1 /***************************************************************************
2 * Copyright (C) 2011 by Broadcom Corporation *
3 * Evan Hunter - ehunter@broadcom.com *
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 ***************************************************************************/
27 #include "target/target.h"
28 #include "helper/log.h"
29 #include "server/gdb_server.h"
33 static void hex_to_str( char* dst, char * hex_src );
37 extern struct rtos_type FreeRTOS_rtos;
38 extern struct rtos_type ThreadX_rtos;
39 extern struct rtos_type eCos_rtos;
40 extern struct rtos_type Linux_os;
42 static struct rtos_type *rtos_types[] =
51 int rtos_thread_packet(struct connection *connection, char *packet, int packet_size);
53 int rtos_smp_init(struct target *target)
55 if (target->rtos->type->smp_init)
56 return target->rtos->type->smp_init(target);
57 return ERROR_TARGET_INIT_FAILED;
61 int rtos_create(Jim_GetOptInfo *goi, struct target * target)
65 if (! goi->isconfigure) {
68 Jim_WrongNumArgs(goi->interp,
74 Jim_SetResultString(goi->interp,
75 target_type_name(target), -1);
80 free((void *)(target->rtos));
82 // e = Jim_GetOpt_String(goi, &cp, NULL);
83 // target->rtos = strdup(cp);
85 Jim_GetOpt_String(goi, &cp, NULL);
86 /* now does target type exist */
88 if ( 0 == strcmp( cp, "auto") )
90 // auto detection of RTOS
91 target->rtos_auto_detect = true;
97 for (x = 0 ; rtos_types[x] ; x++) {
98 if (0 == strcmp(cp, rtos_types[x]->name)) {
103 if (rtos_types[x] == NULL) {
104 Jim_SetResultFormatted(goi->interp, "Unknown rtos type %s, try one of ", cp);
105 for (x = 0 ; rtos_types[x] ; x++) {
106 if (rtos_types[x + 1]) {
107 Jim_AppendStrings(goi->interp,
108 Jim_GetResult(goi->interp),
112 Jim_AppendStrings(goi->interp,
113 Jim_GetResult(goi->interp),
115 rtos_types[x]->name,NULL);
122 target->rtos = calloc(1,sizeof(struct rtos));
123 target->rtos->type = rtos_types[x];
124 target->rtos->current_threadid = -1;
125 target->rtos->current_thread = 0;
126 target->rtos->symbols = NULL;
127 target->rtos->target = target;
128 /* put default thread handler in linux usecase it is overloaded*/
129 target->rtos->gdb_thread_packet = rtos_thread_packet;
131 if ( 0 != strcmp( cp, "auto") )
133 target->rtos->type->create( target );
139 int gdb_thread_packet(struct connection *connection, char *packet, int packet_size)
141 struct target *target = get_target_from_connection(connection);
142 if (target->rtos == NULL)
143 return rtos_thread_packet(connection, packet, packet_size); /* thread not found*/
144 return target->rtos->gdb_thread_packet(connection, packet, packet_size);
146 /* return -1 if no rtos defined, 0 if rtos and symbol to be asked, 1 if all
147 * symbol have been asked*/
148 int rtos_qsymbol(struct connection *connection, char *packet, int packet_size)
150 struct target *target = get_target_from_connection(connection);
151 if (target->rtos != NULL) {
152 int next_symbol_num = -1;
153 if (target->rtos->symbols == NULL)
154 target->rtos->type->get_symbol_list_to_lookup(&target->rtos->symbols);
155 if (0 == strcmp("qSymbol::", packet))
160 char *hex_name_str = malloc(strlen(packet));
164 char *found = strstr(packet, "qSymbol::");
166 sscanf(packet, "qSymbol:%" SCNx64 ":%s", &value, hex_name_str);
168 /* No value returned by GDB - symbol was not found*/
169 sscanf(packet, "qSymbol::%s", hex_name_str);
170 name_str = (char *) malloc(1 + strlen(hex_name_str) / 2);
172 hex_to_str(name_str, hex_name_str);
174 while ((target->rtos->symbols[symbol_num].symbol_name != NULL)
175 && (0 != strcmp(target->rtos->symbols[symbol_num].symbol_name, name_str)))
178 if (target->rtos->symbols[symbol_num].symbol_name == NULL) {
179 LOG_OUTPUT("ERROR: unknown symbol\r\n");
180 gdb_put_packet(connection, "OK", 2);
184 target->rtos->symbols[symbol_num].address = value;
186 next_symbol_num = symbol_num+1;
191 int symbols_done = 0;
192 if (target->rtos->symbols[next_symbol_num].symbol_name == NULL) {
193 if ((target->rtos_auto_detect == false) ||
194 (1 == target->rtos->type->detect_rtos(target))) {
195 /* Found correct RTOS or not autodetecting */
