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, |
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 |
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; | |
38 | unsigned long thread_from_wait; | |
39 | unsigned long old_thread_from_wait; | |
0d62e5e8 DJ |
40 | int server_waiting; |
41 | ||
2d717e4f DJ |
42 | static int extended_protocol; |
43 | static int attached; | |
44 | static int response_needed; | |
45 | static int exit_requested; | |
46 | ||
ccd213ac | 47 | static char **program_argv, **wrapper_argv; |
2d717e4f | 48 | |
c74d0ad8 DJ |
49 | /* Enable miscellaneous debugging output. The name is historical - it |
50 | was originally used to debug LinuxThreads support. */ | |
51 | int debug_threads; | |
52 | ||
89be2091 DJ |
53 | int pass_signals[TARGET_SIGNAL_LAST]; |
54 | ||
c906108c | 55 | jmp_buf toplevel; |
c906108c | 56 | |
9b4b61c8 UW |
57 | const char *gdbserver_xmltarget; |
58 | ||
a9fa9f7d DJ |
59 | /* The PID of the originally created or attached inferior. Used to |
60 | send signals to the process when GDB sends us an asynchronous interrupt | |
61 | (user hitting Control-C in the client), and to wait for the child to exit | |
62 | when no longer debugging it. */ | |
63 | ||
a1928bad | 64 | unsigned long signal_pid; |
a9fa9f7d | 65 | |
290fadea RS |
66 | #ifdef SIGTTOU |
67 | /* A file descriptor for the controlling terminal. */ | |
68 | int terminal_fd; | |
69 | ||
70 | /* TERMINAL_FD's original foreground group. */ | |
71 | pid_t old_foreground_pgrp; | |
72 | ||
73 | /* Hand back terminal ownership to the original foreground group. */ | |
74 | ||
75 | static void | |
76 | restore_old_foreground_pgrp (void) | |
77 | { | |
78 | tcsetpgrp (terminal_fd, old_foreground_pgrp); | |
79 | } | |
80 | #endif | |
81 | ||
ec56be1b PA |
82 | /* Set if you want to disable optional thread related packets support |
83 | in gdbserver, for the sake of testing GDB against stubs that don't | |
84 | support them. */ | |
85 | int disable_packet_vCont; | |
86 | int disable_packet_Tthread; | |
87 | int disable_packet_qC; | |
88 | int disable_packet_qfThreadInfo; | |
89 | ||
2d717e4f DJ |
90 | static int |
91 | target_running (void) | |
92 | { | |
93 | return all_threads.head != NULL; | |
94 | } | |
95 | ||
fc620387 | 96 | static int |
ccd213ac | 97 | start_inferior (char **argv, char *statusptr) |
c906108c | 98 | { |
ccd213ac | 99 | char **new_argv = argv; |
2d717e4f DJ |
100 | attached = 0; |
101 | ||
ccd213ac DJ |
102 | if (wrapper_argv != NULL) |
103 | { | |
104 | int i, count = 1; | |
105 | ||
106 | for (i = 0; wrapper_argv[i] != NULL; i++) | |
107 | count++; | |
108 | for (i = 0; argv[i] != NULL; i++) | |
109 | count++; | |
110 | new_argv = alloca (sizeof (char *) * count); | |
111 | count = 0; | |
112 | for (i = 0; wrapper_argv[i] != NULL; i++) | |
113 | new_argv[count++] = wrapper_argv[i]; | |
114 | for (i = 0; argv[i] != NULL; i++) | |
115 | new_argv[count++] = argv[i]; | |
116 | new_argv[count] = NULL; | |
117 | } | |
118 | ||
b80864fb | 119 | #ifdef SIGTTOU |
a9fa9f7d DJ |
120 | signal (SIGTTOU, SIG_DFL); |
121 | signal (SIGTTIN, SIG_DFL); | |
b80864fb | 122 | #endif |
a9fa9f7d | 123 | |
ccd213ac | 124 | signal_pid = create_inferior (new_argv[0], new_argv); |
0d62e5e8 | 125 | |
c588c53c MS |
126 | /* FIXME: we don't actually know at this point that the create |
127 | actually succeeded. We won't know that until we wait. */ | |
a1928bad | 128 | fprintf (stderr, "Process %s created; pid = %ld\n", argv[0], |
a9fa9f7d | 129 | signal_pid); |
b80864fb | 130 | fflush (stderr); |
a9fa9f7d | 131 | |
b80864fb | 132 | #ifdef SIGTTOU |
a9fa9f7d DJ |
133 | signal (SIGTTOU, SIG_IGN); |
134 | signal (SIGTTIN, SIG_IGN); | |
290fadea RS |
135 | terminal_fd = fileno (stderr); |
136 | old_foreground_pgrp = tcgetpgrp (terminal_fd); | |
137 | tcsetpgrp (terminal_fd, signal_pid); | |
138 | atexit (restore_old_foreground_pgrp); | |
b80864fb | 139 | #endif |
c906108c | 140 | |
ccd213ac DJ |
141 | if (wrapper_argv != NULL) |
142 | { | |
143 | struct thread_resume resume_info; | |
144 | int sig; | |
145 | ||
146 | resume_info.thread = -1; | |
147 | resume_info.step = 0; | |
148 | resume_info.sig = 0; | |
149 | resume_info.leave_stopped = 0; | |
150 | ||
151 | sig = mywait (statusptr, 0); | |
152 | if (*statusptr != 'T') | |
153 | return sig; | |
154 | ||
155 | do | |
156 | { | |
157 | (*the_target->resume) (&resume_info); | |
158 | ||
159 | sig = mywait (statusptr, 0); | |
160 | if (*statusptr != 'T') | |
161 | return sig; | |
162 | } | |
163 | while (sig != TARGET_SIGNAL_TRAP); | |
164 | ||
165 | return sig; | |
166 | } | |
167 | ||
c588c53c MS |
168 | /* Wait till we are at 1st instruction in program, return signal |
169 | number (assuming success). */ | |
0d62e5e8 | 170 | return mywait (statusptr, 0); |
c906108c SS |
171 | } |
172 | ||
45b7b345 | 173 | static int |
fc620387 | 174 | attach_inferior (int pid, char *statusptr, int *sigptr) |
45b7b345 DJ |
175 | { |
176 | /* myattach should return -1 if attaching is unsupported, | |
177 | 0 if it succeeded, and call error() otherwise. */ | |
a9fa9f7d | 178 | |
45b7b345 DJ |
179 | if (myattach (pid) != 0) |
180 | return -1; | |
181 | ||
2d717e4f DJ |
182 | attached = 1; |
183 | ||
6910d122 | 184 | fprintf (stderr, "Attached; pid = %d\n", pid); |
b80864fb | 185 | fflush (stderr); |
6910d122 | 186 | |
a9fa9f7d DJ |
187 | /* FIXME - It may be that we should get the SIGNAL_PID from the |
188 | attach function, so that it can be the main thread instead of | |
189 | whichever we were told to attach to. */ | |
190 | signal_pid = pid; | |
191 | ||
0d62e5e8 | 192 | *sigptr = mywait (statusptr, 0); |
45b7b345 | 193 | |
9db87ebd DJ |
194 | /* GDB knows to ignore the first SIGSTOP after attaching to a running |
195 | process using the "attach" command, but this is different; it's | |
196 | just using "target remote". Pretend it's just starting up. */ | |
b80864fb DJ |
197 | if (*statusptr == 'T' && *sigptr == TARGET_SIGNAL_STOP) |
198 | *sigptr = TARGET_SIGNAL_TRAP; | |
9db87ebd | 199 | |
45b7b345 DJ |
200 | return 0; |
201 | } | |
202 | ||
c906108c | 203 | extern int remote_debug; |
ce3a066d | 204 | |
0876f84a DJ |
205 | /* Decode a qXfer read request. Return 0 if everything looks OK, |
206 | or -1 otherwise. */ | |
207 | ||
208 | static int | |
209 | decode_xfer_read (char *buf, char **annex, CORE_ADDR *ofs, unsigned int *len) | |
210 | { | |
211 | /* Extract and NUL-terminate the annex. */ | |
212 | *annex = buf; | |
213 | while (*buf && *buf != ':') | |
214 | buf++; | |
215 | if (*buf == '\0') | |
216 | return -1; | |
217 | *buf++ = 0; | |
218 | ||
0e7f50da | 219 | /* After the read marker and annex, qXfer looks like a |
0876f84a DJ |
220 | traditional 'm' packet. */ |
221 | decode_m_packet (buf, ofs, len); | |
222 | ||
223 | return 0; | |
224 | } | |
225 | ||
226 | /* Write the response to a successful qXfer read. Returns the | |
227 | length of the (binary) data stored in BUF, corresponding | |
228 | to as much of DATA/LEN as we could fit. IS_MORE controls | |
229 | the first character of the response. */ | |
230 | static int | |
23181151 | 231 | write_qxfer_response (char *buf, const void *data, int len, int is_more) |
0876f84a DJ |
232 | { |
233 | int out_len; | |
234 | ||
235 | if (is_more) | |
236 | buf[0] = 'm'; | |
237 | else | |
238 | buf[0] = 'l'; | |
239 | ||
240 | return remote_escape_output (data, len, (unsigned char *) buf + 1, &out_len, | |
