Commit | Line | Data |
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c906108c | 1 | /* Remote utility routines for the remote server for GDB. |
e2882c85 | 2 | Copyright (C) 1986-2018 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 8 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 9 | (at your option) any later version. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b | 16 | You should have received a copy of the GNU General Public License |
a9762ec7 | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
18 | |
19 | #include "server.h" | |
726e1356 PA |
20 | #if HAVE_TERMIOS_H |
21 | #include <termios.h> | |
22 | #endif | |
5b1c542e | 23 | #include "target.h" |
623b6bdf | 24 | #include "gdbthread.h" |
3aee8918 | 25 | #include "tdesc.h" |
799cdc37 | 26 | #include "dll.h" |
9c3d6531 | 27 | #include "rsp-low.h" |
75352e28 | 28 | #include "gdbthread.h" |
fafcc06a | 29 | #include <ctype.h> |
b80864fb | 30 | #if HAVE_SYS_IOCTL_H |
c906108c | 31 | #include <sys/ioctl.h> |
b80864fb | 32 | #endif |
68070c10 | 33 | #if HAVE_SYS_FILE_H |
c906108c | 34 | #include <sys/file.h> |
68070c10 | 35 | #endif |
9eb1356e PA |
36 | #if HAVE_NETINET_IN_H |
37 | #include <netinet/in.h> | |
38 | #endif | |
39 | #if HAVE_SYS_SOCKET_H | |
40 | #include <sys/socket.h> | |
41 | #endif | |
b80864fb | 42 | #if HAVE_NETDB_H |
c906108c | 43 | #include <netdb.h> |
b80864fb DJ |
44 | #endif |
45 | #if HAVE_NETINET_TCP_H | |
c906108c | 46 | #include <netinet/tcp.h> |
b80864fb DJ |
47 | #endif |
48 | #if HAVE_SYS_IOCTL_H | |
c906108c | 49 | #include <sys/ioctl.h> |
b80864fb | 50 | #endif |
68070c10 | 51 | #if HAVE_SIGNAL_H |
c906108c | 52 | #include <signal.h> |
68070c10 PA |
53 | #endif |
54 | #if HAVE_FCNTL_H | |
c906108c | 55 | #include <fcntl.h> |
68070c10 | 56 | #endif |
438e1e42 | 57 | #include "gdb_sys_time.h" |
cf30a8e1 | 58 | #include <unistd.h> |
b80864fb | 59 | #if HAVE_ARPA_INET_H |
0729219d | 60 | #include <arpa/inet.h> |
b80864fb | 61 | #endif |
53ce3c39 | 62 | #include <sys/stat.h> |
9eb1356e PA |
63 | |
64 | #if USE_WIN32API | |
65 | #include <winsock2.h> | |
66 | #endif | |
c906108c | 67 | |
ac8c974e AR |
68 | #if __QNX__ |
69 | #include <sys/iomgr.h> | |
70 | #endif /* __QNX__ */ | |
71 | ||
f450004a DJ |
72 | #ifndef HAVE_SOCKLEN_T |
73 | typedef int socklen_t; | |
74 | #endif | |
75 | ||
0fb4aa4b PA |
76 | #ifndef IN_PROCESS_AGENT |
77 | ||
7390519e PA |
78 | #if USE_WIN32API |
79 | # define INVALID_DESCRIPTOR INVALID_SOCKET | |
80 | #else | |
81 | # define INVALID_DESCRIPTOR -1 | |
82 | #endif | |
83 | ||
24b066ba DE |
84 | /* Extra value for readchar_callback. */ |
85 | enum { | |
86 | /* The callback is currently not scheduled. */ | |
87 | NOT_SCHEDULED = -1 | |
88 | }; | |
89 | ||
90 | /* Status of the readchar callback. | |
91 | Either NOT_SCHEDULED or the callback id. */ | |
92 | static int readchar_callback = NOT_SCHEDULED; | |
93 | ||
bc3b5632 | 94 | static int readchar (void); |
24b066ba DE |
95 | static void reset_readchar (void); |
96 | static void reschedule (void); | |
bc3b5632 | 97 | |
fd500816 DJ |
98 | /* A cache entry for a successfully looked-up symbol. */ |
99 | struct sym_cache | |
100 | { | |
95954743 | 101 | char *name; |
fd500816 DJ |
102 | CORE_ADDR addr; |
103 | struct sym_cache *next; | |
104 | }; | |
105 | ||
c906108c | 106 | int remote_debug = 0; |
03863182 | 107 | struct ui_file *gdb_stdlog; |
c906108c | 108 | |
e0f9f062 DE |
109 | static int remote_is_stdio = 0; |
110 | ||
ec48365d PA |
111 | static gdb_fildes_t remote_desc = INVALID_DESCRIPTOR; |
112 | static gdb_fildes_t listen_desc = INVALID_DESCRIPTOR; | |
c906108c | 113 | |
0d62e5e8 DJ |
114 | /* FIXME headerize? */ |
115 | extern int using_threads; | |
116 | extern int debug_threads; | |
117 | ||
0f48aa01 | 118 | #ifdef USE_WIN32API |
68070c10 PA |
119 | # define read(fd, buf, len) recv (fd, (char *) buf, len, 0) |
120 | # define write(fd, buf, len) send (fd, (char *) buf, len, 0) | |
0f48aa01 DJ |
121 | #endif |
122 | ||
8336d594 PA |
123 | int |
124 | gdb_connected (void) | |
125 | { | |
126 | return remote_desc != INVALID_DESCRIPTOR; | |
127 | } | |
128 | ||
e0f9f062 DE |
129 | /* Return true if the remote connection is over stdio. */ |
130 | ||
131 | int | |
132 | remote_connection_is_stdio (void) | |
133 | { | |
134 | return remote_is_stdio; | |
135 | } | |
136 | ||
8336d594 PA |
137 | static void |
138 | enable_async_notification (int fd) | |
139 | { | |
140 | #if defined(F_SETFL) && defined (FASYNC) | |
141 | int save_fcntl_flags; | |
142 | ||
143 | save_fcntl_flags = fcntl (fd, F_GETFL, 0); | |
144 | fcntl (fd, F_SETFL, save_fcntl_flags | FASYNC); | |
145 | #if defined (F_SETOWN) | |
146 | fcntl (fd, F_SETOWN, getpid ()); | |
147 | #endif | |
148 | #endif | |
149 | } | |
150 | ||
151 | static int | |
152 | handle_accept_event (int err, gdb_client_data client_data) | |
153 | { | |
9eb1356e | 154 | struct sockaddr_in sockaddr; |
8336d594 PA |
155 | socklen_t tmp; |
156 | ||
157 | if (debug_threads) | |
87ce2a04 | 158 | debug_printf ("handling possible accept event\n"); |
8336d594 | 159 | |
9eb1356e PA |
160 | tmp = sizeof (sockaddr); |
161 | remote_desc = accept (listen_desc, (struct sockaddr *) &sockaddr, &tmp); | |
8336d594 PA |
162 | if (remote_desc == -1) |
163 | perror_with_name ("Accept failed"); | |
164 | ||
165 | /* Enable TCP keep alive process. */ | |
166 | tmp = 1; | |
167 | setsockopt (remote_desc, SOL_SOCKET, SO_KEEPALIVE, | |
168 | (char *) &tmp, sizeof (tmp)); | |
169 | ||
170 | /* Tell TCP not to delay small packets. This greatly speeds up | |
171 | interactive response. */ | |
172 | tmp = 1; | |
173 | setsockopt (remote_desc, IPPROTO_TCP, TCP_NODELAY, | |
174 | (char *) &tmp, sizeof (tmp)); | |
175 | ||
176 | #ifndef USE_WIN32API | |
8336d594 PA |
177 | signal (SIGPIPE, SIG_IGN); /* If we don't do this, then gdbserver simply |
178 | exits when the remote side dies. */ | |
03f2bd59 JK |
179 | #endif |
180 | ||
181 | if (run_once) | |
182 | { | |
183 | #ifndef USE_WIN32API | |
184 | close (listen_desc); /* No longer need this */ | |
8336d594 | 185 | #else |
03f2bd59 | 186 | closesocket (listen_desc); /* No longer need this */ |
8336d594 | 187 | #endif |
03f2bd59 | 188 | } |
8336d594 | 189 | |
03f2bd59 JK |
190 | /* Even if !RUN_ONCE no longer notice new connections. Still keep the |
191 | descriptor open for add_file_handler to wait for a new connection. */ | |
8336d594 PA |
192 | delete_file_handler (listen_desc); |
193 | ||
194 | /* Convert IP address to string. */ | |
195 | fprintf (stderr, "Remote debugging from host %s\n", | |
9eb1356e | 196 | inet_ntoa (sockaddr.sin_addr)); |
8336d594 PA |
197 | |
198 | enable_async_notification (remote_desc); | |
199 | ||
200 | /* Register the event loop handler. */ | |
201 | add_file_handler (remote_desc, handle_serial_event, NULL); | |
202 | ||
203 | /* We have a new GDB connection now. If we were disconnected | |
204 | tracing, there's a window where the target could report a stop | |
205 | event to the event loop, and since we have a connection now, we'd | |
206 | try to send vStopped notifications to GDB. But, don't do that | |
