Commit | Line | Data |
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5905161c RP |
1 | /* Remote debugging interface for Motorola's MVME187BUG monitor, an embedded |
2 | monitor for the m88k. | |
3 | ||
4 | Copyright 1992, 1993 Free Software Foundation, Inc. | |
5 | Contributed by Cygnus Support. Written by K. Richard Pixley. | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
22 | ||
23 | #include "defs.h" | |
24 | #include "inferior.h" | |
25 | #include "wait.h" | |
26 | #include "value.h" | |
27 | #include <string.h> | |
28 | #include <ctype.h> | |
29 | #include <fcntl.h> | |
30 | #include <signal.h> | |
31 | #include <setjmp.h> | |
32 | #include <errno.h> | |
33 | #include "terminal.h" | |
34 | #include "target.h" | |
35 | #include "gdbcore.h" | |
36 | #include "serial.h" | |
37 | ||
38 | /* External data declarations */ | |
39 | extern int stop_soon_quietly; /* for wait_for_inferior */ | |
40 | ||
41 | /* Forward data declarations */ | |
42 | static struct target_ops bug_ops; /* Forward declaration */ | |
43 | ||
44 | /* Forward function declarations */ | |
45 | static void bug_fetch_registers (); | |
46 | static int bug_store_registers (); | |
47 | static void bug_close (); | |
48 | static int bug_clear_breakpoints (); | |
49 | ||
50 | static int quiet = 1; | |
51 | ||
52 | ||
53 | serial_t desc; | |
54 | ||
55 | /***********************************************************************/ | |
56 | /* Caching stuff stolen from remote-nindy.c */ | |
57 | ||
58 | /* The data cache records all the data read from the remote machine | |
59 | since the last time it stopped. | |
60 | ||
61 | Each cache block holds LINE_SIZE bytes of data | |
62 | starting at a multiple-of-LINE_SIZE address. */ | |
63 | ||
64 | #define LINE_SIZE_POWER 4 | |
65 | #define LINE_SIZE (1<<LINE_SIZE_POWER) /* eg 1<<3 == 8 */ | |
66 | #define LINE_SIZE_MASK ((LINE_SIZE-1)) /* eg 7*2+1= 111*/ | |
67 | #define DCACHE_SIZE 64 /* Number of cache blocks */ | |
68 | #define XFORM(x) ((x&LINE_SIZE_MASK)>>2) | |
69 | struct dcache_block | |
70 | { | |
71 | struct dcache_block *next, *last; | |
72 | unsigned int addr; /* Address for which data is recorded. */ | |
73 | int data[LINE_SIZE / sizeof (int)]; | |
74 | }; | |
75 | ||
76 | struct dcache_block dcache_free, dcache_valid; | |
77 | ||
78 | /* Free all the data cache blocks, thus discarding all cached data. */ | |
79 | static | |
80 | void | |
81 | dcache_flush () | |
82 | { | |
83 | register struct dcache_block *db; | |
84 | ||
85 | while ((db = dcache_valid.next) != &dcache_valid) | |
86 | { | |
87 | remque (db); | |
88 | insque (db, &dcache_free); | |
89 | } | |
90 | } | |
91 | ||
92 | /* | |
93 | * If addr is present in the dcache, return the address of the block | |
94 | * containing it. | |
95 | */ | |
96 | static | |
97 | struct dcache_block * | |
98 | dcache_hit (addr) | |
99 | unsigned int addr; | |
100 | { | |
101 | register struct dcache_block *db; | |
102 | ||
103 | if (addr & 3) | |
104 | abort (); | |
105 | ||
106 | /* Search all cache blocks for one that is at this address. */ | |
107 | db = dcache_valid.next; | |
108 | while (db != &dcache_valid) | |
109 | { | |
110 | if ((addr & ~LINE_SIZE_MASK) == db->addr) | |
111 | return db; | |
112 | db = db->next; | |
113 | } | |
114 | return NULL; | |
115 | } | |
116 | ||
117 | /* Return the int data at address ADDR in dcache block DC. */ | |
118 | static | |
119 | int | |
120 | dcache_value (db, addr) | |
121 | struct dcache_block *db; | |
122 | unsigned int addr; | |
123 | { | |
124 | if (addr & 3) | |
125 | abort (); | |
126 | return (db->data[XFORM (addr)]); | |
127 | } | |
128 | ||
129 | /* Get a free cache block, put or keep it on the valid list, | |
130 | and return its address. The caller should store into the block | |
131 | the address and data that it describes, then remque it from the | |
132 | free list and insert it into the valid list. This procedure | |
133 | prevents errors from creeping in if a ninMemGet is interrupted | |
134 | (which used to put garbage blocks in the valid list...). */ | |
135 | static | |
136 | struct dcache_block * | |
137 | dcache_alloc () | |
138 | { | |
139 | register struct dcache_block *db; | |
140 | ||
141 | if ((db = dcache_free.next) == &dcache_free) | |
142 | { | |
143 | /* If we can't get one from the free list, take last valid and put | |
144 | it on the free list. */ | |
145 | db = dcache_valid.last; | |
146 | remque (db); | |
147 | insque (db, &dcache_free); | |
148 | } | |
149 | ||
150 | remque (db); | |
151 | insque (db, &dcache_valid); | |
152 | return (db); | |
153 | } | |
154 | ||
155 | /* Return the contents of the word at address ADDR in the remote machine, | |
156 | using the data cache. */ | |
157 | static | |
158 | int | |
159 | dcache_fetch (addr) | |
160 | CORE_ADDR addr; | |
161 | { | |
162 | register struct dcache_block *db; | |
163 | ||
164 | db = dcache_hit (addr); | |
165 | if (db == 0) | |
166 | { | |
167 | db = dcache_alloc (); | |
168 | immediate_quit++; | |
169 | bug_read_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE); | |
170 | immediate_quit--; | |
171 | db->addr = addr & ~LINE_SIZE_MASK; | |
