Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Remote debugging interface for AMD 290*0 Adapt Monitor Version 2.1d18. |
29e57380 | 2 | Copyright 1990, 1991, 1992, 2001 Free Software Foundation, Inc. |
c906108c SS |
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 | ||
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
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. | |
c906108c | 12 | |
c5aa993b JM |
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. | |
c906108c | 17 | |
c5aa993b JM |
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., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
22 | |
23 | /* This is like remote.c but is for an esoteric situation-- | |
24 | having a 29k board attached to an Adapt inline monitor. | |
25 | The monitor is connected via serial line to a unix machine | |
26 | running gdb. | |
27 | ||
28 | 3/91 - developed on Sun3 OS 4.1, by David Wood | |
c5aa993b JM |
29 | o - I can't get binary coff to load. |
30 | o - I can't get 19200 baud rate to work. | |
c906108c SS |
31 | 7/91 o - Freeze mode tracing can be done on a 29050. */ |
32 | ||
33 | ||
34 | ||
35 | #include "defs.h" | |
36 | #include "gdb_string.h" | |
37 | #include "inferior.h" | |
c906108c SS |
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 | ||
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. | |
c5aa993b | 50 | */ |
c906108c SS |
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 | |
c5aa993b JM |
76 | extern int a29k_freeze_mode; |
77 | extern int processor_type; | |
78 | extern char *processor_name; | |
c906108c SS |
79 | #endif |
80 | ||
81 | /* External data declarations */ | |
c5aa993b | 82 | extern int stop_soon_quietly; /* for wait_for_inferior */ |
c906108c SS |
83 | |
84 | /* Forward data declarations */ | |
c5aa993b | 85 | extern struct target_ops adapt_ops; /* Forward declaration */ |
c906108c SS |
86 | |
87 | /* Forward function declarations */ | |
88 | static void adapt_fetch_registers (); | |
89 | static void adapt_store_registers (); | |
90 | static void adapt_close (); | |
c5aa993b | 91 | static int adapt_clear_breakpoints (); |
c906108c | 92 | |
c5aa993b | 93 | #define FREEZE_MODE (read_register(CPS_REGNUM) && 0x400) |
c906108c SS |
94 | #define USE_SHADOW_PC ((processor_type == a29k_freeze_mode) && FREEZE_MODE) |
95 | ||
96 | /* Can't seem to get binary coff working */ | |
97 | #define ASCII_COFF /* Adapt will be downloaded with ascii coff */ | |
98 | ||
99 | /* FIXME: Replace with `set remotedebug'. */ | |
100 | #define LOG_FILE "adapt.log" | |
101 | #if defined (LOG_FILE) | |
c5aa993b | 102 | FILE *log_file = NULL; |
c906108c SS |
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 | |
fba45db2 | 120 | rawmode (int desc, int turnon) |
c906108c | 121 | { |
c5aa993b | 122 | |
c906108c SS |
123 | TERMINAL sg; |
124 | ||
125 | if (desc < 0) | |
126 | return; | |
127 | ||
128 | ioctl (desc, TIOCGETP, &sg); | |
129 | ||
c5aa993b JM |
130 | if (turnon) |
131 | { | |
c906108c | 132 | #ifdef HAVE_TERMIO |
c5aa993b | 133 | sg.c_lflag &= ~(ICANON); |
c906108c | 134 | #else |
c5aa993b | 135 | sg.sg_flags |= RAW; |
c906108c | 136 | #endif |
c5aa993b JM |
137 | } |
138 | else | |
139 | { | |
c906108c | 140 | #ifdef HAVE_TERMIO |
c5aa993b | 141 | sg.c_lflag |= ICANON; |
c906108c | 142 | #else |
c5aa993b | 143 | sg.sg_flags &= ~(RAW); |
c906108c | 144 | #endif |
c5aa993b | 145 | } |
c906108c SS |
146 | ioctl (desc, TIOCSETP, &sg); |
147 | } | |
148 | ||
149 | /* Suck up all the input from the adapt */ | |
fba45db2 | 150 | slurp_input (void) |
c906108c SS |
151 | { |
152 | char buf[8]; | |
153 | ||
154 | #ifdef HAVE_TERMIO | |
155 | /* termio does the timeout for us. */ | |
156 | while (read (adapt_desc, buf, 8) > 0); | |
157 | #else | |
158 | alarm (timeout); | |
159 | while (read (adapt_desc, buf, 8) > 0); | |
160 | alarm (0); | |
161 | #endif | |
162 | } | |
163 | ||
164 | /* Read a character from the remote system, doing all the fancy | |
165 | timeout stuff. */ | |
166 | static int | |
fba45db2 | 167 | readchar (void) |
c906108c SS |
168 | { |
169 | char buf; | |
170 | ||
171 | buf = '\0'; | |
172 | #ifdef HAVE_TERMIO | |
173 | /* termio does the timeout for us. */ | |
174 | read (adapt_desc, &buf, 1); | |
175 | #else | |
176 | alarm (timeout); | |
177 | if (read (adapt_desc, &buf, 1) < 0) | |
178 | { | |
179 | if (errno == EINTR) | |
180 | error ("Timeout reading from remote system."); | |
181 | else | |
182 | perror_with_name ("remote"); | |
183 | } | |
184 | alarm (0); | |
185 | #endif | |
186 | ||
187 | if (buf == '\0') | |
188 | error ("Timeout reading from remote system."); | |
189 | #if defined (LOG_FILE) | |
190 | putc (buf & 0x7f, log_file); | |
191 | #endif | |
192 | return buf & 0x7f; | |
193 | } | |
194 | ||
195 | /* Keep discarding input from the remote system, until STRING is found. | |
196 | Let the user break out immediately. */ | |
197 | static void | |
fba45db2 | 198 | expect (char *string) |
c906108c SS |
199 | { |
200 | char *p = string; | |
201 | ||
c5aa993b | 202 | fflush (adapt_stream); |
8edbea78 | 203 | immediate_quit++; |
c906108c SS |
204 | while (1) |
205 | { | |
c5aa993b | 206 | if (readchar () == *p) |
c906108c SS |
207 | { |
208 | p++; | |
209 | if (*p == '\0') | |
210 | { | |
8edbea78 | 211 | immediate_quit--; |
c906108c SS |
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 | |
fba45db2 | 235 | expect_prompt (void) |
c906108c SS |
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 | |
c5aa993b | 242 | fflush (adapt_stream); |
c906108c SS |
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 | |
fba45db2 | 249 | get_hex_digit (int ignore_space) |
c906108c SS |
250 | { |
251 | int ch; | |
252 | while (1) | |
253 | { | |
254 | ch = readchar (); | |
255 | if (ch >= '0' && ch <= '9') | |
256 | return ch - '0'; | |
257 | else if (ch >= 'A' && ch <= 'F') | |
258 | return ch - 'A' + 10; | |
259 | else if (ch >= 'a' && ch <= 'f') | |
260 | return ch - 'a' + 10; | |
261 | else if (ch == ' ' && ignore_space) | |
262 | ; | |
263 | else | |
264 | { | |
265 | expect_prompt (); | |
266 | error ("Invalid hex digit from remote system."); | |
267 | } | |
268 | } | |
269 | } | |
270 | ||
271 | /* Get a byte from adapt_desc and put it in *BYT. Accept any number | |
272 | leading spaces. */ | |
273 | static void | |
fba45db2 | 274 | get_hex_byte (char *byt) |
