Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Main code for remote server for GDB. |
6aba47ca | 2 | Copyright (C) 1989, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2002, 2003, |
0fb0cc75 | 3 | 2004, 2005, 2006, 2007, 2008, 2009 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 |
ec56be1b PA |
31 | #if HAVE_MALLOC_H |
32 | #include <malloc.h> | |
33 | #endif | |
a9fa9f7d | 34 | |
a1928bad DJ |
35 | unsigned long cont_thread; |
36 | unsigned long general_thread; | |
37 | unsigned long step_thread; | |
5b1c542e | 38 | |
0d62e5e8 DJ |
39 | int server_waiting; |
40 | ||
2d717e4f DJ |
41 | static int extended_protocol; |
42 | static int attached; | |
43 | static int response_needed; | |
44 | static int exit_requested; | |
45 | ||
bd99dc85 PA |
46 | int non_stop; |
47 | ||
ccd213ac | 48 | static char **program_argv, **wrapper_argv; |
2d717e4f | 49 | |
c74d0ad8 DJ |
50 | /* Enable miscellaneous debugging output. The name is historical - it |
51 | was originally used to debug LinuxThreads support. */ | |
52 | int debug_threads; | |
53 | ||
89be2091 DJ |
54 | int pass_signals[TARGET_SIGNAL_LAST]; |
55 | ||
c906108c | 56 | jmp_buf toplevel; |
c906108c | 57 | |
9b4b61c8 UW |
58 | const char *gdbserver_xmltarget; |
59 | ||
a9fa9f7d DJ |
60 | /* The PID of the originally created or attached inferior. Used to |
61 | send signals to the process when GDB sends us an asynchronous interrupt | |
62 | (user hitting Control-C in the client), and to wait for the child to exit | |
63 | when no longer debugging it. */ | |
64 | ||
a1928bad | 65 | unsigned long signal_pid; |
a9fa9f7d | 66 | |
290fadea RS |
67 | #ifdef SIGTTOU |
68 | /* A file descriptor for the controlling terminal. */ | |
69 | int terminal_fd; | |
70 | ||
71 | /* TERMINAL_FD's original foreground group. */ | |
72 | pid_t old_foreground_pgrp; | |
73 | ||
74 | /* Hand back terminal ownership to the original foreground group. */ | |
75 | ||
76 | static void | |
77 | restore_old_foreground_pgrp (void) | |
78 | { | |
79 | tcsetpgrp (terminal_fd, old_foreground_pgrp); | |
80 | } | |
81 | #endif | |
82 | ||
ec56be1b PA |
83 | /* Set if you want to disable optional thread related packets support |
84 | in gdbserver, for the sake of testing GDB against stubs that don't | |
85 | support them. */ | |
86 | int disable_packet_vCont; | |
87 | int disable_packet_Tthread; | |
88 | int disable_packet_qC; | |
89 | int disable_packet_qfThreadInfo; | |
90 | ||
5b1c542e PA |
91 | /* Last status reported to GDB. */ |
92 | static struct target_waitstatus last_status; | |
93 | static unsigned long last_ptid; | |
94 | ||
bd99dc85 PA |
95 | static char *own_buf; |
96 | static unsigned char *mem_buf; | |
97 | ||
98 | /* Structure holding information relative to a single stop reply. We | |
99 | keep a queue of these (really a singly-linked list) to push to GDB | |
100 | in non-stop mode. */ | |
101 | struct vstop_notif | |
102 | { | |
103 | /* Pointer to next in list. */ | |
104 | struct vstop_notif *next; | |
105 | ||
106 | /* Thread or process that got the event. */ | |
107 | unsigned long ptid; | |
108 | ||
109 | /* Event info. */ | |
110 | struct target_waitstatus status; | |
111 | }; | |
112 | ||
113 | /* The pending stop replies list head. */ | |
114 | static struct vstop_notif *notif_queue = NULL; | |
115 | ||
116 | /* Put a stop reply to the stop reply queue. */ | |
117 | ||
118 | static void | |
119 | queue_stop_reply (unsigned long ptid, struct target_waitstatus *status) | |
120 | { | |
121 | struct vstop_notif *new_notif; | |
122 | ||
123 | new_notif = malloc (sizeof (*new_notif)); | |
124 | new_notif->next = NULL; | |
125 | new_notif->ptid = ptid; | |
126 | new_notif->status = *status; | |
127 | ||
128 | if (notif_queue) | |
129 | { | |
130 | struct vstop_notif *tail; | |
131 | for (tail = notif_queue; | |
132 | tail && tail->next; | |
133 | tail = tail->next) | |
134 | ; | |
135 | tail->next = new_notif; | |
136 | } | |
137 | else | |
138 | notif_queue = new_notif; | |
139 | ||
140 | if (remote_debug) | |
141 | { | |
142 | int i = 0; | |
143 | struct vstop_notif *n; | |
144 | ||
145 | for (n = notif_queue; n; n = n->next) | |
146 | i++; | |
147 | ||
148 | fprintf (stderr, "pending stop replies: %d\n", i); | |
149 | } | |
150 | } | |
151 | ||
152 | /* Place an event in the stop reply queue, and push a notification if | |
153 | we aren't sending one yet. */ | |
154 | ||
155 | void | |
156 | push_event (unsigned long ptid, struct target_waitstatus *status) | |
157 | { | |
158 | queue_stop_reply (ptid, status); | |
159 | ||
160 | /* If this is the first stop reply in the queue, then inform GDB | |
161 | about it, by sending a Stop notification. */ | |
162 | if (notif_queue->next == NULL) | |
163 | { | |
164 | char *p = own_buf; | |
165 | strcpy (p, "Stop:"); | |
166 | p += strlen (p); | |
167 | prepare_resume_reply (p, | |
168 | notif_queue->ptid, ¬if_queue->status); | |
169 | putpkt_notif (own_buf); | |
170 | } | |
171 | } | |
172 | ||
173 | /* Get rid of the currently pending stop replies. */ | |
174 | ||
175 | static void | |
176 | discard_queued_stop_replies (void) | |
177 | { | |
178 | struct vstop_notif *next; | |
179 | ||
180 | while (notif_queue) | |
181 | { | |
182 | next = notif_queue->next; | |
183 | notif_queue = next; | |
184 | ||
185 | free (next); | |
186 | } | |
187 | } | |
188 | ||
189 | /* If there are more stop replies to push, push one now. */ | |
190 | ||
191 | static void | |
192 | send_next_stop_reply (char *own_buf) | |
193 | { | |
194 | if (notif_queue) | |
195 | prepare_resume_reply (own_buf, | |
196 | notif_queue->ptid, | |
197 | ¬if_queue->status); | |
198 | else | |
199 | write_ok (own_buf); | |
200 | } | |
201 | ||
2d717e4f DJ |
202 | static int |
203 | target_running (void) | |
204 | { | |
205 | return all_threads.head != NULL; | |
206 | } | |
207 | ||
fc620387 | 208 | static int |
5b1c542e | 209 | start_inferior (char **argv) |
c906108c | 210 | { |
ccd213ac | 211 | char **new_argv = argv; |
2d717e4f DJ |
212 | attached = 0; |
213 | ||
ccd213ac DJ |
214 | if (wrapper_argv != NULL) |
215 | { | |
216 | int i, count = 1; | |
217 | ||
218 | for (i = 0; wrapper_argv[i] != NULL; i++) | |
219 | count++; | |
220 | for (i = 0; argv[i] != NULL; i++) | |
221 | count++; | |
222 | new_argv = alloca (sizeof (char *) * count); | |
223 | count = 0; | |
224 | for (i = 0; wrapper_argv[i] != NULL; i++) | |
225 | new_argv[count++] = wrapper_argv[i]; | |
226 | for (i = 0; argv[i] != NULL; i++) | |
227 | new_argv[count++] = argv[i]; | |
228 | new_argv[count] = NULL; | |
229 | } | |
230 | ||
b80864fb | 231 | #ifdef SIGTTOU |
a9fa9f7d DJ |
232 | signal (SIGTTOU, SIG_DFL); |
233 | signal (SIGTTIN, SIG_DFL); | |
b80864fb | 234 | #endif |
a9fa9f7d | 235 | |
ccd213ac | 236 | signal_pid = create_inferior (new_argv[0], new_argv); |
0d62e5e8 | 237 | |
c588c53c MS |
238 | /* FIXME: we don't actually know at this point that the create |
239 | actually succeeded. We won't know that until we wait. */ | |
a1928bad | 240 | fprintf (stderr, "Process %s created; pid = %ld\n", argv[0], |
a9fa9f7d | 241 | signal_pid); |
b80864fb | 242 | fflush (stderr); |
a9fa9f7d | 243 | |
b80864fb | 244 | #ifdef SIGTTOU |
a9fa9f7d DJ |
245 | signal (SIGTTOU, SIG_IGN); |
246 | signal (SIGTTIN, SIG_IGN); | |
290fadea RS |
247 | terminal_fd = fileno (stderr); |
248 | old_foreground_pgrp = tcgetpgrp (terminal_fd); | |
249 | tcsetpgrp (terminal_fd, signal_pid); | |
250 | atexit (restore_old_foreground_pgrp); | |
b80864fb | 251 | #endif |
c906108c | 252 | |
ccd213ac DJ |
253 | if (wrapper_argv != NULL) |
254 | { | |
255 | struct thread_resume resume_info; | |
5b1c542e | 256 | unsigned long ptid; |
ccd213ac DJ |
257 | |
258 | resume_info.thread = -1; | |
bd99dc85 | 259 | resume_info.kind = resume_continue; |
ccd213ac | 260 | resume_info.sig = 0; |
ccd213ac | 261 | |
bd99dc85 PA |
262 | ptid = mywait (&last_status, 0, 0); |
263 | ||
5b1c542e PA |
264 | if (last_status.kind != TARGET_WAITKIND_STOPPED) |
265 | return signal_pid; | |
ccd213ac DJ |
266 | |
267 | do | |
268 | { | |
2bd7c093 | 269 | (*the_target->resume) (&resume_info, 1); |
ccd213ac | 270 | |
bd99dc85 | 271 | mywait (&last_status, 0, 0); |
5b1c542e PA |
272 | if (last_status.kind != TARGET_WAITKIND_STOPPED) |
273 | return signal_pid; | |
ccd213ac | 274 | } |
5b1c542e | 275 | while (last_status.value.sig != TARGET_SIGNAL_TRAP); |
ccd213ac | 276 | |
5b1c542e | 277 | return signal_pid; |
ccd213ac DJ |
278 | } |
279 | ||
5b1c542e PA |
280 | /* Wait till we are at 1st instruction in program, return new pid |
281 | (assuming success). */ | |
bd99dc85 | 282 | last_ptid = mywait (&last_status, 0, 0); |
5b1c542e PA |
283 | |
284 | return signal_pid; | |
c906108c SS |
285 | } |
286 | ||
45b7b345 | 287 | static int |
5b1c542e | 288 | attach_inferior (int pid) |
45b7b345 DJ |
289 | { |
290 | /* myattach should return -1 if attaching is unsupported, | |
291 | 0 if it succeeded, and call error() otherwise. */ | |
a9fa9f7d | 292 | |
45b7b345 DJ |
293 | if (myattach (pid) != 0) |
294 | return -1; | |
295 | ||
2d717e4f DJ |
296 | attached = 1; |
297 | ||
6910d122 | 298 | fprintf (stderr, "Attached; pid = %d\n", pid); |
b80864fb | 299 | fflush (stderr); |
6910d122 | 300 | |
a9fa9f7d DJ |
301 | /* FIXME - It may be that we should get the SIGNAL_PID from the |
302 | attach function, so that it can be the main thread instead of | |
303 | whichever we were told to attach to. */ | |
304 | signal_pid = pid; | |
305 | ||
bd99dc85 PA |
306 | if (!non_stop) |
307 | { | |
308 | last_ptid = mywait (&last_status, 0, 0); | |
