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" | |
be58e87e | 27 | |
5905161c RP |
28 | #include <string.h> |
29 | #include <ctype.h> | |
30 | #include <fcntl.h> | |
31 | #include <signal.h> | |
32 | #include <setjmp.h> | |
33 | #include <errno.h> | |
be58e87e | 34 | |
5905161c RP |
35 | #include "terminal.h" |
36 | #include "target.h" | |
37 | #include "gdbcore.h" | |
38 | #include "serial.h" | |
be58e87e RP |
39 | #include "gdbcmd.h" |
40 | ||
755892d6 RP |
41 | #include "dcache.h" |
42 | ||
be58e87e | 43 | extern int sleep(); |
5905161c RP |
44 | |
45 | /* External data declarations */ | |
46 | extern int stop_soon_quietly; /* for wait_for_inferior */ | |
47 | ||
48 | /* Forward data declarations */ | |
ae87844d | 49 | extern struct target_ops bug_ops; /* Forward declaration */ |
5905161c RP |
50 | |
51 | /* Forward function declarations */ | |
be58e87e | 52 | |
755892d6 RP |
53 | static int bug_clear_breakpoints PARAMS((void)); |
54 | static void bug_close PARAMS((int quitting)); | |
55 | static void bug_write_cr PARAMS((char *string)); | |
be58e87e | 56 | |
755892d6 RP |
57 | static int bug_read_inferior_memory PARAMS((CORE_ADDR memaddr, |
58 | unsigned char *myaddr, | |
59 | int len)); | |
be58e87e | 60 | |
755892d6 RP |
61 | static int bug_write_inferior_memory PARAMS((CORE_ADDR memaddr, |
62 | unsigned char *myaddr, | |
63 | int len)); | |
be58e87e | 64 | |
be58e87e RP |
65 | /* This is the serial descriptor to our target. */ |
66 | ||
67 | static serial_t desc = NULL; | |
68 | ||
755892d6 RP |
69 | /* This is our data cache. */ |
70 | ||
71 | static DCACHE *bug_dcache; | |
72 | ||
be58e87e RP |
73 | /* This variable is somewhat arbitrary. It's here so that it can be |
74 | set from within a running gdb. */ | |
75 | ||
76 | static int srec_max_retries = 3; | |
77 | ||
78 | /* Each S-record download to the target consists of an S0 header | |
79 | record, some number of S3 data records, and one S7 termination | |
80 | record. I call this download a "frame". Srec_frame says how many | |
81 | bytes will be represented in each frame. */ | |
82 | ||
83 | static int srec_frame = 160; | |
84 | ||
85 | /* This variable determines how many bytes will be represented in each | |
86 | S3 s-record. */ | |
87 | ||
88 | static int srec_bytes = 40; | |
89 | ||
90 | /* At one point it appeared to me as though the bug monitor could not | |
91 | really be expected to receive two sequential characters at 9600 | |
92 | baud reliably. Echo-pacing is an attempt to force data across the | |
93 | line even in this condition. Specifically, in echo-pace mode, each | |
94 | character is sent one at a time and we look for the echo before | |
95 | sending the next. This is excruciatingly slow. */ | |
5905161c | 96 | |
be58e87e RP |
97 | static int srec_echo_pace = 0; |
98 | ||
99 | /* How long to wait after an srec for a possible error message. | |
100 | Similar to the above, I tried sleeping after sending each S3 record | |
101 | in hopes that I might actually see error messages from the bug | |
102 | monitor. This might actually work if we were to use sleep | |
103 | intervals smaller than 1 second. */ | |
104 | ||
105 | static int srec_sleep = 0; | |
106 | ||
107 | /* Every srec_noise records, flub the checksum. This is a debugging | |
108 | feature. Set the variable to something other than 1 in order to | |
109 | inject *deliberate* checksum errors. One might do this if one | |
110 | wanted to test error handling and recovery. */ | |
111 | ||
112 | static int srec_noise = 0; | |
5905161c | 113 | |
5905161c RP |
114 | /*********************************************************************** |
115 | * I/O stuff stolen from remote-eb.c | |
116 | ***********************************************************************/ | |
117 | ||
be58e87e RP |
118 | /* with a timeout of 2, we time out waiting for the prompt after an |
119 | s-record dump. */ | |
120 | static int timeout = 4; | |
5905161c RP |
121 | |
122 | static const char *dev_name; | |
123 | ||
124 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that | |
125 | bug_open knows that we don't have a file open when the program | |
126 | starts. */ | |
127 | ||
be58e87e RP |
128 | static int is_open = 0; |
129 | static int | |
5905161c RP |
130 | check_open () |
131 | { | |
132 | if (!is_open) | |
133 | { | |
134 | error ("remote device not open"); | |
135 | } | |
be58e87e RP |
136 | |
137 | return(1); | |
5905161c RP |
138 | } |
139 | ||
140 | #define ON 1 | |
141 | #define OFF 0 | |
142 | ||
143 | /* Read a character from the remote system, doing all the fancy | |
144 | timeout stuff. */ | |
145 | static int | |
146 | readchar () | |
147 | { | |
148 | int buf; | |
149 | ||
150 | buf = SERIAL_READCHAR (desc, timeout); | |
151 | ||
152 | if (buf == SERIAL_TIMEOUT) | |
153 | error ("Timeout reading from remote system."); | |
154 | ||
b11d53ba | 155 | if (remote_debug) |
5905161c RP |
156 | printf ("%c", buf); |
157 | ||
158 | return buf & 0x7f; | |
159 | } | |
160 | ||
161 | static int | |
162 | readchar_nofail () | |
163 | { | |
164 | int buf; | |
165 | ||
166 | buf = SERIAL_READCHAR (desc, timeout); | |
167 | if (buf == SERIAL_TIMEOUT) | |
168 | buf = 0; | |
b11d53ba | 169 | if (remote_debug) |
be58e87e RP |
170 | if (buf) |
171 | printf ("%c", buf); | |
172 | else | |
173 | printf ("<timeout>"); | |
5905161c RP |
174 | |
175 | return buf & 0x7f; | |
176 | ||
177 | } | |
178 | ||
be58e87e RP |
179 | static int |
180 | pollchar() | |
181 | { | |
182 | int buf; | |
183 | ||
184 | buf = SERIAL_READCHAR (desc, 0); | |