c906108c SS |
275 | { |
276 | int val; | |
277 | ||
278 | val = get_hex_digit (1) << 4; | |
279 | val |= get_hex_digit (0); | |
280 | *byt = val; | |
281 | } | |
282 | ||
283 | /* Read a 32-bit hex word from the adapt, preceded by a space */ | |
c5aa993b | 284 | static long |
fba45db2 | 285 | get_hex_word (void) |
c906108c SS |
286 | { |
287 | long val; | |
288 | int j; | |
c5aa993b | 289 | |
c906108c SS |
290 | val = 0; |
291 | for (j = 0; j < 8; j++) | |
c5aa993b | 292 | val = (val << 4) + get_hex_digit (j == 0); |
c906108c SS |
293 | return val; |
294 | } | |
295 | /* Get N 32-bit hex words from remote, each preceded by a space | |
296 | and put them in registers starting at REGNO. */ | |
297 | static void | |
fba45db2 | 298 | get_hex_regs (int n, int regno) |
c906108c | 299 | { |
c5aa993b JM |
300 | long val; |
301 | while (n--) | |
302 | { | |
303 | val = get_hex_word (); | |
304 | supply_register (regno++, (char *) &val); | |
305 | } | |
c906108c SS |
306 | } |
307 | /* Called when SIGALRM signal sent due to alarm() timeout. */ | |
308 | #ifndef HAVE_TERMIO | |
309 | ||
310 | #ifndef __STDC__ | |
c5aa993b JM |
311 | #ifndef volatile |
312 | #define volatile | |
313 | /**/ | |
c906108c SS |
314 | # endif |
315 | #endif | |
316 | volatile int n_alarms; | |
317 | ||
318 | void | |
fba45db2 | 319 | adapt_timer (void) |
c906108c SS |
320 | { |
321 | #if 0 | |
322 | if (kiodebug) | |
323 | printf ("adapt_timer called\n"); | |
324 | #endif | |
325 | n_alarms++; | |
326 | } | |
327 | #endif | |
328 | ||
329 | /* malloc'd name of the program on the remote system. */ | |
330 | static char *prog_name = NULL; | |
331 | ||
332 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
333 | NEED_ARTIFICIAL_TRAP calls to adapt_wait should just return | |
334 | SIGTRAP without actually waiting for anything. */ | |
335 | ||
336 | static int need_artificial_trap = 0; | |
337 | ||
338 | void | |
fba45db2 | 339 | adapt_kill (char *arg, int from_tty) |
c906108c | 340 | { |
c5aa993b JM |
341 | fprintf (adapt_stream, "K"); |
342 | fprintf (adapt_stream, "\r"); | |
343 | expect_prompt (); | |
c906108c SS |
344 | } |
345 | /* | |
346 | * Download a file specified in 'args', to the adapt. | |
347 | * FIXME: Assumes the file to download is a binary coff file. | |
348 | */ | |
349 | static void | |
fba45db2 | 350 | adapt_load (char *args, int fromtty) |
c906108c | 351 | { |
c5aa993b JM |
352 | FILE *fp; |
353 | int n; | |
354 | char buffer[1024]; | |
c906108c | 355 | |
c5aa993b JM |
356 | if (!adapt_stream) |
357 | { | |
358 | printf_filtered ("Adapt not open. Use 'target' command to open adapt\n"); | |
359 | return; | |
360 | } | |
361 | ||
362 | /* OK, now read in the file. Y=read, C=COFF, T=dTe port | |
363 | 0=start address. */ | |
364 | ||
365 | #ifdef ASCII_COFF /* Ascii coff */ | |
366 | fprintf (adapt_stream, "YA T,0\r"); | |
367 | fflush (adapt_stream); /* Just in case */ | |
368 | /* FIXME: should check args for only 1 argument */ | |
369 | sprintf (buffer, "cat %s | btoa > /tmp/#adapt-btoa", args); | |
370 | system (buffer); | |
371 | fp = fopen ("/tmp/#adapt-btoa", "r"); | |
372 | rawmode (adapt_desc, OFF); | |
373 | while (n = fread (buffer, 1, 1024, fp)) | |
374 | { | |
375 | do | |
376 | { | |
377 | n -= write (adapt_desc, buffer, n); | |
c906108c | 378 | } |
c5aa993b JM |
379 | while (n > 0); |
380 | if (n < 0) | |
381 | { | |
382 | perror ("writing ascii coff"); | |
383 | break; | |
c906108c | 384 | } |
c5aa993b JM |
385 | } |
386 | fclose (fp); | |
387 | rawmode (adapt_desc, ON); | |
388 | system ("rm /tmp/#adapt-btoa"); | |
389 | #else /* Binary coff - can't get it to work . */ | |
390 | fprintf (adapt_stream, "YC T,0\r"); | |
391 | fflush (adapt_stream); /* Just in case */ | |
392 | if (!(fp = fopen (args, "r"))) | |
393 | { | |
394 | printf_filtered ("Can't open %s\n", args); | |
395 | return; | |
396 | } | |
397 | while (n = fread (buffer, 1, 512, fp)) | |
398 | { | |
399 | do | |
400 | { | |
401 | n -= write (adapt_desc, buffer, n); | |
c906108c | 402 | } |
c5aa993b JM |
403 | while (n > 0); |
404 | if (n < 0) | |
405 | { | |
406 | perror ("writing ascii coff"); | |
407 | break; | |
408 | } | |
409 | } | |
410 | fclose (fp); | |
c906108c | 411 | #endif |
c5aa993b JM |
412 | expect_prompt (); /* Skip garbage that comes out */ |
413 | fprintf (adapt_stream, "\r"); | |
414 | expect_prompt (); | |
c906108c SS |
415 | } |
416 | ||
417 | /* This is called not only when we first attach, but also when the | |
418 | user types "run" after having attached. */ | |
419 | void | |
fba45db2 | 420 | adapt_create_inferior (char *execfile, char *args, char **env) |
c906108c SS |
421 | { |
422 | int entry_pt; | |
423 | ||
424 | if (args && *args) | |
425 | error ("Can't pass arguments to remote adapt process."); | |
426 | ||
427 | if (execfile == 0 || exec_bfd == 0) | |
428 | error ("No executable file specified"); | |
429 | ||
430 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
431 | ||
c5aa993b JM |
432 | if (adapt_stream) |
433 | { | |
434 | adapt_kill (NULL, NULL); | |
435 | adapt_clear_breakpoints (); | |
436 | init_wait_for_inferior (); | |
437 | /* Clear the input because what the adapt sends back is different | |
438 | * depending on whether it was running or not. | |
439 | */ | |
440 | slurp_input (); /* After this there should be a prompt */ | |
441 | fprintf (adapt_stream, "\r"); | |
442 | expect_prompt (); | |
443 | printf_filtered ("Do you want to download '%s' (y/n)? [y] : ", prog_name); | |
444 | { | |
445 | char buffer[10]; | |
446 | gets (buffer); | |
447 | if (*buffer != 'n') | |
448 | { | |
449 | adapt_load (prog_name, 0); | |
450 | } | |
451 | } | |
c906108c SS |
452 | |
453 | #ifdef NOTDEF | |
c5aa993b JM |
454 | /* Set the PC and wait for a go/cont */ |
455 | fprintf (adapt_stream, "G %x,N\r", entry_pt); | |
456 | printf_filtered ("Now use the 'continue' command to start.\n"); | |
457 | expect_prompt (); | |
c906108c | 458 | #else |
c5aa993b JM |
459 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
460 | proceed (entry_pt, TARGET_SIGNAL_DEFAULT, 0); | |
c906108c SS |
461 | #endif |
462 | ||
c5aa993b JM |
463 | } |
464 | else | |
465 | { | |
466 | printf_filtered ("Adapt not open yet.\n"); | |
467 | } | |
c906108c SS |
468 | } |
469 | ||
470 | /* Translate baud rates from integers to damn B_codes. Unix should | |
