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Commit | Line | Data |
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c906108c | 1 | /* Main code for remote server for GDB. |
6aba47ca | 2 | Copyright (C) 1989, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2002, 2003, |
9b254dd1 | 3 | 2004, 2005, 2006, 2007, 2008 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; | |
0d62e5e8 DJ |
37 | int server_waiting; |
38 | ||
2d717e4f DJ |
39 | static int extended_protocol; |
40 | static int attached; | |
41 | static int response_needed; | |
42 | static int exit_requested; | |
43 | ||
44 | static char **program_argv; | |
45 | ||
c74d0ad8 DJ |
46 | /* Enable miscellaneous debugging output. The name is historical - it |
47 | was originally used to debug LinuxThreads support. */ | |
48 | int debug_threads; | |
49 | ||
89be2091 DJ |
50 | int pass_signals[TARGET_SIGNAL_LAST]; |
51 | ||
c906108c | 52 | jmp_buf toplevel; |
c906108c | 53 | |
a9fa9f7d DJ |
54 | /* The PID of the originally created or attached inferior. Used to |
55 | send signals to the process when GDB sends us an asynchronous interrupt | |
56 | (user hitting Control-C in the client), and to wait for the child to exit | |
57 | when no longer debugging it. */ | |
58 | ||
a1928bad | 59 | unsigned long signal_pid; |
a9fa9f7d | 60 | |
290fadea RS |
61 | #ifdef SIGTTOU |
62 | /* A file descriptor for the controlling terminal. */ | |
63 | int terminal_fd; | |
64 | ||
65 | /* TERMINAL_FD's original foreground group. */ | |
66 | pid_t old_foreground_pgrp; | |
67 | ||
68 | /* Hand back terminal ownership to the original foreground group. */ | |
69 | ||
70 | static void | |
71 | restore_old_foreground_pgrp (void) | |
72 | { | |
73 | tcsetpgrp (terminal_fd, old_foreground_pgrp); | |
74 | } | |
75 | #endif | |
76 | ||
2d717e4f DJ |
77 | static int |
78 | target_running (void) | |
79 | { | |
80 | return all_threads.head != NULL; | |
81 | } | |
82 | ||
fc620387 | 83 | static int |
da85418c | 84 | start_inferior (char *argv[], char *statusptr) |
c906108c | 85 | { |
2d717e4f DJ |
86 | attached = 0; |
87 | ||
b80864fb | 88 | #ifdef SIGTTOU |
a9fa9f7d DJ |
89 | signal (SIGTTOU, SIG_DFL); |
90 | signal (SIGTTIN, SIG_DFL); | |
b80864fb | 91 | #endif |
a9fa9f7d DJ |
92 | |
93 | signal_pid = create_inferior (argv[0], argv); | |
0d62e5e8 | 94 | |
c588c53c MS |
95 | /* FIXME: we don't actually know at this point that the create |
96 | actually succeeded. We won't know that until we wait. */ | |
a1928bad | 97 | fprintf (stderr, "Process %s created; pid = %ld\n", argv[0], |
a9fa9f7d | 98 | signal_pid); |
b80864fb | 99 | fflush (stderr); |
a9fa9f7d | 100 | |
b80864fb | 101 | #ifdef SIGTTOU |
a9fa9f7d DJ |
102 | signal (SIGTTOU, SIG_IGN); |
103 | signal (SIGTTIN, SIG_IGN); | |
290fadea RS |
104 | terminal_fd = fileno (stderr); |
105 | old_foreground_pgrp = tcgetpgrp (terminal_fd); | |
106 | tcsetpgrp (terminal_fd, signal_pid); | |
107 | atexit (restore_old_foreground_pgrp); | |
b80864fb | 108 | #endif |
c906108c | 109 | |
c588c53c MS |
110 | /* Wait till we are at 1st instruction in program, return signal |
111 | number (assuming success). */ | |
0d62e5e8 | 112 | return mywait (statusptr, 0); |
c906108c SS |
113 | } |
114 | ||
45b7b345 | 115 | static int |
fc620387 | 116 | attach_inferior (int pid, char *statusptr, int *sigptr) |
45b7b345 DJ |
117 | { |
118 | /* myattach should return -1 if attaching is unsupported, | |
119 | 0 if it succeeded, and call error() otherwise. */ | |
a9fa9f7d | 120 | |
45b7b345 DJ |
121 | if (myattach (pid) != 0) |
122 | return -1; | |
123 | ||
2d717e4f DJ |
124 | attached = 1; |
125 | ||
6910d122 | 126 | fprintf (stderr, "Attached; pid = %d\n", pid); |
b80864fb | 127 | fflush (stderr); |
6910d122 | 128 | |
a9fa9f7d DJ |
129 | /* FIXME - It may be that we should get the SIGNAL_PID from the |
130 | attach function, so that it can be the main thread instead of | |
131 | whichever we were told to attach to. */ | |
132 | signal_pid = pid; | |
133 | ||
0d62e5e8 | 134 | *sigptr = mywait (statusptr, 0); |
45b7b345 | 135 | |
9db87ebd DJ |
136 | /* GDB knows to ignore the first SIGSTOP after attaching to a running |
137 | process using the "attach" command, but this is different; it's | |
138 | just using "target remote". Pretend it's just starting up. */ | |
b80864fb DJ |
139 | if (*statusptr == 'T' && *sigptr == TARGET_SIGNAL_STOP) |
140 | *sigptr = TARGET_SIGNAL_TRAP; | |
9db87ebd | 141 | |
45b7b345 DJ |
142 | return 0; |
143 | } | |
144 | ||
c906108c | 145 | extern int remote_debug; |
ce3a066d | 146 | |
0876f84a DJ |
147 | /* Decode a qXfer read request. Return 0 if everything looks OK, |
148 | or -1 otherwise. */ | |
149 | ||
150 | static int | |
151 | decode_xfer_read (char *buf, char **annex, CORE_ADDR *ofs, unsigned int *len) | |
152 | { | |
153 | /* Extract and NUL-terminate the annex. */ | |
154 | *annex = buf; | |
155 | while (*buf && *buf != ':') | |
156 | buf++; | |
157 | if (*buf == '\0') | |
158 | return -1; | |
159 | *buf++ = 0; | |
160 | ||
0e7f50da | 161 | /* After the read marker and annex, qXfer looks like a |
0876f84a DJ |
162 | traditional 'm' packet. */ |
163 | decode_m_packet (buf, ofs, len); | |
164 | ||
165 | return 0; | |
166 | } | |
167 | ||
168 | /* Write the response to a successful qXfer read. Returns the | |
169 | length of the (binary) data stored in BUF, corresponding | |
170 | to as much of DATA/LEN as we could fit. IS_MORE controls | |
171 | the first character of the response. */ | |
172 | static int | |
23181151 | 173 | write_qxfer_response (char *buf, const void *data, int len, int is_more) |
0876f84a DJ |
174 | { |
175 | int out_len; | |
176 | ||
177 | if (is_more) | |
178 | buf[0] = 'm'; | |
179 | else | |
180 | buf[0] = 'l'; | |
181 | ||
182 | return remote_escape_output (data, len, (unsigned char *) buf + 1, &out_len, | |
183 | PBUFSIZ - 2) + 1; | |
184 | } | |
185 | ||
89be2091 DJ |
186 | /* Handle all of the extended 'Q' packets. */ |
187 | void | |
188 | handle_general_set (char *own_buf) | |
189 | { | |
190 | if (strncmp ("QPassSignals:", own_buf, strlen ("QPassSignals:")) == 0) | |
