1 /***************************************************************************
2 * Copyright (C) 2008 by Spencer Oliver *
3 * spen@spen-soft.co.uk *
5 * Copyright (C) 2008 by David T.L. Wong *
7 * Copyright (C) 2009 by David N. Claffey <dnclaffey@gmail.com> *
9 * Copyright (C) 2011 by Drasko DRASKOVIC *
10 * drasko.draskovic@gmail.com *
12 * This program is free software; you can redistribute it and/or modify *
13 * it under the terms of the GNU General Public License as published by *
14 * the Free Software Foundation; either version 2 of the License, or *
15 * (at your option) any later version. *
17 * This program is distributed in the hope that it will be useful, *
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
20 * GNU General Public License for more details. *
22 * You should have received a copy of the GNU General Public License *
23 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
24 ***************************************************************************/
30 #include "breakpoints.h"
33 #include "mips32_dmaacc.h"
34 #include "target_type.h"
37 static void mips_m4k_enable_breakpoints(struct target
*target
);
38 static void mips_m4k_enable_watchpoints(struct target
*target
);
39 static int mips_m4k_set_breakpoint(struct target
*target
,
40 struct breakpoint
*breakpoint
);
41 static int mips_m4k_unset_breakpoint(struct target
*target
,
42 struct breakpoint
*breakpoint
);
43 static int mips_m4k_internal_restore(struct target
*target
, int current
,
44 uint32_t address
, int handle_breakpoints
,
46 static int mips_m4k_halt(struct target
*target
);
47 static int mips_m4k_bulk_write_memory(struct target
*target
, target_addr_t address
,
48 uint32_t count
, const uint8_t *buffer
);
50 static int mips_m4k_examine_debug_reason(struct target
*target
)
52 struct mips32_common
*mips32
= target_to_mips32(target
);
53 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
54 uint32_t break_status
;
57 if ((target
->debug_reason
!= DBG_REASON_DBGRQ
)
58 && (target
->debug_reason
!= DBG_REASON_SINGLESTEP
)) {
59 if (ejtag_info
->debug_caps
& EJTAG_DCR_IB
) {
60 /* get info about inst breakpoint support */
61 retval
= target_read_u32(target
,
62 ejtag_info
->ejtag_ibs_addr
, &break_status
);
63 if (retval
!= ERROR_OK
)
65 if (break_status
& 0x1f) {
66 /* we have halted on a breakpoint */
67 retval
= target_write_u32(target
,
68 ejtag_info
->ejtag_ibs_addr
, 0);
69 if (retval
!= ERROR_OK
)
71 target
->debug_reason
= DBG_REASON_BREAKPOINT
;
75 if (ejtag_info
->debug_caps
& EJTAG_DCR_DB
) {
76 /* get info about data breakpoint support */
77 retval
= target_read_u32(target
,
78 ejtag_info
->ejtag_dbs_addr
, &break_status
);
79 if (retval
!= ERROR_OK
)
81 if (break_status
& 0x1f) {
82 /* we have halted on a breakpoint */
83 retval
= target_write_u32(target
,
84 ejtag_info
->ejtag_dbs_addr
, 0);
85 if (retval
!= ERROR_OK
)
87 target
->debug_reason
= DBG_REASON_WATCHPOINT
;
95 static int mips_m4k_debug_entry(struct target
*target
)
97 struct mips32_common
*mips32
= target_to_mips32(target
);
98 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
100 mips32_save_context(target
);
102 /* make sure stepping disabled, SSt bit in CP0 debug register cleared */
103 mips_ejtag_config_step(ejtag_info
, 0);
105 /* make sure break unit configured */
106 mips32_configure_break_unit(target
);
108 /* attempt to find halt reason */
109 mips_m4k_examine_debug_reason(target
);
111 /* default to mips32 isa, it will be changed below if required */
112 mips32
->isa_mode
= MIPS32_ISA_MIPS32
;
114 if (ejtag_info
->impcode
& EJTAG_IMP_MIPS16
)
115 mips32
->isa_mode
= buf_get_u32(mips32
->core_cache
->reg_list
[MIPS32_PC
].value
, 0, 1);
117 LOG_DEBUG("entered debug state at PC 0x%" PRIx32
", target->state: %s",
118 buf_get_u32(mips32
->core_cache
->reg_list
[MIPS32_PC
].value
, 0, 32),
119 target_state_name(target
));
124 static struct target
*get_mips_m4k(struct target
*target
, int32_t coreid
)
126 struct target_list
*head
;
130 while (head
!= (struct target_list
*)NULL
) {
132 if ((curr
->coreid
== coreid
) && (curr
->state
== TARGET_HALTED
))
139 static int mips_m4k_halt_smp(struct target
*target
)
141 int retval
= ERROR_OK
;
142 struct target_list
*head
;
145 while (head
!= (struct target_list
*)NULL
) {
148 if ((curr
!= target
) && (curr
->state
!= TARGET_HALTED
))
149 ret
= mips_m4k_halt(curr
);
151 if (ret
!= ERROR_OK
) {
152 LOG_ERROR("halt failed target->coreid: %" PRId32
, curr
->coreid
);
160 static int update_halt_gdb(struct target
*target
)
162 int retval
= ERROR_OK
;
163 if (target
->gdb_service
->core
[0] == -1) {
164 target
->gdb_service
->target
= target
;
165 target
->gdb_service
->core
[0] = target
->coreid
;
166 retval
= mips_m4k_halt_smp(target
);
171 static int mips_m4k_poll(struct target
*target
)
173 int retval
= ERROR_OK
;
174 struct mips32_common
*mips32
= target_to_mips32(target
);
175 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
176 uint32_t ejtag_ctrl
= ejtag_info
->ejtag_ctrl
;
177 enum target_state prev_target_state
= target
->state
;
179 /* toggle to another core is done by gdb as follow */
180 /* maint packet J core_id */
182 /* the next polling trigger an halt event sent to gdb */
183 if ((target
->state
== TARGET_HALTED
) && (target
->smp
) &&
184 (target
->gdb_service
) &&
185 (target
->gdb_service
->target
== NULL
)) {
186 target
->gdb_service
->target
=
187 get_mips_m4k(target
, target
->gdb_service
->core
[1]);
188 target_call_event_callbacks(target
, TARGET_EVENT_HALTED
);
192 /* read ejtag control reg */
193 mips_ejtag_set_instr(ejtag_info
, EJTAG_INST_CONTROL
);
194 retval
= mips_ejtag_drscan_32(ejtag_info
, &ejtag_ctrl
);
195 if (retval
!= ERROR_OK
)
198 ejtag_info
->isa
= (ejtag_ctrl
& EJTAG_CTRL_DBGISA
) ? 1 : 0;
200 /* clear this bit before handling polling
201 * as after reset registers will read zero */
202 if (ejtag_ctrl
& EJTAG_CTRL_ROCC
) {
203 /* we have detected a reset, clear flag
204 * otherwise ejtag will not work */
205 ejtag_ctrl
= ejtag_info
->ejtag_ctrl
& ~EJTAG_CTRL_ROCC
;
207 mips_ejtag_set_instr(ejtag_info
, EJTAG_INST_CONTROL
);
208 retval
= mips_ejtag_drscan_32(ejtag_info
, &ejtag_ctrl
);
209 if (retval
!= ERROR_OK
)
211 LOG_DEBUG("Reset Detected");
214 /* check for processor halted */
215 if (ejtag_ctrl
& EJTAG_CTRL_BRKST
) {
216 if ((target
->state
!= TARGET_HALTED
)
217 && (target
->state
!= TARGET_DEBUG_RUNNING
)) {
218 if (target
->state
== TARGET_UNKNOWN
)
219 LOG_DEBUG("EJTAG_CTRL_BRKST already set during server startup.");
221 /* OpenOCD was was probably started on the board with EJTAG_CTRL_BRKST already set
222 * (maybe put on by HALT-ing the board in the previous session).
