server: tcl_notifications command
[openocd.git] / src / target / target.h
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007-2010 √ėyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * Copyright (C) 2008 by Spencer Oliver *
9 * spen@spen-soft.co.uk *
10 * *
11 * Copyright (C) 2011 by Broadcom Corporation *
12 * Evan Hunter - ehunter@broadcom.com *
13 * *
14 * Copyright (C) ST-Ericsson SA 2011 *
15 * michel.jaouen@stericsson.com : smp minimum support *
16 * *
17 * This program is free software; you can redistribute it and/or modify *
18 * it under the terms of the GNU General Public License as published by *
19 * the Free Software Foundation; either version 2 of the License, or *
20 * (at your option) any later version. *
21 * *
22 * This program is distributed in the hope that it will be useful, *
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
25 * GNU General Public License for more details. *
26 * *
27 * You should have received a copy of the GNU General Public License *
28 * along with this program; if not, write to the *
29 * Free Software Foundation, Inc., *
30 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
31 ***************************************************************************/
32
33 #ifndef TARGET_H
34 #define TARGET_H
35
36 #include <helper/list.h>
37
38 struct reg;
39 struct trace;
40 struct command_context;
41 struct breakpoint;
42 struct watchpoint;
43 struct mem_param;
44 struct reg_param;
45 struct target_list;
46 struct gdb_fileio_info;
47
48 /*
49 * TARGET_UNKNOWN = 0: we don't know anything about the target yet
50 * TARGET_RUNNING = 1: the target is executing user code
51 * TARGET_HALTED = 2: the target is not executing code, and ready to talk to the
52 * debugger. on an xscale it means that the debug handler is executing
53 * TARGET_RESET = 3: the target is being held in reset (only a temporary state,
54 * not sure how this is used with all the recent changes)
55 * TARGET_DEBUG_RUNNING = 4: the target is running, but it is executing code on
56 * behalf of the debugger (e.g. algorithm for flashing)
57 *
58 * also see: target_state_name();
59 */
60
61 enum target_state {
62 TARGET_UNKNOWN = 0,
63 TARGET_RUNNING = 1,
64 TARGET_HALTED = 2,
65 TARGET_RESET = 3,
66 TARGET_DEBUG_RUNNING = 4,
67 };
68
69 enum nvp_assert {
70 NVP_DEASSERT,
71 NVP_ASSERT,
72 };
73
74 enum target_reset_mode {
75 RESET_UNKNOWN = 0,
76 RESET_RUN = 1, /* reset and let target run */
77 RESET_HALT = 2, /* reset and halt target out of reset */
78 RESET_INIT = 3, /* reset and halt target out of reset, then run init script */
79 };
80
81 enum target_debug_reason {
82 DBG_REASON_DBGRQ = 0,
83 DBG_REASON_BREAKPOINT = 1,
84 DBG_REASON_WATCHPOINT = 2,
85 DBG_REASON_WPTANDBKPT = 3,
86 DBG_REASON_SINGLESTEP = 4,
87 DBG_REASON_NOTHALTED = 5,
88 DBG_REASON_EXIT = 6,
89 DBG_REASON_UNDEFINED = 7,
90 };
91
92 enum target_endianness {
93 TARGET_ENDIAN_UNKNOWN = 0,
94 TARGET_BIG_ENDIAN = 1, TARGET_LITTLE_ENDIAN = 2
95 };
96
97 struct working_area {
98 uint32_t address;
99 uint32_t size;
100 bool free;
101 uint8_t *backup;
102 struct working_area **user;
103 struct working_area *next;
104 };
105
106 struct gdb_service {
107 struct target *target;
108 /* field for smp display */
109 /* element 0 coreid currently displayed ( 1 till n) */
110 /* element 1 coreid to be displayed at next resume 1 till n 0 means resume
111 * all cores core displayed */
112 int32_t core[2];
113 };
114
115 /* target back off timer */
116 struct backoff_timer {
117 int times;
118 int count;
119 };
120
121 /* split target registers into multiple class */
122 enum target_register_class {
123 REG_CLASS_ALL,
124 REG_CLASS_GENERAL,
125 };
126
127 /* target_type.h contains the full definition of struct target_type */
128 struct target {
129 struct target_type *type; /* target type definition (name, access functions) */
130 const char *cmd_name; /* tcl Name of target */
131 int target_number; /* DO NOT USE! field to be removed in 2010 */
132 struct jtag_tap *tap; /* where on the jtag chain is this */
133 int32_t coreid; /* which device on the TAP? */
134
135 /**
136 * Indicates whether this target has been examined.
