
zwelch's avatar
zwelch committed
150
	if (n->name == NULL) {
151
152
153
154
155
156
		return "unknown";
	} else {
		return n->name;
	}
}

157
static const Jim_Nvp nvp_target_event[] = {
158
159
	{ .value = TARGET_EVENT_OLD_gdb_program_config , .name = "old-gdb_program_config" },
	{ .value = TARGET_EVENT_OLD_pre_resume         , .name = "old-pre_resume" },
160

161
	{ .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
162
163
164
165
166
	{ .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" },

167
168
169
	{ .name = "gdb-start", .value = TARGET_EVENT_GDB_START },
	{ .name = "gdb-end", .value = TARGET_EVENT_GDB_END },

170
	/* 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
	{ .value = TARGET_EVENT_EXAMINE_START, .name = "examine-start" },
186
	{ .value = TARGET_EVENT_EXAMINE_END, .name = "examine-end" },
187

188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
	{ .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" },

	{ .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 }
205
206
};

207
208
209
210
211
212
213
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 },
214
215
};

216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
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 },
231
	{ .name = "le",     .value = TARGET_LITTLE_ENDIAN },
232
233
234
	{ .name = NULL,     .value = -1 },
};

235
236
237
238
239
240
241
242
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 },
};

243
244
245
246
247
248
249
250
251
252
253
254
const char *
target_state_name( target_t *t )
{
	const char *cp;
	cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
	if( !cp ){
		LOG_ERROR("Invalid target state: %d", (int)(t->state));
		cp = "(*BUG*unknown*BUG*)";
	}
	return cp;
}

255
/* determine the number of the new target */
256
static int new_target_number(void)
257
258
259
260
261
262
263
{
	target_t *t;
	int x;

	/* number is 0 based */
	x = -1;
	t = all_targets;
zwelch's avatar
zwelch committed
264
265
	while (t) {
		if (x < t->target_number) {
266
267
268
269
			x = t->target_number;
		}
		t = t->next;
	}
zwelch's avatar
zwelch committed
270
	return x + 1;
271
272
}

273
274
/* read a uint32_t from a buffer in target memory endianness */
uint32_t target_buffer_get_u32(target_t *target, const uint8_t *buffer)
275
276
277
278
279
280
281
{
	if (target->endianness == TARGET_LITTLE_ENDIAN)
		return le_to_h_u32(buffer);
	else
		return be_to_h_u32(buffer);
}

zwelch's avatar
zwelch committed
282
283
/* read a uint16_t from a buffer in target memory endianness */
uint16_t target_buffer_get_u16(target_t *target, const uint8_t *buffer)
284
285
286
287
288
289
290
{
	if (target->endianness == TARGET_LITTLE_ENDIAN)
		return le_to_h_u16(buffer);
	else
		return be_to_h_u16(buffer);
}

291
292
/* read a uint8_t from a buffer in target memory endianness */
uint8_t target_buffer_get_u8(target_t *target, const uint8_t *buffer)
293
294
295
296
{
	return *buffer & 0x0ff;
}

297
298
/* write a uint32_t to a buffer in target memory endianness */
void target_buffer_set_u32(target_t *target, uint8_t *buffer, uint32_t value)
299
300
301
302
303
304
305
{
	if (target->endianness == TARGET_LITTLE_ENDIAN)
		h_u32_to_le(buffer, value);
	else
		h_u32_to_be(buffer, value);
}

zwelch's avatar
zwelch committed
306
307
/* write a uint16_t to a buffer in target memory endianness */
void target_buffer_set_u16(target_t *target, uint8_t *buffer, uint16_t value)
308
309
310
311
312
313
314
{
	if (target->endianness == TARGET_LITTLE_ENDIAN)
		h_u16_to_le(buffer, value);
	else
		h_u16_to_be(buffer, value);
}

315
316
/* write a uint8_t to a buffer in target memory endianness */
void target_buffer_set_u8(target_t *target, uint8_t *buffer, uint8_t value)
317
318
319
320
{
	*buffer = value;
}

321
322
323
324
325
326
327
328
329
330
331
332
333
/* return a pointer to a configured target; id is name or number */
target_t *get_target(const char *id)
{
	target_t *target;

	/* try as tcltarget name */
	for (target = all_targets; target; target = target->next) {
		if (target->cmd_name == NULL)
			continue;
		if (strcmp(id, target->cmd_name) == 0)
			return target;
	}