191 | { | |
192 | int numsigs = (int) TARGET_SIGNAL_LAST, i; | |
193 | const char *p = own_buf + strlen ("QPassSignals:"); | |
194 | CORE_ADDR cursig; | |
195 | ||
196 | p = decode_address_to_semicolon (&cursig, p); | |
197 | for (i = 0; i < numsigs; i++) | |
198 | { | |
199 | if (i == cursig) | |
200 | { | |
201 | pass_signals[i] = 1; | |
202 | if (*p == '\0') | |
203 | /* Keep looping, to clear the remaining signals. */ | |
204 | cursig = -1; | |
205 | else | |
206 | p = decode_address_to_semicolon (&cursig, p); | |
207 | } | |
208 | else | |
209 | pass_signals[i] = 0; | |
210 | } | |
211 | strcpy (own_buf, "OK"); | |
212 | return; | |
213 | } | |
214 | ||
215 | /* Otherwise we didn't know what packet it was. Say we didn't | |
216 | understand it. */ | |
217 | own_buf[0] = 0; | |
218 | } | |
219 | ||
23181151 | 220 | static const char * |
fb1e4ffc | 221 | get_features_xml (const char *annex) |
23181151 DJ |
222 | { |
223 | static int features_supported = -1; | |
224 | static char *document; | |
225 | ||
fb1e4ffc DJ |
226 | #ifdef USE_XML |
227 | extern const char *const xml_builtin[][2]; | |
228 | int i; | |
229 | ||
230 | /* Look for the annex. */ | |
231 | for (i = 0; xml_builtin[i][0] != NULL; i++) | |
232 | if (strcmp (annex, xml_builtin[i][0]) == 0) | |
233 | break; | |
234 | ||
235 | if (xml_builtin[i][0] != NULL) | |
236 | return xml_builtin[i][1]; | |
237 | #endif | |
238 | ||
239 | if (strcmp (annex, "target.xml") != 0) | |
240 | return NULL; | |
241 | ||
23181151 DJ |
242 | if (features_supported == -1) |
243 | { | |
820f2bda PA |
244 | const char *arch = NULL; |
245 | if (the_target->arch_string != NULL) | |
246 | arch = (*the_target->arch_string) (); | |
23181151 DJ |
247 | |
248 | if (arch == NULL) | |
249 | features_supported = 0; | |
250 | else | |
251 | { | |
252 | features_supported = 1; | |
253 | document = malloc (64 + strlen (arch)); | |
254 | snprintf (document, 64 + strlen (arch), | |
255 | "<target><architecture>%s</architecture></target>", | |
256 | arch); | |
257 | } | |
258 | } | |
259 | ||
260 | return document; | |
261 | } | |
262 | ||
c74d0ad8 DJ |
263 | void |
264 | monitor_show_help (void) | |
265 | { | |
266 | monitor_output ("The following monitor commands are supported:\n"); | |
267 | monitor_output (" set debug <0|1>\n"); | |
268 | monitor_output (" Enable general debugging messages\n"); | |
269 | monitor_output (" set remote-debug <0|1>\n"); | |
270 | monitor_output (" Enable remote protocol debugging messages\n"); | |
271 | } | |
272 | ||
2d717e4f DJ |
273 | #define require_running(BUF) \ |
274 | if (!target_running ()) \ | |
275 | { \ | |
276 | write_enn (BUF); \ | |
277 | return; \ | |
278 | } | |
279 | ||
ce3a066d DJ |
280 | /* Handle all of the extended 'q' packets. */ |
281 | void | |
0e7f50da | 282 | handle_query (char *own_buf, int packet_len, int *new_packet_len_p) |
ce3a066d | 283 | { |
0d62e5e8 DJ |
284 | static struct inferior_list_entry *thread_ptr; |
285 | ||
bb63802a UW |
286 | /* Reply the current thread id. */ |
287 | if (strcmp ("qC", own_buf) == 0) | |
288 | { | |
2d717e4f | 289 | require_running (own_buf); |
bb63802a UW |
290 | thread_ptr = all_threads.head; |
291 | sprintf (own_buf, "QC%x", | |
292 | thread_to_gdb_id ((struct thread_info *)thread_ptr)); | |
293 | return; | |
294 | } | |
295 | ||
ce3a066d DJ |
296 | if (strcmp ("qSymbol::", own_buf) == 0) |
297 | { | |
2d717e4f | 298 | if (target_running () && the_target->look_up_symbols != NULL) |
2f2893d9 DJ |
299 | (*the_target->look_up_symbols) (); |
300 | ||
ce3a066d DJ |
301 | strcpy (own_buf, "OK"); |
302 | return; | |
303 | } | |
304 | ||
0d62e5e8 DJ |
305 | if (strcmp ("qfThreadInfo", own_buf) == 0) |
306 | { | |
2d717e4f | 307 | require_running (own_buf); |
0d62e5e8 | 308 | thread_ptr = all_threads.head; |
a06660f7 | 309 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
0d62e5e8 DJ |
310 | thread_ptr = thread_ptr->next; |
311 | return; | |
312 | } | |
aa691b87 | 313 | |
0d62e5e8 DJ |
314 | if (strcmp ("qsThreadInfo", own_buf) == 0) |
315 | { | |
2d717e4f | 316 | require_running (own_buf); |
0d62e5e8 DJ |
317 | if (thread_ptr != NULL) |
318 | { | |
a06660f7 | 319 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
0d62e5e8 DJ |
320 | thread_ptr = thread_ptr->next; |
321 | return; | |
322 | } | |
323 | else | |
324 | { | |
325 | sprintf (own_buf, "l"); | |
326 | return; | |
327 | } | |
328 | } | |
aa691b87 | 329 | |
52fb6437 NS |
330 | if (the_target->read_offsets != NULL |
331 | && strcmp ("qOffsets", own_buf) == 0) | |
332 | { | |
333 | CORE_ADDR text, data; | |
2d717e4f DJ |
334 | |
335 | require_running (own_buf); | |
52fb6437 NS |
336 | if (the_target->read_offsets (&text, &data)) |
337 | sprintf (own_buf, "Text=%lX;Data=%lX;Bss=%lX", | |
338 | (long)text, (long)data, (long)data); | |
339 | else | |
340 | write_enn (own_buf); | |
341 | ||
342 | return; | |
343 | } | |
344 | ||
0e7f50da UW |
345 | if (the_target->qxfer_spu != NULL |
346 | && strncmp ("qXfer:spu:read:", own_buf, 15) == 0) | |
347 | { | |
348 | char *annex; | |
349 | int n; | |
350 | unsigned int len; | |
351 | CORE_ADDR ofs; | |
352 | unsigned char *spu_buf; | |
353 | ||
2d717e4f | 354 | require_running (own_buf); |
0e7f50da UW |
355 | strcpy (own_buf, "E00"); |
356 | if (decode_xfer_read (own_buf + 15, &annex, &ofs, &len) < 0) | |
357 | return; | |
358 | if (len > PBUFSIZ - 2) | |
359 | len = PBUFSIZ - 2; | |
360 | spu_buf = malloc (len + 1); | |
361 | if (!spu_buf) | |
362 | return; | |
363 | ||
364 | n = (*the_target->qxfer_spu) (annex, spu_buf, NULL, ofs, len + 1); | |
365 | if (n < 0) | |
366 | write_enn (own_buf); | |
367 | else if (n > len) | |
368 | *new_packet_len_p = write_qxfer_response | |
369 | (own_buf, spu_buf, len, 1); | |
370 | else | |
371 | *new_packet_len_p = write_qxfer_response | |
372 | (own_buf, spu_buf, n, 0); | |
373 | ||
374 | free (spu_buf); | |
375 | return; | |
376 | } | |
377 | ||
378 | if (the_target->qxfer_spu != NULL | |
379 | && strncmp ("qXfer:spu:write:", own_buf, 16) == 0) | |
380 | { | |
381 | char *annex; | |
382 | int n; | |
