Commit | Line | Data |
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1f46923f | 1 | /* Remote debugging interface for Hitachi HMS Monitor Version 1.0 |
03fc5a0b | 2 | Copyright 1992, 1993, 1994, 1995 Free Software Foundation, Inc. |
e17960fb JG |
3 | Contributed by Cygnus Support. Written by Steve Chamberlain |
4 | (sac@cygnus.com). | |
fa4b55a1 | 5 | |
03fc5a0b | 6 | This file is part of GDB. |
fa4b55a1 | 7 | |
03fc5a0b SC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
fa4b55a1 | 12 | |
03fc5a0b SC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
fa4b55a1 | 17 | |
03fc5a0b SC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
fa4b55a1 | 21 | |
fa4b55a1 SC |
22 | #include "defs.h" |
23 | #include "inferior.h" | |
24 | #include "wait.h" | |
25 | #include "value.h" | |
e17960fb | 26 | #include <string.h> |
fa4b55a1 SC |
27 | #include <ctype.h> |
28 | #include <fcntl.h> | |
29 | #include <signal.h> | |
30 | #include <setjmp.h> | |
31 | #include <errno.h> | |
32 | #include "terminal.h" | |
33 | #include "target.h" | |
34 | #include "gdbcore.h" | |
a493d9a6 | 35 | #include "serial.h" |
03fc5a0b | 36 | #include "remote-utils.h" |
fa4b55a1 | 37 | /* External data declarations */ |
ec25d19b | 38 | extern int stop_soon_quietly; /* for wait_for_inferior */ |
fa4b55a1 | 39 | |
fa4b55a1 | 40 | /* Forward data declarations */ |
ec25d19b | 41 | extern struct target_ops hms_ops; /* Forward declaration */ |
fa4b55a1 SC |
42 | |
43 | /* Forward function declarations */ | |
44 | static void hms_fetch_registers (); | |
ec25d19b | 45 | static int hms_store_registers (); |
fa4b55a1 | 46 | static void hms_close (); |
ec25d19b | 47 | static int hms_clear_breakpoints (); |
fa4b55a1 SC |
48 | |
49 | extern struct target_ops hms_ops; | |
3b5442f9 SC |
50 | static void hms_drain (); |
51 | static void add_commands (); | |
52 | static void remove_commands (); | |
fa4b55a1 | 53 | |
03fc5a0b | 54 | static int quiet = 1; /* FIXME - can be removed after Dec '94 */ |
a493d9a6 | 55 | |
03fc5a0b | 56 | static DCACHE *remote_dcache; |
a493d9a6 SC |
57 | serial_t desc; |
58 | ||
fa4b55a1 | 59 | |
1f46923f SC |
60 | /*********************************************************************** |
61 | * I/O stuff stolen from remote-eb.c | |
62 | ***********************************************************************/ | |
63 | ||
64 | static int timeout = 2; | |
fa4b55a1 | 65 | |
b52373a2 | 66 | static const char *dev_name; |
1f46923f | 67 | |
fa4b55a1 SC |
68 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that |
69 | hms_open knows that we don't have a file open when the program | |
70 | starts. */ | |
fa4b55a1 | 71 | |
402b0d2e SC |
72 | static int before = 0xdead; |
73 | static int is_open = 0; | |
74 | static int after = 0xdead; | |
a493d9a6 | 75 | int |
ec25d19b | 76 | check_open () |
fa4b55a1 | 77 | { |
03fc5a0b SC |
78 | if (before != 0xdead |
79 | || after != 0xdead) | |
80 | printf ("OUTCH! \n"); | |
ae0ea72e | 81 | if (!is_open) |
ec25d19b SC |
82 | { |
83 | error ("remote device not open"); | |
84 | } | |
fa4b55a1 SC |
85 | } |
86 | ||
ae0ea72e SC |
87 | #define ON 1 |
88 | #define OFF 0 | |
1f46923f SC |
89 | |
90 | /* Read a character from the remote system, doing all the fancy | |
91 | timeout stuff. */ | |
92 | static int | |
93 | readchar () | |
fa4b55a1 | 94 | { |
ae0ea72e | 95 | int buf; |
ec25d19b | 96 | |
a493d9a6 | 97 | buf = SERIAL_READCHAR (desc, timeout); |
1f46923f | 98 | |
a493d9a6 | 99 | if (buf == SERIAL_TIMEOUT) |
3b5442f9 SC |
100 | { |
101 | hms_write (".\r\n", 3); | |
102 | error ("Timeout reading from remote system."); | |
103 | } | |
104 | if (buf == SERIAL_ERROR) | |
105 | { | |
106 | error ("Serial port error!"); | |
107 | } | |
1f46923f | 108 | |
791d4d7d | 109 | if (!quiet || remote_debug) |
199b2450 | 110 | printf_unfiltered ("%c", buf); |
ec25d19b | 111 | |
1f46923f | 112 | return buf & 0x7f; |
fa4b55a1 SC |
113 | } |
114 | ||
03fc5a0b SC |
115 | static void |
116 | flush () | |
402b0d2e SC |
117 | { |
118 | while (1) | |
119 | { | |
120 | int b = SERIAL_READCHAR (desc, 0); | |
121 | if (b == SERIAL_TIMEOUT) | |
122 | return; | |
123 | } | |
124 | } | |
125 | ||
fa4b55a1 | 126 | static int |
1f46923f | 127 | readchar_nofail () |
fa4b55a1 | 128 | { |
ae0ea72e | 129 | int buf; |
ec25d19b | 130 | |
a493d9a6 SC |
131 | buf = SERIAL_READCHAR (desc, timeout); |
132 | if (buf == SERIAL_TIMEOUT) | |
ec25d19b | 133 | buf = 0; |
791d4d7d | 134 | if (!quiet || remote_debug) |
199b2450 | 135 | printf_unfiltered ("%c", buf); |
ec25d19b | 136 | |
fa4b55a1 | 137 | return buf & 0x7f; |
ae0ea72e | 138 | |
fa4b55a1 SC |
139 | } |
140 | ||
ec25d19b | 141 | /* Keep discarding input from the remote system, until STRING is found. |
fa4b55a1 SC |
142 | Let the user break out immediately. */ |
143 | static void | |
144 | expect (string) | |
145 | char *string; | |
146 | { | |
147 | char *p = string; | |
402b0d2e | 148 | char c; |
fa4b55a1 SC |
149 | immediate_quit = 1; |
150 | while (1) | |
151 | { | |
03fc5a0b | 152 | c = readchar (); |
402b0d2e | 153 | if (c == *p) |
fa4b55a1 SC |
154 | { |
155 | p++; | |
156 | if (*p == '\0') | |
157 | { | |
158 | immediate_quit = 0; | |
159 | return; | |
160 | } | |
161 | } | |
03fc5a0b | 162 | else |
402b0d2e SC |
163 | { |
164 | p = string; | |
165 | if (c == *p) | |
166 | p++; | |
167 | } | |
fa4b55a1 SC |
168 | } |
169 | } | |
170 | ||
171 | /* Keep discarding input until we see the hms prompt. | |
172 | ||
173 | The convention for dealing with the prompt is that you | |
174 | o give your command | |
175 | o *then* wait for the prompt. | |
