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c906108c SS |
1 | /* Remote debugging for the ARM RDP interface. |
2 | Copyright 1994, 1995 Free Software Foundation, Inc. | |
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 | ||
21 | */ | |
22 | ||
23 | ||
24 | /* | |
25 | Much of this file (in particular the SWI stuff) is based on code by | |
26 | David Taylor (djt1000@uk.ac.cam.hermes). | |
27 | ||
28 | I hacked on and simplified it by removing a lot of sexy features he | |
29 | had added, and some of the (unix specific) workarounds he'd done | |
30 | for other GDB problems - which if they still exist should be fixed | |
31 | in GDB, not in a remote-foo thing . I also made it conform more to | |
32 | the doc I have; which may be wrong. | |
33 | ||
34 | Steve Chamberlain (sac@cygnus.com). | |
35 | */ | |
36 | ||
37 | ||
38 | #include "defs.h" | |
39 | #include "inferior.h" | |
40 | #include "wait.h" | |
41 | #include "value.h" | |
42 | #include "callback.h" | |
43 | #include "command.h" | |
44 | #ifdef ANSI_PROTOTYPES | |
45 | #include <stdarg.h> | |
46 | #else | |
47 | #include <varargs.h> | |
48 | #endif | |
49 | #include <ctype.h> | |
50 | #include <fcntl.h> | |
51 | #include "symfile.h" | |
52 | #include "remote-utils.h" | |
53 | #include "gdb_string.h" | |
54 | #ifdef HAVE_UNISTD_H | |
55 | #include <unistd.h> | |
56 | #endif | |
57 | #include "gdbcore.h" | |
58 | ||
59 | ||
60 | extern struct target_ops remote_rdp_ops; | |
61 | static serial_t io; | |
62 | static host_callback *callback = &default_callback; | |
63 | ||
64 | struct | |
65 | { | |
66 | int step_info; | |
67 | int break_info; | |
68 | int model_info; | |
69 | int target_info; | |
70 | int can_step; | |
71 | char command_line[10]; | |
72 | int rdi_level; | |
73 | int rdi_stopped_status; | |
74 | } | |
75 | ds; | |
76 | ||
77 | ||
78 | ||
79 | /* Definitions for the RDP protocol. */ | |
80 | ||
81 | #define RDP_MOUTHFULL (1<<6) | |
82 | #define FPU_COPRO_NUMBER 1 | |
83 | ||
84 | #define RDP_OPEN 0 | |
85 | #define RDP_OPEN_TYPE_COLD 0 | |
86 | #define RDP_OPEN_TYPE_WARM 1 | |
87 | #define RDP_OPEN_TYPE_BAUDRATE 2 | |
88 | ||
89 | #define RDP_OPEN_BAUDRATE_9600 1 | |
90 | #define RDP_OPEN_BAUDRATE_19200 2 | |
91 | #define RDP_OPEN_BAUDRATE_38400 3 | |
92 | ||
93 | #define RDP_OPEN_TYPE_RETURN_SEX (1<<3) | |
94 | ||
95 | #define RDP_CLOSE 1 | |
96 | ||
97 | #define RDP_MEM_READ 2 | |
98 | ||
99 | #define RDP_MEM_WRITE 3 | |
100 | ||
101 | #define RDP_CPU_READ 4 | |
102 | #define RDP_CPU_WRITE 5 | |
103 | #define RDP_CPU_READWRITE_MODE_CURRENT 255 | |
104 | #define RDP_CPU_READWRITE_MASK_PC (1<<16) | |
105 | #define RDP_CPU_READWRITE_MASK_CPSR (1<<17) | |
106 | #define RDP_CPU_READWRITE_MASK_SPSR (1<<18) | |
107 | ||
108 | #define RDP_COPRO_READ 6 | |
109 | #define RDP_COPRO_WRITE 7 | |
110 | #define RDP_FPU_READWRITE_MASK_FPS (1<<8) | |
111 | ||
112 | #define RDP_SET_BREAK 0xa | |
113 | #define RDP_SET_BREAK_TYPE_PC_EQUAL 0 | |
114 | #define RDP_SET_BREAK_TYPE_GET_HANDLE (0x10) | |
115 | ||
116 | #define RDP_CLEAR_BREAK 0xb | |
117 | ||
118 | #define RDP_EXEC 0x10 | |
119 | #define RDP_EXEC_TYPE_SYNC 0 | |
120 | ||
121 | #define RDP_STEP 0x11 | |
122 | ||
123 | #define RDP_INFO 0x12 | |
124 | #define RDP_INFO_ABOUT_STEP 2 | |
125 | #define RDP_INFO_ABOUT_STEP_GT_1 1 | |
126 | #define RDP_INFO_ABOUT_STEP_TO_JMP 2 | |
127 | #define RDP_INFO_ABOUT_STEP_1 4 | |
128 | #define RDP_INFO_ABOUT_TARGET 0 | |
129 | #define RDP_INFO_ABOUT_BREAK 1 | |
130 | #define RDP_INFO_ABOUT_BREAK_COMP 1 | |
131 | #define RDP_INFO_ABOUT_BREAK_RANGE 2 | |
132 | #define RDP_INFO_ABOUT_BREAK_BYTE_READ 4 | |
133 | #define RDP_INFO_ABOUT_BREAK_HALFWORD_READ 8 | |
134 | #define RDP_INFO_ABOUT_BREAK_WORD_READ (1<<4) | |
135 | #define RDP_INFO_ABOUT_BREAK_BYTE_WRITE (1<<5) | |
136 | #define RDP_INFO_ABOUT_BREAK_HALFWORD_WRITE (1<<6) | |
137 | #define RDP_INFO_ABOUT_BREAK_WORD_WRITE (1<<7) | |
138 | #define RDP_INFO_ABOUT_BREAK_MASK (1<<8) | |
139 | #define RDP_INFO_ABOUT_BREAK_THREAD_BREAK (1<<9) | |
140 | #define RDP_INFO_ABOUT_BREAK_THREAD_WATCH (1<<10) | |
141 | #define RDP_INFO_ABOUT_BREAK_COND (1<<11) | |
142 | #define RDP_INFO_VECTOR_CATCH (0x180) | |
143 | #define RDP_INFO_ICEBREAKER (7) | |
144 | #define RDP_INFO_SET_CMDLINE (0x300) | |
145 | ||
146 | #define RDP_SELECT_CONFIG (0x16) | |
147 | #define RDI_ConfigCPU 0 | |
148 | #define RDI_ConfigSystem 1 | |
149 | #define RDI_MatchAny 0 | |
150 | #define RDI_MatchExactly 1 | |
151 | #define RDI_MatchNoEarlier 2 | |
152 | ||
153 | #define RDP_RESET 0x7f | |
154 | ||
155 | /* Returns from RDP */ | |
156 | #define RDP_RES_STOPPED 0x20 | |
157 | #define RDP_RES_SWI 0x21 | |
158 | #define RDP_RES_FATAL 0x5e | |
159 | #define RDP_RES_VALUE 0x5f | |
160 | #define RDP_RES_VALUE_LITTLE_ENDIAN 240 | |
161 | #define RDP_RES_VALUE_BIG_ENDIAN 241 | |
162 | #define RDP_RES_RESET 0x7f | |
163 | #define RDP_RES_AT_BREAKPOINT 143 | |
164 | #define RDP_RES_IDUNNO 0xe6 | |
165 | #define RDP_OSOpReply 0x13 | |
166 | #define RDP_OSOpWord 2 | |
167 | #define RDP_OSOpNothing 0 | |
168 | ||
169 | static int timeout = 2; | |
170 | ||
171 | static char * commandline = NULL; | |
172 | ||
173 | static int | |
174 | remote_rdp_xfer_inferior_memory PARAMS ((CORE_ADDR memaddr, | |
175 | char *myaddr, | |
176 | int len, | |
177 | int write, | |
178 | struct target_ops * target)); | |
179 | ||
180 | ||
181 | /* Stuff for talking to the serial layer. */ | |
182 | ||
183 | static unsigned char | |
184 | get_byte () | |
185 | { | |
186 | int c = SERIAL_READCHAR (io, timeout); | |
187 | ||
188 | if (remote_debug) | |
9846de1b | 189 | fprintf_unfiltered (gdb_stdlog, "[%02x]\n", c); |
c906108c SS |
