Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Main code for remote server for GDB. |
6aba47ca DJ |
2 | Copyright (C) 1989, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2002, 2003, |
3 | 2004, 2005, 2006, 2007 Free Software Foundation, Inc. | |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "server.h" | |
21 | ||
68070c10 | 22 | #if HAVE_UNISTD_H |
a9fa9f7d | 23 | #include <unistd.h> |
68070c10 PA |
24 | #endif |
25 | #if HAVE_SIGNAL_H | |
a9fa9f7d | 26 | #include <signal.h> |
68070c10 | 27 | #endif |
b80864fb | 28 | #if HAVE_SYS_WAIT_H |
a9fa9f7d | 29 | #include <sys/wait.h> |
b80864fb | 30 | #endif |
a9fa9f7d | 31 | |
a1928bad DJ |
32 | unsigned long cont_thread; |
33 | unsigned long general_thread; | |
34 | unsigned long step_thread; | |
35 | unsigned long thread_from_wait; | |
36 | unsigned long old_thread_from_wait; | |
c906108c | 37 | int extended_protocol; |
0d62e5e8 DJ |
38 | int server_waiting; |
39 | ||
c74d0ad8 DJ |
40 | /* Enable miscellaneous debugging output. The name is historical - it |
41 | was originally used to debug LinuxThreads support. */ | |
42 | int debug_threads; | |
43 | ||
89be2091 DJ |
44 | int pass_signals[TARGET_SIGNAL_LAST]; |
45 | ||
c906108c | 46 | jmp_buf toplevel; |
c906108c | 47 | |
a9fa9f7d DJ |
48 | /* The PID of the originally created or attached inferior. Used to |
49 | send signals to the process when GDB sends us an asynchronous interrupt | |
50 | (user hitting Control-C in the client), and to wait for the child to exit | |
51 | when no longer debugging it. */ | |
52 | ||
a1928bad | 53 | unsigned long signal_pid; |
a9fa9f7d | 54 | |
290fadea RS |
55 | #ifdef SIGTTOU |
56 | /* A file descriptor for the controlling terminal. */ | |
57 | int terminal_fd; | |
58 | ||
59 | /* TERMINAL_FD's original foreground group. */ | |
60 | pid_t old_foreground_pgrp; | |
61 | ||
62 | /* Hand back terminal ownership to the original foreground group. */ | |
63 | ||
64 | static void | |
65 | restore_old_foreground_pgrp (void) | |
66 | { | |
67 | tcsetpgrp (terminal_fd, old_foreground_pgrp); | |
68 | } | |
69 | #endif | |
70 | ||
fc620387 | 71 | static int |
da85418c | 72 | start_inferior (char *argv[], char *statusptr) |
c906108c | 73 | { |
b80864fb | 74 | #ifdef SIGTTOU |
a9fa9f7d DJ |
75 | signal (SIGTTOU, SIG_DFL); |
76 | signal (SIGTTIN, SIG_DFL); | |
b80864fb | 77 | #endif |
a9fa9f7d DJ |
78 | |
79 | signal_pid = create_inferior (argv[0], argv); | |
0d62e5e8 | 80 | |
c588c53c MS |
81 | /* FIXME: we don't actually know at this point that the create |
82 | actually succeeded. We won't know that until we wait. */ | |
a1928bad | 83 | fprintf (stderr, "Process %s created; pid = %ld\n", argv[0], |
a9fa9f7d | 84 | signal_pid); |
b80864fb | 85 | fflush (stderr); |
a9fa9f7d | 86 | |
b80864fb | 87 | #ifdef SIGTTOU |
a9fa9f7d DJ |
88 | signal (SIGTTOU, SIG_IGN); |
89 | signal (SIGTTIN, SIG_IGN); | |
290fadea RS |
90 | terminal_fd = fileno (stderr); |
91 | old_foreground_pgrp = tcgetpgrp (terminal_fd); | |
92 | tcsetpgrp (terminal_fd, signal_pid); | |
93 | atexit (restore_old_foreground_pgrp); | |
b80864fb | 94 | #endif |
c906108c | 95 | |
c588c53c MS |
96 | /* Wait till we are at 1st instruction in program, return signal |
97 | number (assuming success). */ | |
0d62e5e8 | 98 | return mywait (statusptr, 0); |
c906108c SS |
99 | } |
100 | ||
45b7b345 | 101 | static int |
fc620387 | 102 | attach_inferior (int pid, char *statusptr, int *sigptr) |
45b7b345 DJ |
103 | { |
104 | /* myattach should return -1 if attaching is unsupported, | |
105 | 0 if it succeeded, and call error() otherwise. */ | |
a9fa9f7d | 106 | |
45b7b345 DJ |
107 | if (myattach (pid) != 0) |
108 | return -1; | |
109 | ||
6910d122 | 110 | fprintf (stderr, "Attached; pid = %d\n", pid); |
b80864fb | 111 | fflush (stderr); |
6910d122 | 112 | |
a9fa9f7d DJ |
113 | /* FIXME - It may be that we should get the SIGNAL_PID from the |
114 | attach function, so that it can be the main thread instead of | |
115 | whichever we were told to attach to. */ | |
116 | signal_pid = pid; | |
117 | ||
0d62e5e8 | 118 | *sigptr = mywait (statusptr, 0); |
45b7b345 | 119 | |
9db87ebd DJ |
120 | /* GDB knows to ignore the first SIGSTOP after attaching to a running |
121 | process using the "attach" command, but this is different; it's | |
122 | just using "target remote". Pretend it's just starting up. */ | |
b80864fb DJ |
123 | if (*statusptr == 'T' && *sigptr == TARGET_SIGNAL_STOP) |
124 | *sigptr = TARGET_SIGNAL_TRAP; | |
9db87ebd | 125 | |
45b7b345 DJ |
126 | return 0; |
127 | } | |
128 | ||
c906108c | 129 | extern int remote_debug; |
ce3a066d | 130 | |
0876f84a DJ |
131 | /* Decode a qXfer read request. Return 0 if everything looks OK, |
132 | or -1 otherwise. */ | |
133 | ||
134 | static int | |
135 | decode_xfer_read (char *buf, char **annex, CORE_ADDR *ofs, unsigned int *len) | |
136 | { | |
137 | /* Extract and NUL-terminate the annex. */ | |
138 | *annex = buf; | |
139 | while (*buf && *buf != ':') | |
140 | buf++; | |
141 | if (*buf == '\0') | |
142 | return -1; | |
143 | *buf++ = 0; | |
144 | ||
