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 */ | |
37 | extern int stop_soon_quietly; /* for wait_for_inferior */ | |
38 | ||
fa4b55a1 SC |
39 | /* Forward data declarations */ |
40 | extern struct target_ops hms_ops; /* Forward declaration */ | |
41 | ||
42 | /* Forward function declarations */ | |
43 | static void hms_fetch_registers (); | |
44 | static int hms_store_registers (); | |
45 | static void hms_close (); | |
46 | static int hms_clear_breakpoints(); | |
47 | ||
48 | extern struct target_ops hms_ops; | |
49 | ||
1f46923f SC |
50 | static int quiet = 1; |
51 | ||
fa4b55a1 | 52 | #ifdef DEBUG |
1f46923f SC |
53 | # define DENTER(NAME) if (!quiet) (printf_filtered("Entering %s\n",NAME), fflush(stdout)) |
54 | # define DEXIT(NAME) if (!quiet) (printf_filtered("Exiting %s\n",NAME), fflush(stdout)) | |
fa4b55a1 SC |
55 | #else |
56 | # define DENTER(NAME) | |
57 | # define DEXIT(NAME) | |
58 | #endif | |
59 | ||
60 | ||
1f46923f SC |
61 | /***********************************************************************/ |
62 | /* Caching stuff stolen from remote-nindy.c */ | |
63 | ||
64 | /* The data cache records all the data read from the remote machine | |
65 | since the last time it stopped. | |
66 | ||
67 | Each cache block holds LINE_SIZE bytes of data | |
68 | starting at a multiple-of-LINE_SIZE address. */ | |
69 | ||
70 | ||
71 | #define LINE_SIZE_POWER 4 | |
72 | #define LINE_SIZE (1<<LINE_SIZE_POWER) /* eg 1<<3 == 8 */ | |
73 | #define LINE_SIZE_MASK ((LINE_SIZE-1)) /* eg 7*2+1= 111*/ | |
74 | #define DCACHE_SIZE 64 /* Number of cache blocks */ | |
75 | #define XFORM(x) ((x&LINE_SIZE_MASK)>>2) | |
76 | struct dcache_block { | |
77 | struct dcache_block *next, *last; | |
78 | unsigned int addr; /* Address for which data is recorded. */ | |
79 | int data[LINE_SIZE/sizeof(int)]; | |
80 | }; | |
81 | ||
82 | struct dcache_block dcache_free, dcache_valid; | |
83 | ||
84 | /* Free all the data cache blocks, thus discarding all cached data. */ | |
85 | static | |
86 | void | |
87 | dcache_flush () | |
88 | { | |
89 | register struct dcache_block *db; | |
90 | ||
91 | while ((db = dcache_valid.next) != &dcache_valid) | |
92 | { | |
93 | remque (db); | |
94 | insque (db, &dcache_free); | |
95 | } | |
96 | } | |
97 | ||
98 | /* | |
99 | * If addr is present in the dcache, return the address of the block | |
100 | * containing it. | |
101 | */ | |
102 | static | |
103 | struct dcache_block * | |
104 | dcache_hit (addr) | |
105 | unsigned int addr; | |
106 | { | |
107 | register struct dcache_block *db; | |
108 | ||
109 | if (addr & 3) | |
110 | abort (); | |
111 | ||
112 | /* Search all cache blocks for one that is at this address. */ | |
113 | db = dcache_valid.next; | |
114 | while (db != &dcache_valid) | |
115 | { | |
116 | if ((addr & ~LINE_SIZE_MASK)== db->addr) | |
117 | return db; | |
118 | db = db->next; | |
119 | } | |
120 | return NULL; | |
121 | } | |
122 | ||
123 | /* Return the int data at address ADDR in dcache block DC. */ | |
124 | static | |
125 | int | |
126 | dcache_value (db, addr) | |
127 | struct dcache_block *db; | |
128 | unsigned int addr; | |
129 | { | |
130 | if (addr & 3) | |
131 | abort (); | |
132 | return (db->data[XFORM(addr)]); | |
133 | } | |
134 | ||
135 | /* Get a free cache block, put or keep it on the valid list, | |
136 | and return its address. The caller should store into the block | |
137 | the address and data that it describes, then remque it from the | |
138 | free list and insert it into the valid list. This procedure | |
139 | prevents errors from creeping in if a ninMemGet is interrupted | |
140 | (which used to put garbage blocks in the valid list...). */ | |
141 | static | |
142 | struct dcache_block * | |
143 | dcache_alloc () | |
144 | { | |
145 | register struct dcache_block *db; | |
146 | ||
147 | if ((db = dcache_free.next) == &dcache_free) | |
148 | { | |
149 | /* If we can't get one from the free list, take last valid and put | |
150 | it on the free list. */ | |
151 | db = dcache_valid.last; | |
152 | remque (db); | |
153 | insque (db, &dcache_free); | |
154 | } | |
155 | ||
156 | remque (db); | |
157 | insque (db, &dcache_valid); | |
158 | return (db); | |
159 | } | |
160 | ||
161 | /* Return the contents of the word at address ADDR in the remote machine, | |
162 | using the data cache. */ | |
163 | static | |
164 | int | |
165 | dcache_fetch (addr) | |
166 | CORE_ADDR addr; | |
167 | { | |
168 | register struct dcache_block *db; | |
169 | ||
170 | db = dcache_hit (addr); | |
171 | if (db == 0) | |
172 | { | |
173 | db = dcache_alloc (); | |
174 | immediate_quit++; | |
175 | hms_read_inferior_memory(addr & ~LINE_SIZE_MASK, (unsigned char *)db->data, LINE_SIZE); | |
176 | immediate_quit--; | |
177 | db->addr = addr & ~LINE_SIZE_MASK; | |
178 | remque (db); /* Off the free list */ | |
179 | insque (db, &dcache_valid); /* On the valid list */ | |
180 | } | |
181 | return (dcache_value (db, addr)); | |
182 | } | |
183 | ||
184 | /* Write the word at ADDR both in the data cache and in the remote machine. */ | |
185 | static void | |
186 | dcache_poke (addr, data) | |
187 | CORE_ADDR addr; | |
188 | int data; | |
189 | { | |
190 | register struct dcache_block *db; | |
191 | ||
192 | /* First make sure the word is IN the cache. DB is its cache block. */ | |
193 | db = dcache_hit (addr); | |
194 | if (db == 0) | |
195 | { | |
196 | db = dcache_alloc (); | |
