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 | |
fba45db2 | 129 | mm_timer (void) |
c906108c SS |
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 | |
fba45db2 | 151 | mm_create_inferior (char *execfile, char *args, char **env) |
c906108c SS |
152 | { |
153 | #define MAX_TOKENS 25 | |
154 | #define BUFFER_SIZE 256 | |
c5aa993b JM |
155 | int token_count; |
156 | int result; | |
157 | char *token[MAX_TOKENS]; | |
158 | char cmd_line[BUFFER_SIZE]; | |
c906108c SS |
159 | |
160 | if (args && *args) | |
161 | error ("Can't pass arguments to remote mm process (yet)."); | |
162 | ||
163 | if (execfile == 0 /* || exec_bfd == 0 */ ) | |
164 | error ("No executable file specified"); | |
165 | ||
c5aa993b JM |
166 | if (!mm_stream) |
167 | { | |
168 | printf ("Minimon not open yet.\n"); | |
169 | return; | |
170 | } | |
c906108c SS |
171 | |
172 | /* On ultra3 (NYU) we assume the kernel is already running so there is | |
173 | no file to download. | |
174 | FIXME: Fixed required here -> load your program, possibly with mm_load(). | |
c5aa993b | 175 | */ |
c906108c SS |
176 | printf_filtered ("\n\ |
177 | Assuming you are at NYU debuging a kernel, i.e., no need to download.\n\n"); | |
178 | ||
179 | /* We will get a task spawn event immediately. */ | |
180 | init_wait_for_inferior (); | |
181 | clear_proceed_status (); | |
182 | stop_soon_quietly = 1; | |
183 | proceed (-1, TARGET_SIGNAL_DEFAULT, 0); | |
184 | normal_stop (); | |
185 | } | |
186 | /**************************************************** REMOTE_MOURN_INFERIOR */ | |
187 | static void | |
fba45db2 | 188 | mm_mourn (void) |
c906108c | 189 | { |
c5aa993b JM |
190 | pop_target (); /* Pop back to no-child state */ |
191 | generic_mourn_inferior (); | |
c906108c SS |
192 | } |
193 | ||
194 | /********************************************************************** damn_b | |
195 | */ | |
196 | /* Translate baud rates from integers to damn B_codes. Unix should | |
197 | have outgrown this crap years ago, but even POSIX wouldn't buck it. */ | |
198 | ||
199 | #ifndef B19200 | |
200 | #define B19200 EXTA | |
201 | #endif | |
202 | #ifndef B38400 | |
203 | #define B38400 EXTB | |
204 | #endif | |
205 | ||
c5aa993b JM |
206 | static struct |
207 | { | |
208 | int rate, damn_b; | |
209 | } | |
210 | baudtab[] = | |
211 | { | |
212 | { | |
213 | 0, B0 | |
214 | } | |
215 | , | |
216 | { | |
217 | 50, B50 | |
218 | } | |
219 | , | |
220 | { | |
221 | 75, B75 | |
222 | } | |
223 | , | |
224 | { | |
225 | 110, B110 | |
226 | } | |
227 | , | |
228 | { | |
229 | 134, B134 | |
230 | } | |
231 | , | |
232 | { | |
233 | 150, B150 | |
234 | } | |
235 | , | |
236 | { | |
237 | 200, B200 | |
238 | } | |
239 | , | |
240 | { | |
241 | 300, B300 | |
242 | } | |
243 | , | |
244 | { | |
245 | 600, B600 | |
246 | } | |
247 | , | |
248 | { | |
249 | 1200, B1200 | |
250 | } | |
251 | , | |
252 | { | |
253 | 1800, B1800 | |
254 | } | |
255 | , | |
256 | { | |
257 | 2400, B2400 | |
258 | } | |
259 | , | |
260 | { | |
261 | 4800, B4800 | |
262 | } | |
263 | , | |
264 | { | |
265 | 9600, B9600 | |
266 | } | |
267 | , | |
268 | { | |
269 | 19200, B19200 | |
270 | } | |
271 | , | |
272 | { | |
273 | 38400, B38400 | |
274 | } | |
275 | , | |
276 | { | |
277 | -1, -1 | |
278 | } | |
279 | , | |
c906108c SS |
280 | }; |
281 | ||
c5aa993b | 282 | static int |
fba45db2 | 283 | damn_b (int rate) |
c906108c SS |
284 | { |
285 | int i; | |
286 | ||
287 | for (i = 0; baudtab[i].rate != -1; i++) | |
c5aa993b JM |
288 | if (rate == baudtab[i].rate) |
289 | return baudtab[i].damn_b; | |
290 | return B38400; /* Random */ | |
c906108c SS |
291 | } |
292 | ||
293 | ||
294 | /***************************************************************** REMOTE_OPEN | |
295 | ** Open a connection to remote minimon. | |
296 | NAME is the filename used for communication, then a space, | |
297 | then the baud rate. | |
298 | 'target adapt /dev/ttya 9600 [prognam]' for example. | |
299 | */ | |
300 | ||
301 | static char *dev_name; | |
302 | int baudrate = 9600; | |
303 | static void | |
fba45db2 | 304 | mm_open (char *name, int from_tty) |
c906108c SS |
305 | { |
306 | TERMINAL sg; | |
307 | unsigned int prl; | |
308 | char *p; | |
309 | ||
310 | /* Find the first whitespace character, it separates dev_name from | |
311 | prog_name. */ | |
312 | for (p = name; | |
313 | p && *p && !isspace (*p); p++) | |
314 | ; | |
315 | if (p == 0 || *p == '\0') | |
c5aa993b | 316 | erroid: |
c906108c | 317 | error ("Usage : <command> <serial-device> <baud-rate> [progname]"); |
c5aa993b | 318 | dev_name = (char *) xmalloc (p - name + 1); |
c906108c SS |
319 | strncpy (dev_name, name, p - name); |
320 | dev_name[p - name] = '\0'; | |
321 | ||
322 | /* Skip over the whitespace after dev_name */ | |
323 | for (; isspace (*p); p++) | |
c5aa993b JM |
324 | /*EMPTY */ ; |
325 | ||
c906108c SS |
326 | if (1 != sscanf (p, "%d ", &baudrate)) |
327 | goto erroid; | |
328 | ||
329 | /* Skip the number and then the spaces */ | |
330 | for (; isdigit (*p); p++) | |
c5aa993b | 331 | /*EMPTY */ ; |
c906108c | 332 | for (; isspace (*p); p++) |
c5aa993b JM |
333 | /*EMPTY */ ; |
334 | ||
c906108c | 335 | if (prog_name != NULL) |
b8c9b27d | 336 | xfree (prog_name); |
c906108c SS |
337 | prog_name = savestring (p, strlen (p)); |
338 | ||
339 | ||
340 | if (mm_desc >= 0) | |
341 | close (mm_desc); | |
342 | ||
343 | mm_desc = open (dev_name, O_RDWR); | |
344 | if (mm_desc < 0) | |
345 | perror_with_name (dev_name); | |
346 | ioctl (mm_desc, TIOCGETP, &sg); | |
347 | #ifdef HAVE_TERMIO | |
348 | sg.c_cc[VMIN] = 0; /* read with timeout. */ | |
349 | sg.c_cc[VTIME] = timeout * 10; | |
350 | sg.c_lflag &= ~(ICANON | ECHO); | |
351 | sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate); | |
352 | #else | |
353 | sg.sg_ispeed = damn_b (baudrate); | |
354 | sg.sg_ospeed = damn_b (baudrate); | |
355 | sg.sg_flags |= RAW; | |
356 | sg.sg_flags |= ANYP; | |
357 | sg.sg_flags &= ~ECHO; | |
358 | #endif | |
359 | ||
360 | ||
361 | ioctl (mm_desc, TIOCSETP, &sg); | |
362 | mm_stream = fdopen (mm_desc, "r+"); | |
363 | ||
364 | push_target (&mm_ops); | |
365 | ||
366 | #ifndef HAVE_TERMIO | |
367 | #ifndef NO_SIGINTERRUPT | |
368 | /* Cause SIGALRM's to make reads fail with EINTR instead of resuming | |
369 | the read. */ | |
370 | if (siginterrupt (SIGALRM, 1) != 0) | |
371 | perror ("mm_open: error in siginterrupt"); | |
372 | #endif | |
373 | ||
374 | /* Set up read timeout timer. */ | |
375 | if ((void (*)) signal (SIGALRM, mm_timer) == (void (*)) -1) | |
376 | perror ("mm_open: error in signal"); | |
377 | #endif | |
378 | ||
379 | #if defined (LOG_FILE) | |
380 | log_file = fopen (LOG_FILE, "w"); | |
381 | if (log_file == NULL) | |
382 | perror_with_name (LOG_FILE); | |
383 | #endif | |
c5aa993b JM |
384 | /* |
385 | ** Initialize target configuration structure (global) | |
c906108c | 386 | */ |
c5aa993b JM |
387 | DRAIN_INPUT (); |
388 | out_msg_buf->config_req_msg.code = CONFIG_REQ; | |
389 | out_msg_buf->config_req_msg.length = 4 * 0; | |
390 | msg_send_serial (out_msg_buf); /* send config request message */ | |
c906108c | 391 | |
c5aa993b | 392 | expect_msg (CONFIG, in_msg_buf, 1); |
c906108c SS |
393 | |
394 | a29k_get_processor_type (); | |
395 | ||
396 | /* Print out some stuff, letting the user now what's going on */ | |
c5aa993b JM |
397 | printf_filtered ("Connected to MiniMon via %s.\n", dev_name); |
398 | /* FIXME: can this restriction be removed? */ | |
399 | printf_filtered ("Remote debugging using virtual addresses works only\n"); | |
400 | printf_filtered ("\twhen virtual addresses map 1:1 to physical addresses.\n") | |
401 | ; | |
402 | if (processor_type != a29k_freeze_mode) | |
403 | { | |
404 | fprintf_filtered (gdb_stderr, | |
405 | "Freeze-mode debugging not available, and can only be done on an A29050.\n"); | |
406 | } | |
c906108c | 407 | |
c5aa993b JM |
408 | target_config.code = CONFIG; |
409 | target_config.length = 0; | |
410 | target_config.processor_id = in_msg_buf->config_msg.processor_id; | |
411 | target_config.version = in_msg_buf->config_msg.version; | |
412 | target_config.I_mem_start = in_msg_buf->config_msg.I_mem_start; | |