0e7f50da | 145 | /* After the read marker and annex, qXfer looks like a |
0876f84a DJ |
146 | traditional 'm' packet. */ |
147 | decode_m_packet (buf, ofs, len); | |
148 | ||
149 | return 0; | |
150 | } | |
151 | ||
152 | /* Write the response to a successful qXfer read. Returns the | |
153 | length of the (binary) data stored in BUF, corresponding | |
154 | to as much of DATA/LEN as we could fit. IS_MORE controls | |
155 | the first character of the response. */ | |
156 | static int | |
23181151 | 157 | write_qxfer_response (char *buf, const void *data, int len, int is_more) |
0876f84a DJ |
158 | { |
159 | int out_len; | |
160 | ||
161 | if (is_more) | |
162 | buf[0] = 'm'; | |
163 | else | |
164 | buf[0] = 'l'; | |
165 | ||
166 | return remote_escape_output (data, len, (unsigned char *) buf + 1, &out_len, | |
167 | PBUFSIZ - 2) + 1; | |
168 | } | |
169 | ||
89be2091 DJ |
170 | /* Handle all of the extended 'Q' packets. */ |
171 | void | |
172 | handle_general_set (char *own_buf) | |
173 | { | |
174 | if (strncmp ("QPassSignals:", own_buf, strlen ("QPassSignals:")) == 0) | |
175 | { | |
176 | int numsigs = (int) TARGET_SIGNAL_LAST, i; | |
177 | const char *p = own_buf + strlen ("QPassSignals:"); | |
178 | CORE_ADDR cursig; | |
179 | ||
180 | p = decode_address_to_semicolon (&cursig, p); | |
181 | for (i = 0; i < numsigs; i++) | |
182 | { | |
183 | if (i == cursig) | |
184 | { | |
185 | pass_signals[i] = 1; | |
186 | if (*p == '\0') | |
187 | /* Keep looping, to clear the remaining signals. */ | |
188 | cursig = -1; | |
189 | else | |
190 | p = decode_address_to_semicolon (&cursig, p); | |
191 | } | |
192 | else | |
193 | pass_signals[i] = 0; | |
194 | } | |
195 | strcpy (own_buf, "OK"); | |
196 | return; | |
197 | } | |
198 | ||
199 | /* Otherwise we didn't know what packet it was. Say we didn't | |
200 | understand it. */ | |
201 | own_buf[0] = 0; | |
202 | } | |
203 | ||
23181151 | 204 | static const char * |
fb1e4ffc | 205 | get_features_xml (const char *annex) |
23181151 DJ |
206 | { |
207 | static int features_supported = -1; | |
208 | static char *document; | |
209 | ||
fb1e4ffc DJ |
210 | #ifdef USE_XML |
211 | extern const char *const xml_builtin[][2]; | |
212 | int i; | |
213 | ||
214 | /* Look for the annex. */ | |
215 | for (i = 0; xml_builtin[i][0] != NULL; i++) | |
216 | if (strcmp (annex, xml_builtin[i][0]) == 0) | |
217 | break; | |
218 | ||
219 | if (xml_builtin[i][0] != NULL) | |
220 | return xml_builtin[i][1]; | |
221 | #endif | |
222 | ||
223 | if (strcmp (annex, "target.xml") != 0) | |
224 | return NULL; | |
225 | ||
23181151 DJ |
226 | if (features_supported == -1) |
227 | { | |
820f2bda PA |
228 | const char *arch = NULL; |
229 | if (the_target->arch_string != NULL) | |
230 | arch = (*the_target->arch_string) (); | |
23181151 DJ |
231 | |
232 | if (arch == NULL) | |
233 | features_supported = 0; | |
234 | else | |
235 | { | |
236 | features_supported = 1; | |
237 | document = malloc (64 + strlen (arch)); | |
238 | snprintf (document, 64 + strlen (arch), | |
239 | "<target><architecture>%s</architecture></target>", | |
240 | arch); | |
241 | } | |
242 | } | |
243 | ||
244 | return document; | |
245 | } | |
246 | ||
c74d0ad8 DJ |
247 | void |
248 | monitor_show_help (void) | |
249 | { | |
250 | monitor_output ("The following monitor commands are supported:\n"); | |
251 | monitor_output (" set debug <0|1>\n"); | |
252 | monitor_output (" Enable general debugging messages\n"); | |
253 | monitor_output (" set remote-debug <0|1>\n"); | |
254 | monitor_output (" Enable remote protocol debugging messages\n"); | |
255 | } | |
256 | ||
ce3a066d DJ |
257 | /* Handle all of the extended 'q' packets. */ |
258 | void | |
0e7f50da | 259 | handle_query (char *own_buf, int packet_len, int *new_packet_len_p) |
ce3a066d | 260 | { |
0d62e5e8 DJ |
261 | static struct inferior_list_entry *thread_ptr; |
262 | ||
bb63802a UW |
263 | /* Reply the current thread id. */ |
264 | if (strcmp ("qC", own_buf) == 0) | |
265 | { | |
266 | thread_ptr = all_threads.head; | |
267 | sprintf (own_buf, "QC%x", | |
268 | thread_to_gdb_id ((struct thread_info *)thread_ptr)); | |
269 | return; | |
270 | } | |
271 | ||
ce3a066d DJ |
272 | if (strcmp ("qSymbol::", own_buf) == 0) |
273 | { | |
2f2893d9 DJ |
274 | if (the_target->look_up_symbols != NULL) |
275 | (*the_target->look_up_symbols) (); | |
276 | ||
ce3a066d DJ |
277 | strcpy (own_buf, "OK"); |
278 | return; | |
279 | } | |
280 | ||
0d62e5e8 DJ |
281 | if (strcmp ("qfThreadInfo", own_buf) == 0) |
282 | { | |
283 | thread_ptr = all_threads.head; | |
a06660f7 | 284 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
0d62e5e8 DJ |
285 | thread_ptr = thread_ptr->next; |
286 | return; | |
287 | } | |
aa691b87 | 288 | |
0d62e5e8 DJ |
289 | if (strcmp ("qsThreadInfo", own_buf) == 0) |
290 | { | |
291 | if (thread_ptr != NULL) | |
292 | { | |
a06660f7 | 293 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
0d62e5e8 DJ |
294 | thread_ptr = thread_ptr->next; |
295 | return; | |
296 | } | |
297 | else | |
298 | { | |
299 | sprintf (own_buf, "l"); | |
300 | return; | |