176 | ||
177 | Thus the last thing that a procedure does with the serial line | |
178 | will be an expect_prompt(). Exception: hms_resume does not | |
179 | wait for the prompt, because the terminal is being handed over | |
180 | to the inferior. However, the next thing which happens after that | |
181 | is a hms_wait which does wait for the prompt. | |
182 | Note that this includes abnormal exit, e.g. error(). This is | |
183 | necessary to prevent getting into states from which we can't | |
184 | recover. */ | |
185 | static void | |
186 | expect_prompt () | |
187 | { | |
fa4b55a1 SC |
188 | expect ("HMS>"); |
189 | } | |
190 | ||
191 | /* Get a hex digit from the remote system & return its value. | |
192 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ | |
193 | static int | |
194 | get_hex_digit (ignore_space) | |
195 | int ignore_space; | |
196 | { | |
197 | int ch; | |
ec25d19b | 198 | |
fa4b55a1 SC |
199 | while (1) |
200 | { | |
201 | ch = readchar (); | |
202 | if (ch >= '0' && ch <= '9') | |
203 | return ch - '0'; | |
204 | else if (ch >= 'A' && ch <= 'F') | |
205 | return ch - 'A' + 10; | |
206 | else if (ch >= 'a' && ch <= 'f') | |
207 | return ch - 'a' + 10; | |
208 | else if (ch == ' ' && ignore_space) | |
209 | ; | |
210 | else | |
211 | { | |
212 | expect_prompt (); | |
213 | error ("Invalid hex digit from remote system."); | |
214 | } | |
215 | } | |
216 | } | |
217 | ||
218 | /* Get a byte from hms_desc and put it in *BYT. Accept any number | |
219 | leading spaces. */ | |
220 | static void | |
221 | get_hex_byte (byt) | |
222 | char *byt; | |
223 | { | |
224 | int val; | |
225 | ||
226 | val = get_hex_digit (1) << 4; | |
227 | val |= get_hex_digit (0); | |
228 | *byt = val; | |
229 | } | |
230 | ||
231 | /* Read a 32-bit hex word from the hms, preceded by a space */ | |
ec25d19b SC |
232 | static long |
233 | get_hex_word () | |
fa4b55a1 SC |
234 | { |
235 | long val; | |
236 | int j; | |
ec25d19b | 237 | |
fa4b55a1 SC |
238 | val = 0; |
239 | for (j = 0; j < 8; j++) | |
ec25d19b | 240 | val = (val << 4) + get_hex_digit (j == 0); |
fa4b55a1 SC |
241 | return val; |
242 | } | |
fa4b55a1 | 243 | |
ec25d19b | 244 | /* Called when SIGALRM signal sent due to alarm() timeout. */ |
fa4b55a1 SC |
245 | |
246 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
247 | NEED_ARTIFICIAL_TRAP calls to hms_wait should just return | |
248 | SIGTRAP without actually waiting for anything. */ | |
249 | ||
250 | static int need_artificial_trap = 0; | |
251 | ||
252 | void | |
ec25d19b SC |
253 | hms_kill (arg, from_tty) |
254 | char *arg; | |
255 | int from_tty; | |
fa4b55a1 | 256 | { |
fa4b55a1 | 257 | |
fa4b55a1 | 258 | } |
1f46923f | 259 | |
fa4b55a1 SC |
260 | /* This is called not only when we first attach, but also when the |
261 | user types "run" after having attached. */ | |
262 | void | |
263 | hms_create_inferior (execfile, args, env) | |
264 | char *execfile; | |
265 | char *args; | |
266 | char **env; | |
267 | { | |
268 | int entry_pt; | |
ec25d19b | 269 | char buffer[100]; |
fa4b55a1 SC |
270 | |
271 | if (args && *args) | |
ec25d19b | 272 | error ("Can't pass arguments to remote hms process."); |
fa4b55a1 SC |
273 | |
274 | if (execfile == 0 || exec_bfd == 0) | |
ec25d19b | 275 | error ("No exec file specified"); |
fa4b55a1 SC |
276 | |
277 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
ec25d19b | 278 | check_open (); |
1f46923f | 279 | |
ec25d19b SC |
280 | hms_kill (NULL, NULL); |
281 | hms_clear_breakpoints (); | |
ae0ea72e | 282 | init_wait_for_inferior (); |
ec25d19b SC |
283 | hms_write_cr (""); |
284 | expect_prompt (); | |
fa4b55a1 | 285 | |
ae0ea72e | 286 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
45dc9be3 | 287 | proceed (entry_pt, TARGET_SIGNAL_DEFAULT, 0); |
fa4b55a1 SC |
288 | } |
289 | ||
fa4b55a1 SC |
290 | /* Open a connection to a remote debugger. |
291 | NAME is the filename used for communication, then a space, | |
292 | then the baud rate. | |
293 | */ | |
294 | ||
295 | static char * | |
ec25d19b SC |
296 | find_end_of_word (s) |
297 | char *s; | |
fa4b55a1 | 298 | { |
ec25d19b SC |
299 | while (*s && !isspace (*s)) |
300 | s++; | |
fa4b55a1 SC |
301 | return s; |
302 | } | |
303 | ||
ec25d19b SC |
304 | static char * |
305 | get_word (p) | |
306 | char **p; | |
fa4b55a1 SC |
307 | { |
308 | char *s = *p; | |
ec25d19b | 309 | char *word; |
fa4b55a1 SC |
310 | char *copy; |
311 | size_t len; | |
312 | ||
ec25d19b SC |
313 | while (isspace (*s)) |
314 | s++; | |
fa4b55a1 SC |
315 | |
316 | word = s; | |
317 | ||
318 | len = 0; | |
319 | ||
ec25d19b SC |
320 | while (*s && !isspace (*s)) |
321 | { | |
322 | s++; | |
323 | len++; | |
324 | ||
325 | } | |
326 | copy = xmalloc (len + 1); | |
327 | memcpy (copy, word, len); | |
fa4b55a1 SC |
328 | copy[len] = 0; |
329 | *p = s; | |
330 | return copy; | |
331 | } | |
332 | ||
333 | static int baudrate = 9600; | |
1f46923f SC |
334 | |
335 | static int | |
ec25d19b | 336 | is_baudrate_right () |
1f46923f | 337 | { |
ae0ea72e | 338 | int ok; |
ec25d19b | 339 | |
1f46923f | 340 | /* Put this port into NORMAL mode, send the 'normal' character */ |
ae0ea72e | 341 | |
ec25d19b | 342 | hms_write ("\001", 1); /* Control A */ |
3b5442f9 | 343 | hms_write ("\r\n", 2); /* Cr */ |
ae0ea72e | 344 | |
ec25d19b SC |
345 | while (1) |
346 | { | |
a493d9a6 | 347 | ok = SERIAL_READCHAR (desc, timeout); |
ec25d19b SC |
348 | if (ok < 0) |
349 | break; | |
350 | } | |
ae0ea72e | 351 | |
ec25d19b SC |
352 | hms_write ("r", 1); |
353 | ||
354 | if (readchar_nofail () == 'r') | |
