Commit | Line | Data |
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dedcc91d SC |
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 | |
b890317e | 49 | #include <ctype.h> |
dedcc91d SC |
50 | #include <fcntl.h> |
51 | #include "symfile.h" | |
52 | #include "remote-utils.h" | |
b890317e SC |
53 | #include "gdb_string.h" |
54 | #ifdef HAVE_UNISTD_H | |
55 | #include <unistd.h> | |
56 | #endif | |
3a9c3d12 | 57 | #include "gdbcore.h" |
b890317e | 58 | |
dedcc91d SC |
59 | |
60 | extern struct target_ops remote_rdp_ops; | |
61 | static serial_t io; | |
62 | static host_callback *callback = &default_callback; | |
63 | ||
64 | struct | |
b890317e SC |
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; | |
dedcc91d SC |
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 | |
d950d986 SC |
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 | ||
dedcc91d SC |
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 | |
b890317e SC |
113 | #define RDP_SET_BREAK_TYPE_PC_EQUAL 0 |
114 | #define RDP_SET_BREAK_TYPE_GET_HANDLE (0x10) | |
dedcc91d SC |
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) | |
3a9c3d12 NC |
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 | |
dedcc91d SC |
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 | |
d950d986 | 164 | #define RDP_RES_IDUNNO 0xe6 |
dedcc91d SC |
165 | #define RDP_OSOpReply 0x13 |
166 | #define RDP_OSOpWord 2 | |
167 | #define RDP_OSOpNothing 0 | |
168 | ||
169 | static int timeout = 2; | |
170 | ||
3a9c3d12 NC |
171 | static char * commandline = NULL; |
172 | ||
dedcc91d SC |
173 | static int |
174 | remote_rdp_xfer_inferior_memory PARAMS ((CORE_ADDR memaddr, | |
b890317e SC |
175 | char *myaddr, |
176 | int len, | |
177 | int write, | |
178 | struct target_ops * target)); | |
dedcc91d SC |
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 | ||
d950d986 | 188 | if (remote_debug) |
b890317e | 189 | printf ("[%02x]\n", c); |
d950d986 | 190 | |
dedcc91d SC |
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 | ||
dedcc91d SC |
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 | { | |
d950d986 | 222 | if (remote_debug) |
b890317e | 223 | printf ("(%02x)\n", val); |
dedcc91d SC |
224 | SERIAL_WRITE (io, &val, 1); |
225 | } | |
226 | ||
227 | static void | |
228 | put_word (val) | |
b890317e | 229 | int val; |
dedcc91d SC |
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 | ||
d950d986 | 238 | if (remote_debug) |
b890317e | 239 | printf ("(%04x)", val); |
d950d986 | 240 | |
dedcc91d SC |
241 | SERIAL_WRITE (io, b, 4); |
242 | } | |
243 | ||
244 | ||
245 | ||
246 | /* Stuff for talking to the RDP layer. */ | |
247 | ||
b890317e SC |
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. | |
dedcc91d | 254 | |
b890317e | 255 | */ |
dedcc91d | 256 | static void |
b890317e SC |
257 | rdp_init (cold, tty) |
258 | int cold; | |
259 | int tty; | |
dedcc91d | 260 | { |
d950d986 SC |
261 | int sync = 0; |
262 | int type = cold ? RDP_OPEN_TYPE_COLD : RDP_OPEN_TYPE_WARM; | |
b890317e | 263 | int baudtry = 9600; |
dedcc91d | 264 | |
b890317e SC |
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) | |
dedcc91d | 270 | { |
d950d986 SC |
271 | int restype; |
272 | QUIT; | |
dedcc91d | 273 | |
b890317e SC |
274 | SERIAL_FLUSH_INPUT (io); |
275 | SERIAL_FLUSH_OUTPUT (io); | |
dedcc91d | 276 | |
b890317e SC |
277 | if (tty) |
278 | printf_unfiltered ("Trying to connect at %d baud.\n", baudtry); | |
3a9c3d12 NC |
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 | ||
b890317e | 309 | put_byte (RDP_OPEN); |
dedcc91d | 310 | |
3a9c3d12 | 311 | put_byte (type | RDP_OPEN_TYPE_RETURN_SEX ); |
b890317e | 312 | put_word (0); |
dedcc91d | 313 | |
b890317e | 314 | while (!sync && (restype = SERIAL_READCHAR (io, 1)) > 0) |
d950d986 | 315 | { |
b890317e SC |
316 | if (remote_debug) |
317 | printf_unfiltered ("[%02x]\n", restype); | |
318 | ||
319 | switch (restype) | |
d950d986 | 320 | { |
b890317e SC |
321 | case SERIAL_TIMEOUT: |
322 | break; | |
323 | case RDP_RESET: | |
324 | while ((restype = SERIAL_READCHAR (io, 1)) == RDP_RESET) | |
325 | ; | |
326 | while ((restype = SERIAL_READCHAR (io, 1)) > 0) | |
327 | { | |
328 | printf_unfiltered ("%c", isgraph (restype) ? restype : ' '); | |
329 | } | |
330 | while ((restype = SERIAL_READCHAR (io, 1)) > 0) | |
331 | ; | |
332 | if (tty) | |
333 | { | |
334 | printf_unfiltered ("\nThe board has sent notification that it was reset.\n"); | |
335 | printf_unfiltered ("Waiting for it to settle down...\n"); | |
336 | } | |
337 | sleep (3); | |
338 | if (tty) | |
339 | printf_unfiltered ("\nTrying again.\n"); | |
340 | break; | |
341 | default: | |
342 | break; | |
343 | case RDP_RES_VALUE: | |
d950d986 | 344 | { |
