Commit | Line | Data |
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c906108c SS |
1 | /* Remote debugging interface for Am290*0 running MiniMON monitor, for GDB. |
2 | Copyright 1990, 1991, 1992 Free Software Foundation, Inc. | |
3 | Originally written by Daniel Mann at AMD. | |
4 | ||
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | /* This is like remote.c but ecpects MiniMON to be running on the Am29000 | |
23 | target hardware. | |
c5aa993b JM |
24 | - David Wood (wood@lab.ultra.nyu.edu) at New York University adapted this |
25 | file to gdb 3.95. I was unable to get this working on sun3os4 | |
26 | with termio, only with sgtty. Because we are only attempting to | |
27 | use this module to debug our kernel, which is already loaded when | |
28 | gdb is started up, I did not code up the file downloading facilities. | |
29 | As a result this module has only the stubs to download files. | |
30 | You should get tagged at compile time if you need to make any | |
31 | changes/additions. */ | |
32 | ||
c906108c SS |
33 | #include "defs.h" |
34 | #include "inferior.h" | |
03f2053f | 35 | #include "gdb_wait.h" |
c906108c SS |
36 | #include "value.h" |
37 | #include <ctype.h> | |
38 | #include <fcntl.h> | |
39 | #include <signal.h> | |
40 | #include <errno.h> | |
41 | #include "gdb_string.h" | |
42 | #include "terminal.h" | |
43 | #include "minimon.h" | |
44 | #include "target.h" | |
45 | ||
46 | /* Offset of member MEMBER in a struct of type TYPE. */ | |
47 | #define offsetof(TYPE, MEMBER) ((int) &((TYPE *)0)->MEMBER) | |
48 | ||
49 | #define DRAIN_INPUT() (msg_recv_serial((union msg_t*)0)) | |
50 | ||
c5aa993b | 51 | extern int stop_soon_quietly; /* for wait_for_inferior */ |
c906108c | 52 | |
c5aa993b | 53 | static void mm_resume (); |
c906108c SS |
54 | static void mm_fetch_registers (); |
55 | static int fetch_register (); | |
56 | static void mm_store_registers (); | |
57 | static int store_register (); | |
c5aa993b JM |
58 | static int regnum_to_srnum (); |
59 | static void mm_close (); | |
60 | static char *msg_str (); | |
61 | static char *error_msg_str (); | |
62 | static int expect_msg (); | |
63 | static void init_target_mm (); | |
64 | static int mm_memory_space (); | |
c906108c SS |
65 | |
66 | #define FREEZE_MODE (read_register(CPS_REGNUM) && 0x400) | |
67 | #define USE_SHADOW_PC ((processor_type == a29k_freeze_mode) && FREEZE_MODE) | |
68 | ||
69 | /* FIXME: Replace with `set remotedebug'. */ | |
70 | #define LLOG_FILE "minimon.log" | |
71 | #if defined (LOG_FILE) | |
72 | FILE *log_file; | |
73 | #endif | |
74 | ||
75 | /* | |
76 | * Size of message buffers. I couldn't get memory reads to work when | |
77 | * the byte_count was larger than 512 (it may be a baud rate problem). | |
78 | */ | |
c5aa993b | 79 | #define BUFER_SIZE 512 |
c906108c SS |
80 | /* |
81 | * Size of data area in message buffer on the TARGET (remote system). | |
82 | */ | |
83 | #define MAXDATA_T (target_config.max_msg_size - \ | |
84 | offsetof(struct write_r_msg_t,data[0])) | |
c5aa993b | 85 | /* |
c906108c SS |
86 | * Size of data area in message buffer on the HOST (gdb). |
87 | */ | |
88 | #define MAXDATA_H (BUFER_SIZE - offsetof(struct write_r_msg_t,data[0])) | |
89 | /* | |
90 | * Defined as the minimum size of data areas of the two message buffers | |
91 | */ | |
92 | #define MAXDATA (MAXDATA_H < MAXDATA_T ? MAXDATA_H : MAXDATA_T) | |
93 | ||
94 | static char out_buf[BUFER_SIZE]; | |
c5aa993b | 95 | static char in_buf[BUFER_SIZE]; |
c906108c | 96 | |
c5aa993b JM |
97 | int msg_recv_serial (); |
98 | int msg_send_serial (); | |
c906108c SS |
99 | |
100 | #define MAX_RETRIES 5000 | |
c5aa993b JM |
101 | extern struct target_ops mm_ops; /* Forward declaration */ |
102 | struct config_msg_t target_config; /* HIF needs this */ | |
103 | union msg_t *out_msg_buf = (union msg_t *) out_buf; | |
104 | union msg_t *in_msg_buf = (union msg_t *) in_buf; | |
c906108c SS |
105 | |
106 | static int timeout = 5; | |
107 | ||
108 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that | |
109 | mm_open knows that we don't have a file open when the program | |
110 | starts. */ | |
111 | int mm_desc = -1; | |
112 | ||
113 | /* stream which is fdopen'd from mm_desc. Only valid when | |
114 | mm_desc != -1. */ | |
115 | FILE *mm_stream; | |
116 | ||
117 | /* Called when SIGALRM signal sent due to alarm() timeout. */ | |
118 | #ifndef HAVE_TERMIO | |
119 | ||
120 | #ifndef __STDC__ | |
c5aa993b JM |
121 | #ifndef volatile |
122 | #define volatile | |
123 | /**/ | |
c906108c SS |
124 | # endif |
125 | #endif | |
126 | volatile int n_alarms; | |
127 | ||
128 | static void | |
129 | mm_timer () | |
130 | { | |
131 | #if 0 | |
132 | if (kiodebug) | |
133 | printf ("mm_timer called\n"); | |
134 | #endif | |
135 | n_alarms++; | |
136 | } | |
137 | #endif /* HAVE_TERMIO */ | |
138 | ||
139 | /* malloc'd name of the program on the remote system. */ | |
140 | static char *prog_name = NULL; | |
141 | ||
142 | ||
143 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
144 | NEED_ARTIFICIAL_TRAP calls to mm_wait should just return | |
145 | SIGTRAP without actually waiting for anything. */ | |
146 | ||
147 | /**************************************************** REMOTE_CREATE_INFERIOR */ | |
148 | /* This is called not only when we first attach, but also when the | |
149 | user types "run" after having attached. */ | |
150 | static void | |
151 | mm_create_inferior (execfile, args, env) | |
152 | char *execfile; | |
153 | char *args; | |
154 | char **env; | |
155 | { | |
156 | #define MAX_TOKENS 25 | |
157 | #define BUFFER_SIZE 256 | |
c5aa993b JM |
158 | int token_count; |
159 | int result; | |
160 | char *token[MAX_TOKENS]; | |
161 | char cmd_line[BUFFER_SIZE]; | |
c906108c SS |
162 | |
163 | if (args && *args) | |
164 | error ("Can't pass arguments to remote mm process (yet)."); | |
165 | ||
166 | if (execfile == 0 /* || exec_bfd == 0 */ ) | |
167 | error ("No executable file specified"); | |
168 | ||
c5aa993b JM |
169 | if (!mm_stream) |
170 | { | |
171 | printf ("Minimon not open yet.\n"); | |
172 | return; | |
173 | } | |
c906108c SS |
174 | |
175 | /* On ultra3 (NYU) we assume the kernel is already running so there is | |
176 | no file to download. | |
177 | FIXME: Fixed required here -> load your program, possibly with mm_load(). | |
c5aa993b | 178 | */ |
c906108c SS |
179 | printf_filtered ("\n\ |
180 | Assuming you are at NYU debuging a kernel, i.e., no need to download.\n\n"); | |
181 | ||
182 | /* We will get a task spawn event immediately. */ | |
183 | init_wait_for_inferior (); | |
184 | clear_proceed_status (); | |
185 | stop_soon_quietly = 1; | |
186 | proceed (-1, TARGET_SIGNAL_DEFAULT, 0); | |
187 | normal_stop (); | |
188 | } | |
189 | /**************************************************** REMOTE_MOURN_INFERIOR */ | |
190 | static void | |
c5aa993b | 191 | mm_mourn () |
c906108c | 192 | { |
c5aa993b JM |
193 | pop_target (); /* Pop back to no-child state */ |
194 | generic_mourn_inferior (); | |
c906108c SS |
195 | } |
196 | ||
197 | /********************************************************************** damn_b | |
198 | */ | |
199 | /* Translate baud rates from integers to damn B_codes. Unix should | |
200 | have outgrown this crap years ago, but even POSIX wouldn't buck it. */ | |
201 | ||
202 | #ifndef B19200 | |
203 | #define B19200 EXTA | |
204 | #endif | |
205 | #ifndef B38400 | |
206 | #define B38400 EXTB | |
207 | #endif | |
208 | ||
c5aa993b JM |
209 | static struct |
210 | { | |
211 | int rate, damn_b; | |
212 | } | |
213 | baudtab[] = | |
214 | { | |
215 | { | |
216 | 0, B0 | |
217 | } | |
218 | , | |
219 | { | |
220 | 50, B50 | |
221 | } | |
222 | , | |
223 | { | |
224 | 75, B75 | |
225 | } | |
226 | , | |
227 | { | |
228 | 110, B110 | |
229 | } | |
230 | , | |
231 | { | |
232 | 134, B134 | |
233 | } | |
234 | , | |
235 | { | |
236 | 150, B150 | |
237 | } | |
238 | , | |
239 | { | |
240 | 200, B200 | |
241 | } | |
242 | , | |
243 | { | |
244 | 300, B300 | |
245 | } | |
246 | , | |
247 | { | |
248 | 600, B600 | |
249 | } | |
250 | , | |
251 | { | |
252 | 1200, B1200 | |
253 | } | |
254 | , | |
255 | { | |
256 | 1800, B1800 | |
257 | } | |
258 | , | |
259 | { | |
260 | 2400, B2400 | |
261 | } | |
262 | , | |
263 | { | |
264 | 4800, B4800 | |
265 | } | |
266 | , | |
267 | { | |
268 | 9600, B9600 | |
269 | } | |
270 | , | |
271 | { | |
272 | 19200, B19200 | |
273 | } | |
274 | , | |
275 | { | |
276 | 38400, B38400 | |
277 | } | |
278 | , | |
279 | { | |
280 | -1, -1 | |
281 | } | |
282 | , | |
c906108c SS |
283 | }; |
284 | ||
c5aa993b JM |
285 | static int |
286 | damn_b (rate) | |
c906108c SS |
287 | int rate; |
288 | { | |
289 | int i; | |
290 | ||
291 | for (i = 0; baudtab[i].rate != -1; i++) | |
c5aa993b JM |
292 | if (rate == baudtab[i].rate) |
293 | return baudtab[i].damn_b; | |
294 | return B38400; /* Random */ | |
c906108c SS |
295 | } |
