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 |
a9fa9f7d | 31 | |
a1928bad DJ |
32 | unsigned long cont_thread; |
33 | unsigned long general_thread; | |
34 | unsigned long step_thread; | |
35 | unsigned long thread_from_wait; | |
36 | unsigned long old_thread_from_wait; | |
0d62e5e8 DJ |
37 | int server_waiting; |
38 | ||
2d717e4f DJ |
39 | static int extended_protocol; |
40 | static int attached; | |
41 | static int response_needed; | |
42 | static int exit_requested; | |
43 | ||
ccd213ac | 44 | static char **program_argv, **wrapper_argv; |
2d717e4f | 45 | |
c74d0ad8 DJ |
46 | /* Enable miscellaneous debugging output. The name is historical - it |
47 | was originally used to debug LinuxThreads support. */ | |
48 | int debug_threads; | |
49 | ||
89be2091 DJ |
50 | int pass_signals[TARGET_SIGNAL_LAST]; |
51 | ||
c906108c | 52 | jmp_buf toplevel; |
c906108c | 53 | |
9b4b61c8 UW |
54 | const char *gdbserver_xmltarget; |
55 | ||
a9fa9f7d DJ |
56 | /* The PID of the originally created or attached inferior. Used to |
57 | send signals to the process when GDB sends us an asynchronous interrupt | |
58 | (user hitting Control-C in the client), and to wait for the child to exit | |
59 | when no longer debugging it. */ | |
60 | ||
a1928bad | 61 | unsigned long signal_pid; |
a9fa9f7d | 62 | |
290fadea RS |
63 | #ifdef SIGTTOU |
64 | /* A file descriptor for the controlling terminal. */ | |
65 | int terminal_fd; | |
66 | ||
67 | /* TERMINAL_FD's original foreground group. */ | |
68 | pid_t old_foreground_pgrp; | |
69 | ||
db42f210 PA |
70 | /* Set if you want to disable optional thread related packets support |
71 | in gdbserver, for the sake of testing GDB against stubs that don't | |
72 | support them. */ | |
73 | int disable_packet_vCont; | |
74 | int disable_packet_Tthread; | |
75 | int disable_packet_qC; | |
76 | int disable_packet_qfThreadInfo; | |
77 | ||
290fadea RS |
78 | /* Hand back terminal ownership to the original foreground group. */ |
79 | ||
80 | static void | |
81 | restore_old_foreground_pgrp (void) | |
82 | { | |
83 | tcsetpgrp (terminal_fd, old_foreground_pgrp); | |
84 | } | |
85 | #endif | |
86 | ||
2d717e4f DJ |
87 | static int |
88 | target_running (void) | |
89 | { | |
90 | return all_threads.head != NULL; | |
91 | } | |
92 | ||
fc620387 | 93 | static int |
ccd213ac | 94 | start_inferior (char **argv, char *statusptr) |
c906108c | 95 | { |
ccd213ac | 96 | char **new_argv = argv; |
2d717e4f DJ |
97 | attached = 0; |
98 | ||
ccd213ac DJ |
99 | if (wrapper_argv != NULL) |
100 | { | |
101 | int i, count = 1; | |
102 | ||
103 | for (i = 0; wrapper_argv[i] != NULL; i++) | |
104 | count++; | |
105 | for (i = 0; argv[i] != NULL; i++) | |
106 | count++; | |
107 | new_argv = alloca (sizeof (char *) * count); | |
108 | count = 0; | |
109 | for (i = 0; wrapper_argv[i] != NULL; i++) | |
110 | new_argv[count++] = wrapper_argv[i]; | |
111 | for (i = 0; argv[i] != NULL; i++) | |
112 | new_argv[count++] = argv[i]; | |
113 | new_argv[count] = NULL; | |
114 | } | |
115 | ||
b80864fb | 116 | #ifdef SIGTTOU |
a9fa9f7d DJ |
117 | signal (SIGTTOU, SIG_DFL); |
118 | signal (SIGTTIN, SIG_DFL); | |
b80864fb | 119 | #endif |
a9fa9f7d | 120 | |
ccd213ac | 121 | signal_pid = create_inferior (new_argv[0], new_argv); |
0d62e5e8 | 122 | |
c588c53c MS |
123 | /* FIXME: we don't actually know at this point that the create |
124 | actually succeeded. We won't know that until we wait. */ | |
a1928bad | 125 | fprintf (stderr, "Process %s created; pid = %ld\n", argv[0], |
a9fa9f7d | 126 | signal_pid); |
b80864fb | 127 | fflush (stderr); |
a9fa9f7d | 128 | |
b80864fb | 129 | #ifdef SIGTTOU |
a9fa9f7d DJ |
130 | signal (SIGTTOU, SIG_IGN); |
131 | signal (SIGTTIN, SIG_IGN); | |
290fadea RS |
132 | terminal_fd = fileno (stderr); |
133 | old_foreground_pgrp = tcgetpgrp (terminal_fd); | |
134 | tcsetpgrp (terminal_fd, signal_pid); | |
135 | atexit (restore_old_foreground_pgrp); | |
b80864fb | 136 | #endif |
c906108c | 137 | |
ccd213ac DJ |
138 | if (wrapper_argv != NULL) |
139 | { | |
140 | struct thread_resume resume_info; | |
141 | int sig; | |
142 | ||
143 | resume_info.thread = -1; | |
144 | resume_info.step = 0; | |
145 | resume_info.sig = 0; | |
146 | resume_info.leave_stopped = 0; | |
147 | ||
148 | sig = mywait (statusptr, 0); | |
149 | if (*statusptr != 'T') | |
150 | return sig; | |
151 | ||
152 | do | |
153 | { | |
154 | (*the_target->resume) (&resume_info); | |
155 | ||
156 | sig = mywait (statusptr, 0); | |
157 | if (*statusptr != 'T') | |
158 | return sig; | |
159 | } | |
160 | while (sig != TARGET_SIGNAL_TRAP); | |
161 | ||
162 | return sig; | |
163 | } | |
164 | ||
c588c53c MS |
165 | /* Wait till we are at 1st instruction in program, return signal |
166 | number (assuming success). */ | |
0d62e5e8 | 167 | return mywait (statusptr, 0); |
c906108c SS |
168 | } |
169 | ||
45b7b345 | 170 | static int |
fc620387 | 171 | attach_inferior (int pid, char *statusptr, int *sigptr) |
45b7b345 DJ |
172 | { |
173 | /* myattach should return -1 if attaching is unsupported, | |
174 | 0 if it succeeded, and call error() otherwise. */ | |
a9fa9f7d | 175 | |
45b7b345 DJ |
176 | if (myattach (pid) != 0) |
177 | return -1; | |
178 | ||
2d717e4f DJ |
179 | attached = 1; |
180 | ||
6910d122 | 181 | fprintf (stderr, "Attached; pid = %d\n", pid); |
b80864fb | 182 | fflush (stderr); |
6910d122 | 183 | |
a9fa9f7d DJ |
184 | /* FIXME - It may be that we should get the SIGNAL_PID from the |
185 | attach function, so that it can be the main thread instead of | |
186 | whichever we were told to attach to. */ | |
187 | signal_pid = pid; | |
188 | ||
0d62e5e8 | 189 | *sigptr = mywait (statusptr, 0); |
45b7b345 | 190 | |
9db87ebd DJ |
191 | /* GDB knows to ignore the first SIGSTOP after attaching to a running |
192 | process using the "attach" command, but this is different; it's | |
193 | just using "target remote". Pretend it's just starting up. */ | |
b80864fb DJ |
194 | if (*statusptr == 'T' && *sigptr == TARGET_SIGNAL_STOP) |
195 | *sigptr = TARGET_SIGNAL_TRAP; | |
9db87ebd | 196 | |
45b7b345 DJ |
197 | return 0; |
198 | } | |
199 | ||
c906108c | 200 | extern int remote_debug; |
ce3a066d | 201 | |
0876f84a DJ |
202 | /* Decode a qXfer read request. Return 0 if everything looks OK, |
203 | or -1 otherwise. */ | |
204 | ||
205 | static int | |
206 | decode_xfer_read (char *buf, char **annex, CORE_ADDR *ofs, unsigned int *len) | |
207 | { | |
208 | /* Extract and NUL-terminate the annex. */ | |
209 | *annex = buf; | |
210 | while (*buf && *buf != ':') | |
211 | buf++; | |
212 | if (*buf == '\0') | |
213 | return -1; | |
214 | *buf++ = 0; | |
215 | ||
0e7f50da | 216 | /* After the read marker and annex, qXfer looks like a |
0876f84a DJ |
217 | traditional 'm' packet. */ |
218 | decode_m_packet (buf, ofs, len); | |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
223 | /* Write the response to a successful qXfer read. Returns the | |
224 | length of the (binary) data stored in BUF, corresponding | |
225 | to as much of DATA/LEN as we could fit. IS_MORE controls | |
226 | the first character of the response. */ | |
227 | static int | |
23181151 | 228 | write_qxfer_response (char *buf, const void *data, int len, int is_more) |
0876f84a DJ |
229 | { |
230 | int out_len; | |
231 | ||
232 | if (is_more) | |
233 | buf[0] = 'm'; | |
234 | else | |
235 | buf[0] = 'l'; | |
236 | ||