301 | } | |
302 | } | |
aa691b87 | 303 | |
52fb6437 NS |
304 | if (the_target->read_offsets != NULL |
305 | && strcmp ("qOffsets", own_buf) == 0) | |
306 | { | |
307 | CORE_ADDR text, data; | |
308 | ||
309 | if (the_target->read_offsets (&text, &data)) | |
310 | sprintf (own_buf, "Text=%lX;Data=%lX;Bss=%lX", | |
311 | (long)text, (long)data, (long)data); | |
312 | else | |
313 | write_enn (own_buf); | |
314 | ||
315 | return; | |
316 | } | |
317 | ||
0e7f50da UW |
318 | if (the_target->qxfer_spu != NULL |
319 | && strncmp ("qXfer:spu:read:", own_buf, 15) == 0) | |
320 | { | |
321 | char *annex; | |
322 | int n; | |
323 | unsigned int len; | |
324 | CORE_ADDR ofs; | |
325 | unsigned char *spu_buf; | |
326 | ||
327 | strcpy (own_buf, "E00"); | |
328 | if (decode_xfer_read (own_buf + 15, &annex, &ofs, &len) < 0) | |
329 | return; | |
330 | if (len > PBUFSIZ - 2) | |
331 | len = PBUFSIZ - 2; | |
332 | spu_buf = malloc (len + 1); | |
333 | if (!spu_buf) | |
334 | return; | |
335 | ||
336 | n = (*the_target->qxfer_spu) (annex, spu_buf, NULL, ofs, len + 1); | |
337 | if (n < 0) | |
338 | write_enn (own_buf); | |
339 | else if (n > len) | |
340 | *new_packet_len_p = write_qxfer_response | |
341 | (own_buf, spu_buf, len, 1); | |
342 | else | |
343 | *new_packet_len_p = write_qxfer_response | |
344 | (own_buf, spu_buf, n, 0); | |
345 | ||
346 | free (spu_buf); | |
347 | return; | |
348 | } | |
349 | ||
350 | if (the_target->qxfer_spu != NULL | |
351 | && strncmp ("qXfer:spu:write:", own_buf, 16) == 0) | |
352 | { | |
353 | char *annex; | |
354 | int n; | |
355 | unsigned int len; | |
356 | CORE_ADDR ofs; | |
357 | unsigned char *spu_buf; | |
358 | ||
359 | strcpy (own_buf, "E00"); | |
360 | spu_buf = malloc (packet_len - 15); | |
361 | if (!spu_buf) | |
362 | return; | |
363 | if (decode_xfer_write (own_buf + 16, packet_len - 16, &annex, | |
364 | &ofs, &len, spu_buf) < 0) | |
365 | { | |
366 | free (spu_buf); | |
367 | return; | |
368 | } | |
369 | ||
370 | n = (*the_target->qxfer_spu) | |
371 | (annex, NULL, (unsigned const char *)spu_buf, ofs, len); | |
372 | if (n < 0) | |
373 | write_enn (own_buf); | |
374 | else | |
375 | sprintf (own_buf, "%x", n); | |
376 | ||
377 | free (spu_buf); | |
378 | return; | |
379 | } | |
380 | ||
aa691b87 | 381 | if (the_target->read_auxv != NULL |
0876f84a | 382 | && strncmp ("qXfer:auxv:read:", own_buf, 16) == 0) |
aa691b87 | 383 | { |
0876f84a DJ |
384 | unsigned char *data; |
385 | int n; | |
aa691b87 RM |
386 | CORE_ADDR ofs; |
387 | unsigned int len; | |
0876f84a DJ |
388 | char *annex; |
389 | ||
390 | /* Reject any annex; grab the offset and length. */ | |
391 | if (decode_xfer_read (own_buf + 16, &annex, &ofs, &len) < 0 | |
392 | || annex[0] != '\0') | |
393 | { | |
394 | strcpy (own_buf, "E00"); | |
395 | return; | |
396 | } | |
397 | ||
398 | /* Read one extra byte, as an indicator of whether there is | |
399 | more. */ | |
400 | if (len > PBUFSIZ - 2) | |
401 | len = PBUFSIZ - 2; | |
402 | data = malloc (len + 1); | |
403 | n = (*the_target->read_auxv) (ofs, data, len + 1); | |
000ef4f0 DJ |
404 | if (n < 0) |
405 | write_enn (own_buf); | |
406 | else if (n > len) | |
0876f84a | 407 | *new_packet_len_p = write_qxfer_response (own_buf, data, len, 1); |
aa691b87 | 408 | else |
0876f84a DJ |
409 | *new_packet_len_p = write_qxfer_response (own_buf, data, n, 0); |
410 | ||
411 | free (data); | |
412 | ||
aa691b87 RM |
413 | return; |
414 | } | |
415 | ||
23181151 DJ |
416 | if (strncmp ("qXfer:features:read:", own_buf, 20) == 0) |
417 | { | |
418 | CORE_ADDR ofs; | |
419 | unsigned int len, total_len; | |
420 | const char *document; | |
421 | char *annex; | |
422 | ||
fb1e4ffc DJ |
423 | /* Check for support. */ |
424 | document = get_features_xml ("target.xml"); | |
23181151 DJ |
425 | if (document == NULL) |
426 | { | |
427 | own_buf[0] = '\0'; | |
428 | return; | |
429 | } | |
430 | ||
fb1e4ffc DJ |
431 | /* Grab the annex, offset, and length. */ |
432 | if (decode_xfer_read (own_buf + 20, &annex, &ofs, &len) < 0) | |
433 | { | |
434 | strcpy (own_buf, "E00"); | |
435 | return; | |
436 | } | |
437 | ||
438 | /* Now grab the correct annex. */ | |
439 | document = get_features_xml (annex); | |
440 | if (document == NULL) | |
23181151 DJ |
441 | { |
442 | strcpy (own_buf, "E00"); | |
443 | return; | |
444 | } | |
445 | ||
446 | total_len = strlen (document); | |
447 | if (len > PBUFSIZ - 2) | |
448 | len = PBUFSIZ - 2; | |
449 | ||
450 | if (ofs > total_len) | |
451 | write_enn (own_buf); | |
452 | else if (len < total_len - ofs) | |
453 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
454 | len, 1); | |
455 | else | |
456 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
457 | total_len - ofs, 0); | |
458 | ||
459 | return; | |
460 | } | |
461 | ||
255e7678 DJ |
462 | if (strncmp ("qXfer:libraries:read:", own_buf, 21) == 0) |
463 | { | |
464 | CORE_ADDR ofs; | |
465 | unsigned int len, total_len; | |
466 | char *document, *p; | |
467 | struct inferior_list_entry *dll_ptr; | |
468 | char *annex; | |
469 | ||
470 | /* Reject any annex; grab the offset and length. */ | |