190 | |
191 | if (c == SERIAL_TIMEOUT) | |
192 | { | |
193 | if (timeout == 0) | |
194 | return (unsigned char) c; | |
195 | ||
196 | error ("Timeout reading from remote_system"); | |
197 | } | |
198 | ||
199 | return c; | |
200 | } | |
201 | ||
202 | /* Note that the target always speaks little-endian to us, | |
203 | even if it's a big endian machine. */ | |
204 | static unsigned int | |
205 | get_word () | |
206 | { | |
207 | unsigned int val = 0; | |
208 | unsigned int c; | |
209 | int n; | |
210 | for (n = 0; n < 4; n++) | |
211 | { | |
212 | c = get_byte (); | |
213 | val |= c << (n * 8); | |
214 | } | |
215 | return val; | |
216 | } | |
217 | ||
218 | static void | |
219 | put_byte (val) | |
220 | char val; | |
221 | { | |
222 | if (remote_debug) | |
9846de1b | 223 | fprintf_unfiltered (gdb_stdlog, "(%02x)\n", val); |
c906108c SS |
224 | SERIAL_WRITE (io, &val, 1); |
225 | } | |
226 | ||
227 | static void | |
228 | put_word (val) | |
229 | int val; | |
230 | { | |
231 | /* We always send in little endian */ | |
232 | unsigned char b[4]; | |
233 | b[0] = val; | |
234 | b[1] = val >> 8; | |
235 | b[2] = val >> 16; | |
236 | b[3] = val >> 24; | |
237 | ||
238 | if (remote_debug) | |
9846de1b | 239 | fprintf_unfiltered (gdb_stdlog, "(%04x)", val); |
c906108c SS |
240 | |
241 | SERIAL_WRITE (io, b, 4); | |
242 | } | |
243 | ||
244 | ||
245 | ||
246 | /* Stuff for talking to the RDP layer. */ | |
247 | ||
248 | /* This is a bit more fancy that need be so that it syncs even in nasty cases. | |
249 | ||
250 | I'be been unable to make it reliably sync up with the change | |
251 | baudrate open command. It likes to sit and say it's been reset, | |
252 | with no more action. So I took all that code out. I'd rather sync | |
253 | reliably at 9600 than wait forever for a possible 19200 connection. | |
254 | ||
255 | */ | |
256 | static void | |
257 | rdp_init (cold, tty) | |
258 | int cold; | |
259 | int tty; | |
260 | { | |
261 | int sync = 0; | |
262 | int type = cold ? RDP_OPEN_TYPE_COLD : RDP_OPEN_TYPE_WARM; | |
263 | int baudtry = 9600; | |
264 | ||
265 | time_t now = time (0); | |
266 | time_t stop_time = now + 10; /* Try and sync for 10 seconds, then give up */ | |
267 | ||
268 | ||
269 | while (time (0) < stop_time && !sync) | |
270 | { | |
271 | int restype; | |
272 | QUIT; | |
273 | ||
274 | SERIAL_FLUSH_INPUT (io); | |
275 | SERIAL_FLUSH_OUTPUT (io); | |
276 | ||
277 | if (tty) | |
278 | printf_unfiltered ("Trying to connect at %d baud.\n", baudtry); | |
279 | ||
280 | /* | |
281 | ** It seems necessary to reset an EmbeddedICE to get it going. | |
282 | ** This has the side benefit of displaying the startup banner. | |
283 | */ | |
284 | if (cold) | |
285 | { | |
286 | put_byte (RDP_RESET); | |
287 | while ((restype = SERIAL_READCHAR (io, 1)) > 0) | |
288 | { | |
289 | switch (restype) | |
290 | { | |
291 | case SERIAL_TIMEOUT: | |
292 | break; | |
293 | case RDP_RESET: | |
294 | /* Sent at start of reset process: ignore */ | |
295 | break; | |
296 | default: | |
297 | printf_unfiltered ("%c", isgraph (restype) ? restype : ' '); | |
298 | break; | |
299 | } | |
300 | } | |
301 | ||
302 | if (restype == 0) | |
303 | { | |
304 | /* Got end-of-banner mark */ | |
305 | printf_filtered ("\n"); | |
306 | } | |
307 | } | |
308 | ||
309 | put_byte (RDP_OPEN); | |
310 | ||
311 | put_byte (type | RDP_OPEN_TYPE_RETURN_SEX ); | |
312 | put_word (0); | |
313 | ||
314 | while (!sync && (restype = SERIAL_READCHAR (io, 1)) > 0) | |
315 | { | |
316 | if (remote_debug) | |
9846de1b | 317 | fprintf_unfiltered (gdb_stdlog, "[%02x]\n", restype); |
c906108c SS |
318 | |
319 | switch (restype) | |
320 | { | |
321 | case SERIAL_TIMEOUT: | |
322 | break; | |
323 | ||
324 | case RDP_RESET: | |
325 | while ((restype = SERIAL_READCHAR (io, 1)) == RDP_RESET) | |
326 | ; | |
327 | do | |
328 | { | |
329 | printf_unfiltered ("%c", isgraph (restype) ? restype : ' '); | |
330 | } | |
331 | while ((restype = SERIAL_READCHAR (io, 1)) > 0); | |
332 | ||
333 | if (tty) | |
334 | { | |
335 | printf_unfiltered ("\nThe board has sent notification that it was reset.\n"); | |
336 | printf_unfiltered ("Waiting for it to settle down...\n"); | |
337 | } | |
338 | sleep (3); | |
339 | if (tty) | |
340 | printf_unfiltered ("\nTrying again.\n"); | |
341 | cold = 0; | |
342 | break; | |
343 | ||
344 | default: | |
345 | break; | |
346 | ||
347 | case RDP_RES_VALUE: | |
348 | { | |
349 | int resval = SERIAL_READCHAR (io, 1); | |
350 | ||
351 | if (remote_debug) | |
9846de1b | 352 | fprintf_unfiltered (gdb_stdlog, "[%02x]\n", resval); |
c906108c SS |
353 | |
354 | switch (resval) | |
355 | { | |
356 | case SERIAL_TIMEOUT: | |
357 | break; | |
358 | case RDP_RES_VALUE_LITTLE_ENDIAN: | |
359 | target_byte_order = LITTLE_ENDIAN; | |
360 | sync = 1; | |
361 | break; | |
362 | case RDP_RES_VALUE_BIG_ENDIAN: | |
363 | target_byte_order = BIG_ENDIAN; | |
364 | sync = 1; | |
365 | break; | |
366 | default: | |
367 | break; | |
368 | } | |
369 | } | |
370 | } | |
371 | } | |
372 | } | |
373 | ||
374 | if (!sync) | |
375 | { | |
376 | error ("Couldn't reset the board, try pressing the reset button"); | |
377 | } | |
378 | } | |
379 | ||
380 | ||
381 | #ifdef ANSI_PROTOTYPES | |
382 | void | |
383 | send_rdp (char *template,...) | |
384 | #else | |
385 | void | |
386 | send_rdp (char *template, va_alist) | |
387 | va_dcl | |
388 | #endif | |
389 | { | |
390 | char buf[200]; | |
391 | char *dst = buf; | |
392 | va_list alist; | |
393 | #ifdef ANSI_PROTOTYPES | |
394 | va_start (alist, template); | |
395 | #else | |
396 | va_start (alist); | |
397 | #endif | |
398 | ||
399 | while (*template) | |
400 | { | |