413 | target_config.I_mem_size = in_msg_buf->config_msg.I_mem_size; | |
414 | target_config.D_mem_start = in_msg_buf->config_msg.D_mem_start; | |
415 | target_config.D_mem_size = in_msg_buf->config_msg.D_mem_size; | |
416 | target_config.ROM_start = in_msg_buf->config_msg.ROM_start; | |
417 | target_config.ROM_size = in_msg_buf->config_msg.ROM_size; | |
418 | target_config.max_msg_size = in_msg_buf->config_msg.max_msg_size; | |
419 | target_config.max_bkpts = in_msg_buf->config_msg.max_bkpts; | |
420 | target_config.coprocessor = in_msg_buf->config_msg.coprocessor; | |
421 | target_config.reserved = in_msg_buf->config_msg.reserved; | |
422 | if (from_tty) | |
423 | { | |
424 | printf ("Connected to MiniMON :\n"); | |
425 | printf (" Debugcore version %d.%d\n", | |
426 | 0x0f & (target_config.version >> 4), | |
427 | 0x0f & (target_config.version)); | |
428 | printf (" Configuration version %d.%d\n", | |
429 | 0x0f & (target_config.version >> 12), | |
430 | 0x0f & (target_config.version >> 8)); | |
431 | printf (" Message system version %d.%d\n", | |
432 | 0x0f & (target_config.version >> 20), | |
433 | 0x0f & (target_config.version >> 16)); | |
434 | printf (" Communication driver version %d.%d\n", | |
435 | 0x0f & (target_config.version >> 28), | |
436 | 0x0f & (target_config.version >> 24)); | |
437 | } | |
c906108c SS |
438 | |
439 | /* Leave the target running... | |
440 | * The above message stopped the target in the dbg core (MiniMon), | |
441 | * so restart the target out of MiniMon, | |
442 | */ | |
443 | out_msg_buf->go_msg.code = GO; | |
444 | out_msg_buf->go_msg.length = 0; | |
c5aa993b | 445 | msg_send_serial (out_msg_buf); |
c906108c SS |
446 | /* No message to expect after a GO */ |
447 | } | |
448 | ||
449 | /**************************************************************** REMOTE_CLOSE | |
450 | ** Close the open connection to the minimon debugger. | |
451 | Use this when you want to detach and do something else | |
452 | with your gdb. */ | |
453 | static void | |
fba45db2 KB |
454 | mm_close ( /*FIXME: how is quitting used */ |
455 | int quitting) | |
c906108c SS |
456 | { |
457 | if (mm_desc < 0) | |
458 | error ("Can't close remote connection: not debugging remotely."); | |
459 | ||
460 | /* We should never get here if there isn't something valid in | |
461 | mm_desc and mm_stream. | |
462 | ||
463 | Due to a bug in Unix, fclose closes not only the stdio stream, | |
464 | but also the file descriptor. So we don't actually close | |
465 | mm_desc. */ | |
c5aa993b JM |
466 | DRAIN_INPUT (); |
467 | fclose (mm_stream); | |
c906108c SS |
468 | /* close (mm_desc); */ |
469 | ||
470 | /* Do not try to close mm_desc again, later in the program. */ | |
471 | mm_stream = NULL; | |
472 | mm_desc = -1; | |
473 | ||
474 | #if defined (LOG_FILE) | |
475 | if (ferror (log_file)) | |
476 | printf ("Error writing log file.\n"); | |
477 | if (fclose (log_file) != 0) | |
478 | printf ("Error closing log file.\n"); | |
479 | #endif | |
480 | ||
481 | printf ("Ending remote debugging\n"); | |
c5aa993b | 482 | } |
c906108c SS |
483 | |
484 | /************************************************************* REMOTE_ATACH */ | |
485 | /* Attach to a program that is already loaded and running | |
486 | * Upon exiting the process's execution is stopped. | |
487 | */ | |
488 | static void | |
fba45db2 | 489 | mm_attach (char *args, int from_tty) |
c906108c SS |
490 | { |
491 | ||
492 | if (!mm_stream) | |
c5aa993b JM |
493 | error ("MiniMon not opened yet, use the 'target minimon' command.\n"); |
494 | ||
c906108c | 495 | if (from_tty) |
c5aa993b | 496 | printf ("Attaching to remote program %s...\n", prog_name); |
c906108c SS |
497 | |
498 | /* Make sure the target is currently running, it is supposed to be. */ | |
499 | /* FIXME: is it ok to send MiniMon a BREAK if it is already stopped in | |
c5aa993b | 500 | * the dbg core. If so, we don't need to send this GO. |
c906108c SS |
501 | */ |
502 | out_msg_buf->go_msg.code = GO; | |
503 | out_msg_buf->go_msg.length = 0; | |
c5aa993b JM |
504 | msg_send_serial (out_msg_buf); |
505 | sleep (2); /* At the worst it will stop, receive a message, continue */ | |
506 | ||
507 | /* Send the mm a break. */ | |
c906108c SS |
508 | out_msg_buf->break_msg.code = BREAK; |
509 | out_msg_buf->break_msg.length = 0; | |
c5aa993b | 510 | msg_send_serial (out_msg_buf); |
c906108c SS |
511 | } |
512 | /********************************************************** REMOTE_DETACH */ | |
513 | /* Terminate the open connection to the remote debugger. | |
514 | Use this when you want to detach and do something else | |
515 | with your gdb. Leave remote process running (with no breakpoints set). */ | |
516 | static void | |
fba45db2 | 517 | mm_detach (char *args, int from_tty) |
c906108c | 518 | { |
c5aa993b | 519 | remove_breakpoints (); /* Just in case there were any left in */ |
c906108c SS |
520 | out_msg_buf->go_msg.code = GO; |
521 | out_msg_buf->go_msg.length = 0; | |
c5aa993b JM |
522 | msg_send_serial (out_msg_buf); |
523 | pop_target (); /* calls mm_close to do the real work */ | |
c906108c SS |
524 | } |
525 | ||
526 | ||
527 | /*************************************************************** REMOTE_RESUME | |
528 | ** Tell the remote machine to resume. */ | |
529 | ||
530 | static void | |
fba45db2 | 531 | mm_resume (int pid, int step, enum target_signal sig) |
c906108c SS |
532 | { |
533 | if (sig != TARGET_SIGNAL_0) | |
534 | warning ("Can't send signals to a remote MiniMon system."); | |
535 | ||
c5aa993b JM |
536 | if (step) |
537 | { | |
538 | out_msg_buf->step_msg.code = STEP; | |
539 | out_msg_buf->step_msg.length = 1 * 4; | |
540 | out_msg_buf->step_msg.count = 1; /* step 1 instruction */ | |
541 | msg_send_serial (out_msg_buf); | |
542 | } | |
543 | else | |
544 | { | |
545 | out_msg_buf->go_msg.code = GO; | |
c906108c | 546 | out_msg_buf->go_msg.length = 0; |
c5aa993b JM |
547 | msg_send_serial (out_msg_buf); |
548 | } | |
c906108c SS |
549 | } |
550 | ||
551 | /***************************************************************** REMOTE_WAIT | |
552 | ** Wait until the remote machine stops, then return, | |
553 | storing status in STATUS just as `wait' would. */ | |
554 | ||
555 | static int | |
fba45db2 | 556 | mm_wait (struct target_waitstatus *status) |
c906108c SS |
557 | { |
558 | int i, result; | |
559 | int old_timeout = timeout; | |
560 | int old_immediate_quit = immediate_quit; | |
561 | ||
562 | status->kind = TARGET_WAITKIND_EXITED; | |
563 | status->value.integer = 0; | |
564 | ||
565 | /* wait for message to arrive. It should be: | |
c5aa993b JM |
566 | - A HIF service request. |
567 | - A HIF exit service request. | |
568 | - A CHANNEL0_ACK. | |
569 | - A CHANNEL1 request. | |
570 | - a debugcore HALT message. | |
571 | HIF services must be responded too, and while-looping continued. | |
572 | If the target stops executing, mm_wait() should return. | |
573 | */ | |
574 | timeout = 0; /* Wait indefinetly for a message */ | |
575 | immediate_quit = 1; /* Helps ability to QUIT */ | |
576 | while (1) | |
c906108c | 577 | { |
c5aa993b JM |
578 | while (msg_recv_serial (in_msg_buf)) |
579 | { | |
580 | QUIT; /* Let user quit if they want */ | |
581 | } | |
582 | switch (in_msg_buf->halt_msg.code) | |
583 | { | |
584 | case HIF_CALL: | |
585 | i = in_msg_buf->hif_call_rtn_msg.service_number; | |
586 | result = service_HIF (in_msg_buf); | |
587 | if (i == 1) /* EXIT */ | |
c906108c | 588 | goto exit; |
c5aa993b JM |
589 | if (result) |
590 | printf ("Warning: failure during HIF service %d\n", i); | |
591 | break; | |
592 | case CHANNEL0_ACK: | |
593 | service_HIF (in_msg_buf); | |
594 | break; | |
595 | case CHANNEL1: | |
596 | i = in_msg_buf->channel1_msg.length; | |
597 | in_msg_buf->channel1_msg.data[i] = '\0'; | |
598 | printf ("%s", in_msg_buf->channel1_msg.data); | |
599 | gdb_flush (gdb_stdout); | |
600 | /* Send CHANNEL1_ACK message */ | |
601 | out_msg_buf->channel1_ack_msg.code = CHANNEL1_ACK; | |
602 | out_msg_buf->channel1_ack_msg.length = 0; | |
603 | result = msg_send_serial (out_msg_buf); | |
604 | break; | |
605 | case HALT: | |
