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 | |
9 | the Free Software Foundation; either version 2 of the License, or | |
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 JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
6f0f660e EZ |
19 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
20 | Boston, MA 02110-1301, USA. */ | |
c906108c SS |
21 | |
22 | #include "server.h" | |
23 | ||
68070c10 | 24 | #if HAVE_UNISTD_H |
a9fa9f7d | 25 | #include <unistd.h> |
68070c10 PA |
26 | #endif |
27 | #if HAVE_SIGNAL_H | |
a9fa9f7d | 28 | #include <signal.h> |
68070c10 | 29 | #endif |
b80864fb | 30 | #if HAVE_SYS_WAIT_H |
a9fa9f7d | 31 | #include <sys/wait.h> |
b80864fb | 32 | #endif |
a9fa9f7d | 33 | |
a1928bad DJ |
34 | unsigned long cont_thread; |
35 | unsigned long general_thread; | |
36 | unsigned long step_thread; | |
37 | unsigned long thread_from_wait; | |
38 | unsigned long old_thread_from_wait; | |
c906108c | 39 | int extended_protocol; |
0d62e5e8 DJ |
40 | int server_waiting; |
41 | ||
c74d0ad8 DJ |
42 | /* Enable miscellaneous debugging output. The name is historical - it |
43 | was originally used to debug LinuxThreads support. */ | |
44 | int debug_threads; | |
45 | ||
89be2091 DJ |
46 | int pass_signals[TARGET_SIGNAL_LAST]; |
47 | ||
c906108c | 48 | jmp_buf toplevel; |
c906108c | 49 | |
a9fa9f7d DJ |
50 | /* The PID of the originally created or attached inferior. Used to |
51 | send signals to the process when GDB sends us an asynchronous interrupt | |
52 | (user hitting Control-C in the client), and to wait for the child to exit | |
53 | when no longer debugging it. */ | |
54 | ||
a1928bad | 55 | unsigned long signal_pid; |
a9fa9f7d | 56 | |
290fadea RS |
57 | #ifdef SIGTTOU |
58 | /* A file descriptor for the controlling terminal. */ | |
59 | int terminal_fd; | |
60 | ||
61 | /* TERMINAL_FD's original foreground group. */ | |
62 | pid_t old_foreground_pgrp; | |
63 | ||
64 | /* Hand back terminal ownership to the original foreground group. */ | |
65 | ||
66 | static void | |
67 | restore_old_foreground_pgrp (void) | |
68 | { | |
69 | tcsetpgrp (terminal_fd, old_foreground_pgrp); | |
70 | } | |
71 | #endif | |
72 | ||
fc620387 | 73 | static int |
da85418c | 74 | start_inferior (char *argv[], char *statusptr) |
c906108c | 75 | { |
b80864fb | 76 | #ifdef SIGTTOU |
a9fa9f7d DJ |
77 | signal (SIGTTOU, SIG_DFL); |
78 | signal (SIGTTIN, SIG_DFL); | |
b80864fb | 79 | #endif |
a9fa9f7d DJ |
80 | |
81 | signal_pid = create_inferior (argv[0], argv); | |
0d62e5e8 | 82 | |
c588c53c MS |
83 | /* FIXME: we don't actually know at this point that the create |
84 | actually succeeded. We won't know that until we wait. */ | |
a1928bad | 85 | fprintf (stderr, "Process %s created; pid = %ld\n", argv[0], |
a9fa9f7d | 86 | signal_pid); |
b80864fb | 87 | fflush (stderr); |
a9fa9f7d | 88 | |
b80864fb | 89 | #ifdef SIGTTOU |
a9fa9f7d DJ |
90 | signal (SIGTTOU, SIG_IGN); |
91 | signal (SIGTTIN, SIG_IGN); | |
290fadea RS |
92 | terminal_fd = fileno (stderr); |
93 | old_foreground_pgrp = tcgetpgrp (terminal_fd); | |
94 | tcsetpgrp (terminal_fd, signal_pid); | |
95 | atexit (restore_old_foreground_pgrp); | |
b80864fb | 96 | #endif |
c906108c | 97 | |
c588c53c MS |
98 | /* Wait till we are at 1st instruction in program, return signal |
99 | number (assuming success). */ | |
0d62e5e8 | 100 | return mywait (statusptr, 0); |
c906108c SS |
101 | } |
102 | ||
45b7b345 | 103 | static int |
fc620387 | 104 | attach_inferior (int pid, char *statusptr, int *sigptr) |
45b7b345 DJ |
105 | { |
106 | /* myattach should return -1 if attaching is unsupported, | |
107 | 0 if it succeeded, and call error() otherwise. */ | |
a9fa9f7d | 108 | |
45b7b345 DJ |
109 | if (myattach (pid) != 0) |
110 | return -1; | |
111 | ||
6910d122 | 112 | fprintf (stderr, "Attached; pid = %d\n", pid); |
b80864fb | 113 | fflush (stderr); |
6910d122 | 114 | |
a9fa9f7d DJ |
115 | /* FIXME - It may be that we should get the SIGNAL_PID from the |
116 | attach function, so that it can be the main thread instead of | |
117 | whichever we were told to attach to. */ | |
118 | signal_pid = pid; | |
119 | ||
0d62e5e8 | 120 | *sigptr = mywait (statusptr, 0); |
45b7b345 | 121 | |
9db87ebd DJ |
122 | /* GDB knows to ignore the first SIGSTOP after attaching to a running |
123 | process using the "attach" command, but this is different; it's | |
124 | just using "target remote". Pretend it's just starting up. */ | |
b80864fb DJ |
125 | if (*statusptr == 'T' && *sigptr == TARGET_SIGNAL_STOP) |
126 | *sigptr = TARGET_SIGNAL_TRAP; | |
9db87ebd | 127 | |
45b7b345 DJ |
128 | return 0; |
129 | } | |
130 | ||
c906108c | 131 | extern int remote_debug; |
ce3a066d | 132 | |
0876f84a DJ |
133 | /* Decode a qXfer read request. Return 0 if everything looks OK, |
134 | or -1 otherwise. */ | |
135 | ||
136 | static int | |
137 | decode_xfer_read (char *buf, char **annex, CORE_ADDR *ofs, unsigned int *len) | |
138 | { | |
139 | /* Extract and NUL-terminate the annex. */ | |
140 | *annex = buf; | |
141 | while (*buf && *buf != ':') | |
142 | buf++; | |
143 | if (*buf == '\0') | |