237 | return remote_escape_output (data, len, (unsigned char *) buf + 1, &out_len, | |
238 | PBUFSIZ - 2) + 1; | |
239 | } | |
240 | ||
89be2091 DJ |
241 | /* Handle all of the extended 'Q' packets. */ |
242 | void | |
243 | handle_general_set (char *own_buf) | |
244 | { | |
245 | if (strncmp ("QPassSignals:", own_buf, strlen ("QPassSignals:")) == 0) | |
246 | { | |
247 | int numsigs = (int) TARGET_SIGNAL_LAST, i; | |
248 | const char *p = own_buf + strlen ("QPassSignals:"); | |
249 | CORE_ADDR cursig; | |
250 | ||
251 | p = decode_address_to_semicolon (&cursig, p); | |
252 | for (i = 0; i < numsigs; i++) | |
253 | { | |
254 | if (i == cursig) | |
255 | { | |
256 | pass_signals[i] = 1; | |
257 | if (*p == '\0') | |
258 | /* Keep looping, to clear the remaining signals. */ | |
259 | cursig = -1; | |
260 | else | |
261 | p = decode_address_to_semicolon (&cursig, p); | |
262 | } | |
263 | else | |
264 | pass_signals[i] = 0; | |
265 | } | |
266 | strcpy (own_buf, "OK"); | |
267 | return; | |
268 | } | |
269 | ||
270 | /* Otherwise we didn't know what packet it was. Say we didn't | |
271 | understand it. */ | |
272 | own_buf[0] = 0; | |
273 | } | |
274 | ||
23181151 | 275 | static const char * |
fb1e4ffc | 276 | get_features_xml (const char *annex) |
23181151 | 277 | { |
9b4b61c8 UW |
278 | /* gdbserver_xmltarget defines what to return when looking |
279 | for the "target.xml" file. Its contents can either be | |
280 | verbatim XML code (prefixed with a '@') or else the name | |
281 | of the actual XML file to be used in place of "target.xml". | |
fb1e4ffc | 282 | |
9b4b61c8 UW |
283 | This variable is set up from the auto-generated |
284 | init_registers_... routine for the current target. */ | |
fb1e4ffc | 285 | |
9b4b61c8 | 286 | if (gdbserver_xmltarget |
221c031f | 287 | && strcmp (annex, "target.xml") == 0) |
23181151 | 288 | { |
9b4b61c8 UW |
289 | if (*gdbserver_xmltarget == '@') |
290 | return gdbserver_xmltarget + 1; | |
23181151 | 291 | else |
9b4b61c8 | 292 | annex = gdbserver_xmltarget; |
23181151 DJ |
293 | } |
294 | ||
9b4b61c8 UW |
295 | #ifdef USE_XML |
296 | { | |
297 | extern const char *const xml_builtin[][2]; | |
298 | int i; | |
299 | ||
300 | /* Look for the annex. */ | |
301 | for (i = 0; xml_builtin[i][0] != NULL; i++) | |
302 | if (strcmp (annex, xml_builtin[i][0]) == 0) | |
303 | break; | |
304 | ||
305 | if (xml_builtin[i][0] != NULL) | |
306 | return xml_builtin[i][1]; | |
307 | } | |
308 | #endif | |
309 | ||
310 | return NULL; | |
23181151 DJ |
311 | } |
312 | ||
c74d0ad8 DJ |
313 | void |
314 | monitor_show_help (void) | |
315 | { | |
316 | monitor_output ("The following monitor commands are supported:\n"); | |
317 | monitor_output (" set debug <0|1>\n"); | |
318 | monitor_output (" Enable general debugging messages\n"); | |
319 | monitor_output (" set remote-debug <0|1>\n"); | |
320 | monitor_output (" Enable remote protocol debugging messages\n"); | |
ecd7ecbc DJ |
321 | monitor_output (" exit\n"); |
322 | monitor_output (" Quit GDBserver\n"); | |
c74d0ad8 DJ |
323 | } |
324 | ||
08388c79 DE |
325 | /* Subroutine of handle_search_memory to simplify it. */ |
326 | ||
327 | static int | |
328 | handle_search_memory_1 (CORE_ADDR start_addr, CORE_ADDR search_space_len, | |
329 | gdb_byte *pattern, unsigned pattern_len, | |
330 | gdb_byte *search_buf, | |
331 | unsigned chunk_size, unsigned search_buf_size, | |
332 | CORE_ADDR *found_addrp) | |
333 | { | |
334 | /* Prime the search buffer. */ | |
335 | ||
336 | if (read_inferior_memory (start_addr, search_buf, search_buf_size) != 0) | |
337 | { | |
5e1471f5 | 338 | warning ("Unable to access target memory at 0x%lx, halting search.", |
08388c79 DE |
339 | (long) start_addr); |
340 | return -1; | |
341 | } | |
342 | ||
343 | /* Perform the search. | |
344 | ||
345 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
346 | When we've scanned N bytes we copy the trailing bytes to the start and | |
347 | read in another N bytes. */ | |
348 | ||
349 | while (search_space_len >= pattern_len) | |
350 | { | |
351 | gdb_byte *found_ptr; | |
352 | unsigned nr_search_bytes = (search_space_len < search_buf_size | |
353 | ? search_space_len | |
354 | : search_buf_size); | |
355 | ||
356 | found_ptr = memmem (search_buf, nr_search_bytes, pattern, pattern_len); | |
357 | ||
358 | if (found_ptr != NULL) | |
359 | { | |
360 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
361 | *found_addrp = found_addr; | |
362 | return 1; | |
363 | } | |
364 | ||
365 | /* Not found in this chunk, skip to next chunk. */ | |
366 | ||
367 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
368 | if (search_space_len >= chunk_size) | |
369 | search_space_len -= chunk_size; | |
370 | else | |
371 | search_space_len = 0; | |
372 | ||
373 | if (search_space_len >= pattern_len) | |
374 | { | |
375 | unsigned keep_len = search_buf_size - chunk_size; | |
376 | CORE_ADDR read_addr = start_addr + keep_len; | |
377 | int nr_to_read; | |
378 | ||
379 | /* Copy the trailing part of the previous iteration to the front | |
380 | of the buffer for the next iteration. */ | |
381 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
382 | ||
383 | nr_to_read = (search_space_len - keep_len < chunk_size | |
384 | ? search_space_len - keep_len | |
385 | : chunk_size); | |
386 | ||
387 | if (read_inferior_memory (read_addr, search_buf + keep_len, | |
388 | nr_to_read) != 0) | |
389 | { | |
5e1471f5 | 390 | warning ("Unable to access target memory at 0x%lx, halting search.", |
08388c79 DE |
391 | (long) read_addr); |
392 | return -1; | |
393 | } | |
394 | ||
395 | start_addr += chunk_size; | |
396 | } | |
397 | } | |
398 | ||
399 | /* Not found. */ | |
400 | ||
401 | return 0; | |
402 | } | |
403 | ||
404 | /* Handle qSearch:memory packets. */ | |
405 | ||
406 | static void | |
407 | handle_search_memory (char *own_buf, int packet_len) | |
408 | { | |
409 | CORE_ADDR start_addr; | |
410 | CORE_ADDR search_space_len; | |
411 | gdb_byte *pattern; | |
412 | unsigned int pattern_len; | |
413 | /* NOTE: also defined in find.c testcase. */ | |
414 | #define SEARCH_CHUNK_SIZE 16000 | |
415 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
416 | /* Buffer to hold memory contents for searching. */ | |
417 | gdb_byte *search_buf; | |
418 | unsigned search_buf_size; | |
419 | int found; | |
420 | CORE_ADDR found_addr; | |
421 | int cmd_name_len = sizeof ("qSearch:memory:") - 1; | |
422 | ||
423 | pattern = malloc (packet_len); | |
424 | if (pattern == NULL) | |
425 | { | |
5e1471f5 | 426 | error ("Unable to allocate memory to perform the search"); |
08388c79 DE |
427 | strcpy (own_buf, "E00"); |
428 | return; | |
429 | } | |
430 | if (decode_search_memory_packet (own_buf + cmd_name_len, | |
431 | packet_len - cmd_name_len, | |
432 | &start_addr, &search_space_len, | |
433 | pattern, &pattern_len) < 0) | |
434 | { | |
435 | free (pattern); | |
5e1471f5 | 436 | error ("Error in parsing qSearch:memory packet"); |
08388c79 DE |
437 | strcpy (own_buf, "E00"); |
438 | return; | |
439 | } | |
440 | ||
441 | search_buf_size = chunk_size + pattern_len - 1; | |
442 | ||
443 | /* No point in trying to allocate a buffer larger than the search space. */ | |
444 | if (search_space_len < search_buf_size) | |
445 | search_buf_size = search_space_len; | |
446 | ||
447 | search_buf = malloc (search_buf_size); | |
448 | if (search_buf == NULL) | |
449 | { | |
