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" | |
c906108c SS |
45 | #include <signal.h> |
46 | #include <ctype.h> | |
47 | #include "gdb_string.h" | |
48 | #include <sys/types.h> | |
49 | #include "command.h" | |
50 | #include "serial.h" | |
51 | #include "monitor.h" | |
52 | #include "gdbcmd.h" | |
53 | #include "inferior.h" | |
54 | #include "gnu-regex.h" | |
55 | #include "dcache.h" | |
56 | #include "srec.h" | |
57 | ||
58 | static char *dev_name; | |
59 | static struct target_ops *targ_ops; | |
60 | ||
61 | static void monitor_vsprintf PARAMS ((char *sndbuf, char *pattern, va_list args)); | |
62 | ||
63 | static int readchar PARAMS ((int timeout)); | |
64 | ||
c906108c SS |
65 | static void monitor_fetch_register PARAMS ((int regno)); |
66 | static void monitor_store_register PARAMS ((int regno)); | |
67 | ||
2df3850c JM |
68 | static void monitor_printable_string (char *newstr, char *oldstr, int len); |
69 | static void monitor_error (char *function, char *message, CORE_ADDR memaddr, int len, char *string, int final_char); | |
c906108c SS |
70 | static void monitor_detach PARAMS ((char *args, int from_tty)); |
71 | static void monitor_resume PARAMS ((int pid, int step, enum target_signal sig)); | |
72 | static void monitor_interrupt PARAMS ((int signo)); | |
73 | static void monitor_interrupt_twice PARAMS ((int signo)); | |
74 | static void monitor_interrupt_query PARAMS ((void)); | |
75 | static void monitor_wait_cleanup PARAMS ((void *old_timeout)); | |
76 | ||
c5aa993b | 77 | static int monitor_wait PARAMS ((int pid, struct target_waitstatus * status)); |
c906108c SS |
78 | static void monitor_fetch_registers PARAMS ((int regno)); |
79 | static void monitor_store_registers PARAMS ((int regno)); | |
80 | static void monitor_prepare_to_store PARAMS ((void)); | |
c5aa993b JM |
81 | static int monitor_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len, int write, struct target_ops * target)); |
82 | static void monitor_files_info PARAMS ((struct target_ops * ops)); | |
c906108c SS |
83 | static int monitor_insert_breakpoint PARAMS ((CORE_ADDR addr, char *shadow)); |
84 | static int monitor_remove_breakpoint PARAMS ((CORE_ADDR addr, char *shadow)); | |
85 | static void monitor_kill PARAMS ((void)); | |
86 | static void monitor_load PARAMS ((char *file, int from_tty)); | |
87 | static void monitor_mourn_inferior PARAMS ((void)); | |
88 | static void monitor_stop PARAMS ((void)); | |
89 | ||
c5aa993b JM |
90 | static int monitor_read_memory PARAMS ((CORE_ADDR addr, char *myaddr, int len)); |
91 | static int monitor_write_memory PARAMS ((CORE_ADDR addr, char *myaddr, int len)); | |
c906108c | 92 | static int monitor_write_memory_bytes PARAMS ((CORE_ADDR addr, |
c5aa993b JM |
93 | char *myaddr, int len)); |
94 | static int monitor_write_memory_block PARAMS (( | |
95 | CORE_ADDR memaddr, | |
96 | char *myaddr, | |
97 | int len)); | |
98 | static int monitor_expect_regexp PARAMS ((struct re_pattern_buffer * pat, | |
c906108c | 99 | char *buf, int buflen)); |
c5aa993b | 100 | static void monitor_dump_regs PARAMS ((void)); |
c906108c SS |
101 | #if 0 |
102 | static int from_hex PARAMS ((int a)); | |
103 | static unsigned long get_hex_word PARAMS ((void)); | |
104 | #endif | |
105 | static void parse_register_dump PARAMS ((char *, int)); | |
106 | ||
107 | static struct monitor_ops *current_monitor; | |
108 | ||
109 | static int hashmark; /* flag set by "set hash" */ | |
110 | ||
111 | static int timeout = 30; | |
112 | ||
113 | static int in_monitor_wait = 0; /* Non-zero means we are in monitor_wait() */ | |
114 | ||
c5aa993b | 115 | static void (*ofunc) (); /* Old SIGINT signal handler */ |
c906108c | 116 | |
9e086581 JM |
117 | static CORE_ADDR *breakaddr; |
118 | ||
c906108c SS |
119 | /* Descriptor for I/O to remote machine. Initialize it to NULL so |
120 | that monitor_open knows that we don't have a file open when the | |
121 | program starts. */ | |
122 | ||
123 | static serial_t monitor_desc = NULL; | |
124 | ||
125 | /* Pointer to regexp pattern matching data */ | |
126 | ||
127 | static struct re_pattern_buffer register_pattern; | |
128 | static char register_fastmap[256]; | |
129 | ||
130 | static struct re_pattern_buffer getmem_resp_delim_pattern; | |
131 | static char getmem_resp_delim_fastmap[256]; | |
132 | ||
133 | static int dump_reg_flag; /* Non-zero means do a dump_registers cmd when | |
134 | monitor_wait wakes up. */ | |
135 | ||
136 | static DCACHE *remote_dcache; | |
c5aa993b JM |
137 | static int first_time = 0; /* is this the first time we're executing after |
138 | gaving created the child proccess? */ | |
c906108c | 139 | |
d4f3574e SS |
140 | #define TARGET_BUF_SIZE 2048 |
141 | ||
2df3850c JM |
142 | /* Monitor specific debugging information. Typically only useful to |
143 | the developer of a new monitor interface. */ | |
c906108c | 144 | |
2df3850c JM |
145 | static void monitor_debug (const char *fmt, ...) ATTR_FORMAT(printf, 1, 2); |
146 | ||
147 | static int monitor_debug_p = 0; | |
148 | ||
149 | /* NOTE: This file alternates between monitor_debug_p and remote_debug | |
150 | when determining if debug information is printed. Perhaphs this | |
151 | could be simplified. */ | |
152 | ||
153 | static void | |
154 | monitor_debug (const char *fmt, ...) | |
155 | { | |
156 | if (monitor_debug_p) | |
157 | { | |
158 | va_list args; | |
159 | va_start (args, fmt); | |
160 | vfprintf_filtered (gdb_stdlog, fmt, args); | |
161 | va_end (args); | |
162 | } | |
163 | } | |
164 | ||
165 | ||
166 | /* Convert a string into a printable representation, Return # byte in | |
167 | the new string. When LEN is >0 it specifies the size of the | |
168 | string. Otherwize strlen(oldstr) is used. */ | |
169 | ||
170 | static void | |
171 | monitor_printable_string (char *newstr, char *oldstr, int len) | |
c906108c | 172 | { |
c906108c | 173 | int ch; |
2df3850c JM |
174 | int i; |
175 | ||
176 | if (len <= 0) | |
177 | len = strlen (oldstr); | |
c906108c | 178 | |
2df3850c | 179 | for (i = 0; i < len; i++) |
c906108c | 180 | { |
2df3850c | 181 | ch = oldstr[i]; |
c906108c | 182 | switch (ch) |
c5aa993b | 183 | { |
c906108c SS |
184 | default: |
185 | if (isprint (ch)) | |
186 | *newstr++ = ch; | |
187 | ||
188 | else | |
189 | { | |
190 | sprintf (newstr, "\\x%02x", ch & 0xff); | |
191 | newstr += 4; | |
192 | } | |
193 | break; | |
194 | ||
c5aa993b JM |
195 | case '\\': |
196 | *newstr++ = '\\'; | |
197 | *newstr++ = '\\'; | |
198 | break; | |
199 | case '\b': | |
200 | *newstr++ = '\\'; | |
201 | *newstr++ = 'b'; | |
202 | break; | |
203 | case '\f': | |
204 | *newstr++ = '\\'; | |
205 | *newstr++ = 't'; | |
206 | break; | |
207 | case '\n': | |
208 | *newstr++ = '\\'; | |
209 | *newstr++ = 'n'; | |
210 | break; | |
211 | case '\r': | |
212 | *newstr++ = '\\'; | |
213 | *newstr++ = 'r'; | |
214 | break; | |
215 | case '\t': | |
216 | *newstr++ = '\\'; | |
217 | *newstr++ = 't'; | |
218 | break; | |
219 | case '\v': | |
220 | *newstr++ = '\\'; | |
221 | *newstr++ = 'v'; | |
222 | break; | |
223 | } | |
c906108c SS |
224 | } |
225 | ||
226 | *newstr++ = '\0'; | |
c906108c SS |
227 | } |
228 | ||
229 | /* Print monitor errors with a string, converting the string to printable | |
230 | representation. */ | |
231 | ||
232 | static void | |
2df3850c JM |
233 | monitor_error (char *function, char *message, |
234 | CORE_ADDR memaddr, int len, char *string, int final_char) | |
c906108c | 235 | { |
c5aa993b | 236 | int real_len = (len == 0 && string != (char *) 0) ? strlen (string) : len; |
c906108c | 237 | char *safe_string = alloca ((real_len * 4) + 1); |
2df3850c | 238 | monitor_printable_string (safe_string, string, real_len); |
c906108c SS |
239 | |
240 | if (final_char) | |
2df3850c | 241 | error ("%s (0x%s): %s: %s%c", function, paddr_nz (memaddr), message, safe_string, final_char); |
c906108c | 242 | else |
2df3850c | 243 | error ("%s (0x%s): %s: %s", function, paddr_nz (memaddr), message, safe_string); |
c906108c SS |
244 | } |
245 | ||
246 | /* Convert hex digit A to a number. */ | |
247 | ||
248 | static int | |
249 | fromhex (a) | |
250 | int a; | |
251 | { | |
252 | if (a >= '0' && a <= '9') | |
253 | return a - '0'; | |
254 | else if (a >= 'a' && a <= 'f') | |
255 | return a - 'a' + 10; | |
c5aa993b JM |
256 | else if (a >= 'A' && a <= 'F') |
257 | return a - 'A' + 10; | |
c906108c | 258 | else |
c5aa993b | 259 | error ("Invalid hex digit %d", a); |
c906108c SS |
260 | } |
261 | ||
262 | /* monitor_vsprintf - similar to vsprintf but handles 64-bit addresses | |
263 | ||
264 | This function exists to get around the problem that many host platforms | |
265 | don't have a printf that can print 64-bit addresses. The %A format | |
266 | specification is recognized as a special case, and causes the argument | |
267 | to be printed as a 64-bit hexadecimal address. | |
268 | ||
269 | Only format specifiers of the form "[0-9]*[a-z]" are recognized. | |
270 | If it is a '%s' format, the argument is a string; otherwise the | |
271 | argument is assumed to be a long integer. | |
272 | ||
273 | %% is also turned into a single %. | |
c5aa993b JM |
274 | */ |
275 | ||
c906108c SS |
276 | static void |
277 | monitor_vsprintf (sndbuf, pattern, args) | |
278 | char *sndbuf; | |
279 | char *pattern; | |
280 | va_list args; | |
281 | { | |
282 | char format[10]; | |
283 | char fmt; | |
284 | char *p; | |
285 | int i; | |
286 | long arg_int; | |
287 | CORE_ADDR arg_addr; | |
288 | char *arg_string; | |
289 | ||
290 | for (p = pattern; *p; p++) | |
291 | { | |
292 | if (*p == '%') | |
293 | { | |
294 | /* Copy the format specifier to a separate buffer. */ | |
295 | format[0] = *p++; | |
296 | for (i = 1; *p >= '0' && *p <= '9' && i < (int) sizeof (format) - 2; | |
297 | i++, p++) | |
298 | format[i] = *p; | |
299 | format[i] = fmt = *p; | |
c5aa993b | 300 | format[i + 1] = '\0'; |
c906108c SS |
301 | |
302 | /* Fetch the next argument and print it. */ | |
303 | switch (fmt) | |
304 | { | |
305 | case '%': | |
306 | strcpy (sndbuf, "%"); | |
307 | break; | |
308 | case 'A': | |
309 | arg_addr = va_arg (args, CORE_ADDR); | |
310 | strcpy (sndbuf, paddr_nz (arg_addr)); | |
311 | break; | |
312 | case 's': | |
313 | arg_string = va_arg (args, char *); | |
314 | sprintf (sndbuf, format, arg_string); | |
315 | break; | |
316 | default: | |