172 | remque (db); /* Off the free list */ | |
173 | insque (db, &dcache_valid); /* On the valid list */ | |
174 | } | |
175 | return (dcache_value (db, addr)); | |
176 | } | |
177 | ||
178 | /* Write the word at ADDR both in the data cache and in the remote machine. */ | |
179 | static void | |
180 | dcache_poke (addr, data) | |
181 | CORE_ADDR addr; | |
182 | int data; | |
183 | { | |
184 | register struct dcache_block *db; | |
185 | ||
186 | /* First make sure the word is IN the cache. DB is its cache block. */ | |
187 | db = dcache_hit (addr); | |
188 | if (db == 0) | |
189 | { | |
190 | db = dcache_alloc (); | |
191 | immediate_quit++; | |
192 | bug_write_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE); | |
193 | immediate_quit--; | |
194 | db->addr = addr & ~LINE_SIZE_MASK; | |
195 | remque (db); /* Off the free list */ | |
196 | insque (db, &dcache_valid); /* On the valid list */ | |
197 | } | |
198 | ||
199 | /* Modify the word in the cache. */ | |
200 | db->data[XFORM (addr)] = data; | |
201 | ||
202 | /* Send the changed word. */ | |
203 | immediate_quit++; | |
204 | bug_write_inferior_memory (addr, (unsigned char *) &data, 4); | |
205 | immediate_quit--; | |
206 | } | |
207 | ||
208 | /* The cache itself. */ | |
209 | struct dcache_block the_cache[DCACHE_SIZE]; | |
210 | ||
211 | /* Initialize the data cache. */ | |
212 | static void | |
213 | dcache_init () | |
214 | { | |
215 | register i; | |
216 | register struct dcache_block *db; | |
217 | ||
218 | db = the_cache; | |
219 | dcache_free.next = dcache_free.last = &dcache_free; | |
220 | dcache_valid.next = dcache_valid.last = &dcache_valid; | |
221 | for (i = 0; i < DCACHE_SIZE; i++, db++) | |
222 | insque (db, &dcache_free); | |
223 | } | |
224 | ||
225 | /*********************************************************************** | |
226 | * I/O stuff stolen from remote-eb.c | |
227 | ***********************************************************************/ | |
228 | ||
229 | static int timeout = 2; | |
230 | ||
231 | static const char *dev_name; | |
232 | ||
233 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that | |
234 | bug_open knows that we don't have a file open when the program | |
235 | starts. */ | |
236 | ||
237 | int is_open = 0; | |
238 | int | |
239 | check_open () | |
240 | { | |
241 | if (!is_open) | |
242 | { | |
243 | error ("remote device not open"); | |
244 | } | |
245 | } | |
246 | ||
247 | #define ON 1 | |
248 | #define OFF 0 | |
249 | ||
250 | /* Read a character from the remote system, doing all the fancy | |
251 | timeout stuff. */ | |
252 | static int | |
253 | readchar () | |
254 | { | |
255 | int buf; | |
256 | ||
257 | buf = SERIAL_READCHAR (desc, timeout); | |
258 | ||
259 | if (buf == SERIAL_TIMEOUT) | |
260 | error ("Timeout reading from remote system."); | |
261 | ||
262 | if (!quiet) | |
263 | printf ("%c", buf); | |
264 | ||
265 | return buf & 0x7f; | |
266 | } | |
267 | ||
268 | static int | |
269 | readchar_nofail () | |
270 | { | |
271 | int buf; | |
272 | ||
273 | buf = SERIAL_READCHAR (desc, timeout); | |
274 | if (buf == SERIAL_TIMEOUT) | |
275 | buf = 0; | |
276 | if (!quiet) | |
277 | printf ("%c", buf); | |
278 | ||
279 | return buf & 0x7f; | |
280 | ||
281 | } | |
282 | ||
283 | /* Keep discarding input from the remote system, until STRING is found. | |
284 | Let the user break out immediately. */ | |
285 | static void | |
286 | expect (string) | |
287 | char *string; | |
288 | { | |
289 | char *p = string; | |
290 | ||
291 | immediate_quit = 1; | |
292 | while (1) | |
293 | { | |
294 | if (readchar () == *p) | |
295 | { | |
296 | p++; | |
297 | if (*p == '\0') | |
298 | { | |
299 | immediate_quit = 0; | |
300 | return; | |
301 | } | |
302 | } | |
303 | else | |
304 | p = string; | |
305 | } | |
306 | } | |
307 | ||
308 | /* Keep discarding input until we see the bug prompt. | |
309 | ||
310 | The convention for dealing with the prompt is that you | |
311 | o give your command | |
312 | o *then* wait for the prompt. | |
313 | ||
314 | Thus the last thing that a procedure does with the serial line | |
315 | will be an expect_prompt(). Exception: bug_resume does not | |
316 | wait for the prompt, because the terminal is being handed over | |
317 | to the inferior. However, the next thing which happens after that | |
318 | is a bug_wait which does wait for the prompt. | |
319 | Note that this includes abnormal exit, e.g. error(). This is | |
320 | necessary to prevent getting into states from which we can't | |
321 | recover. */ | |
322 | static void | |
323 | expect_prompt () | |
324 | { | |
325 | expect ("Bug>"); | |
326 | } | |
327 | ||
328 | /* Get a hex digit from the remote system & return its value. | |
329 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ | |
330 | static int | |
331 | get_hex_digit (ignore_space) | |
332 | int ignore_space; | |
333 | { | |
334 | int ch; | |
335 | ||
336 | while (1) | |
337 | { | |
338 | ch = readchar (); | |
339 | if (ch >= '0' && ch <= '9') | |
340 | return ch - '0'; | |
341 | else if (ch >= 'A' && ch <= 'F') | |
342 | return ch - 'A' + 10; | |
343 | else if (ch >= 'a' && ch <= 'f') | |