606 | goto halted; | |
607 | default: | |
608 | goto halted; | |
609 | } | |
c906108c | 610 | } |
c906108c SS |
611 | halted: |
612 | /* FIXME, these printfs should not be here. This is a source level | |
613 | debugger, guys! */ | |
c5aa993b | 614 | if (in_msg_buf->halt_msg.trap_number == 0) |
c906108c | 615 | { |
c5aa993b JM |
616 | printf ("Am290*0 received vector number %d (break point)\n", |
617 | in_msg_buf->halt_msg.trap_number); | |
618 | status->kind = TARGET_WAITKIND_STOPPED; | |
619 | status->value.sig = TARGET_SIGNAL_TRAP; | |
620 | } | |
621 | else if (in_msg_buf->halt_msg.trap_number == 1) | |
622 | { | |
623 | printf ("Am290*0 received vector number %d\n", | |
624 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
625 | status->kind = TARGET_WAITKIND_STOPPED; |
626 | status->value.sig = TARGET_SIGNAL_BUS; | |
627 | } | |
c5aa993b JM |
628 | else if (in_msg_buf->halt_msg.trap_number == 3 |
629 | || in_msg_buf->halt_msg.trap_number == 4) | |
630 | { | |
631 | printf ("Am290*0 received vector number %d\n", | |
632 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
633 | status->kind = TARGET_WAITKIND_STOPPED; |
634 | status->value.sig = TARGET_SIGNAL_FPE; | |
c5aa993b JM |
635 | } |
636 | else if (in_msg_buf->halt_msg.trap_number == 5) | |
637 | { | |
638 | printf ("Am290*0 received vector number %d\n", | |
639 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
640 | status->kind = TARGET_WAITKIND_STOPPED; |
641 | status->value.sig = TARGET_SIGNAL_ILL; | |
c5aa993b | 642 | } |
c906108c | 643 | else if (in_msg_buf->halt_msg.trap_number >= 6 |
c5aa993b JM |
644 | && in_msg_buf->halt_msg.trap_number <= 11) |
645 | { | |
646 | printf ("Am290*0 received vector number %d\n", | |
647 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
648 | status->kind = TARGET_WAITKIND_STOPPED; |
649 | status->value.sig = TARGET_SIGNAL_SEGV; | |
c5aa993b JM |
650 | } |
651 | else if (in_msg_buf->halt_msg.trap_number == 12 | |
652 | || in_msg_buf->halt_msg.trap_number == 13) | |
653 | { | |
654 | printf ("Am290*0 received vector number %d\n", | |
655 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
656 | status->kind = TARGET_WAITKIND_STOPPED; |
657 | status->value.sig = TARGET_SIGNAL_ILL; | |
c5aa993b JM |
658 | } |
659 | else if (in_msg_buf->halt_msg.trap_number == 14) | |
660 | { | |
661 | printf ("Am290*0 received vector number %d\n", | |
662 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
663 | status->kind = TARGET_WAITKIND_STOPPED; |
664 | status->value.sig = TARGET_SIGNAL_ALRM; | |
c5aa993b JM |
665 | } |
666 | else if (in_msg_buf->halt_msg.trap_number == 15) | |
c906108c SS |
667 | { |
668 | status->kind = TARGET_WAITKIND_STOPPED; | |
669 | status->value.sig = TARGET_SIGNAL_TRAP; | |
670 | } | |
671 | else if (in_msg_buf->halt_msg.trap_number >= 16 | |
c5aa993b JM |
672 | && in_msg_buf->halt_msg.trap_number <= 21) |
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_INT; | |
c5aa993b JM |
678 | } |
679 | else if (in_msg_buf->halt_msg.trap_number == 22) | |
680 | { | |
681 | printf ("Am290*0 received vector number %d\n", | |
682 | in_msg_buf->halt_msg.trap_number); | |
c906108c SS |
683 | status->kind = TARGET_WAITKIND_STOPPED; |
684 | status->value.sig = TARGET_SIGNAL_ILL; | |
c5aa993b JM |
685 | } /* BREAK message was sent */ |
686 | else if (in_msg_buf->halt_msg.trap_number == 75) | |
c906108c SS |
687 | { |
688 | status->kind = TARGET_WAITKIND_STOPPED; | |
689 | status->value.sig = TARGET_SIGNAL_TRAP; | |
690 | } | |
691 | else | |
c5aa993b | 692 | exit: |
c906108c SS |
693 | { |
694 | status->kind = TARGET_WAITKIND_EXITED; | |
695 | status->value.integer = 0; | |
696 | } | |
697 | ||
698 | timeout = old_timeout; /* Restore original timeout value */ | |
699 | immediate_quit = old_immediate_quit; | |
700 | return 0; | |
701 | } | |
702 | ||
703 | /******************************************************* REMOTE_FETCH_REGISTERS | |
704 | * Read a remote register 'regno'. | |
705 | * If regno==-1 then read all the registers. | |
706 | */ | |
c5aa993b | 707 | static void |
fba45db2 | 708 | mm_fetch_registers (int regno) |
c906108c SS |
709 | { |
710 | INT32 *data_p; | |
711 | ||
c5aa993b JM |
712 | if (regno >= 0) |
713 | { | |
714 | fetch_register (regno); | |
715 | return; | |
716 | } | |
c906108c SS |
717 | |
718 | /* Gr1/rsp */ | |
c5aa993b | 719 | out_msg_buf->read_req_msg.byte_count = 4 * 1; |
c906108c SS |
720 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; |
721 | out_msg_buf->read_req_msg.address = 1; | |
c5aa993b JM |
722 | msg_send_serial (out_msg_buf); |
723 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c | 724 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
c5aa993b | 725 | supply_register (GR1_REGNUM, data_p); |
c906108c SS |
726 | |
727 | #if defined(GR64_REGNUM) /* Read gr64-127 */ | |
c5aa993b JM |
728 | /* Global Registers gr64-gr95 */ |
729 | out_msg_buf->read_req_msg.code = READ_REQ; | |
730 | out_msg_buf->read_req_msg.length = 4 * 3; | |
731 | out_msg_buf->read_req_msg.byte_count = 4 * 32; | |
c906108c SS |
732 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; |
733 | out_msg_buf->read_req_msg.address = 64; | |
c5aa993b JM |
734 | msg_send_serial (out_msg_buf); |
735 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
736 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
737 | ||
c5aa993b JM |
738 | for (regno = GR64_REGNUM; regno < GR64_REGNUM + 32; regno++) |
739 | { | |
c906108c | 740 | supply_register (regno, data_p++); |
c5aa993b JM |
741 | } |
742 | #endif /* GR64_REGNUM */ | |
c906108c | 743 | |
c5aa993b JM |
744 | /* Global Registers gr96-gr127 */ |
745 | out_msg_buf->read_req_msg.code = READ_REQ; | |
746 | out_msg_buf->read_req_msg.length = 4 * 3; | |
c906108c SS |
747 | out_msg_buf->read_req_msg.byte_count = 4 * 32; |
748 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
749 | out_msg_buf->read_req_msg.address = 96; | |
c5aa993b JM |
750 | msg_send_serial (out_msg_buf); |
751 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
752 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
753 | ||
c5aa993b JM |
754 | for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) |
755 | { | |
c906108c | 756 | supply_register (regno, data_p++); |
c5aa993b | 757 | } |
c906108c | 758 | |
c5aa993b | 759 | /* Local Registers */ |
c906108c SS |
760 | out_msg_buf->read_req_msg.byte_count = 4 * (128); |
761 | out_msg_buf->read_req_msg.memory_space = LOCAL_REG; | |
762 | out_msg_buf->read_req_msg.address = 0; | |
c5aa993b JM |
763 | msg_send_serial (out_msg_buf); |
764 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
765 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
766 | ||
c5aa993b JM |
767 | for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) |
768 | { | |
c906108c | 769 | supply_register (regno, data_p++); |
c5aa993b | 770 | } |
c906108c | 771 | |
c5aa993b JM |
772 | /* Protected Special Registers */ |
773 | out_msg_buf->read_req_msg.byte_count = 4 * 15; | |
c906108c SS |
774 | out_msg_buf->read_req_msg.memory_space = SPECIAL_REG; |
775 | out_msg_buf->read_req_msg.address = 0; | |
c5aa993b JM |
776 | msg_send_serial (out_msg_buf); |
777 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
778 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
779 | ||
c5aa993b JM |
780 | for (regno = 0; regno <= 14; regno++) |
781 | { | |
782 | supply_register (SR_REGNUM (regno), data_p++); | |
783 | } | |
784 | if (USE_SHADOW_PC) | |
785 | { /* Let regno_to_srnum() handle the register number */ | |
786 | fetch_register (NPC_REGNUM); | |
787 | fetch_register (PC_REGNUM); | |
788 | fetch_register (PC2_REGNUM); | |
789 | } | |
c906108c | 790 | |
c5aa993b JM |
791 | /* Unprotected Special Registers */ |
792 | out_msg_buf->read_req_msg.byte_count = 4 * 8; | |
c906108c SS |
793 | out_msg_buf->read_req_msg.memory_space = SPECIAL_REG; |
794 | out_msg_buf->read_req_msg.address = 128; | |
c5aa993b JM |
795 | msg_send_serial (out_msg_buf); |
796 | expect_msg (READ_ACK, in_msg_buf, 1); | |
c906108c SS |
797 | data_p = &(in_msg_buf->read_r_ack_msg.data[0]); |
798 | ||
c5aa993b JM |
799 | for (regno = 128; regno <= 135; regno++) |