144 | return -1; | |
145 | *buf++ = 0; | |
146 | ||
0e7f50da | 147 | /* After the read marker and annex, qXfer looks like a |
0876f84a DJ |
148 | traditional 'm' packet. */ |
149 | decode_m_packet (buf, ofs, len); | |
150 | ||
151 | return 0; | |
152 | } | |
153 | ||
154 | /* Write the response to a successful qXfer read. Returns the | |
155 | length of the (binary) data stored in BUF, corresponding | |
156 | to as much of DATA/LEN as we could fit. IS_MORE controls | |
157 | the first character of the response. */ | |
158 | static int | |
23181151 | 159 | write_qxfer_response (char *buf, const void *data, int len, int is_more) |
0876f84a DJ |
160 | { |
161 | int out_len; | |
162 | ||
163 | if (is_more) | |
164 | buf[0] = 'm'; | |
165 | else | |
166 | buf[0] = 'l'; | |
167 | ||
168 | return remote_escape_output (data, len, (unsigned char *) buf + 1, &out_len, | |
169 | PBUFSIZ - 2) + 1; | |
170 | } | |
171 | ||
89be2091 DJ |
172 | /* Handle all of the extended 'Q' packets. */ |
173 | void | |
174 | handle_general_set (char *own_buf) | |
175 | { | |
176 | if (strncmp ("QPassSignals:", own_buf, strlen ("QPassSignals:")) == 0) | |
177 | { | |
178 | int numsigs = (int) TARGET_SIGNAL_LAST, i; | |
179 | const char *p = own_buf + strlen ("QPassSignals:"); | |
180 | CORE_ADDR cursig; | |
181 | ||
182 | p = decode_address_to_semicolon (&cursig, p); | |
183 | for (i = 0; i < numsigs; i++) | |
184 | { | |
185 | if (i == cursig) | |
186 | { | |
187 | pass_signals[i] = 1; | |
188 | if (*p == '\0') | |
189 | /* Keep looping, to clear the remaining signals. */ | |
190 | cursig = -1; | |
191 | else | |
192 | p = decode_address_to_semicolon (&cursig, p); | |
193 | } | |
194 | else | |
195 | pass_signals[i] = 0; | |
196 | } | |
197 | strcpy (own_buf, "OK"); | |
198 | return; | |
199 | } | |
200 | ||
201 | /* Otherwise we didn't know what packet it was. Say we didn't | |
202 | understand it. */ | |
203 | own_buf[0] = 0; | |
204 | } | |
205 | ||
23181151 | 206 | static const char * |
fb1e4ffc | 207 | get_features_xml (const char *annex) |
23181151 DJ |
208 | { |
209 | static int features_supported = -1; | |
210 | static char *document; | |
211 | ||
fb1e4ffc DJ |
212 | #ifdef USE_XML |
213 | extern const char *const xml_builtin[][2]; | |
214 | int i; | |
215 | ||
216 | /* Look for the annex. */ | |
217 | for (i = 0; xml_builtin[i][0] != NULL; i++) | |
218 | if (strcmp (annex, xml_builtin[i][0]) == 0) | |
219 | break; | |
220 | ||
221 | if (xml_builtin[i][0] != NULL) | |
222 | return xml_builtin[i][1]; | |
223 | #endif | |
224 | ||
225 | if (strcmp (annex, "target.xml") != 0) | |
226 | return NULL; | |
227 | ||
23181151 DJ |
228 | if (features_supported == -1) |
229 | { | |
820f2bda PA |
230 | const char *arch = NULL; |
231 | if (the_target->arch_string != NULL) | |
232 | arch = (*the_target->arch_string) (); | |
23181151 DJ |
233 | |
234 | if (arch == NULL) | |
235 | features_supported = 0; | |
236 | else | |
237 | { | |
238 | features_supported = 1; | |
239 | document = malloc (64 + strlen (arch)); | |
240 | snprintf (document, 64 + strlen (arch), | |
241 | "<target><architecture>%s</architecture></target>", | |
242 | arch); | |
243 | } | |
244 | } | |
245 | ||
246 | return document; | |
247 | } | |
248 | ||
c74d0ad8 DJ |
249 | void |
250 | monitor_show_help (void) | |
251 | { | |
252 | monitor_output ("The following monitor commands are supported:\n"); | |
253 | monitor_output (" set debug <0|1>\n"); | |
254 | monitor_output (" Enable general debugging messages\n"); | |
255 | monitor_output (" set remote-debug <0|1>\n"); | |
256 | monitor_output (" Enable remote protocol debugging messages\n"); | |
257 | } | |
258 | ||
ce3a066d DJ |
259 | /* Handle all of the extended 'q' packets. */ |
260 | void | |
0e7f50da | 261 | handle_query (char *own_buf, int packet_len, int *new_packet_len_p) |
ce3a066d | 262 | { |
0d62e5e8 DJ |
263 | static struct inferior_list_entry *thread_ptr; |
264 | ||
bb63802a UW |
265 | /* Reply the current thread id. */ |
266 | if (strcmp ("qC", own_buf) == 0) | |
267 | { | |
268 | thread_ptr = all_threads.head; | |
269 | sprintf (own_buf, "QC%x", | |
270 | thread_to_gdb_id ((struct thread_info *)thread_ptr)); | |
271 | return; | |
272 | } | |
273 | ||
ce3a066d DJ |
274 | if (strcmp ("qSymbol::", own_buf) == 0) |
275 | { | |
2f2893d9 DJ |
276 | if (the_target->look_up_symbols != NULL) |
277 | (*the_target->look_up_symbols) (); | |
278 | ||
ce3a066d DJ |
279 | strcpy (own_buf, "OK"); |
280 | return; | |
281 | } | |
282 | ||
0d62e5e8 DJ |
283 | if (strcmp ("qfThreadInfo", own_buf) == 0) |
284 | { | |
285 | thread_ptr = all_threads.head; | |
a06660f7 | 286 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
0d62e5e8 DJ |
287 | thread_ptr = thread_ptr->next; |
288 | return; | |
289 | } | |
aa691b87 | 290 | |
0d62e5e8 DJ |
291 | if (strcmp ("qsThreadInfo", own_buf) == 0) |
292 | { | |
293 | if (thread_ptr != NULL) | |
294 | { | |
a06660f7 | 295 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
0d62e5e8 DJ |
296 | thread_ptr = thread_ptr->next; |
297 | return; | |
298 | } | |
299 | else | |
300 | { | |