224 * Force enable debug entry for this session.
226 mips_ejtag_set_instr(ejtag_info
, EJTAG_INST_NORMALBOOT
);
227 target
->state
= TARGET_HALTED
;
228 retval
= mips_m4k_debug_entry(target
);
229 if (retval
!= ERROR_OK
)
233 ((prev_target_state
== TARGET_RUNNING
)
234 || (prev_target_state
== TARGET_RESET
))) {
235 retval
= update_halt_gdb(target
);
236 if (retval
!= ERROR_OK
)
239 target_call_event_callbacks(target
, TARGET_EVENT_HALTED
);
240 } else if (target
->state
== TARGET_DEBUG_RUNNING
) {
241 target
->state
= TARGET_HALTED
;
243 retval
= mips_m4k_debug_entry(target
);
244 if (retval
!= ERROR_OK
)
248 retval
= update_halt_gdb(target
);
249 if (retval
!= ERROR_OK
)
253 target_call_event_callbacks(target
, TARGET_EVENT_DEBUG_HALTED
);
256 target
->state
= TARGET_RUNNING
;
258 /* LOG_DEBUG("ctrl = 0x%08X", ejtag_ctrl); */
263 static int mips_m4k_halt(struct target
*target
)
265 struct mips32_common
*mips32
= target_to_mips32(target
);
266 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
268 LOG_DEBUG("target->state: %s", target_state_name(target
));
270 if (target
->state
== TARGET_HALTED
) {
271 LOG_DEBUG("target was already halted");
275 if (target
->state
== TARGET_UNKNOWN
)
276 LOG_WARNING("target was in unknown state when halt was requested");
278 if (target
->state
== TARGET_RESET
) {
279 if ((jtag_get_reset_config() & RESET_SRST_PULLS_TRST
) && jtag_get_srst()) {
280 LOG_ERROR("can't request a halt while in reset if nSRST pulls nTRST");
281 return ERROR_TARGET_FAILURE
;
283 /* we came here in a reset_halt or reset_init sequence
284 * debug entry was already prepared in mips_m4k_assert_reset()
286 target
->debug_reason
= DBG_REASON_DBGRQ
;
292 /* break processor */
293 mips_ejtag_enter_debug(ejtag_info
);
295 target
->debug_reason
= DBG_REASON_DBGRQ
;
300 static int mips_m4k_assert_reset(struct target
*target
)
302 struct mips_m4k_common
*mips_m4k
= target_to_m4k(target
);
303 struct mips_ejtag
*ejtag_info
= &mips_m4k
->mips32
.ejtag_info
;
305 /* TODO: apply hw reset signal in not examined state */
306 if (!(target_was_examined(target
))) {
307 LOG_WARNING("Reset is not asserted because the target is not examined.");
308 LOG_WARNING("Use a reset button or power cycle the target.");
309 return ERROR_TARGET_NOT_EXAMINED
;
312 LOG_DEBUG("target->state: %s",
313 target_state_name(target
));
315 enum reset_types jtag_reset_config
= jtag_get_reset_config();
317 /* some cores support connecting while srst is asserted
318 * use that mode is it has been configured */
320 bool srst_asserted
= false;
322 if (!(jtag_reset_config
& RESET_SRST_PULLS_TRST
) &&
323 (jtag_reset_config
& RESET_SRST_NO_GATING
)) {
324 jtag_add_reset(0, 1);
325 srst_asserted
= true;
329 /* EJTAG before v2.5/2.6 does not support EJTAGBOOT or NORMALBOOT */
330 if (ejtag_info
->ejtag_version
!= EJTAG_VERSION_20
) {
331 if (target
->reset_halt
) {
332 /* use hardware to catch reset */
333 mips_ejtag_set_instr(ejtag_info
, EJTAG_INST_EJTAGBOOT
);
335 mips_ejtag_set_instr(ejtag_info
, EJTAG_INST_NORMALBOOT
);
338 if (jtag_reset_config
& RESET_HAS_SRST
) {
339 /* here we should issue a srst only, but we may have to assert trst as well */
340 if (jtag_reset_config
& RESET_SRST_PULLS_TRST
)
341 jtag_add_reset(1, 1);
342 else if (!srst_asserted
)
343 jtag_add_reset(0, 1);
345 if (mips_m4k
->is_pic32mx
) {
346 LOG_DEBUG("Using MTAP reset to reset processor...");
348 /* use microchip specific MTAP reset */
349 mips_ejtag_set_instr(ejtag_info
, MTAP_SW_MTAP
);
350 mips_ejtag_set_instr(ejtag_info
, MTAP_COMMAND
);
352 mips_ejtag_drscan_8_out(ejtag_info
, MCHP_ASERT_RST
);
353 mips_ejtag_drscan_8_out(ejtag_info
, MCHP_DE_ASSERT_RST
);
354 mips_ejtag_set_instr(ejtag_info
, MTAP_SW_ETAP
);
356 /* use ejtag reset - not supported by all cores */
357 uint32_t ejtag_ctrl
= ejtag_info
->ejtag_ctrl
| EJTAG_CTRL_PRRST
| EJTAG_CTRL_PERRST
;
358 LOG_DEBUG("Using EJTAG reset (PRRST) to reset processor...");
359 mips_ejtag_set_instr(ejtag_info
, EJTAG_INST_CONTROL
);
360 mips_ejtag_drscan_32_out(ejtag_info
, ejtag_ctrl
);
364 target
->state
= TARGET_RESET
;
365 jtag_add_sleep(50000);
367 register_cache_invalidate(mips_m4k
->mips32
.core_cache
);
369 if (target
->reset_halt
) {
370 int retval
= target_halt(target
);
371 if (retval
!= ERROR_OK
)
378 static int mips_m4k_deassert_reset(struct target
*target
)
380 LOG_DEBUG("target->state: %s", target_state_name(target
));
382 /* deassert reset lines */
383 jtag_add_reset(0, 0);
388 static int mips_m4k_single_step_core(struct target
*target
)
390 struct mips32_common
*mips32
= target_to_mips32(target
);
391 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
393 /* configure single step mode */
394 mips_ejtag_config_step(ejtag_info
, 1);
396 /* disable interrupts while stepping */
397 mips32_enable_interrupts(target
, 0);
399 /* exit debug mode */
400 mips_ejtag_exit_debug(ejtag_info
);
402 mips_m4k_debug_entry(target
);
407 static int mips_m4k_restore_smp(struct target
*target