450 | free (pattern); | |
5e1471f5 | 451 | error ("Unable to allocate memory to perform the search"); |
08388c79 DE |
452 | strcpy (own_buf, "E00"); |
453 | return; | |
454 | } | |
455 | ||
456 | found = handle_search_memory_1 (start_addr, search_space_len, | |
457 | pattern, pattern_len, | |
458 | search_buf, chunk_size, search_buf_size, | |
459 | &found_addr); | |
460 | ||
461 | if (found > 0) | |
462 | sprintf (own_buf, "1,%lx", (long) found_addr); | |
463 | else if (found == 0) | |
464 | strcpy (own_buf, "0"); | |
465 | else | |
466 | strcpy (own_buf, "E00"); | |
467 | ||
468 | free (search_buf); | |
469 | free (pattern); | |
470 | } | |
471 | ||
2d717e4f DJ |
472 | #define require_running(BUF) \ |
473 | if (!target_running ()) \ | |
474 | { \ | |
475 | write_enn (BUF); \ | |
476 | return; \ | |
477 | } | |
478 | ||
ce3a066d DJ |
479 | /* Handle all of the extended 'q' packets. */ |
480 | void | |
0e7f50da | 481 | handle_query (char *own_buf, int packet_len, int *new_packet_len_p) |
ce3a066d | 482 | { |
0d62e5e8 DJ |
483 | static struct inferior_list_entry *thread_ptr; |
484 | ||
bb63802a | 485 | /* Reply the current thread id. */ |
db42f210 | 486 | if (strcmp ("qC", own_buf) == 0 && !disable_packet_qC) |
bb63802a | 487 | { |
2d717e4f | 488 | require_running (own_buf); |
bb63802a UW |
489 | thread_ptr = all_threads.head; |
490 | sprintf (own_buf, "QC%x", | |
db42f210 | 491 | thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
bb63802a UW |
492 | return; |
493 | } | |
494 | ||
ce3a066d DJ |
495 | if (strcmp ("qSymbol::", own_buf) == 0) |
496 | { | |
2d717e4f | 497 | if (target_running () && the_target->look_up_symbols != NULL) |
2f2893d9 DJ |
498 | (*the_target->look_up_symbols) (); |
499 | ||
ce3a066d DJ |
500 | strcpy (own_buf, "OK"); |
501 | return; | |
502 | } | |
503 | ||
db42f210 | 504 | if (!disable_packet_qfThreadInfo) |
0d62e5e8 | 505 | { |
db42f210 | 506 | if (strcmp ("qfThreadInfo", own_buf) == 0) |
0d62e5e8 | 507 | { |
db42f210 PA |
508 | require_running (own_buf); |
509 | thread_ptr = all_threads.head; | |
a06660f7 | 510 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
0d62e5e8 DJ |
511 | thread_ptr = thread_ptr->next; |
512 | return; | |
513 | } | |
db42f210 PA |
514 | |
515 | if (strcmp ("qsThreadInfo", own_buf) == 0) | |
0d62e5e8 | 516 | { |
db42f210 PA |
517 | require_running (own_buf); |
518 | if (thread_ptr != NULL) | |
519 | { | |
520 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); | |
521 | thread_ptr = thread_ptr->next; | |
522 | return; | |
523 | } | |
524 | else | |
525 | { | |
526 | sprintf (own_buf, "l"); | |
527 | return; | |
528 | } | |
0d62e5e8 DJ |
529 | } |
530 | } | |
aa691b87 | 531 | |
52fb6437 NS |
532 | if (the_target->read_offsets != NULL |
533 | && strcmp ("qOffsets", own_buf) == 0) | |
534 | { | |
535 | CORE_ADDR text, data; | |
2d717e4f DJ |
536 | |
537 | require_running (own_buf); | |
52fb6437 NS |
538 | if (the_target->read_offsets (&text, &data)) |
539 | sprintf (own_buf, "Text=%lX;Data=%lX;Bss=%lX", | |
540 | (long)text, (long)data, (long)data); | |
541 | else | |
542 | write_enn (own_buf); | |
543 | ||
544 | return; | |
545 | } | |
546 | ||
0e7f50da UW |
547 | if (the_target->qxfer_spu != NULL |
548 | && strncmp ("qXfer:spu:read:", own_buf, 15) == 0) | |
549 | { | |
550 | char *annex; | |
551 | int n; | |
552 | unsigned int len; | |
553 | CORE_ADDR ofs; | |
554 | unsigned char *spu_buf; | |
555 | ||
2d717e4f | 556 | require_running (own_buf); |
0e7f50da UW |
557 | strcpy (own_buf, "E00"); |
558 | if (decode_xfer_read (own_buf + 15, &annex, &ofs, &len) < 0) | |
559 | return; | |
560 | if (len > PBUFSIZ - 2) | |
561 | len = PBUFSIZ - 2; | |
562 | spu_buf = malloc (len + 1); | |
563 | if (!spu_buf) | |
564 | return; | |
565 | ||
566 | n = (*the_target->qxfer_spu) (annex, spu_buf, NULL, ofs, len + 1); | |
567 | if (n < 0) | |
568 | write_enn (own_buf); | |
569 | else if (n > len) | |
570 | *new_packet_len_p = write_qxfer_response | |
571 | (own_buf, spu_buf, len, 1); | |
572 | else | |
573 | *new_packet_len_p = write_qxfer_response | |
574 | (own_buf, spu_buf, n, 0); | |
575 | ||
576 | free (spu_buf); | |
577 | return; | |
578 | } | |
579 | ||
580 | if (the_target->qxfer_spu != NULL | |
581 | && strncmp ("qXfer:spu:write:", own_buf, 16) == 0) | |
582 | { | |
583 | char *annex; | |
584 | int n; | |
585 | unsigned int len; | |
586 | CORE_ADDR ofs; | |
587 | unsigned char *spu_buf; | |
588 | ||
2d717e4f | 589 | require_running (own_buf); |
0e7f50da UW |
590 | strcpy (own_buf, "E00"); |
591 | spu_buf = malloc (packet_len - 15); | |
592 | if (!spu_buf) | |
593 | return; | |
594 | if (decode_xfer_write (own_buf + 16, packet_len - 16, &annex, | |
595 | &ofs, &len, spu_buf) < 0) | |
596 | { | |
597 | free (spu_buf); | |
598 | return; | |
599 | } | |
600 | ||
601 | n = (*the_target->qxfer_spu) | |
602 | (annex, NULL, (unsigned const char *)spu_buf, ofs, len); | |
603 | if (n < 0) | |
604 | write_enn (own_buf); | |
605 | else | |
606 | sprintf (own_buf, "%x", n); | |
607 | ||
608 | free (spu_buf); | |
609 | return; | |
610 | } | |
611 | ||
aa691b87 | 612 | if (the_target->read_auxv != NULL |
0876f84a | 613 | && strncmp ("qXfer:auxv:read:", own_buf, 16) == 0) |
aa691b87 | 614 | { |
0876f84a DJ |
615 | unsigned char *data; |
616 | int n; | |
aa691b87 RM |
617 | CORE_ADDR ofs; |
618 | unsigned int len; | |
0876f84a DJ |
619 | char *annex; |
620 | ||
2d717e4f DJ |
621 | require_running (own_buf); |
622 | ||
0876f84a DJ |
623 | /* Reject any annex; grab the offset and length. */ |
624 | if (decode_xfer_read (own_buf + 16, &annex, &ofs, &len) < 0 | |
625 | || annex[0] != '\0') | |
626 | { | |
627 | strcpy (own_buf, "E00"); | |
628 | return; | |
629 | } | |
630 | ||
631 | /* Read one extra byte, as an indicator of whether there is | |
632 | more. */ | |
633 | if (len > PBUFSIZ - 2) | |
634 | len = PBUFSIZ - 2; | |
635 | data = malloc (len + 1); | |
636 | n = (*the_target->read_auxv) (ofs, data, len + 1); | |
000ef4f0 DJ |
637 | if (n < 0) |
638 | write_enn (own_buf); | |
639 | else if (n > len) | |
0876f84a | 640 | *new_packet_len_p = write_qxfer_response (own_buf, data, len, 1); |
aa691b87 | 641 | else |
0876f84a DJ |
642 | *new_packet_len_p = write_qxfer_response (own_buf, data, n, 0); |
643 | ||
644 | free (data); | |
645 | ||
aa691b87 RM |
646 | return; |
647 | } | |
648 | ||
23181151 DJ |
649 | if (strncmp ("qXfer:features:read:", own_buf, 20) == 0) |
650 | { | |
651 | CORE_ADDR ofs; | |
652 | unsigned int len, total_len; | |
653 | const char *document; | |
654 | char *annex; | |
655 | ||
2d717e4f DJ |
656 | require_running (own_buf); |
657 | ||
fb1e4ffc DJ |
658 | /* Grab the annex, offset, and length. */ |
659 | if (decode_xfer_read (own_buf + 20, &annex, &ofs, &len) < 0) | |
660 | { | |
661 | strcpy (own_buf, "E00"); | |
662 | return; | |
663 | } | |
664 | ||
665 | /* Now grab the correct annex. */ | |
666 | document = get_features_xml (annex); | |
667 | if (document == NULL) | |
23181151 DJ |
668 | { |
669 | strcpy (own_buf, "E00"); | |
670 | return; | |
671 | } | |
672 | ||
673 | total_len = strlen (document); | |
674 | if (len > PBUFSIZ - 2) | |
675 | len = PBUFSIZ - 2; | |
676 | ||
677 | if (ofs > total_len) | |
678 | write_enn (own_buf); | |
679 | else if (len < total_len - ofs) | |
680 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
681 | len, 1); | |
682 | else | |
