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 | |
8e1a459b | 26 | into existence, and makes for quick porting. |
c906108c SS |
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 "srec.h" |
55 | ||
56 | static char *dev_name; | |
57 | static struct target_ops *targ_ops; | |
58 | ||
a14ed312 | 59 | static void monitor_vsprintf (char *sndbuf, char *pattern, va_list args); |
c906108c | 60 | |
a14ed312 | 61 | static int readchar (int timeout); |
c906108c | 62 | |
a14ed312 KB |
63 | static void monitor_fetch_register (int regno); |
64 | static void monitor_store_register (int regno); | |
c906108c | 65 | |
2df3850c JM |
66 | static void monitor_printable_string (char *newstr, char *oldstr, int len); |
67 | static void monitor_error (char *function, char *message, CORE_ADDR memaddr, int len, char *string, int final_char); | |
a14ed312 KB |
68 | static void monitor_detach (char *args, int from_tty); |
69 | static void monitor_resume (int pid, int step, enum target_signal sig); | |
70 | static void monitor_interrupt (int signo); | |
71 | static void monitor_interrupt_twice (int signo); | |
72 | static void monitor_interrupt_query (void); | |
73 | static void monitor_wait_cleanup (void *old_timeout); | |
74 | ||
75 | static int monitor_wait (int pid, struct target_waitstatus *status); | |
76 | static void monitor_fetch_registers (int regno); | |
77 | static void monitor_store_registers (int regno); | |
78 | static void monitor_prepare_to_store (void); | |
79 | static int monitor_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, | |
80 | int write, struct target_ops *target); | |
81 | static void monitor_files_info (struct target_ops *ops); | |
82 | static int monitor_insert_breakpoint (CORE_ADDR addr, char *shadow); | |
83 | static int monitor_remove_breakpoint (CORE_ADDR addr, char *shadow); | |
84 | static void monitor_kill (void); | |
85 | static void monitor_load (char *file, int from_tty); | |
86 | static void monitor_mourn_inferior (void); | |
87 | static void monitor_stop (void); | |
88 | ||
89 | static int monitor_read_memory (CORE_ADDR addr, char *myaddr, int len); | |
90 | static int monitor_write_memory (CORE_ADDR addr, char *myaddr, int len); | |
91 | static int monitor_write_memory_bytes (CORE_ADDR addr, char *myaddr, int len); | |
92 | static int monitor_write_memory_block (CORE_ADDR memaddr, | |
93 | char *myaddr, int len); | |
94 | static int monitor_expect_regexp (struct re_pattern_buffer *pat, | |
95 | char *buf, int buflen); | |
96 | static void monitor_dump_regs (void); | |
c906108c | 97 | #if 0 |
a14ed312 KB |
98 | static int from_hex (int a); |
99 | static unsigned long get_hex_word (void); | |
c906108c | 100 | #endif |
a14ed312 | 101 | static void parse_register_dump (char *, int); |
c906108c SS |
102 | |
103 | static struct monitor_ops *current_monitor; | |
104 | ||
105 | static int hashmark; /* flag set by "set hash" */ | |
106 | ||
107 | static int timeout = 30; | |
108 | ||
109 | static int in_monitor_wait = 0; /* Non-zero means we are in monitor_wait() */ | |
110 | ||
c5aa993b | 111 | static void (*ofunc) (); /* Old SIGINT signal handler */ |
c906108c | 112 | |
9e086581 JM |
113 | static CORE_ADDR *breakaddr; |
114 | ||
c906108c SS |
115 | /* Descriptor for I/O to remote machine. Initialize it to NULL so |
116 | that monitor_open knows that we don't have a file open when the | |
117 | program starts. */ | |
118 | ||
119 | static serial_t monitor_desc = NULL; | |
120 | ||
121 | /* Pointer to regexp pattern matching data */ | |
122 | ||
123 | static struct re_pattern_buffer register_pattern; | |
124 | static char register_fastmap[256]; | |
125 | ||
126 | static struct re_pattern_buffer getmem_resp_delim_pattern; | |
127 | static char getmem_resp_delim_fastmap[256]; | |
128 | ||
129 | static int dump_reg_flag; /* Non-zero means do a dump_registers cmd when | |
130 | monitor_wait wakes up. */ | |
131 | ||
c5aa993b JM |
132 | static int first_time = 0; /* is this the first time we're executing after |
133 | gaving created the child proccess? */ | |
c906108c | 134 | |
d4f3574e SS |
135 | #define TARGET_BUF_SIZE 2048 |
136 | ||
2df3850c JM |
137 | /* Monitor specific debugging information. Typically only useful to |
138 | the developer of a new monitor interface. */ | |
c906108c | 139 | |
2df3850c JM |
140 | static void monitor_debug (const char *fmt, ...) ATTR_FORMAT(printf, 1, 2); |
141 | ||
142 | static int monitor_debug_p = 0; | |
143 | ||
144 | /* NOTE: This file alternates between monitor_debug_p and remote_debug | |
145 | when determining if debug information is printed. Perhaphs this | |
146 | could be simplified. */ | |
147 | ||
148 | static void | |
149 | monitor_debug (const char *fmt, ...) | |
150 | { | |
151 | if (monitor_debug_p) | |
152 | { | |
153 | va_list args; | |
154 | va_start (args, fmt); | |
155 | vfprintf_filtered (gdb_stdlog, fmt, args); | |
156 | va_end (args); | |
157 | } | |
158 | } | |
159 | ||
160 | ||
161 | /* Convert a string into a printable representation, Return # byte in | |
162 | the new string. When LEN is >0 it specifies the size of the | |
163 | string. Otherwize strlen(oldstr) is used. */ | |
164 | ||
165 | static void | |
166 | monitor_printable_string (char *newstr, char *oldstr, int len) | |
c906108c | 167 | { |
c906108c | 168 | int ch; |
2df3850c JM |
169 | int i; |
170 | ||
171 | if (len <= 0) | |
172 | len = strlen (oldstr); | |
c906108c | 173 | |
2df3850c | 174 | for (i = 0; i < len; i++) |
c906108c | 175 | { |
2df3850c | 176 | ch = oldstr[i]; |
c906108c | 177 | switch (ch) |
c5aa993b | 178 | { |
c906108c SS |
179 | default: |
180 | if (isprint (ch)) | |
181 | *newstr++ = ch; | |
182 | ||
183 | else | |
184 | { | |
185 | sprintf (newstr, "\\x%02x", ch & 0xff); | |
186 | newstr += 4; | |
187 | } | |
188 | break; | |
189 | ||
c5aa993b JM |
190 | case '\\': |
191 | *newstr++ = '\\'; | |
192 | *newstr++ = '\\'; | |
193 | break; | |
194 | case '\b': | |
195 | *newstr++ = '\\'; | |
196 | *newstr++ = 'b'; | |
197 | break; | |
198 | case '\f': | |
199 | *newstr++ = '\\'; | |
200 | *newstr++ = 't'; | |
201 | break; | |
202 | case '\n': | |
203 | *newstr++ = '\\'; | |
204 | *newstr++ = 'n'; | |
205 | break; | |
206 | case '\r': | |
207 | *newstr++ = '\\'; | |
208 | *newstr++ = 'r'; | |
209 | break; | |
210 | case '\t': | |
211 | *newstr++ = '\\'; | |
212 | *newstr++ = 't'; | |
213 | break; | |
214 | case '\v': | |
215 | *newstr++ = '\\'; | |
216 | *newstr++ = 'v'; | |
217 | break; | |
218 | } | |
c906108c SS |
219 | } |
220 | ||
221 | *newstr++ = '\0'; | |
c906108c SS |
222 | } |
223 | ||
224 | /* Print monitor errors with a string, converting the string to printable | |
225 | representation. */ | |
226 | ||
227 | static void | |
2df3850c JM |
228 | monitor_error (char *function, char *message, |
229 | CORE_ADDR memaddr, int len, char *string, int final_char) | |
c906108c | 230 | { |
c5aa993b | 231 | int real_len = (len == 0 && string != (char *) 0) ? strlen (string) : len; |
c906108c | 232 | char *safe_string = alloca ((real_len * 4) + 1); |
2df3850c | 233 | monitor_printable_string (safe_string, string, real_len); |
c906108c SS |
234 | |
235 | if (final_char) | |
2df3850c | 236 | error ("%s (0x%s): %s: %s%c", function, paddr_nz (memaddr), message, safe_string, final_char); |
c906108c | 237 | else |
2df3850c | 238 | error ("%s (0x%s): %s: %s", function, paddr_nz (memaddr), message, safe_string); |
c906108c SS |
239 | } |
240 | ||
241 | /* Convert hex digit A to a number. */ | |
242 | ||
243 | static int | |
fba45db2 | 244 | fromhex (int a) |
c906108c SS |
245 | { |
246 | if (a >= '0' && a <= '9') | |
247 | return a - '0'; | |
248 | else if (a >= 'a' && a <= 'f') | |
249 | return a - 'a' + 10; | |
c5aa993b JM |
250 | else if (a >= 'A' && a <= 'F') |
251 | return a - 'A' + 10; | |
c906108c | 252 | else |
c5aa993b | 253 | error ("Invalid hex digit %d", a); |
c906108c SS |
254 | } |
255 | ||
256 | /* monitor_vsprintf - similar to vsprintf but handles 64-bit addresses | |
257 | ||
258 | This function exists to get around the problem that many host platforms | |
259 | don't have a printf that can print 64-bit addresses. The %A format | |
260 | specification is recognized as a special case, and causes the argument | |
261 | to be printed as a 64-bit hexadecimal address. | |
262 | ||
263 | Only format specifiers of the form "[0-9]*[a-z]" are recognized. | |
264 | If it is a '%s' format, the argument is a string; otherwise the | |
265 | argument is assumed to be a long integer. | |
266 | ||
267 | %% is also turned into a single %. | |
c5aa993b JM |
268 | */ |
269 | ||
c906108c | 270 | static void |
fba45db2 | 271 | monitor_vsprintf (char *sndbuf, char *pattern, va_list args) |
c906108c SS |
272 | { |
273 | char format[10]; | |
274 | char fmt; | |
275 | char *p; | |
276 | int i; | |
277 | long arg_int; | |
278 | CORE_ADDR arg_addr; | |
279 | char *arg_string; | |
280 | ||
281 | for (p = pattern; *p; p++) | |
282 | { | |
283 | if (*p == '%') | |
284 | { | |
285 | /* Copy the format specifier to a separate buffer. */ | |
286 | format[0] = *p++; | |
287 | for (i = 1; *p >= '0' && *p <= '9' && i < (int) sizeof (format) - 2; | |
288 | i++, p++) | |
289 | format[i] = *p; | |
290 | format[i] = fmt = *p; | |
c5aa993b | 291 | format[i + 1] = '\0'; |
c906108c SS |
292 | |
293 | /* Fetch the next argument and print it. */ | |
294 | switch (fmt) | |
295 | { | |
296 | case '%': | |
297 | strcpy (sndbuf, "%"); | |
298 | break; | |
299 | case 'A': | |
300 | arg_addr = va_arg (args, CORE_ADDR); | |
301 | strcpy (sndbuf, paddr_nz (arg_addr)); | |
302 | break; | |
303 | case 's': | |
304 | arg_string = va_arg (args, char *); | |
305 | sprintf (sndbuf, format, arg_string); | |
306 | break; | |
307 | default: | |
308 | arg_int = va_arg (args, long); | |
309 | sprintf (sndbuf, format, arg_int); | |
310 | break; | |
311 | } | |
312 | sndbuf += strlen (sndbuf); | |
313 | } | |
314 | else | |
315 | *sndbuf++ = *p; | |
316 | } | |
317 | *sndbuf = '\0'; | |
318 | } | |
319 | ||
320 | ||
321 | /* monitor_printf_noecho -- Send data to monitor, but don't expect an echo. | |
322 | Works just like printf. */ | |
323 | ||
324 | void | |
c5aa993b | 325 | monitor_printf_noecho (char *pattern,...) |
c906108c SS |
326 | { |
327 | va_list args; | |
328 | char sndbuf[2000]; | |
329 | int len; | |
330 | ||
c906108c | 331 | va_start (args, pattern); |
c906108c SS |
332 | |
