Commit | Line | Data |
---|---|---|
0e887539 | 1 | /* Target dependent code for the Fujitsu SPARClite for GDB, the GNU debugger. |
2f4973f8 | 2 | Copyright 1994, 1995, 1996 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 | |
6c9638b4 | 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
b955f680 KH |
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> | |
45993f61 | 26 | |
9e77e83d | 27 | #if !defined(__GO32__) && !defined(_WIN32) |
45993f61 | 28 | #define HAVE_SOCKETS |
9e77e83d | 29 | #include <sys/time.h> |
4887063b | 30 | #include <unistd.h> |
0e887539 SG |
31 | #include <sys/socket.h> |
32 | #include <netinet/in.h> | |
33 | #include <netdb.h> | |
a76ef70a | 34 | #endif |
0e887539 SG |
35 | |
36 | extern struct target_ops sparclite_ops; /* Forward decl */ | |
37 | extern struct target_ops remote_ops; | |
38 | ||
39 | static char *remote_target_name = NULL; | |
40 | static serial_t remote_desc = NULL; | |
0e887539 | 41 | static int serial_flag; |
45993f61 | 42 | #ifdef HAVE_SOCKETS |
a76ef70a SG |
43 | static int udp_fd = -1; |
44 | #endif | |
0e887539 SG |
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)); | |
45993f61 | 49 | #ifdef HAVE_SOCKETS |
0e887539 SG |
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)); | |
a76ef70a | 52 | #endif |
0e887539 SG |
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, | |
56 | void (*write_routine) (bfd *from_bfd, | |
57 | asection *from_sec, | |
58 | file_ptr from_addr, | |
59 | bfd_vma to_addr, int len), | |
60 | void (*start_routine) (bfd_vma entry))); | |
61 | static void sparclite_serial_start PARAMS ((bfd_vma entry)); | |
62 | static void sparclite_serial_write PARAMS ((bfd *from_bfd, asection *from_sec, | |
63 | file_ptr from_addr, | |
64 | bfd_vma to_addr, int len)); | |
45993f61 | 65 | #ifdef HAVE_SOCKETS |
0e887539 SG |
66 | static unsigned short calc_checksum PARAMS ((unsigned char *buffer, |
67 | int count)); | |
68 | static void sparclite_udp_start PARAMS ((bfd_vma entry)); | |
69 | static void sparclite_udp_write PARAMS ((bfd *from_bfd, asection *from_sec, | |
70 | file_ptr from_addr, bfd_vma to_addr, | |
71 | int len)); | |
a76ef70a | 72 | #endif |
0e887539 | 73 | static void sparclite_download PARAMS ((char *filename, int from_tty)); |
b955f680 KH |
74 | |
75 | #define DDA2_SUP_ASI 0xb000000 | |
76 | #define DDA1_SUP_ASI 0xb0000 | |
77 | ||
78 | #define DDA2_ASI_MASK 0xff000000 | |
79 | #define DDA1_ASI_MASK 0xff0000 | |
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 | |
ce8f5b49 | 86 | #define DSINGLE_STEP 0x10 /* not used */ |
b955f680 KH |
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 | |
c746aa85 SG |
96 | sparclite_insert_watchpoint (addr, len, type) |
97 | CORE_ADDR addr; | |
98 | int len; | |
99 | int type; | |
b955f680 | 100 | { |
c746aa85 | 101 | CORE_ADDR dcr; |
b955f680 KH |
102 | |
103 | dcr = read_register (DCR_REGNUM); | |
104 | ||
105 | if (!(dcr & DDA1_ENABLE)) | |
b955f680 | 106 | { |
c746aa85 SG |
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)); | |
115 | } | |
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); | |
b955f680 | 129 | } |
b955f680 | 130 | else if (!(dcr & DDA2_ENABLE)) |
b955f680 | 131 | { |
c746aa85 SG |
