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c906108c | 1 | /* Remote debugging interface for boot monitors, for GDB. |
43ff13b4 | 2 | Copyright 1990, 1991, 1992, 1993, 1999 Free Software Foundation, Inc. |
c906108c SS |
3 | |
4 | This file is part of GDB. | |
5 | ||
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 | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
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. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | /* This file was derived from remote-eb.c, which did a similar job, but for | |
21 | an AMD-29K running EBMON. That file was in turn derived from remote.c | |
22 | as mentioned in the following comment (left in for comic relief): | |
23 | ||
24 | "This is like remote.c but is for a different situation-- | |
25 | having a PC running os9000 hook up with a unix machine with | |
26 | a serial line, and running ctty com2 on the PC. os9000 has a debug | |
27 | monitor called ROMBUG running. Not to mention that the PC | |
28 | has PC/NFS, so it can access the same executables that gdb can, | |
29 | over the net in real time." | |
30 | ||
31 | In reality, this module talks to a debug monitor called 'ROMBUG', which | |
32 | We communicate with ROMBUG via a direct serial line, the network version | |
33 | of ROMBUG is not available yet. | |
34 | */ | |
35 | ||
36 | /* FIXME This file needs to be rewritten if it's to work again, either | |
37 | to self-contained or to use the new monitor interface. */ | |
38 | ||
39 | #include "defs.h" | |
40 | #include "gdbcore.h" | |
41 | #include "target.h" | |
42 | #include "wait.h" | |
43ff13b4 | 43 | |
c906108c SS |
44 | #ifdef ANSI_PROTOTYPES |
45 | #include <stdarg.h> | |
46 | #else | |
47 | #include <varargs.h> | |
48 | #endif | |
43ff13b4 JM |
49 | #ifdef HAVE_SYS_SELECT_H |
50 | #include <sys/select.h> | |
51 | #endif | |
c906108c | 52 | #include <signal.h> |
c906108c | 53 | #include <sys/types.h> |
43ff13b4 JM |
54 | |
55 | #include "gdb_string.h" | |
c906108c SS |
56 | #include "command.h" |
57 | #include "serial.h" | |
58 | #include "monitor.h" | |
59 | #include "remote-utils.h" | |
60 | #include "symtab.h" | |
61 | #include "symfile.h" | |
62 | #include "objfiles.h" | |
63 | #include "gdb-stabs.h" | |
64 | ||
65 | struct cmd_list_element *showlist; | |
66 | extern struct target_ops rombug_ops; /* Forward declaration */ | |
67 | extern struct monitor_ops rombug_cmds; /* Forward declaration */ | |
68 | extern struct cmd_list_element *setlist; | |
69 | extern struct cmd_list_element *unsetlist; | |
70 | extern int attach_flag; | |
71 | ||
72 | static void rombug_close(); | |
73 | static void rombug_fetch_register(); | |
74 | static void rombug_fetch_registers(); | |
75 | static void rombug_store_register(); | |
76 | #if 0 | |
77 | static int sr_get_debug(); /* flag set by "set remotedebug" */ | |
78 | #endif | |
79 | static int hashmark; /* flag set by "set hash" */ | |
80 | static int rombug_is_open = 0; | |
81 | ||
82 | /* FIXME: Replace with sr_get_debug (). */ | |
83 | #define LOG_FILE "monitor.log" | |
84 | FILE *log_file; | |
85 | static int monitor_log = 0; | |
86 | static int tty_xon = 0; | |
87 | static int tty_xoff = 0; | |
88 | ||
89 | static int timeout = 10; | |
90 | static int is_trace_mode = 0; | |
91 | /* Descriptor for I/O to remote machine. Initialize it to NULL*/ | |
92 | static serial_t monitor_desc = NULL; | |
93 | ||
94 | static CORE_ADDR bufaddr = 0; | |
95 | static int buflen = 0; | |
96 | static char readbuf[16]; | |
97 | ||
98 | /* Send data to monitor. Works just like printf. */ | |
99 | static void | |
100 | #ifdef ANSI_PROTOTYPES | |
101 | printf_monitor(char *pattern, ...) | |
102 | #else | |
103 | printf_monitor(va_alist) | |
104 | va_dcl | |
105 | #endif | |
106 | { | |
107 | va_list args; | |
108 | char buf[200]; | |
109 | int i; | |
110 | ||
111 | #ifdef ANSI_PROTOTYPES | |
112 | va_start (args, pattern); | |
113 | #else | |
114 | char *pattern; | |
115 | va_start(args); | |
116 | pattern = va_arg(args, char *); | |
117 | #endif | |
118 | ||
119 | vsprintf(buf, pattern, args); | |
120 | va_end(args); | |
121 | ||
122 | if (SERIAL_WRITE(monitor_desc, buf, strlen(buf))) | |
123 | fprintf(stderr, "SERIAL_WRITE failed: %s\n", safe_strerror(errno)); | |
124 | } | |
125 | ||
126 | /* Read a character from the remote system, doing all the fancy timeout stuff*/ | |
127 | static int | |
128 | readchar(timeout) | |
129 | int timeout; | |
130 | { | |
131 | int c; | |
132 | ||
133 | c = SERIAL_READCHAR(monitor_desc, timeout); | |
134 | ||
135 | if (sr_get_debug()) | |
136 | putchar(c & 0x7f); | |
137 | ||
138 | if (monitor_log && isascii(c)) | |
139 | putc(c & 0x7f, log_file); | |
140 | ||
141 | if (c >= 0) | |
142 | return c & 0x7f; | |
143 | ||
144 | if (c == SERIAL_TIMEOUT) | |
145 | { | |
146 | if (timeout == 0) | |
147 | return c; /* Polls shouldn't generate timeout errors */ | |
148 | ||
149 | error("Timeout reading from remote system."); | |
150 | } | |
151 | ||
152 | perror_with_name("remote-monitor"); | |
