Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Remote debugging interface for boot monitors, for GDB. |
29e57380 | 2 | Copyright 1990-1993, 1995-1997, 1999-2000, 2001 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" | |
c906108c SS |
43 | #include <signal.h> |
44 | #include <ctype.h> | |
45 | #include "gdb_string.h" | |
46 | #include <sys/types.h> | |
47 | #include "command.h" | |
48 | #include "serial.h" | |
49 | #include "monitor.h" | |
50 | #include "gdbcmd.h" | |
51 | #include "inferior.h" | |
88987551 | 52 | #include "gdb_regex.h" |
c906108c SS |
53 | #include "srec.h" |
54 | ||
55 | static char *dev_name; | |
56 | static struct target_ops *targ_ops; | |
57 | ||
a14ed312 | 58 | static void monitor_vsprintf (char *sndbuf, char *pattern, va_list args); |
c906108c | 59 | |
a14ed312 | 60 | static int readchar (int timeout); |
c906108c | 61 | |
a14ed312 KB |
62 | static void monitor_fetch_register (int regno); |
63 | static void monitor_store_register (int regno); | |
c906108c | 64 | |
2df3850c JM |
65 | static void monitor_printable_string (char *newstr, char *oldstr, int len); |
66 | static void monitor_error (char *function, char *message, CORE_ADDR memaddr, int len, char *string, int final_char); | |
a14ed312 KB |
67 | static void monitor_detach (char *args, int from_tty); |
68 | static void monitor_resume (int pid, int step, enum target_signal sig); | |
69 | static void monitor_interrupt (int signo); | |
70 | static void monitor_interrupt_twice (int signo); | |
71 | static void monitor_interrupt_query (void); | |
72 | static void monitor_wait_cleanup (void *old_timeout); | |
73 | ||
74 | static int monitor_wait (int pid, struct target_waitstatus *status); | |
75 | static void monitor_fetch_registers (int regno); | |
76 | static void monitor_store_registers (int regno); | |
77 | static void monitor_prepare_to_store (void); | |
78 | static int monitor_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, | |
29e57380 C |
79 | int write, |
80 | struct mem_attrib *attrib, | |
81 | struct target_ops *target); | |
a14ed312 KB |
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 | ||
c5aa993b JM |
133 | static int first_time = 0; /* is this the first time we're executing after |
134 | gaving created the child proccess? */ | |
c906108c | 135 | |
d4f3574e SS |
136 | #define TARGET_BUF_SIZE 2048 |
137 | ||
2df3850c JM |
138 | /* Monitor specific debugging information. Typically only useful to |
139 | the developer of a new monitor interface. */ | |
c906108c | 140 | |
2df3850c JM |
141 | static void monitor_debug (const char *fmt, ...) ATTR_FORMAT(printf, 1, 2); |
142 | ||
143 | static int monitor_debug_p = 0; | |
144 | ||
145 | /* NOTE: This file alternates between monitor_debug_p and remote_debug | |
146 | when determining if debug information is printed. Perhaphs this | |
147 | could be simplified. */ | |
148 | ||
149 | static void | |
150 | monitor_debug (const char *fmt, ...) | |
151 | { | |
152 | if (monitor_debug_p) | |
153 | { | |
154 | va_list args; | |
155 | va_start (args, fmt); | |
156 | vfprintf_filtered (gdb_stdlog, fmt, args); | |
157 | va_end (args); | |
158 | } | |
159 | } | |
160 | ||
161 | ||
162 | /* Convert a string into a printable representation, Return # byte in | |
163 | the new string. When LEN is >0 it specifies the size of the | |
164 | string. Otherwize strlen(oldstr) is used. */ | |
165 | ||
166 | static void | |
167 | monitor_printable_string (char *newstr, char *oldstr, int len) | |
c906108c | 168 | { |
c906108c | 169 | int ch; |
2df3850c JM |
170 | int i; |
171 | ||
172 | if (len <= 0) | |
173 | len = strlen (oldstr); | |
c906108c | 174 | |
2df3850c | 175 | for (i = 0; i < len; i++) |
c906108c | 176 | { |
2df3850c | 177 | ch = oldstr[i]; |
c906108c | 178 | switch (ch) |
c5aa993b | 179 | { |
c906108c SS |
180 | default: |
181 | if (isprint (ch)) | |
182 | *newstr++ = ch; | |
183 | ||
184 | else | |
185 | { | |
186 | sprintf (newstr, "\\x%02x", ch & 0xff); | |
187 | newstr += 4; | |
188 | } | |
189 | break; | |
190 | ||
c5aa993b JM |
191 | case '\\': |
192 | *newstr++ = '\\'; | |
193 | *newstr++ = '\\'; | |
194 | break; | |
195 | case '\b': | |
196 | *newstr++ = '\\'; | |
197 | *newstr++ = 'b'; | |
198 | break; | |
199 | case '\f': | |
200 | *newstr++ = '\\'; | |
201 | *newstr++ = 't'; | |
202 | break; | |
203 | case '\n': | |
204 | *newstr++ = '\\'; | |
205 | *newstr++ = 'n'; | |
206 | break; | |
207 | case '\r': | |
208 | *newstr++ = '\\'; | |
209 | *newstr++ = 'r'; | |
210 | break; | |
211 | case '\t': | |
212 | *newstr++ = '\\'; | |
213 | *newstr++ = 't'; | |
214 | break; | |
215 | case '\v': | |
216 | *newstr++ = '\\'; | |
217 | *newstr++ = 'v'; | |
218 | break; | |
219 | } | |
c906108c SS |
220 | } |
221 | ||
222 | *newstr++ = '\0'; | |
c906108c SS |
223 | } |
224 | ||
225 | /* Print monitor errors with a string, converting the string to printable | |
226 | representation. */ | |
227 | ||
228 | static void | |
2df3850c JM |
229 | monitor_error (char *function, char *message, |
230 | CORE_ADDR memaddr, int len, char *string, int final_char) | |
c906108c | 231 | { |
c5aa993b | 232 | int real_len = (len == 0 && string != (char *) 0) ? strlen (string) : len; |
c906108c | 233 | char *safe_string = alloca ((real_len * 4) + 1); |
2df3850c | 234 | monitor_printable_string (safe_string, string, real_len); |
c906108c SS |
235 | |
236 | if (final_char) | |
2df3850c | 237 | error ("%s (0x%s): %s: %s%c", function, paddr_nz (memaddr), message, safe_string, final_char); |
c906108c | 238 | else |
2df3850c | 239 | error ("%s (0x%s): %s: %s", function, paddr_nz (memaddr), message, safe_string); |
c906108c SS |
240 | } |
241 | ||
242 | /* Convert hex digit A to a number. */ | |
243 | ||
244 | static int | |
fba45db2 | 245 | fromhex (int a) |
c906108c SS |
246 | { |
247 | if (a >= '0' && a <= '9') | |
248 | return a - '0'; | |
249 | else if (a >= 'a' && a <= 'f') | |
250 | return a - 'a' + 10; | |
c5aa993b JM |
251 | else if (a >= 'A' && a <= 'F') |
252 | return a - 'A' + 10; | |
c906108c | 253 | else |
c5aa993b | 254 | error ("Invalid hex digit %d", a); |
c906108c SS |
255 | } |
256 | ||
257 | /* monitor_vsprintf - similar to vsprintf but handles 64-bit addresses | |
258 | ||
259 | This function exists to get around the problem that many host platforms | |
260 | don't have a printf that can print 64-bit addresses. The %A format | |
261 | specification is recognized as a special case, and causes the argument | |
262 | to be printed as a 64-bit hexadecimal address. | |
263 | ||
264 | Only format specifiers of the form "[0-9]*[a-z]" are recognized. | |
265 | If it is a '%s' format, the argument is a string; otherwise the | |
266 | argument is assumed to be a long integer. | |
267 | ||
268 | %% is also turned into a single %. | |
c5aa993b JM |
269 | */ |
270 | ||
c906108c | 271 | static void |
fba45db2 | 272 | monitor_vsprintf (char *sndbuf, char *pattern, va_list args) |
c906108c SS |
273 | { |
274 | char format[10]; | |
275 | char fmt; | |
276 | char *p; | |
277 | int i; | |
278 | long arg_int; | |
279 | CORE_ADDR arg_addr; | |
280 | char *arg_string; | |
281 | ||
282 | for (p = pattern; *p; p++) | |
283 | { | |
284 | if (*p == '%') | |
285 | { | |
286 | /* Copy the format specifier to a separate buffer. */ | |
287 | format[0] = *p++; | |
288 | for (i = 1; *p >= '0' && *p <= '9' && i < (int) sizeof (format) - 2; | |
289 | i++, p++) | |
290 | format[i] = *p; | |
291 | format[i] = fmt = *p; | |
c5aa993b | 292 | format[i + 1] = '\0'; |
c906108c SS |
293 | |
294 | /* Fetch the next argument and print it. */ | |
295 | switch (fmt) | |
296 | { | |
297 | case '%': | |
298 | strcpy (sndbuf, "%"); | |
299 | break; | |
300 | case 'A': | |
301 | arg_addr = va_arg (args, CORE_ADDR); | |
302 | strcpy (sndbuf, paddr_nz (arg_addr)); | |
303 | break; | |
304 | case 's': | |
305 | arg_string = va_arg (args, char *); | |
306 | sprintf (sndbuf, format, arg_string); | |
307 | break; | |
308 | default: | |
309 | arg_int = va_arg (args, long); | |
310 | sprintf (sndbuf, format, arg_int); | |
311 | break; | |
312 | } | |
313 | sndbuf += strlen (sndbuf); | |
314 | } | |
315 | else | |
316 | *sndbuf++ = *p; | |
317 | } | |
318 | *sndbuf = '\0'; | |
319 | } | |
320 | ||
321 | ||
322 | /* monitor_printf_noecho -- Send data to monitor, but don't expect an echo. | |
323 | Works just like printf. */ | |
324 | ||
325 | void | |
c5aa993b | 326 | monitor_printf_noecho (char *pattern,...) |
c906108c SS |
327 | { |
328 | va_list args; | |
329 | char sndbuf[2000]; | |
330 | int len; | |
331 | ||
c906108c | 332 | va_start (args, pattern); |
c906108c SS |
333 | |
334 | monitor_vsprintf (sndbuf, pattern, args); | |
335 | ||
336 | len = strlen (sndbuf); | |
337 | if (len + 1 > sizeof sndbuf) | |
338 | abort (); | |
339 | ||
2df3850c | 340 | if (monitor_debug_p) |
c906108c SS |
341 | { |
342 | char *safe_string = (char *) alloca ((strlen (sndbuf) * 4) + 1); | |
2df3850c JM |
343 | monitor_printable_string (safe_string, sndbuf, 0); |
344 | fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string); | |
c906108c | 345 | } |
c5aa993b | 346 | |
c906108c SS |
347 | monitor_write (sndbuf, len); |
348 | } | |
349 | ||
350 | /* monitor_printf -- Send data to monitor and check the echo. Works just like | |
351 | printf. */ | |
352 | ||
353 | void | |
c5aa993b | 354 | monitor_printf (char *pattern,...) |
c906108c SS |
355 | { |
356 | va_list args; | |
357 | char sndbuf[2000]; | |
358 | int len; | |
359 | ||
c906108c | 360 | va_start (args, pattern); |
c906108c SS |
361 | |
362 | monitor_vsprintf (sndbuf, pattern, args); | |
363 | ||
364 | len = strlen (sndbuf); | |
365 | if (len + 1 > sizeof sndbuf) | |
366 | abort (); | |
367 | ||
2df3850c | 368 | if (monitor_debug_p) |
c906108c SS |
369 | { |
370 | char *safe_string = (char *) alloca ((len * 4) + 1); | |
2df3850c JM |
371 | monitor_printable_string (safe_string, sndbuf, 0); |
372 | fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string); | |
c906108c SS |
373 | } |
374 | ||
375 | monitor_write (sndbuf, len); | |
376 | ||
377 | /* We used to expect that the next immediate output was the characters we | |