, uint32_t address
, int handle_breakpoints
)
409 int retval
= ERROR_OK
;
410 struct target_list
*head
;
414 while (head
!= (struct target_list
*)NULL
) {
417 if ((curr
!= target
) && (curr
->state
!= TARGET_RUNNING
)) {
418 /* resume current address , not in step mode */
419 ret
= mips_m4k_internal_restore(curr
, 1, address
,
420 handle_breakpoints
, 0);
422 if (ret
!= ERROR_OK
) {
423 LOG_ERROR("target->coreid :%" PRId32
" failed to resume at address :0x%" PRIx32
,
424 curr
->coreid
, address
);
433 static int mips_m4k_internal_restore(struct target
*target
, int current
,
434 uint32_t address
, int handle_breakpoints
, int debug_execution
)
436 struct mips32_common
*mips32
= target_to_mips32(target
);
437 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
438 struct breakpoint
*breakpoint
= NULL
;
441 if (target
->state
!= TARGET_HALTED
) {
442 LOG_WARNING("target not halted");
443 return ERROR_TARGET_NOT_HALTED
;
446 if (!debug_execution
) {
447 target_free_all_working_areas(target
);
448 mips_m4k_enable_breakpoints(target
);
449 mips_m4k_enable_watchpoints(target
);
452 /* current = 1: continue on current pc, otherwise continue at <address> */
454 buf_set_u32(mips32
->core_cache
->reg_list
[MIPS32_PC
].value
, 0, 32, address
);
455 mips32
->core_cache
->reg_list
[MIPS32_PC
].dirty
= 1;
456 mips32
->core_cache
->reg_list
[MIPS32_PC
].valid
= 1;
459 if (ejtag_info
->impcode
& EJTAG_IMP_MIPS16
)
460 buf_set_u32(mips32
->core_cache
->reg_list
[MIPS32_PC
].value
, 0, 1, mips32
->isa_mode
);
465 resume_pc
= buf_get_u32(mips32
->core_cache
->reg_list
[MIPS32_PC
].value
, 0, 32);
467 mips32_restore_context(target
);
469 /* the front-end may request us not to handle breakpoints */
470 if (handle_breakpoints
) {
471 /* Single step past breakpoint at current address */
472 breakpoint
= breakpoint_find(target
, resume_pc
);
474 LOG_DEBUG("unset breakpoint at " TARGET_ADDR_FMT
"",
475 breakpoint
->address
);
476 mips_m4k_unset_breakpoint(target
, breakpoint
);
477 mips_m4k_single_step_core(target
);
478 mips_m4k_set_breakpoint(target
, breakpoint
);
482 /* enable interrupts if we are running */
483 mips32_enable_interrupts(target
, !debug_execution
);
485 /* exit debug mode */
486 mips_ejtag_exit_debug(ejtag_info
);
487 target
->debug_reason
= DBG_REASON_NOTHALTED
;
489 /* registers are now invalid */
490 register_cache_invalidate(mips32
->core_cache
);
492 if (!debug_execution
) {
493 target
->state
= TARGET_RUNNING
;
494 target_call_event_callbacks(target
, TARGET_EVENT_RESUMED
);
495 LOG_DEBUG("target resumed at 0x%" PRIx32
"", resume_pc
);
497 target
->state
= TARGET_DEBUG_RUNNING
;
498 target_call_event_callbacks(target
, TARGET_EVENT_DEBUG_RESUMED
);
499 LOG_DEBUG("target debug resumed at 0x%" PRIx32
"", resume_pc
);
505 static int mips_m4k_resume(struct target
*target
, int current
,
506 target_addr_t address
, int handle_breakpoints
, int debug_execution
)
508 int retval
= ERROR_OK
;
510 /* dummy resume for smp toggle in order to reduce gdb impact */
511 if ((target
->smp
) && (target
->gdb_service
->core
[1] != -1)) {
512 /* simulate a start and halt of target */
513 target
->gdb_service
->target
= NULL
;
514 target
->gdb_service
->core
[0] = target
->gdb_service
->core
[1];
515 /* fake resume at next poll we play the target core[1], see poll*/
516 target_call_event_callbacks(target
, TARGET_EVENT_RESUMED
);
520 retval
= mips_m4k_internal_restore(target
, current
, address
,
524 if (retval
== ERROR_OK
&& target
->smp
) {
525 target
->gdb_service
->core
[0] = -1;
526 retval
= mips_m4k_restore_smp(target
, address
, handle_breakpoints
);
532 static int mips_m4k_step(struct target
*target
, int current
,
533 target_addr_t address
, int handle_breakpoints
)
535 /* get pointers to arch-specific information */
536 struct mips32_common
*mips32
= target_to_mips32(target
);
537 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
538 struct breakpoint
*breakpoint
= NULL
;
540 if (target
->state
!= TARGET_HALTED
) {
541 LOG_WARNING("target not halted");
542 return ERROR_TARGET_NOT_HALTED
;
545 /* current = 1: continue on current pc, otherwise continue at <address> */
547 buf_set_u32(mips32
->core_cache
->reg_list
[MIPS32_PC
].value
, 0, 32, address
);
548 mips32
->core_cache
->reg_list
[MIPS32_PC
].dirty
= 1;
549 mips32
->core_cache
->reg_list
[MIPS32_PC
].valid
= 1;
552 /* the front-end may request us not to handle breakpoints */
553 if (handle_breakpoints
) {
554 breakpoint
= breakpoint_find(target
,
555 buf_get_u32(mips32
->core_cache
->reg_list
[MIPS32_PC
].value
, 0, 32));
557 mips_m4k_unset_breakpoint(target
, breakpoint
);
560 /* restore context */
561 mips32_restore_context(target
);
563 /* configure single step mode */
564 mips_ejtag_config_step(ejtag_info
, 1);
566 target
->debug_reason
= DBG_REASON_SINGLESTEP
;
568 target_call_event_callbacks(target
, TARGET_EVENT_RESUMED
);
570 /* disable interrupts while stepping */
571 mips32_enable_interrupts(target
, 0);
573 /* exit debug mode */
