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> | |
31 | #include <unistd.h> | |
32 | #include <sys/socket.h> | |
33 | #include <netinet/in.h> | |
34 | #include <netdb.h> | |
35 | #endif | |
36 | ||
43e526b9 | 37 | static struct target_ops sparclite_ops; |
c906108c SS |
38 | |
39 | static char *remote_target_name = NULL; | |
40 | static serial_t remote_desc = NULL; | |
41 | static int serial_flag; | |
42 | #ifdef HAVE_SOCKETS | |
43 | static int udp_fd = -1; | |
44 | #endif | |
45 | ||
46 | static serial_t open_tty PARAMS ((char *name)); | |
47 | static int send_resp PARAMS ((serial_t desc, char c)); | |
48 | static void close_tty PARAMS ((int ignore)); | |
49 | #ifdef HAVE_SOCKETS | |
50 | static int recv_udp_buf PARAMS ((int fd, unsigned char *buf, int len, int timeout)); | |
51 | static int send_udp_buf PARAMS ((int fd, unsigned char *buf, int len)); | |
52 | #endif | |
53 | static void sparclite_open PARAMS ((char *name, int from_tty)); | |
54 | static void sparclite_close PARAMS ((int quitting)); | |
55 | static void download PARAMS ((char *target_name, char *args, int from_tty, | |
c5aa993b JM |
56 | void (*write_routine) (bfd * from_bfd, |
57 | asection * from_sec, | |
c906108c | 58 | file_ptr from_addr, |
c5aa993b | 59 | bfd_vma to_addr, int len), |
c906108c SS |
60 | void (*start_routine) (bfd_vma entry))); |
61 | static void sparclite_serial_start PARAMS ((bfd_vma entry)); | |
c5aa993b | 62 | static void sparclite_serial_write PARAMS ((bfd * from_bfd, asection * from_sec, |
c906108c SS |
63 | file_ptr from_addr, |
64 | bfd_vma to_addr, int len)); | |
65 | #ifdef HAVE_SOCKETS | |
66 | static unsigned short calc_checksum PARAMS ((unsigned char *buffer, | |
67 | int count)); | |
68 | static void sparclite_udp_start PARAMS ((bfd_vma entry)); | |
c5aa993b | 69 | static void sparclite_udp_write PARAMS ((bfd * from_bfd, asection * from_sec, |
c906108c SS |
70 | file_ptr from_addr, bfd_vma to_addr, |
71 | int len)); | |
72 | #endif | |
73 | static void sparclite_download PARAMS ((char *filename, int from_tty)); | |
74 | ||
75 | #define DDA2_SUP_ASI 0xb000000 | |
76 | #define DDA1_SUP_ASI 0xb0000 | |
77 | ||
78 | #define DDA2_ASI_MASK 0xff000000 | |
c5aa993b | 79 | #define DDA1_ASI_MASK 0xff0000 |
c906108c SS |
80 | #define DIA2_SUP_MODE 0x8000 |
81 | #define DIA1_SUP_MODE 0x4000 | |
82 | #define DDA2_ENABLE 0x100 | |
83 | #define DDA1_ENABLE 0x80 | |
84 | #define DIA2_ENABLE 0x40 | |
85 | #define DIA1_ENABLE 0x20 | |
c5aa993b | 86 | #define DSINGLE_STEP 0x10 /* not used */ |
c906108c SS |
87 | #define DDV_TYPE_MASK 0xc |
88 | #define DDV_TYPE_LOAD 0x0 | |
89 | #define DDV_TYPE_STORE 0x4 | |
90 | #define DDV_TYPE_ACCESS 0x8 | |
91 | #define DDV_TYPE_ALWAYS 0xc | |
92 | #define DDV_COND 0x2 | |
93 | #define DDV_MASK 0x1 | |
94 | ||
95 | int | |
96 | sparclite_insert_watchpoint (addr, len, type) | |
97 | CORE_ADDR addr; | |
98 | int len; | |
99 | int type; | |
100 | { | |
101 | CORE_ADDR dcr; | |
102 | ||
103 | dcr = read_register (DCR_REGNUM); | |
104 | ||
105 | if (!(dcr & DDA1_ENABLE)) | |
106 | { | |
107 | write_register (DDA1_REGNUM, addr); | |
108 | dcr &= ~(DDA1_ASI_MASK | DDV_TYPE_MASK); | |
109 | dcr |= (DDA1_SUP_ASI | DDA1_ENABLE); | |
110 | if (type == 1) | |
111 | { | |
112 | write_register (DDV1_REGNUM, 0); | |
113 | write_register (DDV2_REGNUM, 0xffffffff); | |
114 | dcr |= (DDV_TYPE_LOAD & (~DDV_COND & ~DDV_MASK)); | |