383 | unsigned int len; | |
384 | CORE_ADDR ofs; | |
385 | unsigned char *spu_buf; | |
386 | ||
2d717e4f | 387 | require_running (own_buf); |
0e7f50da UW |
388 | strcpy (own_buf, "E00"); |
389 | spu_buf = malloc (packet_len - 15); | |
390 | if (!spu_buf) | |
391 | return; | |
392 | if (decode_xfer_write (own_buf + 16, packet_len - 16, &annex, | |
393 | &ofs, &len, spu_buf) < 0) | |
394 | { | |
395 | free (spu_buf); | |
396 | return; | |
397 | } | |
398 | ||
399 | n = (*the_target->qxfer_spu) | |
400 | (annex, NULL, (unsigned const char *)spu_buf, ofs, len); | |
401 | if (n < 0) | |
402 | write_enn (own_buf); | |
403 | else | |
404 | sprintf (own_buf, "%x", n); | |
405 | ||
406 | free (spu_buf); | |
407 | return; | |
408 | } | |
409 | ||
aa691b87 | 410 | if (the_target->read_auxv != NULL |
0876f84a | 411 | && strncmp ("qXfer:auxv:read:", own_buf, 16) == 0) |
aa691b87 | 412 | { |
0876f84a DJ |
413 | unsigned char *data; |
414 | int n; | |
aa691b87 RM |
415 | CORE_ADDR ofs; |
416 | unsigned int len; | |
0876f84a DJ |
417 | char *annex; |
418 | ||
2d717e4f DJ |
419 | require_running (own_buf); |
420 | ||
0876f84a DJ |
421 | /* Reject any annex; grab the offset and length. */ |
422 | if (decode_xfer_read (own_buf + 16, &annex, &ofs, &len) < 0 | |
423 | || annex[0] != '\0') | |
424 | { | |
425 | strcpy (own_buf, "E00"); | |
426 | return; | |
427 | } | |
428 | ||
429 | /* Read one extra byte, as an indicator of whether there is | |
430 | more. */ | |
431 | if (len > PBUFSIZ - 2) | |
432 | len = PBUFSIZ - 2; | |
433 | data = malloc (len + 1); | |
434 | n = (*the_target->read_auxv) (ofs, data, len + 1); | |
000ef4f0 DJ |
435 | if (n < 0) |
436 | write_enn (own_buf); | |
437 | else if (n > len) | |
0876f84a | 438 | *new_packet_len_p = write_qxfer_response (own_buf, data, len, 1); |
aa691b87 | 439 | else |
0876f84a DJ |
440 | *new_packet_len_p = write_qxfer_response (own_buf, data, n, 0); |
441 | ||
442 | free (data); | |
443 | ||
aa691b87 RM |
444 | return; |
445 | } | |
446 | ||
23181151 DJ |
447 | if (strncmp ("qXfer:features:read:", own_buf, 20) == 0) |
448 | { | |
449 | CORE_ADDR ofs; | |
450 | unsigned int len, total_len; | |
451 | const char *document; | |
452 | char *annex; | |
453 | ||
2d717e4f DJ |
454 | require_running (own_buf); |
455 | ||
fb1e4ffc DJ |
456 | /* Check for support. */ |
457 | document = get_features_xml ("target.xml"); | |
23181151 DJ |
458 | if (document == NULL) |
459 | { | |
460 | own_buf[0] = '\0'; | |
461 | return; | |
462 | } | |
463 | ||
fb1e4ffc DJ |
464 | /* Grab the annex, offset, and length. */ |
465 | if (decode_xfer_read (own_buf + 20, &annex, &ofs, &len) < 0) | |
466 | { | |
467 | strcpy (own_buf, "E00"); | |
468 | return; | |
469 | } | |
470 | ||
471 | /* Now grab the correct annex. */ | |
472 | document = get_features_xml (annex); | |
473 | if (document == NULL) | |
23181151 DJ |
474 | { |
475 | strcpy (own_buf, "E00"); | |
476 | return; | |
477 | } | |
478 | ||
479 | total_len = strlen (document); | |
480 | if (len > PBUFSIZ - 2) | |
481 | len = PBUFSIZ - 2; | |
482 | ||
483 | if (ofs > total_len) | |
484 | write_enn (own_buf); | |
485 | else if (len < total_len - ofs) | |
486 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
487 | len, 1); | |
488 | else | |
489 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
490 | total_len - ofs, 0); | |
491 | ||
492 | return; | |
493 | } | |
494 | ||
255e7678 DJ |
495 | if (strncmp ("qXfer:libraries:read:", own_buf, 21) == 0) |
496 | { | |
497 | CORE_ADDR ofs; | |
498 | unsigned int len, total_len; | |
499 | char *document, *p; | |
500 | struct inferior_list_entry *dll_ptr; | |
501 | char *annex; | |
502 | ||
2d717e4f DJ |
503 | require_running (own_buf); |
504 | ||
255e7678 DJ |
505 | /* Reject any annex; grab the offset and length. */ |
506 | if (decode_xfer_read (own_buf + 21, &annex, &ofs, &len) < 0 | |
507 | || annex[0] != '\0') | |
508 | { | |
509 | strcpy (own_buf, "E00"); | |
510 | return; | |
511 | } | |
512 | ||
513 | /* Over-estimate the necessary memory. Assume that every character | |
514 | in the library name must be escaped. */ | |
515 | total_len = 64; | |
516 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
517 | total_len += 128 + 6 * strlen (((struct dll_info *) dll_ptr)->name); | |
518 | ||
519 | document = malloc (total_len); | |
520 | strcpy (document, "<library-list>\n"); | |
521 | p = document + strlen (document); | |
522 | ||
523 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
524 | { | |
525 | struct dll_info *dll = (struct dll_info *) dll_ptr; | |
526 | char *name; | |
527 | ||
528 | strcpy (p, " <library name=\""); | |
529 | p = p + strlen (p); | |
530 | name = xml_escape_text (dll->name); | |
531 | strcpy (p, name); | |
532 | free (name); | |
533 | p = p + strlen (p); | |
534 | strcpy (p, "\"><segment address=\""); | |
535 | p = p + strlen (p); | |
536 | sprintf (p, "0x%lx", (long) dll->base_addr); | |
537 | p = p + strlen (p); | |
538 | strcpy (p, "\"/></library>\n"); | |
539 | p = p + strlen (p); | |
540 | } | |
541 | ||
542 | strcpy (p, "</library-list>\n"); | |
543 | ||
544 | total_len = strlen (document); | |
545 | if (len > PBUFSIZ - 2) | |
546 | len = PBUFSIZ - 2; | |
547 | ||
548 | if (ofs > total_len) | |
549 | write_enn (own_buf); | |
550 | else if (len < total_len - ofs) | |
551 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
552 | len, 1); | |
553 | else | |
554 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
555 | total_len - ofs, 0); | |
556 | ||
557 | free (document); | |
558 | return; | |
559 | } | |
560 | ||
be2a5f71 DJ |
561 | /* Protocol features query. */ |
562 | if (strncmp ("qSupported", own_buf, 10) == 0 | |
563 | && (own_buf[10] == ':' || own_buf[10] == '\0')) | |
564 | { | |
89be2091 | 565 | sprintf (own_buf, "PacketSize=%x;QPassSignals+", PBUFSIZ - 1); |
0876f84a | 566 | |
255e7678 DJ |
567 | /* We do not have any hook to indicate whether the target backend |
568 | supports qXfer:libraries:read, so always report it. */ | |
569 | strcat (own_buf, ";qXfer:libraries:read+"); | |
570 | ||
0876f84a | 571 | if (the_target->read_auxv != NULL) |
