Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Memory-access and commands for remote es1800 processes, for GDB. |
29e57380 | 2 | Copyright (C) 1988, 1992, 2001 Free Software Foundation, Inc. |
c906108c SS |
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" | |
c906108c | 107 | #include "command.h" |
1adeb98a | 108 | #include "symfile.h" |
c906108c SS |
109 | #include "remote-utils.h" |
110 | #include "gdbcore.h" | |
111 | #include "serial.h" | |
4e052eda | 112 | #include "regcache.h" |
c906108c SS |
113 | |
114 | /* Prototypes for local functions */ | |
115 | ||
a14ed312 | 116 | static void es1800_child_detach (char *, int); |
c906108c | 117 | |
a14ed312 | 118 | static void es1800_child_open (char *, int); |
c906108c | 119 | |
a14ed312 | 120 | static void es1800_transparent (char *, int); |
c906108c | 121 | |
a14ed312 | 122 | static void es1800_create_inferior (char *, char *, char **); |
c906108c | 123 | |
a14ed312 | 124 | static void es1800_load (char *, int); |
c906108c | 125 | |
a14ed312 | 126 | static void es1800_kill (void); |
c906108c | 127 | |
a14ed312 | 128 | static int verify_break (int); |
c906108c | 129 | |
a14ed312 | 130 | static int es1800_remove_breakpoint (CORE_ADDR, char *); |
c906108c | 131 | |
a14ed312 | 132 | static int es1800_insert_breakpoint (CORE_ADDR, char *); |
c906108c | 133 | |
a14ed312 | 134 | static void es1800_files_info (struct target_ops *); |
c906108c SS |
135 | |
136 | static int | |
a14ed312 | 137 | es1800_xfer_inferior_memory (CORE_ADDR, char *, int, int, |
29e57380 | 138 | struct mem_attrib *, struct target_ops *); |
c906108c | 139 | |
a14ed312 | 140 | static void es1800_prepare_to_store (void); |
c906108c | 141 | |
a14ed312 | 142 | static int es1800_wait (int, struct target_waitstatus *); |
c906108c | 143 | |
a14ed312 | 144 | static void es1800_resume (int, int, enum target_signal); |
c906108c | 145 | |
a14ed312 | 146 | static void es1800_detach (char *, int); |
c906108c | 147 | |
a14ed312 | 148 | static void es1800_attach (char *, int); |
c906108c | 149 | |
a14ed312 | 150 | static int damn_b (char *); |
c906108c | 151 | |
a14ed312 | 152 | static void es1800_open (char *, int); |
c906108c | 153 | |
a14ed312 | 154 | static void es1800_timer (void); |
c906108c | 155 | |
a14ed312 | 156 | static void es1800_reset (char *); |
c906108c | 157 | |
a14ed312 | 158 | static void es1800_request_quit (void); |
c906108c | 159 | |
a14ed312 | 160 | static int readchar (void); |
c906108c | 161 | |
a14ed312 | 162 | static void expect (char *, int); |
c906108c | 163 | |
a14ed312 | 164 | static void expect_prompt (void); |
c906108c | 165 | |
a14ed312 | 166 | static void download (FILE *, int, int); |
c906108c SS |
167 | |
168 | #if 0 | |
a14ed312 | 169 | static void bfd_copy (bfd *, bfd *); |
c906108c SS |
170 | #endif |
171 | ||
a14ed312 | 172 | static void get_break_addr (int, CORE_ADDR *); |
c906108c | 173 | |
a14ed312 | 174 | static int fromhex (int); |
c906108c | 175 | |
a14ed312 | 176 | static int tohex (int); |
c906108c | 177 | |
a14ed312 | 178 | static void es1800_close (int); |
c906108c | 179 | |
a14ed312 | 180 | static void es1800_fetch_registers (void); |
c906108c | 181 | |
a14ed312 | 182 | static void es1800_fetch_register (int); |
c906108c | 183 | |
a14ed312 | 184 | static void es1800_store_register (int); |
c906108c | 185 | |
a14ed312 | 186 | static void es1800_read_bytes (CORE_ADDR, char *, int); |
c906108c | 187 | |
a14ed312 | 188 | static void es1800_write_bytes (CORE_ADDR, char *, int); |
c906108c | 189 | |
a14ed312 | 190 | static void send_with_reply (char *, char *, int); |
c906108c | 191 | |
a14ed312 | 192 | static void send_command (char *); |
c906108c | 193 | |
a14ed312 | 194 | static void send (char *); |
c906108c | 195 | |
a14ed312 | 196 | static void getmessage (char *, int); |
c906108c | 197 | |
a14ed312 | 198 | static void es1800_mourn_inferior (void); |
c906108c | 199 | |
a14ed312 | 200 | static void es1800_create_break_insn (char *, int); |
c906108c | 201 | |
a14ed312 | 202 | static void es1800_init_break (char *, int); |
c906108c SS |
203 | |
204 | /* Local variables */ | |
205 | ||
206 | /* FIXME: Convert this to use "set remotedebug" instead. */ | |
207 | #define LOG_FILE "es1800.log" | |
208 | #if defined (LOG_FILE) | |
209 | static FILE *log_file; | |
210 | #endif | |
211 | ||
c5aa993b | 212 | extern struct target_ops es1800_ops; /* Forward decl */ |
c906108c SS |
213 | extern struct target_ops es1800_child_ops; /* Forward decl */ |
214 | ||
215 | static int kiodebug; | |
c5aa993b JM |
216 | static int timeout = 100; |
217 | static char *savename; /* Name of i/o device used */ | |
c906108c | 218 | static serial_ttystate es1800_saved_ttystate; |
c5aa993b | 219 | static int es1800_fc_save; /* Save fcntl state */ |
c906108c SS |
220 | |
221 | /* indicates that the emulator uses 32-bit data-adress (68020-mode) | |
222 | instead of 24-bit (68000 -mode) */ | |
223 | ||
224 | static int m68020; | |
225 | ||
226 | #define MODE (m68020 ? "M68020" : "M68000" ) | |
227 | #define ES1800_BREAK_VEC (0xf) | |
228 | ||
229 | /* Descriptor for I/O to remote machine. Initialize it to NULL so that | |
230 | es1800_open knows that we don't have a file open when the program | |
231 | starts. */ | |
232 | ||
233 | static serial_t es1800_desc = NULL; | |
234 | ||
235 | #define PBUFSIZ 1000 | |
236 | #define HDRLEN sizeof("@.BAAAAAAAA=$VV\r") | |
237 | ||
238 | /* Maximum number of bytes to read/write at once. The value here | |
239 | is chosen to fill up a packet. */ | |
240 | ||
241 | #define MAXBUFBYTES ((PBUFSIZ-150)*16/75 ) | |
242 | ||
243 | static int es1800_break_vec = 0; | |
244 | static char es1800_break_insn[2]; | |
245 | static long es1800_break_address; | |
c5aa993b | 246 | static void (*old_sigint) (); /* Old signal-handler for sigint */ |
c906108c SS |
247 | static jmp_buf interrupt; |
248 | ||
249 | /* Local signalhandler to allow breaking tranfers or program run. | |
250 | Rely on global variables: old_sigint(), interrupt */ | |
251 | ||
252 | static void | |
fba45db2 | 253 | es1800_request_quit (void) |
c906108c SS |
254 | { |
255 | /* restore original signalhandler */ | |
256 | signal (SIGINT, old_sigint); | |
257 | longjmp (interrupt, 1); | |
258 | } | |
259 | ||
260 | ||
261 | /* Reset emulator. | |
262 | Sending reset character(octal 32) to emulator. | |
c5aa993b | 263 | quit - return to '(esgdb)' prompt or continue */ |
c906108c SS |
264 | |
265 | static void | |
fba45db2 | 266 | es1800_reset (char *quit) |
c906108c SS |
267 | { |
268 | char buf[80]; | |
269 | ||
270 | if (quit) | |
271 | { | |
272 | printf ("\nResetting emulator... "); | |
273 | } | |
274 | strcpy (buf, "\032"); | |
275 | send (buf); | |
276 | expect_prompt (); | |
277 | if (quit) | |
278 | { | |
279 | error ("done\n"); | |
280 | } | |
281 | } | |
282 | ||
283 | ||
284 | /* Open a connection to a remote debugger and push the new target | |
285 | onto the stack. Check if the emulator is responding and find out | |
286 | what kind of processor the emulator is connected to. | |
287 | Initiate the breakpoint handling in the emulator. | |
288 | ||
289 | name - the filename used for communication (ex. '/dev/tta') | |
290 | from_tty - says whether to be verbose or not */ | |
291 | ||
292 | static void | |
fba45db2 | 293 | es1800_open (char *name, int from_tty) |
c906108c SS |
294 | { |
295 | char buf[PBUFSIZ]; | |
296 | char *p; | |
297 | int i, fcflag; | |
298 | ||
299 | m68020 = 0; | |
300 | ||
c5aa993b | 301 | if (!name) /* no device name given in target command */ |
c906108c SS |
302 | { |
303 | error_no_arg ("serial port device name"); | |
304 | } | |
305 | ||
306 | target_preopen (from_tty); | |
307 | es1800_close (0); | |
308 | ||
309 | /* open the device and configure it for communication */ | |
310 | ||
311 | #ifndef DEBUG_STDIN | |
312 | ||
313 | es1800_desc = SERIAL_OPEN (name); | |
314 | if (es1800_desc == NULL) | |
315 | { | |
316 | perror_with_name (name); | |
317 | } | |
318 | savename = savestring (name, strlen (name)); | |
319 | ||
320 | es1800_saved_ttystate = SERIAL_GET_TTY_STATE (es1800_desc); | |
321 | ||
c2c6d25f | 322 | if ((fcflag = fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_GETFL, 0)) == -1) |
c906108c SS |
323 | { |
324 | perror_with_name ("fcntl serial"); | |
325 | } | |