196 if (target->rtos_auto_detect == true)
197 LOG_OUTPUT("Auto-detected RTOS: %s\r\n", target->rtos->type->name);
200 /* Auto detecting RTOS and currently not found */
201 if (1 != rtos_try_next(target))
202 /* No more RTOS's to try */
206 target->rtos->type->get_symbol_list_to_lookup(&target->rtos->symbols);
210 if (symbols_done == 1)
213 char *symname = target->rtos->symbols[next_symbol_num].symbol_name;
214 char qsymstr[] = "qSymbol:";
215 char *opstring = (char *)malloc(sizeof(qsymstr)+strlen(symname)*2+1);
216 char *posptr = opstring;
217 posptr += sprintf(posptr, "%s", qsymstr);
218 str_to_hex(posptr, symname);
219 gdb_put_packet(connection, opstring, strlen(opstring));
224 gdb_put_packet(connection, "OK", 2);
229 int rtos_thread_packet(struct connection *connection, char *packet, int packet_size)
231 struct target *target = get_target_from_connection(connection);
233 if (strstr(packet, "qThreadExtraInfo,"))
235 if ((target->rtos != NULL) && (target->rtos->thread_details != NULL) && (target->rtos->thread_count != 0))
237 threadid_t threadid = 0;
239 sscanf(packet, "qThreadExtraInfo,%" SCNx64, &threadid );
241 if ((target->rtos != NULL) && (target->rtos->thread_details
244 for (thread_num = 0; thread_num
245 < target->rtos->thread_count; thread_num++) {
246 if (target->rtos->thread_details[thread_num].threadid
248 if (target->rtos->thread_details[thread_num].exists) {
255 gdb_put_packet(connection, "E01", 3); // thread not found
259 struct thread_detail* detail = &target->rtos->thread_details[found];
262 if ( detail->display_str != NULL )
264 str_size += strlen(detail->display_str);
266 if ( detail->thread_name_str != NULL )
268 str_size += strlen(detail->thread_name_str);
270 if ( detail->extra_info_str != NULL )
272 str_size += strlen(detail->extra_info_str);
275 char * tmp_str = (char*) malloc( str_size + 7 );
276 char* tmp_str_ptr = tmp_str;
278 if ( detail->display_str != NULL )
280 tmp_str_ptr += sprintf( tmp_str_ptr, "%s", detail->display_str );
282 if ( detail->thread_name_str != NULL )
284 if ( tmp_str_ptr != tmp_str )
286 tmp_str_ptr += sprintf( tmp_str_ptr, " : " );
288 tmp_str_ptr += sprintf( tmp_str_ptr, "%s", detail->thread_name_str );
290 if ( detail->extra_info_str != NULL )
292 if ( tmp_str_ptr != tmp_str )
294 tmp_str_ptr += sprintf( tmp_str_ptr, " : " );
296 tmp_str_ptr += sprintf( tmp_str_ptr, " : %s", detail->extra_info_str );
299 assert(strlen(tmp_str) ==
300 (size_t) (tmp_str_ptr - tmp_str));
302 char * hex_str = (char*) malloc( strlen(tmp_str)*2 +1 );
303 str_to_hex( hex_str, tmp_str );
305 gdb_put_packet(connection, hex_str, strlen(hex_str));
311 gdb_put_packet(connection, "", 0);
314 else if (strstr(packet, "qSymbol"))
316 if (rtos_qsymbol(connection, packet, packet_size) == 1)
318 target->rtos_auto_detect = false;
319 target->rtos->type->create(target);
320 target->rtos->type->update_threads(target->rtos);
321 /* No more symbols needed */
322 gdb_put_packet(connection, "OK", 2);
326 else if (strstr(packet, "qfThreadInfo"))
329 if ( ( target->rtos != NULL ) && ( target->rtos->thread_count != 0 ) )
332 char* out_str = (char*) malloc(17 * target->rtos->thread_count + 5);
333 char* tmp_str = out_str;
334 tmp_str += sprintf(tmp_str, "m");
335 for (i = 0; i < target->rtos->thread_count; i++) {
337 tmp_str += sprintf(tmp_str, ",");
339 tmp_str += sprintf(tmp_str, "%016" PRIx64,
340 target->rtos->thread_details[i].threadid);
343 gdb_put_packet(connection, out_str, strlen(out_str));
347 gdb_put_packet(connection, "", 0);
352 else if (strstr(packet, "qsThreadInfo"))
354 gdb_put_packet(connection, "l", 1);
357 else if (strstr(packet, "qAttached"))
359 gdb_put_packet(connection, "1", 1);
362 else if (strstr(packet, "qOffsets"))
364 char offsets[] = "Text=0;Data=0;Bss=0";
365 gdb_put_packet(connection, offsets, sizeof(offsets)-1);
368 else if (strstr(packet, "qC"))
370 if( target->rtos!=NULL )
374 size = snprintf(buffer, 15, "QC%08X", (int)target->rtos->current_thread);
375 gdb_put_packet(connection, buffer, size);
379 gdb_put_packet(connection, "QC0", 3);
383 else if ( packet[0] == 'T' ) // Is thread alive?
