Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Target dependent code for the Fujitsu SPARClite for GDB, the GNU debugger. |
43e526b9 | 2 | Copyright 1994, 1995, 1996, 1999 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
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. | |
c906108c | 10 | |
c5aa993b JM |
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. | |
c906108c | 15 | |
c5aa993b JM |
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., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | #include "defs.h" | |
22 | #include "gdbcore.h" | |
23 | #include "breakpoint.h" | |
24 | #include "target.h" | |
25 | #include "serial.h" | |
26 | #include <sys/types.h> | |
27 | ||
28 | #if (!defined(__GO32__) && !defined(_WIN32)) || defined(__CYGWIN32__) | |
29 | #define HAVE_SOCKETS | |
30 | #include <sys/time.h> | |
c906108c SS |
31 | #include <sys/socket.h> |
32 | #include <netinet/in.h> | |
33 | #include <netdb.h> | |
34 | #endif | |
35 | ||
43e526b9 | 36 | static struct target_ops sparclite_ops; |
c906108c SS |
37 | |
38 | static char *remote_target_name = NULL; | |
39 | static serial_t remote_desc = NULL; | |
40 | static int serial_flag; | |
41 | #ifdef HAVE_SOCKETS | |
42 | static int udp_fd = -1; | |
43 | #endif | |
44 | ||
a14ed312 KB |
45 | static serial_t open_tty (char *name); |
46 | static int send_resp (serial_t desc, char c); | |
74b7792f | 47 | static void close_tty (void * ignore); |
c906108c | 48 | #ifdef HAVE_SOCKETS |
a14ed312 KB |
49 | static int recv_udp_buf (int fd, unsigned char *buf, int len, int timeout); |
50 | static int send_udp_buf (int fd, unsigned char *buf, int len); | |
c906108c | 51 | #endif |
a14ed312 KB |
52 | static void sparclite_open (char *name, int from_tty); |
53 | static void sparclite_close (int quitting); | |
54 | static void download (char *target_name, char *args, int from_tty, | |
55 | void (*write_routine) (bfd * from_bfd, | |
56 | asection * from_sec, | |
57 | file_ptr from_addr, | |
58 | bfd_vma to_addr, int len), | |
59 | void (*start_routine) (bfd_vma entry)); | |
60 | static void sparclite_serial_start (bfd_vma entry); | |
61 | static void sparclite_serial_write (bfd * from_bfd, asection * from_sec, | |
62 | file_ptr from_addr, | |
63 | bfd_vma to_addr, int len); | |
c906108c | 64 | #ifdef HAVE_SOCKETS |
a14ed312 KB |
65 | static unsigned short calc_checksum (unsigned char *buffer, int count); |
66 | static void sparclite_udp_start (bfd_vma entry); | |
67 | static void sparclite_udp_write (bfd * from_bfd, asection * from_sec, | |
68 | file_ptr from_addr, bfd_vma to_addr, | |
69 | int len); | |
c906108c | 70 | #endif |
a14ed312 | 71 | static void sparclite_download (char *filename, int from_tty); |
c906108c SS |
72 | |
73 | #define DDA2_SUP_ASI 0xb000000 | |
74 | #define DDA1_SUP_ASI 0xb0000 | |
75 | ||
76 | #define DDA2_ASI_MASK 0xff000000 | |
c5aa993b | 77 | #define DDA1_ASI_MASK 0xff0000 |
c906108c SS |
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 | |
c5aa993b | 84 | #define DSINGLE_STEP 0x10 /* not used */ |
c906108c SS |
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 | |
94 | sparclite_insert_watchpoint (addr, len, type) | |
95 | CORE_ADDR addr; | |
96 | int len; | |
