Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Remote debugging interface for boot monitors, for GDB. |
d9fcf2fb | 2 | Copyright 1990-1993, 1995-1997, 1999-2000 Free Software Foundation, Inc. |
c906108c SS |
3 | Contributed by Cygnus Support. Written by Rob Savoye for Cygnus. |
4 | Resurrected from the ashes by Stu Grossman. | |
5 | ||
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
22 | |
23 | /* This file was derived from various remote-* modules. It is a collection | |
24 | of generic support functions so GDB can talk directly to a ROM based | |
25 | monitor. This saves use from having to hack an exception based handler | |
26 | into existance, and makes for quick porting. | |
27 | ||
28 | This module talks to a debug monitor called 'MONITOR', which | |
29 | We communicate with MONITOR via either a direct serial line, or a TCP | |
30 | (or possibly TELNET) stream to a terminal multiplexor, | |
31 | which in turn talks to the target board. */ | |
32 | ||
33 | /* FIXME 32x64: This code assumes that registers and addresses are at | |
34 | most 32 bits long. If they can be larger, you will need to declare | |
35 | values as LONGEST and use %llx or some such to print values when | |
36 | building commands to send to the monitor. Since we don't know of | |
37 | any actual 64-bit targets with ROM monitors that use this code, | |
38 | it's not an issue right now. -sts 4/18/96 */ | |
39 | ||
40 | #include "defs.h" | |
41 | #include "gdbcore.h" | |
42 | #include "target.h" | |
03f2053f | 43 | #include "gdb_wait.h" |
c906108c SS |
44 | #include <signal.h> |
45 | #include <ctype.h> | |
46 | #include "gdb_string.h" | |
47 | #include <sys/types.h> | |
48 | #include "command.h" | |
49 | #include "serial.h" | |
50 | #include "monitor.h" | |
51 | #include "gdbcmd.h" | |
52 | #include "inferior.h" | |
88987551 | 53 | #include "gdb_regex.h" |
c906108c SS |
54 | #include "dcache.h" |
55 | #include "srec.h" | |
56 | ||
57 | static char *dev_name; | |
58 | static struct target_ops *targ_ops; | |
59 | ||
a14ed312 | 60 | static void monitor_vsprintf (char *sndbuf, char *pattern, va_list args); |
c906108c | 61 | |
a14ed312 | 62 | static int readchar (int timeout); |
c906108c | 63 | |
a14ed312 KB |
64 | static void monitor_fetch_register (int regno); |
65 | static void monitor_store_register (int regno); | |
c906108c | 66 | |
2df3850c JM |
67 | static void monitor_printable_string (char *newstr, char *oldstr, int len); |
68 | static void monitor_error (char *function, char *message, CORE_ADDR memaddr, int len, char *string, int final_char); | |
a14ed312 KB |
69 | static void monitor_detach (char *args, int from_tty); |
70 | static void monitor_resume (int pid, int step, enum target_signal sig); | |
71 | static void monitor_interrupt (int signo); | |
72 | static void monitor_interrupt_twice (int signo); | |
73 | static void monitor_interrupt_query (void); | |
74 | static void monitor_wait_cleanup (void *old_timeout); | |
75 | ||
76 | static int monitor_wait (int pid, struct target_waitstatus *status); | |
77 | static void monitor_fetch_registers (int regno); | |
78 | static void monitor_store_registers (int regno); | |
79 | static void monitor_prepare_to_store (void); | |
80 | static int monitor_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, | |
81 | int write, struct target_ops *target); | |
82 | static void monitor_files_info (struct target_ops *ops); | |
83 | static int monitor_insert_breakpoint (CORE_ADDR addr, char *shadow); | |
84 | static int monitor_remove_breakpoint (CORE_ADDR addr, char *shadow); | |
85 | static void monitor_kill (void); | |
86 | static void monitor_load (char *file, int from_tty); | |
87 | static void monitor_mourn_inferior (void); | |
88 | static void monitor_stop (void); | |
89 | ||
90 | static int monitor_read_memory (CORE_ADDR addr, char *myaddr, int len); | |
91 | static int monitor_write_memory (CORE_ADDR addr, char *myaddr, int len); | |
92 | static int monitor_write_memory_bytes (CORE_ADDR addr, char *myaddr, int len); | |
93 | static int monitor_write_memory_block (CORE_ADDR memaddr, | |
94 | char *myaddr, int len); | |
95 | static int monitor_expect_regexp (struct re_pattern_buffer *pat, | |
96 | char *buf, int buflen); | |
97 | static void monitor_dump_regs (void); | |
c906108c | 98 | #if 0 |
a14ed312 KB |
99 | static int from_hex (int a); |
100 | static unsigned long get_hex_word (void); | |
c906108c | 101 | #endif |
a14ed312 | 102 | static void parse_register_dump (char *, int); |
c906108c SS |
103 | |
104 | static struct monitor_ops *current_monitor; | |
105 | ||
106 | static int hashmark; /* flag set by "set hash" */ | |
107 | ||
108 | static int timeout = 30; | |
109 | ||
110 | static int in_monitor_wait = 0; /* Non-zero means we are in monitor_wait() */ | |
111 | ||
c5aa993b | 112 | static void (*ofunc) (); /* Old SIGINT signal handler */ |
c906108c | 113 | |
9e086581 JM |
114 | static CORE_ADDR *breakaddr; |
115 | ||
c906108c SS |
116 | /* Descriptor for I/O to remote machine. Initialize it to NULL so |
117 | that monitor_open knows that we don't have a file open when the | |
118 | program starts. */ | |
119 | ||
120 | static serial_t monitor_desc = NULL; | |
121 | ||
122 | /* Pointer to regexp pattern matching data */ | |
123 | ||
124 | static struct re_pattern_buffer register_pattern; | |
125 | static char register_fastmap[256]; | |
126 | ||
127 | static struct re_pattern_buffer getmem_resp_delim_pattern; | |
128 | static char getmem_resp_delim_fastmap[256]; | |
129 | ||
130 | static int dump_reg_flag; /* Non-zero means do a dump_registers cmd when | |
131 | monitor_wait wakes up. */ | |
132 | ||
133 | static DCACHE *remote_dcache; | |
c5aa993b JM |
134 | static int first_time = 0; /* is this the first time we're executing after |
135 | gaving created the child proccess? */ | |
c906108c | 136 | |
d4f3574e SS |
137 | #define TARGET_BUF_SIZE 2048 |
138 | ||
2df3850c JM |
139 | /* Monitor specific debugging information. Typically only useful to |
140 | the developer of a new monitor interface. */ | |
c906108c | 141 | |
2df3850c JM |
142 | static void monitor_debug (const char *fmt, ...) ATTR_FORMAT(printf, 1, 2); |
143 | ||
144 | static int monitor_debug_p = 0; | |
145 | ||
146 | /* NOTE: This file alternates between monitor_debug_p and remote_debug | |
147 | when determining if debug information is printed. Perhaphs this | |
148 | could be simplified. */ | |
149 | ||
150 | static void | |
151 | monitor_debug (const char *fmt, ...) | |
152 | { | |
153 | if (monitor_debug_p) | |
154 | { | |
155 | va_list args; | |
156 | va_start (args, fmt); | |
157 | vfprintf_filtered (gdb_stdlog, fmt, args); | |
158 | va_end (args); | |
159 | } | |
160 | } | |
161 | ||
162 | ||
163 | /* Convert a string into a printable representation, Return # byte in | |
164 | the new string. When LEN is >0 it specifies the size of the | |
165 | string. Otherwize strlen(oldstr) is used. */ | |
166 | ||
167 | static void | |
168 | monitor_printable_string (char *newstr, char *oldstr, int len) | |
c906108c | 169 | { |
c906108c | 170 | int ch; |
2df3850c JM |
171 | int i; |
172 | ||
173 | if (len <= 0) | |
174 | len = strlen (oldstr); | |
c906108c | 175 | |
2df3850c | 176 | for (i = 0; i < len; i++) |
c906108c | 177 | { |
2df3850c | 178 | ch = oldstr[i]; |
c906108c | 179 | switch (ch) |
c5aa993b | 180 | { |
c906108c SS |
181 | default: |
182 | if (isprint (ch)) | |
183 | *newstr++ = ch; | |
184 | ||
185 | else | |
186 | { | |
187 | sprintf (newstr, "\\x%02x", ch & 0xff); | |
188 | newstr += 4; | |
189 | } | |
190 | break; | |
191 | ||
c5aa993b JM |
192 | case '\\': |
193 | *newstr++ = '\\'; | |
194 | *newstr++ = '\\'; | |
195 | break; | |
196 | case '\b': | |
197 | *newstr++ = '\\'; | |
198 | *newstr++ = 'b'; | |
199 | break; | |
200 | case '\f': | |
201 | *newstr++ = '\\'; | |
202 | *newstr++ = 't'; | |
203 | break; | |
204 | case '\n': | |
205 | *newstr++ = '\\'; | |
206 | *newstr++ = 'n'; | |
207 | break; | |
208 | case '\r': | |
209 | *newstr++ = '\\'; | |
210 | *newstr++ = 'r'; | |
211 | break; | |
212 | case '\t': | |
213 | *newstr++ = '\\'; | |
214 | *newstr++ = 't'; | |
215 | break; | |
216 | case '\v': | |
217 | *newstr++ = '\\'; | |
218 | *newstr++ = 'v'; | |
219 | break; | |
220 | } | |
c906108c SS |
221 | } |
222 | ||
223 | *newstr++ = '\0'; | |
c906108c SS |
224 | } |
225 | ||
226 | /* Print monitor errors with a string, converting the string to printable | |
227 | representation. */ | |
228 | ||
229 | static void | |
2df3850c JM |
230 | monitor_error (char *function, char *message, |
231 | CORE_ADDR memaddr, int len, char *string, int final_char) | |
c906108c | 232 | { |
c5aa993b | 233 | int real_len = (len == 0 && string != (char *) 0) ? strlen (string) : len; |
c906108c | 234 | char *safe_string = alloca ((real_len * 4) + 1); |
2df3850c | 235 | monitor_printable_string (safe_string, string, real_len); |
c906108c SS |
236 | |
237 | if (final_char) | |
2df3850c | 238 | error ("%s (0x%s): %s: %s%c", function, paddr_nz (memaddr), message, safe_string, final_char); |
c906108c | 239 | else |
2df3850c | 240 | error ("%s (0x%s): %s: %s", function, paddr_nz (memaddr), message, safe_string); |
c906108c SS |
241 | } |
242 | ||
243 | /* Convert hex digit A to a number. */ | |
244 | ||
245 | static int | |
246 | fromhex (a) | |
247 | int a; | |
248 | { | |
249 | if (a >= '0' && a <= '9') | |
250 | return a - '0'; | |
251 | else if (a >= 'a' && a <= 'f') | |
252 | return a - 'a' + 10; | |
c5aa993b JM |
253 | else if (a >= 'A' && a <= 'F') |
254 | return a - 'A' + 10; | |
c906108c | 255 | else |
c5aa993b | 256 | error ("Invalid hex digit %d", a); |
c906108c SS |
257 | } |
