Commit | Line | Data |
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c906108c | 1 | /* Remote debugging interface for Am290*0 running MiniMON monitor, for GDB. |
b6ba6518 KB |
2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, |
3 | 2001 Free Software Foundation, Inc. | |
c906108c SS |
4 | Originally written by Daniel Mann at AMD. |
5 | ||
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
22 | |
23 | /* This is like remote.c but ecpects MiniMON to be running on the Am29000 | |
24 | target hardware. | |
c5aa993b JM |
25 | - David Wood (wood@lab.ultra.nyu.edu) at New York University adapted this |
26 | file to gdb 3.95. I was unable to get this working on sun3os4 | |
27 | with termio, only with sgtty. Because we are only attempting to | |
28 | use this module to debug our kernel, which is already loaded when | |
29 | gdb is started up, I did not code up the file downloading facilities. | |
30 | As a result this module has only the stubs to download files. | |
31 | You should get tagged at compile time if you need to make any | |
32 | changes/additions. */ | |
33 | ||
c906108c SS |
34 | #include "defs.h" |
35 | #include "inferior.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" | |
4e052eda | 45 | #include "regcache.h" |
c906108c SS |
46 | |
47 | /* Offset of member MEMBER in a struct of type TYPE. */ | |
48 | #define offsetof(TYPE, MEMBER) ((int) &((TYPE *)0)->MEMBER) | |
49 | ||
50 | #define DRAIN_INPUT() (msg_recv_serial((union msg_t*)0)) | |
51 | ||
c5aa993b | 52 | extern int stop_soon_quietly; /* for wait_for_inferior */ |
c906108c | 53 | |
c5aa993b | 54 | static void mm_resume (); |
c906108c SS |
55 | static void mm_fetch_registers (); |
56 | static int fetch_register (); | |
57 | static void mm_store_registers (); | |
58 | static int store_register (); | |
c5aa993b JM |
59 | static int regnum_to_srnum (); |
60 | static void mm_close (); | |
61 | static char *msg_str (); | |
62 | static char *error_msg_str (); | |
63 | static int expect_msg (); | |
64 | static void init_target_mm (); | |
65 | static int mm_memory_space (); | |
c906108c SS |
66 | |
67 | #define FREEZE_MODE (read_register(CPS_REGNUM) && 0x400) | |
68 | #define USE_SHADOW_PC ((processor_type == a29k_freeze_mode) && FREEZE_MODE) | |
69 | ||
70 | /* FIXME: Replace with `set remotedebug'. */ | |
71 | #define LLOG_FILE "minimon.log" | |
72 | #if defined (LOG_FILE) | |
73 | FILE *log_file; | |
74 | #endif | |
75 | ||
76 | /* | |
77 | * Size of message buffers. I couldn't get memory reads to work when | |
78 | * the byte_count was larger than 512 (it may be a baud rate problem). | |
79 | */ | |
c5aa993b | 80 | #define BUFER_SIZE 512 |
c906108c SS |
81 | /* |
82 | * Size of data area in message buffer on the TARGET (remote system). | |
83 | */ | |
84 | #define MAXDATA_T (target_config.max_msg_size - \ | |
85 | offsetof(struct write_r_msg_t,data[0])) | |
c5aa993b | 86 | /* |
c906108c SS |
87 | * Size of data area in message buffer on the HOST (gdb). |
88 | */ | |
89 | #define MAXDATA_H (BUFER_SIZE - offsetof(struct write_r_msg_t,data[0])) | |
90 | /* | |
91 | * Defined as the minimum size of data areas of the two message buffers | |
92 | */ | |
93 | #define MAXDATA (MAXDATA_H < MAXDATA_T ? MAXDATA_H : MAXDATA_T) | |
94 | ||
95 | static char out_buf[BUFER_SIZE]; | |
c5aa993b | 96 | static char in_buf[BUFER_SIZE]; |
c906108c | 97 | |
c5aa993b JM |
98 | int msg_recv_serial (); |
99 | int msg_send_serial (); | |
c906108c SS |
100 | |
101 | #define MAX_RETRIES 5000 | |
c5aa993b JM |
102 | extern struct target_ops mm_ops; /* Forward declaration */ |
103 | struct config_msg_t target_config; /* HIF needs this */ | |
104 | union msg_t *out_msg_buf = (union msg_t *) out_buf; | |
105 | union msg_t *in_msg_buf = (union msg_t *) in_buf; | |
c906108c SS |
106 | |
107 | static int timeout = 5; | |
108 | ||
109 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that | |
110 | mm_open knows that we don't have a file open when the program | |
111 | starts. */ | |
112 | int mm_desc = -1; | |
113 | ||
114 | /* stream which is fdopen'd from mm_desc. Only valid when | |
115 | mm_desc != -1. */ | |
116 | FILE *mm_stream; | |
117 | ||
118 | /* Called when SIGALRM signal sent due to alarm() timeout. */ | |
119 | #ifndef HAVE_TERMIO | |
120 | ||
121 | #ifndef __STDC__ | |
c5aa993b JM |
122 | #ifndef volatile |
123 | #define volatile | |
124 | /**/ | |
c906108c SS |
125 | # endif |
126 | #endif | |
127 | volatile int n_alarms; | |
128 | ||
129 | static void | |
fba45db2 | 130 | mm_timer (void) |
c906108c SS |
131 | { |
132 | #if 0 | |
133 | if (kiodebug) | |
134 | printf ("mm_timer called\n"); | |
135 | #endif | |
136 | n_alarms++; | |
137 | } | |
138 | #endif /* HAVE_TERMIO */ | |
139 | ||
140 | /* malloc'd name of the program on the remote system. */ | |
141 | static char *prog_name = NULL; | |
142 | ||
143 | ||
144 | /* Number of SIGTRAPs we need to simulate. That is, the next | |
145 | NEED_ARTIFICIAL_TRAP calls to mm_wait should just return | |
146 | SIGTRAP without actually waiting for anything. */ | |
147 | ||
148 | /**************************************************** REMOTE_CREATE_INFERIOR */ | |
149 | /* This is called not only when we first attach, but also when the | |
150 | user types "run" after having attached. */ | |
151 | static void | |
fba45db2 | 152 | mm_create_inferior (char *execfile, char *args, char **env) |
c906108c SS |
153 | { |
154 | #define MAX_TOKENS 25 | |
155 | #define BUFFER_SIZE 256 | |
c5aa993b JM |
156 | int token_count; |
157 | int result; | |
158 | char *token[MAX_TOKENS]; | |
159 | char cmd_line[BUFFER_SIZE]; | |
c906108c SS |
160 | |
161 | if (args && *args) | |
162 | error ("Can't pass arguments to remote mm process (yet)."); | |
163 | ||
164 | if (execfile == 0 /* || exec_bfd == 0 */ ) | |
165 | error ("No executable file specified"); | |
166 | ||
c5aa993b JM |
167 | if (!mm_stream) |
168 | { | |
169 | printf ("Minimon not open yet.\n"); | |
170 | return; | |
171 | } | |
c906108c SS |
172 | |
173 | /* On ultra3 (NYU) we assume the kernel is already running so there is | |
174 | no file to download. | |
175 | FIXME: Fixed required here -> load your program, possibly with mm_load(). | |
c5aa993b | 176 | */ |
c906108c SS |
177 | printf_filtered ("\n\ |
178 | Assuming you are at NYU debuging a kernel, i.e., no need to download.\n\n"); | |
179 | ||
180 | /* We will get a task spawn event immediately. */ | |
181 | init_wait_for_inferior (); | |
182 | clear_proceed_status (); | |
183 | stop_soon_quietly = 1; | |
184 | proceed (-1, TARGET_SIGNAL_DEFAULT, 0); | |
185 | normal_stop (); | |
186 | } | |
187 | /**************************************************** REMOTE_MOURN_INFERIOR */ | |
188 | static void | |
fba45db2 | 189 | mm_mourn (void) |
c906108c | 190 | { |
c5aa993b JM |
191 | pop_target (); /* Pop back to no-child state */ |
192 | generic_mourn_inferior (); | |
c906108c SS |
193 | } |
194 | ||
195 | /********************************************************************** damn_b | |
196 | */ | |
197 | /* Translate baud rates from integers to damn B_codes. Unix should | |
198 | have outgrown this crap years ago, but even POSIX wouldn't buck it. */ | |
199 | ||
200 | #ifndef B19200 | |
201 | #define B19200 EXTA | |
202 | #endif | |
203 | #ifndef B38400 | |
204 | #define B38400 EXTB | |
205 | #endif | |
206 | ||
c5aa993b JM |
207 | static struct |
208 | { | |
209 | int rate, damn_b; | |
210 | } | |
211 | baudtab[] = | |
212 | { | |
213 | { | |
214 | 0, B0 | |
215 | } | |
216 | , | |
217 | { | |
218 | 50, B50 | |
219 | } | |
220 | , | |
221 | { | |
222 | 75, B75 | |
223 | } | |
224 | , | |
225 | { | |
226 | 110, B110 | |
227 | } | |
228 | , | |
229 | { | |
230 | 134, B134 | |
231 | } | |
232 | , | |
233 | { | |
234 | 150, B150 | |
235 | } | |
236 | , | |
237 | { | |
238 | 200, B200 | |
239 | } | |
240 | , | |
241 | { | |
242 | 300, B300 | |
243 | } | |
244 | , | |
245 | { | |
246 | 600, B600 | |
247 | } | |
248 | , | |
249 | { | |
250 | 1200, B1200 | |
251 | } | |
252 | , | |
253 | { | |
254 | 1800, B1800 | |
255 | } | |
256 | , | |
257 | { | |
258 | 2400, B2400 | |
259 | } | |
260 | , | |
261 | { | |
262 | 4800, B4800 | |
263 | } | |
264 | , | |
265 | { | |
266 | 9600, B9600 | |
267 | } | |
268 | , | |
269 | { | |
270 | 19200, B19200 | |
271 | } | |
272 | , | |
273 | { | |
274 | 38400, B38400 | |
275 | } | |
276 | , | |
277 | { | |
278 | -1, -1 | |
279 | } | |
280 | , | |
c906108c SS |
281 | }; |
282 | ||
c5aa993b | 283 | static int |
fba45db2 | 284 | damn_b (int rate) |
c906108c SS |
285 | { |
286 | int i; | |
287 | ||
288 | for (i = 0; baudtab[i].rate != -1; i++) | |
c5aa993b JM |
289 | if (rate == baudtab[i].rate) |
290 | return baudtab[i].damn_b; | |
291 | return B38400; /* Random */ | |
c906108c SS |
292 | } |
293 | ||
