Commit | Line | Data |
---|---|---|
c906108c SS |
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 | ||
c5aa993b | 10 | This file is part of GDB. |
c906108c | 11 | |
c5aa993b JM |
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. | |
c906108c | 16 | |
c5aa993b JM |
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. | |
c906108c | 21 | |
c5aa993b JM |
22 | You should have received a copy of the GNU General Public License |
23 | along with this program; if not, write to the Free Software | |
24 | Foundation, Inc., 59 Temple Place - Suite 330, | |
25 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
26 | |
27 | ||
28 | /* Emulator communication protocol. | |
29 | All values are encoded in ascii hex digits. | |
30 | ||
c5aa993b JM |
31 | Request |
32 | Command | |
33 | Reply | |
34 | read registers: | |
35 | DR<cr> | |
36 | - 0 - - 1 - - 2 - - 3 - - 4 - - 5 - -- 6 - - 7 - | |
37 | D = XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX | |
38 | A = XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX | |
39 | PC = XXXXXX SSP = XXXXXX USP = XXXXXX SR = XXXXXXXX | |
40 | > | |
41 | Each byte of register data is described by two hex digits. | |
42 | ||
43 | write regs | |
44 | D0=XXXXXXXX<cr> | |
45 | >D1=XXXXXXXX<cr> | |
46 | >D2=XXXXXXXX<cr> | |
47 | >D3=XXXXXXXX<cr> | |
48 | >D4=XXXXXXXX<cr> | |
49 | >D5=XXXXXXXX<cr> | |
50 | >D6=XXXXXXXX<cr> | |
51 | >D7=XXXXXXXX<cr> | |
52 | >A0=XXXXXXXX<cr> | |
53 | >A1=XXXXXXXX<cr> | |
54 | >A2=XXXXXXXX<cr> | |
55 | >A3=XXXXXXXX<cr> | |
56 | >A4=XXXXXXXX<cr> | |
57 | >A5=XXXXXXXX<cr> | |
58 | >A6=XXXXXXXX<cr> | |
59 | >A7=XXXXXXXX<cr> | |
60 | >SR=XXXXXXXX<cr> | |
61 | >PC=XXXXXX<cr> | |
62 | > | |
63 | Each byte of register data is described by two hex digits. | |
64 | ||
65 | read mem | |
66 | @.BAA..AA | |
67 | $FFFFFFXX | |
68 | > | |
69 | AA..AA is address, XXXXXXX is the contents | |
70 | ||
71 | write mem | |
72 | @.BAA..AA=$XXXXXXXX | |
73 | > | |
74 | AA..AA is address, XXXXXXXX is data | |
75 | ||
76 | cont | |
77 | PC=$AA..AA | |
78 | >RBK | |
79 | R> | |
80 | AA..AA is address to resume. If AA..AA is omitted, resume at same address. | |
81 | ||
82 | step | |
83 | PC=$AA..AA | |
84 | >STP | |
85 | R> | |
86 | AA..AA is address to resume. If AA..AA is omitted, resume at same address. | |
87 | ||
88 | kill req | |
89 | STP | |
90 | > | |
91 | */ | |
c906108c SS |
92 | |
93 | ||
94 | #include <stdio.h> | |
95 | #include <signal.h> | |
96 | #include <sys/ioctl.h> | |
97 | #include <sys/file.h> | |
98 | #include <errno.h> | |
99 | #include <ctype.h> | |
100 | #include <setjmp.h> | |
101 | #include <fcntl.h> | |
102 | #include "defs.h" | |
103 | #include "gdb_string.h" | |
104 | #include "frame.h" | |
105 | #include "inferior.h" | |
106 | #include "target.h" | |
107 | #include "wait.h" | |
108 | #include "command.h" | |
109 | #include "remote-utils.h" | |
110 | #include "gdbcore.h" | |
111 | #include "serial.h" | |
112 | ||
113 | /* Prototypes for local functions */ | |
114 | ||
115 | static void | |
116 | es1800_child_detach PARAMS ((char *, int)); | |
117 | ||
118 | static void | |
119 | es1800_child_open PARAMS ((char *, int)); | |
120 | ||
c5aa993b | 121 | static void |
c906108c SS |
122 | es1800_transparent PARAMS ((char *, int)); |
123 | ||
124 | static void | |
125 | es1800_create_inferior PARAMS ((char *, char *, char **)); | |
126 | ||
127 | static void | |
128 | es1800_load PARAMS ((char *, int)); | |
129 | ||
130 | static void | |
131 | es1800_kill PARAMS ((void)); | |
132 | ||
133 | static int | |
134 | verify_break PARAMS ((int)); | |
135 | ||
136 | static int | |
137 | es1800_remove_breakpoint PARAMS ((CORE_ADDR, char *)); | |
138 | ||
139 | static int | |
140 | es1800_insert_breakpoint PARAMS ((CORE_ADDR, char *)); | |
141 | ||
142 | static void | |
143 | es1800_files_info PARAMS ((struct target_ops *)); | |
144 | ||
145 | static int | |
146 | es1800_xfer_inferior_memory PARAMS ((CORE_ADDR, char *, int, int, | |
147 | struct target_ops *)); | |
148 | ||
c5aa993b | 149 | static void |
c906108c SS |
150 | es1800_prepare_to_store PARAMS ((void)); |
151 | ||
152 | static int es1800_wait PARAMS ((int, struct target_waitstatus *)); | |
153 | ||
154 | static void es1800_resume PARAMS ((int, int, enum target_signal)); | |
155 | ||
156 | static void | |
157 | es1800_detach PARAMS ((char *, int)); | |
158 | ||
159 | static void | |
160 | es1800_attach PARAMS ((char *, int)); | |
161 | ||
162 | static int | |
163 | damn_b PARAMS ((char *)); | |
164 | ||
165 | static void | |
166 | es1800_open PARAMS ((char *, int)); | |
167 | ||
168 | static void | |
169 | es1800_timer PARAMS ((void)); | |
170 | ||
171 | static void | |
172 | es1800_reset PARAMS ((char *)); | |
173 | ||
174 | static void | |
175 | es1800_request_quit PARAMS ((void)); | |
176 | ||
177 | static int | |
178 | readchar PARAMS ((void)); | |
179 | ||
180 | static void | |
181 | expect PARAMS ((char *, int)); | |
182 | ||
183 | static void | |
184 | expect_prompt PARAMS ((void)); | |
185 | ||
186 | static void | |
187 | download PARAMS ((FILE *, int, int)); | |
188 | ||
189 | #if 0 | |
190 | static void | |
191 | bfd_copy PARAMS ((bfd *, bfd *)); | |
192 | #endif | |
193 | ||
194 | static void | |
195 | get_break_addr PARAMS ((int, CORE_ADDR *)); | |
196 | ||
197 | static int | |
198 | fromhex PARAMS ((int)); | |
199 | ||
200 | static int | |
201 | tohex PARAMS ((int)); | |
202 | ||
203 | static void | |
204 | es1800_close PARAMS ((int)); | |
205 | ||
206 | static void | |
207 | es1800_fetch_registers PARAMS ((void)); | |
208 | ||
209 | static void | |
210 | es1800_fetch_register PARAMS ((int)); | |
211 | ||
212 | static void | |
213 | es1800_store_register PARAMS ((int)); | |
214 | ||
215 | static void | |
216 | es1800_read_bytes PARAMS ((CORE_ADDR, char *, int)); | |
217 | ||
218 | static void | |
219 | es1800_write_bytes PARAMS ((CORE_ADDR, char *, int)); | |
220 | ||
221 | static void | |
222 | send_with_reply PARAMS ((char *, char *, int)); | |
223 | ||
224 | static void | |
225 | send_command PARAMS ((char *)); | |
226 | ||
227 | static void | |
228 | send PARAMS ((char *)); | |
229 | ||
230 | static void | |
231 | getmessage PARAMS ((char *, int)); | |
232 | ||
233 | static void | |
234 | es1800_mourn_inferior PARAMS ((void)); | |
235 | ||
236 | static void | |
237 | es1800_create_break_insn PARAMS ((char *, int)); | |
238 | ||
239 | static void | |
240 | es1800_init_break PARAMS ((char *, int)); | |
241 | ||
242 | /* Local variables */ | |
243 | ||
244 | /* FIXME: Convert this to use "set remotedebug" instead. */ | |
245 | #define LOG_FILE "es1800.log" | |
246 | #if defined (LOG_FILE) | |
247 | static FILE *log_file; | |
248 | #endif | |
249 | ||
c5aa993b | 250 | extern struct target_ops es1800_ops; /* Forward decl */ |
c906108c SS |
251 | extern struct target_ops es1800_child_ops; /* Forward decl */ |
252 | ||
253 | static int kiodebug; | |
c5aa993b JM |
254 | static int timeout = 100; |
255 | static char *savename; /* Name of i/o device used */ | |
c906108c | 256 | static serial_ttystate es1800_saved_ttystate; |
c5aa993b | 257 | static int es1800_fc_save; /* Save fcntl state */ |
c906108c SS |
258 | |
259 | /* indicates that the emulator uses 32-bit data-adress (68020-mode) | |
260 | instead of 24-bit (68000 -mode) */ | |
261 | ||
262 | static int m68020; | |
263 | ||
264 | #define MODE (m68020 ? "M68020" : "M68000" ) | |
265 | #define ES1800_BREAK_VEC (0xf) | |
266 | ||
267 | /* Descriptor for I/O to remote machine. Initialize it to NULL so that | |
268 | es1800_open knows that we don't have a file open when the program | |
269 | starts. */ | |
270 | ||
271 | static serial_t es1800_desc = NULL; | |
272 | ||
273 | #define PBUFSIZ 1000 | |
274 | #define HDRLEN sizeof("@.BAAAAAAAA=$VV\r") | |
275 | ||
276 | /* Maximum number of bytes to read/write at once. The value here | |
277 | is chosen to fill up a packet. */ | |
278 | ||
279 | #define MAXBUFBYTES ((PBUFSIZ-150)*16/75 ) | |
280 | ||
281 | static int es1800_break_vec = 0; | |
282 | static char es1800_break_insn[2]; | |
283 | static long es1800_break_address; | |
c5aa993b | 284 | static void (*old_sigint) (); /* Old signal-handler for sigint */ |
c906108c SS |
285 | static jmp_buf interrupt; |
286 | ||
287 | /* Local signalhandler to allow breaking tranfers or program run. | |
288 | Rely on global variables: old_sigint(), interrupt */ | |
289 | ||
290 | static void | |
291 | es1800_request_quit () | |
292 | { | |
293 | /* restore original signalhandler */ | |
294 | signal (SIGINT, old_sigint); | |
295 | longjmp (interrupt, 1); | |
296 | } | |
297 | ||
298 | ||
299 | /* Reset emulator. | |
300 | Sending reset character(octal 32) to emulator. | |
c5aa993b | 301 | quit - return to '(esgdb)' prompt or continue */ |
c906108c SS |
302 | |
303 | static void | |
304 | es1800_reset (quit) | |
305 | char *quit; | |
306 | { | |
307 | char buf[80]; | |
308 | ||
309 | if (quit) | |
310 | { | |
311 | printf ("\nResetting emulator... "); | |
