Commit | Line | Data |
---|---|---|
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 SC |
237 | static char *dev_name = "/dev/ttya"; |
238 | ||
239 | ||
1f46923f | 240 | |
fa4b55a1 SC |
241 | |
242 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that | |
243 | hms_open knows that we don't have a file open when the program | |
244 | starts. */ | |
245 | int hms_desc = -1; | |
246 | #define OPEN(x) ((x) >= 0) | |
247 | ||
248 | ||
1f46923f SC |
249 | void hms_open(); |
250 | ||
fa4b55a1 SC |
251 | #define ON 1 |
252 | #define OFF 0 | |
253 | static void | |
254 | rawmode(desc, turnon) | |
255 | int desc; | |
256 | int turnon; | |
257 | { | |
258 | TERMINAL sg; | |
259 | ||
260 | if (desc < 0) | |
261 | return; | |
262 | ||
263 | ioctl (desc, TIOCGETP, &sg); | |
264 | ||
265 | if (turnon) { | |
266 | #ifdef HAVE_TERMIO | |
267 | sg.c_lflag &= ~(ICANON); | |
268 | #else | |
269 | sg.sg_flags |= RAW; | |
270 | #endif | |
271 | } else { | |
272 | #ifdef HAVE_TERMIO | |
273 | sg.c_lflag |= ICANON; | |
274 | #else | |
275 | sg.sg_flags &= ~(RAW); | |
276 | #endif | |
277 | } | |
278 | ioctl (desc, TIOCSETP, &sg); | |
279 | } | |
280 | ||
1f46923f SC |
281 | |
282 | /* Read a character from the remote system, doing all the fancy | |
283 | timeout stuff. */ | |
284 | static int | |
285 | readchar () | |
fa4b55a1 | 286 | { |
1f46923f | 287 | char buf; |
fa4b55a1 | 288 | |
1f46923f | 289 | buf = '\0'; |
fa4b55a1 SC |
290 | #ifdef HAVE_TERMIO |
291 | /* termio does the timeout for us. */ | |
1f46923f | 292 | read (hms_desc, &buf, 1); |
fa4b55a1 SC |
293 | #else |
294 | alarm (timeout); | |
1f46923f SC |
295 | if (read (hms_desc, &buf, 1) < 0) |
296 | { | |
297 | if (errno == EINTR) | |
298 | error ("Timeout reading from remote system."); | |
299 | else | |
300 | perror_with_name ("remote"); | |
301 | } | |
fa4b55a1 SC |
302 | alarm (0); |
303 | #endif | |
1f46923f SC |
304 | |
305 | if (buf == '\0') | |
306 | error ("Timeout reading from remote system."); | |
307 | ||
308 | if (!quiet) | |
309 | printf("%c",buf); | |
310 | ||
311 | return buf & 0x7f; | |
fa4b55a1 SC |
312 | } |
313 | ||
fa4b55a1 | 314 | static int |
1f46923f | 315 | readchar_nofail () |
fa4b55a1 SC |
316 | { |
317 | char buf; | |
318 | ||
319 | buf = '\0'; | |
320 | #ifdef HAVE_TERMIO | |
321 | /* termio does the timeout for us. */ | |
322 | read (hms_desc, &buf, 1); | |
323 | #else | |
324 | alarm (timeout); | |
325 | if (read (hms_desc, &buf, 1) < 0) | |
1f46923f SC |
326 | { |
327 | return 0; | |
328 | } | |
fa4b55a1 SC |
329 | alarm (0); |
330 | #endif | |
331 | ||
1f46923f SC |
332 | if (buf == '\0') |
333 | { | |
334 | return 0; | |
335 | } | |
fa4b55a1 SC |
336 | return buf & 0x7f; |
337 | } | |
338 | ||
339 | /* Keep discarding input from the remote system, until STRING is found. | |
340 | Let the user break out immediately. */ | |
341 | static void | |
342 | expect (string) | |
343 | char *string; | |
344 | { | |
345 | char *p = string; | |
346 | ||
347 | ||
348 | immediate_quit = 1; | |
349 | while (1) | |
350 | { | |
351 | if (readchar() == *p) | |
352 | { | |
353 | p++; | |
354 | if (*p == '\0') | |
355 | { | |
356 | immediate_quit = 0; | |
357 | return; | |
358 | } | |
359 | } | |
360 | else | |
361 | p = string; | |
362 | } | |
363 | } | |
364 | ||
365 | /* Keep discarding input until we see the hms prompt. | |
366 | ||
367 | The convention for dealing with the prompt is that you | |
368 | o give your command | |
369 | o *then* wait for the prompt. | |
370 | ||
371 | Thus the last thing that a procedure does with the serial line | |
372 | will be an expect_prompt(). Exception: hms_resume does not | |
373 | wait for the prompt, because the terminal is being handed over | |
374 | to the inferior. However, the next thing which happens after that | |
375 | is a hms_wait which does wait for the prompt. | |
376 | Note that this includes abnormal exit, e.g. error(). This is | |
377 | necessary to prevent getting into states from which we can't | |
378 | recover. */ | |
379 | static void | |
380 | expect_prompt () | |
381 | { | |
382 | ||
383 | expect ("HMS>"); | |
384 | } | |
385 | ||
386 | /* Get a hex digit from the remote system & return its value. | |
387 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ | |
388 | static int | |
389 | get_hex_digit (ignore_space) | |
390 | int ignore_space; | |
391 | { | |
392 | int ch; | |
393 | while (1) | |
394 | { | |
395 | ch = readchar (); | |
396 | if (ch >= '0' && ch <= '9') | |
397 | return ch - '0'; | |
398 | else if (ch >= 'A' && ch <= 'F') | |
399 | return ch - 'A' + 10; | |
400 | else if (ch >= 'a' && ch <= 'f') | |
401 | return ch - 'a' + 10; | |
402 | else if (ch == ' ' && ignore_space) | |
403 | ; | |
404 | else | |
405 | { | |
406 | expect_prompt (); | |
407 | error ("Invalid hex digit from remote system."); | |
408 | } | |
409 | } | |
410 | } | |
411 | ||
412 | /* Get a byte from hms_desc and put it in *BYT. Accept any number | |
413 | leading spaces. */ | |
414 | static void | |
415 | get_hex_byte (byt) | |
416 | char *byt; | |
417 | { | |
418 | int val; | |
419 | ||
420 | val = get_hex_digit (1) << 4; | |
421 | val |= get_hex_digit (0); | |
422 | *byt = val; | |
423 | } | |
