Commit | Line | Data |
---|---|---|
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 | ||
93 | #include <stdio.h> | |
94 | #include <signal.h> | |
95 | #include <sys/ioctl.h> | |
96 | #include <sys/file.h> | |
97 | #include <errno.h> | |
98 | #include <ctype.h> | |
99 | #include <string.h> | |
100 | #include <setjmp.h> | |
101 | #include <fcntl.h> | |
102 | #include "defs.h" | |
103 | #include "frame.h" | |
104 | #include "inferior.h" | |
105 | #include "target.h" | |
106 | #include "wait.h" | |
91c87211 | 107 | #include "command.h" |
a94abe5b | 108 | #include "remote-utils.h" |
3a479851 JK |
109 | #include "gdbcore.h" |
110 | #include "serial.h" | |
91c87211 JK |
111 | |
112 | /* Prototypes for local functions */ | |
113 | ||
114 | static void | |
115 | es1800_child_detach PARAMS ((char *, int)); | |
116 | ||
117 | static void | |
118 | es1800_child_open PARAMS ((char *, int)); | |
119 | ||
120 | static void | |
121 | es1800_transparent PARAMS ((char *, int)); | |
122 | ||
123 | static void | |
124 | es1800_create_inferior PARAMS ((char *, char *, char **)); | |
125 | ||
126 | static void | |
127 | es1800_load PARAMS ((char *, int)); | |
128 | ||
129 | static void | |
130 | es1800_kill PARAMS ((void)); | |
131 | ||
132 | static int | |
133 | verify_break PARAMS ((int)); | |
134 | ||
135 | static int | |
136 | es1800_remove_breakpoint PARAMS ((CORE_ADDR, char *)); | |
137 | ||
138 | static int | |
139 | es1800_insert_breakpoint PARAMS ((CORE_ADDR, char *)); | |
140 | ||
141 | static void | |
142 | es1800_files_info PARAMS ((struct target_ops *)); | |
143 | ||
144 | static int | |
145 | es1800_xfer_inferior_memory PARAMS ((CORE_ADDR, char *, int, int, | |
146 | struct target_ops *)); | |
147 | ||
148 | static void | |
149 | es1800_prepare_to_store PARAMS ((void)); | |
150 | ||
3a479851 | 151 | static int es1800_wait PARAMS ((int, struct target_waitstatus *)); |
91c87211 | 152 | |
67ac9759 | 153 | static void es1800_resume PARAMS ((int, int, enum target_signal)); |
91c87211 JK |
154 | |
155 | static void | |
156 | es1800_detach PARAMS ((char *, int)); | |
157 | ||
158 | static void | |
159 | es1800_attach PARAMS ((char *, int)); | |
160 | ||
161 | static int | |
162 | damn_b PARAMS ((char *)); | |
163 | ||
164 | static void | |
165 | es1800_open PARAMS ((char *, int)); | |
166 | ||
167 | static void | |
168 | es1800_timer PARAMS ((void)); | |
169 | ||
170 | static void | |
171 | es1800_reset PARAMS ((char *)); | |
172 | ||
173 | static void | |
174 | es1800_request_quit PARAMS ((void)); | |
175 | ||
176 | static int | |
177 | readchar PARAMS ((void)); | |
178 | ||
179 | static void | |
180 | expect PARAMS ((char *, int)); | |
181 | ||
182 | static void | |
183 | expect_prompt PARAMS ((void)); | |
184 | ||
185 | static void | |
186 | download PARAMS ((FILE *, int, int)); | |
187 | ||
188 | #if 0 | |
189 | static void | |
190 | bfd_copy PARAMS ((bfd *, bfd *)); | |
191 | #endif | |
192 | ||
193 | static void | |
194 | get_break_addr PARAMS ((int, CORE_ADDR *)); | |
195 | ||
196 | static int | |
197 | fromhex PARAMS ((int)); | |
198 | ||
199 | static int | |
200 | tohex PARAMS ((int)); | |
201 | ||
202 | static void | |
203 | es1800_close PARAMS ((int)); | |
204 | ||
205 | static void | |
206 | es1800_fetch_registers PARAMS ((void)); | |
207 | ||
208 | static void | |
209 | es1800_fetch_register PARAMS ((int)); | |
210 | ||
211 | static void | |
212 | es1800_store_register PARAMS ((int)); | |
213 | ||
214 | static void | |
215 | es1800_read_bytes PARAMS ((CORE_ADDR, char *, int)); | |
216 | ||
217 | static void | |
218 | es1800_write_bytes PARAMS ((CORE_ADDR, char *, int)); | |
219 | ||
220 | static void | |
221 | send_with_reply PARAMS ((char *, char *, int)); | |
222 | ||
223 | static void | |
224 | send_command PARAMS ((char *)); | |
225 | ||
226 | static void | |
227 | send PARAMS ((char *)); | |
228 | ||
229 | static void | |
230 | getmessage PARAMS ((char *, int)); | |
231 | ||
232 | static void | |
233 | es1800_mourn_inferior PARAMS ((void)); | |
234 | ||
235 | static void | |
236 | es1800_create_break_insn PARAMS ((char *, int)); | |
237 | ||
238 | static void | |
239 | es1800_init_break PARAMS ((char *, int)); | |
240 | ||
241 | /* Local variables */ | |
242 | ||
3a479851 | 243 | /* FIXME: Convert this to use "set remotedebug" instead. */ |
91c87211 JK |
244 | #define LOG_FILE "es1800.log" |
245 | #if defined (LOG_FILE) | |
246 | static FILE *log_file; | |
247 | #endif | |
248 | ||
249 | extern struct target_ops es1800_ops; /* Forward decl */ | |
250 | extern struct target_ops es1800_child_ops; /* Forward decl */ | |
251 | ||
252 | static int kiodebug; | |
253 | static int timeout = 100; | |
254 | static char *savename; /* Name of i/o device used */ | |
3a479851 | 255 | static serial_ttystate es1800_saved_ttystate; |
91c87211 JK |
256 | static int es1800_fc_save; /* Save fcntl state */ |
257 | ||
258 | /* indicates that the emulator uses 32-bit data-adress (68020-mode) | |
259 | instead of 24-bit (68000 -mode) */ | |
260 | ||
261 | static int m68020; | |
262 | ||
263 | #define MODE (m68020 ? "M68020" : "M68000" ) | |
264 | #define ES1800_BREAK_VEC (0xf) | |
265 | ||
3a479851 | 266 | /* Descriptor for I/O to remote machine. Initialize it to NULL so that |
91c87211 JK |
267 | es1800_open knows that we don't have a file open when the program |
268 | starts. */ | |
269 | ||
3a479851 | 270 | static serial_t es1800_desc = NULL; |
91c87211 JK |
271 | |
272 | #define PBUFSIZ 1000 | |
273 | #define HDRLEN sizeof("@.BAAAAAAAA=$VV\r") | |
274 | ||
275 | /* Maximum number of bytes to read/write at once. The value here | |
276 | is chosen to fill up a packet. */ | |
277 | ||
278 | #define MAXBUFBYTES ((PBUFSIZ-150)*16/75 ) | |
279 | ||
280 | static int es1800_break_vec = 0; | |
281 | static char es1800_break_insn[2]; | |
282 | static long es1800_break_address; | |
283 | static void (*old_sigint)(); /* Old signal-handler for sigint */ | |
284 | static jmp_buf interrupt; | |
285 | ||
286 | /* Local signalhandler to allow breaking tranfers or program run. | |
287 | Rely on global variables: old_sigint(), interrupt */ | |
288 | ||
289 | static void | |
290 | es1800_request_quit () | |
291 | { | |
292 | /* restore original signalhandler */ | |
293 | signal (SIGINT, old_sigint); | |
294 | longjmp (interrupt, 1); | |
295 | } | |
296 | ||
297 | ||
298 | /* Reset emulator. | |
299 | Sending reset character(octal 32) to emulator. | |
300 | quit - return to '(esgdb)' prompt or continue */ | |
301 | ||
302 | static void | |
303 | es1800_reset (quit) | |
304 | char *quit; | |
305 | { | |
306 | char buf[80]; | |
307 | ||
308 | if (quit) | |
309 | { | |
310 | printf ("\nResetting emulator... "); | |
311 | } | |
312 | strcpy (buf, "\032"); | |
313 | send (buf); | |
314 | expect_prompt (); | |
315 | if (quit) | |
316 | { | |
317 | error ("done\n"); | |
318 | } | |
319 | } | |
320 | ||
321 | ||
91c87211 JK |
322 | /* Open a connection to a remote debugger and push the new target |
323 | onto the stack. Check if the emulator is responding and find out | |
324 | what kind of processor the emulator is connected to. | |
325 | Initiate the breakpoint handling in the emulator. | |
326 | ||
327 | name - the filename used for communication (ex. '/dev/tta') | |
328 | from_tty - says whether to be verbose or not */ | |
329 | ||
330 | static void | |
331 | es1800_open (name, from_tty) | |
332 | char *name; | |
333 | int from_tty; | |
334 | { | |
91c87211 JK |
335 | char buf[PBUFSIZ]; |
336 | char *p; | |
337 | int i, fcflag; | |
91c87211 JK |
338 | |
339 | m68020 = 0; | |
340 | ||
341 | if (!name) /* no device name given in target command */ | |
342 | { | |
343 | error_no_arg ("serial port device name"); | |
344 | } | |
91c87211 JK |
345 | |
346 | target_preopen (from_tty); | |
347 | es1800_close (0); | |
348 | ||