387 sscanf(packet, "T%" SCNx64, &threadid);
388 if ((target->rtos != NULL) && (target->rtos->thread_details
391 for (thread_num = 0; thread_num
392 < target->rtos->thread_count; thread_num++) {
393 if (target->rtos->thread_details[thread_num].threadid
395 if (target->rtos->thread_details[thread_num].exists) {
402 gdb_put_packet(connection, "OK", 2); // thread alive
404 gdb_put_packet(connection, "E01", 3); // thread not found
408 else if ( packet[0] == 'H') // Set current thread ( 'c' for step and continue, 'g' for all other operations )
410 if ((packet[1] == 'g') && (target->rtos != NULL))
411 sscanf(packet, "Hg%16" SCNx64, &target->rtos->current_threadid);
412 gdb_put_packet(connection, "OK", 2);
416 return GDB_THREAD_PACKET_NOT_CONSUMED;
419 int rtos_get_gdb_reg_list(struct connection *connection)
421 struct target *target = get_target_from_connection(connection);
422 int64_t current_threadid = target->rtos->current_threadid;
423 if ((target->rtos != NULL) &&
424 (current_threadid != -1) &&
425 (current_threadid != 0) &&
426 ((current_threadid != target->rtos->current_thread) ||
427 (target->smp))) /* in smp several current thread are possible */
430 target->rtos->type->get_thread_reg_list( target->rtos, current_threadid, &hex_reg_list );
432 if ( hex_reg_list != NULL )
434 gdb_put_packet(connection, hex_reg_list, strlen(hex_reg_list));
444 int rtos_generic_stack_read( struct target * target, const struct rtos_register_stacking* stacking, int64_t stack_ptr, char ** hex_reg_list )
448 int64_t new_stack_ptr;
454 LOG_OUTPUT("Error: null stack pointer in thread\r\n");
458 uint8_t * stack_data = (uint8_t*) malloc( stacking->stack_registers_size );
459 uint32_t address = stack_ptr;
461 if ( stacking->stack_growth_direction == 1 )
463 address -= stacking->stack_registers_size;
465 retval = target_read_buffer( target, address, stacking->stack_registers_size, stack_data);
466 if ( retval != ERROR_OK )
468 LOG_OUTPUT("Error reading stack frame from FreeRTOS thread\r\n");
472 LOG_OUTPUT("Stack Data :");
473 for(i = 0; i < stacking->stack_registers_size; i++ )
475 LOG_OUTPUT("%02X",stack_data[i]);
479 for( i = 0; i < stacking->num_output_registers; i++ )
481 list_size += stacking->register_offsets[i].width_bits/8;
483 *hex_reg_list = (char*)malloc( list_size*2 +1 );
484 tmp_str_ptr = *hex_reg_list;
485 new_stack_ptr = stack_ptr - stacking->stack_growth_direction * stacking->stack_registers_size;
486 if (stacking->stack_alignment != 0) {
487 /* Align new stack pointer to x byte boundary */
489 (new_stack_ptr & (~((int64_t) stacking->stack_alignment - 1))) +
490 ((stacking->stack_growth_direction == -1) ? stacking->stack_alignment : 0);
492 for( i = 0; i < stacking->num_output_registers; i++ )
495 for ( j = 0; j < stacking->register_offsets[i].width_bits/8; j++ )
497 if ( stacking->register_offsets[i].offset == -1 )
499 tmp_str_ptr += sprintf( tmp_str_ptr, "%02x", 0 );
501 else if ( stacking->register_offsets[i].offset == -2 )
503 tmp_str_ptr += sprintf( tmp_str_ptr, "%02x", ((uint8_t*)&new_stack_ptr)[j] );
507 tmp_str_ptr += sprintf( tmp_str_ptr,"%02x", stack_data[ stacking->register_offsets[i].offset + j ] );
511 // LOG_OUTPUT("Output register string: %s\r\n", *hex_reg_list);
515 int rtos_try_next( struct target * target )
519 if ( target->rtos == NULL )
524 for (x = 0 ; rtos_types[x] ; x++) {
525 if (target->rtos->type == rtos_types[x] ) {
527 if ( rtos_types[x+1] != NULL )
529 target->rtos->type = rtos_types[x+1];
530 if ( target->rtos->symbols != NULL )
532 free( target->rtos->symbols );
538 // No more rtos types
548 static void hex_to_str( char* dst, char * hex_src )
553 while ( hex_src[src_pos] != '\x00' )
555 char hex_char = hex_src[src_pos];
556 char hex_digit_val = (hex_char>='a')?hex_char-'a'+10:(hex_char>='A')?hex_char-'A'+10:hex_char-'0';
557 if ( 0 == (src_pos & 0x01) )
559 dst[dst_pos] = hex_digit_val;
564 ((unsigned char*)dst)[dst_pos] <<= 4;
565 ((unsigned char*)dst)[dst_pos] += hex_digit_val;
573 int str_to_hex(char *hex_dst, char *src)
575 char * posptr = hex_dst;
577 for( i = 0; i < strlen(src); i++)
579 posptr += sprintf( posptr, "%02x", (unsigned char)src[i] );
581 return (posptr-hex_dst);
585 int rtos_update_threads( struct target* target )
587 if ((target->rtos != NULL) && (target->rtos->type != NULL))
589 target->rtos->type->update_threads(target->rtos);