301 | sprintf (own_buf, "l"); | |
302 | return; | |
303 | } | |
304 | } | |
aa691b87 | 305 | |
52fb6437 NS |
306 | if (the_target->read_offsets != NULL |
307 | && strcmp ("qOffsets", own_buf) == 0) | |
308 | { | |
309 | CORE_ADDR text, data; | |
310 | ||
311 | if (the_target->read_offsets (&text, &data)) | |
312 | sprintf (own_buf, "Text=%lX;Data=%lX;Bss=%lX", | |
313 | (long)text, (long)data, (long)data); | |
314 | else | |
315 | write_enn (own_buf); | |
316 | ||
317 | return; | |
318 | } | |
319 | ||
0e7f50da UW |
320 | if (the_target->qxfer_spu != NULL |
321 | && strncmp ("qXfer:spu:read:", own_buf, 15) == 0) | |
322 | { | |
323 | char *annex; | |
324 | int n; | |
325 | unsigned int len; | |
326 | CORE_ADDR ofs; | |
327 | unsigned char *spu_buf; | |
328 | ||
329 | strcpy (own_buf, "E00"); | |
330 | if (decode_xfer_read (own_buf + 15, &annex, &ofs, &len) < 0) | |
331 | return; | |
332 | if (len > PBUFSIZ - 2) | |
333 | len = PBUFSIZ - 2; | |
334 | spu_buf = malloc (len + 1); | |
335 | if (!spu_buf) | |
336 | return; | |
337 | ||
338 | n = (*the_target->qxfer_spu) (annex, spu_buf, NULL, ofs, len + 1); | |
339 | if (n < 0) | |
340 | write_enn (own_buf); | |
341 | else if (n > len) | |
342 | *new_packet_len_p = write_qxfer_response | |
343 | (own_buf, spu_buf, len, 1); | |
344 | else | |
345 | *new_packet_len_p = write_qxfer_response | |
346 | (own_buf, spu_buf, n, 0); | |
347 | ||
348 | free (spu_buf); | |
349 | return; | |
350 | } | |
351 | ||
352 | if (the_target->qxfer_spu != NULL | |
353 | && strncmp ("qXfer:spu:write:", own_buf, 16) == 0) | |
354 | { | |
355 | char *annex; | |
356 | int n; | |
357 | unsigned int len; | |
358 | CORE_ADDR ofs; | |
359 | unsigned char *spu_buf; | |
360 | ||
361 | strcpy (own_buf, "E00"); | |
362 | spu_buf = malloc (packet_len - 15); | |
363 | if (!spu_buf) | |
364 | return; | |
365 | if (decode_xfer_write (own_buf + 16, packet_len - 16, &annex, | |
366 | &ofs, &len, spu_buf) < 0) | |
367 | { | |
368 | free (spu_buf); | |
369 | return; | |
370 | } | |
371 | ||
372 | n = (*the_target->qxfer_spu) | |
373 | (annex, NULL, (unsigned const char *)spu_buf, ofs, len); | |
374 | if (n < 0) | |
375 | write_enn (own_buf); | |
376 | else | |
377 | sprintf (own_buf, "%x", n); | |
378 | ||
379 | free (spu_buf); | |
380 | return; | |
381 | } | |
382 | ||
aa691b87 | 383 | if (the_target->read_auxv != NULL |
0876f84a | 384 | && strncmp ("qXfer:auxv:read:", own_buf, 16) == 0) |
aa691b87 | 385 | { |
0876f84a DJ |
386 | unsigned char *data; |
387 | int n; | |
aa691b87 RM |
388 | CORE_ADDR ofs; |
389 | unsigned int len; | |
0876f84a DJ |
390 | char *annex; |
391 | ||
392 | /* Reject any annex; grab the offset and length. */ | |
393 | if (decode_xfer_read (own_buf + 16, &annex, &ofs, &len) < 0 | |
394 | || annex[0] != '\0') | |
395 | { | |
396 | strcpy (own_buf, "E00"); | |
397 | return; | |
398 | } | |
399 | ||
400 | /* Read one extra byte, as an indicator of whether there is | |
401 | more. */ | |
402 | if (len > PBUFSIZ - 2) | |
403 | len = PBUFSIZ - 2; | |
404 | data = malloc (len + 1); | |
405 | n = (*the_target->read_auxv) (ofs, data, len + 1); | |
000ef4f0 DJ |
406 | if (n < 0) |
407 | write_enn (own_buf); | |
408 | else if (n > len) | |
0876f84a | 409 | *new_packet_len_p = write_qxfer_response (own_buf, data, len, 1); |
aa691b87 | 410 | else |
0876f84a DJ |
411 | *new_packet_len_p = write_qxfer_response (own_buf, data, n, 0); |
412 | ||
413 | free (data); | |
414 | ||
aa691b87 RM |
415 | return; |
416 | } | |
417 | ||
23181151 DJ |
418 | if (strncmp ("qXfer:features:read:", own_buf, 20) == 0) |
419 | { | |
420 | CORE_ADDR ofs; | |
421 | unsigned int len, total_len; | |
422 | const char *document; | |
423 | char *annex; | |
424 | ||
fb1e4ffc DJ |
425 | /* Check for support. */ |
426 | document = get_features_xml ("target.xml"); | |
23181151 DJ |
427 | if (document == NULL) |
428 | { | |
429 | own_buf[0] = '\0'; | |
430 | return; | |
431 | } | |
432 | ||
fb1e4ffc DJ |
433 | /* Grab the annex, offset, and length. */ |
434 | if (decode_xfer_read (own_buf + 20, &annex, &ofs, &len) < 0) | |
435 | { | |
436 | strcpy (own_buf, "E00"); | |
437 | return; | |
438 | } | |
439 | ||
440 | /* Now grab the correct annex. */ | |
441 | document = get_features_xml (annex); | |
442 | if (document == NULL) | |
23181151 DJ |
443 | { |
444 | strcpy (own_buf, "E00"); | |
445 | return; | |
446 | } | |
447 | ||
448 | total_len = strlen (document); | |
449 | if (len > PBUFSIZ - 2) | |
450 | len = PBUFSIZ - 2; | |
451 | ||
452 | if (ofs > total_len) | |
453 | write_enn (own_buf); | |
454 | else if (len < total_len - ofs) | |
455 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
456 | len, 1); | |
457 | else | |
458 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
459 | total_len - ofs, 0); | |
460 | ||
461 | return; | |
462 | } | |
463 | ||
255e7678 DJ |
464 | if (strncmp ("qXfer:libraries:read:", own_buf, 21) == 0) |
465 | { | |
466 | CORE_ADDR ofs; | |
467 | unsigned int len, total_len; | |
468 | char *document, *p; | |
469 | struct inferior_list_entry *dll_ptr; | |
470 | char *annex; | |
471 | ||