471 | if (decode_xfer_read (own_buf + 21, &annex, &ofs, &len) < 0 | |
472 | || annex[0] != '\0') | |
473 | { | |
474 | strcpy (own_buf, "E00"); | |
475 | return; | |
476 | } | |
477 | ||
478 | /* Over-estimate the necessary memory. Assume that every character | |
479 | in the library name must be escaped. */ | |
480 | total_len = 64; | |
481 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
482 | total_len += 128 + 6 * strlen (((struct dll_info *) dll_ptr)->name); | |
483 | ||
484 | document = malloc (total_len); | |
485 | strcpy (document, "<library-list>\n"); | |
486 | p = document + strlen (document); | |
487 | ||
488 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
489 | { | |
490 | struct dll_info *dll = (struct dll_info *) dll_ptr; | |
491 | char *name; | |
492 | ||
493 | strcpy (p, " <library name=\""); | |
494 | p = p + strlen (p); | |
495 | name = xml_escape_text (dll->name); | |
496 | strcpy (p, name); | |
497 | free (name); | |
498 | p = p + strlen (p); | |
499 | strcpy (p, "\"><segment address=\""); | |
500 | p = p + strlen (p); | |
501 | sprintf (p, "0x%lx", (long) dll->base_addr); | |
502 | p = p + strlen (p); | |
503 | strcpy (p, "\"/></library>\n"); | |
504 | p = p + strlen (p); | |
505 | } | |
506 | ||
507 | strcpy (p, "</library-list>\n"); | |
508 | ||
509 | total_len = strlen (document); | |
510 | if (len > PBUFSIZ - 2) | |
511 | len = PBUFSIZ - 2; | |
512 | ||
513 | if (ofs > total_len) | |
514 | write_enn (own_buf); | |
515 | else if (len < total_len - ofs) | |
516 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
517 | len, 1); | |
518 | else | |
519 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
520 | total_len - ofs, 0); | |
521 | ||
522 | free (document); | |
523 | return; | |
524 | } | |
525 | ||
be2a5f71 DJ |
526 | /* Protocol features query. */ |
527 | if (strncmp ("qSupported", own_buf, 10) == 0 | |
528 | && (own_buf[10] == ':' || own_buf[10] == '\0')) | |
529 | { | |
89be2091 | 530 | sprintf (own_buf, "PacketSize=%x;QPassSignals+", PBUFSIZ - 1); |
0876f84a | 531 | |
255e7678 DJ |
532 | /* We do not have any hook to indicate whether the target backend |
533 | supports qXfer:libraries:read, so always report it. */ | |
534 | strcat (own_buf, ";qXfer:libraries:read+"); | |
535 | ||
0876f84a | 536 | if (the_target->read_auxv != NULL) |
9f2e1e63 | 537 | strcat (own_buf, ";qXfer:auxv:read+"); |
0e7f50da UW |
538 | |
539 | if (the_target->qxfer_spu != NULL) | |
540 | strcat (own_buf, ";qXfer:spu:read+;qXfer:spu:write+"); | |
0876f84a | 541 | |
fb1e4ffc | 542 | if (get_features_xml ("target.xml") != NULL) |
23181151 DJ |
543 | strcat (own_buf, ";qXfer:features:read+"); |
544 | ||
be2a5f71 DJ |
545 | return; |
546 | } | |
547 | ||
dae5f5cf DJ |
548 | /* Thread-local storage support. */ |
549 | if (the_target->get_tls_address != NULL | |
550 | && strncmp ("qGetTLSAddr:", own_buf, 12) == 0) | |
551 | { | |
552 | char *p = own_buf + 12; | |
553 | CORE_ADDR parts[3], address = 0; | |
554 | int i, err; | |
555 | ||
556 | for (i = 0; i < 3; i++) | |
557 | { | |
558 | char *p2; | |
559 | int len; | |
560 | ||
561 | if (p == NULL) | |
562 | break; | |
563 | ||
564 | p2 = strchr (p, ','); | |
565 | if (p2) | |
566 | { | |
567 | len = p2 - p; | |
568 | p2++; | |
569 | } | |
570 | else | |
571 | { | |
572 | len = strlen (p); | |
573 | p2 = NULL; | |
574 | } | |
575 | ||
576 | decode_address (&parts[i], p, len); | |
577 | p = p2; | |
578 | } | |
579 | ||
580 | if (p != NULL || i < 3) | |
581 | err = 1; | |
582 | else | |
583 | { | |
584 | struct thread_info *thread = gdb_id_to_thread (parts[0]); | |
585 | ||
586 | if (thread == NULL) | |
587 | err = 2; | |
588 | else | |
589 | err = the_target->get_tls_address (thread, parts[1], parts[2], | |
590 | &address); | |
591 | } | |
592 | ||
593 | if (err == 0) | |
594 | { | |
595 | sprintf (own_buf, "%llx", address); | |
596 | return; | |
597 | } | |
598 | else if (err > 0) | |
599 | { | |
600 | write_enn (own_buf); | |
601 | return; | |
602 | } | |
603 | ||
604 | /* Otherwise, pretend we do not understand this packet. */ | |
605 | } | |
606 | ||
c74d0ad8 DJ |
607 | /* Handle "monitor" commands. */ |
608 | if (strncmp ("qRcmd,", own_buf, 6) == 0) | |
609 | { | |
610 | char *mon = malloc (PBUFSIZ); | |
611 | int len = strlen (own_buf + 6); | |
612 | ||
613 | if ((len % 1) != 0 || unhexify (mon, own_buf + 6, len / 2) != len / 2) | |
614 | { | |
615 | write_enn (own_buf); | |
616 | free (mon); | |
617 | return; | |
618 | } | |
619 | mon[len / 2] = '\0'; | |
620 | ||
621 | write_ok (own_buf); | |
622 | ||
623 | if (strcmp (mon, "set debug 1") == 0) | |
624 | { | |
625 | debug_threads = 1; | |
626 | monitor_output ("Debug output enabled.\n"); | |
627 | } | |
628 | else if (strcmp (mon, "set debug 0") == 0) | |
629 | { | |
630 | debug_threads = 0; | |
631 | monitor_output ("Debug output disabled.\n"); | |
632 | } | |
633 | else if (strcmp (mon, "set remote-debug 1") == 0) | |
634 | { | |
635 | remote_debug = 1; | |
636 | monitor_output ("Protocol debug output enabled.\n"); | |
637 | } | |
