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" | |
03f2053f | 107 | #include "gdb_wait.h" |
c906108c SS |
108 | #include "command.h" |
109 | #include "remote-utils.h" | |
110 | #include "gdbcore.h" | |
111 | #include "serial.h" | |
112 | ||
113 | /* Prototypes for local functions */ | |
114 | ||
a14ed312 | 115 | static void es1800_child_detach (char *, int); |
c906108c | 116 | |
a14ed312 | 117 | static void es1800_child_open (char *, int); |
c906108c | 118 | |
a14ed312 | 119 | static void es1800_transparent (char *, int); |
c906108c | 120 | |
a14ed312 | 121 | static void es1800_create_inferior (char *, char *, char **); |
c906108c | 122 | |
a14ed312 | 123 | static void es1800_load (char *, int); |
c906108c | 124 | |
a14ed312 | 125 | static void es1800_kill (void); |
c906108c | 126 | |
a14ed312 | 127 | static int verify_break (int); |
c906108c | 128 | |
a14ed312 | 129 | static int es1800_remove_breakpoint (CORE_ADDR, char *); |
c906108c | 130 | |
a14ed312 | 131 | static int es1800_insert_breakpoint (CORE_ADDR, char *); |
c906108c | 132 | |
a14ed312 | 133 | static void es1800_files_info (struct target_ops *); |
c906108c SS |
134 | |
135 | static int | |
a14ed312 KB |
136 | es1800_xfer_inferior_memory (CORE_ADDR, char *, int, int, |
137 | struct target_ops *); | |
c906108c | 138 | |
a14ed312 | 139 | static void es1800_prepare_to_store (void); |
c906108c | 140 | |
a14ed312 | 141 | static int es1800_wait (int, struct target_waitstatus *); |
c906108c | 142 | |
a14ed312 | 143 | static void es1800_resume (int, int, enum target_signal); |
c906108c | 144 | |
a14ed312 | 145 | static void es1800_detach (char *, int); |
c906108c | 146 | |
a14ed312 | 147 | static void es1800_attach (char *, int); |
c906108c | 148 | |
a14ed312 | 149 | static int damn_b (char *); |
c906108c | 150 | |
a14ed312 | 151 | static void es1800_open (char *, int); |
c906108c | 152 | |
a14ed312 | 153 | static void es1800_timer (void); |
c906108c | 154 | |
a14ed312 | 155 | static void es1800_reset (char *); |
c906108c | 156 | |
a14ed312 | 157 | static void es1800_request_quit (void); |
c906108c | 158 | |
a14ed312 | 159 | static int readchar (void); |
c906108c | 160 | |
a14ed312 | 161 | static void expect (char *, int); |
c906108c | 162 | |
a14ed312 | 163 | static void expect_prompt (void); |
c906108c | 164 | |
a14ed312 | 165 | static void download (FILE *, int, int); |
c906108c SS |
166 | |
167 | #if 0 | |
a14ed312 | 168 | static void bfd_copy (bfd *, bfd *); |
c906108c SS |
169 | #endif |
170 | ||
a14ed312 | 171 | static void get_break_addr (int, CORE_ADDR *); |
c906108c | 172 | |
a14ed312 | 173 | static int fromhex (int); |
c906108c | 174 | |
a14ed312 | 175 | static int tohex (int); |
c906108c | 176 | |
a14ed312 | 177 | static void es1800_close (int); |
c906108c | 178 | |
a14ed312 | 179 | static void es1800_fetch_registers (void); |
c906108c | 180 | |
a14ed312 | 181 | static void es1800_fetch_register (int); |
c906108c | 182 | |
a14ed312 | 183 | static void es1800_store_register (int); |
c906108c | 184 | |
a14ed312 | 185 | static void es1800_read_bytes (CORE_ADDR, char *, int); |
c906108c | 186 | |
a14ed312 | 187 | static void es1800_write_bytes (CORE_ADDR, char *, int); |
c906108c | 188 | |
a14ed312 | 189 | static void send_with_reply (char *, char *, int); |
c906108c | 190 | |
a14ed312 | 191 | static void send_command (char *); |
c906108c | 192 | |
a14ed312 | 193 | static void send (char *); |
c906108c | 194 | |
a14ed312 | 195 | static void getmessage (char *, int); |
c906108c | 196 | |
a14ed312 | 197 | static void es1800_mourn_inferior (void); |
c906108c | 198 | |
a14ed312 | 199 | static void es1800_create_break_insn (char *, int); |
c906108c | 200 | |
a14ed312 | 201 | static void es1800_init_break (char *, int); |
c906108c SS |
202 | |
203 | /* Local variables */ | |
204 | ||
205 | /* FIXME: Convert this to use "set remotedebug" instead. */ | |
206 | #define LOG_FILE "es1800.log" | |
207 | #if defined (LOG_FILE) | |
208 | static FILE *log_file; | |
209 | #endif | |
210 | ||
c5aa993b | 211 | extern struct target_ops es1800_ops; /* Forward decl */ |
c906108c SS |
212 | extern struct target_ops es1800_child_ops; /* Forward decl */ |
213 | ||
214 | static int kiodebug; | |
c5aa993b JM |
215 | static int timeout = 100; |
216 | static char *savename; /* Name of i/o device used */ | |
c906108c | 217 | static serial_ttystate es1800_saved_ttystate; |
c5aa993b | 218 | static int es1800_fc_save; /* Save fcntl state */ |
c906108c SS |
219 | |
220 | /* indicates that the emulator uses 32-bit data-adress (68020-mode) | |
221 | instead of 24-bit (68000 -mode) */ | |
222 | ||
223 | static int m68020; | |
224 | ||
225 | #define MODE (m68020 ? "M68020" : "M68000" ) | |
226 | #define ES1800_BREAK_VEC (0xf) | |
227 | ||
228 | /* Descriptor for I/O to remote machine. Initialize it to NULL so that | |
229 | es1800_open knows that we don't have a file open when the program | |
230 | starts. */ | |
231 | ||
232 | static serial_t es1800_desc = NULL; | |
233 | ||
234 | #define PBUFSIZ 1000 | |
235 | #define HDRLEN sizeof("@.BAAAAAAAA=$VV\r") | |
236 | ||
237 | /* Maximum number of bytes to read/write at once. The value here | |
238 | is chosen to fill up a packet. */ | |
239 | ||
240 | #define MAXBUFBYTES ((PBUFSIZ-150)*16/75 ) | |
241 | ||
242 | static int es1800_break_vec = 0; | |
243 | static char es1800_break_insn[2]; | |
244 | static long es1800_break_address; | |
c5aa993b | 245 | static void (*old_sigint) (); /* Old signal-handler for sigint */ |
c906108c SS |
246 | static jmp_buf interrupt; |
247 | ||
248 | /* Local signalhandler to allow breaking tranfers or program run. | |
249 | Rely on global variables: old_sigint(), interrupt */ | |
250 | ||
251 | static void | |
fba45db2 | 252 | es1800_request_quit (void) |
c906108c SS |
253 | { |
254 | /* restore original signalhandler */ | |
255 | signal (SIGINT, old_sigint); | |
256 | longjmp (interrupt, 1); | |
257 | } | |
258 | ||
259 | ||
260 | /* Reset emulator. | |
261 | Sending reset character(octal 32) to emulator. | |
c5aa993b | 262 | quit - return to '(esgdb)' prompt or continue */ |
c906108c SS |
263 | |
264 | static void | |
fba45db2 | 265 | es1800_reset (char *quit) |
c906108c SS |
266 | { |
267 | char buf[80]; | |
268 | ||
269 | if (quit) | |
270 | { | |
271 | printf ("\nResetting emulator... "); | |
272 | } | |
273 | strcpy (buf, "\032"); | |
274 | send (buf); | |
275 | expect_prompt (); | |
276 | if (quit) | |
277 | { | |
278 | error ("done\n"); | |
279 | } | |
280 | } | |
281 | ||
282 | ||
283 | /* Open a connection to a remote debugger and push the new target | |
284 | onto the stack. Check if the emulator is responding and find out | |
285 | what kind of processor the emulator is connected to. | |
286 | Initiate the breakpoint handling in the emulator. | |
287 | ||
288 | name - the filename used for communication (ex. '/dev/tta') | |
289 | from_tty - says whether to be verbose or not */ | |
290 | ||
291 | static void | |
fba45db2 | 292 | es1800_open (char *name, int from_tty) |
c906108c SS |
293 | { |
294 | char buf[PBUFSIZ]; | |
295 | char *p; | |
296 | int i, fcflag; | |
297 | ||
298 | m68020 = 0; | |
299 | ||
c5aa993b | 300 | if (!name) /* no device name given in target command */ |
c906108c SS |
301 | { |
302 | error_no_arg ("serial port device name"); | |
303 | } | |
304 | ||
305 | target_preopen (from_tty); | |
306 | es1800_close (0); | |
307 | ||
308 | /* open the device and configure it for communication */ | |
309 | ||
310 | #ifndef DEBUG_STDIN | |
311 | ||
312 | es1800_desc = SERIAL_OPEN (name); | |
313 | if (es1800_desc == NULL) | |
314 | { | |
315 | perror_with_name (name); | |
316 | } | |
317 | savename = savestring (name, strlen (name)); | |
318 | ||
319 | es1800_saved_ttystate = SERIAL_GET_TTY_STATE (es1800_desc); | |
320 | ||
c2c6d25f | 321 | if ((fcflag = fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_GETFL, 0)) == -1) |
c906108c SS |
322 | { |
323 | perror_with_name ("fcntl serial"); | |
324 | } | |
325 | es1800_fc_save = fcflag; | |
326 | ||
c5aa993b | 327 | fcflag = (fcflag & (FREAD | FWRITE)); /* mask out any funny stuff */ |
c2c6d25f | 328 | if (fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_SETFL, fcflag) == -1) |
c906108c SS |
329 | { |
330 | perror_with_name ("fcntl serial"); | |
331 | } | |
332 | ||
333 | if (baud_rate != -1) | |
334 | { | |
335 | if (SERIAL_SETBAUDRATE (es1800_desc, baud_rate)) | |
336 | { | |
337 | SERIAL_CLOSE (es1800_desc); | |
338 | perror_with_name (name); | |
339 | } | |
340 | } | |
341 | ||
342 | SERIAL_RAW (es1800_desc); | |
343 | ||
344 | /* If there is something sitting in the buffer we might take it as a | |
