1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
30 #include "arm7_9_common.h"
31 #include "arm_disassembler.h"
32 #include "arm_simulator.h"
37 #include "binarybuffer.h"
45 /* ETM register access functionality
49 bitfield_desc_t etm_comms_ctrl_bitfield_desc[] =
57 int etm_reg_arch_info[] =
59 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
60 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
61 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
62 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
63 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
64 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
65 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
66 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
67 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
68 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
69 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
70 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
71 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x67,
72 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
75 int etm_reg_arch_size_info[] =
77 32, 32, 17, 8, 3, 9, 32, 16,
78 17, 26, 25, 8, 17, 32, 32, 17,
79 32, 32, 32, 32, 32, 32, 32, 32,
80 32, 32, 32, 32, 32, 32, 32, 32,
81 7, 7, 7, 7, 7, 7, 7, 7,
82 7, 7, 7, 7, 7, 7, 7, 7,
83 32, 32, 32, 32, 32, 32, 32, 32,
84 32, 32, 32, 32, 32, 32, 32, 32,
85 32, 32, 32, 32, 32, 32, 32, 32,
86 32, 32, 32, 32, 32, 32, 32, 32,
87 16, 16, 16, 16, 18, 18, 18, 18,
88 17, 17, 17, 17, 16, 16, 16, 16,
89 17, 17, 17, 17, 17, 17, 2,
90 17, 17, 17, 17, 32, 32, 32, 32
93 char* etm_reg_list[] =
101 "ETM_TRACE_RESOURCE_CTRL",
102 "ETM_TRACE_EN_CTRL2",
103 "ETM_TRACE_EN_EVENT",
104 "ETM_TRACE_EN_CTRL1",
105 "ETM_FIFOFULL_REGION",
106 "ETM_FIFOFULL_LEVEL",
107 "ETM_VIEWDATA_EVENT",
108 "ETM_VIEWDATA_CTRL1",
109 "ETM_VIEWDATA_CTRL2",
110 "ETM_VIEWDATA_CTRL3",
111 "ETM_ADDR_COMPARATOR_VALUE1",
112 "ETM_ADDR_COMPARATOR_VALUE2",
113 "ETM_ADDR_COMPARATOR_VALUE3",
114 "ETM_ADDR_COMPARATOR_VALUE4",
115 "ETM_ADDR_COMPARATOR_VALUE5",
116 "ETM_ADDR_COMPARATOR_VALUE6",
117 "ETM_ADDR_COMPARATOR_VALUE7",
118 "ETM_ADDR_COMPARATOR_VALUE8",
119 "ETM_ADDR_COMPARATOR_VALUE9",
120 "ETM_ADDR_COMPARATOR_VALUE10",
121 "ETM_ADDR_COMPARATOR_VALUE11",
122 "ETM_ADDR_COMPARATOR_VALUE12",
123 "ETM_ADDR_COMPARATOR_VALUE13",
124 "ETM_ADDR_COMPARATOR_VALUE14",
125 "ETM_ADDR_COMPARATOR_VALUE15",
126 "ETM_ADDR_COMPARATOR_VALUE16",
127 "ETM_ADDR_ACCESS_TYPE1",
128 "ETM_ADDR_ACCESS_TYPE2",
129 "ETM_ADDR_ACCESS_TYPE3",
130 "ETM_ADDR_ACCESS_TYPE4",
131 "ETM_ADDR_ACCESS_TYPE5",
132 "ETM_ADDR_ACCESS_TYPE6",
133 "ETM_ADDR_ACCESS_TYPE7",
134 "ETM_ADDR_ACCESS_TYPE8",
135 "ETM_ADDR_ACCESS_TYPE9",
136 "ETM_ADDR_ACCESS_TYPE10",
137 "ETM_ADDR_ACCESS_TYPE11",
138 "ETM_ADDR_ACCESS_TYPE12",
139 "ETM_ADDR_ACCESS_TYPE13",
140 "ETM_ADDR_ACCESS_TYPE14",
141 "ETM_ADDR_ACCESS_TYPE15",
142 "ETM_ADDR_ACCESS_TYPE16",
143 "ETM_DATA_COMPARATOR_VALUE1",
144 "ETM_DATA_COMPARATOR_VALUE2",
145 "ETM_DATA_COMPARATOR_VALUE3",
146 "ETM_DATA_COMPARATOR_VALUE4",
147 "ETM_DATA_COMPARATOR_VALUE5",
148 "ETM_DATA_COMPARATOR_VALUE6",
149 "ETM_DATA_COMPARATOR_VALUE7",
150 "ETM_DATA_COMPARATOR_VALUE8",
151 "ETM_DATA_COMPARATOR_VALUE9",
152 "ETM_DATA_COMPARATOR_VALUE10",
153 "ETM_DATA_COMPARATOR_VALUE11",
154 "ETM_DATA_COMPARATOR_VALUE12",
155 "ETM_DATA_COMPARATOR_VALUE13",
156 "ETM_DATA_COMPARATOR_VALUE14",
157 "ETM_DATA_COMPARATOR_VALUE15",
158 "ETM_DATA_COMPARATOR_VALUE16",
159 "ETM_DATA_COMPARATOR_MASK1",
160 "ETM_DATA_COMPARATOR_MASK2",
161 "ETM_DATA_COMPARATOR_MASK3",
162 "ETM_DATA_COMPARATOR_MASK4",
163 "ETM_DATA_COMPARATOR_MASK5",
164 "ETM_DATA_COMPARATOR_MASK6",
165 "ETM_DATA_COMPARATOR_MASK7",
166 "ETM_DATA_COMPARATOR_MASK8",
167 "ETM_DATA_COMPARATOR_MASK9",
168 "ETM_DATA_COMPARATOR_MASK10",
169 "ETM_DATA_COMPARATOR_MASK11",
170 "ETM_DATA_COMPARATOR_MASK12",
171 "ETM_DATA_COMPARATOR_MASK13",
172 "ETM_DATA_COMPARATOR_MASK14",
173 "ETM_DATA_COMPARATOR_MASK15",
174 "ETM_DATA_COMPARATOR_MASK16",
175 "ETM_COUNTER_INITAL_VALUE1",
176 "ETM_COUNTER_INITAL_VALUE2",
177 "ETM_COUNTER_INITAL_VALUE3",
178 "ETM_COUNTER_INITAL_VALUE4",
179 "ETM_COUNTER_ENABLE1",
180 "ETM_COUNTER_ENABLE2",
181 "ETM_COUNTER_ENABLE3",
182 "ETM_COUNTER_ENABLE4",
183 "ETM_COUNTER_RELOAD_VALUE1",
184 "ETM_COUNTER_RELOAD_VALUE2",
185 "ETM_COUNTER_RELOAD_VALUE3",
186 "ETM_COUNTER_RELOAD_VALUE4",
187 "ETM_COUNTER_VALUE1",
188 "ETM_COUNTER_VALUE2",
189 "ETM_COUNTER_VALUE3",
190 "ETM_COUNTER_VALUE4",
191 "ETM_SEQUENCER_CTRL1",
192 "ETM_SEQUENCER_CTRL2",
193 "ETM_SEQUENCER_CTRL3",
194 "ETM_SEQUENCER_CTRL4",
195 "ETM_SEQUENCER_CTRL5",
196 "ETM_SEQUENCER_CTRL6",
197 "ETM_SEQUENCER_STATE",
198 "ETM_EXTERNAL_OUTPUT1",
199 "ETM_EXTERNAL_OUTPUT2",
200 "ETM_EXTERNAL_OUTPUT3",
201 "ETM_EXTERNAL_OUTPUT4",
202 "ETM_CONTEXTID_COMPARATOR_VALUE1",
203 "ETM_CONTEXTID_COMPARATOR_VALUE2",
204 "ETM_CONTEXTID_COMPARATOR_VALUE3",
205 "ETM_CONTEXTID_COMPARATOR_MASK"
208 int etm_reg_arch_type = -1;
210 int etm_get_reg(reg_t *reg);
211 int etm_set_reg(reg_t *reg, u32 value);
212 int etm_set_reg_w_exec(reg_t *reg, u8 *buf);
214 int etm_write_reg(reg_t *reg, u32 value);
215 int etm_read_reg(reg_t *reg);
217 command_t *etm_cmd = NULL;
219 reg_cache_t* etm_build_reg_cache(target_t *target, arm_jtag_t *jtag_info, etm_context_t *etm_ctx)
221 reg_cache_t *reg_cache = malloc(sizeof(reg_cache_t));
222 reg_t *reg_list = NULL;
223 etm_reg_t *arch_info = NULL;
224 int num_regs = sizeof(etm_reg_arch_info)/sizeof(int);
