Commit | Line | Data |
---|---|---|
c906108c SS |
1 | /* Remote debugging interface for boot monitors, for GDB. |
2 | Copyright 1990, 1991, 1992, 1993, 1995, 1996, 1997, 1999 | |
3 | Free Software Foundation, Inc. | |
4 | Contributed by Cygnus Support. Written by Rob Savoye for Cygnus. | |
5 | Resurrected from the ashes by Stu Grossman. | |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
23 | |
24 | /* This file was derived from various remote-* modules. It is a collection | |
25 | of generic support functions so GDB can talk directly to a ROM based | |
26 | monitor. This saves use from having to hack an exception based handler | |
27 | into existance, and makes for quick porting. | |
28 | ||
29 | This module talks to a debug monitor called 'MONITOR', which | |
30 | We communicate with MONITOR via either a direct serial line, or a TCP | |
31 | (or possibly TELNET) stream to a terminal multiplexor, | |
32 | which in turn talks to the target board. */ | |
33 | ||
34 | /* FIXME 32x64: This code assumes that registers and addresses are at | |
35 | most 32 bits long. If they can be larger, you will need to declare | |
36 | values as LONGEST and use %llx or some such to print values when | |
37 | building commands to send to the monitor. Since we don't know of | |
38 | any actual 64-bit targets with ROM monitors that use this code, | |
39 | it's not an issue right now. -sts 4/18/96 */ | |
40 | ||
41 | #include "defs.h" | |
42 | #include "gdbcore.h" | |
43 | #include "target.h" | |
44 | #include "wait.h" | |
45 | #ifdef ANSI_PROTOTYPES | |
46 | #include <stdarg.h> | |
47 | #else | |
48 | #include <varargs.h> | |
49 | #endif | |
50 | #include <signal.h> | |
51 | #include <ctype.h> | |
52 | #include "gdb_string.h" | |
53 | #include <sys/types.h> | |
54 | #include "command.h" | |
55 | #include "serial.h" | |
56 | #include "monitor.h" | |
57 | #include "gdbcmd.h" | |
58 | #include "inferior.h" | |
59 | #include "gnu-regex.h" | |
60 | #include "dcache.h" | |
61 | #include "srec.h" | |
62 | ||
63 | static char *dev_name; | |
64 | static struct target_ops *targ_ops; | |
65 | ||
66 | static void monitor_vsprintf PARAMS ((char *sndbuf, char *pattern, va_list args)); | |
67 | ||
68 | static int readchar PARAMS ((int timeout)); | |
69 | ||
70 | static void monitor_command PARAMS ((char *args, int fromtty)); | |
71 | ||
72 | static void monitor_fetch_register PARAMS ((int regno)); | |
73 | static void monitor_store_register PARAMS ((int regno)); | |
74 | ||
75 | static int monitor_printable_string PARAMS ((char *newstr, char *oldstr)); | |
76 | static void monitor_error PARAMS ((char *format, CORE_ADDR memaddr, int len, char *string, int final_char)); | |
77 | static void monitor_detach PARAMS ((char *args, int from_tty)); | |
78 | static void monitor_resume PARAMS ((int pid, int step, enum target_signal sig)); | |
79 | static void monitor_interrupt PARAMS ((int signo)); | |
80 | static void monitor_interrupt_twice PARAMS ((int signo)); | |
81 | static void monitor_interrupt_query PARAMS ((void)); | |
82 | static void monitor_wait_cleanup PARAMS ((void *old_timeout)); | |
83 | ||
c5aa993b | 84 | static int monitor_wait PARAMS ((int pid, struct target_waitstatus * status)); |
c906108c SS |
85 | static void monitor_fetch_registers PARAMS ((int regno)); |
86 | static void monitor_store_registers PARAMS ((int regno)); | |
87 | static void monitor_prepare_to_store PARAMS ((void)); | |
c5aa993b JM |
88 | static int monitor_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len, int write, struct target_ops * target)); |
89 | static void monitor_files_info PARAMS ((struct target_ops * ops)); | |
c906108c SS |
90 | static int monitor_insert_breakpoint PARAMS ((CORE_ADDR addr, char *shadow)); |
91 | static int monitor_remove_breakpoint PARAMS ((CORE_ADDR addr, char *shadow)); | |
92 | static void monitor_kill PARAMS ((void)); | |
93 | static void monitor_load PARAMS ((char *file, int from_tty)); | |
94 | static void monitor_mourn_inferior PARAMS ((void)); | |
95 | static void monitor_stop PARAMS ((void)); | |
96 | ||
c5aa993b JM |
97 | static int monitor_read_memory PARAMS ((CORE_ADDR addr, char *myaddr, int len)); |
98 | static int monitor_write_memory PARAMS ((CORE_ADDR addr, char *myaddr, int len)); | |
c906108c | 99 | static int monitor_write_memory_bytes PARAMS ((CORE_ADDR addr, |
c5aa993b JM |
100 | char *myaddr, int len)); |
101 | static int monitor_write_memory_block PARAMS (( | |
102 | CORE_ADDR memaddr, | |
103 | char *myaddr, | |
104 | int len)); | |
105 | static int monitor_expect_regexp PARAMS ((struct re_pattern_buffer * pat, | |
c906108c | 106 | char *buf, int buflen)); |
c5aa993b | 107 | static void monitor_dump_regs PARAMS ((void)); |
c906108c SS |
108 | #if 0 |
109 | static int from_hex PARAMS ((int a)); | |
110 | static unsigned long get_hex_word PARAMS ((void)); | |
111 | #endif | |
112 | static void parse_register_dump PARAMS ((char *, int)); | |
113 | ||
114 | static struct monitor_ops *current_monitor; | |
115 | ||
116 | static int hashmark; /* flag set by "set hash" */ | |
117 | ||
118 | static int timeout = 30; | |
119 | ||
120 | static int in_monitor_wait = 0; /* Non-zero means we are in monitor_wait() */ | |
121 | ||
c5aa993b | 122 | static void (*ofunc) (); /* Old SIGINT signal handler */ |
c906108c | 123 | |
9e086581 JM |
124 | static CORE_ADDR *breakaddr; |
125 | ||
c906108c SS |
126 | /* Extra remote debugging for developing a new rom monitor variation */ |
127 | #if ! defined(EXTRA_RDEBUG) | |
128 | #define EXTRA_RDEBUG 0 | |
129 | #endif | |
130 | #define RDEBUG(stuff) { if (EXTRA_RDEBUG && remote_debug) printf stuff ; } | |
131 | ||
132 | /* Descriptor for I/O to remote machine. Initialize it to NULL so | |
133 | that monitor_open knows that we don't have a file open when the | |
134 | program starts. */ | |
135 | ||
136 | static serial_t monitor_desc = NULL; | |
137 | ||
138 | /* Pointer to regexp pattern matching data */ | |
139 | ||
140 | static struct re_pattern_buffer register_pattern; | |
141 | static char register_fastmap[256]; | |
142 | ||
143 | static struct re_pattern_buffer getmem_resp_delim_pattern; | |
144 | static char getmem_resp_delim_fastmap[256]; | |
145 | ||
146 | static int dump_reg_flag; /* Non-zero means do a dump_registers cmd when | |
147 | monitor_wait wakes up. */ | |
148 | ||
149 | static DCACHE *remote_dcache; | |
c5aa993b JM |
150 | static int first_time = 0; /* is this the first time we're executing after |
151 | gaving created the child proccess? */ | |
c906108c SS |
152 | |
153 | /* Convert a string into a printable representation, Return # byte in the | |
154 | new string. */ | |
155 | ||
156 | static int | |
157 | monitor_printable_string (newstr, oldstr) | |
158 | char *newstr; | |
159 | char *oldstr; | |
160 | { | |
161 | char *save = newstr; | |
162 | int ch; | |
163 | ||
164 | while ((ch = *oldstr++) != '\0') | |
165 | { | |
166 | switch (ch) | |
c5aa993b | 167 | { |
c906108c SS |
168 | default: |
169 | if (isprint (ch)) | |
170 | *newstr++ = ch; | |
171 | ||
172 | else | |
173 | { | |
174 | sprintf (newstr, "\\x%02x", ch & 0xff); | |
175 | newstr += 4; | |
176 | } | |
177 | break; | |
178 | ||
c5aa993b JM |
179 | case '\\': |
180 | *newstr++ = '\\'; | |
181 | *newstr++ = '\\'; | |
182 | break; | |
183 | case '\b': | |
184 | *newstr++ = '\\'; | |
185 | *newstr++ = 'b'; | |
186 | break; | |
187 | case '\f': | |
188 | *newstr++ = '\\'; | |
189 | *newstr++ = 't'; | |
190 | break; | |
191 | case '\n': | |
192 | *newstr++ = '\\'; | |
193 | *newstr++ = 'n'; | |
194 | break; | |
195 | case '\r': | |
196 | *newstr++ = '\\'; | |
197 | *newstr++ = 'r'; | |
198 | break; | |
199 | case '\t': | |
200 | *newstr++ = '\\'; | |
201 | *newstr++ = 't'; | |
202 | break; | |
203 | case '\v': | |
204 | *newstr++ = '\\'; | |
205 | *newstr++ = 'v'; | |
206 | break; | |
207 | } | |
c906108c SS |
208 | } |
209 | ||
210 | *newstr++ = '\0'; | |
211 | return newstr - save; | |
212 | } | |
213 | ||
214 | /* Print monitor errors with a string, converting the string to printable | |
215 | representation. */ | |
216 | ||
217 | static void | |
218 | monitor_error (format, memaddr, len, string, final_char) | |
219 | char *format; | |
220 | CORE_ADDR memaddr; | |
221 | int len; | |
222 | char *string; | |
223 | int final_char; | |
224 | { | |
c5aa993b | 225 | int real_len = (len == 0 && string != (char *) 0) ? strlen (string) : len; |
c906108c SS |
226 | char *safe_string = alloca ((real_len * 4) + 1); |
227 | char *p, *q; | |
228 | int ch; | |
229 | int safe_len = monitor_printable_string (safe_string, string); | |
230 | ||
231 | if (final_char) | |
c5aa993b | 232 | error (format, (int) memaddr, p - safe_string, safe_string, final_char); |
c906108c | 233 | else |
c5aa993b | 234 | error (format, (int) memaddr, p - safe_string, safe_string); |
c906108c SS |
235 | } |
236 | ||
237 | /* Convert hex digit A to a number. */ | |
238 | ||
239 | static int | |
240 | fromhex (a) | |
241 | int a; | |
242 | { | |
243 | if (a >= '0' && a <= '9') | |
244 | return a - '0'; | |
245 | else if (a >= 'a' && a <= 'f') | |
246 | return a - 'a' + 10; | |
c5aa993b JM |
247 | else if (a >= 'A' && a <= 'F') |
248 | return a - 'A' + 10; | |
c906108c | 249 | else |
c5aa993b | 250 | error ("Invalid hex digit %d", a); |
c906108c SS |
251 | } |
252 | ||
253 | /* monitor_vsprintf - similar to vsprintf but handles 64-bit addresses | |
254 | ||
255 | This function exists to get around the problem that many host platforms | |
256 | don't have a printf that can print 64-bit addresses. The %A format | |
257 | specification is recognized as a special case, and causes the argument | |
258 | to be printed as a 64-bit hexadecimal address. | |
259 | ||
260 | Only format specifiers of the form "[0-9]*[a-z]" are recognized. | |
261 | If it is a '%s' format, the argument is a string; otherwise the | |
262 | argument is assumed to be a long integer. | |
263 | ||
264 | %% is also turned into a single %. | |
c5aa993b JM |
265 | */ |
266 | ||
c906108c SS |
267 | static void |
268 | monitor_vsprintf (sndbuf, pattern, args) | |
269 | char *sndbuf; | |
270 | char *pattern; | |
271 | va_list args; | |
272 | { | |
273 | char format[10]; | |
274 | char fmt; | |
275 | char *p; | |
276 | int i; | |
277 | long arg_int; | |
278 | CORE_ADDR arg_addr; | |
279 | char *arg_string; | |
280 | ||
281 | for (p = pattern; *p; p++) | |
282 | { | |
283 | if (*p == '%') | |
284 | { | |
