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" | |
a493d9a6 | 35 | #include "serial.h" |
fa4b55a1 SC |
36 | |
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; | |
50 | ||
1f46923f SC |
51 | static int quiet = 1; |
52 | ||
a493d9a6 SC |
53 | |
54 | serial_t desc; | |
55 | ||
1f46923f SC |
56 | /***********************************************************************/ |
57 | /* Caching stuff stolen from remote-nindy.c */ | |
58 | ||
59 | /* The data cache records all the data read from the remote machine | |
60 | since the last time it stopped. | |
61 | ||
62 | Each cache block holds LINE_SIZE bytes of data | |
63 | starting at a multiple-of-LINE_SIZE address. */ | |
64 | ||
1f46923f | 65 | #define LINE_SIZE_POWER 4 |
ec25d19b SC |
66 | #define LINE_SIZE (1<<LINE_SIZE_POWER) /* eg 1<<3 == 8 */ |
67 | #define LINE_SIZE_MASK ((LINE_SIZE-1)) /* eg 7*2+1= 111*/ | |
1f46923f SC |
68 | #define DCACHE_SIZE 64 /* Number of cache blocks */ |
69 | #define XFORM(x) ((x&LINE_SIZE_MASK)>>2) | |
ec25d19b SC |
70 | struct dcache_block |
71 | { | |
72 | struct dcache_block *next, *last; | |
73 | unsigned int addr; /* Address for which data is recorded. */ | |
74 | int data[LINE_SIZE / sizeof (int)]; | |
75 | }; | |
1f46923f SC |
76 | |
77 | struct dcache_block dcache_free, dcache_valid; | |
78 | ||
ec25d19b | 79 | /* Free all the data cache blocks, thus discarding all cached data. */ |
1f46923f SC |
80 | static |
81 | void | |
82 | dcache_flush () | |
83 | { | |
84 | register struct dcache_block *db; | |
85 | ||
86 | while ((db = dcache_valid.next) != &dcache_valid) | |
87 | { | |
88 | remque (db); | |
89 | insque (db, &dcache_free); | |
90 | } | |
91 | } | |
92 | ||
93 | /* | |
94 | * If addr is present in the dcache, return the address of the block | |
95 | * containing it. | |
96 | */ | |
97 | static | |
98 | struct dcache_block * | |
99 | dcache_hit (addr) | |
100 | unsigned int addr; | |
101 | { | |
102 | register struct dcache_block *db; | |
103 | ||
104 | if (addr & 3) | |
105 | abort (); | |
106 | ||
107 | /* Search all cache blocks for one that is at this address. */ | |
108 | db = dcache_valid.next; | |
109 | while (db != &dcache_valid) | |
110 | { | |
ec25d19b | 111 | if ((addr & ~LINE_SIZE_MASK) == db->addr) |
1f46923f SC |
112 | return db; |
113 | db = db->next; | |
114 | } | |
115 | return NULL; | |
116 | } | |
117 | ||
118 | /* Return the int data at address ADDR in dcache block DC. */ | |
119 | static | |
120 | int | |
121 | dcache_value (db, addr) | |
122 | struct dcache_block *db; | |
123 | unsigned int addr; | |
124 | { | |
125 | if (addr & 3) | |
126 | abort (); | |
ec25d19b | 127 | return (db->data[XFORM (addr)]); |
1f46923f SC |
128 | } |
129 | ||
130 | /* Get a free cache block, put or keep it on the valid list, | |
131 | and return its address. The caller should store into the block | |
132 | the address and data that it describes, then remque it from the | |
133 | free list and insert it into the valid list. This procedure | |
134 | prevents errors from creeping in if a ninMemGet is interrupted | |
135 | (which used to put garbage blocks in the valid list...). */ | |
136 | static | |
137 | struct dcache_block * | |
138 | dcache_alloc () | |
139 | { | |
140 | register struct dcache_block *db; | |
141 | ||
142 | if ((db = dcache_free.next) == &dcache_free) | |
143 | { | |
144 | /* If we can't get one from the free list, take last valid and put | |
145 | it on the free list. */ | |
146 | db = dcache_valid.last; | |
147 | remque (db); | |
148 | insque (db, &dcache_free); | |
149 | } | |
150 | ||
151 | remque (db); | |
152 | insque (db, &dcache_valid); | |
153 | return (db); | |
154 | } | |
155 | ||
156 | /* Return the contents of the word at address ADDR in the remote machine, | |
157 | using the data cache. */ | |
158 | static | |
159 | int | |
160 | dcache_fetch (addr) | |
161 | CORE_ADDR addr; | |
162 | { | |
163 | register struct dcache_block *db; | |
164 | ||
165 | db = dcache_hit (addr); | |
166 | if (db == 0) | |
167 | { | |
168 | db = dcache_alloc (); | |
169 | immediate_quit++; | |
ec25d19b | 170 | hms_read_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE); |
1f46923f SC |
171 | immediate_quit--; |
172 | db->addr = addr & ~LINE_SIZE_MASK; | |
ec25d19b | 173 | remque (db); /* Off the free list */ |
1f46923f SC |
174 | insque (db, &dcache_valid); /* On the valid list */ |
175 | } | |
176 | return (dcache_value (db, addr)); | |
177 | } | |
178 | ||
179 | /* Write the word at ADDR both in the data cache and in the remote machine. */ | |
180 | static void | |
181 | dcache_poke (addr, data) | |
182 | CORE_ADDR addr; | |
183 | int data; | |
184 | { | |
185 | register struct dcache_block *db; | |
186 | ||
187 | /* First make sure the word is IN the cache. DB is its cache block. */ | |
188 | db = dcache_hit (addr); | |
189 | if (db == 0) | |
ec25d19b SC |
190 | { |
191 | db = dcache_alloc (); | |
192 | immediate_quit++; | |
193 | hms_write_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE); | |
194 | immediate_quit--; | |
195 | db->addr = addr & ~LINE_SIZE_MASK; | |
196 | remque (db); /* Off the free list */ | |
197 | insque (db, &dcache_valid); /* On the valid list */ | |
198 | } | |
1f46923f SC |
199 | |
200 | /* Modify the word in the cache. */ | |
ec25d19b | 201 | db->data[XFORM (addr)] = data; |