197 | immediate_quit++; | |
198 | hms_write_inferior_memory(addr & ~LINE_SIZE_MASK, (unsigned char *)db->data, LINE_SIZE); | |
199 | immediate_quit--; | |
200 | db->addr = addr & ~LINE_SIZE_MASK; | |
201 | remque (db); /* Off the free list */ | |
202 | insque (db, &dcache_valid); /* On the valid list */ | |
203 | } | |
204 | ||
205 | /* Modify the word in the cache. */ | |
206 | db->data[XFORM(addr)] = data; | |
207 | ||
208 | /* Send the changed word. */ | |
209 | immediate_quit++; | |
210 | hms_write_inferior_memory(addr, (unsigned char *)&data, 4); | |
211 | immediate_quit--; | |
212 | } | |
213 | ||
214 | /* The cache itself. */ | |
215 | struct dcache_block the_cache[DCACHE_SIZE]; | |
216 | ||
217 | /* Initialize the data cache. */ | |
218 | static void | |
219 | dcache_init () | |
220 | { | |
221 | register i; | |
222 | register struct dcache_block *db; | |
223 | ||
224 | db = the_cache; | |
225 | dcache_free.next = dcache_free.last = &dcache_free; | |
226 | dcache_valid.next = dcache_valid.last = &dcache_valid; | |
227 | for (i=0;i<DCACHE_SIZE;i++,db++) | |
228 | insque (db, &dcache_free); | |
229 | } | |
fa4b55a1 | 230 | |
1f46923f SC |
231 | |
232 | /*********************************************************************** | |
233 | * I/O stuff stolen from remote-eb.c | |
234 | ***********************************************************************/ | |
235 | ||
236 | static int timeout = 2; | |
fa4b55a1 | 237 | |
b52373a2 | 238 | static const char *dev_name; |
1f46923f | 239 | |
fa4b55a1 SC |
240 | |
241 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that | |
242 | hms_open knows that we don't have a file open when the program | |
243 | starts. */ | |
fa4b55a1 | 244 | |
1f46923f | 245 | |
ae0ea72e SC |
246 | int is_open = 0; |
247 | int check_open() | |
fa4b55a1 | 248 | { |
ae0ea72e SC |
249 | if (!is_open) |
250 | { | |
251 | error("remote device not open"); | |
fa4b55a1 | 252 | } |
fa4b55a1 SC |
253 | } |
254 | ||
ae0ea72e SC |
255 | #define ON 1 |
256 | #define OFF 0 | |
1f46923f SC |
257 | |
258 | /* Read a character from the remote system, doing all the fancy | |
259 | timeout stuff. */ | |
260 | static int | |
261 | readchar () | |
fa4b55a1 | 262 | { |
ae0ea72e SC |
263 | int ok; |
264 | int buf; | |
265 | buf = serial_timedreadchar(timeout, &ok); | |
1f46923f | 266 | |
ae0ea72e | 267 | if (!ok) |
1f46923f SC |
268 | error ("Timeout reading from remote system."); |
269 | ||
270 | if (!quiet) | |
271 | printf("%c",buf); | |
272 | ||
273 | return buf & 0x7f; | |
fa4b55a1 SC |
274 | } |
275 | ||
fa4b55a1 | 276 | static int |
1f46923f | 277 | readchar_nofail () |
fa4b55a1 | 278 | { |
ae0ea72e SC |
279 | int ok; |
280 | int buf; | |
281 | buf = serial_timedreadchar(timeout, &ok); | |
282 | if (!ok) buf = 0; | |
283 | if (!quiet) | |
284 | printf("%c",buf); | |
285 | ||
fa4b55a1 | 286 | return buf & 0x7f; |
ae0ea72e | 287 | |
fa4b55a1 SC |
288 | } |
289 | ||
290 | /* Keep discarding input from the remote system, until STRING is found. | |
291 | Let the user break out immediately. */ | |
292 | static void | |
293 | expect (string) | |
294 | char *string; | |
295 | { | |
296 | char *p = string; | |
297 | ||
298 | ||
299 | immediate_quit = 1; | |
300 | while (1) | |
301 | { | |
302 | if (readchar() == *p) | |
303 | { | |
304 | p++; | |
305 | if (*p == '\0') | |
306 | { | |
307 | immediate_quit = 0; | |
308 | return; | |
309 | } | |
310 | } | |
311 | else | |
312 | p = string; | |
313 | } | |
314 | } | |
315 | ||
316 | /* Keep discarding input until we see the hms prompt. | |
317 | ||
318 | The convention for dealing with the prompt is that you | |
319 | o give your command | |
320 | o *then* wait for the prompt. | |
321 | ||
322 | Thus the last thing that a procedure does with the serial line | |
323 | will be an expect_prompt(). Exception: hms_resume does not | |
324 | wait for the prompt, because the terminal is being handed over | |
325 | to the inferior. However, the next thing which happens after that | |
326 | is a hms_wait which does wait for the prompt. | |
327 | Note that this includes abnormal exit, e.g. error(). This is | |
328 | necessary to prevent getting into states from which we can't | |
329 | recover. */ | |
330 | static void | |
331 | expect_prompt () | |
332 | { | |
fa4b55a1 SC |
333 | expect ("HMS>"); |
334 | } | |
335 | ||
336 | /* Get a hex digit from the remote system & return its value. | |
337 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ | |
338 | static int | |
339 | get_hex_digit (ignore_space) | |
340 | int ignore_space; | |
341 | { | |
342 | int ch; | |
343 | while (1) | |
344 | { | |
345 | ch = readchar (); | |
346 | if (ch >= '0' && ch <= '9') | |
347 | return ch - '0'; | |
348 | else if (ch >= 'A' && ch <= 'F') | |
349 | return ch - 'A' + 10; | |
350 | else if (ch >= 'a' && ch <= 'f') | |
351 | return ch - 'a' + 10; | |
352 | else if (ch == ' ' && ignore_space) | |
353 | ; | |
354 | else | |
355 | { | |
356 | expect_prompt (); | |
357 | error ("Invalid hex digit from remote system."); | |
358 | } | |
359 | } | |
360 | } | |
361 | ||
362 | /* Get a byte from hms_desc and put it in *BYT. Accept any number | |
363 | leading spaces. */ | |
364 | static void | |
365 | get_hex_byte (byt) | |
366 | char *byt; | |
367 | { | |
368 | int val; | |
369 | ||
370 | val = get_hex_digit (1) << 4; | |
371 | val |= get_hex_digit (0); | |
372 | *byt = val; | |
373 | } | |
374 | ||