207 | until GDB as selected all-stop/non-stop, and has queried the | |
208 | threads' status ('?'). */ | |
209 | target_async (0); | |
210 | ||
211 | return 0; | |
212 | } | |
213 | ||
03f2bd59 JK |
214 | /* Prepare for a later connection to a remote debugger. |
215 | NAME is the filename used for communication. */ | |
216 | ||
217 | void | |
fb32b4f7 | 218 | remote_prepare (const char *name) |
03f2bd59 | 219 | { |
c12a5089 | 220 | client_state &cs = get_client_state (); |
fb32b4f7 | 221 | const char *port_str; |
03f2bd59 JK |
222 | #ifdef USE_WIN32API |
223 | static int winsock_initialized; | |
224 | #endif | |
225 | int port; | |
9eb1356e | 226 | struct sockaddr_in sockaddr; |
03f2bd59 JK |
227 | socklen_t tmp; |
228 | char *port_end; | |
229 | ||
e0f9f062 DE |
230 | remote_is_stdio = 0; |
231 | if (strcmp (name, STDIO_CONNECTION_NAME) == 0) | |
232 | { | |
233 | /* We need to record fact that we're using stdio sooner than the | |
234 | call to remote_open so start_inferior knows the connection is | |
235 | via stdio. */ | |
236 | remote_is_stdio = 1; | |
c12a5089 | 237 | cs.transport_is_reliable = 1; |
e0f9f062 DE |
238 | return; |
239 | } | |
240 | ||
03f2bd59 JK |
241 | port_str = strchr (name, ':'); |
242 | if (port_str == NULL) | |
243 | { | |
c12a5089 | 244 | cs.transport_is_reliable = 0; |
03f2bd59 JK |
245 | return; |
246 | } | |
247 | ||
248 | port = strtoul (port_str + 1, &port_end, 10); | |
249 | if (port_str[1] == '\0' || *port_end != '\0') | |
50278d59 | 250 | error ("Bad port argument: %s", name); |
03f2bd59 JK |
251 | |
252 | #ifdef USE_WIN32API | |
253 | if (!winsock_initialized) | |
254 | { | |
255 | WSADATA wsad; | |
256 | ||
257 | WSAStartup (MAKEWORD (1, 0), &wsad); | |
258 | winsock_initialized = 1; | |
259 | } | |
260 | #endif | |
261 | ||
262 | listen_desc = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP); | |
263 | if (listen_desc == -1) | |
264 | perror_with_name ("Can't open socket"); | |
265 | ||
266 | /* Allow rapid reuse of this port. */ | |
267 | tmp = 1; | |
268 | setsockopt (listen_desc, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp, | |
269 | sizeof (tmp)); | |
270 | ||
9eb1356e PA |
271 | sockaddr.sin_family = PF_INET; |
272 | sockaddr.sin_port = htons (port); | |
273 | sockaddr.sin_addr.s_addr = INADDR_ANY; | |
03f2bd59 | 274 | |
9eb1356e | 275 | if (bind (listen_desc, (struct sockaddr *) &sockaddr, sizeof (sockaddr)) |
03f2bd59 JK |
276 | || listen (listen_desc, 1)) |
277 | perror_with_name ("Can't bind address"); | |
278 | ||
c12a5089 | 279 | cs.transport_is_reliable = 1; |
03f2bd59 JK |
280 | } |
281 | ||
c906108c SS |
282 | /* Open a connection to a remote debugger. |
283 | NAME is the filename used for communication. */ | |
284 | ||
285 | void | |
fb32b4f7 | 286 | remote_open (const char *name) |
c906108c | 287 | { |
fb32b4f7 | 288 | const char *port_str; |
8264bb58 DJ |
289 | |
290 | port_str = strchr (name, ':'); | |
e0f9f062 | 291 | #ifdef USE_WIN32API |
8264bb58 | 292 | if (port_str == NULL) |
e0f9f062 DE |
293 | error ("Only <host>:<port> is supported on this platform."); |
294 | #endif | |
295 | ||
296 | if (strcmp (name, STDIO_CONNECTION_NAME) == 0) | |
297 | { | |
298 | fprintf (stderr, "Remote debugging using stdio\n"); | |
299 | ||
300 | /* Use stdin as the handle of the connection. | |
301 | We only select on reads, for example. */ | |
302 | remote_desc = fileno (stdin); | |
303 | ||
304 | enable_async_notification (remote_desc); | |
305 | ||
306 | /* Register the event loop handler. */ | |
307 | add_file_handler (remote_desc, handle_serial_event, NULL); | |
308 | } | |
309 | #ifndef USE_WIN32API | |
310 | else if (port_str == NULL) | |
c906108c | 311 | { |
8264bb58 DJ |
312 | struct stat statbuf; |
313 | ||
314 | if (stat (name, &statbuf) == 0 | |
315 | && (S_ISCHR (statbuf.st_mode) || S_ISFIFO (statbuf.st_mode))) | |
316 | remote_desc = open (name, O_RDWR); | |
317 | else | |
318 | { | |
319 | errno = EINVAL; | |
320 | remote_desc = -1; | |
321 | } | |
322 | ||
c906108c SS |
323 | if (remote_desc < 0) |
324 | perror_with_name ("Could not open remote device"); | |
325 | ||
726e1356 | 326 | #if HAVE_TERMIOS_H |
c906108c SS |
327 | { |
328 | struct termios termios; | |
c5aa993b | 329 | tcgetattr (remote_desc, &termios); |
c906108c SS |
330 | |
331 | termios.c_iflag = 0; | |
332 | termios.c_oflag = 0; | |
333 | termios.c_lflag = 0; | |
c5aa993b | 334 | termios.c_cflag &= ~(CSIZE | PARENB); |
c906108c | 335 | termios.c_cflag |= CLOCAL | CS8; |
d0608e50 | 336 | termios.c_cc[VMIN] = 1; |
c906108c SS |
337 | termios.c_cc[VTIME] = 0; |
338 | ||
c5aa993b | 339 | tcsetattr (remote_desc, TCSANOW, &termios); |
c906108c SS |
340 | } |
341 | #endif | |
342 | ||
e641a1ca | 343 | fprintf (stderr, "Remote debugging using %s\n", name); |
a6f3e723 | 344 | |
8336d594 PA |
345 | enable_async_notification (remote_desc); |
346 | ||
347 | /* Register the event loop handler. */ | |
348 | add_file_handler (remote_desc, handle_serial_event, NULL); | |
c906108c | 349 | } |
e0f9f062 | 350 | #endif /* USE_WIN32API */ |
c906108c SS |
351 | else |
352 | { | |
c906108c | 353 | int port; |
03f2bd59 | 354 | socklen_t len; |
c906108c | 355 | struct sockaddr_in sockaddr; |
c906108c | 356 | |
03f2bd59 JK |
357 | len = sizeof (sockaddr); |
358 | if (getsockname (listen_desc, | |
359 | (struct sockaddr *) &sockaddr, &len) < 0 | |
360 | || len < sizeof (sockaddr)) | |
361 | perror_with_name ("Can't determine port"); | |
362 | port = ntohs (sockaddr.sin_port); | |
6f8486da | 363 | |
6910d122 | 364 | fprintf (stderr, "Listening on port %d\n", port); |
b80864fb | 365 | fflush (stderr); |
6910d122 | 366 | |
8336d594 PA |
367 | /* Register the event loop handler. */ |
368 | add_file_handler (listen_desc, handle_accept_event, NULL); | |
c906108c | 369 | } |
c906108c SS |
370 | } |
371 | ||
372 | void | |
fba45db2 | 373 | remote_close (void) |
c906108c | 374 | { |
bd99dc85 PA |
375 | delete_file_handler (remote_desc); |
376 | ||
e849ea89 | 377 | disable_async_io (); |
8b207339 | 378 | |
b80864fb DJ |
379 | #ifdef USE_WIN32API |
380 | closesocket (remote_desc); | |
381 | #else | |
e0f9f062 DE |
382 | if (! remote_connection_is_stdio ()) |
383 | close (remote_desc); | |
b80864fb | 384 | #endif |
8336d594 | 385 | remote_desc = INVALID_DESCRIPTOR; |
24b066ba DE |
386 | |
387 | reset_readchar (); | |
c906108c SS |
388 | } |
389 | ||
0fb4aa4b PA |
390 | #endif |
391 | ||
0fb4aa4b PA |
392 | #ifndef IN_PROCESS_AGENT |
393 | ||
dae5f5cf | 394 | void |
2f2893d9 DJ |
395 | decode_address (CORE_ADDR *addrp, const char *start, int len) |
396 | { | |
397 | CORE_ADDR addr; | |
398 | char ch; | |
399 | int i; | |
400 | ||
401 | addr = 0; | |
402 | for (i = 0; i < len; i++) | |
403 | { | |
404 | ch = start[i]; | |
405 | addr = addr << 4; | |
406 | addr = addr | (fromhex (ch) & 0x0f); | |
407 | } | |
408 | *addrp = addr; | |
409 | } | |
410 | ||
89be2091 DJ |
411 | const char * |
412 | decode_address_to_semicolon (CORE_ADDR *addrp, const char *start) | |
413 | { | |
414 | const char *end; | |
415 | ||
416 | end = start; | |
417 | while (*end != '\0' && *end != ';') | |
418 | end++; | |
419 | ||
420 | decode_address (addrp, start, end - start); | |