309 | ||
310 | /* GDB knows to ignore the first SIGSTOP after attaching to a running | |
311 | process using the "attach" command, but this is different; it's | |
312 | just using "target remote". Pretend it's just starting up. */ | |
313 | if (last_status.kind == TARGET_WAITKIND_STOPPED | |
314 | && last_status.value.sig == TARGET_SIGNAL_STOP) | |
315 | last_status.value.sig = TARGET_SIGNAL_TRAP; | |
316 | } | |
9db87ebd | 317 | |
45b7b345 DJ |
318 | return 0; |
319 | } | |
320 | ||
c906108c | 321 | extern int remote_debug; |
ce3a066d | 322 | |
0876f84a DJ |
323 | /* Decode a qXfer read request. Return 0 if everything looks OK, |
324 | or -1 otherwise. */ | |
325 | ||
326 | static int | |
327 | decode_xfer_read (char *buf, char **annex, CORE_ADDR *ofs, unsigned int *len) | |
328 | { | |
329 | /* Extract and NUL-terminate the annex. */ | |
330 | *annex = buf; | |
331 | while (*buf && *buf != ':') | |
332 | buf++; | |
333 | if (*buf == '\0') | |
334 | return -1; | |
335 | *buf++ = 0; | |
336 | ||
0e7f50da | 337 | /* After the read marker and annex, qXfer looks like a |
0876f84a DJ |
338 | traditional 'm' packet. */ |
339 | decode_m_packet (buf, ofs, len); | |
340 | ||
341 | return 0; | |
342 | } | |
343 | ||
344 | /* Write the response to a successful qXfer read. Returns the | |
345 | length of the (binary) data stored in BUF, corresponding | |
346 | to as much of DATA/LEN as we could fit. IS_MORE controls | |
347 | the first character of the response. */ | |
348 | static int | |
23181151 | 349 | write_qxfer_response (char *buf, const void *data, int len, int is_more) |
0876f84a DJ |
350 | { |
351 | int out_len; | |
352 | ||
353 | if (is_more) | |
354 | buf[0] = 'm'; | |
355 | else | |
356 | buf[0] = 'l'; | |
357 | ||
358 | return remote_escape_output (data, len, (unsigned char *) buf + 1, &out_len, | |
359 | PBUFSIZ - 2) + 1; | |
360 | } | |
361 | ||
89be2091 DJ |
362 | /* Handle all of the extended 'Q' packets. */ |
363 | void | |
364 | handle_general_set (char *own_buf) | |
365 | { | |
366 | if (strncmp ("QPassSignals:", own_buf, strlen ("QPassSignals:")) == 0) | |
367 | { | |
368 | int numsigs = (int) TARGET_SIGNAL_LAST, i; | |
369 | const char *p = own_buf + strlen ("QPassSignals:"); | |
370 | CORE_ADDR cursig; | |
371 | ||
372 | p = decode_address_to_semicolon (&cursig, p); | |
373 | for (i = 0; i < numsigs; i++) | |
374 | { | |
375 | if (i == cursig) | |
376 | { | |
377 | pass_signals[i] = 1; | |
378 | if (*p == '\0') | |
379 | /* Keep looping, to clear the remaining signals. */ | |
380 | cursig = -1; | |
381 | else | |
382 | p = decode_address_to_semicolon (&cursig, p); | |
383 | } | |
384 | else | |
385 | pass_signals[i] = 0; | |
386 | } | |
387 | strcpy (own_buf, "OK"); | |
388 | return; | |
389 | } | |
390 | ||
a6f3e723 SL |
391 | if (strcmp (own_buf, "QStartNoAckMode") == 0) |
392 | { | |
393 | if (remote_debug) | |
394 | { | |
395 | fprintf (stderr, "[noack mode enabled]\n"); | |
396 | fflush (stderr); | |
397 | } | |
398 | ||
399 | noack_mode = 1; | |
400 | write_ok (own_buf); | |
401 | return; | |
402 | } | |
403 | ||
bd99dc85 PA |
404 | if (strncmp (own_buf, "QNonStop:", 9) == 0) |
405 | { | |
406 | char *mode = own_buf + 9; | |
407 | int req = -1; | |
408 | char *req_str; | |
409 | ||
410 | if (strcmp (mode, "0") == 0) | |
411 | req = 0; | |
412 | else if (strcmp (mode, "1") == 0) | |
413 | req = 1; | |
414 | else | |
415 | { | |
416 | /* We don't know what this mode is, so complain to | |
417 | GDB. */ | |
418 | fprintf (stderr, "Unknown non-stop mode requested: %s\n", | |
419 | own_buf); | |
420 | write_enn (own_buf); | |
421 | return; | |
422 | } | |
423 | ||
424 | req_str = req ? "non-stop" : "all-stop"; | |
425 | if (start_non_stop (req) != 0) | |
426 | { | |
427 | fprintf (stderr, "Setting %s mode failed\n", req_str); | |
428 | write_enn (own_buf); | |
429 | return; | |
430 | } | |
431 | ||
432 | non_stop = req; | |
433 | ||
434 | if (remote_debug) | |
435 | fprintf (stderr, "[%s mode enabled]\n", req_str); | |
436 | ||
437 | write_ok (own_buf); | |
438 | return; | |
439 | } | |
440 | ||
89be2091 DJ |
441 | /* Otherwise we didn't know what packet it was. Say we didn't |
442 | understand it. */ | |
443 | own_buf[0] = 0; | |
444 | } | |
445 | ||
23181151 | 446 | static const char * |
fb1e4ffc | 447 | get_features_xml (const char *annex) |
23181151 | 448 | { |
9b4b61c8 UW |
449 | /* gdbserver_xmltarget defines what to return when looking |
450 | for the "target.xml" file. Its contents can either be | |
451 | verbatim XML code (prefixed with a '@') or else the name | |
452 | of the actual XML file to be used in place of "target.xml". | |
fb1e4ffc | 453 | |
9b4b61c8 UW |
454 | This variable is set up from the auto-generated |
455 | init_registers_... routine for the current target. */ | |
fb1e4ffc | 456 | |
9b4b61c8 | 457 | if (gdbserver_xmltarget |
221c031f | 458 | && strcmp (annex, "target.xml") == 0) |
23181151 | 459 | { |
9b4b61c8 UW |
460 | if (*gdbserver_xmltarget == '@') |
461 | return gdbserver_xmltarget + 1; | |
23181151 | 462 | else |
9b4b61c8 | 463 | annex = gdbserver_xmltarget; |
23181151 DJ |
464 | } |
465 | ||
9b4b61c8 UW |
466 | #ifdef USE_XML |
467 | { | |
468 | extern const char *const xml_builtin[][2]; | |
469 | int i; | |
470 | ||
471 | /* Look for the annex. */ | |
472 | for (i = 0; xml_builtin[i][0] != NULL; i++) | |
473 | if (strcmp (annex, xml_builtin[i][0]) == 0) | |
474 | break; | |
475 | ||
476 | if (xml_builtin[i][0] != NULL) | |
477 | return xml_builtin[i][1]; | |
478 | } | |
479 | #endif | |
480 | ||
481 | return NULL; | |
23181151 DJ |
482 | } |
483 | ||
c74d0ad8 DJ |
484 | void |
485 | monitor_show_help (void) | |
486 | { | |
487 | monitor_output ("The following monitor commands are supported:\n"); | |
488 | monitor_output (" set debug <0|1>\n"); | |
1b3f6016 | 489 | monitor_output (" Enable general debugging messages\n"); |
c74d0ad8 DJ |
490 | monitor_output (" set remote-debug <0|1>\n"); |
491 | monitor_output (" Enable remote protocol debugging messages\n"); | |
ecd7ecbc DJ |
492 | monitor_output (" exit\n"); |
493 | monitor_output (" Quit GDBserver\n"); | |
c74d0ad8 DJ |
494 | } |
495 | ||
08388c79 DE |
496 | /* Subroutine of handle_search_memory to simplify it. */ |
497 | ||
498 | static int | |
499 | handle_search_memory_1 (CORE_ADDR start_addr, CORE_ADDR search_space_len, | |
500 | gdb_byte *pattern, unsigned pattern_len, | |
501 | gdb_byte *search_buf, | |
502 | unsigned chunk_size, unsigned search_buf_size, | |
503 | CORE_ADDR *found_addrp) | |
504 | { | |
505 | /* Prime the search buffer. */ | |
506 | ||
507 | if (read_inferior_memory (start_addr, search_buf, search_buf_size) != 0) | |
508 | { | |
5e1471f5 | 509 | warning ("Unable to access target memory at 0x%lx, halting search.", |
08388c79 DE |
510 | (long) start_addr); |
511 | return -1; | |
512 | } | |
513 | ||
514 | /* Perform the search. | |
515 | ||
516 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
517 | When we've scanned N bytes we copy the trailing bytes to the start and | |
518 | read in another N bytes. */ | |
519 | ||
520 | while (search_space_len >= pattern_len) | |
521 | { | |
522 | gdb_byte *found_ptr; | |
523 | unsigned nr_search_bytes = (search_space_len < search_buf_size | |
524 | ? search_space_len | |
525 | : search_buf_size); | |
526 | ||
527 | found_ptr = memmem (search_buf, nr_search_bytes, pattern, pattern_len); | |
528 | ||
529 | if (found_ptr != NULL) | |
530 | { | |
531 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
532 | *found_addrp = found_addr; | |
533 | return 1; | |
534 | } | |
535 | ||
536 | /* Not found in this chunk, skip to next chunk. */ | |
537 | ||
538 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
539 | if (search_space_len >= chunk_size) | |
540 | search_space_len -= chunk_size; | |
541 | else | |
542 | search_space_len = 0; | |
543 | ||
544 | if (search_space_len >= pattern_len) | |
545 | { | |
546 | unsigned keep_len = search_buf_size - chunk_size; | |
547 | CORE_ADDR read_addr = start_addr + keep_len; | |
548 | int nr_to_read; | |
549 | ||
550 | /* Copy the trailing part of the previous iteration to the front | |
551 | of the buffer for the next iteration. */ | |
552 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
553 | ||
554 | nr_to_read = (search_space_len - keep_len < chunk_size | |
555 | ? search_space_len - keep_len | |
556 | : chunk_size); | |
557 | ||
558 | if (read_inferior_memory (read_addr, search_buf + keep_len, | |
559 | nr_to_read) != 0) | |
560 | { | |
5e1471f5 | 561 | warning ("Unable to access target memory at 0x%lx, halting search.", |
08388c79 DE |
562 | (long) read_addr); |
563 | return -1; | |
564 | } | |
565 | ||
566 | start_addr += chunk_size; | |
567 | } | |
568 | } | |
569 | ||
570 | /* Not found. */ | |
571 | ||
572 | return 0; | |
573 | } | |
574 | ||
575 | /* Handle qSearch:memory packets. */ | |
576 | ||
577 | static void | |
578 | handle_search_memory (char *own_buf, int packet_len) | |
579 | { | |
580 | CORE_ADDR start_addr; | |
581 | CORE_ADDR search_space_len; | |
582 | gdb_byte *pattern; | |
583 | unsigned int pattern_len; | |
584 | /* NOTE: also defined in find.c testcase. */ | |
585 | #define SEARCH_CHUNK_SIZE 16000 | |
586 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
587 | /* Buffer to hold memory contents for searching. */ | |
588 | gdb_byte *search_buf; | |
589 | unsigned search_buf_size; | |
590 | int found; | |
591 | CORE_ADDR found_addr; | |
592 | int cmd_name_len = sizeof ("qSearch:memory:") - 1; | |