153 | } | |
154 | ||
155 | /* Scan input from the remote system, until STRING is found. If DISCARD is | |
156 | non-zero, then discard non-matching input, else print it out. | |
157 | Let the user break out immediately. */ | |
158 | static void | |
159 | expect(string, discard) | |
160 | char *string; | |
161 | int discard; | |
162 | { | |
163 | char *p = string; | |
164 | int c; | |
165 | ||
166 | if (sr_get_debug()) | |
167 | printf ("Expecting \"%s\"\n", string); | |
168 | ||
169 | immediate_quit = 1; | |
170 | while (1) | |
171 | { | |
172 | c = readchar(timeout); | |
173 | if (!isascii (c)) | |
174 | continue; | |
175 | if (c == *p++) | |
176 | { | |
177 | if (*p == '\0') | |
178 | { | |
179 | immediate_quit = 0; | |
180 | if (sr_get_debug()) | |
181 | printf ("\nMatched\n"); | |
182 | return; | |
183 | } | |
184 | } | |
185 | else | |
186 | { | |
187 | if (!discard) | |
188 | { | |
189 | fwrite(string, 1, (p - 1) - string, stdout); | |
190 | putchar((char)c); | |
191 | fflush(stdout); | |
192 | } | |
193 | p = string; | |
194 | } | |
195 | } | |
196 | } | |
197 | ||
198 | /* Keep discarding input until we see the ROMBUG prompt. | |
199 | ||
200 | The convention for dealing with the prompt is that you | |
201 | o give your command | |
202 | o *then* wait for the prompt. | |
203 | ||
204 | Thus the last thing that a procedure does with the serial line | |
205 | will be an expect_prompt(). Exception: rombug_resume does not | |
206 | wait for the prompt, because the terminal is being handed over | |
207 | to the inferior. However, the next thing which happens after that | |
208 | is a rombug_wait which does wait for the prompt. | |
209 | Note that this includes abnormal exit, e.g. error(). This is | |
210 | necessary to prevent getting into states from which we can't | |
211 | recover. */ | |
212 | static void | |
213 | expect_prompt(discard) | |
214 | int discard; | |
215 | { | |
216 | if (monitor_log) | |
217 | /* This is a convenient place to do this. The idea is to do it often | |
218 | enough that we never lose much data if we terminate abnormally. */ | |
219 | fflush(log_file); | |
220 | ||
221 | if (is_trace_mode) { | |
222 | expect("trace", discard); | |
223 | } else { | |
224 | expect (PROMPT, discard); | |
225 | } | |
226 | } | |
227 | ||
228 | /* Get a hex digit from the remote system & return its value. | |
229 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ | |
230 | static int | |
231 | get_hex_digit(ignore_space) | |
232 | int ignore_space; | |
233 | { | |
234 | int ch; | |
235 | while (1) | |
236 | { | |
237 | ch = readchar(timeout); | |
238 | if (ch >= '0' && ch <= '9') | |
239 | return ch - '0'; | |
240 | else if (ch >= 'A' && ch <= 'F') | |
241 | return ch - 'A' + 10; | |
242 | else if (ch >= 'a' && ch <= 'f') | |
243 | return ch - 'a' + 10; | |
244 | else if (ch == ' ' && ignore_space) | |
245 | ; | |
246 | else | |
247 | { | |
248 | expect_prompt(1); | |
249 | error("Invalid hex digit from remote system."); | |
250 | } | |
251 | } | |
252 | } | |
253 | ||
254 | /* Get a byte from monitor and put it in *BYT. Accept any number | |
255 | leading spaces. */ | |
256 | static void | |
257 | get_hex_byte (byt) | |
258 | char *byt; | |
259 | { | |
260 | int val; | |
261 | ||
262 | val = get_hex_digit (1) << 4; | |
263 | val |= get_hex_digit (0); | |
264 | *byt = val; | |
265 | } | |
266 | ||
267 | /* Get N 32-bit words from remote, each preceded by a space, | |
268 | and put them in registers starting at REGNO. */ | |
269 | static void | |
270 | get_hex_regs (n, regno) | |
271 | int n; | |
272 | int regno; | |
273 | { | |
274 | long val; | |
275 | int i; | |
276 | unsigned char b; | |
277 | ||
278 | for (i = 0; i < n; i++) | |
279 | { | |
280 | int j; | |
281 | ||
282 | val = 0; | |
283 | for (j = 0; j < 4; j++) | |
284 | { | |
285 | get_hex_byte (&b); | |
286 | if (TARGET_BYTE_ORDER == BIG_ENDIAN) | |
287 | val = (val << 8) + b; | |
288 | else | |
289 | val = val + (b << (j*8)); | |
290 | } | |
291 | supply_register (regno++, (char *) &val); | |
292 | } | |
293 | } | |
294 | ||
295 | /* This is called not only when we first attach, but also when the | |
296 | user types "run" after having attached. */ | |
297 | static void | |
298 | rombug_create_inferior (execfile, args, env) | |
299 | char *execfile; | |
300 | char *args; | |
301 | char **env; | |
302 | { | |
303 | int entry_pt; | |
304 | ||
305 | if (args && *args) | |
306 | error("Can't pass arguments to remote ROMBUG process"); | |
307 | ||
308 | if (execfile == 0 || exec_bfd == 0) | |
309 | error("No executable file specified"); | |
310 | ||
311 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
312 | ||
313 | if (monitor_log) | |
314 | fputs ("\nIn Create_inferior()", log_file); | |
315 | ||
316 | ||
317 | /* The "process" (board) is already stopped awaiting our commands, and | |
318 | the program is already downloaded. We just set its PC and go. */ | |
319 | ||
320 | init_wait_for_inferior (); | |