333 | monitor_vsprintf (sndbuf, pattern, args); | |
334 | ||
335 | len = strlen (sndbuf); | |
336 | if (len + 1 > sizeof sndbuf) | |
337 | abort (); | |
338 | ||
2df3850c | 339 | if (monitor_debug_p) |
c906108c SS |
340 | { |
341 | char *safe_string = (char *) alloca ((strlen (sndbuf) * 4) + 1); | |
2df3850c JM |
342 | monitor_printable_string (safe_string, sndbuf, 0); |
343 | fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string); | |
c906108c | 344 | } |
c5aa993b | 345 | |
c906108c SS |
346 | monitor_write (sndbuf, len); |
347 | } | |
348 | ||
349 | /* monitor_printf -- Send data to monitor and check the echo. Works just like | |
350 | printf. */ | |
351 | ||
352 | void | |
c5aa993b | 353 | monitor_printf (char *pattern,...) |
c906108c SS |
354 | { |
355 | va_list args; | |
356 | char sndbuf[2000]; | |
357 | int len; | |
358 | ||
c906108c | 359 | va_start (args, pattern); |
c906108c SS |
360 | |
361 | monitor_vsprintf (sndbuf, pattern, args); | |
362 | ||
363 | len = strlen (sndbuf); | |
364 | if (len + 1 > sizeof sndbuf) | |
365 | abort (); | |
366 | ||
2df3850c | 367 | if (monitor_debug_p) |
c906108c SS |
368 | { |
369 | char *safe_string = (char *) alloca ((len * 4) + 1); | |
2df3850c JM |
370 | monitor_printable_string (safe_string, sndbuf, 0); |
371 | fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string); | |
c906108c SS |
372 | } |
373 | ||
374 | monitor_write (sndbuf, len); | |
375 | ||
376 | /* We used to expect that the next immediate output was the characters we | |
377 | just output, but sometimes some extra junk appeared before the characters | |
378 | we expected, like an extra prompt, or a portmaster sending telnet negotiations. | |
379 | So, just start searching for what we sent, and skip anything unknown. */ | |
2df3850c JM |
380 | monitor_debug ("ExpectEcho\n"); |
381 | monitor_expect (sndbuf, (char *) 0, 0); | |
c906108c SS |
382 | } |
383 | ||
384 | ||
385 | /* Write characters to the remote system. */ | |
386 | ||
387 | void | |
fba45db2 | 388 | monitor_write (char *buf, int buflen) |
c906108c | 389 | { |
c5aa993b | 390 | if (SERIAL_WRITE (monitor_desc, buf, buflen)) |
c906108c SS |
391 | fprintf_unfiltered (gdb_stderr, "SERIAL_WRITE failed: %s\n", |
392 | safe_strerror (errno)); | |
393 | } | |
394 | ||
395 | ||
396 | /* Read a binary character from the remote system, doing all the fancy | |
397 | timeout stuff, but without interpreting the character in any way, | |
398 | and without printing remote debug information. */ | |
399 | ||
400 | int | |
fba45db2 | 401 | monitor_readchar (void) |
c906108c SS |
402 | { |
403 | int c; | |
404 | int looping; | |
405 | ||
406 | do | |
407 | { | |
408 | looping = 0; | |
409 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
410 | ||
411 | if (c >= 0) | |
c5aa993b | 412 | c &= 0xff; /* don't lose bit 7 */ |
c906108c SS |
413 | } |
414 | while (looping); | |
415 | ||
416 | if (c >= 0) | |
417 | return c; | |
418 | ||
419 | if (c == SERIAL_TIMEOUT) | |
c5aa993b | 420 | error ("Timeout reading from remote system."); |
c906108c SS |
421 | |
422 | perror_with_name ("remote-monitor"); | |
423 | } | |
424 | ||
425 | ||
426 | /* Read a character from the remote system, doing all the fancy | |
427 | timeout stuff. */ | |
428 | ||
429 | static int | |
fba45db2 | 430 | readchar (int timeout) |
c906108c SS |
431 | { |
432 | int c; | |
c5aa993b JM |
433 | static enum |
434 | { | |
435 | last_random, last_nl, last_cr, last_crnl | |
436 | } | |
437 | state = last_random; | |
c906108c SS |
438 | int looping; |
439 | ||
440 | do | |
441 | { | |
442 | looping = 0; | |
443 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
444 | ||
445 | if (c >= 0) | |
446 | { | |
447 | c &= 0x7f; | |
c906108c SS |
448 | /* This seems to interfere with proper function of the |
449 | input stream */ | |
2df3850c | 450 | if (monitor_debug_p || remote_debug) |
c906108c SS |
451 | { |
452 | char buf[2]; | |
453 | buf[0] = c; | |
454 | buf[1] = '\0'; | |
455 | puts_debug ("read -->", buf, "<--"); | |
456 | } | |
c5aa993b | 457 | |
c906108c SS |
458 | } |
459 | ||
460 | /* Canonicialize \n\r combinations into one \r */ | |
461 | if ((current_monitor->flags & MO_HANDLE_NL) != 0) | |
462 | { | |
463 | if ((c == '\r' && state == last_nl) | |
464 | || (c == '\n' && state == last_cr)) | |
465 | { | |
466 | state = last_crnl; | |
467 | looping = 1; | |
468 | } | |
469 | else if (c == '\r') | |
470 | state = last_cr; | |
471 | else if (c != '\n') | |
472 | state = last_random; | |
473 | else | |
474 | { | |
475 | state = last_nl; | |
476 | c = '\r'; | |
477 | } | |
478 | } | |
479 | } | |
480 | while (looping); | |
481 | ||
482 | if (c >= 0) | |
483 | return c; | |
484 | ||
485 | if (c == SERIAL_TIMEOUT) | |
7a292a7a | 486 | #if 0 |
c906108c SS |
487 | /* I fail to see how detaching here can be useful */ |
488 | if (in_monitor_wait) /* Watchdog went off */ | |
489 | { | |
490 | target_mourn_inferior (); | |
491 | error ("GDB serial timeout has expired. Target detached.\n"); | |
492 | } | |
493 | else | |
494 | #endif | |
495 | error ("Timeout reading from remote system."); | |
496 | ||
497 | perror_with_name ("remote-monitor"); | |
498 | } | |
499 | ||
500 | /* Scan input from the remote system, until STRING is found. If BUF is non- | |
501 | zero, then collect input until we have collected either STRING or BUFLEN-1 | |
502 | chars. In either case we terminate BUF with a 0. If input overflows BUF | |
503 | because STRING can't be found, return -1, else return number of chars in BUF | |
504 | (minus the terminating NUL). Note that in the non-overflow case, STRING | |
505 | will be at the end of BUF. */ | |
506 | ||
507 | int | |
fba45db2 | 508 | monitor_expect (char *string, char *buf, int buflen) |
c906108c SS |
509 | { |
510 | char *p = string; | |
511 | int obuflen = buflen; | |
512 | int c; | |
513 | extern struct target_ops *targ_ops; | |
514 | ||
2df3850c | 515 | if (monitor_debug_p) |
c906108c SS |
516 | { |
517 | char *safe_string = (char *) alloca ((strlen (string) * 4) + 1); | |
2df3850c JM |
518 | monitor_printable_string (safe_string, string, 0); |
519 | fprintf_unfiltered (gdb_stdlog, "MON Expecting '%s'\n", safe_string); | |
c906108c SS |
520 | } |
521 | ||
8edbea78 | 522 | immediate_quit++; |
c906108c SS |
523 | while (1) |
524 | { | |
525 | if (buf) | |
526 | { | |
527 | if (buflen < 2) | |
528 | { | |
529 | *buf = '\000'; | |
8edbea78 | 530 | immediate_quit--; |
c906108c SS |
531 | return -1; |
532 | } | |
533 | ||
534 | c = readchar (timeout); | |
535 | if (c == '\000') | |
536 | continue; | |
537 | *buf++ = c; | |
538 | buflen--; | |
539 | } | |
540 | else | |
541 | c = readchar (timeout); | |
542 | ||
543 | /* Don't expect any ^C sent to be echoed */ | |
c5aa993b | 544 | |
c906108c SS |
545 | if (*p == '\003' || c == *p) |
546 | { | |
547 | p++; | |
548 | if (*p == '\0') | |
549 | { | |
8edbea78 | 550 | immediate_quit--; |
c906108c SS |
551 | |
552 | if (buf) | |
553 | { | |
554 | *buf++ = '\000'; | |
555 | return obuflen - buflen; | |
556 | } | |
557 | else | |
558 | return 0; | |
559 | } | |
560 | } | |
561 | else if ((c == '\021' || c == '\023') && | |
562 | (STREQ (targ_ops->to_shortname, "m32r") | |
563 | || STREQ (targ_ops->to_shortname, "mon2000"))) | |
c5aa993b | 564 | { /* m32r monitor emits random DC1/DC3 chars */ |
c906108c SS |
565 | continue; |
566 | } | |
567 | else | |
568 | { | |
a0b3c4fd JM |
569 | /* We got a character that doesn't match the string. We need to |
570 | back up p, but how far? If we're looking for "..howdy" and the | |
571 | monitor sends "...howdy"? There's certainly a match in there, | |
572 | but when we receive the third ".", we won't find it if we just | |
573 | restart the matching at the beginning of the string. | |
574 | ||
575 | This is a Boyer-Moore kind of situation. We want to reset P to | |
576 | the end of the longest prefix of STRING that is a suffix of | |
577 | what we've read so far. In the example above, that would be | |
578 | ".." --- the longest prefix of "..howdy" that is a suffix of | |
579 | "...". This longest prefix could be the empty string, if C | |
580 | is nowhere to be found in STRING. | |
581 | ||
582 | If this longest prefix is not the empty string, it must contain | |
583 | C, so let's search from the end of STRING for instances of C, | |
584 | and see if the portion of STRING before that is a suffix of | |
585 | what we read before C. Actually, we can search backwards from | |
586 | p, since we know no prefix can be longer than that. | |
587 | ||
588 | Note that we can use STRING itself, along with C, as a record | |
589 | of what we've received so far. :) */ | |
590 | int i; | |
591 | ||
592 | for (i = (p - string) - 1; i >= 0; i--) | |
593 | if (string[i] == c) | |
594 | { | |
595 | /* Is this prefix a suffix of what we've read so far? | |
596 | In other words, does | |
597 | string[0 .. i-1] == string[p - i, p - 1]? */ | |
598 | if (! memcmp (string, p - i, i)) | |
599 | { | |
600 | p = string + i + 1; | |
601 | break; | |
602 | } | |
603 | } | |
604 | if (i < 0) | |
605 | p = string; | |
c906108c SS |
606 | } |
607 | } | |
608 | } | |
609 | ||
610 | /* Search for a regexp. */ | |
611 | ||
612 | static int | |
fba45db2 | 613 | monitor_expect_regexp (struct re_pattern_buffer *pat, char *buf, int buflen) |
c906108c SS |
614 | { |
615 | char *mybuf; | |
616 | char *p; | |
2df3850c | 617 | monitor_debug ("MON Expecting regexp\n"); |
c906108c SS |
618 | if (buf) |
619 | mybuf = buf; | |
620 | else | |
621 | { | |
d4f3574e SS |
622 | mybuf = alloca (TARGET_BUF_SIZE); |
623 | buflen = TARGET_BUF_SIZE; | |
c906108c SS |
624 | } |
625 | ||
626 | p = mybuf; | |
627 | while (1) | |
628 | { | |
629 | int retval; | |
630 | ||
631 | if (p - mybuf >= buflen) | |
632 | { /* Buffer about to overflow */ | |
633 | ||
634 | /* On overflow, we copy the upper half of the buffer to the lower half. Not | |
635 | great, but it usually works... */ | |
636 | ||
637 | memcpy (mybuf, mybuf + buflen / 2, buflen / 2); | |
638 | p = mybuf + buflen / 2; | |
639 | } | |
640 | ||
641 | *p++ = readchar (timeout); | |
642 | ||
643 | retval = re_search (pat, mybuf, p - mybuf, 0, p - mybuf, NULL); | |
644 | if (retval >= 0) | |
645 | return 1; | |
646 | } | |
647 | } | |
648 | ||
649 | /* Keep discarding input until we see the MONITOR prompt. | |
650 | ||
651 | The convention for dealing with the prompt is that you | |