421 | ||
422 | if (*end == ';') | |
423 | end++; | |
424 | return end; | |
425 | } | |
426 | ||
0fb4aa4b PA |
427 | #endif |
428 | ||
0fb4aa4b PA |
429 | #ifndef IN_PROCESS_AGENT |
430 | ||
5ffff7c1 DJ |
431 | /* Look for a sequence of characters which can be run-length encoded. |
432 | If there are any, update *CSUM and *P. Otherwise, output the | |
433 | single character. Return the number of characters consumed. */ | |
434 | ||
435 | static int | |
436 | try_rle (char *buf, int remaining, unsigned char *csum, char **p) | |
437 | { | |
438 | int n; | |
439 | ||
440 | /* Always output the character. */ | |
441 | *csum += buf[0]; | |
442 | *(*p)++ = buf[0]; | |
443 | ||
444 | /* Don't go past '~'. */ | |
445 | if (remaining > 97) | |
446 | remaining = 97; | |
447 | ||
448 | for (n = 1; n < remaining; n++) | |
449 | if (buf[n] != buf[0]) | |
450 | break; | |
451 | ||
452 | /* N is the index of the first character not the same as buf[0]. | |
453 | buf[0] is counted twice, so by decrementing N, we get the number | |
454 | of characters the RLE sequence will replace. */ | |
455 | n--; | |
456 | ||
457 | if (n < 3) | |
458 | return 1; | |
459 | ||
460 | /* Skip the frame characters. The manual says to skip '+' and '-' | |
461 | also, but there's no reason to. Unfortunately these two unusable | |
462 | characters double the encoded length of a four byte zero | |
463 | value. */ | |
464 | while (n + 29 == '$' || n + 29 == '#') | |
465 | n--; | |
466 | ||
467 | *csum += '*'; | |
468 | *(*p)++ = '*'; | |
469 | *csum += n + 29; | |
470 | *(*p)++ = n + 29; | |
471 | ||
472 | return n + 1; | |
473 | } | |
474 | ||
0fb4aa4b PA |
475 | #endif |
476 | ||
0fb4aa4b PA |
477 | #ifndef IN_PROCESS_AGENT |
478 | ||
95954743 PA |
479 | /* Write a PTID to BUF. Returns BUF+CHARACTERS_WRITTEN. */ |
480 | ||
481 | char * | |
482 | write_ptid (char *buf, ptid_t ptid) | |
483 | { | |
c12a5089 | 484 | client_state &cs = get_client_state (); |
95954743 PA |
485 | int pid, tid; |
486 | ||
c12a5089 | 487 | if (cs.multi_process) |
95954743 PA |
488 | { |
489 | pid = ptid_get_pid (ptid); | |
490 | if (pid < 0) | |
491 | buf += sprintf (buf, "p-%x.", -pid); | |
492 | else | |
493 | buf += sprintf (buf, "p%x.", pid); | |
494 | } | |
495 | tid = ptid_get_lwp (ptid); | |
496 | if (tid < 0) | |
497 | buf += sprintf (buf, "-%x", -tid); | |
498 | else | |
499 | buf += sprintf (buf, "%x", tid); | |
500 | ||
501 | return buf; | |
502 | } | |
503 | ||
5b3da067 | 504 | static ULONGEST |
256642e8 | 505 | hex_or_minus_one (const char *buf, const char **obuf) |
95954743 PA |
506 | { |
507 | ULONGEST ret; | |
508 | ||
61012eef | 509 | if (startswith (buf, "-1")) |
95954743 PA |
510 | { |
511 | ret = (ULONGEST) -1; | |
512 | buf += 2; | |
513 | } | |
514 | else | |
515 | buf = unpack_varlen_hex (buf, &ret); | |
516 | ||
517 | if (obuf) | |
518 | *obuf = buf; | |
519 | ||
520 | return ret; | |
521 | } | |
522 | ||
523 | /* Extract a PTID from BUF. If non-null, OBUF is set to the to one | |
524 | passed the last parsed char. Returns null_ptid on error. */ | |
525 | ptid_t | |
256642e8 | 526 | read_ptid (const char *buf, const char **obuf) |
95954743 | 527 | { |
256642e8 PA |
528 | const char *p = buf; |
529 | const char *pp; | |
95954743 PA |
530 | ULONGEST pid = 0, tid = 0; |
531 | ||
532 | if (*p == 'p') | |
533 | { | |
534 | /* Multi-process ptid. */ | |
535 | pp = unpack_varlen_hex (p + 1, &pid); | |
536 | if (*pp != '.') | |
537 | error ("invalid remote ptid: %s\n", p); | |
538 | ||
539 | p = pp + 1; | |
540 | ||
541 | tid = hex_or_minus_one (p, &pp); | |
542 | ||
543 | if (obuf) | |
544 | *obuf = pp; | |
545 | return ptid_build (pid, tid, 0); | |
546 | } | |
547 | ||
548 | /* No multi-process. Just a tid. */ | |
549 | tid = hex_or_minus_one (p, &pp); | |
550 | ||
3d40fbb5 PA |
551 | /* Since GDB is not sending a process id (multi-process extensions |
552 | are off), then there's only one process. Default to the first in | |
553 | the list. */ | |
554 | pid = pid_of (get_first_process ()); | |
95954743 PA |
555 | |
556 | if (obuf) | |
557 | *obuf = pp; | |
558 | return ptid_build (pid, tid, 0); | |
559 | } | |
560 | ||
e0f9f062 DE |
561 | /* Write COUNT bytes in BUF to the client. |
562 | The result is the number of bytes written or -1 if error. | |
563 | This may return less than COUNT. */ | |
564 | ||
565 | static int | |
566 | write_prim (const void *buf, int count) | |
567 | { | |
568 | if (remote_connection_is_stdio ()) | |
569 | return write (fileno (stdout), buf, count); | |
570 | else | |
571 | return write (remote_desc, buf, count); | |
572 | } | |
573 | ||
574 | /* Read COUNT bytes from the client and store in BUF. | |
575 | The result is the number of bytes read or -1 if error. | |
576 | This may return less than COUNT. */ | |
577 | ||
578 | static int | |
579 | read_prim (void *buf, int count) | |
580 | { | |
581 | if (remote_connection_is_stdio ()) | |
582 | return read (fileno (stdin), buf, count); | |
583 | else | |
584 | return read (remote_desc, buf, count); | |
585 | } | |
586 | ||
c906108c | 587 | /* Send a packet to the remote machine, with error checking. |
01f9e8fa DJ |
588 | The data of the packet is in BUF, and the length of the |
589 | packet is in CNT. Returns >= 0 on success, -1 otherwise. */ | |
c906108c | 590 | |
bd99dc85 PA |
591 | static int |
592 | putpkt_binary_1 (char *buf, int cnt, int is_notif) | |
c906108c | 593 | { |
c12a5089 | 594 | client_state &cs = get_client_state (); |
c906108c SS |
595 | int i; |
596 | unsigned char csum = 0; | |
0a30fbc4 | 597 | char *buf2; |
c906108c | 598 | char *p; |
bc3b5632 | 599 | int cc; |
c906108c | 600 | |
224c3ddb | 601 | buf2 = (char *) xmalloc (strlen ("$") + cnt + strlen ("#nn") + 1); |
0a30fbc4 | 602 | |
c906108c SS |
603 | /* Copy the packet into buffer BUF2, encapsulating it |
604 | and giving it a checksum. */ | |
605 | ||
606 | p = buf2; | |
bd99dc85 PA |
607 | if (is_notif) |
608 | *p++ = '%'; | |
609 | else | |
610 | *p++ = '$'; | |
c906108c | 611 | |
5ffff7c1 DJ |
612 | for (i = 0; i < cnt;) |
613 | i += try_rle (buf + i, cnt - i, &csum, &p); | |
614 | ||
c906108c SS |
615 | *p++ = '#'; |
616 | *p++ = tohex ((csum >> 4) & 0xf); | |
617 | *p++ = tohex (csum & 0xf); | |
618 | ||
619 | *p = '\0'; | |
620 | ||
621 | /* Send it over and over until we get a positive ack. */ | |
622 | ||
623 | do | |
624 | { | |
e0f9f062 | 625 | if (write_prim (buf2, p - buf2) != p - buf2) |
c906108c SS |
626 | { |
627 | perror ("putpkt(write)"); | |
f88c79e6 | 628 | free (buf2); |
c906108c SS |
629 | return -1; |
630 | } | |
631 | ||
c12a5089 | 632 | if (cs.noack_mode || is_notif) |
a6f3e723 SL |
633 | { |
634 | /* Don't expect an ack then. */ | |
635 | if (remote_debug) | |
636 | { | |
bd99dc85 | 637 | if (is_notif) |
4eefa7bc | 638 | debug_printf ("putpkt (\"%s\"); [notif]\n", buf2); |
bd99dc85 | 639 | else |
4eefa7bc PA |
640 | debug_printf ("putpkt (\"%s\"); [noack mode]\n", buf2); |
641 | debug_flush (); | |
a6f3e723 SL |
642 | } |
643 | break; | |
644 | } | |
645 | ||
c906108c | 646 | if (remote_debug) |
0d62e5e8 | 647 | { |
4eefa7bc PA |
648 | debug_printf ("putpkt (\"%s\"); [looking for ack]\n", buf2); |