471 | have outgrown this crap years ago, but even POSIX wouldn't buck it. */ | |
472 | ||
473 | #ifndef B19200 | |
474 | #define B19200 EXTA | |
475 | #endif | |
476 | #ifndef B38400 | |
477 | #define B38400 EXTB | |
478 | #endif | |
479 | ||
c5aa993b JM |
480 | static struct |
481 | { | |
482 | int rate, damn_b; | |
483 | } | |
484 | baudtab[] = | |
485 | { | |
486 | { | |
487 | 0, B0 | |
488 | } | |
489 | , | |
490 | { | |
491 | 50, B50 | |
492 | } | |
493 | , | |
494 | { | |
495 | 75, B75 | |
496 | } | |
497 | , | |
498 | { | |
499 | 110, B110 | |
500 | } | |
501 | , | |
502 | { | |
503 | 134, B134 | |
504 | } | |
505 | , | |
506 | { | |
507 | 150, B150 | |
508 | } | |
509 | , | |
510 | { | |
511 | 200, B200 | |
512 | } | |
513 | , | |
514 | { | |
515 | 300, B300 | |
516 | } | |
517 | , | |
518 | { | |
519 | 600, B600 | |
520 | } | |
521 | , | |
522 | { | |
523 | 1200, B1200 | |
524 | } | |
525 | , | |
526 | { | |
527 | 1800, B1800 | |
528 | } | |
529 | , | |
530 | { | |
531 | 2400, B2400 | |
532 | } | |
533 | , | |
534 | { | |
535 | 4800, B4800 | |
536 | } | |
537 | , | |
538 | { | |
539 | 9600, B9600 | |
540 | } | |
541 | , | |
542 | { | |
543 | 19200, B19200 | |
544 | } | |
545 | , | |
546 | { | |
547 | 38400, B38400 | |
548 | } | |
549 | , | |
550 | { | |
551 | -1, -1 | |
552 | } | |
553 | , | |
c906108c SS |
554 | }; |
555 | ||
c5aa993b | 556 | static int |
fba45db2 | 557 | damn_b (int rate) |
c906108c SS |
558 | { |
559 | int i; | |
560 | ||
561 | for (i = 0; baudtab[i].rate != -1; i++) | |
c5aa993b JM |
562 | if (rate == baudtab[i].rate) |
563 | return baudtab[i].damn_b; | |
564 | return B38400; /* Random */ | |
c906108c SS |
565 | } |
566 | ||
567 | ||
568 | /* Open a connection to a remote debugger. | |
569 | NAME is the filename used for communication, then a space, | |
570 | then the baud rate. | |
571 | */ | |
572 | ||
573 | static int baudrate = 9600; | |
574 | static void | |
fba45db2 | 575 | adapt_open (char *name, int from_tty) |
c906108c SS |
576 | { |
577 | TERMINAL sg; | |
578 | unsigned int prl; | |
579 | char *p; | |
580 | ||
581 | /* Find the first whitespace character, it separates dev_name from | |
582 | prog_name. */ | |
583 | if (name == 0) | |
584 | goto erroid; | |
585 | ||
586 | for (p = name; | |
587 | *p != '\0' && !isspace (*p); p++) | |
588 | ; | |
589 | if (*p == '\0') | |
c5aa993b | 590 | erroid: |
c906108c SS |
591 | error ("\ |
592 | Please include the name of the device for the serial port,\n\ | |
593 | the baud rate, and the name of the program to run on the remote system."); | |
c5aa993b | 594 | dev_name = (char *) xmalloc (p - name + 1); |
c906108c SS |
595 | strncpy (dev_name, name, p - name); |
596 | dev_name[p - name] = '\0'; | |
597 | ||
598 | /* Skip over the whitespace after dev_name */ | |
599 | for (; isspace (*p); p++) | |
c5aa993b JM |
600 | /*EMPTY */ ; |
601 | ||
c906108c SS |
602 | if (1 != sscanf (p, "%d ", &baudrate)) |
603 | goto erroid; | |
604 | ||
605 | /* Skip the number and then the spaces */ | |
606 | for (; isdigit (*p); p++) | |
c5aa993b | 607 | /*EMPTY */ ; |
c906108c | 608 | for (; isspace (*p); p++) |
c5aa993b JM |
609 | /*EMPTY */ ; |
610 | ||
c906108c | 611 | if (prog_name != NULL) |
b8c9b27d | 612 | xfree (prog_name); |
c906108c SS |
613 | prog_name = savestring (p, strlen (p)); |
614 | ||
615 | adapt_close (0); | |
616 | ||
617 | adapt_desc = open (dev_name, O_RDWR); | |
618 | if (adapt_desc < 0) | |
619 | perror_with_name (dev_name); | |
620 | ioctl (adapt_desc, TIOCGETP, &sg); | |
c5aa993b | 621 | #if ! defined(COMPILE_CHECK) |
c906108c SS |
622 | #ifdef HAVE_TERMIO |
623 | sg.c_cc[VMIN] = 0; /* read with timeout. */ | |
624 | sg.c_cc[VTIME] = timeout * 10; | |
625 | sg.c_lflag &= ~(ICANON | ECHO); | |
626 | sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate); | |
627 | #else | |
628 | sg.sg_ispeed = damn_b (baudrate); | |
629 | sg.sg_ospeed = damn_b (baudrate); | |
630 | sg.sg_flags |= RAW | ANYP; | |
631 | sg.sg_flags &= ~ECHO; | |
632 | #endif | |
633 | ||
634 | ioctl (adapt_desc, TIOCSETP, &sg); | |
635 | adapt_stream = fdopen (adapt_desc, "r+"); | |
636 | #endif /* compile_check */ | |
637 | push_target (&adapt_ops); | |
638 | ||
639 | #ifndef HAVE_TERMIO | |
640 | #ifndef NO_SIGINTERRUPT | |
641 | /* Cause SIGALRM's to make reads fail with EINTR instead of resuming | |
642 | the read. */ | |
643 | if (siginterrupt (SIGALRM, 1) != 0) | |
644 | perror ("adapt_open: error in siginterrupt"); | |
645 | #endif | |
646 | ||
647 | /* Set up read timeout timer. */ | |
648 | if ((void (*)) signal (SIGALRM, adapt_timer) == (void (*)) -1) | |
649 | perror ("adapt_open: error in signal"); | |
650 | #endif | |
651 | ||
652 | #if defined (LOG_FILE) | |
653 | log_file = fopen (LOG_FILE, "w"); | |
654 | if (log_file == NULL) | |
655 | perror_with_name (LOG_FILE); | |
656 | #endif | |
657 | ||
658 | /* Put this port into NORMAL mode, send the 'normal' character */ | |
c5aa993b JM |
659 | write (adapt_desc, "\ 1", 1); /* Control A */ |
660 | write (adapt_desc, "\r", 1); | |
c906108c | 661 | expect_prompt (); |
c5aa993b | 662 | |
c906108c SS |
663 | /* Hello? Are you there? */ |
664 | write (adapt_desc, "\r", 1); | |
c5aa993b | 665 | |
c906108c SS |
666 | expect_prompt (); |
667 | ||
668 | /* Clear any break points */ | |
c5aa993b | 669 | adapt_clear_breakpoints (); |
c906108c SS |
670 | |
671 | /* Print out some stuff, letting the user now what's going on */ | |
c5aa993b JM |
672 | printf_filtered ("Connected to an Adapt via %s.\n", dev_name); |
673 | /* FIXME: can this restriction be removed? */ | |
674 | printf_filtered ("Remote debugging using virtual addresses works only\n"); | |
675 | printf_filtered ("\twhen virtual addresses map 1:1 to physical addresses.\n"); | |
676 | if (processor_type != a29k_freeze_mode) | |
677 | { | |
678 | fprintf_filtered (gdb_stderr, | |
679 | "Freeze-mode debugging not available, and can only be done on an A29050.\n"); | |
680 | } | |
c906108c SS |
681 | } |
682 | ||
683 | /* Close out all files and local state before this target loses control. */ | |
684 | ||
685 | static void | |
fba45db2 | 686 | adapt_close (int quitting) |
c906108c SS |
687 | { |
688 | ||
689 | /* Clear any break points */ | |
c5aa993b | 690 | adapt_clear_breakpoints (); |
c906108c | 691 | |
c5aa993b JM |
692 | /* Put this port back into REMOTE mode */ |