321 | proceed ((CORE_ADDR)entry_pt, TARGET_SIGNAL_DEFAULT, 0); | |
322 | } | |
323 | ||
324 | /* Open a connection to a remote debugger. | |
325 | NAME is the filename used for communication. */ | |
326 | ||
327 | static char dev_name[100]; | |
328 | ||
329 | static void | |
330 | rombug_open(args, from_tty) | |
331 | char *args; | |
332 | int from_tty; | |
333 | { | |
334 | if (args == NULL) | |
335 | error ("Use `target RomBug DEVICE-NAME' to use a serial port, or \n\ | |
336 | `target RomBug HOST-NAME:PORT-NUMBER' to use a network connection."); | |
337 | ||
338 | target_preopen(from_tty); | |
339 | ||
340 | if (rombug_is_open) | |
341 | unpush_target(&rombug_ops); | |
342 | ||
343 | strcpy(dev_name, args); | |
344 | monitor_desc = SERIAL_OPEN(dev_name); | |
345 | if (monitor_desc == NULL) | |
346 | perror_with_name(dev_name); | |
347 | ||
348 | /* if baud rate is set by 'set remotebaud' */ | |
349 | if (SERIAL_SETBAUDRATE (monitor_desc, sr_get_baud_rate())) | |
350 | { | |
351 | SERIAL_CLOSE (monitor_desc); | |
352 | perror_with_name ("RomBug"); | |
353 | } | |
354 | SERIAL_RAW(monitor_desc); | |
355 | if (tty_xon || tty_xoff) | |
356 | { | |
357 | struct hardware_ttystate { struct termios t;} *tty_s; | |
358 | ||
359 | tty_s =(struct hardware_ttystate *)SERIAL_GET_TTY_STATE(monitor_desc); | |
360 | if (tty_xon) tty_s->t.c_iflag |= IXON; | |
361 | if (tty_xoff) tty_s->t.c_iflag |= IXOFF; | |
362 | SERIAL_SET_TTY_STATE(monitor_desc, (serial_ttystate) tty_s); | |
363 | } | |
364 | ||
365 | rombug_is_open = 1; | |
366 | ||
367 | log_file = fopen (LOG_FILE, "w"); | |
368 | if (log_file == NULL) | |
369 | perror_with_name (LOG_FILE); | |
370 | ||
371 | push_monitor (&rombug_cmds); | |
372 | printf_monitor("\r"); /* CR wakes up monitor */ | |
373 | expect_prompt(1); | |
374 | push_target (&rombug_ops); | |
375 | attach_flag = 1; | |
376 | ||
377 | if (from_tty) | |
378 | printf("Remote %s connected to %s\n", target_shortname, | |
379 | dev_name); | |
380 | ||
381 | rombug_fetch_registers(); | |
382 | ||
383 | printf_monitor ("ov e \r"); | |
384 | expect_prompt(1); | |
385 | bufaddr = 0; | |
386 | buflen = 0; | |
387 | } | |
388 | ||
389 | /* | |
390 | * Close out all files and local state before this target loses control. | |
391 | */ | |
392 | ||
393 | static void | |
394 | rombug_close (quitting) | |
395 | int quitting; | |
396 | { | |
397 | if (rombug_is_open) { | |
398 | SERIAL_CLOSE(monitor_desc); | |
399 | monitor_desc = NULL; | |
400 | rombug_is_open = 0; | |
401 | } | |
402 | ||
403 | if (log_file) { | |
404 | if (ferror(log_file)) | |
405 | fprintf(stderr, "Error writing log file.\n"); | |
406 | if (fclose(log_file) != 0) | |
407 | fprintf(stderr, "Error closing log file.\n"); | |
408 | log_file = 0; | |
409 | } | |
410 | } | |
411 | ||
412 | int | |
413 | rombug_link(mod_name, text_reloc) | |
414 | char *mod_name; | |
415 | CORE_ADDR *text_reloc; | |
416 | { | |
417 | int i, j; | |
418 | unsigned long val; | |
419 | unsigned char b; | |
420 | ||
421 | printf_monitor("l %s \r", mod_name); | |
422 | expect_prompt(1); | |
423 | printf_monitor(".r \r"); | |
424 | expect(REG_DELIM, 1); | |
425 | for (i=0; i <= 7; i++) | |
426 | { | |
427 | val = 0; | |
428 | for (j = 0; j < 4; j++) | |
429 | { | |
430 | get_hex_byte(&b); | |
431 | val = (val << 8) + b; | |
432 | } | |
433 | } | |
434 | expect_prompt(1); | |
435 | *text_reloc = val; | |
436 | return 1; | |
437 | } | |
438 | ||
439 | /* Terminate the open connection to the remote debugger. | |
440 | Use this when you want to detach and do something else | |
441 | with your gdb. */ | |
442 | static void | |
443 | rombug_detach (from_tty) | |
444 | int from_tty; | |
445 | { | |
446 | if (attach_flag) { | |
447 | printf_monitor (GO_CMD); | |
448 | attach_flag = 0; | |
449 | } | |
450 | pop_target(); /* calls rombug_close to do the real work */ | |
451 | if (from_tty) | |
452 | printf ("Ending remote %s debugging\n", target_shortname); | |
453 | } | |
454 | ||
455 | /* | |
456 | * Tell the remote machine to resume. | |
457 | */ | |
458 | static void | |
459 | rombug_resume (pid, step, sig) | |
460 | int pid, step; | |
461 | enum target_signal sig; | |
462 | { | |
463 | if (monitor_log) | |
464 | fprintf (log_file, "\nIn Resume (step=%d, sig=%d)\n", step, sig); | |
465 | ||
466 | if (step) | |
467 | { | |
468 | is_trace_mode = 1; | |
469 | printf_monitor (STEP_CMD); | |
470 | /* wait for the echo. ** | |
471 | expect (STEP_CMD, 1); | |
472 | */ | |
473 | } | |
474 | else | |
475 | { | |
476 | printf_monitor (GO_CMD); | |
477 | /* swallow the echo. ** | |
478 | expect (GO_CMD, 1); | |
479 | */ | |
480 | } | |
481 | bufaddr = 0; | |
482 | buflen= 0; | |
483 | } | |
484 | ||
485 | /* | |
486 | * Wait until the remote machine stops, then return, | |
487 | * storing status in status just as `wait' would. | |
488 | */ | |
489 | ||
490 | static int | |
491 | rombug_wait (pid, status) | |
492 | int pid; | |
493 | struct target_waitstatus *status; | |
494 | { | |
495 | int old_timeout = timeout; | |
496 | struct section_offsets *offs; | |
