Commit | Line | Data |
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c906108c | 1 | /* Target dependent code for the Fujitsu SPARClite for GDB, the GNU debugger. |
43ff13b4 | 2 | Copyright 1994, 1995, 1996, 1999 Free Software Foundation, Inc. |
c906108c SS |
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "gdbcore.h" | |
22 | #include "breakpoint.h" | |
23 | #include "target.h" | |
24 | #include "serial.h" | |
25 | #include <sys/types.h> | |
26 | ||
43ff13b4 JM |
27 | #ifdef HAVE_SYS_SELECT_H |
28 | #include <sys/select.h> | |
29 | #endif | |
30 | ||
c906108c SS |
31 | #if (!defined(__GO32__) && !defined(_WIN32)) || defined(__CYGWIN32__) |
32 | #define HAVE_SOCKETS | |
33 | #include <sys/time.h> | |
34 | #include <unistd.h> | |
35 | #include <sys/socket.h> | |
36 | #include <netinet/in.h> | |
37 | #include <netdb.h> | |
38 | #endif | |
39 | ||
40 | extern struct target_ops sparclite_ops; /* Forward decl */ | |
41 | extern struct target_ops remote_ops; | |
42 | ||
43 | static char *remote_target_name = NULL; | |
44 | static serial_t remote_desc = NULL; | |
45 | static int serial_flag; | |
46 | #ifdef HAVE_SOCKETS | |
47 | static int udp_fd = -1; | |
48 | #endif | |
49 | ||
50 | static serial_t open_tty PARAMS ((char *name)); | |
51 | static int send_resp PARAMS ((serial_t desc, char c)); | |
52 | static void close_tty PARAMS ((int ignore)); | |
53 | #ifdef HAVE_SOCKETS | |
54 | static int recv_udp_buf PARAMS ((int fd, unsigned char *buf, int len, int timeout)); | |
55 | static int send_udp_buf PARAMS ((int fd, unsigned char *buf, int len)); | |
56 | #endif | |
57 | static void sparclite_open PARAMS ((char *name, int from_tty)); | |
58 | static void sparclite_close PARAMS ((int quitting)); | |
59 | static void download PARAMS ((char *target_name, char *args, int from_tty, | |
60 | void (*write_routine) (bfd *from_bfd, | |
61 | asection *from_sec, | |
62 | file_ptr from_addr, | |
63 | bfd_vma to_addr, int len), | |
64 | void (*start_routine) (bfd_vma entry))); | |
65 | static void sparclite_serial_start PARAMS ((bfd_vma entry)); | |
66 | static void sparclite_serial_write PARAMS ((bfd *from_bfd, asection *from_sec, | |
67 | file_ptr from_addr, | |
68 | bfd_vma to_addr, int len)); | |
69 | #ifdef HAVE_SOCKETS | |
70 | static unsigned short calc_checksum PARAMS ((unsigned char *buffer, | |
71 | int count)); | |
72 | static void sparclite_udp_start PARAMS ((bfd_vma entry)); | |
73 | static void sparclite_udp_write PARAMS ((bfd *from_bfd, asection *from_sec, | |
74 | file_ptr from_addr, bfd_vma to_addr, | |
75 | int len)); | |
76 | #endif | |
77 | static void sparclite_download PARAMS ((char *filename, int from_tty)); | |
78 | ||
79 | #define DDA2_SUP_ASI 0xb000000 | |
80 | #define DDA1_SUP_ASI 0xb0000 | |
81 | ||
82 | #define DDA2_ASI_MASK 0xff000000 | |
83 | #define DDA1_ASI_MASK 0xff0000 | |
84 | #define DIA2_SUP_MODE 0x8000 | |
85 | #define DIA1_SUP_MODE 0x4000 | |
86 | #define DDA2_ENABLE 0x100 | |
87 | #define DDA1_ENABLE 0x80 | |
88 | #define DIA2_ENABLE 0x40 | |
89 | #define DIA1_ENABLE 0x20 | |
90 | #define DSINGLE_STEP 0x10 /* not used */ | |
91 | #define DDV_TYPE_MASK 0xc | |
92 | #define DDV_TYPE_LOAD 0x0 | |
93 | #define DDV_TYPE_STORE 0x4 | |
94 | #define DDV_TYPE_ACCESS 0x8 | |
95 | #define DDV_TYPE_ALWAYS 0xc | |
96 | #define DDV_COND 0x2 | |
97 | #define DDV_MASK 0x1 | |
98 | ||
99 | int | |
100 | sparclite_insert_watchpoint (addr, len, type) | |
101 | CORE_ADDR addr; | |
102 | int len; | |
103 | int type; | |
104 | { | |
105 | CORE_ADDR dcr; | |
106 | ||
107 | dcr = read_register (DCR_REGNUM); | |
108 | ||
109 | if (!(dcr & DDA1_ENABLE)) | |
110 | { | |
111 | write_register (DDA1_REGNUM, addr); | |
112 | dcr &= ~(DDA1_ASI_MASK | DDV_TYPE_MASK); | |
