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 ***************************************************************************/
26 #include "target/target.h"
27 #include "helper/log.h"
28 #include "server/gdb_server.h"
30 static void hex_to_str(char *dst
, char *hex_src
);
33 extern struct rtos_type FreeRTOS_rtos
;
34 extern struct rtos_type ThreadX_rtos
;
35 extern struct rtos_type eCos_rtos
;
36 extern struct rtos_type Linux_os
;
38 static struct rtos_type
*rtos_types
[] = {
46 int rtos_thread_packet(struct connection
*connection
, char *packet
, int packet_size
);
48 int rtos_smp_init(struct target
*target
)
50 if (target
->rtos
->type
->smp_init
)
51 return target
->rtos
->type
->smp_init(target
);
52 return ERROR_TARGET_INIT_FAILED
;
55 int rtos_create(Jim_GetOptInfo
*goi
, struct target
*target
)
59 if (!goi
->isconfigure
) {
62 Jim_WrongNumArgs(goi
->interp
,
68 Jim_SetResultString(goi
->interp
,
69 target_type_name(target
), -1);
74 free((void *)(target
->rtos
));
75 /* e = Jim_GetOpt_String(goi,
77 /* target->rtos = strdup(cp); */
79 Jim_GetOpt_String(goi
, &cp
, NULL
);
80 /* now does target type exist */
82 if (0 == strcmp(cp
, "auto")) {
83 /* auto detection of RTOS */
84 target
->rtos_auto_detect
= true;
88 for (x
= 0; rtos_types
[x
]; x
++) {
89 if (0 == strcmp(cp
, rtos_types
[x
]->name
)) {
94 if (rtos_types
[x
] == NULL
) {
95 Jim_SetResultFormatted(goi
->interp
, "Unknown rtos type %s, try one of ",
97 for (x
= 0; rtos_types
[x
]; x
++) {
98 if (rtos_types
[x
+ 1]) {
99 Jim_AppendStrings(goi
->interp
,
100 Jim_GetResult(goi
->interp
),
104 Jim_AppendStrings(goi
->interp
,
105 Jim_GetResult(goi
->interp
),
107 rtos_types
[x
]->name
, NULL
);
114 target
->rtos
= calloc(1, sizeof(struct rtos
));
115 target
->rtos
->type
= rtos_types
[x
];
116 target
->rtos
->current_threadid
= -1;
117 target
->rtos
->current_thread
= 0;
118 target
->rtos
->symbols
= NULL
;
119 target
->rtos
->target
= target
;
120 /* put default thread handler in linux usecase it is overloaded*/
121 target
->rtos
->gdb_thread_packet
= rtos_thread_packet
;
123 if (0 != strcmp(cp
, "auto"))
124 target
->rtos
->type
->create(target
);
129 int gdb_thread_packet(struct connection
*connection
, char *packet
, int packet_size
)
131 struct target
*target
= get_target_from_connection(connection
);
132 if (target
->rtos
== NULL
)
133 return rtos_thread_packet(connection
, packet
, packet_size
); /* thread not
135 return target
->rtos
->gdb_thread_packet(connection
, packet
, packet_size
);
137 /* return -1 if no rtos defined, 0 if rtos and symbol to be asked, 1 if all
138 * symbol have been asked*/
139 int rtos_qsymbol(struct connection
*connection
, char *packet
, int packet_size
)
141 struct target
*target
= get_target_from_connection(connection
);
142 if (target
->rtos
!= NULL
) {
143 int next_symbol_num
= -1;
144 if (target
->rtos
->symbols
== NULL
)
145 target
->rtos
->type
->get_symbol_list_to_lookup(&target
->rtos
->symbols
);
146 if (0 == strcmp("qSymbol::", packet
))
151 char *hex_name_str
= malloc(strlen(packet
));
155 char *found
= strstr(packet
, "qSymbol::");
157 sscanf(packet
, "qSymbol:%" SCNx64
":%s", &value
, hex_name_str
);
159 /* No value returned by GDB - symbol was not found*/