285 | /* Copy the format specifier to a separate buffer. */ | |
286 | format[0] = *p++; | |
287 | for (i = 1; *p >= '0' && *p <= '9' && i < (int) sizeof (format) - 2; | |
288 | i++, p++) | |
289 | format[i] = *p; | |
290 | format[i] = fmt = *p; | |
c5aa993b | 291 | format[i + 1] = '\0'; |
c906108c SS |
292 | |
293 | /* Fetch the next argument and print it. */ | |
294 | switch (fmt) | |
295 | { | |
296 | case '%': | |
297 | strcpy (sndbuf, "%"); | |
298 | break; | |
299 | case 'A': | |
300 | arg_addr = va_arg (args, CORE_ADDR); | |
301 | strcpy (sndbuf, paddr_nz (arg_addr)); | |
302 | break; | |
303 | case 's': | |
304 | arg_string = va_arg (args, char *); | |
305 | sprintf (sndbuf, format, arg_string); | |
306 | break; | |
307 | default: | |
308 | arg_int = va_arg (args, long); | |
309 | sprintf (sndbuf, format, arg_int); | |
310 | break; | |
311 | } | |
312 | sndbuf += strlen (sndbuf); | |
313 | } | |
314 | else | |
315 | *sndbuf++ = *p; | |
316 | } | |
317 | *sndbuf = '\0'; | |
318 | } | |
319 | ||
320 | ||
321 | /* monitor_printf_noecho -- Send data to monitor, but don't expect an echo. | |
322 | Works just like printf. */ | |
323 | ||
324 | void | |
325 | #ifdef ANSI_PROTOTYPES | |
c5aa993b | 326 | monitor_printf_noecho (char *pattern,...) |
c906108c SS |
327 | #else |
328 | monitor_printf_noecho (va_alist) | |
329 | va_dcl | |
330 | #endif | |
331 | { | |
332 | va_list args; | |
333 | char sndbuf[2000]; | |
334 | int len; | |
335 | ||
336 | #if ANSI_PROTOTYPES | |
337 | va_start (args, pattern); | |
338 | #else | |
339 | char *pattern; | |
340 | va_start (args); | |
341 | pattern = va_arg (args, char *); | |
342 | #endif | |
343 | ||
344 | monitor_vsprintf (sndbuf, pattern, args); | |
345 | ||
346 | len = strlen (sndbuf); | |
347 | if (len + 1 > sizeof sndbuf) | |
348 | abort (); | |
349 | ||
350 | #if 0 | |
351 | if (remote_debug > 0) | |
352 | puts_debug ("sent -->", sndbuf, "<--"); | |
353 | #endif | |
354 | if (EXTRA_RDEBUG | |
355 | && remote_debug) | |
356 | { | |
357 | char *safe_string = (char *) alloca ((strlen (sndbuf) * 4) + 1); | |
358 | monitor_printable_string (safe_string, sndbuf); | |
359 | printf ("sent[%s]\n", safe_string); | |
360 | } | |
c5aa993b | 361 | |
c906108c SS |
362 | monitor_write (sndbuf, len); |
363 | } | |
364 | ||
365 | /* monitor_printf -- Send data to monitor and check the echo. Works just like | |
366 | printf. */ | |
367 | ||
368 | void | |
369 | #ifdef ANSI_PROTOTYPES | |
c5aa993b | 370 | monitor_printf (char *pattern,...) |
c906108c SS |
371 | #else |
372 | monitor_printf (va_alist) | |
373 | va_dcl | |
374 | #endif | |
375 | { | |
376 | va_list args; | |
377 | char sndbuf[2000]; | |
378 | int len; | |
379 | ||
380 | #ifdef ANSI_PROTOTYPES | |
381 | va_start (args, pattern); | |
382 | #else | |
383 | char *pattern; | |
384 | va_start (args); | |
385 | pattern = va_arg (args, char *); | |
386 | #endif | |
387 | ||
388 | monitor_vsprintf (sndbuf, pattern, args); | |
389 | ||
390 | len = strlen (sndbuf); | |
391 | if (len + 1 > sizeof sndbuf) | |
392 | abort (); | |
393 | ||
394 | #if 0 | |
395 | if (remote_debug > 0) | |
396 | puts_debug ("sent -->", sndbuf, "<--"); | |
397 | #endif | |
398 | if (EXTRA_RDEBUG | |
399 | && remote_debug) | |
400 | { | |
401 | char *safe_string = (char *) alloca ((len * 4) + 1); | |
402 | monitor_printable_string (safe_string, sndbuf); | |
403 | printf ("sent[%s]\n", safe_string); | |
404 | } | |
405 | ||
406 | monitor_write (sndbuf, len); | |
407 | ||
408 | /* We used to expect that the next immediate output was the characters we | |
409 | just output, but sometimes some extra junk appeared before the characters | |
410 | we expected, like an extra prompt, or a portmaster sending telnet negotiations. | |
411 | So, just start searching for what we sent, and skip anything unknown. */ | |
c5aa993b JM |
412 | RDEBUG (("ExpectEcho\n")) |
413 | monitor_expect (sndbuf, (char *) 0, 0); | |
c906108c SS |
414 | } |
415 | ||
416 | ||
417 | /* Write characters to the remote system. */ | |
418 | ||
419 | void | |
420 | monitor_write (buf, buflen) | |
421 | char *buf; | |
422 | int buflen; | |
423 | { | |
c5aa993b | 424 | if (SERIAL_WRITE (monitor_desc, buf, buflen)) |
c906108c SS |
425 | fprintf_unfiltered (gdb_stderr, "SERIAL_WRITE failed: %s\n", |
426 | safe_strerror (errno)); | |
427 | } | |
428 | ||
429 | ||
430 | /* Read a binary character from the remote system, doing all the fancy | |
431 | timeout stuff, but without interpreting the character in any way, | |
432 | and without printing remote debug information. */ | |
433 | ||
434 | int | |
435 | monitor_readchar () | |
436 | { | |
437 | int c; | |
438 | int looping; | |
439 | ||
440 | do | |
441 | { | |
442 | looping = 0; | |
443 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
444 | ||
445 | if (c >= 0) | |
c5aa993b | 446 | c &= 0xff; /* don't lose bit 7 */ |
c906108c SS |
447 | } |
448 | while (looping); | |
449 | ||
450 | if (c >= 0) | |
451 | return c; | |
452 | ||
453 | if (c == SERIAL_TIMEOUT) | |
c5aa993b | 454 | error ("Timeout reading from remote system."); |
c906108c SS |
455 | |
456 | perror_with_name ("remote-monitor"); | |
457 | } | |
458 | ||
459 | ||
460 | /* Read a character from the remote system, doing all the fancy | |
461 | timeout stuff. */ | |
462 | ||
463 | static int | |
464 | readchar (timeout) | |
465 | int timeout; | |
466 | { | |
467 | int c; | |
c5aa993b JM |
468 | static enum |
469 | { | |
470 | last_random, last_nl, last_cr, last_crnl | |
471 | } | |
472 | state = last_random; | |
c906108c SS |
473 | int looping; |
474 | ||
475 | do | |
476 | { | |
477 | looping = 0; | |
478 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
479 | ||
480 | if (c >= 0) | |
481 | { | |
482 | c &= 0x7f; | |
483 | #if 0 | |
484 | /* This seems to interfere with proper function of the | |
485 | input stream */ | |
486 | if (remote_debug > 0) | |
487 | { | |
488 | char buf[2]; | |
489 | buf[0] = c; | |
490 | buf[1] = '\0'; | |
491 | puts_debug ("read -->", buf, "<--"); | |
492 | } | |
c5aa993b JM |
493 | |
494 | #endif | |
c906108c SS |
495 | } |
496 | ||
497 | /* Canonicialize \n\r combinations into one \r */ | |
498 | if ((current_monitor->flags & MO_HANDLE_NL) != 0) | |
499 | { | |
500 | if ((c == '\r' && state == last_nl) | |
501 | || (c == '\n' && state == last_cr)) | |
502 | { | |
503 | state = last_crnl; | |
504 | looping = 1; | |
505 | } | |
506 | else if (c == '\r') | |
507 | state = last_cr; | |
508 | else if (c != '\n') | |
509 | state = last_random; | |
510 | else | |
511 | { | |
512 | state = last_nl; | |
513 | c = '\r'; | |
514 | } | |
515 | } | |
516 | } | |
517 | while (looping); | |
518 | ||
519 | if (c >= 0) | |
520 | return c; | |
521 | ||
522 | if (c == SERIAL_TIMEOUT) | |
7a292a7a | 523 | #if 0 |
c906108c SS |
524 | /* I fail to see how detaching here can be useful */ |
525 | if (in_monitor_wait) /* Watchdog went off */ | |
526 | { | |
527 | target_mourn_inferior (); | |
528 | error ("GDB serial timeout has expired. Target detached.\n"); | |
529 | } | |
530 | else | |
531 | #endif | |
532 | error ("Timeout reading from remote system."); | |
533 | ||
534 | perror_with_name ("remote-monitor"); | |
535 | } | |
536 | ||
537 | /* Scan input from the remote system, until STRING is found. If BUF is non- | |
538 | zero, then collect input until we have collected either STRING or BUFLEN-1 | |
539 | chars. In either case we terminate BUF with a 0. If input overflows BUF | |
540 | because STRING can't be found, return -1, else return number of chars in BUF | |
541 | (minus the terminating NUL). Note that in the non-overflow case, STRING | |
542 | will be at the end of BUF. */ | |
543 | ||
544 | int | |
545 | monitor_expect (string, buf, buflen) | |
546 | char *string; | |
547 | char *buf; | |
548 | int buflen; | |
549 | { | |
550 | char *p = string; | |
551 | int obuflen = buflen; | |
552 | int c; | |
553 | extern struct target_ops *targ_ops; | |
554 | ||
555 | if (EXTRA_RDEBUG | |
556 | && remote_debug) | |
557 | { | |
558 | char *safe_string = (char *) alloca ((strlen (string) * 4) + 1); | |
559 | monitor_printable_string (safe_string, string); | |
560 | printf ("MON Expecting '%s'\n", safe_string); | |
561 | } | |
562 | ||
563 | immediate_quit = 1; | |
564 | while (1) | |
565 | { | |
566 | if (buf) | |
567 | { | |
568 | if (buflen < 2) | |
569 | { | |
570 | *buf = '\000'; | |
571 | immediate_quit = 0; | |
572 | return -1; | |
573 | } | |
574 | ||
575 | c = readchar (timeout); | |
576 | if (c == '\000') | |
577 | continue; | |
578 | *buf++ = c; | |
579 | buflen--; | |
580 | } | |
581 | else | |
582 | c = readchar (timeout); | |
583 | ||
584 | /* Don't expect any ^C sent to be echoed */ | |
c5aa993b | 585 | |
c906108c SS |
586 | if (*p == '\003' || c == *p) |
587 | { | |
588 | p++; | |
589 | if (*p == '\0') | |
590 | { | |
591 | immediate_quit = 0; | |
592 | ||
593 | if (buf) | |
594 | { | |
595 | *buf++ = '\000'; | |
596 | return obuflen - buflen; | |
597 | } | |
598 | else | |
599 | return 0; | |
600 | } | |
601 | } | |
602 | else if ((c == '\021' || c == '\023') && | |
603 | (STREQ (targ_ops->to_shortname, "m32r") | |
604 | || STREQ (targ_ops->to_shortname, "mon2000"))) | |
c5aa993b | 605 | { /* m32r monitor emits random DC1/DC3 chars */ |
c906108c SS |
606 | continue; |
607 | } | |
608 | else | |
609 | { | |
a0b3c4fd JM |
610 | /* We got a character that doesn't match the string. We need to |
611 | back up p, but how far? If we're looking for "..howdy" and the | |
612 | monitor sends "...howdy"? There's certainly a match in there, | |
613 | but when we receive the third ".", we won't find it if we just | |
614 | restart the matching at the beginning of the string. | |
615 | ||
616 | This is a Boyer-Moore kind of situation. We want to reset P to | |
617 | the end of the longest prefix of STRING that is a suffix of | |
618 | what we've read so far. In the example above, that would be | |
619 | ".." --- the longest prefix of "..howdy" that is a suffix of | |
620 | "...". This longest prefix could be the empty string, if C | |
621 | is nowhere to be found in STRING. | |
622 | ||
623 | If this longest prefix is not the empty string, it must contain | |
624 | C, so let's search from the end of STRING for instances of C, | |
625 | and see if the portion of STRING before that is a suffix of | |
626 | what we read before C. Actually, we can search backwards from | |