258 | ||
259 | /* monitor_vsprintf - similar to vsprintf but handles 64-bit addresses | |
260 | ||
261 | This function exists to get around the problem that many host platforms | |
262 | don't have a printf that can print 64-bit addresses. The %A format | |
263 | specification is recognized as a special case, and causes the argument | |
264 | to be printed as a 64-bit hexadecimal address. | |
265 | ||
266 | Only format specifiers of the form "[0-9]*[a-z]" are recognized. | |
267 | If it is a '%s' format, the argument is a string; otherwise the | |
268 | argument is assumed to be a long integer. | |
269 | ||
270 | %% is also turned into a single %. | |
c5aa993b JM |
271 | */ |
272 | ||
c906108c SS |
273 | static void |
274 | monitor_vsprintf (sndbuf, pattern, args) | |
275 | char *sndbuf; | |
276 | char *pattern; | |
277 | va_list args; | |
278 | { | |
279 | char format[10]; | |
280 | char fmt; | |
281 | char *p; | |
282 | int i; | |
283 | long arg_int; | |
284 | CORE_ADDR arg_addr; | |
285 | char *arg_string; | |
286 | ||
287 | for (p = pattern; *p; p++) | |
288 | { | |
289 | if (*p == '%') | |
290 | { | |
291 | /* Copy the format specifier to a separate buffer. */ | |
292 | format[0] = *p++; | |
293 | for (i = 1; *p >= '0' && *p <= '9' && i < (int) sizeof (format) - 2; | |
294 | i++, p++) | |
295 | format[i] = *p; | |
296 | format[i] = fmt = *p; | |
c5aa993b | 297 | format[i + 1] = '\0'; |
c906108c SS |
298 | |
299 | /* Fetch the next argument and print it. */ | |
300 | switch (fmt) | |
301 | { | |
302 | case '%': | |
303 | strcpy (sndbuf, "%"); | |
304 | break; | |
305 | case 'A': | |
306 | arg_addr = va_arg (args, CORE_ADDR); | |
307 | strcpy (sndbuf, paddr_nz (arg_addr)); | |
308 | break; | |
309 | case 's': | |
310 | arg_string = va_arg (args, char *); | |
311 | sprintf (sndbuf, format, arg_string); | |
312 | break; | |
313 | default: | |
314 | arg_int = va_arg (args, long); | |
315 | sprintf (sndbuf, format, arg_int); | |
316 | break; | |
317 | } | |
318 | sndbuf += strlen (sndbuf); | |
319 | } | |
320 | else | |
321 | *sndbuf++ = *p; | |
322 | } | |
323 | *sndbuf = '\0'; | |
324 | } | |
325 | ||
326 | ||
327 | /* monitor_printf_noecho -- Send data to monitor, but don't expect an echo. | |
328 | Works just like printf. */ | |
329 | ||
330 | void | |
c5aa993b | 331 | monitor_printf_noecho (char *pattern,...) |
c906108c SS |
332 | { |
333 | va_list args; | |
334 | char sndbuf[2000]; | |
335 | int len; | |
336 | ||
c906108c | 337 | va_start (args, pattern); |
c906108c SS |
338 | |
339 | monitor_vsprintf (sndbuf, pattern, args); | |
340 | ||
341 | len = strlen (sndbuf); | |
342 | if (len + 1 > sizeof sndbuf) | |
343 | abort (); | |
344 | ||
2df3850c | 345 | if (monitor_debug_p) |
c906108c SS |
346 | { |
347 | char *safe_string = (char *) alloca ((strlen (sndbuf) * 4) + 1); | |
2df3850c JM |
348 | monitor_printable_string (safe_string, sndbuf, 0); |
349 | fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string); | |
c906108c | 350 | } |
c5aa993b | 351 | |
c906108c SS |
352 | monitor_write (sndbuf, len); |
353 | } | |
354 | ||
355 | /* monitor_printf -- Send data to monitor and check the echo. Works just like | |
356 | printf. */ | |
357 | ||
358 | void | |
c5aa993b | 359 | monitor_printf (char *pattern,...) |
c906108c SS |
360 | { |
361 | va_list args; | |
362 | char sndbuf[2000]; | |
363 | int len; | |
364 | ||
c906108c | 365 | va_start (args, pattern); |
c906108c SS |
366 | |
367 | monitor_vsprintf (sndbuf, pattern, args); | |
368 | ||
369 | len = strlen (sndbuf); | |
370 | if (len + 1 > sizeof sndbuf) | |
371 | abort (); | |
372 | ||
2df3850c | 373 | if (monitor_debug_p) |
c906108c SS |
374 | { |
375 | char *safe_string = (char *) alloca ((len * 4) + 1); | |
2df3850c JM |
376 | monitor_printable_string (safe_string, sndbuf, 0); |
377 | fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string); | |
c906108c SS |
378 | } |
379 | ||
380 | monitor_write (sndbuf, len); | |
381 | ||
382 | /* We used to expect that the next immediate output was the characters we | |
383 | just output, but sometimes some extra junk appeared before the characters | |
384 | we expected, like an extra prompt, or a portmaster sending telnet negotiations. | |
385 | So, just start searching for what we sent, and skip anything unknown. */ | |
2df3850c JM |
386 | monitor_debug ("ExpectEcho\n"); |
387 | monitor_expect (sndbuf, (char *) 0, 0); | |
c906108c SS |
388 | } |
389 | ||
390 | ||
391 | /* Write characters to the remote system. */ | |
392 | ||
393 | void | |
394 | monitor_write (buf, buflen) | |
395 | char *buf; | |
396 | int buflen; | |
397 | { | |
c5aa993b | 398 | if (SERIAL_WRITE (monitor_desc, buf, buflen)) |
c906108c SS |
399 | fprintf_unfiltered (gdb_stderr, "SERIAL_WRITE failed: %s\n", |
400 | safe_strerror (errno)); | |
401 | } | |
402 | ||
403 | ||
404 | /* Read a binary character from the remote system, doing all the fancy | |
405 | timeout stuff, but without interpreting the character in any way, | |
406 | and without printing remote debug information. */ | |
407 | ||
408 | int | |
409 | monitor_readchar () | |
410 | { | |
411 | int c; | |
412 | int looping; | |
413 | ||
414 | do | |
415 | { | |
416 | looping = 0; | |
417 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
418 | ||
419 | if (c >= 0) | |
c5aa993b | 420 | c &= 0xff; /* don't lose bit 7 */ |
c906108c SS |
421 | } |
422 | while (looping); | |
423 | ||
424 | if (c >= 0) | |
425 | return c; | |
426 | ||
427 | if (c == SERIAL_TIMEOUT) | |
c5aa993b | 428 | error ("Timeout reading from remote system."); |
c906108c SS |
429 | |
430 | perror_with_name ("remote-monitor"); | |
431 | } | |
432 | ||
433 | ||
434 | /* Read a character from the remote system, doing all the fancy | |
435 | timeout stuff. */ | |
436 | ||
437 | static int | |
438 | readchar (timeout) | |
439 | int timeout; | |
440 | { | |
441 | int c; | |
c5aa993b JM |
442 | static enum |
443 | { | |
444 | last_random, last_nl, last_cr, last_crnl | |
445 | } | |
446 | state = last_random; | |
c906108c SS |
447 | int looping; |
448 | ||
449 | do | |
450 | { | |
451 | looping = 0; | |
452 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
453 | ||
454 | if (c >= 0) | |
455 | { | |
456 | c &= 0x7f; | |
c906108c SS |
457 | /* This seems to interfere with proper function of the |
458 | input stream */ | |
2df3850c | 459 | if (monitor_debug_p || remote_debug) |
c906108c SS |
460 | { |
461 | char buf[2]; | |
462 | buf[0] = c; | |
463 | buf[1] = '\0'; | |
464 | puts_debug ("read -->", buf, "<--"); | |
465 | } | |
c5aa993b | 466 | |
c906108c SS |
467 | } |
468 | ||
469 | /* Canonicialize \n\r combinations into one \r */ | |
470 | if ((current_monitor->flags & MO_HANDLE_NL) != 0) | |
471 | { | |
472 | if ((c == '\r' && state == last_nl) | |
473 | || (c == '\n' && state == last_cr)) | |
474 | { | |
475 | state = last_crnl; | |
476 | looping = 1; | |
477 | } | |
478 | else if (c == '\r') | |
479 | state = last_cr; | |
480 | else if (c != '\n') | |
481 | state = last_random; | |
482 | else | |
483 | { | |
484 | state = last_nl; | |
485 | c = '\r'; | |
486 | } | |
487 | } | |
488 | } | |
489 | while (looping); | |
490 | ||
491 | if (c >= 0) | |
492 | return c; | |
493 | ||
494 | if (c == SERIAL_TIMEOUT) | |
7a292a7a | 495 | #if 0 |
c906108c SS |
496 | /* I fail to see how detaching here can be useful */ |
497 | if (in_monitor_wait) /* Watchdog went off */ | |
498 | { | |
499 | target_mourn_inferior (); | |
500 | error ("GDB serial timeout has expired. Target detached.\n"); | |
501 | } | |
502 | else | |
503 | #endif | |
504 | error ("Timeout reading from remote system."); | |
505 | ||
506 | perror_with_name ("remote-monitor"); | |
507 | } | |
508 | ||
509 | /* Scan input from the remote system, until STRING is found. If BUF is non- | |
510 | zero, then collect input until we have collected either STRING or BUFLEN-1 | |
511 | chars. In either case we terminate BUF with a 0. If input overflows BUF | |
512 | because STRING can't be found, return -1, else return number of chars in BUF | |
513 | (minus the terminating NUL). Note that in the non-overflow case, STRING | |
514 | will be at the end of BUF. */ | |
515 | ||
516 | int | |
517 | monitor_expect (string, buf, buflen) | |
518 | char *string; | |
519 | char *buf; | |
520 | int buflen; | |
521 | { | |
522 | char *p = string; | |
523 | int obuflen = buflen; | |
524 | int c; | |
525 | extern struct target_ops *targ_ops; | |
526 | ||
2df3850c | 527 | if (monitor_debug_p) |
c906108c SS |
528 | { |
529 | char *safe_string = (char *) alloca ((strlen (string) * 4) + 1); | |
2df3850c JM |
530 | monitor_printable_string (safe_string, string, 0); |
531 | fprintf_unfiltered (gdb_stdlog, "MON Expecting '%s'\n", safe_string); | |
c906108c SS |
532 | } |
533 | ||
534 | immediate_quit = 1; | |
535 | while (1) | |
536 | { | |
537 | if (buf) | |
538 | { | |
539 | if (buflen < 2) | |
540 | { | |
541 | *buf = '\000'; | |
542 | immediate_quit = 0; | |
543 | return -1; | |
544 | } | |
545 | ||
546 | c = readchar (timeout); | |
547 | if (c == '\000') | |
548 | continue; | |
549 | *buf++ = c; | |
550 | buflen--; | |
551 | } | |
552 | else | |
553 | c = readchar (timeout); | |
554 | ||
555 | /* Don't expect any ^C sent to be echoed */ | |
c5aa993b | 556 | |
c906108c SS |
557 | if (*p == '\003' || c == *p) |
558 | { | |
559 | p++; | |
560 | if (*p == '\0') | |
561 | { | |
562 | immediate_quit = 0; | |
563 | ||
564 | if (buf) | |
565 | { | |
566 | *buf++ = '\000'; | |
567 | return obuflen - buflen; | |
568 | } | |
569 | else | |
570 | return 0; | |
571 | } | |
572 | } | |
573 | else if ((c == '\021' || c == '\023') && | |
574 | (STREQ (targ_ops->to_shortname, "m32r") | |