345 | response to a command, which would be bad. */ | |
346 | SERIAL_FLUSH_INPUT (es1800_desc); | |
347 | ||
c5aa993b | 348 | #endif /* DEBUG_STDIN */ |
c906108c SS |
349 | |
350 | push_target (&es1800_ops); /* Switch to using remote target now */ | |
351 | if (from_tty) | |
352 | { | |
353 | printf ("Remote ES1800 debugging using %s\n", name); | |
354 | } | |
355 | ||
356 | #if defined (LOG_FILE) | |
357 | ||
358 | log_file = fopen (LOG_FILE, "w"); | |
359 | if (log_file == NULL) | |
360 | { | |
361 | perror_with_name (LOG_FILE); | |
362 | } | |
363 | ||
c5aa993b | 364 | #endif /* LOG_FILE */ |
c906108c SS |
365 | |
366 | /* Hello? Are you there?, also check mode */ | |
367 | ||
368 | /* send_with_reply( "DB 0 TO 1", buf, sizeof(buf)); */ | |
c5aa993b | 369 | /* for (p = buf, i = 0; *p++ =='0';) *//* count the number of zeros */ |
c906108c SS |
370 | /* i++; */ |
371 | ||
372 | send ("\032"); | |
c5aa993b | 373 | getmessage (buf, sizeof (buf)); /* send reset character */ |
c906108c SS |
374 | |
375 | if (from_tty) | |
376 | { | |
377 | printf ("Checking mode.... "); | |
378 | } | |
c5aa993b | 379 | /* m68020 = (i==8); *//* if eight zeros then we are in m68020 mode */ |
c906108c | 380 | |
c5aa993b | 381 | /* What kind of processor am i talking to ? */ |
c906108c | 382 | p = buf; |
c5aa993b JM |
383 | while (*p++ != '\n') |
384 | {; | |
385 | } | |
386 | while (*p++ != '\n') | |
387 | {; | |
388 | } | |
389 | while (*p++ != '\n') | |
390 | {; | |
391 | } | |
392 | for (i = 0; i < 20; i++, p++) | |
393 | {; | |
394 | } | |
c906108c SS |
395 | m68020 = !strncmp (p, "68020", 5); |
396 | if (from_tty) | |
397 | { | |
398 | printf ("You are in %s(%c%c%c%c%c)-mode\n", MODE, p[0], p[1], p[2], | |
399 | p[3], p[4]); | |
400 | } | |
401 | ||
402 | /* if no init_break statement is present in .gdb file we have to check | |
403 | whether to download a breakpoint routine or not */ | |
404 | ||
405 | #if 0 | |
406 | if ((es1800_break_vec == 0) || (verify_break (es1800_break_vec) != 0) | |
407 | && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? ")) | |
408 | { | |
409 | CORE_ADDR memaddress; | |
410 | printf ("Give the start address of the breakpoint routine: "); | |
411 | scanf ("%li", &memaddress); | |
412 | es1800_init_break ((es1800_break_vec ? es1800_break_vec : | |
413 | ES1800_BREAK_VEC), memaddress); | |
414 | } | |
415 | #endif | |
416 | ||
417 | } | |
418 | ||
419 | /* Close out all files and local state before this target loses control. | |
c5aa993b | 420 | quitting - are we quitting gdb now? */ |
c906108c SS |
421 | |
422 | static void | |
fba45db2 | 423 | es1800_close (int quitting) |
c906108c SS |
424 | { |
425 | if (es1800_desc != NULL) | |
426 | { | |
427 | printf ("\nClosing connection to emulator...\n"); | |
428 | if (SERIAL_SET_TTY_STATE (es1800_desc, es1800_saved_ttystate) < 0) | |
429 | print_sys_errmsg ("warning: unable to restore tty state", errno); | |
c2c6d25f | 430 | fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_SETFL, es1800_fc_save); |
c906108c SS |
431 | SERIAL_CLOSE (es1800_desc); |
432 | es1800_desc = NULL; | |
433 | } | |
434 | if (savename != NULL) | |
435 | { | |
436 | free (savename); | |
437 | } | |
438 | savename = NULL; | |
439 | ||
440 | #if defined (LOG_FILE) | |
441 | ||
442 | if (log_file != NULL) | |
443 | { | |
444 | if (ferror (log_file)) | |
445 | { | |
446 | printf ("Error writing log file.\n"); | |
447 | } | |
448 | if (fclose (log_file) != 0) | |
449 | { | |
450 | printf ("Error closing log file.\n"); | |
451 | } | |
452 | log_file = NULL; | |
453 | } | |
454 | ||
c5aa993b | 455 | #endif /* LOG_FILE */ |
c906108c SS |
456 | |
457 | } | |
458 | ||
459 | /* Attaches to a process on the target side | |
c5aa993b JM |
460 | proc_id - the id of the process to be attached. |
461 | from_tty - says whether to be verbose or not */ | |
c906108c SS |
462 | |
463 | static void | |
fba45db2 | 464 | es1800_attach (char *args, int from_tty) |
c906108c SS |
465 | { |
466 | error ("Cannot attach to pid %s, this feature is not implemented yet.", | |
467 | args); | |
468 | } | |
469 | ||
470 | ||
471 | /* Takes a program previously attached to and detaches it. | |
472 | We better not have left any breakpoints | |
473 | in the program or it'll die when it hits one. | |
474 | Close the open connection to the remote debugger. | |
475 | Use this when you want to detach and do something else | |
476 | with your gdb. | |
c5aa993b | 477 | |
c906108c SS |
478 | args - arguments given to the 'detach' command |
479 | from_tty - says whether to be verbose or not */ | |
480 | ||
481 | static void | |
fba45db2 | 482 | es1800_detach (char *args, int from_tty) |
c906108c SS |
483 | { |
484 | if (args) | |
485 | { | |
486 | error ("Argument given to \"detach\" when remotely debugging."); | |
487 | } | |
488 | pop_target (); | |
489 | if (from_tty) | |
490 | { | |
491 | printf ("Ending es1800 remote debugging.\n"); | |
492 | } | |
493 | } | |
494 | ||
495 | ||
496 | /* Tell the remote machine to resume. | |
497 | step - single-step or run free | |
498 | siggnal - the signal value to be given to the target (0 = no signal) */ | |
499 | ||
500 | static void | |
fba45db2 | 501 | es1800_resume (int pid, int step, enum target_signal siggnal) |
c906108c SS |
502 | { |
503 | char buf[PBUFSIZ]; | |
504 | ||
505 | if (siggnal) | |
506 | { | |
507 | error ("Can't send signals to a remote system."); | |
508 | } | |
509 | if (step) | |
510 | { | |
c5aa993b | 511 | strcpy (buf, "STP\r"); |
c906108c SS |
512 | send (buf); |
513 | } | |
514 | else | |
515 | { | |
516 | send_command ("RBK"); | |
517 | } | |
518 | } | |
519 | ||
520 | /* Wait until the remote machine stops, then return, | |
521 | storing status in STATUS just as `wait' would. | |
522 | status - */ | |
c5aa993b | 523 | |
c906108c | 524 | static int |
fba45db2 | 525 | es1800_wait (int pid, struct target_waitstatus *status) |
c906108c SS |
526 | { |
527 | unsigned char buf[PBUFSIZ]; | |
528 | int old_timeout = timeout; | |
529 | ||
530 | status->kind = TARGET_WAITKIND_EXITED; | |
531 | status->value.integer = 0; | |
532 | ||
c5aa993b | 533 | timeout = 0; /* Don't time out -- user program is running. */ |
c906108c SS |
534 | if (!setjmp (interrupt)) |
535 | { | |
536 | old_sigint = signal (SIGINT, es1800_request_quit); | |
537 | while (1) | |
c5aa993b JM |
538 | { |
539 | getmessage (buf, sizeof (buf)); | |
540 | if (strncmp (buf, "\r\n* BREAK *", 11) == 0) | |
c906108c SS |
541 | { |
542 | status->kind = TARGET_WAITKIND_STOPPED; | |
543 | status->value.sig = TARGET_SIGNAL_TRAP; | |
544 | send_command ("STP"); /* Restore stack and PC and such */ | |
545 | if (m68020) | |
546 | { | |
547 | send_command ("STP"); | |
548 | } | |
549 | break; | |
550 | } | |
551 | if (strncmp (buf, "STP\r\n ", 6) == 0) | |
552 | { | |
553 | status->kind = TARGET_WAITKIND_STOPPED; | |
554 | status->value.sig = TARGET_SIGNAL_TRAP; | |
555 | break; | |
556 | } | |
557 | if (buf[strlen (buf) - 2] == 'R') | |
558 | { | |
559 | printf ("Unexpected emulator reply: \n%s\n", buf); | |
560 | } | |
561 | else | |
562 | { | |
563 | printf ("Unexpected stop: \n%s\n", buf); | |
564 | status->kind = TARGET_WAITKIND_STOPPED; | |
565 | status->value.sig = TARGET_SIGNAL_QUIT; | |
566 | break; | |
567 | } | |
c5aa993b | 568 | } |
c906108c SS |
569 | } |
570 | else | |
571 | { | |
572 | fflush (stdin); | |
573 | printf ("\nStopping emulator..."); | |
574 | if (!setjmp (interrupt)) | |
575 | { | |
576 | old_sigint = signal (SIGINT, es1800_request_quit); | |
577 | send_command ("STP"); | |
578 | printf (" emulator stopped\n"); | |
579 | status->kind = TARGET_WAITKIND_STOPPED; | |
580 | status->value.sig = TARGET_SIGNAL_INT; | |
c5aa993b | 581 | } |
c906108c SS |
582 | else |
583 | { | |
584 | fflush (stdin); | |
c5aa993b | 585 | es1800_reset ((char *) 1); |
c906108c SS |
586 | } |
587 | } | |
588 | signal (SIGINT, old_sigint); | |
589 | timeout = old_timeout; | |
590 | return (0); | |
591 | } | |
592 | ||
593 | ||
594 | /* Fetch register values from remote machine. | |
595 | regno - the register to be fetched (fetch all registers if -1) */ | |
596 | ||
597 | static void | |
fba45db2 | 598 | es1800_fetch_register (int regno) |
c906108c SS |
599 | { |
600 | char buf[PBUFSIZ]; | |
601 | int k; | |
602 | int r; | |
603 | char *p; | |
c5aa993b JM |
604 | static char regtab[18][4] = |
605 | { | |
606 | "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ", | |
607 | "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP", | |
608 | "SR ", "PC " | |
609 | }; | |
c906108c SS |
610 | |
611 | if ((regno < 15) || (regno == 16) || (regno == 17)) | |