113 | dcr |= (DDA1_SUP_ASI | DDA1_ENABLE); | |
114 | if (type == 1) | |
115 | { | |
116 | write_register (DDV1_REGNUM, 0); | |
117 | write_register (DDV2_REGNUM, 0xffffffff); | |
118 | dcr |= (DDV_TYPE_LOAD & (~DDV_COND & ~DDV_MASK)); | |
119 | } | |
120 | else if (type == 0) | |
121 | { | |
122 | write_register (DDV1_REGNUM, 0); | |
123 | write_register (DDV2_REGNUM, 0xffffffff); | |
124 | dcr |= (DDV_TYPE_STORE & (~DDV_COND & ~DDV_MASK)); | |
125 | } | |
126 | else | |
127 | { | |
128 | write_register (DDV1_REGNUM, 0); | |
129 | write_register (DDV2_REGNUM, 0xffffffff); | |
130 | dcr |= (DDV_TYPE_ACCESS); | |
131 | } | |
132 | write_register (DCR_REGNUM, dcr); | |
133 | } | |
134 | else if (!(dcr & DDA2_ENABLE)) | |
135 | { | |
136 | write_register (DDA2_REGNUM, addr); | |
137 | dcr &= ~(DDA2_ASI_MASK & DDV_TYPE_MASK); | |
138 | dcr |= (DDA2_SUP_ASI | DDA2_ENABLE); | |
139 | if (type == 1) | |
140 | { | |
141 | write_register (DDV1_REGNUM, 0); | |
142 | write_register (DDV2_REGNUM, 0xffffffff); | |
143 | dcr |= (DDV_TYPE_LOAD & ~DDV_COND & ~DDV_MASK); | |
144 | } | |
145 | else if (type == 0) | |
146 | { | |
147 | write_register (DDV1_REGNUM, 0); | |
148 | write_register (DDV2_REGNUM, 0xffffffff); | |
149 | dcr |= (DDV_TYPE_STORE & ~DDV_COND & ~DDV_MASK); | |
150 | } | |
151 | else | |
152 | { | |
153 | write_register (DDV1_REGNUM, 0); | |
154 | write_register (DDV2_REGNUM, 0xffffffff); | |
155 | dcr |= (DDV_TYPE_ACCESS); | |
156 | } | |
157 | write_register (DCR_REGNUM, dcr); | |
158 | } | |
159 | else | |
160 | return -1; | |
161 | ||
162 | return 0; | |
163 | } | |
164 | ||
165 | int | |
166 | sparclite_remove_watchpoint (addr, len, type) | |
167 | CORE_ADDR addr; | |
168 | int len; | |
169 | int type; | |
170 | { | |
171 | CORE_ADDR dcr, dda1, dda2; | |
172 | ||
173 | dcr = read_register (DCR_REGNUM); | |
174 | dda1 = read_register (DDA1_REGNUM); | |
175 | dda2 = read_register (DDA2_REGNUM); | |
176 | ||
177 | if ((dcr & DDA1_ENABLE) && addr == dda1) | |
178 | write_register (DCR_REGNUM, (dcr & ~DDA1_ENABLE)); | |
179 | else if ((dcr & DDA2_ENABLE) && addr == dda2) | |
180 | write_register (DCR_REGNUM, (dcr & ~DDA2_ENABLE)); | |
181 | else | |
182 | return -1; | |
183 | ||
184 | return 0; | |
185 | } | |
186 | ||
187 | int | |
188 | sparclite_insert_hw_breakpoint (addr, len) | |
189 | CORE_ADDR addr; | |
190 | int len; | |
191 | { | |
192 | CORE_ADDR dcr; | |
193 | ||
194 | dcr = read_register (DCR_REGNUM); | |
195 | ||
196 | if (!(dcr & DIA1_ENABLE)) | |
197 | { | |
198 | write_register (DIA1_REGNUM, addr); | |
199 | write_register (DCR_REGNUM, (dcr | DIA1_ENABLE | DIA1_SUP_MODE)); | |
200 | } | |
201 | else if (!(dcr & DIA2_ENABLE)) | |
202 | { | |
203 | write_register (DIA2_REGNUM, addr); | |
204 | write_register (DCR_REGNUM, (dcr | DIA2_ENABLE | DIA2_SUP_MODE)); | |
205 | } | |
206 | else | |
207 | return -1; | |
208 | ||
209 | return 0; | |
210 | } | |
211 | ||
212 | int | |
213 | sparclite_remove_hw_breakpoint (addr, shadow) | |
214 | CORE_ADDR addr; | |
215 | int shadow; | |
216 | { | |
217 | CORE_ADDR dcr, dia1, dia2; | |
218 | ||
219 | dcr = read_register (DCR_REGNUM); | |
220 | dia1 = read_register (DIA1_REGNUM); | |
221 | dia2 = read_register (DIA2_REGNUM); | |
222 | ||
223 | if ((dcr & DIA1_ENABLE) && addr == dia1) | |
224 | write_register (DCR_REGNUM, (dcr & ~DIA1_ENABLE)); | |
225 | else if ((dcr & DIA2_ENABLE) && addr == dia2) | |
226 | write_register (DCR_REGNUM, (dcr & ~DIA2_ENABLE)); | |
227 | else | |
228 | return -1; | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | int | |
234 | sparclite_check_watch_resources (type, cnt, ot) | |
235 | int type; | |
236 | int cnt; | |
237 | int ot; | |
238 | { | |