326 | es1800_fc_save = fcflag; | |
327 | ||
c5aa993b | 328 | fcflag = (fcflag & (FREAD | FWRITE)); /* mask out any funny stuff */ |
c2c6d25f | 329 | if (fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_SETFL, fcflag) == -1) |
c906108c SS |
330 | { |
331 | perror_with_name ("fcntl serial"); | |
332 | } | |
333 | ||
334 | if (baud_rate != -1) | |
335 | { | |
336 | if (SERIAL_SETBAUDRATE (es1800_desc, baud_rate)) | |
337 | { | |
338 | SERIAL_CLOSE (es1800_desc); | |
339 | perror_with_name (name); | |
340 | } | |
341 | } | |
342 | ||
343 | SERIAL_RAW (es1800_desc); | |
344 | ||
345 | /* If there is something sitting in the buffer we might take it as a | |
346 | response to a command, which would be bad. */ | |
347 | SERIAL_FLUSH_INPUT (es1800_desc); | |
348 | ||
c5aa993b | 349 | #endif /* DEBUG_STDIN */ |
c906108c SS |
350 | |
351 | push_target (&es1800_ops); /* Switch to using remote target now */ | |
352 | if (from_tty) | |
353 | { | |
354 | printf ("Remote ES1800 debugging using %s\n", name); | |
355 | } | |
356 | ||
357 | #if defined (LOG_FILE) | |
358 | ||
359 | log_file = fopen (LOG_FILE, "w"); | |
360 | if (log_file == NULL) | |
361 | { | |
362 | perror_with_name (LOG_FILE); | |
363 | } | |
364 | ||
c5aa993b | 365 | #endif /* LOG_FILE */ |
c906108c SS |
366 | |
367 | /* Hello? Are you there?, also check mode */ | |
368 | ||
369 | /* send_with_reply( "DB 0 TO 1", buf, sizeof(buf)); */ | |
c5aa993b | 370 | /* for (p = buf, i = 0; *p++ =='0';) *//* count the number of zeros */ |
c906108c SS |
371 | /* i++; */ |
372 | ||
373 | send ("\032"); | |
c5aa993b | 374 | getmessage (buf, sizeof (buf)); /* send reset character */ |
c906108c SS |
375 | |
376 | if (from_tty) | |
377 | { | |
378 | printf ("Checking mode.... "); | |
379 | } | |
c5aa993b | 380 | /* m68020 = (i==8); *//* if eight zeros then we are in m68020 mode */ |
c906108c | 381 | |
c5aa993b | 382 | /* What kind of processor am i talking to ? */ |
c906108c | 383 | p = buf; |
c5aa993b JM |
384 | while (*p++ != '\n') |
385 | {; | |
386 | } | |
387 | while (*p++ != '\n') | |
388 | {; | |
389 | } | |
390 | while (*p++ != '\n') | |
391 | {; | |
392 | } | |
393 | for (i = 0; i < 20; i++, p++) | |
394 | {; | |
395 | } | |
c906108c SS |
396 | m68020 = !strncmp (p, "68020", 5); |
397 | if (from_tty) | |
398 | { | |
399 | printf ("You are in %s(%c%c%c%c%c)-mode\n", MODE, p[0], p[1], p[2], | |
400 | p[3], p[4]); | |
401 | } | |
402 | ||
403 | /* if no init_break statement is present in .gdb file we have to check | |
404 | whether to download a breakpoint routine or not */ | |
405 | ||
406 | #if 0 | |
407 | if ((es1800_break_vec == 0) || (verify_break (es1800_break_vec) != 0) | |
408 | && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? ")) | |
409 | { | |
410 | CORE_ADDR memaddress; | |
411 | printf ("Give the start address of the breakpoint routine: "); | |
412 | scanf ("%li", &memaddress); | |
413 | es1800_init_break ((es1800_break_vec ? es1800_break_vec : | |
414 | ES1800_BREAK_VEC), memaddress); | |
415 | } | |
416 | #endif | |
417 | ||
418 | } | |
419 | ||
420 | /* Close out all files and local state before this target loses control. | |
c5aa993b | 421 | quitting - are we quitting gdb now? */ |
c906108c SS |
422 | |
423 | static void | |
fba45db2 | 424 | es1800_close (int quitting) |
c906108c SS |
425 | { |
426 | if (es1800_desc != NULL) | |
427 | { | |
428 | printf ("\nClosing connection to emulator...\n"); | |
429 | if (SERIAL_SET_TTY_STATE (es1800_desc, es1800_saved_ttystate) < 0) | |
430 | print_sys_errmsg ("warning: unable to restore tty state", errno); | |
c2c6d25f | 431 | fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_SETFL, es1800_fc_save); |
c906108c SS |
432 | SERIAL_CLOSE (es1800_desc); |
433 | es1800_desc = NULL; | |
434 | } | |
435 | if (savename != NULL) | |
436 | { | |
b8c9b27d | 437 | xfree (savename); |
c906108c SS |
438 | } |
439 | savename = NULL; | |
440 | ||
441 | #if defined (LOG_FILE) | |
442 | ||
443 | if (log_file != NULL) | |
444 | { | |
445 | if (ferror (log_file)) | |
446 | { | |
447 | printf ("Error writing log file.\n"); | |
448 | } | |
449 | if (fclose (log_file) != 0) | |
450 | { | |
451 | printf ("Error closing log file.\n"); | |
452 | } | |
453 | log_file = NULL; | |
454 | } | |
455 | ||
c5aa993b | 456 | #endif /* LOG_FILE */ |
c906108c SS |
457 | |
458 | } | |
459 | ||
460 | /* Attaches to a process on the target side | |
c5aa993b JM |
461 | proc_id - the id of the process to be attached. |
462 | from_tty - says whether to be verbose or not */ | |
c906108c SS |
463 | |
464 | static void | |
fba45db2 | 465 | es1800_attach (char *args, int from_tty) |
c906108c SS |
466 | { |
467 | error ("Cannot attach to pid %s, this feature is not implemented yet.", | |
468 | args); | |
469 | } | |
470 | ||
471 | ||
472 | /* Takes a program previously attached to and detaches it. | |
473 | We better not have left any breakpoints | |
474 | in the program or it'll die when it hits one. | |
475 | Close the open connection to the remote debugger. | |
476 | Use this when you want to detach and do something else | |
477 | with your gdb. | |
c5aa993b | 478 | |
c906108c SS |
479 | args - arguments given to the 'detach' command |
480 | from_tty - says whether to be verbose or not */ | |
481 | ||
482 | static void | |
fba45db2 | 483 | es1800_detach (char *args, int from_tty) |
c906108c SS |
484 | { |
485 | if (args) | |
486 | { | |
487 | error ("Argument given to \"detach\" when remotely debugging."); | |
488 | } | |
489 | pop_target (); | |
490 | if (from_tty) | |
491 | { | |
492 | printf ("Ending es1800 remote debugging.\n"); | |
493 | } | |
494 | } | |
495 | ||
496 | ||
497 | /* Tell the remote machine to resume. | |
498 | step - single-step or run free | |
499 | siggnal - the signal value to be given to the target (0 = no signal) */ | |
500 | ||
501 | static void | |
fba45db2 | 502 | es1800_resume (int pid, int step, enum target_signal siggnal) |
c906108c SS |
503 | { |
504 | char buf[PBUFSIZ]; | |
505 | ||
506 | if (siggnal) | |
507 | { | |
508 | error ("Can't send signals to a remote system."); | |
509 | } | |
510 | if (step) | |
511 | { | |
c5aa993b | 512 | strcpy (buf, "STP\r"); |
c906108c SS |
513 | send (buf); |
514 | } | |
515 | else | |
516 | { | |
517 | send_command ("RBK"); | |
518 | } | |
519 | } | |
520 | ||
521 | /* Wait until the remote machine stops, then return, | |
522 | storing status in STATUS just as `wait' would. | |
523 | status - */ | |
c5aa993b | 524 | |
c906108c | 525 | static int |
fba45db2 | 526 | es1800_wait (int pid, struct target_waitstatus *status) |
c906108c SS |
527 | { |
528 | unsigned char buf[PBUFSIZ]; | |
529 | int old_timeout = timeout; | |
530 | ||
531 | status->kind = TARGET_WAITKIND_EXITED; | |
532 | status->value.integer = 0; | |
533 | ||
c5aa993b | 534 | timeout = 0; /* Don't time out -- user program is running. */ |
c906108c SS |
535 | if (!setjmp (interrupt)) |
536 | { | |
537 | old_sigint = signal (SIGINT, es1800_request_quit); | |
538 | while (1) | |
c5aa993b JM |
539 | { |
540 | getmessage (buf, sizeof (buf)); | |
541 | if (strncmp (buf, "\r\n* BREAK *", 11) == 0) | |
c906108c SS |
542 | { |
543 | status->kind = TARGET_WAITKIND_STOPPED; | |
544 | status->value.sig = TARGET_SIGNAL_TRAP; | |
545 | send_command ("STP"); /* Restore stack and PC and such */ | |
546 | if (m68020) | |
547 | { | |
548 | send_command ("STP"); | |
549 | } | |
550 | break; | |
551 | } | |
552 | if (strncmp (buf, "STP\r\n ", 6) == 0) | |
553 | { | |
554 | status->kind = TARGET_WAITKIND_STOPPED; | |
555 | status->value.sig = TARGET_SIGNAL_TRAP; | |
556 | break; | |
557 | } | |
558 | if (buf[strlen (buf) - 2] == 'R') | |
559 | { | |
560 | printf ("Unexpected emulator reply: \n%s\n", buf); | |
561 | } | |
562 | else | |
563 | { | |
564 | printf ("Unexpected stop: \n%s\n", buf); | |
565 | status->kind = TARGET_WAITKIND_STOPPED; | |
566 | status->value.sig = TARGET_SIGNAL_QUIT; | |
567 | break; | |
568 | } | |
c5aa993b | 569 | } |
c906108c SS |
570 | } |
571 | else | |
572 | { | |
573 | fflush (stdin); | |
574 | printf ("\nStopping emulator..."); | |
575 | if (!setjmp (interrupt)) | |
576 | { | |
577 | old_sigint = signal (SIGINT, es1800_request_quit); | |
578 | send_command ("STP"); | |
579 | printf (" emulator stopped\n"); | |
580 | status->kind = TARGET_WAITKIND_STOPPED; | |