612 | { | |
613 | r = regno * 4; | |
614 | send_with_reply (regtab[regno], buf, sizeof (buf)); | |
615 | p = buf; | |
616 | for (k = 0; k < 4; k++) | |
617 | { | |
c5aa993b | 618 | if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0)) |
c906108c SS |
619 | { |
620 | error ("Emulator reply is too short: %s", buf); | |
621 | } | |
c5aa993b | 622 | registers[r++] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]); |
c906108c SS |
623 | } |
624 | } | |
625 | else | |
626 | { | |
627 | es1800_fetch_registers (); | |
628 | } | |
629 | } | |
630 | ||
631 | /* Read the remote registers into REGISTERS. | |
632 | Always fetches all registers. */ | |
633 | ||
634 | static void | |
fba45db2 | 635 | es1800_fetch_registers (void) |
c906108c SS |
636 | { |
637 | char buf[PBUFSIZ]; | |
638 | char SR_buf[PBUFSIZ]; | |
639 | int i; | |
640 | int k; | |
641 | int r; | |
642 | char *p; | |
643 | ||
644 | send_with_reply ("DR", buf, sizeof (buf)); | |
645 | ||
646 | /* Reply is edited to a string that describes registers byte by byte, | |
647 | each byte encoded as two hex characters. */ | |
648 | ||
649 | p = buf; | |
650 | r = 0; | |
651 | ||
652 | /* parsing row one - D0-D7-registers */ | |
653 | ||
c5aa993b JM |
654 | while (*p++ != '\n') |
655 | {; | |
656 | } | |
c906108c SS |
657 | for (i = 4; i < 70; i += (i == 39 ? 3 : 1)) |
658 | { | |
659 | for (k = 0; k < 4; k++) | |
660 | { | |
c5aa993b | 661 | if (p[i + 0] == 0 || p[i + 1] == 0) |
c906108c SS |
662 | { |
663 | error ("Emulator reply is too short: %s", buf); | |
664 | } | |
c5aa993b | 665 | registers[r++] = (fromhex (p[i + 0]) * 16) + fromhex (p[i + 1]); |
c906108c SS |
666 | i += 2; |
667 | } | |
668 | } | |
669 | p += i; | |
670 | ||
671 | /* parsing row two - A0-A6-registers */ | |
672 | ||
c5aa993b JM |
673 | while (*p++ != '\n') |
674 | {; | |
675 | } | |
c906108c SS |
676 | for (i = 4; i < 61; i += (i == 39 ? 3 : 1)) |
677 | { | |
678 | for (k = 0; k < 4; k++) | |
679 | { | |
c5aa993b | 680 | if (p[i + 0] == 0 || p[i + 1] == 0) |
c906108c SS |
681 | { |
682 | error ("Emulator reply is too short: %s", buf); | |
683 | } | |
c5aa993b | 684 | registers[r++] = (fromhex (p[i + 0])) * 16 + fromhex (p[i + 1]); |
c906108c SS |
685 | i += 2; |
686 | } | |
687 | } | |
688 | p += i; | |
689 | ||
c5aa993b JM |
690 | while (*p++ != '\n') |
691 | {; | |
692 | } | |
c906108c SS |
693 | |
694 | /* fetch SSP-, SR- and PC-registers */ | |
695 | ||
696 | /* first - check STATUS-word and decide which stackpointer to use */ | |
697 | ||
698 | send_with_reply ("SR", SR_buf, sizeof (SR_buf)); | |
699 | p = SR_buf; | |
700 | p += 5; | |
701 | ||
702 | if (m68020) | |
703 | { | |
c5aa993b | 704 | if (*p == '3') /* use masterstackpointer MSP */ |
c906108c SS |
705 | { |
706 | send_with_reply ("MSP", buf, sizeof (buf)); | |
707 | } | |
708 | else if (*p == '2') /* use interruptstackpointer ISP */ | |
709 | { | |
710 | send_with_reply ("ISP", buf, sizeof (buf)); | |
711 | } | |
c5aa993b JM |
712 | else |
713 | /* use userstackpointer USP */ | |
c906108c | 714 | { |
c5aa993b | 715 | send_with_reply ("USP", buf, sizeof (buf)); |
c906108c SS |
716 | } |
717 | p = buf; | |
c5aa993b | 718 | for (k = 0; k < 4; k++) |
c906108c | 719 | { |
c5aa993b | 720 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
721 | { |
722 | error ("Emulator reply is too short: %s", buf); | |
723 | } | |
c5aa993b | 724 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
c906108c SS |
725 | } |
726 | ||
727 | p = SR_buf; | |
728 | for (k = 0; k < 4; k++) | |
729 | { | |
c5aa993b | 730 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
731 | { |
732 | error ("Emulator reply is too short: %s", buf); | |
733 | } | |
734 | registers[r++] = | |
c5aa993b | 735 | fromhex (SR_buf[k * 2 + 1]) * 16 + fromhex (SR_buf[k * 2 + 2]); |
c906108c SS |
736 | } |
737 | send_with_reply ("PC", buf, sizeof (buf)); | |
738 | p = buf; | |
c5aa993b | 739 | for (k = 0; k < 4; k++) |
c906108c | 740 | { |
c5aa993b | 741 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
742 | { |
743 | error ("Emulator reply is too short: %s", buf); | |
744 | } | |
c5aa993b | 745 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
c906108c SS |
746 | } |
747 | } | |
c5aa993b JM |
748 | else |
749 | /* 68000-mode */ | |
750 | { | |
751 | if (*p == '2') /* use supervisorstackpointer SSP */ | |
c906108c | 752 | { |
c5aa993b | 753 | send_with_reply ("SSP", buf, sizeof (buf)); |
c906108c | 754 | } |
c5aa993b JM |
755 | else |
756 | /* use userstackpointer USP */ | |
c906108c | 757 | { |
c5aa993b | 758 | send_with_reply ("USP", buf, sizeof (buf)); |
c906108c SS |
759 | } |
760 | ||
761 | /* fetch STACKPOINTER */ | |
762 | ||
763 | p = buf; | |
764 | for (k = 0; k < 4; k++) | |
765 | { | |
c5aa993b | 766 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
767 | { |
768 | error ("Emulator reply is too short: %s", buf); | |
769 | } | |
c5aa993b | 770 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
c906108c SS |
771 | } |
772 | ||
773 | /* fetch STATUS */ | |
774 | ||
775 | p = SR_buf; | |
776 | for (k = 0; k < 4; k++) | |
777 | { | |
c5aa993b | 778 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
779 | { |
780 | error ("Emulator reply is too short: %s", buf); | |
781 | } | |
782 | registers[r++] = | |
c5aa993b | 783 | fromhex (SR_buf[k * 2 + 1]) * 16 + fromhex (SR_buf[k * 2 + 2]); |
c906108c SS |
784 | } |
785 | ||
786 | /* fetch PC */ | |
787 | ||
c5aa993b | 788 | send_with_reply ("PC", buf, sizeof (buf)); |
c906108c SS |
789 | p = buf; |
790 | for (k = 0; k < 4; k++) | |
791 | { | |
c5aa993b | 792 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
793 | { |
794 | error ("Emulator reply is too short: %s", buf); | |
795 | } | |
c5aa993b JM |
796 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
797 | } | |
c906108c SS |
798 | } |
799 | } | |
800 | ||
801 | /* Store register value, located in REGISTER, on the target processor. | |
802 | regno - the register-number of the register to store | |
c5aa993b | 803 | (-1 means store them all) |
c906108c SS |
804 | FIXME: Return errno value. */ |
805 | ||
806 | static void | |
fba45db2 | 807 | es1800_store_register (int regno) |
c906108c SS |
808 | { |
809 | ||
810 | static char regtab[18][4] = | |
c5aa993b JM |
811 | { |
812 | "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ", | |
813 | "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP", | |
814 | "SR ", "PC " | |
815 | }; | |
c906108c SS |
816 | |
817 | char buf[PBUFSIZ]; | |
818 | char SR_buf[PBUFSIZ]; | |
819 | char stack_pointer[4]; | |
820 | char *p; | |
821 | int i; | |
822 | int j; | |
823 | int k; | |
824 | unsigned char *r; | |
825 | ||
826 | r = (unsigned char *) registers; | |
827 | ||
c5aa993b | 828 | if (regno == -1) /* write all registers */ |
c906108c SS |
829 | { |
830 | j = 0; | |
831 | k = 18; | |
832 | } | |
c5aa993b JM |
833 | else |
834 | /* write one register */ | |
c906108c SS |
835 | { |
836 | j = regno; | |
c5aa993b JM |
837 | k = regno + 1; |
838 | r += regno * 4; | |
839 | } | |
c906108c SS |
840 | |
841 | if ((regno == -1) || (regno == 15)) | |
842 | { | |
843 | /* fetch current status */ | |
844 | send_with_reply ("SR", SR_buf, sizeof (SR_buf)); | |
845 | p = SR_buf; | |
846 | p += 5; | |
847 | if (m68020) | |
848 | { | |
c5aa993b | 849 | if (*p == '3') /* use masterstackpointer MSP */ |
c906108c | 850 | { |
c5aa993b | 851 | strcpy (stack_pointer, "MSP"); |
c906108c SS |
852 | } |
853 | else | |
854 | { | |
c5aa993b | 855 | if (*p == '2') /* use interruptstackpointer ISP */ |
c906108c | 856 | { |
c5aa993b | 857 | strcpy (stack_pointer, "ISP"); |
c906108c SS |
858 | } |
859 | else | |
860 | { | |
c5aa993b | 861 | strcpy (stack_pointer, "USP"); /* use userstackpointer USP */ |
c906108c SS |
862 | } |
863 | } | |
864 | } | |
c5aa993b JM |
865 | else |
866 | /* 68000-mode */ | |
c906108c | 867 | { |
c5aa993b | 868 | if (*p == '2') /* use supervisorstackpointer SSP */ |
c906108c | 869 | { |
c5aa993b | 870 | strcpy (stack_pointer, "SSP"); |
c906108c SS |
871 | } |
872 | else | |
873 | { | |
c5aa993b | 874 | strcpy (stack_pointer, "USP"); /* use userstackpointer USP */ |
c906108c SS |
875 | } |
876 | } | |
c5aa993b | 877 | strcpy (regtab[15], stack_pointer); |
c906108c SS |
878 | } |
879 | ||
c5aa993b | 880 | for (i = j; i < k; i++) |
c906108c SS |
881 | { |
882 | buf[0] = regtab[i][0]; | |
883 | buf[1] = regtab[i][1]; | |
884 | buf[2] = regtab[i][2]; | |
885 | buf[3] = '='; | |
886 | buf[4] = '$'; | |
887 | buf[5] = tohex ((*r >> 4) & 0x0f); | |
888 | buf[6] = tohex (*r++ & 0x0f); | |
889 | buf[7] = tohex ((*r >> 4) & 0x0f); | |
890 | buf[8] = tohex (*r++ & 0x0f); | |