424 | ||
425 | /* Read a 32-bit hex word from the hms, preceded by a space */ | |
426 | static long | |
427 | get_hex_word() | |
428 | { | |
429 | long val; | |
430 | int j; | |
431 | ||
432 | val = 0; | |
433 | for (j = 0; j < 8; j++) | |
434 | val = (val << 4) + get_hex_digit (j == 0); | |
435 | return val; | |
436 | } | |
437 | /* Called when SIGALRM signal sent due to alarm() timeout. */ | |
438 | #ifndef HAVE_TERMIO | |
439 | ||
440 | #ifndef __STDC__ | |
441 | # ifndef volatile | |
442 | # define volatile /**/ | |
443 | # endif | |
444 | #endif | |
445 | volatile int n_alarms; | |
446 | ||
447 | void | |
448 | hms_timer () | |
449 | { | |
fa4b55a1 SC |
450 | n_alarms++; |
451 | } | |
452 | #endif | |
453 | ||
fa4b55a1 SC |
454 | |
455 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
456 | NEED_ARTIFICIAL_TRAP calls to hms_wait should just return | |
457 | SIGTRAP without actually waiting for anything. */ | |
458 | ||
459 | static int need_artificial_trap = 0; | |
460 | ||
461 | void | |
462 | hms_kill(arg,from_tty) | |
463 | char *arg; | |
464 | int from_tty; | |
465 | { | |
fa4b55a1 | 466 | |
fa4b55a1 | 467 | } |
1f46923f SC |
468 | |
469 | static check_open() | |
470 | { | |
471 | if (!OPEN(hms_desc)) { | |
472 | hms_open("",0); | |
473 | } | |
474 | } | |
475 | ||
fa4b55a1 SC |
476 | /* |
477 | * Download a file specified in 'args', to the hms. | |
478 | */ | |
479 | static void | |
480 | hms_load(args,fromtty) | |
481 | char *args; | |
482 | int fromtty; | |
483 | { | |
484 | bfd *abfd; | |
485 | asection *s; | |
486 | int n; | |
487 | char buffer[1024]; | |
488 | ||
489 | DENTER("hms_load()"); | |
1f46923f SC |
490 | check_open(); |
491 | ||
492 | dcache_flush(); | |
493 | inferior_pid = 0; | |
fa4b55a1 SC |
494 | abfd = bfd_openr(args,"coff-h8300"); |
495 | if (!abfd) | |
496 | { | |
1f46923f | 497 | printf_filtered("Unable to open file %s\n", args); |
fa4b55a1 SC |
498 | return; |
499 | } | |
500 | ||
501 | if (bfd_check_format(abfd, bfd_object) ==0) | |
502 | { | |
503 | printf_filtered("File is not an object file\n"); | |
504 | return ; | |
505 | } | |
506 | ||
507 | s = abfd->sections; | |
508 | while (s != (asection *)NULL) | |
509 | { | |
510 | if (s->flags & SEC_LOAD) | |
511 | { | |
96743d3c | 512 | int i; |
fa4b55a1 | 513 | |
96743d3c SC |
514 | |
515 | #define DELTA 2048 | |
516 | char *buffer = xmalloc(DELTA); | |
517 | printf_filtered("%s: %4x .. %4x ",s->name, s->vma, s->vma + s->_raw_size); | |
518 | for (i = 0; i < s->_raw_size; i+= DELTA) | |
519 | { | |
520 | int delta = DELTA; | |
521 | if (delta > s->_raw_size - i) | |
522 | delta = s->_raw_size - i ; | |
523 | ||
524 | bfd_get_section_contents(abfd, s, buffer, i, delta); | |
525 | hms_write_inferior_memory(s->vma + i, buffer, delta); | |
526 | printf_filtered("*"); | |
527 | fflush(stdout); | |
528 | } | |
529 | printf_filtered( "\n"); | |
fa4b55a1 SC |
530 | free(buffer); |
531 | } | |
532 | s = s->next; | |
533 | } | |
96743d3c | 534 | |
fa4b55a1 SC |
535 | |
536 | DEXIT("hms_load()"); | |
537 | } | |
538 | ||
539 | /* This is called not only when we first attach, but also when the | |
540 | user types "run" after having attached. */ | |
541 | void | |
542 | hms_create_inferior (execfile, args, env) | |
543 | char *execfile; | |
544 | char *args; | |
545 | char **env; | |
546 | { | |
547 | int entry_pt; | |
548 | ||
549 | DENTER("hms_create_inferior()"); | |
550 | ||
551 | if (args && *args) | |
552 | error ("Can't pass arguments to remote hms process."); | |
553 | ||
554 | if (execfile == 0 || exec_bfd == 0) | |
555 | error ("No exec file specified"); | |
556 | ||
557 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
1f46923f SC |
558 | check_open(); |
559 | ||
fa4b55a1 SC |
560 | if (OPEN(hms_desc)) |
561 | { | |
96743d3c | 562 | char buffer[100]; |
fa4b55a1 SC |
563 | hms_kill(NULL,NULL); |
564 | hms_clear_breakpoints(); | |
565 | init_wait_for_inferior (); | |
566 | /* Clear the input because what the hms sends back is different | |
567 | * depending on whether it was running or not. | |
568 | */ | |
96743d3c SC |
569 | /*sprintf(buffer,"g %x", entry_pt); |
570 | ||
571 | hms_write_cr(buffer); | |
572 | */ | |
573 | hms_write_cr(""); | |
1f46923f | 574 | |
fa4b55a1 | 575 | expect_prompt(); |
fa4b55a1 SC |
576 | |
577 | ||
578 | insert_breakpoints (); /* Needed to get correct instruction in cache */ | |
579 | proceed(entry_pt, -1, 0); | |
580 | ||
581 | ||
1f46923f | 582 | } |
fa4b55a1 SC |
583 | DEXIT("hms_create_inferior()"); |
584 | } | |
585 | ||
586 | /* Translate baud rates from integers to damn B_codes. Unix should | |
587 | have outgrown this crap years ago, but even POSIX wouldn't buck it. */ | |
588 | ||
589 | #ifndef B19200 | |
590 | #define B19200 EXTA | |
591 | #endif | |
592 | #ifndef B38400 | |
593 | #define B38400 EXTB | |
594 | #endif | |
595 | ||
596 | static struct {int rate, damn_b;} baudtab[] = { | |
1f46923f SC |
597 | {9600, B9600}, |
598 | {19200, B19200}, | |
fa4b55a1 | 599 | {300, B300}, |
fa4b55a1 | 600 | {1200, B1200}, |
fa4b55a1 SC |
601 | {2400, B2400}, |
602 | {4800, B4800}, | |
fa4b55a1 SC |
603 | {-1, -1}, |
604 | }; | |
605 | ||
606 | static int damn_b (rate) | |
607 | int rate; | |
