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Commit | Line | Data |
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c906108c | 1 | /* Generic serial interface routines |
4fcf66da | 2 | |
6aba47ca DJ |
3 | Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
4 | 2002, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. | |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
20 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
c906108c SS |
22 | |
23 | #include "defs.h" | |
24 | #include <ctype.h> | |
25 | #include "serial.h" | |
26 | #include "gdb_string.h" | |
27 | #include "gdbcmd.h" | |
28 | ||
c2c6d25f | 29 | extern void _initialize_serial (void); |
392a587b | 30 | |
2acceee2 JM |
31 | /* Is serial being debugged? */ |
32 | ||
33 | static int global_serial_debug_p; | |
34 | ||
c906108c SS |
35 | /* Linked list of serial I/O handlers */ |
36 | ||
37 | static struct serial_ops *serial_ops_list = NULL; | |
38 | ||
39 | /* This is the last serial stream opened. Used by connect command. */ | |
40 | ||
819cc324 | 41 | static struct serial *last_serial_opened = NULL; |
c906108c SS |
42 | |
43 | /* Pointer to list of scb's. */ | |
44 | ||
819cc324 | 45 | static struct serial *scb_base; |
c906108c SS |
46 | |
47 | /* Non-NULL gives filename which contains a recording of the remote session, | |
48 | suitable for playback by gdbserver. */ | |
49 | ||
50 | static char *serial_logfile = NULL; | |
d9fcf2fb | 51 | static struct ui_file *serial_logfp = NULL; |
c906108c | 52 | |
c2c6d25f | 53 | static struct serial_ops *serial_interface_lookup (char *); |
d9fcf2fb | 54 | static void serial_logchar (struct ui_file *stream, int ch_type, int ch, int timeout); |
53904c9e AC |
55 | static const char logbase_hex[] = "hex"; |
56 | static const char logbase_octal[] = "octal"; | |
57 | static const char logbase_ascii[] = "ascii"; | |
58 | static const char *logbase_enums[] = | |
c5aa993b | 59 | {logbase_hex, logbase_octal, logbase_ascii, NULL}; |
53904c9e | 60 | static const char *serial_logbase = logbase_ascii; |
c906108c | 61 | \f |
c5aa993b | 62 | |
c906108c SS |
63 | static int serial_current_type = 0; |
64 | ||
65 | /* Log char CH of type CHTYPE, with TIMEOUT */ | |
66 | ||
67 | /* Define bogus char to represent a BREAK. Should be careful to choose a value | |
68 | that can't be confused with a normal char, or an error code. */ | |
69 | #define SERIAL_BREAK 1235 | |
70 | ||
71 | static void | |
d9fcf2fb | 72 | serial_logchar (struct ui_file *stream, int ch_type, int ch, int timeout) |
c906108c SS |
73 | { |
74 | if (ch_type != serial_current_type) | |
75 | { | |
2acceee2 | 76 | fprintf_unfiltered (stream, "\n%c ", ch_type); |
c906108c SS |
77 | serial_current_type = ch_type; |
78 | } | |
79 | ||
80 | if (serial_logbase != logbase_ascii) | |
2acceee2 | 81 | fputc_unfiltered (' ', stream); |
c906108c SS |
82 | |
83 | switch (ch) | |
84 | { | |
85 | case SERIAL_TIMEOUT: | |
2acceee2 | 86 | fprintf_unfiltered (stream, "<Timeout: %d seconds>", timeout); |
c906108c SS |
87 | return; |
88 | case SERIAL_ERROR: | |
2acceee2 | 89 | fprintf_unfiltered (stream, "<Error: %s>", safe_strerror (errno)); |