891 | buf[9] = tohex ((*r >> 4) & 0x0f); | |
892 | buf[10] = tohex (*r++ & 0x0f); | |
893 | buf[11] = tohex ((*r >> 4) & 0x0f); | |
894 | buf[12] = tohex (*r++ & 0x0f); | |
895 | buf[13] = 0; | |
896 | ||
c5aa993b | 897 | send_with_reply (buf, buf, sizeof (buf)); /* FIXME, reply not used? */ |
c906108c SS |
898 | } |
899 | } | |
900 | ||
901 | ||
902 | /* Prepare to store registers. */ | |
903 | ||
c5aa993b | 904 | static void |
fba45db2 | 905 | es1800_prepare_to_store (void) |
c906108c SS |
906 | { |
907 | /* Do nothing, since we can store individual regs */ | |
908 | } | |
909 | ||
910 | /* Convert hex digit A to a number. */ | |
911 | ||
912 | static int | |
fba45db2 | 913 | fromhex (int a) |
c906108c SS |
914 | { |
915 | if (a >= '0' && a <= '9') | |
916 | { | |
917 | return a - '0'; | |
918 | } | |
919 | else if (a >= 'a' && a <= 'f') | |
920 | { | |
921 | return a - 'a' + 10; | |
922 | } | |
923 | else if (a >= 'A' && a <= 'F') | |
924 | { | |
925 | return a - 'A' + 10; | |
926 | } | |
927 | else | |
928 | { | |
929 | error ("Reply contains invalid hex digit"); | |
930 | } | |
931 | return (-1); | |
932 | } | |
933 | ||
934 | ||
935 | /* Convert number NIB to a hex digit. */ | |
936 | ||
937 | static int | |
fba45db2 | 938 | tohex (int nib) |
c906108c SS |
939 | { |
940 | if (nib < 10) | |
941 | { | |
942 | return ('0' + nib); | |
943 | } | |
944 | else | |
945 | { | |
946 | return ('A' + nib - 10); | |
947 | } | |
948 | } | |
949 | ||
950 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
951 | to or from debugger address MYADDR. Write to inferior if WRITE is | |
952 | nonzero. Returns length of data written or read; 0 for error. | |
c5aa993b | 953 | |
c906108c SS |
954 | memaddr - the target's address |
955 | myaddr - gdb's address | |
956 | len - number of bytes | |
c5aa993b | 957 | write - write if != 0 otherwise read */ |
c906108c SS |
958 | |
959 | static int | |
960 | es1800_xfer_inferior_memory (memaddr, myaddr, len, write, tops) | |
961 | CORE_ADDR memaddr; | |
962 | char *myaddr; | |
963 | int len; | |
964 | int write; | |
965 | struct target_ops *tops; /* Unused */ | |
966 | { | |
967 | int origlen = len; | |
968 | int xfersize; | |
969 | ||
970 | while (len > 0) | |
971 | { | |
972 | xfersize = len > MAXBUFBYTES ? MAXBUFBYTES : len; | |
973 | if (write) | |
974 | { | |
975 | es1800_write_bytes (memaddr, myaddr, xfersize); | |
976 | } | |
977 | else | |
978 | { | |
979 | es1800_read_bytes (memaddr, myaddr, xfersize); | |
980 | } | |
981 | memaddr += xfersize; | |
982 | myaddr += xfersize; | |
983 | len -= xfersize; | |
984 | } | |
c5aa993b | 985 | return (origlen); /* no error possible */ |
c906108c SS |
986 | } |
987 | ||
988 | ||
989 | /* Write memory data directly to the emulator. | |
990 | This does not inform the data cache; the data cache uses this. | |
991 | MEMADDR is the address in the remote memory space. | |
992 | MYADDR is the address of the buffer in our space. | |
993 | LEN is the number of bytes. | |
c5aa993b | 994 | |
c906108c SS |
995 | memaddr - the target's address |
996 | myaddr - gdb's address | |
997 | len - number of bytes */ | |
998 | ||
999 | static void | |
fba45db2 | 1000 | es1800_write_bytes (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c SS |
1001 | { |
1002 | char buf[PBUFSIZ]; | |
1003 | int i; | |
1004 | char *p; | |
1005 | ||
1006 | p = myaddr; | |
1007 | for (i = 0; i < len; i++) | |
1008 | { | |
c5aa993b JM |
1009 | sprintf (buf, "@.B$%x=$%x", memaddr + i, (*p++) & 0xff); |
1010 | send_with_reply (buf, buf, sizeof (buf)); /* FIXME send_command? */ | |
c906108c SS |
1011 | } |
1012 | } | |
1013 | ||
1014 | ||
1015 | /* Read memory data directly from the emulator. | |
1016 | This does not use the data cache; the data cache uses this. | |
c5aa993b | 1017 | |
c906108c SS |
1018 | memaddr - the target's address |
1019 | myaddr - gdb's address | |
1020 | len - number of bytes */ | |
1021 | ||
1022 | static void | |
fba45db2 | 1023 | es1800_read_bytes (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1024 | { |
c5aa993b JM |
1025 | static int DB_tab[16] = |
1026 | {8, 11, 14, 17, 20, 23, 26, 29, 34, 37, 40, 43, 46, 49, 52, 55}; | |
c906108c SS |
1027 | char buf[PBUFSIZ]; |
1028 | int i; | |
1029 | int low_addr; | |
1030 | char *p; | |
1031 | char *b; | |
1032 | ||
1033 | if (len > PBUFSIZ / 2 - 1) | |
1034 | { | |
1035 | abort (); | |
1036 | } | |
1037 | ||
c5aa993b | 1038 | if (len == 1) /* The emulator does not like expressions like: */ |
c906108c | 1039 | { |
c5aa993b | 1040 | len = 2; /* DB.B $20018 TO $20018 */ |
c906108c SS |
1041 | } |
1042 | ||
1043 | /* Reply describes registers byte by byte, each byte encoded as two hex | |
1044 | characters. */ | |
1045 | ||
c5aa993b | 1046 | sprintf (buf, "DB.B $%x TO $%x", memaddr, memaddr + len - 1); |
c906108c SS |
1047 | send_with_reply (buf, buf, sizeof (buf)); |
1048 | b = buf; | |
c5aa993b | 1049 | low_addr = memaddr & 0x0f; |
c906108c SS |
1050 | for (i = low_addr; i < low_addr + len; i++) |
1051 | { | |
1052 | if ((!(i % 16)) && i) | |
c5aa993b JM |
1053 | { /* if (i = 16,32,48) */ |
1054 | while (*p++ != '\n') | |
1055 | {; | |
1056 | } | |
c906108c SS |
1057 | b = p; |
1058 | } | |
c5aa993b | 1059 | p = b + DB_tab[i % 16] + (m68020 ? 2 : 0); |
c906108c SS |
1060 | if (p[0] == 32 || p[1] == 32) |
1061 | { | |
1062 | error ("Emulator reply is too short: %s", buf); | |
1063 | } | |
c5aa993b | 1064 | myaddr[i - low_addr] = fromhex (p[0]) * 16 + fromhex (p[1]); |
c906108c SS |
1065 | } |
1066 | } | |
1067 | ||
1068 | /* Information about the current target */ | |
1069 | ||
1070 | static void | |
1071 | es1800_files_info (tops) | |
1072 | struct target_ops *tops; /* Unused */ | |
1073 | { | |
1074 | printf ("ES1800 Attached to %s at %d baud in %s mode\n", savename, 19200, | |
1075 | MODE); | |
1076 | } | |
1077 | ||
1078 | ||
1079 | /* We read the contents of the target location and stash it, | |
1080 | then overwrite it with a breakpoint instruction. | |
c5aa993b | 1081 | |
c906108c SS |
1082 | addr - is the target location in the target machine. |
1083 | contents_cache - is a pointer to memory allocated for saving the target contents. | |
c5aa993b JM |
1084 | It is guaranteed by the caller to be long enough to save sizeof |
1085 | BREAKPOINT bytes. | |
1086 | ||
c906108c SS |
1087 | FIXME: This size is target_arch dependent and should be available in |
1088 | the target_arch transfer vector, if we ever have one... */ | |
1089 | ||
1090 | static int | |
fba45db2 | 1091 | es1800_insert_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c | 1092 | { |
c5aa993b | 1093 | int val; |
c906108c SS |
1094 | |
1095 | val = target_read_memory (addr, contents_cache, sizeof (es1800_break_insn)); | |
1096 | ||
1097 | if (val == 0) | |
1098 | { | |
1099 | val = target_write_memory (addr, es1800_break_insn, | |
1100 | sizeof (es1800_break_insn)); | |
1101 | } | |
1102 | ||
1103 | return (val); | |
1104 | } | |
1105 | ||
1106 | ||
1107 | /* Write back the stashed instruction | |
c5aa993b | 1108 | |
c906108c SS |
1109 | addr - is the target location in the target machine. |
1110 | contents_cache - is a pointer to memory allocated for saving the target contents. | |
c5aa993b JM |
1111 | It is guaranteed by the caller to be long enough to save sizeof |
1112 | BREAKPOINT bytes. */ | |
1113 | ||
c906108c | 1114 | static int |
fba45db2 | 1115 | es1800_remove_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c SS |
1116 | { |
1117 | ||
1118 | return (target_write_memory (addr, contents_cache, | |
1119 | sizeof (es1800_break_insn))); | |
1120 | } | |
1121 | ||
1122 | /* create_break_insn () | |
1123 | Primitive datastructures containing the es1800 breakpoint instruction */ | |
1124 | ||
1125 | static void | |
fba45db2 | 1126 | es1800_create_break_insn (char *ins, int vec) |
c906108c SS |
1127 | { |
1128 | if (vec == 15) | |
1129 | { | |
1130 | ins[0] = 0x4e; | |
1131 | ins[1] = 0x4f; | |
1132 | } | |
1133 | } | |
1134 | ||
1135 | ||
1136 | /* verify_break () | |
1137 | Seach for breakpoint routine in emulator memory. | |
1138 | returns non-zero on failure | |
1139 | vec - trap vector used for breakpoints */ | |
1140 | ||
1141 | static int | |
fba45db2 | 1142 | verify_break (int vec) |
c906108c SS |
1143 | { |
1144 | CORE_ADDR memaddress; | |
1145 | char buf[8]; | |
c5aa993b | 1146 | char *instr = "NqNqNqNs"; /* breakpoint routine */ |
c906108c SS |
1147 | int status; |
1148 | ||
1149 | get_break_addr (vec, &memaddress); | |
1150 | ||
1151 | if (memaddress) | |
1152 | { | |
c5aa993b | 1153 | status = target_read_memory (memaddress, buf, 8); |
c906108c SS |
1154 | if (status != 0) |