575 | || STREQ (targ_ops->to_shortname, "mon2000"))) | |
c5aa993b | 576 | { /* m32r monitor emits random DC1/DC3 chars */ |
c906108c SS |
577 | continue; |
578 | } | |
579 | else | |
580 | { | |
a0b3c4fd JM |
581 | /* We got a character that doesn't match the string. We need to |
582 | back up p, but how far? If we're looking for "..howdy" and the | |
583 | monitor sends "...howdy"? There's certainly a match in there, | |
584 | but when we receive the third ".", we won't find it if we just | |
585 | restart the matching at the beginning of the string. | |
586 | ||
587 | This is a Boyer-Moore kind of situation. We want to reset P to | |
588 | the end of the longest prefix of STRING that is a suffix of | |
589 | what we've read so far. In the example above, that would be | |
590 | ".." --- the longest prefix of "..howdy" that is a suffix of | |
591 | "...". This longest prefix could be the empty string, if C | |
592 | is nowhere to be found in STRING. | |
593 | ||
594 | If this longest prefix is not the empty string, it must contain | |
595 | C, so let's search from the end of STRING for instances of C, | |
596 | and see if the portion of STRING before that is a suffix of | |
597 | what we read before C. Actually, we can search backwards from | |
598 | p, since we know no prefix can be longer than that. | |
599 | ||
600 | Note that we can use STRING itself, along with C, as a record | |
601 | of what we've received so far. :) */ | |
602 | int i; | |
603 | ||
604 | for (i = (p - string) - 1; i >= 0; i--) | |
605 | if (string[i] == c) | |
606 | { | |
607 | /* Is this prefix a suffix of what we've read so far? | |
608 | In other words, does | |
609 | string[0 .. i-1] == string[p - i, p - 1]? */ | |
610 | if (! memcmp (string, p - i, i)) | |
611 | { | |
612 | p = string + i + 1; | |
613 | break; | |
614 | } | |
615 | } | |
616 | if (i < 0) | |
617 | p = string; | |
c906108c SS |
618 | } |
619 | } | |
620 | } | |
621 | ||
622 | /* Search for a regexp. */ | |
623 | ||
624 | static int | |
625 | monitor_expect_regexp (pat, buf, buflen) | |
626 | struct re_pattern_buffer *pat; | |
627 | char *buf; | |
628 | int buflen; | |
629 | { | |
630 | char *mybuf; | |
631 | char *p; | |
2df3850c | 632 | monitor_debug ("MON Expecting regexp\n"); |
c906108c SS |
633 | if (buf) |
634 | mybuf = buf; | |
635 | else | |
636 | { | |
d4f3574e SS |
637 | mybuf = alloca (TARGET_BUF_SIZE); |
638 | buflen = TARGET_BUF_SIZE; | |
c906108c SS |
639 | } |
640 | ||
641 | p = mybuf; | |
642 | while (1) | |
643 | { | |
644 | int retval; | |
645 | ||
646 | if (p - mybuf >= buflen) | |
647 | { /* Buffer about to overflow */ | |
648 | ||
649 | /* On overflow, we copy the upper half of the buffer to the lower half. Not | |
650 | great, but it usually works... */ | |
651 | ||
652 | memcpy (mybuf, mybuf + buflen / 2, buflen / 2); | |
653 | p = mybuf + buflen / 2; | |
654 | } | |
655 | ||
656 | *p++ = readchar (timeout); | |
657 | ||
658 | retval = re_search (pat, mybuf, p - mybuf, 0, p - mybuf, NULL); | |
659 | if (retval >= 0) | |
660 | return 1; | |
661 | } | |
662 | } | |
663 | ||
664 | /* Keep discarding input until we see the MONITOR prompt. | |
665 | ||
666 | The convention for dealing with the prompt is that you | |
667 | o give your command | |
668 | o *then* wait for the prompt. | |
669 | ||
670 | Thus the last thing that a procedure does with the serial line will | |
671 | be an monitor_expect_prompt(). Exception: monitor_resume does not | |
672 | wait for the prompt, because the terminal is being handed over to | |
673 | the inferior. However, the next thing which happens after that is | |
674 | a monitor_wait which does wait for the prompt. Note that this | |
675 | includes abnormal exit, e.g. error(). This is necessary to prevent | |
676 | getting into states from which we can't recover. */ | |
677 | ||
678 | int | |
679 | monitor_expect_prompt (buf, buflen) | |
680 | char *buf; | |
681 | int buflen; | |
682 | { | |
2df3850c JM |
683 | monitor_debug ("MON Expecting prompt\n"); |
684 | return monitor_expect (current_monitor->prompt, buf, buflen); | |
c906108c SS |
685 | } |
686 | ||
687 | /* Get N 32-bit words from remote, each preceded by a space, and put | |
688 | them in registers starting at REGNO. */ | |
689 | ||
690 | #if 0 | |
691 | static unsigned long | |
692 | get_hex_word () | |
693 | { | |
694 | unsigned long val; | |
695 | int i; | |
696 | int ch; | |
697 | ||
698 | do | |
699 | ch = readchar (timeout); | |
c5aa993b | 700 | while (isspace (ch)); |
c906108c SS |
701 | |
702 | val = from_hex (ch); | |
703 | ||
704 | for (i = 7; i >= 1; i--) | |
705 | { | |
706 | ch = readchar (timeout); | |
707 | if (!isxdigit (ch)) | |
708 | break; | |
709 | val = (val << 4) | from_hex (ch); | |
710 | } | |
711 | ||
712 | return val; | |
713 | } | |
714 | #endif | |
715 | ||
716 | static void | |
717 | compile_pattern (pattern, compiled_pattern, fastmap) | |
718 | char *pattern; | |
719 | struct re_pattern_buffer *compiled_pattern; | |
720 | char *fastmap; | |
721 | { | |
722 | int tmp; | |
723 | const char *val; | |
724 | ||
725 | compiled_pattern->fastmap = fastmap; | |
726 | ||
727 | tmp = re_set_syntax (RE_SYNTAX_EMACS); | |
728 | val = re_compile_pattern (pattern, | |
729 | strlen (pattern), | |
730 | compiled_pattern); | |
731 | re_set_syntax (tmp); | |
732 | ||
733 | if (val) | |
734 | error ("compile_pattern: Can't compile pattern string `%s': %s!", pattern, val); | |
735 | ||
736 | if (fastmap) | |
737 | re_compile_fastmap (compiled_pattern); | |
738 | } | |
739 | ||
740 | /* Open a connection to a remote debugger. NAME is the filename used | |
741 | for communication. */ | |
742 | ||
743 | void | |
744 | monitor_open (args, mon_ops, from_tty) | |
745 | char *args; | |
746 | struct monitor_ops *mon_ops; | |
747 | int from_tty; | |
748 | { | |
749 | char *name; | |
750 | char **p; | |
751 | ||
752 | if (mon_ops->magic != MONITOR_OPS_MAGIC) | |
753 | error ("Magic number of monitor_ops struct wrong."); | |
754 | ||
755 | targ_ops = mon_ops->target; | |
756 | name = targ_ops->to_shortname; | |
757 | ||
758 | if (!args) | |
759 | error ("Use `target %s DEVICE-NAME' to use a serial port, or \n\ | |
760 | `target %s HOST-NAME:PORT-NUMBER' to use a network connection.", name, name); | |
761 | ||
762 | target_preopen (from_tty); | |
763 | ||
764 | /* Setup pattern for register dump */ | |
765 | ||
766 | if (mon_ops->register_pattern) | |
767 | compile_pattern (mon_ops->register_pattern, ®ister_pattern, | |
768 | register_fastmap); | |
769 | ||
770 | if (mon_ops->getmem.resp_delim) | |
771 | compile_pattern (mon_ops->getmem.resp_delim, &getmem_resp_delim_pattern, | |
772 | getmem_resp_delim_fastmap); | |
773 | ||
774 | unpush_target (targ_ops); | |
775 | ||
776 | if (dev_name) | |
777 | free (dev_name); | |
778 | dev_name = strsave (args); | |
779 | ||
780 | monitor_desc = SERIAL_OPEN (dev_name); | |
781 | ||
782 | if (!monitor_desc) | |
783 | perror_with_name (dev_name); | |
784 | ||
785 | if (baud_rate != -1) | |
786 | { | |
787 | if (SERIAL_SETBAUDRATE (monitor_desc, baud_rate)) | |
788 | { | |
789 | SERIAL_CLOSE (monitor_desc); | |
790 | perror_with_name (dev_name); | |
791 | } | |
792 | } | |
c5aa993b | 793 | |
c906108c SS |
794 | SERIAL_RAW (monitor_desc); |
795 | ||
796 | SERIAL_FLUSH_INPUT (monitor_desc); | |
797 | ||
798 | /* some systems only work with 2 stop bits */ | |
799 | ||
800 | SERIAL_SETSTOPBITS (monitor_desc, mon_ops->stopbits); | |
801 | ||
802 | current_monitor = mon_ops; | |
803 | ||
804 | /* See if we can wake up the monitor. First, try sending a stop sequence, | |
805 | then send the init strings. Last, remove all breakpoints. */ | |
806 | ||
807 | if (current_monitor->stop) | |
808 | { | |
809 | monitor_stop (); | |
810 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) | |
c5aa993b | 811 | { |
2df3850c | 812 | monitor_debug ("EXP Open echo\n"); |
c5aa993b JM |
813 | monitor_expect_prompt (NULL, 0); |
814 | } | |
c906108c SS |
815 | } |
816 | ||
817 | /* wake up the monitor and see if it's alive */ | |
818 | for (p = mon_ops->init; *p != NULL; p++) | |
819 | { | |
820 | /* Some of the characters we send may not be echoed, | |
c5aa993b JM |
821 | but we hope to get a prompt at the end of it all. */ |
822 | ||
c906108c | 823 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) |
c5aa993b | 824 | monitor_printf (*p); |
c906108c | 825 | else |
c5aa993b | 826 | monitor_printf_noecho (*p); |
c906108c SS |
827 | monitor_expect_prompt (NULL, 0); |
828 | } | |
829 | ||
830 | SERIAL_FLUSH_INPUT (monitor_desc); | |
831 | ||
9e086581 JM |
832 | /* Alloc breakpoints */ |
833 | if (mon_ops->set_break != NULL) | |
834 | { | |
835 | if (mon_ops->num_breakpoints == 0) | |
836 | mon_ops->num_breakpoints = 8; | |
837 | ||
838 | breakaddr = (CORE_ADDR *) xmalloc (mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
839 | memset (breakaddr, 0, mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
840 | } | |
841 | ||
c906108c SS |
842 | /* Remove all breakpoints */ |
843 | ||
844 | if (mon_ops->clr_all_break) | |
845 | { | |
846 | monitor_printf (mon_ops->clr_all_break); | |
847 | monitor_expect_prompt (NULL, 0); | |
848 | } | |
849 | ||
850 | if (from_tty) | |
851 | printf_unfiltered ("Remote target %s connected to %s\n", name, dev_name); | |
852 | ||
853 | push_target (targ_ops); | |
854 | ||
855 | inferior_pid = 42000; /* Make run command think we are busy... */ | |
856 | ||
857 | /* Give monitor_wait something to read */ | |
858 | ||
859 | monitor_printf (current_monitor->line_term); | |
860 | ||
861 | if (current_monitor->flags & MO_HAS_BLOCKWRITES) | |