c906108c SS |
90 | return; |
91 | case SERIAL_EOF: | |
2acceee2 | 92 | fputs_unfiltered ("<Eof>", stream); |
c906108c SS |
93 | return; |
94 | case SERIAL_BREAK: | |
2acceee2 | 95 | fputs_unfiltered ("<Break>", stream); |
c906108c SS |
96 | return; |
97 | default: | |
98 | if (serial_logbase == logbase_hex) | |
2acceee2 | 99 | fprintf_unfiltered (stream, "%02x", ch & 0xff); |
c906108c | 100 | else if (serial_logbase == logbase_octal) |
2acceee2 | 101 | fprintf_unfiltered (stream, "%03o", ch & 0xff); |
c906108c SS |
102 | else |
103 | switch (ch) | |
104 | { | |
c5aa993b | 105 | case '\\': |
2acceee2 | 106 | fputs_unfiltered ("\\\\", stream); |
c5aa993b JM |
107 | break; |
108 | case '\b': | |
2acceee2 | 109 | fputs_unfiltered ("\\b", stream); |
c5aa993b JM |
110 | break; |
111 | case '\f': | |
2acceee2 | 112 | fputs_unfiltered ("\\f", stream); |
c5aa993b JM |
113 | break; |
114 | case '\n': | |
2acceee2 | 115 | fputs_unfiltered ("\\n", stream); |
c5aa993b JM |
116 | break; |
117 | case '\r': | |
2acceee2 | 118 | fputs_unfiltered ("\\r", stream); |
c5aa993b JM |
119 | break; |
120 | case '\t': | |
2acceee2 | 121 | fputs_unfiltered ("\\t", stream); |
c5aa993b JM |
122 | break; |
123 | case '\v': | |
2acceee2 | 124 | fputs_unfiltered ("\\v", stream); |
c5aa993b JM |
125 | break; |
126 | default: | |
2acceee2 | 127 | fprintf_unfiltered (stream, isprint (ch) ? "%c" : "\\x%02x", ch & 0xFF); |
c5aa993b | 128 | break; |
c906108c SS |
129 | } |
130 | } | |
131 | } | |
132 | ||
133 | void | |
c2c6d25f | 134 | serial_log_command (const char *cmd) |
c906108c SS |
135 | { |
136 | if (!serial_logfp) | |
137 | return; | |
138 | ||
139 | serial_current_type = 'c'; | |
140 | ||
141 | fputs_unfiltered ("\nc ", serial_logfp); | |
142 | fputs_unfiltered (cmd, serial_logfp); | |
143 | ||
144 | /* Make sure that the log file is as up-to-date as possible, | |
145 | in case we are getting ready to dump core or something. */ | |
146 | gdb_flush (serial_logfp); | |
147 | } | |
148 | ||
c2c6d25f | 149 | \f |
c906108c | 150 | static struct serial_ops * |
c2c6d25f | 151 | serial_interface_lookup (char *name) |
c906108c SS |
152 | { |
153 | struct serial_ops *ops; | |
154 | ||
155 | for (ops = serial_ops_list; ops; ops = ops->next) | |
156 | if (strcmp (name, ops->name) == 0) | |
157 | return ops; | |
158 | ||
159 | return NULL; | |
160 | } | |
161 | ||
162 | void | |
c2c6d25f | 163 | serial_add_interface (struct serial_ops *optable) |
c906108c SS |
164 | { |
165 | optable->next = serial_ops_list; | |
166 | serial_ops_list = optable; | |
167 | } | |
168 | ||
169 | /* Open up a device or a network socket, depending upon the syntax of NAME. */ | |
170 | ||
819cc324 | 171 | struct serial * |
c2c6d25f | 172 | serial_open (const char *name) |
c906108c | 173 | { |
819cc324 | 174 | struct serial *scb; |
c906108c | 175 | struct serial_ops *ops; |
c2c6d25f | 176 | const char *open_name = name; |
c906108c SS |
177 | |
178 | for (scb = scb_base; scb; scb = scb->next) | |
179 | if (scb->name && strcmp (scb->name, name) == 0) | |
180 | { | |
181 | scb->refcnt++; | |