652 | o give your command | |
653 | o *then* wait for the prompt. | |
654 | ||
655 | Thus the last thing that a procedure does with the serial line will | |
656 | be an monitor_expect_prompt(). Exception: monitor_resume does not | |
657 | wait for the prompt, because the terminal is being handed over to | |
658 | the inferior. However, the next thing which happens after that is | |
659 | a monitor_wait which does wait for the prompt. Note that this | |
660 | includes abnormal exit, e.g. error(). This is necessary to prevent | |
661 | getting into states from which we can't recover. */ | |
662 | ||
663 | int | |
fba45db2 | 664 | monitor_expect_prompt (char *buf, int buflen) |
c906108c | 665 | { |
2df3850c JM |
666 | monitor_debug ("MON Expecting prompt\n"); |
667 | return monitor_expect (current_monitor->prompt, buf, buflen); | |
c906108c SS |
668 | } |
669 | ||
670 | /* Get N 32-bit words from remote, each preceded by a space, and put | |
671 | them in registers starting at REGNO. */ | |
672 | ||
673 | #if 0 | |
674 | static unsigned long | |
fba45db2 | 675 | get_hex_word (void) |
c906108c SS |
676 | { |
677 | unsigned long val; | |
678 | int i; | |
679 | int ch; | |
680 | ||
681 | do | |
682 | ch = readchar (timeout); | |
c5aa993b | 683 | while (isspace (ch)); |
c906108c SS |
684 | |
685 | val = from_hex (ch); | |
686 | ||
687 | for (i = 7; i >= 1; i--) | |
688 | { | |
689 | ch = readchar (timeout); | |
690 | if (!isxdigit (ch)) | |
691 | break; | |
692 | val = (val << 4) | from_hex (ch); | |
693 | } | |
694 | ||
695 | return val; | |
696 | } | |
697 | #endif | |
698 | ||
699 | static void | |
fba45db2 KB |
700 | compile_pattern (char *pattern, struct re_pattern_buffer *compiled_pattern, |
701 | char *fastmap) | |
c906108c SS |
702 | { |
703 | int tmp; | |
704 | const char *val; | |
705 | ||
706 | compiled_pattern->fastmap = fastmap; | |
707 | ||
708 | tmp = re_set_syntax (RE_SYNTAX_EMACS); | |
709 | val = re_compile_pattern (pattern, | |
710 | strlen (pattern), | |
711 | compiled_pattern); | |
712 | re_set_syntax (tmp); | |
713 | ||
714 | if (val) | |
715 | error ("compile_pattern: Can't compile pattern string `%s': %s!", pattern, val); | |
716 | ||
717 | if (fastmap) | |
718 | re_compile_fastmap (compiled_pattern); | |
719 | } | |
720 | ||
721 | /* Open a connection to a remote debugger. NAME is the filename used | |
722 | for communication. */ | |
723 | ||
724 | void | |
fba45db2 | 725 | monitor_open (char *args, struct monitor_ops *mon_ops, int from_tty) |
c906108c SS |
726 | { |
727 | char *name; | |
728 | char **p; | |
729 | ||
730 | if (mon_ops->magic != MONITOR_OPS_MAGIC) | |
731 | error ("Magic number of monitor_ops struct wrong."); | |
732 | ||
733 | targ_ops = mon_ops->target; | |
734 | name = targ_ops->to_shortname; | |
735 | ||
736 | if (!args) | |
737 | error ("Use `target %s DEVICE-NAME' to use a serial port, or \n\ | |
738 | `target %s HOST-NAME:PORT-NUMBER' to use a network connection.", name, name); | |
739 | ||
740 | target_preopen (from_tty); | |
741 | ||
742 | /* Setup pattern for register dump */ | |
743 | ||
744 | if (mon_ops->register_pattern) | |
745 | compile_pattern (mon_ops->register_pattern, ®ister_pattern, | |
746 | register_fastmap); | |
747 | ||
748 | if (mon_ops->getmem.resp_delim) | |
749 | compile_pattern (mon_ops->getmem.resp_delim, &getmem_resp_delim_pattern, | |
750 | getmem_resp_delim_fastmap); | |
751 | ||
752 | unpush_target (targ_ops); | |
753 | ||
754 | if (dev_name) | |
b8c9b27d | 755 | xfree (dev_name); |
c906108c SS |
756 | dev_name = strsave (args); |
757 | ||
758 | monitor_desc = SERIAL_OPEN (dev_name); | |
759 | ||
760 | if (!monitor_desc) | |
761 | perror_with_name (dev_name); | |
762 | ||
763 | if (baud_rate != -1) | |
764 | { | |
765 | if (SERIAL_SETBAUDRATE (monitor_desc, baud_rate)) | |
766 | { | |
767 | SERIAL_CLOSE (monitor_desc); | |
768 | perror_with_name (dev_name); | |
769 | } | |
770 | } | |
c5aa993b | 771 | |
c906108c SS |
772 | SERIAL_RAW (monitor_desc); |
773 | ||
774 | SERIAL_FLUSH_INPUT (monitor_desc); | |
775 | ||
776 | /* some systems only work with 2 stop bits */ | |
777 | ||
778 | SERIAL_SETSTOPBITS (monitor_desc, mon_ops->stopbits); | |
779 | ||
780 | current_monitor = mon_ops; | |
781 | ||
782 | /* See if we can wake up the monitor. First, try sending a stop sequence, | |
783 | then send the init strings. Last, remove all breakpoints. */ | |
784 | ||
785 | if (current_monitor->stop) | |
786 | { | |
787 | monitor_stop (); | |
788 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) | |
c5aa993b | 789 | { |
2df3850c | 790 | monitor_debug ("EXP Open echo\n"); |
c5aa993b JM |
791 | monitor_expect_prompt (NULL, 0); |
792 | } | |
c906108c SS |
793 | } |
794 | ||
795 | /* wake up the monitor and see if it's alive */ | |
796 | for (p = mon_ops->init; *p != NULL; p++) | |
797 | { | |
798 | /* Some of the characters we send may not be echoed, | |
c5aa993b JM |
799 | but we hope to get a prompt at the end of it all. */ |
800 | ||
c906108c | 801 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) |
c5aa993b | 802 | monitor_printf (*p); |
c906108c | 803 | else |
c5aa993b | 804 | monitor_printf_noecho (*p); |
c906108c SS |
805 | monitor_expect_prompt (NULL, 0); |
806 | } | |
807 | ||
808 | SERIAL_FLUSH_INPUT (monitor_desc); | |
809 | ||
9e086581 JM |
810 | /* Alloc breakpoints */ |
811 | if (mon_ops->set_break != NULL) | |
812 | { | |
813 | if (mon_ops->num_breakpoints == 0) | |
814 | mon_ops->num_breakpoints = 8; | |
815 | ||
816 | breakaddr = (CORE_ADDR *) xmalloc (mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
817 | memset (breakaddr, 0, mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
818 | } | |
819 | ||
c906108c SS |
820 | /* Remove all breakpoints */ |
821 | ||
822 | if (mon_ops->clr_all_break) | |
823 | { | |
824 | monitor_printf (mon_ops->clr_all_break); | |
825 | monitor_expect_prompt (NULL, 0); | |
826 | } | |
827 | ||
828 | if (from_tty) | |
829 | printf_unfiltered ("Remote target %s connected to %s\n", name, dev_name); | |
830 | ||
831 | push_target (targ_ops); | |
832 | ||
833 | inferior_pid = 42000; /* Make run command think we are busy... */ | |
834 | ||
835 | /* Give monitor_wait something to read */ | |
836 | ||
837 | monitor_printf (current_monitor->line_term); | |
838 | ||
c906108c SS |
839 | start_remote (); |
840 | } | |
841 | ||
842 | /* Close out all files and local state before this target loses | |
843 | control. */ | |
844 | ||
845 | void | |
fba45db2 | 846 | monitor_close (int quitting) |
c906108c SS |
847 | { |
848 | if (monitor_desc) | |
849 | SERIAL_CLOSE (monitor_desc); | |
9e086581 JM |
850 | |
851 | /* Free breakpoint memory */ | |
852 | if (breakaddr != NULL) | |
853 | { | |
b8c9b27d | 854 | xfree (breakaddr); |
9e086581 JM |
855 | breakaddr = NULL; |
856 | } | |
857 | ||
c906108c SS |
858 | monitor_desc = NULL; |
859 | } | |
860 | ||
861 | /* Terminate the open connection to the remote debugger. Use this | |
862 | when you want to detach and do something else with your gdb. */ | |
863 | ||
864 | static void | |
fba45db2 | 865 | monitor_detach (char *args, int from_tty) |
c906108c SS |
866 | { |
867 | pop_target (); /* calls monitor_close to do the real work */ | |
868 | if (from_tty) | |
869 | printf_unfiltered ("Ending remote %s debugging\n", target_shortname); | |
870 | } | |
871 | ||
872 | /* Convert VALSTR into the target byte-ordered value of REGNO and store it. */ | |
873 | ||
874 | char * | |
fba45db2 | 875 | monitor_supply_register (int regno, char *valstr) |
c906108c | 876 | { |
d4f3574e | 877 | ULONGEST val; |
c906108c SS |
878 | unsigned char regbuf[MAX_REGISTER_RAW_SIZE]; |
879 | char *p; | |
880 | ||
4ce44c66 | 881 | val = 0; |
d4f3574e SS |
882 | p = valstr; |
883 | while (p && *p != '\0') | |
884 | { | |
885 | if (*p == '\r' || *p == '\n') | |
886 | { | |
887 | while (*p != '\0') | |
888 | p++; | |
889 | break; | |
890 | } | |
891 | if (isspace (*p)) | |
892 | { | |
893 | p++; | |
894 | continue; | |
895 | } | |
896 | if (!isxdigit (*p) && *p != 'x') | |
897 | { | |
898 | break; | |
899 | } | |
900 | ||
901 | val <<= 4; | |
902 | val += fromhex (*p++); | |
903 | } | |
2df3850c | 904 | monitor_debug ("Supplying Register %d %s\n", regno, valstr); |
c906108c | 905 | |
d4f3574e | 906 | if (*p != '\0') |
c906108c SS |
907 | error ("monitor_supply_register (%d): bad value from monitor: %s.", |
908 | regno, valstr); | |
909 | ||
910 | /* supply register stores in target byte order, so swap here */ | |
911 | ||
912 | store_unsigned_integer (regbuf, REGISTER_RAW_SIZE (regno), val); | |
913 | ||
914 | supply_register (regno, regbuf); | |
915 | ||
916 | return p; | |
917 | } | |
918 | ||
919 | /* Tell the remote machine to resume. */ | |
920 | ||
c906108c | 921 | static void |
fba45db2 | 922 | monitor_resume (int pid, int step, enum target_signal sig) |
c906108c SS |
923 | { |
924 | /* Some monitors require a different command when starting a program */ | |
2df3850c | 925 | monitor_debug ("MON resume\n"); |
c906108c SS |
926 | if (current_monitor->flags & MO_RUN_FIRST_TIME && first_time == 1) |
927 | { | |
928 | first_time = 0; | |
929 | monitor_printf ("run\r"); | |
930 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) | |
c5aa993b | 931 | dump_reg_flag = 1; |
c906108c SS |
932 | return; |
933 | } | |
c906108c SS |
934 | if (step) |
935 | monitor_printf (current_monitor->step); | |
936 | else | |
937 | { | |
938 | if (current_monitor->continue_hook) | |
c5aa993b JM |
939 | (*current_monitor->continue_hook) (); |
940 | else | |
941 | monitor_printf (current_monitor->cont); | |
c906108c SS |
942 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) |
943 | dump_reg_flag = 1; | |
944 | } | |
945 | } | |
946 | ||
947 | /* Parse the output of a register dump command. A monitor specific | |
948 | regexp is used to extract individual register descriptions of the | |
949 | form REG=VAL. Each description is split up into a name and a value | |
950 | string which are passed down to monitor specific code. */ | |
951 | ||
952 | static void | |
fba45db2 | 953 | parse_register_dump (char *buf, int len) |
c906108c | 954 | { |
2df3850c JM |
955 | monitor_debug ("MON Parsing register dump\n"); |
956 | while (1) | |
c906108c SS |
957 | { |
958 | int regnamelen, vallen; | |
959 | char *regname, *val; | |
960 | /* Element 0 points to start of register name, and element 1 | |