497 | CORE_ADDR addr, pc; | |
498 | struct obj_section *obj_sec; | |
499 | ||
500 | if (monitor_log) | |
501 | fputs ("\nIn wait ()", log_file); | |
502 | ||
503 | status->kind = TARGET_WAITKIND_EXITED; | |
504 | status->value.integer = 0; | |
505 | ||
506 | timeout = -1; /* Don't time out -- user program is running. */ | |
507 | expect ("eax:", 0); /* output any message before register display */ | |
508 | expect_prompt(1); /* Wait for prompt, outputting extraneous text */ | |
509 | ||
510 | status->kind = TARGET_WAITKIND_STOPPED; | |
511 | status->value.sig = TARGET_SIGNAL_TRAP; | |
512 | timeout = old_timeout; | |
513 | rombug_fetch_registers(); | |
514 | bufaddr = 0; | |
515 | buflen = 0; | |
516 | pc = read_register(PC_REGNUM); | |
517 | addr = read_register(DATABASE_REG); | |
518 | obj_sec = find_pc_section (pc); | |
519 | if (obj_sec != NULL) | |
520 | { | |
521 | if (obj_sec->objfile != symfile_objfile) | |
522 | new_symfile_objfile(obj_sec->objfile, 1, 0); | |
523 | offs = ((struct section_offsets *) | |
524 | alloca (sizeof (struct section_offsets) | |
525 | + (symfile_objfile->num_sections * sizeof (offs->offsets)))); | |
526 | memcpy (offs, symfile_objfile->section_offsets, | |
527 | (sizeof (struct section_offsets) + | |
528 | (symfile_objfile->num_sections * sizeof (offs->offsets)))); | |
529 | ANOFFSET (offs, SECT_OFF_DATA) = addr; | |
530 | ANOFFSET (offs, SECT_OFF_BSS) = addr; | |
531 | ||
532 | objfile_relocate(symfile_objfile, offs); | |
533 | } | |
534 | ||
535 | return 0; | |
536 | } | |
537 | ||
538 | /* Return the name of register number regno in the form input and output by | |
539 | monitor. Currently, register_names just happens to contain exactly what | |
540 | monitor wants. Lets take advantage of that just as long as possible! */ | |
541 | ||
542 | static char * | |
543 | get_reg_name (regno) | |
544 | int regno; | |
545 | { | |
546 | static char buf[50]; | |
547 | char *p; | |
548 | char *b; | |
549 | ||
550 | b = buf; | |
551 | ||
552 | if (regno < 0) | |
553 | return (""); | |
554 | /* | |
555 | for (p = REGISTER_NAME (regno); *p; p++) | |
556 | *b++ = toupper(*p); | |
557 | *b = '\000'; | |
558 | */ | |
559 | p = (char *)REGISTER_NAME (regno); | |
560 | return p; | |
561 | /* | |
562 | return buf; | |
563 | */ | |
564 | } | |
565 | ||
566 | /* read the remote registers into the block regs. */ | |
567 | ||
568 | static void | |
569 | rombug_fetch_registers () | |
570 | { | |
571 | int regno, j, i; | |
572 | long val; | |
573 | unsigned char b; | |
574 | ||
575 | printf_monitor (GET_REG); | |
576 | expect("eax:", 1); | |
577 | expect("\n", 1); | |
578 | get_hex_regs(1, 0); | |
579 | get_hex_regs(1, 3); | |
580 | get_hex_regs(1, 1); | |
581 | get_hex_regs(1, 2); | |
582 | get_hex_regs(1, 6); | |
583 | get_hex_regs(1, 7); | |
584 | get_hex_regs(1, 5); | |
585 | get_hex_regs(1, 4); | |
586 | for (regno = 8; regno <= 15; regno++) | |
587 | { | |
588 | expect(REG_DELIM, 1); | |
589 | if (regno >= 8 && regno <= 13) | |
590 | { | |
591 | val = 0; | |
592 | for (j = 0; j < 2; j++) | |
593 | { | |
594 | get_hex_byte (&b); | |
595 | if (TARGET_BYTE_ORDER == BIG_ENDIAN) | |
596 | val = (val << 8) + b; | |
597 | else | |
598 | val = val + (b << (j*8)); | |
599 | } | |
600 | ||
601 | if (regno == 8) i = 10; | |
602 | if (regno >= 9 && regno <= 12) i = regno + 3; | |
603 | if (regno == 13) i = 11; | |
604 | supply_register (i, (char *) &val); | |
605 | } | |
606 | else if (regno == 14) | |
607 | { | |
608 | get_hex_regs(1, PC_REGNUM); | |
609 | } | |
610 | else if (regno == 15) | |
611 | { | |
612 | get_hex_regs(1, 9); | |
613 | } | |
614 | else | |
615 | { | |
616 | val = 0; | |
617 | supply_register(regno, (char *) &val); | |
618 | } | |
619 | } | |
620 | is_trace_mode = 0; | |
621 | expect_prompt (1); | |
622 | } | |
623 | ||
624 | /* Fetch register REGNO, or all registers if REGNO is -1. | |
625 | Returns errno value. */ | |
626 | static void | |
627 | rombug_fetch_register (regno) | |
628 | int regno; | |
629 | { | |
630 | int val, j; | |
631 | unsigned char b; | |
632 | ||
633 | if (monitor_log) { | |
634 | fprintf (log_file, "\nIn Fetch Register (reg=%s)\n", get_reg_name (regno)); | |
635 | fflush (log_file); | |
636 | } | |
637 | ||
638 | if (regno < 0) | |
639 | { | |
640 | rombug_fetch_registers (); | |
641 | } | |
642 | else | |
643 | { | |
644 | char *name = get_reg_name (regno); | |
645 | printf_monitor (GET_REG); | |
646 | if (regno >= 10 && regno <= 15) | |
647 | { | |
648 | expect ("\n", 1); | |
649 | expect ("\n", 1); | |
650 | expect (name, 1); | |
651 | expect (REG_DELIM, 1); | |
652 | val = 0; | |
653 | for (j = 0; j < 2; j++) | |
654 | { | |
655 | get_hex_byte (&b); | |
656 | if (TARGET_BYTE_ORDER == BIG_ENDIAN) | |
657 | val = (val << 8) + b; | |
658 | else | |
659 | val = val + (b << (j*8)); | |
660 | } | |
661 | supply_register (regno, (char *) &val); | |
662 | } | |
663 | else if (regno == 8 || regno == 9) | |
664 | { | |
665 | expect ("\n", 1); | |
666 | expect ("\n", 1); | |