355 | return 1; | |
1f46923f SC |
356 | |
357 | /* Not the right baudrate, or the board's not on */ | |
358 | return 0; | |
1f46923f SC |
359 | } |
360 | static void | |
ec25d19b | 361 | set_rate () |
1f46923f | 362 | { |
a493d9a6 | 363 | if (!SERIAL_SETBAUDRATE (desc, baudrate)) |
ec25d19b | 364 | error ("Can't set baudrate"); |
1f46923f SC |
365 | } |
366 | ||
1f46923f | 367 | |
fa4b55a1 SC |
368 | |
369 | /* Close out all files and local state before this target loses control. */ | |
370 | ||
371 | static void | |
372 | hms_close (quitting) | |
373 | int quitting; | |
374 | { | |
fa4b55a1 | 375 | /* Clear any break points */ |
3b5442f9 | 376 | remove_commands (); |
ec25d19b | 377 | hms_clear_breakpoints (); |
ec25d19b | 378 | sleep (1); /* Let any output make it all the way back */ |
a493d9a6 SC |
379 | if (is_open) |
380 | { | |
3b5442f9 | 381 | SERIAL_WRITE (desc, "R\r\n", 3); |
a493d9a6 SC |
382 | SERIAL_CLOSE (desc); |
383 | } | |
ae0ea72e | 384 | is_open = 0; |
fa4b55a1 SC |
385 | } |
386 | ||
3b5442f9 | 387 | /* Terminate the open connection to the remote debugger. Use this |
03fc5a0b | 388 | when you want to detach and do something else with your gdb. */ void |
ec25d19b | 389 | hms_detach (args, from_tty) |
fa4b55a1 SC |
390 | char *args; |
391 | int from_tty; | |
392 | { | |
ae0ea72e | 393 | if (is_open) |
ec25d19b SC |
394 | { |
395 | hms_clear_breakpoints (); | |
396 | } | |
397 | ||
3b5442f9 | 398 | pop_target (); /* calls hms_close to do the real work |
03fc5a0b | 399 | */ |
fa4b55a1 | 400 | if (from_tty) |
3b5442f9 SC |
401 | printf_filtered ("Ending remote %s debugging\n", |
402 | target_shortname); | |
fa4b55a1 | 403 | } |
ec25d19b | 404 | |
fa4b55a1 SC |
405 | /* Tell the remote machine to resume. */ |
406 | ||
407 | void | |
25286543 | 408 | hms_resume (pid, step, sig) |
67ac9759 | 409 | int pid, step; |
3b5442f9 SC |
410 | enum target_signal |
411 | sig; | |
fa4b55a1 | 412 | { |
03fc5a0b | 413 | dcache_flush (remote_dcache); |
ec25d19b SC |
414 | |
415 | if (step) | |
416 | { | |
417 | hms_write_cr ("s"); | |
418 | expect ("Step>"); | |
419 | ||
420 | /* Force the next hms_wait to return a trap. Not doing anything | |
03fc5a0b SC |
421 | about I/O from the target means that the user has to type "continue" |
422 | to see any. FIXME, this should be fixed. */ | |
ec25d19b SC |
423 | need_artificial_trap = 1; |
424 | } | |
fa4b55a1 | 425 | else |
ec25d19b SC |
426 | { |
427 | hms_write_cr ("g"); | |
428 | expect ("g"); | |
429 | } | |
fa4b55a1 SC |
430 | } |
431 | ||
3b5442f9 | 432 | /* Wait until the remote machine stops, then return, storing status in |
03fc5a0b | 433 | STATUS just as `wait' would. */ |
fa4b55a1 SC |
434 | |
435 | int | |
de43d7d0 SG |
436 | hms_wait (pid, status) |
437 | int pid; | |
67ac9759 | 438 | struct target_waitstatus *status; |
fa4b55a1 | 439 | { |
3b5442f9 SC |
440 | /* Strings to look for. '?' means match any single character. Note |
441 | that with the algorithm we use, the initial character of the string | |
442 | cannot recur in the string, or we will not find some cases of the | |
443 | string in the input. */ | |
ec25d19b | 444 | |
96743d3c | 445 | static char bpt[] = "At breakpoint:"; |
ec25d19b | 446 | |
3b5442f9 SC |
447 | /* It would be tempting to look for "\n[__exit + 0x8]\n" but that |
448 | requires loading symbols with "yc i" and even if we did do that we | |
03fc5a0b SC |
449 | don't know that the file has symbols. */ |
450 | static char exitmsg[] = "HMS>"; | |
fa4b55a1 SC |
451 | char *bp = bpt; |
452 | char *ep = exitmsg; | |
453 | ||
3b5442f9 SC |
454 | /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. |
455 | */ | |
fa4b55a1 | 456 | char swallowed[50]; |
ec25d19b | 457 | |
fa4b55a1 SC |
458 | /* Current position in swallowed. */ |
459 | char *swallowed_p = swallowed; | |
460 | ||
461 | int ch; | |
462 | int ch_handled; | |
463 | int old_timeout = timeout; | |
3b5442f9 SC |
464 | int |
465 | old_immediate_quit = immediate_quit; | |
1f46923f | 466 | int swallowed_cr = 0; |
ec25d19b | 467 | |
67ac9759 JK |
468 | status->kind = TARGET_WAITKIND_EXITED; |
469 | status->value.integer = 0; | |
fa4b55a1 SC |
470 | |
471 | if (need_artificial_trap != 0) | |
ec25d19b | 472 | { |
3b5442f9 SC |
473 | status->kind = |
474 | TARGET_WAITKIND_STOPPED; | |
67ac9759 | 475 | status->value.sig = TARGET_SIGNAL_TRAP; |
ec25d19b SC |
476 | need_artificial_trap--; |
477 | return 0; | |
478 | } | |
fa4b55a1 | 479 | |
63eef03a | 480 | timeout = 5; /* Don't time out for a while - user program is running. |
3b5442f9 | 481 | */ |
1f46923f | 482 | immediate_quit = 1; /* Helps ability to QUIT */ |
ec25d19b | 483 | while (1) |
96743d3c | 484 | { |
ec25d19b SC |
485 | QUIT; /* Let user quit and leave process running */ |
486 | ch_handled = 0; | |
487 | ch = readchar (); | |
488 | if (ch == *bp) | |
489 | { | |
490 | bp++; | |
491 | if (*bp == '\0') | |
492 | break; | |
493 | ch_handled = 1; | |
494 | ||
495 | *swallowed_p++ = ch; | |
496 | } | |
497 | else | |
498 | { | |
499 | bp = bpt; | |
500 | } | |
3b5442f9 SC |
501 | if |
502 | (ch == *ep || *ep == '?') | |
03fc5a0b SC |
503 | { |
504 | ep++; | |
505 | if (*ep == '\0') | |
506 | break; | |
507 | ||
508 | if (!ch_handled) | |
509 | *swallowed_p++ = ch; | |
510 | ch_handled = | |
511 | 1; | |
512 | } | |
ec25d19b SC |
513 | else |
514 | { | |
515 | ep = exitmsg; | |
516 | } | |
517 | ||
518 | if (!ch_handled) | |
519 | { | |
520 | char *p; | |
521 | ||
522 | /* Print out any characters which have been swallowed. */ | |
523 | for (p = swallowed; p < swallowed_p; ++p) | |