683 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
684 | total_len - ofs, 0); | |
685 | ||
686 | return; | |
687 | } | |
688 | ||
255e7678 DJ |
689 | if (strncmp ("qXfer:libraries:read:", own_buf, 21) == 0) |
690 | { | |
691 | CORE_ADDR ofs; | |
692 | unsigned int len, total_len; | |
693 | char *document, *p; | |
694 | struct inferior_list_entry *dll_ptr; | |
695 | char *annex; | |
696 | ||
2d717e4f DJ |
697 | require_running (own_buf); |
698 | ||
255e7678 DJ |
699 | /* Reject any annex; grab the offset and length. */ |
700 | if (decode_xfer_read (own_buf + 21, &annex, &ofs, &len) < 0 | |
701 | || annex[0] != '\0') | |
702 | { | |
703 | strcpy (own_buf, "E00"); | |
704 | return; | |
705 | } | |
706 | ||
707 | /* Over-estimate the necessary memory. Assume that every character | |
708 | in the library name must be escaped. */ | |
709 | total_len = 64; | |
710 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
711 | total_len += 128 + 6 * strlen (((struct dll_info *) dll_ptr)->name); | |
712 | ||
713 | document = malloc (total_len); | |
714 | strcpy (document, "<library-list>\n"); | |
715 | p = document + strlen (document); | |
716 | ||
717 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
718 | { | |
719 | struct dll_info *dll = (struct dll_info *) dll_ptr; | |
720 | char *name; | |
721 | ||
722 | strcpy (p, " <library name=\""); | |
723 | p = p + strlen (p); | |
724 | name = xml_escape_text (dll->name); | |
725 | strcpy (p, name); | |
726 | free (name); | |
727 | p = p + strlen (p); | |
728 | strcpy (p, "\"><segment address=\""); | |
729 | p = p + strlen (p); | |
730 | sprintf (p, "0x%lx", (long) dll->base_addr); | |
731 | p = p + strlen (p); | |
732 | strcpy (p, "\"/></library>\n"); | |
733 | p = p + strlen (p); | |
734 | } | |
735 | ||
736 | strcpy (p, "</library-list>\n"); | |
737 | ||
738 | total_len = strlen (document); | |
739 | if (len > PBUFSIZ - 2) | |
740 | len = PBUFSIZ - 2; | |
741 | ||
742 | if (ofs > total_len) | |
743 | write_enn (own_buf); | |
744 | else if (len < total_len - ofs) | |
745 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
746 | len, 1); | |
747 | else | |
748 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
749 | total_len - ofs, 0); | |
750 | ||
751 | free (document); | |
752 | return; | |
753 | } | |
754 | ||
be2a5f71 DJ |
755 | /* Protocol features query. */ |
756 | if (strncmp ("qSupported", own_buf, 10) == 0 | |
757 | && (own_buf[10] == ':' || own_buf[10] == '\0')) | |
758 | { | |
89be2091 | 759 | sprintf (own_buf, "PacketSize=%x;QPassSignals+", PBUFSIZ - 1); |
0876f84a | 760 | |
255e7678 DJ |
761 | /* We do not have any hook to indicate whether the target backend |
762 | supports qXfer:libraries:read, so always report it. */ | |
763 | strcat (own_buf, ";qXfer:libraries:read+"); | |
764 | ||
0876f84a | 765 | if (the_target->read_auxv != NULL) |
9f2e1e63 | 766 | strcat (own_buf, ";qXfer:auxv:read+"); |
2d717e4f | 767 | |
0e7f50da UW |
768 | if (the_target->qxfer_spu != NULL) |
769 | strcat (own_buf, ";qXfer:spu:read+;qXfer:spu:write+"); | |
0876f84a | 770 | |
221c031f UW |
771 | /* We always report qXfer:features:read, as targets may |
772 | install XML files on a subsequent call to arch_setup. | |
773 | If we reported to GDB on startup that we don't support | |
774 | qXfer:feature:read at all, we will never be re-queried. */ | |
775 | strcat (own_buf, ";qXfer:features:read+"); | |
23181151 | 776 | |
be2a5f71 DJ |
777 | return; |
778 | } | |
779 | ||
dae5f5cf DJ |
780 | /* Thread-local storage support. */ |
781 | if (the_target->get_tls_address != NULL | |
782 | && strncmp ("qGetTLSAddr:", own_buf, 12) == 0) | |
783 | { | |
784 | char *p = own_buf + 12; | |
785 | CORE_ADDR parts[3], address = 0; | |
786 | int i, err; | |
787 | ||
2d717e4f DJ |
788 | require_running (own_buf); |
789 | ||
dae5f5cf DJ |
790 | for (i = 0; i < 3; i++) |
791 | { | |
792 | char *p2; | |
793 | int len; | |
794 | ||
795 | if (p == NULL) | |
796 | break; | |
797 | ||
798 | p2 = strchr (p, ','); | |
799 | if (p2) | |
800 | { | |
801 | len = p2 - p; | |
802 | p2++; | |
803 | } | |
804 | else | |
805 | { | |
806 | len = strlen (p); | |
807 | p2 = NULL; | |
808 | } | |
809 | ||
810 | decode_address (&parts[i], p, len); | |
811 | p = p2; | |
812 | } | |
813 | ||
814 | if (p != NULL || i < 3) | |
815 | err = 1; | |
816 | else | |
817 | { | |
818 | struct thread_info *thread = gdb_id_to_thread (parts[0]); | |
819 | ||
820 | if (thread == NULL) | |
821 | err = 2; | |
822 | else | |
823 | err = the_target->get_tls_address (thread, parts[1], parts[2], | |
824 | &address); | |
825 | } | |
826 | ||
827 | if (err == 0) | |
828 | { | |
829 | sprintf (own_buf, "%llx", address); | |
830 | return; | |
831 | } | |
832 | else if (err > 0) | |
833 | { | |
834 | write_enn (own_buf); | |
835 | return; | |
836 | } | |
837 | ||
838 | /* Otherwise, pretend we do not understand this packet. */ | |
839 | } | |
840 | ||
c74d0ad8 DJ |
841 | /* Handle "monitor" commands. */ |
842 | if (strncmp ("qRcmd,", own_buf, 6) == 0) | |
843 | { | |
844 | char *mon = malloc (PBUFSIZ); | |
845 | int len = strlen (own_buf + 6); | |
846 | ||
d41b6bb4 | 847 | if ((len % 2) != 0 || unhexify (mon, own_buf + 6, len / 2) != len / 2) |
c74d0ad8 DJ |
848 | { |
849 | write_enn (own_buf); | |
850 | free (mon); | |
851 | return; | |
852 | } | |
853 | mon[len / 2] = '\0'; | |
854 | ||
855 | write_ok (own_buf); | |
856 | ||
857 | if (strcmp (mon, "set debug 1") == 0) | |
858 | { | |
859 | debug_threads = 1; | |
860 | monitor_output ("Debug output enabled.\n"); | |
861 | } | |
862 | else if (strcmp (mon, "set debug 0") == 0) | |
863 | { | |
864 | debug_threads = 0; | |
865 | monitor_output ("Debug output disabled.\n"); | |
866 | } | |
867 | else if (strcmp (mon, "set remote-debug 1") == 0) | |
868 | { | |
869 | remote_debug = 1; | |
870 | monitor_output ("Protocol debug output enabled.\n"); | |
871 | } | |
872 | else if (strcmp (mon, "set remote-debug 0") == 0) | |
873 | { | |
874 | remote_debug = 0; | |
875 | monitor_output ("Protocol debug output disabled.\n"); | |
876 | } | |
877 | else if (strcmp (mon, "help") == 0) | |
878 | monitor_show_help (); | |
2d717e4f DJ |
879 | else if (strcmp (mon, "exit") == 0) |
880 | exit_requested = 1; | |
c74d0ad8 DJ |
881 | else |
882 | { | |
883 | monitor_output ("Unknown monitor command.\n\n"); | |
884 | monitor_show_help (); | |
885 | write_enn (own_buf); | |
886 | } | |
887 | ||
888 | free (mon); | |
889 | return; | |
890 | } | |
891 | ||
08388c79 DE |
892 | if (strncmp ("qSearch:memory:", own_buf, sizeof ("qSearch:memory:") - 1) == 0) |
893 | { | |
894 | require_running (own_buf); | |
895 | handle_search_memory (own_buf, packet_len); | |
896 | return; | |
897 | } | |
898 | ||
ce3a066d DJ |
899 | /* Otherwise we didn't know what packet it was. Say we didn't |
900 | understand it. */ | |
901 | own_buf[0] = 0; | |
902 | } | |
903 | ||
64386c31 DJ |
904 | /* Parse vCont packets. */ |
905 | void | |
fc620387 | 906 | handle_v_cont (char *own_buf, char *status, int *signal) |
64386c31 DJ |
907 | { |
908 | char *p, *q; | |
909 | int n = 0, i = 0; | |
910 | struct thread_resume *resume_info, default_action; | |
911 | ||
912 | /* Count the number of semicolons in the packet. There should be one | |
913 | for every action. */ | |
914 | p = &own_buf[5]; | |
915 | while (p) | |
916 | { | |
917 | n++; | |
918 | p++; | |
919 | p = strchr (p, ';'); | |