401 | unsigned int val; | |
402 | int *pi; | |
403 | int *pstat; | |
404 | char *pc; | |
405 | int i; | |
406 | switch (*template++) | |
407 | { | |
408 | case 'b': | |
409 | val = va_arg (alist, int); | |
410 | *dst++ = val; | |
411 | break; | |
412 | case 'w': | |
413 | val = va_arg (alist, int); | |
414 | *dst++ = val; | |
415 | *dst++ = val >> 8; | |
416 | *dst++ = val >> 16; | |
417 | *dst++ = val >> 24; | |
418 | break; | |
419 | case 'S': | |
420 | val = get_byte (); | |
421 | if (val != RDP_RES_VALUE) | |
422 | { | |
423 | printf_unfiltered ("got bad res value of %d, %x\n", val, val); | |
424 | } | |
425 | break; | |
426 | case 'V': | |
427 | pstat = va_arg (alist, int *); | |
428 | pi = va_arg (alist, int *); | |
429 | ||
430 | *pstat = get_byte (); | |
431 | /* Check the result was zero, if not read the syndrome */ | |
432 | if (*pstat) | |
433 | { | |
434 | *pi = get_word (); | |
435 | } | |
436 | break; | |
437 | case 'Z': | |
438 | /* Check the result code */ | |
439 | switch (get_byte ()) | |
440 | { | |
441 | case 0: | |
442 | /* Success */ | |
443 | break; | |
444 | case 253: | |
445 | /* Target can't do it; never mind */ | |
446 | printf_unfiltered ("RDP: Insufficient privilege\n"); | |
447 | return; | |
448 | case 254: | |
449 | /* Target can't do it; never mind */ | |
450 | printf_unfiltered ("RDP: Unimplemented message\n"); | |
451 | return; | |
452 | case 255: | |
453 | error ("Command garbled"); | |
454 | break; | |
455 | default: | |
456 | error ("Corrupt reply from target"); | |
457 | break; | |
458 | } | |
459 | break; | |
460 | case 'W': | |
461 | /* Read a word from the target */ | |
462 | pi = va_arg (alist, int *); | |
463 | *pi = get_word (); | |
464 | break; | |
465 | case 'P': | |
466 | /* Read in some bytes from the target. */ | |
467 | pc = va_arg (alist, char *); | |
468 | val = va_arg (alist, int); | |
469 | for (i = 0; i < val; i++) | |
470 | { | |
471 | pc[i] = get_byte (); | |
472 | } | |
473 | break; | |
474 | case 'p': | |
475 | /* send what's being pointed at */ | |
476 | pc = va_arg (alist, char *); | |
477 | val = va_arg (alist, int); | |
478 | dst = buf; | |
479 | SERIAL_WRITE (io, pc, val); | |
480 | break; | |
481 | case '-': | |
482 | /* Send whats in the queue */ | |
483 | if (dst != buf) | |
484 | { | |
485 | SERIAL_WRITE (io, buf, dst - buf); | |
486 | dst = buf; | |
487 | } | |
488 | break; | |
489 | case 'B': | |
490 | pi = va_arg (alist, int *); | |
491 | *pi = get_byte (); | |
492 | break; | |
493 | default: | |
494 | abort (); | |
495 | } | |
496 | } | |
497 | va_end (args); | |
498 | ||
499 | if (dst != buf) | |
500 | abort (); | |
501 | } | |
502 | ||
503 | ||
504 | static int | |
505 | rdp_write (memaddr, buf, len) | |
506 | CORE_ADDR memaddr; | |
507 | char *buf; | |
508 | int len; | |
509 | { | |
510 | int res; | |
511 | int val; | |
512 | ||
513 | send_rdp ("bww-p-SV", RDP_MEM_WRITE, memaddr, len, buf, len, &res, &val); | |
514 | ||
515 | if (res) | |
516 | { | |
517 | return val; | |
518 | } | |
519 | return len; | |
520 | } | |
521 | ||
522 | ||
523 | static int | |
524 | rdp_read (memaddr, buf, len) | |
525 | CORE_ADDR memaddr; | |
526 | char *buf; | |
527 | int len; | |
528 | { | |
529 | int res; | |
530 | int val; | |
531 | send_rdp ("bww-S-P-V", | |
532 | RDP_MEM_READ, memaddr, len, | |
533 | buf, len, | |
534 | &res, &val); | |
535 | if (res) | |
536 | { | |
537 | return val; | |
538 | } | |
539 | return len; | |
540 | } | |
541 | ||
542 | static void | |
543 | rdp_fetch_one_register (mask, buf) | |
544 | int mask; | |
545 | char *buf; | |
546 | { | |
547 | int val; | |
548 | send_rdp ("bbw-SWZ", RDP_CPU_READ, RDP_CPU_READWRITE_MODE_CURRENT, mask, &val); | |
549 | store_signed_integer (buf, 4, val); | |
550 | } | |
551 | ||
552 | static void | |
553 | rdp_fetch_one_fpu_register (mask, buf) | |
554 | int mask; | |
555 | char *buf; | |
556 | { | |
557 | #if 0 | |
558 | /* !!! Since the PIE board doesn't work as documented, | |
559 | and it doesn't have FPU hardware anyway and since it | |
560 | slows everything down, I've disabled this. */ | |
561 | int val; | |
562 | if (mask == RDP_FPU_READWRITE_MASK_FPS) | |
563 | { | |
564 | /* this guy is only a word */ | |
565 | send_rdp ("bbw-SWZ", RDP_COPRO_READ, FPU_COPRO_NUMBER, mask, &val); | |
566 | store_signed_integer (buf, 4, val); | |
567 | } | |
568 | else | |
569 | { | |
570 | /* There are 12 bytes long | |
571 | !! fixme about endianness | |
572 | */ | |
573 | int dummy; /* I've seen these come back as four words !! */ | |
574 | send_rdp ("bbw-SWWWWZ", RDP_COPRO_READ, FPU_COPRO_NUMBER, mask, buf + 0, buf + 4, buf + 8, &dummy); | |
575 | } | |
576 | #endif | |
577 | memset (buf, 0, MAX_REGISTER_RAW_SIZE); | |
578 | } | |
579 | ||
580 | ||
581 | static void | |
582 | rdp_store_one_register (mask, buf) | |
583 | int mask; | |
584 | char *buf; | |
585 | { | |
586 | int val = extract_unsigned_integer (buf, 4); | |
587 | ||
588 | send_rdp ("bbww-SZ", | |
589 | RDP_CPU_WRITE, RDP_CPU_READWRITE_MODE_CURRENT, mask, val); | |
590 | } | |
591 | ||
592 | ||
593 | static void | |
594 | rdp_store_one_fpu_register (mask, buf) | |
595 | int mask; | |
596 | char *buf; | |
597 | { | |
598 | #if 0 | |
599 | /* See comment in fetch_one_fpu_register */ | |
600 | if (mask == RDP_FPU_READWRITE_MASK_FPS) | |
601 | { | |
602 | int val = extract_unsigned_integer (buf, 4); | |
603 | /* this guy is only a word */ | |
604 | send_rdp ("bbww-SZ", RDP_COPRO_WRITE, | |
605 | FPU_COPRO_NUMBER, | |
606 | mask, val); | |
607 | } | |
608 | else | |
609 | { | |
610 | /* There are 12 bytes long | |
611 | !! fixme about endianness | |
612 | */ | |
613 | int dummy = 0; | |
