Commit | Line | Data |
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1f46923f | 1 | /* Remote debugging interface for Hitachi HMS Monitor Version 1.0 |
fa4b55a1 | 2 | Copyright 1992 Free Software Foundation, Inc. |
e17960fb JG |
3 | Contributed by Cygnus Support. Written by Steve Chamberlain |
4 | (sac@cygnus.com). | |
fa4b55a1 SC |
5 | |
6 | This file is part of GDB. | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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. */ | |
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" | |
35 | ||
36 | /* External data declarations */ | |
ec25d19b | 37 | extern int stop_soon_quietly; /* for wait_for_inferior */ |
fa4b55a1 | 38 | |
fa4b55a1 | 39 | /* Forward data declarations */ |
ec25d19b | 40 | extern struct target_ops hms_ops; /* Forward declaration */ |
fa4b55a1 SC |
41 | |
42 | /* Forward function declarations */ | |
43 | static void hms_fetch_registers (); | |
ec25d19b | 44 | static int hms_store_registers (); |
fa4b55a1 | 45 | static void hms_close (); |
ec25d19b | 46 | static int hms_clear_breakpoints (); |
fa4b55a1 SC |
47 | |
48 | extern struct target_ops hms_ops; | |
49 | ||
1f46923f SC |
50 | static int quiet = 1; |
51 | ||
1f46923f SC |
52 | /***********************************************************************/ |
53 | /* Caching stuff stolen from remote-nindy.c */ | |
54 | ||
55 | /* The data cache records all the data read from the remote machine | |
56 | since the last time it stopped. | |
57 | ||
58 | Each cache block holds LINE_SIZE bytes of data | |
59 | starting at a multiple-of-LINE_SIZE address. */ | |
60 | ||
1f46923f | 61 | #define LINE_SIZE_POWER 4 |
ec25d19b SC |
62 | #define LINE_SIZE (1<<LINE_SIZE_POWER) /* eg 1<<3 == 8 */ |
63 | #define LINE_SIZE_MASK ((LINE_SIZE-1)) /* eg 7*2+1= 111*/ | |
1f46923f SC |
64 | #define DCACHE_SIZE 64 /* Number of cache blocks */ |
65 | #define XFORM(x) ((x&LINE_SIZE_MASK)>>2) | |
ec25d19b SC |
66 | struct dcache_block |
67 | { | |
68 | struct dcache_block *next, *last; | |
69 | unsigned int addr; /* Address for which data is recorded. */ | |
70 | int data[LINE_SIZE / sizeof (int)]; | |
71 | }; | |
1f46923f SC |
72 | |
73 | struct dcache_block dcache_free, dcache_valid; | |
74 | ||
ec25d19b | 75 | /* Free all the data cache blocks, thus discarding all cached data. */ |
1f46923f SC |
76 | static |
77 | void | |
78 | dcache_flush () | |
79 | { | |
80 | register struct dcache_block *db; | |
81 | ||
82 | while ((db = dcache_valid.next) != &dcache_valid) | |
83 | { | |
84 | remque (db); | |
85 | insque (db, &dcache_free); | |
86 | } | |
87 | } | |
88 | ||
89 | /* | |
90 | * If addr is present in the dcache, return the address of the block | |
91 | * containing it. | |
92 | */ | |
93 | static | |
94 | struct dcache_block * | |
95 | dcache_hit (addr) | |
96 | unsigned int addr; | |
97 | { | |
98 | register struct dcache_block *db; | |
99 | ||
100 | if (addr & 3) | |
101 | abort (); | |
102 | ||
103 | /* Search all cache blocks for one that is at this address. */ | |
104 | db = dcache_valid.next; | |
105 | while (db != &dcache_valid) | |
106 | { | |
ec25d19b | 107 | if ((addr & ~LINE_SIZE_MASK) == db->addr) |
1f46923f SC |
108 | return db; |
109 | db = db->next; | |
110 | } | |
111 | return NULL; | |
112 | } | |
113 | ||
114 | /* Return the int data at address ADDR in dcache block DC. */ | |
115 | static | |
116 | int | |
117 | dcache_value (db, addr) | |
118 | struct dcache_block *db; | |
119 | unsigned int addr; | |
120 | { | |
121 | if (addr & 3) | |
122 | abort (); | |
ec25d19b | 123 | return (db->data[XFORM (addr)]); |
1f46923f SC |
124 | } |
125 | ||
126 | /* Get a free cache block, put or keep it on the valid list, | |
127 | and return its address. The caller should store into the block | |
128 | the address and data that it describes, then remque it from the | |
129 | free list and insert it into the valid list. This procedure | |
130 | prevents errors from creeping in if a ninMemGet is interrupted | |
131 | (which used to put garbage blocks in the valid list...). */ | |
132 | static | |
133 | struct dcache_block * | |
134 | dcache_alloc () | |
135 | { | |
136 | register struct dcache_block *db; | |
137 | ||
138 | if ((db = dcache_free.next) == &dcache_free) | |
139 | { | |
140 | /* If we can't get one from the free list, take last valid and put | |
141 | it on the free list. */ | |
142 | db = dcache_valid.last; | |
143 | remque (db); | |
144 | insque (db, &dcache_free); | |
145 | } | |
146 | ||
147 | remque (db); | |
148 | insque (db, &dcache_valid); | |
149 | return (db); | |
150 | } | |
151 | ||
152 | /* Return the contents of the word at address ADDR in the remote machine, | |
153 | using the data cache. */ | |
154 | static | |
155 | int | |
156 | dcache_fetch (addr) | |
157 | CORE_ADDR addr; | |
158 | { | |
159 | register struct dcache_block *db; | |
160 | ||
161 | db = dcache_hit (addr); | |
162 | if (db == 0) | |
163 | { | |
164 | db = dcache_alloc (); | |
165 | immediate_quit++; | |
ec25d19b | 166 | hms_read_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE); |
1f46923f SC |
167 | immediate_quit--; |
168 | db->addr = addr & ~LINE_SIZE_MASK; | |
ec25d19b | 169 | remque (db); /* Off the free list */ |
1f46923f SC |
170 | insque (db, &dcache_valid); /* On the valid list */ |
171 | } | |
172 | return (dcache_value (db, addr)); | |
173 | } | |
174 | ||
175 | /* Write the word at ADDR both in the data cache and in the remote machine. */ | |
176 | static void | |
177 | dcache_poke (addr, data) | |