378 | just output, but sometimes some extra junk appeared before the characters | |
379 | we expected, like an extra prompt, or a portmaster sending telnet negotiations. | |
380 | So, just start searching for what we sent, and skip anything unknown. */ | |
2df3850c JM |
381 | monitor_debug ("ExpectEcho\n"); |
382 | monitor_expect (sndbuf, (char *) 0, 0); | |
c906108c SS |
383 | } |
384 | ||
385 | ||
386 | /* Write characters to the remote system. */ | |
387 | ||
388 | void | |
fba45db2 | 389 | monitor_write (char *buf, int buflen) |
c906108c | 390 | { |
c5aa993b | 391 | if (SERIAL_WRITE (monitor_desc, buf, buflen)) |
c906108c SS |
392 | fprintf_unfiltered (gdb_stderr, "SERIAL_WRITE failed: %s\n", |
393 | safe_strerror (errno)); | |
394 | } | |
395 | ||
396 | ||
397 | /* Read a binary character from the remote system, doing all the fancy | |
398 | timeout stuff, but without interpreting the character in any way, | |
399 | and without printing remote debug information. */ | |
400 | ||
401 | int | |
fba45db2 | 402 | monitor_readchar (void) |
c906108c SS |
403 | { |
404 | int c; | |
405 | int looping; | |
406 | ||
407 | do | |
408 | { | |
409 | looping = 0; | |
410 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
411 | ||
412 | if (c >= 0) | |
c5aa993b | 413 | c &= 0xff; /* don't lose bit 7 */ |
c906108c SS |
414 | } |
415 | while (looping); | |
416 | ||
417 | if (c >= 0) | |
418 | return c; | |
419 | ||
420 | if (c == SERIAL_TIMEOUT) | |
c5aa993b | 421 | error ("Timeout reading from remote system."); |
c906108c SS |
422 | |
423 | perror_with_name ("remote-monitor"); | |
424 | } | |
425 | ||
426 | ||
427 | /* Read a character from the remote system, doing all the fancy | |
428 | timeout stuff. */ | |
429 | ||
430 | static int | |
fba45db2 | 431 | readchar (int timeout) |
c906108c SS |
432 | { |
433 | int c; | |
c5aa993b JM |
434 | static enum |
435 | { | |
436 | last_random, last_nl, last_cr, last_crnl | |
437 | } | |
438 | state = last_random; | |
c906108c SS |
439 | int looping; |
440 | ||
441 | do | |
442 | { | |
443 | looping = 0; | |
444 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
445 | ||
446 | if (c >= 0) | |
447 | { | |
448 | c &= 0x7f; | |
c906108c SS |
449 | /* This seems to interfere with proper function of the |
450 | input stream */ | |
2df3850c | 451 | if (monitor_debug_p || remote_debug) |
c906108c SS |
452 | { |
453 | char buf[2]; | |
454 | buf[0] = c; | |
455 | buf[1] = '\0'; | |
456 | puts_debug ("read -->", buf, "<--"); | |
457 | } | |
c5aa993b | 458 | |
c906108c SS |
459 | } |
460 | ||
461 | /* Canonicialize \n\r combinations into one \r */ | |
462 | if ((current_monitor->flags & MO_HANDLE_NL) != 0) | |
463 | { | |
464 | if ((c == '\r' && state == last_nl) | |
465 | || (c == '\n' && state == last_cr)) | |
466 | { | |
467 | state = last_crnl; | |
468 | looping = 1; | |
469 | } | |
470 | else if (c == '\r') | |
471 | state = last_cr; | |
472 | else if (c != '\n') | |
473 | state = last_random; | |
474 | else | |
475 | { | |
476 | state = last_nl; | |
477 | c = '\r'; | |
478 | } | |
479 | } | |
480 | } | |
481 | while (looping); | |
482 | ||
483 | if (c >= 0) | |
484 | return c; | |
485 | ||
486 | if (c == SERIAL_TIMEOUT) | |
7a292a7a | 487 | #if 0 |
c906108c SS |
488 | /* I fail to see how detaching here can be useful */ |
489 | if (in_monitor_wait) /* Watchdog went off */ | |
490 | { | |
491 | target_mourn_inferior (); | |
492 | error ("GDB serial timeout has expired. Target detached.\n"); | |
493 | } | |
494 | else | |
495 | #endif | |
496 | error ("Timeout reading from remote system."); | |
497 | ||
498 | perror_with_name ("remote-monitor"); | |
499 | } | |
500 | ||
501 | /* Scan input from the remote system, until STRING is found. If BUF is non- | |
502 | zero, then collect input until we have collected either STRING or BUFLEN-1 | |
503 | chars. In either case we terminate BUF with a 0. If input overflows BUF | |
504 | because STRING can't be found, return -1, else return number of chars in BUF | |
505 | (minus the terminating NUL). Note that in the non-overflow case, STRING | |
506 | will be at the end of BUF. */ | |
507 | ||
508 | int | |
fba45db2 | 509 | monitor_expect (char *string, char *buf, int buflen) |
c906108c SS |
510 | { |
511 | char *p = string; | |
512 | int obuflen = buflen; | |
513 | int c; | |
514 | extern struct target_ops *targ_ops; | |
515 | ||
2df3850c | 516 | if (monitor_debug_p) |
c906108c SS |
517 | { |
518 | char *safe_string = (char *) alloca ((strlen (string) * 4) + 1); | |
2df3850c JM |
519 | monitor_printable_string (safe_string, string, 0); |
520 | fprintf_unfiltered (gdb_stdlog, "MON Expecting '%s'\n", safe_string); | |
c906108c SS |
521 | } |
522 | ||
8edbea78 | 523 | immediate_quit++; |
c906108c SS |
524 | while (1) |
525 | { | |
526 | if (buf) | |
527 | { | |
528 | if (buflen < 2) | |
529 | { | |
530 | *buf = '\000'; | |
8edbea78 | 531 | immediate_quit--; |
c906108c SS |
532 | return -1; |
533 | } | |
534 | ||
535 | c = readchar (timeout); | |
536 | if (c == '\000') | |
537 | continue; | |
538 | *buf++ = c; | |
539 | buflen--; | |
540 | } | |
541 | else | |
542 | c = readchar (timeout); | |
543 | ||
544 | /* Don't expect any ^C sent to be echoed */ | |
c5aa993b | 545 | |
c906108c SS |
546 | if (*p == '\003' || c == *p) |
547 | { | |
548 | p++; | |
549 | if (*p == '\0') | |
550 | { | |
8edbea78 | 551 | immediate_quit--; |
c906108c SS |
552 | |
553 | if (buf) | |
554 | { | |
555 | *buf++ = '\000'; | |
556 | return obuflen - buflen; | |
557 | } | |
558 | else | |
559 | return 0; | |
560 | } | |
561 | } | |
562 | else if ((c == '\021' || c == '\023') && | |
563 | (STREQ (targ_ops->to_shortname, "m32r") | |
564 | || STREQ (targ_ops->to_shortname, "mon2000"))) | |
c5aa993b | 565 | { /* m32r monitor emits random DC1/DC3 chars */ |
c906108c SS |
566 | continue; |
567 | } | |
568 | else | |
569 | { | |
a0b3c4fd JM |
570 | /* We got a character that doesn't match the string. We need to |
571 | back up p, but how far? If we're looking for "..howdy" and the | |
572 | monitor sends "...howdy"? There's certainly a match in there, | |
573 | but when we receive the third ".", we won't find it if we just | |
574 | restart the matching at the beginning of the string. | |
575 | ||
576 | This is a Boyer-Moore kind of situation. We want to reset P to | |
577 | the end of the longest prefix of STRING that is a suffix of | |
578 | what we've read so far. In the example above, that would be | |
579 | ".." --- the longest prefix of "..howdy" that is a suffix of | |
580 | "...". This longest prefix could be the empty string, if C | |
581 | is nowhere to be found in STRING. | |
582 | ||
583 | If this longest prefix is not the empty string, it must contain | |
584 | C, so let's search from the end of STRING for instances of C, | |
585 | and see if the portion of STRING before that is a suffix of | |
586 | what we read before C. Actually, we can search backwards from | |
587 | p, since we know no prefix can be longer than that. | |
588 | ||
589 | Note that we can use STRING itself, along with C, as a record | |
590 | of what we've received so far. :) */ | |
591 | int i; | |
592 | ||
593 | for (i = (p - string) - 1; i >= 0; i--) | |
594 | if (string[i] == c) | |
595 | { | |
596 | /* Is this prefix a suffix of what we've read so far? | |
597 | In other words, does | |
598 | string[0 .. i-1] == string[p - i, p - 1]? */ | |
599 | if (! memcmp (string, p - i, i)) | |
600 | { | |
601 | p = string + i + 1; | |
602 | break; | |
603 | } | |
604 | } | |
605 | if (i < 0) | |
606 | p = string; | |
c906108c SS |
607 | } |
608 | } | |
609 | } | |
610 | ||
611 | /* Search for a regexp. */ | |
612 | ||
613 | static int | |
fba45db2 | 614 | monitor_expect_regexp (struct re_pattern_buffer *pat, char *buf, int buflen) |
c906108c SS |
615 | { |
616 | char *mybuf; | |
617 | char *p; | |
2df3850c | 618 | monitor_debug ("MON Expecting regexp\n"); |
c906108c SS |
619 | if (buf) |
620 | mybuf = buf; | |
621 | else | |
622 | { | |
d4f3574e SS |
623 | mybuf = alloca (TARGET_BUF_SIZE); |
624 | buflen = TARGET_BUF_SIZE; | |
c906108c SS |
625 | } |
626 | ||
627 | p = mybuf; | |
628 | while (1) | |
629 | { | |
630 | int retval; | |
631 | ||
632 | if (p - mybuf >= buflen) | |
633 | { /* Buffer about to overflow */ | |
634 | ||
635 | /* On overflow, we copy the upper half of the buffer to the lower half. Not | |
636 | great, but it usually works... */ | |
637 | ||
638 | memcpy (mybuf, mybuf + buflen / 2, buflen / 2); | |
639 | p = mybuf + buflen / 2; | |
640 | } | |
641 | ||
642 | *p++ = readchar (timeout); | |
643 | ||
644 | retval = re_search (pat, mybuf, p - mybuf, 0, p - mybuf, NULL); | |
645 | if (retval >= 0) | |
646 | return 1; | |
647 | } | |
648 | } | |
649 | ||
650 | /* Keep discarding input until we see the MONITOR prompt. | |
651 | ||
652 | The convention for dealing with the prompt is that you | |
653 | o give your command | |
654 | o *then* wait for the prompt. | |
655 | ||
656 | Thus the last thing that a procedure does with the serial line will | |
657 | be an monitor_expect_prompt(). Exception: monitor_resume does not | |
658 | wait for the prompt, because the terminal is being handed over to | |
659 | the inferior. However, the next thing which happens after that is | |
660 | a monitor_wait which does wait for the prompt. Note that this | |
661 | includes abnormal exit, e.g. error(). This is necessary to prevent | |
662 | getting into states from which we can't recover. */ | |
663 | ||
664 | int | |
fba45db2 | 665 | monitor_expect_prompt (char *buf, int buflen) |
c906108c | 666 | { |
2df3850c JM |
667 | monitor_debug ("MON Expecting prompt\n"); |
668 | return monitor_expect (current_monitor->prompt, buf, buflen); | |
c906108c SS |
669 | } |
670 | ||
671 | /* Get N 32-bit words from remote, each preceded by a space, and put | |
672 | them in registers starting at REGNO. */ | |
673 | ||
674 | #if 0 | |
675 | static unsigned long | |
fba45db2 | 676 | get_hex_word (void) |
c906108c SS |
677 | { |
678 | unsigned long val; | |
679 | int i; | |
680 | int ch; | |
681 | ||
682 | do | |
683 | ch = readchar (timeout); | |
c5aa993b | 684 | while (isspace (ch)); |
c906108c SS |
685 | |