182 | return scb; | |
183 | } | |
184 | ||
50a9e2f1 | 185 | if (strcmp (name, "pc") == 0) |
c906108c | 186 | ops = serial_interface_lookup ("pc"); |
c906108c SS |
187 | else if (strncmp (name, "lpt", 3) == 0) |
188 | ops = serial_interface_lookup ("parallel"); | |
43e526b9 | 189 | else if (strncmp (name, "|", 1) == 0) |
c2c6d25f JM |
190 | { |
191 | ops = serial_interface_lookup ("pipe"); | |
8b9e3a15 VP |
192 | /* Discard ``|'' and any space before the command itself. */ |
193 | ++open_name; | |
194 | while (isspace (*open_name)) | |
195 | ++open_name; | |
c2c6d25f | 196 | } |
2821caf1 JB |
197 | /* Check for a colon, suggesting an IP address/port pair. |
198 | Do this *after* checking for all the interesting prefixes. We | |
199 | don't want to constrain the syntax of what can follow them. */ | |
200 | else if (strchr (name, ':')) | |
201 | ops = serial_interface_lookup ("tcp"); | |
c906108c SS |
202 | else |
203 | ops = serial_interface_lookup ("hardwire"); | |
204 | ||
205 | if (!ops) | |
206 | return NULL; | |
207 | ||
65e2f740 | 208 | scb = XMALLOC (struct serial); |
c906108c SS |
209 | |
210 | scb->ops = ops; | |
211 | ||
212 | scb->bufcnt = 0; | |
213 | scb->bufp = scb->buf; | |
214 | ||
c2c6d25f | 215 | if (scb->ops->open (scb, open_name)) |
c906108c | 216 | { |
b8c9b27d | 217 | xfree (scb); |
c906108c SS |
218 | return NULL; |
219 | } | |
220 | ||
4fcf66da | 221 | scb->name = xstrdup (name); |
c906108c SS |
222 | scb->next = scb_base; |
223 | scb->refcnt = 1; | |
2acceee2 JM |
224 | scb->debug_p = 0; |
225 | scb->async_state = 0; | |
c2c6d25f JM |
226 | scb->async_handler = NULL; |
227 | scb->async_context = NULL; | |
c906108c SS |
228 | scb_base = scb; |
229 | ||
230 | last_serial_opened = scb; | |
231 | ||
232 | if (serial_logfile != NULL) | |
233 | { | |
234 | serial_logfp = gdb_fopen (serial_logfile, "w"); | |
235 | if (serial_logfp == NULL) | |
236 | perror_with_name (serial_logfile); | |
237 | } | |
238 | ||
239 | return scb; | |
240 | } | |
241 | ||
0ea3f30e DJ |
242 | /* Return the open serial device for FD, if found, or NULL if FD |
243 | is not already opened. */ | |
244 | ||
245 | struct serial * | |
246 | serial_for_fd (int fd) | |
247 | { | |
248 | struct serial *scb; | |
249 | struct serial_ops *ops; | |
250 | ||
251 | for (scb = scb_base; scb; scb = scb->next) | |
252 | if (scb->fd == fd) | |
253 | return scb; | |
254 | ||
255 | return NULL; | |
256 | } | |
257 | ||
819cc324 | 258 | struct serial * |
c2c6d25f | 259 | serial_fdopen (const int fd) |
c906108c | 260 | { |
819cc324 | 261 | struct serial *scb; |
c906108c SS |
262 | struct serial_ops *ops; |
263 | ||
264 | for (scb = scb_base; scb; scb = scb->next) | |
265 | if (scb->fd == fd) | |
266 | { | |
267 | scb->refcnt++; | |
268 | return scb; | |
269 | } | |
270 | ||
0ea3f30e DJ |
271 | ops = serial_interface_lookup ("terminal"); |
272 | if (!ops) | |
273 | ops = serial_interface_lookup ("hardwire"); | |
c906108c SS |
274 | |
275 | if (!ops) | |
276 | return NULL; | |
277 | ||
0ea3f30e | 278 | scb = XCALLOC (1, struct serial); |
c906108c SS |
279 | |
280 | scb->ops = ops; | |
281 | ||