800 | { | |
801 | supply_register (SR_REGNUM (regno), data_p++); | |
802 | } | |
c906108c SS |
803 | |
804 | /* There doesn't seem to be any way to get these. */ | |
805 | { | |
806 | int val = -1; | |
807 | supply_register (FPE_REGNUM, &val); | |
808 | supply_register (INTE_REGNUM, &val); | |
809 | supply_register (FPS_REGNUM, &val); | |
810 | supply_register (EXO_REGNUM, &val); | |
811 | } | |
812 | } | |
813 | ||
814 | ||
815 | /****************************************************** REMOTE_STORE_REGISTERS | |
816 | * Store register regno into the target. | |
817 | * If regno==-1 then store all the registers. | |
818 | * Result is 0 for success, -1 for failure. | |
819 | */ | |
820 | ||
821 | static void | |
fba45db2 | 822 | mm_store_registers (int regno) |
c906108c SS |
823 | { |
824 | int result; | |
c5aa993b JM |
825 | |
826 | if (regno >= 0) | |
827 | { | |
828 | store_register (regno); | |
829 | return; | |
830 | } | |
c906108c SS |
831 | |
832 | result = 0; | |
833 | ||
c5aa993b | 834 | out_msg_buf->write_r_msg.code = WRITE_REQ; |
c906108c SS |
835 | |
836 | /* Gr1/rsp */ | |
c5aa993b JM |
837 | out_msg_buf->write_r_msg.byte_count = 4 * 1; |
838 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c SS |
839 | out_msg_buf->write_r_msg.memory_space = GLOBAL_REG; |
840 | out_msg_buf->write_r_msg.address = 1; | |
841 | out_msg_buf->write_r_msg.data[0] = read_register (GR1_REGNUM); | |
842 | ||
c5aa993b JM |
843 | msg_send_serial (out_msg_buf); |
844 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
845 | { | |
846 | result = -1; | |
847 | } | |
c906108c SS |
848 | |
849 | #if defined(GR64_REGNUM) | |
850 | /* Global registers gr64-gr95 */ | |
c5aa993b JM |
851 | out_msg_buf->write_r_msg.byte_count = 4 * (32); |
852 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c SS |
853 | out_msg_buf->write_r_msg.address = 64; |
854 | ||
c5aa993b | 855 | for (regno = GR64_REGNUM; regno < GR64_REGNUM + 32; regno++) |
c906108c | 856 | { |
c5aa993b | 857 | out_msg_buf->write_r_msg.data[regno - GR64_REGNUM] = read_register (regno); |
c906108c | 858 | } |
c5aa993b JM |
859 | msg_send_serial (out_msg_buf); |
860 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
861 | { | |
862 | result = -1; | |
863 | } | |
864 | #endif /* GR64_REGNUM */ | |
c906108c SS |
865 | |
866 | /* Global registers gr96-gr127 */ | |
c5aa993b JM |
867 | out_msg_buf->write_r_msg.byte_count = 4 * (32); |
868 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 869 | out_msg_buf->write_r_msg.address = 96; |
c5aa993b | 870 | for (regno = GR96_REGNUM; regno < GR96_REGNUM + 32; regno++) |
c906108c | 871 | { |
c5aa993b JM |
872 | out_msg_buf->write_r_msg.data[regno - GR96_REGNUM] = read_register (regno); |
873 | } | |
874 | msg_send_serial (out_msg_buf); | |
875 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
876 | { | |
877 | result = -1; | |
c906108c | 878 | } |
c906108c SS |
879 | |
880 | /* Local Registers */ | |
881 | out_msg_buf->write_r_msg.memory_space = LOCAL_REG; | |
c5aa993b JM |
882 | out_msg_buf->write_r_msg.byte_count = 4 * 128; |
883 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c SS |
884 | out_msg_buf->write_r_msg.address = 0; |
885 | ||
c5aa993b | 886 | for (regno = LR0_REGNUM; regno < LR0_REGNUM + 128; regno++) |
c906108c | 887 | { |
c5aa993b JM |
888 | out_msg_buf->write_r_msg.data[regno - LR0_REGNUM] = read_register (regno); |
889 | } | |
890 | msg_send_serial (out_msg_buf); | |
891 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
892 | { | |
893 | result = -1; | |
c906108c | 894 | } |
c906108c | 895 | |
c5aa993b | 896 | /* Protected Special Registers */ |
c906108c SS |
897 | /* VAB through TMR */ |
898 | out_msg_buf->write_r_msg.memory_space = SPECIAL_REG; | |
c5aa993b JM |
899 | out_msg_buf->write_r_msg.byte_count = 4 * 10; |
900 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 901 | out_msg_buf->write_r_msg.address = 0; |
c5aa993b JM |
902 | for (regno = 0; regno <= 9; regno++) /* VAB through TMR */ |
903 | out_msg_buf->write_r_msg.data[regno] = read_register (SR_REGNUM (regno)); | |
904 | msg_send_serial (out_msg_buf); | |
905 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
906 | { | |
907 | result = -1; | |
908 | } | |
c906108c SS |
909 | |
910 | /* PC0, PC1, PC2 possibly as shadow registers */ | |
c5aa993b JM |
911 | out_msg_buf->write_r_msg.byte_count = 4 * 3; |
912 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
913 | for (regno = 10; regno <= 12; regno++) /* LRU and MMU */ | |
914 | out_msg_buf->write_r_msg.data[regno - 10] = read_register (SR_REGNUM (regno)); | |
915 | if (USE_SHADOW_PC) | |
c906108c | 916 | out_msg_buf->write_r_msg.address = 20; /* SPC0 */ |
c5aa993b | 917 | else |
c906108c | 918 | out_msg_buf->write_r_msg.address = 10; /* PC0 */ |
c5aa993b JM |
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 | /* LRU and MMU */ | |
c5aa993b JM |
926 | out_msg_buf->write_r_msg.byte_count = 4 * 2; |
927 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 928 | out_msg_buf->write_r_msg.address = 13; |
c5aa993b JM |
929 | for (regno = 13; regno <= 14; regno++) /* LRU and MMU */ |
930 | out_msg_buf->write_r_msg.data[regno - 13] = read_register (SR_REGNUM (regno)); | |
931 | msg_send_serial (out_msg_buf); | |
932 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
933 | { | |
934 | result = -1; | |
935 | } | |
c906108c | 936 | |
c5aa993b JM |
937 | /* Unprotected Special Registers */ |
938 | out_msg_buf->write_r_msg.byte_count = 4 * 8; | |
939 | out_msg_buf->write_r_msg.length = 3 * 4 + out_msg_buf->write_r_msg.byte_count; | |
c906108c | 940 | out_msg_buf->write_r_msg.address = 128; |
c5aa993b JM |
941 | for (regno = 128; regno <= 135; regno++) |
942 | out_msg_buf->write_r_msg.data[regno - 128] = read_register (SR_REGNUM (regno)); | |
943 | msg_send_serial (out_msg_buf); | |
944 | if (!expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
945 | { | |
946 | result = -1; | |
947 | } | |
948 | ||
c906108c SS |
949 | registers_changed (); |
950 | } | |
951 | ||
952 | /*************************************************** REMOTE_PREPARE_TO_STORE */ | |
953 | /* Get ready to modify the registers array. On machines which store | |
954 | individual registers, this doesn't need to do anything. On machines | |
955 | which store all the registers in one fell swoop, this makes sure | |
956 | that registers contains all the registers from the program being | |
957 | debugged. */ | |
958 | ||
959 | static void | |
fba45db2 | 960 | mm_prepare_to_store (void) |
c906108c SS |
961 | { |
962 | /* Do nothing, since we can store individual regs */ | |
963 | } | |
964 | ||
965 | /******************************************************* REMOTE_XFER_MEMORY */ | |
966 | static CORE_ADDR | |
fba45db2 | 967 | translate_addr (CORE_ADDR addr) |
c906108c SS |
968 | { |
969 | #if defined(KERNEL_DEBUGGING) | |
c5aa993b JM |
970 | /* Check for a virtual address in the kernel */ |
971 | /* Assume physical address of ublock is in paddr_u register */ | |
972 | /* FIXME: doesn't work for user virtual addresses */ | |
973 | if (addr >= UVADDR) | |
974 | { | |
975 | /* PADDR_U register holds the physical address of the ublock */ | |
976 | CORE_ADDR i = (CORE_ADDR) read_register (PADDR_U_REGNUM); | |
977 | return (i + addr - (CORE_ADDR) UVADDR); | |
978 | } | |
979 | else | |
980 | { | |
981 | return (addr); | |
982 | } | |
c906108c | 983 | #else |
c5aa993b | 984 | return (addr); |
c906108c SS |
985 | #endif |
986 | } | |
987 | ||
988 | /******************************************************* REMOTE_FILES_INFO */ | |
989 | static void | |
fba45db2 | 990 | mm_files_info (void) |
c906108c SS |
991 | { |
992 | printf ("\tAttached to %s at %d baud and running program %s.\n", | |
c5aa993b | 993 | dev_name, baudrate, prog_name); |
c906108c SS |
994 | } |
995 | ||
996 | /************************************************* REMOTE_INSERT_BREAKPOINT */ | |
997 | static int | |
fba45db2 | 998 | mm_insert_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c SS |
999 | { |
1000 | out_msg_buf->bkpt_set_msg.code = BKPT_SET; | |
c5aa993b | 1001 | out_msg_buf->bkpt_set_msg.length = 4 * 4; |
c906108c SS |