472 | /* Reject any annex; grab the offset and length. */ | |
473 | if (decode_xfer_read (own_buf + 21, &annex, &ofs, &len) < 0 | |
474 | || annex[0] != '\0') | |
475 | { | |
476 | strcpy (own_buf, "E00"); | |
477 | return; | |
478 | } | |
479 | ||
480 | /* Over-estimate the necessary memory. Assume that every character | |
481 | in the library name must be escaped. */ | |
482 | total_len = 64; | |
483 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
484 | total_len += 128 + 6 * strlen (((struct dll_info *) dll_ptr)->name); | |
485 | ||
486 | document = malloc (total_len); | |
487 | strcpy (document, "<library-list>\n"); | |
488 | p = document + strlen (document); | |
489 | ||
490 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
491 | { | |
492 | struct dll_info *dll = (struct dll_info *) dll_ptr; | |
493 | char *name; | |
494 | ||
495 | strcpy (p, " <library name=\""); | |
496 | p = p + strlen (p); | |
497 | name = xml_escape_text (dll->name); | |
498 | strcpy (p, name); | |
499 | free (name); | |
500 | p = p + strlen (p); | |
501 | strcpy (p, "\"><segment address=\""); | |
502 | p = p + strlen (p); | |
503 | sprintf (p, "0x%lx", (long) dll->base_addr); | |
504 | p = p + strlen (p); | |
505 | strcpy (p, "\"/></library>\n"); | |
506 | p = p + strlen (p); | |
507 | } | |
508 | ||
509 | strcpy (p, "</library-list>\n"); | |
510 | ||
511 | total_len = strlen (document); | |
512 | if (len > PBUFSIZ - 2) | |
513 | len = PBUFSIZ - 2; | |
514 | ||
515 | if (ofs > total_len) | |
516 | write_enn (own_buf); | |
517 | else if (len < total_len - ofs) | |
518 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
519 | len, 1); | |
520 | else | |
521 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
522 | total_len - ofs, 0); | |
523 | ||
524 | free (document); | |
525 | return; | |
526 | } | |
527 | ||
be2a5f71 DJ |
528 | /* Protocol features query. */ |
529 | if (strncmp ("qSupported", own_buf, 10) == 0 | |
530 | && (own_buf[10] == ':' || own_buf[10] == '\0')) | |
531 | { | |
89be2091 | 532 | sprintf (own_buf, "PacketSize=%x;QPassSignals+", PBUFSIZ - 1); |
0876f84a | 533 | |
255e7678 DJ |
534 | /* We do not have any hook to indicate whether the target backend |
535 | supports qXfer:libraries:read, so always report it. */ | |
536 | strcat (own_buf, ";qXfer:libraries:read+"); | |
537 | ||
0876f84a | 538 | if (the_target->read_auxv != NULL) |
9f2e1e63 | 539 | strcat (own_buf, ";qXfer:auxv:read+"); |
0e7f50da UW |
540 | |
541 | if (the_target->qxfer_spu != NULL) | |
542 | strcat (own_buf, ";qXfer:spu:read+;qXfer:spu:write+"); | |
0876f84a | 543 | |
fb1e4ffc | 544 | if (get_features_xml ("target.xml") != NULL) |
23181151 DJ |
545 | strcat (own_buf, ";qXfer:features:read+"); |
546 | ||
be2a5f71 DJ |
547 | return; |
548 | } | |
549 | ||
dae5f5cf DJ |
550 | /* Thread-local storage support. */ |
551 | if (the_target->get_tls_address != NULL | |
552 | && strncmp ("qGetTLSAddr:", own_buf, 12) == 0) | |
553 | { | |
554 | char *p = own_buf + 12; | |
555 | CORE_ADDR parts[3], address = 0; | |
556 | int i, err; | |
557 | ||
558 | for (i = 0; i < 3; i++) | |
559 | { | |
560 | char *p2; | |
561 | int len; | |
562 | ||
563 | if (p == NULL) | |
564 | break; | |
565 | ||
566 | p2 = strchr (p, ','); | |
567 | if (p2) | |
568 | { | |
569 | len = p2 - p; | |
570 | p2++; | |
571 | } | |
572 | else | |
573 | { | |
574 | len = strlen (p); | |
575 | p2 = NULL; | |
576 | } | |
577 | ||
578 | decode_address (&parts[i], p, len); | |
579 | p = p2; | |
580 | } | |
581 | ||
582 | if (p != NULL || i < 3) | |
583 | err = 1; | |
584 | else | |
585 | { | |
586 | struct thread_info *thread = gdb_id_to_thread (parts[0]); | |
587 | ||
588 | if (thread == NULL) | |
589 | err = 2; | |
590 | else | |
591 | err = the_target->get_tls_address (thread, parts[1], parts[2], | |
592 | &address); | |
593 | } | |
594 | ||
595 | if (err == 0) | |
596 | { | |
597 | sprintf (own_buf, "%llx", address); | |
598 | return; | |
599 | } | |
600 | else if (err > 0) | |
601 | { | |
602 | write_enn (own_buf); | |
603 | return; | |
604 | } | |
605 | ||
606 | /* Otherwise, pretend we do not understand this packet. */ | |
607 | } | |
608 | ||
c74d0ad8 DJ |
609 | /* Handle "monitor" commands. */ |
610 | if (strncmp ("qRcmd,", own_buf, 6) == 0) | |
611 | { | |
612 | char *mon = malloc (PBUFSIZ); | |
613 | int len = strlen (own_buf + 6); | |
614 | ||
615 | if ((len % 1) != 0 || unhexify (mon, own_buf + 6, len / 2) != len / 2) | |
616 | { | |
617 | write_enn (own_buf); | |
618 | free (mon); | |
619 | return; | |
620 | } | |
621 | mon[len / 2] = '\0'; | |
622 | ||
623 | write_ok (own_buf); | |
624 | ||
625 | if (strcmp (mon, "set debug 1") == 0) | |
626 | { | |
627 | debug_threads = 1; | |
628 | monitor_output ("Debug output enabled.\n"); | |
629 | } | |
630 | else if (strcmp (mon, "set debug 0") == 0) | |
631 | { | |
632 | debug_threads = 0; | |
633 | monitor_output ("Debug output disabled.\n"); | |
634 | } | |
635 | else if (strcmp (mon, "set remote-debug 1") == 0) | |
636 | { | |
637 | remote_debug = 1; | |
638 | monitor_output ("Protocol debug output enabled.\n"); | |