1155 | { | |
1156 | memory_error (status, memaddress); | |
1157 | } | |
1158 | return (STRCMP (instr, buf)); | |
1159 | } | |
c5aa993b | 1160 | return (-1); |
c906108c SS |
1161 | } |
1162 | ||
1163 | ||
1164 | /* get_break_addr () | |
1165 | find address of breakpint routine | |
1166 | vec - trap vector used for breakpoints | |
c5aa993b | 1167 | addrp - store the address here */ |
c906108c SS |
1168 | |
1169 | static void | |
fba45db2 | 1170 | get_break_addr (int vec, CORE_ADDR *addrp) |
c906108c SS |
1171 | { |
1172 | CORE_ADDR memaddress = 0; | |
1173 | int status; | |
1174 | int k; | |
1175 | char buf[PBUFSIZ]; | |
1176 | char base_addr[4]; | |
1177 | char *p; | |
1178 | ||
1179 | if (m68020) | |
1180 | { | |
1181 | send_with_reply ("VBR ", buf, sizeof (buf)); | |
1182 | p = buf; | |
1183 | for (k = 0; k < 4; k++) | |
1184 | { | |
c5aa993b | 1185 | if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0)) |
c906108c SS |
1186 | { |
1187 | error ("Emulator reply is too short: %s", buf); | |
1188 | } | |
c5aa993b | 1189 | base_addr[k] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]); |
c906108c SS |
1190 | } |
1191 | /* base addr of exception vector table */ | |
1192 | memaddress = *((CORE_ADDR *) base_addr); | |
1193 | } | |
1194 | ||
c5aa993b JM |
1195 | memaddress += (vec + 32) * 4; /* address of trap vector */ |
1196 | status = target_read_memory (memaddress, (char *) addrp, 4); | |
1197 | if (status != 0) | |
1198 | { | |
1199 | memory_error (status, memaddress); | |
1200 | } | |
c906108c SS |
1201 | } |
1202 | ||
1203 | ||
1204 | /* Kill an inferior process */ | |
1205 | ||
1206 | static void | |
fba45db2 | 1207 | es1800_kill (void) |
c906108c SS |
1208 | { |
1209 | if (inferior_pid != 0) | |
1210 | { | |
1211 | inferior_pid = 0; | |
1212 | es1800_mourn_inferior (); | |
1213 | } | |
1214 | } | |
1215 | ||
1216 | ||
1217 | /* Load a file to the ES1800 emulator. | |
1218 | Converts the file from a.out format into Extended Tekhex format | |
1219 | before the file is loaded. | |
1220 | Also loads the trap routine, and sets the ES1800 breakpoint on it | |
1221 | filename - the a.out to be loaded | |
1222 | from_tty - says whether to be verbose or not | |
c5aa993b JM |
1223 | FIXME Uses emulator overlay memory for trap routine */ |
1224 | ||
c906108c | 1225 | static void |
fba45db2 | 1226 | es1800_load (char *filename, int from_tty) |
c906108c SS |
1227 | { |
1228 | ||
1229 | FILE *instream; | |
1230 | char loadname[15]; | |
1231 | char buf[160]; | |
1232 | struct cleanup *old_chain; | |
1233 | int es1800_load_format = 5; | |
1234 | ||
c5aa993b | 1235 | if (es1800_desc == NULL) |
c906108c SS |
1236 | { |
1237 | printf ("No emulator attached, type emulator-command first\n"); | |
1238 | return; | |
1239 | } | |
1240 | ||
1241 | filename = tilde_expand (filename); | |
1242 | make_cleanup (free, filename); | |
1243 | ||
1244 | switch (es1800_load_format) | |
1245 | { | |
c5aa993b JM |
1246 | case 2: /* Extended Tekhex */ |
1247 | if (from_tty) | |
1248 | { | |
1249 | printf ("Converting \"%s\" to Extended Tekhex Format\n", filename); | |
1250 | } | |
1251 | sprintf (buf, "tekhex %s", filename); | |
1252 | system (buf); | |
1253 | sprintf (loadname, "out.hex"); | |
1254 | break; | |
1255 | ||
1256 | case 5: /* Motorola S-rec */ | |
1257 | if (from_tty) | |
1258 | { | |
1259 | printf ("Converting \"%s\" to Motorola S-record format\n", | |
1260 | filename); | |
1261 | } | |
1262 | /* in the future the source code in copy (part of binutils-1.93) will | |
1263 | be included in this file */ | |
1264 | sprintf (buf, | |
1265 | "copy -s \"a.out-sunos-big\" -d \"srec\" %s /tmp/out.hex", | |
1266 | filename); | |
1267 | system (buf); | |
1268 | sprintf (loadname, "/tmp/out.hex"); | |
1269 | break; | |
1270 | ||
1271 | default: | |
1272 | error ("Downloading format not defined\n"); | |
1273 | } | |
1274 | ||
c906108c SS |
1275 | breakpoint_init_inferior (); |
1276 | inferior_pid = 0; | |
1277 | if (from_tty) | |
1278 | { | |
c5aa993b | 1279 | printf ("Downloading \"%s\" to the ES 1800\n", filename); |
c906108c SS |
1280 | } |
1281 | if ((instream = fopen (loadname, "r")) == NULL) | |
1282 | { | |
1283 | perror_with_name ("fopen:"); | |
1284 | } | |
1285 | ||
1286 | old_chain = make_cleanup (fclose, instream); | |
1287 | immediate_quit++; | |
1288 | ||
1289 | es1800_reset (0); | |
1290 | ||
1291 | download (instream, from_tty, es1800_load_format); | |
1292 | ||
1293 | /* if breakpoint routine is not present anymore we have to check | |
1294 | whether to download a new breakpoint routine or not */ | |
1295 | ||
1296 | if ((verify_break (es1800_break_vec) != 0) | |
1297 | && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? ")) | |
1298 | { | |
1299 | char buf[128]; | |
1300 | printf ("Using break vector 0x%x\n", es1800_break_vec); | |
1301 | sprintf (buf, "0x%x ", es1800_break_vec); | |
1302 | printf ("Give the start address of the breakpoint routine: "); | |
1303 | fgets (buf + strlen (buf), sizeof (buf) - strlen (buf), stdin); | |
1304 | es1800_init_break (buf, 0); | |
1305 | } | |
1306 | ||
1307 | do_cleanups (old_chain); | |
1308 | expect_prompt (); | |
c5aa993b | 1309 | readchar (); /* FIXME I am getting a ^G = 7 after the prompt */ |
c906108c SS |
1310 | printf ("\n"); |
1311 | ||
1312 | if (fclose (instream) == EOF) | |
1313 | { | |
1314 | ; | |
1315 | } | |
1316 | ||
1317 | if (es1800_load_format != 2) | |
1318 | { | |
1319 | sprintf (buf, "/usr/bin/rm %s", loadname); | |
1320 | system (buf); | |
1321 | } | |
1322 | ||
c5aa993b | 1323 | symbol_file_command (filename, from_tty); /* reading symbol table */ |
c906108c SS |
1324 | immediate_quit--; |
1325 | } | |
1326 | ||
1327 | #if 0 | |
1328 | ||
1329 | #define NUMCPYBYTES 20 | |
1330 | ||
1331 | static void | |
fba45db2 | 1332 | bfd_copy (bfd *from_bfd, bfd *to_bfd) |
c906108c SS |
1333 | { |
1334 | asection *p, *new; | |
1335 | int i; | |
1336 | char buf[NUMCPYBYTES]; | |
1337 | ||
1338 | for (p = from_bfd->sections; p != NULL; p = p->next) | |
1339 | { | |
1340 | printf (" Copying section %s. Size = %x.\n", p->name, p->_cooked_size); | |
1341 | printf (" vma = %x, offset = %x, output_sec = %x\n", | |
1342 | p->vma, p->output_offset, p->output_section); | |
1343 | new = bfd_make_section (to_bfd, p->name); | |
1344 | if (p->_cooked_size && | |
1345 | !bfd_set_section_size (to_bfd, new, p->_cooked_size)) | |
1346 | { | |
1347 | error ("Wrong BFD size!\n"); | |
1348 | } | |
1349 | if (!bfd_set_section_flags (to_bfd, new, p->flags)) | |
1350 | { | |
1351 | error ("bfd_set_section_flags"); | |
1352 | } | |
1353 | new->vma = p->vma; | |
c5aa993b JM |
1354 | |
1355 | for (i = 0; (i + NUMCPYBYTES) < p->_cooked_size; i += NUMCPYBYTES) | |
c906108c SS |
1356 | { |
1357 | if (!bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i, | |
c5aa993b | 1358 | (bfd_size_type) NUMCPYBYTES)) |
c906108c SS |
1359 | { |
1360 | error ("bfd_get_section_contents\n"); | |
1361 | } | |
c5aa993b JM |
1362 | if (!bfd_set_section_contents (to_bfd, new, (PTR) buf, (file_ptr) i, |
1363 | (bfd_size_type) NUMCPYBYTES)) | |
1364 | { | |
1365 | error ("bfd_set_section_contents\n"); | |
1366 | } | |
1367 | } | |
c906108c SS |
1368 | bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i, |
1369 | (bfd_size_type) (p->_cooked_size - i)); | |
c5aa993b | 1370 | bfd_set_section_contents (to_bfd, new, (PTR) buf, (file_ptr) i, |
c906108c SS |
1371 | (bfd_size_type) (p->_cooked_size - i)); |
1372 | } | |
1373 | } | |
1374 | ||
1375 | #endif | |
1376 | ||
1377 | /* Start an process on the es1800 and set inferior_pid to the new | |
1378 | process' pid. | |
1379 | execfile - the file to run | |
1380 | args - arguments passed to the program | |
c5aa993b | 1381 | env - the environment vector to pass */ |
c906108c SS |
1382 | |
1383 | static void | |
fba45db2 | 1384 | es1800_create_inferior (char *execfile, char *args, char **env) |
c906108c SS |
1385 | { |
1386 | int entry_pt; | |
1387 | int pid; | |
1388 | #if 0 | |
1389 | struct expression *expr; | |
1390 | register struct cleanup *old_chain = 0; | |
1391 | register value val; | |
1392 | #endif | |
1393 | ||
1394 | if (args && *args) | |
1395 | { | |
1396 | error ("Can't pass arguments to remote ES1800 process"); | |
1397 | } | |
1398 | ||
1399 | #if 0 | |
1400 | if (query ("Use 'start' as entry point? ")) | |
1401 | { | |
1402 | expr = parse_c_expression ("start"); | |
1403 | old_chain = make_cleanup (free_current_contents, &expr); | |
1404 | val = evaluate_expression (expr); | |
1405 | entry_pt = (val->location).address; | |
1406 | } | |
1407 | else | |
1408 | { | |
1409 | printf ("Enter the program's entry point (in hexadecimal): "); | |
