Commit | Line | Data |
---|---|---|
0e887539 SG |
1 | /* Target dependent code for the Fujitsu SPARClite for GDB, the GNU debugger. |
2 | Copyright 1994, 1995 Free Software Foundation, Inc. | |
b955f680 KH |
3 | |
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "gdbcore.h" | |
22 | #include "breakpoint.h" | |
0e887539 SG |
23 | #include "target.h" |
24 | #include "serial.h" | |
25 | #include <sys/types.h> | |
26 | #include <sys/time.h> | |
a76ef70a SG |
27 | #include <unistd.h> |
28 | #ifndef __GO32__ | |
0e887539 SG |
29 | #include <sys/socket.h> |
30 | #include <netinet/in.h> | |
31 | #include <netdb.h> | |
a76ef70a | 32 | #endif |
0e887539 SG |
33 | |
34 | extern struct target_ops sparclite_ops; /* Forward decl */ | |
35 | extern struct target_ops remote_ops; | |
36 | ||
37 | static char *remote_target_name = NULL; | |
38 | static serial_t remote_desc = NULL; | |
0e887539 | 39 | static int serial_flag; |
a76ef70a SG |
40 | #ifndef __GO32__ |
41 | static int udp_fd = -1; | |
42 | #endif | |
0e887539 SG |
43 | |
44 | static serial_t open_tty PARAMS ((char *name)); | |
45 | static int send_resp PARAMS ((serial_t desc, char c)); | |
46 | static void close_tty PARAMS ((int ignore)); | |
a76ef70a | 47 | #ifndef __GO32__ |
0e887539 SG |
48 | static int recv_udp_buf PARAMS ((int fd, unsigned char *buf, int len, int timeout)); |
49 | static int send_udp_buf PARAMS ((int fd, unsigned char *buf, int len)); | |
a76ef70a | 50 | #endif |
0e887539 SG |
51 | static void sparclite_open PARAMS ((char *name, int from_tty)); |
52 | static void sparclite_close PARAMS ((int quitting)); | |
53 | static void download PARAMS ((char *target_name, char *args, int from_tty, | |
54 | void (*write_routine) (bfd *from_bfd, | |
55 | asection *from_sec, | |
56 | file_ptr from_addr, | |
57 | bfd_vma to_addr, int len), | |
58 | void (*start_routine) (bfd_vma entry))); | |
59 | static void sparclite_serial_start PARAMS ((bfd_vma entry)); | |
60 | static void sparclite_serial_write PARAMS ((bfd *from_bfd, asection *from_sec, | |
61 | file_ptr from_addr, | |
62 | bfd_vma to_addr, int len)); | |
a76ef70a | 63 | #ifndef __GO32__ |
0e887539 SG |
64 | static unsigned short calc_checksum PARAMS ((unsigned char *buffer, |
65 | int count)); | |
66 | static void sparclite_udp_start PARAMS ((bfd_vma entry)); | |
67 | static void sparclite_udp_write PARAMS ((bfd *from_bfd, asection *from_sec, | |
68 | file_ptr from_addr, bfd_vma to_addr, | |
69 | int len)); | |
a76ef70a | 70 | #endif |
0e887539 | 71 | static void sparclite_download PARAMS ((char *filename, int from_tty)); |
b955f680 KH |
72 | |
73 | #define DDA2_SUP_ASI 0xb000000 | |
74 | #define DDA1_SUP_ASI 0xb0000 | |
75 | ||
76 | #define DDA2_ASI_MASK 0xff000000 | |
77 | #define DDA1_ASI_MASK 0xff0000 | |
78 | #define DIA2_SUP_MODE 0x8000 | |
79 | #define DIA1_SUP_MODE 0x4000 | |
80 | #define DDA2_ENABLE 0x100 | |
81 | #define DDA1_ENABLE 0x80 | |
82 | #define DIA2_ENABLE 0x40 | |
83 | #define DIA1_ENABLE 0x20 | |
84 | #define DSINGLE_STEP 0x10 | |
85 | #define DDV_TYPE_MASK 0xc | |
86 | #define DDV_TYPE_LOAD 0x0 | |
87 | #define DDV_TYPE_STORE 0x4 | |
88 | #define DDV_TYPE_ACCESS 0x8 | |
89 | #define DDV_TYPE_ALWAYS 0xc | |
90 | #define DDV_COND 0x2 | |
91 | #define DDV_MASK 0x1 | |
92 | ||
93 | int | |
c746aa85 SG |
