Commit | Line | Data |
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c906108c | 1 | /* Main code for remote server for GDB. |
6aba47ca | 2 | Copyright (C) 1989, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2002, 2003, |
0fb0cc75 | 3 | 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "server.h" | |
21 | ||
68070c10 | 22 | #if HAVE_UNISTD_H |
a9fa9f7d | 23 | #include <unistd.h> |
68070c10 PA |
24 | #endif |
25 | #if HAVE_SIGNAL_H | |
a9fa9f7d | 26 | #include <signal.h> |
68070c10 | 27 | #endif |
b80864fb | 28 | #if HAVE_SYS_WAIT_H |
a9fa9f7d | 29 | #include <sys/wait.h> |
b80864fb | 30 | #endif |
ec56be1b PA |
31 | #if HAVE_MALLOC_H |
32 | #include <malloc.h> | |
33 | #endif | |
a9fa9f7d | 34 | |
a1928bad DJ |
35 | unsigned long cont_thread; |
36 | unsigned long general_thread; | |
37 | unsigned long step_thread; | |
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 | ||
a6f3e723 SL |
273 | if (strcmp (own_buf, "QStartNoAckMode") == 0) |
274 | { | |
275 | if (remote_debug) | |
276 | { | |
277 | fprintf (stderr, "[noack mode enabled]\n"); | |
278 | fflush (stderr); | |
279 | } | |
280 | ||
281 | noack_mode = 1; | |
282 | write_ok (own_buf); | |
283 | return; | |
284 | } | |
285 | ||
89be2091 DJ |
286 | /* Otherwise we didn't know what packet it was. Say we didn't |
287 | understand it. */ | |
288 | own_buf[0] = 0; | |
289 | } | |
290 | ||
23181151 | 291 | static const char * |
fb1e4ffc | 292 | get_features_xml (const char *annex) |
23181151 | 293 | { |
9b4b61c8 UW |
294 | /* gdbserver_xmltarget defines what to return when looking |
295 | for the "target.xml" file. Its contents can either be | |
296 | verbatim XML code (prefixed with a '@') or else the name | |
297 | of the actual XML file to be used in place of "target.xml". | |
fb1e4ffc | 298 | |
9b4b61c8 UW |
299 | This variable is set up from the auto-generated |
300 | init_registers_... routine for the current target. */ | |
fb1e4ffc | 301 | |
9b4b61c8 | 302 | if (gdbserver_xmltarget |
221c031f | 303 | && strcmp (annex, "target.xml") == 0) |
23181151 | 304 | { |
9b4b61c8 UW |
305 | if (*gdbserver_xmltarget == '@') |
306 | return gdbserver_xmltarget + 1; | |
23181151 | 307 | else |
9b4b61c8 | 308 | annex = gdbserver_xmltarget; |
23181151 DJ |
309 | } |
310 | ||
9b4b61c8 UW |
311 | #ifdef USE_XML |
312 | { | |
313 | extern const char *const xml_builtin[][2]; | |
314 | int i; | |
315 | ||
316 | /* Look for the annex. */ | |
317 | for (i = 0; xml_builtin[i][0] != NULL; i++) | |
318 | if (strcmp (annex, xml_builtin[i][0]) == 0) | |
319 | break; | |
320 | ||
321 | if (xml_builtin[i][0] != NULL) | |
322 | return xml_builtin[i][1]; | |
323 | } | |
324 | #endif | |
325 | ||
326 | return NULL; | |
23181151 DJ |
327 | } |
328 | ||
c74d0ad8 DJ |
329 | void |
330 | monitor_show_help (void) | |
331 | { | |
332 | monitor_output ("The following monitor commands are supported:\n"); | |
333 | monitor_output (" set debug <0|1>\n"); | |
334 | monitor_output (" Enable general debugging messages\n"); | |
335 | monitor_output (" set remote-debug <0|1>\n"); | |
336 | monitor_output (" Enable remote protocol debugging messages\n"); | |
ecd7ecbc DJ |
337 | monitor_output (" exit\n"); |
338 | monitor_output (" Quit GDBserver\n"); | |
c74d0ad8 DJ |
339 | } |
340 | ||
08388c79 DE |
341 | /* Subroutine of handle_search_memory to simplify it. */ |
342 | ||
343 | static int | |
344 | handle_search_memory_1 (CORE_ADDR start_addr, CORE_ADDR search_space_len, | |
345 | gdb_byte *pattern, unsigned pattern_len, | |
346 | gdb_byte *search_buf, | |
347 | unsigned chunk_size, unsigned search_buf_size, | |
348 | CORE_ADDR *found_addrp) | |
349 | { | |
350 | /* Prime the search buffer. */ | |
351 | ||
352 | if (read_inferior_memory (start_addr, search_buf, search_buf_size) != 0) | |
353 | { | |
5e1471f5 | 354 | warning ("Unable to access target memory at 0x%lx, halting search.", |
08388c79 DE |
355 | (long) start_addr); |
356 | return -1; | |
357 | } | |
358 | ||
359 | /* Perform the search. | |
360 | ||
361 | The loop is kept simple by allocating [N + pattern-length - 1] bytes. | |
362 | When we've scanned N bytes we copy the trailing bytes to the start and | |
363 | read in another N bytes. */ | |
364 | ||
365 | while (search_space_len >= pattern_len) | |
366 | { | |
367 | gdb_byte *found_ptr; | |
368 | unsigned nr_search_bytes = (search_space_len < search_buf_size | |
369 | ? search_space_len | |
370 | : search_buf_size); | |
371 | ||
372 | found_ptr = memmem (search_buf, nr_search_bytes, pattern, pattern_len); | |
373 | ||
374 | if (found_ptr != NULL) | |
375 | { | |
376 | CORE_ADDR found_addr = start_addr + (found_ptr - search_buf); | |
377 | *found_addrp = found_addr; | |
378 | return 1; | |
379 | } | |
380 | ||
381 | /* Not found in this chunk, skip to next chunk. */ | |
382 | ||
383 | /* Don't let search_space_len wrap here, it's unsigned. */ | |
384 | if (search_space_len >= chunk_size) | |
385 | search_space_len -= chunk_size; | |
386 | else | |
387 | search_space_len = 0; | |
388 | ||
389 | if (search_space_len >= pattern_len) | |
390 | { | |
391 | unsigned keep_len = search_buf_size - chunk_size; | |
392 | CORE_ADDR read_addr = start_addr + keep_len; | |
393 | int nr_to_read; | |
394 | ||
395 | /* Copy the trailing part of the previous iteration to the front | |
396 | of the buffer for the next iteration. */ | |
397 | memcpy (search_buf, search_buf + chunk_size, keep_len); | |
398 | ||
399 | nr_to_read = (search_space_len - keep_len < chunk_size | |
400 | ? search_space_len - keep_len | |
401 | : chunk_size); | |
402 | ||
403 | if (read_inferior_memory (read_addr, search_buf + keep_len, | |
404 | nr_to_read) != 0) | |
405 | { | |
5e1471f5 | 406 | warning ("Unable to access target memory at 0x%lx, halting search.", |
08388c79 DE |
407 | (long) read_addr); |
408 | return -1; | |
409 | } | |
410 | ||
411 | start_addr += chunk_size; | |
412 | } | |
413 | } | |
414 | ||
415 | /* Not found. */ | |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
420 | /* Handle qSearch:memory packets. */ | |
421 | ||
422 | static void | |
423 | handle_search_memory (char *own_buf, int packet_len) | |
424 | { | |
425 | CORE_ADDR start_addr; | |
426 | CORE_ADDR search_space_len; | |
427 | gdb_byte *pattern; | |
428 | unsigned int pattern_len; | |
429 | /* NOTE: also defined in find.c testcase. */ | |
430 | #define SEARCH_CHUNK_SIZE 16000 | |
431 | const unsigned chunk_size = SEARCH_CHUNK_SIZE; | |
432 | /* Buffer to hold memory contents for searching. */ | |
433 | gdb_byte *search_buf; | |
434 | unsigned search_buf_size; | |
435 | int found; | |
436 | CORE_ADDR found_addr; | |
437 | int cmd_name_len = sizeof ("qSearch:memory:") - 1; | |
438 | ||
bca929d3 | 439 | pattern = xmalloc (packet_len); |
08388c79 DE |