693 | if (adapt_stream) | |
694 | { | |
695 | fflush (adapt_stream); | |
696 | sleep (1); /* Let any output make it all the way back */ | |
697 | write (adapt_desc, "R\r", 2); | |
698 | } | |
c906108c SS |
699 | |
700 | /* Due to a bug in Unix, fclose closes not only the stdio stream, | |
701 | but also the file descriptor. So we don't actually close | |
702 | adapt_desc. */ | |
703 | if (adapt_stream) | |
704 | fclose (adapt_stream); /* This also closes adapt_desc */ | |
705 | if (adapt_desc >= 0) | |
706 | /* close (adapt_desc); */ | |
707 | ||
c5aa993b JM |
708 | /* Do not try to close adapt_desc again, later in the program. */ |
709 | adapt_stream = NULL; | |
c906108c SS |
710 | adapt_desc = -1; |
711 | ||
712 | #if defined (LOG_FILE) | |
c5aa993b JM |
713 | if (log_file) |
714 | { | |
715 | if (ferror (log_file)) | |
716 | printf_filtered ("Error writing log file.\n"); | |
717 | if (fclose (log_file) != 0) | |
718 | printf_filtered ("Error closing log file.\n"); | |
719 | log_file = NULL; | |
720 | } | |
c906108c SS |
721 | #endif |
722 | } | |
723 | ||
724 | /* Attach to the target that is already loaded and possibly running */ | |
725 | static void | |
fba45db2 | 726 | adapt_attach (char *args, int from_tty) |
c906108c SS |
727 | { |
728 | ||
729 | if (from_tty) | |
c5aa993b | 730 | printf_filtered ("Attaching to remote program %s.\n", prog_name); |
c906108c SS |
731 | |
732 | /* Send the adapt a kill. It is ok if it is not already running */ | |
c5aa993b JM |
733 | fprintf (adapt_stream, "K\r"); |
734 | fflush (adapt_stream); | |
735 | expect_prompt (); /* Slurp the echo */ | |
c906108c SS |
736 | } |
737 | ||
738 | ||
739 | /* Terminate the open connection to the remote debugger. | |
740 | Use this when you want to detach and do something else | |
741 | with your gdb. */ | |
742 | void | |
fba45db2 | 743 | adapt_detach (char *args, int from_tty) |
c906108c SS |
744 | { |
745 | ||
c5aa993b JM |
746 | if (adapt_stream) |
747 | { /* Send it on its way (tell it to continue) */ | |
748 | adapt_clear_breakpoints (); | |
749 | fprintf (adapt_stream, "G\r"); | |
750 | } | |
751 | ||
752 | pop_target (); /* calls adapt_close to do the real work */ | |
c906108c SS |
753 | if (from_tty) |
754 | printf_filtered ("Ending remote %s debugging\n", target_shortname); | |
755 | } | |
c5aa993b | 756 | |
c906108c SS |
757 | /* Tell the remote machine to resume. */ |
758 | ||
759 | void | |
fba45db2 | 760 | adapt_resume (int pid, int step, enum target_signal sig) |
c906108c | 761 | { |
c5aa993b | 762 | if (step) |
c906108c SS |
763 | { |
764 | write (adapt_desc, "t 1,s\r", 6); | |
765 | /* Wait for the echo. */ | |
766 | expect ("t 1,s\r\n"); | |
767 | /* Then comes a line containing the instruction we stepped to. */ | |
768 | expect ("@"); | |
769 | /* Then we get the prompt. */ | |
770 | expect_prompt (); | |
771 | ||
772 | /* Force the next adapt_wait to return a trap. Not doing anything | |
773 | about I/O from the target means that the user has to type | |
774 | "continue" to see any. FIXME, this should be fixed. */ | |
775 | need_artificial_trap = 1; | |
776 | } | |
777 | else | |
778 | { | |
779 | write (adapt_desc, "G\r", 2); | |
780 | /* Swallow the echo. */ | |
c5aa993b | 781 | expect_prompt (); |
c906108c SS |
782 | } |
783 | } | |
784 | ||
785 | /* Wait until the remote machine stops, then return, | |
786 | storing status in STATUS just as `wait' would. */ | |
787 | ||
788 | int | |
fba45db2 | 789 | adapt_wait (struct target_waitstatus *status) |
c906108c SS |
790 | { |
791 | /* Strings to look for. '?' means match any single character. | |
792 | Note that with the algorithm we use, the initial character | |
793 | of the string cannot recur in the string, or we will not | |
794 | find some cases of the string in the input. */ | |
c5aa993b | 795 | |
c906108c SS |
796 | static char bpt[] = "@"; |
797 | /* It would be tempting to look for "\n[__exit + 0x8]\n" | |
798 | but that requires loading symbols with "yc i" and even if | |
799 | we did do that we don't know that the file has symbols. */ | |
800 | static char exitmsg[] = "@????????I JMPTI GR121,LR0"; | |
801 | char *bp = bpt; | |
802 | char *ep = exitmsg; | |
803 | ||
804 | /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */ | |
805 | char swallowed[50]; | |
806 | /* Current position in swallowed. */ | |
807 | char *swallowed_p = swallowed; | |
808 | ||
809 | int ch; | |
810 | int ch_handled; | |
811 | int old_timeout = timeout; | |
812 | int old_immediate_quit = immediate_quit; | |
813 | ||
814 | status->kind = TARGET_WAITKIND_EXITED; | |
815 | status->value.integer = 0; | |
816 | ||
817 | if (need_artificial_trap != 0) | |
818 | { | |
819 | status->kind = TARGET_WAITKIND_STOPPED; | |
820 | status->value.sig = TARGET_SIGNAL_TRAP; | |
821 | need_artificial_trap--; | |
822 | return 0; | |
823 | } | |
824 | ||
c5aa993b JM |
825 | timeout = 0; /* Don't time out -- user program is running. */ |
826 | immediate_quit = 1; /* Helps ability to QUIT */ | |
827 | while (1) | |
828 | { | |
829 | QUIT; /* Let user quit and leave process running */ | |
c906108c SS |
830 | ch_handled = 0; |
831 | ch = readchar (); | |
c5aa993b JM |
832 | if (ch == *bp) |
833 | { | |
c906108c SS |
834 | bp++; |
835 | if (*bp == '\0') | |
836 | break; | |
837 | ch_handled = 1; | |
838 | ||
839 | *swallowed_p++ = ch; | |
c5aa993b JM |
840 | } |
841 | else | |
c906108c | 842 | bp = bpt; |
c5aa993b JM |
843 | if (ch == *ep || *ep == '?') |
844 | { | |
c906108c SS |
845 | ep++; |
846 | if (*ep == '\0') | |
847 | break; | |
848 | ||
849 | if (!ch_handled) | |
850 | *swallowed_p++ = ch; | |
851 | ch_handled = 1; | |
c5aa993b JM |
852 | } |
853 | else | |
c906108c | 854 | ep = exitmsg; |
c5aa993b JM |
855 | if (!ch_handled) |
856 | { | |
c906108c SS |
857 | char *p; |
858 | /* Print out any characters which have been swallowed. */ | |
859 | for (p = swallowed; p < swallowed_p; ++p) | |
860 | putc (*p, stdout); | |
861 | swallowed_p = swallowed; | |
862 | putc (ch, stdout); | |
c5aa993b JM |
863 | } |
864 | } | |
c906108c | 865 | expect_prompt (); |
c5aa993b | 866 | if (*bp == '\0') |
c906108c SS |
867 | { |
868 | status->kind = TARGET_WAITKIND_STOPPED; | |
869 | status->value.sig = TARGET_SIGNAL_TRAP; | |
870 | } | |
871 | else | |
872 | { | |
873 | status->kind = TARGET_WAITKIND_EXITED; | |
874 | status->value.integer = 0; | |