375 | /* Read a 32-bit hex word from the hms, preceded by a space */ | |
376 | static long | |
377 | get_hex_word() | |
378 | { | |
379 | long val; | |
380 | int j; | |
381 | ||
382 | val = 0; | |
383 | for (j = 0; j < 8; j++) | |
384 | val = (val << 4) + get_hex_digit (j == 0); | |
385 | return val; | |
386 | } | |
387 | /* Called when SIGALRM signal sent due to alarm() timeout. */ | |
fa4b55a1 | 388 | |
fa4b55a1 | 389 | |
fa4b55a1 SC |
390 | |
391 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
392 | NEED_ARTIFICIAL_TRAP calls to hms_wait should just return | |
393 | SIGTRAP without actually waiting for anything. */ | |
394 | ||
395 | static int need_artificial_trap = 0; | |
396 | ||
397 | void | |
398 | hms_kill(arg,from_tty) | |
399 | char *arg; | |
400 | int from_tty; | |
401 | { | |
fa4b55a1 | 402 | |
fa4b55a1 | 403 | } |
1f46923f | 404 | |
ae0ea72e | 405 | |
1f46923f | 406 | |
fa4b55a1 SC |
407 | /* |
408 | * Download a file specified in 'args', to the hms. | |
409 | */ | |
410 | static void | |
411 | hms_load(args,fromtty) | |
412 | char *args; | |
413 | int fromtty; | |
414 | { | |
415 | bfd *abfd; | |
416 | asection *s; | |
417 | int n; | |
418 | char buffer[1024]; | |
ae0ea72e SC |
419 | |
420 | ||
fa4b55a1 | 421 | DENTER("hms_load()"); |
1f46923f SC |
422 | check_open(); |
423 | ||
424 | dcache_flush(); | |
425 | inferior_pid = 0; | |
fa4b55a1 SC |
426 | abfd = bfd_openr(args,"coff-h8300"); |
427 | if (!abfd) | |
428 | { | |
1f46923f | 429 | printf_filtered("Unable to open file %s\n", args); |
fa4b55a1 SC |
430 | return; |
431 | } | |
432 | ||
433 | if (bfd_check_format(abfd, bfd_object) ==0) | |
434 | { | |
435 | printf_filtered("File is not an object file\n"); | |
436 | return ; | |
437 | } | |
438 | ||
439 | s = abfd->sections; | |
440 | while (s != (asection *)NULL) | |
441 | { | |
442 | if (s->flags & SEC_LOAD) | |
443 | { | |
96743d3c | 444 | int i; |
fa4b55a1 | 445 | |
96743d3c | 446 | |
ae0ea72e | 447 | #define DELTA 1024 |
96743d3c | 448 | char *buffer = xmalloc(DELTA); |
ae0ea72e | 449 | printf_filtered("%s\t: 0x%4x .. 0x%4x ",s->name, s->vma, s->vma + s->_raw_size); |
96743d3c SC |
450 | for (i = 0; i < s->_raw_size; i+= DELTA) |
451 | { | |
452 | int delta = DELTA; | |
453 | if (delta > s->_raw_size - i) | |
454 | delta = s->_raw_size - i ; | |
455 | ||
456 | bfd_get_section_contents(abfd, s, buffer, i, delta); | |
457 | hms_write_inferior_memory(s->vma + i, buffer, delta); | |
458 | printf_filtered("*"); | |
459 | fflush(stdout); | |
460 | } | |
ae0ea72e | 461 | printf_filtered( "\n"); |
fa4b55a1 SC |
462 | free(buffer); |
463 | } | |
464 | s = s->next; | |
465 | } | |
ae0ea72e SC |
466 | sprintf(buffer, "r PC=%x", abfd->start_address); |
467 | hms_write_cr(buffer); | |
468 | expect_prompt(); | |
fa4b55a1 SC |
469 | |
470 | DEXIT("hms_load()"); | |
471 | } | |
472 | ||
473 | /* This is called not only when we first attach, but also when the | |
474 | user types "run" after having attached. */ | |
475 | void | |
476 | hms_create_inferior (execfile, args, env) | |
477 | char *execfile; | |
478 | char *args; | |
479 | char **env; | |
480 | { | |
481 | int entry_pt; | |
ae0ea72e | 482 | char buffer[100]; |
fa4b55a1 SC |
483 | DENTER("hms_create_inferior()"); |
484 | ||
485 | if (args && *args) | |
486 | error ("Can't pass arguments to remote hms process."); | |
487 | ||
488 | if (execfile == 0 || exec_bfd == 0) | |
489 | error ("No exec file specified"); | |
490 | ||
491 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
1f46923f | 492 | check_open(); |
1f46923f | 493 | |
fa4b55a1 | 494 | |
ae0ea72e SC |
495 | hms_kill(NULL,NULL); |
496 | hms_clear_breakpoints(); | |
497 | init_wait_for_inferior (); | |
498 | hms_write_cr(""); | |
499 | expect_prompt(); | |
fa4b55a1 | 500 | |
ae0ea72e SC |
501 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
502 | proceed(entry_pt, -1, 0); | |
fa4b55a1 SC |
503 | |
504 | ||
fa4b55a1 SC |
505 | DEXIT("hms_create_inferior()"); |
506 | } | |
507 | ||
fa4b55a1 SC |
508 | |
509 | /* Open a connection to a remote debugger. | |
510 | NAME is the filename used for communication, then a space, | |
511 | then the baud rate. | |
512 | */ | |
513 | ||
514 | static char * | |
515 | find_end_of_word(s) | |
516 | char *s; | |
517 | { | |
518 | while (*s && !isspace(*s)) | |
519 | s++; | |
520 | return s; | |
521 | } | |
522 | ||
523 | static char *get_word(p) | |
524 | char **p; | |
525 | { | |
526 | char *s = *p; | |
527 | char *word ; | |
528 | char *copy; | |
529 | size_t len; | |
530 | ||
531 | while (isspace(*s)) | |
532 | s++; | |
533 | ||
534 | word = s; | |
535 | ||
536 | len = 0; | |
537 | ||
538 | while (*s && !isspace(*s)) | |
539 | { | |
540 | s++; | |
541 | len++; | |
542 | ||
543 | } | |
544 | copy = xmalloc(len+1); | |
545 | memcpy(copy, word, len); | |
546 | copy[len] = 0; | |
547 | *p = s; | |
548 | return copy; | |
549 | } | |
550 | ||
551 | static int baudrate = 9600; | |
1f46923f SC |
552 | |
553 | static int | |
554 | is_baudrate_right() | |
555 | { | |
ae0ea72e | 556 | int ok; |
1f46923f | 557 | /* Put this port into NORMAL mode, send the 'normal' character */ |
ae0ea72e | 558 | |
1f46923f SC |
559 | hms_write("\001", 1); /* Control A */ |
560 | hms_write("\r", 1); /* Cr */ | |
1f46923f | 561 | |
ae0ea72e SC |
562 | while (1) |
563 | { | |
564 | serial_timedreadchar(timeout, &ok); | |
565 | if (!ok) break; | |
566 | } | |
567 | ||