608 | { | |
609 | int i; | |
610 | ||
611 | for (i = 0; baudtab[i].rate != -1; i++) | |
612 | if (rate == baudtab[i].rate) return baudtab[i].damn_b; | |
1f46923f | 613 | return B19200; |
fa4b55a1 SC |
614 | } |
615 | ||
616 | ||
617 | /* Open a connection to a remote debugger. | |
618 | NAME is the filename used for communication, then a space, | |
619 | then the baud rate. | |
620 | */ | |
621 | ||
622 | static char * | |
623 | find_end_of_word(s) | |
624 | char *s; | |
625 | { | |
626 | while (*s && !isspace(*s)) | |
627 | s++; | |
628 | return s; | |
629 | } | |
630 | ||
631 | static char *get_word(p) | |
632 | char **p; | |
633 | { | |
634 | char *s = *p; | |
635 | char *word ; | |
636 | char *copy; | |
637 | size_t len; | |
638 | ||
639 | while (isspace(*s)) | |
640 | s++; | |
641 | ||
642 | word = s; | |
643 | ||
644 | len = 0; | |
645 | ||
646 | while (*s && !isspace(*s)) | |
647 | { | |
648 | s++; | |
649 | len++; | |
650 | ||
651 | } | |
652 | copy = xmalloc(len+1); | |
653 | memcpy(copy, word, len); | |
654 | copy[len] = 0; | |
655 | *p = s; | |
656 | return copy; | |
657 | } | |
658 | ||
659 | static int baudrate = 9600; | |
1f46923f SC |
660 | |
661 | static int | |
662 | is_baudrate_right() | |
663 | { | |
664 | ||
665 | ||
666 | /* Put this port into NORMAL mode, send the 'normal' character */ | |
667 | hms_write("\001", 1); /* Control A */ | |
668 | hms_write("\r", 1); /* Cr */ | |
669 | ||
670 | while ( readchar_nofail()) /* Skip noise we put there */ | |
671 | ; | |
672 | ||
673 | hms_write("r"); | |
674 | if (readchar_nofail() == 'r') | |
675 | return 1; | |
676 | ||
677 | /* Not the right baudrate, or the board's not on */ | |
678 | return 0; | |
679 | ||
680 | ||
681 | } | |
682 | static void | |
683 | set_rate() | |
684 | { | |
685 | TERMINAL sg; | |
686 | ioctl (hms_desc, TIOCGETP, &sg); | |
687 | #ifdef HAVE_TERMIO | |
688 | sg.c_cc[VMIN] = 0; /* read with timeout. */ | |
689 | sg.c_cc[VTIME] = timeout * 10; | |
690 | sg.c_lflag &= ~(ICANON | ECHO); | |
691 | sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate); | |
692 | #else | |
693 | sg.sg_ispeed = damn_b (baudrate); | |
694 | sg.sg_ospeed = damn_b (baudrate); | |
695 | sg.sg_flags |= RAW | ANYP; | |
696 | sg.sg_flags &= ~ECHO; | |
697 | #endif | |
698 | ||
699 | ioctl (hms_desc, TIOCSETP, &sg); | |
96743d3c | 700 | |
1f46923f SC |
701 | } |
702 | ||
703 | static void | |
704 | get_baudrate_right() | |
705 | { | |
706 | ||
707 | int which_rate = 0; | |
708 | ||
709 | while (!is_baudrate_right()) | |
710 | { | |
96743d3c SC |
711 | which_rate++; |
712 | ||
1f46923f SC |
713 | if (baudtab[which_rate].rate == -1) |
714 | { | |
715 | which_rate = 0; | |
716 | } | |
96743d3c | 717 | |
1f46923f SC |
718 | |
719 | baudrate = baudtab[which_rate].rate; | |
720 | printf_filtered("Board not responding, trying %d baud\n",baudrate); | |
721 | QUIT; | |
722 | set_rate(); | |
723 | } | |
724 | } | |
725 | ||
fa4b55a1 SC |
726 | static void |
727 | hms_open (name, from_tty) | |
728 | char *name; | |
729 | int from_tty; | |
730 | { | |
1f46923f | 731 | |
fa4b55a1 SC |
732 | unsigned int prl; |
733 | char *p; | |
734 | ||
735 | DENTER("hms_open()"); | |
736 | if(name == 0) | |
737 | { | |
738 | name = ""; | |
739 | ||
740 | } | |
741 | ||
fa4b55a1 SC |
742 | hms_close (0); |
743 | ||
744 | hms_desc = open (dev_name, O_RDWR); | |
745 | if (hms_desc < 0) | |
746 | perror_with_name (dev_name); | |
fa4b55a1 | 747 | |
1f46923f SC |
748 | set_rate(); |
749 | ||
750 | dcache_init(); | |
fa4b55a1 SC |
751 | |
752 | ||
fa4b55a1 SC |
753 | /* start_remote (); /* Initialize gdb process mechanisms */ |
754 | ||
755 | ||
756 | #ifndef HAVE_TERMIO | |
757 | #ifndef NO_SIGINTERRUPT | |
758 | /* Cause SIGALRM's to make reads fail with EINTR instead of resuming | |
759 | the read. */ | |
760 | if (siginterrupt (SIGALRM, 1) != 0) | |
761 | perror ("hms_open: error in siginterrupt"); | |
762 | #endif | |
763 | ||
764 | /* Set up read timeout timer. */ | |
765 | if ((void (*)) signal (SIGALRM, hms_timer) == (void (*)) -1) | |
766 | perror ("hms_open: error in signal"); | |
767 | #endif | |
768 | ||
1f46923f | 769 | get_baudrate_right(); |
fa4b55a1 SC |
770 | |
771 | /* Hello? Are you there? */ | |
772 | write (hms_desc, "\r", 1); | |
773 | ||
774 | expect_prompt (); | |
775 | ||
776 | /* Clear any break points */ | |
777 | hms_clear_breakpoints(); | |
778 | ||
779 | ||
1f46923f | 780 | printf_filtered("Remote debugging on an H8/300 HMS via %s.\n",dev_name); |
fa4b55a1 SC |
781 | |
782 | DEXIT("hms_open()"); | |
783 | } | |
784 | ||
785 | /* Close out all files and local state before this target loses control. */ | |
786 | ||
787 | static void | |
788 | hms_close (quitting) | |
789 | int quitting; | |
790 | { | |
791 | ||
792 | DENTER("hms_close()"); | |
793 | ||
794 | /* Clear any break points */ | |
795 | hms_clear_breakpoints(); | |
796 | ||
797 | /* Put this port back into REMOTE mode */ | |
798 | if (OPEN(hms_desc)) { | |
799 | ||
800 | sleep(1); /* Let any output make it all the way back */ | |
801 | write(hms_desc, "R\r", 2); | |
802 | } | |
803 | ||
804 | /* Due to a bug in Unix, fclose closes not only the stdio stream, | |
