Commit | Line | Data |
---|---|---|
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; | |
65cc4390 | 214 | scb->error_fd = -1; |
c906108c | 215 | |
652aaa24 JK |
216 | /* `...->open (...)' would get expanded by an the open(2) syscall macro. */ |
217 | if ((*scb->ops->open) (scb, open_name)) | |
c906108c | 218 | { |
b8c9b27d | 219 | xfree (scb); |
c906108c SS |
220 | return NULL; |
221 | } | |
222 | ||
4fcf66da | 223 | scb->name = xstrdup (name); |
c906108c SS |
224 | scb->next = scb_base; |
225 | scb->refcnt = 1; | |
2acceee2 JM |
226 | scb->debug_p = 0; |
227 | scb->async_state = 0; | |
c2c6d25f JM |
228 | scb->async_handler = NULL; |
229 | scb->async_context = NULL; | |
c906108c SS |
230 | scb_base = scb; |
231 | ||
232 | last_serial_opened = scb; | |
233 | ||
234 | if (serial_logfile != NULL) | |
235 | { | |
236 | serial_logfp = gdb_fopen (serial_logfile, "w"); | |
237 | if (serial_logfp == NULL) | |
238 | perror_with_name (serial_logfile); | |
239 | } | |
240 | ||
241 | return scb; | |
242 | } | |
243 | ||
0ea3f30e DJ |
244 | /* Return the open serial device for FD, if found, or NULL if FD |
245 | is not already opened. */ | |
246 | ||
247 | struct serial * | |
248 | serial_for_fd (int fd) | |
249 | { | |
250 | struct serial *scb; | |
251 | struct serial_ops *ops; | |
252 | ||
253 | for (scb = scb_base; scb; scb = scb->next) | |
254 | if (scb->fd == fd) | |
255 | return scb; | |
256 | ||
257 | return NULL; | |
258 | } | |
259 | ||
819cc324 | 260 | struct serial * |
c2c6d25f | 261 | serial_fdopen (const int fd) |
c906108c | 262 | { |
819cc324 | 263 | struct serial *scb; |
c906108c SS |
264 | struct serial_ops *ops; |
265 | ||
266 | for (scb = scb_base; scb; scb = scb->next) | |
267 | if (scb->fd == fd) | |
268 | { | |
269 | scb->refcnt++; | |
270 | return scb; | |
271 | } | |
272 | ||
0ea3f30e DJ |
273 | ops = serial_interface_lookup ("terminal"); |
274 | if (!ops) | |
275 | ops = serial_interface_lookup ("hardwire"); | |
c906108c SS |
276 | |
277 | if (!ops) | |
278 | return NULL; | |
279 | ||
0ea3f30e | 280 | scb = XCALLOC (1, struct serial); |
c906108c SS |
281 | |
282 | scb->ops = ops; | |
283 | ||
284 | scb->bufcnt = 0; | |
285 | scb->bufp = scb->buf; | |
286 | ||
287 | scb->fd = fd; | |
288 | ||
289 | scb->name = NULL; | |
290 | scb->next = scb_base; | |
291 | scb->refcnt = 1; | |
2acceee2 JM |
292 | scb->debug_p = 0; |
293 | scb->async_state = 0; | |
c2c6d25f JM |
294 | scb->async_handler = NULL; |
295 | scb->async_context = NULL; | |
c906108c SS |
296 | scb_base = scb; |
297 | ||
298 | last_serial_opened = scb; | |
299 | ||
300 | return scb; | |
301 | } | |
302 | ||
c2c6d25f | 303 | static void |
819cc324 | 304 | do_serial_close (struct serial *scb, int really_close) |
c906108c | 305 | { |
819cc324 | 306 | struct serial *tmp_scb; |
c906108c SS |
307 | |
308 | last_serial_opened = NULL; | |
309 | ||
310 | if (serial_logfp) | |
311 | { | |
312 | fputs_unfiltered ("\nEnd of log\n", serial_logfp); | |