568 | hms_write("r",1); | |
569 | ||
1f46923f SC |
570 | if (readchar_nofail() == 'r') |
571 | return 1; | |
572 | ||
573 | /* Not the right baudrate, or the board's not on */ | |
574 | return 0; | |
1f46923f SC |
575 | } |
576 | static void | |
577 | set_rate() | |
578 | { | |
ae0ea72e SC |
579 | if (!serial_setbaudrate(baudrate)) |
580 | error("Can't set baudrate"); | |
1f46923f SC |
581 | } |
582 | ||
583 | static void | |
584 | get_baudrate_right() | |
585 | { | |
1f46923f SC |
586 | while (!is_baudrate_right()) |
587 | { | |
ae0ea72e SC |
588 | baudrate = serial_nextbaudrate(baudrate); |
589 | if (baudrate == 0) { | |
590 | printf_filtered("Board not yet in sync\n"); | |
591 | break; | |
1f46923f | 592 | } |
1f46923f SC |
593 | printf_filtered("Board not responding, trying %d baud\n",baudrate); |
594 | QUIT; | |
ae0ea72e | 595 | serial_setbaudrate(baudrate); |
1f46923f SC |
596 | } |
597 | } | |
598 | ||
fa4b55a1 SC |
599 | static void |
600 | hms_open (name, from_tty) | |
601 | char *name; | |
602 | int from_tty; | |
603 | { | |
1f46923f | 604 | |
fa4b55a1 SC |
605 | unsigned int prl; |
606 | char *p; | |
607 | ||
608 | DENTER("hms_open()"); | |
609 | if(name == 0) | |
610 | { | |
611 | name = ""; | |
612 | ||
613 | } | |
ae0ea72e SC |
614 | if (is_open) |
615 | hms_close (0); | |
616 | if (name && strlen(name)) | |
617 | dev_name = strdup(name); | |
618 | if (!serial_open(dev_name)) | |
619 | perror_with_name ((char *)dev_name); | |
620 | serial_raw(); | |
621 | is_open = 1; | |
fa4b55a1 | 622 | |
1f46923f SC |
623 | |
624 | dcache_init(); | |
fa4b55a1 SC |
625 | |
626 | ||
fa4b55a1 SC |
627 | /* start_remote (); /* Initialize gdb process mechanisms */ |
628 | ||
1f46923f | 629 | get_baudrate_right(); |
fa4b55a1 SC |
630 | |
631 | /* Hello? Are you there? */ | |
ae0ea72e | 632 | serial_write("\r",1); |
fa4b55a1 SC |
633 | expect_prompt (); |
634 | ||
635 | /* Clear any break points */ | |
636 | hms_clear_breakpoints(); | |
637 | ||
638 | ||
ae0ea72e | 639 | printf_filtered("Connected to remote H8/300 HMS system.\n"); |
fa4b55a1 SC |
640 | |
641 | DEXIT("hms_open()"); | |
642 | } | |
643 | ||
644 | /* Close out all files and local state before this target loses control. */ | |
645 | ||
646 | static void | |
647 | hms_close (quitting) | |
648 | int quitting; | |
649 | { | |
650 | ||
651 | DENTER("hms_close()"); | |
652 | ||
653 | /* Clear any break points */ | |
654 | hms_clear_breakpoints(); | |
655 | ||
656 | /* Put this port back into REMOTE mode */ | |
ae0ea72e SC |
657 | sleep(1); /* Let any output make it all the way back */ |
658 | serial_write("R\r", 2); | |
659 | serial_close(); | |
660 | is_open = 0; | |
fa4b55a1 SC |
661 | |
662 | DEXIT("hms_close()"); | |
663 | } | |
664 | ||
665 | /* Attach to the target that is already loaded and possibly running */ | |
666 | static void | |
667 | hms_attach (args, from_tty) | |
668 | char *args; | |
669 | int from_tty; | |
670 | { | |
671 | ||
672 | DENTER("hms_attach()"); | |
fa4b55a1 SC |
673 | |
674 | /* push_target(&hms_ops); /* This done in hms_open() */ | |
675 | ||
676 | mark_breakpoints_out (); | |
677 | ||
678 | /* Send the hms a kill. It is ok if it is not already running */ | |
679 | #if 0 | |
680 | fprintf(hms_stream, "K\r"); | |
681 | expect_prompt(); /* Slurp the echo */ | |
682 | #endif | |
683 | /* We will get a task spawn event immediately. */ | |
684 | init_wait_for_inferior (); | |
685 | clear_proceed_status (); | |
686 | stop_soon_quietly = 1; | |
687 | wait_for_inferior (); | |
688 | stop_soon_quietly = 0; | |
689 | normal_stop (); | |
690 | DEXIT("hms_attach()"); | |
691 | } | |
692 | ||
693 | ||
694 | /* Terminate the open connection to the remote debugger. | |
695 | Use this when you want to detach and do something else | |
696 | with your gdb. */ | |
697 | void | |
698 | hms_detach (args,from_tty) | |
699 | char *args; | |
700 | int from_tty; | |
701 | { | |
702 | DENTER("hms_detach()"); | |
ae0ea72e SC |
703 | if (is_open) |
704 | { | |
fa4b55a1 | 705 | hms_clear_breakpoints(); |
fa4b55a1 SC |
706 | } |
707 | ||
708 | pop_target(); /* calls hms_close to do the real work */ | |
709 | if (from_tty) | |
710 | printf_filtered ("Ending remote %s debugging\n", target_shortname); | |
711 | DEXIT("hms_detach()"); | |
712 | } | |
713 | ||
714 | /* Tell the remote machine to resume. */ | |
715 | ||
716 | void | |
717 | hms_resume (step, sig) | |
718 | int step, sig; | |
719 | { | |
720 | DENTER("hms_resume()"); | |
1f46923f SC |
721 | dcache_flush(); |
722 | ||
fa4b55a1 SC |
723 | if (step) |
724 | { | |
725 | hms_write_cr("s"); | |
96743d3c SC |
726 | expect("Step>"); |
727 | ||
fa4b55a1 SC |
728 | /* Force the next hms_wait to return a trap. Not doing anything |
729 | about I/O from the target means that the user has to type | |
730 | "continue" to see any. FIXME, this should be fixed. */ | |
731 | need_artificial_trap = 1; | |
732 | } | |
733 | else | |
734 | { | |
735 | hms_write_cr("g"); | |
96743d3c | 736 | expect("g"); |
fa4b55a1 SC |
737 | } |
738 | DEXIT("hms_resume()"); | |
739 | } | |
740 | ||
741 | /* Wait until the remote machine stops, then return, | |
742 | storing status in STATUS just as `wait' would. */ | |
743 | ||
744 | int | |
745 | hms_wait (status) | |
746 | WAITTYPE *status; | |
747 | { | |
748 | /* Strings to look for. '?' means match any single character. | |
749 | Note that with the algorithm we use, the initial character | |