440 | if (pattern == NULL) |
441 | { | |
5e1471f5 | 442 | error ("Unable to allocate memory to perform the search"); |
08388c79 DE |
443 | strcpy (own_buf, "E00"); |
444 | return; | |
445 | } | |
446 | if (decode_search_memory_packet (own_buf + cmd_name_len, | |
447 | packet_len - cmd_name_len, | |
448 | &start_addr, &search_space_len, | |
449 | pattern, &pattern_len) < 0) | |
450 | { | |
451 | free (pattern); | |
5e1471f5 | 452 | error ("Error in parsing qSearch:memory packet"); |
08388c79 DE |
453 | strcpy (own_buf, "E00"); |
454 | return; | |
455 | } | |
456 | ||
457 | search_buf_size = chunk_size + pattern_len - 1; | |
458 | ||
459 | /* No point in trying to allocate a buffer larger than the search space. */ | |
460 | if (search_space_len < search_buf_size) | |
461 | search_buf_size = search_space_len; | |
462 | ||
bca929d3 | 463 | search_buf = xmalloc (search_buf_size); |
08388c79 DE |
464 | if (search_buf == NULL) |
465 | { | |
466 | free (pattern); | |
5e1471f5 | 467 | error ("Unable to allocate memory to perform the search"); |
08388c79 DE |
468 | strcpy (own_buf, "E00"); |
469 | return; | |
470 | } | |
471 | ||
472 | found = handle_search_memory_1 (start_addr, search_space_len, | |
473 | pattern, pattern_len, | |
474 | search_buf, chunk_size, search_buf_size, | |
475 | &found_addr); | |
476 | ||
477 | if (found > 0) | |
478 | sprintf (own_buf, "1,%lx", (long) found_addr); | |
479 | else if (found == 0) | |
480 | strcpy (own_buf, "0"); | |
481 | else | |
482 | strcpy (own_buf, "E00"); | |
483 | ||
484 | free (search_buf); | |
485 | free (pattern); | |
486 | } | |
487 | ||
2d717e4f DJ |
488 | #define require_running(BUF) \ |
489 | if (!target_running ()) \ | |
490 | { \ | |
491 | write_enn (BUF); \ | |
492 | return; \ | |
493 | } | |
494 | ||
ce3a066d DJ |
495 | /* Handle all of the extended 'q' packets. */ |
496 | void | |
0e7f50da | 497 | handle_query (char *own_buf, int packet_len, int *new_packet_len_p) |
ce3a066d | 498 | { |
0d62e5e8 DJ |
499 | static struct inferior_list_entry *thread_ptr; |
500 | ||
bb63802a | 501 | /* Reply the current thread id. */ |
db42f210 | 502 | if (strcmp ("qC", own_buf) == 0 && !disable_packet_qC) |
bb63802a | 503 | { |
2d717e4f | 504 | require_running (own_buf); |
bb63802a UW |
505 | thread_ptr = all_threads.head; |
506 | sprintf (own_buf, "QC%x", | |
db42f210 | 507 | thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
bb63802a UW |
508 | return; |
509 | } | |
510 | ||
ce3a066d DJ |
511 | if (strcmp ("qSymbol::", own_buf) == 0) |
512 | { | |
2d717e4f | 513 | if (target_running () && the_target->look_up_symbols != NULL) |
2f2893d9 DJ |
514 | (*the_target->look_up_symbols) (); |
515 | ||
ce3a066d DJ |
516 | strcpy (own_buf, "OK"); |
517 | return; | |
518 | } | |
519 | ||
db42f210 | 520 | if (!disable_packet_qfThreadInfo) |
0d62e5e8 | 521 | { |
db42f210 | 522 | if (strcmp ("qfThreadInfo", own_buf) == 0) |
0d62e5e8 | 523 | { |
db42f210 PA |
524 | require_running (own_buf); |
525 | thread_ptr = all_threads.head; | |
a06660f7 | 526 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); |
0d62e5e8 DJ |
527 | thread_ptr = thread_ptr->next; |
528 | return; | |
529 | } | |
db42f210 PA |
530 | |
531 | if (strcmp ("qsThreadInfo", own_buf) == 0) | |
0d62e5e8 | 532 | { |
db42f210 PA |
533 | require_running (own_buf); |
534 | if (thread_ptr != NULL) | |
535 | { | |
536 | sprintf (own_buf, "m%x", thread_to_gdb_id ((struct thread_info *)thread_ptr)); | |
537 | thread_ptr = thread_ptr->next; | |
538 | return; | |
539 | } | |
540 | else | |
541 | { | |
542 | sprintf (own_buf, "l"); | |
543 | return; | |
544 | } | |
0d62e5e8 DJ |
545 | } |
546 | } | |
aa691b87 | 547 | |
52fb6437 NS |
548 | if (the_target->read_offsets != NULL |
549 | && strcmp ("qOffsets", own_buf) == 0) | |
550 | { | |
551 | CORE_ADDR text, data; | |
2d717e4f DJ |
552 | |
553 | require_running (own_buf); | |
52fb6437 NS |
554 | if (the_target->read_offsets (&text, &data)) |
555 | sprintf (own_buf, "Text=%lX;Data=%lX;Bss=%lX", | |
556 | (long)text, (long)data, (long)data); | |
557 | else | |
558 | write_enn (own_buf); | |
559 | ||
560 | return; | |
561 | } | |
562 | ||
0e7f50da UW |
563 | if (the_target->qxfer_spu != NULL |
564 | && strncmp ("qXfer:spu:read:", own_buf, 15) == 0) | |
565 | { | |
566 | char *annex; | |
567 | int n; | |
568 | unsigned int len; | |
569 | CORE_ADDR ofs; | |
570 | unsigned char *spu_buf; | |
571 | ||
2d717e4f | 572 | require_running (own_buf); |
0e7f50da UW |
573 | strcpy (own_buf, "E00"); |
574 | if (decode_xfer_read (own_buf + 15, &annex, &ofs, &len) < 0) | |
575 | return; | |
576 | if (len > PBUFSIZ - 2) | |
577 | len = PBUFSIZ - 2; | |
bca929d3 | 578 | spu_buf = xmalloc (len + 1); |
0e7f50da UW |
579 | if (!spu_buf) |
580 | return; | |
581 | ||
582 | n = (*the_target->qxfer_spu) (annex, spu_buf, NULL, ofs, len + 1); | |
583 | if (n < 0) | |
584 | write_enn (own_buf); | |
585 | else if (n > len) | |
586 | *new_packet_len_p = write_qxfer_response | |
587 | (own_buf, spu_buf, len, 1); | |
588 | else | |
589 | *new_packet_len_p = write_qxfer_response | |
590 | (own_buf, spu_buf, n, 0); | |
591 | ||
592 | free (spu_buf); | |
593 | return; | |
594 | } | |
595 | ||
596 | if (the_target->qxfer_spu != NULL | |
597 | && strncmp ("qXfer:spu:write:", own_buf, 16) == 0) | |
598 | { | |
599 | char *annex; | |
600 | int n; | |
601 | unsigned int len; | |
602 | CORE_ADDR ofs; | |
603 | unsigned char *spu_buf; | |
604 | ||
2d717e4f | 605 | require_running (own_buf); |
0e7f50da | 606 | strcpy (own_buf, "E00"); |
bca929d3 | 607 | spu_buf = xmalloc (packet_len - 15); |
0e7f50da UW |
608 | if (!spu_buf) |
609 | return; | |
610 | if (decode_xfer_write (own_buf + 16, packet_len - 16, &annex, | |
611 | &ofs, &len, spu_buf) < 0) | |
612 | { | |
613 | free (spu_buf); | |
614 | return; | |
615 | } | |
616 | ||
617 | n = (*the_target->qxfer_spu) | |
618 | (annex, NULL, (unsigned const char *)spu_buf, ofs, len); | |
619 | if (n < 0) | |
620 | write_enn (own_buf); | |
621 | else | |
622 | sprintf (own_buf, "%x", n); | |
623 | ||
624 | free (spu_buf); | |
625 | return; | |
626 | } | |
627 | ||
aa691b87 | 628 | if (the_target->read_auxv != NULL |
0876f84a | 629 | && strncmp ("qXfer:auxv:read:", own_buf, 16) == 0) |
aa691b87 | 630 | { |
0876f84a DJ |
631 | unsigned char *data; |
632 | int n; | |
aa691b87 RM |
633 | CORE_ADDR ofs; |
634 | unsigned int len; | |
0876f84a DJ |
635 | char *annex; |
636 | ||
2d717e4f DJ |
637 | require_running (own_buf); |
638 | ||
0876f84a DJ |
639 | /* Reject any annex; grab the offset and length. */ |
640 | if (decode_xfer_read (own_buf + 16, &annex, &ofs, &len) < 0 | |
641 | || annex[0] != '\0') | |
642 | { | |
643 | strcpy (own_buf, "E00"); | |
644 | return; | |
645 | } | |
646 | ||
647 | /* Read one extra byte, as an indicator of whether there is | |
