Commit | Line | Data |
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91c87211 JK |
1 | /* Memory-access and commands for remote es1800 processes, for GDB. |
2 | Copyright (C) 1988, 1992 Free Software Foundation, Inc. | |
3 | ||
4 | This file is added to GDB to make it possible to do debugging via an | |
5 | ES-1800 emulator. The code was originally written by Johan Holmberg | |
6 | TT/SJ Ericsson Telecom AB and later modified by Johan Henriksson | |
7 | TT/SJ. It was modified for gdb 4.0 by TX/DK Jan Nordenand by TX/DKG | |
8 | Harald Johansen. | |
9 | ||
10 | This file is part of GDB. | |
11 | ||
12 | GDB is free software; you can redistribute it and/or modify | |
13 | it under the terms of the GNU General Public License as published by | |
14 | the Free Software Foundation; either version 1, or (at your option) | |
15 | any later version. | |
16 | ||
17 | GDB is distributed in the hope that it will be useful, | |
18 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | GNU General Public License for more details. | |
21 | ||
22 | You should have received a copy of the GNU General Public License | |
23 | along with GDB; see the file COPYING. If not, write to | |
24 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
25 | ||
26 | ||
27 | /* Emulator communication protocol. | |
28 | All values are encoded in ascii hex digits. | |
29 | ||
30 | Request | |
31 | Command | |
32 | Reply | |
33 | read registers: | |
34 | DR<cr> | |
35 | - 0 - - 1 - - 2 - - 3 - - 4 - - 5 - -- 6 - - 7 - | |
36 | D = XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX | |
37 | A = XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX | |
38 | PC = XXXXXX SSP = XXXXXX USP = XXXXXX SR = XXXXXXXX | |
39 | > | |
40 | Each byte of register data is described by two hex digits. | |
41 | ||
42 | write regs | |
43 | D0=XXXXXXXX<cr> | |
44 | >D1=XXXXXXXX<cr> | |
45 | >D2=XXXXXXXX<cr> | |
46 | >D3=XXXXXXXX<cr> | |
47 | >D4=XXXXXXXX<cr> | |
48 | >D5=XXXXXXXX<cr> | |
49 | >D6=XXXXXXXX<cr> | |
50 | >D7=XXXXXXXX<cr> | |
51 | >A0=XXXXXXXX<cr> | |
52 | >A1=XXXXXXXX<cr> | |
53 | >A2=XXXXXXXX<cr> | |
54 | >A3=XXXXXXXX<cr> | |
55 | >A4=XXXXXXXX<cr> | |
56 | >A5=XXXXXXXX<cr> | |
57 | >A6=XXXXXXXX<cr> | |
58 | >A7=XXXXXXXX<cr> | |
59 | >SR=XXXXXXXX<cr> | |
60 | >PC=XXXXXX<cr> | |
61 | > | |
62 | Each byte of register data is described by two hex digits. | |
63 | ||
64 | read mem | |
65 | @.BAA..AA | |
66 | $FFFFFFXX | |
67 | > | |
68 | AA..AA is address, XXXXXXX is the contents | |
69 | ||
70 | write mem | |
71 | @.BAA..AA=$XXXXXXXX | |
72 | > | |
73 | AA..AA is address, XXXXXXXX is data | |
74 | ||
75 | cont | |
76 | PC=$AA..AA | |
77 | >RBK | |
78 | R> | |
79 | AA..AA is address to resume. If AA..AA is omitted, resume at same address. | |
80 | ||
81 | step | |
82 | PC=$AA..AA | |
83 | >STP | |
84 | R> | |
85 | AA..AA is address to resume. If AA..AA is omitted, resume at same address. | |
86 | ||
87 | kill req | |
88 | STP | |
89 | > | |
90 | */ | |
91 | ||
92 | ||
895efe6b JK |
93 | #if 0 |
94 | /* Comment out entire file until it can be fixed (need to clean up | |
95 | TERMINAL, etc.). */ | |
96 | ||
91c87211 JK |
97 | #include <stdio.h> |
98 | #include <signal.h> | |
99 | #include <sys/ioctl.h> | |
100 | #include <sys/file.h> | |
101 | #include <errno.h> | |
102 | #include <ctype.h> | |
103 | #include <string.h> | |
104 | #include <setjmp.h> | |
105 | #include <fcntl.h> | |
106 | #include "defs.h" | |
107 | #include "frame.h" | |
108 | #include "inferior.h" | |
109 | #include "target.h" | |
110 | #include "wait.h" | |
111 | #include "terminal.h" | |
112 | #include "command.h" | |
a94abe5b | 113 | #include "remote-utils.h" |
91c87211 JK |
114 | |
115 | #ifdef USG | |
116 | #include <sys/types.h> | |
117 | #include <sgtty.h> | |
118 | #endif | |
119 | ||
120 | #include <signal.h> | |
121 | ||
122 | /* External variables referenced. */ | |
123 | ||
124 | extern bfd *exec_bfd; | |
125 | ||
126 | /* Prototypes for local functions */ | |
127 | ||
128 | static void | |
129 | es1800_child_detach PARAMS ((char *, int)); | |
130 | ||
131 | static void | |
132 | es1800_child_open PARAMS ((char *, int)); | |
133 | ||
134 | static void | |
135 | es1800_transparent PARAMS ((char *, int)); | |
136 | ||
137 | static void | |
138 | es1800_create_inferior PARAMS ((char *, char *, char **)); | |
139 | ||
140 | static void | |
141 | es1800_load PARAMS ((char *, int)); | |
142 | ||
143 | static void | |
144 | es1800_kill PARAMS ((void)); | |
145 | ||
146 | static int | |
147 | verify_break PARAMS ((int)); | |
148 | ||
149 | static int | |
150 | es1800_remove_breakpoint PARAMS ((CORE_ADDR, char *)); | |
151 | ||
152 | static int | |
153 | es1800_insert_breakpoint PARAMS ((CORE_ADDR, char *)); | |
154 | ||
155 | static void | |
156 | es1800_files_info PARAMS ((struct target_ops *)); | |
157 | ||
158 | static int | |
159 | es1800_xfer_inferior_memory PARAMS ((CORE_ADDR, char *, int, int, | |
160 | struct target_ops *)); | |
161 | ||
162 | static void | |
163 | es1800_prepare_to_store PARAMS ((void)); | |
164 | ||
165 | static int | |
166 | es1800_wait PARAMS ((WAITTYPE *)); | |
167 | ||
67ac9759 | 168 | static void es1800_resume PARAMS ((int, int, enum target_signal)); |
91c87211 JK |
169 | |
170 | static void | |
171 | es1800_detach PARAMS ((char *, int)); | |
172 | ||
173 | static void | |
174 | es1800_attach PARAMS ((char *, int)); | |
175 | ||
176 | static int | |
177 | damn_b PARAMS ((char *)); | |
178 | ||
179 | static void | |
180 | es1800_open PARAMS ((char *, int)); | |
181 | ||
182 | static void | |
183 | es1800_timer PARAMS ((void)); | |
184 | ||
185 | static void | |
186 | es1800_reset PARAMS ((char *)); | |
187 | ||
188 | static void | |
189 | es1800_request_quit PARAMS ((void)); | |
190 | ||
191 | static int | |
192 | readchar PARAMS ((void)); | |
193 | ||
194 | static void | |
195 | expect PARAMS ((char *, int)); | |
196 | ||
197 | static void | |
198 | expect_prompt PARAMS ((void)); | |
199 | ||
200 | static void | |
201 | download PARAMS ((FILE *, int, int)); | |
202 | ||
203 | #if 0 | |
204 | static void | |
205 | bfd_copy PARAMS ((bfd *, bfd *)); | |
206 | #endif | |
207 | ||
208 | static void | |
209 | get_break_addr PARAMS ((int, CORE_ADDR *)); | |
210 | ||
211 | static int | |
212 | fromhex PARAMS ((int)); | |
213 | ||
214 | static int | |
215 | tohex PARAMS ((int)); | |
216 | ||
217 | static void | |
218 | es1800_close PARAMS ((int)); | |
219 | ||
220 | static void | |
221 | es1800_fetch_registers PARAMS ((void)); | |
222 | ||
223 | static void | |
224 | es1800_fetch_register PARAMS ((int)); | |
225 | ||
226 | static void | |
227 | es1800_store_register PARAMS ((int)); | |
228 | ||
229 | static void | |
230 | es1800_read_bytes PARAMS ((CORE_ADDR, char *, int)); | |
231 | ||
232 | static void | |
233 | es1800_write_bytes PARAMS ((CORE_ADDR, char *, int)); | |
234 | ||
235 | static void | |
236 | send_with_reply PARAMS ((char *, char *, int)); | |
237 | ||
238 | static void | |
239 | send_command PARAMS ((char *)); | |
240 | ||
241 | static void | |
242 | send PARAMS ((char *)); | |
243 | ||
244 | static void | |
245 | getmessage PARAMS ((char *, int)); | |
246 | ||
247 | static void | |
248 | es1800_mourn_inferior PARAMS ((void)); | |
249 | ||
250 | static void | |
251 | es1800_create_break_insn PARAMS ((char *, int)); | |
252 | ||
253 | static void | |
254 | es1800_init_break PARAMS ((char *, int)); | |
255 | ||
256 | /* Local variables */ | |
257 | ||
258 | #define LOG_FILE "es1800.log" | |
259 | #if defined (LOG_FILE) | |
260 | static FILE *log_file; | |
261 | #endif | |
262 | ||
263 | extern struct target_ops es1800_ops; /* Forward decl */ | |
264 | extern struct target_ops es1800_child_ops; /* Forward decl */ | |
265 | ||
266 | static int kiodebug; | |
267 | static int timeout = 100; | |
268 | static char *savename; /* Name of i/o device used */ | |
269 | static TERMINAL es1800_sg_save; /* Save stty state */ | |
270 | static int es1800_fc_save; /* Save fcntl state */ | |
271 | ||
272 | /* indicates that the emulator uses 32-bit data-adress (68020-mode) | |
273 | instead of 24-bit (68000 -mode) */ | |
274 | ||
275 | static int m68020; | |
276 | ||
277 | #define MODE (m68020 ? "M68020" : "M68000" ) | |
278 | #define ES1800_BREAK_VEC (0xf) | |
279 | ||
280 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that | |
281 | es1800_open knows that we don't have a file open when the program | |
282 | starts. */ | |
283 | ||
284 | static int es1800_desc = -1; | |