686 | val = from_hex (ch); | |
687 | ||
688 | for (i = 7; i >= 1; i--) | |
689 | { | |
690 | ch = readchar (timeout); | |
691 | if (!isxdigit (ch)) | |
692 | break; | |
693 | val = (val << 4) | from_hex (ch); | |
694 | } | |
695 | ||
696 | return val; | |
697 | } | |
698 | #endif | |
699 | ||
700 | static void | |
fba45db2 KB |
701 | compile_pattern (char *pattern, struct re_pattern_buffer *compiled_pattern, |
702 | char *fastmap) | |
c906108c SS |
703 | { |
704 | int tmp; | |
705 | const char *val; | |
706 | ||
707 | compiled_pattern->fastmap = fastmap; | |
708 | ||
709 | tmp = re_set_syntax (RE_SYNTAX_EMACS); | |
710 | val = re_compile_pattern (pattern, | |
711 | strlen (pattern), | |
712 | compiled_pattern); | |
713 | re_set_syntax (tmp); | |
714 | ||
715 | if (val) | |
716 | error ("compile_pattern: Can't compile pattern string `%s': %s!", pattern, val); | |
717 | ||
718 | if (fastmap) | |
719 | re_compile_fastmap (compiled_pattern); | |
720 | } | |
721 | ||
722 | /* Open a connection to a remote debugger. NAME is the filename used | |
723 | for communication. */ | |
724 | ||
725 | void | |
fba45db2 | 726 | monitor_open (char *args, struct monitor_ops *mon_ops, int from_tty) |
c906108c SS |
727 | { |
728 | char *name; | |
729 | char **p; | |
730 | ||
731 | if (mon_ops->magic != MONITOR_OPS_MAGIC) | |
732 | error ("Magic number of monitor_ops struct wrong."); | |
733 | ||
734 | targ_ops = mon_ops->target; | |
735 | name = targ_ops->to_shortname; | |
736 | ||
737 | if (!args) | |
738 | error ("Use `target %s DEVICE-NAME' to use a serial port, or \n\ | |
739 | `target %s HOST-NAME:PORT-NUMBER' to use a network connection.", name, name); | |
740 | ||
741 | target_preopen (from_tty); | |
742 | ||
743 | /* Setup pattern for register dump */ | |
744 | ||
745 | if (mon_ops->register_pattern) | |
746 | compile_pattern (mon_ops->register_pattern, ®ister_pattern, | |
747 | register_fastmap); | |
748 | ||
749 | if (mon_ops->getmem.resp_delim) | |
750 | compile_pattern (mon_ops->getmem.resp_delim, &getmem_resp_delim_pattern, | |
751 | getmem_resp_delim_fastmap); | |
752 | ||
753 | unpush_target (targ_ops); | |
754 | ||
755 | if (dev_name) | |
b8c9b27d | 756 | xfree (dev_name); |
4fcf66da | 757 | dev_name = xstrdup (args); |
c906108c SS |
758 | |
759 | monitor_desc = SERIAL_OPEN (dev_name); | |
760 | ||
761 | if (!monitor_desc) | |
762 | perror_with_name (dev_name); | |
763 | ||
764 | if (baud_rate != -1) | |
765 | { | |
766 | if (SERIAL_SETBAUDRATE (monitor_desc, baud_rate)) | |
767 | { | |
768 | SERIAL_CLOSE (monitor_desc); | |
769 | perror_with_name (dev_name); | |
770 | } | |
771 | } | |
c5aa993b | 772 | |
c906108c SS |
773 | SERIAL_RAW (monitor_desc); |
774 | ||
775 | SERIAL_FLUSH_INPUT (monitor_desc); | |
776 | ||
777 | /* some systems only work with 2 stop bits */ | |
778 | ||
779 | SERIAL_SETSTOPBITS (monitor_desc, mon_ops->stopbits); | |
780 | ||
781 | current_monitor = mon_ops; | |
782 | ||
783 | /* See if we can wake up the monitor. First, try sending a stop sequence, | |
784 | then send the init strings. Last, remove all breakpoints. */ | |
785 | ||
786 | if (current_monitor->stop) | |
787 | { | |
788 | monitor_stop (); | |
789 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) | |
c5aa993b | 790 | { |
2df3850c | 791 | monitor_debug ("EXP Open echo\n"); |
c5aa993b JM |
792 | monitor_expect_prompt (NULL, 0); |
793 | } | |
c906108c SS |
794 | } |
795 | ||
796 | /* wake up the monitor and see if it's alive */ | |
797 | for (p = mon_ops->init; *p != NULL; p++) | |
798 | { | |
799 | /* Some of the characters we send may not be echoed, | |
c5aa993b JM |
800 | but we hope to get a prompt at the end of it all. */ |
801 | ||
c906108c | 802 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) |
c5aa993b | 803 | monitor_printf (*p); |
c906108c | 804 | else |
c5aa993b | 805 | monitor_printf_noecho (*p); |
c906108c SS |
806 | monitor_expect_prompt (NULL, 0); |
807 | } | |
808 | ||
809 | SERIAL_FLUSH_INPUT (monitor_desc); | |
810 | ||
9e086581 JM |
811 | /* Alloc breakpoints */ |
812 | if (mon_ops->set_break != NULL) | |
813 | { | |
814 | if (mon_ops->num_breakpoints == 0) | |
815 | mon_ops->num_breakpoints = 8; | |
816 | ||
817 | breakaddr = (CORE_ADDR *) xmalloc (mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
818 | memset (breakaddr, 0, mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
819 | } | |
820 | ||
c906108c SS |
821 | /* Remove all breakpoints */ |
822 | ||
823 | if (mon_ops->clr_all_break) | |
824 | { | |
825 | monitor_printf (mon_ops->clr_all_break); | |
826 | monitor_expect_prompt (NULL, 0); | |
827 | } | |
828 | ||
829 | if (from_tty) | |
830 | printf_unfiltered ("Remote target %s connected to %s\n", name, dev_name); | |
831 | ||
832 | push_target (targ_ops); | |
833 | ||
834 | inferior_pid = 42000; /* Make run command think we are busy... */ | |
835 | ||
836 | /* Give monitor_wait something to read */ | |
837 | ||
838 | monitor_printf (current_monitor->line_term); | |
839 | ||
c906108c SS |
840 | start_remote (); |
841 | } | |
842 | ||
843 | /* Close out all files and local state before this target loses | |
844 | control. */ | |
845 | ||
846 | void | |
fba45db2 | 847 | monitor_close (int quitting) |
c906108c SS |
848 | { |
849 | if (monitor_desc) | |
850 | SERIAL_CLOSE (monitor_desc); | |
9e086581 JM |
851 | |
852 | /* Free breakpoint memory */ | |
853 | if (breakaddr != NULL) | |
854 | { | |
b8c9b27d | 855 | xfree (breakaddr); |
9e086581 JM |
856 | breakaddr = NULL; |
857 | } | |
858 | ||
c906108c SS |
859 | monitor_desc = NULL; |
860 | } | |
861 | ||
862 | /* Terminate the open connection to the remote debugger. Use this | |
863 | when you want to detach and do something else with your gdb. */ | |
864 | ||
865 | static void | |
fba45db2 | 866 | monitor_detach (char *args, int from_tty) |
c906108c SS |
867 | { |
868 | pop_target (); /* calls monitor_close to do the real work */ | |
869 | if (from_tty) | |
870 | printf_unfiltered ("Ending remote %s debugging\n", target_shortname); | |
871 | } | |
872 | ||
873 | /* Convert VALSTR into the target byte-ordered value of REGNO and store it. */ | |
874 | ||
875 | char * | |
fba45db2 | 876 | monitor_supply_register (int regno, char *valstr) |
c906108c | 877 | { |
d4f3574e | 878 | ULONGEST val; |
c906108c SS |
879 | unsigned char regbuf[MAX_REGISTER_RAW_SIZE]; |
880 | char *p; | |
881 | ||
4ce44c66 | 882 | val = 0; |
d4f3574e SS |
883 | p = valstr; |
884 | while (p && *p != '\0') | |
885 | { | |
886 | if (*p == '\r' || *p == '\n') | |
887 | { | |
888 | while (*p != '\0') | |
889 | p++; | |
890 | break; | |
891 | } | |
892 | if (isspace (*p)) | |
893 | { | |
894 | p++; | |
895 | continue; | |
896 | } | |
897 | if (!isxdigit (*p) && *p != 'x') | |
898 | { | |
899 | break; | |
900 | } | |
901 | ||
902 | val <<= 4; | |
903 | val += fromhex (*p++); | |
904 | } | |
2df3850c | 905 | monitor_debug ("Supplying Register %d %s\n", regno, valstr); |
c906108c | 906 | |
d4f3574e | 907 | if (*p != '\0') |
c906108c SS |
908 | error ("monitor_supply_register (%d): bad value from monitor: %s.", |
909 | regno, valstr); | |
910 | ||
911 | /* supply register stores in target byte order, so swap here */ | |
912 | ||
913 | store_unsigned_integer (regbuf, REGISTER_RAW_SIZE (regno), val); | |
914 | ||
915 | supply_register (regno, regbuf); | |
916 | ||
917 | return p; | |
918 | } | |
919 | ||
920 | /* Tell the remote machine to resume. */ | |
921 | ||
c906108c | 922 | static void |
fba45db2 | 923 | monitor_resume (int pid, int step, enum target_signal sig) |
c906108c SS |
924 | { |
925 | /* Some monitors require a different command when starting a program */ | |
2df3850c | 926 | monitor_debug ("MON resume\n"); |
c906108c SS |
927 | if (current_monitor->flags & MO_RUN_FIRST_TIME && first_time == 1) |
928 | { | |
929 | first_time = 0; | |
930 | monitor_printf ("run\r"); | |
931 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) | |
c5aa993b | 932 | dump_reg_flag = 1; |
c906108c SS |
933 | return; |
934 | } | |
c906108c SS |
935 | if (step) |
936 | monitor_printf (current_monitor->step); | |
937 | else | |
938 | { | |
939 | if (current_monitor->continue_hook) | |
c5aa993b JM |
940 | (*current_monitor->continue_hook) (); |
941 | else | |
942 | monitor_printf (current_monitor->cont); | |
c906108c SS |
943 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) |
944 | dump_reg_flag = 1; | |
945 | } | |
946 | } | |
947 | ||
948 | /* Parse the output of a register dump command. A monitor specific | |
949 | regexp is used to extract individual register descriptions of the | |
950 | form REG=VAL. Each description is split up into a name and a value | |
951 | string which are passed down to monitor specific code. */ | |
952 | ||
953 | static void | |
fba45db2 | 954 | parse_register_dump (char *buf, int len) |
c906108c | 955 | { |
2df3850c JM |
956 | monitor_debug ("MON Parsing register dump\n"); |
957 | while (1) | |
c906108c SS |
958 | { |
959 | int regnamelen, vallen; | |
960 | char *regname, *val; | |
961 | /* Element 0 points to start of register name, and element 1 | |
c5aa993b | 962 | points to the start of the register value. */ |
c906108c SS |
963 | struct re_registers register_strings; |
964 | ||
965 | memset (®ister_strings, 0, sizeof (struct re_registers)); | |
966 | ||
967 | if (re_search (®ister_pattern, buf, len, 0, len, | |
968 | ®ister_strings) == -1) | |
969 | break; | |
970 | ||
971 | regnamelen = register_strings.end[1] - register_strings.start[1]; | |
972 | regname = buf + register_strings.start[1]; | |
973 | vallen = register_strings.end[2] - register_strings.start[2]; | |
974 | val = buf + register_strings.start[2]; | |
975 | ||
976 | current_monitor->supply_register (regname, regnamelen, val, vallen); | |
977 | ||
978 | buf += register_strings.end[0]; | |
979 | len -= register_strings.end[0]; | |
980 | } | |
981 | } | |
982 | ||
983 | /* Send ^C to target to halt it. Target will respond, and send us a | |
984 | packet. */ | |
985 | ||
986 | static void | |
fba45db2 | 987 | monitor_interrupt (int signo) |
c906108c SS |
988 | { |
989 | /* If this doesn't work, try more severe steps. */ | |
990 | signal (signo, monitor_interrupt_twice); | |