638 | else if (strcmp (mon, "set remote-debug 0") == 0) | |
639 | { | |
640 | remote_debug = 0; | |
641 | monitor_output ("Protocol debug output disabled.\n"); | |
642 | } | |
643 | else if (strcmp (mon, "help") == 0) | |
644 | monitor_show_help (); | |
645 | else | |
646 | { | |
647 | monitor_output ("Unknown monitor command.\n\n"); | |
648 | monitor_show_help (); | |
649 | write_enn (own_buf); | |
650 | } | |
651 | ||
652 | free (mon); | |
653 | return; | |
654 | } | |
655 | ||
ce3a066d DJ |
656 | /* Otherwise we didn't know what packet it was. Say we didn't |
657 | understand it. */ | |
658 | own_buf[0] = 0; | |
659 | } | |
660 | ||
64386c31 DJ |
661 | /* Parse vCont packets. */ |
662 | void | |
fc620387 | 663 | handle_v_cont (char *own_buf, char *status, int *signal) |
64386c31 DJ |
664 | { |
665 | char *p, *q; | |
666 | int n = 0, i = 0; | |
667 | struct thread_resume *resume_info, default_action; | |
668 | ||
669 | /* Count the number of semicolons in the packet. There should be one | |
670 | for every action. */ | |
671 | p = &own_buf[5]; | |
672 | while (p) | |
673 | { | |
674 | n++; | |
675 | p++; | |
676 | p = strchr (p, ';'); | |
677 | } | |
678 | /* Allocate room for one extra action, for the default remain-stopped | |
679 | behavior; if no default action is in the list, we'll need the extra | |
680 | slot. */ | |
681 | resume_info = malloc ((n + 1) * sizeof (resume_info[0])); | |
682 | ||
683 | default_action.thread = -1; | |
684 | default_action.leave_stopped = 1; | |
685 | default_action.step = 0; | |
686 | default_action.sig = 0; | |
687 | ||
688 | p = &own_buf[5]; | |
689 | i = 0; | |
690 | while (*p) | |
691 | { | |
692 | p++; | |
693 | ||
694 | resume_info[i].leave_stopped = 0; | |
695 | ||
696 | if (p[0] == 's' || p[0] == 'S') | |
697 | resume_info[i].step = 1; | |
698 | else if (p[0] == 'c' || p[0] == 'C') | |
699 | resume_info[i].step = 0; | |
700 | else | |
701 | goto err; | |
702 | ||
703 | if (p[0] == 'S' || p[0] == 'C') | |
704 | { | |
705 | int sig; | |
706 | sig = strtol (p + 1, &q, 16); | |
707 | if (p == q) | |
708 | goto err; | |
709 | p = q; | |
710 | ||
711 | if (!target_signal_to_host_p (sig)) | |
712 | goto err; | |
713 | resume_info[i].sig = target_signal_to_host (sig); | |
714 | } | |
715 | else | |
716 | { | |
717 | resume_info[i].sig = 0; | |
718 | p = p + 1; | |
719 | } | |
720 | ||
721 | if (p[0] == 0) | |
722 | { | |
723 | resume_info[i].thread = -1; | |
724 | default_action = resume_info[i]; | |
725 | ||
726 | /* Note: we don't increment i here, we'll overwrite this entry | |
727 | the next time through. */ | |
728 | } | |
729 | else if (p[0] == ':') | |
730 | { | |
a06660f7 DJ |
731 | unsigned int gdb_id = strtoul (p + 1, &q, 16); |
732 | unsigned long thread_id; | |
733 | ||
64386c31 DJ |
734 | if (p == q) |
735 | goto err; | |
736 | p = q; | |
737 | if (p[0] != ';' && p[0] != 0) | |
738 | goto err; | |
739 | ||
a06660f7 DJ |
740 | thread_id = gdb_id_to_thread_id (gdb_id); |
741 | if (thread_id) | |
742 | resume_info[i].thread = thread_id; | |
743 | else | |
744 | goto err; | |
745 | ||
64386c31 DJ |
746 | i++; |
747 | } | |
748 | } | |
749 | ||
750 | resume_info[i] = default_action; | |
751 | ||
752 | /* Still used in occasional places in the backend. */ | |
753 | if (n == 1 && resume_info[0].thread != -1) | |
754 | cont_thread = resume_info[0].thread; | |
755 | else | |
756 | cont_thread = -1; | |
dc3f8883 | 757 | set_desired_inferior (0); |
64386c31 DJ |
758 | |
759 | (*the_target->resume) (resume_info); | |
760 | ||
761 | free (resume_info); | |
762 | ||
763 | *signal = mywait (status, 1); | |
764 | prepare_resume_reply (own_buf, *status, *signal); | |
765 | return; | |
766 | ||
767 | err: | |
255e7678 | 768 | write_enn (own_buf); |
64386c31 DJ |
769 | free (resume_info); |
770 | return; | |
771 | } | |
772 | ||
773 | /* Handle all of the extended 'v' packets. */ | |
774 | void | |
fc620387 | 775 | handle_v_requests (char *own_buf, char *status, int *signal) |
64386c31 DJ |
776 | { |
777 | if (strncmp (own_buf, "vCont;", 6) == 0) | |
778 | { | |
779 | handle_v_cont (own_buf, status, signal); | |
780 | return; | |
781 | } | |
782 | ||
783 | if (strncmp (own_buf, "vCont?", 6) == 0) | |
784 | { | |
785 | strcpy (own_buf, "vCont;c;C;s;S"); | |
786 | return; | |
787 | } | |
788 | ||
789 | /* Otherwise we didn't know what packet it was. Say we didn't | |
790 | understand it. */ | |
791 | own_buf[0] = 0; | |
792 | return; | |
793 | } | |
794 | ||
795 | void | |
796 | myresume (int step, int sig) | |
797 | { | |
798 | struct thread_resume resume_info[2]; | |
799 | int n = 0; | |
800 | ||
d592fa2f | 801 | if (step || sig || (cont_thread != 0 && cont_thread != -1)) |
64386c31 DJ |
802 | { |
803 | resume_info[0].thread | |
804 | = ((struct inferior_list_entry *) current_inferior)->id; | |
805 | resume_info[0].step = step; | |
806 | resume_info[0].sig = sig; | |
807 | resume_info[0].leave_stopped = 0; | |
808 | n++; | |
809 | } | |
810 | resume_info[n].thread = -1; | |
811 | resume_info[n].step = 0; | |
812 | resume_info[n].sig = 0; | |