137 *
138 * Do @b not access this field directly, use target_was_examined()
139 * or target_set_examined().
140 */
141 bool examined;
142
143 /**
144 * true if the target is currently running a downloaded
145 * "algorithm" instead of arbitrary user code. OpenOCD code
146 * invoking algorithms is trusted to maintain correctness of
147 * any cached state (e.g. for flash status), which arbitrary
148 * code will have no reason to know about.
149 */
150 bool running_alg;
151
152 struct target_event_action *event_action;
153
154 int reset_halt; /* attempt resetting the CPU into the halted mode? */
155 uint32_t working_area; /* working area (initialised RAM). Evaluated
156 * upon first allocation from virtual/physical address. */
157 bool working_area_virt_spec; /* virtual address specified? */
158 uint32_t working_area_virt; /* virtual address */
159 bool working_area_phys_spec; /* virtual address specified? */
160 uint32_t working_area_phys; /* physical address */
161 uint32_t working_area_size; /* size in bytes */
162 uint32_t backup_working_area; /* whether the content of the working area has to be preserved */
163 struct working_area *working_areas;/* list of allocated working areas */
164 enum target_debug_reason debug_reason;/* reason why the target entered debug state */
165 enum target_endianness endianness; /* target endianness */
166 /* also see: target_state_name() */
167 enum target_state state; /* the current backend-state (running, halted, ...) */
168 struct reg_cache *reg_cache; /* the first register cache of the target (core regs) */
169 struct breakpoint *breakpoints; /* list of breakpoints */
170 struct watchpoint *watchpoints; /* list of watchpoints */
171 struct trace *trace_info; /* generic trace information */
172 struct debug_msg_receiver *dbgmsg; /* list of debug message receivers */
173 uint32_t dbg_msg_enabled; /* debug message status */
174 void *arch_info; /* architecture specific information */
175 struct target *next; /* next target in list */
176
177 int display; /* display async info in telnet session. Do not display
178 * lots of halted/resumed info when stepping in debugger. */
179 bool halt_issued; /* did we transition to halted state? */
180 long long halt_issued_time; /* Note time when halt was issued */
181
182 bool dbgbase_set; /* By default the debug base is not set */
183 uint32_t dbgbase; /* Really a Cortex-A specific option, but there is no
184 * system in place to support target specific options
185 * currently. */
186 struct rtos *rtos; /* Instance of Real Time Operating System support */
187 bool rtos_auto_detect; /* A flag that indicates that the RTOS has been specified as "auto"
188 * and must be detected when symbols are offered */
189 struct backoff_timer backoff;
190 int smp; /* add some target attributes for smp support */
191 struct target_list *head;
192 /* the gdb service is there in case of smp, we have only one gdb server
193 * for all smp target
194 * the target attached to the gdb is changing dynamically by changing
195 * gdb_service->target pointer */
196 struct gdb_service *gdb_service;
197
198 /* file-I/O information for host to do syscall */
199 struct gdb_fileio_info *fileio_info;
200 };
201
202 struct target_list {
203 struct target *target;
204 struct target_list *next;
205 };
206
207 struct gdb_fileio_info {
208 char *identifier;
209 uint32_t param_1;
210 uint32_t param_2;
211 uint32_t param_3;
212 uint32_t param_4;
213 };
214
215 /** Returns the instance-specific name of the specified target. */
216 static inline const char *target_name(struct target *target)
217 {
218 return target->cmd_name;
219 }
220
221 const char *debug_reason_name(struct target *t);
222
223 enum target_event {
224
225 /* allow GDB to do stuff before others handle the halted event,
226 * this is in lieu of defining ordering of invocation of events,
227 * which would be more complicated
228 *
229 * Telling GDB to halt does not mean that the target stopped running,
230 * simply that we're dropping out of GDB's waiting for step or continue.
231 *
232 * This can be useful when e.g. detecting power dropout.