349 | /* open the device and configure it for communication */ | |
350 | ||
351 | #ifndef DEBUG_STDIN | |
352 | ||
3a479851 JK |
353 | es1800_desc = SERIAL_OPEN (name); |
354 | if (es1800_desc == NULL) | |
91c87211 JK |
355 | { |
356 | perror_with_name (name); | |
357 | } | |
358 | savename = savestring (name, strlen (name)); | |
359 | ||
3a479851 | 360 | es1800_saved_ttystate = SERIAL_GET_TTY_STATE (es1800_desc); |
91c87211 | 361 | |
3a479851 | 362 | if ((fcflag = fcntl (es1800_desc->fd, F_GETFL, 0)) == -1) |
91c87211 JK |
363 | { |
364 | perror_with_name ("fcntl serial"); | |
365 | } | |
366 | es1800_fc_save = fcflag; | |
367 | ||
368 | fcflag = (fcflag & (FREAD | FWRITE)); /* mask out any funny stuff */ | |
3a479851 | 369 | if (fcntl (es1800_desc->fd, F_SETFL, fcflag) == -1) |
91c87211 JK |
370 | { |
371 | perror_with_name ("fcntl serial"); | |
372 | } | |
373 | ||
3a479851 | 374 | if (SERIAL_SETBAUDRATE (es1800_desc, baud_rate)) |
91c87211 | 375 | { |
3a479851 JK |
376 | SERIAL_CLOSE (es1800_desc); |
377 | perror_with_name (name); | |
91c87211 JK |
378 | } |
379 | ||
3a479851 JK |
380 | SERIAL_RAW (es1800_desc); |
381 | ||
382 | /* If there is something sitting in the buffer we might take it as a | |
383 | response to a command, which would be bad. */ | |
384 | SERIAL_FLUSH_INPUT (es1800_desc); | |
385 | ||
91c87211 JK |
386 | #endif /* DEBUG_STDIN */ |
387 | ||
388 | push_target (&es1800_ops); /* Switch to using remote target now */ | |
389 | if (from_tty) | |
390 | { | |
391 | printf ("Remote ES1800 debugging using %s\n", name); | |
392 | } | |
393 | ||
91c87211 JK |
394 | #if defined (LOG_FILE) |
395 | ||
396 | log_file = fopen (LOG_FILE, "w"); | |
397 | if (log_file == NULL) | |
398 | { | |
399 | perror_with_name (LOG_FILE); | |
400 | } | |
401 | ||
402 | #endif /* LOG_FILE */ | |
403 | ||
404 | /* Hello? Are you there?, also check mode */ | |
405 | ||
406 | /* send_with_reply( "DB 0 TO 1", buf, sizeof(buf)); */ | |
407 | /* for (p = buf, i = 0; *p++ =='0';) */ /* count the number of zeros */ | |
408 | /* i++; */ | |
409 | ||
410 | send ("\032"); | |
411 | getmessage (buf, sizeof (buf)); /* send reset character */ | |
412 | ||
413 | if (from_tty) | |
414 | { | |
415 | printf ("Checking mode.... "); | |
416 | } | |
417 | /* m68020 = (i==8); */ /* if eight zeros then we are in m68020 mode */ | |
418 | ||
419 | /* What kind of processor am i talking to ?*/ | |
420 | p = buf; | |
421 | while (*p++ != '\n') {;} | |
422 | while (*p++ != '\n') {;} | |
423 | while (*p++ != '\n') {;} | |
424 | for (i = 0; i < 20; i++, p++) {;} | |
425 | m68020 = !strncmp (p, "68020", 5); | |
426 | if (from_tty) | |
427 | { | |
428 | printf ("You are in %s(%c%c%c%c%c)-mode\n", MODE, p[0], p[1], p[2], | |
429 | p[3], p[4]); | |
430 | } | |
431 | ||
432 | /* if no init_break statement is present in .gdb file we have to check | |
433 | whether to download a breakpoint routine or not */ | |
434 | ||
435 | #if 0 | |
436 | if ((es1800_break_vec == 0) || (verify_break (es1800_break_vec) != 0) | |
437 | && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? ")) | |
438 | { | |
439 | CORE_ADDR memaddress; | |
440 | printf ("Give the start address of the breakpoint routine: "); | |
441 | scanf ("%li", &memaddress); | |
442 | es1800_init_break ((es1800_break_vec ? es1800_break_vec : | |
443 | ES1800_BREAK_VEC), memaddress); | |
444 | } | |
445 | #endif | |
446 | ||
447 | } | |
448 | ||
449 | /* Close out all files and local state before this target loses control. | |
450 | quitting - are we quitting gdb now? */ | |
451 | ||
452 | static void | |
453 | es1800_close (quitting) | |
454 | int quitting; | |
455 | { | |
3a479851 | 456 | if (es1800_desc != NULL) |
91c87211 JK |
457 | { |
458 | printf ("\nClosing connection to emulator...\n"); | |
3a479851 JK |
459 | if (SERIAL_SET_TTY_STATE (es1800_desc, es1800_saved_ttystate) < 0) |
460 | print_sys_errmsg ("warning: unable to restore tty state", errno); | |
461 | fcntl (es1800_desc->fd, F_SETFL, es1800_fc_save); | |
462 | SERIAL_CLOSE (es1800_desc); | |
463 | es1800_desc = NULL; | |
91c87211 JK |
464 | } |
465 | if (savename != NULL) | |
466 | { | |
467 | free (savename); | |
468 | } | |
469 | savename = NULL; | |
470 | ||
471 | #if defined (LOG_FILE) | |
472 | ||
473 | if (log_file != NULL) | |
474 | { | |
475 | if (ferror (log_file)) | |
476 | { | |
477 | printf ("Error writing log file.\n"); | |
478 | } | |
479 | if (fclose (log_file) != 0) | |
480 | { | |
481 | printf ("Error closing log file.\n"); | |
482 | } | |
483 | log_file = NULL; | |
484 | } | |
485 | ||
486 | #endif /* LOG_FILE */ | |
487 | ||
488 | } | |
489 | ||
91c87211 JK |
490 | /* Attaches to a process on the target side |
491 | proc_id - the id of the process to be attached. | |
492 | from_tty - says whether to be verbose or not */ | |
493 | ||
494 | static void | |
495 | es1800_attach (args, from_tty) | |
496 | char *args; | |
497 | int from_tty; | |
498 | { | |
499 | error ("Cannot attach to pid %s, this feature is not implemented yet.", | |
500 | args); | |
501 | } | |
502 | ||
503 | ||
504 | /* Takes a program previously attached to and detaches it. | |
505 | We better not have left any breakpoints | |
506 | in the program or it'll die when it hits one. | |
507 | Close the open connection to the remote debugger. | |
508 | Use this when you want to detach and do something else | |
509 | with your gdb. | |
510 | ||
511 | args - arguments given to the 'detach' command | |
512 | from_tty - says whether to be verbose or not */ | |
513 | ||
514 | static void | |
515 | es1800_detach (args, from_tty) | |
516 | char *args; | |
517 | int from_tty; | |
518 | { | |
519 | if (args) | |
520 | { | |
521 | error ("Argument given to \"detach\" when remotely debugging."); | |
522 | } | |
523 | pop_target (); | |
524 | if (from_tty) | |
525 | { | |
526 | printf ("Ending es1800 remote debugging.\n"); | |
527 | } | |
528 | } | |
529 | ||
530 | ||
531 | /* Tell the remote machine to resume. | |
532 | step - single-step or run free | |
533 | siggnal - the signal value to be given to the target (0 = no signal) */ | |
534 | ||
535 | static void | |
25286543 SG |
536 | es1800_resume (pid, step, siggnal) |
537 | int pid; | |
91c87211 | 538 | int step; |
67ac9759 | 539 | enum target_signal siggnal; |
91c87211 JK |
540 | { |
541 | char buf[PBUFSIZ]; | |
542 | ||
543 | if (siggnal) | |
544 | { | |
545 | error ("Can't send signals to a remote system."); | |
546 | } | |
547 | if (step) | |
548 | { | |
549 | strcpy (buf,"STP\r"); | |
550 | send (buf); | |
551 | } | |
552 | else | |
553 | { | |
554 | send_command ("RBK"); | |
555 | } | |
556 | } | |
557 | ||
558 | /* Wait until the remote machine stops, then return, | |
559 | storing status in STATUS just as `wait' would. | |
560 | status - */ | |
561 | ||
562 | static int | |
3a479851 JK |
563 | es1800_wait (pid, status) |
564 | int pid; | |
67ac9759 | 565 | struct target_waitstatus *status; |
91c87211 JK |
566 | { |
567 | unsigned char buf[PBUFSIZ]; | |
568 | int old_timeout = timeout; | |
569 | ||
67ac9759 JK |
570 | status->kind = TARGET_WAITKIND_EXITED; |
571 | status->value.integer = 0; | |
572 | ||
91c87211 JK |
573 | timeout = 0; /* Don't time out -- user program is running. */ |
574 | if (!setjmp (interrupt)) | |
575 | { | |
576 | old_sigint = signal (SIGINT, es1800_request_quit); | |
577 | while (1) | |
578 | { | |
579 | getmessage (buf, sizeof(buf)); | |
580 | if (strncmp ( buf, "\r\n* BREAK *", 11) == 0) | |
581 | { | |
67ac9759 JK |
582 | status->kind = TARGET_WAITKIND_STOPPED; |
583 | status->value.sig = TARGET_SIGNAL_TRAP; | |
91c87211 JK |
584 | send_command ("STP"); /* Restore stack and PC and such */ |
585 | if (m68020) | |
586 | { | |
587 | send_command ("STP"); | |
588 | } | |
589 | break; | |
590 | } | |
591 | if (strncmp (buf, "STP\r\n ", 6) == 0) | |
592 | { | |
67ac9759 JK |