7baea946 | 524 | putchar_unfiltered (*p); |
ec25d19b SC |
525 | swallowed_p = swallowed; |
526 | ||
527 | if ((ch != '\r' && ch != '\n') || swallowed_cr > 10) | |
528 | { | |
7baea946 | 529 | putchar_unfiltered (ch); |
ec25d19b SC |
530 | swallowed_cr = 10; |
531 | } | |
532 | swallowed_cr++; | |
533 | ||
534 | } | |
96743d3c | 535 | } |
ec25d19b | 536 | if (*bp == '\0') |
96743d3c | 537 | { |
67ac9759 JK |
538 | status->kind = TARGET_WAITKIND_STOPPED; |
539 | status->value.sig = TARGET_SIGNAL_TRAP; | |
ec25d19b SC |
540 | expect_prompt (); |
541 | } | |
542 | else | |
96743d3c | 543 | { |
67ac9759 | 544 | status->kind = TARGET_WAITKIND_EXITED; |
3b5442f9 SC |
545 | status->value.integer = |
546 | TARGET_SIGNAL_STOP; | |
96743d3c | 547 | } |
ec25d19b | 548 | |
fa4b55a1 SC |
549 | timeout = old_timeout; |
550 | immediate_quit = old_immediate_quit; | |
3b5442f9 SC |
551 | return |
552 | 0; | |
fa4b55a1 SC |
553 | } |
554 | ||
3b5442f9 | 555 | /* Return the name of register number REGNO in the form input and |
03fc5a0b | 556 | output by hms. |
fa4b55a1 SC |
557 | |
558 | Returns a pointer to a static buffer containing the answer. */ | |
559 | static char * | |
560 | get_reg_name (regno) | |
561 | int regno; | |
562 | { | |
3b5442f9 SC |
563 | static char *rn[] = |
564 | REGISTER_NAMES; | |
ec25d19b | 565 | |
fa4b55a1 | 566 | return rn[regno]; |
fa4b55a1 SC |
567 | } |
568 | ||
03fc5a0b | 569 | /* Read the remote registers. */ |
3b5442f9 | 570 | |
a493d9a6 | 571 | static int |
ec25d19b SC |
572 | gethex (length, start, ok) |
573 | unsigned int length; | |
574 | char *start; | |
575 | int *ok; | |
fa4b55a1 SC |
576 | { |
577 | int result = 0; | |
ec25d19b SC |
578 | |
579 | while (length--) | |
fa4b55a1 | 580 | { |
ec25d19b SC |
581 | result <<= 4; |
582 | if (*start >= 'a' && *start <= 'f') | |
583 | { | |
584 | result += *start - 'a' + 10; | |
585 | } | |
3b5442f9 SC |
586 | else if (*start >= 'A' && |
587 | *start <= 'F') | |
ec25d19b SC |
588 | { |
589 | result += *start - 'A' + 10; | |
590 | } | |
3b5442f9 SC |
591 | else if |
592 | (*start >= '0' && *start <= '9') | |
03fc5a0b SC |
593 | { |
594 | result += *start - '0'; | |
595 | } | |
ec25d19b SC |
596 | else |
597 | *ok = 0; | |
598 | start++; | |
599 | ||
fa4b55a1 | 600 | } |
fa4b55a1 SC |
601 | return result; |
602 | } | |
ec25d19b SC |
603 | static int |
604 | timed_read (buf, n, timeout) | |
3b5442f9 SC |
605 | char |
606 | *buf; | |
fa4b55a1 SC |
607 | |
608 | { | |
609 | int i; | |
610 | char c; | |
ec25d19b | 611 | |
fa4b55a1 | 612 | i = 0; |
ec25d19b SC |
613 | while (i < n) |
614 | { | |
615 | c = readchar (); | |
616 | ||
617 | if (c == 0) | |
618 | return i; | |
619 | buf[i] = c; | |
620 | i++; | |
621 | ||
622 | } | |
623 | return i; | |
fa4b55a1 | 624 | } |
ec25d19b SC |
625 | |
626 | hms_write (a, l) | |
627 | char *a; | |
fa4b55a1 SC |
628 | { |
629 | int i; | |
ec25d19b | 630 | |
a493d9a6 | 631 | SERIAL_WRITE (desc, a, l); |
ae0ea72e | 632 | |
791d4d7d | 633 | if (!quiet || remote_debug) |
3b5442f9 SC |
634 | { |
635 | printf_unfiltered ("<"); | |
636 | for (i = 0; i < l; i++) | |
637 | { | |
638 | printf_unfiltered ("%c", a[i]); | |
639 | } | |
640 | printf_unfiltered (">"); | |
641 | } | |
fa4b55a1 SC |
642 | } |
643 | ||
ec25d19b SC |
644 | hms_write_cr (s) |
645 | char *s; | |
fa4b55a1 | 646 | { |
ec25d19b | 647 | hms_write (s, strlen (s)); |
3b5442f9 | 648 | hms_write ("\r\n", 2); |
1f46923f SC |
649 | } |
650 | ||
edd01519 SC |
651 | #ifdef GDB_TARGET_IS_H8500 |
652 | ||
653 | /* H8/500 monitor reg dump looks like: | |
654 | ||
03fc5a0b SC |
655 | HMS>r |
656 | PC:8000 SR:070C .7NZ.. CP:00 DP:00 EP:00 TP:00 BR:00 | |
657 | R0-R7: FF5A 0001 F4FE F500 0000 F528 F528 F4EE | |
658 | HMS> | |
edd01519 SC |
659 | |
660 | ||
03fc5a0b | 661 | */ |
edd01519 | 662 | |
3b5442f9 SC |
663 | supply_val (n, size, ptr, segptr) |
664 | int n; | |
665 | int size; | |
666 | char *ptr; | |
667 | char *segptr; | |
edd01519 SC |
668 | { |
669 | int ok; | |
670 | char raw[4]; | |
3b5442f9 | 671 | switch (size) |
edd01519 SC |
672 | { |
673 | case 2: | |
3b5442f9 SC |
674 | raw[0] = gethex (2, ptr, &ok); |
675 | raw[1] = gethex (2, ptr + 2, &ok); | |
edd01519 SC |
676 | supply_register (n, raw); |
677 | break; | |
678 | case 1: | |
3b5442f9 | 679 | raw[0] = gethex (2, ptr, &ok); |
edd01519 SC |
680 | supply_register (n, raw); |
681 | break; | |
682 | case 4: | |
683 | { | |
684 | int v = gethex (4, ptr, &ok); | |
685 | v |= gethex (2, segptr, &ok) << 16; | |
686 | raw[0] = 0; | |
3b5442f9 SC |
687 | raw[1] = (v >> 16) & 0xff; |
688 | raw[2] = (v >> 8) & 0xff; | |
689 | raw[3] = (v >> 0) & 0xff; | |
edd01519 SC |
690 | supply_register (n, raw); |
691 | } | |
692 | } | |
693 | ||
694 | } | |
695 | static void | |
696 | hms_fetch_register (dummy) | |
697 | int dummy; | |
698 | { | |
699 | #define REGREPLY_SIZE 108 | |
700 | char linebuf[REGREPLY_SIZE + 1]; | |
701 | int i; | |
702 | int s; | |
703 | int gottok; | |
704 | ||
678ee700 | 705 | LONGEST reg[NUM_REGS]; |
edd01519 SC |
706 | check_open (); |
707 | ||
708 | do | |
709 | { | |
710 | ||
711 | hms_write_cr ("r"); | |
3b5442f9 SC |
712 | expect ("r"); |
713 | s = timed_read (linebuf + 1, REGREPLY_SIZE, 1); | |
edd01519 SC |
714 | |
715 | linebuf[REGREPLY_SIZE] = 0; | |
716 | gottok = 0; | |
717 | if (linebuf[3] == 'P' && | |
718 | linebuf[4] == 'C' && | |
719 | linebuf[5] == ':' && | |
720 | linebuf[105] == 'H' && | |
721 | linebuf[106] == 'M' && | |
722 | linebuf[107] == 'S') | |
723 | { | |
724 | ||
725 | /* | |
03fc5a0b SC |
726 | 012 |