574 mips_ejtag_exit_debug(ejtag_info
);
576 /* registers are now invalid */
577 register_cache_invalidate(mips32
->core_cache
);
579 LOG_DEBUG("target stepped ");
580 mips_m4k_debug_entry(target
);
583 mips_m4k_set_breakpoint(target
, breakpoint
);
585 target_call_event_callbacks(target
, TARGET_EVENT_HALTED
);
590 static void mips_m4k_enable_breakpoints(struct target
*target
)
592 struct breakpoint
*breakpoint
= target
->breakpoints
;
594 /* set any pending breakpoints */
596 if (breakpoint
->set
== 0)
597 mips_m4k_set_breakpoint(target
, breakpoint
);
598 breakpoint
= breakpoint
->next
;
602 static int mips_m4k_set_breakpoint(struct target
*target
,
603 struct breakpoint
*breakpoint
)
605 struct mips32_common
*mips32
= target_to_mips32(target
);
606 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
607 struct mips32_comparator
*comparator_list
= mips32
->inst_break_list
;
610 if (breakpoint
->set
) {
611 LOG_WARNING("breakpoint already set");
615 if (breakpoint
->type
== BKPT_HARD
) {
618 while (comparator_list
[bp_num
].used
&& (bp_num
< mips32
->num_inst_bpoints
))
620 if (bp_num
>= mips32
->num_inst_bpoints
) {
621 LOG_ERROR("Can not find free FP Comparator(bpid: %" PRIu32
")",
622 breakpoint
->unique_id
);
623 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
625 breakpoint
->set
= bp_num
+ 1;
626 comparator_list
[bp_num
].used
= 1;
627 comparator_list
[bp_num
].bp_value
= breakpoint
->address
;
629 /* EJTAG 2.0 uses 30bit IBA. First 2 bits are reserved.
630 * Warning: there is no IB ASID registers in 2.0.
631 * Do not set it! :) */
632 if (ejtag_info
->ejtag_version
== EJTAG_VERSION_20
)
633 comparator_list
[bp_num
].bp_value
&= 0xFFFFFFFC;
635 target_write_u32(target
, comparator_list
[bp_num
].reg_address
,
636 comparator_list
[bp_num
].bp_value
);
637 target_write_u32(target
, comparator_list
[bp_num
].reg_address
+
638 ejtag_info
->ejtag_ibm_offs
, 0x00000000);
639 target_write_u32(target
, comparator_list
[bp_num
].reg_address
+
640 ejtag_info
->ejtag_ibc_offs
, 1);
641 LOG_DEBUG("bpid: %" PRIu32
", bp_num %i bp_value 0x%" PRIx32
"",
642 breakpoint
->unique_id
,
643 bp_num
, comparator_list
[bp_num
].bp_value
);
644 } else if (breakpoint
->type
== BKPT_SOFT
) {
645 LOG_DEBUG("bpid: %" PRIu32
, breakpoint
->unique_id
);
646 if (breakpoint
->length
== 4) {
647 uint32_t verify
= 0xffffffff;
649 retval
= target_read_memory(target
, breakpoint
->address
, breakpoint
->length
, 1,
650 breakpoint
->orig_instr
);
651 if (retval
!= ERROR_OK
)
653 retval
= target_write_u32(target
, breakpoint
->address
, MIPS32_SDBBP(ejtag_info
->isa
));
654 if (retval
!= ERROR_OK
)
657 retval
= target_read_u32(target
, breakpoint
->address
, &verify
);
658 if (retval
!= ERROR_OK
)
660 if (verify
!= MIPS32_SDBBP(ejtag_info
->isa
)) {
661 LOG_ERROR("Unable to set 32-bit breakpoint at address " TARGET_ADDR_FMT
662 " - check that memory is read/writable", breakpoint
->address
);
666 uint16_t verify
= 0xffff;
668 retval
= target_read_memory(target
, breakpoint
->address
, breakpoint
->length
, 1,
669 breakpoint
->orig_instr
);
670 if (retval
!= ERROR_OK
)
672 retval
= target_write_u16(target
, breakpoint
->address
, MIPS16_SDBBP(ejtag_info
->isa
));
673 if (retval
!= ERROR_OK
)
676 retval
= target_read_u16(target
, breakpoint
->address
, &verify
);
677 if (retval
!= ERROR_OK
)
679 if (verify
!= MIPS16_SDBBP(ejtag_info
->isa
)) {
680 LOG_ERROR("Unable to set 16-bit breakpoint at address " TARGET_ADDR_FMT
681 " - check that memory is read/writable", breakpoint
->address
);
686 breakpoint
->set
= 20; /* Any nice value but 0 */
692 static int mips_m4k_unset_breakpoint(struct target
*target
,
693 struct breakpoint
*breakpoint
)
695 /* get pointers to arch-specific information */
696 struct mips32_common
*mips32
= target_to_mips32(target
);
697 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
698 struct mips32_comparator
*comparator_list
= mips32
->inst_break_list
;
701 if (!breakpoint
->set
) {
702 LOG_WARNING("breakpoint not set");
706 if (breakpoint
->type
== BKPT_HARD
) {
707 int bp_num
= breakpoint
->set
- 1;
708 if ((bp_num
< 0) || (bp_num
>= mips32
->num_inst_bpoints
)) {
709 LOG_DEBUG("Invalid FP Comparator number in breakpoint (bpid: %" PRIu32
")",
710 breakpoint
->unique_id
);
713 LOG_DEBUG("bpid: %" PRIu32
" - releasing hw: %d",
714 breakpoint
->unique_id
,
716 comparator_list
[bp_num
].used
= 0;
717 comparator_list
[bp_num
].bp_value
= 0;
718 target_write_u32(target
, comparator_list
[bp_num
].reg_address
+
719 ejtag_info
->ejtag_ibc_offs
, 0);
722 /* restore original instruction (kept in target endianness) */
723 LOG_DEBUG("bpid: %" PRIu32
, breakpoint
->unique_id
);
724 if (breakpoint
->length
== 4) {
725 uint32_t current_instr
;
727 /* check that user program has not modified breakpoint instruction */
728 retval
= target_read_memory(target
, breakpoint
->address
, 4, 1,
729 (uint8_t *)¤t_instr
);
730 if (retval
!= ERROR_OK
)
734 * target_read_memory() gets us data in _target_ endianess.