627 | p, since we know no prefix can be longer than that. | |
628 | ||
629 | Note that we can use STRING itself, along with C, as a record | |
630 | of what we've received so far. :) */ | |
631 | int i; | |
632 | ||
633 | for (i = (p - string) - 1; i >= 0; i--) | |
634 | if (string[i] == c) | |
635 | { | |
636 | /* Is this prefix a suffix of what we've read so far? | |
637 | In other words, does | |
638 | string[0 .. i-1] == string[p - i, p - 1]? */ | |
639 | if (! memcmp (string, p - i, i)) | |
640 | { | |
641 | p = string + i + 1; | |
642 | break; | |
643 | } | |
644 | } | |
645 | if (i < 0) | |
646 | p = string; | |
c906108c SS |
647 | } |
648 | } | |
649 | } | |
650 | ||
651 | /* Search for a regexp. */ | |
652 | ||
653 | static int | |
654 | monitor_expect_regexp (pat, buf, buflen) | |
655 | struct re_pattern_buffer *pat; | |
656 | char *buf; | |
657 | int buflen; | |
658 | { | |
659 | char *mybuf; | |
660 | char *p; | |
c5aa993b | 661 | RDEBUG (("MON Expecting regexp\n")); |
c906108c SS |
662 | if (buf) |
663 | mybuf = buf; | |
664 | else | |
665 | { | |
666 | mybuf = alloca (1024); | |
667 | buflen = 1024; | |
668 | } | |
669 | ||
670 | p = mybuf; | |
671 | while (1) | |
672 | { | |
673 | int retval; | |
674 | ||
675 | if (p - mybuf >= buflen) | |
676 | { /* Buffer about to overflow */ | |
677 | ||
678 | /* On overflow, we copy the upper half of the buffer to the lower half. Not | |
679 | great, but it usually works... */ | |
680 | ||
681 | memcpy (mybuf, mybuf + buflen / 2, buflen / 2); | |
682 | p = mybuf + buflen / 2; | |
683 | } | |
684 | ||
685 | *p++ = readchar (timeout); | |
686 | ||
687 | retval = re_search (pat, mybuf, p - mybuf, 0, p - mybuf, NULL); | |
688 | if (retval >= 0) | |
689 | return 1; | |
690 | } | |
691 | } | |
692 | ||
693 | /* Keep discarding input until we see the MONITOR prompt. | |
694 | ||
695 | The convention for dealing with the prompt is that you | |
696 | o give your command | |
697 | o *then* wait for the prompt. | |
698 | ||
699 | Thus the last thing that a procedure does with the serial line will | |
700 | be an monitor_expect_prompt(). Exception: monitor_resume does not | |
701 | wait for the prompt, because the terminal is being handed over to | |
702 | the inferior. However, the next thing which happens after that is | |
703 | a monitor_wait which does wait for the prompt. Note that this | |
704 | includes abnormal exit, e.g. error(). This is necessary to prevent | |
705 | getting into states from which we can't recover. */ | |
706 | ||
707 | int | |
708 | monitor_expect_prompt (buf, buflen) | |
709 | char *buf; | |
710 | int buflen; | |
711 | { | |
c5aa993b JM |
712 | RDEBUG (("MON Expecting prompt\n")) |
713 | return monitor_expect (current_monitor->prompt, buf, buflen); | |
c906108c SS |
714 | } |
715 | ||
716 | /* Get N 32-bit words from remote, each preceded by a space, and put | |
717 | them in registers starting at REGNO. */ | |
718 | ||
719 | #if 0 | |
720 | static unsigned long | |
721 | get_hex_word () | |
722 | { | |
723 | unsigned long val; | |
724 | int i; | |
725 | int ch; | |
726 | ||
727 | do | |
728 | ch = readchar (timeout); | |
c5aa993b | 729 | while (isspace (ch)); |
c906108c SS |
730 | |
731 | val = from_hex (ch); | |
732 | ||
733 | for (i = 7; i >= 1; i--) | |
734 | { | |
735 | ch = readchar (timeout); | |
736 | if (!isxdigit (ch)) | |
737 | break; | |
738 | val = (val << 4) | from_hex (ch); | |
739 | } | |
740 | ||
741 | return val; | |
742 | } | |
743 | #endif | |
744 | ||
745 | static void | |
746 | compile_pattern (pattern, compiled_pattern, fastmap) | |
747 | char *pattern; | |
748 | struct re_pattern_buffer *compiled_pattern; | |
749 | char *fastmap; | |
750 | { | |
751 | int tmp; | |
752 | const char *val; | |
753 | ||
754 | compiled_pattern->fastmap = fastmap; | |
755 | ||
756 | tmp = re_set_syntax (RE_SYNTAX_EMACS); | |
757 | val = re_compile_pattern (pattern, | |
758 | strlen (pattern), | |
759 | compiled_pattern); | |
760 | re_set_syntax (tmp); | |
761 | ||
762 | if (val) | |
763 | error ("compile_pattern: Can't compile pattern string `%s': %s!", pattern, val); | |
764 | ||
765 | if (fastmap) | |
766 | re_compile_fastmap (compiled_pattern); | |
767 | } | |
768 | ||
769 | /* Open a connection to a remote debugger. NAME is the filename used | |
770 | for communication. */ | |
771 | ||
772 | void | |
773 | monitor_open (args, mon_ops, from_tty) | |
774 | char *args; | |
775 | struct monitor_ops *mon_ops; | |
776 | int from_tty; | |
777 | { | |
778 | char *name; | |
779 | char **p; | |
780 | ||
781 | if (mon_ops->magic != MONITOR_OPS_MAGIC) | |
782 | error ("Magic number of monitor_ops struct wrong."); | |
783 | ||
784 | targ_ops = mon_ops->target; | |
785 | name = targ_ops->to_shortname; | |
786 | ||
787 | if (!args) | |
788 | error ("Use `target %s DEVICE-NAME' to use a serial port, or \n\ | |
789 | `target %s HOST-NAME:PORT-NUMBER' to use a network connection.", name, name); | |
790 | ||
791 | target_preopen (from_tty); | |
792 | ||
793 | /* Setup pattern for register dump */ | |
794 | ||
795 | if (mon_ops->register_pattern) | |
796 | compile_pattern (mon_ops->register_pattern, ®ister_pattern, | |
797 | register_fastmap); | |
798 | ||
799 | if (mon_ops->getmem.resp_delim) | |
800 | compile_pattern (mon_ops->getmem.resp_delim, &getmem_resp_delim_pattern, | |
801 | getmem_resp_delim_fastmap); | |
802 | ||
803 | unpush_target (targ_ops); | |
804 | ||
805 | if (dev_name) | |
806 | free (dev_name); | |
807 | dev_name = strsave (args); | |
808 | ||
809 | monitor_desc = SERIAL_OPEN (dev_name); | |
810 | ||
811 | if (!monitor_desc) | |
812 | perror_with_name (dev_name); | |
813 | ||
814 | if (baud_rate != -1) | |
815 | { | |
816 | if (SERIAL_SETBAUDRATE (monitor_desc, baud_rate)) | |
817 | { | |
818 | SERIAL_CLOSE (monitor_desc); | |
819 | perror_with_name (dev_name); | |
820 | } | |
821 | } | |
c5aa993b | 822 | |
c906108c SS |
823 | SERIAL_RAW (monitor_desc); |
824 | ||
825 | SERIAL_FLUSH_INPUT (monitor_desc); | |
826 | ||
827 | /* some systems only work with 2 stop bits */ | |
828 | ||
829 | SERIAL_SETSTOPBITS (monitor_desc, mon_ops->stopbits); | |
830 | ||
831 | current_monitor = mon_ops; | |
832 | ||
833 | /* See if we can wake up the monitor. First, try sending a stop sequence, | |
834 | then send the init strings. Last, remove all breakpoints. */ | |
835 | ||
836 | if (current_monitor->stop) | |
837 | { | |
838 | monitor_stop (); | |
839 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) | |
c5aa993b JM |
840 | { |
841 | RDEBUG (("EXP Open echo\n")); | |
842 | monitor_expect_prompt (NULL, 0); | |
843 | } | |
c906108c SS |
844 | } |
845 | ||
846 | /* wake up the monitor and see if it's alive */ | |
847 | for (p = mon_ops->init; *p != NULL; p++) | |
848 | { | |
849 | /* Some of the characters we send may not be echoed, | |
c5aa993b JM |
850 | but we hope to get a prompt at the end of it all. */ |
851 | ||
c906108c | 852 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) |
c5aa993b | 853 | monitor_printf (*p); |
c906108c | 854 | else |
c5aa993b | 855 | monitor_printf_noecho (*p); |
c906108c SS |
856 | monitor_expect_prompt (NULL, 0); |
857 | } | |
858 | ||
859 | SERIAL_FLUSH_INPUT (monitor_desc); | |
860 | ||
9e086581 JM |
861 | /* Alloc breakpoints */ |
862 | if (mon_ops->set_break != NULL) | |
863 | { | |
864 | if (mon_ops->num_breakpoints == 0) | |
865 | mon_ops->num_breakpoints = 8; | |
866 | ||
867 | breakaddr = (CORE_ADDR *) xmalloc (mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
868 | memset (breakaddr, 0, mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
869 | } | |
870 | ||
c906108c SS |
871 | /* Remove all breakpoints */ |
872 | ||
873 | if (mon_ops->clr_all_break) | |
874 | { | |
875 | monitor_printf (mon_ops->clr_all_break); | |
876 | monitor_expect_prompt (NULL, 0); | |
877 | } | |
878 | ||
879 | if (from_tty) | |
880 | printf_unfiltered ("Remote target %s connected to %s\n", name, dev_name); | |
881 | ||
882 | push_target (targ_ops); | |
883 | ||
884 | inferior_pid = 42000; /* Make run command think we are busy... */ | |
885 | ||
886 | /* Give monitor_wait something to read */ | |
887 | ||
888 | monitor_printf (current_monitor->line_term); | |
889 | ||
890 | if (current_monitor->flags & MO_HAS_BLOCKWRITES) | |
891 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory_block); | |
892 | else | |
893 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory); | |
894 | start_remote (); | |
895 | } | |
896 | ||
897 | /* Close out all files and local state before this target loses | |
898 | control. */ | |
899 | ||
900 | void | |
901 | monitor_close (quitting) | |
902 | int quitting; | |
903 | { | |
904 | if (monitor_desc) | |
905 | SERIAL_CLOSE (monitor_desc); | |
9e086581 JM |
906 | |
907 | /* Free breakpoint memory */ | |
908 | if (breakaddr != NULL) | |
909 | { | |
910 | free (breakaddr); | |
911 | breakaddr = NULL; | |
912 | } | |
913 | ||
c906108c SS |
914 | monitor_desc = NULL; |
915 | } | |
916 | ||
917 | /* Terminate the open connection to the remote debugger. Use this | |
918 | when you want to detach and do something else with your gdb. */ | |
919 | ||
920 | static void | |
921 | monitor_detach (args, from_tty) | |
922 | char *args; | |
923 | int from_tty; | |
924 | { | |
925 | pop_target (); /* calls monitor_close to do the real work */ | |
926 | if (from_tty) | |
927 | printf_unfiltered ("Ending remote %s debugging\n", target_shortname); | |
928 | } | |
929 | ||
930 | /* Convert VALSTR into the target byte-ordered value of REGNO and store it. */ | |
931 | ||
932 | char * | |
933 | monitor_supply_register (regno, valstr) | |
934 | int regno; | |
935 | char *valstr; | |
936 | { | |
937 | unsigned int val; | |
938 | unsigned char regbuf[MAX_REGISTER_RAW_SIZE]; | |
939 | char *p; | |
940 | ||
941 | val = strtoul (valstr, &p, 16); | |
c5aa993b | 942 | RDEBUG (("Supplying Register %d %s\n", regno, valstr)); |
c906108c SS |
943 | |
944 | if (val == 0 && valstr == p) | |
945 | error ("monitor_supply_register (%d): bad value from monitor: %s.", | |
946 | regno, valstr); | |
947 | ||
948 | /* supply register stores in target byte order, so swap here */ | |
949 | ||
950 | store_unsigned_integer (regbuf, REGISTER_RAW_SIZE (regno), val); | |
951 | ||
952 | supply_register (regno, regbuf); | |
953 | ||
954 | return p; | |
955 | } | |
956 | ||
957 | /* Tell the remote machine to resume. */ | |
958 | ||
959 | void | |
960 | flush_monitor_dcache () | |
961 | { | |