97 | int type; | |
98 | { | |
99 | CORE_ADDR dcr; | |
100 | ||
101 | dcr = read_register (DCR_REGNUM); | |
102 | ||
103 | if (!(dcr & DDA1_ENABLE)) | |
104 | { | |
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)); | |
c5aa993b | 113 | } |
c906108c SS |
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); | |
127 | } | |
128 | else if (!(dcr & DDA2_ENABLE)) | |
129 | { | |
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); | |
152 | } | |
153 | else | |
154 | return -1; | |
155 | ||
156 | return 0; | |
c5aa993b | 157 | } |
c906108c SS |
158 | |
159 | int | |
160 | sparclite_remove_watchpoint (addr, len, type) | |
161 | CORE_ADDR addr; | |
162 | int len; | |
163 | int type; | |
164 | { | |
165 | CORE_ADDR dcr, dda1, dda2; | |
166 | ||
167 | dcr = read_register (DCR_REGNUM); | |
168 | dda1 = read_register (DDA1_REGNUM); | |
169 | dda2 = read_register (DDA2_REGNUM); | |
170 | ||
171 | if ((dcr & DDA1_ENABLE) && addr == dda1) | |
172 | write_register (DCR_REGNUM, (dcr & ~DDA1_ENABLE)); | |
173 | else if ((dcr & DDA2_ENABLE) && addr == dda2) | |
174 | write_register (DCR_REGNUM, (dcr & ~DDA2_ENABLE)); | |
175 | else | |
176 | return -1; | |
177 | ||
178 | return 0; | |
179 | } | |
180 | ||
181 | int | |
182 | sparclite_insert_hw_breakpoint (addr, len) | |
183 | CORE_ADDR addr; | |
184 | int len; | |
185 | { | |
186 | CORE_ADDR dcr; | |
187 | ||
188 | dcr = read_register (DCR_REGNUM); | |
c5aa993b | 189 | |
c906108c SS |
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 | } | |
200 | else | |
201 | return -1; | |
202 | ||
203 | return 0; | |
204 | } | |
205 | ||
206 | int | |
207 | sparclite_remove_hw_breakpoint (addr, shadow) | |
208 | CORE_ADDR addr; | |
209 | int shadow; | |
210 | { | |
211 | CORE_ADDR dcr, dia1, dia2; | |
212 | ||
213 | dcr = read_register (DCR_REGNUM); | |
214 | dia1 = read_register (DIA1_REGNUM); | |
215 | dia2 = read_register (DIA2_REGNUM); | |
c5aa993b | 216 | |
c906108c SS |
217 | if ((dcr & DIA1_ENABLE) && addr == dia1) |
218 | write_register (DCR_REGNUM, (dcr & ~DIA1_ENABLE)); | |
219 | else if ((dcr & DIA2_ENABLE) && addr == dia2) | |
220 | write_register (DCR_REGNUM, (dcr & ~DIA2_ENABLE)); | |
221 | else | |
222 | return -1; | |
223 | ||
224 | return 0; | |
225 | } | |
226 | ||
227 | int | |
228 | sparclite_check_watch_resources (type, cnt, ot) | |
229 | int type; | |
230 | int cnt; | |
231 | int ot; | |
232 | { | |
233 | /* Watchpoints not supported on simulator. */ | |
234 | if (strcmp (target_shortname, "sim") == 0) | |
235 | return 0; | |
236 | ||
237 | if (type == bp_hardware_breakpoint) | |
238 | { | |
239 | if (TARGET_HW_BREAK_LIMIT == 0) | |
240 | return 0; | |
241 | else if (cnt <= TARGET_HW_BREAK_LIMIT) | |
242 | return 1; | |
243 | } | |
244 | else | |
245 | { | |
246 | if (TARGET_HW_WATCH_LIMIT == 0) | |
247 | return 0; | |
248 | else if (ot) | |
249 | return -1; | |
250 | else if (cnt <= TARGET_HW_WATCH_LIMIT) | |
251 | return 1; | |
252 | } | |
253 | return -1; | |
254 | } | |
255 | ||
256 | CORE_ADDR | |
257 | sparclite_stopped_data_address () | |
258 | { | |
259 | CORE_ADDR dsr, dda1, dda2; | |
260 | ||
261 | dsr = read_register (DSR_REGNUM); | |
262 | dda1 = read_register (DDA1_REGNUM); | |