178 | CORE_ADDR addr; | |
179 | int data; | |
180 | { | |
181 | register struct dcache_block *db; | |
182 | ||
183 | /* First make sure the word is IN the cache. DB is its cache block. */ | |
184 | db = dcache_hit (addr); | |
185 | if (db == 0) | |
ec25d19b SC |
186 | { |
187 | db = dcache_alloc (); | |
188 | immediate_quit++; | |
189 | hms_write_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE); | |
190 | immediate_quit--; | |
191 | db->addr = addr & ~LINE_SIZE_MASK; | |
192 | remque (db); /* Off the free list */ | |
193 | insque (db, &dcache_valid); /* On the valid list */ | |
194 | } | |
1f46923f SC |
195 | |
196 | /* Modify the word in the cache. */ | |
ec25d19b | 197 | db->data[XFORM (addr)] = data; |
1f46923f SC |
198 | |
199 | /* Send the changed word. */ | |
200 | immediate_quit++; | |
ec25d19b | 201 | hms_write_inferior_memory (addr, (unsigned char *) &data, 4); |
1f46923f SC |
202 | immediate_quit--; |
203 | } | |
204 | ||
205 | /* The cache itself. */ | |
206 | struct dcache_block the_cache[DCACHE_SIZE]; | |
207 | ||
208 | /* Initialize the data cache. */ | |
209 | static void | |
210 | dcache_init () | |
211 | { | |
212 | register i; | |
213 | register struct dcache_block *db; | |
214 | ||
215 | db = the_cache; | |
216 | dcache_free.next = dcache_free.last = &dcache_free; | |
217 | dcache_valid.next = dcache_valid.last = &dcache_valid; | |
ec25d19b | 218 | for (i = 0; i < DCACHE_SIZE; i++, db++) |
1f46923f SC |
219 | insque (db, &dcache_free); |
220 | } | |
fa4b55a1 | 221 | |
1f46923f SC |
222 | /*********************************************************************** |
223 | * I/O stuff stolen from remote-eb.c | |
224 | ***********************************************************************/ | |
225 | ||
226 | static int timeout = 2; | |
fa4b55a1 | 227 | |
b52373a2 | 228 | static const char *dev_name; |
1f46923f | 229 | |
fa4b55a1 SC |
230 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that |
231 | hms_open knows that we don't have a file open when the program | |
232 | starts. */ | |
fa4b55a1 | 233 | |
ae0ea72e | 234 | int is_open = 0; |
ec25d19b SC |
235 | int |
236 | check_open () | |
fa4b55a1 | 237 | { |
ae0ea72e | 238 | if (!is_open) |
ec25d19b SC |
239 | { |
240 | error ("remote device not open"); | |
241 | } | |
fa4b55a1 SC |
242 | } |
243 | ||
ae0ea72e SC |
244 | #define ON 1 |
245 | #define OFF 0 | |
1f46923f SC |
246 | |
247 | /* Read a character from the remote system, doing all the fancy | |
248 | timeout stuff. */ | |
249 | static int | |
250 | readchar () | |
fa4b55a1 | 251 | { |
ae0ea72e | 252 | int buf; |
ec25d19b SC |
253 | |
254 | buf = serial_readchar (timeout); | |
1f46923f | 255 | |
5a6242dd | 256 | if (buf < 0) |
ec25d19b | 257 | error ("Timeout reading from remote system."); |
1f46923f SC |
258 | |
259 | if (!quiet) | |
ec25d19b SC |
260 | printf ("%c", buf); |
261 | ||
1f46923f | 262 | return buf & 0x7f; |
fa4b55a1 SC |
263 | } |
264 | ||
fa4b55a1 | 265 | static int |
1f46923f | 266 | readchar_nofail () |
fa4b55a1 | 267 | { |
ae0ea72e | 268 | int buf; |
ec25d19b SC |
269 | |
270 | buf = serial_readchar (timeout); | |
271 | if (buf < 0) | |
272 | buf = 0; | |
ae0ea72e | 273 | if (!quiet) |
ec25d19b SC |
274 | printf ("%c", buf); |
275 | ||
fa4b55a1 | 276 | return buf & 0x7f; |
ae0ea72e | 277 | |
fa4b55a1 SC |
278 | } |
279 | ||
ec25d19b | 280 | /* Keep discarding input from the remote system, until STRING is found. |
fa4b55a1 SC |
281 | Let the user break out immediately. */ |
282 | static void | |
283 | expect (string) | |
284 | char *string; | |
285 | { | |
286 | char *p = string; | |
287 | ||
fa4b55a1 SC |
288 | immediate_quit = 1; |
289 | while (1) | |
290 | { | |
ec25d19b | 291 | if (readchar () == *p) |
fa4b55a1 SC |
292 | { |
293 | p++; | |
294 | if (*p == '\0') | |
295 | { | |
296 | immediate_quit = 0; | |
297 | return; | |
298 | } | |
299 | } | |
300 | else | |
301 | p = string; | |
302 | } | |
303 | } | |
304 | ||
305 | /* Keep discarding input until we see the hms prompt. | |
306 | ||
307 | The convention for dealing with the prompt is that you | |
308 | o give your command | |
309 | o *then* wait for the prompt. | |
310 | ||
311 | Thus the last thing that a procedure does with the serial line | |
312 | will be an expect_prompt(). Exception: hms_resume does not | |
313 | wait for the prompt, because the terminal is being handed over | |
314 | to the inferior. However, the next thing which happens after that | |
315 | is a hms_wait which does wait for the prompt. | |
316 | Note that this includes abnormal exit, e.g. error(). This is | |
317 | necessary to prevent getting into states from which we can't | |
318 | recover. */ | |
319 | static void | |
320 | expect_prompt () | |
321 | { | |
fa4b55a1 SC |
322 | expect ("HMS>"); |
323 | } | |
324 | ||
325 | /* Get a hex digit from the remote system & return its value. | |
326 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ | |
327 | static int | |
328 | get_hex_digit (ignore_space) | |
329 | int ignore_space; | |
330 | { | |
331 | int ch; | |
ec25d19b | 332 | |
fa4b55a1 SC |
333 | while (1) |
334 | { | |
335 | ch = readchar (); | |
336 | if (ch >= '0' && ch <= '9') | |
337 | return ch - '0'; | |
338 | else if (ch >= 'A' && ch <= 'F') | |
339 | return ch - 'A' + 10; | |
340 | else if (ch >= 'a' && ch <= 'f') | |
341 | return ch - 'a' + 10; | |
342 | else if (ch == ' ' && ignore_space) | |
343 | ; | |
344 | else | |
345 | { | |
346 | expect_prompt (); | |
347 | error ("Invalid hex digit from remote system."); | |
348 | } | |