c5aa993b | 991 | |
2df3850c JM |
992 | if (monitor_debug_p || remote_debug) |
993 | fprintf_unfiltered (gdb_stdlog, "monitor_interrupt called\n"); | |
c906108c SS |
994 | |
995 | target_stop (); | |
996 | } | |
997 | ||
998 | /* The user typed ^C twice. */ | |
999 | ||
1000 | static void | |
fba45db2 | 1001 | monitor_interrupt_twice (int signo) |
c906108c SS |
1002 | { |
1003 | signal (signo, ofunc); | |
c5aa993b | 1004 | |
c906108c SS |
1005 | monitor_interrupt_query (); |
1006 | ||
1007 | signal (signo, monitor_interrupt); | |
1008 | } | |
1009 | ||
1010 | /* Ask the user what to do when an interrupt is received. */ | |
1011 | ||
1012 | static void | |
fba45db2 | 1013 | monitor_interrupt_query (void) |
c906108c SS |
1014 | { |
1015 | target_terminal_ours (); | |
1016 | ||
1017 | if (query ("Interrupted while waiting for the program.\n\ | |
1018 | Give up (and stop debugging it)? ")) | |
1019 | { | |
1020 | target_mourn_inferior (); | |
1021 | return_to_top_level (RETURN_QUIT); | |
1022 | } | |
1023 | ||
1024 | target_terminal_inferior (); | |
1025 | } | |
1026 | ||
1027 | static void | |
fba45db2 | 1028 | monitor_wait_cleanup (void *old_timeout) |
c906108c | 1029 | { |
c5aa993b | 1030 | timeout = *(int *) old_timeout; |
c906108c SS |
1031 | signal (SIGINT, ofunc); |
1032 | in_monitor_wait = 0; | |
1033 | } | |
1034 | ||
1035 | ||
1036 | ||
c5aa993b JM |
1037 | void |
1038 | monitor_wait_filter (char *buf, | |
1039 | int bufmax, | |
1040 | int *ext_resp_len, | |
1041 | struct target_waitstatus *status | |
1042 | ) | |
c906108c | 1043 | { |
c5aa993b | 1044 | int resp_len; |
c906108c SS |
1045 | do |
1046 | { | |
1047 | resp_len = monitor_expect_prompt (buf, bufmax); | |
c5aa993b | 1048 | *ext_resp_len = resp_len; |
c906108c SS |
1049 | |
1050 | if (resp_len <= 0) | |
1051 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1052 | } | |
1053 | while (resp_len < 0); | |
1054 | ||
1055 | /* Print any output characters that were preceded by ^O. */ | |
1056 | /* FIXME - This would be great as a user settabgle flag */ | |
2df3850c JM |
1057 | if (monitor_debug_p || remote_debug |
1058 | || current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
c906108c SS |
1059 | { |
1060 | int i; | |
1061 | ||
1062 | for (i = 0; i < resp_len - 1; i++) | |
1063 | if (buf[i] == 0x0f) | |
1064 | putchar_unfiltered (buf[++i]); | |
1065 | } | |
1066 | } | |
1067 | ||
1068 | ||
1069 | ||
1070 | /* Wait until the remote machine stops, then return, storing status in | |
1071 | status just as `wait' would. */ | |
1072 | ||
1073 | static int | |
fba45db2 | 1074 | monitor_wait (int pid, struct target_waitstatus *status) |
c906108c SS |
1075 | { |
1076 | int old_timeout = timeout; | |
d4f3574e | 1077 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1078 | int resp_len; |
1079 | struct cleanup *old_chain; | |
1080 | ||
1081 | status->kind = TARGET_WAITKIND_EXITED; | |
1082 | status->value.integer = 0; | |
1083 | ||
1084 | old_chain = make_cleanup (monitor_wait_cleanup, &old_timeout); | |
2df3850c | 1085 | monitor_debug ("MON wait\n"); |
c906108c | 1086 | |
7a292a7a | 1087 | #if 0 |
c5aa993b JM |
1088 | /* This is somthing other than a maintenance command */ |
1089 | in_monitor_wait = 1; | |
c906108c SS |
1090 | timeout = watchdog > 0 ? watchdog : -1; |
1091 | #else | |
2df3850c | 1092 | timeout = -1; /* Don't time out -- user program is running. */ |
c906108c SS |
1093 | #endif |
1094 | ||
1095 | ofunc = (void (*)()) signal (SIGINT, monitor_interrupt); | |
1096 | ||
1097 | if (current_monitor->wait_filter) | |
c5aa993b JM |
1098 | (*current_monitor->wait_filter) (buf, sizeof (buf), &resp_len, status); |
1099 | else | |
1100 | monitor_wait_filter (buf, sizeof (buf), &resp_len, status); | |
1101 | ||
1102 | #if 0 /* Transferred to monitor wait filter */ | |
c906108c SS |
1103 | do |
1104 | { | |
1105 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1106 | ||
1107 | if (resp_len <= 0) | |
1108 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1109 | } | |
1110 | while (resp_len < 0); | |
1111 | ||
1112 | /* Print any output characters that were preceded by ^O. */ | |
1113 | /* FIXME - This would be great as a user settabgle flag */ | |
2df3850c JM |
1114 | if (monitor_debug_p || remote_debug |
1115 | || current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
c906108c SS |
1116 | { |
1117 | int i; | |
1118 | ||
1119 | for (i = 0; i < resp_len - 1; i++) | |
1120 | if (buf[i] == 0x0f) | |
1121 | putchar_unfiltered (buf[++i]); | |
1122 | } | |
c5aa993b | 1123 | #endif |
c906108c SS |
1124 | |
1125 | signal (SIGINT, ofunc); | |
1126 | ||
1127 | timeout = old_timeout; | |
1128 | #if 0 | |
1129 | if (dump_reg_flag && current_monitor->dump_registers) | |
1130 | { | |
1131 | dump_reg_flag = 0; | |
1132 | monitor_printf (current_monitor->dump_registers); | |
1133 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1134 | } | |
1135 | ||
1136 | if (current_monitor->register_pattern) | |
1137 | parse_register_dump (buf, resp_len); | |
1138 | #else | |
2df3850c | 1139 | monitor_debug ("Wait fetching registers after stop\n"); |
c5aa993b JM |
1140 | monitor_dump_regs (); |
1141 | #endif | |
c906108c SS |
1142 | |
1143 | status->kind = TARGET_WAITKIND_STOPPED; | |
1144 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1145 | ||
1146 | discard_cleanups (old_chain); | |
1147 | ||
1148 | in_monitor_wait = 0; | |
1149 | ||
1150 | return inferior_pid; | |
1151 | } | |
1152 | ||
1153 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns | |
1154 | errno value. */ | |
1155 | ||
1156 | static void | |
fba45db2 | 1157 | monitor_fetch_register (int regno) |
c906108c SS |
1158 | { |
1159 | char *name; | |
86110418 MS |
1160 | char *zerobuf; |
1161 | char *regbuf; | |
c906108c SS |
1162 | int i; |
1163 | ||
86110418 MS |
1164 | regbuf = alloca (MAX_REGISTER_RAW_SIZE * 2 + 1); |
1165 | zerobuf = alloca (MAX_REGISTER_RAW_SIZE); | |
1166 | memset (zerobuf, 0, MAX_REGISTER_RAW_SIZE); | |
1167 | ||
c906108c | 1168 | name = current_monitor->regnames[regno]; |
2df3850c | 1169 | monitor_debug ("MON fetchreg %d '%s'\n", regno, name ? name : "(null name)"); |
c906108c | 1170 | |
2df3850c | 1171 | if (!name || (*name == '\0')) |
7a292a7a | 1172 | { |
2df3850c JM |
1173 | monitor_debug ("No register known for %d\n", regno); |
1174 | supply_register (regno, zerobuf); | |
c906108c SS |
1175 | return; |
1176 | } | |
1177 | ||
1178 | /* send the register examine command */ | |
1179 | ||
1180 | monitor_printf (current_monitor->getreg.cmd, name); | |
1181 | ||
1182 | /* If RESP_DELIM is specified, we search for that as a leading | |
1183 | delimiter for the register value. Otherwise, we just start | |
1184 | searching from the start of the buf. */ | |
1185 | ||
1186 | if (current_monitor->getreg.resp_delim) | |
1187 | { | |
2df3850c JM |
1188 | monitor_debug ("EXP getreg.resp_delim\n"); |
1189 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); | |
c906108c SS |
1190 | /* Handle case of first 32 registers listed in pairs. */ |
1191 | if (current_monitor->flags & MO_32_REGS_PAIRED | |
7a292a7a | 1192 | && (regno & 1) != 0 && regno < 32) |
c5aa993b | 1193 | { |
2df3850c | 1194 | monitor_debug ("EXP getreg.resp_delim\n"); |
c906108c SS |
1195 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); |
1196 | } | |
1197 | } | |
1198 | ||
1199 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set */ | |
c5aa993b | 1200 | if (current_monitor->flags & MO_HEX_PREFIX) |
c906108c SS |
1201 | { |
1202 | int c; | |
1203 | c = readchar (timeout); | |
1204 | while (c == ' ') | |
1205 | c = readchar (timeout); | |
1206 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1207 | ; | |
1208 | else | |
c5aa993b JM |
1209 | error ("Bad value returned from monitor while fetching register %x.", |
1210 | regno); | |
c906108c SS |
1211 | } |
1212 | ||
1213 | /* Read upto the maximum number of hex digits for this register, skipping | |
1214 | spaces, but stop reading if something else is seen. Some monitors | |
1215 | like to drop leading zeros. */ | |
1216 | ||
1217 | for (i = 0; i < REGISTER_RAW_SIZE (regno) * 2; i++) | |
1218 | { | |
1219 | int c; | |
1220 | c = readchar (timeout); | |
1221 | while (c == ' ') | |
1222 | c = readchar (timeout); | |
1223 | ||
1224 | if (!isxdigit (c)) | |
1225 | break; | |
1226 | ||
1227 | regbuf[i] = c; | |
1228 | } | |
1229 | ||
1230 | regbuf[i] = '\000'; /* terminate the number */ | |
2df3850c | 1231 | monitor_debug ("REGVAL '%s'\n", regbuf); |
c906108c SS |
1232 | |
1233 | /* If TERM is present, we wait for that to show up. Also, (if TERM | |
1234 | is present), we will send TERM_CMD if that is present. In any | |
1235 | case, we collect all of the output into buf, and then wait for | |
1236 | the normal prompt. */ | |
1237 | ||
1238 | if (current_monitor->getreg.term) | |
1239 | { | |
2df3850c JM |
1240 | monitor_debug ("EXP getreg.term\n"); |
1241 | monitor_expect (current_monitor->getreg.term, NULL, 0); /* get response */ | |
c906108c SS |
1242 | } |
1243 | ||
1244 | if (current_monitor->getreg.term_cmd) | |
c5aa993b | 1245 | { |
2df3850c JM |
1246 | monitor_debug ("EMIT getreg.term.cmd\n"); |
1247 | monitor_printf (current_monitor->getreg.term_cmd); | |
c906108c | 1248 | } |
c5aa993b JM |
1249 | if (!current_monitor->getreg.term || /* Already expected or */ |
1250 | current_monitor->getreg.term_cmd) /* ack expected */ | |
1251 | monitor_expect_prompt (NULL, 0); /* get response */ | |
c906108c SS |
1252 | |
1253 | monitor_supply_register (regno, regbuf); | |
1254 | } | |
1255 | ||
1256 | /* Sometimes, it takes several commands to dump the registers */ | |
1257 | /* This is a primitive for use by variations of monitor interfaces in | |
1258 | case they need to compose the operation. | |
c5aa993b JM |
1259 | */ |
1260 | int | |
1261 | monitor_dump_reg_block (char *block_cmd) | |
c906108c | 1262 | { |
d4f3574e | 1263 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1264 | int resp_len; |
1265 | monitor_printf (block_cmd); | |
1266 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1267 | parse_register_dump (buf, resp_len); | |
c5aa993b | 1268 | return 1; |
c906108c SS |