875 | } | |
876 | timeout = old_timeout; | |
877 | immediate_quit = old_immediate_quit; | |
878 | return 0; | |
879 | } | |
880 | ||
881 | /* Return the name of register number REGNO | |
882 | in the form input and output by adapt. | |
883 | ||
884 | Returns a pointer to a static buffer containing the answer. */ | |
885 | static char * | |
fba45db2 | 886 | get_reg_name (int regno) |
c906108c SS |
887 | { |
888 | static char buf[80]; | |
c5aa993b | 889 | if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32) |
c906108c SS |
890 | sprintf (buf, "GR%03d", regno - GR96_REGNUM + 96); |
891 | #if defined(GR64_REGNUM) | |
c5aa993b | 892 | else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32) |
c906108c SS |
893 | sprintf (buf, "GR%03d", regno - GR64_REGNUM + 64); |
894 | #endif | |
895 | else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128) | |
896 | sprintf (buf, "LR%03d", regno - LR0_REGNUM); | |
c5aa993b | 897 | else if (regno == Q_REGNUM) |
c906108c SS |
898 | strcpy (buf, "SR131"); |
899 | else if (regno >= BP_REGNUM && regno <= CR_REGNUM) | |
900 | sprintf (buf, "SR%03d", regno - BP_REGNUM + 133); | |
901 | else if (regno == ALU_REGNUM) | |
902 | strcpy (buf, "SR132"); | |
903 | else if (regno >= IPC_REGNUM && regno <= IPB_REGNUM) | |
904 | sprintf (buf, "SR%03d", regno - IPC_REGNUM + 128); | |
c5aa993b JM |
905 | else if (regno >= VAB_REGNUM && regno <= LRU_REGNUM) |
906 | { | |
907 | /* When a 29050 is in freeze-mode, read shadow pcs instead */ | |
908 | if ((regno >= NPC_REGNUM && regno <= PC2_REGNUM) && USE_SHADOW_PC) | |
909 | sprintf (buf, "SR%03d", regno - NPC_REGNUM + 20); | |
910 | else | |
911 | sprintf (buf, "SR%03d", regno - VAB_REGNUM); | |
912 | } | |
c906108c SS |
913 | else if (regno == GR1_REGNUM) |
914 | strcpy (buf, "GR001"); | |
915 | return buf; | |
916 | } | |
917 | ||
918 | /* Read the remote registers. */ | |
919 | ||
920 | static void | |
fba45db2 | 921 | adapt_fetch_registers (void) |
c906108c SS |
922 | { |
923 | int reg_index; | |
924 | int regnum_index; | |
925 | char tempbuf[10]; | |
c5aa993b JM |
926 | int sreg_buf[16]; |
927 | int i, j; | |
c906108c SS |
928 | |
929 | /* | |
930 | * Global registers | |
931 | */ | |
932 | #if defined(GR64_REGNUM) | |
933 | write (adapt_desc, "dw gr64,gr95\r", 13); | |
934 | for (reg_index = 64, regnum_index = GR64_REGNUM; | |
935 | reg_index < 96; | |
936 | reg_index += 4, regnum_index += 4) | |
937 | { | |
938 | sprintf (tempbuf, "GR%03d ", reg_index); | |
939 | expect (tempbuf); | |
940 | get_hex_regs (4, regnum_index); | |
941 | expect ("\n"); | |
942 | } | |
943 | #endif | |
944 | write (adapt_desc, "dw gr96,gr127\r", 14); | |
945 | for (reg_index = 96, regnum_index = GR96_REGNUM; | |
946 | reg_index < 128; | |
947 | reg_index += 4, regnum_index += 4) | |
948 | { | |
949 | sprintf (tempbuf, "GR%03d ", reg_index); | |
950 | expect (tempbuf); | |
951 | get_hex_regs (4, regnum_index); | |
952 | expect ("\n"); | |
953 | } | |
954 | ||
955 | /* | |
956 | * Local registers | |
957 | */ | |
958 | for (i = 0; i < 128; i += 32) | |
959 | { | |
960 | /* The PC has a tendency to hang if we get these | |
c5aa993b | 961 | all in one fell swoop ("dw lr0,lr127"). */ |
c906108c SS |
962 | sprintf (tempbuf, "dw lr%d\r", i); |
963 | write (adapt_desc, tempbuf, strlen (tempbuf)); | |
964 | for (reg_index = i, regnum_index = LR0_REGNUM + i; | |
965 | reg_index < i + 32; | |
966 | reg_index += 4, regnum_index += 4) | |
967 | { | |
968 | sprintf (tempbuf, "LR%03d ", reg_index); | |
969 | expect (tempbuf); | |
970 | get_hex_regs (4, regnum_index); | |
971 | expect ("\n"); | |
972 | } | |
973 | } | |
974 | ||
975 | /* | |
976 | * Special registers | |
977 | */ | |
978 | sprintf (tempbuf, "dw sr0\r"); | |
979 | write (adapt_desc, tempbuf, strlen (tempbuf)); | |
c5aa993b JM |
980 | for (i = 0; i < 4; i++) |
981 | { /* SR0 - SR14 */ | |
982 | sprintf (tempbuf, "SR%3d", i * 4); | |
983 | expect (tempbuf); | |
984 | for (j = 0; j < (i == 3 ? 3 : 4); j++) | |
985 | sreg_buf[i * 4 + j] = get_hex_word (); | |
986 | } | |
987 | expect_prompt (); | |
c906108c SS |
988 | /* |
989 | * Read the pcs individually if we are in freeze mode. | |
990 | * See get_reg_name(), it translates the register names for the pcs to | |
991 | * the names of the shadow pcs. | |
c5aa993b JM |
992 | */ |
993 | if (USE_SHADOW_PC) | |
994 | { | |
995 | sreg_buf[10] = read_register (NPC_REGNUM); /* pc0 */ | |
996 | sreg_buf[11] = read_register (PC_REGNUM); /* pc1 */ | |
997 | sreg_buf[12] = read_register (PC2_REGNUM); /* pc2 */ | |
998 | } | |
999 | for (i = 0; i < 14; i++) /* Supply vab -> lru */ | |
1000 | supply_register (VAB_REGNUM + i, (char *) &sreg_buf[i]); | |
c906108c SS |
1001 | sprintf (tempbuf, "dw sr128\r"); |
1002 | write (adapt_desc, tempbuf, strlen (tempbuf)); | |
c5aa993b JM |
1003 | for (i = 0; i < 2; i++) |
1004 | { /* SR128 - SR135 */ | |
1005 | sprintf (tempbuf, "SR%3d", 128 + i * 4); | |
1006 | expect (tempbuf); | |
1007 | for (j = 0; j < 4; j++) | |
1008 | sreg_buf[i * 4 + j] = get_hex_word (); | |
1009 | } | |
1010 | expect_prompt (); | |
1011 | supply_register (IPC_REGNUM, (char *) &sreg_buf[0]); | |
1012 | supply_register (IPA_REGNUM, (char *) &sreg_buf[1]); | |
1013 | supply_register (IPB_REGNUM, (char *) &sreg_buf[2]); | |
1014 | supply_register (Q_REGNUM, (char *) &sreg_buf[3]); | |
1015 | /* Skip ALU */ | |
1016 | supply_register (BP_REGNUM, (char *) &sreg_buf[5]); | |
1017 | supply_register (FC_REGNUM, (char *) &sreg_buf[6]); | |
1018 | supply_register (CR_REGNUM, (char *) &sreg_buf[7]); | |
c906108c SS |
1019 | |
1020 | /* There doesn't seem to be any way to get these. */ | |
1021 | { | |
1022 | int val = -1; | |
1023 | supply_register (FPE_REGNUM, (char *) &val); | |
1024 | supply_register (INTE_REGNUM, (char *) &val); | |
1025 | supply_register (FPS_REGNUM, (char *) &val); | |
1026 | supply_register (EXO_REGNUM, (char *) &val); | |
1027 | } | |
1028 | ||
1029 | write (adapt_desc, "dw gr1,gr1\r", 11); | |
1030 | expect ("GR001 "); | |
1031 | get_hex_regs (1, GR1_REGNUM); | |
1032 | expect_prompt (); | |
1033 | } | |
1034 | ||
1035 | /* Fetch register REGNO, or all registers if REGNO is -1. | |
1036 | */ | |
1037 | static void | |
fba45db2 | 1038 | adapt_fetch_register (int regno) |
c906108c SS |
1039 | { |
1040 | if (regno == -1) | |
1041 | adapt_fetch_registers (); | |