241 | PBUFSIZ - 2) + 1; | |
242 | } | |
243 | ||
89be2091 DJ |
244 | /* Handle all of the extended 'Q' packets. */ |
245 | void | |
246 | handle_general_set (char *own_buf) | |
247 | { | |
248 | if (strncmp ("QPassSignals:", own_buf, strlen ("QPassSignals:")) == 0) | |
249 | { | |
250 | int numsigs = (int) TARGET_SIGNAL_LAST, i; | |
251 | const char *p = own_buf + strlen ("QPassSignals:"); | |
252 | CORE_ADDR cursig; | |
253 | ||
254 | p = decode_address_to_semicolon (&cursig, p); | |
255 | for (i = 0; i < numsigs; i++) | |
256 | { | |
257 | if (i == cursig) | |
258 | { | |
259 | pass_signals[i] = 1; | |
260 | if (*p == '\0') | |
261 | /* Keep looping, to clear the remaining signals. */ | |
262 | cursig = -1; | |
263 | else | |
264 | p = decode_address_to_semicolon (&cursig, p); | |
265 | } | |
266 | else | |
267 | pass_signals[i] = 0; | |
268 | } | |
269 | strcpy (own_buf, "OK"); | |
270 | return; | |
271 | } | |
272 | ||
273 | /* Otherwise we didn't know what packet it was. Say we didn't | |
274 | understand it. */ | |
275 | own_buf[0] = 0; | |
276 | } | |
277 | ||
23181151 | 278 | static const char * |
fb1e4ffc | 279 | get_features_xml (const char *annex) |
23181151 | 280 | { |
9b4b61c8 UW |
281 | /* gdbserver_xmltarget defines what to return when looking |
282 | for the "target.xml" file. Its contents can either be | |
283 | verbatim XML code (prefixed with a '@') or else the name | |
284 | of the actual XML file to be used in place of "target.xml". | |
fb1e4ffc | 285 | |
9b4b61c8 UW |
286 | This variable is set up from the auto-generated |
287 | init_registers_... routine for the current target. */ | |
fb1e4ffc | 288 | |
9b4b61c8 | 289 | if (gdbserver_xmltarget |
221c031f | 290 | && strcmp (annex, "target.xml") == 0) |
23181151 | 291 | { |
9b4b61c8 UW |
292 | if (*gdbserver_xmltarget == '@') |
293 | return gdbserver_xmltarget + 1; | |
23181151 | 294 | else |
9b4b61c8 | 295 | annex = gdbserver_xmltarget; |
23181151 DJ |
296 | } |
297 | ||
9b4b61c8 UW |
298 | #ifdef USE_XML |
299 | { | |
300 | extern const char *const xml_builtin[][2]; | |
301 | int i; | |
302 | ||
303 | /* Look for the annex. */ | |
304 | for (i = 0; xml_builtin[i][0] != NULL; i++) | |
305 | if (strcmp (annex, xml_builtin[i][0]) == 0) | |
306 | break; | |
307 | ||
308 | if (xml_builtin[i][0] != NULL) | |
309 | return xml_builtin[i][1]; | |
310 | } | |
311 | #endif | |
312 | ||
313 | return NULL; | |
23181151 DJ |
314 | } |
315 | ||
c74d0ad8 DJ |
316 | void |
317 | monitor_show_help (void) | |
318 | { | |
319 | monitor_output ("The following monitor commands are supported:\n"); | |
320 | monitor_output (" set debug <0|1>\n"); | |
321 | monitor_output (" Enable general debugging messages\n"); | |
322 | monitor_output (" set remote-debug <0|1>\n"); | |
323 | monitor_output (" Enable remote protocol debugging messages\n"); | |
ecd7ecbc DJ |
324 | monitor_output (" exit\n"); |
325 | monitor_output (" Quit GDBserver\n"); | |
c74d0ad8 DJ |
326 | } |
327 | ||
08388c79 DE |
328 | /* Subroutine of handle_search_memory to simplify it. */ |
329 | ||
330 | static int | |
331 | handle_search_memory_1 (CORE_ADDR start_addr, CORE_ADDR search_space_len, | |
332 | gdb_byte *pattern, unsigned pattern_len, | |
333 | gdb_byte *search_buf, | |
334 | unsigned chunk_size, unsigned search_buf_size, | |
335 | CORE_ADDR *found_addrp) | |
336 | { | |
337 | /* Prime the search buffer. */ | |
338 | ||
339 | if (read_inferior_memory (start_addr, search_buf, search_buf_size) != 0) | |
340 | { | |
5e1471f5 | 341 | warning ("Unable to access target memory at 0x%lx, halting search.", |
08388c79 DE |
342 | (long) start_addr); |
343 | return -1; | |
344 | } | |
345 | ||
346 | /* Perform the search. | |
347 | ||
348 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
349 | When we've scanned N bytes we copy the trailing bytes to the start and | |
350 | read in another N bytes. */ | |
351 | ||
352 | while (search_space_len >= pattern_len) | |
353 | { | |
354 | gdb_byte *found_ptr; | |
355 | unsigned nr_search_bytes = (search_space_len < search_buf_size | |
356 | ? search_space_len | |
357 | : search_buf_size); | |
358 | ||
359 | found_ptr = memmem (search_buf, nr_search_bytes, pattern, pattern_len); | |
360 | ||
361 | if (found_ptr != NULL) | |
362 | { | |
363 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
364 | *found_addrp = found_addr; | |
365 | return 1; | |
366 | } | |
367 | ||
368 | /* Not found in this chunk, skip to next chunk. */ | |
369 | ||
370 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
371 | if (search_space_len >= chunk_size) | |
372 | search_space_len -= chunk_size; | |
373 | else | |
374 | search_space_len = 0; | |
375 | ||
376 | if (search_space_len >= pattern_len) | |
377 | { | |
378 | unsigned keep_len = search_buf_size - chunk_size; | |
379 | CORE_ADDR read_addr = start_addr + keep_len; | |
380 | int nr_to_read; | |
381 | ||
382 | /* Copy the trailing part of the previous iteration to the front | |
383 | of the buffer for the next iteration. */ | |
384 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
385 | ||
386 | nr_to_read = (search_space_len - keep_len < chunk_size | |
387 | ? search_space_len - keep_len | |
388 | : chunk_size); | |
389 | ||
390 | if (read_inferior_memory (read_addr, search_buf + keep_len, | |
391 | nr_to_read) != 0) | |
392 | { | |
5e1471f5 | 393 | warning ("Unable to access target memory at 0x%lx, halting search.", |
08388c79 DE |
394 | (long) read_addr); |
395 | return -1; | |
396 | } | |
397 | ||
398 | start_addr += chunk_size; | |
399 | } | |
400 | } | |
401 | ||
402 | /* Not found. */ | |
403 | ||
404 | return 0; | |
405 | } | |
406 | ||
407 | /* Handle qSearch:memory packets. */ | |
408 | ||
409 | static void | |
410 | handle_search_memory (char *own_buf, int packet_len) | |
411 | { | |
412 | CORE_ADDR start_addr; | |
413 | CORE_ADDR search_space_len; | |
414 | gdb_byte *pattern; | |
415 | unsigned int pattern_len; | |
416 | /* NOTE: also defined in find.c testcase. */ | |
417 | #define SEARCH_CHUNK_SIZE 16000 | |
418 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
419 | /* Buffer to hold memory contents for searching. */ | |
420 | gdb_byte *search_buf; | |
421 | unsigned search_buf_size; | |
422 | int found; | |
423 | CORE_ADDR found_addr; | |
424 | int cmd_name_len = sizeof ("qSearch:memory:") - 1; | |
425 | ||
426 | pattern = malloc (packet_len); | |
427 | if (pattern == NULL) | |
428 | { | |
5e1471f5 | 429 | error ("Unable to allocate memory to perform the search"); |
08388c79 DE |
430 | strcpy (own_buf, "E00"); |
431 | return; | |
432 | } | |
433 | if (decode_search_memory_packet (own_buf + cmd_name_len, | |
434 | packet_len - cmd_name_len, | |
435 | &start_addr, &search_space_len, | |
436 | pattern, &pattern_len) < 0) | |
437 | { | |
438 | free (pattern); | |
5e1471f5 | 439 | error ("Error in parsing qSearch:memory packet"); |
08388c79 DE |
440 | strcpy (own_buf, "E00"); |
441 | return; | |
442 | } | |
443 | ||
444 | search_buf_size = chunk_size + pattern_len - 1; | |
445 | ||
446 | /* No point in trying to allocate a buffer larger than the search space. */ | |
447 | if (search_space_len < search_buf_size) | |
448 | search_buf_size = search_space_len; | |
449 | ||
450 | search_buf = malloc (search_buf_size); | |
451 | if (search_buf == NULL) | |
452 | { | |
453 | free (pattern); | |
5e1471f5 | 454 | error ("Unable to allocate memory to perform the search"); |