1269 | } |
1270 | ||
1271 | ||
1272 | /* Read the remote registers into the block regs. */ | |
1273 | /* Call the specific function if it has been provided */ | |
1274 | ||
1275 | static void | |
fba45db2 | 1276 | monitor_dump_regs (void) |
c906108c | 1277 | { |
d4f3574e | 1278 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1279 | int resp_len; |
1280 | if (current_monitor->dumpregs) | |
c5aa993b JM |
1281 | (*(current_monitor->dumpregs)) (); /* call supplied function */ |
1282 | else if (current_monitor->dump_registers) /* default version */ | |
1283 | { | |
1284 | monitor_printf (current_monitor->dump_registers); | |
c906108c SS |
1285 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
1286 | parse_register_dump (buf, resp_len); | |
1287 | } | |
1288 | else | |
c5aa993b | 1289 | abort (); /* Need some way to read registers */ |
c906108c SS |
1290 | } |
1291 | ||
1292 | static void | |
fba45db2 | 1293 | monitor_fetch_registers (int regno) |
c906108c | 1294 | { |
2df3850c | 1295 | monitor_debug ("MON fetchregs\n"); |
c5aa993b | 1296 | if (current_monitor->getreg.cmd) |
c906108c SS |
1297 | { |
1298 | if (regno >= 0) | |
1299 | { | |
1300 | monitor_fetch_register (regno); | |
1301 | return; | |
1302 | } | |
1303 | ||
1304 | for (regno = 0; regno < NUM_REGS; regno++) | |
1305 | monitor_fetch_register (regno); | |
1306 | } | |
c5aa993b JM |
1307 | else |
1308 | { | |
1309 | monitor_dump_regs (); | |
1310 | } | |
c906108c SS |
1311 | } |
1312 | ||
1313 | /* Store register REGNO, or all if REGNO == 0. Return errno value. */ | |
1314 | ||
1315 | static void | |
fba45db2 | 1316 | monitor_store_register (int regno) |
c906108c SS |
1317 | { |
1318 | char *name; | |
d4f3574e | 1319 | ULONGEST val; |
c906108c SS |
1320 | |
1321 | name = current_monitor->regnames[regno]; | |
1322 | if (!name || (*name == '\0')) | |
c5aa993b | 1323 | { |
2df3850c JM |
1324 | monitor_debug ("MON Cannot store unknown register\n"); |
1325 | return; | |
c906108c SS |
1326 | } |
1327 | ||
1328 | val = read_register (regno); | |
5683e87a AC |
1329 | monitor_debug ("MON storeg %d %s\n", regno, |
1330 | phex (val, REGISTER_RAW_SIZE (regno))); | |
c906108c SS |
1331 | |
1332 | /* send the register deposit command */ | |
1333 | ||
2df3850c | 1334 | if (current_monitor->flags & MO_REGISTER_VALUE_FIRST) |
c906108c SS |
1335 | monitor_printf (current_monitor->setreg.cmd, val, name); |
1336 | else if (current_monitor->flags & MO_SETREG_INTERACTIVE) | |
1337 | monitor_printf (current_monitor->setreg.cmd, name); | |
1338 | else | |
1339 | monitor_printf (current_monitor->setreg.cmd, name, val); | |
1340 | ||
1341 | if (current_monitor->setreg.term) | |
c5aa993b | 1342 | { |
2df3850c JM |
1343 | monitor_debug ("EXP setreg.term\n"); |
1344 | monitor_expect (current_monitor->setreg.term, NULL, 0); | |
c906108c | 1345 | if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
2df3850c | 1346 | monitor_printf ("%s\r", paddr_nz (val)); |
c906108c SS |
1347 | monitor_expect_prompt (NULL, 0); |
1348 | } | |
1349 | else | |
1350 | monitor_expect_prompt (NULL, 0); | |
c5aa993b JM |
1351 | if (current_monitor->setreg.term_cmd) /* Mode exit required */ |
1352 | { | |
2df3850c | 1353 | monitor_debug ("EXP setreg_termcmd\n"); |
c5aa993b JM |
1354 | monitor_printf ("%s", current_monitor->setreg.term_cmd); |
1355 | monitor_expect_prompt (NULL, 0); | |
c906108c | 1356 | } |
c5aa993b | 1357 | } /* monitor_store_register */ |
c906108c SS |
1358 | |
1359 | /* Store the remote registers. */ | |
1360 | ||
1361 | static void | |
fba45db2 | 1362 | monitor_store_registers (int regno) |
c906108c SS |
1363 | { |
1364 | if (regno >= 0) | |
1365 | { | |
1366 | monitor_store_register (regno); | |
1367 | return; | |
1368 | } | |
1369 | ||
1370 | for (regno = 0; regno < NUM_REGS; regno++) | |
1371 | monitor_store_register (regno); | |
1372 | } | |
1373 | ||
1374 | /* Get ready to modify the registers array. On machines which store | |
1375 | individual registers, this doesn't need to do anything. On machines | |
1376 | which store all the registers in one fell swoop, this makes sure | |
1377 | that registers contains all the registers from the program being | |
1378 | debugged. */ | |
1379 | ||
1380 | static void | |
fba45db2 | 1381 | monitor_prepare_to_store (void) |
c906108c SS |
1382 | { |
1383 | /* Do nothing, since we can store individual regs */ | |
1384 | } | |
1385 | ||
1386 | static void | |
fba45db2 | 1387 | monitor_files_info (struct target_ops *ops) |
c906108c SS |
1388 | { |
1389 | printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baud_rate); | |
1390 | } | |
1391 | ||
1392 | static int | |
fba45db2 | 1393 | monitor_write_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1394 | { |
c5aa993b | 1395 | unsigned int val, hostval; |
c906108c SS |
1396 | char *cmd; |
1397 | int i; | |
1398 | ||
2df3850c | 1399 | monitor_debug ("MON write %d %s\n", len, paddr (memaddr)); |
c906108c | 1400 | |
2df3850c | 1401 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
c906108c SS |
1402 | memaddr = ADDR_BITS_REMOVE (memaddr); |
1403 | ||
1404 | /* Use memory fill command for leading 0 bytes. */ | |
1405 | ||
1406 | if (current_monitor->fill) | |
1407 | { | |
1408 | for (i = 0; i < len; i++) | |
1409 | if (myaddr[i] != 0) | |
1410 | break; | |
1411 | ||
1412 | if (i > 4) /* More than 4 zeros is worth doing */ | |
1413 | { | |
2df3850c JM |
1414 | monitor_debug ("MON FILL %d\n", i); |
1415 | if (current_monitor->flags & MO_FILL_USES_ADDR) | |
c5aa993b JM |
1416 | monitor_printf (current_monitor->fill, memaddr, (memaddr + i) - 1, 0); |
1417 | else | |
1418 | monitor_printf (current_monitor->fill, memaddr, i, 0); | |
c906108c SS |
1419 | |
1420 | monitor_expect_prompt (NULL, 0); | |
1421 | ||
1422 | return i; | |
1423 | } | |
1424 | } | |
1425 | ||
1426 | #if 0 | |
1427 | /* Can't actually use long longs if VAL is an int (nice idea, though). */ | |
1428 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->setmem.cmdll) | |
1429 | { | |
1430 | len = 8; | |
1431 | cmd = current_monitor->setmem.cmdll; | |
1432 | } | |
1433 | else | |
1434 | #endif | |
1435 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->setmem.cmdl) | |
1436 | { | |
1437 | len = 4; | |
1438 | cmd = current_monitor->setmem.cmdl; | |
1439 | } | |
1440 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->setmem.cmdw) | |
1441 | { | |
1442 | len = 2; | |
1443 | cmd = current_monitor->setmem.cmdw; | |
1444 | } | |
1445 | else | |
1446 | { | |
1447 | len = 1; | |
1448 | cmd = current_monitor->setmem.cmdb; | |
1449 | } | |
1450 | ||
1451 | val = extract_unsigned_integer (myaddr, len); | |
c5aa993b | 1452 | |
c906108c | 1453 | if (len == 4) |
c5aa993b JM |
1454 | { |
1455 | hostval = *(unsigned int *) myaddr; | |
2df3850c | 1456 | monitor_debug ("Hostval(%08x) val(%08x)\n", hostval, val); |
c906108c SS |
1457 | } |
1458 | ||
1459 | ||
1460 | if (current_monitor->flags & MO_NO_ECHO_ON_SETMEM) | |
1461 | monitor_printf_noecho (cmd, memaddr, val); | |
1462 | else if (current_monitor->flags & MO_SETMEM_INTERACTIVE) | |
1463 | { | |
1464 | ||
1465 | monitor_printf_noecho (cmd, memaddr); | |
1466 | ||
1467 | if (current_monitor->setmem.term) | |
c5aa993b | 1468 | { |
2df3850c | 1469 | monitor_debug ("EXP setmem.term"); |
c906108c SS |
1470 | monitor_expect (current_monitor->setmem.term, NULL, 0); |
1471 | monitor_printf ("%x\r", val); | |
1472 | } | |
1473 | if (current_monitor->setmem.term_cmd) | |
c5aa993b JM |
1474 | { /* Emit this to get out of the memory editing state */ |
1475 | monitor_printf ("%s", current_monitor->setmem.term_cmd); | |
c906108c SS |
1476 | /* Drop through to expecting a prompt */ |
1477 | } | |
1478 | } | |
1479 | else | |
1480 | monitor_printf (cmd, memaddr, val); | |
1481 | ||
1482 | monitor_expect_prompt (NULL, 0); | |
1483 | ||
1484 | return len; | |
1485 | } | |
1486 | ||
1487 | ||
1488 | static int | |
fba45db2 | 1489 | monitor_write_even_block (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1490 | { |
c5aa993b JM |
1491 | unsigned int val; |
1492 | int written = 0;; | |
c906108c | 1493 | /* Enter the sub mode */ |
c5aa993b JM |
1494 | monitor_printf (current_monitor->setmem.cmdl, memaddr); |
1495 | monitor_expect_prompt (NULL, 0); | |
1496 | ||
c906108c SS |
1497 | while (len) |
1498 | { | |
c5aa993b JM |
1499 | val = extract_unsigned_integer (myaddr, 4); /* REALLY */ |
1500 | monitor_printf ("%x\r", val); | |
1501 | myaddr += 4; | |
1502 | memaddr += 4; | |
1503 | written += 4; | |
2df3850c | 1504 | monitor_debug (" @ %s\n", paddr (memaddr)); |
c906108c | 1505 | /* If we wanted to, here we could validate the address */ |
2df3850c | 1506 | monitor_expect_prompt (NULL, 0); |
c906108c SS |
1507 | } |
1508 | /* Now exit the sub mode */ | |
1509 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1510 | monitor_expect_prompt (NULL, 0); |
1511 | return written; | |
c906108c SS |
1512 | } |
1513 | ||
1514 | ||
c5aa993b | 1515 | static int |
fba45db2 | 1516 | monitor_write_memory_bytes (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1517 | { |
c5aa993b JM |
1518 | unsigned char val; |
1519 | int written = 0; | |
1520 | if (len == 0) | |
1521 | return 0; | |
c906108c | 1522 | /* Enter the sub mode */ |
c5aa993b JM |
1523 | monitor_printf (current_monitor->setmem.cmdb, memaddr); |
1524 | monitor_expect_prompt (NULL, 0); | |
c906108c SS |
1525 | while (len) |
1526 | { | |
c5aa993b JM |
1527 | val = *myaddr; |
1528 | monitor_printf ("%x\r", val); | |
1529 | myaddr++; | |
1530 | memaddr++; | |
1531 | written++; | |
c906108c | 1532 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1533 | monitor_expect_prompt (NULL, 0); |
1534 | len--; | |
c906108c SS |
1535 | } |
1536 | /* Now exit the sub mode */ | |
1537 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1538 | monitor_expect_prompt (NULL, 0); |
1539 | return written; | |
c906108c SS |
1540 | } |
1541 | ||
1542 | ||
1543 | static void | |
c5aa993b | 1544 | longlongendswap (unsigned char *a) |
c906108c | 1545 | { |
c5aa993b JM |
1546 | int i, j; |
1547 | unsigned char x; | |
1548 | i = 0; | |
1549 | j = 7; | |
c906108c | 1550 | while (i < 4) |
c5aa993b JM |
1551 | { |
1552 | x = *(a + i); | |