b890317e | 345 | int resval = SERIAL_READCHAR (io, 1); |
3a9c3d12 NC |
346 | |
347 | if (remote_debug) | |
348 | printf_unfiltered ("[%02x]\n", resval); | |
349 | ||
b890317e SC |
350 | switch (resval) |
351 | { | |
352 | case SERIAL_TIMEOUT: | |
353 | break; | |
354 | case RDP_RES_VALUE_LITTLE_ENDIAN: | |
355 | target_byte_order = LITTLE_ENDIAN; | |
356 | sync = 1; | |
357 | break; | |
358 | case RDP_RES_VALUE_BIG_ENDIAN: | |
359 | target_byte_order = BIG_ENDIAN; | |
360 | sync = 1; | |
361 | break; | |
362 | default: | |
363 | break; | |
364 | } | |
d950d986 | 365 | } |
b890317e | 366 | } |
dedcc91d SC |
367 | } |
368 | } | |
d950d986 | 369 | |
b890317e | 370 | if (!sync) |
d950d986 SC |
371 | { |
372 | error ("Couldn't reset the board, try pressing the reset button"); | |
373 | } | |
dedcc91d SC |
374 | } |
375 | ||
376 | ||
377 | #ifdef ANSI_PROTOTYPES | |
378 | void | |
379 | send_rdp (char *template,...) | |
380 | #else | |
381 | void | |
382 | send_rdp (char *template, va_alist) | |
383 | va_dcl | |
384 | #endif | |
385 | { | |
386 | char buf[200]; | |
387 | char *dst = buf; | |
388 | va_list alist; | |
389 | #ifdef ANSI_PROTOTYPES | |
390 | va_start (alist, template); | |
391 | #else | |
392 | va_start (alist); | |
393 | #endif | |
394 | ||
395 | while (*template) | |
396 | { | |
397 | unsigned int val; | |
398 | int *pi; | |
399 | int *pstat; | |
400 | char *pc; | |
401 | int i; | |
402 | switch (*template++) | |
403 | { | |
404 | case 'b': | |
405 | val = va_arg (alist, int); | |
406 | *dst++ = val; | |
407 | break; | |
408 | case 'w': | |
409 | val = va_arg (alist, int); | |
410 | *dst++ = val; | |
411 | *dst++ = val >> 8; | |
412 | *dst++ = val >> 16; | |
413 | *dst++ = val >> 24; | |
414 | break; | |
415 | case 'S': | |
416 | val = get_byte (); | |
417 | if (val != RDP_RES_VALUE) | |
418 | { | |
419 | printf_unfiltered ("got bad res value of %d, %x\n", val, val); | |
420 | } | |
421 | break; | |
422 | case 'V': | |
423 | pstat = va_arg (alist, int *); | |
424 | pi = va_arg (alist, int *); | |
425 | ||
426 | *pstat = get_byte (); | |
427 | /* Check the result was zero, if not read the syndrome */ | |
428 | if (*pstat) | |
429 | { | |
430 | *pi = get_word (); | |
431 | } | |
432 | break; | |
433 | case 'Z': | |
3a9c3d12 NC |
434 | /* Check the result code */ |
435 | switch (get_byte ()) | |
436 | { | |
437 | case 0: | |
438 | /* Success */ | |
439 | break; | |
440 | case 253: | |
441 | /* Target can't do it; never mind */ | |
442 | printf_unfiltered ("RDP: Insufficient privilege\n"); | |
443 | return; | |
444 | case 254: | |
445 | /* Target can't do it; never mind */ | |
446 | printf_unfiltered ("RDP: Unimplemented message\n"); | |
447 | return; | |
448 | case 255: | |
449 | error ("Command garbled"); | |
450 | break; | |
451 | default: | |
452 | error ("Corrupt reply from target"); | |
453 | break; | |
454 | } | |
dedcc91d SC |
455 | break; |
456 | case 'W': | |
457 | /* Read a word from the target */ | |
458 | pi = va_arg (alist, int *); | |
459 | *pi = get_word (); | |
460 | break; | |
461 | case 'P': | |
462 | /* Read in some bytes from the target. */ | |
463 | pc = va_arg (alist, char *); | |
464 | val = va_arg (alist, int); | |
465 | for (i = 0; i < val; i++) | |
466 | { | |
467 | pc[i] = get_byte (); | |
468 | } | |
469 | break; | |
470 | case 'p': | |
471 | /* send what's being pointed at */ | |
472 | pc = va_arg (alist, char *); | |
473 | val = va_arg (alist, int); | |
474 | dst = buf; | |
475 | SERIAL_WRITE (io, pc, val); | |
476 | break; | |
477 | case '-': | |
478 | /* Send whats in the queue */ | |
479 | if (dst != buf) | |
480 | { | |
481 | SERIAL_WRITE (io, buf, dst - buf); | |
482 | dst = buf; | |
483 | } | |
484 | break; | |
485 | case 'B': | |
486 | pi = va_arg (alist, int *); | |
487 | *pi = get_byte (); | |
488 | break; | |
489 | default: | |
490 | abort (); | |
491 | } | |
492 | } | |
493 | va_end (args); | |
494 | ||
495 | if (dst != buf) | |
496 | abort (); | |
497 | } | |
498 | ||
499 | ||
500 | static int | |
501 | rdp_write (memaddr, buf, len) | |
502 | CORE_ADDR memaddr; | |
503 | char *buf; | |
504 | int len; | |
505 | { | |
506 | int res; | |
507 | int val; | |
508 | ||
509 | send_rdp ("bww-p-SV", RDP_MEM_WRITE, memaddr, len, buf, len, &res, &val); | |
510 | ||
511 | if (res) | |
512 | { | |
513 | return val; | |
514 | } | |
515 | return len; | |
516 | } | |
517 | ||
518 | ||
519 | static int | |
520 | rdp_read (memaddr, buf, len) | |
521 | CORE_ADDR memaddr; | |
522 | char *buf; | |
523 | int len; | |
524 | { | |
525 | int res; | |
526 | int val; | |
527 | send_rdp ("bww-S-P-V", | |
528 | RDP_MEM_READ, memaddr, len, | |
529 | buf, len, | |
530 | &res, &val); | |
531 | if (res) | |
532 | { | |
533 | return val; | |