349 | } | |
350 | } | |
351 | ||
352 | /* Get a byte from hms_desc and put it in *BYT. Accept any number | |
353 | leading spaces. */ | |
354 | static void | |
355 | get_hex_byte (byt) | |
356 | char *byt; | |
357 | { | |
358 | int val; | |
359 | ||
360 | val = get_hex_digit (1) << 4; | |
361 | val |= get_hex_digit (0); | |
362 | *byt = val; | |
363 | } | |
364 | ||
365 | /* Read a 32-bit hex word from the hms, preceded by a space */ | |
ec25d19b SC |
366 | static long |
367 | get_hex_word () | |
fa4b55a1 SC |
368 | { |
369 | long val; | |
370 | int j; | |
ec25d19b | 371 | |
fa4b55a1 SC |
372 | val = 0; |
373 | for (j = 0; j < 8; j++) | |
ec25d19b | 374 | val = (val << 4) + get_hex_digit (j == 0); |
fa4b55a1 SC |
375 | return val; |
376 | } | |
fa4b55a1 | 377 | |
ec25d19b | 378 | /* Called when SIGALRM signal sent due to alarm() timeout. */ |
fa4b55a1 SC |
379 | |
380 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
381 | NEED_ARTIFICIAL_TRAP calls to hms_wait should just return | |
382 | SIGTRAP without actually waiting for anything. */ | |
383 | ||
384 | static int need_artificial_trap = 0; | |
385 | ||
386 | void | |
ec25d19b SC |
387 | hms_kill (arg, from_tty) |
388 | char *arg; | |
389 | int from_tty; | |
fa4b55a1 | 390 | { |
fa4b55a1 | 391 | |
fa4b55a1 | 392 | } |
1f46923f | 393 | |
fa4b55a1 | 394 | /* |
ec25d19b | 395 | * Download a file specified in 'args', to the hms. |
fa4b55a1 SC |
396 | */ |
397 | static void | |
ec25d19b SC |
398 | hms_load (args, fromtty) |
399 | char *args; | |
400 | int fromtty; | |
fa4b55a1 | 401 | { |
ec25d19b | 402 | bfd *abfd; |
fa4b55a1 | 403 | asection *s; |
ec25d19b SC |
404 | int n; |
405 | char buffer[1024]; | |
ae0ea72e | 406 | |
ec25d19b | 407 | check_open (); |
1f46923f | 408 | |
ec25d19b SC |
409 | dcache_flush (); |
410 | inferior_pid = 0; | |
411 | abfd = bfd_openr (args, 0); | |
412 | if (!abfd) | |
413 | { | |
414 | printf_filtered ("Unable to open file %s\n", args); | |
415 | return; | |
416 | } | |
fa4b55a1 | 417 | |
ec25d19b SC |
418 | if (bfd_check_format (abfd, bfd_object) == 0) |
419 | { | |
420 | printf_filtered ("File is not an object file\n"); | |
421 | return; | |
422 | } | |
fa4b55a1 SC |
423 | |
424 | s = abfd->sections; | |
ec25d19b | 425 | while (s != (asection *) NULL) |
fa4b55a1 | 426 | { |
ec25d19b SC |
427 | if (s->flags & SEC_LOAD) |
428 | { | |
429 | int i; | |
fa4b55a1 | 430 | |
ae0ea72e | 431 | #define DELTA 1024 |
ec25d19b SC |
432 | char *buffer = xmalloc (DELTA); |
433 | ||
434 | printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma, s->vma + s->_raw_size); | |
435 | for (i = 0; i < s->_raw_size; i += DELTA) | |
436 | { | |
437 | int delta = DELTA; | |
438 | ||
439 | if (delta > s->_raw_size - i) | |
440 | delta = s->_raw_size - i; | |
441 | ||
442 | bfd_get_section_contents (abfd, s, buffer, i, delta); | |
443 | hms_write_inferior_memory (s->vma + i, buffer, delta); | |
444 | printf_filtered ("*"); | |
445 | fflush (stdout); | |
446 | } | |
447 | printf_filtered ("\n"); | |
448 | free (buffer); | |
449 | } | |
450 | s = s->next; | |
fa4b55a1 | 451 | } |
ec25d19b SC |
452 | sprintf (buffer, "r PC=%x", abfd->start_address); |
453 | hms_write_cr (buffer); | |
454 | expect_prompt (); | |
fa4b55a1 SC |
455 | } |
456 | ||
457 | /* This is called not only when we first attach, but also when the | |
458 | user types "run" after having attached. */ | |
459 | void | |
460 | hms_create_inferior (execfile, args, env) | |
461 | char *execfile; | |
462 | char *args; | |
463 | char **env; | |
464 | { | |
465 | int entry_pt; | |
ec25d19b | 466 | char buffer[100]; |
fa4b55a1 SC |
467 | |
468 | if (args && *args) | |
ec25d19b | 469 | error ("Can't pass arguments to remote hms process."); |
fa4b55a1 SC |
470 | |
471 | if (execfile == 0 || exec_bfd == 0) | |
ec25d19b | 472 | error ("No exec file specified"); |
fa4b55a1 SC |
473 | |
474 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
ec25d19b | 475 | check_open (); |
1f46923f | 476 | |
ec25d19b SC |
477 | hms_kill (NULL, NULL); |
478 | hms_clear_breakpoints (); | |
ae0ea72e | 479 | init_wait_for_inferior (); |
ec25d19b SC |
480 | hms_write_cr (""); |
481 | expect_prompt (); | |
fa4b55a1 | 482 | |
ae0ea72e | 483 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
ec25d19b | 484 | proceed (entry_pt, -1, 0); |
fa4b55a1 SC |
485 | } |
486 | ||
fa4b55a1 SC |
487 | /* Open a connection to a remote debugger. |
488 | NAME is the filename used for communication, then a space, | |
489 | then the baud rate. | |
490 | */ | |
491 | ||
492 | static char * | |
ec25d19b SC |
493 | find_end_of_word (s) |
494 | char *s; | |
fa4b55a1 | 495 | { |
ec25d19b SC |
496 | while (*s && !isspace (*s)) |
497 | s++; | |
fa4b55a1 SC |
498 | return s; |
499 | } | |
500 | ||
ec25d19b SC |
501 | static char * |
502 | get_word (p) | |
503 | char **p; | |
fa4b55a1 SC |
504 | { |
505 | char *s = *p; | |
ec25d19b | 506 | char *word; |
fa4b55a1 SC |
507 | char *copy; |
508 | size_t len; | |
509 | ||
ec25d19b SC |
510 | while (isspace (*s)) |
511 | s++; | |
fa4b55a1 SC |
512 | |
513 | word = s; | |
514 | ||
515 | len = 0; | |
516 | ||
ec25d19b SC |
517 | while (*s && !isspace (*s)) |
518 | { | |
519 | s++; | |
520 | len++; | |
521 | ||
522 | } | |
523 | copy = xmalloc (len + 1); | |
524 | memcpy (copy, word, len); | |
fa4b55a1 SC |
525 | copy[len] = 0; |
526 | *p = s; | |
527 | return copy; | |
528 | } | |
529 | ||
530 | static int baudrate = 9600; | |
1f46923f SC |
531 | |
532 | static int | |
ec25d19b | 533 | is_baudrate_right () |
1f46923f | 534 | { |