614 | /* I've seen these come as four words, not the three advertized !! */ | |
615 | printf ("Sending mask %x\n", mask); | |
616 | send_rdp ("bbwwwww-SZ", | |
617 | RDP_COPRO_WRITE, | |
618 | FPU_COPRO_NUMBER, | |
619 | mask, | |
620 | *(int *) (buf + 0), | |
621 | *(int *) (buf + 4), | |
622 | *(int *) (buf + 8), | |
623 | 0); | |
624 | ||
625 | printf ("done mask %x\n", mask); | |
626 | } | |
627 | #endif | |
628 | } | |
629 | \f | |
630 | ||
631 | /* Convert between GDB requests and the RDP layer. */ | |
632 | ||
633 | static void | |
634 | remote_rdp_fetch_register (regno) | |
635 | int regno; | |
636 | { | |
637 | if (regno == -1) | |
638 | { | |
639 | for (regno = 0; regno < NUM_REGS; regno++) | |
640 | remote_rdp_fetch_register (regno); | |
641 | } | |
642 | else | |
643 | { | |
644 | char buf[MAX_REGISTER_RAW_SIZE]; | |
645 | if (regno < 15) | |
646 | rdp_fetch_one_register (1 << regno, buf); | |
647 | else if (regno == PC_REGNUM) | |
648 | rdp_fetch_one_register (RDP_CPU_READWRITE_MASK_PC, buf); | |
649 | else if (regno == PS_REGNUM) | |
650 | rdp_fetch_one_register (RDP_CPU_READWRITE_MASK_CPSR, buf); | |
651 | else if (regno == FPS_REGNUM) | |
652 | rdp_fetch_one_fpu_register (RDP_FPU_READWRITE_MASK_FPS, buf); | |
653 | else if (regno >= F0_REGNUM && regno <= F7_REGNUM) | |
654 | rdp_fetch_one_fpu_register (1 << (regno - F0_REGNUM), buf); | |
655 | else | |
656 | { | |
657 | printf ("Help me with fetch reg %d\n", regno); | |
658 | } | |
659 | supply_register (regno, buf); | |
660 | } | |
661 | } | |
662 | ||
663 | ||
664 | static void | |
665 | remote_rdp_store_register (regno) | |
666 | int regno; | |
667 | { | |
668 | if (regno == -1) | |
669 | { | |
670 | for (regno = 0; regno < NUM_REGS; regno++) | |
671 | remote_rdp_store_register (regno); | |
672 | } | |
673 | else | |
674 | { | |
675 | char tmp[MAX_REGISTER_RAW_SIZE]; | |
676 | read_register_gen (regno, tmp); | |
677 | if (regno < 15) | |
678 | rdp_store_one_register (1 << regno, tmp); | |
679 | else if (regno == PC_REGNUM) | |
680 | rdp_store_one_register (RDP_CPU_READWRITE_MASK_PC, tmp); | |
681 | else if (regno == PS_REGNUM) | |
682 | rdp_store_one_register (RDP_CPU_READWRITE_MASK_CPSR, tmp); | |
683 | else if (regno >= F0_REGNUM && regno <= F7_REGNUM) | |
684 | rdp_store_one_fpu_register (1 << (regno - F0_REGNUM), tmp); | |
685 | else | |
686 | { | |
687 | printf ("Help me with reg %d\n", regno); | |
688 | } | |
689 | } | |
690 | } | |
691 | ||
692 | static void | |
693 | remote_rdp_kill () | |
694 | { | |
695 | callback->shutdown (callback); | |
696 | } | |
697 | ||
698 | ||
699 | static void | |
700 | rdp_info () | |
701 | { | |
702 | send_rdp ("bw-S-W-Z", RDP_INFO, RDP_INFO_ABOUT_STEP, | |
703 | &ds.step_info); | |
704 | send_rdp ("bw-S-W-Z", RDP_INFO, RDP_INFO_ABOUT_BREAK, | |
705 | &ds.break_info); | |
706 | send_rdp ("bw-S-WW-Z", RDP_INFO, RDP_INFO_ABOUT_TARGET, | |
707 | &ds.target_info, | |
708 | &ds.model_info); | |
709 | ||
710 | ds.can_step = ds.step_info & RDP_INFO_ABOUT_STEP_1; | |
711 | ||
712 | ds.rdi_level = (ds.target_info >> 5) & 3; | |
713 | } | |
714 | ||
715 | ||
716 | static void | |
717 | rdp_execute_start () | |
718 | { | |
719 | /* Start it off, but don't wait for it */ | |
720 | send_rdp ("bb-", RDP_EXEC, RDP_EXEC_TYPE_SYNC); | |
721 | } | |
722 | ||
723 | ||
724 | static void | |
725 | rdp_set_command_line (command, args) | |
726 | char * command; | |
727 | char * args; | |
728 | { | |
729 | /* | |
730 | ** We could use RDP_INFO_SET_CMDLINE to send this, but EmbeddedICE systems | |
731 | ** don't implement that, and get all confused at the unexpected text. | |
732 | ** Instead, just keep a copy, and send it when the target does a SWI_GetEnv | |
733 | */ | |
734 | ||
735 | if (commandline != NULL) | |
736 | free (commandline); | |
737 | ||
738 | commandline = malloc (strlen (command) + strlen (args) + 2); | |
739 | if (commandline != NULL) | |
740 | { | |
741 | strcpy (commandline, command); | |
742 | strcat (commandline, " "); | |
743 | strcat (commandline, args); | |
744 | } | |
745 | } | |
746 | ||
747 | static void | |
748 | rdp_catch_vectors () | |
749 | { | |
750 | /* | |
751 | ** We want the target monitor to intercept the abort vectors | |
752 | ** i.e. stop the program if any of these are used. | |
753 | */ | |
754 | send_rdp ("bww-SZ", RDP_INFO, RDP_INFO_VECTOR_CATCH, | |
755 | /* | |
756 | ** Specify a bitmask including | |
757 | ** the reset vector | |
758 | ** the undefined instruction vector | |
759 | ** the prefetch abort vector | |
760 | ** the data abort vector | |
761 | ** the address exception vector | |
762 | */ | |
763 | (1<<0)|(1<<1)|(1<<3)|(1<<4)|(1<<5) | |
764 | ); | |
765 | } | |
766 | ||
767 | ||
768 | ||
769 | #define a_byte 1 | |
770 | #define a_word 2 | |
771 | #define a_string 3 | |
772 | ||
773 | ||
774 | typedef struct | |
775 | { | |
776 | CORE_ADDR n; | |
777 | const char *s; | |
778 | } | |
779 | argsin; | |
780 | ||
781 | #define ABYTE 1 | |
782 | #define AWORD 2 | |
783 | #define ASTRING 3 | |
784 | #define ADDRLEN 4 | |
785 | ||
786 | #define SWI_WriteC 0x0 | |
787 | #define SWI_Write0 0x2 | |
788 | #define SWI_ReadC 0x4 | |
789 | #define SWI_CLI 0x5 | |
790 | #define SWI_GetEnv 0x10 | |
791 | #define SWI_Exit 0x11 | |
792 | #define SWI_EnterOS 0x16 | |
793 | ||
794 | #define SWI_GetErrno 0x60 | |
795 | #define SWI_Clock 0x61 | |
796 | ||
797 | #define SWI_Time 0x63 | |
798 | #define SWI_Remove 0x64 | |
799 | #define SWI_Rename 0x65 | |
800 | #define SWI_Open 0x66 | |
801 | ||
802 | #define SWI_Close 0x68 | |
803 | #define SWI_Write 0x69 | |
804 | #define SWI_Read 0x6a | |
805 | #define SWI_Seek 0x6b | |
806 | #define SWI_Flen 0x6c | |