344 | return ch - 'a' + 10; | |
345 | else if (ch == ' ' && ignore_space) | |
346 | ; | |
347 | else | |
348 | { | |
349 | expect_prompt (); | |
350 | error ("Invalid hex digit from remote system."); | |
351 | } | |
352 | } | |
353 | } | |
354 | ||
355 | /* Get a byte from bug_desc and put it in *BYT. Accept any number | |
356 | leading spaces. */ | |
357 | static void | |
358 | get_hex_byte (byt) | |
359 | char *byt; | |
360 | { | |
361 | int val; | |
362 | ||
363 | val = get_hex_digit (1) << 4; | |
364 | val |= get_hex_digit (0); | |
365 | *byt = val; | |
366 | } | |
367 | ||
368 | /* Read a 32-bit hex word from the bug, preceded by a space */ | |
369 | static long | |
370 | get_hex_word () | |
371 | { | |
372 | long val; | |
373 | int j; | |
374 | ||
375 | val = 0; | |
376 | for (j = 0; j < 8; j++) | |
377 | val = (val << 4) + get_hex_digit (j == 0); | |
378 | return val; | |
379 | } | |
380 | ||
381 | /* Called when SIGALRM signal sent due to alarm() timeout. */ | |
382 | ||
383 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
384 | NEED_ARTIFICIAL_TRAP calls to bug_wait should just return | |
385 | SIGTRAP without actually waiting for anything. */ | |
386 | ||
387 | static int need_artificial_trap = 0; | |
388 | ||
389 | void | |
390 | bug_kill (arg, from_tty) | |
391 | char *arg; | |
392 | int from_tty; | |
393 | { | |
394 | ||
395 | } | |
396 | ||
397 | /* | |
398 | * Download a file specified in 'args', to the bug. | |
399 | */ | |
400 | static void | |
401 | bug_load (args, fromtty) | |
402 | char *args; | |
403 | int fromtty; | |
404 | { | |
405 | bfd *abfd; | |
406 | asection *s; | |
407 | int n; | |
408 | char buffer[1024]; | |
409 | ||
410 | check_open (); | |
411 | ||
412 | dcache_flush (); | |
413 | inferior_pid = 0; | |
414 | abfd = bfd_openr (args, 0); | |
415 | if (!abfd) | |
416 | { | |
417 | printf_filtered ("Unable to open file %s\n", args); | |
418 | return; | |
419 | } | |
420 | ||
421 | if (bfd_check_format (abfd, bfd_object) == 0) | |
422 | { | |
423 | printf_filtered ("File is not an object file\n"); | |
424 | return; | |
425 | } | |
426 | ||
427 | s = abfd->sections; | |
428 | while (s != (asection *) NULL) | |
429 | { | |
430 | if (s->flags & SEC_LOAD) | |
431 | { | |
432 | int i; | |
433 | ||
434 | #define DELTA (1024) | |
435 | char *buffer = xmalloc (DELTA); | |
436 | ||
437 | printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma, s->vma + s->_raw_size); | |
438 | for (i = 0; i < s->_raw_size; i += DELTA) | |
439 | { | |
440 | int delta = DELTA; | |
441 | ||
442 | if (delta > s->_raw_size - i) | |
443 | delta = s->_raw_size - i; | |
444 | ||
445 | bfd_get_section_contents (abfd, s, buffer, i, delta); | |
446 | bug_write_inferior_memory (s->vma + i, buffer, delta); | |
447 | printf_filtered ("*"); | |
448 | fflush (stdout); | |
449 | } | |
450 | printf_filtered ("\n"); | |
451 | free (buffer); | |
452 | } | |
453 | s = s->next; | |
454 | } | |
455 | sprintf (buffer, "rs ip %x", abfd->start_address); | |
456 | bug_write_cr (buffer); | |
457 | expect_prompt (); | |
458 | } | |
459 | ||
460 | /* This is called not only when we first attach, but also when the | |
461 | user types "run" after having attached. */ | |
462 | void | |
463 | bug_create_inferior (execfile, args, env) | |
464 | char *execfile; | |
465 | char *args; | |
466 | char **env; | |
467 | { | |
468 | int entry_pt; | |
469 | char buffer[100]; | |
470 | ||
471 | if (args && *args) | |
472 | error ("Can't pass arguments to remote bug process."); | |
473 | ||
474 | if (execfile == 0 || exec_bfd == 0) | |
475 | error ("No exec file specified"); | |
476 | ||
477 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
478 | check_open (); | |
479 | ||
480 | bug_kill (NULL, NULL); | |
481 | bug_clear_breakpoints (); | |
482 | init_wait_for_inferior (); | |
483 | bug_write_cr (""); | |
484 | expect_prompt (); | |
485 | ||
486 | insert_breakpoints (); /* Needed to get correct instruction in cache */ | |
487 | proceed (entry_pt, -1, 0); | |
488 | } | |
489 | ||
490 | /* Open a connection to a remote debugger. | |
491 | NAME is the filename used for communication, then a space, | |
492 | then the baud rate. | |
493 | */ | |
494 | ||
495 | static char * | |
496 | find_end_of_word (s) | |
497 | char *s; | |
498 | { | |
499 | while (*s && !isspace (*s)) | |
500 | s++; | |
501 | return s; | |
502 | } | |
503 | ||
504 | static char * | |
505 | get_word (p) | |
506 | char **p; | |
507 | { | |
508 | char *s = *p; | |
509 | char *word; | |
510 | char *copy; | |
511 | size_t len; | |
512 | ||
513 | while (isspace (*s)) | |
514 | s++; | |
515 | ||
516 | word = s; | |
517 | ||
518 | len = 0; | |
519 | ||
520 | while (*s && !isspace (*s)) | |
521 | { | |
522 | s++; | |
523 | len++; | |
524 | ||
525 | } | |
526 | copy = xmalloc (len + 1); | |
527 | memcpy (copy, word, len); | |
528 | copy[len] = 0; | |
529 | *p = s; | |
530 | return copy; | |
531 | } | |
532 | ||
533 | static int baudrate = 9600; | |
534 | ||
535 | #if 0 | |
536 | static int | |
537 | is_baudrate_right () | |
538 | { | |
539 | int ok; | |
540 | ||
541 | /* Put this port into NORMAL mode, send the 'normal' character */ | |