185 | if (buf == SERIAL_TIMEOUT) | |
186 | buf = 0; | |
b11d53ba | 187 | if (remote_debug) |
be58e87e RP |
188 | if (buf) |
189 | printf ("%c", buf); | |
190 | else | |
191 | printf ("<empty poll>"); | |
192 | ||
193 | return buf & 0x7f; | |
194 | } | |
195 | ||
5905161c RP |
196 | /* Keep discarding input from the remote system, until STRING is found. |
197 | Let the user break out immediately. */ | |
198 | static void | |
199 | expect (string) | |
200 | char *string; | |
201 | { | |
202 | char *p = string; | |
203 | ||
204 | immediate_quit = 1; | |
be58e87e | 205 | for (;;) |
5905161c RP |
206 | { |
207 | if (readchar () == *p) | |
208 | { | |
209 | p++; | |
210 | if (*p == '\0') | |
211 | { | |
212 | immediate_quit = 0; | |
213 | return; | |
214 | } | |
215 | } | |
216 | else | |
217 | p = string; | |
218 | } | |
219 | } | |
220 | ||
221 | /* Keep discarding input until we see the bug prompt. | |
222 | ||
223 | The convention for dealing with the prompt is that you | |
224 | o give your command | |
225 | o *then* wait for the prompt. | |
226 | ||
227 | Thus the last thing that a procedure does with the serial line | |
228 | will be an expect_prompt(). Exception: bug_resume does not | |
229 | wait for the prompt, because the terminal is being handed over | |
230 | to the inferior. However, the next thing which happens after that | |
231 | is a bug_wait which does wait for the prompt. | |
232 | Note that this includes abnormal exit, e.g. error(). This is | |
233 | necessary to prevent getting into states from which we can't | |
234 | recover. */ | |
235 | static void | |
236 | expect_prompt () | |
237 | { | |
238 | expect ("Bug>"); | |
239 | } | |
240 | ||
241 | /* Get a hex digit from the remote system & return its value. | |
242 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ | |
243 | static int | |
244 | get_hex_digit (ignore_space) | |
245 | int ignore_space; | |
246 | { | |
247 | int ch; | |
248 | ||
be58e87e | 249 | for (;;) |
5905161c RP |
250 | { |
251 | ch = readchar (); | |
252 | if (ch >= '0' && ch <= '9') | |
253 | return ch - '0'; | |
254 | else if (ch >= 'A' && ch <= 'F') | |
255 | return ch - 'A' + 10; | |
256 | else if (ch >= 'a' && ch <= 'f') | |
257 | return ch - 'a' + 10; | |
be58e87e | 258 | else if (ch != ' ' || !ignore_space) |
5905161c RP |
259 | { |
260 | expect_prompt (); | |
261 | error ("Invalid hex digit from remote system."); | |
262 | } | |
263 | } | |
264 | } | |
265 | ||
266 | /* Get a byte from bug_desc and put it in *BYT. Accept any number | |
267 | leading spaces. */ | |
268 | static void | |
269 | get_hex_byte (byt) | |
270 | char *byt; | |
271 | { | |
272 | int val; | |
273 | ||
274 | val = get_hex_digit (1) << 4; | |
275 | val |= get_hex_digit (0); | |
276 | *byt = val; | |
277 | } | |
278 | ||
279 | /* Read a 32-bit hex word from the bug, preceded by a space */ | |
280 | static long | |
281 | get_hex_word () | |
282 | { | |
283 | long val; | |
284 | int j; | |
285 | ||
286 | val = 0; | |
287 | for (j = 0; j < 8; j++) | |
288 | val = (val << 4) + get_hex_digit (j == 0); | |
289 | return val; | |
290 | } | |
291 | ||
292 | /* Called when SIGALRM signal sent due to alarm() timeout. */ | |
293 | ||
294 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
295 | NEED_ARTIFICIAL_TRAP calls to bug_wait should just return | |
296 | SIGTRAP without actually waiting for anything. */ | |
297 | ||
298 | static int need_artificial_trap = 0; | |
299 | ||
300 | void | |
301 | bug_kill (arg, from_tty) | |
302 | char *arg; | |
303 | int from_tty; | |
304 | { | |
305 | ||
306 | } | |
307 | ||
308 | /* | |
309 | * Download a file specified in 'args', to the bug. | |
310 | */ | |
be58e87e | 311 | |
5905161c RP |
312 | static void |
313 | bug_load (args, fromtty) | |
314 | char *args; | |
315 | int fromtty; | |
316 | { | |
317 | bfd *abfd; | |
318 | asection *s; | |
5905161c RP |
319 | char buffer[1024]; |
320 | ||
321 | check_open (); | |
322 | ||
755892d6 | 323 | dcache_flush (bug_dcache); |
5905161c RP |
324 | inferior_pid = 0; |
325 | abfd = bfd_openr (args, 0); | |
326 | if (!abfd) | |
327 | { | |
328 | printf_filtered ("Unable to open file %s\n", args); | |
329 | return; | |
330 | } | |
331 | ||
332 | if (bfd_check_format (abfd, bfd_object) == 0) | |
333 | { | |
334 | printf_filtered ("File is not an object file\n"); | |
335 | return; | |
336 | } | |
337 | ||
338 | s = abfd->sections; | |
339 | while (s != (asection *) NULL) | |
340 | { | |
341 | if (s->flags & SEC_LOAD) | |
342 | { | |
343 | int i; | |
344 | ||
be58e87e | 345 | char *buffer = xmalloc (srec_frame); |
5905161c RP |
346 | |
347 | printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma, s->vma + s->_raw_size); | |
be58e87e RP |
348 | fflush (stdout); |
349 | for (i = 0; i < s->_raw_size; i += srec_frame) | |
5905161c | 350 | { |
be58e87e RP |
351 | if (srec_frame > s->_raw_size - i) |
352 | srec_frame = s->_raw_size - i; | |
5905161c | 353 | |
be58e87e RP |
354 | bfd_get_section_contents (abfd, s, buffer, i, srec_frame); |
355 | bug_write_inferior_memory (s->vma + i, buffer, srec_frame); | |
5905161c RP |
356 | printf_filtered ("*"); |
357 | fflush (stdout); | |
358 | } | |
359 | printf_filtered ("\n"); | |
360 | free (buffer); | |
361 | } | |
362 | s = s->next; | |
363 | } | |
be58e87e | 364 | sprintf (buffer, "rs ip %lx", (unsigned long) abfd->start_address); |
5905161c RP |
365 | bug_write_cr (buffer); |
366 | expect_prompt (); | |
367 | } | |
368 | ||
369 | /* This is called not only when we first attach, but also when the | |