1f46923f SC |
202 | |
203 | /* Send the changed word. */ | |
204 | immediate_quit++; | |
ec25d19b | 205 | hms_write_inferior_memory (addr, (unsigned char *) &data, 4); |
1f46923f SC |
206 | immediate_quit--; |
207 | } | |
208 | ||
209 | /* The cache itself. */ | |
210 | struct dcache_block the_cache[DCACHE_SIZE]; | |
211 | ||
212 | /* Initialize the data cache. */ | |
213 | static void | |
214 | dcache_init () | |
215 | { | |
216 | register i; | |
217 | register struct dcache_block *db; | |
218 | ||
219 | db = the_cache; | |
220 | dcache_free.next = dcache_free.last = &dcache_free; | |
221 | dcache_valid.next = dcache_valid.last = &dcache_valid; | |
ec25d19b | 222 | for (i = 0; i < DCACHE_SIZE; i++, db++) |
1f46923f SC |
223 | insque (db, &dcache_free); |
224 | } | |
fa4b55a1 | 225 | |
1f46923f SC |
226 | /*********************************************************************** |
227 | * I/O stuff stolen from remote-eb.c | |
228 | ***********************************************************************/ | |
229 | ||
230 | static int timeout = 2; | |
fa4b55a1 | 231 | |
b52373a2 | 232 | static const char *dev_name; |
1f46923f | 233 | |
fa4b55a1 SC |
234 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that |
235 | hms_open knows that we don't have a file open when the program | |
236 | starts. */ | |
fa4b55a1 | 237 | |
ae0ea72e | 238 | int is_open = 0; |
a493d9a6 | 239 | int |
ec25d19b | 240 | check_open () |
fa4b55a1 | 241 | { |
ae0ea72e | 242 | if (!is_open) |
ec25d19b SC |
243 | { |
244 | error ("remote device not open"); | |
245 | } | |
fa4b55a1 SC |
246 | } |
247 | ||
ae0ea72e SC |
248 | #define ON 1 |
249 | #define OFF 0 | |
1f46923f SC |
250 | |
251 | /* Read a character from the remote system, doing all the fancy | |
252 | timeout stuff. */ | |
253 | static int | |
254 | readchar () | |
fa4b55a1 | 255 | { |
ae0ea72e | 256 | int buf; |
ec25d19b | 257 | |
a493d9a6 | 258 | buf = SERIAL_READCHAR (desc, timeout); |
1f46923f | 259 | |
a493d9a6 | 260 | if (buf == SERIAL_TIMEOUT) |
ec25d19b | 261 | error ("Timeout reading from remote system."); |
1f46923f SC |
262 | |
263 | if (!quiet) | |
ec25d19b SC |
264 | printf ("%c", buf); |
265 | ||
1f46923f | 266 | return buf & 0x7f; |
fa4b55a1 SC |
267 | } |
268 | ||
fa4b55a1 | 269 | static int |
1f46923f | 270 | readchar_nofail () |
fa4b55a1 | 271 | { |
ae0ea72e | 272 | int buf; |
ec25d19b | 273 | |
a493d9a6 SC |
274 | buf = SERIAL_READCHAR (desc, timeout); |
275 | if (buf == SERIAL_TIMEOUT) | |
ec25d19b | 276 | buf = 0; |
ae0ea72e | 277 | if (!quiet) |
ec25d19b SC |
278 | printf ("%c", buf); |
279 | ||
fa4b55a1 | 280 | return buf & 0x7f; |
ae0ea72e | 281 | |
fa4b55a1 SC |
282 | } |
283 | ||
ec25d19b | 284 | /* Keep discarding input from the remote system, until STRING is found. |
fa4b55a1 SC |
285 | Let the user break out immediately. */ |
286 | static void | |
287 | expect (string) | |
288 | char *string; | |
289 | { | |
290 | char *p = string; | |
291 | ||
fa4b55a1 SC |
292 | immediate_quit = 1; |
293 | while (1) | |
294 | { | |
ec25d19b | 295 | if (readchar () == *p) |
fa4b55a1 SC |
296 | { |
297 | p++; | |
298 | if (*p == '\0') | |
299 | { | |
300 | immediate_quit = 0; | |
301 | return; | |
302 | } | |
303 | } | |
304 | else | |
305 | p = string; | |
306 | } | |
307 | } | |
308 | ||
309 | /* Keep discarding input until we see the hms prompt. | |
310 | ||
311 | The convention for dealing with the prompt is that you | |
312 | o give your command | |
313 | o *then* wait for the prompt. | |
314 | ||
315 | Thus the last thing that a procedure does with the serial line | |
316 | will be an expect_prompt(). Exception: hms_resume does not | |
317 | wait for the prompt, because the terminal is being handed over | |
318 | to the inferior. However, the next thing which happens after that | |
319 | is a hms_wait which does wait for the prompt. | |
320 | Note that this includes abnormal exit, e.g. error(). This is | |
321 | necessary to prevent getting into states from which we can't | |
322 | recover. */ | |
323 | static void | |
324 | expect_prompt () | |
325 | { | |
fa4b55a1 SC |
326 | expect ("HMS>"); |
327 | } | |
328 | ||
329 | /* Get a hex digit from the remote system & return its value. | |
330 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ | |
331 | static int | |
332 | get_hex_digit (ignore_space) | |
333 | int ignore_space; | |
334 | { | |
335 | int ch; | |
ec25d19b | 336 | |
fa4b55a1 SC |
337 | while (1) |
338 | { | |
339 | ch = readchar (); | |
340 | if (ch >= '0' && ch <= '9') | |
341 | return ch - '0'; | |
342 | else if (ch >= 'A' && ch <= 'F') | |
343 | return ch - 'A' + 10; | |
344 | else if (ch >= 'a' && ch <= 'f') | |
345 | return ch - 'a' + 10; | |
346 | else if (ch == ' ' && ignore_space) | |
347 | ; | |
348 | else | |
349 | { | |
350 | expect_prompt (); | |
351 | error ("Invalid hex digit from remote system."); | |
352 | } | |
353 | } | |
354 | } | |
355 | ||
356 | /* Get a byte from hms_desc and put it in *BYT. Accept any number | |
357 | leading spaces. */ | |
358 | static void | |
359 | get_hex_byte (byt) | |
360 | char *byt; | |
361 | { | |
362 | int val; | |
363 | ||
364 | val = get_hex_digit (1) << 4; | |
365 | val |= get_hex_digit (0); | |
366 | *byt = val; | |
367 | } | |
368 | ||
369 | /* Read a 32-bit hex word from the hms, preceded by a space */ | |