ae0ea72e | 535 | int ok; |
ec25d19b | 536 | |
1f46923f | 537 | /* Put this port into NORMAL mode, send the 'normal' character */ |
ae0ea72e | 538 | |
ec25d19b SC |
539 | hms_write ("\001", 1); /* Control A */ |
540 | hms_write ("\r", 1); /* Cr */ | |
ae0ea72e | 541 | |
ec25d19b SC |
542 | while (1) |
543 | { | |
544 | ok = serial_readchar (timeout); | |
545 | if (ok < 0) | |
546 | break; | |
547 | } | |
ae0ea72e | 548 | |
ec25d19b SC |
549 | hms_write ("r", 1); |
550 | ||
551 | if (readchar_nofail () == 'r') | |
552 | return 1; | |
1f46923f SC |
553 | |
554 | /* Not the right baudrate, or the board's not on */ | |
555 | return 0; | |
1f46923f SC |
556 | } |
557 | static void | |
ec25d19b | 558 | set_rate () |
1f46923f | 559 | { |
ec25d19b SC |
560 | if (!serial_setbaudrate (baudrate)) |
561 | error ("Can't set baudrate"); | |
1f46923f SC |
562 | } |
563 | ||
564 | static void | |
ec25d19b | 565 | get_baudrate_right () |
1f46923f | 566 | { |
3ec5a74b | 567 | #if 0 |
ec25d19b SC |
568 | while (!is_baudrate_right ()) |
569 | { | |
570 | baudrate = serial_nextbaudrate (baudrate); | |
571 | if (baudrate == 0) | |
572 | { | |
573 | printf_filtered ("Board not yet in sync\n"); | |
574 | break; | |
575 | } | |
576 | printf_filtered ("Board not responding, trying %d baud\n", baudrate); | |
577 | QUIT; | |
578 | serial_setbaudrate (baudrate); | |
1f46923f | 579 | } |
3ec5a74b | 580 | #endif |
1f46923f SC |
581 | } |
582 | ||
fa4b55a1 SC |
583 | static void |
584 | hms_open (name, from_tty) | |
585 | char *name; | |
586 | int from_tty; | |
587 | { | |
1f46923f | 588 | |
fa4b55a1 SC |
589 | unsigned int prl; |
590 | char *p; | |
ec25d19b SC |
591 | |
592 | if (name == 0) | |
593 | { | |
594 | name = ""; | |
595 | } | |
596 | if (is_open) | |
836e343b | 597 | hms_close (0); |
ec25d19b SC |
598 | if (name && strlen (name)) |
599 | dev_name = strdup (name); | |
600 | if (!serial_open (dev_name)) | |
601 | perror_with_name ((char *) dev_name); | |
602 | serial_raw (); | |
ae0ea72e | 603 | is_open = 1; |
fa4b55a1 | 604 | |
ec25d19b SC |
605 | dcache_init (); |
606 | ||
607 | get_baudrate_right (); | |
fa4b55a1 | 608 | |
fa4b55a1 | 609 | /* Hello? Are you there? */ |
ec25d19b | 610 | serial_write ("\r", 1); |
fa4b55a1 SC |
611 | expect_prompt (); |
612 | ||
613 | /* Clear any break points */ | |
ec25d19b | 614 | hms_clear_breakpoints (); |
fa4b55a1 | 615 | |
ec25d19b | 616 | printf_filtered ("Connected to remote H8/300 HMS system.\n"); |
fa4b55a1 SC |
617 | } |
618 | ||
619 | /* Close out all files and local state before this target loses control. */ | |
620 | ||
621 | static void | |
622 | hms_close (quitting) | |
623 | int quitting; | |
624 | { | |
625 | ||
fa4b55a1 | 626 | /* Clear any break points */ |
ec25d19b | 627 | hms_clear_breakpoints (); |
fa4b55a1 | 628 | |
ec25d19b SC |
629 | /* Put this port back into REMOTE mode */ |
630 | sleep (1); /* Let any output make it all the way back */ | |
631 | serial_write ("R\r", 2); | |
632 | serial_close (); | |
ae0ea72e | 633 | is_open = 0; |
fa4b55a1 SC |
634 | } |
635 | ||
fa4b55a1 SC |
636 | /* Terminate the open connection to the remote debugger. |
637 | Use this when you want to detach and do something else | |
638 | with your gdb. */ | |
639 | void | |
ec25d19b | 640 | hms_detach (args, from_tty) |
fa4b55a1 SC |
641 | char *args; |
642 | int from_tty; | |
643 | { | |
ae0ea72e | 644 | if (is_open) |
ec25d19b SC |
645 | { |
646 | hms_clear_breakpoints (); | |
647 | } | |
648 | ||
649 | pop_target (); /* calls hms_close to do the real work */ | |
fa4b55a1 SC |
650 | if (from_tty) |
651 | printf_filtered ("Ending remote %s debugging\n", target_shortname); | |
fa4b55a1 | 652 | } |
ec25d19b | 653 | |
fa4b55a1 SC |
654 | /* Tell the remote machine to resume. */ |
655 | ||
656 | void | |
657 | hms_resume (step, sig) | |
658 | int step, sig; | |
659 | { | |
ec25d19b SC |
660 | dcache_flush (); |
661 | ||
662 | if (step) | |
663 | { | |
664 | hms_write_cr ("s"); | |
665 | expect ("Step>"); | |
666 | ||
667 | /* Force the next hms_wait to return a trap. Not doing anything | |
fa4b55a1 SC |
668 | about I/O from the target means that the user has to type |
669 | "continue" to see any. FIXME, this should be fixed. */ | |
ec25d19b SC |
670 | need_artificial_trap = 1; |
671 | } | |
fa4b55a1 | 672 | else |
ec25d19b SC |
673 | { |
674 | hms_write_cr ("g"); | |
675 | expect ("g"); | |
676 | } | |
fa4b55a1 SC |
677 | } |
678 | ||
679 | /* Wait until the remote machine stops, then return, | |
680 | storing status in STATUS just as `wait' would. */ | |
681 | ||
682 | int | |
683 | hms_wait (status) | |
684 | WAITTYPE *status; | |
685 | { | |
ec25d19b | 686 | /* Strings to look for. '?' means match any single character. |
fa4b55a1 SC |
687 | Note that with the algorithm we use, the initial character |
688 | of the string cannot recur in the string, or we will not | |
689 | find some cases of the string in the input. */ | |
ec25d19b | 690 | |
96743d3c | 691 | static char bpt[] = "At breakpoint:"; |
ec25d19b | 692 | |
fa4b55a1 SC |
693 | /* It would be tempting to look for "\n[__exit + 0x8]\n" |
694 | but that requires loading symbols with "yc i" and even if | |
695 | we did do that we don't know that the file has symbols. */ | |
696 | static char exitmsg[] = "HMS>"; | |
697 | char *bp = bpt; | |
698 | char *ep = exitmsg; | |
699 | ||
700 | /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */ | |
701 | char swallowed[50]; | |
ec25d19b | 702 | |
fa4b55a1 SC |
703 | /* Current position in swallowed. */ |