9f2e1e63 | 572 | strcat (own_buf, ";qXfer:auxv:read+"); |
2d717e4f | 573 | |
0e7f50da UW |
574 | if (the_target->qxfer_spu != NULL) |
575 | strcat (own_buf, ";qXfer:spu:read+;qXfer:spu:write+"); | |
0876f84a | 576 | |
fb1e4ffc | 577 | if (get_features_xml ("target.xml") != NULL) |
23181151 DJ |
578 | strcat (own_buf, ";qXfer:features:read+"); |
579 | ||
be2a5f71 DJ |
580 | return; |
581 | } | |
582 | ||
dae5f5cf DJ |
583 | /* Thread-local storage support. */ |
584 | if (the_target->get_tls_address != NULL | |
585 | && strncmp ("qGetTLSAddr:", own_buf, 12) == 0) | |
586 | { | |
587 | char *p = own_buf + 12; | |
588 | CORE_ADDR parts[3], address = 0; | |
589 | int i, err; | |
590 | ||
2d717e4f DJ |
591 | require_running (own_buf); |
592 | ||
dae5f5cf DJ |
593 | for (i = 0; i < 3; i++) |
594 | { | |
595 | char *p2; | |
596 | int len; | |
597 | ||
598 | if (p == NULL) | |
599 | break; | |
600 | ||
601 | p2 = strchr (p, ','); | |
602 | if (p2) | |
603 | { | |
604 | len = p2 - p; | |
605 | p2++; | |
606 | } | |
607 | else | |
608 | { | |
609 | len = strlen (p); | |
610 | p2 = NULL; | |
611 | } | |
612 | ||
613 | decode_address (&parts[i], p, len); | |
614 | p = p2; | |
615 | } | |
616 | ||
617 | if (p != NULL || i < 3) | |
618 | err = 1; | |
619 | else | |
620 | { | |
621 | struct thread_info *thread = gdb_id_to_thread (parts[0]); | |
622 | ||
623 | if (thread == NULL) | |
624 | err = 2; | |
625 | else | |
626 | err = the_target->get_tls_address (thread, parts[1], parts[2], | |
627 | &address); | |
628 | } | |
629 | ||
630 | if (err == 0) | |
631 | { | |
632 | sprintf (own_buf, "%llx", address); | |
633 | return; | |
634 | } | |
635 | else if (err > 0) | |
636 | { | |
637 | write_enn (own_buf); | |
638 | return; | |
639 | } | |
640 | ||
641 | /* Otherwise, pretend we do not understand this packet. */ | |
642 | } | |
643 | ||
c74d0ad8 DJ |
644 | /* Handle "monitor" commands. */ |
645 | if (strncmp ("qRcmd,", own_buf, 6) == 0) | |
646 | { | |
647 | char *mon = malloc (PBUFSIZ); | |
648 | int len = strlen (own_buf + 6); | |
649 | ||
650 | if ((len % 1) != 0 || unhexify (mon, own_buf + 6, len / 2) != len / 2) | |
651 | { | |
652 | write_enn (own_buf); | |
653 | free (mon); | |
654 | return; | |
655 | } | |
656 | mon[len / 2] = '\0'; | |
657 | ||
658 | write_ok (own_buf); | |
659 | ||
660 | if (strcmp (mon, "set debug 1") == 0) | |
661 | { | |
662 | debug_threads = 1; | |
663 | monitor_output ("Debug output enabled.\n"); | |
664 | } | |
665 | else if (strcmp (mon, "set debug 0") == 0) | |
666 | { | |
667 | debug_threads = 0; | |
668 | monitor_output ("Debug output disabled.\n"); | |
669 | } | |
670 | else if (strcmp (mon, "set remote-debug 1") == 0) | |
671 | { | |
672 | remote_debug = 1; | |
673 | monitor_output ("Protocol debug output enabled.\n"); | |
674 | } | |
675 | else if (strcmp (mon, "set remote-debug 0") == 0) | |
676 | { | |
677 | remote_debug = 0; | |
678 | monitor_output ("Protocol debug output disabled.\n"); | |
679 | } | |
680 | else if (strcmp (mon, "help") == 0) | |
681 | monitor_show_help (); | |
2d717e4f DJ |
682 | else if (strcmp (mon, "exit") == 0) |
683 | exit_requested = 1; | |
c74d0ad8 DJ |
684 | else |
685 | { | |
686 | monitor_output ("Unknown monitor command.\n\n"); | |
687 | monitor_show_help (); | |
688 | write_enn (own_buf); | |
689 | } | |
690 | ||
691 | free (mon); | |
692 | return; | |
693 | } | |
694 | ||
ce3a066d DJ |
695 | /* Otherwise we didn't know what packet it was. Say we didn't |
696 | understand it. */ | |
697 | own_buf[0] = 0; | |
698 | } | |
699 | ||
64386c31 DJ |
700 | /* Parse vCont packets. */ |
701 | void | |
fc620387 | 702 | handle_v_cont (char *own_buf, char *status, int *signal) |
64386c31 DJ |
703 | { |
704 | char *p, *q; | |
705 | int n = 0, i = 0; | |
706 | struct thread_resume *resume_info, default_action; | |
707 | ||
708 | /* Count the number of semicolons in the packet. There should be one | |
709 | for every action. */ | |
710 | p = &own_buf[5]; | |
711 | while (p) | |
712 | { | |
713 | n++; | |
714 | p++; | |
715 | p = strchr (p, ';'); | |
716 | } | |
717 | /* Allocate room for one extra action, for the default remain-stopped | |
718 | behavior; if no default action is in the list, we'll need the extra | |
719 | slot. */ | |
720 | resume_info = malloc ((n + 1) * sizeof (resume_info[0])); | |
721 | ||
722 | default_action.thread = -1; | |
723 | default_action.leave_stopped = 1; | |
724 | default_action.step = 0; | |
725 | default_action.sig = 0; | |
726 | ||
727 | p = &own_buf[5]; | |
728 | i = 0; | |
729 | while (*p) | |
730 | { | |
731 | p++; | |
732 | ||
733 | resume_info[i].leave_stopped = 0; | |
734 | ||
735 | if (p[0] == 's' || p[0] == 'S') | |
736 | resume_info[i].step = 1; | |
737 | else if (p[0] == 'c' || p[0] == 'C') | |
738 | resume_info[i].step = 0; | |
739 | else | |
740 | goto err; | |
741 | ||
742 | if (p[0] == 'S' || p[0] == 'C') | |
743 | { | |
744 | int sig; | |
745 | sig = strtol (p + 1, &q, 16); | |
746 | if (p == q) | |
747 | goto err; | |
748 | p = q; | |
749 | ||
750 | if (!target_signal_to_host_p (sig)) | |
751 | goto err; | |
752 | resume_info[i].sig = target_signal_to_host (sig); | |
753 | } | |
754 | else | |
755 | { | |
756 | resume_info[i].sig = 0; | |
757 | p = p + 1; | |
758 | } | |
759 | ||
760 | if (p[0] == 0) | |
761 | { | |
762 | resume_info[i].thread = -1; | |
763 | default_action = resume_info[i]; | |
764 | ||
765 | /* Note: we don't increment i here, we'll overwrite this entry | |
766 | the next time through. */ | |
767 | } | |
768 | else if (p[0] == ':') | |
769 | { | |
a06660f7 DJ |
770 | unsigned int gdb_id = strtoul (p + 1, &q, 16); |
771 | unsigned long thread_id; | |
772 | ||
64386c31 DJ |
773 | if (p == q) |
774 | goto err; | |
775 | p = q; | |
776 | if (p[0] != ';' && p[0] != 0) | |
777 | goto err; | |
778 | ||
a06660f7 DJ |
779 | thread_id = gdb_id_to_thread_id (gdb_id); |
780 | if (thread_id) | |
781 | resume_info[i].thread = thread_id; | |
782 | else | |
783 | goto err; | |
784 | ||
64386c31 DJ |
785 | i++; |
786 | } | |
787 | } | |
788 | ||
789 | resume_info[i] = default_action; | |