920 | } | |
921 | /* Allocate room for one extra action, for the default remain-stopped | |
922 | behavior; if no default action is in the list, we'll need the extra | |
923 | slot. */ | |
924 | resume_info = malloc ((n + 1) * sizeof (resume_info[0])); | |
925 | ||
926 | default_action.thread = -1; | |
927 | default_action.leave_stopped = 1; | |
928 | default_action.step = 0; | |
929 | default_action.sig = 0; | |
930 | ||
931 | p = &own_buf[5]; | |
932 | i = 0; | |
933 | while (*p) | |
934 | { | |
935 | p++; | |
936 | ||
937 | resume_info[i].leave_stopped = 0; | |
938 | ||
939 | if (p[0] == 's' || p[0] == 'S') | |
940 | resume_info[i].step = 1; | |
941 | else if (p[0] == 'c' || p[0] == 'C') | |
942 | resume_info[i].step = 0; | |
943 | else | |
944 | goto err; | |
945 | ||
946 | if (p[0] == 'S' || p[0] == 'C') | |
947 | { | |
948 | int sig; | |
949 | sig = strtol (p + 1, &q, 16); | |
950 | if (p == q) | |
951 | goto err; | |
952 | p = q; | |
953 | ||
954 | if (!target_signal_to_host_p (sig)) | |
955 | goto err; | |
956 | resume_info[i].sig = target_signal_to_host (sig); | |
957 | } | |
958 | else | |
959 | { | |
960 | resume_info[i].sig = 0; | |
961 | p = p + 1; | |
962 | } | |
963 | ||
964 | if (p[0] == 0) | |
965 | { | |
966 | resume_info[i].thread = -1; | |
967 | default_action = resume_info[i]; | |
968 | ||
969 | /* Note: we don't increment i here, we'll overwrite this entry | |
970 | the next time through. */ | |
971 | } | |
972 | else if (p[0] == ':') | |
973 | { | |
a06660f7 DJ |
974 | unsigned int gdb_id = strtoul (p + 1, &q, 16); |
975 | unsigned long thread_id; | |
976 | ||
64386c31 DJ |
977 | if (p == q) |
978 | goto err; | |
979 | p = q; | |
980 | if (p[0] != ';' && p[0] != 0) | |
981 | goto err; | |
982 | ||
a06660f7 DJ |
983 | thread_id = gdb_id_to_thread_id (gdb_id); |
984 | if (thread_id) | |
985 | resume_info[i].thread = thread_id; | |
986 | else | |
987 | goto err; | |
988 | ||
64386c31 DJ |
989 | i++; |
990 | } | |
991 | } | |
992 | ||
993 | resume_info[i] = default_action; | |
994 | ||
995 | /* Still used in occasional places in the backend. */ | |
996 | if (n == 1 && resume_info[0].thread != -1) | |
997 | cont_thread = resume_info[0].thread; | |
998 | else | |
999 | cont_thread = -1; | |
dc3f8883 | 1000 | set_desired_inferior (0); |
64386c31 | 1001 | |
a20d5e98 | 1002 | enable_async_io (); |
64386c31 DJ |
1003 | (*the_target->resume) (resume_info); |
1004 | ||
1005 | free (resume_info); | |
1006 | ||
1007 | *signal = mywait (status, 1); | |
1008 | prepare_resume_reply (own_buf, *status, *signal); | |
a20d5e98 | 1009 | disable_async_io (); |
64386c31 DJ |
1010 | return; |
1011 | ||
1012 | err: | |
255e7678 | 1013 | write_enn (own_buf); |
64386c31 DJ |
1014 | free (resume_info); |
1015 | return; | |
1016 | } | |
1017 | ||
2d717e4f DJ |
1018 | /* Attach to a new program. Return 1 if successful, 0 if failure. */ |
1019 | int | |
1020 | handle_v_attach (char *own_buf, char *status, int *signal) | |
1021 | { | |
1022 | int pid; | |
1023 | ||
1024 | pid = strtol (own_buf + 8, NULL, 16); | |
1025 | if (pid != 0 && attach_inferior (pid, status, signal) == 0) | |
1026 | { | |
1027 | prepare_resume_reply (own_buf, *status, *signal); | |
1028 | return 1; | |
1029 | } | |
1030 | else | |
1031 | { | |
1032 | write_enn (own_buf); | |
1033 | return 0; | |
1034 | } | |
1035 | } | |
1036 | ||
1037 | /* Run a new program. Return 1 if successful, 0 if failure. */ | |
1038 | static int | |
1039 | handle_v_run (char *own_buf, char *status, int *signal) | |
1040 | { | |
1041 | char *p, **pp, *next_p, **new_argv; | |
1042 | int i, new_argc; | |
1043 | ||
1044 | new_argc = 0; | |
1045 | for (p = own_buf + strlen ("vRun;"); p && *p; p = strchr (p, ';')) | |
1046 | { | |
1047 | p++; | |
1048 | new_argc++; | |
1049 | } | |
1050 | ||
1051 | new_argv = malloc ((new_argc + 2) * sizeof (char *)); | |
1052 | i = 0; | |
1053 | for (p = own_buf + strlen ("vRun;"); *p; p = next_p) | |
1054 | { | |
1055 | next_p = strchr (p, ';'); | |
1056 | if (next_p == NULL) | |
1057 | next_p = p + strlen (p); | |
1058 | ||
1059 | if (i == 0 && p == next_p) | |
1060 | new_argv[i] = NULL; | |
1061 | else | |
1062 | { | |
1063 | new_argv[i] = malloc (1 + (next_p - p) / 2); | |
1064 | unhexify (new_argv[i], p, (next_p - p) / 2); | |
1065 | new_argv[i][(next_p - p) / 2] = '\0'; | |
1066 | } | |
1067 | ||
1068 | if (*next_p) | |
1069 | next_p++; | |
1070 | i++; | |
1071 | } | |
1072 | new_argv[i] = NULL; | |
1073 | ||
1074 | if (new_argv[0] == NULL) | |
1075 | { | |
1076 | if (program_argv == NULL) | |
1077 | { | |
1078 | write_enn (own_buf); | |
1079 | return 0; | |
1080 | } | |
1081 | ||
1082 | new_argv[0] = strdup (program_argv[0]); | |
1083 | } | |
1084 | ||
1085 | /* Free the old argv. */ | |
1086 | if (program_argv) | |
1087 | { | |
1088 | for (pp = program_argv; *pp != NULL; pp++) | |
1089 | free (*pp); | |
1090 | free (program_argv); | |
1091 | } | |
1092 | program_argv = new_argv; | |
1093 | ||
1094 | *signal = start_inferior (program_argv, status); | |
1095 | if (*status == 'T') | |
1096 | { | |
1097 | prepare_resume_reply (own_buf, *status, *signal); | |
1098 | return 1; | |
1099 | } | |
1100 | else | |
1101 | { | |
1102 | write_enn (own_buf); | |
1103 | return 0; | |
1104 | } | |
1105 | } | |
1106 | ||
64386c31 DJ |
1107 | /* Handle all of the extended 'v' packets. */ |
1108 | void | |
a6b151f1 DJ |
1109 | handle_v_requests (char *own_buf, char *status, int *signal, |
1110 | int packet_len, int *new_packet_len) | |
64386c31 | 1111 | { |
db42f210 | 1112 | if (!disable_packet_vCont) |
64386c31 | 1113 | { |
db42f210 PA |
1114 | if (strncmp (own_buf, "vCont;", 6) == 0) |
1115 | { | |
1116 | require_running (own_buf); | |
1117 | handle_v_cont (own_buf, status, signal); | |
1118 | return; | |
1119 | } | |
64386c31 | 1120 | |
db42f210 PA |
1121 | if (strncmp (own_buf, "vCont?", 6) == 0) |
1122 | { | |
1123 | strcpy (own_buf, "vCont;c;C;s;S"); | |
1124 | return; | |
1125 | } | |
64386c31 DJ |
1126 | } |
1127 | ||
a6b151f1 DJ |
1128 | if (strncmp (own_buf, "vFile:", 6) == 0 |
1129 | && handle_vFile (own_buf, packet_len, new_packet_len)) | |
1130 | return; | |
1131 | ||
2d717e4f DJ |
1132 | if (strncmp (own_buf, "vAttach;", 8) == 0) |
1133 | { | |
1134 | if (target_running ()) | |
1135 | { | |
fd96d250 PA |
1136 | fprintf (stderr, "Already debugging a process\n"); |
1137 | write_enn (own_buf); | |
1138 | return; | |
2d717e4f DJ |
1139 | } |
1140 | handle_v_attach (own_buf, status, signal); | |
1141 | return; | |
1142 | } | |
1143 | ||
1144 | if (strncmp (own_buf, "vRun;", 5) == 0) | |
1145 | { | |
1146 | if (target_running ()) | |
1147 | { | |
fd96d250 PA |
1148 | fprintf (stderr, "Already debugging a process\n"); |
1149 | write_enn (own_buf); | |
1150 | return; | |
2d717e4f DJ |
1151 | } |
1152 | handle_v_run (own_buf, status, signal); | |
1153 | return; | |
1154 | } | |
1155 | ||
64386c31 DJ |
1156 | /* Otherwise we didn't know what packet it was. Say we didn't |
1157 | understand it. */ | |
1158 | own_buf[0] = 0; | |
1159 | return; | |
1160 | } | |
1161 | ||
1162 | void | |
27524b67 | 1163 | myresume (char *own_buf, int step, int *signalp, char *statusp) |
64386c31 DJ |
1164 | { |
1165 | struct thread_resume resume_info[2]; | |
1166 | int n = 0; | |
a20d5e98 DJ |
1167 | int sig = *signalp; |
1168 | ||
1169 | set_desired_inferior (0); | |
64386c31 | 1170 | |