581 | status->value.sig = TARGET_SIGNAL_INT; | |
c5aa993b | 582 | } |
c906108c SS |
583 | else |
584 | { | |
585 | fflush (stdin); | |
c5aa993b | 586 | es1800_reset ((char *) 1); |
c906108c SS |
587 | } |
588 | } | |
589 | signal (SIGINT, old_sigint); | |
590 | timeout = old_timeout; | |
591 | return (0); | |
592 | } | |
593 | ||
594 | ||
595 | /* Fetch register values from remote machine. | |
596 | regno - the register to be fetched (fetch all registers if -1) */ | |
597 | ||
598 | static void | |
fba45db2 | 599 | es1800_fetch_register (int regno) |
c906108c SS |
600 | { |
601 | char buf[PBUFSIZ]; | |
602 | int k; | |
603 | int r; | |
604 | char *p; | |
c5aa993b JM |
605 | static char regtab[18][4] = |
606 | { | |
607 | "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ", | |
608 | "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP", | |
609 | "SR ", "PC " | |
610 | }; | |
c906108c SS |
611 | |
612 | if ((regno < 15) || (regno == 16) || (regno == 17)) | |
613 | { | |
614 | r = regno * 4; | |
615 | send_with_reply (regtab[regno], buf, sizeof (buf)); | |
616 | p = buf; | |
617 | for (k = 0; k < 4; k++) | |
618 | { | |
c5aa993b | 619 | if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0)) |
c906108c SS |
620 | { |
621 | error ("Emulator reply is too short: %s", buf); | |
622 | } | |
c5aa993b | 623 | registers[r++] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]); |
c906108c SS |
624 | } |
625 | } | |
626 | else | |
627 | { | |
628 | es1800_fetch_registers (); | |
629 | } | |
630 | } | |
631 | ||
632 | /* Read the remote registers into REGISTERS. | |
633 | Always fetches all registers. */ | |
634 | ||
635 | static void | |
fba45db2 | 636 | es1800_fetch_registers (void) |
c906108c SS |
637 | { |
638 | char buf[PBUFSIZ]; | |
639 | char SR_buf[PBUFSIZ]; | |
640 | int i; | |
641 | int k; | |
642 | int r; | |
643 | char *p; | |
644 | ||
645 | send_with_reply ("DR", buf, sizeof (buf)); | |
646 | ||
647 | /* Reply is edited to a string that describes registers byte by byte, | |
648 | each byte encoded as two hex characters. */ | |
649 | ||
650 | p = buf; | |
651 | r = 0; | |
652 | ||
653 | /* parsing row one - D0-D7-registers */ | |
654 | ||
c5aa993b JM |
655 | while (*p++ != '\n') |
656 | {; | |
657 | } | |
c906108c SS |
658 | for (i = 4; i < 70; i += (i == 39 ? 3 : 1)) |
659 | { | |
660 | for (k = 0; k < 4; k++) | |
661 | { | |
c5aa993b | 662 | if (p[i + 0] == 0 || p[i + 1] == 0) |
c906108c SS |
663 | { |
664 | error ("Emulator reply is too short: %s", buf); | |
665 | } | |
c5aa993b | 666 | registers[r++] = (fromhex (p[i + 0]) * 16) + fromhex (p[i + 1]); |
c906108c SS |
667 | i += 2; |
668 | } | |
669 | } | |
670 | p += i; | |
671 | ||
672 | /* parsing row two - A0-A6-registers */ | |
673 | ||
c5aa993b JM |
674 | while (*p++ != '\n') |
675 | {; | |
676 | } | |
c906108c SS |
677 | for (i = 4; i < 61; i += (i == 39 ? 3 : 1)) |
678 | { | |
679 | for (k = 0; k < 4; k++) | |
680 | { | |
c5aa993b | 681 | if (p[i + 0] == 0 || p[i + 1] == 0) |
c906108c SS |
682 | { |
683 | error ("Emulator reply is too short: %s", buf); | |
684 | } | |
c5aa993b | 685 | registers[r++] = (fromhex (p[i + 0])) * 16 + fromhex (p[i + 1]); |
c906108c SS |
686 | i += 2; |
687 | } | |
688 | } | |
689 | p += i; | |
690 | ||
c5aa993b JM |
691 | while (*p++ != '\n') |
692 | {; | |
693 | } | |
c906108c SS |
694 | |
695 | /* fetch SSP-, SR- and PC-registers */ | |
696 | ||
697 | /* first - check STATUS-word and decide which stackpointer to use */ | |
698 | ||
699 | send_with_reply ("SR", SR_buf, sizeof (SR_buf)); | |
700 | p = SR_buf; | |
701 | p += 5; | |
702 | ||
703 | if (m68020) | |
704 | { | |
c5aa993b | 705 | if (*p == '3') /* use masterstackpointer MSP */ |
c906108c SS |
706 | { |
707 | send_with_reply ("MSP", buf, sizeof (buf)); | |
708 | } | |
709 | else if (*p == '2') /* use interruptstackpointer ISP */ | |
710 | { | |
711 | send_with_reply ("ISP", buf, sizeof (buf)); | |
712 | } | |
c5aa993b JM |
713 | else |
714 | /* use userstackpointer USP */ | |
c906108c | 715 | { |
c5aa993b | 716 | send_with_reply ("USP", buf, sizeof (buf)); |
c906108c SS |
717 | } |
718 | p = buf; | |
c5aa993b | 719 | for (k = 0; k < 4; k++) |
c906108c | 720 | { |
c5aa993b | 721 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
722 | { |
723 | error ("Emulator reply is too short: %s", buf); | |
724 | } | |
c5aa993b | 725 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
c906108c SS |
726 | } |
727 | ||
728 | p = SR_buf; | |
729 | for (k = 0; k < 4; k++) | |
730 | { | |
c5aa993b | 731 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
732 | { |
733 | error ("Emulator reply is too short: %s", buf); | |
734 | } | |
735 | registers[r++] = | |
c5aa993b | 736 | fromhex (SR_buf[k * 2 + 1]) * 16 + fromhex (SR_buf[k * 2 + 2]); |
c906108c SS |
737 | } |
738 | send_with_reply ("PC", buf, sizeof (buf)); | |
739 | p = buf; | |
c5aa993b | 740 | for (k = 0; k < 4; k++) |
c906108c | 741 | { |
c5aa993b | 742 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
743 | { |
744 | error ("Emulator reply is too short: %s", buf); | |
745 | } | |
c5aa993b | 746 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
c906108c SS |
747 | } |
748 | } | |
c5aa993b JM |
749 | else |
750 | /* 68000-mode */ | |
751 | { | |
752 | if (*p == '2') /* use supervisorstackpointer SSP */ | |
c906108c | 753 | { |
c5aa993b | 754 | send_with_reply ("SSP", buf, sizeof (buf)); |
c906108c | 755 | } |
c5aa993b JM |
756 | else |
757 | /* use userstackpointer USP */ | |
c906108c | 758 | { |
c5aa993b | 759 | send_with_reply ("USP", buf, sizeof (buf)); |
c906108c SS |
760 | } |
761 | ||
762 | /* fetch STACKPOINTER */ | |
763 | ||
764 | p = buf; | |
765 | for (k = 0; k < 4; k++) | |
766 | { | |
c5aa993b | 767 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
768 | { |
769 | error ("Emulator reply is too short: %s", buf); | |
770 | } | |
c5aa993b | 771 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
c906108c SS |
772 | } |
773 | ||
774 | /* fetch STATUS */ | |
775 | ||
776 | p = SR_buf; | |
777 | for (k = 0; k < 4; k++) | |
778 | { | |
c5aa993b | 779 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
780 | { |
781 | error ("Emulator reply is too short: %s", buf); | |
782 | } | |
783 | registers[r++] = | |
c5aa993b | 784 | fromhex (SR_buf[k * 2 + 1]) * 16 + fromhex (SR_buf[k * 2 + 2]); |
c906108c SS |
785 | } |
786 | ||
787 | /* fetch PC */ | |
788 | ||
c5aa993b | 789 | send_with_reply ("PC", buf, sizeof (buf)); |
c906108c SS |
790 | p = buf; |
791 | for (k = 0; k < 4; k++) | |
792 | { | |
c5aa993b | 793 | if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0) |
c906108c SS |
794 | { |
795 | error ("Emulator reply is too short: %s", buf); | |
796 | } | |
c5aa993b JM |
797 | registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]); |
798 | } | |
c906108c SS |
799 | } |
800 | } | |
801 | ||
802 | /* Store register value, located in REGISTER, on the target processor. | |
803 | regno - the register-number of the register to store | |
c5aa993b | 804 | (-1 means store them all) |
c906108c SS |
805 | FIXME: Return errno value. */ |
806 | ||
807 | static void | |
fba45db2 | 808 | es1800_store_register (int regno) |
c906108c SS |
809 | { |
810 | ||
811 | static char regtab[18][4] = | |
c5aa993b JM |
812 | { |
813 | "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ", | |
814 | "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP", | |
815 | "SR ", "PC " | |
816 | }; | |
c906108c SS |
817 | |
818 | char buf[PBUFSIZ]; | |
819 | char SR_buf[PBUFSIZ]; | |
820 | char stack_pointer[4]; | |
821 | char *p; | |
822 | int i; | |
823 | int j; | |
824 | int k; | |
825 | unsigned char *r; | |
826 | ||
827 | r = (unsigned char *) registers; | |
828 | ||
c5aa993b | 829 | if (regno == -1) /* write all registers */ |
c906108c SS |
830 | { |
831 | j = 0; | |
832 | k = 18; | |
833 | } | |
c5aa993b JM |
834 | else |
835 | /* write one register */ | |
c906108c SS |
836 | { |
837 | j = regno; | |
c5aa993b JM |
838 | k = regno + 1; |
839 | r += regno * 4; | |
840 | } | |
c906108c SS |
841 | |
842 | if ((regno == -1) || (regno == 15)) | |
843 | { | |
844 | /* fetch current status */ | |
845 | send_with_reply ("SR", SR_buf, sizeof (SR_buf)); | |
846 | p = SR_buf; | |
847 | p += 5; | |
848 | if (m68020) | |
849 | { | |
