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"
32 static int64_t current_threadid
= -1;
34 static void hex_to_str( char* dst
, char * hex_src
);
35 static int str_to_hex( char* hex_dst
, char* src
);
39 extern struct rtos_type FreeRTOS_rtos
;
40 extern struct rtos_type ThreadX_rtos
;
41 extern struct rtos_type eCos_rtos
;
43 static struct rtos_type
*rtos_types
[] =
52 int rtos_create(Jim_GetOptInfo
*goi
, struct target
* target
)
57 if (! goi
->isconfigure
) {
60 Jim_WrongNumArgs(goi
->interp
,
66 Jim_SetResultString(goi
->interp
,
67 target_type_name(target
), -1);
72 free((void *)(target
->rtos
));
74 // e = Jim_GetOpt_String(goi, &cp, NULL);
75 // target->rtos = strdup(cp);
77 Jim_GetOpt_String(goi
, &cp
, NULL
);
78 /* now does target type exist */
80 if ( 0 == strcmp( cp
, "auto") )
82 // auto detection of RTOS
83 target
->rtos_auto_detect
= true;
89 for (x
= 0 ; rtos_types
[x
] ; x
++) {
90 if (0 == strcmp(cp
, rtos_types
[x
]->name
)) {
95 if (rtos_types
[x
] == NULL
) {
96 Jim_SetResultFormatted(goi
->interp
, "Unknown rtos type %s, try one of ", cp
);
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_thread
= 0;
117 target
->rtos
->symbols
= NULL
;
118 target
->rtos
->target
= target
;
120 if ( 0 != strcmp( cp
, "auto") )
122 target
->rtos
->type
->create( target
);
131 int gdb_thread_packet(struct connection
*connection
, struct target
*target
, char *packet
, int packet_size
)
133 if (strstr(packet
, "qP"))
135 #define TAG_THREADID 1 /* Echo the thread identifier */
136 #define TAG_EXISTS 2 /* Is this process defined enough to
137 fetch registers and its stack */
138 #define TAG_DISPLAY 4 /* A short thing maybe to put on a window */
139 #define TAG_THREADNAME 8 /* string, maps 1-to-1 with a thread is */
140 #define TAG_MOREDISPLAY 16 /* Whatever the kernel wants to say about */
142 // TODO: need to scanf the mode variable (or it with the tags), and the threadid
145 threadid_t threadid
= 0;
146 struct thread_detail
* detail
;
147 sscanf(packet
, "qP%8lx%16" SCNx64
, &mode
, &threadid
);
152 if ((target
->rtos
!= NULL
) && (target
->rtos
->thread_details
155 for (thread_num
= 0; thread_num
156 < target
->rtos
->thread_count
; thread_num
++) {
157 if (target
->rtos
->thread_details
[thread_num
].threadid
159 if (target
->rtos
->thread_details
[thread_num
].exists
) {
166 gdb_put_packet(connection
, "E01", 3); // thread not found
170 detail
= &target
->rtos
->thread_details
[found
];
172 if ( detail
->display_str
!= NULL
)
176 if ( detail
->thread_name_str
!= NULL
)
178 mode
&= TAG_THREADNAME
;
180 if ( detail
->extra_info_str
!= NULL
)
182 mode
&= TAG_MOREDISPLAY
;
186 mode
&= TAG_THREADID
| TAG_EXISTS
;
188 char thread_str
[1000];
190 sprintf(thread_str
, "%08lx", mode
);
191 sprintf(thread_str
, "%016" PRIx64
, threadid
);
194 if (mode
& TAG_THREADID
) {
195 sprintf(thread_str
, "%08" PRIx32
"10%016" PRIx64
, TAG_THREADID
, threadid
);
197 if (mode
& TAG_EXISTS
) {
198 sprintf(thread_str
, "%08" PRIx32
"08%08" PRIx32
, TAG_EXISTS
, (detail
->exists