317 | arg_int = va_arg (args, long); | |
318 | sprintf (sndbuf, format, arg_int); | |
319 | break; | |
320 | } | |
321 | sndbuf += strlen (sndbuf); | |
322 | } | |
323 | else | |
324 | *sndbuf++ = *p; | |
325 | } | |
326 | *sndbuf = '\0'; | |
327 | } | |
328 | ||
329 | ||
330 | /* monitor_printf_noecho -- Send data to monitor, but don't expect an echo. | |
331 | Works just like printf. */ | |
332 | ||
333 | void | |
c5aa993b | 334 | monitor_printf_noecho (char *pattern,...) |
c906108c SS |
335 | { |
336 | va_list args; | |
337 | char sndbuf[2000]; | |
338 | int len; | |
339 | ||
c906108c | 340 | va_start (args, pattern); |
c906108c SS |
341 | |
342 | monitor_vsprintf (sndbuf, pattern, args); | |
343 | ||
344 | len = strlen (sndbuf); | |
345 | if (len + 1 > sizeof sndbuf) | |
346 | abort (); | |
347 | ||
2df3850c | 348 | if (monitor_debug_p) |
c906108c SS |
349 | { |
350 | char *safe_string = (char *) alloca ((strlen (sndbuf) * 4) + 1); | |
2df3850c JM |
351 | monitor_printable_string (safe_string, sndbuf, 0); |
352 | fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string); | |
c906108c | 353 | } |
c5aa993b | 354 | |
c906108c SS |
355 | monitor_write (sndbuf, len); |
356 | } | |
357 | ||
358 | /* monitor_printf -- Send data to monitor and check the echo. Works just like | |
359 | printf. */ | |
360 | ||
361 | void | |
c5aa993b | 362 | monitor_printf (char *pattern,...) |
c906108c SS |
363 | { |
364 | va_list args; | |
365 | char sndbuf[2000]; | |
366 | int len; | |
367 | ||
c906108c | 368 | va_start (args, pattern); |
c906108c SS |
369 | |
370 | monitor_vsprintf (sndbuf, pattern, args); | |
371 | ||
372 | len = strlen (sndbuf); | |
373 | if (len + 1 > sizeof sndbuf) | |
374 | abort (); | |
375 | ||
2df3850c | 376 | if (monitor_debug_p) |
c906108c SS |
377 | { |
378 | char *safe_string = (char *) alloca ((len * 4) + 1); | |
2df3850c JM |
379 | monitor_printable_string (safe_string, sndbuf, 0); |
380 | fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string); | |
c906108c SS |
381 | } |
382 | ||
383 | monitor_write (sndbuf, len); | |
384 | ||
385 | /* We used to expect that the next immediate output was the characters we | |
386 | just output, but sometimes some extra junk appeared before the characters | |
387 | we expected, like an extra prompt, or a portmaster sending telnet negotiations. | |
388 | So, just start searching for what we sent, and skip anything unknown. */ | |
2df3850c JM |
389 | monitor_debug ("ExpectEcho\n"); |
390 | monitor_expect (sndbuf, (char *) 0, 0); | |
c906108c SS |
391 | } |
392 | ||
393 | ||
394 | /* Write characters to the remote system. */ | |
395 | ||
396 | void | |
397 | monitor_write (buf, buflen) | |
398 | char *buf; | |
399 | int buflen; | |
400 | { | |
c5aa993b | 401 | if (SERIAL_WRITE (monitor_desc, buf, buflen)) |
c906108c SS |
402 | fprintf_unfiltered (gdb_stderr, "SERIAL_WRITE failed: %s\n", |
403 | safe_strerror (errno)); | |
404 | } | |
405 | ||
406 | ||
407 | /* Read a binary character from the remote system, doing all the fancy | |
408 | timeout stuff, but without interpreting the character in any way, | |
409 | and without printing remote debug information. */ | |
410 | ||
411 | int | |
412 | monitor_readchar () | |
413 | { | |
414 | int c; | |
415 | int looping; | |
416 | ||
417 | do | |
418 | { | |
419 | looping = 0; | |
420 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
421 | ||
422 | if (c >= 0) | |
c5aa993b | 423 | c &= 0xff; /* don't lose bit 7 */ |
c906108c SS |
424 | } |
425 | while (looping); | |
426 | ||
427 | if (c >= 0) | |
428 | return c; | |
429 | ||
430 | if (c == SERIAL_TIMEOUT) | |
c5aa993b | 431 | error ("Timeout reading from remote system."); |
c906108c SS |
432 | |
433 | perror_with_name ("remote-monitor"); | |
434 | } | |
435 | ||
436 | ||
437 | /* Read a character from the remote system, doing all the fancy | |
438 | timeout stuff. */ | |
439 | ||
440 | static int | |
441 | readchar (timeout) | |
442 | int timeout; | |
443 | { | |
444 | int c; | |
c5aa993b JM |
445 | static enum |
446 | { | |
447 | last_random, last_nl, last_cr, last_crnl | |
448 | } | |
449 | state = last_random; | |
c906108c SS |
450 | int looping; |
451 | ||
452 | do | |
453 | { | |
454 | looping = 0; | |
455 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
456 | ||
457 | if (c >= 0) | |
458 | { | |
459 | c &= 0x7f; | |
c906108c SS |
460 | /* This seems to interfere with proper function of the |
461 | input stream */ | |
2df3850c | 462 | if (monitor_debug_p || remote_debug) |
c906108c SS |
463 | { |
464 | char buf[2]; | |
465 | buf[0] = c; | |
466 | buf[1] = '\0'; | |
467 | puts_debug ("read -->", buf, "<--"); | |
468 | } | |
c5aa993b | 469 | |
c906108c SS |
470 | } |
471 | ||
472 | /* Canonicialize \n\r combinations into one \r */ | |
473 | if ((current_monitor->flags & MO_HANDLE_NL) != 0) | |
474 | { | |
475 | if ((c == '\r' && state == last_nl) | |
476 | || (c == '\n' && state == last_cr)) | |
477 | { | |
478 | state = last_crnl; | |
479 | looping = 1; | |
480 | } | |
481 | else if (c == '\r') | |
482 | state = last_cr; | |
483 | else if (c != '\n') | |
484 | state = last_random; | |
485 | else | |
486 | { | |
487 | state = last_nl; | |
488 | c = '\r'; | |
489 | } | |
490 | } | |
491 | } | |
492 | while (looping); | |
493 | ||
494 | if (c >= 0) | |
495 | return c; | |
496 | ||
497 | if (c == SERIAL_TIMEOUT) | |
7a292a7a | 498 | #if 0 |
c906108c SS |
499 | /* I fail to see how detaching here can be useful */ |
500 | if (in_monitor_wait) /* Watchdog went off */ | |
501 | { | |
502 | target_mourn_inferior (); | |
503 | error ("GDB serial timeout has expired. Target detached.\n"); | |
504 | } | |
505 | else | |
506 | #endif | |
507 | error ("Timeout reading from remote system."); | |
508 | ||
509 | perror_with_name ("remote-monitor"); | |
510 | } | |
511 | ||
512 | /* Scan input from the remote system, until STRING is found. If BUF is non- | |
513 | zero, then collect input until we have collected either STRING or BUFLEN-1 | |
514 | chars. In either case we terminate BUF with a 0. If input overflows BUF | |
515 | because STRING can't be found, return -1, else return number of chars in BUF | |
516 | (minus the terminating NUL). Note that in the non-overflow case, STRING | |
517 | will be at the end of BUF. */ | |
518 | ||
519 | int | |
520 | monitor_expect (string, buf, buflen) | |
521 | char *string; | |
522 | char *buf; | |
523 | int buflen; | |
524 | { | |
525 | char *p = string; | |
526 | int obuflen = buflen; | |
527 | int c; | |
528 | extern struct target_ops *targ_ops; | |
529 | ||
2df3850c | 530 | if (monitor_debug_p) |
c906108c SS |
531 | { |
532 | char *safe_string = (char *) alloca ((strlen (string) * 4) + 1); | |
2df3850c JM |
533 | monitor_printable_string (safe_string, string, 0); |
534 | fprintf_unfiltered (gdb_stdlog, "MON Expecting '%s'\n", safe_string); | |
c906108c SS |
535 | } |
536 | ||
537 | immediate_quit = 1; | |
538 | while (1) | |
539 | { | |
540 | if (buf) | |
541 | { | |
542 | if (buflen < 2) | |
543 | { | |
544 | *buf = '\000'; | |
545 | immediate_quit = 0; | |
546 | return -1; | |
547 | } | |
548 | ||
549 | c = readchar (timeout); | |
550 | if (c == '\000') | |
551 | continue; | |
552 | *buf++ = c; | |
553 | buflen--; | |
554 | } | |
555 | else | |
556 | c = readchar (timeout); | |
557 | ||
558 | /* Don't expect any ^C sent to be echoed */ | |
c5aa993b | 559 | |
c906108c SS |
560 | if (*p == '\003' || c == *p) |
561 | { | |
562 | p++; | |
563 | if (*p == '\0') | |
564 | { | |
565 | immediate_quit = 0; | |
566 | ||
567 | if (buf) | |
568 | { | |
569 | *buf++ = '\000'; | |
570 | return obuflen - buflen; | |
571 | } | |
572 | else | |
573 | return 0; | |
574 | } | |
575 | } | |
576 | else if ((c == '\021' || c == '\023') && | |
577 | (STREQ (targ_ops->to_shortname, "m32r") | |
578 | || STREQ (targ_ops->to_shortname, "mon2000"))) | |
c5aa993b | 579 | { /* m32r monitor emits random DC1/DC3 chars */ |
c906108c SS |
580 | continue; |
581 | } | |
582 | else | |
583 | { | |
a0b3c4fd JM |
584 | /* We got a character that doesn't match the string. We need to |
585 | back up p, but how far? If we're looking for "..howdy" and the | |
586 | monitor sends "...howdy"? There's certainly a match in there, | |
587 | but when we receive the third ".", we won't find it if we just | |
588 | restart the matching at the beginning of the string. | |
589 | ||
590 | This is a Boyer-Moore kind of situation. We want to reset P to | |
591 | the end of the longest prefix of STRING that is a suffix of | |
592 | what we've read so far. In the example above, that would be | |
593 | ".." --- the longest prefix of "..howdy" that is a suffix of | |
594 | "...". This longest prefix could be the empty string, if C | |
595 | is nowhere to be found in STRING. | |
596 | ||
597 | If this longest prefix is not the empty string, it must contain | |
598 | C, so let's search from the end of STRING for instances of C, | |
599 | and see if the portion of STRING before that is a suffix of | |
600 | what we read before C. Actually, we can search backwards from | |
601 | p, since we know no prefix can be longer than that. | |
602 | ||
603 | Note that we can use STRING itself, along with C, as a record | |
604 | of what we've received so far. :) */ | |
605 | int i; | |
606 | ||
607 | for (i = (p - string) - 1; i >= 0; i--) | |
608 | if (string[i] == c) | |
609 | { | |
610 | /* Is this prefix a suffix of what we've read so far? | |
611 | In other words, does | |
612 | string[0 .. i-1] == string[p - i, p - 1]? */ | |
613 | if (! memcmp (string, p - i, i)) | |
614 | { | |
615 | p = string + i + 1; | |
616 | break; | |
617 | } | |
618 | } | |
619 | if (i < 0) | |
620 | p = string; | |
c906108c SS |
621 | } |
622 | } | |
623 | } | |
624 | ||
625 | /* Search for a regexp. */ | |
626 | ||
627 | static int | |
628 | monitor_expect_regexp (pat, buf, buflen) | |
629 | struct re_pattern_buffer *pat; | |
630 | char *buf; | |
631 | int buflen; | |
632 | { | |
633 | char *mybuf; | |
634 | char *p; | |
2df3850c | 635 | monitor_debug ("MON Expecting regexp\n"); |
c906108c SS |
636 | if (buf) |
637 | mybuf = buf; | |
638 | else | |
639 | { | |
d4f3574e SS |
640 | mybuf = alloca (TARGET_BUF_SIZE); |
641 | buflen = TARGET_BUF_SIZE; | |
c906108c SS |
642 | } |
643 | ||
644 | p = mybuf; | |
645 | while (1) | |
646 | { | |
647 | int retval; | |