1002 | out_msg_buf->bkpt_set_msg.memory_space = I_MEM; |
1003 | out_msg_buf->bkpt_set_msg.bkpt_addr = (ADDR32) addr; | |
1004 | out_msg_buf->bkpt_set_msg.pass_count = 1; | |
1005 | out_msg_buf->bkpt_set_msg.bkpt_type = -1; /* use illop for 29000 */ | |
c5aa993b JM |
1006 | msg_send_serial (out_msg_buf); |
1007 | if (expect_msg (BKPT_SET_ACK, in_msg_buf, 1)) | |
1008 | { | |
1009 | return 0; /* Success */ | |
1010 | } | |
1011 | else | |
1012 | { | |
1013 | return 1; /* Failure */ | |
1014 | } | |
c906108c SS |
1015 | } |
1016 | ||
1017 | /************************************************* REMOTE_DELETE_BREAKPOINT */ | |
1018 | static int | |
fba45db2 | 1019 | mm_remove_breakpoint (CORE_ADDR addr, char *contents_cache) |
c906108c SS |
1020 | { |
1021 | out_msg_buf->bkpt_rm_msg.code = BKPT_RM; | |
c5aa993b | 1022 | out_msg_buf->bkpt_rm_msg.length = 4 * 3; |
c906108c SS |
1023 | out_msg_buf->bkpt_rm_msg.memory_space = I_MEM; |
1024 | out_msg_buf->bkpt_rm_msg.bkpt_addr = (ADDR32) addr; | |
c5aa993b JM |
1025 | msg_send_serial (out_msg_buf); |
1026 | if (expect_msg (BKPT_RM_ACK, in_msg_buf, 1)) | |
1027 | { | |
1028 | return 0; /* Success */ | |
1029 | } | |
1030 | else | |
1031 | { | |
1032 | return 1; /* Failure */ | |
1033 | } | |
c906108c SS |
1034 | } |
1035 | ||
1036 | ||
1037 | /******************************************************* REMOTE_KILL */ | |
1038 | static void | |
fba45db2 | 1039 | mm_kill (char *arg, int from_tty) |
c906108c | 1040 | { |
c5aa993b | 1041 | char buf[4]; |
c906108c SS |
1042 | |
1043 | #if defined(KERNEL_DEBUGGING) | |
c5aa993b JM |
1044 | /* We don't ever kill the kernel */ |
1045 | if (from_tty) | |
1046 | { | |
1047 | printf ("Kernel not killed, but left in current state.\n"); | |
1048 | printf ("Use detach to leave kernel running.\n"); | |
1049 | } | |
c906108c | 1050 | #else |
c5aa993b JM |
1051 | out_msg_buf->break_msg.code = BREAK; |
1052 | out_msg_buf->bkpt_set_msg.length = 4 * 0; | |
1053 | expect_msg (HALT, in_msg_buf, from_tty); | |
1054 | if (from_tty) | |
1055 | { | |
1056 | printf ("Target has been stopped."); | |
1057 | printf ("Would you like to do a hardware reset (y/n) [n] "); | |
1058 | fgets (buf, 3, stdin); | |
1059 | if (buf[0] == 'y') | |
1060 | { | |
1061 | out_msg_buf->reset_msg.code = RESET; | |
1062 | out_msg_buf->bkpt_set_msg.length = 4 * 0; | |
1063 | expect_msg (RESET_ACK, in_msg_buf, from_tty); | |
1064 | printf ("Target has been reset."); | |
c906108c | 1065 | } |
c5aa993b JM |
1066 | } |
1067 | pop_target (); | |
1068 | #endif | |
c906108c SS |
1069 | } |
1070 | ||
1071 | ||
1072 | ||
1073 | /***************************************************************************/ | |
1074 | /* | |
1075 | * Load a program into the target. | |
1076 | */ | |
1077 | static void | |
fba45db2 | 1078 | mm_load (char *arg_string, int from_tty) |
c906108c SS |
1079 | { |
1080 | dont_repeat (); | |
1081 | ||
1082 | #if defined(KERNEL_DEBUGGING) | |
c5aa993b | 1083 | printf ("The kernel had better be loaded already! Loading not done.\n"); |
c906108c SS |
1084 | #else |
1085 | if (arg_string == 0) | |
1086 | error ("The load command takes a file name"); | |
1087 | ||
1088 | arg_string = tilde_expand (arg_string); | |
b8c9b27d | 1089 | make_cleanup (xfree, arg_string); |
c906108c SS |
1090 | QUIT; |
1091 | immediate_quit++; | |
c5aa993b | 1092 | error ("File loading is not yet supported for MiniMon."); |
c906108c SS |
1093 | /* FIXME, code to load your file here... */ |
1094 | /* You may need to do an init_target_mm() */ | |
1095 | /* init_target_mm(?,?,?,?,?,?,?,?); */ | |
1096 | immediate_quit--; | |
2df3850c | 1097 | /* symbol_file_add (arg_string, from_tty, text_addr, 0, 0); */ |
c906108c SS |
1098 | #endif |
1099 | ||
1100 | } | |
1101 | ||
1102 | /************************************************ REMOTE_WRITE_INFERIOR_MEMORY | |
1103 | ** Copy LEN bytes of data from debugger memory at MYADDR | |
1104 | to inferior's memory at MEMADDR. Returns number of bytes written. */ | |
1105 | static int | |
fba45db2 | 1106 | mm_write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1107 | { |
c5aa993b JM |
1108 | int i, nwritten; |
1109 | ||
1110 | out_msg_buf->write_req_msg.code = WRITE_REQ; | |
1111 | out_msg_buf->write_req_msg.memory_space = mm_memory_space (memaddr); | |
1112 | ||
1113 | nwritten = 0; | |
1114 | while (nwritten < len) | |
1115 | { | |
1116 | int num_to_write = len - nwritten; | |
1117 | if (num_to_write > MAXDATA) | |
1118 | num_to_write = MAXDATA; | |
1119 | for (i = 0; i < num_to_write; i++) | |
1120 | out_msg_buf->write_req_msg.data[i] = myaddr[i + nwritten]; | |
1121 | out_msg_buf->write_req_msg.byte_count = num_to_write; | |
1122 | out_msg_buf->write_req_msg.length = 3 * 4 + num_to_write; | |
1123 | out_msg_buf->write_req_msg.address = memaddr + nwritten; | |
1124 | msg_send_serial (out_msg_buf); | |
1125 | ||
1126 | if (expect_msg (WRITE_ACK, in_msg_buf, 1)) | |
1127 | { | |
1128 | nwritten += in_msg_buf->write_ack_msg.byte_count; | |
1129 | } | |
1130 | else | |
1131 | { | |
1132 | break; | |
1133 | } | |
1134 | } | |
1135 | return (nwritten); | |
c906108c SS |
1136 | } |
1137 | ||
1138 | /************************************************* REMOTE_READ_INFERIOR_MEMORY | |
1139 | ** Read LEN bytes from inferior memory at MEMADDR. Put the result | |
1140 | at debugger address MYADDR. Returns number of bytes read. */ | |
1141 | static int | |
fba45db2 | 1142 | mm_read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1143 | { |
c5aa993b JM |
1144 | int i, nread; |
1145 | ||
1146 | out_msg_buf->read_req_msg.code = READ_REQ; | |
1147 | out_msg_buf->read_req_msg.memory_space = mm_memory_space (memaddr); | |
1148 | ||
1149 | nread = 0; | |
1150 | while (nread < len) | |
1151 | { | |
1152 | int num_to_read = (len - nread); | |
1153 | if (num_to_read > MAXDATA) | |
1154 | num_to_read = MAXDATA; | |
1155 | out_msg_buf->read_req_msg.byte_count = num_to_read; | |
1156 | out_msg_buf->read_req_msg.length = 3 * 4 + num_to_read; | |
1157 | out_msg_buf->read_req_msg.address = memaddr + nread; | |
1158 | msg_send_serial (out_msg_buf); | |
1159 | ||
1160 | if (expect_msg (READ_ACK, in_msg_buf, 1)) | |
1161 | { | |
1162 | for (i = 0; i < in_msg_buf->read_ack_msg.byte_count; i++) | |
1163 | myaddr[i + nread] = in_msg_buf->read_ack_msg.data[i]; | |
1164 | nread += in_msg_buf->read_ack_msg.byte_count; | |
1165 | } | |
1166 | else | |
1167 | { | |
1168 | break; | |
1169 | } | |
1170 | } | |
1171 | return (nread); | |
c906108c SS |
1172 | } |
1173 | ||
1174 | /* FIXME! Merge these two. */ | |
1175 | static int | |
fba45db2 | 1176 | mm_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len, int write) |
c906108c SS |
1177 | { |
1178 | ||
c5aa993b | 1179 | memaddr = translate_addr (memaddr); |
c906108c SS |
1180 | |
1181 | if (write) | |
1182 | return mm_write_inferior_memory (memaddr, myaddr, len); | |
1183 | else | |
1184 | return mm_read_inferior_memory (memaddr, myaddr, len); | |
1185 | } | |
1186 | ||
1187 | ||
1188 | /********************************************************** MSG_SEND_SERIAL | |
1189 | ** This function is used to send a message over the | |
1190 | ** serial line. | |
1191 | ** | |
1192 | ** If the message is successfully sent, a zero is | |
1193 | ** returned. If the message was not sendable, a -1 | |
1194 | ** is returned. This function blocks. That is, it | |
1195 | ** does not return until the message is completely | |
1196 | ** sent, or until an error is encountered. | |
1197 | ** | |
1198 | */ | |
1199 | ||
1200 | int | |
fba45db2 | 1201 | msg_send_serial (union msg_t *msg_ptr) |
c906108c | 1202 | { |
c5aa993b JM |
1203 | INT32 message_size; |
1204 | int byte_count; | |
1205 | int result; | |
1206 | char c; | |
1207 | ||
1208 | /* Send message header */ | |
1209 | byte_count = 0; | |
1210 | message_size = msg_ptr->generic_msg.length + (2 * sizeof (INT32)); | |
1211 | do | |
1212 | { | |
1213 | c = *((char *) msg_ptr + byte_count); | |
1214 | result = write (mm_desc, &c, 1); | |
1215 | if (result == 1) | |
1216 | { | |
1217 | byte_count = byte_count + 1; | |
1218 | } | |
1219 | } | |
1220 | while ((byte_count < message_size)); | |
1221 | ||