704 | char *swallowed_p = swallowed; | |
705 | ||
706 | int ch; | |
707 | int ch_handled; | |
708 | int old_timeout = timeout; | |
709 | int old_immediate_quit = immediate_quit; | |
1f46923f | 710 | int swallowed_cr = 0; |
ec25d19b | 711 | |
fa4b55a1 SC |
712 | WSETEXIT ((*status), 0); |
713 | ||
714 | if (need_artificial_trap != 0) | |
ec25d19b SC |
715 | { |
716 | WSETSTOP ((*status), SIGTRAP); | |
717 | need_artificial_trap--; | |
718 | return 0; | |
719 | } | |
fa4b55a1 | 720 | |
ec25d19b | 721 | timeout = 99999; /* Don't time out -- user program is running. */ |
1f46923f | 722 | immediate_quit = 1; /* Helps ability to QUIT */ |
ec25d19b | 723 | while (1) |
96743d3c | 724 | { |
ec25d19b SC |
725 | QUIT; /* Let user quit and leave process running */ |
726 | ch_handled = 0; | |
727 | ch = readchar (); | |
728 | if (ch == *bp) | |
729 | { | |
730 | bp++; | |
731 | if (*bp == '\0') | |
732 | break; | |
733 | ch_handled = 1; | |
734 | ||
735 | *swallowed_p++ = ch; | |
736 | } | |
737 | else | |
738 | { | |
739 | bp = bpt; | |
740 | } | |
741 | if (ch == *ep || *ep == '?') | |
742 | { | |
743 | ep++; | |
744 | if (*ep == '\0') | |
745 | break; | |
746 | ||
747 | if (!ch_handled) | |
748 | *swallowed_p++ = ch; | |
749 | ch_handled = 1; | |
750 | } | |
751 | else | |
752 | { | |
753 | ep = exitmsg; | |
754 | } | |
755 | ||
756 | if (!ch_handled) | |
757 | { | |
758 | char *p; | |
759 | ||
760 | /* Print out any characters which have been swallowed. */ | |
761 | for (p = swallowed; p < swallowed_p; ++p) | |
762 | putc (*p, stdout); | |
763 | swallowed_p = swallowed; | |
764 | ||
765 | if ((ch != '\r' && ch != '\n') || swallowed_cr > 10) | |
766 | { | |
767 | putc (ch, stdout); | |
768 | swallowed_cr = 10; | |
769 | } | |
770 | swallowed_cr++; | |
771 | ||
772 | } | |
96743d3c | 773 | } |
ec25d19b | 774 | if (*bp == '\0') |
96743d3c | 775 | { |
ec25d19b SC |
776 | WSETSTOP ((*status), SIGTRAP); |
777 | expect_prompt (); | |
778 | } | |
779 | else | |
96743d3c | 780 | { |
ec25d19b | 781 | WSETEXIT ((*status), 0); |
96743d3c | 782 | } |
ec25d19b | 783 | |
fa4b55a1 SC |
784 | timeout = old_timeout; |
785 | immediate_quit = old_immediate_quit; | |
fa4b55a1 SC |
786 | return 0; |
787 | } | |
788 | ||
789 | /* Return the name of register number REGNO | |
790 | in the form input and output by hms. | |
791 | ||
792 | Returns a pointer to a static buffer containing the answer. */ | |
793 | static char * | |
794 | get_reg_name (regno) | |
795 | int regno; | |
796 | { | |
ec25d19b SC |
797 | static char *rn[NUM_REGS] = REGISTER_NAMES; |
798 | ||
fa4b55a1 | 799 | return rn[regno]; |
fa4b55a1 SC |
800 | } |
801 | ||
802 | /* Read the remote registers. */ | |
ec25d19b SC |
803 | static int |
804 | gethex (length, start, ok) | |
805 | unsigned int length; | |
806 | char *start; | |
807 | int *ok; | |
fa4b55a1 SC |
808 | { |
809 | int result = 0; | |
ec25d19b SC |
810 | |
811 | while (length--) | |
fa4b55a1 | 812 | { |
ec25d19b SC |
813 | result <<= 4; |
814 | if (*start >= 'a' && *start <= 'f') | |
815 | { | |
816 | result += *start - 'a' + 10; | |
817 | } | |
818 | else if (*start >= 'A' && *start <= 'F') | |
819 | { | |
820 | result += *start - 'A' + 10; | |
821 | } | |
822 | else if (*start >= '0' && *start <= '9') | |
823 | { | |
824 | result += *start - '0'; | |
825 | } | |
826 | else | |
827 | *ok = 0; | |
828 | start++; | |
829 | ||
fa4b55a1 | 830 | } |
fa4b55a1 SC |
831 | return result; |
832 | } | |
ec25d19b SC |
833 | static int |
834 | timed_read (buf, n, timeout) | |
835 | char *buf; | |
fa4b55a1 SC |
836 | |
837 | { | |
838 | int i; | |
839 | char c; | |
ec25d19b | 840 | |
fa4b55a1 | 841 | i = 0; |
ec25d19b SC |
842 | while (i < n) |
843 | { | |
844 | c = readchar (); | |
845 | ||
846 | if (c == 0) | |
847 | return i; | |
848 | buf[i] = c; | |
849 | i++; | |
850 | ||
851 | } | |
852 | return i; | |
fa4b55a1 SC |
853 | |
854 | } | |
ec25d19b SC |
855 | |
856 | hms_write (a, l) | |
857 | char *a; | |
fa4b55a1 SC |
858 | { |
859 | int i; | |
ec25d19b SC |
860 | |
861 | serial_write (a, l); | |
ae0ea72e | 862 | |
96743d3c | 863 | if (!quiet) |
ec25d19b SC |
864 | for (i = 0; i < l; i++) |
865 | { | |
866 | printf ("%c", a[i]); | |
867 | } | |
fa4b55a1 SC |
868 | } |
869 | ||
ec25d19b SC |
870 | hms_write_cr (s) |
871 | char *s; | |
fa4b55a1 | 872 | { |
ec25d19b SC |
873 | hms_write (s, strlen (s)); |
874 | hms_write ("\r", 1); | |
1f46923f SC |
875 | } |
876 | ||
877 | static void | |
ae0ea72e | 878 | hms_fetch_register (dummy) |
ec25d19b | 879 | int dummy; |
fa4b55a1 SC |
880 | { |
881 | #define REGREPLY_SIZE 79 | |
ec25d19b | 882 | char linebuf[REGREPLY_SIZE + 1]; |
fa4b55a1 | 883 | int i; |
ec25d19b | 884 | int s; |
fa4b55a1 | 885 | int gottok; |
ec25d19b | 886 | |
1f46923f SC |
887 | REGISTER_TYPE reg[NUM_REGS]; |
888 | int foo[8]; | |
ec25d19b SC |
889 | |
890 | check_open (); | |
891 | ||
892 | do | |
fa4b55a1 | 893 | { |
ec25d19b SC |
894 | |
895 | hms_write_cr ("r"); | |
896 | s = timed_read (linebuf, REGREPLY_SIZE, 1); | |
897 | ||
898 | linebuf[REGREPLY_SIZE] = 0; | |
899 | gottok = 0; | |
900 | if (linebuf[0] == 'r' && | |
901 | linebuf[3] == 'P' && | |
902 | linebuf[4] == 'C' && | |
903 | linebuf[5] == '=' && | |
904 | linebuf[75] == 'H' && | |
905 | linebuf[76] == 'M' && | |
906 | linebuf[77] == 'S') | |
907 | { | |
908 | /* | |
fa4b55a1 SC |
909 | PC=XXXX CCR=XX:XXXXXXXX R0-R7= XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX |
910 | 5436789012345678901234567890123456789012345678901234567890123456789012 | |