593 | status->kind = TARGET_WAITKIND_STOPPED; |
594 | status->value.sig = TARGET_SIGNAL_TRAP; | |
91c87211 JK |
595 | break; |
596 | } | |
597 | if (buf[strlen (buf) - 2] == 'R') | |
598 | { | |
599 | printf ("Unexpected emulator reply: \n%s\n", buf); | |
600 | } | |
601 | else | |
602 | { | |
603 | printf ("Unexpected stop: \n%s\n", buf); | |
67ac9759 JK |
604 | status->kind = TARGET_WAITKIND_STOPPED; |
605 | status->value.sig = TARGET_SIGNAL_QUIT; | |
91c87211 JK |
606 | break; |
607 | } | |
608 | } | |
609 | } | |
610 | else | |
611 | { | |
612 | fflush (stdin); | |
613 | printf ("\nStopping emulator..."); | |
614 | if (!setjmp (interrupt)) | |
615 | { | |
616 | old_sigint = signal (SIGINT, es1800_request_quit); | |
617 | send_command ("STP"); | |
618 | printf (" emulator stopped\n"); | |
67ac9759 JK |
619 | status->kind = TARGET_WAITKIND_STOPPED; |
620 | status->value.sig = TARGET_SIGNAL_INT; | |
91c87211 JK |
621 | } |
622 | else | |
623 | { | |
624 | fflush (stdin); | |
625 | es1800_reset ((char*) 1); | |
626 | } | |
627 | } | |
628 | signal (SIGINT, old_sigint); | |
629 | timeout = old_timeout; | |
630 | return (0); | |
631 | } | |
632 | ||
633 | ||
634 | /* Fetch register values from remote machine. | |
635 | regno - the register to be fetched (fetch all registers if -1) */ | |
636 | ||
637 | static void | |
638 | es1800_fetch_register (regno) | |
639 | int regno; | |
640 | { | |
641 | char buf[PBUFSIZ]; | |
642 | int k; | |
643 | int r; | |
644 | char *p; | |
645 | static char regtab[18][4] = | |
646 | { | |
647 | "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ", | |
648 | "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP", | |
649 | "SR ", "PC " | |
650 | }; | |
651 | ||
652 | if ((regno < 15) || (regno == 16) || (regno == 17)) | |
653 | { | |
654 | r = regno * 4; | |
655 | send_with_reply (regtab[regno], buf, sizeof (buf)); | |
656 | p = buf; | |
657 | for (k = 0; k < 4; k++) | |
658 | { | |
659 | if ((p[k*2 + 1] == 0) || (p[k*2 + 2] == 0)) | |
660 | { | |
661 | error ("Emulator reply is too short: %s", buf); | |
662 | } | |
663 | registers[r++] = (fromhex (p[k*2 + 1]) * 16) + fromhex (p[k*2 + 2]); | |
664 | } | |
665 | } | |
666 | else | |
667 | { | |
668 | es1800_fetch_registers (); | |
669 | } | |
670 | } | |
671 | ||
672 | /* Read the remote registers into REGISTERS. | |
673 | Always fetches all registers. */ | |
674 | ||
675 | static void | |
676 | es1800_fetch_registers () | |
677 | { | |
678 | char buf[PBUFSIZ]; | |
679 | char SR_buf[PBUFSIZ]; | |
680 | int i; | |
681 | int k; | |
682 | int r; | |
683 | char *p; | |
684 | ||
685 | send_with_reply ("DR", buf, sizeof (buf)); | |
686 | ||
687 | /* Reply is edited to a string that describes registers byte by byte, | |
688 | each byte encoded as two hex characters. */ | |
689 | ||
690 | p = buf; | |
691 | r = 0; | |
692 | ||
693 | /* parsing row one - D0-D7-registers */ | |
694 | ||
695 | while (*p++ != '\n') {;} | |
696 | for (i = 4; i < 70; i += (i == 39 ? 3 : 1)) | |
697 | { | |
698 | for (k = 0; k < 4; k++) | |
699 | { | |
700 | if (p[i+0] == 0 || p[i+1] == 0) | |
701 | { | |
702 | error ("Emulator reply is too short: %s", buf); | |
703 | } | |
704 | registers[r++] = (fromhex (p[i+0]) * 16) + fromhex (p[i+1]); | |
705 | i += 2; | |
706 | } | |
707 | } | |
708 | p += i; | |
709 | ||
710 | /* parsing row two - A0-A6-registers */ | |
711 | ||
712 | while (*p++ != '\n') {;} | |
713 | for (i = 4; i < 61; i += (i == 39 ? 3 : 1)) | |
714 | { | |
715 | for (k = 0; k < 4; k++) | |
716 | { | |
717 | if (p[i+0] == 0 || p[i+1] == 0) | |
718 | { | |
719 | error ("Emulator reply is too short: %s", buf); | |
720 | } | |
721 | registers[r++] = (fromhex (p[i+0])) * 16 + fromhex (p[i+1]); | |
722 | i += 2; | |
723 | } | |
724 | } | |
725 | p += i; | |
726 | ||
727 | while (*p++ != '\n') {;} | |
728 | ||
729 | /* fetch SSP-, SR- and PC-registers */ | |
730 | ||
731 | /* first - check STATUS-word and decide which stackpointer to use */ | |
732 | ||
733 | send_with_reply ("SR", SR_buf, sizeof (SR_buf)); | |
734 | p = SR_buf; | |
735 | p += 5; | |
736 | ||
737 | if (m68020) | |
738 | { | |
739 | if (*p == '3') /* use masterstackpointer MSP */ | |
740 | { | |
741 | send_with_reply ("MSP", buf, sizeof (buf)); | |
742 | } | |
743 | else if (*p == '2') /* use interruptstackpointer ISP */ | |
744 | { | |
745 | send_with_reply ("ISP", buf, sizeof (buf)); | |
746 | } | |
747 | else /* use userstackpointer USP */ | |
748 | { | |
749 | send_with_reply ("USP", buf, sizeof (buf)); | |
750 | } | |
751 | p = buf; | |
752 | for (k = 0; k<4; k++) | |
753 | { | |
754 | if (p[k*2+1] == 0 || p[k*2+2] == 0) | |
755 | { | |
756 | error ("Emulator reply is too short: %s", buf); | |
757 | } | |
758 | registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]); | |
759 | } | |
760 | ||
761 | p = SR_buf; | |
762 | for (k = 0; k < 4; k++) | |
763 | { | |
764 | if (p[k*2+1] == 0 || p[k*2+2] == 0) | |
765 | { | |
766 | error ("Emulator reply is too short: %s", buf); | |
767 | } | |
768 | registers[r++] = | |
769 | fromhex (SR_buf[k*2+1]) * 16 + fromhex (SR_buf[k*2+2]); | |
770 | } | |
771 | send_with_reply ("PC", buf, sizeof (buf)); | |
772 | p = buf; | |
773 | for (k = 0; k<4; k++) | |
774 | { | |
775 | if (p[k*2+1] == 0 || p[k*2+2] == 0) | |
776 | { | |
777 | error ("Emulator reply is too short: %s", buf); | |
778 | } | |
779 | registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]); | |
780 | } | |
781 | } | |
782 | else /* 68000-mode */ | |
783 | { | |
784 | if (*p == '2') /* use supervisorstackpointer SSP */ | |
785 | { | |
786 | send_with_reply ("SSP", buf, sizeof (buf)); | |
787 | } | |
788 | else /* use userstackpointer USP */ | |
789 | { | |
790 | send_with_reply ("USP", buf, sizeof (buf)); | |
791 | } | |
792 | ||
793 | /* fetch STACKPOINTER */ | |
794 | ||
795 | p = buf; | |
796 | for (k = 0; k < 4; k++) | |
797 | { | |
798 | if (p[k*2 + 1] == 0 || p[k*2 + 2] == 0) | |
799 | { | |
800 | error ("Emulator reply is too short: %s", buf); | |
801 | } | |
802 | registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]); | |
803 | } | |
804 | ||
805 | /* fetch STATUS */ | |
806 | ||
807 | p = SR_buf; | |
808 | for (k = 0; k < 4; k++) | |
809 | { | |
810 | if (p[k*2+1] == 0 || p[k*2+2] == 0) | |
811 | { | |
812 | error ("Emulator reply is too short: %s", buf); | |
813 | } | |
814 | registers[r++] = | |
815 | fromhex (SR_buf[k*2+1]) * 16 + fromhex (SR_buf[k*2+2]); | |
816 | } | |
817 | ||
818 | /* fetch PC */ | |
819 | ||
820 | send_with_reply ("PC", buf, sizeof (buf)); | |
821 | p = buf; | |
822 | for (k = 0; k < 4; k++) | |
823 | { | |
824 | if (p[k*2+1] == 0 || p[k*2+2] == 0) | |
825 | { | |
826 | error ("Emulator reply is too short: %s", buf); | |
827 | } | |
828 | registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]); | |
829 | } | |
830 | } | |
831 | } | |
832 | ||
833 | /* Store register value, located in REGISTER, on the target processor. | |
834 | regno - the register-number of the register to store | |
835 | (-1 means store them all) | |
836 | FIXME: Return errno value. */ | |
837 | ||
838 | static void | |
839 | es1800_store_register(regno) | |
840 | int regno; | |
841 | { | |
842 | ||
843 | static char regtab[18][4] = | |
844 | { | |
845 | "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ", | |
846 | "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP", | |
847 | "SR ", "PC " | |
848 | }; | |
849 | ||
850 | char buf[PBUFSIZ]; | |
851 | char SR_buf[PBUFSIZ]; | |
852 | char stack_pointer[4]; | |
853 | char *p; | |
854 | int i; | |
855 | int j; | |
856 | int k; | |
857 | unsigned char *r; | |
858 | ||
859 | r = (unsigned char *) registers; | |
860 | ||
861 | if (regno == -1) /* write all registers */ | |
862 | { | |
863 | j = 0; | |
864 | k = 18; | |
865 | } | |
866 | else /* write one register */ | |
867 | { | |
868 | j = regno; | |
869 | k = regno+1; | |
