Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Main code for remote server for GDB. |
6f0f660e | 2 | Copyright (C) 1989, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2002, 2003, 2004, |
dd24457d | 3 | 2005, 2006 |
b6ba6518 | 4 | Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
6f0f660e EZ |
20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
c906108c SS |
22 | |
23 | #include "server.h" | |
24 | ||
a9fa9f7d DJ |
25 | #include <unistd.h> |
26 | #include <signal.h> | |
27 | #include <sys/wait.h> | |
28 | ||
a1928bad DJ |
29 | unsigned long cont_thread; |
30 | unsigned long general_thread; | |
31 | unsigned long step_thread; | |
32 | unsigned long thread_from_wait; | |
33 | unsigned long old_thread_from_wait; | |
c906108c | 34 | int extended_protocol; |
0d62e5e8 DJ |
35 | int server_waiting; |
36 | ||
c906108c | 37 | jmp_buf toplevel; |
c906108c | 38 | |
a9fa9f7d DJ |
39 | /* The PID of the originally created or attached inferior. Used to |
40 | send signals to the process when GDB sends us an asynchronous interrupt | |
41 | (user hitting Control-C in the client), and to wait for the child to exit | |
42 | when no longer debugging it. */ | |
43 | ||
a1928bad | 44 | unsigned long signal_pid; |
a9fa9f7d | 45 | |
fc620387 | 46 | static int |
da85418c | 47 | start_inferior (char *argv[], char *statusptr) |
c906108c | 48 | { |
a9fa9f7d DJ |
49 | signal (SIGTTOU, SIG_DFL); |
50 | signal (SIGTTIN, SIG_DFL); | |
51 | ||
52 | signal_pid = create_inferior (argv[0], argv); | |
0d62e5e8 | 53 | |
a1928bad | 54 | fprintf (stderr, "Process %s created; pid = %ld\n", argv[0], |
a9fa9f7d DJ |
55 | signal_pid); |
56 | ||
57 | signal (SIGTTOU, SIG_IGN); | |
58 | signal (SIGTTIN, SIG_IGN); | |
59 | tcsetpgrp (fileno (stderr), signal_pid); | |
c906108c SS |
60 | |
61 | /* Wait till we are at 1st instruction in program, return signal number. */ | |
0d62e5e8 | 62 | return mywait (statusptr, 0); |
c906108c SS |
63 | } |
64 | ||
45b7b345 | 65 | static int |
fc620387 | 66 | attach_inferior (int pid, char *statusptr, int *sigptr) |
45b7b345 DJ |
67 | { |
68 | /* myattach should return -1 if attaching is unsupported, | |
69 | 0 if it succeeded, and call error() otherwise. */ | |
a9fa9f7d | 70 | |
45b7b345 DJ |
71 | if (myattach (pid) != 0) |
72 | return -1; | |
73 | ||
6910d122 DJ |
74 | fprintf (stderr, "Attached; pid = %d\n", pid); |
75 | ||
a9fa9f7d DJ |
76 | /* FIXME - It may be that we should get the SIGNAL_PID from the |
77 | attach function, so that it can be the main thread instead of | |
78 | whichever we were told to attach to. */ | |
79 | signal_pid = pid; | |
80 | ||
0d62e5e8 | 81 | *sigptr = mywait (statusptr, 0); |
45b7b345 DJ |
82 | |
83 | return 0; | |
84 | } | |
85 | ||
c906108c | 86 | extern int remote_debug; |
ce3a066d DJ |
87 | |
88 | /* Handle all of the extended 'q' packets. */ | |
89 | void | |
90 | handle_query (char *own_buf) | |
91 | { | |
0d62e5e8 DJ |
92 | static struct inferior_list_entry *thread_ptr; |
93 | ||
ce3a066d DJ |
94 | if (strcmp ("qSymbol::", own_buf) == 0) |
95 | { | |
2f2893d9 DJ |
96 | if (the_target->look_up_symbols != NULL) |
97 | (*the_target->look_up_symbols) (); | |
98 | ||
ce3a066d DJ |
99 | strcpy (own_buf, "OK"); |
100 | return; | |
101 | } | |
102 | ||
0d62e5e8 DJ |