296 | ||
297 | ||
298 | /***************************************************************** REMOTE_OPEN | |
299 | ** Open a connection to remote minimon. | |
300 | NAME is the filename used for communication, then a space, | |
301 | then the baud rate. | |
302 | 'target adapt /dev/ttya 9600 [prognam]' for example. | |
303 | */ | |
304 | ||
305 | static char *dev_name; | |
306 | int baudrate = 9600; | |
307 | static void | |
308 | mm_open (name, from_tty) | |
309 | char *name; | |
310 | int from_tty; | |
311 | { | |
312 | TERMINAL sg; | |
313 | unsigned int prl; | |
314 | char *p; | |
315 | ||
316 | /* Find the first whitespace character, it separates dev_name from | |
317 | prog_name. */ | |
318 | for (p = name; | |
319 | p && *p && !isspace (*p); p++) | |
320 | ; | |
321 | if (p == 0 || *p == '\0') | |
c5aa993b | 322 | erroid: |
c906108c | 323 | error ("Usage : <command> <serial-device> <baud-rate> [progname]"); |
c5aa993b | 324 | dev_name = (char *) xmalloc (p - name + 1); |
c906108c SS |
325 | strncpy (dev_name, name, p - name); |
326 | dev_name[p - name] = '\0'; | |
327 | ||
328 | /* Skip over the whitespace after dev_name */ | |
329 | for (; isspace (*p); p++) | |
c5aa993b JM |
330 | /*EMPTY */ ; |
331 | ||
c906108c SS |
332 | if (1 != sscanf (p, "%d ", &baudrate)) |
333 | goto erroid; | |
334 | ||
335 | /* Skip the number and then the spaces */ | |
336 | for (; isdigit (*p); p++) | |
c5aa993b | 337 | /*EMPTY */ ; |
c906108c | 338 | for (; isspace (*p); p++) |
c5aa993b JM |
339 | /*EMPTY */ ; |
340 | ||
c906108c SS |
341 | if (prog_name != NULL) |
342 | free (prog_name); | |
343 | prog_name = savestring (p, strlen (p)); | |
344 | ||
345 | ||
346 | if (mm_desc >= 0) | |
347 | close (mm_desc); | |
348 | ||
349 | mm_desc = open (dev_name, O_RDWR); | |
350 | if (mm_desc < 0) | |
351 | perror_with_name (dev_name); | |
352 | ioctl (mm_desc, TIOCGETP, &sg); | |
353 | #ifdef HAVE_TERMIO | |
354 | sg.c_cc[VMIN] = 0; /* read with timeout. */ | |
355 | sg.c_cc[VTIME] = timeout * 10; | |
356 | sg.c_lflag &= ~(ICANON | ECHO); | |
357 | sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate); | |
358 | #else | |
359 | sg.sg_ispeed = damn_b (baudrate); | |
360 | sg.sg_ospeed = damn_b (baudrate); | |
361 | sg.sg_flags |= RAW; | |
362 | sg.sg_flags |= ANYP; | |
363 | sg.sg_flags &= ~ECHO; | |
364 | #endif | |
365 | ||
366 | ||
367 | ioctl (mm_desc, TIOCSETP, &sg); | |
368 | mm_stream = fdopen (mm_desc, "r+"); | |
369 | ||
370 | push_target (&mm_ops); | |
371 | ||
372 | #ifndef HAVE_TERMIO | |
373 | #ifndef NO_SIGINTERRUPT | |
374 | /* Cause SIGALRM's to make reads fail with EINTR instead of resuming | |
375 | the read. */ | |
376 | if (siginterrupt (SIGALRM, 1) != 0) | |
377 | perror ("mm_open: error in siginterrupt"); | |
378 | #endif | |
379 | ||
380 | /* Set up read timeout timer. */ | |
381 | if ((void (*)) signal (SIGALRM, mm_timer) == (void (*)) -1) | |
382 | perror ("mm_open: error in signal"); | |
383 | #endif | |
384 | ||
385 | #if defined (LOG_FILE) | |
386 | log_file = fopen (LOG_FILE, "w"); | |
387 | if (log_file == NULL) | |
388 | perror_with_name (LOG_FILE); | |
389 | #endif | |
c5aa993b JM |
390 | /* |
391 | ** Initialize target configuration structure (global) | |
c906108c | 392 | */ |
c5aa993b JM |
393 | DRAIN_INPUT (); |
394 | out_msg_buf->config_req_msg.code = CONFIG_REQ; | |
395 | out_msg_buf->config_req_msg.length = 4 * 0; | |
396 | msg_send_serial (out_msg_buf); /* send config request message */ | |
c906108c | 397 | |
c5aa993b | 398 | expect_msg (CONFIG, in_msg_buf, 1); |
c906108c SS |
399 | |
400 | a29k_get_processor_type (); | |
401 | ||
402 | /* Print out some stuff, letting the user now what's going on */ | |
c5aa993b JM |
403 | printf_filtered ("Connected to MiniMon via %s.\n", dev_name); |
404 | /* FIXME: can this restriction be removed? */ | |
405 | printf_filtered ("Remote debugging using virtual addresses works only\n"); | |
406 | printf_filtered ("\twhen virtual addresses map 1:1 to physical addresses.\n") | |
407 | ; | |
408 | if (processor_type != a29k_freeze_mode) | |
409 | { | |
410 | fprintf_filtered (gdb_stderr, | |
411 | "Freeze-mode debugging not available, and can only be done on an A29050.\n"); | |
412 | } | |
c906108c | 413 | |
c5aa993b JM |
414 | target_config.code = CONFIG; |
415 | target_config.length = 0; | |
416 | target_config.processor_id = in_msg_buf->config_msg.processor_id; | |
417 | target_config.version = in_msg_buf->config_msg.version; | |
418 | target_config.I_mem_start = in_msg_buf->config_msg.I_mem_start; | |
419 | target_config.I_mem_size = in_msg_buf->config_msg.I_mem_size; | |
420 | target_config.D_mem_start = in_msg_buf->config_msg.D_mem_start; | |
421 | target_config.D_mem_size = in_msg_buf->config_msg.D_mem_size; | |
422 | target_config.ROM_start = in_msg_buf->config_msg.ROM_start; | |
423 | target_config.ROM_size = in_msg_buf->config_msg.ROM_size; | |
424 | target_config.max_msg_size = in_msg_buf->config_msg.max_msg_size; | |
425 | target_config.max_bkpts = in_msg_buf->config_msg.max_bkpts; | |
426 | target_config.coprocessor = in_msg_buf->config_msg.coprocessor; | |
427 | target_config.reserved = in_msg_buf->config_msg.reserved; | |
428 | if (from_tty) | |
429 | { | |
430 | printf ("Connected to MiniMON :\n"); | |
431 | printf (" Debugcore version %d.%d\n", | |
432 | 0x0f & (target_config.version >> 4), | |
433 | 0x0f & (target_config.version)); | |
434 | printf (" Configuration version %d.%d\n", | |
435 | 0x0f & (target_config.version >> 12), | |
436 | 0x0f & (target_config.version >> 8)); | |
437 | printf (" Message system version %d.%d\n", | |
438 | 0x0f & (target_config.version >> 20), | |
439 | 0x0f & (target_config.version >> 16)); | |
440 | printf (" Communication driver version %d.%d\n", | |
441 | 0x0f & (target_config.version >> 28), | |
442 | 0x0f & (target_config.version >> 24)); | |
443 | } | |
c906108c SS |
444 | |
445 | /* Leave the target running... | |
446 | * The above message stopped the target in the dbg core (MiniMon), | |
447 | * so restart the target out of MiniMon, | |
448 | */ | |
449 | out_msg_buf->go_msg.code = GO; | |
450 | out_msg_buf->go_msg.length = 0; | |
c5aa993b | 451 | msg_send_serial (out_msg_buf); |
c906108c SS |
452 | /* No message to expect after a GO */ |
453 | } | |
454 | ||
455 | /**************************************************************** REMOTE_CLOSE | |
456 | ** Close the open connection to the minimon debugger. | |
457 | Use this when you want to detach and do something else | |
458 | with your gdb. */ | |
459 | static void | |
c5aa993b | 460 | mm_close (quitting) /*FIXME: how is quitting used */ |
c906108c SS |
461 | int quitting; |
462 | { | |
463 | if (mm_desc < 0) | |
464 | error ("Can't close remote connection: not debugging remotely."); | |
465 | ||
466 | /* We should never get here if there isn't something valid in | |
467 | mm_desc and mm_stream. | |
468 | ||
469 | Due to a bug in Unix, fclose closes not only the stdio stream, | |
470 | but also the file descriptor. So we don't actually close | |
471 | mm_desc. */ | |
c5aa993b JM |
472 | DRAIN_INPUT (); |
473 | fclose (mm_stream); | |
c906108c SS |
474 | /* close (mm_desc); */ |
475 | ||
476 | /* Do not try to close mm_desc again, later in the program. */ | |
477 | mm_stream = NULL; | |
478 | mm_desc = -1; | |
479 | ||
480 | #if defined (LOG_FILE) | |
481 | if (ferror (log_file)) | |
482 | printf ("Error writing log file.\n"); | |
483 | if (fclose (log_file) != 0) | |
484 | printf ("Error closing log file.\n"); | |
485 | #endif | |
486 | ||
487 | printf ("Ending remote debugging\n"); | |
c5aa993b | 488 | } |
c906108c SS |
489 | |
490 | /************************************************************* REMOTE_ATACH */ | |
491 | /* Attach to a program that is already loaded and running | |
492 | * Upon exiting the process's execution is stopped. | |
493 | */ | |
494 | static void | |
495 | mm_attach (args, from_tty) | |
496 | char *args; | |
497 | int from_tty; | |
498 | { | |
499 | ||
500 | if (!mm_stream) | |
c5aa993b JM |
501 | error ("MiniMon not opened yet, use the 'target minimon' command.\n"); |
502 | ||
c906108c | 503 | if (from_tty) |
c5aa993b | 504 | printf ("Attaching to remote program %s...\n", prog_name); |
c906108c SS |
505 | |
506 | /* Make sure the target is currently running, it is supposed to be. */ | |
507 | /* FIXME: is it ok to send MiniMon a BREAK if it is already stopped in | |
c5aa993b | 508 | * the dbg core. If so, we don't need to send this GO. |
c906108c SS |
509 | */ |
510 | out_msg_buf->go_msg.code = GO; | |
511 | out_msg_buf->go_msg.length = 0; | |
c5aa993b JM |
512 | msg_send_serial (out_msg_buf); |
513 | sleep (2); /* At the worst it will stop, receive a message, continue */ | |
514 | ||
515 | /* Send the mm a break. */ | |
c906108c SS |
516 | out_msg_buf->break_msg.code = BREAK; |
517 | out_msg_buf->break_msg.length = 0; | |