d592fa2f | 813 | resume_info[n].leave_stopped = (cont_thread != 0 && cont_thread != -1); |
64386c31 DJ |
814 | |
815 | (*the_target->resume) (resume_info); | |
816 | } | |
817 | ||
0729219d | 818 | static int attached; |
c906108c | 819 | |
dd24457d DJ |
820 | static void |
821 | gdbserver_version (void) | |
822 | { | |
823 | printf ("GNU gdbserver %s\n" | |
255e7678 | 824 | "Copyright (C) 2007 Free Software Foundation, Inc.\n" |
dd24457d DJ |
825 | "gdbserver is free software, covered by the GNU General Public License.\n" |
826 | "This gdbserver was configured as \"%s\"\n", | |
827 | version, host_name); | |
828 | } | |
829 | ||
0bc68c49 DJ |
830 | static void |
831 | gdbserver_usage (void) | |
832 | { | |
dd24457d DJ |
833 | printf ("Usage:\tgdbserver COMM PROG [ARGS ...]\n" |
834 | "\tgdbserver COMM --attach PID\n" | |
835 | "\n" | |
836 | "COMM may either be a tty device (for serial debugging), or \n" | |
837 | "HOST:PORT to listen for a TCP connection.\n"); | |
0bc68c49 DJ |
838 | } |
839 | ||
c906108c | 840 | int |
da85418c | 841 | main (int argc, char *argv[]) |
c906108c | 842 | { |
f450004a | 843 | char ch, status, *own_buf; |
7fb85e41 | 844 | unsigned char *mem_buf; |
c906108c | 845 | int i = 0; |
fc620387 | 846 | int signal; |
c906108c SS |
847 | unsigned int len; |
848 | CORE_ADDR mem_addr; | |
0729219d DJ |
849 | int bad_attach; |
850 | int pid; | |
45b7b345 | 851 | char *arg_end; |
c906108c | 852 | |
dd24457d DJ |
853 | if (argc >= 2 && strcmp (argv[1], "--version") == 0) |
854 | { | |
855 | gdbserver_version (); | |
856 | exit (0); | |
857 | } | |
858 | ||
859 | if (argc >= 2 && strcmp (argv[1], "--help") == 0) | |
860 | { | |
861 | gdbserver_usage (); | |
862 | exit (0); | |
863 | } | |
864 | ||
c5aa993b | 865 | if (setjmp (toplevel)) |
c906108c | 866 | { |
c5aa993b JM |
867 | fprintf (stderr, "Exiting\n"); |
868 | exit (1); | |
c906108c SS |
869 | } |
870 | ||
0729219d DJ |
871 | bad_attach = 0; |
872 | pid = 0; | |
873 | attached = 0; | |
45b7b345 DJ |
874 | if (argc >= 3 && strcmp (argv[2], "--attach") == 0) |
875 | { | |
876 | if (argc == 4 | |
506c7aa0 | 877 | && argv[3][0] != '\0' |
45b7b345 DJ |
878 | && (pid = strtoul (argv[3], &arg_end, 10)) != 0 |
879 | && *arg_end == '\0') | |
880 | { | |
881 | ; | |
882 | } | |
883 | else | |
884 | bad_attach = 1; | |
885 | } | |
886 | ||
887 | if (argc < 3 || bad_attach) | |
dd24457d DJ |
888 | { |
889 | gdbserver_usage (); | |
890 | exit (1); | |
891 | } | |
c906108c | 892 | |
4ce44c66 JM |
893 | initialize_low (); |
894 | ||
255e7678 | 895 | own_buf = malloc (PBUFSIZ + 1); |
7fb85e41 | 896 | mem_buf = malloc (PBUFSIZ); |
0a30fbc4 | 897 | |
45b7b345 DJ |
898 | if (pid == 0) |
899 | { | |
900 | /* Wait till we are at first instruction in program. */ | |
901 | signal = start_inferior (&argv[2], &status); | |
c906108c | 902 | |
c588c53c MS |
903 | /* We are now (hopefully) stopped at the first instruction of |
904 | the target process. This assumes that the target process was | |
905 | successfully created. */ | |
255e7678 DJ |
906 | |
907 | /* Don't report shared library events on the initial connection, | |
908 | even if some libraries are preloaded. */ | |
909 | dlls_changed = 0; | |
45b7b345 DJ |
910 | } |
911 | else | |
912 | { | |
913 | switch (attach_inferior (pid, &status, &signal)) | |
914 | { | |
915 | case -1: | |
916 | error ("Attaching not supported on this target"); | |
917 | break; | |
918 | default: | |
919 | attached = 1; | |
920 | break; | |
921 | } | |
922 | } | |
c906108c | 923 | |
8264bb58 DJ |
924 | if (setjmp (toplevel)) |
925 | { | |
926 | fprintf (stderr, "Killing inferior\n"); | |
927 | kill_inferior (); | |
928 | exit (1); | |
929 | } | |
930 | ||
c588c53c MS |
931 | if (status == 'W' || status == 'X') |
932 | { | |
933 | fprintf (stderr, "No inferior, GDBserver exiting.\n"); | |
934 | exit (1); | |
935 | } | |
936 | ||
c906108c SS |
937 | while (1) |
938 | { | |
939 | remote_open (argv[1]); | |
940 | ||
c5aa993b JM |
941 | restart: |
942 | setjmp (toplevel); | |
01f9e8fa | 943 | while (1) |
c906108c SS |
944 | { |
945 | unsigned char sig; | |
01f9e8fa DJ |
946 | int packet_len; |
947 | int new_packet_len = -1; | |
948 | ||
949 | packet_len = getpkt (own_buf); | |
950 | if (packet_len <= 0) | |
951 | break; | |
952 | ||
c906108c SS |
953 | i = 0; |
954 | ch = own_buf[i++]; | |
955 | switch (ch) | |
956 | { | |
ce3a066d | 957 | case 'q': |
0e7f50da | 958 | handle_query (own_buf, packet_len, &new_packet_len); |
ce3a066d | 959 | break; |
89be2091 DJ |
960 | case 'Q': |
961 | handle_general_set (own_buf); | |
962 | break; | |
6ad8ae5c DJ |
963 | case 'D': |
964 | fprintf (stderr, "Detaching from inferior\n"); | |
444d6139 | 965 | if (detach_inferior () != 0) |
6ad8ae5c | 966 | { |
444d6139 PA |
967 | write_enn (own_buf); |
968 | putpkt (own_buf); | |
6ad8ae5c | 969 | } |
444d6139 PA |
970 | else |
971 | { | |
972 | write_ok (own_buf); | |
973 | putpkt (own_buf); | |
974 | remote_close (); | |
6ad8ae5c | 975 | |
444d6139 PA |
976 | /* If we are attached, then we can exit. Otherwise, we |
977 | need to hang around doing nothing, until the child | |
