Commit | Line | Data |
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51d6a954 | 1 | /* Remote debugging interface for boot monitors, for GDB. |
7e9576e0 | 2 | Copyright 1990, 1991, 1992, 1993, 1995, 1996, 1997 |
b9ab37f0 MM |
3 | Free Software Foundation, Inc. |
4 | Contributed by Cygnus Support. Written by Rob Savoye for Cygnus. | |
5 | Resurrected from the ashes by Stu Grossman. | |
51d6a954 RS |
6 | |
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
5be86c56 | 21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
51d6a954 RS |
22 | |
23 | /* This file was derived from various remote-* modules. It is a collection | |
24 | of generic support functions so GDB can talk directly to a ROM based | |
25 | monitor. This saves use from having to hack an exception based handler | |
26 | into existance, and makes for quick porting. | |
27 | ||
28 | This module talks to a debug monitor called 'MONITOR', which | |
29 | We communicate with MONITOR via either a direct serial line, or a TCP | |
30 | (or possibly TELNET) stream to a terminal multiplexor, | |
431b7d5f | 31 | which in turn talks to the target board. */ |
51d6a954 | 32 | |
69159fad SS |
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 | ||
51d6a954 RS |
40 | #include "defs.h" |
41 | #include "gdbcore.h" | |
42 | #include "target.h" | |
43 | #include "wait.h" | |
4a430794 | 44 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
45 | #include <stdarg.h> |
46 | #else | |
51d6a954 | 47 | #include <varargs.h> |
85c613aa | 48 | #endif |
51d6a954 | 49 | #include <signal.h> |
b9ab37f0 | 50 | #include <ctype.h> |
2b576293 | 51 | #include "gdb_string.h" |
51d6a954 RS |
52 | #include <sys/types.h> |
53 | #include "command.h" | |
54 | #include "serial.h" | |
55 | #include "monitor.h" | |
1265e2d8 SG |
56 | #include "gdbcmd.h" |
57 | #include "inferior.h" | |
b9ab37f0 | 58 | #include "gnu-regex.h" |
45993f61 | 59 | #include "dcache.h" |
b9ab37f0 | 60 | #include "srec.h" |
51d6a954 | 61 | |
5db7cc25 MM |
62 | static char *dev_name; |
63 | static struct target_ops *targ_ops; | |
64 | ||
2a8b1fab JM |
65 | static void monitor_vsprintf PARAMS ((char *sndbuf, char *pattern, va_list args)); |
66 | ||
eba08643 C |
67 | static int readchar PARAMS ((int timeout)); |
68 | ||
8f078234 | 69 | static void monitor_command PARAMS ((char *args, int fromtty)); |
431b7d5f | 70 | |
1265e2d8 SG |
71 | static void monitor_fetch_register PARAMS ((int regno)); |
72 | static void monitor_store_register PARAMS ((int regno)); | |
73 | ||
a706069f SG |
74 | static void monitor_detach PARAMS ((char *args, int from_tty)); |
75 | static void monitor_resume PARAMS ((int pid, int step, enum target_signal sig)); | |
eba08643 C |
76 | static void monitor_interrupt PARAMS ((int signo)); |
77 | static void monitor_interrupt_twice PARAMS ((int signo)); | |
78 | static void monitor_interrupt_query PARAMS ((void)); | |
c8623080 | 79 | static void monitor_wait_cleanup PARAMS ((void *old_timeout)); |
eba08643 | 80 | |
a706069f SG |
81 | static int monitor_wait PARAMS ((int pid, struct target_waitstatus *status)); |
82 | static void monitor_fetch_registers PARAMS ((int regno)); | |
83 | static void monitor_store_registers PARAMS ((int regno)); | |
84 | static void monitor_prepare_to_store PARAMS ((void)); | |
85 | static int monitor_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len, int write, struct target_ops *target)); | |
86 | static void monitor_files_info PARAMS ((struct target_ops *ops)); | |