313 | serial_current_type = 0; | |
314 | ||
315 | /* XXX - What if serial_logfp == gdb_stdout or gdb_stderr? */ | |
d9fcf2fb | 316 | ui_file_delete (serial_logfp); |
c906108c SS |
317 | serial_logfp = NULL; |
318 | } | |
319 | ||
320 | /* This is bogus. It's not our fault if you pass us a bad scb...! Rob, you | |
321 | should fix your code instead. */ | |
322 | ||
323 | if (!scb) | |
324 | return; | |
325 | ||
326 | scb->refcnt--; | |
327 | if (scb->refcnt > 0) | |
328 | return; | |
329 | ||
c2c6d25f JM |
330 | /* ensure that the FD has been taken out of async mode */ |
331 | if (scb->async_handler != NULL) | |
332 | serial_async (scb, NULL, NULL); | |
333 | ||
c906108c SS |
334 | if (really_close) |
335 | scb->ops->close (scb); | |
336 | ||
337 | if (scb->name) | |
b8c9b27d | 338 | xfree (scb->name); |
c906108c SS |
339 | |
340 | if (scb_base == scb) | |
341 | scb_base = scb_base->next; | |
342 | else | |
343 | for (tmp_scb = scb_base; tmp_scb; tmp_scb = tmp_scb->next) | |
344 | { | |
345 | if (tmp_scb->next != scb) | |
346 | continue; | |
347 | ||
348 | tmp_scb->next = tmp_scb->next->next; | |
349 | break; | |
350 | } | |
351 | ||
b8c9b27d | 352 | xfree (scb); |
c906108c SS |
353 | } |
354 | ||
c2c6d25f | 355 | void |
819cc324 | 356 | serial_close (struct serial *scb) |
c2c6d25f JM |
357 | { |
358 | do_serial_close (scb, 1); | |
359 | } | |
360 | ||
361 | void | |
819cc324 | 362 | serial_un_fdopen (struct serial *scb) |
c2c6d25f JM |
363 | { |
364 | do_serial_close (scb, 0); | |
365 | } | |
366 | ||
367 | int | |
819cc324 | 368 | serial_readchar (struct serial *scb, int timeout) |
c2c6d25f JM |
369 | { |
370 | int ch; | |
371 | ||
2df3850c JM |
372 | /* FIXME: cagney/1999-10-11: Don't enable this check until the ASYNC |
373 | code is finished. */ | |
2cd58942 | 374 | if (0 && serial_is_async_p (scb) && timeout < 0) |
8e65ff28 | 375 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 376 | _("serial_readchar: blocking read in async mode")); |
2df3850c | 377 | |
c2c6d25f JM |
378 | ch = scb->ops->readchar (scb, timeout); |
379 | if (serial_logfp != NULL) | |
380 | { | |
2acceee2 | 381 | serial_logchar (serial_logfp, 'r', ch, timeout); |
c2c6d25f JM |
382 | |
383 | /* Make sure that the log file is as up-to-date as possible, | |
384 | in case we are getting ready to dump core or something. */ | |
385 | gdb_flush (serial_logfp); | |
386 | } | |
2cd58942 | 387 | if (serial_debug_p (scb)) |
2acceee2 JM |
388 | { |
389 | fprintf_unfiltered (gdb_stdlog, "["); | |
390 | serial_logchar (gdb_stdlog, 'r', ch, timeout); | |
391 | fprintf_unfiltered (gdb_stdlog, "]"); | |
392 | gdb_flush (gdb_stdlog); | |
393 | } | |
c2c6d25f JM |
394 | |
395 | return (ch); | |
396 | } | |
397 | ||
398 | int | |
819cc324 | 399 | serial_write (struct serial *scb, const char *str, int len) |
c2c6d25f JM |
400 | { |
401 | if (serial_logfp != NULL) | |
402 | { | |
403 | int count; | |
404 | ||