862 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory_block); | |
863 | else | |
864 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory); | |
865 | start_remote (); | |
866 | } | |
867 | ||
868 | /* Close out all files and local state before this target loses | |
869 | control. */ | |
870 | ||
871 | void | |
872 | monitor_close (quitting) | |
873 | int quitting; | |
874 | { | |
875 | if (monitor_desc) | |
876 | SERIAL_CLOSE (monitor_desc); | |
9e086581 JM |
877 | |
878 | /* Free breakpoint memory */ | |
879 | if (breakaddr != NULL) | |
880 | { | |
881 | free (breakaddr); | |
882 | breakaddr = NULL; | |
883 | } | |
884 | ||
c906108c SS |
885 | monitor_desc = NULL; |
886 | } | |
887 | ||
888 | /* Terminate the open connection to the remote debugger. Use this | |
889 | when you want to detach and do something else with your gdb. */ | |
890 | ||
891 | static void | |
892 | monitor_detach (args, from_tty) | |
893 | char *args; | |
894 | int from_tty; | |
895 | { | |
896 | pop_target (); /* calls monitor_close to do the real work */ | |
897 | if (from_tty) | |
898 | printf_unfiltered ("Ending remote %s debugging\n", target_shortname); | |
899 | } | |
900 | ||
901 | /* Convert VALSTR into the target byte-ordered value of REGNO and store it. */ | |
902 | ||
903 | char * | |
904 | monitor_supply_register (regno, valstr) | |
905 | int regno; | |
906 | char *valstr; | |
907 | { | |
d4f3574e | 908 | ULONGEST val; |
c906108c SS |
909 | unsigned char regbuf[MAX_REGISTER_RAW_SIZE]; |
910 | char *p; | |
911 | ||
4ce44c66 | 912 | val = 0; |
d4f3574e SS |
913 | p = valstr; |
914 | while (p && *p != '\0') | |
915 | { | |
916 | if (*p == '\r' || *p == '\n') | |
917 | { | |
918 | while (*p != '\0') | |
919 | p++; | |
920 | break; | |
921 | } | |
922 | if (isspace (*p)) | |
923 | { | |
924 | p++; | |
925 | continue; | |
926 | } | |
927 | if (!isxdigit (*p) && *p != 'x') | |
928 | { | |
929 | break; | |
930 | } | |
931 | ||
932 | val <<= 4; | |
933 | val += fromhex (*p++); | |
934 | } | |
2df3850c | 935 | monitor_debug ("Supplying Register %d %s\n", regno, valstr); |
c906108c | 936 | |
d4f3574e | 937 | if (*p != '\0') |
c906108c SS |
938 | error ("monitor_supply_register (%d): bad value from monitor: %s.", |
939 | regno, valstr); | |
940 | ||
941 | /* supply register stores in target byte order, so swap here */ | |
942 | ||
943 | store_unsigned_integer (regbuf, REGISTER_RAW_SIZE (regno), val); | |
944 | ||
945 | supply_register (regno, regbuf); | |
946 | ||
947 | return p; | |
948 | } | |
949 | ||
950 | /* Tell the remote machine to resume. */ | |
951 | ||
952 | void | |
953 | flush_monitor_dcache () | |
954 | { | |
955 | dcache_flush (remote_dcache); | |
956 | } | |
957 | ||
958 | static void | |
959 | monitor_resume (pid, step, sig) | |
960 | int pid, step; | |
961 | enum target_signal sig; | |
962 | { | |
963 | /* Some monitors require a different command when starting a program */ | |
2df3850c | 964 | monitor_debug ("MON resume\n"); |
c906108c SS |
965 | if (current_monitor->flags & MO_RUN_FIRST_TIME && first_time == 1) |
966 | { | |
967 | first_time = 0; | |
968 | monitor_printf ("run\r"); | |
969 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) | |
c5aa993b | 970 | dump_reg_flag = 1; |
c906108c SS |
971 | return; |
972 | } | |
973 | dcache_flush (remote_dcache); | |
974 | if (step) | |
975 | monitor_printf (current_monitor->step); | |
976 | else | |
977 | { | |
978 | if (current_monitor->continue_hook) | |
c5aa993b JM |
979 | (*current_monitor->continue_hook) (); |
980 | else | |
981 | monitor_printf (current_monitor->cont); | |
c906108c SS |
982 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) |
983 | dump_reg_flag = 1; | |
984 | } | |
985 | } | |
986 | ||
987 | /* Parse the output of a register dump command. A monitor specific | |
988 | regexp is used to extract individual register descriptions of the | |
989 | form REG=VAL. Each description is split up into a name and a value | |
990 | string which are passed down to monitor specific code. */ | |
991 | ||
992 | static void | |
993 | parse_register_dump (buf, len) | |
994 | char *buf; | |
995 | int len; | |
996 | { | |
2df3850c JM |
997 | monitor_debug ("MON Parsing register dump\n"); |
998 | while (1) | |
c906108c SS |
999 | { |
1000 | int regnamelen, vallen; | |
1001 | char *regname, *val; | |
1002 | /* Element 0 points to start of register name, and element 1 | |
c5aa993b | 1003 | points to the start of the register value. */ |
c906108c SS |
1004 | struct re_registers register_strings; |
1005 | ||
1006 | memset (®ister_strings, 0, sizeof (struct re_registers)); | |
1007 | ||
1008 | if (re_search (®ister_pattern, buf, len, 0, len, | |
1009 | ®ister_strings) == -1) | |
1010 | break; | |
1011 | ||
1012 | regnamelen = register_strings.end[1] - register_strings.start[1]; | |
1013 | regname = buf + register_strings.start[1]; | |
1014 | vallen = register_strings.end[2] - register_strings.start[2]; | |
1015 | val = buf + register_strings.start[2]; | |
1016 | ||
1017 | current_monitor->supply_register (regname, regnamelen, val, vallen); | |
1018 | ||
1019 | buf += register_strings.end[0]; | |
1020 | len -= register_strings.end[0]; | |
1021 | } | |
1022 | } | |
1023 | ||
1024 | /* Send ^C to target to halt it. Target will respond, and send us a | |
1025 | packet. */ | |
1026 | ||
1027 | static void | |
1028 | monitor_interrupt (signo) | |
1029 | int signo; | |
1030 | { | |
1031 | /* If this doesn't work, try more severe steps. */ | |
1032 | signal (signo, monitor_interrupt_twice); | |
c5aa993b | 1033 | |
2df3850c JM |
1034 | if (monitor_debug_p || remote_debug) |
1035 | fprintf_unfiltered (gdb_stdlog, "monitor_interrupt called\n"); | |
c906108c SS |
1036 | |
1037 | target_stop (); | |
1038 | } | |
1039 | ||
1040 | /* The user typed ^C twice. */ | |
1041 | ||
1042 | static void | |
1043 | monitor_interrupt_twice (signo) | |
1044 | int signo; | |
1045 | { | |
1046 | signal (signo, ofunc); | |
c5aa993b | 1047 | |
c906108c SS |
1048 | monitor_interrupt_query (); |
1049 | ||
1050 | signal (signo, monitor_interrupt); | |
1051 | } | |
1052 | ||
1053 | /* Ask the user what to do when an interrupt is received. */ | |
1054 | ||
1055 | static void | |
1056 | monitor_interrupt_query () | |
1057 | { | |
1058 | target_terminal_ours (); | |
1059 | ||
1060 | if (query ("Interrupted while waiting for the program.\n\ | |
1061 | Give up (and stop debugging it)? ")) | |
1062 | { | |
1063 | target_mourn_inferior (); | |
1064 | return_to_top_level (RETURN_QUIT); | |
1065 | } | |
1066 | ||
1067 | target_terminal_inferior (); | |
1068 | } | |
1069 | ||
1070 | static void | |
1071 | monitor_wait_cleanup (old_timeout) | |
1072 | void *old_timeout; | |
1073 | { | |
c5aa993b | 1074 | timeout = *(int *) old_timeout; |
c906108c SS |
1075 | signal (SIGINT, ofunc); |
1076 | in_monitor_wait = 0; | |
1077 | } | |
1078 | ||
1079 | ||
1080 | ||
c5aa993b JM |
1081 | void |
1082 | monitor_wait_filter (char *buf, | |
1083 | int bufmax, | |
1084 | int *ext_resp_len, | |
1085 | struct target_waitstatus *status | |
1086 | ) | |
c906108c | 1087 | { |
c5aa993b | 1088 | int resp_len; |
c906108c SS |
1089 | do |
1090 | { | |
1091 | resp_len = monitor_expect_prompt (buf, bufmax); | |
c5aa993b | 1092 | *ext_resp_len = resp_len; |
c906108c SS |
1093 | |
1094 | if (resp_len <= 0) | |
1095 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1096 | } | |
1097 | while (resp_len < 0); | |
1098 | ||
1099 | /* Print any output characters that were preceded by ^O. */ | |
1100 | /* FIXME - This would be great as a user settabgle flag */ | |
2df3850c JM |
1101 | if (monitor_debug_p || remote_debug |
1102 | || current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
c906108c SS |
1103 | { |
1104 | int i; | |
1105 | ||
1106 | for (i = 0; i < resp_len - 1; i++) | |
1107 | if (buf[i] == 0x0f) | |
1108 | putchar_unfiltered (buf[++i]); | |
1109 | } | |
1110 | } | |
1111 | ||
1112 | ||
1113 | ||
1114 | /* Wait until the remote machine stops, then return, storing status in | |
1115 | status just as `wait' would. */ | |
1116 | ||
1117 | static int | |
1118 | monitor_wait (pid, status) | |
1119 | int pid; | |
1120 | struct target_waitstatus *status; | |
1121 | { | |
1122 | int old_timeout = timeout; | |
d4f3574e | 1123 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1124 | int resp_len; |
1125 | struct cleanup *old_chain; | |
1126 | ||
1127 | status->kind = TARGET_WAITKIND_EXITED; | |
1128 | status->value.integer = 0; | |
1129 | ||
1130 | old_chain = make_cleanup (monitor_wait_cleanup, &old_timeout); | |
2df3850c | 1131 | monitor_debug ("MON wait\n"); |
c906108c | 1132 | |
7a292a7a | 1133 | #if 0 |
c5aa993b JM |
1134 | /* This is somthing other than a maintenance command */ |
1135 | in_monitor_wait = 1; | |
c906108c SS |
1136 | timeout = watchdog > 0 ? watchdog : -1; |
1137 | #else | |
2df3850c | 1138 | timeout = -1; /* Don't time out -- user program is running. */ |
c906108c SS |
1139 | #endif |
1140 | ||
1141 | ofunc = (void (*)()) signal (SIGINT, monitor_interrupt); | |
1142 | ||
1143 | if (current_monitor->wait_filter) | |
c5aa993b JM |
1144 | (*current_monitor->wait_filter) (buf, sizeof (buf), &resp_len, status); |
1145 | else | |
1146 | monitor_wait_filter (buf, sizeof (buf), &resp_len, status); | |
1147 | ||
1148 | #if 0 /* Transferred to monitor wait filter */ | |
c906108c SS |
1149 | do |
1150 | { | |
1151 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1152 | ||
1153 | if (resp_len <= 0) | |
1154 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1155 | } | |
1156 | while (resp_len < 0); | |
1157 | ||
1158 | /* Print any output characters that were preceded by ^O. */ | |
