Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Remote debugging interface for boot monitors, for GDB. |
0a65a603 | 2 | |
197e01b6 | 3 | Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
281b533b | 4 | 1999, 2000, 2001, 2002, 2006 Free Software Foundation, Inc. |
0a65a603 | 5 | |
c906108c SS |
6 | Contributed by Cygnus Support. Written by Rob Savoye for Cygnus. |
7 | Resurrected from the ashes by Stu Grossman. | |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b JM |
21 | You should have received a copy of the GNU General Public License |
22 | along with this program; if not, write to the Free Software | |
197e01b6 EZ |
23 | Foundation, Inc., 51 Franklin Street, Fifth Floor, |
24 | Boston, MA 02110-1301, USA. */ | |
c906108c SS |
25 | |
26 | /* This file was derived from various remote-* modules. It is a collection | |
27 | of generic support functions so GDB can talk directly to a ROM based | |
28 | monitor. This saves use from having to hack an exception based handler | |
8e1a459b | 29 | into existence, and makes for quick porting. |
c906108c SS |
30 | |
31 | This module talks to a debug monitor called 'MONITOR', which | |
32 | We communicate with MONITOR via either a direct serial line, or a TCP | |
33 | (or possibly TELNET) stream to a terminal multiplexor, | |
34 | which in turn talks to the target board. */ | |
35 | ||
36 | /* FIXME 32x64: This code assumes that registers and addresses are at | |
37 | most 32 bits long. If they can be larger, you will need to declare | |
38 | values as LONGEST and use %llx or some such to print values when | |
39 | building commands to send to the monitor. Since we don't know of | |
40 | any actual 64-bit targets with ROM monitors that use this code, | |
41 | it's not an issue right now. -sts 4/18/96 */ | |
42 | ||
43 | #include "defs.h" | |
44 | #include "gdbcore.h" | |
45 | #include "target.h" | |
60250e8b | 46 | #include "exceptions.h" |
c906108c SS |
47 | #include <signal.h> |
48 | #include <ctype.h> | |
49 | #include "gdb_string.h" | |
50 | #include <sys/types.h> | |
51 | #include "command.h" | |
52 | #include "serial.h" | |
53 | #include "monitor.h" | |
54 | #include "gdbcmd.h" | |
55 | #include "inferior.h" | |
88987551 | 56 | #include "gdb_regex.h" |
c906108c | 57 | #include "srec.h" |
4e052eda | 58 | #include "regcache.h" |
c906108c SS |
59 | |
60 | static char *dev_name; | |
61 | static struct target_ops *targ_ops; | |
62 | ||
a14ed312 | 63 | static void monitor_vsprintf (char *sndbuf, char *pattern, va_list args); |
c906108c | 64 | |
a14ed312 | 65 | static int readchar (int timeout); |
c906108c | 66 | |
a14ed312 KB |
67 | static void monitor_fetch_register (int regno); |
68 | static void monitor_store_register (int regno); | |
c906108c | 69 | |
2df3850c JM |
70 | static void monitor_printable_string (char *newstr, char *oldstr, int len); |
71 | static void monitor_error (char *function, char *message, CORE_ADDR memaddr, int len, char *string, int final_char); | |
a14ed312 | 72 | static void monitor_detach (char *args, int from_tty); |
39f77062 | 73 | static void monitor_resume (ptid_t ptid, int step, enum target_signal sig); |
a14ed312 KB |
74 | static void monitor_interrupt (int signo); |
75 | static void monitor_interrupt_twice (int signo); | |
76 | static void monitor_interrupt_query (void); | |
77 | static void monitor_wait_cleanup (void *old_timeout); | |
78 | ||
39f77062 | 79 | static ptid_t monitor_wait (ptid_t ptid, struct target_waitstatus *status); |
a14ed312 KB |
80 | static void monitor_fetch_registers (int regno); |
81 | static void monitor_store_registers (int regno); | |
82 | static void monitor_prepare_to_store (void); | |
18cf8b5b | 83 | static int monitor_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, |
29e57380 C |
84 | int write, |
85 | struct mem_attrib *attrib, | |
86 | struct target_ops *target); | |
a14ed312 | 87 | static void monitor_files_info (struct target_ops *ops); |
a14ed312 KB |
88 | static void monitor_kill (void); |
89 | static void monitor_load (char *file, int from_tty); | |
90 | static void monitor_mourn_inferior (void); | |
91 | static void monitor_stop (void); | |
92 | ||
93 | static int monitor_read_memory (CORE_ADDR addr, char *myaddr, int len); | |
94 | static int monitor_write_memory (CORE_ADDR addr, char *myaddr, int len); | |
95 | static int monitor_write_memory_bytes (CORE_ADDR addr, char *myaddr, int len); | |
96 | static int monitor_write_memory_block (CORE_ADDR memaddr, | |
97 | char *myaddr, int len); | |
98 | static int monitor_expect_regexp (struct re_pattern_buffer *pat, | |
99 | char *buf, int buflen); | |
100 | static void monitor_dump_regs (void); | |
c906108c | 101 | #if 0 |
a14ed312 KB |
102 | static int from_hex (int a); |
103 | static unsigned long get_hex_word (void); | |
c906108c | 104 | #endif |
a14ed312 | 105 | static void parse_register_dump (char *, int); |
c906108c SS |
106 | |
107 | static struct monitor_ops *current_monitor; | |
108 | ||
109 | static int hashmark; /* flag set by "set hash" */ | |
110 | ||
111 | static int timeout = 30; | |
112 | ||
113 | static int in_monitor_wait = 0; /* Non-zero means we are in monitor_wait() */ | |
114 | ||
c5aa993b | 115 | static void (*ofunc) (); /* Old SIGINT signal handler */ |
c906108c | 116 | |
9e086581 JM |
117 | static CORE_ADDR *breakaddr; |
118 | ||
c906108c SS |
119 | /* Descriptor for I/O to remote machine. Initialize it to NULL so |
120 | that monitor_open knows that we don't have a file open when the | |
121 | program starts. */ | |
122 | ||
ba3a8523 | 123 | static struct serial *monitor_desc = NULL; |
c906108c SS |
124 | |
125 | /* Pointer to regexp pattern matching data */ | |
126 | ||
127 | static struct re_pattern_buffer register_pattern; | |
128 | static char register_fastmap[256]; | |
129 | ||
130 | static struct re_pattern_buffer getmem_resp_delim_pattern; | |
131 | static char getmem_resp_delim_fastmap[256]; | |
132 | ||
1456ad8e AC |
133 | static struct re_pattern_buffer setmem_resp_delim_pattern; |
134 | static char setmem_resp_delim_fastmap[256]; | |
135 | ||
136 | static struct re_pattern_buffer setreg_resp_delim_pattern; | |
137 | static char setreg_resp_delim_fastmap[256]; | |
138 | ||
c906108c SS |
139 | static int dump_reg_flag; /* Non-zero means do a dump_registers cmd when |
140 | monitor_wait wakes up. */ | |
141 | ||
c5aa993b JM |
142 | static int first_time = 0; /* is this the first time we're executing after |
143 | gaving created the child proccess? */ | |
c906108c | 144 | |
d4f3574e SS |
145 | #define TARGET_BUF_SIZE 2048 |
146 | ||
2df3850c JM |
147 | /* Monitor specific debugging information. Typically only useful to |
148 | the developer of a new monitor interface. */ | |
c906108c | 149 | |
2df3850c JM |
150 | static void monitor_debug (const char *fmt, ...) ATTR_FORMAT(printf, 1, 2); |
151 | ||
152 | static int monitor_debug_p = 0; | |
153 | ||
154 | /* NOTE: This file alternates between monitor_debug_p and remote_debug | |
b2fa5097 | 155 | when determining if debug information is printed. Perhaps this |
2df3850c JM |
156 | could be simplified. */ |
157 | ||
158 | static void | |
159 | monitor_debug (const char *fmt, ...) | |
160 | { | |
161 | if (monitor_debug_p) | |
162 | { | |
163 | va_list args; | |
164 | va_start (args, fmt); | |
165 | vfprintf_filtered (gdb_stdlog, fmt, args); | |
166 | va_end (args); | |
167 | } | |
168 | } | |
169 | ||
170 | ||
171 | /* Convert a string into a printable representation, Return # byte in | |
172 | the new string. When LEN is >0 it specifies the size of the | |
173 | string. Otherwize strlen(oldstr) is used. */ | |
174 | ||
175 | static void | |
176 | monitor_printable_string (char *newstr, char *oldstr, int len) | |
c906108c | 177 | { |
c906108c | 178 | int ch; |
2df3850c JM |
179 | int i; |
180 | ||
181 | if (len <= 0) | |
182 | len = strlen (oldstr); | |
c906108c | 183 | |
2df3850c | 184 | for (i = 0; i < len; i++) |
c906108c | 185 | { |
2df3850c | 186 | ch = oldstr[i]; |
c906108c | 187 | switch (ch) |
c5aa993b | 188 | { |
c906108c SS |
189 | default: |
190 | if (isprint (ch)) | |
191 | *newstr++ = ch; | |
192 | ||
193 | else | |
194 | { | |
195 | sprintf (newstr, "\\x%02x", ch & 0xff); | |
196 | newstr += 4; | |
197 | } | |
198 | break; | |
199 | ||
c5aa993b JM |
200 | case '\\': |
201 | *newstr++ = '\\'; | |
202 | *newstr++ = '\\'; | |
203 | break; | |
204 | case '\b': | |
205 | *newstr++ = '\\'; | |
206 | *newstr++ = 'b'; | |
207 | break; | |
208 | case '\f': | |
209 | *newstr++ = '\\'; | |
210 | *newstr++ = 't'; | |
211 | break; | |
212 | case '\n': | |
213 | *newstr++ = '\\'; | |
214 | *newstr++ = 'n'; | |
215 | break; | |
216 | case '\r': | |
217 | *newstr++ = '\\'; | |
218 | *newstr++ = 'r'; | |
219 | break; | |
220 | case '\t': | |
221 | *newstr++ = '\\'; | |
222 | *newstr++ = 't'; | |
223 | break; | |
224 | case '\v': | |
225 | *newstr++ = '\\'; | |
226 | *newstr++ = 'v'; | |
227 | break; | |
228 | } | |
c906108c SS |
229 | } |
230 | ||
231 | *newstr++ = '\0'; | |
c906108c SS |
232 | } |
233 | ||
234 | /* Print monitor errors with a string, converting the string to printable | |
235 | representation. */ | |
236 | ||
237 | static void | |
2df3850c JM |
238 | monitor_error (char *function, char *message, |
239 | CORE_ADDR memaddr, int len, char *string, int final_char) | |
c906108c | 240 | { |
c5aa993b | 241 | int real_len = (len == 0 && string != (char *) 0) ? strlen (string) : len; |
c906108c | 242 | char *safe_string = alloca ((real_len * 4) + 1); |
2df3850c | 243 | monitor_printable_string (safe_string, string, real_len); |
c906108c SS |
244 | |
245 | if (final_char) | |
8a3fe4f8 | 246 | error (_("%s (0x%s): %s: %s%c"), function, paddr_nz (memaddr), message, safe_string, final_char); |
c906108c | 247 | else |
8a3fe4f8 | 248 | error (_("%s (0x%s): %s: %s"), function, paddr_nz (memaddr), message, safe_string); |
c906108c SS |
249 | } |
250 | ||
251 | /* Convert hex digit A to a number. */ | |
252 | ||
253 | static int | |
fba45db2 | 254 | fromhex (int a) |
c906108c SS |
255 | { |
256 | if (a >= '0' && a <= '9') | |
257 | return a - '0'; | |
258 | else if (a >= 'a' && a <= 'f') | |
259 | return a - 'a' + 10; | |
c5aa993b JM |
260 | else if (a >= 'A' && a <= 'F') |
261 | return a - 'A' + 10; | |
c906108c | 262 | else |
8a3fe4f8 | 263 | error (_("Invalid hex digit %d"), a); |
c906108c SS |
264 | } |
265 | ||
266 | /* monitor_vsprintf - similar to vsprintf but handles 64-bit addresses | |
267 | ||
268 | This function exists to get around the problem that many host platforms | |
269 | don't have a printf that can print 64-bit addresses. The %A format | |