648 | ||
649 | if (p - mybuf >= buflen) | |
650 | { /* Buffer about to overflow */ | |
651 | ||
652 | /* On overflow, we copy the upper half of the buffer to the lower half. Not | |
653 | great, but it usually works... */ | |
654 | ||
655 | memcpy (mybuf, mybuf + buflen / 2, buflen / 2); | |
656 | p = mybuf + buflen / 2; | |
657 | } | |
658 | ||
659 | *p++ = readchar (timeout); | |
660 | ||
661 | retval = re_search (pat, mybuf, p - mybuf, 0, p - mybuf, NULL); | |
662 | if (retval >= 0) | |
663 | return 1; | |
664 | } | |
665 | } | |
666 | ||
667 | /* Keep discarding input until we see the MONITOR prompt. | |
668 | ||
669 | The convention for dealing with the prompt is that you | |
670 | o give your command | |
671 | o *then* wait for the prompt. | |
672 | ||
673 | Thus the last thing that a procedure does with the serial line will | |
674 | be an monitor_expect_prompt(). Exception: monitor_resume does not | |
675 | wait for the prompt, because the terminal is being handed over to | |
676 | the inferior. However, the next thing which happens after that is | |
677 | a monitor_wait which does wait for the prompt. Note that this | |
678 | includes abnormal exit, e.g. error(). This is necessary to prevent | |
679 | getting into states from which we can't recover. */ | |
680 | ||
681 | int | |
682 | monitor_expect_prompt (buf, buflen) | |
683 | char *buf; | |
684 | int buflen; | |
685 | { | |
2df3850c JM |
686 | monitor_debug ("MON Expecting prompt\n"); |
687 | return monitor_expect (current_monitor->prompt, buf, buflen); | |
c906108c SS |
688 | } |
689 | ||
690 | /* Get N 32-bit words from remote, each preceded by a space, and put | |
691 | them in registers starting at REGNO. */ | |
692 | ||
693 | #if 0 | |
694 | static unsigned long | |
695 | get_hex_word () | |
696 | { | |
697 | unsigned long val; | |
698 | int i; | |
699 | int ch; | |
700 | ||
701 | do | |
702 | ch = readchar (timeout); | |
c5aa993b | 703 | while (isspace (ch)); |
c906108c SS |
704 | |
705 | val = from_hex (ch); | |
706 | ||
707 | for (i = 7; i >= 1; i--) | |
708 | { | |
709 | ch = readchar (timeout); | |
710 | if (!isxdigit (ch)) | |
711 | break; | |
712 | val = (val << 4) | from_hex (ch); | |
713 | } | |
714 | ||
715 | return val; | |
716 | } | |
717 | #endif | |
718 | ||
719 | static void | |
720 | compile_pattern (pattern, compiled_pattern, fastmap) | |
721 | char *pattern; | |
722 | struct re_pattern_buffer *compiled_pattern; | |
723 | char *fastmap; | |
724 | { | |
725 | int tmp; | |
726 | const char *val; | |
727 | ||
728 | compiled_pattern->fastmap = fastmap; | |
729 | ||
730 | tmp = re_set_syntax (RE_SYNTAX_EMACS); | |
731 | val = re_compile_pattern (pattern, | |
732 | strlen (pattern), | |
733 | compiled_pattern); | |
734 | re_set_syntax (tmp); | |
735 | ||
736 | if (val) | |
737 | error ("compile_pattern: Can't compile pattern string `%s': %s!", pattern, val); | |
738 | ||
739 | if (fastmap) | |
740 | re_compile_fastmap (compiled_pattern); | |
741 | } | |
742 | ||
743 | /* Open a connection to a remote debugger. NAME is the filename used | |
744 | for communication. */ | |
745 | ||
746 | void | |
747 | monitor_open (args, mon_ops, from_tty) | |
748 | char *args; | |
749 | struct monitor_ops *mon_ops; | |
750 | int from_tty; | |
751 | { | |
752 | char *name; | |
753 | char **p; | |
754 | ||
755 | if (mon_ops->magic != MONITOR_OPS_MAGIC) | |
756 | error ("Magic number of monitor_ops struct wrong."); | |
757 | ||
758 | targ_ops = mon_ops->target; | |
759 | name = targ_ops->to_shortname; | |
760 | ||
761 | if (!args) | |
762 | error ("Use `target %s DEVICE-NAME' to use a serial port, or \n\ | |
763 | `target %s HOST-NAME:PORT-NUMBER' to use a network connection.", name, name); | |
764 | ||
765 | target_preopen (from_tty); | |
766 | ||
767 | /* Setup pattern for register dump */ | |
768 | ||
769 | if (mon_ops->register_pattern) | |
770 | compile_pattern (mon_ops->register_pattern, ®ister_pattern, | |
771 | register_fastmap); | |
772 | ||
773 | if (mon_ops->getmem.resp_delim) | |
774 | compile_pattern (mon_ops->getmem.resp_delim, &getmem_resp_delim_pattern, | |
775 | getmem_resp_delim_fastmap); | |
776 | ||
777 | unpush_target (targ_ops); | |
778 | ||
779 | if (dev_name) | |
780 | free (dev_name); | |
781 | dev_name = strsave (args); | |
782 | ||
783 | monitor_desc = SERIAL_OPEN (dev_name); | |
784 | ||
785 | if (!monitor_desc) | |
786 | perror_with_name (dev_name); | |
787 | ||
788 | if (baud_rate != -1) | |
789 | { | |
790 | if (SERIAL_SETBAUDRATE (monitor_desc, baud_rate)) | |
791 | { | |
792 | SERIAL_CLOSE (monitor_desc); | |
793 | perror_with_name (dev_name); | |
794 | } | |
795 | } | |
c5aa993b | 796 | |
c906108c SS |
797 | SERIAL_RAW (monitor_desc); |
798 | ||
799 | SERIAL_FLUSH_INPUT (monitor_desc); | |
800 | ||
801 | /* some systems only work with 2 stop bits */ | |
802 | ||
803 | SERIAL_SETSTOPBITS (monitor_desc, mon_ops->stopbits); | |
804 | ||
805 | current_monitor = mon_ops; | |
806 | ||
807 | /* See if we can wake up the monitor. First, try sending a stop sequence, | |
808 | then send the init strings. Last, remove all breakpoints. */ | |
809 | ||
810 | if (current_monitor->stop) | |
811 | { | |
812 | monitor_stop (); | |
813 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) | |
c5aa993b | 814 | { |
2df3850c | 815 | monitor_debug ("EXP Open echo\n"); |
c5aa993b JM |
816 | monitor_expect_prompt (NULL, 0); |
817 | } | |
c906108c SS |
818 | } |
819 | ||
820 | /* wake up the monitor and see if it's alive */ | |
821 | for (p = mon_ops->init; *p != NULL; p++) | |
822 | { | |
823 | /* Some of the characters we send may not be echoed, | |
c5aa993b JM |
824 | but we hope to get a prompt at the end of it all. */ |
825 | ||
c906108c | 826 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) |
c5aa993b | 827 | monitor_printf (*p); |
c906108c | 828 | else |
c5aa993b | 829 | monitor_printf_noecho (*p); |
c906108c SS |
830 | monitor_expect_prompt (NULL, 0); |
831 | } | |
832 | ||
833 | SERIAL_FLUSH_INPUT (monitor_desc); | |
834 | ||
9e086581 JM |
835 | /* Alloc breakpoints */ |
836 | if (mon_ops->set_break != NULL) | |
837 | { | |
838 | if (mon_ops->num_breakpoints == 0) | |
839 | mon_ops->num_breakpoints = 8; | |
840 | ||
841 | breakaddr = (CORE_ADDR *) xmalloc (mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
842 | memset (breakaddr, 0, mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
843 | } | |
844 | ||
c906108c SS |
845 | /* Remove all breakpoints */ |
846 | ||
847 | if (mon_ops->clr_all_break) | |
848 | { | |
849 | monitor_printf (mon_ops->clr_all_break); | |
850 | monitor_expect_prompt (NULL, 0); | |
851 | } | |
852 | ||
853 | if (from_tty) | |
854 | printf_unfiltered ("Remote target %s connected to %s\n", name, dev_name); | |
855 | ||
856 | push_target (targ_ops); | |
857 | ||
858 | inferior_pid = 42000; /* Make run command think we are busy... */ | |
859 | ||
860 | /* Give monitor_wait something to read */ | |
861 | ||
862 | monitor_printf (current_monitor->line_term); | |
863 | ||
864 | if (current_monitor->flags & MO_HAS_BLOCKWRITES) | |
865 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory_block); | |
866 | else | |
867 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory); | |
868 | start_remote (); | |
869 | } | |
870 | ||
871 | /* Close out all files and local state before this target loses | |
872 | control. */ | |
873 | ||
874 | void | |
875 | monitor_close (quitting) | |
876 | int quitting; | |
877 | { | |
878 | if (monitor_desc) | |
879 | SERIAL_CLOSE (monitor_desc); | |
9e086581 JM |
880 | |
881 | /* Free breakpoint memory */ | |
882 | if (breakaddr != NULL) | |
883 | { | |
884 | free (breakaddr); | |
885 | breakaddr = NULL; | |
886 | } | |
887 | ||
c906108c SS |
888 | monitor_desc = NULL; |
889 | } | |
890 | ||
891 | /* Terminate the open connection to the remote debugger. Use this | |
892 | when you want to detach and do something else with your gdb. */ | |
893 | ||
894 | static void | |
895 | monitor_detach (args, from_tty) | |
896 | char *args; | |
897 | int from_tty; | |
898 | { | |
899 | pop_target (); /* calls monitor_close to do the real work */ | |
900 | if (from_tty) | |
901 | printf_unfiltered ("Ending remote %s debugging\n", target_shortname); | |
902 | } | |
903 | ||
904 | /* Convert VALSTR into the target byte-ordered value of REGNO and store it. */ | |
905 | ||
906 | char * | |
907 | monitor_supply_register (regno, valstr) | |
908 | int regno; | |
909 | char *valstr; | |
910 | { | |
d4f3574e | 911 | ULONGEST val; |
c906108c SS |
912 | unsigned char regbuf[MAX_REGISTER_RAW_SIZE]; |
913 | char *p; | |
914 | ||
4ce44c66 | 915 | val = 0; |
d4f3574e SS |
916 | p = valstr; |
917 | while (p && *p != '\0') | |
918 | { | |
919 | if (*p == '\r' || *p == '\n') | |
920 | { | |
921 | while (*p != '\0') | |
922 | p++; | |
923 | break; | |
924 | } | |
925 | if (isspace (*p)) | |
926 | { | |
927 | p++; | |
928 | continue; | |
929 | } | |
930 | if (!isxdigit (*p) && *p != 'x') | |
931 | { | |
932 | break; | |
933 | } | |
934 | ||
935 | val <<= 4; | |
936 | val += fromhex (*p++); | |
937 | } | |
2df3850c | 938 | monitor_debug ("Supplying Register %d %s\n", regno, valstr); |
c906108c | 939 | |
d4f3574e | 940 | if (*p != '\0') |
c906108c SS |
941 | error ("monitor_supply_register (%d): bad value from monitor: %s.", |
942 | regno, valstr); | |
943 | ||
944 | /* supply register stores in target byte order, so swap here */ | |
945 | ||
946 | store_unsigned_integer (regbuf, REGISTER_RAW_SIZE (regno), val); | |
947 | ||
948 | supply_register (regno, regbuf); | |
949 | ||
950 | return p; | |
951 | } | |
952 | ||
953 | /* Tell the remote machine to resume. */ | |
954 | ||
955 | void | |
956 | flush_monitor_dcache () | |
957 | { | |
958 | dcache_flush (remote_dcache); | |
959 | } | |
960 | ||
961 | static void | |
962 | monitor_resume (pid, step, sig) | |
963 | int pid, step; | |
964 | enum target_signal sig; | |
965 | { | |
966 | /* Some monitors require a different command when starting a program */ | |
2df3850c | 967 | monitor_debug ("MON resume\n"); |
c906108c SS |
968 | if (current_monitor->flags & MO_RUN_FIRST_TIME && first_time == 1) |
969 | { | |
970 | first_time = 0; | |
971 | monitor_printf ("run\r"); | |
972 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) | |
c5aa993b | 973 | dump_reg_flag = 1; |
c906108c SS |
974 | return; |