542 | ||
543 | bug_write ("\001", 1); /* Control A */ | |
544 | bug_write ("\r", 1); /* Cr */ | |
545 | ||
546 | while (1) | |
547 | { | |
548 | ok = SERIAL_READCHAR (desc, timeout); | |
549 | if (ok < 0) | |
550 | break; | |
551 | } | |
552 | ||
553 | bug_write ("r", 1); | |
554 | ||
555 | if (readchar_nofail () == 'r') | |
556 | return 1; | |
557 | ||
558 | /* Not the right baudrate, or the board's not on */ | |
559 | return 0; | |
560 | } | |
561 | #endif /* not */ | |
562 | ||
563 | static void | |
564 | set_rate () | |
565 | { | |
566 | if (!SERIAL_SETBAUDRATE (desc, baudrate)) | |
567 | error ("Can't set baudrate"); | |
568 | } | |
569 | ||
570 | ||
571 | static void | |
572 | bug_open (name, from_tty) | |
573 | char *name; | |
574 | int from_tty; | |
575 | { | |
576 | unsigned int prl; | |
577 | char *p; | |
578 | ||
579 | push_target (&bug_ops); | |
580 | ||
581 | if (name == 0) | |
582 | { | |
583 | name = ""; | |
584 | } | |
585 | if (is_open) | |
586 | bug_close (0); | |
587 | dev_name = strdup (name); | |
588 | ||
589 | if (!(desc = SERIAL_OPEN (dev_name))) | |
590 | perror_with_name ((char *) dev_name); | |
591 | ||
592 | SERIAL_RAW (desc); | |
593 | is_open = 1; | |
594 | ||
595 | dcache_init (); | |
596 | ||
597 | /* Hello? Are you there? */ | |
598 | SERIAL_WRITE (desc, "\r", 1); | |
599 | expect_prompt (); | |
600 | ||
601 | /* Clear any break points */ | |
602 | bug_clear_breakpoints (); | |
603 | ||
604 | printf_filtered ("Connected to remote 187bug system.\n"); | |
605 | } | |
606 | ||
607 | /* Close out all files and local state before this target loses control. */ | |
608 | ||
609 | static void | |
610 | bug_close (quitting) | |
611 | int quitting; | |
612 | { | |
613 | /* Clear any break points */ | |
614 | bug_clear_breakpoints (); | |
615 | ||
616 | if (is_open) | |
617 | SERIAL_CLOSE (desc); | |
618 | ||
619 | is_open = 0; | |
620 | } | |
621 | ||
622 | /* Terminate the open connection to the remote debugger. | |
623 | Use this when you want to detach and do something else | |
624 | with your gdb. */ | |
625 | void | |
626 | bug_detach (args, from_tty) | |
627 | char *args; | |
628 | int from_tty; | |
629 | { | |
630 | if (is_open) | |
631 | bug_clear_breakpoints (); | |
632 | ||
633 | pop_target (); /* calls bug_close to do the real work */ | |
634 | ||
635 | if (from_tty) | |
636 | printf_filtered ("Ending remote %s debugging\n", target_shortname); | |
637 | } | |
638 | ||
639 | /* Tell the remote machine to resume. */ | |
640 | ||
641 | void | |
642 | bug_resume (step, sig) | |
643 | int step, sig; | |
644 | { | |
645 | dcache_flush (); | |
646 | ||
647 | if (step) | |
648 | { | |
649 | bug_write_cr("t"); | |
650 | ||
651 | /* Force the next bug_wait to return a trap. Not doing anything | |
652 | about I/O from the target means that the user has to type | |
653 | "continue" to see any. FIXME, this should be fixed. */ | |
654 | need_artificial_trap = 1; | |
655 | } | |
656 | else | |
657 | bug_write_cr ("g"); | |
658 | ||
659 | return; | |
660 | } | |
661 | ||
662 | /* Wait until the remote machine stops, then return, | |
663 | storing status in STATUS just as `wait' would. */ | |
664 | ||
665 | int | |
666 | not_bug_wait (status) | |
667 | WAITTYPE *status; | |
668 | { | |
669 | int old_timeout; | |
670 | int old_quit; | |
671 | int i; | |
672 | ||
673 | expect("Effective address: "); | |
674 | i = get_hex_word(); | |
675 | expect("\r"); | |
676 | ||
677 | WSETEXIT ((*status), 0); | |
678 | ||
679 | old_timeout = timeout; | |
680 | timeout = 99999; /* while user program runs. */ | |
681 | old_quit = immediate_quit; | |
682 | immediate_quit = 1; /* helps ability to quit. */ | |
683 | ||
684 | while (strchr("\n\r", i = readchar()) != NULL) ;; | |
685 | ||
686 | immediate_quit = old_quit; | |
687 | timeout = old_timeout; | |
688 | ||
689 | if (i == 'A') | |
690 | { | |
691 | /* At Breakpoint */ | |
692 | expect("t Breakpoint"); | |
693 | WSETSTOP ((*status), SIGTRAP); | |
694 | ||
695 | } | |
696 | else | |
697 | { | |
698 | /* finished cleanly */ | |
699 | ; | |
700 | } | |
701 | ||
702 | expect_prompt(); | |
703 | } | |
704 | ||
705 | int | |
706 | bug_wait (status) | |
707 | WAITTYPE *status; | |
708 | { | |
709 | /* Strings to look for. '?' means match any single character. | |
710 | Note that with the algorithm we use, the initial character | |
711 | of the string cannot recur in the string, or we will not | |
712 | find some cases of the string in the input. */ | |
713 | ||
714 | static char bpt[] = "At Breakpoint"; | |
715 | static char exitmsg[] = "????-Bug>"; | |
716 | char *bp = bpt; | |
717 | char *ep = exitmsg; | |
718 | ||
719 | /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */ | |
720 | char swallowed[50]; | |
721 | ||
722 | /* Current position in swallowed. */ | |
723 | char *swallowed_p = swallowed; | |
724 | ||
725 | int ch; | |
726 | int ch_handled; | |
727 | int old_timeout = timeout; | |
728 | int old_immediate_quit = immediate_quit; | |
729 | int swallowed_cr = 0; | |
730 | ||
731 | WSETEXIT ((*status), 0); | |
732 | ||
733 | if (need_artificial_trap != 0) | |
734 | { | |