285 | ||
286 | #define PBUFSIZ 1000 | |
287 | #define HDRLEN sizeof("@.BAAAAAAAA=$VV\r") | |
288 | ||
289 | /* Maximum number of bytes to read/write at once. The value here | |
290 | is chosen to fill up a packet. */ | |
291 | ||
292 | #define MAXBUFBYTES ((PBUFSIZ-150)*16/75 ) | |
293 | ||
294 | static int es1800_break_vec = 0; | |
295 | static char es1800_break_insn[2]; | |
296 | static long es1800_break_address; | |
297 | static void (*old_sigint)(); /* Old signal-handler for sigint */ | |
298 | static jmp_buf interrupt; | |
299 | ||
300 | /* Local signalhandler to allow breaking tranfers or program run. | |
301 | Rely on global variables: old_sigint(), interrupt */ | |
302 | ||
303 | static void | |
304 | es1800_request_quit () | |
305 | { | |
306 | /* restore original signalhandler */ | |
307 | signal (SIGINT, old_sigint); | |
308 | longjmp (interrupt, 1); | |
309 | } | |
310 | ||
311 | ||
312 | /* Reset emulator. | |
313 | Sending reset character(octal 32) to emulator. | |
314 | quit - return to '(esgdb)' prompt or continue */ | |
315 | ||
316 | static void | |
317 | es1800_reset (quit) | |
318 | char *quit; | |
319 | { | |
320 | char buf[80]; | |
321 | ||
322 | if (quit) | |
323 | { | |
324 | printf ("\nResetting emulator... "); | |
325 | } | |
326 | strcpy (buf, "\032"); | |
327 | send (buf); | |
328 | expect_prompt (); | |
329 | if (quit) | |
330 | { | |
331 | error ("done\n"); | |
332 | } | |
333 | } | |
334 | ||
335 | ||
336 | /* Called when SIGALRM signal sent due to alarm() timeout. | |
337 | Rely on global variables: timeout */ | |
338 | ||
339 | #ifndef HAVE_TERMIO | |
340 | ||
341 | static void | |
342 | es1800_timer () | |
343 | { | |
344 | if (kiodebug) | |
345 | { | |
346 | printf ("es1800_timer called\n"); | |
347 | } | |
348 | alarm (timeout); | |
349 | } | |
350 | ||
351 | #endif /* HAVE_TERMIO */ | |
352 | ||
353 | ||
354 | /* Open a connection to a remote debugger and push the new target | |
355 | onto the stack. Check if the emulator is responding and find out | |
356 | what kind of processor the emulator is connected to. | |
357 | Initiate the breakpoint handling in the emulator. | |
358 | ||
359 | name - the filename used for communication (ex. '/dev/tta') | |
360 | from_tty - says whether to be verbose or not */ | |
361 | ||
362 | static void | |
363 | es1800_open (name, from_tty) | |
364 | char *name; | |
365 | int from_tty; | |
366 | { | |
367 | TERMINAL sg; | |
368 | char buf[PBUFSIZ]; | |
369 | char *p; | |
370 | int i, fcflag; | |
a94abe5b | 371 | char baudrate[1024]; |
91c87211 JK |
372 | |
373 | m68020 = 0; | |
374 | ||
375 | if (!name) /* no device name given in target command */ | |
376 | { | |
377 | error_no_arg ("serial port device name"); | |
378 | } | |
a94abe5b | 379 | sprintf(baudrate, "%d", sr_get_baud_rate()); |
91c87211 JK |
380 | |
381 | target_preopen (from_tty); | |
382 | es1800_close (0); | |
383 | ||
384 | /* open the device and configure it for communication */ | |
385 | ||
386 | #ifndef DEBUG_STDIN | |
387 | ||
388 | es1800_desc = open (name, O_RDWR); | |
389 | if (es1800_desc < 0) | |
390 | { | |
391 | perror_with_name (name); | |
392 | } | |
393 | savename = savestring (name, strlen (name)); | |
394 | ||
395 | if (ioctl (es1800_desc, TIOCGETP, &sg) == -1) | |
396 | { | |
397 | perror_with_name (name); | |
398 | } | |
399 | es1800_sg_save = sg; | |
400 | ||
401 | if ((fcflag = fcntl (es1800_desc, F_GETFL, 0)) == -1) | |
402 | { | |
403 | perror_with_name ("fcntl serial"); | |
404 | } | |
405 | es1800_fc_save = fcflag; | |
406 | ||
407 | fcflag = (fcflag & (FREAD | FWRITE)); /* mask out any funny stuff */ | |
408 | if (fcntl (es1800_desc, F_SETFL, fcflag) == -1) | |
409 | { | |
410 | perror_with_name ("fcntl serial"); | |
411 | } | |
412 | ||
413 | #ifdef HAVE_TERMIO | |
414 | sg.c_cc[VMIN] = 0; /* read with timeout. */ | |
415 | sg.c_cc[VTIME] = timeout * 10; | |
416 | sg.c_lflag &= ~(ICANON | ECHO); | |
417 | sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate); | |
418 | #else | |
419 | sg.sg_ispeed = damn_b (baudrate); | |
420 | sg.sg_ospeed = damn_b (baudrate); | |
421 | sg.sg_flags = CBREAK+TANDEM; | |
422 | #endif | |
423 | ||
424 | if ((ioctl (es1800_desc, TIOCSETP, &sg)) == -1) | |
425 | { | |
426 | perror ("es1800_open: error in ioctl"); | |
427 | } | |
428 | ||
429 | #endif /* DEBUG_STDIN */ | |
430 | ||
431 | push_target (&es1800_ops); /* Switch to using remote target now */ | |
432 | if (from_tty) | |
433 | { | |
434 | printf ("Remote ES1800 debugging using %s\n", name); | |
435 | } | |
436 | ||
437 | #ifndef HAVE_TERMIO | |
438 | ||
439 | #ifndef NO_SIGINTERRUPT | |
440 | ||
441 | /* Cause SIGALRM's to make reads fail with EINTR instead of resuming | |
442 | the read. */ | |
443 | ||
444 | if (siginterrupt (SIGALRM, 1) != 0) | |
445 | { | |
446 | perror ("es1800_open: error in siginterrupt"); | |
447 | } | |
448 | ||
449 | #endif /* NO_SIGINTERRUPT */ | |
450 | ||
451 | /* Set up read timeout timer. */ | |
452 | ||
453 | if ((void(*)()) signal (SIGALRM, es1800_timer) == (void(*)()) -1) | |
454 | { | |
455 | perror ("es1800_open: error in signal"); | |
456 | } | |
457 | ||
458 | #endif /* HAVE_TERMIO */ | |
459 | ||
460 | ||
461 | #if defined (LOG_FILE) | |
462 | ||
463 | log_file = fopen (LOG_FILE, "w"); | |
464 | if (log_file == NULL) | |
465 | { | |
466 | perror_with_name (LOG_FILE); | |
467 | } | |
468 | ||
469 | #endif /* LOG_FILE */ | |
470 | ||
471 | /* Hello? Are you there?, also check mode */ | |
472 | ||
473 | /* send_with_reply( "DB 0 TO 1", buf, sizeof(buf)); */ | |
474 | /* for (p = buf, i = 0; *p++ =='0';) */ /* count the number of zeros */ | |
475 | /* i++; */ | |
476 | ||
477 | send ("\032"); | |
478 | getmessage (buf, sizeof (buf)); /* send reset character */ | |
479 | ||
480 | if (from_tty) | |
481 | { | |
482 | printf ("Checking mode.... "); | |
483 | } | |
484 | /* m68020 = (i==8); */ /* if eight zeros then we are in m68020 mode */ | |
485 | ||
486 | /* What kind of processor am i talking to ?*/ | |
487 | p = buf; | |
488 | while (*p++ != '\n') {;} | |
489 | while (*p++ != '\n') {;} | |
490 | while (*p++ != '\n') {;} | |
491 | for (i = 0; i < 20; i++, p++) {;} | |
492 | m68020 = !strncmp (p, "68020", 5); | |
493 | if (from_tty) | |
494 | { | |
495 | printf ("You are in %s(%c%c%c%c%c)-mode\n", MODE, p[0], p[1], p[2], | |
496 | p[3], p[4]); | |
497 | } | |
498 | ||
499 | /* if no init_break statement is present in .gdb file we have to check | |
500 | whether to download a breakpoint routine or not */ | |
501 | ||
502 | #if 0 | |
503 | if ((es1800_break_vec == 0) || (verify_break (es1800_break_vec) != 0) | |
504 | && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? ")) | |
505 | { | |
506 | CORE_ADDR memaddress; | |
507 | printf ("Give the start address of the breakpoint routine: "); | |
508 | scanf ("%li", &memaddress); | |
509 | es1800_init_break ((es1800_break_vec ? es1800_break_vec : | |
510 | ES1800_BREAK_VEC), memaddress); | |
511 | } | |
512 | #endif | |
513 | ||
514 | } | |
515 | ||
516 | /* Close out all files and local state before this target loses control. | |
517 | quitting - are we quitting gdb now? */ | |
518 | ||
519 | static void | |
520 | es1800_close (quitting) | |
521 | int quitting; | |
522 | { | |
523 | if (es1800_desc >= 0) | |
524 | { | |
525 | printf ("\nClosing connection to emulator...\n"); | |
526 | ioctl (es1800_desc, TIOCSETP, &es1800_sg_save); | |
527 | fcntl (es1800_desc,F_SETFL, es1800_fc_save); | |
528 | close (es1800_desc); | |
529 | es1800_desc = -1; | |
530 | } | |
531 | if (savename != NULL) | |
532 | { | |
533 | free (savename); | |
534 | } | |
535 | savename = NULL; | |
536 | ||
537 | #if defined (LOG_FILE) | |
538 | ||
539 | if (log_file != NULL) | |
540 | { | |
541 | if (ferror (log_file)) | |
542 | { | |
543 | printf ("Error writing log file.\n"); | |
544 | } | |
545 | if (fclose (log_file) != 0) | |
546 | { | |
547 | printf ("Error closing log file.\n"); | |
548 | } | |
549 | log_file = NULL; | |
550 | } | |
551 | ||
552 | #endif /* LOG_FILE */ | |
553 | ||
554 | } | |
555 | ||
556 | /* damn_b() | |
557 | ||
558 | Translate baud rates from integers to damn B_codes. Unix should | |
559 | have outgrown this crap years ago, but even POSIX wouldn't buck it. | |
560 | rate - the baudrate given as a string | |
561 | return value: the baudrate as a B_code */ | |
562 | ||
563 | #ifndef B19200 | |
564 | # define B19200 EXTA | |
565 | #endif | |
566 | #ifndef B38400 | |
567 | # define B38400 EXTB | |