727 | r** | |
728 | -------1---------2---------3---------4---------5----- | |
729 | 345678901234567890123456789012345678901234567890123456 | |
730 | PC:8000 SR:070C .7NZ.. CP:00 DP:00 EP:00 TP:00 BR:00** | |
731 | ---6---------7---------8---------9--------10---- | |
732 | 789012345678901234567890123456789012345678901234 | |
733 | R0-R7: FF5A 0001 F4FE F500 0000 F528 F528 F4EE** | |
734 | ||
735 | 56789 | |
736 | HMS> | |
737 | */ | |
edd01519 SC |
738 | gottok = 1; |
739 | ||
edd01519 | 740 | |
3b5442f9 SC |
741 | supply_val (PC_REGNUM, 4, linebuf + 6, linebuf + 29); |
742 | ||
743 | supply_val (CCR_REGNUM, 2, linebuf + 14); | |
744 | supply_val (SEG_C_REGNUM, 1, linebuf + 29); | |
745 | supply_val (SEG_D_REGNUM, 1, linebuf + 35); | |
746 | supply_val (SEG_E_REGNUM, 1, linebuf + 41); | |
747 | supply_val (SEG_T_REGNUM, 1, linebuf + 47); | |
edd01519 SC |
748 | for (i = 0; i < 8; i++) |
749 | { | |
3b5442f9 SC |
750 | static int sr[8] = |
751 | {35, 35, 35, 35, | |
752 | 41, 41, 47, 47}; | |
edd01519 SC |
753 | |
754 | char raw[4]; | |
755 | char *src = linebuf + 64 + 5 * i; | |
756 | char *segsrc = linebuf + sr[i]; | |
3b5442f9 SC |
757 | supply_val (R0_REGNUM + i, 2, src); |
758 | supply_val (PR0_REGNUM + i, 4, src, segsrc); | |
edd01519 SC |
759 | } |
760 | } | |
761 | if (!gottok) | |
762 | { | |
3b5442f9 SC |
763 | hms_write_cr (""); |
764 | expect ("HMS>"); | |
edd01519 SC |
765 | } |
766 | } | |
767 | while (!gottok); | |
768 | } | |
769 | #endif | |
770 | ||
771 | #ifdef GDB_TARGET_IS_H8300 | |
1f46923f | 772 | static void |
ae0ea72e | 773 | hms_fetch_register (dummy) |
ec25d19b | 774 | int dummy; |
fa4b55a1 SC |
775 | { |
776 | #define REGREPLY_SIZE 79 | |
ec25d19b | 777 | char linebuf[REGREPLY_SIZE + 1]; |
fa4b55a1 | 778 | int i; |
ec25d19b | 779 | int s; |
fa4b55a1 | 780 | int gottok; |
ec25d19b | 781 | |
f4f0d174 | 782 | unsigned LONGEST reg[NUM_REGS]; |
ec25d19b SC |
783 | |
784 | check_open (); | |
785 | ||
786 | do | |
fa4b55a1 | 787 | { |
ec25d19b | 788 | hms_write_cr ("r"); |
3b5442f9 SC |
789 | |
790 | s = timed_read (linebuf, 1, 1); | |
791 | ||
792 | while (linebuf[0] != 'r') | |
793 | s = timed_read (linebuf, 1, 1); | |
794 | ||
795 | s = timed_read (linebuf + 1, REGREPLY_SIZE - 1, 1); | |
ec25d19b SC |
796 | |
797 | linebuf[REGREPLY_SIZE] = 0; | |
798 | gottok = 0; | |
799 | if (linebuf[0] == 'r' && | |
800 | linebuf[3] == 'P' && | |
801 | linebuf[4] == 'C' && | |
802 | linebuf[5] == '=' && | |
803 | linebuf[75] == 'H' && | |
804 | linebuf[76] == 'M' && | |
805 | linebuf[77] == 'S') | |
806 | { | |
807 | /* | |
03fc5a0b SC |
808 | PC=XXXX CCR=XX:XXXXXXXX R0-R7= XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX |
809 | 5436789012345678901234567890123456789012345678901234567890123456789012 | |
810 | 0 1 2 3 4 5 6 | |
811 | */ | |
ec25d19b SC |
812 | gottok = 1; |
813 | ||
814 | reg[PC_REGNUM] = gethex (4, linebuf + 6, &gottok); | |
815 | reg[CCR_REGNUM] = gethex (2, linebuf + 15, &gottok); | |
816 | for (i = 0; i < 8; i++) | |
817 | { | |
818 | reg[i] = gethex (4, linebuf + 34 + 5 * i, &gottok); | |
819 | } | |
820 | } | |
fa4b55a1 | 821 | } |
fa4b55a1 | 822 | while (!gottok); |
ec25d19b SC |
823 | for (i = 0; i < NUM_REGS; i++) |
824 | { | |
825 | char swapped[2]; | |
fa4b55a1 | 826 | |
ec25d19b SC |
827 | swapped[1] = reg[i]; |
828 | swapped[0] = (reg[i]) >> 8; | |
fa4b55a1 | 829 | |
ec25d19b SC |
830 | supply_register (i, swapped); |
831 | } | |
832 | } | |
edd01519 | 833 | #endif |
fa4b55a1 SC |
834 | /* Store register REGNO, or all if REGNO == -1. |
835 | Return errno value. */ | |
ae0ea72e | 836 | static void |
fa4b55a1 SC |
837 | hms_store_register (regno) |
838 | int regno; | |
839 | { | |
ec25d19b | 840 | if (regno == -1) |
ae0ea72e | 841 | { |
ec25d19b SC |
842 | for (regno = 0; regno < NUM_REGS; regno++) |
843 | { | |
844 | hms_store_register (regno); | |
845 | } | |
ae0ea72e | 846 | } |
fa4b55a1 | 847 | else |
ec25d19b SC |
848 | { |
849 | char *name = get_reg_name (regno); | |
850 | char buffer[100]; | |
3b5442f9 SC |
851 | /* Some regs dont really exist */ |
852 | if (!(name[0] == 'p' && name[1] == 'r') | |
853 | && !(name[0] == 'c' && name[1] == 'y') | |
854 | && !(name[0] == 't' && name[1] == 'i') | |
855 | && !(name[0] == 'i' && name[1] == 'n')) | |
856 | { | |
857 | sprintf (buffer, "r %s=%x", name, read_register (regno)); | |
858 | hms_write_cr (buffer); | |
859 | expect_prompt (); | |
860 | } | |
edd01519 | 861 | } |
ec25d19b | 862 | } |
ae0ea72e | 863 | |
edd01519 | 864 | |
fa4b55a1 SC |
865 | /* Get ready to modify the registers array. On machines which store |
866 | individual registers, this doesn't need to do anything. On machines | |
867 | which store all the registers in one fell swoop, this makes sure | |
868 | that registers contains all the registers from the program being | |
869 | debugged. */ | |
870 | ||
871 | void | |
872 | hms_prepare_to_store () | |
873 | { | |
874 | /* Do nothing, since we can store individual regs */ | |
875 | } | |
876 | ||
ec25d19b SC |
877 | static CORE_ADDR |
878 | translate_addr (addr) | |
879 | CORE_ADDR addr; | |
fa4b55a1 SC |
880 | { |
881 | ||
ec25d19b | 882 | return (addr); |
fa4b55a1 SC |
883 | |
884 | } | |
885 | ||
886 | /* Read a word from remote address ADDR and return it. | |
887 | * This goes through the data cache. | |
888 | */ | |
889 | int | |
890 | hms_fetch_word (addr) | |
891 | CORE_ADDR addr; | |
892 | { | |
03fc5a0b | 893 | return dcache_fetch (remote_dcache, addr); |
fa4b55a1 SC |
894 | } |
895 | ||
896 | /* Write a word WORD into remote address ADDR. | |