735 | WSETSTOP ((*status), SIGTRAP); | |
736 | need_artificial_trap--; | |
737 | /* user output from the target can be discarded here. (?) */ | |
738 | expect_prompt(); | |
739 | return 0; | |
740 | } | |
741 | ||
742 | /* read off leftovers from resume */ | |
743 | expect("Effective address: "); | |
744 | (void) get_hex_word(); | |
745 | while (strchr("\r\n", ch = readchar()) != NULL) ;; | |
746 | ||
747 | timeout = 99999; /* Don't time out -- user program is running. */ | |
748 | immediate_quit = 1; /* Helps ability to QUIT */ | |
749 | while (1) | |
750 | { | |
751 | QUIT; /* Let user quit and leave process running */ | |
752 | ch_handled = 0; | |
753 | if (ch == *bp) | |
754 | { | |
755 | bp++; | |
756 | if (*bp == '\0') | |
757 | break; | |
758 | ch_handled = 1; | |
759 | ||
760 | *swallowed_p++ = ch; | |
761 | } | |
762 | else | |
763 | { | |
764 | bp = bpt; | |
765 | } | |
766 | if (ch == *ep || *ep == '?') | |
767 | { | |
768 | ep++; | |
769 | if (*ep == '\0') | |
770 | break; | |
771 | ||
772 | if (!ch_handled) | |
773 | *swallowed_p++ = ch; | |
774 | ch_handled = 1; | |
775 | } | |
776 | else | |
777 | { | |
778 | ep = exitmsg; | |
779 | } | |
780 | ||
781 | if (!ch_handled) | |
782 | { | |
783 | char *p; | |
784 | ||
785 | /* Print out any characters which have been swallowed. */ | |
786 | for (p = swallowed; p < swallowed_p; ++p) | |
787 | putc (*p, stdout); | |
788 | swallowed_p = swallowed; | |
789 | ||
790 | if ((ch != '\r' && ch != '\n') || swallowed_cr > 10) | |
791 | { | |
792 | putc (ch, stdout); | |
793 | swallowed_cr = 10; | |
794 | } | |
795 | swallowed_cr++; | |
796 | ||
797 | } | |
798 | ||
799 | ch = readchar (); | |
800 | } | |
801 | if (*bp == '\0') | |
802 | { | |
803 | WSETSTOP ((*status), SIGTRAP); | |
804 | expect_prompt (); | |
805 | } | |
806 | else | |
807 | { | |
808 | WSETEXIT ((*status), 0); | |
809 | } | |
810 | ||
811 | timeout = old_timeout; | |
812 | immediate_quit = old_immediate_quit; | |
813 | return 0; | |
814 | } | |
815 | ||
816 | /* Return the name of register number REGNO | |
817 | in the form input and output by bug. | |
818 | ||
819 | Returns a pointer to a static buffer containing the answer. */ | |
820 | static char * | |
821 | get_reg_name (regno) | |
822 | int regno; | |
823 | { | |
824 | static char *rn[] = { | |
825 | "r00", "r01", "r02", "r03", "r04", "r05", "r06", "r07", | |
826 | "r08", "r09", "r10", "r11", "r12", "r13", "r14", "r15", | |
827 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", | |
828 | "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", | |
829 | ||
830 | /* these get confusing because we omit a few and switch some ordering around. */ | |
831 | ||
832 | "cr01", /* 32 = psr */ | |
833 | "fcr62", /* 33 = fpsr*/ | |
834 | "fcr63", /* 34 = fpcr */ | |
835 | "cr04", /* 35 = sxip */ | |
836 | "cr05", /* 36 = snip */ | |
837 | "cr06", /* 37 = sfip */ | |
838 | }; | |
839 | ||
840 | return rn[regno]; | |
841 | } | |
842 | ||
843 | static int | |
844 | gethex (length, start, ok) | |
845 | unsigned int length; | |
846 | char *start; | |
847 | int *ok; | |
848 | { | |
849 | int result = 0; | |
850 | ||
851 | while (length--) | |
852 | { | |
853 | result <<= 4; | |
854 | if (*start >= 'a' && *start <= 'f') | |
855 | { | |
856 | result += *start - 'a' + 10; | |
857 | } | |
858 | else if (*start >= 'A' && *start <= 'F') | |
859 | { | |
860 | result += *start - 'A' + 10; | |
861 | } | |
862 | else if (*start >= '0' && *start <= '9') | |
863 | { | |
864 | result += *start - '0'; | |
865 | } | |
866 | else | |
867 | *ok = 0; | |
868 | start++; | |
869 | ||
870 | } | |
871 | return result; | |
872 | } | |
873 | static int | |
874 | timed_read (buf, n, timeout) | |
875 | char *buf; | |
876 | ||
877 | { | |
878 | int i; | |
879 | char c; | |
880 | ||
881 | i = 0; | |
882 | while (i < n) | |
883 | { | |
884 | c = readchar (); | |
885 | ||
886 | if (c == 0) | |
887 | return i; | |
888 | buf[i] = c; | |
889 | i++; | |
890 | ||
891 | } | |
892 | return i; | |
893 | } | |
894 | ||
895 | bug_write (a, l) | |
896 | char *a; | |
897 | { | |
898 | int i; | |
899 | ||
900 | SERIAL_WRITE (desc, a, l); | |
901 | ||
902 | if (!quiet) | |
903 | for (i = 0; i < l; i++) | |
904 | { | |
905 | printf ("%c", a[i]); | |
906 | } | |
907 | } | |
908 | ||
909 | bug_write_cr (s) | |
910 | char *s; | |
911 | { | |
912 | bug_write (s, strlen (s)); | |
913 | bug_write ("\r", 1); | |
914 | } | |
915 | ||
916 | /* Store register REGNO, or all if REGNO == -1. */ | |
917 | ||
918 | static void | |
919 | bug_fetch_register(regno) | |
920 | int regno; | |
921 | { | |
922 | REGISTER_TYPE regval; | |
923 | check_open(); | |
924 | ||
925 | if (regno == -1) | |
926 | { | |
927 | int i; | |
928 | ||
929 | for (i = 0; i < NUM_REGS; ++i) | |
930 | bug_fetch_register(i); | |
931 | } | |
932 | else | |
933 | { | |
934 | bug_write("rs ", 3); | |
935 | bug_write_cr(get_reg_name(regno)); | |
936 | expect("="); | |
937 | regval = get_hex_word(); | |
938 | expect_prompt(); | |
939 | ||
940 | /* the following registers contain flag bits in the lower to bit slots. | |
941 | Mask them off */ | |
942 | if (regno == PC_REGNUM /* aka sxip */ | |