282 | scb->bufcnt = 0; | |
283 | scb->bufp = scb->buf; | |
284 | ||
285 | scb->fd = fd; | |
286 | ||
287 | scb->name = NULL; | |
288 | scb->next = scb_base; | |
289 | scb->refcnt = 1; | |
2acceee2 JM |
290 | scb->debug_p = 0; |
291 | scb->async_state = 0; | |
c2c6d25f JM |
292 | scb->async_handler = NULL; |
293 | scb->async_context = NULL; | |
c906108c SS |
294 | scb_base = scb; |
295 | ||
296 | last_serial_opened = scb; | |
297 | ||
298 | return scb; | |
299 | } | |
300 | ||
c2c6d25f | 301 | static void |
819cc324 | 302 | do_serial_close (struct serial *scb, int really_close) |
c906108c | 303 | { |
819cc324 | 304 | struct serial *tmp_scb; |
c906108c SS |
305 | |
306 | last_serial_opened = NULL; | |
307 | ||
308 | if (serial_logfp) | |
309 | { | |
310 | fputs_unfiltered ("\nEnd of log\n", serial_logfp); | |
311 | serial_current_type = 0; | |
312 | ||
313 | /* XXX - What if serial_logfp == gdb_stdout or gdb_stderr? */ | |
d9fcf2fb | 314 | ui_file_delete (serial_logfp); |
c906108c SS |
315 | serial_logfp = NULL; |
316 | } | |
317 | ||
318 | /* This is bogus. It's not our fault if you pass us a bad scb...! Rob, you | |
319 | should fix your code instead. */ | |
320 | ||
321 | if (!scb) | |
322 | return; | |
323 | ||
324 | scb->refcnt--; | |
325 | if (scb->refcnt > 0) | |
326 | return; | |
327 | ||
c2c6d25f JM |
328 | /* ensure that the FD has been taken out of async mode */ |
329 | if (scb->async_handler != NULL) | |
330 | serial_async (scb, NULL, NULL); | |
331 | ||
c906108c SS |
332 | if (really_close) |
333 | scb->ops->close (scb); | |
334 | ||
335 | if (scb->name) | |
b8c9b27d | 336 | xfree (scb->name); |
c906108c SS |
337 | |
338 | if (scb_base == scb) | |
339 | scb_base = scb_base->next; | |
340 | else | |
341 | for (tmp_scb = scb_base; tmp_scb; tmp_scb = tmp_scb->next) | |
342 | { | |
343 | if (tmp_scb->next != scb) | |
344 | continue; | |
345 | ||
346 | tmp_scb->next = tmp_scb->next->next; | |
347 | break; | |
348 | } | |
349 | ||
b8c9b27d | 350 | xfree (scb); |
c906108c SS |
351 | } |
352 | ||
c2c6d25f | 353 | void |
819cc324 | 354 | serial_close (struct serial *scb) |
c2c6d25f JM |
355 | { |
356 | do_serial_close (scb, 1); | |
357 | } | |
358 | ||
359 | void | |
819cc324 | 360 | serial_un_fdopen (struct serial *scb) |
c2c6d25f JM |
361 | { |
362 | do_serial_close (scb, 0); | |
363 | } | |
364 | ||
365 | int | |
819cc324 | 366 | serial_readchar (struct serial *scb, int timeout) |
c2c6d25f JM |
367 | { |
368 | int ch; | |
369 | ||
2df3850c JM |
370 | /* FIXME: cagney/1999-10-11: Don't enable this check until the ASYNC |
371 | code is finished. */ | |
2cd58942 | 372 | if (0 && serial_is_async_p (scb) && timeout < 0) |
8e65ff28 | 373 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 374 | _("serial_readchar: blocking read in async mode")); |
2df3850c | 375 | |
c2c6d25f JM |
376 | ch = scb->ops->readchar (scb, timeout); |
377 | if (serial_logfp != NULL) | |
378 | { | |
2acceee2 | 379 | serial_logchar (serial_logfp, 'r', ch, timeout); |
c2c6d25f JM |
380 | |
381 | /* Make sure that the log file is as up-to-date as possible, | |