534 | } | |
535 | return len; | |
536 | } | |
537 | ||
538 | static void | |
539 | rdp_fetch_one_register (mask, buf) | |
540 | int mask; | |
541 | char *buf; | |
542 | { | |
543 | int val; | |
544 | send_rdp ("bbw-SWZ", RDP_CPU_READ, RDP_CPU_READWRITE_MODE_CURRENT, mask, &val); | |
545 | store_signed_integer (buf, 4, val); | |
546 | } | |
547 | ||
548 | static void | |
549 | rdp_fetch_one_fpu_register (mask, buf) | |
550 | int mask; | |
551 | char *buf; | |
552 | { | |
553 | #if 0 | |
554 | /* !!! Since the PIE board doesn't work as documented, | |
555 | and it doesn't have FPU hardware anyway and since it | |
556 | slows everything down, I've disabled this. */ | |
557 | int val; | |
558 | if (mask == RDP_FPU_READWRITE_MASK_FPS) | |
559 | { | |
560 | /* this guy is only a word */ | |
561 | send_rdp ("bbw-SWZ", RDP_COPRO_READ, FPU_COPRO_NUMBER, mask, &val); | |
562 | store_signed_integer (buf, 4, val); | |
563 | } | |
564 | else | |
565 | { | |
566 | /* There are 12 bytes long | |
567 | !! fixme about endianness | |
b890317e | 568 | */ |
dedcc91d SC |
569 | int dummy; /* I've seen these come back as four words !! */ |
570 | send_rdp ("bbw-SWWWWZ", RDP_COPRO_READ, FPU_COPRO_NUMBER, mask, buf + 0, buf + 4, buf + 8, &dummy); | |
571 | } | |
572 | #endif | |
573 | memset (buf, 0, MAX_REGISTER_RAW_SIZE); | |
574 | } | |
575 | ||
576 | ||
577 | static void | |
578 | rdp_store_one_register (mask, buf) | |
579 | int mask; | |
580 | char *buf; | |
581 | { | |
582 | int val = extract_unsigned_integer (buf, 4); | |
583 | ||
584 | send_rdp ("bbww-SZ", | |
585 | RDP_CPU_WRITE, RDP_CPU_READWRITE_MODE_CURRENT, mask, val); | |
586 | } | |
587 | ||
588 | ||
589 | static void | |
590 | rdp_store_one_fpu_register (mask, buf) | |
591 | int mask; | |
592 | char *buf; | |
593 | { | |
594 | #if 0 | |
595 | /* See comment in fetch_one_fpu_register */ | |
596 | if (mask == RDP_FPU_READWRITE_MASK_FPS) | |
597 | { | |
598 | int val = extract_unsigned_integer (buf, 4); | |
599 | /* this guy is only a word */ | |
600 | send_rdp ("bbww-SZ", RDP_COPRO_WRITE, | |
601 | FPU_COPRO_NUMBER, | |
602 | mask, val); | |
603 | } | |
604 | else | |
605 | { | |
606 | /* There are 12 bytes long | |
607 | !! fixme about endianness | |
608 | */ | |
609 | int dummy = 0; | |
610 | /* I've seen these come as four words, not the three advertized !! */ | |
611 | printf ("Sending mask %x\n", mask); | |
612 | send_rdp ("bbwwwww-SZ", | |
613 | RDP_COPRO_WRITE, | |
614 | FPU_COPRO_NUMBER, | |
615 | mask, | |
616 | *(int *) (buf + 0), | |
617 | *(int *) (buf + 4), | |
618 | *(int *) (buf + 8), | |
619 | 0); | |
620 | ||
621 | printf ("done mask %x\n", mask); | |
622 | } | |
623 | #endif | |
624 | } | |
dedcc91d | 625 | \f |
b890317e | 626 | |
dedcc91d SC |
627 | /* Convert between GDB requests and the RDP layer. */ |
628 | ||
629 | static void | |
630 | remote_rdp_fetch_register (regno) | |
631 | int regno; | |
632 | { | |
633 | if (regno == -1) | |
634 | { | |
635 | for (regno = 0; regno < NUM_REGS; regno++) | |
636 | remote_rdp_fetch_register (regno); | |
637 | } | |
638 | else | |
639 | { | |
640 | char buf[MAX_REGISTER_RAW_SIZE]; | |
641 | if (regno < 15) | |
642 | rdp_fetch_one_register (1 << regno, buf); | |
643 | else if (regno == PC_REGNUM) | |
644 | rdp_fetch_one_register (RDP_CPU_READWRITE_MASK_PC, buf); | |
645 | else if (regno == PS_REGNUM) | |
646 | rdp_fetch_one_register (RDP_CPU_READWRITE_MASK_CPSR, buf); | |
647 | else if (regno == FPS_REGNUM) | |
648 | rdp_fetch_one_fpu_register (RDP_FPU_READWRITE_MASK_FPS, buf); | |
649 | else if (regno >= F0_REGNUM && regno <= F7_REGNUM) | |
650 | rdp_fetch_one_fpu_register (1 << (regno - F0_REGNUM), buf); | |
651 | else | |
652 | { | |
653 | printf ("Help me with fetch reg %d\n", regno); | |
654 | } | |
655 | supply_register (regno, buf); | |
656 | } | |
657 | } | |
658 | ||
659 | ||
660 | static void | |
661 | remote_rdp_store_register (regno) | |
662 | int regno; | |
663 | { | |
664 | if (regno == -1) | |
665 | { | |
666 | for (regno = 0; regno < NUM_REGS; regno++) | |
667 | remote_rdp_store_register (regno); | |
668 | } | |
669 | else | |
670 | { | |
671 | char tmp[MAX_REGISTER_RAW_SIZE]; | |
672 | read_register_gen (regno, tmp); | |
673 | if (regno < 15) | |
674 | rdp_store_one_register (1 << regno, tmp); | |
675 | else if (regno == PC_REGNUM) | |
676 | rdp_store_one_register (RDP_CPU_READWRITE_MASK_PC, tmp); | |
677 | else if (regno == PS_REGNUM) | |
678 | rdp_store_one_register (RDP_CPU_READWRITE_MASK_CPSR, tmp); | |
679 | else if (regno >= F0_REGNUM && regno <= F7_REGNUM) | |
680 | rdp_store_one_fpu_register (1 << (regno - F0_REGNUM), tmp); | |
681 | else | |
682 | { | |
683 | printf ("Help me with reg %d\n", regno); | |