1553 | *(a + i) = *(a + j); | |
1554 | *(a + j) = x; | |
1555 | i++, j--; | |
c906108c SS |
1556 | } |
1557 | } | |
1558 | /* Format 32 chars of long long value, advance the pointer */ | |
c5aa993b JM |
1559 | static char *hexlate = "0123456789abcdef"; |
1560 | static char * | |
1561 | longlong_hexchars (unsigned long long value, | |
1562 | char *outbuff) | |
c906108c | 1563 | { |
c5aa993b JM |
1564 | if (value == 0) |
1565 | { | |
1566 | *outbuff++ = '0'; | |
1567 | return outbuff; | |
1568 | } | |
c906108c | 1569 | else |
c5aa993b JM |
1570 | { |
1571 | static unsigned char disbuf[8]; /* disassembly buffer */ | |
1572 | unsigned char *scan, *limit; /* loop controls */ | |
1573 | unsigned char c, nib; | |
1574 | int leadzero = 1; | |
1575 | scan = disbuf; | |
1576 | limit = scan + 8; | |
1577 | { | |
1578 | unsigned long long *dp; | |
1579 | dp = (unsigned long long *) scan; | |
1580 | *dp = value; | |
c906108c | 1581 | } |
c5aa993b | 1582 | longlongendswap (disbuf); /* FIXME: ONly on big endian hosts */ |
c906108c | 1583 | while (scan < limit) |
7a292a7a | 1584 | { |
c5aa993b | 1585 | c = *scan++; /* a byte of our long long value */ |
c906108c | 1586 | if (leadzero) |
7a292a7a SS |
1587 | { |
1588 | if (c == 0) | |
1589 | continue; | |
1590 | else | |
c5aa993b | 1591 | leadzero = 0; /* henceforth we print even zeroes */ |
7a292a7a | 1592 | } |
c5aa993b | 1593 | nib = c >> 4; /* high nibble bits */ |
7a292a7a | 1594 | *outbuff++ = hexlate[nib]; |
c5aa993b | 1595 | nib = c & 0x0f; /* low nibble bits */ |
7a292a7a | 1596 | *outbuff++ = hexlate[nib]; |
c906108c | 1597 | } |
c5aa993b | 1598 | return outbuff; |
c906108c | 1599 | } |
c5aa993b | 1600 | } /* longlong_hexchars */ |
c906108c SS |
1601 | |
1602 | ||
1603 | ||
1604 | /* I am only going to call this when writing virtual byte streams. | |
1605 | Which possably entails endian conversions | |
c5aa993b JM |
1606 | */ |
1607 | static int | |
fba45db2 | 1608 | monitor_write_memory_longlongs (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1609 | { |
c5aa993b JM |
1610 | static char hexstage[20]; /* At least 16 digits required, plus null */ |
1611 | char *endstring; | |
1612 | long long *llptr; | |
1613 | long long value; | |
1614 | int written = 0; | |
1615 | llptr = (unsigned long long *) myaddr; | |
1616 | if (len == 0) | |
1617 | return 0; | |
1618 | monitor_printf (current_monitor->setmem.cmdll, memaddr); | |
1619 | monitor_expect_prompt (NULL, 0); | |
1620 | while (len >= 8) | |
1621 | { | |
1622 | value = *llptr; | |
1623 | endstring = longlong_hexchars (*llptr, hexstage); | |
1624 | *endstring = '\0'; /* NUll terminate for printf */ | |
1625 | monitor_printf ("%s\r", hexstage); | |
1626 | llptr++; | |
1627 | memaddr += 8; | |
1628 | written += 8; | |
c906108c | 1629 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1630 | monitor_expect_prompt (NULL, 0); |
1631 | len -= 8; | |
c906108c SS |
1632 | } |
1633 | /* Now exit the sub mode */ | |
1634 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1635 | monitor_expect_prompt (NULL, 0); |
1636 | return written; | |
1637 | } /* */ | |
c906108c SS |
1638 | |
1639 | ||
1640 | ||
1641 | /* ----- MONITOR_WRITE_MEMORY_BLOCK ---------------------------- */ | |
1642 | /* This is for the large blocks of memory which may occur in downloading. | |
1643 | And for monitors which use interactive entry, | |
1644 | And for monitors which do not have other downloading methods. | |
1645 | Without this, we will end up calling monitor_write_memory many times | |
1646 | and do the entry and exit of the sub mode many times | |
1647 | This currently assumes... | |
c5aa993b JM |
1648 | MO_SETMEM_INTERACTIVE |
1649 | ! MO_NO_ECHO_ON_SETMEM | |
1650 | To use this, the you have to patch the monitor_cmds block with | |
1651 | this function. Otherwise, its not tuned up for use by all | |
1652 | monitor variations. | |
1653 | */ | |
c906108c | 1654 | |
c5aa993b | 1655 | static int |
fba45db2 | 1656 | monitor_write_memory_block (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1657 | { |
c5aa993b JM |
1658 | int written; |
1659 | written = 0; | |
c906108c | 1660 | /* FIXME: This would be a good place to put the zero test */ |
c5aa993b | 1661 | #if 1 |
c906108c | 1662 | if ((len > 8) && (((len & 0x07)) == 0) && current_monitor->setmem.cmdll) |
c5aa993b JM |
1663 | { |
1664 | return monitor_write_memory_longlongs (memaddr, myaddr, len); | |
1665 | } | |
1666 | #endif | |
1667 | #if 0 | |
c906108c SS |
1668 | if (len > 4) |
1669 | { | |
c5aa993b JM |
1670 | int sublen; |
1671 | written = monitor_write_even_block (memaddr, myaddr, len); | |
c906108c | 1672 | /* Adjust calling parameters by written amount */ |
c5aa993b JM |
1673 | memaddr += written; |
1674 | myaddr += written; | |
1675 | len -= written; | |
c906108c SS |
1676 | } |
1677 | #endif | |
c5aa993b JM |
1678 | written = monitor_write_memory_bytes (memaddr, myaddr, len); |
1679 | return written; | |
c906108c SS |
1680 | } |
1681 | ||
1682 | /* This is an alternate form of monitor_read_memory which is used for monitors | |
1683 | which can only read a single byte/word/etc. at a time. */ | |
1684 | ||
1685 | static int | |
fba45db2 | 1686 | monitor_read_memory_single (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c SS |
1687 | { |
1688 | unsigned int val; | |
c5aa993b | 1689 | char membuf[sizeof (int) * 2 + 1]; |
c906108c SS |
1690 | char *p; |
1691 | char *cmd; | |
1692 | int i; | |
1693 | ||
2df3850c | 1694 | monitor_debug ("MON read single\n"); |
c906108c SS |
1695 | #if 0 |
1696 | /* Can't actually use long longs (nice idea, though). In fact, the | |
1697 | call to strtoul below will fail if it tries to convert a value | |
1698 | that's too big to fit in a long. */ | |
1699 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->getmem.cmdll) | |
1700 | { | |
1701 | len = 8; | |
1702 | cmd = current_monitor->getmem.cmdll; | |
1703 | } | |
1704 | else | |
1705 | #endif | |
1706 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->getmem.cmdl) | |
1707 | { | |
1708 | len = 4; | |
1709 | cmd = current_monitor->getmem.cmdl; | |
1710 | } | |
1711 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->getmem.cmdw) | |
1712 | { | |
1713 | len = 2; | |
1714 | cmd = current_monitor->getmem.cmdw; | |
1715 | } | |
1716 | else | |
1717 | { | |
1718 | len = 1; | |
1719 | cmd = current_monitor->getmem.cmdb; | |
1720 | } | |
1721 | ||
1722 | /* Send the examine command. */ | |
1723 | ||
1724 | monitor_printf (cmd, memaddr); | |
1725 | ||
1726 | /* If RESP_DELIM is specified, we search for that as a leading | |
1727 | delimiter for the memory value. Otherwise, we just start | |
1728 | searching from the start of the buf. */ | |
1729 | ||
1730 | if (current_monitor->getmem.resp_delim) | |
c5aa993b | 1731 | { |
2df3850c | 1732 | monitor_debug ("EXP getmem.resp_delim\n"); |
c906108c SS |
1733 | monitor_expect_regexp (&getmem_resp_delim_pattern, NULL, 0); |
1734 | } | |
1735 | ||
1736 | /* Now, read the appropriate number of hex digits for this loc, | |
1737 | skipping spaces. */ | |
1738 | ||
1739 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */ | |
c5aa993b | 1740 | if (current_monitor->flags & MO_HEX_PREFIX) |
c906108c SS |
1741 | { |
1742 | int c; | |
1743 | ||
1744 | c = readchar (timeout); | |
1745 | while (c == ' ') | |
1746 | c = readchar (timeout); | |
1747 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1748 | ; | |
1749 | else | |
2df3850c JM |
1750 | monitor_error ("monitor_read_memory_single", |
1751 | "bad response from monitor", | |
c906108c SS |
1752 | memaddr, i, membuf, c); |
1753 | } | |
1754 | for (i = 0; i < len * 2; i++) | |
1755 | { | |
1756 | int c; | |
1757 | ||
1758 | while (1) | |
1759 | { | |
1760 | c = readchar (timeout); | |
1761 | if (isxdigit (c)) | |
1762 | break; | |
1763 | if (c == ' ') | |
1764 | continue; | |
1765 | ||
2df3850c JM |
1766 | monitor_error ("monitor_read_memory_single", |
1767 | "bad response from monitor", | |
c906108c SS |
1768 | memaddr, i, membuf, c); |
1769 | } | |
1770 | ||
1771 | membuf[i] = c; | |
1772 | } | |
1773 | ||
1774 | membuf[i] = '\000'; /* terminate the number */ | |
1775 | ||
1776 | /* If TERM is present, we wait for that to show up. Also, (if TERM is | |
1777 | present), we will send TERM_CMD if that is present. In any case, we collect | |
1778 | all of the output into buf, and then wait for the normal prompt. */ | |
1779 | ||
1780 | if (current_monitor->getmem.term) | |
1781 | { | |
c5aa993b | 1782 | monitor_expect (current_monitor->getmem.term, NULL, 0); /* get response */ |
c906108c SS |
1783 | |
1784 | if (current_monitor->getmem.term_cmd) | |
1785 | { | |
1786 | monitor_printf (current_monitor->getmem.term_cmd); | |
1787 | monitor_expect_prompt (NULL, 0); | |
1788 | } | |
1789 | } | |
1790 | else | |
c5aa993b | 1791 | monitor_expect_prompt (NULL, 0); /* get response */ |
c906108c SS |
1792 | |
1793 | p = membuf; | |
1794 | val = strtoul (membuf, &p, 16); | |
1795 | ||
1796 | if (val == 0 && membuf == p) | |
2df3850c JM |
1797 | monitor_error ("monitor_read_memory_single", |
1798 | "bad value from monitor", | |
c906108c SS |
1799 | memaddr, 0, membuf, 0); |
1800 | ||
1801 | /* supply register stores in target byte order, so swap here */ | |
1802 | ||
1803 | store_unsigned_integer (myaddr, len, val); | |
1804 | ||
1805 | return len; | |
1806 | } | |
1807 | ||
1808 | /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's | |
1809 | memory at MEMADDR. Returns length moved. Currently, we do no more | |
1810 | than 16 bytes at a time. */ | |
1811 | ||
1812 | static int | |
fba45db2 | 1813 | monitor_read_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c SS |
1814 | { |
1815 | unsigned int val; | |
1816 | char buf[512]; | |
1817 | char *p, *p1; | |
1818 | int resp_len; | |
1819 | int i; | |
1820 | CORE_ADDR dumpaddr; | |
1821 | ||
1822 | if (len <= 0) | |
1823 | { | |
2df3850c | 1824 | monitor_debug ("Zero length call to monitor_read_memory\n"); |
c906108c SS |
1825 | return 0; |
1826 | } | |
1827 | ||
2df3850c JM |
1828 | monitor_debug ("MON read block ta(%s) ha(%lx) %d\n", |
1829 | paddr_nz (memaddr), (long) myaddr, len); | |
c906108c SS |