ec25d19b SC |
370 | static long |
371 | get_hex_word () | |
fa4b55a1 SC |
372 | { |
373 | long val; | |
374 | int j; | |
ec25d19b | 375 | |
fa4b55a1 SC |
376 | val = 0; |
377 | for (j = 0; j < 8; j++) | |
ec25d19b | 378 | val = (val << 4) + get_hex_digit (j == 0); |
fa4b55a1 SC |
379 | return val; |
380 | } | |
fa4b55a1 | 381 | |
ec25d19b | 382 | /* Called when SIGALRM signal sent due to alarm() timeout. */ |
fa4b55a1 SC |
383 | |
384 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
385 | NEED_ARTIFICIAL_TRAP calls to hms_wait should just return | |
386 | SIGTRAP without actually waiting for anything. */ | |
387 | ||
388 | static int need_artificial_trap = 0; | |
389 | ||
390 | void | |
ec25d19b SC |
391 | hms_kill (arg, from_tty) |
392 | char *arg; | |
393 | int from_tty; | |
fa4b55a1 | 394 | { |
fa4b55a1 | 395 | |
fa4b55a1 | 396 | } |
1f46923f | 397 | |
fa4b55a1 | 398 | /* |
ec25d19b | 399 | * Download a file specified in 'args', to the hms. |
fa4b55a1 SC |
400 | */ |
401 | static void | |
ec25d19b SC |
402 | hms_load (args, fromtty) |
403 | char *args; | |
404 | int fromtty; | |
fa4b55a1 | 405 | { |
ec25d19b | 406 | bfd *abfd; |
fa4b55a1 | 407 | asection *s; |
ec25d19b SC |
408 | int n; |
409 | char buffer[1024]; | |
ae0ea72e | 410 | |
ec25d19b | 411 | check_open (); |
1f46923f | 412 | |
ec25d19b SC |
413 | dcache_flush (); |
414 | inferior_pid = 0; | |
0685d95f | 415 | abfd = bfd_openr (args, gnutarget); |
ec25d19b SC |
416 | if (!abfd) |
417 | { | |
418 | printf_filtered ("Unable to open file %s\n", args); | |
419 | return; | |
420 | } | |
fa4b55a1 | 421 | |
ec25d19b SC |
422 | if (bfd_check_format (abfd, bfd_object) == 0) |
423 | { | |
424 | printf_filtered ("File is not an object file\n"); | |
425 | return; | |
426 | } | |
fa4b55a1 SC |
427 | |
428 | s = abfd->sections; | |
ec25d19b | 429 | while (s != (asection *) NULL) |
fa4b55a1 | 430 | { |
ec25d19b SC |
431 | if (s->flags & SEC_LOAD) |
432 | { | |
433 | int i; | |
fa4b55a1 | 434 | |
ae0ea72e | 435 | #define DELTA 1024 |
ec25d19b SC |
436 | char *buffer = xmalloc (DELTA); |
437 | ||
438 | printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma, s->vma + s->_raw_size); | |
439 | for (i = 0; i < s->_raw_size; i += DELTA) | |
440 | { | |
441 | int delta = DELTA; | |
442 | ||
443 | if (delta > s->_raw_size - i) | |
444 | delta = s->_raw_size - i; | |
445 | ||
446 | bfd_get_section_contents (abfd, s, buffer, i, delta); | |
447 | hms_write_inferior_memory (s->vma + i, buffer, delta); | |
448 | printf_filtered ("*"); | |
449 | fflush (stdout); | |
450 | } | |
451 | printf_filtered ("\n"); | |
452 | free (buffer); | |
453 | } | |
454 | s = s->next; | |
fa4b55a1 | 455 | } |
ec25d19b SC |
456 | sprintf (buffer, "r PC=%x", abfd->start_address); |
457 | hms_write_cr (buffer); | |
458 | expect_prompt (); | |
fa4b55a1 SC |
459 | } |
460 | ||
461 | /* This is called not only when we first attach, but also when the | |
462 | user types "run" after having attached. */ | |
463 | void | |
464 | hms_create_inferior (execfile, args, env) | |
465 | char *execfile; | |
466 | char *args; | |
467 | char **env; | |
468 | { | |
469 | int entry_pt; | |
ec25d19b | 470 | char buffer[100]; |
fa4b55a1 SC |
471 | |
472 | if (args && *args) | |
ec25d19b | 473 | error ("Can't pass arguments to remote hms process."); |
fa4b55a1 SC |
474 | |
475 | if (execfile == 0 || exec_bfd == 0) | |
ec25d19b | 476 | error ("No exec file specified"); |
fa4b55a1 SC |
477 | |
478 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
ec25d19b | 479 | check_open (); |
1f46923f | 480 | |
ec25d19b SC |
481 | hms_kill (NULL, NULL); |
482 | hms_clear_breakpoints (); | |
ae0ea72e | 483 | init_wait_for_inferior (); |
ec25d19b SC |
484 | hms_write_cr (""); |
485 | expect_prompt (); | |
fa4b55a1 | 486 | |
ae0ea72e | 487 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
ec25d19b | 488 | proceed (entry_pt, -1, 0); |
fa4b55a1 SC |
489 | } |
490 | ||
fa4b55a1 SC |
491 | /* Open a connection to a remote debugger. |
492 | NAME is the filename used for communication, then a space, | |
493 | then the baud rate. | |
494 | */ | |
495 | ||
496 | static char * | |
ec25d19b SC |
497 | find_end_of_word (s) |
498 | char *s; | |
fa4b55a1 | 499 | { |
ec25d19b SC |
500 | while (*s && !isspace (*s)) |
501 | s++; | |
fa4b55a1 SC |
502 | return s; |
503 | } | |
504 | ||
ec25d19b SC |
505 | static char * |
506 | get_word (p) | |
507 | char **p; | |
fa4b55a1 SC |
508 | { |
509 | char *s = *p; | |
ec25d19b | 510 | char *word; |
fa4b55a1 SC |
511 | char *copy; |
512 | size_t len; | |
513 | ||
ec25d19b SC |
514 | while (isspace (*s)) |
515 | s++; | |
fa4b55a1 SC |
516 | |
517 | word = s; | |
518 | ||
519 | len = 0; | |
520 | ||
ec25d19b SC |
521 | while (*s && !isspace (*s)) |
522 | { | |
523 | s++; | |
524 | len++; | |
525 | ||
526 | } | |
527 | copy = xmalloc (len + 1); | |
528 | memcpy (copy, word, len); | |
fa4b55a1 SC |
529 | copy[len] = 0; |
530 | *p = s; | |
531 | return copy; | |
532 | } | |
533 | ||
534 | static int baudrate = 9600; | |
1f46923f SC |
535 | |
536 | static int | |
ec25d19b | 537 | is_baudrate_right () |
1f46923f | 538 | { |
ae0ea72e | 539 | int ok; |
ec25d19b | 540 | |
1f46923f | 541 | /* Put this port into NORMAL mode, send the 'normal' character */ |
ae0ea72e | 542 | |
ec25d19b SC |