684 | } | |
685 | } | |
686 | } | |
687 | ||
688 | static void | |
689 | remote_rdp_kill () | |
690 | { | |
691 | callback->shutdown (callback); | |
692 | } | |
693 | ||
694 | ||
695 | static void | |
696 | rdp_info () | |
697 | { | |
698 | send_rdp ("bw-S-W-Z", RDP_INFO, RDP_INFO_ABOUT_STEP, | |
699 | &ds.step_info); | |
700 | send_rdp ("bw-S-W-Z", RDP_INFO, RDP_INFO_ABOUT_BREAK, | |
701 | &ds.break_info); | |
702 | send_rdp ("bw-S-WW-Z", RDP_INFO, RDP_INFO_ABOUT_TARGET, | |
703 | &ds.target_info, | |
704 | &ds.model_info); | |
705 | ||
706 | ds.can_step = ds.step_info & RDP_INFO_ABOUT_STEP_1; | |
707 | ||
708 | ds.rdi_level = (ds.target_info >> 5) & 3; | |
709 | } | |
710 | ||
711 | ||
712 | static void | |
713 | rdp_execute_start () | |
714 | { | |
715 | /* Start it off, but don't wait for it */ | |
716 | send_rdp ("bb-", RDP_EXEC, RDP_EXEC_TYPE_SYNC); | |
717 | } | |
718 | ||
719 | ||
3a9c3d12 NC |
720 | static void |
721 | rdp_set_command_line (command, args) | |
722 | char * command; | |
723 | char * args; | |
724 | { | |
725 | /* | |
726 | ** We could use RDP_INFO_SET_CMDLINE to send this, but EmbeddedICE systems | |
727 | ** don't implement that, and get all confused at the unexpected text. | |
728 | ** Instead, just keep a copy, and send it when the target does a SWI_GetEnv | |
729 | */ | |
730 | ||
731 | if (commandline != NULL) | |
732 | free (commandline); | |
733 | ||
734 | commandline = malloc (strlen (command) + strlen (args) + 2); | |
735 | if (commandline != NULL) | |
736 | { | |
737 | strcpy (commandline, command); | |
738 | strcat (commandline, " "); | |
739 | strcat (commandline, args); | |
740 | } | |
741 | } | |
742 | ||
743 | static void | |
744 | rdp_catch_vectors () | |
745 | { | |
746 | /* | |
747 | ** We want the target monitor to intercept the abort vectors | |
748 | ** i.e. stop the program if any of these are used. | |
749 | */ | |
750 | send_rdp ("bww-SZ", RDP_INFO, RDP_INFO_VECTOR_CATCH, | |
751 | /* | |
752 | ** Specify a bitmask including | |
753 | ** the reset vector | |
754 | ** the undefined instruction vector | |
755 | ** the prefetch abort vector | |
756 | ** the data abort vector | |
757 | ** the address exception vector | |
758 | */ | |
759 | (1<<0)|(1<<1)|(1<<3)|(1<<4)|(1<<5) | |
760 | ); | |
761 | } | |
762 | ||
763 | ||
dedcc91d SC |
764 | |
765 | #define a_byte 1 | |
766 | #define a_word 2 | |
767 | #define a_string 3 | |
768 | ||
769 | ||
770 | typedef struct | |
771 | { | |
772 | CORE_ADDR n; | |
773 | const char *s; | |
774 | } | |
775 | argsin; | |
776 | ||
777 | #define ABYTE 1 | |
778 | #define AWORD 2 | |
779 | #define ASTRING 3 | |
780 | #define ADDRLEN 4 | |
781 | ||
782 | #define SWI_WriteC 0x0 | |
783 | #define SWI_Write0 0x2 | |
784 | #define SWI_ReadC 0x4 | |
785 | #define SWI_CLI 0x5 | |
786 | #define SWI_GetEnv 0x10 | |
787 | #define SWI_Exit 0x11 | |
788 | #define SWI_EnterOS 0x16 | |
789 | ||
790 | #define SWI_GetErrno 0x60 | |
791 | #define SWI_Clock 0x61 | |
792 | ||
793 | #define SWI_Time 0x63 | |
794 | #define SWI_Remove 0x64 | |
795 | #define SWI_Rename 0x65 | |
796 | #define SWI_Open 0x66 | |
797 | ||
798 | #define SWI_Close 0x68 | |
799 | #define SWI_Write 0x69 | |
800 | #define SWI_Read 0x6a | |
801 | #define SWI_Seek 0x6b | |
802 | #define SWI_Flen 0x6c | |
803 | ||
804 | #define SWI_IsTTY 0x6e | |
805 | #define SWI_TmpNam 0x6f | |
806 | #define SWI_InstallHandler 0x70 | |
807 | #define SWI_GenerateError 0x71 | |
808 | ||
809 | ||
810 | static int | |
811 | exec_swi (swi, args) | |
812 | int swi; | |
813 | argsin *args; | |
814 | { | |
815 | int i; | |
816 | char c; | |
817 | switch (swi) | |
818 | { | |
819 | case SWI_WriteC: | |
820 | callback->write_stdout (callback, &c, 1); | |
821 | return 0; | |
822 | case SWI_Write0: | |
823 | for (i = 0; i < args->n; i++) | |
824 | callback->write_stdout (callback, args->s, strlen (args->s)); | |
825 | return 0; | |
826 | case SWI_ReadC: | |
827 | callback->read_stdin (callback, &c, 1); | |
828 | args->n = c; | |
829 | return 1; | |
830 | case SWI_CLI: | |
831 | args->n = callback->system (callback, args->s); | |
832 | return 1; | |
833 | case SWI_GetErrno: | |
834 | args->n = callback->get_errno (callback); | |
835 | return 1; | |
836 | case SWI_Time: | |
837 | args->n = callback->time (callback, NULL); | |
838 | return 1; | |
839 | case SWI_Remove: | |
840 | args->n = callback->unlink (callback, args->s); | |
841 | return 1; | |
842 | case SWI_Rename: | |
843 | args->n = callback->rename (callback, args[0].s, args[1].s); | |
844 | return 1; | |
845 | case SWI_Open: | |
846 | i = 0; | |
847 | ||
848 | #ifdef O_BINARY | |
849 | if (args[1].n & 1) | |
850 | i |= O_BINARY; | |
851 | #endif | |
852 | if (args[1].n & 2) | |