370 | user types "run" after having attached. */ | |
371 | void | |
372 | bug_create_inferior (execfile, args, env) | |
373 | char *execfile; | |
374 | char *args; | |
375 | char **env; | |
376 | { | |
377 | int entry_pt; | |
5905161c RP |
378 | |
379 | if (args && *args) | |
380 | error ("Can't pass arguments to remote bug process."); | |
381 | ||
382 | if (execfile == 0 || exec_bfd == 0) | |
383 | error ("No exec file specified"); | |
384 | ||
385 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
386 | check_open (); | |
387 | ||
388 | bug_kill (NULL, NULL); | |
389 | bug_clear_breakpoints (); | |
390 | init_wait_for_inferior (); | |
391 | bug_write_cr (""); | |
392 | expect_prompt (); | |
393 | ||
394 | insert_breakpoints (); /* Needed to get correct instruction in cache */ | |
395 | proceed (entry_pt, -1, 0); | |
396 | } | |
397 | ||
5905161c RP |
398 | static char * |
399 | get_word (p) | |
400 | char **p; | |
401 | { | |
402 | char *s = *p; | |
403 | char *word; | |
404 | char *copy; | |
405 | size_t len; | |
406 | ||
407 | while (isspace (*s)) | |
408 | s++; | |
409 | ||
410 | word = s; | |
411 | ||
412 | len = 0; | |
413 | ||
414 | while (*s && !isspace (*s)) | |
415 | { | |
416 | s++; | |
417 | len++; | |
418 | ||
419 | } | |
420 | copy = xmalloc (len + 1); | |
421 | memcpy (copy, word, len); | |
422 | copy[len] = 0; | |
423 | *p = s; | |
424 | return copy; | |
425 | } | |
426 | ||
427 | static int baudrate = 9600; | |
428 | ||
5905161c RP |
429 | static void |
430 | bug_open (name, from_tty) | |
431 | char *name; | |
432 | int from_tty; | |
433 | { | |
5905161c RP |
434 | push_target (&bug_ops); |
435 | ||
436 | if (name == 0) | |
437 | { | |
438 | name = ""; | |
439 | } | |
440 | if (is_open) | |
441 | bug_close (0); | |
442 | dev_name = strdup (name); | |
443 | ||
444 | if (!(desc = SERIAL_OPEN (dev_name))) | |
445 | perror_with_name ((char *) dev_name); | |
446 | ||
447 | SERIAL_RAW (desc); | |
448 | is_open = 1; | |
449 | ||
755892d6 | 450 | bug_dcache = dcache_init (bug_read_inferior_memory, bug_write_inferior_memory); |
5905161c RP |
451 | |
452 | /* Hello? Are you there? */ | |
453 | SERIAL_WRITE (desc, "\r", 1); | |
454 | expect_prompt (); | |
455 | ||
456 | /* Clear any break points */ | |
457 | bug_clear_breakpoints (); | |
458 | ||
459 | printf_filtered ("Connected to remote 187bug system.\n"); | |
460 | } | |
461 | ||
462 | /* Close out all files and local state before this target loses control. */ | |
463 | ||
464 | static void | |
465 | bug_close (quitting) | |
466 | int quitting; | |
467 | { | |
468 | /* Clear any break points */ | |
469 | bug_clear_breakpoints (); | |
470 | ||
471 | if (is_open) | |
472 | SERIAL_CLOSE (desc); | |
473 | ||
474 | is_open = 0; | |
475 | } | |
476 | ||
477 | /* Terminate the open connection to the remote debugger. | |
478 | Use this when you want to detach and do something else | |
479 | with your gdb. */ | |
480 | void | |
481 | bug_detach (args, from_tty) | |
482 | char *args; | |
483 | int from_tty; | |
484 | { | |
485 | if (is_open) | |
486 | bug_clear_breakpoints (); | |
487 | ||
488 | pop_target (); /* calls bug_close to do the real work */ | |
489 | ||
490 | if (from_tty) | |
491 | printf_filtered ("Ending remote %s debugging\n", target_shortname); | |
492 | } | |
493 | ||
494 | /* Tell the remote machine to resume. */ | |
495 | ||
496 | void | |
be58e87e RP |
497 | bug_resume (pid, step, sig) |
498 | int pid, step, sig; | |
5905161c | 499 | { |
755892d6 | 500 | dcache_flush (bug_dcache); |
5905161c RP |
501 | |
502 | if (step) | |
503 | { | |
504 | bug_write_cr("t"); | |
505 | ||
506 | /* Force the next bug_wait to return a trap. Not doing anything | |
507 | about I/O from the target means that the user has to type | |
508 | "continue" to see any. FIXME, this should be fixed. */ | |
509 | need_artificial_trap = 1; | |
510 | } | |
511 | else | |
512 | bug_write_cr ("g"); | |
513 | ||
514 | return; | |
515 | } | |
516 | ||
16f6ab6b RP |
517 | /* Given a null terminated list of strings LIST, read the input until we find one of |
518 | them. Return the index of the string found or -1 on error. '?' means match | |
519 | any single character. Note that with the algorithm we use, the initial | |
520 | character of the string cannot recur in the string, or we will not find some | |
521 | cases of the string in the input. If PASSTHROUGH is non-zero, then | |
522 | pass non-matching data on. */ | |
523 | ||
be58e87e | 524 | static int |
16f6ab6b RP |
525 | multi_scan (list, passthrough) |
526 | char *list[]; | |
527 | int passthrough; | |
5905161c | 528 | { |
16f6ab6b RP |
529 | char *swallowed = NULL; /* holding area */ |
530 | char *swallowed_p = swallowed; /* Current position in swallowed. */ | |
531 | int ch; | |
532 | int ch_handled; | |
533 | int i; | |
534 | int string_count; | |
535 | int max_length; | |
536 | char **plist; | |
5905161c | 537 | |
16f6ab6b RP |
538 | /* Look through the strings. Count them. Find the largest one so we can |
539 | allocate a holding area. */ | |
5905161c | 540 | |
16f6ab6b RP |
541 | for (max_length = string_count = i = 0; |
542 | list[i] != NULL; | |
543 | ++i, ++string_count) | |
544 | { | |
545 | int length = strlen(list[i]); | |
5905161c | 546 | |
16f6ab6b RP |
547 | if (length > max_length) |
548 | max_length = length; | |
549 | } | |
5905161c | 550 | |
16f6ab6b RP |
551 | /* if we have no strings, then something is wrong. */ |
552 | if (string_count == 0) | |
553 | return(-1); | |
5905161c | 554 | |
16f6ab6b RP |