239 | /* Watchpoints not supported on simulator. */ | |
240 | if (strcmp (target_shortname, "sim") == 0) | |
241 | return 0; | |
242 | ||
243 | if (type == bp_hardware_breakpoint) | |
244 | { | |
245 | if (TARGET_HW_BREAK_LIMIT == 0) | |
246 | return 0; | |
247 | else if (cnt <= TARGET_HW_BREAK_LIMIT) | |
248 | return 1; | |
249 | } | |
250 | else | |
251 | { | |
252 | if (TARGET_HW_WATCH_LIMIT == 0) | |
253 | return 0; | |
254 | else if (ot) | |
255 | return -1; | |
256 | else if (cnt <= TARGET_HW_WATCH_LIMIT) | |
257 | return 1; | |
258 | } | |
259 | return -1; | |
260 | } | |
261 | ||
262 | CORE_ADDR | |
263 | sparclite_stopped_data_address () | |
264 | { | |
265 | CORE_ADDR dsr, dda1, dda2; | |
266 | ||
267 | dsr = read_register (DSR_REGNUM); | |
268 | dda1 = read_register (DDA1_REGNUM); | |
269 | dda2 = read_register (DDA2_REGNUM); | |
270 | ||
271 | if (dsr & 0x10) | |
272 | return dda1; | |
273 | else if (dsr & 0x20) | |
274 | return dda2; | |
275 | else | |
276 | return 0; | |
277 | } | |
278 | \f | |
279 | static serial_t | |
280 | open_tty (name) | |
281 | char *name; | |
282 | { | |
283 | serial_t desc; | |
284 | ||
285 | desc = SERIAL_OPEN (name); | |
286 | if (!desc) | |
287 | perror_with_name (name); | |
288 | ||
289 | if (baud_rate != -1) | |
290 | { | |
291 | if (SERIAL_SETBAUDRATE (desc, baud_rate)) | |
292 | { | |
293 | SERIAL_CLOSE (desc); | |
294 | perror_with_name (name); | |
295 | } | |
296 | } | |
297 | ||
298 | SERIAL_RAW (desc); | |
299 | ||
300 | SERIAL_FLUSH_INPUT (desc); | |
301 | ||
302 | return desc; | |
303 | } | |
304 | ||
305 | /* Read a single character from the remote end, masking it down to 7 bits. */ | |
306 | ||
307 | static int | |
308 | readchar (desc, timeout) | |
309 | serial_t desc; | |
310 | int timeout; | |
311 | { | |
312 | int ch; | |
313 | char s[10]; | |
314 | ||
315 | ch = SERIAL_READCHAR (desc, timeout); | |
316 | ||
317 | switch (ch) | |
318 | { | |
319 | case SERIAL_EOF: | |
320 | error ("SPARClite remote connection closed"); | |
321 | case SERIAL_ERROR: | |
322 | perror_with_name ("SPARClite communication error"); | |
323 | case SERIAL_TIMEOUT: | |
324 | error ("SPARClite remote timeout"); | |
325 | default: | |
326 | if (remote_debug > 0) | |
327 | { | |
328 | sprintf (s, "[%02x]", ch & 0xff); | |
329 | puts_debug ("read -->", s, "<--"); | |
330 | } | |
331 | return ch; | |
332 | } | |
333 | } | |
334 | ||
335 | static void | |
336 | debug_serial_write (desc, buf, len) | |
337 | serial_t desc; | |
338 | char *buf; | |
339 | int len; | |
340 | { | |
341 | char s[10]; | |
342 | ||
343 | SERIAL_WRITE (desc, buf, len); | |
344 | if (remote_debug > 0) | |
345 | { | |
346 | while (len-- > 0) | |
347 | { | |
348 | sprintf (s, "[%02x]", *buf & 0xff); | |
349 | puts_debug ("Sent -->", s, "<--"); | |
350 | buf++; | |
351 | } | |
352 | } | |
353 | } | |
354 | ||
355 | ||
356 | static int | |
357 | send_resp (desc, c) | |
358 | serial_t desc; | |
359 | char c; | |
360 | { | |
361 | debug_serial_write (desc, &c, 1); | |
362 | return readchar (desc, remote_timeout); | |
363 | } | |
364 | ||
365 | static void | |
366 | close_tty (ignore) | |
367 | int ignore; | |
368 | { | |
369 | if (!remote_desc) | |
370 | return; | |
371 | ||
372 | SERIAL_CLOSE (remote_desc); | |
373 | ||
374 | remote_desc = NULL; | |
375 | } | |
376 | ||
377 | #ifdef HAVE_SOCKETS | |
378 | static int | |
379 | recv_udp_buf (fd, buf, len, timeout) | |
380 | int fd, len; | |
381 | unsigned char *buf; | |
382 | int timeout; | |
383 | { | |
384 | int cc; | |
385 | fd_set readfds; | |
386 | ||
387 | FD_ZERO (&readfds); | |
388 | FD_SET (fd, &readfds); | |
389 | ||
390 | if (timeout >= 0) | |
391 | { | |
392 | struct timeval timebuf; | |
393 | ||