1042 | else | |
1043 | { | |
1044 | char *name = get_reg_name (regno); | |
1045 | fprintf (adapt_stream, "dw %s,%s\r", name, name); | |
1046 | expect (name); | |
1047 | expect (" "); | |
1048 | get_hex_regs (1, regno); | |
1049 | expect_prompt (); | |
1050 | } | |
1051 | } | |
1052 | ||
1053 | /* Store the remote registers from the contents of the block REGS. */ | |
1054 | ||
1055 | static void | |
fba45db2 | 1056 | adapt_store_registers (void) |
c906108c SS |
1057 | { |
1058 | int i, j; | |
1059 | ||
1060 | fprintf (adapt_stream, "s gr1,%x\r", read_register (GR1_REGNUM)); | |
1061 | expect_prompt (); | |
1062 | ||
1063 | #if defined(GR64_REGNUM) | |
1064 | for (j = 0; j < 32; j += 16) | |
1065 | { | |
1066 | fprintf (adapt_stream, "s gr%d,", j + 64); | |
c5aa993b | 1067 | for (i = 0; i < 15; ++i) |
c906108c SS |
1068 | fprintf (adapt_stream, "%x,", read_register (GR64_REGNUM + j + i)); |
1069 | fprintf (adapt_stream, "%x\r", read_register (GR64_REGNUM + j + 15)); | |
1070 | expect_prompt (); | |
1071 | } | |
1072 | #endif | |
1073 | for (j = 0; j < 32; j += 16) | |
1074 | { | |
1075 | fprintf (adapt_stream, "s gr%d,", j + 96); | |
c5aa993b | 1076 | for (i = 0; i < 15; ++i) |
c906108c SS |
1077 | fprintf (adapt_stream, "%x,", read_register (GR96_REGNUM + j + i)); |
1078 | fprintf (adapt_stream, "%x\r", read_register (GR96_REGNUM + j + 15)); | |
1079 | expect_prompt (); | |
1080 | } | |
1081 | ||
1082 | for (j = 0; j < 128; j += 16) | |
1083 | { | |
1084 | fprintf (adapt_stream, "s lr%d,", j); | |
c5aa993b | 1085 | for (i = 0; i < 15; ++i) |
c906108c SS |
1086 | fprintf (adapt_stream, "%x,", read_register (LR0_REGNUM + j + i)); |
1087 | fprintf (adapt_stream, "%x\r", read_register (LR0_REGNUM + j + 15)); | |
1088 | expect_prompt (); | |
1089 | } | |
1090 | ||
1091 | fprintf (adapt_stream, "s sr128,%x,%x,%x\r", read_register (IPC_REGNUM), | |
1092 | read_register (IPA_REGNUM), read_register (IPB_REGNUM)); | |
1093 | expect_prompt (); | |
1094 | fprintf (adapt_stream, "s sr133,%x,%x,%x\r", read_register (BP_REGNUM), | |
1095 | read_register (FC_REGNUM), read_register (CR_REGNUM)); | |
1096 | expect_prompt (); | |
1097 | fprintf (adapt_stream, "s sr131,%x\r", read_register (Q_REGNUM)); | |
1098 | expect_prompt (); | |
1099 | fprintf (adapt_stream, "s sr0,"); | |
c5aa993b | 1100 | for (i = 0; i < 7; ++i) |
c906108c SS |
1101 | fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i)); |
1102 | expect_prompt (); | |
1103 | fprintf (adapt_stream, "s sr7,"); | |
c5aa993b | 1104 | for (i = 7; i < 14; ++i) |
c906108c SS |
1105 | fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i)); |
1106 | expect_prompt (); | |
1107 | } | |
1108 | ||
1109 | /* Store register REGNO, or all if REGNO == -1. | |
1110 | Return errno value. */ | |
1111 | void | |
fba45db2 | 1112 | adapt_store_register (int regno) |
c906108c SS |
1113 | { |
1114 | /* printf("adapt_store_register() called.\n"); fflush(stdout); /* */ | |
1115 | if (regno == -1) | |
1116 | adapt_store_registers (); | |
1117 | else | |
1118 | { | |
1119 | char *name = get_reg_name (regno); | |
1120 | fprintf (adapt_stream, "s %s,%x\r", name, read_register (regno)); | |
1121 | /* Setting GR1 changes the numbers of all the locals, so | |
c5aa993b JM |
1122 | invalidate the register cache. Do this *after* calling |
1123 | read_register, because we want read_register to return the | |
1124 | value that write_register has just stuffed into the registers | |
1125 | array, not the value of the register fetched from the | |
1126 | inferior. */ | |
c906108c SS |
1127 | if (regno == GR1_REGNUM) |
1128 | registers_changed (); | |
1129 | expect_prompt (); | |
1130 | } | |
1131 | } | |
1132 | ||
1133 | /* Get ready to modify the registers array. On machines which store | |
1134 | individual registers, this doesn't need to do anything. On machines | |
1135 | which store all the registers in one fell swoop, this makes sure | |
1136 | that registers contains all the registers from the program being | |
1137 | debugged. */ | |
1138 | ||
1139 | void | |
fba45db2 | 1140 | adapt_prepare_to_store (void) |
c906108c SS |
1141 | { |
1142 | /* Do nothing, since we can store individual regs */ | |
1143 | } | |
1144 | ||
c5aa993b | 1145 | static CORE_ADDR |
fba45db2 | 1146 | translate_addr (CORE_ADDR addr) |
c906108c SS |
1147 | { |
1148 | #if defined(KERNEL_DEBUGGING) | |
c5aa993b JM |
1149 | /* Check for a virtual address in the kernel */ |
1150 | /* Assume physical address of ublock is in paddr_u register */ | |
1151 | if (addr >= UVADDR) | |
1152 | { | |
1153 | /* PADDR_U register holds the physical address of the ublock */ | |
1154 | CORE_ADDR i = (CORE_ADDR) read_register (PADDR_U_REGNUM); | |
1155 | return (i + addr - (CORE_ADDR) UVADDR); | |
1156 | } | |
1157 | else | |
1158 | { | |
1159 | return (addr); | |
1160 | } | |
c906108c | 1161 | #else |
c5aa993b | 1162 | return (addr); |
c906108c SS |
1163 | #endif |
1164 | } | |
1165 | ||
1166 | ||
1167 | /* FIXME! Merge these two. */ | |
1168 | int | |
29e57380 C |
1169 | adapt_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
1170 | struct mem_attrib *attrib ATTRIBUTE_UNUSED, | |
1171 | struct target_ops *target ATTRIBUTE_UNUSED) | |
c906108c SS |
1172 | { |
1173 | ||
c5aa993b | 1174 | memaddr = translate_addr (memaddr); |
c906108c SS |
1175 | |
1176 | if (write) | |
1177 | return adapt_write_inferior_memory (memaddr, myaddr, len); | |
1178 | else | |
1179 | return adapt_read_inferior_memory (memaddr, myaddr, len); | |
1180 | } | |
1181 | ||
1182 | void | |
fba45db2 | 1183 | adapt_files_info (void) |
c906108c | 1184 | { |
c5aa993b JM |
1185 | printf_filtered ("\tAttached to %s at %d baud and running program %s\n", |
1186 | dev_name, baudrate, prog_name); | |
1187 | printf_filtered ("\ton an %s processor.\n", processor_name[processor_type]); | |
c906108c SS |
1188 | } |
1189 | ||
1190 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
1191 | to inferior's memory at MEMADDR. Returns errno value. | |
c5aa993b | 1192 | * sb/sh instructions don't work on unaligned addresses, when TU=1. |
c906108c SS |
1193 | */ |
1194 | int | |
fba45db2 | 1195 | adapt_write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c SS |
1196 | { |
1197 | int i; | |
1198 | unsigned int cps; | |
1199 | ||
1200 | /* Turn TU bit off so we can do 'sb' commands */ | |