334
335
	/* It's OK to remove this fallback sometime after August 2010 or so */

336
	/* no match, try as number */
337
338
	unsigned num;
	if (parse_uint(id, &num) != ERROR_OK)
339
340
341
		return NULL;

	for (target = all_targets; target; target = target->next) {
342
343
344
		if (target->target_number == (int)num) {
			LOG_WARNING("use '%s' as target identifier, not '%u'",
					target->cmd_name, num);
345
			return target;
346
		}
347
348
349
350
351
	}

	return NULL;
}

352
/* returns a pointer to the n-th configured target */
353
static target_t *get_target_by_num(int num)
354
{
355
	target_t *target = all_targets;
356

zwelch's avatar
zwelch committed
357
358
	while (target) {
		if (target->target_number == num) {
359
			return target;
360
		}
361
362
363
364
365
366
367
368
369
		target = target->next;
	}

	return NULL;
}

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
370

371
372
	if (target == NULL)
	{
373
		LOG_ERROR("BUG: current_target out of bounds");
374
375
376
		exit(-1);
	}

oharboe's avatar
oharboe committed
377
	return target;
378
379
}

380
381
int target_poll(struct target_s *target)
{
382
383
	int retval;

384
	/* We can't poll until after examine */
385
	if (!target_was_examined(target))
386
387
388
389
	{
		/* Fail silently lest we pollute the log */
		return ERROR_FAIL;
	}
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412

	retval = target->type->poll(target);
	if (retval != ERROR_OK)
		return retval;

	if (target->halt_issued)
	{
		if (target->state == TARGET_HALTED)
		{
			target->halt_issued = false;
		} else
		{
			long long t = timeval_ms() - target->halt_issued_time;
			if (t>1000)
			{
				target->halt_issued = false;
				LOG_INFO("Halt timed out, wake up GDB.");
				target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
			}
		}
	}

	return ERROR_OK;
413
414
415
416
}

int target_halt(struct target_s *target)
{
417
	int retval;
418
	/* We can't poll until after examine */
419
	if (!target_was_examined(target))
420
421
422
423
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
424
425
426
427
428
429
430
431
432

	retval = target->type->halt(target);
	if (retval != ERROR_OK)
		return retval;

	target->halt_issued = true;
	target->halt_issued_time = timeval_ms();

	return ERROR_OK;
433
434
}

435
int target_resume(struct target_s *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
436
{
437
	int retval;
oharboe's avatar
oharboe committed
438

439
	/* We can't poll until after examine */
440
	if (!target_was_examined(target))
441
442
443
444
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
oharboe's avatar
oharboe committed
445

oharboe's avatar
oharboe committed
446
447
448
449
	/* 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.
	 */
450
451
	if ((retval = target->type->resume(target, current, address, handle_breakpoints, debug_execution)) != ERROR_OK)
		return retval;
oharboe's avatar
oharboe committed
452

453
	return retval;
454
455
}

oharboe's avatar
oharboe committed
456
int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mode reset_mode)
457
458
{
	char buf[100];
459
	int retval;
460
	Jim_Nvp *n;
461
	n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
zwelch's avatar
zwelch committed
462
	if (n->name == NULL) {
463
464
465
466
		LOG_ERROR("invalid reset mode");
		return ERROR_FAIL;
	}

467
468
469
470
	/* disable polling during reset to make reset event scripts
	 * more predictable, i.e. dr/irscan & pathmove in events will
	 * not have JTAG operations injected into the middle of a sequence.
	 */
471
472
473
	bool save_poll = jtag_poll_get_enabled();

	jtag_poll_set_enabled(false);
474

475
476
	sprintf(buf, "ocd_process_reset %s", n->name);
	retval = Jim_Eval(interp, buf);
477

478
	jtag_poll_set_enabled(save_poll);
479

zwelch's avatar
zwelch committed
480
	if (retval != JIM_OK) {
481
		Jim_PrintErrorMessage(interp);
482
483
		return ERROR_FAIL;
	}
484
485

	/* We want any events to be processed before the prompt */
486
	retval = target_call_timer_callbacks_now();
487

488
	return retval;
489
490
}

491
static int default_virt2phys(struct target_s *target, uint32_t virtual, uint32_t *physical)
492
493
494
495
496
497
498
{
	*physical = virtual;
	return ERROR_OK;
}

static int default_mmu(struct target_s *target, int *enabled)
{
499
500
501
502
503
504
505
	LOG_ERROR("Not implemented.");
	return ERROR_FAIL;
}

static int default_has_mmu(struct target_s *target, bool *has_mmu)
{
	*has_mmu = true;
506
507
508
	return ERROR_OK;
}