270 | specification is recognized as a special case, and causes the argument | |
271 | to be printed as a 64-bit hexadecimal address. | |
272 | ||
273 | Only format specifiers of the form "[0-9]*[a-z]" are recognized. | |
274 | If it is a '%s' format, the argument is a string; otherwise the | |
275 | argument is assumed to be a long integer. | |
276 | ||
277 | %% is also turned into a single %. | |
c5aa993b JM |
278 | */ |
279 | ||
c906108c | 280 | static void |
fba45db2 | 281 | monitor_vsprintf (char *sndbuf, char *pattern, va_list args) |
c906108c SS |
282 | { |
283 | char format[10]; | |
284 | char fmt; | |
285 | char *p; | |
286 | int i; | |
287 | long arg_int; | |
288 | CORE_ADDR arg_addr; | |
289 | char *arg_string; | |
290 | ||
291 | for (p = pattern; *p; p++) | |
292 | { | |
293 | if (*p == '%') | |
294 | { | |
295 | /* Copy the format specifier to a separate buffer. */ | |
296 | format[0] = *p++; | |
297 | for (i = 1; *p >= '0' && *p <= '9' && i < (int) sizeof (format) - 2; | |
298 | i++, p++) | |
299 | format[i] = *p; | |
300 | format[i] = fmt = *p; | |
c5aa993b | 301 | format[i + 1] = '\0'; |
c906108c SS |
302 | |
303 | /* Fetch the next argument and print it. */ | |
304 | switch (fmt) | |
305 | { | |
306 | case '%': | |
307 | strcpy (sndbuf, "%"); | |
308 | break; | |
309 | case 'A': | |
310 | arg_addr = va_arg (args, CORE_ADDR); | |
311 | strcpy (sndbuf, paddr_nz (arg_addr)); | |
312 | break; | |
313 | case 's': | |
314 | arg_string = va_arg (args, char *); | |
315 | sprintf (sndbuf, format, arg_string); | |
316 | break; | |
317 | default: | |
318 | arg_int = va_arg (args, long); | |
319 | sprintf (sndbuf, format, arg_int); | |
320 | break; | |
321 | } | |
322 | sndbuf += strlen (sndbuf); | |
323 | } | |
324 | else | |
325 | *sndbuf++ = *p; | |
326 | } | |
327 | *sndbuf = '\0'; | |
328 | } | |
329 | ||
330 | ||
331 | /* monitor_printf_noecho -- Send data to monitor, but don't expect an echo. | |
332 | Works just like printf. */ | |
333 | ||
334 | void | |
c5aa993b | 335 | monitor_printf_noecho (char *pattern,...) |
c906108c SS |
336 | { |
337 | va_list args; | |
338 | char sndbuf[2000]; | |
339 | int len; | |
340 | ||
c906108c | 341 | va_start (args, pattern); |
c906108c SS |
342 | |
343 | monitor_vsprintf (sndbuf, pattern, args); | |
344 | ||
345 | len = strlen (sndbuf); | |
346 | if (len + 1 > sizeof sndbuf) | |
e2e0b3e5 | 347 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c | 348 | |
2df3850c | 349 | if (monitor_debug_p) |
c906108c SS |
350 | { |
351 | char *safe_string = (char *) alloca ((strlen (sndbuf) * 4) + 1); | |
2df3850c JM |
352 | monitor_printable_string (safe_string, sndbuf, 0); |
353 | fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string); | |
c906108c | 354 | } |
c5aa993b | 355 | |
c906108c SS |
356 | monitor_write (sndbuf, len); |
357 | } | |
358 | ||
359 | /* monitor_printf -- Send data to monitor and check the echo. Works just like | |
360 | printf. */ | |
361 | ||
362 | void | |
c5aa993b | 363 | monitor_printf (char *pattern,...) |
c906108c SS |
364 | { |
365 | va_list args; | |
366 | char sndbuf[2000]; | |
367 | int len; | |
368 | ||
c906108c | 369 | va_start (args, pattern); |
c906108c SS |
370 | |
371 | monitor_vsprintf (sndbuf, pattern, args); | |
372 | ||
373 | len = strlen (sndbuf); | |
374 | if (len + 1 > sizeof sndbuf) | |
e2e0b3e5 | 375 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c | 376 | |
2df3850c | 377 | if (monitor_debug_p) |
c906108c SS |
378 | { |
379 | char *safe_string = (char *) alloca ((len * 4) + 1); | |
2df3850c JM |
380 | monitor_printable_string (safe_string, sndbuf, 0); |
381 | fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string); | |
c906108c SS |
382 | } |
383 | ||
384 | monitor_write (sndbuf, len); | |
385 | ||
386 | /* We used to expect that the next immediate output was the characters we | |
387 | just output, but sometimes some extra junk appeared before the characters | |
388 | we expected, like an extra prompt, or a portmaster sending telnet negotiations. | |
389 | So, just start searching for what we sent, and skip anything unknown. */ | |
2df3850c JM |
390 | monitor_debug ("ExpectEcho\n"); |
391 | monitor_expect (sndbuf, (char *) 0, 0); | |
c906108c SS |
392 | } |
393 | ||
394 | ||
395 | /* Write characters to the remote system. */ | |
396 | ||
397 | void | |
fba45db2 | 398 | monitor_write (char *buf, int buflen) |
c906108c | 399 | { |
2cd58942 AC |
400 | if (serial_write (monitor_desc, buf, buflen)) |
401 | fprintf_unfiltered (gdb_stderr, "serial_write failed: %s\n", | |
c906108c SS |
402 | safe_strerror (errno)); |
403 | } | |
404 | ||
405 | ||
406 | /* Read a binary character from the remote system, doing all the fancy | |
407 | timeout stuff, but without interpreting the character in any way, | |
408 | and without printing remote debug information. */ | |
409 | ||
410 | int | |
fba45db2 | 411 | monitor_readchar (void) |
c906108c SS |
412 | { |
413 | int c; | |
414 | int looping; | |
415 | ||
416 | do | |
417 | { | |
418 | looping = 0; | |
2cd58942 | 419 | c = serial_readchar (monitor_desc, timeout); |
c906108c SS |
420 | |
421 | if (c >= 0) | |
c5aa993b | 422 | c &= 0xff; /* don't lose bit 7 */ |
c906108c SS |
423 | } |
424 | while (looping); | |
425 | ||
426 | if (c >= 0) | |
427 | return c; | |
428 | ||
429 | if (c == SERIAL_TIMEOUT) | |
8a3fe4f8 | 430 | error (_("Timeout reading from remote system.")); |
c906108c | 431 | |
e2e0b3e5 | 432 | perror_with_name (_("remote-monitor")); |
c906108c SS |
433 | } |
434 | ||
435 | ||
436 | /* Read a character from the remote system, doing all the fancy | |
437 | timeout stuff. */ | |
438 | ||
439 | static int | |
fba45db2 | 440 | readchar (int timeout) |
c906108c SS |
441 | { |
442 | int c; | |
c5aa993b JM |
443 | static enum |
444 | { | |
445 | last_random, last_nl, last_cr, last_crnl | |
446 | } | |
447 | state = last_random; | |
c906108c SS |
448 | int looping; |
449 | ||
450 | do | |
451 | { | |
452 | looping = 0; | |
2cd58942 | 453 | c = serial_readchar (monitor_desc, timeout); |
c906108c SS |
454 | |
455 | if (c >= 0) | |
456 | { | |
457 | c &= 0x7f; | |
c906108c SS |
458 | /* This seems to interfere with proper function of the |
459 | input stream */ | |
2df3850c | 460 | if (monitor_debug_p || remote_debug) |
c906108c SS |
461 | { |
462 | char buf[2]; | |
463 | buf[0] = c; | |
464 | buf[1] = '\0'; | |
465 | puts_debug ("read -->", buf, "<--"); | |
466 | } | |
c5aa993b | 467 | |
c906108c SS |
468 | } |
469 | ||
470 | /* Canonicialize \n\r combinations into one \r */ | |
471 | if ((current_monitor->flags & MO_HANDLE_NL) != 0) | |
472 | { | |
473 | if ((c == '\r' && state == last_nl) | |
474 | || (c == '\n' && state == last_cr)) | |
475 | { | |
476 | state = last_crnl; | |
477 | looping = 1; | |
478 | } | |
479 | else if (c == '\r') | |
480 | state = last_cr; | |
481 | else if (c != '\n') | |
482 | state = last_random; | |
483 | else | |
484 | { | |
485 | state = last_nl; | |
486 | c = '\r'; | |
487 | } | |
488 | } | |
489 | } | |
490 | while (looping); | |
491 | ||
492 | if (c >= 0) | |
493 | return c; | |
494 | ||
495 | if (c == SERIAL_TIMEOUT) | |
7a292a7a | 496 | #if 0 |
c906108c SS |
497 | /* I fail to see how detaching here can be useful */ |
498 | if (in_monitor_wait) /* Watchdog went off */ | |
499 | { | |
500 | target_mourn_inferior (); | |
8a3fe4f8 | 501 | error (_("GDB serial timeout has expired. Target detached.")); |
c906108c SS |
502 | } |
503 | else | |
504 | #endif | |
8a3fe4f8 | 505 | error (_("Timeout reading from remote system.")); |
c906108c | 506 | |
e2e0b3e5 | 507 | perror_with_name (_("remote-monitor")); |
c906108c SS |
508 | } |
509 | ||
510 | /* Scan input from the remote system, until STRING is found. If BUF is non- | |
511 | zero, then collect input until we have collected either STRING or BUFLEN-1 | |
512 | chars. In either case we terminate BUF with a 0. If input overflows BUF | |
513 | because STRING can't be found, return -1, else return number of chars in BUF | |
514 | (minus the terminating NUL). Note that in the non-overflow case, STRING | |
515 | will be at the end of BUF. */ | |
516 | ||
517 | int | |
fba45db2 | 518 | monitor_expect (char *string, char *buf, int buflen) |
c906108c SS |
519 | { |
520 | char *p = string; | |
521 | int obuflen = buflen; | |
522 | int c; | |
c906108c | 523 | |
2df3850c | 524 | if (monitor_debug_p) |
c906108c SS |
525 | { |
526 | char *safe_string = (char *) alloca ((strlen (string) * 4) + 1); | |
2df3850c JM |
527 | monitor_printable_string (safe_string, string, 0); |
528 | fprintf_unfiltered (gdb_stdlog, "MON Expecting '%s'\n", safe_string); | |
c906108c SS |
529 | } |
530 | ||
8edbea78 | 531 | immediate_quit++; |
c906108c SS |
532 | while (1) |
533 | { | |
534 | if (buf) | |
535 | { | |
536 | if (buflen < 2) | |
537 | { | |
538 | *buf = '\000'; | |
8edbea78 | 539 | immediate_quit--; |
c906108c SS |
540 | return -1; |
541 | } | |
542 | ||
543 | c = readchar (timeout); | |
544 | if (c == '\000') | |
545 | continue; | |
546 | *buf++ = c; | |
547 | buflen--; | |
548 | } | |
549 | else | |
550 | c = readchar (timeout); | |
551 | ||
552 | /* Don't expect any ^C sent to be echoed */ | |
c5aa993b | 553 | |
c906108c SS |
554 | if (*p == '\003' || c == *p) |
555 | { | |
556 | p++; | |
557 | if (*p == '\0') | |
558 | { | |
8edbea78 | 559 | immediate_quit--; |
c906108c SS |
560 | |
561 | if (buf) | |
562 | { | |
563 | *buf++ = '\000'; | |
564 | return obuflen - buflen; | |
565 | } | |
566 | else | |
567 | return 0; | |
568 | } | |
569 | } | |
c906108c SS |
570 | else |
571 | { | |
a0b3c4fd JM |
572 | /* We got a character that doesn't match the string. We need to |
573 | back up p, but how far? If we're looking for "..howdy" and the | |
574 | monitor sends "...howdy"? There's certainly a match in there, | |
575 | but when we receive the third ".", we won't find it if we just | |
576 | restart the matching at the beginning of the string. | |
577 | ||
578 | This is a Boyer-Moore kind of situation. We want to reset P to | |
579 | the end of the longest prefix of STRING that is a suffix of | |
580 | what we've read so far. In the example above, that would be | |
581 | ".." --- the longest prefix of "..howdy" that is a suffix of | |
582 | "...". This longest prefix could be the empty string, if C | |
583 | is nowhere to be found in STRING. | |
584 | ||
585 | If this longest prefix is not the empty string, it must contain | |
586 | C, so let's search from the end of STRING for instances of C, | |
587 | and see if the portion of STRING before that is a suffix of | |
588 | what we read before C. Actually, we can search backwards from | |
589 | p, since we know no prefix can be longer than that. | |