750 | of the string cannot recur in the string, or we will not | |
751 | find some cases of the string in the input. */ | |
752 | ||
96743d3c | 753 | static char bpt[] = "At breakpoint:"; |
fa4b55a1 SC |
754 | /* It would be tempting to look for "\n[__exit + 0x8]\n" |
755 | but that requires loading symbols with "yc i" and even if | |
756 | we did do that we don't know that the file has symbols. */ | |
757 | static char exitmsg[] = "HMS>"; | |
758 | char *bp = bpt; | |
759 | char *ep = exitmsg; | |
760 | ||
761 | /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */ | |
762 | char swallowed[50]; | |
763 | /* Current position in swallowed. */ | |
764 | char *swallowed_p = swallowed; | |
765 | ||
766 | int ch; | |
767 | int ch_handled; | |
768 | int old_timeout = timeout; | |
769 | int old_immediate_quit = immediate_quit; | |
1f46923f SC |
770 | int swallowed_cr = 0; |
771 | ||
fa4b55a1 SC |
772 | DENTER("hms_wait()"); |
773 | ||
774 | WSETEXIT ((*status), 0); | |
775 | ||
776 | if (need_artificial_trap != 0) | |
1f46923f SC |
777 | { |
778 | WSETSTOP ((*status), SIGTRAP); | |
779 | need_artificial_trap--; | |
780 | return 0; | |
781 | } | |
fa4b55a1 | 782 | |
ae0ea72e | 783 | timeout = 99999; /* Don't time out -- user program is running. */ |
1f46923f | 784 | immediate_quit = 1; /* Helps ability to QUIT */ |
96743d3c SC |
785 | while (1) |
786 | { | |
787 | QUIT; /* Let user quit and leave process running */ | |
788 | ch_handled = 0; | |
789 | ch = readchar (); | |
790 | if (ch == *bp) | |
791 | { | |
792 | bp++; | |
793 | if (*bp == '\0') | |
794 | break; | |
795 | ch_handled = 1; | |
796 | ||
797 | *swallowed_p++ = ch; | |
798 | } | |
799 | else | |
800 | { | |
801 | bp = bpt; | |
802 | } | |
803 | if (ch == *ep || *ep == '?') | |
804 | { | |
805 | ep++; | |
806 | if (*ep == '\0') | |
807 | break; | |
808 | ||
809 | if (!ch_handled) | |
810 | *swallowed_p++ = ch; | |
811 | ch_handled = 1; | |
812 | } | |
813 | else | |
814 | { | |
815 | ep = exitmsg; | |
816 | } | |
817 | ||
818 | if (!ch_handled) { | |
819 | char *p; | |
820 | /* Print out any characters which have been swallowed. */ | |
821 | for (p = swallowed; p < swallowed_p; ++p) | |
822 | putc (*p, stdout); | |
823 | swallowed_p = swallowed; | |
fa4b55a1 SC |
824 | |
825 | ||
96743d3c SC |
826 | if ((ch != '\r' && ch != '\n') || swallowed_cr>10) |
827 | { | |
828 | putc (ch, stdout); | |
829 | swallowed_cr = 10; | |
fa4b55a1 | 830 | } |
96743d3c SC |
831 | swallowed_cr ++; |
832 | ||
833 | } | |
834 | } | |
fa4b55a1 SC |
835 | if (*bp== '\0') |
836 | { | |
837 | WSETSTOP ((*status), SIGTRAP); | |
838 | expect_prompt(); | |
839 | } | |
840 | else | |
841 | { | |
842 | WSETEXIT ((*status), 0); | |
843 | } | |
844 | ||
845 | timeout = old_timeout; | |
846 | immediate_quit = old_immediate_quit; | |
fa4b55a1 SC |
847 | DEXIT("hms_wait()"); |
848 | return 0; | |
849 | } | |
850 | ||
851 | /* Return the name of register number REGNO | |
852 | in the form input and output by hms. | |
853 | ||
854 | Returns a pointer to a static buffer containing the answer. */ | |
855 | static char * | |
856 | get_reg_name (regno) | |
857 | int regno; | |
858 | { | |
ae0ea72e | 859 | static char *rn[NUM_REGS]= REGISTER_NAMES; |
fa4b55a1 | 860 | return rn[regno]; |
fa4b55a1 SC |
861 | } |
862 | ||
863 | /* Read the remote registers. */ | |
864 | static int gethex(length, start, ok) | |
865 | unsigned int length; | |
866 | char *start; | |
867 | int *ok; | |
868 | { | |
869 | int result = 0; | |
870 | while (length--) | |
871 | { | |
872 | result <<= 4 ; | |
873 | if (*start >='a' && *start <= 'f') | |
874 | { | |
875 | result += *start - 'a' + 10; | |
876 | } | |
877 | else if (*start >='A' && *start <= 'F') | |
878 | { | |
879 | result += *start - 'A' + 10; | |
880 | } | |
881 | else if (*start >='0' && *start <= '9') | |
882 | { | |
883 | result += *start - '0' ; | |
884 | } | |
885 | else *ok = 0; | |
886 | start++; | |
887 | ||
888 | } | |
889 | return result; | |
890 | } | |
891 | static int | |
892 | timed_read(buf, n, timeout) | |
893 | char *buf; | |
894 | ||
895 | { | |
896 | int i; | |
897 | char c; | |
898 | i = 0; | |
899 | while (i < n) | |
900 | { | |
901 | c = readchar(); | |
902 | ||
903 | if (c == 0) return i; | |
904 | buf[i] = c; | |
905 | i++; | |
906 | ||
907 | } | |
908 | return i; | |
909 | ||
910 | } | |
911 | hms_write(a,l) | |
912 | char *a; | |
913 | { | |
914 | int i; | |
ae0ea72e SC |
915 | serial_write(a, l); |
916 | ||
96743d3c SC |
917 | if (!quiet) |
918 | for (i = 0; i < l ; i++) | |
919 | { | |
920 | printf("%c", a[i]); | |
921 | } | |
fa4b55a1 SC |
922 | } |
923 | ||
1f46923f SC |
924 | hms_write_cr(s) |
925 | char *s; | |
fa4b55a1 | 926 | { |
ae0ea72e SC |
927 | hms_write( s, strlen(s)); |
928 | hms_write("\r",1); | |
1f46923f SC |
929 | } |
930 | ||
931 | static void | |
ae0ea72e SC |
932 | hms_fetch_register (dummy) |
933 | int dummy; | |
fa4b55a1 SC |
934 | { |
935 | #define REGREPLY_SIZE 79 | |
936 | char linebuf[REGREPLY_SIZE+1]; | |
937 | int i; | |
938 | int s ; | |
939 | int gottok; | |
940 | ||
1f46923f SC |
941 | REGISTER_TYPE reg[NUM_REGS]; |
942 | int foo[8]; | |
fa4b55a1 SC |
943 | check_open(); |
944 | ||
945 | do | |
946 | { | |
947 | ||
948 | hms_write_cr("r"); | |
949 | s = timed_read(linebuf, REGREPLY_SIZE, 1); | |
950 | ||
951 | ||
952 | linebuf[REGREPLY_SIZE] = 0; | |
953 | gottok = 0; | |
954 | if (linebuf[0] == 'r' && | |
