Commit | Line | Data |
---|---|---|
c906108c SS |
1 | /* Remote debugging interface for AMD 290*0 Adapt Monitor Version 2.1d18. |
2 | Copyright 1990, 1991, 1992 Free Software Foundation, Inc. | |
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" | |
03f2053f | 38 | #include "gdb_wait.h" |
c906108c SS |
39 | #include "value.h" |
40 | #include <ctype.h> | |
41 | #include <fcntl.h> | |
42 | #include <signal.h> | |
43 | #include <errno.h> | |
44 | #include "terminal.h" | |
45 | #include "target.h" | |
46 | #include "gdbcore.h" | |
47 | ||
48 | /* This processor is getting rusty but I am trying to keep it | |
49 | up to date at least with data structure changes. | |
50 | Activate this block to compile just this file. | |
c5aa993b | 51 | */ |
c906108c SS |
52 | #define COMPILE_CHECK 0 |
53 | #if COMPILE_CHECK | |
54 | #define Q_REGNUM 0 | |
55 | #define VAB_REGNUM 0 | |
56 | #define CPS_REGNUM 0 | |
57 | #define IPA_REGNUM 0 | |
58 | #define IPB_REGNUM 0 | |
59 | #define GR1_REGNUM 0 | |
60 | #define LR0_REGNUM 0 | |
61 | #define IPC_REGNUM 0 | |
62 | #define CR_REGNUM 0 | |
63 | #define BP_REGNUM 0 | |
64 | #define FC_REGNUM 0 | |
65 | #define INTE_REGNUM 0 | |
66 | #define EXO_REGNUM 0 | |
67 | #define GR96_REGNUM 0 | |
68 | #define NPC_REGNUM | |
69 | #define FPE_REGNUM 0 | |
70 | #define PC2_REGNUM 0 | |
71 | #define FPS_REGNUM 0 | |
72 | #define ALU_REGNUM 0 | |
73 | #define LRU_REGNUM 0 | |
74 | #define TERMINAL int | |
75 | #define RAW 1 | |
76 | #define ANYP 1 | |
c5aa993b JM |
77 | extern int a29k_freeze_mode; |
78 | extern int processor_type; | |
79 | extern char *processor_name; | |
c906108c SS |
80 | #endif |
81 | ||
82 | /* External data declarations */ | |
c5aa993b | 83 | extern int stop_soon_quietly; /* for wait_for_inferior */ |
c906108c SS |
84 | |
85 | /* Forward data declarations */ | |
c5aa993b | 86 | extern struct target_ops adapt_ops; /* Forward declaration */ |
c906108c SS |
87 | |
88 | /* Forward function declarations */ | |
89 | static void adapt_fetch_registers (); | |
90 | static void adapt_store_registers (); | |
91 | static void adapt_close (); | |
c5aa993b | 92 | static int adapt_clear_breakpoints (); |
c906108c | 93 | |
c5aa993b | 94 | #define FREEZE_MODE (read_register(CPS_REGNUM) && 0x400) |
c906108c SS |
95 | #define USE_SHADOW_PC ((processor_type == a29k_freeze_mode) && FREEZE_MODE) |
96 | ||
97 | /* Can't seem to get binary coff working */ | |
98 | #define ASCII_COFF /* Adapt will be downloaded with ascii coff */ | |
99 | ||
100 | /* FIXME: Replace with `set remotedebug'. */ | |
101 | #define LOG_FILE "adapt.log" | |
102 | #if defined (LOG_FILE) | |
c5aa993b | 103 | FILE *log_file = NULL; |
c906108c SS |
104 | #endif |
105 | ||
106 | static int timeout = 5; | |
107 | static char *dev_name; | |
108 | ||
109 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that | |
110 | adapt_open knows that we don't have a file open when the program | |
111 | starts. */ | |
112 | int adapt_desc = -1; | |
113 | ||
114 | /* stream which is fdopen'd from adapt_desc. Only valid when | |
115 | adapt_desc != -1. */ | |
116 | FILE *adapt_stream; | |
117 | ||
118 | #define ON 1 | |
119 | #define OFF 0 | |
120 | static void | |
fba45db2 | 121 | rawmode (int desc, int turnon) |
c906108c | 122 | { |
c5aa993b | 123 | |
c906108c SS |
124 | TERMINAL sg; |
125 | ||
126 | if (desc < 0) | |
127 | return; | |
128 | ||
129 | ioctl (desc, TIOCGETP, &sg); | |
130 | ||
c5aa993b JM |
131 | if (turnon) |
132 | { | |
c906108c | 133 | #ifdef HAVE_TERMIO |
c5aa993b | 134 | sg.c_lflag &= ~(ICANON); |
c906108c | 135 | #else |
c5aa993b | 136 | sg.sg_flags |= RAW; |
c906108c | 137 | #endif |
c5aa993b JM |
138 | } |
139 | else | |
140 | { | |
c906108c | 141 | #ifdef HAVE_TERMIO |
c5aa993b | 142 | sg.c_lflag |= ICANON; |
c906108c | 143 | #else |
c5aa993b | 144 | sg.sg_flags &= ~(RAW); |
c906108c | 145 | #endif |
c5aa993b | 146 | } |
c906108c SS |
147 | ioctl (desc, TIOCSETP, &sg); |
148 | } | |
149 | ||
150 | /* Suck up all the input from the adapt */ | |
fba45db2 | 151 | slurp_input (void) |
c906108c SS |
152 | { |
153 | char buf[8]; | |
154 | ||
155 | #ifdef HAVE_TERMIO | |
156 | /* termio does the timeout for us. */ | |
157 | while (read (adapt_desc, buf, 8) > 0); | |
158 | #else | |
159 | alarm (timeout); | |
160 | while (read (adapt_desc, buf, 8) > 0); | |
161 | alarm (0); | |
162 | #endif | |
163 | } | |
164 | ||
165 | /* Read a character from the remote system, doing all the fancy | |
166 | timeout stuff. */ | |
167 | static int | |
fba45db2 | 168 | readchar (void) |
c906108c SS |
169 | { |
170 | char buf; | |
171 | ||
172 | buf = '\0'; | |
173 | #ifdef HAVE_TERMIO | |
174 | /* termio does the timeout for us. */ | |
175 | read (adapt_desc, &buf, 1); | |
176 | #else | |
177 | alarm (timeout); | |
178 | if (read (adapt_desc, &buf, 1) < 0) | |
179 | { | |
180 | if (errno == EINTR) | |
181 | error ("Timeout reading from remote system."); | |
182 | else | |
183 | perror_with_name ("remote"); | |
184 | } | |
185 | alarm (0); | |
186 | #endif | |
187 | ||
188 | if (buf == '\0') | |
189 | error ("Timeout reading from remote system."); | |
190 | #if defined (LOG_FILE) | |
191 | putc (buf & 0x7f, log_file); | |
192 | #endif | |
193 | return buf & 0x7f; | |
194 | } | |
195 | ||
196 | /* Keep discarding input from the remote system, until STRING is found. | |
197 | Let the user break out immediately. */ | |
198 | static void | |
fba45db2 | 199 | expect (char *string) |
c906108c SS |
200 | { |
201 | char *p = string; | |
202 | ||
c5aa993b | 203 | fflush (adapt_stream); |
8edbea78 | 204 | immediate_quit++; |
c906108c SS |
205 | while (1) |
206 | { | |
c5aa993b | 207 | if (readchar () == *p) |
c906108c SS |
208 | { |
209 | p++; | |
210 | if (*p == '\0') | |
211 | { | |
8edbea78 | 212 | immediate_quit--; |
c906108c SS |
213 | return; |
214 | } | |
215 | } | |
216 | else | |
217 | p = string; | |
218 | } | |
219 | } | |
220 | ||
221 | /* Keep discarding input until we see the adapt prompt. | |
222 | ||
223 | The convention for dealing with the prompt is that you | |
224 | o give your command | |
225 | o *then* wait for the prompt. | |
226 | ||
227 | Thus the last thing that a procedure does with the serial line | |
228 | will be an expect_prompt(). Exception: adapt_resume does not | |
229 | wait for the prompt, because the terminal is being handed over | |
230 | to the inferior. However, the next thing which happens after that | |
231 | is a adapt_wait which does wait for the prompt. | |