853 | i |= O_RDWR; | |
854 | ||
855 | if (args[1].n & 4) | |
856 | { | |
857 | i |= O_CREAT; | |
858 | } | |
859 | ||
860 | if (args[1].n & 8) | |
861 | i |= O_APPEND; | |
862 | ||
863 | args->n = callback->open (callback, args->s, i); | |
864 | return 1; | |
865 | ||
866 | case SWI_Close: | |
867 | args->n = callback->close (callback, args->n); | |
868 | return 1; | |
869 | ||
870 | case SWI_Write: | |
871 | args->n = callback->write (callback, args[0].n, args[1].s, args[1].n); | |
872 | return 1; | |
873 | case SWI_Read: | |
874 | { | |
875 | char *copy = alloca (args[2].n); | |
876 | int done = callback->read (callback, args[0].n, copy, args[2].n); | |
877 | if (done > 0) | |
878 | remote_rdp_xfer_inferior_memory (args[0].n, copy, done, 1, 0); | |
879 | args->n -= done; | |
880 | return 1; | |
881 | } | |
882 | ||
883 | case SWI_Seek: | |
884 | args->n = callback->lseek (callback, args[0].n, args[1].n, 0) >= 0; | |
885 | return 1; | |
886 | case SWI_Flen: | |
887 | { | |
888 | long old = callback->lseek (callback, args->n, 1, 1); | |
889 | args->n = callback->lseek (callback, args->n, 2, 0); | |
890 | callback->lseek (callback, args->n, old, 0); | |
891 | return 1; | |
892 | } | |
893 | ||
894 | case SWI_IsTTY: | |
895 | args->n = callback->isatty (callback, args->n); | |
896 | return 1; | |
897 | ||
3a9c3d12 NC |
898 | case SWI_GetEnv: |
899 | if (commandline != NULL) | |
900 | { | |
901 | int len = strlen (commandline); | |
902 | if (len > 255) | |
903 | { | |
904 | len = 255; | |
905 | commandline [255]='\0'; | |
906 | } | |
907 | remote_rdp_xfer_inferior_memory (args[0].n, | |
908 | commandline, len+1, 1, 0); | |
909 | } | |
910 | else | |
911 | remote_rdp_xfer_inferior_memory (args[0].n, "", 1, 1, 0); | |
912 | return 1; | |
913 | ||
dedcc91d SC |
914 | default: |
915 | return 0; | |
916 | } | |
917 | } | |
918 | ||
919 | ||
b890317e | 920 | static void |
dedcc91d SC |
921 | handle_swi () |
922 | { | |
923 | argsin args[3]; | |
924 | char *buf; | |
925 | int len; | |
926 | int count = 0; | |
927 | ||
928 | int swino = get_word (); | |
929 | int type = get_byte (); | |
930 | while (type != 0) | |
931 | { | |
932 | switch (type & 0x3) | |
933 | { | |
934 | case ABYTE: | |
935 | args[count].n = get_byte (); | |
936 | break; | |
937 | ||
938 | case AWORD: | |
939 | args[count].n = get_word (); | |
940 | break; | |
941 | ||
942 | case ASTRING: | |
943 | /* If the word is under 32 bytes it will be sent otherwise | |
944 | an address to it is passed. Also: Special case of 255 */ | |
945 | ||
946 | len = get_byte (); | |
947 | if (len > 32) | |
948 | { | |
949 | if (len == 255) | |
950 | { | |
951 | len = get_word (); | |
952 | } | |
953 | buf = alloca (len); | |
954 | remote_rdp_xfer_inferior_memory (get_word (), | |
955 | buf, | |
956 | len, | |
957 | 0, | |
958 | 0); | |
959 | } | |
960 | else | |
961 | { | |
962 | int i; | |
963 | buf = alloca (len + 1); | |
964 | for (i = 0; i < len; i++) | |
965 | buf[i] = get_byte (); | |
966 | buf[i] = 0; | |
967 | } | |
968 | args[count].n = len; | |
969 | args[count].s = buf; | |
970 | break; | |
971 | ||
972 | default: | |
973 | error ("Unimplented SWI argument"); | |
974 | } | |
975 | ||
976 | type = type >> 2; | |
977 | count++; | |
978 | } | |
979 | ||
980 | if (exec_swi (swino, args)) | |
981 | { | |
982 | /* We have two options here reply with either a byte or a word | |
983 | which is stored in args[0].n. There is no harm in replying with | |
984 | a word all the time, so thats what I do! */ | |
985 | send_rdp ("bbw-", RDP_OSOpReply, RDP_OSOpWord, args[0].n); | |
986 | } | |
987 | else | |
988 | { | |
989 | send_rdp ("bb-", RDP_OSOpReply, RDP_OSOpNothing); | |
990 | } | |
991 | } | |
992 | ||
993 | static void | |
994 | rdp_execute_finish () | |
995 | { | |
996 | int running = 1; | |
997 | ||
998 | while (running) | |
999 | { | |
1000 | int res; | |
1001 | res = SERIAL_READCHAR (io, 1); | |
1002 | while (res == SERIAL_TIMEOUT) | |
1003 | { | |
b890317e | 1004 | QUIT; |
dedcc91d SC |
1005 | printf_filtered ("Waiting for target..\n"); |
1006 | res = SERIAL_READCHAR (io, 1); | |
1007 | } | |
1008 | ||
1009 | switch (res) | |
1010 | { | |
1011 | case RDP_RES_SWI: | |
1012 | handle_swi (); | |
1013 | break; | |
1014 | case RDP_RES_VALUE: | |
1015 | send_rdp ("B", &ds.rdi_stopped_status); | |
1016 | running = 0; | |
1017 | break; | |
1018 | case RDP_RESET: | |
1019 | printf_filtered ("Target reset\n"); | |
1020 | running = 0; | |
1021 | break; | |
1022 | default: | |
1023 | printf_filtered ("Ignoring %x\n", res); | |
1024 | break; | |
1025 | } | |
1026 | } | |
1027 | } | |
1028 | ||
1029 | ||
1030 | static void | |
1031 | rdp_execute () | |
1032 | { | |
1033 | rdp_execute_start (); | |
