Commit | Line | Data |
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7c18a68f | 1 | /* Remote debugging interface for AMD 290*0 Adapt Monitor Version 2.1d18. |
e17960fb | 2 | Copyright 1990, 1991, 1992 Free Software Foundation, Inc. |
7c18a68f JG |
3 | Contributed by David Wood at New York University (wood@lab.ultra.nyu.edu). |
4 | Adapted from work done at Cygnus Support in remote-eb.c. | |
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 | |
6c9638b4 | 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
7c18a68f JG |
21 | |
22 | /* This is like remote.c but is for an esoteric situation-- | |
23 | having a 29k board attached to an Adapt inline monitor. | |
24 | The monitor is connected via serial line to a unix machine | |
25 | running gdb. | |
26 | ||
27 | 3/91 - developed on Sun3 OS 4.1, by David Wood | |
28 | o - I can't get binary coff to load. | |
29 | o - I can't get 19200 baud rate to work. | |
30 | 7/91 o - Freeze mode tracing can be done on a 29050. */ | |
31 | ||
c719b714 JM |
32 | |
33 | ||
7c18a68f | 34 | #include "defs.h" |
2b576293 | 35 | #include "gdb_string.h" |
7c18a68f JG |
36 | #include "inferior.h" |
37 | #include "wait.h" | |
38 | #include "value.h" | |
39 | #include <ctype.h> | |
40 | #include <fcntl.h> | |
41 | #include <signal.h> | |
42 | #include <errno.h> | |
43 | #include "terminal.h" | |
44 | #include "target.h" | |
45 | #include "gdbcore.h" | |
46 | ||
c719b714 JM |
47 | /* This processor is getting rusty but I am trying to keep it |
48 | up to date at least with data structure changes. | |
49 | Activate this block to compile just this file. | |
50 | */ | |
51 | #define COMPILE_CHECK 0 | |
52 | #if COMPILE_CHECK | |
53 | #define Q_REGNUM 0 | |
54 | #define VAB_REGNUM 0 | |
55 | #define CPS_REGNUM 0 | |
56 | #define IPA_REGNUM 0 | |
57 | #define IPB_REGNUM 0 | |
58 | #define GR1_REGNUM 0 | |
59 | #define LR0_REGNUM 0 | |
60 | #define IPC_REGNUM 0 | |
61 | #define CR_REGNUM 0 | |
62 | #define BP_REGNUM 0 | |
63 | #define FC_REGNUM 0 | |
64 | #define INTE_REGNUM 0 | |
65 | #define EXO_REGNUM 0 | |
66 | #define GR96_REGNUM 0 | |
67 | #define NPC_REGNUM | |
68 | #define FPE_REGNUM 0 | |
69 | #define PC2_REGNUM 0 | |
70 | #define FPS_REGNUM 0 | |
71 | #define ALU_REGNUM 0 | |
72 | #define LRU_REGNUM 0 | |
73 | #define TERMINAL int | |
74 | #define RAW 1 | |
75 | #define ANYP 1 | |
76 | extern int a29k_freeze_mode ; | |
77 | extern int processor_type ; | |
78 | extern char * processor_name ; | |
79 | #endif | |
80 | ||
7c18a68f JG |
81 | /* External data declarations */ |
82 | extern int stop_soon_quietly; /* for wait_for_inferior */ | |
83 | ||
7c18a68f JG |
84 | /* Forward data declarations */ |
85 | extern struct target_ops adapt_ops; /* Forward declaration */ | |
86 | ||
87 | /* Forward function declarations */ | |
88 | static void adapt_fetch_registers (); | |
e95bfbf1 | 89 | static void adapt_store_registers (); |
15f27b29 | 90 | static void adapt_close (); |
e36ca74a | 91 | static int adapt_clear_breakpoints(); |
7c18a68f | 92 | |
7c18a68f | 93 | #define FREEZE_MODE (read_register(CPS_REGNUM) && 0x400) |
ca0622e7 | 94 | #define USE_SHADOW_PC ((processor_type == a29k_freeze_mode) && FREEZE_MODE) |
7c18a68f | 95 | |
7c18a68f JG |
96 | /* Can't seem to get binary coff working */ |
97 | #define ASCII_COFF /* Adapt will be downloaded with ascii coff */ | |
98 | ||
ca0622e7 | 99 | /* FIXME: Replace with `set remotedebug'. */ |
7c18a68f JG |
100 | #define LOG_FILE "adapt.log" |
101 | #if defined (LOG_FILE) | |
102 | FILE *log_file=NULL; | |
103 | #endif | |
104 | ||
105 | static int timeout = 5; | |
106 | static char *dev_name; | |
107 | ||
108 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that | |
109 | adapt_open knows that we don't have a file open when the program | |
110 | starts. */ | |
111 | int adapt_desc = -1; | |
112 | ||
113 | /* stream which is fdopen'd from adapt_desc. Only valid when | |
114 | adapt_desc != -1. */ | |
115 | FILE *adapt_stream; | |
116 | ||
117 | #define ON 1 | |
118 | #define OFF 0 | |
119 | static void | |
120 | rawmode(desc, turnon) | |
121 | int desc; | |
122 | int turnon; | |
123 | { | |
c719b714 | 124 | |
7c18a68f JG |
125 | TERMINAL sg; |
126 | ||
127 | if (desc < 0) | |
128 | return; | |
129 | ||
130 | ioctl (desc, TIOCGETP, &sg); | |
131 | ||
132 | if (turnon) { | |
133 | #ifdef HAVE_TERMIO | |
134 | sg.c_lflag &= ~(ICANON); | |
135 | #else | |
136 | sg.sg_flags |= RAW; | |
137 | #endif | |
138 | } else { | |
139 | #ifdef HAVE_TERMIO | |
140 | sg.c_lflag |= ICANON; | |
141 | #else | |
142 | sg.sg_flags &= ~(RAW); | |
143 | #endif | |
144 | } | |
145 | ioctl (desc, TIOCSETP, &sg); | |
146 | } | |
147 | ||
148 | /* Suck up all the input from the adapt */ | |
149 | slurp_input() | |
150 | { | |
151 | char buf[8]; | |
152 | ||
153 | #ifdef HAVE_TERMIO | |
154 | /* termio does the timeout for us. */ | |
155 | while (read (adapt_desc, buf, 8) > 0); | |
156 | #else | |
157 | alarm (timeout); | |
158 | while (read (adapt_desc, buf, 8) > 0); | |
159 | alarm (0); | |
160 | #endif | |
161 | } | |
162 | ||
163 | /* Read a character from the remote system, doing all the fancy | |
164 | timeout stuff. */ | |
165 | static int | |
166 | readchar () | |
167 | { | |
168 | char buf; | |
169 | ||
170 | buf = '\0'; | |
171 | #ifdef HAVE_TERMIO | |
172 | /* termio does the timeout for us. */ | |
173 | read (adapt_desc, &buf, 1); | |
174 | #else | |
175 | alarm (timeout); | |
176 | if (read (adapt_desc, &buf, 1) < 0) | |
177 | { | |
178 | if (errno == EINTR) | |
179 | error ("Timeout reading from remote system."); | |
180 | else | |
181 | perror_with_name ("remote"); | |
182 | } | |
183 | alarm (0); | |
184 | #endif | |
185 | ||
186 | if (buf == '\0') | |
187 | error ("Timeout reading from remote system."); | |
188 | #if defined (LOG_FILE) | |
189 | putc (buf & 0x7f, log_file); | |
190 | #endif | |
191 | return buf & 0x7f; | |
192 | } | |
193 | ||
194 | /* Keep discarding input from the remote system, until STRING is found. | |
195 | Let the user break out immediately. */ | |
196 | static void | |