394 | timebuf.tv_sec = timeout; | |
395 | timebuf.tv_usec = 0; | |
396 | cc = select (fd + 1, &readfds, 0, 0, &timebuf); | |
397 | } | |
398 | else | |
399 | cc = select (fd + 1, &readfds, 0, 0, 0); | |
400 | ||
401 | if (cc == 0) | |
402 | return 0; | |
403 | ||
404 | if (cc != 1) | |
405 | perror_with_name ("recv_udp_buf: Bad return value from select:"); | |
406 | ||
407 | cc = recv (fd, buf, len, 0); | |
408 | ||
409 | if (cc < 0) | |
410 | perror_with_name ("Got an error from recv: "); | |
411 | } | |
412 | ||
413 | static int | |
414 | send_udp_buf (fd, buf, len) | |
415 | int fd, len; | |
416 | unsigned char *buf; | |
417 | { | |
418 | int cc; | |
419 | ||
420 | cc = send (fd, buf, len, 0); | |
421 | ||
422 | if (cc == len) | |
423 | return; | |
424 | ||
425 | if (cc < 0) | |
426 | perror_with_name ("Got an error from send: "); | |
427 | ||
428 | error ("Short count in send: tried %d, sent %d\n", len, cc); | |
429 | } | |
430 | #endif /* HAVE_SOCKETS */ | |
431 | ||
432 | static void | |
433 | sparclite_open (name, from_tty) | |
434 | char *name; | |
435 | int from_tty; | |
436 | { | |
437 | struct cleanup *old_chain; | |
438 | int c; | |
439 | char *p; | |
440 | ||
441 | if (!name) | |
442 | error ("You need to specify what device or hostname is associated with the SparcLite board."); | |
443 | ||
444 | target_preopen (from_tty); | |
445 | ||
446 | unpush_target (&sparclite_ops); | |
447 | ||
448 | if (remote_target_name) | |
449 | free (remote_target_name); | |
450 | ||
451 | remote_target_name = strsave (name); | |
452 | ||
453 | /* We need a 'serial' or 'udp' keyword to disambiguate host:port, which can | |
454 | mean either a serial port on a terminal server, or the IP address of a | |
455 | SPARClite demo board. If there's no colon, then it pretty much has to be | |
456 | a local device (except for DOS... grrmble) */ | |
457 | ||
458 | p = strchr (name, ' '); | |
459 | ||
460 | if (p) | |
461 | { | |
462 | *p++ = '\000'; | |
463 | while ((*p != '\000') && isspace (*p)) p++; | |
464 | ||
465 | if (strncmp (name, "serial", strlen (name)) == 0) | |
466 | serial_flag = 1; | |
467 | else if (strncmp (name, "udp", strlen (name)) == 0) | |
468 | serial_flag = 0; | |
469 | else | |
470 | error ("Must specify either `serial' or `udp'."); | |
471 | } | |
472 | else | |
473 | { | |
474 | p = name; | |
475 | ||
476 | if (!strchr (name, ':')) | |
477 | serial_flag = 1; /* No colon is unambiguous (local device) */ | |
478 | else | |
479 | error ("Usage: target sparclite serial /dev/ttyb\n\ | |
480 | or: target sparclite udp host"); | |
481 | } | |
482 | ||
483 | if (serial_flag) | |
484 | { | |
485 | remote_desc = open_tty (p); | |
486 | ||
487 | old_chain = make_cleanup ((make_cleanup_func) close_tty, 0); | |
488 | ||
489 | c = send_resp (remote_desc, 0x00); | |
490 | ||
491 | if (c != 0xaa) | |
492 | error ("Unknown response (0x%x) from SparcLite. Try resetting the board.", | |
493 | c); | |
494 | ||
495 | c = send_resp (remote_desc, 0x55); | |
496 | ||
497 | if (c != 0x55) | |
498 | error ("Sparclite appears to be ill."); | |
499 | } | |
500 | else | |
501 | { | |
502 | #ifdef HAVE_SOCKETS | |
503 | struct hostent *he; | |
504 | struct sockaddr_in sockaddr; | |
505 | unsigned char buffer[100]; | |
506 | int cc; | |
507 | ||
508 | /* Setup the socket. Must be raw UDP. */ | |
509 | ||
510 | he = gethostbyname (p); | |
511 | ||
512 | if (!he) | |
513 | error ("No such host %s.", p); | |
514 | ||
515 | udp_fd = socket (PF_INET, SOCK_DGRAM, 0); | |
516 | ||
517 | old_chain = make_cleanup (close, udp_fd); | |
518 | ||
519 | sockaddr.sin_family = PF_INET; | |
520 | sockaddr.sin_port = htons(7000); | |
521 | memcpy (&sockaddr.sin_addr.s_addr, he->h_addr, sizeof (struct in_addr)); | |