c5aa993b | 850 | if (*p == '3') /* use masterstackpointer MSP */ |
c906108c | 851 | { |
c5aa993b | 852 | strcpy (stack_pointer, "MSP"); |
c906108c SS |
853 | } |
854 | else | |
855 | { | |
c5aa993b | 856 | if (*p == '2') /* use interruptstackpointer ISP */ |
c906108c | 857 | { |
c5aa993b | 858 | strcpy (stack_pointer, "ISP"); |
c906108c SS |
859 | } |
860 | else | |
861 | { | |
c5aa993b | 862 | strcpy (stack_pointer, "USP"); /* use userstackpointer USP */ |
c906108c SS |
863 | } |
864 | } | |
865 | } | |
c5aa993b JM |
866 | else |
867 | /* 68000-mode */ | |
c906108c | 868 | { |
c5aa993b | 869 | if (*p == '2') /* use supervisorstackpointer SSP */ |
c906108c | 870 | { |
c5aa993b | 871 | strcpy (stack_pointer, "SSP"); |
c906108c SS |
872 | } |
873 | else | |
874 | { | |
c5aa993b | 875 | strcpy (stack_pointer, "USP"); /* use userstackpointer USP */ |
c906108c SS |
876 | } |
877 | } | |
c5aa993b | 878 | strcpy (regtab[15], stack_pointer); |
c906108c SS |
879 | } |
880 | ||
c5aa993b | 881 | for (i = j; i < k; i++) |
c906108c SS |
882 | { |
883 | buf[0] = regtab[i][0]; | |
884 | buf[1] = regtab[i][1]; | |
885 | buf[2] = regtab[i][2]; | |
886 | buf[3] = '='; | |
887 | buf[4] = '$'; | |
888 | buf[5] = tohex ((*r >> 4) & 0x0f); | |
889 | buf[6] = tohex (*r++ & 0x0f); | |
890 | buf[7] = tohex ((*r >> 4) & 0x0f); | |
891 | buf[8] = tohex (*r++ & 0x0f); | |
892 | buf[9] = tohex ((*r >> 4) & 0x0f); | |
893 | buf[10] = tohex (*r++ & 0x0f); | |
894 | buf[11] = tohex ((*r >> 4) & 0x0f); | |
895 | buf[12] = tohex (*r++ & 0x0f); | |
896 | buf[13] = 0; | |
897 | ||
c5aa993b | 898 | send_with_reply (buf, buf, sizeof (buf)); /* FIXME, reply not used? */ |
c906108c SS |
899 | } |
900 | } | |
901 | ||
902 | ||
903 | /* Prepare to store registers. */ | |
904 | ||
c5aa993b | 905 | static void |
fba45db2 | 906 | es1800_prepare_to_store (void) |
c906108c SS |
907 | { |
908 | /* Do nothing, since we can store individual regs */ | |
909 | } | |
910 | ||
911 | /* Convert hex digit A to a number. */ | |
912 | ||
913 | static int | |
fba45db2 | 914 | fromhex (int a) |
c906108c SS |
915 | { |
916 | if (a >= '0' && a <= '9') | |
917 | { | |
918 | return a - '0'; | |
919 | } | |
920 | else if (a >= 'a' && a <= 'f') | |
921 | { | |
922 | return a - 'a' + 10; | |
923 | } | |
924 | else if (a >= 'A' && a <= 'F') | |
925 | { | |
926 | return a - 'A' + 10; | |
927 | } | |
928 | else | |
929 | { | |
930 | error ("Reply contains invalid hex digit"); | |
931 | } | |
932 | return (-1); | |
933 | } | |
934 | ||
935 | ||
936 | /* Convert number NIB to a hex digit. */ | |
937 | ||
938 | static int | |
fba45db2 | 939 | tohex (int nib) |
c906108c SS |
940 | { |
941 | if (nib < 10) | |
942 | { | |
943 | return ('0' + nib); | |
944 | } | |
945 | else | |
946 | { | |
947 | return ('A' + nib - 10); | |
948 | } | |
949 | } | |
950 | ||
951 | /* Read or write LEN bytes from inferior memory at MEMADDR, transferring | |
952 | to or from debugger address MYADDR. Write to inferior if WRITE is | |
953 | nonzero. Returns length of data written or read; 0 for error. | |
c5aa993b | 954 | |
c906108c SS |
955 | memaddr - the target's address |
956 | myaddr - gdb's address | |
957 | len - number of bytes | |
d742f2c2 KB |
958 | write - write if != 0 otherwise read |
959 | tops - unused */ | |
c906108c SS |
960 | |
961 | static int | |
d742f2c2 | 962 | es1800_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len, |
29e57380 C |
963 | int write, |
964 | struct mem_attrib *attrib ATTRIBUTE_UNUSED, | |
965 | struct target_ops *target ATTRIBUTE_UNUSED) | |
c906108c SS |
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 | { | |
e1e9e218 | 1035 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
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 | ||
d742f2c2 | 1068 | /* Display information about the current target. TOPS is unused. */ |
c906108c SS |
1069 | |
1070 | static void | |
d742f2c2 | 1071 | es1800_files_info (struct target_ops *tops) |
c906108c SS |
1072 | { |
1073 | printf ("ES1800 Attached to %s at %d baud in %s mode\n", savename, 19200, | |
1074 | MODE); | |
1075 | } | |
1076 | ||
1077 | ||
1078 | /* We read the contents of the target location and stash it, | |
1079 | then overwrite it with a breakpoint instruction. | |
c5aa993b | 1080 | |
c906108c SS |
1081 | addr - is the target location in the target machine. |
1082 | contents_cache - is a pointer to memory allocated for saving the target contents. | |
c5aa993b JM |
1083 | It is guaranteed by the caller to be long enough to save sizeof |
1084 | BREAKPOINT bytes. | |
1085 | ||
c906108c SS |
1086 | FIXME: This size is target_arch dependent and should be available in |
1087 | the target_arch transfer vector, if we ever have one... */ | |
1088 | ||
1089 | static int | |
fba45db2 | 1090 | es1800_insert_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c | 1091 | { |
c5aa993b | 1092 | int val; |
c906108c SS |
1093 | |
1094 | val = target_read_memory (addr, contents_cache, sizeof (es1800_break_insn)); | |
1095 | ||
1096 | if (val == 0) | |
1097 | { | |
1098 | val = target_write_memory (addr, es1800_break_insn, | |
1099 | sizeof (es1800_break_insn)); | |
1100 | } | |
1101 | ||
1102 | return (val); | |
1103 | } | |
1104 | ||
1105 | ||
1106 | /* Write back the stashed instruction | |
c5aa993b | 1107 | |
c906108c SS |
1108 | addr - is the target location in the target machine. |
1109 | contents_cache - is a pointer to memory allocated for saving the target contents. | |
c5aa993b JM |
1110 | It is guaranteed by the caller to be long enough to save sizeof |
1111 | BREAKPOINT bytes. */ | |
1112 | ||
c906108c | 1113 | static int |
fba45db2 | 1114 | es1800_remove_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c SS |
1115 | { |
1116 | ||
1117 | return (target_write_memory (addr, contents_cache, | |
1118 | sizeof (es1800_break_insn))); | |
1119 | } | |
1120 | ||
1121 | /* create_break_insn () | |
1122 | Primitive datastructures containing the es1800 breakpoint instruction */ | |
1123 | ||
1124 | static void | |
fba45db2 | 1125 | es1800_create_break_insn (char *ins, int vec) |
c906108c SS |
1126 | { |
1127 | if (vec == 15) | |
1128 | { | |
1129 | ins[0] = 0x4e; | |
1130 | ins[1] = 0x4f; | |
1131 | } | |
1132 | } | |
1133 | ||
1134 | ||
1135 | /* verify_break () | |
1136 | Seach for breakpoint routine in emulator memory. | |
1137 | returns non-zero on failure | |
1138 | vec - trap vector used for breakpoints */ | |
1139 | ||
1140 | static int | |
fba45db2 | 1141 | verify_break (int vec) |
c906108c SS |
1142 | { |
1143 | CORE_ADDR memaddress; | |
1144 | char buf[8]; | |
c5aa993b | 1145 | char *instr = "NqNqNqNs"; /* breakpoint routine */ |
c906108c SS |
1146 | int status; |
1147 | ||
1148 | get_break_addr (vec, &memaddress); | |
1149 | ||
1150 | if (memaddress) | |
1151 | { | |
c5aa993b | 1152 | status = target_read_memory (memaddress, buf, 8); |
c906108c SS |
1153 | if (status != 0) |
1154 | { | |
1155 | memory_error (status, memaddress); | |
1156 | } | |
494b7ec9 | 1157 | return (strcmp (instr, buf)); |
c906108c | 1158 | } |
c5aa993b | 1159 | return (-1); |
c906108c SS |
1160 | } |
1161 | ||
1162 | ||
1163 | /* get_break_addr () | |
8e1a459b | 1164 | find address of breakpoint routine |
c906108c | 1165 | vec - trap vector used for breakpoints |
c5aa993b | 1166 | addrp - store the address here */ |
c906108c SS |
1167 | |
1168 | static void | |
fba45db2 | 1169 | get_break_addr (int vec, CORE_ADDR *addrp) |
c906108c SS |
1170 | { |
1171 | CORE_ADDR memaddress = 0; | |
1172 | int status; | |
1173 | int k; | |
1174 | char buf[PBUFSIZ]; | |
1175 | char base_addr[4]; | |
1176 | char *p; | |
1177 | ||
1178 | if (m68020) | |
1179 | { | |
1180 | send_with_reply ("VBR ", buf, sizeof (buf)); | |
1181 | p = buf; | |
1182 | for (k = 0; k < 4; k++) | |
1183 | { | |
c5aa993b | 1184 | if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0)) |
c906108c SS |
1185 | { |
1186 | error ("Emulator reply is too short: %s", buf); | |
1187 | } | |
c5aa993b | 1188 | base_addr[k] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]); |
c906108c SS |
1189 | } |
1190 | /* base addr of exception vector table */ | |
1191 | memaddress = *((CORE_ADDR *) base_addr); | |
1192 | } | |
1193 | ||
c5aa993b JM |
1194 | memaddress += (vec + 32) * 4; /* address of trap vector */ |