1410 | scanf ("%x", &entry_pt); | |
1411 | } | |
1412 | #endif | |
1413 | ||
1414 | if (execfile == 0 || exec_bfd == 0) | |
1415 | { | |
1416 | error ("No executable file specified"); | |
1417 | } | |
1418 | ||
1419 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
1420 | ||
1421 | pid = 42; | |
1422 | ||
1423 | /* Now that we have a child process, make it our target. */ | |
1424 | ||
1425 | push_target (&es1800_child_ops); | |
1426 | ||
1427 | /* The "process" (board) is already stopped awaiting our commands, and | |
1428 | the program is already downloaded. We just set its PC and go. */ | |
1429 | ||
1430 | inferior_pid = pid; /* Needed for wait_for_inferior below */ | |
1431 | ||
1432 | clear_proceed_status (); | |
1433 | ||
1434 | /* Tell wait_for_inferior that we've started a new process. */ | |
1435 | ||
1436 | init_wait_for_inferior (); | |
1437 | ||
1438 | /* Set up the "saved terminal modes" of the inferior | |
1439 | based on what modes we are starting it with. */ | |
1440 | ||
1441 | target_terminal_init (); | |
1442 | ||
1443 | /* Install inferior's terminal modes. */ | |
1444 | ||
1445 | target_terminal_inferior (); | |
1446 | ||
1447 | /* remote_start (args); */ | |
1448 | /* trap_expected = 0; */ | |
1449 | /* insert_step_breakpoint (); FIXME, do we need this? */ | |
1450 | ||
1451 | /* Let 'er rip... */ | |
1452 | proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0); | |
1453 | ||
1454 | } | |
1455 | ||
1456 | ||
1457 | /* The process has died, clean up. */ | |
1458 | ||
1459 | static void | |
fba45db2 | 1460 | es1800_mourn_inferior (void) |
c906108c SS |
1461 | { |
1462 | remove_breakpoints (); | |
1463 | unpush_target (&es1800_child_ops); | |
1464 | generic_mourn_inferior (); /* Do all the proper things now */ | |
1465 | } | |
1466 | ||
1467 | /* ES1800-protocol specific routines */ | |
1468 | ||
1469 | /* Keep discarding input from the remote system, until STRING is found. | |
1470 | Let the user break out immediately. | |
1471 | string - the string to expect | |
1472 | nowait - break out if string not the emulator's first respond otherwise | |
c5aa993b JM |
1473 | read until string is found (== 0) */ |
1474 | ||
c906108c | 1475 | static void |
fba45db2 | 1476 | expect (char *string, int nowait) |
c906108c SS |
1477 | { |
1478 | char c; | |
1479 | char *p = string; | |
1480 | ||
1481 | immediate_quit++; | |
1482 | while (1) | |
1483 | { | |
1484 | c = readchar (); | |
1485 | if (isalpha (c)) | |
1486 | { | |
1487 | c = toupper (c); | |
1488 | } | |
1489 | if (c == toupper (*p)) | |
1490 | { | |
1491 | p++; | |
1492 | if (*p == '\0') | |
1493 | { | |
1494 | immediate_quit--; | |
1495 | return; | |
1496 | } | |
1497 | } | |
1498 | else if (!nowait) | |
1499 | { | |
1500 | p = string; | |
1501 | } | |
1502 | else | |
1503 | { | |
c5aa993b | 1504 | printf ("\'%s\' expected\n", string); |
c906108c | 1505 | printf ("char %d is %d", p - string, c); |
c5aa993b | 1506 | error ("\n"); |
c906108c SS |
1507 | } |
1508 | } | |
1509 | } | |
1510 | ||
1511 | /* Keep discarding input until we see the prompt. */ | |
1512 | ||
1513 | static void | |
fba45db2 | 1514 | expect_prompt (void) |
c906108c SS |
1515 | { |
1516 | expect (">", 0); | |
1517 | } | |
1518 | ||
1519 | ||
1520 | /* Read one character */ | |
1521 | ||
1522 | #ifdef DEBUG_STDIN | |
1523 | ||
1524 | /* read from stdin */ | |
1525 | ||
1526 | static int | |
fba45db2 | 1527 | readchar (void) |
c906108c SS |
1528 | { |
1529 | char buf[1]; | |
1530 | ||
1531 | buf[0] = '\0'; | |
1532 | printf ("readchar, give one character\n"); | |
1533 | read (0, buf, 1); | |
1534 | ||
1535 | #if defined (LOG_FILE) | |
1536 | putc (buf[0] & 0x7f, log_file); | |
1537 | #endif | |
1538 | ||
1539 | return (buf[0] & 0x7f); | |
1540 | } | |
1541 | ||
c5aa993b | 1542 | #else /* !DEBUG_STDIN */ |
c906108c SS |
1543 | |
1544 | /* Read a character from the remote system, doing all the fancy | |
1545 | timeout stuff. */ | |
1546 | ||
1547 | static int | |
fba45db2 | 1548 | readchar (void) |
c906108c SS |
1549 | { |
1550 | int ch; | |
1551 | ||
1552 | ch = SERIAL_READCHAR (es1800_desc, timeout); | |
1553 | ||
1554 | /* FIXME: doing an error() here will probably cause trouble, at least if from | |
1555 | es1800_wait. */ | |
1556 | if (ch == SERIAL_TIMEOUT) | |
1557 | error ("Timeout reading from remote system."); | |
1558 | else if (ch == SERIAL_ERROR) | |
1559 | perror_with_name ("remote read"); | |
1560 | ||
1561 | #if defined (LOG_FILE) | |
1562 | putc (ch & 0x7f, log_file); | |
1563 | fflush (log_file); | |
1564 | #endif | |
1565 | ||
1566 | return (ch); | |
1567 | } | |
1568 | ||
c5aa993b | 1569 | #endif /* DEBUG_STDIN */ |
c906108c SS |
1570 | |
1571 | ||
1572 | /* Send a command to the emulator and save the reply. | |
1573 | Report an error if we get an error reply. | |
1574 | string - the es1800 command | |
1575 | buf - containing the emulator reply on return | |
1576 | len - size of buf */ | |
1577 | ||
1578 | static void | |
fba45db2 | 1579 | send_with_reply (char *string, char *buf, int len) |
c906108c SS |
1580 | { |
1581 | send (string); | |
1582 | SERIAL_WRITE (es1800_desc, "\r", 1); | |
1583 | ||
1584 | #ifndef DEBUG_STDIN | |
1585 | expect (string, 1); | |
1586 | expect ("\r\n", 0); | |
1587 | #endif | |
1588 | ||
1589 | getmessage (buf, len); | |
1590 | } | |
1591 | ||
1592 | ||
1593 | /* Send the command in STR to the emulator adding \r. check | |
1594 | the echo for consistency. | |
1595 | string - the es1800 command */ | |
c5aa993b | 1596 | |
c906108c | 1597 | static void |
fba45db2 | 1598 | send_command (char *string) |
c906108c SS |
1599 | { |
1600 | send (string); | |
1601 | SERIAL_WRITE (es1800_desc, "\r", 1); | |
1602 | ||
1603 | #ifndef DEBUG_STDIN | |
1604 | expect (string, 0); | |
1605 | expect_prompt (); | |
1606 | #endif | |
1607 | ||
1608 | } | |
1609 | ||
1610 | /* Send a string | |
1611 | string - the es1800 command */ | |
1612 | ||
1613 | static void | |
fba45db2 | 1614 | send (char *string) |
c906108c | 1615 | { |
c5aa993b | 1616 | if (kiodebug) |
c906108c SS |
1617 | { |
1618 | fprintf (stderr, "Sending: %s\n", string); | |
1619 | } | |
1620 | SERIAL_WRITE (es1800_desc, string, strlen (string)); | |
1621 | } | |
1622 | ||
1623 | ||
1624 | /* Read a message from the emulator and store it in BUF. | |
1625 | buf - containing the emulator reply on return | |
1626 | len - size of buf */ | |
c5aa993b | 1627 | |
c906108c | 1628 | static void |
fba45db2 | 1629 | getmessage (char *buf, int len) |
c906108c SS |
1630 | { |
1631 | char *bp; | |
1632 | int c; | |
1633 | int prompt_found = 0; | |
1634 | extern kiodebug; | |
1635 | ||
1636 | #if defined (LOG_FILE) | |
1637 | /* This is a convenient place to do this. The idea is to do it often | |
1638 | enough that we never lose much data if we terminate abnormally. */ | |
1639 | fflush (log_file); | |
1640 | #endif | |
1641 | ||
1642 | bp = buf; | |
1643 | c = readchar (); | |
1644 | do | |
1645 | { | |
c5aa993b | 1646 | if (c) |
c906108c | 1647 | { |
c5aa993b | 1648 | if (len-- < 2) /* char and terminaling NULL */ |
c906108c SS |
1649 | { |
1650 | error ("input buffer overrun\n"); | |
1651 | } | |
1652 | *bp++ = c; | |
1653 | } | |
1654 | c = readchar (); | |
1655 | if ((c == '>') && (*(bp - 1) == ' ')) | |
1656 | { | |
1657 | prompt_found = 1; | |
1658 | } | |
1659 | } | |
1660 | while (!prompt_found); | |
1661 | *bp = 0; | |
c5aa993b | 1662 | |
c906108c SS |
1663 | if (kiodebug) |
1664 | { | |
c5aa993b | 1665 | fprintf (stderr, "message received :%s\n", buf); |
c906108c SS |
1666 | } |
1667 | } | |
1668 | ||
1669 | static void | |
fba45db2 | 1670 | download (FILE *instream, int from_tty, int format) |
c906108c SS |
1671 | { |
1672 | char c; | |
1673 | char buf[160]; | |
1674 | int i = 0; | |
1675 | ||
c5aa993b JM |
1676 | send_command ("SET #2,$1A"); /* reset char = ^Z */ |
1677 | send_command ("SET #3,$11,$13"); /* XON XOFF */ | |
c906108c SS |
1678 | if (format == 2) |
1679 | { | |
1680 | send_command ("SET #26,#2"); | |
1681 | } | |
1682 | else | |
1683 | { | |
c5aa993b | 1684 | send_command ("SET #26,#5"); /* Format=Extended Tekhex */ |
c906108c SS |
1685 | } |
1686 | send_command ("DFB = $10"); | |
1687 | send_command ("PUR"); | |
1688 | send_command ("CES"); | |
1689 | send ("DNL\r"); | |
1690 | expect ("DNL", 1); | |
1691 | if (from_tty) | |
1692 | { | |
1693 | printf (" 0 records loaded...\r"); | |
1694 | } | |
1695 | while (fgets (buf, 160, instream)) | |
c5aa993b JM |
1696 | { |
1697 | send (buf); | |
1698 | if (from_tty) | |
1699 | { | |
1700 | printf ("%5d\b\b\b\b\b", ++i); | |
1701 | fflush (stdout); | |
1702 | } | |