735 * If we want to use this data on the host for comparisons with some macros
736 * we must first transform it to _host_ endianess using target_buffer_get_u32().
738 current_instr
= target_buffer_get_u32(target
, (uint8_t *)¤t_instr
);
740 if (current_instr
== MIPS32_SDBBP(ejtag_info
->isa
)) {
741 retval
= target_write_memory(target
, breakpoint
->address
, 4, 1,
742 breakpoint
->orig_instr
);
743 if (retval
!= ERROR_OK
)
747 uint16_t current_instr
;
749 /* check that user program has not modified breakpoint instruction */
750 retval
= target_read_memory(target
, breakpoint
->address
, 2, 1,
751 (uint8_t *)¤t_instr
);
752 if (retval
!= ERROR_OK
)
754 current_instr
= target_buffer_get_u16(target
, (uint8_t *)¤t_instr
);
755 if (current_instr
== MIPS16_SDBBP(ejtag_info
->isa
)) {
756 retval
= target_write_memory(target
, breakpoint
->address
, 2, 1,
757 breakpoint
->orig_instr
);
758 if (retval
!= ERROR_OK
)
768 static int mips_m4k_add_breakpoint(struct target
*target
, struct breakpoint
*breakpoint
)
770 struct mips32_common
*mips32
= target_to_mips32(target
);
772 if (breakpoint
->type
== BKPT_HARD
) {
773 if (mips32
->num_inst_bpoints_avail
< 1) {
774 LOG_INFO("no hardware breakpoint available");
775 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
778 mips32
->num_inst_bpoints_avail
--;
781 return mips_m4k_set_breakpoint(target
, breakpoint
);
784 static int mips_m4k_remove_breakpoint(struct target
*target
,
785 struct breakpoint
*breakpoint
)
787 /* get pointers to arch-specific information */
788 struct mips32_common
*mips32
= target_to_mips32(target
);
790 if (target
->state
!= TARGET_HALTED
) {
791 LOG_WARNING("target not halted");
792 return ERROR_TARGET_NOT_HALTED
;
796 mips_m4k_unset_breakpoint(target
, breakpoint
);
798 if (breakpoint
->type
== BKPT_HARD
)
799 mips32
->num_inst_bpoints_avail
++;
804 static int mips_m4k_set_watchpoint(struct target
*target
,
805 struct watchpoint
*watchpoint
)
807 struct mips32_common
*mips32
= target_to_mips32(target
);
808 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
809 struct mips32_comparator
*comparator_list
= mips32
->data_break_list
;
812 * watchpoint enabled, ignore all byte lanes in value register
813 * and exclude both load and store accesses from watchpoint
814 * condition evaluation
816 int enable
= EJTAG_DBCn_NOSB
| EJTAG_DBCn_NOLB
| EJTAG_DBCn_BE
|
817 (0xff << EJTAG_DBCn_BLM_SHIFT
);
819 if (watchpoint
->set
) {
820 LOG_WARNING("watchpoint already set");
824 while (comparator_list
[wp_num
].used
&& (wp_num
< mips32
->num_data_bpoints
))
826 if (wp_num
>= mips32
->num_data_bpoints
) {
827 LOG_ERROR("Can not find free FP Comparator");
831 if (watchpoint
->length
!= 4) {
832 LOG_ERROR("Only watchpoints of length 4 are supported");
833 return ERROR_TARGET_UNALIGNED_ACCESS
;
836 if (watchpoint
->address
% 4) {
837 LOG_ERROR("Watchpoints address should be word aligned");
838 return ERROR_TARGET_UNALIGNED_ACCESS
;
841 switch (watchpoint
->rw
) {
843 enable
&= ~EJTAG_DBCn_NOLB
;
846 enable
&= ~EJTAG_DBCn_NOSB
;
849 enable
&= ~(EJTAG_DBCn_NOLB
| EJTAG_DBCn_NOSB
);
852 LOG_ERROR("BUG: watchpoint->rw neither read, write nor access");
855 watchpoint
->set
= wp_num
+ 1;
856 comparator_list
[wp_num
].used
= 1;
857 comparator_list
[wp_num
].bp_value
= watchpoint
->address
;
859 /* EJTAG 2.0 uses 29bit DBA. First 3 bits are reserved.