232 | Note that this includes abnormal exit, e.g. error(). This is | |
233 | necessary to prevent getting into states from which we can't | |
234 | recover. */ | |
235 | static void | |
fba45db2 | 236 | expect_prompt (void) |
c906108c SS |
237 | { |
238 | #if defined (LOG_FILE) | |
239 | /* This is a convenient place to do this. The idea is to do it often | |
240 | enough that we never lose much data if we terminate abnormally. */ | |
241 | fflush (log_file); | |
242 | #endif | |
c5aa993b | 243 | fflush (adapt_stream); |
c906108c SS |
244 | expect ("\n# "); |
245 | } | |
246 | ||
247 | /* Get a hex digit from the remote system & return its value. | |
248 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ | |
249 | static int | |
fba45db2 | 250 | get_hex_digit (int ignore_space) |
c906108c SS |
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 | |
fba45db2 | 275 | get_hex_byte (char *byt) |
c906108c SS |
276 | { |
277 | int val; | |
278 | ||
279 | val = get_hex_digit (1) << 4; | |
280 | val |= get_hex_digit (0); | |
281 | *byt = val; | |
282 | } | |
283 | ||
284 | /* Read a 32-bit hex word from the adapt, preceded by a space */ | |
c5aa993b | 285 | static long |
fba45db2 | 286 | get_hex_word (void) |
c906108c SS |
287 | { |
288 | long val; | |
289 | int j; | |
c5aa993b | 290 | |
c906108c SS |
291 | val = 0; |
292 | for (j = 0; j < 8; j++) | |
c5aa993b | 293 | val = (val << 4) + get_hex_digit (j == 0); |
c906108c SS |
294 | return val; |
295 | } | |
296 | /* Get N 32-bit hex words from remote, each preceded by a space | |
297 | and put them in registers starting at REGNO. */ | |
298 | static void | |
fba45db2 | 299 | get_hex_regs (int n, int regno) |
c906108c | 300 | { |
c5aa993b JM |
301 | long val; |
302 | while (n--) | |
303 | { | |
304 | val = get_hex_word (); | |
305 | supply_register (regno++, (char *) &val); | |
306 | } | |
c906108c SS |
307 | } |
308 | /* Called when SIGALRM signal sent due to alarm() timeout. */ | |
309 | #ifndef HAVE_TERMIO | |
310 | ||
311 | #ifndef __STDC__ | |
c5aa993b JM |
312 | #ifndef volatile |
313 | #define volatile | |
314 | /**/ | |
c906108c SS |
315 | # endif |
316 | #endif | |
317 | volatile int n_alarms; | |
318 | ||
319 | void | |
fba45db2 | 320 | adapt_timer (void) |
c906108c SS |
321 | { |
322 | #if 0 | |
323 | if (kiodebug) | |
324 | printf ("adapt_timer called\n"); | |
325 | #endif | |
326 | n_alarms++; | |
327 | } | |
328 | #endif | |
329 | ||
330 | /* malloc'd name of the program on the remote system. */ | |
331 | static char *prog_name = NULL; | |
332 | ||
333 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
334 | NEED_ARTIFICIAL_TRAP calls to adapt_wait should just return | |
335 | SIGTRAP without actually waiting for anything. */ | |
336 | ||
337 | static int need_artificial_trap = 0; | |
338 | ||
339 | void | |
fba45db2 | 340 | adapt_kill (char *arg, int from_tty) |
c906108c | 341 | { |
c5aa993b JM |
342 | fprintf (adapt_stream, "K"); |
343 | fprintf (adapt_stream, "\r"); | |
344 | expect_prompt (); | |
c906108c SS |
345 | } |
346 | /* | |
347 | * Download a file specified in 'args', to the adapt. | |
348 | * FIXME: Assumes the file to download is a binary coff file. | |
349 | */ | |
350 | static void | |
fba45db2 | 351 | adapt_load (char *args, int fromtty) |
c906108c | 352 | { |
c5aa993b JM |
353 | FILE *fp; |
354 | int n; | |
355 | char buffer[1024]; | |
c906108c | 356 | |
c5aa993b JM |
357 | if (!adapt_stream) |
358 | { | |
359 | printf_filtered ("Adapt not open. Use 'target' command to open adapt\n"); | |
360 | return; | |
361 | } | |
362 | ||
363 | /* OK, now read in the file. Y=read, C=COFF, T=dTe port | |
364 | 0=start address. */ | |
365 | ||
366 | #ifdef ASCII_COFF /* Ascii coff */ | |
367 | fprintf (adapt_stream, "YA T,0\r"); | |
368 | fflush (adapt_stream); /* Just in case */ | |
369 | /* FIXME: should check args for only 1 argument */ | |
370 | sprintf (buffer, "cat %s | btoa > /tmp/#adapt-btoa", args); | |
371 | system (buffer); | |
372 | fp = fopen ("/tmp/#adapt-btoa", "r"); | |
373 | rawmode (adapt_desc, OFF); | |
374 | while (n = fread (buffer, 1, 1024, fp)) | |
375 | { | |
376 | do | |
377 | { | |
378 | n -= write (adapt_desc, buffer, n); | |
c906108c | 379 | } |
c5aa993b JM |
380 | while (n > 0); |
381 | if (n < 0) | |
382 | { | |
383 | perror ("writing ascii coff"); | |
384 | break; | |
c906108c | 385 | } |
c5aa993b JM |
386 | } |
387 | fclose (fp); | |
388 | rawmode (adapt_desc, ON); | |
389 | system ("rm /tmp/#adapt-btoa"); | |
390 | #else /* Binary coff - can't get it to work . */ | |
391 | fprintf (adapt_stream, "YC T,0\r"); | |
392 | fflush (adapt_stream); /* Just in case */ | |
393 | if (!(fp = fopen (args, "r"))) | |
394 | { | |
395 | printf_filtered ("Can't open %s\n", args); | |
396 | return; | |
397 | } | |
398 | while (n = fread (buffer, 1, 512, fp)) | |
399 | { | |
400 | do | |
401 | { | |
402 | n -= write (adapt_desc, buffer, n); | |
c906108c | 403 | } |
c5aa993b JM |
404 | while (n > 0); |
405 | if (n < 0) | |
406 | { | |
407 | perror ("writing ascii coff"); | |
408 | break; | |
409 | } | |
410 | } | |
411 | fclose (fp); | |
c906108c | 412 | #endif |
c5aa993b JM |
413 | expect_prompt (); /* Skip garbage that comes out */ |
414 | fprintf (adapt_stream, "\r"); | |
415 | expect_prompt (); | |
c906108c SS |
416 | } |
417 | ||
418 | /* This is called not only when we first attach, but also when the | |
419 | user types "run" after having attached. */ | |
420 | void | |
fba45db2 | 421 | adapt_create_inferior (char *execfile, char *args, char **env) |
c906108c SS |
422 | { |
423 | int entry_pt; | |
424 | ||
425 | if (args && *args) | |
426 | error ("Can't pass arguments to remote adapt process."); | |
427 | ||
428 | if (execfile == 0 || exec_bfd == 0) | |
429 | error ("No executable file specified"); | |
430 | ||
431 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
432 | ||
c5aa993b JM |
433 | if (adapt_stream) |
434 | { | |
435 | adapt_kill (NULL, NULL); | |
436 | adapt_clear_breakpoints (); | |
437 | init_wait_for_inferior (); | |
438 | /* Clear the input because what the adapt sends back is different | |
439 | * depending on whether it was running or not. | |
440 | */ | |
441 | slurp_input (); /* After this there should be a prompt */ | |
442 | fprintf (adapt_stream, "\r"); | |
443 | expect_prompt (); | |
444 | printf_filtered ("Do you want to download '%s' (y/n)? [y] : ", prog_name); | |
445 | { | |
446 | char buffer[10]; | |