228 /* register a register arch-type for etm registers only once */
229 if (etm_reg_arch_type == -1)
230 etm_reg_arch_type = register_reg_arch_type(etm_get_reg, etm_set_reg_w_exec);
232 /* the actual registers are kept in two arrays */
233 reg_list = calloc(num_regs, sizeof(reg_t));
234 arch_info = calloc(num_regs, sizeof(etm_reg_t));
236 /* fill in values for the reg cache */
237 reg_cache->name = "etm registers";
238 reg_cache->next = NULL;
239 reg_cache->reg_list = reg_list;
240 reg_cache->num_regs = num_regs;
242 /* set up registers */
243 for (i = 0; i < num_regs; i++)
245 reg_list[i].name = etm_reg_list[i];
246 reg_list[i].size = 32;
247 reg_list[i].dirty = 0;
248 reg_list[i].valid = 0;
249 reg_list[i].bitfield_desc = NULL;
250 reg_list[i].num_bitfields = 0;
251 reg_list[i].value = calloc(1, 4);
252 reg_list[i].arch_info = &arch_info[i];
253 reg_list[i].arch_type = etm_reg_arch_type;
254 reg_list[i].size = etm_reg_arch_size_info[i];
255 arch_info[i].addr = etm_reg_arch_info[i];
256 arch_info[i].jtag_info = jtag_info;
259 /* initialize some ETM control register settings */
260 etm_get_reg(®_list[ETM_CTRL]);
261 etm_ctrl_value = buf_get_u32(reg_list[ETM_CTRL].value, 0, reg_list[ETM_CTRL].size);
263 /* clear the ETM powerdown bit (0) */
264 etm_ctrl_value &= ~0x1;
266 /* configure port width (6:4), mode (17:16) and clocking (13) */
267 etm_ctrl_value = (etm_ctrl_value &
268 ~ETM_PORT_WIDTH_MASK & ~ETM_PORT_MODE_MASK & ~ETM_PORT_CLOCK_MASK)
271 buf_set_u32(reg_list[ETM_CTRL].value, 0, reg_list[ETM_CTRL].size, etm_ctrl_value);
272 etm_store_reg(®_list[ETM_CTRL]);
274 /* the ETM might have an ETB connected */
275 if (strcmp(etm_ctx->capture_driver->name, "etb") == 0)
277 etb_t *etb = etm_ctx->capture_driver_priv;
281 ERROR("etb selected as etm capture driver, but no ETB configured");
285 reg_cache->next = etb_build_reg_cache(etb);
287 etb->reg_cache = reg_cache->next;
290 if (etm_ctx->capture_driver->init(etm_ctx) != ERROR_OK)
292 ERROR("ETM capture driver initialization failed");
299 int etm_get_reg(reg_t *reg)
301 if (etm_read_reg(reg) != ERROR_OK)
303 ERROR("BUG: error scheduling etm register read");
307 if (jtag_execute_queue() != ERROR_OK)
309 ERROR("register read failed");
315 int etm_read_reg_w_check(reg_t *reg, u8* check_value, u8* check_mask)
317 etm_reg_t *etm_reg = reg->arch_info;
318 u8 reg_addr = etm_reg->addr & 0x7f;
319 scan_field_t fields[3];
321 DEBUG("%i", etm_reg->addr);
323 jtag_add_end_state(TAP_RTI);
324 arm_jtag_scann(etm_reg->jtag_info, 0x6);
325 arm_jtag_set_instr(etm_reg->jtag_info, etm_reg->jtag_info->intest_instr, NULL);
327 fields[0].device = etm_reg->jtag_info->chain_pos;
328 fields[0].num_bits = 32;
329 fields[0].out_value = reg->value;
330 fields[0].out_mask = NULL;
331 fields[0].in_value = NULL;
332 fields[0].in_check_value = NULL;
333 fields[0].in_check_mask = NULL;
334 fields[0].in_handler = NULL;
335 fields[0].in_handler_priv = NULL;
337 fields[1].device = etm_reg->jtag_info->chain_pos;
338 fields[1].num_bits = 7;
339 fields[1].out_value = malloc(1);
340 buf_set_u32(fields[1].out_value, 0, 7, reg_addr);
341 fields[1].out_mask = NULL;
342 fields[1].in_value = NULL;
343 fields[1].in_check_value = NULL;
344 fields[1].in_check_mask = NULL;
345 fields[1].in_handler = NULL;
346 fields[1].in_handler_priv = NULL;
348 fields[2].device = etm_reg->jtag_info->chain_pos;
349 fields[2].num_bits = 1;
350 fields[2].out_value = malloc(1);
351 buf_set_u32(fields[2].out_value, 0, 1, 0);
352 fields[2].out_mask = NULL;
353 fields[2].in_value = NULL;
354 fields[2].in_check_value = NULL;
355 fields[2].in_check_mask = NULL;
356 fields[2].in_handler = NULL;
357 fields[2].in_handler_priv = NULL;
359 jtag_add_dr_scan(3, fields, -1, NULL);
361 fields[0].in_value = reg->value;
362 fields[0].in_check_value = check_value;
363 fields[0].in_check_mask = check_mask;
365 jtag_add_dr_scan(3, fields, -1, NULL);
367 free(fields[1].out_value);
368 free(fields[2].out_value);
373 int etm_read_reg(reg_t *reg)
375 return etm_read_reg_w_check(reg, NULL, NULL);
378 int etm_set_reg(reg_t *reg, u32 value)
380 if (etm_write_reg(reg, value) != ERROR_OK)
382 ERROR("BUG: error scheduling etm register write");
386 buf_set_u32(reg->value, 0, reg->size, value);
393 int etm_set_reg_w_exec(reg_t *reg, u8 *buf)
395 etm_set_reg(reg, buf_get_u32(buf, 0, reg->size));
397 if (jtag_execute_queue() != ERROR_OK)
399 ERROR("register write failed");
405 int etm_write_reg(reg_t *reg, u32 value)
407 etm_reg_t *etm_reg = reg->arch_info;
408 u8 reg_addr = etm_reg->addr & 0x7f;
409 scan_field_t fields[3];
411 DEBUG("%i: 0x%8.8x", etm_reg->addr, value);
413 jtag_add_end_state(TAP_RTI);
414 arm_jtag_scann(etm_reg->jtag_info, 0x6);
415 arm_jtag_set_instr(etm_reg->jtag_info, etm_reg->jtag_info->intest_instr, NULL);
417 fields[0].device = etm_reg->jtag_info->chain_pos;
418 fields[0].num_bits = 32;
419 fields[0].out_value = malloc(4);
420 buf_set_u32(fields[0].out_value, 0, 32, value);
421 fields[0].out_mask = NULL;
422 fields[0].in_value = NULL;
423 fields[0].in_check_value = NULL;
424 fields[0].in_check_mask = NULL;
425 fields[0].in_handler = NULL;
426 fields[0].in_handler_priv = NULL;
428 fields[1].device = etm_reg->jtag_info->chain_pos;
429 fields[1].num_bits = 7;
430 fields[1].out_value = malloc(1);
431 buf_set_u32(fields[1].out_value, 0, 7, reg_addr);
432 fields[1].out_mask = NULL;
433 fields[1].in_value = NULL;
434 fields[1].in_check_value = NULL;
435 fields[1].in_check_mask = NULL;
436 fields[1].in_handler = NULL;