c5aa993b | 518 | msg_send_serial (out_msg_buf); |
c906108c SS |
519 | } |
520 | /********************************************************** REMOTE_DETACH */ | |
521 | /* Terminate the open connection to the remote debugger. | |
522 | Use this when you want to detach and do something else | |
523 | with your gdb. Leave remote process running (with no breakpoints set). */ | |
524 | static void | |
c5aa993b | 525 | mm_detach (args, from_tty) |
c906108c SS |
526 | char *args; |
527 | int from_tty; | |
528 | { | |
c5aa993b | 529 | remove_breakpoints (); /* Just in case there were any left in */ |
c906108c SS |
530 | out_msg_buf->go_msg.code = GO; |
531 | out_msg_buf->go_msg.length = 0; | |
c5aa993b JM |
532 | msg_send_serial (out_msg_buf); |
533 | pop_target (); /* calls mm_close to do the real work */ | |
c906108c SS |
534 | } |
535 | ||
536 | ||
537 | /*************************************************************** REMOTE_RESUME | |
538 | ** Tell the remote machine to resume. */ | |
539 | ||
540 | static void | |
541 | mm_resume (pid, step, sig) | |
542 | int pid, step; | |
543 | enum target_signal sig; | |
544 | { | |
545 | if (sig != TARGET_SIGNAL_0) | |
546 | warning ("Can't send signals to a remote MiniMon system."); | |
547 | ||
c5aa993b JM |
548 | if (step) |
549 | { | |
550 | out_msg_buf->step_msg.code = STEP; | |
551 | out_msg_buf->step_msg.length = 1 * 4; | |
552 | out_msg_buf->step_msg.count = 1; /* step 1 instruction */ | |
553 | msg_send_serial (out_msg_buf); | |
554 | } | |
555 | else | |
556 | { | |
557 | out_msg_buf->go_msg.code = GO; | |
c906108c | 558 | out_msg_buf->go_msg.length = 0; |
c5aa993b JM |
559 | msg_send_serial (out_msg_buf); |
560 | } | |
c906108c SS |
561 | } |
562 | ||
563 | /***************************************************************** REMOTE_WAIT | |
564 | ** Wait until the remote machine stops, then return, | |
565 | storing status in STATUS just as `wait' would. */ | |
566 | ||
567 | static int | |
568 | mm_wait (status) | |
569 | struct target_waitstatus *status; | |
570 | { | |
571 | int i, result; | |
572 | int old_timeout = timeout; | |
573 | int old_immediate_quit = immediate_quit; | |
574 | ||
575 | status->kind = TARGET_WAITKIND_EXITED; | |
576 | status->value.integer = 0; | |
577 | ||
578 | /* wait for message to arrive. It should be: | |
c5aa993b JM |
579 | - A HIF service request. |
580 | - A HIF exit service request. | |
581 | - A CHANNEL0_ACK. | |
582 | - A CHANNEL1 request. | |
583 | - a debugcore HALT message. | |
584 | HIF services must be responded too, and while-looping continued. | |
585 | If the target stops executing, mm_wait() should return. | |
586 | */ | |
587 | timeout = 0; /* Wait indefinetly for a message */ | |
588 | immediate_quit = 1; /* Helps ability to QUIT */ | |
589 | while (1) | |
c906108c | 590 | { |
c5aa993b JM |
591 | while (msg_recv_serial (in_msg_buf)) |
592 | { | |
593 | QUIT; /* Let user quit if they want */ | |
594 | } | |
595 | switch (in_msg_buf->halt_msg.code) | |
596 | { | |
597 | case HIF_CALL: | |
598 | i = in_msg_buf->hif_call_rtn_msg.service_number; | |
599 | result = service_HIF (in_msg_buf); | |
600 | if (i == 1) /* EXIT */ | |
c906108c | 601 | goto exit; |
c5aa993b JM |
602 | if (result) |
603 | printf ("Warning: failure during HIF service %d\n", i); | |
604 | break; | |
605 | case CHANNEL0_ACK: | |
606 | service_HIF (in_msg_buf); | |
607 | break; | |
608 | case CHANNEL1: | |
609 | i = in_msg_buf->channel1_msg.length; | |
610 | in_msg_buf->channel1_msg.data[i] = '\0'; | |
611 | printf ("%s", in_msg_buf->channel1_msg.data); | |
612 | gdb_flush (gdb_stdout); | |
613 | /* Send CHANNEL1_ACK message */ | |
614 | out_msg_buf->channel1_ack_msg.code = CHANNEL1_ACK; | |
615 | out_msg_buf->channel1_ack_msg.length = 0; | |
616 | result = msg_send_serial (out_msg_buf); | |
617 | break; | |
618 | case HALT: | |
619 | goto halted; | |
620 | default: | |
621 | goto halted; | |
622 | } | |
c906108c | 623 | } |
c906108c SS |
624 | halted: |
625 | /* FIXME, these printfs should not be here. This is a source level | |
626 | debugger, guys! */ | |
c5aa993b | 627 | if (in_msg_buf->halt_msg.trap_number == 0) |
c906108c | 628 | { |
c5aa993b JM |
629 | printf ("Am290*0 received vector number %d (break point)\n", |
630 | in_msg_buf->halt_msg.trap_number); | |
631 | status->kind = TARGET_WAITKIND_STOPPED; | |
632 | status->value.sig = TARGET_SIGNAL_TRAP; | |
633 | } | |
634 | else if (in_msg_buf->halt_msg.trap_number == 1) | |
635 | { | |
636 | printf ("Am290*0 received vector number %d\n", | |
637 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
638 | status->kind = TARGET_WAITKIND_STOPPED; |
639 | status->value.sig = TARGET_SIGNAL_BUS; | |
640 | } | |
c5aa993b JM |
641 | else if (in_msg_buf->halt_msg.trap_number == 3 |
642 | || in_msg_buf->halt_msg.trap_number == 4) | |
643 | { | |
644 | printf ("Am290*0 received vector number %d\n", | |
645 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
646 | status->kind = TARGET_WAITKIND_STOPPED; |
647 | status->value.sig = TARGET_SIGNAL_FPE; | |
c5aa993b JM |
648 | } |
649 | else if (in_msg_buf->halt_msg.trap_number == 5) | |
650 | { | |
651 | printf ("Am290*0 received vector number %d\n", | |
652 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
653 | status->kind = TARGET_WAITKIND_STOPPED; |
654 | status->value.sig = TARGET_SIGNAL_ILL; | |
c5aa993b | 655 | } |
c906108c | 656 | else if (in_msg_buf->halt_msg.trap_number >= 6 |
c5aa993b JM |
657 | && in_msg_buf->halt_msg.trap_number <= 11) |
658 | { | |
659 | printf ("Am290*0 received vector number %d\n", | |
660 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
661 | status->kind = TARGET_WAITKIND_STOPPED; |
662 | status->value.sig = TARGET_SIGNAL_SEGV; | |
c5aa993b JM |
663 | } |
664 | else if (in_msg_buf->halt_msg.trap_number == 12 | |
665 | || in_msg_buf->halt_msg.trap_number == 13) | |
666 | { | |
667 | printf ("Am290*0 received vector number %d\n", | |
668 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
669 | status->kind = TARGET_WAITKIND_STOPPED; |
670 | status->value.sig = TARGET_SIGNAL_ILL; | |
c5aa993b JM |
671 | } |
672 | else if (in_msg_buf->halt_msg.trap_number == 14) | |
673 | { | |
674 | printf ("Am290*0 received vector number %d\n", | |
675 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
676 | status->kind = TARGET_WAITKIND_STOPPED; |
677 | status->value.sig = TARGET_SIGNAL_ALRM; | |
c5aa993b JM |
678 | } |
679 | else if (in_msg_buf->halt_msg.trap_number == 15) | |
c906108c SS |
680 | { |
681 | status->kind = TARGET_WAITKIND_STOPPED; | |
682 | status->value.sig = TARGET_SIGNAL_TRAP; | |
683 | } | |
684 | else if (in_msg_buf->halt_msg.trap_number >= 16 | |
c5aa993b JM |
685 | && in_msg_buf->halt_msg.trap_number <= 21) |
686 | { | |
687 | printf ("Am290*0 received vector number %d\n", | |
688 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
689 | status->kind = TARGET_WAITKIND_STOPPED; |
690 | status->value.sig = TARGET_SIGNAL_INT; | |
c5aa993b JM |
691 | } |
692 | else if (in_msg_buf->halt_msg.trap_number == 22) | |
693 | { | |
694 | printf ("Am290*0 received vector number %d\n", | |
695 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
696 | status->kind = TARGET_WAITKIND_STOPPED; |
697 | status->value.sig = TARGET_SIGNAL_ILL; | |
c5aa993b JM |
698 | } /* BREAK message was sent */ |
699 | else if (in_msg_buf->halt_msg.trap_number == 75) | |
c906108c SS |
700 | { |
701 | status->kind = TARGET_WAITKIND_STOPPED; | |
702 | status->value.sig = TARGET_SIGNAL_TRAP; | |
703 | } | |
704 | else | |
c5aa993b | 705 | exit: |
c906108c SS |
706 | { |
707 | status->kind = TARGET_WAITKIND_EXITED; | |
708 | status->value.integer = 0; | |
709 | } | |
710 | ||
711 | timeout = old_timeout; /* Restore original timeout value */ | |
712 | immediate_quit = old_immediate_quit; | |
713 | return 0; | |
714 | } | |
715 | ||
716 | /******************************************************* REMOTE_FETCH_REGISTERS | |
717 | * Read a remote register 'regno'. | |
718 | * If regno==-1 then read all the registers. | |
719 | */ | |
c5aa993b | 720 | static void |
c906108c | 721 | mm_fetch_registers (regno) |
c5aa993b | 722 | int regno; |
c906108c SS |
723 | { |
724 | INT32 *data_p; | |
725 | ||
c5aa993b JM |
726 | if (regno >= 0) |
727 | { | |
728 | fetch_register (regno); | |
729 | return; | |
730 | } | |
c906108c SS |
731 | |
732 | /* Gr1/rsp */ | |
c5aa993b | 733 | out_msg_buf->read_req_msg.byte_count = 4 * 1; |
c906108c SS |
734 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; |
735 | out_msg_buf->read_req_msg.address = 1; | |
c5aa993b JM |
736 | msg_send_serial (out_msg_buf); |
737 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c | 738 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
c5aa993b | 739 | supply_register (GR1_REGNUM, data_p); |
c906108c SS |
740 | |
741 | #if defined(GR64_REGNUM) /* Read gr64-127 */ | |
c5aa993b JM |
742 | /* Global Registers gr64-gr95 */ |