1830 | |
1831 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1832 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
1833 | ||
1834 | if (current_monitor->flags & MO_GETMEM_READ_SINGLE) | |
1835 | return monitor_read_memory_single (memaddr, myaddr, len); | |
1836 | ||
1837 | len = min (len, 16); | |
1838 | ||
1839 | /* Some dumpers align the first data with the preceeding 16 | |
1840 | byte boundary. Some print blanks and start at the | |
1841 | requested boundary. EXACT_DUMPADDR | |
c5aa993b | 1842 | */ |
c906108c SS |
1843 | |
1844 | dumpaddr = (current_monitor->flags & MO_EXACT_DUMPADDR) | |
c5aa993b | 1845 | ? memaddr : memaddr & ~0x0f; |
c906108c SS |
1846 | |
1847 | /* See if xfer would cross a 16 byte boundary. If so, clip it. */ | |
1848 | if (((memaddr ^ (memaddr + len - 1)) & ~0xf) != 0) | |
1849 | len = ((memaddr + len) & ~0xf) - memaddr; | |
1850 | ||
1851 | /* send the memory examine command */ | |
1852 | ||
1853 | if (current_monitor->flags & MO_GETMEM_NEEDS_RANGE) | |
7a292a7a | 1854 | monitor_printf (current_monitor->getmem.cmdb, memaddr, memaddr + len); |
c906108c SS |
1855 | else if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1856 | monitor_printf (current_monitor->getmem.cmdb, dumpaddr); | |
1857 | else | |
1858 | monitor_printf (current_monitor->getmem.cmdb, memaddr, len); | |
1859 | ||
1860 | /* If TERM is present, we wait for that to show up. Also, (if TERM | |
1861 | is present), we will send TERM_CMD if that is present. In any | |
1862 | case, we collect all of the output into buf, and then wait for | |
1863 | the normal prompt. */ | |
1864 | ||
1865 | if (current_monitor->getmem.term) | |
1866 | { | |
c5aa993b | 1867 | resp_len = monitor_expect (current_monitor->getmem.term, buf, sizeof buf); /* get response */ |
c906108c SS |
1868 | |
1869 | if (resp_len <= 0) | |
2df3850c JM |
1870 | monitor_error ("monitor_read_memory", |
1871 | "excessive response from monitor", | |
c906108c SS |
1872 | memaddr, resp_len, buf, 0); |
1873 | ||
1874 | if (current_monitor->getmem.term_cmd) | |
1875 | { | |
1876 | SERIAL_WRITE (monitor_desc, current_monitor->getmem.term_cmd, | |
1877 | strlen (current_monitor->getmem.term_cmd)); | |
1878 | monitor_expect_prompt (NULL, 0); | |
1879 | } | |
1880 | } | |
1881 | else | |
c5aa993b | 1882 | resp_len = monitor_expect_prompt (buf, sizeof buf); /* get response */ |
c906108c SS |
1883 | |
1884 | p = buf; | |
1885 | ||
1886 | /* If RESP_DELIM is specified, we search for that as a leading | |
1887 | delimiter for the values. Otherwise, we just start searching | |
1888 | from the start of the buf. */ | |
1889 | ||
1890 | if (current_monitor->getmem.resp_delim) | |
1891 | { | |
1892 | int retval, tmp; | |
1893 | struct re_registers resp_strings; | |
2df3850c | 1894 | monitor_debug ("MON getmem.resp_delim %s\n", current_monitor->getmem.resp_delim); |
c906108c SS |
1895 | |
1896 | memset (&resp_strings, 0, sizeof (struct re_registers)); | |
1897 | tmp = strlen (p); | |
1898 | retval = re_search (&getmem_resp_delim_pattern, p, tmp, 0, tmp, | |
1899 | &resp_strings); | |
1900 | ||
1901 | if (retval < 0) | |
2df3850c JM |
1902 | monitor_error ("monitor_read_memory", |
1903 | "bad response from monitor", | |
c906108c SS |
1904 | memaddr, resp_len, buf, 0); |
1905 | ||
1906 | p += resp_strings.end[0]; | |
1907 | #if 0 | |
1908 | p = strstr (p, current_monitor->getmem.resp_delim); | |
1909 | if (!p) | |
2df3850c JM |
1910 | monitor_error ("monitor_read_memory", |
1911 | "bad response from monitor", | |
c906108c SS |
1912 | memaddr, resp_len, buf, 0); |
1913 | p += strlen (current_monitor->getmem.resp_delim); | |
1914 | #endif | |
1915 | } | |
2df3850c | 1916 | monitor_debug ("MON scanning %d ,%lx '%s'\n", len, (long) p, p); |
c906108c SS |
1917 | if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1918 | { | |
c5aa993b JM |
1919 | char c; |
1920 | int fetched = 0; | |
c906108c | 1921 | i = len; |
c5aa993b | 1922 | c = *p; |
c906108c | 1923 | |
c5aa993b JM |
1924 | |
1925 | while (!(c == '\000' || c == '\n' || c == '\r') && i > 0) | |
1926 | { | |
1927 | if (isxdigit (c)) | |
1928 | { | |
1929 | if ((dumpaddr >= memaddr) && (i > 0)) | |
1930 | { | |
1931 | val = fromhex (c) * 16 + fromhex (*(p + 1)); | |
c906108c | 1932 | *myaddr++ = val; |
2df3850c JM |
1933 | if (monitor_debug_p || remote_debug) |
1934 | fprintf_unfiltered (gdb_stdlog, "[%02x]", val); | |
c906108c | 1935 | --i; |
c5aa993b | 1936 | fetched++; |
c906108c SS |
1937 | } |
1938 | ++dumpaddr; | |
1939 | ++p; | |
1940 | } | |
c5aa993b JM |
1941 | ++p; /* skip a blank or other non hex char */ |
1942 | c = *p; | |
c906108c | 1943 | } |
c5aa993b JM |
1944 | if (fetched == 0) |
1945 | error ("Failed to read via monitor"); | |
2df3850c JM |
1946 | if (monitor_debug_p || remote_debug) |
1947 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c5aa993b | 1948 | return fetched; /* Return the number of bytes actually read */ |
c906108c | 1949 | } |
2df3850c | 1950 | monitor_debug ("MON scanning bytes\n"); |
c906108c SS |
1951 | |
1952 | for (i = len; i > 0; i--) | |
1953 | { | |
1954 | /* Skip non-hex chars, but bomb on end of string and newlines */ | |
1955 | ||
1956 | while (1) | |
1957 | { | |
1958 | if (isxdigit (*p)) | |
1959 | break; | |
1960 | ||
1961 | if (*p == '\000' || *p == '\n' || *p == '\r') | |
2df3850c JM |
1962 | monitor_error ("monitor_read_memory", |
1963 | "badly terminated response from monitor", | |
c906108c SS |
1964 | memaddr, resp_len, buf, 0); |
1965 | p++; | |
1966 | } | |
1967 | ||
1968 | val = strtoul (p, &p1, 16); | |
1969 | ||
1970 | if (val == 0 && p == p1) | |
2df3850c JM |
1971 | monitor_error ("monitor_read_memory", |
1972 | "bad value from monitor", | |
c906108c SS |
1973 | memaddr, resp_len, buf, 0); |
1974 | ||
1975 | *myaddr++ = val; | |
1976 | ||
1977 | if (i == 1) | |
1978 | break; | |
1979 | ||
1980 | p = p1; | |
1981 | } | |
1982 | ||
1983 | return len; | |
1984 | } | |
1985 | ||
0e7e8d51 KB |
1986 | /* Transfer LEN bytes between target address MEMADDR and GDB address |
1987 | MYADDR. Returns 0 for success, errno code for failure. TARGET is | |
1988 | unused. */ | |
1989 | ||
c906108c | 1990 | static int |
0e7e8d51 | 1991 | monitor_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write, |
29e57380 C |
1992 | struct mem_attrib *attrib ATTRIBUTE_UNUSED, |
1993 | struct target_ops *target ATTRIBUTE_UNUSED) | |
c906108c | 1994 | { |
4930751a C |
1995 | int res; |
1996 | ||
1997 | if (write) | |
1998 | { | |
1999 | if (current_monitor->flags & MO_HAS_BLOCKWRITES) | |
2000 | res = monitor_write_memory_block(memaddr, myaddr, len); | |
2001 | else | |
2002 | res = monitor_write_memory(memaddr, myaddr, len); | |
2003 | } | |
2004 | else | |
2005 | { | |
2006 | res = monitor_read_memory(memaddr, myaddr, len); | |
2007 | } | |
2008 | ||
2009 | return res; | |
c906108c SS |
2010 | } |
2011 | ||
2012 | static void | |
fba45db2 | 2013 | monitor_kill (void) |
c906108c | 2014 | { |
c5aa993b | 2015 | return; /* ignore attempts to kill target system */ |
c906108c SS |
2016 | } |
2017 | ||
2018 | /* All we actually do is set the PC to the start address of exec_bfd, and start | |
2019 | the program at that point. */ | |
2020 | ||
2021 | static void | |
fba45db2 | 2022 | monitor_create_inferior (char *exec_file, char *args, char **env) |
c906108c SS |
2023 | { |
2024 | if (args && (*args != '\000')) | |
2025 | error ("Args are not supported by the monitor."); | |
2026 | ||
2027 | first_time = 1; | |
2028 | clear_proceed_status (); | |
2029 | proceed (bfd_get_start_address (exec_bfd), TARGET_SIGNAL_0, 0); | |
2030 | } | |
2031 | ||
2032 | /* Clean up when a program exits. | |
2033 | The program actually lives on in the remote processor's RAM, and may be | |
2034 | run again without a download. Don't leave it full of breakpoint | |
2035 | instructions. */ | |
2036 | ||
2037 | static void | |
fba45db2 | 2038 | monitor_mourn_inferior (void) |
c906108c SS |
2039 | { |
2040 | unpush_target (targ_ops); | |
2041 | generic_mourn_inferior (); /* Do all the proper things now */ | |
2042 | } | |
2043 | ||
c906108c SS |
2044 | /* Tell the monitor to add a breakpoint. */ |
2045 | ||
2046 | static int | |
fba45db2 | 2047 | monitor_insert_breakpoint (CORE_ADDR addr, char *shadow) |
c906108c SS |
2048 | { |
2049 | int i; | |
2050 | unsigned char *bp; | |
2051 | int bplen; | |
2052 | ||
2df3850c JM |
2053 | monitor_debug ("MON inst bkpt %s\n", paddr (addr)); |
2054 | if (current_monitor->set_break == NULL) | |
c906108c SS |
2055 | error ("No set_break defined for this monitor"); |
2056 | ||
2057 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2058 | addr = ADDR_BITS_REMOVE (addr); | |
2059 | ||
2060 | /* Determine appropriate breakpoint size for this address. */ | |
2061 | bp = memory_breakpoint_from_pc (&addr, &bplen); | |
2062 | ||
9e086581 | 2063 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2064 | { |
2065 | if (breakaddr[i] == 0) | |
2066 | { | |
2067 | breakaddr[i] = addr; | |
2068 | monitor_read_memory (addr, shadow, bplen); | |
2069 | monitor_printf (current_monitor->set_break, addr); | |
2070 | monitor_expect_prompt (NULL, 0); | |
2071 | return 0; | |
2072 | } | |
2073 | } | |
2074 | ||
9e086581 | 2075 | error ("Too many breakpoints (> %d) for monitor.", current_monitor->num_breakpoints); |
c906108c SS |
2076 | } |
2077 | ||
2078 | /* Tell the monitor to remove a breakpoint. */ | |
2079 | ||
2080 | static int | |
fba45db2 | 2081 | monitor_remove_breakpoint (CORE_ADDR addr, char *shadow) |
c906108c SS |
2082 | { |
2083 | int i; | |
2084 | ||
2df3850c JM |
2085 | monitor_debug ("MON rmbkpt %s\n", paddr (addr)); |
2086 | if (current_monitor->clr_break == NULL) | |
c906108c SS |
2087 | error ("No clr_break defined for this monitor"); |
2088 | ||
2089 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2090 | addr = ADDR_BITS_REMOVE (addr); | |
2091 | ||
9e086581 | 2092 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2093 | { |
2094 | if (breakaddr[i] == addr) | |
2095 | { | |
2096 | breakaddr[i] = 0; | |
2097 | /* some monitors remove breakpoints based on the address */ | |
2098 | if (current_monitor->flags & MO_CLR_BREAK_USES_ADDR) | |