860 * There is as well no ASID register support. */
861 if (ejtag_info
->ejtag_version
== EJTAG_VERSION_20
)
862 comparator_list
[wp_num
].bp_value
&= 0xFFFFFFF8;
864 target_write_u32(target
, comparator_list
[wp_num
].reg_address
+
865 ejtag_info
->ejtag_dbasid_offs
, 0x00000000);
867 target_write_u32(target
, comparator_list
[wp_num
].reg_address
,
868 comparator_list
[wp_num
].bp_value
);
869 target_write_u32(target
, comparator_list
[wp_num
].reg_address
+
870 ejtag_info
->ejtag_dbm_offs
, 0x00000000);
872 target_write_u32(target
, comparator_list
[wp_num
].reg_address
+
873 ejtag_info
->ejtag_dbc_offs
, enable
);
874 /* TODO: probably this value is ignored on 2.0 */
875 target_write_u32(target
, comparator_list
[wp_num
].reg_address
+
876 ejtag_info
->ejtag_dbv_offs
, 0);
877 LOG_DEBUG("wp_num %i bp_value 0x%" PRIx32
"", wp_num
, comparator_list
[wp_num
].bp_value
);
882 static int mips_m4k_unset_watchpoint(struct target
*target
,
883 struct watchpoint
*watchpoint
)
885 /* get pointers to arch-specific information */
886 struct mips32_common
*mips32
= target_to_mips32(target
);
887 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
888 struct mips32_comparator
*comparator_list
= mips32
->data_break_list
;
890 if (!watchpoint
->set
) {
891 LOG_WARNING("watchpoint not set");
895 int wp_num
= watchpoint
->set
- 1;
896 if ((wp_num
< 0) || (wp_num
>= mips32
->num_data_bpoints
)) {
897 LOG_DEBUG("Invalid FP Comparator number in watchpoint");
900 comparator_list
[wp_num
].used
= 0;
901 comparator_list
[wp_num
].bp_value
= 0;
902 target_write_u32(target
, comparator_list
[wp_num
].reg_address
+
903 ejtag_info
->ejtag_dbc_offs
, 0);
909 static int mips_m4k_add_watchpoint(struct target
*target
, struct watchpoint
*watchpoint
)
911 struct mips32_common
*mips32
= target_to_mips32(target
);
913 if (mips32
->num_data_bpoints_avail
< 1) {
914 LOG_INFO("no hardware watchpoints available");
915 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE
;
918 mips32
->num_data_bpoints_avail
--;
920 mips_m4k_set_watchpoint(target
, watchpoint
);
924 static int mips_m4k_remove_watchpoint(struct target
*target
,
925 struct watchpoint
*watchpoint
)
927 /* get pointers to arch-specific information */
928 struct mips32_common
*mips32
= target_to_mips32(target
);
930 if (target
->state
!= TARGET_HALTED
) {
931 LOG_WARNING("target not halted");
932 return ERROR_TARGET_NOT_HALTED
;
936 mips_m4k_unset_watchpoint(target
, watchpoint
);
938 mips32
->num_data_bpoints_avail
++;
943 static void mips_m4k_enable_watchpoints(struct target
*target
)
945 struct watchpoint
*watchpoint
= target
->watchpoints
;
947 /* set any pending watchpoints */
949 if (watchpoint
->set
== 0)
950 mips_m4k_set_watchpoint(target
, watchpoint
);
951 watchpoint
= watchpoint
->next
;
955 static int mips_m4k_read_memory(struct target
*target
, target_addr_t address
,
956 uint32_t size
, uint32_t count
, uint8_t *buffer
)
958 struct mips32_common
*mips32
= target_to_mips32(target
);
959 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
961 LOG_DEBUG("address: " TARGET_ADDR_FMT
", size: 0x%8.8" PRIx32
", count: 0x%8.8" PRIx32
"",
962 address
, size
, count
);
964 if (target
->state
!= TARGET_HALTED
) {
965 LOG_WARNING("target not halted");
966 return ERROR_TARGET_NOT_HALTED
;
969 /* sanitize arguments */
970 if (((size
!= 4) && (size
!= 2) && (size
!= 1)) || (count
== 0) || !(buffer
))
971 return ERROR_COMMAND_SYNTAX_ERROR
;
973 if (((size
== 4) && (address
& 0x3u
)) || ((size
== 2) && (address
& 0x1u
)))
974 return ERROR_TARGET_UNALIGNED_ACCESS
;
976 /* since we don't know if buffer is aligned, we allocate new mem that is always aligned */
980 t
= malloc(count
* size
* sizeof(uint8_t));
982 LOG_ERROR("Out of memory");
988 /* if noDMA off, use DMAACC mode for memory read */
990 if (ejtag_info
->impcode
& EJTAG_IMP_NODMA
)
991 retval
= mips32_pracc_read_mem(ejtag_info
, address
, size
, count
, t
);
993 retval
= mips32_dmaacc_read_mem(ejtag_info
, address
, size
, count
, t
);
995 /* mips32_..._read_mem with size 4/2 returns uint32_t/uint16_t in host */
996 /* endianness, but byte array should represent target endianness */
997 if (ERROR_OK
== retval
) {
1000 target_buffer_set_u32_array(target
, buffer
, count
, t
);
1003 target_buffer_set_u16_array(target
, buffer
, count
, t
);
1008 if ((size
> 1) && (t
!= NULL
))
1014 static int mips_m4k_write_memory(struct target
*target
, target_addr_t address
,
1015 uint32_t size
, uint32_t count
, const uint8_t *buffer
)
1017 struct mips32_common
*mips32
= target_to_mips32(target
);
1018 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
1020 LOG_DEBUG("address: " TARGET_ADDR_FMT
", size: 0x%8.8" PRIx32
", count: 0x%8.8" PRIx32
"",
1021 address
, size
, count
);
1023 if (target
->state
!= TARGET_HALTED
) {
1024 LOG_WARNING("target not halted");
1025 return ERROR_TARGET_NOT_HALTED
;
1028 if (size
== 4 && count
> 32) {
1029 int retval
= mips_m4k_bulk_write_memory(target
, address
, count
, buffer
);
1030 if (retval
== ERROR_OK
)
1032 LOG_WARNING("Falling back to non-bulk write");
1035 /* sanitize arguments */
1036 if (((size
!= 4) && (size
!= 2) && (size
!= 1)) || (count
== 0) || !(buffer