405 | for (count = 0; count < len; count++) | |
2acceee2 | 406 | serial_logchar (serial_logfp, 'w', str[count] & 0xff, 0); |
c2c6d25f JM |
407 | |
408 | /* Make sure that the log file is as up-to-date as possible, | |
409 | in case we are getting ready to dump core or something. */ | |
410 | gdb_flush (serial_logfp); | |
411 | } | |
412 | ||
413 | return (scb->ops->write (scb, str, len)); | |
414 | } | |
415 | ||
416 | void | |
819cc324 | 417 | serial_printf (struct serial *desc, const char *format,...) |
c2c6d25f JM |
418 | { |
419 | va_list args; | |
420 | char *buf; | |
421 | va_start (args, format); | |
422 | ||
e623b504 | 423 | buf = xstrvprintf (format, args); |
2cd58942 | 424 | serial_write (desc, buf, strlen (buf)); |
c2c6d25f | 425 | |
b8c9b27d | 426 | xfree (buf); |
c2c6d25f JM |
427 | va_end (args); |
428 | } | |
429 | ||
430 | int | |
819cc324 | 431 | serial_drain_output (struct serial *scb) |
c2c6d25f JM |
432 | { |
433 | return scb->ops->drain_output (scb); | |
434 | } | |
435 | ||
436 | int | |
819cc324 | 437 | serial_flush_output (struct serial *scb) |
c2c6d25f JM |
438 | { |
439 | return scb->ops->flush_output (scb); | |
440 | } | |
441 | ||
442 | int | |
819cc324 | 443 | serial_flush_input (struct serial *scb) |
c2c6d25f JM |
444 | { |
445 | return scb->ops->flush_input (scb); | |
446 | } | |
447 | ||
448 | int | |
819cc324 | 449 | serial_send_break (struct serial *scb) |
c2c6d25f JM |
450 | { |
451 | if (serial_logfp != NULL) | |
2acceee2 | 452 | serial_logchar (serial_logfp, 'w', SERIAL_BREAK, 0); |
c2c6d25f JM |
453 | |
454 | return (scb->ops->send_break (scb)); | |
455 | } | |
456 | ||
457 | void | |
819cc324 | 458 | serial_raw (struct serial *scb) |
c2c6d25f JM |
459 | { |
460 | scb->ops->go_raw (scb); | |
461 | } | |
462 | ||
463 | serial_ttystate | |
819cc324 | 464 | serial_get_tty_state (struct serial *scb) |
c2c6d25f JM |
465 | { |
466 | return scb->ops->get_tty_state (scb); | |
467 | } | |
468 | ||
469 | int | |
819cc324 | 470 | serial_set_tty_state (struct serial *scb, serial_ttystate ttystate) |
c2c6d25f JM |
471 | { |
472 | return scb->ops->set_tty_state (scb, ttystate); | |
473 | } | |
474 | ||
475 | void | |
819cc324 | 476 | serial_print_tty_state (struct serial *scb, |
c2c6d25f | 477 | serial_ttystate ttystate, |
d9fcf2fb | 478 | struct ui_file *stream) |
c2c6d25f JM |
479 | { |
480 | scb->ops->print_tty_state (scb, ttystate, stream); | |
481 | } | |
482 | ||
483 | int | |
819cc324 | 484 | serial_noflush_set_tty_state (struct serial *scb, |
c2c6d25f JM |
485 | serial_ttystate new_ttystate, |
486 | serial_ttystate old_ttystate) | |
487 | { | |
488 | return scb->ops->noflush_set_tty_state (scb, new_ttystate, old_ttystate); | |
489 | } | |
490 | ||
491 | int | |
819cc324 | 492 | serial_setbaudrate (struct serial *scb, int rate) |
c2c6d25f JM |
493 | { |
494 | return scb->ops->setbaudrate (scb, rate); | |
495 | } | |
496 | ||
497 | int | |
819cc324 | 498 | serial_setstopbits (struct serial *scb, int num) |