103 | if (strcmp ("qfThreadInfo", own_buf) == 0) |
104 | { | |
105 | thread_ptr = all_threads.head; | |
a06660f7 | 106 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
0d62e5e8 DJ |
107 | thread_ptr = thread_ptr->next; |
108 | return; | |
109 | } | |
aa691b87 | 110 | |
0d62e5e8 DJ |
111 | if (strcmp ("qsThreadInfo", own_buf) == 0) |
112 | { | |
113 | if (thread_ptr != NULL) | |
114 | { | |
a06660f7 | 115 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
0d62e5e8 DJ |
116 | thread_ptr = thread_ptr->next; |
117 | return; | |
118 | } | |
119 | else | |
120 | { | |
121 | sprintf (own_buf, "l"); | |
122 | return; | |
123 | } | |
124 | } | |
aa691b87 RM |
125 | |
126 | if (the_target->read_auxv != NULL | |
127 | && strncmp ("qPart:auxv:read::", own_buf, 17) == 0) | |
128 | { | |
f450004a | 129 | unsigned char data[(PBUFSIZ - 1) / 2]; |
aa691b87 RM |
130 | CORE_ADDR ofs; |
131 | unsigned int len; | |
132 | int n; | |
133 | decode_m_packet (&own_buf[17], &ofs, &len); /* "OFS,LEN" */ | |
134 | if (len > sizeof data) | |
135 | len = sizeof data; | |
136 | n = (*the_target->read_auxv) (ofs, data, len); | |
137 | if (n == 0) | |
138 | write_ok (own_buf); | |
139 | else if (n < 0) | |
140 | write_enn (own_buf); | |
141 | else | |
142 | convert_int_to_ascii (data, own_buf, n); | |
143 | return; | |
144 | } | |
145 | ||
ce3a066d DJ |
146 | /* Otherwise we didn't know what packet it was. Say we didn't |
147 | understand it. */ | |
148 | own_buf[0] = 0; | |
149 | } | |
150 | ||
64386c31 DJ |
151 | /* Parse vCont packets. */ |
152 | void | |
fc620387 | 153 | handle_v_cont (char *own_buf, char *status, int *signal) |
64386c31 DJ |
154 | { |
155 | char *p, *q; | |
156 | int n = 0, i = 0; | |
157 | struct thread_resume *resume_info, default_action; | |
158 | ||
159 | /* Count the number of semicolons in the packet. There should be one | |
160 | for every action. */ | |
161 | p = &own_buf[5]; | |
162 | while (p) | |
163 | { | |
164 | n++; | |
165 | p++; | |
166 | p = strchr (p, ';'); | |
167 | } | |
168 | /* Allocate room for one extra action, for the default remain-stopped | |
169 | behavior; if no default action is in the list, we'll need the extra | |
170 | slot. */ | |
171 | resume_info = malloc ((n + 1) * sizeof (resume_info[0])); | |
172 | ||
173 | default_action.thread = -1; | |
174 | default_action.leave_stopped = 1; | |
175 | default_action.step = 0; | |
176 | default_action.sig = 0; | |
177 | ||
178 | p = &own_buf[5]; | |
179 | i = 0; | |
180 | while (*p) | |
181 | { | |
182 | p++; | |
183 | ||
184 | resume_info[i].leave_stopped = 0; | |
185 | ||
186 | if (p[0] == 's' || p[0] == 'S') | |
187 | resume_info[i].step = 1; | |
188 | else if (p[0] == 'c' || p[0] == 'C') | |
189 | resume_info[i].step = 0; | |
190 | else | |
191 | goto err; | |
192 | ||
193 | if (p[0] == 'S' || p[0] == 'C') | |
194 | { | |
195 | int sig; | |
196 | sig = strtol (p + 1, &q, 16); | |
197 | if (p == q) | |
198 | goto err; | |
199 | p = q; | |
200 | ||
201 | if (!target_signal_to_host_p (sig)) | |
202 | goto err; | |
203 | resume_info[i].sig = target_signal_to_host (sig); | |
204 | } | |
205 | else | |
206 | { | |
207 | resume_info[i].sig = 0; | |
208 | p = p + 1; | |
209 | } | |
210 | ||
211 | if (p[0] == 0) | |
212 | { | |