c5aa993b | 1201 | cps = read_register (CPS_REGNUM); |
c906108c | 1202 | if (cps & 0x00000800) |
c5aa993b | 1203 | write_register (CPS_REGNUM, cps & ~(0x00000800)); |
c906108c SS |
1204 | |
1205 | for (i = 0; i < len; i++) | |
1206 | { | |
1207 | if ((i % 16) == 0) | |
1208 | fprintf (adapt_stream, "sb %x,", memaddr + i); | |
1209 | if ((i % 16) == 15 || i == len - 1) | |
1210 | { | |
c5aa993b | 1211 | fprintf (adapt_stream, "%x\r", ((unsigned char *) myaddr)[i]); |
c906108c SS |
1212 | expect_prompt (); |
1213 | } | |
1214 | else | |
c5aa993b | 1215 | fprintf (adapt_stream, "%x,", ((unsigned char *) myaddr)[i]); |
c906108c SS |
1216 | } |
1217 | /* Restore the old value of cps if the TU bit was on */ | |
1218 | if (cps & 0x00000800) | |
c5aa993b | 1219 | write_register (CPS_REGNUM, cps); |
c906108c SS |
1220 | return len; |
1221 | } | |
1222 | ||
1223 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result | |
1224 | at debugger address MYADDR. Returns errno value. */ | |
1225 | int | |
fba45db2 | 1226 | adapt_read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c SS |
1227 | { |
1228 | int i; | |
1229 | ||
1230 | /* Number of bytes read so far. */ | |
1231 | int count; | |
1232 | ||
1233 | /* Starting address of this pass. */ | |
1234 | unsigned long startaddr; | |
1235 | ||
1236 | /* Number of bytes to read in this pass. */ | |
1237 | int len_this_pass; | |
1238 | ||
1239 | /* Note that this code works correctly if startaddr is just less | |
1240 | than UINT_MAX (well, really CORE_ADDR_MAX if there was such a | |
1241 | thing). That is, something like | |
1242 | adapt_read_bytes (CORE_ADDR_MAX - 4, foo, 4) | |
1243 | works--it never adds len to memaddr and gets 0. */ | |
1244 | /* However, something like | |
1245 | adapt_read_bytes (CORE_ADDR_MAX - 3, foo, 4) | |
1246 | doesn't need to work. Detect it and give up if there's an attempt | |
1247 | to do that. */ | |
1248 | ||
1249 | if (((memaddr - 1) + len) < memaddr) | |
1250 | return EIO; | |
c5aa993b | 1251 | |
c906108c SS |
1252 | startaddr = memaddr; |
1253 | count = 0; | |
1254 | while (count < len) | |
1255 | { | |
1256 | len_this_pass = 16; | |
1257 | if ((startaddr % 16) != 0) | |
1258 | len_this_pass -= startaddr % 16; | |
1259 | if (len_this_pass > (len - count)) | |
1260 | len_this_pass = (len - count); | |
1261 | ||
1262 | fprintf (adapt_stream, "db %x,%x\r", startaddr, | |
1263 | (startaddr - 1) + len_this_pass); | |
1264 | ||
c5aa993b | 1265 | #ifdef NOTDEF /* Why do this */ |
c906108c SS |
1266 | expect ("\n"); |
1267 | /* Look for 8 hex digits. */ | |
1268 | i = 0; | |
1269 | while (1) | |
1270 | { | |
1271 | if (isxdigit (readchar ())) | |
1272 | ++i; | |
1273 | else | |
1274 | { | |
1275 | expect_prompt (); | |
1276 | error ("Hex digit expected from remote system."); | |
1277 | } | |
1278 | if (i >= 8) | |
1279 | break; | |
1280 | } | |
1281 | #endif /* NOTDEF */ | |
1282 | ||
1283 | expect (" "); | |
1284 | ||
1285 | for (i = 0; i < len_this_pass; i++) | |
1286 | get_hex_byte (&myaddr[count++]); | |
1287 | ||
1288 | expect_prompt (); | |
1289 | ||
1290 | startaddr += len_this_pass; | |
1291 | } | |
1292 | return count; | |
1293 | } | |
1294 | ||
1295 | #define MAX_BREAKS 8 | |
c5aa993b | 1296 | static int num_brkpts = 0; |
e082ddca KB |
1297 | |
1298 | /* Insert a breakpoint at ADDR. SAVE is normally the address of the | |
1299 | pattern buffer where the instruction that the breakpoint overwrites | |
1300 | is saved. It is unused here since the Adapt Monitor is responsible | |
1301 | for saving/restoring the original instruction. */ | |
1302 | ||
c906108c | 1303 | static int |
e082ddca | 1304 | adapt_insert_breakpoint (CORE_ADDR addr, char *save) |
c906108c | 1305 | { |
c5aa993b JM |
1306 | if (num_brkpts < MAX_BREAKS) |
1307 | { | |
1308 | num_brkpts++; | |
1309 | fprintf (adapt_stream, "B %x", addr); | |
1310 | fprintf (adapt_stream, "\r"); | |
1311 | expect_prompt (); | |
1312 | return (0); /* Success */ | |
1313 | } | |
1314 | else | |
1315 | { | |
1316 | fprintf_filtered (gdb_stderr, | |
1317 | "Too many break points, break point not installed\n"); | |
1318 | return (1); /* Failure */ | |
1319 | } | |
c906108c SS |
1320 | |
1321 | } | |
e082ddca KB |
1322 | |
1323 | /* Remove a breakpoint at ADDR. SAVE is normally the previously | |
1324 | saved pattern, but is unused here as the Adapt Monitor is | |
1325 | responsible for saving/restoring instructions. */ | |
1326 | ||
c906108c | 1327 | static int |
e082ddca | 1328 | adapt_remove_breakpoint (CORE_ADDR addr, char *save) |
c906108c | 1329 | { |
c5aa993b JM |
1330 | if (num_brkpts > 0) |
1331 | { | |
1332 | num_brkpts--; | |
1333 | fprintf (adapt_stream, "BR %x", addr); | |
1334 | fprintf (adapt_stream, "\r"); | |
1335 | fflush (adapt_stream); | |
1336 | expect_prompt (); | |
1337 | } | |
1338 | return (0); | |
c906108c SS |
1339 | } |
1340 | ||
1341 | /* Clear the adapts notion of what the break points are */ | |
1342 | static int | |
fba45db2 | 1343 | adapt_clear_breakpoints (void) |
c5aa993b JM |
1344 | { |
1345 | if (adapt_stream) | |
1346 | { | |
1347 | fprintf (adapt_stream, "BR"); /* Clear all break points */ | |
1348 | fprintf (adapt_stream, "\r"); | |
1349 | fflush (adapt_stream); | |
1350 | expect_prompt (); | |
1351 | } | |
c906108c SS |
1352 | num_brkpts = 0; |
1353 | } | |
1354 | static void | |
fba45db2 | 1355 | adapt_mourn (void) |
c5aa993b JM |
1356 | { |
1357 | adapt_clear_breakpoints (); | |
1358 | pop_target (); /* Pop back to no-child state */ | |
c906108c SS |
1359 | generic_mourn_inferior (); |
1360 | } | |
1361 | ||
1362 | /* Display everthing we read in from the adapt until we match/see the | |
1363 | * specified string | |
1364 | */ | |
1365 | static int | |
fba45db2 | 1366 | display_until (char *str) |
c906108c | 1367 | { |
c5aa993b JM |
1368 | int i = 0, j, c; |
1369 | ||
1370 | while (c = readchar ()) | |
1371 | { | |
1372 | if (c == str[i]) | |
1373 | { | |
1374 | i++; | |
1375 | if (i == strlen (str)) | |
1376 | return; | |
1377 | } | |
1378 | else | |
1379 | { | |
1380 | if (i) | |
1381 | { | |
1382 | for (j = 0; j < i; j++) /* Put everthing we matched */ | |
1383 | putchar (str[j]); | |
1384 | i = 0; | |
1385 | } | |
1386 | putchar (c); | |
c906108c | 1387 | } |
c5aa993b | 1388 | } |
c906108c SS |
1389 | |
1390 | } | |
1391 | ||
1392 | ||
1393 | /* Put a command string, in args, out to the adapt. The adapt is assumed to | |