568 | #endif | |
569 | ||
570 | struct | |
571 | { | |
572 | char *rate, | |
573 | damn_b; | |
574 | } baudtab[] = { | |
575 | {"0", B0}, | |
576 | {"50", B50}, | |
577 | {"75", B75}, | |
578 | {"110", B110}, | |
579 | {"134", B134}, | |
580 | {"150", B150}, | |
581 | {"200", B200}, | |
582 | {"300", B300}, | |
583 | {"600", B600}, | |
584 | {"1200", B1200}, | |
585 | {"1800", B1800}, | |
586 | {"2400", B2400}, | |
587 | {"4800", B4800}, | |
588 | {"9600", B9600}, | |
589 | {"19200", B19200}, | |
590 | {"38400", B38400}, | |
591 | {0, -1}, | |
592 | }; | |
593 | ||
594 | static int | |
595 | damn_b (rate) | |
596 | char *rate; | |
597 | { | |
598 | int i; | |
599 | ||
600 | for (i = 0; baudtab[i].rate != 0; i++) | |
601 | { | |
602 | if (STREQ (rate, baudtab[i].rate)) | |
603 | { | |
604 | return (baudtab[i].damn_b); | |
605 | } | |
606 | } | |
607 | error ("Illegal baudrate"); | |
608 | } | |
609 | ||
610 | ||
611 | /* Attaches to a process on the target side | |
612 | proc_id - the id of the process to be attached. | |
613 | from_tty - says whether to be verbose or not */ | |
614 | ||
615 | static void | |
616 | es1800_attach (args, from_tty) | |
617 | char *args; | |
618 | int from_tty; | |
619 | { | |
620 | error ("Cannot attach to pid %s, this feature is not implemented yet.", | |
621 | args); | |
622 | } | |
623 | ||
624 | ||
625 | /* Takes a program previously attached to and detaches it. | |
626 | We better not have left any breakpoints | |
627 | in the program or it'll die when it hits one. | |
628 | Close the open connection to the remote debugger. | |
629 | Use this when you want to detach and do something else | |
630 | with your gdb. | |
631 | ||
632 | args - arguments given to the 'detach' command | |
633 | from_tty - says whether to be verbose or not */ | |
634 | ||
635 | static void | |
636 | es1800_detach (args, from_tty) | |
637 | char *args; | |
638 | int from_tty; | |
639 | { | |
640 | if (args) | |
641 | { | |
642 | error ("Argument given to \"detach\" when remotely debugging."); | |
643 | } | |
644 | pop_target (); | |
645 | if (from_tty) | |
646 | { | |
647 | printf ("Ending es1800 remote debugging.\n"); | |
648 | } | |
649 | } | |
650 | ||
651 | ||
652 | /* Tell the remote machine to resume. | |
653 | step - single-step or run free | |
654 | siggnal - the signal value to be given to the target (0 = no signal) */ | |
655 | ||
656 | static void | |
25286543 SG |
657 | es1800_resume (pid, step, siggnal) |
658 | int pid; | |
91c87211 | 659 | int step; |
67ac9759 | 660 | enum target_signal siggnal; |
91c87211 JK |
661 | { |
662 | char buf[PBUFSIZ]; | |
663 | ||
664 | if (siggnal) | |
665 | { | |
666 | error ("Can't send signals to a remote system."); | |
667 | } | |
668 | if (step) | |
669 | { | |
670 | strcpy (buf,"STP\r"); | |
671 | send (buf); | |
672 | } | |
673 | else | |
674 | { | |
675 | send_command ("RBK"); | |
676 | } | |
677 | } | |
678 | ||
679 | /* Wait until the remote machine stops, then return, | |
680 | storing status in STATUS just as `wait' would. | |
681 | status - */ | |
682 | ||
683 | static int | |
684 | es1800_wait (status) | |
67ac9759 | 685 | struct target_waitstatus *status; |
91c87211 JK |
686 | { |
687 | unsigned char buf[PBUFSIZ]; | |
688 | int old_timeout = timeout; | |
689 | ||
67ac9759 JK |
690 | status->kind = TARGET_WAITKIND_EXITED; |
691 | status->value.integer = 0; | |
692 | ||
91c87211 JK |
693 | timeout = 0; /* Don't time out -- user program is running. */ |
694 | if (!setjmp (interrupt)) | |
695 | { | |
696 | old_sigint = signal (SIGINT, es1800_request_quit); | |
697 | while (1) | |
698 | { | |
699 | getmessage (buf, sizeof(buf)); | |
700 | if (strncmp ( buf, "\r\n* BREAK *", 11) == 0) | |
701 | { | |
67ac9759 JK |
702 | status->kind = TARGET_WAITKIND_STOPPED; |
703 | status->value.sig = TARGET_SIGNAL_TRAP; | |
91c87211 JK |
704 | send_command ("STP"); /* Restore stack and PC and such */ |
705 | if (m68020) | |
706 | { | |
707 | send_command ("STP"); | |
708 | } | |
709 | break; | |
710 | } | |
711 | if (strncmp (buf, "STP\r\n ", 6) == 0) | |
712 | { | |
67ac9759 JK |
713 | status->kind = TARGET_WAITKIND_STOPPED; |
714 | status->value.sig = TARGET_SIGNAL_TRAP; | |
91c87211 JK |
715 | break; |
716 | } | |
717 | if (buf[strlen (buf) - 2] == 'R') | |
718 | { | |
719 | printf ("Unexpected emulator reply: \n%s\n", buf); | |
720 | } | |
721 | else | |
722 | { | |
723 | printf ("Unexpected stop: \n%s\n", buf); | |
67ac9759 JK |
724 | status->kind = TARGET_WAITKIND_STOPPED; |
725 | status->value.sig = TARGET_SIGNAL_QUIT; | |
91c87211 JK |
726 | break; |
727 | } | |
728 | } | |
729 | } | |
730 | else | |
731 | { | |
732 | fflush (stdin); | |
733 | printf ("\nStopping emulator..."); | |
734 | if (!setjmp (interrupt)) | |
735 | { | |
736 | old_sigint = signal (SIGINT, es1800_request_quit); | |
737 | send_command ("STP"); | |
738 | printf (" emulator stopped\n"); | |
67ac9759 JK |
739 | status->kind = TARGET_WAITKIND_STOPPED; |
740 | status->value.sig = TARGET_SIGNAL_INT; | |
91c87211 JK |
741 | } |
742 | else | |
743 | { | |
744 | fflush (stdin); | |
745 | es1800_reset ((char*) 1); | |
746 | } | |
747 | } | |
748 | signal (SIGINT, old_sigint); | |
749 | timeout = old_timeout; | |
750 | return (0); | |
751 | } | |
752 | ||
753 | ||
754 | /* Fetch register values from remote machine. | |
755 | regno - the register to be fetched (fetch all registers if -1) */ | |
756 | ||
757 | static void | |
758 | es1800_fetch_register (regno) | |
759 | int regno; | |
760 | { | |
761 | char buf[PBUFSIZ]; | |
762 | int k; | |
763 | int r; | |
764 | char *p; | |
765 | static char regtab[18][4] = | |
766 | { | |
767 | "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ", | |
768 | "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP", | |
769 | "SR ", "PC " | |
770 | }; | |
771 | ||
772 | if ((regno < 15) || (regno == 16) || (regno == 17)) | |
773 | { | |
774 | r = regno * 4; | |
775 | send_with_reply (regtab[regno], buf, sizeof (buf)); | |
776 | p = buf; | |
777 | for (k = 0; k < 4; k++) | |
778 | { | |
779 | if ((p[k*2 + 1] == 0) || (p[k*2 + 2] == 0)) | |
780 | { | |
781 | error ("Emulator reply is too short: %s", buf); | |
782 | } | |
783 | registers[r++] = (fromhex (p[k*2 + 1]) * 16) + fromhex (p[k*2 + 2]); | |
784 | } | |
785 | } | |
786 | else | |
787 | { | |
788 | es1800_fetch_registers (); | |
789 | } | |
790 | } | |
791 | ||
792 | /* Read the remote registers into REGISTERS. | |
793 | Always fetches all registers. */ | |
794 | ||
795 | static void | |
796 | es1800_fetch_registers () | |
797 | { | |
798 | char buf[PBUFSIZ]; | |
799 | char SR_buf[PBUFSIZ]; | |
800 | int i; | |
801 | int k; | |
802 | int r; | |
803 | char *p; | |
804 | ||
805 | send_with_reply ("DR", buf, sizeof (buf)); | |
806 | ||
807 | /* Reply is edited to a string that describes registers byte by byte, | |
808 | each byte encoded as two hex characters. */ | |
809 | ||
810 | p = buf; | |
811 | r = 0; | |
812 | ||
813 | /* parsing row one - D0-D7-registers */ | |
814 | ||
815 | while (*p++ != '\n') {;} | |
816 | for (i = 4; i < 70; i += (i == 39 ? 3 : 1)) | |
817 | { | |
818 | for (k = 0; k < 4; k++) | |
819 | { | |
820 | if (p[i+0] == 0 || p[i+1] == 0) | |
821 | { | |
822 | error ("Emulator reply is too short: %s", buf); | |
823 | } | |
824 | registers[r++] = (fromhex (p[i+0]) * 16) + fromhex (p[i+1]); | |
825 | i += 2; | |
826 | } | |
827 | } | |
828 | p += i; | |
829 | ||
830 | /* parsing row two - A0-A6-registers */ | |
831 | ||
832 | while (*p++ != '\n') {;} | |
833 | for (i = 4; i < 61; i += (i == 39 ? 3 : 1)) | |
834 | { | |
835 | for (k = 0; k < 4; k++) | |
836 | { | |
837 | if (p[i+0] == 0 || p[i+1] == 0) | |
838 | { | |
839 | error ("Emulator reply is too short: %s", buf); | |
840 | } | |
841 | registers[r++] = (fromhex (p[i+0])) * 16 + fromhex (p[i+1]); | |
842 | i += 2; | |
843 | } | |
844 | } | |
845 | p += i; | |
846 | ||
847 | while (*p++ != '\n') {;} | |
848 | ||
849 | /* fetch SSP-, SR- and PC-registers */ | |
850 | ||
851 | /* first - check STATUS-word and decide which stackpointer to use */ | |
852 | ||
853 | send_with_reply ("SR", SR_buf, sizeof (SR_buf)); | |
854 | p = SR_buf; | |
855 | p += 5; | |
856 | ||
857 | if (m68020) | |
858 | { | |
859 | if (*p == '3') /* use masterstackpointer MSP */ | |
860 | { | |
861 | send_with_reply ("MSP", buf, sizeof (buf)); | |
862 | } | |
863 | else if (*p == '2') /* use interruptstackpointer ISP */ | |
864 | { | |
865 | send_with_reply ("ISP", buf, sizeof (buf)); | |