==true)?1:0);
200 if (mode
& TAG_DISPLAY
) {
201 sprintf(thread_str
, "%08" PRIx32
"%02x%s", TAG_DISPLAY
, (unsigned char)strlen(detail
->display_str
), detail
->display_str
);
203 if (mode
& TAG_MOREDISPLAY
) {
204 sprintf(thread_str
, "%08" PRIx32
"%02x%s", TAG_MOREDISPLAY
, (unsigned char)strlen(detail
->extra_info_str
), detail
->extra_info_str
);
206 if (mode
& TAG_THREADNAME
) {
207 sprintf(thread_str
, "%08" PRIx32
"%02x%s", TAG_THREADNAME
, (unsigned char)strlen(detail
->thread_name_str
), detail
->thread_name_str
);
210 //gdb_put_packet(connection, tmpstr, sizeof(tmpstr)-1);
211 gdb_put_packet(connection
, thread_str
, strlen(thread_str
));
213 // gdb_put_packet(connection, "", 0);
214 // gdb_put_packet(connection, "OK", 2); // all threads alive
217 else if (strstr(packet
, "qThreadExtraInfo,"))
219 if ((target
->rtos
!= NULL
) && (target
->rtos
->thread_details
!= NULL
) && (target
->rtos
->thread_count
!= 0))
221 threadid_t threadid
= 0;
223 sscanf(packet
, "qThreadExtraInfo,%" SCNx64
, &threadid
);
225 if ((target
->rtos
!= NULL
) && (target
->rtos
->thread_details
228 for (thread_num
= 0; thread_num
229 < target
->rtos
->thread_count
; thread_num
++) {
230 if (target
->rtos
->thread_details
[thread_num
].threadid
232 if (target
->rtos
->thread_details
[thread_num
].exists
) {
239 gdb_put_packet(connection
, "E01", 3); // thread not found
243 struct thread_detail
* detail
= &target
->rtos
->thread_details
[found
];
246 if ( detail
->display_str
!= NULL
)
248 str_size
+= strlen(detail
->display_str
);
250 if ( detail
->thread_name_str
!= NULL
)
252 str_size
+= strlen(detail
->thread_name_str
);
254 if ( detail
->extra_info_str
!= NULL
)
256 str_size
+= strlen(detail
->extra_info_str
);
259 char * tmp_str
= (char*) malloc( str_size
+ 7 );
260 char* tmp_str_ptr
= tmp_str
;
262 if ( detail
->display_str
!= NULL
)
264 tmp_str_ptr
+= sprintf( tmp_str_ptr
, "%s", detail
->display_str
);
266 if ( detail
->thread_name_str
!= NULL
)
268 if ( tmp_str_ptr
!= tmp_str
)
270 tmp_str_ptr
+= sprintf( tmp_str_ptr
, " : " );
272 tmp_str_ptr
+= sprintf( tmp_str_ptr
, "%s", detail
->thread_name_str
);
274 if ( detail
->extra_info_str
!= NULL
)
276 if ( tmp_str_ptr
!= tmp_str
)
278 tmp_str_ptr
+= sprintf( tmp_str_ptr
, " : " );
280 tmp_str_ptr
+= sprintf( tmp_str_ptr
, " : %s", detail
->extra_info_str
);
283 char * hex_str
= (char*) malloc( strlen(tmp_str
)*2 +1 );
284 str_to_hex( hex_str
, tmp_str
);
286 gdb_put_packet(connection
, hex_str
, strlen(hex_str
));
292 gdb_put_packet(connection
, "", 0);
295 else if (strstr(packet
, "qSymbol"))
297 if ( target
->rtos
!= NULL
)
299 int next_symbol_num
= -1;
300 if (target
->rtos
->symbols
== NULL
)
302 target
->rtos
->type
->get_symbol_list_to_lookup( &target
->rtos
->symbols
);
304 if (0 == strcmp( "qSymbol::", packet
) )
312 char * hex_name_str
= malloc( strlen(packet
));
316 char* found
= strstr( packet
, "qSymbol::" );
319 sscanf(packet
, "qSymbol:%" SCNx64
":%s", &value
, hex_name_str
);
323 // No value returned by GDB - symbol was not found