649 | debug_flush (); | |
0d62e5e8 | 650 | } |
0d62e5e8 | 651 | |
bc3b5632 | 652 | cc = readchar (); |
c906108c | 653 | |
bc3b5632 DE |
654 | if (cc < 0) |
655 | { | |
0a30fbc4 | 656 | free (buf2); |
c906108c SS |
657 | return -1; |
658 | } | |
0d62e5e8 | 659 | |
bc3b5632 DE |
660 | if (remote_debug) |
661 | { | |
4eefa7bc PA |
662 | debug_printf ("[received '%c' (0x%x)]\n", cc, cc); |
663 | debug_flush (); | |
bc3b5632 DE |
664 | } |
665 | ||
0d62e5e8 | 666 | /* Check for an input interrupt while we're here. */ |
0bfdf32f | 667 | if (cc == '\003' && current_thread != NULL) |
ef57601b | 668 | (*the_target->request_interrupt) (); |
c906108c | 669 | } |
bc3b5632 | 670 | while (cc != '+'); |
c906108c | 671 | |
0a30fbc4 | 672 | free (buf2); |
c906108c SS |
673 | return 1; /* Success! */ |
674 | } | |
675 | ||
bd99dc85 PA |
676 | int |
677 | putpkt_binary (char *buf, int cnt) | |
678 | { | |
679 | return putpkt_binary_1 (buf, cnt, 0); | |
680 | } | |
681 | ||
01f9e8fa DJ |
682 | /* Send a packet to the remote machine, with error checking. The data |
683 | of the packet is in BUF, and the packet should be a NUL-terminated | |
684 | string. Returns >= 0 on success, -1 otherwise. */ | |
685 | ||
686 | int | |
687 | putpkt (char *buf) | |
688 | { | |
689 | return putpkt_binary (buf, strlen (buf)); | |
690 | } | |
691 | ||
bd99dc85 PA |
692 | int |
693 | putpkt_notif (char *buf) | |
694 | { | |
695 | return putpkt_binary_1 (buf, strlen (buf), 1); | |
696 | } | |
697 | ||
c906108c SS |
698 | /* Come here when we get an input interrupt from the remote side. This |
699 | interrupt should only be active while we are waiting for the child to do | |
bc3b5632 DE |
700 | something. Thus this assumes readchar:bufcnt is 0. |
701 | About the only thing that should come through is a ^C, which | |
ef57601b | 702 | will cause us to request child interruption. */ |
c906108c SS |
703 | |
704 | static void | |
0a30fbc4 | 705 | input_interrupt (int unused) |
c906108c | 706 | { |
cf30a8e1 C |
707 | fd_set readset; |
708 | struct timeval immediate = { 0, 0 }; | |
c906108c | 709 | |
cf30a8e1 C |
710 | /* Protect against spurious interrupts. This has been observed to |
711 | be a problem under NetBSD 1.4 and 1.5. */ | |
c906108c | 712 | |
cf30a8e1 C |
713 | FD_ZERO (&readset); |
714 | FD_SET (remote_desc, &readset); | |
715 | if (select (remote_desc + 1, &readset, 0, 0, &immediate) > 0) | |
c906108c | 716 | { |
cf30a8e1 | 717 | int cc; |
fd500816 | 718 | char c = 0; |
7390519e | 719 | |
e0f9f062 | 720 | cc = read_prim (&c, 1); |
c906108c | 721 | |
fafcc06a | 722 | if (cc == 0) |
cf30a8e1 | 723 | { |
fafcc06a SDJ |
724 | fprintf (stderr, "client connection closed\n"); |
725 | return; | |
726 | } | |
f0db101d | 727 | else if (cc != 1 || c != '\003') |
fafcc06a SDJ |
728 | { |
729 | fprintf (stderr, "input_interrupt, count = %d c = %d ", cc, c); | |
730 | if (isprint (c)) | |
731 | fprintf (stderr, "('%c')\n", c); | |
732 | else | |
733 | fprintf (stderr, "('\\x%02x')\n", c & 0xff); | |
cf30a8e1 C |
734 | return; |
735 | } | |
7390519e | 736 | |
ef57601b | 737 | (*the_target->request_interrupt) (); |
cf30a8e1 | 738 | } |
c906108c | 739 | } |
7390519e PA |
740 | |
741 | /* Check if the remote side sent us an interrupt request (^C). */ | |
742 | void | |
743 | check_remote_input_interrupt_request (void) | |
744 | { | |
745 | /* This function may be called before establishing communications, | |
746 | therefore we need to validate the remote descriptor. */ | |
747 | ||
748 | if (remote_desc == INVALID_DESCRIPTOR) | |
749 | return; | |
750 | ||
751 | input_interrupt (0); | |
752 | } | |
b80864fb | 753 | |
8b207339 YQ |
754 | /* Asynchronous I/O support. SIGIO must be unblocked when waiting, |
755 | in order to accept Control-C from the client, and must be blocked | |
756 | when talking to the client. */ | |
c906108c | 757 | |
a20d5e98 | 758 | static void |
8b207339 | 759 | block_unblock_async_io (int block) |
62ea82f5 | 760 | { |
b80864fb | 761 | #ifndef USE_WIN32API |
62ea82f5 | 762 | sigset_t sigio_set; |
a20d5e98 | 763 | |
62ea82f5 DJ |
764 | sigemptyset (&sigio_set); |
765 | sigaddset (&sigio_set, SIGIO); | |
8b207339 | 766 | sigprocmask (block ? SIG_BLOCK : SIG_UNBLOCK, &sigio_set, NULL); |
b80864fb | 767 | #endif |
62ea82f5 DJ |
768 | } |
769 | ||
ac8c974e AR |
770 | #ifdef __QNX__ |
771 | static void | |
772 | nto_comctrl (int enable) | |
773 | { | |
774 | struct sigevent event; | |
775 | ||
776 | if (enable) | |
777 | { | |
778 | event.sigev_notify = SIGEV_SIGNAL_THREAD; | |
779 | event.sigev_signo = SIGIO; | |
780 | event.sigev_code = 0; | |
781 | event.sigev_value.sival_ptr = NULL; | |
782 | event.sigev_priority = -1; | |
783 | ionotify (remote_desc, _NOTIFY_ACTION_POLLARM, _NOTIFY_COND_INPUT, | |
784 | &event); | |
785 | } | |
786 | else | |
787 | ionotify (remote_desc, _NOTIFY_ACTION_POLL, _NOTIFY_COND_INPUT, NULL); | |
788 | } | |
789 | #endif /* __QNX__ */ | |
790 | ||
791 | ||
fd500816 DJ |
792 | /* Current state of asynchronous I/O. */ |
793 | static int async_io_enabled; | |
794 | ||
795 | /* Enable asynchronous I/O. */ | |
c906108c | 796 | void |
fba45db2 | 797 | enable_async_io (void) |
c906108c | 798 | { |
fd500816 DJ |
799 | if (async_io_enabled) |
800 | return; | |
801 | ||
8b207339 YQ |
802 | block_unblock_async_io (0); |
803 | ||
fd500816 | 804 | async_io_enabled = 1; |
ac8c974e AR |
805 | #ifdef __QNX__ |
806 | nto_comctrl (1); | |
807 | #endif /* __QNX__ */ | |
c906108c SS |
808 | } |
809 | ||
fd500816 | 810 | /* Disable asynchronous I/O. */ |
c906108c | 811 | void |
fba45db2 | 812 | disable_async_io (void) |
c906108c | 813 | { |
fd500816 DJ |
814 | if (!async_io_enabled) |
815 | return; | |
816 | ||
8b207339 YQ |
817 | block_unblock_async_io (1); |
818 | ||
fd500816 | 819 | async_io_enabled = 0; |
ac8c974e AR |
820 | #ifdef __QNX__ |
821 | nto_comctrl (0); | |
822 | #endif /* __QNX__ */ | |
823 | ||
c906108c SS |
824 | } |
825 | ||
a20d5e98 DJ |
826 | void |
827 | initialize_async_io (void) | |
828 | { | |
8b207339 | 829 | /* Make sure that async I/O starts blocked. */ |
a20d5e98 DJ |
830 | async_io_enabled = 1; |
831 | disable_async_io (); | |
832 | ||
8b207339 YQ |
833 | /* Install the signal handler. */ |
834 | #ifndef USE_WIN32API | |
835 | signal (SIGIO, input_interrupt); | |
836 | #endif | |
a20d5e98 DJ |
837 | } |
838 | ||
24b066ba DE |
839 | /* Internal buffer used by readchar. |
840 | These are global to readchar because reschedule_remote needs to be | |
841 | able to tell whether the buffer is empty. */ | |
842 | ||
843 | static unsigned char readchar_buf[BUFSIZ]; | |
844 | static int readchar_bufcnt = 0; | |
845 | static unsigned char *readchar_bufp; | |
846 | ||
c906108c SS |
847 | /* Returns next char from remote GDB. -1 if error. */ |
848 | ||
849 | static int | |
fba45db2 | 850 | readchar (void) |
c906108c | 851 | { |
c12a5089 | 852 | client_state &cs = get_client_state (); |
24b066ba | 853 | int ch; |
c906108c | 854 | |
24b066ba DE |
855 | if (readchar_bufcnt == 0) |
856 | { | |
e0f9f062 | 857 | readchar_bufcnt = read_prim (readchar_buf, sizeof (readchar_buf)); |
c906108c | 858 | |