790 | ||
791 | /* Still used in occasional places in the backend. */ | |
792 | if (n == 1 && resume_info[0].thread != -1) | |
793 | cont_thread = resume_info[0].thread; | |
794 | else | |
795 | cont_thread = -1; | |
dc3f8883 | 796 | set_desired_inferior (0); |
64386c31 | 797 | |
a20d5e98 | 798 | enable_async_io (); |
64386c31 DJ |
799 | (*the_target->resume) (resume_info); |
800 | ||
801 | free (resume_info); | |
802 | ||
803 | *signal = mywait (status, 1); | |
804 | prepare_resume_reply (own_buf, *status, *signal); | |
a20d5e98 | 805 | disable_async_io (); |
64386c31 DJ |
806 | return; |
807 | ||
808 | err: | |
255e7678 | 809 | write_enn (own_buf); |
64386c31 DJ |
810 | free (resume_info); |
811 | return; | |
812 | } | |
813 | ||
2d717e4f DJ |
814 | /* Attach to a new program. Return 1 if successful, 0 if failure. */ |
815 | int | |
816 | handle_v_attach (char *own_buf, char *status, int *signal) | |
817 | { | |
818 | int pid; | |
819 | ||
820 | pid = strtol (own_buf + 8, NULL, 16); | |
821 | if (pid != 0 && attach_inferior (pid, status, signal) == 0) | |
822 | { | |
823 | prepare_resume_reply (own_buf, *status, *signal); | |
824 | return 1; | |
825 | } | |
826 | else | |
827 | { | |
828 | write_enn (own_buf); | |
829 | return 0; | |
830 | } | |
831 | } | |
832 | ||
833 | /* Run a new program. Return 1 if successful, 0 if failure. */ | |
834 | static int | |
835 | handle_v_run (char *own_buf, char *status, int *signal) | |
836 | { | |
837 | char *p, **pp, *next_p, **new_argv; | |
838 | int i, new_argc; | |
839 | ||
840 | new_argc = 0; | |
841 | for (p = own_buf + strlen ("vRun;"); p && *p; p = strchr (p, ';')) | |
842 | { | |
843 | p++; | |
844 | new_argc++; | |
845 | } | |
846 | ||
847 | new_argv = malloc ((new_argc + 2) * sizeof (char *)); | |
848 | i = 0; | |
849 | for (p = own_buf + strlen ("vRun;"); *p; p = next_p) | |
850 | { | |
851 | next_p = strchr (p, ';'); | |
852 | if (next_p == NULL) | |
853 | next_p = p + strlen (p); | |
854 | ||
855 | if (i == 0 && p == next_p) | |
856 | new_argv[i] = NULL; | |
857 | else | |
858 | { | |
859 | new_argv[i] = malloc (1 + (next_p - p) / 2); | |
860 | unhexify (new_argv[i], p, (next_p - p) / 2); | |
861 | new_argv[i][(next_p - p) / 2] = '\0'; | |
862 | } | |
863 | ||
864 | if (*next_p) | |
865 | next_p++; | |
866 | i++; | |
867 | } | |
868 | new_argv[i] = NULL; | |
869 | ||
870 | if (new_argv[0] == NULL) | |
871 | { | |
872 | if (program_argv == NULL) | |
873 | { | |
874 | write_enn (own_buf); | |
875 | return 0; | |
876 | } | |
877 | ||
878 | new_argv[0] = strdup (program_argv[0]); | |
879 | } | |
880 | ||
881 | /* Free the old argv. */ | |
882 | if (program_argv) | |
883 | { | |
884 | for (pp = program_argv; *pp != NULL; pp++) | |
885 | free (*pp); | |
886 | free (program_argv); | |
887 | } | |
888 | program_argv = new_argv; | |
889 | ||
890 | *signal = start_inferior (program_argv, status); | |
891 | if (*status == 'T') | |
892 | { | |
893 | prepare_resume_reply (own_buf, *status, *signal); | |
894 | return 1; | |
895 | } | |
896 | else | |
897 | { | |
898 | write_enn (own_buf); | |
899 | return 0; | |
900 | } | |
901 | } | |
902 | ||
64386c31 DJ |
903 | /* Handle all of the extended 'v' packets. */ |
904 | void | |
a6b151f1 DJ |
905 | handle_v_requests (char *own_buf, char *status, int *signal, |
906 | int packet_len, int *new_packet_len) | |
64386c31 DJ |
907 | { |
908 | if (strncmp (own_buf, "vCont;", 6) == 0) | |
909 | { | |
2d717e4f | 910 | require_running (own_buf); |
64386c31 DJ |
911 | handle_v_cont (own_buf, status, signal); |
912 | return; | |
913 | } | |
914 | ||
915 | if (strncmp (own_buf, "vCont?", 6) == 0) | |
916 | { | |
917 | strcpy (own_buf, "vCont;c;C;s;S"); | |
918 | return; | |
919 | } | |
920 | ||
a6b151f1 DJ |
921 | if (strncmp (own_buf, "vFile:", 6) == 0 |
922 | && handle_vFile (own_buf, packet_len, new_packet_len)) | |
923 | return; | |
924 | ||
2d717e4f DJ |
925 | if (strncmp (own_buf, "vAttach;", 8) == 0) |
926 | { | |
927 | if (target_running ()) | |
928 | { | |
929 | fprintf (stderr, "Killing inferior\n"); | |
930 | kill_inferior (); | |
931 | } | |
932 | handle_v_attach (own_buf, status, signal); | |
933 | return; | |
934 | } | |
935 | ||
936 | if (strncmp (own_buf, "vRun;", 5) == 0) | |
937 | { | |
938 | if (target_running ()) | |
939 | { | |
940 | fprintf (stderr, "Killing inferior\n"); | |
941 | kill_inferior (); | |
942 | } | |
943 | handle_v_run (own_buf, status, signal); | |
944 | return; | |
945 | } | |
946 | ||
64386c31 DJ |
947 | /* Otherwise we didn't know what packet it was. Say we didn't |
948 | understand it. */ | |
949 | own_buf[0] = 0; | |
950 | return; | |
951 | } | |
952 | ||
953 | void | |
27524b67 | 954 | myresume (char *own_buf, int step, int *signalp, char *statusp) |
64386c31 DJ |
955 | { |
956 | struct thread_resume resume_info[2]; | |
957 | int n = 0; | |
a20d5e98 DJ |
958 | int sig = *signalp; |
959 | ||
960 | set_desired_inferior (0); | |
64386c31 | 961 | |
d592fa2f | 962 | if (step || sig || (cont_thread != 0 && cont_thread != -1)) |
64386c31 DJ |
963 | { |
964 | resume_info[0].thread | |
965 | = ((struct inferior_list_entry *) current_inferior)->id; | |
966 | resume_info[0].step = step; | |
967 | resume_info[0].sig = sig; | |
968 | resume_info[0].leave_stopped = 0; | |
969 | n++; | |
970 | } | |
971 | resume_info[n].thread = -1; | |
972 | resume_info[n].step = 0; | |
973 | resume_info[n].sig = 0; | |
d592fa2f | 974 | resume_info[n].leave_stopped = (cont_thread != 0 && cont_thread != -1); |
64386c31 | 975 | |
a20d5e98 | 976 | enable_async_io (); |
64386c31 | 977 | (*the_target->resume) (resume_info); |
a20d5e98 DJ |
978 | *signalp = mywait (statusp, 1); |
979 | prepare_resume_reply (own_buf, *statusp, *signalp); | |
980 | disable_async_io (); | |
64386c31 DJ |
981 | } |
982 | ||
dd24457d DJ |
983 | static void |
984 | gdbserver_version (void) | |
985 | { | |
986 | printf ("GNU gdbserver %s\n" | |
255e7678 | 987 | "Copyright (C) 2007 Free Software Foundation, Inc.\n" |
dd24457d DJ |
988 | "gdbserver is free software, covered by the GNU General Public License.\n" |