94 | sparclite_insert_watchpoint (addr, len, type) |
95 | CORE_ADDR addr; | |
96 | int len; | |
97 | int type; | |
b955f680 | 98 | { |
c746aa85 | 99 | CORE_ADDR dcr; |
b955f680 KH |
100 | |
101 | dcr = read_register (DCR_REGNUM); | |
102 | ||
103 | if (!(dcr & DDA1_ENABLE)) | |
b955f680 | 104 | { |
c746aa85 SG |
105 | write_register (DDA1_REGNUM, addr); |
106 | dcr &= ~(DDA1_ASI_MASK | DDV_TYPE_MASK); | |
107 | dcr |= (DDA1_SUP_ASI | DDA1_ENABLE); | |
108 | if (type == 1) | |
109 | { | |
110 | write_register (DDV1_REGNUM, 0); | |
111 | write_register (DDV2_REGNUM, 0xffffffff); | |
112 | dcr |= (DDV_TYPE_LOAD & (~DDV_COND & ~DDV_MASK)); | |
113 | } | |
114 | else if (type == 0) | |
115 | { | |
116 | write_register (DDV1_REGNUM, 0); | |
117 | write_register (DDV2_REGNUM, 0xffffffff); | |
118 | dcr |= (DDV_TYPE_STORE & (~DDV_COND & ~DDV_MASK)); | |
119 | } | |
120 | else | |
121 | { | |
122 | write_register (DDV1_REGNUM, 0); | |
123 | write_register (DDV2_REGNUM, 0xffffffff); | |
124 | dcr |= (DDV_TYPE_ACCESS); | |
125 | } | |
126 | write_register (DCR_REGNUM, dcr); | |
b955f680 | 127 | } |
b955f680 | 128 | else if (!(dcr & DDA2_ENABLE)) |
b955f680 | 129 | { |
c746aa85 SG |
130 | write_register (DDA2_REGNUM, addr); |
131 | dcr &= ~(DDA2_ASI_MASK & DDV_TYPE_MASK); | |
132 | dcr |= (DDA2_SUP_ASI | DDA2_ENABLE); | |
133 | if (type == 1) | |
134 | { | |
135 | write_register (DDV1_REGNUM, 0); | |
136 | write_register (DDV2_REGNUM, 0xffffffff); | |
137 | dcr |= (DDV_TYPE_LOAD & ~DDV_COND & ~DDV_MASK); | |
138 | } | |
139 | else if (type == 0) | |
140 | { | |
141 | write_register (DDV1_REGNUM, 0); | |
142 | write_register (DDV2_REGNUM, 0xffffffff); | |
143 | dcr |= (DDV_TYPE_STORE & ~DDV_COND & ~DDV_MASK); | |
144 | } | |
145 | else | |
146 | { | |
147 | write_register (DDV1_REGNUM, 0); | |
148 | write_register (DDV2_REGNUM, 0xffffffff); | |
149 | dcr |= (DDV_TYPE_ACCESS); | |
150 | } | |
151 | write_register (DCR_REGNUM, dcr); | |
b955f680 | 152 | } |
b955f680 KH |
153 | else |
154 | return -1; | |
155 | ||
156 | return 0; | |
157 | } | |
158 | ||
159 | int | |
c746aa85 SG |
160 | sparclite_remove_watchpoint (addr, len, type) |
161 | CORE_ADDR addr; | |
162 | int len; | |
163 | int type; | |
b955f680 | 164 | { |
c746aa85 | 165 | CORE_ADDR dcr, dda1, dda2; |
b955f680 KH |
166 | |
167 | dcr = read_register (DCR_REGNUM); | |
168 | dda1 = read_register (DDA1_REGNUM); | |
169 | dda2 = read_register (DDA2_REGNUM); | |
170 | ||
c746aa85 | 171 | if ((dcr & DDA1_ENABLE) && addr == dda1) |
b955f680 | 172 | write_register (DCR_REGNUM, (dcr & ~DDA1_ENABLE)); |
c746aa85 | 173 | else if ((dcr & DDA2_ENABLE) && addr == dda2) |
b955f680 | 174 | write_register (DCR_REGNUM, (dcr & ~DDA2_ENABLE)); |
b955f680 KH |
175 | else |
176 | return -1; | |
177 | ||
178 | return 0; | |
179 | } | |
180 | ||
181 | int | |
c746aa85 SG |
182 | sparclite_insert_hw_breakpoint (addr, len) |
183 | CORE_ADDR addr; | |
184 | int len; | |
b955f680 | 185 | { |
c746aa85 | 186 | CORE_ADDR dcr; |
b955f680 KH |
187 | |
188 | dcr = read_register (DCR_REGNUM); | |
189 | ||
c746aa85 SG |
190 | if (!(dcr & DIA1_ENABLE)) |
191 | { | |
192 | write_register (DIA1_REGNUM, addr); | |
193 | write_register (DCR_REGNUM, (dcr | DIA1_ENABLE | DIA1_SUP_MODE)); | |
194 | } | |
195 | else if (!(dcr & DIA2_ENABLE)) | |