312 | } | |
313 | strcpy (buf, "\032"); | |
314 | send (buf); | |
315 | expect_prompt (); | |
316 | if (quit) | |
317 | { | |
318 | error ("done\n"); | |
319 | } | |
320 | } | |
321 | ||
322 | ||
323 | /* Open a connection to a remote debugger and push the new target | |
324 | onto the stack. Check if the emulator is responding and find out | |
325 | what kind of processor the emulator is connected to. | |
326 | Initiate the breakpoint handling in the emulator. | |
327 | ||
328 | name - the filename used for communication (ex. '/dev/tta') | |
329 | from_tty - says whether to be verbose or not */ | |
330 | ||
331 | static void | |
332 | es1800_open (name, from_tty) | |
333 | char *name; | |
334 | int from_tty; | |
335 | { | |
336 | char buf[PBUFSIZ]; | |
337 | char *p; | |
338 | int i, fcflag; | |
339 | ||
340 | m68020 = 0; | |
341 | ||
c5aa993b | 342 | if (!name) /* no device name given in target command */ |
c906108c SS |
343 | { |
344 | error_no_arg ("serial port device name"); | |
345 | } | |
346 | ||
347 | target_preopen (from_tty); | |
348 | es1800_close (0); | |
349 | ||
350 | /* open the device and configure it for communication */ | |
351 | ||
352 | #ifndef DEBUG_STDIN | |
353 | ||
354 | es1800_desc = SERIAL_OPEN (name); | |
355 | if (es1800_desc == NULL) | |
356 | { | |
357 | perror_with_name (name); | |
358 | } | |
359 | savename = savestring (name, strlen (name)); | |
360 | ||
361 | es1800_saved_ttystate = SERIAL_GET_TTY_STATE (es1800_desc); | |
362 | ||
363 | if ((fcflag = fcntl (es1800_desc->fd, F_GETFL, 0)) == -1) | |
364 | { | |
365 | perror_with_name ("fcntl serial"); | |
366 | } | |
367 | es1800_fc_save = fcflag; | |
368 | ||
c5aa993b | 369 | fcflag = (fcflag & (FREAD | FWRITE)); /* mask out any funny stuff */ |
c906108c SS |
370 | if (fcntl (es1800_desc->fd, F_SETFL, fcflag) == -1) |
371 | { | |
372 | perror_with_name ("fcntl serial"); | |
373 | } | |
374 | ||
375 | if (baud_rate != -1) | |
376 | { | |
377 | if (SERIAL_SETBAUDRATE (es1800_desc, baud_rate)) | |
378 | { | |
379 | SERIAL_CLOSE (es1800_desc); | |
380 | perror_with_name (name); | |
381 | } | |
382 | } | |
383 | ||
384 | SERIAL_RAW (es1800_desc); | |
385 | ||
386 | /* If there is something sitting in the buffer we might take it as a | |
387 | response to a command, which would be bad. */ | |
388 | SERIAL_FLUSH_INPUT (es1800_desc); | |
389 | ||
c5aa993b | 390 | #endif /* DEBUG_STDIN */ |
c906108c SS |
391 | |
392 | push_target (&es1800_ops); /* Switch to using remote target now */ | |
393 | if (from_tty) | |
394 | { | |
395 | printf ("Remote ES1800 debugging using %s\n", name); | |
396 | } | |
397 | ||
398 | #if defined (LOG_FILE) | |
399 | ||
400 | log_file = fopen (LOG_FILE, "w"); | |
401 | if (log_file == NULL) | |
402 | { | |
403 | perror_with_name (LOG_FILE); | |
404 | } | |
405 | ||
c5aa993b | 406 | #endif /* LOG_FILE */ |
c906108c SS |
407 | |
408 | /* Hello? Are you there?, also check mode */ | |
409 | ||
410 | /* send_with_reply( "DB 0 TO 1", buf, sizeof(buf)); */ | |
c5aa993b | 411 | /* for (p = buf, i = 0; *p++ =='0';) *//* count the number of zeros */ |
c906108c SS |
412 | /* i++; */ |
413 | ||
414 | send ("\032"); | |
c5aa993b | 415 | getmessage (buf, sizeof (buf)); /* send reset character */ |
c906108c SS |
416 | |
417 | if (from_tty) | |
418 | { | |
419 | printf ("Checking mode.... "); | |
420 | } | |
c5aa993b | 421 | /* m68020 = (i==8); *//* if eight zeros then we are in m68020 mode */ |
c906108c | 422 | |
c5aa993b | 423 | /* What kind of processor am i talking to ? */ |
c906108c | 424 | p = buf; |
c5aa993b JM |
425 | while (*p++ != '\n') |
426 | {; | |
427 | } | |
428 | while (*p++ != '\n') | |
429 | {; | |
430 | } | |
431 | while (*p++ != '\n') | |
432 | {; | |
433 | } | |
434 | for (i = 0; i < 20; i++, p++) | |
435 | {; | |
436 | } | |
c906108c SS |
437 | m68020 = !strncmp (p, "68020", 5); |
438 | if (from_tty) | |
439 | { | |
440 | printf ("You are in %s(%c%c%c%c%c)-mode\n", MODE, p[0], p[1], p[2], | |
441 | p[3], p[4]); | |
442 | } | |
443 | ||
444 | /* if no init_break statement is present in .gdb file we have to check | |
445 | whether to download a breakpoint routine or not */ | |
446 | ||
447 | #if 0 | |
448 | if ((es1800_break_vec == 0) || (verify_break (es1800_break_vec) != 0) | |
449 | && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? ")) | |
450 | { | |
451 | CORE_ADDR memaddress; | |
452 | printf ("Give the start address of the breakpoint routine: "); | |
453 | scanf ("%li", &memaddress); | |
454 | es1800_init_break ((es1800_break_vec ? es1800_break_vec : | |
455 | ES1800_BREAK_VEC), memaddress); | |
456 | } | |
457 | #endif | |
458 | ||
459 | } | |
460 | ||
461 | /* Close out all files and local state before this target loses control. | |
c5aa993b | 462 | quitting - are we quitting gdb now? */ |
c906108c SS |
463 | |
464 | static void | |
465 | es1800_close (quitting) | |
466 | int quitting; | |
467 | { | |
468 | if (es1800_desc != NULL) | |
469 | { | |
470 | printf ("\nClosing connection to emulator...\n"); | |
471 | if (SERIAL_SET_TTY_STATE (es1800_desc, es1800_saved_ttystate) < 0) | |
472 | print_sys_errmsg ("warning: unable to restore tty state", errno); | |
473 | fcntl (es1800_desc->fd, F_SETFL, es1800_fc_save); | |
474 | SERIAL_CLOSE (es1800_desc); | |
475 | es1800_desc = NULL; | |
476 | } | |
477 | if (savename != NULL) | |
478 | { | |
479 | free (savename); | |
480 | } | |
481 | savename = NULL; | |
482 | ||
483 | #if defined (LOG_FILE) | |
484 | ||
485 | if (log_file != NULL) | |
486 | { | |
487 | if (ferror (log_file)) | |
488 | { | |
489 | printf ("Error writing log file.\n"); | |
490 | } | |
491 | if (fclose (log_file) != 0) | |
492 | { | |
493 | printf ("Error closing log file.\n"); | |
494 | } | |
495 | log_file = NULL; | |
496 | } | |
497 | ||
c5aa993b | 498 | #endif /* LOG_FILE */ |
c906108c SS |
499 | |
500 | } | |
501 | ||
502 | /* Attaches to a process on the target side | |
c5aa993b JM |
503 | proc_id - the id of the process to be attached. |
504 | from_tty - says whether to be verbose or not */ | |
c906108c SS |
505 | |
506 | static void | |
507 | es1800_attach (args, from_tty) | |
c5aa993b JM |
508 | char *args; |
509 | int from_tty; | |
c906108c SS |
510 | { |
511 | error ("Cannot attach to pid %s, this feature is not implemented yet.", | |
512 | args); | |
513 | } | |
514 | ||
515 | ||
516 | /* Takes a program previously attached to and detaches it. | |
517 | We better not have left any breakpoints | |
518 | in the program or it'll die when it hits one. | |
519 | Close the open connection to the remote debugger. | |
520 | Use this when you want to detach and do something else | |
521 | with your gdb. | |
c5aa993b | 522 | |
c906108c SS |
523 | args - arguments given to the 'detach' command |
524 | from_tty - says whether to be verbose or not */ | |
525 | ||
526 | static void | |
527 | es1800_detach (args, from_tty) | |
528 | char *args; | |
529 | int from_tty; | |
530 | { | |
531 | if (args) | |
532 | { | |
533 | error ("Argument given to \"detach\" when remotely debugging."); | |
534 | } | |
535 | pop_target (); | |
536 | if (from_tty) | |
537 | { | |
538 | printf ("Ending es1800 remote debugging.\n"); | |
539 | } | |
540 | } | |
541 | ||
542 | ||
543 | /* Tell the remote machine to resume. | |
544 | step - single-step or run free | |
545 | siggnal - the signal value to be given to the target (0 = no signal) */ | |
546 | ||
547 | static void | |
548 | es1800_resume (pid, step, siggnal) | |
549 | int pid; | |
550 | int step; | |
551 | enum target_signal siggnal; | |
552 | { | |
553 | char buf[PBUFSIZ]; | |
554 | ||
555 | if (siggnal) | |
556 | { | |
557 | error ("Can't send signals to a remote system."); | |
558 | } | |
559 | if (step) | |
560 | { | |
c5aa993b | 561 | strcpy (buf, "STP\r"); |
c906108c SS |
562 | send (buf); |
563 | } | |
564 | else | |
565 | { | |
566 | send_command ("RBK"); | |
567 | } | |
568 | } | |
569 | ||
570 | /* Wait until the remote machine stops, then return, | |
571 | storing status in STATUS just as `wait' would. | |
572 | status - */ | |
c5aa993b | 573 | |
c906108c SS |
574 | static int |
575 | es1800_wait (pid, status) | |
576 | int pid; | |
577 | struct target_waitstatus *status; | |
578 | { | |
579 | unsigned char buf[PBUFSIZ]; | |
580 | int old_timeout = timeout; | |
581 | ||
582 | status->kind = TARGET_WAITKIND_EXITED; | |
583 | status->value.integer = 0; | |
584 | ||
c5aa993b | 585 | timeout = 0; /* Don't time out -- user program is running. */ |
c906108c SS |
586 | if (!setjmp (interrupt)) |
587 | { | |
588 | old_sigint = signal (SIGINT, es1800_request_quit); | |
589 | while (1) | |
c5aa993b JM |
590 | { |
591 | getmessage (buf, sizeof (buf)); | |
592 | if (strncmp (buf, "\r\n* BREAK *", 11) == 0) | |
c906108c SS |
593 | { |
594 | status->kind = TARGET_WAITKIND_STOPPED; | |
595 | status->value.sig = TARGET_SIGNAL_TRAP; | |
596 | send_command ("STP"); /* Restore stack and PC and such */ | |
597 | if (m68020) | |
598 | { | |
599 | send_command ("STP"); | |