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); | |
b955f680 | 154 | } |
b955f680 KH |
155 | else |
156 | return -1; | |
157 | ||
158 | return 0; | |
159 | } | |
160 | ||
161 | int | |
c746aa85 SG |
162 | sparclite_remove_watchpoint (addr, len, type) |
163 | CORE_ADDR addr; | |
164 | int len; | |
165 | int type; | |
b955f680 | 166 | { |
c746aa85 | 167 | CORE_ADDR dcr, dda1, dda2; |
b955f680 KH |
168 | |
169 | dcr = read_register (DCR_REGNUM); | |
170 | dda1 = read_register (DDA1_REGNUM); | |
171 | dda2 = read_register (DDA2_REGNUM); | |
172 | ||
c746aa85 | 173 | if ((dcr & DDA1_ENABLE) && addr == dda1) |
b955f680 | 174 | write_register (DCR_REGNUM, (dcr & ~DDA1_ENABLE)); |
c746aa85 | 175 | else if ((dcr & DDA2_ENABLE) && addr == dda2) |
b955f680 | 176 | write_register (DCR_REGNUM, (dcr & ~DDA2_ENABLE)); |
b955f680 KH |
177 | else |
178 | return -1; | |
179 | ||
180 | return 0; | |
181 | } | |
182 | ||
183 | int | |
c746aa85 SG |
184 | sparclite_insert_hw_breakpoint (addr, len) |
185 | CORE_ADDR addr; | |
186 | int len; | |
b955f680 | 187 | { |
c746aa85 | 188 | CORE_ADDR dcr; |
b955f680 KH |
189 | |
190 | dcr = read_register (DCR_REGNUM); | |
191 | ||
c746aa85 SG |
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 | } | |
b955f680 KH |
202 | else |
203 | return -1; | |
204 | ||
205 | return 0; | |
206 | } | |
207 | ||
208 | int | |
c746aa85 SG |
209 | sparclite_remove_hw_breakpoint (addr, shadow) |
210 | CORE_ADDR addr; | |
211 | int shadow; | |
b955f680 | 212 | { |
c746aa85 | 213 | CORE_ADDR dcr, dia1, dia2; |
b955f680 KH |
214 | |
215 | dcr = read_register (DCR_REGNUM); | |
216 | dia1 = read_register (DIA1_REGNUM); | |
217 | dia2 = read_register (DIA2_REGNUM); | |
218 | ||
c746aa85 | 219 | if ((dcr & DIA1_ENABLE) && addr == dia1) |
b955f680 | 220 | write_register (DCR_REGNUM, (dcr & ~DIA1_ENABLE)); |
c746aa85 | 221 | else if ((dcr & DIA2_ENABLE) && addr == dia2) |
b955f680 | 222 | write_register (DCR_REGNUM, (dcr & ~DIA2_ENABLE)); |
b955f680 KH |
223 | else |
224 | return -1; | |
c746aa85 | 225 | |
b955f680 KH |
226 | return 0; |
227 | } | |
228 | ||
229 | int | |
c746aa85 SG |
230 | sparclite_check_watch_resources (type, cnt, ot) |
231 | int type; | |
232 | int cnt; | |
233 | int ot; | |
b955f680 | 234 | { |
ce8f5b49 MA |
235 | /* Watchpoints not supported on simulator. */ |
236 | if (strcmp (target_shortname, "sim") == 0) | |
237 | return 0; | |
238 | ||
c746aa85 | 239 | if (type == bp_hardware_breakpoint) |
0fe1522a SG |
240 | { |
241 | if (TARGET_HW_BREAK_LIMIT == 0) | |
242 | return 0; | |
243 | else if (cnt <= TARGET_HW_BREAK_LIMIT) | |
244 | return 1; | |
245 | } | |
c746aa85 | 246 | else |
0fe1522a SG |
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 | } | |
b955f680 KH |
255 | return -1; |
256 | } | |
257 | ||
258 | CORE_ADDR | |
c746aa85 | 259 | sparclite_stopped_data_address () |
b955f680 KH |
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 | ||
c746aa85 SG |
267 | if (dsr & 0x10) |
268 | return dda1; | |
269 | else if (dsr & 0x20) | |
270 | return dda2; | |
271 | else | |
272 | return 0; | |
b955f680 | 273 | } |
0e887539 SG |
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 | ||
934ec87c SG |
301 | /* Read a single character from the remote end, masking it down to 7 bits. */ |