807 | ||
808 | #define SWI_IsTTY 0x6e | |
809 | #define SWI_TmpNam 0x6f | |
810 | #define SWI_InstallHandler 0x70 | |
811 | #define SWI_GenerateError 0x71 | |
812 | ||
813 | ||
814 | #ifndef O_BINARY | |
815 | #define O_BINARY 0 | |
816 | #endif | |
817 | ||
818 | static int translate_open_mode[] = | |
819 | { | |
820 | O_RDONLY, /* "r" */ | |
821 | O_RDONLY+O_BINARY, /* "rb" */ | |
822 | O_RDWR, /* "r+" */ | |
823 | O_RDWR +O_BINARY, /* "r+b" */ | |
824 | O_WRONLY +O_CREAT+O_TRUNC, /* "w" */ | |
825 | O_WRONLY+O_BINARY+O_CREAT+O_TRUNC, /* "wb" */ | |
826 | O_RDWR +O_CREAT+O_TRUNC, /* "w+" */ | |
827 | O_RDWR +O_BINARY+O_CREAT+O_TRUNC, /* "w+b" */ | |
828 | O_WRONLY +O_APPEND+O_CREAT,/* "a" */ | |
829 | O_WRONLY+O_BINARY+O_APPEND+O_CREAT,/* "ab" */ | |
830 | O_RDWR +O_APPEND+O_CREAT,/* "a+" */ | |
831 | O_RDWR +O_BINARY+O_APPEND+O_CREAT /* "a+b" */ | |
832 | }; | |
833 | ||
834 | static int | |
835 | exec_swi (swi, args) | |
836 | int swi; | |
837 | argsin *args; | |
838 | { | |
839 | int i; | |
840 | char c; | |
841 | switch (swi) | |
842 | { | |
843 | case SWI_WriteC: | |
844 | callback->write_stdout (callback, &c, 1); | |
845 | return 0; | |
846 | case SWI_Write0: | |
847 | for (i = 0; i < args->n; i++) | |
848 | callback->write_stdout (callback, args->s, strlen (args->s)); | |
849 | return 0; | |
850 | case SWI_ReadC: | |
851 | callback->read_stdin (callback, &c, 1); | |
852 | args->n = c; | |
853 | return 1; | |
854 | case SWI_CLI: | |
855 | args->n = callback->system (callback, args->s); | |
856 | return 1; | |
857 | case SWI_GetErrno: | |
858 | args->n = callback->get_errno (callback); | |
859 | return 1; | |
860 | case SWI_Time: | |
861 | args->n = callback->time (callback, NULL); | |
862 | return 1; | |
863 | ||
864 | case SWI_Clock : | |
865 | /* return number of centi-seconds... */ | |
866 | args->n = | |
867 | #ifdef CLOCKS_PER_SEC | |
868 | (CLOCKS_PER_SEC >= 100) | |
869 | ? (clock() / (CLOCKS_PER_SEC / 100)) | |
870 | : ((clock() * 100) / CLOCKS_PER_SEC) ; | |
871 | #else | |
872 | /* presume unix... clock() returns microseconds */ | |
873 | clock() / 10000 ; | |
874 | #endif | |
875 | return 1 ; | |
876 | ||
877 | case SWI_Remove: | |
878 | args->n = callback->unlink (callback, args->s); | |
879 | return 1; | |
880 | case SWI_Rename: | |
881 | args->n = callback->rename (callback, args[0].s, args[1].s); | |
882 | return 1; | |
883 | ||
884 | case SWI_Open: | |
885 | /* Now we need to decode the Demon open mode */ | |
886 | i = translate_open_mode[args[1].n]; | |
887 | ||
888 | /* Filename ":tt" is special: it denotes stdin/out */ | |
889 | if (strcmp(args->s,":tt")==0) | |
890 | { | |
891 | if (i == O_RDONLY ) /* opening tty "r" */ | |
892 | args->n = 0 /* stdin */ ; | |
893 | else | |
894 | args->n = 1 /* stdout */ ; | |
895 | } | |
896 | else | |
897 | args->n = callback->open (callback, args->s, i); | |
898 | return 1; | |
899 | ||
900 | case SWI_Close: | |
901 | args->n = callback->close (callback, args->n); | |
902 | return 1; | |
903 | ||
904 | case SWI_Write: | |
905 | /* Return the number of bytes *not* written */ | |
906 | args->n = args[1].n - | |
907 | callback->write (callback, args[0].n, args[1].s, args[1].n); | |
908 | return 1; | |
909 | ||
910 | case SWI_Read: | |
911 | { | |
912 | char *copy = alloca (args[2].n); | |
913 | int done = callback->read (callback, args[0].n, copy, args[2].n); | |
914 | if (done > 0) | |
915 | remote_rdp_xfer_inferior_memory (args[1].n, copy, done, 1, 0); | |
916 | args->n = args[2].n-done; | |
917 | return 1; | |
918 | } | |
919 | ||
920 | case SWI_Seek: | |
921 | /* Return non-zero on failure */ | |
922 | args->n = callback->lseek (callback, args[0].n, args[1].n, 0) < 0; | |
923 | return 1; | |
924 | ||
925 | case SWI_Flen: | |
926 | { | |
927 | long old = callback->lseek (callback, args->n, 0, SEEK_CUR); | |
928 | args->n = callback->lseek (callback, args->n, 0, SEEK_END); | |
929 | callback->lseek (callback, args->n, old, 0); | |
930 | return 1; | |
931 | } | |
932 | ||
933 | case SWI_IsTTY: | |
934 | args->n = callback->isatty (callback, args->n); | |
935 | return 1; | |
936 | ||
937 | case SWI_GetEnv: | |
938 | if (commandline != NULL) | |
939 | { | |
940 | int len = strlen (commandline); | |
941 | if (len > 255) | |
942 | { | |
943 | len = 255; | |
944 | commandline [255]='\0'; | |
945 | } | |
946 | remote_rdp_xfer_inferior_memory (args[0].n, | |
947 | commandline, len+1, 1, 0); | |
948 | } | |
949 | else | |
950 | remote_rdp_xfer_inferior_memory (args[0].n, "", 1, 1, 0); | |
951 | return 1; | |
952 | ||
953 | default: | |
954 | return 0; | |
955 | } | |
956 | } | |
957 | ||
958 | ||
959 | static void | |
960 | handle_swi () | |
961 | { | |
962 | argsin args[3]; | |
963 | char *buf; | |
964 | int len; | |
965 | int count = 0; | |
966 | ||
967 | int swino = get_word (); | |
968 | int type = get_byte (); | |
969 | while (type != 0) | |
970 | { | |
971 | switch (type & 0x3) | |
972 | { | |
973 | case ABYTE: | |
974 | args[count].n = get_byte (); | |
975 | break; | |
976 | ||
977 | case AWORD: | |
978 | args[count].n = get_word (); | |
979 | break; | |
980 | ||
981 | case ASTRING: | |
982 | /* If the word is under 32 bytes it will be sent otherwise | |
983 | an address to it is passed. Also: Special case of 255 */ | |
984 | ||
985 | len = get_byte (); | |
986 | if (len > 32) | |
987 | { | |
988 | if (len == 255) | |
989 | { | |
990 | len = get_word (); | |
991 | } | |
992 | buf = alloca (len); | |
993 | remote_rdp_xfer_inferior_memory (get_word (), | |
994 | buf, | |
995 | len, | |
996 | 0, | |
997 | 0); | |
998 | } | |
999 | else | |
1000 | { | |
1001 | int i; | |
1002 | buf = alloca (len + 1); | |