600 | } | |
601 | break; | |
602 | } | |
603 | if (strncmp (buf, "STP\r\n ", 6) == 0) | |
604 | { | |
605 | status->kind = TARGET_WAITKIND_STOPPED; | |
606 | status->value.sig = TARGET_SIGNAL_TRAP; | |
607 | break; | |
608 | } | |
609 | if (buf[strlen (buf) - 2] == 'R') | |
610 | { | |
611 | printf ("Unexpected emulator reply: \n%s\n", buf); | |
612 | } | |
613 | else | |
614 | { | |
615 | printf ("Unexpected stop: \n%s\n", buf); | |
616 | status->kind = TARGET_WAITKIND_STOPPED; | |
617 | status->value.sig = TARGET_SIGNAL_QUIT; | |
618 | break; | |
619 | } | |
c5aa993b | 620 | } |
c906108c SS |
621 | } |
622 | else | |
623 | { | |
624 | fflush (stdin); | |
625 | printf ("\nStopping emulator..."); | |
626 | if (!setjmp (interrupt)) | |
627 | { | |
628 | old_sigint = signal (SIGINT, es1800_request_quit); | |
629 | send_command ("STP"); | |
630 | printf (" emulator stopped\n"); | |
631 | status->kind = TARGET_WAITKIND_STOPPED; | |
632 | status->value.sig = TARGET_SIGNAL_INT; | |
c5aa993b | 633 | } |
c906108c SS |
634 | else |
635 | { | |
636 | fflush (stdin); | |
c5aa993b | 637 | es1800_reset ((char *) 1); |
c906108c SS |
638 | } |
639 | } | |
640 | signal (SIGINT, old_sigint); | |
641 | timeout = old_timeout; | |
642 | return (0); | |
643 | } | |
644 | ||
645 | ||
646 | /* Fetch register values from remote machine. | |
647 | regno - the register to be fetched (fetch all registers if -1) */ | |
648 | ||
649 | static void | |
650 | es1800_fetch_register (regno) | |
651 | int regno; | |
652 | { | |
653 | char buf[PBUFSIZ]; | |
654 | int k; | |
655 | int r; | |
656 | char *p; | |
c5aa993b JM |
657 | static char regtab[18][4] = |
658 | { | |
659 | "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ", | |
660 | "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP", | |
661 | "SR ", "PC " | |
662 | }; | |
c906108c SS |
663 | |
664 | if ((regno < 15) || (regno == 16) || (regno == 17)) | |
665 | { | |
666 | r = regno * 4; | |
667 | send_with_reply (regtab[regno], buf, sizeof (buf)); | |
668 | p = buf; | |
669 | for (k = 0; k < 4; k++) | |
670 | { | |
c5aa993b | 671 | if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0)) |
c906108c SS |
672 | { |
673 | error ("Emulator reply is too short: %s", buf); | |
674 | } | |
c5aa993b | 675 | registers[r++] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]); |
c906108c SS |
676 | } |
677 | } | |
678 | else | |
679 | { | |
680 | es1800_fetch_registers (); | |
681 | } | |
682 | } | |
683 | ||
684 | /* Read the remote registers into REGISTERS. | |
685 | Always fetches all registers. */ | |
686 | ||
687 | static void | |
688 | es1800_fetch_registers () | |
689 | { | |
690 | char buf[PBUFSIZ]; | |
691 | char SR_buf[PBUFSIZ]; | |
692 | int i; | |
693 | int k; | |
694 | int r; | |
695 | char *p; | |
696 | ||
697 | send_with_reply ("DR", buf, sizeof (buf)); | |
698 | ||
699 | /* Reply is edited to a string that describes registers byte by byte, | |
700 | each byte encoded as two hex characters. */ | |
701 | ||
702 | p = buf; | |
703 | r = 0; | |
704 | ||
705 | /* parsing row one - D0-D7-registers */ | |
706 | ||
c5aa993b JM |
707 | while (*p++ != '\n') |
708 | {; | |
709 | } | |
c906108c SS |
710 | for (i = 4; i < 70; i += (i == 39 ? 3 : 1)) |
711 | { | |
712 | for (k = 0; k < 4; k++) | |
713 | { | |
c5aa993b | 714 | if (p[i + 0] == 0 || p[i + 1] == 0) |
c906108c SS |
715 | { |
716 | error ("Emulator reply is too short: %s", buf); | |
717 | } | |
c5aa993b | 718 | registers[r++] = (fromhex (p[i + 0]) * 16) + fromhex (p[i + 1]); |
c906108c SS |
719 | i += 2; |
720 | } | |
721 | } | |
722 | p += i; | |
723 | ||
724 | /* parsing row two - A0-A6-registers */ | |
725 | ||
c5aa993b JM |
726 | while (*p++ != '\n') |
727 | {; | |
728 | } | |
c906108c SS |
729 | for (i = 4; i < 61; i += (i == 39 ? 3 : 1)) |
730 | { | |
731 | for (k = 0; k < 4; k++) | |
732 | { | |
c5aa993b | 733 | if (p[i + 0] == 0 || p[i + 1] == 0) |
c906108c SS |
734 | { |
735 | error ("Emulator reply is too short: %s", buf); | |
736 | } | |
c5aa993b | 737 | registers[r++] = (fromhex (p[i + 0])) * 16 + fromhex (p[i + 1]); |
c906108c SS |
738 | i += 2; |
739 | } | |
740 | } | |
741 | p += i; | |
742 | ||
c5aa993b JM |
743 | while (*p++ != '\n') |
744 | {; | |
745 | } | |
c906108c SS |
746 | |
747 | /* fetch SSP-, SR- and PC-registers */ | |
748 | ||
749 | /* first - check STATUS-word and decide which stackpointer to use */ | |
750 | ||
751 | send_with_reply ("SR", SR_buf, sizeof (SR_buf)); | |
752 | p = SR_buf; | |
753 | p += 5; | |
754 | ||
755 | if (m68020) | |
756 | { | |
c5aa993b | 757 | if (*p == '3') /* use masterstackpointer MSP */ |
c906108c SS |
758 | { |
759 | send_with_reply ("MSP", buf, sizeof (buf)); | |
760 | } | |
761 | else if (*p == '2') /* use interruptstackpointer ISP */ | |
762 | { | |
763 | send_with_reply ("ISP", buf, sizeof (buf)); | |
764 | } | |
c5aa993b JM |
765 | else |
766 | /* use userstackpointer USP */ | |
c906108c | 767 | { |
c5aa993b | 768 | send_with_reply ("USP", buf, sizeof (buf)); |
c906108c SS |
769 | } |
770 | p = buf; | |
c5aa993b | 771 | for (k = 0; k < 4; k++) |
c906108c | 772 | { |
c5aa993b | 773 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
774 | { |
775 | error ("Emulator reply is too short: %s", buf); | |
776 | } | |
c5aa993b | 777 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
c906108c SS |
778 | } |
779 | ||
780 | p = SR_buf; | |
781 | for (k = 0; k < 4; k++) | |
782 | { | |
c5aa993b | 783 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
784 | { |
785 | error ("Emulator reply is too short: %s", buf); | |
786 | } | |
787 | registers[r++] = | |
c5aa993b | 788 | fromhex (SR_buf[k * 2 + 1]) * 16 + fromhex (SR_buf[k * 2 + 2]); |
c906108c SS |
789 | } |
790 | send_with_reply ("PC", buf, sizeof (buf)); | |
791 | p = buf; | |
c5aa993b | 792 | for (k = 0; k < 4; k++) |
c906108c | 793 | { |
c5aa993b | 794 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
795 | { |
796 | error ("Emulator reply is too short: %s", buf); | |
797 | } | |
c5aa993b | 798 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
c906108c SS |
799 | } |
800 | } | |
c5aa993b JM |
801 | else |
802 | /* 68000-mode */ | |
803 | { | |
804 | if (*p == '2') /* use supervisorstackpointer SSP */ | |
c906108c | 805 | { |
c5aa993b | 806 | send_with_reply ("SSP", buf, sizeof (buf)); |
c906108c | 807 | } |
c5aa993b JM |
808 | else |
809 | /* use userstackpointer USP */ | |
c906108c | 810 | { |
c5aa993b | 811 | send_with_reply ("USP", buf, sizeof (buf)); |
c906108c SS |
812 | } |
813 | ||
814 | /* fetch STACKPOINTER */ | |
815 | ||
816 | p = buf; | |
817 | for (k = 0; k < 4; k++) | |
818 | { | |
c5aa993b | 819 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
820 | { |
821 | error ("Emulator reply is too short: %s", buf); | |
822 | } | |
c5aa993b | 823 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
c906108c SS |
824 | } |
825 | ||
826 | /* fetch STATUS */ | |
827 | ||
828 | p = SR_buf; | |
829 | for (k = 0; k < 4; k++) | |
830 | { | |
c5aa993b | 831 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
832 | { |
833 | error ("Emulator reply is too short: %s", buf); | |
834 | } | |
835 | registers[r++] = | |
c5aa993b | 836 | fromhex (SR_buf[k * 2 + 1]) * 16 + fromhex (SR_buf[k * 2 + 2]); |
c906108c SS |
837 | } |
838 | ||
839 | /* fetch PC */ | |
840 | ||
c5aa993b | 841 | send_with_reply ("PC", buf, sizeof (buf)); |
c906108c SS |
842 | p = buf; |
843 | for (k = 0; k < 4; k++) | |
844 | { | |
c5aa993b | 845 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
846 | { |
847 | error ("Emulator reply is too short: %s", buf); | |
848 | } | |
c5aa993b JM |
849 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
850 | } | |
c906108c SS |
851 | } |
852 | } | |
853 | ||
854 | /* Store register value, located in REGISTER, on the target processor. | |
855 | regno - the register-number of the register to store | |
c5aa993b | 856 | (-1 means store them all) |
c906108c SS |
857 | FIXME: Return errno value. */ |
858 | ||
859 | static void | |
c5aa993b | 860 | es1800_store_register (regno) |
c906108c SS |
861 | int regno; |
862 | { | |
863 | ||
864 | static char regtab[18][4] = | |
c5aa993b JM |
865 | { |
866 | "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ", | |
867 | "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP", | |
868 | "SR ", "PC " | |
869 | }; | |
c906108c SS |
870 | |
871 | char buf[PBUFSIZ]; | |
872 | char SR_buf[PBUFSIZ]; | |
873 | char stack_pointer[4]; | |
874 | char *p; | |
875 | int i; | |
876 | int j; | |
877 | int k; | |
878 | unsigned char *r; | |
879 | ||
880 | r = (unsigned char *) registers; | |
881 | ||
c5aa993b | 882 | if (regno == -1) /* write all registers */ |
c906108c SS |
883 | { |
884 | j = 0; | |
885 | k = 18; | |
886 | } | |
c5aa993b JM |
887 | else |
888 | /* write one register */ | |
c906108c SS |
889 | { |
890 | j = regno; | |
c5aa993b JM |
891 | k = regno + 1; |
892 | r += regno * 4; | |
893 | } | |
c906108c SS |
894 | |