263 | dda2 = read_register (DDA2_REGNUM); | |
264 | ||
265 | if (dsr & 0x10) | |
266 | return dda1; | |
267 | else if (dsr & 0x20) | |
268 | return dda2; | |
269 | else | |
270 | return 0; | |
271 | } | |
272 | \f | |
273 | static serial_t | |
274 | open_tty (name) | |
275 | char *name; | |
276 | { | |
277 | serial_t desc; | |
278 | ||
279 | desc = SERIAL_OPEN (name); | |
280 | if (!desc) | |
281 | perror_with_name (name); | |
282 | ||
283 | if (baud_rate != -1) | |
284 | { | |
285 | if (SERIAL_SETBAUDRATE (desc, baud_rate)) | |
286 | { | |
287 | SERIAL_CLOSE (desc); | |
288 | perror_with_name (name); | |
289 | } | |
290 | } | |
291 | ||
292 | SERIAL_RAW (desc); | |
293 | ||
294 | SERIAL_FLUSH_INPUT (desc); | |
295 | ||
296 | return desc; | |
297 | } | |
298 | ||
299 | /* Read a single character from the remote end, masking it down to 7 bits. */ | |
300 | ||
301 | static int | |
302 | readchar (desc, timeout) | |
303 | serial_t desc; | |
304 | int timeout; | |
305 | { | |
306 | int ch; | |
307 | char s[10]; | |
308 | ||
309 | ch = SERIAL_READCHAR (desc, timeout); | |
310 | ||
311 | switch (ch) | |
312 | { | |
313 | case SERIAL_EOF: | |
314 | error ("SPARClite remote connection closed"); | |
315 | case SERIAL_ERROR: | |
316 | perror_with_name ("SPARClite communication error"); | |
317 | case SERIAL_TIMEOUT: | |
318 | error ("SPARClite remote timeout"); | |
319 | default: | |
320 | if (remote_debug > 0) | |
321 | { | |
322 | sprintf (s, "[%02x]", ch & 0xff); | |
323 | puts_debug ("read -->", s, "<--"); | |
324 | } | |
325 | return ch; | |
326 | } | |
327 | } | |
328 | ||
329 | static void | |
330 | debug_serial_write (desc, buf, len) | |
331 | serial_t desc; | |
332 | char *buf; | |
333 | int len; | |
334 | { | |
335 | char s[10]; | |
336 | ||
337 | SERIAL_WRITE (desc, buf, len); | |
338 | if (remote_debug > 0) | |
339 | { | |
340 | while (len-- > 0) | |
341 | { | |
342 | sprintf (s, "[%02x]", *buf & 0xff); | |
343 | puts_debug ("Sent -->", s, "<--"); | |
344 | buf++; | |
345 | } | |
346 | } | |
347 | } | |
348 | ||
349 | ||
350 | static int | |
351 | send_resp (desc, c) | |
352 | serial_t desc; | |
353 | char c; | |
354 | { | |
355 | debug_serial_write (desc, &c, 1); | |
356 | return readchar (desc, remote_timeout); | |
357 | } | |
358 | ||
359 | static void | |
74b7792f | 360 | close_tty (void *ignore) |
c906108c SS |
361 | { |
362 | if (!remote_desc) | |
363 | return; | |
364 | ||
365 | SERIAL_CLOSE (remote_desc); | |
366 | ||
367 | remote_desc = NULL; | |
368 | } | |
369 | ||
370 | #ifdef HAVE_SOCKETS | |
371 | static int | |
372 | recv_udp_buf (fd, buf, len, timeout) | |
373 | int fd, len; | |
374 | unsigned char *buf; | |
375 | int timeout; | |
376 | { | |
377 | int cc; | |
378 | fd_set readfds; | |
379 | ||
380 | FD_ZERO (&readfds); | |
381 | FD_SET (fd, &readfds); | |
382 | ||
383 | if (timeout >= 0) | |
384 | { | |
385 | struct timeval timebuf; | |
386 | ||
387 | timebuf.tv_sec = timeout; | |
388 | timebuf.tv_usec = 0; | |
389 | cc = select (fd + 1, &readfds, 0, 0, &timebuf); | |
390 | } | |
391 | else | |
392 | cc = select (fd + 1, &readfds, 0, 0, 0); | |
393 | ||
394 | if (cc == 0) | |
395 | return 0; | |
396 | ||
397 | if (cc != 1) | |