743 | out_msg_buf->read_req_msg.code = READ_REQ; | |
744 | out_msg_buf->read_req_msg.length = 4 * 3; | |
745 | out_msg_buf->read_req_msg.byte_count = 4 * 32; | |
c906108c SS |
746 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; |
747 | out_msg_buf->read_req_msg.address = 64; | |
c5aa993b JM |
748 | msg_send_serial (out_msg_buf); |
749 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
750 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
751 | ||
c5aa993b JM |
752 | for (regno = GR64_REGNUM; regno < GR64_REGNUM + 32; regno++) |
753 | { | |
c906108c | 754 | supply_register (regno, data_p++); |
c5aa993b JM |
755 | } |
756 | #endif /* GR64_REGNUM */ | |
c906108c | 757 | |
c5aa993b JM |
758 | /* Global Registers gr96-gr127 */ |
759 | out_msg_buf->read_req_msg.code = READ_REQ; | |
760 | out_msg_buf->read_req_msg.length = 4 * 3; | |
c906108c SS |
761 | out_msg_buf->read_req_msg.byte_count = 4 * 32; |
762 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
763 | out_msg_buf->read_req_msg.address = 96; | |
c5aa993b JM |
764 | msg_send_serial (out_msg_buf); |
765 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
766 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
767 | ||
c5aa993b JM |
768 | for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) |
769 | { | |
c906108c | 770 | supply_register (regno, data_p++); |
c5aa993b | 771 | } |
c906108c | 772 | |
c5aa993b | 773 | /* Local Registers */ |
c906108c SS |
774 | out_msg_buf->read_req_msg.byte_count = 4 * (128); |
775 | out_msg_buf->read_req_msg.memory_space = LOCAL_REG; | |
776 | out_msg_buf->read_req_msg.address = 0; | |
c5aa993b JM |
777 | msg_send_serial (out_msg_buf); |
778 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
779 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
780 | ||
c5aa993b JM |
781 | for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) |
782 | { | |
c906108c | 783 | supply_register (regno, data_p++); |
c5aa993b | 784 | } |
c906108c | 785 | |
c5aa993b JM |
786 | /* Protected Special Registers */ |
787 | out_msg_buf->read_req_msg.byte_count = 4 * 15; | |
c906108c SS |
788 | out_msg_buf->read_req_msg.memory_space = SPECIAL_REG; |
789 | out_msg_buf->read_req_msg.address = 0; | |
c5aa993b JM |
790 | msg_send_serial (out_msg_buf); |
791 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
792 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
793 | ||
c5aa993b JM |
794 | for (regno = 0; regno <= 14; regno++) |
795 | { | |
796 | supply_register (SR_REGNUM (regno), data_p++); | |
797 | } | |
798 | if (USE_SHADOW_PC) | |
799 | { /* Let regno_to_srnum() handle the register number */ | |
800 | fetch_register (NPC_REGNUM); | |
801 | fetch_register (PC_REGNUM); | |
802 | fetch_register (PC2_REGNUM); | |
803 | } | |
c906108c | 804 | |
c5aa993b JM |
805 | /* Unprotected Special Registers */ |
806 | out_msg_buf->read_req_msg.byte_count = 4 * 8; | |
c906108c SS |
807 | out_msg_buf->read_req_msg.memory_space = SPECIAL_REG; |
808 | out_msg_buf->read_req_msg.address = 128; | |
c5aa993b JM |
809 | msg_send_serial (out_msg_buf); |
810 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
811 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
812 | ||
c5aa993b JM |
813 | for (regno = 128; regno <= 135; regno++) |
814 | { | |
815 | supply_register (SR_REGNUM (regno), data_p++); | |
816 | } | |
c906108c SS |
817 | |
818 | /* There doesn't seem to be any way to get these. */ | |
819 | { | |
820 | int val = -1; | |
821 | supply_register (FPE_REGNUM, &val); | |
822 | supply_register (INTE_REGNUM, &val); | |
823 | supply_register (FPS_REGNUM, &val); | |
824 | supply_register (EXO_REGNUM, &val); | |
825 | } | |
826 | } | |
827 | ||
828 | ||
829 | /****************************************************** REMOTE_STORE_REGISTERS | |
830 | * Store register regno into the target. | |
831 | * If regno==-1 then store all the registers. | |
832 | * Result is 0 for success, -1 for failure. | |
833 | */ | |
834 | ||
835 | static void | |
836 | mm_store_registers (regno) | |
c5aa993b | 837 | int regno; |
c906108c SS |
838 | { |
839 | int result; | |
c5aa993b JM |
840 | |
841 | if (regno >= 0) | |
842 | { | |
843 | store_register (regno); | |
844 | return; | |
845 | } | |
c906108c SS |
846 | |
847 | result = 0; | |
848 | ||
c5aa993b | 849 | out_msg_buf->write_r_msg.code = WRITE_REQ; |
c906108c SS |
850 | |
851 | /* Gr1/rsp */ | |
c5aa993b JM |
852 | out_msg_buf->write_r_msg.byte_count = 4 * 1; |
853 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c SS |
854 | out_msg_buf->write_r_msg.memory_space = GLOBAL_REG; |
855 | out_msg_buf->write_r_msg.address = 1; | |
856 | out_msg_buf->write_r_msg.data[0] = read_register (GR1_REGNUM); | |
857 | ||
c5aa993b JM |
858 | msg_send_serial (out_msg_buf); |
859 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
860 | { | |
861 | result = -1; | |
862 | } | |
c906108c SS |
863 | |
864 | #if defined(GR64_REGNUM) | |
865 | /* Global registers gr64-gr95 */ | |
c5aa993b JM |
866 | out_msg_buf->write_r_msg.byte_count = 4 * (32); |
867 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c SS |
868 | out_msg_buf->write_r_msg.address = 64; |
869 | ||
c5aa993b | 870 | for (regno = GR64_REGNUM; regno < GR64_REGNUM + 32; regno++) |
c906108c | 871 | { |
c5aa993b | 872 | out_msg_buf->write_r_msg.data[regno - GR64_REGNUM] = read_register (regno); |
c906108c | 873 | } |
c5aa993b JM |
874 | msg_send_serial (out_msg_buf); |
875 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
876 | { | |
877 | result = -1; | |
878 | } | |
879 | #endif /* GR64_REGNUM */ | |
c906108c SS |
880 | |
881 | /* Global registers gr96-gr127 */ | |
c5aa993b JM |
882 | out_msg_buf->write_r_msg.byte_count = 4 * (32); |
883 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 884 | out_msg_buf->write_r_msg.address = 96; |
c5aa993b | 885 | for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) |
c906108c | 886 | { |
c5aa993b JM |
887 | out_msg_buf->write_r_msg.data[regno - GR96_REGNUM] = read_register (regno); |
888 | } | |
889 | msg_send_serial (out_msg_buf); | |
890 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
891 | { | |
892 | result = -1; | |
c906108c | 893 | } |
c906108c SS |
894 | |
895 | /* Local Registers */ | |
896 | out_msg_buf->write_r_msg.memory_space = LOCAL_REG; | |
c5aa993b JM |
897 | out_msg_buf->write_r_msg.byte_count = 4 * 128; |
898 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c SS |
899 | out_msg_buf->write_r_msg.address = 0; |
900 | ||
c5aa993b | 901 | for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) |
c906108c | 902 | { |
c5aa993b JM |
903 | out_msg_buf->write_r_msg.data[regno - LR0_REGNUM] = read_register (regno); |
904 | } | |
905 | msg_send_serial (out_msg_buf); | |
906 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
907 | { | |
908 | result = -1; | |
c906108c | 909 | } |
c906108c | 910 | |
c5aa993b | 911 | /* Protected Special Registers */ |
c906108c SS |
912 | /* VAB through TMR */ |
913 | out_msg_buf->write_r_msg.memory_space = SPECIAL_REG; | |
c5aa993b JM |
914 | out_msg_buf->write_r_msg.byte_count = 4 * 10; |
915 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 916 | out_msg_buf->write_r_msg.address = 0; |
c5aa993b JM |
917 | for (regno = 0; regno <= 9; regno++) /* VAB through TMR */ |
918 | out_msg_buf->write_r_msg.data[regno] = read_register (SR_REGNUM (regno)); | |
919 | msg_send_serial (out_msg_buf); | |
920 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
921 | { | |
922 | result = -1; | |
923 | } | |
c906108c SS |
924 | |
925 | /* PC0, PC1, PC2 possibly as shadow registers */ | |
c5aa993b JM |
926 | out_msg_buf->write_r_msg.byte_count = 4 * 3; |
927 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
928 | for (regno = 10; regno <= 12; regno++) /* LRU and MMU */ | |
929 | out_msg_buf->write_r_msg.data[regno - 10] = read_register (SR_REGNUM (regno)); | |
930 | if (USE_SHADOW_PC) | |
c906108c | 931 | out_msg_buf->write_r_msg.address = 20; /* SPC0 */ |
c5aa993b | 932 | else |
c906108c | 933 | out_msg_buf->write_r_msg.address = 10; /* PC0 */ |
c5aa993b JM |
934 | msg_send_serial (out_msg_buf); |
935 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
936 | { | |
937 | result = -1; | |
938 | } | |
c906108c SS |
939 | |
940 | /* LRU and MMU */ | |
c5aa993b JM |
941 | out_msg_buf->write_r_msg.byte_count = 4 * 2; |
942 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 943 | out_msg_buf->write_r_msg.address = 13; |
c5aa993b JM |
944 | for (regno = 13; regno <= 14; regno++) /* LRU and MMU */ |
945 | out_msg_buf->write_r_msg.data[regno - 13] = read_register (SR_REGNUM (regno)); | |
946 | msg_send_serial (out_msg_buf); | |
947 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
948 | { | |
949 | result = -1; | |
950 | } | |
c906108c | 951 | |
c5aa993b JM |
952 | /* Unprotected Special Registers */ |
953 | out_msg_buf->write_r_msg.byte_count = 4 * 8; | |