805 | but also the file descriptor. So we don't actually close | |
806 | hms_desc. */ | |
807 | if (OPEN(hms_desc)) | |
808 | close (hms_desc); | |
809 | ||
810 | /* Do not try to close hms_desc again, later in the program. */ | |
811 | ||
812 | hms_desc = -1; | |
813 | ||
814 | DEXIT("hms_close()"); | |
815 | } | |
816 | ||
817 | /* Attach to the target that is already loaded and possibly running */ | |
818 | static void | |
819 | hms_attach (args, from_tty) | |
820 | char *args; | |
821 | int from_tty; | |
822 | { | |
823 | ||
824 | DENTER("hms_attach()"); | |
fa4b55a1 SC |
825 | |
826 | /* push_target(&hms_ops); /* This done in hms_open() */ | |
827 | ||
828 | mark_breakpoints_out (); | |
829 | ||
830 | /* Send the hms a kill. It is ok if it is not already running */ | |
831 | #if 0 | |
832 | fprintf(hms_stream, "K\r"); | |
833 | expect_prompt(); /* Slurp the echo */ | |
834 | #endif | |
835 | /* We will get a task spawn event immediately. */ | |
836 | init_wait_for_inferior (); | |
837 | clear_proceed_status (); | |
838 | stop_soon_quietly = 1; | |
839 | wait_for_inferior (); | |
840 | stop_soon_quietly = 0; | |
841 | normal_stop (); | |
842 | DEXIT("hms_attach()"); | |
843 | } | |
844 | ||
845 | ||
846 | /* Terminate the open connection to the remote debugger. | |
847 | Use this when you want to detach and do something else | |
848 | with your gdb. */ | |
849 | void | |
850 | hms_detach (args,from_tty) | |
851 | char *args; | |
852 | int from_tty; | |
853 | { | |
854 | DENTER("hms_detach()"); | |
855 | if (OPEN(hms_desc)) { /* Send it on its way (tell it to continue) */ | |
856 | hms_clear_breakpoints(); | |
857 | #if 0 | |
858 | fprintf(hms_stream,"G\r"); | |
859 | #endif | |
860 | } | |
861 | ||
862 | pop_target(); /* calls hms_close to do the real work */ | |
863 | if (from_tty) | |
864 | printf_filtered ("Ending remote %s debugging\n", target_shortname); | |
865 | DEXIT("hms_detach()"); | |
866 | } | |
867 | ||
868 | /* Tell the remote machine to resume. */ | |
869 | ||
870 | void | |
871 | hms_resume (step, sig) | |
872 | int step, sig; | |
873 | { | |
874 | DENTER("hms_resume()"); | |
1f46923f SC |
875 | dcache_flush(); |
876 | ||
fa4b55a1 SC |
877 | if (step) |
878 | { | |
879 | hms_write_cr("s"); | |
96743d3c SC |
880 | expect("Step>"); |
881 | ||
fa4b55a1 SC |
882 | /* Force the next hms_wait to return a trap. Not doing anything |
883 | about I/O from the target means that the user has to type | |
884 | "continue" to see any. FIXME, this should be fixed. */ | |
885 | need_artificial_trap = 1; | |
886 | } | |
887 | else | |
888 | { | |
889 | hms_write_cr("g"); | |
96743d3c | 890 | expect("g"); |
fa4b55a1 SC |
891 | } |
892 | DEXIT("hms_resume()"); | |
893 | } | |
894 | ||
895 | /* Wait until the remote machine stops, then return, | |
896 | storing status in STATUS just as `wait' would. */ | |
897 | ||
898 | int | |
899 | hms_wait (status) | |
900 | WAITTYPE *status; | |
901 | { | |
902 | /* Strings to look for. '?' means match any single character. | |
903 | Note that with the algorithm we use, the initial character | |
904 | of the string cannot recur in the string, or we will not | |
905 | find some cases of the string in the input. */ | |
906 | ||
96743d3c | 907 | static char bpt[] = "At breakpoint:"; |
fa4b55a1 SC |
908 | /* It would be tempting to look for "\n[__exit + 0x8]\n" |
909 | but that requires loading symbols with "yc i" and even if | |
910 | we did do that we don't know that the file has symbols. */ | |
911 | static char exitmsg[] = "HMS>"; | |
912 | char *bp = bpt; | |
913 | char *ep = exitmsg; | |
914 | ||
915 | /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */ | |
916 | char swallowed[50]; | |
917 | /* Current position in swallowed. */ | |
918 | char *swallowed_p = swallowed; | |
919 | ||
920 | int ch; | |
921 | int ch_handled; | |
922 | int old_timeout = timeout; | |
923 | int old_immediate_quit = immediate_quit; | |
1f46923f SC |
924 | int swallowed_cr = 0; |
925 | ||
fa4b55a1 SC |
926 | DENTER("hms_wait()"); |
927 | ||
928 | WSETEXIT ((*status), 0); | |
929 | ||
930 | if (need_artificial_trap != 0) | |
1f46923f SC |
931 | { |
932 | WSETSTOP ((*status), SIGTRAP); | |
933 | need_artificial_trap--; | |
934 | return 0; | |
935 | } | |
fa4b55a1 | 936 | |
1f46923f SC |
937 | timeout = 0; /* Don't time out -- user program is running. */ |
938 | immediate_quit = 1; /* Helps ability to QUIT */ | |
96743d3c SC |
939 | while (1) |
940 | { | |
941 | QUIT; /* Let user quit and leave process running */ | |
942 | ch_handled = 0; | |
943 | ch = readchar (); | |
944 | if (ch == *bp) | |
945 | { | |
946 | bp++; | |
947 | if (*bp == '\0') | |
948 | break; | |
949 | ch_handled = 1; | |
950 | ||
951 | *swallowed_p++ = ch; | |
952 | } | |
953 | else | |
954 | { | |
955 | bp = bpt; | |
956 | } | |
957 | if (ch == *ep || *ep == '?') | |
958 | { | |
959 | ep++; | |
960 | if (*ep == '\0') | |
961 | break; | |
962 | ||
963 | if (!ch_handled) | |
964 | *swallowed_p++ = ch; | |
965 | ch_handled = 1; | |
966 | } | |
967 | else | |
968 | { | |
969 | ep = exitmsg; | |
970 | } | |
971 | ||
972 | if (!ch_handled) { | |
973 | char *p; | |
974 | /* Print out any characters which have been swallowed. */ | |