437 fields[1].in_handler_priv = NULL;
439 fields[2].device = etm_reg->jtag_info->chain_pos;
440 fields[2].num_bits = 1;
441 fields[2].out_value = malloc(1);
442 buf_set_u32(fields[2].out_value, 0, 1, 1);
443 fields[2].out_mask = NULL;
444 fields[2].in_value = NULL;
445 fields[2].in_check_value = NULL;
446 fields[2].in_check_mask = NULL;
447 fields[2].in_handler = NULL;
448 fields[2].in_handler_priv = NULL;
450 jtag_add_dr_scan(3, fields, -1, NULL);
452 free(fields[0].out_value);
453 free(fields[1].out_value);
454 free(fields[2].out_value);
459 int etm_store_reg(reg_t *reg)
461 return etm_write_reg(reg, buf_get_u32(reg->value, 0, reg->size));
464 /* ETM trace analysis functionality
467 extern etm_capture_driver_t etb_capture_driver;
468 extern etm_capture_driver_t etm_dummy_capture_driver;
469 #if BUILD_OOCD_TRACE == 1
470 extern etm_capture_driver_t oocd_trace_capture_driver;
473 etm_capture_driver_t *etm_capture_drivers[] =
476 &etm_dummy_capture_driver,
477 #if BUILD_OOCD_TRACE == 1
478 &oocd_trace_capture_driver,
483 char *etmv1v1_branch_reason_strings[] =
487 "trace restarted after overflow",
489 "periodic synchronization",
495 int etm_read_instruction(etm_context_t *ctx, arm_instruction_t *instruction)
504 return ERROR_TRACE_IMAGE_UNAVAILABLE;
506 /* search for the section the current instruction belongs to */
507 for (i = 0; i < ctx->image->num_sections; i++)
509 if ((ctx->image->sections[i].base_address <= ctx->current_pc) &&
510 (ctx->image->sections[i].base_address + ctx->image->sections[i].size > ctx->current_pc))
519 /* current instruction couldn't be found in the image */
520 return ERROR_TRACE_INSTRUCTION_UNAVAILABLE;
523 if (ctx->core_state == ARMV4_5_STATE_ARM)
526 if ((retval = image_read_section(ctx->image, section,
527 ctx->current_pc - ctx->image->sections[section].base_address,
528 4, buf, &size_read)) != ERROR_OK)
530 ERROR("error while reading instruction: %i", retval);
531 return ERROR_TRACE_INSTRUCTION_UNAVAILABLE;
533 opcode = target_buffer_get_u32(ctx->target, buf);
534 arm_evaluate_opcode(opcode, ctx->current_pc, instruction);
536 else if (ctx->core_state == ARMV4_5_STATE_THUMB)
539 if ((retval = image_read_section(ctx->image, section,
540 ctx->current_pc - ctx->image->sections[section].base_address,
541 2, buf, &size_read)) != ERROR_OK)
543 ERROR("error while reading instruction: %i", retval);
544 return ERROR_TRACE_INSTRUCTION_UNAVAILABLE;
546 opcode = target_buffer_get_u16(ctx->target, buf);
547 thumb_evaluate_opcode(opcode, ctx->current_pc, instruction);
549 else if (ctx->core_state == ARMV4_5_STATE_JAZELLE)
551 ERROR("BUG: tracing of jazelle code not supported");
556 ERROR("BUG: unknown core state encountered");
563 int etmv1_next_packet(etm_context_t *ctx, u8 *packet, int apo)
565 while (ctx->data_index < ctx->trace_depth)
567 /* if the caller specified an address packet offset, skip until the
568 * we reach the n-th cycle marked with tracesync */
571 if (ctx->trace_data[ctx->data_index].flags & ETMV1_TRACESYNC_CYCLE)
582 /* no tracedata output during a TD cycle
583 * or in a trigger cycle */
584 if ((ctx->trace_data[ctx->data_index].pipestat == STAT_TD)
585 || (ctx->trace_data[ctx->data_index].flags & ETMV1_TRIGGER_CYCLE))
592 if ((ctx->portmode & ETM_PORT_WIDTH_MASK) == ETM_PORT_16BIT)
594 if (ctx->data_half == 0)
596 *packet = ctx->trace_data[ctx->data_index].packet & 0xff;
601 *packet = (ctx->trace_data[ctx->data_index].packet & 0xff00) >> 8;
606 else if ((ctx->portmode & ETM_PORT_WIDTH_MASK) == ETM_PORT_8BIT)
608 *packet = ctx->trace_data[ctx->data_index].packet & 0xff;
613 /* on a 4-bit port, a packet will be output during two consecutive cycles */
614 if (ctx->data_index > (ctx->trace_depth - 2))
617 *packet = ctx->trace_data[ctx->data_index].packet & 0xf;
618 *packet |= (ctx->trace_data[ctx->data_index + 1].packet & 0xf) << 4;
619 ctx->data_index += 2;
628 int etmv1_branch_address(etm_context_t *ctx)
636 /* quit analysis if less than two cycles are left in the trace
637 * because we can't extract the APO */
638 if (ctx->data_index > (ctx->trace_depth - 2))
641 /* a BE could be output during an APO cycle, skip the current
642 * and continue with the new one */
643 if (ctx->trace_data[ctx->pipe_index + 1].pipestat & 0x4)
645 if (ctx->trace_data[ctx->pipe_index + 2].pipestat & 0x4)
648 /* address packet offset encoded in the next two cycles' pipestat bits */
649 apo = ctx->trace_data[ctx->pipe_index + 1].pipestat & 0x3;
650 apo |= (ctx->trace_data[ctx->pipe_index + 2].pipestat & 0x3) << 2;
652 /* count number of tracesync cycles between current pipe_index and data_index
653 * i.e. the number of tracesyncs that data_index already passed by
654 * to subtract them from the APO */
655 for (i = ctx->pipe_index; i < ctx->data_index; i++)
657 if (ctx->trace_data[ctx->pipe_index + 1].pipestat & ETMV1_TRACESYNC_CYCLE)
661 /* extract up to four 7-bit packets */
663 if ((retval = etmv1_next_packet(ctx, &packet, (shift == 0) ? apo + 1 : 0)) != 0)
665 ctx->last_branch &= ~(0x7f << shift);
666 ctx->last_branch |= (packet & 0x7f) << shift;
668 } while ((packet & 0x80) && (shift < 28));
670 /* one last packet holding 4 bits of the address, plus the branch reason code */
671 if ((shift == 28) && (packet & 0x80))
673 if ((retval = etmv1_next_packet(ctx, &packet, 0)) != 0)
675 ctx->last_branch &= 0x0fffffff;
676 ctx->last_branch |= (packet & 0x0f) << 28;
677 ctx->last_branch_reason = (packet & 0x70) >> 4;
682 ctx->last_branch_reason = 0;