522 | ||
523 | if (connect (udp_fd, &sockaddr, sizeof(sockaddr))) | |
524 | perror_with_name ("Connect failed"); | |
525 | ||
526 | buffer[0] = 0x5; | |
527 | buffer[1] = 0; | |
528 | ||
529 | send_udp_buf (udp_fd, buffer, 2); /* Request version */ | |
530 | cc = recv_udp_buf (udp_fd, buffer, sizeof(buffer), 5); /* Get response */ | |
531 | if (cc == 0) | |
532 | error ("SPARClite isn't responding."); | |
533 | ||
534 | if (cc < 3) | |
535 | error ("SPARClite appears to be ill."); | |
536 | #else | |
537 | error ("UDP downloading is not supported for DOS hosts."); | |
538 | #endif /* HAVE_SOCKETS */ | |
539 | } | |
540 | ||
541 | printf_unfiltered ("[SPARClite appears to be alive]\n"); | |
542 | ||
543 | push_target (&sparclite_ops); | |
544 | ||
545 | discard_cleanups (old_chain); | |
546 | ||
547 | return; | |
548 | } | |
549 | ||
550 | static void | |
551 | sparclite_close (quitting) | |
552 | int quitting; | |
553 | { | |
554 | if (serial_flag) | |
555 | close_tty (0); | |
556 | #ifdef HAVE_SOCKETS | |
557 | else | |
558 | if (udp_fd != -1) | |
559 | close (udp_fd); | |
560 | #endif | |
561 | } | |
562 | ||
563 | #define LOAD_ADDRESS 0x40000000 | |
564 | ||
565 | static void | |
566 | download (target_name, args, from_tty, write_routine, start_routine) | |
567 | char *target_name; | |
568 | char *args; | |
569 | int from_tty; | |
570 | void (*write_routine) PARAMS ((bfd *from_bfd, asection *from_sec, | |
571 | file_ptr from_addr, bfd_vma to_addr, int len)); | |
572 | void (*start_routine) PARAMS ((bfd_vma entry)); | |
573 | { | |
574 | struct cleanup *old_chain; | |
575 | asection *section; | |
576 | bfd *pbfd; | |
577 | bfd_vma entry; | |
578 | int i; | |
579 | #define WRITESIZE 1024 | |
580 | char *filename; | |
581 | int quiet; | |
582 | int nostart; | |
583 | ||
584 | quiet = 0; | |
585 | nostart = 0; | |
586 | filename = NULL; | |
587 | ||
588 | while (*args != '\000') | |
589 | { | |
590 | char *arg; | |
591 | ||
592 | while (isspace (*args)) args++; | |
593 | ||
594 | arg = args; | |
595 | ||
596 | while ((*args != '\000') && !isspace (*args)) args++; | |
597 | ||
598 | if (*args != '\000') | |
599 | *args++ = '\000'; | |
600 | ||
601 | if (*arg != '-') | |
602 | filename = arg; | |
603 | else if (strncmp (arg, "-quiet", strlen (arg)) == 0) | |
604 | quiet = 1; | |
605 | else if (strncmp (arg, "-nostart", strlen (arg)) == 0) | |
606 | nostart = 1; | |
607 | else | |
608 | error ("unknown option `%s'", arg); | |
609 | } | |
610 | ||
611 | if (!filename) | |
612 | filename = get_exec_file (1); | |
613 | ||
614 | pbfd = bfd_openr (filename, gnutarget); | |
615 | if (pbfd == NULL) | |
616 | { | |
617 | perror_with_name (filename); | |
618 | return; | |
619 | } | |
620 | old_chain = make_cleanup ((make_cleanup_func) bfd_close, pbfd); | |
621 | ||
622 | if (!bfd_check_format (pbfd, bfd_object)) | |
623 | error ("\"%s\" is not an object file: %s", filename, | |
624 | bfd_errmsg (bfd_get_error ())); | |
625 | ||
626 | for (section = pbfd->sections; section; section = section->next) | |
627 | { | |
628 | if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) | |
629 | { | |
630 | bfd_vma section_address; | |
631 | bfd_size_type section_size; | |
632 | file_ptr fptr; | |
633 | const char *section_name; | |
634 | ||
635 | section_name = bfd_get_section_name(pbfd, section); | |
636 | ||
637 | section_address = bfd_get_section_vma (pbfd, section); | |
638 | ||
639 | /* Adjust sections from a.out files, since they don't | |
640 | carry their addresses with. */ | |
641 | if (bfd_get_flavour (pbfd) == bfd_target_aout_flavour) | |
642 | { | |
643 | if (strcmp (section_name, ".text") == 0) | |
644 | section_address = bfd_get_start_address (pbfd); | |