943 | || regno == NPC_REGNUM /* aka snip */ | |
944 | || regno == SFIP_REGNUM) /* aka sfip */ | |
945 | regval &= ~0x3; | |
946 | ||
947 | supply_register(regno, (char *) ®val); | |
948 | } | |
949 | ||
950 | return; | |
951 | } | |
952 | ||
953 | /* Store register REGNO, or all if REGNO == -1. */ | |
954 | ||
955 | static void | |
956 | bug_store_register (regno) | |
957 | int regno; | |
958 | { | |
959 | REGISTER_TYPE regval; | |
960 | char buffer[1024]; | |
961 | check_open(); | |
962 | ||
963 | if (regno == -1) | |
964 | { | |
965 | int i; | |
966 | ||
967 | for (i = 0; i < NUM_REGS; ++i) | |
968 | bug_store_register(i); | |
969 | } | |
970 | else | |
971 | { | |
972 | char *regname; | |
973 | ||
974 | /* get_reg_name thinks that the pc is in sxip. This is only partially | |
975 | true. When *assigning* it, we must assign to ip on m88k-bug. */ | |
976 | ||
977 | regname = ((regno == PC_REGNUM) | |
978 | ? "ip" | |
979 | : get_reg_name(regno)); | |
980 | ||
981 | sprintf(buffer, "rs %s %08x", | |
982 | regname, | |
983 | read_register(regno)); | |
984 | ||
985 | bug_write_cr(buffer); | |
986 | expect_prompt(); | |
987 | } | |
988 | ||
989 | return; | |
990 | } | |
991 | ||
992 | /* Get ready to modify the registers array. On machines which store | |
993 | individual registers, this doesn't need to do anything. On machines | |
994 | which store all the registers in one fell swoop, this makes sure | |
995 | that registers contains all the registers from the program being | |
996 | debugged. */ | |
997 | ||
998 | void | |
999 | bug_prepare_to_store () | |
1000 | { | |
1001 | /* Do nothing, since we can store individual regs */ | |
1002 | } | |
1003 | ||
1004 | static CORE_ADDR | |
1005 | translate_addr (addr) | |
1006 | CORE_ADDR addr; | |
1007 | { | |
1008 | ||
1009 | return (addr); | |
1010 | ||
1011 | } | |
1012 | ||
1013 | /* Read a word from remote address ADDR and return it. | |
1014 | * This goes through the data cache. | |
1015 | */ | |
1016 | int | |
1017 | bug_fetch_word (addr) | |
1018 | CORE_ADDR addr; | |
1019 | { | |
1020 | return dcache_fetch (addr); | |
1021 | } | |
1022 | ||
1023 | /* Write a word WORD into remote address ADDR. | |
1024 | This goes through the data cache. */ | |
1025 | ||
1026 | void | |
1027 | bug_store_word (addr, word) | |
1028 | CORE_ADDR addr; | |
1029 | int word; | |
1030 | { | |
1031 | dcache_poke (addr, word); | |
1032 | } | |
1033 | ||
1034 | int | |
1035 | bug_xfer_inferior_memory (memaddr, myaddr, len, write, target) | |
1036 | CORE_ADDR memaddr; | |
1037 | char *myaddr; | |
1038 | int len; | |
1039 | int write; | |
1040 | struct target_ops *target; /* ignored */ | |
1041 | { | |
1042 | register int i; | |
1043 | ||
1044 | /* Round starting address down to longword boundary. */ | |
1045 | register CORE_ADDR addr; | |
1046 | ||
1047 | /* Round ending address up; get number of longwords that makes. */ | |
1048 | register int count; | |
1049 | ||
1050 | /* Allocate buffer of that many longwords. */ | |
1051 | register int *buffer; | |
1052 | ||
1053 | addr = memaddr & -sizeof (int); | |
1054 | count = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); | |
1055 | ||
1056 | buffer = (int *) alloca (count * sizeof (int)); | |
1057 | ||
1058 | if (write) | |
1059 | { | |
1060 | /* Fill start and end extra bytes of buffer with existing memory data. */ | |
1061 | ||
1062 | if (addr != memaddr || len < (int) sizeof (int)) | |
1063 | { | |
1064 | /* Need part of initial word -- fetch it. */ | |
1065 | buffer[0] = bug_fetch_word (addr); | |
1066 | } | |
1067 | ||
1068 | if (count > 1) /* FIXME, avoid if even boundary */ | |
1069 | { | |
1070 | buffer[count - 1] | |
1071 | = bug_fetch_word (addr + (count - 1) * sizeof (int)); | |
1072 | } | |
1073 | ||
1074 | /* Copy data to be written over corresponding part of buffer */ | |
1075 | ||
1076 | bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); | |
1077 | ||
1078 | /* Write the entire buffer. */ | |
1079 | ||
1080 | for (i = 0; i < count; i++, addr += sizeof (int)) | |
1081 | { | |
1082 | errno = 0; | |
1083 | bug_store_word (addr, buffer[i]); | |
1084 | if (errno) | |
1085 | { | |
1086 | ||
1087 | return 0; | |
1088 | } | |
1089 | ||
1090 | } | |
1091 | } | |
1092 | else | |
1093 | { | |
1094 | /* Read all the longwords */ | |
1095 | for (i = 0; i < count; i++, addr += sizeof (int)) | |
1096 | { | |
1097 | errno = 0; | |
1098 | buffer[i] = bug_fetch_word (addr); | |
1099 | if (errno) | |
1100 | { | |
1101 | return 0; | |
1102 | } | |
1103 | QUIT; | |
1104 | } | |
1105 | ||
1106 | /* Copy appropriate bytes out of the buffer. */ | |
1107 | bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); | |
1108 | } | |
1109 | ||
1110 | return len; | |
1111 | } | |
1112 | ||
1113 | /* fixme: make this user settable */ | |
1114 | #define CHUNK_SIZE (30) | |
1115 | ||
1116 | int | |
1117 | bug_write_inferior_memory (memaddr, myaddr, len) | |
1118 | CORE_ADDR memaddr; | |
1119 | unsigned char *myaddr; | |
1120 | int len; | |
1121 | { | |
1122 | int done; | |
1123 | int todo; | |
1124 | int checksum; | |
1125 | char buffer[(CHUNK_SIZE + 8) << 1]; | |
1126 | ||