555 | /* otherwise, we will need a holding area big enough to hold almost two |
556 | copies of our largest string. */ | |
557 | swallowed_p = swallowed = alloca(max_length << 1); | |
558 | ||
559 | /* and a list of pointers to current scan points. */ | |
560 | plist = alloca(string_count * sizeof(*plist)); | |
561 | ||
562 | /* and initialize */ | |
563 | for (i = 0; i < string_count; ++i) | |
564 | plist[i] = list[i]; | |
565 | ||
566 | for (ch = readchar(); /* loop forever */ ; ch = readchar()) | |
5905161c | 567 | { |
be58e87e | 568 | QUIT; /* Let user quit and leave process running */ |
5905161c | 569 | ch_handled = 0; |
be58e87e | 570 | |
16f6ab6b | 571 | for (i = 0; i < string_count; ++i) |
5905161c | 572 | { |
16f6ab6b RP |
573 | if (ch == *plist[i] || *plist[i] == '?') |
574 | { | |
575 | ++plist[i]; | |
576 | if (*plist[i] == '\0') | |
577 | return(i); | |
578 | ||
579 | if (!ch_handled) | |
580 | *swallowed_p++ = ch; | |
5905161c | 581 | |
16f6ab6b RP |
582 | ch_handled = 1; |
583 | } | |
584 | else | |
585 | plist[i] = list[i]; | |
5905161c | 586 | } |
5905161c RP |
587 | |
588 | if (!ch_handled) | |
589 | { | |
590 | char *p; | |
591 | ||
592 | /* Print out any characters which have been swallowed. */ | |
16f6ab6b | 593 | if (passthrough) |
5905161c | 594 | { |
16f6ab6b RP |
595 | for (p = swallowed; p < swallowed_p; ++p) |
596 | putc (*p, stdout); | |
597 | ||
5905161c | 598 | putc (ch, stdout); |
5905161c | 599 | } |
5905161c | 600 | |
16f6ab6b | 601 | swallowed_p = swallowed; |
5905161c | 602 | } |
5905161c | 603 | } |
be58e87e | 604 | |
16f6ab6b | 605 | return(-1); |
be58e87e RP |
606 | } |
607 | ||
608 | /* Wait until the remote machine stops, then return, | |
609 | storing status in STATUS just as `wait' would. */ | |
610 | ||
16f6ab6b RP |
611 | static char *wait_strings[] = { |
612 | "At Breakpoint", | |
613 | "Exception: Data Access Fault (Local Bus Timeout)", | |
614 | "\r8???-Bug>", | |
615 | NULL, | |
616 | }; | |
617 | ||
be58e87e RP |
618 | int |
619 | bug_wait (status) | |
620 | WAITTYPE *status; | |
621 | { | |
622 | int old_timeout = timeout; | |
623 | int old_immediate_quit = immediate_quit; | |
624 | ||
625 | WSETEXIT ((*status), 0); | |
626 | ||
16f6ab6b RP |
627 | /* read off leftovers from resume so that the rest can be passed |
628 | back out as stdout. */ | |
629 | if (need_artificial_trap == 0) | |
5905161c | 630 | { |
16f6ab6b RP |
631 | expect("Effective address: "); |
632 | (void) get_hex_word(); | |
633 | expect ("\r\n"); | |
5905161c | 634 | } |
be58e87e | 635 | |
be58e87e RP |
636 | timeout = -1; /* Don't time out -- user program is running. */ |
637 | immediate_quit = 1; /* Helps ability to QUIT */ | |
638 | ||
16f6ab6b | 639 | switch (multi_scan(wait_strings, need_artificial_trap == 0)) |
5905161c | 640 | { |
16f6ab6b | 641 | case 0: /* breakpoint case */ |
be58e87e | 642 | WSETSTOP ((*status), SIGTRAP); |
16f6ab6b RP |
643 | /* user output from the target can be discarded here. (?) */ |
644 | expect_prompt(); | |
645 | break; | |
646 | ||
647 | case 1: /* bus error */ | |
648 | WSETSTOP ((*status), SIGBUS); | |
649 | /* user output from the target can be discarded here. (?) */ | |
650 | expect_prompt(); | |
651 | break; | |
652 | ||
653 | case 2: /* normal case */ | |
654 | if (need_artificial_trap != 0) | |
655 | { | |
656 | /* stepping */ | |
657 | WSETSTOP ((*status), SIGTRAP); | |
658 | need_artificial_trap--; | |
659 | break; | |
660 | } | |
661 | else | |
662 | { | |
663 | /* exit case */ | |
664 | WSETEXIT ((*status), 0); | |
665 | break; | |
666 | } | |
be58e87e | 667 | |
16f6ab6b RP |
668 | case -1: /* trouble */ |
669 | default: | |
670 | fprintf_filtered (stderr, | |
671 | "Trouble reading target during wait\n"); | |
672 | break; | |
673 | } | |
5905161c RP |
674 | |
675 | timeout = old_timeout; | |
676 | immediate_quit = old_immediate_quit; | |
677 | return 0; | |
678 | } | |
679 | ||
680 | /* Return the name of register number REGNO | |
681 | in the form input and output by bug. | |
682 | ||
683 | Returns a pointer to a static buffer containing the answer. */ | |
684 | static char * | |
685 | get_reg_name (regno) | |
686 | int regno; | |
687 | { | |
688 | static char *rn[] = { | |
689 | "r00", "r01", "r02", "r03", "r04", "r05", "r06", "r07", | |
690 | "r08", "r09", "r10", "r11", "r12", "r13", "r14", "r15", | |
691 | "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", | |
692 | "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", | |
693 | ||
694 | /* these get confusing because we omit a few and switch some ordering around. */ | |
695 | ||
696 | "cr01", /* 32 = psr */ | |
697 | "fcr62", /* 33 = fpsr*/ | |
698 | "fcr63", /* 34 = fpcr */ | |
be58e87e RP |
699 | "ip", /* this is something of a cheat. */ |
700 | /* 35 = sxip */ | |
5905161c RP |
701 | "cr05", /* 36 = snip */ |
702 | "cr06", /* 37 = sfip */ | |
703 | }; | |
704 | ||
705 | return rn[regno]; | |
706 | } | |
707 | ||
708 | static int | |
5905161c RP |
709 | bug_write (a, l) |
710 | char *a; | |
be58e87e | 711 | int l; |
5905161c RP |
712 | { |
713 | int i; | |
714 | ||
715 | SERIAL_WRITE (desc, a, l); | |
716 | ||
b11d53ba | 717 | if (remote_debug) |
5905161c RP |
718 | for (i = 0; i < l; i++) |
719 | { | |
720 | printf ("%c", a[i]); | |
721 | } | |
be58e87e RP |
722 | |
723 | return(0); | |
5905161c RP |
724 | } |
725 | ||
be58e87e | 726 | static void |
5905161c RP |
727 | bug_write_cr (s) |
728 | char *s; | |
729 | { | |
730 | bug_write (s, strlen (s)); | |
731 | bug_write ("\r", 1); | |
be58e87e RP |
732 | return; |
733 | } | |