509
static int default_examine(struct target_s *target)
510
{
511
	target_set_examined(target);
512
513
514
	return ERROR_OK;
}

zwelch's avatar
zwelch committed
515
516
517
518
519
int target_examine_one(struct target_s *target)
{
	return target->type->examine(target);
}

zwelch's avatar
zwelch committed
520
521
522
523
524
525
526
527
528
529
530
531
static int jtag_enable_callback(enum jtag_event event, void *priv)
{
	target_t *target = priv;

	if (event != JTAG_TAP_EVENT_ENABLE || !target->tap->enabled)
		return ERROR_OK;

	jtag_unregister_event_callback(jtag_enable_callback, target);
	return target_examine_one(target);
}


zwelch's avatar
zwelch committed
532
/* Targets that correctly implement init + examine, i.e.
533
 * no communication with target during init:
oharboe's avatar
oharboe committed
534
535
 *
 * XScale
536
 */
ntfreak's avatar
ntfreak committed
537
int target_examine(void)
538
539
{
	int retval = ERROR_OK;
zwelch's avatar
zwelch committed
540
541
542
	target_t *target;

	for (target = all_targets; target; target = target->next)
543
	{
zwelch's avatar
zwelch committed
544
545
546
547
		/* defer examination, but don't skip it */
		if (!target->tap->enabled) {
			jtag_register_event_callback(jtag_enable_callback,
					target);
zwelch's avatar
zwelch committed
548
			continue;
zwelch's avatar
zwelch committed
549
		}
zwelch's avatar
zwelch committed
550
		if ((retval = target_examine_one(target)) != ERROR_OK)
551
552
553
554
			return retval;
	}
	return retval;
}
zwelch's avatar
zwelch committed
555
556
557
558
const char *target_get_name(struct target_s *target)
{
	return target->type->name;
}
559

560
static int target_write_memory_imp(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
561
{
562
	if (!target_was_examined(target))
563
564
565
566
567
568
569
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
	return target->type->write_memory_imp(target, address, size, count, buffer);
}

570
static int target_read_memory_imp(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
571
{
572
	if (!target_was_examined(target))
573
574
575
576
577
578
579
580
581
	{
		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)
{
582
	if (!target_was_examined(target))
583
584
585
586
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}
587
588
589
590
591
	if (!target->type->soft_reset_halt_imp) {
		LOG_ERROR("Target %s does not support soft_reset_halt",
				target->cmd_name);
		return ERROR_FAIL;
	}
592
593
594
	return target->type->soft_reset_halt_imp(target);
}

595
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, uint32_t entry_point, uint32_t exit_point, int timeout_ms, void *arch_info)
596
{
597
	if (!target_was_examined(target))
598
599
600
601
602
603
	{
		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);
}
604

zwelch's avatar
zwelch committed
605
int target_read_memory(struct target_s *target,
606
		uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
zwelch's avatar
zwelch committed
607
608
609
610
{
	return target->type->read_memory(target, address, size, count, buffer);
}

611
612
613
614
615
616
int target_read_phys_memory(struct target_s *target,
		uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
	return target->type->read_phys_memory(target, address, size, count, buffer);
}

zwelch's avatar
zwelch committed
617
int target_write_memory(struct target_s *target,
618
		uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
zwelch's avatar
zwelch committed
619
620
621
{
	return target->type->write_memory(target, address, size, count, buffer);
}
622
623
624
625
626
627
628

int target_write_phys_memory(struct target_s *target,
		uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
	return target->type->write_phys_memory(target, address, size, count, buffer);
}

zwelch's avatar
zwelch committed
629
int target_bulk_write_memory(struct target_s *target,
630
		uint32_t address, uint32_t count, uint8_t *buffer)
zwelch's avatar
zwelch committed
631
632
633
634
{
	return target->type->bulk_write_memory(target, address, count, buffer);
}