294 | ||
295 | /***************************************************************** REMOTE_OPEN | |
296 | ** Open a connection to remote minimon. | |
297 | NAME is the filename used for communication, then a space, | |
298 | then the baud rate. | |
299 | 'target adapt /dev/ttya 9600 [prognam]' for example. | |
300 | */ | |
301 | ||
302 | static char *dev_name; | |
303 | int baudrate = 9600; | |
304 | static void | |
fba45db2 | 305 | mm_open (char *name, int from_tty) |
c906108c SS |
306 | { |
307 | TERMINAL sg; | |
308 | unsigned int prl; | |
309 | char *p; | |
310 | ||
311 | /* Find the first whitespace character, it separates dev_name from | |
312 | prog_name. */ | |
313 | for (p = name; | |
314 | p && *p && !isspace (*p); p++) | |
315 | ; | |
316 | if (p == 0 || *p == '\0') | |
c5aa993b | 317 | erroid: |
c906108c | 318 | error ("Usage : <command> <serial-device> <baud-rate> [progname]"); |
c5aa993b | 319 | dev_name = (char *) xmalloc (p - name + 1); |
c906108c SS |
320 | strncpy (dev_name, name, p - name); |
321 | dev_name[p - name] = '\0'; | |
322 | ||
323 | /* Skip over the whitespace after dev_name */ | |
324 | for (; isspace (*p); p++) | |
c5aa993b JM |
325 | /*EMPTY */ ; |
326 | ||
c906108c SS |
327 | if (1 != sscanf (p, "%d ", &baudrate)) |
328 | goto erroid; | |
329 | ||
330 | /* Skip the number and then the spaces */ | |
331 | for (; isdigit (*p); p++) | |
c5aa993b | 332 | /*EMPTY */ ; |
c906108c | 333 | for (; isspace (*p); p++) |
c5aa993b JM |
334 | /*EMPTY */ ; |
335 | ||
c906108c | 336 | if (prog_name != NULL) |
b8c9b27d | 337 | xfree (prog_name); |
c906108c SS |
338 | prog_name = savestring (p, strlen (p)); |
339 | ||
340 | ||
341 | if (mm_desc >= 0) | |
342 | close (mm_desc); | |
343 | ||
344 | mm_desc = open (dev_name, O_RDWR); | |
345 | if (mm_desc < 0) | |
346 | perror_with_name (dev_name); | |
347 | ioctl (mm_desc, TIOCGETP, &sg); | |
348 | #ifdef HAVE_TERMIO | |
349 | sg.c_cc[VMIN] = 0; /* read with timeout. */ | |
350 | sg.c_cc[VTIME] = timeout * 10; | |
351 | sg.c_lflag &= ~(ICANON | ECHO); | |
352 | sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate); | |
353 | #else | |
354 | sg.sg_ispeed = damn_b (baudrate); | |
355 | sg.sg_ospeed = damn_b (baudrate); | |
356 | sg.sg_flags |= RAW; | |
357 | sg.sg_flags |= ANYP; | |
358 | sg.sg_flags &= ~ECHO; | |
359 | #endif | |
360 | ||
361 | ||
362 | ioctl (mm_desc, TIOCSETP, &sg); | |
363 | mm_stream = fdopen (mm_desc, "r+"); | |
364 | ||
365 | push_target (&mm_ops); | |
366 | ||
367 | #ifndef HAVE_TERMIO | |
368 | #ifndef NO_SIGINTERRUPT | |
369 | /* Cause SIGALRM's to make reads fail with EINTR instead of resuming | |
370 | the read. */ | |
371 | if (siginterrupt (SIGALRM, 1) != 0) | |
372 | perror ("mm_open: error in siginterrupt"); | |
373 | #endif | |
374 | ||
375 | /* Set up read timeout timer. */ | |
376 | if ((void (*)) signal (SIGALRM, mm_timer) == (void (*)) -1) | |
377 | perror ("mm_open: error in signal"); | |
378 | #endif | |
379 | ||
380 | #if defined (LOG_FILE) | |
381 | log_file = fopen (LOG_FILE, "w"); | |
382 | if (log_file == NULL) | |
383 | perror_with_name (LOG_FILE); | |
384 | #endif | |
c5aa993b JM |
385 | /* |
386 | ** Initialize target configuration structure (global) | |
c906108c | 387 | */ |
c5aa993b JM |
388 | DRAIN_INPUT (); |
389 | out_msg_buf->config_req_msg.code = CONFIG_REQ; | |
390 | out_msg_buf->config_req_msg.length = 4 * 0; | |
391 | msg_send_serial (out_msg_buf); /* send config request message */ | |
c906108c | 392 | |
c5aa993b | 393 | expect_msg (CONFIG, in_msg_buf, 1); |
c906108c SS |
394 | |
395 | a29k_get_processor_type (); | |
396 | ||
397 | /* Print out some stuff, letting the user now what's going on */ | |
c5aa993b JM |
398 | printf_filtered ("Connected to MiniMon via %s.\n", dev_name); |
399 | /* FIXME: can this restriction be removed? */ | |
400 | printf_filtered ("Remote debugging using virtual addresses works only\n"); | |
401 | printf_filtered ("\twhen virtual addresses map 1:1 to physical addresses.\n") | |
402 | ; | |
403 | if (processor_type != a29k_freeze_mode) | |
404 | { | |
405 | fprintf_filtered (gdb_stderr, | |
406 | "Freeze-mode debugging not available, and can only be done on an A29050.\n"); | |
407 | } | |
c906108c | 408 | |
c5aa993b JM |
409 | target_config.code = CONFIG; |
410 | target_config.length = 0; | |
411 | target_config.processor_id = in_msg_buf->config_msg.processor_id; | |
412 | target_config.version = in_msg_buf->config_msg.version; | |
413 | target_config.I_mem_start = in_msg_buf->config_msg.I_mem_start; | |
414 | target_config.I_mem_size = in_msg_buf->config_msg.I_mem_size; | |
415 | target_config.D_mem_start = in_msg_buf->config_msg.D_mem_start; | |
416 | target_config.D_mem_size = in_msg_buf->config_msg.D_mem_size; | |
417 | target_config.ROM_start = in_msg_buf->config_msg.ROM_start; | |
418 | target_config.ROM_size = in_msg_buf->config_msg.ROM_size; | |
419 | target_config.max_msg_size = in_msg_buf->config_msg.max_msg_size; | |
420 | target_config.max_bkpts = in_msg_buf->config_msg.max_bkpts; | |
421 | target_config.coprocessor = in_msg_buf->config_msg.coprocessor; | |
422 | target_config.reserved = in_msg_buf->config_msg.reserved; | |
423 | if (from_tty) | |
424 | { | |
425 | printf ("Connected to MiniMON :\n"); | |
426 | printf (" Debugcore version %d.%d\n", | |
427 | 0x0f & (target_config.version >> 4), | |
428 | 0x0f & (target_config.version)); | |
429 | printf (" Configuration version %d.%d\n", | |
430 | 0x0f & (target_config.version >> 12), | |
431 | 0x0f & (target_config.version >> 8)); | |
432 | printf (" Message system version %d.%d\n", | |
433 | 0x0f & (target_config.version >> 20), | |
434 | 0x0f & (target_config.version >> 16)); | |
435 | printf (" Communication driver version %d.%d\n", | |
436 | 0x0f & (target_config.version >> 28), | |
437 | 0x0f & (target_config.version >> 24)); | |
438 | } | |
c906108c SS |
439 | |
440 | /* Leave the target running... | |
441 | * The above message stopped the target in the dbg core (MiniMon), | |
442 | * so restart the target out of MiniMon, | |
443 | */ | |
444 | out_msg_buf->go_msg.code = GO; | |
445 | out_msg_buf->go_msg.length = 0; | |
c5aa993b | 446 | msg_send_serial (out_msg_buf); |
c906108c SS |
447 | /* No message to expect after a GO */ |
448 | } | |
449 | ||
450 | /**************************************************************** REMOTE_CLOSE | |
451 | ** Close the open connection to the minimon debugger. | |
452 | Use this when you want to detach and do something else | |
453 | with your gdb. */ | |
454 | static void | |
fba45db2 KB |
455 | mm_close ( /*FIXME: how is quitting used */ |
456 | int quitting) | |
c906108c SS |
457 | { |
458 | if (mm_desc < 0) | |
459 | error ("Can't close remote connection: not debugging remotely."); | |
460 | ||
461 | /* We should never get here if there isn't something valid in | |
462 | mm_desc and mm_stream. | |
463 | ||
464 | Due to a bug in Unix, fclose closes not only the stdio stream, | |
465 | but also the file descriptor. So we don't actually close | |
466 | mm_desc. */ | |
c5aa993b JM |
467 | DRAIN_INPUT (); |
468 | fclose (mm_stream); | |
c906108c SS |
469 | /* close (mm_desc); */ |
470 | ||
471 | /* Do not try to close mm_desc again, later in the program. */ | |
472 | mm_stream = NULL; | |
473 | mm_desc = -1; | |
474 | ||
475 | #if defined (LOG_FILE) | |
476 | if (ferror (log_file)) | |
477 | printf ("Error writing log file.\n"); | |
478 | if (fclose (log_file) != 0) | |
479 | printf ("Error closing log file.\n"); | |
480 | #endif | |
481 | ||
482 | printf ("Ending remote debugging\n"); | |
c5aa993b | 483 | } |
c906108c SS |
484 | |
485 | /************************************************************* REMOTE_ATACH */ | |
486 | /* Attach to a program that is already loaded and running | |
487 | * Upon exiting the process's execution is stopped. | |
488 | */ | |
489 | static void | |
fba45db2 | 490 | mm_attach (char *args, int from_tty) |
c906108c SS |
491 | { |
492 | ||
493 | if (!mm_stream) | |
c5aa993b JM |
494 | error ("MiniMon not opened yet, use the 'target minimon' command.\n"); |
495 | ||
c906108c | 496 | if (from_tty) |
c5aa993b | 497 | printf ("Attaching to remote program %s...\n", prog_name); |
c906108c SS |
498 | |
499 | /* Make sure the target is currently running, it is supposed to be. */ | |
500 | /* FIXME: is it ok to send MiniMon a BREAK if it is already stopped in | |
c5aa993b | 501 | * the dbg core. If so, we don't need to send this GO. |
c906108c SS |
502 | */ |
503 | out_msg_buf->go_msg.code = GO; | |
504 | out_msg_buf->go_msg.length = 0; | |
c5aa993b JM |
505 | msg_send_serial (out_msg_buf); |
506 | sleep (2); /* At the worst it will stop, receive a message, continue */ | |
507 | ||
508 | /* Send the mm a break. */ | |
c906108c SS |