c5aa993b | 961 | points to the start of the register value. */ |
c906108c SS |
962 | struct re_registers register_strings; |
963 | ||
964 | memset (®ister_strings, 0, sizeof (struct re_registers)); | |
965 | ||
966 | if (re_search (®ister_pattern, buf, len, 0, len, | |
967 | ®ister_strings) == -1) | |
968 | break; | |
969 | ||
970 | regnamelen = register_strings.end[1] - register_strings.start[1]; | |
971 | regname = buf + register_strings.start[1]; | |
972 | vallen = register_strings.end[2] - register_strings.start[2]; | |
973 | val = buf + register_strings.start[2]; | |
974 | ||
975 | current_monitor->supply_register (regname, regnamelen, val, vallen); | |
976 | ||
977 | buf += register_strings.end[0]; | |
978 | len -= register_strings.end[0]; | |
979 | } | |
980 | } | |
981 | ||
982 | /* Send ^C to target to halt it. Target will respond, and send us a | |
983 | packet. */ | |
984 | ||
985 | static void | |
fba45db2 | 986 | monitor_interrupt (int signo) |
c906108c SS |
987 | { |
988 | /* If this doesn't work, try more severe steps. */ | |
989 | signal (signo, monitor_interrupt_twice); | |
c5aa993b | 990 | |
2df3850c JM |
991 | if (monitor_debug_p || remote_debug) |
992 | fprintf_unfiltered (gdb_stdlog, "monitor_interrupt called\n"); | |
c906108c SS |
993 | |
994 | target_stop (); | |
995 | } | |
996 | ||
997 | /* The user typed ^C twice. */ | |
998 | ||
999 | static void | |
fba45db2 | 1000 | monitor_interrupt_twice (int signo) |
c906108c SS |
1001 | { |
1002 | signal (signo, ofunc); | |
c5aa993b | 1003 | |
c906108c SS |
1004 | monitor_interrupt_query (); |
1005 | ||
1006 | signal (signo, monitor_interrupt); | |
1007 | } | |
1008 | ||
1009 | /* Ask the user what to do when an interrupt is received. */ | |
1010 | ||
1011 | static void | |
fba45db2 | 1012 | monitor_interrupt_query (void) |
c906108c SS |
1013 | { |
1014 | target_terminal_ours (); | |
1015 | ||
1016 | if (query ("Interrupted while waiting for the program.\n\ | |
1017 | Give up (and stop debugging it)? ")) | |
1018 | { | |
1019 | target_mourn_inferior (); | |
1020 | return_to_top_level (RETURN_QUIT); | |
1021 | } | |
1022 | ||
1023 | target_terminal_inferior (); | |
1024 | } | |
1025 | ||
1026 | static void | |
fba45db2 | 1027 | monitor_wait_cleanup (void *old_timeout) |
c906108c | 1028 | { |
c5aa993b | 1029 | timeout = *(int *) old_timeout; |
c906108c SS |
1030 | signal (SIGINT, ofunc); |
1031 | in_monitor_wait = 0; | |
1032 | } | |
1033 | ||
1034 | ||
1035 | ||
c5aa993b JM |
1036 | void |
1037 | monitor_wait_filter (char *buf, | |
1038 | int bufmax, | |
1039 | int *ext_resp_len, | |
1040 | struct target_waitstatus *status | |
1041 | ) | |
c906108c | 1042 | { |
c5aa993b | 1043 | int resp_len; |
c906108c SS |
1044 | do |
1045 | { | |
1046 | resp_len = monitor_expect_prompt (buf, bufmax); | |
c5aa993b | 1047 | *ext_resp_len = resp_len; |
c906108c SS |
1048 | |
1049 | if (resp_len <= 0) | |
1050 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1051 | } | |
1052 | while (resp_len < 0); | |
1053 | ||
1054 | /* Print any output characters that were preceded by ^O. */ | |
1055 | /* FIXME - This would be great as a user settabgle flag */ | |
2df3850c JM |
1056 | if (monitor_debug_p || remote_debug |
1057 | || current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
c906108c SS |
1058 | { |
1059 | int i; | |
1060 | ||
1061 | for (i = 0; i < resp_len - 1; i++) | |
1062 | if (buf[i] == 0x0f) | |
1063 | putchar_unfiltered (buf[++i]); | |
1064 | } | |
1065 | } | |
1066 | ||
1067 | ||
1068 | ||
1069 | /* Wait until the remote machine stops, then return, storing status in | |
1070 | status just as `wait' would. */ | |
1071 | ||
1072 | static int | |
fba45db2 | 1073 | monitor_wait (int pid, struct target_waitstatus *status) |
c906108c SS |
1074 | { |
1075 | int old_timeout = timeout; | |
d4f3574e | 1076 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1077 | int resp_len; |
1078 | struct cleanup *old_chain; | |
1079 | ||
1080 | status->kind = TARGET_WAITKIND_EXITED; | |
1081 | status->value.integer = 0; | |
1082 | ||
1083 | old_chain = make_cleanup (monitor_wait_cleanup, &old_timeout); | |
2df3850c | 1084 | monitor_debug ("MON wait\n"); |
c906108c | 1085 | |
7a292a7a | 1086 | #if 0 |
c5aa993b JM |
1087 | /* This is somthing other than a maintenance command */ |
1088 | in_monitor_wait = 1; | |
c906108c SS |
1089 | timeout = watchdog > 0 ? watchdog : -1; |
1090 | #else | |
2df3850c | 1091 | timeout = -1; /* Don't time out -- user program is running. */ |
c906108c SS |
1092 | #endif |
1093 | ||
1094 | ofunc = (void (*)()) signal (SIGINT, monitor_interrupt); | |
1095 | ||
1096 | if (current_monitor->wait_filter) | |
c5aa993b JM |
1097 | (*current_monitor->wait_filter) (buf, sizeof (buf), &resp_len, status); |
1098 | else | |
1099 | monitor_wait_filter (buf, sizeof (buf), &resp_len, status); | |
1100 | ||
1101 | #if 0 /* Transferred to monitor wait filter */ | |
c906108c SS |
1102 | do |
1103 | { | |
1104 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1105 | ||
1106 | if (resp_len <= 0) | |
1107 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1108 | } | |
1109 | while (resp_len < 0); | |
1110 | ||
1111 | /* Print any output characters that were preceded by ^O. */ | |
1112 | /* FIXME - This would be great as a user settabgle flag */ | |
2df3850c JM |
1113 | if (monitor_debug_p || remote_debug |
1114 | || current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
c906108c SS |
1115 | { |
1116 | int i; | |
1117 | ||
1118 | for (i = 0; i < resp_len - 1; i++) | |
1119 | if (buf[i] == 0x0f) | |
1120 | putchar_unfiltered (buf[++i]); | |
1121 | } | |
c5aa993b | 1122 | #endif |
c906108c SS |
1123 | |
1124 | signal (SIGINT, ofunc); | |
1125 | ||
1126 | timeout = old_timeout; | |
1127 | #if 0 | |
1128 | if (dump_reg_flag && current_monitor->dump_registers) | |
1129 | { | |
1130 | dump_reg_flag = 0; | |
1131 | monitor_printf (current_monitor->dump_registers); | |
1132 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1133 | } | |
1134 | ||
1135 | if (current_monitor->register_pattern) | |
1136 | parse_register_dump (buf, resp_len); | |
1137 | #else | |
2df3850c | 1138 | monitor_debug ("Wait fetching registers after stop\n"); |
c5aa993b JM |
1139 | monitor_dump_regs (); |
1140 | #endif | |
c906108c SS |
1141 | |
1142 | status->kind = TARGET_WAITKIND_STOPPED; | |
1143 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1144 | ||
1145 | discard_cleanups (old_chain); | |
1146 | ||
1147 | in_monitor_wait = 0; | |
1148 | ||
1149 | return inferior_pid; | |
1150 | } | |
1151 | ||
1152 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns | |
1153 | errno value. */ | |
1154 | ||
1155 | static void | |
fba45db2 | 1156 | monitor_fetch_register (int regno) |
c906108c SS |
1157 | { |
1158 | char *name; | |
86110418 MS |
1159 | char *zerobuf; |
1160 | char *regbuf; | |
c906108c SS |
1161 | int i; |
1162 | ||
86110418 MS |
1163 | regbuf = alloca (MAX_REGISTER_RAW_SIZE * 2 + 1); |
1164 | zerobuf = alloca (MAX_REGISTER_RAW_SIZE); | |
1165 | memset (zerobuf, 0, MAX_REGISTER_RAW_SIZE); | |
1166 | ||
c906108c | 1167 | name = current_monitor->regnames[regno]; |
2df3850c | 1168 | monitor_debug ("MON fetchreg %d '%s'\n", regno, name ? name : "(null name)"); |
c906108c | 1169 | |
2df3850c | 1170 | if (!name || (*name == '\0')) |
7a292a7a | 1171 | { |
2df3850c JM |
1172 | monitor_debug ("No register known for %d\n", regno); |
1173 | supply_register (regno, zerobuf); | |
c906108c SS |
1174 | return; |
1175 | } | |
1176 | ||
1177 | /* send the register examine command */ | |
1178 | ||
1179 | monitor_printf (current_monitor->getreg.cmd, name); | |
1180 | ||
1181 | /* If RESP_DELIM is specified, we search for that as a leading | |
1182 | delimiter for the register value. Otherwise, we just start | |
1183 | searching from the start of the buf. */ | |
1184 | ||
1185 | if (current_monitor->getreg.resp_delim) | |
1186 | { | |
2df3850c JM |
1187 | monitor_debug ("EXP getreg.resp_delim\n"); |
1188 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); | |
c906108c SS |
1189 | /* Handle case of first 32 registers listed in pairs. */ |
1190 | if (current_monitor->flags & MO_32_REGS_PAIRED | |
7a292a7a | 1191 | && (regno & 1) != 0 && regno < 32) |
c5aa993b | 1192 | { |
2df3850c | 1193 | monitor_debug ("EXP getreg.resp_delim\n"); |
c906108c SS |
1194 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); |
1195 | } | |
1196 | } | |
1197 | ||
1198 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set */ | |
c5aa993b | 1199 | if (current_monitor->flags & MO_HEX_PREFIX) |
c906108c SS |
1200 | { |
1201 | int c; | |
1202 | c = readchar (timeout); | |
1203 | while (c == ' ') | |
1204 | c = readchar (timeout); | |
1205 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1206 | ; | |
1207 | else | |
c5aa993b JM |
1208 | error ("Bad value returned from monitor while fetching register %x.", |
1209 | regno); | |
c906108c SS |
1210 | } |
1211 | ||
1212 | /* Read upto the maximum number of hex digits for this register, skipping | |
1213 | spaces, but stop reading if something else is seen. Some monitors | |
1214 | like to drop leading zeros. */ | |
1215 | ||
1216 | for (i = 0; i < REGISTER_RAW_SIZE (regno) * 2; i++) | |
1217 | { | |
1218 | int c; | |
1219 | c = readchar (timeout); | |
1220 | while (c == ' ') | |
1221 | c = readchar (timeout); | |
1222 | ||
1223 | if (!isxdigit (c)) | |
1224 | break; | |
1225 | ||
1226 | regbuf[i] = c; | |
1227 | } | |
1228 | ||
1229 | regbuf[i] = '\000'; /* terminate the number */ | |
2df3850c | 1230 | monitor_debug ("REGVAL '%s'\n", regbuf); |
c906108c SS |
1231 | |
1232 | /* If TERM is present, we wait for that to show up. Also, (if TERM | |
1233 | is present), we will send TERM_CMD if that is present. In any | |
1234 | case, we collect all of the output into buf, and then wait for | |
1235 | the normal prompt. */ | |
1236 | ||
1237 | if (current_monitor->getreg.term) | |
1238 | { | |
2df3850c JM |
1239 | monitor_debug ("EXP getreg.term\n"); |
1240 | monitor_expect (current_monitor->getreg.term, NULL, 0); /* get response */ | |
c906108c SS |
1241 | } |
1242 | ||
1243 | if (current_monitor->getreg.term_cmd) | |
c5aa993b | 1244 | { |
2df3850c JM |
1245 | monitor_debug ("EMIT getreg.term.cmd\n"); |
1246 | monitor_printf (current_monitor->getreg.term_cmd); | |
c906108c | 1247 | } |
c5aa993b JM |
1248 | if (!current_monitor->getreg.term || /* Already expected or */ |