593 | ||
aef93bd7 | 594 | pattern = malloc (packet_len); |
08388c79 DE |
595 | if (pattern == NULL) |
596 | { | |
5e1471f5 | 597 | error ("Unable to allocate memory to perform the search"); |
08388c79 DE |
598 | strcpy (own_buf, "E00"); |
599 | return; | |
600 | } | |
601 | if (decode_search_memory_packet (own_buf + cmd_name_len, | |
602 | packet_len - cmd_name_len, | |
603 | &start_addr, &search_space_len, | |
604 | pattern, &pattern_len) < 0) | |
605 | { | |
606 | free (pattern); | |
5e1471f5 | 607 | error ("Error in parsing qSearch:memory packet"); |
08388c79 DE |
608 | strcpy (own_buf, "E00"); |
609 | return; | |
610 | } | |
611 | ||
612 | search_buf_size = chunk_size + pattern_len - 1; | |
613 | ||
614 | /* No point in trying to allocate a buffer larger than the search space. */ | |
615 | if (search_space_len < search_buf_size) | |
616 | search_buf_size = search_space_len; | |
617 | ||
aef93bd7 | 618 | search_buf = malloc (search_buf_size); |
08388c79 DE |
619 | if (search_buf == NULL) |
620 | { | |
621 | free (pattern); | |
5e1471f5 | 622 | error ("Unable to allocate memory to perform the search"); |
08388c79 DE |
623 | strcpy (own_buf, "E00"); |
624 | return; | |
625 | } | |
626 | ||
627 | found = handle_search_memory_1 (start_addr, search_space_len, | |
628 | pattern, pattern_len, | |
629 | search_buf, chunk_size, search_buf_size, | |
630 | &found_addr); | |
631 | ||
632 | if (found > 0) | |
633 | sprintf (own_buf, "1,%lx", (long) found_addr); | |
634 | else if (found == 0) | |
635 | strcpy (own_buf, "0"); | |
636 | else | |
637 | strcpy (own_buf, "E00"); | |
638 | ||
639 | free (search_buf); | |
640 | free (pattern); | |
641 | } | |
642 | ||
2d717e4f DJ |
643 | #define require_running(BUF) \ |
644 | if (!target_running ()) \ | |
645 | { \ | |
646 | write_enn (BUF); \ | |
647 | return; \ | |
648 | } | |
649 | ||
ce3a066d DJ |
650 | /* Handle all of the extended 'q' packets. */ |
651 | void | |
0e7f50da | 652 | handle_query (char *own_buf, int packet_len, int *new_packet_len_p) |
ce3a066d | 653 | { |
0d62e5e8 DJ |
654 | static struct inferior_list_entry *thread_ptr; |
655 | ||
bb63802a | 656 | /* Reply the current thread id. */ |
db42f210 | 657 | if (strcmp ("qC", own_buf) == 0 && !disable_packet_qC) |
bb63802a | 658 | { |
bd99dc85 | 659 | unsigned long gdb_id; |
2d717e4f | 660 | require_running (own_buf); |
bd99dc85 PA |
661 | |
662 | if (general_thread != 0 && general_thread != -1) | |
663 | gdb_id = general_thread; | |
664 | else | |
665 | { | |
666 | thread_ptr = all_threads.head; | |
667 | gdb_id = thread_to_gdb_id ((struct thread_info *)thread_ptr); | |
668 | } | |
669 | ||
670 | sprintf (own_buf, "QC%lx", gdb_id); | |
bb63802a UW |
671 | return; |
672 | } | |
673 | ||
ce3a066d DJ |
674 | if (strcmp ("qSymbol::", own_buf) == 0) |
675 | { | |
2d717e4f | 676 | if (target_running () && the_target->look_up_symbols != NULL) |
2f2893d9 DJ |
677 | (*the_target->look_up_symbols) (); |
678 | ||
ce3a066d DJ |
679 | strcpy (own_buf, "OK"); |
680 | return; | |
681 | } | |
682 | ||
db42f210 | 683 | if (!disable_packet_qfThreadInfo) |
0d62e5e8 | 684 | { |
db42f210 | 685 | if (strcmp ("qfThreadInfo", own_buf) == 0) |
0d62e5e8 | 686 | { |
db42f210 PA |
687 | require_running (own_buf); |
688 | thread_ptr = all_threads.head; | |
1b3f6016 PA |
689 | sprintf (own_buf, "m%x", |
690 | thread_to_gdb_id ((struct thread_info *)thread_ptr)); | |
0d62e5e8 DJ |
691 | thread_ptr = thread_ptr->next; |
692 | return; | |
693 | } | |
db42f210 PA |
694 | |
695 | if (strcmp ("qsThreadInfo", own_buf) == 0) | |
0d62e5e8 | 696 | { |
db42f210 PA |
697 | require_running (own_buf); |
698 | if (thread_ptr != NULL) | |
699 | { | |
1b3f6016 PA |
700 | sprintf (own_buf, "m%x", |
701 | thread_to_gdb_id ((struct thread_info *)thread_ptr)); | |
db42f210 PA |
702 | thread_ptr = thread_ptr->next; |
703 | return; | |
704 | } | |
705 | else | |
706 | { | |
707 | sprintf (own_buf, "l"); | |
708 | return; | |
709 | } | |
0d62e5e8 DJ |
710 | } |
711 | } | |
aa691b87 | 712 | |
52fb6437 NS |
713 | if (the_target->read_offsets != NULL |
714 | && strcmp ("qOffsets", own_buf) == 0) | |
715 | { | |
716 | CORE_ADDR text, data; | |
2d717e4f DJ |
717 | |
718 | require_running (own_buf); | |
52fb6437 NS |
719 | if (the_target->read_offsets (&text, &data)) |
720 | sprintf (own_buf, "Text=%lX;Data=%lX;Bss=%lX", | |
721 | (long)text, (long)data, (long)data); | |
722 | else | |
723 | write_enn (own_buf); | |
1b3f6016 | 724 | |
52fb6437 NS |
725 | return; |
726 | } | |
727 | ||
0e7f50da UW |
728 | if (the_target->qxfer_spu != NULL |
729 | && strncmp ("qXfer:spu:read:", own_buf, 15) == 0) | |
730 | { | |
731 | char *annex; | |
732 | int n; | |
733 | unsigned int len; | |
734 | CORE_ADDR ofs; | |
735 | unsigned char *spu_buf; | |
736 | ||
2d717e4f | 737 | require_running (own_buf); |
0e7f50da UW |
738 | strcpy (own_buf, "E00"); |
739 | if (decode_xfer_read (own_buf + 15, &annex, &ofs, &len) < 0) | |
78e5cee6 | 740 | return; |
0e7f50da UW |
741 | if (len > PBUFSIZ - 2) |
742 | len = PBUFSIZ - 2; | |
aef93bd7 | 743 | spu_buf = malloc (len + 1); |
0e7f50da | 744 | if (!spu_buf) |
1b3f6016 | 745 | return; |
0e7f50da UW |
746 | |
747 | n = (*the_target->qxfer_spu) (annex, spu_buf, NULL, ofs, len + 1); | |
1b3f6016 | 748 | if (n < 0) |
0e7f50da UW |
749 | write_enn (own_buf); |
750 | else if (n > len) | |
78e5cee6 | 751 | *new_packet_len_p = write_qxfer_response (own_buf, spu_buf, len, 1); |
1b3f6016 | 752 | else |
78e5cee6 | 753 | *new_packet_len_p = write_qxfer_response (own_buf, spu_buf, n, 0); |
0e7f50da UW |
754 | |
755 | free (spu_buf); | |
756 | return; | |
757 | } | |
758 | ||
759 | if (the_target->qxfer_spu != NULL | |
760 | && strncmp ("qXfer:spu:write:", own_buf, 16) == 0) | |
761 | { | |
762 | char *annex; | |
763 | int n; | |
764 | unsigned int len; | |
765 | CORE_ADDR ofs; | |
766 | unsigned char *spu_buf; | |
767 | ||
2d717e4f | 768 | require_running (own_buf); |
0e7f50da | 769 | strcpy (own_buf, "E00"); |
aef93bd7 | 770 | spu_buf = malloc (packet_len - 15); |
0e7f50da | 771 | if (!spu_buf) |
1b3f6016 | 772 | return; |
0e7f50da UW |
773 | if (decode_xfer_write (own_buf + 16, packet_len - 16, &annex, |
774 | &ofs, &len, spu_buf) < 0) | |
775 | { | |
776 | free (spu_buf); | |
777 | return; | |
778 | } | |
779 | ||
1b3f6016 | 780 | n = (*the_target->qxfer_spu) |
0e7f50da UW |
781 | (annex, NULL, (unsigned const char *)spu_buf, ofs, len); |
782 | if (n < 0) | |
783 | write_enn (own_buf); | |
784 | else | |
785 | sprintf (own_buf, "%x", n); | |
786 | ||
787 | free (spu_buf); | |
788 | return; | |
789 | } | |
790 | ||
aa691b87 | 791 | if (the_target->read_auxv != NULL |
0876f84a | 792 | && strncmp ("qXfer:auxv:read:", own_buf, 16) == 0) |
aa691b87 | 793 | { |
0876f84a DJ |
794 | unsigned char *data; |
795 | int n; | |
aa691b87 RM |
796 | CORE_ADDR ofs; |
797 | unsigned int len; | |
0876f84a DJ |
798 | char *annex; |
799 | ||
2d717e4f DJ |
800 | require_running (own_buf); |
801 | ||
0876f84a DJ |
802 | /* Reject any annex; grab the offset and length. */ |
803 | if (decode_xfer_read (own_buf + 16, &annex, &ofs, &len) < 0 | |
804 | || annex[0] != '\0') | |
805 | { | |
806 | strcpy (own_buf, "E00"); | |
807 | return; | |
808 | } | |
809 | ||
810 | /* Read one extra byte, as an indicator of whether there is | |
811 | more. */ | |
812 | if (len > PBUFSIZ - 2) | |
813 | len = PBUFSIZ - 2; | |
aef93bd7 DE |
814 | data = malloc (len + 1); |
815 | if (data == NULL) | |
816 | { | |
817 | write_enn (own_buf); | |
818 | return; | |
819 | } | |
0876f84a | 820 | n = (*the_target->read_auxv) (ofs, data, len + 1); |
000ef4f0 DJ |
821 | if (n < 0) |
822 | write_enn (own_buf); | |
823 | else if (n > len) | |
0876f84a | 824 | *new_packet_len_p = write_qxfer_response (own_buf, data, len, 1); |
aa691b87 | 825 | else |
0876f84a DJ |
826 | *new_packet_len_p = write_qxfer_response (own_buf, data, n, 0); |
827 | ||
828 | free (data); | |
829 | ||
aa691b87 RM |
830 | return; |
831 | } | |
832 | ||
23181151 DJ |
833 | if (strncmp ("qXfer:features:read:", own_buf, 20) == 0) |
834 | { | |
835 | CORE_ADDR ofs; | |
836 | unsigned int len, total_len; | |
837 | const char *document; | |
838 | char *annex; | |
839 | ||
2d717e4f DJ |
840 | require_running (own_buf); |
841 | ||
fb1e4ffc DJ |
842 | /* Grab the annex, offset, and length. */ |
843 | if (decode_xfer_read (own_buf + 20, &annex, &ofs, &len) < 0) | |
844 | { | |
845 | strcpy (own_buf, "E00"); | |
846 | return; | |
847 | } | |
848 | ||
849 | /* Now grab the correct annex. */ | |
850 | document = get_features_xml (annex); | |
851 | if (document == NULL) | |
23181151 DJ |
852 | { |
853 | strcpy (own_buf, "E00"); | |
854 | return; | |
855 | } | |
856 | ||
857 | total_len = strlen (document); | |
858 | if (len > PBUFSIZ - 2) | |
859 | len = PBUFSIZ - 2; | |
860 | ||
861 | if (ofs > total_len) | |
862 | write_enn (own_buf); | |
863 | else if (len < total_len - ofs) | |
864 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
865 | len, 1); | |
866 | else | |
867 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
868 | total_len - ofs, 0); | |
869 | ||
870 | return; | |
871 | } | |
872 | ||
255e7678 DJ |
873 | if (strncmp ("qXfer:libraries:read:", own_buf, 21) == 0) |
874 | { | |
875 | CORE_ADDR ofs; | |
876 | unsigned int len, total_len; | |
877 | char *document, *p; | |
878 | struct inferior_list_entry *dll_ptr; | |
879 | char *annex; | |
880 | ||
2d717e4f DJ |
881 | require_running (own_buf); |
882 | ||
255e7678 DJ |
883 | /* Reject any annex; grab the offset and length. */ |