382 | in case we are getting ready to dump core or something. */ | |
383 | gdb_flush (serial_logfp); | |
384 | } | |
2cd58942 | 385 | if (serial_debug_p (scb)) |
2acceee2 JM |
386 | { |
387 | fprintf_unfiltered (gdb_stdlog, "["); | |
388 | serial_logchar (gdb_stdlog, 'r', ch, timeout); | |
389 | fprintf_unfiltered (gdb_stdlog, "]"); | |
390 | gdb_flush (gdb_stdlog); | |
391 | } | |
c2c6d25f JM |
392 | |
393 | return (ch); | |
394 | } | |
395 | ||
396 | int | |
819cc324 | 397 | serial_write (struct serial *scb, const char *str, int len) |
c2c6d25f JM |
398 | { |
399 | if (serial_logfp != NULL) | |
400 | { | |
401 | int count; | |
402 | ||
403 | for (count = 0; count < len; count++) | |
2acceee2 | 404 | serial_logchar (serial_logfp, 'w', str[count] & 0xff, 0); |
c2c6d25f JM |
405 | |
406 | /* Make sure that the log file is as up-to-date as possible, | |
407 | in case we are getting ready to dump core or something. */ | |
408 | gdb_flush (serial_logfp); | |
409 | } | |
410 | ||
411 | return (scb->ops->write (scb, str, len)); | |
412 | } | |
413 | ||
414 | void | |
819cc324 | 415 | serial_printf (struct serial *desc, const char *format,...) |
c2c6d25f JM |
416 | { |
417 | va_list args; | |
418 | char *buf; | |
419 | va_start (args, format); | |
420 | ||
e623b504 | 421 | buf = xstrvprintf (format, args); |
2cd58942 | 422 | serial_write (desc, buf, strlen (buf)); |
c2c6d25f | 423 | |
b8c9b27d | 424 | xfree (buf); |
c2c6d25f JM |
425 | va_end (args); |
426 | } | |
427 | ||
428 | int | |
819cc324 | 429 | serial_drain_output (struct serial *scb) |
c2c6d25f JM |
430 | { |
431 | return scb->ops->drain_output (scb); | |
432 | } | |
433 | ||
434 | int | |
819cc324 | 435 | serial_flush_output (struct serial *scb) |
c2c6d25f JM |
436 | { |
437 | return scb->ops->flush_output (scb); | |
438 | } | |
439 | ||
440 | int | |
819cc324 | 441 | serial_flush_input (struct serial *scb) |
c2c6d25f JM |
442 | { |
443 | return scb->ops->flush_input (scb); | |
444 | } | |
445 | ||
446 | int | |
819cc324 | 447 | serial_send_break (struct serial *scb) |
c2c6d25f JM |
448 | { |
449 | if (serial_logfp != NULL) | |
2acceee2 | 450 | serial_logchar (serial_logfp, 'w', SERIAL_BREAK, 0); |
c2c6d25f JM |
451 | |
452 | return (scb->ops->send_break (scb)); | |
453 | } | |
454 | ||
455 | void | |
819cc324 | 456 | serial_raw (struct serial *scb) |
c2c6d25f JM |
457 | { |
458 | scb->ops->go_raw (scb); | |
459 | } | |
460 | ||
461 | serial_ttystate | |
819cc324 | 462 | serial_get_tty_state (struct serial *scb) |
c2c6d25f JM |
463 | { |
464 | return scb->ops->get_tty_state (scb); | |
465 | } | |
466 | ||
467 | int | |
819cc324 | 468 | serial_set_tty_state (struct serial *scb, serial_ttystate ttystate) |
c2c6d25f JM |
469 | { |
470 | return scb->ops->set_tty_state (scb, ttystate); | |
471 | } | |
472 | ||
473 | void | |
819cc324 | 474 | serial_print_tty_state (struct serial *scb, |
c2c6d25f | 475 | serial_ttystate ttystate, |
d9fcf2fb | 476 | struct ui_file *stream) |
c2c6d25f JM |
477 | { |
478 | scb->ops->print_tty_state (scb, ttystate, stream); | |
479 | } | |
480 | ||
481 | int | |
819cc324 | 482 | serial_noflush_set_tty_state (struct serial *scb, |