ec25d19b | 911 | 0 1 2 3 4 5 6 |
fa4b55a1 | 912 | */ |
ec25d19b SC |
913 | gottok = 1; |
914 | ||
915 | reg[PC_REGNUM] = gethex (4, linebuf + 6, &gottok); | |
916 | reg[CCR_REGNUM] = gethex (2, linebuf + 15, &gottok); | |
917 | for (i = 0; i < 8; i++) | |
918 | { | |
919 | reg[i] = gethex (4, linebuf + 34 + 5 * i, &gottok); | |
920 | } | |
921 | } | |
fa4b55a1 | 922 | } |
fa4b55a1 | 923 | while (!gottok); |
ec25d19b SC |
924 | for (i = 0; i < NUM_REGS; i++) |
925 | { | |
926 | char swapped[2]; | |
fa4b55a1 | 927 | |
ec25d19b SC |
928 | swapped[1] = reg[i]; |
929 | swapped[0] = (reg[i]) >> 8; | |
fa4b55a1 | 930 | |
ec25d19b SC |
931 | supply_register (i, swapped); |
932 | } | |
933 | } | |
fa4b55a1 SC |
934 | |
935 | /* Store register REGNO, or all if REGNO == -1. | |
936 | Return errno value. */ | |
ae0ea72e | 937 | static void |
fa4b55a1 SC |
938 | hms_store_register (regno) |
939 | int regno; | |
940 | { | |
941 | ||
1f46923f | 942 | /* printf("hms_store_register() called.\n"); fflush(stdout); /* */ |
ec25d19b | 943 | if (regno == -1) |
ae0ea72e | 944 | { |
ec25d19b SC |
945 | for (regno = 0; regno < NUM_REGS; regno++) |
946 | { | |
947 | hms_store_register (regno); | |
948 | } | |
ae0ea72e | 949 | } |
fa4b55a1 | 950 | else |
ec25d19b SC |
951 | { |
952 | char *name = get_reg_name (regno); | |
953 | char buffer[100]; | |
ae0ea72e | 954 | |
ec25d19b SC |
955 | sprintf (buffer, "r %s=%x", name, read_register (regno)); |
956 | hms_write_cr (buffer); | |
957 | expect_prompt (); | |
958 | } | |
959 | } | |
ae0ea72e | 960 | |
fa4b55a1 SC |
961 | /* Get ready to modify the registers array. On machines which store |
962 | individual registers, this doesn't need to do anything. On machines | |
963 | which store all the registers in one fell swoop, this makes sure | |
964 | that registers contains all the registers from the program being | |
965 | debugged. */ | |
966 | ||
967 | void | |
968 | hms_prepare_to_store () | |
969 | { | |
970 | /* Do nothing, since we can store individual regs */ | |
971 | } | |
972 | ||
ec25d19b SC |
973 | static CORE_ADDR |
974 | translate_addr (addr) | |
975 | CORE_ADDR addr; | |
fa4b55a1 SC |
976 | { |
977 | ||
ec25d19b | 978 | return (addr); |
fa4b55a1 SC |
979 | |
980 | } | |
981 | ||
982 | /* Read a word from remote address ADDR and return it. | |
983 | * This goes through the data cache. | |
984 | */ | |
985 | int | |
986 | hms_fetch_word (addr) | |
987 | CORE_ADDR addr; | |
988 | { | |
ec25d19b | 989 | return dcache_fetch (addr); |
fa4b55a1 SC |
990 | } |
991 | ||
992 | /* Write a word WORD into remote address ADDR. | |
993 | This goes through the data cache. */ | |
994 | ||
995 | void | |
996 | hms_store_word (addr, word) | |
997 | CORE_ADDR addr; | |
998 | int word; | |
999 | { | |
ec25d19b | 1000 | dcache_poke (addr, word); |
fa4b55a1 SC |
1001 | } |
1002 | ||
1003 | int | |
ec25d19b | 1004 | hms_xfer_inferior_memory (memaddr, myaddr, len, write, target) |
fa4b55a1 SC |
1005 | CORE_ADDR memaddr; |
1006 | char *myaddr; | |
1007 | int len; | |
1008 | int write; | |
ec25d19b | 1009 | struct target_ops *target; /* ignored */ |
fa4b55a1 SC |
1010 | { |
1011 | register int i; | |
ec25d19b | 1012 | |
fa4b55a1 | 1013 | /* Round starting address down to longword boundary. */ |
ec25d19b SC |
1014 | register CORE_ADDR addr; |
1015 | ||
fa4b55a1 SC |
1016 | /* Round ending address up; get number of longwords that makes. */ |
1017 | register int count; | |
ec25d19b | 1018 | |
fa4b55a1 | 1019 | /* Allocate buffer of that many longwords. */ |
ec25d19b | 1020 | register int *buffer; |
fa4b55a1 SC |
1021 | |
1022 | memaddr &= 0xffff; | |
ec25d19b SC |
1023 | addr = memaddr & -sizeof (int); |
1024 | count = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); | |
fa4b55a1 | 1025 | |
ec25d19b | 1026 | buffer = (int *) alloca (count * sizeof (int)); |
1f46923f | 1027 | |
fa4b55a1 | 1028 | if (write) |
ec25d19b SC |
1029 | { |
1030 | /* Fill start and end extra bytes of buffer with existing memory data. */ | |
fa4b55a1 | 1031 | |
ec25d19b SC |
1032 | if (addr != memaddr || len < (int) sizeof (int)) |
1033 | { | |
1034 | /* Need part of initial word -- fetch it. */ | |
1035 | buffer[0] = hms_fetch_word (addr); | |
1036 | } | |
fa4b55a1 | 1037 | |
ec25d19b SC |
1038 | if (count > 1) /* FIXME, avoid if even boundary */ |
1039 | { | |
1040 | buffer[count - 1] | |
1041 | = hms_fetch_word (addr + (count - 1) * sizeof (int)); | |
1042 | } | |
fa4b55a1 | 1043 | |
ec25d19b | 1044 | /* Copy data to be written over corresponding part of buffer */ |
fa4b55a1 | 1045 | |
ec25d19b | 1046 | bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); |
fa4b55a1 | 1047 | |
ec25d19b | 1048 | /* Write the entire buffer. */ |
fa4b55a1 | 1049 | |
ec25d19b SC |
1050 | for (i = 0; i < count; i++, addr += sizeof (int)) |
1051 | { | |
1052 | errno = 0; | |
1053 | hms_store_word (addr, buffer[i]); | |
1054 | if (errno) | |
1055 | { | |
1056 | ||
1057 | return 0; | |
1058 | } | |
1059 | ||
1060 | } | |
fa4b55a1 | 1061 | } |
fa4b55a1 | 1062 | else |
fa4b55a1 | 1063 | { |
ec25d19b SC |
1064 | /* Read all the longwords */ |
1065 | for (i = 0; i < count; i++, addr += sizeof (int)) | |
1066 | { | |
1067 | errno = 0; | |
1068 | buffer[i] = hms_fetch_word (addr); | |
1069 | if (errno) | |
1070 | { | |
1071 | return 0; | |
1072 | } | |
1073 | QUIT; | |
1074 | } | |
fa4b55a1 | 1075 | |
ec25d19b SC |
1076 | /* Copy appropriate bytes out of the buffer. */ |
1077 | bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); | |
1078 | } | |
fa4b55a1 | 1079 | |
fa4b55a1 SC |