197 | expect (string) | |
198 | char *string; | |
199 | { | |
200 | char *p = string; | |
201 | ||
202 | fflush(adapt_stream); | |
203 | immediate_quit = 1; | |
204 | while (1) | |
205 | { | |
206 | if (readchar() == *p) | |
207 | { | |
208 | p++; | |
209 | if (*p == '\0') | |
210 | { | |
211 | immediate_quit = 0; | |
212 | return; | |
213 | } | |
214 | } | |
215 | else | |
216 | p = string; | |
217 | } | |
218 | } | |
219 | ||
220 | /* Keep discarding input until we see the adapt prompt. | |
221 | ||
222 | The convention for dealing with the prompt is that you | |
223 | o give your command | |
224 | o *then* wait for the prompt. | |
225 | ||
226 | Thus the last thing that a procedure does with the serial line | |
227 | will be an expect_prompt(). Exception: adapt_resume does not | |
228 | wait for the prompt, because the terminal is being handed over | |
229 | to the inferior. However, the next thing which happens after that | |
230 | is a adapt_wait which does wait for the prompt. | |
231 | Note that this includes abnormal exit, e.g. error(). This is | |
232 | necessary to prevent getting into states from which we can't | |
233 | recover. */ | |
234 | static void | |
235 | expect_prompt () | |
236 | { | |
237 | #if defined (LOG_FILE) | |
238 | /* This is a convenient place to do this. The idea is to do it often | |
239 | enough that we never lose much data if we terminate abnormally. */ | |
240 | fflush (log_file); | |
241 | #endif | |
242 | fflush(adapt_stream); | |
243 | expect ("\n# "); | |
244 | } | |
245 | ||
246 | /* Get a hex digit from the remote system & return its value. | |
247 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ | |
248 | static int | |
249 | get_hex_digit (ignore_space) | |
250 | int ignore_space; | |
251 | { | |
252 | int ch; | |
253 | while (1) | |
254 | { | |
255 | ch = readchar (); | |
256 | if (ch >= '0' && ch <= '9') | |
257 | return ch - '0'; | |
258 | else if (ch >= 'A' && ch <= 'F') | |
259 | return ch - 'A' + 10; | |
260 | else if (ch >= 'a' && ch <= 'f') | |
261 | return ch - 'a' + 10; | |
262 | else if (ch == ' ' && ignore_space) | |
263 | ; | |
264 | else | |
265 | { | |
266 | expect_prompt (); | |
267 | error ("Invalid hex digit from remote system."); | |
268 | } | |
269 | } | |
270 | } | |
271 | ||
272 | /* Get a byte from adapt_desc and put it in *BYT. Accept any number | |
273 | leading spaces. */ | |
274 | static void | |
275 | get_hex_byte (byt) | |
276 | char *byt; | |
277 | { | |
278 | int val; | |
279 | ||
280 | val = get_hex_digit (1) << 4; | |
281 | val |= get_hex_digit (0); | |
282 | *byt = val; | |
283 | } | |
284 | ||
285 | /* Read a 32-bit hex word from the adapt, preceded by a space */ | |
286 | static long | |
287 | get_hex_word() | |
288 | { | |
289 | long val; | |
290 | int j; | |
291 | ||
292 | val = 0; | |
293 | for (j = 0; j < 8; j++) | |
294 | val = (val << 4) + get_hex_digit (j == 0); | |
295 | return val; | |
296 | } | |
297 | /* Get N 32-bit hex words from remote, each preceded by a space | |
298 | and put them in registers starting at REGNO. */ | |
299 | static void | |
300 | get_hex_regs (n, regno) | |
301 | int n; | |
302 | int regno; | |
303 | { | |
304 | long val; | |
305 | while (n--) { | |
306 | val = get_hex_word(); | |
a058c1e8 | 307 | supply_register(regno++,(char *) &val); |
7c18a68f JG |
308 | } |
309 | } | |
310 | /* Called when SIGALRM signal sent due to alarm() timeout. */ | |
311 | #ifndef HAVE_TERMIO | |
312 | ||
313 | #ifndef __STDC__ | |
314 | # ifndef volatile | |
315 | # define volatile /**/ | |
316 | # endif | |
317 | #endif | |
318 | volatile int n_alarms; | |
319 | ||
320 | void | |
321 | adapt_timer () | |
322 | { | |
323 | #if 0 | |
324 | if (kiodebug) | |
325 | printf ("adapt_timer called\n"); | |
326 | #endif | |
327 | n_alarms++; | |
328 | } | |
329 | #endif | |
330 | ||
331 | /* malloc'd name of the program on the remote system. */ | |
332 | static char *prog_name = NULL; | |
333 | ||
334 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
335 | NEED_ARTIFICIAL_TRAP calls to adapt_wait should just return | |
336 | SIGTRAP without actually waiting for anything. */ | |
337 | ||
338 | static int need_artificial_trap = 0; | |
339 | ||
340 | void | |
341 | adapt_kill(arg,from_tty) | |
342 | char *arg; | |
343 | int from_tty; | |
344 | { | |
7c18a68f JG |
345 | fprintf (adapt_stream, "K"); |
346 | fprintf (adapt_stream, "\r"); | |
347 | expect_prompt (); | |
7c18a68f JG |
348 | } |
349 | /* | |
350 | * Download a file specified in 'args', to the adapt. | |
351 | * FIXME: Assumes the file to download is a binary coff file. | |
352 | */ | |
353 | static void | |
354 | adapt_load(args,fromtty) | |
355 | char *args; | |
356 | int fromtty; | |
357 | { | |
358 | FILE *fp; | |
359 | int n; | |
360 | char buffer[1024]; | |
361 | ||
7c18a68f JG |
362 | if (!adapt_stream) { |
363 | printf_filtered("Adapt not open. Use 'target' command to open adapt\n"); | |
364 | return; | |
365 | } | |
366 | ||
367 | /* OK, now read in the file. Y=read, C=COFF, T=dTe port | |
368 | 0=start address. */ | |
369 | ||
370 | #ifdef ASCII_COFF /* Ascii coff */ | |
371 | fprintf (adapt_stream, "YA T,0\r"); | |
372 | fflush(adapt_stream); /* Just in case */ | |
373 | /* FIXME: should check args for only 1 argument */ | |
374 | sprintf(buffer,"cat %s | btoa > /tmp/#adapt-btoa",args); | |
375 | system(buffer); | |
376 | fp = fopen("/tmp/#adapt-btoa","r"); | |
377 | rawmode(adapt_desc,OFF); | |
378 | while (n=fread(buffer,1,1024,fp)) { | |
379 | do { n -= write(adapt_desc,buffer,n); } while (n>0); | |
380 | if (n<0) { perror("writing ascii coff"); break; } | |
381 | } | |
382 | fclose(fp); | |
383 | rawmode(adapt_desc,ON); | |
384 | system("rm /tmp/#adapt-btoa"); | |
385 | #else /* Binary coff - can't get it to work .*/ | |
386 | fprintf (adapt_stream, "YC T,0\r"); | |
387 | fflush(adapt_stream); /* Just in case */ | |
388 | if (!(fp = fopen(args,"r"))) { | |
389 | printf_filtered("Can't open %s\n",args); | |
390 | return; | |
391 | } | |
392 | while (n=fread(buffer,1,512,fp)) { | |