c5aa993b | 115 | } |
c906108c SS |
116 | else if (type == 0) |
117 | { | |
118 | write_register (DDV1_REGNUM, 0); | |
119 | write_register (DDV2_REGNUM, 0xffffffff); | |
120 | dcr |= (DDV_TYPE_STORE & (~DDV_COND & ~DDV_MASK)); | |
121 | } | |
122 | else | |
123 | { | |
124 | write_register (DDV1_REGNUM, 0); | |
125 | write_register (DDV2_REGNUM, 0xffffffff); | |
126 | dcr |= (DDV_TYPE_ACCESS); | |
127 | } | |
128 | write_register (DCR_REGNUM, dcr); | |
129 | } | |
130 | else if (!(dcr & DDA2_ENABLE)) | |
131 | { | |
132 | write_register (DDA2_REGNUM, addr); | |
133 | dcr &= ~(DDA2_ASI_MASK & DDV_TYPE_MASK); | |
134 | dcr |= (DDA2_SUP_ASI | DDA2_ENABLE); | |
135 | if (type == 1) | |
136 | { | |
137 | write_register (DDV1_REGNUM, 0); | |
138 | write_register (DDV2_REGNUM, 0xffffffff); | |
139 | dcr |= (DDV_TYPE_LOAD & ~DDV_COND & ~DDV_MASK); | |
140 | } | |
141 | else if (type == 0) | |
142 | { | |
143 | write_register (DDV1_REGNUM, 0); | |
144 | write_register (DDV2_REGNUM, 0xffffffff); | |
145 | dcr |= (DDV_TYPE_STORE & ~DDV_COND & ~DDV_MASK); | |
146 | } | |
147 | else | |
148 | { | |
149 | write_register (DDV1_REGNUM, 0); | |
150 | write_register (DDV2_REGNUM, 0xffffffff); | |
151 | dcr |= (DDV_TYPE_ACCESS); | |
152 | } | |
153 | write_register (DCR_REGNUM, dcr); | |
154 | } | |
155 | else | |
156 | return -1; | |
157 | ||
158 | return 0; | |
c5aa993b | 159 | } |
c906108c SS |
160 | |
161 | int | |
162 | sparclite_remove_watchpoint (addr, len, type) | |
163 | CORE_ADDR addr; | |
164 | int len; | |
165 | int type; | |
166 | { | |
167 | CORE_ADDR dcr, dda1, dda2; | |
168 | ||
169 | dcr = read_register (DCR_REGNUM); | |
170 | dda1 = read_register (DDA1_REGNUM); | |
171 | dda2 = read_register (DDA2_REGNUM); | |
172 | ||
173 | if ((dcr & DDA1_ENABLE) && addr == dda1) | |
174 | write_register (DCR_REGNUM, (dcr & ~DDA1_ENABLE)); | |
175 | else if ((dcr & DDA2_ENABLE) && addr == dda2) | |
176 | write_register (DCR_REGNUM, (dcr & ~DDA2_ENABLE)); | |
177 | else | |
178 | return -1; | |
179 | ||
180 | return 0; | |
181 | } | |
182 | ||
183 | int | |
184 | sparclite_insert_hw_breakpoint (addr, len) | |
185 | CORE_ADDR addr; | |
186 | int len; | |
187 | { | |
188 | CORE_ADDR dcr; | |
189 | ||
190 | dcr = read_register (DCR_REGNUM); | |
c5aa993b | 191 | |
c906108c SS |
192 | if (!(dcr & DIA1_ENABLE)) |
193 | { | |
194 | write_register (DIA1_REGNUM, addr); | |
195 | write_register (DCR_REGNUM, (dcr | DIA1_ENABLE | DIA1_SUP_MODE)); | |
196 | } | |
197 | else if (!(dcr & DIA2_ENABLE)) | |
198 | { | |
199 | write_register (DIA2_REGNUM, addr); | |
200 | write_register (DCR_REGNUM, (dcr | DIA2_ENABLE | DIA2_SUP_MODE)); | |
201 | } | |
202 | else | |
203 | return -1; | |
204 | ||
205 | return 0; | |
206 | } | |
207 | ||
208 | int | |
209 | sparclite_remove_hw_breakpoint (addr, shadow) | |
210 | CORE_ADDR addr; | |
211 | int shadow; | |
212 | { | |
213 | CORE_ADDR dcr, dia1, dia2; | |
214 | ||
215 | dcr = read_register (DCR_REGNUM); | |
216 | dia1 = read_register (DIA1_REGNUM); | |
217 | dia2 = read_register (DIA2_REGNUM); | |
c5aa993b | 218 | |
c906108c SS |
219 | if ((dcr & DIA1_ENABLE) && addr == dia1) |
220 | write_register (DCR_REGNUM, (dcr & ~DIA1_ENABLE)); | |
221 | else if ((dcr & DIA2_ENABLE) && addr == dia2) | |
222 | write_register (DCR_REGNUM, (dcr & ~DIA2_ENABLE)); | |
223 | else | |