870 | r += regno * 4; | |
871 | } | |
872 | ||
873 | if ((regno == -1) || (regno == 15)) | |
874 | { | |
875 | /* fetch current status */ | |
876 | send_with_reply ("SR", SR_buf, sizeof (SR_buf)); | |
877 | p = SR_buf; | |
878 | p += 5; | |
879 | if (m68020) | |
880 | { | |
881 | if (*p == '3') /* use masterstackpointer MSP */ | |
882 | { | |
883 | strcpy (stack_pointer,"MSP"); | |
884 | } | |
885 | else | |
886 | { | |
887 | if (*p == '2') /* use interruptstackpointer ISP */ | |
888 | { | |
889 | strcpy (stack_pointer,"ISP"); | |
890 | } | |
891 | else | |
892 | { | |
893 | strcpy (stack_pointer,"USP"); /* use userstackpointer USP */ | |
894 | } | |
895 | } | |
896 | } | |
897 | else /* 68000-mode */ | |
898 | { | |
899 | if (*p == '2') /* use supervisorstackpointer SSP */ | |
900 | { | |
901 | strcpy (stack_pointer,"SSP"); | |
902 | } | |
903 | else | |
904 | { | |
905 | strcpy (stack_pointer,"USP");/* use userstackpointer USP */ | |
906 | } | |
907 | } | |
908 | strcpy (regtab[15],stack_pointer); | |
909 | } | |
910 | ||
911 | for (i = j; i<k; i++) | |
912 | { | |
913 | buf[0] = regtab[i][0]; | |
914 | buf[1] = regtab[i][1]; | |
915 | buf[2] = regtab[i][2]; | |
916 | buf[3] = '='; | |
917 | buf[4] = '$'; | |
918 | buf[5] = tohex ((*r >> 4) & 0x0f); | |
919 | buf[6] = tohex (*r++ & 0x0f); | |
920 | buf[7] = tohex ((*r >> 4) & 0x0f); | |
921 | buf[8] = tohex (*r++ & 0x0f); | |
922 | buf[9] = tohex ((*r >> 4) & 0x0f); | |
923 | buf[10] = tohex (*r++ & 0x0f); | |
924 | buf[11] = tohex ((*r >> 4) & 0x0f); | |
925 | buf[12] = tohex (*r++ & 0x0f); | |
926 | buf[13] = 0; | |
927 | ||
928 | send_with_reply (buf, buf, sizeof (buf)); /* FIXME, reply not used? */ | |
929 | } | |
930 | } | |
931 | ||
932 | ||
933 | /* Prepare to store registers. */ | |
934 | ||
935 | static void | |
936 | es1800_prepare_to_store () | |
937 | { | |
938 | /* Do nothing, since we can store individual regs */ | |
939 | } | |
940 | ||
941 | /* Convert hex digit A to a number. */ | |
942 | ||
943 | static int | |
944 | fromhex (a) | |
945 | int a; | |
946 | { | |
947 | if (a >= '0' && a <= '9') | |
948 | { | |
949 | return a - '0'; | |
950 | } | |
951 | else if (a >= 'a' && a <= 'f') | |
952 | { | |
953 | return a - 'a' + 10; | |
954 | } | |
955 | else if (a >= 'A' && a <= 'F') | |
956 | { | |
957 | return a - 'A' + 10; | |
958 | } | |
959 | else | |
960 | { | |
961 | error ("Reply contains invalid hex digit"); | |
962 | } | |
963 | return (-1); | |
964 | } | |
965 | ||
966 | ||
967 | /* Convert number NIB to a hex digit. */ | |
968 | ||
969 | static int | |
970 | tohex (nib) | |
971 | int nib; | |
972 | { | |
973 | if (nib < 10) | |
974 | { | |
975 | return ('0' + nib); | |
976 | } | |
977 | else | |
978 | { | |
979 | return ('A' + nib - 10); | |
980 | } | |
981 | } | |
982 | ||
983 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
984 | to or from debugger address MYADDR. Write to inferior if WRITE is | |
985 | nonzero. Returns length of data written or read; 0 for error. | |
986 | ||
987 | memaddr - the target's address | |
988 | myaddr - gdb's address | |
989 | len - number of bytes | |
990 | write - write if != 0 otherwise read */ | |
991 | ||
992 | static int | |
993 | es1800_xfer_inferior_memory (memaddr, myaddr, len, write, tops) | |
994 | CORE_ADDR memaddr; | |
995 | char *myaddr; | |
996 | int len; | |
997 | int write; | |
998 | struct target_ops *tops; /* Unused */ | |
999 | { | |
1000 | int origlen = len; | |
1001 | int xfersize; | |
1002 | ||
1003 | while (len > 0) | |
1004 | { | |
1005 | xfersize = len > MAXBUFBYTES ? MAXBUFBYTES : len; | |
1006 | if (write) | |
1007 | { | |
1008 | es1800_write_bytes (memaddr, myaddr, xfersize); | |
1009 | } | |
1010 | else | |
1011 | { | |
1012 | es1800_read_bytes (memaddr, myaddr, xfersize); | |
1013 | } | |
1014 | memaddr += xfersize; | |
1015 | myaddr += xfersize; | |
1016 | len -= xfersize; | |
1017 | } | |
1018 | return (origlen); /* no error possible */ | |
1019 | } | |
1020 | ||
1021 | ||
1022 | /* Write memory data directly to the emulator. | |
1023 | This does not inform the data cache; the data cache uses this. | |
1024 | MEMADDR is the address in the remote memory space. | |
1025 | MYADDR is the address of the buffer in our space. | |
1026 | LEN is the number of bytes. | |
1027 | ||
1028 | memaddr - the target's address | |
1029 | myaddr - gdb's address | |
1030 | len - number of bytes */ | |
1031 | ||
1032 | static void | |
1033 | es1800_write_bytes (memaddr, myaddr, len) | |
1034 | CORE_ADDR memaddr; | |
1035 | char *myaddr; | |
1036 | int len; | |
1037 | { | |
1038 | char buf[PBUFSIZ]; | |
1039 | int i; | |
1040 | char *p; | |
1041 | ||
1042 | p = myaddr; | |
1043 | for (i = 0; i < len; i++) | |
1044 | { | |
1045 | sprintf (buf, "@.B$%x=$%x", memaddr+i, (*p++) & 0xff); | |
1046 | send_with_reply (buf, buf, sizeof (buf)); /* FIXME send_command? */ | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | ||
1051 | /* Read memory data directly from the emulator. | |
1052 | This does not use the data cache; the data cache uses this. | |
1053 | ||
1054 | memaddr - the target's address | |
1055 | myaddr - gdb's address | |
1056 | len - number of bytes */ | |
1057 | ||
1058 | static void | |
1059 | es1800_read_bytes (memaddr, myaddr, len) | |
1060 | CORE_ADDR memaddr; | |
1061 | char *myaddr; | |
1062 | int len; | |
1063 | { | |
1064 | static int DB_tab[16] = {8,11,14,17,20,23,26,29,34,37,40,43,46,49,52,55}; | |
1065 | char buf[PBUFSIZ]; | |
1066 | int i; | |
1067 | int low_addr; | |
1068 | char *p; | |
1069 | char *b; | |
1070 | ||
1071 | if (len > PBUFSIZ / 2 - 1) | |
1072 | { | |
1073 | abort (); | |
1074 | } | |
1075 | ||
1076 | if (len == 1) /* The emulator does not like expressions like: */ | |
1077 | { | |
1078 | len = 2; /* DB.B $20018 TO $20018 */ | |
1079 | } | |
1080 | ||
1081 | /* Reply describes registers byte by byte, each byte encoded as two hex | |
1082 | characters. */ | |
1083 | ||
1084 | sprintf (buf, "DB.B $%x TO $%x", memaddr, memaddr+len-1); | |
1085 | send_with_reply (buf, buf, sizeof (buf)); | |
1086 | b = buf; | |
1087 | low_addr = memaddr&0x0f; | |
1088 | for (i = low_addr; i < low_addr + len; i++) | |
1089 | { | |
1090 | if ((!(i % 16)) && i) | |
1091 | { /* if (i = 16,32,48) */ | |
1092 | while (*p++!='\n') {;} | |
1093 | b = p; | |
1094 | } | |
1095 | p = b + DB_tab[i%16] + (m68020 ? 2 : 0); | |
1096 | if (p[0] == 32 || p[1] == 32) | |
1097 | { | |
1098 | error ("Emulator reply is too short: %s", buf); | |
1099 | } | |
1100 | myaddr[i-low_addr] = fromhex (p[0]) * 16 + fromhex (p[1]); | |
1101 | } | |
1102 | } | |
1103 | ||
1104 | /* Information about the current target */ | |
1105 | ||
1106 | static void | |
1107 | es1800_files_info (tops) | |
1108 | struct target_ops *tops; /* Unused */ | |
1109 | { | |
1110 | printf ("ES1800 Attached to %s at %d baud in %s mode\n", savename, 19200, | |
1111 | MODE); | |
1112 | } | |
1113 | ||
1114 | ||
1115 | /* We read the contents of the target location and stash it, | |
1116 | then overwrite it with a breakpoint instruction. | |
1117 | ||
1118 | addr - is the target location in the target machine. | |
1119 | contents_cache - is a pointer to memory allocated for saving the target contents. | |
1120 | It is guaranteed by the caller to be long enough to save sizeof | |
1121 | BREAKPOINT bytes. | |
1122 | ||
1123 | FIXME: This size is target_arch dependent and should be available in | |
1124 | the target_arch transfer vector, if we ever have one... */ | |
1125 | ||
1126 | static int | |
1127 | es1800_insert_breakpoint (addr, contents_cache) | |
1128 | CORE_ADDR addr; | |
1129 | char *contents_cache; | |
1130 | { | |
1131 | int val; | |
1132 | ||
1133 | val = target_read_memory (addr, contents_cache, sizeof (es1800_break_insn)); | |
1134 | ||
1135 | if (val == 0) | |
1136 | { | |
1137 | val = target_write_memory (addr, es1800_break_insn, | |