1249 | current_monitor->getreg.term_cmd) /* ack expected */ | |
1250 | monitor_expect_prompt (NULL, 0); /* get response */ | |
c906108c SS |
1251 | |
1252 | monitor_supply_register (regno, regbuf); | |
1253 | } | |
1254 | ||
1255 | /* Sometimes, it takes several commands to dump the registers */ | |
1256 | /* This is a primitive for use by variations of monitor interfaces in | |
1257 | case they need to compose the operation. | |
c5aa993b JM |
1258 | */ |
1259 | int | |
1260 | monitor_dump_reg_block (char *block_cmd) | |
c906108c | 1261 | { |
d4f3574e | 1262 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1263 | int resp_len; |
1264 | monitor_printf (block_cmd); | |
1265 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1266 | parse_register_dump (buf, resp_len); | |
c5aa993b | 1267 | return 1; |
c906108c SS |
1268 | } |
1269 | ||
1270 | ||
1271 | /* Read the remote registers into the block regs. */ | |
1272 | /* Call the specific function if it has been provided */ | |
1273 | ||
1274 | static void | |
fba45db2 | 1275 | monitor_dump_regs (void) |
c906108c | 1276 | { |
d4f3574e | 1277 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1278 | int resp_len; |
1279 | if (current_monitor->dumpregs) | |
c5aa993b JM |
1280 | (*(current_monitor->dumpregs)) (); /* call supplied function */ |
1281 | else if (current_monitor->dump_registers) /* default version */ | |
1282 | { | |
1283 | monitor_printf (current_monitor->dump_registers); | |
c906108c SS |
1284 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
1285 | parse_register_dump (buf, resp_len); | |
1286 | } | |
1287 | else | |
c5aa993b | 1288 | abort (); /* Need some way to read registers */ |
c906108c SS |
1289 | } |
1290 | ||
1291 | static void | |
fba45db2 | 1292 | monitor_fetch_registers (int regno) |
c906108c | 1293 | { |
2df3850c | 1294 | monitor_debug ("MON fetchregs\n"); |
c5aa993b | 1295 | if (current_monitor->getreg.cmd) |
c906108c SS |
1296 | { |
1297 | if (regno >= 0) | |
1298 | { | |
1299 | monitor_fetch_register (regno); | |
1300 | return; | |
1301 | } | |
1302 | ||
1303 | for (regno = 0; regno < NUM_REGS; regno++) | |
1304 | monitor_fetch_register (regno); | |
1305 | } | |
c5aa993b JM |
1306 | else |
1307 | { | |
1308 | monitor_dump_regs (); | |
1309 | } | |
c906108c SS |
1310 | } |
1311 | ||
1312 | /* Store register REGNO, or all if REGNO == 0. Return errno value. */ | |
1313 | ||
1314 | static void | |
fba45db2 | 1315 | monitor_store_register (int regno) |
c906108c SS |
1316 | { |
1317 | char *name; | |
d4f3574e | 1318 | ULONGEST val; |
c906108c SS |
1319 | |
1320 | name = current_monitor->regnames[regno]; | |
1321 | if (!name || (*name == '\0')) | |
c5aa993b | 1322 | { |
2df3850c JM |
1323 | monitor_debug ("MON Cannot store unknown register\n"); |
1324 | return; | |
c906108c SS |
1325 | } |
1326 | ||
1327 | val = read_register (regno); | |
5683e87a AC |
1328 | monitor_debug ("MON storeg %d %s\n", regno, |
1329 | phex (val, REGISTER_RAW_SIZE (regno))); | |
c906108c SS |
1330 | |
1331 | /* send the register deposit command */ | |
1332 | ||
2df3850c | 1333 | if (current_monitor->flags & MO_REGISTER_VALUE_FIRST) |
c906108c SS |
1334 | monitor_printf (current_monitor->setreg.cmd, val, name); |
1335 | else if (current_monitor->flags & MO_SETREG_INTERACTIVE) | |
1336 | monitor_printf (current_monitor->setreg.cmd, name); | |
1337 | else | |
1338 | monitor_printf (current_monitor->setreg.cmd, name, val); | |
1339 | ||
1340 | if (current_monitor->setreg.term) | |
c5aa993b | 1341 | { |
2df3850c JM |
1342 | monitor_debug ("EXP setreg.term\n"); |
1343 | monitor_expect (current_monitor->setreg.term, NULL, 0); | |
c906108c | 1344 | if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
2df3850c | 1345 | monitor_printf ("%s\r", paddr_nz (val)); |
c906108c SS |
1346 | monitor_expect_prompt (NULL, 0); |
1347 | } | |
1348 | else | |
1349 | monitor_expect_prompt (NULL, 0); | |
c5aa993b JM |
1350 | if (current_monitor->setreg.term_cmd) /* Mode exit required */ |
1351 | { | |
2df3850c | 1352 | monitor_debug ("EXP setreg_termcmd\n"); |
c5aa993b JM |
1353 | monitor_printf ("%s", current_monitor->setreg.term_cmd); |
1354 | monitor_expect_prompt (NULL, 0); | |
c906108c | 1355 | } |
c5aa993b | 1356 | } /* monitor_store_register */ |
c906108c SS |
1357 | |
1358 | /* Store the remote registers. */ | |
1359 | ||
1360 | static void | |
fba45db2 | 1361 | monitor_store_registers (int regno) |
c906108c SS |
1362 | { |
1363 | if (regno >= 0) | |
1364 | { | |
1365 | monitor_store_register (regno); | |
1366 | return; | |
1367 | } | |
1368 | ||
1369 | for (regno = 0; regno < NUM_REGS; regno++) | |
1370 | monitor_store_register (regno); | |
1371 | } | |
1372 | ||
1373 | /* Get ready to modify the registers array. On machines which store | |
1374 | individual registers, this doesn't need to do anything. On machines | |
1375 | which store all the registers in one fell swoop, this makes sure | |
1376 | that registers contains all the registers from the program being | |
1377 | debugged. */ | |
1378 | ||
1379 | static void | |
fba45db2 | 1380 | monitor_prepare_to_store (void) |
c906108c SS |
1381 | { |
1382 | /* Do nothing, since we can store individual regs */ | |
1383 | } | |
1384 | ||
1385 | static void | |
fba45db2 | 1386 | monitor_files_info (struct target_ops *ops) |
c906108c SS |
1387 | { |
1388 | printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baud_rate); | |
1389 | } | |
1390 | ||
1391 | static int | |
fba45db2 | 1392 | monitor_write_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1393 | { |
c5aa993b | 1394 | unsigned int val, hostval; |
c906108c SS |
1395 | char *cmd; |
1396 | int i; | |
1397 | ||
2df3850c | 1398 | monitor_debug ("MON write %d %s\n", len, paddr (memaddr)); |
c906108c | 1399 | |
2df3850c | 1400 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
c906108c SS |
1401 | memaddr = ADDR_BITS_REMOVE (memaddr); |
1402 | ||
1403 | /* Use memory fill command for leading 0 bytes. */ | |
1404 | ||
1405 | if (current_monitor->fill) | |
1406 | { | |
1407 | for (i = 0; i < len; i++) | |
1408 | if (myaddr[i] != 0) | |
1409 | break; | |
1410 | ||
1411 | if (i > 4) /* More than 4 zeros is worth doing */ | |
1412 | { | |
2df3850c JM |
1413 | monitor_debug ("MON FILL %d\n", i); |
1414 | if (current_monitor->flags & MO_FILL_USES_ADDR) | |
c5aa993b JM |
1415 | monitor_printf (current_monitor->fill, memaddr, (memaddr + i) - 1, 0); |
1416 | else | |
1417 | monitor_printf (current_monitor->fill, memaddr, i, 0); | |
c906108c SS |
1418 | |
1419 | monitor_expect_prompt (NULL, 0); | |
1420 | ||
1421 | return i; | |
1422 | } | |
1423 | } | |
1424 | ||
1425 | #if 0 | |
1426 | /* Can't actually use long longs if VAL is an int (nice idea, though). */ | |
1427 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->setmem.cmdll) | |
1428 | { | |
1429 | len = 8; | |
1430 | cmd = current_monitor->setmem.cmdll; | |
1431 | } | |
1432 | else | |
1433 | #endif | |
1434 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->setmem.cmdl) | |
1435 | { | |
1436 | len = 4; | |
1437 | cmd = current_monitor->setmem.cmdl; | |
1438 | } | |
1439 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->setmem.cmdw) | |
1440 | { | |
1441 | len = 2; | |
1442 | cmd = current_monitor->setmem.cmdw; | |
1443 | } | |
1444 | else | |
1445 | { | |
1446 | len = 1; | |
1447 | cmd = current_monitor->setmem.cmdb; | |
1448 | } | |
1449 | ||
1450 | val = extract_unsigned_integer (myaddr, len); | |
c5aa993b | 1451 | |
c906108c | 1452 | if (len == 4) |
c5aa993b JM |
1453 | { |
1454 | hostval = *(unsigned int *) myaddr; | |
2df3850c | 1455 | monitor_debug ("Hostval(%08x) val(%08x)\n", hostval, val); |
c906108c SS |
1456 | } |
1457 | ||
1458 | ||
1459 | if (current_monitor->flags & MO_NO_ECHO_ON_SETMEM) | |
1460 | monitor_printf_noecho (cmd, memaddr, val); | |
1461 | else if (current_monitor->flags & MO_SETMEM_INTERACTIVE) | |
1462 | { | |
1463 | ||
1464 | monitor_printf_noecho (cmd, memaddr); | |
1465 | ||
1466 | if (current_monitor->setmem.term) | |
c5aa993b | 1467 | { |
2df3850c | 1468 | monitor_debug ("EXP setmem.term"); |
c906108c SS |
1469 | monitor_expect (current_monitor->setmem.term, NULL, 0); |
1470 | monitor_printf ("%x\r", val); | |
1471 | } | |
1472 | if (current_monitor->setmem.term_cmd) | |
c5aa993b JM |
1473 | { /* Emit this to get out of the memory editing state */ |
1474 | monitor_printf ("%s", current_monitor->setmem.term_cmd); | |
c906108c SS |
1475 | /* Drop through to expecting a prompt */ |
1476 | } | |
1477 | } | |
1478 | else | |
1479 | monitor_printf (cmd, memaddr, val); | |
1480 | ||
1481 | monitor_expect_prompt (NULL, 0); | |
1482 | ||
1483 | return len; | |
1484 | } | |
1485 | ||
1486 | ||
1487 | static int | |
fba45db2 | 1488 | monitor_write_even_block (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1489 | { |
c5aa993b JM |
1490 | unsigned int val; |
1491 | int written = 0;; | |
c906108c | 1492 | /* Enter the sub mode */ |
c5aa993b JM |
1493 | monitor_printf (current_monitor->setmem.cmdl, memaddr); |
1494 | monitor_expect_prompt (NULL, 0); | |
1495 | ||
c906108c SS |
1496 | while (len) |
1497 | { | |
c5aa993b JM |
1498 | val = extract_unsigned_integer (myaddr, 4); /* REALLY */ |
1499 | monitor_printf ("%x\r", val); | |
1500 | myaddr += 4; | |
1501 | memaddr += 4; | |
1502 | written += 4; | |
2df3850c | 1503 | monitor_debug (" @ %s\n", paddr (memaddr)); |
c906108c | 1504 | /* If we wanted to, here we could validate the address */ |
2df3850c | 1505 | monitor_expect_prompt (NULL, 0); |
c906108c SS |
1506 | } |
1507 | /* Now exit the sub mode */ | |
1508 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1509 | monitor_expect_prompt (NULL, 0); |
1510 | return written; | |
c906108c SS |
1511 | } |
1512 | ||
1513 | ||
c5aa993b | 1514 | static int |
fba45db2 | 1515 | monitor_write_memory_bytes (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1516 | { |
c5aa993b JM |
1517 | unsigned char val; |
1518 | int written = 0; | |
1519 | if (len == 0) | |
1520 | return 0; | |
c906108c | 1521 | /* Enter the sub mode */ |
c5aa993b JM |
1522 | monitor_printf (current_monitor->setmem.cmdb, memaddr); |
1523 | monitor_expect_prompt (NULL, 0); | |
c906108c SS |
1524 | while (len) |
1525 | { | |
c5aa993b JM |
1526 | val = *myaddr; |
1527 | monitor_printf ("%x\r", val); | |
1528 | myaddr++; | |
1529 | memaddr++; | |
1530 | written++; | |