447 | gets (buffer); | |
448 | if (*buffer != 'n') | |
449 | { | |
450 | adapt_load (prog_name, 0); | |
451 | } | |
452 | } | |
c906108c SS |
453 | |
454 | #ifdef NOTDEF | |
c5aa993b JM |
455 | /* Set the PC and wait for a go/cont */ |
456 | fprintf (adapt_stream, "G %x,N\r", entry_pt); | |
457 | printf_filtered ("Now use the 'continue' command to start.\n"); | |
458 | expect_prompt (); | |
c906108c | 459 | #else |
c5aa993b JM |
460 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
461 | proceed (entry_pt, TARGET_SIGNAL_DEFAULT, 0); | |
c906108c SS |
462 | #endif |
463 | ||
c5aa993b JM |
464 | } |
465 | else | |
466 | { | |
467 | printf_filtered ("Adapt not open yet.\n"); | |
468 | } | |
c906108c SS |
469 | } |
470 | ||
471 | /* Translate baud rates from integers to damn B_codes. Unix should | |
472 | have outgrown this crap years ago, but even POSIX wouldn't buck it. */ | |
473 | ||
474 | #ifndef B19200 | |
475 | #define B19200 EXTA | |
476 | #endif | |
477 | #ifndef B38400 | |
478 | #define B38400 EXTB | |
479 | #endif | |
480 | ||
c5aa993b JM |
481 | static struct |
482 | { | |
483 | int rate, damn_b; | |
484 | } | |
485 | baudtab[] = | |
486 | { | |
487 | { | |
488 | 0, B0 | |
489 | } | |
490 | , | |
491 | { | |
492 | 50, B50 | |
493 | } | |
494 | , | |
495 | { | |
496 | 75, B75 | |
497 | } | |
498 | , | |
499 | { | |
500 | 110, B110 | |
501 | } | |
502 | , | |
503 | { | |
504 | 134, B134 | |
505 | } | |
506 | , | |
507 | { | |
508 | 150, B150 | |
509 | } | |
510 | , | |
511 | { | |
512 | 200, B200 | |
513 | } | |
514 | , | |
515 | { | |
516 | 300, B300 | |
517 | } | |
518 | , | |
519 | { | |
520 | 600, B600 | |
521 | } | |
522 | , | |
523 | { | |
524 | 1200, B1200 | |
525 | } | |
526 | , | |
527 | { | |
528 | 1800, B1800 | |
529 | } | |
530 | , | |
531 | { | |
532 | 2400, B2400 | |
533 | } | |
534 | , | |
535 | { | |
536 | 4800, B4800 | |
537 | } | |
538 | , | |
539 | { | |
540 | 9600, B9600 | |
541 | } | |
542 | , | |
543 | { | |
544 | 19200, B19200 | |
545 | } | |
546 | , | |
547 | { | |
548 | 38400, B38400 | |
549 | } | |
550 | , | |
551 | { | |
552 | -1, -1 | |
553 | } | |
554 | , | |
c906108c SS |
555 | }; |
556 | ||
c5aa993b | 557 | static int |
fba45db2 | 558 | damn_b (int rate) |
c906108c SS |
559 | { |
560 | int i; | |
561 | ||
562 | for (i = 0; baudtab[i].rate != -1; i++) | |
c5aa993b JM |
563 | if (rate == baudtab[i].rate) |
564 | return baudtab[i].damn_b; | |
565 | return B38400; /* Random */ | |
c906108c SS |
566 | } |
567 | ||
568 | ||
569 | /* Open a connection to a remote debugger. | |
570 | NAME is the filename used for communication, then a space, | |
571 | then the baud rate. | |
572 | */ | |
573 | ||
574 | static int baudrate = 9600; | |
575 | static void | |
fba45db2 | 576 | adapt_open (char *name, int from_tty) |
c906108c SS |
577 | { |
578 | TERMINAL sg; | |
579 | unsigned int prl; | |
580 | char *p; | |
581 | ||
582 | /* Find the first whitespace character, it separates dev_name from | |
583 | prog_name. */ | |
584 | if (name == 0) | |
585 | goto erroid; | |
586 | ||
587 | for (p = name; | |
588 | *p != '\0' && !isspace (*p); p++) | |
589 | ; | |
590 | if (*p == '\0') | |
c5aa993b | 591 | erroid: |
c906108c SS |
592 | error ("\ |
593 | Please include the name of the device for the serial port,\n\ | |
594 | the baud rate, and the name of the program to run on the remote system."); | |
c5aa993b | 595 | dev_name = (char *) xmalloc (p - name + 1); |
c906108c SS |
596 | strncpy (dev_name, name, p - name); |
597 | dev_name[p - name] = '\0'; | |
598 | ||
599 | /* Skip over the whitespace after dev_name */ | |
600 | for (; isspace (*p); p++) | |
c5aa993b JM |
601 | /*EMPTY */ ; |
602 | ||
c906108c SS |
603 | if (1 != sscanf (p, "%d ", &baudrate)) |
604 | goto erroid; | |
605 | ||
606 | /* Skip the number and then the spaces */ | |
607 | for (; isdigit (*p); p++) | |
c5aa993b | 608 | /*EMPTY */ ; |
c906108c | 609 | for (; isspace (*p); p++) |
c5aa993b JM |
610 | /*EMPTY */ ; |
611 | ||
c906108c | 612 | if (prog_name != NULL) |
b8c9b27d | 613 | xfree (prog_name); |
c906108c SS |
614 | prog_name = savestring (p, strlen (p)); |
615 | ||
616 | adapt_close (0); | |
617 | ||
618 | adapt_desc = open (dev_name, O_RDWR); | |
619 | if (adapt_desc < 0) | |
620 | perror_with_name (dev_name); | |
621 | ioctl (adapt_desc, TIOCGETP, &sg); | |
c5aa993b | 622 | #if ! defined(COMPILE_CHECK) |
c906108c SS |
623 | #ifdef HAVE_TERMIO |
624 | sg.c_cc[VMIN] = 0; /* read with timeout. */ | |
625 | sg.c_cc[VTIME] = timeout * 10; | |
626 | sg.c_lflag &= ~(ICANON | ECHO); | |
627 | sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate); | |
628 | #else | |
629 | sg.sg_ispeed = damn_b (baudrate); | |
630 | sg.sg_ospeed = damn_b (baudrate); | |
631 | sg.sg_flags |= RAW | ANYP; | |
632 | sg.sg_flags &= ~ECHO; | |
633 | #endif | |
634 | ||
635 | ioctl (adapt_desc, TIOCSETP, &sg); | |
636 | adapt_stream = fdopen (adapt_desc, "r+"); | |
637 | #endif /* compile_check */ | |
638 | push_target (&adapt_ops); | |
639 | ||
640 | #ifndef HAVE_TERMIO | |
641 | #ifndef NO_SIGINTERRUPT | |
642 | /* Cause SIGALRM's to make reads fail with EINTR instead of resuming | |
643 | the read. */ | |
644 | if (siginterrupt (SIGALRM, 1) != 0) | |
645 | perror ("adapt_open: error in siginterrupt"); | |
646 | #endif | |
647 | ||
648 | /* Set up read timeout timer. */ | |
649 | if ((void (*)) signal (SIGALRM, adapt_timer) == (void (*)) -1) | |
650 | perror ("adapt_open: error in signal"); | |
651 | #endif | |
652 | ||
653 | #if defined (LOG_FILE) | |
654 | log_file = fopen (LOG_FILE, "w"); | |
655 | if (log_file == NULL) | |
656 | perror_with_name (LOG_FILE); | |
657 | #endif | |
658 | ||
659 | /* Put this port into NORMAL mode, send the 'normal' character */ | |
c5aa993b JM |
660 | write (adapt_desc, "\ 1", 1); /* Control A */ |
661 | write (adapt_desc, "\r", 1); | |
c906108c | 662 | expect_prompt (); |
c5aa993b | 663 | |
c906108c SS |
664 | /* Hello? Are you there? */ |
665 | write (adapt_desc, "\r", 1); | |
c5aa993b | 666 | |
c906108c SS |
667 | expect_prompt (); |
668 | ||
669 | /* Clear any break points */ | |
c5aa993b | 670 | adapt_clear_breakpoints (); |
c906108c SS |
671 | |
672 | /* Print out some stuff, letting the user now what's going on */ | |
c5aa993b JM |
673 | printf_filtered ("Connected to an Adapt via %s.\n", dev_name); |
674 | /* FIXME: can this restriction be removed? */ | |
675 | printf_filtered ("Remote debugging using virtual addresses works only\n"); | |