590 | ||
591 | Note that we can use STRING itself, along with C, as a record | |
592 | of what we've received so far. :) */ | |
593 | int i; | |
594 | ||
595 | for (i = (p - string) - 1; i >= 0; i--) | |
596 | if (string[i] == c) | |
597 | { | |
598 | /* Is this prefix a suffix of what we've read so far? | |
599 | In other words, does | |
600 | string[0 .. i-1] == string[p - i, p - 1]? */ | |
601 | if (! memcmp (string, p - i, i)) | |
602 | { | |
603 | p = string + i + 1; | |
604 | break; | |
605 | } | |
606 | } | |
607 | if (i < 0) | |
608 | p = string; | |
c906108c SS |
609 | } |
610 | } | |
611 | } | |
612 | ||
613 | /* Search for a regexp. */ | |
614 | ||
615 | static int | |
fba45db2 | 616 | monitor_expect_regexp (struct re_pattern_buffer *pat, char *buf, int buflen) |
c906108c SS |
617 | { |
618 | char *mybuf; | |
619 | char *p; | |
2df3850c | 620 | monitor_debug ("MON Expecting regexp\n"); |
c906108c SS |
621 | if (buf) |
622 | mybuf = buf; | |
623 | else | |
624 | { | |
d4f3574e SS |
625 | mybuf = alloca (TARGET_BUF_SIZE); |
626 | buflen = TARGET_BUF_SIZE; | |
c906108c SS |
627 | } |
628 | ||
629 | p = mybuf; | |
630 | while (1) | |
631 | { | |
632 | int retval; | |
633 | ||
634 | if (p - mybuf >= buflen) | |
635 | { /* Buffer about to overflow */ | |
636 | ||
637 | /* On overflow, we copy the upper half of the buffer to the lower half. Not | |
638 | great, but it usually works... */ | |
639 | ||
640 | memcpy (mybuf, mybuf + buflen / 2, buflen / 2); | |
641 | p = mybuf + buflen / 2; | |
642 | } | |
643 | ||
644 | *p++ = readchar (timeout); | |
645 | ||
646 | retval = re_search (pat, mybuf, p - mybuf, 0, p - mybuf, NULL); | |
647 | if (retval >= 0) | |
648 | return 1; | |
649 | } | |
650 | } | |
651 | ||
652 | /* Keep discarding input until we see the MONITOR prompt. | |
653 | ||
654 | The convention for dealing with the prompt is that you | |
655 | o give your command | |
656 | o *then* wait for the prompt. | |
657 | ||
658 | Thus the last thing that a procedure does with the serial line will | |
659 | be an monitor_expect_prompt(). Exception: monitor_resume does not | |
660 | wait for the prompt, because the terminal is being handed over to | |
661 | the inferior. However, the next thing which happens after that is | |
662 | a monitor_wait which does wait for the prompt. Note that this | |
663 | includes abnormal exit, e.g. error(). This is necessary to prevent | |
664 | getting into states from which we can't recover. */ | |
665 | ||
666 | int | |
fba45db2 | 667 | monitor_expect_prompt (char *buf, int buflen) |
c906108c | 668 | { |
2df3850c JM |
669 | monitor_debug ("MON Expecting prompt\n"); |
670 | return monitor_expect (current_monitor->prompt, buf, buflen); | |
c906108c SS |
671 | } |
672 | ||
673 | /* Get N 32-bit words from remote, each preceded by a space, and put | |
674 | them in registers starting at REGNO. */ | |
675 | ||
676 | #if 0 | |
677 | static unsigned long | |
fba45db2 | 678 | get_hex_word (void) |
c906108c SS |
679 | { |
680 | unsigned long val; | |
681 | int i; | |
682 | int ch; | |
683 | ||
684 | do | |
685 | ch = readchar (timeout); | |
c5aa993b | 686 | while (isspace (ch)); |
c906108c SS |
687 | |
688 | val = from_hex (ch); | |
689 | ||
690 | for (i = 7; i >= 1; i--) | |
691 | { | |
692 | ch = readchar (timeout); | |
693 | if (!isxdigit (ch)) | |
694 | break; | |
695 | val = (val << 4) | from_hex (ch); | |
696 | } | |
697 | ||
698 | return val; | |
699 | } | |
700 | #endif | |
701 | ||
702 | static void | |
fba45db2 KB |
703 | compile_pattern (char *pattern, struct re_pattern_buffer *compiled_pattern, |
704 | char *fastmap) | |
c906108c SS |
705 | { |
706 | int tmp; | |
707 | const char *val; | |
708 | ||
709 | compiled_pattern->fastmap = fastmap; | |
710 | ||
711 | tmp = re_set_syntax (RE_SYNTAX_EMACS); | |
712 | val = re_compile_pattern (pattern, | |
713 | strlen (pattern), | |
714 | compiled_pattern); | |
715 | re_set_syntax (tmp); | |
716 | ||
717 | if (val) | |
8a3fe4f8 | 718 | error (_("compile_pattern: Can't compile pattern string `%s': %s!"), pattern, val); |
c906108c SS |
719 | |
720 | if (fastmap) | |
721 | re_compile_fastmap (compiled_pattern); | |
722 | } | |
723 | ||
724 | /* Open a connection to a remote debugger. NAME is the filename used | |
725 | for communication. */ | |
726 | ||
727 | void | |
fba45db2 | 728 | monitor_open (char *args, struct monitor_ops *mon_ops, int from_tty) |
c906108c SS |
729 | { |
730 | char *name; | |
731 | char **p; | |
732 | ||
733 | if (mon_ops->magic != MONITOR_OPS_MAGIC) | |
8a3fe4f8 | 734 | error (_("Magic number of monitor_ops struct wrong.")); |
c906108c SS |
735 | |
736 | targ_ops = mon_ops->target; | |
737 | name = targ_ops->to_shortname; | |
738 | ||
739 | if (!args) | |
8a3fe4f8 AC |
740 | error (_("Use `target %s DEVICE-NAME' to use a serial port, or \n\ |
741 | `target %s HOST-NAME:PORT-NUMBER' to use a network connection."), name, name); | |
c906108c SS |
742 | |
743 | target_preopen (from_tty); | |
744 | ||
745 | /* Setup pattern for register dump */ | |
746 | ||
747 | if (mon_ops->register_pattern) | |
748 | compile_pattern (mon_ops->register_pattern, ®ister_pattern, | |
749 | register_fastmap); | |
750 | ||
751 | if (mon_ops->getmem.resp_delim) | |
752 | compile_pattern (mon_ops->getmem.resp_delim, &getmem_resp_delim_pattern, | |
753 | getmem_resp_delim_fastmap); | |
754 | ||
1456ad8e AC |
755 | if (mon_ops->setmem.resp_delim) |
756 | compile_pattern (mon_ops->setmem.resp_delim, &setmem_resp_delim_pattern, | |
757 | setmem_resp_delim_fastmap); | |
758 | ||
759 | if (mon_ops->setreg.resp_delim) | |
760 | compile_pattern (mon_ops->setreg.resp_delim, &setreg_resp_delim_pattern, | |
761 | setreg_resp_delim_fastmap); | |
762 | ||
c906108c SS |
763 | unpush_target (targ_ops); |
764 | ||
765 | if (dev_name) | |
b8c9b27d | 766 | xfree (dev_name); |
4fcf66da | 767 | dev_name = xstrdup (args); |
c906108c | 768 | |
2cd58942 | 769 | monitor_desc = serial_open (dev_name); |
c906108c SS |
770 | |
771 | if (!monitor_desc) | |
772 | perror_with_name (dev_name); | |
773 | ||
774 | if (baud_rate != -1) | |
775 | { | |
2cd58942 | 776 | if (serial_setbaudrate (monitor_desc, baud_rate)) |
c906108c | 777 | { |
2cd58942 | 778 | serial_close (monitor_desc); |
c906108c SS |
779 | perror_with_name (dev_name); |
780 | } | |
781 | } | |
c5aa993b | 782 | |
2cd58942 | 783 | serial_raw (monitor_desc); |
c906108c | 784 | |
2cd58942 | 785 | serial_flush_input (monitor_desc); |
c906108c SS |
786 | |
787 | /* some systems only work with 2 stop bits */ | |
788 | ||
2cd58942 | 789 | serial_setstopbits (monitor_desc, mon_ops->stopbits); |
c906108c SS |
790 | |
791 | current_monitor = mon_ops; | |
792 | ||
793 | /* See if we can wake up the monitor. First, try sending a stop sequence, | |
794 | then send the init strings. Last, remove all breakpoints. */ | |
795 | ||
796 | if (current_monitor->stop) | |
797 | { | |
798 | monitor_stop (); | |
799 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) | |
c5aa993b | 800 | { |
2df3850c | 801 | monitor_debug ("EXP Open echo\n"); |
c5aa993b JM |
802 | monitor_expect_prompt (NULL, 0); |
803 | } | |
c906108c SS |
804 | } |
805 | ||
806 | /* wake up the monitor and see if it's alive */ | |
807 | for (p = mon_ops->init; *p != NULL; p++) | |
808 | { | |
809 | /* Some of the characters we send may not be echoed, | |
c5aa993b JM |
810 | but we hope to get a prompt at the end of it all. */ |
811 | ||
c906108c | 812 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) |
c5aa993b | 813 | monitor_printf (*p); |
c906108c | 814 | else |
c5aa993b | 815 | monitor_printf_noecho (*p); |
c906108c SS |
816 | monitor_expect_prompt (NULL, 0); |
817 | } | |
818 | ||
2cd58942 | 819 | serial_flush_input (monitor_desc); |
c906108c | 820 | |
9e086581 JM |
821 | /* Alloc breakpoints */ |
822 | if (mon_ops->set_break != NULL) | |
823 | { | |
824 | if (mon_ops->num_breakpoints == 0) | |
825 | mon_ops->num_breakpoints = 8; | |
826 | ||
827 | breakaddr = (CORE_ADDR *) xmalloc (mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
828 | memset (breakaddr, 0, mon_ops->num_breakpoints * sizeof (CORE_ADDR)); | |
829 | } | |
830 | ||
c906108c SS |
831 | /* Remove all breakpoints */ |
832 | ||
833 | if (mon_ops->clr_all_break) | |
834 | { | |
835 | monitor_printf (mon_ops->clr_all_break); | |
836 | monitor_expect_prompt (NULL, 0); | |
837 | } | |
838 | ||
839 | if (from_tty) | |
a3f17187 | 840 | printf_unfiltered (_("Remote target %s connected to %s\n"), name, dev_name); |
c906108c SS |
841 | |
842 | push_target (targ_ops); | |
843 | ||
39f77062 | 844 | inferior_ptid = pid_to_ptid (42000); /* Make run command think we are busy... */ |
c906108c SS |
845 | |
846 | /* Give monitor_wait something to read */ | |
847 | ||
848 | monitor_printf (current_monitor->line_term); | |
849 | ||
c906108c SS |
850 | start_remote (); |
851 | } | |
852 | ||
853 | /* Close out all files and local state before this target loses | |
854 | control. */ | |
855 | ||
856 | void | |
fba45db2 | 857 | monitor_close (int quitting) |
c906108c SS |
858 | { |
859 | if (monitor_desc) | |
2cd58942 | 860 | serial_close (monitor_desc); |
9e086581 JM |
861 | |
862 | /* Free breakpoint memory */ | |
863 | if (breakaddr != NULL) | |
864 | { | |
b8c9b27d | 865 | xfree (breakaddr); |
9e086581 JM |
866 | breakaddr = NULL; |
867 | } | |
868 | ||
c906108c SS |
869 | monitor_desc = NULL; |
870 | } | |
871 | ||
872 | /* Terminate the open connection to the remote debugger. Use this | |
873 | when you want to detach and do something else with your gdb. */ | |
874 | ||
875 | static void | |
fba45db2 | 876 | monitor_detach (char *args, int from_tty) |
c906108c SS |
877 | { |
878 | pop_target (); /* calls monitor_close to do the real work */ | |
879 | if (from_tty) | |
a3f17187 | 880 | printf_unfiltered (_("Ending remote %s debugging\n"), target_shortname); |
c906108c SS |
881 | } |
882 | ||
883 | /* Convert VALSTR into the target byte-ordered value of REGNO and store it. */ | |
884 | ||
885 | char * | |
fba45db2 | 886 | monitor_supply_register (int regno, char *valstr) |
c906108c | 887 | { |
d4f3574e | 888 | ULONGEST val; |
123a958e | 889 | unsigned char regbuf[MAX_REGISTER_SIZE]; |
c906108c SS |
890 | char *p; |
891 | ||
4ce44c66 | 892 | val = 0; |
d4f3574e SS |
893 | p = valstr; |
894 | while (p && *p != '\0') | |
895 | { | |
896 | if (*p == '\r' || *p == '\n') | |
897 | { | |
898 | while (*p != '\0') | |
899 | p++; | |
900 | break; | |
901 | } | |
902 | if (isspace (*p)) | |
903 | { | |
904 | p++; | |
905 | continue; | |
906 | } | |
907 | if (!isxdigit (*p) && *p != 'x') | |
908 | { | |
909 | break; | |
910 | } | |
911 | ||