1159 | /* FIXME - This would be great as a user settabgle flag */ | |
2df3850c JM |
1160 | if (monitor_debug_p || remote_debug |
1161 | || current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
c906108c SS |
1162 | { |
1163 | int i; | |
1164 | ||
1165 | for (i = 0; i < resp_len - 1; i++) | |
1166 | if (buf[i] == 0x0f) | |
1167 | putchar_unfiltered (buf[++i]); | |
1168 | } | |
c5aa993b | 1169 | #endif |
c906108c SS |
1170 | |
1171 | signal (SIGINT, ofunc); | |
1172 | ||
1173 | timeout = old_timeout; | |
1174 | #if 0 | |
1175 | if (dump_reg_flag && current_monitor->dump_registers) | |
1176 | { | |
1177 | dump_reg_flag = 0; | |
1178 | monitor_printf (current_monitor->dump_registers); | |
1179 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1180 | } | |
1181 | ||
1182 | if (current_monitor->register_pattern) | |
1183 | parse_register_dump (buf, resp_len); | |
1184 | #else | |
2df3850c | 1185 | monitor_debug ("Wait fetching registers after stop\n"); |
c5aa993b JM |
1186 | monitor_dump_regs (); |
1187 | #endif | |
c906108c SS |
1188 | |
1189 | status->kind = TARGET_WAITKIND_STOPPED; | |
1190 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1191 | ||
1192 | discard_cleanups (old_chain); | |
1193 | ||
1194 | in_monitor_wait = 0; | |
1195 | ||
1196 | return inferior_pid; | |
1197 | } | |
1198 | ||
1199 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns | |
1200 | errno value. */ | |
1201 | ||
1202 | static void | |
1203 | monitor_fetch_register (regno) | |
1204 | int regno; | |
1205 | { | |
1206 | char *name; | |
86110418 MS |
1207 | char *zerobuf; |
1208 | char *regbuf; | |
c906108c SS |
1209 | int i; |
1210 | ||
86110418 MS |
1211 | regbuf = alloca (MAX_REGISTER_RAW_SIZE * 2 + 1); |
1212 | zerobuf = alloca (MAX_REGISTER_RAW_SIZE); | |
1213 | memset (zerobuf, 0, MAX_REGISTER_RAW_SIZE); | |
1214 | ||
c906108c | 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); | |
5683e87a AC |
1378 | monitor_debug ("MON storeg %d %s\n", regno, |
1379 | phex (val, REGISTER_RAW_SIZE (regno))); | |
c906108c SS |
1380 | |
1381 | /* send the register deposit command */ | |
1382 | ||
2df3850c | 1383 | if (current_monitor->flags & MO_REGISTER_VALUE_FIRST) |
c906108c SS |
1384 | monitor_printf (current_monitor->setreg.cmd, val, name); |
1385 | else if (current_monitor->flags & MO_SETREG_INTERACTIVE) | |
1386 | monitor_printf (current_monitor->setreg.cmd, name); | |
1387 | else | |
1388 | monitor_printf (current_monitor->setreg.cmd, name, val); | |
1389 | ||
1390 | if (current_monitor->setreg.term) | |
c5aa993b | 1391 | { |
2df3850c JM |
1392 | monitor_debug ("EXP setreg.term\n"); |
1393 | monitor_expect (current_monitor->setreg.term, NULL, 0); | |
c906108c | 1394 | if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
2df3850c | 1395 | monitor_printf ("%s\r", paddr_nz (val)); |
c906108c SS |
1396 | monitor_expect_prompt (NULL, 0); |
1397 | } | |
1398 | else | |
1399 | monitor_expect_prompt (NULL, 0); | |
c5aa993b JM |
1400 | if (current_monitor->setreg.term_cmd) /* Mode exit required */ |
1401 | { | |
2df3850c | 1402 | monitor_debug ("EXP setreg_termcmd\n"); |
c5aa993b JM |
1403 | monitor_printf ("%s", current_monitor->setreg.term_cmd); |
1404 | monitor_expect_prompt (NULL, 0); | |
c906108c | 1405 | } |
c5aa993b | 1406 | } /* monitor_store_register */ |
c906108c SS |
1407 | |
1408 | /* Store the remote registers. */ | |
1409 | ||
1410 | static void | |
1411 | monitor_store_registers (regno) | |
1412 | int regno; | |
1413 | { | |
1414 | if (regno >= 0) | |
1415 | { | |
1416 | monitor_store_register (regno); | |
1417 | return; | |
1418 | } | |
1419 | ||
1420 | for (regno = 0; regno < NUM_REGS; regno++) | |
1421 | monitor_store_register (regno); | |
1422 | } | |
1423 | ||
1424 | /* Get ready to modify the registers array. On machines which store | |
1425 | individual registers, this doesn't need to do anything. On machines | |
1426 | which store all the registers in one fell swoop, this makes sure | |
1427 | that registers contains all the registers from the program being | |
1428 | debugged. */ | |
1429 | ||
1430 | static void | |
1431 | monitor_prepare_to_store () | |
1432 | { | |
1433 | /* Do nothing, since we can store individual regs */ | |
1434 | } | |
1435 | ||
1436 | static void | |
1437 | monitor_files_info (ops) | |
1438 | struct target_ops *ops; | |
1439 | { | |
1440 | printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baud_rate); | |
1441 | } | |
1442 | ||
1443 | static int | |
1444 | monitor_write_memory (memaddr, myaddr, len) | |
1445 | CORE_ADDR memaddr; | |
1446 | char *myaddr; | |
1447 | int len; | |
1448 | { | |
c5aa993b | 1449 | unsigned int val, hostval; |
c906108c SS |
1450 | char *cmd; |
1451 | int i; | |
1452 | ||
2df3850c | 1453 | monitor_debug ("MON write %d %s\n", len, paddr (memaddr)); |
c906108c | 1454 | |
2df3850c | 1455 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
c906108c SS |
1456 | memaddr = ADDR_BITS_REMOVE (memaddr); |
1457 | ||
1458 | /* Use memory fill command for leading 0 bytes. */ | |
1459 | ||
1460 | if (current_monitor->fill) | |
1461 | { | |
1462 | for (i = 0; i < len; i++) | |
1463 | if (myaddr[i] != 0) | |
1464 | break; | |
1465 | ||
1466 | if (i > 4) /* More than 4 zeros is worth doing */ | |
1467 | { | |
2df3850c JM |
1468 | monitor_debug ("MON FILL %d\n", i); |
1469 | if (current_monitor->flags & MO_FILL_USES_ADDR) | |
c5aa993b JM |
1470 | monitor_printf (current_monitor->fill, memaddr, (memaddr + i) - 1, 0); |
1471 | else | |
1472 | monitor_printf (current_monitor->fill, memaddr, i, 0); | |
c906108c SS |
1473 | |
1474 | monitor_expect_prompt (NULL, 0); | |
1475 | ||
1476 | return i; | |
1477 | } | |
1478 | } | |
1479 | ||
1480 | #if 0 | |
1481 | /* Can't actually use long longs if VAL is an int (nice idea, though). */ | |
1482 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->setmem.cmdll) | |
1483 | { | |
1484 | len = 8; | |
1485 | cmd = current_monitor->setmem.cmdll; | |
1486 | } | |
1487 | else | |
1488 | #endif | |
1489 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->setmem.cmdl) | |
1490 | { | |
1491 | len = 4; | |
1492 | cmd = current_monitor->setmem.cmdl; | |
1493 | } | |
1494 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->setmem.cmdw) | |
1495 | { | |
1496 | len = 2; | |
1497 | cmd = current_monitor->setmem.cmdw; | |
1498 | } | |
1499 | else | |
1500 | { | |
1501 | len = 1; | |
1502 | cmd = current_monitor->setmem.cmdb; | |
1503 | } | |
1504 | ||
1505 | val = extract_unsigned_integer (myaddr, len); | |
c5aa993b | 1506 | |
c906108c | 1507 | if (len == 4) |
c5aa993b JM |
1508 | { |
1509 | hostval = *(unsigned int *) myaddr; | |
2df3850c | 1510 | monitor_debug ("Hostval(%08x) val(%08x)\n", hostval, val); |
c906108c SS |
1511 | } |
1512 | ||
1513 | ||
1514 | if (current_monitor->flags & MO_NO_ECHO_ON_SETMEM) | |
1515 | monitor_printf_noecho (cmd, memaddr, val); | |
1516 | else if (current_monitor->flags & MO_SETMEM_INTERACTIVE) | |
1517 | { | |
1518 | ||
1519 | monitor_printf_noecho (cmd, memaddr); | |
1520 | ||
1521 | if (current_monitor->setmem.term) | |
c5aa993b | 1522 | { |
2df3850c | 1523 | monitor_debug ("EXP setmem.term"); |
c906108c SS |
1524 | monitor_expect (current_monitor->setmem.term, NULL, 0); |
1525 | monitor_printf ("%x\r", val); | |
1526 | } | |
1527 | if (current_monitor->setmem.term_cmd) | |
c5aa993b JM |
1528 | { /* Emit this to get out of the memory editing state */ |
1529 | monitor_printf ("%s", current_monitor->setmem.term_cmd); | |
c906108c SS |
1530 | /* Drop through to expecting a prompt */ |
1531 | } | |
1532 | } | |
1533 | else | |
1534 | monitor_printf (cmd, memaddr, val); | |
1535 | ||
1536 | monitor_expect_prompt (NULL, 0); | |
1537 | ||
1538 | return len; | |
1539 | } | |
1540 | ||
1541 | ||
1542 | static int | |
c5aa993b JM |
1543 | monitor_write_even_block (memaddr, myaddr, len) |
1544 | CORE_ADDR memaddr; | |
1545 | char *myaddr; | |
1546 | int len; | |
c906108c | 1547 | { |
c5aa993b JM |
1548 | unsigned int val; |
1549 | int written = 0;; | |
c906108c | 1550 | /* Enter the sub mode */ |
c5aa993b JM |
1551 | monitor_printf (current_monitor->setmem.cmdl, memaddr); |
1552 | monitor_expect_prompt (NULL, 0); | |
1553 | ||
c906108c SS |
1554 | while (len) |
1555 | { | |
c5aa993b JM |
1556 | val = extract_unsigned_integer (myaddr, 4); /* REALLY */ |
1557 | monitor_printf ("%x\r", val); | |
1558 | myaddr += 4; | |
1559 | memaddr += 4; | |
1560 | written += 4; | |
2df3850c | 1561 | monitor_debug (" @ %s\n", paddr (memaddr)); |
c906108c | 1562 | /* If we wanted to, here we could validate the address */ |
2df3850c | 1563 | monitor_expect_prompt (NULL, 0); |
c906108c SS |
1564 | } |
1565 | /* Now exit the sub mode */ | |
1566 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1567 | monitor_expect_prompt (NULL, 0); |
1568 | return written; | |
c906108c SS |
1569 | } |
1570 | ||
1571 | ||
c5aa993b JM |
1572 | static int |
1573 | monitor_write_memory_bytes (memaddr, myaddr, len) | |
1574 | CORE_ADDR memaddr; | |
1575 | char *myaddr; | |
1576 | int len; | |
c906108c | 1577 | { |
c5aa993b JM |
1578 | unsigned char val; |
1579 | int written = 0; | |
1580 | if (len == 0) | |
1581 | return 0; | |
c906108c | 1582 | /* Enter the sub mode */ |
c5aa993b JM |
1583 | monitor_printf (current_monitor->setmem.cmdb, memaddr); |
1584 | monitor_expect_prompt (NULL, 0); | |
c906108c SS |
1585 | while (len) |
1586 | { | |
c5aa993b JM |
1587 | val = *myaddr; |
1588 | monitor_printf ("%x\r", val); | |
1589 | myaddr++; | |
1590 | memaddr++; | |
1591 | written++; | |
c906108c | 1592 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1593 | monitor_expect_prompt (NULL, 0); |
1594 | len--; | |
c906108c SS |
1595 | } |