866 | } | |
867 | else /* use userstackpointer USP */ | |
868 | { | |
869 | send_with_reply ("USP", buf, sizeof (buf)); | |
870 | } | |
871 | p = buf; | |
872 | for (k = 0; k<4; k++) | |
873 | { | |
874 | if (p[k*2+1] == 0 || p[k*2+2] == 0) | |
875 | { | |
876 | error ("Emulator reply is too short: %s", buf); | |
877 | } | |
878 | registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]); | |
879 | } | |
880 | ||
881 | p = SR_buf; | |
882 | for (k = 0; k < 4; k++) | |
883 | { | |
884 | if (p[k*2+1] == 0 || p[k*2+2] == 0) | |
885 | { | |
886 | error ("Emulator reply is too short: %s", buf); | |
887 | } | |
888 | registers[r++] = | |
889 | fromhex (SR_buf[k*2+1]) * 16 + fromhex (SR_buf[k*2+2]); | |
890 | } | |
891 | send_with_reply ("PC", buf, sizeof (buf)); | |
892 | p = buf; | |
893 | for (k = 0; k<4; k++) | |
894 | { | |
895 | if (p[k*2+1] == 0 || p[k*2+2] == 0) | |
896 | { | |
897 | error ("Emulator reply is too short: %s", buf); | |
898 | } | |
899 | registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]); | |
900 | } | |
901 | } | |
902 | else /* 68000-mode */ | |
903 | { | |
904 | if (*p == '2') /* use supervisorstackpointer SSP */ | |
905 | { | |
906 | send_with_reply ("SSP", buf, sizeof (buf)); | |
907 | } | |
908 | else /* use userstackpointer USP */ | |
909 | { | |
910 | send_with_reply ("USP", buf, sizeof (buf)); | |
911 | } | |
912 | ||
913 | /* fetch STACKPOINTER */ | |
914 | ||
915 | p = buf; | |
916 | for (k = 0; k < 4; k++) | |
917 | { | |
918 | if (p[k*2 + 1] == 0 || p[k*2 + 2] == 0) | |
919 | { | |
920 | error ("Emulator reply is too short: %s", buf); | |
921 | } | |
922 | registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]); | |
923 | } | |
924 | ||
925 | /* fetch STATUS */ | |
926 | ||
927 | p = SR_buf; | |
928 | for (k = 0; k < 4; k++) | |
929 | { | |
930 | if (p[k*2+1] == 0 || p[k*2+2] == 0) | |
931 | { | |
932 | error ("Emulator reply is too short: %s", buf); | |
933 | } | |
934 | registers[r++] = | |
935 | fromhex (SR_buf[k*2+1]) * 16 + fromhex (SR_buf[k*2+2]); | |
936 | } | |
937 | ||
938 | /* fetch PC */ | |
939 | ||
940 | send_with_reply ("PC", buf, sizeof (buf)); | |
941 | p = buf; | |
942 | for (k = 0; k < 4; k++) | |
943 | { | |
944 | if (p[k*2+1] == 0 || p[k*2+2] == 0) | |
945 | { | |
946 | error ("Emulator reply is too short: %s", buf); | |
947 | } | |
948 | registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]); | |
949 | } | |
950 | } | |
951 | } | |
952 | ||
953 | /* Store register value, located in REGISTER, on the target processor. | |
954 | regno - the register-number of the register to store | |
955 | (-1 means store them all) | |
956 | FIXME: Return errno value. */ | |
957 | ||
958 | static void | |
959 | es1800_store_register(regno) | |
960 | int regno; | |
961 | { | |
962 | ||
963 | static char regtab[18][4] = | |
964 | { | |
965 | "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ", | |
966 | "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP", | |
967 | "SR ", "PC " | |
968 | }; | |
969 | ||
970 | char buf[PBUFSIZ]; | |
971 | char SR_buf[PBUFSIZ]; | |
972 | char stack_pointer[4]; | |
973 | char *p; | |
974 | int i; | |
975 | int j; | |
976 | int k; | |
977 | unsigned char *r; | |
978 | ||
979 | r = (unsigned char *) registers; | |
980 | ||
981 | if (regno == -1) /* write all registers */ | |
982 | { | |
983 | j = 0; | |
984 | k = 18; | |
985 | } | |
986 | else /* write one register */ | |
987 | { | |
988 | j = regno; | |
989 | k = regno+1; | |
990 | r += regno * 4; | |
991 | } | |
992 | ||
993 | if ((regno == -1) || (regno == 15)) | |
994 | { | |
995 | /* fetch current status */ | |
996 | send_with_reply ("SR", SR_buf, sizeof (SR_buf)); | |
997 | p = SR_buf; | |
998 | p += 5; | |
999 | if (m68020) | |
1000 | { | |
1001 | if (*p == '3') /* use masterstackpointer MSP */ | |
1002 | { | |
1003 | strcpy (stack_pointer,"MSP"); | |
1004 | } | |
1005 | else | |
1006 | { | |
1007 | if (*p == '2') /* use interruptstackpointer ISP */ | |
1008 | { | |
1009 | strcpy (stack_pointer,"ISP"); | |
1010 | } | |
1011 | else | |
1012 | { | |
1013 | strcpy (stack_pointer,"USP"); /* use userstackpointer USP */ | |
1014 | } | |
1015 | } | |
1016 | } | |
1017 | else /* 68000-mode */ | |
1018 | { | |
1019 | if (*p == '2') /* use supervisorstackpointer SSP */ | |
1020 | { | |
1021 | strcpy (stack_pointer,"SSP"); | |
1022 | } | |
1023 | else | |
1024 | { | |
1025 | strcpy (stack_pointer,"USP");/* use userstackpointer USP */ | |
1026 | } | |
1027 | } | |
1028 | strcpy (regtab[15],stack_pointer); | |
1029 | } | |
1030 | ||
1031 | for (i = j; i<k; i++) | |
1032 | { | |
1033 | buf[0] = regtab[i][0]; | |
1034 | buf[1] = regtab[i][1]; | |
1035 | buf[2] = regtab[i][2]; | |
1036 | buf[3] = '='; | |
1037 | buf[4] = '$'; | |
1038 | buf[5] = tohex ((*r >> 4) & 0x0f); | |
1039 | buf[6] = tohex (*r++ & 0x0f); | |
1040 | buf[7] = tohex ((*r >> 4) & 0x0f); | |
1041 | buf[8] = tohex (*r++ & 0x0f); | |
1042 | buf[9] = tohex ((*r >> 4) & 0x0f); | |
1043 | buf[10] = tohex (*r++ & 0x0f); | |
1044 | buf[11] = tohex ((*r >> 4) & 0x0f); | |
1045 | buf[12] = tohex (*r++ & 0x0f); | |
1046 | buf[13] = 0; | |
1047 | ||
1048 | send_with_reply (buf, buf, sizeof (buf)); /* FIXME, reply not used? */ | |
1049 | } | |
1050 | } | |
1051 | ||
1052 | ||
1053 | /* Prepare to store registers. */ | |
1054 | ||
1055 | static void | |
1056 | es1800_prepare_to_store () | |
1057 | { | |
1058 | /* Do nothing, since we can store individual regs */ | |
1059 | } | |
1060 | ||
1061 | /* Convert hex digit A to a number. */ | |
1062 | ||
1063 | static int | |
1064 | fromhex (a) | |
1065 | int a; | |
1066 | { | |
1067 | if (a >= '0' && a <= '9') | |
1068 | { | |
1069 | return a - '0'; | |
1070 | } | |
1071 | else if (a >= 'a' && a <= 'f') | |
1072 | { | |
1073 | return a - 'a' + 10; | |
1074 | } | |
1075 | else if (a >= 'A' && a <= 'F') | |
1076 | { | |
1077 | return a - 'A' + 10; | |
1078 | } | |
1079 | else | |
1080 | { | |
1081 | error ("Reply contains invalid hex digit"); | |
1082 | } | |
1083 | return (-1); | |
1084 | } | |
1085 | ||
1086 | ||
1087 | /* Convert number NIB to a hex digit. */ | |
1088 | ||
1089 | static int | |
1090 | tohex (nib) | |
1091 | int nib; | |
1092 | { | |
1093 | if (nib < 10) | |
1094 | { | |
1095 | return ('0' + nib); | |
1096 | } | |
1097 | else | |
1098 | { | |
1099 | return ('A' + nib - 10); | |
1100 | } | |
1101 | } | |
1102 | ||
1103 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
1104 | to or from debugger address MYADDR. Write to inferior if WRITE is | |
1105 | nonzero. Returns length of data written or read; 0 for error. | |
1106 | ||
1107 | memaddr - the target's address | |
1108 | myaddr - gdb's address | |
1109 | len - number of bytes | |
1110 | write - write if != 0 otherwise read */ | |
1111 | ||
1112 | static int | |
1113 | es1800_xfer_inferior_memory (memaddr, myaddr, len, write, tops) | |
1114 | CORE_ADDR memaddr; | |
1115 | char *myaddr; | |
1116 | int len; | |
1117 | int write; | |
1118 | struct target_ops *tops; /* Unused */ | |
1119 | { | |
1120 | int origlen = len; | |
1121 | int xfersize; | |
1122 | ||
1123 | while (len > 0) | |
1124 | { | |
1125 | xfersize = len > MAXBUFBYTES ? MAXBUFBYTES : len; | |
1126 | if (write) | |
1127 | { | |
1128 | es1800_write_bytes (memaddr, myaddr, xfersize); | |
1129 | } | |
1130 | else | |
1131 | { | |
1132 | es1800_read_bytes (memaddr, myaddr, xfersize); | |
1133 | } | |
1134 | memaddr += xfersize; | |
1135 | myaddr += xfersize; | |
1136 | len -= xfersize; | |
1137 | } | |
1138 | return (origlen); /* no error possible */ | |
1139 | } | |
1140 | ||
1141 | ||
1142 | /* Write memory data directly to the emulator. | |
1143 | This does not inform the data cache; the data cache uses this. | |
1144 | MEMADDR is the address in the remote memory space. | |
1145 | MYADDR is the address of the buffer in our space. | |
1146 | LEN is the number of bytes. | |
1147 | ||
1148 | memaddr - the target's address | |
1149 | myaddr - gdb's address | |
1150 | len - number of bytes */ | |
1151 | ||
1152 | static void | |
1153 | es1800_write_bytes (memaddr, myaddr, len) | |
1154 | CORE_ADDR memaddr; | |
1155 | char *myaddr; | |
1156 | int len; | |
1157 | { | |
1158 | char buf[PBUFSIZ]; | |
1159 | int i; | |
1160 | char *p; | |
1161 | ||
1162 | p = myaddr; | |
1163 | for (i = 0; i < len; i++) | |
1164 | { | |
1165 | sprintf (buf, "@.B$%x=$%x", memaddr+i, (*p++) & 0xff); | |
1166 | send_with_reply (buf, buf, sizeof (buf)); /* FIXME send_command? */ | |