509 | out_msg_buf->break_msg.code = BREAK; |
510 | out_msg_buf->break_msg.length = 0; | |
c5aa993b | 511 | msg_send_serial (out_msg_buf); |
c906108c SS |
512 | } |
513 | /********************************************************** REMOTE_DETACH */ | |
514 | /* Terminate the open connection to the remote debugger. | |
515 | Use this when you want to detach and do something else | |
516 | with your gdb. Leave remote process running (with no breakpoints set). */ | |
517 | static void | |
fba45db2 | 518 | mm_detach (char *args, int from_tty) |
c906108c | 519 | { |
c5aa993b | 520 | remove_breakpoints (); /* Just in case there were any left in */ |
c906108c SS |
521 | out_msg_buf->go_msg.code = GO; |
522 | out_msg_buf->go_msg.length = 0; | |
c5aa993b JM |
523 | msg_send_serial (out_msg_buf); |
524 | pop_target (); /* calls mm_close to do the real work */ | |
c906108c SS |
525 | } |
526 | ||
527 | ||
528 | /*************************************************************** REMOTE_RESUME | |
529 | ** Tell the remote machine to resume. */ | |
530 | ||
531 | static void | |
fba45db2 | 532 | mm_resume (int pid, int step, enum target_signal sig) |
c906108c SS |
533 | { |
534 | if (sig != TARGET_SIGNAL_0) | |
535 | warning ("Can't send signals to a remote MiniMon system."); | |
536 | ||
c5aa993b JM |
537 | if (step) |
538 | { | |
539 | out_msg_buf->step_msg.code = STEP; | |
540 | out_msg_buf->step_msg.length = 1 * 4; | |
541 | out_msg_buf->step_msg.count = 1; /* step 1 instruction */ | |
542 | msg_send_serial (out_msg_buf); | |
543 | } | |
544 | else | |
545 | { | |
546 | out_msg_buf->go_msg.code = GO; | |
c906108c | 547 | out_msg_buf->go_msg.length = 0; |
c5aa993b JM |
548 | msg_send_serial (out_msg_buf); |
549 | } | |
c906108c SS |
550 | } |
551 | ||
552 | /***************************************************************** REMOTE_WAIT | |
553 | ** Wait until the remote machine stops, then return, | |
554 | storing status in STATUS just as `wait' would. */ | |
555 | ||
556 | static int | |
fba45db2 | 557 | mm_wait (struct target_waitstatus *status) |
c906108c SS |
558 | { |
559 | int i, result; | |
560 | int old_timeout = timeout; | |
561 | int old_immediate_quit = immediate_quit; | |
562 | ||
563 | status->kind = TARGET_WAITKIND_EXITED; | |
564 | status->value.integer = 0; | |
565 | ||
566 | /* wait for message to arrive. It should be: | |
c5aa993b JM |
567 | - A HIF service request. |
568 | - A HIF exit service request. | |
569 | - A CHANNEL0_ACK. | |
570 | - A CHANNEL1 request. | |
571 | - a debugcore HALT message. | |
572 | HIF services must be responded too, and while-looping continued. | |
573 | If the target stops executing, mm_wait() should return. | |
574 | */ | |
575 | timeout = 0; /* Wait indefinetly for a message */ | |
576 | immediate_quit = 1; /* Helps ability to QUIT */ | |
577 | while (1) | |
c906108c | 578 | { |
c5aa993b JM |
579 | while (msg_recv_serial (in_msg_buf)) |
580 | { | |
581 | QUIT; /* Let user quit if they want */ | |
582 | } | |
583 | switch (in_msg_buf->halt_msg.code) | |
584 | { | |
585 | case HIF_CALL: | |
586 | i = in_msg_buf->hif_call_rtn_msg.service_number; | |
587 | result = service_HIF (in_msg_buf); | |
588 | if (i == 1) /* EXIT */ | |
c906108c | 589 | goto exit; |
c5aa993b JM |
590 | if (result) |
591 | printf ("Warning: failure during HIF service %d\n", i); | |
592 | break; | |
593 | case CHANNEL0_ACK: | |
594 | service_HIF (in_msg_buf); | |
595 | break; | |
596 | case CHANNEL1: | |
597 | i = in_msg_buf->channel1_msg.length; | |
598 | in_msg_buf->channel1_msg.data[i] = '\0'; | |
599 | printf ("%s", in_msg_buf->channel1_msg.data); | |
600 | gdb_flush (gdb_stdout); | |
601 | /* Send CHANNEL1_ACK message */ | |
602 | out_msg_buf->channel1_ack_msg.code = CHANNEL1_ACK; | |
603 | out_msg_buf->channel1_ack_msg.length = 0; | |
604 | result = msg_send_serial (out_msg_buf); | |
605 | break; | |
606 | case HALT: | |
607 | goto halted; | |
608 | default: | |
609 | goto halted; | |
610 | } | |
c906108c | 611 | } |
c906108c SS |
612 | halted: |
613 | /* FIXME, these printfs should not be here. This is a source level | |
614 | debugger, guys! */ | |
c5aa993b | 615 | if (in_msg_buf->halt_msg.trap_number == 0) |
c906108c | 616 | { |
c5aa993b JM |
617 | printf ("Am290*0 received vector number %d (break point)\n", |
618 | in_msg_buf->halt_msg.trap_number); | |
619 | status->kind = TARGET_WAITKIND_STOPPED; | |
620 | status->value.sig = TARGET_SIGNAL_TRAP; | |
621 | } | |
622 | else if (in_msg_buf->halt_msg.trap_number == 1) | |
623 | { | |
624 | printf ("Am290*0 received vector number %d\n", | |
625 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
626 | status->kind = TARGET_WAITKIND_STOPPED; |
627 | status->value.sig = TARGET_SIGNAL_BUS; | |
628 | } | |
c5aa993b JM |
629 | else if (in_msg_buf->halt_msg.trap_number == 3 |
630 | || in_msg_buf->halt_msg.trap_number == 4) | |
631 | { | |
632 | printf ("Am290*0 received vector number %d\n", | |
633 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
634 | status->kind = TARGET_WAITKIND_STOPPED; |
635 | status->value.sig = TARGET_SIGNAL_FPE; | |
c5aa993b JM |
636 | } |
637 | else if (in_msg_buf->halt_msg.trap_number == 5) | |
638 | { | |
639 | printf ("Am290*0 received vector number %d\n", | |
640 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
641 | status->kind = TARGET_WAITKIND_STOPPED; |
642 | status->value.sig = TARGET_SIGNAL_ILL; | |
c5aa993b | 643 | } |
c906108c | 644 | else if (in_msg_buf->halt_msg.trap_number >= 6 |
c5aa993b JM |
645 | && in_msg_buf->halt_msg.trap_number <= 11) |
646 | { | |
647 | printf ("Am290*0 received vector number %d\n", | |
648 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
649 | status->kind = TARGET_WAITKIND_STOPPED; |
650 | status->value.sig = TARGET_SIGNAL_SEGV; | |
c5aa993b JM |
651 | } |
652 | else if (in_msg_buf->halt_msg.trap_number == 12 | |
653 | || in_msg_buf->halt_msg.trap_number == 13) | |
654 | { | |
655 | printf ("Am290*0 received vector number %d\n", | |
656 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
657 | status->kind = TARGET_WAITKIND_STOPPED; |
658 | status->value.sig = TARGET_SIGNAL_ILL; | |
c5aa993b JM |
659 | } |
660 | else if (in_msg_buf->halt_msg.trap_number == 14) | |
661 | { | |
662 | printf ("Am290*0 received vector number %d\n", | |
663 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
664 | status->kind = TARGET_WAITKIND_STOPPED; |
665 | status->value.sig = TARGET_SIGNAL_ALRM; | |
c5aa993b JM |
666 | } |
667 | else if (in_msg_buf->halt_msg.trap_number == 15) | |
c906108c SS |
668 | { |
669 | status->kind = TARGET_WAITKIND_STOPPED; | |
670 | status->value.sig = TARGET_SIGNAL_TRAP; | |
671 | } | |
672 | else if (in_msg_buf->halt_msg.trap_number >= 16 | |
c5aa993b JM |
673 | && in_msg_buf->halt_msg.trap_number <= 21) |
674 | { | |
675 | printf ("Am290*0 received vector number %d\n", | |
676 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
677 | status->kind = TARGET_WAITKIND_STOPPED; |
678 | status->value.sig = TARGET_SIGNAL_INT; | |
c5aa993b JM |
679 | } |
680 | else if (in_msg_buf->halt_msg.trap_number == 22) | |
681 | { | |
682 | printf ("Am290*0 received vector number %d\n", | |
683 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
684 | status->kind = TARGET_WAITKIND_STOPPED; |
685 | status->value.sig = TARGET_SIGNAL_ILL; | |
c5aa993b JM |
686 | } /* BREAK message was sent */ |
687 | else if (in_msg_buf->halt_msg.trap_number == 75) | |
c906108c SS |
688 | { |
689 | status->kind = TARGET_WAITKIND_STOPPED; | |
690 | status->value.sig = TARGET_SIGNAL_TRAP; | |
691 | } | |
692 | else | |
c5aa993b | 693 | exit: |
c906108c SS |
694 | { |
695 | status->kind = TARGET_WAITKIND_EXITED; | |
696 | status->value.integer = 0; | |
697 | } | |
698 | ||
699 | timeout = old_timeout; /* Restore original timeout value */ | |
700 | immediate_quit = old_immediate_quit; | |
701 | return 0; | |
702 | } | |
703 | ||
704 | /******************************************************* REMOTE_FETCH_REGISTERS | |
705 | * Read a remote register 'regno'. | |
706 | * If regno==-1 then read all the registers. | |
707 | */ | |
c5aa993b | 708 | static void |
fba45db2 | 709 | mm_fetch_registers (int regno) |
c906108c SS |
710 | { |
711 | INT32 *data_p; | |
712 | ||
c5aa993b JM |
713 | if (regno >= 0) |
714 | { | |
715 | fetch_register (regno); | |
716 | return; | |
717 | } | |
c906108c SS |
718 | |
719 | /* Gr1/rsp */ | |
c5aa993b | 720 | out_msg_buf->read_req_msg.byte_count = 4 * 1; |
c906108c SS |
721 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; |
722 | out_msg_buf->read_req_msg.address = 1; | |
c5aa993b JM |
723 | msg_send_serial (out_msg_buf); |
724 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c | 725 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
c5aa993b | 726 | supply_register (GR1_REGNUM, data_p); |