233 */
234 TARGET_EVENT_GDB_HALT,
235 TARGET_EVENT_HALTED, /* target entered debug state from normal execution or reset */
236 TARGET_EVENT_RESUMED, /* target resumed to normal execution */
237 TARGET_EVENT_RESUME_START,
238 TARGET_EVENT_RESUME_END,
239
240 TARGET_EVENT_GDB_START, /* debugger started execution (step/run) */
241 TARGET_EVENT_GDB_END, /* debugger stopped execution (step/run) */
242
243 TARGET_EVENT_RESET_START,
244 TARGET_EVENT_RESET_ASSERT_PRE,
245 TARGET_EVENT_RESET_ASSERT, /* C code uses this instead of SRST */
246 TARGET_EVENT_RESET_ASSERT_POST,
247 TARGET_EVENT_RESET_DEASSERT_PRE,
248 TARGET_EVENT_RESET_DEASSERT_POST,
249 TARGET_EVENT_RESET_HALT_PRE,
250 TARGET_EVENT_RESET_HALT_POST,
251 TARGET_EVENT_RESET_WAIT_PRE,
252 TARGET_EVENT_RESET_WAIT_POST,
253 TARGET_EVENT_RESET_INIT,
254 TARGET_EVENT_RESET_END,
255
256 TARGET_EVENT_DEBUG_HALTED, /* target entered debug state, but was executing on behalf of the debugger */
257 TARGET_EVENT_DEBUG_RESUMED, /* target resumed to execute on behalf of the debugger */
258
259 TARGET_EVENT_EXAMINE_START,
260 TARGET_EVENT_EXAMINE_END,
261
262 TARGET_EVENT_GDB_ATTACH,
263 TARGET_EVENT_GDB_DETACH,
264
265 TARGET_EVENT_GDB_FLASH_ERASE_START,
266 TARGET_EVENT_GDB_FLASH_ERASE_END,
267 TARGET_EVENT_GDB_FLASH_WRITE_START,
268 TARGET_EVENT_GDB_FLASH_WRITE_END,
269 };
270
271 struct target_event_action {
272 enum target_event event;
273 struct Jim_Interp *interp;
274 struct Jim_Obj *body;
275 int has_percent;
276 struct target_event_action *next;
277 };
278
279 bool target_has_event_action(struct target *target, enum target_event event);
280
281 struct target_event_callback {
282 int (*callback)(struct target *target, enum target_event event, void *priv);
283 void *priv;
284 struct target_event_callback *next;
285 };
286
287 struct target_reset_callback {
288 struct list_head list;
289 void *priv;
290 int (*callback)(struct target *target, enum target_reset_mode reset_mode, void *priv);
291 };
292
293 struct target_timer_callback {
294 int (*callback)(void *priv);
295 int time_ms;
296 int periodic;
297 struct timeval when;
298 void *priv;
299 struct target_timer_callback *next;
300 };
301
302 int target_register_commands(struct command_context *cmd_ctx);
303 int target_examine(void);
304
305 int target_register_event_callback(
306 int (*callback)(struct target *target,
307 enum target_event event, void *priv),
308 void *priv);
309 int target_unregister_event_callback(
310 int (*callback)(struct target *target,
311 enum target_event event, void *priv),
312 void *priv);
313
314 int target_register_reset_callback(
315 int (*callback)(struct target *target,
316 enum target_reset_mode reset_mode, void *priv),
317 void *priv);
318 int target_unregister_reset_callback(
319 int (*callback)(struct target *target,
320 enum target_reset_mode reset_mode, void *priv),
321 void *priv);
322
323 /* Poll the status of the target, detect any error conditions and report them.
324 *
325 * Also note that this fn will clear such error conditions, so a subsequent
326 * invocation will then succeed.
327 *
328 * These error conditions can be "sticky" error conditions. E.g. writing
329 * to memory could be implemented as an open loop and if memory writes
330 * fails, then a note is made of it, the error is sticky, but the memory
331 * write loop still runs to completion. This improves performance in the
332 * normal case as there is no need to verify that every single write succeed,
333 * yet it is possible to detect error conditions.
334 */
335 int target_poll(struct target *target);
336 int target_resume(struct target *target, int current, uint32_t address,
337 int handle_breakpoints, int debug_execution);
338 int target_halt(struct target *target);
339 int target_call_event_callbacks(struct target *target, enum target_event event);
340 int target_call_reset_callbacks(struct target *target, enum target_reset_mode reset_mode);
341
342 /**
343 * The period is very approximate, the callback can happen much more often
344 * or much more rarely than specified
345 */
346 int target_register_timer_callback(int (*callback)(void *priv),
347 int time_ms, int periodic, void *priv);
348 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv);
349 int target_call_timer_callbacks(void);
350 /**
351 * Invoke this to ensure that e.g. polling timer callbacks happen before
352 * a synchronous command completes.