543 | hms_write ("\001", 1); /* Control A */ |
544 | hms_write ("\r", 1); /* Cr */ | |
ae0ea72e | 545 | |
ec25d19b SC |
546 | while (1) |
547 | { | |
a493d9a6 | 548 | ok = SERIAL_READCHAR (desc, timeout); |
ec25d19b SC |
549 | if (ok < 0) |
550 | break; | |
551 | } | |
ae0ea72e | 552 | |
ec25d19b SC |
553 | hms_write ("r", 1); |
554 | ||
555 | if (readchar_nofail () == 'r') | |
556 | return 1; | |
1f46923f SC |
557 | |
558 | /* Not the right baudrate, or the board's not on */ | |
559 | return 0; | |
1f46923f SC |
560 | } |
561 | static void | |
ec25d19b | 562 | set_rate () |
1f46923f | 563 | { |
a493d9a6 | 564 | if (!SERIAL_SETBAUDRATE (desc, baudrate)) |
ec25d19b | 565 | error ("Can't set baudrate"); |
1f46923f SC |
566 | } |
567 | ||
1f46923f | 568 | |
fa4b55a1 SC |
569 | static void |
570 | hms_open (name, from_tty) | |
571 | char *name; | |
572 | int from_tty; | |
573 | { | |
fa4b55a1 SC |
574 | unsigned int prl; |
575 | char *p; | |
ec25d19b SC |
576 | |
577 | if (name == 0) | |
578 | { | |
579 | name = ""; | |
580 | } | |
581 | if (is_open) | |
836e343b | 582 | hms_close (0); |
a493d9a6 SC |
583 | dev_name = strdup (name); |
584 | ||
585 | if (!(desc = SERIAL_OPEN (dev_name))) | |
ec25d19b | 586 | perror_with_name ((char *) dev_name); |
a493d9a6 SC |
587 | |
588 | SERIAL_RAW (desc); | |
ae0ea72e | 589 | is_open = 1; |
fa4b55a1 | 590 | |
ec25d19b SC |
591 | dcache_init (); |
592 | ||
fa4b55a1 | 593 | /* Hello? Are you there? */ |
a493d9a6 | 594 | SERIAL_WRITE (desc, "\r", 1); |
fa4b55a1 SC |
595 | expect_prompt (); |
596 | ||
597 | /* Clear any break points */ | |
ec25d19b | 598 | hms_clear_breakpoints (); |
fa4b55a1 | 599 | |
ec25d19b | 600 | printf_filtered ("Connected to remote H8/300 HMS system.\n"); |
fa4b55a1 SC |
601 | } |
602 | ||
603 | /* Close out all files and local state before this target loses control. */ | |
604 | ||
605 | static void | |
606 | hms_close (quitting) | |
607 | int quitting; | |
608 | { | |
fa4b55a1 | 609 | /* Clear any break points */ |
ec25d19b | 610 | hms_clear_breakpoints (); |
ec25d19b | 611 | sleep (1); /* Let any output make it all the way back */ |
a493d9a6 SC |
612 | if (is_open) |
613 | { | |
614 | SERIAL_WRITE (desc, "R\r", 2); | |
615 | SERIAL_CLOSE (desc); | |
616 | } | |
ae0ea72e | 617 | is_open = 0; |
fa4b55a1 SC |
618 | } |
619 | ||
fa4b55a1 SC |
620 | /* Terminate the open connection to the remote debugger. |
621 | Use this when you want to detach and do something else | |
622 | with your gdb. */ | |
623 | void | |
ec25d19b | 624 | hms_detach (args, from_tty) |
fa4b55a1 SC |
625 | char *args; |
626 | int from_tty; | |
627 | { | |
ae0ea72e | 628 | if (is_open) |
ec25d19b SC |
629 | { |
630 | hms_clear_breakpoints (); | |
631 | } | |
632 | ||
633 | pop_target (); /* calls hms_close to do the real work */ | |
fa4b55a1 SC |
634 | if (from_tty) |
635 | printf_filtered ("Ending remote %s debugging\n", target_shortname); | |
fa4b55a1 | 636 | } |
ec25d19b | 637 | |
fa4b55a1 SC |
638 | /* Tell the remote machine to resume. */ |
639 | ||
640 | void | |
25286543 SG |
641 | hms_resume (pid, step, sig) |
642 | int pid, step, sig; | |
fa4b55a1 | 643 | { |
ec25d19b SC |
644 | dcache_flush (); |
645 | ||
646 | if (step) | |
647 | { | |
648 | hms_write_cr ("s"); | |
649 | expect ("Step>"); | |
650 | ||
651 | /* Force the next hms_wait to return a trap. Not doing anything | |
fa4b55a1 SC |
652 | about I/O from the target means that the user has to type |
653 | "continue" to see any. FIXME, this should be fixed. */ | |
ec25d19b SC |
654 | need_artificial_trap = 1; |
655 | } | |
fa4b55a1 | 656 | else |
ec25d19b SC |
657 | { |
658 | hms_write_cr ("g"); | |
659 | expect ("g"); | |
660 | } | |
fa4b55a1 SC |
661 | } |
662 | ||
663 | /* Wait until the remote machine stops, then return, | |
664 | storing status in STATUS just as `wait' would. */ | |
665 | ||
666 | int | |
667 | hms_wait (status) | |
668 | WAITTYPE *status; | |
669 | { | |
ec25d19b | 670 | /* Strings to look for. '?' means match any single character. |
fa4b55a1 SC |
671 | Note that with the algorithm we use, the initial character |
672 | of the string cannot recur in the string, or we will not | |
673 | find some cases of the string in the input. */ | |
ec25d19b | 674 | |
96743d3c | 675 | static char bpt[] = "At breakpoint:"; |
ec25d19b | 676 | |
fa4b55a1 SC |
677 | /* It would be tempting to look for "\n[__exit + 0x8]\n" |
678 | but that requires loading symbols with "yc i" and even if | |
679 | we did do that we don't know that the file has symbols. */ | |
680 | static char exitmsg[] = "HMS>"; | |
681 | char *bp = bpt; | |
682 | char *ep = exitmsg; | |
683 | ||
684 | /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */ | |
685 | char swallowed[50]; | |
ec25d19b | 686 | |
fa4b55a1 SC |
687 | /* Current position in swallowed. */ |
688 | char *swallowed_p = swallowed; | |
689 | ||
690 | int ch; | |
691 | int ch_handled; | |
692 | int old_timeout = timeout; | |
693 | int old_immediate_quit = immediate_quit; | |
1f46923f | 694 | int swallowed_cr = 0; |
ec25d19b | 695 | |
fa4b55a1 SC |
696 | WSETEXIT ((*status), 0); |
697 | ||
698 | if (need_artificial_trap != 0) | |
ec25d19b SC |
699 | { |
700 | WSETSTOP ((*status), SIGTRAP); | |
701 | need_artificial_trap--; | |
702 | return 0; | |
703 | } | |
fa4b55a1 | 704 | |