398 | perror_with_name ("recv_udp_buf: Bad return value from select:"); | |
399 | ||
400 | cc = recv (fd, buf, len, 0); | |
401 | ||
402 | if (cc < 0) | |
403 | perror_with_name ("Got an error from recv: "); | |
404 | } | |
405 | ||
406 | static int | |
407 | send_udp_buf (fd, buf, len) | |
408 | int fd, len; | |
409 | unsigned char *buf; | |
410 | { | |
411 | int cc; | |
412 | ||
413 | cc = send (fd, buf, len, 0); | |
414 | ||
415 | if (cc == len) | |
416 | return; | |
417 | ||
418 | if (cc < 0) | |
419 | perror_with_name ("Got an error from send: "); | |
420 | ||
421 | error ("Short count in send: tried %d, sent %d\n", len, cc); | |
422 | } | |
423 | #endif /* HAVE_SOCKETS */ | |
424 | ||
425 | static void | |
426 | sparclite_open (name, from_tty) | |
427 | char *name; | |
428 | int from_tty; | |
429 | { | |
430 | struct cleanup *old_chain; | |
431 | int c; | |
432 | char *p; | |
433 | ||
434 | if (!name) | |
435 | error ("You need to specify what device or hostname is associated with the SparcLite board."); | |
436 | ||
437 | target_preopen (from_tty); | |
438 | ||
439 | unpush_target (&sparclite_ops); | |
440 | ||
441 | if (remote_target_name) | |
442 | free (remote_target_name); | |
443 | ||
444 | remote_target_name = strsave (name); | |
445 | ||
446 | /* We need a 'serial' or 'udp' keyword to disambiguate host:port, which can | |
447 | mean either a serial port on a terminal server, or the IP address of a | |
448 | SPARClite demo board. If there's no colon, then it pretty much has to be | |
449 | a local device (except for DOS... grrmble) */ | |
450 | ||
451 | p = strchr (name, ' '); | |
452 | ||
453 | if (p) | |
454 | { | |
455 | *p++ = '\000'; | |
c5aa993b JM |
456 | while ((*p != '\000') && isspace (*p)) |
457 | p++; | |
c906108c SS |
458 | |
459 | if (strncmp (name, "serial", strlen (name)) == 0) | |
460 | serial_flag = 1; | |
461 | else if (strncmp (name, "udp", strlen (name)) == 0) | |
462 | serial_flag = 0; | |
463 | else | |
464 | error ("Must specify either `serial' or `udp'."); | |
465 | } | |
466 | else | |
467 | { | |
468 | p = name; | |
469 | ||
470 | if (!strchr (name, ':')) | |
471 | serial_flag = 1; /* No colon is unambiguous (local device) */ | |
472 | else | |
473 | error ("Usage: target sparclite serial /dev/ttyb\n\ | |
474 | or: target sparclite udp host"); | |
475 | } | |
476 | ||
477 | if (serial_flag) | |
478 | { | |
479 | remote_desc = open_tty (p); | |
480 | ||
74b7792f | 481 | old_chain = make_cleanup (close_tty, 0 /*ignore*/); |
c906108c SS |
482 | |
483 | c = send_resp (remote_desc, 0x00); | |
484 | ||
485 | if (c != 0xaa) | |
486 | error ("Unknown response (0x%x) from SparcLite. Try resetting the board.", | |
487 | c); | |
488 | ||
489 | c = send_resp (remote_desc, 0x55); | |
490 | ||
491 | if (c != 0x55) | |
492 | error ("Sparclite appears to be ill."); | |
493 | } | |
494 | else | |
495 | { | |
496 | #ifdef HAVE_SOCKETS | |
497 | struct hostent *he; | |
498 | struct sockaddr_in sockaddr; | |
499 | unsigned char buffer[100]; | |
500 | int cc; | |
501 | ||
502 | /* Setup the socket. Must be raw UDP. */ | |
503 | ||
504 | he = gethostbyname (p); | |
505 | ||
506 | if (!he) | |
507 | error ("No such host %s.", p); | |