635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
int target_add_breakpoint(struct target_s *target,
		struct breakpoint_s *breakpoint)
{
	return target->type->add_breakpoint(target, breakpoint);
}
int target_remove_breakpoint(struct target_s *target,
		struct breakpoint_s *breakpoint)
{
	return target->type->remove_breakpoint(target, breakpoint);
}

int target_add_watchpoint(struct target_s *target,
		struct watchpoint_s *watchpoint)
{
	return target->type->add_watchpoint(target, watchpoint);
}
int target_remove_watchpoint(struct target_s *target,
		struct watchpoint_s *watchpoint)
{
	return target->type->remove_watchpoint(target, watchpoint);
}
zwelch's avatar
zwelch committed
656

zwelch's avatar
zwelch committed
657
658
659
660
661
int target_get_gdb_reg_list(struct target_s *target,
		struct reg_s **reg_list[], int *reg_list_size)
{
	return target->type->get_gdb_reg_list(target, reg_list, reg_list_size);
}
zwelch's avatar
zwelch committed
662
int target_step(struct target_s *target,
663
		int current, uint32_t address, int handle_breakpoints)
zwelch's avatar
zwelch committed
664
665
666
667
{
	return target->type->step(target, current, address, handle_breakpoints);
}

zwelch's avatar
zwelch committed
668

zwelch's avatar
zwelch committed
669
670
671
int target_run_algorithm(struct target_s *target,
		int num_mem_params, mem_param_t *mem_params,
		int num_reg_params, reg_param_t *reg_param,
672
		uint32_t entry_point, uint32_t exit_point,
zwelch's avatar
zwelch committed
673
674
675
676
677
678
679
		int timeout_ms, void *arch_info)
{
	return target->type->run_algorithm(target,
			num_mem_params, mem_params, num_reg_params, reg_param,
			entry_point, exit_point, timeout_ms, arch_info);
}

680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
/// @returns @c true if the target has been examined.
bool target_was_examined(struct target_s *target)
{
	return target->type->examined;
}
/// Sets the @c examined flag for the given target.
void target_set_examined(struct target_s *target)
{
	target->type->examined = true;
}
// Reset the @c examined flag for the given target.
void target_reset_examined(struct target_s *target)
{
	target->type->examined = false;
}

zwelch's avatar
zwelch committed
696

697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724

static int default_mrc(struct target_s *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t *value)
{
	LOG_ERROR("Not implemented");
	return ERROR_FAIL;
}

static int default_mcr(struct target_s *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t value)
{
	LOG_ERROR("Not implemented");
	return ERROR_FAIL;
}

static int arm_cp_check(struct target_s *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm)
{
	/* basic check */
	if (!target_was_examined(target))
	{
		LOG_ERROR("Target not examined yet");
		return ERROR_FAIL;
	}

	if ((cpnum <0) || (cpnum > 15))
	{
		LOG_ERROR("Illegal co-processor %d", cpnum);
		return ERROR_FAIL;
	}

725
	if (op1 > 7)
726
727
728
729
730
	{
		LOG_ERROR("Illegal op1");
		return ERROR_FAIL;
	}

731
	if (op2 > 7)
732
733
734
735
736
	{
		LOG_ERROR("Illegal op2");
		return ERROR_FAIL;
	}

737
	if (CRn > 15)
738
739
740
741
742
	{
		LOG_ERROR("Illegal CRn");
		return ERROR_FAIL;
	}

743
	if (CRm > 15)
744
745
746
747
748
	{
		LOG_ERROR("Illegal CRm");
		return ERROR_FAIL;
	}

749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
	return ERROR_OK;
}

int target_mrc(struct target_s *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t *value)
{
	int retval;

	retval = arm_cp_check(target, cpnum, op1, op2, CRn, CRm);
	if (retval != ERROR_OK)
		return retval;

	return target->type->mrc(target, cpnum, op1, op2, CRn, CRm, value);
}

int target_mcr(struct target_s *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t value)
{
	int retval;

	retval = arm_cp_check(target, cpnum, op1, op2, CRn, CRm);
	if (retval != ERROR_OK)
		return retval;

	return target->type->mcr(target, cpnum, op1, op2, CRn, CRm, value);
}

774
775
static int default_read_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
776
777
778
779
780
781
782
783
784
785
786
	int retval;
	bool mmu;
	retval = target->type->has_mmu(target, &mmu);
	if (retval != ERROR_OK)
		return retval;
	if (mmu)
	{
		LOG_ERROR("Not implemented");
		return ERROR_FAIL;
	}
	return target_read_memory(target, address, size, count, buffer);
787
788
789
790
}

static int default_write_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
791
792
793
794
795
796
797
798
799
800
801
	int retval;
	bool mmu;
	retval = target->type->has_mmu(target, &mmu);
	if (retval != ERROR_OK)
		return retval;
	if (mmu)
	{
		LOG_ERROR("Not implemented");
		return ERROR_FAIL;
	}
	return target_write_memory(target, address, size, count, buffer);
802
803
}