676 | printf_filtered ("\twhen virtual addresses map 1:1 to physical addresses.\n"); | |
677 | if (processor_type != a29k_freeze_mode) | |
678 | { | |
679 | fprintf_filtered (gdb_stderr, | |
680 | "Freeze-mode debugging not available, and can only be done on an A29050.\n"); | |
681 | } | |
c906108c SS |
682 | } |
683 | ||
684 | /* Close out all files and local state before this target loses control. */ | |
685 | ||
686 | static void | |
fba45db2 | 687 | adapt_close (int quitting) |
c906108c SS |
688 | { |
689 | ||
690 | /* Clear any break points */ | |
c5aa993b | 691 | adapt_clear_breakpoints (); |
c906108c | 692 | |
c5aa993b JM |
693 | /* Put this port back into REMOTE mode */ |
694 | if (adapt_stream) | |
695 | { | |
696 | fflush (adapt_stream); | |
697 | sleep (1); /* Let any output make it all the way back */ | |
698 | write (adapt_desc, "R\r", 2); | |
699 | } | |
c906108c SS |
700 | |
701 | /* Due to a bug in Unix, fclose closes not only the stdio stream, | |
702 | but also the file descriptor. So we don't actually close | |
703 | adapt_desc. */ | |
704 | if (adapt_stream) | |
705 | fclose (adapt_stream); /* This also closes adapt_desc */ | |
706 | if (adapt_desc >= 0) | |
707 | /* close (adapt_desc); */ | |
708 | ||
c5aa993b JM |
709 | /* Do not try to close adapt_desc again, later in the program. */ |
710 | adapt_stream = NULL; | |
c906108c SS |
711 | adapt_desc = -1; |
712 | ||
713 | #if defined (LOG_FILE) | |
c5aa993b JM |
714 | if (log_file) |
715 | { | |
716 | if (ferror (log_file)) | |
717 | printf_filtered ("Error writing log file.\n"); | |
718 | if (fclose (log_file) != 0) | |
719 | printf_filtered ("Error closing log file.\n"); | |
720 | log_file = NULL; | |
721 | } | |
c906108c SS |
722 | #endif |
723 | } | |
724 | ||
725 | /* Attach to the target that is already loaded and possibly running */ | |
726 | static void | |
fba45db2 | 727 | adapt_attach (char *args, int from_tty) |
c906108c SS |
728 | { |
729 | ||
730 | if (from_tty) | |
c5aa993b | 731 | printf_filtered ("Attaching to remote program %s.\n", prog_name); |
c906108c SS |
732 | |
733 | /* Send the adapt a kill. It is ok if it is not already running */ | |
c5aa993b JM |
734 | fprintf (adapt_stream, "K\r"); |
735 | fflush (adapt_stream); | |
736 | expect_prompt (); /* Slurp the echo */ | |
c906108c SS |
737 | } |
738 | ||
739 | ||
740 | /* Terminate the open connection to the remote debugger. | |
741 | Use this when you want to detach and do something else | |
742 | with your gdb. */ | |
743 | void | |
fba45db2 | 744 | adapt_detach (char *args, int from_tty) |
c906108c SS |
745 | { |
746 | ||
c5aa993b JM |
747 | if (adapt_stream) |
748 | { /* Send it on its way (tell it to continue) */ | |
749 | adapt_clear_breakpoints (); | |
750 | fprintf (adapt_stream, "G\r"); | |
751 | } | |
752 | ||
753 | pop_target (); /* calls adapt_close to do the real work */ | |
c906108c SS |
754 | if (from_tty) |
755 | printf_filtered ("Ending remote %s debugging\n", target_shortname); | |
756 | } | |
c5aa993b | 757 | |
c906108c SS |
758 | /* Tell the remote machine to resume. */ |
759 | ||
760 | void | |
fba45db2 | 761 | adapt_resume (int pid, int step, enum target_signal sig) |
c906108c | 762 | { |
c5aa993b | 763 | if (step) |
c906108c SS |
764 | { |
765 | write (adapt_desc, "t 1,s\r", 6); | |
766 | /* Wait for the echo. */ | |
767 | expect ("t 1,s\r\n"); | |
768 | /* Then comes a line containing the instruction we stepped to. */ | |
769 | expect ("@"); | |
770 | /* Then we get the prompt. */ | |
771 | expect_prompt (); | |
772 | ||
773 | /* Force the next adapt_wait to return a trap. Not doing anything | |
774 | about I/O from the target means that the user has to type | |
775 | "continue" to see any. FIXME, this should be fixed. */ | |
776 | need_artificial_trap = 1; | |
777 | } | |
778 | else | |
779 | { | |
780 | write (adapt_desc, "G\r", 2); | |
781 | /* Swallow the echo. */ | |
c5aa993b | 782 | expect_prompt (); |
c906108c SS |
783 | } |
784 | } | |
785 | ||
786 | /* Wait until the remote machine stops, then return, | |
787 | storing status in STATUS just as `wait' would. */ | |
788 | ||
789 | int | |
fba45db2 | 790 | adapt_wait (struct target_waitstatus *status) |
c906108c SS |
791 | { |
792 | /* Strings to look for. '?' means match any single character. | |
793 | Note that with the algorithm we use, the initial character | |
794 | of the string cannot recur in the string, or we will not | |
795 | find some cases of the string in the input. */ | |
c5aa993b | 796 | |
c906108c SS |
797 | static char bpt[] = "@"; |
798 | /* It would be tempting to look for "\n[__exit + 0x8]\n" | |
799 | but that requires loading symbols with "yc i" and even if | |
800 | we did do that we don't know that the file has symbols. */ | |
801 | static char exitmsg[] = "@????????I JMPTI GR121,LR0"; | |
802 | char *bp = bpt; | |
803 | char *ep = exitmsg; | |
804 | ||
805 | /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */ | |
806 | char swallowed[50]; | |
807 | /* Current position in swallowed. */ | |
808 | char *swallowed_p = swallowed; | |
809 | ||
810 | int ch; | |
811 | int ch_handled; | |
812 | int old_timeout = timeout; | |
813 | int old_immediate_quit = immediate_quit; | |
814 | ||
815 | status->kind = TARGET_WAITKIND_EXITED; | |
816 | status->value.integer = 0; | |
817 | ||
818 | if (need_artificial_trap != 0) | |
819 | { | |
820 | status->kind = TARGET_WAITKIND_STOPPED; | |
821 | status->value.sig = TARGET_SIGNAL_TRAP; | |
822 | need_artificial_trap--; | |
823 | return 0; | |
824 | } | |
825 | ||
c5aa993b JM |
826 | timeout = 0; /* Don't time out -- user program is running. */ |
827 | immediate_quit = 1; /* Helps ability to QUIT */ | |
828 | while (1) | |
829 | { | |
830 | QUIT; /* Let user quit and leave process running */ | |
c906108c SS |
831 | ch_handled = 0; |
832 | ch = readchar (); | |
c5aa993b JM |
833 | if (ch == *bp) |
834 | { | |
c906108c SS |
835 | bp++; |
836 | if (*bp == '\0') | |
837 | break; | |
838 | ch_handled = 1; | |
839 | ||
840 | *swallowed_p++ = ch; | |
c5aa993b JM |
841 | } |
842 | else | |
c906108c | 843 | bp = bpt; |
c5aa993b JM |
844 | if (ch == *ep || *ep == '?') |
845 | { | |
c906108c SS |
846 | ep++; |
847 | if (*ep == '\0') | |
848 | break; | |
849 | ||
850 | if (!ch_handled) | |
851 | *swallowed_p++ = ch; | |
852 | ch_handled = 1; | |
c5aa993b JM |
853 | } |
854 | else | |
c906108c | 855 | ep = exitmsg; |
c5aa993b JM |
856 | if (!ch_handled) |
857 | { | |
c906108c SS |
858 | char *p; |