639 | } | |
640 | else if (strcmp (mon, "set remote-debug 0") == 0) | |
641 | { | |
642 | remote_debug = 0; | |
643 | monitor_output ("Protocol debug output disabled.\n"); | |
644 | } | |
645 | else if (strcmp (mon, "help") == 0) | |
646 | monitor_show_help (); | |
647 | else | |
648 | { | |
649 | monitor_output ("Unknown monitor command.\n\n"); | |
650 | monitor_show_help (); | |
651 | write_enn (own_buf); | |
652 | } | |
653 | ||
654 | free (mon); | |
655 | return; | |
656 | } | |
657 | ||
ce3a066d DJ |
658 | /* Otherwise we didn't know what packet it was. Say we didn't |
659 | understand it. */ | |
660 | own_buf[0] = 0; | |
661 | } | |
662 | ||
64386c31 DJ |
663 | /* Parse vCont packets. */ |
664 | void | |
fc620387 | 665 | handle_v_cont (char *own_buf, char *status, int *signal) |
64386c31 DJ |
666 | { |
667 | char *p, *q; | |
668 | int n = 0, i = 0; | |
669 | struct thread_resume *resume_info, default_action; | |
670 | ||
671 | /* Count the number of semicolons in the packet. There should be one | |
672 | for every action. */ | |
673 | p = &own_buf[5]; | |
674 | while (p) | |
675 | { | |
676 | n++; | |
677 | p++; | |
678 | p = strchr (p, ';'); | |
679 | } | |
680 | /* Allocate room for one extra action, for the default remain-stopped | |
681 | behavior; if no default action is in the list, we'll need the extra | |
682 | slot. */ | |
683 | resume_info = malloc ((n + 1) * sizeof (resume_info[0])); | |
684 | ||
685 | default_action.thread = -1; | |
686 | default_action.leave_stopped = 1; | |
687 | default_action.step = 0; | |
688 | default_action.sig = 0; | |
689 | ||
690 | p = &own_buf[5]; | |
691 | i = 0; | |
692 | while (*p) | |
693 | { | |
694 | p++; | |
695 | ||
696 | resume_info[i].leave_stopped = 0; | |
697 | ||
698 | if (p[0] == 's' || p[0] == 'S') | |
699 | resume_info[i].step = 1; | |
700 | else if (p[0] == 'c' || p[0] == 'C') | |
701 | resume_info[i].step = 0; | |
702 | else | |
703 | goto err; | |
704 | ||
705 | if (p[0] == 'S' || p[0] == 'C') | |
706 | { | |
707 | int sig; | |
708 | sig = strtol (p + 1, &q, 16); | |
709 | if (p == q) | |
710 | goto err; | |
711 | p = q; | |
712 | ||
713 | if (!target_signal_to_host_p (sig)) | |
714 | goto err; | |
715 | resume_info[i].sig = target_signal_to_host (sig); | |
716 | } | |
717 | else | |
718 | { | |
719 | resume_info[i].sig = 0; | |
720 | p = p + 1; | |
721 | } | |
722 | ||
723 | if (p[0] == 0) | |
724 | { | |
725 | resume_info[i].thread = -1; | |
726 | default_action = resume_info[i]; | |
727 | ||
728 | /* Note: we don't increment i here, we'll overwrite this entry | |
729 | the next time through. */ | |
730 | } | |
731 | else if (p[0] == ':') | |
732 | { | |
a06660f7 DJ |
733 | unsigned int gdb_id = strtoul (p + 1, &q, 16); |
734 | unsigned long thread_id; | |
735 | ||
64386c31 DJ |
736 | if (p == q) |
737 | goto err; | |
738 | p = q; | |
739 | if (p[0] != ';' && p[0] != 0) | |
740 | goto err; | |
741 | ||
a06660f7 DJ |
742 | thread_id = gdb_id_to_thread_id (gdb_id); |
743 | if (thread_id) | |
744 | resume_info[i].thread = thread_id; | |
745 | else | |
746 | goto err; | |
747 | ||
64386c31 DJ |
748 | i++; |
749 | } | |
750 | } | |
751 | ||
752 | resume_info[i] = default_action; | |
753 | ||
754 | /* Still used in occasional places in the backend. */ | |
755 | if (n == 1 && resume_info[0].thread != -1) | |
756 | cont_thread = resume_info[0].thread; | |
757 | else | |
758 | cont_thread = -1; | |
dc3f8883 | 759 | set_desired_inferior (0); |
64386c31 DJ |
760 | |
761 | (*the_target->resume) (resume_info); | |
762 | ||
763 | free (resume_info); | |
764 | ||
765 | *signal = mywait (status, 1); | |
766 | prepare_resume_reply (own_buf, *status, *signal); | |
767 | return; | |
768 | ||
769 | err: | |
255e7678 | 770 | write_enn (own_buf); |
64386c31 DJ |
771 | free (resume_info); |
772 | return; | |
773 | } | |
774 | ||
775 | /* Handle all of the extended 'v' packets. */ | |
776 | void | |
fc620387 | 777 | handle_v_requests (char *own_buf, char *status, int *signal) |
64386c31 DJ |
778 | { |
779 | if (strncmp (own_buf, "vCont;", 6) == 0) | |
780 | { | |
781 | handle_v_cont (own_buf, status, signal); | |
782 | return; | |
783 | } | |
784 | ||
785 | if (strncmp (own_buf, "vCont?", 6) == 0) | |
786 | { | |
787 | strcpy (own_buf, "vCont;c;C;s;S"); | |
788 | return; | |
789 | } | |
790 | ||
791 | /* Otherwise we didn't know what packet it was. Say we didn't | |
792 | understand it. */ | |
793 | own_buf[0] = 0; | |
794 | return; | |
795 | } | |
796 | ||
797 | void | |
798 | myresume (int step, int sig) | |
799 | { | |
800 | struct thread_resume resume_info[2]; | |
801 | int n = 0; | |
802 | ||
d592fa2f | 803 | if (step || sig || (cont_thread != 0 && cont_thread != -1)) |
64386c31 DJ |
804 | { |
805 | resume_info[0].thread | |
806 | = ((struct inferior_list_entry *) current_inferior)->id; | |
807 | resume_info[0].step = step; | |
808 | resume_info[0].sig = sig; | |
809 | resume_info[0].leave_stopped = 0; | |
810 | n++; | |
811 | } | |
812 | resume_info[n].thread = -1; | |
813 | resume_info[n].step = 0; | |
814 | resume_info[n].sig = 0; | |