e93790f0 | 705 | timeout = -1; /* Don't time out -- user program is running. */ |
1f46923f | 706 | immediate_quit = 1; /* Helps ability to QUIT */ |
ec25d19b | 707 | while (1) |
96743d3c | 708 | { |
ec25d19b SC |
709 | QUIT; /* Let user quit and leave process running */ |
710 | ch_handled = 0; | |
711 | ch = readchar (); | |
712 | if (ch == *bp) | |
713 | { | |
714 | bp++; | |
715 | if (*bp == '\0') | |
716 | break; | |
717 | ch_handled = 1; | |
718 | ||
719 | *swallowed_p++ = ch; | |
720 | } | |
721 | else | |
722 | { | |
723 | bp = bpt; | |
724 | } | |
725 | if (ch == *ep || *ep == '?') | |
726 | { | |
727 | ep++; | |
728 | if (*ep == '\0') | |
729 | break; | |
730 | ||
731 | if (!ch_handled) | |
732 | *swallowed_p++ = ch; | |
733 | ch_handled = 1; | |
734 | } | |
735 | else | |
736 | { | |
737 | ep = exitmsg; | |
738 | } | |
739 | ||
740 | if (!ch_handled) | |
741 | { | |
742 | char *p; | |
743 | ||
744 | /* Print out any characters which have been swallowed. */ | |
745 | for (p = swallowed; p < swallowed_p; ++p) | |
746 | putc (*p, stdout); | |
747 | swallowed_p = swallowed; | |
748 | ||
749 | if ((ch != '\r' && ch != '\n') || swallowed_cr > 10) | |
750 | { | |
751 | putc (ch, stdout); | |
752 | swallowed_cr = 10; | |
753 | } | |
754 | swallowed_cr++; | |
755 | ||
756 | } | |
96743d3c | 757 | } |
ec25d19b | 758 | if (*bp == '\0') |
96743d3c | 759 | { |
ec25d19b SC |
760 | WSETSTOP ((*status), SIGTRAP); |
761 | expect_prompt (); | |
762 | } | |
763 | else | |
96743d3c | 764 | { |
ec25d19b | 765 | WSETEXIT ((*status), 0); |
96743d3c | 766 | } |
ec25d19b | 767 | |
fa4b55a1 SC |
768 | timeout = old_timeout; |
769 | immediate_quit = old_immediate_quit; | |
fa4b55a1 SC |
770 | return 0; |
771 | } | |
772 | ||
773 | /* Return the name of register number REGNO | |
774 | in the form input and output by hms. | |
775 | ||
776 | Returns a pointer to a static buffer containing the answer. */ | |
777 | static char * | |
778 | get_reg_name (regno) | |
779 | int regno; | |
780 | { | |
62b66d6d | 781 | static char *rn[] = REGISTER_NAMES; |
ec25d19b | 782 | |
fa4b55a1 | 783 | return rn[regno]; |
fa4b55a1 SC |
784 | } |
785 | ||
786 | /* Read the remote registers. */ | |
a493d9a6 | 787 | static int |
ec25d19b SC |
788 | gethex (length, start, ok) |
789 | unsigned int length; | |
790 | char *start; | |
791 | int *ok; | |
fa4b55a1 SC |
792 | { |
793 | int result = 0; | |
ec25d19b SC |
794 | |
795 | while (length--) | |
fa4b55a1 | 796 | { |
ec25d19b SC |
797 | result <<= 4; |
798 | if (*start >= 'a' && *start <= 'f') | |
799 | { | |
800 | result += *start - 'a' + 10; | |
801 | } | |
802 | else if (*start >= 'A' && *start <= 'F') | |
803 | { | |
804 | result += *start - 'A' + 10; | |
805 | } | |
806 | else if (*start >= '0' && *start <= '9') | |
807 | { | |
808 | result += *start - '0'; | |
809 | } | |
810 | else | |
811 | *ok = 0; | |
812 | start++; | |
813 | ||
fa4b55a1 | 814 | } |
fa4b55a1 SC |
815 | return result; |
816 | } | |
ec25d19b SC |
817 | static int |
818 | timed_read (buf, n, timeout) | |
819 | char *buf; | |
fa4b55a1 SC |
820 | |
821 | { | |
822 | int i; | |
823 | char c; | |
ec25d19b | 824 | |
fa4b55a1 | 825 | i = 0; |
ec25d19b SC |
826 | while (i < n) |
827 | { | |
828 | c = readchar (); | |
829 | ||
830 | if (c == 0) | |
831 | return i; | |
832 | buf[i] = c; | |
833 | i++; | |
834 | ||
835 | } | |
836 | return i; | |
fa4b55a1 | 837 | } |
ec25d19b SC |
838 | |
839 | hms_write (a, l) | |
840 | char *a; | |
fa4b55a1 SC |
841 | { |
842 | int i; | |
ec25d19b | 843 | |
a493d9a6 | 844 | SERIAL_WRITE (desc, a, l); |
ae0ea72e | 845 | |
96743d3c | 846 | if (!quiet) |
ec25d19b SC |
847 | for (i = 0; i < l; i++) |
848 | { | |
849 | printf ("%c", a[i]); | |
850 | } | |
fa4b55a1 SC |
851 | } |
852 | ||
ec25d19b SC |
853 | hms_write_cr (s) |
854 | char *s; | |
fa4b55a1 | 855 | { |
ec25d19b SC |
856 | hms_write (s, strlen (s)); |
857 | hms_write ("\r", 1); | |
1f46923f SC |
858 | } |
859 | ||
860 | static void | |
ae0ea72e | 861 | hms_fetch_register (dummy) |
ec25d19b | 862 | int dummy; |
fa4b55a1 SC |
863 | { |
864 | #define REGREPLY_SIZE 79 | |
ec25d19b | 865 | char linebuf[REGREPLY_SIZE + 1]; |
fa4b55a1 | 866 | int i; |
ec25d19b | 867 | int s; |
fa4b55a1 | 868 | int gottok; |
ec25d19b | 869 | |
1f46923f SC |
870 | REGISTER_TYPE reg[NUM_REGS]; |
871 | int foo[8]; | |
ec25d19b SC |
872 | |
873 | check_open (); | |
874 | ||
875 | do | |
fa4b55a1 | 876 | { |
ec25d19b SC |
877 | |
878 | hms_write_cr ("r"); | |
879 | s = timed_read (linebuf, REGREPLY_SIZE, 1); | |
880 | ||
881 | linebuf[REGREPLY_SIZE] = 0; | |
882 | gottok = 0; | |
883 | if (linebuf[0] == 'r' && | |
884 | linebuf[3] == 'P' && | |
885 | linebuf[4] == 'C' && | |
886 | linebuf[5] == '=' && | |
887 | linebuf[75] == 'H' && | |
888 | linebuf[76] == 'M' && | |
889 | linebuf[77] == 'S') | |
890 | { | |
891 | /* | |
fa4b55a1 SC |
892 | PC=XXXX CCR=XX:XXXXXXXX R0-R7= XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX |
893 | 5436789012345678901234567890123456789012345678901234567890123456789012 | |
ec25d19b | 894 | 0 1 2 3 4 5 6 |
fa4b55a1 | 895 | */ |
ec25d19b SC |
896 | gottok = 1; |
897 | ||
898 | reg[PC_REGNUM] = gethex (4, linebuf + 6, &gottok); | |
899 | reg[CCR_REGNUM] = gethex (2, linebuf + 15, &gottok); | |
900 | for (i = 0; i < 8; i++) | |
901 | { | |