196 | { | |
197 | write_register (DIA2_REGNUM, addr); | |
198 | write_register (DCR_REGNUM, (dcr | DIA2_ENABLE | DIA2_SUP_MODE)); | |
199 | } | |
b955f680 KH |
200 | else |
201 | return -1; | |
202 | ||
203 | return 0; | |
204 | } | |
205 | ||
206 | int | |
c746aa85 SG |
207 | sparclite_remove_hw_breakpoint (addr, shadow) |
208 | CORE_ADDR addr; | |
209 | int shadow; | |
b955f680 | 210 | { |
c746aa85 | 211 | CORE_ADDR dcr, dia1, dia2; |
b955f680 KH |
212 | |
213 | dcr = read_register (DCR_REGNUM); | |
214 | dia1 = read_register (DIA1_REGNUM); | |
215 | dia2 = read_register (DIA2_REGNUM); | |
216 | ||
c746aa85 | 217 | if ((dcr & DIA1_ENABLE) && addr == dia1) |
b955f680 | 218 | write_register (DCR_REGNUM, (dcr & ~DIA1_ENABLE)); |
c746aa85 | 219 | else if ((dcr & DIA2_ENABLE) && addr == dia2) |
b955f680 | 220 | write_register (DCR_REGNUM, (dcr & ~DIA2_ENABLE)); |
b955f680 KH |
221 | else |
222 | return -1; | |
c746aa85 | 223 | |
b955f680 KH |
224 | return 0; |
225 | } | |
226 | ||
227 | int | |
c746aa85 SG |
228 | sparclite_check_watch_resources (type, cnt, ot) |
229 | int type; | |
230 | int cnt; | |
231 | int ot; | |
b955f680 | 232 | { |
c746aa85 SG |
233 | if (type == bp_hardware_breakpoint) |
234 | if (TARGET_HW_BREAK_LIMIT == 0) | |
235 | return 0; | |
236 | else if (cnt <= TARGET_HW_BREAK_LIMIT) | |
237 | return 1; | |
238 | else | |
239 | if (TARGET_HW_WATCH_LIMIT == 0) | |
240 | return 0; | |
241 | else if (ot) | |
242 | return -1; | |
243 | else if (cnt <= TARGET_HW_WATCH_LIMIT) | |
244 | return 1; | |
b955f680 KH |
245 | return -1; |
246 | } | |
247 | ||
248 | CORE_ADDR | |
c746aa85 | 249 | sparclite_stopped_data_address () |
b955f680 KH |
250 | { |
251 | CORE_ADDR dsr, dda1, dda2; | |
252 | ||
253 | dsr = read_register (DSR_REGNUM); | |
254 | dda1 = read_register (DDA1_REGNUM); | |
255 | dda2 = read_register (DDA2_REGNUM); | |
256 | ||
c746aa85 SG |
257 | if (dsr & 0x10) |
258 | return dda1; | |
259 | else if (dsr & 0x20) | |
260 | return dda2; | |
261 | else | |
262 | return 0; | |
b955f680 | 263 | } |
0e887539 SG |
264 | \f |
265 | static serial_t | |
266 | open_tty (name) | |
267 | char *name; | |
268 | { | |
269 | serial_t desc; | |
270 | ||
271 | desc = SERIAL_OPEN (name); | |
272 | if (!desc) | |
273 | perror_with_name (name); | |
274 | ||
275 | if (baud_rate != -1) | |
276 | { | |
277 | if (SERIAL_SETBAUDRATE (desc, baud_rate)) | |
278 | { | |
279 | SERIAL_CLOSE (desc); | |
280 | perror_with_name (name); | |
281 | } | |
282 | } | |
283 | ||
284 | SERIAL_RAW (desc); | |
285 | ||
286 | SERIAL_FLUSH_INPUT (desc); | |
287 | ||
288 | return desc; | |
289 | } | |
290 | ||
291 | static int | |
292 | send_resp (desc, c) | |
293 | serial_t desc; | |
294 | char c; | |
295 | { | |
296 | int i; | |
297 | ||
298 | SERIAL_WRITE (desc, &c, 1); | |
299 | i = SERIAL_READCHAR (desc, 2); | |
300 | ||
301 | if (i >= 0) | |
302 | return i; | |
303 | ||
304 | switch (i) | |
305 | { | |
306 | case SERIAL_ERROR: | |
307 | perror_with_name ("Remote communication error"); | |
308 | case SERIAL_TIMEOUT: | |
309 | error ("Remote timeout"); | |
310 | case SERIAL_EOF: | |
311 | error ("Remote connection closed"); | |
312 | } | |
313 | } | |
314 | ||
315 | static void | |
316 | close_tty (ignore) | |
317 | int ignore; | |
318 | { | |