1222 | return (0); | |
1223 | } /* end msg_send_serial() */ | |
c906108c SS |
1224 | |
1225 | /********************************************************** MSG_RECV_SERIAL | |
1226 | ** This function is used to receive a message over a | |
1227 | ** serial line. | |
1228 | ** | |
1229 | ** If the message is waiting in the buffer, a zero is | |
1230 | ** returned and the buffer pointed to by msg_ptr is filled | |
1231 | ** in. If no message was available, a -1 is returned. | |
1232 | ** If timeout==0, wait indefinetly for a character. | |
1233 | ** | |
1234 | */ | |
1235 | ||
1236 | int | |
fba45db2 | 1237 | msg_recv_serial (union msg_t *msg_ptr) |
c906108c | 1238 | { |
c5aa993b JM |
1239 | static INT32 length = 0; |
1240 | static INT32 byte_count = 0; | |
1241 | int result; | |
1242 | char c; | |
1243 | if (msg_ptr == 0) /* re-sync request */ | |
1244 | { | |
1245 | length = 0; | |
1246 | byte_count = 0; | |
c906108c | 1247 | #ifdef HAVE_TERMIO |
c5aa993b JM |
1248 | /* The timeout here is the prevailing timeout set with VTIME */ |
1249 | ->"timeout==0 semantics not supported" | |
1250 | read (mm_desc, in_buf, BUFER_SIZE); | |
c906108c | 1251 | #else |
c5aa993b JM |
1252 | alarm (1); |
1253 | read (mm_desc, in_buf, BUFER_SIZE); | |
1254 | alarm (0); | |
c906108c | 1255 | #endif |
c5aa993b JM |
1256 | return (0); |
1257 | } | |
1258 | /* Receive message */ | |
c906108c SS |
1259 | #ifdef HAVE_TERMIO |
1260 | /* Timeout==0, help support the mm_wait() routine */ | |
c5aa993b JM |
1261 | ->"timeout==0 semantics not supported (and its nice if they are)" |
1262 | result = read (mm_desc, &c, 1); | |
c906108c | 1263 | #else |
c5aa993b JM |
1264 | alarm (timeout); |
1265 | result = read (mm_desc, &c, 1); | |
c906108c SS |
1266 | alarm (0); |
1267 | #endif | |
c5aa993b JM |
1268 | if (result < 0) |
1269 | { | |
1270 | if (errno == EINTR) | |
1271 | { | |
1272 | error ("Timeout reading from remote system."); | |
1273 | } | |
1274 | else | |
c906108c | 1275 | perror_with_name ("remote"); |
c5aa993b JM |
1276 | } |
1277 | else if (result == 1) | |
1278 | { | |
1279 | *((char *) msg_ptr + byte_count) = c; | |
c906108c | 1280 | byte_count = byte_count + 1; |
c5aa993b | 1281 | } |
c906108c | 1282 | |
c5aa993b JM |
1283 | /* Message header received. Save message length. */ |
1284 | if (byte_count == (2 * sizeof (INT32))) | |
1285 | length = msg_ptr->generic_msg.length; | |
c906108c | 1286 | |
c5aa993b JM |
1287 | if (byte_count >= (length + (2 * sizeof (INT32)))) |
1288 | { | |
c906108c SS |
1289 | /* Message received */ |
1290 | byte_count = 0; | |
c5aa993b JM |
1291 | return (0); |
1292 | } | |
1293 | else | |
1294 | return (-1); | |
c906108c | 1295 | |
c5aa993b | 1296 | } /* end msg_recv_serial() */ |
c906108c SS |
1297 | |
1298 | /********************************************************************* KBD_RAW | |
1299 | ** This function is used to put the keyboard in "raw" | |
1300 | ** mode for BSD Unix. The original status is saved | |
1301 | ** so that it may be restored later. | |
1302 | */ | |
1303 | TERMINAL kbd_tbuf; | |
1304 | ||
1305 | int | |
fba45db2 | 1306 | kbd_raw (void) |
c5aa993b JM |
1307 | { |
1308 | int result; | |
1309 | TERMINAL tbuf; | |
c906108c | 1310 | |
c5aa993b | 1311 | /* Get keyboard termio (to save to restore original modes) */ |
c906108c | 1312 | #ifdef HAVE_TERMIO |
c5aa993b | 1313 | result = ioctl (0, TCGETA, &kbd_tbuf); |
c906108c | 1314 | #else |
c5aa993b | 1315 | result = ioctl (0, TIOCGETP, &kbd_tbuf); |
c906108c | 1316 | #endif |
c5aa993b JM |
1317 | if (result == -1) |
1318 | return (errno); | |
c906108c | 1319 | |
c5aa993b | 1320 | /* Get keyboard TERMINAL (for modification) */ |
c906108c | 1321 | #ifdef HAVE_TERMIO |
c5aa993b | 1322 | result = ioctl (0, TCGETA, &tbuf); |
c906108c | 1323 | #else |
c5aa993b | 1324 | result = ioctl (0, TIOCGETP, &tbuf); |
c906108c | 1325 | #endif |
c5aa993b JM |
1326 | if (result == -1) |
1327 | return (errno); | |
c906108c | 1328 | |
c5aa993b | 1329 | /* Set up new parameters */ |
c906108c | 1330 | #ifdef HAVE_TERMIO |
c5aa993b JM |
1331 | tbuf.c_iflag = tbuf.c_iflag & |
1332 | ~(INLCR | ICRNL | IUCLC | ISTRIP | IXON | BRKINT); | |
1333 | tbuf.c_lflag = tbuf.c_lflag & ~(ICANON | ISIG | ECHO); | |
1334 | tbuf.c_cc[4] = 0; /* MIN */ | |
1335 | tbuf.c_cc[5] = 0; /* TIME */ | |
c906108c | 1336 | #else |
c5aa993b JM |
1337 | /* FIXME: not sure if this is correct (matches HAVE_TERMIO). */ |
1338 | tbuf.sg_flags |= RAW; | |
1339 | tbuf.sg_flags |= ANYP; | |
1340 | tbuf.sg_flags &= ~ECHO; | |
c906108c SS |
1341 | #endif |
1342 | ||
c5aa993b | 1343 | /* Set keyboard termio to new mode (RAW) */ |
c906108c | 1344 | #ifdef HAVE_TERMIO |
c5aa993b | 1345 | result = ioctl (0, TCSETAF, &tbuf); |
c906108c | 1346 | #else |
c5aa993b JM |
1347 | result = ioctl (0, TIOCSETP, &tbuf); |
1348 | #endif | |
1349 | if (result == -1) | |
1350 | return (errno); | |
c906108c | 1351 | |
c5aa993b JM |
1352 | return (0); |
1353 | } /* end kbd_raw() */ | |
c906108c SS |
1354 | |
1355 | ||
1356 | ||
1357 | /***************************************************************** KBD_RESTORE | |
1358 | ** This function is used to put the keyboard back in the | |
1359 | ** mode it was in before kbk_raw was called. Note that | |
1360 | ** kbk_raw() must have been called at least once before | |
1361 | ** kbd_restore() is called. | |
1362 | */ | |
1363 | ||
1364 | int | |
fba45db2 | 1365 | kbd_restore (void) |
c5aa993b JM |
1366 | { |
1367 | int result; | |
c906108c | 1368 | |
c5aa993b | 1369 | /* Set keyboard termio to original mode */ |
c906108c | 1370 | #ifdef HAVE_TERMIO |
c5aa993b | 1371 | result = ioctl (0, TCSETAF, &kbd_tbuf); |
c906108c | 1372 | #else |
c5aa993b | 1373 | result = ioctl (0, TIOCGETP, &kbd_tbuf); |
c906108c SS |
1374 | #endif |
1375 | ||
c5aa993b JM |
1376 | if (result == -1) |
1377 | return (errno); | |
c906108c | 1378 | |
c5aa993b JM |
1379 | return (0); |
1380 | } /* end kbd_cooked() */ | |
c906108c SS |
1381 | |
1382 | ||
c5aa993b | 1383 | /*****************************************************************************/ |
c906108c SS |
1384 | /* Fetch a single register indicatated by 'regno'. |
1385 | * Returns 0/-1 on success/failure. | |
1386 | */ | |
1387 | static int | |
fba45db2 | 1388 | fetch_register (int regno) |
c906108c | 1389 | { |
c5aa993b JM |
1390 | int result; |
1391 | out_msg_buf->read_req_msg.code = READ_REQ; | |
1392 | out_msg_buf->read_req_msg.length = 4 * 3; | |
c906108c SS |
1393 | out_msg_buf->read_req_msg.byte_count = 4; |
1394 | ||
1395 | if (regno == GR1_REGNUM) | |
c5aa993b JM |
1396 | { |
1397 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
1398 | out_msg_buf->read_req_msg.address = 1; | |
1399 | } | |
c906108c | 1400 | else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32) |
c5aa993b JM |
1401 | { |
1402 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
1403 | out_msg_buf->read_req_msg.address = (regno - GR96_REGNUM) + 96; | |
1404 | } | |
c906108c | 1405 | #if defined(GR64_REGNUM) |
c5aa993b JM |
1406 | else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32) |
1407 | { | |
1408 | out_msg_buf->read_req_msg.memory_space = GLOBAL_REG; | |
1409 | out_msg_buf->read_req_msg.address = (regno - GR64_REGNUM) + 64; | |
1410 | } | |
1411 | #endif /* GR64_REGNUM */ | |
c906108c | 1412 | else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128) |
c5aa993b JM |
1413 | { |
1414 | out_msg_buf->read_req_msg.memory_space = LOCAL_REG; | |
1415 | out_msg_buf->read_req_msg.address = (regno - LR0_REGNUM); | |
1416 | } | |
1417 | else if (regno >= FPE_REGNUM && regno <= EXO_REGNUM) | |
1418 | { | |
1419 | int val = -1; | |
1420 | supply_register (160 + (regno - FPE_REGNUM), &val); | |
1421 | return 0; /* Pretend Success */ | |
1422 | } | |
1423 | else | |
1424 | { | |
1425 | out_msg_buf->read_req_msg.memory_space = SPECIAL_REG; | |
1426 | out_msg_buf->read_req_msg.address = regnum_to_srnum (regno); | |
1427 | } | |
1428 | ||
1429 | msg_send_serial (out_msg_buf); | |
1430 | ||
1431 | if (expect_msg (READ_ACK, in_msg_buf, 1)) | |
1432 | { | |
1433 | supply_register (regno, &(in_msg_buf->read_r_ack_msg.data[0])); | |
1434 | result = 0; | |