912 | val <<= 4; | |
913 | val += fromhex (*p++); | |
914 | } | |
2df3850c | 915 | monitor_debug ("Supplying Register %d %s\n", regno, valstr); |
c906108c | 916 | |
1fcef334 | 917 | if (val == 0 && valstr == p) |
8a3fe4f8 | 918 | error (_("monitor_supply_register (%d): bad value from monitor: %s."), |
c906108c SS |
919 | regno, valstr); |
920 | ||
921 | /* supply register stores in target byte order, so swap here */ | |
922 | ||
3acba339 | 923 | store_unsigned_integer (regbuf, register_size (current_gdbarch, regno), val); |
c906108c | 924 | |
23a6d369 | 925 | regcache_raw_supply (current_regcache, regno, regbuf); |
c906108c SS |
926 | |
927 | return p; | |
928 | } | |
929 | ||
930 | /* Tell the remote machine to resume. */ | |
931 | ||
c906108c | 932 | static void |
39f77062 | 933 | monitor_resume (ptid_t ptid, int step, enum target_signal sig) |
c906108c SS |
934 | { |
935 | /* Some monitors require a different command when starting a program */ | |
2df3850c | 936 | monitor_debug ("MON resume\n"); |
c906108c SS |
937 | if (current_monitor->flags & MO_RUN_FIRST_TIME && first_time == 1) |
938 | { | |
939 | first_time = 0; | |
940 | monitor_printf ("run\r"); | |
941 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) | |
c5aa993b | 942 | dump_reg_flag = 1; |
c906108c SS |
943 | return; |
944 | } | |
c906108c SS |
945 | if (step) |
946 | monitor_printf (current_monitor->step); | |
947 | else | |
948 | { | |
949 | if (current_monitor->continue_hook) | |
c5aa993b JM |
950 | (*current_monitor->continue_hook) (); |
951 | else | |
952 | monitor_printf (current_monitor->cont); | |
c906108c SS |
953 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) |
954 | dump_reg_flag = 1; | |
955 | } | |
956 | } | |
957 | ||
958 | /* Parse the output of a register dump command. A monitor specific | |
959 | regexp is used to extract individual register descriptions of the | |
960 | form REG=VAL. Each description is split up into a name and a value | |
961 | string which are passed down to monitor specific code. */ | |
962 | ||
963 | static void | |
fba45db2 | 964 | parse_register_dump (char *buf, int len) |
c906108c | 965 | { |
2df3850c JM |
966 | monitor_debug ("MON Parsing register dump\n"); |
967 | while (1) | |
c906108c SS |
968 | { |
969 | int regnamelen, vallen; | |
970 | char *regname, *val; | |
971 | /* Element 0 points to start of register name, and element 1 | |
c5aa993b | 972 | points to the start of the register value. */ |
c906108c SS |
973 | struct re_registers register_strings; |
974 | ||
975 | memset (®ister_strings, 0, sizeof (struct re_registers)); | |
976 | ||
977 | if (re_search (®ister_pattern, buf, len, 0, len, | |
978 | ®ister_strings) == -1) | |
979 | break; | |
980 | ||
981 | regnamelen = register_strings.end[1] - register_strings.start[1]; | |
982 | regname = buf + register_strings.start[1]; | |
983 | vallen = register_strings.end[2] - register_strings.start[2]; | |
984 | val = buf + register_strings.start[2]; | |
985 | ||
986 | current_monitor->supply_register (regname, regnamelen, val, vallen); | |
987 | ||
988 | buf += register_strings.end[0]; | |
989 | len -= register_strings.end[0]; | |
990 | } | |
991 | } | |
992 | ||
993 | /* Send ^C to target to halt it. Target will respond, and send us a | |
994 | packet. */ | |
995 | ||
996 | static void | |
fba45db2 | 997 | monitor_interrupt (int signo) |
c906108c SS |
998 | { |
999 | /* If this doesn't work, try more severe steps. */ | |
1000 | signal (signo, monitor_interrupt_twice); | |
c5aa993b | 1001 | |
2df3850c JM |
1002 | if (monitor_debug_p || remote_debug) |
1003 | fprintf_unfiltered (gdb_stdlog, "monitor_interrupt called\n"); | |
c906108c SS |
1004 | |
1005 | target_stop (); | |
1006 | } | |
1007 | ||
1008 | /* The user typed ^C twice. */ | |
1009 | ||
1010 | static void | |
fba45db2 | 1011 | monitor_interrupt_twice (int signo) |
c906108c SS |
1012 | { |
1013 | signal (signo, ofunc); | |
c5aa993b | 1014 | |
c906108c SS |
1015 | monitor_interrupt_query (); |
1016 | ||
1017 | signal (signo, monitor_interrupt); | |
1018 | } | |
1019 | ||
1020 | /* Ask the user what to do when an interrupt is received. */ | |
1021 | ||
1022 | static void | |
fba45db2 | 1023 | monitor_interrupt_query (void) |
c906108c SS |
1024 | { |
1025 | target_terminal_ours (); | |
1026 | ||
1027 | if (query ("Interrupted while waiting for the program.\n\ | |
1028 | Give up (and stop debugging it)? ")) | |
1029 | { | |
1030 | target_mourn_inferior (); | |
315a522e | 1031 | deprecated_throw_reason (RETURN_QUIT); |
c906108c SS |
1032 | } |
1033 | ||
1034 | target_terminal_inferior (); | |
1035 | } | |
1036 | ||
1037 | static void | |
fba45db2 | 1038 | monitor_wait_cleanup (void *old_timeout) |
c906108c | 1039 | { |
c5aa993b | 1040 | timeout = *(int *) old_timeout; |
c906108c SS |
1041 | signal (SIGINT, ofunc); |
1042 | in_monitor_wait = 0; | |
1043 | } | |
1044 | ||
1045 | ||
1046 | ||
a78f21af | 1047 | static void |
c5aa993b JM |
1048 | monitor_wait_filter (char *buf, |
1049 | int bufmax, | |
1050 | int *ext_resp_len, | |
a78f21af | 1051 | struct target_waitstatus *status) |
c906108c | 1052 | { |
c5aa993b | 1053 | int resp_len; |
c906108c SS |
1054 | do |
1055 | { | |
1056 | resp_len = monitor_expect_prompt (buf, bufmax); | |
c5aa993b | 1057 | *ext_resp_len = resp_len; |
c906108c SS |
1058 | |
1059 | if (resp_len <= 0) | |
1060 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1061 | } | |
1062 | while (resp_len < 0); | |
1063 | ||
1064 | /* Print any output characters that were preceded by ^O. */ | |
1065 | /* FIXME - This would be great as a user settabgle flag */ | |
2df3850c JM |
1066 | if (monitor_debug_p || remote_debug |
1067 | || current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
c906108c SS |
1068 | { |
1069 | int i; | |
1070 | ||
1071 | for (i = 0; i < resp_len - 1; i++) | |
1072 | if (buf[i] == 0x0f) | |
1073 | putchar_unfiltered (buf[++i]); | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | ||
1078 | ||
1079 | /* Wait until the remote machine stops, then return, storing status in | |
1080 | status just as `wait' would. */ | |
1081 | ||
39f77062 KB |
1082 | static ptid_t |
1083 | monitor_wait (ptid_t ptid, struct target_waitstatus *status) | |
c906108c SS |
1084 | { |
1085 | int old_timeout = timeout; | |
d4f3574e | 1086 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1087 | int resp_len; |
1088 | struct cleanup *old_chain; | |
1089 | ||
1090 | status->kind = TARGET_WAITKIND_EXITED; | |
1091 | status->value.integer = 0; | |
1092 | ||
1093 | old_chain = make_cleanup (monitor_wait_cleanup, &old_timeout); | |
2df3850c | 1094 | monitor_debug ("MON wait\n"); |
c906108c | 1095 | |
7a292a7a | 1096 | #if 0 |
c5aa993b JM |
1097 | /* This is somthing other than a maintenance command */ |
1098 | in_monitor_wait = 1; | |
c906108c SS |
1099 | timeout = watchdog > 0 ? watchdog : -1; |
1100 | #else | |
2df3850c | 1101 | timeout = -1; /* Don't time out -- user program is running. */ |
c906108c SS |
1102 | #endif |
1103 | ||
1104 | ofunc = (void (*)()) signal (SIGINT, monitor_interrupt); | |
1105 | ||
1106 | if (current_monitor->wait_filter) | |
c5aa993b JM |
1107 | (*current_monitor->wait_filter) (buf, sizeof (buf), &resp_len, status); |
1108 | else | |
1109 | monitor_wait_filter (buf, sizeof (buf), &resp_len, status); | |
1110 | ||
1111 | #if 0 /* Transferred to monitor wait filter */ | |
c906108c SS |
1112 | do |
1113 | { | |
1114 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1115 | ||
1116 | if (resp_len <= 0) | |
1117 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1118 | } | |
1119 | while (resp_len < 0); | |
1120 | ||
1121 | /* Print any output characters that were preceded by ^O. */ | |
1122 | /* FIXME - This would be great as a user settabgle flag */ | |
2df3850c JM |
1123 | if (monitor_debug_p || remote_debug |
1124 | || current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
c906108c SS |
1125 | { |
1126 | int i; | |
1127 | ||
1128 | for (i = 0; i < resp_len - 1; i++) | |
1129 | if (buf[i] == 0x0f) | |
1130 | putchar_unfiltered (buf[++i]); | |
1131 | } | |
c5aa993b | 1132 | #endif |
c906108c SS |
1133 | |
1134 | signal (SIGINT, ofunc); | |
1135 | ||
1136 | timeout = old_timeout; | |
1137 | #if 0 | |
1138 | if (dump_reg_flag && current_monitor->dump_registers) | |
1139 | { | |
1140 | dump_reg_flag = 0; | |
1141 | monitor_printf (current_monitor->dump_registers); | |
1142 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1143 | } | |
1144 | ||
1145 | if (current_monitor->register_pattern) | |
1146 | parse_register_dump (buf, resp_len); | |
1147 | #else | |
2df3850c | 1148 | monitor_debug ("Wait fetching registers after stop\n"); |
c5aa993b JM |
1149 | monitor_dump_regs (); |
1150 | #endif | |
c906108c SS |
1151 | |
1152 | status->kind = TARGET_WAITKIND_STOPPED; | |
1153 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1154 | ||
1155 | discard_cleanups (old_chain); | |
1156 | ||
1157 | in_monitor_wait = 0; | |
1158 | ||
39f77062 | 1159 | return inferior_ptid; |
c906108c SS |
1160 | } |
1161 | ||
1162 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns | |
1163 | errno value. */ | |
1164 | ||
1165 | static void | |
fba45db2 | 1166 | monitor_fetch_register (int regno) |
c906108c | 1167 | { |
444199e7 | 1168 | const char *name; |
86110418 MS |
1169 | char *zerobuf; |
1170 | char *regbuf; | |
c906108c SS |
1171 | int i; |
1172 | ||
d9d9c31f AC |
1173 | regbuf = alloca (MAX_REGISTER_SIZE * 2 + 1); |
1174 | zerobuf = alloca (MAX_REGISTER_SIZE); | |
1175 | memset (zerobuf, 0, MAX_REGISTER_SIZE); | |
86110418 | 1176 | |
1c617db8 GS |
1177 | if (current_monitor->regname != NULL) |
1178 | name = current_monitor->regname (regno); | |
1179 | else | |
1180 | name = current_monitor->regnames[regno]; | |
2df3850c | 1181 | monitor_debug ("MON fetchreg %d '%s'\n", regno, name ? name : "(null name)"); |
c906108c | 1182 | |
2df3850c | 1183 | if (!name || (*name == '\0')) |
7a292a7a | 1184 | { |
2df3850c | 1185 | monitor_debug ("No register known for %d\n", regno); |
23a6d369 | 1186 | regcache_raw_supply (current_regcache, regno, zerobuf); |
c906108c SS |
1187 | return; |
1188 | } | |
1189 | ||
1190 | /* send the register examine command */ | |
1191 | ||
1192 | monitor_printf (current_monitor->getreg.cmd, name); | |
1193 | ||
1194 | /* If RESP_DELIM is specified, we search for that as a leading | |
1195 | delimiter for the register value. Otherwise, we just start | |
1196 | searching from the start of the buf. */ | |
1197 | ||
1198 | if (current_monitor->getreg.resp_delim) | |
1199 | { | |
2df3850c JM |
1200 | monitor_debug ("EXP getreg.resp_delim\n"); |
1201 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); | |