902 | reg[i] = gethex (4, linebuf + 34 + 5 * i, &gottok); | |
903 | } | |
904 | } | |
fa4b55a1 | 905 | } |
fa4b55a1 | 906 | while (!gottok); |
ec25d19b SC |
907 | for (i = 0; i < NUM_REGS; i++) |
908 | { | |
909 | char swapped[2]; | |
fa4b55a1 | 910 | |
ec25d19b SC |
911 | swapped[1] = reg[i]; |
912 | swapped[0] = (reg[i]) >> 8; | |
fa4b55a1 | 913 | |
ec25d19b SC |
914 | supply_register (i, swapped); |
915 | } | |
916 | } | |
fa4b55a1 SC |
917 | |
918 | /* Store register REGNO, or all if REGNO == -1. | |
919 | Return errno value. */ | |
ae0ea72e | 920 | static void |
fa4b55a1 SC |
921 | hms_store_register (regno) |
922 | int regno; | |
923 | { | |
ec25d19b | 924 | if (regno == -1) |
ae0ea72e | 925 | { |
ec25d19b SC |
926 | for (regno = 0; regno < NUM_REGS; regno++) |
927 | { | |
928 | hms_store_register (regno); | |
929 | } | |
ae0ea72e | 930 | } |
fa4b55a1 | 931 | else |
ec25d19b SC |
932 | { |
933 | char *name = get_reg_name (regno); | |
934 | char buffer[100]; | |
ae0ea72e | 935 | |
ec25d19b SC |
936 | sprintf (buffer, "r %s=%x", name, read_register (regno)); |
937 | hms_write_cr (buffer); | |
938 | expect_prompt (); | |
939 | } | |
940 | } | |
ae0ea72e | 941 | |
fa4b55a1 SC |
942 | /* Get ready to modify the registers array. On machines which store |
943 | individual registers, this doesn't need to do anything. On machines | |
944 | which store all the registers in one fell swoop, this makes sure | |
945 | that registers contains all the registers from the program being | |
946 | debugged. */ | |
947 | ||
948 | void | |
949 | hms_prepare_to_store () | |
950 | { | |
951 | /* Do nothing, since we can store individual regs */ | |
952 | } | |
953 | ||
ec25d19b SC |
954 | static CORE_ADDR |
955 | translate_addr (addr) | |
956 | CORE_ADDR addr; | |
fa4b55a1 SC |
957 | { |
958 | ||
ec25d19b | 959 | return (addr); |
fa4b55a1 SC |
960 | |
961 | } | |
962 | ||
963 | /* Read a word from remote address ADDR and return it. | |
964 | * This goes through the data cache. | |
965 | */ | |
966 | int | |
967 | hms_fetch_word (addr) | |
968 | CORE_ADDR addr; | |
969 | { | |
ec25d19b | 970 | return dcache_fetch (addr); |
fa4b55a1 SC |
971 | } |
972 | ||
973 | /* Write a word WORD into remote address ADDR. | |
974 | This goes through the data cache. */ | |
975 | ||
976 | void | |
977 | hms_store_word (addr, word) | |
978 | CORE_ADDR addr; | |
979 | int word; | |
980 | { | |
ec25d19b | 981 | dcache_poke (addr, word); |
fa4b55a1 SC |
982 | } |
983 | ||
984 | int | |
ec25d19b | 985 | hms_xfer_inferior_memory (memaddr, myaddr, len, write, target) |
fa4b55a1 SC |
986 | CORE_ADDR memaddr; |
987 | char *myaddr; | |
988 | int len; | |
989 | int write; | |
ec25d19b | 990 | struct target_ops *target; /* ignored */ |
fa4b55a1 SC |
991 | { |
992 | register int i; | |
ec25d19b | 993 | |
fa4b55a1 | 994 | /* Round starting address down to longword boundary. */ |
ec25d19b SC |
995 | register CORE_ADDR addr; |
996 | ||
fa4b55a1 SC |
997 | /* Round ending address up; get number of longwords that makes. */ |
998 | register int count; | |
ec25d19b | 999 | |
fa4b55a1 | 1000 | /* Allocate buffer of that many longwords. */ |
ec25d19b | 1001 | register int *buffer; |
fa4b55a1 SC |
1002 | |
1003 | memaddr &= 0xffff; | |
ec25d19b SC |
1004 | addr = memaddr & -sizeof (int); |
1005 | count = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); | |
fa4b55a1 | 1006 | |
ec25d19b | 1007 | buffer = (int *) alloca (count * sizeof (int)); |
1f46923f | 1008 | |
fa4b55a1 | 1009 | if (write) |
ec25d19b SC |
1010 | { |
1011 | /* Fill start and end extra bytes of buffer with existing memory data. */ | |
fa4b55a1 | 1012 | |
ec25d19b SC |
1013 | if (addr != memaddr || len < (int) sizeof (int)) |
1014 | { | |
1015 | /* Need part of initial word -- fetch it. */ | |
1016 | buffer[0] = hms_fetch_word (addr); | |
1017 | } | |
fa4b55a1 | 1018 | |
ec25d19b SC |
1019 | if (count > 1) /* FIXME, avoid if even boundary */ |
1020 | { | |
1021 | buffer[count - 1] | |
1022 | = hms_fetch_word (addr + (count - 1) * sizeof (int)); | |
1023 | } | |
fa4b55a1 | 1024 | |
ec25d19b | 1025 | /* Copy data to be written over corresponding part of buffer */ |
fa4b55a1 | 1026 | |
ec25d19b | 1027 | bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); |
fa4b55a1 | 1028 | |
ec25d19b | 1029 | /* Write the entire buffer. */ |
fa4b55a1 | 1030 | |
ec25d19b SC |
1031 | for (i = 0; i < count; i++, addr += sizeof (int)) |
1032 | { | |
1033 | errno = 0; | |
1034 | hms_store_word (addr, buffer[i]); | |
1035 | if (errno) | |
1036 | { | |
1037 | ||
1038 | return 0; | |
1039 | } | |
1040 | ||
1041 | } | |
fa4b55a1 | 1042 | } |
fa4b55a1 | 1043 | else |
fa4b55a1 | 1044 | { |
ec25d19b SC |
1045 | /* Read all the longwords */ |
1046 | for (i = 0; i < count; i++, addr += sizeof (int)) | |
1047 | { | |
1048 | errno = 0; | |
1049 | buffer[i] = hms_fetch_word (addr); | |
1050 | if (errno) | |
1051 | { | |
1052 | return 0; | |
1053 | } | |
1054 | QUIT; | |
1055 | } | |
fa4b55a1 | 1056 | |
ec25d19b SC |
1057 | /* Copy appropriate bytes out of the buffer. */ |
1058 | bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); | |
1059 | } | |
fa4b55a1 | 1060 | |
fa4b55a1 SC |
1061 | return len; |
1062 | } | |
1063 | ||
fa4b55a1 SC |
1064 | int |
1065 | hms_write_inferior_memory (memaddr, myaddr, len) | |
1066 | CORE_ADDR memaddr; | |