884 | if (decode_xfer_read (own_buf + 21, &annex, &ofs, &len) < 0 | |
885 | || annex[0] != '\0') | |
886 | { | |
887 | strcpy (own_buf, "E00"); | |
888 | return; | |
889 | } | |
890 | ||
891 | /* Over-estimate the necessary memory. Assume that every character | |
892 | in the library name must be escaped. */ | |
893 | total_len = 64; | |
894 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
895 | total_len += 128 + 6 * strlen (((struct dll_info *) dll_ptr)->name); | |
896 | ||
aef93bd7 DE |
897 | document = malloc (total_len); |
898 | if (document == NULL) | |
899 | { | |
900 | write_enn (own_buf); | |
901 | return; | |
902 | } | |
255e7678 DJ |
903 | strcpy (document, "<library-list>\n"); |
904 | p = document + strlen (document); | |
905 | ||
906 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
907 | { | |
908 | struct dll_info *dll = (struct dll_info *) dll_ptr; | |
909 | char *name; | |
910 | ||
911 | strcpy (p, " <library name=\""); | |
912 | p = p + strlen (p); | |
913 | name = xml_escape_text (dll->name); | |
914 | strcpy (p, name); | |
915 | free (name); | |
916 | p = p + strlen (p); | |
917 | strcpy (p, "\"><segment address=\""); | |
918 | p = p + strlen (p); | |
919 | sprintf (p, "0x%lx", (long) dll->base_addr); | |
920 | p = p + strlen (p); | |
921 | strcpy (p, "\"/></library>\n"); | |
922 | p = p + strlen (p); | |
923 | } | |
924 | ||
925 | strcpy (p, "</library-list>\n"); | |
926 | ||
927 | total_len = strlen (document); | |
928 | if (len > PBUFSIZ - 2) | |
929 | len = PBUFSIZ - 2; | |
930 | ||
931 | if (ofs > total_len) | |
932 | write_enn (own_buf); | |
933 | else if (len < total_len - ofs) | |
934 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
935 | len, 1); | |
936 | else | |
937 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
938 | total_len - ofs, 0); | |
939 | ||
940 | free (document); | |
941 | return; | |
942 | } | |
943 | ||
07e059b5 VP |
944 | if (the_target->qxfer_osdata != NULL |
945 | && strncmp ("qXfer:osdata:read:", own_buf, 18) == 0) | |
946 | { | |
947 | char *annex; | |
948 | int n; | |
949 | unsigned int len; | |
950 | CORE_ADDR ofs; | |
951 | unsigned char *workbuf; | |
952 | ||
953 | strcpy (own_buf, "E00"); | |
954 | if (decode_xfer_read (own_buf + 18, &annex, &ofs, &len) < 0) | |
78e5cee6 | 955 | return; |
07e059b5 | 956 | if (len > PBUFSIZ - 2) |
78e5cee6 | 957 | len = PBUFSIZ - 2; |
aef93bd7 | 958 | workbuf = malloc (len + 1); |
07e059b5 | 959 | if (!workbuf) |
1b3f6016 | 960 | return; |
07e059b5 VP |
961 | |
962 | n = (*the_target->qxfer_osdata) (annex, workbuf, NULL, ofs, len + 1); | |
963 | if (n < 0) | |
78e5cee6 | 964 | write_enn (own_buf); |
07e059b5 | 965 | else if (n > len) |
78e5cee6 | 966 | *new_packet_len_p = write_qxfer_response (own_buf, workbuf, len, 1); |
07e059b5 | 967 | else |
78e5cee6 | 968 | *new_packet_len_p = write_qxfer_response (own_buf, workbuf, n, 0); |
07e059b5 VP |
969 | |
970 | free (workbuf); | |
971 | return; | |
972 | } | |
973 | ||
4aa995e1 PA |
974 | if (the_target->qxfer_siginfo != NULL |
975 | && strncmp ("qXfer:siginfo:read:", own_buf, 19) == 0) | |
976 | { | |
977 | unsigned char *data; | |
978 | int n; | |
979 | CORE_ADDR ofs; | |
980 | unsigned int len; | |
981 | char *annex; | |
982 | ||
983 | require_running (own_buf); | |
984 | ||
985 | /* Reject any annex; grab the offset and length. */ | |
986 | if (decode_xfer_read (own_buf + 19, &annex, &ofs, &len) < 0 | |
987 | || annex[0] != '\0') | |
988 | { | |
989 | strcpy (own_buf, "E00"); | |
990 | return; | |
991 | } | |
992 | ||
993 | /* Read one extra byte, as an indicator of whether there is | |
994 | more. */ | |
995 | if (len > PBUFSIZ - 2) | |
996 | len = PBUFSIZ - 2; | |
997 | data = malloc (len + 1); | |
998 | if (!data) | |
1b3f6016 | 999 | return; |
4aa995e1 PA |
1000 | n = (*the_target->qxfer_siginfo) (annex, data, NULL, ofs, len + 1); |
1001 | if (n < 0) | |
1002 | write_enn (own_buf); | |
1003 | else if (n > len) | |
1004 | *new_packet_len_p = write_qxfer_response (own_buf, data, len, 1); | |
1005 | else | |
1006 | *new_packet_len_p = write_qxfer_response (own_buf, data, n, 0); | |
1007 | ||
1008 | free (data); | |
1009 | return; | |
1010 | } | |
1011 | ||
1012 | if (the_target->qxfer_siginfo != NULL | |
1013 | && strncmp ("qXfer:siginfo:write:", own_buf, 20) == 0) | |
1014 | { | |
1015 | char *annex; | |
1016 | int n; | |
1017 | unsigned int len; | |
1018 | CORE_ADDR ofs; | |
1019 | unsigned char *data; | |
1020 | ||
1021 | require_running (own_buf); | |
1022 | ||
1023 | strcpy (own_buf, "E00"); | |
1024 | data = malloc (packet_len - 19); | |
1025 | if (!data) | |
1b3f6016 | 1026 | return; |
4aa995e1 PA |
1027 | if (decode_xfer_write (own_buf + 20, packet_len - 20, &annex, |
1028 | &ofs, &len, data) < 0) | |
1029 | { | |
1030 | free (data); | |
1031 | return; | |
1032 | } | |
1033 | ||
1034 | n = (*the_target->qxfer_siginfo) | |
1035 | (annex, NULL, (unsigned const char *)data, ofs, len); | |
1036 | if (n < 0) | |
1037 | write_enn (own_buf); | |
1038 | else | |
1039 | sprintf (own_buf, "%x", n); | |
1040 | ||
1041 | free (data); | |
1042 | return; | |
1043 | } | |
1044 | ||
be2a5f71 DJ |
1045 | /* Protocol features query. */ |
1046 | if (strncmp ("qSupported", own_buf, 10) == 0 | |
1047 | && (own_buf[10] == ':' || own_buf[10] == '\0')) | |
1048 | { | |
89be2091 | 1049 | sprintf (own_buf, "PacketSize=%x;QPassSignals+", PBUFSIZ - 1); |
0876f84a | 1050 | |
255e7678 DJ |
1051 | /* We do not have any hook to indicate whether the target backend |
1052 | supports qXfer:libraries:read, so always report it. */ | |
1053 | strcat (own_buf, ";qXfer:libraries:read+"); | |
1054 | ||
0876f84a | 1055 | if (the_target->read_auxv != NULL) |
9f2e1e63 | 1056 | strcat (own_buf, ";qXfer:auxv:read+"); |
2d717e4f | 1057 | |
0e7f50da UW |
1058 | if (the_target->qxfer_spu != NULL) |
1059 | strcat (own_buf, ";qXfer:spu:read+;qXfer:spu:write+"); | |
0876f84a | 1060 | |
4aa995e1 PA |
1061 | if (the_target->qxfer_siginfo != NULL) |
1062 | strcat (own_buf, ";qXfer:siginfo:read+;qXfer:siginfo:write+"); | |
1063 | ||
221c031f UW |
1064 | /* We always report qXfer:features:read, as targets may |
1065 | install XML files on a subsequent call to arch_setup. | |
1066 | If we reported to GDB on startup that we don't support | |
1067 | qXfer:feature:read at all, we will never be re-queried. */ | |
1068 | strcat (own_buf, ";qXfer:features:read+"); | |
23181151 | 1069 | |
a6f3e723 SL |
1070 | if (transport_is_reliable) |
1071 | strcat (own_buf, ";QStartNoAckMode+"); | |
07e059b5 VP |
1072 | |
1073 | if (the_target->qxfer_osdata != NULL) | |
1b3f6016 | 1074 | strcat (own_buf, ";qXfer:osdata:read+"); |
07e059b5 | 1075 | |
bd99dc85 PA |
1076 | if (target_supports_non_stop ()) |
1077 | strcat (own_buf, ";QNonStop+"); | |
1078 | ||
be2a5f71 DJ |
1079 | return; |
1080 | } | |
1081 | ||
dae5f5cf DJ |
1082 | /* Thread-local storage support. */ |
1083 | if (the_target->get_tls_address != NULL | |
1084 | && strncmp ("qGetTLSAddr:", own_buf, 12) == 0) | |
1085 | { | |
1086 | char *p = own_buf + 12; | |
5b1c542e | 1087 | CORE_ADDR parts[2], address = 0; |
dae5f5cf | 1088 | int i, err; |
bd99dc85 | 1089 | unsigned long ptid = 0; |
dae5f5cf | 1090 | |
2d717e4f DJ |
1091 | require_running (own_buf); |
1092 | ||
dae5f5cf DJ |
1093 | for (i = 0; i < 3; i++) |
1094 | { | |
1095 | char *p2; | |
1096 | int len; | |
1097 | ||
1098 | if (p == NULL) | |
1099 | break; | |
1100 | ||
1101 | p2 = strchr (p, ','); | |
1102 | if (p2) | |
1103 | { | |
1104 | len = p2 - p; | |
1105 | p2++; | |
1106 | } | |
1107 | else | |
1108 | { | |
1109 | len = strlen (p); | |
1110 | p2 = NULL; | |
1111 | } | |
1112 | ||
5b1c542e PA |
1113 | if (i == 0) |
1114 | ptid = strtoul (p, NULL, 16); | |
1115 | else | |
1116 | decode_address (&parts[i - 1], p, len); | |
dae5f5cf DJ |
1117 | p = p2; |
1118 | } | |
1119 | ||
1120 | if (p != NULL || i < 3) | |
1121 | err = 1; | |
1122 | else | |
1123 | { | |
5b1c542e | 1124 | struct thread_info *thread = gdb_id_to_thread (ptid); |
dae5f5cf DJ |
1125 | |
1126 | if (thread == NULL) | |
1127 | err = 2; | |
1128 | else | |
5b1c542e | 1129 | err = the_target->get_tls_address (thread, parts[0], parts[1], |
dae5f5cf DJ |
1130 | &address); |
1131 | } | |
1132 | ||
1133 | if (err == 0) | |
1134 | { | |
1135 | sprintf (own_buf, "%llx", address); | |
1136 | return; | |
1137 | } | |
1138 | else if (err > 0) | |
1139 | { | |
1140 | write_enn (own_buf); | |
1141 | return; | |
1142 | } | |
1143 | ||
1144 | /* Otherwise, pretend we do not understand this packet. */ | |
1145 | } | |
1146 | ||
c74d0ad8 DJ |
1147 | /* Handle "monitor" commands. */ |
1148 | if (strncmp ("qRcmd,", own_buf, 6) == 0) | |
1149 | { | |
aef93bd7 | 1150 | char *mon = malloc (PBUFSIZ); |
c74d0ad8 DJ |
1151 | int len = strlen (own_buf + 6); |
1152 | ||
aef93bd7 DE |
1153 | if (mon == NULL) |
1154 | { | |
1155 | write_enn (own_buf); | |
1156 | return; | |
1157 | } | |
1158 | ||
d41b6bb4 | 1159 | if ((len % 2) != 0 || unhexify (mon, own_buf + 6, len / 2) != len / 2) |
c74d0ad8 DJ |
1160 | { |
1161 | write_enn (own_buf); | |
1162 | free (mon); | |
1163 | return; | |
1164 | } | |
1165 | mon[len / 2] = '\0'; | |
1166 | ||
1167 | write_ok (own_buf); | |
1168 | ||
1169 | if (strcmp (mon, "set debug 1") == 0) | |
1170 | { | |
1171 | debug_threads = 1; | |
1172 | monitor_output ("Debug output enabled.\n"); | |
1173 | } | |
1174 | else if (strcmp (mon, "set debug 0") == 0) | |
1175 | { | |
1176 | debug_threads = 0; | |
1177 | monitor_output ("Debug output disabled.\n"); | |