1195 | status = target_read_memory (memaddress, (char *) addrp, 4); | |
1196 | if (status != 0) | |
1197 | { | |
1198 | memory_error (status, memaddress); | |
1199 | } | |
c906108c SS |
1200 | } |
1201 | ||
1202 | ||
1203 | /* Kill an inferior process */ | |
1204 | ||
1205 | static void | |
fba45db2 | 1206 | es1800_kill (void) |
c906108c SS |
1207 | { |
1208 | if (inferior_pid != 0) | |
1209 | { | |
1210 | inferior_pid = 0; | |
1211 | es1800_mourn_inferior (); | |
1212 | } | |
1213 | } | |
1214 | ||
1215 | ||
1216 | /* Load a file to the ES1800 emulator. | |
1217 | Converts the file from a.out format into Extended Tekhex format | |
1218 | before the file is loaded. | |
1219 | Also loads the trap routine, and sets the ES1800 breakpoint on it | |
1220 | filename - the a.out to be loaded | |
1221 | from_tty - says whether to be verbose or not | |
c5aa993b JM |
1222 | FIXME Uses emulator overlay memory for trap routine */ |
1223 | ||
c906108c | 1224 | static void |
fba45db2 | 1225 | es1800_load (char *filename, int from_tty) |
c906108c SS |
1226 | { |
1227 | ||
1228 | FILE *instream; | |
1229 | char loadname[15]; | |
1230 | char buf[160]; | |
1231 | struct cleanup *old_chain; | |
1232 | int es1800_load_format = 5; | |
1233 | ||
c5aa993b | 1234 | if (es1800_desc == NULL) |
c906108c SS |
1235 | { |
1236 | printf ("No emulator attached, type emulator-command first\n"); | |
1237 | return; | |
1238 | } | |
1239 | ||
1240 | filename = tilde_expand (filename); | |
b8c9b27d | 1241 | make_cleanup (xfree, filename); |
c906108c SS |
1242 | |
1243 | switch (es1800_load_format) | |
1244 | { | |
c5aa993b JM |
1245 | case 2: /* Extended Tekhex */ |
1246 | if (from_tty) | |
1247 | { | |
1248 | printf ("Converting \"%s\" to Extended Tekhex Format\n", filename); | |
1249 | } | |
1250 | sprintf (buf, "tekhex %s", filename); | |
1251 | system (buf); | |
1252 | sprintf (loadname, "out.hex"); | |
1253 | break; | |
1254 | ||
1255 | case 5: /* Motorola S-rec */ | |
1256 | if (from_tty) | |
1257 | { | |
1258 | printf ("Converting \"%s\" to Motorola S-record format\n", | |
1259 | filename); | |
1260 | } | |
1261 | /* in the future the source code in copy (part of binutils-1.93) will | |
1262 | be included in this file */ | |
1263 | sprintf (buf, | |
1264 | "copy -s \"a.out-sunos-big\" -d \"srec\" %s /tmp/out.hex", | |
1265 | filename); | |
1266 | system (buf); | |
1267 | sprintf (loadname, "/tmp/out.hex"); | |
1268 | break; | |
1269 | ||
1270 | default: | |
1271 | error ("Downloading format not defined\n"); | |
1272 | } | |
1273 | ||
c906108c SS |
1274 | breakpoint_init_inferior (); |
1275 | inferior_pid = 0; | |
1276 | if (from_tty) | |
1277 | { | |
c5aa993b | 1278 | printf ("Downloading \"%s\" to the ES 1800\n", filename); |
c906108c SS |
1279 | } |
1280 | if ((instream = fopen (loadname, "r")) == NULL) | |
1281 | { | |
1282 | perror_with_name ("fopen:"); | |
1283 | } | |
1284 | ||
1285 | old_chain = make_cleanup (fclose, instream); | |
1286 | immediate_quit++; | |
1287 | ||
1288 | es1800_reset (0); | |
1289 | ||
1290 | download (instream, from_tty, es1800_load_format); | |
1291 | ||
1292 | /* if breakpoint routine is not present anymore we have to check | |
1293 | whether to download a new breakpoint routine or not */ | |
1294 | ||
1295 | if ((verify_break (es1800_break_vec) != 0) | |
1296 | && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? ")) | |
1297 | { | |
1298 | char buf[128]; | |
1299 | printf ("Using break vector 0x%x\n", es1800_break_vec); | |
1300 | sprintf (buf, "0x%x ", es1800_break_vec); | |
1301 | printf ("Give the start address of the breakpoint routine: "); | |
1302 | fgets (buf + strlen (buf), sizeof (buf) - strlen (buf), stdin); | |
1303 | es1800_init_break (buf, 0); | |
1304 | } | |
1305 | ||
1306 | do_cleanups (old_chain); | |
1307 | expect_prompt (); | |
c5aa993b | 1308 | readchar (); /* FIXME I am getting a ^G = 7 after the prompt */ |
c906108c SS |
1309 | printf ("\n"); |
1310 | ||
1311 | if (fclose (instream) == EOF) | |
1312 | { | |
1313 | ; | |
1314 | } | |
1315 | ||
1316 | if (es1800_load_format != 2) | |
1317 | { | |
1318 | sprintf (buf, "/usr/bin/rm %s", loadname); | |
1319 | system (buf); | |
1320 | } | |
1321 | ||
1adeb98a | 1322 | symbol_file_add_main (filename, from_tty); /* reading symbol table */ |
c906108c SS |
1323 | immediate_quit--; |
1324 | } | |
1325 | ||
1326 | #if 0 | |
1327 | ||
1328 | #define NUMCPYBYTES 20 | |
1329 | ||
1330 | static void | |
fba45db2 | 1331 | bfd_copy (bfd *from_bfd, bfd *to_bfd) |
c906108c SS |
1332 | { |
1333 | asection *p, *new; | |
1334 | int i; | |
1335 | char buf[NUMCPYBYTES]; | |
1336 | ||
1337 | for (p = from_bfd->sections; p != NULL; p = p->next) | |
1338 | { | |
1339 | printf (" Copying section %s. Size = %x.\n", p->name, p->_cooked_size); | |
1340 | printf (" vma = %x, offset = %x, output_sec = %x\n", | |
1341 | p->vma, p->output_offset, p->output_section); | |
1342 | new = bfd_make_section (to_bfd, p->name); | |
1343 | if (p->_cooked_size && | |
1344 | !bfd_set_section_size (to_bfd, new, p->_cooked_size)) | |
1345 | { | |
1346 | error ("Wrong BFD size!\n"); | |
1347 | } | |
1348 | if (!bfd_set_section_flags (to_bfd, new, p->flags)) | |
1349 | { | |
1350 | error ("bfd_set_section_flags"); | |
1351 | } | |
1352 | new->vma = p->vma; | |
c5aa993b JM |
1353 | |
1354 | for (i = 0; (i + NUMCPYBYTES) < p->_cooked_size; i += NUMCPYBYTES) | |
c906108c SS |
1355 | { |
1356 | if (!bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i, | |
c5aa993b | 1357 | (bfd_size_type) NUMCPYBYTES)) |
c906108c SS |
1358 | { |
1359 | error ("bfd_get_section_contents\n"); | |
1360 | } | |
c5aa993b JM |
1361 | if (!bfd_set_section_contents (to_bfd, new, (PTR) buf, (file_ptr) i, |
1362 | (bfd_size_type) NUMCPYBYTES)) | |
1363 | { | |
1364 | error ("bfd_set_section_contents\n"); | |
1365 | } | |
1366 | } | |
c906108c SS |
1367 | bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i, |
1368 | (bfd_size_type) (p->_cooked_size - i)); | |
c5aa993b | 1369 | bfd_set_section_contents (to_bfd, new, (PTR) buf, (file_ptr) i, |
c906108c SS |
1370 | (bfd_size_type) (p->_cooked_size - i)); |
1371 | } | |
1372 | } | |
1373 | ||
1374 | #endif | |
1375 | ||
1376 | /* Start an process on the es1800 and set inferior_pid to the new | |
1377 | process' pid. | |
1378 | execfile - the file to run | |
1379 | args - arguments passed to the program | |
c5aa993b | 1380 | env - the environment vector to pass */ |
c906108c SS |
1381 | |
1382 | static void | |
fba45db2 | 1383 | es1800_create_inferior (char *execfile, char *args, char **env) |
c906108c SS |
1384 | { |
1385 | int entry_pt; | |
1386 | int pid; | |
1387 | #if 0 | |
1388 | struct expression *expr; | |
1389 | register struct cleanup *old_chain = 0; | |
1390 | register value val; | |
1391 | #endif | |
1392 | ||
1393 | if (args && *args) | |
1394 | { | |
1395 | error ("Can't pass arguments to remote ES1800 process"); | |
1396 | } | |
1397 | ||
1398 | #if 0 | |
1399 | if (query ("Use 'start' as entry point? ")) | |
1400 | { | |
1401 | expr = parse_c_expression ("start"); | |
1402 | old_chain = make_cleanup (free_current_contents, &expr); | |
1403 | val = evaluate_expression (expr); | |
1404 | entry_pt = (val->location).address; | |
1405 | } | |
1406 | else | |
1407 | { | |
1408 | printf ("Enter the program's entry point (in hexadecimal): "); | |
1409 | scanf ("%x", &entry_pt); | |
1410 | } | |
1411 | #endif | |
1412 | ||
1413 | if (execfile == 0 || exec_bfd == 0) | |
1414 | { | |
1415 | error ("No executable file specified"); | |
1416 | } | |
1417 | ||
1418 | entry_pt = (int) bfd_get_start_address (exec_bfd); | |
1419 | ||
1420 | pid = 42; | |
1421 | ||
1422 | /* Now that we have a child process, make it our target. */ | |
1423 | ||
1424 | push_target (&es1800_child_ops); | |
1425 | ||
1426 | /* The "process" (board) is already stopped awaiting our commands, and | |
1427 | the program is already downloaded. We just set its PC and go. */ | |
1428 | ||
1429 | inferior_pid = pid; /* Needed for wait_for_inferior below */ | |
1430 | ||
1431 | clear_proceed_status (); | |
1432 | ||
1433 | /* Tell wait_for_inferior that we've started a new process. */ | |
1434 | ||
1435 | init_wait_for_inferior (); | |
1436 | ||
1437 | /* Set up the "saved terminal modes" of the inferior | |
1438 | based on what modes we are starting it with. */ | |