1167 | } | |
1168 | } | |
1169 | ||
1170 | ||
1171 | /* Read memory data directly from the emulator. | |
1172 | This does not use the data cache; the data cache uses this. | |
1173 | ||
1174 | memaddr - the target's address | |
1175 | myaddr - gdb's address | |
1176 | len - number of bytes */ | |
1177 | ||
1178 | static void | |
1179 | es1800_read_bytes (memaddr, myaddr, len) | |
1180 | CORE_ADDR memaddr; | |
1181 | char *myaddr; | |
1182 | int len; | |
1183 | { | |
1184 | static int DB_tab[16] = {8,11,14,17,20,23,26,29,34,37,40,43,46,49,52,55}; | |
1185 | char buf[PBUFSIZ]; | |
1186 | int i; | |
1187 | int low_addr; | |
1188 | char *p; | |
1189 | char *b; | |
1190 | ||
1191 | if (len > PBUFSIZ / 2 - 1) | |
1192 | { | |
1193 | abort (); | |
1194 | } | |
1195 | ||
1196 | if (len == 1) /* The emulator does not like expressions like: */ | |
1197 | { | |
1198 | len = 2; /* DB.B $20018 TO $20018 */ | |
1199 | } | |
1200 | ||
1201 | /* Reply describes registers byte by byte, each byte encoded as two hex | |
1202 | characters. */ | |
1203 | ||
1204 | sprintf (buf, "DB.B $%x TO $%x", memaddr, memaddr+len-1); | |
1205 | send_with_reply (buf, buf, sizeof (buf)); | |
1206 | b = buf; | |
1207 | low_addr = memaddr&0x0f; | |
1208 | for (i = low_addr; i < low_addr + len; i++) | |
1209 | { | |
1210 | if ((!(i % 16)) && i) | |
1211 | { /* if (i = 16,32,48) */ | |
1212 | while (*p++!='\n') {;} | |
1213 | b = p; | |
1214 | } | |
1215 | p = b + DB_tab[i%16] + (m68020 ? 2 : 0); | |
1216 | if (p[0] == 32 || p[1] == 32) | |
1217 | { | |
1218 | error ("Emulator reply is too short: %s", buf); | |
1219 | } | |
1220 | myaddr[i-low_addr] = fromhex (p[0]) * 16 + fromhex (p[1]); | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | /* Information about the current target */ | |
1225 | ||
1226 | static void | |
1227 | es1800_files_info (tops) | |
1228 | struct target_ops *tops; /* Unused */ | |
1229 | { | |
1230 | printf ("ES1800 Attached to %s at %d baud in %s mode\n", savename, 19200, | |
1231 | MODE); | |
1232 | } | |
1233 | ||
1234 | ||
1235 | /* We read the contents of the target location and stash it, | |
1236 | then overwrite it with a breakpoint instruction. | |
1237 | ||
1238 | addr - is the target location in the target machine. | |
1239 | contents_cache - is a pointer to memory allocated for saving the target contents. | |
1240 | It is guaranteed by the caller to be long enough to save sizeof | |
1241 | BREAKPOINT bytes. | |
1242 | ||
1243 | FIXME: This size is target_arch dependent and should be available in | |
1244 | the target_arch transfer vector, if we ever have one... */ | |
1245 | ||
1246 | static int | |
1247 | es1800_insert_breakpoint (addr, contents_cache) | |
1248 | CORE_ADDR addr; | |
1249 | char *contents_cache; | |
1250 | { | |
1251 | int val; | |
1252 | ||
1253 | val = target_read_memory (addr, contents_cache, sizeof (es1800_break_insn)); | |
1254 | ||
1255 | if (val == 0) | |
1256 | { | |
1257 | val = target_write_memory (addr, es1800_break_insn, | |
1258 | sizeof (es1800_break_insn)); | |
1259 | } | |
1260 | ||
1261 | return (val); | |
1262 | } | |
1263 | ||
1264 | ||
1265 | /* Write back the stashed instruction | |
1266 | ||
1267 | addr - is the target location in the target machine. | |
1268 | contents_cache - is a pointer to memory allocated for saving the target contents. | |
1269 | It is guaranteed by the caller to be long enough to save sizeof | |
1270 | BREAKPOINT bytes. */ | |
1271 | ||
1272 | static int | |
1273 | es1800_remove_breakpoint (addr, contents_cache) | |
1274 | CORE_ADDR addr; | |
1275 | char *contents_cache; | |
1276 | { | |
1277 | ||
1278 | return (target_write_memory (addr, contents_cache, | |
1279 | sizeof (es1800_break_insn))); | |
1280 | } | |
1281 | ||
1282 | /* create_break_insn () | |
1283 | Primitive datastructures containing the es1800 breakpoint instruction */ | |
1284 | ||
1285 | static void | |
1286 | es1800_create_break_insn (ins, vec) | |
1287 | char *ins; | |
1288 | int vec; | |
1289 | { | |
1290 | if (vec == 15) | |
1291 | { | |
1292 | ins[0] = 0x4e; | |
1293 | ins[1] = 0x4f; | |
1294 | } | |
1295 | } | |
1296 | ||
1297 | ||
1298 | /* verify_break () | |
1299 | Seach for breakpoint routine in emulator memory. | |
1300 | returns non-zero on failure | |
1301 | vec - trap vector used for breakpoints */ | |
1302 | ||
1303 | static int | |
1304 | verify_break (vec) | |
1305 | int vec; | |
1306 | { | |
1307 | CORE_ADDR memaddress; | |
1308 | char buf[8]; | |
1309 | char *instr = "NqNqNqNs"; /* breakpoint routine */ | |
1310 | int status; | |
1311 | ||
1312 | get_break_addr (vec, &memaddress); | |
1313 | ||
1314 | if (memaddress) | |
1315 | { | |
1316 | status = target_read_memory (memaddress, buf, 8); | |
1317 | if (status != 0) | |
1318 | { | |
1319 | memory_error (status, memaddress); | |
1320 | } | |
1321 | return (STRCMP (instr, buf)); | |
1322 | } | |
1323 | return (-1); | |
1324 | } | |
1325 | ||
1326 | ||
1327 | /* get_break_addr () | |
1328 | find address of breakpint routine | |
1329 | vec - trap vector used for breakpoints | |
1330 | addrp - store the address here */ | |
1331 | ||
1332 | static void | |
1333 | get_break_addr (vec, addrp) | |
1334 | int vec; | |
1335 | CORE_ADDR *addrp; | |
1336 | { | |
1337 | CORE_ADDR memaddress = 0; | |
1338 | int status; | |
1339 | int k; | |
1340 | char buf[PBUFSIZ]; | |
1341 | char base_addr[4]; | |
1342 | char *p; | |
1343 | ||
1344 | if (m68020) | |
1345 | { | |
1346 | send_with_reply ("VBR ", buf, sizeof (buf)); | |
1347 | p = buf; | |
1348 | for (k = 0; k < 4; k++) | |
1349 | { | |
1350 | if ((p[k*2 + 1] == 0) || (p[k*2 + 2] == 0)) | |
1351 | { | |
1352 | error ("Emulator reply is too short: %s", buf); | |
1353 | } | |
1354 | base_addr[k] = (fromhex (p[k*2 + 1]) * 16) + fromhex (p[k*2 + 2]); | |
1355 | } | |
1356 | /* base addr of exception vector table */ | |
1357 | memaddress = *((CORE_ADDR *) base_addr); | |
1358 | } | |
1359 | ||
1360 | memaddress += (vec + 32) * 4; /* address of trap vector */ | |
1361 | status = target_read_memory (memaddress, (char *) addrp, 4); | |
1362 | if (status != 0) | |
1363 | { | |
1364 | memory_error (status, memaddress); | |
1365 | } | |
1366 | } | |
1367 | ||
1368 | ||
1369 | /* Kill an inferior process */ | |
1370 | ||
1371 | static void | |
1372 | es1800_kill () | |
1373 | { | |
1374 | if (inferior_pid != 0) | |
1375 | { | |
1376 | inferior_pid = 0; | |
1377 | es1800_mourn_inferior (); | |
1378 | } | |
1379 | } | |
1380 | ||
1381 | ||
1382 | /* Load a file to the ES1800 emulator. | |
1383 | Converts the file from a.out format into Extended Tekhex format | |
1384 | before the file is loaded. | |
1385 | Also loads the trap routine, and sets the ES1800 breakpoint on it | |
1386 | filename - the a.out to be loaded | |
1387 | from_tty - says whether to be verbose or not | |
1388 | FIXME Uses emulator overlay memory for trap routine */ | |
1389 | ||
1390 | static void | |
1391 | es1800_load (filename, from_tty) | |
1392 | char *filename; | |
1393 | int from_tty; | |
1394 | { | |
1395 | ||
1396 | FILE *instream; | |
1397 | char loadname[15]; | |
1398 | char buf[160]; | |
1399 | struct cleanup *old_chain; | |
1400 | int es1800_load_format = 5; | |
1401 | ||
1402 | if (es1800_desc < 0) | |
1403 | { | |
1404 | printf ("No emulator attached, type emulator-command first\n"); | |
1405 | return; | |
1406 | } | |
1407 | ||
1408 | filename = tilde_expand (filename); | |
1409 | make_cleanup (free, filename); | |
1410 | ||
1411 | switch (es1800_load_format) | |
1412 | { | |
1413 | case 2: /* Extended Tekhex */ | |
1414 | if (from_tty) | |
1415 | { | |
1416 | printf ("Converting \"%s\" to Extended Tekhex Format\n", filename); | |
1417 | } | |
1418 | sprintf (buf, "tekhex %s", filename); | |
1419 | system (buf); | |
1420 | sprintf (loadname, "out.hex"); | |
1421 | break; | |
1422 | ||
1423 | case 5: /* Motorola S-rec */ | |
1424 | if (from_tty) | |
1425 | { | |
1426 | printf ("Converting \"%s\" to Motorola S-record format\n", | |
1427 | filename); | |
1428 | } | |
1429 | /* in the future the source code in copy (part of binutils-1.93) will | |
1430 | be included in this file */ | |
1431 | sprintf (buf, | |
1432 | "copy -s \"a.out-sunos-big\" -d \"srec\" %s /tmp/out.hex", | |
1433 | filename); | |
1434 | system (buf); | |
1435 | sprintf (loadname, "/tmp/out.hex"); | |
1436 | break; | |
1437 | ||
1438 | default: | |
1439 | error ("Downloading format not defined\n"); | |
1440 | } | |
1441 | ||
cf3e377e | 1442 | breakpoint_init_inferior (); |