))
1037 return ERROR_COMMAND_SYNTAX_ERROR
;
1039 if (((size
== 4) && (address
& 0x3u
)) || ((size
== 2) && (address
& 0x1u
)))
1040 return ERROR_TARGET_UNALIGNED_ACCESS
;
1042 /** correct endianess if we have word or hword access */
1045 /* mips32_..._write_mem with size 4/2 requires uint32_t/uint16_t in host */
1046 /* endianness, but byte array represents target endianness */
1047 t
= malloc(count
* size
* sizeof(uint8_t));
1049 LOG_ERROR("Out of memory");
1055 target_buffer_get_u32_array(target
, buffer
, count
, (uint32_t *)t
);
1058 target_buffer_get_u16_array(target
, buffer
, count
, (uint16_t *)t
);
1064 /* if noDMA off, use DMAACC mode for memory write */
1066 if (ejtag_info
->impcode
& EJTAG_IMP_NODMA
)
1067 retval
= mips32_pracc_write_mem(ejtag_info
, address
, size
, count
, buffer
);
1069 retval
= mips32_dmaacc_write_mem(ejtag_info
, address
, size
, count
, buffer
);
1074 if (ERROR_OK
!= retval
)
1080 static int mips_m4k_init_target(struct command_context
*cmd_ctx
,
1081 struct target
*target
)
1083 mips32_build_reg_cache(target
);
1088 static int mips_m4k_init_arch_info(struct target
*target
,
1089 struct mips_m4k_common
*mips_m4k
, struct jtag_tap
*tap
)
1091 struct mips32_common
*mips32
= &mips_m4k
->mips32
;
1093 mips_m4k
->common_magic
= MIPSM4K_COMMON_MAGIC
;
1095 /* initialize mips4k specific info */
1096 mips32_init_arch_info(target
, mips32
, tap
);
1097 mips32
->arch_info
= mips_m4k
;
1102 static int mips_m4k_target_create(struct target
*target
, Jim_Interp
*interp
)
1104 struct mips_m4k_common
*mips_m4k
= calloc(1, sizeof(struct mips_m4k_common
));
1106 mips_m4k_init_arch_info(target
, mips_m4k
, target
->tap
);
1111 static int mips_m4k_examine(struct target
*target
)
1114 struct mips_m4k_common
*mips_m4k
= target_to_m4k(target
);
1115 struct mips_ejtag
*ejtag_info
= &mips_m4k
->mips32
.ejtag_info
;
1116 uint32_t idcode
= 0;
1118 if (!target_was_examined(target
)) {
1119 retval
= mips_ejtag_get_idcode(ejtag_info
, &idcode
);
1120 if (retval
!= ERROR_OK
)
1122 ejtag_info
->idcode
= idcode
;
1124 if (((idcode
>> 1) & 0x7FF) == 0x29) {
1125 /* we are using a pic32mx so select ejtag port
1126 * as it is not selected by default */
1127 mips_ejtag_set_instr(ejtag_info
, MTAP_SW_ETAP
);
1128 LOG_DEBUG("PIC32MX Detected - using EJTAG Interface");
1129 mips_m4k
->is_pic32mx
= true;
1133 /* init rest of ejtag interface */
1134 retval
= mips_ejtag_init(ejtag_info
);
1135 if (retval
!= ERROR_OK
)
1138 retval
= mips32_examine(target
);
1139 if (retval
!= ERROR_OK
)
1145 static int mips_m4k_bulk_write_memory(struct target
*target
, target_addr_t address
,
1146 uint32_t count
, const uint8_t *buffer
)
1148 struct mips32_common
*mips32
= target_to_mips32(target
);
1149 struct mips_ejtag
*ejtag_info
= &mips32
->ejtag_info
;
1150 struct working_area
*fast_data_area
;
1154 LOG_DEBUG("address: " TARGET_ADDR_FMT
", count: 0x%8.8" PRIx32
"",
1157 /* check alignment */
1159 return ERROR_TARGET_UNALIGNED_ACCESS
;
1161 if (mips32
->fast_data_area
== NULL
) {
1162 /* Get memory for block write handler
1163 * we preserve this area between calls and gain a speed increase
1164 * of about 3kb/sec when writing flash
1165 * this will be released/nulled by the system when the target is resumed or reset */
1166 retval
= target_alloc_working_area(target
,
1167 MIPS32_FASTDATA_HANDLER_SIZE
,
1168 &mips32
->fast_data_area
);
1169 if (retval
!= ERROR_OK
) {
1170 LOG_ERROR("No working area available");
1174 /* reset fastadata state so the algo get reloaded */
1175 ejtag_info
->fast_access_save
= -1;
1178 fast_data_area
= mips32
->fast_data_area
;
1180 if (address
<= fast_data_area
->address
+ fast_data_area
->size
&&
1181 fast_data_area
->address
<= address
+ count
) {
1182 LOG_ERROR("fast_data (" TARGET_ADDR_FMT
") is within write area "
1183 "(" TARGET_ADDR_FMT
"-" TARGET_ADDR_FMT
").",
1184 fast_data_area
->address
, address
, address
+ count
);
1185 LOG_ERROR("Change work-area-phys or load_image address!");
1189 /* mips32_pracc_fastdata_xfer requires uint32_t in host endianness, */
1190 /* but byte array represents target endianness */
1192 t
= malloc(count
* sizeof(uint32_t));
1194 LOG_ERROR("Out of memory");
1198 target_buffer_get_u32_array(target
, buffer
, count
, t
);
1200 retval
= mips32_pracc_fastdata_xfer(ejtag_info
, mips32
->fast_data_area
, write_t
, address
,
1206 if (retval
!= ERROR_OK
)
1207 LOG_ERROR("Fastdata access Failed");
1212 static int mips_m4k_verify_pointer(struct command_context
*cmd_ctx
,
1213 struct mips_m4k_common
*mips_m4k
)
1215 if (mips_m4k
->common_magic
!= MIPSM4K_COMMON_MAGIC
) {
1216 command_print(cmd_ctx
, "target is not an MIPS_M4K");
1217 return ERROR_TARGET_INVALID
;
1222 COMMAND_HANDLER(mips_m4k_handle_cp0_command
)
1225 struct target
*target
= get_current_target(CMD_CTX
);
1226 struct mips_m4k_common
*mips_m4k
= target_to_m4k(target
);
1227 struct mips_ejtag
*ejtag_info
= &mips_m4k
->mips32
.ejtag_info
;
1229 retval
= mips_m4k_verify_pointer(CMD_CTX
, mips_m4k
);
1230 if (retval
!= ERROR_OK
)
1233 if (target
->state
!= TARGET_HALTED
) {
1234 command_print(CMD_CTX
, "target must be stopped for \"%s\" command", CMD_NAME
);