648 | more. */ | |
649 | if (len > PBUFSIZ - 2) | |
650 | len = PBUFSIZ - 2; | |
bca929d3 | 651 | data = xmalloc (len + 1); |
0876f84a | 652 | n = (*the_target->read_auxv) (ofs, data, len + 1); |
000ef4f0 DJ |
653 | if (n < 0) |
654 | write_enn (own_buf); | |
655 | else if (n > len) | |
0876f84a | 656 | *new_packet_len_p = write_qxfer_response (own_buf, data, len, 1); |
aa691b87 | 657 | else |
0876f84a DJ |
658 | *new_packet_len_p = write_qxfer_response (own_buf, data, n, 0); |
659 | ||
660 | free (data); | |
661 | ||
aa691b87 RM |
662 | return; |
663 | } | |
664 | ||
23181151 DJ |
665 | if (strncmp ("qXfer:features:read:", own_buf, 20) == 0) |
666 | { | |
667 | CORE_ADDR ofs; | |
668 | unsigned int len, total_len; | |
669 | const char *document; | |
670 | char *annex; | |
671 | ||
2d717e4f DJ |
672 | require_running (own_buf); |
673 | ||
fb1e4ffc DJ |
674 | /* Grab the annex, offset, and length. */ |
675 | if (decode_xfer_read (own_buf + 20, &annex, &ofs, &len) < 0) | |
676 | { | |
677 | strcpy (own_buf, "E00"); | |
678 | return; | |
679 | } | |
680 | ||
681 | /* Now grab the correct annex. */ | |
682 | document = get_features_xml (annex); | |
683 | if (document == NULL) | |
23181151 DJ |
684 | { |
685 | strcpy (own_buf, "E00"); | |
686 | return; | |
687 | } | |
688 | ||
689 | total_len = strlen (document); | |
690 | if (len > PBUFSIZ - 2) | |
691 | len = PBUFSIZ - 2; | |
692 | ||
693 | if (ofs > total_len) | |
694 | write_enn (own_buf); | |
695 | else if (len < total_len - ofs) | |
696 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
697 | len, 1); | |
698 | else | |
699 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
700 | total_len - ofs, 0); | |
701 | ||
702 | return; | |
703 | } | |
704 | ||
255e7678 DJ |
705 | if (strncmp ("qXfer:libraries:read:", own_buf, 21) == 0) |
706 | { | |
707 | CORE_ADDR ofs; | |
708 | unsigned int len, total_len; | |
709 | char *document, *p; | |
710 | struct inferior_list_entry *dll_ptr; | |
711 | char *annex; | |
712 | ||
2d717e4f DJ |
713 | require_running (own_buf); |
714 | ||
255e7678 DJ |
715 | /* Reject any annex; grab the offset and length. */ |
716 | if (decode_xfer_read (own_buf + 21, &annex, &ofs, &len) < 0 | |
717 | || annex[0] != '\0') | |
718 | { | |
719 | strcpy (own_buf, "E00"); | |
720 | return; | |
721 | } | |
722 | ||
723 | /* Over-estimate the necessary memory. Assume that every character | |
724 | in the library name must be escaped. */ | |
725 | total_len = 64; | |
726 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
727 | total_len += 128 + 6 * strlen (((struct dll_info *) dll_ptr)->name); | |
728 | ||
bca929d3 | 729 | document = xmalloc (total_len); |
255e7678 DJ |
730 | strcpy (document, "<library-list>\n"); |
731 | p = document + strlen (document); | |
732 | ||
733 | for (dll_ptr = all_dlls.head; dll_ptr != NULL; dll_ptr = dll_ptr->next) | |
734 | { | |
735 | struct dll_info *dll = (struct dll_info *) dll_ptr; | |
736 | char *name; | |
737 | ||
738 | strcpy (p, " <library name=\""); | |
739 | p = p + strlen (p); | |
740 | name = xml_escape_text (dll->name); | |
741 | strcpy (p, name); | |
742 | free (name); | |
743 | p = p + strlen (p); | |
744 | strcpy (p, "\"><segment address=\""); | |
745 | p = p + strlen (p); | |
746 | sprintf (p, "0x%lx", (long) dll->base_addr); | |
747 | p = p + strlen (p); | |
748 | strcpy (p, "\"/></library>\n"); | |
749 | p = p + strlen (p); | |
750 | } | |
751 | ||
752 | strcpy (p, "</library-list>\n"); | |
753 | ||
754 | total_len = strlen (document); | |
755 | if (len > PBUFSIZ - 2) | |
756 | len = PBUFSIZ - 2; | |
757 | ||
758 | if (ofs > total_len) | |
759 | write_enn (own_buf); | |
760 | else if (len < total_len - ofs) | |
761 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
762 | len, 1); | |
763 | else | |
764 | *new_packet_len_p = write_qxfer_response (own_buf, document + ofs, | |
765 | total_len - ofs, 0); | |
766 | ||
767 | free (document); | |
768 | return; | |
769 | } | |
770 | ||
07e059b5 VP |
771 | if (the_target->qxfer_osdata != NULL |
772 | && strncmp ("qXfer:osdata:read:", own_buf, 18) == 0) | |
773 | { | |
774 | char *annex; | |
775 | int n; | |
776 | unsigned int len; | |
777 | CORE_ADDR ofs; | |
778 | unsigned char *workbuf; | |
779 | ||
780 | strcpy (own_buf, "E00"); | |
781 | if (decode_xfer_read (own_buf + 18, &annex, &ofs, &len) < 0) | |
782 | return; | |
783 | if (len > PBUFSIZ - 2) | |
784 | len = PBUFSIZ - 2; | |
bca929d3 | 785 | workbuf = xmalloc (len + 1); |
07e059b5 VP |
786 | if (!workbuf) |
787 | return; | |
788 | ||
789 | n = (*the_target->qxfer_osdata) (annex, workbuf, NULL, ofs, len + 1); | |
790 | if (n < 0) | |
791 | write_enn (own_buf); | |
792 | else if (n > len) | |
793 | *new_packet_len_p = write_qxfer_response | |
794 | (own_buf, workbuf, len, 1); | |
795 | else | |
796 | *new_packet_len_p = write_qxfer_response | |
797 | (own_buf, workbuf, n, 0); | |
798 | ||
799 | free (workbuf); | |
800 | return; | |
801 | } | |
802 | ||
be2a5f71 DJ |
803 | /* Protocol features query. */ |
804 | if (strncmp ("qSupported", own_buf, 10) == 0 | |
805 | && (own_buf[10] == ':' || own_buf[10] == '\0')) | |
806 | { | |
89be2091 | 807 | sprintf (own_buf, "PacketSize=%x;QPassSignals+", PBUFSIZ - 1); |
0876f84a | 808 | |
255e7678 DJ |
809 | /* We do not have any hook to indicate whether the target backend |
810 | supports qXfer:libraries:read, so always report it. */ | |
811 | strcat (own_buf, ";qXfer:libraries:read+"); | |
812 | ||
0876f84a | 813 | if (the_target->read_auxv != NULL) |
9f2e1e63 | 814 | strcat (own_buf, ";qXfer:auxv:read+"); |
2d717e4f | 815 | |
0e7f50da UW |
816 | if (the_target->qxfer_spu != NULL) |
817 | strcat (own_buf, ";qXfer:spu:read+;qXfer:spu:write+"); | |
0876f84a | 818 | |
221c031f UW |
819 | /* We always report qXfer:features:read, as targets may |
820 | install XML files on a subsequent call to arch_setup. | |
821 | If we reported to GDB on startup that we don't support | |
822 | qXfer:feature:read at all, we will never be re-queried. */ | |
823 | strcat (own_buf, ";qXfer:features:read+"); | |
23181151 | 824 | |
a6f3e723 SL |
825 | if (transport_is_reliable) |
826 | strcat (own_buf, ";QStartNoAckMode+"); | |
07e059b5 VP |
827 | |
828 | if (the_target->qxfer_osdata != NULL) | |
829 | strcat (own_buf, ";qXfer:osdata:read+"); | |
830 | ||
be2a5f71 DJ |
831 | return; |
832 | } | |
833 | ||
dae5f5cf DJ |
834 | /* Thread-local storage support. */ |
835 | if (the_target->get_tls_address != NULL | |
836 | && strncmp ("qGetTLSAddr:", own_buf, 12) == 0) | |
837 | { | |
838 | char *p = own_buf + 12; | |
839 | CORE_ADDR parts[3], address = 0; | |
840 | int i, err; | |
841 | ||
2d717e4f DJ |
842 | require_running (own_buf); |
843 | ||
dae5f5cf DJ |
844 | for (i = 0; i < 3; i++) |