319 | if (!remote_desc) | |
320 | return; | |
321 | ||
322 | SERIAL_CLOSE (remote_desc); | |
323 | ||
324 | remote_desc = NULL; | |
325 | } | |
326 | ||
a76ef70a | 327 | #ifndef __GO32__ |
0e887539 SG |
328 | static int |
329 | recv_udp_buf (fd, buf, len, timeout) | |
330 | int fd, len; | |
331 | unsigned char *buf; | |
332 | int timeout; | |
333 | { | |
334 | int cc; | |
335 | fd_set readfds; | |
336 | ||
337 | FD_ZERO (&readfds); | |
338 | FD_SET (fd, &readfds); | |
339 | ||
340 | if (timeout >= 0) | |
341 | { | |
342 | struct timeval timebuf; | |
343 | ||
344 | timebuf.tv_sec = timeout; | |
345 | timebuf.tv_usec = 0; | |
346 | cc = select (fd + 1, &readfds, 0, 0, &timebuf); | |
347 | } | |
348 | else | |
349 | cc = select (fd + 1, &readfds, 0, 0, 0); | |
350 | ||
351 | if (cc == 0) | |
352 | return 0; | |
353 | ||
354 | if (cc != 1) | |
355 | perror_with_name ("recv_udp_buf: Bad return value from select:"); | |
356 | ||
357 | cc = recv (fd, buf, len, 0); | |
358 | ||
359 | if (cc < 0) | |
360 | perror_with_name ("Got an error from recv: "); | |
361 | } | |
362 | ||
363 | static int | |
364 | send_udp_buf (fd, buf, len) | |
365 | int fd, len; | |
366 | unsigned char *buf; | |
367 | { | |
368 | int cc; | |
369 | ||
370 | cc = send (fd, buf, len, 0); | |
371 | ||
372 | if (cc == len) | |
373 | return; | |
374 | ||
375 | if (cc < 0) | |
376 | perror_with_name ("Got an error from send: "); | |
377 | ||
378 | error ("Short count in send: tried %d, sent %d\n", len, cc); | |
379 | } | |
a76ef70a | 380 | #endif /* __GO32__ */ |
0e887539 SG |
381 | |
382 | static void | |
383 | sparclite_open (name, from_tty) | |
384 | char *name; | |
385 | int from_tty; | |
386 | { | |
387 | struct cleanup *old_chain; | |
388 | int c; | |
389 | char *p; | |
390 | ||
391 | if (!name) | |
392 | error ("You need to specify what device or hostname is associated with the SparcLite board."); | |
393 | ||
394 | target_preopen (from_tty); | |
395 | ||
396 | unpush_target (&sparclite_ops); | |
397 | ||
398 | if (remote_target_name) | |
399 | free (remote_target_name); | |
400 | ||
401 | remote_target_name = strsave (name); | |
402 | ||
403 | /* We need a 'serial' or 'udp' keyword to disambiguate host:port, which can | |
404 | mean either a serial port on a terminal server, or the IP address of a | |
405 | SPARClite demo board. If there's no colon, then it pretty much has to be | |
406 | a local device (except for DOS... grrmble) */ | |
407 | ||
408 | p = strchr (name, ' '); | |
409 | ||
410 | if (p) | |
411 | { | |
412 | *p++ = '\000'; | |
413 | while ((*p != '\000') && isspace (*p)) p++; | |
414 | ||
415 | if (strncmp (name, "serial", strlen (name)) == 0) | |
416 | serial_flag = 1; | |
417 | else if (strncmp (name, "udp", strlen (name)) == 0) | |
418 | serial_flag = 0; | |
419 | else | |
420 | error ("Must specify either `serial' or `udp'."); | |
421 | } | |
422 | else | |
423 | { | |
424 | p = name; | |
425 | ||
426 | if (!strchr (name, ':')) | |
427 | serial_flag = 1; /* No colon is unambiguous (local device) */ | |
428 | else | |
429 | error ("Usage: target sparclite serial /dev/ttyb\n\ | |
430 | or: target sparclite udp host"); | |
431 | } | |
432 | ||
433 | if (serial_flag) | |
434 | { | |
435 | remote_desc = open_tty (p); | |
436 | ||