1439 | ||
1440 | target_terminal_init (); | |
1441 | ||
1442 | /* Install inferior's terminal modes. */ | |
1443 | ||
1444 | target_terminal_inferior (); | |
1445 | ||
1446 | /* remote_start (args); */ | |
1447 | /* trap_expected = 0; */ | |
1448 | /* insert_step_breakpoint (); FIXME, do we need this? */ | |
1449 | ||
1450 | /* Let 'er rip... */ | |
1451 | proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0); | |
1452 | ||
1453 | } | |
1454 | ||
1455 | ||
1456 | /* The process has died, clean up. */ | |
1457 | ||
1458 | static void | |
fba45db2 | 1459 | es1800_mourn_inferior (void) |
c906108c SS |
1460 | { |
1461 | remove_breakpoints (); | |
1462 | unpush_target (&es1800_child_ops); | |
1463 | generic_mourn_inferior (); /* Do all the proper things now */ | |
1464 | } | |
1465 | ||
1466 | /* ES1800-protocol specific routines */ | |
1467 | ||
1468 | /* Keep discarding input from the remote system, until STRING is found. | |
1469 | Let the user break out immediately. | |
1470 | string - the string to expect | |
1471 | nowait - break out if string not the emulator's first respond otherwise | |
c5aa993b JM |
1472 | read until string is found (== 0) */ |
1473 | ||
c906108c | 1474 | static void |
fba45db2 | 1475 | expect (char *string, int nowait) |
c906108c SS |
1476 | { |
1477 | char c; | |
1478 | char *p = string; | |
1479 | ||
1480 | immediate_quit++; | |
1481 | while (1) | |
1482 | { | |
1483 | c = readchar (); | |
1484 | if (isalpha (c)) | |
1485 | { | |
1486 | c = toupper (c); | |
1487 | } | |
1488 | if (c == toupper (*p)) | |
1489 | { | |
1490 | p++; | |
1491 | if (*p == '\0') | |
1492 | { | |
1493 | immediate_quit--; | |
1494 | return; | |
1495 | } | |
1496 | } | |
1497 | else if (!nowait) | |
1498 | { | |
1499 | p = string; | |
1500 | } | |
1501 | else | |
1502 | { | |
c5aa993b | 1503 | printf ("\'%s\' expected\n", string); |
c906108c | 1504 | printf ("char %d is %d", p - string, c); |
c5aa993b | 1505 | error ("\n"); |
c906108c SS |
1506 | } |
1507 | } | |
1508 | } | |
1509 | ||
1510 | /* Keep discarding input until we see the prompt. */ | |
1511 | ||
1512 | static void | |
fba45db2 | 1513 | expect_prompt (void) |
c906108c SS |
1514 | { |
1515 | expect (">", 0); | |
1516 | } | |
1517 | ||
1518 | ||
1519 | /* Read one character */ | |
1520 | ||
1521 | #ifdef DEBUG_STDIN | |
1522 | ||
1523 | /* read from stdin */ | |
1524 | ||
1525 | static int | |
fba45db2 | 1526 | readchar (void) |
c906108c SS |
1527 | { |
1528 | char buf[1]; | |
1529 | ||
1530 | buf[0] = '\0'; | |
1531 | printf ("readchar, give one character\n"); | |
1532 | read (0, buf, 1); | |
1533 | ||
1534 | #if defined (LOG_FILE) | |
1535 | putc (buf[0] & 0x7f, log_file); | |
1536 | #endif | |
1537 | ||
1538 | return (buf[0] & 0x7f); | |
1539 | } | |
1540 | ||
c5aa993b | 1541 | #else /* !DEBUG_STDIN */ |
c906108c SS |
1542 | |
1543 | /* Read a character from the remote system, doing all the fancy | |
1544 | timeout stuff. */ | |
1545 | ||
1546 | static int | |
fba45db2 | 1547 | readchar (void) |
c906108c SS |
1548 | { |
1549 | int ch; | |
1550 | ||
1551 | ch = SERIAL_READCHAR (es1800_desc, timeout); | |
1552 | ||
1553 | /* FIXME: doing an error() here will probably cause trouble, at least if from | |
1554 | es1800_wait. */ | |
1555 | if (ch == SERIAL_TIMEOUT) | |
1556 | error ("Timeout reading from remote system."); | |
1557 | else if (ch == SERIAL_ERROR) | |
1558 | perror_with_name ("remote read"); | |
1559 | ||
1560 | #if defined (LOG_FILE) | |
1561 | putc (ch & 0x7f, log_file); | |
1562 | fflush (log_file); | |
1563 | #endif | |
1564 | ||
1565 | return (ch); | |
1566 | } | |
1567 | ||
c5aa993b | 1568 | #endif /* DEBUG_STDIN */ |
c906108c SS |
1569 | |
1570 | ||
1571 | /* Send a command to the emulator and save the reply. | |
1572 | Report an error if we get an error reply. | |
1573 | string - the es1800 command | |
1574 | buf - containing the emulator reply on return | |
1575 | len - size of buf */ | |
1576 | ||
1577 | static void | |
fba45db2 | 1578 | send_with_reply (char *string, char *buf, int len) |
c906108c SS |
1579 | { |
1580 | send (string); | |
1581 | SERIAL_WRITE (es1800_desc, "\r", 1); | |
1582 | ||
1583 | #ifndef DEBUG_STDIN | |
1584 | expect (string, 1); | |
1585 | expect ("\r\n", 0); | |
1586 | #endif | |
1587 | ||
1588 | getmessage (buf, len); | |
1589 | } | |
1590 | ||
1591 | ||
1592 | /* Send the command in STR to the emulator adding \r. check | |
1593 | the echo for consistency. | |
1594 | string - the es1800 command */ | |
c5aa993b | 1595 | |
c906108c | 1596 | static void |
fba45db2 | 1597 | send_command (char *string) |
c906108c SS |
1598 | { |
1599 | send (string); | |
1600 | SERIAL_WRITE (es1800_desc, "\r", 1); | |
1601 | ||
1602 | #ifndef DEBUG_STDIN | |
1603 | expect (string, 0); | |
1604 | expect_prompt (); | |
1605 | #endif | |
1606 | ||
1607 | } | |
1608 | ||
1609 | /* Send a string | |
1610 | string - the es1800 command */ | |
1611 | ||
1612 | static void | |
fba45db2 | 1613 | send (char *string) |
c906108c | 1614 | { |
c5aa993b | 1615 | if (kiodebug) |
c906108c SS |
1616 | { |
1617 | fprintf (stderr, "Sending: %s\n", string); | |
1618 | } | |
1619 | SERIAL_WRITE (es1800_desc, string, strlen (string)); | |
1620 | } | |
1621 | ||
1622 | ||
1623 | /* Read a message from the emulator and store it in BUF. | |
1624 | buf - containing the emulator reply on return | |
1625 | len - size of buf */ | |
c5aa993b | 1626 | |
c906108c | 1627 | static void |
fba45db2 | 1628 | getmessage (char *buf, int len) |
c906108c SS |
1629 | { |
1630 | char *bp; | |
1631 | int c; | |
1632 | int prompt_found = 0; | |
1633 | extern kiodebug; | |
1634 | ||
1635 | #if defined (LOG_FILE) | |
1636 | /* This is a convenient place to do this. The idea is to do it often | |
1637 | enough that we never lose much data if we terminate abnormally. */ | |
1638 | fflush (log_file); | |
1639 | #endif | |
1640 | ||
1641 | bp = buf; | |
1642 | c = readchar (); | |
1643 | do | |
1644 | { | |
c5aa993b | 1645 | if (c) |
c906108c | 1646 | { |
c5aa993b | 1647 | if (len-- < 2) /* char and terminaling NULL */ |
c906108c SS |
1648 | { |
1649 | error ("input buffer overrun\n"); | |
1650 | } | |
1651 | *bp++ = c; | |
1652 | } | |
1653 | c = readchar (); | |
1654 | if ((c == '>') && (*(bp - 1) == ' ')) | |
1655 | { | |
1656 | prompt_found = 1; | |
1657 | } | |
1658 | } | |
1659 | while (!prompt_found); | |
1660 | *bp = 0; | |
c5aa993b | 1661 | |
c906108c SS |
1662 | if (kiodebug) |
1663 | { | |
c5aa993b | 1664 | fprintf (stderr, "message received :%s\n", buf); |
c906108c SS |
1665 | } |
1666 | } | |
1667 | ||
1668 | static void | |
fba45db2 | 1669 | download (FILE *instream, int from_tty, int format) |
c906108c SS |
1670 | { |
1671 | char c; | |
1672 | char buf[160]; | |
1673 | int i = 0; | |
1674 | ||
c5aa993b JM |
1675 | send_command ("SET #2,$1A"); /* reset char = ^Z */ |
1676 | send_command ("SET #3,$11,$13"); /* XON XOFF */ | |
c906108c SS |
1677 | if (format == 2) |
1678 | { | |
1679 | send_command ("SET #26,#2"); | |
1680 | } | |
1681 | else | |
1682 | { | |
c5aa993b | 1683 | send_command ("SET #26,#5"); /* Format=Extended Tekhex */ |
c906108c SS |
1684 | } |
1685 | send_command ("DFB = $10"); | |
1686 | send_command ("PUR"); | |
1687 | send_command ("CES"); | |
1688 | send ("DNL\r"); | |
1689 | expect ("DNL", 1); | |
1690 | if (from_tty) | |
1691 | { | |
1692 | printf (" 0 records loaded...\r"); | |
1693 | } | |
1694 | while (fgets (buf, 160, instream)) | |
c5aa993b JM |
1695 | { |
1696 | send (buf); | |
1697 | if (from_tty) | |
1698 | { | |
1699 | printf ("%5d\b\b\b\b\b", ++i); | |
1700 | fflush (stdout); | |
1701 | } | |
1702 | if ((c = readchar ()) != 006) | |
1703 | { | |
1704 | error ("expected ACK"); | |
1705 | } | |
1706 | } | |
c906108c SS |
1707 | if (from_tty) |
1708 | { | |
1709 | printf ("- All"); | |
1710 | } | |
1711 | } | |
1712 | ||
1713 | /* Additional commands */ | |
1714 | ||
1715 | #if defined (TIOCGETP) && defined (FNDELAY) && defined (EWOULDBLOCK) | |
1716 | #define PROVIDE_TRANSPARENT | |
1717 | #endif | |
1718 | ||
1719 | #ifdef PROVIDE_TRANSPARENT | |
1720 | /* Talk directly to the emulator | |
1721 | FIXME, uses busy wait, and is SUNOS (or at least BSD) specific */ | |
1722 | ||
c5aa993b JM |
1723 | /*ARGSUSED */ |
1724 | static void | |