324 sscanf(packet
, "qSymbol::%s", hex_name_str
);
326 name_str
= (char*) malloc( 1+ strlen(hex_name_str
) / 2 );
328 hex_to_str( name_str
, hex_name_str
);
332 while ( ( target
->rtos
->symbols
[ symbol_num
].symbol_name
!= NULL
) && ( 0 != strcmp( target
->rtos
->symbols
[ symbol_num
].symbol_name
, name_str
) ) )
338 if ( target
->rtos
->symbols
[ symbol_num
].symbol_name
== NULL
)
340 LOG_OUTPUT("ERROR: unknown symbol\r\n");
341 gdb_put_packet(connection
, "OK", 2);
345 target
->rtos
->symbols
[ symbol_num
].address
= value
;
347 next_symbol_num
= symbol_num
+1;
348 free( hex_name_str
);
353 int symbols_done
= 0;
354 if ( target
->rtos
->symbols
[ next_symbol_num
].symbol_name
== NULL
)
356 if ( ( target
->rtos_auto_detect
== false ) ||
357 ( 1 == target
->rtos
->type
->detect_rtos( target
) ) )
359 // Found correct RTOS or not autodetecting
360 if ( target
->rtos_auto_detect
== true )
362 LOG_OUTPUT( "Auto-detected RTOS: %s\r\n",target
->rtos
->type
->name
);
368 // Auto detecting RTOS and currently not found
369 if( 1 != rtos_try_next( target
) )
371 // No more RTOS's to try
377 target
->rtos
->type
->get_symbol_list_to_lookup( &target
->rtos
->symbols
);
384 if ( symbols_done
== 1 )
386 target
->rtos_auto_detect
= false;
387 target
->rtos
->type
->create( target
);
388 target
->rtos
->type
->update_threads(target
->rtos
);
389 // No more symbols needed
390 gdb_put_packet(connection
, "OK", 2);
396 char* symname
= target
->rtos
->symbols
[ next_symbol_num
].symbol_name
;
397 char qsymstr
[] = "qSymbol:";
398 char * opstring
= (char*)malloc(sizeof(qsymstr
)+strlen(symname
)*2+1);
399 char * posptr
= opstring
;
400 posptr
+= sprintf( posptr
, "%s", qsymstr
);
401 str_to_hex( posptr
, symname
);
402 gdb_put_packet(connection
, opstring
, strlen(opstring
));
408 gdb_put_packet(connection
, "OK", 2);
411 else if (strstr(packet
, "qfThreadInfo"))
414 if ( ( target
->rtos
!= NULL
) && ( target
->rtos
->thread_count
!= 0 ) )
417 char* out_str
= (char*) malloc(17 * target
->rtos
->thread_count
+ 5);
418 char* tmp_str
= out_str
;
419 tmp_str
+= sprintf(tmp_str
, "m");
420 for (i
= 0; i
< target
->rtos
->thread_count
; i
++) {
422 tmp_str
+= sprintf(tmp_str
, ",");
424 tmp_str
+= sprintf(tmp_str
, "%016" PRIx64
,
425 target
->rtos
->thread_details
[i
].threadid
);
428 gdb_put_packet(connection
, out_str
, strlen(out_str
));
432 gdb_put_packet(connection
, "", 0);
437 else if (strstr(packet
, "qsThreadInfo"))
439 gdb_put_packet(connection
, "l", 1);
442 else if (strstr(packet
, "qAttached"))
444 gdb_put_packet(connection
, "1", 1);
447 else if (strstr(packet
, "qOffsets"))
449 char offsets
[] = "Text=0;Data=0;Bss=0";
450 gdb_put_packet(connection
, offsets
, sizeof(offsets
)-1);
453 else if (strstr(packet
, "qC"))
455 if( target
->rtos
!=NULL
)
459 size
= snprintf(buffer
, 15, "QC%08X", (int)target
->rtos
->current_thread
);
460 gdb_put_packet(connection
, buffer
, size
);
464 gdb_put_packet(connection
, "QC0", 3);
468 else if ( packet
[0] == 'T' ) // Is thread alive?