24b066ba DE |
859 | if (readchar_bufcnt <= 0) |
860 | { | |
861 | if (readchar_bufcnt == 0) | |
fddedbe6 PA |
862 | { |
863 | if (remote_debug) | |
4eefa7bc | 864 | debug_printf ("readchar: Got EOF\n"); |
fddedbe6 | 865 | } |
24b066ba DE |
866 | else |
867 | perror ("readchar"); | |
c906108c | 868 | |
24b066ba DE |
869 | return -1; |
870 | } | |
c906108c | 871 | |
24b066ba | 872 | readchar_bufp = readchar_buf; |
c906108c SS |
873 | } |
874 | ||
24b066ba DE |
875 | readchar_bufcnt--; |
876 | ch = *readchar_bufp++; | |
877 | reschedule (); | |
878 | return ch; | |
879 | } | |
880 | ||
881 | /* Reset the readchar state machine. */ | |
882 | ||
883 | static void | |
884 | reset_readchar (void) | |
885 | { | |
886 | readchar_bufcnt = 0; | |
887 | if (readchar_callback != NOT_SCHEDULED) | |
888 | { | |
889 | delete_callback_event (readchar_callback); | |
890 | readchar_callback = NOT_SCHEDULED; | |
891 | } | |
892 | } | |
893 | ||
894 | /* Process remaining data in readchar_buf. */ | |
895 | ||
896 | static int | |
897 | process_remaining (void *context) | |
898 | { | |
899 | int res; | |
900 | ||
901 | /* This is a one-shot event. */ | |
902 | readchar_callback = NOT_SCHEDULED; | |
903 | ||
904 | if (readchar_bufcnt > 0) | |
905 | res = handle_serial_event (0, NULL); | |
906 | else | |
907 | res = 0; | |
908 | ||
909 | return res; | |
910 | } | |
911 | ||
912 | /* If there is still data in the buffer, queue another event to process it, | |
913 | we can't sleep in select yet. */ | |
914 | ||
915 | static void | |
916 | reschedule (void) | |
917 | { | |
918 | if (readchar_bufcnt > 0 && readchar_callback == NOT_SCHEDULED) | |
919 | readchar_callback = append_callback_event (process_remaining, NULL); | |
c906108c SS |
920 | } |
921 | ||
922 | /* Read a packet from the remote machine, with error checking, | |
923 | and store it in BUF. Returns length of packet, or negative if error. */ | |
924 | ||
925 | int | |
fba45db2 | 926 | getpkt (char *buf) |
c906108c | 927 | { |
c12a5089 | 928 | client_state &cs = get_client_state (); |
c906108c SS |
929 | char *bp; |
930 | unsigned char csum, c1, c2; | |
931 | int c; | |
932 | ||
933 | while (1) | |
934 | { | |
935 | csum = 0; | |
936 | ||
937 | while (1) | |
938 | { | |
939 | c = readchar (); | |
5a0dd67a YQ |
940 | |
941 | /* The '\003' may appear before or after each packet, so | |
942 | check for an input interrupt. */ | |
943 | if (c == '\003') | |
944 | { | |
945 | (*the_target->request_interrupt) (); | |
946 | continue; | |
947 | } | |
948 | ||
c906108c SS |
949 | if (c == '$') |
950 | break; | |
951 | if (remote_debug) | |
0d62e5e8 | 952 | { |
4eefa7bc PA |
953 | debug_printf ("[getpkt: discarding char '%c']\n", c); |
954 | debug_flush (); | |
0d62e5e8 DJ |
955 | } |
956 | ||
c906108c SS |
957 | if (c < 0) |
958 | return -1; | |
959 | } | |
960 | ||
961 | bp = buf; | |
962 | while (1) | |
963 | { | |
964 | c = readchar (); | |
965 | if (c < 0) | |
966 | return -1; | |
967 | if (c == '#') | |
968 | break; | |
969 | *bp++ = c; | |
970 | csum += c; | |
971 | } | |
972 | *bp = 0; | |
973 | ||
974 | c1 = fromhex (readchar ()); | |
975 | c2 = fromhex (readchar ()); | |
c5aa993b | 976 | |
c906108c SS |
977 | if (csum == (c1 << 4) + c2) |
978 | break; | |
979 | ||
c12a5089 | 980 | if (cs.noack_mode) |
a6f3e723 | 981 | { |
493e2a69 MS |
982 | fprintf (stderr, |
983 | "Bad checksum, sentsum=0x%x, csum=0x%x, " | |
984 | "buf=%s [no-ack-mode, Bad medium?]\n", | |
a6f3e723 SL |
985 | (c1 << 4) + c2, csum, buf); |
986 | /* Not much we can do, GDB wasn't expecting an ack/nac. */ | |
987 | break; | |
988 | } | |
989 | ||
c906108c SS |
990 | fprintf (stderr, "Bad checksum, sentsum=0x%x, csum=0x%x, buf=%s\n", |
991 | (c1 << 4) + c2, csum, buf); | |
e0f9f062 | 992 | if (write_prim ("-", 1) != 1) |
e581f2b4 | 993 | return -1; |
c906108c SS |
994 | } |
995 | ||
c12a5089 | 996 | if (!cs.noack_mode) |
0d62e5e8 | 997 | { |
a6f3e723 SL |
998 | if (remote_debug) |
999 | { | |
4eefa7bc PA |
1000 | debug_printf ("getpkt (\"%s\"); [sending ack] \n", buf); |
1001 | debug_flush (); | |
a6f3e723 | 1002 | } |
c906108c | 1003 | |
e0f9f062 | 1004 | if (write_prim ("+", 1) != 1) |
e581f2b4 | 1005 | return -1; |
c906108c | 1006 | |
a6f3e723 SL |
1007 | if (remote_debug) |
1008 | { | |
4eefa7bc PA |
1009 | debug_printf ("[sent ack]\n"); |
1010 | debug_flush (); | |
a6f3e723 | 1011 | } |
0d62e5e8 | 1012 | } |
86b1f9c5 PM |
1013 | else |
1014 | { | |
1015 | if (remote_debug) | |
1016 | { | |
4eefa7bc PA |
1017 | debug_printf ("getpkt (\"%s\"); [no ack sent] \n", buf); |
1018 | debug_flush (); | |
86b1f9c5 PM |
1019 | } |
1020 | } | |
0d62e5e8 | 1021 | |
18879fef YQ |
1022 | /* The readchar above may have already read a '\003' out of the socket |
1023 | and moved it to the local buffer. For example, when GDB sends | |
1024 | vCont;c immediately followed by interrupt (see | |
1025 | gdb.base/interrupt-noterm.exp). As soon as we see the vCont;c, we'll | |
1026 | resume the inferior and wait. Since we've already moved the '\003' | |
1027 | to the local buffer, SIGIO won't help. In that case, if we don't | |
1028 | check for interrupt after the vCont;c packet, the interrupt character | |
1029 | would stay in the buffer unattended until after the next (unrelated) | |
1030 | stop. */ | |
1031 | while (readchar_bufcnt > 0 && *readchar_bufp == '\003') | |
1032 | { | |
1033 | /* Consume the interrupt character in the buffer. */ | |
1034 | readchar (); | |
1035 | (*the_target->request_interrupt) (); | |
1036 | } | |
1037 | ||
c906108c SS |
1038 | return bp - buf; |
1039 | } | |
1040 | ||
1041 | void | |
fba45db2 | 1042 | write_ok (char *buf) |
c906108c SS |
1043 | { |
1044 | buf[0] = 'O'; | |
1045 | buf[1] = 'K'; | |
1046 | buf[2] = '\0'; | |
1047 | } | |
1048 | ||
1049 | void | |
fba45db2 | 1050 | write_enn (char *buf) |
c906108c | 1051 | { |
c89dc5d4 | 1052 | /* Some day, we should define the meanings of the error codes... */ |
c906108c | 1053 | buf[0] = 'E'; |
c89dc5d4 DJ |
1054 | buf[1] = '0'; |
1055 | buf[2] = '1'; | |
c906108c SS |
1056 | buf[3] = '\0'; |
1057 | } | |
1058 | ||
0fb4aa4b PA |
1059 | #endif |
1060 | ||
0fb4aa4b | 1061 | #ifndef IN_PROCESS_AGENT |
c906108c | 1062 | |
c906108c | 1063 | static char * |
442ea881 | 1064 | outreg (struct regcache *regcache, int regno, char *buf) |
c906108c | 1065 | { |
5c44784c JM |
1066 | if ((regno >> 12) != 0) |
1067 | *buf++ = tohex ((regno >> 12) & 0xf); | |
1068 | if ((regno >> 8) != 0) | |
1069 | *buf++ = tohex ((regno >> 8) & 0xf); | |
1070 | *buf++ = tohex ((regno >> 4) & 0xf); | |
c906108c SS |
1071 | *buf++ = tohex (regno & 0xf); |
1072 | *buf++ = ':'; | |
442ea881 | 1073 | collect_register_as_string (regcache, regno, buf); |
3aee8918 | 1074 | buf += 2 * register_size (regcache->tdesc, regno); |
c906108c SS |
1075 | *buf++ = ';'; |
1076 | ||
1077 | return buf; | |
1078 | } | |
1079 | ||
1080 | void | |
95954743 | 1081 | prepare_resume_reply (char *buf, ptid_t ptid, |
5b1c542e | 1082 | struct target_waitstatus *status) |
c906108c | 1083 | { |
c12a5089 | 1084 | client_state &cs = get_client_state (); |
5b1c542e | 1085 | if (debug_threads) |
87ce2a04 DE |