989 | "This gdbserver was configured as \"%s\"\n", | |
990 | version, host_name); | |
991 | } | |
992 | ||
0bc68c49 DJ |
993 | static void |
994 | gdbserver_usage (void) | |
995 | { | |
2d717e4f DJ |
996 | printf ("Usage:\tgdbserver [OPTIONS] COMM PROG [ARGS ...]\n" |
997 | "\tgdbserver [OPTIONS] --attach COMM PID\n" | |
998 | "\tgdbserver [OPTIONS] --multi COMM\n" | |
dd24457d DJ |
999 | "\n" |
1000 | "COMM may either be a tty device (for serial debugging), or \n" | |
2d717e4f DJ |
1001 | "HOST:PORT to listen for a TCP connection.\n" |
1002 | "\n" | |
1003 | "Options:\n" | |
1004 | " --debug\t\tEnable debugging output.\n"); | |
0bc68c49 DJ |
1005 | } |
1006 | ||
2d717e4f DJ |
1007 | #undef require_running |
1008 | #define require_running(BUF) \ | |
1009 | if (!target_running ()) \ | |
1010 | { \ | |
1011 | write_enn (BUF); \ | |
1012 | break; \ | |
1013 | } | |
1014 | ||
c906108c | 1015 | int |
da85418c | 1016 | main (int argc, char *argv[]) |
c906108c | 1017 | { |
f450004a | 1018 | char ch, status, *own_buf; |
7fb85e41 | 1019 | unsigned char *mem_buf; |
c906108c | 1020 | int i = 0; |
fc620387 | 1021 | int signal; |
c906108c SS |
1022 | unsigned int len; |
1023 | CORE_ADDR mem_addr; | |
0729219d DJ |
1024 | int bad_attach; |
1025 | int pid; | |
2d717e4f DJ |
1026 | char *arg_end, *port; |
1027 | char **next_arg = &argv[1]; | |
1028 | int multi_mode = 0; | |
1029 | int attach = 0; | |
1030 | int was_running; | |
c906108c | 1031 | |
2d717e4f | 1032 | while (*next_arg != NULL && **next_arg == '-') |
dd24457d | 1033 | { |
2d717e4f DJ |
1034 | if (strcmp (*next_arg, "--version") == 0) |
1035 | { | |
1036 | gdbserver_version (); | |
1037 | exit (0); | |
1038 | } | |
1039 | else if (strcmp (*next_arg, "--help") == 0) | |
1040 | { | |
1041 | gdbserver_usage (); | |
1042 | exit (0); | |
1043 | } | |
1044 | else if (strcmp (*next_arg, "--attach") == 0) | |
1045 | attach = 1; | |
1046 | else if (strcmp (*next_arg, "--multi") == 0) | |
1047 | multi_mode = 1; | |
1048 | else if (strcmp (*next_arg, "--debug") == 0) | |
1049 | debug_threads = 1; | |
1050 | else | |
1051 | { | |
1052 | fprintf (stderr, "Unknown argument: %s\n", *next_arg); | |
1053 | exit (1); | |
1054 | } | |
dd24457d | 1055 | |
2d717e4f DJ |
1056 | next_arg++; |
1057 | continue; | |
dd24457d DJ |
1058 | } |
1059 | ||
c5aa993b | 1060 | if (setjmp (toplevel)) |
c906108c | 1061 | { |
c5aa993b JM |
1062 | fprintf (stderr, "Exiting\n"); |
1063 | exit (1); | |
c906108c SS |
1064 | } |
1065 | ||
2d717e4f DJ |
1066 | port = *next_arg; |
1067 | next_arg++; | |
1068 | if (port == NULL || (!attach && !multi_mode && *next_arg == NULL)) | |
1069 | { | |
1070 | gdbserver_usage (); | |
1071 | exit (1); | |
1072 | } | |
1073 | ||
0729219d DJ |
1074 | bad_attach = 0; |
1075 | pid = 0; | |
2d717e4f DJ |
1076 | |
1077 | /* --attach used to come after PORT, so allow it there for | |
1078 | compatibility. */ | |
1079 | if (*next_arg != NULL && strcmp (*next_arg, "--attach") == 0) | |
45b7b345 | 1080 | { |
2d717e4f DJ |
1081 | attach = 1; |
1082 | next_arg++; | |
45b7b345 DJ |
1083 | } |
1084 | ||
2d717e4f DJ |
1085 | if (attach |
1086 | && (*next_arg == NULL | |
1087 | || (*next_arg)[0] == '\0' | |
1088 | || (pid = strtoul (*next_arg, &arg_end, 0)) == 0 | |
1089 | || *arg_end != '\0' | |
1090 | || next_arg[1] != NULL)) | |
1091 | bad_attach = 1; | |
1092 | ||
1093 | if (bad_attach) | |
dd24457d DJ |
1094 | { |
1095 | gdbserver_usage (); | |
1096 | exit (1); | |
1097 | } | |
c906108c | 1098 | |
a20d5e98 | 1099 | initialize_async_io (); |
4ce44c66 JM |
1100 | initialize_low (); |
1101 | ||
255e7678 | 1102 | own_buf = malloc (PBUFSIZ + 1); |
7fb85e41 | 1103 | mem_buf = malloc (PBUFSIZ); |
0a30fbc4 | 1104 | |
2d717e4f | 1105 | if (pid == 0 && *next_arg != NULL) |
45b7b345 | 1106 | { |
2d717e4f DJ |
1107 | int i, n; |
1108 | ||
1109 | n = argc - (next_arg - argv); | |
1110 | program_argv = malloc (sizeof (char *) * (n + 1)); | |
1111 | for (i = 0; i < n; i++) | |
1112 | program_argv[i] = strdup (next_arg[i]); | |
1113 | program_argv[i] = NULL; | |
1114 | ||
45b7b345 | 1115 | /* Wait till we are at first instruction in program. */ |
2d717e4f | 1116 | signal = start_inferior (program_argv, &status); |
c906108c | 1117 | |
c588c53c MS |
1118 | /* We are now (hopefully) stopped at the first instruction of |
1119 | the target process. This assumes that the target process was | |
1120 | successfully created. */ | |
45b7b345 | 1121 | } |
2d717e4f DJ |
1122 | else if (pid != 0) |
1123 | { | |
1124 | if (attach_inferior (pid, &status, &signal) == -1) | |
1125 | error ("Attaching not supported on this target"); | |
1126 | ||
1127 | /* Otherwise succeeded. */ | |
1128 | } | |
45b7b345 DJ |
1129 | else |
1130 | { | |
2d717e4f DJ |
1131 | status = 'W'; |
1132 | signal = 0; | |
45b7b345 | 1133 | } |
c906108c | 1134 | |
311de423 PA |
1135 | /* Don't report shared library events on the initial connection, |
1136 | even if some libraries are preloaded. Avoids the "stopped by | |
1137 | shared library event" notice on gdb side. */ | |
1138 | dlls_changed = 0; | |
1139 | ||
8264bb58 DJ |
1140 | if (setjmp (toplevel)) |
1141 | { | |
1142 | fprintf (stderr, "Killing inferior\n"); | |
1143 | kill_inferior (); | |
1144 | exit (1); | |
1145 | } | |
1146 | ||
c588c53c | 1147 | if (status == 'W' || status == 'X') |
2d717e4f DJ |
1148 | was_running = 0; |
1149 | else | |
1150 | was_running = 1; | |
1151 | ||
1152 | if (!was_running && !multi_mode) | |
c588c53c | 1153 | { |
2d717e4f | 1154 | fprintf (stderr, "No program to debug. GDBserver exiting.\n"); |
c588c53c MS |
1155 | exit (1); |
1156 | } | |
1157 | ||
c906108c SS |
1158 | while (1) |
1159 | { | |
2d717e4f | 1160 | remote_open (port); |
c906108c | 1161 | |
c5aa993b | 1162 | restart: |
2d717e4f DJ |
1163 | if (setjmp (toplevel) != 0) |
1164 | { | |
1165 | /* An error occurred. */ | |
1166 | if (response_needed) | |
1167 | { | |
1168 | write_enn (own_buf); | |
1169 | putpkt (own_buf); | |
1170 | } | |
1171 | } | |
1172 | ||
a20d5e98 | 1173 | disable_async_io (); |
2d717e4f | 1174 | while (!exit_requested) |
c906108c SS |