08388c79 DE |
455 | strcpy (own_buf, "E00"); |
456 | return; | |
457 | } | |
458 | ||
459 | found = handle_search_memory_1 (start_addr, search_space_len, | |
460 | pattern, pattern_len, | |
461 | search_buf, chunk_size, search_buf_size, | |
462 | &found_addr); | |
463 | ||
464 | if (found > 0) | |
465 | sprintf (own_buf, "1,%lx", (long) found_addr); | |
466 | else if (found == 0) | |
467 | strcpy (own_buf, "0"); | |
468 | else | |
469 | strcpy (own_buf, "E00"); | |
470 | ||
471 | free (search_buf); | |
472 | free (pattern); | |
473 | } | |
474 | ||
2d717e4f DJ |
475 | #define require_running(BUF) \ |
476 | if (!target_running ()) \ | |
477 | { \ | |
478 | write_enn (BUF); \ | |
479 | return; \ | |
480 | } | |
481 | ||
ce3a066d DJ |
482 | /* Handle all of the extended 'q' packets. */ |
483 | void | |
0e7f50da | 484 | handle_query (char *own_buf, int packet_len, int *new_packet_len_p) |
ce3a066d | 485 | { |
0d62e5e8 DJ |
486 | static struct inferior_list_entry *thread_ptr; |
487 | ||
bb63802a | 488 | /* Reply the current thread id. */ |
db42f210 | 489 | if (strcmp ("qC", own_buf) == 0 && !disable_packet_qC) |
bb63802a | 490 | { |
2d717e4f | 491 | require_running (own_buf); |
bb63802a UW |
492 | thread_ptr = all_threads.head; |
493 | sprintf (own_buf, "QC%x", | |
db42f210 | 494 | thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
bb63802a UW |
495 | return; |
496 | } | |
497 | ||
ce3a066d DJ |
498 | if (strcmp ("qSymbol::", own_buf) == 0) |
499 | { | |
2d717e4f | 500 | if (target_running () && the_target->look_up_symbols != NULL) |
2f2893d9 DJ |
501 | (*the_target->look_up_symbols) (); |
502 | ||
ce3a066d DJ |
503 | strcpy (own_buf, "OK"); |
504 | return; | |
505 | } | |
506 | ||
db42f210 | 507 | if (!disable_packet_qfThreadInfo) |
0d62e5e8 | 508 | { |
db42f210 | 509 | if (strcmp ("qfThreadInfo", own_buf) == 0) |
0d62e5e8 | 510 | { |
db42f210 PA |
511 | require_running (own_buf); |
512 | thread_ptr = all_threads.head; | |
a06660f7 | 513 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
0d62e5e8 DJ |
514 | thread_ptr = thread_ptr->next; |
515 | return; | |
516 | } | |
db42f210 PA |
517 | |
518 | if (strcmp ("qsThreadInfo", own_buf) == 0) | |
0d62e5e8 | 519 | { |
db42f210 PA |
520 | require_running (own_buf); |
521 | if (thread_ptr != NULL) | |
522 | { | |
523 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); | |
524 | thread_ptr = thread_ptr->next; | |
525 | return; | |
526 | } | |
527 | else | |
528 | { | |
529 | sprintf (own_buf, "l"); | |
530 | return; | |
531 | } | |
0d62e5e8 DJ |
532 | } |
533 | } | |
aa691b87 | 534 | |
52fb6437 NS |
535 | if (the_target->read_offsets != NULL |
536 | && strcmp ("qOffsets", own_buf) == 0) | |
537 | { | |
538 | CORE_ADDR text, data; | |
2d717e4f DJ |
539 | |
540 | require_running (own_buf); | |
52fb6437 NS |
541 | if (the_target->read_offsets (&text, &data)) |
542 | sprintf (own_buf, "Text=%lX;Data=%lX;Bss=%lX", | |
543 | (long)text, (long)data, (long)data); | |
544 | else | |
545 | write_enn (own_buf); | |
546 | ||
547 | return; | |
548 | } | |
549 | ||
0e7f50da UW |
550 | if (the_target->qxfer_spu != NULL |
551 | && strncmp ("qXfer:spu:read:", own_buf, 15) == 0) | |
552 | { | |
553 | char *annex; | |
554 | int n; | |
555 | unsigned int len; | |
556 | CORE_ADDR ofs; | |
557 | unsigned char *spu_buf; | |
558 | ||
2d717e4f | 559 | require_running (own_buf); |
0e7f50da UW |
560 | strcpy (own_buf, "E00"); |
561 | if (decode_xfer_read (own_buf + 15, &annex, &ofs, &len) < 0) | |
562 | return; | |
563 | if (len > PBUFSIZ - 2) | |
564 | len = PBUFSIZ - 2; | |
565 | spu_buf = malloc (len + 1); | |
566 | if (!spu_buf) | |
567 | return; | |
568 | ||
569 | n = (*the_target->qxfer_spu) (annex, spu_buf, NULL, ofs, len + 1); | |
570 | if (n < 0) | |
571 | write_enn (own_buf); | |
572 | else if (n > len) | |
573 | *new_packet_len_p = write_qxfer_response | |
574 | (own_buf, spu_buf, len, 1); | |
575 | else | |
576 | *new_packet_len_p = write_qxfer_response | |
577 | (own_buf, spu_buf, n, 0); | |
578 | ||
579 | free (spu_buf); | |
580 | return; | |
581 | } | |
582 | ||
583 | if (the_target->qxfer_spu != NULL | |
584 | && strncmp ("qXfer:spu:write:", own_buf, 16) == 0) | |
585 | { | |
586 | char *annex; | |
587 | int n; | |
588 | unsigned int len; | |
589 | CORE_ADDR ofs; | |
590 | unsigned char *spu_buf; | |
591 | ||
2d717e4f | 592 | require_running (own_buf); |
0e7f50da UW |
593 | strcpy (own_buf, "E00"); |
594 | spu_buf = malloc (packet_len - 15); | |
595 | if (!spu_buf) | |
596 | return; | |
597 | if (decode_xfer_write (own_buf + 16, packet_len - 16, &annex, | |
598 | &ofs, &len, spu_buf) < 0) | |
599 | { | |
600 | free (spu_buf); | |
601 | return; | |
602 | } | |
603 | ||
604 | n = (*the_target->qxfer_spu) | |
605 | (annex, NULL, (unsigned const char *)spu_buf, ofs, len); | |
606 | if (n < 0) | |
607 | write_enn (own_buf); | |
608 | else | |
609 | sprintf (own_buf, "%x", n); | |
610 | ||
611 | free (spu_buf); | |
612 | return; | |
613 | } | |
614 | ||
aa691b87 | 615 | if (the_target->read_auxv != NULL |
0876f84a | 616 | && strncmp ("qXfer:auxv:read:", own_buf, 16) == 0) |
aa691b87 | 617 | { |
0876f84a DJ |
618 | unsigned char *data; |
619 | int n; | |
aa691b87 RM |
620 | CORE_ADDR ofs; |
621 | unsigned int len; | |
0876f84a DJ |
622 | char *annex; |
623 | ||
2d717e4f DJ |
624 | require_running (own_buf); |
625 | ||
0876f84a DJ |
626 | /* Reject any annex; grab the offset and length. */ |
627 | if (decode_xfer_read (own_buf + 16, &annex, &ofs, &len) < 0 | |
628 | || annex[0] != '\0') | |
629 | { | |
630 | strcpy (own_buf, "E00"); | |
631 | return; | |
632 | } | |
633 | ||
634 | /* Read one extra byte, as an indicator of whether there is | |
635 | more. */ | |
636 | if (len > PBUFSIZ - 2) | |
637 | len = PBUFSIZ - 2; | |
638 | data = malloc (len + 1); | |
639 | n = (*the_target->read_auxv) (ofs, data, len + 1); | |
000ef4f0 DJ |
640 | if (n < 0) |
641 | write_enn (own_buf); | |
642 | else if (n > len) | |
0876f84a | 643 | *new_packet_len_p = write_qxfer_response (own_buf, data, len, 1); |
aa691b87 | 644 | else |
0876f84a DJ |
645 | *new_packet_len_p = write_qxfer_response (own_buf, data, n, 0); |
646 | ||
647 | free (data); | |
648 | ||
aa691b87 RM |
649 | return; |
650 | } | |
651 | ||
23181151 DJ |
652 | if (strncmp ("qXfer:features:read:", own_buf, 20) == 0) |
653 | { | |
654 | CORE_ADDR ofs; | |
655 | unsigned int len, total_len; | |
656 | const char *document; | |
657 | char *annex; | |
658 | ||
2d717e4f DJ |
659 | require_running (own_buf); |
660 | ||
fb1e4ffc DJ |
661 | /* Grab the annex, offset, and length. */ |
662 | if (decode_xfer_read (own_buf + 20, &annex, &ofs, &len) < 0) | |
663 | { | |
664 | strcpy (own_buf, "E00"); | |
665 | return; | |
666 | } | |
667 | ||
668 | /* Now grab the correct annex. */ | |
669 | document = get_features_xml (annex); | |
670 | if (document == NULL) | |
23181151 DJ |
671 | { |
672 | strcpy (own_buf, "E00"); | |
673 | return; | |
674 | } | |
675 | ||
676 | total_len = strlen (document); | |
677 | if (len > PBUFSIZ - 2) | |
678 | len = PBUFSIZ - 2; | |
679 | ||
680 | if (ofs > total_len) | |
681 | write_enn (own_buf); | |
682 | else if (len < total_len - ofs) | |
683 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
684 | len, 1); | |
685 | else | |
686 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
687 | total_len - ofs, 0); | |
688 | ||
689 | return; | |
690 | } | |
691 | ||
255e7678 DJ |