87 | static int monitor_insert_breakpoint PARAMS ((CORE_ADDR addr, char *shadow)); | |
88 | static int monitor_remove_breakpoint PARAMS ((CORE_ADDR addr, char *shadow)); | |
89 | static void monitor_kill PARAMS ((void)); | |
90 | static void monitor_load PARAMS ((char *file, int from_tty)); | |
91 | static void monitor_mourn_inferior PARAMS ((void)); | |
92 | static void monitor_stop PARAMS ((void)); | |
93 | ||
45993f61 SC |
94 | static int monitor_read_memory PARAMS ((CORE_ADDR addr, char *myaddr,int len)); |
95 | static int monitor_write_memory PARAMS ((CORE_ADDR addr, char *myaddr,int len)); | |
2a8b1fab JM |
96 | static int monitor_write_memory_bytes PARAMS ((CORE_ADDR addr, |
97 | char *myaddr,int len)); | |
98 | static int monitor_write_memory_block PARAMS(( | |
99 | CORE_ADDR memaddr , | |
100 | char * myaddr , | |
101 | int len)) ; | |
69159fad SS |
102 | static int monitor_expect_regexp PARAMS ((struct re_pattern_buffer *pat, |
103 | char *buf, int buflen)); | |
2a8b1fab | 104 | static void monitor_dump_regs PARAMS((void)) ; |
7e9576e0 | 105 | #if 0 |
8f078234 | 106 | static int from_hex PARAMS ((int a)); |
1265e2d8 | 107 | static unsigned long get_hex_word PARAMS ((void)); |
7e9576e0 MA |
108 | #endif |
109 | static void parse_register_dump PARAMS ((char *, int)); | |
06b8f5e4 | 110 | |
8f078234 | 111 | static struct monitor_ops *current_monitor; |
431b7d5f | 112 | |
774e5d7f | 113 | static int hashmark; /* flag set by "set hash" */ |
51d6a954 | 114 | |
1b552670 | 115 | static int timeout = 30; |
431b7d5f | 116 | |
4a430794 SS |
117 | static int in_monitor_wait = 0; /* Non-zero means we are in monitor_wait() */ |
118 | ||
eba08643 C |
119 | static void (*ofunc)(); /* Old SIGINT signal handler */ |
120 | ||
2a8b1fab JM |
121 | /* Extra remote debugging for developing a new rom monitor variation */ |
122 | #if ! defined(EXTRA_RDEBUG) | |
c8623080 | 123 | #define EXTRA_RDEBUG 0 |
2a8b1fab JM |
124 | #endif |
125 | #if EXTRA_RDEBUG | |
126 | #define RDEBUG(stuff) { if (remote_debug) printf stuff ; } | |
127 | #else | |
128 | #define RDEBUG(stuff) {} | |
129 | #endif | |
130 | ||
431b7d5f SS |
131 | /* Descriptor for I/O to remote machine. Initialize it to NULL so |
132 | that monitor_open knows that we don't have a file open when the | |
133 | program starts. */ | |
134 | ||
1265e2d8 | 135 | static serial_t monitor_desc = NULL; |
431b7d5f | 136 | |
a706069f SG |
137 | /* Pointer to regexp pattern matching data */ |
138 | ||
139 | static struct re_pattern_buffer register_pattern; | |
283dc598 | 140 | static char register_fastmap[256]; |
a706069f | 141 | |
283dc598 SG |
142 | static struct re_pattern_buffer getmem_resp_delim_pattern; |
143 | static char getmem_resp_delim_fastmap[256]; | |
a706069f SG |
144 | |
145 | static int dump_reg_flag; /* Non-zero means do a dump_registers cmd when | |
146 | monitor_wait wakes up. */ | |
147 | ||
45993f61 | 148 | static DCACHE *remote_dcache; |
012be3ce DP |
149 | static int first_time=0; /* is this the first time we're executing after |
150 | gaving created the child proccess? */ | |
45993f61 | 151 | |
7e9576e0 | 152 | /* Convert hex digit A to a number. */ |
b9ab37f0 | 153 | |
7e9576e0 MA |
154 | static int |
155 | fromhex (a) | |
156 | int a; | |
b9ab37f0 | 157 | { |
7e9576e0 MA |
158 | if (a >= '0' && a <= '9') |
159 | return a - '0'; | |
160 | else if (a >= 'a' && a <= 'f') | |
161 | return a - 'a' + 10; | |
2a8b1fab JM |
162 | else |
163 | if (a >= 'A' && a <= 'F') | |
164 | return a - 'A' + 10 ; | |