1003 | for (i = 0; i < len; i++) | |
1004 | buf[i] = get_byte (); | |
1005 | buf[i] = 0; | |
1006 | } | |
1007 | args[count].n = len; | |
1008 | args[count].s = buf; | |
1009 | break; | |
1010 | ||
1011 | default: | |
1012 | error ("Unimplented SWI argument"); | |
1013 | } | |
1014 | ||
1015 | type = type >> 2; | |
1016 | count++; | |
1017 | } | |
1018 | ||
1019 | if (exec_swi (swino, args)) | |
1020 | { | |
1021 | /* We have two options here reply with either a byte or a word | |
1022 | which is stored in args[0].n. There is no harm in replying with | |
1023 | a word all the time, so thats what I do! */ | |
1024 | send_rdp ("bbw-", RDP_OSOpReply, RDP_OSOpWord, args[0].n); | |
1025 | } | |
1026 | else | |
1027 | { | |
1028 | send_rdp ("bb-", RDP_OSOpReply, RDP_OSOpNothing); | |
1029 | } | |
1030 | } | |
1031 | ||
1032 | static void | |
1033 | rdp_execute_finish () | |
1034 | { | |
1035 | int running = 1; | |
1036 | ||
1037 | while (running) | |
1038 | { | |
1039 | int res; | |
1040 | res = SERIAL_READCHAR (io, 1); | |
1041 | while (res == SERIAL_TIMEOUT) | |
1042 | { | |
1043 | QUIT; | |
1044 | printf_filtered ("Waiting for target..\n"); | |
1045 | res = SERIAL_READCHAR (io, 1); | |
1046 | } | |
1047 | ||
1048 | switch (res) | |
1049 | { | |
1050 | case RDP_RES_SWI: | |
1051 | handle_swi (); | |
1052 | break; | |
1053 | case RDP_RES_VALUE: | |
1054 | send_rdp ("B", &ds.rdi_stopped_status); | |
1055 | running = 0; | |
1056 | break; | |
1057 | case RDP_RESET: | |
1058 | printf_filtered ("Target reset\n"); | |
1059 | running = 0; | |
1060 | break; | |
1061 | default: | |
1062 | printf_filtered ("Ignoring %x\n", res); | |
1063 | break; | |
1064 | } | |
1065 | } | |
1066 | } | |
1067 | ||
1068 | ||
1069 | static void | |
1070 | rdp_execute () | |
1071 | { | |
1072 | rdp_execute_start (); | |
1073 | rdp_execute_finish (); | |
1074 | } | |
1075 | ||
1076 | static int | |
1077 | remote_rdp_insert_breakpoint (addr, save) | |
1078 | CORE_ADDR addr; | |
1079 | char *save; | |
1080 | { | |
1081 | int res; | |
1082 | if (ds.rdi_level > 0) | |
1083 | { | |
1084 | send_rdp ("bwb-SWB", | |
1085 | RDP_SET_BREAK, | |
1086 | addr, | |
1087 | RDP_SET_BREAK_TYPE_PC_EQUAL | RDP_SET_BREAK_TYPE_GET_HANDLE, | |
1088 | save, | |
1089 | &res); | |
1090 | } | |
1091 | else | |
1092 | { | |
1093 | send_rdp ("bwb-SB", | |
1094 | RDP_SET_BREAK, | |
1095 | addr, | |
1096 | RDP_SET_BREAK_TYPE_PC_EQUAL, | |
1097 | &res); | |
1098 | } | |
1099 | return res; | |
1100 | } | |
1101 | ||
1102 | static int | |
1103 | remote_rdp_remove_breakpoint (addr, save) | |
1104 | CORE_ADDR addr; | |
1105 | char *save; | |
1106 | { | |
1107 | int res; | |
1108 | if (ds.rdi_level > 0) | |
1109 | { | |
1110 | send_rdp ("b-p-S-B", | |
1111 | RDP_CLEAR_BREAK, | |
1112 | save, 4, | |
1113 | &res); | |
1114 | } | |
1115 | else | |
1116 | { | |
1117 | send_rdp ("bw-S-B", | |
1118 | RDP_CLEAR_BREAK, | |
1119 | addr, | |
1120 | &res); | |
1121 | } | |
1122 | return res; | |
1123 | } | |
1124 | ||
1125 | static void | |
1126 | rdp_step () | |
1127 | { | |
1128 | if (ds.can_step && 0) | |
1129 | { | |
1130 | /* The pie board can't do steps so I can't test this, and | |
1131 | the other code will always work. */ | |
1132 | int status; | |
1133 | send_rdp ("bbw-S-B", | |
1134 | RDP_STEP, 0, 1, | |
1135 | &status); | |
1136 | } | |
1137 | else | |
1138 | { | |
1139 | char handle[4]; | |
1140 | CORE_ADDR pc = read_register (PC_REGNUM); | |
1141 | pc = arm_get_next_pc (pc); | |
1142 | remote_rdp_insert_breakpoint (pc, &handle); | |
1143 | rdp_execute (); | |
1144 | remote_rdp_remove_breakpoint (pc, &handle); | |
1145 | } | |
1146 | } | |
1147 | ||
1148 | static void | |
1149 | remote_rdp_open (args, from_tty) | |
1150 | char *args; | |
1151 | int from_tty; | |
1152 | { | |
1153 | int not_icebreaker; | |
1154 | ||
1155 | if (!args) | |
1156 | error_no_arg ("serial port device name"); | |
1157 | ||
1158 | baud_rate = 9600; | |
1159 | ||
1160 | target_preopen (from_tty); | |
1161 | ||
1162 | io = SERIAL_OPEN (args); | |
1163 | ||
1164 | if (!io) | |
1165 | perror_with_name (args); | |
1166 | ||
1167 | SERIAL_RAW (io); | |
1168 | ||
1169 | rdp_init (1, from_tty); | |
1170 | ||
1171 | ||
1172 | if (from_tty) | |
1173 | { | |
1174 | printf_unfiltered ("Remote RDP debugging using %s at %d baud\n", args, baud_rate); | |
1175 | } | |
1176 | ||
1177 | rdp_info (); | |
1178 | ||
1179 | /* Need to set up the vector interception state */ | |
1180 | rdp_catch_vectors(); | |
1181 | ||
1182 | /* | |
1183 | ** If it's an EmbeddedICE, we need to set the processor config. | |
1184 | ** Assume we can always have ARM7TDI... | |
1185 | */ | |
1186 | send_rdp ("bw-SB", RDP_INFO, RDP_INFO_ICEBREAKER, & not_icebreaker); | |
1187 | if (!not_icebreaker) | |
1188 | { | |
1189 | const char * CPU = "ARM7TDI"; | |
1190 | int ICEversion; | |
1191 | int len = strlen (CPU); | |
1192 | ||
1193 | send_rdp ("bbbbw-p-SWZ", | |
1194 | RDP_SELECT_CONFIG, | |
1195 | RDI_ConfigCPU, /* Aspect: set the CPU */ | |
1196 | len, /* The number of bytes in the name */ | |
1197 | RDI_MatchAny, /* We'll take whatever we get */ | |
1198 | 0, /* We'll take whatever version's there */ | |
1199 | CPU,len, | |
1200 | & ICEversion); | |
1201 | } | |
1202 | ||
1203 | /* command line initialised on 'run'*/ | |
1204 | ||
1205 | push_target (& remote_rdp_ops); | |
1206 | ||
1207 | callback->init (callback); | |
1208 | flush_cached_frames (); | |
1209 | registers_changed (); | |
1210 | stop_pc = read_pc (); | |
1211 | set_current_frame (create_new_frame (read_fp (), stop_pc)); | |
1212 | select_frame (get_current_frame (), 0); | |
1213 | print_stack_frame (selected_frame, -1, 1); | |