353 */
354 int target_call_timer_callbacks_now(void);
355
356 struct target *get_current_target(struct command_context *cmd_ctx);
357 struct target *get_target(const char *id);
358
359 /**
360 * Get the target type name.
361 *
362 * This routine is a wrapper for the target->type->name field.
363 * Note that this is not an instance-specific name for his target.
364 */
365 const char *target_type_name(struct target *target);
366
367 /**
368 * Examine the specified @a target, letting it perform any
369 * Initialisation that requires JTAG access.
370 *
371 * This routine is a wrapper for target->type->examine.
372 */
373 int target_examine_one(struct target *target);
374
375 /** @returns @c true if target_set_examined() has been called. */
376 static inline bool target_was_examined(struct target *target)
377 {
378 return target->examined;
379 }
380
381 /** Sets the @c examined flag for the given target. */
382 /** Use in target->type->examine() after one-time setup is done. */
383 static inline void target_set_examined(struct target *target)
384 {
385 target->examined = true;
386 }
387
388 /**
389 * Add the @a breakpoint for @a target.
390 *
391 * This routine is a wrapper for target->type->add_breakpoint.
392 */
393 int target_add_breakpoint(struct target *target,
394 struct breakpoint *breakpoint);
395 /**
396 * Add the @a ContextID breakpoint for @a target.
397 *
398 * This routine is a wrapper for target->type->add_context_breakpoint.
399 */
400 int target_add_context_breakpoint(struct target *target,
401 struct breakpoint *breakpoint);
402 /**
403 * Add the @a ContextID & IVA breakpoint for @a target.
404 *
405 * This routine is a wrapper for target->type->add_hybrid_breakpoint.
406 */
407 int target_add_hybrid_breakpoint(struct target *target,
408 struct breakpoint *breakpoint);
409 /**
410 * Remove the @a breakpoint for @a target.
411 *
412 * This routine is a wrapper for target->type->remove_breakpoint.
413 */
414
415 int target_remove_breakpoint(struct target *target,
416 struct breakpoint *breakpoint);
417 /**
418 * Add the @a watchpoint for @a target.
419 *
420 * This routine is a wrapper for target->type->add_watchpoint.
421 */
422 int target_add_watchpoint(struct target *target,
423 struct watchpoint *watchpoint);
424 /**
425 * Remove the @a watchpoint for @a target.
426 *
427 * This routine is a wrapper for target->type->remove_watchpoint.
428 */
429 int target_remove_watchpoint(struct target *target,
430 struct watchpoint *watchpoint);
431
432 /**
433 * Find out the just hit @a watchpoint for @a target.
434 *
435 * This routine is a wrapper for target->type->hit_watchpoint.
436 */
437 int target_hit_watchpoint(struct target *target,
438 struct watchpoint **watchpoint);
439
440 /**
441 * Obtain the registers for GDB.
442 *
443 * This routine is a wrapper for target->type->get_gdb_reg_list.
444 */
445 int target_get_gdb_reg_list(struct target *target,
446 struct reg **reg_list[], int *reg_list_size,
447 enum target_register_class reg_class);
448
449 /**
450 * Step the target.
451 *
452 * This routine is a wrapper for target->type->step.
453 */
454 int target_step(struct target *target,
455 int current, uint32_t address, int handle_breakpoints);
456 /**
457 * Run an algorithm on the @a target given.
458 *
459 * This routine is a wrapper for target->type->run_algorithm.
460 */
461 int target_run_algorithm(struct target *target,
462 int num_mem_params, struct mem_param *mem_params,
463 int num_reg_params, struct reg_param *reg_param,
464 uint32_t entry_point, uint32_t exit_point,
465 int timeout_ms, void *arch_info);
466
467 /**
468 * Starts an algorithm in the background on the @a target given.
469 *
470 * This routine is a wrapper for target->type->start_algorithm.
471 */
472 int target_start_algorithm(struct target *target,
473 int num_mem_params, struct mem_param *mem_params,
474 int num_reg_params, struct reg_param *reg_params,
475 uint32_t entry_point, uint32_t exit_point,
476 void *arch_info);
477
478 /**
479 * Wait for an algorithm on the @a target given.
480 *
481 * This routine is a wrapper for target->type->wait_algorithm.