160 sscanf(packet
, "qSymbol::%s", hex_name_str
);
161 name_str
= (char *) malloc(1 + strlen(hex_name_str
) / 2);
163 hex_to_str(name_str
, hex_name_str
);
165 while ((target
->rtos
->symbols
[symbol_num
].symbol_name
!= NULL
) &&
166 (0 != strcmp(target
->rtos
->symbols
[symbol_num
].symbol_name
, name_str
)))
169 if (target
->rtos
->symbols
[symbol_num
].symbol_name
== NULL
) {
170 LOG_OUTPUT("ERROR: unknown symbol\r\n");
171 gdb_put_packet(connection
, "OK", 2);
175 target
->rtos
->symbols
[symbol_num
].address
= value
;
177 next_symbol_num
= symbol_num
+1;
182 int symbols_done
= 0;
183 if (target
->rtos
->symbols
[next_symbol_num
].symbol_name
== NULL
) {
184 if ((target
->rtos_auto_detect
== false) ||
185 (1 == target
->rtos
->type
->detect_rtos(target
))) {
186 /* Found correct RTOS or not autodetecting */
187 if (target
->rtos_auto_detect
== true)
188 LOG_OUTPUT("Auto-detected RTOS: %s\r\n",
189 target
->rtos
->type
->name
);
192 /* Auto detecting RTOS and currently not found */
193 if (1 != rtos_try_next(target
))
194 /* No more RTOS's to try */
198 target
->rtos
->type
->get_symbol_list_to_lookup(
199 &target
->rtos
->symbols
);
203 if (symbols_done
== 1)
206 char *symname
= target
->rtos
->symbols
[next_symbol_num
].symbol_name
;
207 char qsymstr
[] = "qSymbol:";
208 char *opstring
= (char *)malloc(sizeof(qsymstr
)+strlen(symname
)*2+1);
209 char *posptr
= opstring
;
210 posptr
+= sprintf(posptr
, "%s", qsymstr
);
211 str_to_hex(posptr
, symname
);
212 gdb_put_packet(connection
, opstring
, strlen(opstring
));
217 gdb_put_packet(connection
, "OK", 2);
221 int rtos_thread_packet(struct connection
*connection
, char *packet
, int packet_size
)
223 struct target
*target
= get_target_from_connection(connection
);
225 if (strstr(packet
, "qThreadExtraInfo,")) {
226 if ((target
->rtos
!= NULL
) && (target
->rtos
->thread_details
!= NULL
) &&
227 (target
->rtos
->thread_count
!= 0)) {
228 threadid_t threadid
= 0;
230 sscanf(packet
, "qThreadExtraInfo,%" SCNx64
, &threadid
);
232 if ((target
->rtos
!= NULL
) && (target
->rtos
->thread_details
!= NULL
)) {
234 for (thread_num
= 0; thread_num
< target
->rtos
->thread_count
; thread_num
++) {
235 if (target
->rtos
->thread_details
[thread_num
].threadid
== threadid
) {
236 if (target
->rtos
->thread_details
[thread_num
].exists
)
242 gdb_put_packet(connection
, "E01", 3); /* thread not found */
246 struct thread_detail
*detail
= &target
->rtos
->thread_details
[found
];
249 if (detail
->display_str
!= NULL
)
250 str_size
+= strlen(detail
->display_str
);
251 if (detail
->thread_name_str
!= NULL
)
252 str_size
+= strlen(detail
->thread_name_str
);
253 if (detail
->extra_info_str
!= NULL
)
254 str_size
+= strlen(detail
->extra_info_str
);
256 char *tmp_str
= (char *) malloc(str_size
+ 7);
257 char *tmp_str_ptr
= tmp_str
;
259 if (detail
->display_str
!= NULL
)
260 tmp_str_ptr
+= sprintf(tmp_str_ptr
, "%s", detail
->display_str
);
261 if (detail
->thread_name_str
!= NULL
) {
262 if (tmp_str_ptr
!= tmp_str
)
263 tmp_str_ptr
+= sprintf(tmp_str_ptr
, " : ");
264 tmp_str_ptr
+= sprintf(tmp_str_ptr
, "%s", detail
->thread_name_str
);
266 if (detail
->extra_info_str
!= NULL
) {