c2c6d25f JM |
483 | serial_ttystate new_ttystate, |
484 | serial_ttystate old_ttystate) | |
485 | { | |
486 | return scb->ops->noflush_set_tty_state (scb, new_ttystate, old_ttystate); | |
487 | } | |
488 | ||
489 | int | |
819cc324 | 490 | serial_setbaudrate (struct serial *scb, int rate) |
c2c6d25f JM |
491 | { |
492 | return scb->ops->setbaudrate (scb, rate); | |
493 | } | |
494 | ||
495 | int | |
819cc324 | 496 | serial_setstopbits (struct serial *scb, int num) |
c2c6d25f JM |
497 | { |
498 | return scb->ops->setstopbits (scb, num); | |
499 | } | |
500 | ||
501 | int | |
819cc324 | 502 | serial_can_async_p (struct serial *scb) |
c2c6d25f JM |
503 | { |
504 | return (scb->ops->async != NULL); | |
505 | } | |
506 | ||
507 | int | |
819cc324 | 508 | serial_is_async_p (struct serial *scb) |
c2c6d25f JM |
509 | { |
510 | return (scb->ops->async != NULL) && (scb->async_handler != NULL); | |
511 | } | |
512 | ||
513 | void | |
819cc324 | 514 | serial_async (struct serial *scb, |
c2c6d25f JM |
515 | serial_event_ftype *handler, |
516 | void *context) | |
517 | { | |
518 | /* Only change mode if there is a need. */ | |
519 | if ((scb->async_handler == NULL) | |
520 | != (handler == NULL)) | |
521 | scb->ops->async (scb, handler != NULL); | |
522 | scb->async_handler = handler; | |
523 | scb->async_context = context; | |
524 | } | |
525 | ||
526 | int | |
819cc324 | 527 | deprecated_serial_fd (struct serial *scb) |
c2c6d25f JM |
528 | { |
529 | /* FIXME: should this output a warning that deprecated code is being | |
530 | called? */ | |
531 | if (scb->fd < 0) | |
532 | { | |
8e65ff28 | 533 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 534 | _("serial: FD not valid")); |
c2c6d25f JM |
535 | } |
536 | return scb->fd; /* sigh */ | |
537 | } | |
538 | ||
2acceee2 | 539 | void |
819cc324 | 540 | serial_debug (struct serial *scb, int debug_p) |
2acceee2 JM |
541 | { |
542 | scb->debug_p = debug_p; | |
543 | } | |
544 | ||
545 | int | |
819cc324 | 546 | serial_debug_p (struct serial *scb) |
2acceee2 JM |
547 | { |
548 | return scb->debug_p || global_serial_debug_p; | |
549 | } | |
550 | ||
0ea3f30e DJ |
551 | #ifdef USE_WIN32API |
552 | void | |
553 | serial_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except) | |
554 | { | |
555 | if (scb->ops->wait_handle) | |
556 | scb->ops->wait_handle (scb, read, except); | |
557 | else | |
558 | { | |
559 | *read = (HANDLE) _get_osfhandle (scb->fd); | |
560 | *except = NULL; | |
561 | } | |
562 | } | |
c3e2b812 DJ |
563 | |
564 | void | |
565 | serial_done_wait_handle (struct serial *scb) | |
566 | { | |
567 | if (scb->ops->done_wait_handle) | |
568 | scb->ops->done_wait_handle (scb); | |
569 | } | |
0ea3f30e | 570 | #endif |
2acceee2 | 571 | |
c906108c | 572 | #if 0 |
819cc324 AC |
573 | /* The connect command is #if 0 because I hadn't thought of an elegant |
574 | way to wait for I/O on two `struct serial *'s simultaneously. Two | |
575 | solutions came to mind: | |
c906108c | 576 | |
c5aa993b JM |
577 | 1) Fork, and have have one fork handle the to user direction, |