508 | ||
509 | udp_fd = socket (PF_INET, SOCK_DGRAM, 0); | |
510 | ||
511 | old_chain = make_cleanup (close, udp_fd); | |
512 | ||
513 | sockaddr.sin_family = PF_INET; | |
c5aa993b | 514 | sockaddr.sin_port = htons (7000); |
c906108c SS |
515 | memcpy (&sockaddr.sin_addr.s_addr, he->h_addr, sizeof (struct in_addr)); |
516 | ||
c5aa993b | 517 | if (connect (udp_fd, &sockaddr, sizeof (sockaddr))) |
c906108c SS |
518 | perror_with_name ("Connect failed"); |
519 | ||
520 | buffer[0] = 0x5; | |
521 | buffer[1] = 0; | |
522 | ||
c5aa993b JM |
523 | send_udp_buf (udp_fd, buffer, 2); /* Request version */ |
524 | cc = recv_udp_buf (udp_fd, buffer, sizeof (buffer), 5); /* Get response */ | |
c906108c SS |
525 | if (cc == 0) |
526 | error ("SPARClite isn't responding."); | |
527 | ||
528 | if (cc < 3) | |
529 | error ("SPARClite appears to be ill."); | |
530 | #else | |
531 | error ("UDP downloading is not supported for DOS hosts."); | |
532 | #endif /* HAVE_SOCKETS */ | |
533 | } | |
534 | ||
535 | printf_unfiltered ("[SPARClite appears to be alive]\n"); | |
536 | ||
537 | push_target (&sparclite_ops); | |
538 | ||
539 | discard_cleanups (old_chain); | |
540 | ||
541 | return; | |
542 | } | |
543 | ||
544 | static void | |
545 | sparclite_close (quitting) | |
546 | int quitting; | |
547 | { | |
548 | if (serial_flag) | |
549 | close_tty (0); | |
550 | #ifdef HAVE_SOCKETS | |
c5aa993b JM |
551 | else if (udp_fd != -1) |
552 | close (udp_fd); | |
c906108c SS |
553 | #endif |
554 | } | |
555 | ||
556 | #define LOAD_ADDRESS 0x40000000 | |
557 | ||
558 | static void | |
559 | download (target_name, args, from_tty, write_routine, start_routine) | |
560 | char *target_name; | |
561 | char *args; | |
562 | int from_tty; | |
507f3c78 KB |
563 | void (*write_routine) (bfd * from_bfd, asection * from_sec, |
564 | file_ptr from_addr, bfd_vma to_addr, int len); | |
565 | void (*start_routine) (bfd_vma entry); | |
c906108c SS |
566 | { |
567 | struct cleanup *old_chain; | |
568 | asection *section; | |
569 | bfd *pbfd; | |
570 | bfd_vma entry; | |
571 | int i; | |
572 | #define WRITESIZE 1024 | |
573 | char *filename; | |
574 | int quiet; | |
575 | int nostart; | |
576 | ||
577 | quiet = 0; | |
578 | nostart = 0; | |
579 | filename = NULL; | |
580 | ||
581 | while (*args != '\000') | |
582 | { | |
583 | char *arg; | |
584 | ||
c5aa993b JM |
585 | while (isspace (*args)) |
586 | args++; | |
c906108c SS |
587 | |
588 | arg = args; | |
589 | ||
c5aa993b JM |
590 | while ((*args != '\000') && !isspace (*args)) |
591 | args++; | |
c906108c SS |
592 | |
593 | if (*args != '\000') | |
594 | *args++ = '\000'; | |
595 | ||
596 | if (*arg != '-') | |
597 | filename = arg; | |
598 | else if (strncmp (arg, "-quiet", strlen (arg)) == 0) | |
599 | quiet = 1; | |
600 | else if (strncmp (arg, "-nostart", strlen (arg)) == 0) | |
601 | nostart = 1; | |
602 | else | |
603 | error ("unknown option `%s'", arg); | |
604 | } | |
605 | ||
606 | if (!filename) | |
607 | filename = get_exec_file (1); | |
608 | ||
609 | pbfd = bfd_openr (filename, gnutarget); | |
610 | if (pbfd == NULL) | |
611 | { | |
612 | perror_with_name (filename); | |
613 | return; | |
614 | } | |
5c65bbb6 | 615 | old_chain = make_cleanup_bfd_close (pbfd); |