482 */
483 int target_wait_algorithm(struct target *target,
484 int num_mem_params, struct mem_param *mem_params,
485 int num_reg_params, struct reg_param *reg_params,
486 uint32_t exit_point, int timeout_ms,
487 void *arch_info);
488
489 /**
490 * This routine is a wrapper for asynchronous algorithms.
491 *
492 */
493 int target_run_flash_async_algorithm(struct target *target,
494 const uint8_t *buffer, uint32_t count, int block_size,
495 int num_mem_params, struct mem_param *mem_params,
496 int num_reg_params, struct reg_param *reg_params,
497 uint32_t buffer_start, uint32_t buffer_size,
498 uint32_t entry_point, uint32_t exit_point,
499 void *arch_info);
500
501 /**
502 * Read @a count items of @a size bytes from the memory of @a target at
503 * the @a address given.
504 *
505 * This routine is a wrapper for target->type->read_memory.
506 */
507 int target_read_memory(struct target *target,
508 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
509 int target_read_phys_memory(struct target *target,
510 uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
511 /**
512 * Write @a count items of @a size bytes to the memory of @a target at
513 * the @a address given. @a address must be aligned to @a size
514 * in target memory.
515 *
516 * The endianness is the same in the host and target memory for this
517 * function.
518 *
519 * \todo TODO:
520 * Really @a buffer should have been defined as "const void *" and
521 * @a buffer should have been aligned to @a size in the host memory.
522 *
523 * This is not enforced via e.g. assert's today and e.g. the
524 * target_write_buffer fn breaks this assumption.
525 *
526 * This routine is wrapper for target->type->write_memory.
527 */
528 int target_write_memory(struct target *target,
529 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
530 int target_write_phys_memory(struct target *target,
531 uint32_t address, uint32_t size, uint32_t count, const uint8_t *buffer);
532
533 /*
534 * Write to target memory using the virtual address.
535 *
536 * Note that this fn is used to implement software breakpoints. Targets
537 * can implement support for software breakpoints to memory marked as read
538 * only by making this fn write to ram even if it is read only(MMU or
539 * MPUs).
540 *
541 * It is sufficient to implement for writing a single word(16 or 32 in
542 * ARM32/16 bit case) to write the breakpoint to ram.
543 *
544 * The target should also take care of "other things" to make sure that
545 * software breakpoints can be written using this function. E.g.
546 * when there is a separate instruction and data cache, this fn must
547 * make sure that the instruction cache is synced up to the potential
548 * code change that can happen as a result of the memory write(typically
549 * by invalidating the cache).
550 *
551 * The high level wrapper fn in target.c will break down this memory write
552 * request to multiple write requests to the target driver to e.g. guarantee
553 * that writing 4 bytes to an aligned address happens with a single 32 bit
554 * write operation, thus making this fn suitable to e.g. write to special
555 * peripheral registers which do not support byte operations.
556 */
557 int target_write_buffer(struct target *target,
558 uint32_t address, uint32_t size, const uint8_t *buffer);
559 int target_read_buffer(struct target *target,
560 uint32_t address, uint32_t size, uint8_t *buffer);
561 int target_checksum_memory(struct target *target,
562 uint32_t address, uint32_t size, uint32_t *crc);
563 int target_blank_check_memory(struct target *target,
564 uint32_t address, uint32_t size, uint32_t *blank);
565 int target_wait_state(struct target *target, enum target_state state, int ms);
566
567 /**
568 * Obtain file-I/O information from target for GDB to do syscall.
569 *
570 * This routine is a wrapper for target->type->get_gdb_fileio_info.
571 */
572 int target_get_gdb_fileio_info(struct target *target, struct gdb_fileio_info *fileio_info);
573
574 /**
575 * Pass GDB file-I/O response to target after finishing host syscall.
576 *
577 * This routine is a wrapper for target->type->gdb_fileio_end.
578 */
579 int target_gdb_fileio_end(struct target *target, int retcode, int fileio_errno, bool ctrl_c);
580
581
582
583 /** Return the *name* of this targets current state */
584 const char *target_state_name(struct target *target);
585
586 /** Return the *name* of a target event enumeration value */
587 const char *target_event_name(enum target_event event);
588
589 /** Return the *name* of a target reset reason enumeration value */
590 const char *target_reset_mode_name(enum target_reset_mode reset_mode);
591
592 /* DANGER!!!!!