690 /* if a full address was output, we might have branched into Jazelle state */
691 if ((shift == 32) && (packet & 0x80))
693 ctx->core_state = ARMV4_5_STATE_JAZELLE;
697 /* if we didn't branch into Jazelle state, the current processor state is
698 * encoded in bit 0 of the branch target address */
699 if (ctx->last_branch & 0x1)
701 ctx->core_state = ARMV4_5_STATE_THUMB;
702 ctx->last_branch &= ~0x1;
706 ctx->core_state = ARMV4_5_STATE_ARM;
707 ctx->last_branch &= ~0x3;
714 int etmv1_data(etm_context_t *ctx, int size, u32 *data)
720 for (j = 0; j < size; j++)
722 if ((retval = etmv1_next_packet(ctx, &buf[j], 0)) != 0)
727 ERROR("TODO: add support for 64-bit values");
729 *data = target_buffer_get_u32(ctx->target, buf);
731 *data = target_buffer_get_u16(ctx->target, buf);
738 int etmv1_analyze_trace(etm_context_t *ctx, struct command_context_s *cmd_ctx)
741 arm_instruction_t instruction;
743 /* read the trace data if it wasn't read already */
744 if (ctx->trace_depth == 0)
745 ctx->capture_driver->read_trace(ctx);
747 /* start at the beginning of the captured trace */
752 /* neither the PC nor the data pointer are valid */
756 while (ctx->pipe_index < ctx->trace_depth)
758 u8 pipestat = ctx->trace_data[ctx->pipe_index].pipestat;
759 u32 next_pc = ctx->current_pc;
760 u32 old_data_index = ctx->data_index;
761 u32 old_data_half = ctx->data_half;
762 u32 old_index = ctx->pipe_index;
763 u32 last_instruction = ctx->last_instruction;
765 int current_pc_ok = ctx->pc_ok;
767 if (ctx->trace_data[ctx->pipe_index].flags & ETMV1_TRIGGER_CYCLE)
769 command_print(cmd_ctx, "--- trigger ---");
772 /* instructions execute in IE/D or BE/D cycles */
773 if ((pipestat == STAT_IE) || (pipestat == STAT_ID))
774 ctx->last_instruction = ctx->pipe_index;
776 /* if we don't have a valid pc skip until we reach an indirect branch */
777 if ((!ctx->pc_ok) && (pipestat != STAT_BE))
783 /* any indirect branch could have interrupted instruction flow
784 * - the branch reason code could indicate a trace discontinuity
785 * - a branch to the exception vectors indicates an exception
787 if ((pipestat == STAT_BE) || (pipestat == STAT_BD))
789 /* backup current data index, to be able to consume the branch address
790 * before examining data address and values
792 old_data_index = ctx->data_index;
793 old_data_half = ctx->data_half;
795 ctx->last_instruction = ctx->pipe_index;
797 if ((retval = etmv1_branch_address(ctx)) != 0)
799 /* negative return value from etmv1_branch_address means we ran out of packets,
800 * quit analysing the trace */
804 /* a positive return values means the current branch was abandoned,
805 * and a new branch was encountered in cycle ctx->pipe_index + retval;
807 WARNING("abandoned branch encountered, correctnes of analysis uncertain");
808 ctx->pipe_index += retval;
812 /* skip over APO cycles */
813 ctx->pipe_index += 2;
815 switch (ctx->last_branch_reason)
817 case 0x0: /* normal PC change */
818 next_pc = ctx->last_branch;
820 case 0x1: /* tracing enabled */
821 command_print(cmd_ctx, "--- tracing enabled at 0x%8.8x ---", ctx->last_branch);
822 ctx->current_pc = ctx->last_branch;
826 case 0x2: /* trace restarted after FIFO overflow */
827 command_print(cmd_ctx, "--- trace restarted after FIFO overflow at 0x%8.8x ---", ctx->last_branch);
828 ctx->current_pc = ctx->last_branch;
832 case 0x3: /* exit from debug state */
833 command_print(cmd_ctx, "--- exit from debug state at 0x%8.8x ---", ctx->last_branch);
834 ctx->current_pc = ctx->last_branch;
838 case 0x4: /* periodic synchronization point */
839 next_pc = ctx->last_branch;
840 /* if we had no valid PC prior to this synchronization point,
841 * we have to move on with the next trace cycle
845 command_print(cmd_ctx, "--- periodic synchronization point at 0x%8.8x ---", next_pc);
846 ctx->current_pc = next_pc;
851 default: /* reserved */
852 ERROR("BUG: branch reason code 0x%x is reserved", ctx->last_branch_reason);
857 /* if we got here the branch was a normal PC change
858 * (or a periodic synchronization point, which means the same for that matter)
859 * if we didn't accquire a complete PC continue with the next cycle
864 /* indirect branch to the exception vector means an exception occured */
865 if (((ctx->last_branch >= 0x0) && (ctx->last_branch <= 0x20))
866 || ((ctx->last_branch >= 0xffff0000) && (ctx->last_branch <= 0xffff0020)))
868 if ((ctx->last_branch & 0xff) == 0x10)
870 command_print(cmd_ctx, "data abort");
874 command_print(cmd_ctx, "exception vector 0x%2.2x", ctx->last_branch);
875 ctx->current_pc = ctx->last_branch;
882 /* an instruction was executed (or not, depending on the condition flags)
883 * retrieve it from the image for displaying */
884 if (ctx->pc_ok && (pipestat != STAT_WT) && (pipestat != STAT_TD) &&
885 !(((pipestat == STAT_BE) || (pipestat == STAT_BD)) &&
886 ((ctx->last_branch_reason != 0x0) && (ctx->last_branch_reason != 0x4))))
888 if ((retval = etm_read_instruction(ctx, &instruction)) != ERROR_OK)
890 /* can't continue tracing with no image available */
891 if (retval == ERROR_TRACE_IMAGE_UNAVAILABLE)
895 else if (retval == ERROR_TRACE_INSTRUCTION_UNAVAILABLE)
897 /* TODO: handle incomplete images
898 * for now we just quit the analsysis*/
903 cycles = old_index - last_instruction;
906 if ((pipestat == STAT_ID) || (pipestat == STAT_BD))
908 u32 new_data_index = ctx->data_index;
909 u32 new_data_half = ctx->data_half;
911 /* in case of a branch with data, the branch target address was consumed before
912 * we temporarily go back to the saved data index */