393 | do { n -= write(adapt_desc,buffer,n); } while (n>0); | |
394 | if (n<0) { perror("writing ascii coff"); break; } | |
395 | } | |
396 | fclose(fp); | |
397 | #endif | |
398 | expect_prompt (); /* Skip garbage that comes out */ | |
399 | fprintf (adapt_stream, "\r"); | |
400 | expect_prompt (); | |
7c18a68f JG |
401 | } |
402 | ||
403 | /* This is called not only when we first attach, but also when the | |
404 | user types "run" after having attached. */ | |
405 | void | |
406 | adapt_create_inferior (execfile, args, env) | |
407 | char *execfile; | |
408 | char *args; | |
409 | char **env; | |
410 | { | |
411 | int entry_pt; | |
412 | ||
7c18a68f JG |
413 | if (args && *args) |
414 | error ("Can't pass arguments to remote adapt process."); | |
415 | ||
416 | if (execfile == 0 || exec_bfd == 0) | |
b8464c15 | 417 | error ("No executable file specified"); |
7c18a68f JG |
418 | |
419 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
420 | ||
421 | if (adapt_stream) { | |
422 | adapt_kill(NULL,NULL); | |
423 | adapt_clear_breakpoints(); | |
424 | init_wait_for_inferior (); | |
425 | /* Clear the input because what the adapt sends back is different | |
426 | * depending on whether it was running or not. | |
427 | */ | |
428 | slurp_input(); /* After this there should be a prompt */ | |
429 | fprintf(adapt_stream,"\r"); | |
430 | expect_prompt(); | |
431 | printf_filtered("Do you want to download '%s' (y/n)? [y] : ",prog_name); | |
432 | { | |
433 | char buffer[10]; | |
434 | gets(buffer); | |
435 | if (*buffer != 'n') { | |
436 | adapt_load(prog_name,0); | |
437 | } | |
438 | } | |
439 | ||
440 | #ifdef NOTDEF | |
441 | /* Set the PC and wait for a go/cont */ | |
442 | fprintf (adapt_stream, "G %x,N\r",entry_pt); | |
443 | printf_filtered("Now use the 'continue' command to start.\n"); | |
444 | expect_prompt (); | |
445 | #else | |
446 | insert_breakpoints (); /* Needed to get correct instruction in cache */ | |
45dc9be3 | 447 | proceed(entry_pt, TARGET_SIGNAL_DEFAULT, 0); |
7c18a68f JG |
448 | #endif |
449 | ||
450 | } else { | |
451 | printf_filtered("Adapt not open yet.\n"); | |
452 | } | |
7c18a68f JG |
453 | } |
454 | ||
455 | /* Translate baud rates from integers to damn B_codes. Unix should | |
456 | have outgrown this crap years ago, but even POSIX wouldn't buck it. */ | |
457 | ||
458 | #ifndef B19200 | |
459 | #define B19200 EXTA | |
460 | #endif | |
461 | #ifndef B38400 | |
462 | #define B38400 EXTB | |
463 | #endif | |
464 | ||
465 | static struct {int rate, damn_b;} baudtab[] = { | |
466 | {0, B0}, | |
467 | {50, B50}, | |
468 | {75, B75}, | |
469 | {110, B110}, | |
470 | {134, B134}, | |
471 | {150, B150}, | |
472 | {200, B200}, | |
473 | {300, B300}, | |
474 | {600, B600}, | |
475 | {1200, B1200}, | |
476 | {1800, B1800}, | |
477 | {2400, B2400}, | |
478 | {4800, B4800}, | |
479 | {9600, B9600}, | |
480 | {19200, B19200}, | |
481 | {38400, B38400}, | |
482 | {-1, -1}, | |
483 | }; | |
484 | ||
485 | static int damn_b (rate) | |
486 | int rate; | |
487 | { | |
488 | int i; | |
489 | ||
490 | for (i = 0; baudtab[i].rate != -1; i++) | |
491 | if (rate == baudtab[i].rate) return baudtab[i].damn_b; | |
492 | return B38400; /* Random */ | |
493 | } | |
494 | ||
495 | ||
496 | /* Open a connection to a remote debugger. | |
497 | NAME is the filename used for communication, then a space, | |
498 | then the baud rate. | |
499 | */ | |
500 | ||
501 | static int baudrate = 9600; | |
502 | static void | |
503 | adapt_open (name, from_tty) | |
504 | char *name; | |
505 | int from_tty; | |
506 | { | |
507 | TERMINAL sg; | |
508 | unsigned int prl; | |
509 | char *p; | |
510 | ||
7c18a68f JG |
511 | /* Find the first whitespace character, it separates dev_name from |
512 | prog_name. */ | |
513 | if (name == 0) | |
514 | goto erroid; | |
515 | ||
516 | for (p = name; | |
517 | *p != '\0' && !isspace (*p); p++) | |
518 | ; | |
519 | if (*p == '\0') | |
520 | erroid: | |
521 | error ("\ | |
522 | Please include the name of the device for the serial port,\n\ | |
523 | the baud rate, and the name of the program to run on the remote system."); | |
c37c7c6c | 524 | dev_name = (char*)xmalloc(p - name + 1); |
7c18a68f JG |
525 | strncpy (dev_name, name, p - name); |
526 | dev_name[p - name] = '\0'; | |
527 | ||
528 | /* Skip over the whitespace after dev_name */ | |
529 | for (; isspace (*p); p++) | |
530 | /*EMPTY*/; | |
531 | ||
532 | if (1 != sscanf (p, "%d ", &baudrate)) | |
533 | goto erroid; | |
534 | ||
535 | /* Skip the number and then the spaces */ | |
536 | for (; isdigit (*p); p++) | |
537 | /*EMPTY*/; | |
538 | for (; isspace (*p); p++) | |
539 | /*EMPTY*/; | |
540 | ||
541 | if (prog_name != NULL) | |
542 | free (prog_name); | |
543 | prog_name = savestring (p, strlen (p)); | |
544 | ||
545 | adapt_close (0); | |
546 | ||
547 | adapt_desc = open (dev_name, O_RDWR); | |
548 | if (adapt_desc < 0) | |
549 | perror_with_name (dev_name); | |
550 | ioctl (adapt_desc, TIOCGETP, &sg); | |
c719b714 | 551 | #if ! defined(COMPILE_CHECK) |
7c18a68f JG |
552 | #ifdef HAVE_TERMIO |
553 | sg.c_cc[VMIN] = 0; /* read with timeout. */ | |
554 | sg.c_cc[VTIME] = timeout * 10; | |
555 | sg.c_lflag &= ~(ICANON | ECHO); | |
556 | sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate); | |
557 | #else | |
558 | sg.sg_ispeed = damn_b (baudrate); | |
559 | sg.sg_ospeed = damn_b (baudrate); | |
560 | sg.sg_flags |= RAW | ANYP; | |
561 | sg.sg_flags &= ~ECHO; | |
562 | #endif | |
563 | ||
564 | ioctl (adapt_desc, TIOCSETP, &sg); | |
565 | adapt_stream = fdopen (adapt_desc, "r+"); | |
c719b714 | 566 | #endif /* compile_check */ |
7c18a68f | 567 | push_target (&adapt_ops); |
7c18a68f JG |
568 | |
569 | #ifndef HAVE_TERMIO | |
570 | #ifndef NO_SIGINTERRUPT | |
571 | /* Cause SIGALRM's to make reads fail with EINTR instead of resuming | |
572 | the read. */ | |
573 | if (siginterrupt (SIGALRM, 1) != 0) | |
574 | perror ("adapt_open: error in siginterrupt"); | |
575 | #endif | |
576 | ||
577 | /* Set up read timeout timer. */ | |
578 | if ((void (*)) signal (SIGALRM, adapt_timer) == (void (*)) -1) | |