1034 | rdp_execute_finish (); | |
1035 | } | |
1036 | ||
1037 | static int | |
1038 | remote_rdp_insert_breakpoint (addr, save) | |
1039 | CORE_ADDR addr; | |
1040 | char *save; | |
1041 | { | |
1042 | int res; | |
1043 | if (ds.rdi_level > 0) | |
1044 | { | |
1045 | send_rdp ("bwb-SWB", | |
1046 | RDP_SET_BREAK, | |
1047 | addr, | |
1048 | RDP_SET_BREAK_TYPE_PC_EQUAL | RDP_SET_BREAK_TYPE_GET_HANDLE, | |
1049 | save, | |
1050 | &res); | |
1051 | } | |
1052 | else | |
1053 | { | |
1054 | send_rdp ("bwb-SB", | |
1055 | RDP_SET_BREAK, | |
1056 | addr, | |
1057 | RDP_SET_BREAK_TYPE_PC_EQUAL, | |
1058 | &res); | |
1059 | } | |
1060 | return res; | |
1061 | } | |
1062 | ||
1063 | static int | |
1064 | remote_rdp_remove_breakpoint (addr, save) | |
1065 | CORE_ADDR addr; | |
1066 | char *save; | |
1067 | { | |
1068 | int res; | |
1069 | if (ds.rdi_level > 0) | |
1070 | { | |
1071 | send_rdp ("b-p-S-B", | |
1072 | RDP_CLEAR_BREAK, | |
1073 | save, 4, | |
1074 | &res); | |
1075 | } | |
1076 | else | |
1077 | { | |
1078 | send_rdp ("bw-S-B", | |
1079 | RDP_CLEAR_BREAK, | |
1080 | addr, | |
1081 | &res); | |
1082 | } | |
1083 | return res; | |
1084 | } | |
1085 | ||
1086 | static void | |
1087 | rdp_step () | |
1088 | { | |
1089 | if (ds.can_step && 0) | |
1090 | { | |
1091 | /* The pie board can't do steps so I can't test this, and | |
1092 | the other code will always work. */ | |
1093 | int status; | |
1094 | send_rdp ("bbw-S-B", | |
1095 | RDP_STEP, 0, 1, | |
1096 | &status); | |
1097 | } | |
1098 | else | |
1099 | { | |
1100 | char handle[4]; | |
1101 | CORE_ADDR pc = read_register (PC_REGNUM); | |
1102 | pc = arm_get_next_pc (pc); | |
1103 | remote_rdp_insert_breakpoint (pc, &handle); | |
1104 | rdp_execute (); | |
1105 | remote_rdp_remove_breakpoint (pc, &handle); | |
1106 | } | |
1107 | } | |
1108 | ||
1109 | static void | |
1110 | remote_rdp_open (args, from_tty) | |
1111 | char *args; | |
1112 | int from_tty; | |
1113 | { | |
3a9c3d12 NC |
1114 | int not_icebreaker; |
1115 | ||
dedcc91d SC |
1116 | if (!args) |
1117 | error_no_arg ("serial port device name"); | |
1118 | ||
b890317e SC |
1119 | baud_rate = 9600; |
1120 | ||
dedcc91d SC |
1121 | target_preopen (from_tty); |
1122 | ||
1123 | io = SERIAL_OPEN (args); | |
1124 | ||
1125 | if (!io) | |
1126 | perror_with_name (args); | |
1127 | ||
1128 | SERIAL_RAW (io); | |
1129 | ||
b890317e | 1130 | rdp_init (1, from_tty); |
d950d986 | 1131 | |
dedcc91d | 1132 | |
dedcc91d SC |
1133 | if (from_tty) |
1134 | { | |
d950d986 | 1135 | printf_unfiltered ("Remote RDP debugging using %s at %d baud\n", args, baud_rate); |
dedcc91d SC |
1136 | } |
1137 | ||
d950d986 SC |
1138 | rdp_info (); |
1139 | ||
3a9c3d12 NC |
1140 | /* Need to set up the vector interception state */ |
1141 | rdp_catch_vectors(); | |
1142 | ||
1143 | /* | |
1144 | ** If it's an EmbeddedICE, we need to set the processor config. | |
1145 | ** Assume we can always have ARM7TDI... | |
1146 | */ | |
1147 | send_rdp ("bw-SB", RDP_INFO, RDP_INFO_ICEBREAKER, & not_icebreaker); | |
1148 | if (!not_icebreaker) | |
1149 | { | |
1150 | const char * CPU = "ARM7TDI"; | |
1151 | int ICEversion; | |
1152 | int len = strlen (CPU); | |
1153 | ||
1154 | send_rdp ("bbbbw-p-SWZ", | |
1155 | RDP_SELECT_CONFIG, | |
1156 | RDI_ConfigCPU, /* Aspect: set the CPU */ | |
1157 | len, /* The number of bytes in the name */ | |
1158 | RDI_MatchAny, /* We'll take whatever we get */ | |
1159 | 0, /* We'll take whatever version's there */ | |
1160 | CPU,len, | |
1161 | & ICEversion); | |
1162 | } | |
1163 | ||
1164 | /* command line initialised on 'run'*/ | |
1165 | ||
1166 | push_target (& remote_rdp_ops); | |
dedcc91d SC |
1167 | |
1168 | callback->init (callback); | |
1169 | flush_cached_frames (); | |
1170 | registers_changed (); | |
1171 | stop_pc = read_pc (); | |
1172 | set_current_frame (create_new_frame (read_fp (), stop_pc)); | |
1173 | select_frame (get_current_frame (), 0); | |
1174 | print_stack_frame (selected_frame, -1, 1); | |
1175 | } | |
1176 | ||
1177 | ||
1178 | ||
1179 | /* Close out all files and local state before this target loses control. */ | |
1180 | ||
1181 | static void | |
1182 | remote_rdp_close (quitting) | |
1183 | int quitting; | |
1184 | { | |
1185 | callback->shutdown (callback); | |
d950d986 SC |
1186 | if (io) |
1187 | SERIAL_CLOSE (io); | |
1188 | io = 0; | |
dedcc91d SC |
1189 | } |
1190 | ||
dedcc91d SC |
1191 | |
1192 | /* Resume execution of the target process. STEP says whether to single-step | |
1193 | or to run free; SIGGNAL is the signal value (e.g. SIGINT) to be given | |
1194 | to the target, or zero for no signal. */ | |
1195 | ||
1196 | static void | |
1197 | remote_rdp_resume (pid, step, siggnal) | |