913 if (pipestat == STAT_BD)
915 ctx->data_index = old_data_index;
916 ctx->data_half = old_data_half;
919 if (ctx->tracemode & ETMV1_TRACE_ADDR)
925 if ((retval = etmv1_next_packet(ctx, &packet, 0)) != 0)
926 return ERROR_ETM_ANALYSIS_FAILED;
927 ctx->last_ptr &= ~(0x7f << shift);
928 ctx->last_ptr |= (packet & 0x7f) << shift;
930 } while ((packet & 0x80) && (shift < 32));
937 command_print(cmd_ctx, "address: 0x%8.8x", ctx->last_ptr);
941 if (ctx->tracemode & ETMV1_TRACE_DATA)
943 if ((instruction.type == ARM_LDM) || (instruction.type == ARM_STM))
946 for (i = 0; i < 16; i++)
948 if (instruction.info.load_store_multiple.register_list & (1 << i))
951 if (etmv1_data(ctx, 4, &data) != 0)
952 return ERROR_ETM_ANALYSIS_FAILED;
953 command_print(cmd_ctx, "data: 0x%8.8x", data);
957 else if ((instruction.type >= ARM_LDR) && (instruction.type <= ARM_STRH))
960 if (etmv1_data(ctx, arm_access_size(&instruction), &data) != 0)
961 return ERROR_ETM_ANALYSIS_FAILED;
962 command_print(cmd_ctx, "data: 0x%8.8x", data);
966 /* restore data index after consuming BD address and data */
967 if (pipestat == STAT_BD)
969 ctx->data_index = new_data_index;
970 ctx->data_half = new_data_half;
975 if ((pipestat == STAT_IE) || (pipestat == STAT_ID))
977 if (((instruction.type == ARM_B) ||
978 (instruction.type == ARM_BL) ||
979 (instruction.type == ARM_BLX)) &&
980 (instruction.info.b_bl_bx_blx.target_address != -1))
982 next_pc = instruction.info.b_bl_bx_blx.target_address;
986 next_pc += (ctx->core_state == ARMV4_5_STATE_ARM) ? 4 : 2;
989 else if (pipestat == STAT_IN)
991 next_pc += (ctx->core_state == ARMV4_5_STATE_ARM) ? 4 : 2;
994 if ((pipestat != STAT_TD) && (pipestat != STAT_WT))
996 char cycles_text[32] = "";
998 /* if the trace was captured with cycle accurate tracing enabled,
999 * output the number of cycles since the last executed instruction
1001 if (ctx->tracemode & ETMV1_CYCLE_ACCURATE)
1003 snprintf(cycles_text, 32, " (%i %s)",
1005 (cycles == 1) ? "cycle" : "cycles");
1008 command_print(cmd_ctx, "%s%s%s",
1010 (pipestat == STAT_IN) ? " (not executed)" : "",
1013 ctx->current_pc = next_pc;
1015 /* packets for an instruction don't start on or before the preceding
1016 * functional pipestat (i.e. other than WT or TD)
1018 if (ctx->data_index <= ctx->pipe_index)
1020 ctx->data_index = ctx->pipe_index + 1;
1025 ctx->pipe_index += 1;
1031 int handle_etm_tracemode_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1034 armv4_5_common_t *armv4_5;
1035 arm7_9_common_t *arm7_9;
1036 etmv1_tracemode_t tracemode;
1038 target = get_current_target(cmd_ctx);
1040 if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1042 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1046 if (!arm7_9->etm_ctx)
1048 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1052 tracemode = arm7_9->etm_ctx->tracemode;
1056 if (strcmp(args[0], "none") == 0)
1058 tracemode = ETMV1_TRACE_NONE;
1060 else if (strcmp(args[0], "data") == 0)
1062 tracemode = ETMV1_TRACE_DATA;
1064 else if (strcmp(args[0], "address") == 0)
1066 tracemode = ETMV1_TRACE_ADDR;
1068 else if (strcmp(args[0], "all") == 0)
1070 tracemode = ETMV1_TRACE_DATA | ETMV1_TRACE_ADDR;
1074 command_print(cmd_ctx, "invalid option '%s'", args[0]);
1078 switch (strtol(args[1], NULL, 0))
1081 tracemode |= ETMV1_CONTEXTID_NONE;
1084 tracemode |= ETMV1_CONTEXTID_8;
1087 tracemode |= ETMV1_CONTEXTID_16;
1090 tracemode |= ETMV1_CONTEXTID_32;
1093 command_print(cmd_ctx, "invalid option '%s'", args[1]);
1097 if (strcmp(args[2], "enable") == 0)
1099 tracemode |= ETMV1_CYCLE_ACCURATE;
1101 else if (strcmp(args[2], "disable") == 0)
1107 command_print(cmd_ctx, "invalid option '%s'", args[2]);
1111 if (strcmp(args[3], "enable") == 0)
1113 tracemode |= ETMV1_BRANCH_OUTPUT;
1115 else if (strcmp(args[3], "disable") == 0)
1121 command_print(cmd_ctx, "invalid option '%s'", args[2]);
1127 command_print(cmd_ctx, "usage: configure trace mode <none|data|address|all> <context id bits> <cycle accurate> <branch output>");
1131 command_print(cmd_ctx, "current tracemode configuration:");
1133 switch (tracemode & ETMV1_TRACE_MASK)
1135 case ETMV1_TRACE_NONE:
1136 command_print(cmd_ctx, "data tracing: none");
1138 case ETMV1_TRACE_DATA:
1139 command_print(cmd_ctx, "data tracing: data only");
1141 case ETMV1_TRACE_ADDR:
1142 command_print(cmd_ctx, "data tracing: address only");
1144 case ETMV1_TRACE_DATA | ETMV1_TRACE_ADDR:
1145 command_print(cmd_ctx, "data tracing: address and data");
1149 switch (tracemode & ETMV1_CONTEXTID_MASK)
1151 case ETMV1_CONTEXTID_NONE:
1152 command_print(cmd_ctx, "contextid tracing: none");
1154 case ETMV1_CONTEXTID_8:
1155 command_print(cmd_ctx, "contextid tracing: 8 bit");
1157 case ETMV1_CONTEXTID_16:
1158 command_print(cmd_ctx, "contextid tracing: 16 bit");
1160 case ETMV1_CONTEXTID_32:
1161 command_print(cmd_ctx, "contextid tracing: 32 bit");
1165 if (tracemode & ETMV1_CYCLE_ACCURATE)
1167 command_print(cmd_ctx, "cycle-accurate tracing enabled");
1171 command_print(cmd_ctx, "cycle-accurate tracing disabled");
1174 if (tracemode & ETMV1_BRANCH_OUTPUT)
1176 command_print(cmd_ctx, "full branch address output enabled");
1180 command_print(cmd_ctx, "full branch address output disabled");
1183 /* only update ETM_CTRL register if tracemode changed */
1184 if (arm7_9->etm_ctx->tracemode != tracemode)
1186 reg_t *etm_ctrl_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_CTRL];
1188 etm_get_reg(etm_ctrl_reg);
1190 buf_set_u32(etm_ctrl_reg->value, 2, 2, tracemode & ETMV1_TRACE_MASK);