1127 | done = 0; | |
1128 | ||
1129 | #define LOAD_COMMAND "lo 0" | |
1130 | bug_write_cr (LOAD_COMMAND); | |
1131 | ||
1132 | while (done < len) | |
1133 | { | |
1134 | int thisgo; | |
1135 | int idx; | |
1136 | char *buf = buffer; | |
1137 | CORE_ADDR address; | |
1138 | ||
1139 | checksum = 0; | |
1140 | thisgo = len - done; | |
1141 | if (thisgo > CHUNK_SIZE) | |
1142 | thisgo = CHUNK_SIZE; | |
1143 | ||
1144 | address = memaddr + done; | |
1145 | sprintf (buf, "S3%02X%08X", thisgo + 4 + 1, address); | |
1146 | buf += 12; | |
1147 | ||
1148 | checksum += (thisgo + 4 + 1 | |
1149 | + (address & 0xff) | |
1150 | + ((address >> 8) & 0xff) | |
1151 | + ((address >> 16) & 0xff) | |
1152 | + ((address >> 24) & 0xff)); | |
1153 | ||
1154 | for (idx = 0; idx < thisgo; idx++) | |
1155 | { | |
1156 | sprintf (buf, "%02X", myaddr[idx + done]); | |
1157 | checksum += myaddr[idx + done]; | |
1158 | buf += 2; | |
1159 | } | |
1160 | sprintf(buf, "%02X", ~checksum & 0xff); | |
1161 | bug_write_cr (buffer); | |
1162 | done += thisgo; | |
1163 | } | |
1164 | ||
1165 | bug_write_cr("S7060000000000F9"); | |
1166 | expect_prompt(); | |
1167 | } | |
1168 | ||
1169 | void | |
1170 | bug_files_info () | |
1171 | { | |
1172 | char *file = "nothing"; | |
1173 | ||
1174 | if (exec_bfd) | |
1175 | file = bfd_get_filename (exec_bfd); | |
1176 | ||
1177 | if (exec_bfd) | |
1178 | #ifdef __GO32__ | |
1179 | printf_filtered ("\tAttached to DOS asynctsr and running program %s\n", file); | |
1180 | #else | |
1181 | printf_filtered ("\tAttached to %s at %d baud and running program %s\n", dev_name, baudrate, file); | |
1182 | #endif | |
1183 | printf_filtered ("\ton an m88k processor.\n"); | |
1184 | } | |
1185 | ||
1186 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
1187 | to inferior's memory at MEMADDR. Returns errno value. | |
1188 | * sb/sh instructions don't work on unaligned addresses, when TU=1. | |
1189 | */ | |
1190 | ||
1191 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result | |
1192 | at debugger address MYADDR. Returns errno value. */ | |
1193 | int | |
1194 | bug_read_inferior_memory (memaddr, myaddr, len) | |
1195 | CORE_ADDR memaddr; | |
1196 | char *myaddr; | |
1197 | int len; | |
1198 | { | |
1199 | char request[100]; | |
1200 | char *buffer; | |
1201 | char *p; | |
1202 | char type; | |
1203 | char size; | |
1204 | unsigned char c; | |
1205 | unsigned int inaddr; | |
1206 | unsigned int checksum; | |
1207 | ||
1208 | sprintf(request, "du 0 %x:&%d", memaddr, len); | |
1209 | bug_write_cr(request); | |
1210 | ||
1211 | p = buffer = alloca(len); | |
1212 | ||
1213 | /* scan up through the header */ | |
1214 | expect("S0030000FC"); | |
1215 | ||
1216 | while (p < buffer + len) | |
1217 | { | |
1218 | /* scan off any white space. */ | |
1219 | while (readchar() != 'S') ;; | |
1220 | ||
1221 | /* what kind of s-rec? */ | |
1222 | type = readchar(); | |
1223 | ||
1224 | /* scan record size */ | |
1225 | get_hex_byte(&size); | |
1226 | checksum = size; | |
1227 | --size; | |
1228 | inaddr = 0; | |
1229 | ||
1230 | switch (type) | |
1231 | { | |
1232 | case '7': | |
1233 | case '8': | |
1234 | case '9': | |
1235 | goto done; | |
1236 | ||
1237 | case '3': | |
1238 | get_hex_byte(&c); | |
1239 | inaddr = (inaddr << 8) + c; | |
1240 | checksum += c; | |
1241 | --size; | |
1242 | /* intentional fall through */ | |
1243 | case '2': | |
1244 | get_hex_byte(&c); | |
1245 | inaddr = (inaddr << 8) + c; | |
1246 | checksum += c; | |
1247 | --size; | |
1248 | /* intentional fall through */ | |
1249 | case '1': | |
1250 | get_hex_byte(&c); | |
1251 | inaddr = (inaddr << 8) + c; | |
1252 | checksum += c; | |
1253 | --size; | |
1254 | get_hex_byte(&c); | |
1255 | inaddr = (inaddr << 8) + c; | |
1256 | checksum += c; | |
1257 | --size; | |
1258 | break; | |
1259 | ||
1260 | default: | |
1261 | /* bonk */ | |
1262 | error("reading s-records."); | |
1263 | } | |
1264 | ||
1265 | if (inaddr < memaddr | |
1266 | || (memaddr + len) < (inaddr + size)) | |
1267 | error("srec out of memory range."); | |
1268 | ||
1269 | if (p != buffer + inaddr - memaddr) | |
1270 | error("srec out of sequence."); | |
1271 | ||
1272 | for (; size; --size, ++p) | |
1273 | { | |
1274 | get_hex_byte(p); | |
1275 | checksum += *p; | |
1276 | } | |
1277 | ||
1278 | get_hex_byte(&c); | |
1279 | if (c != (~checksum & 0xff)) | |
1280 | error("bad s-rec checksum"); | |
1281 | } | |
1282 | ||
1283 | done: | |
1284 | expect_prompt(); | |
1285 | if (p != buffer + len) | |
1286 | return(1); | |
1287 | ||
1288 | memcpy(myaddr, buffer, len); | |
1289 | return(0); | |
1290 | } | |
1291 | ||
1292 | /* This routine is run as a hook, just before the main command loop is | |
1293 | entered. If gdb is configured for the H8, but has not had its | |
1294 | target specified yet, this will loop prompting the user to do so. | |
1295 | */ | |
1296 | ||
1297 | bug_before_main_loop () | |
1298 | { | |
1299 | char ttyname[100]; | |
1300 | char *p, *p2; | |
1301 | extern FILE *instream; | |
1302 | ||
1303 | push_target (&bug_ops); | |
1304 | } | |
1305 | ||
1306 | #define MAX_BREAKS 16 | |
1307 | static int num_brkpts = 0; | |