165 | else error ("Invalid hex digit %d", a); | |
69159fad | 166 | } |
b9ab37f0 | 167 | |
2a8b1fab JM |
168 | /* monitor_vsprintf - similar to vsprintf but handles 64-bit addresses |
169 | ||
170 | This function exists to get around the problem that many host platforms | |
171 | don't have a printf that can print 64-bit addresses. The %A format | |
172 | specification is recognized as a special case, and causes the argument | |
173 | to be printed as a 64-bit hexadecimal address. | |
174 | ||
175 | Only format specifiers of the form "[0-9]*[a-z]" are recognized. | |
176 | If it is a '%s' format, the argument is a string; otherwise the | |
177 | argument is assumed to be a long integer. | |
c8623080 AC |
178 | |
179 | %% is also turned into a single %. | |
2a8b1fab JM |
180 | */ |
181 | ||
182 | static void | |
183 | monitor_vsprintf (sndbuf, pattern, args) | |
184 | char *sndbuf; | |
185 | char *pattern; | |
186 | va_list args; | |
187 | { | |
188 | char format[10]; | |
189 | char fmt; | |
190 | char *p; | |
191 | int i; | |
192 | long arg_int; | |
193 | CORE_ADDR arg_addr; | |
194 | char *arg_string; | |
195 | ||
196 | for (p = pattern; *p; p++) | |
197 | { | |
198 | if (*p == '%') | |
199 | { | |
200 | /* Copy the format specifier to a separate buffer. */ | |
201 | format[0] = *p++; | |
202 | for (i = 1; *p >= '0' && *p <= '9' && i < (int) sizeof (format) - 2; | |
203 | i++, p++) | |
204 | format[i] = *p; | |
205 | format[i] = fmt = *p; | |
206 | format[i+1] = '\0'; | |
207 | ||
208 | /* Fetch the next argument and print it. */ | |
209 | switch (fmt) | |
210 | { | |
c8623080 AC |
211 | case '%': |
212 | strcpy (sndbuf, "%"); | |
213 | break; | |
2a8b1fab JM |
214 | case 'A': |
215 | arg_addr = va_arg (args, CORE_ADDR); | |
216 | strcpy (sndbuf, paddr_nz (arg_addr)); | |
217 | break; | |
218 | case 's': | |
219 | arg_string = va_arg (args, char *); | |
220 | sprintf (sndbuf, format, arg_string); | |
221 | break; | |
222 | default: | |
223 | arg_int = va_arg (args, long); | |
224 | sprintf (sndbuf, format, arg_int); | |
225 | break; | |
226 | } | |
227 | sndbuf += strlen (sndbuf); | |
228 | } | |
229 | else | |
230 | *sndbuf++ = *p; | |
231 | } | |
232 | *sndbuf = '\0'; | |
233 | } | |
234 | ||
235 | ||
eba08643 C |
236 | /* monitor_printf_noecho -- Send data to monitor, but don't expect an echo. |
237 | Works just like printf. */ | |
238 | ||
239 | void | |
4a430794 | 240 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
241 | monitor_printf_noecho (char *pattern, ...) |
242 | #else | |
eba08643 C |
243 | monitor_printf_noecho (va_alist) |
244 | va_dcl | |
85c613aa | 245 | #endif |
eba08643 C |
246 | { |
247 | va_list args; | |
eba08643 C |
248 | char sndbuf[2000]; |
249 | int len; | |
250 | ||
4a430794 | 251 | #if ANSI_PROTOTYPES |
85c613aa C |
252 | va_start (args, pattern); |
253 | #else | |
254 | char *pattern; | |
eba08643 | 255 | va_start (args); |
eba08643 | 256 | pattern = va_arg (args, char *); |
85c613aa | 257 | #endif |
eba08643 | 258 | |
2a8b1fab | 259 | monitor_vsprintf (sndbuf, pattern, args); |
eba08643 | 260 | |
2a8b1fab | 261 | #if 0 |
eba08643 | 262 | if (remote_debug > 0) |
7e9576e0 | 263 | puts_debug ("sent -->", sndbuf, "<--"); |
2a8b1fab JM |
264 | #endif |
265 | RDEBUG(("sent[%s]\n",sndbuf)) ; | |
266 | ||
eba08643 C |
267 | len = strlen (sndbuf); |
268 | ||
269 | if (len + 1 > sizeof sndbuf) | |
270 | abort (); | |
271 | ||
1a31a33a | 272 | monitor_write (sndbuf, len); |
eba08643 C |
273 | } |
274 | ||