1703 | if ((c = readchar ()) != 006) | |
1704 | { | |
1705 | error ("expected ACK"); | |
1706 | } | |
1707 | } | |
c906108c SS |
1708 | if (from_tty) |
1709 | { | |
1710 | printf ("- All"); | |
1711 | } | |
1712 | } | |
1713 | ||
1714 | /* Additional commands */ | |
1715 | ||
1716 | #if defined (TIOCGETP) && defined (FNDELAY) && defined (EWOULDBLOCK) | |
1717 | #define PROVIDE_TRANSPARENT | |
1718 | #endif | |
1719 | ||
1720 | #ifdef PROVIDE_TRANSPARENT | |
1721 | /* Talk directly to the emulator | |
1722 | FIXME, uses busy wait, and is SUNOS (or at least BSD) specific */ | |
1723 | ||
c5aa993b JM |
1724 | /*ARGSUSED */ |
1725 | static void | |
fba45db2 | 1726 | es1800_transparent (char *args, int from_tty) |
c906108c SS |
1727 | { |
1728 | int console; | |
1729 | struct sgttyb modebl; | |
1730 | int fcflag; | |
1731 | int cc; | |
1732 | struct sgttyb console_mode_save; | |
1733 | int console_fc_save; | |
1734 | int es1800_fc_save; | |
1735 | int inputcnt = 80; | |
1736 | char inputbuf[80]; | |
1737 | int consolecnt = 0; | |
1738 | char consolebuf[80]; | |
1739 | int es1800_cnt = 0; | |
1740 | char es1800_buf[80]; | |
1741 | int i; | |
1742 | ||
1743 | dont_repeat (); | |
c5aa993b | 1744 | if (es1800_desc == NULL) |
c906108c SS |
1745 | { |
1746 | printf ("No emulator attached, type emulator-command first\n"); | |
1747 | return; | |
1748 | } | |
1749 | ||
1750 | printf ("\n"); | |
1751 | printf ("You are now communicating directly with the ES 1800 emulator.\n"); | |
1752 | printf ("To leave this mode (transparent mode), press ^E.\n"); | |
1753 | printf ("\n"); | |
1754 | printf (" >"); | |
1755 | fflush (stdout); | |
1756 | ||
c5aa993b | 1757 | if ((console = open ("/dev/tty", O_RDWR)) == -1) |
c906108c SS |
1758 | { |
1759 | perror_with_name ("/dev/tty:"); | |
1760 | } | |
1761 | ||
1762 | if ((fcflag = fcntl (console, F_GETFL, 0)) == -1) | |
1763 | { | |
1764 | perror_with_name ("fcntl console"); | |
1765 | } | |
1766 | ||
1767 | console_fc_save = fcflag; | |
1768 | fcflag = fcflag | FNDELAY; | |
1769 | ||
1770 | if (fcntl (console, F_SETFL, fcflag) == -1) | |
1771 | { | |
1772 | perror_with_name ("fcntl console"); | |
1773 | } | |
1774 | ||
1775 | if (ioctl (console, TIOCGETP, &modebl)) | |
1776 | { | |
1777 | perror_with_name ("ioctl console"); | |
1778 | } | |
1779 | ||
1780 | console_mode_save = modebl; | |
c5aa993b | 1781 | modebl.sg_flags = RAW; |
c906108c SS |
1782 | |
1783 | if (ioctl (console, TIOCSETP, &modebl)) | |
1784 | { | |
1785 | perror_with_name ("ioctl console"); | |
1786 | } | |
1787 | ||
c2c6d25f | 1788 | if ((fcflag = fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_GETFL, 0)) == -1) |
c906108c SS |
1789 | { |
1790 | perror_with_name ("fcntl serial"); | |
1791 | } | |
1792 | ||
1793 | es1800_fc_save = fcflag; | |
1794 | fcflag = fcflag | FNDELAY; | |
1795 | ||
c2c6d25f | 1796 | if (fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_SETFL, fcflag) == -1) |
c906108c SS |
1797 | { |
1798 | perror_with_name ("fcntl serial"); | |
1799 | } | |
1800 | ||
1801 | while (1) | |
c5aa993b | 1802 | { |
c906108c SS |
1803 | cc = read (console, inputbuf, inputcnt); |
1804 | if (cc != -1) | |
1805 | { | |
1806 | if ((*inputbuf & 0x7f) == 0x05) | |
1807 | { | |
1808 | break; | |
1809 | } | |
c5aa993b | 1810 | for (i = 0; i < cc;) |
c906108c SS |
1811 | { |
1812 | es1800_buf[es1800_cnt++] = inputbuf[i++]; | |
1813 | } | |
1814 | if ((cc = SERIAL_WRITE (es1800_desc, es1800_buf, es1800_cnt)) == -1) | |
1815 | { | |
1816 | perror_with_name ("FEL! write:"); | |
1817 | } | |
1818 | es1800_cnt -= cc; | |
c5aa993b | 1819 | if (es1800_cnt && cc) |
c906108c SS |
1820 | { |
1821 | for (i = 0; i < es1800_cnt; i++) | |
1822 | { | |
c5aa993b | 1823 | es1800_buf[i] = es1800_buf[cc + i]; |
c906108c SS |
1824 | } |
1825 | } | |
1826 | } | |
1827 | else if (errno != EWOULDBLOCK) | |
1828 | { | |
1829 | perror_with_name ("FEL! read:"); | |
1830 | } | |
c5aa993b | 1831 | |
c2c6d25f | 1832 | cc = read (DEPRECATED_SERIAL_FD (es1800_desc), inputbuf, inputcnt); |
c906108c SS |
1833 | if (cc != -1) |
1834 | { | |
c5aa993b | 1835 | for (i = 0; i < cc;) |
c906108c SS |
1836 | { |
1837 | consolebuf[consolecnt++] = inputbuf[i++]; | |
1838 | } | |
c5aa993b | 1839 | if ((cc = write (console, consolebuf, consolecnt)) == -1) |
c906108c SS |
1840 | { |
1841 | perror_with_name ("FEL! write:"); | |
1842 | } | |
1843 | consolecnt -= cc; | |
c5aa993b | 1844 | if (consolecnt && cc) |
c906108c SS |
1845 | { |
1846 | for (i = 0; i < consolecnt; i++) | |
1847 | { | |
c5aa993b | 1848 | consolebuf[i] = consolebuf[cc + i]; |
c906108c SS |
1849 | } |
1850 | } | |
1851 | } | |
1852 | else if (errno != EWOULDBLOCK) | |
1853 | { | |
1854 | perror_with_name ("FEL! read:"); | |
1855 | } | |
1856 | } | |
1857 | ||
1858 | console_fc_save = console_fc_save & !FNDELAY; | |
1859 | if (fcntl (console, F_SETFL, console_fc_save) == -1) | |
1860 | { | |
1861 | perror_with_name ("FEL! fcntl"); | |
1862 | } | |
1863 | ||
1864 | if (ioctl (console, TIOCSETP, &console_mode_save)) | |
1865 | { | |
1866 | perror_with_name ("FEL! ioctl"); | |
1867 | } | |
1868 | ||
1869 | close (console); | |
1870 | ||
c2c6d25f | 1871 | if (fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_SETFL, es1800_fc_save) == -1) |
c906108c SS |
1872 | { |
1873 | perror_with_name ("FEL! fcntl"); | |
1874 | } | |
1875 | ||
1876 | printf ("\n"); | |
1877 | ||
1878 | } | |
1879 | #endif /* PROVIDE_TRANSPARENT */ | |
1880 | ||
1881 | static void | |
fba45db2 | 1882 | es1800_init_break (char *args, int from_tty) |
c906108c SS |
1883 | { |
1884 | CORE_ADDR memaddress = 0; | |
1885 | char buf[PBUFSIZ]; | |
1886 | char base_addr[4]; | |
1887 | char *space_index; | |
1888 | char *p; | |
1889 | int k; | |
1890 | ||
1891 | if (args == NULL) | |
1892 | { | |
1893 | error_no_arg ("a trap vector"); | |
1894 | } | |
1895 | ||
1896 | if (!(space_index = strchr (args, ' '))) | |
1897 | { | |
1898 | error ("Two arguments needed (trap vector and address of break routine).\n"); | |
1899 | } | |
1900 | ||
1901 | *space_index = '\0'; | |
1902 | ||
1903 | es1800_break_vec = strtol (args, (char **) NULL, 0); | |
1904 | es1800_break_address = parse_and_eval_address (space_index + 1); | |
1905 | ||
1906 | es1800_create_break_insn (es1800_break_insn, es1800_break_vec); | |
1907 | ||
1908 | if (m68020) | |
1909 | { | |
1910 | send_with_reply ("VBR ", buf, sizeof (buf)); | |
1911 | p = buf; | |
1912 | for (k = 0; k < 4; k++) | |
1913 | { | |
c5aa993b | 1914 | if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0)) |
c906108c SS |
1915 | { |
1916 | error ("Emulator reply is too short: %s", buf); | |
1917 | } | |
c5aa993b | 1918 | base_addr[k] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]); |
c906108c SS |
1919 | } |
1920 | /* base addr of exception vector table */ | |
c5aa993b | 1921 | memaddress = *((CORE_ADDR *) base_addr); |
c906108c SS |
1922 | } |
1923 | ||
c5aa993b | 1924 | memaddress += (es1800_break_vec + 32) * 4; /* address of trap vector */ |
c906108c SS |
1925 | |
1926 | sprintf (buf, "@.L%lx=$%lx", memaddress, es1800_break_address); | |
c5aa993b JM |
1927 | send_command (buf); /* set the address of the break routine in the */ |
1928 | /* trap vector */ | |
1929 | ||
1930 | sprintf (buf, "@.L%lx=$4E714E71", es1800_break_address); /* NOP; NOP */ | |
c906108c | 1931 | send_command (buf); |
c5aa993b | 1932 | sprintf (buf, "@.L%lx=$4E714E73", es1800_break_address + 4); /* NOP; RTE */ |
c906108c | 1933 | send_command (buf); |
c5aa993b | 1934 | |
c906108c SS |
1935 | sprintf (buf, "AC2=$%lx", es1800_break_address + 4); |
1936 | /* breakpoint at es1800-break_address */ | |
1937 | send_command (buf); | |
c5aa993b | 1938 | send_command ("WHEN AC2 THEN BRK"); /* ie in exception routine */ |
c906108c SS |
1939 | |
1940 | if (from_tty) | |
1941 | { | |
1942 | printf ("Breakpoint (trap $%x) routine at address: %lx\n", | |
1943 | es1800_break_vec, es1800_break_address); | |
1944 | } | |
c5aa993b | 1945 | } |
c906108c SS |
1946 | |
1947 | static void | |
fba45db2 | 1948 | es1800_child_open (char *arg, int from_tty) |
c906108c SS |
1949 | { |
1950 | error ("Use the \"run\" command to start a child process."); | |
1951 | } | |
1952 | ||
1953 | static void | |
fba45db2 | 1954 | es1800_child_detach (char *args, int from_tty) |
c906108c SS |
1955 | { |
1956 | if (args) | |
1957 | { | |
1958 | error ("Argument given to \"detach\" when remotely debugging."); | |
1959 | } | |
c5aa993b | 1960 | |
c906108c SS |
1961 | pop_target (); |
1962 | if (from_tty) | |
1963 | { | |
1964 | printf ("Ending debugging the process %d.\n", inferior_pid); | |
1965 | } | |
1966 | } | |
1967 | ||