c906108c SS |
1202 | /* Handle case of first 32 registers listed in pairs. */ |
1203 | if (current_monitor->flags & MO_32_REGS_PAIRED | |
7a292a7a | 1204 | && (regno & 1) != 0 && regno < 32) |
c5aa993b | 1205 | { |
2df3850c | 1206 | monitor_debug ("EXP getreg.resp_delim\n"); |
c906108c SS |
1207 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); |
1208 | } | |
1209 | } | |
1210 | ||
1211 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set */ | |
c5aa993b | 1212 | if (current_monitor->flags & MO_HEX_PREFIX) |
c906108c SS |
1213 | { |
1214 | int c; | |
1215 | c = readchar (timeout); | |
1216 | while (c == ' ') | |
1217 | c = readchar (timeout); | |
1218 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1219 | ; | |
1220 | else | |
8a3fe4f8 | 1221 | error (_("Bad value returned from monitor while fetching register %x."), |
c5aa993b | 1222 | regno); |
c906108c SS |
1223 | } |
1224 | ||
1225 | /* Read upto the maximum number of hex digits for this register, skipping | |
1226 | spaces, but stop reading if something else is seen. Some monitors | |
1227 | like to drop leading zeros. */ | |
1228 | ||
3acba339 | 1229 | for (i = 0; i < register_size (current_gdbarch, regno) * 2; i++) |
c906108c SS |
1230 | { |
1231 | int c; | |
1232 | c = readchar (timeout); | |
1233 | while (c == ' ') | |
1234 | c = readchar (timeout); | |
1235 | ||
1236 | if (!isxdigit (c)) | |
1237 | break; | |
1238 | ||
1239 | regbuf[i] = c; | |
1240 | } | |
1241 | ||
1242 | regbuf[i] = '\000'; /* terminate the number */ | |
2df3850c | 1243 | monitor_debug ("REGVAL '%s'\n", regbuf); |
c906108c SS |
1244 | |
1245 | /* If TERM is present, we wait for that to show up. Also, (if TERM | |
1246 | is present), we will send TERM_CMD if that is present. In any | |
1247 | case, we collect all of the output into buf, and then wait for | |
1248 | the normal prompt. */ | |
1249 | ||
1250 | if (current_monitor->getreg.term) | |
1251 | { | |
2df3850c JM |
1252 | monitor_debug ("EXP getreg.term\n"); |
1253 | monitor_expect (current_monitor->getreg.term, NULL, 0); /* get response */ | |
c906108c SS |
1254 | } |
1255 | ||
1256 | if (current_monitor->getreg.term_cmd) | |
c5aa993b | 1257 | { |
2df3850c JM |
1258 | monitor_debug ("EMIT getreg.term.cmd\n"); |
1259 | monitor_printf (current_monitor->getreg.term_cmd); | |
c906108c | 1260 | } |
c5aa993b JM |
1261 | if (!current_monitor->getreg.term || /* Already expected or */ |
1262 | current_monitor->getreg.term_cmd) /* ack expected */ | |
1263 | monitor_expect_prompt (NULL, 0); /* get response */ | |
c906108c SS |
1264 | |
1265 | monitor_supply_register (regno, regbuf); | |
1266 | } | |
1267 | ||
1268 | /* Sometimes, it takes several commands to dump the registers */ | |
1269 | /* This is a primitive for use by variations of monitor interfaces in | |
1270 | case they need to compose the operation. | |
c5aa993b JM |
1271 | */ |
1272 | int | |
1273 | monitor_dump_reg_block (char *block_cmd) | |
c906108c | 1274 | { |
d4f3574e | 1275 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1276 | int resp_len; |
1277 | monitor_printf (block_cmd); | |
1278 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1279 | parse_register_dump (buf, resp_len); | |
c5aa993b | 1280 | return 1; |
c906108c SS |
1281 | } |
1282 | ||
1283 | ||
1284 | /* Read the remote registers into the block regs. */ | |
1285 | /* Call the specific function if it has been provided */ | |
1286 | ||
1287 | static void | |
fba45db2 | 1288 | monitor_dump_regs (void) |
c906108c | 1289 | { |
d4f3574e | 1290 | char buf[TARGET_BUF_SIZE]; |
c906108c SS |
1291 | int resp_len; |
1292 | if (current_monitor->dumpregs) | |
c5aa993b JM |
1293 | (*(current_monitor->dumpregs)) (); /* call supplied function */ |
1294 | else if (current_monitor->dump_registers) /* default version */ | |
1295 | { | |
1296 | monitor_printf (current_monitor->dump_registers); | |
c906108c SS |
1297 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
1298 | parse_register_dump (buf, resp_len); | |
1299 | } | |
1300 | else | |
e2e0b3e5 | 1301 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); /* Need some way to read registers */ |
c906108c SS |
1302 | } |
1303 | ||
1304 | static void | |
fba45db2 | 1305 | monitor_fetch_registers (int regno) |
c906108c | 1306 | { |
2df3850c | 1307 | monitor_debug ("MON fetchregs\n"); |
c5aa993b | 1308 | if (current_monitor->getreg.cmd) |
c906108c SS |
1309 | { |
1310 | if (regno >= 0) | |
1311 | { | |
1312 | monitor_fetch_register (regno); | |
1313 | return; | |
1314 | } | |
1315 | ||
1316 | for (regno = 0; regno < NUM_REGS; regno++) | |
1317 | monitor_fetch_register (regno); | |
1318 | } | |
c5aa993b JM |
1319 | else |
1320 | { | |
1321 | monitor_dump_regs (); | |
1322 | } | |
c906108c SS |
1323 | } |
1324 | ||
1325 | /* Store register REGNO, or all if REGNO == 0. Return errno value. */ | |
1326 | ||
1327 | static void | |
fba45db2 | 1328 | monitor_store_register (int regno) |
c906108c | 1329 | { |
444199e7 | 1330 | const char *name; |
d4f3574e | 1331 | ULONGEST val; |
1c617db8 GS |
1332 | |
1333 | if (current_monitor->regname != NULL) | |
1334 | name = current_monitor->regname (regno); | |
1335 | else | |
1336 | name = current_monitor->regnames[regno]; | |
1337 | ||
c906108c | 1338 | if (!name || (*name == '\0')) |
c5aa993b | 1339 | { |
2df3850c JM |
1340 | monitor_debug ("MON Cannot store unknown register\n"); |
1341 | return; | |
c906108c SS |
1342 | } |
1343 | ||
1344 | val = read_register (regno); | |
5683e87a | 1345 | monitor_debug ("MON storeg %d %s\n", regno, |
3acba339 | 1346 | phex (val, register_size (current_gdbarch, regno))); |
c906108c SS |
1347 | |
1348 | /* send the register deposit command */ | |
1349 | ||
2df3850c | 1350 | if (current_monitor->flags & MO_REGISTER_VALUE_FIRST) |
c906108c SS |
1351 | monitor_printf (current_monitor->setreg.cmd, val, name); |
1352 | else if (current_monitor->flags & MO_SETREG_INTERACTIVE) | |
1353 | monitor_printf (current_monitor->setreg.cmd, name); | |
1354 | else | |
1355 | monitor_printf (current_monitor->setreg.cmd, name, val); | |
1356 | ||
1456ad8e AC |
1357 | if (current_monitor->setreg.resp_delim) |
1358 | { | |
1359 | monitor_debug ("EXP setreg.resp_delim\n"); | |
1360 | monitor_expect_regexp (&setreg_resp_delim_pattern, NULL, 0); | |
1361 | if (current_monitor->flags & MO_SETREG_INTERACTIVE) | |
1362 | monitor_printf ("%s\r", paddr_nz (val)); | |
1363 | } | |
c906108c | 1364 | if (current_monitor->setreg.term) |
c5aa993b | 1365 | { |
2df3850c JM |
1366 | monitor_debug ("EXP setreg.term\n"); |
1367 | monitor_expect (current_monitor->setreg.term, NULL, 0); | |
c906108c | 1368 | if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
2df3850c | 1369 | monitor_printf ("%s\r", paddr_nz (val)); |
c906108c SS |
1370 | monitor_expect_prompt (NULL, 0); |
1371 | } | |
1372 | else | |
1373 | monitor_expect_prompt (NULL, 0); | |
c5aa993b JM |
1374 | if (current_monitor->setreg.term_cmd) /* Mode exit required */ |
1375 | { | |
2df3850c | 1376 | monitor_debug ("EXP setreg_termcmd\n"); |
c5aa993b JM |
1377 | monitor_printf ("%s", current_monitor->setreg.term_cmd); |
1378 | monitor_expect_prompt (NULL, 0); | |
c906108c | 1379 | } |
c5aa993b | 1380 | } /* monitor_store_register */ |
c906108c SS |
1381 | |
1382 | /* Store the remote registers. */ | |
1383 | ||
1384 | static void | |
fba45db2 | 1385 | monitor_store_registers (int regno) |
c906108c SS |
1386 | { |
1387 | if (regno >= 0) | |
1388 | { | |
1389 | monitor_store_register (regno); | |
1390 | return; | |
1391 | } | |
1392 | ||
1393 | for (regno = 0; regno < NUM_REGS; regno++) | |
1394 | monitor_store_register (regno); | |
1395 | } | |
1396 | ||
1397 | /* Get ready to modify the registers array. On machines which store | |
1398 | individual registers, this doesn't need to do anything. On machines | |
1399 | which store all the registers in one fell swoop, this makes sure | |
1400 | that registers contains all the registers from the program being | |
1401 | debugged. */ | |
1402 | ||
1403 | static void | |
fba45db2 | 1404 | monitor_prepare_to_store (void) |
c906108c SS |
1405 | { |
1406 | /* Do nothing, since we can store individual regs */ | |
1407 | } | |
1408 | ||
1409 | static void | |
fba45db2 | 1410 | monitor_files_info (struct target_ops *ops) |
c906108c | 1411 | { |
a3f17187 | 1412 | printf_unfiltered (_("\tAttached to %s at %d baud.\n"), dev_name, baud_rate); |
c906108c SS |
1413 | } |
1414 | ||
1415 | static int | |
fba45db2 | 1416 | monitor_write_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1417 | { |
c5aa993b | 1418 | unsigned int val, hostval; |
c906108c SS |
1419 | char *cmd; |
1420 | int i; | |
1421 | ||
2df3850c | 1422 | monitor_debug ("MON write %d %s\n", len, paddr (memaddr)); |
c906108c | 1423 | |
2df3850c | 1424 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
c906108c SS |
1425 | memaddr = ADDR_BITS_REMOVE (memaddr); |
1426 | ||
1427 | /* Use memory fill command for leading 0 bytes. */ | |
1428 | ||
1429 | if (current_monitor->fill) | |
1430 | { | |
1431 | for (i = 0; i < len; i++) | |
1432 | if (myaddr[i] != 0) | |
1433 | break; | |
1434 | ||
1435 | if (i > 4) /* More than 4 zeros is worth doing */ | |
1436 | { | |
2df3850c JM |
1437 | monitor_debug ("MON FILL %d\n", i); |
1438 | if (current_monitor->flags & MO_FILL_USES_ADDR) | |
c5aa993b JM |
1439 | monitor_printf (current_monitor->fill, memaddr, (memaddr + i) - 1, 0); |
1440 | else | |
1441 | monitor_printf (current_monitor->fill, memaddr, i, 0); | |
c906108c SS |
1442 | |
1443 | monitor_expect_prompt (NULL, 0); | |
1444 | ||
1445 | return i; | |
1446 | } | |
1447 | } | |
1448 | ||
1449 | #if 0 | |
1450 | /* Can't actually use long longs if VAL is an int (nice idea, though). */ | |
1451 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->setmem.cmdll) | |
1452 | { | |
1453 | len = 8; | |
1454 | cmd = current_monitor->setmem.cmdll; | |
1455 | } | |
1456 | else | |
1457 | #endif | |
1458 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->setmem.cmdl) | |
1459 | { | |
1460 | len = 4; | |
1461 | cmd = current_monitor->setmem.cmdl; | |
1462 | } | |
1463 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->setmem.cmdw) | |
1464 | { | |
1465 | len = 2; | |
1466 | cmd = current_monitor->setmem.cmdw; | |
1467 | } | |
1468 | else | |
1469 | { | |
1470 | len = 1; | |
1471 | cmd = current_monitor->setmem.cmdb; | |
1472 | } | |
1473 | ||
1474 | val = extract_unsigned_integer (myaddr, len); | |
c5aa993b | 1475 | |
c906108c | 1476 | if (len == 4) |
c5aa993b JM |
1477 | { |
1478 | hostval = *(unsigned int *) myaddr; | |
2df3850c | 1479 | monitor_debug ("Hostval(%08x) val(%08x)\n", hostval, val); |