224 | return -1; | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
229 | int | |
230 | sparclite_check_watch_resources (type, cnt, ot) | |
231 | int type; | |
232 | int cnt; | |
233 | int ot; | |
234 | { | |
235 | /* Watchpoints not supported on simulator. */ | |
236 | if (strcmp (target_shortname, "sim") == 0) | |
237 | return 0; | |
238 | ||
239 | if (type == bp_hardware_breakpoint) | |
240 | { | |
241 | if (TARGET_HW_BREAK_LIMIT == 0) | |
242 | return 0; | |
243 | else if (cnt <= TARGET_HW_BREAK_LIMIT) | |
244 | return 1; | |
245 | } | |
246 | else | |
247 | { | |
248 | if (TARGET_HW_WATCH_LIMIT == 0) | |
249 | return 0; | |
250 | else if (ot) | |
251 | return -1; | |
252 | else if (cnt <= TARGET_HW_WATCH_LIMIT) | |
253 | return 1; | |
254 | } | |
255 | return -1; | |
256 | } | |
257 | ||
258 | CORE_ADDR | |
259 | sparclite_stopped_data_address () | |
260 | { | |
261 | CORE_ADDR dsr, dda1, dda2; | |
262 | ||
263 | dsr = read_register (DSR_REGNUM); | |
264 | dda1 = read_register (DDA1_REGNUM); | |
265 | dda2 = read_register (DDA2_REGNUM); | |
266 | ||
267 | if (dsr & 0x10) | |
268 | return dda1; | |
269 | else if (dsr & 0x20) | |
270 | return dda2; | |
271 | else | |
272 | return 0; | |
273 | } | |
274 | \f | |
275 | static serial_t | |
276 | open_tty (name) | |
277 | char *name; | |
278 | { | |
279 | serial_t desc; | |
280 | ||
281 | desc = SERIAL_OPEN (name); | |
282 | if (!desc) | |
283 | perror_with_name (name); | |
284 | ||
285 | if (baud_rate != -1) | |
286 | { | |
287 | if (SERIAL_SETBAUDRATE (desc, baud_rate)) | |
288 | { | |
289 | SERIAL_CLOSE (desc); | |
290 | perror_with_name (name); | |
291 | } | |
292 | } | |
293 | ||
294 | SERIAL_RAW (desc); | |
295 | ||
296 | SERIAL_FLUSH_INPUT (desc); | |
297 | ||
298 | return desc; | |
299 | } | |
300 | ||
301 | /* Read a single character from the remote end, masking it down to 7 bits. */ | |
302 | ||
303 | static int | |
304 | readchar (desc, timeout) | |
305 | serial_t desc; | |
306 | int timeout; | |
307 | { | |
308 | int ch; | |
309 | char s[10]; | |
310 | ||
311 | ch = SERIAL_READCHAR (desc, timeout); | |
312 | ||
313 | switch (ch) | |
314 | { | |
315 | case SERIAL_EOF: | |
316 | error ("SPARClite remote connection closed"); | |
317 | case SERIAL_ERROR: | |
318 | perror_with_name ("SPARClite communication error"); | |
319 | case SERIAL_TIMEOUT: | |
320 | error ("SPARClite remote timeout"); | |
321 | default: | |
322 | if (remote_debug > 0) | |
323 | { | |
324 | sprintf (s, "[%02x]", ch & 0xff); | |
325 | puts_debug ("read -->", s, "<--"); | |
326 | } | |
327 | return ch; | |
328 | } | |
329 | } | |
330 | ||
331 | static void | |
332 | debug_serial_write (desc, buf, len) | |
333 | serial_t desc; | |
334 | char *buf; | |
335 | int len; | |
336 | { | |
337 | char s[10]; | |
338 | ||
339 | SERIAL_WRITE (desc, buf, len); | |
340 | if (remote_debug > 0) | |
341 | { | |
342 | while (len-- > 0) | |
343 | { | |
344 | sprintf (s, "[%02x]", *buf & 0xff); | |
345 | puts_debug ("Sent -->", s, "<--"); | |
346 | buf++; | |
347 | } | |
348 | } | |
349 | } | |
350 | ||
351 | ||
352 | static int | |
353 | send_resp (desc, c) | |
354 | serial_t desc; | |
355 | char c; | |
356 | { | |
357 | debug_serial_write (desc, &c, 1); | |
358 | return readchar (desc, remote_timeout); | |
359 | } | |
360 | ||
361 | static void | |
362 | close_tty (ignore) | |
363 | int ignore; | |
364 | { | |