c2c6d25f JM |
499 | { |
500 | return scb->ops->setstopbits (scb, num); | |
501 | } | |
502 | ||
503 | int | |
819cc324 | 504 | serial_can_async_p (struct serial *scb) |
c2c6d25f JM |
505 | { |
506 | return (scb->ops->async != NULL); | |
507 | } | |
508 | ||
509 | int | |
819cc324 | 510 | serial_is_async_p (struct serial *scb) |
c2c6d25f JM |
511 | { |
512 | return (scb->ops->async != NULL) && (scb->async_handler != NULL); | |
513 | } | |
514 | ||
515 | void | |
819cc324 | 516 | serial_async (struct serial *scb, |
c2c6d25f JM |
517 | serial_event_ftype *handler, |
518 | void *context) | |
519 | { | |
520 | /* Only change mode if there is a need. */ | |
521 | if ((scb->async_handler == NULL) | |
522 | != (handler == NULL)) | |
523 | scb->ops->async (scb, handler != NULL); | |
524 | scb->async_handler = handler; | |
525 | scb->async_context = context; | |
526 | } | |
527 | ||
528 | int | |
819cc324 | 529 | deprecated_serial_fd (struct serial *scb) |
c2c6d25f JM |
530 | { |
531 | /* FIXME: should this output a warning that deprecated code is being | |
532 | called? */ | |
533 | if (scb->fd < 0) | |
534 | { | |
8e65ff28 | 535 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 536 | _("serial: FD not valid")); |
c2c6d25f JM |
537 | } |
538 | return scb->fd; /* sigh */ | |
539 | } | |
540 | ||
2acceee2 | 541 | void |
819cc324 | 542 | serial_debug (struct serial *scb, int debug_p) |
2acceee2 JM |
543 | { |
544 | scb->debug_p = debug_p; | |
545 | } | |
546 | ||
547 | int | |
819cc324 | 548 | serial_debug_p (struct serial *scb) |
2acceee2 JM |
549 | { |
550 | return scb->debug_p || global_serial_debug_p; | |
551 | } | |
552 | ||
0ea3f30e DJ |
553 | #ifdef USE_WIN32API |
554 | void | |
555 | serial_wait_handle (struct serial *scb, HANDLE *read, HANDLE *except) | |
556 | { | |
557 | if (scb->ops->wait_handle) | |
558 | scb->ops->wait_handle (scb, read, except); | |
559 | else | |
560 | { | |
561 | *read = (HANDLE) _get_osfhandle (scb->fd); | |
562 | *except = NULL; | |
563 | } | |
564 | } | |
c3e2b812 DJ |
565 | |
566 | void | |
567 | serial_done_wait_handle (struct serial *scb) | |
568 | { | |
569 | if (scb->ops->done_wait_handle) | |
570 | scb->ops->done_wait_handle (scb); | |
571 | } | |
0ea3f30e | 572 | #endif |
2acceee2 | 573 | |
c906108c | 574 | #if 0 |
819cc324 AC |
575 | /* The connect command is #if 0 because I hadn't thought of an elegant |
576 | way to wait for I/O on two `struct serial *'s simultaneously. Two | |
577 | solutions came to mind: | |
c906108c | 578 | |
c5aa993b JM |
579 | 1) Fork, and have have one fork handle the to user direction, |
580 | and have the other hand the to target direction. This | |
581 | obviously won't cut it for MSDOS. | |
c906108c | 582 | |
c5aa993b JM |
583 | 2) Use something like select. This assumes that stdin and |
584 | the target side can both be waited on via the same | |
585 | mechanism. This may not be true for DOS, if GDB is | |