975 | for (p = swallowed; p < swallowed_p; ++p) | |
976 | putc (*p, stdout); | |
977 | swallowed_p = swallowed; | |
fa4b55a1 SC |
978 | |
979 | ||
96743d3c SC |
980 | if ((ch != '\r' && ch != '\n') || swallowed_cr>10) |
981 | { | |
982 | putc (ch, stdout); | |
983 | swallowed_cr = 10; | |
fa4b55a1 | 984 | } |
96743d3c SC |
985 | swallowed_cr ++; |
986 | ||
987 | } | |
988 | } | |
fa4b55a1 SC |
989 | if (*bp== '\0') |
990 | { | |
991 | WSETSTOP ((*status), SIGTRAP); | |
992 | expect_prompt(); | |
993 | } | |
994 | else | |
995 | { | |
996 | WSETEXIT ((*status), 0); | |
997 | } | |
998 | ||
999 | timeout = old_timeout; | |
1000 | immediate_quit = old_immediate_quit; | |
fa4b55a1 SC |
1001 | DEXIT("hms_wait()"); |
1002 | return 0; | |
1003 | } | |
1004 | ||
1005 | /* Return the name of register number REGNO | |
1006 | in the form input and output by hms. | |
1007 | ||
1008 | Returns a pointer to a static buffer containing the answer. */ | |
1009 | static char * | |
1010 | get_reg_name (regno) | |
1011 | int regno; | |
1012 | { | |
1013 | static char *rn[NUM_REGS]= REGISTER_NAMES; | |
1014 | ||
1015 | ||
1016 | return rn[regno]; | |
1017 | ||
1018 | } | |
1019 | ||
1020 | /* Read the remote registers. */ | |
1021 | static int gethex(length, start, ok) | |
1022 | unsigned int length; | |
1023 | char *start; | |
1024 | int *ok; | |
1025 | { | |
1026 | int result = 0; | |
1027 | while (length--) | |
1028 | { | |
1029 | result <<= 4 ; | |
1030 | if (*start >='a' && *start <= 'f') | |
1031 | { | |
1032 | result += *start - 'a' + 10; | |
1033 | } | |
1034 | else if (*start >='A' && *start <= 'F') | |
1035 | { | |
1036 | result += *start - 'A' + 10; | |
1037 | } | |
1038 | else if (*start >='0' && *start <= '9') | |
1039 | { | |
1040 | result += *start - '0' ; | |
1041 | } | |
1042 | else *ok = 0; | |
1043 | start++; | |
1044 | ||
1045 | } | |
1046 | return result; | |
1047 | } | |
1048 | static int | |
1049 | timed_read(buf, n, timeout) | |
1050 | char *buf; | |
1051 | ||
1052 | { | |
1053 | int i; | |
1054 | char c; | |
1055 | i = 0; | |
1056 | while (i < n) | |
1057 | { | |
1058 | c = readchar(); | |
1059 | ||
1060 | if (c == 0) return i; | |
1061 | buf[i] = c; | |
1062 | i++; | |
1063 | ||
1064 | } | |
1065 | return i; | |
1066 | ||
1067 | } | |
1068 | hms_write(a,l) | |
1069 | char *a; | |
1070 | { | |
1071 | int i; | |
1072 | write(hms_desc,a,l); | |
96743d3c SC |
1073 | if (!quiet) |
1074 | for (i = 0; i < l ; i++) | |
1075 | { | |
1076 | printf("%c", a[i]); | |
1077 | } | |
fa4b55a1 SC |
1078 | } |
1079 | ||
1f46923f SC |
1080 | hms_write_cr(s) |
1081 | char *s; | |
fa4b55a1 SC |
1082 | { |
1083 | hms_write( s, strlen(s)); | |
1f46923f SC |
1084 | hms_write("\r",1); |
1085 | } | |
1086 | ||
1087 | static void | |
1088 | hms_fetch_registers () | |
fa4b55a1 SC |
1089 | { |
1090 | #define REGREPLY_SIZE 79 | |
1091 | char linebuf[REGREPLY_SIZE+1]; | |
1092 | int i; | |
1093 | int s ; | |
1094 | int gottok; | |
1095 | ||
1f46923f SC |
1096 | REGISTER_TYPE reg[NUM_REGS]; |
1097 | int foo[8]; | |
fa4b55a1 SC |
1098 | check_open(); |
1099 | ||
1100 | do | |
1101 | { | |
1102 | ||
1103 | hms_write_cr("r"); | |
1104 | s = timed_read(linebuf, REGREPLY_SIZE, 1); | |
1105 | ||
1106 | ||
1107 | linebuf[REGREPLY_SIZE] = 0; | |
1108 | gottok = 0; | |
1109 | if (linebuf[0] == 'r' && | |
fa4b55a1 SC |
1110 | linebuf[3] == 'P' && |
1111 | linebuf[4] == 'C' && | |
1112 | linebuf[5] == '=' && | |
1113 | linebuf[75] == 'H' && | |
1114 | linebuf[76] == 'M' && | |
1115 | linebuf[77] == 'S') | |
1116 | { | |
1117 | /* | |
1118 | PC=XXXX CCR=XX:XXXXXXXX R0-R7= XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX | |
1119 | 5436789012345678901234567890123456789012345678901234567890123456789012 | |
1120 | 0 1 2 3 4 5 6 | |
1121 | */ | |
1122 | gottok = 1; | |
1123 | ||
1124 | reg[PC_REGNUM] = gethex(4,linebuf+6, &gottok); | |
1125 | reg[CCR_REGNUM] = gethex(2,linebuf+15, &gottok); | |
1126 | for (i = 0; i < 8; i++) | |
1127 | { | |
1128 | reg[i] = gethex(4, linebuf+34+5*i, &gottok); | |
1129 | } | |
1130 | } | |
1131 | } | |
1132 | while (!gottok); | |
1133 | for (i = 0; i < NUM_REGS; i++) | |
1134 | { | |
1135 | supply_register (i, reg+i); | |
1136 | } | |
1137 | } | |
1138 | ||
1139 | /* Fetch register REGNO, or all registers if REGNO is -1. | |
1140 | */ | |
1141 | static void | |
1142 | hms_fetch_register (regno) | |
1143 | int regno; | |
1144 | { | |
1145 | ||
1146 | hms_fetch_registers (); | |
1147 | ||
1148 | } | |
1149 | ||
1150 | /* Store the remote registers from the contents of the block REGS. */ | |
1151 | ||
1152 | static int | |
1153 | hms_store_registers () | |
1154 | { | |
1155 | int i; | |
1156 | for (i = 0; i < NUM_REGS; i++) | |
1157 | hms_store_register(i); | |
1158 | return 0; | |
1159 | ||
1160 | } | |
1161 | ||
1162 | /* Store register REGNO, or all if REGNO == -1. | |
1163 | Return errno value. */ | |
1164 | int | |
1165 | hms_store_register (regno) | |
1166 | int regno; | |
1167 | { | |
1168 | ||
1f46923f | 1169 | /* printf("hms_store_register() called.\n"); fflush(stdout); /* */ |
fa4b55a1 SC |
1170 | if (regno == -1) |
1171 | hms_store_registers (); | |
1172 | else | |
1173 | { | |
1174 | char *name = get_reg_name (regno); | |