2099 | monitor_printf (current_monitor->clr_break, addr); | |
2100 | else if (current_monitor->flags & MO_CLR_BREAK_1_BASED) | |
2101 | monitor_printf (current_monitor->clr_break, i + 1); | |
2102 | else | |
2103 | monitor_printf (current_monitor->clr_break, i); | |
2104 | monitor_expect_prompt (NULL, 0); | |
2105 | return 0; | |
2106 | } | |
2107 | } | |
2108 | fprintf_unfiltered (gdb_stderr, | |
2df3850c JM |
2109 | "Can't find breakpoint associated with 0x%s\n", |
2110 | paddr_nz (addr)); | |
c906108c SS |
2111 | return 1; |
2112 | } | |
2113 | ||
2114 | /* monitor_wait_srec_ack -- wait for the target to send an acknowledgement for | |
2115 | an S-record. Return non-zero if the ACK is received properly. */ | |
2116 | ||
2117 | static int | |
fba45db2 | 2118 | monitor_wait_srec_ack (void) |
c906108c | 2119 | { |
d4f3574e | 2120 | int ch; |
c906108c SS |
2121 | |
2122 | if (current_monitor->flags & MO_SREC_ACK_PLUS) | |
2123 | { | |
2124 | return (readchar (timeout) == '+'); | |
2125 | } | |
2126 | else if (current_monitor->flags & MO_SREC_ACK_ROTATE) | |
2127 | { | |
2128 | /* Eat two backspaces, a "rotating" char (|/-\), and a space. */ | |
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 | if ((ch = readchar (1)) < 0) | |
2136 | return 0; | |
2137 | } | |
2138 | return 1; | |
2139 | } | |
2140 | ||
2141 | /* monitor_load -- download a file. */ | |
2142 | ||
2143 | static void | |
fba45db2 | 2144 | monitor_load (char *file, int from_tty) |
c906108c | 2145 | { |
2df3850c | 2146 | monitor_debug ("MON load\n"); |
c906108c | 2147 | |
2df3850c | 2148 | if (current_monitor->load_routine) |
c906108c SS |
2149 | current_monitor->load_routine (monitor_desc, file, hashmark); |
2150 | else | |
2151 | { /* The default is ascii S-records */ | |
2152 | int n; | |
2153 | unsigned long load_offset; | |
2154 | char buf[128]; | |
2155 | ||
2156 | /* enable user to specify address for downloading as 2nd arg to load */ | |
2157 | n = sscanf (file, "%s 0x%lx", buf, &load_offset); | |
2158 | if (n > 1) | |
2159 | file = buf; | |
2160 | else | |
2161 | load_offset = 0; | |
2162 | ||
2163 | monitor_printf (current_monitor->load); | |
2164 | if (current_monitor->loadresp) | |
2165 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
2166 | ||
2167 | load_srec (monitor_desc, file, (bfd_vma) load_offset, | |
2168 | 32, SREC_ALL, hashmark, | |
2169 | current_monitor->flags & MO_SREC_ACK ? | |
c5aa993b | 2170 | monitor_wait_srec_ack : NULL); |
c906108c SS |
2171 | |
2172 | monitor_expect_prompt (NULL, 0); | |
2173 | } | |
2174 | ||
2175 | /* Finally, make the PC point at the start address */ | |
2176 | ||
2177 | if (exec_bfd) | |
2178 | write_pc (bfd_get_start_address (exec_bfd)); | |
2179 | ||
2180 | inferior_pid = 0; /* No process now */ | |
2181 | ||
2182 | /* This is necessary because many things were based on the PC at the time that | |
2183 | we attached to the monitor, which is no longer valid now that we have loaded | |
2184 | new code (and just changed the PC). Another way to do this might be to call | |
2185 | normal_stop, except that the stack may not be valid, and things would get | |
2186 | horribly confused... */ | |
2187 | ||
2188 | clear_symtab_users (); | |
2189 | } | |
2190 | ||
2191 | static void | |
fba45db2 | 2192 | monitor_stop (void) |
c906108c | 2193 | { |
2df3850c | 2194 | monitor_debug ("MON stop\n"); |
c906108c SS |
2195 | if ((current_monitor->flags & MO_SEND_BREAK_ON_STOP) != 0) |
2196 | SERIAL_SEND_BREAK (monitor_desc); | |
2197 | if (current_monitor->stop) | |
2198 | monitor_printf_noecho (current_monitor->stop); | |
2199 | } | |
2200 | ||
96baa820 JM |
2201 | /* Put a COMMAND string out to MONITOR. Output from MONITOR is placed |
2202 | in OUTPUT until the prompt is seen. FIXME: We read the characters | |
2203 | ourseleves here cause of a nasty echo. */ | |
c906108c SS |
2204 | |
2205 | static void | |
96baa820 | 2206 | monitor_rcmd (char *command, |
d9fcf2fb | 2207 | struct ui_file *outbuf) |
c906108c SS |
2208 | { |
2209 | char *p; | |
2210 | int resp_len; | |
2211 | char buf[1000]; | |
2212 | ||
2213 | if (monitor_desc == NULL) | |
2214 | error ("monitor target not open."); | |
2215 | ||
2216 | p = current_monitor->prompt; | |
2217 | ||
2218 | /* Send the command. Note that if no args were supplied, then we're | |
2219 | just sending the monitor a newline, which is sometimes useful. */ | |
2220 | ||
96baa820 | 2221 | monitor_printf ("%s\r", (command ? command : "")); |
c906108c SS |
2222 | |
2223 | resp_len = monitor_expect_prompt (buf, sizeof buf); | |
2224 | ||
96baa820 | 2225 | fputs_unfiltered (buf, outbuf); /* Output the response */ |
c906108c SS |
2226 | } |
2227 | ||
2228 | /* Convert hex digit A to a number. */ | |
2229 | ||
2230 | #if 0 | |
2231 | static int | |
fba45db2 | 2232 | from_hex (int a) |
c5aa993b | 2233 | { |
c906108c SS |
2234 | if (a >= '0' && a <= '9') |
2235 | return a - '0'; | |
2236 | if (a >= 'a' && a <= 'f') | |
2237 | return a - 'a' + 10; | |
2238 | if (a >= 'A' && a <= 'F') | |
2239 | return a - 'A' + 10; | |
2240 | ||
2241 | error ("Reply contains invalid hex digit 0x%x", a); | |
2242 | } | |
2243 | #endif | |
2244 | ||
2245 | char * | |
fba45db2 | 2246 | monitor_get_dev_name (void) |
c906108c SS |
2247 | { |
2248 | return dev_name; | |
2249 | } | |
2250 | ||
2251 | static struct target_ops monitor_ops; | |
2252 | ||
2253 | static void | |
2254 | init_base_monitor_ops (void) | |
2255 | { | |
2256 | monitor_ops.to_shortname = NULL; | |
2257 | monitor_ops.to_longname = NULL; | |
2258 | monitor_ops.to_doc = NULL; | |
2259 | monitor_ops.to_open = NULL; | |
2260 | monitor_ops.to_close = monitor_close; | |
2261 | monitor_ops.to_attach = NULL; | |
2262 | monitor_ops.to_post_attach = NULL; | |
2263 | monitor_ops.to_require_attach = NULL; | |
2264 | monitor_ops.to_detach = monitor_detach; | |
2265 | monitor_ops.to_require_detach = NULL; | |
2266 | monitor_ops.to_resume = monitor_resume; | |
2267 | monitor_ops.to_wait = monitor_wait; | |
2268 | monitor_ops.to_post_wait = NULL; | |
2269 | monitor_ops.to_fetch_registers = monitor_fetch_registers; | |
2270 | monitor_ops.to_store_registers = monitor_store_registers; | |
2271 | monitor_ops.to_prepare_to_store = monitor_prepare_to_store; | |
2272 | monitor_ops.to_xfer_memory = monitor_xfer_memory; | |
2273 | monitor_ops.to_files_info = monitor_files_info; | |
2274 | monitor_ops.to_insert_breakpoint = monitor_insert_breakpoint; | |
2275 | monitor_ops.to_remove_breakpoint = monitor_remove_breakpoint; | |
2276 | monitor_ops.to_terminal_init = 0; | |
2277 | monitor_ops.to_terminal_inferior = 0; | |
2278 | monitor_ops.to_terminal_ours_for_output = 0; | |
2279 | monitor_ops.to_terminal_ours = 0; | |
2280 | monitor_ops.to_terminal_info = 0; | |
2281 | monitor_ops.to_kill = monitor_kill; | |
2282 | monitor_ops.to_load = monitor_load; | |
2283 | monitor_ops.to_lookup_symbol = 0; | |
2284 | monitor_ops.to_create_inferior = monitor_create_inferior; | |
2285 | monitor_ops.to_post_startup_inferior = NULL; | |
2286 | monitor_ops.to_acknowledge_created_inferior = NULL; | |
2287 | monitor_ops.to_clone_and_follow_inferior = NULL; | |
2288 | monitor_ops.to_post_follow_inferior_by_clone = NULL; | |
2289 | monitor_ops.to_insert_fork_catchpoint = NULL; | |
2290 | monitor_ops.to_remove_fork_catchpoint = NULL; | |
2291 | monitor_ops.to_insert_vfork_catchpoint = NULL; | |
2292 | monitor_ops.to_remove_vfork_catchpoint = NULL; | |
2293 | monitor_ops.to_has_forked = NULL; | |
2294 | monitor_ops.to_has_vforked = NULL; | |
2295 | monitor_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
2296 | monitor_ops.to_post_follow_vfork = NULL; | |
2297 | monitor_ops.to_insert_exec_catchpoint = NULL; | |
2298 | monitor_ops.to_remove_exec_catchpoint = NULL; | |
2299 | monitor_ops.to_has_execd = NULL; | |
2300 | monitor_ops.to_reported_exec_events_per_exec_call = NULL; | |
2301 | monitor_ops.to_has_exited = NULL; | |
2302 | monitor_ops.to_mourn_inferior = monitor_mourn_inferior; | |
2303 | monitor_ops.to_can_run = 0; | |
2304 | monitor_ops.to_notice_signals = 0; | |
2305 | monitor_ops.to_thread_alive = 0; | |
2306 | monitor_ops.to_stop = monitor_stop; | |
96baa820 | 2307 | monitor_ops.to_rcmd = monitor_rcmd; |
c906108c SS |
2308 | monitor_ops.to_pid_to_exec_file = NULL; |
2309 | monitor_ops.to_core_file_to_sym_file = NULL; | |
2310 | monitor_ops.to_stratum = process_stratum; | |
2311 | monitor_ops.DONT_USE = 0; | |
2312 | monitor_ops.to_has_all_memory = 1; | |
2313 | monitor_ops.to_has_memory = 1; | |
2314 | monitor_ops.to_has_stack = 1; | |
2315 | monitor_ops.to_has_registers = 1; | |
2316 | monitor_ops.to_has_execution = 1; | |
2317 | monitor_ops.to_sections = 0; | |
2318 | monitor_ops.to_sections_end = 0; | |
2319 | monitor_ops.to_magic = OPS_MAGIC; | |
c5aa993b | 2320 | } /* init_base_monitor_ops */ |
c906108c SS |
2321 | |
2322 | /* Init the target_ops structure pointed at by OPS */ | |
2323 | ||
2324 | void | |
fba45db2 | 2325 | init_monitor_ops (struct target_ops *ops) |
c906108c SS |
2326 | { |
2327 | if (monitor_ops.to_magic != OPS_MAGIC) | |
2328 | init_base_monitor_ops (); | |
2329 | ||
2330 | memcpy (ops, &monitor_ops, sizeof monitor_ops); | |
2331 | } | |
2332 | ||
2333 | /* Define additional commands that are usually only used by monitors. */ | |
2334 | ||
2335 | void | |
fba45db2 | 2336 | _initialize_remote_monitors (void) |
c906108c SS |
2337 | { |
2338 | init_base_monitor_ops (); | |
2339 | add_show_from_set (add_set_cmd ("hash", no_class, var_boolean, | |
c5aa993b | 2340 | (char *) &hashmark, |
c906108c SS |
2341 | "Set display of activity while downloading a file.\n\ |
2342 | When enabled, a hashmark \'#\' is displayed.", | |
c5aa993b | 2343 | &setlist), |
c906108c | 2344 | &showlist); |
2df3850c | 2345 | |
2df3850c | 2346 | add_show_from_set |
5d161b24 | 2347 | (add_set_cmd ("monitor", no_class, var_zinteger, |
2df3850c JM |
2348 | (char *) &monitor_debug_p, |
2349 | "Set debugging of remote monitor communication.\n\ | |
2350 | When enabled, communication between GDB and the remote monitor\n\ | |
5d161b24 DB |
2351 | is displayed.", &setdebuglist), |
2352 | &showdebuglist); | |
c906108c | 2353 | } |