954 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 955 | out_msg_buf->write_r_msg.address = 128; |
c5aa993b JM |
956 | for (regno = 128; regno <= 135; regno++) |
957 | out_msg_buf->write_r_msg.data[regno - 128] = read_register (SR_REGNUM (regno)); | |
958 | msg_send_serial (out_msg_buf); | |
959 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
960 | { | |
961 | result = -1; | |
962 | } | |
963 | ||
c906108c SS |
964 | registers_changed (); |
965 | } | |
966 | ||
967 | /*************************************************** REMOTE_PREPARE_TO_STORE */ | |
968 | /* Get ready to modify the registers array. On machines which store | |
969 | individual registers, this doesn't need to do anything. On machines | |
970 | which store all the registers in one fell swoop, this makes sure | |
971 | that registers contains all the registers from the program being | |
972 | debugged. */ | |
973 | ||
974 | static void | |
975 | mm_prepare_to_store () | |
976 | { | |
977 | /* Do nothing, since we can store individual regs */ | |
978 | } | |
979 | ||
980 | /******************************************************* REMOTE_XFER_MEMORY */ | |
981 | static CORE_ADDR | |
c5aa993b JM |
982 | translate_addr (addr) |
983 | CORE_ADDR addr; | |
c906108c SS |
984 | { |
985 | #if defined(KERNEL_DEBUGGING) | |
c5aa993b JM |
986 | /* Check for a virtual address in the kernel */ |
987 | /* Assume physical address of ublock is in paddr_u register */ | |
988 | /* FIXME: doesn't work for user virtual addresses */ | |
989 | if (addr >= UVADDR) | |
990 | { | |
991 | /* PADDR_U register holds the physical address of the ublock */ | |
992 | CORE_ADDR i = (CORE_ADDR) read_register (PADDR_U_REGNUM); | |
993 | return (i + addr - (CORE_ADDR) UVADDR); | |
994 | } | |
995 | else | |
996 | { | |
997 | return (addr); | |
998 | } | |
c906108c | 999 | #else |
c5aa993b | 1000 | return (addr); |
c906108c SS |
1001 | #endif |
1002 | } | |
1003 | ||
1004 | /******************************************************* REMOTE_FILES_INFO */ | |
1005 | static void | |
1006 | mm_files_info () | |
1007 | { | |
1008 | printf ("\tAttached to %s at %d baud and running program %s.\n", | |
c5aa993b | 1009 | dev_name, baudrate, prog_name); |
c906108c SS |
1010 | } |
1011 | ||
1012 | /************************************************* REMOTE_INSERT_BREAKPOINT */ | |
1013 | static int | |
1014 | mm_insert_breakpoint (addr, contents_cache) | |
1015 | CORE_ADDR addr; | |
1016 | char *contents_cache; | |
1017 | { | |
1018 | out_msg_buf->bkpt_set_msg.code = BKPT_SET; | |
c5aa993b | 1019 | out_msg_buf->bkpt_set_msg.length = 4 * 4; |
c906108c SS |
1020 | out_msg_buf->bkpt_set_msg.memory_space = I_MEM; |
1021 | out_msg_buf->bkpt_set_msg.bkpt_addr = (ADDR32) addr; | |
1022 | out_msg_buf->bkpt_set_msg.pass_count = 1; | |
1023 | out_msg_buf->bkpt_set_msg.bkpt_type = -1; /* use illop for 29000 */ | |
c5aa993b JM |
1024 | msg_send_serial (out_msg_buf); |
1025 | if (expect_msg (BKPT_SET_ACK, in_msg_buf, 1)) | |
1026 | { | |
1027 | return 0; /* Success */ | |
1028 | } | |
1029 | else | |
1030 | { | |
1031 | return 1; /* Failure */ | |
1032 | } | |
c906108c SS |
1033 | } |
1034 | ||
1035 | /************************************************* REMOTE_DELETE_BREAKPOINT */ | |
1036 | static int | |
1037 | mm_remove_breakpoint (addr, contents_cache) | |
1038 | CORE_ADDR addr; | |
1039 | char *contents_cache; | |
1040 | { | |
1041 | out_msg_buf->bkpt_rm_msg.code = BKPT_RM; | |
c5aa993b | 1042 | out_msg_buf->bkpt_rm_msg.length = 4 * 3; |
c906108c SS |
1043 | out_msg_buf->bkpt_rm_msg.memory_space = I_MEM; |
1044 | out_msg_buf->bkpt_rm_msg.bkpt_addr = (ADDR32) addr; | |
c5aa993b JM |
1045 | msg_send_serial (out_msg_buf); |
1046 | if (expect_msg (BKPT_RM_ACK, in_msg_buf, 1)) | |
1047 | { | |
1048 | return 0; /* Success */ | |
1049 | } | |
1050 | else | |
1051 | { | |
1052 | return 1; /* Failure */ | |
1053 | } | |
c906108c SS |
1054 | } |
1055 | ||
1056 | ||
1057 | /******************************************************* REMOTE_KILL */ | |
1058 | static void | |
c5aa993b JM |
1059 | mm_kill (arg, from_tty) |
1060 | char *arg; | |
1061 | int from_tty; | |
c906108c | 1062 | { |
c5aa993b | 1063 | char buf[4]; |
c906108c SS |
1064 | |
1065 | #if defined(KERNEL_DEBUGGING) | |
c5aa993b JM |
1066 | /* We don't ever kill the kernel */ |
1067 | if (from_tty) | |
1068 | { | |
1069 | printf ("Kernel not killed, but left in current state.\n"); | |
1070 | printf ("Use detach to leave kernel running.\n"); | |
1071 | } | |
c906108c | 1072 | #else |
c5aa993b JM |
1073 | out_msg_buf->break_msg.code = BREAK; |
1074 | out_msg_buf->bkpt_set_msg.length = 4 * 0; | |
1075 | expect_msg (HALT, in_msg_buf, from_tty); | |
1076 | if (from_tty) | |
1077 | { | |
1078 | printf ("Target has been stopped."); | |
1079 | printf ("Would you like to do a hardware reset (y/n) [n] "); | |
1080 | fgets (buf, 3, stdin); | |
1081 | if (buf[0] == 'y') | |
1082 | { | |
1083 | out_msg_buf->reset_msg.code = RESET; | |
1084 | out_msg_buf->bkpt_set_msg.length = 4 * 0; | |
1085 | expect_msg (RESET_ACK, in_msg_buf, from_tty); | |
1086 | printf ("Target has been reset."); | |
c906108c | 1087 | } |
c5aa993b JM |
1088 | } |
1089 | pop_target (); | |
1090 | #endif | |
c906108c SS |
1091 | } |
1092 | ||
1093 | ||
1094 | ||
1095 | /***************************************************************************/ | |
1096 | /* | |
1097 | * Load a program into the target. | |
1098 | */ | |
1099 | static void | |
c5aa993b JM |
1100 | mm_load (arg_string, from_tty) |
1101 | char *arg_string; | |
1102 | int from_tty; | |
c906108c SS |
1103 | { |
1104 | dont_repeat (); | |
1105 | ||
1106 | #if defined(KERNEL_DEBUGGING) | |
c5aa993b | 1107 | printf ("The kernel had better be loaded already! Loading not done.\n"); |
c906108c SS |
1108 | #else |
1109 | if (arg_string == 0) | |
1110 | error ("The load command takes a file name"); | |
1111 | ||
1112 | arg_string = tilde_expand (arg_string); | |
1113 | make_cleanup (free, arg_string); | |
1114 | QUIT; | |
1115 | immediate_quit++; | |
c5aa993b | 1116 | error ("File loading is not yet supported for MiniMon."); |
c906108c SS |
1117 | /* FIXME, code to load your file here... */ |
1118 | /* You may need to do an init_target_mm() */ | |
1119 | /* init_target_mm(?,?,?,?,?,?,?,?); */ | |
1120 | immediate_quit--; | |
2df3850c | 1121 | /* symbol_file_add (arg_string, from_tty, text_addr, 0, 0); */ |
c906108c SS |
1122 | #endif |
1123 | ||
1124 | } | |
1125 | ||
1126 | /************************************************ REMOTE_WRITE_INFERIOR_MEMORY | |
1127 | ** Copy LEN bytes of data from debugger memory at MYADDR | |
1128 | to inferior's memory at MEMADDR. Returns number of bytes written. */ | |
1129 | static int | |
1130 | mm_write_inferior_memory (memaddr, myaddr, len) | |
1131 | CORE_ADDR memaddr; | |
1132 | char *myaddr; | |
1133 | int len; | |
1134 | { | |
c5aa993b JM |
1135 | int i, nwritten; |
1136 | ||
1137 | out_msg_buf->write_req_msg.code = WRITE_REQ; | |
1138 | out_msg_buf->write_req_msg.memory_space = mm_memory_space (memaddr); | |
1139 | ||
1140 | nwritten = 0; | |
1141 | while (nwritten < len) | |
1142 | { | |
1143 | int num_to_write = len - nwritten; | |
1144 | if (num_to_write > MAXDATA) | |
1145 | num_to_write = MAXDATA; | |
1146 | for (i = 0; i < num_to_write; i++) | |
1147 | out_msg_buf->write_req_msg.data[i] = myaddr[i + nwritten]; | |
1148 | out_msg_buf->write_req_msg.byte_count = num_to_write; | |
1149 | out_msg_buf->write_req_msg.length = 3 * 4 + num_to_write; | |
1150 | out_msg_buf->write_req_msg.address = memaddr + nwritten; | |
1151 | msg_send_serial (out_msg_buf); | |
1152 | ||
1153 | if (expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
1154 | { | |
1155 | nwritten += in_msg_buf->write_ack_msg.byte_count; | |
1156 | } | |
1157 | else | |
1158 | { | |
1159 | break; | |
1160 | } | |
1161 | } | |
1162 | return (nwritten); | |
c906108c SS |
1163 | } |
1164 | ||
1165 | /************************************************* REMOTE_READ_INFERIOR_MEMORY | |
1166 | ** Read LEN bytes from inferior memory at MEMADDR. Put the result | |
1167 | at debugger address MYADDR. Returns number of bytes read. */ | |
1168 | static int | |
c5aa993b | 1169 | mm_read_inferior_memory (memaddr, myaddr, len) |
c906108c SS |
1170 | CORE_ADDR memaddr; |
1171 | char *myaddr; | |
1172 | int len; | |
1173 | { | |
c5aa993b JM |
1174 | int i, nread; |
1175 | ||
1176 | out_msg_buf->read_req_msg.code = READ_REQ; | |
1177 | out_msg_buf->read_req_msg.memory_space = mm_memory_space (memaddr); | |
1178 | ||
1179 | nread = 0; | |
1180 | while (nread < len) | |
1181 | { | |
1182 | int num_to_read = (len - nread); | |
1183 | if (num_to_read > MAXDATA) | |
1184 | num_to_read = MAXDATA; | |
1185 | out_msg_buf->read_req_msg.byte_count = num_to_read; | |
1186 | out_msg_buf->read_req_msg.length = 3 * 4 + num_to_read; | |
1187 | out_msg_buf->read_req_msg.address = memaddr + nread; | |
1188 | msg_send_serial (out_msg_buf); | |