1080 | return len; |
1081 | } | |
1082 | ||
fa4b55a1 SC |
1083 | int |
1084 | hms_write_inferior_memory (memaddr, myaddr, len) | |
1085 | CORE_ADDR memaddr; | |
ae0ea72e | 1086 | unsigned char *myaddr; |
fa4b55a1 SC |
1087 | int len; |
1088 | { | |
ae0ea72e SC |
1089 | bfd_vma addr; |
1090 | int done; | |
ec25d19b SC |
1091 | int todo; |
1092 | ||
ae0ea72e | 1093 | done = 0; |
ec25d19b | 1094 | while (done < len) |
ae0ea72e | 1095 | { |
ec25d19b SC |
1096 | char buffer[20]; |
1097 | int thisgo; | |
1098 | int idx; | |
1099 | ||
1100 | thisgo = len - done; | |
1101 | if (thisgo > 20) | |
1102 | thisgo = 20; | |
ae0ea72e | 1103 | |
ec25d19b SC |
1104 | sprintf (buffer, "M.B %4x =", memaddr + done); |
1105 | hms_write (buffer, 10); | |
1106 | for (idx = 0; idx < thisgo; idx++) | |
1107 | { | |
1108 | char buf[20]; | |
1109 | ||
1110 | sprintf (buf, "%2x ", myaddr[idx + done]); | |
1111 | hms_write (buf, 3); | |
1112 | } | |
1113 | hms_write_cr (""); | |
1114 | expect_prompt (); | |
1115 | done += thisgo; | |
1116 | } | |
fa4b55a1 | 1117 | |
fa4b55a1 SC |
1118 | } |
1119 | ||
1120 | void | |
1121 | hms_files_info () | |
1122 | { | |
ec25d19b SC |
1123 | char *file = "nothing"; |
1124 | ||
1125 | if (exec_bfd) | |
1126 | file = bfd_get_filename (exec_bfd); | |
ae0ea72e | 1127 | |
ec25d19b | 1128 | if (exec_bfd) |
ae0ea72e | 1129 | #ifdef __GO32__ |
ec25d19b | 1130 | printf_filtered ("\tAttached to DOS asynctsr and running program %s\n", file); |
ae0ea72e | 1131 | #else |
ec25d19b | 1132 | printf_filtered ("\tAttached to %s at %d baud and running program %s\n", file); |
ae0ea72e | 1133 | #endif |
ec25d19b | 1134 | printf_filtered ("\ton an H8/300 processor.\n"); |
fa4b55a1 SC |
1135 | } |
1136 | ||
1137 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
ec25d19b SC |
1138 | to inferior's memory at MEMADDR. Returns errno value. |
1139 | * sb/sh instructions don't work on unaligned addresses, when TU=1. | |
fa4b55a1 SC |
1140 | */ |
1141 | ||
fa4b55a1 SC |
1142 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result |
1143 | at debugger address MYADDR. Returns errno value. */ | |
1144 | int | |
ec25d19b | 1145 | hms_read_inferior_memory (memaddr, myaddr, len) |
fa4b55a1 SC |
1146 | CORE_ADDR memaddr; |
1147 | char *myaddr; | |
1148 | int len; | |
1149 | { | |
1150 | /* Align to nearest low 16 bits */ | |
1151 | int i; | |
ec25d19b | 1152 | |
fa4b55a1 SC |
1153 | #if 0 |
1154 | CORE_ADDR start = memaddr & ~0xf; | |
ec25d19b SC |
1155 | CORE_ADDR end = ((memaddr + len + 16) & ~0xf) - 1; |
1156 | ||
fa4b55a1 SC |
1157 | #endif |
1158 | CORE_ADDR start = memaddr; | |
ec25d19b SC |
1159 | CORE_ADDR end = memaddr + len - 1; |
1160 | ||
1161 | int ok = 1; | |
1162 | ||
fa4b55a1 SC |
1163 | /* |
1164 | AAAA: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX '................' | |
1165 | 012345678901234567890123456789012345678901234567890123456789012345 | |
1166 | 0 1 2 3 4 5 6 | |
1167 | */ | |
1168 | char buffer[66]; | |
ec25d19b SC |
1169 | |
1170 | if (memaddr & 0xf) | |
1171 | abort (); | |
1172 | if (len != 16) | |
1173 | abort (); | |
1174 | ||
1175 | sprintf (buffer, "m %4x %4x", start & 0xffff, end & 0xffff); | |
1176 | hms_write_cr (buffer); | |
fa4b55a1 SC |
1177 | /* drop the echo and newline*/ |
1178 | for (i = 0; i < 13; i++) | |
ec25d19b | 1179 | readchar (); |
fa4b55a1 | 1180 | |
fa4b55a1 SC |
1181 | /* Grab the lines as they come out and fill the area */ |
1182 | /* Skip over cr */ | |
ec25d19b | 1183 | while (1) |
fa4b55a1 | 1184 | { |
ec25d19b SC |
1185 | int p; |
1186 | int i; | |
1187 | int addr; | |
1188 | size_t idx; | |
fa4b55a1 | 1189 | |
ec25d19b SC |
1190 | char byte[16]; |
1191 | ||
1192 | buffer[0] = readchar (); | |
1193 | if (buffer[0] == 'M') | |
1194 | break; | |
1195 | for (i = 1; i < 66; i++) | |
1196 | buffer[i] = readchar (); | |
1197 | ||
1198 | /* Now parse the line */ | |
1199 | ||
1200 | addr = gethex (4, buffer, &ok); | |
1201 | idx = 6; | |
1202 | for (p = 0; p < 16; p += 2) | |
1203 | { | |
1204 | byte[p] = gethex (2, buffer + idx, &ok); | |
1205 | byte[p + 1] = gethex (2, buffer + idx + 2, &ok); | |
1206 | idx += 5; | |
1207 | ||
1208 | } | |
1209 | ||
1210 | for (p = 0; p < 16; p++) | |
1211 | { | |
1212 | if (addr + p >= memaddr && | |
1213 | addr + p < memaddr + len) | |
1214 | { | |
1215 | myaddr[(addr + p) - memaddr] = byte[p]; | |
1216 | ||
1217 | } | |
1218 | ||
1219 | } | |
fa4b55a1 | 1220 | } |
ec25d19b SC |
1221 | hms_write_cr (" "); |
1222 | expect_prompt (); | |
fa4b55a1 | 1223 | return len; |
fa4b55a1 SC |
1224 | } |
1225 | ||
1226 | /* This routine is run as a hook, just before the main command loop is | |
1227 | entered. If gdb is configured for the H8, but has not had its | |
1228 | target specified yet, this will loop prompting the user to do so. | |
1229 | */ | |
1230 | ||
1231 | hms_before_main_loop () | |
1232 | { | |
1233 | char ttyname[100]; | |
1234 | char *p, *p2; | |
1235 | extern FILE *instream; | |
1236 | extern jmp_buf to_top_level; | |
1237 | ||
1238 | push_target (&hms_ops); | |
fa4b55a1 SC |
1239 | } |
1240 | ||
fa4b55a1 | 1241 | #define MAX_BREAKS 16 |
ec25d19b | 1242 | static int num_brkpts = 0; |
fa4b55a1 | 1243 | static int |
ec25d19b SC |
1244 | hms_insert_breakpoint (addr, save) |
1245 | CORE_ADDR addr; | |
1246 | char *save; /* Throw away, let hms save instructions */ | |
fa4b55a1 | 1247 | { |
ec25d19b SC |
1248 | check_open (); |
1249 | ||
1250 | if (num_brkpts < MAX_BREAKS) | |
1251 | { | |
1252 | char buffer[100]; | |
fa4b55a1 | 1253 | |