897 | This goes through the data cache. */ | |
898 | ||
899 | void | |
900 | hms_store_word (addr, word) | |
901 | CORE_ADDR addr; | |
902 | int word; | |
903 | { | |
03fc5a0b | 904 | dcache_poke (remote_dcache, addr, word); |
fa4b55a1 SC |
905 | } |
906 | ||
907 | int | |
ec25d19b | 908 | hms_xfer_inferior_memory (memaddr, myaddr, len, write, target) |
fa4b55a1 SC |
909 | CORE_ADDR memaddr; |
910 | char *myaddr; | |
911 | int len; | |
912 | int write; | |
ec25d19b | 913 | struct target_ops *target; /* ignored */ |
fa4b55a1 SC |
914 | { |
915 | register int i; | |
ec25d19b | 916 | |
fa4b55a1 | 917 | /* Round starting address down to longword boundary. */ |
ec25d19b SC |
918 | register CORE_ADDR addr; |
919 | ||
fa4b55a1 SC |
920 | /* Round ending address up; get number of longwords that makes. */ |
921 | register int count; | |
ec25d19b | 922 | |
fa4b55a1 | 923 | /* Allocate buffer of that many longwords. */ |
ec25d19b | 924 | register int *buffer; |
fa4b55a1 SC |
925 | |
926 | memaddr &= 0xffff; | |
ec25d19b SC |
927 | addr = memaddr & -sizeof (int); |
928 | count = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); | |
fa4b55a1 | 929 | |
ec25d19b | 930 | buffer = (int *) alloca (count * sizeof (int)); |
1f46923f | 931 | |
fa4b55a1 | 932 | if (write) |
ec25d19b SC |
933 | { |
934 | /* Fill start and end extra bytes of buffer with existing memory data. */ | |
fa4b55a1 | 935 | |
ec25d19b SC |
936 | if (addr != memaddr || len < (int) sizeof (int)) |
937 | { | |
938 | /* Need part of initial word -- fetch it. */ | |
939 | buffer[0] = hms_fetch_word (addr); | |
940 | } | |
fa4b55a1 | 941 | |
ec25d19b SC |
942 | if (count > 1) /* FIXME, avoid if even boundary */ |
943 | { | |
944 | buffer[count - 1] | |
945 | = hms_fetch_word (addr + (count - 1) * sizeof (int)); | |
946 | } | |
fa4b55a1 | 947 | |
ec25d19b | 948 | /* Copy data to be written over corresponding part of buffer */ |
fa4b55a1 | 949 | |
ade40d31 | 950 | memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); |
fa4b55a1 | 951 | |
ec25d19b | 952 | /* Write the entire buffer. */ |
fa4b55a1 | 953 | |
ec25d19b SC |
954 | for (i = 0; i < count; i++, addr += sizeof (int)) |
955 | { | |
956 | errno = 0; | |
957 | hms_store_word (addr, buffer[i]); | |
958 | if (errno) | |
959 | { | |
ec25d19b SC |
960 | return 0; |
961 | } | |
962 | ||
963 | } | |
fa4b55a1 | 964 | } |
fa4b55a1 | 965 | else |
fa4b55a1 | 966 | { |
ec25d19b SC |
967 | /* Read all the longwords */ |
968 | for (i = 0; i < count; i++, addr += sizeof (int)) | |
969 | { | |
970 | errno = 0; | |
971 | buffer[i] = hms_fetch_word (addr); | |
972 | if (errno) | |
973 | { | |
974 | return 0; | |
975 | } | |
976 | QUIT; | |
977 | } | |
fa4b55a1 | 978 | |
ec25d19b | 979 | /* Copy appropriate bytes out of the buffer. */ |
ade40d31 | 980 | memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); |
ec25d19b | 981 | } |
fa4b55a1 | 982 | |
fa4b55a1 SC |
983 | return len; |
984 | } | |
985 | ||
fa4b55a1 SC |
986 | int |
987 | hms_write_inferior_memory (memaddr, myaddr, len) | |
988 | CORE_ADDR memaddr; | |
ae0ea72e | 989 | unsigned char *myaddr; |
fa4b55a1 SC |
990 | int len; |
991 | { | |
ae0ea72e SC |
992 | bfd_vma addr; |
993 | int done; | |
ec25d19b | 994 | int todo; |
3b5442f9 | 995 | char buffer[100]; |
ae0ea72e | 996 | done = 0; |
3b5442f9 SC |
997 | hms_write_cr ("."); |
998 | expect_prompt (); | |
ec25d19b | 999 | while (done < len) |
ae0ea72e | 1000 | { |
3b5442f9 | 1001 | char *ptr = buffer; |
ec25d19b SC |
1002 | int thisgo; |
1003 | int idx; | |
1004 | ||
1005 | thisgo = len - done; | |
1006 | if (thisgo > 20) | |
1007 | thisgo = 20; | |
ae0ea72e | 1008 | |
3b5442f9 SC |
1009 | sprintf (ptr, "M.B %4x =", memaddr + done); |
1010 | ptr += 10; | |
ec25d19b SC |
1011 | for (idx = 0; idx < thisgo; idx++) |
1012 | { | |
3b5442f9 SC |
1013 | sprintf (ptr, "%2x ", myaddr[idx + done]); |
1014 | ptr += 3; | |
ec25d19b | 1015 | } |
3b5442f9 | 1016 | hms_write_cr (buffer); |
ec25d19b SC |
1017 | expect_prompt (); |
1018 | done += thisgo; | |
1019 | } | |
fa4b55a1 SC |
1020 | } |
1021 | ||
1022 | void | |
1023 | hms_files_info () | |
1024 | { | |
ec25d19b SC |
1025 | char *file = "nothing"; |
1026 | ||
1027 | if (exec_bfd) | |
1028 | file = bfd_get_filename (exec_bfd); | |
ae0ea72e | 1029 | |
ec25d19b | 1030 | if (exec_bfd) |
ae0ea72e | 1031 | #ifdef __GO32__ |
ec25d19b | 1032 | printf_filtered ("\tAttached to DOS asynctsr and running program %s\n", file); |
ae0ea72e | 1033 | #else |
5905161c | 1034 | printf_filtered ("\tAttached to %s at %d baud and running program %s\n", dev_name, baudrate, file); |
ae0ea72e | 1035 | #endif |
ec25d19b | 1036 | printf_filtered ("\ton an H8/300 processor.\n"); |
fa4b55a1 SC |
1037 | } |
1038 | ||
1039 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
ec25d19b | 1040 | to inferior's memory at MEMADDR. Returns errno value. |
03fc5a0b | 1041 | * sb/sh instructions don't work on unaligned addresses, when TU=1. |
fa4b55a1 SC |
1042 | */ |
1043 | ||
fa4b55a1 SC |
1044 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result |
1045 | at debugger address MYADDR. Returns errno value. */ | |
1046 | int | |
ec25d19b | 1047 | hms_read_inferior_memory (memaddr, myaddr, len) |
fa4b55a1 SC |
1048 | CORE_ADDR memaddr; |
1049 | char *myaddr; | |
1050 | int len; | |
1051 | { | |
1052 | /* Align to nearest low 16 bits */ | |
1053 | int i; | |
ec25d19b | 1054 | |
fa4b55a1 | 1055 | CORE_ADDR start = memaddr; |
ec25d19b SC |
1056 | CORE_ADDR end = memaddr + len - 1; |
1057 | ||
1058 | int ok = 1; | |
1059 | ||
fa4b55a1 | 1060 | /* |