859 | /* Print out any characters which have been swallowed. */ | |
860 | for (p = swallowed; p < swallowed_p; ++p) | |
861 | putc (*p, stdout); | |
862 | swallowed_p = swallowed; | |
863 | putc (ch, stdout); | |
c5aa993b JM |
864 | } |
865 | } | |
c906108c | 866 | expect_prompt (); |
c5aa993b | 867 | if (*bp == '\0') |
c906108c SS |
868 | { |
869 | status->kind = TARGET_WAITKIND_STOPPED; | |
870 | status->value.sig = TARGET_SIGNAL_TRAP; | |
871 | } | |
872 | else | |
873 | { | |
874 | status->kind = TARGET_WAITKIND_EXITED; | |
875 | status->value.integer = 0; | |
876 | } | |
877 | timeout = old_timeout; | |
878 | immediate_quit = old_immediate_quit; | |
879 | return 0; | |
880 | } | |
881 | ||
882 | /* Return the name of register number REGNO | |
883 | in the form input and output by adapt. | |
884 | ||
885 | Returns a pointer to a static buffer containing the answer. */ | |
886 | static char * | |
fba45db2 | 887 | get_reg_name (int regno) |
c906108c SS |
888 | { |
889 | static char buf[80]; | |
c5aa993b | 890 | if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32) |
c906108c SS |
891 | sprintf (buf, "GR%03d", regno - GR96_REGNUM + 96); |
892 | #if defined(GR64_REGNUM) | |
c5aa993b | 893 | else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32) |
c906108c SS |
894 | sprintf (buf, "GR%03d", regno - GR64_REGNUM + 64); |
895 | #endif | |
896 | else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128) | |
897 | sprintf (buf, "LR%03d", regno - LR0_REGNUM); | |
c5aa993b | 898 | else if (regno == Q_REGNUM) |
c906108c SS |
899 | strcpy (buf, "SR131"); |
900 | else if (regno >= BP_REGNUM && regno <= CR_REGNUM) | |
901 | sprintf (buf, "SR%03d", regno - BP_REGNUM + 133); | |
902 | else if (regno == ALU_REGNUM) | |
903 | strcpy (buf, "SR132"); | |
904 | else if (regno >= IPC_REGNUM && regno <= IPB_REGNUM) | |
905 | sprintf (buf, "SR%03d", regno - IPC_REGNUM + 128); | |
c5aa993b JM |
906 | else if (regno >= VAB_REGNUM && regno <= LRU_REGNUM) |
907 | { | |
908 | /* When a 29050 is in freeze-mode, read shadow pcs instead */ | |
909 | if ((regno >= NPC_REGNUM && regno <= PC2_REGNUM) && USE_SHADOW_PC) | |
910 | sprintf (buf, "SR%03d", regno - NPC_REGNUM + 20); | |
911 | else | |
912 | sprintf (buf, "SR%03d", regno - VAB_REGNUM); | |
913 | } | |
c906108c SS |
914 | else if (regno == GR1_REGNUM) |
915 | strcpy (buf, "GR001"); | |
916 | return buf; | |
917 | } | |
918 | ||
919 | /* Read the remote registers. */ | |
920 | ||
921 | static void | |
fba45db2 | 922 | adapt_fetch_registers (void) |
c906108c SS |
923 | { |
924 | int reg_index; | |
925 | int regnum_index; | |
926 | char tempbuf[10]; | |
c5aa993b JM |
927 | int sreg_buf[16]; |
928 | int i, j; | |
c906108c SS |
929 | |
930 | /* | |
931 | * Global registers | |
932 | */ | |
933 | #if defined(GR64_REGNUM) | |
934 | write (adapt_desc, "dw gr64,gr95\r", 13); | |
935 | for (reg_index = 64, regnum_index = GR64_REGNUM; | |
936 | reg_index < 96; | |
937 | reg_index += 4, regnum_index += 4) | |
938 | { | |
939 | sprintf (tempbuf, "GR%03d ", reg_index); | |
940 | expect (tempbuf); | |
941 | get_hex_regs (4, regnum_index); | |
942 | expect ("\n"); | |
943 | } | |
944 | #endif | |
945 | write (adapt_desc, "dw gr96,gr127\r", 14); | |
946 | for (reg_index = 96, regnum_index = GR96_REGNUM; | |
947 | reg_index < 128; | |
948 | reg_index += 4, regnum_index += 4) | |
949 | { | |
950 | sprintf (tempbuf, "GR%03d ", reg_index); | |
951 | expect (tempbuf); | |
952 | get_hex_regs (4, regnum_index); | |
953 | expect ("\n"); | |
954 | } | |
955 | ||
956 | /* | |
957 | * Local registers | |
958 | */ | |
959 | for (i = 0; i < 128; i += 32) | |
960 | { | |
961 | /* The PC has a tendency to hang if we get these | |
c5aa993b | 962 | all in one fell swoop ("dw lr0,lr127"). */ |
c906108c SS |
963 | sprintf (tempbuf, "dw lr%d\r", i); |
964 | write (adapt_desc, tempbuf, strlen (tempbuf)); | |
965 | for (reg_index = i, regnum_index = LR0_REGNUM + i; | |
966 | reg_index < i + 32; | |
967 | reg_index += 4, regnum_index += 4) | |
968 | { | |
969 | sprintf (tempbuf, "LR%03d ", reg_index); | |
970 | expect (tempbuf); | |
971 | get_hex_regs (4, regnum_index); | |
972 | expect ("\n"); | |
973 | } | |
974 | } | |
975 | ||
976 | /* | |
977 | * Special registers | |
978 | */ | |
979 | sprintf (tempbuf, "dw sr0\r"); | |
980 | write (adapt_desc, tempbuf, strlen (tempbuf)); | |
c5aa993b JM |
981 | for (i = 0; i < 4; i++) |
982 | { /* SR0 - SR14 */ | |
983 | sprintf (tempbuf, "SR%3d", i * 4); | |
984 | expect (tempbuf); | |
985 | for (j = 0; j < (i == 3 ? 3 : 4); j++) | |
986 | sreg_buf[i * 4 + j] = get_hex_word (); | |
987 | } | |
988 | expect_prompt (); | |
c906108c SS |
989 | /* |
990 | * Read the pcs individually if we are in freeze mode. | |
991 | * See get_reg_name(), it translates the register names for the pcs to | |
992 | * the names of the shadow pcs. | |
c5aa993b JM |
993 | */ |
994 | if (USE_SHADOW_PC) | |
995 | { | |
996 | sreg_buf[10] = read_register (NPC_REGNUM); /* pc0 */ | |
997 | sreg_buf[11] = read_register (PC_REGNUM); /* pc1 */ | |
998 | sreg_buf[12] = read_register (PC2_REGNUM); /* pc2 */ | |
999 | } | |
1000 | for (i = 0; i < 14; i++) /* Supply vab -> lru */ | |
1001 | supply_register (VAB_REGNUM + i, (char *) &sreg_buf[i]); | |
c906108c SS |
1002 | sprintf (tempbuf, "dw sr128\r"); |
1003 | write (adapt_desc, tempbuf, strlen (tempbuf)); | |
c5aa993b JM |
1004 | for (i = 0; i < 2; i++) |
1005 | { /* SR128 - SR135 */ | |
1006 | sprintf (tempbuf, "SR%3d", 128 + i * 4); | |
1007 | expect (tempbuf); | |
1008 | for (j = 0; j < 4; j++) | |
1009 | sreg_buf[i * 4 + j] = get_hex_word (); | |
1010 | } | |
1011 | expect_prompt (); | |
1012 | supply_register (IPC_REGNUM, (char *) &sreg_buf[0]); | |
1013 | supply_register (IPA_REGNUM, (char *) &sreg_buf[1]); | |
1014 | supply_register (IPB_REGNUM, (char *) &sreg_buf[2]); | |
1015 | supply_register (Q_REGNUM, (char *) &sreg_buf[3]); | |
1016 | /* Skip ALU */ | |
1017 | supply_register (BP_REGNUM, (char *) &sreg_buf[5]); | |
1018 | supply_register (FC_REGNUM, (char *) &sreg_buf[6]); | |
1019 | supply_register (CR_REGNUM, (char *) &sreg_buf[7]); | |
c906108c SS |
1020 | |
1021 | /* There doesn't seem to be any way to get these. */ | |
1022 | { | |
1023 | int val = -1; | |
1024 | supply_register (FPE_REGNUM, (char *) &val); | |
1025 | supply_register (INTE_REGNUM, (char *) &val); | |
1026 | supply_register (FPS_REGNUM, (char *) &val); | |
1027 | supply_register (EXO_REGNUM, (char *) &val); | |