692 | if (strncmp ("qXfer:libraries:read:", own_buf, 21) == 0) |
693 | { | |
694 | CORE_ADDR ofs; | |
695 | unsigned int len, total_len; | |
696 | char *document, *p; | |
697 | struct inferior_list_entry *dll_ptr; | |
698 | char *annex; | |
699 | ||
2d717e4f DJ |
700 | require_running (own_buf); |
701 | ||
255e7678 DJ |
702 | /* Reject any annex; grab the offset and length. */ |
703 | if (decode_xfer_read (own_buf + 21, &annex, &ofs, &len) < 0 | |
704 | || annex[0] != '\0') | |
705 | { | |
706 | strcpy (own_buf, "E00"); | |
707 | return; | |
708 | } | |
709 | ||
710 | /* Over-estimate the necessary memory. Assume that every character | |
711 | in the library name must be escaped. */ | |
712 | total_len = 64; | |
713 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
714 | total_len += 128 + 6 * strlen (((struct dll_info *) dll_ptr)->name); | |
715 | ||
716 | document = malloc (total_len); | |
717 | strcpy (document, "<library-list>\n"); | |
718 | p = document + strlen (document); | |
719 | ||
720 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
721 | { | |
722 | struct dll_info *dll = (struct dll_info *) dll_ptr; | |
723 | char *name; | |
724 | ||
725 | strcpy (p, " <library name=\""); | |
726 | p = p + strlen (p); | |
727 | name = xml_escape_text (dll->name); | |
728 | strcpy (p, name); | |
729 | free (name); | |
730 | p = p + strlen (p); | |
731 | strcpy (p, "\"><segment address=\""); | |
732 | p = p + strlen (p); | |
733 | sprintf (p, "0x%lx", (long) dll->base_addr); | |
734 | p = p + strlen (p); | |
735 | strcpy (p, "\"/></library>\n"); | |
736 | p = p + strlen (p); | |
737 | } | |
738 | ||
739 | strcpy (p, "</library-list>\n"); | |
740 | ||
741 | total_len = strlen (document); | |
742 | if (len > PBUFSIZ - 2) | |
743 | len = PBUFSIZ - 2; | |
744 | ||
745 | if (ofs > total_len) | |
746 | write_enn (own_buf); | |
747 | else if (len < total_len - ofs) | |
748 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
749 | len, 1); | |
750 | else | |
751 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
752 | total_len - ofs, 0); | |
753 | ||
754 | free (document); | |
755 | return; | |
756 | } | |
757 | ||
be2a5f71 DJ |
758 | /* Protocol features query. */ |
759 | if (strncmp ("qSupported", own_buf, 10) == 0 | |
760 | && (own_buf[10] == ':' || own_buf[10] == '\0')) | |
761 | { | |
89be2091 | 762 | sprintf (own_buf, "PacketSize=%x;QPassSignals+", PBUFSIZ - 1); |
0876f84a | 763 | |
255e7678 DJ |
764 | /* We do not have any hook to indicate whether the target backend |
765 | supports qXfer:libraries:read, so always report it. */ | |
766 | strcat (own_buf, ";qXfer:libraries:read+"); | |
767 | ||
0876f84a | 768 | if (the_target->read_auxv != NULL) |
9f2e1e63 | 769 | strcat (own_buf, ";qXfer:auxv:read+"); |
2d717e4f | 770 | |
0e7f50da UW |
771 | if (the_target->qxfer_spu != NULL) |
772 | strcat (own_buf, ";qXfer:spu:read+;qXfer:spu:write+"); | |
0876f84a | 773 | |
221c031f UW |
774 | /* We always report qXfer:features:read, as targets may |
775 | install XML files on a subsequent call to arch_setup. | |
776 | If we reported to GDB on startup that we don't support | |
777 | qXfer:feature:read at all, we will never be re-queried. */ | |
778 | strcat (own_buf, ";qXfer:features:read+"); | |
23181151 | 779 | |
be2a5f71 DJ |
780 | return; |
781 | } | |
782 | ||
dae5f5cf DJ |
783 | /* Thread-local storage support. */ |
784 | if (the_target->get_tls_address != NULL | |
785 | && strncmp ("qGetTLSAddr:", own_buf, 12) == 0) | |
786 | { | |
787 | char *p = own_buf + 12; | |
788 | CORE_ADDR parts[3], address = 0; | |
789 | int i, err; | |
790 | ||
2d717e4f DJ |
791 | require_running (own_buf); |
792 | ||
dae5f5cf DJ |
793 | for (i = 0; i < 3; i++) |
794 | { | |
795 | char *p2; | |
796 | int len; | |
797 | ||
798 | if (p == NULL) | |
799 | break; | |
800 | ||
801 | p2 = strchr (p, ','); | |
802 | if (p2) | |
803 | { | |
804 | len = p2 - p; | |
805 | p2++; | |
806 | } | |
807 | else | |
808 | { | |
809 | len = strlen (p); | |
810 | p2 = NULL; | |
811 | } | |
812 | ||
813 | decode_address (&parts[i], p, len); | |
814 | p = p2; | |
815 | } | |
816 | ||
817 | if (p != NULL || i < 3) | |
818 | err = 1; | |
819 | else | |
820 | { | |
821 | struct thread_info *thread = gdb_id_to_thread (parts[0]); | |
822 | ||
823 | if (thread == NULL) | |
824 | err = 2; | |
825 | else | |
826 | err = the_target->get_tls_address (thread, parts[1], parts[2], | |
827 | &address); | |
828 | } | |
829 | ||
830 | if (err == 0) | |
831 | { | |
832 | sprintf (own_buf, "%llx", address); | |
833 | return; | |
834 | } | |
835 | else if (err > 0) | |
836 | { | |
837 | write_enn (own_buf); | |
838 | return; | |
839 | } | |
840 | ||
841 | /* Otherwise, pretend we do not understand this packet. */ | |
842 | } | |
843 | ||
c74d0ad8 DJ |
844 | /* Handle "monitor" commands. */ |
845 | if (strncmp ("qRcmd,", own_buf, 6) == 0) | |
846 | { | |
847 | char *mon = malloc (PBUFSIZ); | |
848 | int len = strlen (own_buf + 6); | |
849 | ||
d41b6bb4 | 850 | if ((len % 2) != 0 || unhexify (mon, own_buf + 6, len / 2) != len / 2) |
c74d0ad8 DJ |
851 | { |
852 | write_enn (own_buf); | |
853 | free (mon); | |
854 | return; | |
855 | } | |
856 | mon[len / 2] = '\0'; | |
857 | ||
858 | write_ok (own_buf); | |
859 | ||
860 | if (strcmp (mon, "set debug 1") == 0) | |
861 | { | |
862 | debug_threads = 1; | |
863 | monitor_output ("Debug output enabled.\n"); | |
864 | } | |
865 | else if (strcmp (mon, "set debug 0") == 0) | |
866 | { | |
867 | debug_threads = 0; | |
868 | monitor_output ("Debug output disabled.\n"); | |
869 | } | |
870 | else if (strcmp (mon, "set remote-debug 1") == 0) | |
871 | { | |
872 | remote_debug = 1; | |
873 | monitor_output ("Protocol debug output enabled.\n"); | |
874 | } | |
875 | else if (strcmp (mon, "set remote-debug 0") == 0) | |
876 | { | |
877 | remote_debug = 0; | |
878 | monitor_output ("Protocol debug output disabled.\n"); | |
879 | } | |
880 | else if (strcmp (mon, "help") == 0) | |
881 | monitor_show_help (); | |
2d717e4f DJ |
882 | else if (strcmp (mon, "exit") == 0) |
883 | exit_requested = 1; | |
c74d0ad8 DJ |
884 | else |
885 | { | |
886 | monitor_output ("Unknown monitor command.\n\n"); | |
887 | monitor_show_help (); | |
888 | write_enn (own_buf); | |
889 | } | |
890 | ||
891 | free (mon); | |
892 | return; | |
893 | } | |
894 | ||
08388c79 DE |
895 | if (strncmp ("qSearch:memory:", own_buf, sizeof ("qSearch:memory:") - 1) == 0) |
896 | { | |
897 | require_running (own_buf); | |
898 | handle_search_memory (own_buf, packet_len); | |
899 | return; | |
900 | } | |
901 | ||
ce3a066d DJ |
902 | /* Otherwise we didn't know what packet it was. Say we didn't |
903 | understand it. */ | |
904 | own_buf[0] = 0; | |
905 | } | |
906 | ||
64386c31 DJ |
907 | /* Parse vCont packets. */ |
908 | void | |
fc620387 | 909 | handle_v_cont (char *own_buf, char *status, int *signal) |
64386c31 DJ |
910 | { |
911 | char *p, *q; | |
912 | int n = 0, i = 0; | |
913 | struct thread_resume *resume_info, default_action; | |
914 | ||
915 | /* Count the number of semicolons in the packet. There should be one | |
916 | for every action. */ | |
917 | p = &own_buf[5]; | |
918 | while (p) | |
919 | { | |
920 | n++; | |
921 | p++; | |
922 | p = strchr (p, ';'); | |
923 | } | |
924 | /* Allocate room for one extra action, for the default remain-stopped | |
925 | behavior; if no default action is in the list, we'll need the extra | |