1596 | /* Now exit the sub mode */ | |
1597 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1598 | monitor_expect_prompt (NULL, 0); |
1599 | return written; | |
c906108c SS |
1600 | } |
1601 | ||
1602 | ||
1603 | static void | |
c5aa993b | 1604 | longlongendswap (unsigned char *a) |
c906108c | 1605 | { |
c5aa993b JM |
1606 | int i, j; |
1607 | unsigned char x; | |
1608 | i = 0; | |
1609 | j = 7; | |
c906108c | 1610 | while (i < 4) |
c5aa993b JM |
1611 | { |
1612 | x = *(a + i); | |
1613 | *(a + i) = *(a + j); | |
1614 | *(a + j) = x; | |
1615 | i++, j--; | |
c906108c SS |
1616 | } |
1617 | } | |
1618 | /* Format 32 chars of long long value, advance the pointer */ | |
c5aa993b JM |
1619 | static char *hexlate = "0123456789abcdef"; |
1620 | static char * | |
1621 | longlong_hexchars (unsigned long long value, | |
1622 | char *outbuff) | |
c906108c | 1623 | { |
c5aa993b JM |
1624 | if (value == 0) |
1625 | { | |
1626 | *outbuff++ = '0'; | |
1627 | return outbuff; | |
1628 | } | |
c906108c | 1629 | else |
c5aa993b JM |
1630 | { |
1631 | static unsigned char disbuf[8]; /* disassembly buffer */ | |
1632 | unsigned char *scan, *limit; /* loop controls */ | |
1633 | unsigned char c, nib; | |
1634 | int leadzero = 1; | |
1635 | scan = disbuf; | |
1636 | limit = scan + 8; | |
1637 | { | |
1638 | unsigned long long *dp; | |
1639 | dp = (unsigned long long *) scan; | |
1640 | *dp = value; | |
c906108c | 1641 | } |
c5aa993b | 1642 | longlongendswap (disbuf); /* FIXME: ONly on big endian hosts */ |
c906108c | 1643 | while (scan < limit) |
7a292a7a | 1644 | { |
c5aa993b | 1645 | c = *scan++; /* a byte of our long long value */ |
c906108c | 1646 | if (leadzero) |
7a292a7a SS |
1647 | { |
1648 | if (c == 0) | |
1649 | continue; | |
1650 | else | |
c5aa993b | 1651 | leadzero = 0; /* henceforth we print even zeroes */ |
7a292a7a | 1652 | } |
c5aa993b | 1653 | nib = c >> 4; /* high nibble bits */ |
7a292a7a | 1654 | *outbuff++ = hexlate[nib]; |
c5aa993b | 1655 | nib = c & 0x0f; /* low nibble bits */ |
7a292a7a | 1656 | *outbuff++ = hexlate[nib]; |
c906108c | 1657 | } |
c5aa993b | 1658 | return outbuff; |
c906108c | 1659 | } |
c5aa993b | 1660 | } /* longlong_hexchars */ |
c906108c SS |
1661 | |
1662 | ||
1663 | ||
1664 | /* I am only going to call this when writing virtual byte streams. | |
1665 | Which possably entails endian conversions | |
c5aa993b JM |
1666 | */ |
1667 | static int | |
1668 | monitor_write_memory_longlongs (memaddr, myaddr, len) | |
1669 | CORE_ADDR memaddr; | |
1670 | char *myaddr; | |
1671 | int len; | |
c906108c | 1672 | { |
c5aa993b JM |
1673 | static char hexstage[20]; /* At least 16 digits required, plus null */ |
1674 | char *endstring; | |
1675 | long long *llptr; | |
1676 | long long value; | |
1677 | int written = 0; | |
1678 | llptr = (unsigned long long *) myaddr; | |
1679 | if (len == 0) | |
1680 | return 0; | |
1681 | monitor_printf (current_monitor->setmem.cmdll, memaddr); | |
1682 | monitor_expect_prompt (NULL, 0); | |
1683 | while (len >= 8) | |
1684 | { | |
1685 | value = *llptr; | |
1686 | endstring = longlong_hexchars (*llptr, hexstage); | |
1687 | *endstring = '\0'; /* NUll terminate for printf */ | |
1688 | monitor_printf ("%s\r", hexstage); | |
1689 | llptr++; | |
1690 | memaddr += 8; | |
1691 | written += 8; | |
c906108c | 1692 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1693 | monitor_expect_prompt (NULL, 0); |
1694 | len -= 8; | |
c906108c SS |
1695 | } |
1696 | /* Now exit the sub mode */ | |
1697 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1698 | monitor_expect_prompt (NULL, 0); |
1699 | return written; | |
1700 | } /* */ | |
c906108c SS |
1701 | |
1702 | ||
1703 | ||
1704 | /* ----- MONITOR_WRITE_MEMORY_BLOCK ---------------------------- */ | |
1705 | /* This is for the large blocks of memory which may occur in downloading. | |
1706 | And for monitors which use interactive entry, | |
1707 | And for monitors which do not have other downloading methods. | |
1708 | Without this, we will end up calling monitor_write_memory many times | |
1709 | and do the entry and exit of the sub mode many times | |
1710 | This currently assumes... | |
c5aa993b JM |
1711 | MO_SETMEM_INTERACTIVE |
1712 | ! MO_NO_ECHO_ON_SETMEM | |
1713 | To use this, the you have to patch the monitor_cmds block with | |
1714 | this function. Otherwise, its not tuned up for use by all | |
1715 | monitor variations. | |
1716 | */ | |
c906108c | 1717 | |
c5aa993b JM |
1718 | static int |
1719 | monitor_write_memory_block (memaddr, myaddr, len) | |
1720 | CORE_ADDR memaddr; | |
1721 | char *myaddr; | |
1722 | int len; | |
c906108c | 1723 | { |
c5aa993b JM |
1724 | int written; |
1725 | written = 0; | |
c906108c | 1726 | /* FIXME: This would be a good place to put the zero test */ |
c5aa993b | 1727 | #if 1 |
c906108c | 1728 | if ((len > 8) && (((len & 0x07)) == 0) && current_monitor->setmem.cmdll) |
c5aa993b JM |
1729 | { |
1730 | return monitor_write_memory_longlongs (memaddr, myaddr, len); | |
1731 | } | |
1732 | #endif | |
1733 | #if 0 | |
c906108c SS |
1734 | if (len > 4) |
1735 | { | |
c5aa993b JM |
1736 | int sublen; |
1737 | written = monitor_write_even_block (memaddr, myaddr, len); | |
c906108c | 1738 | /* Adjust calling parameters by written amount */ |
c5aa993b JM |
1739 | memaddr += written; |
1740 | myaddr += written; | |
1741 | len -= written; | |
c906108c SS |
1742 | } |
1743 | #endif | |
c5aa993b JM |
1744 | written = monitor_write_memory_bytes (memaddr, myaddr, len); |
1745 | return written; | |
c906108c SS |
1746 | } |
1747 | ||
1748 | /* This is an alternate form of monitor_read_memory which is used for monitors | |
1749 | which can only read a single byte/word/etc. at a time. */ | |
1750 | ||
1751 | static int | |
1752 | monitor_read_memory_single (memaddr, myaddr, len) | |
1753 | CORE_ADDR memaddr; | |
1754 | char *myaddr; | |
1755 | int len; | |
1756 | { | |
1757 | unsigned int val; | |
c5aa993b | 1758 | char membuf[sizeof (int) * 2 + 1]; |
c906108c SS |
1759 | char *p; |
1760 | char *cmd; | |
1761 | int i; | |
1762 | ||
2df3850c | 1763 | monitor_debug ("MON read single\n"); |
c906108c SS |
1764 | #if 0 |
1765 | /* Can't actually use long longs (nice idea, though). In fact, the | |
1766 | call to strtoul below will fail if it tries to convert a value | |
1767 | that's too big to fit in a long. */ | |
1768 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->getmem.cmdll) | |
1769 | { | |
1770 | len = 8; | |
1771 | cmd = current_monitor->getmem.cmdll; | |
1772 | } | |
1773 | else | |
1774 | #endif | |
1775 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->getmem.cmdl) | |
1776 | { | |
1777 | len = 4; | |
1778 | cmd = current_monitor->getmem.cmdl; | |
1779 | } | |
1780 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->getmem.cmdw) | |
1781 | { | |
1782 | len = 2; | |
1783 | cmd = current_monitor->getmem.cmdw; | |
1784 | } | |
1785 | else | |
1786 | { | |
1787 | len = 1; | |
1788 | cmd = current_monitor->getmem.cmdb; | |
1789 | } | |
1790 | ||
1791 | /* Send the examine command. */ | |
1792 | ||
1793 | monitor_printf (cmd, memaddr); | |
1794 | ||
1795 | /* If RESP_DELIM is specified, we search for that as a leading | |
1796 | delimiter for the memory value. Otherwise, we just start | |
1797 | searching from the start of the buf. */ | |
1798 | ||
1799 | if (current_monitor->getmem.resp_delim) | |
c5aa993b | 1800 | { |
2df3850c | 1801 | monitor_debug ("EXP getmem.resp_delim\n"); |
c906108c SS |
1802 | monitor_expect_regexp (&getmem_resp_delim_pattern, NULL, 0); |
1803 | } | |
1804 | ||
1805 | /* Now, read the appropriate number of hex digits for this loc, | |
1806 | skipping spaces. */ | |
1807 | ||
1808 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */ | |
c5aa993b | 1809 | if (current_monitor->flags & MO_HEX_PREFIX) |
c906108c SS |
1810 | { |
1811 | int c; | |
1812 | ||
1813 | c = readchar (timeout); | |
1814 | while (c == ' ') | |
1815 | c = readchar (timeout); | |
1816 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1817 | ; | |
1818 | else | |
2df3850c JM |
1819 | monitor_error ("monitor_read_memory_single", |
1820 | "bad response from monitor", | |
c906108c SS |
1821 | memaddr, i, membuf, c); |
1822 | } | |
1823 | for (i = 0; i < len * 2; i++) | |
1824 | { | |
1825 | int c; | |
1826 | ||
1827 | while (1) | |
1828 | { | |
1829 | c = readchar (timeout); | |
1830 | if (isxdigit (c)) | |
1831 | break; | |
1832 | if (c == ' ') | |
1833 | continue; | |
1834 | ||
2df3850c JM |
1835 | monitor_error ("monitor_read_memory_single", |
1836 | "bad response from monitor", | |
c906108c SS |
1837 | memaddr, i, membuf, c); |
1838 | } | |
1839 | ||
1840 | membuf[i] = c; | |
1841 | } | |
1842 | ||
1843 | membuf[i] = '\000'; /* terminate the number */ | |
1844 | ||
1845 | /* If TERM is present, we wait for that to show up. Also, (if TERM is | |
1846 | present), we will send TERM_CMD if that is present. In any case, we collect | |
1847 | all of the output into buf, and then wait for the normal prompt. */ | |
1848 | ||
1849 | if (current_monitor->getmem.term) | |
1850 | { | |
c5aa993b | 1851 | monitor_expect (current_monitor->getmem.term, NULL, 0); /* get response */ |
c906108c SS |
1852 | |
1853 | if (current_monitor->getmem.term_cmd) | |
1854 | { | |
1855 | monitor_printf (current_monitor->getmem.term_cmd); | |
1856 | monitor_expect_prompt (NULL, 0); | |
1857 | } | |
1858 | } | |
1859 | else | |
c5aa993b | 1860 | monitor_expect_prompt (NULL, 0); /* get response */ |
c906108c SS |
1861 | |
1862 | p = membuf; | |
1863 | val = strtoul (membuf, &p, 16); | |
1864 | ||
1865 | if (val == 0 && membuf == p) | |
2df3850c JM |
1866 | monitor_error ("monitor_read_memory_single", |