1028 | } | |
1029 | ||
1030 | write (adapt_desc, "dw gr1,gr1\r", 11); | |
1031 | expect ("GR001 "); | |
1032 | get_hex_regs (1, GR1_REGNUM); | |
1033 | expect_prompt (); | |
1034 | } | |
1035 | ||
1036 | /* Fetch register REGNO, or all registers if REGNO is -1. | |
1037 | */ | |
1038 | static void | |
fba45db2 | 1039 | adapt_fetch_register (int regno) |
c906108c SS |
1040 | { |
1041 | if (regno == -1) | |
1042 | adapt_fetch_registers (); | |
1043 | else | |
1044 | { | |
1045 | char *name = get_reg_name (regno); | |
1046 | fprintf (adapt_stream, "dw %s,%s\r", name, name); | |
1047 | expect (name); | |
1048 | expect (" "); | |
1049 | get_hex_regs (1, regno); | |
1050 | expect_prompt (); | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | /* Store the remote registers from the contents of the block REGS. */ | |
1055 | ||
1056 | static void | |
fba45db2 | 1057 | adapt_store_registers (void) |
c906108c SS |
1058 | { |
1059 | int i, j; | |
1060 | ||
1061 | fprintf (adapt_stream, "s gr1,%x\r", read_register (GR1_REGNUM)); | |
1062 | expect_prompt (); | |
1063 | ||
1064 | #if defined(GR64_REGNUM) | |
1065 | for (j = 0; j < 32; j += 16) | |
1066 | { | |
1067 | fprintf (adapt_stream, "s gr%d,", j + 64); | |
c5aa993b | 1068 | for (i = 0; i < 15; ++i) |
c906108c SS |
1069 | fprintf (adapt_stream, "%x,", read_register (GR64_REGNUM + j + i)); |
1070 | fprintf (adapt_stream, "%x\r", read_register (GR64_REGNUM + j + 15)); | |
1071 | expect_prompt (); | |
1072 | } | |
1073 | #endif | |
1074 | for (j = 0; j < 32; j += 16) | |
1075 | { | |
1076 | fprintf (adapt_stream, "s gr%d,", j + 96); | |
c5aa993b | 1077 | for (i = 0; i < 15; ++i) |
c906108c SS |
1078 | fprintf (adapt_stream, "%x,", read_register (GR96_REGNUM + j + i)); |
1079 | fprintf (adapt_stream, "%x\r", read_register (GR96_REGNUM + j + 15)); | |
1080 | expect_prompt (); | |
1081 | } | |
1082 | ||
1083 | for (j = 0; j < 128; j += 16) | |
1084 | { | |
1085 | fprintf (adapt_stream, "s lr%d,", j); | |
c5aa993b | 1086 | for (i = 0; i < 15; ++i) |
c906108c SS |
1087 | fprintf (adapt_stream, "%x,", read_register (LR0_REGNUM + j + i)); |
1088 | fprintf (adapt_stream, "%x\r", read_register (LR0_REGNUM + j + 15)); | |
1089 | expect_prompt (); | |
1090 | } | |
1091 | ||
1092 | fprintf (adapt_stream, "s sr128,%x,%x,%x\r", read_register (IPC_REGNUM), | |
1093 | read_register (IPA_REGNUM), read_register (IPB_REGNUM)); | |
1094 | expect_prompt (); | |
1095 | fprintf (adapt_stream, "s sr133,%x,%x,%x\r", read_register (BP_REGNUM), | |
1096 | read_register (FC_REGNUM), read_register (CR_REGNUM)); | |
1097 | expect_prompt (); | |
1098 | fprintf (adapt_stream, "s sr131,%x\r", read_register (Q_REGNUM)); | |
1099 | expect_prompt (); | |
1100 | fprintf (adapt_stream, "s sr0,"); | |
c5aa993b | 1101 | for (i = 0; i < 7; ++i) |
c906108c SS |
1102 | fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i)); |
1103 | expect_prompt (); | |
1104 | fprintf (adapt_stream, "s sr7,"); | |
c5aa993b | 1105 | for (i = 7; i < 14; ++i) |
c906108c SS |
1106 | fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i)); |
1107 | expect_prompt (); | |
1108 | } | |
1109 | ||
1110 | /* Store register REGNO, or all if REGNO == -1. | |
1111 | Return errno value. */ | |
1112 | void | |
fba45db2 | 1113 | adapt_store_register (int regno) |
c906108c SS |
1114 | { |
1115 | /* printf("adapt_store_register() called.\n"); fflush(stdout); /* */ | |
1116 | if (regno == -1) | |
1117 | adapt_store_registers (); | |
1118 | else | |
1119 | { | |
1120 | char *name = get_reg_name (regno); | |
1121 | fprintf (adapt_stream, "s %s,%x\r", name, read_register (regno)); | |
1122 | /* Setting GR1 changes the numbers of all the locals, so | |
c5aa993b JM |
1123 | invalidate the register cache. Do this *after* calling |
1124 | read_register, because we want read_register to return the | |
1125 | value that write_register has just stuffed into the registers | |
1126 | array, not the value of the register fetched from the | |
1127 | inferior. */ | |
c906108c SS |
1128 | if (regno == GR1_REGNUM) |
1129 | registers_changed (); | |
1130 | expect_prompt (); | |
1131 | } | |
1132 | } | |
1133 | ||
1134 | /* Get ready to modify the registers array. On machines which store | |
1135 | individual registers, this doesn't need to do anything. On machines | |
1136 | which store all the registers in one fell swoop, this makes sure | |
1137 | that registers contains all the registers from the program being | |
1138 | debugged. */ | |
1139 | ||
1140 | void | |
fba45db2 | 1141 | adapt_prepare_to_store (void) |
c906108c SS |
1142 | { |
1143 | /* Do nothing, since we can store individual regs */ | |
1144 | } | |
1145 | ||
c5aa993b | 1146 | static CORE_ADDR |
fba45db2 | 1147 | translate_addr (CORE_ADDR addr) |
c906108c SS |
1148 | { |
1149 | #if defined(KERNEL_DEBUGGING) | |
c5aa993b JM |
1150 | /* Check for a virtual address in the kernel */ |
1151 | /* Assume physical address of ublock is in paddr_u register */ | |
1152 | if (addr >= UVADDR) | |
1153 | { | |
1154 | /* PADDR_U register holds the physical address of the ublock */ | |
1155 | CORE_ADDR i = (CORE_ADDR) read_register (PADDR_U_REGNUM); | |
1156 | return (i + addr - (CORE_ADDR) UVADDR); | |
1157 | } | |
1158 | else | |
1159 | { | |
1160 | return (addr); | |
1161 | } | |
c906108c | 1162 | #else |
c5aa993b | 1163 | return (addr); |
c906108c SS |
1164 | #endif |
1165 | } | |
1166 | ||
1167 | ||
1168 | /* FIXME! Merge these two. */ | |
1169 | int | |
fba45db2 | 1170 | adapt_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len, int write) |
c906108c SS |
1171 | { |
1172 | ||
c5aa993b | 1173 | memaddr = translate_addr (memaddr); |
c906108c SS |
1174 | |
1175 | if (write) | |
1176 | return adapt_write_inferior_memory (memaddr, myaddr, len); | |
1177 | else | |
1178 | return adapt_read_inferior_memory (memaddr, myaddr, len); | |
1179 | } | |
1180 | ||
1181 | void | |
fba45db2 | 1182 | adapt_files_info (void) |
c906108c | 1183 | { |
c5aa993b JM |
1184 | printf_filtered ("\tAttached to %s at %d baud and running program %s\n", |
1185 | dev_name, baudrate, prog_name); | |
1186 | printf_filtered ("\ton an %s processor.\n", processor_name[processor_type]); | |
c906108c SS |
1187 | } |
1188 | ||
1189 | /* Copy LEN bytes of data from debugger memory at MYADDR | |
1190 | to inferior's memory at MEMADDR. Returns errno value. | |
c5aa993b | 1191 | * sb/sh instructions don't work on unaligned addresses, when TU=1. |
c906108c SS |
1192 | */ |
1193 | int | |