1308 | static int | |
1309 | bug_insert_breakpoint (addr, save) | |
1310 | CORE_ADDR addr; | |
1311 | char *save; /* Throw away, let bug save instructions */ | |
1312 | { | |
1313 | check_open (); | |
1314 | ||
1315 | if (num_brkpts < MAX_BREAKS) | |
1316 | { | |
1317 | char buffer[100]; | |
1318 | ||
1319 | num_brkpts++; | |
1320 | sprintf (buffer, "br %x", addr); | |
1321 | bug_write_cr (buffer); | |
1322 | expect_prompt (); | |
1323 | return(0); | |
1324 | } | |
1325 | else | |
1326 | { | |
1327 | fprintf_filtered (stderr, | |
1328 | "Too many break points, break point not installed\n"); | |
1329 | return(1); | |
1330 | } | |
1331 | ||
1332 | } | |
1333 | static int | |
1334 | bug_remove_breakpoint (addr, save) | |
1335 | CORE_ADDR addr; | |
1336 | char *save; /* Throw away, let bug save instructions */ | |
1337 | { | |
1338 | if (num_brkpts > 0) | |
1339 | { | |
1340 | char buffer[100]; | |
1341 | ||
1342 | num_brkpts--; | |
1343 | sprintf (buffer, "nobr %x", addr); | |
1344 | bug_write_cr (buffer); | |
1345 | expect_prompt (); | |
1346 | ||
1347 | } | |
1348 | return (0); | |
1349 | } | |
1350 | ||
1351 | /* Clear the bugs notion of what the break points are */ | |
1352 | static int | |
1353 | bug_clear_breakpoints () | |
1354 | { | |
1355 | ||
1356 | if (is_open) | |
1357 | { | |
1358 | bug_write_cr ("nobr"); | |
1359 | expect_prompt (); | |
1360 | } | |
1361 | num_brkpts = 0; | |
1362 | } | |
1363 | static void | |
1364 | bug_mourn () | |
1365 | { | |
1366 | bug_clear_breakpoints (); | |
1367 | generic_mourn_inferior (); | |
1368 | } | |
1369 | ||
1370 | /* Put a command string, in args, out to the bug. The bug is assumed to | |
1371 | be in raw mode, all writing/reading done through desc. | |
1372 | Ouput from the bug is placed on the users terminal until the | |
1373 | prompt from the bug is seen. | |
1374 | FIXME: Can't handle commands that take input. */ | |
1375 | ||
1376 | void | |
1377 | bug_com (args, fromtty) | |
1378 | char *args; | |
1379 | int fromtty; | |
1380 | { | |
1381 | check_open (); | |
1382 | ||
1383 | if (!args) | |
1384 | return; | |
1385 | ||
1386 | /* Clear all input so only command relative output is displayed */ | |
1387 | ||
1388 | bug_write_cr (args); | |
1389 | bug_write ("\030", 1); | |
1390 | expect_prompt (); | |
1391 | } | |
1392 | ||
1393 | bug_quiet () | |
1394 | { | |
1395 | quiet = !quiet; | |
1396 | if (quiet) | |
1397 | printf_filtered ("Snoop disabled\n"); | |
1398 | else | |
1399 | printf_filtered ("Snoop enabled\n"); | |
1400 | ||
1401 | } | |
1402 | ||
1403 | bug_device (s) | |
1404 | char *s; | |
1405 | { | |
1406 | if (s) | |
1407 | { | |
1408 | dev_name = get_word (&s); | |
1409 | } | |
1410 | } | |
1411 | ||
1412 | #if 0 | |
1413 | static | |
1414 | bug_speed (s) | |
1415 | char *s; | |
1416 | { | |
1417 | check_open (); | |
1418 | ||
1419 | if (s) | |
1420 | { | |
1421 | char buffer[100]; | |
1422 | int newrate = atoi (s); | |
1423 | int which = 0; | |
1424 | ||
1425 | if (SERIAL_SETBAUDRATE (desc, newrate)) | |
1426 | error ("Can't use %d baud\n", newrate); | |
1427 | ||
1428 | printf_filtered ("Checking target is in sync\n"); | |
1429 | ||
1430 | printf_filtered ("Sending commands to set target to %d\n", | |
1431 | baudrate); | |
1432 | ||
1433 | sprintf (buffer, "tm %d. N 8 1", baudrate); | |
1434 | bug_write_cr (buffer); | |
1435 | } | |
1436 | } | |
1437 | #endif /* 0 */ | |
1438 | ||
1439 | static struct target_ops bug_ops = | |
1440 | { | |
1441 | "bug", "Remote BUG monitor", | |
1442 | "Use the mvme187 board running the BUG monitor connected\n\ | |
1443 | by a serial line.", | |
1444 | ||
1445 | bug_open, bug_close, | |
1446 | 0, bug_detach, bug_resume, bug_wait, /* attach */ | |
1447 | bug_fetch_register, bug_store_register, | |
1448 | bug_prepare_to_store, | |
1449 | bug_xfer_inferior_memory, | |
1450 | bug_files_info, | |
1451 | bug_insert_breakpoint, bug_remove_breakpoint, /* Breakpoints */ | |
1452 | 0, 0, 0, 0, 0, /* Terminal handling */ | |
1453 | bug_kill, /* FIXME, kill */ | |
1454 | bug_load, | |
1455 | 0, /* lookup_symbol */ | |
1456 | bug_create_inferior, /* create_inferior */ | |
1457 | bug_mourn, /* mourn_inferior FIXME */ | |
1458 | 0, /* can_run */ | |
1459 | 0, /* notice_signals */ | |
1460 | process_stratum, 0, /* next */ | |
1461 | 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */ | |
1462 | 0, 0, /* Section pointers */ | |
1463 | OPS_MAGIC, /* Always the last thing */ | |
1464 | }; | |
1465 | ||
1466 | void | |
1467 | _initialize_remote_bug () | |
1468 | { | |
1469 | add_target (&bug_ops); | |
1470 | ||
1471 | add_com ("bug <command>", class_obscure, bug_com, | |
1472 | "Send a command to the BUG monitor."); | |
1473 | add_com ("snoop", class_obscure, bug_quiet, | |
1474 | "Show what commands are going to the monitor"); | |
1475 | ||
1476 | add_com ("device", class_obscure, bug_device, | |
1477 | "Set the terminal line for BUG communications"); | |
1478 | ||
1479 | #if 0 | |
1480 | add_com ("speed", class_obscure, bug_speed, | |
1481 | "Set the terminal line speed for BUG communications"); | |
1482 | #endif /* 0 */ | |
1483 | ||
1484 | dev_name = NULL; | |
1485 | } |