1175 | char buffer[100]; | |
1176 | sprintf(buffer,"r %s=%x", name, read_register(regno)); | |
1177 | hms_write_cr(buffer); | |
1178 | expect_prompt(); | |
1179 | } | |
1180 | ||
1181 | DEXIT("hms_store_registers()"); | |
1182 | return 0; | |
1183 | } | |
1184 | ||
1185 | /* Get ready to modify the registers array. On machines which store | |
1186 | individual registers, this doesn't need to do anything. On machines | |
1187 | which store all the registers in one fell swoop, this makes sure | |
1188 | that registers contains all the registers from the program being | |
1189 | debugged. */ | |
1190 | ||
1191 | void | |
1192 | hms_prepare_to_store () | |
1193 | { | |
1194 | /* Do nothing, since we can store individual regs */ | |
1195 | } | |
1196 | ||
1197 | static CORE_ADDR | |
1198 | translate_addr(addr) | |
1199 | CORE_ADDR addr; | |
1200 | { | |
1201 | ||
1202 | return(addr); | |
1203 | ||
1204 | } | |
1205 | ||
1206 | /* Read a word from remote address ADDR and return it. | |
1207 | * This goes through the data cache. | |
1208 | */ | |
1209 | int | |
1210 | hms_fetch_word (addr) | |
1211 | CORE_ADDR addr; | |
1212 | { | |
1213 | return dcache_fetch (addr); | |
1214 | } | |
1215 | ||
1216 | /* Write a word WORD into remote address ADDR. | |
1217 | This goes through the data cache. */ | |
1218 | ||
1219 | void | |
1220 | hms_store_word (addr, word) | |
1221 | CORE_ADDR addr; | |
1222 | int word; | |
1223 | { | |
1224 | dcache_poke (addr, word); | |
1225 | } | |
1226 | ||
1227 | int | |
1228 | hms_xfer_inferior_memory(memaddr, myaddr, len, write, target) | |
1229 | CORE_ADDR memaddr; | |
1230 | char *myaddr; | |
1231 | int len; | |
1232 | int write; | |
1233 | struct target_ops *target; /* ignored */ | |
1234 | { | |
1235 | register int i; | |
1236 | /* Round starting address down to longword boundary. */ | |
1237 | register CORE_ADDR addr; | |
1238 | /* Round ending address up; get number of longwords that makes. */ | |
1239 | register int count; | |
1240 | /* Allocate buffer of that many longwords. */ | |
1241 | register int *buffer ; | |
1242 | ||
1243 | memaddr &= 0xffff; | |
1244 | addr = memaddr & - sizeof (int); | |
1245 | count = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); | |
1246 | ||
1f46923f | 1247 | |
fa4b55a1 SC |
1248 | buffer = (int *)alloca (count * sizeof (int)); |
1249 | if (write) | |
1250 | { | |
1251 | /* Fill start and end extra bytes of buffer with existing memory data. */ | |
1252 | ||
1253 | if (addr != memaddr || len < (int)sizeof (int)) { | |
1254 | /* Need part of initial word -- fetch it. */ | |
1255 | buffer[0] = hms_fetch_word (addr); | |
1256 | } | |
1257 | ||
1258 | if (count > 1) /* FIXME, avoid if even boundary */ | |
1259 | { | |
1260 | buffer[count - 1] | |
1261 | = hms_fetch_word (addr + (count - 1) * sizeof (int)); | |
1262 | } | |
1263 | ||
1264 | /* Copy data to be written over corresponding part of buffer */ | |
1265 | ||
1266 | bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); | |
1267 | ||
1268 | /* Write the entire buffer. */ | |
1269 | ||
1270 | for (i = 0; i < count; i++, addr += sizeof (int)) | |
1271 | { | |
1272 | errno = 0; | |
1273 | hms_store_word (addr, buffer[i]); | |
1274 | if (errno) | |
1275 | { | |
1276 | ||
1277 | return 0; | |
1278 | } | |
1279 | ||
1280 | } | |
1281 | } | |
1282 | else | |
1283 | { | |
1284 | /* Read all the longwords */ | |
1285 | for (i = 0; i < count; i++, addr += sizeof (int)) | |
1286 | { | |
1287 | errno = 0; | |
1288 | buffer[i] = hms_fetch_word (addr); | |
1289 | if (errno) | |
1290 | { | |
1291 | return 0; | |
1292 | } | |
1293 | QUIT; | |
1294 | } | |
1295 | ||
1296 | /* Copy appropriate bytes out of the buffer. */ | |
1297 | bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); | |
1298 | } | |
1299 | ||
1300 | ||
1301 | return len; | |
1302 | } | |
1303 | ||
1304 | #if 0 | |
1305 | int | |
1306 | hms_xfer_inferior_memory (memaddr, myaddr, len, write) | |
1307 | CORE_ADDR memaddr; | |
1308 | char *myaddr; | |
1309 | int len; | |
1310 | int write; | |
1311 | { | |
1312 | memaddr &= 0xffff; | |
1313 | if (write) | |
1314 | return hms_write_inferior_memory (memaddr, myaddr, len); | |
1315 | else | |
1316 | return hms_read_inferior_memory (memaddr, myaddr, len); | |
1317 | ||
1318 | } | |
1319 | #endif | |
1320 | ||
1321 | int | |
1322 | hms_write_inferior_memory (memaddr, myaddr, len) | |
1323 | CORE_ADDR memaddr; | |
1324 | char *myaddr; | |
1325 | int len; | |
1326 | { | |
1327 | ||
1328 | bfd *abfd = bfd_openw(dev_name, "srec"); | |
1329 | asection *a; | |
1330 | ||
1331 | bfd_set_format(abfd, bfd_object); | |
1332 | a = bfd_make_section(abfd, ".text"); | |
1333 | a->vma = memaddr; | |
1334 | a->_raw_size = len; | |
1335 | a->flags = SEC_LOAD | SEC_HAS_CONTENTS; | |
1336 | hms_write_cr("tl"); /* tell hms here comes the recs */ | |
1337 | bfd_set_section_contents(abfd, a, myaddr, 0, len); | |
1338 | bfd_close(abfd); | |
1339 | ||
1340 | expect_prompt(); | |
1341 | } | |
1342 | ||
1343 | void | |
1344 | hms_files_info () | |
1345 | { | |
1346 | printf_filtered("\tAttached to %s at %d baud and running program %s\n", | |
1347 | dev_name, baudrate, bfd_get_filename(exec_bfd)); | |