1175 | { |
1176 | unsigned char sig; | |
01f9e8fa DJ |
1177 | int packet_len; |
1178 | int new_packet_len = -1; | |
1179 | ||
2d717e4f | 1180 | response_needed = 0; |
01f9e8fa DJ |
1181 | packet_len = getpkt (own_buf); |
1182 | if (packet_len <= 0) | |
1183 | break; | |
2d717e4f | 1184 | response_needed = 1; |
01f9e8fa | 1185 | |
c906108c SS |
1186 | i = 0; |
1187 | ch = own_buf[i++]; | |
1188 | switch (ch) | |
1189 | { | |
ce3a066d | 1190 | case 'q': |
0e7f50da | 1191 | handle_query (own_buf, packet_len, &new_packet_len); |
ce3a066d | 1192 | break; |
89be2091 DJ |
1193 | case 'Q': |
1194 | handle_general_set (own_buf); | |
1195 | break; | |
6ad8ae5c | 1196 | case 'D': |
2d717e4f | 1197 | require_running (own_buf); |
6ad8ae5c | 1198 | fprintf (stderr, "Detaching from inferior\n"); |
444d6139 | 1199 | if (detach_inferior () != 0) |
2d717e4f | 1200 | write_enn (own_buf); |
444d6139 PA |
1201 | else |
1202 | { | |
1203 | write_ok (own_buf); | |
6ad8ae5c | 1204 | |
2d717e4f DJ |
1205 | if (extended_protocol) |
1206 | { | |
1207 | /* Treat this like a normal program exit. */ | |
1208 | signal = 0; | |
1209 | status = 'W'; | |
1210 | } | |
1211 | else | |
1212 | { | |
1213 | putpkt (own_buf); | |
1214 | remote_close (); | |
6ad8ae5c | 1215 | |
2d717e4f DJ |
1216 | /* If we are attached, then we can exit. Otherwise, we |
1217 | need to hang around doing nothing, until the child | |
1218 | is gone. */ | |
1219 | if (!attached) | |
1220 | join_inferior (); | |
1221 | ||
1222 | exit (0); | |
1223 | } | |
444d6139 | 1224 | } |
2d717e4f | 1225 | break; |
c906108c | 1226 | case '!': |
2d717e4f DJ |
1227 | extended_protocol = 1; |
1228 | write_ok (own_buf); | |
c906108c SS |
1229 | break; |
1230 | case '?': | |
1231 | prepare_resume_reply (own_buf, status, signal); | |
1232 | break; | |
1233 | case 'H': | |
a06660f7 | 1234 | if (own_buf[1] == 'c' || own_buf[1] == 'g' || own_buf[1] == 's') |
c906108c | 1235 | { |
a06660f7 DJ |
1236 | unsigned long gdb_id, thread_id; |
1237 | ||
2d717e4f | 1238 | require_running (own_buf); |
a06660f7 | 1239 | gdb_id = strtoul (&own_buf[2], NULL, 16); |
2d717e4f DJ |
1240 | if (gdb_id == 0 || gdb_id == -1) |
1241 | thread_id = gdb_id; | |
1242 | else | |
a06660f7 | 1243 | { |
2d717e4f DJ |
1244 | thread_id = gdb_id_to_thread_id (gdb_id); |
1245 | if (thread_id == 0) | |
1246 | { | |
1247 | write_enn (own_buf); | |
1248 | break; | |
1249 | } | |
a06660f7 DJ |
1250 | } |
1251 | ||
1252 | if (own_buf[1] == 'g') | |
1253 | { | |
1254 | general_thread = thread_id; | |
1255 | set_desired_inferior (1); | |
1256 | } | |
1257 | else if (own_buf[1] == 'c') | |
1258 | cont_thread = thread_id; | |
1259 | else if (own_buf[1] == 's') | |
1260 | step_thread = thread_id; | |
1261 | ||
0d62e5e8 | 1262 | write_ok (own_buf); |
a06660f7 DJ |
1263 | } |
1264 | else | |
1265 | { | |
c906108c SS |
1266 | /* Silently ignore it so that gdb can extend the protocol |
1267 | without compatibility headaches. */ | |
1268 | own_buf[0] = '\0'; | |
c906108c SS |
1269 | } |
1270 | break; | |
1271 | case 'g': | |
2d717e4f | 1272 | require_running (own_buf); |
0d62e5e8 | 1273 | set_desired_inferior (1); |
0a30fbc4 | 1274 | registers_to_string (own_buf); |
c906108c SS |
1275 | break; |
1276 | case 'G': | |
2d717e4f | 1277 | require_running (own_buf); |
0d62e5e8 | 1278 | set_desired_inferior (1); |
0a30fbc4 | 1279 | registers_from_string (&own_buf[1]); |
c906108c SS |
1280 | write_ok (own_buf); |
1281 | break; | |
1282 | case 'm': | |
2d717e4f | 1283 | require_running (own_buf); |
c906108c | 1284 | decode_m_packet (&own_buf[1], &mem_addr, &len); |
c3e735a6 DJ |
1285 | if (read_inferior_memory (mem_addr, mem_buf, len) == 0) |
1286 | convert_int_to_ascii (mem_buf, own_buf, len); | |
1287 | else | |
1288 | write_enn (own_buf); | |
c906108c SS |
1289 | break; |
1290 | case 'M': | |
2d717e4f | 1291 | require_running (own_buf); |
c906108c SS |
1292 | decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf); |
1293 | if (write_inferior_memory (mem_addr, mem_buf, len) == 0) | |
1294 | write_ok (own_buf); | |
1295 | else | |
1296 | write_enn (own_buf); | |
1297 | break; | |
01f9e8fa | 1298 | case 'X': |
2d717e4f | 1299 | require_running (own_buf); |
01f9e8fa DJ |
1300 | if (decode_X_packet (&own_buf[1], packet_len - 1, |
1301 | &mem_addr, &len, mem_buf) < 0 | |
1302 | || write_inferior_memory (mem_addr, mem_buf, len) != 0) | |
1303 | write_enn (own_buf); | |
1304 | else | |
1305 | write_ok (own_buf); | |
1306 | break; | |
c906108c | 1307 | case 'C': |
2d717e4f | 1308 | require_running (own_buf); |
c906108c | 1309 | convert_ascii_to_int (own_buf + 1, &sig, 1); |
0e98d0a7 DJ |
1310 | if (target_signal_to_host_p (sig)) |
1311 | signal = target_signal_to_host (sig); | |
1312 | else | |
1313 | signal = 0; | |
27524b67 | 1314 | myresume (own_buf, 0, &signal, &status); |
c906108c SS |
1315 | break; |
1316 | case 'S': | |
2d717e4f | 1317 | require_running (own_buf); |
c906108c | 1318 | convert_ascii_to_int (own_buf + 1, &sig, 1); |
0e98d0a7 DJ |
1319 | if (target_signal_to_host_p (sig)) |
1320 | signal = target_signal_to_host (sig); | |
1321 | else | |
1322 | signal = 0; | |
27524b67 | 1323 | myresume (own_buf, 1, &signal, &status); |
c906108c SS |
1324 | break; |
1325 | case 'c': | |
2d717e4f | 1326 | require_running (own_buf); |
a20d5e98 | 1327 | signal = 0; |
27524b67 | 1328 | myresume (own_buf, 0, &signal, &status); |
c906108c SS |
1329 | break; |
1330 | case 's': | |
2d717e4f | 1331 | require_running (own_buf); |
a20d5e98 | 1332 | signal = 0; |
27524b67 | 1333 | myresume (own_buf, 1, &signal, &status); |
c906108c | 1334 | break; |
e013ee27 OF |
1335 | case 'Z': |
1336 | { | |
1337 | char *lenptr; | |
1338 | char *dataptr; | |
1339 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1340 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1341 | char type = own_buf[1]; | |
1342 | ||
1343 | if (the_target->insert_watchpoint == NULL | |
1344 | || (type < '2' || type > '4')) | |
1345 | { | |
1346 | /* No watchpoint support or not a watchpoint command; | |
1347 | unrecognized either way. */ | |