1189 | ||
1190 | if (expect_msg (READ_ACK, in_msg_buf, 1)) | |
1191 | { | |
1192 | for (i = 0; i < in_msg_buf->read_ack_msg.byte_count; i++) | |
1193 | myaddr[i + nread] = in_msg_buf->read_ack_msg.data[i]; | |
1194 | nread += in_msg_buf->read_ack_msg.byte_count; | |
1195 | } | |
1196 | else | |
1197 | { | |
1198 | break; | |
1199 | } | |
1200 | } | |
1201 | return (nread); | |
c906108c SS |
1202 | } |
1203 | ||
1204 | /* FIXME! Merge these two. */ | |
1205 | static int | |
1206 | mm_xfer_inferior_memory (memaddr, myaddr, len, write) | |
1207 | CORE_ADDR memaddr; | |
1208 | char *myaddr; | |
1209 | int len; | |
1210 | int write; | |
1211 | { | |
1212 | ||
c5aa993b | 1213 | memaddr = translate_addr (memaddr); |
c906108c SS |
1214 | |
1215 | if (write) | |
1216 | return mm_write_inferior_memory (memaddr, myaddr, len); | |
1217 | else | |
1218 | return mm_read_inferior_memory (memaddr, myaddr, len); | |
1219 | } | |
1220 | ||
1221 | ||
1222 | /********************************************************** MSG_SEND_SERIAL | |
1223 | ** This function is used to send a message over the | |
1224 | ** serial line. | |
1225 | ** | |
1226 | ** If the message is successfully sent, a zero is | |
1227 | ** returned. If the message was not sendable, a -1 | |
1228 | ** is returned. This function blocks. That is, it | |
1229 | ** does not return until the message is completely | |
1230 | ** sent, or until an error is encountered. | |
1231 | ** | |
1232 | */ | |
1233 | ||
1234 | int | |
c5aa993b JM |
1235 | msg_send_serial (msg_ptr) |
1236 | union msg_t *msg_ptr; | |
c906108c | 1237 | { |
c5aa993b JM |
1238 | INT32 message_size; |
1239 | int byte_count; | |
1240 | int result; | |
1241 | char c; | |
1242 | ||
1243 | /* Send message header */ | |
1244 | byte_count = 0; | |
1245 | message_size = msg_ptr->generic_msg.length + (2 * sizeof (INT32)); | |
1246 | do | |
1247 | { | |
1248 | c = *((char *) msg_ptr + byte_count); | |
1249 | result = write (mm_desc, &c, 1); | |
1250 | if (result == 1) | |
1251 | { | |
1252 | byte_count = byte_count + 1; | |
1253 | } | |
1254 | } | |
1255 | while ((byte_count < message_size)); | |
1256 | ||
1257 | return (0); | |
1258 | } /* end msg_send_serial() */ | |
c906108c SS |
1259 | |
1260 | /********************************************************** MSG_RECV_SERIAL | |
1261 | ** This function is used to receive a message over a | |
1262 | ** serial line. | |
1263 | ** | |
1264 | ** If the message is waiting in the buffer, a zero is | |
1265 | ** returned and the buffer pointed to by msg_ptr is filled | |
1266 | ** in. If no message was available, a -1 is returned. | |
1267 | ** If timeout==0, wait indefinetly for a character. | |
1268 | ** | |
1269 | */ | |
1270 | ||
1271 | int | |
c5aa993b JM |
1272 | msg_recv_serial (msg_ptr) |
1273 | union msg_t *msg_ptr; | |
c906108c | 1274 | { |
c5aa993b JM |
1275 | static INT32 length = 0; |
1276 | static INT32 byte_count = 0; | |
1277 | int result; | |
1278 | char c; | |
1279 | if (msg_ptr == 0) /* re-sync request */ | |
1280 | { | |
1281 | length = 0; | |
1282 | byte_count = 0; | |
c906108c | 1283 | #ifdef HAVE_TERMIO |
c5aa993b JM |
1284 | /* The timeout here is the prevailing timeout set with VTIME */ |
1285 | ->"timeout==0 semantics not supported" | |
1286 | read (mm_desc, in_buf, BUFER_SIZE); | |
c906108c | 1287 | #else |
c5aa993b JM |
1288 | alarm (1); |
1289 | read (mm_desc, in_buf, BUFER_SIZE); | |
1290 | alarm (0); | |
c906108c | 1291 | #endif |
c5aa993b JM |
1292 | return (0); |
1293 | } | |
1294 | /* Receive message */ | |
c906108c SS |
1295 | #ifdef HAVE_TERMIO |
1296 | /* Timeout==0, help support the mm_wait() routine */ | |
c5aa993b JM |
1297 | ->"timeout==0 semantics not supported (and its nice if they are)" |
1298 | result = read (mm_desc, &c, 1); | |
c906108c | 1299 | #else |
c5aa993b JM |
1300 | alarm (timeout); |
1301 | result = read (mm_desc, &c, 1); | |
c906108c SS |
1302 | alarm (0); |
1303 | #endif | |
c5aa993b JM |
1304 | if (result < 0) |
1305 | { | |
1306 | if (errno == EINTR) | |
1307 | { | |
1308 | error ("Timeout reading from remote system."); | |
1309 | } | |
1310 | else | |
c906108c | 1311 | perror_with_name ("remote"); |
c5aa993b JM |
1312 | } |
1313 | else if (result == 1) | |
1314 | { | |
1315 | *((char *) msg_ptr + byte_count) = c; | |
c906108c | 1316 | byte_count = byte_count + 1; |
c5aa993b | 1317 | } |
c906108c | 1318 | |
c5aa993b JM |
1319 | /* Message header received. Save message length. */ |
1320 | if (byte_count == (2 * sizeof (INT32))) | |
1321 | length = msg_ptr->generic_msg.length; | |
c906108c | 1322 | |
c5aa993b JM |
1323 | if (byte_count >= (length + (2 * sizeof (INT32)))) |
1324 | { | |
c906108c SS |
1325 | /* Message received */ |
1326 | byte_count = 0; | |
c5aa993b JM |
1327 | return (0); |
1328 | } | |
1329 | else | |
1330 | return (-1); | |
c906108c | 1331 | |
c5aa993b | 1332 | } /* end msg_recv_serial() */ |
c906108c SS |
1333 | |
1334 | /********************************************************************* KBD_RAW | |
1335 | ** This function is used to put the keyboard in "raw" | |
1336 | ** mode for BSD Unix. The original status is saved | |
1337 | ** so that it may be restored later. | |
1338 | */ | |
1339 | TERMINAL kbd_tbuf; | |
1340 | ||
1341 | int | |
c5aa993b JM |
1342 | kbd_raw () |
1343 | { | |
1344 | int result; | |
1345 | TERMINAL tbuf; | |
c906108c | 1346 | |
c5aa993b | 1347 | /* Get keyboard termio (to save to restore original modes) */ |
c906108c | 1348 | #ifdef HAVE_TERMIO |
c5aa993b | 1349 | result = ioctl (0, TCGETA, &kbd_tbuf); |
c906108c | 1350 | #else |
c5aa993b | 1351 | result = ioctl (0, TIOCGETP, &kbd_tbuf); |
c906108c | 1352 | #endif |
c5aa993b JM |
1353 | if (result == -1) |
1354 | return (errno); | |
c906108c | 1355 | |
c5aa993b | 1356 | /* Get keyboard TERMINAL (for modification) */ |
c906108c | 1357 | #ifdef HAVE_TERMIO |
c5aa993b | 1358 | result = ioctl (0, TCGETA, &tbuf); |
c906108c | 1359 | #else |
c5aa993b | 1360 | result = ioctl (0, TIOCGETP, &tbuf); |
c906108c | 1361 | #endif |
c5aa993b JM |
1362 | if (result == -1) |
1363 | return (errno); | |
c906108c | 1364 | |
c5aa993b | 1365 | /* Set up new parameters */ |
c906108c | 1366 | #ifdef HAVE_TERMIO |
c5aa993b JM |
1367 | tbuf.c_iflag = tbuf.c_iflag & |
1368 | ~(INLCR | ICRNL | IUCLC | ISTRIP | IXON | BRKINT); | |
1369 | tbuf.c_lflag = tbuf.c_lflag & ~(ICANON | ISIG | ECHO); | |
1370 | tbuf.c_cc[4] = 0; /* MIN */ | |
1371 | tbuf.c_cc[5] = 0; /* TIME */ | |
c906108c | 1372 | #else |
c5aa993b JM |
1373 | /* FIXME: not sure if this is correct (matches HAVE_TERMIO). */ |
1374 | tbuf.sg_flags |= RAW; | |
1375 | tbuf.sg_flags |= ANYP; | |
1376 | tbuf.sg_flags &= ~ECHO; | |
c906108c SS |
1377 | #endif |
1378 | ||
c5aa993b | 1379 | /* Set keyboard termio to new mode (RAW) */ |
c906108c | 1380 | #ifdef HAVE_TERMIO |
c5aa993b | 1381 | result = ioctl (0, TCSETAF, &tbuf); |
c906108c | 1382 | #else |
c5aa993b JM |
1383 | result = ioctl (0, TIOCSETP, &tbuf); |
1384 | #endif | |
1385 | if (result == -1) | |
1386 | return (errno); | |
c906108c | 1387 | |
c5aa993b JM |
1388 | return (0); |
1389 | } /* end kbd_raw() */ | |
c906108c SS |
1390 | |
1391 | ||
1392 | ||
1393 | /***************************************************************** KBD_RESTORE | |
1394 | ** This function is used to put the keyboard back in the | |
1395 | ** mode it was in before kbk_raw was called. Note that | |
1396 | ** kbk_raw() must have been called at least once before | |
1397 | ** kbd_restore() is called. | |
1398 | */ | |
1399 | ||
1400 | int | |
c5aa993b JM |
1401 | kbd_restore () |
1402 | { | |
1403 | int result; | |
c906108c | 1404 | |
c5aa993b | 1405 | /* Set keyboard termio to original mode */ |
c906108c | 1406 | #ifdef HAVE_TERMIO |
c5aa993b | 1407 | result = ioctl (0, TCSETAF, &kbd_tbuf); |
c906108c | 1408 | #else |
c5aa993b | 1409 | result = ioctl (0, TIOCGETP, &kbd_tbuf); |
c906108c SS |
1410 | #endif |
1411 | ||
c5aa993b JM |
1412 | if (result == -1) |
1413 | return (errno); | |
c906108c | 1414 | |
c5aa993b JM |
1415 | return (0); |
1416 | } /* end kbd_cooked() */ | |
c906108c SS |
1417 | |
1418 | ||
c5aa993b | 1419 | /*****************************************************************************/ |
c906108c SS |
1420 | /* Fetch a single register indicatated by 'regno'. |
1421 | * Returns 0/-1 on success/failure. | |
1422 | */ | |
1423 | static int | |
1424 | fetch_register (regno) | |
1425 | int regno; | |
1426 | { | |
c5aa993b JM |
1427 | int result; |
1428 | out_msg_buf->read_req_msg.code = READ_REQ; | |
1429 | out_msg_buf->read_req_msg.length = 4 * 3; | |
c906108c SS |
1430 | out_msg_buf->read_req_msg.byte_count = 4; |
1431 | ||
1432 | if (regno == GR1_REGNUM) | |
c5aa993b JM |
1433 | { |
1434 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
1435 | out_msg_buf->read_req_msg.address = 1; | |
1436 | } | |
c906108c | 1437 | else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32) |