c906108c SS |
727 | |
728 | #if defined(GR64_REGNUM) /* Read gr64-127 */ | |
c5aa993b JM |
729 | /* Global Registers gr64-gr95 */ |
730 | out_msg_buf->read_req_msg.code = READ_REQ; | |
731 | out_msg_buf->read_req_msg.length = 4 * 3; | |
732 | out_msg_buf->read_req_msg.byte_count = 4 * 32; | |
c906108c SS |
733 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; |
734 | out_msg_buf->read_req_msg.address = 64; | |
c5aa993b JM |
735 | msg_send_serial (out_msg_buf); |
736 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
737 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
738 | ||
c5aa993b JM |
739 | for (regno = GR64_REGNUM; regno < GR64_REGNUM + 32; regno++) |
740 | { | |
c906108c | 741 | supply_register (regno, data_p++); |
c5aa993b JM |
742 | } |
743 | #endif /* GR64_REGNUM */ | |
c906108c | 744 | |
c5aa993b JM |
745 | /* Global Registers gr96-gr127 */ |
746 | out_msg_buf->read_req_msg.code = READ_REQ; | |
747 | out_msg_buf->read_req_msg.length = 4 * 3; | |
c906108c SS |
748 | out_msg_buf->read_req_msg.byte_count = 4 * 32; |
749 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
750 | out_msg_buf->read_req_msg.address = 96; | |
c5aa993b JM |
751 | msg_send_serial (out_msg_buf); |
752 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
753 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
754 | ||
c5aa993b JM |
755 | for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) |
756 | { | |
c906108c | 757 | supply_register (regno, data_p++); |
c5aa993b | 758 | } |
c906108c | 759 | |
c5aa993b | 760 | /* Local Registers */ |
c906108c SS |
761 | out_msg_buf->read_req_msg.byte_count = 4 * (128); |
762 | out_msg_buf->read_req_msg.memory_space = LOCAL_REG; | |
763 | out_msg_buf->read_req_msg.address = 0; | |
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 = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) |
769 | { | |
c906108c | 770 | supply_register (regno, data_p++); |
c5aa993b | 771 | } |
c906108c | 772 | |
c5aa993b JM |
773 | /* Protected Special Registers */ |
774 | out_msg_buf->read_req_msg.byte_count = 4 * 15; | |
c906108c SS |
775 | out_msg_buf->read_req_msg.memory_space = SPECIAL_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 = 0; regno <= 14; regno++) |
782 | { | |
783 | supply_register (SR_REGNUM (regno), data_p++); | |
784 | } | |
785 | if (USE_SHADOW_PC) | |
786 | { /* Let regno_to_srnum() handle the register number */ | |
787 | fetch_register (NPC_REGNUM); | |
788 | fetch_register (PC_REGNUM); | |
789 | fetch_register (PC2_REGNUM); | |
790 | } | |
c906108c | 791 | |
c5aa993b JM |
792 | /* Unprotected Special Registers */ |
793 | out_msg_buf->read_req_msg.byte_count = 4 * 8; | |
c906108c SS |
794 | out_msg_buf->read_req_msg.memory_space = SPECIAL_REG; |
795 | out_msg_buf->read_req_msg.address = 128; | |
c5aa993b JM |
796 | msg_send_serial (out_msg_buf); |
797 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
798 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
799 | ||
c5aa993b JM |
800 | for (regno = 128; regno <= 135; regno++) |
801 | { | |
802 | supply_register (SR_REGNUM (regno), data_p++); | |
803 | } | |
c906108c SS |
804 | |
805 | /* There doesn't seem to be any way to get these. */ | |
806 | { | |
807 | int val = -1; | |
808 | supply_register (FPE_REGNUM, &val); | |
809 | supply_register (INTE_REGNUM, &val); | |
810 | supply_register (FPS_REGNUM, &val); | |
811 | supply_register (EXO_REGNUM, &val); | |
812 | } | |
813 | } | |
814 | ||
815 | ||
816 | /****************************************************** REMOTE_STORE_REGISTERS | |
817 | * Store register regno into the target. | |
818 | * If regno==-1 then store all the registers. | |
819 | * Result is 0 for success, -1 for failure. | |
820 | */ | |
821 | ||
822 | static void | |
fba45db2 | 823 | mm_store_registers (int regno) |
c906108c SS |
824 | { |
825 | int result; | |
c5aa993b JM |
826 | |
827 | if (regno >= 0) | |
828 | { | |
829 | store_register (regno); | |
830 | return; | |
831 | } | |
c906108c SS |
832 | |
833 | result = 0; | |
834 | ||
c5aa993b | 835 | out_msg_buf->write_r_msg.code = WRITE_REQ; |
c906108c SS |
836 | |
837 | /* Gr1/rsp */ | |
c5aa993b JM |
838 | out_msg_buf->write_r_msg.byte_count = 4 * 1; |
839 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c SS |
840 | out_msg_buf->write_r_msg.memory_space = GLOBAL_REG; |
841 | out_msg_buf->write_r_msg.address = 1; | |
842 | out_msg_buf->write_r_msg.data[0] = read_register (GR1_REGNUM); | |
843 | ||
c5aa993b JM |
844 | msg_send_serial (out_msg_buf); |
845 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
846 | { | |
847 | result = -1; | |
848 | } | |
c906108c SS |
849 | |
850 | #if defined(GR64_REGNUM) | |
851 | /* Global registers gr64-gr95 */ | |
c5aa993b JM |
852 | out_msg_buf->write_r_msg.byte_count = 4 * (32); |
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.address = 64; |
855 | ||
c5aa993b | 856 | for (regno = GR64_REGNUM; regno < GR64_REGNUM + 32; regno++) |
c906108c | 857 | { |
c5aa993b | 858 | out_msg_buf->write_r_msg.data[regno - GR64_REGNUM] = read_register (regno); |
c906108c | 859 | } |
c5aa993b JM |
860 | msg_send_serial (out_msg_buf); |
861 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
862 | { | |
863 | result = -1; | |
864 | } | |
865 | #endif /* GR64_REGNUM */ | |
c906108c SS |
866 | |
867 | /* Global registers gr96-gr127 */ | |
c5aa993b JM |
868 | out_msg_buf->write_r_msg.byte_count = 4 * (32); |
869 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 870 | out_msg_buf->write_r_msg.address = 96; |
c5aa993b | 871 | for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) |
c906108c | 872 | { |
c5aa993b JM |
873 | out_msg_buf->write_r_msg.data[regno - GR96_REGNUM] = read_register (regno); |
874 | } | |
875 | msg_send_serial (out_msg_buf); | |
876 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
877 | { | |
878 | result = -1; | |
c906108c | 879 | } |
c906108c SS |
880 | |
881 | /* Local Registers */ | |
882 | out_msg_buf->write_r_msg.memory_space = LOCAL_REG; | |
c5aa993b JM |
883 | out_msg_buf->write_r_msg.byte_count = 4 * 128; |
884 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c SS |
885 | out_msg_buf->write_r_msg.address = 0; |
886 | ||
c5aa993b | 887 | for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) |
c906108c | 888 | { |
c5aa993b JM |
889 | out_msg_buf->write_r_msg.data[regno - LR0_REGNUM] = read_register (regno); |
890 | } | |
891 | msg_send_serial (out_msg_buf); | |
892 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
893 | { | |
894 | result = -1; | |
c906108c | 895 | } |
c906108c | 896 | |
c5aa993b | 897 | /* Protected Special Registers */ |
c906108c SS |
898 | /* VAB through TMR */ |
899 | out_msg_buf->write_r_msg.memory_space = SPECIAL_REG; | |
c5aa993b JM |
900 | out_msg_buf->write_r_msg.byte_count = 4 * 10; |
901 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 902 | out_msg_buf->write_r_msg.address = 0; |
c5aa993b JM |
903 | for (regno = 0; regno <= 9; regno++) /* VAB through TMR */ |
904 | out_msg_buf->write_r_msg.data[regno] = read_register (SR_REGNUM (regno)); | |
905 | msg_send_serial (out_msg_buf); | |
906 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
907 | { | |
908 | result = -1; | |
909 | } | |
c906108c SS |
910 | |
911 | /* PC0, PC1, PC2 possibly as shadow registers */ | |
c5aa993b JM |
912 | out_msg_buf->write_r_msg.byte_count = 4 * 3; |
913 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
914 | for (regno = 10; regno <= 12; regno++) /* LRU and MMU */ | |
915 | out_msg_buf->write_r_msg.data[regno - 10] = read_register (SR_REGNUM (regno)); | |
916 | if (USE_SHADOW_PC) | |
c906108c | 917 | out_msg_buf->write_r_msg.address = 20; /* SPC0 */ |
c5aa993b | 918 | else |
c906108c | 919 | out_msg_buf->write_r_msg.address = 10; /* PC0 */ |
c5aa993b JM |
920 | msg_send_serial (out_msg_buf); |
921 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
922 | { | |
923 | result = -1; | |
924 | } | |
c906108c SS |
925 | |
926 | /* LRU and MMU */ | |
c5aa993b JM |
927 | out_msg_buf->write_r_msg.byte_count = 4 * 2; |
928 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 929 | out_msg_buf->write_r_msg.address = 13; |
c5aa993b JM |
930 | for (regno = 13; regno <= 14; regno++) /* LRU and MMU */ |
931 | out_msg_buf->write_r_msg.data[regno - 13] = read_register (SR_REGNUM (regno)); | |
932 | msg_send_serial (out_msg_buf); | |
933 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
934 | { | |
935 | result = -1; | |
936 | } | |
c906108c | 937 | |
c5aa993b JM |
938 | /* Unprotected Special Registers */ |
939 | out_msg_buf->write_r_msg.byte_count = 4 * 8; | |
940 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 941 | out_msg_buf->write_r_msg.address = 128; |
c5aa993b JM |
942 | for (regno = 128; regno <= 135; regno++) |