895 | if ((regno == -1) || (regno == 15)) | |
896 | { | |
897 | /* fetch current status */ | |
898 | send_with_reply ("SR", SR_buf, sizeof (SR_buf)); | |
899 | p = SR_buf; | |
900 | p += 5; | |
901 | if (m68020) | |
902 | { | |
c5aa993b | 903 | if (*p == '3') /* use masterstackpointer MSP */ |
c906108c | 904 | { |
c5aa993b | 905 | strcpy (stack_pointer, "MSP"); |
c906108c SS |
906 | } |
907 | else | |
908 | { | |
c5aa993b | 909 | if (*p == '2') /* use interruptstackpointer ISP */ |
c906108c | 910 | { |
c5aa993b | 911 | strcpy (stack_pointer, "ISP"); |
c906108c SS |
912 | } |
913 | else | |
914 | { | |
c5aa993b | 915 | strcpy (stack_pointer, "USP"); /* use userstackpointer USP */ |
c906108c SS |
916 | } |
917 | } | |
918 | } | |
c5aa993b JM |
919 | else |
920 | /* 68000-mode */ | |
c906108c | 921 | { |
c5aa993b | 922 | if (*p == '2') /* use supervisorstackpointer SSP */ |
c906108c | 923 | { |
c5aa993b | 924 | strcpy (stack_pointer, "SSP"); |
c906108c SS |
925 | } |
926 | else | |
927 | { | |
c5aa993b | 928 | strcpy (stack_pointer, "USP"); /* use userstackpointer USP */ |
c906108c SS |
929 | } |
930 | } | |
c5aa993b | 931 | strcpy (regtab[15], stack_pointer); |
c906108c SS |
932 | } |
933 | ||
c5aa993b | 934 | for (i = j; i < k; i++) |
c906108c SS |
935 | { |
936 | buf[0] = regtab[i][0]; | |
937 | buf[1] = regtab[i][1]; | |
938 | buf[2] = regtab[i][2]; | |
939 | buf[3] = '='; | |
940 | buf[4] = '$'; | |
941 | buf[5] = tohex ((*r >> 4) & 0x0f); | |
942 | buf[6] = tohex (*r++ & 0x0f); | |
943 | buf[7] = tohex ((*r >> 4) & 0x0f); | |
944 | buf[8] = tohex (*r++ & 0x0f); | |
945 | buf[9] = tohex ((*r >> 4) & 0x0f); | |
946 | buf[10] = tohex (*r++ & 0x0f); | |
947 | buf[11] = tohex ((*r >> 4) & 0x0f); | |
948 | buf[12] = tohex (*r++ & 0x0f); | |
949 | buf[13] = 0; | |
950 | ||
c5aa993b | 951 | send_with_reply (buf, buf, sizeof (buf)); /* FIXME, reply not used? */ |
c906108c SS |
952 | } |
953 | } | |
954 | ||
955 | ||
956 | /* Prepare to store registers. */ | |
957 | ||
c5aa993b | 958 | static void |
c906108c SS |
959 | es1800_prepare_to_store () |
960 | { | |
961 | /* Do nothing, since we can store individual regs */ | |
962 | } | |
963 | ||
964 | /* Convert hex digit A to a number. */ | |
965 | ||
966 | static int | |
967 | fromhex (a) | |
968 | int a; | |
969 | { | |
970 | if (a >= '0' && a <= '9') | |
971 | { | |
972 | return a - '0'; | |
973 | } | |
974 | else if (a >= 'a' && a <= 'f') | |
975 | { | |
976 | return a - 'a' + 10; | |
977 | } | |
978 | else if (a >= 'A' && a <= 'F') | |
979 | { | |
980 | return a - 'A' + 10; | |
981 | } | |
982 | else | |
983 | { | |
984 | error ("Reply contains invalid hex digit"); | |
985 | } | |
986 | return (-1); | |
987 | } | |
988 | ||
989 | ||
990 | /* Convert number NIB to a hex digit. */ | |
991 | ||
992 | static int | |
993 | tohex (nib) | |
994 | int nib; | |
995 | { | |
996 | if (nib < 10) | |
997 | { | |
998 | return ('0' + nib); | |
999 | } | |
1000 | else | |
1001 | { | |
1002 | return ('A' + nib - 10); | |
1003 | } | |
1004 | } | |
1005 | ||
1006 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
1007 | to or from debugger address MYADDR. Write to inferior if WRITE is | |
1008 | nonzero. Returns length of data written or read; 0 for error. | |
c5aa993b | 1009 | |
c906108c SS |
1010 | memaddr - the target's address |
1011 | myaddr - gdb's address | |
1012 | len - number of bytes | |
c5aa993b | 1013 | write - write if != 0 otherwise read */ |
c906108c SS |
1014 | |
1015 | static int | |
1016 | es1800_xfer_inferior_memory (memaddr, myaddr, len, write, tops) | |
1017 | CORE_ADDR memaddr; | |
1018 | char *myaddr; | |
1019 | int len; | |
1020 | int write; | |
1021 | struct target_ops *tops; /* Unused */ | |
1022 | { | |
1023 | int origlen = len; | |
1024 | int xfersize; | |
1025 | ||
1026 | while (len > 0) | |
1027 | { | |
1028 | xfersize = len > MAXBUFBYTES ? MAXBUFBYTES : len; | |
1029 | if (write) | |
1030 | { | |
1031 | es1800_write_bytes (memaddr, myaddr, xfersize); | |
1032 | } | |
1033 | else | |
1034 | { | |
1035 | es1800_read_bytes (memaddr, myaddr, xfersize); | |
1036 | } | |
1037 | memaddr += xfersize; | |
1038 | myaddr += xfersize; | |
1039 | len -= xfersize; | |
1040 | } | |
c5aa993b | 1041 | return (origlen); /* no error possible */ |
c906108c SS |
1042 | } |
1043 | ||
1044 | ||
1045 | /* Write memory data directly to the emulator. | |
1046 | This does not inform the data cache; the data cache uses this. | |
1047 | MEMADDR is the address in the remote memory space. | |
1048 | MYADDR is the address of the buffer in our space. | |
1049 | LEN is the number of bytes. | |
c5aa993b | 1050 | |
c906108c SS |
1051 | memaddr - the target's address |
1052 | myaddr - gdb's address | |
1053 | len - number of bytes */ | |
1054 | ||
1055 | static void | |
1056 | es1800_write_bytes (memaddr, myaddr, len) | |
1057 | CORE_ADDR memaddr; | |
1058 | char *myaddr; | |
1059 | int len; | |
1060 | { | |
1061 | char buf[PBUFSIZ]; | |
1062 | int i; | |
1063 | char *p; | |
1064 | ||
1065 | p = myaddr; | |
1066 | for (i = 0; i < len; i++) | |
1067 | { | |
c5aa993b JM |
1068 | sprintf (buf, "@.B$%x=$%x", memaddr + i, (*p++) & 0xff); |
1069 | send_with_reply (buf, buf, sizeof (buf)); /* FIXME send_command? */ | |
c906108c SS |
1070 | } |
1071 | } | |
1072 | ||
1073 | ||
1074 | /* Read memory data directly from the emulator. | |
1075 | This does not use the data cache; the data cache uses this. | |
c5aa993b | 1076 | |
c906108c SS |
1077 | memaddr - the target's address |
1078 | myaddr - gdb's address | |
1079 | len - number of bytes */ | |
1080 | ||
1081 | static void | |
1082 | es1800_read_bytes (memaddr, myaddr, len) | |
1083 | CORE_ADDR memaddr; | |
1084 | char *myaddr; | |
1085 | int len; | |
1086 | { | |
c5aa993b JM |
1087 | static int DB_tab[16] = |
1088 | {8, 11, 14, 17, 20, 23, 26, 29, 34, 37, 40, 43, 46, 49, 52, 55}; | |
c906108c SS |
1089 | char buf[PBUFSIZ]; |
1090 | int i; | |
1091 | int low_addr; | |
1092 | char *p; | |
1093 | char *b; | |
1094 | ||
1095 | if (len > PBUFSIZ / 2 - 1) | |
1096 | { | |
1097 | abort (); | |
1098 | } | |
1099 | ||
c5aa993b | 1100 | if (len == 1) /* The emulator does not like expressions like: */ |
c906108c | 1101 | { |
c5aa993b | 1102 | len = 2; /* DB.B $20018 TO $20018 */ |
c906108c SS |
1103 | } |
1104 | ||
1105 | /* Reply describes registers byte by byte, each byte encoded as two hex | |
1106 | characters. */ | |
1107 | ||
c5aa993b | 1108 | sprintf (buf, "DB.B $%x TO $%x", memaddr, memaddr + len - 1); |
c906108c SS |
1109 | send_with_reply (buf, buf, sizeof (buf)); |
1110 | b = buf; | |
c5aa993b | 1111 | low_addr = memaddr & 0x0f; |
c906108c SS |
1112 | for (i = low_addr; i < low_addr + len; i++) |
1113 | { | |
1114 | if ((!(i % 16)) && i) | |
c5aa993b JM |
1115 | { /* if (i = 16,32,48) */ |
1116 | while (*p++ != '\n') | |
1117 | {; | |
1118 | } | |
c906108c SS |
1119 | b = p; |
1120 | } | |
c5aa993b | 1121 | p = b + DB_tab[i % 16] + (m68020 ? 2 : 0); |
c906108c SS |
1122 | if (p[0] == 32 || p[1] == 32) |
1123 | { | |
1124 | error ("Emulator reply is too short: %s", buf); | |
1125 | } | |
c5aa993b | 1126 | myaddr[i - low_addr] = fromhex (p[0]) * 16 + fromhex (p[1]); |
c906108c SS |
1127 | } |
1128 | } | |
1129 | ||
1130 | /* Information about the current target */ | |
1131 | ||
1132 | static void | |
1133 | es1800_files_info (tops) | |
1134 | struct target_ops *tops; /* Unused */ | |
1135 | { | |
1136 | printf ("ES1800 Attached to %s at %d baud in %s mode\n", savename, 19200, | |
1137 | MODE); | |
1138 | } | |
1139 | ||
1140 | ||
1141 | /* We read the contents of the target location and stash it, | |
1142 | then overwrite it with a breakpoint instruction. | |
c5aa993b | 1143 | |
c906108c SS |
1144 | addr - is the target location in the target machine. |
1145 | contents_cache - is a pointer to memory allocated for saving the target contents. | |
c5aa993b JM |
1146 | It is guaranteed by the caller to be long enough to save sizeof |
1147 | BREAKPOINT bytes. | |
1148 | ||
c906108c SS |
1149 | FIXME: This size is target_arch dependent and should be available in |
1150 | the target_arch transfer vector, if we ever have one... */ | |
1151 | ||
1152 | static int | |
1153 | es1800_insert_breakpoint (addr, contents_cache) | |
1154 | CORE_ADDR addr; | |
1155 | char *contents_cache; | |
1156 | { | |
c5aa993b | 1157 | int val; |
c906108c SS |
1158 | |
1159 | val = target_read_memory (addr, contents_cache, sizeof (es1800_break_insn)); | |
1160 | ||
1161 | if (val == 0) | |
1162 | { | |
1163 | val = target_write_memory (addr, es1800_break_insn, | |
1164 | sizeof (es1800_break_insn)); | |
1165 | } | |
1166 | ||
1167 | return (val); | |
1168 | } | |
1169 | ||
1170 | ||
1171 | /* Write back the stashed instruction | |
c5aa993b | 1172 | |
c906108c SS |
1173 | addr - is the target location in the target machine. |
1174 | contents_cache - is a pointer to memory allocated for saving the target contents. | |
c5aa993b JM |
1175 | It is guaranteed by the caller to be long enough to save sizeof |