645 | else if (strcmp (section_name, ".data") == 0) | |
646 | { | |
647 | /* Read the first 8 bytes of the data section. | |
648 | There should be the string 'DaTa' followed by | |
649 | a word containing the actual section address. */ | |
650 | struct data_marker | |
651 | { | |
652 | char signature[4]; /* 'DaTa' */ | |
653 | unsigned char sdata[4]; /* &sdata */ | |
654 | } marker; | |
655 | bfd_get_section_contents (pbfd, section, &marker, 0, | |
656 | sizeof (marker)); | |
657 | if (strncmp (marker.signature, "DaTa", 4) == 0) | |
658 | { | |
659 | if (TARGET_BYTE_ORDER == BIG_ENDIAN) | |
660 | section_address = bfd_getb32 (marker.sdata); | |
661 | else | |
662 | section_address = bfd_getl32 (marker.sdata); | |
663 | } | |
664 | } | |
665 | } | |
666 | ||
667 | section_size = bfd_get_section_size_before_reloc (section); | |
668 | ||
669 | if (!quiet) | |
670 | printf_filtered ("[Loading section %s at 0x%x (%d bytes)]\n", | |
671 | bfd_get_section_name (pbfd, section), | |
672 | section_address, | |
673 | section_size); | |
674 | ||
675 | fptr = 0; | |
676 | while (section_size > 0) | |
677 | { | |
678 | int count; | |
679 | static char inds[] = "|/-\\"; | |
680 | static int k = 0; | |
681 | ||
682 | QUIT; | |
683 | ||
684 | count = min (section_size, WRITESIZE); | |
685 | ||
686 | write_routine (pbfd, section, fptr, section_address, count); | |
687 | ||
688 | if (!quiet) | |
689 | { | |
690 | printf_unfiltered ("\r%c", inds[k++ % 4]); | |
691 | gdb_flush (gdb_stdout); | |
692 | } | |
693 | ||
694 | section_address += count; | |
695 | fptr += count; | |
696 | section_size -= count; | |
697 | } | |
698 | } | |
699 | } | |
700 | ||
701 | if (!nostart) | |
702 | { | |
703 | entry = bfd_get_start_address (pbfd); | |
704 | ||
705 | if (!quiet) | |
706 | printf_unfiltered ("[Starting %s at 0x%x]\n", filename, entry); | |
707 | ||
708 | start_routine (entry); | |
709 | } | |
710 | ||
711 | do_cleanups (old_chain); | |
712 | } | |
713 | ||
714 | static void | |
715 | sparclite_serial_start (entry) | |
716 | bfd_vma entry; | |
717 | { | |
718 | char buffer[5]; | |
719 | int i; | |
720 | ||
721 | buffer[0] = 0x03; | |
722 | store_unsigned_integer (buffer + 1, 4, entry); | |
723 | ||
724 | debug_serial_write (remote_desc, buffer, 1 + 4); | |
725 | i = readchar (remote_desc, remote_timeout); | |
726 | if (i != 0x55) | |
727 | error ("Can't start SparcLite. Error code %d\n", i); | |
728 | } | |
729 | ||
730 | static void | |
731 | sparclite_serial_write (from_bfd, from_sec, from_addr, to_addr, len) | |
732 | bfd *from_bfd; | |
733 | asection *from_sec; | |
734 | file_ptr from_addr; | |
735 | bfd_vma to_addr; | |
736 | int len; | |
737 | { | |
738 | char buffer[4 + 4 + WRITESIZE]; /* addr + len + data */ | |
739 | unsigned char checksum; | |
740 | int i; | |
741 | ||
742 | store_unsigned_integer (buffer, 4, to_addr); /* Address */ | |
743 | store_unsigned_integer (buffer + 4, 4, len); /* Length */ | |
744 | ||
745 | bfd_get_section_contents (from_bfd, from_sec, buffer + 8, from_addr, len); | |
746 | ||
747 | checksum = 0; | |
748 | for (i = 0; i < len; i++) | |
749 | checksum += buffer[8 + i]; | |
750 | ||
751 | i = send_resp (remote_desc, 0x01); | |
752 | ||
753 | if (i != 0x5a) | |
754 | error ("Bad response from load command (0x%x)", i); | |
755 | ||
756 | debug_serial_write (remote_desc, buffer, 4 + 4 + len); | |
757 | i = readchar (remote_desc, remote_timeout); | |
758 | ||
759 | if (i != checksum) | |
760 | error ("Bad checksum from load command (0x%x)", i); | |
761 | } | |
762 | ||
763 | #ifdef HAVE_SOCKETS | |
764 | ||
765 | static unsigned short | |
766 | calc_checksum (buffer, count) | |
767 | unsigned char *buffer; | |