c5aa993b JM |
1438 | { |
1439 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
1440 | out_msg_buf->read_req_msg.address = (regno - GR96_REGNUM) + 96; | |
1441 | } | |
c906108c | 1442 | #if defined(GR64_REGNUM) |
c5aa993b JM |
1443 | else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32) |
1444 | { | |
1445 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
1446 | out_msg_buf->read_req_msg.address = (regno - GR64_REGNUM) + 64; | |
1447 | } | |
1448 | #endif /* GR64_REGNUM */ | |
c906108c | 1449 | else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128) |
c5aa993b JM |
1450 | { |
1451 | out_msg_buf->read_req_msg.memory_space = LOCAL_REG; | |
1452 | out_msg_buf->read_req_msg.address = (regno - LR0_REGNUM); | |
1453 | } | |
1454 | else if (regno >= FPE_REGNUM && regno <= EXO_REGNUM) | |
1455 | { | |
1456 | int val = -1; | |
1457 | supply_register (160 + (regno - FPE_REGNUM), &val); | |
1458 | return 0; /* Pretend Success */ | |
1459 | } | |
1460 | else | |
1461 | { | |
1462 | out_msg_buf->read_req_msg.memory_space = SPECIAL_REG; | |
1463 | out_msg_buf->read_req_msg.address = regnum_to_srnum (regno); | |
1464 | } | |
1465 | ||
1466 | msg_send_serial (out_msg_buf); | |
1467 | ||
1468 | if (expect_msg (READ_ACK, in_msg_buf, 1)) | |
1469 | { | |
1470 | supply_register (regno, &(in_msg_buf->read_r_ack_msg.data[0])); | |
1471 | result = 0; | |
1472 | } | |
1473 | else | |
1474 | { | |
1475 | result = -1; | |
1476 | } | |
c906108c SS |
1477 | return result; |
1478 | } | |
c5aa993b | 1479 | /*****************************************************************************/ |
c906108c SS |
1480 | /* Store a single register indicated by 'regno'. |
1481 | * Returns 0/-1 on success/failure. | |
1482 | */ | |
1483 | static int | |
1484 | store_register (regno) | |
1485 | int regno; | |
1486 | { | |
c5aa993b | 1487 | int result; |
c906108c | 1488 | |
c5aa993b JM |
1489 | out_msg_buf->write_req_msg.code = WRITE_REQ; |
1490 | out_msg_buf->write_req_msg.length = 4 * 4; | |
c906108c SS |
1491 | out_msg_buf->write_req_msg.byte_count = 4; |
1492 | out_msg_buf->write_r_msg.data[0] = read_register (regno); | |
1493 | ||
1494 | if (regno == GR1_REGNUM) | |
c5aa993b JM |
1495 | { |
1496 | out_msg_buf->write_req_msg.memory_space = GLOBAL_REG; | |
1497 | out_msg_buf->write_req_msg.address = 1; | |
1498 | /* Setting GR1 changes the numbers of all the locals, so invalidate the | |
1499 | * register cache. Do this *after* calling read_register, because we want | |
1500 | * read_register to return the value that write_register has just stuffed | |
1501 | * into the registers array, not the value of the register fetched from | |
1502 | * the inferior. | |
1503 | */ | |
1504 | registers_changed (); | |
1505 | } | |
c906108c | 1506 | #if defined(GR64_REGNUM) |
c5aa993b JM |
1507 | else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32) |
1508 | { | |
1509 | out_msg_buf->write_req_msg.memory_space = GLOBAL_REG; | |
1510 | out_msg_buf->write_req_msg.address = (regno - GR64_REGNUM) + 64; | |
1511 | } | |
1512 | #endif /* GR64_REGNUM */ | |
c906108c | 1513 | else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32) |
c5aa993b JM |
1514 | { |
1515 | out_msg_buf->write_req_msg.memory_space = GLOBAL_REG; | |
1516 | out_msg_buf->write_req_msg.address = (regno - GR96_REGNUM) + 96; | |
1517 | } | |
c906108c | 1518 | else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128) |
c5aa993b JM |
1519 | { |
1520 | out_msg_buf->write_req_msg.memory_space = LOCAL_REG; | |
1521 | out_msg_buf->write_req_msg.address = (regno - LR0_REGNUM); | |
1522 | } | |
1523 | else if (regno >= FPE_REGNUM && regno <= EXO_REGNUM) | |
1524 | { | |
1525 | return 0; /* Pretend Success */ | |
1526 | } | |
1527 | else | |
1528 | /* An unprotected or protected special register */ | |
1529 | { | |
1530 | out_msg_buf->write_req_msg.memory_space = SPECIAL_REG; | |
1531 | out_msg_buf->write_req_msg.address = regnum_to_srnum (regno); | |
1532 | } | |
c906108c | 1533 | |
c5aa993b | 1534 | msg_send_serial (out_msg_buf); |
c906108c | 1535 | |
c5aa993b JM |
1536 | if (expect_msg (WRITE_ACK, in_msg_buf, 1)) |
1537 | { | |
1538 | result = 0; | |
1539 | } | |
1540 | else | |
1541 | { | |
1542 | result = -1; | |
1543 | } | |
c906108c SS |
1544 | return result; |
1545 | } | |
1546 | /****************************************************************************/ | |
1547 | /* | |
1548 | * Convert a gdb special register number to a 29000 special register number. | |
1549 | */ | |
1550 | static int | |
c5aa993b JM |
1551 | regnum_to_srnum (regno) |
1552 | int regno; | |
c906108c | 1553 | { |
c5aa993b JM |
1554 | switch (regno) |
1555 | { | |
1556 | case VAB_REGNUM: | |
1557 | return (0); | |
1558 | case OPS_REGNUM: | |
1559 | return (1); | |
1560 | case CPS_REGNUM: | |
1561 | return (2); | |
1562 | case CFG_REGNUM: | |
1563 | return (3); | |
1564 | case CHA_REGNUM: | |
1565 | return (4); | |
1566 | case CHD_REGNUM: | |
1567 | return (5); | |
1568 | case CHC_REGNUM: | |
1569 | return (6); | |
1570 | case RBP_REGNUM: | |
1571 | return (7); | |
1572 | case TMC_REGNUM: | |
1573 | return (8); | |
1574 | case TMR_REGNUM: | |
1575 | return (9); | |
1576 | case NPC_REGNUM: | |
1577 | return (USE_SHADOW_PC ? (20) : (10)); | |
1578 | case PC_REGNUM: | |
1579 | return (USE_SHADOW_PC ? (21) : (11)); | |
1580 | case PC2_REGNUM: | |
1581 | return (USE_SHADOW_PC ? (22) : (12)); | |
1582 | case MMU_REGNUM: | |
1583 | return (13); | |
1584 | case LRU_REGNUM: | |
1585 | return (14); | |
1586 | case IPC_REGNUM: | |
1587 | return (128); | |
1588 | case IPA_REGNUM: | |
1589 | return (129); | |
1590 | case IPB_REGNUM: | |
1591 | return (130); | |
1592 | case Q_REGNUM: | |
1593 | return (131); | |
1594 | case ALU_REGNUM: | |
1595 | return (132); | |
1596 | case BP_REGNUM: | |
1597 | return (133); | |
1598 | case FC_REGNUM: | |
1599 | return (134); | |
1600 | case CR_REGNUM: | |
1601 | return (135); | |
1602 | case FPE_REGNUM: | |
1603 | return (160); | |
1604 | case INTE_REGNUM: | |
1605 | return (161); | |
1606 | case FPS_REGNUM: | |
1607 | return (162); | |
1608 | case EXO_REGNUM: | |
1609 | return (164); | |
1610 | default: | |
1611 | return (255); /* Failure ? */ | |
1612 | } | |
c906108c SS |
1613 | } |
1614 | /****************************************************************************/ | |
1615 | /* | |
1616 | * Initialize the target debugger (minimon only). | |
1617 | */ | |
1618 | static void | |
c5aa993b JM |
1619 | init_target_mm (tstart, tend, dstart, dend, entry, ms_size, rs_size, arg_start) |
1620 | ADDR32 tstart, tend, dstart, dend, entry; | |
1621 | INT32 ms_size, rs_size; | |
1622 | ADDR32 arg_start; | |
c906108c | 1623 | { |
c5aa993b JM |
1624 | out_msg_buf->init_msg.code = INIT; |
1625 | out_msg_buf->init_msg.length = sizeof (struct init_msg_t) - 2 * sizeof (INT32); | |
1626 | out_msg_buf->init_msg.text_start = tstart; | |
1627 | out_msg_buf->init_msg.text_end = tend; | |
1628 | out_msg_buf->init_msg.data_start = dstart; | |
1629 | out_msg_buf->init_msg.data_end = dend; | |
1630 | out_msg_buf->init_msg.entry_point = entry; | |
1631 | out_msg_buf->init_msg.mem_stack_size = ms_size; | |
1632 | out_msg_buf->init_msg.reg_stack_size = rs_size; | |
1633 | out_msg_buf->init_msg.arg_start = arg_start; | |
1634 | msg_send_serial (out_msg_buf); | |
1635 | expect_msg (INIT_ACK, in_msg_buf, 1); | |
c906108c SS |
1636 | } |
1637 | /****************************************************************************/ | |
1638 | /* | |
1639 | * Return a pointer to a string representing the given message code. | |
1640 | * Not all messages are represented here, only the ones that we expect | |
1641 | * to be called with. | |
1642 | */ | |
c5aa993b JM |
1643 | static char * |
1644 | msg_str (code) | |
1645 | INT32 code; | |
c906108c | 1646 | { |
c5aa993b JM |
1647 | static char cbuf[32]; |
1648 | ||
1649 | switch (code) | |
1650 | { | |
1651 | case BKPT_SET_ACK: | |
1652 | sprintf (cbuf, "%s (%d)", "BKPT_SET_ACK", code); | |
1653 | break; | |
1654 | case BKPT_RM_ACK: | |
1655 | sprintf (cbuf, "%s (%d)", "BKPT_RM_ACK", code); | |
1656 | break; | |
1657 | case INIT_ACK: | |
1658 | sprintf (cbuf, "%s (%d)", "INIT_ACK", code); | |
1659 | break; | |
1660 | case READ_ACK: | |
1661 | sprintf (cbuf, "%s (%d)", "READ_ACK", code); | |
1662 | break; | |
1663 | case WRITE_ACK: | |
1664 | sprintf (cbuf, "%s (%d)", "WRITE_ACK", code); | |
1665 | break; | |
1666 | case ERROR: | |
1667 | sprintf (cbuf, "%s (%d)", "ERROR", code); | |
1668 | break; | |
1669 | case HALT: | |
1670 | sprintf (cbuf, "%s (%d)", "HALT", code); | |
1671 | break; | |
1672 | default: | |
1673 | sprintf (cbuf, "UNKNOWN (%d)", code); | |
1674 | break; | |
1675 | } | |
1676 | return (cbuf); | |
c906108c SS |
1677 | } |
1678 | /****************************************************************************/ | |
1679 | /* | |
1680 | * Selected (not all of them) error codes that we might get. | |