c906108c | 616 | |
c5aa993b | 617 | if (!bfd_check_format (pbfd, bfd_object)) |
c906108c SS |
618 | error ("\"%s\" is not an object file: %s", filename, |
619 | bfd_errmsg (bfd_get_error ())); | |
620 | ||
c5aa993b | 621 | for (section = pbfd->sections; section; section = section->next) |
c906108c SS |
622 | { |
623 | if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) | |
624 | { | |
c5aa993b | 625 | bfd_vma section_address; |
c906108c | 626 | bfd_size_type section_size; |
c5aa993b JM |
627 | file_ptr fptr; |
628 | const char *section_name; | |
c906108c | 629 | |
c5aa993b | 630 | section_name = bfd_get_section_name (pbfd, section); |
c906108c SS |
631 | |
632 | section_address = bfd_get_section_vma (pbfd, section); | |
633 | ||
634 | /* Adjust sections from a.out files, since they don't | |
635 | carry their addresses with. */ | |
636 | if (bfd_get_flavour (pbfd) == bfd_target_aout_flavour) | |
637 | { | |
638 | if (strcmp (section_name, ".text") == 0) | |
639 | section_address = bfd_get_start_address (pbfd); | |
640 | else if (strcmp (section_name, ".data") == 0) | |
641 | { | |
642 | /* Read the first 8 bytes of the data section. | |
643 | There should be the string 'DaTa' followed by | |
644 | a word containing the actual section address. */ | |
645 | struct data_marker | |
c5aa993b JM |
646 | { |
647 | char signature[4]; /* 'DaTa' */ | |
648 | unsigned char sdata[4]; /* &sdata */ | |
649 | } | |
650 | marker; | |
c906108c SS |
651 | bfd_get_section_contents (pbfd, section, &marker, 0, |
652 | sizeof (marker)); | |
653 | if (strncmp (marker.signature, "DaTa", 4) == 0) | |
654 | { | |
655 | if (TARGET_BYTE_ORDER == BIG_ENDIAN) | |
656 | section_address = bfd_getb32 (marker.sdata); | |
657 | else | |
658 | section_address = bfd_getl32 (marker.sdata); | |
659 | } | |
660 | } | |
661 | } | |
662 | ||
663 | section_size = bfd_get_section_size_before_reloc (section); | |
664 | ||
665 | if (!quiet) | |
666 | printf_filtered ("[Loading section %s at 0x%x (%d bytes)]\n", | |
667 | bfd_get_section_name (pbfd, section), | |
668 | section_address, | |
669 | section_size); | |
670 | ||
671 | fptr = 0; | |
672 | while (section_size > 0) | |
673 | { | |
674 | int count; | |
675 | static char inds[] = "|/-\\"; | |
676 | static int k = 0; | |
677 | ||
678 | QUIT; | |
679 | ||
680 | count = min (section_size, WRITESIZE); | |
681 | ||
682 | write_routine (pbfd, section, fptr, section_address, count); | |
683 | ||
684 | if (!quiet) | |
685 | { | |
686 | printf_unfiltered ("\r%c", inds[k++ % 4]); | |
687 | gdb_flush (gdb_stdout); | |
688 | } | |
689 | ||
690 | section_address += count; | |
691 | fptr += count; | |
692 | section_size -= count; | |
693 | } | |
694 | } | |
695 | } | |
696 | ||
697 | if (!nostart) | |
698 | { | |
699 | entry = bfd_get_start_address (pbfd); | |
700 | ||
701 | if (!quiet) | |
702 | printf_unfiltered ("[Starting %s at 0x%x]\n", filename, entry); | |
703 | ||
704 | start_routine (entry); | |
705 | } | |
706 | ||
707 | do_cleanups (old_chain); | |
708 | } | |
709 | ||
710 | static void | |
711 | sparclite_serial_start (entry) | |
712 | bfd_vma entry; | |
713 | { | |
714 | char buffer[5]; | |
715 | int i; | |