962 | dcache_flush (remote_dcache); | |
963 | } | |
964 | ||
965 | static void | |
966 | monitor_resume (pid, step, sig) | |
967 | int pid, step; | |
968 | enum target_signal sig; | |
969 | { | |
970 | /* Some monitors require a different command when starting a program */ | |
c5aa993b | 971 | RDEBUG (("MON resume\n")); |
c906108c SS |
972 | if (current_monitor->flags & MO_RUN_FIRST_TIME && first_time == 1) |
973 | { | |
974 | first_time = 0; | |
975 | monitor_printf ("run\r"); | |
976 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) | |
c5aa993b | 977 | dump_reg_flag = 1; |
c906108c SS |
978 | return; |
979 | } | |
980 | dcache_flush (remote_dcache); | |
981 | if (step) | |
982 | monitor_printf (current_monitor->step); | |
983 | else | |
984 | { | |
985 | if (current_monitor->continue_hook) | |
c5aa993b JM |
986 | (*current_monitor->continue_hook) (); |
987 | else | |
988 | monitor_printf (current_monitor->cont); | |
c906108c SS |
989 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) |
990 | dump_reg_flag = 1; | |
991 | } | |
992 | } | |
993 | ||
994 | /* Parse the output of a register dump command. A monitor specific | |
995 | regexp is used to extract individual register descriptions of the | |
996 | form REG=VAL. Each description is split up into a name and a value | |
997 | string which are passed down to monitor specific code. */ | |
998 | ||
999 | static void | |
1000 | parse_register_dump (buf, len) | |
1001 | char *buf; | |
1002 | int len; | |
1003 | { | |
c5aa993b JM |
1004 | RDEBUG (("MON Parsing register dump\n")) |
1005 | while (1) | |
c906108c SS |
1006 | { |
1007 | int regnamelen, vallen; | |
1008 | char *regname, *val; | |
1009 | /* Element 0 points to start of register name, and element 1 | |
c5aa993b | 1010 | points to the start of the register value. */ |
c906108c SS |
1011 | struct re_registers register_strings; |
1012 | ||
1013 | memset (®ister_strings, 0, sizeof (struct re_registers)); | |
1014 | ||
1015 | if (re_search (®ister_pattern, buf, len, 0, len, | |
1016 | ®ister_strings) == -1) | |
1017 | break; | |
1018 | ||
1019 | regnamelen = register_strings.end[1] - register_strings.start[1]; | |
1020 | regname = buf + register_strings.start[1]; | |
1021 | vallen = register_strings.end[2] - register_strings.start[2]; | |
1022 | val = buf + register_strings.start[2]; | |
1023 | ||
1024 | current_monitor->supply_register (regname, regnamelen, val, vallen); | |
1025 | ||
1026 | buf += register_strings.end[0]; | |
1027 | len -= register_strings.end[0]; | |
1028 | } | |
1029 | } | |
1030 | ||
1031 | /* Send ^C to target to halt it. Target will respond, and send us a | |
1032 | packet. */ | |
1033 | ||
1034 | static void | |
1035 | monitor_interrupt (signo) | |
1036 | int signo; | |
1037 | { | |
1038 | /* If this doesn't work, try more severe steps. */ | |
1039 | signal (signo, monitor_interrupt_twice); | |
c5aa993b | 1040 | |
c906108c SS |
1041 | if (remote_debug) |
1042 | printf_unfiltered ("monitor_interrupt called\n"); | |
1043 | ||
1044 | target_stop (); | |
1045 | } | |
1046 | ||
1047 | /* The user typed ^C twice. */ | |
1048 | ||
1049 | static void | |
1050 | monitor_interrupt_twice (signo) | |
1051 | int signo; | |
1052 | { | |
1053 | signal (signo, ofunc); | |
c5aa993b | 1054 | |
c906108c SS |
1055 | monitor_interrupt_query (); |
1056 | ||
1057 | signal (signo, monitor_interrupt); | |
1058 | } | |
1059 | ||
1060 | /* Ask the user what to do when an interrupt is received. */ | |
1061 | ||
1062 | static void | |
1063 | monitor_interrupt_query () | |
1064 | { | |
1065 | target_terminal_ours (); | |
1066 | ||
1067 | if (query ("Interrupted while waiting for the program.\n\ | |
1068 | Give up (and stop debugging it)? ")) | |
1069 | { | |
1070 | target_mourn_inferior (); | |
1071 | return_to_top_level (RETURN_QUIT); | |
1072 | } | |
1073 | ||
1074 | target_terminal_inferior (); | |
1075 | } | |
1076 | ||
1077 | static void | |
1078 | monitor_wait_cleanup (old_timeout) | |
1079 | void *old_timeout; | |
1080 | { | |
c5aa993b | 1081 | timeout = *(int *) old_timeout; |
c906108c SS |
1082 | signal (SIGINT, ofunc); |
1083 | in_monitor_wait = 0; | |
1084 | } | |
1085 | ||
1086 | ||
1087 | ||
c5aa993b JM |
1088 | void |
1089 | monitor_wait_filter (char *buf, | |
1090 | int bufmax, | |
1091 | int *ext_resp_len, | |
1092 | struct target_waitstatus *status | |
1093 | ) | |
c906108c | 1094 | { |
c5aa993b | 1095 | int resp_len; |
c906108c SS |
1096 | do |
1097 | { | |
1098 | resp_len = monitor_expect_prompt (buf, bufmax); | |
c5aa993b | 1099 | *ext_resp_len = resp_len; |
c906108c SS |
1100 | |
1101 | if (resp_len <= 0) | |
1102 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1103 | } | |
1104 | while (resp_len < 0); | |
1105 | ||
1106 | /* Print any output characters that were preceded by ^O. */ | |
1107 | /* FIXME - This would be great as a user settabgle flag */ | |
1108 | if (remote_debug || | |
1109 | current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
1110 | { | |
1111 | int i; | |
1112 | ||
1113 | for (i = 0; i < resp_len - 1; i++) | |
1114 | if (buf[i] == 0x0f) | |
1115 | putchar_unfiltered (buf[++i]); | |
1116 | } | |
1117 | } | |
1118 | ||
1119 | ||
1120 | ||
1121 | /* Wait until the remote machine stops, then return, storing status in | |
1122 | status just as `wait' would. */ | |
1123 | ||
1124 | static int | |
1125 | monitor_wait (pid, status) | |
1126 | int pid; | |
1127 | struct target_waitstatus *status; | |
1128 | { | |
1129 | int old_timeout = timeout; | |
1130 | char buf[1024]; | |
1131 | int resp_len; | |
1132 | struct cleanup *old_chain; | |
1133 | ||
1134 | status->kind = TARGET_WAITKIND_EXITED; | |
1135 | status->value.integer = 0; | |
1136 | ||
1137 | old_chain = make_cleanup (monitor_wait_cleanup, &old_timeout); | |
c5aa993b | 1138 | RDEBUG (("MON wait\n")) |
c906108c | 1139 | |
7a292a7a | 1140 | #if 0 |
c5aa993b JM |
1141 | /* This is somthing other than a maintenance command */ |
1142 | in_monitor_wait = 1; | |
c906108c SS |
1143 | timeout = watchdog > 0 ? watchdog : -1; |
1144 | #else | |
c5aa993b | 1145 | timeout = -1; /* Don't time out -- user program is running. */ |
c906108c SS |
1146 | #endif |
1147 | ||
1148 | ofunc = (void (*)()) signal (SIGINT, monitor_interrupt); | |
1149 | ||
1150 | if (current_monitor->wait_filter) | |
c5aa993b JM |
1151 | (*current_monitor->wait_filter) (buf, sizeof (buf), &resp_len, status); |
1152 | else | |
1153 | monitor_wait_filter (buf, sizeof (buf), &resp_len, status); | |
1154 | ||
1155 | #if 0 /* Transferred to monitor wait filter */ | |
c906108c SS |
1156 | do |
1157 | { | |
1158 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1159 | ||
1160 | if (resp_len <= 0) | |
1161 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1162 | } | |
1163 | while (resp_len < 0); | |
1164 | ||
1165 | /* Print any output characters that were preceded by ^O. */ | |
1166 | /* FIXME - This would be great as a user settabgle flag */ | |
1167 | if (remote_debug || | |
1168 | current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
1169 | { | |
1170 | int i; | |
1171 | ||
1172 | for (i = 0; i < resp_len - 1; i++) | |
1173 | if (buf[i] == 0x0f) | |
1174 | putchar_unfiltered (buf[++i]); | |
1175 | } | |
c5aa993b | 1176 | #endif |
c906108c SS |
1177 | |
1178 | signal (SIGINT, ofunc); | |
1179 | ||
1180 | timeout = old_timeout; | |
1181 | #if 0 | |
1182 | if (dump_reg_flag && current_monitor->dump_registers) | |
1183 | { | |
1184 | dump_reg_flag = 0; | |
1185 | monitor_printf (current_monitor->dump_registers); | |
1186 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1187 | } | |
1188 | ||
1189 | if (current_monitor->register_pattern) | |
1190 | parse_register_dump (buf, resp_len); | |
1191 | #else | |
c5aa993b JM |
1192 | RDEBUG (("Wait fetching registers after stop\n")); |
1193 | monitor_dump_regs (); | |
1194 | #endif | |
c906108c SS |
1195 | |
1196 | status->kind = TARGET_WAITKIND_STOPPED; | |
1197 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1198 | ||
1199 | discard_cleanups (old_chain); | |
1200 | ||
1201 | in_monitor_wait = 0; | |
1202 | ||
1203 | return inferior_pid; | |
1204 | } | |
1205 | ||
1206 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns | |
1207 | errno value. */ | |
1208 | ||
1209 | static void | |
1210 | monitor_fetch_register (regno) | |
1211 | int regno; | |
1212 | { | |
1213 | char *name; | |
c5aa993b JM |
1214 | static char zerobuf[MAX_REGISTER_RAW_SIZE] = |
1215 | {0}; | |
c906108c SS |
1216 | char regbuf[MAX_REGISTER_RAW_SIZE * 2 + 1]; |
1217 | int i; | |
1218 | ||
1219 | name = current_monitor->regnames[regno]; | |
c5aa993b | 1220 | RDEBUG (("MON fetchreg %d '%s'\n", regno, name ? name : "(null name)")) |
c906108c | 1221 | |
c5aa993b | 1222 | if (!name || (*name == '\0')) |
7a292a7a SS |
1223 | { |
1224 | RDEBUG (("No register known for %d\n", regno)) | |
c5aa993b | 1225 | supply_register (regno, zerobuf); |
c906108c SS |
1226 | return; |
1227 | } | |
1228 | ||
1229 | /* send the register examine command */ | |
1230 | ||
1231 | monitor_printf (current_monitor->getreg.cmd, name); | |
1232 | ||
1233 | /* If RESP_DELIM is specified, we search for that as a leading | |
1234 | delimiter for the register value. Otherwise, we just start | |
1235 | searching from the start of the buf. */ | |
1236 | ||
1237 | if (current_monitor->getreg.resp_delim) | |
1238 | { | |
c5aa993b JM |
1239 | RDEBUG (("EXP getreg.resp_delim\n")) |
1240 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); | |
c906108c SS |
1241 | /* Handle case of first 32 registers listed in pairs. */ |
1242 | if (current_monitor->flags & MO_32_REGS_PAIRED | |
7a292a7a | 1243 | && (regno & 1) != 0 && regno < 32) |
c5aa993b JM |
1244 | { |
1245 | RDEBUG (("EXP getreg.resp_delim\n")); | |
c906108c SS |
1246 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); |
1247 | } | |
1248 | } | |
1249 | ||
1250 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set */ | |
c5aa993b | 1251 | if (current_monitor->flags & MO_HEX_PREFIX) |
c906108c SS |
1252 | { |
1253 | int c; | |
1254 | c = readchar (timeout); | |
1255 | while (c == ' ') | |
1256 | c = readchar (timeout); | |
1257 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1258 | ; | |
1259 | else | |
c5aa993b JM |
1260 | error ("Bad value returned from monitor while fetching register %x.", |
1261 | regno); | |
c906108c SS |
1262 | } |
1263 | ||
1264 | /* Read upto the maximum number of hex digits for this register, skipping | |