768 | int count; | |
769 | { | |
770 | unsigned short checksum; | |
771 | ||
772 | checksum = 0; | |
773 | for (; count > 0; count -= 2, buffer += 2) | |
774 | checksum += (*buffer << 8) | *(buffer + 1); | |
775 | ||
776 | if (count != 0) | |
777 | checksum += *buffer << 8; | |
778 | ||
779 | return checksum; | |
780 | } | |
781 | ||
782 | static void | |
783 | sparclite_udp_start (entry) | |
784 | bfd_vma entry; | |
785 | { | |
786 | unsigned char buffer[6]; | |
787 | int i; | |
788 | ||
789 | buffer[0] = 0x3; | |
790 | buffer[1] = 0; | |
791 | buffer[2] = entry >> 24; | |
792 | buffer[3] = entry >> 16; | |
793 | buffer[4] = entry >> 8; | |
794 | buffer[5] = entry; | |
795 | ||
796 | send_udp_buf (udp_fd, buffer, 6); /* Send start addr */ | |
797 | i = recv_udp_buf (udp_fd, buffer, sizeof(buffer), -1); /* Get response */ | |
798 | ||
799 | if (i < 1 || buffer[0] != 0x55) | |
800 | error ("Failed to take start address."); | |
801 | } | |
802 | ||
803 | static void | |
804 | sparclite_udp_write (from_bfd, from_sec, from_addr, to_addr, len) | |
805 | bfd *from_bfd; | |
806 | asection *from_sec; | |
807 | file_ptr from_addr; | |
808 | bfd_vma to_addr; | |
809 | int len; | |
810 | { | |
811 | unsigned char buffer[2000]; | |
812 | unsigned short checksum; | |
813 | static int pkt_num = 0; | |
814 | static unsigned long old_addr = -1; | |
815 | int i; | |
816 | ||
817 | while (1) | |
818 | { | |
819 | if (to_addr != old_addr) | |
820 | { | |
821 | buffer[0] = 0x1; /* Load command */ | |
822 | buffer[1] = 0x1; /* Loading address */ | |
823 | buffer[2] = to_addr >> 24; | |
824 | buffer[3] = to_addr >> 16; | |
825 | buffer[4] = to_addr >> 8; | |
826 | buffer[5] = to_addr; | |
827 | ||
828 | checksum = 0; | |
829 | for (i = 0; i < 6; i++) | |
830 | checksum += buffer[i]; | |
831 | checksum &= 0xff; | |
832 | ||
833 | send_udp_buf (udp_fd, buffer, 6); | |
834 | i = recv_udp_buf (udp_fd, buffer, sizeof buffer, -1); | |
835 | ||
836 | if (i < 1) | |
837 | error ("Got back short checksum for load addr."); | |
838 | ||
839 | if (checksum != buffer[0]) | |
840 | error ("Got back bad checksum for load addr."); | |
841 | ||
842 | pkt_num = 0; /* Load addr resets packet seq # */ | |
843 | old_addr = to_addr; | |
844 | } | |
845 | ||
846 | bfd_get_section_contents (from_bfd, from_sec, buffer + 6, from_addr, | |
847 | len); | |
848 | ||
849 | checksum = calc_checksum (buffer + 6, len); | |
850 | ||
851 | buffer[0] = 0x1; /* Load command */ | |
852 | buffer[1] = 0x2; /* Loading data */ | |
853 | buffer[2] = pkt_num >> 8; | |
854 | buffer[3] = pkt_num; | |
855 | buffer[4] = checksum >> 8; | |
856 | buffer[5] = checksum; | |
857 | ||
858 | send_udp_buf (udp_fd, buffer, len + 6); | |
859 | i = recv_udp_buf (udp_fd, buffer, sizeof buffer, 3); | |
860 | ||
861 | if (i == 0) | |
862 | { | |
863 | fprintf_unfiltered (gdb_stderr, "send_data: timeout sending %d bytes to address 0x%x retrying\n", len, to_addr); | |
864 | continue; | |
865 | } | |
866 | ||
867 | if (buffer[0] != 0xff) | |
868 | error ("Got back bad response for load data."); | |
869 | ||
870 | old_addr += len; | |
871 | pkt_num++; | |
872 | ||
873 | return; | |
874 | } | |
875 | } | |
876 | ||
877 | #endif /* HAVE_SOCKETS */ | |
878 | ||
879 | static void | |
880 | sparclite_download (filename, from_tty) | |
881 | char *filename; | |
882 | int from_tty; | |
883 | { | |
884 | if (!serial_flag) | |
885 | #ifdef HAVE_SOCKETS | |
886 | download (remote_target_name, filename, from_tty, sparclite_udp_write, | |
887 | sparclite_udp_start); | |
888 | #else | |
889 | abort (); /* sparclite_open should prevent this! */ | |
890 | #endif | |
891 | else | |
892 | download (remote_target_name, filename, from_tty, sparclite_serial_write, | |