734 | ||
16f6ab6b | 735 | #if 0 /* not currently used */ |
be58e87e RP |
736 | /* Read from remote while the input matches STRING. Return zero on |
737 | success, -1 on failure. */ | |
738 | ||
739 | static int | |
740 | bug_scan (s) | |
741 | char *s; | |
742 | { | |
743 | int c; | |
744 | ||
745 | while (*s) | |
746 | { | |
747 | c = readchar(); | |
748 | if (c != *s++) | |
749 | { | |
750 | fflush(stdout); | |
751 | printf("\nNext character is '%c' - %d and s is \"%s\".\n", c, c, --s); | |
752 | return(-1); | |
753 | } | |
754 | } | |
755 | ||
756 | return(0); | |
757 | } | |
16f6ab6b | 758 | #endif /* never */ |
be58e87e RP |
759 | |
760 | static int | |
761 | bug_srec_write_cr (s) | |
762 | char *s; | |
763 | { | |
764 | char *p = s; | |
765 | ||
766 | if (srec_echo_pace) | |
767 | for (p = s; *p; ++p) | |
768 | { | |
b11d53ba | 769 | if (remote_debug) |
be58e87e RP |
770 | printf ("%c", *p); |
771 | ||
772 | do | |
773 | SERIAL_WRITE(desc, p, 1); | |
774 | while (readchar_nofail() != *p); | |
775 | } | |
776 | else | |
777 | { | |
778 | bug_write_cr (s); | |
779 | /* return(bug_scan (s) || bug_scan ("\n")); */ | |
780 | } | |
781 | ||
782 | return(0); | |
5905161c RP |
783 | } |
784 | ||
785 | /* Store register REGNO, or all if REGNO == -1. */ | |
786 | ||
787 | static void | |
788 | bug_fetch_register(regno) | |
789 | int regno; | |
790 | { | |
791 | REGISTER_TYPE regval; | |
792 | check_open(); | |
793 | ||
794 | if (regno == -1) | |
795 | { | |
796 | int i; | |
797 | ||
798 | for (i = 0; i < NUM_REGS; ++i) | |
799 | bug_fetch_register(i); | |
800 | } | |
801 | else | |
802 | { | |
803 | bug_write("rs ", 3); | |
804 | bug_write_cr(get_reg_name(regno)); | |
805 | expect("="); | |
806 | regval = get_hex_word(); | |
807 | expect_prompt(); | |
808 | ||
809 | /* the following registers contain flag bits in the lower to bit slots. | |
810 | Mask them off */ | |
811 | if (regno == PC_REGNUM /* aka sxip */ | |
812 | || regno == NPC_REGNUM /* aka snip */ | |
813 | || regno == SFIP_REGNUM) /* aka sfip */ | |
814 | regval &= ~0x3; | |
815 | ||
816 | supply_register(regno, (char *) ®val); | |
817 | } | |
818 | ||
819 | return; | |
820 | } | |
821 | ||
822 | /* Store register REGNO, or all if REGNO == -1. */ | |
823 | ||
824 | static void | |
825 | bug_store_register (regno) | |
826 | int regno; | |
827 | { | |
5905161c RP |
828 | char buffer[1024]; |
829 | check_open(); | |
830 | ||
831 | if (regno == -1) | |
832 | { | |
833 | int i; | |
834 | ||
835 | for (i = 0; i < NUM_REGS; ++i) | |
836 | bug_store_register(i); | |
837 | } | |
838 | else | |
839 | { | |
840 | char *regname; | |
841 | ||
be58e87e | 842 | regname = (get_reg_name(regno)); |
5905161c RP |
843 | |
844 | sprintf(buffer, "rs %s %08x", | |
845 | regname, | |
846 | read_register(regno)); | |
847 | ||
848 | bug_write_cr(buffer); | |
849 | expect_prompt(); | |
850 | } | |
851 | ||
852 | return; | |
853 | } | |
854 | ||
855 | /* Get ready to modify the registers array. On machines which store | |
856 | individual registers, this doesn't need to do anything. On machines | |
857 | which store all the registers in one fell swoop, this makes sure | |
858 | that registers contains all the registers from the program being | |
859 | debugged. */ | |
860 | ||
861 | void | |
862 | bug_prepare_to_store () | |
863 | { | |
864 | /* Do nothing, since we can store individual regs */ | |
865 | } | |
866 | ||
5905161c RP |
867 | /* Read a word from remote address ADDR and return it. |
868 | * This goes through the data cache. | |
869 | */ | |
870 | int | |
871 | bug_fetch_word (addr) | |
872 | CORE_ADDR addr; | |
873 | { | |
755892d6 | 874 | return dcache_fetch (bug_dcache, addr); |
5905161c RP |
875 | } |
876 | ||
877 | /* Write a word WORD into remote address ADDR. | |
878 | This goes through the data cache. */ | |
879 | ||
880 | void | |
881 | bug_store_word (addr, word) | |
882 | CORE_ADDR addr; | |
883 | int word; | |
884 | { | |
755892d6 | 885 | dcache_poke (bug_dcache, addr, word); |
5905161c RP |
886 | } |
887 | ||
888 | int | |
889 | bug_xfer_inferior_memory (memaddr, myaddr, len, write, target) | |
890 | CORE_ADDR memaddr; | |
891 | char *myaddr; | |
892 | int len; | |
893 | int write; | |
894 | struct target_ops *target; /* ignored */ | |
895 | { | |
896 | register int i; | |
897 | ||
898 | /* Round starting address down to longword boundary. */ | |
899 | register CORE_ADDR addr; | |
900 | ||
901 | /* Round ending address up; get number of longwords that makes. */ | |
902 | register int count; | |
903 | ||
904 | /* Allocate buffer of that many longwords. */ | |
905 | register int *buffer; | |
906 | ||
907 | addr = memaddr & -sizeof (int); | |
908 | count = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); | |
909 | ||
910 | buffer = (int *) alloca (count * sizeof (int)); | |
911 | ||
912 | if (write) | |
913 | { | |
914 | /* Fill start and end extra bytes of buffer with existing memory data. */ | |
915 | ||
916 | if (addr != memaddr || len < (int) sizeof (int)) | |
917 | { | |
918 | /* Need part of initial word -- fetch it. */ | |
919 | buffer[0] = bug_fetch_word (addr); | |
920 | } | |
921 | ||
922 | if (count > 1) /* FIXME, avoid if even boundary */ | |
923 | { | |
924 | buffer[count - 1] | |
925 | = bug_fetch_word (addr + (count - 1) * sizeof (int)); | |
926 | } | |
927 | ||
928 | /* Copy data to be written over corresponding part of buffer */ | |
929 | ||
ade40d31 | 930 | memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); |
5905161c RP |
931 | |
932 | /* Write the entire buffer. */ | |