c906108c SS |
1480 | } |
1481 | ||
1482 | ||
1483 | if (current_monitor->flags & MO_NO_ECHO_ON_SETMEM) | |
1484 | monitor_printf_noecho (cmd, memaddr, val); | |
1485 | else if (current_monitor->flags & MO_SETMEM_INTERACTIVE) | |
1486 | { | |
1487 | ||
1488 | monitor_printf_noecho (cmd, memaddr); | |
1489 | ||
1456ad8e AC |
1490 | if (current_monitor->setmem.resp_delim) |
1491 | { | |
1492 | monitor_debug ("EXP setmem.resp_delim"); | |
1493 | monitor_expect_regexp (&setmem_resp_delim_pattern, NULL, 0); | |
1494 | monitor_printf ("%x\r", val); | |
1495 | } | |
c906108c | 1496 | if (current_monitor->setmem.term) |
c5aa993b | 1497 | { |
2df3850c | 1498 | monitor_debug ("EXP setmem.term"); |
c906108c SS |
1499 | monitor_expect (current_monitor->setmem.term, NULL, 0); |
1500 | monitor_printf ("%x\r", val); | |
1501 | } | |
1502 | if (current_monitor->setmem.term_cmd) | |
c5aa993b JM |
1503 | { /* Emit this to get out of the memory editing state */ |
1504 | monitor_printf ("%s", current_monitor->setmem.term_cmd); | |
c906108c SS |
1505 | /* Drop through to expecting a prompt */ |
1506 | } | |
1507 | } | |
1508 | else | |
1509 | monitor_printf (cmd, memaddr, val); | |
1510 | ||
1511 | monitor_expect_prompt (NULL, 0); | |
1512 | ||
1513 | return len; | |
1514 | } | |
1515 | ||
1516 | ||
c5aa993b | 1517 | static int |
fba45db2 | 1518 | monitor_write_memory_bytes (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1519 | { |
c5aa993b JM |
1520 | unsigned char val; |
1521 | int written = 0; | |
1522 | if (len == 0) | |
1523 | return 0; | |
c906108c | 1524 | /* Enter the sub mode */ |
c5aa993b JM |
1525 | monitor_printf (current_monitor->setmem.cmdb, memaddr); |
1526 | monitor_expect_prompt (NULL, 0); | |
c906108c SS |
1527 | while (len) |
1528 | { | |
c5aa993b JM |
1529 | val = *myaddr; |
1530 | monitor_printf ("%x\r", val); | |
1531 | myaddr++; | |
1532 | memaddr++; | |
1533 | written++; | |
c906108c | 1534 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1535 | monitor_expect_prompt (NULL, 0); |
1536 | len--; | |
c906108c SS |
1537 | } |
1538 | /* Now exit the sub mode */ | |
1539 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1540 | monitor_expect_prompt (NULL, 0); |
1541 | return written; | |
c906108c SS |
1542 | } |
1543 | ||
1544 | ||
1545 | static void | |
c5aa993b | 1546 | longlongendswap (unsigned char *a) |
c906108c | 1547 | { |
c5aa993b JM |
1548 | int i, j; |
1549 | unsigned char x; | |
1550 | i = 0; | |
1551 | j = 7; | |
c906108c | 1552 | while (i < 4) |
c5aa993b JM |
1553 | { |
1554 | x = *(a + i); | |
1555 | *(a + i) = *(a + j); | |
1556 | *(a + j) = x; | |
1557 | i++, j--; | |
c906108c SS |
1558 | } |
1559 | } | |
1560 | /* Format 32 chars of long long value, advance the pointer */ | |
c5aa993b JM |
1561 | static char *hexlate = "0123456789abcdef"; |
1562 | static char * | |
1563 | longlong_hexchars (unsigned long long value, | |
1564 | char *outbuff) | |
c906108c | 1565 | { |
c5aa993b JM |
1566 | if (value == 0) |
1567 | { | |
1568 | *outbuff++ = '0'; | |
1569 | return outbuff; | |
1570 | } | |
c906108c | 1571 | else |
c5aa993b JM |
1572 | { |
1573 | static unsigned char disbuf[8]; /* disassembly buffer */ | |
1574 | unsigned char *scan, *limit; /* loop controls */ | |
1575 | unsigned char c, nib; | |
1576 | int leadzero = 1; | |
1577 | scan = disbuf; | |
1578 | limit = scan + 8; | |
1579 | { | |
1580 | unsigned long long *dp; | |
1581 | dp = (unsigned long long *) scan; | |
1582 | *dp = value; | |
c906108c | 1583 | } |
c5aa993b | 1584 | longlongendswap (disbuf); /* FIXME: ONly on big endian hosts */ |
c906108c | 1585 | while (scan < limit) |
7a292a7a | 1586 | { |
c5aa993b | 1587 | c = *scan++; /* a byte of our long long value */ |
c906108c | 1588 | if (leadzero) |
7a292a7a SS |
1589 | { |
1590 | if (c == 0) | |
1591 | continue; | |
1592 | else | |
c5aa993b | 1593 | leadzero = 0; /* henceforth we print even zeroes */ |
7a292a7a | 1594 | } |
c5aa993b | 1595 | nib = c >> 4; /* high nibble bits */ |
7a292a7a | 1596 | *outbuff++ = hexlate[nib]; |
c5aa993b | 1597 | nib = c & 0x0f; /* low nibble bits */ |
7a292a7a | 1598 | *outbuff++ = hexlate[nib]; |
c906108c | 1599 | } |
c5aa993b | 1600 | return outbuff; |
c906108c | 1601 | } |
c5aa993b | 1602 | } /* longlong_hexchars */ |
c906108c SS |
1603 | |
1604 | ||
1605 | ||
1606 | /* I am only going to call this when writing virtual byte streams. | |
1607 | Which possably entails endian conversions | |
c5aa993b JM |
1608 | */ |
1609 | static int | |
fba45db2 | 1610 | monitor_write_memory_longlongs (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1611 | { |
c5aa993b JM |
1612 | static char hexstage[20]; /* At least 16 digits required, plus null */ |
1613 | char *endstring; | |
1614 | long long *llptr; | |
1615 | long long value; | |
1616 | int written = 0; | |
1617 | llptr = (unsigned long long *) myaddr; | |
1618 | if (len == 0) | |
1619 | return 0; | |
1620 | monitor_printf (current_monitor->setmem.cmdll, memaddr); | |
1621 | monitor_expect_prompt (NULL, 0); | |
1622 | while (len >= 8) | |
1623 | { | |
1624 | value = *llptr; | |
1625 | endstring = longlong_hexchars (*llptr, hexstage); | |
1626 | *endstring = '\0'; /* NUll terminate for printf */ | |
1627 | monitor_printf ("%s\r", hexstage); | |
1628 | llptr++; | |
1629 | memaddr += 8; | |
1630 | written += 8; | |
c906108c | 1631 | /* If we wanted to, here we could validate the address */ |
c5aa993b JM |
1632 | monitor_expect_prompt (NULL, 0); |
1633 | len -= 8; | |
c906108c SS |
1634 | } |
1635 | /* Now exit the sub mode */ | |
1636 | monitor_printf (current_monitor->getreg.term_cmd); | |
c5aa993b JM |
1637 | monitor_expect_prompt (NULL, 0); |
1638 | return written; | |
1639 | } /* */ | |
c906108c SS |
1640 | |
1641 | ||
1642 | ||
1643 | /* ----- MONITOR_WRITE_MEMORY_BLOCK ---------------------------- */ | |
1644 | /* This is for the large blocks of memory which may occur in downloading. | |
1645 | And for monitors which use interactive entry, | |
1646 | And for monitors which do not have other downloading methods. | |
1647 | Without this, we will end up calling monitor_write_memory many times | |
1648 | and do the entry and exit of the sub mode many times | |
1649 | This currently assumes... | |
c5aa993b JM |
1650 | MO_SETMEM_INTERACTIVE |
1651 | ! MO_NO_ECHO_ON_SETMEM | |
1652 | To use this, the you have to patch the monitor_cmds block with | |
1653 | this function. Otherwise, its not tuned up for use by all | |
1654 | monitor variations. | |
1655 | */ | |
c906108c | 1656 | |
c5aa993b | 1657 | static int |
fba45db2 | 1658 | monitor_write_memory_block (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c | 1659 | { |
c5aa993b JM |
1660 | int written; |
1661 | written = 0; | |
c906108c | 1662 | /* FIXME: This would be a good place to put the zero test */ |
c5aa993b | 1663 | #if 1 |
c906108c | 1664 | if ((len > 8) && (((len & 0x07)) == 0) && current_monitor->setmem.cmdll) |
c5aa993b JM |
1665 | { |
1666 | return monitor_write_memory_longlongs (memaddr, myaddr, len); | |
1667 | } | |
c906108c | 1668 | #endif |
c5aa993b JM |
1669 | written = monitor_write_memory_bytes (memaddr, myaddr, len); |
1670 | return written; | |
c906108c SS |
1671 | } |
1672 | ||
1673 | /* This is an alternate form of monitor_read_memory which is used for monitors | |
1674 | which can only read a single byte/word/etc. at a time. */ | |
1675 | ||
1676 | static int | |
fba45db2 | 1677 | monitor_read_memory_single (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c SS |
1678 | { |
1679 | unsigned int val; | |
c5aa993b | 1680 | char membuf[sizeof (int) * 2 + 1]; |
c906108c SS |
1681 | char *p; |
1682 | char *cmd; | |
c906108c | 1683 | |
2df3850c | 1684 | monitor_debug ("MON read single\n"); |
c906108c SS |
1685 | #if 0 |
1686 | /* Can't actually use long longs (nice idea, though). In fact, the | |
1687 | call to strtoul below will fail if it tries to convert a value | |
1688 | that's too big to fit in a long. */ | |
1689 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->getmem.cmdll) | |
1690 | { | |
1691 | len = 8; | |
1692 | cmd = current_monitor->getmem.cmdll; | |
1693 | } | |
1694 | else | |
1695 | #endif | |
1696 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->getmem.cmdl) | |
1697 | { | |
1698 | len = 4; | |
1699 | cmd = current_monitor->getmem.cmdl; | |
1700 | } | |
1701 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->getmem.cmdw) | |
1702 | { | |
1703 | len = 2; | |
1704 | cmd = current_monitor->getmem.cmdw; | |
1705 | } | |
1706 | else | |
1707 | { | |
1708 | len = 1; | |
1709 | cmd = current_monitor->getmem.cmdb; | |
1710 | } | |
1711 | ||
1712 | /* Send the examine command. */ | |
1713 | ||
1714 | monitor_printf (cmd, memaddr); | |
1715 | ||
1716 | /* If RESP_DELIM is specified, we search for that as a leading | |
1717 | delimiter for the memory value. Otherwise, we just start | |
1718 | searching from the start of the buf. */ | |
1719 | ||
1720 | if (current_monitor->getmem.resp_delim) | |
c5aa993b | 1721 | { |
2df3850c | 1722 | monitor_debug ("EXP getmem.resp_delim\n"); |
c906108c SS |
1723 | monitor_expect_regexp (&getmem_resp_delim_pattern, NULL, 0); |
1724 | } | |
1725 | ||
1726 | /* Now, read the appropriate number of hex digits for this loc, | |
1727 | skipping spaces. */ | |
1728 | ||
1729 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */ | |
c5aa993b | 1730 | if (current_monitor->flags & MO_HEX_PREFIX) |
c906108c SS |
1731 | { |
1732 | int c; | |
1733 | ||
1734 | c = readchar (timeout); | |
1735 | while (c == ' ') | |
1736 | c = readchar (timeout); | |
1737 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1738 | ; | |
1739 | else | |
2df3850c JM |
1740 | monitor_error ("monitor_read_memory_single", |
1741 | "bad response from monitor", | |
93d56215 | 1742 | memaddr, 0, NULL, 0); |
c906108c | 1743 | } |
c906108c | 1744 | |
93d56215 AC |
1745 | { |
1746 | int i; | |
1747 | for (i = 0; i < len * 2; i++) | |
1748 | { | |
1749 | int c; | |
c906108c | 1750 | |
93d56215 AC |
1751 | while (1) |
1752 | { | |
1753 | c = readchar (timeout); | |
1754 | if (isxdigit (c)) | |
1755 | break; | |
1756 | if (c == ' ') | |
1757 | continue; | |
1758 | ||
1759 | monitor_error ("monitor_read_memory_single", | |
1760 | "bad response from monitor", | |
1761 | memaddr, i, membuf, 0); | |
1762 | } | |
c906108c SS |
1763 | membuf[i] = c; |
1764 | } | |
93d56215 AC |
1765 | membuf[i] = '\000'; /* terminate the number */ |
1766 | } | |
c906108c SS |
1767 | |
1768 | /* If TERM is present, we wait for that to show up. Also, (if TERM is | |
1769 | present), we will send TERM_CMD if that is present. In any case, we collect | |