d592fa2f | 815 | resume_info[n].leave_stopped = (cont_thread != 0 && cont_thread != -1); |
64386c31 DJ |
816 | |
817 | (*the_target->resume) (resume_info); | |
818 | } | |
819 | ||
0729219d | 820 | static int attached; |
c906108c | 821 | |
dd24457d DJ |
822 | static void |
823 | gdbserver_version (void) | |
824 | { | |
825 | printf ("GNU gdbserver %s\n" | |
255e7678 | 826 | "Copyright (C) 2007 Free Software Foundation, Inc.\n" |
dd24457d DJ |
827 | "gdbserver is free software, covered by the GNU General Public License.\n" |
828 | "This gdbserver was configured as \"%s\"\n", | |
829 | version, host_name); | |
830 | } | |
831 | ||
0bc68c49 DJ |
832 | static void |
833 | gdbserver_usage (void) | |
834 | { | |
dd24457d DJ |
835 | printf ("Usage:\tgdbserver COMM PROG [ARGS ...]\n" |
836 | "\tgdbserver COMM --attach PID\n" | |
837 | "\n" | |
838 | "COMM may either be a tty device (for serial debugging), or \n" | |
839 | "HOST:PORT to listen for a TCP connection.\n"); | |
0bc68c49 DJ |
840 | } |
841 | ||
c906108c | 842 | int |
da85418c | 843 | main (int argc, char *argv[]) |
c906108c | 844 | { |
f450004a | 845 | char ch, status, *own_buf; |
7fb85e41 | 846 | unsigned char *mem_buf; |
c906108c | 847 | int i = 0; |
fc620387 | 848 | int signal; |
c906108c SS |
849 | unsigned int len; |
850 | CORE_ADDR mem_addr; | |
0729219d DJ |
851 | int bad_attach; |
852 | int pid; | |
45b7b345 | 853 | char *arg_end; |
c906108c | 854 | |
dd24457d DJ |
855 | if (argc >= 2 && strcmp (argv[1], "--version") == 0) |
856 | { | |
857 | gdbserver_version (); | |
858 | exit (0); | |
859 | } | |
860 | ||
861 | if (argc >= 2 && strcmp (argv[1], "--help") == 0) | |
862 | { | |
863 | gdbserver_usage (); | |
864 | exit (0); | |
865 | } | |
866 | ||
c5aa993b | 867 | if (setjmp (toplevel)) |
c906108c | 868 | { |
c5aa993b JM |
869 | fprintf (stderr, "Exiting\n"); |
870 | exit (1); | |
c906108c SS |
871 | } |
872 | ||
0729219d DJ |
873 | bad_attach = 0; |
874 | pid = 0; | |
875 | attached = 0; | |
45b7b345 DJ |
876 | if (argc >= 3 && strcmp (argv[2], "--attach") == 0) |
877 | { | |
878 | if (argc == 4 | |
506c7aa0 | 879 | && argv[3][0] != '\0' |
45b7b345 DJ |
880 | && (pid = strtoul (argv[3], &arg_end, 10)) != 0 |
881 | && *arg_end == '\0') | |
882 | { | |
883 | ; | |
884 | } | |
885 | else | |
886 | bad_attach = 1; | |
887 | } | |
888 | ||
889 | if (argc < 3 || bad_attach) | |
dd24457d DJ |
890 | { |
891 | gdbserver_usage (); | |
892 | exit (1); | |
893 | } | |
c906108c | 894 | |
4ce44c66 JM |
895 | initialize_low (); |
896 | ||
255e7678 | 897 | own_buf = malloc (PBUFSIZ + 1); |
7fb85e41 | 898 | mem_buf = malloc (PBUFSIZ); |
0a30fbc4 | 899 | |
45b7b345 DJ |
900 | if (pid == 0) |
901 | { | |
902 | /* Wait till we are at first instruction in program. */ | |
903 | signal = start_inferior (&argv[2], &status); | |
c906108c | 904 | |
c588c53c MS |
905 | /* We are now (hopefully) stopped at the first instruction of |
906 | the target process. This assumes that the target process was | |
907 | successfully created. */ | |
255e7678 DJ |
908 | |
909 | /* Don't report shared library events on the initial connection, | |
910 | even if some libraries are preloaded. */ | |
911 | dlls_changed = 0; | |
45b7b345 DJ |
912 | } |
913 | else | |
914 | { | |
915 | switch (attach_inferior (pid, &status, &signal)) | |
916 | { | |
917 | case -1: | |
918 | error ("Attaching not supported on this target"); | |
919 | break; | |
920 | default: | |
921 | attached = 1; | |
922 | break; | |
923 | } | |
924 | } | |
c906108c | 925 | |
8264bb58 DJ |
926 | if (setjmp (toplevel)) |
927 | { | |
928 | fprintf (stderr, "Killing inferior\n"); | |
929 | kill_inferior (); | |
930 | exit (1); | |
931 | } | |
932 | ||
c588c53c MS |
933 | if (status == 'W' || status == 'X') |
934 | { | |
935 | fprintf (stderr, "No inferior, GDBserver exiting.\n"); | |
936 | exit (1); | |
937 | } | |
938 | ||
c906108c SS |
939 | while (1) |
940 | { | |
941 | remote_open (argv[1]); | |
942 | ||
c5aa993b JM |
943 | restart: |
944 | setjmp (toplevel); | |
01f9e8fa | 945 | while (1) |
c906108c SS |
946 | { |
947 | unsigned char sig; | |
01f9e8fa DJ |
948 | int packet_len; |
949 | int new_packet_len = -1; | |
950 | ||
951 | packet_len = getpkt (own_buf); | |
952 | if (packet_len <= 0) | |
953 | break; | |
954 | ||
c906108c SS |
955 | i = 0; |
956 | ch = own_buf[i++]; | |
957 | switch (ch) | |
958 | { | |
ce3a066d | 959 | case 'q': |
0e7f50da | 960 | handle_query (own_buf, packet_len, &new_packet_len); |
ce3a066d | 961 | break; |
89be2091 DJ |
962 | case 'Q': |
963 | handle_general_set (own_buf); | |
964 | break; | |
6ad8ae5c DJ |
965 | case 'D': |
966 | fprintf (stderr, "Detaching from inferior\n"); | |
444d6139 | 967 | if (detach_inferior () != 0) |
6ad8ae5c | 968 | { |
444d6139 PA |
969 | write_enn (own_buf); |
970 | putpkt (own_buf); | |
6ad8ae5c | 971 | } |
444d6139 PA |
972 | else |
973 | { | |
974 | write_ok (own_buf); | |
975 | putpkt (own_buf); | |
976 | remote_close (); | |
6ad8ae5c | 977 | |
444d6139 PA |
978 | /* If we are attached, then we can exit. Otherwise, we |
979 | need to hang around doing nothing, until the child | |