213 | resume_info[i].thread = -1; | |
214 | default_action = resume_info[i]; | |
215 | ||
216 | /* Note: we don't increment i here, we'll overwrite this entry | |
217 | the next time through. */ | |
218 | } | |
219 | else if (p[0] == ':') | |
220 | { | |
a06660f7 DJ |
221 | unsigned int gdb_id = strtoul (p + 1, &q, 16); |
222 | unsigned long thread_id; | |
223 | ||
64386c31 DJ |
224 | if (p == q) |
225 | goto err; | |
226 | p = q; | |
227 | if (p[0] != ';' && p[0] != 0) | |
228 | goto err; | |
229 | ||
a06660f7 DJ |
230 | thread_id = gdb_id_to_thread_id (gdb_id); |
231 | if (thread_id) | |
232 | resume_info[i].thread = thread_id; | |
233 | else | |
234 | goto err; | |
235 | ||
64386c31 DJ |
236 | i++; |
237 | } | |
238 | } | |
239 | ||
240 | resume_info[i] = default_action; | |
241 | ||
242 | /* Still used in occasional places in the backend. */ | |
243 | if (n == 1 && resume_info[0].thread != -1) | |
244 | cont_thread = resume_info[0].thread; | |
245 | else | |
246 | cont_thread = -1; | |
dc3f8883 | 247 | set_desired_inferior (0); |
64386c31 DJ |
248 | |
249 | (*the_target->resume) (resume_info); | |
250 | ||
251 | free (resume_info); | |
252 | ||
253 | *signal = mywait (status, 1); | |
254 | prepare_resume_reply (own_buf, *status, *signal); | |
255 | return; | |
256 | ||
257 | err: | |
258 | /* No other way to report an error... */ | |
259 | strcpy (own_buf, ""); | |
260 | free (resume_info); | |
261 | return; | |
262 | } | |
263 | ||
264 | /* Handle all of the extended 'v' packets. */ | |
265 | void | |
fc620387 | 266 | handle_v_requests (char *own_buf, char *status, int *signal) |
64386c31 DJ |
267 | { |
268 | if (strncmp (own_buf, "vCont;", 6) == 0) | |
269 | { | |
270 | handle_v_cont (own_buf, status, signal); | |
271 | return; | |
272 | } | |
273 | ||
274 | if (strncmp (own_buf, "vCont?", 6) == 0) | |
275 | { | |
276 | strcpy (own_buf, "vCont;c;C;s;S"); | |
277 | return; | |
278 | } | |
279 | ||
280 | /* Otherwise we didn't know what packet it was. Say we didn't | |
281 | understand it. */ | |
282 | own_buf[0] = 0; | |
283 | return; | |
284 | } | |
285 | ||
286 | void | |
287 | myresume (int step, int sig) | |
288 | { | |
289 | struct thread_resume resume_info[2]; | |
290 | int n = 0; | |
291 | ||
d592fa2f | 292 | if (step || sig || (cont_thread != 0 && cont_thread != -1)) |
64386c31 DJ |
293 | { |
294 | resume_info[0].thread | |
295 | = ((struct inferior_list_entry *) current_inferior)->id; | |
296 | resume_info[0].step = step; | |
297 | resume_info[0].sig = sig; | |
298 | resume_info[0].leave_stopped = 0; | |
299 | n++; | |
300 | } | |
301 | resume_info[n].thread = -1; | |
302 | resume_info[n].step = 0; | |
303 | resume_info[n].sig = 0; | |
d592fa2f | 304 | resume_info[n].leave_stopped = (cont_thread != 0 && cont_thread != -1); |
64386c31 DJ |
305 | |
306 | (*the_target->resume) (resume_info); | |
307 | } | |
308 | ||
0729219d | 309 | static int attached; |
c906108c | 310 | |
dd24457d DJ |
311 | static void |
312 | gdbserver_version (void) | |
313 | { | |
314 | printf ("GNU gdbserver %s\n" | |
315 | "Copyright (C) 2006 Free Software Foundation, Inc.\n" | |
316 | "gdbserver is free software, covered by the GNU General Public License.\n" | |
317 | "This gdbserver was configured as \"%s\"\n", | |