1191 buf_set_u32(etm_ctrl_reg->value, 14, 2, (tracemode & ETMV1_CONTEXTID_MASK) >> 4);
1192 buf_set_u32(etm_ctrl_reg->value, 12, 1, (tracemode & ETMV1_CYCLE_ACCURATE) >> 8);
1193 buf_set_u32(etm_ctrl_reg->value, 8, 1, (tracemode & ETMV1_BRANCH_OUTPUT) >> 9);
1194 etm_store_reg(etm_ctrl_reg);
1196 arm7_9->etm_ctx->tracemode = tracemode;
1198 /* invalidate old trace data */
1199 arm7_9->etm_ctx->capture_status = TRACE_IDLE;
1200 if (arm7_9->etm_ctx->trace_depth > 0)
1202 free(arm7_9->etm_ctx->trace_data);
1204 arm7_9->etm_ctx->trace_depth = 0;
1210 int handle_etm_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1213 armv4_5_common_t *armv4_5;
1214 arm7_9_common_t *arm7_9;
1215 etm_portmode_t portmode = 0x0;
1216 etm_context_t *etm_ctx = malloc(sizeof(etm_context_t));
1221 ERROR("incomplete 'etm config <target> <port_width> <port_mode> <clocking> <capture_driver>' command");
1225 target = get_target_by_num(strtoul(args[0], NULL, 0));
1229 ERROR("target number '%s' not defined", args[0]);
1233 if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1235 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1239 switch (strtoul(args[1], NULL, 0))
1242 portmode |= ETM_PORT_4BIT;
1245 portmode |= ETM_PORT_8BIT;
1248 portmode |= ETM_PORT_16BIT;
1251 command_print(cmd_ctx, "unsupported ETM port width '%s', must be 4, 8 or 16", args[1]);
1255 if (strcmp("normal", args[2]) == 0)
1257 portmode |= ETM_PORT_NORMAL;
1259 else if (strcmp("multiplexed", args[2]) == 0)
1261 portmode |= ETM_PORT_MUXED;
1263 else if (strcmp("demultiplexed", args[2]) == 0)
1265 portmode |= ETM_PORT_DEMUXED;
1269 command_print(cmd_ctx, "unsupported ETM port mode '%s', must be 'normal', 'multiplexed' or 'demultiplexed'", args[2]);
1273 if (strcmp("half", args[3]) == 0)
1275 portmode |= ETM_PORT_HALF_CLOCK;
1277 else if (strcmp("full", args[3]) == 0)
1279 portmode |= ETM_PORT_FULL_CLOCK;
1283 command_print(cmd_ctx, "unsupported ETM port clocking '%s', must be 'full' or 'half'", args[3]);
1287 for (i=0; etm_capture_drivers[i]; i++)
1289 if (strcmp(args[4], etm_capture_drivers[i]->name) == 0)
1291 if (etm_capture_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
1297 etm_ctx->capture_driver = etm_capture_drivers[i];
1303 if (!etm_capture_drivers[i])
1305 /* no supported capture driver found, don't register an ETM */
1307 ERROR("trace capture driver '%s' not found", args[4]);
1311 etm_ctx->target = target;
1312 etm_ctx->trigger_percent = 50;
1313 etm_ctx->trace_data = NULL;
1314 etm_ctx->trace_depth = 0;
1315 etm_ctx->portmode = portmode;
1316 etm_ctx->tracemode = 0x0;
1317 etm_ctx->core_state = ARMV4_5_STATE_ARM;
1318 etm_ctx->image = NULL;
1319 etm_ctx->pipe_index = 0;
1320 etm_ctx->data_index = 0;
1321 etm_ctx->current_pc = 0x0;
1323 etm_ctx->last_branch = 0x0;
1324 etm_ctx->last_branch_reason = 0x0;
1325 etm_ctx->last_ptr = 0x0;
1326 etm_ctx->ptr_ok = 0x0;
1327 etm_ctx->context_id = 0x0;
1328 etm_ctx->last_instruction = 0;
1330 arm7_9->etm_ctx = etm_ctx;
1332 etm_register_user_commands(cmd_ctx);
1337 int handle_etm_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1340 armv4_5_common_t *armv4_5;
1341 arm7_9_common_t *arm7_9;
1342 reg_t *etm_config_reg;
1343 reg_t *etm_sys_config_reg;
1347 target = get_current_target(cmd_ctx);
1349 if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1351 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1355 if (!arm7_9->etm_ctx)
1357 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1361 etm_config_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_CONFIG];
1362 etm_sys_config_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_SYS_CONFIG];
1364 etm_get_reg(etm_config_reg);
1365 command_print(cmd_ctx, "pairs of address comparators: %i", buf_get_u32(etm_config_reg->value, 0, 4));
1366 command_print(cmd_ctx, "pairs of data comparators: %i", buf_get_u32(etm_config_reg->value, 4, 4));
1367 command_print(cmd_ctx, "memory map decoders: %i", buf_get_u32(etm_config_reg->value, 8, 5));
1368 command_print(cmd_ctx, "number of counters: %i", buf_get_u32(etm_config_reg->value, 13, 3));
1369 command_print(cmd_ctx, "sequencer %spresent",
1370 (buf_get_u32(etm_config_reg->value, 16, 1) == 1) ? "" : "not ");
1371 command_print(cmd_ctx, "number of ext. inputs: %i", buf_get_u32(etm_config_reg->value, 17, 3));
1372 command_print(cmd_ctx, "number of ext. outputs: %i", buf_get_u32(etm_config_reg->value, 20, 3));
1373 command_print(cmd_ctx, "FIFO full %spresent",
1374 (buf_get_u32(etm_config_reg->value, 23, 1) == 1) ? "" : "not ");
1375 command_print(cmd_ctx, "protocol version: %i", buf_get_u32(etm_config_reg->value, 28, 3));
1377 etm_get_reg(etm_sys_config_reg);
1379 switch (buf_get_u32(etm_sys_config_reg->value, 0, 3))
1391 command_print(cmd_ctx, "max. port size: %i", max_port_size);
1393 command_print(cmd_ctx, "half-rate clocking %ssupported",
1394 (buf_get_u32(etm_sys_config_reg->value, 3, 1) == 1) ? "" : "not ");
1395 command_print(cmd_ctx, "full-rate clocking %ssupported",
1396 (buf_get_u32(etm_sys_config_reg->value, 4, 1) == 1) ? "" : "not ");
1397 command_print(cmd_ctx, "normal trace format %ssupported",
1398 (buf_get_u32(etm_sys_config_reg->value, 5, 1) == 1) ? "" : "not ");
1399 command_print(cmd_ctx, "multiplex trace format %ssupported",
1400 (buf_get_u32(etm_sys_config_reg->value, 6, 1) == 1) ? "" : "not ");
1401 command_print(cmd_ctx, "demultiplex trace format %ssupported",
1402 (buf_get_u32(etm_sys_config_reg->value, 7, 1) == 1) ? "" : "not ");