1178 | } | |
1179 | else if (strcmp (mon, "set remote-debug 1") == 0) | |
1180 | { | |
1181 | remote_debug = 1; | |
1182 | monitor_output ("Protocol debug output enabled.\n"); | |
1183 | } | |
1184 | else if (strcmp (mon, "set remote-debug 0") == 0) | |
1185 | { | |
1186 | remote_debug = 0; | |
1187 | monitor_output ("Protocol debug output disabled.\n"); | |
1188 | } | |
1189 | else if (strcmp (mon, "help") == 0) | |
1190 | monitor_show_help (); | |
2d717e4f DJ |
1191 | else if (strcmp (mon, "exit") == 0) |
1192 | exit_requested = 1; | |
c74d0ad8 DJ |
1193 | else |
1194 | { | |
1195 | monitor_output ("Unknown monitor command.\n\n"); | |
1196 | monitor_show_help (); | |
1197 | write_enn (own_buf); | |
1198 | } | |
1199 | ||
1200 | free (mon); | |
1201 | return; | |
1202 | } | |
1203 | ||
08388c79 DE |
1204 | if (strncmp ("qSearch:memory:", own_buf, sizeof ("qSearch:memory:") - 1) == 0) |
1205 | { | |
1206 | require_running (own_buf); | |
1207 | handle_search_memory (own_buf, packet_len); | |
1208 | return; | |
1209 | } | |
1210 | ||
0b16c5cf PA |
1211 | if (strcmp (own_buf, "qAttached") == 0) |
1212 | { | |
1213 | require_running (own_buf); | |
1214 | strcpy (own_buf, attached ? "1" : "0"); | |
1215 | return; | |
1216 | } | |
1217 | ||
ce3a066d DJ |
1218 | /* Otherwise we didn't know what packet it was. Say we didn't |
1219 | understand it. */ | |
1220 | own_buf[0] = 0; | |
1221 | } | |
1222 | ||
64386c31 DJ |
1223 | /* Parse vCont packets. */ |
1224 | void | |
5b1c542e | 1225 | handle_v_cont (char *own_buf) |
64386c31 DJ |
1226 | { |
1227 | char *p, *q; | |
1228 | int n = 0, i = 0; | |
2bd7c093 PA |
1229 | struct thread_resume *resume_info; |
1230 | struct thread_resume default_action = {0}; | |
64386c31 DJ |
1231 | |
1232 | /* Count the number of semicolons in the packet. There should be one | |
1233 | for every action. */ | |
1234 | p = &own_buf[5]; | |
1235 | while (p) | |
1236 | { | |
1237 | n++; | |
1238 | p++; | |
1239 | p = strchr (p, ';'); | |
1240 | } | |
2bd7c093 PA |
1241 | |
1242 | resume_info = malloc (n * sizeof (resume_info[0])); | |
aef93bd7 DE |
1243 | if (resume_info == NULL) |
1244 | goto err; | |
64386c31 | 1245 | |
64386c31 | 1246 | p = &own_buf[5]; |
64386c31 DJ |
1247 | while (*p) |
1248 | { | |
1249 | p++; | |
1250 | ||
64386c31 | 1251 | if (p[0] == 's' || p[0] == 'S') |
bd99dc85 | 1252 | resume_info[i].kind = resume_step; |
64386c31 | 1253 | else if (p[0] == 'c' || p[0] == 'C') |
bd99dc85 PA |
1254 | resume_info[i].kind = resume_continue; |
1255 | else if (p[0] == 't') | |
1256 | resume_info[i].kind = resume_stop; | |
64386c31 DJ |
1257 | else |
1258 | goto err; | |
1259 | ||
1260 | if (p[0] == 'S' || p[0] == 'C') | |
1261 | { | |
1262 | int sig; | |
1263 | sig = strtol (p + 1, &q, 16); | |
1264 | if (p == q) | |
1265 | goto err; | |
1266 | p = q; | |
1267 | ||
1268 | if (!target_signal_to_host_p (sig)) | |
1269 | goto err; | |
1270 | resume_info[i].sig = target_signal_to_host (sig); | |
1271 | } | |
1272 | else | |
1273 | { | |
1274 | resume_info[i].sig = 0; | |
1275 | p = p + 1; | |
1276 | } | |
1277 | ||
1278 | if (p[0] == 0) | |
1279 | { | |
1280 | resume_info[i].thread = -1; | |
1281 | default_action = resume_info[i]; | |
1282 | ||
1283 | /* Note: we don't increment i here, we'll overwrite this entry | |
1284 | the next time through. */ | |
1285 | } | |
1286 | else if (p[0] == ':') | |
1287 | { | |
a06660f7 DJ |
1288 | unsigned int gdb_id = strtoul (p + 1, &q, 16); |
1289 | unsigned long thread_id; | |
1290 | ||
64386c31 DJ |
1291 | if (p == q) |
1292 | goto err; | |
1293 | p = q; | |
1294 | if (p[0] != ';' && p[0] != 0) | |
1295 | goto err; | |
1296 | ||
a06660f7 DJ |
1297 | thread_id = gdb_id_to_thread_id (gdb_id); |
1298 | if (thread_id) | |
1299 | resume_info[i].thread = thread_id; | |
1300 | else | |
1301 | goto err; | |
1302 | ||
64386c31 DJ |
1303 | i++; |
1304 | } | |
1305 | } | |
1306 | ||
2bd7c093 PA |
1307 | if (i < n) |
1308 | resume_info[i] = default_action; | |
64386c31 DJ |
1309 | |
1310 | /* Still used in occasional places in the backend. */ | |
bd99dc85 PA |
1311 | if (n == 1 |
1312 | && resume_info[0].thread != -1 | |
1313 | && resume_info[0].kind != resume_stop) | |
64386c31 DJ |
1314 | cont_thread = resume_info[0].thread; |
1315 | else | |
1316 | cont_thread = -1; | |
dc3f8883 | 1317 | set_desired_inferior (0); |
64386c31 | 1318 | |
bd99dc85 PA |
1319 | if (!non_stop) |
1320 | enable_async_io (); | |
1321 | ||
2bd7c093 | 1322 | (*the_target->resume) (resume_info, n); |
64386c31 DJ |
1323 | |
1324 | free (resume_info); | |
1325 | ||
bd99dc85 PA |
1326 | if (non_stop) |
1327 | write_ok (own_buf); | |
1328 | else | |
1329 | { | |
1330 | last_ptid = mywait (&last_status, 0, 1); | |
1331 | prepare_resume_reply (own_buf, last_ptid, &last_status); | |
1332 | disable_async_io (); | |
1333 | } | |
64386c31 DJ |
1334 | return; |
1335 | ||
1336 | err: | |
255e7678 | 1337 | write_enn (own_buf); |
64386c31 DJ |
1338 | free (resume_info); |
1339 | return; | |
1340 | } | |
1341 | ||
2d717e4f DJ |
1342 | /* Attach to a new program. Return 1 if successful, 0 if failure. */ |
1343 | int | |
5b1c542e | 1344 | handle_v_attach (char *own_buf) |
2d717e4f DJ |
1345 | { |
1346 | int pid; | |
1347 | ||
1348 | pid = strtol (own_buf + 8, NULL, 16); | |
5b1c542e | 1349 | if (pid != 0 && attach_inferior (pid) == 0) |
2d717e4f | 1350 | { |
aeba519e PA |
1351 | /* Don't report shared library events after attaching, even if |
1352 | some libraries are preloaded. GDB will always poll the | |
1353 | library list. Avoids the "stopped by shared library event" | |
1354 | notice on the GDB side. */ | |
1355 | dlls_changed = 0; | |
bd99dc85 PA |
1356 | |
1357 | if (non_stop) | |
1358 | { | |
1359 | /* In non-stop, we don't send a resume reply. Stop events | |
1360 | will follow up using the normal notification | |
1361 | mechanism. */ | |
1362 | write_ok (own_buf); | |
1363 | } | |
1364 | else | |
1365 | prepare_resume_reply (own_buf, last_ptid, &last_status); | |
1366 | ||
2d717e4f DJ |
1367 | return 1; |
1368 | } | |
1369 | else | |
1370 | { | |
1371 | write_enn (own_buf); | |
1372 | return 0; | |
1373 | } | |
1374 | } | |
1375 | ||
1376 | /* Run a new program. Return 1 if successful, 0 if failure. */ | |
1377 | static int | |
5b1c542e | 1378 | handle_v_run (char *own_buf) |
2d717e4f | 1379 | { |
aef93bd7 | 1380 | char *p, *next_p, **new_argv; |
2d717e4f DJ |
1381 | int i, new_argc; |
1382 | ||
1383 | new_argc = 0; | |
1384 | for (p = own_buf + strlen ("vRun;"); p && *p; p = strchr (p, ';')) | |
1385 | { | |
1386 | p++; | |
1387 | new_argc++; | |
1388 | } | |
1389 | ||
aef93bd7 DE |
1390 | new_argv = calloc (new_argc + 2, sizeof (char *)); |
1391 | if (new_argv == NULL) | |
1392 | { | |
1393 | write_enn (own_buf); | |
1394 | return 0; | |
1395 | } | |
1396 | ||
2d717e4f DJ |
1397 | i = 0; |
1398 | for (p = own_buf + strlen ("vRun;"); *p; p = next_p) | |
1399 | { | |
1400 | next_p = strchr (p, ';'); | |
1401 | if (next_p == NULL) | |
1402 | next_p = p + strlen (p); | |
1403 | ||
1404 | if (i == 0 && p == next_p) | |
1405 | new_argv[i] = NULL; | |
1406 | else | |
1407 | { | |
aef93bd7 | 1408 | /* FIXME: Fail request if out of memory instead of dying. */ |
bca929d3 | 1409 | new_argv[i] = xmalloc (1 + (next_p - p) / 2); |
2d717e4f DJ |
1410 | unhexify (new_argv[i], p, (next_p - p) / 2); |
1411 | new_argv[i][(next_p - p) / 2] = '\0'; | |
1412 | } | |
1413 | ||
1414 | if (*next_p) | |
1415 | next_p++; | |
1416 | i++; | |
1417 | } | |
1418 | new_argv[i] = NULL; | |
1419 | ||
1420 | if (new_argv[0] == NULL) | |
1421 | { | |
f142445f DJ |
1422 | /* GDB didn't specify a program to run. Use the program from the |
1423 | last run with the new argument list. */ | |
9b710a42 | 1424 | |
2d717e4f DJ |
1425 | if (program_argv == NULL) |
1426 | { | |
aef93bd7 | 1427 | /* FIXME: new_argv memory leak */ |
2d717e4f DJ |
1428 | write_enn (own_buf); |
1429 | return 0; | |
1430 | } | |
1431 | ||
aef93bd7 DE |
1432 | new_argv[0] = strdup (program_argv[0]); |
1433 | if (new_argv[0] == NULL) | |
1434 | { | |
1435 | /* FIXME: new_argv memory leak */ | |
1436 | write_enn (own_buf); | |
1437 | return 0; | |
1b3f6016 | 1438 | } |
2d717e4f | 1439 | } |
f142445f | 1440 | |
aef93bd7 DE |
1441 | /* Free the old argv and install the new one. */ |
1442 | freeargv (program_argv); | |
f142445f | 1443 | program_argv = new_argv; |
2d717e4f | 1444 | |
5b1c542e PA |
1445 | start_inferior (program_argv); |
1446 | if (last_status.kind == TARGET_WAITKIND_STOPPED) | |
2d717e4f | 1447 | { |
5b1c542e | 1448 | prepare_resume_reply (own_buf, last_ptid, &last_status); |
bd99dc85 PA |
1449 | |
1450 | /* In non-stop, sending a resume reply doesn't set the general | |
1451 | thread, but GDB assumes a vRun sets it (this is so GDB can | |
1452 | query which is the main thread of the new inferior. */ | |
1453 | if (non_stop) | |
1454 | general_thread = last_ptid; | |
1455 | ||
2d717e4f DJ |
1456 | return 1; |
1457 | } | |
1458 | else | |
1459 | { | |
1460 | write_enn (own_buf); | |
1461 | return 0; | |
1462 | } | |
1463 | } | |
1464 | ||
bd99dc85 PA |
1465 | /* Handle a 'vStopped' packet. */ |
1466 | static void | |
1467 | handle_v_stopped (char *own_buf) | |
1468 | { | |
1469 | /* If we're waiting for GDB to acknowledge a pending stop reply, | |
1470 | consider that done. */ | |
1471 | if (notif_queue) | |
1472 | { | |
1473 | struct vstop_notif *head; | |
1474 | ||
1475 | if (remote_debug) | |
1476 | fprintf (stderr, "vStopped: acking %ld\n", notif_queue->ptid); | |
1477 | ||