1138 | sizeof (es1800_break_insn)); | |
1139 | } | |
1140 | ||
1141 | return (val); | |
1142 | } | |
1143 | ||
1144 | ||
1145 | /* Write back the stashed instruction | |
1146 | ||
1147 | addr - is the target location in the target machine. | |
1148 | contents_cache - is a pointer to memory allocated for saving the target contents. | |
1149 | It is guaranteed by the caller to be long enough to save sizeof | |
1150 | BREAKPOINT bytes. */ | |
1151 | ||
1152 | static int | |
1153 | es1800_remove_breakpoint (addr, contents_cache) | |
1154 | CORE_ADDR addr; | |
1155 | char *contents_cache; | |
1156 | { | |
1157 | ||
1158 | return (target_write_memory (addr, contents_cache, | |
1159 | sizeof (es1800_break_insn))); | |
1160 | } | |
1161 | ||
1162 | /* create_break_insn () | |
1163 | Primitive datastructures containing the es1800 breakpoint instruction */ | |
1164 | ||
1165 | static void | |
1166 | es1800_create_break_insn (ins, vec) | |
1167 | char *ins; | |
1168 | int vec; | |
1169 | { | |
1170 | if (vec == 15) | |
1171 | { | |
1172 | ins[0] = 0x4e; | |
1173 | ins[1] = 0x4f; | |
1174 | } | |
1175 | } | |
1176 | ||
1177 | ||
1178 | /* verify_break () | |
1179 | Seach for breakpoint routine in emulator memory. | |
1180 | returns non-zero on failure | |
1181 | vec - trap vector used for breakpoints */ | |
1182 | ||
1183 | static int | |
1184 | verify_break (vec) | |
1185 | int vec; | |
1186 | { | |
1187 | CORE_ADDR memaddress; | |
1188 | char buf[8]; | |
1189 | char *instr = "NqNqNqNs"; /* breakpoint routine */ | |
1190 | int status; | |
1191 | ||
1192 | get_break_addr (vec, &memaddress); | |
1193 | ||
1194 | if (memaddress) | |
1195 | { | |
1196 | status = target_read_memory (memaddress, buf, 8); | |
1197 | if (status != 0) | |
1198 | { | |
1199 | memory_error (status, memaddress); | |
1200 | } | |
1201 | return (STRCMP (instr, buf)); | |
1202 | } | |
1203 | return (-1); | |
1204 | } | |
1205 | ||
1206 | ||
1207 | /* get_break_addr () | |
1208 | find address of breakpint routine | |
1209 | vec - trap vector used for breakpoints | |
1210 | addrp - store the address here */ | |
1211 | ||
1212 | static void | |
1213 | get_break_addr (vec, addrp) | |
1214 | int vec; | |
1215 | CORE_ADDR *addrp; | |
1216 | { | |
1217 | CORE_ADDR memaddress = 0; | |
1218 | int status; | |
1219 | int k; | |
1220 | char buf[PBUFSIZ]; | |
1221 | char base_addr[4]; | |
1222 | char *p; | |
1223 | ||
1224 | if (m68020) | |
1225 | { | |
1226 | send_with_reply ("VBR ", buf, sizeof (buf)); | |
1227 | p = buf; | |
1228 | for (k = 0; k < 4; k++) | |
1229 | { | |
1230 | if ((p[k*2 + 1] == 0) || (p[k*2 + 2] == 0)) | |
1231 | { | |
1232 | error ("Emulator reply is too short: %s", buf); | |
1233 | } | |
1234 | base_addr[k] = (fromhex (p[k*2 + 1]) * 16) + fromhex (p[k*2 + 2]); | |
1235 | } | |
1236 | /* base addr of exception vector table */ | |
1237 | memaddress = *((CORE_ADDR *) base_addr); | |
1238 | } | |
1239 | ||
1240 | memaddress += (vec + 32) * 4; /* address of trap vector */ | |
1241 | status = target_read_memory (memaddress, (char *) addrp, 4); | |
1242 | if (status != 0) | |
1243 | { | |
1244 | memory_error (status, memaddress); | |
1245 | } | |
1246 | } | |
1247 | ||
1248 | ||
1249 | /* Kill an inferior process */ | |
1250 | ||
1251 | static void | |
1252 | es1800_kill () | |
1253 | { | |
1254 | if (inferior_pid != 0) | |
1255 | { | |
1256 | inferior_pid = 0; | |
1257 | es1800_mourn_inferior (); | |
1258 | } | |
1259 | } | |
1260 | ||
1261 | ||
1262 | /* Load a file to the ES1800 emulator. | |
1263 | Converts the file from a.out format into Extended Tekhex format | |
1264 | before the file is loaded. | |
1265 | Also loads the trap routine, and sets the ES1800 breakpoint on it | |
1266 | filename - the a.out to be loaded | |
1267 | from_tty - says whether to be verbose or not | |
1268 | FIXME Uses emulator overlay memory for trap routine */ | |
1269 | ||
1270 | static void | |
1271 | es1800_load (filename, from_tty) | |
1272 | char *filename; | |
1273 | int from_tty; | |
1274 | { | |
1275 | ||
1276 | FILE *instream; | |
1277 | char loadname[15]; | |
1278 | char buf[160]; | |
1279 | struct cleanup *old_chain; | |
1280 | int es1800_load_format = 5; | |
1281 | ||
3a479851 | 1282 | if (es1800_desc == NULL) |
91c87211 JK |
1283 | { |
1284 | printf ("No emulator attached, type emulator-command first\n"); | |
1285 | return; | |
1286 | } | |
1287 | ||
1288 | filename = tilde_expand (filename); | |
1289 | make_cleanup (free, filename); | |
1290 | ||
1291 | switch (es1800_load_format) | |
1292 | { | |
1293 | case 2: /* Extended Tekhex */ | |
1294 | if (from_tty) | |
1295 | { | |
1296 | printf ("Converting \"%s\" to Extended Tekhex Format\n", filename); | |
1297 | } | |
1298 | sprintf (buf, "tekhex %s", filename); | |
1299 | system (buf); | |
1300 | sprintf (loadname, "out.hex"); | |
1301 | break; | |
1302 | ||
1303 | case 5: /* Motorola S-rec */ | |
1304 | if (from_tty) | |
1305 | { | |
1306 | printf ("Converting \"%s\" to Motorola S-record format\n", | |
1307 | filename); | |
1308 | } | |
1309 | /* in the future the source code in copy (part of binutils-1.93) will | |
1310 | be included in this file */ | |
1311 | sprintf (buf, | |
1312 | "copy -s \"a.out-sunos-big\" -d \"srec\" %s /tmp/out.hex", | |
1313 | filename); | |
1314 | system (buf); | |
1315 | sprintf (loadname, "/tmp/out.hex"); | |
1316 | break; | |
1317 | ||
1318 | default: | |
1319 | error ("Downloading format not defined\n"); | |
1320 | } | |
1321 | ||
cf3e377e | 1322 | breakpoint_init_inferior (); |
91c87211 JK |
1323 | inferior_pid = 0; |
1324 | if (from_tty) | |
1325 | { | |
1326 | printf ("Downloading \"%s\" to the ES 1800\n",filename); | |
1327 | } | |
1328 | if ((instream = fopen (loadname, "r")) == NULL) | |
1329 | { | |
1330 | perror_with_name ("fopen:"); | |
1331 | } | |
1332 | ||
1333 | old_chain = make_cleanup (fclose, instream); | |
1334 | immediate_quit++; | |
1335 | ||
1336 | es1800_reset (0); | |
1337 | ||
1338 | download (instream, from_tty, es1800_load_format); | |
1339 | ||
1340 | /* if breakpoint routine is not present anymore we have to check | |
1341 | whether to download a new breakpoint routine or not */ | |
1342 | ||
1343 | if ((verify_break (es1800_break_vec) != 0) | |
1344 | && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? ")) | |
1345 | { | |
1346 | char buf[128]; | |
1347 | printf ("Using break vector 0x%x\n", es1800_break_vec); | |
1348 | sprintf (buf, "0x%x ", es1800_break_vec); | |
1349 | printf ("Give the start address of the breakpoint routine: "); | |
1350 | fgets (buf + strlen (buf), sizeof (buf) - strlen (buf), stdin); | |
1351 | es1800_init_break (buf, 0); | |
1352 | } | |
1353 | ||
1354 | do_cleanups (old_chain); | |
1355 | expect_prompt (); | |
1356 | readchar (); /* FIXME I am getting a ^G = 7 after the prompt */ | |
1357 | printf ("\n"); | |
1358 | ||
1359 | if (fclose (instream) == EOF) | |
1360 | { | |
1361 | ; | |
1362 | } | |
1363 | ||
1364 | if (es1800_load_format != 2) | |
1365 | { | |
1366 | sprintf (buf, "/usr/bin/rm %s", loadname); | |
1367 | system (buf); | |
1368 | } | |
1369 | ||
1370 | symbol_file_command (filename, from_tty); /* reading symbol table */ | |
1371 | immediate_quit--; | |
1372 | } | |
1373 | ||
1374 | #if 0 | |
1375 | ||
1376 | #define NUMCPYBYTES 20 | |
1377 | ||
1378 | static void | |
1379 | bfd_copy (from_bfd, to_bfd) | |
1380 | bfd *from_bfd; | |
1381 | bfd *to_bfd; | |
1382 | { | |
1383 | asection *p, *new; | |
1384 | int i; | |
1385 | char buf[NUMCPYBYTES]; | |
1386 | ||
1387 | for (p = from_bfd->sections; p != NULL; p = p->next) | |
1388 | { | |
1389 | printf (" Copying section %s. Size = %x.\n", p->name, p->_cooked_size); | |
1390 | printf (" vma = %x, offset = %x, output_sec = %x\n", | |
1391 | p->vma, p->output_offset, p->output_section); | |
1392 | new = bfd_make_section (to_bfd, p->name); | |