1403 command_print(cmd_ctx, "FIFO full %ssupported",
1404 (buf_get_u32(etm_sys_config_reg->value, 8, 1) == 1) ? "" : "not ");
1409 int handle_etm_status_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1412 armv4_5_common_t *armv4_5;
1413 arm7_9_common_t *arm7_9;
1414 trace_status_t trace_status;
1416 target = get_current_target(cmd_ctx);
1418 if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1420 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1424 if (!arm7_9->etm_ctx)
1426 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1430 trace_status = arm7_9->etm_ctx->capture_driver->status(arm7_9->etm_ctx);
1432 if (trace_status == TRACE_IDLE)
1434 command_print(cmd_ctx, "tracing is idle");
1438 static char *completed = " completed";
1439 static char *running = " is running";
1440 static char *overflowed = ", trace overflowed";
1441 static char *triggered = ", trace triggered";
1443 command_print(cmd_ctx, "trace collection%s%s%s",
1444 (trace_status & TRACE_RUNNING) ? running : completed,
1445 (trace_status & TRACE_OVERFLOWED) ? overflowed : "",
1446 (trace_status & TRACE_TRIGGERED) ? triggered : "");
1448 if (arm7_9->etm_ctx->trace_depth > 0)
1450 command_print(cmd_ctx, "%i frames of trace data read", arm7_9->etm_ctx->trace_depth);
1457 int handle_etm_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1460 armv4_5_common_t *armv4_5;
1461 arm7_9_common_t *arm7_9;
1462 etm_context_t *etm_ctx;
1466 command_print(cmd_ctx, "usage: etm image <file> [base address] [type]");
1470 target = get_current_target(cmd_ctx);
1472 if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1474 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1478 if (!(etm_ctx = arm7_9->etm_ctx))
1480 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1486 image_close(etm_ctx->image);
1487 free(etm_ctx->image);
1488 command_print(cmd_ctx, "previously loaded image found and closed");
1491 etm_ctx->image = malloc(sizeof(image_t));
1492 etm_ctx->image->base_address_set = 0;
1493 etm_ctx->image->start_address_set = 0;
1495 /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
1498 etm_ctx->image->base_address_set = 1;
1499 etm_ctx->image->base_address = strtoul(args[1], NULL, 0);
1503 etm_ctx->image->base_address_set = 0;
1506 if (image_open(etm_ctx->image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
1508 command_print(cmd_ctx, "image opening error: %s", etm_ctx->image->error_str);
1509 free(etm_ctx->image);
1510 etm_ctx->image = NULL;
1517 int handle_etm_dump_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1521 armv4_5_common_t *armv4_5;
1522 arm7_9_common_t *arm7_9;
1523 etm_context_t *etm_ctx;
1528 command_print(cmd_ctx, "usage: etm dump <file>");
1532 target = get_current_target(cmd_ctx);
1534 if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1536 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1540 if (!(etm_ctx = arm7_9->etm_ctx))
1542 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1546 if (etm_ctx->capture_driver->status == TRACE_IDLE)
1548 command_print(cmd_ctx, "trace capture wasn't enabled, no trace data captured");
1552 if (etm_ctx->capture_driver->status(etm_ctx) & TRACE_RUNNING)
1554 /* TODO: if on-the-fly capture is to be supported, this needs to be changed */
1555 command_print(cmd_ctx, "trace capture not completed");
1559 /* read the trace data if it wasn't read already */
1560 if (etm_ctx->trace_depth == 0)
1561 etm_ctx->capture_driver->read_trace(etm_ctx);
1563 if (fileio_open(&file, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
1565 command_print(cmd_ctx, "file open error: %s", file.error_str);
1569 fileio_write_u32(&file, etm_ctx->capture_status);
1570 fileio_write_u32(&file, etm_ctx->portmode);
1571 fileio_write_u32(&file, etm_ctx->tracemode);
1572 fileio_write_u32(&file, etm_ctx->trace_depth);
1574 for (i = 0; i < etm_ctx->trace_depth; i++)
1576 fileio_write_u32(&file, etm_ctx->trace_data[i].pipestat);
1577 fileio_write_u32(&file, etm_ctx->trace_data[i].packet);
1578 fileio_write_u32(&file, etm_ctx->trace_data[i].flags);
1581 fileio_close(&file);
1586 int handle_etm_load_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1590 armv4_5_common_t *armv4_5;
1591 arm7_9_common_t *arm7_9;
1592 etm_context_t *etm_ctx;
1597 command_print(cmd_ctx, "usage: etm load <file>");
1601 target = get_current_target(cmd_ctx);
1603 if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1605 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1609 if (!(etm_ctx = arm7_9->etm_ctx))
1611 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1615 if (etm_ctx->capture_driver->status(etm_ctx) & TRACE_RUNNING)
1617 command_print(cmd_ctx, "trace capture running, stop first");
1621 if (fileio_open(&file, args[0], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
1623 command_print(cmd_ctx, "file open error: %s", file.error_str);
1629 command_print(cmd_ctx, "size isn't a multiple of 4, no valid trace data");
1633 if (etm_ctx->trace_depth > 0)
1635 free(etm_ctx->trace_data);
1638 fileio_read_u32(&file, &etm_ctx->capture_status);
1639 fileio_read_u32(&file, &etm_ctx->portmode);
1640 fileio_read_u32(&file, &etm_ctx->tracemode);
1641 fileio_read_u32(&file, &etm_ctx->trace_depth);
1643 etm_ctx->trace_data = malloc(sizeof(etmv1_trace_data_t) * etm_ctx->trace_depth);
1645 for (i = 0; i < etm_ctx->trace_depth; i++)
1647 u32 pipestat, packet, flags;
1648 fileio_read_u32(&file, &pipestat);
1649 fileio_read_u32(&file, &packet);
1650 fileio_read_u32(&file, &flags);