716 | ||
717 | buffer[0] = 0x03; | |
718 | store_unsigned_integer (buffer + 1, 4, entry); | |
719 | ||
720 | debug_serial_write (remote_desc, buffer, 1 + 4); | |
721 | i = readchar (remote_desc, remote_timeout); | |
722 | if (i != 0x55) | |
723 | error ("Can't start SparcLite. Error code %d\n", i); | |
724 | } | |
725 | ||
726 | static void | |
727 | sparclite_serial_write (from_bfd, from_sec, from_addr, to_addr, len) | |
728 | bfd *from_bfd; | |
729 | asection *from_sec; | |
730 | file_ptr from_addr; | |
731 | bfd_vma to_addr; | |
732 | int len; | |
733 | { | |
c5aa993b | 734 | char buffer[4 + 4 + WRITESIZE]; /* addr + len + data */ |
c906108c SS |
735 | unsigned char checksum; |
736 | int i; | |
737 | ||
c5aa993b JM |
738 | store_unsigned_integer (buffer, 4, to_addr); /* Address */ |
739 | store_unsigned_integer (buffer + 4, 4, len); /* Length */ | |
c906108c SS |
740 | |
741 | bfd_get_section_contents (from_bfd, from_sec, buffer + 8, from_addr, len); | |
742 | ||
743 | checksum = 0; | |
744 | for (i = 0; i < len; i++) | |
745 | checksum += buffer[8 + i]; | |
746 | ||
747 | i = send_resp (remote_desc, 0x01); | |
748 | ||
749 | if (i != 0x5a) | |
750 | error ("Bad response from load command (0x%x)", i); | |
751 | ||
752 | debug_serial_write (remote_desc, buffer, 4 + 4 + len); | |
753 | i = readchar (remote_desc, remote_timeout); | |
754 | ||
755 | if (i != checksum) | |
756 | error ("Bad checksum from load command (0x%x)", i); | |
757 | } | |
758 | ||
759 | #ifdef HAVE_SOCKETS | |
760 | ||
761 | static unsigned short | |
762 | calc_checksum (buffer, count) | |
763 | unsigned char *buffer; | |
764 | int count; | |
765 | { | |
766 | unsigned short checksum; | |
767 | ||
768 | checksum = 0; | |
769 | for (; count > 0; count -= 2, buffer += 2) | |
770 | checksum += (*buffer << 8) | *(buffer + 1); | |
771 | ||
772 | if (count != 0) | |
773 | checksum += *buffer << 8; | |
774 | ||
775 | return checksum; | |
776 | } | |
777 | ||
778 | static void | |
779 | sparclite_udp_start (entry) | |
780 | bfd_vma entry; | |
781 | { | |
782 | unsigned char buffer[6]; | |
783 | int i; | |
784 | ||
785 | buffer[0] = 0x3; | |
786 | buffer[1] = 0; | |
787 | buffer[2] = entry >> 24; | |
788 | buffer[3] = entry >> 16; | |
789 | buffer[4] = entry >> 8; | |
790 | buffer[5] = entry; | |
791 | ||
c5aa993b JM |
792 | send_udp_buf (udp_fd, buffer, 6); /* Send start addr */ |
793 | i = recv_udp_buf (udp_fd, buffer, sizeof (buffer), -1); /* Get response */ | |
c906108c SS |
794 | |
795 | if (i < 1 || buffer[0] != 0x55) | |
796 | error ("Failed to take start address."); | |
797 | } | |
798 | ||
799 | static void | |
800 | sparclite_udp_write (from_bfd, from_sec, from_addr, to_addr, len) | |
801 | bfd *from_bfd; | |
802 | asection *from_sec; | |
803 | file_ptr from_addr; | |
804 | bfd_vma to_addr; | |
805 | int len; | |
806 | { | |
807 | unsigned char buffer[2000]; | |
808 | unsigned short checksum; | |
809 | static int pkt_num = 0; | |
810 | static unsigned long old_addr = -1; | |
811 | int i; | |
812 | ||
813 | while (1) | |
814 | { | |
815 | if (to_addr != old_addr) | |
816 | { | |
817 | buffer[0] = 0x1; /* Load command */ | |
818 | buffer[1] = 0x1; /* Loading address */ | |