1086 | debug_printf ("Writing resume reply for %s:%d\n", |
1087 | target_pid_to_str (ptid), status->kind); | |
c906108c | 1088 | |
5b1c542e | 1089 | switch (status->kind) |
c906108c | 1090 | { |
5b1c542e | 1091 | case TARGET_WAITKIND_STOPPED: |
de0d863e | 1092 | case TARGET_WAITKIND_FORKED: |
c269dbdb | 1093 | case TARGET_WAITKIND_VFORKED: |
8228463c | 1094 | case TARGET_WAITKIND_VFORK_DONE: |
94585166 | 1095 | case TARGET_WAITKIND_EXECD: |
65706a29 | 1096 | case TARGET_WAITKIND_THREAD_CREATED: |
82075af2 JS |
1097 | case TARGET_WAITKIND_SYSCALL_ENTRY: |
1098 | case TARGET_WAITKIND_SYSCALL_RETURN: | |
5b1c542e | 1099 | { |
0bfdf32f | 1100 | struct thread_info *saved_thread; |
5b1c542e | 1101 | const char **regp; |
442ea881 | 1102 | struct regcache *regcache; |
e013ee27 | 1103 | |
c12a5089 SC |
1104 | if ((status->kind == TARGET_WAITKIND_FORKED && cs.report_fork_events) |
1105 | || (status->kind == TARGET_WAITKIND_VFORKED | |
1106 | && cs.report_vfork_events)) | |
de0d863e DB |
1107 | { |
1108 | enum gdb_signal signal = GDB_SIGNAL_TRAP; | |
c269dbdb DB |
1109 | const char *event = (status->kind == TARGET_WAITKIND_FORKED |
1110 | ? "fork" : "vfork"); | |
de0d863e | 1111 | |
c269dbdb | 1112 | sprintf (buf, "T%02x%s:", signal, event); |
de0d863e DB |
1113 | buf += strlen (buf); |
1114 | buf = write_ptid (buf, status->value.related_pid); | |
1115 | strcat (buf, ";"); | |
1116 | } | |
c12a5089 SC |
1117 | else if (status->kind == TARGET_WAITKIND_VFORK_DONE |
1118 | && cs.report_vfork_events) | |
8228463c PA |
1119 | { |
1120 | enum gdb_signal signal = GDB_SIGNAL_TRAP; | |
1121 | ||
1122 | sprintf (buf, "T%02xvforkdone:;", signal); | |
1123 | } | |
c12a5089 | 1124 | else if (status->kind == TARGET_WAITKIND_EXECD && cs.report_exec_events) |
94585166 DB |
1125 | { |
1126 | enum gdb_signal signal = GDB_SIGNAL_TRAP; | |
1127 | const char *event = "exec"; | |
1128 | char hexified_pathname[PATH_MAX * 2]; | |
1129 | ||
1130 | sprintf (buf, "T%02x%s:", signal, event); | |
1131 | buf += strlen (buf); | |
1132 | ||
1133 | /* Encode pathname to hexified format. */ | |
1134 | bin2hex ((const gdb_byte *) status->value.execd_pathname, | |
1135 | hexified_pathname, | |
1136 | strlen (status->value.execd_pathname)); | |
1137 | ||
1138 | sprintf (buf, "%s;", hexified_pathname); | |
1139 | xfree (status->value.execd_pathname); | |
1140 | status->value.execd_pathname = NULL; | |
1141 | buf += strlen (buf); | |
1142 | } | |
65706a29 | 1143 | else if (status->kind == TARGET_WAITKIND_THREAD_CREATED |
c12a5089 | 1144 | && cs.report_thread_events) |
65706a29 PA |
1145 | { |
1146 | enum gdb_signal signal = GDB_SIGNAL_TRAP; | |
1147 | ||
1148 | sprintf (buf, "T%02xcreate:;", signal); | |
1149 | } | |
82075af2 JS |
1150 | else if (status->kind == TARGET_WAITKIND_SYSCALL_ENTRY |
1151 | || status->kind == TARGET_WAITKIND_SYSCALL_RETURN) | |
1152 | { | |
1153 | enum gdb_signal signal = GDB_SIGNAL_TRAP; | |
1154 | const char *event = (status->kind == TARGET_WAITKIND_SYSCALL_ENTRY | |
1155 | ? "syscall_entry" : "syscall_return"); | |
1156 | ||
1157 | sprintf (buf, "T%02x%s:%x;", signal, event, | |
1158 | status->value.syscall_number); | |
1159 | } | |
de0d863e DB |
1160 | else |
1161 | sprintf (buf, "T%02x", status->value.sig); | |
1162 | ||
5b1c542e | 1163 | buf += strlen (buf); |
e013ee27 | 1164 | |
0bfdf32f | 1165 | saved_thread = current_thread; |
e013ee27 | 1166 | |
75352e28 | 1167 | switch_to_thread (ptid); |
e013ee27 | 1168 | |
3aee8918 PA |
1169 | regp = current_target_desc ()->expedite_regs; |
1170 | ||
0bfdf32f | 1171 | regcache = get_thread_regcache (current_thread, 1); |
442ea881 | 1172 | |
5b1c542e PA |
1173 | if (the_target->stopped_by_watchpoint != NULL |
1174 | && (*the_target->stopped_by_watchpoint) ()) | |
1175 | { | |
1176 | CORE_ADDR addr; | |
1177 | int i; | |
c906108c | 1178 | |
29f9a567 | 1179 | memcpy (buf, "watch:", 6); |
5b1c542e | 1180 | buf += 6; |
0d62e5e8 | 1181 | |
5b1c542e | 1182 | addr = (*the_target->stopped_data_address) (); |
255e7678 | 1183 | |
5b1c542e PA |
1184 | /* Convert each byte of the address into two hexadecimal |
1185 | chars. Note that we take sizeof (void *) instead of | |
1186 | sizeof (addr); this is to avoid sending a 64-bit | |
1187 | address to a 32-bit GDB. */ | |
1188 | for (i = sizeof (void *) * 2; i > 0; i--) | |
1189 | *buf++ = tohex ((addr >> (i - 1) * 4) & 0xf); | |
1190 | *buf++ = ';'; | |
1191 | } | |
c12a5089 | 1192 | else if (cs.swbreak_feature && target_stopped_by_sw_breakpoint ()) |
1ec68e26 PA |
1193 | { |
1194 | sprintf (buf, "swbreak:;"); | |
1195 | buf += strlen (buf); | |
1196 | } | |
c12a5089 | 1197 | else if (cs.hwbreak_feature && target_stopped_by_hw_breakpoint ()) |
1ec68e26 PA |
1198 | { |
1199 | sprintf (buf, "hwbreak:;"); | |
1200 | buf += strlen (buf); | |
1201 | } | |
5b1c542e PA |
1202 | |
1203 | while (*regp) | |
1204 | { | |
3aee8918 | 1205 | buf = outreg (regcache, find_regno (regcache->tdesc, *regp), buf); |
5b1c542e PA |
1206 | regp ++; |
1207 | } | |
5472f405 | 1208 | *buf = '\0'; |
5b1c542e PA |
1209 | |
1210 | /* Formerly, if the debugger had not used any thread features | |
1211 | we would not burden it with a thread status response. This | |
1212 | was for the benefit of GDB 4.13 and older. However, in | |
1213 | recent GDB versions the check (``if (cont_thread != 0)'') | |
1214 | does not have the desired effect because of sillyness in | |
1215 | the way that the remote protocol handles specifying a | |
1216 | thread. Since thread support relies on qSymbol support | |
1217 | anyway, assume GDB can handle threads. */ | |
1218 | ||
1219 | if (using_threads && !disable_packet_Tthread) | |
1220 | { | |
1221 | /* This if (1) ought to be unnecessary. But remote_wait | |
1222 | in GDB will claim this event belongs to inferior_ptid | |
1223 | if we do not specify a thread, and there's no way for | |
1224 | gdbserver to know what inferior_ptid is. */ | |
c12a5089 | 1225 | if (1 || !ptid_equal (cs.general_thread, ptid)) |
5b1c542e | 1226 | { |
dc146f7c | 1227 | int core = -1; |
bd99dc85 PA |
1228 | /* In non-stop, don't change the general thread behind |
1229 | GDB's back. */ | |
1230 | if (!non_stop) | |
c12a5089 | 1231 | cs.general_thread = ptid; |
95954743 PA |
1232 | sprintf (buf, "thread:"); |
1233 | buf += strlen (buf); | |
1234 | buf = write_ptid (buf, ptid); | |
1235 | strcat (buf, ";"); | |
5b1c542e | 1236 | buf += strlen (buf); |
dc146f7c | 1237 | |
3e10640f YQ |
1238 | core = target_core_of_thread (ptid); |
1239 | ||
dc146f7c VP |
1240 | if (core != -1) |
1241 | { | |
1242 | sprintf (buf, "core:"); | |
1243 | buf += strlen (buf); | |
1244 | sprintf (buf, "%x", core); | |
1245 | strcat (buf, ";"); | |
1246 | buf += strlen (buf); | |
1247 | } | |
5b1c542e PA |
1248 | } |
1249 | } | |
1250 | ||
1251 | if (dlls_changed) | |
1252 | { | |
1253 | strcpy (buf, "library:;"); | |
1254 | buf += strlen (buf); | |
1255 | dlls_changed = 0; | |
1256 | } | |
1257 | ||
0bfdf32f | 1258 | current_thread = saved_thread; |
5b1c542e PA |
1259 | } |
1260 | break; | |
1261 | case TARGET_WAITKIND_EXITED: | |
c12a5089 | 1262 | if (cs.multi_process) |
95954743 PA |
1263 | sprintf (buf, "W%x;process:%x", |