fba45db2 | 1194 | adapt_write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c SS |
1195 | { |
1196 | int i; | |
1197 | unsigned int cps; | |
1198 | ||
1199 | /* Turn TU bit off so we can do 'sb' commands */ | |
c5aa993b | 1200 | cps = read_register (CPS_REGNUM); |
c906108c | 1201 | if (cps & 0x00000800) |
c5aa993b | 1202 | write_register (CPS_REGNUM, cps & ~(0x00000800)); |
c906108c SS |
1203 | |
1204 | for (i = 0; i < len; i++) | |
1205 | { | |
1206 | if ((i % 16) == 0) | |
1207 | fprintf (adapt_stream, "sb %x,", memaddr + i); | |
1208 | if ((i % 16) == 15 || i == len - 1) | |
1209 | { | |
c5aa993b | 1210 | fprintf (adapt_stream, "%x\r", ((unsigned char *) myaddr)[i]); |
c906108c SS |
1211 | expect_prompt (); |
1212 | } | |
1213 | else | |
c5aa993b | 1214 | fprintf (adapt_stream, "%x,", ((unsigned char *) myaddr)[i]); |
c906108c SS |
1215 | } |
1216 | /* Restore the old value of cps if the TU bit was on */ | |
1217 | if (cps & 0x00000800) | |
c5aa993b | 1218 | write_register (CPS_REGNUM, cps); |
c906108c SS |
1219 | return len; |
1220 | } | |
1221 | ||
1222 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result | |
1223 | at debugger address MYADDR. Returns errno value. */ | |
1224 | int | |
fba45db2 | 1225 | adapt_read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c SS |
1226 | { |
1227 | int i; | |
1228 | ||
1229 | /* Number of bytes read so far. */ | |
1230 | int count; | |
1231 | ||
1232 | /* Starting address of this pass. */ | |
1233 | unsigned long startaddr; | |
1234 | ||
1235 | /* Number of bytes to read in this pass. */ | |
1236 | int len_this_pass; | |
1237 | ||
1238 | /* Note that this code works correctly if startaddr is just less | |
1239 | than UINT_MAX (well, really CORE_ADDR_MAX if there was such a | |
1240 | thing). That is, something like | |
1241 | adapt_read_bytes (CORE_ADDR_MAX - 4, foo, 4) | |
1242 | works--it never adds len to memaddr and gets 0. */ | |
1243 | /* However, something like | |
1244 | adapt_read_bytes (CORE_ADDR_MAX - 3, foo, 4) | |
1245 | doesn't need to work. Detect it and give up if there's an attempt | |
1246 | to do that. */ | |
1247 | ||
1248 | if (((memaddr - 1) + len) < memaddr) | |
1249 | return EIO; | |
c5aa993b | 1250 | |
c906108c SS |
1251 | startaddr = memaddr; |
1252 | count = 0; | |
1253 | while (count < len) | |
1254 | { | |
1255 | len_this_pass = 16; | |
1256 | if ((startaddr % 16) != 0) | |
1257 | len_this_pass -= startaddr % 16; | |
1258 | if (len_this_pass > (len - count)) | |
1259 | len_this_pass = (len - count); | |
1260 | ||
1261 | fprintf (adapt_stream, "db %x,%x\r", startaddr, | |
1262 | (startaddr - 1) + len_this_pass); | |
1263 | ||
c5aa993b | 1264 | #ifdef NOTDEF /* Why do this */ |
c906108c SS |
1265 | expect ("\n"); |
1266 | /* Look for 8 hex digits. */ | |
1267 | i = 0; | |
1268 | while (1) | |
1269 | { | |
1270 | if (isxdigit (readchar ())) | |
1271 | ++i; | |
1272 | else | |
1273 | { | |
1274 | expect_prompt (); | |
1275 | error ("Hex digit expected from remote system."); | |
1276 | } | |
1277 | if (i >= 8) | |
1278 | break; | |
1279 | } | |
1280 | #endif /* NOTDEF */ | |
1281 | ||
1282 | expect (" "); | |
1283 | ||
1284 | for (i = 0; i < len_this_pass; i++) | |
1285 | get_hex_byte (&myaddr[count++]); | |
1286 | ||
1287 | expect_prompt (); | |
1288 | ||
1289 | startaddr += len_this_pass; | |
1290 | } | |
1291 | return count; | |
1292 | } | |
1293 | ||
1294 | #define MAX_BREAKS 8 | |
c5aa993b | 1295 | static int num_brkpts = 0; |
e082ddca KB |
1296 | |
1297 | /* Insert a breakpoint at ADDR. SAVE is normally the address of the | |
1298 | pattern buffer where the instruction that the breakpoint overwrites | |
1299 | is saved. It is unused here since the Adapt Monitor is responsible | |
1300 | for saving/restoring the original instruction. */ | |
1301 | ||
c906108c | 1302 | static int |
e082ddca | 1303 | adapt_insert_breakpoint (CORE_ADDR addr, char *save) |
c906108c | 1304 | { |
c5aa993b JM |
1305 | if (num_brkpts < MAX_BREAKS) |
1306 | { | |
1307 | num_brkpts++; | |
1308 | fprintf (adapt_stream, "B %x", addr); | |
1309 | fprintf (adapt_stream, "\r"); | |
1310 | expect_prompt (); | |
1311 | return (0); /* Success */ | |
1312 | } | |
1313 | else | |
1314 | { | |
1315 | fprintf_filtered (gdb_stderr, | |
1316 | "Too many break points, break point not installed\n"); | |
1317 | return (1); /* Failure */ | |
1318 | } | |
c906108c SS |
1319 | |
1320 | } | |
e082ddca KB |
1321 | |
1322 | /* Remove a breakpoint at ADDR. SAVE is normally the previously | |
1323 | saved pattern, but is unused here as the Adapt Monitor is | |
1324 | responsible for saving/restoring instructions. */ | |
1325 | ||
c906108c | 1326 | static int |
e082ddca | 1327 | adapt_remove_breakpoint (CORE_ADDR addr, char *save) |
c906108c | 1328 | { |
c5aa993b JM |
1329 | if (num_brkpts > 0) |
1330 | { | |
1331 | num_brkpts--; | |
1332 | fprintf (adapt_stream, "BR %x", addr); | |
1333 | fprintf (adapt_stream, "\r"); | |
1334 | fflush (adapt_stream); | |
1335 | expect_prompt (); | |
1336 | } | |
1337 | return (0); | |
c906108c SS |
1338 | } |
1339 | ||
1340 | /* Clear the adapts notion of what the break points are */ | |
1341 | static int | |
fba45db2 | 1342 | adapt_clear_breakpoints (void) |
c5aa993b JM |
1343 | { |
1344 | if (adapt_stream) | |
1345 | { | |
1346 | fprintf (adapt_stream, "BR"); /* Clear all break points */ | |
1347 | fprintf (adapt_stream, "\r"); | |
1348 | fflush (adapt_stream); | |
1349 | expect_prompt (); | |
1350 | } | |
c906108c SS |
1351 | num_brkpts = 0; |
1352 | } | |
1353 | static void | |
fba45db2 | 1354 | adapt_mourn (void) |
c5aa993b JM |
1355 | { |
1356 | adapt_clear_breakpoints (); | |
1357 | pop_target (); /* Pop back to no-child state */ | |
c906108c SS |
1358 | generic_mourn_inferior (); |
1359 | } | |
1360 | ||
1361 | /* Display everthing we read in from the adapt until we match/see the | |
1362 | * specified string | |
1363 | */ | |
1364 | static int | |
fba45db2 | 1365 | display_until (char *str) |
c906108c | 1366 | { |
c5aa993b JM |
1367 | int i = 0, j, c; |
1368 | ||
1369 | while (c = readchar ()) | |
1370 | { | |
1371 | if (c == str[i]) | |
1372 | { | |
1373 | i++; | |
1374 | if (i == strlen (str)) | |
1375 | return; | |
1376 | } | |
1377 | else | |
1378 | { | |
1379 | if (i) | |
1380 | { | |
1381 | for (j = 0; j < i; j++) /* Put everthing we matched */ | |
1382 | putchar (str[j]); | |
1383 | i = 0; | |
1384 | } | |
1385 | putchar (c); | |
c906108c | 1386 | } |