926 | slot. */ | |
927 | resume_info = malloc ((n + 1) * sizeof (resume_info[0])); | |
928 | ||
929 | default_action.thread = -1; | |
930 | default_action.leave_stopped = 1; | |
931 | default_action.step = 0; | |
932 | default_action.sig = 0; | |
933 | ||
934 | p = &own_buf[5]; | |
935 | i = 0; | |
936 | while (*p) | |
937 | { | |
938 | p++; | |
939 | ||
940 | resume_info[i].leave_stopped = 0; | |
941 | ||
942 | if (p[0] == 's' || p[0] == 'S') | |
943 | resume_info[i].step = 1; | |
944 | else if (p[0] == 'c' || p[0] == 'C') | |
945 | resume_info[i].step = 0; | |
946 | else | |
947 | goto err; | |
948 | ||
949 | if (p[0] == 'S' || p[0] == 'C') | |
950 | { | |
951 | int sig; | |
952 | sig = strtol (p + 1, &q, 16); | |
953 | if (p == q) | |
954 | goto err; | |
955 | p = q; | |
956 | ||
957 | if (!target_signal_to_host_p (sig)) | |
958 | goto err; | |
959 | resume_info[i].sig = target_signal_to_host (sig); | |
960 | } | |
961 | else | |
962 | { | |
963 | resume_info[i].sig = 0; | |
964 | p = p + 1; | |
965 | } | |
966 | ||
967 | if (p[0] == 0) | |
968 | { | |
969 | resume_info[i].thread = -1; | |
970 | default_action = resume_info[i]; | |
971 | ||
972 | /* Note: we don't increment i here, we'll overwrite this entry | |
973 | the next time through. */ | |
974 | } | |
975 | else if (p[0] == ':') | |
976 | { | |
a06660f7 DJ |
977 | unsigned int gdb_id = strtoul (p + 1, &q, 16); |
978 | unsigned long thread_id; | |
979 | ||
64386c31 DJ |
980 | if (p == q) |
981 | goto err; | |
982 | p = q; | |
983 | if (p[0] != ';' && p[0] != 0) | |
984 | goto err; | |
985 | ||
a06660f7 DJ |
986 | thread_id = gdb_id_to_thread_id (gdb_id); |
987 | if (thread_id) | |
988 | resume_info[i].thread = thread_id; | |
989 | else | |
990 | goto err; | |
991 | ||
64386c31 DJ |
992 | i++; |
993 | } | |
994 | } | |
995 | ||
996 | resume_info[i] = default_action; | |
997 | ||
998 | /* Still used in occasional places in the backend. */ | |
999 | if (n == 1 && resume_info[0].thread != -1) | |
1000 | cont_thread = resume_info[0].thread; | |
1001 | else | |
1002 | cont_thread = -1; | |
dc3f8883 | 1003 | set_desired_inferior (0); |
64386c31 | 1004 | |
a20d5e98 | 1005 | enable_async_io (); |
64386c31 DJ |
1006 | (*the_target->resume) (resume_info); |
1007 | ||
1008 | free (resume_info); | |
1009 | ||
1010 | *signal = mywait (status, 1); | |
1011 | prepare_resume_reply (own_buf, *status, *signal); | |
a20d5e98 | 1012 | disable_async_io (); |
64386c31 DJ |
1013 | return; |
1014 | ||
1015 | err: | |
255e7678 | 1016 | write_enn (own_buf); |
64386c31 DJ |
1017 | free (resume_info); |
1018 | return; | |
1019 | } | |
1020 | ||
2d717e4f DJ |
1021 | /* Attach to a new program. Return 1 if successful, 0 if failure. */ |
1022 | int | |
1023 | handle_v_attach (char *own_buf, char *status, int *signal) | |
1024 | { | |
1025 | int pid; | |
1026 | ||
1027 | pid = strtol (own_buf + 8, NULL, 16); | |
1028 | if (pid != 0 && attach_inferior (pid, status, signal) == 0) | |
1029 | { | |
aeba519e PA |
1030 | /* Don't report shared library events after attaching, even if |
1031 | some libraries are preloaded. GDB will always poll the | |
1032 | library list. Avoids the "stopped by shared library event" | |
1033 | notice on the GDB side. */ | |
1034 | dlls_changed = 0; | |
2d717e4f DJ |
1035 | prepare_resume_reply (own_buf, *status, *signal); |
1036 | return 1; | |
1037 | } | |
1038 | else | |
1039 | { | |
1040 | write_enn (own_buf); | |
1041 | return 0; | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | /* Run a new program. Return 1 if successful, 0 if failure. */ | |
1046 | static int | |
1047 | handle_v_run (char *own_buf, char *status, int *signal) | |
1048 | { | |
1049 | char *p, **pp, *next_p, **new_argv; | |
1050 | int i, new_argc; | |
1051 | ||
1052 | new_argc = 0; | |
1053 | for (p = own_buf + strlen ("vRun;"); p && *p; p = strchr (p, ';')) | |
1054 | { | |
1055 | p++; | |
1056 | new_argc++; | |
1057 | } | |
1058 | ||
1059 | new_argv = malloc ((new_argc + 2) * sizeof (char *)); | |
1060 | i = 0; | |
1061 | for (p = own_buf + strlen ("vRun;"); *p; p = next_p) | |
1062 | { | |
1063 | next_p = strchr (p, ';'); | |
1064 | if (next_p == NULL) | |
1065 | next_p = p + strlen (p); | |
1066 | ||
1067 | if (i == 0 && p == next_p) | |
1068 | new_argv[i] = NULL; | |
1069 | else | |
1070 | { | |
1071 | new_argv[i] = malloc (1 + (next_p - p) / 2); | |
1072 | unhexify (new_argv[i], p, (next_p - p) / 2); | |
1073 | new_argv[i][(next_p - p) / 2] = '\0'; | |
1074 | } | |
1075 | ||
1076 | if (*next_p) | |
1077 | next_p++; | |
1078 | i++; | |
1079 | } | |
1080 | new_argv[i] = NULL; | |
1081 | ||
1082 | if (new_argv[0] == NULL) | |
1083 | { | |
1084 | if (program_argv == NULL) | |
1085 | { | |
1086 | write_enn (own_buf); | |
1087 | return 0; | |
1088 | } | |
1089 | ||
1090 | new_argv[0] = strdup (program_argv[0]); | |
1091 | } | |
1092 | ||
1093 | /* Free the old argv. */ | |
1094 | if (program_argv) | |
1095 | { | |
1096 | for (pp = program_argv; *pp != NULL; pp++) | |
1097 | free (*pp); | |
1098 | free (program_argv); | |
1099 | } | |
1100 | program_argv = new_argv; | |
1101 | ||
1102 | *signal = start_inferior (program_argv, status); | |
1103 | if (*status == 'T') | |
1104 | { | |
1105 | prepare_resume_reply (own_buf, *status, *signal); | |
1106 | return 1; | |
1107 | } | |
1108 | else | |
1109 | { | |
1110 | write_enn (own_buf); | |
1111 | return 0; | |
1112 | } | |
1113 | } | |
1114 | ||
64386c31 DJ |
1115 | /* Handle all of the extended 'v' packets. */ |
1116 | void | |
a6b151f1 DJ |
1117 | handle_v_requests (char *own_buf, char *status, int *signal, |
1118 | int packet_len, int *new_packet_len) | |
64386c31 | 1119 | { |
db42f210 | 1120 | if (!disable_packet_vCont) |
64386c31 | 1121 | { |
db42f210 PA |
1122 | if (strncmp (own_buf, "vCont;", 6) == 0) |
1123 | { | |
1124 | require_running (own_buf); | |
1125 | handle_v_cont (own_buf, status, signal); | |
1126 | return; | |
1127 | } | |
64386c31 | 1128 | |
db42f210 PA |
1129 | if (strncmp (own_buf, "vCont?", 6) == 0) |
1130 | { | |
1131 | strcpy (own_buf, "vCont;c;C;s;S"); | |
1132 | return; | |
1133 | } | |
64386c31 DJ |
1134 | } |
1135 | ||
a6b151f1 DJ |
1136 | if (strncmp (own_buf, "vFile:", 6) == 0 |
1137 | && handle_vFile (own_buf, packet_len, new_packet_len)) | |
1138 | return; | |
1139 | ||
2d717e4f DJ |
1140 | if (strncmp (own_buf, "vAttach;", 8) == 0) |
1141 | { | |
1142 | if (target_running ()) | |
1143 | { | |
fd96d250 PA |
1144 | fprintf (stderr, "Already debugging a process\n"); |
1145 | write_enn (own_buf); | |
1146 | return; | |
2d717e4f DJ |
1147 | } |
1148 | handle_v_attach (own_buf, status, signal); | |
1149 | return; | |
1150 | } | |
1151 | ||
1152 | if (strncmp (own_buf, "vRun;", 5) == 0) | |
1153 | { | |
1154 | if (target_running ()) | |
1155 | { | |
fd96d250 PA |
1156 | fprintf (stderr, "Already debugging a process\n"); |
1157 | write_enn (own_buf); | |
1158 | return; | |
2d717e4f DJ |
1159 | } |
1160 | handle_v_run (own_buf, status, signal); | |
1161 | return; | |
1162 | } | |
1163 | ||
64386c31 DJ |
1164 | /* Otherwise we didn't know what packet it was. Say we didn't |
1165 | understand it. */ | |
1166 | own_buf[0] = 0; | |
1167 | return; | |
1168 | } | |
1169 | ||
1170 | void | |
27524b67 | 1171 | myresume (char *own_buf, int step, int *signalp, char *statusp) |
64386c31 DJ |
1172 | { |
1173 | struct thread_resume resume_info[2]; | |
1174 | int n = 0; | |
a20d5e98 DJ |