472 sscanf(packet
, "T%" SCNx64
, &threadid
);
473 if ((target
->rtos
!= NULL
) && (target
->rtos
->thread_details
476 for (thread_num
= 0; thread_num
477 < target
->rtos
->thread_count
; thread_num
++) {
478 if (target
->rtos
->thread_details
[thread_num
].threadid
480 if (target
->rtos
->thread_details
[thread_num
].exists
) {
487 gdb_put_packet(connection
, "OK", 2); // thread alive
489 gdb_put_packet(connection
, "E01", 3); // thread not found
492 else if ( packet
[0] == 'H') // Set current thread ( 'c' for step and continue, 'g' for all other operations )
494 if (packet
[1] == 'g')
496 sscanf(packet
, "Hg%16" SCNx64
, ¤t_threadid
);
498 gdb_put_packet(connection
, "OK", 2);
501 return GDB_THREAD_PACKET_NOT_CONSUMED
;
504 int rtos_get_gdb_reg_list(struct connection
*connection
, struct target
*target
, struct reg
**reg_list
[], int *reg_list_size
)
506 if ( ( target
->rtos
!= NULL
) &&
507 ( current_threadid
!= -1 ) &&
508 ( current_threadid
!= 0 ) &&
509 ( current_threadid
!= target
->rtos
->current_thread
) )
512 target
->rtos
->type
->get_thread_reg_list( target
->rtos
, current_threadid
, &hex_reg_list
);
514 if ( hex_reg_list
!= NULL
)
516 gdb_put_packet(connection
, hex_reg_list
, strlen(hex_reg_list
));
526 int rtos_generic_stack_read( struct target
* target
, const struct rtos_register_stacking
* stacking
, int64_t stack_ptr
, char ** hex_reg_list
)
530 int64_t new_stack_ptr
;
536 LOG_OUTPUT("Error: null stack pointer in thread\r\n");
540 uint8_t * stack_data
= (uint8_t*) malloc( stacking
->stack_registers_size
);
541 uint32_t address
= stack_ptr
;
543 if ( stacking
->stack_growth_direction
== 1 )
545 address
-= stacking
->stack_registers_size
;
547 retval
= target_read_buffer( target
, address
, stacking
->stack_registers_size
, stack_data
);
548 if ( retval
!= ERROR_OK
)
550 LOG_OUTPUT("Error reading stack frame from FreeRTOS thread\r\n");
554 LOG_OUTPUT("Stack Data :");
555 for(i = 0; i < stacking->stack_registers_size; i++ )
557 LOG_OUTPUT("%02X",stack_data[i]);
561 for( i
= 0; i
< stacking
->num_output_registers
; i
++ )
563 list_size
+= stacking
->register_offsets
[i
].width_bits
/8;
565 *hex_reg_list
= (char*)malloc( list_size
*2 +1 );
566 tmp_str_ptr
= *hex_reg_list
;
567 new_stack_ptr
= stack_ptr
- stacking
->stack_growth_direction
* stacking
->stack_registers_size
;
568 for( i
= 0; i
< stacking
->num_output_registers
; i
++ )
571 for ( j
= 0; j
< stacking
->register_offsets
[i
].width_bits
/8; j
++ )
573 if ( stacking
->register_offsets
[i
].offset
== -1 )
575 tmp_str_ptr
+= sprintf( tmp_str_ptr
, "%02x", 0 );
577 else if ( stacking
->register_offsets
[i
].offset
== -2 )
579 tmp_str_ptr
+= sprintf( tmp_str_ptr
, "%02x", ((uint8_t*)&new_stack_ptr
)[j
] );
583 tmp_str_ptr
+= sprintf( tmp_str_ptr
,"%02x", stack_data
[ stacking
->register_offsets
[i
].offset
+ j
] );
587 // LOG_OUTPUT("Output register string: %s\r\n", *hex_reg_list);
591 int rtos_try_next( struct target
* target
)
595 if ( target
->rtos
== NULL
)
600 for (x
= 0 ; rtos_types
[x
] ; x
++) {
601 if (target
->rtos
->type
== rtos_types
[x
] ) {
603 if ( rtos_types
[x
+1] != NULL
)
605 target
->rtos
->type
= rtos_types
[x
+1];
606 if ( target
->rtos
->symbols
!= NULL
)
608 free( target
->rtos
->symbols
);
614 // No more rtos types
624 static void hex_to_str( char* dst
, char * hex_src
)
629 while ( hex_src
[src_pos
] != '\x00' )
631 char hex_char
= hex_src
[src_pos
];
632 char hex_digit_val
= (hex_char
>='a')?hex_char
-'a'+10:(hex_char
>='A')?hex_char
-'A'+10:hex_char
-'0';
633 if ( 0 == (src_pos
& 0x01) )
635 dst
[dst_pos
] = hex_digit_val
;
640 ((unsigned char*)dst
)[dst_pos
] <<= 4;
641 ((unsigned char*)dst
)[dst_pos
] += hex_digit_val
;
649 static int str_to_hex( char* hex_dst
, char* src
)
651 char * posptr
= hex_dst
;
653 for( i
= 0; i
< strlen(src
); i
++)
655 posptr
+= sprintf( posptr
, "%02x", (unsigned char)src
[i
] );
657 return (posptr
-hex_dst
);
661 int rtos_update_threads( struct target
* target
)
663 if ((target
->rtos
!= NULL
) && (target
->rtos
->type
!= NULL
))
665 target
->rtos
->type
->update_threads(target
->rtos
);