943 | out_msg_buf->write_r_msg.data[regno - 128] = read_register (SR_REGNUM (regno)); | |
944 | msg_send_serial (out_msg_buf); | |
945 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
946 | { | |
947 | result = -1; | |
948 | } | |
949 | ||
c906108c SS |
950 | registers_changed (); |
951 | } | |
952 | ||
953 | /*************************************************** REMOTE_PREPARE_TO_STORE */ | |
954 | /* Get ready to modify the registers array. On machines which store | |
955 | individual registers, this doesn't need to do anything. On machines | |
956 | which store all the registers in one fell swoop, this makes sure | |
957 | that registers contains all the registers from the program being | |
958 | debugged. */ | |
959 | ||
960 | static void | |
fba45db2 | 961 | mm_prepare_to_store (void) |
c906108c SS |
962 | { |
963 | /* Do nothing, since we can store individual regs */ | |
964 | } | |
965 | ||
966 | /******************************************************* REMOTE_XFER_MEMORY */ | |
967 | static CORE_ADDR | |
fba45db2 | 968 | translate_addr (CORE_ADDR addr) |
c906108c SS |
969 | { |
970 | #if defined(KERNEL_DEBUGGING) | |
c5aa993b JM |
971 | /* Check for a virtual address in the kernel */ |
972 | /* Assume physical address of ublock is in paddr_u register */ | |
973 | /* FIXME: doesn't work for user virtual addresses */ | |
974 | if (addr >= UVADDR) | |
975 | { | |
976 | /* PADDR_U register holds the physical address of the ublock */ | |
977 | CORE_ADDR i = (CORE_ADDR) read_register (PADDR_U_REGNUM); | |
978 | return (i + addr - (CORE_ADDR) UVADDR); | |
979 | } | |
980 | else | |
981 | { | |
982 | return (addr); | |
983 | } | |
c906108c | 984 | #else |
c5aa993b | 985 | return (addr); |
c906108c SS |
986 | #endif |
987 | } | |
988 | ||
989 | /******************************************************* REMOTE_FILES_INFO */ | |
990 | static void | |
fba45db2 | 991 | mm_files_info (void) |
c906108c SS |
992 | { |
993 | printf ("\tAttached to %s at %d baud and running program %s.\n", | |
c5aa993b | 994 | dev_name, baudrate, prog_name); |
c906108c SS |
995 | } |
996 | ||
997 | /************************************************* REMOTE_INSERT_BREAKPOINT */ | |
998 | static int | |
fba45db2 | 999 | mm_insert_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c SS |
1000 | { |
1001 | out_msg_buf->bkpt_set_msg.code = BKPT_SET; | |
c5aa993b | 1002 | out_msg_buf->bkpt_set_msg.length = 4 * 4; |
c906108c SS |
1003 | out_msg_buf->bkpt_set_msg.memory_space = I_MEM; |
1004 | out_msg_buf->bkpt_set_msg.bkpt_addr = (ADDR32) addr; | |
1005 | out_msg_buf->bkpt_set_msg.pass_count = 1; | |
1006 | out_msg_buf->bkpt_set_msg.bkpt_type = -1; /* use illop for 29000 */ | |
c5aa993b JM |
1007 | msg_send_serial (out_msg_buf); |
1008 | if (expect_msg (BKPT_SET_ACK, in_msg_buf, 1)) | |
1009 | { | |
1010 | return 0; /* Success */ | |
1011 | } | |
1012 | else | |
1013 | { | |
1014 | return 1; /* Failure */ | |
1015 | } | |
c906108c SS |
1016 | } |
1017 | ||
1018 | /************************************************* REMOTE_DELETE_BREAKPOINT */ | |
1019 | static int | |
fba45db2 | 1020 | mm_remove_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c SS |
1021 | { |
1022 | out_msg_buf->bkpt_rm_msg.code = BKPT_RM; | |
c5aa993b | 1023 | out_msg_buf->bkpt_rm_msg.length = 4 * 3; |
c906108c SS |
1024 | out_msg_buf->bkpt_rm_msg.memory_space = I_MEM; |
1025 | out_msg_buf->bkpt_rm_msg.bkpt_addr = (ADDR32) addr; | |
c5aa993b JM |
1026 | msg_send_serial (out_msg_buf); |
1027 | if (expect_msg (BKPT_RM_ACK, in_msg_buf, 1)) | |
1028 | { | |
1029 | return 0; /* Success */ | |
1030 | } | |
1031 | else | |
1032 | { | |
1033 | return 1; /* Failure */ | |
1034 | } | |
c906108c SS |
1035 | } |
1036 | ||
1037 | ||
1038 | /******************************************************* REMOTE_KILL */ | |
1039 | static void | |
fba45db2 | 1040 | mm_kill (char *arg, int from_tty) |
c906108c | 1041 | { |
c5aa993b | 1042 | char buf[4]; |
c906108c SS |
1043 | |
1044 | #if defined(KERNEL_DEBUGGING) | |
c5aa993b JM |
1045 | /* We don't ever kill the kernel */ |
1046 | if (from_tty) | |
1047 | { | |
1048 | printf ("Kernel not killed, but left in current state.\n"); | |
1049 | printf ("Use detach to leave kernel running.\n"); | |
1050 | } | |
c906108c | 1051 | #else |
c5aa993b JM |
1052 | out_msg_buf->break_msg.code = BREAK; |
1053 | out_msg_buf->bkpt_set_msg.length = 4 * 0; | |
1054 | expect_msg (HALT, in_msg_buf, from_tty); | |
1055 | if (from_tty) | |
1056 | { | |
1057 | printf ("Target has been stopped."); | |
1058 | printf ("Would you like to do a hardware reset (y/n) [n] "); | |
1059 | fgets (buf, 3, stdin); | |
1060 | if (buf[0] == 'y') | |
1061 | { | |
1062 | out_msg_buf->reset_msg.code = RESET; | |
1063 | out_msg_buf->bkpt_set_msg.length = 4 * 0; | |
1064 | expect_msg (RESET_ACK, in_msg_buf, from_tty); | |
1065 | printf ("Target has been reset."); | |
c906108c | 1066 | } |
c5aa993b JM |
1067 | } |
1068 | pop_target (); | |
1069 | #endif | |
c906108c SS |
1070 | } |
1071 | ||
1072 | ||
1073 | ||
1074 | /***************************************************************************/ | |
1075 | /* | |
1076 | * Load a program into the target. | |
1077 | */ | |
1078 | static void | |
fba45db2 | 1079 | mm_load (char *arg_string, int from_tty) |
c906108c SS |
1080 | { |
1081 | dont_repeat (); | |
1082 | ||
1083 | #if defined(KERNEL_DEBUGGING) | |
c5aa993b | 1084 | printf ("The kernel had better be loaded already! Loading not done.\n"); |
c906108c SS |
1085 | #else |
1086 | if (arg_string == 0) | |
1087 | error ("The load command takes a file name"); | |
1088 | ||
1089 | arg_string = tilde_expand (arg_string); | |
b8c9b27d | 1090 | make_cleanup (xfree, arg_string); |
c906108c SS |
1091 | QUIT; |
1092 | immediate_quit++; | |
c5aa993b | 1093 | error ("File loading is not yet supported for MiniMon."); |
c906108c SS |
1094 | /* FIXME, code to load your file here... */ |
1095 | /* You may need to do an init_target_mm() */ | |
1096 | /* init_target_mm(?,?,?,?,?,?,?,?); */ | |
1097 | immediate_quit--; | |
2df3850c | 1098 | /* symbol_file_add (arg_string, from_tty, text_addr, 0, 0); */ |
c906108c SS |
1099 | #endif |
1100 | ||
1101 | } | |
1102 | ||
1103 | /************************************************ REMOTE_WRITE_INFERIOR_MEMORY | |
1104 | ** Copy LEN bytes of data from debugger memory at MYADDR | |
1105 | to inferior's memory at MEMADDR. Returns number of bytes written. */ | |
1106 | static int | |
fba45db2 | 1107 | mm_write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1108 | { |
c5aa993b JM |
1109 | int i, nwritten; |
1110 | ||
1111 | out_msg_buf->write_req_msg.code = WRITE_REQ; | |
1112 | out_msg_buf->write_req_msg.memory_space = mm_memory_space (memaddr); | |
1113 | ||
1114 | nwritten = 0; | |
1115 | while (nwritten < len) | |
1116 | { | |
1117 | int num_to_write = len - nwritten; | |
1118 | if (num_to_write > MAXDATA) | |
1119 | num_to_write = MAXDATA; | |
1120 | for (i = 0; i < num_to_write; i++) | |
1121 | out_msg_buf->write_req_msg.data[i] = myaddr[i + nwritten]; | |
1122 | out_msg_buf->write_req_msg.byte_count = num_to_write; | |
1123 | out_msg_buf->write_req_msg.length = 3 * 4 + num_to_write; | |
1124 | out_msg_buf->write_req_msg.address = memaddr + nwritten; | |
1125 | msg_send_serial (out_msg_buf); | |
1126 | ||
1127 | if (expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
1128 | { | |
1129 | nwritten += in_msg_buf->write_ack_msg.byte_count; | |
1130 | } | |
1131 | else | |
1132 | { | |
1133 | break; | |
1134 | } | |
1135 | } | |
1136 | return (nwritten); | |
c906108c SS |
1137 | } |
1138 | ||
1139 | /************************************************* REMOTE_READ_INFERIOR_MEMORY | |
1140 | ** Read LEN bytes from inferior memory at MEMADDR. Put the result | |
1141 | at debugger address MYADDR. Returns number of bytes read. */ | |
1142 | static int | |
fba45db2 | 1143 | mm_read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1144 | { |
c5aa993b JM |
1145 | int i, nread; |
1146 | ||
1147 | out_msg_buf->read_req_msg.code = READ_REQ; | |
1148 | out_msg_buf->read_req_msg.memory_space = mm_memory_space (memaddr); | |
1149 | ||
1150 | nread = 0; | |
1151 | while (nread < len) | |
1152 | { | |
1153 | int num_to_read = (len - nread); | |
1154 | if (num_to_read > MAXDATA) | |
1155 | num_to_read = MAXDATA; | |
1156 | out_msg_buf->read_req_msg.byte_count = num_to_read; | |
1157 | out_msg_buf->read_req_msg.length = 3 * 4 + num_to_read; | |
1158 | out_msg_buf->read_req_msg.address = memaddr + nread; | |
1159 | msg_send_serial (out_msg_buf); | |
1160 | ||
1161 | if (expect_msg (READ_ACK, in_msg_buf, 1)) | |
1162 | { | |
1163 | for (i = 0; i < in_msg_buf->read_ack_msg.byte_count; i++) | |
1164 | myaddr[i + nread] = in_msg_buf->read_ack_msg.data[i]; | |
1165 | nread += in_msg_buf->read_ack_msg.byte_count; | |