845 | { | |
846 | char *p2; | |
847 | int len; | |
848 | ||
849 | if (p == NULL) | |
850 | break; | |
851 | ||
852 | p2 = strchr (p, ','); | |
853 | if (p2) | |
854 | { | |
855 | len = p2 - p; | |
856 | p2++; | |
857 | } | |
858 | else | |
859 | { | |
860 | len = strlen (p); | |
861 | p2 = NULL; | |
862 | } | |
863 | ||
864 | decode_address (&parts[i], p, len); | |
865 | p = p2; | |
866 | } | |
867 | ||
868 | if (p != NULL || i < 3) | |
869 | err = 1; | |
870 | else | |
871 | { | |
872 | struct thread_info *thread = gdb_id_to_thread (parts[0]); | |
873 | ||
874 | if (thread == NULL) | |
875 | err = 2; | |
876 | else | |
877 | err = the_target->get_tls_address (thread, parts[1], parts[2], | |
878 | &address); | |
879 | } | |
880 | ||
881 | if (err == 0) | |
882 | { | |
883 | sprintf (own_buf, "%llx", address); | |
884 | return; | |
885 | } | |
886 | else if (err > 0) | |
887 | { | |
888 | write_enn (own_buf); | |
889 | return; | |
890 | } | |
891 | ||
892 | /* Otherwise, pretend we do not understand this packet. */ | |
893 | } | |
894 | ||
c74d0ad8 DJ |
895 | /* Handle "monitor" commands. */ |
896 | if (strncmp ("qRcmd,", own_buf, 6) == 0) | |
897 | { | |
bca929d3 | 898 | char *mon = xmalloc (PBUFSIZ); |
c74d0ad8 DJ |
899 | int len = strlen (own_buf + 6); |
900 | ||
d41b6bb4 | 901 | if ((len % 2) != 0 || unhexify (mon, own_buf + 6, len / 2) != len / 2) |
c74d0ad8 DJ |
902 | { |
903 | write_enn (own_buf); | |
904 | free (mon); | |
905 | return; | |
906 | } | |
907 | mon[len / 2] = '\0'; | |
908 | ||
909 | write_ok (own_buf); | |
910 | ||
911 | if (strcmp (mon, "set debug 1") == 0) | |
912 | { | |
913 | debug_threads = 1; | |
914 | monitor_output ("Debug output enabled.\n"); | |
915 | } | |
916 | else if (strcmp (mon, "set debug 0") == 0) | |
917 | { | |
918 | debug_threads = 0; | |
919 | monitor_output ("Debug output disabled.\n"); | |
920 | } | |
921 | else if (strcmp (mon, "set remote-debug 1") == 0) | |
922 | { | |
923 | remote_debug = 1; | |
924 | monitor_output ("Protocol debug output enabled.\n"); | |
925 | } | |
926 | else if (strcmp (mon, "set remote-debug 0") == 0) | |
927 | { | |
928 | remote_debug = 0; | |
929 | monitor_output ("Protocol debug output disabled.\n"); | |
930 | } | |
931 | else if (strcmp (mon, "help") == 0) | |
932 | monitor_show_help (); | |
2d717e4f DJ |
933 | else if (strcmp (mon, "exit") == 0) |
934 | exit_requested = 1; | |
c74d0ad8 DJ |
935 | else |
936 | { | |
937 | monitor_output ("Unknown monitor command.\n\n"); | |
938 | monitor_show_help (); | |
939 | write_enn (own_buf); | |
940 | } | |
941 | ||
942 | free (mon); | |
943 | return; | |
944 | } | |
945 | ||
08388c79 DE |
946 | if (strncmp ("qSearch:memory:", own_buf, sizeof ("qSearch:memory:") - 1) == 0) |
947 | { | |
948 | require_running (own_buf); | |
949 | handle_search_memory (own_buf, packet_len); | |
950 | return; | |
951 | } | |
952 | ||
ce3a066d DJ |
953 | /* Otherwise we didn't know what packet it was. Say we didn't |
954 | understand it. */ | |
955 | own_buf[0] = 0; | |
956 | } | |
957 | ||
64386c31 DJ |
958 | /* Parse vCont packets. */ |
959 | void | |
fc620387 | 960 | handle_v_cont (char *own_buf, char *status, int *signal) |
64386c31 DJ |
961 | { |
962 | char *p, *q; | |
963 | int n = 0, i = 0; | |
964 | struct thread_resume *resume_info, default_action; | |
965 | ||
966 | /* Count the number of semicolons in the packet. There should be one | |
967 | for every action. */ | |
968 | p = &own_buf[5]; | |
969 | while (p) | |
970 | { | |
971 | n++; | |
972 | p++; | |
973 | p = strchr (p, ';'); | |
974 | } | |
975 | /* Allocate room for one extra action, for the default remain-stopped | |
976 | behavior; if no default action is in the list, we'll need the extra | |
977 | slot. */ | |
bca929d3 | 978 | resume_info = xmalloc ((n + 1) * sizeof (resume_info[0])); |
64386c31 DJ |
979 | |
980 | default_action.thread = -1; | |
981 | default_action.leave_stopped = 1; | |
982 | default_action.step = 0; | |
983 | default_action.sig = 0; | |
984 | ||
985 | p = &own_buf[5]; | |
986 | i = 0; | |
987 | while (*p) | |
988 | { | |
989 | p++; | |
990 | ||
991 | resume_info[i].leave_stopped = 0; | |
992 | ||
993 | if (p[0] == 's' || p[0] == 'S') | |
994 | resume_info[i].step = 1; | |
995 | else if (p[0] == 'c' || p[0] == 'C') | |
996 | resume_info[i].step = 0; | |
997 | else | |
998 | goto err; | |
999 | ||
1000 | if (p[0] == 'S' || p[0] == 'C') | |
1001 | { | |
1002 | int sig; | |
1003 | sig = strtol (p + 1, &q, 16); | |
1004 | if (p == q) | |
1005 | goto err; | |
1006 | p = q; | |
1007 | ||
1008 | if (!target_signal_to_host_p (sig)) | |
1009 | goto err; | |
1010 | resume_info[i].sig = target_signal_to_host (sig); | |
1011 | } | |
1012 | else | |
1013 | { | |
1014 | resume_info[i].sig = 0; | |
1015 | p = p + 1; | |
1016 | } | |
1017 | ||
1018 | if (p[0] == 0) | |
1019 | { | |
1020 | resume_info[i].thread = -1; | |
1021 | default_action = resume_info[i]; | |
1022 | ||
1023 | /* Note: we don't increment i here, we'll overwrite this entry | |
1024 | the next time through. */ | |
1025 | } | |
1026 | else if (p[0] == ':') | |
1027 | { | |
a06660f7 DJ |
1028 | unsigned int gdb_id = strtoul (p + 1, &q, 16); |
1029 | unsigned long thread_id; | |
1030 | ||
64386c31 DJ |
1031 | if (p == q) |
1032 | goto err; | |
1033 | p = q; | |
1034 | if (p[0] != ';' && p[0] != 0) | |
1035 | goto err; | |
1036 | ||
a06660f7 DJ |
1037 | thread_id = gdb_id_to_thread_id (gdb_id); |
1038 | if (thread_id) | |
1039 | resume_info[i].thread = thread_id; | |
1040 | else | |
1041 | goto err; | |
1042 | ||
64386c31 DJ |
1043 | i++; |
1044 | } | |
1045 | } | |
1046 | ||
1047 | resume_info[i] = default_action; | |
1048 | ||
1049 | /* Still used in occasional places in the backend. */ | |
1050 | if (n == 1 && resume_info[0].thread != -1) | |
1051 | cont_thread = resume_info[0].thread; | |
1052 | else | |
1053 | cont_thread = -1; | |
dc3f8883 | 1054 | set_desired_inferior (0); |
64386c31 | 1055 | |
a20d5e98 | 1056 | enable_async_io (); |
64386c31 DJ |
1057 | (*the_target->resume) (resume_info); |
1058 | ||
1059 | free (resume_info); | |
1060 | ||
1061 | *signal = mywait (status, 1); | |
1062 | prepare_resume_reply (own_buf, *status, *signal); | |
a20d5e98 | 1063 | disable_async_io (); |
64386c31 DJ |
1064 | return; |
1065 | ||
1066 | err: | |
255e7678 | 1067 | write_enn (own_buf); |
64386c31 DJ |
1068 | free (resume_info); |
1069 | return; | |
1070 | } | |
1071 | ||
2d717e4f DJ |
1072 | /* Attach to a new program. Return 1 if successful, 0 if failure. */ |
1073 | int | |
1074 | handle_v_attach (char *own_buf, char *status, int *signal) | |
1075 | { | |
1076 | int pid; | |
1077 | ||
1078 | pid = strtol (own_buf + 8, NULL, 16); | |
1079 | if (pid != 0 && attach_inferior (pid, status, signal) == 0) | |