1867 | "bad value from monitor", | |
c906108c SS |
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 | { | |
2df3850c | 1896 | monitor_debug ("Zero length call to monitor_read_memory\n"); |
c906108c SS |
1897 | return 0; |
1898 | } | |
1899 | ||
2df3850c JM |
1900 | monitor_debug ("MON read block ta(%s) ha(%lx) %d\n", |
1901 | paddr_nz (memaddr), (long) myaddr, len); | |
c906108c SS |
1902 | |
1903 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1904 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
1905 | ||
1906 | if (current_monitor->flags & MO_GETMEM_READ_SINGLE) | |
1907 | return monitor_read_memory_single (memaddr, myaddr, len); | |
1908 | ||
1909 | len = min (len, 16); | |
1910 | ||
1911 | /* Some dumpers align the first data with the preceeding 16 | |
1912 | byte boundary. Some print blanks and start at the | |
1913 | requested boundary. EXACT_DUMPADDR | |
c5aa993b | 1914 | */ |
c906108c SS |
1915 | |
1916 | dumpaddr = (current_monitor->flags & MO_EXACT_DUMPADDR) | |
c5aa993b | 1917 | ? memaddr : memaddr & ~0x0f; |
c906108c SS |
1918 | |
1919 | /* See if xfer would cross a 16 byte boundary. If so, clip it. */ | |
1920 | if (((memaddr ^ (memaddr + len - 1)) & ~0xf) != 0) | |
1921 | len = ((memaddr + len) & ~0xf) - memaddr; | |
1922 | ||
1923 | /* send the memory examine command */ | |
1924 | ||
1925 | if (current_monitor->flags & MO_GETMEM_NEEDS_RANGE) | |
7a292a7a | 1926 | monitor_printf (current_monitor->getmem.cmdb, memaddr, memaddr + len); |
c906108c SS |
1927 | else if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1928 | monitor_printf (current_monitor->getmem.cmdb, dumpaddr); | |
1929 | else | |
1930 | monitor_printf (current_monitor->getmem.cmdb, memaddr, len); | |
1931 | ||
1932 | /* If TERM is present, we wait for that to show up. Also, (if TERM | |
1933 | is present), we will send TERM_CMD if that is present. In any | |
1934 | case, we collect all of the output into buf, and then wait for | |
1935 | the normal prompt. */ | |
1936 | ||
1937 | if (current_monitor->getmem.term) | |
1938 | { | |
c5aa993b | 1939 | resp_len = monitor_expect (current_monitor->getmem.term, buf, sizeof buf); /* get response */ |
c906108c SS |
1940 | |
1941 | if (resp_len <= 0) | |
2df3850c JM |
1942 | monitor_error ("monitor_read_memory", |
1943 | "excessive response from monitor", | |
c906108c SS |
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; | |
2df3850c | 1966 | monitor_debug ("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) | |
2df3850c JM |
1974 | monitor_error ("monitor_read_memory", |
1975 | "bad response from monitor", | |
c906108c SS |
1976 | memaddr, resp_len, buf, 0); |
1977 | ||
1978 | p += resp_strings.end[0]; | |
1979 | #if 0 | |
1980 | p = strstr (p, current_monitor->getmem.resp_delim); | |
1981 | if (!p) | |
2df3850c JM |
1982 | monitor_error ("monitor_read_memory", |
1983 | "bad response from monitor", | |
c906108c SS |
1984 | memaddr, resp_len, buf, 0); |
1985 | p += strlen (current_monitor->getmem.resp_delim); | |
1986 | #endif | |
1987 | } | |
2df3850c | 1988 | monitor_debug ("MON scanning %d ,%lx '%s'\n", len, (long) p, p); |
c906108c SS |
1989 | if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1990 | { | |
c5aa993b JM |
1991 | char c; |
1992 | int fetched = 0; | |
c906108c | 1993 | i = len; |
c5aa993b | 1994 | c = *p; |
c906108c | 1995 | |
c5aa993b JM |
1996 | |
1997 | while (!(c == '\000' || c == '\n' || c == '\r') && i > 0) | |
1998 | { | |
1999 | if (isxdigit (c)) | |
2000 | { | |
2001 | if ((dumpaddr >= memaddr) && (i > 0)) | |
2002 | { | |
2003 | val = fromhex (c) * 16 + fromhex (*(p + 1)); | |
c906108c | 2004 | *myaddr++ = val; |
2df3850c JM |
2005 | if (monitor_debug_p || remote_debug) |
2006 | fprintf_unfiltered (gdb_stdlog, "[%02x]", val); | |
c906108c | 2007 | --i; |
c5aa993b | 2008 | fetched++; |
c906108c SS |
2009 | } |
2010 | ++dumpaddr; | |
2011 | ++p; | |
2012 | } | |
c5aa993b JM |
2013 | ++p; /* skip a blank or other non hex char */ |
2014 | c = *p; | |
c906108c | 2015 | } |
c5aa993b JM |
2016 | if (fetched == 0) |
2017 | error ("Failed to read via monitor"); | |
2df3850c JM |
2018 | if (monitor_debug_p || remote_debug) |
2019 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c5aa993b | 2020 | return fetched; /* Return the number of bytes actually read */ |
c906108c | 2021 | } |
2df3850c | 2022 | monitor_debug ("MON scanning bytes\n"); |
c906108c SS |
2023 | |
2024 | for (i = len; i > 0; i--) | |
2025 | { | |
2026 | /* Skip non-hex chars, but bomb on end of string and newlines */ | |
2027 | ||
2028 | while (1) | |
2029 | { | |
2030 | if (isxdigit (*p)) | |
2031 | break; | |
2032 | ||
2033 | if (*p == '\000' || *p == '\n' || *p == '\r') | |
2df3850c JM |
2034 | monitor_error ("monitor_read_memory", |
2035 | "badly terminated response from monitor", | |
c906108c SS |
2036 | memaddr, resp_len, buf, 0); |
2037 | p++; | |
2038 | } | |
2039 | ||
2040 | val = strtoul (p, &p1, 16); | |
2041 | ||
2042 | if (val == 0 && p == p1) | |
2df3850c JM |
2043 | monitor_error ("monitor_read_memory", |
2044 | "bad value from monitor", | |
c906108c SS |
2045 | memaddr, resp_len, buf, 0); |
2046 | ||
2047 | *myaddr++ = val; | |
2048 | ||
2049 | if (i == 1) | |
2050 | break; | |
2051 | ||
2052 | p = p1; | |
2053 | } | |
2054 | ||
2055 | return len; | |
2056 | } | |
2057 | ||
2058 | static int | |
2059 | monitor_xfer_memory (memaddr, myaddr, len, write, target) | |
2060 | CORE_ADDR memaddr; | |
2061 | char *myaddr; | |
2062 | int len; | |
2063 | int write; | |
c5aa993b | 2064 | struct target_ops *target; /* ignored */ |
c906108c SS |
2065 | { |
2066 | return dcache_xfer_memory (remote_dcache, memaddr, myaddr, len, write); | |
2067 | } | |
2068 | ||
2069 | static void | |
2070 | monitor_kill () | |
2071 | { | |
c5aa993b | 2072 | return; /* ignore attempts to kill target system */ |
c906108c SS |
2073 | } |
2074 | ||
2075 | /* All we actually do is set the PC to the start address of exec_bfd, and start | |
2076 | the program at that point. */ | |
2077 | ||
2078 | static void | |
2079 | monitor_create_inferior (exec_file, args, env) | |
2080 | char *exec_file; | |
2081 | char *args; | |
2082 | char **env; | |
2083 | { | |
2084 | if (args && (*args != '\000')) | |
2085 | error ("Args are not supported by the monitor."); | |
2086 | ||
2087 | first_time = 1; | |
2088 | clear_proceed_status (); | |
2089 | proceed (bfd_get_start_address (exec_bfd), TARGET_SIGNAL_0, 0); | |
2090 | } | |
2091 | ||
2092 | /* Clean up when a program exits. | |
2093 | The program actually lives on in the remote processor's RAM, and may be | |
2094 | run again without a download. Don't leave it full of breakpoint | |
2095 | instructions. */ | |
2096 | ||
2097 | static void | |
2098 | monitor_mourn_inferior () | |
2099 | { | |
2100 | unpush_target (targ_ops); | |
2101 | generic_mourn_inferior (); /* Do all the proper things now */ | |
2102 | } | |
2103 | ||
c906108c SS |
2104 | /* Tell the monitor to add a breakpoint. */ |
2105 | ||
2106 | static int | |
2107 | monitor_insert_breakpoint (addr, shadow) | |
2108 | CORE_ADDR addr; | |
2109 | char *shadow; | |
2110 | { | |
2111 | int i; | |
2112 | unsigned char *bp; | |
2113 | int bplen; | |
2114 | ||
2df3850c JM |
2115 | monitor_debug ("MON inst bkpt %s\n", paddr (addr)); |
2116 | if (current_monitor->set_break == NULL) | |
c906108c SS |
2117 | error ("No set_break defined for this monitor"); |
2118 | ||
2119 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2120 | addr = ADDR_BITS_REMOVE (addr); | |
2121 | ||
2122 | /* Determine appropriate breakpoint size for this address. */ | |
2123 | bp = memory_breakpoint_from_pc (&addr, &bplen); | |
2124 | ||
9e086581 | 2125 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2126 | { |
2127 | if (breakaddr[i] == 0) | |
2128 | { | |
2129 | breakaddr[i] = addr; | |
2130 | monitor_read_memory (addr, shadow, bplen); | |
2131 | monitor_printf (current_monitor->set_break, addr); | |
2132 | monitor_expect_prompt (NULL, 0); | |
2133 | return 0; | |
2134 | } | |
2135 | } | |
2136 | ||
9e086581 | 2137 | error ("Too many breakpoints (> %d) for monitor.", current_monitor->num_breakpoints); |
c906108c SS |
2138 | } |
2139 | ||
2140 | /* Tell the monitor to remove a breakpoint. */ | |
2141 | ||
2142 | static int | |
2143 | monitor_remove_breakpoint (addr, shadow) | |
2144 | CORE_ADDR addr; | |
2145 | char *shadow; | |
2146 | { | |
2147 | int i; | |
2148 | ||
2df3850c JM |
2149 | monitor_debug ("MON rmbkpt %s\n", paddr (addr)); |
2150 | if (current_monitor->clr_break == NULL) | |
c906108c SS |
2151 | error ("No clr_break defined for this monitor"); |
2152 | ||
2153 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2154 | addr = ADDR_BITS_REMOVE (addr); | |
2155 | ||
9e086581 | 2156 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2157 | { |
2158 | if (breakaddr[i] == addr) | |
2159 | { | |
2160 | breakaddr[i] = 0; | |
2161 | /* some monitors remove breakpoints based on the address */ | |
2162 | if (current_monitor->flags & MO_CLR_BREAK_USES_ADDR) | |
2163 | monitor_printf (current_monitor->clr_break, addr); | |
2164 | else if (current_monitor->flags & MO_CLR_BREAK_1_BASED) | |
2165 | monitor_printf (current_monitor->clr_break, i + 1); | |
2166 | else | |
2167 | monitor_printf (current_monitor->clr_break, i); | |
2168 | monitor_expect_prompt (NULL, 0); | |
2169 | return 0; | |
2170 | } | |
2171 | } | |
2172 | fprintf_unfiltered (gdb_stderr, | |
2df3850c JM |
2173 | "Can't find breakpoint associated with 0x%s\n", |
2174 | paddr_nz (addr)); | |
c906108c SS |
2175 | return 1; |
2176 | } | |
2177 | ||
2178 | /* monitor_wait_srec_ack -- wait for the target to send an acknowledgement for | |