c5aa993b | 1387 | } |
c906108c SS |
1388 | |
1389 | } | |
1390 | ||
1391 | ||
1392 | /* Put a command string, in args, out to the adapt. The adapt is assumed to | |
1393 | be in raw mode, all writing/reading done through adapt_desc. | |
1394 | Ouput from the adapt is placed on the users terminal until the | |
1395 | prompt from the adapt is seen. | |
1396 | FIXME: Can't handle commands that take input. */ | |
1397 | ||
1398 | void | |
fba45db2 | 1399 | adapt_com (char *args, int fromtty) |
c906108c | 1400 | { |
c5aa993b JM |
1401 | if (!adapt_stream) |
1402 | { | |
1403 | printf_filtered ("Adapt not open. Use the 'target' command to open.\n"); | |
1404 | return; | |
1405 | } | |
1406 | ||
1407 | /* Clear all input so only command relative output is displayed */ | |
1408 | slurp_input (); | |
c906108c | 1409 | |
c5aa993b JM |
1410 | switch (islower (args[0]) ? toupper (args[0]) : args[0]) |
1411 | { | |
1412 | default: | |
1413 | printf_filtered ("Unknown/Unimplemented adapt command '%s'\n", args); | |
1414 | break; | |
1415 | case 'G': /* Go, begin execution */ | |
1416 | write (adapt_desc, args, strlen (args)); | |
1417 | write (adapt_desc, "\r", 1); | |
1418 | expect_prompt (); | |
1419 | break; | |
1420 | case 'B': /* Break points, B or BR */ | |
1421 | case 'C': /* Check current 29k status (running/halted) */ | |
1422 | case 'D': /* Display data/registers */ | |
1423 | case 'I': /* Input from i/o space */ | |
1424 | case 'J': /* Jam an instruction */ | |
1425 | case 'K': /* Kill, stop execution */ | |
1426 | case 'L': /* Disassemble */ | |
1427 | case 'O': /* Output to i/o space */ | |
1428 | case 'T': /* Trace */ | |
1429 | case 'P': /* Pulse an input line */ | |
1430 | case 'X': /* Examine special purpose registers */ | |
1431 | case 'Z': /* Display trace buffer */ | |
1432 | write (adapt_desc, args, strlen (args)); | |
1433 | write (adapt_desc, "\r", 1); | |
1434 | expect (args); /* Don't display the command */ | |
1435 | display_until ("# "); | |
1436 | break; | |
1437 | /* Begin commands that take input in the form 'c x,y[,z...]' */ | |
1438 | case 'S': /* Set memory or register */ | |
1439 | if (strchr (args, ',')) | |
1440 | { /* Assume it is properly formatted */ | |
1441 | write (adapt_desc, args, strlen (args)); | |
1442 | write (adapt_desc, "\r", 1); | |
1443 | expect_prompt (); | |
c906108c | 1444 | } |
c5aa993b JM |
1445 | break; |
1446 | } | |
c906108c SS |
1447 | } |
1448 | ||
1449 | /* Define the target subroutine names */ | |
1450 | ||
c5aa993b | 1451 | struct target_ops adapt_ops; |
c906108c | 1452 | |
c5aa993b JM |
1453 | static void |
1454 | init_adapt_ops (void) | |
c906108c | 1455 | { |
c5aa993b JM |
1456 | adapt_ops.to_shortname = "adapt"; |
1457 | adapt_ops.to_longname = "Remote AMD `Adapt' target"; | |
1458 | adapt_ops.to_doc = "Remote debug an AMD 290*0 using an `Adapt' monitor via RS232"; | |
1459 | adapt_ops.to_open = adapt_open; | |
1460 | adapt_ops.to_close = adapt_close; | |
c906108c SS |
1461 | adapt_ops.to_attach = adapt_attach; |
1462 | adapt_ops.to_post_attach = NULL; | |
c5aa993b | 1463 | adapt_ops.to_require_attach = NULL; |
c906108c SS |
1464 | adapt_ops.to_detach = adapt_detach; |
1465 | adapt_ops.to_require_detach = NULL; | |
1466 | adapt_ops.to_resume = adapt_resume; | |
c5aa993b | 1467 | adapt_ops.to_wait = adapt_wait; |
c906108c | 1468 | adapt_ops.to_post_wait = NULL; |
c5aa993b JM |
1469 | adapt_ops.to_fetch_registers = adapt_fetch_register; |
1470 | adapt_ops.to_store_registers = adapt_store_register; | |
c906108c | 1471 | adapt_ops.to_prepare_to_store = adapt_prepare_to_store; |
c5aa993b JM |
1472 | adapt_ops.to_xfer_memory = adapt_xfer_inferior_memory; |
1473 | adapt_ops.to_files_info = adapt_files_info; | |
c906108c | 1474 | adapt_ops.to_insert_breakpoint = adapt_insert_breakpoint; |
c5aa993b JM |
1475 | adapt_ops.to_remove_breakpoint = adapt_remove_breakpoint; |
1476 | adapt_ops.to_terminal_init = 0; | |
1477 | adapt_ops.to_terminal_inferior = 0; | |
1478 | adapt_ops.to_terminal_ours_for_output = 0; | |
1479 | adapt_ops.to_terminal_ours = 0; | |
1480 | adapt_ops.to_terminal_info = 0; | |
1481 | adapt_ops.to_kill = adapt_kill; | |
1482 | adapt_ops.to_load = adapt_load; | |
1483 | adapt_ops.to_lookup_symbol = 0; | |
1484 | adapt_ops.to_create_inferior = adapt_create_inferior; | |
c906108c SS |
1485 | adapt_ops.to_post_startup_inferior = NULL; |
1486 | adapt_ops.to_acknowledge_created_inferior = NULL; | |
c5aa993b JM |
1487 | adapt_ops.to_clone_and_follow_inferior = NULL; |
1488 | adapt_ops.to_post_follow_inferior_by_clone = NULL; | |
c906108c SS |
1489 | adapt_ops.to_insert_fork_catchpoint = NULL; |
1490 | adapt_ops.to_remove_fork_catchpoint = NULL; | |
1491 | adapt_ops.to_insert_vfork_catchpoint = NULL; | |
c5aa993b | 1492 | adapt_ops.to_remove_vfork_catchpoint = NULL; |
c906108c SS |
1493 | adapt_ops.to_has_forked = NULL; |
1494 | adapt_ops.to_has_vforked = NULL; | |
c5aa993b JM |
1495 | adapt_ops.to_can_follow_vfork_prior_to_exec = NULL; |
1496 | adapt_ops.to_post_follow_vfork = NULL; | |
c906108c SS |
1497 | adapt_ops.to_insert_exec_catchpoint = NULL; |
1498 | adapt_ops.to_remove_exec_catchpoint = NULL; | |
1499 | adapt_ops.to_has_execd = NULL; | |
1500 | adapt_ops.to_reported_exec_events_per_exec_call = NULL; | |
1501 | adapt_ops.to_has_exited = NULL; | |
c5aa993b JM |
1502 | adapt_ops.to_mourn_inferior = adapt_mourn; |
1503 | adapt_ops.to_can_run = 0; | |
1504 | adapt_ops.to_notice_signals = 0; | |
1505 | adapt_ops.to_thread_alive = 0; | |
1506 | adapt_ops.to_stop = 0; /* process_stratum; */ | |
c906108c SS |
1507 | adapt_ops.to_pid_to_exec_file = NULL; |
1508 | adapt_ops.to_core_file_to_sym_file = NULL; | |
c5aa993b JM |
1509 | adapt_ops.to_stratum = 0; |
1510 | adapt_ops.DONT_USE = 0; | |
1511 | adapt_ops.to_has_all_memory = 1; | |
1512 | adapt_ops.to_has_memory = 1; | |
1513 | adapt_ops.to_has_stack = 1; | |
1514 | adapt_ops.to_has_registers = 1; | |
1515 | adapt_ops.to_has_execution = 0; | |
1516 | adapt_ops.to_sections = 0; | |
1517 | adapt_ops.to_sections_end = 0; | |
1518 | adapt_ops.to_magic = OPS_MAGIC; | |
1519 | } /* init_adapt_ops */ | |
c906108c SS |
1520 | |
1521 | void | |
fba45db2 | 1522 | _initialize_remote_adapt (void) |
c906108c | 1523 | { |
c5aa993b | 1524 | init_adapt_ops (); |
c906108c SS |
1525 | add_target (&adapt_ops); |
1526 | add_com ("adapt <command>", class_obscure, adapt_com, | |
c5aa993b | 1527 | "Send a command to the AMD Adapt remote monitor."); |
c906108c | 1528 | } |