1080 | { | |
aeba519e PA |
1081 | /* Don't report shared library events after attaching, even if |
1082 | some libraries are preloaded. GDB will always poll the | |
1083 | library list. Avoids the "stopped by shared library event" | |
1084 | notice on the GDB side. */ | |
1085 | dlls_changed = 0; | |
2d717e4f DJ |
1086 | prepare_resume_reply (own_buf, *status, *signal); |
1087 | return 1; | |
1088 | } | |
1089 | else | |
1090 | { | |
1091 | write_enn (own_buf); | |
1092 | return 0; | |
1093 | } | |
1094 | } | |
1095 | ||
1096 | /* Run a new program. Return 1 if successful, 0 if failure. */ | |
1097 | static int | |
1098 | handle_v_run (char *own_buf, char *status, int *signal) | |
1099 | { | |
1100 | char *p, **pp, *next_p, **new_argv; | |
1101 | int i, new_argc; | |
1102 | ||
1103 | new_argc = 0; | |
1104 | for (p = own_buf + strlen ("vRun;"); p && *p; p = strchr (p, ';')) | |
1105 | { | |
1106 | p++; | |
1107 | new_argc++; | |
1108 | } | |
1109 | ||
bca929d3 | 1110 | new_argv = xcalloc (new_argc + 2, sizeof (char *)); |
2d717e4f DJ |
1111 | i = 0; |
1112 | for (p = own_buf + strlen ("vRun;"); *p; p = next_p) | |
1113 | { | |
1114 | next_p = strchr (p, ';'); | |
1115 | if (next_p == NULL) | |
1116 | next_p = p + strlen (p); | |
1117 | ||
1118 | if (i == 0 && p == next_p) | |
1119 | new_argv[i] = NULL; | |
1120 | else | |
1121 | { | |
bca929d3 | 1122 | new_argv[i] = xmalloc (1 + (next_p - p) / 2); |
2d717e4f DJ |
1123 | unhexify (new_argv[i], p, (next_p - p) / 2); |
1124 | new_argv[i][(next_p - p) / 2] = '\0'; | |
1125 | } | |
1126 | ||
1127 | if (*next_p) | |
1128 | next_p++; | |
1129 | i++; | |
1130 | } | |
1131 | new_argv[i] = NULL; | |
1132 | ||
1133 | if (new_argv[0] == NULL) | |
1134 | { | |
f142445f DJ |
1135 | /* GDB didn't specify a program to run. Use the program from the |
1136 | last run with the new argument list. */ | |
9b710a42 | 1137 | |
2d717e4f DJ |
1138 | if (program_argv == NULL) |
1139 | { | |
1140 | write_enn (own_buf); | |
1141 | return 0; | |
1142 | } | |
1143 | ||
bca929d3 | 1144 | new_argv[0] = xstrdup (program_argv[0]); |
2d717e4f | 1145 | } |
f142445f DJ |
1146 | |
1147 | /* Free the old argv. */ | |
1148 | if (program_argv) | |
2d717e4f | 1149 | { |
f142445f DJ |
1150 | for (pp = program_argv; *pp != NULL; pp++) |
1151 | free (*pp); | |
1152 | free (program_argv); | |
2d717e4f | 1153 | } |
f142445f | 1154 | program_argv = new_argv; |
2d717e4f DJ |
1155 | |
1156 | *signal = start_inferior (program_argv, status); | |
1157 | if (*status == 'T') | |
1158 | { | |
1159 | prepare_resume_reply (own_buf, *status, *signal); | |
1160 | return 1; | |
1161 | } | |
1162 | else | |
1163 | { | |
1164 | write_enn (own_buf); | |
1165 | return 0; | |
1166 | } | |
1167 | } | |
1168 | ||
64386c31 DJ |
1169 | /* Handle all of the extended 'v' packets. */ |
1170 | void | |
a6b151f1 DJ |
1171 | handle_v_requests (char *own_buf, char *status, int *signal, |
1172 | int packet_len, int *new_packet_len) | |
64386c31 | 1173 | { |
db42f210 | 1174 | if (!disable_packet_vCont) |
64386c31 | 1175 | { |
db42f210 PA |
1176 | if (strncmp (own_buf, "vCont;", 6) == 0) |
1177 | { | |
1178 | require_running (own_buf); | |
1179 | handle_v_cont (own_buf, status, signal); | |
1180 | return; | |
1181 | } | |
64386c31 | 1182 | |
db42f210 PA |
1183 | if (strncmp (own_buf, "vCont?", 6) == 0) |
1184 | { | |
1185 | strcpy (own_buf, "vCont;c;C;s;S"); | |
1186 | return; | |
1187 | } | |
64386c31 DJ |
1188 | } |
1189 | ||
a6b151f1 DJ |
1190 | if (strncmp (own_buf, "vFile:", 6) == 0 |
1191 | && handle_vFile (own_buf, packet_len, new_packet_len)) | |
1192 | return; | |
1193 | ||
2d717e4f DJ |
1194 | if (strncmp (own_buf, "vAttach;", 8) == 0) |
1195 | { | |
1196 | if (target_running ()) | |
1197 | { | |
fd96d250 PA |
1198 | fprintf (stderr, "Already debugging a process\n"); |
1199 | write_enn (own_buf); | |
1200 | return; | |
2d717e4f DJ |
1201 | } |
1202 | handle_v_attach (own_buf, status, signal); | |
1203 | return; | |
1204 | } | |
1205 | ||
1206 | if (strncmp (own_buf, "vRun;", 5) == 0) | |
1207 | { | |
1208 | if (target_running ()) | |
1209 | { | |
fd96d250 PA |
1210 | fprintf (stderr, "Already debugging a process\n"); |
1211 | write_enn (own_buf); | |
1212 | return; | |
2d717e4f DJ |
1213 | } |
1214 | handle_v_run (own_buf, status, signal); | |
1215 | return; | |
1216 | } | |
1217 | ||
64386c31 DJ |
1218 | /* Otherwise we didn't know what packet it was. Say we didn't |
1219 | understand it. */ | |
1220 | own_buf[0] = 0; | |
1221 | return; | |
1222 | } | |
1223 | ||
1224 | void | |
27524b67 | 1225 | myresume (char *own_buf, int step, int *signalp, char *statusp) |
64386c31 DJ |
1226 | { |
1227 | struct thread_resume resume_info[2]; | |
1228 | int n = 0; | |
a20d5e98 DJ |
1229 | int sig = *signalp; |
1230 | ||
1231 | set_desired_inferior (0); | |
64386c31 | 1232 | |
d592fa2f | 1233 | if (step || sig || (cont_thread != 0 && cont_thread != -1)) |
64386c31 DJ |
1234 | { |
1235 | resume_info[0].thread | |
1236 | = ((struct inferior_list_entry *) current_inferior)->id; | |
1237 | resume_info[0].step = step; | |
1238 | resume_info[0].sig = sig; | |
1239 | resume_info[0].leave_stopped = 0; | |
1240 | n++; | |
1241 | } | |
1242 | resume_info[n].thread = -1; | |
1243 | resume_info[n].step = 0; | |
1244 | resume_info[n].sig = 0; | |
d592fa2f | 1245 | resume_info[n].leave_stopped = (cont_thread != 0 && cont_thread != -1); |
64386c31 | 1246 | |
a20d5e98 | 1247 | enable_async_io (); |
64386c31 | 1248 | (*the_target->resume) (resume_info); |
a20d5e98 DJ |
1249 | *signalp = mywait (statusp, 1); |
1250 | prepare_resume_reply (own_buf, *statusp, *signalp); | |
1251 | disable_async_io (); | |
64386c31 DJ |
1252 | } |
1253 | ||
dd24457d DJ |
1254 | static void |
1255 | gdbserver_version (void) | |
1256 | { | |
c16158bc | 1257 | printf ("GNU gdbserver %s%s\n" |
ff703abe | 1258 | "Copyright (C) 2009 Free Software Foundation, Inc.\n" |
dd24457d DJ |
1259 | "gdbserver is free software, covered by the GNU General Public License.\n" |
1260 | "This gdbserver was configured as \"%s\"\n", | |
c16158bc | 1261 | PKGVERSION, version, host_name); |
dd24457d DJ |
1262 | } |
1263 | ||
0bc68c49 | 1264 | static void |
c16158bc | 1265 | gdbserver_usage (FILE *stream) |
0bc68c49 | 1266 | { |
c16158bc JM |
1267 | fprintf (stream, "Usage:\tgdbserver [OPTIONS] COMM PROG [ARGS ...]\n" |
1268 | "\tgdbserver [OPTIONS] --attach COMM PID\n" | |
1269 | "\tgdbserver [OPTIONS] --multi COMM\n" | |
1270 | "\n" | |
1271 | "COMM may either be a tty device (for serial debugging), or \n" | |
1272 | "HOST:PORT to listen for a TCP connection.\n" | |
1273 | "\n" | |
1274 | "Options:\n" | |
1275 | " --debug\t\tEnable debugging output.\n" | |
8e4c5421 | 1276 | " --version\t\tDisplay version information and exit.\n" |
c16158bc JM |