302 | ||
0e887539 | 303 | static int |
934ec87c | 304 | readchar (desc, timeout) |
0e887539 | 305 | serial_t desc; |
934ec87c | 306 | int timeout; |
0e887539 | 307 | { |
934ec87c | 308 | int ch; |
e50f526e | 309 | char s[10]; |
0e887539 | 310 | |
934ec87c | 311 | ch = SERIAL_READCHAR (desc, timeout); |
0e887539 | 312 | |
934ec87c | 313 | switch (ch) |
0e887539 | 314 | { |
934ec87c SG |
315 | case SERIAL_EOF: |
316 | error ("SPARClite remote connection closed"); | |
0e887539 | 317 | case SERIAL_ERROR: |
934ec87c | 318 | perror_with_name ("SPARClite communication error"); |
0e887539 | 319 | case SERIAL_TIMEOUT: |
934ec87c SG |
320 | error ("SPARClite remote timeout"); |
321 | default: | |
e50f526e MA |
322 | if (remote_debug > 0) |
323 | { | |
324 | sprintf (s, "[%02x]", ch & 0xff); | |
325 | puts_debug ("read -->", s, "<--"); | |
326 | } | |
934ec87c | 327 | return ch; |
0e887539 SG |
328 | } |
329 | } | |
330 | ||
e50f526e MA |
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 | ||
934ec87c SG |
352 | static int |
353 | send_resp (desc, c) | |
354 | serial_t desc; | |
355 | char c; | |
356 | { | |
e50f526e | 357 | debug_serial_write (desc, &c, 1); |
c0351c0f | 358 | return readchar (desc, remote_timeout); |
934ec87c SG |
359 | } |
360 | ||
0e887539 SG |
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 | ||
45993f61 | 373 | #ifdef HAVE_SOCKETS |
0e887539 SG |
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 | } | |
d6acae68 | 426 | #endif /* HAVE_SOCKETS */ |
0e887539 SG |
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'; | |
459 | while ((*p != '\000') && isspace (*p)) p++; | |
460 | ||
461 | if (strncmp (name, "serial", strlen (name)) == 0) | |
462 | serial_flag = 1; | |
463 | else if (strncmp (name, "udp", strlen (name)) == 0) | |
464 | serial_flag = 0; | |
465 | else | |
466 | error ("Must specify either `serial' or `udp'."); | |
467 | } | |
468 | else | |
469 | { | |
470 | p = name; | |
471 | ||
472 | if (!strchr (name, ':')) | |
473 | serial_flag = 1; /* No colon is unambiguous (local device) */ | |
474 | else | |
475 | error ("Usage: target sparclite serial /dev/ttyb\n\ | |
476 | or: target sparclite udp host"); | |
477 | } | |
478 | ||
479 | if (serial_flag) | |
480 | { | |
481 | remote_desc = open_tty (p); | |
482 | ||
c8623080 | 483 | old_chain = make_cleanup ((make_cleanup_func) close_tty, 0); |
0e887539 SG |
484 | |
485 | c = send_resp (remote_desc, 0x00); | |
486 | ||
487 | if (c != 0xaa) | |
488 | error ("Unknown response (0x%x) from SparcLite. Try resetting the board.", | |
489 | c); | |
490 | ||
491 | c = send_resp (remote_desc, 0x55); | |
492 | ||
493 | if (c != 0x55) | |
494 | error ("Sparclite appears to be ill."); | |
495 | } | |
496 | else | |
497 | { | |
45993f61 | 498 | #ifdef HAVE_SOCKETS |
0e887539 SG |
499 | struct hostent *he; |
500 | struct sockaddr_in sockaddr; | |
501 | unsigned char buffer[100]; | |
502 | int cc; | |
503 | ||
504 | /* Setup the socket. Must be raw UDP. */ | |
505 | ||
506 | he = gethostbyname (p); | |
507 | ||
508 | if (!he) | |
509 | error ("No such host %s.", p); | |
510 | ||
511 | udp_fd = socket (PF_INET, SOCK_DGRAM, 0); | |
512 | ||
513 | old_chain = make_cleanup (close, udp_fd); | |