1770 | all of the output into buf, and then wait for the normal prompt. */ | |
1771 | ||
1772 | if (current_monitor->getmem.term) | |
1773 | { | |
c5aa993b | 1774 | monitor_expect (current_monitor->getmem.term, NULL, 0); /* get response */ |
c906108c SS |
1775 | |
1776 | if (current_monitor->getmem.term_cmd) | |
1777 | { | |
1778 | monitor_printf (current_monitor->getmem.term_cmd); | |
1779 | monitor_expect_prompt (NULL, 0); | |
1780 | } | |
1781 | } | |
1782 | else | |
c5aa993b | 1783 | monitor_expect_prompt (NULL, 0); /* get response */ |
c906108c SS |
1784 | |
1785 | p = membuf; | |
1786 | val = strtoul (membuf, &p, 16); | |
1787 | ||
1788 | if (val == 0 && membuf == p) | |
2df3850c JM |
1789 | monitor_error ("monitor_read_memory_single", |
1790 | "bad value from monitor", | |
c906108c SS |
1791 | memaddr, 0, membuf, 0); |
1792 | ||
1793 | /* supply register stores in target byte order, so swap here */ | |
1794 | ||
1795 | store_unsigned_integer (myaddr, len, val); | |
1796 | ||
1797 | return len; | |
1798 | } | |
1799 | ||
1800 | /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's | |
1801 | memory at MEMADDR. Returns length moved. Currently, we do no more | |
1802 | than 16 bytes at a time. */ | |
1803 | ||
1804 | static int | |
fba45db2 | 1805 | monitor_read_memory (CORE_ADDR memaddr, char *myaddr, int len) |
c906108c SS |
1806 | { |
1807 | unsigned int val; | |
1808 | char buf[512]; | |
1809 | char *p, *p1; | |
1810 | int resp_len; | |
1811 | int i; | |
1812 | CORE_ADDR dumpaddr; | |
1813 | ||
1814 | if (len <= 0) | |
1815 | { | |
2df3850c | 1816 | monitor_debug ("Zero length call to monitor_read_memory\n"); |
c906108c SS |
1817 | return 0; |
1818 | } | |
1819 | ||
2df3850c JM |
1820 | monitor_debug ("MON read block ta(%s) ha(%lx) %d\n", |
1821 | paddr_nz (memaddr), (long) myaddr, len); | |
c906108c SS |
1822 | |
1823 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1824 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
1825 | ||
1826 | if (current_monitor->flags & MO_GETMEM_READ_SINGLE) | |
1827 | return monitor_read_memory_single (memaddr, myaddr, len); | |
1828 | ||
1829 | len = min (len, 16); | |
1830 | ||
1831 | /* Some dumpers align the first data with the preceeding 16 | |
1832 | byte boundary. Some print blanks and start at the | |
1833 | requested boundary. EXACT_DUMPADDR | |
c5aa993b | 1834 | */ |
c906108c SS |
1835 | |
1836 | dumpaddr = (current_monitor->flags & MO_EXACT_DUMPADDR) | |
c5aa993b | 1837 | ? memaddr : memaddr & ~0x0f; |
c906108c SS |
1838 | |
1839 | /* See if xfer would cross a 16 byte boundary. If so, clip it. */ | |
1840 | if (((memaddr ^ (memaddr + len - 1)) & ~0xf) != 0) | |
1841 | len = ((memaddr + len) & ~0xf) - memaddr; | |
1842 | ||
1843 | /* send the memory examine command */ | |
1844 | ||
1845 | if (current_monitor->flags & MO_GETMEM_NEEDS_RANGE) | |
7a292a7a | 1846 | monitor_printf (current_monitor->getmem.cmdb, memaddr, memaddr + len); |
c906108c SS |
1847 | else if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1848 | monitor_printf (current_monitor->getmem.cmdb, dumpaddr); | |
1849 | else | |
1850 | monitor_printf (current_monitor->getmem.cmdb, memaddr, len); | |
1851 | ||
1852 | /* If TERM is present, we wait for that to show up. Also, (if TERM | |
1853 | is present), we will send TERM_CMD if that is present. In any | |
1854 | case, we collect all of the output into buf, and then wait for | |
1855 | the normal prompt. */ | |
1856 | ||
1857 | if (current_monitor->getmem.term) | |
1858 | { | |
c5aa993b | 1859 | resp_len = monitor_expect (current_monitor->getmem.term, buf, sizeof buf); /* get response */ |
c906108c SS |
1860 | |
1861 | if (resp_len <= 0) | |
2df3850c JM |
1862 | monitor_error ("monitor_read_memory", |
1863 | "excessive response from monitor", | |
c906108c SS |
1864 | memaddr, resp_len, buf, 0); |
1865 | ||
1866 | if (current_monitor->getmem.term_cmd) | |
1867 | { | |
2cd58942 | 1868 | serial_write (monitor_desc, current_monitor->getmem.term_cmd, |
c906108c SS |
1869 | strlen (current_monitor->getmem.term_cmd)); |
1870 | monitor_expect_prompt (NULL, 0); | |
1871 | } | |
1872 | } | |
1873 | else | |
c5aa993b | 1874 | resp_len = monitor_expect_prompt (buf, sizeof buf); /* get response */ |
c906108c SS |
1875 | |
1876 | p = buf; | |
1877 | ||
1878 | /* If RESP_DELIM is specified, we search for that as a leading | |
1879 | delimiter for the values. Otherwise, we just start searching | |
1880 | from the start of the buf. */ | |
1881 | ||
1882 | if (current_monitor->getmem.resp_delim) | |
1883 | { | |
1884 | int retval, tmp; | |
1885 | struct re_registers resp_strings; | |
2df3850c | 1886 | monitor_debug ("MON getmem.resp_delim %s\n", current_monitor->getmem.resp_delim); |
c906108c SS |
1887 | |
1888 | memset (&resp_strings, 0, sizeof (struct re_registers)); | |
1889 | tmp = strlen (p); | |
1890 | retval = re_search (&getmem_resp_delim_pattern, p, tmp, 0, tmp, | |
1891 | &resp_strings); | |
1892 | ||
1893 | if (retval < 0) | |
2df3850c JM |
1894 | monitor_error ("monitor_read_memory", |
1895 | "bad response from monitor", | |
c906108c SS |
1896 | memaddr, resp_len, buf, 0); |
1897 | ||
1898 | p += resp_strings.end[0]; | |
1899 | #if 0 | |
1900 | p = strstr (p, current_monitor->getmem.resp_delim); | |
1901 | if (!p) | |
2df3850c JM |
1902 | monitor_error ("monitor_read_memory", |
1903 | "bad response from monitor", | |
c906108c SS |
1904 | memaddr, resp_len, buf, 0); |
1905 | p += strlen (current_monitor->getmem.resp_delim); | |
1906 | #endif | |
1907 | } | |
2df3850c | 1908 | monitor_debug ("MON scanning %d ,%lx '%s'\n", len, (long) p, p); |
c906108c SS |
1909 | if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1910 | { | |
c5aa993b JM |
1911 | char c; |
1912 | int fetched = 0; | |
c906108c | 1913 | i = len; |
c5aa993b | 1914 | c = *p; |
c906108c | 1915 | |
c5aa993b JM |
1916 | |
1917 | while (!(c == '\000' || c == '\n' || c == '\r') && i > 0) | |
1918 | { | |
1919 | if (isxdigit (c)) | |
1920 | { | |
1921 | if ((dumpaddr >= memaddr) && (i > 0)) | |
1922 | { | |
1923 | val = fromhex (c) * 16 + fromhex (*(p + 1)); | |
c906108c | 1924 | *myaddr++ = val; |
2df3850c JM |
1925 | if (monitor_debug_p || remote_debug) |
1926 | fprintf_unfiltered (gdb_stdlog, "[%02x]", val); | |
c906108c | 1927 | --i; |
c5aa993b | 1928 | fetched++; |
c906108c SS |
1929 | } |
1930 | ++dumpaddr; | |
1931 | ++p; | |
1932 | } | |
c5aa993b JM |
1933 | ++p; /* skip a blank or other non hex char */ |
1934 | c = *p; | |
c906108c | 1935 | } |
c5aa993b | 1936 | if (fetched == 0) |
8a3fe4f8 | 1937 | error (_("Failed to read via monitor")); |
2df3850c JM |
1938 | if (monitor_debug_p || remote_debug) |
1939 | fprintf_unfiltered (gdb_stdlog, "\n"); | |
c5aa993b | 1940 | return fetched; /* Return the number of bytes actually read */ |
c906108c | 1941 | } |
2df3850c | 1942 | monitor_debug ("MON scanning bytes\n"); |
c906108c SS |
1943 | |
1944 | for (i = len; i > 0; i--) | |
1945 | { | |
1946 | /* Skip non-hex chars, but bomb on end of string and newlines */ | |
1947 | ||
1948 | while (1) | |
1949 | { | |
1950 | if (isxdigit (*p)) | |
1951 | break; | |
1952 | ||
1953 | if (*p == '\000' || *p == '\n' || *p == '\r') | |
2df3850c JM |
1954 | monitor_error ("monitor_read_memory", |
1955 | "badly terminated response from monitor", | |
c906108c SS |
1956 | memaddr, resp_len, buf, 0); |
1957 | p++; | |
1958 | } | |
1959 | ||
1960 | val = strtoul (p, &p1, 16); | |
1961 | ||
1962 | if (val == 0 && p == p1) | |
2df3850c JM |
1963 | monitor_error ("monitor_read_memory", |
1964 | "bad value from monitor", | |
c906108c SS |
1965 | memaddr, resp_len, buf, 0); |
1966 | ||
1967 | *myaddr++ = val; | |
1968 | ||
1969 | if (i == 1) | |
1970 | break; | |
1971 | ||
1972 | p = p1; | |
1973 | } | |
1974 | ||
1975 | return len; | |
1976 | } | |
1977 | ||
0e7e8d51 KB |
1978 | /* Transfer LEN bytes between target address MEMADDR and GDB address |
1979 | MYADDR. Returns 0 for success, errno code for failure. TARGET is | |
1980 | unused. */ | |
1981 | ||
c906108c | 1982 | static int |
18cf8b5b | 1983 | monitor_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int write, |
0a65a603 | 1984 | struct mem_attrib *attrib, struct target_ops *target) |
c906108c | 1985 | { |
4930751a C |
1986 | int res; |
1987 | ||
1988 | if (write) | |
1989 | { | |
1990 | if (current_monitor->flags & MO_HAS_BLOCKWRITES) | |
1991 | res = monitor_write_memory_block(memaddr, myaddr, len); | |
1992 | else | |
1993 | res = monitor_write_memory(memaddr, myaddr, len); | |
1994 | } | |
1995 | else | |
1996 | { | |
1997 | res = monitor_read_memory(memaddr, myaddr, len); | |
1998 | } | |
1999 | ||
2000 | return res; | |
c906108c SS |
2001 | } |
2002 | ||
2003 | static void | |
fba45db2 | 2004 | monitor_kill (void) |
c906108c | 2005 | { |
c5aa993b | 2006 | return; /* ignore attempts to kill target system */ |
c906108c SS |
2007 | } |
2008 | ||
281b533b | 2009 | /* All we actually do is set the PC to the start address of exec_bfd. */ |
c906108c SS |
2010 | |
2011 | static void | |
c27cda74 AC |
2012 | monitor_create_inferior (char *exec_file, char *args, char **env, |
2013 | int from_tty) | |
c906108c SS |
2014 | { |
2015 | if (args && (*args != '\000')) | |
8a3fe4f8 | 2016 | error (_("Args are not supported by the monitor.")); |
c906108c SS |
2017 | |
2018 | first_time = 1; | |
2019 | clear_proceed_status (); | |
281b533b | 2020 | write_pc (bfd_get_start_address (exec_bfd)); |
c906108c SS |
2021 | } |
2022 | ||
2023 | /* Clean up when a program exits. | |
2024 | The program actually lives on in the remote processor's RAM, and may be | |
2025 | run again without a download. Don't leave it full of breakpoint | |
2026 | instructions. */ | |
2027 | ||
2028 | static void | |
fba45db2 | 2029 | monitor_mourn_inferior (void) |
c906108c SS |
2030 | { |
2031 | unpush_target (targ_ops); | |
2032 | generic_mourn_inferior (); /* Do all the proper things now */ | |
2033 | } | |
2034 | ||
c906108c SS |
2035 | /* Tell the monitor to add a breakpoint. */ |
2036 | ||
2037 | static int | |
8181d85f | 2038 | monitor_insert_breakpoint (struct bp_target_info *bp_tgt) |
c906108c | 2039 | { |
8181d85f | 2040 | CORE_ADDR addr = bp_tgt->placed_address; |
c906108c | 2041 | int i; |
f4f9705a | 2042 | const unsigned char *bp; |
c906108c SS |
2043 | int bplen; |
2044 | ||
2df3850c JM |
2045 | monitor_debug ("MON inst bkpt %s\n", paddr (addr)); |
2046 | if (current_monitor->set_break == NULL) | |
8a3fe4f8 | 2047 | error (_("No set_break defined for this monitor")); |
c906108c SS |
2048 | |
2049 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2050 | addr = ADDR_BITS_REMOVE (addr); | |
2051 | ||