91c87211 JK |
1443 | inferior_pid = 0; |
1444 | if (from_tty) | |
1445 | { | |
1446 | printf ("Downloading \"%s\" to the ES 1800\n",filename); | |
1447 | } | |
1448 | if ((instream = fopen (loadname, "r")) == NULL) | |
1449 | { | |
1450 | perror_with_name ("fopen:"); | |
1451 | } | |
1452 | ||
1453 | old_chain = make_cleanup (fclose, instream); | |
1454 | immediate_quit++; | |
1455 | ||
1456 | es1800_reset (0); | |
1457 | ||
1458 | download (instream, from_tty, es1800_load_format); | |
1459 | ||
1460 | /* if breakpoint routine is not present anymore we have to check | |
1461 | whether to download a new breakpoint routine or not */ | |
1462 | ||
1463 | if ((verify_break (es1800_break_vec) != 0) | |
1464 | && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? ")) | |
1465 | { | |
1466 | char buf[128]; | |
1467 | printf ("Using break vector 0x%x\n", es1800_break_vec); | |
1468 | sprintf (buf, "0x%x ", es1800_break_vec); | |
1469 | printf ("Give the start address of the breakpoint routine: "); | |
1470 | fgets (buf + strlen (buf), sizeof (buf) - strlen (buf), stdin); | |
1471 | es1800_init_break (buf, 0); | |
1472 | } | |
1473 | ||
1474 | do_cleanups (old_chain); | |
1475 | expect_prompt (); | |
1476 | readchar (); /* FIXME I am getting a ^G = 7 after the prompt */ | |
1477 | printf ("\n"); | |
1478 | ||
1479 | if (fclose (instream) == EOF) | |
1480 | { | |
1481 | ; | |
1482 | } | |
1483 | ||
1484 | if (es1800_load_format != 2) | |
1485 | { | |
1486 | sprintf (buf, "/usr/bin/rm %s", loadname); | |
1487 | system (buf); | |
1488 | } | |
1489 | ||
1490 | symbol_file_command (filename, from_tty); /* reading symbol table */ | |
1491 | immediate_quit--; | |
1492 | } | |
1493 | ||
1494 | #if 0 | |
1495 | ||
1496 | #define NUMCPYBYTES 20 | |
1497 | ||
1498 | static void | |
1499 | bfd_copy (from_bfd, to_bfd) | |
1500 | bfd *from_bfd; | |
1501 | bfd *to_bfd; | |
1502 | { | |
1503 | asection *p, *new; | |
1504 | int i; | |
1505 | char buf[NUMCPYBYTES]; | |
1506 | ||
1507 | for (p = from_bfd->sections; p != NULL; p = p->next) | |
1508 | { | |
1509 | printf (" Copying section %s. Size = %x.\n", p->name, p->_cooked_size); | |
1510 | printf (" vma = %x, offset = %x, output_sec = %x\n", | |
1511 | p->vma, p->output_offset, p->output_section); | |
1512 | new = bfd_make_section (to_bfd, p->name); | |
1513 | if (p->_cooked_size && | |
1514 | !bfd_set_section_size (to_bfd, new, p->_cooked_size)) | |
1515 | { | |
1516 | error ("Wrong BFD size!\n"); | |
1517 | } | |
1518 | if (!bfd_set_section_flags (to_bfd, new, p->flags)) | |
1519 | { | |
1520 | error ("bfd_set_section_flags"); | |
1521 | } | |
1522 | new->vma = p->vma; | |
1523 | ||
1524 | for (i = 0; (i + NUMCPYBYTES) < p->_cooked_size ; i += NUMCPYBYTES) | |
1525 | { | |
1526 | if (!bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i, | |
1527 | (bfd_size_type) NUMCPYBYTES)) | |
1528 | { | |
1529 | error ("bfd_get_section_contents\n"); | |
1530 | } | |
1531 | if (!bfd_set_section_contents (to_bfd, new, (PTR) buf, (file_ptr) i, | |
1532 | (bfd_size_type) NUMCPYBYTES)) | |
1533 | { | |
1534 | error ("bfd_set_section_contents\n"); | |
1535 | } | |
1536 | } | |
1537 | bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i, | |
1538 | (bfd_size_type) (p->_cooked_size - i)); | |
1539 | bfd_set_section_contents (to_bfd, new, (PTR) buf,(file_ptr) i, | |
1540 | (bfd_size_type) (p->_cooked_size - i)); | |
1541 | } | |
1542 | } | |
1543 | ||
1544 | #endif | |
1545 | ||
1546 | /* Start an process on the es1800 and set inferior_pid to the new | |
1547 | process' pid. | |
1548 | execfile - the file to run | |
1549 | args - arguments passed to the program | |
1550 | env - the environment vector to pass */ | |
1551 | ||
1552 | static void | |
1553 | es1800_create_inferior (execfile, args, env) | |
1554 | char *execfile; | |
1555 | char *args; | |
1556 | char **env; | |
1557 | { | |
1558 | int entry_pt; | |
1559 | int pid; | |
1560 | #if 0 | |
1561 | struct expression *expr; | |
1562 | register struct cleanup *old_chain = 0; | |
1563 | register value val; | |
1564 | #endif | |
1565 | ||
1566 | if (args && *args) | |
1567 | { | |
1568 | error ("Can't pass arguments to remote ES1800 process"); | |
1569 | } | |
1570 | ||
1571 | #if 0 | |
1572 | if (query ("Use 'start' as entry point? ")) | |
1573 | { | |
1574 | expr = parse_c_expression ("start"); | |
1575 | old_chain = make_cleanup (free_current_contents, &expr); | |
1576 | val = evaluate_expression (expr); | |
1577 | entry_pt = (val->location).address; | |
1578 | } | |
1579 | else | |
1580 | { | |
1581 | printf ("Enter the program's entry point (in hexadecimal): "); | |
1582 | scanf ("%x", &entry_pt); | |
1583 | } | |
1584 | #endif | |
1585 | ||
1586 | if (execfile == 0 || exec_bfd == 0) | |
1587 | { | |
1588 | error ("No exec file specified"); | |
1589 | } | |
1590 | ||
1591 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
1592 | ||
1593 | pid = 42; | |
1594 | ||
1595 | /* Now that we have a child process, make it our target. */ | |
1596 | ||
1597 | push_target (&es1800_child_ops); | |
1598 | ||
1599 | /* The "process" (board) is already stopped awaiting our commands, and | |
1600 | the program is already downloaded. We just set its PC and go. */ | |
1601 | ||
1602 | inferior_pid = pid; /* Needed for wait_for_inferior below */ | |
1603 | ||
1604 | clear_proceed_status (); | |
1605 | ||
1606 | /* Tell wait_for_inferior that we've started a new process. */ | |
1607 | ||
1608 | init_wait_for_inferior (); | |
1609 | ||
1610 | /* Set up the "saved terminal modes" of the inferior | |
1611 | based on what modes we are starting it with. */ | |
1612 | ||
1613 | target_terminal_init (); | |
1614 | ||
1615 | /* Install inferior's terminal modes. */ | |
1616 | ||
1617 | target_terminal_inferior (); | |
1618 | ||
1619 | /* remote_start (args); */ | |
1620 | /* trap_expected = 0; */ | |
1621 | /* insert_step_breakpoint (); FIXME, do we need this? */ | |
1622 | ||
45dc9be3 JK |
1623 | /* Let 'er rip... */ |
1624 | proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0); | |
91c87211 JK |
1625 | |
1626 | } | |
1627 | ||
1628 | ||
1629 | /* The process has died, clean up. */ | |
1630 | ||
1631 | static void | |
1632 | es1800_mourn_inferior () | |
1633 | { | |
1634 | remove_breakpoints (); | |
1635 | unpush_target (&es1800_child_ops); | |
1636 | generic_mourn_inferior (); /* Do all the proper things now */ | |
1637 | } | |
1638 | ||
1639 | /* ES1800-protocol specific routines */ | |
1640 | ||
1641 | /* Keep discarding input from the remote system, until STRING is found. | |
1642 | Let the user break out immediately. | |
1643 | string - the string to expect | |
1644 | nowait - break out if string not the emulator's first respond otherwise | |
1645 | read until string is found (== 0) */ | |
1646 | ||
1647 | static void | |
1648 | expect (string, nowait) | |
1649 | char *string; | |
1650 | int nowait; | |
1651 | { | |
1652 | char c; | |
1653 | char *p = string; | |
1654 | ||
1655 | immediate_quit++; | |
1656 | while (1) | |
1657 | { | |
1658 | c = readchar (); | |
1659 | if (isalpha (c)) | |
1660 | { | |
1661 | c = toupper (c); | |
1662 | } | |
1663 | if (c == toupper (*p)) | |
1664 | { | |
1665 | p++; | |
1666 | if (*p == '\0') | |
1667 | { | |
1668 | immediate_quit--; | |
1669 | return; | |
1670 | } | |
1671 | } | |
1672 | else if (!nowait) | |
1673 | { | |
1674 | p = string; | |
1675 | } | |
1676 | else | |
1677 | { | |
1678 | printf ("\'%s\' expected\n" , string); | |
1679 | printf ("char %d is %d", p - string, c); | |
1680 | error ("\n" ); | |
1681 | } | |
1682 | } | |
1683 | } | |
1684 | ||
1685 | /* Keep discarding input until we see the prompt. */ | |
1686 | ||
1687 | static void | |
1688 | expect_prompt () | |
1689 | { | |
1690 | expect (">", 0); | |
1691 | } | |
1692 | ||
1693 | ||
1694 | /* Read one character */ | |
1695 | ||
1696 | #ifdef DEBUG_STDIN | |
1697 | ||
1698 | /* read from stdin */ | |
1699 | ||
1700 | static int | |
1701 | readchar () | |
1702 | { | |
1703 | char buf[1]; | |
1704 | ||
1705 | buf[0] = '\0'; | |
1706 | printf ("readchar, give one character\n"); | |
1707 | read (0, buf, 1); | |
1708 | ||
1709 | #if defined (LOG_FILE) | |
1710 | putc (buf[0] & 0x7f, log_file); | |
1711 | #endif | |
1712 | ||
1713 | return (buf[0] & 0x7f); | |
1714 | } | |
1715 | ||
1716 | #else /* !DEBUG_STDIN */ | |
1717 | ||
1718 | /* Read a character from the remote system, doing all the fancy | |
1719 | timeout stuff. */ | |
1720 | ||
1721 | static int | |