1393 | if (p->_cooked_size && | |
1394 | !bfd_set_section_size (to_bfd, new, p->_cooked_size)) | |
1395 | { | |
1396 | error ("Wrong BFD size!\n"); | |
1397 | } | |
1398 | if (!bfd_set_section_flags (to_bfd, new, p->flags)) | |
1399 | { | |
1400 | error ("bfd_set_section_flags"); | |
1401 | } | |
1402 | new->vma = p->vma; | |
1403 | ||
1404 | for (i = 0; (i + NUMCPYBYTES) < p->_cooked_size ; i += NUMCPYBYTES) | |
1405 | { | |
1406 | if (!bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i, | |
1407 | (bfd_size_type) NUMCPYBYTES)) | |
1408 | { | |
1409 | error ("bfd_get_section_contents\n"); | |
1410 | } | |
1411 | if (!bfd_set_section_contents (to_bfd, new, (PTR) buf, (file_ptr) i, | |
1412 | (bfd_size_type) NUMCPYBYTES)) | |
1413 | { | |
1414 | error ("bfd_set_section_contents\n"); | |
1415 | } | |
1416 | } | |
1417 | bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i, | |
1418 | (bfd_size_type) (p->_cooked_size - i)); | |
1419 | bfd_set_section_contents (to_bfd, new, (PTR) buf,(file_ptr) i, | |
1420 | (bfd_size_type) (p->_cooked_size - i)); | |
1421 | } | |
1422 | } | |
1423 | ||
1424 | #endif | |
1425 | ||
1426 | /* Start an process on the es1800 and set inferior_pid to the new | |
1427 | process' pid. | |
1428 | execfile - the file to run | |
1429 | args - arguments passed to the program | |
1430 | env - the environment vector to pass */ | |
1431 | ||
1432 | static void | |
1433 | es1800_create_inferior (execfile, args, env) | |
1434 | char *execfile; | |
1435 | char *args; | |
1436 | char **env; | |
1437 | { | |
1438 | int entry_pt; | |
1439 | int pid; | |
1440 | #if 0 | |
1441 | struct expression *expr; | |
1442 | register struct cleanup *old_chain = 0; | |
1443 | register value val; | |
1444 | #endif | |
1445 | ||
1446 | if (args && *args) | |
1447 | { | |
1448 | error ("Can't pass arguments to remote ES1800 process"); | |
1449 | } | |
1450 | ||
1451 | #if 0 | |
1452 | if (query ("Use 'start' as entry point? ")) | |
1453 | { | |
1454 | expr = parse_c_expression ("start"); | |
1455 | old_chain = make_cleanup (free_current_contents, &expr); | |
1456 | val = evaluate_expression (expr); | |
1457 | entry_pt = (val->location).address; | |
1458 | } | |
1459 | else | |
1460 | { | |
1461 | printf ("Enter the program's entry point (in hexadecimal): "); | |
1462 | scanf ("%x", &entry_pt); | |
1463 | } | |
1464 | #endif | |
1465 | ||
1466 | if (execfile == 0 || exec_bfd == 0) | |
1467 | { | |
1468 | error ("No exec file specified"); | |
1469 | } | |
1470 | ||
1471 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
1472 | ||
1473 | pid = 42; | |
1474 | ||
1475 | /* Now that we have a child process, make it our target. */ | |
1476 | ||
1477 | push_target (&es1800_child_ops); | |
1478 | ||
1479 | /* The "process" (board) is already stopped awaiting our commands, and | |
1480 | the program is already downloaded. We just set its PC and go. */ | |
1481 | ||
1482 | inferior_pid = pid; /* Needed for wait_for_inferior below */ | |
1483 | ||
1484 | clear_proceed_status (); | |
1485 | ||
1486 | /* Tell wait_for_inferior that we've started a new process. */ | |
1487 | ||
1488 | init_wait_for_inferior (); | |
1489 | ||
1490 | /* Set up the "saved terminal modes" of the inferior | |
1491 | based on what modes we are starting it with. */ | |
1492 | ||
1493 | target_terminal_init (); | |
1494 | ||
1495 | /* Install inferior's terminal modes. */ | |
1496 | ||
1497 | target_terminal_inferior (); | |
1498 | ||
1499 | /* remote_start (args); */ | |
1500 | /* trap_expected = 0; */ | |
1501 | /* insert_step_breakpoint (); FIXME, do we need this? */ | |
1502 | ||
45dc9be3 JK |
1503 | /* Let 'er rip... */ |
1504 | proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0); | |
91c87211 JK |
1505 | |
1506 | } | |
1507 | ||
1508 | ||
1509 | /* The process has died, clean up. */ | |
1510 | ||
1511 | static void | |
1512 | es1800_mourn_inferior () | |
1513 | { | |
1514 | remove_breakpoints (); | |
1515 | unpush_target (&es1800_child_ops); | |
1516 | generic_mourn_inferior (); /* Do all the proper things now */ | |
1517 | } | |
1518 | ||
1519 | /* ES1800-protocol specific routines */ | |
1520 | ||
1521 | /* Keep discarding input from the remote system, until STRING is found. | |
1522 | Let the user break out immediately. | |
1523 | string - the string to expect | |
1524 | nowait - break out if string not the emulator's first respond otherwise | |
1525 | read until string is found (== 0) */ | |
1526 | ||
1527 | static void | |
1528 | expect (string, nowait) | |
1529 | char *string; | |
1530 | int nowait; | |
1531 | { | |
1532 | char c; | |
1533 | char *p = string; | |
1534 | ||
1535 | immediate_quit++; | |
1536 | while (1) | |
1537 | { | |
1538 | c = readchar (); | |
1539 | if (isalpha (c)) | |
1540 | { | |
1541 | c = toupper (c); | |
1542 | } | |
1543 | if (c == toupper (*p)) | |
1544 | { | |
1545 | p++; | |
1546 | if (*p == '\0') | |
1547 | { | |
1548 | immediate_quit--; | |
1549 | return; | |
1550 | } | |
1551 | } | |
1552 | else if (!nowait) | |
1553 | { | |
1554 | p = string; | |
1555 | } | |
1556 | else | |
1557 | { | |
1558 | printf ("\'%s\' expected\n" , string); | |
1559 | printf ("char %d is %d", p - string, c); | |
1560 | error ("\n" ); | |
1561 | } | |
1562 | } | |
1563 | } | |
1564 | ||
1565 | /* Keep discarding input until we see the prompt. */ | |
1566 | ||
1567 | static void | |
1568 | expect_prompt () | |
1569 | { | |
1570 | expect (">", 0); | |
1571 | } | |
1572 | ||
1573 | ||
1574 | /* Read one character */ | |
1575 | ||
1576 | #ifdef DEBUG_STDIN | |
1577 | ||
1578 | /* read from stdin */ | |
1579 | ||
1580 | static int | |
1581 | readchar () | |
1582 | { | |
1583 | char buf[1]; | |
1584 | ||
1585 | buf[0] = '\0'; | |
1586 | printf ("readchar, give one character\n"); | |
1587 | read (0, buf, 1); | |
1588 | ||
1589 | #if defined (LOG_FILE) | |
1590 | putc (buf[0] & 0x7f, log_file); | |
1591 | #endif | |
1592 | ||
1593 | return (buf[0] & 0x7f); | |
1594 | } | |
1595 | ||
1596 | #else /* !DEBUG_STDIN */ | |
1597 | ||
1598 | /* Read a character from the remote system, doing all the fancy | |
1599 | timeout stuff. */ | |
1600 | ||
1601 | static int | |
1602 | readchar () | |
1603 | { | |
3a479851 | 1604 | int ch; |
91c87211 | 1605 | |
3a479851 | 1606 | ch = SERIAL_READCHAR (es1800_desc, timeout); |
91c87211 | 1607 | |
3a479851 JK |
1608 | /* FIXME: doing an error() here will probably cause trouble, at least if from |
1609 | es1800_wait. */ | |
1610 | if (ch == SERIAL_TIMEOUT) | |
1611 | error ("Timeout reading from remote system."); | |
1612 | else if (ch == SERIAL_ERROR) | |
1613 | perror_with_name ("remote read"); | |
91c87211 JK |
1614 | |
1615 | #if defined (LOG_FILE) | |
3a479851 | 1616 | putc (ch & 0x7f, log_file); |
91c87211 JK |
1617 | fflush (log_file); |
1618 | #endif | |
1619 | ||
3a479851 | 1620 | return (ch); |
91c87211 JK |
1621 | } |
1622 | ||
1623 | #endif /* DEBUG_STDIN */ | |
1624 | ||
1625 | ||
1626 | /* Send a command to the emulator and save the reply. | |
1627 | Report an error if we get an error reply. | |
1628 | string - the es1800 command | |
1629 | buf - containing the emulator reply on return | |
1630 | len - size of buf */ | |
1631 | ||
1632 | static void | |
1633 | send_with_reply (string, buf, len) | |
1634 | char *string, *buf; | |
1635 | int len; | |
1636 | { | |
1637 | send (string); | |
3a479851 | 1638 | SERIAL_WRITE (es1800_desc, "\r", 1); |
91c87211 JK |
1639 | |
1640 | #ifndef DEBUG_STDIN | |
1641 | expect (string, 1); | |
1642 | expect ("\r\n", 0); | |
1643 | #endif | |
1644 | ||
1645 | getmessage (buf, len); | |
1646 | } | |
1647 | ||
1648 | ||
1649 | /* Send the command in STR to the emulator adding \r. check | |
1650 | the echo for consistency. | |
1651 | string - the es1800 command */ | |
1652 | ||
1653 | static void | |
1654 | send_command (string) | |