933 | ||
934 | for (i = 0; i < count; i++, addr += sizeof (int)) | |
935 | { | |
936 | errno = 0; | |
937 | bug_store_word (addr, buffer[i]); | |
938 | if (errno) | |
939 | { | |
940 | ||
941 | return 0; | |
942 | } | |
943 | ||
944 | } | |
945 | } | |
946 | else | |
947 | { | |
948 | /* Read all the longwords */ | |
949 | for (i = 0; i < count; i++, addr += sizeof (int)) | |
950 | { | |
951 | errno = 0; | |
952 | buffer[i] = bug_fetch_word (addr); | |
953 | if (errno) | |
954 | { | |
955 | return 0; | |
956 | } | |
957 | QUIT; | |
958 | } | |
959 | ||
960 | /* Copy appropriate bytes out of the buffer. */ | |
ade40d31 | 961 | memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); |
5905161c RP |
962 | } |
963 | ||
964 | return len; | |
965 | } | |
966 | ||
be58e87e RP |
967 | static void |
968 | start_load() | |
969 | { | |
970 | char *command; | |
971 | ||
972 | command = (srec_echo_pace ? "lo 0 ;x" : "lo 0"); | |
973 | ||
974 | bug_write_cr (command); | |
975 | expect (command); | |
976 | expect ("\r\n"); | |
977 | bug_srec_write_cr ("S0030000FC"); | |
978 | return; | |
979 | } | |
980 | ||
981 | /* This is an extremely vulnerable and fragile function. I've made | |
982 | considerable attempts to make this deterministic, but I've | |
983 | certainly forgotten something. The trouble is that S-records are | |
984 | only a partial file format, not a protocol. Worse, apparently the | |
985 | m88k bug monitor does not run in real time while receiving | |
986 | S-records. Hence, we must pay excruciating attention to when and | |
987 | where error messages are returned, and what has actually been sent. | |
5905161c | 988 | |
be58e87e RP |
989 | Each call represents a chunk of memory to be sent to the target. |
990 | We break that chunk into an S0 header record, some number of S3 | |
991 | data records each containing srec_bytes, and an S7 termination | |
992 | record. */ | |
993 | ||
16f6ab6b RP |
994 | static char *srecord_strings[] = { |
995 | "S-RECORD", | |
996 | "8???-Bug>", | |
997 | NULL, | |
998 | }; | |
999 | ||
be58e87e | 1000 | static int |
5905161c RP |
1001 | bug_write_inferior_memory (memaddr, myaddr, len) |
1002 | CORE_ADDR memaddr; | |
1003 | unsigned char *myaddr; | |
1004 | int len; | |
1005 | { | |
1006 | int done; | |
5905161c | 1007 | int checksum; |
be58e87e RP |
1008 | int x; |
1009 | int retries; | |
1010 | char buffer[(srec_bytes + 8) << 1]; | |
5905161c | 1011 | |
be58e87e | 1012 | retries = 0; |
5905161c | 1013 | |
be58e87e | 1014 | do |
5905161c | 1015 | { |
be58e87e RP |
1016 | done = 0; |
1017 | ||
1018 | if (retries > srec_max_retries) | |
1019 | return(-1); | |
1020 | ||
1021 | if (retries > 0) | |
5905161c | 1022 | { |
b11d53ba | 1023 | if (remote_debug) |
be58e87e RP |
1024 | printf("\n<retrying...>\n"); |
1025 | ||
1026 | /* This expect_prompt call is extremely important. Without | |
1027 | it, we will tend to resend our packet so fast that it | |
1028 | will arrive before the bug monitor is ready to receive | |
1029 | it. This would lead to a very ugly resend loop. */ | |
1030 | ||
1031 | expect_prompt(); | |
5905161c | 1032 | } |
5905161c | 1033 | |
be58e87e RP |
1034 | start_load(); |
1035 | ||
1036 | while (done < len) | |
1037 | { | |
1038 | int thisgo; | |
1039 | int idx; | |
1040 | char *buf = buffer; | |
1041 | CORE_ADDR address; | |
1042 | ||
1043 | checksum = 0; | |
1044 | thisgo = len - done; | |
1045 | if (thisgo > srec_bytes) | |
1046 | thisgo = srec_bytes; | |
1047 | ||
1048 | address = memaddr + done; | |
1049 | sprintf (buf, "S3%02X%08X", thisgo + 4 + 1, address); | |
1050 | buf += 12; | |
1051 | ||
1052 | checksum += (thisgo + 4 + 1 | |
1053 | + (address & 0xff) | |
1054 | + ((address >> 8) & 0xff) | |
1055 | + ((address >> 16) & 0xff) | |
1056 | + ((address >> 24) & 0xff)); | |
1057 | ||
1058 | for (idx = 0; idx < thisgo; idx++) | |
1059 | { | |
1060 | sprintf (buf, "%02X", myaddr[idx + done]); | |
1061 | checksum += myaddr[idx + done]; | |
1062 | buf += 2; | |
1063 | } | |
1064 | ||
1065 | if (srec_noise > 0) | |
1066 | { | |
1067 | /* FIXME-NOW: insert a deliberate error every now and then. | |
1068 | This is intended for testing/debugging the error handling | |
1069 | stuff. */ | |
1070 | static int counter = 0; | |
1071 | if (++counter > srec_noise) | |
1072 | { | |
1073 | counter = 0; | |
1074 | ++checksum; | |
1075 | } | |
1076 | } | |
1077 | ||
1078 | sprintf(buf, "%02X", ~checksum & 0xff); | |
1079 | bug_srec_write_cr (buffer); | |
1080 | ||
1081 | if (srec_sleep != 0) | |
1082 | sleep(srec_sleep); | |
1083 | ||
16f6ab6b | 1084 | /* This pollchar is probably redundant to the multi_scan |
be58e87e RP |
1085 | below. Trouble is, we can't be sure when or where an |
1086 | error message will appear. Apparently, when running at | |
1087 | full speed from a typical sun4, error messages tend to | |
1088 | appear to arrive only *after* the s7 record. */ | |
1089 | ||
1090 | if ((x = pollchar()) != 0) | |
1091 | { | |
b11d53ba | 1092 | if (remote_debug) |
be58e87e RP |
1093 | printf("\n<retrying...>\n"); |
1094 | ||
1095 | ++retries; | |
1096 | ||
1097 | /* flush any remaining input and verify that we are back | |
1098 | at the prompt level. */ | |
1099 | expect_prompt(); | |
1100 | /* start all over again. */ | |
1101 | start_load(); | |
1102 | done = 0; | |
1103 | continue; | |
1104 | } | |
1105 | ||
1106 | done += thisgo; | |
1107 | } | |
1108 | ||
1109 | bug_srec_write_cr("S7060000000000F9"); | |
1110 | ++retries; | |
1111 | ||
1112 | /* Having finished the load, we need to figure out whether we | |