ec25d19b SC |
1254 | num_brkpts++; |
1255 | sprintf (buffer, "b %x", addr & 0xffff); | |
1256 | hms_write_cr (buffer); | |
1257 | expect_prompt (); | |
1258 | return (0); | |
1259 | } | |
1260 | else | |
1261 | { | |
1262 | fprintf_filtered (stderr, | |
1263 | "Too many break points, break point not installed\n"); | |
1264 | return (1); | |
1265 | } | |
fa4b55a1 SC |
1266 | |
1267 | } | |
1268 | static int | |
ec25d19b SC |
1269 | hms_remove_breakpoint (addr, save) |
1270 | CORE_ADDR addr; | |
1271 | char *save; /* Throw away, let hms save instructions */ | |
fa4b55a1 | 1272 | { |
ec25d19b SC |
1273 | if (num_brkpts > 0) |
1274 | { | |
1275 | char buffer[100]; | |
1276 | ||
1277 | num_brkpts--; | |
1278 | sprintf (buffer, "b - %x", addr & 0xffff); | |
1279 | hms_write_cr (buffer); | |
1280 | expect_prompt (); | |
1281 | ||
1282 | } | |
1283 | return (0); | |
fa4b55a1 SC |
1284 | } |
1285 | ||
1286 | /* Clear the hmss notion of what the break points are */ | |
1287 | static int | |
ec25d19b SC |
1288 | hms_clear_breakpoints () |
1289 | { | |
fa4b55a1 | 1290 | |
ec25d19b SC |
1291 | if (is_open) |
1292 | { | |
1293 | hms_write_cr ("b -"); | |
1294 | expect_prompt (); | |
1295 | } | |
fa4b55a1 | 1296 | num_brkpts = 0; |
fa4b55a1 SC |
1297 | } |
1298 | static void | |
ec25d19b SC |
1299 | hms_mourn () |
1300 | { | |
1301 | hms_clear_breakpoints (); | |
fa4b55a1 | 1302 | generic_mourn_inferior (); |
fa4b55a1 SC |
1303 | } |
1304 | ||
fa4b55a1 | 1305 | /* Put a command string, in args, out to the hms. The hms is assumed to |
ae0ea72e | 1306 | be in raw mode, all writing/reading done through desc. |
fa4b55a1 SC |
1307 | Ouput from the hms is placed on the users terminal until the |
1308 | prompt from the hms is seen. | |
1309 | FIXME: Can't handle commands that take input. */ | |
1310 | ||
1311 | void | |
1312 | hms_com (args, fromtty) | |
ec25d19b SC |
1313 | char *args; |
1314 | int fromtty; | |
fa4b55a1 | 1315 | { |
ec25d19b SC |
1316 | check_open (); |
1317 | ||
1318 | if (!args) | |
1319 | return; | |
1320 | ||
fa4b55a1 SC |
1321 | /* Clear all input so only command relative output is displayed */ |
1322 | ||
ec25d19b SC |
1323 | hms_write_cr (args); |
1324 | hms_write ("\030", 1); | |
1325 | expect_prompt (); | |
fa4b55a1 SC |
1326 | } |
1327 | ||
1328 | /* Define the target subroutine names */ | |
1329 | ||
ec25d19b SC |
1330 | struct target_ops hms_ops = |
1331 | { | |
1332 | "hms", "Remote HMS monitor", | |
1333 | "Use the H8 evaluation board running the HMS monitor connected\n\ | |
fa4b55a1 SC |
1334 | by a serial line.", |
1335 | ||
ec25d19b SC |
1336 | hms_open, hms_close, |
1337 | 0, hms_detach, hms_resume, hms_wait, /* attach */ | |
1338 | hms_fetch_register, hms_store_register, | |
1339 | hms_prepare_to_store, | |
1340 | hms_xfer_inferior_memory, | |
1341 | hms_files_info, | |
1342 | hms_insert_breakpoint, hms_remove_breakpoint, /* Breakpoints */ | |
1343 | 0, 0, 0, 0, 0, /* Terminal handling */ | |
1344 | hms_kill, /* FIXME, kill */ | |
1345 | hms_load, | |
1346 | 0, /* lookup_symbol */ | |
1347 | hms_create_inferior, /* create_inferior */ | |
1348 | hms_mourn, /* mourn_inferior FIXME */ | |
1349 | 0, /* can_run */ | |
1350 | 0, /* notice_signals */ | |
1351 | process_stratum, 0, /* next */ | |
1352 | 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */ | |
1353 | 0, 0, /* Section pointers */ | |
1354 | OPS_MAGIC, /* Always the last thing */ | |
fa4b55a1 SC |
1355 | }; |
1356 | ||
ec25d19b | 1357 | hms_quiet () |
fa4b55a1 | 1358 | { |
ec25d19b SC |
1359 | quiet = !quiet; |
1360 | if (quiet) | |
1361 | printf_filtered ("Snoop disabled\n"); | |
1362 | else | |
1363 | printf_filtered ("Snoop enabled\n"); | |
ae0ea72e | 1364 | |
fa4b55a1 SC |
1365 | } |
1366 | ||
ec25d19b SC |
1367 | hms_device (s) |
1368 | char *s; | |
fa4b55a1 | 1369 | { |
ec25d19b SC |
1370 | if (s) |
1371 | { | |
1372 | dev_name = get_word (&s); | |
1373 | } | |
fa4b55a1 SC |
1374 | } |
1375 | ||
ec25d19b SC |
1376 | static |
1377 | hms_speed (s) | |
1378 | char *s; | |
fa4b55a1 | 1379 | { |
ec25d19b SC |
1380 | check_open (); |
1381 | ||
1382 | if (s) | |
1383 | { | |
1384 | char buffer[100]; | |
1385 | int newrate = atoi (s); | |
1386 | int which = 0; | |
1387 | ||
1388 | if (!serial_setbaudrate (newrate)) | |
1389 | error ("Can't use %d baud\n", newrate); | |
1390 | ||
1391 | printf_filtered ("Checking target is in sync\n"); | |
1392 | ||
1393 | get_baudrate_right (); | |
1394 | baudrate = newrate; | |
1395 | printf_filtered ("Sending commands to set target to %d\n", | |
1396 | baudrate); | |
1397 | ||
1398 | sprintf (buffer, "tm %d. N 8 1", baudrate); | |
1399 | hms_write_cr (buffer); | |
1400 | } | |
fa4b55a1 SC |
1401 | } |
1402 | ||
1403 | /***********************************************************************/ | |
1404 | ||
1405 | void | |
1406 | _initialize_remote_hms () | |
1407 | { | |
1408 | add_target (&hms_ops); | |
ec25d19b | 1409 | |
fa4b55a1 | 1410 | add_com ("hms <command>", class_obscure, hms_com, |
ec25d19b | 1411 | "Send a command to the HMS monitor."); |
fa4b55a1 SC |
1412 | add_com ("snoop", class_obscure, hms_quiet, |
1413 | "Show what commands are going to the monitor"); | |
ae0ea72e | 1414 | |
fa4b55a1 SC |
1415 | add_com ("device", class_obscure, hms_device, |
1416 | "Set the terminal line for HMS communications"); | |
1417 | ||
1418 | add_com ("speed", class_obscure, hms_speed, | |
1419 | "Set the terminal line speed for HMS communications"); | |
ec25d19b | 1420 | |
3ec5a74b | 1421 | dev_name = NULL; |
fa4b55a1 | 1422 | } |