318 | version, host_name); | |
319 | } | |
320 | ||
0bc68c49 DJ |
321 | static void |
322 | gdbserver_usage (void) | |
323 | { | |
dd24457d DJ |
324 | printf ("Usage:\tgdbserver COMM PROG [ARGS ...]\n" |
325 | "\tgdbserver COMM --attach PID\n" | |
326 | "\n" | |
327 | "COMM may either be a tty device (for serial debugging), or \n" | |
328 | "HOST:PORT to listen for a TCP connection.\n"); | |
0bc68c49 DJ |
329 | } |
330 | ||
c906108c | 331 | int |
da85418c | 332 | main (int argc, char *argv[]) |
c906108c | 333 | { |
f450004a | 334 | char ch, status, *own_buf; |
7fb85e41 | 335 | unsigned char *mem_buf; |
c906108c | 336 | int i = 0; |
fc620387 | 337 | int signal; |
c906108c SS |
338 | unsigned int len; |
339 | CORE_ADDR mem_addr; | |
0729219d DJ |
340 | int bad_attach; |
341 | int pid; | |
45b7b345 | 342 | char *arg_end; |
c906108c | 343 | |
dd24457d DJ |
344 | if (argc >= 2 && strcmp (argv[1], "--version") == 0) |
345 | { | |
346 | gdbserver_version (); | |
347 | exit (0); | |
348 | } | |
349 | ||
350 | if (argc >= 2 && strcmp (argv[1], "--help") == 0) | |
351 | { | |
352 | gdbserver_usage (); | |
353 | exit (0); | |
354 | } | |
355 | ||
c5aa993b | 356 | if (setjmp (toplevel)) |
c906108c | 357 | { |
c5aa993b JM |
358 | fprintf (stderr, "Exiting\n"); |
359 | exit (1); | |
c906108c SS |
360 | } |
361 | ||
0729219d DJ |
362 | bad_attach = 0; |
363 | pid = 0; | |
364 | attached = 0; | |
45b7b345 DJ |
365 | if (argc >= 3 && strcmp (argv[2], "--attach") == 0) |
366 | { | |
367 | if (argc == 4 | |
368 | && argv[3] != '\0' | |
369 | && (pid = strtoul (argv[3], &arg_end, 10)) != 0 | |
370 | && *arg_end == '\0') | |
371 | { | |
372 | ; | |
373 | } | |
374 | else | |
375 | bad_attach = 1; | |
376 | } | |
377 | ||
378 | if (argc < 3 || bad_attach) | |
dd24457d DJ |
379 | { |
380 | gdbserver_usage (); | |
381 | exit (1); | |
382 | } | |
c906108c | 383 | |
4ce44c66 JM |
384 | initialize_low (); |
385 | ||
0a30fbc4 | 386 | own_buf = malloc (PBUFSIZ); |
7fb85e41 | 387 | mem_buf = malloc (PBUFSIZ); |
0a30fbc4 | 388 | |
45b7b345 DJ |
389 | if (pid == 0) |
390 | { | |
391 | /* Wait till we are at first instruction in program. */ | |
392 | signal = start_inferior (&argv[2], &status); | |
c906108c | 393 | |
45b7b345 DJ |
394 | /* We are now stopped at the first instruction of the target process */ |
395 | } | |
396 | else | |
397 | { | |
398 | switch (attach_inferior (pid, &status, &signal)) | |
399 | { | |
400 | case -1: | |
401 | error ("Attaching not supported on this target"); | |
402 | break; | |
403 | default: | |
404 | attached = 1; | |
405 | break; | |
406 | } | |
407 | } | |
c906108c SS |
408 | |
409 | while (1) | |
410 | { | |
411 | remote_open (argv[1]); | |
412 | ||
c5aa993b JM |
413 | restart: |
414 | setjmp (toplevel); | |
c906108c SS |
415 | while (getpkt (own_buf) > 0) |
416 | { | |
417 | unsigned char sig; | |
418 | i = 0; | |
419 | ch = own_buf[i++]; | |
420 | switch (ch) | |
421 | { | |
ce3a066d DJ |
422 | case 'q': |
423 | handle_query (own_buf); | |
424 | break; | |
c906108c SS |
425 | case 'd': |
426 | remote_debug = !remote_debug; | |
427 | break; | |
6ad8ae5c DJ |
428 | case 'D': |
429 | fprintf (stderr, "Detaching from inferior\n"); | |
430 | detach_inferior (); | |
431 | write_ok (own_buf); | |