586 | talking to the target via a TCP socket. | |
819cc324 | 587 | -grossman, 8 Jun 93 */ |
c906108c SS |
588 | |
589 | /* Connect the user directly to the remote system. This command acts just like | |
590 | the 'cu' or 'tip' command. Use <CR>~. or <CR>~^D to break out. */ | |
591 | ||
819cc324 | 592 | static struct serial *tty_desc; /* Controlling terminal */ |
c906108c SS |
593 | |
594 | static void | |
c2c6d25f | 595 | cleanup_tty (serial_ttystate ttystate) |
c906108c SS |
596 | { |
597 | printf_unfiltered ("\r\n[Exiting connect mode]\r\n"); | |
2cd58942 | 598 | serial_set_tty_state (tty_desc, ttystate); |
b8c9b27d | 599 | xfree (ttystate); |
2cd58942 | 600 | serial_close (tty_desc); |
c906108c SS |
601 | } |
602 | ||
603 | static void | |
c2c6d25f | 604 | connect_command (char *args, int fromtty) |
c906108c SS |
605 | { |
606 | int c; | |
607 | char cur_esc = 0; | |
608 | serial_ttystate ttystate; | |
819cc324 | 609 | struct serial *port_desc; /* TTY port */ |
c906108c | 610 | |
c5aa993b | 611 | dont_repeat (); |
c906108c SS |
612 | |
613 | if (args) | |
c5aa993b JM |
614 | fprintf_unfiltered (gdb_stderr, "This command takes no args. They have been ignored.\n"); |
615 | ||
616 | printf_unfiltered ("[Entering connect mode. Use ~. or ~^D to escape]\n"); | |
c906108c | 617 | |
2cd58942 | 618 | tty_desc = serial_fdopen (0); |
c906108c SS |
619 | port_desc = last_serial_opened; |
620 | ||
2cd58942 | 621 | ttystate = serial_get_tty_state (tty_desc); |
c906108c | 622 | |
2cd58942 AC |
623 | serial_raw (tty_desc); |
624 | serial_raw (port_desc); | |
c906108c SS |
625 | |
626 | make_cleanup (cleanup_tty, ttystate); | |
627 | ||
628 | while (1) | |
629 | { | |
630 | int mask; | |
631 | ||
2cd58942 | 632 | mask = serial_wait_2 (tty_desc, port_desc, -1); |
c906108c SS |
633 | |
634 | if (mask & 2) | |
635 | { /* tty input */ | |
636 | char cx; | |
637 | ||
638 | while (1) | |
639 | { | |
2cd58942 | 640 | c = serial_readchar (tty_desc, 0); |
c906108c SS |
641 | |
642 | if (c == SERIAL_TIMEOUT) | |
c5aa993b | 643 | break; |
c906108c SS |
644 | |
645 | if (c < 0) | |
e2e0b3e5 | 646 | perror_with_name (_("connect")); |
c906108c SS |
647 | |
648 | cx = c; | |
2cd58942 | 649 | serial_write (port_desc, &cx, 1); |
c906108c SS |
650 | |
651 | switch (cur_esc) | |
652 | { | |
653 | case 0: | |
654 | if (c == '\r') | |
655 | cur_esc = c; | |
656 | break; | |
657 | case '\r': | |
658 | if (c == '~') | |
659 | cur_esc = c; | |
660 | else | |
661 | cur_esc = 0; | |
662 | break; | |
663 | case '~': | |
664 | if (c == '.' || c == '\004') | |
665 | return; | |
666 | else | |
667 | cur_esc = 0; | |
668 | } | |
669 | } | |
670 | } | |
671 | ||
672 | if (mask & 1) | |
673 | { /* Port input */ | |
674 | char cx; | |
675 | ||
676 | while (1) | |
677 | { | |
2cd58942 | 678 | c = serial_readchar (port_desc, 0); |
c906108c SS |
679 | |
680 | if (c == SERIAL_TIMEOUT) | |
c5aa993b | 681 | break; |
c906108c SS |
682 | |
683 | if (c < 0) | |