fba45db2 | 1725 | es1800_transparent (char *args, int from_tty) |
c906108c SS |
1726 | { |
1727 | int console; | |
1728 | struct sgttyb modebl; | |
1729 | int fcflag; | |
1730 | int cc; | |
1731 | struct sgttyb console_mode_save; | |
1732 | int console_fc_save; | |
1733 | int es1800_fc_save; | |
1734 | int inputcnt = 80; | |
1735 | char inputbuf[80]; | |
1736 | int consolecnt = 0; | |
1737 | char consolebuf[80]; | |
1738 | int es1800_cnt = 0; | |
1739 | char es1800_buf[80]; | |
1740 | int i; | |
1741 | ||
1742 | dont_repeat (); | |
c5aa993b | 1743 | if (es1800_desc == NULL) |
c906108c SS |
1744 | { |
1745 | printf ("No emulator attached, type emulator-command first\n"); | |
1746 | return; | |
1747 | } | |
1748 | ||
1749 | printf ("\n"); | |
1750 | printf ("You are now communicating directly with the ES 1800 emulator.\n"); | |
1751 | printf ("To leave this mode (transparent mode), press ^E.\n"); | |
1752 | printf ("\n"); | |
1753 | printf (" >"); | |
1754 | fflush (stdout); | |
1755 | ||
c5aa993b | 1756 | if ((console = open ("/dev/tty", O_RDWR)) == -1) |
c906108c SS |
1757 | { |
1758 | perror_with_name ("/dev/tty:"); | |
1759 | } | |
1760 | ||
1761 | if ((fcflag = fcntl (console, F_GETFL, 0)) == -1) | |
1762 | { | |
1763 | perror_with_name ("fcntl console"); | |
1764 | } | |
1765 | ||
1766 | console_fc_save = fcflag; | |
1767 | fcflag = fcflag | FNDELAY; | |
1768 | ||
1769 | if (fcntl (console, F_SETFL, fcflag) == -1) | |
1770 | { | |
1771 | perror_with_name ("fcntl console"); | |
1772 | } | |
1773 | ||
1774 | if (ioctl (console, TIOCGETP, &modebl)) | |
1775 | { | |
1776 | perror_with_name ("ioctl console"); | |
1777 | } | |
1778 | ||
1779 | console_mode_save = modebl; | |
c5aa993b | 1780 | modebl.sg_flags = RAW; |
c906108c SS |
1781 | |
1782 | if (ioctl (console, TIOCSETP, &modebl)) | |
1783 | { | |
1784 | perror_with_name ("ioctl console"); | |
1785 | } | |
1786 | ||
c2c6d25f | 1787 | if ((fcflag = fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_GETFL, 0)) == -1) |
c906108c SS |
1788 | { |
1789 | perror_with_name ("fcntl serial"); | |
1790 | } | |
1791 | ||
1792 | es1800_fc_save = fcflag; | |
1793 | fcflag = fcflag | FNDELAY; | |
1794 | ||
c2c6d25f | 1795 | if (fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_SETFL, fcflag) == -1) |
c906108c SS |
1796 | { |
1797 | perror_with_name ("fcntl serial"); | |
1798 | } | |
1799 | ||
1800 | while (1) | |
c5aa993b | 1801 | { |
c906108c SS |
1802 | cc = read (console, inputbuf, inputcnt); |
1803 | if (cc != -1) | |
1804 | { | |
1805 | if ((*inputbuf & 0x7f) == 0x05) | |
1806 | { | |
1807 | break; | |
1808 | } | |
c5aa993b | 1809 | for (i = 0; i < cc;) |
c906108c SS |
1810 | { |
1811 | es1800_buf[es1800_cnt++] = inputbuf[i++]; | |
1812 | } | |
1813 | if ((cc = SERIAL_WRITE (es1800_desc, es1800_buf, es1800_cnt)) == -1) | |
1814 | { | |
1815 | perror_with_name ("FEL! write:"); | |
1816 | } | |
1817 | es1800_cnt -= cc; | |
c5aa993b | 1818 | if (es1800_cnt && cc) |
c906108c SS |
1819 | { |
1820 | for (i = 0; i < es1800_cnt; i++) | |
1821 | { | |
c5aa993b | 1822 | es1800_buf[i] = es1800_buf[cc + i]; |
c906108c SS |
1823 | } |
1824 | } | |
1825 | } | |
1826 | else if (errno != EWOULDBLOCK) | |
1827 | { | |
1828 | perror_with_name ("FEL! read:"); | |
1829 | } | |
c5aa993b | 1830 | |
c2c6d25f | 1831 | cc = read (DEPRECATED_SERIAL_FD (es1800_desc), inputbuf, inputcnt); |
c906108c SS |
1832 | if (cc != -1) |
1833 | { | |
c5aa993b | 1834 | for (i = 0; i < cc;) |
c906108c SS |
1835 | { |
1836 | consolebuf[consolecnt++] = inputbuf[i++]; | |
1837 | } | |
c5aa993b | 1838 | if ((cc = write (console, consolebuf, consolecnt)) == -1) |
c906108c SS |
1839 | { |
1840 | perror_with_name ("FEL! write:"); | |
1841 | } | |
1842 | consolecnt -= cc; | |
c5aa993b | 1843 | if (consolecnt && cc) |
c906108c SS |
1844 | { |
1845 | for (i = 0; i < consolecnt; i++) | |
1846 | { | |
c5aa993b | 1847 | consolebuf[i] = consolebuf[cc + i]; |
c906108c SS |
1848 | } |
1849 | } | |
1850 | } | |
1851 | else if (errno != EWOULDBLOCK) | |
1852 | { | |
1853 | perror_with_name ("FEL! read:"); | |
1854 | } | |
1855 | } | |
1856 | ||
1857 | console_fc_save = console_fc_save & !FNDELAY; | |
1858 | if (fcntl (console, F_SETFL, console_fc_save) == -1) | |
1859 | { | |
1860 | perror_with_name ("FEL! fcntl"); | |
1861 | } | |
1862 | ||
1863 | if (ioctl (console, TIOCSETP, &console_mode_save)) | |
1864 | { | |
1865 | perror_with_name ("FEL! ioctl"); | |
1866 | } | |
1867 | ||
1868 | close (console); | |
1869 | ||
c2c6d25f | 1870 | if (fcntl (DEPRECATED_SERIAL_FD (es1800_desc), F_SETFL, es1800_fc_save) == -1) |
c906108c SS |
1871 | { |
1872 | perror_with_name ("FEL! fcntl"); | |
1873 | } | |
1874 | ||
1875 | printf ("\n"); | |
1876 | ||
1877 | } | |
1878 | #endif /* PROVIDE_TRANSPARENT */ | |
1879 | ||
1880 | static void | |
fba45db2 | 1881 | es1800_init_break (char *args, int from_tty) |
c906108c SS |
1882 | { |
1883 | CORE_ADDR memaddress = 0; | |
1884 | char buf[PBUFSIZ]; | |
1885 | char base_addr[4]; | |
1886 | char *space_index; | |
1887 | char *p; | |
1888 | int k; | |
1889 | ||
1890 | if (args == NULL) | |
1891 | { | |
1892 | error_no_arg ("a trap vector"); | |
1893 | } | |
1894 | ||
1895 | if (!(space_index = strchr (args, ' '))) | |
1896 | { | |
1897 | error ("Two arguments needed (trap vector and address of break routine).\n"); | |
1898 | } | |
1899 | ||
1900 | *space_index = '\0'; | |
1901 | ||
1902 | es1800_break_vec = strtol (args, (char **) NULL, 0); | |
1903 | es1800_break_address = parse_and_eval_address (space_index + 1); | |
1904 | ||
1905 | es1800_create_break_insn (es1800_break_insn, es1800_break_vec); | |
1906 | ||
1907 | if (m68020) | |
1908 | { | |
1909 | send_with_reply ("VBR ", buf, sizeof (buf)); | |
1910 | p = buf; | |
1911 | for (k = 0; k < 4; k++) | |
1912 | { | |
c5aa993b | 1913 | if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0)) |
c906108c SS |
1914 | { |
1915 | error ("Emulator reply is too short: %s", buf); | |
1916 | } | |
c5aa993b | 1917 | base_addr[k] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]); |
c906108c SS |
1918 | } |
1919 | /* base addr of exception vector table */ | |
c5aa993b | 1920 | memaddress = *((CORE_ADDR *) base_addr); |
c906108c SS |
1921 | } |
1922 | ||
c5aa993b | 1923 | memaddress += (es1800_break_vec + 32) * 4; /* address of trap vector */ |
c906108c SS |
1924 | |
1925 | sprintf (buf, "@.L%lx=$%lx", memaddress, es1800_break_address); | |
c5aa993b JM |
1926 | send_command (buf); /* set the address of the break routine in the */ |
1927 | /* trap vector */ | |
1928 | ||
1929 | sprintf (buf, "@.L%lx=$4E714E71", es1800_break_address); /* NOP; NOP */ | |
c906108c | 1930 | send_command (buf); |
c5aa993b | 1931 | sprintf (buf, "@.L%lx=$4E714E73", es1800_break_address + 4); /* NOP; RTE */ |
c906108c | 1932 | send_command (buf); |
c5aa993b | 1933 | |
c906108c SS |
1934 | sprintf (buf, "AC2=$%lx", es1800_break_address + 4); |
1935 | /* breakpoint at es1800-break_address */ | |
1936 | send_command (buf); | |
c5aa993b | 1937 | send_command ("WHEN AC2 THEN BRK"); /* ie in exception routine */ |
c906108c SS |
1938 | |
1939 | if (from_tty) | |
1940 | { | |
1941 | printf ("Breakpoint (trap $%x) routine at address: %lx\n", | |
1942 | es1800_break_vec, es1800_break_address); | |
1943 | } | |
c5aa993b | 1944 | } |
c906108c SS |
1945 | |
1946 | static void | |
fba45db2 | 1947 | es1800_child_open (char *arg, int from_tty) |
c906108c SS |
1948 | { |
1949 | error ("Use the \"run\" command to start a child process."); | |
1950 | } | |
1951 | ||
1952 | static void | |
fba45db2 | 1953 | es1800_child_detach (char *args, int from_tty) |
c906108c SS |
1954 | { |
1955 | if (args) | |
1956 | { | |
1957 | error ("Argument given to \"detach\" when remotely debugging."); | |
1958 | } | |
c5aa993b | 1959 | |
c906108c SS |
1960 | pop_target (); |
1961 | if (from_tty) | |
1962 | { | |
1963 | printf ("Ending debugging the process %d.\n", inferior_pid); | |
1964 | } | |
1965 | } | |
1966 | ||
1967 | ||
1968 | /* Define the target subroutine names */ | |
1969 | ||
c5aa993b | 1970 | struct target_ops es1800_ops; |
c906108c | 1971 | |
c5aa993b JM |
1972 | static void |
1973 | init_es1800_ops (void) | |
c906108c | 1974 | { |
c5aa993b JM |
1975 | es1800_ops.to_shortname = "es1800"; |