2179 | an S-record. Return non-zero if the ACK is received properly. */ | |
2180 | ||
2181 | static int | |
2182 | monitor_wait_srec_ack () | |
2183 | { | |
d4f3574e | 2184 | int ch; |
c906108c SS |
2185 | |
2186 | if (current_monitor->flags & MO_SREC_ACK_PLUS) | |
2187 | { | |
2188 | return (readchar (timeout) == '+'); | |
2189 | } | |
2190 | else if (current_monitor->flags & MO_SREC_ACK_ROTATE) | |
2191 | { | |
2192 | /* Eat two backspaces, a "rotating" char (|/-\), and a space. */ | |
2193 | if ((ch = readchar (1)) < 0) | |
2194 | return 0; | |
2195 | if ((ch = readchar (1)) < 0) | |
2196 | return 0; | |
2197 | if ((ch = readchar (1)) < 0) | |
2198 | return 0; | |
2199 | if ((ch = readchar (1)) < 0) | |
2200 | return 0; | |
2201 | } | |
2202 | return 1; | |
2203 | } | |
2204 | ||
2205 | /* monitor_load -- download a file. */ | |
2206 | ||
2207 | static void | |
2208 | monitor_load (file, from_tty) | |
c5aa993b JM |
2209 | char *file; |
2210 | int from_tty; | |
c906108c SS |
2211 | { |
2212 | dcache_flush (remote_dcache); | |
2df3850c | 2213 | monitor_debug ("MON load\n"); |
c906108c | 2214 | |
2df3850c | 2215 | if (current_monitor->load_routine) |
c906108c SS |
2216 | current_monitor->load_routine (monitor_desc, file, hashmark); |
2217 | else | |
2218 | { /* The default is ascii S-records */ | |
2219 | int n; | |
2220 | unsigned long load_offset; | |
2221 | char buf[128]; | |
2222 | ||
2223 | /* enable user to specify address for downloading as 2nd arg to load */ | |
2224 | n = sscanf (file, "%s 0x%lx", buf, &load_offset); | |
2225 | if (n > 1) | |
2226 | file = buf; | |
2227 | else | |
2228 | load_offset = 0; | |
2229 | ||
2230 | monitor_printf (current_monitor->load); | |
2231 | if (current_monitor->loadresp) | |
2232 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
2233 | ||
2234 | load_srec (monitor_desc, file, (bfd_vma) load_offset, | |
2235 | 32, SREC_ALL, hashmark, | |
2236 | current_monitor->flags & MO_SREC_ACK ? | |
c5aa993b | 2237 | monitor_wait_srec_ack : NULL); |
c906108c SS |
2238 | |
2239 | monitor_expect_prompt (NULL, 0); | |
2240 | } | |
2241 | ||
2242 | /* Finally, make the PC point at the start address */ | |
2243 | ||
2244 | if (exec_bfd) | |
2245 | write_pc (bfd_get_start_address (exec_bfd)); | |
2246 | ||
2247 | inferior_pid = 0; /* No process now */ | |
2248 | ||
2249 | /* This is necessary because many things were based on the PC at the time that | |
2250 | we attached to the monitor, which is no longer valid now that we have loaded | |
2251 | new code (and just changed the PC). Another way to do this might be to call | |
2252 | normal_stop, except that the stack may not be valid, and things would get | |
2253 | horribly confused... */ | |
2254 | ||
2255 | clear_symtab_users (); | |
2256 | } | |
2257 | ||
2258 | static void | |
2259 | monitor_stop () | |
2260 | { | |
2df3850c | 2261 | monitor_debug ("MON stop\n"); |
c906108c SS |
2262 | if ((current_monitor->flags & MO_SEND_BREAK_ON_STOP) != 0) |
2263 | SERIAL_SEND_BREAK (monitor_desc); | |
2264 | if (current_monitor->stop) | |
2265 | monitor_printf_noecho (current_monitor->stop); | |
2266 | } | |
2267 | ||
96baa820 JM |
2268 | /* Put a COMMAND string out to MONITOR. Output from MONITOR is placed |
2269 | in OUTPUT until the prompt is seen. FIXME: We read the characters | |
2270 | ourseleves here cause of a nasty echo. */ | |
c906108c SS |
2271 | |
2272 | static void | |
96baa820 | 2273 | monitor_rcmd (char *command, |
d9fcf2fb | 2274 | struct ui_file *outbuf) |
c906108c SS |
2275 | { |
2276 | char *p; | |
2277 | int resp_len; | |
2278 | char buf[1000]; | |
2279 | ||
2280 | if (monitor_desc == NULL) | |
2281 | error ("monitor target not open."); | |
2282 | ||
2283 | p = current_monitor->prompt; | |
2284 | ||
2285 | /* Send the command. Note that if no args were supplied, then we're | |
2286 | just sending the monitor a newline, which is sometimes useful. */ | |
2287 | ||
96baa820 | 2288 | monitor_printf ("%s\r", (command ? command : "")); |
c906108c SS |
2289 | |
2290 | resp_len = monitor_expect_prompt (buf, sizeof buf); | |
2291 | ||
96baa820 | 2292 | fputs_unfiltered (buf, outbuf); /* Output the response */ |
c906108c SS |
2293 | } |
2294 | ||
2295 | /* Convert hex digit A to a number. */ | |
2296 | ||
2297 | #if 0 | |
2298 | static int | |
2299 | from_hex (a) | |
2300 | int a; | |
c5aa993b | 2301 | { |
c906108c SS |
2302 | if (a >= '0' && a <= '9') |
2303 | return a - '0'; | |
2304 | if (a >= 'a' && a <= 'f') | |
2305 | return a - 'a' + 10; | |
2306 | if (a >= 'A' && a <= 'F') | |
2307 | return a - 'A' + 10; | |
2308 | ||
2309 | error ("Reply contains invalid hex digit 0x%x", a); | |
2310 | } | |
2311 | #endif | |
2312 | ||
2313 | char * | |
2314 | monitor_get_dev_name () | |
2315 | { | |
2316 | return dev_name; | |
2317 | } | |
2318 | ||
2319 | static struct target_ops monitor_ops; | |
2320 | ||
2321 | static void | |
2322 | init_base_monitor_ops (void) | |
2323 | { | |
2324 | monitor_ops.to_shortname = NULL; | |
2325 | monitor_ops.to_longname = NULL; | |
2326 | monitor_ops.to_doc = NULL; | |
2327 | monitor_ops.to_open = NULL; | |
2328 | monitor_ops.to_close = monitor_close; | |
2329 | monitor_ops.to_attach = NULL; | |
2330 | monitor_ops.to_post_attach = NULL; | |
2331 | monitor_ops.to_require_attach = NULL; | |
2332 | monitor_ops.to_detach = monitor_detach; | |
2333 | monitor_ops.to_require_detach = NULL; | |
2334 | monitor_ops.to_resume = monitor_resume; | |
2335 | monitor_ops.to_wait = monitor_wait; | |
2336 | monitor_ops.to_post_wait = NULL; | |
2337 | monitor_ops.to_fetch_registers = monitor_fetch_registers; | |
2338 | monitor_ops.to_store_registers = monitor_store_registers; | |
2339 | monitor_ops.to_prepare_to_store = monitor_prepare_to_store; | |
2340 | monitor_ops.to_xfer_memory = monitor_xfer_memory; | |
2341 | monitor_ops.to_files_info = monitor_files_info; | |
2342 | monitor_ops.to_insert_breakpoint = monitor_insert_breakpoint; | |
2343 | monitor_ops.to_remove_breakpoint = monitor_remove_breakpoint; | |
2344 | monitor_ops.to_terminal_init = 0; | |
2345 | monitor_ops.to_terminal_inferior = 0; | |
2346 | monitor_ops.to_terminal_ours_for_output = 0; | |
2347 | monitor_ops.to_terminal_ours = 0; | |
2348 | monitor_ops.to_terminal_info = 0; | |
2349 | monitor_ops.to_kill = monitor_kill; | |
2350 | monitor_ops.to_load = monitor_load; | |
2351 | monitor_ops.to_lookup_symbol = 0; | |
2352 | monitor_ops.to_create_inferior = monitor_create_inferior; | |
2353 | monitor_ops.to_post_startup_inferior = NULL; | |
2354 | monitor_ops.to_acknowledge_created_inferior = NULL; | |
2355 | monitor_ops.to_clone_and_follow_inferior = NULL; | |
2356 | monitor_ops.to_post_follow_inferior_by_clone = NULL; | |
2357 | monitor_ops.to_insert_fork_catchpoint = NULL; | |
2358 | monitor_ops.to_remove_fork_catchpoint = NULL; | |
2359 | monitor_ops.to_insert_vfork_catchpoint = NULL; | |
2360 | monitor_ops.to_remove_vfork_catchpoint = NULL; | |
2361 | monitor_ops.to_has_forked = NULL; | |
2362 | monitor_ops.to_has_vforked = NULL; | |
2363 | monitor_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
2364 | monitor_ops.to_post_follow_vfork = NULL; | |
2365 | monitor_ops.to_insert_exec_catchpoint = NULL; | |
2366 | monitor_ops.to_remove_exec_catchpoint = NULL; | |
2367 | monitor_ops.to_has_execd = NULL; | |
2368 | monitor_ops.to_reported_exec_events_per_exec_call = NULL; | |
2369 | monitor_ops.to_has_exited = NULL; | |
2370 | monitor_ops.to_mourn_inferior = monitor_mourn_inferior; | |
2371 | monitor_ops.to_can_run = 0; | |
2372 | monitor_ops.to_notice_signals = 0; | |
2373 | monitor_ops.to_thread_alive = 0; | |
2374 | monitor_ops.to_stop = monitor_stop; | |
96baa820 | 2375 | monitor_ops.to_rcmd = monitor_rcmd; |
c906108c SS |
2376 | monitor_ops.to_pid_to_exec_file = NULL; |
2377 | monitor_ops.to_core_file_to_sym_file = NULL; | |
2378 | monitor_ops.to_stratum = process_stratum; | |
2379 | monitor_ops.DONT_USE = 0; | |
2380 | monitor_ops.to_has_all_memory = 1; | |
2381 | monitor_ops.to_has_memory = 1; | |
2382 | monitor_ops.to_has_stack = 1; | |
2383 | monitor_ops.to_has_registers = 1; | |
2384 | monitor_ops.to_has_execution = 1; | |
2385 | monitor_ops.to_sections = 0; | |
2386 | monitor_ops.to_sections_end = 0; | |
2387 | monitor_ops.to_magic = OPS_MAGIC; | |
c5aa993b | 2388 | } /* init_base_monitor_ops */ |
c906108c SS |
2389 | |
2390 | /* Init the target_ops structure pointed at by OPS */ | |
2391 | ||
2392 | void | |
2393 | init_monitor_ops (ops) | |
2394 | struct target_ops *ops; | |
2395 | { | |
2396 | if (monitor_ops.to_magic != OPS_MAGIC) | |
2397 | init_base_monitor_ops (); | |
2398 | ||
2399 | memcpy (ops, &monitor_ops, sizeof monitor_ops); | |
2400 | } | |
2401 | ||
2402 | /* Define additional commands that are usually only used by monitors. */ | |
2403 | ||
2404 | void | |
2405 | _initialize_remote_monitors () | |
2406 | { | |
2407 | init_base_monitor_ops (); | |
2408 | add_show_from_set (add_set_cmd ("hash", no_class, var_boolean, | |
c5aa993b | 2409 | (char *) &hashmark, |
c906108c SS |
2410 | "Set display of activity while downloading a file.\n\ |
2411 | When enabled, a hashmark \'#\' is displayed.", | |
c5aa993b | 2412 | &setlist), |
c906108c | 2413 | &showlist); |
2df3850c | 2414 | |
2df3850c | 2415 | add_show_from_set |
5d161b24 | 2416 | (add_set_cmd ("monitor", no_class, var_zinteger, |
2df3850c JM |
2417 | (char *) &monitor_debug_p, |
2418 | "Set debugging of remote monitor communication.\n\ | |
2419 | When enabled, communication between GDB and the remote monitor\n\ | |
5d161b24 DB |
2420 | is displayed.", &setdebuglist), |
2421 | &showdebuglist); | |
c906108c | 2422 | } |