432 | putpkt (own_buf); | |
aa691b87 | 433 | remote_close (); |
6ad8ae5c DJ |
434 | |
435 | /* If we are attached, then we can exit. Otherwise, we need to | |
436 | hang around doing nothing, until the child is gone. */ | |
437 | if (!attached) | |
438 | { | |
439 | int status, ret; | |
440 | ||
441 | do { | |
442 | ret = waitpid (signal_pid, &status, 0); | |
443 | if (WIFEXITED (status) || WIFSIGNALED (status)) | |
444 | break; | |
445 | } while (ret != -1 || errno != ECHILD); | |
446 | } | |
447 | ||
448 | exit (0); | |
449 | ||
c906108c | 450 | case '!': |
45b7b345 DJ |
451 | if (attached == 0) |
452 | { | |
453 | extended_protocol = 1; | |
454 | prepare_resume_reply (own_buf, status, signal); | |
455 | } | |
456 | else | |
457 | { | |
458 | /* We can not use the extended protocol if we are | |
459 | attached, because we can not restart the running | |
460 | program. So return unrecognized. */ | |
461 | own_buf[0] = '\0'; | |
462 | } | |
c906108c SS |
463 | break; |
464 | case '?': | |
465 | prepare_resume_reply (own_buf, status, signal); | |
466 | break; | |
467 | case 'H': | |
a06660f7 | 468 | if (own_buf[1] == 'c' || own_buf[1] == 'g' || own_buf[1] == 's') |
c906108c | 469 | { |
a06660f7 DJ |
470 | unsigned long gdb_id, thread_id; |
471 | ||
472 | gdb_id = strtoul (&own_buf[2], NULL, 16); | |
473 | thread_id = gdb_id_to_thread_id (gdb_id); | |
474 | if (thread_id == 0) | |
475 | { | |
476 | write_enn (own_buf); | |
477 | break; | |
478 | } | |
479 | ||
480 | if (own_buf[1] == 'g') | |
481 | { | |
482 | general_thread = thread_id; | |
483 | set_desired_inferior (1); | |
484 | } | |
485 | else if (own_buf[1] == 'c') | |
486 | cont_thread = thread_id; | |
487 | else if (own_buf[1] == 's') | |
488 | step_thread = thread_id; | |
489 | ||
0d62e5e8 | 490 | write_ok (own_buf); |
a06660f7 DJ |
491 | } |
492 | else | |
493 | { | |
c906108c SS |
494 | /* Silently ignore it so that gdb can extend the protocol |
495 | without compatibility headaches. */ | |
496 | own_buf[0] = '\0'; | |
c906108c SS |
497 | } |
498 | break; | |
499 | case 'g': | |
0d62e5e8 | 500 | set_desired_inferior (1); |
0a30fbc4 | 501 | registers_to_string (own_buf); |
c906108c SS |
502 | break; |
503 | case 'G': | |
0d62e5e8 | 504 | set_desired_inferior (1); |
0a30fbc4 | 505 | registers_from_string (&own_buf[1]); |
c906108c SS |
506 | write_ok (own_buf); |
507 | break; | |
508 | case 'm': | |
509 | decode_m_packet (&own_buf[1], &mem_addr, &len); | |
c3e735a6 DJ |
510 | if (read_inferior_memory (mem_addr, mem_buf, len) == 0) |
511 | convert_int_to_ascii (mem_buf, own_buf, len); | |
512 | else | |
513 | write_enn (own_buf); | |
c906108c SS |
514 | break; |
515 | case 'M': | |
516 | decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf); | |
517 | if (write_inferior_memory (mem_addr, mem_buf, len) == 0) | |
518 | write_ok (own_buf); | |
519 | else | |
520 | write_enn (own_buf); | |
521 | break; | |
522 | case 'C': | |
523 | convert_ascii_to_int (own_buf + 1, &sig, 1); | |
0e98d0a7 DJ |
524 | if (target_signal_to_host_p (sig)) |
525 | signal = target_signal_to_host (sig); | |
526 | else | |
527 | signal = 0; | |
0d62e5e8 | 528 | set_desired_inferior (0); |
0e98d0a7 | 529 | myresume (0, signal); |
0d62e5e8 | 530 | signal = mywait (&status, 1); |