975 | } | |
976 | dcache_flush (remote_dcache); | |
977 | if (step) | |
978 | monitor_printf (current_monitor->step); | |
979 | else | |
980 | { | |
981 | if (current_monitor->continue_hook) | |
c5aa993b JM |
982 | (*current_monitor->continue_hook) (); |
983 | else | |
984 | monitor_printf (current_monitor->cont); | |
c906108c SS |
985 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) |
986 | dump_reg_flag = 1; | |
987 | } | |
988 | } | |
989 | ||
990 | /* Parse the output of a register dump command. A monitor specific | |
991 | regexp is used to extract individual register descriptions of the | |
992 | form REG=VAL. Each description is split up into a name and a value | |
993 | string which are passed down to monitor specific code. */ | |
994 | ||
995 | static void | |
996 | parse_register_dump (buf, len) | |
997 | char *buf; | |
998 | int len; | |
999 | { | |
2df3850c JM |
1000 | monitor_debug ("MON Parsing register dump\n"); |
1001 | while (1) | |
c906108c SS |
1002 | { |
1003 | int regnamelen, vallen; | |
1004 | char *regname, *val; | |
1005 | /* Element 0 points to start of register name, and element 1 | |
c5aa993b | 1006 | points to the start of the register value. */ |
c906108c SS |
1007 | struct re_registers register_strings; |
1008 | ||
1009 | memset (®ister_strings, 0, sizeof (struct re_registers)); | |
1010 | ||
1011 | if (re_search (®ister_pattern, buf, len, 0, len, | |
1012 | ®ister_strings) == -1) | |
1013 | break; | |
1014 | ||
1015 | regnamelen = register_strings.end[1] - register_strings.start[1]; | |
1016 | regname = buf + register_strings.start[1]; | |
1017 | vallen = register_strings.end[2] - register_strings.start[2]; | |
1018 | val = buf + register_strings.start[2]; | |
1019 | ||
1020 | current_monitor->supply_register (regname, regnamelen, val, vallen); | |
1021 | ||
1022 | buf += register_strings.end[0]; | |
1023 | len -= register_strings.end[0]; | |
1024 | } | |
1025 | } | |
1026 | ||
1027 | /* Send ^C to target to halt it. Target will respond, and send us a | |
1028 | packet. */ | |
1029 | ||
1030 | static void | |
1031 | monitor_interrupt (signo) | |
1032 | int signo; | |
1033 | { | |
1034 | /* If this doesn't work, try more severe steps. */ | |
1035 | signal (signo, monitor_interrupt_twice); | |
c5aa993b | 1036 | |
2df3850c JM |
1037 | if (monitor_debug_p || remote_debug) |
1038 | fprintf_unfiltered (gdb_stdlog, "monitor_interrupt called\n"); | |
c906108c SS |
1039 | |
1040 | target_stop (); | |
1041 | } | |
1042 | ||
1043 | /* The user typed ^C twice. */ | |
1044 | ||
1045 | static void | |
1046 | monitor_interrupt_twice (signo) | |
1047 | int signo; | |
1048 | { | |
1049 | signal (signo, ofunc); | |
c5aa993b | 1050 | |
c906108c SS |
1051 | monitor_interrupt_query (); |
1052 | ||
1053 | signal (signo, monitor_interrupt); | |
1054 | } | |
1055 | ||
1056 | /* Ask the user what to do when an interrupt is received. */ | |
1057 | ||
1058 | static void | |
1059 | monitor_interrupt_query () | |
1060 | { | |
1061 | target_terminal_ours (); | |
1062 | ||
1063 | if (query ("Interrupted while waiting for the program.\n\ | |
1064 | Give up (and stop debugging it)? ")) | |
1065 | { | |
1066 | target_mourn_inferior (); | |
1067 | return_to_top_level (RETURN_QUIT); | |
1068 | } | |
1069 | ||
1070 | target_terminal_inferior (); | |
1071 | } | |
1072 | ||
1073 | static void | |
1074 | monitor_wait_cleanup (old_timeout) | |
1075 | void *old_timeout; | |
1076 | { | |
c5aa993b | 1077 | timeout = *(int *) old_timeout; |
c906108c SS |
1078 | signal (SIGINT, ofunc); |
1079 | in_monitor_wait = 0; | |
1080 | } | |
1081 | ||
1082 | ||
1083 | ||
c5aa993b JM |
1084 | void |
1085 | monitor_wait_filter (char *buf, | |
1086 | int bufmax, | |
1087 | int *ext_resp_len, | |
1088 | struct target_waitstatus *status | |
1089 | ) | |
c906108c | 1090 | { |
c5aa993b | 1091 | int resp_len; |
c906108c SS |
1092 | do |
1093 | { | |
1094 | resp_len = monitor_expect_prompt (buf, bufmax); | |
c5aa993b | 1095 | *ext_resp_len = resp_len; |
c906108c SS |
1096 | |
1097 | if (resp_len <= 0) | |
1098 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1099 | } | |
1100 | while (resp_len < 0); | |
1101 | ||
1102 | /* Print any output characters that were preceded by ^O. */ | |
1103 | /* FIXME - This would be great as a user settabgle flag */ | |
2df3850c JM |
1104 | if (monitor_debug_p || remote_debug |
1105 | || current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
c906108c SS |
1106 | { |
1107 | int i; | |
1108 | ||
1109 | for (i = 0; i < resp_len - 1; i++) | |
1110 | if (buf[i] == 0x0f) | |
1111 | putchar_unfiltered (buf[++i]); | |
1112 | } | |
1113 | } | |
1114 | ||
1115 | ||
1116 | ||
1117 | /* Wait until the remote machine stops, then return, storing status in | |
1118 | status just as `wait' would. */ | |
1119 | ||
1120 | static int | |
1121 | monitor_wait (pid, status) | |
1122 | int pid; | |
1123 | struct target_waitstatus *status; | |
1124 | { | |
1125 | int old_timeout = timeout; | |
d4f3574e | 1126 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1127 | int resp_len; |
1128 | struct cleanup *old_chain; | |
1129 | ||
1130 | status->kind = TARGET_WAITKIND_EXITED; | |
1131 | status->value.integer = 0; | |
1132 | ||
1133 | old_chain = make_cleanup (monitor_wait_cleanup, &old_timeout); | |
2df3850c | 1134 | monitor_debug ("MON wait\n"); |
c906108c | 1135 | |
7a292a7a | 1136 | #if 0 |
c5aa993b JM |
1137 | /* This is somthing other than a maintenance command */ |
1138 | in_monitor_wait = 1; | |
c906108c SS |
1139 | timeout = watchdog > 0 ? watchdog : -1; |
1140 | #else | |
2df3850c | 1141 | timeout = -1; /* Don't time out -- user program is running. */ |
c906108c SS |
1142 | #endif |
1143 | ||
1144 | ofunc = (void (*)()) signal (SIGINT, monitor_interrupt); | |
1145 | ||
1146 | if (current_monitor->wait_filter) | |
c5aa993b JM |
1147 | (*current_monitor->wait_filter) (buf, sizeof (buf), &resp_len, status); |
1148 | else | |
1149 | monitor_wait_filter (buf, sizeof (buf), &resp_len, status); | |
1150 | ||
1151 | #if 0 /* Transferred to monitor wait filter */ | |
c906108c SS |
1152 | do |
1153 | { | |
1154 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1155 | ||
1156 | if (resp_len <= 0) | |
1157 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1158 | } | |
1159 | while (resp_len < 0); | |
1160 | ||
1161 | /* Print any output characters that were preceded by ^O. */ | |
1162 | /* FIXME - This would be great as a user settabgle flag */ | |
2df3850c JM |
1163 | if (monitor_debug_p || remote_debug |
1164 | || current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
c906108c SS |
1165 | { |
1166 | int i; | |
1167 | ||
1168 | for (i = 0; i < resp_len - 1; i++) | |
1169 | if (buf[i] == 0x0f) | |
1170 | putchar_unfiltered (buf[++i]); | |
1171 | } | |
c5aa993b | 1172 | #endif |
c906108c SS |
1173 | |
1174 | signal (SIGINT, ofunc); | |
1175 | ||
1176 | timeout = old_timeout; | |
1177 | #if 0 | |
1178 | if (dump_reg_flag && current_monitor->dump_registers) | |
1179 | { | |
1180 | dump_reg_flag = 0; | |
1181 | monitor_printf (current_monitor->dump_registers); | |
1182 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1183 | } | |
1184 | ||
1185 | if (current_monitor->register_pattern) | |
1186 | parse_register_dump (buf, resp_len); | |
1187 | #else | |
2df3850c | 1188 | monitor_debug ("Wait fetching registers after stop\n"); |
c5aa993b JM |
1189 | monitor_dump_regs (); |
1190 | #endif | |
c906108c SS |
1191 | |
1192 | status->kind = TARGET_WAITKIND_STOPPED; | |
1193 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1194 | ||
1195 | discard_cleanups (old_chain); | |
1196 | ||
1197 | in_monitor_wait = 0; | |
1198 | ||
1199 | return inferior_pid; | |
1200 | } | |
1201 | ||
1202 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns | |
1203 | errno value. */ | |
1204 | ||
1205 | static void | |
1206 | monitor_fetch_register (regno) | |
1207 | int regno; | |
1208 | { | |
1209 | char *name; | |
c5aa993b JM |
1210 | static char zerobuf[MAX_REGISTER_RAW_SIZE] = |
1211 | {0}; | |
c906108c SS |
1212 | char regbuf[MAX_REGISTER_RAW_SIZE * 2 + 1]; |
1213 | int i; | |
1214 | ||
1215 | name = current_monitor->regnames[regno]; | |
2df3850c | 1216 | monitor_debug ("MON fetchreg %d '%s'\n", regno, name ? name : "(null name)"); |
c906108c | 1217 | |
2df3850c | 1218 | if (!name || (*name == '\0')) |
7a292a7a | 1219 | { |
2df3850c JM |
1220 | monitor_debug ("No register known for %d\n", regno); |
1221 | supply_register (regno, zerobuf); | |
c906108c SS |
1222 | return; |
1223 | } | |
1224 | ||
1225 | /* send the register examine command */ | |
1226 | ||
1227 | monitor_printf (current_monitor->getreg.cmd, name); | |
1228 | ||
1229 | /* If RESP_DELIM is specified, we search for that as a leading | |
1230 | delimiter for the register value. Otherwise, we just start | |
1231 | searching from the start of the buf. */ | |
1232 | ||
1233 | if (current_monitor->getreg.resp_delim) | |
1234 | { | |
2df3850c JM |
1235 | monitor_debug ("EXP getreg.resp_delim\n"); |
1236 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); | |
c906108c SS |
1237 | /* Handle case of first 32 registers listed in pairs. */ |
1238 | if (current_monitor->flags & MO_32_REGS_PAIRED | |
7a292a7a | 1239 | && (regno & 1) != 0 && regno < 32) |
c5aa993b | 1240 | { |
2df3850c | 1241 | monitor_debug ("EXP getreg.resp_delim\n"); |
c906108c SS |
1242 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); |
1243 | } | |
1244 | } | |
1245 | ||
1246 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set */ | |
c5aa993b | 1247 | if (current_monitor->flags & MO_HEX_PREFIX) |
c906108c SS |
1248 | { |
1249 | int c; | |
1250 | c = readchar (timeout); | |
1251 | while (c == ' ') | |
1252 | c = readchar (timeout); | |
1253 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1254 | ; | |
1255 | else | |
c5aa993b JM |
1256 | error ("Bad value returned from monitor while fetching register %x.", |
1257 | regno); | |
c906108c SS |
1258 | } |
1259 | ||
1260 | /* Read upto the maximum number of hex digits for this register, skipping | |
1261 | spaces, but stop reading if something else is seen. Some monitors | |
1262 | like to drop leading zeros. */ | |
1263 | ||
1264 | for (i = 0; i < REGISTER_RAW_SIZE (regno) * 2; i++) | |
1265 | { | |
1266 | int c; | |
1267 | c = readchar (timeout); | |
1268 | while (c == ' ') | |