1175 | int sig = *signalp; |
1176 | ||
1177 | set_desired_inferior (0); | |
64386c31 | 1178 | |
d592fa2f | 1179 | if (step || sig || (cont_thread != 0 && cont_thread != -1)) |
64386c31 DJ |
1180 | { |
1181 | resume_info[0].thread | |
1182 | = ((struct inferior_list_entry *) current_inferior)->id; | |
1183 | resume_info[0].step = step; | |
1184 | resume_info[0].sig = sig; | |
1185 | resume_info[0].leave_stopped = 0; | |
1186 | n++; | |
1187 | } | |
1188 | resume_info[n].thread = -1; | |
1189 | resume_info[n].step = 0; | |
1190 | resume_info[n].sig = 0; | |
d592fa2f | 1191 | resume_info[n].leave_stopped = (cont_thread != 0 && cont_thread != -1); |
64386c31 | 1192 | |
a20d5e98 | 1193 | enable_async_io (); |
64386c31 | 1194 | (*the_target->resume) (resume_info); |
a20d5e98 DJ |
1195 | *signalp = mywait (statusp, 1); |
1196 | prepare_resume_reply (own_buf, *statusp, *signalp); | |
1197 | disable_async_io (); | |
64386c31 DJ |
1198 | } |
1199 | ||
dd24457d DJ |
1200 | static void |
1201 | gdbserver_version (void) | |
1202 | { | |
c16158bc | 1203 | printf ("GNU gdbserver %s%s\n" |
255e7678 | 1204 | "Copyright (C) 2007 Free Software Foundation, Inc.\n" |
dd24457d DJ |
1205 | "gdbserver is free software, covered by the GNU General Public License.\n" |
1206 | "This gdbserver was configured as \"%s\"\n", | |
c16158bc | 1207 | PKGVERSION, version, host_name); |
dd24457d DJ |
1208 | } |
1209 | ||
0bc68c49 | 1210 | static void |
c16158bc | 1211 | gdbserver_usage (FILE *stream) |
0bc68c49 | 1212 | { |
c16158bc JM |
1213 | fprintf (stream, "Usage:\tgdbserver [OPTIONS] COMM PROG [ARGS ...]\n" |
1214 | "\tgdbserver [OPTIONS] --attach COMM PID\n" | |
1215 | "\tgdbserver [OPTIONS] --multi COMM\n" | |
1216 | "\n" | |
1217 | "COMM may either be a tty device (for serial debugging), or \n" | |
1218 | "HOST:PORT to listen for a TCP connection.\n" | |
1219 | "\n" | |
1220 | "Options:\n" | |
1221 | " --debug\t\tEnable debugging output.\n" | |
8e4c5421 | 1222 | " --version\t\tDisplay version information and exit.\n" |
c16158bc JM |
1223 | " --wrapper WRAPPER --\tRun WRAPPER to start new programs.\n"); |
1224 | if (REPORT_BUGS_TO[0] && stream == stdout) | |
1225 | fprintf (stream, "Report bugs to \"%s\".\n", REPORT_BUGS_TO); | |
0bc68c49 DJ |
1226 | } |
1227 | ||
db42f210 PA |
1228 | static void |
1229 | gdbserver_show_disableable (FILE *stream) | |
1230 | { | |
1231 | fprintf (stream, "Disableable packets:\n" | |
1232 | " vCont \tAll vCont packets\n" | |
1233 | " qC \tQuerying the current thread\n" | |
1234 | " qfThreadInfo\tThread listing\n" | |
1235 | " Tthread \tPassing the thread specifier in the T stop reply packet\n" | |
1236 | " threads \tAll of the above\n"); | |
1237 | } | |
1238 | ||
1239 | ||
2d717e4f DJ |
1240 | #undef require_running |
1241 | #define require_running(BUF) \ | |
1242 | if (!target_running ()) \ | |
1243 | { \ | |
1244 | write_enn (BUF); \ | |
1245 | break; \ | |
1246 | } | |
1247 | ||
c906108c | 1248 | int |
da85418c | 1249 | main (int argc, char *argv[]) |
c906108c | 1250 | { |
f450004a | 1251 | char ch, status, *own_buf; |
7fb85e41 | 1252 | unsigned char *mem_buf; |
c906108c | 1253 | int i = 0; |
fc620387 | 1254 | int signal; |
c906108c SS |
1255 | unsigned int len; |
1256 | CORE_ADDR mem_addr; | |
0729219d DJ |
1257 | int bad_attach; |
1258 | int pid; | |
2d717e4f DJ |
1259 | char *arg_end, *port; |
1260 | char **next_arg = &argv[1]; | |
1261 | int multi_mode = 0; | |
1262 | int attach = 0; | |
1263 | int was_running; | |
c906108c | 1264 | |
2d717e4f | 1265 | while (*next_arg != NULL && **next_arg == '-') |
dd24457d | 1266 | { |
2d717e4f DJ |
1267 | if (strcmp (*next_arg, "--version") == 0) |
1268 | { | |
1269 | gdbserver_version (); | |
1270 | exit (0); | |
1271 | } | |
1272 | else if (strcmp (*next_arg, "--help") == 0) | |
1273 | { | |
c16158bc | 1274 | gdbserver_usage (stdout); |
2d717e4f DJ |
1275 | exit (0); |
1276 | } | |
1277 | else if (strcmp (*next_arg, "--attach") == 0) | |
1278 | attach = 1; | |
1279 | else if (strcmp (*next_arg, "--multi") == 0) | |
1280 | multi_mode = 1; | |
ccd213ac DJ |
1281 | else if (strcmp (*next_arg, "--wrapper") == 0) |
1282 | { | |
1283 | next_arg++; | |
1284 | ||
1285 | wrapper_argv = next_arg; | |
1286 | while (*next_arg != NULL && strcmp (*next_arg, "--") != 0) | |
1287 | next_arg++; | |
1288 | ||
1289 | if (next_arg == wrapper_argv || *next_arg == NULL) | |
1290 | { | |
c16158bc | 1291 | gdbserver_usage (stderr); |
ccd213ac DJ |
1292 | exit (1); |
1293 | } | |
1294 | ||
1295 | /* Consume the "--". */ | |
1296 | *next_arg = NULL; | |
1297 | } | |
2d717e4f DJ |
1298 | else if (strcmp (*next_arg, "--debug") == 0) |
1299 | debug_threads = 1; | |
db42f210 PA |
1300 | else if (strcmp (*next_arg, "--disable-packet") == 0) |
1301 | { | |
1302 | gdbserver_show_disableable (stdout); | |
1303 | exit (0); | |
1304 | } | |
1305 | else if (strncmp (*next_arg, | |
1306 | "--disable-packet=", | |
1307 | sizeof ("--disable-packet=") - 1) == 0) | |
1308 | { | |
1309 | char *packets, *tok; | |
1310 | ||
1311 | packets = *next_arg += sizeof ("--disable-packet=") - 1; | |
1312 | for (tok = strtok (packets, ","); | |
1313 | tok != NULL; | |
1314 | tok = strtok (NULL, ",")) | |
1315 | { | |
1316 | if (strcmp ("vCont", tok) == 0) | |
1317 | disable_packet_vCont = 1; | |
1318 | else if (strcmp ("Tthread", tok) == 0) | |
1319 | disable_packet_Tthread = 1; | |
1320 | else if (strcmp ("qC", tok) == 0) | |
1321 | disable_packet_qC = 1; | |
1322 | else if (strcmp ("qfThreadInfo", tok) == 0) | |
1323 | disable_packet_qfThreadInfo = 1; | |
1324 | else if (strcmp ("threads", tok) == 0) | |
1325 | { | |
1326 | disable_packet_vCont = 1; | |
1327 | disable_packet_Tthread = 1; | |
1328 | disable_packet_qC = 1; | |
1329 | disable_packet_qfThreadInfo = 1; | |
1330 | } | |
1331 | else | |
1332 | { | |
1333 | fprintf (stderr, "Don't know how to disable \"%s\".\n\n", | |
1334 | tok); | |
1335 | gdbserver_show_disableable (stderr); | |
1336 | exit (1); | |
1337 | } | |
1338 | } | |
1339 | } | |
2d717e4f DJ |
1340 | else |
1341 | { | |
1342 | fprintf (stderr, "Unknown argument: %s\n", *next_arg); | |
1343 | exit (1); | |
1344 | } | |
dd24457d | 1345 | |
2d717e4f DJ |
1346 | next_arg++; |
1347 | continue; | |
dd24457d DJ |
1348 | } |
1349 | ||
c5aa993b | 1350 | if (setjmp (toplevel)) |
c906108c | 1351 | { |
c5aa993b JM |
1352 | fprintf (stderr, "Exiting\n"); |
1353 | exit (1); | |
c906108c SS |
1354 | } |
1355 | ||
2d717e4f DJ |
1356 | port = *next_arg; |
1357 | next_arg++; | |
1358 | if (port == NULL || (!attach && !multi_mode && *next_arg == NULL)) | |
1359 | { | |
c16158bc | 1360 | gdbserver_usage (stderr); |
2d717e4f DJ |
1361 | exit (1); |
1362 | } | |
1363 | ||
0729219d DJ |
1364 | bad_attach = 0; |
1365 | pid = 0; | |
2d717e4f DJ |
1366 | |
1367 | /* --attach used to come after PORT, so allow it there for | |
1368 | compatibility. */ | |
1369 | if (*next_arg != NULL && strcmp (*next_arg, "--attach") == 0) | |
45b7b345 | 1370 | { |
2d717e4f DJ |
1371 | attach = 1; |
1372 | next_arg++; | |
45b7b345 DJ |
1373 | } |
1374 | ||
2d717e4f DJ |
1375 | if (attach |
1376 | && (*next_arg == NULL | |
1377 | || (*next_arg)[0] == '\0' | |
1378 | || (pid = strtoul (*next_arg, &arg_end, 0)) == 0 | |
1379 | || *arg_end != '\0' | |
1380 | || next_arg[1] != NULL)) | |
1381 | bad_attach = 1; | |
1382 | ||
1383 | if (bad_attach) | |
dd24457d | 1384 | { |
c16158bc | 1385 | gdbserver_usage (stderr); |
dd24457d DJ |