1264 | status->value.integer, ptid_get_pid (ptid)); | |
1265 | else | |
1266 | sprintf (buf, "W%02x", status->value.integer); | |
5b1c542e PA |
1267 | break; |
1268 | case TARGET_WAITKIND_SIGNALLED: | |
c12a5089 | 1269 | if (cs.multi_process) |
95954743 PA |
1270 | sprintf (buf, "X%x;process:%x", |
1271 | status->value.sig, ptid_get_pid (ptid)); | |
1272 | else | |
1273 | sprintf (buf, "X%02x", status->value.sig); | |
5b1c542e | 1274 | break; |
65706a29 PA |
1275 | case TARGET_WAITKIND_THREAD_EXITED: |
1276 | sprintf (buf, "w%x;", status->value.integer); | |
1277 | buf += strlen (buf); | |
1278 | buf = write_ptid (buf, ptid); | |
1279 | break; | |
f2faf941 PA |
1280 | case TARGET_WAITKIND_NO_RESUMED: |
1281 | sprintf (buf, "N"); | |
1282 | break; | |
5b1c542e PA |
1283 | default: |
1284 | error ("unhandled waitkind"); | |
1285 | break; | |
c906108c | 1286 | } |
c906108c SS |
1287 | } |
1288 | ||
1289 | void | |
fba45db2 | 1290 | decode_m_packet (char *from, CORE_ADDR *mem_addr_ptr, unsigned int *len_ptr) |
c906108c SS |
1291 | { |
1292 | int i = 0, j = 0; | |
1293 | char ch; | |
1294 | *mem_addr_ptr = *len_ptr = 0; | |
1295 | ||
1296 | while ((ch = from[i++]) != ',') | |
1297 | { | |
1298 | *mem_addr_ptr = *mem_addr_ptr << 4; | |
1299 | *mem_addr_ptr |= fromhex (ch) & 0x0f; | |
1300 | } | |
1301 | ||
1302 | for (j = 0; j < 4; j++) | |
1303 | { | |
1304 | if ((ch = from[i++]) == 0) | |
1305 | break; | |
1306 | *len_ptr = *len_ptr << 4; | |
1307 | *len_ptr |= fromhex (ch) & 0x0f; | |
1308 | } | |
1309 | } | |
1310 | ||
1311 | void | |
fba45db2 | 1312 | decode_M_packet (char *from, CORE_ADDR *mem_addr_ptr, unsigned int *len_ptr, |
fa593d66 | 1313 | unsigned char **to_p) |
c906108c SS |
1314 | { |
1315 | int i = 0; | |
1316 | char ch; | |
1317 | *mem_addr_ptr = *len_ptr = 0; | |
1318 | ||
1319 | while ((ch = from[i++]) != ',') | |
1320 | { | |
1321 | *mem_addr_ptr = *mem_addr_ptr << 4; | |
1322 | *mem_addr_ptr |= fromhex (ch) & 0x0f; | |
1323 | } | |
1324 | ||
1325 | while ((ch = from[i++]) != ':') | |
1326 | { | |
1327 | *len_ptr = *len_ptr << 4; | |
1328 | *len_ptr |= fromhex (ch) & 0x0f; | |
1329 | } | |
1330 | ||
fa593d66 | 1331 | if (*to_p == NULL) |
224c3ddb | 1332 | *to_p = (unsigned char *) xmalloc (*len_ptr); |
fa593d66 | 1333 | |
a7191e8b | 1334 | hex2bin (&from[i++], *to_p, *len_ptr); |
c906108c | 1335 | } |
2f2893d9 | 1336 | |
01f9e8fa DJ |
1337 | int |
1338 | decode_X_packet (char *from, int packet_len, CORE_ADDR *mem_addr_ptr, | |
fa593d66 | 1339 | unsigned int *len_ptr, unsigned char **to_p) |
01f9e8fa DJ |
1340 | { |
1341 | int i = 0; | |
1342 | char ch; | |
1343 | *mem_addr_ptr = *len_ptr = 0; | |
1344 | ||
1345 | while ((ch = from[i++]) != ',') | |
1346 | { | |
1347 | *mem_addr_ptr = *mem_addr_ptr << 4; | |
1348 | *mem_addr_ptr |= fromhex (ch) & 0x0f; | |
1349 | } | |
1350 | ||
1351 | while ((ch = from[i++]) != ':') | |
1352 | { | |
1353 | *len_ptr = *len_ptr << 4; | |
1354 | *len_ptr |= fromhex (ch) & 0x0f; | |
1355 | } | |
1356 | ||
fa593d66 | 1357 | if (*to_p == NULL) |
224c3ddb | 1358 | *to_p = (unsigned char *) xmalloc (*len_ptr); |
fa593d66 | 1359 | |
01f9e8fa | 1360 | if (remote_unescape_input ((const gdb_byte *) &from[i], packet_len - i, |
fa593d66 | 1361 | *to_p, *len_ptr) != *len_ptr) |
01f9e8fa DJ |
1362 | return -1; |
1363 | ||
1364 | return 0; | |
1365 | } | |
1366 | ||
0e7f50da | 1367 | /* Decode a qXfer write request. */ |
d08aafef | 1368 | |
0e7f50da | 1369 | int |
d08aafef | 1370 | decode_xfer_write (char *buf, int packet_len, CORE_ADDR *offset, |
0e7f50da UW |
1371 | unsigned int *len, unsigned char *data) |
1372 | { | |
1373 | char ch; | |
d08aafef | 1374 | char *b = buf; |
0e7f50da UW |
1375 | |
1376 | /* Extract the offset. */ | |
1377 | *offset = 0; | |
1378 | while ((ch = *buf++) != ':') | |
1379 | { | |
1380 | *offset = *offset << 4; | |
1381 | *offset |= fromhex (ch) & 0x0f; | |
1382 | } | |
1383 | ||
1384 | /* Get encoded data. */ | |
d08aafef | 1385 | packet_len -= buf - b; |
0e7f50da UW |
1386 | *len = remote_unescape_input ((const gdb_byte *) buf, packet_len, |
1387 | data, packet_len); | |
1388 | return 0; | |
1389 | } | |
1390 | ||
08388c79 DE |
1391 | /* Decode the parameters of a qSearch:memory packet. */ |
1392 | ||
1393 | int | |
1394 | decode_search_memory_packet (const char *buf, int packet_len, | |
1395 | CORE_ADDR *start_addrp, | |
1396 | CORE_ADDR *search_space_lenp, | |
1397 | gdb_byte *pattern, unsigned int *pattern_lenp) | |
1398 | { | |
1399 | const char *p = buf; | |
1400 | ||
1401 | p = decode_address_to_semicolon (start_addrp, p); | |
1402 | p = decode_address_to_semicolon (search_space_lenp, p); | |
1403 | packet_len -= p - buf; | |
1404 | *pattern_lenp = remote_unescape_input ((const gdb_byte *) p, packet_len, | |
1405 | pattern, packet_len); | |
1406 | return 0; | |
1407 | } | |
1408 | ||
95954743 PA |
1409 | static void |
1410 | free_sym_cache (struct sym_cache *sym) | |
1411 | { | |
1412 | if (sym != NULL) | |
1413 | { | |
1414 | free (sym->name); | |
1415 | free (sym); | |
1416 | } | |
1417 | } | |
1418 | ||
1419 | void | |
1420 | clear_symbol_cache (struct sym_cache **symcache_p) | |
1421 | { | |
1422 | struct sym_cache *sym, *next; | |
1423 | ||
1424 | /* Check the cache first. */ | |
1425 | for (sym = *symcache_p; sym; sym = next) | |
1426 | { | |
1427 | next = sym->next; | |
1428 | free_sym_cache (sym); | |
1429 | } | |
1430 | ||
1431 | *symcache_p = NULL; | |
1432 | } | |
1433 | ||
9836d6ea PA |
1434 | /* Get the address of NAME, and return it in ADDRP if found. if |
1435 | MAY_ASK_GDB is false, assume symbol cache misses are failures. | |
fd500816 DJ |
1436 | Returns 1 if the symbol is found, 0 if it is not, -1 on error. */ |
1437 | ||
2f2893d9 | 1438 | int |
9836d6ea | 1439 | look_up_one_symbol (const char *name, CORE_ADDR *addrp, int may_ask_gdb) |
2f2893d9 | 1440 | { |
c12a5089 | 1441 | client_state &cs = get_client_state (); |
28170b88 | 1442 | char *p, *q; |
2f2893d9 | 1443 | int len; |
fd500816 | 1444 | struct sym_cache *sym; |
95954743 PA |
1445 | struct process_info *proc; |
1446 | ||
1447 | proc = current_process (); | |
fd500816 DJ |
1448 | |
1449 | /* Check the cache first. */ | |
95954743 | 1450 | for (sym = proc->symbol_cache; sym; sym = sym->next) |
fd500816 DJ |
1451 | if (strcmp (name, sym->name) == 0) |
1452 | { | |
1453 | *addrp = sym->addr; | |
1454 | return 1; | |
1455 | } | |
2f2893d9 | 1456 | |
9836d6ea PA |
1457 | /* It might not be an appropriate time to look up a symbol, |
1458 | e.g. while we're trying to fetch registers. */ | |
1459 | if (!may_ask_gdb) | |
ea025f5f DJ |
1460 | return 0; |
1461 | ||
2f2893d9 | 1462 | /* Send the request. */ |
c12a5089 SC |
1463 | strcpy (cs.own_buf, "qSymbol:"); |
1464 | bin2hex ((const gdb_byte *) name, cs.own_buf + strlen ("qSymbol:"), | |
971dc0b8 | 1465 | strlen (name)); |
c12a5089 | 1466 | if (putpkt (cs.own_buf) < 0) |
2f2893d9 DJ |
1467 | return -1; |
1468 | ||
1469 | /* FIXME: Eventually add buffer overflow checking (to getpkt?) */ | |
c12a5089 | 1470 | len = getpkt (cs.own_buf); |
2f2893d9 DJ |
1471 | if (len < 0) |
1472 | return -1; | |
1473 | ||
2bbe3cc1 DJ |