03fc5a0b SC |
1061 | AAAA: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX '................' |
1062 | 012345678901234567890123456789012345678901234567890123456789012345 | |
1063 | 0 1 2 3 4 5 6 | |
1064 | */ | |
fa4b55a1 | 1065 | char buffer[66]; |
ec25d19b SC |
1066 | |
1067 | if (memaddr & 0xf) | |
1068 | abort (); | |
1069 | if (len != 16) | |
1070 | abort (); | |
1071 | ||
1072 | sprintf (buffer, "m %4x %4x", start & 0xffff, end & 0xffff); | |
402b0d2e | 1073 | |
03fc5a0b | 1074 | flush (); |
ec25d19b | 1075 | hms_write_cr (buffer); |
03fc5a0b | 1076 | /* drop the echo and newline */ |
fa4b55a1 | 1077 | for (i = 0; i < 13; i++) |
ec25d19b | 1078 | readchar (); |
fa4b55a1 | 1079 | |
fa4b55a1 SC |
1080 | /* Grab the lines as they come out and fill the area */ |
1081 | /* Skip over cr */ | |
ec25d19b | 1082 | while (1) |
fa4b55a1 | 1083 | { |
ec25d19b SC |
1084 | int p; |
1085 | int i; | |
1086 | int addr; | |
1087 | size_t idx; | |
fa4b55a1 | 1088 | |
ec25d19b SC |
1089 | char byte[16]; |
1090 | ||
1091 | buffer[0] = readchar (); | |
03fc5a0b | 1092 | while (buffer[0] == '\r' |
a87594a5 SC |
1093 | || buffer[0] == '\n') |
1094 | buffer[0] = readchar (); | |
1095 | ||
ec25d19b SC |
1096 | if (buffer[0] == 'M') |
1097 | break; | |
402b0d2e | 1098 | |
03fc5a0b SC |
1099 | for (i = 1; i < 50; i++) |
1100 | { | |
1101 | buffer[i] = readchar (); | |
1102 | } | |
402b0d2e | 1103 | /* sometimes we loose characters in the ascii representation of the |
03fc5a0b SC |
1104 | data. I don't know where. So just scan for the end of line */ |
1105 | i = readchar (); | |
402b0d2e | 1106 | while (i != '\n' && i != '\r') |
03fc5a0b SC |
1107 | i = readchar (); |
1108 | ||
ec25d19b SC |
1109 | /* Now parse the line */ |
1110 | ||
1111 | addr = gethex (4, buffer, &ok); | |
1112 | idx = 6; | |
1113 | for (p = 0; p < 16; p += 2) | |
1114 | { | |
1115 | byte[p] = gethex (2, buffer + idx, &ok); | |
1116 | byte[p + 1] = gethex (2, buffer + idx + 2, &ok); | |
1117 | idx += 5; | |
ec25d19b SC |
1118 | } |
1119 | ||
1120 | for (p = 0; p < 16; p++) | |
1121 | { | |
1122 | if (addr + p >= memaddr && | |
1123 | addr + p < memaddr + len) | |
1124 | { | |
1125 | myaddr[(addr + p) - memaddr] = byte[p]; | |
1126 | ||
1127 | } | |
1128 | ||
1129 | } | |
fa4b55a1 | 1130 | } |
3b5442f9 SC |
1131 | #ifdef GDB_TARGET_IS_H8500 |
1132 | expect ("ore>"); | |
edd01519 | 1133 | #endif |
3b5442f9 | 1134 | #ifdef GDB_TARGET_IS_H8300 |
a493d9a6 | 1135 | expect ("emory>"); |
edd01519 | 1136 | #endif |
3b5442f9 SC |
1137 | hms_write_cr ("."); |
1138 | ||
ec25d19b | 1139 | expect_prompt (); |
fa4b55a1 | 1140 | return len; |
fa4b55a1 SC |
1141 | } |
1142 | ||
edd01519 | 1143 | |
fa4b55a1 | 1144 | |
fa4b55a1 | 1145 | #define MAX_BREAKS 16 |
ec25d19b | 1146 | static int num_brkpts = 0; |
fa4b55a1 | 1147 | static int |
ec25d19b SC |
1148 | hms_insert_breakpoint (addr, save) |
1149 | CORE_ADDR addr; | |
1150 | char *save; /* Throw away, let hms save instructions */ | |
fa4b55a1 | 1151 | { |
ec25d19b SC |
1152 | check_open (); |
1153 | ||
1154 | if (num_brkpts < MAX_BREAKS) | |
1155 | { | |
1156 | char buffer[100]; | |
fa4b55a1 | 1157 | |
ec25d19b SC |
1158 | num_brkpts++; |
1159 | sprintf (buffer, "b %x", addr & 0xffff); | |
1160 | hms_write_cr (buffer); | |
1161 | expect_prompt (); | |
1162 | return (0); | |
1163 | } | |
1164 | else | |
1165 | { | |
199b2450 | 1166 | fprintf_filtered (gdb_stderr, |
ec25d19b SC |
1167 | "Too many break points, break point not installed\n"); |
1168 | return (1); | |
1169 | } | |
fa4b55a1 SC |
1170 | |
1171 | } | |
1172 | static int | |
ec25d19b SC |
1173 | hms_remove_breakpoint (addr, save) |
1174 | CORE_ADDR addr; | |
1175 | char *save; /* Throw away, let hms save instructions */ | |
fa4b55a1 | 1176 | { |
ec25d19b SC |
1177 | if (num_brkpts > 0) |
1178 | { | |
1179 | char buffer[100]; | |
1180 | ||
1181 | num_brkpts--; | |
1182 | sprintf (buffer, "b - %x", addr & 0xffff); | |
1183 | hms_write_cr (buffer); | |
1184 | expect_prompt (); | |
1185 | ||
1186 | } | |
1187 | return (0); | |
fa4b55a1 SC |
1188 | } |
1189 | ||
1190 | /* Clear the hmss notion of what the break points are */ | |
1191 | static int | |
ec25d19b SC |
1192 | hms_clear_breakpoints () |
1193 | { | |
fa4b55a1 | 1194 | |
ec25d19b SC |
1195 | if (is_open) |
1196 | { | |
1197 | hms_write_cr ("b -"); | |
1198 | expect_prompt (); | |
1199 | } | |
fa4b55a1 | 1200 | num_brkpts = 0; |
fa4b55a1 SC |
1201 | } |
1202 | static void | |
ec25d19b SC |
1203 | hms_mourn () |
1204 | { | |
1205 | hms_clear_breakpoints (); | |
71607f9d | 1206 | unpush_target (&hms_ops); |
fa4b55a1 | 1207 | generic_mourn_inferior (); |
fa4b55a1 SC |
1208 | } |
1209 | ||
fa4b55a1 | 1210 | /* Put a command string, in args, out to the hms. The hms is assumed to |
ae0ea72e | 1211 | be in raw mode, all writing/reading done through desc. |
fa4b55a1 SC |
1212 | Ouput from the hms is placed on the users terminal until the |
1213 | prompt from the hms is seen. | |
1214 | FIXME: Can't handle commands that take input. */ | |
1215 | ||
1216 | void | |
1217 | hms_com (args, fromtty) | |
ec25d19b SC |
1218 | char *args; |
1219 | int fromtty; | |
fa4b55a1 | 1220 | { |
ec25d19b SC |
1221 | check_open (); |
1222 | ||
1223 | if (!args) | |
1224 | return; | |
1225 | ||
fa4b55a1 SC |
1226 | /* Clear all input so only command relative output is displayed */ |
1227 | ||
ec25d19b | 1228 | hms_write_cr (args); |
03fc5a0b SC |
1229 | /* hms_write ("\030", 1); */ |
1230 | expect_prompt (); | |
1231 | } | |
1232 | ||
1233 | static void | |
1234 | hms_open (name, from_tty) | |