1176 | BREAKPOINT bytes. */ | |
1177 | ||
c906108c SS |
1178 | static int |
1179 | es1800_remove_breakpoint (addr, contents_cache) | |
1180 | CORE_ADDR addr; | |
1181 | char *contents_cache; | |
1182 | { | |
1183 | ||
1184 | return (target_write_memory (addr, contents_cache, | |
1185 | sizeof (es1800_break_insn))); | |
1186 | } | |
1187 | ||
1188 | /* create_break_insn () | |
1189 | Primitive datastructures containing the es1800 breakpoint instruction */ | |
1190 | ||
1191 | static void | |
1192 | es1800_create_break_insn (ins, vec) | |
1193 | char *ins; | |
1194 | int vec; | |
1195 | { | |
1196 | if (vec == 15) | |
1197 | { | |
1198 | ins[0] = 0x4e; | |
1199 | ins[1] = 0x4f; | |
1200 | } | |
1201 | } | |
1202 | ||
1203 | ||
1204 | /* verify_break () | |
1205 | Seach for breakpoint routine in emulator memory. | |
1206 | returns non-zero on failure | |
1207 | vec - trap vector used for breakpoints */ | |
1208 | ||
1209 | static int | |
1210 | verify_break (vec) | |
1211 | int vec; | |
1212 | { | |
1213 | CORE_ADDR memaddress; | |
1214 | char buf[8]; | |
c5aa993b | 1215 | char *instr = "NqNqNqNs"; /* breakpoint routine */ |
c906108c SS |
1216 | int status; |
1217 | ||
1218 | get_break_addr (vec, &memaddress); | |
1219 | ||
1220 | if (memaddress) | |
1221 | { | |
c5aa993b | 1222 | status = target_read_memory (memaddress, buf, 8); |
c906108c SS |
1223 | if (status != 0) |
1224 | { | |
1225 | memory_error (status, memaddress); | |
1226 | } | |
1227 | return (STRCMP (instr, buf)); | |
1228 | } | |
c5aa993b | 1229 | return (-1); |
c906108c SS |
1230 | } |
1231 | ||
1232 | ||
1233 | /* get_break_addr () | |
1234 | find address of breakpint routine | |
1235 | vec - trap vector used for breakpoints | |
c5aa993b | 1236 | addrp - store the address here */ |
c906108c SS |
1237 | |
1238 | static void | |
1239 | get_break_addr (vec, addrp) | |
1240 | int vec; | |
1241 | CORE_ADDR *addrp; | |
1242 | { | |
1243 | CORE_ADDR memaddress = 0; | |
1244 | int status; | |
1245 | int k; | |
1246 | char buf[PBUFSIZ]; | |
1247 | char base_addr[4]; | |
1248 | char *p; | |
1249 | ||
1250 | if (m68020) | |
1251 | { | |
1252 | send_with_reply ("VBR ", buf, sizeof (buf)); | |
1253 | p = buf; | |
1254 | for (k = 0; k < 4; k++) | |
1255 | { | |
c5aa993b | 1256 | if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0)) |
c906108c SS |
1257 | { |
1258 | error ("Emulator reply is too short: %s", buf); | |
1259 | } | |
c5aa993b | 1260 | base_addr[k] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]); |
c906108c SS |
1261 | } |
1262 | /* base addr of exception vector table */ | |
1263 | memaddress = *((CORE_ADDR *) base_addr); | |
1264 | } | |
1265 | ||
c5aa993b JM |
1266 | memaddress += (vec + 32) * 4; /* address of trap vector */ |
1267 | status = target_read_memory (memaddress, (char *) addrp, 4); | |
1268 | if (status != 0) | |
1269 | { | |
1270 | memory_error (status, memaddress); | |
1271 | } | |
c906108c SS |
1272 | } |
1273 | ||
1274 | ||
1275 | /* Kill an inferior process */ | |
1276 | ||
1277 | static void | |
1278 | es1800_kill () | |
1279 | { | |
1280 | if (inferior_pid != 0) | |
1281 | { | |
1282 | inferior_pid = 0; | |
1283 | es1800_mourn_inferior (); | |
1284 | } | |
1285 | } | |
1286 | ||
1287 | ||
1288 | /* Load a file to the ES1800 emulator. | |
1289 | Converts the file from a.out format into Extended Tekhex format | |
1290 | before the file is loaded. | |
1291 | Also loads the trap routine, and sets the ES1800 breakpoint on it | |
1292 | filename - the a.out to be loaded | |
1293 | from_tty - says whether to be verbose or not | |
c5aa993b JM |
1294 | FIXME Uses emulator overlay memory for trap routine */ |
1295 | ||
c906108c SS |
1296 | static void |
1297 | es1800_load (filename, from_tty) | |
1298 | char *filename; | |
1299 | int from_tty; | |
1300 | { | |
1301 | ||
1302 | FILE *instream; | |
1303 | char loadname[15]; | |
1304 | char buf[160]; | |
1305 | struct cleanup *old_chain; | |
1306 | int es1800_load_format = 5; | |
1307 | ||
c5aa993b | 1308 | if (es1800_desc == NULL) |
c906108c SS |
1309 | { |
1310 | printf ("No emulator attached, type emulator-command first\n"); | |
1311 | return; | |
1312 | } | |
1313 | ||
1314 | filename = tilde_expand (filename); | |
1315 | make_cleanup (free, filename); | |
1316 | ||
1317 | switch (es1800_load_format) | |
1318 | { | |
c5aa993b JM |
1319 | case 2: /* Extended Tekhex */ |
1320 | if (from_tty) | |
1321 | { | |
1322 | printf ("Converting \"%s\" to Extended Tekhex Format\n", filename); | |
1323 | } | |
1324 | sprintf (buf, "tekhex %s", filename); | |
1325 | system (buf); | |
1326 | sprintf (loadname, "out.hex"); | |
1327 | break; | |
1328 | ||
1329 | case 5: /* Motorola S-rec */ | |
1330 | if (from_tty) | |
1331 | { | |
1332 | printf ("Converting \"%s\" to Motorola S-record format\n", | |
1333 | filename); | |
1334 | } | |
1335 | /* in the future the source code in copy (part of binutils-1.93) will | |
1336 | be included in this file */ | |
1337 | sprintf (buf, | |
1338 | "copy -s \"a.out-sunos-big\" -d \"srec\" %s /tmp/out.hex", | |
1339 | filename); | |
1340 | system (buf); | |
1341 | sprintf (loadname, "/tmp/out.hex"); | |
1342 | break; | |
1343 | ||
1344 | default: | |
1345 | error ("Downloading format not defined\n"); | |
1346 | } | |
1347 | ||
c906108c SS |
1348 | breakpoint_init_inferior (); |
1349 | inferior_pid = 0; | |
1350 | if (from_tty) | |
1351 | { | |
c5aa993b | 1352 | printf ("Downloading \"%s\" to the ES 1800\n", filename); |
c906108c SS |
1353 | } |
1354 | if ((instream = fopen (loadname, "r")) == NULL) | |
1355 | { | |
1356 | perror_with_name ("fopen:"); | |
1357 | } | |
1358 | ||
1359 | old_chain = make_cleanup (fclose, instream); | |
1360 | immediate_quit++; | |
1361 | ||
1362 | es1800_reset (0); | |
1363 | ||
1364 | download (instream, from_tty, es1800_load_format); | |
1365 | ||
1366 | /* if breakpoint routine is not present anymore we have to check | |
1367 | whether to download a new breakpoint routine or not */ | |
1368 | ||
1369 | if ((verify_break (es1800_break_vec) != 0) | |
1370 | && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? ")) | |
1371 | { | |
1372 | char buf[128]; | |
1373 | printf ("Using break vector 0x%x\n", es1800_break_vec); | |
1374 | sprintf (buf, "0x%x ", es1800_break_vec); | |
1375 | printf ("Give the start address of the breakpoint routine: "); | |
1376 | fgets (buf + strlen (buf), sizeof (buf) - strlen (buf), stdin); | |
1377 | es1800_init_break (buf, 0); | |
1378 | } | |
1379 | ||
1380 | do_cleanups (old_chain); | |
1381 | expect_prompt (); | |
c5aa993b | 1382 | readchar (); /* FIXME I am getting a ^G = 7 after the prompt */ |
c906108c SS |
1383 | printf ("\n"); |
1384 | ||
1385 | if (fclose (instream) == EOF) | |
1386 | { | |
1387 | ; | |
1388 | } | |
1389 | ||
1390 | if (es1800_load_format != 2) | |
1391 | { | |
1392 | sprintf (buf, "/usr/bin/rm %s", loadname); | |
1393 | system (buf); | |
1394 | } | |
1395 | ||
c5aa993b | 1396 | symbol_file_command (filename, from_tty); /* reading symbol table */ |
c906108c SS |
1397 | immediate_quit--; |
1398 | } | |
1399 | ||
1400 | #if 0 | |
1401 | ||
1402 | #define NUMCPYBYTES 20 | |
1403 | ||
1404 | static void | |
1405 | bfd_copy (from_bfd, to_bfd) | |
1406 | bfd *from_bfd; | |
1407 | bfd *to_bfd; | |
1408 | { | |
1409 | asection *p, *new; | |
1410 | int i; | |
1411 | char buf[NUMCPYBYTES]; | |
1412 | ||
1413 | for (p = from_bfd->sections; p != NULL; p = p->next) | |
1414 | { | |
1415 | printf (" Copying section %s. Size = %x.\n", p->name, p->_cooked_size); | |
1416 | printf (" vma = %x, offset = %x, output_sec = %x\n", | |
1417 | p->vma, p->output_offset, p->output_section); | |
1418 | new = bfd_make_section (to_bfd, p->name); | |
1419 | if (p->_cooked_size && | |
1420 | !bfd_set_section_size (to_bfd, new, p->_cooked_size)) | |
1421 | { | |
1422 | error ("Wrong BFD size!\n"); | |
1423 | } | |
1424 | if (!bfd_set_section_flags (to_bfd, new, p->flags)) | |
1425 | { | |
1426 | error ("bfd_set_section_flags"); | |
1427 | } | |
1428 | new->vma = p->vma; | |
c5aa993b JM |
1429 | |
1430 | for (i = 0; (i + NUMCPYBYTES) < p->_cooked_size; i += NUMCPYBYTES) | |
c906108c SS |
1431 | { |
1432 | if (!bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i, | |
c5aa993b | 1433 | (bfd_size_type) NUMCPYBYTES)) |
c906108c SS |
1434 | { |
1435 | error ("bfd_get_section_contents\n"); | |
1436 | } | |
c5aa993b JM |
1437 | if (!bfd_set_section_contents (to_bfd, new, (PTR) buf, (file_ptr) i, |
1438 | (bfd_size_type) NUMCPYBYTES)) | |
1439 | { | |
1440 | error ("bfd_set_section_contents\n"); | |
1441 | } | |
1442 | } | |
c906108c SS |
1443 | bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i, |
1444 | (bfd_size_type) (p->_cooked_size - i)); | |
c5aa993b | 1445 | bfd_set_section_contents (to_bfd, new, (PTR) buf, (file_ptr) i, |
c906108c SS |
1446 | (bfd_size_type) (p->_cooked_size - i)); |
1447 | } | |
1448 | } | |
1449 | ||
1450 | #endif | |
1451 | ||
1452 | /* Start an process on the es1800 and set inferior_pid to the new | |