1968 | ||
1969 | /* Define the target subroutine names */ | |
1970 | ||
c5aa993b | 1971 | struct target_ops es1800_ops; |
c906108c | 1972 | |
c5aa993b JM |
1973 | static void |
1974 | init_es1800_ops (void) | |
c906108c | 1975 | { |
c5aa993b JM |
1976 | es1800_ops.to_shortname = "es1800"; |
1977 | es1800_ops.to_longname = "Remote serial target in ES1800-emulator protocol"; | |
1978 | es1800_ops.to_doc = "Remote debugging on the es1800 emulator via a serial line.\n\ | |
1979 | Specify the serial device it is connected to (e.g. /dev/ttya)."; | |
1980 | es1800_ops.to_open = es1800_open; | |
1981 | es1800_ops.to_close = es1800_close; | |
1982 | es1800_ops.to_attach = es1800_attach; | |
1983 | es1800_ops.to_post_attach = NULL; | |
c906108c | 1984 | es1800_ops.to_require_attach = NULL; |
c5aa993b | 1985 | es1800_ops.to_detach = es1800_detach; |
c906108c | 1986 | es1800_ops.to_require_detach = NULL; |
c5aa993b JM |
1987 | es1800_ops.to_resume = es1800_resume; |
1988 | es1800_ops.to_wait = NULL; | |
1989 | es1800_ops.to_post_wait = NULL; | |
1990 | es1800_ops.to_fetch_registers = NULL; | |
1991 | es1800_ops.to_store_registers = NULL; | |
1992 | es1800_ops.to_prepare_to_store = es1800_prepare_to_store; | |
1993 | es1800_ops.to_xfer_memory = es1800_xfer_inferior_memory; | |
1994 | es1800_ops.to_files_info = es1800_files_info; | |
1995 | es1800_ops.to_insert_breakpoint = es1800_insert_breakpoint; | |
1996 | es1800_ops.to_remove_breakpoint = es1800_remove_breakpoint; | |
1997 | es1800_ops.to_terminal_init = NULL; | |
1998 | es1800_ops.to_terminal_inferior = NULL; | |
1999 | es1800_ops.to_terminal_ours_for_output = NULL; | |
2000 | es1800_ops.to_terminal_ours = NULL; | |
2001 | es1800_ops.to_terminal_info = NULL; | |
2002 | es1800_ops.to_kill = NULL; | |
2003 | es1800_ops.to_load = es1800_load; | |
2004 | es1800_ops.to_lookup_symbol = NULL; | |
2005 | es1800_ops.to_create_inferior = es1800_create_inferior; | |
c906108c SS |
2006 | es1800_ops.to_post_startup_inferior = NULL; |
2007 | es1800_ops.to_acknowledge_created_inferior = NULL; | |
c5aa993b | 2008 | es1800_ops.to_clone_and_follow_inferior = NULL; |
c906108c SS |
2009 | es1800_ops.to_post_follow_inferior_by_clone = NULL; |
2010 | es1800_ops.to_insert_fork_catchpoint = NULL; | |
2011 | es1800_ops.to_remove_fork_catchpoint = NULL; | |
2012 | es1800_ops.to_insert_vfork_catchpoint = NULL; | |
c5aa993b | 2013 | es1800_ops.to_remove_vfork_catchpoint = NULL; |
c906108c | 2014 | es1800_ops.to_has_forked = NULL; |
c5aa993b JM |
2015 | es1800_ops.to_has_vforked = NULL; |
2016 | es1800_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
c906108c SS |
2017 | es1800_ops.to_post_follow_vfork = NULL; |
2018 | es1800_ops.to_insert_exec_catchpoint = NULL; | |
2019 | es1800_ops.to_remove_exec_catchpoint = NULL; | |
2020 | es1800_ops.to_has_execd = NULL; | |
2021 | es1800_ops.to_reported_exec_events_per_exec_call = NULL; | |
2022 | es1800_ops.to_has_exited = NULL; | |
c5aa993b JM |
2023 | es1800_ops.to_mourn_inferior = NULL; |
2024 | es1800_ops.to_can_run = 0; | |
2025 | es1800_ops.to_notice_signals = 0; | |
2026 | es1800_ops.to_thread_alive = 0; | |
2027 | es1800_ops.to_stop = 0; | |
c906108c | 2028 | es1800_ops.to_pid_to_exec_file = NULL; |
c5aa993b JM |
2029 | es1800_ops.to_core_file_to_sym_file = NULL; |
2030 | es1800_ops.to_stratum = core_stratum; | |
2031 | es1800_ops.DONT_USE = 0; | |
2032 | es1800_ops.to_has_all_memory = 0; | |
2033 | es1800_ops.to_has_memory = 1; | |
2034 | es1800_ops.to_has_stack = 0; | |
2035 | es1800_ops.to_has_registers = 0; | |
2036 | es1800_ops.to_has_execution = 0; | |
2037 | es1800_ops.to_sections = NULL; | |
2038 | es1800_ops.to_sections_end = NULL; | |
2039 | es1800_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
2040 | } |
2041 | ||
2042 | /* Define the target subroutine names */ | |
2043 | ||
c5aa993b | 2044 | struct target_ops es1800_child_ops; |
c906108c | 2045 | |
c5aa993b JM |
2046 | static void |
2047 | init_es1800_child_ops (void) | |
c906108c | 2048 | { |
c5aa993b JM |
2049 | es1800_child_ops.to_shortname = "es1800_process"; |
2050 | es1800_child_ops.to_longname = "Remote serial target in ES1800-emulator protocol"; | |
2051 | es1800_child_ops.to_doc = "Remote debugging on the es1800 emulator via a serial line.\n\ | |
c906108c | 2052 | Specify the serial device it is connected to (e.g. /dev/ttya)."; |
c5aa993b JM |
2053 | es1800_child_ops.to_open = es1800_child_open; |
2054 | es1800_child_ops.to_close = NULL; | |
2055 | es1800_child_ops.to_attach = es1800_attach; | |
c906108c | 2056 | es1800_child_ops.to_post_attach = NULL; |
c5aa993b JM |
2057 | es1800_child_ops.to_require_attach = NULL; |
2058 | es1800_child_ops.to_detach = es1800_child_detach; | |
2059 | es1800_child_ops.to_require_detach = NULL; | |
2060 | es1800_child_ops.to_resume = es1800_resume; | |
2061 | es1800_child_ops.to_wait = es1800_wait; | |
2062 | es1800_child_ops.to_post_wait = NULL; | |
2063 | es1800_child_ops.to_fetch_registers = es1800_fetch_register; | |
2064 | es1800_child_ops.to_store_registers = es1800_store_register; | |
2065 | es1800_child_ops.to_prepare_to_store = es1800_prepare_to_store; | |
2066 | es1800_child_ops.to_xfer_memory = es1800_xfer_inferior_memory; | |
2067 | es1800_child_ops.to_files_info = es1800_files_info; | |
2068 | es1800_child_ops.to_insert_breakpoint = es1800_insert_breakpoint; | |
2069 | es1800_child_ops.to_remove_breakpoint = es1800_remove_breakpoint; | |
2070 | es1800_child_ops.to_terminal_init = NULL; | |
2071 | es1800_child_ops.to_terminal_inferior = NULL; | |
2072 | es1800_child_ops.to_terminal_ours_for_output = NULL; | |
2073 | es1800_child_ops.to_terminal_ours = NULL; | |
2074 | es1800_child_ops.to_terminal_info = NULL; | |
2075 | es1800_child_ops.to_kill = es1800_kill; | |
2076 | es1800_child_ops.to_load = es1800_load; | |
2077 | es1800_child_ops.to_lookup_symbol = NULL; | |
2078 | es1800_child_ops.to_create_inferior = es1800_create_inferior; | |
c906108c SS |
2079 | es1800_child_ops.to_post_startup_inferior = NULL; |
2080 | es1800_child_ops.to_acknowledge_created_inferior = NULL; | |
2081 | es1800_child_ops.to_clone_and_follow_inferior = NULL; | |
2082 | es1800_child_ops.to_post_follow_inferior_by_clone = NULL; | |
2083 | es1800_child_ops.to_insert_fork_catchpoint = NULL; | |
2084 | es1800_child_ops.to_remove_fork_catchpoint = NULL; | |
2085 | es1800_child_ops.to_insert_vfork_catchpoint = NULL; | |
c5aa993b | 2086 | es1800_child_ops.to_remove_vfork_catchpoint = NULL; |
c906108c | 2087 | es1800_child_ops.to_has_forked = NULL; |
c5aa993b | 2088 | es1800_child_ops.to_has_vforked = NULL; |
c906108c SS |
2089 | es1800_child_ops.to_can_follow_vfork_prior_to_exec = NULL; |
2090 | es1800_child_ops.to_post_follow_vfork = NULL; | |
2091 | es1800_child_ops.to_insert_exec_catchpoint = NULL; | |
2092 | es1800_child_ops.to_remove_exec_catchpoint = NULL; | |
2093 | es1800_child_ops.to_has_execd = NULL; | |
2094 | es1800_child_ops.to_reported_exec_events_per_exec_call = NULL; | |
2095 | es1800_child_ops.to_has_exited = NULL; | |
c5aa993b JM |
2096 | es1800_child_ops.to_mourn_inferior = es1800_mourn_inferior; |
2097 | es1800_child_ops.to_can_run = 0; | |
2098 | es1800_child_ops.to_notice_signals = 0; | |
2099 | es1800_child_ops.to_thread_alive = 0; | |
2100 | es1800_child_ops.to_stop = 0; | |
c906108c SS |
2101 | es1800_child_ops.to_pid_to_exec_file = NULL; |
2102 | es1800_child_ops.to_core_file_to_sym_file = NULL; | |
c5aa993b JM |
2103 | es1800_child_ops.to_stratum = process_stratum; |
2104 | es1800_child_ops.DONT_USE = 0; | |
2105 | es1800_child_ops.to_has_all_memory = 1; | |
2106 | es1800_child_ops.to_has_memory = 1; | |
2107 | es1800_child_ops.to_has_stack = 1; | |
2108 | es1800_child_ops.to_has_registers = 1; | |
2109 | es1800_child_ops.to_has_execution = 1; | |
2110 | es1800_child_ops.to_sections = NULL; | |
2111 | es1800_child_ops.to_sections_end = NULL; | |
2112 | es1800_child_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
2113 | } |
2114 | ||
2115 | void | |
fba45db2 | 2116 | _initialize_es1800 (void) |
c906108c | 2117 | { |
c5aa993b JM |
2118 | init_es1800_ops (); |
2119 | init_es1800_child_ops (); | |
c906108c SS |
2120 | add_target (&es1800_ops); |
2121 | add_target (&es1800_child_ops); | |
2122 | #ifdef PROVIDE_TRANSPARENT | |
2123 | add_com ("transparent", class_support, es1800_transparent, | |
2124 | "Start transparent communication with the ES 1800 emulator."); | |
2125 | #endif /* PROVIDE_TRANSPARENT */ | |
2126 | add_com ("init_break", class_support, es1800_init_break, | |
c5aa993b | 2127 | "Download break routine and initialize break facility on ES 1800"); |
c906108c | 2128 | } |