1235 | char *name; | |
1236 | int from_tty; | |
1237 | { | |
1238 | unsigned int prl; | |
1239 | char *p; | |
1240 | ||
1241 | if (name == 0) | |
1242 | { | |
1243 | name = ""; | |
1244 | } | |
1245 | if (is_open) | |
1246 | hms_close (0); | |
1247 | dev_name = strdup (name); | |
1248 | ||
1249 | if (!(desc = SERIAL_OPEN (dev_name))) | |
1250 | perror_with_name ((char *) dev_name); | |
1251 | ||
1252 | SERIAL_RAW (desc); | |
1253 | is_open = 1; | |
1254 | push_target (&hms_ops); | |
1255 | dcache_init (hms_read_inferior_memory, | |
1256 | hms_write_inferior_memory); | |
1257 | ||
1258 | /* Hello? Are you there? */ | |
1259 | SERIAL_WRITE (desc, "\r\n", 2); | |
ec25d19b | 1260 | expect_prompt (); |
03fc5a0b SC |
1261 | |
1262 | /* Clear any break points */ | |
1263 | hms_clear_breakpoints (); | |
1264 | ||
1265 | printf_filtered ("Connected to remote board running HMS monitor.\n"); | |
1266 | add_commands (); | |
1267 | /* hms_drain (); */ | |
fa4b55a1 SC |
1268 | } |
1269 | ||
1270 | /* Define the target subroutine names */ | |
1271 | ||
ec25d19b SC |
1272 | struct target_ops hms_ops = |
1273 | { | |
1274 | "hms", "Remote HMS monitor", | |
1275 | "Use the H8 evaluation board running the HMS monitor connected\n\ | |
fa4b55a1 SC |
1276 | by a serial line.", |
1277 | ||
ec25d19b SC |
1278 | hms_open, hms_close, |
1279 | 0, hms_detach, hms_resume, hms_wait, /* attach */ | |
1280 | hms_fetch_register, hms_store_register, | |
1281 | hms_prepare_to_store, | |
1282 | hms_xfer_inferior_memory, | |
1283 | hms_files_info, | |
03fc5a0b | 1284 | hms_insert_breakpoint, hms_remove_breakpoint, /* Breakpoints */ |
ec25d19b SC |
1285 | 0, 0, 0, 0, 0, /* Terminal handling */ |
1286 | hms_kill, /* FIXME, kill */ | |
d2d0e51d | 1287 | gr_load_image, |
ec25d19b SC |
1288 | 0, /* lookup_symbol */ |
1289 | hms_create_inferior, /* create_inferior */ | |
1290 | hms_mourn, /* mourn_inferior FIXME */ | |
1291 | 0, /* can_run */ | |
1292 | 0, /* notice_signals */ | |
78b459a7 | 1293 | 0, /* to_stop */ |
ec25d19b SC |
1294 | process_stratum, 0, /* next */ |
1295 | 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */ | |
1296 | 0, 0, /* Section pointers */ | |
1297 | OPS_MAGIC, /* Always the last thing */ | |
fa4b55a1 SC |
1298 | }; |
1299 | ||
03fc5a0b | 1300 | hms_quiet () /* FIXME - this routine can be removed after Dec '94 */ |
fa4b55a1 | 1301 | { |
ec25d19b SC |
1302 | quiet = !quiet; |
1303 | if (quiet) | |
1304 | printf_filtered ("Snoop disabled\n"); | |
1305 | else | |
1306 | printf_filtered ("Snoop enabled\n"); | |
ae0ea72e | 1307 | |
03fc5a0b | 1308 | printf_filtered ("`snoop' is obsolete, please use `set remotedebug'.\n"); |
fa4b55a1 SC |
1309 | } |
1310 | ||
ec25d19b SC |
1311 | hms_device (s) |
1312 | char *s; | |
fa4b55a1 | 1313 | { |
ec25d19b SC |
1314 | if (s) |
1315 | { | |
1316 | dev_name = get_word (&s); | |
1317 | } | |
fa4b55a1 SC |
1318 | } |
1319 | ||
ec25d19b SC |
1320 | static |
1321 | hms_speed (s) | |
1322 | char *s; | |
fa4b55a1 | 1323 | { |
ec25d19b SC |
1324 | check_open (); |
1325 | ||
1326 | if (s) | |
1327 | { | |
1328 | char buffer[100]; | |
1329 | int newrate = atoi (s); | |
1330 | int which = 0; | |
1331 | ||
a493d9a6 | 1332 | if (SERIAL_SETBAUDRATE (desc, newrate)) |
ec25d19b SC |
1333 | error ("Can't use %d baud\n", newrate); |
1334 | ||
1335 | printf_filtered ("Checking target is in sync\n"); | |
1336 | ||
ec25d19b SC |
1337 | printf_filtered ("Sending commands to set target to %d\n", |
1338 | baudrate); | |
1339 | ||
1340 | sprintf (buffer, "tm %d. N 8 1", baudrate); | |
1341 | hms_write_cr (buffer); | |
1342 | } | |
fa4b55a1 SC |
1343 | } |
1344 | ||
1345 | /***********************************************************************/ | |
1346 | ||
3b5442f9 SC |
1347 | static void |
1348 | hms_drain (args, fromtty) | |
1349 | char *args; | |
1350 | int fromtty; | |
3b5442f9 SC |
1351 | { |
1352 | int c; | |
1353 | while (1) | |
1354 | { | |
1355 | c = SERIAL_READCHAR (desc, 1); | |
1356 | if (c == SERIAL_TIMEOUT) | |
1357 | break; | |
1358 | if (c == SERIAL_ERROR) | |
1359 | break; | |
1360 | if (c > ' ' && c < 127) | |
1361 | printf ("%c", c & 0xff); | |
1362 | else | |
1363 | printf ("<%x>", c & 0xff); | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | static void | |
1368 | add_commands () | |
1369 | { | |
1370 | ||
402b0d2e | 1371 | add_com ("hms_drain", class_obscure, hms_drain, |
3b5442f9 SC |
1372 | "Drain pending hms text buffers."); |
1373 | } | |
1374 | ||
1375 | static void | |
1376 | remove_commands () | |
1377 | { | |
1378 | extern struct cmd_list_element *cmdlist; | |
1379 | delete_cmd ("hms-drain", &cmdlist); | |
1380 | } | |
1381 | ||
03fc5a0b | 1382 | |
fa4b55a1 SC |
1383 | void |
1384 | _initialize_remote_hms () | |
1385 | { | |
1386 | add_target (&hms_ops); | |
ec25d19b | 1387 | |
fa4b55a1 | 1388 | add_com ("hms <command>", class_obscure, hms_com, |
ec25d19b | 1389 | "Send a command to the HMS monitor."); |
791d4d7d | 1390 | |
03fc5a0b | 1391 | /* FIXME - hms_quiet and `snoop' can be removed after Dec '94 */ |
fa4b55a1 | 1392 | add_com ("snoop", class_obscure, hms_quiet, |
791d4d7d | 1393 | "Show what commands are going to the monitor (OBSOLETE - see 'set remotedebug')"); |
ae0ea72e | 1394 | |
fa4b55a1 SC |
1395 | add_com ("device", class_obscure, hms_device, |
1396 | "Set the terminal line for HMS communications"); | |
1397 | ||
1398 | add_com ("speed", class_obscure, hms_speed, | |
1399 | "Set the terminal line speed for HMS communications"); | |
ec25d19b | 1400 | |
3ec5a74b | 1401 | dev_name = NULL; |
fa4b55a1 | 1402 | } |