d592fa2f | 1171 | if (step || sig || (cont_thread != 0 && cont_thread != -1)) |
64386c31 DJ |
1172 | { |
1173 | resume_info[0].thread | |
1174 | = ((struct inferior_list_entry *) current_inferior)->id; | |
1175 | resume_info[0].step = step; | |
1176 | resume_info[0].sig = sig; | |
1177 | resume_info[0].leave_stopped = 0; | |
1178 | n++; | |
1179 | } | |
1180 | resume_info[n].thread = -1; | |
1181 | resume_info[n].step = 0; | |
1182 | resume_info[n].sig = 0; | |
d592fa2f | 1183 | resume_info[n].leave_stopped = (cont_thread != 0 && cont_thread != -1); |
64386c31 | 1184 | |
a20d5e98 | 1185 | enable_async_io (); |
64386c31 | 1186 | (*the_target->resume) (resume_info); |
a20d5e98 DJ |
1187 | *signalp = mywait (statusp, 1); |
1188 | prepare_resume_reply (own_buf, *statusp, *signalp); | |
1189 | disable_async_io (); | |
64386c31 DJ |
1190 | } |
1191 | ||
dd24457d DJ |
1192 | static void |
1193 | gdbserver_version (void) | |
1194 | { | |
c16158bc | 1195 | printf ("GNU gdbserver %s%s\n" |
255e7678 | 1196 | "Copyright (C) 2007 Free Software Foundation, Inc.\n" |
dd24457d DJ |
1197 | "gdbserver is free software, covered by the GNU General Public License.\n" |
1198 | "This gdbserver was configured as \"%s\"\n", | |
c16158bc | 1199 | PKGVERSION, version, host_name); |
dd24457d DJ |
1200 | } |
1201 | ||
0bc68c49 | 1202 | static void |
c16158bc | 1203 | gdbserver_usage (FILE *stream) |
0bc68c49 | 1204 | { |
c16158bc JM |
1205 | fprintf (stream, "Usage:\tgdbserver [OPTIONS] COMM PROG [ARGS ...]\n" |
1206 | "\tgdbserver [OPTIONS] --attach COMM PID\n" | |
1207 | "\tgdbserver [OPTIONS] --multi COMM\n" | |
1208 | "\n" | |
1209 | "COMM may either be a tty device (for serial debugging), or \n" | |
1210 | "HOST:PORT to listen for a TCP connection.\n" | |
1211 | "\n" | |
1212 | "Options:\n" | |
1213 | " --debug\t\tEnable debugging output.\n" | |
8e4c5421 | 1214 | " --version\t\tDisplay version information and exit.\n" |
c16158bc JM |
1215 | " --wrapper WRAPPER --\tRun WRAPPER to start new programs.\n"); |
1216 | if (REPORT_BUGS_TO[0] && stream == stdout) | |
1217 | fprintf (stream, "Report bugs to \"%s\".\n", REPORT_BUGS_TO); | |
0bc68c49 DJ |
1218 | } |
1219 | ||
db42f210 PA |
1220 | static void |
1221 | gdbserver_show_disableable (FILE *stream) | |
1222 | { | |
1223 | fprintf (stream, "Disableable packets:\n" | |
1224 | " vCont \tAll vCont packets\n" | |
1225 | " qC \tQuerying the current thread\n" | |
1226 | " qfThreadInfo\tThread listing\n" | |
1227 | " Tthread \tPassing the thread specifier in the T stop reply packet\n" | |
1228 | " threads \tAll of the above\n"); | |
1229 | } | |
1230 | ||
1231 | ||
2d717e4f DJ |
1232 | #undef require_running |
1233 | #define require_running(BUF) \ | |
1234 | if (!target_running ()) \ | |
1235 | { \ | |
1236 | write_enn (BUF); \ | |
1237 | break; \ | |
1238 | } | |
1239 | ||
c906108c | 1240 | int |
da85418c | 1241 | main (int argc, char *argv[]) |
c906108c | 1242 | { |
f450004a | 1243 | char ch, status, *own_buf; |
7fb85e41 | 1244 | unsigned char *mem_buf; |
c906108c | 1245 | int i = 0; |
fc620387 | 1246 | int signal; |
c906108c SS |
1247 | unsigned int len; |
1248 | CORE_ADDR mem_addr; | |
0729219d DJ |
1249 | int bad_attach; |
1250 | int pid; | |
2d717e4f DJ |
1251 | char *arg_end, *port; |
1252 | char **next_arg = &argv[1]; | |
1253 | int multi_mode = 0; | |
1254 | int attach = 0; | |
1255 | int was_running; | |
c906108c | 1256 | |
2d717e4f | 1257 | while (*next_arg != NULL && **next_arg == '-') |
dd24457d | 1258 | { |
2d717e4f DJ |
1259 | if (strcmp (*next_arg, "--version") == 0) |
1260 | { | |
1261 | gdbserver_version (); | |
1262 | exit (0); | |
1263 | } | |
1264 | else if (strcmp (*next_arg, "--help") == 0) | |
1265 | { | |
c16158bc | 1266 | gdbserver_usage (stdout); |
2d717e4f DJ |
1267 | exit (0); |
1268 | } | |
1269 | else if (strcmp (*next_arg, "--attach") == 0) | |
1270 | attach = 1; | |
1271 | else if (strcmp (*next_arg, "--multi") == 0) | |
1272 | multi_mode = 1; | |
ccd213ac DJ |
1273 | else if (strcmp (*next_arg, "--wrapper") == 0) |
1274 | { | |
1275 | next_arg++; | |
1276 | ||
1277 | wrapper_argv = next_arg; | |
1278 | while (*next_arg != NULL && strcmp (*next_arg, "--") != 0) | |
1279 | next_arg++; | |
1280 | ||
1281 | if (next_arg == wrapper_argv || *next_arg == NULL) | |
1282 | { | |
c16158bc | 1283 | gdbserver_usage (stderr); |
ccd213ac DJ |
1284 | exit (1); |
1285 | } | |
1286 | ||
1287 | /* Consume the "--". */ | |
1288 | *next_arg = NULL; | |
1289 | } | |
2d717e4f DJ |
1290 | else if (strcmp (*next_arg, "--debug") == 0) |
1291 | debug_threads = 1; | |
db42f210 PA |
1292 | else if (strcmp (*next_arg, "--disable-packet") == 0) |
1293 | { | |
1294 | gdbserver_show_disableable (stdout); | |
1295 | exit (0); | |
1296 | } | |
1297 | else if (strncmp (*next_arg, | |
1298 | "--disable-packet=", | |
1299 | sizeof ("--disable-packet=") - 1) == 0) | |
1300 | { | |
1301 | char *packets, *tok; | |
1302 | ||
1303 | packets = *next_arg += sizeof ("--disable-packet=") - 1; | |
1304 | for (tok = strtok (packets, ","); | |
1305 | tok != NULL; | |
1306 | tok = strtok (NULL, ",")) | |
1307 | { | |
1308 | if (strcmp ("vCont", tok) == 0) | |
1309 | disable_packet_vCont = 1; | |
1310 | else if (strcmp ("Tthread", tok) == 0) | |
1311 | disable_packet_Tthread = 1; | |
1312 | else if (strcmp ("qC", tok) == 0) | |
1313 | disable_packet_qC = 1; | |
1314 | else if (strcmp ("qfThreadInfo", tok) == 0) | |
1315 | disable_packet_qfThreadInfo = 1; | |
1316 | else if (strcmp ("threads", tok) == 0) | |
1317 | { | |
1318 | disable_packet_vCont = 1; | |
1319 | disable_packet_Tthread = 1; | |
1320 | disable_packet_qC = 1; | |
1321 | disable_packet_qfThreadInfo = 1; | |
1322 | } | |
1323 | else | |
1324 | { | |
1325 | fprintf (stderr, "Don't know how to disable \"%s\".\n\n", | |
1326 | tok); | |
1327 | gdbserver_show_disableable (stderr); | |
1328 | exit (1); | |
1329 | } | |
1330 | } | |
1331 | } | |
2d717e4f DJ |
1332 | else |
1333 | { | |
1334 | fprintf (stderr, "Unknown argument: %s\n", *next_arg); | |
1335 | exit (1); | |
1336 | } | |
dd24457d | 1337 | |
2d717e4f DJ |
1338 | next_arg++; |
1339 | continue; | |
dd24457d DJ |
1340 | } |
1341 | ||
c5aa993b | 1342 | if (setjmp (toplevel)) |
c906108c | 1343 | { |
c5aa993b JM |
1344 | fprintf (stderr, "Exiting\n"); |
1345 | exit (1); | |
c906108c SS |
1346 | } |
1347 | ||
2d717e4f DJ |
1348 | port = *next_arg; |
1349 | next_arg++; | |
1350 | if (port == NULL || (!attach && !multi_mode && *next_arg == NULL)) | |
1351 | { | |
c16158bc | 1352 | gdbserver_usage (stderr); |
2d717e4f DJ |
1353 | exit (1); |
1354 | } | |
1355 | ||
0729219d DJ |
1356 | bad_attach = 0; |
1357 | pid = 0; | |
2d717e4f DJ |
1358 | |
1359 | /* --attach used to come after PORT, so allow it there for | |
1360 | compatibility. */ | |
1361 | if (*next_arg != NULL && strcmp (*next_arg, "--attach") == 0) | |
45b7b345 | 1362 | { |
2d717e4f DJ |
1363 | attach = 1; |
1364 | next_arg++; | |
45b7b345 DJ |
1365 | } |
1366 | ||
2d717e4f DJ |
1367 | if (attach |
1368 | && (*next_arg == NULL | |
1369 | || (*next_arg)[0] == '\0' | |
1370 | || (pid = strtoul (*next_arg, &arg_end, 0)) == 0 | |
1371 | || *arg_end != '\0' | |
1372 | || next_arg[1] != NULL)) | |
1373 | bad_attach = 1; | |
1374 | ||
1375 | if (bad_attach) | |
dd24457d | 1376 | { |
c16158bc | 1377 | gdbserver_usage (stderr); |
dd24457d DJ |
1378 | exit (1); |
1379 | } | |
c906108c | 1380 | |