1265 | spaces, but stop reading if something else is seen. Some monitors | |
1266 | like to drop leading zeros. */ | |
1267 | ||
1268 | for (i = 0; i < REGISTER_RAW_SIZE (regno) * 2; i++) | |
1269 | { | |
1270 | int c; | |
1271 | c = readchar (timeout); | |
1272 | while (c == ' ') | |
1273 | c = readchar (timeout); | |
1274 | ||
1275 | if (!isxdigit (c)) | |
1276 | break; | |
1277 | ||
1278 | regbuf[i] = c; | |
1279 | } | |
1280 | ||
1281 | regbuf[i] = '\000'; /* terminate the number */ | |
c5aa993b | 1282 | RDEBUG (("REGVAL '%s'\n", regbuf)); |
c906108c SS |
1283 | |
1284 | /* If TERM is present, we wait for that to show up. Also, (if TERM | |
1285 | is present), we will send TERM_CMD if that is present. In any | |
1286 | case, we collect all of the output into buf, and then wait for | |
1287 | the normal prompt. */ | |
1288 | ||
1289 | if (current_monitor->getreg.term) | |
1290 | { | |
c5aa993b JM |
1291 | RDEBUG (("EXP getreg.term\n")) |
1292 | monitor_expect (current_monitor->getreg.term, NULL, 0); /* get response */ | |
c906108c SS |
1293 | } |
1294 | ||
1295 | if (current_monitor->getreg.term_cmd) | |
c5aa993b JM |
1296 | { |
1297 | RDEBUG (("EMIT getreg.term.cmd\n")) | |
c906108c SS |
1298 | monitor_printf (current_monitor->getreg.term_cmd); |
1299 | } | |
c5aa993b JM |
1300 | if (!current_monitor->getreg.term || /* Already expected or */ |
1301 | current_monitor->getreg.term_cmd) /* ack expected */ | |
1302 | monitor_expect_prompt (NULL, 0); /* get response */ | |
c906108c SS |
1303 | |
1304 | monitor_supply_register (regno, regbuf); | |
1305 | } | |
1306 | ||
1307 | /* Sometimes, it takes several commands to dump the registers */ | |
1308 | /* This is a primitive for use by variations of monitor interfaces in | |
1309 | case they need to compose the operation. | |
c5aa993b JM |
1310 | */ |
1311 | int | |
1312 | monitor_dump_reg_block (char *block_cmd) | |
c906108c SS |
1313 | { |
1314 | char buf[1024]; | |
1315 | int resp_len; | |
1316 | monitor_printf (block_cmd); | |
1317 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1318 | parse_register_dump (buf, resp_len); | |
c5aa993b | 1319 | return 1; |
c906108c SS |
1320 | } |
1321 | ||
1322 | ||
1323 | /* Read the remote registers into the block regs. */ | |
1324 | /* Call the specific function if it has been provided */ | |
1325 | ||
1326 | static void | |
1327 | monitor_dump_regs () | |
1328 | { | |
1329 | char buf[1024]; | |
1330 | int resp_len; | |
1331 | if (current_monitor->dumpregs) | |
c5aa993b JM |
1332 | (*(current_monitor->dumpregs)) (); /* call supplied function */ |
1333 | else if (current_monitor->dump_registers) /* default version */ | |
1334 | { | |
1335 | monitor_printf (current_monitor->dump_registers); | |
c906108c SS |
1336 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
1337 | parse_register_dump (buf, resp_len); | |
1338 | } | |
1339 | else | |
c5aa993b | 1340 | abort (); /* Need some way to read registers */ |
c906108c SS |
1341 | } |
1342 | ||
1343 | static void | |
1344 | monitor_fetch_registers (regno) | |
1345 | int regno; | |
1346 | { | |
c5aa993b JM |
1347 | RDEBUG (("MON fetchregs\n")); |
1348 | if (current_monitor->getreg.cmd) | |
c906108c SS |
1349 | { |
1350 | if (regno >= 0) | |
1351 | { | |
1352 | monitor_fetch_register (regno); | |
1353 | return; | |
1354 | } | |
1355 | ||
1356 | for (regno = 0; regno < NUM_REGS; regno++) | |
1357 | monitor_fetch_register (regno); | |
1358 | } | |
c5aa993b JM |
1359 | else |
1360 | { | |
1361 | monitor_dump_regs (); | |
1362 | } | |
c906108c SS |
1363 | } |
1364 | ||
1365 | /* Store register REGNO, or all if REGNO == 0. Return errno value. */ | |
1366 | ||
1367 | static void | |
1368 | monitor_store_register (regno) | |
1369 | int regno; | |
1370 | { | |
1371 | char *name; | |
1372 | unsigned int val; | |
1373 | ||
1374 | name = current_monitor->regnames[regno]; | |
1375 | if (!name || (*name == '\0')) | |
c5aa993b JM |
1376 | { |
1377 | RDEBUG (("MON Cannot store unknown register\n")) | |
1378 | return; | |
c906108c SS |
1379 | } |
1380 | ||
1381 | val = read_register (regno); | |
c5aa993b | 1382 | RDEBUG (("MON storeg %d %08x\n", regno, (unsigned int) val)) |
c906108c SS |
1383 | |
1384 | /* send the register deposit command */ | |
1385 | ||
c5aa993b | 1386 | if (current_monitor->flags & MO_REGISTER_VALUE_FIRST) |
c906108c SS |
1387 | monitor_printf (current_monitor->setreg.cmd, val, name); |
1388 | else if (current_monitor->flags & MO_SETREG_INTERACTIVE) | |
1389 | monitor_printf (current_monitor->setreg.cmd, name); | |
1390 | else | |
1391 | monitor_printf (current_monitor->setreg.cmd, name, val); | |
1392 | ||
1393 | if (current_monitor->setreg.term) | |
c5aa993b JM |
1394 | { |
1395 | RDEBUG (("EXP setreg.term\n")) | |
1396 | monitor_expect (current_monitor->setreg.term, NULL, 0); | |
c906108c SS |
1397 | if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
1398 | monitor_printf ("%x\r", val); | |
1399 | monitor_expect_prompt (NULL, 0); | |
1400 | } | |
1401 | else | |
1402 | monitor_expect_prompt (NULL, 0); | |
c5aa993b JM |
1403 | if (current_monitor->setreg.term_cmd) /* Mode exit required */ |
1404 | { | |
1405 | RDEBUG (("EXP setreg_termcmd\n")); | |
1406 | monitor_printf ("%s", current_monitor->setreg.term_cmd); | |
1407 | monitor_expect_prompt (NULL, 0); | |
c906108c | 1408 | } |
c5aa993b | 1409 | } /* monitor_store_register */ |
c906108c SS |
1410 | |
1411 | /* Store the remote registers. */ | |
1412 | ||
1413 | static void | |
1414 | monitor_store_registers (regno) | |
1415 | int regno; | |
1416 | { | |
1417 | if (regno >= 0) | |
1418 | { | |
1419 | monitor_store_register (regno); | |
1420 | return; | |
1421 | } | |
1422 | ||
1423 | for (regno = 0; regno < NUM_REGS; regno++) | |
1424 | monitor_store_register (regno); | |
1425 | } | |
1426 | ||
1427 | /* Get ready to modify the registers array. On machines which store | |
1428 | individual registers, this doesn't need to do anything. On machines | |
1429 | which store all the registers in one fell swoop, this makes sure | |
1430 | that registers contains all the registers from the program being | |
1431 | debugged. */ | |
1432 | ||
1433 | static void | |
1434 | monitor_prepare_to_store () | |
1435 | { | |
1436 | /* Do nothing, since we can store individual regs */ | |
1437 | } | |
1438 | ||
1439 | static void | |
1440 | monitor_files_info (ops) | |
1441 | struct target_ops *ops; | |
1442 | { | |
1443 | printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baud_rate); | |
1444 | } | |
1445 | ||
1446 | static int | |
1447 | monitor_write_memory (memaddr, myaddr, len) | |
1448 | CORE_ADDR memaddr; | |
1449 | char *myaddr; | |
1450 | int len; | |
1451 | { | |
c5aa993b | 1452 | unsigned int val, hostval; |
c906108c SS |
1453 | char *cmd; |
1454 | int i; | |
1455 | ||
c5aa993b | 1456 | RDEBUG (("MON write %d %08x\n", len, (unsigned long) memaddr)) |
c906108c | 1457 | |
c5aa993b | 1458 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
c906108c SS |
1459 | memaddr = ADDR_BITS_REMOVE (memaddr); |
1460 | ||
1461 | /* Use memory fill command for leading 0 bytes. */ | |
1462 | ||
1463 | if (current_monitor->fill) | |
1464 | { | |
1465 | for (i = 0; i < len; i++) | |
1466 | if (myaddr[i] != 0) | |
1467 | break; | |
1468 | ||
1469 | if (i > 4) /* More than 4 zeros is worth doing */ | |
1470 | { | |
c5aa993b | 1471 | RDEBUG (("MON FILL %d\n", i)) |
c906108c | 1472 | if (current_monitor->flags & MO_FILL_USES_ADDR) |
c5aa993b JM |
1473 | monitor_printf (current_monitor->fill, memaddr, (memaddr + i) - 1, 0); |
1474 | else | |
1475 | monitor_printf (current_monitor->fill, memaddr, i, 0); | |
c906108c SS |
1476 | |
1477 | monitor_expect_prompt (NULL, 0); | |
1478 | ||
1479 | return i; | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | #if 0 | |
1484 | /* Can't actually use long longs if VAL is an int (nice idea, though). */ | |
1485 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->setmem.cmdll) | |
1486 | { | |
1487 | len = 8; | |
1488 | cmd = current_monitor->setmem.cmdll; | |
1489 | } | |
1490 | else | |
1491 | #endif | |
1492 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->setmem.cmdl) | |
1493 | { | |
1494 | len = 4; | |
1495 | cmd = current_monitor->setmem.cmdl; | |
1496 | } | |
1497 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->setmem.cmdw) | |
1498 | { | |
1499 | len = 2; | |
1500 | cmd = current_monitor->setmem.cmdw; | |
1501 | } | |
1502 | else | |
1503 | { | |
1504 | len = 1; | |
1505 | cmd = current_monitor->setmem.cmdb; | |
1506 | } | |
1507 | ||
1508 | val = extract_unsigned_integer (myaddr, len); | |
c5aa993b | 1509 | |
c906108c | 1510 | if (len == 4) |
c5aa993b JM |
1511 | { |
1512 | hostval = *(unsigned int *) myaddr; | |
1513 | RDEBUG (("Hostval(%08x) val(%08x)\n", hostval, val)); | |
c906108c SS |
1514 | } |
1515 | ||
1516 | ||
1517 | if (current_monitor->flags & MO_NO_ECHO_ON_SETMEM) | |
1518 | monitor_printf_noecho (cmd, memaddr, val); | |
1519 | else if (current_monitor->flags & MO_SETMEM_INTERACTIVE) | |
1520 | { | |
1521 | ||
1522 | monitor_printf_noecho (cmd, memaddr); | |
1523 | ||
1524 | if (current_monitor->setmem.term) | |
c5aa993b JM |
1525 | { |
1526 | RDEBUG (("EXP setmem.term")); | |
c906108c SS |
1527 | monitor_expect (current_monitor->setmem.term, NULL, 0); |
1528 | monitor_printf ("%x\r", val); | |
1529 | } | |
1530 | if (current_monitor->setmem.term_cmd) | |
c5aa993b JM |
1531 | { /* Emit this to get out of the memory editing state */ |
1532 | monitor_printf ("%s", current_monitor->setmem.term_cmd); | |
c906108c SS |
1533 | /* Drop through to expecting a prompt */ |
1534 | } | |
1535 | } | |
1536 | else | |
1537 | monitor_printf (cmd, memaddr, val); | |
1538 | ||
1539 | monitor_expect_prompt (NULL, 0); | |
1540 | ||
1541 | return len; | |
1542 | } | |
1543 | ||
1544 | ||
1545 | static int | |
c5aa993b JM |
1546 | monitor_write_even_block (memaddr, myaddr, len) |
1547 | CORE_ADDR memaddr; | |
1548 | char *myaddr; | |
1549 | int len; | |
c906108c | 1550 | { |
c5aa993b JM |
1551 | unsigned int val; |
1552 | int written = 0;; | |
c906108c | 1553 | /* Enter the sub mode */ |
c5aa993b JM |
1554 | monitor_printf (current_monitor->setmem.cmdl, memaddr); |
1555 | monitor_expect_prompt (NULL, 0); | |
1556 | ||
c906108c SS |
1557 | while (len) |
1558 | { | |
c5aa993b JM |
1559 | val = extract_unsigned_integer (myaddr, 4); /* REALLY */ |
1560 | monitor_printf ("%x\r", val); | |