1478 | head = notif_queue; | |
1479 | notif_queue = notif_queue->next; | |
1480 | free (head); | |
1481 | } | |
1482 | ||
1483 | /* Push another stop reply, or if there are no more left, an OK. */ | |
1484 | send_next_stop_reply (own_buf); | |
1485 | } | |
1486 | ||
64386c31 DJ |
1487 | /* Handle all of the extended 'v' packets. */ |
1488 | void | |
5b1c542e | 1489 | handle_v_requests (char *own_buf, int packet_len, int *new_packet_len) |
64386c31 | 1490 | { |
db42f210 | 1491 | if (!disable_packet_vCont) |
64386c31 | 1492 | { |
db42f210 PA |
1493 | if (strncmp (own_buf, "vCont;", 6) == 0) |
1494 | { | |
1495 | require_running (own_buf); | |
5b1c542e | 1496 | handle_v_cont (own_buf); |
db42f210 PA |
1497 | return; |
1498 | } | |
64386c31 | 1499 | |
db42f210 PA |
1500 | if (strncmp (own_buf, "vCont?", 6) == 0) |
1501 | { | |
bd99dc85 | 1502 | strcpy (own_buf, "vCont;c;C;s;S;t"); |
db42f210 PA |
1503 | return; |
1504 | } | |
64386c31 DJ |
1505 | } |
1506 | ||
a6b151f1 DJ |
1507 | if (strncmp (own_buf, "vFile:", 6) == 0 |
1508 | && handle_vFile (own_buf, packet_len, new_packet_len)) | |
1509 | return; | |
1510 | ||
2d717e4f DJ |
1511 | if (strncmp (own_buf, "vAttach;", 8) == 0) |
1512 | { | |
1513 | if (target_running ()) | |
1514 | { | |
fd96d250 PA |
1515 | fprintf (stderr, "Already debugging a process\n"); |
1516 | write_enn (own_buf); | |
1517 | return; | |
2d717e4f | 1518 | } |
5b1c542e | 1519 | handle_v_attach (own_buf); |
2d717e4f DJ |
1520 | return; |
1521 | } | |
1522 | ||
1523 | if (strncmp (own_buf, "vRun;", 5) == 0) | |
1524 | { | |
1525 | if (target_running ()) | |
1526 | { | |
fd96d250 PA |
1527 | fprintf (stderr, "Already debugging a process\n"); |
1528 | write_enn (own_buf); | |
1529 | return; | |
2d717e4f | 1530 | } |
5b1c542e | 1531 | handle_v_run (own_buf); |
2d717e4f DJ |
1532 | return; |
1533 | } | |
1534 | ||
bd99dc85 PA |
1535 | if (strncmp (own_buf, "vStopped", 8) == 0) |
1536 | { | |
1537 | handle_v_stopped (own_buf); | |
1538 | return; | |
1539 | } | |
1540 | ||
64386c31 DJ |
1541 | /* Otherwise we didn't know what packet it was. Say we didn't |
1542 | understand it. */ | |
1543 | own_buf[0] = 0; | |
1544 | return; | |
1545 | } | |
1546 | ||
bd99dc85 PA |
1547 | /* Resume inferior and wait for another event. In non-stop mode, |
1548 | don't really wait here, but return immediatelly to the event | |
1549 | loop. */ | |
64386c31 | 1550 | void |
5b1c542e | 1551 | myresume (char *own_buf, int step, int sig) |
64386c31 DJ |
1552 | { |
1553 | struct thread_resume resume_info[2]; | |
1554 | int n = 0; | |
2bd7c093 | 1555 | int valid_cont_thread; |
a20d5e98 DJ |
1556 | |
1557 | set_desired_inferior (0); | |
64386c31 | 1558 | |
2bd7c093 PA |
1559 | valid_cont_thread = (cont_thread != 0 && cont_thread != -1); |
1560 | ||
1561 | if (step || sig || valid_cont_thread) | |
64386c31 DJ |
1562 | { |
1563 | resume_info[0].thread | |
1564 | = ((struct inferior_list_entry *) current_inferior)->id; | |
bd99dc85 PA |
1565 | if (step) |
1566 | resume_info[0].kind = resume_step; | |
1567 | else | |
1568 | resume_info[0].kind = resume_continue; | |
64386c31 | 1569 | resume_info[0].sig = sig; |
64386c31 DJ |
1570 | n++; |
1571 | } | |
2bd7c093 PA |
1572 | |
1573 | if (!valid_cont_thread) | |
1574 | { | |
1575 | resume_info[n].thread = -1; | |
bd99dc85 | 1576 | resume_info[n].kind = resume_continue; |
2bd7c093 PA |
1577 | resume_info[n].sig = 0; |
1578 | n++; | |
1579 | } | |
64386c31 | 1580 | |
bd99dc85 PA |
1581 | if (!non_stop) |
1582 | enable_async_io (); | |
1583 | ||
2bd7c093 | 1584 | (*the_target->resume) (resume_info, n); |
bd99dc85 PA |
1585 | |
1586 | if (non_stop) | |
1587 | write_ok (own_buf); | |
1588 | else | |
1589 | { | |
1590 | last_ptid = mywait (&last_status, 0, 1); | |
1591 | prepare_resume_reply (own_buf, last_ptid, &last_status); | |
1592 | disable_async_io (); | |
1593 | } | |
1594 | } | |
1595 | ||
1596 | /* Callback for for_each_inferior. Make a new stop reply for each | |
1597 | stopped thread. */ | |
1598 | ||
1599 | static void | |
1600 | queue_stop_reply_callback (struct inferior_list_entry *entry) | |
1601 | { | |
1602 | struct target_waitstatus status; | |
1603 | ||
1604 | status.kind = TARGET_WAITKIND_STOPPED; | |
1605 | status.value.sig = TARGET_SIGNAL_TRAP; | |
1606 | ||
1607 | /* Pass the last stop reply back to GDB, but don't notify. */ | |
1608 | queue_stop_reply (entry->id, &status); | |
64386c31 DJ |
1609 | } |
1610 | ||
5b1c542e PA |
1611 | /* Status handler for the '?' packet. */ |
1612 | ||
1613 | static void | |
1614 | handle_status (char *own_buf) | |
1615 | { | |
bd99dc85 PA |
1616 | struct target_waitstatus status; |
1617 | status.kind = TARGET_WAITKIND_STOPPED; | |
1618 | status.value.sig = TARGET_SIGNAL_TRAP; | |
1619 | ||
1620 | /* In non-stop mode, we must send a stop reply for each stopped | |
1621 | thread. In all-stop mode, just send one for the first stopped | |
1622 | thread we find. */ | |
1623 | ||
1624 | if (non_stop) | |
1625 | { | |
1626 | discard_queued_stop_replies (); | |
1627 | for_each_inferior (&all_threads, queue_stop_reply_callback); | |
1628 | ||
1629 | /* The first is sent immediatly. OK is sent if there is no | |
1630 | stopped thread, which is the same handling of the vStopped | |
1631 | packet (by design). */ | |
1632 | send_next_stop_reply (own_buf); | |
1633 | } | |
5b1c542e | 1634 | else |
bd99dc85 PA |
1635 | { |
1636 | if (all_threads.head) | |
1637 | prepare_resume_reply (own_buf, | |
1638 | all_threads.head->id, &status); | |
1639 | else | |
1640 | strcpy (own_buf, "W00"); | |
1641 | } | |
5b1c542e PA |
1642 | } |
1643 | ||
dd24457d DJ |
1644 | static void |
1645 | gdbserver_version (void) | |
1646 | { | |
c16158bc | 1647 | printf ("GNU gdbserver %s%s\n" |
ff703abe | 1648 | "Copyright (C) 2009 Free Software Foundation, Inc.\n" |
dd24457d DJ |
1649 | "gdbserver is free software, covered by the GNU General Public License.\n" |
1650 | "This gdbserver was configured as \"%s\"\n", | |
c16158bc | 1651 | PKGVERSION, version, host_name); |
dd24457d DJ |
1652 | } |
1653 | ||
0bc68c49 | 1654 | static void |
c16158bc | 1655 | gdbserver_usage (FILE *stream) |
0bc68c49 | 1656 | { |
c16158bc JM |
1657 | fprintf (stream, "Usage:\tgdbserver [OPTIONS] COMM PROG [ARGS ...]\n" |
1658 | "\tgdbserver [OPTIONS] --attach COMM PID\n" | |
1659 | "\tgdbserver [OPTIONS] --multi COMM\n" | |
1660 | "\n" | |
1661 | "COMM may either be a tty device (for serial debugging), or \n" | |
1662 | "HOST:PORT to listen for a TCP connection.\n" | |
1663 | "\n" | |
1664 | "Options:\n" | |
62709adf PA |
1665 | " --debug Enable general debugging output.\n" |
1666 | " --remote-debug Enable remote protocol debugging output.\n" | |
1667 | " --version Display version information and exit.\n" | |
1668 | " --wrapper WRAPPER -- Run WRAPPER to start new programs.\n"); | |
c16158bc JM |
1669 | if (REPORT_BUGS_TO[0] && stream == stdout) |
1670 | fprintf (stream, "Report bugs to \"%s\".\n", REPORT_BUGS_TO); | |
0bc68c49 DJ |
1671 | } |
1672 | ||
db42f210 PA |
1673 | static void |
1674 | gdbserver_show_disableable (FILE *stream) | |
1675 | { | |
1676 | fprintf (stream, "Disableable packets:\n" | |
1677 | " vCont \tAll vCont packets\n" | |
1678 | " qC \tQuerying the current thread\n" | |
1679 | " qfThreadInfo\tThread listing\n" | |
1680 | " Tthread \tPassing the thread specifier in the T stop reply packet\n" | |
1681 | " threads \tAll of the above\n"); | |
1682 | } | |
1683 | ||
1684 | ||
2d717e4f DJ |
1685 | #undef require_running |
1686 | #define require_running(BUF) \ | |
1687 | if (!target_running ()) \ | |
1688 | { \ | |
1689 | write_enn (BUF); \ | |
1690 | break; \ | |
1691 | } | |
1692 | ||
c906108c | 1693 | int |
da85418c | 1694 | main (int argc, char *argv[]) |
c906108c | 1695 | { |
0729219d DJ |
1696 | int bad_attach; |
1697 | int pid; | |
2d717e4f DJ |
1698 | char *arg_end, *port; |
1699 | char **next_arg = &argv[1]; | |
1700 | int multi_mode = 0; | |
1701 | int attach = 0; | |
1702 | int was_running; | |
c906108c | 1703 | |
2d717e4f | 1704 | while (*next_arg != NULL && **next_arg == '-') |
dd24457d | 1705 | { |
2d717e4f DJ |
1706 | if (strcmp (*next_arg, "--version") == 0) |
1707 | { | |
1708 | gdbserver_version (); | |
1709 | exit (0); | |
1710 | } | |
1711 | else if (strcmp (*next_arg, "--help") == 0) | |
1712 | { | |
c16158bc | 1713 | gdbserver_usage (stdout); |
2d717e4f DJ |
1714 | exit (0); |
1715 | } | |
1716 | else if (strcmp (*next_arg, "--attach") == 0) | |
1717 | attach = 1; | |
1718 | else if (strcmp (*next_arg, "--multi") == 0) | |
1719 | multi_mode = 1; | |
ccd213ac DJ |
1720 | else if (strcmp (*next_arg, "--wrapper") == 0) |
1721 | { | |
1722 | next_arg++; | |
1723 | ||
1724 | wrapper_argv = next_arg; | |
1725 | while (*next_arg != NULL && strcmp (*next_arg, "--") != 0) | |
1726 | next_arg++; | |
1727 | ||
1728 | if (next_arg == wrapper_argv || *next_arg == NULL) | |
1729 | { | |
c16158bc | 1730 | gdbserver_usage (stderr); |
ccd213ac DJ |
1731 | exit (1); |
1732 | } | |
1733 | ||
1734 | /* Consume the "--". */ | |
1735 | *next_arg = NULL; | |
1736 | } | |
2d717e4f DJ |
1737 | else if (strcmp (*next_arg, "--debug") == 0) |
1738 | debug_threads = 1; | |
62709adf PA |
1739 | else if (strcmp (*next_arg, "--remote-debug") == 0) |
1740 | remote_debug = 1; | |
db42f210 PA |
1741 | else if (strcmp (*next_arg, "--disable-packet") == 0) |
1742 | { | |
1743 | gdbserver_show_disableable (stdout); | |
1744 | exit (0); | |
1745 | } | |
1746 | else if (strncmp (*next_arg, | |
1747 | "--disable-packet=", | |