1198 | int pid, step; | |
1199 | enum target_signal siggnal; | |
1200 | { | |
1201 | if (step) | |
1202 | rdp_step (); | |
1203 | else | |
1204 | rdp_execute (); | |
1205 | } | |
1206 | ||
1207 | /* Wait for inferior process to do something. Return pid of child, | |
1208 | or -1 in case of error; store status through argument pointer STATUS, | |
1209 | just as `wait' would. */ | |
1210 | ||
1211 | static int | |
1212 | remote_rdp_wait (pid, status) | |
1213 | int pid; | |
1214 | struct target_waitstatus *status; | |
1215 | { | |
1216 | switch (ds.rdi_stopped_status) | |
1217 | { | |
1218 | default: | |
1219 | case RDP_RES_RESET: | |
1220 | case RDP_RES_SWI: | |
1221 | status->kind = TARGET_WAITKIND_EXITED; | |
1222 | status->value.integer = read_register (0); | |
1223 | break; | |
1224 | case RDP_RES_AT_BREAKPOINT: | |
1225 | status->kind = TARGET_WAITKIND_STOPPED; | |
1226 | /* The signal in sigrc is a host signal. That probably | |
1227 | should be fixed. */ | |
1228 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1229 | break; | |
1230 | #if 0 | |
1231 | case rdp_signalled: | |
1232 | status->kind = TARGET_WAITKIND_SIGNALLED; | |
1233 | /* The signal in sigrc is a host signal. That probably | |
1234 | should be fixed. */ | |
1235 | status->value.sig = target_signal_from_host (sigrc); | |
1236 | break; | |
1237 | #endif | |
1238 | } | |
1239 | ||
1240 | return inferior_pid; | |
1241 | } | |
1242 | ||
1243 | /* Get ready to modify the registers array. On machines which store | |
1244 | individual registers, this doesn't need to do anything. On machines | |
1245 | which store all the registers in one fell swoop, this makes sure | |
1246 | that registers contains all the registers from the program being | |
1247 | debugged. */ | |
1248 | ||
1249 | static void | |
1250 | remote_rdp_prepare_to_store () | |
1251 | { | |
1252 | /* Do nothing, since we can store individual regs */ | |
1253 | } | |
1254 | ||
1255 | static int | |
1256 | remote_rdp_xfer_inferior_memory (memaddr, myaddr, len, write, target) | |
1257 | CORE_ADDR memaddr; | |
1258 | char *myaddr; | |
1259 | int len; | |
1260 | int write; | |
1261 | struct target_ops *target; /* ignored */ | |
1262 | { | |
1263 | /* I infer from D Taylor's code that there's a limit on the amount | |
1264 | we can transfer in one chunk.. */ | |
1265 | int done = 0; | |
1266 | while (done < len) | |
1267 | { | |
1268 | int justdone; | |
1269 | int thisbite = len - done; | |
1270 | if (thisbite > RDP_MOUTHFULL) | |
1271 | thisbite = RDP_MOUTHFULL; | |
1272 | ||
1273 | QUIT; | |
1274 | ||
1275 | if (write) | |
1276 | { | |
1277 | justdone = rdp_write (memaddr + done, myaddr + done, thisbite); | |
1278 | } | |
1279 | else | |
1280 | { | |
1281 | justdone = rdp_read (memaddr + done, myaddr + done, thisbite); | |
1282 | } | |
1283 | ||
1284 | done += justdone; | |
1285 | ||
1286 | if (justdone != thisbite) | |
1287 | break; | |
1288 | } | |
1289 | return done; | |
1290 | } | |
1291 | ||
1292 | ||
1293 | ||
1294 | struct yn | |
1295 | { | |
1296 | const char *name; | |
1297 | int bit; | |
1298 | }; | |
1299 | static struct yn stepinfo[] = | |
1300 | { | |
1301 | {"Step more than one instruction", RDP_INFO_ABOUT_STEP_GT_1}, | |
1302 | {"Step to jump", RDP_INFO_ABOUT_STEP_TO_JMP}, | |
1303 | {"Step one instruction", RDP_INFO_ABOUT_STEP_1}, | |
1304 | {0} | |
1305 | }; | |
1306 | ||
1307 | static struct yn breakinfo[] = | |
1308 | { | |
1309 | {"comparison breakpoints supported", RDP_INFO_ABOUT_BREAK_COMP}, | |
1310 | {"range breakpoints supported", RDP_INFO_ABOUT_BREAK_RANGE}, | |
1311 | {"watchpoints for byte reads supported", RDP_INFO_ABOUT_BREAK_BYTE_READ}, | |
1312 | {"watchpoints for half-word reads supported", RDP_INFO_ABOUT_BREAK_HALFWORD_READ}, | |
1313 | {"watchpoints for word reads supported", RDP_INFO_ABOUT_BREAK_WORD_READ}, | |
1314 | {"watchpoints for byte writes supported", RDP_INFO_ABOUT_BREAK_BYTE_WRITE}, | |
1315 | {"watchpoints for half-word writes supported", RDP_INFO_ABOUT_BREAK_HALFWORD_WRITE}, | |
1316 | {"watchpoints for word writes supported", RDP_INFO_ABOUT_BREAK_WORD_WRITE}, | |
1317 | {"mask break/watch-points supported", RDP_INFO_ABOUT_BREAK_MASK}, | |
b890317e SC |
1318 | {"thread-specific breakpoints supported", RDP_INFO_ABOUT_BREAK_THREAD_BREAK}, |
1319 | {"thread-specific watchpoints supported", RDP_INFO_ABOUT_BREAK_THREAD_WATCH}, | |
dedcc91d SC |
1320 | {"conditional breakpoints supported", RDP_INFO_ABOUT_BREAK_COND}, |
1321 | {0} | |
1322 | }; | |
1323 | ||
1324 | ||
1325 | static void | |
1326 | dump_bits (t, info) | |
1327 | struct yn *t; | |
1328 | int info; | |
1329 | { | |
1330 | while (t->name) | |
1331 | { | |