1561 | myaddr += 4; | |
1562 | memaddr += 4; | |
1563 | written += 4; | |
1564 | RDEBUG ((" @ %08x\n", memaddr)) | |
c906108c | 1565 | /* If we wanted to, here we could validate the address */ |
c5aa993b | 1566 | monitor_expect_prompt (NULL, 0); |
c906108c SS |
1567 | } |
1568 | /* Now exit the sub mode */ | |
1569 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1570 | monitor_expect_prompt (NULL, 0); |
1571 | return written; | |
c906108c SS |
1572 | } |
1573 | ||
1574 | ||
c5aa993b JM |
1575 | static int |
1576 | monitor_write_memory_bytes (memaddr, myaddr, len) | |
1577 | CORE_ADDR memaddr; | |
1578 | char *myaddr; | |
1579 | int len; | |
c906108c | 1580 | { |
c5aa993b JM |
1581 | unsigned char val; |
1582 | int written = 0; | |
1583 | if (len == 0) | |
1584 | return 0; | |
c906108c | 1585 | /* Enter the sub mode */ |
c5aa993b JM |
1586 | monitor_printf (current_monitor->setmem.cmdb, memaddr); |
1587 | monitor_expect_prompt (NULL, 0); | |
c906108c SS |
1588 | while (len) |
1589 | { | |
c5aa993b JM |
1590 | val = *myaddr; |
1591 | monitor_printf ("%x\r", val); | |
1592 | myaddr++; | |
1593 | memaddr++; | |
1594 | written++; | |
c906108c | 1595 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1596 | monitor_expect_prompt (NULL, 0); |
1597 | len--; | |
c906108c SS |
1598 | } |
1599 | /* Now exit the sub mode */ | |
1600 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1601 | monitor_expect_prompt (NULL, 0); |
1602 | return written; | |
c906108c SS |
1603 | } |
1604 | ||
1605 | ||
1606 | static void | |
c5aa993b | 1607 | longlongendswap (unsigned char *a) |
c906108c | 1608 | { |
c5aa993b JM |
1609 | int i, j; |
1610 | unsigned char x; | |
1611 | i = 0; | |
1612 | j = 7; | |
c906108c | 1613 | while (i < 4) |
c5aa993b JM |
1614 | { |
1615 | x = *(a + i); | |
1616 | *(a + i) = *(a + j); | |
1617 | *(a + j) = x; | |
1618 | i++, j--; | |
c906108c SS |
1619 | } |
1620 | } | |
1621 | /* Format 32 chars of long long value, advance the pointer */ | |
c5aa993b JM |
1622 | static char *hexlate = "0123456789abcdef"; |
1623 | static char * | |
1624 | longlong_hexchars (unsigned long long value, | |
1625 | char *outbuff) | |
c906108c | 1626 | { |
c5aa993b JM |
1627 | if (value == 0) |
1628 | { | |
1629 | *outbuff++ = '0'; | |
1630 | return outbuff; | |
1631 | } | |
c906108c | 1632 | else |
c5aa993b JM |
1633 | { |
1634 | static unsigned char disbuf[8]; /* disassembly buffer */ | |
1635 | unsigned char *scan, *limit; /* loop controls */ | |
1636 | unsigned char c, nib; | |
1637 | int leadzero = 1; | |
1638 | scan = disbuf; | |
1639 | limit = scan + 8; | |
1640 | { | |
1641 | unsigned long long *dp; | |
1642 | dp = (unsigned long long *) scan; | |
1643 | *dp = value; | |
c906108c | 1644 | } |
c5aa993b | 1645 | longlongendswap (disbuf); /* FIXME: ONly on big endian hosts */ |
c906108c | 1646 | while (scan < limit) |
7a292a7a | 1647 | { |
c5aa993b | 1648 | c = *scan++; /* a byte of our long long value */ |
c906108c | 1649 | if (leadzero) |
7a292a7a SS |
1650 | { |
1651 | if (c == 0) | |
1652 | continue; | |
1653 | else | |
c5aa993b | 1654 | leadzero = 0; /* henceforth we print even zeroes */ |
7a292a7a | 1655 | } |
c5aa993b | 1656 | nib = c >> 4; /* high nibble bits */ |
7a292a7a | 1657 | *outbuff++ = hexlate[nib]; |
c5aa993b | 1658 | nib = c & 0x0f; /* low nibble bits */ |
7a292a7a | 1659 | *outbuff++ = hexlate[nib]; |
c906108c | 1660 | } |
c5aa993b | 1661 | return outbuff; |
c906108c | 1662 | } |
c5aa993b | 1663 | } /* longlong_hexchars */ |
c906108c SS |
1664 | |
1665 | ||
1666 | ||
1667 | /* I am only going to call this when writing virtual byte streams. | |
1668 | Which possably entails endian conversions | |
c5aa993b JM |
1669 | */ |
1670 | static int | |
1671 | monitor_write_memory_longlongs (memaddr, myaddr, len) | |
1672 | CORE_ADDR memaddr; | |
1673 | char *myaddr; | |
1674 | int len; | |
c906108c | 1675 | { |
c5aa993b JM |
1676 | static char hexstage[20]; /* At least 16 digits required, plus null */ |
1677 | char *endstring; | |
1678 | long long *llptr; | |
1679 | long long value; | |
1680 | int written = 0; | |
1681 | llptr = (unsigned long long *) myaddr; | |
1682 | if (len == 0) | |
1683 | return 0; | |
1684 | monitor_printf (current_monitor->setmem.cmdll, memaddr); | |
1685 | monitor_expect_prompt (NULL, 0); | |
1686 | while (len >= 8) | |
1687 | { | |
1688 | value = *llptr; | |
1689 | endstring = longlong_hexchars (*llptr, hexstage); | |
1690 | *endstring = '\0'; /* NUll terminate for printf */ | |
1691 | monitor_printf ("%s\r", hexstage); | |
1692 | llptr++; | |
1693 | memaddr += 8; | |
1694 | written += 8; | |
c906108c | 1695 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1696 | monitor_expect_prompt (NULL, 0); |
1697 | len -= 8; | |
c906108c SS |
1698 | } |
1699 | /* Now exit the sub mode */ | |
1700 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1701 | monitor_expect_prompt (NULL, 0); |
1702 | return written; | |
1703 | } /* */ | |
c906108c SS |
1704 | |
1705 | ||
1706 | ||
1707 | /* ----- MONITOR_WRITE_MEMORY_BLOCK ---------------------------- */ | |
1708 | /* This is for the large blocks of memory which may occur in downloading. | |
1709 | And for monitors which use interactive entry, | |
1710 | And for monitors which do not have other downloading methods. | |
1711 | Without this, we will end up calling monitor_write_memory many times | |
1712 | and do the entry and exit of the sub mode many times | |
1713 | This currently assumes... | |
c5aa993b JM |
1714 | MO_SETMEM_INTERACTIVE |
1715 | ! MO_NO_ECHO_ON_SETMEM | |
1716 | To use this, the you have to patch the monitor_cmds block with | |
1717 | this function. Otherwise, its not tuned up for use by all | |
1718 | monitor variations. | |
1719 | */ | |
c906108c | 1720 | |
c5aa993b JM |
1721 | static int |
1722 | monitor_write_memory_block (memaddr, myaddr, len) | |
1723 | CORE_ADDR memaddr; | |
1724 | char *myaddr; | |
1725 | int len; | |
c906108c | 1726 | { |
c5aa993b JM |
1727 | int written; |
1728 | written = 0; | |
c906108c | 1729 | /* FIXME: This would be a good place to put the zero test */ |
c5aa993b | 1730 | #if 1 |
c906108c | 1731 | if ((len > 8) && (((len & 0x07)) == 0) && current_monitor->setmem.cmdll) |
c5aa993b JM |
1732 | { |
1733 | return monitor_write_memory_longlongs (memaddr, myaddr, len); | |
1734 | } | |
1735 | #endif | |
1736 | #if 0 | |
c906108c SS |
1737 | if (len > 4) |
1738 | { | |
c5aa993b JM |
1739 | int sublen; |
1740 | written = monitor_write_even_block (memaddr, myaddr, len); | |
c906108c | 1741 | /* Adjust calling parameters by written amount */ |
c5aa993b JM |
1742 | memaddr += written; |
1743 | myaddr += written; | |
1744 | len -= written; | |
c906108c SS |
1745 | } |
1746 | #endif | |
c5aa993b JM |
1747 | written = monitor_write_memory_bytes (memaddr, myaddr, len); |
1748 | return written; | |
c906108c SS |
1749 | } |
1750 | ||
1751 | /* This is an alternate form of monitor_read_memory which is used for monitors | |
1752 | which can only read a single byte/word/etc. at a time. */ | |
1753 | ||
1754 | static int | |
1755 | monitor_read_memory_single (memaddr, myaddr, len) | |
1756 | CORE_ADDR memaddr; | |
1757 | char *myaddr; | |
1758 | int len; | |
1759 | { | |
1760 | unsigned int val; | |
c5aa993b | 1761 | char membuf[sizeof (int) * 2 + 1]; |
c906108c SS |
1762 | char *p; |
1763 | char *cmd; | |
1764 | int i; | |
1765 | ||
c5aa993b | 1766 | RDEBUG (("MON read single\n")); |
c906108c SS |
1767 | #if 0 |
1768 | /* Can't actually use long longs (nice idea, though). In fact, the | |
1769 | call to strtoul below will fail if it tries to convert a value | |
1770 | that's too big to fit in a long. */ | |
1771 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->getmem.cmdll) | |
1772 | { | |
1773 | len = 8; | |
1774 | cmd = current_monitor->getmem.cmdll; | |
1775 | } | |
1776 | else | |
1777 | #endif | |
1778 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->getmem.cmdl) | |
1779 | { | |
1780 | len = 4; | |
1781 | cmd = current_monitor->getmem.cmdl; | |
1782 | } | |
1783 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->getmem.cmdw) | |
1784 | { | |
1785 | len = 2; | |
1786 | cmd = current_monitor->getmem.cmdw; | |
1787 | } | |
1788 | else | |
1789 | { | |
1790 | len = 1; | |
1791 | cmd = current_monitor->getmem.cmdb; | |
1792 | } | |
1793 | ||
1794 | /* Send the examine command. */ | |
1795 | ||
1796 | monitor_printf (cmd, memaddr); | |
1797 | ||
1798 | /* If RESP_DELIM is specified, we search for that as a leading | |
1799 | delimiter for the memory value. Otherwise, we just start | |
1800 | searching from the start of the buf. */ | |
1801 | ||
1802 | if (current_monitor->getmem.resp_delim) | |
c5aa993b JM |
1803 | { |
1804 | RDEBUG (("EXP getmem.resp_delim\n")); | |
c906108c SS |
1805 | monitor_expect_regexp (&getmem_resp_delim_pattern, NULL, 0); |
1806 | } | |
1807 | ||
1808 | /* Now, read the appropriate number of hex digits for this loc, | |
1809 | skipping spaces. */ | |
1810 | ||
1811 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */ | |
c5aa993b | 1812 | if (current_monitor->flags & MO_HEX_PREFIX) |
c906108c SS |
1813 | { |
1814 | int c; | |
1815 | ||
1816 | c = readchar (timeout); | |
1817 | while (c == ' ') | |
1818 | c = readchar (timeout); | |
1819 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1820 | ; | |
1821 | else | |
1822 | monitor_error ("monitor_read_memory_single (0x%x): bad response from monitor: %.*s%c.", | |
1823 | memaddr, i, membuf, c); | |
1824 | } | |
1825 | for (i = 0; i < len * 2; i++) | |
1826 | { | |
1827 | int c; | |
1828 | ||
1829 | while (1) | |
1830 | { | |
1831 | c = readchar (timeout); | |
1832 | if (isxdigit (c)) | |
1833 | break; | |
1834 | if (c == ' ') | |
1835 | continue; | |
1836 | ||
1837 | monitor_error ("monitor_read_memory_single (0x%x): bad response from monitor: %.*s%c.", | |
1838 | memaddr, i, membuf, c); | |
1839 | } | |
1840 | ||
1841 | membuf[i] = c; | |
1842 | } | |
1843 | ||
1844 | membuf[i] = '\000'; /* terminate the number */ | |
1845 | ||
1846 | /* If TERM is present, we wait for that to show up. Also, (if TERM is | |
1847 | present), we will send TERM_CMD if that is present. In any case, we collect | |
1848 | all of the output into buf, and then wait for the normal prompt. */ | |
1849 | ||
1850 | if (current_monitor->getmem.term) | |
1851 | { | |
c5aa993b | 1852 | monitor_expect (current_monitor->getmem.term, NULL, 0); /* get response */ |