1748 | sizeof ("--disable-packet=") - 1) == 0) | |
1749 | { | |
1750 | char *packets, *tok; | |
1751 | ||
1752 | packets = *next_arg += sizeof ("--disable-packet=") - 1; | |
1753 | for (tok = strtok (packets, ","); | |
1754 | tok != NULL; | |
1755 | tok = strtok (NULL, ",")) | |
1756 | { | |
1757 | if (strcmp ("vCont", tok) == 0) | |
1758 | disable_packet_vCont = 1; | |
1759 | else if (strcmp ("Tthread", tok) == 0) | |
1760 | disable_packet_Tthread = 1; | |
1761 | else if (strcmp ("qC", tok) == 0) | |
1762 | disable_packet_qC = 1; | |
1763 | else if (strcmp ("qfThreadInfo", tok) == 0) | |
1764 | disable_packet_qfThreadInfo = 1; | |
1765 | else if (strcmp ("threads", tok) == 0) | |
1766 | { | |
1767 | disable_packet_vCont = 1; | |
1768 | disable_packet_Tthread = 1; | |
1769 | disable_packet_qC = 1; | |
1770 | disable_packet_qfThreadInfo = 1; | |
1771 | } | |
1772 | else | |
1773 | { | |
1774 | fprintf (stderr, "Don't know how to disable \"%s\".\n\n", | |
1775 | tok); | |
1776 | gdbserver_show_disableable (stderr); | |
1777 | exit (1); | |
1778 | } | |
1779 | } | |
1780 | } | |
2d717e4f DJ |
1781 | else |
1782 | { | |
1783 | fprintf (stderr, "Unknown argument: %s\n", *next_arg); | |
1784 | exit (1); | |
1785 | } | |
dd24457d | 1786 | |
2d717e4f DJ |
1787 | next_arg++; |
1788 | continue; | |
dd24457d DJ |
1789 | } |
1790 | ||
c5aa993b | 1791 | if (setjmp (toplevel)) |
c906108c | 1792 | { |
c5aa993b JM |
1793 | fprintf (stderr, "Exiting\n"); |
1794 | exit (1); | |
c906108c SS |
1795 | } |
1796 | ||
2d717e4f DJ |
1797 | port = *next_arg; |
1798 | next_arg++; | |
1799 | if (port == NULL || (!attach && !multi_mode && *next_arg == NULL)) | |
1800 | { | |
c16158bc | 1801 | gdbserver_usage (stderr); |
2d717e4f DJ |
1802 | exit (1); |
1803 | } | |
1804 | ||
0729219d DJ |
1805 | bad_attach = 0; |
1806 | pid = 0; | |
2d717e4f DJ |
1807 | |
1808 | /* --attach used to come after PORT, so allow it there for | |
1809 | compatibility. */ | |
1810 | if (*next_arg != NULL && strcmp (*next_arg, "--attach") == 0) | |
45b7b345 | 1811 | { |
2d717e4f DJ |
1812 | attach = 1; |
1813 | next_arg++; | |
45b7b345 DJ |
1814 | } |
1815 | ||
2d717e4f DJ |
1816 | if (attach |
1817 | && (*next_arg == NULL | |
1818 | || (*next_arg)[0] == '\0' | |
1819 | || (pid = strtoul (*next_arg, &arg_end, 0)) == 0 | |
1820 | || *arg_end != '\0' | |
1821 | || next_arg[1] != NULL)) | |
1822 | bad_attach = 1; | |
1823 | ||
1824 | if (bad_attach) | |
dd24457d | 1825 | { |
c16158bc | 1826 | gdbserver_usage (stderr); |
dd24457d DJ |
1827 | exit (1); |
1828 | } | |
c906108c | 1829 | |
a20d5e98 | 1830 | initialize_async_io (); |
4ce44c66 JM |
1831 | initialize_low (); |
1832 | ||
bca929d3 DE |
1833 | own_buf = xmalloc (PBUFSIZ + 1); |
1834 | mem_buf = xmalloc (PBUFSIZ); | |
0a30fbc4 | 1835 | |
2d717e4f | 1836 | if (pid == 0 && *next_arg != NULL) |
45b7b345 | 1837 | { |
2d717e4f DJ |
1838 | int i, n; |
1839 | ||
1840 | n = argc - (next_arg - argv); | |
bca929d3 | 1841 | program_argv = xmalloc (sizeof (char *) * (n + 1)); |
2d717e4f | 1842 | for (i = 0; i < n; i++) |
bca929d3 | 1843 | program_argv[i] = xstrdup (next_arg[i]); |
2d717e4f DJ |
1844 | program_argv[i] = NULL; |
1845 | ||
45b7b345 | 1846 | /* Wait till we are at first instruction in program. */ |
5b1c542e | 1847 | start_inferior (program_argv); |
c906108c | 1848 | |
c588c53c MS |
1849 | /* We are now (hopefully) stopped at the first instruction of |
1850 | the target process. This assumes that the target process was | |
1851 | successfully created. */ | |
45b7b345 | 1852 | } |
2d717e4f DJ |
1853 | else if (pid != 0) |
1854 | { | |
5b1c542e | 1855 | if (attach_inferior (pid) == -1) |
2d717e4f DJ |
1856 | error ("Attaching not supported on this target"); |
1857 | ||
1858 | /* Otherwise succeeded. */ | |
1859 | } | |
45b7b345 DJ |
1860 | else |
1861 | { | |
5b1c542e PA |
1862 | last_status.kind = TARGET_WAITKIND_EXITED; |
1863 | last_status.value.integer = 0; | |
1864 | last_ptid = -1; | |
45b7b345 | 1865 | } |
c906108c | 1866 | |
311de423 PA |
1867 | /* Don't report shared library events on the initial connection, |
1868 | even if some libraries are preloaded. Avoids the "stopped by | |
1869 | shared library event" notice on gdb side. */ | |
1870 | dlls_changed = 0; | |
1871 | ||
8264bb58 DJ |
1872 | if (setjmp (toplevel)) |
1873 | { | |
1874 | fprintf (stderr, "Killing inferior\n"); | |
1875 | kill_inferior (); | |
1876 | exit (1); | |
1877 | } | |
1878 | ||
5b1c542e PA |
1879 | if (last_status.kind == TARGET_WAITKIND_EXITED |
1880 | || last_status.kind == TARGET_WAITKIND_SIGNALLED) | |
2d717e4f DJ |
1881 | was_running = 0; |
1882 | else | |
1883 | was_running = 1; | |
1884 | ||
1885 | if (!was_running && !multi_mode) | |
c588c53c | 1886 | { |
2d717e4f | 1887 | fprintf (stderr, "No program to debug. GDBserver exiting.\n"); |
c588c53c MS |
1888 | exit (1); |
1889 | } | |
1890 | ||
c906108c SS |
1891 | while (1) |
1892 | { | |
a6f3e723 | 1893 | noack_mode = 0; |
bd99dc85 PA |
1894 | non_stop = 0; |
1895 | ||
2d717e4f | 1896 | remote_open (port); |
c906108c | 1897 | |
2d717e4f DJ |
1898 | if (setjmp (toplevel) != 0) |
1899 | { | |
1900 | /* An error occurred. */ | |
1901 | if (response_needed) | |
1902 | { | |
1903 | write_enn (own_buf); | |
1904 | putpkt (own_buf); | |
1905 | } | |
1906 | } | |
1907 | ||
bd99dc85 PA |
1908 | /* Wait for events. This will return when all event sources are |
1909 | removed from the event loop. */ | |
1910 | start_event_loop (); | |
1911 | ||
1912 | /* If an exit was requested (using the "monitor exit" command), | |
1913 | terminate now. The only other way to get here is for | |
1914 | getpkt to fail; close the connection and reopen it at the | |
1915 | top of the loop. */ | |
1916 | ||
1917 | if (exit_requested) | |
c906108c | 1918 | { |
bd99dc85 PA |
1919 | if (attached) |
1920 | detach_inferior (); | |
1921 | else | |
1922 | kill_inferior (); | |
1923 | exit (0); | |
1924 | } | |
1925 | else | |
1926 | fprintf (stderr, "Remote side has terminated connection. " | |
1927 | "GDBserver will reopen the connection.\n"); | |
1928 | } | |
1929 | } | |
01f9e8fa | 1930 | |
bd99dc85 PA |
1931 | /* Event loop callback that handles a serial event. The first byte in |
1932 | the serial buffer gets us here. We expect characters to arrive at | |
1933 | a brisk pace, so we read the rest of the packet with a blocking | |
1934 | getpkt call. */ | |
01f9e8fa | 1935 | |
bd99dc85 PA |
1936 | static void |
1937 | process_serial_event (void) | |
1938 | { | |
1939 | char ch; | |
1940 | int i = 0; | |
1941 | int signal; | |
1942 | unsigned int len; | |
1943 | CORE_ADDR mem_addr; | |
1944 | unsigned char sig; | |
1945 | int packet_len; | |
1946 | int new_packet_len = -1; | |
1947 | ||
1948 | /* Used to decide when gdbserver should exit in | |
1949 | multi-mode/remote. */ | |
1950 | static int have_ran = 0; | |
1951 | ||
1952 | if (!have_ran) | |
1953 | have_ran = target_running (); | |
1954 | ||
1955 | disable_async_io (); | |
1956 | ||
1957 | response_needed = 0; | |
1958 | packet_len = getpkt (own_buf); | |
1959 | if (packet_len <= 0) | |
1960 | { | |
1961 | target_async (0); | |
1962 | remote_close (); | |
1963 | return; | |
1964 | } | |
1965 | response_needed = 1; | |
1966 | ||
1967 | i = 0; | |
1968 | ch = own_buf[i++]; | |
1969 | switch (ch) | |
1970 | { | |
1971 | case 'q': | |
1972 | handle_query (own_buf, packet_len, &new_packet_len); | |
1973 | break; | |
1974 | case 'Q': | |
1975 | handle_general_set (own_buf); | |
1976 | break; | |
1977 | case 'D': | |
1978 | require_running (own_buf); | |
1979 | fprintf (stderr, "Detaching from inferior\n"); | |
1980 | if (detach_inferior () != 0) | |
1981 | write_enn (own_buf); | |
1982 | else | |
1983 | { | |
1984 | discard_queued_stop_replies (); | |
1985 | write_ok (own_buf); | |
1986 | ||
1987 | if (extended_protocol) | |
c906108c | 1988 | { |
bd99dc85 PA |
1989 | /* Treat this like a normal program exit. */ |
1990 | last_status.kind = TARGET_WAITKIND_EXITED; | |
1991 | last_status.value.integer = 0; | |
1992 | last_ptid = signal_pid; | |
2d717e4f | 1993 | |
bd99dc85 PA |
1994 | current_inferior = NULL; |
1995 | } | |
1996 | else | |
1997 | { | |
1998 | putpkt (own_buf); | |
1999 | remote_close (); | |
2000 | ||
2001 | /* If we are attached, then we can exit. Otherwise, we | |
2002 | need to hang around doing nothing, until the child is | |
2003 | gone. */ | |
2004 | if (!attached) | |
2005 | join_inferior (); | |
2006 | ||
2007 | exit (0); | |
2008 | } | |
2009 | } | |
2010 | break; | |
2011 | case '!': | |
2012 | extended_protocol = 1; | |
2013 | write_ok (own_buf); | |
2014 | break; | |
2015 | case '?': | |
2016 | handle_status (own_buf); | |
2017 | break; | |
2018 | case 'H': | |
2019 | if (own_buf[1] == 'c' || own_buf[1] == 'g' || own_buf[1] == 's') | |
2020 | { | |
2021 | unsigned long gdb_id, thread_id; | |
2022 | ||
2023 | require_running (own_buf); | |
2024 | gdb_id = strtoul (&own_buf[2], NULL, 16); | |
2025 | if (gdb_id == 0 || gdb_id == -1) | |
2026 | thread_id = gdb_id; | |
2027 | else | |
2028 | { | |
2029 | thread_id = gdb_id_to_thread_id (gdb_id); | |
2030 | if (thread_id == 0) | |
c906108c | 2031 | { |
a06660f7 | 2032 | write_enn (own_buf); |
c906108c SS |
2033 | break; |
2034 | } | |
c906108c SS |
2035 | } |
2036 | ||
bd99dc85 | 2037 | if (own_buf[1] == 'g') |
c906108c | 2038 | { |
bd99dc85 | 2039 | if (thread_id == 0) |
c906108c | 2040 | { |
bd99dc85 PA |
2041 | /* GDB is telling us to choose any thread. Check if |
2042 | the currently selected thread is still valid. If | |