1269 | c = readchar (timeout); | |
1270 | ||
1271 | if (!isxdigit (c)) | |
1272 | break; | |
1273 | ||
1274 | regbuf[i] = c; | |
1275 | } | |
1276 | ||
1277 | regbuf[i] = '\000'; /* terminate the number */ | |
2df3850c | 1278 | monitor_debug ("REGVAL '%s'\n", regbuf); |
c906108c SS |
1279 | |
1280 | /* If TERM is present, we wait for that to show up. Also, (if TERM | |
1281 | is present), we will send TERM_CMD if that is present. In any | |
1282 | case, we collect all of the output into buf, and then wait for | |
1283 | the normal prompt. */ | |
1284 | ||
1285 | if (current_monitor->getreg.term) | |
1286 | { | |
2df3850c JM |
1287 | monitor_debug ("EXP getreg.term\n"); |
1288 | monitor_expect (current_monitor->getreg.term, NULL, 0); /* get response */ | |
c906108c SS |
1289 | } |
1290 | ||
1291 | if (current_monitor->getreg.term_cmd) | |
c5aa993b | 1292 | { |
2df3850c JM |
1293 | monitor_debug ("EMIT getreg.term.cmd\n"); |
1294 | monitor_printf (current_monitor->getreg.term_cmd); | |
c906108c | 1295 | } |
c5aa993b JM |
1296 | if (!current_monitor->getreg.term || /* Already expected or */ |
1297 | current_monitor->getreg.term_cmd) /* ack expected */ | |
1298 | monitor_expect_prompt (NULL, 0); /* get response */ | |
c906108c SS |
1299 | |
1300 | monitor_supply_register (regno, regbuf); | |
1301 | } | |
1302 | ||
1303 | /* Sometimes, it takes several commands to dump the registers */ | |
1304 | /* This is a primitive for use by variations of monitor interfaces in | |
1305 | case they need to compose the operation. | |
c5aa993b JM |
1306 | */ |
1307 | int | |
1308 | monitor_dump_reg_block (char *block_cmd) | |
c906108c | 1309 | { |
d4f3574e | 1310 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1311 | int resp_len; |
1312 | monitor_printf (block_cmd); | |
1313 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1314 | parse_register_dump (buf, resp_len); | |
c5aa993b | 1315 | return 1; |
c906108c SS |
1316 | } |
1317 | ||
1318 | ||
1319 | /* Read the remote registers into the block regs. */ | |
1320 | /* Call the specific function if it has been provided */ | |
1321 | ||
1322 | static void | |
1323 | monitor_dump_regs () | |
1324 | { | |
d4f3574e | 1325 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1326 | int resp_len; |
1327 | if (current_monitor->dumpregs) | |
c5aa993b JM |
1328 | (*(current_monitor->dumpregs)) (); /* call supplied function */ |
1329 | else if (current_monitor->dump_registers) /* default version */ | |
1330 | { | |
1331 | monitor_printf (current_monitor->dump_registers); | |
c906108c SS |
1332 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
1333 | parse_register_dump (buf, resp_len); | |
1334 | } | |
1335 | else | |
c5aa993b | 1336 | abort (); /* Need some way to read registers */ |
c906108c SS |
1337 | } |
1338 | ||
1339 | static void | |
1340 | monitor_fetch_registers (regno) | |
1341 | int regno; | |
1342 | { | |
2df3850c | 1343 | monitor_debug ("MON fetchregs\n"); |
c5aa993b | 1344 | if (current_monitor->getreg.cmd) |
c906108c SS |
1345 | { |
1346 | if (regno >= 0) | |
1347 | { | |
1348 | monitor_fetch_register (regno); | |
1349 | return; | |
1350 | } | |
1351 | ||
1352 | for (regno = 0; regno < NUM_REGS; regno++) | |
1353 | monitor_fetch_register (regno); | |
1354 | } | |
c5aa993b JM |
1355 | else |
1356 | { | |
1357 | monitor_dump_regs (); | |
1358 | } | |
c906108c SS |
1359 | } |
1360 | ||
1361 | /* Store register REGNO, or all if REGNO == 0. Return errno value. */ | |
1362 | ||
1363 | static void | |
1364 | monitor_store_register (regno) | |
1365 | int regno; | |
1366 | { | |
1367 | char *name; | |
d4f3574e | 1368 | ULONGEST val; |
c906108c SS |
1369 | |
1370 | name = current_monitor->regnames[regno]; | |
1371 | if (!name || (*name == '\0')) | |
c5aa993b | 1372 | { |
2df3850c JM |
1373 | monitor_debug ("MON Cannot store unknown register\n"); |
1374 | return; | |
c906108c SS |
1375 | } |
1376 | ||
1377 | val = read_register (regno); | |
2df3850c | 1378 | monitor_debug ("MON storeg %d %s\n", regno, preg (val)); |
c906108c SS |
1379 | |
1380 | /* send the register deposit command */ | |
1381 | ||
2df3850c | 1382 | if (current_monitor->flags & MO_REGISTER_VALUE_FIRST) |
c906108c SS |
1383 | monitor_printf (current_monitor->setreg.cmd, val, name); |
1384 | else if (current_monitor->flags & MO_SETREG_INTERACTIVE) | |
1385 | monitor_printf (current_monitor->setreg.cmd, name); | |
1386 | else | |
1387 | monitor_printf (current_monitor->setreg.cmd, name, val); | |
1388 | ||
1389 | if (current_monitor->setreg.term) | |
c5aa993b | 1390 | { |
2df3850c JM |
1391 | monitor_debug ("EXP setreg.term\n"); |
1392 | monitor_expect (current_monitor->setreg.term, NULL, 0); | |
c906108c | 1393 | if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
2df3850c | 1394 | monitor_printf ("%s\r", paddr_nz (val)); |
c906108c SS |
1395 | monitor_expect_prompt (NULL, 0); |
1396 | } | |
1397 | else | |
1398 | monitor_expect_prompt (NULL, 0); | |
c5aa993b JM |
1399 | if (current_monitor->setreg.term_cmd) /* Mode exit required */ |
1400 | { | |
2df3850c | 1401 | monitor_debug ("EXP setreg_termcmd\n"); |
c5aa993b JM |
1402 | monitor_printf ("%s", current_monitor->setreg.term_cmd); |
1403 | monitor_expect_prompt (NULL, 0); | |
c906108c | 1404 | } |
c5aa993b | 1405 | } /* monitor_store_register */ |
c906108c SS |
1406 | |
1407 | /* Store the remote registers. */ | |
1408 | ||
1409 | static void | |
1410 | monitor_store_registers (regno) | |
1411 | int regno; | |
1412 | { | |
1413 | if (regno >= 0) | |
1414 | { | |
1415 | monitor_store_register (regno); | |
1416 | return; | |
1417 | } | |
1418 | ||
1419 | for (regno = 0; regno < NUM_REGS; regno++) | |
1420 | monitor_store_register (regno); | |
1421 | } | |
1422 | ||
1423 | /* Get ready to modify the registers array. On machines which store | |
1424 | individual registers, this doesn't need to do anything. On machines | |
1425 | which store all the registers in one fell swoop, this makes sure | |
1426 | that registers contains all the registers from the program being | |
1427 | debugged. */ | |
1428 | ||
1429 | static void | |
1430 | monitor_prepare_to_store () | |
1431 | { | |
1432 | /* Do nothing, since we can store individual regs */ | |
1433 | } | |
1434 | ||
1435 | static void | |
1436 | monitor_files_info (ops) | |
1437 | struct target_ops *ops; | |
1438 | { | |
1439 | printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baud_rate); | |
1440 | } | |
1441 | ||
1442 | static int | |
1443 | monitor_write_memory (memaddr, myaddr, len) | |
1444 | CORE_ADDR memaddr; | |
1445 | char *myaddr; | |
1446 | int len; | |
1447 | { | |
c5aa993b | 1448 | unsigned int val, hostval; |
c906108c SS |
1449 | char *cmd; |
1450 | int i; | |
1451 | ||
2df3850c | 1452 | monitor_debug ("MON write %d %s\n", len, paddr (memaddr)); |
c906108c | 1453 | |
2df3850c | 1454 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
c906108c SS |
1455 | memaddr = ADDR_BITS_REMOVE (memaddr); |
1456 | ||
1457 | /* Use memory fill command for leading 0 bytes. */ | |
1458 | ||
1459 | if (current_monitor->fill) | |
1460 | { | |
1461 | for (i = 0; i < len; i++) | |
1462 | if (myaddr[i] != 0) | |
1463 | break; | |
1464 | ||
1465 | if (i > 4) /* More than 4 zeros is worth doing */ | |
1466 | { | |
2df3850c JM |
1467 | monitor_debug ("MON FILL %d\n", i); |
1468 | if (current_monitor->flags & MO_FILL_USES_ADDR) | |
c5aa993b JM |
1469 | monitor_printf (current_monitor->fill, memaddr, (memaddr + i) - 1, 0); |
1470 | else | |
1471 | monitor_printf (current_monitor->fill, memaddr, i, 0); | |
c906108c SS |
1472 | |
1473 | monitor_expect_prompt (NULL, 0); | |
1474 | ||
1475 | return i; | |
1476 | } | |
1477 | } | |
1478 | ||
1479 | #if 0 | |
1480 | /* Can't actually use long longs if VAL is an int (nice idea, though). */ | |
1481 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->setmem.cmdll) | |
1482 | { | |
1483 | len = 8; | |
1484 | cmd = current_monitor->setmem.cmdll; | |
1485 | } | |
1486 | else | |
1487 | #endif | |
1488 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->setmem.cmdl) | |
1489 | { | |
1490 | len = 4; | |
1491 | cmd = current_monitor->setmem.cmdl; | |
1492 | } | |
1493 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->setmem.cmdw) | |
1494 | { | |
1495 | len = 2; | |
1496 | cmd = current_monitor->setmem.cmdw; | |
1497 | } | |
1498 | else | |
1499 | { | |
1500 | len = 1; | |
1501 | cmd = current_monitor->setmem.cmdb; | |
1502 | } | |
1503 | ||
1504 | val = extract_unsigned_integer (myaddr, len); | |
c5aa993b | 1505 | |
c906108c | 1506 | if (len == 4) |
c5aa993b JM |
1507 | { |
1508 | hostval = *(unsigned int *) myaddr; | |
2df3850c | 1509 | monitor_debug ("Hostval(%08x) val(%08x)\n", hostval, val); |
c906108c SS |
1510 | } |
1511 | ||
1512 | ||
1513 | if (current_monitor->flags & MO_NO_ECHO_ON_SETMEM) | |
1514 | monitor_printf_noecho (cmd, memaddr, val); | |
1515 | else if (current_monitor->flags & MO_SETMEM_INTERACTIVE) | |
1516 | { | |
1517 | ||
1518 | monitor_printf_noecho (cmd, memaddr); | |
1519 | ||
1520 | if (current_monitor->setmem.term) | |
c5aa993b | 1521 | { |
2df3850c | 1522 | monitor_debug ("EXP setmem.term"); |
c906108c SS |
1523 | monitor_expect (current_monitor->setmem.term, NULL, 0); |
1524 | monitor_printf ("%x\r", val); | |
1525 | } | |
1526 | if (current_monitor->setmem.term_cmd) | |
c5aa993b JM |
1527 | { /* Emit this to get out of the memory editing state */ |
1528 | monitor_printf ("%s", current_monitor->setmem.term_cmd); | |
c906108c SS |
1529 | /* Drop through to expecting a prompt */ |
1530 | } | |
1531 | } | |
1532 | else | |
1533 | monitor_printf (cmd, memaddr, val); | |
1534 | ||
1535 | monitor_expect_prompt (NULL, 0); | |
1536 | ||
1537 | return len; | |
1538 | } | |
1539 | ||
1540 | ||
1541 | static int | |
c5aa993b JM |
1542 | monitor_write_even_block (memaddr, myaddr, len) |
1543 | CORE_ADDR memaddr; | |
1544 | char *myaddr; | |
1545 | int len; | |
c906108c | 1546 | { |
c5aa993b JM |
1547 | unsigned int val; |
1548 | int written = 0;; | |
c906108c | 1549 | /* Enter the sub mode */ |
c5aa993b JM |
1550 | monitor_printf (current_monitor->setmem.cmdl, memaddr); |
1551 | monitor_expect_prompt (NULL, 0); | |
1552 | ||
c906108c SS |
1553 | while (len) |
1554 | { | |
c5aa993b JM |
1555 | val = extract_unsigned_integer (myaddr, 4); /* REALLY */ |
1556 | monitor_printf ("%x\r", val); | |