578 | and have the other hand the to target direction. This | |
579 | obviously won't cut it for MSDOS. | |
c906108c | 580 | |
c5aa993b JM |
581 | 2) Use something like select. This assumes that stdin and |
582 | the target side can both be waited on via the same | |
583 | mechanism. This may not be true for DOS, if GDB is | |
584 | talking to the target via a TCP socket. | |
819cc324 | 585 | -grossman, 8 Jun 93 */ |
c906108c SS |
586 | |
587 | /* Connect the user directly to the remote system. This command acts just like | |
588 | the 'cu' or 'tip' command. Use <CR>~. or <CR>~^D to break out. */ | |
589 | ||
819cc324 | 590 | static struct serial *tty_desc; /* Controlling terminal */ |
c906108c SS |
591 | |
592 | static void | |
c2c6d25f | 593 | cleanup_tty (serial_ttystate ttystate) |
c906108c SS |
594 | { |
595 | printf_unfiltered ("\r\n[Exiting connect mode]\r\n"); | |
2cd58942 | 596 | serial_set_tty_state (tty_desc, ttystate); |
b8c9b27d | 597 | xfree (ttystate); |
2cd58942 | 598 | serial_close (tty_desc); |
c906108c SS |
599 | } |
600 | ||
601 | static void | |
c2c6d25f | 602 | connect_command (char *args, int fromtty) |
c906108c SS |
603 | { |
604 | int c; | |
605 | char cur_esc = 0; | |
606 | serial_ttystate ttystate; | |
819cc324 | 607 | struct serial *port_desc; /* TTY port */ |
c906108c | 608 | |
c5aa993b | 609 | dont_repeat (); |
c906108c SS |
610 | |
611 | if (args) | |
c5aa993b JM |
612 | fprintf_unfiltered (gdb_stderr, "This command takes no args. They have been ignored.\n"); |
613 | ||
614 | printf_unfiltered ("[Entering connect mode. Use ~. or ~^D to escape]\n"); | |
c906108c | 615 | |
2cd58942 | 616 | tty_desc = serial_fdopen (0); |
c906108c SS |
617 | port_desc = last_serial_opened; |
618 | ||
2cd58942 | 619 | ttystate = serial_get_tty_state (tty_desc); |
c906108c | 620 | |
2cd58942 AC |
621 | serial_raw (tty_desc); |
622 | serial_raw (port_desc); | |
c906108c SS |
623 | |
624 | make_cleanup (cleanup_tty, ttystate); | |
625 | ||
626 | while (1) | |
627 | { | |
628 | int mask; | |
629 | ||
2cd58942 | 630 | mask = serial_wait_2 (tty_desc, port_desc, -1); |
c906108c SS |
631 | |
632 | if (mask & 2) | |
633 | { /* tty input */ | |
634 | char cx; | |
635 | ||
636 | while (1) | |
637 | { | |
2cd58942 | 638 | c = serial_readchar (tty_desc, 0); |
c906108c SS |
639 | |
640 | if (c == SERIAL_TIMEOUT) | |
c5aa993b | 641 | break; |
c906108c SS |
642 | |
643 | if (c < 0) | |
e2e0b3e5 | 644 | perror_with_name (_("connect")); |
c906108c SS |
645 | |
646 | cx = c; | |
2cd58942 | 647 | serial_write (port_desc, &cx, 1); |
c906108c SS |
648 | |
649 | switch (cur_esc) | |
650 | { | |
651 | case 0: | |
652 | if (c == '\r') | |
653 | cur_esc = c; | |
654 | break; | |
655 | case '\r': | |
656 | if (c == '~') | |
657 | cur_esc = c; | |
658 | else | |
659 | cur_esc = 0; | |
660 | break; | |
661 | case '~': | |
662 | if (c == '.' || c == '\004') | |
663 | return; | |
664 | else | |
665 | cur_esc = 0; | |
666 | } | |
667 | } | |
668 | } | |
669 | ||
670 | if (mask & 1) | |
671 | { /* Port input */ | |
672 | char cx; | |
673 | ||
674 | while (1) | |
675 | { | |