1655 | char *string; | |
1656 | { | |
1657 | send (string); | |
3a479851 | 1658 | SERIAL_WRITE (es1800_desc, "\r", 1); |
91c87211 JK |
1659 | |
1660 | #ifndef DEBUG_STDIN | |
1661 | expect (string, 0); | |
1662 | expect_prompt (); | |
1663 | #endif | |
1664 | ||
1665 | } | |
1666 | ||
1667 | /* Send a string | |
1668 | string - the es1800 command */ | |
1669 | ||
1670 | static void | |
1671 | send (string) | |
1672 | char *string; | |
1673 | { | |
1674 | if (kiodebug) | |
1675 | { | |
1676 | fprintf (stderr, "Sending: %s\n", string); | |
1677 | } | |
3a479851 | 1678 | SERIAL_WRITE (es1800_desc, string, strlen (string)); |
91c87211 JK |
1679 | } |
1680 | ||
1681 | ||
1682 | /* Read a message from the emulator and store it in BUF. | |
1683 | buf - containing the emulator reply on return | |
1684 | len - size of buf */ | |
1685 | ||
1686 | static void | |
1687 | getmessage (buf, len) | |
1688 | char *buf; | |
1689 | int len; | |
1690 | { | |
1691 | char *bp; | |
1692 | int c; | |
1693 | int prompt_found = 0; | |
1694 | extern kiodebug; | |
1695 | ||
1696 | #if defined (LOG_FILE) | |
1697 | /* This is a convenient place to do this. The idea is to do it often | |
1698 | enough that we never lose much data if we terminate abnormally. */ | |
1699 | fflush (log_file); | |
1700 | #endif | |
1701 | ||
1702 | bp = buf; | |
1703 | c = readchar (); | |
1704 | do | |
1705 | { | |
1706 | if (c) | |
1707 | { | |
1708 | if (len-- < 2) /* char and terminaling NULL */ | |
1709 | { | |
1710 | error ("input buffer overrun\n"); | |
1711 | } | |
1712 | *bp++ = c; | |
1713 | } | |
1714 | c = readchar (); | |
1715 | if ((c == '>') && (*(bp - 1) == ' ')) | |
1716 | { | |
1717 | prompt_found = 1; | |
1718 | } | |
1719 | } | |
1720 | while (!prompt_found); | |
1721 | *bp = 0; | |
1722 | ||
1723 | if (kiodebug) | |
1724 | { | |
1725 | fprintf (stderr,"message received :%s\n", buf); | |
1726 | } | |
1727 | } | |
1728 | ||
1729 | static void | |
1730 | download (instream, from_tty, format) | |
1731 | FILE *instream; | |
1732 | int from_tty; | |
1733 | int format; | |
1734 | { | |
1735 | char c; | |
1736 | char buf[160]; | |
1737 | int i = 0; | |
1738 | ||
1739 | send_command ("SET #2,$1A"); /* reset char = ^Z */ | |
1740 | send_command ("SET #3,$11,$13"); /* XON XOFF */ | |
1741 | if (format == 2) | |
1742 | { | |
1743 | send_command ("SET #26,#2"); | |
1744 | } | |
1745 | else | |
1746 | { | |
1747 | send_command ("SET #26,#5"); /* Format=Extended Tekhex */ | |
1748 | } | |
1749 | send_command ("DFB = $10"); | |
1750 | send_command ("PUR"); | |
1751 | send_command ("CES"); | |
1752 | send ("DNL\r"); | |
1753 | expect ("DNL", 1); | |
1754 | if (from_tty) | |
1755 | { | |
1756 | printf (" 0 records loaded...\r"); | |
1757 | } | |
1758 | while (fgets (buf, 160, instream)) | |
1759 | { | |
1760 | send (buf); | |
1761 | if (from_tty) | |
1762 | { | |
1763 | printf ("%5d\b\b\b\b\b",++i); | |
1764 | fflush (stdout); | |
1765 | } | |
1766 | if ((c = readchar ()) != 006) | |
1767 | { | |
1768 | error ("expected ACK"); | |
1769 | } | |
1770 | } | |
1771 | if (from_tty) | |
1772 | { | |
1773 | printf ("- All"); | |
1774 | } | |
1775 | } | |
1776 | ||
1777 | /* Additional commands */ | |
1778 | ||
3a479851 JK |
1779 | #if defined (TIOCGETP) && defined (FNDELAY) && defined (EWOULDBLOCK) |
1780 | #define PROVIDE_TRANSPARENT | |
1781 | #endif | |
1782 | ||
1783 | #ifdef PROVIDE_TRANSPARENT | |
91c87211 JK |
1784 | /* Talk directly to the emulator |
1785 | FIXME, uses busy wait, and is SUNOS (or at least BSD) specific */ | |
1786 | ||
1787 | /*ARGSUSED*/ | |
1788 | static void | |
1789 | es1800_transparent (args, from_tty) | |
1790 | char *args; | |
1791 | int from_tty; | |
1792 | { | |
1793 | int console; | |
1794 | struct sgttyb modebl; | |
1795 | int fcflag; | |
1796 | int cc; | |
1797 | struct sgttyb console_mode_save; | |
1798 | int console_fc_save; | |
1799 | int es1800_fc_save; | |
1800 | int inputcnt = 80; | |
1801 | char inputbuf[80]; | |
1802 | int consolecnt = 0; | |
1803 | char consolebuf[80]; | |
1804 | int es1800_cnt = 0; | |
1805 | char es1800_buf[80]; | |
1806 | int i; | |
1807 | ||
1808 | dont_repeat (); | |
3a479851 | 1809 | if (es1800_desc == NULL) |
91c87211 JK |
1810 | { |
1811 | printf ("No emulator attached, type emulator-command first\n"); | |
1812 | return; | |
1813 | } | |
1814 | ||
1815 | printf ("\n"); | |
1816 | printf ("You are now communicating directly with the ES 1800 emulator.\n"); | |
1817 | printf ("To leave this mode (transparent mode), press ^E.\n"); | |
1818 | printf ("\n"); | |
1819 | printf (" >"); | |
1820 | fflush (stdout); | |
1821 | ||
1822 | if ((console = open ("/dev/tty", O_RDWR)) == -1) | |
1823 | { | |
1824 | perror_with_name ("/dev/tty:"); | |
1825 | } | |
1826 | ||
1827 | if ((fcflag = fcntl (console, F_GETFL, 0)) == -1) | |
1828 | { | |
1829 | perror_with_name ("fcntl console"); | |
1830 | } | |
1831 | ||
1832 | console_fc_save = fcflag; | |
1833 | fcflag = fcflag | FNDELAY; | |
1834 | ||
1835 | if (fcntl (console, F_SETFL, fcflag) == -1) | |
1836 | { | |
1837 | perror_with_name ("fcntl console"); | |
1838 | } | |
1839 | ||
1840 | if (ioctl (console, TIOCGETP, &modebl)) | |
1841 | { | |
1842 | perror_with_name ("ioctl console"); | |
1843 | } | |
1844 | ||
1845 | console_mode_save = modebl; | |
1846 | modebl.sg_flags = RAW; | |
1847 | ||
1848 | if (ioctl (console, TIOCSETP, &modebl)) | |
1849 | { | |
1850 | perror_with_name ("ioctl console"); | |
1851 | } | |
1852 | ||
3a479851 | 1853 | if ((fcflag = fcntl (es1800_desc->fd, F_GETFL, 0)) == -1) |
91c87211 JK |
1854 | { |
1855 | perror_with_name ("fcntl serial"); | |
1856 | } | |
1857 | ||
1858 | es1800_fc_save = fcflag; | |
1859 | fcflag = fcflag | FNDELAY; | |
1860 | ||
3a479851 | 1861 | if (fcntl (es1800_desc->fd, F_SETFL, fcflag) == -1) |
91c87211 JK |
1862 | { |
1863 | perror_with_name ("fcntl serial"); | |
1864 | } | |
1865 | ||
1866 | while (1) | |
1867 | { | |
1868 | cc = read (console, inputbuf, inputcnt); | |
1869 | if (cc != -1) | |
1870 | { | |
1871 | if ((*inputbuf & 0x7f) == 0x05) | |
1872 | { | |
1873 | break; | |
1874 | } | |
1875 | for (i = 0; i < cc; ) | |
1876 | { | |
1877 | es1800_buf[es1800_cnt++] = inputbuf[i++]; | |
1878 | } | |
3a479851 | 1879 | if ((cc = SERIAL_WRITE (es1800_desc, es1800_buf, es1800_cnt)) == -1) |
91c87211 | 1880 | { |
3a479851 | 1881 | perror_with_name ("FEL! write:"); |
91c87211 JK |
1882 | } |
1883 | es1800_cnt -= cc; | |
1884 | if (es1800_cnt && cc) | |
1885 | { | |
1886 | for (i = 0; i < es1800_cnt; i++) | |
1887 | { | |
1888 | es1800_buf[i] = es1800_buf[cc+i]; | |
1889 | } | |
1890 | } | |
1891 | } | |
1892 | else if (errno != EWOULDBLOCK) | |
1893 | { | |
1894 | perror_with_name ("FEL! read:"); | |
1895 | } | |
1896 | ||
3a479851 | 1897 | cc = read (es1800_desc->fd,inputbuf,inputcnt); |
91c87211 JK |
1898 | if (cc != -1) |
1899 | { | |
1900 | for (i = 0; i < cc; ) | |
1901 | { | |
1902 | consolebuf[consolecnt++] = inputbuf[i++]; | |
1903 | } | |
1904 | if ((cc = write (console,consolebuf,consolecnt)) == -1) | |
1905 | { | |
1906 | perror_with_name ("FEL! write:"); | |
1907 | } | |
1908 | consolecnt -= cc; | |
1909 | if (consolecnt && cc) | |
1910 | { | |
1911 | for (i = 0; i < consolecnt; i++) | |
1912 | { | |
1913 | consolebuf[i] = consolebuf[cc+i]; | |
1914 | } | |
1915 | } | |
1916 | } | |
1917 | else if (errno != EWOULDBLOCK) | |
1918 | { | |
1919 | perror_with_name ("FEL! read:"); | |
1920 | } | |
1921 | } | |
1922 | ||
1923 | console_fc_save = console_fc_save & !FNDELAY; | |
1924 | if (fcntl (console, F_SETFL, console_fc_save) == -1) | |
1925 | { | |
1926 | perror_with_name ("FEL! fcntl"); | |
1927 | } | |
1928 | ||
1929 | if (ioctl (console, TIOCSETP, &console_mode_save)) | |
1930 | { | |
1931 | perror_with_name ("FEL! ioctl"); | |
1932 | } | |
1933 | ||
1934 | close (console); | |
1935 | ||