437 | old_chain = make_cleanup (close_tty, 0); | |
438 | ||
439 | c = send_resp (remote_desc, 0x00); | |
440 | ||
441 | if (c != 0xaa) | |
442 | error ("Unknown response (0x%x) from SparcLite. Try resetting the board.", | |
443 | c); | |
444 | ||
445 | c = send_resp (remote_desc, 0x55); | |
446 | ||
447 | if (c != 0x55) | |
448 | error ("Sparclite appears to be ill."); | |
449 | } | |
450 | else | |
451 | { | |
a76ef70a | 452 | #ifndef __GO32__ |
0e887539 SG |
453 | struct hostent *he; |
454 | struct sockaddr_in sockaddr; | |
455 | unsigned char buffer[100]; | |
456 | int cc; | |
457 | ||
458 | /* Setup the socket. Must be raw UDP. */ | |
459 | ||
460 | he = gethostbyname (p); | |
461 | ||
462 | if (!he) | |
463 | error ("No such host %s.", p); | |
464 | ||
465 | udp_fd = socket (PF_INET, SOCK_DGRAM, 0); | |
466 | ||
467 | old_chain = make_cleanup (close, udp_fd); | |
468 | ||
469 | sockaddr.sin_family = PF_INET; | |
470 | sockaddr.sin_port = htons(7000); | |
471 | memcpy (&sockaddr.sin_addr.s_addr, he->h_addr, sizeof (struct in_addr)); | |
472 | ||
473 | if (connect (udp_fd, &sockaddr, sizeof(sockaddr))) | |
474 | perror_with_name ("Connect failed"); | |
475 | ||
476 | buffer[0] = 0x5; | |
477 | buffer[1] = 0; | |
478 | ||
479 | send_udp_buf (udp_fd, buffer, 2); /* Request version */ | |
480 | cc = recv_udp_buf (udp_fd, buffer, sizeof(buffer), 5); /* Get response */ | |
481 | if (cc == 0) | |
482 | error ("SPARClite isn't responding."); | |
483 | ||
484 | if (cc < 3) | |
485 | error ("SPARClite appears to be ill."); | |
a76ef70a SG |
486 | #else |
487 | error ("UDP downloading is not supported for DOS hosts."); | |
488 | #endif /* __GO32__ */ | |
0e887539 SG |
489 | } |
490 | ||
491 | printf_unfiltered ("[SPARClite appears to be alive]\n"); | |
492 | ||
493 | push_target (&sparclite_ops); | |
494 | ||
495 | discard_cleanups (old_chain); | |
496 | ||
497 | return; | |
498 | } | |
499 | ||
500 | static void | |
501 | sparclite_close (quitting) | |
502 | int quitting; | |
503 | { | |
504 | if (serial_flag) | |
505 | close_tty (0); | |
a76ef70a | 506 | #ifndef __GO32__ |
0e887539 SG |
507 | else |
508 | if (udp_fd != -1) | |
509 | close (udp_fd); | |
a76ef70a | 510 | #endif |
0e887539 SG |
511 | } |
512 | ||
513 | #define LOAD_ADDRESS 0x40000000 | |
514 | ||
515 | static void | |
516 | download (target_name, args, from_tty, write_routine, start_routine) | |
517 | char *target_name; | |
518 | char *args; | |
519 | int from_tty; | |
520 | void (*write_routine)(); | |
521 | void (*start_routine)(); | |
522 | { | |
523 | struct cleanup *old_chain; | |
524 | asection *section; | |
525 | bfd *pbfd; | |
526 | bfd_vma entry; | |
527 | int i; | |
528 | #define WRITESIZE 1024 | |
529 | char *filename; | |
530 | int quiet; | |
531 | int nostart; | |
532 | ||
533 | quiet = 0; | |
534 | nostart = 0; | |
535 | filename = NULL; | |
536 | ||
537 | while (*args != '\000') | |
538 | { | |
539 | char *arg; | |
540 | ||
541 | while (isspace (*args)) args++; | |
542 | ||
543 | arg = args; | |
544 | ||
545 | while ((*args != '\000') && !isspace (*args)) args++; | |
546 | ||
547 | if (*args != '\000') | |
548 | *args++ = '\000'; | |
549 | ||
550 | if (*arg != '-') | |
551 | filename = arg; | |
552 | else if (strncmp (arg, "-quiet", strlen (arg)) == 0) | |
553 | quiet = 1; | |