275 | /* monitor_printf -- Send data to monitor and check the echo. Works just like | |
276 | printf. */ | |
431b7d5f | 277 | |
774e5d7f | 278 | void |
4a430794 | 279 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
280 | monitor_printf (char *pattern, ...) |
281 | #else | |
774e5d7f | 282 | monitor_printf (va_alist) |
51d6a954 | 283 | va_dcl |
85c613aa | 284 | #endif |
51d6a954 RS |
285 | { |
286 | va_list args; | |
eba08643 | 287 | char sndbuf[2000]; |
774e5d7f | 288 | int len; |
51d6a954 | 289 | |
4a430794 | 290 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
291 | va_start (args, pattern); |
292 | #else | |
293 | char *pattern; | |
431b7d5f | 294 | va_start (args); |
431b7d5f | 295 | pattern = va_arg (args, char *); |
85c613aa | 296 | #endif |
51d6a954 | 297 | |
2a8b1fab | 298 | monitor_vsprintf (sndbuf, pattern, args); |
51d6a954 | 299 | |
2a8b1fab | 300 | #if 0 |
1265e2d8 | 301 | if (remote_debug > 0) |
7e9576e0 | 302 | puts_debug ("sent -->", sndbuf, "<--"); |
2a8b1fab JM |
303 | #endif |
304 | RDEBUG(("sent[%s]\n",sndbuf)) | |
eba08643 | 305 | len = strlen (sndbuf); |
eba08643 | 306 | if (len + 1 > sizeof sndbuf) |
774e5d7f | 307 | abort (); |
431b7d5f | 308 | |
1a31a33a | 309 | monitor_write (sndbuf, len); |
eba08643 | 310 | |
69159fad SS |
311 | /* We used to expect that the next immediate output was the characters we |
312 | just output, but sometimes some extra junk appeared before the characters | |
313 | we expected, like an extra prompt, or a portmaster sending telnet negotiations. | |
314 | So, just start searching for what we sent, and skip anything unknown. */ | |
2a8b1fab | 315 | RDEBUG(("ExpectEcho\n")) |
69159fad | 316 | monitor_expect (sndbuf, (char *)0, 0); |
e6fa5bd6 RS |
317 | } |
318 | ||
1a31a33a MA |
319 | |
320 | /* Write characters to the remote system. */ | |
321 | ||
322 | void | |
323 | monitor_write (buf, buflen) | |
324 | char *buf; | |
325 | int buflen; | |
326 | { | |
327 | if (SERIAL_WRITE(monitor_desc, buf, buflen)) | |
328 | fprintf_unfiltered (stderr, "SERIAL_WRITE failed: %s\n", safe_strerror (errno)); | |
329 | } | |
330 | ||
331 | ||
332 | /* Read a binary character from the remote system, doing all the fancy | |
333 | timeout stuff, but without interpreting the character in any way, | |
334 | and without printing remote debug information. */ | |
335 | ||
336 | int | |
337 | monitor_readchar () | |
338 | { | |
339 | int c; | |
340 | int looping; | |
341 | ||
342 | do | |
343 | { | |
344 | looping = 0; | |
345 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
346 | ||
347 | if (c >= 0) | |
348 | c &= 0xff; /* don't lose bit 7 */ | |
349 | } | |
350 | while (looping); | |
351 | ||
352 | if (c >= 0) | |
353 | return c; | |
354 | ||
355 | if (c == SERIAL_TIMEOUT) | |
356 | error ("Timeout reading from remote system."); | |
357 | ||
358 | perror_with_name ("remote-monitor"); | |
359 | } | |
360 | ||
361 | ||
431b7d5f SS |
362 | /* Read a character from the remote system, doing all the fancy |
363 | timeout stuff. */ | |
364 | ||
51d6a954 | 365 | static int |
431b7d5f | 366 | readchar (timeout) |
51d6a954 RS |
367 | int timeout; |
368 | { | |
369 | int c; | |
69159fad SS |
370 | static enum { last_random, last_nl, last_cr, last_crnl } state = last_random; |
371 | int looping; | |
51d6a954 | 372 | |
69159fad SS |
373 | do |
374 | { | |
375 | looping = 0; | |
376 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
51d6a954 | 377 | |
69159fad SS |
378 | if (c >= 0) |
379 | { | |
380 | c &= 0x7f; | |
2a8b1fab JM |
381 | #if 0 |