978 | is gone. */ | |
979 | if (!attached) | |
980 | join_inferior (); | |
6ad8ae5c | 981 | |
444d6139 PA |
982 | exit (0); |
983 | } | |
c906108c | 984 | case '!': |
45b7b345 DJ |
985 | if (attached == 0) |
986 | { | |
987 | extended_protocol = 1; | |
988 | prepare_resume_reply (own_buf, status, signal); | |
989 | } | |
990 | else | |
991 | { | |
992 | /* We can not use the extended protocol if we are | |
993 | attached, because we can not restart the running | |
994 | program. So return unrecognized. */ | |
995 | own_buf[0] = '\0'; | |
996 | } | |
c906108c SS |
997 | break; |
998 | case '?': | |
999 | prepare_resume_reply (own_buf, status, signal); | |
1000 | break; | |
1001 | case 'H': | |
a06660f7 | 1002 | if (own_buf[1] == 'c' || own_buf[1] == 'g' || own_buf[1] == 's') |
c906108c | 1003 | { |
a06660f7 DJ |
1004 | unsigned long gdb_id, thread_id; |
1005 | ||
1006 | gdb_id = strtoul (&own_buf[2], NULL, 16); | |
1007 | thread_id = gdb_id_to_thread_id (gdb_id); | |
1008 | if (thread_id == 0) | |
1009 | { | |
1010 | write_enn (own_buf); | |
1011 | break; | |
1012 | } | |
1013 | ||
1014 | if (own_buf[1] == 'g') | |
1015 | { | |
1016 | general_thread = thread_id; | |
1017 | set_desired_inferior (1); | |
1018 | } | |
1019 | else if (own_buf[1] == 'c') | |
1020 | cont_thread = thread_id; | |
1021 | else if (own_buf[1] == 's') | |
1022 | step_thread = thread_id; | |
1023 | ||
0d62e5e8 | 1024 | write_ok (own_buf); |
a06660f7 DJ |
1025 | } |
1026 | else | |
1027 | { | |
c906108c SS |
1028 | /* Silently ignore it so that gdb can extend the protocol |
1029 | without compatibility headaches. */ | |
1030 | own_buf[0] = '\0'; | |
c906108c SS |
1031 | } |
1032 | break; | |
1033 | case 'g': | |
0d62e5e8 | 1034 | set_desired_inferior (1); |
0a30fbc4 | 1035 | registers_to_string (own_buf); |
c906108c SS |
1036 | break; |
1037 | case 'G': | |
0d62e5e8 | 1038 | set_desired_inferior (1); |
0a30fbc4 | 1039 | registers_from_string (&own_buf[1]); |
c906108c SS |
1040 | write_ok (own_buf); |
1041 | break; | |
1042 | case 'm': | |
1043 | decode_m_packet (&own_buf[1], &mem_addr, &len); | |
c3e735a6 DJ |
1044 | if (read_inferior_memory (mem_addr, mem_buf, len) == 0) |
1045 | convert_int_to_ascii (mem_buf, own_buf, len); | |
1046 | else | |
1047 | write_enn (own_buf); | |
c906108c SS |
1048 | break; |
1049 | case 'M': | |
1050 | decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf); | |
1051 | if (write_inferior_memory (mem_addr, mem_buf, len) == 0) | |
1052 | write_ok (own_buf); | |
1053 | else | |
1054 | write_enn (own_buf); | |
1055 | break; | |
01f9e8fa DJ |
1056 | case 'X': |
1057 | if (decode_X_packet (&own_buf[1], packet_len - 1, | |
1058 | &mem_addr, &len, mem_buf) < 0 | |
1059 | || write_inferior_memory (mem_addr, mem_buf, len) != 0) | |
1060 | write_enn (own_buf); | |
1061 | else | |
1062 | write_ok (own_buf); | |
1063 | break; | |
c906108c SS |
1064 | case 'C': |
1065 | convert_ascii_to_int (own_buf + 1, &sig, 1); | |
0e98d0a7 DJ |
1066 | if (target_signal_to_host_p (sig)) |
1067 | signal = target_signal_to_host (sig); | |
1068 | else | |
1069 | signal = 0; | |
0d62e5e8 | 1070 | set_desired_inferior (0); |
0e98d0a7 | 1071 | myresume (0, signal); |
0d62e5e8 | 1072 | signal = mywait (&status, 1); |
c906108c SS |
1073 | prepare_resume_reply (own_buf, status, signal); |
1074 | break; | |
1075 | case 'S': | |
1076 | convert_ascii_to_int (own_buf + 1, &sig, 1); | |
0e98d0a7 DJ |
1077 | if (target_signal_to_host_p (sig)) |
1078 | signal = target_signal_to_host (sig); | |
1079 | else | |
1080 | signal = 0; | |
0d62e5e8 | 1081 | set_desired_inferior (0); |
0e98d0a7 | 1082 | myresume (1, signal); |
0d62e5e8 | 1083 | signal = mywait (&status, 1); |
c906108c SS |
1084 | prepare_resume_reply (own_buf, status, signal); |
1085 | break; | |
1086 | case 'c': | |
0d62e5e8 | 1087 | set_desired_inferior (0); |
c906108c | 1088 | myresume (0, 0); |
0d62e5e8 | 1089 | signal = mywait (&status, 1); |
c906108c SS |
1090 | prepare_resume_reply (own_buf, status, signal); |
1091 | break; | |
1092 | case 's': | |
0d62e5e8 | 1093 | set_desired_inferior (0); |
c906108c | 1094 | myresume (1, 0); |
0d62e5e8 | 1095 | signal = mywait (&status, 1); |
c906108c SS |
1096 | prepare_resume_reply (own_buf, status, signal); |
1097 | break; | |
e013ee27 OF |
1098 | case 'Z': |
1099 | { | |
1100 | char *lenptr; | |
1101 | char *dataptr; | |
1102 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1103 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1104 | char type = own_buf[1]; | |
1105 | ||
1106 | if (the_target->insert_watchpoint == NULL | |
1107 | || (type < '2' || type > '4')) | |
1108 | { | |
1109 | /* No watchpoint support or not a watchpoint command; | |
1110 | unrecognized either way. */ | |
1111 | own_buf[0] = '\0'; | |
1112 | } | |
1113 | else | |
1114 | { | |
1115 | int res; | |
1116 | ||
1117 | res = (*the_target->insert_watchpoint) (type, addr, len); | |
1118 | if (res == 0) | |
1119 | write_ok (own_buf); | |
1120 | else if (res == 1) | |
1121 | /* Unsupported. */ | |
1122 | own_buf[0] = '\0'; | |
1123 | else | |
1124 | write_enn (own_buf); | |