554 | else if (strncmp (arg, "-nostart", strlen (arg)) == 0) | |
555 | nostart = 1; | |
556 | else | |
557 | error ("unknown option `%s'", arg); | |
558 | } | |
559 | ||
560 | if (!filename) | |
561 | filename = get_exec_file (1); | |
562 | ||
563 | pbfd = bfd_openr (filename, gnutarget); | |
564 | if (pbfd == NULL) | |
565 | { | |
566 | perror_with_name (filename); | |
567 | return; | |
568 | } | |
569 | old_chain = make_cleanup (bfd_close, pbfd); | |
570 | ||
571 | if (!bfd_check_format (pbfd, bfd_object)) | |
572 | error ("\"%s\" is not an object file: %s", filename, | |
573 | bfd_errmsg (bfd_get_error ())); | |
574 | ||
575 | for (section = pbfd->sections; section; section = section->next) | |
576 | { | |
577 | if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) | |
578 | { | |
579 | bfd_vma section_address; | |
580 | bfd_size_type section_size; | |
581 | file_ptr fptr; | |
582 | ||
583 | section_address = bfd_get_section_vma (pbfd, section); | |
584 | /* Adjust sections from a.out files, since they don't | |
585 | carry their addresses with. */ | |
586 | if (bfd_get_flavour (pbfd) == bfd_target_aout_flavour) | |
587 | section_address += LOAD_ADDRESS; | |
588 | ||
589 | section_size = bfd_get_section_size_before_reloc (section); | |
590 | ||
591 | if (!quiet) | |
592 | printf_filtered ("[Loading section %s at 0x%x (%d bytes)]\n", | |
593 | bfd_get_section_name (pbfd, section), | |
594 | section_address, | |
595 | section_size); | |
596 | ||
597 | fptr = 0; | |
598 | while (section_size > 0) | |
599 | { | |
600 | int count; | |
601 | static char inds[] = "|/-\\"; | |
602 | static int k = 0; | |
603 | ||
604 | QUIT; | |
605 | ||
606 | count = min (section_size, WRITESIZE); | |
607 | ||
608 | write_routine (pbfd, section, fptr, section_address, count); | |
609 | ||
610 | if (!quiet) | |
611 | { | |
612 | printf_unfiltered ("\r%c", inds[k++ % 4]); | |
613 | gdb_flush (gdb_stdout); | |
614 | } | |
615 | ||
616 | section_address += count; | |
617 | fptr += count; | |
618 | section_size -= count; | |
619 | } | |
620 | } | |
621 | } | |
622 | ||
623 | if (!nostart) | |
624 | { | |
625 | entry = bfd_get_start_address (pbfd); | |
626 | ||
627 | if (!quiet) | |
628 | printf_unfiltered ("[Starting %s at 0x%x]\n", filename, entry); | |
629 | ||
630 | start_routine (entry); | |
631 | } | |
632 | ||
633 | do_cleanups (old_chain); | |
634 | } | |
635 | ||
636 | static void | |
637 | sparclite_serial_start (entry) | |
638 | bfd_vma entry; | |
639 | { | |
640 | char buffer[5]; | |
641 | int i; | |
642 | ||
643 | buffer[0] = 0x03; | |
644 | store_unsigned_integer (buffer + 1, 4, entry); | |
645 | ||
646 | SERIAL_WRITE (remote_desc, buffer, 1 + 4); | |
647 | i = SERIAL_READCHAR (remote_desc, 2); | |
648 | if (i != 0x55) | |
649 | error ("Can't start SparcLite. Error code %d\n", i); | |
650 | } | |
651 | ||
652 | static void | |
653 | sparclite_serial_write (from_bfd, from_sec, from_addr, to_addr, len) | |
654 | bfd *from_bfd; | |
655 | asection *from_sec; | |
656 | file_ptr from_addr; | |
657 | bfd_vma to_addr; | |
658 | int len; | |
659 | { | |
660 | char buffer[4 + 4 + WRITESIZE]; /* addr + len + data */ | |
661 | unsigned char checksum; | |
662 | int i; | |
663 | ||
664 | store_unsigned_integer (buffer, 4, to_addr); /* Address */ | |