c906108c SS |
1853 | |
1854 | if (current_monitor->getmem.term_cmd) | |
1855 | { | |
1856 | monitor_printf (current_monitor->getmem.term_cmd); | |
1857 | monitor_expect_prompt (NULL, 0); | |
1858 | } | |
1859 | } | |
1860 | else | |
c5aa993b | 1861 | monitor_expect_prompt (NULL, 0); /* get response */ |
c906108c SS |
1862 | |
1863 | p = membuf; | |
1864 | val = strtoul (membuf, &p, 16); | |
1865 | ||
1866 | if (val == 0 && membuf == p) | |
1867 | monitor_error ("monitor_read_memory_single (0x%x): bad value from monitor: %s.", | |
1868 | memaddr, 0, membuf, 0); | |
1869 | ||
1870 | /* supply register stores in target byte order, so swap here */ | |
1871 | ||
1872 | store_unsigned_integer (myaddr, len, val); | |
1873 | ||
1874 | return len; | |
1875 | } | |
1876 | ||
1877 | /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's | |
1878 | memory at MEMADDR. Returns length moved. Currently, we do no more | |
1879 | than 16 bytes at a time. */ | |
1880 | ||
1881 | static int | |
1882 | monitor_read_memory (memaddr, myaddr, len) | |
1883 | CORE_ADDR memaddr; | |
1884 | char *myaddr; | |
1885 | int len; | |
1886 | { | |
1887 | unsigned int val; | |
1888 | char buf[512]; | |
1889 | char *p, *p1; | |
1890 | int resp_len; | |
1891 | int i; | |
1892 | CORE_ADDR dumpaddr; | |
1893 | ||
1894 | if (len <= 0) | |
1895 | { | |
1896 | RDEBUG (("Zero length call to monitor_read_memory\n")); | |
1897 | return 0; | |
1898 | } | |
1899 | ||
c5aa993b JM |
1900 | if (remote_debug) |
1901 | printf ("MON read block ta(%08x) ha(%08x) %d\n", | |
1902 | (unsigned long) memaddr, (unsigned long) myaddr, len); | |
c906108c SS |
1903 | |
1904 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1905 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
1906 | ||
1907 | if (current_monitor->flags & MO_GETMEM_READ_SINGLE) | |
1908 | return monitor_read_memory_single (memaddr, myaddr, len); | |
1909 | ||
1910 | len = min (len, 16); | |
1911 | ||
1912 | /* Some dumpers align the first data with the preceeding 16 | |
1913 | byte boundary. Some print blanks and start at the | |
1914 | requested boundary. EXACT_DUMPADDR | |
c5aa993b | 1915 | */ |
c906108c SS |
1916 | |
1917 | dumpaddr = (current_monitor->flags & MO_EXACT_DUMPADDR) | |
c5aa993b | 1918 | ? memaddr : memaddr & ~0x0f; |
c906108c SS |
1919 | |
1920 | /* See if xfer would cross a 16 byte boundary. If so, clip it. */ | |
1921 | if (((memaddr ^ (memaddr + len - 1)) & ~0xf) != 0) | |
1922 | len = ((memaddr + len) & ~0xf) - memaddr; | |
1923 | ||
1924 | /* send the memory examine command */ | |
1925 | ||
1926 | if (current_monitor->flags & MO_GETMEM_NEEDS_RANGE) | |
7a292a7a | 1927 | monitor_printf (current_monitor->getmem.cmdb, memaddr, memaddr + len); |
c906108c SS |
1928 | else if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1929 | monitor_printf (current_monitor->getmem.cmdb, dumpaddr); | |
1930 | else | |
1931 | monitor_printf (current_monitor->getmem.cmdb, memaddr, len); | |
1932 | ||
1933 | /* If TERM is present, we wait for that to show up. Also, (if TERM | |
1934 | is present), we will send TERM_CMD if that is present. In any | |
1935 | case, we collect all of the output into buf, and then wait for | |
1936 | the normal prompt. */ | |
1937 | ||
1938 | if (current_monitor->getmem.term) | |
1939 | { | |
c5aa993b | 1940 | resp_len = monitor_expect (current_monitor->getmem.term, buf, sizeof buf); /* get response */ |
c906108c SS |
1941 | |
1942 | if (resp_len <= 0) | |
1943 | monitor_error ("monitor_read_memory (0x%x): excessive response from monitor: %.*s.", | |
1944 | memaddr, resp_len, buf, 0); | |
1945 | ||
1946 | if (current_monitor->getmem.term_cmd) | |
1947 | { | |
1948 | SERIAL_WRITE (monitor_desc, current_monitor->getmem.term_cmd, | |
1949 | strlen (current_monitor->getmem.term_cmd)); | |
1950 | monitor_expect_prompt (NULL, 0); | |
1951 | } | |
1952 | } | |
1953 | else | |
c5aa993b | 1954 | resp_len = monitor_expect_prompt (buf, sizeof buf); /* get response */ |
c906108c SS |
1955 | |
1956 | p = buf; | |
1957 | ||
1958 | /* If RESP_DELIM is specified, we search for that as a leading | |
1959 | delimiter for the values. Otherwise, we just start searching | |
1960 | from the start of the buf. */ | |
1961 | ||
1962 | if (current_monitor->getmem.resp_delim) | |
1963 | { | |
1964 | int retval, tmp; | |
1965 | struct re_registers resp_strings; | |
c5aa993b | 1966 | RDEBUG (("MON getmem.resp_delim %s\n", current_monitor->getmem.resp_delim)); |
c906108c SS |
1967 | |
1968 | memset (&resp_strings, 0, sizeof (struct re_registers)); | |
1969 | tmp = strlen (p); | |
1970 | retval = re_search (&getmem_resp_delim_pattern, p, tmp, 0, tmp, | |
1971 | &resp_strings); | |
1972 | ||
1973 | if (retval < 0) | |
1974 | monitor_error ("monitor_read_memory (0x%x): bad response from monitor: %.*s.", | |
1975 | memaddr, resp_len, buf, 0); | |
1976 | ||
1977 | p += resp_strings.end[0]; | |
1978 | #if 0 | |
1979 | p = strstr (p, current_monitor->getmem.resp_delim); | |
1980 | if (!p) | |
1981 | monitor_error ("monitor_read_memory (0x%x): bad response from monitor: %.*s.", | |
1982 | memaddr, resp_len, buf, 0); | |
1983 | p += strlen (current_monitor->getmem.resp_delim); | |
1984 | #endif | |
1985 | } | |
c5aa993b JM |
1986 | if (remote_debug) |
1987 | printf ("MON scanning %d ,%08x '%s'\n", len, p, p); | |
c906108c SS |
1988 | if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1989 | { | |
c5aa993b JM |
1990 | char c; |
1991 | int fetched = 0; | |
c906108c | 1992 | i = len; |
c5aa993b | 1993 | c = *p; |
c906108c | 1994 | |
c5aa993b JM |
1995 | |
1996 | while (!(c == '\000' || c == '\n' || c == '\r') && i > 0) | |
1997 | { | |
1998 | if (isxdigit (c)) | |
1999 | { | |
2000 | if ((dumpaddr >= memaddr) && (i > 0)) | |
2001 | { | |
2002 | val = fromhex (c) * 16 + fromhex (*(p + 1)); | |
c906108c | 2003 | *myaddr++ = val; |
c5aa993b JM |
2004 | if (remote_debug) |
2005 | printf ("[%02x]", val); | |
c906108c | 2006 | --i; |
c5aa993b | 2007 | fetched++; |
c906108c SS |
2008 | } |
2009 | ++dumpaddr; | |
2010 | ++p; | |
2011 | } | |
c5aa993b JM |
2012 | ++p; /* skip a blank or other non hex char */ |
2013 | c = *p; | |
c906108c | 2014 | } |
c5aa993b JM |
2015 | if (fetched == 0) |
2016 | error ("Failed to read via monitor"); | |
2017 | if (remote_debug) | |
2018 | printf ("\n"); | |
2019 | return fetched; /* Return the number of bytes actually read */ | |
c906108c | 2020 | } |
c5aa993b | 2021 | RDEBUG (("MON scanning bytes\n")); |
c906108c SS |
2022 | |
2023 | for (i = len; i > 0; i--) | |
2024 | { | |
2025 | /* Skip non-hex chars, but bomb on end of string and newlines */ | |
2026 | ||
2027 | while (1) | |
2028 | { | |
2029 | if (isxdigit (*p)) | |
2030 | break; | |
2031 | ||
2032 | if (*p == '\000' || *p == '\n' || *p == '\r') | |
2033 | monitor_error ("monitor_read_memory (0x%x): badly terminated response from monitor: %.*s", | |
2034 | memaddr, resp_len, buf, 0); | |
2035 | p++; | |
2036 | } | |
2037 | ||
2038 | val = strtoul (p, &p1, 16); | |
2039 | ||
2040 | if (val == 0 && p == p1) | |
2041 | monitor_error ("monitor_read_memory (0x%x): bad value from monitor: %.*s.", | |
2042 | memaddr, resp_len, buf, 0); | |
2043 | ||
2044 | *myaddr++ = val; | |
2045 | ||
2046 | if (i == 1) | |
2047 | break; | |
2048 | ||
2049 | p = p1; | |
2050 | } | |
2051 | ||
2052 | return len; | |
2053 | } | |
2054 | ||
2055 | static int | |
2056 | monitor_xfer_memory (memaddr, myaddr, len, write, target) | |
2057 | CORE_ADDR memaddr; | |
2058 | char *myaddr; | |
2059 | int len; | |
2060 | int write; | |
c5aa993b | 2061 | struct target_ops *target; /* ignored */ |
c906108c SS |
2062 | { |
2063 | return dcache_xfer_memory (remote_dcache, memaddr, myaddr, len, write); | |
2064 | } | |
2065 | ||
2066 | static void | |
2067 | monitor_kill () | |
2068 | { | |
c5aa993b | 2069 | return; /* ignore attempts to kill target system */ |
c906108c SS |
2070 | } |
2071 | ||
2072 | /* All we actually do is set the PC to the start address of exec_bfd, and start | |
2073 | the program at that point. */ | |
2074 | ||
2075 | static void | |
2076 | monitor_create_inferior (exec_file, args, env) | |
2077 | char *exec_file; | |
2078 | char *args; | |
2079 | char **env; | |
2080 | { | |
2081 | if (args && (*args != '\000')) | |
2082 | error ("Args are not supported by the monitor."); | |
2083 | ||
2084 | first_time = 1; | |
2085 | clear_proceed_status (); | |
2086 | proceed (bfd_get_start_address (exec_bfd), TARGET_SIGNAL_0, 0); | |
2087 | } | |
2088 | ||
2089 | /* Clean up when a program exits. | |
2090 | The program actually lives on in the remote processor's RAM, and may be | |
2091 | run again without a download. Don't leave it full of breakpoint | |
2092 | instructions. */ | |
2093 | ||
2094 | static void | |
2095 | monitor_mourn_inferior () | |
2096 | { | |
2097 | unpush_target (targ_ops); | |
2098 | generic_mourn_inferior (); /* Do all the proper things now */ | |
2099 | } | |
2100 | ||
c906108c SS |
2101 | /* Tell the monitor to add a breakpoint. */ |
2102 | ||
2103 | static int | |
2104 | monitor_insert_breakpoint (addr, shadow) | |
2105 | CORE_ADDR addr; | |
2106 | char *shadow; | |
2107 | { | |
2108 | int i; | |
2109 | unsigned char *bp; | |
2110 | int bplen; | |
2111 | ||
c5aa993b JM |
2112 | RDEBUG (("MON inst bkpt %08x\n", addr)) |
2113 | if (current_monitor->set_break == NULL) | |
c906108c SS |
2114 | error ("No set_break defined for this monitor"); |
2115 | ||
2116 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2117 | addr = ADDR_BITS_REMOVE (addr); | |
2118 | ||
2119 | /* Determine appropriate breakpoint size for this address. */ | |
2120 | bp = memory_breakpoint_from_pc (&addr, &bplen); | |
2121 | ||
9e086581 | 2122 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2123 | { |
2124 | if (breakaddr[i] == 0) | |
2125 | { | |
2126 | breakaddr[i] = addr; | |
2127 | monitor_read_memory (addr, shadow, bplen); | |
2128 | monitor_printf (current_monitor->set_break, addr); | |
2129 | monitor_expect_prompt (NULL, 0); | |
2130 | return 0; | |
2131 | } | |
2132 | } | |
2133 | ||
9e086581 | 2134 | error ("Too many breakpoints (> %d) for monitor.", current_monitor->num_breakpoints); |
c906108c SS |
2135 | } |
2136 | ||
2137 | /* Tell the monitor to remove a breakpoint. */ | |
2138 | ||
2139 | static int | |
2140 | monitor_remove_breakpoint (addr, shadow) | |
2141 | CORE_ADDR addr; | |
2142 | char *shadow; | |
2143 | { | |
2144 | int i; | |
2145 | ||