667 | expect ("\n", 1); | |
668 | expect (name, 1); | |
669 | expect (REG_DELIM, 1); | |
670 | get_hex_regs (1, regno); | |
671 | } | |
672 | else | |
673 | { | |
674 | expect (name, 1); | |
675 | expect (REG_DELIM, 1); | |
676 | expect("\n", 1); | |
677 | get_hex_regs(1, 0); | |
678 | get_hex_regs(1, 3); | |
679 | get_hex_regs(1, 1); | |
680 | get_hex_regs(1, 2); | |
681 | get_hex_regs(1, 6); | |
682 | get_hex_regs(1, 7); | |
683 | get_hex_regs(1, 5); | |
684 | get_hex_regs(1, 4); | |
685 | } | |
686 | expect_prompt (1); | |
687 | } | |
688 | return; | |
689 | } | |
690 | ||
691 | /* Store the remote registers from the contents of the block REGS. */ | |
692 | ||
693 | static void | |
694 | rombug_store_registers () | |
695 | { | |
696 | int regno; | |
697 | ||
698 | for (regno = 0; regno <= PC_REGNUM; regno++) | |
699 | rombug_store_register(regno); | |
700 | ||
701 | registers_changed (); | |
702 | } | |
703 | ||
704 | /* Store register REGNO, or all if REGNO == 0. | |
705 | return errno value. */ | |
706 | static void | |
707 | rombug_store_register (regno) | |
708 | int regno; | |
709 | { | |
710 | char *name; | |
711 | ||
712 | if (monitor_log) | |
713 | fprintf (log_file, "\nIn Store_register (regno=%d)\n", regno); | |
714 | ||
715 | if (regno == -1) | |
716 | rombug_store_registers (); | |
717 | else | |
718 | { | |
719 | if (sr_get_debug()) | |
720 | printf ("Setting register %s to 0x%x\n", get_reg_name (regno), read_register (regno)); | |
721 | ||
722 | name = get_reg_name(regno); | |
723 | if (name == 0) return; | |
724 | printf_monitor (SET_REG, name, read_register (regno)); | |
725 | ||
726 | is_trace_mode = 0; | |
727 | expect_prompt (1); | |
728 | } | |
729 | } | |
730 | ||
731 | /* Get ready to modify the registers array. On machines which store | |
732 | individual registers, this doesn't need to do anything. On machines | |
733 | which store all the registers in one fell swoop, this makes sure | |
734 | that registers contains all the registers from the program being | |
735 | debugged. */ | |
736 | ||
737 | static void | |
738 | rombug_prepare_to_store () | |
739 | { | |
740 | /* Do nothing, since we can store individual regs */ | |
741 | } | |
742 | ||
743 | static void | |
744 | rombug_files_info () | |
745 | { | |
746 | printf ("\tAttached to %s at %d baud.\n", | |
747 | dev_name, sr_get_baud_rate()); | |
748 | } | |
749 | ||
750 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
751 | to inferior's memory at MEMADDR. Returns length moved. */ | |
752 | static int | |
753 | rombug_write_inferior_memory (memaddr, myaddr, len) | |
754 | CORE_ADDR memaddr; | |
755 | unsigned char *myaddr; | |
756 | int len; | |
757 | { | |
758 | int i; | |
759 | char buf[10]; | |
760 | ||
761 | if (monitor_log) | |
762 | fprintf (log_file, "\nIn Write_inferior_memory (memaddr=%x, len=%d)\n", memaddr, len); | |
763 | ||
764 | printf_monitor (MEM_SET_CMD, memaddr); | |
765 | for (i = 0; i < len; i++) | |
766 | { | |
767 | expect (CMD_DELIM, 1); | |
768 | printf_monitor ("%x \r", myaddr[i]); | |
769 | if (sr_get_debug()) | |
770 | printf ("\nSet 0x%x to 0x%x\n", memaddr + i, myaddr[i]); | |
771 | } | |
772 | expect (CMD_DELIM, 1); | |
773 | if (CMD_END) | |
774 | printf_monitor (CMD_END); | |
775 | is_trace_mode = 0; | |
776 | expect_prompt (1); | |
777 | ||
778 | bufaddr = 0; | |
779 | buflen = 0; | |
780 | return len; | |
781 | } | |
782 | ||
783 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result | |
784 | at debugger address MYADDR. Returns length moved. */ | |
785 | static int | |
786 | rombug_read_inferior_memory(memaddr, myaddr, len) | |
787 | CORE_ADDR memaddr; | |
788 | char *myaddr; | |
789 | int len; | |
790 | { | |
791 | int i, j; | |
792 | ||
793 | /* Number of bytes read so far. */ | |
794 | int count; | |
795 | ||
796 | /* Starting address of this pass. */ | |
797 | unsigned long startaddr; | |
798 | ||
799 | /* Number of bytes to read in this pass. */ | |
800 | int len_this_pass; | |
801 | ||
802 | if (monitor_log) | |
803 | fprintf (log_file, "\nIn Read_inferior_memory (memaddr=%x, len=%d)\n", memaddr, len); | |
804 | ||
805 | /* Note that this code works correctly if startaddr is just less | |
806 | than UINT_MAX (well, really CORE_ADDR_MAX if there was such a | |
807 | thing). That is, something like | |
808 | rombug_read_bytes (CORE_ADDR_MAX - 4, foo, 4) | |
809 | works--it never adds len To memaddr and gets 0. */ | |
810 | /* However, something like | |
811 | rombug_read_bytes (CORE_ADDR_MAX - 3, foo, 4) | |
812 | doesn't need to work. Detect it and give up if there's an attempt | |
813 | to do that. */ | |
814 | if (((memaddr - 1) + len) < memaddr) { | |
815 | errno = EIO; | |
816 | return 0; | |
817 | } | |
818 | if (bufaddr <= memaddr && (memaddr+len) <= (bufaddr+buflen)) | |
819 | { | |
820 | memcpy(myaddr, &readbuf[memaddr-bufaddr], len); | |
821 | return len; | |
822 | } | |
823 | ||
824 | startaddr = memaddr; | |
825 | count = 0; | |
826 | while (count < len) | |
827 | { | |
828 | len_this_pass = 16; | |