980 | is gone. */ | |
981 | if (!attached) | |
982 | join_inferior (); | |
6ad8ae5c | 983 | |
444d6139 PA |
984 | exit (0); |
985 | } | |
c906108c | 986 | case '!': |
45b7b345 DJ |
987 | if (attached == 0) |
988 | { | |
989 | extended_protocol = 1; | |
990 | prepare_resume_reply (own_buf, status, signal); | |
991 | } | |
992 | else | |
993 | { | |
994 | /* We can not use the extended protocol if we are | |
995 | attached, because we can not restart the running | |
996 | program. So return unrecognized. */ | |
997 | own_buf[0] = '\0'; | |
998 | } | |
c906108c SS |
999 | break; |
1000 | case '?': | |
1001 | prepare_resume_reply (own_buf, status, signal); | |
1002 | break; | |
1003 | case 'H': | |
a06660f7 | 1004 | if (own_buf[1] == 'c' || own_buf[1] == 'g' || own_buf[1] == 's') |
c906108c | 1005 | { |
a06660f7 DJ |
1006 | unsigned long gdb_id, thread_id; |
1007 | ||
1008 | gdb_id = strtoul (&own_buf[2], NULL, 16); | |
1009 | thread_id = gdb_id_to_thread_id (gdb_id); | |
1010 | if (thread_id == 0) | |
1011 | { | |
1012 | write_enn (own_buf); | |
1013 | break; | |
1014 | } | |
1015 | ||
1016 | if (own_buf[1] == 'g') | |
1017 | { | |
1018 | general_thread = thread_id; | |
1019 | set_desired_inferior (1); | |
1020 | } | |
1021 | else if (own_buf[1] == 'c') | |
1022 | cont_thread = thread_id; | |
1023 | else if (own_buf[1] == 's') | |
1024 | step_thread = thread_id; | |
1025 | ||
0d62e5e8 | 1026 | write_ok (own_buf); |
a06660f7 DJ |
1027 | } |
1028 | else | |
1029 | { | |
c906108c SS |
1030 | /* Silently ignore it so that gdb can extend the protocol |
1031 | without compatibility headaches. */ | |
1032 | own_buf[0] = '\0'; | |
c906108c SS |
1033 | } |
1034 | break; | |
1035 | case 'g': | |
0d62e5e8 | 1036 | set_desired_inferior (1); |
0a30fbc4 | 1037 | registers_to_string (own_buf); |
c906108c SS |
1038 | break; |
1039 | case 'G': | |
0d62e5e8 | 1040 | set_desired_inferior (1); |
0a30fbc4 | 1041 | registers_from_string (&own_buf[1]); |
c906108c SS |
1042 | write_ok (own_buf); |
1043 | break; | |
1044 | case 'm': | |
1045 | decode_m_packet (&own_buf[1], &mem_addr, &len); | |
c3e735a6 DJ |
1046 | if (read_inferior_memory (mem_addr, mem_buf, len) == 0) |
1047 | convert_int_to_ascii (mem_buf, own_buf, len); | |
1048 | else | |
1049 | write_enn (own_buf); | |
c906108c SS |
1050 | break; |
1051 | case 'M': | |
1052 | decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf); | |
1053 | if (write_inferior_memory (mem_addr, mem_buf, len) == 0) | |
1054 | write_ok (own_buf); | |
1055 | else | |
1056 | write_enn (own_buf); | |
1057 | break; | |
01f9e8fa DJ |
1058 | case 'X': |
1059 | if (decode_X_packet (&own_buf[1], packet_len - 1, | |
1060 | &mem_addr, &len, mem_buf) < 0 | |
1061 | || write_inferior_memory (mem_addr, mem_buf, len) != 0) | |
1062 | write_enn (own_buf); | |
1063 | else | |
1064 | write_ok (own_buf); | |
1065 | break; | |
c906108c SS |
1066 | case 'C': |
1067 | convert_ascii_to_int (own_buf + 1, &sig, 1); | |
0e98d0a7 DJ |
1068 | if (target_signal_to_host_p (sig)) |
1069 | signal = target_signal_to_host (sig); | |
1070 | else | |
1071 | signal = 0; | |
0d62e5e8 | 1072 | set_desired_inferior (0); |
0e98d0a7 | 1073 | myresume (0, signal); |
0d62e5e8 | 1074 | signal = mywait (&status, 1); |
c906108c SS |
1075 | prepare_resume_reply (own_buf, status, signal); |
1076 | break; | |
1077 | case 'S': | |
1078 | convert_ascii_to_int (own_buf + 1, &sig, 1); | |
0e98d0a7 DJ |
1079 | if (target_signal_to_host_p (sig)) |
1080 | signal = target_signal_to_host (sig); | |
1081 | else | |
1082 | signal = 0; | |
0d62e5e8 | 1083 | set_desired_inferior (0); |
0e98d0a7 | 1084 | myresume (1, signal); |
0d62e5e8 | 1085 | signal = mywait (&status, 1); |
c906108c SS |
1086 | prepare_resume_reply (own_buf, status, signal); |
1087 | break; | |
1088 | case 'c': | |
0d62e5e8 | 1089 | set_desired_inferior (0); |
c906108c | 1090 | myresume (0, 0); |
0d62e5e8 | 1091 | signal = mywait (&status, 1); |
c906108c SS |
1092 | prepare_resume_reply (own_buf, status, signal); |
1093 | break; | |
1094 | case 's': | |
0d62e5e8 | 1095 | set_desired_inferior (0); |
c906108c | 1096 | myresume (1, 0); |
0d62e5e8 | 1097 | signal = mywait (&status, 1); |
c906108c SS |
1098 | prepare_resume_reply (own_buf, status, signal); |
1099 | break; | |
e013ee27 OF |
1100 | case 'Z': |
1101 | { | |
1102 | char *lenptr; | |
1103 | char *dataptr; | |
1104 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1105 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1106 | char type = own_buf[1]; | |
1107 | ||
1108 | if (the_target->insert_watchpoint == NULL | |
1109 | || (type < '2' || type > '4')) | |
1110 | { | |
1111 | /* No watchpoint support or not a watchpoint command; | |
1112 | unrecognized either way. */ | |
1113 | own_buf[0] = '\0'; | |
1114 | } | |
1115 | else | |
1116 | { | |
1117 | int res; | |
1118 | ||
1119 | res = (*the_target->insert_watchpoint) (type, addr, len); | |
1120 | if (res == 0) | |
1121 | write_ok (own_buf); | |
1122 | else if (res == 1) | |
1123 | /* Unsupported. */ | |
1124 | own_buf[0] = '\0'; | |
1125 | else | |