1557 | myaddr += 4; | |
1558 | memaddr += 4; | |
1559 | written += 4; | |
2df3850c | 1560 | monitor_debug (" @ %s\n", paddr (memaddr)); |
c906108c | 1561 | /* If we wanted to, here we could validate the address */ |
2df3850c | 1562 | monitor_expect_prompt (NULL, 0); |
c906108c SS |
1563 | } |
1564 | /* Now exit the sub mode */ | |
1565 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1566 | monitor_expect_prompt (NULL, 0); |
1567 | return written; | |
c906108c SS |
1568 | } |
1569 | ||
1570 | ||
c5aa993b JM |
1571 | static int |
1572 | monitor_write_memory_bytes (memaddr, myaddr, len) | |
1573 | CORE_ADDR memaddr; | |
1574 | char *myaddr; | |
1575 | int len; | |
c906108c | 1576 | { |
c5aa993b JM |
1577 | unsigned char val; |
1578 | int written = 0; | |
1579 | if (len == 0) | |
1580 | return 0; | |
c906108c | 1581 | /* Enter the sub mode */ |
c5aa993b JM |
1582 | monitor_printf (current_monitor->setmem.cmdb, memaddr); |
1583 | monitor_expect_prompt (NULL, 0); | |
c906108c SS |
1584 | while (len) |
1585 | { | |
c5aa993b JM |
1586 | val = *myaddr; |
1587 | monitor_printf ("%x\r", val); | |
1588 | myaddr++; | |
1589 | memaddr++; | |
1590 | written++; | |
c906108c | 1591 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1592 | monitor_expect_prompt (NULL, 0); |
1593 | len--; | |
c906108c SS |
1594 | } |
1595 | /* Now exit the sub mode */ | |
1596 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1597 | monitor_expect_prompt (NULL, 0); |
1598 | return written; | |
c906108c SS |
1599 | } |
1600 | ||
1601 | ||
1602 | static void | |
c5aa993b | 1603 | longlongendswap (unsigned char *a) |
c906108c | 1604 | { |
c5aa993b JM |
1605 | int i, j; |
1606 | unsigned char x; | |
1607 | i = 0; | |
1608 | j = 7; | |
c906108c | 1609 | while (i < 4) |
c5aa993b JM |
1610 | { |
1611 | x = *(a + i); | |
1612 | *(a + i) = *(a + j); | |
1613 | *(a + j) = x; | |
1614 | i++, j--; | |
c906108c SS |
1615 | } |
1616 | } | |
1617 | /* Format 32 chars of long long value, advance the pointer */ | |
c5aa993b JM |
1618 | static char *hexlate = "0123456789abcdef"; |
1619 | static char * | |
1620 | longlong_hexchars (unsigned long long value, | |
1621 | char *outbuff) | |
c906108c | 1622 | { |
c5aa993b JM |
1623 | if (value == 0) |
1624 | { | |
1625 | *outbuff++ = '0'; | |
1626 | return outbuff; | |
1627 | } | |
c906108c | 1628 | else |
c5aa993b JM |
1629 | { |
1630 | static unsigned char disbuf[8]; /* disassembly buffer */ | |
1631 | unsigned char *scan, *limit; /* loop controls */ | |
1632 | unsigned char c, nib; | |
1633 | int leadzero = 1; | |
1634 | scan = disbuf; | |
1635 | limit = scan + 8; | |
1636 | { | |
1637 | unsigned long long *dp; | |
1638 | dp = (unsigned long long *) scan; | |
1639 | *dp = value; | |
c906108c | 1640 | } |
c5aa993b | 1641 | longlongendswap (disbuf); /* FIXME: ONly on big endian hosts */ |
c906108c | 1642 | while (scan < limit) |
7a292a7a | 1643 | { |
c5aa993b | 1644 | c = *scan++; /* a byte of our long long value */ |
c906108c | 1645 | if (leadzero) |
7a292a7a SS |
1646 | { |
1647 | if (c == 0) | |
1648 | continue; | |
1649 | else | |
c5aa993b | 1650 | leadzero = 0; /* henceforth we print even zeroes */ |
7a292a7a | 1651 | } |
c5aa993b | 1652 | nib = c >> 4; /* high nibble bits */ |
7a292a7a | 1653 | *outbuff++ = hexlate[nib]; |
c5aa993b | 1654 | nib = c & 0x0f; /* low nibble bits */ |
7a292a7a | 1655 | *outbuff++ = hexlate[nib]; |
c906108c | 1656 | } |
c5aa993b | 1657 | return outbuff; |
c906108c | 1658 | } |
c5aa993b | 1659 | } /* longlong_hexchars */ |
c906108c SS |
1660 | |
1661 | ||
1662 | ||
1663 | /* I am only going to call this when writing virtual byte streams. | |
1664 | Which possably entails endian conversions | |
c5aa993b JM |
1665 | */ |
1666 | static int | |
1667 | monitor_write_memory_longlongs (memaddr, myaddr, len) | |
1668 | CORE_ADDR memaddr; | |
1669 | char *myaddr; | |
1670 | int len; | |
c906108c | 1671 | { |
c5aa993b JM |
1672 | static char hexstage[20]; /* At least 16 digits required, plus null */ |
1673 | char *endstring; | |
1674 | long long *llptr; | |
1675 | long long value; | |
1676 | int written = 0; | |
1677 | llptr = (unsigned long long *) myaddr; | |
1678 | if (len == 0) | |
1679 | return 0; | |
1680 | monitor_printf (current_monitor->setmem.cmdll, memaddr); | |
1681 | monitor_expect_prompt (NULL, 0); | |
1682 | while (len >= 8) | |
1683 | { | |
1684 | value = *llptr; | |
1685 | endstring = longlong_hexchars (*llptr, hexstage); | |
1686 | *endstring = '\0'; /* NUll terminate for printf */ | |
1687 | monitor_printf ("%s\r", hexstage); | |
1688 | llptr++; | |
1689 | memaddr += 8; | |
1690 | written += 8; | |
c906108c | 1691 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1692 | monitor_expect_prompt (NULL, 0); |
1693 | len -= 8; | |
c906108c SS |
1694 | } |
1695 | /* Now exit the sub mode */ | |
1696 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1697 | monitor_expect_prompt (NULL, 0); |
1698 | return written; | |
1699 | } /* */ | |
c906108c SS |
1700 | |
1701 | ||
1702 | ||
1703 | /* ----- MONITOR_WRITE_MEMORY_BLOCK ---------------------------- */ | |
1704 | /* This is for the large blocks of memory which may occur in downloading. | |
1705 | And for monitors which use interactive entry, | |
1706 | And for monitors which do not have other downloading methods. | |
1707 | Without this, we will end up calling monitor_write_memory many times | |
1708 | and do the entry and exit of the sub mode many times | |
1709 | This currently assumes... | |
c5aa993b JM |
1710 | MO_SETMEM_INTERACTIVE |
1711 | ! MO_NO_ECHO_ON_SETMEM | |
1712 | To use this, the you have to patch the monitor_cmds block with | |
1713 | this function. Otherwise, its not tuned up for use by all | |
1714 | monitor variations. | |
1715 | */ | |
c906108c | 1716 | |
c5aa993b JM |
1717 | static int |
1718 | monitor_write_memory_block (memaddr, myaddr, len) | |
1719 | CORE_ADDR memaddr; | |
1720 | char *myaddr; | |
1721 | int len; | |
c906108c | 1722 | { |
c5aa993b JM |
1723 | int written; |
1724 | written = 0; | |
c906108c | 1725 | /* FIXME: This would be a good place to put the zero test */ |
c5aa993b | 1726 | #if 1 |
c906108c | 1727 | if ((len > 8) && (((len & 0x07)) == 0) && current_monitor->setmem.cmdll) |
c5aa993b JM |
1728 | { |
1729 | return monitor_write_memory_longlongs (memaddr, myaddr, len); | |
1730 | } | |
1731 | #endif | |
1732 | #if 0 | |
c906108c SS |
1733 | if (len > 4) |
1734 | { | |
c5aa993b JM |
1735 | int sublen; |
1736 | written = monitor_write_even_block (memaddr, myaddr, len); | |
c906108c | 1737 | /* Adjust calling parameters by written amount */ |
c5aa993b JM |
1738 | memaddr += written; |
1739 | myaddr += written; | |
1740 | len -= written; | |
c906108c SS |
1741 | } |
1742 | #endif | |
c5aa993b JM |
1743 | written = monitor_write_memory_bytes (memaddr, myaddr, len); |
1744 | return written; | |
c906108c SS |
1745 | } |
1746 | ||
1747 | /* This is an alternate form of monitor_read_memory which is used for monitors | |
1748 | which can only read a single byte/word/etc. at a time. */ | |
1749 | ||
1750 | static int | |
1751 | monitor_read_memory_single (memaddr, myaddr, len) | |
1752 | CORE_ADDR memaddr; | |
1753 | char *myaddr; | |
1754 | int len; | |
1755 | { | |
1756 | unsigned int val; | |
c5aa993b | 1757 | char membuf[sizeof (int) * 2 + 1]; |
c906108c SS |
1758 | char *p; |
1759 | char *cmd; | |
1760 | int i; | |
1761 | ||
2df3850c | 1762 | monitor_debug ("MON read single\n"); |
c906108c SS |
1763 | #if 0 |
1764 | /* Can't actually use long longs (nice idea, though). In fact, the | |
1765 | call to strtoul below will fail if it tries to convert a value | |
1766 | that's too big to fit in a long. */ | |
1767 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->getmem.cmdll) | |
1768 | { | |
1769 | len = 8; | |
1770 | cmd = current_monitor->getmem.cmdll; | |
1771 | } | |
1772 | else | |
1773 | #endif | |
1774 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->getmem.cmdl) | |
1775 | { | |
1776 | len = 4; | |
1777 | cmd = current_monitor->getmem.cmdl; | |
1778 | } | |
1779 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->getmem.cmdw) | |
1780 | { | |
1781 | len = 2; | |
1782 | cmd = current_monitor->getmem.cmdw; | |
1783 | } | |
1784 | else | |
1785 | { | |
1786 | len = 1; | |
1787 | cmd = current_monitor->getmem.cmdb; | |
1788 | } | |
1789 | ||
1790 | /* Send the examine command. */ | |
1791 | ||
1792 | monitor_printf (cmd, memaddr); | |
1793 | ||
1794 | /* If RESP_DELIM is specified, we search for that as a leading | |
1795 | delimiter for the memory value. Otherwise, we just start | |
1796 | searching from the start of the buf. */ | |
1797 | ||
1798 | if (current_monitor->getmem.resp_delim) | |
c5aa993b | 1799 | { |
2df3850c | 1800 | monitor_debug ("EXP getmem.resp_delim\n"); |
c906108c SS |
1801 | monitor_expect_regexp (&getmem_resp_delim_pattern, NULL, 0); |
1802 | } | |
1803 | ||
1804 | /* Now, read the appropriate number of hex digits for this loc, | |
1805 | skipping spaces. */ | |
1806 | ||
1807 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */ | |
c5aa993b | 1808 | if (current_monitor->flags & MO_HEX_PREFIX) |
c906108c SS |
1809 | { |
1810 | int c; | |
1811 | ||
1812 | c = readchar (timeout); | |
1813 | while (c == ' ') | |
1814 | c = readchar (timeout); | |
1815 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1816 | ; | |
1817 | else | |
2df3850c JM |
1818 | monitor_error ("monitor_read_memory_single", |
1819 | "bad response from monitor", | |
c906108c SS |
1820 | memaddr, i, membuf, c); |
1821 | } | |
1822 | for (i = 0; i < len * 2; i++) | |
1823 | { | |
1824 | int c; | |
1825 | ||
1826 | while (1) | |
1827 | { | |
1828 | c = readchar (timeout); | |
1829 | if (isxdigit (c)) | |
1830 | break; | |
1831 | if (c == ' ') | |
1832 | continue; | |
1833 | ||
2df3850c JM |
1834 | monitor_error ("monitor_read_memory_single", |
1835 | "bad response from monitor", | |
c906108c SS |
1836 | memaddr, i, membuf, c); |
1837 | } | |
1838 | ||
1839 | membuf[i] = c; | |
1840 | } | |
1841 | ||
1842 | membuf[i] = '\000'; /* terminate the number */ | |
1843 | ||
1844 | /* If TERM is present, we wait for that to show up. Also, (if TERM is | |
1845 | present), we will send TERM_CMD if that is present. In any case, we collect | |
1846 | all of the output into buf, and then wait for the normal prompt. */ | |