a20d5e98 | 1381 | initialize_async_io (); |
4ce44c66 JM |
1382 | initialize_low (); |
1383 | ||
255e7678 | 1384 | own_buf = malloc (PBUFSIZ + 1); |
7fb85e41 | 1385 | mem_buf = malloc (PBUFSIZ); |
0a30fbc4 | 1386 | |
2d717e4f | 1387 | if (pid == 0 && *next_arg != NULL) |
45b7b345 | 1388 | { |
2d717e4f DJ |
1389 | int i, n; |
1390 | ||
1391 | n = argc - (next_arg - argv); | |
1392 | program_argv = malloc (sizeof (char *) * (n + 1)); | |
1393 | for (i = 0; i < n; i++) | |
1394 | program_argv[i] = strdup (next_arg[i]); | |
1395 | program_argv[i] = NULL; | |
1396 | ||
45b7b345 | 1397 | /* Wait till we are at first instruction in program. */ |
2d717e4f | 1398 | signal = start_inferior (program_argv, &status); |
c906108c | 1399 | |
c588c53c MS |
1400 | /* We are now (hopefully) stopped at the first instruction of |
1401 | the target process. This assumes that the target process was | |
1402 | successfully created. */ | |
45b7b345 | 1403 | } |
2d717e4f DJ |
1404 | else if (pid != 0) |
1405 | { | |
1406 | if (attach_inferior (pid, &status, &signal) == -1) | |
1407 | error ("Attaching not supported on this target"); | |
1408 | ||
1409 | /* Otherwise succeeded. */ | |
1410 | } | |
45b7b345 DJ |
1411 | else |
1412 | { | |
2d717e4f DJ |
1413 | status = 'W'; |
1414 | signal = 0; | |
45b7b345 | 1415 | } |
c906108c | 1416 | |
311de423 PA |
1417 | /* Don't report shared library events on the initial connection, |
1418 | even if some libraries are preloaded. Avoids the "stopped by | |
1419 | shared library event" notice on gdb side. */ | |
1420 | dlls_changed = 0; | |
1421 | ||
8264bb58 DJ |
1422 | if (setjmp (toplevel)) |
1423 | { | |
1424 | fprintf (stderr, "Killing inferior\n"); | |
1425 | kill_inferior (); | |
1426 | exit (1); | |
1427 | } | |
1428 | ||
c588c53c | 1429 | if (status == 'W' || status == 'X') |
2d717e4f DJ |
1430 | was_running = 0; |
1431 | else | |
1432 | was_running = 1; | |
1433 | ||
1434 | if (!was_running && !multi_mode) | |
c588c53c | 1435 | { |
2d717e4f | 1436 | fprintf (stderr, "No program to debug. GDBserver exiting.\n"); |
c588c53c MS |
1437 | exit (1); |
1438 | } | |
1439 | ||
c906108c SS |
1440 | while (1) |
1441 | { | |
2d717e4f | 1442 | remote_open (port); |
c906108c | 1443 | |
c5aa993b | 1444 | restart: |
2d717e4f DJ |
1445 | if (setjmp (toplevel) != 0) |
1446 | { | |
1447 | /* An error occurred. */ | |
1448 | if (response_needed) | |
1449 | { | |
1450 | write_enn (own_buf); | |
1451 | putpkt (own_buf); | |
1452 | } | |
1453 | } | |
1454 | ||
a20d5e98 | 1455 | disable_async_io (); |
2d717e4f | 1456 | while (!exit_requested) |
c906108c SS |
1457 | { |
1458 | unsigned char sig; | |
01f9e8fa DJ |
1459 | int packet_len; |
1460 | int new_packet_len = -1; | |
1461 | ||
2d717e4f | 1462 | response_needed = 0; |
01f9e8fa DJ |
1463 | packet_len = getpkt (own_buf); |
1464 | if (packet_len <= 0) | |
1465 | break; | |
2d717e4f | 1466 | response_needed = 1; |
01f9e8fa | 1467 | |
c906108c SS |
1468 | i = 0; |
1469 | ch = own_buf[i++]; | |
1470 | switch (ch) | |
1471 | { | |
ce3a066d | 1472 | case 'q': |
0e7f50da | 1473 | handle_query (own_buf, packet_len, &new_packet_len); |
ce3a066d | 1474 | break; |
89be2091 DJ |
1475 | case 'Q': |
1476 | handle_general_set (own_buf); | |
1477 | break; | |
6ad8ae5c | 1478 | case 'D': |
2d717e4f | 1479 | require_running (own_buf); |
6ad8ae5c | 1480 | fprintf (stderr, "Detaching from inferior\n"); |
444d6139 | 1481 | if (detach_inferior () != 0) |
2d717e4f | 1482 | write_enn (own_buf); |
444d6139 PA |
1483 | else |
1484 | { | |
1485 | write_ok (own_buf); | |
6ad8ae5c | 1486 | |
2d717e4f DJ |
1487 | if (extended_protocol) |
1488 | { | |
1489 | /* Treat this like a normal program exit. */ | |
1490 | signal = 0; | |
1491 | status = 'W'; | |
1492 | } | |
1493 | else | |
1494 | { | |
1495 | putpkt (own_buf); | |
1496 | remote_close (); | |
6ad8ae5c | 1497 | |
2d717e4f DJ |
1498 | /* If we are attached, then we can exit. Otherwise, we |
1499 | need to hang around doing nothing, until the child | |
1500 | is gone. */ | |
1501 | if (!attached) | |
1502 | join_inferior (); | |
1503 | ||
1504 | exit (0); | |
1505 | } | |
444d6139 | 1506 | } |
2d717e4f | 1507 | break; |
c906108c | 1508 | case '!': |
2d717e4f DJ |
1509 | extended_protocol = 1; |
1510 | write_ok (own_buf); | |
c906108c SS |
1511 | break; |
1512 | case '?': | |
1513 | prepare_resume_reply (own_buf, status, signal); | |
1514 | break; | |
1515 | case 'H': | |
a06660f7 | 1516 | if (own_buf[1] == 'c' || own_buf[1] == 'g' || own_buf[1] == 's') |
c906108c | 1517 | { |
a06660f7 DJ |
1518 | unsigned long gdb_id, thread_id; |
1519 | ||
2d717e4f | 1520 | require_running (own_buf); |
a06660f7 | 1521 | gdb_id = strtoul (&own_buf[2], NULL, 16); |
2d717e4f DJ |
1522 | if (gdb_id == 0 || gdb_id == -1) |
1523 | thread_id = gdb_id; | |
1524 | else | |
a06660f7 | 1525 | { |
2d717e4f DJ |
1526 | thread_id = gdb_id_to_thread_id (gdb_id); |
1527 | if (thread_id == 0) | |
1528 | { | |
1529 | write_enn (own_buf); | |
1530 | break; | |
1531 | } | |
a06660f7 DJ |
1532 | } |
1533 | ||
1534 | if (own_buf[1] == 'g') | |
1535 | { | |
1536 | general_thread = thread_id; | |
1537 | set_desired_inferior (1); | |
1538 | } | |
1539 | else if (own_buf[1] == 'c') | |
1540 | cont_thread = thread_id; | |
1541 | else if (own_buf[1] == 's') | |
1542 | step_thread = thread_id; | |
1543 | ||
0d62e5e8 | 1544 | write_ok (own_buf); |
a06660f7 DJ |
1545 | } |
1546 | else | |
1547 | { | |
c906108c SS |
1548 | /* Silently ignore it so that gdb can extend the protocol |
1549 | without compatibility headaches. */ | |
1550 | own_buf[0] = '\0'; | |
c906108c SS |
1551 | } |
1552 | break; | |
1553 | case 'g': | |
2d717e4f | 1554 | require_running (own_buf); |
0d62e5e8 | 1555 | set_desired_inferior (1); |
0a30fbc4 | 1556 | registers_to_string (own_buf); |
c906108c SS |
1557 | break; |
1558 | case 'G': | |
2d717e4f | 1559 | require_running (own_buf); |
0d62e5e8 | 1560 | set_desired_inferior (1); |
0a30fbc4 | 1561 | registers_from_string (&own_buf[1]); |
c906108c SS |
1562 | write_ok (own_buf); |
1563 | break; | |
1564 | case 'm': | |
2d717e4f | 1565 | require_running (own_buf); |
c906108c | 1566 | decode_m_packet (&own_buf[1], &mem_addr, &len); |
c3e735a6 DJ |
1567 | if (read_inferior_memory (mem_addr, mem_buf, len) == 0) |
1568 | convert_int_to_ascii (mem_buf, own_buf, len); | |
1569 | else | |
1570 | write_enn (own_buf); | |
c906108c SS |
1571 | break; |
1572 | case 'M': | |
2d717e4f | 1573 | require_running (own_buf); |
c906108c SS |
1574 | decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf); |
1575 | if (write_inferior_memory (mem_addr, mem_buf, len) == 0) | |
1576 | write_ok (own_buf); | |
1577 | else | |
1578 | write_enn (own_buf); | |
1579 | break; | |
01f9e8fa | 1580 | case 'X': |
2d717e4f | 1581 | require_running (own_buf); |
01f9e8fa DJ |
1582 | if (decode_X_packet (&own_buf[1], packet_len - 1, |
1583 | &mem_addr, &len, mem_buf) < 0 | |
1584 | || write_inferior_memory (mem_addr, mem_buf, len) != 0) | |
1585 | write_enn (own_buf); | |
1586 | else | |
1587 | write_ok (own_buf); | |
1588 | break; | |
c906108c | 1589 | case 'C': |
2d717e4f | 1590 | require_running (own_buf); |
c906108c | 1591 | convert_ascii_to_int (own_buf + 1, &sig, 1); |
0e98d0a7 DJ |
1592 | if (target_signal_to_host_p (sig)) |
1593 | signal = target_signal_to_host (sig); | |
1594 | else | |
1595 | signal = 0; | |