c906108c SS |
531 | prepare_resume_reply (own_buf, status, signal); |
532 | break; | |
533 | case 'S': | |
534 | convert_ascii_to_int (own_buf + 1, &sig, 1); | |
0e98d0a7 DJ |
535 | if (target_signal_to_host_p (sig)) |
536 | signal = target_signal_to_host (sig); | |
537 | else | |
538 | signal = 0; | |
0d62e5e8 | 539 | set_desired_inferior (0); |
0e98d0a7 | 540 | myresume (1, signal); |
0d62e5e8 | 541 | signal = mywait (&status, 1); |
c906108c SS |
542 | prepare_resume_reply (own_buf, status, signal); |
543 | break; | |
544 | case 'c': | |
0d62e5e8 | 545 | set_desired_inferior (0); |
c906108c | 546 | myresume (0, 0); |
0d62e5e8 | 547 | signal = mywait (&status, 1); |
c906108c SS |
548 | prepare_resume_reply (own_buf, status, signal); |
549 | break; | |
550 | case 's': | |
0d62e5e8 | 551 | set_desired_inferior (0); |
c906108c | 552 | myresume (1, 0); |
0d62e5e8 | 553 | signal = mywait (&status, 1); |
c906108c SS |
554 | prepare_resume_reply (own_buf, status, signal); |
555 | break; | |
e013ee27 OF |
556 | case 'Z': |
557 | { | |
558 | char *lenptr; | |
559 | char *dataptr; | |
560 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
561 | int len = strtol (lenptr + 1, &dataptr, 16); | |
562 | char type = own_buf[1]; | |
563 | ||
564 | if (the_target->insert_watchpoint == NULL | |
565 | || (type < '2' || type > '4')) | |
566 | { | |
567 | /* No watchpoint support or not a watchpoint command; | |
568 | unrecognized either way. */ | |
569 | own_buf[0] = '\0'; | |
570 | } | |
571 | else | |
572 | { | |
573 | int res; | |
574 | ||
575 | res = (*the_target->insert_watchpoint) (type, addr, len); | |
576 | if (res == 0) | |
577 | write_ok (own_buf); | |
578 | else if (res == 1) | |
579 | /* Unsupported. */ | |
580 | own_buf[0] = '\0'; | |
581 | else | |
582 | write_enn (own_buf); | |
583 | } | |
584 | break; | |
585 | } | |
586 | case 'z': | |
587 | { | |
588 | char *lenptr; | |
589 | char *dataptr; | |
590 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
591 | int len = strtol (lenptr + 1, &dataptr, 16); | |
592 | char type = own_buf[1]; | |
593 | ||
594 | if (the_target->remove_watchpoint == NULL | |
595 | || (type < '2' || type > '4')) | |
596 | { | |
597 | /* No watchpoint support or not a watchpoint command; | |
598 | unrecognized either way. */ | |
599 | own_buf[0] = '\0'; | |
600 | } | |
601 | else | |
602 | { | |
603 | int res; | |
604 | ||
605 | res = (*the_target->remove_watchpoint) (type, addr, len); | |
606 | if (res == 0) | |
607 | write_ok (own_buf); | |
608 | else if (res == 1) | |
609 | /* Unsupported. */ | |
610 | own_buf[0] = '\0'; | |
611 | else | |
612 | write_enn (own_buf); | |
613 | } | |
614 | break; | |
615 | } | |
c906108c SS |
616 | case 'k': |
617 | fprintf (stderr, "Killing inferior\n"); | |
618 | kill_inferior (); | |
619 | /* When using the extended protocol, we start up a new | |
c5aa993b | 620 | debugging session. The traditional protocol will |
c906108c SS |
621 | exit instead. */ |
622 | if (extended_protocol) | |
623 | { | |
624 | write_ok (own_buf); | |
625 | fprintf (stderr, "GDBserver restarting\n"); | |
626 | ||
627 | /* Wait till we are at 1st instruction in prog. */ | |
628 | signal = start_inferior (&argv[2], &status); | |
629 | goto restart; | |
630 | break; | |