1277 | " --wrapper WRAPPER --\tRun WRAPPER to start new programs.\n"); |
1278 | if (REPORT_BUGS_TO[0] && stream == stdout) | |
1279 | fprintf (stream, "Report bugs to \"%s\".\n", REPORT_BUGS_TO); | |
0bc68c49 DJ |
1280 | } |
1281 | ||
db42f210 PA |
1282 | static void |
1283 | gdbserver_show_disableable (FILE *stream) | |
1284 | { | |
1285 | fprintf (stream, "Disableable packets:\n" | |
1286 | " vCont \tAll vCont packets\n" | |
1287 | " qC \tQuerying the current thread\n" | |
1288 | " qfThreadInfo\tThread listing\n" | |
1289 | " Tthread \tPassing the thread specifier in the T stop reply packet\n" | |
1290 | " threads \tAll of the above\n"); | |
1291 | } | |
1292 | ||
1293 | ||
2d717e4f DJ |
1294 | #undef require_running |
1295 | #define require_running(BUF) \ | |
1296 | if (!target_running ()) \ | |
1297 | { \ | |
1298 | write_enn (BUF); \ | |
1299 | break; \ | |
1300 | } | |
1301 | ||
c906108c | 1302 | int |
da85418c | 1303 | main (int argc, char *argv[]) |
c906108c | 1304 | { |
f450004a | 1305 | char ch, status, *own_buf; |
7fb85e41 | 1306 | unsigned char *mem_buf; |
c906108c | 1307 | int i = 0; |
fc620387 | 1308 | int signal; |
c906108c SS |
1309 | unsigned int len; |
1310 | CORE_ADDR mem_addr; | |
0729219d DJ |
1311 | int bad_attach; |
1312 | int pid; | |
2d717e4f DJ |
1313 | char *arg_end, *port; |
1314 | char **next_arg = &argv[1]; | |
1315 | int multi_mode = 0; | |
1316 | int attach = 0; | |
1317 | int was_running; | |
c906108c | 1318 | |
2d717e4f | 1319 | while (*next_arg != NULL && **next_arg == '-') |
dd24457d | 1320 | { |
2d717e4f DJ |
1321 | if (strcmp (*next_arg, "--version") == 0) |
1322 | { | |
1323 | gdbserver_version (); | |
1324 | exit (0); | |
1325 | } | |
1326 | else if (strcmp (*next_arg, "--help") == 0) | |
1327 | { | |
c16158bc | 1328 | gdbserver_usage (stdout); |
2d717e4f DJ |
1329 | exit (0); |
1330 | } | |
1331 | else if (strcmp (*next_arg, "--attach") == 0) | |
1332 | attach = 1; | |
1333 | else if (strcmp (*next_arg, "--multi") == 0) | |
1334 | multi_mode = 1; | |
ccd213ac DJ |
1335 | else if (strcmp (*next_arg, "--wrapper") == 0) |
1336 | { | |
1337 | next_arg++; | |
1338 | ||
1339 | wrapper_argv = next_arg; | |
1340 | while (*next_arg != NULL && strcmp (*next_arg, "--") != 0) | |
1341 | next_arg++; | |
1342 | ||
1343 | if (next_arg == wrapper_argv || *next_arg == NULL) | |
1344 | { | |
c16158bc | 1345 | gdbserver_usage (stderr); |
ccd213ac DJ |
1346 | exit (1); |
1347 | } | |
1348 | ||
1349 | /* Consume the "--". */ | |
1350 | *next_arg = NULL; | |
1351 | } | |
2d717e4f DJ |
1352 | else if (strcmp (*next_arg, "--debug") == 0) |
1353 | debug_threads = 1; | |
db42f210 PA |
1354 | else if (strcmp (*next_arg, "--disable-packet") == 0) |
1355 | { | |
1356 | gdbserver_show_disableable (stdout); | |
1357 | exit (0); | |
1358 | } | |
1359 | else if (strncmp (*next_arg, | |
1360 | "--disable-packet=", | |
1361 | sizeof ("--disable-packet=") - 1) == 0) | |
1362 | { | |
1363 | char *packets, *tok; | |
1364 | ||
1365 | packets = *next_arg += sizeof ("--disable-packet=") - 1; | |
1366 | for (tok = strtok (packets, ","); | |
1367 | tok != NULL; | |
1368 | tok = strtok (NULL, ",")) | |
1369 | { | |
1370 | if (strcmp ("vCont", tok) == 0) | |
1371 | disable_packet_vCont = 1; | |
1372 | else if (strcmp ("Tthread", tok) == 0) | |
1373 | disable_packet_Tthread = 1; | |
1374 | else if (strcmp ("qC", tok) == 0) | |
1375 | disable_packet_qC = 1; | |
1376 | else if (strcmp ("qfThreadInfo", tok) == 0) | |
1377 | disable_packet_qfThreadInfo = 1; | |
1378 | else if (strcmp ("threads", tok) == 0) | |
1379 | { | |
1380 | disable_packet_vCont = 1; | |
1381 | disable_packet_Tthread = 1; | |
1382 | disable_packet_qC = 1; | |
1383 | disable_packet_qfThreadInfo = 1; | |
1384 | } | |
1385 | else | |
1386 | { | |
1387 | fprintf (stderr, "Don't know how to disable \"%s\".\n\n", | |
1388 | tok); | |
1389 | gdbserver_show_disableable (stderr); | |
1390 | exit (1); | |
1391 | } | |
1392 | } | |
1393 | } | |
2d717e4f DJ |
1394 | else |
1395 | { | |
1396 | fprintf (stderr, "Unknown argument: %s\n", *next_arg); | |
1397 | exit (1); | |
1398 | } | |
dd24457d | 1399 | |
2d717e4f DJ |
1400 | next_arg++; |
1401 | continue; | |
dd24457d DJ |
1402 | } |
1403 | ||
c5aa993b | 1404 | if (setjmp (toplevel)) |
c906108c | 1405 | { |
c5aa993b JM |
1406 | fprintf (stderr, "Exiting\n"); |
1407 | exit (1); | |
c906108c SS |
1408 | } |
1409 | ||
2d717e4f DJ |
1410 | port = *next_arg; |
1411 | next_arg++; | |
1412 | if (port == NULL || (!attach && !multi_mode && *next_arg == NULL)) | |
1413 | { | |
c16158bc | 1414 | gdbserver_usage (stderr); |
2d717e4f DJ |
1415 | exit (1); |
1416 | } | |
1417 | ||
0729219d DJ |
1418 | bad_attach = 0; |
1419 | pid = 0; | |
2d717e4f DJ |
1420 | |
1421 | /* --attach used to come after PORT, so allow it there for | |
1422 | compatibility. */ | |
1423 | if (*next_arg != NULL && strcmp (*next_arg, "--attach") == 0) | |
45b7b345 | 1424 | { |
2d717e4f DJ |
1425 | attach = 1; |
1426 | next_arg++; | |
45b7b345 DJ |
1427 | } |
1428 | ||
2d717e4f DJ |
1429 | if (attach |
1430 | && (*next_arg == NULL | |
1431 | || (*next_arg)[0] == '\0' | |
1432 | || (pid = strtoul (*next_arg, &arg_end, 0)) == 0 | |
1433 | || *arg_end != '\0' | |
1434 | || next_arg[1] != NULL)) | |
1435 | bad_attach = 1; | |
1436 | ||
1437 | if (bad_attach) | |
dd24457d | 1438 | { |
c16158bc | 1439 | gdbserver_usage (stderr); |
dd24457d DJ |
1440 | exit (1); |
1441 | } | |
c906108c | 1442 | |
a20d5e98 | 1443 | initialize_async_io (); |
4ce44c66 JM |
1444 | initialize_low (); |
1445 | ||
bca929d3 DE |
1446 | own_buf = xmalloc (PBUFSIZ + 1); |
1447 | mem_buf = xmalloc (PBUFSIZ); | |
0a30fbc4 | 1448 | |
2d717e4f | 1449 | if (pid == 0 && *next_arg != NULL) |
45b7b345 | 1450 | { |
2d717e4f DJ |
1451 | int i, n; |
1452 | ||
1453 | n = argc - (next_arg - argv); | |
bca929d3 | 1454 | program_argv = xmalloc (sizeof (char *) * (n + 1)); |
2d717e4f | 1455 | for (i = 0; i < n; i++) |
bca929d3 | 1456 | program_argv[i] = xstrdup (next_arg[i]); |
2d717e4f DJ |
1457 | program_argv[i] = NULL; |
1458 | ||
45b7b345 | 1459 | /* Wait till we are at first instruction in program. */ |
2d717e4f | 1460 | signal = start_inferior (program_argv, &status); |
c906108c | 1461 | |
c588c53c MS |
1462 | /* We are now (hopefully) stopped at the first instruction of |
1463 | the target process. This assumes that the target process was | |
1464 | successfully created. */ | |
45b7b345 | 1465 | } |
2d717e4f DJ |
1466 | else if (pid != 0) |
1467 | { | |
1468 | if (attach_inferior (pid, &status, &signal) == -1) | |
1469 | error ("Attaching not supported on this target"); | |
1470 | ||
1471 | /* Otherwise succeeded. */ | |
1472 | } | |
45b7b345 DJ |
1473 | else |
1474 | { | |
2d717e4f DJ |
1475 | status = 'W'; |