514 | ||
515 | sockaddr.sin_family = PF_INET; | |
516 | sockaddr.sin_port = htons(7000); | |
517 | memcpy (&sockaddr.sin_addr.s_addr, he->h_addr, sizeof (struct in_addr)); | |
518 | ||
519 | if (connect (udp_fd, &sockaddr, sizeof(sockaddr))) | |
520 | perror_with_name ("Connect failed"); | |
521 | ||
522 | buffer[0] = 0x5; | |
523 | buffer[1] = 0; | |
524 | ||
525 | send_udp_buf (udp_fd, buffer, 2); /* Request version */ | |
526 | cc = recv_udp_buf (udp_fd, buffer, sizeof(buffer), 5); /* Get response */ | |
527 | if (cc == 0) | |
528 | error ("SPARClite isn't responding."); | |
529 | ||
530 | if (cc < 3) | |
531 | error ("SPARClite appears to be ill."); | |
a76ef70a SG |
532 | #else |
533 | error ("UDP downloading is not supported for DOS hosts."); | |
d6acae68 | 534 | #endif /* HAVE_SOCKETS */ |
0e887539 SG |
535 | } |
536 | ||
537 | printf_unfiltered ("[SPARClite appears to be alive]\n"); | |
538 | ||
539 | push_target (&sparclite_ops); | |
540 | ||
541 | discard_cleanups (old_chain); | |
542 | ||
543 | return; | |
544 | } | |
545 | ||
546 | static void | |
547 | sparclite_close (quitting) | |
548 | int quitting; | |
549 | { | |
550 | if (serial_flag) | |
551 | close_tty (0); | |
45993f61 | 552 | #ifdef HAVE_SOCKETS |
0e887539 SG |
553 | else |
554 | if (udp_fd != -1) | |
555 | close (udp_fd); | |
a76ef70a | 556 | #endif |
0e887539 SG |
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; | |
8501c742 SG |
566 | void (*write_routine) PARAMS ((bfd *from_bfd, asection *from_sec, |
567 | file_ptr from_addr, bfd_vma to_addr, int len)); | |
568 | void (*start_routine) PARAMS ((bfd_vma entry)); | |
0e887539 SG |
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 | ||
588 | while (isspace (*args)) args++; | |
589 | ||
590 | arg = args; | |
591 | ||
592 | while ((*args != '\000') && !isspace (*args)) args++; | |
593 | ||
594 | if (*args != '\000') | |
595 | *args++ = '\000'; | |
596 | ||
597 | if (*arg != '-') | |
598 | filename = arg; | |
599 | else if (strncmp (arg, "-quiet", strlen (arg)) == 0) | |
600 | quiet = 1; | |
601 | else if (strncmp (arg, "-nostart", strlen (arg)) == 0) | |
602 | nostart = 1; | |
603 | else | |
604 | error ("unknown option `%s'", arg); | |
605 | } | |
606 | ||
607 | if (!filename) | |
608 | filename = get_exec_file (1); | |
609 | ||
610 | pbfd = bfd_openr (filename, gnutarget); | |
611 | if (pbfd == NULL) | |
612 | { | |
613 | perror_with_name (filename); | |
614 | return; | |
615 | } | |
c8623080 | 616 | old_chain = make_cleanup ((make_cleanup_func) bfd_close, pbfd); |
0e887539 SG |
617 | |
618 | if (!bfd_check_format (pbfd, bfd_object)) | |
619 | error ("\"%s\" is not an object file: %s", filename, | |
620 | bfd_errmsg (bfd_get_error ())); | |
621 | ||
622 | for (section = pbfd->sections; section; section = section->next) | |
623 | { | |
624 | if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) | |
625 | { | |
c0351c0f | 626 | bfd_vma section_address; |
0e887539 | 627 | bfd_size_type section_size; |
c0351c0f MA |
628 | file_ptr fptr; |
629 | const char *section_name; | |
630 | ||
631 | section_name = bfd_get_section_name(pbfd, section); | |
0e887539 SG |
632 | |
633 | section_address = bfd_get_section_vma (pbfd, section); | |
c0351c0f | 634 | |