e2e0b3e5 | 684 | perror_with_name (_("connect")); |
c906108c SS |
685 | |
686 | cx = c; | |
687 | ||
2cd58942 | 688 | serial_write (tty_desc, &cx, 1); |
c906108c SS |
689 | } |
690 | } | |
691 | } | |
692 | } | |
693 | #endif /* 0 */ | |
694 | ||
e3abfe1d AC |
695 | /* Serial set/show framework. */ |
696 | ||
697 | static struct cmd_list_element *serial_set_cmdlist; | |
698 | static struct cmd_list_element *serial_show_cmdlist; | |
699 | ||
700 | static void | |
701 | serial_set_cmd (char *args, int from_tty) | |
702 | { | |
703 | printf_unfiltered ("\"set serial\" must be followed by the name of a command.\n"); | |
704 | help_list (serial_set_cmdlist, "set serial ", -1, gdb_stdout); | |
705 | } | |
706 | ||
707 | static void | |
708 | serial_show_cmd (char *args, int from_tty) | |
709 | { | |
710 | cmd_show_list (serial_show_cmdlist, from_tty, ""); | |
711 | } | |
712 | ||
713 | ||
c906108c | 714 | void |
c2c6d25f | 715 | _initialize_serial (void) |
c906108c SS |
716 | { |
717 | #if 0 | |
1bedd215 AC |
718 | add_com ("connect", class_obscure, connect_command, _("\ |
719 | Connect the terminal directly up to the command monitor.\n\ | |
720 | Use <CR>~. or <CR>~^D to break out.")); | |
c906108c SS |
721 | #endif /* 0 */ |
722 | ||
1bedd215 AC |
723 | add_prefix_cmd ("serial", class_maintenance, serial_set_cmd, _("\ |
724 | Set default serial/parallel port configuration."), | |
e3abfe1d AC |
725 | &serial_set_cmdlist, "set serial ", |
726 | 0/*allow-unknown*/, | |
727 | &setlist); | |
728 | ||
1bedd215 AC |
729 | add_prefix_cmd ("serial", class_maintenance, serial_show_cmd, _("\ |
730 | Show default serial/parallel port configuration."), | |
e3abfe1d AC |
731 | &serial_show_cmdlist, "show serial ", |
732 | 0/*allow-unknown*/, | |
733 | &showlist); | |
734 | ||
f397e303 AC |
735 | add_setshow_filename_cmd ("remotelogfile", no_class, &serial_logfile, _("\ |
736 | Set filename for remote session recording."), _("\ | |
737 | Show filename for remote session recording."), _("\ | |
c906108c | 738 | This file is used to record the remote session for future playback\n\ |
f397e303 AC |
739 | by gdbserver."), |
740 | NULL, | |
741 | NULL, /* FIXME: i18n: */ | |
742 | &setlist, &showlist); | |
c906108c | 743 | |
7ab04401 AC |
744 | add_setshow_enum_cmd ("remotelogbase", no_class, logbase_enums, |
745 | &serial_logbase, _("\ | |
746 | Set numerical base for remote session logging"), _("\ | |
747 | Show numerical base for remote session logging"), NULL, | |
748 | NULL, | |
749 | NULL, /* FIXME: i18n: */ | |
750 | &setlist, &showlist); | |
2acceee2 | 751 | |
85c07804 AC |
752 | add_setshow_zinteger_cmd ("serial", class_maintenance, |
753 | &global_serial_debug_p, _("\ | |
754 | Set serial debugging."), _("\ | |
755 | Show serial debugging."), _("\ | |
756 | When non-zero, serial port debugging is enabled."), | |
757 | NULL, | |
758 | NULL, /* FIXME: i18n: */ | |
759 | &setdebuglist, &showdebuglist); | |
c906108c | 760 | } |