1126 | write_enn (own_buf); | |
1127 | } | |
1128 | break; | |
1129 | } | |
1130 | case 'z': | |
1131 | { | |
1132 | char *lenptr; | |
1133 | char *dataptr; | |
1134 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1135 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1136 | char type = own_buf[1]; | |
1137 | ||
1138 | if (the_target->remove_watchpoint == NULL | |
1139 | || (type < '2' || type > '4')) | |
1140 | { | |
1141 | /* No watchpoint support or not a watchpoint command; | |
1142 | unrecognized either way. */ | |
1143 | own_buf[0] = '\0'; | |
1144 | } | |
1145 | else | |
1146 | { | |
1147 | int res; | |
1148 | ||
1149 | res = (*the_target->remove_watchpoint) (type, addr, len); | |
1150 | if (res == 0) | |
1151 | write_ok (own_buf); | |
1152 | else if (res == 1) | |
1153 | /* Unsupported. */ | |
1154 | own_buf[0] = '\0'; | |
1155 | else | |
1156 | write_enn (own_buf); | |
1157 | } | |
1158 | break; | |
1159 | } | |
c906108c SS |
1160 | case 'k': |
1161 | fprintf (stderr, "Killing inferior\n"); | |
1162 | kill_inferior (); | |
1163 | /* When using the extended protocol, we start up a new | |
c5aa993b | 1164 | debugging session. The traditional protocol will |
c906108c SS |
1165 | exit instead. */ |
1166 | if (extended_protocol) | |
1167 | { | |
1168 | write_ok (own_buf); | |
1169 | fprintf (stderr, "GDBserver restarting\n"); | |
1170 | ||
1171 | /* Wait till we are at 1st instruction in prog. */ | |
1172 | signal = start_inferior (&argv[2], &status); | |
1173 | goto restart; | |
1174 | break; | |
1175 | } | |
1176 | else | |
1177 | { | |
1178 | exit (0); | |
1179 | break; | |
1180 | } | |
1181 | case 'T': | |
a06660f7 DJ |
1182 | { |
1183 | unsigned long gdb_id, thread_id; | |
1184 | ||
1185 | gdb_id = strtoul (&own_buf[1], NULL, 16); | |
1186 | thread_id = gdb_id_to_thread_id (gdb_id); | |
1187 | if (thread_id == 0) | |
1188 | { | |
1189 | write_enn (own_buf); | |
1190 | break; | |
1191 | } | |
1192 | ||
1193 | if (mythread_alive (thread_id)) | |
1194 | write_ok (own_buf); | |
1195 | else | |
1196 | write_enn (own_buf); | |
1197 | } | |
c906108c SS |
1198 | break; |
1199 | case 'R': | |
1200 | /* Restarting the inferior is only supported in the | |
c5aa993b | 1201 | extended protocol. */ |
c906108c SS |
1202 | if (extended_protocol) |
1203 | { | |
1204 | kill_inferior (); | |
1205 | write_ok (own_buf); | |
1206 | fprintf (stderr, "GDBserver restarting\n"); | |
1207 | ||
1208 | /* Wait till we are at 1st instruction in prog. */ | |
1209 | signal = start_inferior (&argv[2], &status); | |
1210 | goto restart; | |
1211 | break; | |
1212 | } | |
1213 | else | |
1214 | { | |
1215 | /* It is a request we don't understand. Respond with an | |
1216 | empty packet so that gdb knows that we don't support this | |
1217 | request. */ | |
1218 | own_buf[0] = '\0'; | |
1219 | break; | |
1220 | } | |
64386c31 DJ |
1221 | case 'v': |
1222 | /* Extended (long) request. */ | |
1223 | handle_v_requests (own_buf, &status, &signal); | |
1224 | break; | |
c906108c SS |
1225 | default: |
1226 | /* It is a request we don't understand. Respond with an | |
c5aa993b JM |
1227 | empty packet so that gdb knows that we don't support this |
1228 | request. */ | |
c906108c SS |
1229 | own_buf[0] = '\0'; |
1230 | break; | |
1231 | } | |
1232 | ||
01f9e8fa DJ |
1233 | if (new_packet_len != -1) |
1234 | putpkt_binary (own_buf, new_packet_len); | |
1235 | else | |
1236 | putpkt (own_buf); | |
c906108c SS |
1237 | |
1238 | if (status == 'W') | |
1239 | fprintf (stderr, | |
3a7fb99b | 1240 | "\nChild exited with status %d\n", signal); |
c906108c | 1241 | if (status == 'X') |
b80864fb DJ |
1242 | fprintf (stderr, "\nChild terminated with signal = 0x%x (%s)\n", |
1243 | target_signal_to_host (signal), | |
1244 | target_signal_to_name (signal)); | |
c906108c SS |
1245 | if (status == 'W' || status == 'X') |
1246 | { | |
1247 | if (extended_protocol) | |
1248 | { | |
1249 | fprintf (stderr, "Killing inferior\n"); | |
1250 | kill_inferior (); | |
1251 | write_ok (own_buf); | |
1252 | fprintf (stderr, "GDBserver restarting\n"); | |
1253 | ||
1254 | /* Wait till we are at 1st instruction in prog. */ | |
1255 | signal = start_inferior (&argv[2], &status); | |
1256 | goto restart; | |
1257 | break; | |
1258 | } | |
1259 | else | |
1260 | { | |
1261 | fprintf (stderr, "GDBserver exiting\n"); | |
1262 | exit (0); | |
1263 | } | |
1264 | } | |
1265 | } | |
1266 | ||
1267 | /* We come here when getpkt fails. | |
1268 | ||
c5aa993b JM |
1269 | For the extended remote protocol we exit (and this is the only |
1270 | way we gracefully exit!). | |
c906108c | 1271 | |
c5aa993b JM |
1272 | For the traditional remote protocol close the connection, |
1273 | and re-open it at the top of the loop. */ | |
c906108c SS |
1274 | if (extended_protocol) |
1275 | { | |
1276 | remote_close (); | |
1277 | exit (0); | |
1278 | } | |
1279 | else | |
1280 | { | |
45b7b345 DJ |
1281 | fprintf (stderr, "Remote side has terminated connection. " |
1282 | "GDBserver will reopen the connection.\n"); | |
c906108c SS |
1283 | remote_close (); |
1284 | } | |
1285 | } | |
1286 | } |