1214 | } | |
1215 | ||
1216 | ||
1217 | ||
1218 | /* Close out all files and local state before this target loses control. */ | |
1219 | ||
1220 | static void | |
1221 | remote_rdp_close (quitting) | |
1222 | int quitting; | |
1223 | { | |
1224 | callback->shutdown (callback); | |
1225 | if (io) | |
1226 | SERIAL_CLOSE (io); | |
1227 | io = 0; | |
1228 | } | |
1229 | ||
1230 | ||
1231 | /* Resume execution of the target process. STEP says whether to single-step | |
1232 | or to run free; SIGGNAL is the signal value (e.g. SIGINT) to be given | |
1233 | to the target, or zero for no signal. */ | |
1234 | ||
1235 | static void | |
1236 | remote_rdp_resume (pid, step, siggnal) | |
1237 | int pid, step; | |
1238 | enum target_signal siggnal; | |
1239 | { | |
1240 | if (step) | |
1241 | rdp_step (); | |
1242 | else | |
1243 | rdp_execute (); | |
1244 | } | |
1245 | ||
1246 | /* Wait for inferior process to do something. Return pid of child, | |
1247 | or -1 in case of error; store status through argument pointer STATUS, | |
1248 | just as `wait' would. */ | |
1249 | ||
1250 | static int | |
1251 | remote_rdp_wait (pid, status) | |
1252 | int pid; | |
1253 | struct target_waitstatus *status; | |
1254 | { | |
1255 | switch (ds.rdi_stopped_status) | |
1256 | { | |
1257 | default: | |
1258 | case RDP_RES_RESET: | |
1259 | case RDP_RES_SWI: | |
1260 | status->kind = TARGET_WAITKIND_EXITED; | |
1261 | status->value.integer = read_register (0); | |
1262 | break; | |
1263 | case RDP_RES_AT_BREAKPOINT: | |
1264 | status->kind = TARGET_WAITKIND_STOPPED; | |
1265 | /* The signal in sigrc is a host signal. That probably | |
1266 | should be fixed. */ | |
1267 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1268 | break; | |
1269 | #if 0 | |
1270 | case rdp_signalled: | |
1271 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
1272 | /* The signal in sigrc is a host signal. That probably | |
1273 | should be fixed. */ | |
1274 | status->value.sig = target_signal_from_host (sigrc); | |
1275 | break; | |
1276 | #endif | |
1277 | } | |
1278 | ||
1279 | return inferior_pid; | |
1280 | } | |
1281 | ||
1282 | /* Get ready to modify the registers array. On machines which store | |
1283 | individual registers, this doesn't need to do anything. On machines | |
1284 | which store all the registers in one fell swoop, this makes sure | |
1285 | that registers contains all the registers from the program being | |
1286 | debugged. */ | |
1287 | ||
1288 | static void | |
1289 | remote_rdp_prepare_to_store () | |
1290 | { | |
1291 | /* Do nothing, since we can store individual regs */ | |
1292 | } | |
1293 | ||
1294 | static int | |
1295 | remote_rdp_xfer_inferior_memory (memaddr, myaddr, len, write, target) | |
1296 | CORE_ADDR memaddr; | |
1297 | char *myaddr; | |
1298 | int len; | |
1299 | int write; | |
1300 | struct target_ops *target; /* ignored */ | |
1301 | { | |
1302 | /* I infer from D Taylor's code that there's a limit on the amount | |
1303 | we can transfer in one chunk.. */ | |
1304 | int done = 0; | |
1305 | while (done < len) | |
1306 | { | |
1307 | int justdone; | |
1308 | int thisbite = len - done; | |
1309 | if (thisbite > RDP_MOUTHFULL) | |
1310 | thisbite = RDP_MOUTHFULL; | |
1311 | ||
1312 | QUIT; | |
1313 | ||
1314 | if (write) | |
1315 | { | |
1316 | justdone = rdp_write (memaddr + done, myaddr + done, thisbite); | |
1317 | } | |
1318 | else | |
1319 | { | |
1320 | justdone = rdp_read (memaddr + done, myaddr + done, thisbite); | |
1321 | } | |
1322 | ||
1323 | done += justdone; | |
1324 | ||
1325 | if (justdone != thisbite) | |
1326 | break; | |
1327 | } | |
1328 | return done; | |
1329 | } | |
1330 | ||
1331 | ||
1332 | ||
1333 | struct yn | |
1334 | { | |
1335 | const char *name; | |
1336 | int bit; | |
1337 | }; | |
1338 | static struct yn stepinfo[] = | |
1339 | { | |
1340 | {"Step more than one instruction", RDP_INFO_ABOUT_STEP_GT_1}, | |
1341 | {"Step to jump", RDP_INFO_ABOUT_STEP_TO_JMP}, | |
1342 | {"Step one instruction", RDP_INFO_ABOUT_STEP_1}, | |
1343 | {0} | |
1344 | }; | |
1345 | ||
1346 | static struct yn breakinfo[] = | |
1347 | { | |
1348 | {"comparison breakpoints supported", RDP_INFO_ABOUT_BREAK_COMP}, | |
1349 | {"range breakpoints supported", RDP_INFO_ABOUT_BREAK_RANGE}, | |
1350 | {"watchpoints for byte reads supported", RDP_INFO_ABOUT_BREAK_BYTE_READ}, | |
1351 | {"watchpoints for half-word reads supported", RDP_INFO_ABOUT_BREAK_HALFWORD_READ}, | |
1352 | {"watchpoints for word reads supported", RDP_INFO_ABOUT_BREAK_WORD_READ}, | |
1353 | {"watchpoints for byte writes supported", RDP_INFO_ABOUT_BREAK_BYTE_WRITE}, | |
1354 | {"watchpoints for half-word writes supported", RDP_INFO_ABOUT_BREAK_HALFWORD_WRITE}, | |
1355 | {"watchpoints for word writes supported", RDP_INFO_ABOUT_BREAK_WORD_WRITE}, | |
1356 | {"mask break/watch-points supported", RDP_INFO_ABOUT_BREAK_MASK}, | |
1357 | {"thread-specific breakpoints supported", RDP_INFO_ABOUT_BREAK_THREAD_BREAK}, | |
1358 | {"thread-specific watchpoints supported", RDP_INFO_ABOUT_BREAK_THREAD_WATCH}, | |
1359 | {"conditional breakpoints supported", RDP_INFO_ABOUT_BREAK_COND}, | |
1360 | {0} | |
1361 | }; | |
1362 | ||
1363 | ||
1364 | static void | |
1365 | dump_bits (t, info) | |
1366 | struct yn *t; | |
1367 | int info; | |
1368 | { | |
1369 | while (t->name) | |
1370 | { | |
1371 | printf_unfiltered (" %-45s : %s\n", t->name, (info & t->bit) ? "Yes" : "No"); | |
1372 | t++; | |
1373 | } | |
1374 | } | |
1375 | ||
1376 | static void | |
1377 | remote_rdp_files_info (target) | |
1378 | struct target_ops *target; | |
1379 | { | |
1380 | printf_filtered ("Target capabilities:\n"); | |