c906108c | 1531 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1532 | monitor_expect_prompt (NULL, 0); |
1533 | len--; | |
c906108c SS |
1534 | } |
1535 | /* Now exit the sub mode */ | |
1536 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1537 | monitor_expect_prompt (NULL, 0); |
1538 | return written; | |
c906108c SS |
1539 | } |
1540 | ||
1541 | ||
1542 | static void | |
c5aa993b | 1543 | longlongendswap (unsigned char *a) |
c906108c | 1544 | { |
c5aa993b JM |
1545 | int i, j; |
1546 | unsigned char x; | |
1547 | i = 0; | |
1548 | j = 7; | |
c906108c | 1549 | while (i < 4) |
c5aa993b JM |
1550 | { |
1551 | x = *(a + i); | |
1552 | *(a + i) = *(a + j); | |
1553 | *(a + j) = x; | |
1554 | i++, j--; | |
c906108c SS |
1555 | } |
1556 | } | |
1557 | /* Format 32 chars of long long value, advance the pointer */ | |
c5aa993b JM |
1558 | static char *hexlate = "0123456789abcdef"; |
1559 | static char * | |
1560 | longlong_hexchars (unsigned long long value, | |
1561 | char *outbuff) | |
c906108c | 1562 | { |
c5aa993b JM |
1563 | if (value == 0) |
1564 | { | |
1565 | *outbuff++ = '0'; | |
1566 | return outbuff; | |
1567 | } | |
c906108c | 1568 | else |
c5aa993b JM |
1569 | { |
1570 | static unsigned char disbuf[8]; /* disassembly buffer */ | |
1571 | unsigned char *scan, *limit; /* loop controls */ | |
1572 | unsigned char c, nib; | |
1573 | int leadzero = 1; | |
1574 | scan = disbuf; | |
1575 | limit = scan + 8; | |
1576 | { | |
1577 | unsigned long long *dp; | |
1578 | dp = (unsigned long long *) scan; | |
1579 | *dp = value; | |
c906108c | 1580 | } |
c5aa993b | 1581 | longlongendswap (disbuf); /* FIXME: ONly on big endian hosts */ |
c906108c | 1582 | while (scan < limit) |
7a292a7a | 1583 | { |
c5aa993b | 1584 | c = *scan++; /* a byte of our long long value */ |
c906108c | 1585 | if (leadzero) |
7a292a7a SS |
1586 | { |
1587 | if (c == 0) | |
1588 | continue; | |
1589 | else | |
c5aa993b | 1590 | leadzero = 0; /* henceforth we print even zeroes */ |
7a292a7a | 1591 | } |
c5aa993b | 1592 | nib = c >> 4; /* high nibble bits */ |
7a292a7a | 1593 | *outbuff++ = hexlate[nib]; |
c5aa993b | 1594 | nib = c & 0x0f; /* low nibble bits */ |
7a292a7a | 1595 | *outbuff++ = hexlate[nib]; |
c906108c | 1596 | } |
c5aa993b | 1597 | return outbuff; |
c906108c | 1598 | } |
c5aa993b | 1599 | } /* longlong_hexchars */ |
c906108c SS |
1600 | |
1601 | ||
1602 | ||
1603 | /* I am only going to call this when writing virtual byte streams. | |
1604 | Which possably entails endian conversions | |
c5aa993b JM |
1605 | */ |
1606 | static int | |
fba45db2 | 1607 | monitor_write_memory_longlongs (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1608 | { |
c5aa993b JM |
1609 | static char hexstage[20]; /* At least 16 digits required, plus null */ |
1610 | char *endstring; | |
1611 | long long *llptr; | |
1612 | long long value; | |
1613 | int written = 0; | |
1614 | llptr = (unsigned long long *) myaddr; | |
1615 | if (len == 0) | |
1616 | return 0; | |
1617 | monitor_printf (current_monitor->setmem.cmdll, memaddr); | |
1618 | monitor_expect_prompt (NULL, 0); | |
1619 | while (len >= 8) | |
1620 | { | |
1621 | value = *llptr; | |
1622 | endstring = longlong_hexchars (*llptr, hexstage); | |
1623 | *endstring = '\0'; /* NUll terminate for printf */ | |
1624 | monitor_printf ("%s\r", hexstage); | |
1625 | llptr++; | |
1626 | memaddr += 8; | |
1627 | written += 8; | |
c906108c | 1628 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1629 | monitor_expect_prompt (NULL, 0); |
1630 | len -= 8; | |
c906108c SS |
1631 | } |
1632 | /* Now exit the sub mode */ | |
1633 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1634 | monitor_expect_prompt (NULL, 0); |
1635 | return written; | |
1636 | } /* */ | |
c906108c SS |
1637 | |
1638 | ||
1639 | ||
1640 | /* ----- MONITOR_WRITE_MEMORY_BLOCK ---------------------------- */ | |
1641 | /* This is for the large blocks of memory which may occur in downloading. | |
1642 | And for monitors which use interactive entry, | |
1643 | And for monitors which do not have other downloading methods. | |
1644 | Without this, we will end up calling monitor_write_memory many times | |
1645 | and do the entry and exit of the sub mode many times | |
1646 | This currently assumes... | |
c5aa993b JM |
1647 | MO_SETMEM_INTERACTIVE |
1648 | ! MO_NO_ECHO_ON_SETMEM | |
1649 | To use this, the you have to patch the monitor_cmds block with | |
1650 | this function. Otherwise, its not tuned up for use by all | |
1651 | monitor variations. | |
1652 | */ | |
c906108c | 1653 | |
c5aa993b | 1654 | static int |
fba45db2 | 1655 | monitor_write_memory_block (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1656 | { |
c5aa993b JM |
1657 | int written; |
1658 | written = 0; | |
c906108c | 1659 | /* FIXME: This would be a good place to put the zero test */ |
c5aa993b | 1660 | #if 1 |
c906108c | 1661 | if ((len > 8) && (((len & 0x07)) == 0) && current_monitor->setmem.cmdll) |
c5aa993b JM |
1662 | { |
1663 | return monitor_write_memory_longlongs (memaddr, myaddr, len); | |
1664 | } | |
1665 | #endif | |
1666 | #if 0 | |
c906108c SS |
1667 | if (len > 4) |
1668 | { | |
c5aa993b JM |
1669 | int sublen; |
1670 | written = monitor_write_even_block (memaddr, myaddr, len); | |
c906108c | 1671 | /* Adjust calling parameters by written amount */ |
c5aa993b JM |
1672 | memaddr += written; |
1673 | myaddr += written; | |
1674 | len -= written; | |
c906108c SS |
1675 | } |
1676 | #endif | |
c5aa993b JM |
1677 | written = monitor_write_memory_bytes (memaddr, myaddr, len); |
1678 | return written; | |
c906108c SS |
1679 | } |
1680 | ||
1681 | /* This is an alternate form of monitor_read_memory which is used for monitors | |
1682 | which can only read a single byte/word/etc. at a time. */ | |
1683 | ||
1684 | static int | |
fba45db2 | 1685 | monitor_read_memory_single (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c SS |
1686 | { |
1687 | unsigned int val; | |
c5aa993b | 1688 | char membuf[sizeof (int) * 2 + 1]; |
c906108c SS |
1689 | char *p; |
1690 | char *cmd; | |
1691 | int i; | |
1692 | ||
2df3850c | 1693 | monitor_debug ("MON read single\n"); |
c906108c SS |
1694 | #if 0 |
1695 | /* Can't actually use long longs (nice idea, though). In fact, the | |
1696 | call to strtoul below will fail if it tries to convert a value | |
1697 | that's too big to fit in a long. */ | |
1698 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->getmem.cmdll) | |
1699 | { | |
1700 | len = 8; | |
1701 | cmd = current_monitor->getmem.cmdll; | |
1702 | } | |
1703 | else | |
1704 | #endif | |
1705 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->getmem.cmdl) | |
1706 | { | |
1707 | len = 4; | |
1708 | cmd = current_monitor->getmem.cmdl; | |
1709 | } | |
1710 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->getmem.cmdw) | |
1711 | { | |
1712 | len = 2; | |
1713 | cmd = current_monitor->getmem.cmdw; | |
1714 | } | |
1715 | else | |
1716 | { | |
1717 | len = 1; | |
1718 | cmd = current_monitor->getmem.cmdb; | |
1719 | } | |
1720 | ||
1721 | /* Send the examine command. */ | |
1722 | ||
1723 | monitor_printf (cmd, memaddr); | |
1724 | ||
1725 | /* If RESP_DELIM is specified, we search for that as a leading | |
1726 | delimiter for the memory value. Otherwise, we just start | |
1727 | searching from the start of the buf. */ | |
1728 | ||
1729 | if (current_monitor->getmem.resp_delim) | |
c5aa993b | 1730 | { |
2df3850c | 1731 | monitor_debug ("EXP getmem.resp_delim\n"); |
c906108c SS |
1732 | monitor_expect_regexp (&getmem_resp_delim_pattern, NULL, 0); |
1733 | } | |
1734 | ||
1735 | /* Now, read the appropriate number of hex digits for this loc, | |
1736 | skipping spaces. */ | |
1737 | ||
1738 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */ | |
c5aa993b | 1739 | if (current_monitor->flags & MO_HEX_PREFIX) |
c906108c SS |
1740 | { |
1741 | int c; | |
1742 | ||
1743 | c = readchar (timeout); | |
1744 | while (c == ' ') | |
1745 | c = readchar (timeout); | |
1746 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1747 | ; | |
1748 | else | |
2df3850c JM |
1749 | monitor_error ("monitor_read_memory_single", |
1750 | "bad response from monitor", | |
c906108c SS |
1751 | memaddr, i, membuf, c); |
1752 | } | |
1753 | for (i = 0; i < len * 2; i++) | |
1754 | { | |
1755 | int c; | |
1756 | ||
1757 | while (1) | |
1758 | { | |
1759 | c = readchar (timeout); | |
1760 | if (isxdigit (c)) | |
1761 | break; | |
1762 | if (c == ' ') | |
1763 | continue; | |
1764 | ||
2df3850c JM |
1765 | monitor_error ("monitor_read_memory_single", |
1766 | "bad response from monitor", | |
c906108c SS |
1767 | memaddr, i, membuf, c); |
1768 | } | |
1769 | ||
1770 | membuf[i] = c; | |
1771 | } | |
1772 | ||
1773 | membuf[i] = '\000'; /* terminate the number */ | |
1774 | ||
1775 | /* If TERM is present, we wait for that to show up. Also, (if TERM is | |
1776 | present), we will send TERM_CMD if that is present. In any case, we collect | |
1777 | all of the output into buf, and then wait for the normal prompt. */ | |
1778 | ||
1779 | if (current_monitor->getmem.term) | |
1780 | { | |
c5aa993b | 1781 | monitor_expect (current_monitor->getmem.term, NULL, 0); /* get response */ |
c906108c SS |
1782 | |
1783 | if (current_monitor->getmem.term_cmd) | |
1784 | { | |
1785 | monitor_printf (current_monitor->getmem.term_cmd); | |
1786 | monitor_expect_prompt (NULL, 0); | |
1787 | } | |
1788 | } | |
1789 | else | |
c5aa993b | 1790 | monitor_expect_prompt (NULL, 0); /* get response */ |
c906108c SS |
1791 | |
1792 | p = membuf; | |
1793 | val = strtoul (membuf, &p, 16); | |
1794 | ||
1795 | if (val == 0 && membuf == p) | |
2df3850c JM |
1796 | monitor_error ("monitor_read_memory_single", |
1797 | "bad value from monitor", | |
c906108c SS |
1798 | memaddr, 0, membuf, 0); |
1799 | ||
1800 | /* supply register stores in target byte order, so swap here */ | |
1801 | ||
1802 | store_unsigned_integer (myaddr, len, val); | |
1803 | ||
1804 | return len; | |
1805 | } | |
1806 | ||
1807 | /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's | |
1808 | memory at MEMADDR. Returns length moved. Currently, we do no more | |
1809 | than 16 bytes at a time. */ | |
1810 | ||
1811 | static int | |
fba45db2 | 1812 | monitor_read_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c SS |
1813 | { |
1814 | unsigned int val; | |
1815 | char buf[512]; | |
1816 | char *p, *p1; | |