0e887539 SG |
635 | /* Adjust sections from a.out files, since they don't |
636 | carry their addresses with. */ | |
637 | if (bfd_get_flavour (pbfd) == bfd_target_aout_flavour) | |
c0351c0f MA |
638 | { |
639 | if (strcmp (section_name, ".text") == 0) | |
640 | section_address = bfd_get_start_address (pbfd); | |
641 | else if (strcmp (section_name, ".data") == 0) | |
642 | { | |
643 | /* Read the first 8 bytes of the data section. | |
644 | There should be the string 'DaTa' followed by | |
645 | a word containing the actual section address. */ | |
646 | struct data_marker | |
647 | { | |
648 | char signature[4]; /* 'DaTa' */ | |
649 | unsigned char sdata[4]; /* &sdata */ | |
650 | } marker; | |
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 | } | |
0e887539 SG |
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 | ||
e50f526e | 720 | debug_serial_write (remote_desc, buffer, 1 + 4); |
c0351c0f | 721 | i = readchar (remote_desc, remote_timeout); |
0e887539 SG |
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 | { | |
734 | char buffer[4 + 4 + WRITESIZE]; /* addr + len + data */ | |
735 | unsigned char checksum; | |
736 | int i; | |
737 | ||
738 | store_unsigned_integer (buffer, 4, to_addr); /* Address */ | |
739 | store_unsigned_integer (buffer + 4, 4, len); /* Length */ | |
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 | ||
e50f526e | 752 | debug_serial_write (remote_desc, buffer, 4 + 4 + len); |
c0351c0f | 753 | i = readchar (remote_desc, remote_timeout); |
0e887539 SG |
754 | |
755 | if (i != checksum) | |
756 | error ("Bad checksum from load command (0x%x)", i); | |
757 | } | |
758 | ||
45993f61 | 759 | #ifdef HAVE_SOCKETS |
a76ef70a | 760 | |
0e887539 SG |
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 | ||
792 | send_udp_buf (udp_fd, buffer, 6); /* Send start addr */ | |
793 | i = recv_udp_buf (udp_fd, buffer, sizeof(buffer), -1); /* Get response */ | |
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 | ||
d6acae68 | 873 | #endif /* HAVE_SOCKETS */ |
a76ef70a | 874 | |
0e887539 SG |
875 | static void |
876 | sparclite_download (filename, from_tty) | |
877 | char *filename; | |
878 | int from_tty; | |
879 | { | |
880 | if (!serial_flag) | |
45993f61 | 881 | #ifdef HAVE_SOCKETS |
0e887539 SG |
882 | download (remote_target_name, filename, from_tty, sparclite_udp_write, |
883 | sparclite_udp_start); | |
a76ef70a SG |
884 | #else |
885 | abort (); /* sparclite_open should prevent this! */ | |
886 | #endif | |
0e887539 SG |
887 | else |
888 | download (remote_target_name, filename, from_tty, sparclite_serial_write, | |
889 | sparclite_serial_start); | |
890 | } | |
891 | \f | |
892 | /* Define the target subroutine names */ | |
893 | ||
c719b714 JM |
894 | static struct target_ops sparclite_ops ; |
895 | ||
896 | static void init_sparclite_ops(void) | |
0e887539 | 897 | { |
c719b714 JM |
898 | sparclite_ops.to_shortname = "sparclite"; |
899 | sparclite_ops.to_longname = "SPARClite remote target"; | |
900 | sparclite_ops.to_doc = "Use a remote SPARClite target board via a serial line; using a gdb-specific protocol.\n\ | |
901 | Specify the serial device it is connected to (e.g. /dev/ttya)."; | |
902 | sparclite_ops.to_open = sparclite_open; | |