1125 | } | |
1126 | break; | |
1127 | } | |
1128 | case 'z': | |
1129 | { | |
1130 | char *lenptr; | |
1131 | char *dataptr; | |
1132 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1133 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1134 | char type = own_buf[1]; | |
1135 | ||
1136 | if (the_target->remove_watchpoint == NULL | |
1137 | || (type < '2' || type > '4')) | |
1138 | { | |
1139 | /* No watchpoint support or not a watchpoint command; | |
1140 | unrecognized either way. */ | |
1141 | own_buf[0] = '\0'; | |
1142 | } | |
1143 | else | |
1144 | { | |
1145 | int res; | |
1146 | ||
1147 | res = (*the_target->remove_watchpoint) (type, addr, len); | |
1148 | if (res == 0) | |
1149 | write_ok (own_buf); | |
1150 | else if (res == 1) | |
1151 | /* Unsupported. */ | |
1152 | own_buf[0] = '\0'; | |
1153 | else | |
1154 | write_enn (own_buf); | |
1155 | } | |
1156 | break; | |
1157 | } | |
c906108c SS |
1158 | case 'k': |
1159 | fprintf (stderr, "Killing inferior\n"); | |
1160 | kill_inferior (); | |
1161 | /* When using the extended protocol, we start up a new | |
c5aa993b | 1162 | debugging session. The traditional protocol will |
c906108c SS |
1163 | exit instead. */ |
1164 | if (extended_protocol) | |
1165 | { | |
1166 | write_ok (own_buf); | |
1167 | fprintf (stderr, "GDBserver restarting\n"); | |
1168 | ||
1169 | /* Wait till we are at 1st instruction in prog. */ | |
1170 | signal = start_inferior (&argv[2], &status); | |
1171 | goto restart; | |
1172 | break; | |
1173 | } | |
1174 | else | |
1175 | { | |
1176 | exit (0); | |
1177 | break; | |
1178 | } | |
1179 | case 'T': | |
a06660f7 DJ |
1180 | { |
1181 | unsigned long gdb_id, thread_id; | |
1182 | ||
1183 | gdb_id = strtoul (&own_buf[1], NULL, 16); | |
1184 | thread_id = gdb_id_to_thread_id (gdb_id); | |
1185 | if (thread_id == 0) | |
1186 | { | |
1187 | write_enn (own_buf); | |
1188 | break; | |
1189 | } | |
1190 | ||
1191 | if (mythread_alive (thread_id)) | |
1192 | write_ok (own_buf); | |
1193 | else | |
1194 | write_enn (own_buf); | |
1195 | } | |
c906108c SS |
1196 | break; |
1197 | case 'R': | |
1198 | /* Restarting the inferior is only supported in the | |
c5aa993b | 1199 | extended protocol. */ |
c906108c SS |
1200 | if (extended_protocol) |
1201 | { | |
1202 | kill_inferior (); | |
1203 | write_ok (own_buf); | |
1204 | fprintf (stderr, "GDBserver restarting\n"); | |
1205 | ||
1206 | /* Wait till we are at 1st instruction in prog. */ | |
1207 | signal = start_inferior (&argv[2], &status); | |
1208 | goto restart; | |
1209 | break; | |
1210 | } | |
1211 | else | |
1212 | { | |
1213 | /* It is a request we don't understand. Respond with an | |
1214 | empty packet so that gdb knows that we don't support this | |
1215 | request. */ | |
1216 | own_buf[0] = '\0'; | |
1217 | break; | |
1218 | } | |
64386c31 DJ |
1219 | case 'v': |
1220 | /* Extended (long) request. */ | |
1221 | handle_v_requests (own_buf, &status, &signal); | |
1222 | break; | |
c906108c SS |
1223 | default: |
1224 | /* It is a request we don't understand. Respond with an | |
c5aa993b JM |
1225 | empty packet so that gdb knows that we don't support this |
1226 | request. */ | |
c906108c SS |
1227 | own_buf[0] = '\0'; |
1228 | break; | |
1229 | } | |
1230 | ||
01f9e8fa DJ |
1231 | if (new_packet_len != -1) |
1232 | putpkt_binary (own_buf, new_packet_len); | |
1233 | else | |
1234 | putpkt (own_buf); | |
c906108c SS |
1235 | |
1236 | if (status == 'W') | |
1237 | fprintf (stderr, | |
3a7fb99b | 1238 | "\nChild exited with status %d\n", signal); |
c906108c | 1239 | if (status == 'X') |
b80864fb DJ |
1240 | fprintf (stderr, "\nChild terminated with signal = 0x%x (%s)\n", |
1241 | target_signal_to_host (signal), | |
1242 | target_signal_to_name (signal)); | |
c906108c SS |
1243 | if (status == 'W' || status == 'X') |
1244 | { | |
1245 | if (extended_protocol) | |
1246 | { | |
1247 | fprintf (stderr, "Killing inferior\n"); | |
1248 | kill_inferior (); | |
1249 | write_ok (own_buf); | |
1250 | fprintf (stderr, "GDBserver restarting\n"); | |
1251 | ||
1252 | /* Wait till we are at 1st instruction in prog. */ | |
1253 | signal = start_inferior (&argv[2], &status); | |
1254 | goto restart; | |
1255 | break; | |
1256 | } | |
1257 | else | |
1258 | { | |
1259 | fprintf (stderr, "GDBserver exiting\n"); | |
1260 | exit (0); | |
1261 | } | |
1262 | } | |
1263 | } | |
1264 | ||
1265 | /* We come here when getpkt fails. | |
1266 | ||
c5aa993b JM |
1267 | For the extended remote protocol we exit (and this is the only |
1268 | way we gracefully exit!). | |
c906108c | 1269 | |
c5aa993b JM |
1270 | For the traditional remote protocol close the connection, |
1271 | and re-open it at the top of the loop. */ | |
c906108c SS |
1272 | if (extended_protocol) |
1273 | { | |
1274 | remote_close (); | |
1275 | exit (0); | |
1276 | } | |
1277 | else | |
1278 | { | |
45b7b345 DJ |
1279 | fprintf (stderr, "Remote side has terminated connection. " |
1280 | "GDBserver will reopen the connection.\n"); | |
c906108c SS |
1281 | remote_close (); |
1282 | } | |
1283 | } | |
1284 | } |