1847 | ||
1848 | if (current_monitor->getmem.term) | |
1849 | { | |
c5aa993b | 1850 | monitor_expect (current_monitor->getmem.term, NULL, 0); /* get response */ |
c906108c SS |
1851 | |
1852 | if (current_monitor->getmem.term_cmd) | |
1853 | { | |
1854 | monitor_printf (current_monitor->getmem.term_cmd); | |
1855 | monitor_expect_prompt (NULL, 0); | |
1856 | } | |
1857 | } | |
1858 | else | |
c5aa993b | 1859 | monitor_expect_prompt (NULL, 0); /* get response */ |
c906108c SS |
1860 | |
1861 | p = membuf; | |
1862 | val = strtoul (membuf, &p, 16); | |
1863 | ||
1864 | if (val == 0 && membuf == p) | |
2df3850c JM |
1865 | monitor_error ("monitor_read_memory_single", |
1866 | "bad value from monitor", | |
c906108c SS |
1867 | memaddr, 0, membuf, 0); |
1868 | ||
1869 | /* supply register stores in target byte order, so swap here */ | |
1870 | ||
1871 | store_unsigned_integer (myaddr, len, val); | |
1872 | ||
1873 | return len; | |
1874 | } | |
1875 | ||
1876 | /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's | |
1877 | memory at MEMADDR. Returns length moved. Currently, we do no more | |
1878 | than 16 bytes at a time. */ | |
1879 | ||
1880 | static int | |
1881 | monitor_read_memory (memaddr, myaddr, len) | |
1882 | CORE_ADDR memaddr; | |
1883 | char *myaddr; | |
1884 | int len; | |
1885 | { | |
1886 | unsigned int val; | |
1887 | char buf[512]; | |
1888 | char *p, *p1; | |
1889 | int resp_len; | |
1890 | int i; | |
1891 | CORE_ADDR dumpaddr; | |
1892 | ||
1893 | if (len <= 0) | |
1894 | { | |
2df3850c | 1895 | monitor_debug ("Zero length call to monitor_read_memory\n"); |
c906108c SS |
1896 | return 0; |
1897 | } | |
1898 | ||
2df3850c JM |
1899 | monitor_debug ("MON read block ta(%s) ha(%lx) %d\n", |
1900 | paddr_nz (memaddr), (long) myaddr, len); | |
c906108c SS |
1901 | |
1902 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1903 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
1904 | ||
1905 | if (current_monitor->flags & MO_GETMEM_READ_SINGLE) | |
1906 | return monitor_read_memory_single (memaddr, myaddr, len); | |
1907 | ||
1908 | len = min (len, 16); | |
1909 | ||
1910 | /* Some dumpers align the first data with the preceeding 16 | |
1911 | byte boundary. Some print blanks and start at the | |
1912 | requested boundary. EXACT_DUMPADDR | |
c5aa993b | 1913 | */ |
c906108c SS |
1914 | |
1915 | dumpaddr = (current_monitor->flags & MO_EXACT_DUMPADDR) | |
c5aa993b | 1916 | ? memaddr : memaddr & ~0x0f; |
c906108c SS |
1917 | |
1918 | /* See if xfer would cross a 16 byte boundary. If so, clip it. */ | |
1919 | if (((memaddr ^ (memaddr + len - 1)) & ~0xf) != 0) | |
1920 | len = ((memaddr + len) & ~0xf) - memaddr; | |
1921 | ||
1922 | /* send the memory examine command */ | |
1923 | ||
1924 | if (current_monitor->flags & MO_GETMEM_NEEDS_RANGE) | |
7a292a7a | 1925 | monitor_printf (current_monitor->getmem.cmdb, memaddr, memaddr + len); |
c906108c SS |
1926 | else if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1927 | monitor_printf (current_monitor->getmem.cmdb, dumpaddr); | |
1928 | else | |
1929 | monitor_printf (current_monitor->getmem.cmdb, memaddr, len); | |
1930 | ||
1931 | /* If TERM is present, we wait for that to show up. Also, (if TERM | |
1932 | is present), we will send TERM_CMD if that is present. In any | |
1933 | case, we collect all of the output into buf, and then wait for | |
1934 | the normal prompt. */ | |
1935 | ||
1936 | if (current_monitor->getmem.term) | |
1937 | { | |
c5aa993b | 1938 | resp_len = monitor_expect (current_monitor->getmem.term, buf, sizeof buf); /* get response */ |
c906108c SS |
1939 | |
1940 | if (resp_len <= 0) | |
2df3850c JM |
1941 | monitor_error ("monitor_read_memory", |
1942 | "excessive response from monitor", | |
c906108c SS |
1943 | memaddr, resp_len, buf, 0); |
1944 | ||
1945 | if (current_monitor->getmem.term_cmd) | |
1946 | { | |
1947 | SERIAL_WRITE (monitor_desc, current_monitor->getmem.term_cmd, | |
1948 | strlen (current_monitor->getmem.term_cmd)); | |
1949 | monitor_expect_prompt (NULL, 0); | |
1950 | } | |
1951 | } | |
1952 | else | |
c5aa993b | 1953 | resp_len = monitor_expect_prompt (buf, sizeof buf); /* get response */ |
c906108c SS |
1954 | |
1955 | p = buf; | |
1956 | ||
1957 | /* If RESP_DELIM is specified, we search for that as a leading | |
1958 | delimiter for the values. Otherwise, we just start searching | |
1959 | from the start of the buf. */ | |
1960 | ||
1961 | if (current_monitor->getmem.resp_delim) | |
1962 | { | |
1963 | int retval, tmp; | |
1964 | struct re_registers resp_strings; | |
2df3850c | 1965 | monitor_debug ("MON getmem.resp_delim %s\n", current_monitor->getmem.resp_delim); |
c906108c SS |
1966 | |
1967 | memset (&resp_strings, 0, sizeof (struct re_registers)); | |
1968 | tmp = strlen (p); | |
1969 | retval = re_search (&getmem_resp_delim_pattern, p, tmp, 0, tmp, | |
1970 | &resp_strings); | |
1971 | ||
1972 | if (retval < 0) | |
2df3850c JM |
1973 | monitor_error ("monitor_read_memory", |
1974 | "bad response from monitor", | |
c906108c SS |
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) | |
2df3850c JM |
1981 | monitor_error ("monitor_read_memory", |
1982 | "bad response from monitor", | |
c906108c SS |
1983 | memaddr, resp_len, buf, 0); |
1984 | p += strlen (current_monitor->getmem.resp_delim); | |
1985 | #endif | |
1986 | } | |
2df3850c | 1987 | monitor_debug ("MON scanning %d ,%lx '%s'\n", len, (long) 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; |
2df3850c JM |
2004 | if (monitor_debug_p || remote_debug) |
2005 | fprintf_unfiltered (gdb_stdlog, "[%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"); | |
2df3850c JM |
2017 | if (monitor_debug_p || remote_debug) |
2018 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c5aa993b | 2019 | return fetched; /* Return the number of bytes actually read */ |
c906108c | 2020 | } |
2df3850c | 2021 | monitor_debug ("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') | |
2df3850c JM |
2033 | monitor_error ("monitor_read_memory", |
2034 | "badly terminated response from monitor", | |
c906108c SS |
2035 | memaddr, resp_len, buf, 0); |
2036 | p++; | |
2037 | } | |
2038 | ||
2039 | val = strtoul (p, &p1, 16); | |
2040 | ||
2041 | if (val == 0 && p == p1) | |
2df3850c JM |
2042 | monitor_error ("monitor_read_memory", |
2043 | "bad value from monitor", | |
c906108c SS |
2044 | memaddr, resp_len, buf, 0); |
2045 | ||
2046 | *myaddr++ = val; | |
2047 | ||
2048 | if (i == 1) | |
2049 | break; | |
2050 | ||
2051 | p = p1; | |
2052 | } | |
2053 | ||
2054 | return len; | |
2055 | } | |
2056 | ||
2057 | static int | |
2058 | monitor_xfer_memory (memaddr, myaddr, len, write, target) | |
2059 | CORE_ADDR memaddr; | |
2060 | char *myaddr; | |
2061 | int len; | |
2062 | int write; | |
c5aa993b | 2063 | struct target_ops *target; /* ignored */ |
c906108c SS |
2064 | { |
2065 | return dcache_xfer_memory (remote_dcache, memaddr, myaddr, len, write); | |
2066 | } | |
2067 | ||
2068 | static void | |
2069 | monitor_kill () | |
2070 | { | |
c5aa993b | 2071 | return; /* ignore attempts to kill target system */ |
c906108c SS |
2072 | } |
2073 | ||
2074 | /* All we actually do is set the PC to the start address of exec_bfd, and start | |
2075 | the program at that point. */ | |
2076 | ||
2077 | static void | |
2078 | monitor_create_inferior (exec_file, args, env) | |
2079 | char *exec_file; | |
2080 | char *args; | |
2081 | char **env; | |
2082 | { | |
2083 | if (args && (*args != '\000')) | |
2084 | error ("Args are not supported by the monitor."); | |
2085 | ||
2086 | first_time = 1; | |
2087 | clear_proceed_status (); | |
2088 | proceed (bfd_get_start_address (exec_bfd), TARGET_SIGNAL_0, 0); | |
2089 | } | |
2090 | ||
2091 | /* Clean up when a program exits. | |
2092 | The program actually lives on in the remote processor's RAM, and may be | |
2093 | run again without a download. Don't leave it full of breakpoint | |
2094 | instructions. */ | |
2095 | ||
2096 | static void | |
2097 | monitor_mourn_inferior () | |
2098 | { | |
2099 | unpush_target (targ_ops); | |
2100 | generic_mourn_inferior (); /* Do all the proper things now */ | |
2101 | } | |
2102 | ||
c906108c SS |
2103 | /* Tell the monitor to add a breakpoint. */ |
2104 | ||
2105 | static int | |
2106 | monitor_insert_breakpoint (addr, shadow) | |
2107 | CORE_ADDR addr; | |
2108 | char *shadow; | |
2109 | { | |
2110 | int i; | |
2111 | unsigned char *bp; | |
2112 | int bplen; | |
2113 | ||
2df3850c JM |
2114 | monitor_debug ("MON inst bkpt %s\n", paddr (addr)); |
2115 | if (current_monitor->set_break == NULL) | |
c906108c SS |
2116 | error ("No set_break defined for this monitor"); |
2117 | ||
2118 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2119 | addr = ADDR_BITS_REMOVE (addr); | |
2120 | ||
2121 | /* Determine appropriate breakpoint size for this address. */ | |
2122 | bp = memory_breakpoint_from_pc (&addr, &bplen); | |
2123 | ||
9e086581 | 2124 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2125 | { |
2126 | if (breakaddr[i] == 0) | |
2127 | { | |
2128 | breakaddr[i] = addr; | |
2129 | monitor_read_memory (addr, shadow, bplen); | |
2130 | monitor_printf (current_monitor->set_break, addr); | |
2131 | monitor_expect_prompt (NULL, 0); | |
2132 | return 0; | |
2133 | } | |
2134 | } | |
2135 | ||
9e086581 | 2136 | error ("Too many breakpoints (> %d) for monitor.", current_monitor->num_breakpoints); |
c906108c SS |
2137 | } |
2138 | ||
2139 | /* Tell the monitor to remove a breakpoint. */ | |
2140 | ||
2141 | static int | |
2142 | monitor_remove_breakpoint (addr, shadow) | |
2143 | CORE_ADDR addr; | |
2144 | char *shadow; | |
2145 | { | |
2146 | int i; | |
2147 | ||
2df3850c JM |
2148 | monitor_debug ("MON rmbkpt %s\n", paddr (addr)); |
2149 | if (current_monitor->clr_break == NULL) | |
c906108c SS |
2150 | error ("No clr_break defined for this monitor"); |
2151 | ||
2152 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2153 | addr = ADDR_BITS_REMOVE (addr); | |
2154 | ||
9e086581 | 2155 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2156 | { |
2157 | if (breakaddr[i] == addr) | |
2158 | { | |
2159 | breakaddr[i] = 0; | |
2160 | /* some monitors remove breakpoints based on the address */ | |
2161 | if (current_monitor->flags & MO_CLR_BREAK_USES_ADDR) | |
2162 | monitor_printf (current_monitor->clr_break, addr); | |