1722 | readchar () | |
1723 | { | |
1724 | char buf[1]; | |
1725 | ||
1726 | buf[0] = '\0'; | |
1727 | ||
1728 | #ifdef HAVE_TERMIO | |
1729 | ||
1730 | /* termio does the timeout for us. */ | |
1731 | read (es1800_desc, buf, 1); | |
1732 | ||
1733 | #else | |
1734 | ||
1735 | alarm (timeout); | |
1736 | while (read (es1800_desc, buf, 1) != 1) | |
1737 | { | |
1738 | if (errno == EINTR) | |
1739 | { | |
1740 | error ("Timeout reading from remote system."); | |
1741 | } | |
1742 | else if (errno != EWOULDBLOCK) | |
1743 | { | |
1744 | perror_with_name ("remote read"); | |
1745 | } | |
1746 | } | |
1747 | alarm (0); | |
1748 | #endif | |
1749 | ||
1750 | #if defined (LOG_FILE) | |
1751 | putc (buf[0] & 0x7f, log_file); | |
1752 | fflush (log_file); | |
1753 | #endif | |
1754 | ||
1755 | return (buf[0] & 0x7f); | |
1756 | } | |
1757 | ||
1758 | #endif /* DEBUG_STDIN */ | |
1759 | ||
1760 | ||
1761 | /* Send a command to the emulator and save the reply. | |
1762 | Report an error if we get an error reply. | |
1763 | string - the es1800 command | |
1764 | buf - containing the emulator reply on return | |
1765 | len - size of buf */ | |
1766 | ||
1767 | static void | |
1768 | send_with_reply (string, buf, len) | |
1769 | char *string, *buf; | |
1770 | int len; | |
1771 | { | |
1772 | send (string); | |
1773 | write (es1800_desc, "\r", 1); | |
1774 | ||
1775 | #ifndef DEBUG_STDIN | |
1776 | expect (string, 1); | |
1777 | expect ("\r\n", 0); | |
1778 | #endif | |
1779 | ||
1780 | getmessage (buf, len); | |
1781 | } | |
1782 | ||
1783 | ||
1784 | /* Send the command in STR to the emulator adding \r. check | |
1785 | the echo for consistency. | |
1786 | string - the es1800 command */ | |
1787 | ||
1788 | static void | |
1789 | send_command (string) | |
1790 | char *string; | |
1791 | { | |
1792 | send (string); | |
1793 | write (es1800_desc, "\r", 1); | |
1794 | ||
1795 | #ifndef DEBUG_STDIN | |
1796 | expect (string, 0); | |
1797 | expect_prompt (); | |
1798 | #endif | |
1799 | ||
1800 | } | |
1801 | ||
1802 | /* Send a string | |
1803 | string - the es1800 command */ | |
1804 | ||
1805 | static void | |
1806 | send (string) | |
1807 | char *string; | |
1808 | { | |
1809 | if (kiodebug) | |
1810 | { | |
1811 | fprintf (stderr, "Sending: %s\n", string); | |
1812 | } | |
1813 | write (es1800_desc, string, strlen (string)); | |
1814 | } | |
1815 | ||
1816 | ||
1817 | /* Read a message from the emulator and store it in BUF. | |
1818 | buf - containing the emulator reply on return | |
1819 | len - size of buf */ | |
1820 | ||
1821 | static void | |
1822 | getmessage (buf, len) | |
1823 | char *buf; | |
1824 | int len; | |
1825 | { | |
1826 | char *bp; | |
1827 | int c; | |
1828 | int prompt_found = 0; | |
1829 | extern kiodebug; | |
1830 | ||
1831 | #if defined (LOG_FILE) | |
1832 | /* This is a convenient place to do this. The idea is to do it often | |
1833 | enough that we never lose much data if we terminate abnormally. */ | |
1834 | fflush (log_file); | |
1835 | #endif | |
1836 | ||
1837 | bp = buf; | |
1838 | c = readchar (); | |
1839 | do | |
1840 | { | |
1841 | if (c) | |
1842 | { | |
1843 | if (len-- < 2) /* char and terminaling NULL */ | |
1844 | { | |
1845 | error ("input buffer overrun\n"); | |
1846 | } | |
1847 | *bp++ = c; | |
1848 | } | |
1849 | c = readchar (); | |
1850 | if ((c == '>') && (*(bp - 1) == ' ')) | |
1851 | { | |
1852 | prompt_found = 1; | |
1853 | } | |
1854 | } | |
1855 | while (!prompt_found); | |
1856 | *bp = 0; | |
1857 | ||
1858 | if (kiodebug) | |
1859 | { | |
1860 | fprintf (stderr,"message received :%s\n", buf); | |
1861 | } | |
1862 | } | |
1863 | ||
1864 | static void | |
1865 | download (instream, from_tty, format) | |
1866 | FILE *instream; | |
1867 | int from_tty; | |
1868 | int format; | |
1869 | { | |
1870 | char c; | |
1871 | char buf[160]; | |
1872 | int i = 0; | |
1873 | ||
1874 | send_command ("SET #2,$1A"); /* reset char = ^Z */ | |
1875 | send_command ("SET #3,$11,$13"); /* XON XOFF */ | |
1876 | if (format == 2) | |
1877 | { | |
1878 | send_command ("SET #26,#2"); | |
1879 | } | |
1880 | else | |
1881 | { | |
1882 | send_command ("SET #26,#5"); /* Format=Extended Tekhex */ | |
1883 | } | |
1884 | send_command ("DFB = $10"); | |
1885 | send_command ("PUR"); | |
1886 | send_command ("CES"); | |
1887 | send ("DNL\r"); | |
1888 | expect ("DNL", 1); | |
1889 | if (from_tty) | |
1890 | { | |
1891 | printf (" 0 records loaded...\r"); | |
1892 | } | |
1893 | while (fgets (buf, 160, instream)) | |
1894 | { | |
1895 | send (buf); | |
1896 | if (from_tty) | |
1897 | { | |
1898 | printf ("%5d\b\b\b\b\b",++i); | |
1899 | fflush (stdout); | |
1900 | } | |
1901 | if ((c = readchar ()) != 006) | |
1902 | { | |
1903 | error ("expected ACK"); | |
1904 | } | |
1905 | } | |
1906 | if (from_tty) | |
1907 | { | |
1908 | printf ("- All"); | |
1909 | } | |
1910 | } | |
1911 | ||
1912 | /* Additional commands */ | |
1913 | ||
1914 | /* Talk directly to the emulator | |
1915 | FIXME, uses busy wait, and is SUNOS (or at least BSD) specific */ | |
1916 | ||
1917 | /*ARGSUSED*/ | |
1918 | static void | |
1919 | es1800_transparent (args, from_tty) | |
1920 | char *args; | |
1921 | int from_tty; | |
1922 | { | |
1923 | int console; | |
1924 | struct sgttyb modebl; | |
1925 | int fcflag; | |
1926 | int cc; | |
1927 | struct sgttyb console_mode_save; | |
1928 | int console_fc_save; | |
1929 | int es1800_fc_save; | |
1930 | int inputcnt = 80; | |
1931 | char inputbuf[80]; | |
1932 | int consolecnt = 0; | |
1933 | char consolebuf[80]; | |
1934 | int es1800_cnt = 0; | |
1935 | char es1800_buf[80]; | |
1936 | int i; | |
1937 | ||
1938 | dont_repeat (); | |
1939 | if (es1800_desc < 0) | |
1940 | { | |
1941 | printf ("No emulator attached, type emulator-command first\n"); | |
1942 | return; | |
1943 | } | |
1944 | ||
1945 | printf ("\n"); | |
1946 | printf ("You are now communicating directly with the ES 1800 emulator.\n"); | |
1947 | printf ("To leave this mode (transparent mode), press ^E.\n"); | |
1948 | printf ("\n"); | |
1949 | printf (" >"); | |
1950 | fflush (stdout); | |
1951 | ||
1952 | if ((console = open ("/dev/tty", O_RDWR)) == -1) | |
1953 | { | |
1954 | perror_with_name ("/dev/tty:"); | |
1955 | } | |
1956 | ||
1957 | if ((fcflag = fcntl (console, F_GETFL, 0)) == -1) | |
1958 | { | |
1959 | perror_with_name ("fcntl console"); | |
1960 | } | |
1961 | ||
1962 | console_fc_save = fcflag; | |
1963 | fcflag = fcflag | FNDELAY; | |
1964 | ||
1965 | if (fcntl (console, F_SETFL, fcflag) == -1) | |
1966 | { | |
1967 | perror_with_name ("fcntl console"); | |
1968 | } | |
1969 | ||
1970 | if (ioctl (console, TIOCGETP, &modebl)) | |
1971 | { | |
1972 | perror_with_name ("ioctl console"); | |
1973 | } | |
1974 | ||
1975 | console_mode_save = modebl; | |
1976 | modebl.sg_flags = RAW; | |
1977 | ||
1978 | if (ioctl (console, TIOCSETP, &modebl)) | |
1979 | { | |
1980 | perror_with_name ("ioctl console"); | |
1981 | } | |
1982 | ||
1983 | if ((fcflag = fcntl (es1800_desc, F_GETFL, 0)) == -1) | |
1984 | { | |
1985 | perror_with_name ("fcntl serial"); | |
1986 | } | |
1987 | ||
1988 | es1800_fc_save = fcflag; | |
1989 | fcflag = fcflag | FNDELAY; | |
1990 | ||
1991 | if (fcntl (es1800_desc, F_SETFL, fcflag) == -1) | |
1992 | { | |
1993 | perror_with_name ("fcntl serial"); | |
1994 | } | |
1995 | ||
1996 | while (1) | |
1997 | { | |
1998 | cc = read (console, inputbuf, inputcnt); | |
1999 | if (cc != -1) | |
2000 | { | |
2001 | if ((*inputbuf & 0x7f) == 0x05) | |
2002 | { | |
2003 | break; | |
2004 | } | |
2005 | for (i = 0; i < cc; ) | |
2006 | { | |
2007 | es1800_buf[es1800_cnt++] = inputbuf[i++]; | |
2008 | } | |
2009 | if ((cc = write (es1800_desc, es1800_buf, es1800_cnt)) == -1) | |
2010 | { | |
2011 | perror_with_name ("FEL! read:"); | |
2012 | } | |
2013 | es1800_cnt -= cc; | |
2014 | if (es1800_cnt && cc) | |
2015 | { | |
2016 | for (i = 0; i < es1800_cnt; i++) | |
2017 | { | |
2018 | es1800_buf[i] = es1800_buf[cc+i]; | |
2019 | } | |
2020 | } | |
2021 | } | |
2022 | else if (errno != EWOULDBLOCK) | |
2023 | { | |
2024 | perror_with_name ("FEL! read:"); | |
2025 | } | |
2026 | ||
2027 | cc = read (es1800_desc,inputbuf,inputcnt); | |
2028 | if (cc != -1) | |
2029 | { | |
2030 | for (i = 0; i < cc; ) | |
2031 | { | |
2032 | consolebuf[consolecnt++] = inputbuf[i++]; | |
2033 | } | |
2034 | if ((cc = write (console,consolebuf,consolecnt)) == -1) | |
2035 | { | |
2036 | perror_with_name ("FEL! write:"); | |
2037 | } | |