665 | store_unsigned_integer (buffer + 4, 4, len); /* Length */ | |
666 | ||
667 | bfd_get_section_contents (from_bfd, from_sec, buffer + 8, from_addr, len); | |
668 | ||
669 | checksum = 0; | |
670 | for (i = 0; i < len; i++) | |
671 | checksum += buffer[8 + i]; | |
672 | ||
673 | i = send_resp (remote_desc, 0x01); | |
674 | ||
675 | if (i != 0x5a) | |
676 | error ("Bad response from load command (0x%x)", i); | |
677 | ||
678 | SERIAL_WRITE (remote_desc, buffer, 4 + 4 + len); | |
679 | i = SERIAL_READCHAR (remote_desc, 2); | |
680 | if (i < 0) | |
681 | error ("I/O error in serial code. Return code %d\n", i); | |
682 | ||
683 | if (i != checksum) | |
684 | error ("Bad checksum from load command (0x%x)", i); | |
685 | } | |
686 | ||
a76ef70a SG |
687 | #ifndef __GO32__ |
688 | ||
0e887539 SG |
689 | static unsigned short |
690 | calc_checksum (buffer, count) | |
691 | unsigned char *buffer; | |
692 | int count; | |
693 | { | |
694 | unsigned short checksum; | |
695 | ||
696 | checksum = 0; | |
697 | for (; count > 0; count -= 2, buffer += 2) | |
698 | checksum += (*buffer << 8) | *(buffer + 1); | |
699 | ||
700 | if (count != 0) | |
701 | checksum += *buffer << 8; | |
702 | ||
703 | return checksum; | |
704 | } | |
705 | ||
706 | static void | |
707 | sparclite_udp_start (entry) | |
708 | bfd_vma entry; | |
709 | { | |
710 | unsigned char buffer[6]; | |
711 | int i; | |
712 | ||
713 | buffer[0] = 0x3; | |
714 | buffer[1] = 0; | |
715 | buffer[2] = entry >> 24; | |
716 | buffer[3] = entry >> 16; | |
717 | buffer[4] = entry >> 8; | |
718 | buffer[5] = entry; | |
719 | ||
720 | send_udp_buf (udp_fd, buffer, 6); /* Send start addr */ | |
721 | i = recv_udp_buf (udp_fd, buffer, sizeof(buffer), -1); /* Get response */ | |
722 | ||
723 | if (i < 1 || buffer[0] != 0x55) | |
724 | error ("Failed to take start address."); | |
725 | } | |
726 | ||
727 | static void | |
728 | sparclite_udp_write (from_bfd, from_sec, from_addr, to_addr, len) | |
729 | bfd *from_bfd; | |
730 | asection *from_sec; | |
731 | file_ptr from_addr; | |
732 | bfd_vma to_addr; | |
733 | int len; | |
734 | { | |
735 | unsigned char buffer[2000]; | |
736 | unsigned short checksum; | |
737 | static int pkt_num = 0; | |
738 | static unsigned long old_addr = -1; | |
739 | int i; | |
740 | ||
741 | while (1) | |
742 | { | |
743 | if (to_addr != old_addr) | |
744 | { | |
745 | buffer[0] = 0x1; /* Load command */ | |
746 | buffer[1] = 0x1; /* Loading address */ | |
747 | buffer[2] = to_addr >> 24; | |
748 | buffer[3] = to_addr >> 16; | |
749 | buffer[4] = to_addr >> 8; | |
750 | buffer[5] = to_addr; | |
751 | ||
752 | checksum = 0; | |
753 | for (i = 0; i < 6; i++) | |
754 | checksum += buffer[i]; | |
755 | checksum &= 0xff; | |
756 | ||
757 | send_udp_buf (udp_fd, buffer, 6); | |
758 | i = recv_udp_buf (udp_fd, buffer, sizeof buffer, -1); | |
759 | ||
760 | if (i < 1) | |
761 | error ("Got back short checksum for load addr."); | |
762 | ||
763 | if (checksum != buffer[0]) | |
764 | error ("Got back bad checksum for load addr."); | |
765 | ||
766 | pkt_num = 0; /* Load addr resets packet seq # */ | |
767 | old_addr = to_addr; | |
768 | } | |
769 | ||
770 | bfd_get_section_contents (from_bfd, from_sec, buffer + 6, from_addr, | |
771 | len); | |
772 | ||
773 | checksum = calc_checksum (buffer + 6, len); | |