593 *
594 * if "area" passed in to target_alloc_working_area() points to a memory
595 * location that goes out of scope (e.g. a pointer on the stack), then
596 * the caller of target_alloc_working_area() is responsible for invoking
597 * target_free_working_area() before "area" goes out of scope.
598 *
599 * target_free_all_working_areas() will NULL out the "area" pointer
600 * upon resuming or resetting the CPU.
601 *
602 */
603 int target_alloc_working_area(struct target *target,
604 uint32_t size, struct working_area **area);
605 /* Same as target_alloc_working_area, except that no error is logged
606 * when ERROR_TARGET_RESOURCE_NOT_AVAILABLE is returned.
607 *
608 * This allows the calling code to *try* to allocate target memory
609 * and have a fallback to another behaviour(slower?).
610 */
611 int target_alloc_working_area_try(struct target *target,
612 uint32_t size, struct working_area **area);
613 int target_free_working_area(struct target *target, struct working_area *area);
614 void target_free_all_working_areas(struct target *target);
615 uint32_t target_get_working_area_avail(struct target *target);
616
617 extern struct target *all_targets;
618
619 uint64_t target_buffer_get_u64(struct target *target, const uint8_t *buffer);
620 uint32_t target_buffer_get_u32(struct target *target, const uint8_t *buffer);
621 uint32_t target_buffer_get_u24(struct target *target, const uint8_t *buffer);
622 uint16_t target_buffer_get_u16(struct target *target, const uint8_t *buffer);
623 void target_buffer_set_u64(struct target *target, uint8_t *buffer, uint64_t value);
624 void target_buffer_set_u32(struct target *target, uint8_t *buffer, uint32_t value);
625 void target_buffer_set_u24(struct target *target, uint8_t *buffer, uint32_t value);
626 void target_buffer_set_u16(struct target *target, uint8_t *buffer, uint16_t value);
627
628 void target_buffer_get_u64_array(struct target *target, const uint8_t *buffer, uint32_t count, uint64_t *dstbuf);
629 void target_buffer_get_u32_array(struct target *target, const uint8_t *buffer, uint32_t count, uint32_t *dstbuf);
630 void target_buffer_get_u16_array(struct target *target, const uint8_t *buffer, uint32_t count, uint16_t *dstbuf);
631 void target_buffer_set_u64_array(struct target *target, uint8_t *buffer, uint32_t count, const uint64_t *srcbuf);
632 void target_buffer_set_u32_array(struct target *target, uint8_t *buffer, uint32_t count, const uint32_t *srcbuf);
633 void target_buffer_set_u16_array(struct target *target, uint8_t *buffer, uint32_t count, const uint16_t *srcbuf);
634
635 int target_read_u64(struct target *target, uint64_t address, uint64_t *value);
636 int target_read_u32(struct target *target, uint32_t address, uint32_t *value);
637 int target_read_u16(struct target *target, uint32_t address, uint16_t *value);
638 int target_read_u8(struct target *target, uint32_t address, uint8_t *value);
639 int target_write_u64(struct target *target, uint64_t address, uint64_t value);
640 int target_write_u32(struct target *target, uint32_t address, uint32_t value);
641 int target_write_u16(struct target *target, uint32_t address, uint16_t value);
642 int target_write_u8(struct target *target, uint32_t address, uint8_t value);
643
644 /* Issues USER() statements with target state information */
645 int target_arch_state(struct target *target);
646
647 void target_handle_event(struct target *t, enum target_event e);
648
649 #define ERROR_TARGET_INVALID (-300)
650 #define ERROR_TARGET_INIT_FAILED (-301)
651 #define ERROR_TARGET_TIMEOUT (-302)
652 #define ERROR_TARGET_NOT_HALTED (-304)
653 #define ERROR_TARGET_FAILURE (-305)
654 #define ERROR_TARGET_UNALIGNED_ACCESS (-306)
655 #define ERROR_TARGET_DATA_ABORT (-307)
656 #define ERROR_TARGET_RESOURCE_NOT_AVAILABLE (-308)
657 #define ERROR_TARGET_TRANSLATION_FAULT (-309)
658 #define ERROR_TARGET_NOT_RUNNING (-310)
659 #define ERROR_TARGET_NOT_EXAMINED (-311)
660
661 extern bool get_target_reset_nag(void);
662
663 #endif /* TARGET_H */

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