1476 | signal = 0; | |
45b7b345 | 1477 | } |
c906108c | 1478 | |
311de423 PA |
1479 | /* Don't report shared library events on the initial connection, |
1480 | even if some libraries are preloaded. Avoids the "stopped by | |
1481 | shared library event" notice on gdb side. */ | |
1482 | dlls_changed = 0; | |
1483 | ||
8264bb58 DJ |
1484 | if (setjmp (toplevel)) |
1485 | { | |
1486 | fprintf (stderr, "Killing inferior\n"); | |
1487 | kill_inferior (); | |
1488 | exit (1); | |
1489 | } | |
1490 | ||
c588c53c | 1491 | if (status == 'W' || status == 'X') |
2d717e4f DJ |
1492 | was_running = 0; |
1493 | else | |
1494 | was_running = 1; | |
1495 | ||
1496 | if (!was_running && !multi_mode) | |
c588c53c | 1497 | { |
2d717e4f | 1498 | fprintf (stderr, "No program to debug. GDBserver exiting.\n"); |
c588c53c MS |
1499 | exit (1); |
1500 | } | |
1501 | ||
c906108c SS |
1502 | while (1) |
1503 | { | |
a6f3e723 | 1504 | noack_mode = 0; |
2d717e4f | 1505 | remote_open (port); |
c906108c | 1506 | |
c5aa993b | 1507 | restart: |
2d717e4f DJ |
1508 | if (setjmp (toplevel) != 0) |
1509 | { | |
1510 | /* An error occurred. */ | |
1511 | if (response_needed) | |
1512 | { | |
1513 | write_enn (own_buf); | |
1514 | putpkt (own_buf); | |
1515 | } | |
1516 | } | |
1517 | ||
a20d5e98 | 1518 | disable_async_io (); |
2d717e4f | 1519 | while (!exit_requested) |
c906108c SS |
1520 | { |
1521 | unsigned char sig; | |
01f9e8fa DJ |
1522 | int packet_len; |
1523 | int new_packet_len = -1; | |
1524 | ||
2d717e4f | 1525 | response_needed = 0; |
01f9e8fa DJ |
1526 | packet_len = getpkt (own_buf); |
1527 | if (packet_len <= 0) | |
1528 | break; | |
2d717e4f | 1529 | response_needed = 1; |
01f9e8fa | 1530 | |
c906108c SS |
1531 | i = 0; |
1532 | ch = own_buf[i++]; | |
1533 | switch (ch) | |
1534 | { | |
ce3a066d | 1535 | case 'q': |
0e7f50da | 1536 | handle_query (own_buf, packet_len, &new_packet_len); |
ce3a066d | 1537 | break; |
89be2091 DJ |
1538 | case 'Q': |
1539 | handle_general_set (own_buf); | |
1540 | break; | |
6ad8ae5c | 1541 | case 'D': |
2d717e4f | 1542 | require_running (own_buf); |
6ad8ae5c | 1543 | fprintf (stderr, "Detaching from inferior\n"); |
444d6139 | 1544 | if (detach_inferior () != 0) |
2d717e4f | 1545 | write_enn (own_buf); |
444d6139 PA |
1546 | else |
1547 | { | |
1548 | write_ok (own_buf); | |
6ad8ae5c | 1549 | |
2d717e4f DJ |
1550 | if (extended_protocol) |
1551 | { | |
1552 | /* Treat this like a normal program exit. */ | |
1553 | signal = 0; | |
1554 | status = 'W'; | |
1555 | } | |
1556 | else | |
1557 | { | |
1558 | putpkt (own_buf); | |
1559 | remote_close (); | |
6ad8ae5c | 1560 | |
2d717e4f DJ |
1561 | /* If we are attached, then we can exit. Otherwise, we |
1562 | need to hang around doing nothing, until the child | |
1563 | is gone. */ | |
1564 | if (!attached) | |
1565 | join_inferior (); | |
1566 | ||
1567 | exit (0); | |
1568 | } | |
444d6139 | 1569 | } |
2d717e4f | 1570 | break; |
c906108c | 1571 | case '!': |
2d717e4f DJ |
1572 | extended_protocol = 1; |
1573 | write_ok (own_buf); | |
c906108c SS |
1574 | break; |
1575 | case '?': | |
1576 | prepare_resume_reply (own_buf, status, signal); | |
1577 | break; | |
1578 | case 'H': | |
a06660f7 | 1579 | if (own_buf[1] == 'c' || own_buf[1] == 'g' || own_buf[1] == 's') |
c906108c | 1580 | { |
a06660f7 DJ |
1581 | unsigned long gdb_id, thread_id; |
1582 | ||
2d717e4f | 1583 | require_running (own_buf); |
a06660f7 | 1584 | gdb_id = strtoul (&own_buf[2], NULL, 16); |
2d717e4f DJ |
1585 | if (gdb_id == 0 || gdb_id == -1) |
1586 | thread_id = gdb_id; | |
1587 | else | |
a06660f7 | 1588 | { |
2d717e4f DJ |
1589 | thread_id = gdb_id_to_thread_id (gdb_id); |
1590 | if (thread_id == 0) | |
1591 | { | |
1592 | write_enn (own_buf); | |
1593 | break; | |
1594 | } | |
a06660f7 DJ |
1595 | } |
1596 | ||
1597 | if (own_buf[1] == 'g') | |
1598 | { | |
1599 | general_thread = thread_id; | |
1600 | set_desired_inferior (1); | |
1601 | } | |
1602 | else if (own_buf[1] == 'c') | |
1603 | cont_thread = thread_id; | |
1604 | else if (own_buf[1] == 's') | |
1605 | step_thread = thread_id; | |
1606 | ||
0d62e5e8 | 1607 | write_ok (own_buf); |
a06660f7 DJ |
1608 | } |
1609 | else | |
1610 | { | |
c906108c SS |
1611 | /* Silently ignore it so that gdb can extend the protocol |
1612 | without compatibility headaches. */ | |
1613 | own_buf[0] = '\0'; | |
c906108c SS |
1614 | } |
1615 | break; | |
1616 | case 'g': | |
2d717e4f | 1617 | require_running (own_buf); |
0d62e5e8 | 1618 | set_desired_inferior (1); |
0a30fbc4 | 1619 | registers_to_string (own_buf); |
c906108c SS |
1620 | break; |
1621 | case 'G': | |
2d717e4f | 1622 | require_running (own_buf); |
0d62e5e8 | 1623 | set_desired_inferior (1); |
0a30fbc4 | 1624 | registers_from_string (&own_buf[1]); |
c906108c SS |
1625 | write_ok (own_buf); |
1626 | break; | |
1627 | case 'm': | |
2d717e4f | 1628 | require_running (own_buf); |
c906108c | 1629 | decode_m_packet (&own_buf[1], &mem_addr, &len); |
c3e735a6 DJ |
1630 | if (read_inferior_memory (mem_addr, mem_buf, len) == 0) |
1631 | convert_int_to_ascii (mem_buf, own_buf, len); | |
1632 | else | |
1633 | write_enn (own_buf); | |
c906108c SS |
1634 | break; |
1635 | case 'M': | |
2d717e4f | 1636 | require_running (own_buf); |
c906108c SS |
1637 | decode_M_packet (&own_buf[1], &mem_addr, &len, mem_buf); |
1638 | if (write_inferior_memory (mem_addr, mem_buf, len) == 0) | |
1639 | write_ok (own_buf); | |
1640 | else | |
1641 | write_enn (own_buf); | |
1642 | break; | |
01f9e8fa | 1643 | case 'X': |
2d717e4f | 1644 | require_running (own_buf); |
01f9e8fa DJ |
1645 | if (decode_X_packet (&own_buf[1], packet_len - 1, |
1646 | &mem_addr, &len, mem_buf) < 0 | |
1647 | || write_inferior_memory (mem_addr, mem_buf, len) != 0) | |
1648 | write_enn (own_buf); | |
1649 | else | |
1650 | write_ok (own_buf); | |
1651 | break; | |
c906108c | 1652 | case 'C': |
2d717e4f | 1653 | require_running (own_buf); |
c906108c | 1654 | convert_ascii_to_int (own_buf + 1, &sig, 1); |
0e98d0a7 DJ |
1655 | if (target_signal_to_host_p (sig)) |
1656 | signal = target_signal_to_host (sig); | |
1657 | else | |
1658 | signal = 0; | |
27524b67 | 1659 | myresume (own_buf, 0, &signal, &status); |
c906108c SS |
1660 | break; |
1661 | case 'S': | |
2d717e4f | 1662 | require_running (own_buf); |
c906108c | 1663 | convert_ascii_to_int (own_buf + 1, &sig, 1); |
0e98d0a7 DJ |
1664 | if (target_signal_to_host_p (sig)) |
1665 | signal = target_signal_to_host (sig); | |
1666 | else | |
1667 | signal = 0; | |
27524b67 | 1668 | myresume (own_buf, 1, &signal, &status); |
c906108c SS |
1669 | break; |
1670 | case 'c': | |
2d717e4f | 1671 | require_running (own_buf); |
a20d5e98 | 1672 | signal = 0; |
27524b67 | 1673 | myresume (own_buf, 0, &signal, &status); |
c906108c SS |
1674 | break; |