1394 | be in raw mode, all writing/reading done through adapt_desc. | |
1395 | Ouput from the adapt is placed on the users terminal until the | |
1396 | prompt from the adapt is seen. | |
1397 | FIXME: Can't handle commands that take input. */ | |
1398 | ||
1399 | void | |
fba45db2 | 1400 | adapt_com (char *args, int fromtty) |
c906108c | 1401 | { |
c5aa993b JM |
1402 | if (!adapt_stream) |
1403 | { | |
1404 | printf_filtered ("Adapt not open. Use the 'target' command to open.\n"); | |
1405 | return; | |
1406 | } | |
1407 | ||
1408 | /* Clear all input so only command relative output is displayed */ | |
1409 | slurp_input (); | |
c906108c | 1410 | |
c5aa993b JM |
1411 | switch (islower (args[0]) ? toupper (args[0]) : args[0]) |
1412 | { | |
1413 | default: | |
1414 | printf_filtered ("Unknown/Unimplemented adapt command '%s'\n", args); | |
1415 | break; | |
1416 | case 'G': /* Go, begin execution */ | |
1417 | write (adapt_desc, args, strlen (args)); | |
1418 | write (adapt_desc, "\r", 1); | |
1419 | expect_prompt (); | |
1420 | break; | |
1421 | case 'B': /* Break points, B or BR */ | |
1422 | case 'C': /* Check current 29k status (running/halted) */ | |
1423 | case 'D': /* Display data/registers */ | |
1424 | case 'I': /* Input from i/o space */ | |
1425 | case 'J': /* Jam an instruction */ | |
1426 | case 'K': /* Kill, stop execution */ | |
1427 | case 'L': /* Disassemble */ | |
1428 | case 'O': /* Output to i/o space */ | |
1429 | case 'T': /* Trace */ | |
1430 | case 'P': /* Pulse an input line */ | |
1431 | case 'X': /* Examine special purpose registers */ | |
1432 | case 'Z': /* Display trace buffer */ | |
1433 | write (adapt_desc, args, strlen (args)); | |
1434 | write (adapt_desc, "\r", 1); | |
1435 | expect (args); /* Don't display the command */ | |
1436 | display_until ("# "); | |
1437 | break; | |
1438 | /* Begin commands that take input in the form 'c x,y[,z...]' */ | |
1439 | case 'S': /* Set memory or register */ | |
1440 | if (strchr (args, ',')) | |
1441 | { /* Assume it is properly formatted */ | |
1442 | write (adapt_desc, args, strlen (args)); | |
1443 | write (adapt_desc, "\r", 1); | |
1444 | expect_prompt (); | |
c906108c | 1445 | } |
c5aa993b JM |
1446 | break; |
1447 | } | |
c906108c SS |
1448 | } |
1449 | ||
1450 | /* Define the target subroutine names */ | |
1451 | ||
c5aa993b | 1452 | struct target_ops adapt_ops; |
c906108c | 1453 | |
c5aa993b JM |
1454 | static void |
1455 | init_adapt_ops (void) | |
c906108c | 1456 | { |
c5aa993b JM |
1457 | adapt_ops.to_shortname = "adapt"; |
1458 | adapt_ops.to_longname = "Remote AMD `Adapt' target"; | |
1459 | adapt_ops.to_doc = "Remote debug an AMD 290*0 using an `Adapt' monitor via RS232"; | |
1460 | adapt_ops.to_open = adapt_open; | |
1461 | adapt_ops.to_close = adapt_close; | |
c906108c SS |
1462 | adapt_ops.to_attach = adapt_attach; |
1463 | adapt_ops.to_post_attach = NULL; | |
c5aa993b | 1464 | adapt_ops.to_require_attach = NULL; |
c906108c SS |
1465 | adapt_ops.to_detach = adapt_detach; |
1466 | adapt_ops.to_require_detach = NULL; | |
1467 | adapt_ops.to_resume = adapt_resume; | |
c5aa993b | 1468 | adapt_ops.to_wait = adapt_wait; |
c906108c | 1469 | adapt_ops.to_post_wait = NULL; |
c5aa993b JM |
1470 | adapt_ops.to_fetch_registers = adapt_fetch_register; |
1471 | adapt_ops.to_store_registers = adapt_store_register; | |
c906108c | 1472 | adapt_ops.to_prepare_to_store = adapt_prepare_to_store; |
c5aa993b JM |
1473 | adapt_ops.to_xfer_memory = adapt_xfer_inferior_memory; |
1474 | adapt_ops.to_files_info = adapt_files_info; | |
c906108c | 1475 | adapt_ops.to_insert_breakpoint = adapt_insert_breakpoint; |
c5aa993b JM |
1476 | adapt_ops.to_remove_breakpoint = adapt_remove_breakpoint; |
1477 | adapt_ops.to_terminal_init = 0; | |
1478 | adapt_ops.to_terminal_inferior = 0; | |
1479 | adapt_ops.to_terminal_ours_for_output = 0; | |
1480 | adapt_ops.to_terminal_ours = 0; | |
1481 | adapt_ops.to_terminal_info = 0; | |
1482 | adapt_ops.to_kill = adapt_kill; | |
1483 | adapt_ops.to_load = adapt_load; | |
1484 | adapt_ops.to_lookup_symbol = 0; | |
1485 | adapt_ops.to_create_inferior = adapt_create_inferior; | |
c906108c SS |
1486 | adapt_ops.to_post_startup_inferior = NULL; |
1487 | adapt_ops.to_acknowledge_created_inferior = NULL; | |
c5aa993b JM |
1488 | adapt_ops.to_clone_and_follow_inferior = NULL; |
1489 | adapt_ops.to_post_follow_inferior_by_clone = NULL; | |
c906108c SS |
1490 | adapt_ops.to_insert_fork_catchpoint = NULL; |
1491 | adapt_ops.to_remove_fork_catchpoint = NULL; | |
1492 | adapt_ops.to_insert_vfork_catchpoint = NULL; | |
c5aa993b | 1493 | adapt_ops.to_remove_vfork_catchpoint = NULL; |
c906108c SS |
1494 | adapt_ops.to_has_forked = NULL; |
1495 | adapt_ops.to_has_vforked = NULL; | |
c5aa993b JM |
1496 | adapt_ops.to_can_follow_vfork_prior_to_exec = NULL; |
1497 | adapt_ops.to_post_follow_vfork = NULL; | |
c906108c SS |
1498 | adapt_ops.to_insert_exec_catchpoint = NULL; |
1499 | adapt_ops.to_remove_exec_catchpoint = NULL; | |
1500 | adapt_ops.to_has_execd = NULL; | |
1501 | adapt_ops.to_reported_exec_events_per_exec_call = NULL; | |
1502 | adapt_ops.to_has_exited = NULL; | |
c5aa993b JM |
1503 | adapt_ops.to_mourn_inferior = adapt_mourn; |
1504 | adapt_ops.to_can_run = 0; | |
1505 | adapt_ops.to_notice_signals = 0; | |
1506 | adapt_ops.to_thread_alive = 0; | |
1507 | adapt_ops.to_stop = 0; /* process_stratum; */ | |
c906108c SS |
1508 | adapt_ops.to_pid_to_exec_file = NULL; |
1509 | adapt_ops.to_core_file_to_sym_file = NULL; | |
c5aa993b JM |
1510 | adapt_ops.to_stratum = 0; |
1511 | adapt_ops.DONT_USE = 0; | |
1512 | adapt_ops.to_has_all_memory = 1; | |
1513 | adapt_ops.to_has_memory = 1; | |
1514 | adapt_ops.to_has_stack = 1; | |
1515 | adapt_ops.to_has_registers = 1; | |
1516 | adapt_ops.to_has_execution = 0; | |
1517 | adapt_ops.to_sections = 0; | |
1518 | adapt_ops.to_sections_end = 0; | |
1519 | adapt_ops.to_magic = OPS_MAGIC; | |
1520 | } /* init_adapt_ops */ | |
c906108c SS |
1521 | |
1522 | void | |
fba45db2 | 1523 | _initialize_remote_adapt (void) |
c906108c | 1524 | { |
c5aa993b | 1525 | init_adapt_ops (); |
c906108c SS |
1526 | add_target (&adapt_ops); |
1527 | add_com ("adapt <command>", class_obscure, adapt_com, | |
c5aa993b | 1528 | "Send a command to the AMD Adapt remote monitor."); |
c906108c | 1529 | } |