365 | if (!remote_desc) | |
366 | return; | |
367 | ||
368 | SERIAL_CLOSE (remote_desc); | |
369 | ||
370 | remote_desc = NULL; | |
371 | } | |
372 | ||
373 | #ifdef HAVE_SOCKETS | |
374 | static int | |
375 | recv_udp_buf (fd, buf, len, timeout) | |
376 | int fd, len; | |
377 | unsigned char *buf; | |
378 | int timeout; | |
379 | { | |
380 | int cc; | |
381 | fd_set readfds; | |
382 | ||
383 | FD_ZERO (&readfds); | |
384 | FD_SET (fd, &readfds); | |
385 | ||
386 | if (timeout >= 0) | |
387 | { | |
388 | struct timeval timebuf; | |
389 | ||
390 | timebuf.tv_sec = timeout; | |
391 | timebuf.tv_usec = 0; | |
392 | cc = select (fd + 1, &readfds, 0, 0, &timebuf); | |
393 | } | |
394 | else | |
395 | cc = select (fd + 1, &readfds, 0, 0, 0); | |
396 | ||
397 | if (cc == 0) | |
398 | return 0; | |
399 | ||
400 | if (cc != 1) | |
401 | perror_with_name ("recv_udp_buf: Bad return value from select:"); | |
402 | ||
403 | cc = recv (fd, buf, len, 0); | |
404 | ||
405 | if (cc < 0) | |
406 | perror_with_name ("Got an error from recv: "); | |
407 | } | |
408 | ||
409 | static int | |
410 | send_udp_buf (fd, buf, len) | |
411 | int fd, len; | |
412 | unsigned char *buf; | |
413 | { | |
414 | int cc; | |
415 | ||
416 | cc = send (fd, buf, len, 0); | |
417 | ||
418 | if (cc == len) | |
419 | return; | |
420 | ||
421 | if (cc < 0) | |
422 | perror_with_name ("Got an error from send: "); | |
423 | ||
424 | error ("Short count in send: tried %d, sent %d\n", len, cc); | |
425 | } | |
426 | #endif /* HAVE_SOCKETS */ | |
427 | ||
428 | static void | |
429 | sparclite_open (name, from_tty) | |
430 | char *name; | |
431 | int from_tty; | |
432 | { | |
433 | struct cleanup *old_chain; | |
434 | int c; | |
435 | char *p; | |
436 | ||
437 | if (!name) | |
438 | error ("You need to specify what device or hostname is associated with the SparcLite board."); | |
439 | ||
440 | target_preopen (from_tty); | |
441 | ||
442 | unpush_target (&sparclite_ops); | |
443 | ||
444 | if (remote_target_name) | |
445 | free (remote_target_name); | |
446 | ||
447 | remote_target_name = strsave (name); | |
448 | ||
449 | /* We need a 'serial' or 'udp' keyword to disambiguate host:port, which can | |
450 | mean either a serial port on a terminal server, or the IP address of a | |
451 | SPARClite demo board. If there's no colon, then it pretty much has to be | |
452 | a local device (except for DOS... grrmble) */ | |
453 | ||
454 | p = strchr (name, ' '); | |
455 | ||
456 | if (p) | |
457 | { | |
458 | *p++ = '\000'; | |
c5aa993b JM |
459 | while ((*p != '\000') && isspace (*p)) |
460 | p++; | |
c906108c SS |
461 | |
462 | if (strncmp (name, "serial", strlen (name)) == 0) | |
463 | serial_flag = 1; | |
464 | else if (strncmp (name, "udp", strlen (name)) == 0) | |
465 | serial_flag = 0; | |
466 | else | |
467 | error ("Must specify either `serial' or `udp'."); | |
468 | } | |
469 | else | |
470 | { | |
471 | p = name; | |
472 | ||
473 | if (!strchr (name, ':')) | |
474 | serial_flag = 1; /* No colon is unambiguous (local device) */ | |
475 | else | |
476 | error ("Usage: target sparclite serial /dev/ttyb\n\ | |
477 | or: target sparclite udp host"); | |
478 | } | |
479 | ||
480 | if (serial_flag) | |
481 | { | |
482 | remote_desc = open_tty (p); | |
483 | ||
484 | old_chain = make_cleanup ((make_cleanup_func) close_tty, 0); | |
485 | ||
486 | c = send_resp (remote_desc, 0x00); | |