fa4b55a1 SC |
955 | linebuf[3] == 'P' && |
956 | linebuf[4] == 'C' && | |
957 | linebuf[5] == '=' && | |
958 | linebuf[75] == 'H' && | |
959 | linebuf[76] == 'M' && | |
960 | linebuf[77] == 'S') | |
961 | { | |
962 | /* | |
963 | PC=XXXX CCR=XX:XXXXXXXX R0-R7= XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX | |
964 | 5436789012345678901234567890123456789012345678901234567890123456789012 | |
965 | 0 1 2 3 4 5 6 | |
966 | */ | |
967 | gottok = 1; | |
968 | ||
969 | reg[PC_REGNUM] = gethex(4,linebuf+6, &gottok); | |
970 | reg[CCR_REGNUM] = gethex(2,linebuf+15, &gottok); | |
971 | for (i = 0; i < 8; i++) | |
972 | { | |
973 | reg[i] = gethex(4, linebuf+34+5*i, &gottok); | |
974 | } | |
975 | } | |
976 | } | |
977 | while (!gottok); | |
978 | for (i = 0; i < NUM_REGS; i++) | |
979 | { | |
ae0ea72e SC |
980 | char swapped[2]; |
981 | swapped[1] = reg[i]; | |
982 | swapped[0] = (reg[i])>> 8; | |
fa4b55a1 | 983 | |
ae0ea72e SC |
984 | supply_register (i, swapped); |
985 | } | |
fa4b55a1 SC |
986 | } |
987 | ||
fa4b55a1 SC |
988 | |
989 | /* Store register REGNO, or all if REGNO == -1. | |
990 | Return errno value. */ | |
ae0ea72e | 991 | static void |
fa4b55a1 SC |
992 | hms_store_register (regno) |
993 | int regno; | |
994 | { | |
995 | ||
1f46923f | 996 | /* printf("hms_store_register() called.\n"); fflush(stdout); /* */ |
ae0ea72e SC |
997 | if (regno == -1) |
998 | { | |
999 | for (regno = 0; regno < NUM_REGS; regno ++) | |
1000 | { | |
1001 | hms_store_register(regno); | |
1002 | } | |
1003 | } | |
fa4b55a1 SC |
1004 | else |
1005 | { | |
1006 | char *name = get_reg_name (regno); | |
1007 | char buffer[100]; | |
1008 | sprintf(buffer,"r %s=%x", name, read_register(regno)); | |
1009 | hms_write_cr(buffer); | |
1010 | expect_prompt(); | |
1011 | } | |
1012 | ||
1013 | DEXIT("hms_store_registers()"); | |
ae0ea72e | 1014 | |
fa4b55a1 SC |
1015 | } |
1016 | ||
ae0ea72e SC |
1017 | |
1018 | ||
fa4b55a1 SC |
1019 | /* Get ready to modify the registers array. On machines which store |
1020 | individual registers, this doesn't need to do anything. On machines | |
1021 | which store all the registers in one fell swoop, this makes sure | |
1022 | that registers contains all the registers from the program being | |
1023 | debugged. */ | |
1024 | ||
1025 | void | |
1026 | hms_prepare_to_store () | |
1027 | { | |
1028 | /* Do nothing, since we can store individual regs */ | |
1029 | } | |
1030 | ||
1031 | static CORE_ADDR | |
1032 | translate_addr(addr) | |
1033 | CORE_ADDR addr; | |
1034 | { | |
1035 | ||
1036 | return(addr); | |
1037 | ||
1038 | } | |
1039 | ||
1040 | /* Read a word from remote address ADDR and return it. | |
1041 | * This goes through the data cache. | |
1042 | */ | |
1043 | int | |
1044 | hms_fetch_word (addr) | |
1045 | CORE_ADDR addr; | |
1046 | { | |
1047 | return dcache_fetch (addr); | |
1048 | } | |
1049 | ||
1050 | /* Write a word WORD into remote address ADDR. | |
1051 | This goes through the data cache. */ | |
1052 | ||
1053 | void | |
1054 | hms_store_word (addr, word) | |
1055 | CORE_ADDR addr; | |
1056 | int word; | |
1057 | { | |
1058 | dcache_poke (addr, word); | |
1059 | } | |
1060 | ||
1061 | int | |
1062 | hms_xfer_inferior_memory(memaddr, myaddr, len, write, target) | |
1063 | CORE_ADDR memaddr; | |
1064 | char *myaddr; | |
1065 | int len; | |
1066 | int write; | |
1067 | struct target_ops *target; /* ignored */ | |
1068 | { | |
1069 | register int i; | |
1070 | /* Round starting address down to longword boundary. */ | |
1071 | register CORE_ADDR addr; | |
1072 | /* Round ending address up; get number of longwords that makes. */ | |
1073 | register int count; | |
1074 | /* Allocate buffer of that many longwords. */ | |
1075 | register int *buffer ; | |
1076 | ||
1077 | memaddr &= 0xffff; | |
1078 | addr = memaddr & - sizeof (int); | |
1079 | count = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); | |
1080 | ||
1f46923f | 1081 | |
fa4b55a1 SC |
1082 | buffer = (int *)alloca (count * sizeof (int)); |
1083 | if (write) | |
1084 | { | |
1085 | /* Fill start and end extra bytes of buffer with existing memory data. */ | |
1086 | ||
1087 | if (addr != memaddr || len < (int)sizeof (int)) { | |
1088 | /* Need part of initial word -- fetch it. */ | |
1089 | buffer[0] = hms_fetch_word (addr); | |
1090 | } | |
1091 | ||
1092 | if (count > 1) /* FIXME, avoid if even boundary */ | |
1093 | { | |
1094 | buffer[count - 1] | |
1095 | = hms_fetch_word (addr + (count - 1) * sizeof (int)); | |
1096 | } | |
1097 | ||
1098 | /* Copy data to be written over corresponding part of buffer */ | |
1099 | ||
1100 | bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); | |
1101 | ||
1102 | /* Write the entire buffer. */ | |
1103 | ||
1104 | for (i = 0; i < count; i++, addr += sizeof (int)) | |
1105 | { | |
1106 | errno = 0; | |
1107 | hms_store_word (addr, buffer[i]); | |
1108 | if (errno) | |
1109 | { | |
1110 | ||
1111 | return 0; | |
1112 | } | |
1113 | ||
1114 | } | |
1115 | } | |
1116 | else | |
1117 | { | |
1118 | /* Read all the longwords */ | |
1119 | for (i = 0; i < count; i++, addr += sizeof (int)) | |
1120 | { | |
1121 | errno = 0; | |
1122 | buffer[i] = hms_fetch_word (addr); | |
1123 | if (errno) | |
1124 | { | |
1125 | return 0; | |
1126 | } | |
1127 | QUIT; | |
1128 | } | |
1129 | ||
1130 | /* Copy appropriate bytes out of the buffer. */ | |
1131 | bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); | |