804

805
806
int target_init(struct command_context_s *cmd_ctx)
{
807
	target_t *target = all_targets;
808
	int retval;
oharboe's avatar
oharboe committed
809

810
811
	while (target)
	{
812
		target_reset_examined(target);
813
814
815
816
		if (target->type->examine == NULL)
		{
			target->type->examine = default_examine;
		}
oharboe's avatar
oharboe committed
817

818
		if ((retval = target->type->init_target(cmd_ctx, target)) != ERROR_OK)
819
		{
zwelch's avatar
zwelch committed
820
			LOG_ERROR("target '%s' init failed", target_get_name(target));
821
			return retval;
822
		}
oharboe's avatar
oharboe committed
823

824
825
826
827
828
		/* Set up default functions if none are provided by target */
		if (target->type->virt2phys == NULL)
		{
			target->type->virt2phys = default_virt2phys;
		}
829
830
831

		if (target->type->read_phys_memory == NULL)
		{
832
			target->type->read_phys_memory = default_read_phys_memory;
833
834
835
836
		}

		if (target->type->write_phys_memory == NULL)
		{
837
			target->type->write_phys_memory = default_write_phys_memory;
838
839
		}

840
841
842
		if (target->type->mcr == NULL)
		{
			target->type->mcr = default_mcr;
843
844
845
846
847
848
849
850
		} else
		{
			/* FIX! multiple targets will generally register global commands
			 * multiple times. Only register this one if *one* of the
			 * targets need the command. Hmm... make it a command on the
			 * Jim Tcl target object?
			 */
			register_jim(cmd_ctx, "mcr", jim_mcrmrc, "write coprocessor <cpnum> <op1> <op2> <CRn> <CRm> <value>");
851
852
853
854
855
		}

		if (target->type->mrc == NULL)
		{
			target->type->mrc = default_mrc;
856
857
858
		} else
		{
			register_jim(cmd_ctx, "mrc", jim_mcrmrc, "read coprocessor <cpnum> <op1> <op2> <CRn> <CRm>");
859
860
861
		}


862
863
864
865
866
867
868
869
870
871
872
873
		/* 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;

874
875
876
877
		if (target->type->mmu == NULL)
		{
			target->type->mmu = default_mmu;
		}
878
879
880
881
		if (target->type->has_mmu == NULL)
		{
			target->type->has_mmu = default_has_mmu;
		}
882
883
		target = target->next;
	}
oharboe's avatar
oharboe committed
884

885
	if (all_targets)
886
	{
zwelch's avatar
zwelch committed
887
		if ((retval = target_register_user_commands(cmd_ctx)) != ERROR_OK)
888
			return retval;
zwelch's avatar
zwelch committed
889
		if ((retval = target_register_timer_callback(handle_target, 100, 1, NULL)) != ERROR_OK)
890
			return retval;
891
	}
oharboe's avatar
oharboe committed
892

893
894
895
896
897
898
	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
899

900
901
902
903
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
904

905
906
907
908
909
910
	if (*callbacks_p)
	{
		while ((*callbacks_p)->next)
			callbacks_p = &((*callbacks_p)->next);
		callbacks_p = &((*callbacks_p)->next);
	}
oharboe's avatar
oharboe committed
911

912
913
914
915
	(*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
916

917
918
919
920
921
922
923
	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
924

925
926
927
928
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
929

930
931
932
933
934
935
	if (*callbacks_p)
	{
		while ((*callbacks_p)->next)
			callbacks_p = &((*callbacks_p)->next);
		callbacks_p = &((*callbacks_p)->next);
	}
oharboe's avatar
oharboe committed
936

937
938
939
940
	(*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
941

942
943
944
945
946
947
948
949
950
	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
951

952
953
	(*callbacks_p)->priv = priv;
	(*callbacks_p)->next = NULL;
oharboe's avatar
oharboe committed
954

955
956
957
958
959
960
961
	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
962

963
964
965
966
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
967

968
969
970
971
972
973
974
975
976
977
978
979
980
	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
981

982
983
984
985
986
987
988
	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
989

990
991
992
993
	if (callback == NULL)
	{
		return ERROR_INVALID_ARGUMENTS;
	}
oharboe's avatar
oharboe committed
994

995
996
997
998
999
1000
	while (c)
	{
		target_timer_callback_t *next = c->next;
		if ((c->callback == callback) && (c->priv == priv))
		{
			*p = next;
For faster browsing, not all history is shown. View entire blame