1166 | } | |
1167 | else | |
1168 | { | |
1169 | break; | |
1170 | } | |
1171 | } | |
1172 | return (nread); | |
c906108c SS |
1173 | } |
1174 | ||
1175 | /* FIXME! Merge these two. */ | |
1176 | static int | |
29e57380 C |
1177 | mm_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
1178 | struct mem_attrib *attrib ATTRIBUTE_UNUSED, | |
1179 | struct target_ops *target ATTRIBUTE_UNUSED) | |
c906108c SS |
1180 | { |
1181 | ||
c5aa993b | 1182 | memaddr = translate_addr (memaddr); |
c906108c SS |
1183 | |
1184 | if (write) | |
1185 | return mm_write_inferior_memory (memaddr, myaddr, len); | |
1186 | else | |
1187 | return mm_read_inferior_memory (memaddr, myaddr, len); | |
1188 | } | |
1189 | ||
1190 | ||
1191 | /********************************************************** MSG_SEND_SERIAL | |
1192 | ** This function is used to send a message over the | |
1193 | ** serial line. | |
1194 | ** | |
1195 | ** If the message is successfully sent, a zero is | |
1196 | ** returned. If the message was not sendable, a -1 | |
1197 | ** is returned. This function blocks. That is, it | |
1198 | ** does not return until the message is completely | |
1199 | ** sent, or until an error is encountered. | |
1200 | ** | |
1201 | */ | |
1202 | ||
1203 | int | |
fba45db2 | 1204 | msg_send_serial (union msg_t *msg_ptr) |
c906108c | 1205 | { |
c5aa993b JM |
1206 | INT32 message_size; |
1207 | int byte_count; | |
1208 | int result; | |
1209 | char c; | |
1210 | ||
1211 | /* Send message header */ | |
1212 | byte_count = 0; | |
1213 | message_size = msg_ptr->generic_msg.length + (2 * sizeof (INT32)); | |
1214 | do | |
1215 | { | |
1216 | c = *((char *) msg_ptr + byte_count); | |
1217 | result = write (mm_desc, &c, 1); | |
1218 | if (result == 1) | |
1219 | { | |
1220 | byte_count = byte_count + 1; | |
1221 | } | |
1222 | } | |
1223 | while ((byte_count < message_size)); | |
1224 | ||
1225 | return (0); | |
1226 | } /* end msg_send_serial() */ | |
c906108c SS |
1227 | |
1228 | /********************************************************** MSG_RECV_SERIAL | |
1229 | ** This function is used to receive a message over a | |
1230 | ** serial line. | |
1231 | ** | |
1232 | ** If the message is waiting in the buffer, a zero is | |
1233 | ** returned and the buffer pointed to by msg_ptr is filled | |
1234 | ** in. If no message was available, a -1 is returned. | |
1235 | ** If timeout==0, wait indefinetly for a character. | |
1236 | ** | |
1237 | */ | |
1238 | ||
1239 | int | |
fba45db2 | 1240 | msg_recv_serial (union msg_t *msg_ptr) |
c906108c | 1241 | { |
c5aa993b JM |
1242 | static INT32 length = 0; |
1243 | static INT32 byte_count = 0; | |
1244 | int result; | |
1245 | char c; | |
1246 | if (msg_ptr == 0) /* re-sync request */ | |
1247 | { | |
1248 | length = 0; | |
1249 | byte_count = 0; | |
c906108c | 1250 | #ifdef HAVE_TERMIO |
c5aa993b JM |
1251 | /* The timeout here is the prevailing timeout set with VTIME */ |
1252 | ->"timeout==0 semantics not supported" | |
1253 | read (mm_desc, in_buf, BUFER_SIZE); | |
c906108c | 1254 | #else |
c5aa993b JM |
1255 | alarm (1); |
1256 | read (mm_desc, in_buf, BUFER_SIZE); | |
1257 | alarm (0); | |
c906108c | 1258 | #endif |
c5aa993b JM |
1259 | return (0); |
1260 | } | |
1261 | /* Receive message */ | |
c906108c SS |
1262 | #ifdef HAVE_TERMIO |
1263 | /* Timeout==0, help support the mm_wait() routine */ | |
c5aa993b JM |
1264 | ->"timeout==0 semantics not supported (and its nice if they are)" |
1265 | result = read (mm_desc, &c, 1); | |
c906108c | 1266 | #else |
c5aa993b JM |
1267 | alarm (timeout); |
1268 | result = read (mm_desc, &c, 1); | |
c906108c SS |
1269 | alarm (0); |
1270 | #endif | |
c5aa993b JM |
1271 | if (result < 0) |
1272 | { | |
1273 | if (errno == EINTR) | |
1274 | { | |
1275 | error ("Timeout reading from remote system."); | |
1276 | } | |
1277 | else | |
c906108c | 1278 | perror_with_name ("remote"); |
c5aa993b JM |
1279 | } |
1280 | else if (result == 1) | |
1281 | { | |
1282 | *((char *) msg_ptr + byte_count) = c; | |
c906108c | 1283 | byte_count = byte_count + 1; |
c5aa993b | 1284 | } |
c906108c | 1285 | |
c5aa993b JM |
1286 | /* Message header received. Save message length. */ |
1287 | if (byte_count == (2 * sizeof (INT32))) | |
1288 | length = msg_ptr->generic_msg.length; | |
c906108c | 1289 | |
c5aa993b JM |
1290 | if (byte_count >= (length + (2 * sizeof (INT32)))) |
1291 | { | |
c906108c SS |
1292 | /* Message received */ |
1293 | byte_count = 0; | |
c5aa993b JM |
1294 | return (0); |
1295 | } | |
1296 | else | |
1297 | return (-1); | |
c906108c | 1298 | |
c5aa993b | 1299 | } /* end msg_recv_serial() */ |
c906108c SS |
1300 | |
1301 | /********************************************************************* KBD_RAW | |
1302 | ** This function is used to put the keyboard in "raw" | |
1303 | ** mode for BSD Unix. The original status is saved | |
1304 | ** so that it may be restored later. | |
1305 | */ | |
1306 | TERMINAL kbd_tbuf; | |
1307 | ||
1308 | int | |
fba45db2 | 1309 | kbd_raw (void) |
c5aa993b JM |
1310 | { |
1311 | int result; | |
1312 | TERMINAL tbuf; | |
c906108c | 1313 | |
c5aa993b | 1314 | /* Get keyboard termio (to save to restore original modes) */ |
c906108c | 1315 | #ifdef HAVE_TERMIO |
c5aa993b | 1316 | result = ioctl (0, TCGETA, &kbd_tbuf); |
c906108c | 1317 | #else |
c5aa993b | 1318 | result = ioctl (0, TIOCGETP, &kbd_tbuf); |
c906108c | 1319 | #endif |
c5aa993b JM |
1320 | if (result == -1) |
1321 | return (errno); | |
c906108c | 1322 | |
c5aa993b | 1323 | /* Get keyboard TERMINAL (for modification) */ |
c906108c | 1324 | #ifdef HAVE_TERMIO |
c5aa993b | 1325 | result = ioctl (0, TCGETA, &tbuf); |
c906108c | 1326 | #else |
c5aa993b | 1327 | result = ioctl (0, TIOCGETP, &tbuf); |
c906108c | 1328 | #endif |
c5aa993b JM |
1329 | if (result == -1) |
1330 | return (errno); | |
c906108c | 1331 | |
c5aa993b | 1332 | /* Set up new parameters */ |
c906108c | 1333 | #ifdef HAVE_TERMIO |
c5aa993b JM |
1334 | tbuf.c_iflag = tbuf.c_iflag & |
1335 | ~(INLCR | ICRNL | IUCLC | ISTRIP | IXON | BRKINT); | |
1336 | tbuf.c_lflag = tbuf.c_lflag & ~(ICANON | ISIG | ECHO); | |
1337 | tbuf.c_cc[4] = 0; /* MIN */ | |
1338 | tbuf.c_cc[5] = 0; /* TIME */ | |
c906108c | 1339 | #else |
c5aa993b JM |
1340 | /* FIXME: not sure if this is correct (matches HAVE_TERMIO). */ |
1341 | tbuf.sg_flags |= RAW; | |
1342 | tbuf.sg_flags |= ANYP; | |
1343 | tbuf.sg_flags &= ~ECHO; | |
c906108c SS |
1344 | #endif |
1345 | ||
c5aa993b | 1346 | /* Set keyboard termio to new mode (RAW) */ |
c906108c | 1347 | #ifdef HAVE_TERMIO |
c5aa993b | 1348 | result = ioctl (0, TCSETAF, &tbuf); |
c906108c | 1349 | #else |
c5aa993b JM |
1350 | result = ioctl (0, TIOCSETP, &tbuf); |
1351 | #endif | |
1352 | if (result == -1) | |
1353 | return (errno); | |
c906108c | 1354 | |
c5aa993b JM |
1355 | return (0); |
1356 | } /* end kbd_raw() */ | |
c906108c SS |
1357 | |
1358 | ||
1359 | ||
1360 | /***************************************************************** KBD_RESTORE | |
1361 | ** This function is used to put the keyboard back in the | |
1362 | ** mode it was in before kbk_raw was called. Note that | |
1363 | ** kbk_raw() must have been called at least once before | |
1364 | ** kbd_restore() is called. | |
1365 | */ | |
1366 | ||
1367 | int | |
fba45db2 | 1368 | kbd_restore (void) |
c5aa993b JM |
1369 | { |
1370 | int result; | |
c906108c | 1371 | |
c5aa993b | 1372 | /* Set keyboard termio to original mode */ |
c906108c | 1373 | #ifdef HAVE_TERMIO |
c5aa993b | 1374 | result = ioctl (0, TCSETAF, &kbd_tbuf); |
c906108c | 1375 | #else |
c5aa993b | 1376 | result = ioctl (0, TIOCGETP, &kbd_tbuf); |
c906108c SS |
1377 | #endif |
1378 | ||
c5aa993b JM |
1379 | if (result == -1) |
1380 | return (errno); | |
c906108c | 1381 | |
c5aa993b JM |
1382 | return (0); |
1383 | } /* end kbd_cooked() */ | |
c906108c SS |
1384 | |
1385 | ||
c5aa993b | 1386 | /*****************************************************************************/ |
c906108c SS |
1387 | /* Fetch a single register indicatated by 'regno'. |
1388 | * Returns 0/-1 on success/failure. | |
1389 | */ | |
1390 | static int | |
fba45db2 | 1391 | fetch_register (int regno) |
c906108c | 1392 | { |
c5aa993b JM |
1393 | int result; |
1394 | out_msg_buf->read_req_msg.code = READ_REQ; | |
1395 | out_msg_buf->read_req_msg.length = 4 * 3; | |
c906108c SS |
1396 | out_msg_buf->read_req_msg.byte_count = 4; |
1397 | ||
1398 | if (regno == GR1_REGNUM) | |
c5aa993b JM |
1399 | { |
1400 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
1401 | out_msg_buf->read_req_msg.address = 1; | |
1402 | } | |
c906108c | 1403 | else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32) |
c5aa993b JM |
1404 | { |
1405 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