1132 | } | |
1133 | ||
1134 | ||
1135 | return len; | |
1136 | } | |
1137 | ||
fa4b55a1 SC |
1138 | int |
1139 | hms_write_inferior_memory (memaddr, myaddr, len) | |
1140 | CORE_ADDR memaddr; | |
ae0ea72e | 1141 | unsigned char *myaddr; |
fa4b55a1 SC |
1142 | int len; |
1143 | { | |
ae0ea72e SC |
1144 | bfd_vma addr; |
1145 | int done; | |
1146 | int todo ; | |
1147 | done = 0; | |
1148 | while(done < len) | |
1149 | { | |
1150 | char buffer[20]; | |
1151 | int thisgo; | |
1152 | int idx; | |
1153 | thisgo = len - done; | |
1154 | if (thisgo > 20) thisgo = 20; | |
1155 | ||
1156 | sprintf(buffer,"M.B %4x =", memaddr+done); | |
1157 | hms_write(buffer,10); | |
1158 | for (idx = 0; idx < thisgo; idx++) | |
1159 | { | |
1160 | char buf[20]; | |
1161 | sprintf(buf, "%2x ", myaddr[idx+done]); | |
1162 | hms_write(buf, 3); | |
1163 | } | |
1164 | hms_write_cr(""); | |
1165 | expect_prompt(); | |
1166 | done += thisgo; | |
1167 | } | |
1168 | ||
fa4b55a1 | 1169 | |
fa4b55a1 SC |
1170 | } |
1171 | ||
1172 | void | |
1173 | hms_files_info () | |
1174 | { | |
ae0ea72e SC |
1175 | char *file = "nothing"; |
1176 | if (exec_bfd) | |
1177 | file = bfd_get_filename(exec_bfd); | |
1178 | ||
1179 | if (exec_bfd) | |
1180 | #ifdef __GO32__ | |
1181 | printf_filtered("\tAttached to DOS asynctsr and running program %s\n",file); | |
1182 | #else | |
1183 | printf_filtered("\tAttached to %s at %d baud and running program %s\n",file); | |
1184 | #endif | |
fa4b55a1 SC |
1185 | printf_filtered("\ton an H8/300 processor.\n"); |
1186 | } | |
1187 | ||
1188 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
1189 | to inferior's memory at MEMADDR. Returns errno value. | |
1190 | * sb/sh instructions don't work on unaligned addresses, when TU=1. | |
1191 | */ | |
1192 | ||
1193 | ||
1194 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result | |
1195 | at debugger address MYADDR. Returns errno value. */ | |
1196 | int | |
1197 | hms_read_inferior_memory(memaddr, myaddr, len) | |
1198 | CORE_ADDR memaddr; | |
1199 | char *myaddr; | |
1200 | int len; | |
1201 | { | |
1202 | /* Align to nearest low 16 bits */ | |
1203 | int i; | |
1204 | ||
1205 | #if 0 | |
1206 | CORE_ADDR start = memaddr & ~0xf; | |
1207 | CORE_ADDR end = ((memaddr + len +16) & ~0xf) -1; | |
1208 | #endif | |
1209 | CORE_ADDR start = memaddr; | |
1210 | CORE_ADDR end = memaddr + len -1; | |
1211 | ||
1212 | int ok =1; | |
1213 | ||
1214 | /* | |
1215 | AAAA: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX '................' | |
1216 | 012345678901234567890123456789012345678901234567890123456789012345 | |
1217 | 0 1 2 3 4 5 6 | |
1218 | */ | |
1219 | char buffer[66]; | |
1220 | if (memaddr & 0xf) abort(); | |
1221 | if (len != 16) abort(); | |
1222 | ||
96743d3c | 1223 | sprintf(buffer, "m %4x %4x", start & 0xffff, end & 0xffff); |
fa4b55a1 SC |
1224 | hms_write_cr(buffer); |
1225 | /* drop the echo and newline*/ | |
1226 | for (i = 0; i < 13; i++) | |
1227 | readchar(); | |
1228 | ||
1229 | ||
1230 | ||
1231 | /* Grab the lines as they come out and fill the area */ | |
1232 | /* Skip over cr */ | |
1233 | while(1) | |
1234 | { | |
1235 | int p; | |
1236 | int i; | |
1237 | int addr; | |
1238 | size_t idx; | |
1239 | ||
1240 | char byte[16]; | |
1241 | buffer[0] = readchar(); | |
1242 | if (buffer[0] == 'M') | |
1243 | break; | |
1244 | for (i = 1; i < 66; i++) | |
1245 | buffer[i] = readchar(); | |
1246 | ||
1247 | /* Now parse the line */ | |
1248 | ||
1249 | addr = gethex(4, buffer, &ok); | |
1250 | idx = 6; | |
1251 | for (p = 0; p < 16; p+=2) | |
1252 | { | |
1253 | byte[p] = gethex(2, buffer + idx, &ok); | |
1254 | byte[p+1] = gethex(2, buffer+ idx + 2, &ok); | |
1255 | idx+=5; | |
1256 | ||
1257 | } | |
1258 | ||
1259 | ||
1260 | for (p = 0; p<16;p++) | |
1261 | { | |
1262 | if (addr + p >= memaddr && | |
1263 | addr + p < memaddr + len) | |
1264 | { | |
1265 | myaddr[ (addr + p)-memaddr] = byte[p]; | |
1266 | ||
1267 | } | |
1268 | ||
1269 | } | |
1270 | } | |
96743d3c | 1271 | hms_write_cr(" "); |
fa4b55a1 | 1272 | expect_prompt(); |
fa4b55a1 | 1273 | return len; |
fa4b55a1 SC |
1274 | } |
1275 | ||
1276 | /* This routine is run as a hook, just before the main command loop is | |
1277 | entered. If gdb is configured for the H8, but has not had its | |
1278 | target specified yet, this will loop prompting the user to do so. | |
1279 | */ | |
1280 | ||
1281 | hms_before_main_loop () | |
1282 | { | |
1283 | char ttyname[100]; | |
1284 | char *p, *p2; | |
1285 | extern FILE *instream; | |
1286 | extern jmp_buf to_top_level; | |
1287 | ||
1288 | push_target (&hms_ops); | |
fa4b55a1 SC |
1289 | } |
1290 | ||
1291 | ||
1292 | #define MAX_BREAKS 16 | |
1293 | static int num_brkpts=0; | |
1294 | static int | |
1295 | hms_insert_breakpoint(addr, save) | |
1296 | CORE_ADDR addr; | |
1297 | char *save; /* Throw away, let hms save instructions */ | |
1298 | { | |
fa4b55a1 SC |
1299 | DENTER("hms_insert_breakpoint()"); |
1300 | check_open(); | |
1301 | ||
ae0ea72e SC |
1302 | if (num_brkpts < MAX_BREAKS) |
1303 | { | |
1304 | char buffer[100]; | |
1305 | num_brkpts++; | |
1306 | sprintf(buffer,"b %x", addr & 0xffff); | |
1307 | hms_write_cr(buffer); | |
1308 | expect_prompt (); | |
1309 | DEXIT("hms_insert_breakpoint() success"); | |
1310 | return(0); | |
1311 | } | |
1312 | else | |
1313 | { | |
1314 | fprintf_filtered(stderr, | |