579 | perror ("adapt_open: error in signal"); | |
580 | #endif | |
581 | ||
582 | #if defined (LOG_FILE) | |
583 | log_file = fopen (LOG_FILE, "w"); | |
584 | if (log_file == NULL) | |
585 | perror_with_name (LOG_FILE); | |
586 | #endif | |
587 | ||
588 | /* Put this port into NORMAL mode, send the 'normal' character */ | |
589 | write(adapt_desc, "\ 1", 1); /* Control A */ | |
590 | write(adapt_desc, "\r", 1); | |
591 | expect_prompt (); | |
592 | ||
593 | /* Hello? Are you there? */ | |
594 | write (adapt_desc, "\r", 1); | |
595 | ||
596 | expect_prompt (); | |
597 | ||
598 | /* Clear any break points */ | |
599 | adapt_clear_breakpoints(); | |
600 | ||
7c18a68f | 601 | /* Print out some stuff, letting the user now what's going on */ |
ca0622e7 | 602 | printf_filtered("Connected to an Adapt via %s.\n", dev_name); |
7c18a68f JG |
603 | /* FIXME: can this restriction be removed? */ |
604 | printf_filtered("Remote debugging using virtual addresses works only\n"); | |
605 | printf_filtered("\twhen virtual addresses map 1:1 to physical addresses.\n"); | |
ca0622e7 | 606 | if (processor_type != a29k_freeze_mode) { |
7c18a68f JG |
607 | fprintf_filtered(stderr, |
608 | "Freeze-mode debugging not available, and can only be done on an A29050.\n"); | |
609 | } | |
7c18a68f JG |
610 | } |
611 | ||
612 | /* Close out all files and local state before this target loses control. */ | |
613 | ||
614 | static void | |
615 | adapt_close (quitting) | |
616 | int quitting; | |
617 | { | |
618 | ||
7c18a68f JG |
619 | /* Clear any break points */ |
620 | adapt_clear_breakpoints(); | |
621 | ||
622 | /* Put this port back into REMOTE mode */ | |
623 | if (adapt_stream) { | |
624 | fflush(adapt_stream); | |
625 | sleep(1); /* Let any output make it all the way back */ | |
626 | write(adapt_desc, "R\r", 2); | |
627 | } | |
628 | ||
629 | /* Due to a bug in Unix, fclose closes not only the stdio stream, | |
630 | but also the file descriptor. So we don't actually close | |
631 | adapt_desc. */ | |
632 | if (adapt_stream) | |
633 | fclose (adapt_stream); /* This also closes adapt_desc */ | |
634 | if (adapt_desc >= 0) | |
635 | /* close (adapt_desc); */ | |
636 | ||
637 | /* Do not try to close adapt_desc again, later in the program. */ | |
638 | adapt_stream = NULL; | |
639 | adapt_desc = -1; | |
640 | ||
641 | #if defined (LOG_FILE) | |
642 | if (log_file) { | |
643 | if (ferror (log_file)) | |
644 | printf_filtered ("Error writing log file.\n"); | |
645 | if (fclose (log_file) != 0) | |
646 | printf_filtered ("Error closing log file.\n"); | |
647 | log_file = NULL; | |
648 | } | |
649 | #endif | |
7c18a68f JG |
650 | } |
651 | ||
652 | /* Attach to the target that is already loaded and possibly running */ | |
653 | static void | |
654 | adapt_attach (args, from_tty) | |
655 | char *args; | |
656 | int from_tty; | |
657 | { | |
658 | ||
7c18a68f JG |
659 | if (from_tty) |
660 | printf_filtered ("Attaching to remote program %s.\n", prog_name); | |
661 | ||
7c18a68f JG |
662 | /* Send the adapt a kill. It is ok if it is not already running */ |
663 | fprintf(adapt_stream, "K\r"); fflush(adapt_stream); | |
664 | expect_prompt(); /* Slurp the echo */ | |
7c18a68f JG |
665 | } |
666 | ||
667 | ||
668 | /* Terminate the open connection to the remote debugger. | |
669 | Use this when you want to detach and do something else | |
670 | with your gdb. */ | |
671 | void | |
672 | adapt_detach (args,from_tty) | |
673 | char *args; | |
674 | int from_tty; | |
675 | { | |
836e343b | 676 | |
7c18a68f JG |
677 | if (adapt_stream) { /* Send it on its way (tell it to continue) */ |
678 | adapt_clear_breakpoints(); | |
679 | fprintf(adapt_stream,"G\r"); | |
680 | } | |
681 | ||
682 | pop_target(); /* calls adapt_close to do the real work */ | |
683 | if (from_tty) | |
684 | printf_filtered ("Ending remote %s debugging\n", target_shortname); | |
7c18a68f JG |
685 | } |
686 | ||
687 | /* Tell the remote machine to resume. */ | |
688 | ||
689 | void | |
25286543 | 690 | adapt_resume (pid, step, sig) |
67ac9759 JK |
691 | int pid, step; |
692 | enum target_signal sig; | |
7c18a68f | 693 | { |
7c18a68f JG |
694 | if (step) |
695 | { | |
696 | write (adapt_desc, "t 1,s\r", 6); | |
697 | /* Wait for the echo. */ | |
698 | expect ("t 1,s\r\n"); | |
699 | /* Then comes a line containing the instruction we stepped to. */ | |
700 | expect ("@"); | |
701 | /* Then we get the prompt. */ | |
702 | expect_prompt (); | |
703 | ||
704 | /* Force the next adapt_wait to return a trap. Not doing anything | |
705 | about I/O from the target means that the user has to type | |
706 | "continue" to see any. FIXME, this should be fixed. */ | |
707 | need_artificial_trap = 1; | |
708 | } | |
709 | else | |
710 | { | |
711 | write (adapt_desc, "G\r", 2); | |
712 | /* Swallow the echo. */ | |
713 | expect_prompt(); | |
714 | } | |
7c18a68f JG |
715 | } |
716 | ||
717 | /* Wait until the remote machine stops, then return, | |
718 | storing status in STATUS just as `wait' would. */ | |
719 | ||
720 | int | |
721 | adapt_wait (status) | |
67ac9759 | 722 | struct target_waitstatus *status; |
7c18a68f JG |
723 | { |
724 | /* Strings to look for. '?' means match any single character. | |
725 | Note that with the algorithm we use, the initial character | |
726 | of the string cannot recur in the string, or we will not | |
727 | find some cases of the string in the input. */ | |
728 | ||
729 | static char bpt[] = "@"; | |
730 | /* It would be tempting to look for "\n[__exit + 0x8]\n" | |
731 | but that requires loading symbols with "yc i" and even if | |
732 | we did do that we don't know that the file has symbols. */ | |
733 | static char exitmsg[] = "@????????I JMPTI GR121,LR0"; | |
734 | char *bp = bpt; | |
735 | char *ep = exitmsg; | |
736 | ||
737 | /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */ | |
738 | char swallowed[50]; | |
739 | /* Current position in swallowed. */ | |
740 | char *swallowed_p = swallowed; | |
741 | ||
742 | int ch; | |
743 | int ch_handled; | |
744 | int old_timeout = timeout; | |