27524b67 | 1596 | myresume (own_buf, 0, &signal, &status); |
c906108c SS |
1597 | break; |
1598 | case 'S': | |
2d717e4f | 1599 | require_running (own_buf); |
c906108c | 1600 | convert_ascii_to_int (own_buf + 1, &sig, 1); |
0e98d0a7 DJ |
1601 | if (target_signal_to_host_p (sig)) |
1602 | signal = target_signal_to_host (sig); | |
1603 | else | |
1604 | signal = 0; | |
27524b67 | 1605 | myresume (own_buf, 1, &signal, &status); |
c906108c SS |
1606 | break; |
1607 | case 'c': | |
2d717e4f | 1608 | require_running (own_buf); |
a20d5e98 | 1609 | signal = 0; |
27524b67 | 1610 | myresume (own_buf, 0, &signal, &status); |
c906108c SS |
1611 | break; |
1612 | case 's': | |
2d717e4f | 1613 | require_running (own_buf); |
a20d5e98 | 1614 | signal = 0; |
27524b67 | 1615 | myresume (own_buf, 1, &signal, &status); |
c906108c | 1616 | break; |
e013ee27 OF |
1617 | case 'Z': |
1618 | { | |
1619 | char *lenptr; | |
1620 | char *dataptr; | |
1621 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1622 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1623 | char type = own_buf[1]; | |
1624 | ||
1625 | if (the_target->insert_watchpoint == NULL | |
1626 | || (type < '2' || type > '4')) | |
1627 | { | |
1628 | /* No watchpoint support or not a watchpoint command; | |
1629 | unrecognized either way. */ | |
1630 | own_buf[0] = '\0'; | |
1631 | } | |
1632 | else | |
1633 | { | |
1634 | int res; | |
1635 | ||
2d717e4f | 1636 | require_running (own_buf); |
e013ee27 OF |
1637 | res = (*the_target->insert_watchpoint) (type, addr, len); |
1638 | if (res == 0) | |
1639 | write_ok (own_buf); | |
1640 | else if (res == 1) | |
1641 | /* Unsupported. */ | |
1642 | own_buf[0] = '\0'; | |
1643 | else | |
1644 | write_enn (own_buf); | |
1645 | } | |
1646 | break; | |
1647 | } | |
1648 | case 'z': | |
1649 | { | |
1650 | char *lenptr; | |
1651 | char *dataptr; | |
1652 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1653 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1654 | char type = own_buf[1]; | |
1655 | ||
1656 | if (the_target->remove_watchpoint == NULL | |
1657 | || (type < '2' || type > '4')) | |
1658 | { | |
1659 | /* No watchpoint support or not a watchpoint command; | |
1660 | unrecognized either way. */ | |
1661 | own_buf[0] = '\0'; | |
1662 | } | |
1663 | else | |
1664 | { | |
1665 | int res; | |
1666 | ||
2d717e4f | 1667 | require_running (own_buf); |
e013ee27 OF |
1668 | res = (*the_target->remove_watchpoint) (type, addr, len); |
1669 | if (res == 0) | |
1670 | write_ok (own_buf); | |
1671 | else if (res == 1) | |
1672 | /* Unsupported. */ | |
1673 | own_buf[0] = '\0'; | |
1674 | else | |
1675 | write_enn (own_buf); | |
1676 | } | |
1677 | break; | |
1678 | } | |
c906108c | 1679 | case 'k': |
2d717e4f DJ |
1680 | response_needed = 0; |
1681 | if (!target_running ()) | |
1682 | /* The packet we received doesn't make sense - but we | |
1683 | can't reply to it, either. */ | |
1684 | goto restart; | |
1685 | ||
c906108c SS |
1686 | fprintf (stderr, "Killing inferior\n"); |
1687 | kill_inferior (); | |
2d717e4f DJ |
1688 | |
1689 | /* When using the extended protocol, we wait with no | |
1690 | program running. The traditional protocol will exit | |
1691 | instead. */ | |
c906108c SS |
1692 | if (extended_protocol) |
1693 | { | |
2d717e4f DJ |
1694 | status = 'X'; |
1695 | signal = TARGET_SIGNAL_KILL; | |
1696 | was_running = 0; | |
c906108c | 1697 | goto restart; |
c906108c SS |
1698 | } |
1699 | else | |
1700 | { | |
1701 | exit (0); | |
1702 | break; | |
1703 | } | |
1704 | case 'T': | |
a06660f7 DJ |
1705 | { |
1706 | unsigned long gdb_id, thread_id; | |
1707 | ||
2d717e4f | 1708 | require_running (own_buf); |
a06660f7 DJ |
1709 | gdb_id = strtoul (&own_buf[1], NULL, 16); |
1710 | thread_id = gdb_id_to_thread_id (gdb_id); | |
1711 | if (thread_id == 0) | |
1712 | { | |
1713 | write_enn (own_buf); | |
1714 | break; | |
1715 | } | |
1716 | ||
1717 | if (mythread_alive (thread_id)) | |
1718 | write_ok (own_buf); | |
1719 | else | |
1720 | write_enn (own_buf); | |
1721 | } | |
c906108c SS |
1722 | break; |
1723 | case 'R': | |
2d717e4f DJ |
1724 | response_needed = 0; |
1725 | ||
c906108c | 1726 | /* Restarting the inferior is only supported in the |
c5aa993b | 1727 | extended protocol. */ |
c906108c SS |
1728 | if (extended_protocol) |
1729 | { | |
2d717e4f DJ |
1730 | if (target_running ()) |
1731 | kill_inferior (); | |
c906108c SS |
1732 | fprintf (stderr, "GDBserver restarting\n"); |
1733 | ||
1734 | /* Wait till we are at 1st instruction in prog. */ | |
2d717e4f DJ |
1735 | if (program_argv != NULL) |
1736 | signal = start_inferior (program_argv, &status); | |
1737 | else | |
1738 | { | |
1739 | status = 'X'; | |
1740 | signal = TARGET_SIGNAL_KILL; | |
1741 | } | |
c906108c | 1742 | goto restart; |
c906108c SS |
1743 | } |
1744 | else | |
1745 | { | |
1746 | /* It is a request we don't understand. Respond with an | |
1747 | empty packet so that gdb knows that we don't support this | |
1748 | request. */ | |
1749 | own_buf[0] = '\0'; | |
1750 | break; | |
1751 | } | |
64386c31 DJ |
1752 | case 'v': |
1753 | /* Extended (long) request. */ | |
a6b151f1 DJ |
1754 | handle_v_requests (own_buf, &status, &signal, |
1755 | packet_len, &new_packet_len); | |
64386c31 | 1756 | break; |
a6b151f1 | 1757 | |
c906108c SS |
1758 | default: |
1759 | /* It is a request we don't understand. Respond with an | |
c5aa993b JM |
1760 | empty packet so that gdb knows that we don't support this |
1761 | request. */ | |
c906108c SS |
1762 | own_buf[0] = '\0'; |
1763 | break; | |
1764 | } | |
1765 | ||
01f9e8fa DJ |
1766 | if (new_packet_len != -1) |
1767 | putpkt_binary (own_buf, new_packet_len); | |
1768 | else | |
1769 | putpkt (own_buf); | |
c906108c | 1770 | |
2d717e4f DJ |
1771 | response_needed = 0; |
1772 | ||
1773 | if (was_running && (status == 'W' || status == 'X')) | |
c906108c | 1774 | { |
2d717e4f | 1775 | was_running = 0; |
c906108c | 1776 | |
2d717e4f DJ |
1777 | if (status == 'W') |
1778 | fprintf (stderr, | |
1779 | "\nChild exited with status %d\n", signal); | |
1780 | if (status == 'X') | |
1781 | fprintf (stderr, "\nChild terminated with signal = 0x%x (%s)\n", | |
1782 | target_signal_to_host (signal), | |
1783 | target_signal_to_name (signal)); | |
1784 | ||
1785 | if (extended_protocol) | |
1786 | goto restart; | |
c906108c SS |
1787 | else |
1788 | { | |
1789 | fprintf (stderr, "GDBserver exiting\n"); | |
1790 | exit (0); | |
1791 | } | |
1792 | } | |
c906108c | 1793 | |
2d717e4f DJ |
1794 | if (status != 'W' && status != 'X') |
1795 | was_running = 1; | |
1796 | } | |
c906108c | 1797 | |
2d717e4f DJ |
1798 | /* If an exit was requested (using the "monitor exit" command), |
1799 | terminate now. The only other way to get here is for | |
1800 | getpkt to fail; close the connection and reopen it at the | |
1801 | top of the loop. */ | |
c906108c | 1802 | |
2d717e4f | 1803 | if (exit_requested) |
c906108c SS |
1804 | { |
1805 | remote_close (); | |
2d717e4f DJ |
1806 | if (attached && target_running ()) |
1807 | detach_inferior (); | |
1808 | else if (target_running ()) | |
1809 | kill_inferior (); | |
c906108c SS |
1810 | exit (0); |
1811 | } | |
1812 | else | |
1813 | { | |
45b7b345 DJ |
1814 | fprintf (stderr, "Remote side has terminated connection. " |
1815 | "GDBserver will reopen the connection.\n"); | |
c906108c SS |
1816 | remote_close (); |
1817 | } | |
1818 | } | |
1819 | } |