1315 | "Too many break points, break point not installed\n"); | |
1316 | DEXIT("hms_insert_breakpoint() failure"); | |
1317 | return(1); | |
1318 | } | |
fa4b55a1 SC |
1319 | |
1320 | ||
1321 | } | |
1322 | static int | |
1323 | hms_remove_breakpoint(addr, save) | |
1324 | CORE_ADDR addr; | |
1325 | char *save; /* Throw away, let hms save instructions */ | |
1326 | { | |
1327 | DENTER("hms_remove_breakpoint()"); | |
ae0ea72e SC |
1328 | if (num_brkpts > 0) |
1329 | { | |
1330 | char buffer[100]; | |
fa4b55a1 | 1331 | |
ae0ea72e SC |
1332 | num_brkpts--; |
1333 | sprintf(buffer,"b - %x", addr & 0xffff); | |
1334 | hms_write_cr(buffer); | |
1335 | expect_prompt(); | |
fa4b55a1 | 1336 | |
ae0ea72e | 1337 | } |
fa4b55a1 SC |
1338 | DEXIT("hms_remove_breakpoint()"); |
1339 | return(0); | |
1340 | } | |
1341 | ||
1342 | /* Clear the hmss notion of what the break points are */ | |
1343 | static int | |
1344 | hms_clear_breakpoints() | |
1345 | { | |
1346 | ||
1347 | DENTER("hms_clear_breakpoint()"); | |
ae0ea72e SC |
1348 | if (is_open) { |
1349 | hms_write_cr("b -"); | |
1350 | expect_prompt (); | |
1351 | } | |
fa4b55a1 | 1352 | num_brkpts = 0; |
fa4b55a1 SC |
1353 | DEXIT("hms_clear_breakpoint()"); |
1354 | } | |
1355 | static void | |
1356 | hms_mourn() | |
1357 | { | |
1358 | DENTER("hms_mourn()"); | |
1359 | hms_clear_breakpoints(); | |
fa4b55a1 SC |
1360 | generic_mourn_inferior (); |
1361 | DEXIT("hms_mourn()"); | |
1362 | } | |
1363 | ||
fa4b55a1 SC |
1364 | |
1365 | ||
1366 | /* Put a command string, in args, out to the hms. The hms is assumed to | |
ae0ea72e | 1367 | be in raw mode, all writing/reading done through desc. |
fa4b55a1 SC |
1368 | Ouput from the hms is placed on the users terminal until the |
1369 | prompt from the hms is seen. | |
1370 | FIXME: Can't handle commands that take input. */ | |
1371 | ||
1372 | void | |
1373 | hms_com (args, fromtty) | |
1374 | char *args; | |
1375 | int fromtty; | |
1376 | { | |
1377 | check_open(); | |
1378 | ||
1379 | if (!args) return; | |
1380 | ||
1381 | /* Clear all input so only command relative output is displayed */ | |
1382 | ||
fa4b55a1 SC |
1383 | hms_write_cr(args); |
1384 | hms_write("\030",1); | |
1385 | expect_prompt(); | |
fa4b55a1 SC |
1386 | } |
1387 | ||
1388 | /* Define the target subroutine names */ | |
1389 | ||
1390 | struct target_ops hms_ops = { | |
1391 | "hms", "Remote HMS monitor", | |
1392 | "Use the H8 evaluation board running the HMS monitor connected\n\ | |
1393 | by a serial line.", | |
1394 | ||
1395 | hms_open, hms_close, | |
1396 | hms_attach, hms_detach, hms_resume, hms_wait, | |
1397 | hms_fetch_register, hms_store_register, | |
a03d4f8e | 1398 | hms_prepare_to_store, |
fa4b55a1 SC |
1399 | hms_xfer_inferior_memory, |
1400 | hms_files_info, | |
1401 | hms_insert_breakpoint, hms_remove_breakpoint, /* Breakpoints */ | |
1402 | 0, 0, 0, 0, 0, /* Terminal handling */ | |
1403 | hms_kill, /* FIXME, kill */ | |
1404 | hms_load, | |
fa4b55a1 SC |
1405 | 0, /* lookup_symbol */ |
1406 | hms_create_inferior, /* create_inferior */ | |
1407 | hms_mourn, /* mourn_inferior FIXME */ | |
1408 | process_stratum, 0, /* next */ | |
1409 | 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */ | |
1410 | 0,0, /* Section pointers */ | |
1411 | OPS_MAGIC, /* Always the last thing */ | |
1412 | }; | |
1413 | ||
1414 | ||
1415 | hms_quiet() | |
1416 | { | |
ae0ea72e SC |
1417 | quiet = ! quiet; |
1418 | if (quiet) | |
1419 | printf_filtered("Snoop disabled\n"); | |
1420 | else | |
1421 | printf_filtered("Snoop enabled\n"); | |
1422 | ||
fa4b55a1 SC |
1423 | } |
1424 | ||
1425 | hms_device(s) | |
1426 | char *s; | |
1427 | { | |
ae0ea72e SC |
1428 | if (s) |
1429 | { | |
1430 | dev_name = get_word(&s); | |
1431 | } | |
fa4b55a1 SC |
1432 | } |
1433 | ||
ae0ea72e | 1434 | |
96743d3c SC |
1435 | static |
1436 | hms_speed(s) | |
fa4b55a1 SC |
1437 | char *s; |
1438 | { | |
ae0ea72e | 1439 | check_open(); |
96743d3c | 1440 | |
fa4b55a1 SC |
1441 | if (s) |
1442 | { | |
1443 | char buffer[100]; | |
1444 | int newrate = atoi(s); | |
1445 | int which = 0; | |
ae0ea72e | 1446 | if (!serial_setbaudrate(newrate)) |
fa4b55a1 | 1447 | error("Can't use %d baud\n", newrate); |
fa4b55a1 | 1448 | |
fa4b55a1 | 1449 | printf_filtered("Checking target is in sync\n"); |
fa4b55a1 SC |
1450 | |
1451 | get_baudrate_right(); | |
1452 | baudrate = newrate; | |
1453 | printf_filtered("Sending commands to set target to %d\n", | |
1454 | baudrate); | |
1455 | ||
1456 | sprintf(buffer, "tm %d. N 8 1", baudrate); | |
96743d3c | 1457 | hms_write_cr(buffer); |
fa4b55a1 SC |
1458 | } |
1459 | } | |
1460 | ||
1461 | /***********************************************************************/ | |
1462 | ||
1463 | void | |
1464 | _initialize_remote_hms () | |
1465 | { | |
1466 | add_target (&hms_ops); | |
1467 | add_com ("hms <command>", class_obscure, hms_com, | |
1468 | "Send a command to the HMS monitor."); | |
1469 | add_com ("snoop", class_obscure, hms_quiet, | |
1470 | "Show what commands are going to the monitor"); | |
ae0ea72e | 1471 | |
fa4b55a1 SC |
1472 | add_com ("device", class_obscure, hms_device, |
1473 | "Set the terminal line for HMS communications"); | |
1474 | ||
1475 | add_com ("speed", class_obscure, hms_speed, | |
1476 | "Set the terminal line speed for HMS communications"); | |
1477 | ||
ae0ea72e | 1478 | dev_name = serial_default_name(); |
fa4b55a1 SC |
1479 | } |
1480 | ||
1481 |