1348 | printf_filtered("\ton an H8/300 processor.\n"); | |
1349 | } | |
1350 | ||
1351 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
1352 | to inferior's memory at MEMADDR. Returns errno value. | |
1353 | * sb/sh instructions don't work on unaligned addresses, when TU=1. | |
1354 | */ | |
1355 | ||
1356 | ||
1357 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result | |
1358 | at debugger address MYADDR. Returns errno value. */ | |
1359 | int | |
1360 | hms_read_inferior_memory(memaddr, myaddr, len) | |
1361 | CORE_ADDR memaddr; | |
1362 | char *myaddr; | |
1363 | int len; | |
1364 | { | |
1365 | /* Align to nearest low 16 bits */ | |
1366 | int i; | |
1367 | ||
1368 | #if 0 | |
1369 | CORE_ADDR start = memaddr & ~0xf; | |
1370 | CORE_ADDR end = ((memaddr + len +16) & ~0xf) -1; | |
1371 | #endif | |
1372 | CORE_ADDR start = memaddr; | |
1373 | CORE_ADDR end = memaddr + len -1; | |
1374 | ||
1375 | int ok =1; | |
1376 | ||
1377 | /* | |
1378 | AAAA: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX '................' | |
1379 | 012345678901234567890123456789012345678901234567890123456789012345 | |
1380 | 0 1 2 3 4 5 6 | |
1381 | */ | |
1382 | char buffer[66]; | |
1383 | if (memaddr & 0xf) abort(); | |
1384 | if (len != 16) abort(); | |
1385 | ||
96743d3c | 1386 | sprintf(buffer, "m %4x %4x", start & 0xffff, end & 0xffff); |
fa4b55a1 SC |
1387 | hms_write_cr(buffer); |
1388 | /* drop the echo and newline*/ | |
1389 | for (i = 0; i < 13; i++) | |
1390 | readchar(); | |
1391 | ||
1392 | ||
1393 | ||
1394 | /* Grab the lines as they come out and fill the area */ | |
1395 | /* Skip over cr */ | |
1396 | while(1) | |
1397 | { | |
1398 | int p; | |
1399 | int i; | |
1400 | int addr; | |
1401 | size_t idx; | |
1402 | ||
1403 | char byte[16]; | |
1404 | buffer[0] = readchar(); | |
1405 | if (buffer[0] == 'M') | |
1406 | break; | |
1407 | for (i = 1; i < 66; i++) | |
1408 | buffer[i] = readchar(); | |
1409 | ||
1410 | /* Now parse the line */ | |
1411 | ||
1412 | addr = gethex(4, buffer, &ok); | |
1413 | idx = 6; | |
1414 | for (p = 0; p < 16; p+=2) | |
1415 | { | |
1416 | byte[p] = gethex(2, buffer + idx, &ok); | |
1417 | byte[p+1] = gethex(2, buffer+ idx + 2, &ok); | |
1418 | idx+=5; | |
1419 | ||
1420 | } | |
1421 | ||
1422 | ||
1423 | for (p = 0; p<16;p++) | |
1424 | { | |
1425 | if (addr + p >= memaddr && | |
1426 | addr + p < memaddr + len) | |
1427 | { | |
1428 | myaddr[ (addr + p)-memaddr] = byte[p]; | |
1429 | ||
1430 | } | |
1431 | ||
1432 | } | |
1433 | } | |
1434 | ||
1435 | ||
1436 | ||
96743d3c | 1437 | hms_write_cr(" "); |
fa4b55a1 SC |
1438 | expect_prompt(); |
1439 | ||
1440 | ||
1441 | ||
1442 | ||
1443 | return len; | |
1444 | ||
1445 | } | |
1446 | ||
1447 | /* This routine is run as a hook, just before the main command loop is | |
1448 | entered. If gdb is configured for the H8, but has not had its | |
1449 | target specified yet, this will loop prompting the user to do so. | |
1450 | */ | |
1451 | ||
1452 | hms_before_main_loop () | |
1453 | { | |
1454 | char ttyname[100]; | |
1455 | char *p, *p2; | |
1456 | extern FILE *instream; | |
1457 | extern jmp_buf to_top_level; | |
1458 | ||
1459 | push_target (&hms_ops); | |
1460 | #if 0 | |
1461 | ||
1462 | while (current_target != &hms_ops) { | |
1463 | /* remote tty not specified yet */ | |
1464 | if ( instream == stdin ){ | |
1465 | printf("\nEnter device and filename, or \"quit\" to quit: "); | |
1466 | fflush( stdout ); | |
1467 | } | |
1468 | fgets( ttyname, sizeof(ttyname)-1, stdin ); | |
1469 | ||
1470 | if ( !strcmp("quit", ttyname) ){ | |
1471 | exit(1); | |
1472 | } | |
1473 | ||
1474 | hms_open( ttyname, 1 ); | |
1475 | ||
1476 | /* Now that we have a tty open for talking to the remote machine, | |
1477 | download the executable file if one was specified. */ | |
1478 | if ( !setjmp(to_top_level) && exec_bfd ) { | |
1479 | target_load (bfd_get_filename (exec_bfd), 1); | |
1480 | } | |
1481 | } | |
1482 | #endif | |
1483 | } | |
1484 | ||
1485 | ||
1486 | #define MAX_BREAKS 16 | |
1487 | static int num_brkpts=0; | |
1488 | static int | |
1489 | hms_insert_breakpoint(addr, save) | |
1490 | CORE_ADDR addr; | |
1491 | char *save; /* Throw away, let hms save instructions */ | |
1492 | { | |
1493 | ||
1494 | DENTER("hms_insert_breakpoint()"); | |
1495 | check_open(); | |
1496 | ||
1497 | if (num_brkpts < MAX_BREAKS) { | |
1498 | char buffer[100]; | |
1499 | num_brkpts++; | |
1500 | sprintf(buffer,"b %x", addr & 0xffff); | |
1501 | hms_write_cr(buffer); | |
1502 | expect_prompt (); | |
1503 | DEXIT("hms_insert_breakpoint() success"); | |
1504 | return(0); /* Success */ | |
1505 | } else { | |
1506 | fprintf_filtered(stderr, | |
1507 | "Too many break points, break point not installed\n"); | |
1508 | DEXIT("hms_insert_breakpoint() failure"); | |
1509 | return(1); /* Failure */ | |
1510 | } | |
1511 | ||
1512 | ||
1513 | } | |
1514 | static int | |
1515 | hms_remove_breakpoint(addr, save) | |
1516 | CORE_ADDR addr; | |
1517 | char *save; /* Throw away, let hms save instructions */ | |
1518 | { | |
1519 | DENTER("hms_remove_breakpoint()"); | |
1520 | if (num_brkpts > 0) { | |
1521 | char buffer[100]; | |
1522 | ||
1523 | num_brkpts--; | |