903 | sparclite_ops.to_close = sparclite_close; | |
904 | sparclite_ops.to_attach = 0; | |
4ef1f467 DT |
905 | sparclite_ops.to_post_attach = NULL; |
906 | sparclite_ops.to_require_attach = NULL; | |
907 | sparclite_ops.to_detach = 0; | |
908 | sparclite_ops.to_require_detach = NULL; | |
c719b714 | 909 | sparclite_ops.to_resume = 0; |
4ef1f467 DT |
910 | sparclite_ops.to_wait = 0; |
911 | sparclite_ops.to_post_wait = NULL; | |
c719b714 JM |
912 | sparclite_ops.to_fetch_registers = 0; |
913 | sparclite_ops.to_store_registers = 0; | |
914 | sparclite_ops.to_prepare_to_store = 0; | |
915 | sparclite_ops.to_xfer_memory = 0; | |
916 | sparclite_ops.to_files_info = 0; | |
917 | sparclite_ops.to_insert_breakpoint = 0; | |
918 | sparclite_ops.to_remove_breakpoint = 0; | |
919 | sparclite_ops.to_terminal_init = 0; | |
920 | sparclite_ops.to_terminal_inferior = 0; | |
921 | sparclite_ops.to_terminal_ours_for_output = 0; | |
922 | sparclite_ops.to_terminal_ours = 0; | |
923 | sparclite_ops.to_terminal_info = 0; | |
924 | sparclite_ops.to_kill = 0; | |
925 | sparclite_ops.to_load = sparclite_download; | |
926 | sparclite_ops.to_lookup_symbol = 0; | |
4ef1f467 DT |
927 | sparclite_ops.to_create_inferior = 0; |
928 | sparclite_ops.to_post_startup_inferior = NULL; | |
929 | sparclite_ops.to_acknowledge_created_inferior = NULL; | |
930 | sparclite_ops.to_clone_and_follow_inferior = NULL; | |
931 | sparclite_ops.to_post_follow_inferior_by_clone = NULL; | |
932 | sparclite_ops.to_insert_fork_catchpoint = NULL; | |
933 | sparclite_ops.to_remove_fork_catchpoint = NULL; | |
934 | sparclite_ops.to_insert_vfork_catchpoint = NULL; | |
935 | sparclite_ops.to_remove_vfork_catchpoint = NULL; | |
936 | sparclite_ops.to_has_forked = NULL; | |
937 | sparclite_ops.to_has_vforked = NULL; | |
938 | sparclite_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
939 | sparclite_ops.to_post_follow_vfork = NULL; | |
940 | sparclite_ops.to_insert_exec_catchpoint = NULL; | |
941 | sparclite_ops.to_remove_exec_catchpoint = NULL; | |
942 | sparclite_ops.to_has_execd = NULL; | |
943 | sparclite_ops.to_reported_exec_events_per_exec_call = NULL; | |
944 | sparclite_ops.to_has_exited = NULL; | |
c719b714 JM |
945 | sparclite_ops.to_mourn_inferior = 0; |
946 | sparclite_ops.to_can_run = 0; | |
947 | sparclite_ops.to_notice_signals = 0; | |
948 | sparclite_ops.to_thread_alive = 0; | |
4ef1f467 DT |
949 | sparclite_ops.to_stop = 0; |
950 | sparclite_ops.to_pid_to_exec_file = NULL; | |
951 | sparclite_ops.to_core_file_to_sym_file = NULL; | |
c719b714 JM |
952 | sparclite_ops.to_stratum = download_stratum; |
953 | sparclite_ops.DONT_USE = 0; | |
954 | sparclite_ops.to_has_all_memory = 0; | |
955 | sparclite_ops.to_has_memory = 0; | |
956 | sparclite_ops.to_has_stack = 0; | |
957 | sparclite_ops.to_has_registers = 0; | |
958 | sparclite_ops.to_has_execution = 0; | |
959 | sparclite_ops.to_sections = 0; | |
960 | sparclite_ops.to_sections_end = 0; | |
961 | sparclite_ops.to_magic = OPS_MAGIC ; | |
962 | } /* init_sparclite_ops */ | |
0e887539 SG |
963 | |
964 | void | |
965 | _initialize_sparcl_tdep () | |
966 | { | |
c719b714 | 967 | init_sparclite_ops() ; |
0e887539 SG |
968 | add_target (&sparclite_ops); |
969 | } |