1453 | process' pid. | |
1454 | execfile - the file to run | |
1455 | args - arguments passed to the program | |
c5aa993b | 1456 | env - the environment vector to pass */ |
c906108c SS |
1457 | |
1458 | static void | |
1459 | es1800_create_inferior (execfile, args, env) | |
1460 | char *execfile; | |
1461 | char *args; | |
1462 | char **env; | |
1463 | { | |
1464 | int entry_pt; | |
1465 | int pid; | |
1466 | #if 0 | |
1467 | struct expression *expr; | |
1468 | register struct cleanup *old_chain = 0; | |
1469 | register value val; | |
1470 | #endif | |
1471 | ||
1472 | if (args && *args) | |
1473 | { | |
1474 | error ("Can't pass arguments to remote ES1800 process"); | |
1475 | } | |
1476 | ||
1477 | #if 0 | |
1478 | if (query ("Use 'start' as entry point? ")) | |
1479 | { | |
1480 | expr = parse_c_expression ("start"); | |
1481 | old_chain = make_cleanup (free_current_contents, &expr); | |
1482 | val = evaluate_expression (expr); | |
1483 | entry_pt = (val->location).address; | |
1484 | } | |
1485 | else | |
1486 | { | |
1487 | printf ("Enter the program's entry point (in hexadecimal): "); | |
1488 | scanf ("%x", &entry_pt); | |
1489 | } | |
1490 | #endif | |
1491 | ||
1492 | if (execfile == 0 || exec_bfd == 0) | |
1493 | { | |
1494 | error ("No executable file specified"); | |
1495 | } | |
1496 | ||
1497 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
1498 | ||
1499 | pid = 42; | |
1500 | ||
1501 | /* Now that we have a child process, make it our target. */ | |
1502 | ||
1503 | push_target (&es1800_child_ops); | |
1504 | ||
1505 | /* The "process" (board) is already stopped awaiting our commands, and | |
1506 | the program is already downloaded. We just set its PC and go. */ | |
1507 | ||
1508 | inferior_pid = pid; /* Needed for wait_for_inferior below */ | |
1509 | ||
1510 | clear_proceed_status (); | |
1511 | ||
1512 | /* Tell wait_for_inferior that we've started a new process. */ | |
1513 | ||
1514 | init_wait_for_inferior (); | |
1515 | ||
1516 | /* Set up the "saved terminal modes" of the inferior | |
1517 | based on what modes we are starting it with. */ | |
1518 | ||
1519 | target_terminal_init (); | |
1520 | ||
1521 | /* Install inferior's terminal modes. */ | |
1522 | ||
1523 | target_terminal_inferior (); | |
1524 | ||
1525 | /* remote_start (args); */ | |
1526 | /* trap_expected = 0; */ | |
1527 | /* insert_step_breakpoint (); FIXME, do we need this? */ | |
1528 | ||
1529 | /* Let 'er rip... */ | |
1530 | proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0); | |
1531 | ||
1532 | } | |
1533 | ||
1534 | ||
1535 | /* The process has died, clean up. */ | |
1536 | ||
1537 | static void | |
1538 | es1800_mourn_inferior () | |
1539 | { | |
1540 | remove_breakpoints (); | |
1541 | unpush_target (&es1800_child_ops); | |
1542 | generic_mourn_inferior (); /* Do all the proper things now */ | |
1543 | } | |
1544 | ||
1545 | /* ES1800-protocol specific routines */ | |
1546 | ||
1547 | /* Keep discarding input from the remote system, until STRING is found. | |
1548 | Let the user break out immediately. | |
1549 | string - the string to expect | |
1550 | nowait - break out if string not the emulator's first respond otherwise | |
c5aa993b JM |
1551 | read until string is found (== 0) */ |
1552 | ||
c906108c SS |
1553 | static void |
1554 | expect (string, nowait) | |
1555 | char *string; | |
c5aa993b | 1556 | int nowait; |
c906108c SS |
1557 | { |
1558 | char c; | |
1559 | char *p = string; | |
1560 | ||
1561 | immediate_quit++; | |
1562 | while (1) | |
1563 | { | |
1564 | c = readchar (); | |
1565 | if (isalpha (c)) | |
1566 | { | |
1567 | c = toupper (c); | |
1568 | } | |
1569 | if (c == toupper (*p)) | |
1570 | { | |
1571 | p++; | |
1572 | if (*p == '\0') | |
1573 | { | |
1574 | immediate_quit--; | |
1575 | return; | |
1576 | } | |
1577 | } | |
1578 | else if (!nowait) | |
1579 | { | |
1580 | p = string; | |
1581 | } | |
1582 | else | |
1583 | { | |
c5aa993b | 1584 | printf ("\'%s\' expected\n", string); |
c906108c | 1585 | printf ("char %d is %d", p - string, c); |
c5aa993b | 1586 | error ("\n"); |
c906108c SS |
1587 | } |
1588 | } | |
1589 | } | |
1590 | ||
1591 | /* Keep discarding input until we see the prompt. */ | |
1592 | ||
1593 | static void | |
1594 | expect_prompt () | |
1595 | { | |
1596 | expect (">", 0); | |
1597 | } | |
1598 | ||
1599 | ||
1600 | /* Read one character */ | |
1601 | ||
1602 | #ifdef DEBUG_STDIN | |
1603 | ||
1604 | /* read from stdin */ | |
1605 | ||
1606 | static int | |
1607 | readchar () | |
1608 | { | |
1609 | char buf[1]; | |
1610 | ||
1611 | buf[0] = '\0'; | |
1612 | printf ("readchar, give one character\n"); | |
1613 | read (0, buf, 1); | |
1614 | ||
1615 | #if defined (LOG_FILE) | |
1616 | putc (buf[0] & 0x7f, log_file); | |
1617 | #endif | |
1618 | ||
1619 | return (buf[0] & 0x7f); | |
1620 | } | |
1621 | ||
c5aa993b | 1622 | #else /* !DEBUG_STDIN */ |
c906108c SS |
1623 | |
1624 | /* Read a character from the remote system, doing all the fancy | |
1625 | timeout stuff. */ | |
1626 | ||
1627 | static int | |
1628 | readchar () | |
1629 | { | |
1630 | int ch; | |
1631 | ||
1632 | ch = SERIAL_READCHAR (es1800_desc, timeout); | |
1633 | ||
1634 | /* FIXME: doing an error() here will probably cause trouble, at least if from | |
1635 | es1800_wait. */ | |
1636 | if (ch == SERIAL_TIMEOUT) | |
1637 | error ("Timeout reading from remote system."); | |
1638 | else if (ch == SERIAL_ERROR) | |
1639 | perror_with_name ("remote read"); | |
1640 | ||
1641 | #if defined (LOG_FILE) | |
1642 | putc (ch & 0x7f, log_file); | |
1643 | fflush (log_file); | |
1644 | #endif | |
1645 | ||
1646 | return (ch); | |
1647 | } | |
1648 | ||
c5aa993b | 1649 | #endif /* DEBUG_STDIN */ |
c906108c SS |
1650 | |
1651 | ||
1652 | /* Send a command to the emulator and save the reply. | |
1653 | Report an error if we get an error reply. | |
1654 | string - the es1800 command | |
1655 | buf - containing the emulator reply on return | |
1656 | len - size of buf */ | |
1657 | ||
1658 | static void | |
1659 | send_with_reply (string, buf, len) | |
c5aa993b JM |
1660 | char *string, *buf; |
1661 | int len; | |
c906108c SS |
1662 | { |
1663 | send (string); | |
1664 | SERIAL_WRITE (es1800_desc, "\r", 1); | |
1665 | ||
1666 | #ifndef DEBUG_STDIN | |
1667 | expect (string, 1); | |
1668 | expect ("\r\n", 0); | |
1669 | #endif | |
1670 | ||
1671 | getmessage (buf, len); | |
1672 | } | |
1673 | ||
1674 | ||
1675 | /* Send the command in STR to the emulator adding \r. check | |
1676 | the echo for consistency. | |
1677 | string - the es1800 command */ | |
c5aa993b | 1678 | |
c906108c SS |
1679 | static void |
1680 | send_command (string) | |
1681 | char *string; | |
1682 | { | |
1683 | send (string); | |
1684 | SERIAL_WRITE (es1800_desc, "\r", 1); | |
1685 | ||
1686 | #ifndef DEBUG_STDIN | |
1687 | expect (string, 0); | |
1688 | expect_prompt (); | |
1689 | #endif | |
1690 | ||
1691 | } | |
1692 | ||
1693 | /* Send a string | |
1694 | string - the es1800 command */ | |
1695 | ||
1696 | static void | |
1697 | send (string) | |
1698 | char *string; | |
1699 | { | |
c5aa993b | 1700 | if (kiodebug) |
c906108c SS |
1701 | { |
1702 | fprintf (stderr, "Sending: %s\n", string); | |
1703 | } | |
1704 | SERIAL_WRITE (es1800_desc, string, strlen (string)); | |
1705 | } | |
1706 | ||
1707 | ||
1708 | /* Read a message from the emulator and store it in BUF. | |
1709 | buf - containing the emulator reply on return | |
1710 | len - size of buf */ | |
c5aa993b | 1711 | |
c906108c SS |
1712 | static void |
1713 | getmessage (buf, len) | |
1714 | char *buf; | |
1715 | int len; | |
1716 | { | |
1717 | char *bp; | |
1718 | int c; | |
1719 | int prompt_found = 0; | |
1720 | extern kiodebug; | |
1721 | ||
1722 | #if defined (LOG_FILE) | |
1723 | /* This is a convenient place to do this. The idea is to do it often | |
1724 | enough that we never lose much data if we terminate abnormally. */ | |
1725 | fflush (log_file); | |
1726 | #endif | |
1727 | ||
1728 | bp = buf; | |
1729 | c = readchar (); | |
1730 | do | |
1731 | { | |
c5aa993b | 1732 | if (c) |
c906108c | 1733 | { |
c5aa993b | 1734 | if (len-- < 2) /* char and terminaling NULL */ |
c906108c SS |
1735 | { |
1736 | error ("input buffer overrun\n"); | |
1737 | } | |
1738 | *bp++ = c; | |
1739 | } | |
1740 | c = readchar (); | |
1741 | if ((c == '>') && (*(bp - 1) == ' ')) | |
1742 | { | |
1743 | prompt_found = 1; | |
1744 | } | |
1745 | } | |
1746 | while (!prompt_found); | |
1747 | *bp = 0; | |
c5aa993b | 1748 | |
c906108c SS |
1749 | if (kiodebug) |
1750 | { | |
c5aa993b | 1751 | fprintf (stderr, "message received :%s\n", buf); |
c906108c SS |
1752 | } |
1753 | } | |
1754 | ||
1755 | static void | |
1756 | download (instream, from_tty, format) | |
c5aa993b | 1757 | FILE *instream; |
c906108c SS |
1758 | int from_tty; |
1759 | int format; | |
1760 | { | |
1761 | char c; | |
1762 | char buf[160]; | |
1763 | int i = 0; | |
1764 | ||
c5aa993b JM |