1113 | had any errors. */ | |
16f6ab6b | 1114 | } while (multi_scan(srecord_strings, 0) == 0);; |
be58e87e RP |
1115 | |
1116 | return(0); | |
5905161c RP |
1117 | } |
1118 | ||
1119 | void | |
1120 | bug_files_info () | |
1121 | { | |
1122 | char *file = "nothing"; | |
1123 | ||
1124 | if (exec_bfd) | |
1125 | file = bfd_get_filename (exec_bfd); | |
1126 | ||
1127 | if (exec_bfd) | |
1128 | #ifdef __GO32__ | |
1129 | printf_filtered ("\tAttached to DOS asynctsr and running program %s\n", file); | |
1130 | #else | |
1131 | printf_filtered ("\tAttached to %s at %d baud and running program %s\n", dev_name, baudrate, file); | |
1132 | #endif | |
1133 | printf_filtered ("\ton an m88k processor.\n"); | |
1134 | } | |
1135 | ||
1136 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
1137 | to inferior's memory at MEMADDR. Returns errno value. | |
1138 | * sb/sh instructions don't work on unaligned addresses, when TU=1. | |
1139 | */ | |
1140 | ||
1141 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result | |
1142 | at debugger address MYADDR. Returns errno value. */ | |
be58e87e | 1143 | static int |
5905161c RP |
1144 | bug_read_inferior_memory (memaddr, myaddr, len) |
1145 | CORE_ADDR memaddr; | |
755892d6 | 1146 | unsigned char *myaddr; |
5905161c RP |
1147 | int len; |
1148 | { | |
1149 | char request[100]; | |
1150 | char *buffer; | |
1151 | char *p; | |
1152 | char type; | |
1153 | char size; | |
1154 | unsigned char c; | |
1155 | unsigned int inaddr; | |
1156 | unsigned int checksum; | |
1157 | ||
1158 | sprintf(request, "du 0 %x:&%d", memaddr, len); | |
1159 | bug_write_cr(request); | |
1160 | ||
1161 | p = buffer = alloca(len); | |
1162 | ||
1163 | /* scan up through the header */ | |
1164 | expect("S0030000FC"); | |
1165 | ||
1166 | while (p < buffer + len) | |
1167 | { | |
1168 | /* scan off any white space. */ | |
1169 | while (readchar() != 'S') ;; | |
1170 | ||
1171 | /* what kind of s-rec? */ | |
1172 | type = readchar(); | |
1173 | ||
1174 | /* scan record size */ | |
1175 | get_hex_byte(&size); | |
1176 | checksum = size; | |
1177 | --size; | |
1178 | inaddr = 0; | |
1179 | ||
1180 | switch (type) | |
1181 | { | |
1182 | case '7': | |
1183 | case '8': | |
1184 | case '9': | |
1185 | goto done; | |
1186 | ||
1187 | case '3': | |
1188 | get_hex_byte(&c); | |
1189 | inaddr = (inaddr << 8) + c; | |
1190 | checksum += c; | |
1191 | --size; | |
1192 | /* intentional fall through */ | |
1193 | case '2': | |
1194 | get_hex_byte(&c); | |
1195 | inaddr = (inaddr << 8) + c; | |
1196 | checksum += c; | |
1197 | --size; | |
1198 | /* intentional fall through */ | |
1199 | case '1': | |
1200 | get_hex_byte(&c); | |
1201 | inaddr = (inaddr << 8) + c; | |
1202 | checksum += c; | |
1203 | --size; | |
1204 | get_hex_byte(&c); | |
1205 | inaddr = (inaddr << 8) + c; | |
1206 | checksum += c; | |
1207 | --size; | |
1208 | break; | |
1209 | ||
1210 | default: | |
1211 | /* bonk */ | |
1212 | error("reading s-records."); | |
1213 | } | |
1214 | ||
1215 | if (inaddr < memaddr | |
1216 | || (memaddr + len) < (inaddr + size)) | |
1217 | error("srec out of memory range."); | |
1218 | ||
1219 | if (p != buffer + inaddr - memaddr) | |
1220 | error("srec out of sequence."); | |
1221 | ||
1222 | for (; size; --size, ++p) | |
1223 | { | |
1224 | get_hex_byte(p); | |
1225 | checksum += *p; | |
1226 | } | |
1227 | ||
1228 | get_hex_byte(&c); | |
1229 | if (c != (~checksum & 0xff)) | |
1230 | error("bad s-rec checksum"); | |
1231 | } | |
1232 | ||
1233 | done: | |
1234 | expect_prompt(); | |
1235 | if (p != buffer + len) | |
1236 | return(1); | |
1237 | ||
1238 | memcpy(myaddr, buffer, len); | |
1239 | return(0); | |
1240 | } | |
1241 | ||
5905161c RP |
1242 | #define MAX_BREAKS 16 |
1243 | static int num_brkpts = 0; | |
1244 | static int | |
1245 | bug_insert_breakpoint (addr, save) | |
1246 | CORE_ADDR addr; | |
1247 | char *save; /* Throw away, let bug save instructions */ | |
1248 | { | |
1249 | check_open (); | |
1250 | ||
1251 | if (num_brkpts < MAX_BREAKS) | |
1252 | { | |
1253 | char buffer[100]; | |
1254 | ||
1255 | num_brkpts++; | |
1256 | sprintf (buffer, "br %x", addr); | |
1257 | bug_write_cr (buffer); | |
1258 | expect_prompt (); | |
1259 | return(0); | |
1260 | } | |
1261 | else | |
1262 | { | |
1263 | fprintf_filtered (stderr, | |
1264 | "Too many break points, break point not installed\n"); | |
1265 | return(1); | |
1266 | } | |
1267 | ||
1268 | } | |
1269 | static int | |
1270 | bug_remove_breakpoint (addr, save) | |
1271 | CORE_ADDR addr; | |
1272 | char *save; /* Throw away, let bug save instructions */ | |
1273 | { | |
1274 | if (num_brkpts > 0) | |
1275 | { | |
1276 | char buffer[100]; | |
1277 | ||
1278 | num_brkpts--; | |
1279 | sprintf (buffer, "nobr %x", addr); | |
1280 | bug_write_cr (buffer); | |
1281 | expect_prompt (); | |
1282 | ||
1283 | } | |
1284 | return (0); | |
1285 | } | |
1286 | ||
1287 | /* Clear the bugs notion of what the break points are */ | |
1288 | static int | |
1289 | bug_clear_breakpoints () | |
1290 | { | |
1291 | ||
1292 | if (is_open) | |
1293 | { | |
1294 | bug_write_cr ("nobr"); | |
be58e87e | 1295 | expect("nobr"); |
5905161c RP |
1296 | expect_prompt (); |
1297 | } | |
1298 | num_brkpts = 0; | |
be58e87e | 1299 | return(0); |
5905161c | 1300 | } |
be58e87e | 1301 | |
5905161c RP |
1302 | static void |
1303 | bug_mourn () | |
1304 | { | |
1305 | bug_clear_breakpoints (); | |
1306 | generic_mourn_inferior (); | |
1307 | } | |
1308 | ||
1309 | /* Put a command string, in args, out to the bug. The bug is assumed to | |