1435 | } | |
1436 | else | |
1437 | { | |
1438 | result = -1; | |
1439 | } | |
c906108c SS |
1440 | return result; |
1441 | } | |
c5aa993b | 1442 | /*****************************************************************************/ |
c906108c SS |
1443 | /* Store a single register indicated by 'regno'. |
1444 | * Returns 0/-1 on success/failure. | |
1445 | */ | |
1446 | static int | |
fba45db2 | 1447 | store_register (int regno) |
c906108c | 1448 | { |
c5aa993b | 1449 | int result; |
c906108c | 1450 | |
c5aa993b JM |
1451 | out_msg_buf->write_req_msg.code = WRITE_REQ; |
1452 | out_msg_buf->write_req_msg.length = 4 * 4; | |
c906108c SS |
1453 | out_msg_buf->write_req_msg.byte_count = 4; |
1454 | out_msg_buf->write_r_msg.data[0] = read_register (regno); | |
1455 | ||
1456 | if (regno == GR1_REGNUM) | |
c5aa993b JM |
1457 | { |
1458 | out_msg_buf->write_req_msg.memory_space = GLOBAL_REG; | |
1459 | out_msg_buf->write_req_msg.address = 1; | |
1460 | /* Setting GR1 changes the numbers of all the locals, so invalidate the | |
1461 | * register cache. Do this *after* calling read_register, because we want | |
1462 | * read_register to return the value that write_register has just stuffed | |
1463 | * into the registers array, not the value of the register fetched from | |
1464 | * the inferior. | |
1465 | */ | |
1466 | registers_changed (); | |
1467 | } | |
c906108c | 1468 | #if defined(GR64_REGNUM) |
c5aa993b JM |
1469 | else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32) |
1470 | { | |
1471 | out_msg_buf->write_req_msg.memory_space = GLOBAL_REG; | |
1472 | out_msg_buf->write_req_msg.address = (regno - GR64_REGNUM) + 64; | |
1473 | } | |
1474 | #endif /* GR64_REGNUM */ | |
c906108c | 1475 | else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32) |
c5aa993b JM |
1476 | { |
1477 | out_msg_buf->write_req_msg.memory_space = GLOBAL_REG; | |
1478 | out_msg_buf->write_req_msg.address = (regno - GR96_REGNUM) + 96; | |
1479 | } | |
c906108c | 1480 | else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128) |
c5aa993b JM |
1481 | { |
1482 | out_msg_buf->write_req_msg.memory_space = LOCAL_REG; | |
1483 | out_msg_buf->write_req_msg.address = (regno - LR0_REGNUM); | |
1484 | } | |
1485 | else if (regno >= FPE_REGNUM && regno <= EXO_REGNUM) | |
1486 | { | |
1487 | return 0; /* Pretend Success */ | |
1488 | } | |
1489 | else | |
1490 | /* An unprotected or protected special register */ | |
1491 | { | |
1492 | out_msg_buf->write_req_msg.memory_space = SPECIAL_REG; | |
1493 | out_msg_buf->write_req_msg.address = regnum_to_srnum (regno); | |
1494 | } | |
c906108c | 1495 | |
c5aa993b | 1496 | msg_send_serial (out_msg_buf); |
c906108c | 1497 | |
c5aa993b JM |
1498 | if (expect_msg (WRITE_ACK, in_msg_buf, 1)) |
1499 | { | |
1500 | result = 0; | |
1501 | } | |
1502 | else | |
1503 | { | |
1504 | result = -1; | |
1505 | } | |
c906108c SS |
1506 | return result; |
1507 | } | |
1508 | /****************************************************************************/ | |
1509 | /* | |
1510 | * Convert a gdb special register number to a 29000 special register number. | |
1511 | */ | |
1512 | static int | |
fba45db2 | 1513 | regnum_to_srnum (int regno) |
c906108c | 1514 | { |
c5aa993b JM |
1515 | switch (regno) |
1516 | { | |
1517 | case VAB_REGNUM: | |
1518 | return (0); | |
1519 | case OPS_REGNUM: | |
1520 | return (1); | |
1521 | case CPS_REGNUM: | |
1522 | return (2); | |
1523 | case CFG_REGNUM: | |
1524 | return (3); | |
1525 | case CHA_REGNUM: | |
1526 | return (4); | |
1527 | case CHD_REGNUM: | |
1528 | return (5); | |
1529 | case CHC_REGNUM: | |
1530 | return (6); | |
1531 | case RBP_REGNUM: | |
1532 | return (7); | |
1533 | case TMC_REGNUM: | |
1534 | return (8); | |
1535 | case TMR_REGNUM: | |
1536 | return (9); | |
1537 | case NPC_REGNUM: | |
1538 | return (USE_SHADOW_PC ? (20) : (10)); | |
1539 | case PC_REGNUM: | |
1540 | return (USE_SHADOW_PC ? (21) : (11)); | |
1541 | case PC2_REGNUM: | |
1542 | return (USE_SHADOW_PC ? (22) : (12)); | |
1543 | case MMU_REGNUM: | |
1544 | return (13); | |
1545 | case LRU_REGNUM: | |
1546 | return (14); | |
1547 | case IPC_REGNUM: | |
1548 | return (128); | |
1549 | case IPA_REGNUM: | |
1550 | return (129); | |
1551 | case IPB_REGNUM: | |
1552 | return (130); | |
1553 | case Q_REGNUM: | |
1554 | return (131); | |
1555 | case ALU_REGNUM: | |
1556 | return (132); | |
1557 | case BP_REGNUM: | |
1558 | return (133); | |
1559 | case FC_REGNUM: | |
1560 | return (134); | |
1561 | case CR_REGNUM: | |
1562 | return (135); | |
1563 | case FPE_REGNUM: | |
1564 | return (160); | |
1565 | case INTE_REGNUM: | |
1566 | return (161); | |
1567 | case FPS_REGNUM: | |
1568 | return (162); | |
1569 | case EXO_REGNUM: | |
1570 | return (164); | |
1571 | default: | |
1572 | return (255); /* Failure ? */ | |
1573 | } | |
c906108c SS |
1574 | } |
1575 | /****************************************************************************/ | |
1576 | /* | |
1577 | * Initialize the target debugger (minimon only). | |
1578 | */ | |
1579 | static void | |
fba45db2 KB |
1580 | init_target_mm (ADDR32 tstart, ADDR32 tend, ADDR32 dstart, ADDR32 dend, |
1581 | ADDR32 entry, INT32 ms_size, INT32 rs_size, ADDR32 arg_start) | |
c906108c | 1582 | { |
c5aa993b JM |
1583 | out_msg_buf->init_msg.code = INIT; |
1584 | out_msg_buf->init_msg.length = sizeof (struct init_msg_t) - 2 * sizeof (INT32); | |
1585 | out_msg_buf->init_msg.text_start = tstart; | |
1586 | out_msg_buf->init_msg.text_end = tend; | |
1587 | out_msg_buf->init_msg.data_start = dstart; | |
1588 | out_msg_buf->init_msg.data_end = dend; | |
1589 | out_msg_buf->init_msg.entry_point = entry; | |
1590 | out_msg_buf->init_msg.mem_stack_size = ms_size; | |
1591 | out_msg_buf->init_msg.reg_stack_size = rs_size; | |
1592 | out_msg_buf->init_msg.arg_start = arg_start; | |
1593 | msg_send_serial (out_msg_buf); | |
1594 | expect_msg (INIT_ACK, in_msg_buf, 1); | |
c906108c SS |
1595 | } |
1596 | /****************************************************************************/ | |
1597 | /* | |
1598 | * Return a pointer to a string representing the given message code. | |
1599 | * Not all messages are represented here, only the ones that we expect | |
1600 | * to be called with. | |
1601 | */ | |
c5aa993b | 1602 | static char * |
fba45db2 | 1603 | msg_str (INT32 code) |
c906108c | 1604 | { |
c5aa993b JM |
1605 | static char cbuf[32]; |
1606 | ||
1607 | switch (code) | |
1608 | { | |
1609 | case BKPT_SET_ACK: | |
1610 | sprintf (cbuf, "%s (%d)", "BKPT_SET_ACK", code); | |
1611 | break; | |
1612 | case BKPT_RM_ACK: | |
1613 | sprintf (cbuf, "%s (%d)", "BKPT_RM_ACK", code); | |
1614 | break; | |
1615 | case INIT_ACK: | |
1616 | sprintf (cbuf, "%s (%d)", "INIT_ACK", code); | |
1617 | break; | |
1618 | case READ_ACK: | |
1619 | sprintf (cbuf, "%s (%d)", "READ_ACK", code); | |
1620 | break; | |
1621 | case WRITE_ACK: | |
1622 | sprintf (cbuf, "%s (%d)", "WRITE_ACK", code); | |
1623 | break; | |
1624 | case ERROR: | |
1625 | sprintf (cbuf, "%s (%d)", "ERROR", code); | |
1626 | break; | |
1627 | case HALT: | |
1628 | sprintf (cbuf, "%s (%d)", "HALT", code); | |
1629 | break; | |
1630 | default: | |
1631 | sprintf (cbuf, "UNKNOWN (%d)", code); | |
1632 | break; | |
1633 | } | |
1634 | return (cbuf); | |
c906108c SS |
1635 | } |
1636 | /****************************************************************************/ | |
1637 | /* | |
1638 | * Selected (not all of them) error codes that we might get. | |
1639 | */ | |
c5aa993b | 1640 | static char * |
fba45db2 | 1641 | error_msg_str (INT32 code) |
c906108c | 1642 | { |
c5aa993b JM |
1643 | static char cbuf[50]; |
1644 | ||
1645 | switch (code) | |
1646 | { | |
1647 | case EMFAIL: | |
1648 | return ("EMFAIL: unrecoverable error"); | |
1649 | case EMBADADDR: | |
1650 | return ("EMBADADDR: Illegal address"); | |
1651 | case EMBADREG: | |
1652 | return ("EMBADREG: Illegal register "); | |
1653 | case EMACCESS: | |
1654 | return ("EMACCESS: Could not access memory"); | |
1655 | case EMBADMSG: | |
1656 | return ("EMBADMSG: Unknown message type"); | |
1657 | case EMMSG2BIG: | |
1658 | return ("EMMSG2BIG: Message to large"); | |