1765 | send_command ("SET #2,$1A"); /* reset char = ^Z */ |
1766 | send_command ("SET #3,$11,$13"); /* XON XOFF */ | |
c906108c SS |
1767 | if (format == 2) |
1768 | { | |
1769 | send_command ("SET #26,#2"); | |
1770 | } | |
1771 | else | |
1772 | { | |
c5aa993b | 1773 | send_command ("SET #26,#5"); /* Format=Extended Tekhex */ |
c906108c SS |
1774 | } |
1775 | send_command ("DFB = $10"); | |
1776 | send_command ("PUR"); | |
1777 | send_command ("CES"); | |
1778 | send ("DNL\r"); | |
1779 | expect ("DNL", 1); | |
1780 | if (from_tty) | |
1781 | { | |
1782 | printf (" 0 records loaded...\r"); | |
1783 | } | |
1784 | while (fgets (buf, 160, instream)) | |
c5aa993b JM |
1785 | { |
1786 | send (buf); | |
1787 | if (from_tty) | |
1788 | { | |
1789 | printf ("%5d\b\b\b\b\b", ++i); | |
1790 | fflush (stdout); | |
1791 | } | |
1792 | if ((c = readchar ()) != 006) | |
1793 | { | |
1794 | error ("expected ACK"); | |
1795 | } | |
1796 | } | |
c906108c SS |
1797 | if (from_tty) |
1798 | { | |
1799 | printf ("- All"); | |
1800 | } | |
1801 | } | |
1802 | ||
1803 | /* Additional commands */ | |
1804 | ||
1805 | #if defined (TIOCGETP) && defined (FNDELAY) && defined (EWOULDBLOCK) | |
1806 | #define PROVIDE_TRANSPARENT | |
1807 | #endif | |
1808 | ||
1809 | #ifdef PROVIDE_TRANSPARENT | |
1810 | /* Talk directly to the emulator | |
1811 | FIXME, uses busy wait, and is SUNOS (or at least BSD) specific */ | |
1812 | ||
c5aa993b JM |
1813 | /*ARGSUSED */ |
1814 | static void | |
c906108c SS |
1815 | es1800_transparent (args, from_tty) |
1816 | char *args; | |
1817 | int from_tty; | |
1818 | { | |
1819 | int console; | |
1820 | struct sgttyb modebl; | |
1821 | int fcflag; | |
1822 | int cc; | |
1823 | struct sgttyb console_mode_save; | |
1824 | int console_fc_save; | |
1825 | int es1800_fc_save; | |
1826 | int inputcnt = 80; | |
1827 | char inputbuf[80]; | |
1828 | int consolecnt = 0; | |
1829 | char consolebuf[80]; | |
1830 | int es1800_cnt = 0; | |
1831 | char es1800_buf[80]; | |
1832 | int i; | |
1833 | ||
1834 | dont_repeat (); | |
c5aa993b | 1835 | if (es1800_desc == NULL) |
c906108c SS |
1836 | { |
1837 | printf ("No emulator attached, type emulator-command first\n"); | |
1838 | return; | |
1839 | } | |
1840 | ||
1841 | printf ("\n"); | |
1842 | printf ("You are now communicating directly with the ES 1800 emulator.\n"); | |
1843 | printf ("To leave this mode (transparent mode), press ^E.\n"); | |
1844 | printf ("\n"); | |
1845 | printf (" >"); | |
1846 | fflush (stdout); | |
1847 | ||
c5aa993b | 1848 | if ((console = open ("/dev/tty", O_RDWR)) == -1) |
c906108c SS |
1849 | { |
1850 | perror_with_name ("/dev/tty:"); | |
1851 | } | |
1852 | ||
1853 | if ((fcflag = fcntl (console, F_GETFL, 0)) == -1) | |
1854 | { | |
1855 | perror_with_name ("fcntl console"); | |
1856 | } | |
1857 | ||
1858 | console_fc_save = fcflag; | |
1859 | fcflag = fcflag | FNDELAY; | |
1860 | ||
1861 | if (fcntl (console, F_SETFL, fcflag) == -1) | |
1862 | { | |
1863 | perror_with_name ("fcntl console"); | |
1864 | } | |
1865 | ||
1866 | if (ioctl (console, TIOCGETP, &modebl)) | |
1867 | { | |
1868 | perror_with_name ("ioctl console"); | |
1869 | } | |
1870 | ||
1871 | console_mode_save = modebl; | |
c5aa993b | 1872 | modebl.sg_flags = RAW; |
c906108c SS |
1873 | |
1874 | if (ioctl (console, TIOCSETP, &modebl)) | |
1875 | { | |
1876 | perror_with_name ("ioctl console"); | |
1877 | } | |
1878 | ||
1879 | if ((fcflag = fcntl (es1800_desc->fd, F_GETFL, 0)) == -1) | |
1880 | { | |
1881 | perror_with_name ("fcntl serial"); | |
1882 | } | |
1883 | ||
1884 | es1800_fc_save = fcflag; | |
1885 | fcflag = fcflag | FNDELAY; | |
1886 | ||
1887 | if (fcntl (es1800_desc->fd, F_SETFL, fcflag) == -1) | |
1888 | { | |
1889 | perror_with_name ("fcntl serial"); | |
1890 | } | |
1891 | ||
1892 | while (1) | |
c5aa993b | 1893 | { |
c906108c SS |
1894 | cc = read (console, inputbuf, inputcnt); |
1895 | if (cc != -1) | |
1896 | { | |
1897 | if ((*inputbuf & 0x7f) == 0x05) | |
1898 | { | |
1899 | break; | |
1900 | } | |
c5aa993b | 1901 | for (i = 0; i < cc;) |
c906108c SS |
1902 | { |
1903 | es1800_buf[es1800_cnt++] = inputbuf[i++]; | |
1904 | } | |
1905 | if ((cc = SERIAL_WRITE (es1800_desc, es1800_buf, es1800_cnt)) == -1) | |
1906 | { | |
1907 | perror_with_name ("FEL! write:"); | |
1908 | } | |
1909 | es1800_cnt -= cc; | |
c5aa993b | 1910 | if (es1800_cnt && cc) |
c906108c SS |
1911 | { |
1912 | for (i = 0; i < es1800_cnt; i++) | |
1913 | { | |
c5aa993b | 1914 | es1800_buf[i] = es1800_buf[cc + i]; |
c906108c SS |
1915 | } |
1916 | } | |
1917 | } | |
1918 | else if (errno != EWOULDBLOCK) | |
1919 | { | |
1920 | perror_with_name ("FEL! read:"); | |
1921 | } | |
c5aa993b JM |
1922 | |
1923 | cc = read (es1800_desc->fd, inputbuf, inputcnt); | |
c906108c SS |
1924 | if (cc != -1) |
1925 | { | |
c5aa993b | 1926 | for (i = 0; i < cc;) |
c906108c SS |
1927 | { |
1928 | consolebuf[consolecnt++] = inputbuf[i++]; | |
1929 | } | |
c5aa993b | 1930 | if ((cc = write (console, consolebuf, consolecnt)) == -1) |
c906108c SS |
1931 | { |
1932 | perror_with_name ("FEL! write:"); | |
1933 | } | |
1934 | consolecnt -= cc; | |
c5aa993b | 1935 | if (consolecnt && cc) |
c906108c SS |
1936 | { |
1937 | for (i = 0; i < consolecnt; i++) | |
1938 | { | |
c5aa993b | 1939 | consolebuf[i] = consolebuf[cc + i]; |
c906108c SS |
1940 | } |
1941 | } | |
1942 | } | |
1943 | else if (errno != EWOULDBLOCK) | |
1944 | { | |
1945 | perror_with_name ("FEL! read:"); | |
1946 | } | |
1947 | } | |
1948 | ||
1949 | console_fc_save = console_fc_save & !FNDELAY; | |
1950 | if (fcntl (console, F_SETFL, console_fc_save) == -1) | |
1951 | { | |
1952 | perror_with_name ("FEL! fcntl"); | |
1953 | } | |
1954 | ||
1955 | if (ioctl (console, TIOCSETP, &console_mode_save)) | |
1956 | { | |
1957 | perror_with_name ("FEL! ioctl"); | |
1958 | } | |
1959 | ||
1960 | close (console); | |
1961 | ||
1962 | if (fcntl (es1800_desc->fd, F_SETFL, es1800_fc_save) == -1) | |
1963 | { | |
1964 | perror_with_name ("FEL! fcntl"); | |
1965 | } | |
1966 | ||
1967 | printf ("\n"); | |
1968 | ||
1969 | } | |
1970 | #endif /* PROVIDE_TRANSPARENT */ | |
1971 | ||
1972 | static void | |
1973 | es1800_init_break (args, from_tty) | |
1974 | char *args; | |
1975 | int from_tty; | |
1976 | { | |
1977 | CORE_ADDR memaddress = 0; | |
1978 | char buf[PBUFSIZ]; | |
1979 | char base_addr[4]; | |
1980 | char *space_index; | |
1981 | char *p; | |
1982 | int k; | |
1983 | ||
1984 | if (args == NULL) | |
1985 | { | |
1986 | error_no_arg ("a trap vector"); | |
1987 | } | |
1988 | ||
1989 | if (!(space_index = strchr (args, ' '))) | |
1990 | { | |
1991 | error ("Two arguments needed (trap vector and address of break routine).\n"); | |
1992 | } | |
1993 | ||
1994 | *space_index = '\0'; | |
1995 | ||
1996 | es1800_break_vec = strtol (args, (char **) NULL, 0); | |
1997 | es1800_break_address = parse_and_eval_address (space_index + 1); | |
1998 | ||
1999 | es1800_create_break_insn (es1800_break_insn, es1800_break_vec); | |
2000 | ||
2001 | if (m68020) | |
2002 | { | |
2003 | send_with_reply ("VBR ", buf, sizeof (buf)); | |
2004 | p = buf; | |
2005 | for (k = 0; k < 4; k++) | |
2006 | { | |
c5aa993b | 2007 | if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0)) |
c906108c SS |
2008 | { |
2009 | error ("Emulator reply is too short: %s", buf); | |
2010 | } | |
c5aa993b | 2011 | base_addr[k] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]); |
c906108c SS |
2012 | } |
2013 | /* base addr of exception vector table */ | |
c5aa993b | 2014 | memaddress = *((CORE_ADDR *) base_addr); |
c906108c SS |
2015 | } |
2016 | ||
c5aa993b | 2017 | memaddress += (es1800_break_vec + 32) * 4; /* address of trap vector */ |
c906108c SS |
2018 | |
2019 | sprintf (buf, "@.L%lx=$%lx", memaddress, es1800_break_address); | |
c5aa993b JM |
2020 | send_command (buf); /* set the address of the break routine in the */ |
2021 | /* trap vector */ | |
2022 | ||
2023 | sprintf (buf, "@.L%lx=$4E714E71", es1800_break_address); /* NOP; NOP */ | |
c906108c | 2024 | send_command (buf); |
c5aa993b | 2025 | sprintf (buf, "@.L%lx=$4E714E73", es1800_break_address + 4); /* NOP; RTE */ |
c906108c | 2026 | send_command (buf); |
c5aa993b | 2027 | |
c906108c SS |
2028 | sprintf (buf, "AC2=$%lx", es1800_break_address + 4); |
2029 | /* breakpoint at es1800-break_address */ | |
2030 | send_command (buf); | |
c5aa993b | 2031 | send_command ("WHEN AC2 THEN BRK"); /* ie in exception routine */ |
c906108c SS |
2032 | |
2033 | if (from_tty) | |
2034 | { | |
2035 | printf ("Breakpoint (trap $%x) routine at address: %lx\n", | |
2036 | es1800_break_vec, es1800_break_address); | |
2037 | } | |
c5aa993b | 2038 | } |
c906108c SS |
2039 | |
2040 | static void | |
2041 | es1800_child_open (arg, from_tty) | |
2042 | char *arg; | |
2043 | int from_tty; | |
2044 | { | |
2045 | error ("Use the \"run\" command to start a child process."); | |
2046 | } | |
2047 | ||
2048 | static void | |
2049 | es1800_child_detach (args, from_tty) | |
2050 | char *args; | |