2052 | /* Determine appropriate breakpoint size for this address. */ | |
aaab4dba | 2053 | bp = gdbarch_breakpoint_from_pc (current_gdbarch, &addr, &bplen); |
8181d85f DJ |
2054 | bp_tgt->placed_address = addr; |
2055 | bp_tgt->placed_size = bplen; | |
c906108c | 2056 | |
9e086581 | 2057 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2058 | { |
2059 | if (breakaddr[i] == 0) | |
2060 | { | |
2061 | breakaddr[i] = addr; | |
c906108c SS |
2062 | monitor_printf (current_monitor->set_break, addr); |
2063 | monitor_expect_prompt (NULL, 0); | |
2064 | return 0; | |
2065 | } | |
2066 | } | |
2067 | ||
8a3fe4f8 | 2068 | error (_("Too many breakpoints (> %d) for monitor."), current_monitor->num_breakpoints); |
c906108c SS |
2069 | } |
2070 | ||
2071 | /* Tell the monitor to remove a breakpoint. */ | |
2072 | ||
2073 | static int | |
8181d85f | 2074 | monitor_remove_breakpoint (struct bp_target_info *bp_tgt) |
c906108c | 2075 | { |
8181d85f | 2076 | CORE_ADDR addr = bp_tgt->placed_address; |
c906108c SS |
2077 | int i; |
2078 | ||
2df3850c JM |
2079 | monitor_debug ("MON rmbkpt %s\n", paddr (addr)); |
2080 | if (current_monitor->clr_break == NULL) | |
8a3fe4f8 | 2081 | error (_("No clr_break defined for this monitor")); |
c906108c | 2082 | |
9e086581 | 2083 | for (i = 0; i < current_monitor->num_breakpoints; i++) |
c906108c SS |
2084 | { |
2085 | if (breakaddr[i] == addr) | |
2086 | { | |
2087 | breakaddr[i] = 0; | |
2088 | /* some monitors remove breakpoints based on the address */ | |
2089 | if (current_monitor->flags & MO_CLR_BREAK_USES_ADDR) | |
2090 | monitor_printf (current_monitor->clr_break, addr); | |
2091 | else if (current_monitor->flags & MO_CLR_BREAK_1_BASED) | |
2092 | monitor_printf (current_monitor->clr_break, i + 1); | |
2093 | else | |
2094 | monitor_printf (current_monitor->clr_break, i); | |
2095 | monitor_expect_prompt (NULL, 0); | |
2096 | return 0; | |
2097 | } | |
2098 | } | |
2099 | fprintf_unfiltered (gdb_stderr, | |
2df3850c JM |
2100 | "Can't find breakpoint associated with 0x%s\n", |
2101 | paddr_nz (addr)); | |
c906108c SS |
2102 | return 1; |
2103 | } | |
2104 | ||
2105 | /* monitor_wait_srec_ack -- wait for the target to send an acknowledgement for | |
2106 | an S-record. Return non-zero if the ACK is received properly. */ | |
2107 | ||
2108 | static int | |
fba45db2 | 2109 | monitor_wait_srec_ack (void) |
c906108c | 2110 | { |
d4f3574e | 2111 | int ch; |
c906108c SS |
2112 | |
2113 | if (current_monitor->flags & MO_SREC_ACK_PLUS) | |
2114 | { | |
2115 | return (readchar (timeout) == '+'); | |
2116 | } | |
2117 | else if (current_monitor->flags & MO_SREC_ACK_ROTATE) | |
2118 | { | |
2119 | /* Eat two backspaces, a "rotating" char (|/-\), and a space. */ | |
2120 | if ((ch = readchar (1)) < 0) | |
2121 | return 0; | |
2122 | if ((ch = readchar (1)) < 0) | |
2123 | return 0; | |
2124 | if ((ch = readchar (1)) < 0) | |
2125 | return 0; | |
2126 | if ((ch = readchar (1)) < 0) | |
2127 | return 0; | |
2128 | } | |
2129 | return 1; | |
2130 | } | |
2131 | ||
2132 | /* monitor_load -- download a file. */ | |
2133 | ||
2134 | static void | |
fba45db2 | 2135 | monitor_load (char *file, int from_tty) |
c906108c | 2136 | { |
2df3850c | 2137 | monitor_debug ("MON load\n"); |
c906108c | 2138 | |
2df3850c | 2139 | if (current_monitor->load_routine) |
c906108c SS |
2140 | current_monitor->load_routine (monitor_desc, file, hashmark); |
2141 | else | |
2142 | { /* The default is ascii S-records */ | |
2143 | int n; | |
2144 | unsigned long load_offset; | |
2145 | char buf[128]; | |
2146 | ||
2147 | /* enable user to specify address for downloading as 2nd arg to load */ | |
2148 | n = sscanf (file, "%s 0x%lx", buf, &load_offset); | |
2149 | if (n > 1) | |
2150 | file = buf; | |
2151 | else | |
2152 | load_offset = 0; | |
2153 | ||
2154 | monitor_printf (current_monitor->load); | |
2155 | if (current_monitor->loadresp) | |
2156 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
2157 | ||
2158 | load_srec (monitor_desc, file, (bfd_vma) load_offset, | |
2159 | 32, SREC_ALL, hashmark, | |
2160 | current_monitor->flags & MO_SREC_ACK ? | |
c5aa993b | 2161 | monitor_wait_srec_ack : NULL); |
c906108c SS |
2162 | |
2163 | monitor_expect_prompt (NULL, 0); | |
2164 | } | |
2165 | ||
fe490085 | 2166 | /* Finally, make the PC point at the start address */ |
c906108c SS |
2167 | if (exec_bfd) |
2168 | write_pc (bfd_get_start_address (exec_bfd)); | |
2169 | ||
e8816aac JB |
2170 | /* There used to be code here which would clear inferior_ptid and |
2171 | call clear_symtab_users. None of that should be necessary: | |
2172 | monitor targets should behave like remote protocol targets, and | |
2173 | since generic_load does none of those things, this function | |
2174 | shouldn't either. | |
2175 | ||
2176 | Furthermore, clearing inferior_ptid is *incorrect*. After doing | |
2177 | a load, we still have a valid connection to the monitor, with a | |
2178 | live processor state to fiddle with. The user can type | |
2179 | `continue' or `jump *start' and make the program run. If they do | |
2180 | these things, however, GDB will be talking to a running program | |
2181 | while inferior_ptid is null_ptid; this makes things like | |
2182 | reinit_frame_cache very confused. */ | |
c906108c SS |
2183 | } |
2184 | ||
2185 | static void | |
fba45db2 | 2186 | monitor_stop (void) |
c906108c | 2187 | { |
2df3850c | 2188 | monitor_debug ("MON stop\n"); |
c906108c | 2189 | if ((current_monitor->flags & MO_SEND_BREAK_ON_STOP) != 0) |
2cd58942 | 2190 | serial_send_break (monitor_desc); |
c906108c SS |
2191 | if (current_monitor->stop) |
2192 | monitor_printf_noecho (current_monitor->stop); | |
2193 | } | |
2194 | ||
96baa820 JM |
2195 | /* Put a COMMAND string out to MONITOR. Output from MONITOR is placed |
2196 | in OUTPUT until the prompt is seen. FIXME: We read the characters | |
2197 | ourseleves here cause of a nasty echo. */ | |
c906108c SS |
2198 | |
2199 | static void | |
96baa820 | 2200 | monitor_rcmd (char *command, |
d9fcf2fb | 2201 | struct ui_file *outbuf) |
c906108c SS |
2202 | { |
2203 | char *p; | |
2204 | int resp_len; | |
2205 | char buf[1000]; | |
2206 | ||
2207 | if (monitor_desc == NULL) | |
8a3fe4f8 | 2208 | error (_("monitor target not open.")); |
c906108c SS |
2209 | |
2210 | p = current_monitor->prompt; | |
2211 | ||
2212 | /* Send the command. Note that if no args were supplied, then we're | |
2213 | just sending the monitor a newline, which is sometimes useful. */ | |
2214 | ||
96baa820 | 2215 | monitor_printf ("%s\r", (command ? command : "")); |
c906108c SS |
2216 | |
2217 | resp_len = monitor_expect_prompt (buf, sizeof buf); | |
2218 | ||
96baa820 | 2219 | fputs_unfiltered (buf, outbuf); /* Output the response */ |
c906108c SS |
2220 | } |
2221 | ||
2222 | /* Convert hex digit A to a number. */ | |
2223 | ||
2224 | #if 0 | |
2225 | static int | |
fba45db2 | 2226 | from_hex (int a) |
c5aa993b | 2227 | { |
c906108c SS |
2228 | if (a >= '0' && a <= '9') |
2229 | return a - '0'; | |
2230 | if (a >= 'a' && a <= 'f') | |
2231 | return a - 'a' + 10; | |
2232 | if (a >= 'A' && a <= 'F') | |
2233 | return a - 'A' + 10; | |
2234 | ||
8a3fe4f8 | 2235 | error (_("Reply contains invalid hex digit 0x%x"), a); |
c906108c SS |
2236 | } |
2237 | #endif | |
2238 | ||
2239 | char * | |
fba45db2 | 2240 | monitor_get_dev_name (void) |
c906108c SS |
2241 | { |
2242 | return dev_name; | |
2243 | } | |
2244 | ||
2245 | static struct target_ops monitor_ops; | |
2246 | ||
2247 | static void | |
2248 | init_base_monitor_ops (void) | |
2249 | { | |
c906108c | 2250 | monitor_ops.to_close = monitor_close; |
c906108c | 2251 | monitor_ops.to_detach = monitor_detach; |
c906108c SS |
2252 | monitor_ops.to_resume = monitor_resume; |
2253 | monitor_ops.to_wait = monitor_wait; | |
c906108c SS |
2254 | monitor_ops.to_fetch_registers = monitor_fetch_registers; |
2255 | monitor_ops.to_store_registers = monitor_store_registers; | |
2256 | monitor_ops.to_prepare_to_store = monitor_prepare_to_store; | |
c8e73a31 | 2257 | monitor_ops.deprecated_xfer_memory = monitor_xfer_memory; |
c906108c SS |
2258 | monitor_ops.to_files_info = monitor_files_info; |
2259 | monitor_ops.to_insert_breakpoint = monitor_insert_breakpoint; | |
2260 | monitor_ops.to_remove_breakpoint = monitor_remove_breakpoint; | |
c906108c SS |
2261 | monitor_ops.to_kill = monitor_kill; |
2262 | monitor_ops.to_load = monitor_load; | |
c906108c | 2263 | monitor_ops.to_create_inferior = monitor_create_inferior; |
c906108c | 2264 | monitor_ops.to_mourn_inferior = monitor_mourn_inferior; |
c906108c | 2265 | monitor_ops.to_stop = monitor_stop; |
96baa820 | 2266 | monitor_ops.to_rcmd = monitor_rcmd; |
c906108c | 2267 | monitor_ops.to_stratum = process_stratum; |
c906108c SS |
2268 | monitor_ops.to_has_all_memory = 1; |
2269 | monitor_ops.to_has_memory = 1; | |
2270 | monitor_ops.to_has_stack = 1; | |
2271 | monitor_ops.to_has_registers = 1; | |
2272 | monitor_ops.to_has_execution = 1; | |
c906108c | 2273 | monitor_ops.to_magic = OPS_MAGIC; |
c5aa993b | 2274 | } /* init_base_monitor_ops */ |
c906108c SS |
2275 | |
2276 | /* Init the target_ops structure pointed at by OPS */ | |
2277 | ||
2278 | void | |
fba45db2 | 2279 | init_monitor_ops (struct target_ops *ops) |
c906108c SS |
2280 | { |
2281 | if (monitor_ops.to_magic != OPS_MAGIC) | |
2282 | init_base_monitor_ops (); | |
2283 | ||
2284 | memcpy (ops, &monitor_ops, sizeof monitor_ops); | |
2285 | } | |
2286 | ||
2287 | /* Define additional commands that are usually only used by monitors. */ | |
2288 | ||
a78f21af AC |
2289 | extern initialize_file_ftype _initialize_remote_monitors; /* -Wmissing-prototypes */ |
2290 | ||
c906108c | 2291 | void |
fba45db2 | 2292 | _initialize_remote_monitors (void) |
c906108c SS |
2293 | { |
2294 | init_base_monitor_ops (); | |
5bf193a2 AC |
2295 | add_setshow_boolean_cmd ("hash", no_class, &hashmark, _("\ |
2296 | Set display of activity while downloading a file."), _("\ | |
2297 | Show display of activity while downloading a file."), _("\ | |
2298 | When enabled, a hashmark \'#\' is displayed."), | |
2299 | NULL, | |
2300 | NULL, /* FIXME: i18n: */ | |
2301 | &setlist, &showlist); | |
2df3850c | 2302 | |
85c07804 AC |
2303 | add_setshow_zinteger_cmd ("monitor", no_class, &monitor_debug_p, _("\ |
2304 | Set debugging of remote monitor communication."), _("\ | |
2305 | Show debugging of remote monitor communication."), _("\ | |
2df3850c | 2306 | When enabled, communication between GDB and the remote monitor\n\ |
85c07804 AC |
2307 | is displayed."), |
2308 | NULL, | |
2309 | NULL, /* FIXME: i18n: */ | |
2310 | &setdebuglist, &showdebuglist); | |
c906108c | 2311 | } |