2043 | it is not, select the first available. */ | |
2044 | struct thread_info *thread = | |
2045 | (struct thread_info *) find_inferior_id (&all_threads, | |
2046 | general_thread); | |
2047 | if (thread == NULL) | |
2048 | thread_id = all_threads.head->id; | |
c906108c | 2049 | } |
bd99dc85 PA |
2050 | |
2051 | general_thread = thread_id; | |
2052 | set_desired_inferior (1); | |
c906108c | 2053 | } |
bd99dc85 PA |
2054 | else if (own_buf[1] == 'c') |
2055 | cont_thread = thread_id; | |
2056 | else if (own_buf[1] == 's') | |
2057 | step_thread = thread_id; | |
c906108c | 2058 | |
bd99dc85 PA |
2059 | write_ok (own_buf); |
2060 | } | |
2061 | else | |
2062 | { | |
2063 | /* Silently ignore it so that gdb can extend the protocol | |
2064 | without compatibility headaches. */ | |
2065 | own_buf[0] = '\0'; | |
2d717e4f | 2066 | } |
bd99dc85 PA |
2067 | break; |
2068 | case 'g': | |
2069 | require_running (own_buf); | |
2070 | set_desired_inferior (1); | |
2071 | registers_to_string (own_buf); | |
2072 | break; | |
2073 | case 'G': | |
2074 | require_running (own_buf); | |
2075 | set_desired_inferior (1); | |
2076 | registers_from_string (&own_buf[1]); | |
2077 | write_ok (own_buf); | |
2078 | break; | |
2079 | case 'm': | |
2080 | require_running (own_buf); | |
2081 | decode_m_packet (&own_buf[1], &mem_addr, &len); | |
2082 | if (read_inferior_memory (mem_addr, mem_buf, len) == 0) | |
2083 | convert_int_to_ascii (mem_buf, own_buf, len); | |
2084 | else | |
2085 | write_enn (own_buf); | |
2086 | break; | |
2087 | case 'M': | |
2088 | require_running (own_buf); | |
2089 | decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf); | |
2090 | if (write_inferior_memory (mem_addr, mem_buf, len) == 0) | |
2091 | write_ok (own_buf); | |
2092 | else | |
2093 | write_enn (own_buf); | |
2094 | break; | |
2095 | case 'X': | |
2096 | require_running (own_buf); | |
2097 | if (decode_X_packet (&own_buf[1], packet_len - 1, | |
2098 | &mem_addr, &len, mem_buf) < 0 | |
2099 | || write_inferior_memory (mem_addr, mem_buf, len) != 0) | |
2100 | write_enn (own_buf); | |
2101 | else | |
2102 | write_ok (own_buf); | |
2103 | break; | |
2104 | case 'C': | |
2105 | require_running (own_buf); | |
2106 | convert_ascii_to_int (own_buf + 1, &sig, 1); | |
2107 | if (target_signal_to_host_p (sig)) | |
2108 | signal = target_signal_to_host (sig); | |
2109 | else | |
2110 | signal = 0; | |
2111 | myresume (own_buf, 0, signal); | |
2112 | break; | |
2113 | case 'S': | |
2114 | require_running (own_buf); | |
2115 | convert_ascii_to_int (own_buf + 1, &sig, 1); | |
2116 | if (target_signal_to_host_p (sig)) | |
2117 | signal = target_signal_to_host (sig); | |
2118 | else | |
2119 | signal = 0; | |
2120 | myresume (own_buf, 1, signal); | |
2121 | break; | |
2122 | case 'c': | |
2123 | require_running (own_buf); | |
2124 | signal = 0; | |
2125 | myresume (own_buf, 0, signal); | |
2126 | break; | |
2127 | case 's': | |
2128 | require_running (own_buf); | |
2129 | signal = 0; | |
2130 | myresume (own_buf, 1, signal); | |
2131 | break; | |
2132 | case 'Z': | |
2133 | { | |
2134 | char *lenptr; | |
2135 | char *dataptr; | |
2136 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
2137 | int len = strtol (lenptr + 1, &dataptr, 16); | |
2138 | char type = own_buf[1]; | |
2139 | ||
2140 | if (the_target->insert_watchpoint == NULL | |
2141 | || (type < '2' || type > '4')) | |
2142 | { | |
2143 | /* No watchpoint support or not a watchpoint command; | |
2144 | unrecognized either way. */ | |
2145 | own_buf[0] = '\0'; | |
2146 | } | |
2147 | else | |
2148 | { | |
2149 | int res; | |
2150 | ||
2151 | require_running (own_buf); | |
2152 | res = (*the_target->insert_watchpoint) (type, addr, len); | |
2153 | if (res == 0) | |
2154 | write_ok (own_buf); | |
2155 | else if (res == 1) | |
2156 | /* Unsupported. */ | |
2157 | own_buf[0] = '\0'; | |
2158 | else | |
2159 | write_enn (own_buf); | |
2160 | } | |
2161 | break; | |
2162 | } | |
2163 | case 'z': | |
2164 | { | |
2165 | char *lenptr; | |
2166 | char *dataptr; | |
2167 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
2168 | int len = strtol (lenptr + 1, &dataptr, 16); | |
2169 | char type = own_buf[1]; | |
2170 | ||
2171 | if (the_target->remove_watchpoint == NULL | |
2172 | || (type < '2' || type > '4')) | |
2173 | { | |
2174 | /* No watchpoint support or not a watchpoint command; | |
2175 | unrecognized either way. */ | |
2176 | own_buf[0] = '\0'; | |
2177 | } | |
2178 | else | |
2179 | { | |
2180 | int res; | |
2181 | ||
2182 | require_running (own_buf); | |
2183 | res = (*the_target->remove_watchpoint) (type, addr, len); | |
2184 | if (res == 0) | |
2185 | write_ok (own_buf); | |
2186 | else if (res == 1) | |
2187 | /* Unsupported. */ | |
2188 | own_buf[0] = '\0'; | |
2189 | else | |
2190 | write_enn (own_buf); | |
2191 | } | |
2192 | break; | |
2193 | } | |
2194 | case 'k': | |
2195 | response_needed = 0; | |
2196 | if (!target_running ()) | |
2197 | /* The packet we received doesn't make sense - but we | |
2198 | can't reply to it, either. */ | |
2199 | return; | |
c906108c | 2200 | |
bd99dc85 PA |
2201 | fprintf (stderr, "Killing inferior\n"); |
2202 | kill_inferior (); | |
2203 | discard_queued_stop_replies (); | |
c906108c | 2204 | |
bd99dc85 PA |
2205 | /* When using the extended protocol, we wait with no program |
2206 | running. The traditional protocol will exit instead. */ | |
2207 | if (extended_protocol) | |
2208 | { | |
2209 | last_status.kind = TARGET_WAITKIND_EXITED; | |
2210 | last_status.value.sig = TARGET_SIGNAL_KILL; | |
2211 | return; | |
2212 | } | |
2213 | else | |
c906108c | 2214 | { |
c906108c | 2215 | exit (0); |
bd99dc85 PA |
2216 | break; |
2217 | } | |
2218 | case 'T': | |
2219 | { | |
2220 | unsigned long gdb_id, thread_id; | |
2221 | ||
2222 | require_running (own_buf); | |
2223 | gdb_id = strtoul (&own_buf[1], NULL, 16); | |
2224 | thread_id = gdb_id_to_thread_id (gdb_id); | |
2225 | if (thread_id == 0) | |
2226 | { | |
2227 | write_enn (own_buf); | |
2228 | break; | |
2229 | } | |
2230 | ||
2231 | if (mythread_alive (thread_id)) | |
2232 | write_ok (own_buf); | |
2233 | else | |
2234 | write_enn (own_buf); | |
2235 | } | |
2236 | break; | |
2237 | case 'R': | |
2238 | response_needed = 0; | |
2239 | ||
2240 | /* Restarting the inferior is only supported in the extended | |
2241 | protocol. */ | |
2242 | if (extended_protocol) | |
2243 | { | |
2244 | if (target_running ()) | |
2245 | { | |
2246 | kill_inferior (); | |
2247 | discard_queued_stop_replies (); | |
2248 | } | |
2249 | fprintf (stderr, "GDBserver restarting\n"); | |
2250 | ||
2251 | /* Wait till we are at 1st instruction in prog. */ | |
2252 | if (program_argv != NULL) | |
2253 | start_inferior (program_argv); | |
2254 | else | |
2255 | { | |
2256 | last_status.kind = TARGET_WAITKIND_EXITED; | |
2257 | last_status.value.sig = TARGET_SIGNAL_KILL; | |
2258 | } | |
2259 | return; | |
c906108c SS |
2260 | } |
2261 | else | |
2262 | { | |
bd99dc85 PA |
2263 | /* It is a request we don't understand. Respond with an |
2264 | empty packet so that gdb knows that we don't support this | |
2265 | request. */ | |
2266 | own_buf[0] = '\0'; | |
2267 | break; | |
2268 | } | |
2269 | case 'v': | |
2270 | /* Extended (long) request. */ | |
2271 | handle_v_requests (own_buf, packet_len, &new_packet_len); | |
2272 | break; | |
2273 | ||
2274 | default: | |
2275 | /* It is a request we don't understand. Respond with an empty | |
2276 | packet so that gdb knows that we don't support this | |
2277 | request. */ | |
2278 | own_buf[0] = '\0'; | |
2279 | break; | |
2280 | } | |
2281 | ||
2282 | if (new_packet_len != -1) | |
2283 | putpkt_binary (own_buf, new_packet_len); | |
2284 | else | |
2285 | putpkt (own_buf); | |
2286 | ||
2287 | response_needed = 0; | |
2288 | ||
2289 | if (!extended_protocol && have_ran && !target_running ()) | |
2290 | { | |
2291 | /* In non-stop, defer exiting until GDB had a chance to query | |
2292 | the whole vStopped list (until it gets an OK). */ | |
2293 | if (!notif_queue) | |
2294 | { | |
2295 | fprintf (stderr, "GDBserver exiting\n"); | |
c906108c | 2296 | remote_close (); |
bd99dc85 | 2297 | exit (0); |
c906108c SS |
2298 | } |
2299 | } | |
2300 | } | |
bd99dc85 PA |
2301 | |
2302 | /* Event-loop callback for serial events. */ | |
2303 | ||
2304 | void | |
2305 | handle_serial_event (int err, gdb_client_data client_data) | |
2306 | { | |
2307 | if (debug_threads) | |
2308 | fprintf (stderr, "handling possible serial event\n"); | |
2309 | ||
2310 | /* Really handle it. */ | |
2311 | process_serial_event (); | |
2312 | ||
2313 | /* Be sure to not change the selected inferior behind GDB's back. | |
2314 | Important in the non-stop mode asynchronous protocol. */ | |
2315 | set_desired_inferior (1); | |
2316 | } | |
2317 | ||
2318 | /* Event-loop callback for target events. */ | |
2319 | ||
2320 | void | |
2321 | handle_target_event (int err, gdb_client_data client_data) | |
2322 | { | |
2323 | if (debug_threads) | |
2324 | fprintf (stderr, "handling possible target event\n"); | |
2325 | ||
2326 | last_ptid = mywait (&last_status, TARGET_WNOHANG, 1); | |
2327 | ||
2328 | if (last_status.kind != TARGET_WAITKIND_IGNORE) | |
2329 | { | |
2330 | /* Something interesting. Tell GDB about it. */ | |
2331 | push_event (last_ptid, &last_status); | |
2332 | } | |
2333 | ||
2334 | /* Be sure to not change the selected inferior behind GDB's back. | |
2335 | Important in the non-stop mode asynchronous protocol. */ | |
2336 | set_desired_inferior (1); | |
2337 | } |