829 | if ((startaddr % 16) != 0) | |
830 | len_this_pass -= startaddr % 16; | |
831 | if (len_this_pass > (len - count)) | |
832 | len_this_pass = (len - count); | |
833 | if (sr_get_debug()) | |
834 | printf ("\nDisplay %d bytes at %x\n", len_this_pass, startaddr); | |
835 | ||
836 | printf_monitor (MEM_DIS_CMD, startaddr, 8); | |
837 | expect ("- ", 1); | |
838 | for (i = 0; i < 16; i++) | |
839 | { | |
840 | get_hex_byte (&readbuf[i]); | |
841 | } | |
842 | bufaddr = startaddr; | |
843 | buflen = 16; | |
844 | memcpy(&myaddr[count], readbuf, len_this_pass); | |
845 | count += len_this_pass; | |
846 | startaddr += len_this_pass; | |
847 | expect(CMD_DELIM, 1); | |
848 | } | |
849 | if (CMD_END) | |
850 | printf_monitor (CMD_END); | |
851 | is_trace_mode = 0; | |
852 | expect_prompt (1); | |
853 | ||
854 | return len; | |
855 | } | |
856 | ||
857 | /* FIXME-someday! merge these two. */ | |
858 | static int | |
859 | rombug_xfer_inferior_memory (memaddr, myaddr, len, write, target) | |
860 | CORE_ADDR memaddr; | |
861 | char *myaddr; | |
862 | int len; | |
863 | int write; | |
864 | struct target_ops *target; /* ignored */ | |
865 | { | |
866 | if (write) | |
867 | return rombug_write_inferior_memory (memaddr, myaddr, len); | |
868 | else | |
869 | return rombug_read_inferior_memory (memaddr, myaddr, len); | |
870 | } | |
871 | ||
872 | static void | |
873 | rombug_kill (args, from_tty) | |
874 | char *args; | |
875 | int from_tty; | |
876 | { | |
877 | return; /* ignore attempts to kill target system */ | |
878 | } | |
879 | ||
880 | /* Clean up when a program exits. | |
881 | The program actually lives on in the remote processor's RAM, and may be | |
882 | run again without a download. Don't leave it full of breakpoint | |
883 | instructions. */ | |
884 | ||
885 | static void | |
886 | rombug_mourn_inferior () | |
887 | { | |
888 | remove_breakpoints (); | |
889 | generic_mourn_inferior (); /* Do all the proper things now */ | |
890 | } | |
891 | ||
892 | #define MAX_MONITOR_BREAKPOINTS 16 | |
893 | ||
894 | static CORE_ADDR breakaddr[MAX_MONITOR_BREAKPOINTS] = {0}; | |
895 | ||
896 | static int | |
897 | rombug_insert_breakpoint (addr, shadow) | |
898 | CORE_ADDR addr; | |
899 | char *shadow; | |
900 | { | |
901 | int i; | |
902 | CORE_ADDR bp_addr = addr; | |
903 | int bp_size = 0; | |
904 | ||
905 | if (monitor_log) | |
906 | fprintf (log_file, "\nIn Insert_breakpoint (addr=%x)\n", addr); | |
907 | BREAKPOINT_FROM_PC (&bp_addr, &bp_size); | |
908 | ||
909 | for (i = 0; i <= MAX_MONITOR_BREAKPOINTS; i++) | |
910 | if (breakaddr[i] == 0) | |
911 | { | |
912 | breakaddr[i] = addr; | |
913 | if (sr_get_debug()) | |
914 | printf ("Breakpoint at %x\n", addr); | |
915 | rombug_read_inferior_memory (bp_addr, shadow, bp_size); | |
916 | printf_monitor(SET_BREAK_CMD, addr); | |
917 | is_trace_mode = 0; | |
918 | expect_prompt(1); | |
919 | return 0; | |
920 | } | |
921 | ||
922 | fprintf(stderr, "Too many breakpoints (> 16) for monitor\n"); | |
923 | return 1; | |
924 | } | |
925 | ||
926 | /* | |
927 | * _remove_breakpoint -- Tell the monitor to remove a breakpoint | |
928 | */ | |
929 | static int | |
930 | rombug_remove_breakpoint (addr, shadow) | |
931 | CORE_ADDR addr; | |
932 | char *shadow; | |
933 | { | |
934 | int i; | |
935 | ||
936 | if (monitor_log) | |
937 | fprintf (log_file, "\nIn Remove_breakpoint (addr=%x)\n", addr); | |
938 | ||
939 | for (i = 0; i < MAX_MONITOR_BREAKPOINTS; i++) | |
940 | if (breakaddr[i] == addr) | |
941 | { | |
942 | breakaddr[i] = 0; | |
943 | printf_monitor(CLR_BREAK_CMD, addr); | |
944 | is_trace_mode = 0; | |
945 | expect_prompt(1); | |
946 | return 0; | |
947 | } | |
948 | ||
949 | fprintf(stderr, "Can't find breakpoint associated with 0x%x\n", addr); | |
950 | return 1; | |
951 | } | |
952 | ||
953 | /* Load a file. This is usually an srecord, which is ascii. No | |
954 | protocol, just sent line by line. */ | |
955 | ||
956 | #define DOWNLOAD_LINE_SIZE 100 | |
957 | static void | |
958 | rombug_load (arg) | |
959 | char *arg; | |
960 | { | |
961 | /* this part comment out for os9* */ | |
962 | #if 0 | |
963 | FILE *download; | |
964 | char buf[DOWNLOAD_LINE_SIZE]; | |
965 | int i, bytes_read; | |
966 | ||
967 | if (sr_get_debug()) | |
968 | printf ("Loading %s to monitor\n", arg); | |
969 | ||
970 | download = fopen (arg, "r"); | |
971 | if (download == NULL) | |
972 | { | |
973 | error (sprintf (buf, "%s Does not exist", arg)); | |
974 | return; | |
975 | } | |
976 | ||
977 | printf_monitor (LOAD_CMD); | |
978 | /* expect ("Waiting for S-records from host... ", 1); */ | |
979 | ||
980 | while (!feof (download)) | |
981 | { | |
982 | bytes_read = fread (buf, sizeof (char), DOWNLOAD_LINE_SIZE, download); | |
983 | if (hashmark) | |
984 | { | |
985 | putchar ('.'); | |
986 | fflush (stdout); | |
987 | } | |
988 | ||
989 | if (SERIAL_WRITE(monitor_desc, buf, bytes_read)) { | |
990 | fprintf(stderr, "SERIAL_WRITE failed: (while downloading) %s\n", safe_strerror(errno)); | |
991 | break; | |