2cd58942 | 676 | c = serial_readchar (port_desc, 0); |
c906108c SS |
677 | |
678 | if (c == SERIAL_TIMEOUT) | |
c5aa993b | 679 | break; |
c906108c SS |
680 | |
681 | if (c < 0) | |
e2e0b3e5 | 682 | perror_with_name (_("connect")); |
c906108c SS |
683 | |
684 | cx = c; | |
685 | ||
2cd58942 | 686 | serial_write (tty_desc, &cx, 1); |
c906108c SS |
687 | } |
688 | } | |
689 | } | |
690 | } | |
691 | #endif /* 0 */ | |
692 | ||
e3abfe1d AC |
693 | /* Serial set/show framework. */ |
694 | ||
695 | static struct cmd_list_element *serial_set_cmdlist; | |
696 | static struct cmd_list_element *serial_show_cmdlist; | |
697 | ||
698 | static void | |
699 | serial_set_cmd (char *args, int from_tty) | |
700 | { | |
701 | printf_unfiltered ("\"set serial\" must be followed by the name of a command.\n"); | |
702 | help_list (serial_set_cmdlist, "set serial ", -1, gdb_stdout); | |
703 | } | |
704 | ||
705 | static void | |
706 | serial_show_cmd (char *args, int from_tty) | |
707 | { | |
708 | cmd_show_list (serial_show_cmdlist, from_tty, ""); | |
709 | } | |
710 | ||
711 | ||
c906108c | 712 | void |
c2c6d25f | 713 | _initialize_serial (void) |
c906108c SS |
714 | { |
715 | #if 0 | |
1bedd215 AC |
716 | add_com ("connect", class_obscure, connect_command, _("\ |
717 | Connect the terminal directly up to the command monitor.\n\ | |
718 | Use <CR>~. or <CR>~^D to break out.")); | |
c906108c SS |
719 | #endif /* 0 */ |
720 | ||
1bedd215 AC |
721 | add_prefix_cmd ("serial", class_maintenance, serial_set_cmd, _("\ |
722 | Set default serial/parallel port configuration."), | |
e3abfe1d AC |
723 | &serial_set_cmdlist, "set serial ", |
724 | 0/*allow-unknown*/, | |
725 | &setlist); | |
726 | ||
1bedd215 AC |
727 | add_prefix_cmd ("serial", class_maintenance, serial_show_cmd, _("\ |
728 | Show default serial/parallel port configuration."), | |
e3abfe1d AC |
729 | &serial_show_cmdlist, "show serial ", |
730 | 0/*allow-unknown*/, | |
731 | &showlist); | |
732 | ||
f397e303 AC |
733 | add_setshow_filename_cmd ("remotelogfile", no_class, &serial_logfile, _("\ |
734 | Set filename for remote session recording."), _("\ | |
735 | Show filename for remote session recording."), _("\ | |
c906108c | 736 | This file is used to record the remote session for future playback\n\ |
f397e303 AC |
737 | by gdbserver."), |
738 | NULL, | |
739 | NULL, /* FIXME: i18n: */ | |
740 | &setlist, &showlist); | |
c906108c | 741 | |
7ab04401 AC |
742 | add_setshow_enum_cmd ("remotelogbase", no_class, logbase_enums, |
743 | &serial_logbase, _("\ | |
744 | Set numerical base for remote session logging"), _("\ | |
745 | Show numerical base for remote session logging"), NULL, | |
746 | NULL, | |
747 | NULL, /* FIXME: i18n: */ | |
748 | &setlist, &showlist); | |
2acceee2 | 749 | |
85c07804 AC |
750 | add_setshow_zinteger_cmd ("serial", class_maintenance, |
751 | &global_serial_debug_p, _("\ | |
752 | Set serial debugging."), _("\ | |
753 | Show serial debugging."), _("\ | |
754 | When non-zero, serial port debugging is enabled."), | |
755 | NULL, | |
756 | NULL, /* FIXME: i18n: */ | |
757 | &setdebuglist, &showdebuglist); | |
c906108c | 758 | } |