893 | sparclite_serial_start); | |
894 | } | |
895 | \f | |
896 | /* Define the target subroutine names */ | |
897 | ||
898 | static struct target_ops sparclite_ops ; | |
899 | ||
900 | static void | |
901 | init_sparclite_ops(void) | |
902 | { | |
903 | sparclite_ops.to_shortname = "sparclite"; | |
904 | sparclite_ops.to_longname = "SPARClite remote target"; | |
905 | sparclite_ops.to_doc = "Use a remote SPARClite target board via a serial line; using a gdb-specific protocol.\n\ | |
906 | Specify the serial device it is connected to (e.g. /dev/ttya)."; | |
907 | sparclite_ops.to_open = sparclite_open; | |
908 | sparclite_ops.to_close = sparclite_close; | |
909 | sparclite_ops.to_attach = 0; | |
910 | sparclite_ops.to_post_attach = NULL; | |
911 | sparclite_ops.to_require_attach = NULL; | |
912 | sparclite_ops.to_detach = 0; | |
913 | sparclite_ops.to_require_detach = NULL; | |
914 | sparclite_ops.to_resume = 0; | |
915 | sparclite_ops.to_wait = 0; | |
916 | sparclite_ops.to_post_wait = NULL; | |
917 | sparclite_ops.to_fetch_registers = 0; | |
918 | sparclite_ops.to_store_registers = 0; | |
919 | sparclite_ops.to_prepare_to_store = 0; | |
920 | sparclite_ops.to_xfer_memory = 0; | |
921 | sparclite_ops.to_files_info = 0; | |
922 | sparclite_ops.to_insert_breakpoint = 0; | |
923 | sparclite_ops.to_remove_breakpoint = 0; | |
924 | sparclite_ops.to_terminal_init = 0; | |
925 | sparclite_ops.to_terminal_inferior = 0; | |
926 | sparclite_ops.to_terminal_ours_for_output = 0; | |
927 | sparclite_ops.to_terminal_ours = 0; | |
928 | sparclite_ops.to_terminal_info = 0; | |
929 | sparclite_ops.to_kill = 0; | |
930 | sparclite_ops.to_load = sparclite_download; | |
931 | sparclite_ops.to_lookup_symbol = 0; | |
932 | sparclite_ops.to_create_inferior = 0; | |
933 | sparclite_ops.to_post_startup_inferior = NULL; | |
934 | sparclite_ops.to_acknowledge_created_inferior = NULL; | |
935 | sparclite_ops.to_clone_and_follow_inferior = NULL; | |
936 | sparclite_ops.to_post_follow_inferior_by_clone = NULL; | |
937 | sparclite_ops.to_insert_fork_catchpoint = NULL; | |
938 | sparclite_ops.to_remove_fork_catchpoint = NULL; | |
939 | sparclite_ops.to_insert_vfork_catchpoint = NULL; | |
940 | sparclite_ops.to_remove_vfork_catchpoint = NULL; | |
941 | sparclite_ops.to_has_forked = NULL; | |
942 | sparclite_ops.to_has_vforked = NULL; | |
943 | sparclite_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
944 | sparclite_ops.to_post_follow_vfork = NULL; | |
945 | sparclite_ops.to_insert_exec_catchpoint = NULL; | |
946 | sparclite_ops.to_remove_exec_catchpoint = NULL; | |
947 | sparclite_ops.to_has_execd = NULL; | |
948 | sparclite_ops.to_reported_exec_events_per_exec_call = NULL; | |
949 | sparclite_ops.to_has_exited = NULL; | |
950 | sparclite_ops.to_mourn_inferior = 0; | |
951 | sparclite_ops.to_can_run = 0; | |
952 | sparclite_ops.to_notice_signals = 0; | |
953 | sparclite_ops.to_thread_alive = 0; | |
954 | sparclite_ops.to_stop = 0; | |
955 | sparclite_ops.to_pid_to_exec_file = NULL; | |
956 | sparclite_ops.to_core_file_to_sym_file = NULL; | |
957 | sparclite_ops.to_stratum = download_stratum; | |
958 | sparclite_ops.DONT_USE = 0; | |
959 | sparclite_ops.to_has_all_memory = 0; | |
960 | sparclite_ops.to_has_memory = 0; | |
961 | sparclite_ops.to_has_stack = 0; | |
962 | sparclite_ops.to_has_registers = 0; | |
963 | sparclite_ops.to_has_execution = 0; | |
964 | sparclite_ops.to_sections = 0; | |
965 | sparclite_ops.to_sections_end = 0; | |
966 | sparclite_ops.to_magic = OPS_MAGIC ; | |
967 | } /* init_sparclite_ops */ | |
968 | ||
969 | void | |
970 | _initialize_sparcl_tdep () | |
971 | { | |
972 | init_sparclite_ops() ; | |
973 | add_target (&sparclite_ops); | |
974 | } |