992 | } | |
993 | i = 0; | |
994 | while (i++ <=200000) {} ; /* Ugly HACK, probably needs flow control */ | |
995 | if (bytes_read < DOWNLOAD_LINE_SIZE) | |
996 | { | |
997 | if (!feof (download)) | |
998 | error ("Only read %d bytes\n", bytes_read); | |
999 | break; | |
1000 | } | |
1001 | } | |
1002 | ||
1003 | if (hashmark) | |
1004 | { | |
1005 | putchar ('\n'); | |
1006 | } | |
1007 | if (!feof (download)) | |
1008 | error ("Never got EOF while downloading"); | |
1009 | fclose (download); | |
1010 | #endif 0 | |
1011 | } | |
1012 | ||
1013 | /* Put a command string, in args, out to MONITOR. | |
1014 | Output from MONITOR is placed on the users terminal until the prompt | |
1015 | is seen. */ | |
1016 | ||
1017 | static void | |
1018 | rombug_command (args, fromtty) | |
1019 | char *args; | |
1020 | int fromtty; | |
1021 | { | |
1022 | if (monitor_desc == NULL) | |
1023 | error("monitor target not open."); | |
1024 | ||
1025 | if (monitor_log) | |
1026 | fprintf (log_file, "\nIn command (args=%s)\n", args); | |
1027 | ||
1028 | if (!args) | |
1029 | error("Missing command."); | |
1030 | ||
1031 | printf_monitor("%s\r", args); | |
1032 | expect_prompt(0); | |
1033 | } | |
1034 | ||
1035 | #if 0 | |
1036 | /* Connect the user directly to MONITOR. This command acts just like the | |
1037 | 'cu' or 'tip' command. Use <CR>~. or <CR>~^D to break out. */ | |
1038 | ||
1039 | static struct ttystate ttystate; | |
1040 | ||
1041 | static void | |
1042 | cleanup_tty() | |
1043 | { printf("\r\n[Exiting connect mode]\r\n"); | |
1044 | /*SERIAL_RESTORE(0, &ttystate);*/ | |
1045 | } | |
1046 | ||
1047 | static void | |
1048 | connect_command (args, fromtty) | |
1049 | char *args; | |
1050 | int fromtty; | |
1051 | { | |
1052 | fd_set readfds; | |
1053 | int numfds; | |
1054 | int c; | |
1055 | char cur_esc = 0; | |
1056 | ||
1057 | dont_repeat(); | |
1058 | ||
1059 | if (monitor_desc == NULL) | |
1060 | error("monitor target not open."); | |
1061 | ||
1062 | if (args) | |
1063 | fprintf("This command takes no args. They have been ignored.\n"); | |
1064 | ||
1065 | printf("[Entering connect mode. Use ~. or ~^D to escape]\n"); | |
1066 | ||
1067 | serial_raw(0, &ttystate); | |
1068 | ||
1069 | make_cleanup(cleanup_tty, 0); | |
1070 | ||
1071 | FD_ZERO(&readfds); | |
1072 | ||
1073 | while (1) | |
1074 | { | |
1075 | do | |
1076 | { | |
1077 | FD_SET(0, &readfds); | |
1078 | FD_SET(monitor_desc, &readfds); | |
1079 | numfds = select(sizeof(readfds)*8, &readfds, 0, 0, 0); | |
1080 | } | |
1081 | while (numfds == 0); | |
1082 | ||
1083 | if (numfds < 0) | |
1084 | perror_with_name("select"); | |
1085 | ||
1086 | if (FD_ISSET(0, &readfds)) | |
1087 | { /* tty input, send to monitor */ | |
1088 | c = getchar(); | |
1089 | if (c < 0) | |
1090 | perror_with_name("connect"); | |
1091 | ||
1092 | printf_monitor("%c", c); | |
1093 | switch (cur_esc) | |
1094 | { | |
1095 | case 0: | |
1096 | if (c == '\r') | |
1097 | cur_esc = c; | |
1098 | break; | |
1099 | case '\r': | |
1100 | if (c == '~') | |
1101 | cur_esc = c; | |
1102 | else | |
1103 | cur_esc = 0; | |
1104 | break; | |
1105 | case '~': | |
1106 | if (c == '.' || c == '\004') | |
1107 | return; | |
1108 | else | |
1109 | cur_esc = 0; | |
1110 | } | |
1111 | } | |
1112 | ||
1113 | if (FD_ISSET(monitor_desc, &readfds)) | |
1114 | { | |
1115 | while (1) | |
1116 | { | |
1117 | c = readchar(0); | |
1118 | if (c < 0) | |
1119 | break; | |
1120 | putchar(c); | |
1121 | } | |
1122 | fflush(stdout); | |
1123 | } | |
1124 | } | |
1125 | } | |
1126 | #endif | |
1127 | ||
1128 | /* | |
1129 | * Define the monitor command strings. Since these are passed directly | |
1130 | * through to a printf style function, we need can include formatting | |
1131 | * strings. We also need a CR or LF on the end. | |
1132 | */ | |
1133 | #warning FIXME: monitor interface pattern strings, stale struct decl | |
1134 | struct monitor_ops rombug_cmds = { | |
1135 | "g \r", /* execute or usually GO command */ | |
1136 | "g \r", /* continue command */ | |
1137 | "t \r", /* single step */ | |
1138 | "b %x\r", /* set a breakpoint */ | |
1139 | "k %x\r", /* clear a breakpoint */ | |
1140 | "c %x\r", /* set memory to a value */ | |
1141 | "d %x %d\r", /* display memory */ | |
1142 | "$%08X", /* prompt memory commands use */ | |
1143 | ".%s %x\r", /* set a register */ | |
1144 | ":", /* delimiter between registers */ | |
1145 | ". \r", /* read a register */ | |
1146 | "mf \r", /* download command */ | |
1147 | "RomBug: ", /* monitor command prompt */ | |
1148 | ": ", /* end-of-command delimitor */ | |
1149 | ".\r" /* optional command terminator */ | |
1150 | }; | |
1151 | ||
1152 | struct target_ops rombug_ops ; | |
1153 | ||
1154 | static void | |
1155 | init_rombug_ops(void) | |
1156 | { | |
1157 | rombug_ops.to_shortname = "rombug"; | |
1158 | rombug_ops.to_longname = "Microware's ROMBUG debug monitor"; | |
1159 | rombug_ops.to_doc = "Use a remote computer running the ROMBUG debug monitor.\n\ | |