487 | ||
488 | if (c != 0xaa) | |
489 | error ("Unknown response (0x%x) from SparcLite. Try resetting the board.", | |
490 | c); | |
491 | ||
492 | c = send_resp (remote_desc, 0x55); | |
493 | ||
494 | if (c != 0x55) | |
495 | error ("Sparclite appears to be ill."); | |
496 | } | |
497 | else | |
498 | { | |
499 | #ifdef HAVE_SOCKETS | |
500 | struct hostent *he; | |
501 | struct sockaddr_in sockaddr; | |
502 | unsigned char buffer[100]; | |
503 | int cc; | |
504 | ||
505 | /* Setup the socket. Must be raw UDP. */ | |
506 | ||
507 | he = gethostbyname (p); | |
508 | ||
509 | if (!he) | |
510 | error ("No such host %s.", p); | |
511 | ||
512 | udp_fd = socket (PF_INET, SOCK_DGRAM, 0); | |
513 | ||
514 | old_chain = make_cleanup (close, udp_fd); | |
515 | ||
516 | sockaddr.sin_family = PF_INET; | |
c5aa993b | 517 | sockaddr.sin_port = htons (7000); |
c906108c SS |
518 | memcpy (&sockaddr.sin_addr.s_addr, he->h_addr, sizeof (struct in_addr)); |
519 | ||
c5aa993b | 520 | if (connect (udp_fd, &sockaddr, sizeof (sockaddr))) |
c906108c SS |
521 | perror_with_name ("Connect failed"); |
522 | ||
523 | buffer[0] = 0x5; | |
524 | buffer[1] = 0; | |
525 | ||
c5aa993b JM |
526 | send_udp_buf (udp_fd, buffer, 2); /* Request version */ |
527 | cc = recv_udp_buf (udp_fd, buffer, sizeof (buffer), 5); /* Get response */ | |
c906108c SS |
528 | if (cc == 0) |
529 | error ("SPARClite isn't responding."); | |
530 | ||
531 | if (cc < 3) | |
532 | error ("SPARClite appears to be ill."); | |
533 | #else | |
534 | error ("UDP downloading is not supported for DOS hosts."); | |
535 | #endif /* HAVE_SOCKETS */ | |
536 | } | |
537 | ||
538 | printf_unfiltered ("[SPARClite appears to be alive]\n"); | |
539 | ||
540 | push_target (&sparclite_ops); | |
541 | ||
542 | discard_cleanups (old_chain); | |
543 | ||
544 | return; | |
545 | } | |
546 | ||
547 | static void | |
548 | sparclite_close (quitting) | |
549 | int quitting; | |
550 | { | |
551 | if (serial_flag) | |
552 | close_tty (0); | |
553 | #ifdef HAVE_SOCKETS | |
c5aa993b JM |
554 | else if (udp_fd != -1) |
555 | close (udp_fd); | |
c906108c SS |
556 | #endif |
557 | } | |
558 | ||
559 | #define LOAD_ADDRESS 0x40000000 | |
560 | ||
561 | static void | |
562 | download (target_name, args, from_tty, write_routine, start_routine) | |
563 | char *target_name; | |
564 | char *args; | |
565 | int from_tty; | |
c5aa993b JM |
566 | void (*write_routine) PARAMS ((bfd * from_bfd, asection * from_sec, |
567 | file_ptr from_addr, bfd_vma to_addr, int len)); | |
c906108c SS |
568 | void (*start_routine) PARAMS ((bfd_vma entry)); |
569 | { | |
570 | struct cleanup *old_chain; | |
571 | asection *section; | |
572 | bfd *pbfd; | |
573 | bfd_vma entry; | |
574 | int i; | |
575 | #define WRITESIZE 1024 | |
576 | char *filename; | |
577 | int quiet; | |
578 | int nostart; | |
579 | ||
580 | quiet = 0; | |
581 | nostart = 0; | |
582 | filename = NULL; | |
583 | ||
584 | while (*args != '\000') | |
585 | { | |
586 | char *arg; | |
587 | ||
c5aa993b JM |
588 | while (isspace (*args)) |
589 | args++; | |
c906108c SS |
590 | |
591 | arg = args; | |
592 | ||
c5aa993b JM |
593 | while ((*args != '\000') && !isspace (*args)) |
594 | args++; | |
c906108c SS |
595 | |
596 | if (*args != '\000') | |
597 | *args++ = '\000'; | |
598 | ||
599 | if (*arg != '-') | |
600 | filename = arg; | |