c5aa993b JM |
2146 | RDEBUG (("MON rmbkpt %08x\n", addr)) |
2147 | if (current_monitor->clr_break == NULL) | |
c906108c SS |
2148 | error ("No clr_break defined for this monitor"); |
2149 | ||
2150 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2151 | addr = ADDR_BITS_REMOVE (addr); | |
2152 | ||
9e086581 | 2153 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2154 | { |
2155 | if (breakaddr[i] == addr) | |
2156 | { | |
2157 | breakaddr[i] = 0; | |
2158 | /* some monitors remove breakpoints based on the address */ | |
2159 | if (current_monitor->flags & MO_CLR_BREAK_USES_ADDR) | |
2160 | monitor_printf (current_monitor->clr_break, addr); | |
2161 | else if (current_monitor->flags & MO_CLR_BREAK_1_BASED) | |
2162 | monitor_printf (current_monitor->clr_break, i + 1); | |
2163 | else | |
2164 | monitor_printf (current_monitor->clr_break, i); | |
2165 | monitor_expect_prompt (NULL, 0); | |
2166 | return 0; | |
2167 | } | |
2168 | } | |
2169 | fprintf_unfiltered (gdb_stderr, | |
2170 | "Can't find breakpoint associated with 0x%x\n", addr); | |
2171 | return 1; | |
2172 | } | |
2173 | ||
2174 | /* monitor_wait_srec_ack -- wait for the target to send an acknowledgement for | |
2175 | an S-record. Return non-zero if the ACK is received properly. */ | |
2176 | ||
2177 | static int | |
2178 | monitor_wait_srec_ack () | |
2179 | { | |
2180 | int i, ch; | |
2181 | ||
2182 | if (current_monitor->flags & MO_SREC_ACK_PLUS) | |
2183 | { | |
2184 | return (readchar (timeout) == '+'); | |
2185 | } | |
2186 | else if (current_monitor->flags & MO_SREC_ACK_ROTATE) | |
2187 | { | |
2188 | /* Eat two backspaces, a "rotating" char (|/-\), and a space. */ | |
2189 | if ((ch = readchar (1)) < 0) | |
2190 | return 0; | |
2191 | if ((ch = readchar (1)) < 0) | |
2192 | return 0; | |
2193 | if ((ch = readchar (1)) < 0) | |
2194 | return 0; | |
2195 | if ((ch = readchar (1)) < 0) | |
2196 | return 0; | |
2197 | } | |
2198 | return 1; | |
2199 | } | |
2200 | ||
2201 | /* monitor_load -- download a file. */ | |
2202 | ||
2203 | static void | |
2204 | monitor_load (file, from_tty) | |
c5aa993b JM |
2205 | char *file; |
2206 | int from_tty; | |
c906108c SS |
2207 | { |
2208 | dcache_flush (remote_dcache); | |
c5aa993b | 2209 | RDEBUG (("MON load\n")) |
c906108c | 2210 | |
c5aa993b | 2211 | if (current_monitor->load_routine) |
c906108c SS |
2212 | current_monitor->load_routine (monitor_desc, file, hashmark); |
2213 | else | |
2214 | { /* The default is ascii S-records */ | |
2215 | int n; | |
2216 | unsigned long load_offset; | |
2217 | char buf[128]; | |
2218 | ||
2219 | /* enable user to specify address for downloading as 2nd arg to load */ | |
2220 | n = sscanf (file, "%s 0x%lx", buf, &load_offset); | |
2221 | if (n > 1) | |
2222 | file = buf; | |
2223 | else | |
2224 | load_offset = 0; | |
2225 | ||
2226 | monitor_printf (current_monitor->load); | |
2227 | if (current_monitor->loadresp) | |
2228 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
2229 | ||
2230 | load_srec (monitor_desc, file, (bfd_vma) load_offset, | |
2231 | 32, SREC_ALL, hashmark, | |
2232 | current_monitor->flags & MO_SREC_ACK ? | |
c5aa993b | 2233 | monitor_wait_srec_ack : NULL); |
c906108c SS |
2234 | |
2235 | monitor_expect_prompt (NULL, 0); | |
2236 | } | |
2237 | ||
2238 | /* Finally, make the PC point at the start address */ | |
2239 | ||
2240 | if (exec_bfd) | |
2241 | write_pc (bfd_get_start_address (exec_bfd)); | |
2242 | ||
2243 | inferior_pid = 0; /* No process now */ | |
2244 | ||
2245 | /* This is necessary because many things were based on the PC at the time that | |
2246 | we attached to the monitor, which is no longer valid now that we have loaded | |
2247 | new code (and just changed the PC). Another way to do this might be to call | |
2248 | normal_stop, except that the stack may not be valid, and things would get | |
2249 | horribly confused... */ | |
2250 | ||
2251 | clear_symtab_users (); | |
2252 | } | |
2253 | ||
2254 | static void | |
2255 | monitor_stop () | |
2256 | { | |
c5aa993b | 2257 | RDEBUG (("MON stop\n")); |
c906108c SS |
2258 | if ((current_monitor->flags & MO_SEND_BREAK_ON_STOP) != 0) |
2259 | SERIAL_SEND_BREAK (monitor_desc); | |
2260 | if (current_monitor->stop) | |
2261 | monitor_printf_noecho (current_monitor->stop); | |
2262 | } | |
2263 | ||
2264 | /* Put a command string, in args, out to MONITOR. Output from MONITOR | |
2265 | is placed on the users terminal until the prompt is seen. FIXME: We | |
2266 | read the characters ourseleves here cause of a nasty echo. */ | |
2267 | ||
2268 | static void | |
2269 | monitor_command (args, from_tty) | |
2270 | char *args; | |
2271 | int from_tty; | |
2272 | { | |
2273 | char *p; | |
2274 | int resp_len; | |
2275 | char buf[1000]; | |
2276 | ||
2277 | if (monitor_desc == NULL) | |
2278 | error ("monitor target not open."); | |
2279 | ||
2280 | p = current_monitor->prompt; | |
2281 | ||
2282 | /* Send the command. Note that if no args were supplied, then we're | |
2283 | just sending the monitor a newline, which is sometimes useful. */ | |
2284 | ||
2285 | monitor_printf ("%s\r", (args ? args : "")); | |
2286 | ||
2287 | resp_len = monitor_expect_prompt (buf, sizeof buf); | |
2288 | ||
c5aa993b | 2289 | fputs_unfiltered (buf, gdb_stdout); /* Output the response */ |
c906108c SS |
2290 | } |
2291 | ||
2292 | /* Convert hex digit A to a number. */ | |
2293 | ||
2294 | #if 0 | |
2295 | static int | |
2296 | from_hex (a) | |
2297 | int a; | |
c5aa993b | 2298 | { |
c906108c SS |
2299 | if (a >= '0' && a <= '9') |
2300 | return a - '0'; | |
2301 | if (a >= 'a' && a <= 'f') | |
2302 | return a - 'a' + 10; | |
2303 | if (a >= 'A' && a <= 'F') | |
2304 | return a - 'A' + 10; | |
2305 | ||
2306 | error ("Reply contains invalid hex digit 0x%x", a); | |
2307 | } | |
2308 | #endif | |
2309 | ||
2310 | char * | |
2311 | monitor_get_dev_name () | |
2312 | { | |
2313 | return dev_name; | |
2314 | } | |
2315 | ||
2316 | static struct target_ops monitor_ops; | |
2317 | ||
2318 | static void | |
2319 | init_base_monitor_ops (void) | |
2320 | { | |
2321 | monitor_ops.to_shortname = NULL; | |
2322 | monitor_ops.to_longname = NULL; | |
2323 | monitor_ops.to_doc = NULL; | |
2324 | monitor_ops.to_open = NULL; | |
2325 | monitor_ops.to_close = monitor_close; | |
2326 | monitor_ops.to_attach = NULL; | |
2327 | monitor_ops.to_post_attach = NULL; | |
2328 | monitor_ops.to_require_attach = NULL; | |
2329 | monitor_ops.to_detach = monitor_detach; | |
2330 | monitor_ops.to_require_detach = NULL; | |
2331 | monitor_ops.to_resume = monitor_resume; | |
2332 | monitor_ops.to_wait = monitor_wait; | |
2333 | monitor_ops.to_post_wait = NULL; | |
2334 | monitor_ops.to_fetch_registers = monitor_fetch_registers; | |
2335 | monitor_ops.to_store_registers = monitor_store_registers; | |
2336 | monitor_ops.to_prepare_to_store = monitor_prepare_to_store; | |
2337 | monitor_ops.to_xfer_memory = monitor_xfer_memory; | |
2338 | monitor_ops.to_files_info = monitor_files_info; | |
2339 | monitor_ops.to_insert_breakpoint = monitor_insert_breakpoint; | |
2340 | monitor_ops.to_remove_breakpoint = monitor_remove_breakpoint; | |
2341 | monitor_ops.to_terminal_init = 0; | |
2342 | monitor_ops.to_terminal_inferior = 0; | |
2343 | monitor_ops.to_terminal_ours_for_output = 0; | |
2344 | monitor_ops.to_terminal_ours = 0; | |
2345 | monitor_ops.to_terminal_info = 0; | |
2346 | monitor_ops.to_kill = monitor_kill; | |
2347 | monitor_ops.to_load = monitor_load; | |
2348 | monitor_ops.to_lookup_symbol = 0; | |
2349 | monitor_ops.to_create_inferior = monitor_create_inferior; | |
2350 | monitor_ops.to_post_startup_inferior = NULL; | |
2351 | monitor_ops.to_acknowledge_created_inferior = NULL; | |
2352 | monitor_ops.to_clone_and_follow_inferior = NULL; | |
2353 | monitor_ops.to_post_follow_inferior_by_clone = NULL; | |
2354 | monitor_ops.to_insert_fork_catchpoint = NULL; | |
2355 | monitor_ops.to_remove_fork_catchpoint = NULL; | |
2356 | monitor_ops.to_insert_vfork_catchpoint = NULL; | |
2357 | monitor_ops.to_remove_vfork_catchpoint = NULL; | |
2358 | monitor_ops.to_has_forked = NULL; | |
2359 | monitor_ops.to_has_vforked = NULL; | |
2360 | monitor_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
2361 | monitor_ops.to_post_follow_vfork = NULL; | |
2362 | monitor_ops.to_insert_exec_catchpoint = NULL; | |
2363 | monitor_ops.to_remove_exec_catchpoint = NULL; | |
2364 | monitor_ops.to_has_execd = NULL; | |
2365 | monitor_ops.to_reported_exec_events_per_exec_call = NULL; | |
2366 | monitor_ops.to_has_exited = NULL; | |
2367 | monitor_ops.to_mourn_inferior = monitor_mourn_inferior; | |
2368 | monitor_ops.to_can_run = 0; | |
2369 | monitor_ops.to_notice_signals = 0; | |
2370 | monitor_ops.to_thread_alive = 0; | |
2371 | monitor_ops.to_stop = monitor_stop; | |
2372 | monitor_ops.to_pid_to_exec_file = NULL; | |
2373 | monitor_ops.to_core_file_to_sym_file = NULL; | |
2374 | monitor_ops.to_stratum = process_stratum; | |
2375 | monitor_ops.DONT_USE = 0; | |
2376 | monitor_ops.to_has_all_memory = 1; | |
2377 | monitor_ops.to_has_memory = 1; | |
2378 | monitor_ops.to_has_stack = 1; | |
2379 | monitor_ops.to_has_registers = 1; | |
2380 | monitor_ops.to_has_execution = 1; | |
2381 | monitor_ops.to_sections = 0; | |
2382 | monitor_ops.to_sections_end = 0; | |
2383 | monitor_ops.to_magic = OPS_MAGIC; | |
c5aa993b | 2384 | } /* init_base_monitor_ops */ |
c906108c SS |
2385 | |
2386 | /* Init the target_ops structure pointed at by OPS */ | |
2387 | ||
2388 | void | |
2389 | init_monitor_ops (ops) | |
2390 | struct target_ops *ops; | |
2391 | { | |
2392 | if (monitor_ops.to_magic != OPS_MAGIC) | |
2393 | init_base_monitor_ops (); | |
2394 | ||
2395 | memcpy (ops, &monitor_ops, sizeof monitor_ops); | |
2396 | } | |
2397 | ||
2398 | /* Define additional commands that are usually only used by monitors. */ | |
2399 | ||
2400 | void | |
2401 | _initialize_remote_monitors () | |
2402 | { | |
2403 | init_base_monitor_ops (); | |
2404 | add_show_from_set (add_set_cmd ("hash", no_class, var_boolean, | |
c5aa993b | 2405 | (char *) &hashmark, |
c906108c SS |
2406 | "Set display of activity while downloading a file.\n\ |
2407 | When enabled, a hashmark \'#\' is displayed.", | |
c5aa993b | 2408 | &setlist), |
c906108c SS |
2409 | &showlist); |
2410 | ||
2411 | add_com ("monitor", class_obscure, monitor_command, | |
c5aa993b | 2412 | "Send a command to the debug monitor."); |
c906108c | 2413 | } |