1651 etm_ctx->trace_data[i].pipestat = pipestat & 0xff;
1652 etm_ctx->trace_data[i].packet = packet & 0xffff;
1653 etm_ctx->trace_data[i].flags = flags;
1656 fileio_close(&file);
1661 int handle_etm_trigger_percent_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1664 armv4_5_common_t *armv4_5;
1665 arm7_9_common_t *arm7_9;
1666 etm_context_t *etm_ctx;
1668 target = get_current_target(cmd_ctx);
1670 if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1672 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1676 if (!(etm_ctx = arm7_9->etm_ctx))
1678 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1684 u32 new_value = strtoul(args[0], NULL, 0);
1686 if ((new_value < 2) || (new_value > 100))
1688 command_print(cmd_ctx, "valid settings are 2% to 100%");
1692 etm_ctx->trigger_percent = new_value;
1696 command_print(cmd_ctx, "%i percent of the tracebuffer reserved for after the trigger", etm_ctx->trigger_percent);
1701 int handle_etm_start_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1704 armv4_5_common_t *armv4_5;
1705 arm7_9_common_t *arm7_9;
1706 etm_context_t *etm_ctx;
1707 reg_t *etm_ctrl_reg;
1709 target = get_current_target(cmd_ctx);
1711 if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1713 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1717 if (!(etm_ctx = arm7_9->etm_ctx))
1719 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1723 /* invalidate old tracing data */
1724 arm7_9->etm_ctx->capture_status = TRACE_IDLE;
1725 if (arm7_9->etm_ctx->trace_depth > 0)
1727 free(arm7_9->etm_ctx->trace_data);
1729 arm7_9->etm_ctx->trace_depth = 0;
1731 etm_ctrl_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_CTRL];
1732 etm_get_reg(etm_ctrl_reg);
1734 /* Clear programming bit (10), set port selection bit (11) */
1735 buf_set_u32(etm_ctrl_reg->value, 10, 2, 0x2);
1737 etm_store_reg(etm_ctrl_reg);
1738 jtag_execute_queue();
1740 etm_ctx->capture_driver->start_capture(etm_ctx);
1745 int handle_etm_stop_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1748 armv4_5_common_t *armv4_5;
1749 arm7_9_common_t *arm7_9;
1750 etm_context_t *etm_ctx;
1751 reg_t *etm_ctrl_reg;
1753 target = get_current_target(cmd_ctx);
1755 if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1757 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1761 if (!(etm_ctx = arm7_9->etm_ctx))
1763 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1767 etm_ctrl_reg = &arm7_9->etm_ctx->reg_cache->reg_list[ETM_CTRL];
1768 etm_get_reg(etm_ctrl_reg);
1770 /* Set programming bit (10), clear port selection bit (11) */
1771 buf_set_u32(etm_ctrl_reg->value, 10, 2, 0x1);
1773 etm_store_reg(etm_ctrl_reg);
1774 jtag_execute_queue();
1776 etm_ctx->capture_driver->stop_capture(etm_ctx);
1781 int handle_etm_analyze_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1784 armv4_5_common_t *armv4_5;
1785 arm7_9_common_t *arm7_9;
1786 etm_context_t *etm_ctx;
1789 target = get_current_target(cmd_ctx);
1791 if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK)
1793 command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target");
1797 if (!(etm_ctx = arm7_9->etm_ctx))
1799 command_print(cmd_ctx, "current target doesn't have an ETM configured");
1803 if ((retval = etmv1_analyze_trace(etm_ctx, cmd_ctx)) != ERROR_OK)
1807 case ERROR_ETM_ANALYSIS_FAILED:
1808 command_print(cmd_ctx, "further analysis failed (corrupted trace data or just end of data");
1810 case ERROR_TRACE_INSTRUCTION_UNAVAILABLE:
1811 command_print(cmd_ctx, "no instruction for current address available, analysis aborted");
1813 case ERROR_TRACE_IMAGE_UNAVAILABLE:
1814 command_print(cmd_ctx, "no image available for trace analysis");
1817 command_print(cmd_ctx, "unknown error: %i", retval);
1824 int etm_register_commands(struct command_context_s *cmd_ctx)
1826 etm_cmd = register_command(cmd_ctx, NULL, "etm", NULL, COMMAND_ANY, "Embedded Trace Macrocell");
1828 register_command(cmd_ctx, etm_cmd, "config", handle_etm_config_command, COMMAND_CONFIG, NULL);
1833 int etm_register_user_commands(struct command_context_s *cmd_ctx)
1835 register_command(cmd_ctx, etm_cmd, "tracemode", handle_etm_tracemode_command,
1836 COMMAND_EXEC, "configure trace mode <none|data|address|all> <context id bits> <cycle accurate> <branch output");
1838 register_command(cmd_ctx, etm_cmd, "info", handle_etm_info_command,
1839 COMMAND_EXEC, "display info about the current target's ETM");
1841 register_command(cmd_ctx, etm_cmd, "trigger_percent <percent>", handle_etm_trigger_percent_command,
1842 COMMAND_EXEC, "amount (<percent>) of trace buffer to be filled after the trigger occured");
1843 register_command(cmd_ctx, etm_cmd, "status", handle_etm_status_command,
1844 COMMAND_EXEC, "display current target's ETM status");
1845 register_command(cmd_ctx, etm_cmd, "start", handle_etm_start_command,
1846 COMMAND_EXEC, "start ETM trace collection");
1847 register_command(cmd_ctx, etm_cmd, "stop", handle_etm_stop_command,
1848 COMMAND_EXEC, "stop ETM trace collection");
1850 register_command(cmd_ctx, etm_cmd, "analyze", handle_etm_analyze_command,
1851 COMMAND_EXEC, "anaylze collected ETM trace");
1853 register_command(cmd_ctx, etm_cmd, "image", handle_etm_image_command,
1854 COMMAND_EXEC, "load image from <file> [base address]");
1856 register_command(cmd_ctx, etm_cmd, "dump", handle_etm_dump_command,
1857 COMMAND_EXEC, "dump captured trace data <file>");
1858 register_command(cmd_ctx, etm_cmd, "load", handle_etm_load_command,
1859 COMMAND_EXEC, "load trace data for analysis <file>");