745 | int old_immediate_quit = immediate_quit; | |
746 | ||
67ac9759 JK |
747 | status->kind = TARGET_WAITKIND_EXITED; |
748 | status->value.integer = 0; | |
7c18a68f JG |
749 | |
750 | if (need_artificial_trap != 0) | |
751 | { | |
67ac9759 JK |
752 | status->kind = TARGET_WAITKIND_STOPPED; |
753 | status->value.sig = TARGET_SIGNAL_TRAP; | |
7c18a68f JG |
754 | need_artificial_trap--; |
755 | return 0; | |
756 | } | |
757 | ||
758 | timeout = 0; /* Don't time out -- user program is running. */ | |
759 | immediate_quit = 1; /* Helps ability to QUIT */ | |
760 | while (1) { | |
761 | QUIT; /* Let user quit and leave process running */ | |
762 | ch_handled = 0; | |
763 | ch = readchar (); | |
764 | if (ch == *bp) { | |
765 | bp++; | |
766 | if (*bp == '\0') | |
767 | break; | |
768 | ch_handled = 1; | |
769 | ||
770 | *swallowed_p++ = ch; | |
771 | } else | |
772 | bp = bpt; | |
773 | if (ch == *ep || *ep == '?') { | |
774 | ep++; | |
775 | if (*ep == '\0') | |
776 | break; | |
777 | ||
778 | if (!ch_handled) | |
779 | *swallowed_p++ = ch; | |
780 | ch_handled = 1; | |
781 | } else | |
782 | ep = exitmsg; | |
783 | if (!ch_handled) { | |
784 | char *p; | |
785 | /* Print out any characters which have been swallowed. */ | |
786 | for (p = swallowed; p < swallowed_p; ++p) | |
787 | putc (*p, stdout); | |
788 | swallowed_p = swallowed; | |
789 | putc (ch, stdout); | |
790 | } | |
791 | } | |
792 | expect_prompt (); | |
793 | if (*bp== '\0') | |
67ac9759 JK |
794 | { |
795 | status->kind = TARGET_WAITKIND_STOPPED; | |
796 | status->value.sig = TARGET_SIGNAL_TRAP; | |
797 | } | |
7c18a68f | 798 | else |
67ac9759 JK |
799 | { |
800 | status->kind = TARGET_WAITKIND_EXITED; | |
801 | status->value.integer = 0; | |
802 | } | |
7c18a68f JG |
803 | timeout = old_timeout; |
804 | immediate_quit = old_immediate_quit; | |
7c18a68f JG |
805 | return 0; |
806 | } | |
807 | ||
808 | /* Return the name of register number REGNO | |
809 | in the form input and output by adapt. | |
810 | ||
811 | Returns a pointer to a static buffer containing the answer. */ | |
812 | static char * | |
813 | get_reg_name (regno) | |
814 | int regno; | |
815 | { | |
816 | static char buf[80]; | |
817 | if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32 ) | |
818 | sprintf (buf, "GR%03d", regno - GR96_REGNUM + 96); | |
819 | #if defined(GR64_REGNUM) | |
820 | else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32 ) | |
821 | sprintf (buf, "GR%03d", regno - GR64_REGNUM + 64); | |
822 | #endif | |
823 | else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128) | |
824 | sprintf (buf, "LR%03d", regno - LR0_REGNUM); | |
825 | else if (regno == Q_REGNUM) | |
826 | strcpy (buf, "SR131"); | |
827 | else if (regno >= BP_REGNUM && regno <= CR_REGNUM) | |
828 | sprintf (buf, "SR%03d", regno - BP_REGNUM + 133); | |
829 | else if (regno == ALU_REGNUM) | |
830 | strcpy (buf, "SR132"); | |
831 | else if (regno >= IPC_REGNUM && regno <= IPB_REGNUM) | |
832 | sprintf (buf, "SR%03d", regno - IPC_REGNUM + 128); | |
833 | else if (regno >= VAB_REGNUM && regno <= LRU_REGNUM) { | |
834 | /* When a 29050 is in freeze-mode, read shadow pcs instead */ | |
835 | if ((regno >= NPC_REGNUM && regno <= PC2_REGNUM) && USE_SHADOW_PC) | |
836 | sprintf (buf, "SR%03d", regno - NPC_REGNUM + 20); | |
837 | else | |
838 | sprintf (buf, "SR%03d", regno - VAB_REGNUM); | |
839 | } | |
840 | else if (regno == GR1_REGNUM) | |
841 | strcpy (buf, "GR001"); | |
842 | return buf; | |
843 | } | |
844 | ||
845 | /* Read the remote registers. */ | |
846 | ||
847 | static void | |
848 | adapt_fetch_registers () | |
849 | { | |
850 | int reg_index; | |
851 | int regnum_index; | |
852 | char tempbuf[10]; | |
853 | int sreg_buf[16]; | |
854 | int i,j; | |
855 | ||
7c18a68f JG |
856 | /* |
857 | * Global registers | |
858 | */ | |
859 | #if defined(GR64_REGNUM) | |
860 | write (adapt_desc, "dw gr64,gr95\r", 13); | |
861 | for (reg_index = 64, regnum_index = GR64_REGNUM; | |
862 | reg_index < 96; | |
863 | reg_index += 4, regnum_index += 4) | |
864 | { | |
865 | sprintf (tempbuf, "GR%03d ", reg_index); | |
866 | expect (tempbuf); | |
867 | get_hex_regs (4, regnum_index); | |
868 | expect ("\n"); | |
869 | } | |
870 | #endif | |
871 | write (adapt_desc, "dw gr96,gr127\r", 14); | |
872 | for (reg_index = 96, regnum_index = GR96_REGNUM; | |
873 | reg_index < 128; | |
874 | reg_index += 4, regnum_index += 4) | |
875 | { | |
876 | sprintf (tempbuf, "GR%03d ", reg_index); | |
877 | expect (tempbuf); | |
878 | get_hex_regs (4, regnum_index); | |
879 | expect ("\n"); | |
880 | } | |
881 | ||
882 | /* | |
883 | * Local registers | |
884 | */ | |
885 | for (i = 0; i < 128; i += 32) | |
886 | { | |
887 | /* The PC has a tendency to hang if we get these | |
888 | all in one fell swoop ("dw lr0,lr127"). */ | |
889 | sprintf (tempbuf, "dw lr%d\r", i); | |
890 | write (adapt_desc, tempbuf, strlen (tempbuf)); | |
891 | for (reg_index = i, regnum_index = LR0_REGNUM + i; | |
892 | reg_index < i + 32; | |
893 | reg_index += 4, regnum_index += 4) | |
894 | { | |
895 | sprintf (tempbuf, "LR%03d ", reg_index); | |
896 | expect (tempbuf); | |
897 | get_hex_regs (4, regnum_index); | |
898 | expect ("\n"); | |
899 | } | |
900 | } | |
901 | ||
902 | /* | |
903 | * Special registers | |
904 | */ | |
905 | sprintf (tempbuf, "dw sr0\r"); | |
906 | write (adapt_desc, tempbuf, strlen (tempbuf)); | |
907 | for (i=0 ; i<4 ; i++) { /* SR0 - SR14 */ | |
908 | sprintf (tempbuf, "SR%3d",i*4); | |
909 | expect(tempbuf); | |
910 | for (j=0 ; j < (i==3 ? 3 : 4) ; j++) | |
911 | sreg_buf[i*4 + j] = get_hex_word(); | |
912 | } | |
913 | expect_prompt(); | |
914 | /* | |
915 | * Read the pcs individually if we are in freeze mode. | |
916 | * See get_reg_name(), it translates the register names for the pcs to | |
917 | * the names of the shadow pcs. | |
918 | */ | |
919 | if (USE_SHADOW_PC) { | |
920 | sreg_buf[10] = read_register(NPC_REGNUM); /* pc0 */ | |
921 | sreg_buf[11] = read_register(PC_REGNUM); /* pc1 */ | |
922 | sreg_buf[12] = read_register(PC2_REGNUM); /* pc2 */ | |