1332 | printf_unfiltered (" %-45s : %s\n", t->name, (info & t->bit) ? "Yes" : "No"); | |
1333 | t++; | |
1334 | } | |
1335 | } | |
1336 | ||
1337 | static void | |
1338 | remote_rdp_files_info (target) | |
1339 | struct target_ops *target; | |
1340 | { | |
1341 | printf_filtered ("Target capabilities:\n"); | |
1342 | dump_bits (stepinfo, ds.step_info); | |
1343 | dump_bits (breakinfo, ds.break_info); | |
1344 | printf_unfiltered ("target level RDI %x\n", (ds.target_info >> 5) & 3); | |
1345 | } | |
1346 | ||
1347 | ||
3a9c3d12 NC |
1348 | static void |
1349 | remote_rdp_create_inferior (exec_file, allargs, env) | |
1350 | char * exec_file; | |
1351 | char * allargs; | |
1352 | char ** env; | |
1353 | { | |
1354 | CORE_ADDR entry_point; | |
1355 | ||
1356 | if (exec_file == 0 || exec_bfd == 0) | |
1357 | error ("No exec file specified."); | |
1358 | ||
1359 | entry_point = (CORE_ADDR) bfd_get_start_address (exec_bfd); | |
1360 | ||
1361 | remote_rdp_kill (); | |
1362 | remove_breakpoints (); | |
1363 | init_wait_for_inferior (); | |
1364 | ||
1365 | /* This gives us a chance to set up the command line */ | |
1366 | rdp_set_command_line (exec_file, allargs); | |
1367 | ||
1368 | inferior_pid = 42; | |
1369 | insert_breakpoints (); /* Needed to get correct instruction in cache */ | |
1370 | ||
1371 | /* | |
1372 | ** RDP targets don't provide any facility to set the top of memory, | |
1373 | ** so we don't bother to look for MEMSIZE in the environment. | |
1374 | */ | |
1375 | ||
1376 | /* Let's go! */ | |
1377 | proceed (entry_point, TARGET_SIGNAL_DEFAULT, 0); | |
1378 | } | |
1379 | ||
1380 | /* Accept any stray run/attach commands */ | |
1381 | static int | |
1382 | remote_rdp_can_run() | |
1383 | { | |
1384 | return 1; | |
1385 | } | |
1386 | ||
1387 | /* Attach doesn't need to do anything */ | |
1388 | static void | |
1389 | remote_rdp_attach(args, from_tty) | |
1390 | char * args; | |
1391 | int from_tty; | |
1392 | { | |
1393 | return; | |
1394 | } | |
1395 | ||
dedcc91d SC |
1396 | /* Define the target subroutine names */ |
1397 | ||
c719b714 JM |
1398 | struct target_ops remote_rdp_ops ; |
1399 | ||
1400 | static void init_remote_rdp_ops(void) | |
dedcc91d | 1401 | { |
c719b714 JM |
1402 | remote_rdp_ops.to_shortname = "rdp"; |
1403 | remote_rdp_ops.to_longname = "Remote Target using the RDProtocol"; | |
1404 | remote_rdp_ops.to_doc = "Use a remote ARM system which uses the ARM Remote Debugging Protocol"; | |
1405 | remote_rdp_ops.to_open = remote_rdp_open; | |
1406 | remote_rdp_ops.to_close = remote_rdp_close; | |
1407 | remote_rdp_ops.to_attach = remote_rdp_attach; | |
1408 | remote_rdp_ops.to_detach = NULL; | |
1409 | remote_rdp_ops.to_resume = remote_rdp_resume; | |
1410 | remote_rdp_ops.to_wait = remote_rdp_wait; | |
1411 | remote_rdp_ops.to_fetch_registers = remote_rdp_fetch_register; | |
1412 | remote_rdp_ops.to_store_registers = remote_rdp_store_register; | |
1413 | remote_rdp_ops.to_prepare_to_store = remote_rdp_prepare_to_store; | |
1414 | remote_rdp_ops.to_xfer_memory = remote_rdp_xfer_inferior_memory; | |
1415 | remote_rdp_ops.to_files_info = remote_rdp_files_info; | |
1416 | remote_rdp_ops.to_insert_breakpoint = remote_rdp_insert_breakpoint; | |
1417 | remote_rdp_ops.to_remove_breakpoint = remote_rdp_remove_breakpoint; | |
1418 | remote_rdp_ops.to_terminal_init = NULL; | |
1419 | remote_rdp_ops.to_terminal_inferior = NULL; | |
1420 | remote_rdp_ops.to_terminal_ours_for_output = NULL; | |
1421 | remote_rdp_ops.to_terminal_ours = NULL; | |
1422 | remote_rdp_ops.to_terminal_info = NULL; | |
1423 | remote_rdp_ops.to_kill = remote_rdp_kill; | |
1424 | remote_rdp_ops.to_load = generic_load; | |
1425 | remote_rdp_ops.to_lookup_symbol = NULL; | |
1426 | remote_rdp_ops.to_create_inferior = remote_rdp_create_inferior; | |
1427 | remote_rdp_ops.to_mourn_inferior = generic_mourn_inferior; | |
1428 | remote_rdp_ops.to_can_run = remote_rdp_can_run; | |
1429 | remote_rdp_ops.to_notice_signals = 0; | |
1430 | remote_rdp_ops.to_thread_alive = 0; | |
1431 | remote_rdp_ops.to_stop = 0; | |
1432 | remote_rdp_ops.to_stratum = process_stratum; | |
1433 | remote_rdp_ops.DONT_USE = NULL; | |
1434 | remote_rdp_ops.to_has_all_memory = 1; | |
1435 | remote_rdp_ops.to_has_memory = 1; | |
1436 | remote_rdp_ops.to_has_stack = 1; | |
1437 | remote_rdp_ops.to_has_registers = 1; | |
1438 | remote_rdp_ops.to_has_execution = 1; | |
1439 | remote_rdp_ops.to_sections = NULL; | |
1440 | remote_rdp_ops.to_sections_end = NULL; | |
1441 | remote_rdp_ops.to_magic = OPS_MAGIC; | |
1442 | } | |
dedcc91d SC |
1443 | |
1444 | void | |
1445 | _initialize_remote_rdp () | |
1446 | { | |
c719b714 | 1447 | init_remote_rdp_ops() ; |
dedcc91d SC |
1448 | add_target (&remote_rdp_ops); |
1449 | } |