1659 | case EMNOSEND: | |
1660 | return ("EMNOSEND: Could not send message"); | |
1661 | case EMNORECV: | |
1662 | return ("EMNORECV: Could not recv message"); | |
1663 | case EMRESET: | |
1664 | return ("EMRESET: Could not RESET target"); | |
1665 | case EMCONFIG: | |
1666 | return ("EMCONFIG: Could not get target CONFIG"); | |
1667 | case EMSTATUS: | |
1668 | return ("EMSTATUS: Could not get target STATUS"); | |
1669 | case EMREAD: | |
1670 | return ("EMREAD: Could not READ target memory"); | |
1671 | case EMWRITE: | |
1672 | return ("EMWRITE: Could not WRITE target memory"); | |
1673 | case EMBKPTSET: | |
1674 | return ("EMBKPTSET: Could not set breakpoint"); | |
1675 | case EMBKPTRM: | |
1676 | return ("EMBKPTRM: Could not remove breakpoint"); | |
1677 | case EMBKPTSTAT: | |
1678 | return ("EMBKPTSTAT: Could not get breakpoint status"); | |
1679 | case EMBKPTNONE: | |
1680 | return ("EMBKPTNONE: All breakpoints in use"); | |
1681 | case EMBKPTUSED: | |
1682 | return ("EMBKPTUSED: Breakpoints already in use"); | |
1683 | case EMINIT: | |
1684 | return ("EMINIT: Could not init target memory"); | |
1685 | case EMGO: | |
1686 | return ("EMGO: Could not start execution"); | |
1687 | case EMSTEP: | |
1688 | return ("EMSTEP: Could not single step"); | |
1689 | case EMBREAK: | |
1690 | return ("EMBREAK: Could not BREAK"); | |
1691 | case EMCOMMERR: | |
1692 | return ("EMCOMMERR: Communication error"); | |
1693 | default: | |
1694 | sprintf (cbuf, "error number %d", code); | |
1695 | break; | |
1696 | } /* end switch */ | |
1697 | ||
1698 | return (cbuf); | |
c906108c SS |
1699 | } |
1700 | /****************************************************************************/ | |
d742f2c2 KB |
1701 | |
1702 | /* Receive a message, placing it in MSG_BUF, and expect it to be of | |
1703 | type MSGCODE. If an error occurs, a non-zero FROM_TTY indicates | |
1704 | that the message should be printed. | |
1705 | ||
1706 | Return 0 for failure, 1 for success. */ | |
1707 | ||
c906108c | 1708 | static int |
d742f2c2 | 1709 | expect_msg (INT32 msgcode, union msg_t *msg_buf, int from_tty) |
c906108c | 1710 | { |
c5aa993b JM |
1711 | int retries = 0; |
1712 | while (msg_recv_serial (msg_buf) && (retries++ < MAX_RETRIES)); | |
1713 | if (retries >= MAX_RETRIES) | |
1714 | { | |
1715 | printf ("Expected msg %s, ", msg_str (msgcode)); | |
1716 | printf ("no message received!\n"); | |
1717 | return (0); /* Failure */ | |
1718 | } | |
c906108c | 1719 | |
c5aa993b JM |
1720 | if (msg_buf->generic_msg.code != msgcode) |
1721 | { | |
1722 | if (from_tty) | |
1723 | { | |
1724 | printf ("Expected msg %s, ", msg_str (msgcode)); | |
1725 | printf ("got msg %s\n", msg_str (msg_buf->generic_msg.code)); | |
1726 | if (msg_buf->generic_msg.code == ERROR) | |
1727 | printf ("%s\n", error_msg_str (msg_buf->error_msg.error_code)); | |
1728 | } | |
1729 | return (0); /* Failure */ | |
1730 | } | |
1731 | return (1); /* Success */ | |
1732 | } | |
c906108c SS |
1733 | /****************************************************************************/ |
1734 | /* | |
1735 | * Determine the MiniMon memory space qualifier based on the addr. | |
1736 | * FIXME: Can't distinguis I_ROM/D_ROM. | |
1737 | * FIXME: Doesn't know anything about I_CACHE/D_CACHE. | |
1738 | */ | |
1739 | static int | |
fba45db2 | 1740 | mm_memory_space (CORE_ADDR *addr) |
c906108c | 1741 | { |
c5aa993b JM |
1742 | ADDR32 tstart = target_config.I_mem_start; |
1743 | ADDR32 tend = tstart + target_config.I_mem_size; | |
1744 | ADDR32 dstart = target_config.D_mem_start; | |
1745 | ADDR32 dend = tstart + target_config.D_mem_size; | |
1746 | ADDR32 rstart = target_config.ROM_start; | |
1747 | ADDR32 rend = tstart + target_config.ROM_size; | |
1748 | ||
1749 | if (((ADDR32) addr >= tstart) && ((ADDR32) addr < tend)) | |
1750 | { | |
1751 | return I_MEM; | |
1752 | } | |
1753 | else if (((ADDR32) addr >= dstart) && ((ADDR32) addr < dend)) | |
1754 | { | |
1755 | return D_MEM; | |
1756 | } | |
1757 | else if (((ADDR32) addr >= rstart) && ((ADDR32) addr < rend)) | |
1758 | { | |
1759 | /* FIXME: how do we determine between D_ROM and I_ROM */ | |
1760 | return D_ROM; | |
1761 | } | |
1762 | else /* FIXME: what do me do now? */ | |
1763 | return D_MEM; /* Hmmm! */ | |
c906108c SS |
1764 | } |
1765 | ||
1766 | /****************************************************************************/ | |
1767 | /* | |
1768 | * Define the target subroutine names | |
1769 | */ | |
c5aa993b | 1770 | struct target_ops mm_ops; |
c906108c | 1771 | |
c5aa993b JM |
1772 | static void |
1773 | init_mm_ops (void) | |
c906108c | 1774 | { |
c5aa993b JM |
1775 | mm_ops.to_shortname = "minimon"; |
1776 | mm_ops.to_longname = "Remote AMD/Minimon target"; | |
1777 | mm_ops.to_doc = "Remote debug an AMD 290*0 using the MiniMon dbg core on the target"; | |
1778 | mm_ops.to_open = mm_open; | |
1779 | mm_ops.to_close = mm_close; | |
1780 | mm_ops.to_attach = mm_attach; | |
c906108c SS |
1781 | mm_ops.to_post_attach = NULL; |
1782 | mm_ops.to_require_attach = NULL; | |
c5aa993b | 1783 | mm_ops.to_detach = mm_detach; |
c906108c | 1784 | mm_ops.to_require_detach = NULL; |
c5aa993b JM |
1785 | mm_ops.to_resume = mm_resume; |
1786 | mm_ops.to_wait = mm_wait; | |
c906108c | 1787 | mm_ops.to_post_wait = NULL; |
c5aa993b JM |
1788 | mm_ops.to_fetch_registers = mm_fetch_registers; |
1789 | mm_ops.to_store_registers = mm_store_registers; | |
1790 | mm_ops.to_prepare_to_store = mm_prepare_to_store; | |
1791 | mm_ops.to_xfer_memory = mm_xfer_inferior_memory; | |
1792 | mm_ops.to_files_info = mm_files_info; | |
1793 | mm_ops.to_insert_breakpoint = mm_insert_breakpoint; | |
1794 | mm_ops.to_remove_breakpoint = mm_remove_breakpoint; | |
1795 | mm_ops.to_terminal_init = 0; | |
1796 | mm_ops.to_terminal_inferior = 0; | |
1797 | mm_ops.to_terminal_ours_for_output = 0; | |
1798 | mm_ops.to_terminal_ours = 0; | |
1799 | mm_ops.to_terminal_info = 0; | |
1800 | mm_ops.to_kill = mm_kill; | |
1801 | mm_ops.to_load = mm_load; | |
1802 | mm_ops.to_lookup_symbol = 0; | |
1803 | mm_ops.to_create_inferior = mm_create_inferior; | |
c906108c SS |
1804 | mm_ops.to_post_startup_inferior = NULL; |
1805 | mm_ops.to_acknowledge_created_inferior = NULL; | |
1806 | mm_ops.to_clone_and_follow_inferior = NULL; | |
1807 | mm_ops.to_post_follow_inferior_by_clone = NULL; | |
1808 | mm_ops.to_insert_fork_catchpoint = NULL; | |
1809 | mm_ops.to_remove_fork_catchpoint = NULL; | |
1810 | mm_ops.to_insert_vfork_catchpoint = NULL; | |
1811 | mm_ops.to_remove_vfork_catchpoint = NULL; | |
1812 | mm_ops.to_has_forked = NULL; | |
1813 | mm_ops.to_has_vforked = NULL; | |
1814 | mm_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
c5aa993b | 1815 | mm_ops.to_post_follow_vfork = NULL; |
c906108c SS |
1816 | mm_ops.to_insert_exec_catchpoint = NULL; |
1817 | mm_ops.to_remove_exec_catchpoint = NULL; | |
1818 | mm_ops.to_has_execd = NULL; | |
1819 | mm_ops.to_reported_exec_events_per_exec_call = NULL; | |
1820 | mm_ops.to_has_exited = NULL; | |
c5aa993b JM |
1821 | mm_ops.to_mourn_inferior = mm_mourn; |
1822 | mm_ops.to_can_run = 0; | |
1823 | mm_ops.to_notice_signals = 0; | |
1824 | mm_ops.to_thread_alive = 0; | |
1825 | mm_ops.to_stop = 0; | |
c906108c SS |
1826 | mm_ops.to_pid_to_exec_file = NULL; |
1827 | mm_ops.to_core_file_to_sym_file = NULL; | |
c5aa993b JM |
1828 | mm_ops.to_stratum = process_stratum; |
1829 | mm_ops.DONT_USE = 0; | |
1830 | mm_ops.to_has_all_memory = 1; | |
1831 | mm_ops.to_has_memory = 1; | |
1832 | mm_ops.to_has_stack = 1; | |
1833 | mm_ops.to_has_registers = 1; | |
1834 | mm_ops.to_has_execution = 1; | |
1835 | mm_ops.to_sections = 0; | |
1836 | mm_ops.to_sections_end = 0; | |
1837 | mm_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
1838 | }; |
1839 | ||
1840 | void | |
fba45db2 | 1841 | _initialize_remote_mm (void) |
c906108c | 1842 | { |
c5aa993b | 1843 | init_mm_ops (); |
c906108c SS |
1844 | add_target (&mm_ops); |
1845 | } | |
1846 | ||
1847 | #ifdef NO_HIF_SUPPORT | |
fba45db2 | 1848 | service_HIF (union msg_t *msg) |
c906108c | 1849 | { |
c5aa993b | 1850 | return (0); /* Emulate a failure */ |
c906108c SS |
1851 | } |
1852 | #endif |