1238 /* two or more argument, access a single register/select (write if third argument is given) */
1240 return ERROR_COMMAND_SYNTAX_ERROR
;
1242 uint32_t cp0_reg
, cp0_sel
;
1243 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[0], cp0_reg
);
1244 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[1], cp0_sel
);
1246 if (CMD_ARGC
== 2) {
1248 retval
= mips32_cp0_read(ejtag_info
, &value
, cp0_reg
, cp0_sel
);
1249 if (retval
!= ERROR_OK
) {
1250 command_print(CMD_CTX
,
1251 "couldn't access reg %" PRIi32
,
1255 command_print(CMD_CTX
, "cp0 reg %" PRIi32
", select %" PRIi32
": %8.8" PRIx32
,
1256 cp0_reg
, cp0_sel
, value
);
1258 } else if (CMD_ARGC
== 3) {
1260 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[2], value
);
1261 retval
= mips32_cp0_write(ejtag_info
, value
, cp0_reg
, cp0_sel
);
1262 if (retval
!= ERROR_OK
) {
1263 command_print(CMD_CTX
,
1264 "couldn't access cp0 reg %" PRIi32
", select %" PRIi32
,
1268 command_print(CMD_CTX
, "cp0 reg %" PRIi32
", select %" PRIi32
": %8.8" PRIx32
,
1269 cp0_reg
, cp0_sel
, value
);
1276 COMMAND_HANDLER(mips_m4k_handle_smp_off_command
)
1278 struct target
*target
= get_current_target(CMD_CTX
);
1279 /* check target is an smp target */
1280 struct target_list
*head
;
1281 struct target
*curr
;
1282 head
= target
->head
;
1284 if (head
!= (struct target_list
*)NULL
) {
1285 while (head
!= (struct target_list
*)NULL
) {
1286 curr
= head
->target
;
1290 /* fixes the target display to the debugger */
1291 target
->gdb_service
->target
= target
;
1296 COMMAND_HANDLER(mips_m4k_handle_smp_on_command
)
1298 struct target
*target
= get_current_target(CMD_CTX
);
1299 struct target_list
*head
;
1300 struct target
*curr
;
1301 head
= target
->head
;
1302 if (head
!= (struct target_list
*)NULL
) {
1304 while (head
!= (struct target_list
*)NULL
) {
1305 curr
= head
->target
;
1313 COMMAND_HANDLER(mips_m4k_handle_smp_gdb_command
)
1315 struct target
*target
= get_current_target(CMD_CTX
);
1316 int retval
= ERROR_OK
;
1317 struct target_list
*head
;
1318 head
= target
->head
;
1319 if (head
!= (struct target_list
*)NULL
) {
1320 if (CMD_ARGC
== 1) {
1322 COMMAND_PARSE_NUMBER(int, CMD_ARGV
[0], coreid
);
1323 if (ERROR_OK
!= retval
)
1325 target
->gdb_service
->core
[1] = coreid
;
1328 command_print(CMD_CTX
, "gdb coreid %" PRId32
" -> %" PRId32
, target
->gdb_service
->core
[0]
1329 , target
->gdb_service
->core
[1]);
1334 COMMAND_HANDLER(mips_m4k_handle_scan_delay_command
)
1336 struct target
*target
= get_current_target(CMD_CTX
);
1337 struct mips_m4k_common
*mips_m4k
= target_to_m4k(target
);
1338 struct mips_ejtag
*ejtag_info
= &mips_m4k
->mips32
.ejtag_info
;
1341 COMMAND_PARSE_NUMBER(uint
, CMD_ARGV
[0], ejtag_info
->scan_delay
);
1342 else if (CMD_ARGC
> 1)
1343 return ERROR_COMMAND_SYNTAX_ERROR
;
1345 command_print(CMD_CTX
, "scan delay: %d nsec", ejtag_info
->scan_delay
);
1346 if (ejtag_info
->scan_delay
>= MIPS32_SCAN_DELAY_LEGACY_MODE
) {
1347 ejtag_info
->mode
= 0;
1348 command_print(CMD_CTX
, "running in legacy mode");
1350 ejtag_info
->mode
= 1;
1351 command_print(CMD_CTX
, "running in fast queued mode");
1357 static const struct command_registration mips_m4k_exec_command_handlers
[] = {
1360 .handler
= mips_m4k_handle_cp0_command
,
1361 .mode
= COMMAND_EXEC
,
1362 .usage
= "regnum [value]",
1363 .help
= "display/modify cp0 register",
1367 .handler
= mips_m4k_handle_smp_off_command
,
1368 .mode
= COMMAND_EXEC
,
1369 .help
= "Stop smp handling",
1374 .handler
= mips_m4k_handle_smp_on_command
,
1375 .mode
= COMMAND_EXEC
,
1376 .help
= "Restart smp handling",
1381 .handler
= mips_m4k_handle_smp_gdb_command
,
1382 .mode
= COMMAND_EXEC
,
1383 .help
= "display/fix current core played to gdb",
1387 .name
= "scan_delay",
1388 .handler
= mips_m4k_handle_scan_delay_command
,
1389 .mode
= COMMAND_ANY
,
1390 .help
= "display/set scan delay in nano seconds",
1393 COMMAND_REGISTRATION_DONE
1396 const struct command_registration mips_m4k_command_handlers
[] = {
1398 .chain
= mips32_command_handlers
,
1402 .mode
= COMMAND_ANY
,
1403 .help
= "mips_m4k command group",
1405 .chain
= mips_m4k_exec_command_handlers
,
1407 COMMAND_REGISTRATION_DONE
1410 struct target_type mips_m4k_target
= {
1413 .poll
= mips_m4k_poll
,
1414 .arch_state
= mips32_arch_state
,
1416 .halt
= mips_m4k_halt
,
1417 .resume
= mips_m4k_resume
,
1418 .step
= mips_m4k_step
,
1420 .assert_reset
= mips_m4k_assert_reset
,
1421 .deassert_reset
= mips_m4k_deassert_reset
,
1423 .get_gdb_reg_list
= mips32_get_gdb_reg_list
,
1425 .read_memory
= mips_m4k_read_memory
,
1426 .write_memory
= mips_m4k_write_memory
,
1427 .checksum_memory
= mips32_checksum_memory
,
1428 .blank_check_memory
= mips32_blank_check_memory
,
1430 .run_algorithm
= mips32_run_algorithm
,
1432 .add_breakpoint
= mips_m4k_add_breakpoint
,
1433 .remove_breakpoint
= mips_m4k_remove_breakpoint
,
1434 .add_watchpoint
= mips_m4k_add_watchpoint
,
1435 .remove_watchpoint
= mips_m4k_remove_watchpoint
,
1437 .commands
= mips_m4k_command_handlers
,
1438 .target_create
= mips_m4k_target_create
,
1439 .init_target
= mips_m4k_init_target
,
1440 .examine
= mips_m4k_examine
,
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