923 | } | |
924 | for (i=0 ; i<14 ; i++) /* Supply vab -> lru */ | |
a058c1e8 | 925 | supply_register(VAB_REGNUM+i, (char *) &sreg_buf[i]); |
7c18a68f JG |
926 | sprintf (tempbuf, "dw sr128\r"); |
927 | write (adapt_desc, tempbuf, strlen (tempbuf)); | |
928 | for (i=0 ; i<2 ; i++) { /* SR128 - SR135 */ | |
929 | sprintf (tempbuf, "SR%3d",128 + i*4); | |
930 | expect(tempbuf); | |
931 | for (j=0 ; j<4 ; j++) | |
932 | sreg_buf[i*4 + j] = get_hex_word(); | |
933 | } | |
934 | expect_prompt(); | |
a058c1e8 RP |
935 | supply_register(IPC_REGNUM,(char *) &sreg_buf[0]); |
936 | supply_register(IPA_REGNUM,(char *) &sreg_buf[1]); | |
937 | supply_register(IPB_REGNUM,(char *) &sreg_buf[2]); | |
938 | supply_register(Q_REGNUM, (char *) &sreg_buf[3]); | |
7c18a68f | 939 | /* Skip ALU */ |
a058c1e8 RP |
940 | supply_register(BP_REGNUM, (char *) &sreg_buf[5]); |
941 | supply_register(FC_REGNUM, (char *) &sreg_buf[6]); | |
942 | supply_register(CR_REGNUM, (char *) &sreg_buf[7]); | |
7c18a68f JG |
943 | |
944 | /* There doesn't seem to be any way to get these. */ | |
945 | { | |
946 | int val = -1; | |
a058c1e8 RP |
947 | supply_register (FPE_REGNUM, (char *) &val); |
948 | supply_register (INTE_REGNUM, (char *) &val); | |
949 | supply_register (FPS_REGNUM, (char *) &val); | |
950 | supply_register (EXO_REGNUM, (char *) &val); | |
7c18a68f JG |
951 | } |
952 | ||
953 | write (adapt_desc, "dw gr1,gr1\r", 11); | |
954 | expect ("GR001 "); | |
955 | get_hex_regs (1, GR1_REGNUM); | |
956 | expect_prompt (); | |
7c18a68f JG |
957 | } |
958 | ||
959 | /* Fetch register REGNO, or all registers if REGNO is -1. | |
960 | */ | |
961 | static void | |
962 | adapt_fetch_register (regno) | |
963 | int regno; | |
964 | { | |
7c18a68f JG |
965 | if (regno == -1) |
966 | adapt_fetch_registers (); | |
967 | else | |
968 | { | |
969 | char *name = get_reg_name (regno); | |
970 | fprintf (adapt_stream, "dw %s,%s\r", name, name); | |
971 | expect (name); | |
972 | expect (" "); | |
973 | get_hex_regs (1, regno); | |
974 | expect_prompt (); | |
975 | } | |
7c18a68f JG |
976 | } |
977 | ||
978 | /* Store the remote registers from the contents of the block REGS. */ | |
979 | ||
e95bfbf1 | 980 | static void |
7c18a68f JG |
981 | adapt_store_registers () |
982 | { | |
983 | int i, j; | |
984 | ||
7c18a68f JG |
985 | fprintf (adapt_stream, "s gr1,%x\r", read_register (GR1_REGNUM)); |
986 | expect_prompt (); | |
987 | ||
988 | #if defined(GR64_REGNUM) | |
989 | for (j = 0; j < 32; j += 16) | |
990 | { | |
991 | fprintf (adapt_stream, "s gr%d,", j + 64); | |
992 | for (i = 0; i < 15; ++i) | |
993 | fprintf (adapt_stream, "%x,", read_register (GR64_REGNUM + j + i)); | |
994 | fprintf (adapt_stream, "%x\r", read_register (GR64_REGNUM + j + 15)); | |
995 | expect_prompt (); | |
996 | } | |
997 | #endif | |
998 | for (j = 0; j < 32; j += 16) | |
999 | { | |
1000 | fprintf (adapt_stream, "s gr%d,", j + 96); | |
1001 | for (i = 0; i < 15; ++i) | |
1002 | fprintf (adapt_stream, "%x,", read_register (GR96_REGNUM + j + i)); | |
1003 | fprintf (adapt_stream, "%x\r", read_register (GR96_REGNUM + j + 15)); | |
1004 | expect_prompt (); | |
1005 | } | |
1006 | ||
1007 | for (j = 0; j < 128; j += 16) | |
1008 | { | |
1009 | fprintf (adapt_stream, "s lr%d,", j); | |
1010 | for (i = 0; i < 15; ++i) | |
1011 | fprintf (adapt_stream, "%x,", read_register (LR0_REGNUM + j + i)); | |
1012 | fprintf (adapt_stream, "%x\r", read_register (LR0_REGNUM + j + 15)); | |
1013 | expect_prompt (); | |
1014 | } | |
1015 | ||
1016 | fprintf (adapt_stream, "s sr128,%x,%x,%x\r", read_register (IPC_REGNUM), | |
1017 | read_register (IPA_REGNUM), read_register (IPB_REGNUM)); | |
1018 | expect_prompt (); | |
1019 | fprintf (adapt_stream, "s sr133,%x,%x,%x\r", read_register (BP_REGNUM), | |
1020 | read_register (FC_REGNUM), read_register (CR_REGNUM)); | |
1021 | expect_prompt (); | |
1022 | fprintf (adapt_stream, "s sr131,%x\r", read_register (Q_REGNUM)); | |
1023 | expect_prompt (); | |
1024 | fprintf (adapt_stream, "s sr0,"); | |
1025 | for (i=0 ; i<7 ; ++i) | |
1026 | fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i)); | |
1027 | expect_prompt (); | |
1028 | fprintf (adapt_stream, "s sr7,"); | |
1029 | for (i=7; i<14 ; ++i) | |
1030 | fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i)); | |
1031 | expect_prompt (); | |
1032 | } | |
1033 | ||
1034 | /* Store register REGNO, or all if REGNO == -1. | |
1035 | Return errno value. */ | |
e95bfbf1 | 1036 | void |
7c18a68f JG |
1037 | adapt_store_register (regno) |
1038 | int regno; | |
1039 | { | |
1040 | /* printf("adapt_store_register() called.\n"); fflush(stdout); /* */ | |
1041 | if (regno == -1) | |
1042 | adapt_store_registers (); | |
1043 | else | |
1044 | { | |
1045 | char *name = get_reg_name (regno); | |
1046 | fprintf (adapt_stream, "s %s,%x\r", name, read_register (regno)); | |
1047 | /* Setting GR1 changes the numbers of all the locals, so | |
1048 | invalidate the register cache. Do this *after* calling | |
1049 | read_register, because we want read_register to return the | |
1050 | value that write_register has just stuffed into the registers | |
1051 | array, not the value of the register fetched from the | |
1052 | inferior. */ | |
1053 | if (regno == GR1_REGNUM) | |
1054 | registers_changed (); | |
1055 | expect_prompt (); | |
1056 | } | |
7c18a68f JG |
1057 | } |
1058 | ||
1059 | /* Get ready to modify the registers array. On machines which store | |
1060 | individual registers, this doesn't need to do anything. On machines | |
1061 | which store all the registers in one fell swoop, this makes sure | |
1062 | that registers contains all the registers from the program being | |
1063 | debugged. */ | |
1064 | ||
1065 | void | |
1066 | adapt_prepare_to_store () | |
1067 | { | |
1068 | /* Do nothing, since we can store individual regs */ | |
1069 | } | |
1070 | ||
1071 | static CORE_ADDR | |
1072 | translate_addr(addr) | |
1073 | CORE_ADDR addr; | |
1074 | { | |
1075 | #if defined(KERNEL_DEBUGGING) | |
1076 | /* Check for a virtual address in the kernel */ | |