1160 | Specify the serial device it is connected to (e.g. /dev/ttya).", | |
1161 | rombug_ops.to_open = rombug_open; | |
1162 | rombug_ops.to_close = rombug_close; | |
1163 | rombug_ops.to_attach = 0; | |
1164 | rombug_ops.to_post_attach = NULL; | |
1165 | rombug_ops.to_require_attach = NULL; | |
1166 | rombug_ops.to_detach = rombug_detach; | |
1167 | rombug_ops.to_require_detach = NULL; | |
1168 | rombug_ops.to_resume = rombug_resume; | |
1169 | rombug_ops.to_wait = rombug_wait; | |
1170 | rombug_ops.to_post_wait = NULL; | |
1171 | rombug_ops.to_fetch_registers = rombug_fetch_register; | |
1172 | rombug_ops.to_store_registers = rombug_store_register; | |
1173 | rombug_ops.to_prepare_to_store = rombug_prepare_to_store; | |
1174 | rombug_ops.to_xfer_memory = rombug_xfer_inferior_memory; | |
1175 | rombug_ops.to_files_info = rombug_files_info; | |
1176 | rombug_ops.to_insert_breakpoint = rombug_insert_breakpoint; | |
1177 | rombug_ops.to_remove_breakpoint = rombug_remove_breakpoint; /* Breakpoints */ | |
1178 | rombug_ops.to_terminal_init = 0; | |
1179 | rombug_ops.to_terminal_inferior = 0; | |
1180 | rombug_ops.to_terminal_ours_for_output = 0; | |
1181 | rombug_ops.to_terminal_ours = 0; | |
1182 | rombug_ops.to_terminal_info = 0; /* Terminal handling */ | |
1183 | rombug_ops.to_kill = rombug_kill; | |
1184 | rombug_ops.to_load = rombug_load; /* load */ | |
1185 | rombug_ops.to_lookup_symbol = rombug_link; /* lookup_symbol */ | |
1186 | rombug_ops.to_create_inferior = rombug_create_inferior; | |
1187 | rombug_ops.to_post_startup_inferior = NULL; | |
1188 | rombug_ops.to_acknowledge_created_inferior = NULL; | |
1189 | rombug_ops.to_clone_and_follow_inferior = NULL; | |
1190 | rombug_ops.to_post_follow_inferior_by_clone = NULL; | |
1191 | rombug_ops.to_insert_fork_catchpoint = NULL; | |
1192 | rombug_ops.to_remove_fork_catchpoint = NULL; | |
1193 | rombug_ops.to_insert_vfork_catchpoint = NULL; | |
1194 | rombug_ops.to_remove_vfork_catchpoint = NULL; | |
1195 | rombug_ops.to_has_forked = NULL; | |
1196 | rombug_ops.to_has_vforked = NULL; | |
1197 | rombug_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
1198 | rombug_ops.to_post_follow_vfork = NULL; | |
1199 | rombug_ops.to_insert_exec_catchpoint = NULL; | |
1200 | rombug_ops.to_remove_exec_catchpoint = NULL; | |
1201 | rombug_ops.to_has_execd = NULL; | |
1202 | rombug_ops.to_reported_exec_events_per_exec_call = NULL; | |
1203 | rombug_ops.to_has_exited = NULL; | |
1204 | rombug_ops.to_mourn_inferior = rombug_mourn_inferior; | |
1205 | rombug_ops.to_can_run = 0; /* can_run */ | |
1206 | rombug_ops.to_notice_signals = 0; /* notice_signals */ | |
1207 | rombug_ops.to_thread_alive = 0; | |
1208 | rombug_ops.to_stop = 0; /* to_stop */ | |
1209 | rombug_ops.to_pid_to_exec_file = NULL; | |
1210 | rombug_ops.to_core_file_to_sym_file = NULL; | |
1211 | rombug_ops.to_stratum = process_stratum; | |
1212 | rombug_ops.DONT_USE = 0; /* next */ | |
1213 | rombug_ops.to_has_all_memory = 1; | |
1214 | rombug_ops.to_has_memory = 1; | |
1215 | rombug_ops.to_has_stack = 1; | |
1216 | rombug_ops.to_has_registers = 1; | |
1217 | rombug_ops.to_has_execution = 1; /* has execution */ | |
1218 | rombug_ops.to_sections = 0; | |
1219 | rombug_ops.to_sections_end = 0; /* Section pointers */ | |
1220 | rombug_ops.to_magic = OPS_MAGIC; /* Always the last thing */ | |
1221 | } | |
1222 | ||
1223 | void | |
1224 | _initialize_remote_os9k () | |
1225 | { | |
1226 | init_rombug_ops() ; | |
1227 | add_target (&rombug_ops); | |
1228 | ||
1229 | add_show_from_set ( | |
1230 | add_set_cmd ("hash", no_class, var_boolean, (char *)&hashmark, | |
1231 | "Set display of activity while downloading a file.\nWhen enabled, a period \'.\' is displayed.", | |
1232 | &setlist), | |
1233 | &showlist); | |
1234 | ||
1235 | add_show_from_set ( | |
1236 | add_set_cmd ("timeout", no_class, var_zinteger, | |
1237 | (char *) &timeout, | |
1238 | "Set timeout in seconds for remote MIPS serial I/O.", | |
1239 | &setlist), | |
1240 | &showlist); | |
1241 | ||
1242 | add_show_from_set ( | |
1243 | add_set_cmd ("remotelog", no_class, var_zinteger, | |
1244 | (char *) &monitor_log, | |
1245 | "Set monitor activity log on(=1) or off(=0).", | |
1246 | &setlist), | |
1247 | &showlist); | |
1248 | ||
1249 | add_show_from_set ( | |
1250 | add_set_cmd ("remotexon", no_class, var_zinteger, | |
1251 | (char *) &tty_xon, | |
1252 | "Set remote tty line XON control", | |
1253 | &setlist), | |
1254 | &showlist); | |
1255 | ||
1256 | add_show_from_set ( | |
1257 | add_set_cmd ("remotexoff", no_class, var_zinteger, | |
1258 | (char *) &tty_xoff, | |
1259 | "Set remote tty line XOFF control", | |
1260 | &setlist), | |
1261 | &showlist); | |
1262 | ||
1263 | add_com ("rombug <command>", class_obscure, rombug_command, | |
1264 | "Send a command to the debug monitor."); | |
1265 | #if 0 | |
1266 | add_com ("connect", class_obscure, connect_command, | |
1267 | "Connect the terminal directly up to a serial based command monitor.\nUse <CR>~. or <CR>~^D to break out."); | |
1268 | #endif | |
1269 | } |