2163 | else if (current_monitor->flags & MO_CLR_BREAK_1_BASED) | |
2164 | monitor_printf (current_monitor->clr_break, i + 1); | |
2165 | else | |
2166 | monitor_printf (current_monitor->clr_break, i); | |
2167 | monitor_expect_prompt (NULL, 0); | |
2168 | return 0; | |
2169 | } | |
2170 | } | |
2171 | fprintf_unfiltered (gdb_stderr, | |
2df3850c JM |
2172 | "Can't find breakpoint associated with 0x%s\n", |
2173 | paddr_nz (addr)); | |
c906108c SS |
2174 | return 1; |
2175 | } | |
2176 | ||
2177 | /* monitor_wait_srec_ack -- wait for the target to send an acknowledgement for | |
2178 | an S-record. Return non-zero if the ACK is received properly. */ | |
2179 | ||
2180 | static int | |
2181 | monitor_wait_srec_ack () | |
2182 | { | |
d4f3574e | 2183 | int ch; |
c906108c SS |
2184 | |
2185 | if (current_monitor->flags & MO_SREC_ACK_PLUS) | |
2186 | { | |
2187 | return (readchar (timeout) == '+'); | |
2188 | } | |
2189 | else if (current_monitor->flags & MO_SREC_ACK_ROTATE) | |
2190 | { | |
2191 | /* Eat two backspaces, a "rotating" char (|/-\), and a space. */ | |
2192 | if ((ch = readchar (1)) < 0) | |
2193 | return 0; | |
2194 | if ((ch = readchar (1)) < 0) | |
2195 | return 0; | |
2196 | if ((ch = readchar (1)) < 0) | |
2197 | return 0; | |
2198 | if ((ch = readchar (1)) < 0) | |
2199 | return 0; | |
2200 | } | |
2201 | return 1; | |
2202 | } | |
2203 | ||
2204 | /* monitor_load -- download a file. */ | |
2205 | ||
2206 | static void | |
2207 | monitor_load (file, from_tty) | |
c5aa993b JM |
2208 | char *file; |
2209 | int from_tty; | |
c906108c SS |
2210 | { |
2211 | dcache_flush (remote_dcache); | |
2df3850c | 2212 | monitor_debug ("MON load\n"); |
c906108c | 2213 | |
2df3850c | 2214 | if (current_monitor->load_routine) |
c906108c SS |
2215 | current_monitor->load_routine (monitor_desc, file, hashmark); |
2216 | else | |
2217 | { /* The default is ascii S-records */ | |
2218 | int n; | |
2219 | unsigned long load_offset; | |
2220 | char buf[128]; | |
2221 | ||
2222 | /* enable user to specify address for downloading as 2nd arg to load */ | |
2223 | n = sscanf (file, "%s 0x%lx", buf, &load_offset); | |
2224 | if (n > 1) | |
2225 | file = buf; | |
2226 | else | |
2227 | load_offset = 0; | |
2228 | ||
2229 | monitor_printf (current_monitor->load); | |
2230 | if (current_monitor->loadresp) | |
2231 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
2232 | ||
2233 | load_srec (monitor_desc, file, (bfd_vma) load_offset, | |
2234 | 32, SREC_ALL, hashmark, | |
2235 | current_monitor->flags & MO_SREC_ACK ? | |
c5aa993b | 2236 | monitor_wait_srec_ack : NULL); |
c906108c SS |
2237 | |
2238 | monitor_expect_prompt (NULL, 0); | |
2239 | } | |
2240 | ||
2241 | /* Finally, make the PC point at the start address */ | |
2242 | ||
2243 | if (exec_bfd) | |
2244 | write_pc (bfd_get_start_address (exec_bfd)); | |
2245 | ||
2246 | inferior_pid = 0; /* No process now */ | |
2247 | ||
2248 | /* This is necessary because many things were based on the PC at the time that | |
2249 | we attached to the monitor, which is no longer valid now that we have loaded | |
2250 | new code (and just changed the PC). Another way to do this might be to call | |
2251 | normal_stop, except that the stack may not be valid, and things would get | |
2252 | horribly confused... */ | |
2253 | ||
2254 | clear_symtab_users (); | |
2255 | } | |
2256 | ||
2257 | static void | |
2258 | monitor_stop () | |
2259 | { | |
2df3850c | 2260 | monitor_debug ("MON stop\n"); |
c906108c SS |
2261 | if ((current_monitor->flags & MO_SEND_BREAK_ON_STOP) != 0) |
2262 | SERIAL_SEND_BREAK (monitor_desc); | |
2263 | if (current_monitor->stop) | |
2264 | monitor_printf_noecho (current_monitor->stop); | |
2265 | } | |
2266 | ||
96baa820 JM |
2267 | /* Put a COMMAND string out to MONITOR. Output from MONITOR is placed |
2268 | in OUTPUT until the prompt is seen. FIXME: We read the characters | |
2269 | ourseleves here cause of a nasty echo. */ | |
c906108c SS |
2270 | |
2271 | static void | |
96baa820 JM |
2272 | monitor_rcmd (char *command, |
2273 | struct gdb_file *outbuf) | |
c906108c SS |
2274 | { |
2275 | char *p; | |
2276 | int resp_len; | |
2277 | char buf[1000]; | |
2278 | ||
2279 | if (monitor_desc == NULL) | |
2280 | error ("monitor target not open."); | |
2281 | ||
2282 | p = current_monitor->prompt; | |
2283 | ||
2284 | /* Send the command. Note that if no args were supplied, then we're | |
2285 | just sending the monitor a newline, which is sometimes useful. */ | |
2286 | ||
96baa820 | 2287 | monitor_printf ("%s\r", (command ? command : "")); |
c906108c SS |
2288 | |
2289 | resp_len = monitor_expect_prompt (buf, sizeof buf); | |
2290 | ||
96baa820 | 2291 | fputs_unfiltered (buf, outbuf); /* Output the response */ |
c906108c SS |
2292 | } |
2293 | ||
2294 | /* Convert hex digit A to a number. */ | |
2295 | ||
2296 | #if 0 | |
2297 | static int | |
2298 | from_hex (a) | |
2299 | int a; | |
c5aa993b | 2300 | { |
c906108c SS |
2301 | if (a >= '0' && a <= '9') |
2302 | return a - '0'; | |
2303 | if (a >= 'a' && a <= 'f') | |
2304 | return a - 'a' + 10; | |
2305 | if (a >= 'A' && a <= 'F') | |
2306 | return a - 'A' + 10; | |
2307 | ||
2308 | error ("Reply contains invalid hex digit 0x%x", a); | |
2309 | } | |
2310 | #endif | |
2311 | ||
2312 | char * | |
2313 | monitor_get_dev_name () | |
2314 | { | |
2315 | return dev_name; | |
2316 | } | |
2317 | ||
2318 | static struct target_ops monitor_ops; | |
2319 | ||
2320 | static void | |
2321 | init_base_monitor_ops (void) | |
2322 | { | |
2323 | monitor_ops.to_shortname = NULL; | |
2324 | monitor_ops.to_longname = NULL; | |
2325 | monitor_ops.to_doc = NULL; | |
2326 | monitor_ops.to_open = NULL; | |
2327 | monitor_ops.to_close = monitor_close; | |
2328 | monitor_ops.to_attach = NULL; | |
2329 | monitor_ops.to_post_attach = NULL; | |
2330 | monitor_ops.to_require_attach = NULL; | |
2331 | monitor_ops.to_detach = monitor_detach; | |
2332 | monitor_ops.to_require_detach = NULL; | |
2333 | monitor_ops.to_resume = monitor_resume; | |
2334 | monitor_ops.to_wait = monitor_wait; | |
2335 | monitor_ops.to_post_wait = NULL; | |
2336 | monitor_ops.to_fetch_registers = monitor_fetch_registers; | |
2337 | monitor_ops.to_store_registers = monitor_store_registers; | |
2338 | monitor_ops.to_prepare_to_store = monitor_prepare_to_store; | |
2339 | monitor_ops.to_xfer_memory = monitor_xfer_memory; | |
2340 | monitor_ops.to_files_info = monitor_files_info; | |
2341 | monitor_ops.to_insert_breakpoint = monitor_insert_breakpoint; | |
2342 | monitor_ops.to_remove_breakpoint = monitor_remove_breakpoint; | |
2343 | monitor_ops.to_terminal_init = 0; | |
2344 | monitor_ops.to_terminal_inferior = 0; | |
2345 | monitor_ops.to_terminal_ours_for_output = 0; | |
2346 | monitor_ops.to_terminal_ours = 0; | |
2347 | monitor_ops.to_terminal_info = 0; | |
2348 | monitor_ops.to_kill = monitor_kill; | |
2349 | monitor_ops.to_load = monitor_load; | |
2350 | monitor_ops.to_lookup_symbol = 0; | |
2351 | monitor_ops.to_create_inferior = monitor_create_inferior; | |
2352 | monitor_ops.to_post_startup_inferior = NULL; | |
2353 | monitor_ops.to_acknowledge_created_inferior = NULL; | |
2354 | monitor_ops.to_clone_and_follow_inferior = NULL; | |
2355 | monitor_ops.to_post_follow_inferior_by_clone = NULL; | |
2356 | monitor_ops.to_insert_fork_catchpoint = NULL; | |
2357 | monitor_ops.to_remove_fork_catchpoint = NULL; | |
2358 | monitor_ops.to_insert_vfork_catchpoint = NULL; | |
2359 | monitor_ops.to_remove_vfork_catchpoint = NULL; | |
2360 | monitor_ops.to_has_forked = NULL; | |
2361 | monitor_ops.to_has_vforked = NULL; | |
2362 | monitor_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
2363 | monitor_ops.to_post_follow_vfork = NULL; | |
2364 | monitor_ops.to_insert_exec_catchpoint = NULL; | |
2365 | monitor_ops.to_remove_exec_catchpoint = NULL; | |
2366 | monitor_ops.to_has_execd = NULL; | |
2367 | monitor_ops.to_reported_exec_events_per_exec_call = NULL; | |
2368 | monitor_ops.to_has_exited = NULL; | |
2369 | monitor_ops.to_mourn_inferior = monitor_mourn_inferior; | |
2370 | monitor_ops.to_can_run = 0; | |
2371 | monitor_ops.to_notice_signals = 0; | |
2372 | monitor_ops.to_thread_alive = 0; | |
2373 | monitor_ops.to_stop = monitor_stop; | |
96baa820 | 2374 | monitor_ops.to_rcmd = monitor_rcmd; |
c906108c SS |
2375 | monitor_ops.to_pid_to_exec_file = NULL; |
2376 | monitor_ops.to_core_file_to_sym_file = NULL; | |
2377 | monitor_ops.to_stratum = process_stratum; | |
2378 | monitor_ops.DONT_USE = 0; | |
2379 | monitor_ops.to_has_all_memory = 1; | |
2380 | monitor_ops.to_has_memory = 1; | |
2381 | monitor_ops.to_has_stack = 1; | |
2382 | monitor_ops.to_has_registers = 1; | |
2383 | monitor_ops.to_has_execution = 1; | |
2384 | monitor_ops.to_sections = 0; | |
2385 | monitor_ops.to_sections_end = 0; | |
2386 | monitor_ops.to_magic = OPS_MAGIC; | |
c5aa993b | 2387 | } /* init_base_monitor_ops */ |
c906108c SS |
2388 | |
2389 | /* Init the target_ops structure pointed at by OPS */ | |
2390 | ||
2391 | void | |
2392 | init_monitor_ops (ops) | |
2393 | struct target_ops *ops; | |
2394 | { | |
2395 | if (monitor_ops.to_magic != OPS_MAGIC) | |
2396 | init_base_monitor_ops (); | |
2397 | ||
2398 | memcpy (ops, &monitor_ops, sizeof monitor_ops); | |
2399 | } | |
2400 | ||
2401 | /* Define additional commands that are usually only used by monitors. */ | |
2402 | ||
2403 | void | |
2404 | _initialize_remote_monitors () | |
2405 | { | |
2406 | init_base_monitor_ops (); | |
2407 | add_show_from_set (add_set_cmd ("hash", no_class, var_boolean, | |
c5aa993b | 2408 | (char *) &hashmark, |
c906108c SS |
2409 | "Set display of activity while downloading a file.\n\ |
2410 | When enabled, a hashmark \'#\' is displayed.", | |
c5aa993b | 2411 | &setlist), |
c906108c | 2412 | &showlist); |
2df3850c JM |
2413 | |
2414 | #if 0 | |
2415 | /* FIXME: cagney/1999-10-07: Wait until there is a generic ``set | |
2416 | debug ...'' rather than another ``set ...debug'' command. */ | |
2417 | add_show_from_set | |
2418 | (add_set_cmd ("monitordebug", no_class, var_zinteger, | |
2419 | (char *) &monitor_debug_p, | |
2420 | "Set debugging of remote monitor communication.\n\ | |
2421 | When enabled, communication between GDB and the remote monitor\n\ | |
2422 | is displayed.", &setlist), | |
2423 | &showlist); | |
2424 | #endif | |
c906108c | 2425 | } |