1077 | /* Assume physical address of ublock is in paddr_u register */ | |
1078 | if (addr >= UVADDR) { | |
1079 | /* PADDR_U register holds the physical address of the ublock */ | |
1080 | CORE_ADDR i = (CORE_ADDR)read_register(PADDR_U_REGNUM); | |
1081 | return(i + addr - (CORE_ADDR)UVADDR); | |
1082 | } else { | |
1083 | return(addr); | |
1084 | } | |
1085 | #else | |
1086 | return(addr); | |
1087 | #endif | |
1088 | } | |
1089 | ||
1090 | ||
1091 | /* FIXME! Merge these two. */ | |
1092 | int | |
1093 | adapt_xfer_inferior_memory (memaddr, myaddr, len, write) | |
1094 | CORE_ADDR memaddr; | |
1095 | char *myaddr; | |
1096 | int len; | |
1097 | int write; | |
1098 | { | |
1099 | ||
1100 | memaddr = translate_addr(memaddr); | |
1101 | ||
1102 | if (write) | |
1103 | return adapt_write_inferior_memory (memaddr, myaddr, len); | |
1104 | else | |
1105 | return adapt_read_inferior_memory (memaddr, myaddr, len); | |
1106 | } | |
1107 | ||
1108 | void | |
1109 | adapt_files_info () | |
1110 | { | |
1111 | printf_filtered("\tAttached to %s at %d baud and running program %s\n", | |
1112 | dev_name, baudrate, prog_name); | |
1113 | printf_filtered("\ton an %s processor.\n", processor_name[processor_type]); | |
1114 | } | |
1115 | ||
1116 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
1117 | to inferior's memory at MEMADDR. Returns errno value. | |
1118 | * sb/sh instructions don't work on unaligned addresses, when TU=1. | |
1119 | */ | |
1120 | int | |
1121 | adapt_write_inferior_memory (memaddr, myaddr, len) | |
1122 | CORE_ADDR memaddr; | |
1123 | char *myaddr; | |
1124 | int len; | |
1125 | { | |
1126 | int i; | |
1127 | unsigned int cps; | |
1128 | ||
836e343b | 1129 | /* Turn TU bit off so we can do 'sb' commands */ |
7c18a68f JG |
1130 | cps = read_register(CPS_REGNUM); |
1131 | if (cps & 0x00000800) | |
1132 | write_register(CPS_REGNUM,cps&~(0x00000800)); | |
1133 | ||
1134 | for (i = 0; i < len; i++) | |
1135 | { | |
1136 | if ((i % 16) == 0) | |
1137 | fprintf (adapt_stream, "sb %x,", memaddr + i); | |
1138 | if ((i % 16) == 15 || i == len - 1) | |
1139 | { | |
1140 | fprintf (adapt_stream, "%x\r", ((unsigned char *)myaddr)[i]); | |
1141 | expect_prompt (); | |
1142 | } | |
1143 | else | |
1144 | fprintf (adapt_stream, "%x,", ((unsigned char *)myaddr)[i]); | |
1145 | } | |
1146 | /* Restore the old value of cps if the TU bit was on */ | |
1147 | if (cps & 0x00000800) | |
1148 | write_register(CPS_REGNUM,cps); | |
7c18a68f JG |
1149 | return len; |
1150 | } | |
1151 | ||
1152 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result | |
1153 | at debugger address MYADDR. Returns errno value. */ | |
1154 | int | |
1155 | adapt_read_inferior_memory(memaddr, myaddr, len) | |
1156 | CORE_ADDR memaddr; | |
1157 | char *myaddr; | |
1158 | int len; | |
1159 | { | |
1160 | int i; | |
1161 | ||
1162 | /* Number of bytes read so far. */ | |
1163 | int count; | |
1164 | ||
1165 | /* Starting address of this pass. */ | |
1166 | unsigned long startaddr; | |
1167 | ||
1168 | /* Number of bytes to read in this pass. */ | |
1169 | int len_this_pass; | |
1170 | ||
1171 | /* Note that this code works correctly if startaddr is just less | |
1172 | than UINT_MAX (well, really CORE_ADDR_MAX if there was such a | |
1173 | thing). That is, something like | |
1174 | adapt_read_bytes (CORE_ADDR_MAX - 4, foo, 4) | |
1175 | works--it never adds len to memaddr and gets 0. */ | |
1176 | /* However, something like | |
1177 | adapt_read_bytes (CORE_ADDR_MAX - 3, foo, 4) | |
1178 | doesn't need to work. Detect it and give up if there's an attempt | |
1179 | to do that. */ | |
7c18a68f JG |
1180 | |
1181 | if (((memaddr - 1) + len) < memaddr) | |
1182 | return EIO; | |
1183 | ||
1184 | startaddr = memaddr; | |
1185 | count = 0; | |
1186 | while (count < len) | |
1187 | { | |
1188 | len_this_pass = 16; | |
1189 | if ((startaddr % 16) != 0) | |
1190 | len_this_pass -= startaddr % 16; | |
1191 | if (len_this_pass > (len - count)) | |
1192 | len_this_pass = (len - count); | |
1193 | ||
1194 | fprintf (adapt_stream, "db %x,%x\r", startaddr, | |
1195 | (startaddr - 1) + len_this_pass); | |
1196 | ||
1197 | #ifdef NOTDEF /* Why do this */ | |
1198 | expect ("\n"); | |
1199 | /* Look for 8 hex digits. */ | |
1200 | i = 0; | |
1201 | while (1) | |
1202 | { | |
1203 | if (isxdigit (readchar ())) | |
1204 | ++i; | |
1205 | else | |
1206 | { | |
1207 | expect_prompt (); | |
1208 | error ("Hex digit expected from remote system."); | |
1209 | } | |
1210 | if (i >= 8) | |
1211 | break; | |
1212 | } | |
1213 | #endif /* NOTDEF */ | |
1214 | ||
1215 | expect (" "); | |
1216 | ||
1217 | for (i = 0; i < len_this_pass; i++) | |
1218 | get_hex_byte (&myaddr[count++]); | |
1219 | ||
1220 | expect_prompt (); | |
1221 | ||
1222 | startaddr += len_this_pass; | |
1223 | } | |
7c18a68f JG |
1224 | return count; |
1225 | } | |
1226 | ||
1227 | #define MAX_BREAKS 8 | |
1228 | static int num_brkpts=0; | |
1229 | static int | |
1230 | adapt_insert_breakpoint(addr, save) | |
1231 | CORE_ADDR addr; | |
1232 | char *save; /* Throw away, let adapt save instructions */ | |
1233 | { | |
7c18a68f JG |
1234 | if (num_brkpts < MAX_BREAKS) { |
1235 | num_brkpts++; | |
1236 | fprintf (adapt_stream, "B %x", addr); | |
1237 | fprintf (adapt_stream, "\r"); | |
1238 | expect_prompt (); | |
7c18a68f JG |
1239 | return(0); /* Success */ |
1240 | } else { | |
1241 | fprintf_filtered(stderr, | |
1242 | "Too many break points, break point not installed\n"); | |
7c18a68f JG |
1243 | return(1); /* Failure */ |
1244 | } | |
1245 | ||
1246 | } | |
1247 | static int | |
1248 | adapt_remove_breakpoint(addr, save) | |
1249 | CORE_ADDR addr; | |
1250 | char *save; /* Throw away, let adapt save instructions */ | |
1251 | { | |
7c18a68f JG |
1252 | if (num_brkpts > 0) { |
1253 | num_brkpts--; | |
1254 | fprintf (adapt_stream, "BR %x", addr); | |
1255 | fprintf (adapt_stream, "\r"); | |
1256 | fflush (adapt_stream); | |
1257 | expect_prompt (); | |
1258 | } | |
7c18a68f JG |
1259 | return(0); |
1260 | } | |
1261 | ||