ae0ea72e | 1067 | unsigned char *myaddr; |
fa4b55a1 SC |
1068 | int len; |
1069 | { | |
ae0ea72e SC |
1070 | bfd_vma addr; |
1071 | int done; | |
ec25d19b SC |
1072 | int todo; |
1073 | ||
ae0ea72e | 1074 | done = 0; |
ec25d19b | 1075 | while (done < len) |
ae0ea72e | 1076 | { |
ec25d19b SC |
1077 | char buffer[20]; |
1078 | int thisgo; | |
1079 | int idx; | |
1080 | ||
1081 | thisgo = len - done; | |
1082 | if (thisgo > 20) | |
1083 | thisgo = 20; | |
ae0ea72e | 1084 | |
ec25d19b SC |
1085 | sprintf (buffer, "M.B %4x =", memaddr + done); |
1086 | hms_write (buffer, 10); | |
1087 | for (idx = 0; idx < thisgo; idx++) | |
1088 | { | |
1089 | char buf[20]; | |
1090 | ||
1091 | sprintf (buf, "%2x ", myaddr[idx + done]); | |
1092 | hms_write (buf, 3); | |
1093 | } | |
1094 | hms_write_cr (""); | |
1095 | expect_prompt (); | |
1096 | done += thisgo; | |
1097 | } | |
fa4b55a1 | 1098 | |
fa4b55a1 SC |
1099 | } |
1100 | ||
1101 | void | |
1102 | hms_files_info () | |
1103 | { | |
ec25d19b SC |
1104 | char *file = "nothing"; |
1105 | ||
1106 | if (exec_bfd) | |
1107 | file = bfd_get_filename (exec_bfd); | |
ae0ea72e | 1108 | |
ec25d19b | 1109 | if (exec_bfd) |
ae0ea72e | 1110 | #ifdef __GO32__ |
ec25d19b | 1111 | printf_filtered ("\tAttached to DOS asynctsr and running program %s\n", file); |
ae0ea72e | 1112 | #else |
5905161c | 1113 | printf_filtered ("\tAttached to %s at %d baud and running program %s\n", dev_name, baudrate, file); |
ae0ea72e | 1114 | #endif |
ec25d19b | 1115 | printf_filtered ("\ton an H8/300 processor.\n"); |
fa4b55a1 SC |
1116 | } |
1117 | ||
1118 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
ec25d19b SC |
1119 | to inferior's memory at MEMADDR. Returns errno value. |
1120 | * sb/sh instructions don't work on unaligned addresses, when TU=1. | |
fa4b55a1 SC |
1121 | */ |
1122 | ||
fa4b55a1 SC |
1123 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result |
1124 | at debugger address MYADDR. Returns errno value. */ | |
1125 | int | |
ec25d19b | 1126 | hms_read_inferior_memory (memaddr, myaddr, len) |
fa4b55a1 SC |
1127 | CORE_ADDR memaddr; |
1128 | char *myaddr; | |
1129 | int len; | |
1130 | { | |
1131 | /* Align to nearest low 16 bits */ | |
1132 | int i; | |
ec25d19b | 1133 | |
fa4b55a1 SC |
1134 | #if 0 |
1135 | CORE_ADDR start = memaddr & ~0xf; | |
ec25d19b SC |
1136 | CORE_ADDR end = ((memaddr + len + 16) & ~0xf) - 1; |
1137 | ||
fa4b55a1 SC |
1138 | #endif |
1139 | CORE_ADDR start = memaddr; | |
ec25d19b SC |
1140 | CORE_ADDR end = memaddr + len - 1; |
1141 | ||
1142 | int ok = 1; | |
1143 | ||
fa4b55a1 SC |
1144 | /* |
1145 | AAAA: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX '................' | |
1146 | 012345678901234567890123456789012345678901234567890123456789012345 | |
1147 | 0 1 2 3 4 5 6 | |
1148 | */ | |
1149 | char buffer[66]; | |
ec25d19b SC |
1150 | |
1151 | if (memaddr & 0xf) | |
1152 | abort (); | |
1153 | if (len != 16) | |
1154 | abort (); | |
1155 | ||
1156 | sprintf (buffer, "m %4x %4x", start & 0xffff, end & 0xffff); | |
1157 | hms_write_cr (buffer); | |
fa4b55a1 SC |
1158 | /* drop the echo and newline*/ |
1159 | for (i = 0; i < 13; i++) | |
ec25d19b | 1160 | readchar (); |
fa4b55a1 | 1161 | |
fa4b55a1 SC |
1162 | /* Grab the lines as they come out and fill the area */ |
1163 | /* Skip over cr */ | |
ec25d19b | 1164 | while (1) |
fa4b55a1 | 1165 | { |
ec25d19b SC |
1166 | int p; |
1167 | int i; | |
1168 | int addr; | |
1169 | size_t idx; | |
fa4b55a1 | 1170 | |
ec25d19b SC |
1171 | char byte[16]; |
1172 | ||
1173 | buffer[0] = readchar (); | |
1174 | if (buffer[0] == 'M') | |
1175 | break; | |
1176 | for (i = 1; i < 66; i++) | |
1177 | buffer[i] = readchar (); | |
1178 | ||
1179 | /* Now parse the line */ | |
1180 | ||
1181 | addr = gethex (4, buffer, &ok); | |
1182 | idx = 6; | |
1183 | for (p = 0; p < 16; p += 2) | |
1184 | { | |
1185 | byte[p] = gethex (2, buffer + idx, &ok); | |
1186 | byte[p + 1] = gethex (2, buffer + idx + 2, &ok); | |
1187 | idx += 5; | |
1188 | ||
1189 | } | |
1190 | ||
1191 | for (p = 0; p < 16; p++) | |
1192 | { | |
1193 | if (addr + p >= memaddr && | |
1194 | addr + p < memaddr + len) | |
1195 | { | |
1196 | myaddr[(addr + p) - memaddr] = byte[p]; | |
1197 | ||
1198 | } | |
1199 | ||
1200 | } | |
fa4b55a1 | 1201 | } |
a493d9a6 | 1202 | expect ("emory>"); |
ec25d19b SC |
1203 | hms_write_cr (" "); |
1204 | expect_prompt (); | |
fa4b55a1 | 1205 | return len; |
fa4b55a1 SC |
1206 | } |
1207 | ||
1208 | /* This routine is run as a hook, just before the main command loop is | |
1209 | entered. If gdb is configured for the H8, but has not had its | |
1210 | target specified yet, this will loop prompting the user to do so. | |
1211 | */ | |
1212 | ||
1213 | hms_before_main_loop () | |
1214 | { | |
1215 | char ttyname[100]; | |
1216 | char *p, *p2; | |
1217 | extern FILE *instream; | |
fa4b55a1 SC |
1218 | |
1219 | push_target (&hms_ops); | |
fa4b55a1 SC |
1220 | } |
1221 | ||
fa4b55a1 | 1222 | #define MAX_BREAKS 16 |
ec25d19b | 1223 | static int num_brkpts = 0; |
fa4b55a1 | 1224 | static int |
ec25d19b SC |
1225 | hms_insert_breakpoint (addr, save) |
1226 | CORE_ADDR addr; | |
1227 | char *save; /* Throw away, let hms save instructions */ | |
fa4b55a1 | 1228 | { |
ec25d19b SC |
1229 | check_open (); |
1230 | ||
1231 | if (num_brkpts < MAX_BREAKS) | |