1386 | exit (1); |
1387 | } | |
c906108c | 1388 | |
a20d5e98 | 1389 | initialize_async_io (); |
4ce44c66 JM |
1390 | initialize_low (); |
1391 | ||
255e7678 | 1392 | own_buf = malloc (PBUFSIZ + 1); |
7fb85e41 | 1393 | mem_buf = malloc (PBUFSIZ); |
0a30fbc4 | 1394 | |
2d717e4f | 1395 | if (pid == 0 && *next_arg != NULL) |
45b7b345 | 1396 | { |
2d717e4f DJ |
1397 | int i, n; |
1398 | ||
1399 | n = argc - (next_arg - argv); | |
1400 | program_argv = malloc (sizeof (char *) * (n + 1)); | |
1401 | for (i = 0; i < n; i++) | |
1402 | program_argv[i] = strdup (next_arg[i]); | |
1403 | program_argv[i] = NULL; | |
1404 | ||
45b7b345 | 1405 | /* Wait till we are at first instruction in program. */ |
2d717e4f | 1406 | signal = start_inferior (program_argv, &status); |
c906108c | 1407 | |
c588c53c MS |
1408 | /* We are now (hopefully) stopped at the first instruction of |
1409 | the target process. This assumes that the target process was | |
1410 | successfully created. */ | |
45b7b345 | 1411 | } |
2d717e4f DJ |
1412 | else if (pid != 0) |
1413 | { | |
1414 | if (attach_inferior (pid, &status, &signal) == -1) | |
1415 | error ("Attaching not supported on this target"); | |
1416 | ||
1417 | /* Otherwise succeeded. */ | |
1418 | } | |
45b7b345 DJ |
1419 | else |
1420 | { | |
2d717e4f DJ |
1421 | status = 'W'; |
1422 | signal = 0; | |
45b7b345 | 1423 | } |
c906108c | 1424 | |
311de423 PA |
1425 | /* Don't report shared library events on the initial connection, |
1426 | even if some libraries are preloaded. Avoids the "stopped by | |
1427 | shared library event" notice on gdb side. */ | |
1428 | dlls_changed = 0; | |
1429 | ||
8264bb58 DJ |
1430 | if (setjmp (toplevel)) |
1431 | { | |
1432 | fprintf (stderr, "Killing inferior\n"); | |
1433 | kill_inferior (); | |
1434 | exit (1); | |
1435 | } | |
1436 | ||
c588c53c | 1437 | if (status == 'W' || status == 'X') |
2d717e4f DJ |
1438 | was_running = 0; |
1439 | else | |
1440 | was_running = 1; | |
1441 | ||
1442 | if (!was_running && !multi_mode) | |
c588c53c | 1443 | { |
2d717e4f | 1444 | fprintf (stderr, "No program to debug. GDBserver exiting.\n"); |
c588c53c MS |
1445 | exit (1); |
1446 | } | |
1447 | ||
c906108c SS |
1448 | while (1) |
1449 | { | |
2d717e4f | 1450 | remote_open (port); |
c906108c | 1451 | |
c5aa993b | 1452 | restart: |
2d717e4f DJ |
1453 | if (setjmp (toplevel) != 0) |
1454 | { | |
1455 | /* An error occurred. */ | |
1456 | if (response_needed) | |
1457 | { | |
1458 | write_enn (own_buf); | |
1459 | putpkt (own_buf); | |
1460 | } | |
1461 | } | |
1462 | ||
a20d5e98 | 1463 | disable_async_io (); |
2d717e4f | 1464 | while (!exit_requested) |
c906108c SS |
1465 | { |
1466 | unsigned char sig; | |
01f9e8fa DJ |
1467 | int packet_len; |
1468 | int new_packet_len = -1; | |
1469 | ||
2d717e4f | 1470 | response_needed = 0; |
01f9e8fa DJ |
1471 | packet_len = getpkt (own_buf); |
1472 | if (packet_len <= 0) | |
1473 | break; | |
2d717e4f | 1474 | response_needed = 1; |
01f9e8fa | 1475 | |
c906108c SS |
1476 | i = 0; |
1477 | ch = own_buf[i++]; | |
1478 | switch (ch) | |
1479 | { | |
ce3a066d | 1480 | case 'q': |
0e7f50da | 1481 | handle_query (own_buf, packet_len, &new_packet_len); |
ce3a066d | 1482 | break; |
89be2091 DJ |
1483 | case 'Q': |
1484 | handle_general_set (own_buf); | |
1485 | break; | |
6ad8ae5c | 1486 | case 'D': |
2d717e4f | 1487 | require_running (own_buf); |
6ad8ae5c | 1488 | fprintf (stderr, "Detaching from inferior\n"); |
444d6139 | 1489 | if (detach_inferior () != 0) |
2d717e4f | 1490 | write_enn (own_buf); |
444d6139 PA |
1491 | else |
1492 | { | |
1493 | write_ok (own_buf); | |
6ad8ae5c | 1494 | |
2d717e4f DJ |
1495 | if (extended_protocol) |
1496 | { | |
1497 | /* Treat this like a normal program exit. */ | |
1498 | signal = 0; | |
1499 | status = 'W'; | |
1500 | } | |
1501 | else | |
1502 | { | |
1503 | putpkt (own_buf); | |
1504 | remote_close (); | |
6ad8ae5c | 1505 | |
2d717e4f DJ |
1506 | /* If we are attached, then we can exit. Otherwise, we |
1507 | need to hang around doing nothing, until the child | |
1508 | is gone. */ | |
1509 | if (!attached) | |
1510 | join_inferior (); | |
1511 | ||
1512 | exit (0); | |
1513 | } | |
444d6139 | 1514 | } |
2d717e4f | 1515 | break; |
c906108c | 1516 | case '!': |
2d717e4f DJ |
1517 | extended_protocol = 1; |
1518 | write_ok (own_buf); | |
c906108c SS |
1519 | break; |
1520 | case '?': | |
1521 | prepare_resume_reply (own_buf, status, signal); | |
1522 | break; | |
1523 | case 'H': | |
a06660f7 | 1524 | if (own_buf[1] == 'c' || own_buf[1] == 'g' || own_buf[1] == 's') |
c906108c | 1525 | { |
a06660f7 DJ |
1526 | unsigned long gdb_id, thread_id; |
1527 | ||
2d717e4f | 1528 | require_running (own_buf); |
a06660f7 | 1529 | gdb_id = strtoul (&own_buf[2], NULL, 16); |
2d717e4f DJ |
1530 | if (gdb_id == 0 || gdb_id == -1) |
1531 | thread_id = gdb_id; | |
1532 | else | |
a06660f7 | 1533 | { |
2d717e4f DJ |
1534 | thread_id = gdb_id_to_thread_id (gdb_id); |
1535 | if (thread_id == 0) | |
1536 | { | |
1537 | write_enn (own_buf); | |
1538 | break; | |
1539 | } | |
a06660f7 DJ |
1540 | } |
1541 | ||
1542 | if (own_buf[1] == 'g') | |
1543 | { | |
1544 | general_thread = thread_id; | |
1545 | set_desired_inferior (1); | |
1546 | } | |
1547 | else if (own_buf[1] == 'c') | |
1548 | cont_thread = thread_id; | |
1549 | else if (own_buf[1] == 's') | |
1550 | step_thread = thread_id; | |
1551 | ||
0d62e5e8 | 1552 | write_ok (own_buf); |
a06660f7 DJ |
1553 | } |
1554 | else | |
1555 | { | |
c906108c SS |
1556 | /* Silently ignore it so that gdb can extend the protocol |
1557 | without compatibility headaches. */ | |
1558 | own_buf[0] = '\0'; | |
c906108c SS |
1559 | } |
1560 | break; | |
1561 | case 'g': | |
2d717e4f | 1562 | require_running (own_buf); |
0d62e5e8 | 1563 | set_desired_inferior (1); |
0a30fbc4 | 1564 | registers_to_string (own_buf); |
c906108c SS |
1565 | break; |
1566 | case 'G': | |
2d717e4f | 1567 | require_running (own_buf); |
0d62e5e8 | 1568 | set_desired_inferior (1); |
0a30fbc4 | 1569 | registers_from_string (&own_buf[1]); |
c906108c SS |
1570 | write_ok (own_buf); |
1571 | break; | |
1572 | case 'm': | |
2d717e4f | 1573 | require_running (own_buf); |
c906108c | 1574 | decode_m_packet (&own_buf[1], &mem_addr, &len); |
c3e735a6 DJ |
1575 | if (read_inferior_memory (mem_addr, mem_buf, len) == 0) |
1576 | convert_int_to_ascii (mem_buf, own_buf, len); | |
1577 | else | |
1578 | write_enn (own_buf); | |
c906108c SS |
1579 | break; |
1580 | case 'M': | |
2d717e4f | 1581 | require_running (own_buf); |
c906108c SS |
1582 | decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf); |
1583 | if (write_inferior_memory (mem_addr, mem_buf, len) == 0) | |
1584 | write_ok (own_buf); | |
1585 | else | |
1586 | write_enn (own_buf); | |
1587 | break; | |
01f9e8fa | 1588 | case 'X': |
2d717e4f | 1589 | require_running (own_buf); |
01f9e8fa DJ |
1590 | if (decode_X_packet (&own_buf[1], packet_len - 1, |
1591 | &mem_addr, &len, mem_buf) < 0 | |
1592 | || write_inferior_memory (mem_addr, mem_buf, len) != 0) | |
1593 | write_enn (own_buf); | |
1594 | else | |
1595 | write_ok (own_buf); | |
1596 | break; | |
c906108c | 1597 | case 'C': |
2d717e4f | 1598 | require_running (own_buf); |
c906108c | 1599 | convert_ascii_to_int (own_buf + 1, &sig, 1); |
0e98d0a7 DJ |
1600 | if (target_signal_to_host_p (sig)) |
1601 | signal = target_signal_to_host (sig); | |
1602 | else | |
1603 | signal = 0; | |