1348 | own_buf[0] = '\0'; | |
1349 | } | |
1350 | else | |
1351 | { | |
1352 | int res; | |
1353 | ||
2d717e4f | 1354 | require_running (own_buf); |
e013ee27 OF |
1355 | res = (*the_target->insert_watchpoint) (type, addr, len); |
1356 | if (res == 0) | |
1357 | write_ok (own_buf); | |
1358 | else if (res == 1) | |
1359 | /* Unsupported. */ | |
1360 | own_buf[0] = '\0'; | |
1361 | else | |
1362 | write_enn (own_buf); | |
1363 | } | |
1364 | break; | |
1365 | } | |
1366 | case 'z': | |
1367 | { | |
1368 | char *lenptr; | |
1369 | char *dataptr; | |
1370 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1371 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1372 | char type = own_buf[1]; | |
1373 | ||
1374 | if (the_target->remove_watchpoint == NULL | |
1375 | || (type < '2' || type > '4')) | |
1376 | { | |
1377 | /* No watchpoint support or not a watchpoint command; | |
1378 | unrecognized either way. */ | |
1379 | own_buf[0] = '\0'; | |
1380 | } | |
1381 | else | |
1382 | { | |
1383 | int res; | |
1384 | ||
2d717e4f | 1385 | require_running (own_buf); |
e013ee27 OF |
1386 | res = (*the_target->remove_watchpoint) (type, addr, len); |
1387 | if (res == 0) | |
1388 | write_ok (own_buf); | |
1389 | else if (res == 1) | |
1390 | /* Unsupported. */ | |
1391 | own_buf[0] = '\0'; | |
1392 | else | |
1393 | write_enn (own_buf); | |
1394 | } | |
1395 | break; | |
1396 | } | |
c906108c | 1397 | case 'k': |
2d717e4f DJ |
1398 | response_needed = 0; |
1399 | if (!target_running ()) | |
1400 | /* The packet we received doesn't make sense - but we | |
1401 | can't reply to it, either. */ | |
1402 | goto restart; | |
1403 | ||
c906108c SS |
1404 | fprintf (stderr, "Killing inferior\n"); |
1405 | kill_inferior (); | |
2d717e4f DJ |
1406 | |
1407 | /* When using the extended protocol, we wait with no | |
1408 | program running. The traditional protocol will exit | |
1409 | instead. */ | |
c906108c SS |
1410 | if (extended_protocol) |
1411 | { | |
2d717e4f DJ |
1412 | status = 'X'; |
1413 | signal = TARGET_SIGNAL_KILL; | |
1414 | was_running = 0; | |
c906108c | 1415 | goto restart; |
c906108c SS |
1416 | } |
1417 | else | |
1418 | { | |
1419 | exit (0); | |
1420 | break; | |
1421 | } | |
1422 | case 'T': | |
a06660f7 DJ |
1423 | { |
1424 | unsigned long gdb_id, thread_id; | |
1425 | ||
2d717e4f | 1426 | require_running (own_buf); |
a06660f7 DJ |
1427 | gdb_id = strtoul (&own_buf[1], NULL, 16); |
1428 | thread_id = gdb_id_to_thread_id (gdb_id); | |
1429 | if (thread_id == 0) | |
1430 | { | |
1431 | write_enn (own_buf); | |
1432 | break; | |
1433 | } | |
1434 | ||
1435 | if (mythread_alive (thread_id)) | |
1436 | write_ok (own_buf); | |
1437 | else | |
1438 | write_enn (own_buf); | |
1439 | } | |
c906108c SS |
1440 | break; |
1441 | case 'R': | |
2d717e4f DJ |
1442 | response_needed = 0; |
1443 | ||
c906108c | 1444 | /* Restarting the inferior is only supported in the |
c5aa993b | 1445 | extended protocol. */ |
c906108c SS |
1446 | if (extended_protocol) |
1447 | { | |
2d717e4f DJ |
1448 | if (target_running ()) |
1449 | kill_inferior (); | |
c906108c SS |
1450 | fprintf (stderr, "GDBserver restarting\n"); |
1451 | ||
1452 | /* Wait till we are at 1st instruction in prog. */ | |
2d717e4f DJ |
1453 | if (program_argv != NULL) |
1454 | signal = start_inferior (program_argv, &status); | |
1455 | else | |
1456 | { | |
1457 | status = 'X'; | |
1458 | signal = TARGET_SIGNAL_KILL; | |
1459 | } | |
c906108c | 1460 | goto restart; |
c906108c SS |
1461 | } |
1462 | else | |
1463 | { | |
1464 | /* It is a request we don't understand. Respond with an | |
1465 | empty packet so that gdb knows that we don't support this | |
1466 | request. */ | |
1467 | own_buf[0] = '\0'; | |
1468 | break; | |
1469 | } | |
64386c31 DJ |
1470 | case 'v': |
1471 | /* Extended (long) request. */ | |
a6b151f1 DJ |
1472 | handle_v_requests (own_buf, &status, &signal, |
1473 | packet_len, &new_packet_len); | |
64386c31 | 1474 | break; |
a6b151f1 | 1475 | |
c906108c SS |
1476 | default: |
1477 | /* It is a request we don't understand. Respond with an | |
c5aa993b JM |
1478 | empty packet so that gdb knows that we don't support this |
1479 | request. */ | |
c906108c SS |
1480 | own_buf[0] = '\0'; |
1481 | break; | |
1482 | } | |
1483 | ||
01f9e8fa DJ |
1484 | if (new_packet_len != -1) |
1485 | putpkt_binary (own_buf, new_packet_len); | |
1486 | else | |
1487 | putpkt (own_buf); | |
c906108c | 1488 | |
2d717e4f DJ |
1489 | response_needed = 0; |
1490 | ||
1491 | if (was_running && (status == 'W' || status == 'X')) | |
c906108c | 1492 | { |
2d717e4f | 1493 | was_running = 0; |
c906108c | 1494 | |
2d717e4f DJ |
1495 | if (status == 'W') |
1496 | fprintf (stderr, | |
1497 | "\nChild exited with status %d\n", signal); | |
1498 | if (status == 'X') | |
1499 | fprintf (stderr, "\nChild terminated with signal = 0x%x (%s)\n", | |
1500 | target_signal_to_host (signal), | |
1501 | target_signal_to_name (signal)); | |
1502 | ||
1503 | if (extended_protocol) | |
1504 | goto restart; | |
c906108c SS |
1505 | else |
1506 | { | |
1507 | fprintf (stderr, "GDBserver exiting\n"); | |
1508 | exit (0); | |
1509 | } | |
1510 | } | |
c906108c | 1511 | |
2d717e4f DJ |
1512 | if (status != 'W' && status != 'X') |
1513 | was_running = 1; | |
1514 | } | |
c906108c | 1515 | |
2d717e4f DJ |
1516 | /* If an exit was requested (using the "monitor exit" command), |
1517 | terminate now. The only other way to get here is for | |
1518 | getpkt to fail; close the connection and reopen it at the | |
1519 | top of the loop. */ | |
c906108c | 1520 | |
2d717e4f | 1521 | if (exit_requested) |
c906108c SS |
1522 | { |
1523 | remote_close (); | |
2d717e4f DJ |
1524 | if (attached && target_running ()) |
1525 | detach_inferior (); | |
1526 | else if (target_running ()) | |
1527 | kill_inferior (); | |
c906108c SS |
1528 | exit (0); |
1529 | } | |
1530 | else | |
1531 | { | |
45b7b345 DJ |
1532 | fprintf (stderr, "Remote side has terminated connection. " |
1533 | "GDBserver will reopen the connection.\n"); | |
c906108c SS |
1534 | remote_close (); |
1535 | } | |
1536 | } | |
1537 | } |