1310 | be in raw mode, all writing/reading done through desc. | |
1311 | Ouput from the bug is placed on the users terminal until the | |
1312 | prompt from the bug is seen. | |
1313 | FIXME: Can't handle commands that take input. */ | |
1314 | ||
1315 | void | |
1316 | bug_com (args, fromtty) | |
1317 | char *args; | |
1318 | int fromtty; | |
1319 | { | |
1320 | check_open (); | |
1321 | ||
1322 | if (!args) | |
1323 | return; | |
1324 | ||
1325 | /* Clear all input so only command relative output is displayed */ | |
1326 | ||
1327 | bug_write_cr (args); | |
1328 | bug_write ("\030", 1); | |
1329 | expect_prompt (); | |
1330 | } | |
1331 | ||
be58e87e RP |
1332 | static void |
1333 | bug_device (args, fromtty) | |
1334 | char *args; | |
1335 | int fromtty; | |
5905161c | 1336 | { |
be58e87e RP |
1337 | if (args) |
1338 | dev_name = get_word (&args); | |
1339 | ||
1340 | return; | |
5905161c RP |
1341 | } |
1342 | ||
1343 | #if 0 | |
1344 | static | |
1345 | bug_speed (s) | |
1346 | char *s; | |
1347 | { | |
1348 | check_open (); | |
1349 | ||
1350 | if (s) | |
1351 | { | |
1352 | char buffer[100]; | |
1353 | int newrate = atoi (s); | |
1354 | int which = 0; | |
1355 | ||
1356 | if (SERIAL_SETBAUDRATE (desc, newrate)) | |
1357 | error ("Can't use %d baud\n", newrate); | |
1358 | ||
1359 | printf_filtered ("Checking target is in sync\n"); | |
1360 | ||
1361 | printf_filtered ("Sending commands to set target to %d\n", | |
1362 | baudrate); | |
1363 | ||
1364 | sprintf (buffer, "tm %d. N 8 1", baudrate); | |
1365 | bug_write_cr (buffer); | |
1366 | } | |
1367 | } | |
1368 | #endif /* 0 */ | |
1369 | ||
ae87844d | 1370 | struct target_ops bug_ops = |
5905161c RP |
1371 | { |
1372 | "bug", "Remote BUG monitor", | |
1373 | "Use the mvme187 board running the BUG monitor connected\n\ | |
1374 | by a serial line.", | |
1375 | ||
1376 | bug_open, bug_close, | |
1377 | 0, bug_detach, bug_resume, bug_wait, /* attach */ | |
1378 | bug_fetch_register, bug_store_register, | |
1379 | bug_prepare_to_store, | |
1380 | bug_xfer_inferior_memory, | |
1381 | bug_files_info, | |
1382 | bug_insert_breakpoint, bug_remove_breakpoint, /* Breakpoints */ | |
1383 | 0, 0, 0, 0, 0, /* Terminal handling */ | |
1384 | bug_kill, /* FIXME, kill */ | |
1385 | bug_load, | |
1386 | 0, /* lookup_symbol */ | |
1387 | bug_create_inferior, /* create_inferior */ | |
1388 | bug_mourn, /* mourn_inferior FIXME */ | |
1389 | 0, /* can_run */ | |
1390 | 0, /* notice_signals */ | |
1391 | process_stratum, 0, /* next */ | |
1392 | 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */ | |
1393 | 0, 0, /* Section pointers */ | |
1394 | OPS_MAGIC, /* Always the last thing */ | |
1395 | }; | |
1396 | ||
1397 | void | |
1398 | _initialize_remote_bug () | |
1399 | { | |
1400 | add_target (&bug_ops); | |
1401 | ||
1402 | add_com ("bug <command>", class_obscure, bug_com, | |
1403 | "Send a command to the BUG monitor."); | |
5905161c RP |
1404 | |
1405 | add_com ("device", class_obscure, bug_device, | |
1406 | "Set the terminal line for BUG communications"); | |
1407 | ||
1408 | #if 0 | |
1409 | add_com ("speed", class_obscure, bug_speed, | |
1410 | "Set the terminal line speed for BUG communications"); | |
1411 | #endif /* 0 */ | |
1412 | ||
be58e87e RP |
1413 | add_show_from_set |
1414 | (add_set_cmd ("srec-bytes", class_support, var_uinteger, | |
1415 | (char *) &srec_bytes, | |
1416 | "\ | |
1417 | Set the number of bytes represented in each S-record.\n\ | |
1418 | This affects the communication protocol with the remote target.", | |
1419 | &setlist), | |
1420 | &showlist); | |
1421 | ||
1422 | add_show_from_set | |
1423 | (add_set_cmd ("srec-max-retries", class_support, var_uinteger, | |
1424 | (char *) &srec_max_retries, | |
1425 | "\ | |
1426 | Set the number of retries for shipping S-records.\n\ | |
1427 | This affects the communication protocol with the remote target.", | |
1428 | &setlist), | |
1429 | &showlist); | |
1430 | ||
1431 | add_show_from_set | |
1432 | (add_set_cmd ("srec-frame", class_support, var_uinteger, | |
1433 | (char *) &srec_frame, | |
1434 | "\ | |
1435 | Set the number of bytes in an S-record frame.\n\ | |
1436 | This affects the communication protocol with the remote target.", | |
1437 | &setlist), | |
1438 | &showlist); | |
1439 | ||
1440 | add_show_from_set | |
1441 | (add_set_cmd ("srec-noise", class_support, var_zinteger, | |
1442 | (char *) &srec_noise, | |
1443 | "\ | |
1444 | Set number of S-record to send before deliberately flubbing a checksum.\n\ | |
1445 | Zero means flub none at all. This affects the communication protocol\n\ | |
1446 | with the remote target.", | |
1447 | &setlist), | |
1448 | &showlist); | |
1449 | ||
1450 | add_show_from_set | |
1451 | (add_set_cmd ("srec-sleep", class_support, var_zinteger, | |
1452 | (char *) &srec_sleep, | |
1453 | "\ | |
1454 | Set number of seconds to sleep after an S-record for a possible error message to arrive.\n\ | |
1455 | This affects the communication protocol with the remote target.", | |
1456 | &setlist), | |
1457 | &showlist); | |
1458 | ||
1459 | add_show_from_set | |
1460 | (add_set_cmd ("srec-echo-pace", class_support, var_boolean, | |
1461 | (char *) &srec_echo_pace, | |
1462 | "\ | |
1463 | Set echo-verification.\n\ | |
1464 | When on, use verification by echo when downloading S-records. This is\n\ | |
1465 | much slower, but generally more reliable.", | |
1466 | &setlist), | |
1467 | &showlist); | |
1468 | ||
5905161c RP |
1469 | dev_name = NULL; |
1470 | } |