3a479851 | 1936 | if (fcntl (es1800_desc->fd, F_SETFL, es1800_fc_save) == -1) |
91c87211 JK |
1937 | { |
1938 | perror_with_name ("FEL! fcntl"); | |
1939 | } | |
1940 | ||
1941 | printf ("\n"); | |
1942 | ||
1943 | } | |
3a479851 | 1944 | #endif /* PROVIDE_TRANSPARENT */ |
91c87211 JK |
1945 | |
1946 | static void | |
1947 | es1800_init_break (args, from_tty) | |
1948 | char *args; | |
1949 | int from_tty; | |
1950 | { | |
1951 | CORE_ADDR memaddress = 0; | |
1952 | char buf[PBUFSIZ]; | |
1953 | char base_addr[4]; | |
1954 | char *space_index; | |
1955 | char *p; | |
1956 | int k; | |
1957 | ||
1958 | if (args == NULL) | |
1959 | { | |
1960 | error_no_arg ("a trap vector"); | |
1961 | } | |
1962 | ||
1963 | if (!(space_index = strchr (args, ' '))) | |
1964 | { | |
1965 | error ("Two arguments needed (trap vector and address of break routine).\n"); | |
1966 | } | |
1967 | ||
1968 | *space_index = '\0'; | |
1969 | ||
1970 | es1800_break_vec = strtol (args, (char **) NULL, 0); | |
1971 | es1800_break_address = parse_and_eval_address (space_index + 1); | |
1972 | ||
1973 | es1800_create_break_insn (es1800_break_insn, es1800_break_vec); | |
1974 | ||
1975 | if (m68020) | |
1976 | { | |
1977 | send_with_reply ("VBR ", buf, sizeof (buf)); | |
1978 | p = buf; | |
1979 | for (k = 0; k < 4; k++) | |
1980 | { | |
1981 | if ((p[k*2 + 1] == 0) || (p[k*2 + 2] == 0)) | |
1982 | { | |
1983 | error ("Emulator reply is too short: %s", buf); | |
1984 | } | |
1985 | base_addr[k] = (fromhex (p[k*2 + 1]) * 16) + fromhex (p[k*2 + 2]); | |
1986 | } | |
1987 | /* base addr of exception vector table */ | |
1988 | memaddress = *((CORE_ADDR *) base_addr); | |
1989 | } | |
1990 | ||
1991 | memaddress += (es1800_break_vec + 32) * 4; /* address of trap vector */ | |
1992 | ||
1993 | sprintf (buf, "@.L%lx=$%lx", memaddress, es1800_break_address); | |
1994 | send_command (buf); /* set the address of the break routine in the */ | |
1995 | /* trap vector */ | |
1996 | ||
1997 | sprintf (buf, "@.L%lx=$4E714E71", es1800_break_address); /* NOP; NOP */ | |
1998 | send_command (buf); | |
1999 | sprintf (buf, "@.L%lx=$4E714E73", es1800_break_address + 4); /* NOP; RTE */ | |
2000 | send_command (buf); | |
2001 | ||
2002 | sprintf (buf, "AC2=$%lx", es1800_break_address + 4); | |
2003 | /* breakpoint at es1800-break_address */ | |
2004 | send_command (buf); | |
2005 | send_command ("WHEN AC2 THEN BRK"); /* ie in exception routine */ | |
2006 | ||
2007 | if (from_tty) | |
2008 | { | |
2009 | printf ("Breakpoint (trap $%x) routine at address: %lx\n", | |
2010 | es1800_break_vec, es1800_break_address); | |
2011 | } | |
2012 | } | |
2013 | ||
2014 | static void | |
2015 | es1800_child_open (arg, from_tty) | |
2016 | char *arg; | |
2017 | int from_tty; | |
2018 | { | |
2019 | error ("Use the \"run\" command to start a child process."); | |
2020 | } | |
2021 | ||
2022 | static void | |
2023 | es1800_child_detach (args, from_tty) | |
2024 | char *args; | |
2025 | int from_tty; | |
2026 | { | |
2027 | if (args) | |
2028 | { | |
2029 | error ("Argument given to \"detach\" when remotely debugging."); | |
2030 | } | |
2031 | ||
2032 | pop_target (); | |
2033 | if (from_tty) | |
2034 | { | |
2035 | printf ("Ending debugging the process %d.\n", inferior_pid); | |
2036 | } | |
2037 | } | |
2038 | ||
2039 | ||
2040 | /* Define the target subroutine names */ | |
2041 | ||
2042 | static struct target_ops es1800_ops = | |
2043 | { | |
2044 | "es1800", /* to_shortname */ | |
2045 | /* to_longname */ | |
2046 | "Remote serial target in ES1800-emulator protocol", | |
2047 | /* to_doc */ | |
2048 | "Remote debugging on the es1800 emulator via a serial line.\n\ | |
2049 | Specify the serial device it is connected to (e.g. /dev/ttya).", | |
2050 | es1800_open, /* to_open */ | |
2051 | es1800_close, /* to_close */ | |
2052 | es1800_attach, /* to_attach */ | |
2053 | es1800_detach, /* to_detach */ | |
2054 | es1800_resume, /* to_resume */ | |
2055 | NULL, /* to_wait */ | |
2056 | NULL, /* to_fetch_registers */ | |
2057 | NULL, /* to_store_registers */ | |
2058 | es1800_prepare_to_store, /* to_prepare_to_store */ | |
2059 | es1800_xfer_inferior_memory, /* to_xfer_memory */ | |
2060 | es1800_files_info, /* to_files_info */ | |
2061 | es1800_insert_breakpoint, /* to_insert_breakpoint */ | |
2062 | es1800_remove_breakpoint, /* to_remove_breakpoint */ | |
2063 | NULL, /* to_terminal_init */ | |
2064 | NULL, /* to_terminal_inferior */ | |
2065 | NULL, /* to_terminal_ours_for_output */ | |
2066 | NULL, /* to_terminal_ours */ | |
2067 | NULL, /* to_terminal_info */ | |
2068 | NULL, /* to_kill */ | |
2069 | es1800_load, /* to_load */ | |
2070 | NULL, /* to_lookup_symbol */ | |
2071 | es1800_create_inferior, /* to_create_inferior */ | |
2072 | NULL, /* to_mourn_inferior */ | |
2073 | 0, /* to_can_run */ | |
2074 | 0, /* notice_signals */ | |
2075 | core_stratum, /* to_stratum */ | |
2076 | 0, /* to_next */ | |
2077 | 0, /* to_has_all_memory */ | |
2078 | 1, /* to_has_memory */ | |
2079 | 0, /* to_has_stack */ | |
2080 | 0, /* to_has_registers */ | |
2081 | 0, /* to_has_execution */ | |
2082 | NULL, /* to_sections */ | |
2083 | NULL, /* to_sections_end */ | |
2084 | OPS_MAGIC /* to_magic (always last) */ | |
2085 | }; | |
2086 | ||
2087 | /* Define the target subroutine names */ | |
2088 | ||
2089 | static struct target_ops es1800_child_ops = | |
2090 | { | |
2091 | "es1800_process", /* to_shortname */ | |
2092 | /* to_longname */ | |
2093 | "Remote serial target in ES1800-emulator protocol", | |
2094 | /* to_doc */ | |
2095 | "Remote debugging on the es1800 emulator via a serial line.\n\ | |
2096 | Specify the serial device it is connected to (e.g. /dev/ttya).", | |
2097 | es1800_child_open, /* to_open */ | |
2098 | NULL, /* to_close */ | |
2099 | es1800_attach, /* to_attach */ | |
2100 | es1800_child_detach, /* to_detach */ | |
2101 | es1800_resume, /* to_resume */ | |
2102 | es1800_wait, /* to_wait */ | |
2103 | es1800_fetch_register, /* to_fetch_registers */ | |
2104 | es1800_store_register, /* to_store_registers */ | |
2105 | es1800_prepare_to_store, /* to_prepare_to_store */ | |
2106 | es1800_xfer_inferior_memory, /* to_xfer_memory */ | |
2107 | es1800_files_info, /* to_files_info */ | |
2108 | es1800_insert_breakpoint, /* to_insert_breakpoint */ | |
2109 | es1800_remove_breakpoint, /* to_remove_breakpoint */ | |
2110 | NULL, /* to_terminal_init */ | |
2111 | NULL, /* to_terminal_inferior */ | |
2112 | NULL, /* to_terminal_ours_for_output */ | |
2113 | NULL, /* to_terminal_ours */ | |
2114 | NULL, /* to_terminal_info */ | |
2115 | es1800_kill, /* to_kill */ | |
2116 | es1800_load, /* to_load */ | |
2117 | NULL, /* to_lookup_symbol */ | |
2118 | es1800_create_inferior, /* to_create_inferior */ | |
2119 | es1800_mourn_inferior, /* to_mourn_inferior */ | |
2120 | 0, /* to_can_run */ | |
2121 | 0, /* notice_signals */ | |
2122 | process_stratum, /* to_stratum */ | |
2123 | 0, /* to_next */ | |
2124 | 1, /* to_has_all_memory */ | |
2125 | 1, /* to_has_memory */ | |
2126 | 1, /* to_has_stack */ | |
2127 | 1, /* to_has_registers */ | |
2128 | 1, /* to_has_execution */ | |
2129 | NULL, /* to_sections */ | |
2130 | NULL, /* to_sections_end */ | |
2131 | OPS_MAGIC /* to_magic (always last) */ | |
2132 | }; | |
2133 | ||
91c87211 JK |
2134 | void |
2135 | _initialize_es1800 () | |
2136 | { | |
2137 | add_target (&es1800_ops); | |
2138 | add_target (&es1800_child_ops); | |
3a479851 | 2139 | #ifdef PROVIDE_TRANSPARENT |
91c87211 JK |
2140 | add_com ("transparent", class_support, es1800_transparent, |
2141 | "Start transparent communication with the ES 1800 emulator."); | |
3a479851 | 2142 | #endif /* PROVIDE_TRANSPARENT */ |
91c87211 JK |
2143 | add_com ("init_break", class_support, es1800_init_break, |
2144 | "Download break routine and initialize break facility on ES 1800"); | |
2145 | } |