2038 | consolecnt -= cc; | |
2039 | if (consolecnt && cc) | |
2040 | { | |
2041 | for (i = 0; i < consolecnt; i++) | |
2042 | { | |
2043 | consolebuf[i] = consolebuf[cc+i]; | |
2044 | } | |
2045 | } | |
2046 | } | |
2047 | else if (errno != EWOULDBLOCK) | |
2048 | { | |
2049 | perror_with_name ("FEL! read:"); | |
2050 | } | |
2051 | } | |
2052 | ||
2053 | console_fc_save = console_fc_save & !FNDELAY; | |
2054 | if (fcntl (console, F_SETFL, console_fc_save) == -1) | |
2055 | { | |
2056 | perror_with_name ("FEL! fcntl"); | |
2057 | } | |
2058 | ||
2059 | if (ioctl (console, TIOCSETP, &console_mode_save)) | |
2060 | { | |
2061 | perror_with_name ("FEL! ioctl"); | |
2062 | } | |
2063 | ||
2064 | close (console); | |
2065 | ||
2066 | if (fcntl (es1800_desc, F_SETFL, es1800_fc_save) == -1) | |
2067 | { | |
2068 | perror_with_name ("FEL! fcntl"); | |
2069 | } | |
2070 | ||
2071 | printf ("\n"); | |
2072 | ||
2073 | } | |
2074 | ||
2075 | static void | |
2076 | es1800_init_break (args, from_tty) | |
2077 | char *args; | |
2078 | int from_tty; | |
2079 | { | |
2080 | CORE_ADDR memaddress = 0; | |
2081 | char buf[PBUFSIZ]; | |
2082 | char base_addr[4]; | |
2083 | char *space_index; | |
2084 | char *p; | |
2085 | int k; | |
2086 | ||
2087 | if (args == NULL) | |
2088 | { | |
2089 | error_no_arg ("a trap vector"); | |
2090 | } | |
2091 | ||
2092 | if (!(space_index = strchr (args, ' '))) | |
2093 | { | |
2094 | error ("Two arguments needed (trap vector and address of break routine).\n"); | |
2095 | } | |
2096 | ||
2097 | *space_index = '\0'; | |
2098 | ||
2099 | es1800_break_vec = strtol (args, (char **) NULL, 0); | |
2100 | es1800_break_address = parse_and_eval_address (space_index + 1); | |
2101 | ||
2102 | es1800_create_break_insn (es1800_break_insn, es1800_break_vec); | |
2103 | ||
2104 | if (m68020) | |
2105 | { | |
2106 | send_with_reply ("VBR ", buf, sizeof (buf)); | |
2107 | p = buf; | |
2108 | for (k = 0; k < 4; k++) | |
2109 | { | |
2110 | if ((p[k*2 + 1] == 0) || (p[k*2 + 2] == 0)) | |
2111 | { | |
2112 | error ("Emulator reply is too short: %s", buf); | |
2113 | } | |
2114 | base_addr[k] = (fromhex (p[k*2 + 1]) * 16) + fromhex (p[k*2 + 2]); | |
2115 | } | |
2116 | /* base addr of exception vector table */ | |
2117 | memaddress = *((CORE_ADDR *) base_addr); | |
2118 | } | |
2119 | ||
2120 | memaddress += (es1800_break_vec + 32) * 4; /* address of trap vector */ | |
2121 | ||
2122 | sprintf (buf, "@.L%lx=$%lx", memaddress, es1800_break_address); | |
2123 | send_command (buf); /* set the address of the break routine in the */ | |
2124 | /* trap vector */ | |
2125 | ||
2126 | sprintf (buf, "@.L%lx=$4E714E71", es1800_break_address); /* NOP; NOP */ | |
2127 | send_command (buf); | |
2128 | sprintf (buf, "@.L%lx=$4E714E73", es1800_break_address + 4); /* NOP; RTE */ | |
2129 | send_command (buf); | |
2130 | ||
2131 | sprintf (buf, "AC2=$%lx", es1800_break_address + 4); | |
2132 | /* breakpoint at es1800-break_address */ | |
2133 | send_command (buf); | |
2134 | send_command ("WHEN AC2 THEN BRK"); /* ie in exception routine */ | |
2135 | ||
2136 | if (from_tty) | |
2137 | { | |
2138 | printf ("Breakpoint (trap $%x) routine at address: %lx\n", | |
2139 | es1800_break_vec, es1800_break_address); | |
2140 | } | |
2141 | } | |
2142 | ||
2143 | static void | |
2144 | es1800_child_open (arg, from_tty) | |
2145 | char *arg; | |
2146 | int from_tty; | |
2147 | { | |
2148 | error ("Use the \"run\" command to start a child process."); | |
2149 | } | |
2150 | ||
2151 | static void | |
2152 | es1800_child_detach (args, from_tty) | |
2153 | char *args; | |
2154 | int from_tty; | |
2155 | { | |
2156 | if (args) | |
2157 | { | |
2158 | error ("Argument given to \"detach\" when remotely debugging."); | |
2159 | } | |
2160 | ||
2161 | pop_target (); | |
2162 | if (from_tty) | |
2163 | { | |
2164 | printf ("Ending debugging the process %d.\n", inferior_pid); | |
2165 | } | |
2166 | } | |
2167 | ||
2168 | ||
2169 | /* Define the target subroutine names */ | |
2170 | ||
2171 | static struct target_ops es1800_ops = | |
2172 | { | |
2173 | "es1800", /* to_shortname */ | |
2174 | /* to_longname */ | |
2175 | "Remote serial target in ES1800-emulator protocol", | |
2176 | /* to_doc */ | |
2177 | "Remote debugging on the es1800 emulator via a serial line.\n\ | |
2178 | Specify the serial device it is connected to (e.g. /dev/ttya).", | |
2179 | es1800_open, /* to_open */ | |
2180 | es1800_close, /* to_close */ | |
2181 | es1800_attach, /* to_attach */ | |
2182 | es1800_detach, /* to_detach */ | |
2183 | es1800_resume, /* to_resume */ | |
2184 | NULL, /* to_wait */ | |
2185 | NULL, /* to_fetch_registers */ | |
2186 | NULL, /* to_store_registers */ | |
2187 | es1800_prepare_to_store, /* to_prepare_to_store */ | |
2188 | es1800_xfer_inferior_memory, /* to_xfer_memory */ | |
2189 | es1800_files_info, /* to_files_info */ | |
2190 | es1800_insert_breakpoint, /* to_insert_breakpoint */ | |
2191 | es1800_remove_breakpoint, /* to_remove_breakpoint */ | |
2192 | NULL, /* to_terminal_init */ | |
2193 | NULL, /* to_terminal_inferior */ | |
2194 | NULL, /* to_terminal_ours_for_output */ | |
2195 | NULL, /* to_terminal_ours */ | |
2196 | NULL, /* to_terminal_info */ | |
2197 | NULL, /* to_kill */ | |
2198 | es1800_load, /* to_load */ | |
2199 | NULL, /* to_lookup_symbol */ | |
2200 | es1800_create_inferior, /* to_create_inferior */ | |
2201 | NULL, /* to_mourn_inferior */ | |
2202 | 0, /* to_can_run */ | |
2203 | 0, /* notice_signals */ | |
2204 | core_stratum, /* to_stratum */ | |
2205 | 0, /* to_next */ | |
2206 | 0, /* to_has_all_memory */ | |
2207 | 1, /* to_has_memory */ | |
2208 | 0, /* to_has_stack */ | |
2209 | 0, /* to_has_registers */ | |
2210 | 0, /* to_has_execution */ | |
2211 | NULL, /* to_sections */ | |
2212 | NULL, /* to_sections_end */ | |
2213 | OPS_MAGIC /* to_magic (always last) */ | |
2214 | }; | |
2215 | ||
2216 | /* Define the target subroutine names */ | |
2217 | ||
2218 | static struct target_ops es1800_child_ops = | |
2219 | { | |
2220 | "es1800_process", /* to_shortname */ | |
2221 | /* to_longname */ | |
2222 | "Remote serial target in ES1800-emulator protocol", | |
2223 | /* to_doc */ | |
2224 | "Remote debugging on the es1800 emulator via a serial line.\n\ | |
2225 | Specify the serial device it is connected to (e.g. /dev/ttya).", | |
2226 | es1800_child_open, /* to_open */ | |
2227 | NULL, /* to_close */ | |
2228 | es1800_attach, /* to_attach */ | |
2229 | es1800_child_detach, /* to_detach */ | |
2230 | es1800_resume, /* to_resume */ | |
2231 | es1800_wait, /* to_wait */ | |
2232 | es1800_fetch_register, /* to_fetch_registers */ | |
2233 | es1800_store_register, /* to_store_registers */ | |
2234 | es1800_prepare_to_store, /* to_prepare_to_store */ | |
2235 | es1800_xfer_inferior_memory, /* to_xfer_memory */ | |
2236 | es1800_files_info, /* to_files_info */ | |
2237 | es1800_insert_breakpoint, /* to_insert_breakpoint */ | |
2238 | es1800_remove_breakpoint, /* to_remove_breakpoint */ | |
2239 | NULL, /* to_terminal_init */ | |
2240 | NULL, /* to_terminal_inferior */ | |
2241 | NULL, /* to_terminal_ours_for_output */ | |
2242 | NULL, /* to_terminal_ours */ | |
2243 | NULL, /* to_terminal_info */ | |
2244 | es1800_kill, /* to_kill */ | |
2245 | es1800_load, /* to_load */ | |
2246 | NULL, /* to_lookup_symbol */ | |
2247 | es1800_create_inferior, /* to_create_inferior */ | |
2248 | es1800_mourn_inferior, /* to_mourn_inferior */ | |
2249 | 0, /* to_can_run */ | |
2250 | 0, /* notice_signals */ | |
2251 | process_stratum, /* to_stratum */ | |
2252 | 0, /* to_next */ | |
2253 | 1, /* to_has_all_memory */ | |
2254 | 1, /* to_has_memory */ | |
2255 | 1, /* to_has_stack */ | |
2256 | 1, /* to_has_registers */ | |
2257 | 1, /* to_has_execution */ | |
2258 | NULL, /* to_sections */ | |
2259 | NULL, /* to_sections_end */ | |
2260 | OPS_MAGIC /* to_magic (always last) */ | |
2261 | }; | |
895efe6b | 2262 | #endif /* 0 */ |
91c87211 | 2263 | |
91c87211 JK |
2264 | void |
2265 | _initialize_es1800 () | |
2266 | { | |
895efe6b | 2267 | #if 0 |
91c87211 JK |
2268 | add_target (&es1800_ops); |
2269 | add_target (&es1800_child_ops); | |
2270 | add_com ("transparent", class_support, es1800_transparent, | |
2271 | "Start transparent communication with the ES 1800 emulator."); | |
2272 | add_com ("init_break", class_support, es1800_init_break, | |
2273 | "Download break routine and initialize break facility on ES 1800"); | |
895efe6b | 2274 | #endif |
91c87211 | 2275 | } |