1976 | es1800_ops.to_longname = "Remote serial target in ES1800-emulator protocol"; | |
1977 | es1800_ops.to_doc = "Remote debugging on the es1800 emulator via a serial line.\n\ | |
1978 | Specify the serial device it is connected to (e.g. /dev/ttya)."; | |
1979 | es1800_ops.to_open = es1800_open; | |
1980 | es1800_ops.to_close = es1800_close; | |
1981 | es1800_ops.to_attach = es1800_attach; | |
1982 | es1800_ops.to_post_attach = NULL; | |
c906108c | 1983 | es1800_ops.to_require_attach = NULL; |
c5aa993b | 1984 | es1800_ops.to_detach = es1800_detach; |
c906108c | 1985 | es1800_ops.to_require_detach = NULL; |
c5aa993b JM |
1986 | es1800_ops.to_resume = es1800_resume; |
1987 | es1800_ops.to_wait = NULL; | |
1988 | es1800_ops.to_post_wait = NULL; | |
1989 | es1800_ops.to_fetch_registers = NULL; | |
1990 | es1800_ops.to_store_registers = NULL; | |
1991 | es1800_ops.to_prepare_to_store = es1800_prepare_to_store; | |
1992 | es1800_ops.to_xfer_memory = es1800_xfer_inferior_memory; | |
1993 | es1800_ops.to_files_info = es1800_files_info; | |
1994 | es1800_ops.to_insert_breakpoint = es1800_insert_breakpoint; | |
1995 | es1800_ops.to_remove_breakpoint = es1800_remove_breakpoint; | |
1996 | es1800_ops.to_terminal_init = NULL; | |
1997 | es1800_ops.to_terminal_inferior = NULL; | |
1998 | es1800_ops.to_terminal_ours_for_output = NULL; | |
1999 | es1800_ops.to_terminal_ours = NULL; | |
2000 | es1800_ops.to_terminal_info = NULL; | |
2001 | es1800_ops.to_kill = NULL; | |
2002 | es1800_ops.to_load = es1800_load; | |
2003 | es1800_ops.to_lookup_symbol = NULL; | |
2004 | es1800_ops.to_create_inferior = es1800_create_inferior; | |
c906108c SS |
2005 | es1800_ops.to_post_startup_inferior = NULL; |
2006 | es1800_ops.to_acknowledge_created_inferior = NULL; | |
c5aa993b | 2007 | es1800_ops.to_clone_and_follow_inferior = NULL; |
c906108c SS |
2008 | es1800_ops.to_post_follow_inferior_by_clone = NULL; |
2009 | es1800_ops.to_insert_fork_catchpoint = NULL; | |
2010 | es1800_ops.to_remove_fork_catchpoint = NULL; | |
2011 | es1800_ops.to_insert_vfork_catchpoint = NULL; | |
c5aa993b | 2012 | es1800_ops.to_remove_vfork_catchpoint = NULL; |
c906108c | 2013 | es1800_ops.to_has_forked = NULL; |
c5aa993b JM |
2014 | es1800_ops.to_has_vforked = NULL; |
2015 | es1800_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
c906108c SS |
2016 | es1800_ops.to_post_follow_vfork = NULL; |
2017 | es1800_ops.to_insert_exec_catchpoint = NULL; | |
2018 | es1800_ops.to_remove_exec_catchpoint = NULL; | |
2019 | es1800_ops.to_has_execd = NULL; | |
2020 | es1800_ops.to_reported_exec_events_per_exec_call = NULL; | |
2021 | es1800_ops.to_has_exited = NULL; | |
c5aa993b JM |
2022 | es1800_ops.to_mourn_inferior = NULL; |
2023 | es1800_ops.to_can_run = 0; | |
2024 | es1800_ops.to_notice_signals = 0; | |
2025 | es1800_ops.to_thread_alive = 0; | |
2026 | es1800_ops.to_stop = 0; | |
c906108c | 2027 | es1800_ops.to_pid_to_exec_file = NULL; |
c5aa993b JM |
2028 | es1800_ops.to_core_file_to_sym_file = NULL; |
2029 | es1800_ops.to_stratum = core_stratum; | |
2030 | es1800_ops.DONT_USE = 0; | |
2031 | es1800_ops.to_has_all_memory = 0; | |
2032 | es1800_ops.to_has_memory = 1; | |
2033 | es1800_ops.to_has_stack = 0; | |
2034 | es1800_ops.to_has_registers = 0; | |
2035 | es1800_ops.to_has_execution = 0; | |
2036 | es1800_ops.to_sections = NULL; | |
2037 | es1800_ops.to_sections_end = NULL; | |
2038 | es1800_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
2039 | } |
2040 | ||
2041 | /* Define the target subroutine names */ | |
2042 | ||
c5aa993b | 2043 | struct target_ops es1800_child_ops; |
c906108c | 2044 | |
c5aa993b JM |
2045 | static void |
2046 | init_es1800_child_ops (void) | |
c906108c | 2047 | { |
c5aa993b JM |
2048 | es1800_child_ops.to_shortname = "es1800_process"; |
2049 | es1800_child_ops.to_longname = "Remote serial target in ES1800-emulator protocol"; | |
2050 | es1800_child_ops.to_doc = "Remote debugging on the es1800 emulator via a serial line.\n\ | |
c906108c | 2051 | Specify the serial device it is connected to (e.g. /dev/ttya)."; |
c5aa993b JM |
2052 | es1800_child_ops.to_open = es1800_child_open; |
2053 | es1800_child_ops.to_close = NULL; | |
2054 | es1800_child_ops.to_attach = es1800_attach; | |
c906108c | 2055 | es1800_child_ops.to_post_attach = NULL; |
c5aa993b JM |
2056 | es1800_child_ops.to_require_attach = NULL; |
2057 | es1800_child_ops.to_detach = es1800_child_detach; | |
2058 | es1800_child_ops.to_require_detach = NULL; | |
2059 | es1800_child_ops.to_resume = es1800_resume; | |
2060 | es1800_child_ops.to_wait = es1800_wait; | |
2061 | es1800_child_ops.to_post_wait = NULL; | |
2062 | es1800_child_ops.to_fetch_registers = es1800_fetch_register; | |
2063 | es1800_child_ops.to_store_registers = es1800_store_register; | |
2064 | es1800_child_ops.to_prepare_to_store = es1800_prepare_to_store; | |
2065 | es1800_child_ops.to_xfer_memory = es1800_xfer_inferior_memory; | |
2066 | es1800_child_ops.to_files_info = es1800_files_info; | |
2067 | es1800_child_ops.to_insert_breakpoint = es1800_insert_breakpoint; | |
2068 | es1800_child_ops.to_remove_breakpoint = es1800_remove_breakpoint; | |
2069 | es1800_child_ops.to_terminal_init = NULL; | |
2070 | es1800_child_ops.to_terminal_inferior = NULL; | |
2071 | es1800_child_ops.to_terminal_ours_for_output = NULL; | |
2072 | es1800_child_ops.to_terminal_ours = NULL; | |
2073 | es1800_child_ops.to_terminal_info = NULL; | |
2074 | es1800_child_ops.to_kill = es1800_kill; | |
2075 | es1800_child_ops.to_load = es1800_load; | |
2076 | es1800_child_ops.to_lookup_symbol = NULL; | |
2077 | es1800_child_ops.to_create_inferior = es1800_create_inferior; | |
c906108c SS |
2078 | es1800_child_ops.to_post_startup_inferior = NULL; |
2079 | es1800_child_ops.to_acknowledge_created_inferior = NULL; | |
2080 | es1800_child_ops.to_clone_and_follow_inferior = NULL; | |
2081 | es1800_child_ops.to_post_follow_inferior_by_clone = NULL; | |
2082 | es1800_child_ops.to_insert_fork_catchpoint = NULL; | |
2083 | es1800_child_ops.to_remove_fork_catchpoint = NULL; | |
2084 | es1800_child_ops.to_insert_vfork_catchpoint = NULL; | |
c5aa993b | 2085 | es1800_child_ops.to_remove_vfork_catchpoint = NULL; |
c906108c | 2086 | es1800_child_ops.to_has_forked = NULL; |
c5aa993b | 2087 | es1800_child_ops.to_has_vforked = NULL; |
c906108c SS |
2088 | es1800_child_ops.to_can_follow_vfork_prior_to_exec = NULL; |
2089 | es1800_child_ops.to_post_follow_vfork = NULL; | |
2090 | es1800_child_ops.to_insert_exec_catchpoint = NULL; | |
2091 | es1800_child_ops.to_remove_exec_catchpoint = NULL; | |
2092 | es1800_child_ops.to_has_execd = NULL; | |
2093 | es1800_child_ops.to_reported_exec_events_per_exec_call = NULL; | |
2094 | es1800_child_ops.to_has_exited = NULL; | |
c5aa993b JM |
2095 | es1800_child_ops.to_mourn_inferior = es1800_mourn_inferior; |
2096 | es1800_child_ops.to_can_run = 0; | |
2097 | es1800_child_ops.to_notice_signals = 0; | |
2098 | es1800_child_ops.to_thread_alive = 0; | |
2099 | es1800_child_ops.to_stop = 0; | |
c906108c SS |
2100 | es1800_child_ops.to_pid_to_exec_file = NULL; |
2101 | es1800_child_ops.to_core_file_to_sym_file = NULL; | |
c5aa993b JM |
2102 | es1800_child_ops.to_stratum = process_stratum; |
2103 | es1800_child_ops.DONT_USE = 0; | |
2104 | es1800_child_ops.to_has_all_memory = 1; | |
2105 | es1800_child_ops.to_has_memory = 1; | |
2106 | es1800_child_ops.to_has_stack = 1; | |
2107 | es1800_child_ops.to_has_registers = 1; | |
2108 | es1800_child_ops.to_has_execution = 1; | |
2109 | es1800_child_ops.to_sections = NULL; | |
2110 | es1800_child_ops.to_sections_end = NULL; | |
2111 | es1800_child_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
2112 | } |
2113 | ||
2114 | void | |
fba45db2 | 2115 | _initialize_es1800 (void) |
c906108c | 2116 | { |
c5aa993b JM |
2117 | init_es1800_ops (); |
2118 | init_es1800_child_ops (); | |
c906108c SS |
2119 | add_target (&es1800_ops); |
2120 | add_target (&es1800_child_ops); | |
2121 | #ifdef PROVIDE_TRANSPARENT | |
2122 | add_com ("transparent", class_support, es1800_transparent, | |
2123 | "Start transparent communication with the ES 1800 emulator."); | |
2124 | #endif /* PROVIDE_TRANSPARENT */ | |
2125 | add_com ("init_break", class_support, es1800_init_break, | |
c5aa993b | 2126 | "Download break routine and initialize break facility on ES 1800"); |
c906108c | 2127 | } |