1406 | out_msg_buf->read_req_msg.address = (regno - GR96_REGNUM) + 96; | |
1407 | } | |
c906108c | 1408 | #if defined(GR64_REGNUM) |
c5aa993b JM |
1409 | else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32) |
1410 | { | |
1411 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
1412 | out_msg_buf->read_req_msg.address = (regno - GR64_REGNUM) + 64; | |
1413 | } | |
1414 | #endif /* GR64_REGNUM */ | |
c906108c | 1415 | else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128) |
c5aa993b JM |
1416 | { |
1417 | out_msg_buf->read_req_msg.memory_space = LOCAL_REG; | |
1418 | out_msg_buf->read_req_msg.address = (regno - LR0_REGNUM); | |
1419 | } | |
1420 | else if (regno >= FPE_REGNUM && regno <= EXO_REGNUM) | |
1421 | { | |
1422 | int val = -1; | |
1423 | supply_register (160 + (regno - FPE_REGNUM), &val); | |
1424 | return 0; /* Pretend Success */ | |
1425 | } | |
1426 | else | |
1427 | { | |
1428 | out_msg_buf->read_req_msg.memory_space = SPECIAL_REG; | |
1429 | out_msg_buf->read_req_msg.address = regnum_to_srnum (regno); | |
1430 | } | |
1431 | ||
1432 | msg_send_serial (out_msg_buf); | |
1433 | ||
1434 | if (expect_msg (READ_ACK, in_msg_buf, 1)) | |
1435 | { | |
1436 | supply_register (regno, &(in_msg_buf->read_r_ack_msg.data[0])); | |
1437 | result = 0; | |
1438 | } | |
1439 | else | |
1440 | { | |
1441 | result = -1; | |
1442 | } | |
c906108c SS |
1443 | return result; |
1444 | } | |
c5aa993b | 1445 | /*****************************************************************************/ |
c906108c SS |
1446 | /* Store a single register indicated by 'regno'. |
1447 | * Returns 0/-1 on success/failure. | |
1448 | */ | |
1449 | static int | |
fba45db2 | 1450 | store_register (int regno) |
c906108c | 1451 | { |
c5aa993b | 1452 | int result; |
c906108c | 1453 | |
c5aa993b JM |
1454 | out_msg_buf->write_req_msg.code = WRITE_REQ; |
1455 | out_msg_buf->write_req_msg.length = 4 * 4; | |
c906108c SS |
1456 | out_msg_buf->write_req_msg.byte_count = 4; |
1457 | out_msg_buf->write_r_msg.data[0] = read_register (regno); | |
1458 | ||
1459 | if (regno == GR1_REGNUM) | |
c5aa993b JM |
1460 | { |
1461 | out_msg_buf->write_req_msg.memory_space = GLOBAL_REG; | |
1462 | out_msg_buf->write_req_msg.address = 1; | |
1463 | /* Setting GR1 changes the numbers of all the locals, so invalidate the | |
1464 | * register cache. Do this *after* calling read_register, because we want | |
1465 | * read_register to return the value that write_register has just stuffed | |
1466 | * into the registers array, not the value of the register fetched from | |
1467 | * the inferior. | |
1468 | */ | |
1469 | registers_changed (); | |
1470 | } | |
c906108c | 1471 | #if defined(GR64_REGNUM) |
c5aa993b JM |
1472 | else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32) |
1473 | { | |
1474 | out_msg_buf->write_req_msg.memory_space = GLOBAL_REG; | |
1475 | out_msg_buf->write_req_msg.address = (regno - GR64_REGNUM) + 64; | |
1476 | } | |
1477 | #endif /* GR64_REGNUM */ | |
c906108c | 1478 | else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32) |
c5aa993b JM |
1479 | { |
1480 | out_msg_buf->write_req_msg.memory_space = GLOBAL_REG; | |
1481 | out_msg_buf->write_req_msg.address = (regno - GR96_REGNUM) + 96; | |
1482 | } | |
c906108c | 1483 | else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128) |
c5aa993b JM |
1484 | { |
1485 | out_msg_buf->write_req_msg.memory_space = LOCAL_REG; | |
1486 | out_msg_buf->write_req_msg.address = (regno - LR0_REGNUM); | |
1487 | } | |
1488 | else if (regno >= FPE_REGNUM && regno <= EXO_REGNUM) | |
1489 | { | |
1490 | return 0; /* Pretend Success */ | |
1491 | } | |
1492 | else | |
1493 | /* An unprotected or protected special register */ | |
1494 | { | |
1495 | out_msg_buf->write_req_msg.memory_space = SPECIAL_REG; | |
1496 | out_msg_buf->write_req_msg.address = regnum_to_srnum (regno); | |
1497 | } | |
c906108c | 1498 | |
c5aa993b | 1499 | msg_send_serial (out_msg_buf); |
c906108c | 1500 | |
c5aa993b JM |
1501 | if (expect_msg (WRITE_ACK, in_msg_buf, 1)) |
1502 | { | |
1503 | result = 0; | |
1504 | } | |
1505 | else | |
1506 | { | |
1507 | result = -1; | |
1508 | } | |
c906108c SS |
1509 | return result; |
1510 | } | |
1511 | /****************************************************************************/ | |
1512 | /* | |
1513 | * Convert a gdb special register number to a 29000 special register number. | |
1514 | */ | |
1515 | static int | |
fba45db2 | 1516 | regnum_to_srnum (int regno) |
c906108c | 1517 | { |
c5aa993b JM |
1518 | switch (regno) |
1519 | { | |
1520 | case VAB_REGNUM: | |
1521 | return (0); | |
1522 | case OPS_REGNUM: | |
1523 | return (1); | |
1524 | case CPS_REGNUM: | |
1525 | return (2); | |
1526 | case CFG_REGNUM: | |
1527 | return (3); | |
1528 | case CHA_REGNUM: | |
1529 | return (4); | |
1530 | case CHD_REGNUM: | |
1531 | return (5); | |
1532 | case CHC_REGNUM: | |
1533 | return (6); | |
1534 | case RBP_REGNUM: | |
1535 | return (7); | |
1536 | case TMC_REGNUM: | |
1537 | return (8); | |
1538 | case TMR_REGNUM: | |
1539 | return (9); | |
1540 | case NPC_REGNUM: | |
1541 | return (USE_SHADOW_PC ? (20) : (10)); | |
1542 | case PC_REGNUM: | |
1543 | return (USE_SHADOW_PC ? (21) : (11)); | |
1544 | case PC2_REGNUM: | |
1545 | return (USE_SHADOW_PC ? (22) : (12)); | |
1546 | case MMU_REGNUM: | |
1547 | return (13); | |
1548 | case LRU_REGNUM: | |
1549 | return (14); | |
1550 | case IPC_REGNUM: | |
1551 | return (128); | |
1552 | case IPA_REGNUM: | |
1553 | return (129); | |
1554 | case IPB_REGNUM: | |
1555 | return (130); | |
1556 | case Q_REGNUM: | |
1557 | return (131); | |
1558 | case ALU_REGNUM: | |
1559 | return (132); | |
1560 | case BP_REGNUM: | |
1561 | return (133); | |
1562 | case FC_REGNUM: | |
1563 | return (134); | |
1564 | case CR_REGNUM: | |
1565 | return (135); | |
1566 | case FPE_REGNUM: | |
1567 | return (160); | |
1568 | case INTE_REGNUM: | |
1569 | return (161); | |
1570 | case FPS_REGNUM: | |
1571 | return (162); | |
1572 | case EXO_REGNUM: | |
1573 | return (164); | |
1574 | default: | |
1575 | return (255); /* Failure ? */ | |
1576 | } | |
c906108c SS |
1577 | } |
1578 | /****************************************************************************/ | |
1579 | /* | |
1580 | * Initialize the target debugger (minimon only). | |
1581 | */ | |
1582 | static void | |
fba45db2 KB |
1583 | init_target_mm (ADDR32 tstart, ADDR32 tend, ADDR32 dstart, ADDR32 dend, |
1584 | ADDR32 entry, INT32 ms_size, INT32 rs_size, ADDR32 arg_start) | |
c906108c | 1585 | { |
c5aa993b JM |
1586 | out_msg_buf->init_msg.code = INIT; |
1587 | out_msg_buf->init_msg.length = sizeof (struct init_msg_t) - 2 * sizeof (INT32); | |
1588 | out_msg_buf->init_msg.text_start = tstart; | |
1589 | out_msg_buf->init_msg.text_end = tend; | |
1590 | out_msg_buf->init_msg.data_start = dstart; | |
1591 | out_msg_buf->init_msg.data_end = dend; | |
1592 | out_msg_buf->init_msg.entry_point = entry; | |
1593 | out_msg_buf->init_msg.mem_stack_size = ms_size; | |
1594 | out_msg_buf->init_msg.reg_stack_size = rs_size; | |
1595 | out_msg_buf->init_msg.arg_start = arg_start; | |
1596 | msg_send_serial (out_msg_buf); | |
1597 | expect_msg (INIT_ACK, in_msg_buf, 1); | |
c906108c SS |
1598 | } |
1599 | /****************************************************************************/ | |
1600 | /* | |
1601 | * Return a pointer to a string representing the given message code. | |
1602 | * Not all messages are represented here, only the ones that we expect | |
1603 | * to be called with. | |
1604 | */ | |
c5aa993b | 1605 | static char * |
fba45db2 | 1606 | msg_str (INT32 code) |
c906108c | 1607 | { |
c5aa993b JM |
1608 | static char cbuf[32]; |
1609 | ||
1610 | switch (code) | |
1611 | { | |
1612 | case BKPT_SET_ACK: | |
1613 | sprintf (cbuf, "%s (%d)", "BKPT_SET_ACK", code); | |
1614 | break; | |
1615 | case BKPT_RM_ACK: | |
1616 | sprintf (cbuf, "%s (%d)", "BKPT_RM_ACK", code); | |
1617 | break; | |
1618 | case INIT_ACK: | |
1619 | sprintf (cbuf, "%s (%d)", "INIT_ACK", code); | |
1620 | break; | |
1621 | case READ_ACK: | |
1622 | sprintf (cbuf, "%s (%d)", "READ_ACK", code); | |
1623 | break; | |
1624 | case WRITE_ACK: | |
1625 | sprintf (cbuf, "%s (%d)", "WRITE_ACK", code); | |
1626 | break; | |
1627 | case ERROR: | |
1628 | sprintf (cbuf, "%s (%d)", "ERROR", code); | |
1629 | break; | |
1630 | case HALT: | |
1631 | sprintf (cbuf, "%s (%d)", "HALT", code); | |
1632 | break; | |
1633 | default: | |
1634 | sprintf (cbuf, "UNKNOWN (%d)", code); | |
1635 | break; | |
1636 | } | |
1637 | return (cbuf); | |
c906108c SS |
1638 | } |
1639 | /****************************************************************************/ | |
1640 | /* | |
1641 | * Selected (not all of them) error codes that we might get. | |
1642 | */ | |
c5aa993b | 1643 | static char * |