267 if (tmp_str_ptr
!= tmp_str
)
268 tmp_str_ptr
+= sprintf(tmp_str_ptr
, " : ");
270 sprintf(tmp_str_ptr
, " : %s", detail
->extra_info_str
);
273 assert(strlen(tmp_str
) ==
274 (size_t) (tmp_str_ptr
- tmp_str
));
276 char *hex_str
= (char *) malloc(strlen(tmp_str
)*2 + 1);
277 str_to_hex(hex_str
, tmp_str
);
279 gdb_put_packet(connection
, hex_str
, strlen(hex_str
));
285 gdb_put_packet(connection
, "", 0);
287 } else if (strstr(packet
, "qSymbol")) {
288 if (rtos_qsymbol(connection
, packet
, packet_size
) == 1) {
289 target
->rtos_auto_detect
= false;
290 target
->rtos
->type
->create(target
);
291 target
->rtos
->type
->update_threads(target
->rtos
);
292 /* No more symbols needed */
293 gdb_put_packet(connection
, "OK", 2);
296 } else if (strstr(packet
, "qfThreadInfo")) {
298 if ((target
->rtos
!= NULL
) && (target
->rtos
->thread_count
!= 0)) {
300 char *out_str
= (char *) malloc(17 * target
->rtos
->thread_count
+ 5);
301 char *tmp_str
= out_str
;
302 tmp_str
+= sprintf(tmp_str
, "m");
303 for (i
= 0; i
< target
->rtos
->thread_count
; i
++) {
305 tmp_str
+= sprintf(tmp_str
, ",");
306 tmp_str
+= sprintf(tmp_str
, "%016" PRIx64
,
307 target
->rtos
->thread_details
[i
].threadid
);
310 gdb_put_packet(connection
, out_str
, strlen(out_str
));
312 gdb_put_packet(connection
, "", 0);
315 } else if (strstr(packet
, "qsThreadInfo")) {
316 gdb_put_packet(connection
, "l", 1);
318 } else if (strstr(packet
, "qAttached")) {
319 gdb_put_packet(connection
, "1", 1);
321 } else if (strstr(packet
, "qOffsets")) {
322 char offsets
[] = "Text=0;Data=0;Bss=0";
323 gdb_put_packet(connection
, offsets
, sizeof(offsets
)-1);
325 } else if (strstr(packet
, "qC")) {
326 if (target
->rtos
!= NULL
) {
329 size
= snprintf(buffer
, 15, "QC%08X", (int)target
->rtos
->current_thread
);
330 gdb_put_packet(connection
, buffer
, size
);
332 gdb_put_packet(connection
, "QC0", 3);
334 } else if (packet
[0] == 'T') { /* Is thread alive? */
337 sscanf(packet
, "T%" SCNx64
, &threadid
);
338 if ((target
->rtos
!= NULL
) && (target
->rtos
->thread_details
!= NULL
)) {
340 for (thread_num
= 0; thread_num
< target
->rtos
->thread_count
; thread_num
++) {
341 if (target
->rtos
->thread_details
[thread_num
].threadid
== threadid
) {
342 if (target
->rtos
->thread_details
[thread_num
].exists
)
348 gdb_put_packet(connection
, "OK", 2); /* thread alive */
350 gdb_put_packet(connection
, "E01", 3); /* thread not found */
352 } else if (packet
[0] == 'H') { /* Set current thread ( 'c' for step and continue, 'g' for
353 * all other operations ) */
354 if ((packet
[1] == 'g') && (target
->rtos
!= NULL
))
355 sscanf(packet
, "Hg%16" SCNx64
, &target
->rtos
->current_threadid
);
356 gdb_put_packet(connection
, "OK", 2);
360 return GDB_THREAD_PACKET_NOT_CONSUMED
;
363 int rtos_get_gdb_reg_list(struct connection
*connection
)
365 struct target
*target
= get_target_from_connection(connection
);
366 int64_t current_threadid
= target
->rtos
->current_threadid
;
367 if ((target
->rtos
!= NULL
) && (current_threadid
!= -1) &&
368 (current_threadid
!= 0) &&
369 ((current_threadid
!= target
->rtos
->current_thread
) ||
370 (target
->smp
))) { /* in smp several current thread are possible */