601 | else if (strncmp (arg, "-quiet", strlen (arg)) == 0) | |
602 | quiet = 1; | |
603 | else if (strncmp (arg, "-nostart", strlen (arg)) == 0) | |
604 | nostart = 1; | |
605 | else | |
606 | error ("unknown option `%s'", arg); | |
607 | } | |
608 | ||
609 | if (!filename) | |
610 | filename = get_exec_file (1); | |
611 | ||
612 | pbfd = bfd_openr (filename, gnutarget); | |
613 | if (pbfd == NULL) | |
614 | { | |
615 | perror_with_name (filename); | |
616 | return; | |
617 | } | |
618 | old_chain = make_cleanup ((make_cleanup_func) bfd_close, pbfd); | |
619 | ||
c5aa993b | 620 | if (!bfd_check_format (pbfd, bfd_object)) |
c906108c SS |
621 | error ("\"%s\" is not an object file: %s", filename, |
622 | bfd_errmsg (bfd_get_error ())); | |
623 | ||
c5aa993b | 624 | for (section = pbfd->sections; section; section = section->next) |
c906108c SS |
625 | { |
626 | if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) | |
627 | { | |
c5aa993b | 628 | bfd_vma section_address; |
c906108c | 629 | bfd_size_type section_size; |
c5aa993b JM |
630 | file_ptr fptr; |
631 | const char *section_name; | |
c906108c | 632 | |
c5aa993b | 633 | section_name = bfd_get_section_name (pbfd, section); |
c906108c SS |
634 | |
635 | section_address = bfd_get_section_vma (pbfd, section); | |
636 | ||
637 | /* Adjust sections from a.out files, since they don't | |
638 | carry their addresses with. */ | |
639 | if (bfd_get_flavour (pbfd) == bfd_target_aout_flavour) | |
640 | { | |
641 | if (strcmp (section_name, ".text") == 0) | |
642 | section_address = bfd_get_start_address (pbfd); | |
643 | else if (strcmp (section_name, ".data") == 0) | |
644 | { | |
645 | /* Read the first 8 bytes of the data section. | |
646 | There should be the string 'DaTa' followed by | |
647 | a word containing the actual section address. */ | |
648 | struct data_marker | |
c5aa993b JM |
649 | { |
650 | char signature[4]; /* 'DaTa' */ | |
651 | unsigned char sdata[4]; /* &sdata */ | |
652 | } | |
653 | marker; | |
c906108c SS |
654 | bfd_get_section_contents (pbfd, section, &marker, 0, |
655 | sizeof (marker)); | |
656 | if (strncmp (marker.signature, "DaTa", 4) == 0) | |
657 | { | |
658 | if (TARGET_BYTE_ORDER == BIG_ENDIAN) | |
659 | section_address = bfd_getb32 (marker.sdata); | |
660 | else | |
661 | section_address = bfd_getl32 (marker.sdata); | |
662 | } | |
663 | } | |
664 | } | |
665 | ||
666 | section_size = bfd_get_section_size_before_reloc (section); | |
667 | ||
668 | if (!quiet) | |
669 | printf_filtered ("[Loading section %s at 0x%x (%d bytes)]\n", | |
670 | bfd_get_section_name (pbfd, section), | |
671 | section_address, | |
672 | section_size); | |
673 | ||
674 | fptr = 0; | |
675 | while (section_size > 0) | |
676 | { | |
677 | int count; | |
678 | static char inds[] = "|/-\\"; | |
679 | static int k = 0; | |
680 | ||
681 | QUIT; | |
682 | ||
683 | count = min (section_size, WRITESIZE); | |
684 | ||
685 | write_routine (pbfd, section, fptr, section_address, count); | |
686 | ||
687 | if (!quiet) | |
688 | { | |
689 | printf_unfiltered ("\r%c", inds[k++ % 4]); | |
690 | gdb_flush (gdb_stdout); | |
691 | } | |
692 | ||
693 | section_address += count; | |
694 | fptr += count; | |
695 | section_size -= count; | |
696 | } | |
697 | } | |
698 | } | |
699 | ||
700 | if (!nostart) | |
701 | { | |
702 | entry = bfd_get_start_address (pbfd); | |
703 | ||
704 | if (!quiet) | |