1262 | /* Clear the adapts notion of what the break points are */ | |
1263 | static int | |
1264 | adapt_clear_breakpoints() | |
1265 | { | |
7c18a68f JG |
1266 | if (adapt_stream) { |
1267 | fprintf (adapt_stream, "BR"); /* Clear all break points */ | |
1268 | fprintf (adapt_stream, "\r"); | |
1269 | fflush(adapt_stream); | |
1270 | expect_prompt (); | |
1271 | } | |
1272 | num_brkpts = 0; | |
7c18a68f JG |
1273 | } |
1274 | static void | |
1275 | adapt_mourn() | |
1276 | { | |
7c18a68f JG |
1277 | adapt_clear_breakpoints(); |
1278 | pop_target (); /* Pop back to no-child state */ | |
1279 | generic_mourn_inferior (); | |
7c18a68f JG |
1280 | } |
1281 | ||
1282 | /* Display everthing we read in from the adapt until we match/see the | |
1283 | * specified string | |
1284 | */ | |
1285 | static int | |
1286 | display_until(str) | |
1287 | char *str; | |
1288 | { | |
1289 | int i=0,j,c; | |
1290 | ||
1291 | while (c=readchar()) { | |
1292 | if (c==str[i]) { | |
1293 | i++; | |
1294 | if (i == strlen(str)) return; | |
1295 | } else { | |
1296 | if (i) { | |
1297 | for (j=0 ; j<i ; j++) /* Put everthing we matched */ | |
1298 | putchar(str[j]); | |
1299 | i=0; | |
1300 | } | |
1301 | putchar(c); | |
1302 | } | |
1303 | } | |
1304 | ||
1305 | } | |
1306 | ||
1307 | ||
1308 | /* Put a command string, in args, out to the adapt. The adapt is assumed to | |
1309 | be in raw mode, all writing/reading done through adapt_desc. | |
1310 | Ouput from the adapt is placed on the users terminal until the | |
1311 | prompt from the adapt is seen. | |
1312 | FIXME: Can't handle commands that take input. */ | |
1313 | ||
1314 | void | |
1315 | adapt_com (args, fromtty) | |
1316 | char *args; | |
1317 | int fromtty; | |
1318 | { | |
1319 | if (!adapt_stream) { | |
1320 | printf_filtered("Adapt not open. Use the 'target' command to open.\n"); | |
1321 | return; | |
1322 | } | |
1323 | ||
1324 | /* Clear all input so only command relative output is displayed */ | |
1325 | slurp_input(); | |
1326 | ||
1327 | switch(islower(args[0]) ? toupper(args[0]) : args[0]) { | |
1328 | default: | |
1329 | printf_filtered("Unknown/Unimplemented adapt command '%s'\n",args); | |
1330 | break; | |
1331 | case 'G': /* Go, begin execution */ | |
1332 | write(adapt_desc,args,strlen(args)); | |
1333 | write(adapt_desc,"\r",1); | |
1334 | expect_prompt(); | |
1335 | break; | |
1336 | case 'B': /* Break points, B or BR */ | |
1337 | case 'C': /* Check current 29k status (running/halted) */ | |
1338 | case 'D': /* Display data/registers */ | |
1339 | case 'I': /* Input from i/o space */ | |
1340 | case 'J': /* Jam an instruction */ | |
1341 | case 'K': /* Kill, stop execution */ | |
1342 | case 'L': /* Disassemble */ | |
1343 | case 'O': /* Output to i/o space */ | |
1344 | case 'T': /* Trace */ | |
1345 | case 'P': /* Pulse an input line */ | |
1346 | case 'X': /* Examine special purpose registers */ | |
1347 | case 'Z': /* Display trace buffer */ | |
1348 | write(adapt_desc,args,strlen(args)); | |
1349 | write(adapt_desc,"\r",1); | |
1350 | expect(args); /* Don't display the command */ | |
1351 | display_until("# "); | |
1352 | break; | |
1353 | /* Begin commands that take input in the form 'c x,y[,z...]' */ | |
1354 | case 'S': /* Set memory or register */ | |
c398de0c | 1355 | if (strchr(args,',')) { /* Assume it is properly formatted */ |
7c18a68f JG |
1356 | write(adapt_desc,args,strlen(args)); |
1357 | write(adapt_desc,"\r",1); | |
1358 | expect_prompt(); | |
1359 | } | |
1360 | break; | |
1361 | } | |
1362 | } | |
1363 | ||
1364 | /* Define the target subroutine names */ | |
1365 | ||
c719b714 JM |
1366 | struct target_ops adapt_ops ; |
1367 | static void init_adapt_ops(void) | |
1368 | { | |
1369 | adapt_ops.to_shortname = "adapt"; | |
1370 | adapt_ops.to_longname = "Remote AMD `Adapt' target"; | |
1371 | adapt_ops.to_doc = "Remote debug an AMD 290*0 using an `Adapt' monitor via RS232"; | |
1372 | adapt_ops.to_open = adapt_open; | |
1373 | adapt_ops.to_close = adapt_close; | |
1374 | adapt_ops.to_attach = adapt_attach; | |
1375 | adapt_ops.to_detach = adapt_detach; | |
1376 | adapt_ops.to_resume = adapt_resume; | |
1377 | adapt_ops.to_wait = adapt_wait; | |
1378 | adapt_ops.to_fetch_registers = adapt_fetch_register; | |
1379 | adapt_ops.to_store_registers = adapt_store_register; | |
1380 | adapt_ops.to_prepare_to_store = adapt_prepare_to_store; | |
1381 | adapt_ops.to_xfer_memory = adapt_xfer_inferior_memory; | |
1382 | adapt_ops.to_files_info = adapt_files_info; | |
1383 | adapt_ops.to_insert_breakpoint = adapt_insert_breakpoint; | |
1384 | adapt_ops.to_remove_breakpoint = adapt_remove_breakpoint; | |
1385 | adapt_ops.to_terminal_init = 0; | |
1386 | adapt_ops.to_terminal_inferior = 0; | |
1387 | adapt_ops.to_terminal_ours_for_output = 0; | |
1388 | adapt_ops.to_terminal_ours = 0; | |
1389 | adapt_ops.to_terminal_info = 0; | |
1390 | adapt_ops.to_kill = adapt_kill; | |
1391 | adapt_ops.to_load = adapt_load; | |
1392 | adapt_ops.to_lookup_symbol = 0; | |
1393 | adapt_ops.to_create_inferior = adapt_create_inferior; | |
1394 | adapt_ops.to_mourn_inferior = adapt_mourn; | |
1395 | adapt_ops.to_can_run = 0; | |
1396 | adapt_ops.to_notice_signals = 0; | |
1397 | adapt_ops.to_thread_alive = 0; | |
1398 | adapt_ops.to_stop = 0 ; /* process_stratum; */ | |
1399 | adapt_ops.to_stratum = 0; | |
1400 | adapt_ops.DONT_USE = 0 ; | |
1401 | adapt_ops.to_has_all_memory = 1; | |
1402 | adapt_ops.to_has_memory = 1; | |
1403 | adapt_ops.to_has_stack = 1; | |
1404 | adapt_ops.to_has_registers = 1; | |
1405 | adapt_ops.to_has_execution = 0; | |
1406 | adapt_ops.to_sections = 0; | |
1407 | adapt_ops.to_sections_end = 0 ; | |
1408 | adapt_ops.to_magic = OPS_MAGIC; | |
1409 | } /* init_adapt_ops */ | |
7c18a68f JG |
1410 | |
1411 | void | |
1412 | _initialize_remote_adapt () | |
1413 | { | |
c719b714 | 1414 | init_adapt_ops() ; |
7c18a68f JG |
1415 | add_target (&adapt_ops); |
1416 | add_com ("adapt <command>", class_obscure, adapt_com, | |
1417 | "Send a command to the AMD Adapt remote monitor."); | |
1418 | } |