1681 | */ | |
c5aa993b JM |
1682 | static char * |
1683 | error_msg_str (code) | |
1684 | INT32 code; | |
c906108c | 1685 | { |
c5aa993b JM |
1686 | static char cbuf[50]; |
1687 | ||
1688 | switch (code) | |
1689 | { | |
1690 | case EMFAIL: | |
1691 | return ("EMFAIL: unrecoverable error"); | |
1692 | case EMBADADDR: | |
1693 | return ("EMBADADDR: Illegal address"); | |
1694 | case EMBADREG: | |
1695 | return ("EMBADREG: Illegal register "); | |
1696 | case EMACCESS: | |
1697 | return ("EMACCESS: Could not access memory"); | |
1698 | case EMBADMSG: | |
1699 | return ("EMBADMSG: Unknown message type"); | |
1700 | case EMMSG2BIG: | |
1701 | return ("EMMSG2BIG: Message to large"); | |
1702 | case EMNOSEND: | |
1703 | return ("EMNOSEND: Could not send message"); | |
1704 | case EMNORECV: | |
1705 | return ("EMNORECV: Could not recv message"); | |
1706 | case EMRESET: | |
1707 | return ("EMRESET: Could not RESET target"); | |
1708 | case EMCONFIG: | |
1709 | return ("EMCONFIG: Could not get target CONFIG"); | |
1710 | case EMSTATUS: | |
1711 | return ("EMSTATUS: Could not get target STATUS"); | |
1712 | case EMREAD: | |
1713 | return ("EMREAD: Could not READ target memory"); | |
1714 | case EMWRITE: | |
1715 | return ("EMWRITE: Could not WRITE target memory"); | |
1716 | case EMBKPTSET: | |
1717 | return ("EMBKPTSET: Could not set breakpoint"); | |
1718 | case EMBKPTRM: | |
1719 | return ("EMBKPTRM: Could not remove breakpoint"); | |
1720 | case EMBKPTSTAT: | |
1721 | return ("EMBKPTSTAT: Could not get breakpoint status"); | |
1722 | case EMBKPTNONE: | |
1723 | return ("EMBKPTNONE: All breakpoints in use"); | |
1724 | case EMBKPTUSED: | |
1725 | return ("EMBKPTUSED: Breakpoints already in use"); | |
1726 | case EMINIT: | |
1727 | return ("EMINIT: Could not init target memory"); | |
1728 | case EMGO: | |
1729 | return ("EMGO: Could not start execution"); | |
1730 | case EMSTEP: | |
1731 | return ("EMSTEP: Could not single step"); | |
1732 | case EMBREAK: | |
1733 | return ("EMBREAK: Could not BREAK"); | |
1734 | case EMCOMMERR: | |
1735 | return ("EMCOMMERR: Communication error"); | |
1736 | default: | |
1737 | sprintf (cbuf, "error number %d", code); | |
1738 | break; | |
1739 | } /* end switch */ | |
1740 | ||
1741 | return (cbuf); | |
c906108c SS |
1742 | } |
1743 | /****************************************************************************/ | |
1744 | /* | |
1745 | * Receive a message and expect it to be of type msgcode. | |
1746 | * Returns 0/1 on failure/success. | |
1747 | */ | |
1748 | static int | |
c5aa993b JM |
1749 | expect_msg (msgcode, msg_buf, from_tty) |
1750 | INT32 msgcode; /* Msg code we expect */ | |
1751 | union msg_t *msg_buf; /* Where to put the message received */ | |
1752 | int from_tty; /* Print message on error if non-zero */ | |
c906108c | 1753 | { |
c5aa993b JM |
1754 | int retries = 0; |
1755 | while (msg_recv_serial (msg_buf) && (retries++ < MAX_RETRIES)); | |
1756 | if (retries >= MAX_RETRIES) | |
1757 | { | |
1758 | printf ("Expected msg %s, ", msg_str (msgcode)); | |
1759 | printf ("no message received!\n"); | |
1760 | return (0); /* Failure */ | |
1761 | } | |
c906108c | 1762 | |
c5aa993b JM |
1763 | if (msg_buf->generic_msg.code != msgcode) |
1764 | { | |
1765 | if (from_tty) | |
1766 | { | |
1767 | printf ("Expected msg %s, ", msg_str (msgcode)); | |
1768 | printf ("got msg %s\n", msg_str (msg_buf->generic_msg.code)); | |
1769 | if (msg_buf->generic_msg.code == ERROR) | |
1770 | printf ("%s\n", error_msg_str (msg_buf->error_msg.error_code)); | |
1771 | } | |
1772 | return (0); /* Failure */ | |
1773 | } | |
1774 | return (1); /* Success */ | |
1775 | } | |
c906108c SS |
1776 | /****************************************************************************/ |
1777 | /* | |
1778 | * Determine the MiniMon memory space qualifier based on the addr. | |
1779 | * FIXME: Can't distinguis I_ROM/D_ROM. | |
1780 | * FIXME: Doesn't know anything about I_CACHE/D_CACHE. | |
1781 | */ | |
1782 | static int | |
c5aa993b JM |
1783 | mm_memory_space (addr) |
1784 | CORE_ADDR *addr; | |
c906108c | 1785 | { |
c5aa993b JM |
1786 | ADDR32 tstart = target_config.I_mem_start; |
1787 | ADDR32 tend = tstart + target_config.I_mem_size; | |
1788 | ADDR32 dstart = target_config.D_mem_start; | |
1789 | ADDR32 dend = tstart + target_config.D_mem_size; | |
1790 | ADDR32 rstart = target_config.ROM_start; | |
1791 | ADDR32 rend = tstart + target_config.ROM_size; | |
1792 | ||
1793 | if (((ADDR32) addr >= tstart) && ((ADDR32) addr < tend)) | |
1794 | { | |
1795 | return I_MEM; | |
1796 | } | |
1797 | else if (((ADDR32) addr >= dstart) && ((ADDR32) addr < dend)) | |
1798 | { | |
1799 | return D_MEM; | |
1800 | } | |
1801 | else if (((ADDR32) addr >= rstart) && ((ADDR32) addr < rend)) | |
1802 | { | |
1803 | /* FIXME: how do we determine between D_ROM and I_ROM */ | |
1804 | return D_ROM; | |
1805 | } | |
1806 | else /* FIXME: what do me do now? */ | |
1807 | return D_MEM; /* Hmmm! */ | |
c906108c SS |
1808 | } |
1809 | ||
1810 | /****************************************************************************/ | |
1811 | /* | |
1812 | * Define the target subroutine names | |
1813 | */ | |
c5aa993b | 1814 | struct target_ops mm_ops; |
c906108c | 1815 | |
c5aa993b JM |
1816 | static void |
1817 | init_mm_ops (void) | |
c906108c | 1818 | { |
c5aa993b JM |
1819 | mm_ops.to_shortname = "minimon"; |
1820 | mm_ops.to_longname = "Remote AMD/Minimon target"; | |
1821 | mm_ops.to_doc = "Remote debug an AMD 290*0 using the MiniMon dbg core on the target"; | |
1822 | mm_ops.to_open = mm_open; | |
1823 | mm_ops.to_close = mm_close; | |
1824 | mm_ops.to_attach = mm_attach; | |
c906108c SS |
1825 | mm_ops.to_post_attach = NULL; |
1826 | mm_ops.to_require_attach = NULL; | |
c5aa993b | 1827 | mm_ops.to_detach = mm_detach; |
c906108c | 1828 | mm_ops.to_require_detach = NULL; |
c5aa993b JM |
1829 | mm_ops.to_resume = mm_resume; |
1830 | mm_ops.to_wait = mm_wait; | |
c906108c | 1831 | mm_ops.to_post_wait = NULL; |
c5aa993b JM |
1832 | mm_ops.to_fetch_registers = mm_fetch_registers; |
1833 | mm_ops.to_store_registers = mm_store_registers; | |
1834 | mm_ops.to_prepare_to_store = mm_prepare_to_store; | |
1835 | mm_ops.to_xfer_memory = mm_xfer_inferior_memory; | |
1836 | mm_ops.to_files_info = mm_files_info; | |
1837 | mm_ops.to_insert_breakpoint = mm_insert_breakpoint; | |
1838 | mm_ops.to_remove_breakpoint = mm_remove_breakpoint; | |
1839 | mm_ops.to_terminal_init = 0; | |
1840 | mm_ops.to_terminal_inferior = 0; | |
1841 | mm_ops.to_terminal_ours_for_output = 0; | |
1842 | mm_ops.to_terminal_ours = 0; | |
1843 | mm_ops.to_terminal_info = 0; | |
1844 | mm_ops.to_kill = mm_kill; | |
1845 | mm_ops.to_load = mm_load; | |
1846 | mm_ops.to_lookup_symbol = 0; | |
1847 | mm_ops.to_create_inferior = mm_create_inferior; | |
c906108c SS |
1848 | mm_ops.to_post_startup_inferior = NULL; |
1849 | mm_ops.to_acknowledge_created_inferior = NULL; | |
1850 | mm_ops.to_clone_and_follow_inferior = NULL; | |
1851 | mm_ops.to_post_follow_inferior_by_clone = NULL; | |
1852 | mm_ops.to_insert_fork_catchpoint = NULL; | |
1853 | mm_ops.to_remove_fork_catchpoint = NULL; | |
1854 | mm_ops.to_insert_vfork_catchpoint = NULL; | |
1855 | mm_ops.to_remove_vfork_catchpoint = NULL; | |
1856 | mm_ops.to_has_forked = NULL; | |
1857 | mm_ops.to_has_vforked = NULL; | |
1858 | mm_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
c5aa993b | 1859 | mm_ops.to_post_follow_vfork = NULL; |
c906108c SS |
1860 | mm_ops.to_insert_exec_catchpoint = NULL; |
1861 | mm_ops.to_remove_exec_catchpoint = NULL; | |
1862 | mm_ops.to_has_execd = NULL; | |
1863 | mm_ops.to_reported_exec_events_per_exec_call = NULL; | |
1864 | mm_ops.to_has_exited = NULL; | |
c5aa993b JM |
1865 | mm_ops.to_mourn_inferior = mm_mourn; |
1866 | mm_ops.to_can_run = 0; | |
1867 | mm_ops.to_notice_signals = 0; | |
1868 | mm_ops.to_thread_alive = 0; | |
1869 | mm_ops.to_stop = 0; | |
c906108c SS |
1870 | mm_ops.to_pid_to_exec_file = NULL; |
1871 | mm_ops.to_core_file_to_sym_file = NULL; | |
c5aa993b JM |
1872 | mm_ops.to_stratum = process_stratum; |
1873 | mm_ops.DONT_USE = 0; | |
1874 | mm_ops.to_has_all_memory = 1; | |
1875 | mm_ops.to_has_memory = 1; | |
1876 | mm_ops.to_has_stack = 1; | |
1877 | mm_ops.to_has_registers = 1; | |
1878 | mm_ops.to_has_execution = 1; | |
1879 | mm_ops.to_sections = 0; | |
1880 | mm_ops.to_sections_end = 0; | |
1881 | mm_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
1882 | }; |
1883 | ||
1884 | void | |
c5aa993b | 1885 | _initialize_remote_mm () |
c906108c | 1886 | { |
c5aa993b | 1887 | init_mm_ops (); |
c906108c SS |
1888 | add_target (&mm_ops); |
1889 | } | |
1890 | ||
1891 | #ifdef NO_HIF_SUPPORT | |
c5aa993b JM |
1892 | service_HIF (msg) |
1893 | union msg_t *msg; | |
c906108c | 1894 | { |
c5aa993b | 1895 | return (0); /* Emulate a failure */ |
c906108c SS |
1896 | } |
1897 | #endif |