27524b67 | 1604 | myresume (own_buf, 0, &signal, &status); |
c906108c SS |
1605 | break; |
1606 | case 'S': | |
2d717e4f | 1607 | require_running (own_buf); |
c906108c | 1608 | convert_ascii_to_int (own_buf + 1, &sig, 1); |
0e98d0a7 DJ |
1609 | if (target_signal_to_host_p (sig)) |
1610 | signal = target_signal_to_host (sig); | |
1611 | else | |
1612 | signal = 0; | |
27524b67 | 1613 | myresume (own_buf, 1, &signal, &status); |
c906108c SS |
1614 | break; |
1615 | case 'c': | |
2d717e4f | 1616 | require_running (own_buf); |
a20d5e98 | 1617 | signal = 0; |
27524b67 | 1618 | myresume (own_buf, 0, &signal, &status); |
c906108c SS |
1619 | break; |
1620 | case 's': | |
2d717e4f | 1621 | require_running (own_buf); |
a20d5e98 | 1622 | signal = 0; |
27524b67 | 1623 | myresume (own_buf, 1, &signal, &status); |
c906108c | 1624 | break; |
e013ee27 OF |
1625 | case 'Z': |
1626 | { | |
1627 | char *lenptr; | |
1628 | char *dataptr; | |
1629 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1630 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1631 | char type = own_buf[1]; | |
1632 | ||
1633 | if (the_target->insert_watchpoint == NULL | |
1634 | || (type < '2' || type > '4')) | |
1635 | { | |
1636 | /* No watchpoint support or not a watchpoint command; | |
1637 | unrecognized either way. */ | |
1638 | own_buf[0] = '\0'; | |
1639 | } | |
1640 | else | |
1641 | { | |
1642 | int res; | |
1643 | ||
2d717e4f | 1644 | require_running (own_buf); |
e013ee27 OF |
1645 | res = (*the_target->insert_watchpoint) (type, addr, len); |
1646 | if (res == 0) | |
1647 | write_ok (own_buf); | |
1648 | else if (res == 1) | |
1649 | /* Unsupported. */ | |
1650 | own_buf[0] = '\0'; | |
1651 | else | |
1652 | write_enn (own_buf); | |
1653 | } | |
1654 | break; | |
1655 | } | |
1656 | case 'z': | |
1657 | { | |
1658 | char *lenptr; | |
1659 | char *dataptr; | |
1660 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1661 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1662 | char type = own_buf[1]; | |
1663 | ||
1664 | if (the_target->remove_watchpoint == NULL | |
1665 | || (type < '2' || type > '4')) | |
1666 | { | |
1667 | /* No watchpoint support or not a watchpoint command; | |
1668 | unrecognized either way. */ | |
1669 | own_buf[0] = '\0'; | |
1670 | } | |
1671 | else | |
1672 | { | |
1673 | int res; | |
1674 | ||
2d717e4f | 1675 | require_running (own_buf); |
e013ee27 OF |
1676 | res = (*the_target->remove_watchpoint) (type, addr, len); |
1677 | if (res == 0) | |
1678 | write_ok (own_buf); | |
1679 | else if (res == 1) | |
1680 | /* Unsupported. */ | |
1681 | own_buf[0] = '\0'; | |
1682 | else | |
1683 | write_enn (own_buf); | |
1684 | } | |
1685 | break; | |
1686 | } | |
c906108c | 1687 | case 'k': |
2d717e4f DJ |
1688 | response_needed = 0; |
1689 | if (!target_running ()) | |
1690 | /* The packet we received doesn't make sense - but we | |
1691 | can't reply to it, either. */ | |
1692 | goto restart; | |
1693 | ||
c906108c SS |
1694 | fprintf (stderr, "Killing inferior\n"); |
1695 | kill_inferior (); | |
2d717e4f DJ |
1696 | |
1697 | /* When using the extended protocol, we wait with no | |
1698 | program running. The traditional protocol will exit | |
1699 | instead. */ | |
c906108c SS |
1700 | if (extended_protocol) |
1701 | { | |
2d717e4f DJ |
1702 | status = 'X'; |
1703 | signal = TARGET_SIGNAL_KILL; | |
1704 | was_running = 0; | |
c906108c | 1705 | goto restart; |
c906108c SS |
1706 | } |
1707 | else | |
1708 | { | |
1709 | exit (0); | |
1710 | break; | |
1711 | } | |
1712 | case 'T': | |
a06660f7 DJ |
1713 | { |
1714 | unsigned long gdb_id, thread_id; | |
1715 | ||
2d717e4f | 1716 | require_running (own_buf); |
a06660f7 DJ |
1717 | gdb_id = strtoul (&own_buf[1], NULL, 16); |
1718 | thread_id = gdb_id_to_thread_id (gdb_id); | |
1719 | if (thread_id == 0) | |
1720 | { | |
1721 | write_enn (own_buf); | |
1722 | break; | |
1723 | } | |
1724 | ||
1725 | if (mythread_alive (thread_id)) | |
1726 | write_ok (own_buf); | |
1727 | else | |
1728 | write_enn (own_buf); | |
1729 | } | |
c906108c SS |
1730 | break; |
1731 | case 'R': | |
2d717e4f DJ |
1732 | response_needed = 0; |
1733 | ||
c906108c | 1734 | /* Restarting the inferior is only supported in the |
c5aa993b | 1735 | extended protocol. */ |
c906108c SS |
1736 | if (extended_protocol) |
1737 | { | |
2d717e4f DJ |
1738 | if (target_running ()) |
1739 | kill_inferior (); | |
c906108c SS |
1740 | fprintf (stderr, "GDBserver restarting\n"); |
1741 | ||
1742 | /* Wait till we are at 1st instruction in prog. */ | |
2d717e4f DJ |
1743 | if (program_argv != NULL) |
1744 | signal = start_inferior (program_argv, &status); | |
1745 | else | |
1746 | { | |
1747 | status = 'X'; | |
1748 | signal = TARGET_SIGNAL_KILL; | |
1749 | } | |
c906108c | 1750 | goto restart; |
c906108c SS |
1751 | } |
1752 | else | |
1753 | { | |
1754 | /* It is a request we don't understand. Respond with an | |
1755 | empty packet so that gdb knows that we don't support this | |
1756 | request. */ | |
1757 | own_buf[0] = '\0'; | |
1758 | break; | |
1759 | } | |
64386c31 DJ |
1760 | case 'v': |
1761 | /* Extended (long) request. */ | |
a6b151f1 DJ |
1762 | handle_v_requests (own_buf, &status, &signal, |
1763 | packet_len, &new_packet_len); | |
64386c31 | 1764 | break; |
a6b151f1 | 1765 | |
c906108c SS |
1766 | default: |
1767 | /* It is a request we don't understand. Respond with an | |
c5aa993b JM |
1768 | empty packet so that gdb knows that we don't support this |
1769 | request. */ | |
c906108c SS |
1770 | own_buf[0] = '\0'; |
1771 | break; | |
1772 | } | |
1773 | ||
01f9e8fa DJ |
1774 | if (new_packet_len != -1) |
1775 | putpkt_binary (own_buf, new_packet_len); | |
1776 | else | |
1777 | putpkt (own_buf); | |
c906108c | 1778 | |
2d717e4f DJ |
1779 | response_needed = 0; |
1780 | ||
1781 | if (was_running && (status == 'W' || status == 'X')) | |
c906108c | 1782 | { |
2d717e4f | 1783 | was_running = 0; |
c906108c | 1784 | |
2d717e4f DJ |
1785 | if (status == 'W') |
1786 | fprintf (stderr, | |
1787 | "\nChild exited with status %d\n", signal); | |
1788 | if (status == 'X') | |
1789 | fprintf (stderr, "\nChild terminated with signal = 0x%x (%s)\n", | |
1790 | target_signal_to_host (signal), | |
1791 | target_signal_to_name (signal)); | |
1792 | ||
1793 | if (extended_protocol) | |
1794 | goto restart; | |
c906108c SS |
1795 | else |
1796 | { | |
1797 | fprintf (stderr, "GDBserver exiting\n"); | |
1798 | exit (0); | |
1799 | } | |
1800 | } | |
c906108c | 1801 | |
2d717e4f DJ |
1802 | if (status != 'W' && status != 'X') |
1803 | was_running = 1; | |
1804 | } | |
c906108c | 1805 | |
2d717e4f DJ |
1806 | /* If an exit was requested (using the "monitor exit" command), |
1807 | terminate now. The only other way to get here is for | |
1808 | getpkt to fail; close the connection and reopen it at the | |
1809 | top of the loop. */ | |
c906108c | 1810 | |
2d717e4f | 1811 | if (exit_requested) |
c906108c SS |
1812 | { |
1813 | remote_close (); | |
2d717e4f DJ |
1814 | if (attached && target_running ()) |
1815 | detach_inferior (); | |
1816 | else if (target_running ()) | |
1817 | kill_inferior (); | |
c906108c SS |
1818 | exit (0); |
1819 | } | |
1820 | else | |
1821 | { | |
45b7b345 DJ |
1822 | fprintf (stderr, "Remote side has terminated connection. " |
1823 | "GDBserver will reopen the connection.\n"); | |
c906108c SS |
1824 | remote_close (); |
1825 | } | |
1826 | } | |
1827 | } |