705 | printf_unfiltered ("[Starting %s at 0x%x]\n", filename, entry); | |
706 | ||
707 | start_routine (entry); | |
708 | } | |
709 | ||
710 | do_cleanups (old_chain); | |
711 | } | |
712 | ||
713 | static void | |
714 | sparclite_serial_start (entry) | |
715 | bfd_vma entry; | |
716 | { | |
717 | char buffer[5]; | |
718 | int i; | |
719 | ||
720 | buffer[0] = 0x03; | |
721 | store_unsigned_integer (buffer + 1, 4, entry); | |
722 | ||
723 | debug_serial_write (remote_desc, buffer, 1 + 4); | |
724 | i = readchar (remote_desc, remote_timeout); | |
725 | if (i != 0x55) | |
726 | error ("Can't start SparcLite. Error code %d\n", i); | |
727 | } | |
728 | ||
729 | static void | |
730 | sparclite_serial_write (from_bfd, from_sec, from_addr, to_addr, len) | |
731 | bfd *from_bfd; | |
732 | asection *from_sec; | |
733 | file_ptr from_addr; | |
734 | bfd_vma to_addr; | |
735 | int len; | |
736 | { | |
c5aa993b | 737 | char buffer[4 + 4 + WRITESIZE]; /* addr + len + data */ |
c906108c SS |
738 | unsigned char checksum; |
739 | int i; | |
740 | ||
c5aa993b JM |
741 | store_unsigned_integer (buffer, 4, to_addr); /* Address */ |
742 | store_unsigned_integer (buffer + 4, 4, len); /* Length */ | |
c906108c SS |
743 | |
744 | bfd_get_section_contents (from_bfd, from_sec, buffer + 8, from_addr, len); | |
745 | ||
746 | checksum = 0; | |
747 | for (i = 0; i < len; i++) | |
748 | checksum += buffer[8 + i]; | |
749 | ||
750 | i = send_resp (remote_desc, 0x01); | |
751 | ||
752 | if (i != 0x5a) | |
753 | error ("Bad response from load command (0x%x)", i); | |
754 | ||
755 | debug_serial_write (remote_desc, buffer, 4 + 4 + len); | |
756 | i = readchar (remote_desc, remote_timeout); | |
757 | ||
758 | if (i != checksum) | |
759 | error ("Bad checksum from load command (0x%x)", i); | |
760 | } | |
761 | ||
762 | #ifdef HAVE_SOCKETS | |
763 | ||
764 | static unsigned short | |
765 | calc_checksum (buffer, count) | |
766 | unsigned char *buffer; | |
767 | int count; | |
768 | { | |
769 | unsigned short checksum; | |
770 | ||
771 | checksum = 0; | |
772 | for (; count > 0; count -= 2, buffer += 2) | |
773 | checksum += (*buffer << 8) | *(buffer + 1); | |
774 | ||
775 | if (count != 0) | |
776 | checksum += *buffer << 8; | |
777 | ||
778 | return checksum; | |
779 | } | |
780 | ||
781 | static void | |
782 | sparclite_udp_start (entry) | |
783 | bfd_vma entry; | |
784 | { | |
785 | unsigned char buffer[6]; | |
786 | int i; | |
787 | ||
788 | buffer[0] = 0x3; | |
789 | buffer[1] = 0; | |
790 | buffer[2] = entry >> 24; | |
791 | buffer[3] = entry >> 16; | |
792 | buffer[4] = entry >> 8; | |
793 | buffer[5] = entry; | |
794 | ||
c5aa993b JM |
795 | send_udp_buf (udp_fd, buffer, 6); /* Send start addr */ |
796 | i = recv_udp_buf (udp_fd, buffer, sizeof (buffer), -1); /* Get response */ | |
c906108c SS |
797 | |
798 | if (i < 1 || buffer[0] != 0x55) | |
799 | error ("Failed to take start address."); | |
800 | } | |
801 | ||
802 | static void | |
803 | sparclite_udp_write (from_bfd, from_sec, from_addr, to_addr, len) | |
804 | bfd *from_bfd; | |
805 | asection *from_sec; | |
806 | file_ptr from_addr; | |
807 | bfd_vma to_addr; | |
808 | int len; | |
809 | { | |
810 | unsigned char buffer[2000]; | |
811 | unsigned short checksum; | |
812 | static int pkt_num = 0; | |
813 | static unsigned long old_addr = -1; | |
814 | int i; | |
815 | ||
816 | while (1) | |