2051 | int from_tty; | |
2052 | { | |
2053 | if (args) | |
2054 | { | |
2055 | error ("Argument given to \"detach\" when remotely debugging."); | |
2056 | } | |
c5aa993b | 2057 | |
c906108c SS |
2058 | pop_target (); |
2059 | if (from_tty) | |
2060 | { | |
2061 | printf ("Ending debugging the process %d.\n", inferior_pid); | |
2062 | } | |
2063 | } | |
2064 | ||
2065 | ||
2066 | /* Define the target subroutine names */ | |
2067 | ||
c5aa993b | 2068 | struct target_ops es1800_ops; |
c906108c | 2069 | |
c5aa993b JM |
2070 | static void |
2071 | init_es1800_ops (void) | |
c906108c | 2072 | { |
c5aa993b JM |
2073 | es1800_ops.to_shortname = "es1800"; |
2074 | es1800_ops.to_longname = "Remote serial target in ES1800-emulator protocol"; | |
2075 | es1800_ops.to_doc = "Remote debugging on the es1800 emulator via a serial line.\n\ | |
2076 | Specify the serial device it is connected to (e.g. /dev/ttya)."; | |
2077 | es1800_ops.to_open = es1800_open; | |
2078 | es1800_ops.to_close = es1800_close; | |
2079 | es1800_ops.to_attach = es1800_attach; | |
2080 | es1800_ops.to_post_attach = NULL; | |
c906108c | 2081 | es1800_ops.to_require_attach = NULL; |
c5aa993b | 2082 | es1800_ops.to_detach = es1800_detach; |
c906108c | 2083 | es1800_ops.to_require_detach = NULL; |
c5aa993b JM |
2084 | es1800_ops.to_resume = es1800_resume; |
2085 | es1800_ops.to_wait = NULL; | |
2086 | es1800_ops.to_post_wait = NULL; | |
2087 | es1800_ops.to_fetch_registers = NULL; | |
2088 | es1800_ops.to_store_registers = NULL; | |
2089 | es1800_ops.to_prepare_to_store = es1800_prepare_to_store; | |
2090 | es1800_ops.to_xfer_memory = es1800_xfer_inferior_memory; | |
2091 | es1800_ops.to_files_info = es1800_files_info; | |
2092 | es1800_ops.to_insert_breakpoint = es1800_insert_breakpoint; | |
2093 | es1800_ops.to_remove_breakpoint = es1800_remove_breakpoint; | |
2094 | es1800_ops.to_terminal_init = NULL; | |
2095 | es1800_ops.to_terminal_inferior = NULL; | |
2096 | es1800_ops.to_terminal_ours_for_output = NULL; | |
2097 | es1800_ops.to_terminal_ours = NULL; | |
2098 | es1800_ops.to_terminal_info = NULL; | |
2099 | es1800_ops.to_kill = NULL; | |
2100 | es1800_ops.to_load = es1800_load; | |
2101 | es1800_ops.to_lookup_symbol = NULL; | |
2102 | es1800_ops.to_create_inferior = es1800_create_inferior; | |
c906108c SS |
2103 | es1800_ops.to_post_startup_inferior = NULL; |
2104 | es1800_ops.to_acknowledge_created_inferior = NULL; | |
c5aa993b | 2105 | es1800_ops.to_clone_and_follow_inferior = NULL; |
c906108c SS |
2106 | es1800_ops.to_post_follow_inferior_by_clone = NULL; |
2107 | es1800_ops.to_insert_fork_catchpoint = NULL; | |
2108 | es1800_ops.to_remove_fork_catchpoint = NULL; | |
2109 | es1800_ops.to_insert_vfork_catchpoint = NULL; | |
c5aa993b | 2110 | es1800_ops.to_remove_vfork_catchpoint = NULL; |
c906108c | 2111 | es1800_ops.to_has_forked = NULL; |
c5aa993b JM |
2112 | es1800_ops.to_has_vforked = NULL; |
2113 | es1800_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
c906108c SS |
2114 | es1800_ops.to_post_follow_vfork = NULL; |
2115 | es1800_ops.to_insert_exec_catchpoint = NULL; | |
2116 | es1800_ops.to_remove_exec_catchpoint = NULL; | |
2117 | es1800_ops.to_has_execd = NULL; | |
2118 | es1800_ops.to_reported_exec_events_per_exec_call = NULL; | |
2119 | es1800_ops.to_has_exited = NULL; | |
c5aa993b JM |
2120 | es1800_ops.to_mourn_inferior = NULL; |
2121 | es1800_ops.to_can_run = 0; | |
2122 | es1800_ops.to_notice_signals = 0; | |
2123 | es1800_ops.to_thread_alive = 0; | |
2124 | es1800_ops.to_stop = 0; | |
c906108c | 2125 | es1800_ops.to_pid_to_exec_file = NULL; |
c5aa993b JM |
2126 | es1800_ops.to_core_file_to_sym_file = NULL; |
2127 | es1800_ops.to_stratum = core_stratum; | |
2128 | es1800_ops.DONT_USE = 0; | |
2129 | es1800_ops.to_has_all_memory = 0; | |
2130 | es1800_ops.to_has_memory = 1; | |
2131 | es1800_ops.to_has_stack = 0; | |
2132 | es1800_ops.to_has_registers = 0; | |
2133 | es1800_ops.to_has_execution = 0; | |
2134 | es1800_ops.to_sections = NULL; | |
2135 | es1800_ops.to_sections_end = NULL; | |
2136 | es1800_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
2137 | } |
2138 | ||
2139 | /* Define the target subroutine names */ | |
2140 | ||
c5aa993b | 2141 | struct target_ops es1800_child_ops; |
c906108c | 2142 | |
c5aa993b JM |
2143 | static void |
2144 | init_es1800_child_ops (void) | |
c906108c | 2145 | { |
c5aa993b JM |
2146 | es1800_child_ops.to_shortname = "es1800_process"; |
2147 | es1800_child_ops.to_longname = "Remote serial target in ES1800-emulator protocol"; | |
2148 | es1800_child_ops.to_doc = "Remote debugging on the es1800 emulator via a serial line.\n\ | |
c906108c | 2149 | Specify the serial device it is connected to (e.g. /dev/ttya)."; |
c5aa993b JM |
2150 | es1800_child_ops.to_open = es1800_child_open; |
2151 | es1800_child_ops.to_close = NULL; | |
2152 | es1800_child_ops.to_attach = es1800_attach; | |
c906108c | 2153 | es1800_child_ops.to_post_attach = NULL; |
c5aa993b JM |
2154 | es1800_child_ops.to_require_attach = NULL; |
2155 | es1800_child_ops.to_detach = es1800_child_detach; | |
2156 | es1800_child_ops.to_require_detach = NULL; | |
2157 | es1800_child_ops.to_resume = es1800_resume; | |
2158 | es1800_child_ops.to_wait = es1800_wait; | |
2159 | es1800_child_ops.to_post_wait = NULL; | |
2160 | es1800_child_ops.to_fetch_registers = es1800_fetch_register; | |
2161 | es1800_child_ops.to_store_registers = es1800_store_register; | |
2162 | es1800_child_ops.to_prepare_to_store = es1800_prepare_to_store; | |
2163 | es1800_child_ops.to_xfer_memory = es1800_xfer_inferior_memory; | |
2164 | es1800_child_ops.to_files_info = es1800_files_info; | |
2165 | es1800_child_ops.to_insert_breakpoint = es1800_insert_breakpoint; | |
2166 | es1800_child_ops.to_remove_breakpoint = es1800_remove_breakpoint; | |
2167 | es1800_child_ops.to_terminal_init = NULL; | |
2168 | es1800_child_ops.to_terminal_inferior = NULL; | |
2169 | es1800_child_ops.to_terminal_ours_for_output = NULL; | |
2170 | es1800_child_ops.to_terminal_ours = NULL; | |
2171 | es1800_child_ops.to_terminal_info = NULL; | |
2172 | es1800_child_ops.to_kill = es1800_kill; | |
2173 | es1800_child_ops.to_load = es1800_load; | |
2174 | es1800_child_ops.to_lookup_symbol = NULL; | |
2175 | es1800_child_ops.to_create_inferior = es1800_create_inferior; | |
c906108c SS |
2176 | es1800_child_ops.to_post_startup_inferior = NULL; |
2177 | es1800_child_ops.to_acknowledge_created_inferior = NULL; | |
2178 | es1800_child_ops.to_clone_and_follow_inferior = NULL; | |
2179 | es1800_child_ops.to_post_follow_inferior_by_clone = NULL; | |
2180 | es1800_child_ops.to_insert_fork_catchpoint = NULL; | |
2181 | es1800_child_ops.to_remove_fork_catchpoint = NULL; | |
2182 | es1800_child_ops.to_insert_vfork_catchpoint = NULL; | |
c5aa993b | 2183 | es1800_child_ops.to_remove_vfork_catchpoint = NULL; |
c906108c | 2184 | es1800_child_ops.to_has_forked = NULL; |
c5aa993b | 2185 | es1800_child_ops.to_has_vforked = NULL; |
c906108c SS |
2186 | es1800_child_ops.to_can_follow_vfork_prior_to_exec = NULL; |
2187 | es1800_child_ops.to_post_follow_vfork = NULL; | |
2188 | es1800_child_ops.to_insert_exec_catchpoint = NULL; | |
2189 | es1800_child_ops.to_remove_exec_catchpoint = NULL; | |
2190 | es1800_child_ops.to_has_execd = NULL; | |
2191 | es1800_child_ops.to_reported_exec_events_per_exec_call = NULL; | |
2192 | es1800_child_ops.to_has_exited = NULL; | |
c5aa993b JM |
2193 | es1800_child_ops.to_mourn_inferior = es1800_mourn_inferior; |
2194 | es1800_child_ops.to_can_run = 0; | |
2195 | es1800_child_ops.to_notice_signals = 0; | |
2196 | es1800_child_ops.to_thread_alive = 0; | |
2197 | es1800_child_ops.to_stop = 0; | |
c906108c SS |
2198 | es1800_child_ops.to_pid_to_exec_file = NULL; |
2199 | es1800_child_ops.to_core_file_to_sym_file = NULL; | |
c5aa993b JM |
2200 | es1800_child_ops.to_stratum = process_stratum; |
2201 | es1800_child_ops.DONT_USE = 0; | |
2202 | es1800_child_ops.to_has_all_memory = 1; | |
2203 | es1800_child_ops.to_has_memory = 1; | |
2204 | es1800_child_ops.to_has_stack = 1; | |
2205 | es1800_child_ops.to_has_registers = 1; | |
2206 | es1800_child_ops.to_has_execution = 1; | |
2207 | es1800_child_ops.to_sections = NULL; | |
2208 | es1800_child_ops.to_sections_end = NULL; | |
2209 | es1800_child_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
2210 | } |
2211 | ||
2212 | void | |
2213 | _initialize_es1800 () | |
2214 | { | |
c5aa993b JM |
2215 | init_es1800_ops (); |
2216 | init_es1800_child_ops (); | |
c906108c SS |
2217 | add_target (&es1800_ops); |
2218 | add_target (&es1800_child_ops); | |
2219 | #ifdef PROVIDE_TRANSPARENT | |
2220 | add_com ("transparent", class_support, es1800_transparent, | |
2221 | "Start transparent communication with the ES 1800 emulator."); | |
2222 | #endif /* PROVIDE_TRANSPARENT */ | |
2223 | add_com ("init_break", class_support, es1800_init_break, | |
c5aa993b | 2224 | "Download break routine and initialize break facility on ES 1800"); |
c906108c | 2225 | } |