372 target
->rtos
->type
->get_thread_reg_list(target
->rtos
,
376 if (hex_reg_list
!= NULL
) {
377 gdb_put_packet(connection
, hex_reg_list
, strlen(hex_reg_list
));
385 int rtos_generic_stack_read(struct target
*target
,
386 const struct rtos_register_stacking
*stacking
,
392 int64_t new_stack_ptr
;
396 if (stack_ptr
== 0) {
397 LOG_OUTPUT("Error: null stack pointer in thread\r\n");
401 uint8_t *stack_data
= (uint8_t *) malloc(stacking
->stack_registers_size
);
402 uint32_t address
= stack_ptr
;
404 if (stacking
->stack_growth_direction
== 1)
405 address
-= stacking
->stack_registers_size
;
406 retval
= target_read_buffer(target
, address
, stacking
->stack_registers_size
, stack_data
);
407 if (retval
!= ERROR_OK
) {
408 LOG_OUTPUT("Error reading stack frame from FreeRTOS thread\r\n");
412 LOG_OUTPUT("Stack Data :");
413 for (i
= 0; i
< stacking
->stack_registers_size
; i
++)
414 LOG_OUTPUT("%02X", stack_data
[i
]);
417 for (i
= 0; i
< stacking
->num_output_registers
; i
++)
418 list_size
+= stacking
->register_offsets
[i
].width_bits
/8;
419 *hex_reg_list
= (char *)malloc(list_size
*2 + 1);
420 tmp_str_ptr
= *hex_reg_list
;
421 new_stack_ptr
= stack_ptr
- stacking
->stack_growth_direction
*
422 stacking
->stack_registers_size
;
423 if (stacking
->stack_alignment
!= 0) {
424 /* Align new stack pointer to x byte boundary */
426 (new_stack_ptr
& (~((int64_t) stacking
->stack_alignment
- 1))) +
427 ((stacking
->stack_growth_direction
== -1) ? stacking
->stack_alignment
: 0);
429 for (i
= 0; i
< stacking
->num_output_registers
; i
++) {
431 for (j
= 0; j
< stacking
->register_offsets
[i
].width_bits
/8; j
++) {
432 if (stacking
->register_offsets
[i
].offset
== -1)
433 tmp_str_ptr
+= sprintf(tmp_str_ptr
, "%02x", 0);
434 else if (stacking
->register_offsets
[i
].offset
== -2)
435 tmp_str_ptr
+= sprintf(tmp_str_ptr
, "%02x",
436 ((uint8_t *)&new_stack_ptr
)[j
]);
438 tmp_str_ptr
+= sprintf(tmp_str_ptr
, "%02x",
439 stack_data
[stacking
->register_offsets
[i
].offset
+ j
]);
442 /* LOG_OUTPUT("Output register string: %s\r\n", *hex_reg_list); */
446 int rtos_try_next(struct target
*target
)
450 if (target
->rtos
== NULL
)
453 for (x
= 0; rtos_types
[x
]; x
++) {
454 if (target
->rtos
->type
== rtos_types
[x
]) {
456 if (rtos_types
[x
+1] != NULL
) {
457 target
->rtos
->type
= rtos_types
[x
+1];
458 if (target
->rtos
->symbols
!= NULL
)
459 free(target
->rtos
->symbols
);
462 /* No more rtos types */
472 static void hex_to_str(char *dst
, char *hex_src
)
477 while (hex_src
[src_pos
] != '\x00') {
478 char hex_char
= hex_src
[src_pos
];
482 10 : (hex_char
>= 'A') ? hex_char
-'A'+10 : hex_char
-'0';
483 if (0 == (src_pos
& 0x01)) {
484 dst
[dst_pos
] = hex_digit_val
;
487 ((unsigned char *)dst
)[dst_pos
] <<= 4;
488 ((unsigned char *)dst
)[dst_pos
] += hex_digit_val
;
496 int str_to_hex(char *hex_dst
, char *src
)
498 char *posptr
= hex_dst
;
500 for (i
= 0; i
< strlen(src
); i
++)
501 posptr
+= sprintf(posptr
, "%02x", (unsigned char)src
[i
]);
502 return posptr
- hex_dst
;
505 int rtos_update_threads(struct target
*target
)
507 if ((target
->rtos
!= NULL
) && (target
->rtos
->type
!= NULL
))
508 target
->rtos
->type
->update_threads(target
->rtos
);