1474 | /* We ought to handle pretty much any packet at this point while we |
1475 | wait for the qSymbol "response". That requires re-entering the | |
1476 | main loop. For now, this is an adequate approximation; allow | |
28170b88 MK |
1477 | GDB to read from memory and handle 'v' packets (for vFile transfers) |
1478 | while it figures out the address of the symbol. */ | |
1479 | while (1) | |
2bbe3cc1 | 1480 | { |
c12a5089 | 1481 | if (cs.own_buf[0] == 'm') |
28170b88 MK |
1482 | { |
1483 | CORE_ADDR mem_addr; | |
1484 | unsigned char *mem_buf; | |
1485 | unsigned int mem_len; | |
1486 | ||
c12a5089 | 1487 | decode_m_packet (&cs.own_buf[1], &mem_addr, &mem_len); |
28170b88 MK |
1488 | mem_buf = (unsigned char *) xmalloc (mem_len); |
1489 | if (read_inferior_memory (mem_addr, mem_buf, mem_len) == 0) | |
c12a5089 | 1490 | bin2hex (mem_buf, cs.own_buf, mem_len); |
28170b88 | 1491 | else |
c12a5089 | 1492 | write_enn (cs.own_buf); |
28170b88 | 1493 | free (mem_buf); |
c12a5089 | 1494 | if (putpkt (cs.own_buf) < 0) |
28170b88 MK |
1495 | return -1; |
1496 | } | |
c12a5089 | 1497 | else if (cs.own_buf[0] == 'v') |
28170b88 MK |
1498 | { |
1499 | int new_len = -1; | |
c12a5089 | 1500 | handle_v_requests (cs.own_buf, len, &new_len); |
28170b88 | 1501 | if (new_len != -1) |
c12a5089 | 1502 | putpkt_binary (cs.own_buf, new_len); |
28170b88 | 1503 | else |
c12a5089 | 1504 | putpkt (cs.own_buf); |
28170b88 | 1505 | } |
2bbe3cc1 | 1506 | else |
28170b88 | 1507 | break; |
c12a5089 | 1508 | len = getpkt (cs.own_buf); |
2bbe3cc1 DJ |
1509 | if (len < 0) |
1510 | return -1; | |
1511 | } | |
1b3f6016 | 1512 | |
c12a5089 | 1513 | if (!startswith (cs.own_buf, "qSymbol:")) |
2f2893d9 | 1514 | { |
c12a5089 | 1515 | warning ("Malformed response to qSymbol, ignoring: %s\n", cs.own_buf); |
2f2893d9 DJ |
1516 | return -1; |
1517 | } | |
1518 | ||
c12a5089 | 1519 | p = cs.own_buf + strlen ("qSymbol:"); |
2f2893d9 DJ |
1520 | q = p; |
1521 | while (*q && *q != ':') | |
1522 | q++; | |
1523 | ||
1524 | /* Make sure we found a value for the symbol. */ | |
1525 | if (p == q || *q == '\0') | |
1526 | return 0; | |
1527 | ||
1528 | decode_address (addrp, p, q - p); | |
fd500816 DJ |
1529 | |
1530 | /* Save the symbol in our cache. */ | |
8d749320 | 1531 | sym = XNEW (struct sym_cache); |
bca929d3 | 1532 | sym->name = xstrdup (name); |
fd500816 | 1533 | sym->addr = *addrp; |
95954743 PA |
1534 | sym->next = proc->symbol_cache; |
1535 | proc->symbol_cache = sym; | |
fd500816 | 1536 | |
2f2893d9 DJ |
1537 | return 1; |
1538 | } | |
c74d0ad8 | 1539 | |
fa593d66 PA |
1540 | /* Relocate an instruction to execute at a different address. OLDLOC |
1541 | is the address in the inferior memory where the instruction to | |
1542 | relocate is currently at. On input, TO points to the destination | |
1543 | where we want the instruction to be copied (and possibly adjusted) | |
1544 | to. On output, it points to one past the end of the resulting | |
1545 | instruction(s). The effect of executing the instruction at TO | |
86a30030 | 1546 | shall be the same as if executing it at OLDLOC. For example, call |
fa593d66 PA |
1547 | instructions that implicitly push the return address on the stack |
1548 | should be adjusted to return to the instruction after OLDLOC; | |
1549 | relative branches, and other PC-relative instructions need the | |
1550 | offset adjusted; etc. Returns 0 on success, -1 on failure. */ | |
1551 | ||
1552 | int | |
1553 | relocate_instruction (CORE_ADDR *to, CORE_ADDR oldloc) | |
1554 | { | |
c12a5089 | 1555 | client_state &cs = get_client_state (); |
fa593d66 PA |
1556 | int len; |
1557 | ULONGEST written = 0; | |
1558 | ||
1559 | /* Send the request. */ | |
c12a5089 | 1560 | sprintf (cs.own_buf, "qRelocInsn:%s;%s", paddress (oldloc), |
fa593d66 | 1561 | paddress (*to)); |
c12a5089 | 1562 | if (putpkt (cs.own_buf) < 0) |
fa593d66 PA |
1563 | return -1; |
1564 | ||
1565 | /* FIXME: Eventually add buffer overflow checking (to getpkt?) */ | |
c12a5089 | 1566 | len = getpkt (cs.own_buf); |
fa593d66 PA |
1567 | if (len < 0) |
1568 | return -1; | |
1569 | ||
1570 | /* We ought to handle pretty much any packet at this point while we | |
1571 | wait for the qRelocInsn "response". That requires re-entering | |
1572 | the main loop. For now, this is an adequate approximation; allow | |
1573 | GDB to access memory. */ | |
c12a5089 | 1574 | while (cs.own_buf[0] == 'm' || cs.own_buf[0] == 'M' || cs.own_buf[0] == 'X') |
fa593d66 PA |
1575 | { |
1576 | CORE_ADDR mem_addr; | |
1577 | unsigned char *mem_buf = NULL; | |
1578 | unsigned int mem_len; | |
1579 | ||
c12a5089 | 1580 | if (cs.own_buf[0] == 'm') |
fa593d66 | 1581 | { |
c12a5089 | 1582 | decode_m_packet (&cs.own_buf[1], &mem_addr, &mem_len); |
224c3ddb | 1583 | mem_buf = (unsigned char *) xmalloc (mem_len); |
fa593d66 | 1584 | if (read_inferior_memory (mem_addr, mem_buf, mem_len) == 0) |
c12a5089 | 1585 | bin2hex (mem_buf, cs.own_buf, mem_len); |
fa593d66 | 1586 | else |
c12a5089 | 1587 | write_enn (cs.own_buf); |
fa593d66 | 1588 | } |
c12a5089 | 1589 | else if (cs.own_buf[0] == 'X') |
fa593d66 | 1590 | { |
c12a5089 | 1591 | if (decode_X_packet (&cs.own_buf[1], len - 1, &mem_addr, |
fa593d66 PA |
1592 | &mem_len, &mem_buf) < 0 |
1593 | || write_inferior_memory (mem_addr, mem_buf, mem_len) != 0) | |
c12a5089 | 1594 | write_enn (cs.own_buf); |
fa593d66 | 1595 | else |
c12a5089 | 1596 | write_ok (cs.own_buf); |
fa593d66 PA |
1597 | } |
1598 | else | |
1599 | { | |
c12a5089 | 1600 | decode_M_packet (&cs.own_buf[1], &mem_addr, &mem_len, &mem_buf); |
fa593d66 | 1601 | if (write_inferior_memory (mem_addr, mem_buf, mem_len) == 0) |
c12a5089 | 1602 | write_ok (cs.own_buf); |
fa593d66 | 1603 | else |
c12a5089 | 1604 | write_enn (cs.own_buf); |
fa593d66 PA |
1605 | } |
1606 | free (mem_buf); | |
c12a5089 | 1607 | if (putpkt (cs.own_buf) < 0) |
fa593d66 | 1608 | return -1; |
c12a5089 | 1609 | len = getpkt (cs.own_buf); |
fa593d66 PA |
1610 | if (len < 0) |
1611 | return -1; | |
1612 | } | |
1613 | ||
c12a5089 | 1614 | if (cs.own_buf[0] == 'E') |
fa593d66 PA |
1615 | { |
1616 | warning ("An error occurred while relocating an instruction: %s\n", | |
c12a5089 | 1617 | cs.own_buf); |
fa593d66 PA |
1618 | return -1; |
1619 | } | |
1620 | ||
c12a5089 | 1621 | if (!startswith (cs.own_buf, "qRelocInsn:")) |
fa593d66 PA |
1622 | { |
1623 | warning ("Malformed response to qRelocInsn, ignoring: %s\n", | |
c12a5089 | 1624 | cs.own_buf); |
fa593d66 PA |
1625 | return -1; |
1626 | } | |
1627 | ||
c12a5089 | 1628 | unpack_varlen_hex (cs.own_buf + strlen ("qRelocInsn:"), &written); |
fa593d66 PA |
1629 | |
1630 | *to += written; | |
1631 | return 0; | |
1632 | } | |
1633 | ||
c74d0ad8 | 1634 | void |
bce7165d | 1635 | monitor_output (const char *msg) |
c74d0ad8 | 1636 | { |
0a822afb | 1637 | int len = strlen (msg); |
224c3ddb | 1638 | char *buf = (char *) xmalloc (len * 2 + 2); |
c74d0ad8 DJ |
1639 | |
1640 | buf[0] = 'O'; | |
971dc0b8 | 1641 | bin2hex ((const gdb_byte *) msg, buf + 1, len); |
c74d0ad8 DJ |
1642 | |
1643 | putpkt (buf); | |
1644 | free (buf); | |
1645 | } | |
255e7678 | 1646 | |
0fb4aa4b | 1647 | #endif |