fba45db2 | 1644 | error_msg_str (INT32 code) |
c906108c | 1645 | { |
c5aa993b JM |
1646 | static char cbuf[50]; |
1647 | ||
1648 | switch (code) | |
1649 | { | |
1650 | case EMFAIL: | |
1651 | return ("EMFAIL: unrecoverable error"); | |
1652 | case EMBADADDR: | |
1653 | return ("EMBADADDR: Illegal address"); | |
1654 | case EMBADREG: | |
1655 | return ("EMBADREG: Illegal register "); | |
1656 | case EMACCESS: | |
1657 | return ("EMACCESS: Could not access memory"); | |
1658 | case EMBADMSG: | |
1659 | return ("EMBADMSG: Unknown message type"); | |
1660 | case EMMSG2BIG: | |
1661 | return ("EMMSG2BIG: Message to large"); | |
1662 | case EMNOSEND: | |
1663 | return ("EMNOSEND: Could not send message"); | |
1664 | case EMNORECV: | |
1665 | return ("EMNORECV: Could not recv message"); | |
1666 | case EMRESET: | |
1667 | return ("EMRESET: Could not RESET target"); | |
1668 | case EMCONFIG: | |
1669 | return ("EMCONFIG: Could not get target CONFIG"); | |
1670 | case EMSTATUS: | |
1671 | return ("EMSTATUS: Could not get target STATUS"); | |
1672 | case EMREAD: | |
1673 | return ("EMREAD: Could not READ target memory"); | |
1674 | case EMWRITE: | |
1675 | return ("EMWRITE: Could not WRITE target memory"); | |
1676 | case EMBKPTSET: | |
1677 | return ("EMBKPTSET: Could not set breakpoint"); | |
1678 | case EMBKPTRM: | |
1679 | return ("EMBKPTRM: Could not remove breakpoint"); | |
1680 | case EMBKPTSTAT: | |
1681 | return ("EMBKPTSTAT: Could not get breakpoint status"); | |
1682 | case EMBKPTNONE: | |
1683 | return ("EMBKPTNONE: All breakpoints in use"); | |
1684 | case EMBKPTUSED: | |
1685 | return ("EMBKPTUSED: Breakpoints already in use"); | |
1686 | case EMINIT: | |
1687 | return ("EMINIT: Could not init target memory"); | |
1688 | case EMGO: | |
1689 | return ("EMGO: Could not start execution"); | |
1690 | case EMSTEP: | |
1691 | return ("EMSTEP: Could not single step"); | |
1692 | case EMBREAK: | |
1693 | return ("EMBREAK: Could not BREAK"); | |
1694 | case EMCOMMERR: | |
1695 | return ("EMCOMMERR: Communication error"); | |
1696 | default: | |
1697 | sprintf (cbuf, "error number %d", code); | |
1698 | break; | |
1699 | } /* end switch */ | |
1700 | ||
1701 | return (cbuf); | |
c906108c SS |
1702 | } |
1703 | /****************************************************************************/ | |
d742f2c2 KB |
1704 | |
1705 | /* Receive a message, placing it in MSG_BUF, and expect it to be of | |
1706 | type MSGCODE. If an error occurs, a non-zero FROM_TTY indicates | |
1707 | that the message should be printed. | |
1708 | ||
1709 | Return 0 for failure, 1 for success. */ | |
1710 | ||
c906108c | 1711 | static int |
d742f2c2 | 1712 | expect_msg (INT32 msgcode, union msg_t *msg_buf, int from_tty) |
c906108c | 1713 | { |
c5aa993b JM |
1714 | int retries = 0; |
1715 | while (msg_recv_serial (msg_buf) && (retries++ < MAX_RETRIES)); | |
1716 | if (retries >= MAX_RETRIES) | |
1717 | { | |
1718 | printf ("Expected msg %s, ", msg_str (msgcode)); | |
1719 | printf ("no message received!\n"); | |
1720 | return (0); /* Failure */ | |
1721 | } | |
c906108c | 1722 | |
c5aa993b JM |
1723 | if (msg_buf->generic_msg.code != msgcode) |
1724 | { | |
1725 | if (from_tty) | |
1726 | { | |
1727 | printf ("Expected msg %s, ", msg_str (msgcode)); | |
1728 | printf ("got msg %s\n", msg_str (msg_buf->generic_msg.code)); | |
1729 | if (msg_buf->generic_msg.code == ERROR) | |
1730 | printf ("%s\n", error_msg_str (msg_buf->error_msg.error_code)); | |
1731 | } | |
1732 | return (0); /* Failure */ | |
1733 | } | |
1734 | return (1); /* Success */ | |
1735 | } | |
c906108c SS |
1736 | /****************************************************************************/ |
1737 | /* | |
1738 | * Determine the MiniMon memory space qualifier based on the addr. | |
1739 | * FIXME: Can't distinguis I_ROM/D_ROM. | |
1740 | * FIXME: Doesn't know anything about I_CACHE/D_CACHE. | |
1741 | */ | |
1742 | static int | |
fba45db2 | 1743 | mm_memory_space (CORE_ADDR *addr) |
c906108c | 1744 | { |
c5aa993b JM |
1745 | ADDR32 tstart = target_config.I_mem_start; |
1746 | ADDR32 tend = tstart + target_config.I_mem_size; | |
1747 | ADDR32 dstart = target_config.D_mem_start; | |
1748 | ADDR32 dend = tstart + target_config.D_mem_size; | |
1749 | ADDR32 rstart = target_config.ROM_start; | |
1750 | ADDR32 rend = tstart + target_config.ROM_size; | |
1751 | ||
1752 | if (((ADDR32) addr >= tstart) && ((ADDR32) addr < tend)) | |
1753 | { | |
1754 | return I_MEM; | |
1755 | } | |
1756 | else if (((ADDR32) addr >= dstart) && ((ADDR32) addr < dend)) | |
1757 | { | |
1758 | return D_MEM; | |
1759 | } | |
1760 | else if (((ADDR32) addr >= rstart) && ((ADDR32) addr < rend)) | |
1761 | { | |
1762 | /* FIXME: how do we determine between D_ROM and I_ROM */ | |
1763 | return D_ROM; | |
1764 | } | |
1765 | else /* FIXME: what do me do now? */ | |
1766 | return D_MEM; /* Hmmm! */ | |
c906108c SS |
1767 | } |
1768 | ||
1769 | /****************************************************************************/ | |
1770 | /* | |
1771 | * Define the target subroutine names | |
1772 | */ | |
c5aa993b | 1773 | struct target_ops mm_ops; |
c906108c | 1774 | |
c5aa993b JM |
1775 | static void |
1776 | init_mm_ops (void) | |
c906108c | 1777 | { |
c5aa993b JM |
1778 | mm_ops.to_shortname = "minimon"; |
1779 | mm_ops.to_longname = "Remote AMD/Minimon target"; | |
1780 | mm_ops.to_doc = "Remote debug an AMD 290*0 using the MiniMon dbg core on the target"; | |
1781 | mm_ops.to_open = mm_open; | |
1782 | mm_ops.to_close = mm_close; | |
1783 | mm_ops.to_attach = mm_attach; | |
c906108c SS |
1784 | mm_ops.to_post_attach = NULL; |
1785 | mm_ops.to_require_attach = NULL; | |
c5aa993b | 1786 | mm_ops.to_detach = mm_detach; |
c906108c | 1787 | mm_ops.to_require_detach = NULL; |
c5aa993b JM |
1788 | mm_ops.to_resume = mm_resume; |
1789 | mm_ops.to_wait = mm_wait; | |
c906108c | 1790 | mm_ops.to_post_wait = NULL; |
c5aa993b JM |
1791 | mm_ops.to_fetch_registers = mm_fetch_registers; |
1792 | mm_ops.to_store_registers = mm_store_registers; | |
1793 | mm_ops.to_prepare_to_store = mm_prepare_to_store; | |
1794 | mm_ops.to_xfer_memory = mm_xfer_inferior_memory; | |
1795 | mm_ops.to_files_info = mm_files_info; | |
1796 | mm_ops.to_insert_breakpoint = mm_insert_breakpoint; | |
1797 | mm_ops.to_remove_breakpoint = mm_remove_breakpoint; | |
1798 | mm_ops.to_terminal_init = 0; | |
1799 | mm_ops.to_terminal_inferior = 0; | |
1800 | mm_ops.to_terminal_ours_for_output = 0; | |
1801 | mm_ops.to_terminal_ours = 0; | |
1802 | mm_ops.to_terminal_info = 0; | |
1803 | mm_ops.to_kill = mm_kill; | |
1804 | mm_ops.to_load = mm_load; | |
1805 | mm_ops.to_lookup_symbol = 0; | |
1806 | mm_ops.to_create_inferior = mm_create_inferior; | |
c906108c SS |
1807 | mm_ops.to_post_startup_inferior = NULL; |
1808 | mm_ops.to_acknowledge_created_inferior = NULL; | |
1809 | mm_ops.to_clone_and_follow_inferior = NULL; | |
1810 | mm_ops.to_post_follow_inferior_by_clone = NULL; | |
1811 | mm_ops.to_insert_fork_catchpoint = NULL; | |
1812 | mm_ops.to_remove_fork_catchpoint = NULL; | |
1813 | mm_ops.to_insert_vfork_catchpoint = NULL; | |
1814 | mm_ops.to_remove_vfork_catchpoint = NULL; | |
1815 | mm_ops.to_has_forked = NULL; | |
1816 | mm_ops.to_has_vforked = NULL; | |
1817 | mm_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
c5aa993b | 1818 | mm_ops.to_post_follow_vfork = NULL; |
c906108c SS |
1819 | mm_ops.to_insert_exec_catchpoint = NULL; |
1820 | mm_ops.to_remove_exec_catchpoint = NULL; | |
1821 | mm_ops.to_has_execd = NULL; | |
1822 | mm_ops.to_reported_exec_events_per_exec_call = NULL; | |
1823 | mm_ops.to_has_exited = NULL; | |
c5aa993b JM |
1824 | mm_ops.to_mourn_inferior = mm_mourn; |
1825 | mm_ops.to_can_run = 0; | |
1826 | mm_ops.to_notice_signals = 0; | |
1827 | mm_ops.to_thread_alive = 0; | |
1828 | mm_ops.to_stop = 0; | |
c906108c SS |
1829 | mm_ops.to_pid_to_exec_file = NULL; |
1830 | mm_ops.to_core_file_to_sym_file = NULL; | |
c5aa993b JM |
1831 | mm_ops.to_stratum = process_stratum; |
1832 | mm_ops.DONT_USE = 0; | |
1833 | mm_ops.to_has_all_memory = 1; | |
1834 | mm_ops.to_has_memory = 1; | |
1835 | mm_ops.to_has_stack = 1; | |
1836 | mm_ops.to_has_registers = 1; | |
1837 | mm_ops.to_has_execution = 1; | |
1838 | mm_ops.to_sections = 0; | |
1839 | mm_ops.to_sections_end = 0; | |
1840 | mm_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
1841 | }; |
1842 | ||
1843 | void | |
fba45db2 | 1844 | _initialize_remote_mm (void) |
c906108c | 1845 | { |
c5aa993b | 1846 | init_mm_ops (); |
c906108c SS |
1847 | add_target (&mm_ops); |
1848 | } | |
1849 | ||
1850 | #ifdef NO_HIF_SUPPORT | |
fba45db2 | 1851 | service_HIF (union msg_t *msg) |
c906108c | 1852 | { |
c5aa993b | 1853 | return (0); /* Emulate a failure */ |
c906108c SS |
1854 | } |
1855 | #endif |