631 | } | |
632 | else | |
633 | { | |
634 | exit (0); | |
635 | break; | |
636 | } | |
637 | case 'T': | |
a06660f7 DJ |
638 | { |
639 | unsigned long gdb_id, thread_id; | |
640 | ||
641 | gdb_id = strtoul (&own_buf[1], NULL, 16); | |
642 | thread_id = gdb_id_to_thread_id (gdb_id); | |
643 | if (thread_id == 0) | |
644 | { | |
645 | write_enn (own_buf); | |
646 | break; | |
647 | } | |
648 | ||
649 | if (mythread_alive (thread_id)) | |
650 | write_ok (own_buf); | |
651 | else | |
652 | write_enn (own_buf); | |
653 | } | |
c906108c SS |
654 | break; |
655 | case 'R': | |
656 | /* Restarting the inferior is only supported in the | |
c5aa993b | 657 | extended protocol. */ |
c906108c SS |
658 | if (extended_protocol) |
659 | { | |
660 | kill_inferior (); | |
661 | write_ok (own_buf); | |
662 | fprintf (stderr, "GDBserver restarting\n"); | |
663 | ||
664 | /* Wait till we are at 1st instruction in prog. */ | |
665 | signal = start_inferior (&argv[2], &status); | |
666 | goto restart; | |
667 | break; | |
668 | } | |
669 | else | |
670 | { | |
671 | /* It is a request we don't understand. Respond with an | |
672 | empty packet so that gdb knows that we don't support this | |
673 | request. */ | |
674 | own_buf[0] = '\0'; | |
675 | break; | |
676 | } | |
64386c31 DJ |
677 | case 'v': |
678 | /* Extended (long) request. */ | |
679 | handle_v_requests (own_buf, &status, &signal); | |
680 | break; | |
c906108c SS |
681 | default: |
682 | /* It is a request we don't understand. Respond with an | |
c5aa993b JM |
683 | empty packet so that gdb knows that we don't support this |
684 | request. */ | |
c906108c SS |
685 | own_buf[0] = '\0'; |
686 | break; | |
687 | } | |
688 | ||
689 | putpkt (own_buf); | |
690 | ||
691 | if (status == 'W') | |
692 | fprintf (stderr, | |
3a7fb99b | 693 | "\nChild exited with status %d\n", signal); |
c906108c | 694 | if (status == 'X') |
3a7fb99b DJ |
695 | fprintf (stderr, "\nChild terminated with signal = 0x%x\n", |
696 | signal); | |
c906108c SS |
697 | if (status == 'W' || status == 'X') |
698 | { | |
699 | if (extended_protocol) | |
700 | { | |
701 | fprintf (stderr, "Killing inferior\n"); | |
702 | kill_inferior (); | |
703 | write_ok (own_buf); | |
704 | fprintf (stderr, "GDBserver restarting\n"); | |
705 | ||
706 | /* Wait till we are at 1st instruction in prog. */ | |
707 | signal = start_inferior (&argv[2], &status); | |
708 | goto restart; | |
709 | break; | |
710 | } | |
711 | else | |
712 | { | |
713 | fprintf (stderr, "GDBserver exiting\n"); | |
714 | exit (0); | |
715 | } | |
716 | } | |
717 | } | |
718 | ||
719 | /* We come here when getpkt fails. | |
720 | ||
c5aa993b JM |
721 | For the extended remote protocol we exit (and this is the only |
722 | way we gracefully exit!). | |
c906108c | 723 | |
c5aa993b JM |
724 | For the traditional remote protocol close the connection, |
725 | and re-open it at the top of the loop. */ | |
c906108c SS |
726 | if (extended_protocol) |
727 | { | |
728 | remote_close (); | |
729 | exit (0); | |
730 | } | |
731 | else | |
732 | { | |
45b7b345 DJ |
733 | fprintf (stderr, "Remote side has terminated connection. " |
734 | "GDBserver will reopen the connection.\n"); | |
c906108c SS |
735 | remote_close (); |
736 | } | |
737 | } | |
738 | } |