1675 | case 's': | |
2d717e4f | 1676 | require_running (own_buf); |
a20d5e98 | 1677 | signal = 0; |
27524b67 | 1678 | myresume (own_buf, 1, &signal, &status); |
c906108c | 1679 | break; |
e013ee27 OF |
1680 | case 'Z': |
1681 | { | |
1682 | char *lenptr; | |
1683 | char *dataptr; | |
1684 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1685 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1686 | char type = own_buf[1]; | |
1687 | ||
1688 | if (the_target->insert_watchpoint == NULL | |
1689 | || (type < '2' || type > '4')) | |
1690 | { | |
1691 | /* No watchpoint support or not a watchpoint command; | |
1692 | unrecognized either way. */ | |
1693 | own_buf[0] = '\0'; | |
1694 | } | |
1695 | else | |
1696 | { | |
1697 | int res; | |
1698 | ||
2d717e4f | 1699 | require_running (own_buf); |
e013ee27 OF |
1700 | res = (*the_target->insert_watchpoint) (type, addr, len); |
1701 | if (res == 0) | |
1702 | write_ok (own_buf); | |
1703 | else if (res == 1) | |
1704 | /* Unsupported. */ | |
1705 | own_buf[0] = '\0'; | |
1706 | else | |
1707 | write_enn (own_buf); | |
1708 | } | |
1709 | break; | |
1710 | } | |
1711 | case 'z': | |
1712 | { | |
1713 | char *lenptr; | |
1714 | char *dataptr; | |
1715 | CORE_ADDR addr = strtoul (&own_buf[3], &lenptr, 16); | |
1716 | int len = strtol (lenptr + 1, &dataptr, 16); | |
1717 | char type = own_buf[1]; | |
1718 | ||
1719 | if (the_target->remove_watchpoint == NULL | |
1720 | || (type < '2' || type > '4')) | |
1721 | { | |
1722 | /* No watchpoint support or not a watchpoint command; | |
1723 | unrecognized either way. */ | |
1724 | own_buf[0] = '\0'; | |
1725 | } | |
1726 | else | |
1727 | { | |
1728 | int res; | |
1729 | ||
2d717e4f | 1730 | require_running (own_buf); |
e013ee27 OF |
1731 | res = (*the_target->remove_watchpoint) (type, addr, len); |
1732 | if (res == 0) | |
1733 | write_ok (own_buf); | |
1734 | else if (res == 1) | |
1735 | /* Unsupported. */ | |
1736 | own_buf[0] = '\0'; | |
1737 | else | |
1738 | write_enn (own_buf); | |
1739 | } | |
1740 | break; | |
1741 | } | |
c906108c | 1742 | case 'k': |
2d717e4f DJ |
1743 | response_needed = 0; |
1744 | if (!target_running ()) | |
1745 | /* The packet we received doesn't make sense - but we | |
1746 | can't reply to it, either. */ | |
1747 | goto restart; | |
1748 | ||
c906108c SS |
1749 | fprintf (stderr, "Killing inferior\n"); |
1750 | kill_inferior (); | |
2d717e4f DJ |
1751 | |
1752 | /* When using the extended protocol, we wait with no | |
1753 | program running. The traditional protocol will exit | |
1754 | instead. */ | |
c906108c SS |
1755 | if (extended_protocol) |
1756 | { | |
2d717e4f DJ |
1757 | status = 'X'; |
1758 | signal = TARGET_SIGNAL_KILL; | |
1759 | was_running = 0; | |
c906108c | 1760 | goto restart; |
c906108c SS |
1761 | } |
1762 | else | |
1763 | { | |
1764 | exit (0); | |
1765 | break; | |
1766 | } | |
1767 | case 'T': | |
a06660f7 DJ |
1768 | { |
1769 | unsigned long gdb_id, thread_id; | |
1770 | ||
2d717e4f | 1771 | require_running (own_buf); |
a06660f7 DJ |
1772 | gdb_id = strtoul (&own_buf[1], NULL, 16); |
1773 | thread_id = gdb_id_to_thread_id (gdb_id); | |
1774 | if (thread_id == 0) | |
1775 | { | |
1776 | write_enn (own_buf); | |
1777 | break; | |
1778 | } | |
1779 | ||
1780 | if (mythread_alive (thread_id)) | |
1781 | write_ok (own_buf); | |
1782 | else | |
1783 | write_enn (own_buf); | |
1784 | } | |
c906108c SS |
1785 | break; |
1786 | case 'R': | |
2d717e4f DJ |
1787 | response_needed = 0; |
1788 | ||
c906108c | 1789 | /* Restarting the inferior is only supported in the |
c5aa993b | 1790 | extended protocol. */ |
c906108c SS |
1791 | if (extended_protocol) |
1792 | { | |
2d717e4f DJ |
1793 | if (target_running ()) |
1794 | kill_inferior (); | |
c906108c SS |
1795 | fprintf (stderr, "GDBserver restarting\n"); |
1796 | ||
1797 | /* Wait till we are at 1st instruction in prog. */ | |
2d717e4f DJ |
1798 | if (program_argv != NULL) |
1799 | signal = start_inferior (program_argv, &status); | |
1800 | else | |
1801 | { | |
1802 | status = 'X'; | |
1803 | signal = TARGET_SIGNAL_KILL; | |
1804 | } | |
c906108c | 1805 | goto restart; |
c906108c SS |
1806 | } |
1807 | else | |
1808 | { | |
1809 | /* It is a request we don't understand. Respond with an | |
1810 | empty packet so that gdb knows that we don't support this | |
1811 | request. */ | |
1812 | own_buf[0] = '\0'; | |
1813 | break; | |
1814 | } | |
64386c31 DJ |
1815 | case 'v': |
1816 | /* Extended (long) request. */ | |
a6b151f1 DJ |
1817 | handle_v_requests (own_buf, &status, &signal, |
1818 | packet_len, &new_packet_len); | |
64386c31 | 1819 | break; |
a6b151f1 | 1820 | |
c906108c SS |
1821 | default: |
1822 | /* It is a request we don't understand. Respond with an | |
c5aa993b JM |
1823 | empty packet so that gdb knows that we don't support this |
1824 | request. */ | |
c906108c SS |
1825 | own_buf[0] = '\0'; |
1826 | break; | |
1827 | } | |
1828 | ||
01f9e8fa DJ |
1829 | if (new_packet_len != -1) |
1830 | putpkt_binary (own_buf, new_packet_len); | |
1831 | else | |
1832 | putpkt (own_buf); | |
c906108c | 1833 | |
2d717e4f DJ |
1834 | response_needed = 0; |
1835 | ||
1836 | if (was_running && (status == 'W' || status == 'X')) | |
c906108c | 1837 | { |
2d717e4f | 1838 | was_running = 0; |
c906108c | 1839 | |
2d717e4f DJ |
1840 | if (status == 'W') |
1841 | fprintf (stderr, | |
1842 | "\nChild exited with status %d\n", signal); | |
1843 | if (status == 'X') | |
1844 | fprintf (stderr, "\nChild terminated with signal = 0x%x (%s)\n", | |
1845 | target_signal_to_host (signal), | |
1846 | target_signal_to_name (signal)); | |
1847 | ||
1848 | if (extended_protocol) | |
1849 | goto restart; | |
c906108c SS |
1850 | else |
1851 | { | |
1852 | fprintf (stderr, "GDBserver exiting\n"); | |
1853 | exit (0); | |
1854 | } | |
1855 | } | |
c906108c | 1856 | |
2d717e4f DJ |
1857 | if (status != 'W' && status != 'X') |
1858 | was_running = 1; | |
1859 | } | |
c906108c | 1860 | |
2d717e4f DJ |
1861 | /* If an exit was requested (using the "monitor exit" command), |
1862 | terminate now. The only other way to get here is for | |
1863 | getpkt to fail; close the connection and reopen it at the | |
1864 | top of the loop. */ | |
c906108c | 1865 | |
2d717e4f | 1866 | if (exit_requested) |
c906108c SS |
1867 | { |
1868 | remote_close (); | |
2d717e4f DJ |
1869 | if (attached && target_running ()) |
1870 | detach_inferior (); | |
1871 | else if (target_running ()) | |
1872 | kill_inferior (); | |
c906108c SS |
1873 | exit (0); |
1874 | } | |
1875 | else | |
1876 | { | |
45b7b345 DJ |
1877 | fprintf (stderr, "Remote side has terminated connection. " |
1878 | "GDBserver will reopen the connection.\n"); | |
c906108c SS |
1879 | remote_close (); |
1880 | } | |
1881 | } | |
1882 | } |