1817 | int resp_len; | |
1818 | int i; | |
1819 | CORE_ADDR dumpaddr; | |
1820 | ||
1821 | if (len <= 0) | |
1822 | { | |
2df3850c | 1823 | monitor_debug ("Zero length call to monitor_read_memory\n"); |
c906108c SS |
1824 | return 0; |
1825 | } | |
1826 | ||
2df3850c JM |
1827 | monitor_debug ("MON read block ta(%s) ha(%lx) %d\n", |
1828 | paddr_nz (memaddr), (long) myaddr, len); | |
c906108c SS |
1829 | |
1830 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1831 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
1832 | ||
1833 | if (current_monitor->flags & MO_GETMEM_READ_SINGLE) | |
1834 | return monitor_read_memory_single (memaddr, myaddr, len); | |
1835 | ||
1836 | len = min (len, 16); | |
1837 | ||
1838 | /* Some dumpers align the first data with the preceeding 16 | |
1839 | byte boundary. Some print blanks and start at the | |
1840 | requested boundary. EXACT_DUMPADDR | |
c5aa993b | 1841 | */ |
c906108c SS |
1842 | |
1843 | dumpaddr = (current_monitor->flags & MO_EXACT_DUMPADDR) | |
c5aa993b | 1844 | ? memaddr : memaddr & ~0x0f; |
c906108c SS |
1845 | |
1846 | /* See if xfer would cross a 16 byte boundary. If so, clip it. */ | |
1847 | if (((memaddr ^ (memaddr + len - 1)) & ~0xf) != 0) | |
1848 | len = ((memaddr + len) & ~0xf) - memaddr; | |
1849 | ||
1850 | /* send the memory examine command */ | |
1851 | ||
1852 | if (current_monitor->flags & MO_GETMEM_NEEDS_RANGE) | |
7a292a7a | 1853 | monitor_printf (current_monitor->getmem.cmdb, memaddr, memaddr + len); |
c906108c SS |
1854 | else if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1855 | monitor_printf (current_monitor->getmem.cmdb, dumpaddr); | |
1856 | else | |
1857 | monitor_printf (current_monitor->getmem.cmdb, memaddr, len); | |
1858 | ||
1859 | /* If TERM is present, we wait for that to show up. Also, (if TERM | |
1860 | is present), we will send TERM_CMD if that is present. In any | |
1861 | case, we collect all of the output into buf, and then wait for | |
1862 | the normal prompt. */ | |
1863 | ||
1864 | if (current_monitor->getmem.term) | |
1865 | { | |
c5aa993b | 1866 | resp_len = monitor_expect (current_monitor->getmem.term, buf, sizeof buf); /* get response */ |
c906108c SS |
1867 | |
1868 | if (resp_len <= 0) | |
2df3850c JM |
1869 | monitor_error ("monitor_read_memory", |
1870 | "excessive response from monitor", | |
c906108c SS |
1871 | memaddr, resp_len, buf, 0); |
1872 | ||
1873 | if (current_monitor->getmem.term_cmd) | |
1874 | { | |
1875 | SERIAL_WRITE (monitor_desc, current_monitor->getmem.term_cmd, | |
1876 | strlen (current_monitor->getmem.term_cmd)); | |
1877 | monitor_expect_prompt (NULL, 0); | |
1878 | } | |
1879 | } | |
1880 | else | |
c5aa993b | 1881 | resp_len = monitor_expect_prompt (buf, sizeof buf); /* get response */ |
c906108c SS |
1882 | |
1883 | p = buf; | |
1884 | ||
1885 | /* If RESP_DELIM is specified, we search for that as a leading | |
1886 | delimiter for the values. Otherwise, we just start searching | |
1887 | from the start of the buf. */ | |
1888 | ||
1889 | if (current_monitor->getmem.resp_delim) | |
1890 | { | |
1891 | int retval, tmp; | |
1892 | struct re_registers resp_strings; | |
2df3850c | 1893 | monitor_debug ("MON getmem.resp_delim %s\n", current_monitor->getmem.resp_delim); |
c906108c SS |
1894 | |
1895 | memset (&resp_strings, 0, sizeof (struct re_registers)); | |
1896 | tmp = strlen (p); | |
1897 | retval = re_search (&getmem_resp_delim_pattern, p, tmp, 0, tmp, | |
1898 | &resp_strings); | |
1899 | ||
1900 | if (retval < 0) | |
2df3850c JM |
1901 | monitor_error ("monitor_read_memory", |
1902 | "bad response from monitor", | |
c906108c SS |
1903 | memaddr, resp_len, buf, 0); |
1904 | ||
1905 | p += resp_strings.end[0]; | |
1906 | #if 0 | |
1907 | p = strstr (p, current_monitor->getmem.resp_delim); | |
1908 | if (!p) | |
2df3850c JM |
1909 | monitor_error ("monitor_read_memory", |
1910 | "bad response from monitor", | |
c906108c SS |
1911 | memaddr, resp_len, buf, 0); |
1912 | p += strlen (current_monitor->getmem.resp_delim); | |
1913 | #endif | |
1914 | } | |
2df3850c | 1915 | monitor_debug ("MON scanning %d ,%lx '%s'\n", len, (long) p, p); |
c906108c SS |
1916 | if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1917 | { | |
c5aa993b JM |
1918 | char c; |
1919 | int fetched = 0; | |
c906108c | 1920 | i = len; |
c5aa993b | 1921 | c = *p; |
c906108c | 1922 | |
c5aa993b JM |
1923 | |
1924 | while (!(c == '\000' || c == '\n' || c == '\r') && i > 0) | |
1925 | { | |
1926 | if (isxdigit (c)) | |
1927 | { | |
1928 | if ((dumpaddr >= memaddr) && (i > 0)) | |
1929 | { | |
1930 | val = fromhex (c) * 16 + fromhex (*(p + 1)); | |
c906108c | 1931 | *myaddr++ = val; |
2df3850c JM |
1932 | if (monitor_debug_p || remote_debug) |
1933 | fprintf_unfiltered (gdb_stdlog, "[%02x]", val); | |
c906108c | 1934 | --i; |
c5aa993b | 1935 | fetched++; |
c906108c SS |
1936 | } |
1937 | ++dumpaddr; | |
1938 | ++p; | |
1939 | } | |
c5aa993b JM |
1940 | ++p; /* skip a blank or other non hex char */ |
1941 | c = *p; | |
c906108c | 1942 | } |
c5aa993b JM |
1943 | if (fetched == 0) |
1944 | error ("Failed to read via monitor"); | |
2df3850c JM |
1945 | if (monitor_debug_p || remote_debug) |
1946 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c5aa993b | 1947 | return fetched; /* Return the number of bytes actually read */ |
c906108c | 1948 | } |
2df3850c | 1949 | monitor_debug ("MON scanning bytes\n"); |
c906108c SS |
1950 | |
1951 | for (i = len; i > 0; i--) | |
1952 | { | |
1953 | /* Skip non-hex chars, but bomb on end of string and newlines */ | |
1954 | ||
1955 | while (1) | |
1956 | { | |
1957 | if (isxdigit (*p)) | |
1958 | break; | |
1959 | ||
1960 | if (*p == '\000' || *p == '\n' || *p == '\r') | |
2df3850c JM |
1961 | monitor_error ("monitor_read_memory", |
1962 | "badly terminated response from monitor", | |
c906108c SS |
1963 | memaddr, resp_len, buf, 0); |
1964 | p++; | |
1965 | } | |
1966 | ||
1967 | val = strtoul (p, &p1, 16); | |
1968 | ||
1969 | if (val == 0 && p == p1) | |
2df3850c JM |
1970 | monitor_error ("monitor_read_memory", |
1971 | "bad value from monitor", | |
c906108c SS |
1972 | memaddr, resp_len, buf, 0); |
1973 | ||
1974 | *myaddr++ = val; | |
1975 | ||
1976 | if (i == 1) | |
1977 | break; | |
1978 | ||
1979 | p = p1; | |
1980 | } | |
1981 | ||
1982 | return len; | |
1983 | } | |
1984 | ||
0e7e8d51 KB |
1985 | /* Transfer LEN bytes between target address MEMADDR and GDB address |
1986 | MYADDR. Returns 0 for success, errno code for failure. TARGET is | |
1987 | unused. */ | |
1988 | ||
c906108c | 1989 | static int |
0e7e8d51 KB |
1990 | monitor_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
1991 | struct target_ops *target) | |
c906108c | 1992 | { |
4930751a C |
1993 | int res; |
1994 | ||
1995 | if (write) | |
1996 | { | |
1997 | if (current_monitor->flags & MO_HAS_BLOCKWRITES) | |
1998 | res = monitor_write_memory_block(memaddr, myaddr, len); | |
1999 | else | |
2000 | res = monitor_write_memory(memaddr, myaddr, len); | |
2001 | } | |
2002 | else | |
2003 | { | |
2004 | res = monitor_read_memory(memaddr, myaddr, len); | |
2005 | } | |
2006 | ||
2007 | return res; | |
c906108c SS |
2008 | } |
2009 | ||
2010 | static void | |
fba45db2 | 2011 | monitor_kill (void) |
c906108c | 2012 | { |
c5aa993b | 2013 | return; /* ignore attempts to kill target system */ |
c906108c SS |
2014 | } |
2015 | ||
2016 | /* All we actually do is set the PC to the start address of exec_bfd, and start | |
2017 | the program at that point. */ | |
2018 | ||
2019 | static void | |
fba45db2 | 2020 | monitor_create_inferior (char *exec_file, char *args, char **env) |
c906108c SS |
2021 | { |
2022 | if (args && (*args != '\000')) | |
2023 | error ("Args are not supported by the monitor."); | |
2024 | ||
2025 | first_time = 1; | |
2026 | clear_proceed_status (); | |
2027 | proceed (bfd_get_start_address (exec_bfd), TARGET_SIGNAL_0, 0); | |
2028 | } | |
2029 | ||
2030 | /* Clean up when a program exits. | |
2031 | The program actually lives on in the remote processor's RAM, and may be | |
2032 | run again without a download. Don't leave it full of breakpoint | |
2033 | instructions. */ | |
2034 | ||
2035 | static void | |
fba45db2 | 2036 | monitor_mourn_inferior (void) |
c906108c SS |
2037 | { |
2038 | unpush_target (targ_ops); | |
2039 | generic_mourn_inferior (); /* Do all the proper things now */ | |
2040 | } | |
2041 | ||
c906108c SS |
2042 | /* Tell the monitor to add a breakpoint. */ |
2043 | ||
2044 | static int | |
fba45db2 | 2045 | monitor_insert_breakpoint (CORE_ADDR addr, char *shadow) |
c906108c SS |
2046 | { |
2047 | int i; | |
2048 | unsigned char *bp; | |
2049 | int bplen; | |
2050 | ||
2df3850c JM |
2051 | monitor_debug ("MON inst bkpt %s\n", paddr (addr)); |
2052 | if (current_monitor->set_break == NULL) | |
c906108c SS |
2053 | error ("No set_break defined for this monitor"); |
2054 | ||
2055 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2056 | addr = ADDR_BITS_REMOVE (addr); | |
2057 | ||
2058 | /* Determine appropriate breakpoint size for this address. */ | |
2059 | bp = memory_breakpoint_from_pc (&addr, &bplen); | |
2060 | ||
9e086581 | 2061 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2062 | { |
2063 | if (breakaddr[i] == 0) | |
2064 | { | |
2065 | breakaddr[i] = addr; | |
2066 | monitor_read_memory (addr, shadow, bplen); | |
2067 | monitor_printf (current_monitor->set_break, addr); | |
2068 | monitor_expect_prompt (NULL, 0); | |
2069 | return 0; | |
2070 | } | |
2071 | } | |
2072 | ||
9e086581 | 2073 | error ("Too many breakpoints (> %d) for monitor.", current_monitor->num_breakpoints); |
c906108c SS |
2074 | } |
2075 | ||
2076 | /* Tell the monitor to remove a breakpoint. */ | |
2077 | ||
2078 | static int | |
fba45db2 | 2079 | monitor_remove_breakpoint (CORE_ADDR addr, char *shadow) |
c906108c SS |
2080 | { |
2081 | int i; | |
2082 | ||
2df3850c JM |
2083 | monitor_debug ("MON rmbkpt %s\n", paddr (addr)); |
2084 | if (current_monitor->clr_break == NULL) | |
c906108c SS |
2085 | error ("No clr_break defined for this monitor"); |
2086 | ||
2087 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2088 | addr = ADDR_BITS_REMOVE (addr); | |
2089 | ||
9e086581 | 2090 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2091 | { |
2092 | if (breakaddr[i] == addr) | |
2093 | { | |
2094 | breakaddr[i] = 0; | |