1524 | sprintf(buffer,"b - %x", addr & 0xffff); | |
1525 | hms_write_cr(buffer); | |
1526 | expect_prompt(); | |
1527 | ||
1528 | } | |
1529 | DEXIT("hms_remove_breakpoint()"); | |
1530 | return(0); | |
1531 | } | |
1532 | ||
1533 | /* Clear the hmss notion of what the break points are */ | |
1534 | static int | |
1535 | hms_clear_breakpoints() | |
1536 | { | |
1537 | ||
1538 | DENTER("hms_clear_breakpoint()"); | |
1539 | if (OPEN(hms_desc)) { | |
1540 | hms_write_cr("b -"); | |
1541 | expect_prompt (); | |
1542 | } | |
1543 | num_brkpts = 0; | |
1544 | ||
1545 | DEXIT("hms_clear_breakpoint()"); | |
1546 | } | |
1547 | static void | |
1548 | hms_mourn() | |
1549 | { | |
1550 | DENTER("hms_mourn()"); | |
1551 | hms_clear_breakpoints(); | |
1552 | /* pop_target (); /* Pop back to no-child state */ | |
1553 | generic_mourn_inferior (); | |
1554 | DEXIT("hms_mourn()"); | |
1555 | } | |
1556 | ||
1557 | /* Display everthing we read in from the hms until we match/see the | |
1558 | * specified string | |
1559 | */ | |
1560 | static int | |
1561 | display_until(str) | |
1562 | char *str; | |
1563 | { | |
1564 | int i=0,j,c; | |
1565 | ||
1566 | while (c=readchar()) { | |
1567 | if (c==str[i]) { | |
1568 | i++; | |
1569 | if (i == strlen(str)) return; | |
1570 | } else { | |
1571 | if (i) { | |
1572 | for (j=0 ; j<i ; j++) /* Put everthing we matched */ | |
1573 | putchar(str[j]); | |
1574 | i=0; | |
1575 | } | |
1576 | putchar(c); | |
1577 | } | |
1578 | } | |
1579 | ||
1580 | } | |
1581 | ||
1582 | ||
1583 | /* Put a command string, in args, out to the hms. The hms is assumed to | |
1584 | be in raw mode, all writing/reading done through hms_desc. | |
1585 | Ouput from the hms is placed on the users terminal until the | |
1586 | prompt from the hms is seen. | |
1587 | FIXME: Can't handle commands that take input. */ | |
1588 | ||
1589 | void | |
1590 | hms_com (args, fromtty) | |
1591 | char *args; | |
1592 | int fromtty; | |
1593 | { | |
1594 | check_open(); | |
1595 | ||
1596 | if (!args) return; | |
1597 | ||
1598 | /* Clear all input so only command relative output is displayed */ | |
1599 | ||
1600 | ||
1601 | hms_write_cr(args); | |
1602 | hms_write("\030",1); | |
1603 | expect_prompt(); | |
1604 | ||
1605 | } | |
1606 | ||
1607 | /* Define the target subroutine names */ | |
1608 | ||
1609 | struct target_ops hms_ops = { | |
1610 | "hms", "Remote HMS monitor", | |
1611 | "Use the H8 evaluation board running the HMS monitor connected\n\ | |
1612 | by a serial line.", | |
1613 | ||
1614 | hms_open, hms_close, | |
1615 | hms_attach, hms_detach, hms_resume, hms_wait, | |
1616 | hms_fetch_register, hms_store_register, | |
1617 | hms_prepare_to_store, 0, 0, /* conv_to, conv_from */ | |
1618 | hms_xfer_inferior_memory, | |
1619 | hms_files_info, | |
1620 | hms_insert_breakpoint, hms_remove_breakpoint, /* Breakpoints */ | |
1621 | 0, 0, 0, 0, 0, /* Terminal handling */ | |
1622 | hms_kill, /* FIXME, kill */ | |
1623 | hms_load, | |
fa4b55a1 SC |
1624 | 0, /* lookup_symbol */ |
1625 | hms_create_inferior, /* create_inferior */ | |
1626 | hms_mourn, /* mourn_inferior FIXME */ | |
1627 | process_stratum, 0, /* next */ | |
1628 | 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */ | |
1629 | 0,0, /* Section pointers */ | |
1630 | OPS_MAGIC, /* Always the last thing */ | |
1631 | }; | |
1632 | ||
1633 | ||
1634 | hms_quiet() | |
1635 | { | |
1636 | quiet = ! quiet; | |
1637 | } | |
1638 | ||
1639 | hms_device(s) | |
1640 | char *s; | |
1641 | { | |
1642 | if (s) { | |
1643 | dev_name = get_word(&s); | |
1644 | } | |
1645 | } | |
1646 | ||
96743d3c SC |
1647 | static |
1648 | hms_speed(s) | |
fa4b55a1 SC |
1649 | char *s; |
1650 | { | |
96743d3c SC |
1651 | check_open(); |
1652 | ||
1653 | ||
fa4b55a1 SC |
1654 | if (s) |
1655 | { | |
1656 | char buffer[100]; | |
1657 | int newrate = atoi(s); | |
1658 | int which = 0; | |
1659 | while (baudtab[which].rate != newrate) | |
1660 | { | |
1661 | if (baudtab[which].rate == -1) | |
1662 | { | |
1663 | error("Can't use %d baud\n", newrate); | |
1664 | } | |
1665 | which++; | |
1666 | } | |
1667 | ||
fa4b55a1 | 1668 | printf_filtered("Checking target is in sync\n"); |
fa4b55a1 SC |
1669 | |
1670 | get_baudrate_right(); | |
1671 | baudrate = newrate; | |
1672 | printf_filtered("Sending commands to set target to %d\n", | |
1673 | baudrate); | |
1674 | ||
1675 | sprintf(buffer, "tm %d. N 8 1", baudrate); | |
96743d3c | 1676 | hms_write_cr(buffer); |
fa4b55a1 SC |
1677 | } |
1678 | } | |
1679 | ||
1680 | /***********************************************************************/ | |
1681 | ||
1682 | void | |
1683 | _initialize_remote_hms () | |
1684 | { | |
1685 | add_target (&hms_ops); | |
1686 | add_com ("hms <command>", class_obscure, hms_com, | |
1687 | "Send a command to the HMS monitor."); | |
1688 | add_com ("snoop", class_obscure, hms_quiet, | |
1689 | "Show what commands are going to the monitor"); | |
1690 | add_com ("device", class_obscure, hms_device, | |
1691 | "Set the terminal line for HMS communications"); | |
1692 | ||
1693 | add_com ("speed", class_obscure, hms_speed, | |
1694 | "Set the terminal line speed for HMS communications"); | |
1695 | ||
1696 | } | |
1697 | ||
1698 |