1381 | dump_bits (stepinfo, ds.step_info); | |
1382 | dump_bits (breakinfo, ds.break_info); | |
1383 | printf_unfiltered ("target level RDI %x\n", (ds.target_info >> 5) & 3); | |
1384 | } | |
1385 | ||
1386 | ||
1387 | static void | |
1388 | remote_rdp_create_inferior (exec_file, allargs, env) | |
1389 | char * exec_file; | |
1390 | char * allargs; | |
1391 | char ** env; | |
1392 | { | |
1393 | CORE_ADDR entry_point; | |
1394 | ||
1395 | if (exec_file == 0 || exec_bfd == 0) | |
1396 | error ("No executable file specified."); | |
1397 | ||
1398 | entry_point = (CORE_ADDR) bfd_get_start_address (exec_bfd); | |
1399 | ||
1400 | remote_rdp_kill (); | |
1401 | remove_breakpoints (); | |
1402 | init_wait_for_inferior (); | |
1403 | ||
1404 | /* This gives us a chance to set up the command line */ | |
1405 | rdp_set_command_line (exec_file, allargs); | |
1406 | ||
1407 | inferior_pid = 42; | |
1408 | insert_breakpoints (); /* Needed to get correct instruction in cache */ | |
1409 | ||
1410 | /* | |
1411 | ** RDP targets don't provide any facility to set the top of memory, | |
1412 | ** so we don't bother to look for MEMSIZE in the environment. | |
1413 | */ | |
1414 | ||
1415 | /* Let's go! */ | |
1416 | proceed (entry_point, TARGET_SIGNAL_DEFAULT, 0); | |
1417 | } | |
1418 | ||
1419 | /* Accept any stray run/attach commands */ | |
1420 | static int | |
1421 | remote_rdp_can_run() | |
1422 | { | |
1423 | return 1; | |
1424 | } | |
1425 | ||
1426 | /* Attach doesn't need to do anything */ | |
1427 | static void | |
1428 | remote_rdp_attach(args, from_tty) | |
1429 | char * args; | |
1430 | int from_tty; | |
1431 | { | |
1432 | return; | |
1433 | } | |
1434 | ||
1435 | /* Define the target subroutine names */ | |
1436 | ||
1437 | struct target_ops remote_rdp_ops ; | |
1438 | ||
1439 | static void | |
1440 | init_remote_rdp_ops(void) | |
1441 | { | |
1442 | remote_rdp_ops.to_shortname = "rdp"; | |
1443 | remote_rdp_ops.to_longname = "Remote Target using the RDProtocol"; | |
1444 | remote_rdp_ops.to_doc = "Use a remote ARM system which uses the ARM Remote Debugging Protocol"; | |
1445 | remote_rdp_ops.to_open = remote_rdp_open; | |
1446 | remote_rdp_ops.to_close = remote_rdp_close; | |
1447 | remote_rdp_ops.to_attach = remote_rdp_attach; | |
1448 | remote_rdp_ops.to_post_attach = NULL; | |
1449 | remote_rdp_ops.to_require_attach = NULL; | |
1450 | remote_rdp_ops.to_detach = NULL; | |
1451 | remote_rdp_ops.to_require_detach = NULL; | |
1452 | remote_rdp_ops.to_resume = remote_rdp_resume; | |
1453 | remote_rdp_ops.to_wait = remote_rdp_wait; | |
1454 | remote_rdp_ops.to_post_wait = NULL; | |
1455 | remote_rdp_ops.to_fetch_registers = remote_rdp_fetch_register; | |
1456 | remote_rdp_ops.to_store_registers = remote_rdp_store_register; | |
1457 | remote_rdp_ops.to_prepare_to_store = remote_rdp_prepare_to_store; | |
1458 | remote_rdp_ops.to_xfer_memory = remote_rdp_xfer_inferior_memory; | |
1459 | remote_rdp_ops.to_files_info = remote_rdp_files_info; | |
1460 | remote_rdp_ops.to_insert_breakpoint = remote_rdp_insert_breakpoint; | |
1461 | remote_rdp_ops.to_remove_breakpoint = remote_rdp_remove_breakpoint; | |
1462 | remote_rdp_ops.to_terminal_init = NULL; | |
1463 | remote_rdp_ops.to_terminal_inferior = NULL; | |
1464 | remote_rdp_ops.to_terminal_ours_for_output = NULL; | |
1465 | remote_rdp_ops.to_terminal_ours = NULL; | |
1466 | remote_rdp_ops.to_terminal_info = NULL; | |
1467 | remote_rdp_ops.to_kill = remote_rdp_kill; | |
1468 | remote_rdp_ops.to_load = generic_load; | |
1469 | remote_rdp_ops.to_lookup_symbol = NULL; | |
1470 | remote_rdp_ops.to_create_inferior = remote_rdp_create_inferior; | |
1471 | remote_rdp_ops.to_post_startup_inferior = NULL; | |
1472 | remote_rdp_ops.to_acknowledge_created_inferior = NULL; | |
1473 | remote_rdp_ops.to_clone_and_follow_inferior = NULL; | |
1474 | remote_rdp_ops.to_post_follow_inferior_by_clone = NULL; | |
1475 | remote_rdp_ops.to_insert_fork_catchpoint = NULL; | |
1476 | remote_rdp_ops.to_remove_fork_catchpoint = NULL; | |
1477 | remote_rdp_ops.to_insert_vfork_catchpoint = NULL; | |
1478 | remote_rdp_ops.to_remove_vfork_catchpoint = NULL; | |
1479 | remote_rdp_ops.to_has_forked = NULL; | |
1480 | remote_rdp_ops.to_has_vforked = NULL; | |
1481 | remote_rdp_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
1482 | remote_rdp_ops.to_post_follow_vfork = NULL; | |
1483 | remote_rdp_ops.to_insert_exec_catchpoint = NULL; | |
1484 | remote_rdp_ops.to_remove_exec_catchpoint = NULL; | |
1485 | remote_rdp_ops.to_has_execd = NULL; | |
1486 | remote_rdp_ops.to_reported_exec_events_per_exec_call = NULL; | |
1487 | remote_rdp_ops.to_has_exited = NULL; | |
1488 | remote_rdp_ops.to_mourn_inferior = generic_mourn_inferior; | |
1489 | remote_rdp_ops.to_can_run = remote_rdp_can_run; | |
1490 | remote_rdp_ops.to_notice_signals = 0; | |
1491 | remote_rdp_ops.to_thread_alive = 0; | |
1492 | remote_rdp_ops.to_stop = 0; | |
1493 | remote_rdp_ops.to_pid_to_exec_file = NULL; | |
1494 | remote_rdp_ops.to_core_file_to_sym_file = NULL; | |
1495 | remote_rdp_ops.to_stratum = process_stratum; | |
1496 | remote_rdp_ops.DONT_USE = NULL; | |
1497 | remote_rdp_ops.to_has_all_memory = 1; | |
1498 | remote_rdp_ops.to_has_memory = 1; | |
1499 | remote_rdp_ops.to_has_stack = 1; | |
1500 | remote_rdp_ops.to_has_registers = 1; | |
1501 | remote_rdp_ops.to_has_execution = 1; | |
1502 | remote_rdp_ops.to_sections = NULL; | |
1503 | remote_rdp_ops.to_sections_end = NULL; | |
1504 | remote_rdp_ops.to_magic = OPS_MAGIC; | |
1505 | } | |
1506 | ||
1507 | void | |
1508 | _initialize_remote_rdp () | |
1509 | { | |
1510 | init_remote_rdp_ops() ; | |
1511 | add_target (&remote_rdp_ops); | |
1512 | } |