2095 | /* some monitors remove breakpoints based on the address */ | |
2096 | if (current_monitor->flags & MO_CLR_BREAK_USES_ADDR) | |
2097 | monitor_printf (current_monitor->clr_break, addr); | |
2098 | else if (current_monitor->flags & MO_CLR_BREAK_1_BASED) | |
2099 | monitor_printf (current_monitor->clr_break, i + 1); | |
2100 | else | |
2101 | monitor_printf (current_monitor->clr_break, i); | |
2102 | monitor_expect_prompt (NULL, 0); | |
2103 | return 0; | |
2104 | } | |
2105 | } | |
2106 | fprintf_unfiltered (gdb_stderr, | |
2df3850c JM |
2107 | "Can't find breakpoint associated with 0x%s\n", |
2108 | paddr_nz (addr)); | |
c906108c SS |
2109 | return 1; |
2110 | } | |
2111 | ||
2112 | /* monitor_wait_srec_ack -- wait for the target to send an acknowledgement for | |
2113 | an S-record. Return non-zero if the ACK is received properly. */ | |
2114 | ||
2115 | static int | |
fba45db2 | 2116 | monitor_wait_srec_ack (void) |
c906108c | 2117 | { |
d4f3574e | 2118 | int ch; |
c906108c SS |
2119 | |
2120 | if (current_monitor->flags & MO_SREC_ACK_PLUS) | |
2121 | { | |
2122 | return (readchar (timeout) == '+'); | |
2123 | } | |
2124 | else if (current_monitor->flags & MO_SREC_ACK_ROTATE) | |
2125 | { | |
2126 | /* Eat two backspaces, a "rotating" char (|/-\), and a space. */ | |
2127 | if ((ch = readchar (1)) < 0) | |
2128 | return 0; | |
2129 | if ((ch = readchar (1)) < 0) | |
2130 | return 0; | |
2131 | if ((ch = readchar (1)) < 0) | |
2132 | return 0; | |
2133 | if ((ch = readchar (1)) < 0) | |
2134 | return 0; | |
2135 | } | |
2136 | return 1; | |
2137 | } | |
2138 | ||
2139 | /* monitor_load -- download a file. */ | |
2140 | ||
2141 | static void | |
fba45db2 | 2142 | monitor_load (char *file, int from_tty) |
c906108c | 2143 | { |
2df3850c | 2144 | monitor_debug ("MON load\n"); |
c906108c | 2145 | |
2df3850c | 2146 | if (current_monitor->load_routine) |
c906108c SS |
2147 | current_monitor->load_routine (monitor_desc, file, hashmark); |
2148 | else | |
2149 | { /* The default is ascii S-records */ | |
2150 | int n; | |
2151 | unsigned long load_offset; | |
2152 | char buf[128]; | |
2153 | ||
2154 | /* enable user to specify address for downloading as 2nd arg to load */ | |
2155 | n = sscanf (file, "%s 0x%lx", buf, &load_offset); | |
2156 | if (n > 1) | |
2157 | file = buf; | |
2158 | else | |
2159 | load_offset = 0; | |
2160 | ||
2161 | monitor_printf (current_monitor->load); | |
2162 | if (current_monitor->loadresp) | |
2163 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
2164 | ||
2165 | load_srec (monitor_desc, file, (bfd_vma) load_offset, | |
2166 | 32, SREC_ALL, hashmark, | |
2167 | current_monitor->flags & MO_SREC_ACK ? | |
c5aa993b | 2168 | monitor_wait_srec_ack : NULL); |
c906108c SS |
2169 | |
2170 | monitor_expect_prompt (NULL, 0); | |
2171 | } | |
2172 | ||
2173 | /* Finally, make the PC point at the start address */ | |
2174 | ||
2175 | if (exec_bfd) | |
2176 | write_pc (bfd_get_start_address (exec_bfd)); | |
2177 | ||
2178 | inferior_pid = 0; /* No process now */ | |
2179 | ||
2180 | /* This is necessary because many things were based on the PC at the time that | |
2181 | we attached to the monitor, which is no longer valid now that we have loaded | |
2182 | new code (and just changed the PC). Another way to do this might be to call | |
2183 | normal_stop, except that the stack may not be valid, and things would get | |
2184 | horribly confused... */ | |
2185 | ||
2186 | clear_symtab_users (); | |
2187 | } | |
2188 | ||
2189 | static void | |
fba45db2 | 2190 | monitor_stop (void) |
c906108c | 2191 | { |
2df3850c | 2192 | monitor_debug ("MON stop\n"); |
c906108c SS |
2193 | if ((current_monitor->flags & MO_SEND_BREAK_ON_STOP) != 0) |
2194 | SERIAL_SEND_BREAK (monitor_desc); | |
2195 | if (current_monitor->stop) | |
2196 | monitor_printf_noecho (current_monitor->stop); | |
2197 | } | |
2198 | ||
96baa820 JM |
2199 | /* Put a COMMAND string out to MONITOR. Output from MONITOR is placed |
2200 | in OUTPUT until the prompt is seen. FIXME: We read the characters | |
2201 | ourseleves here cause of a nasty echo. */ | |
c906108c SS |
2202 | |
2203 | static void | |
96baa820 | 2204 | monitor_rcmd (char *command, |
d9fcf2fb | 2205 | struct ui_file *outbuf) |
c906108c SS |
2206 | { |
2207 | char *p; | |
2208 | int resp_len; | |
2209 | char buf[1000]; | |
2210 | ||
2211 | if (monitor_desc == NULL) | |
2212 | error ("monitor target not open."); | |
2213 | ||
2214 | p = current_monitor->prompt; | |
2215 | ||
2216 | /* Send the command. Note that if no args were supplied, then we're | |
2217 | just sending the monitor a newline, which is sometimes useful. */ | |
2218 | ||
96baa820 | 2219 | monitor_printf ("%s\r", (command ? command : "")); |
c906108c SS |
2220 | |
2221 | resp_len = monitor_expect_prompt (buf, sizeof buf); | |
2222 | ||
96baa820 | 2223 | fputs_unfiltered (buf, outbuf); /* Output the response */ |
c906108c SS |
2224 | } |
2225 | ||
2226 | /* Convert hex digit A to a number. */ | |
2227 | ||
2228 | #if 0 | |
2229 | static int | |
fba45db2 | 2230 | from_hex (int a) |
c5aa993b | 2231 | { |
c906108c SS |
2232 | if (a >= '0' && a <= '9') |
2233 | return a - '0'; | |
2234 | if (a >= 'a' && a <= 'f') | |
2235 | return a - 'a' + 10; | |
2236 | if (a >= 'A' && a <= 'F') | |
2237 | return a - 'A' + 10; | |
2238 | ||
2239 | error ("Reply contains invalid hex digit 0x%x", a); | |
2240 | } | |
2241 | #endif | |
2242 | ||
2243 | char * | |
fba45db2 | 2244 | monitor_get_dev_name (void) |
c906108c SS |
2245 | { |
2246 | return dev_name; | |
2247 | } | |
2248 | ||
2249 | static struct target_ops monitor_ops; | |
2250 | ||
2251 | static void | |
2252 | init_base_monitor_ops (void) | |
2253 | { | |
2254 | monitor_ops.to_shortname = NULL; | |
2255 | monitor_ops.to_longname = NULL; | |
2256 | monitor_ops.to_doc = NULL; | |
2257 | monitor_ops.to_open = NULL; | |
2258 | monitor_ops.to_close = monitor_close; | |
2259 | monitor_ops.to_attach = NULL; | |
2260 | monitor_ops.to_post_attach = NULL; | |
2261 | monitor_ops.to_require_attach = NULL; | |
2262 | monitor_ops.to_detach = monitor_detach; | |
2263 | monitor_ops.to_require_detach = NULL; | |
2264 | monitor_ops.to_resume = monitor_resume; | |
2265 | monitor_ops.to_wait = monitor_wait; | |
2266 | monitor_ops.to_post_wait = NULL; | |
2267 | monitor_ops.to_fetch_registers = monitor_fetch_registers; | |
2268 | monitor_ops.to_store_registers = monitor_store_registers; | |
2269 | monitor_ops.to_prepare_to_store = monitor_prepare_to_store; | |
2270 | monitor_ops.to_xfer_memory = monitor_xfer_memory; | |
2271 | monitor_ops.to_files_info = monitor_files_info; | |
2272 | monitor_ops.to_insert_breakpoint = monitor_insert_breakpoint; | |
2273 | monitor_ops.to_remove_breakpoint = monitor_remove_breakpoint; | |
2274 | monitor_ops.to_terminal_init = 0; | |
2275 | monitor_ops.to_terminal_inferior = 0; | |
2276 | monitor_ops.to_terminal_ours_for_output = 0; | |
2277 | monitor_ops.to_terminal_ours = 0; | |
2278 | monitor_ops.to_terminal_info = 0; | |
2279 | monitor_ops.to_kill = monitor_kill; | |
2280 | monitor_ops.to_load = monitor_load; | |
2281 | monitor_ops.to_lookup_symbol = 0; | |
2282 | monitor_ops.to_create_inferior = monitor_create_inferior; | |
2283 | monitor_ops.to_post_startup_inferior = NULL; | |
2284 | monitor_ops.to_acknowledge_created_inferior = NULL; | |
2285 | monitor_ops.to_clone_and_follow_inferior = NULL; | |
2286 | monitor_ops.to_post_follow_inferior_by_clone = NULL; | |
2287 | monitor_ops.to_insert_fork_catchpoint = NULL; | |
2288 | monitor_ops.to_remove_fork_catchpoint = NULL; | |
2289 | monitor_ops.to_insert_vfork_catchpoint = NULL; | |
2290 | monitor_ops.to_remove_vfork_catchpoint = NULL; | |
2291 | monitor_ops.to_has_forked = NULL; | |
2292 | monitor_ops.to_has_vforked = NULL; | |
2293 | monitor_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
2294 | monitor_ops.to_post_follow_vfork = NULL; | |
2295 | monitor_ops.to_insert_exec_catchpoint = NULL; | |
2296 | monitor_ops.to_remove_exec_catchpoint = NULL; | |
2297 | monitor_ops.to_has_execd = NULL; | |
2298 | monitor_ops.to_reported_exec_events_per_exec_call = NULL; | |
2299 | monitor_ops.to_has_exited = NULL; | |
2300 | monitor_ops.to_mourn_inferior = monitor_mourn_inferior; | |
2301 | monitor_ops.to_can_run = 0; | |
2302 | monitor_ops.to_notice_signals = 0; | |
2303 | monitor_ops.to_thread_alive = 0; | |
2304 | monitor_ops.to_stop = monitor_stop; | |
96baa820 | 2305 | monitor_ops.to_rcmd = monitor_rcmd; |
c906108c SS |
2306 | monitor_ops.to_pid_to_exec_file = NULL; |
2307 | monitor_ops.to_core_file_to_sym_file = NULL; | |
2308 | monitor_ops.to_stratum = process_stratum; | |
2309 | monitor_ops.DONT_USE = 0; | |
2310 | monitor_ops.to_has_all_memory = 1; | |
2311 | monitor_ops.to_has_memory = 1; | |
2312 | monitor_ops.to_has_stack = 1; | |
2313 | monitor_ops.to_has_registers = 1; | |
2314 | monitor_ops.to_has_execution = 1; | |
2315 | monitor_ops.to_sections = 0; | |
2316 | monitor_ops.to_sections_end = 0; | |
2317 | monitor_ops.to_magic = OPS_MAGIC; | |
c5aa993b | 2318 | } /* init_base_monitor_ops */ |
c906108c SS |
2319 | |
2320 | /* Init the target_ops structure pointed at by OPS */ | |
2321 | ||
2322 | void | |
fba45db2 | 2323 | init_monitor_ops (struct target_ops *ops) |
c906108c SS |
2324 | { |
2325 | if (monitor_ops.to_magic != OPS_MAGIC) | |
2326 | init_base_monitor_ops (); | |
2327 | ||
2328 | memcpy (ops, &monitor_ops, sizeof monitor_ops); | |
2329 | } | |
2330 | ||
2331 | /* Define additional commands that are usually only used by monitors. */ | |
2332 | ||
2333 | void | |
fba45db2 | 2334 | _initialize_remote_monitors (void) |
c906108c SS |
2335 | { |
2336 | init_base_monitor_ops (); | |
2337 | add_show_from_set (add_set_cmd ("hash", no_class, var_boolean, | |
c5aa993b | 2338 | (char *) &hashmark, |
c906108c SS |
2339 | "Set display of activity while downloading a file.\n\ |
2340 | When enabled, a hashmark \'#\' is displayed.", | |
c5aa993b | 2341 | &setlist), |
c906108c | 2342 | &showlist); |
2df3850c | 2343 | |
2df3850c | 2344 | add_show_from_set |
5d161b24 | 2345 | (add_set_cmd ("monitor", no_class, var_zinteger, |
2df3850c JM |
2346 | (char *) &monitor_debug_p, |
2347 | "Set debugging of remote monitor communication.\n\ | |
2348 | When enabled, communication between GDB and the remote monitor\n\ | |
5d161b24 DB |
2349 | is displayed.", &setdebuglist), |
2350 | &showdebuglist); | |
c906108c | 2351 | } |