817 | { | |
818 | if (to_addr != old_addr) | |
819 | { | |
820 | buffer[0] = 0x1; /* Load command */ | |
821 | buffer[1] = 0x1; /* Loading address */ | |
822 | buffer[2] = to_addr >> 24; | |
823 | buffer[3] = to_addr >> 16; | |
824 | buffer[4] = to_addr >> 8; | |
825 | buffer[5] = to_addr; | |
826 | ||
827 | checksum = 0; | |
828 | for (i = 0; i < 6; i++) | |
829 | checksum += buffer[i]; | |
830 | checksum &= 0xff; | |
831 | ||
832 | send_udp_buf (udp_fd, buffer, 6); | |
833 | i = recv_udp_buf (udp_fd, buffer, sizeof buffer, -1); | |
834 | ||
835 | if (i < 1) | |
836 | error ("Got back short checksum for load addr."); | |
837 | ||
838 | if (checksum != buffer[0]) | |
839 | error ("Got back bad checksum for load addr."); | |
840 | ||
841 | pkt_num = 0; /* Load addr resets packet seq # */ | |
842 | old_addr = to_addr; | |
843 | } | |
844 | ||
845 | bfd_get_section_contents (from_bfd, from_sec, buffer + 6, from_addr, | |
846 | len); | |
847 | ||
848 | checksum = calc_checksum (buffer + 6, len); | |
849 | ||
850 | buffer[0] = 0x1; /* Load command */ | |
851 | buffer[1] = 0x2; /* Loading data */ | |
852 | buffer[2] = pkt_num >> 8; | |
853 | buffer[3] = pkt_num; | |
854 | buffer[4] = checksum >> 8; | |
855 | buffer[5] = checksum; | |
856 | ||
857 | send_udp_buf (udp_fd, buffer, len + 6); | |
858 | i = recv_udp_buf (udp_fd, buffer, sizeof buffer, 3); | |
859 | ||
860 | if (i == 0) | |
861 | { | |
862 | fprintf_unfiltered (gdb_stderr, "send_data: timeout sending %d bytes to address 0x%x retrying\n", len, to_addr); | |
863 | continue; | |
864 | } | |
865 | ||
866 | if (buffer[0] != 0xff) | |
867 | error ("Got back bad response for load data."); | |
868 | ||
869 | old_addr += len; | |
870 | pkt_num++; | |
871 | ||
872 | return; | |
873 | } | |
874 | } | |
875 | ||
876 | #endif /* HAVE_SOCKETS */ | |
877 | ||
878 | static void | |
879 | sparclite_download (filename, from_tty) | |
880 | char *filename; | |
881 | int from_tty; | |
882 | { | |
883 | if (!serial_flag) | |
884 | #ifdef HAVE_SOCKETS | |
885 | download (remote_target_name, filename, from_tty, sparclite_udp_write, | |
886 | sparclite_udp_start); | |
887 | #else | |
888 | abort (); /* sparclite_open should prevent this! */ | |
889 | #endif | |
890 | else | |
891 | download (remote_target_name, filename, from_tty, sparclite_serial_write, | |
892 | sparclite_serial_start); | |
893 | } | |
894 | \f | |
43e526b9 | 895 | /* Set up the sparclite target vector. */ |
c906108c | 896 | |
c5aa993b JM |
897 | static void |
898 | init_sparclite_ops (void) | |
c906108c | 899 | { |
c5aa993b | 900 | sparclite_ops.to_shortname = "sparclite"; |
43e526b9 JM |
901 | sparclite_ops.to_longname = "SPARClite download target"; |
902 | sparclite_ops.to_doc = "Download to a remote SPARClite target board via serial of UDP.\n\ | |
903 | Specify the device it is connected to (e.g. /dev/ttya)."; | |
c5aa993b JM |
904 | sparclite_ops.to_open = sparclite_open; |
905 | sparclite_ops.to_close = sparclite_close; | |
c5aa993b | 906 | sparclite_ops.to_load = sparclite_download; |
c5aa993b | 907 | sparclite_ops.to_stratum = download_stratum; |
c5aa993b | 908 | sparclite_ops.to_magic = OPS_MAGIC; |
43e526b9 | 909 | } |
c906108c SS |
910 | |
911 | void | |
912 | _initialize_sparcl_tdep () | |
913 | { | |
c5aa993b | 914 | init_sparclite_ops (); |
c906108c SS |
915 | add_target (&sparclite_ops); |
916 | } |