819 | buffer[2] = to_addr >> 24; | |
820 | buffer[3] = to_addr >> 16; | |
821 | buffer[4] = to_addr >> 8; | |
822 | buffer[5] = to_addr; | |
823 | ||
824 | checksum = 0; | |
825 | for (i = 0; i < 6; i++) | |
826 | checksum += buffer[i]; | |
827 | checksum &= 0xff; | |
828 | ||
829 | send_udp_buf (udp_fd, buffer, 6); | |
830 | i = recv_udp_buf (udp_fd, buffer, sizeof buffer, -1); | |
831 | ||
832 | if (i < 1) | |
833 | error ("Got back short checksum for load addr."); | |
834 | ||
835 | if (checksum != buffer[0]) | |
836 | error ("Got back bad checksum for load addr."); | |
837 | ||
838 | pkt_num = 0; /* Load addr resets packet seq # */ | |
839 | old_addr = to_addr; | |
840 | } | |
841 | ||
842 | bfd_get_section_contents (from_bfd, from_sec, buffer + 6, from_addr, | |
843 | len); | |
844 | ||
845 | checksum = calc_checksum (buffer + 6, len); | |
846 | ||
847 | buffer[0] = 0x1; /* Load command */ | |
848 | buffer[1] = 0x2; /* Loading data */ | |
849 | buffer[2] = pkt_num >> 8; | |
850 | buffer[3] = pkt_num; | |
851 | buffer[4] = checksum >> 8; | |
852 | buffer[5] = checksum; | |
853 | ||
854 | send_udp_buf (udp_fd, buffer, len + 6); | |
855 | i = recv_udp_buf (udp_fd, buffer, sizeof buffer, 3); | |
856 | ||
857 | if (i == 0) | |
858 | { | |
859 | fprintf_unfiltered (gdb_stderr, "send_data: timeout sending %d bytes to address 0x%x retrying\n", len, to_addr); | |
860 | continue; | |
861 | } | |
862 | ||
863 | if (buffer[0] != 0xff) | |
864 | error ("Got back bad response for load data."); | |
865 | ||
866 | old_addr += len; | |
867 | pkt_num++; | |
868 | ||
869 | return; | |
870 | } | |
871 | } | |
872 | ||
873 | #endif /* HAVE_SOCKETS */ | |
874 | ||
875 | static void | |
876 | sparclite_download (filename, from_tty) | |
877 | char *filename; | |
878 | int from_tty; | |
879 | { | |
880 | if (!serial_flag) | |
881 | #ifdef HAVE_SOCKETS | |
882 | download (remote_target_name, filename, from_tty, sparclite_udp_write, | |
883 | sparclite_udp_start); | |
884 | #else | |
885 | abort (); /* sparclite_open should prevent this! */ | |
886 | #endif | |
887 | else | |
888 | download (remote_target_name, filename, from_tty, sparclite_serial_write, | |
889 | sparclite_serial_start); | |
890 | } | |
891 | \f | |
43e526b9 | 892 | /* Set up the sparclite target vector. */ |
c906108c | 893 | |
c5aa993b JM |
894 | static void |
895 | init_sparclite_ops (void) | |
c906108c | 896 | { |
c5aa993b | 897 | sparclite_ops.to_shortname = "sparclite"; |
43e526b9 JM |
898 | sparclite_ops.to_longname = "SPARClite download target"; |
899 | sparclite_ops.to_doc = "Download to a remote SPARClite target board via serial of UDP.\n\ | |
900 | Specify the device it is connected to (e.g. /dev/ttya)."; | |
c5aa993b JM |
901 | sparclite_ops.to_open = sparclite_open; |
902 | sparclite_ops.to_close = sparclite_close; | |
c5aa993b | 903 | sparclite_ops.to_load = sparclite_download; |
c5aa993b | 904 | sparclite_ops.to_stratum = download_stratum; |
c5aa993b | 905 | sparclite_ops.to_magic = OPS_MAGIC; |
43e526b9 | 906 | } |
c906108c SS |
907 | |
908 | void | |
909 | _initialize_sparcl_tdep () | |
910 | { | |
c5aa993b | 911 | init_sparclite_ops (); |
c906108c SS |
912 | add_target (&sparclite_ops); |
913 | } |