1232 | { | |
1233 | char buffer[100]; | |
fa4b55a1 | 1234 | |
ec25d19b SC |
1235 | num_brkpts++; |
1236 | sprintf (buffer, "b %x", addr & 0xffff); | |
1237 | hms_write_cr (buffer); | |
1238 | expect_prompt (); | |
1239 | return (0); | |
1240 | } | |
1241 | else | |
1242 | { | |
1243 | fprintf_filtered (stderr, | |
1244 | "Too many break points, break point not installed\n"); | |
1245 | return (1); | |
1246 | } | |
fa4b55a1 SC |
1247 | |
1248 | } | |
1249 | static int | |
ec25d19b SC |
1250 | hms_remove_breakpoint (addr, save) |
1251 | CORE_ADDR addr; | |
1252 | char *save; /* Throw away, let hms save instructions */ | |
fa4b55a1 | 1253 | { |
ec25d19b SC |
1254 | if (num_brkpts > 0) |
1255 | { | |
1256 | char buffer[100]; | |
1257 | ||
1258 | num_brkpts--; | |
1259 | sprintf (buffer, "b - %x", addr & 0xffff); | |
1260 | hms_write_cr (buffer); | |
1261 | expect_prompt (); | |
1262 | ||
1263 | } | |
1264 | return (0); | |
fa4b55a1 SC |
1265 | } |
1266 | ||
1267 | /* Clear the hmss notion of what the break points are */ | |
1268 | static int | |
ec25d19b SC |
1269 | hms_clear_breakpoints () |
1270 | { | |
fa4b55a1 | 1271 | |
ec25d19b SC |
1272 | if (is_open) |
1273 | { | |
1274 | hms_write_cr ("b -"); | |
1275 | expect_prompt (); | |
1276 | } | |
fa4b55a1 | 1277 | num_brkpts = 0; |
fa4b55a1 SC |
1278 | } |
1279 | static void | |
ec25d19b SC |
1280 | hms_mourn () |
1281 | { | |
1282 | hms_clear_breakpoints (); | |
71607f9d | 1283 | unpush_target (&hms_ops); |
fa4b55a1 | 1284 | generic_mourn_inferior (); |
fa4b55a1 SC |
1285 | } |
1286 | ||
fa4b55a1 | 1287 | /* Put a command string, in args, out to the hms. The hms is assumed to |
ae0ea72e | 1288 | be in raw mode, all writing/reading done through desc. |
fa4b55a1 SC |
1289 | Ouput from the hms is placed on the users terminal until the |
1290 | prompt from the hms is seen. | |
1291 | FIXME: Can't handle commands that take input. */ | |
1292 | ||
1293 | void | |
1294 | hms_com (args, fromtty) | |
ec25d19b SC |
1295 | char *args; |
1296 | int fromtty; | |
fa4b55a1 | 1297 | { |
ec25d19b SC |
1298 | check_open (); |
1299 | ||
1300 | if (!args) | |
1301 | return; | |
1302 | ||
fa4b55a1 SC |
1303 | /* Clear all input so only command relative output is displayed */ |
1304 | ||
ec25d19b SC |
1305 | hms_write_cr (args); |
1306 | hms_write ("\030", 1); | |
1307 | expect_prompt (); | |
fa4b55a1 SC |
1308 | } |
1309 | ||
1310 | /* Define the target subroutine names */ | |
1311 | ||
ec25d19b SC |
1312 | struct target_ops hms_ops = |
1313 | { | |
1314 | "hms", "Remote HMS monitor", | |
1315 | "Use the H8 evaluation board running the HMS monitor connected\n\ | |
fa4b55a1 SC |
1316 | by a serial line.", |
1317 | ||
ec25d19b SC |
1318 | hms_open, hms_close, |
1319 | 0, hms_detach, hms_resume, hms_wait, /* attach */ | |
1320 | hms_fetch_register, hms_store_register, | |
1321 | hms_prepare_to_store, | |
1322 | hms_xfer_inferior_memory, | |
1323 | hms_files_info, | |
1324 | hms_insert_breakpoint, hms_remove_breakpoint, /* Breakpoints */ | |
1325 | 0, 0, 0, 0, 0, /* Terminal handling */ | |
1326 | hms_kill, /* FIXME, kill */ | |
1327 | hms_load, | |
1328 | 0, /* lookup_symbol */ | |
1329 | hms_create_inferior, /* create_inferior */ | |
1330 | hms_mourn, /* mourn_inferior FIXME */ | |
1331 | 0, /* can_run */ | |
1332 | 0, /* notice_signals */ | |
1333 | process_stratum, 0, /* next */ | |
1334 | 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */ | |
1335 | 0, 0, /* Section pointers */ | |
1336 | OPS_MAGIC, /* Always the last thing */ | |
fa4b55a1 SC |
1337 | }; |
1338 | ||
ec25d19b | 1339 | hms_quiet () |
fa4b55a1 | 1340 | { |
ec25d19b SC |
1341 | quiet = !quiet; |
1342 | if (quiet) | |
1343 | printf_filtered ("Snoop disabled\n"); | |
1344 | else | |
1345 | printf_filtered ("Snoop enabled\n"); | |
ae0ea72e | 1346 | |
fa4b55a1 SC |
1347 | } |
1348 | ||
ec25d19b SC |
1349 | hms_device (s) |
1350 | char *s; | |
fa4b55a1 | 1351 | { |
ec25d19b SC |
1352 | if (s) |
1353 | { | |
1354 | dev_name = get_word (&s); | |
1355 | } | |
fa4b55a1 SC |
1356 | } |
1357 | ||
ec25d19b SC |
1358 | static |
1359 | hms_speed (s) | |
1360 | char *s; | |
fa4b55a1 | 1361 | { |
ec25d19b SC |
1362 | check_open (); |
1363 | ||
1364 | if (s) | |
1365 | { | |
1366 | char buffer[100]; | |
1367 | int newrate = atoi (s); | |
1368 | int which = 0; | |
1369 | ||
a493d9a6 | 1370 | if (SERIAL_SETBAUDRATE (desc, newrate)) |
ec25d19b SC |
1371 | error ("Can't use %d baud\n", newrate); |
1372 | ||
1373 | printf_filtered ("Checking target is in sync\n"); | |
1374 | ||
ec25d19b SC |
1375 | printf_filtered ("Sending commands to set target to %d\n", |
1376 | baudrate); | |
1377 | ||
1378 | sprintf (buffer, "tm %d. N 8 1", baudrate); | |
1379 | hms_write_cr (buffer); | |
1380 | } | |
fa4b55a1 SC |
1381 | } |
1382 | ||
1383 | /***********************************************************************/ | |
1384 | ||
1385 | void | |
1386 | _initialize_remote_hms () | |
1387 | { | |
1388 | add_target (&hms_ops); | |
ec25d19b | 1389 | |
fa4b55a1 | 1390 | add_com ("hms <command>", class_obscure, hms_com, |
ec25d19b | 1391 | "Send a command to the HMS monitor."); |
fa4b55a1 SC |
1392 | add_com ("snoop", class_obscure, hms_quiet, |
1393 | "Show what commands are going to the monitor"); | |
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 | } |