774 | ||
775 | buffer[0] = 0x1; /* Load command */ | |
776 | buffer[1] = 0x2; /* Loading data */ | |
777 | buffer[2] = pkt_num >> 8; | |
778 | buffer[3] = pkt_num; | |
779 | buffer[4] = checksum >> 8; | |
780 | buffer[5] = checksum; | |
781 | ||
782 | send_udp_buf (udp_fd, buffer, len + 6); | |
783 | i = recv_udp_buf (udp_fd, buffer, sizeof buffer, 3); | |
784 | ||
785 | if (i == 0) | |
786 | { | |
787 | fprintf_unfiltered (gdb_stderr, "send_data: timeout sending %d bytes to address 0x%x retrying\n", len, to_addr); | |
788 | continue; | |
789 | } | |
790 | ||
791 | if (buffer[0] != 0xff) | |
792 | error ("Got back bad response for load data."); | |
793 | ||
794 | old_addr += len; | |
795 | pkt_num++; | |
796 | ||
797 | return; | |
798 | } | |
799 | } | |
800 | ||
a76ef70a SG |
801 | #endif /* __GO32__ */ |
802 | ||
0e887539 SG |
803 | static void |
804 | sparclite_download (filename, from_tty) | |
805 | char *filename; | |
806 | int from_tty; | |
807 | { | |
808 | if (!serial_flag) | |
a76ef70a | 809 | #ifndef __GO32__ |
0e887539 SG |
810 | download (remote_target_name, filename, from_tty, sparclite_udp_write, |
811 | sparclite_udp_start); | |
a76ef70a SG |
812 | #else |
813 | abort (); /* sparclite_open should prevent this! */ | |
814 | #endif | |
0e887539 SG |
815 | else |
816 | download (remote_target_name, filename, from_tty, sparclite_serial_write, | |
817 | sparclite_serial_start); | |
818 | } | |
819 | \f | |
820 | /* Define the target subroutine names */ | |
821 | ||
822 | static struct target_ops sparclite_ops = | |
823 | { | |
824 | "sparclite", /* to_shortname */ | |
825 | "SPARClite remote target", /* to_longname */ | |
826 | "Use a remote SPARClite target board via a serial line, using a gdb-specific protocol.\n\ | |
827 | Specify the serial device it is connected to (e.g. /dev/ttya).", /* to_doc */ | |
828 | sparclite_open, /* to_open */ | |
829 | sparclite_close, /* to_close */ | |
830 | 0, /* to_attach */ | |
831 | 0, /* to_detach */ | |
832 | 0, /* to_resume */ | |
833 | 0, /* to_wait */ | |
834 | 0, /* to_fetch_registers */ | |
835 | 0, /* to_store_registers */ | |
836 | 0, /* to_prepare_to_store */ | |
837 | 0, /* to_xfer_memory */ | |
838 | 0, /* to_files_info */ | |
839 | 0, /* to_insert_breakpoint */ | |
840 | 0, /* to_remove_breakpoint */ | |
841 | 0, /* to_terminal_init */ | |
842 | 0, /* to_terminal_inferior */ | |
843 | 0, /* to_terminal_ours_for_output */ | |
844 | 0, /* to_terminal_ours */ | |
845 | 0, /* to_terminal_info */ | |
846 | 0, /* to_kill */ | |
847 | sparclite_download, /* to_load */ | |
848 | 0, /* to_lookup_symbol */ | |
849 | 0, /* to_create_inferior */ | |
850 | 0, /* to_mourn_inferior */ | |
851 | 0, /* to_can_run */ | |
852 | 0, /* to_notice_signals */ | |
853 | 0, /* to_stop */ | |
a76ef70a | 854 | download_stratum, /* to_stratum */ |
0e887539 SG |
855 | 0, /* to_next */ |
856 | 0, /* to_has_all_memory */ | |
857 | 0, /* to_has_memory */ | |
858 | 0, /* to_has_stack */ | |
859 | 0, /* to_has_registers */ | |
860 | 0, /* to_has_execution */ | |
861 | 0, /* sections */ | |
862 | 0, /* sections_end */ | |
863 | OPS_MAGIC /* to_magic */ | |
864 | }; | |
865 | ||
866 | void | |
867 | _initialize_sparcl_tdep () | |
868 | { | |
869 | add_target (&sparclite_ops); | |
870 | } |