382 | /* This seems to interfere with proper function of the | |
383 | input stream */ | |
69159fad SS |
384 | if (remote_debug > 0) |
385 | { | |
386 | char buf[2]; | |
387 | buf[0] = c; | |
388 | buf[1] = '\0'; | |
7e9576e0 | 389 | puts_debug ("read -->", buf, "<--"); |
69159fad | 390 | } |
2a8b1fab JM |
391 | |
392 | #endif | |
69159fad SS |
393 | } |
394 | ||
395 | /* Canonicialize \n\r combinations into one \r */ | |
396 | if ((current_monitor->flags & MO_HANDLE_NL) != 0) | |
397 | { | |
398 | if ((c == '\r' && state == last_nl) | |
399 | || (c == '\n' && state == last_cr)) | |
400 | { | |
401 | state = last_crnl; | |
402 | looping = 1; | |
403 | } | |
404 | else if (c == '\r') | |
405 | state = last_cr; | |
406 | else if (c != '\n') | |
407 | state = last_random; | |
408 | else | |
409 | { | |
410 | state = last_nl; | |
411 | c = '\r'; | |
412 | } | |
413 | } | |
414 | } | |
415 | while (looping); | |
51d6a954 RS |
416 | |
417 | if (c >= 0) | |
69159fad | 418 | return c; |
51d6a954 | 419 | |
431b7d5f | 420 | if (c == SERIAL_TIMEOUT) |
2a8b1fab | 421 | #if 0 /* MAINTENANCE_CMDS */ |
1c3cd1b0 | 422 | /* I fail to see how detaching here can be useful */ |
4a430794 SS |
423 | if (in_monitor_wait) /* Watchdog went off */ |
424 | { | |
425 | target_mourn_inferior (); | |
2a8b1fab | 426 | error ("GDB serial timeout has expired. Target detached.\n"); |
4a430794 SS |
427 | } |
428 | else | |
429 | #endif | |
430 | error ("Timeout reading from remote system."); | |
a706069f | 431 | |
431b7d5f | 432 | perror_with_name ("remote-monitor"); |
51d6a954 RS |
433 | } |
434 | ||
1265e2d8 | 435 | /* Scan input from the remote system, until STRING is found. If BUF is non- |
a706069f SG |
436 | zero, then collect input until we have collected either STRING or BUFLEN-1 |
437 | chars. In either case we terminate BUF with a 0. If input overflows BUF | |
438 | because STRING can't be found, return -1, else return number of chars in BUF | |
439 | (minus the terminating NUL). Note that in the non-overflow case, STRING | |
440 | will be at the end of BUF. */ | |
431b7d5f | 441 | |
774e5d7f SS |
442 | int |
443 | monitor_expect (string, buf, buflen) | |
51d6a954 | 444 | char *string; |
1265e2d8 SG |
445 | char *buf; |
446 | int buflen; | |
51d6a954 RS |
447 | { |
448 | char *p = string; | |
1265e2d8 | 449 | int obuflen = buflen; |
51d6a954 | 450 | int c; |
8665f3dc | 451 | extern struct target_ops *targ_ops; |
2a8b1fab | 452 | RDEBUG(("MON Expecting '%s'\n",string)) ; |
51d6a954 | 453 | |
51d6a954 | 454 | immediate_quit = 1; |
431b7d5f SS |
455 | while (1) |
456 | { | |
1265e2d8 | 457 | if (buf) |
431b7d5f | 458 | { |
a706069f | 459 | if (buflen < 2) |
431b7d5f | 460 | { |
a706069f | 461 | *buf = '\000'; |
431b7d5f | 462 | immediate_quit = 0; |
1265e2d8 | 463 | return -1; |
431b7d5f | 464 | } |
1265e2d8 SG |
465 | |
466 | c = readchar (timeout); | |
283dc598 SG |
467 | if (c == '\000') |
468 | continue; | |
1265e2d8 SG |
469 | *buf++ = c; |
470 | buflen--; | |
431b7d5f SS |
471 | } |
472 | else | |
1265e2d8 SG |
473 | c = readchar (timeout); |
474 | ||
69159fad SS |
475 | /* Don't expect any ^C sent to be echoed */ |
476 | ||
477 | if (*p == '\003' || c == *p) | |
431b7d5f | 478 | { |
69159fad | 479 | p++; |
1265e2d8 | 480 | if (*p == '\0') |
431b7d5f | 481 | { |
1265e2d8 SG |
482 | immediate_quit = 0; |
483 | ||
a706069f SG |
484 | if (buf) |
485 | { | |
486 | *buf++ = '\000'; | |
487 | return obuflen - buflen; | |
488 | } | |
489 | else | |
490 | return 0; | |
431b7d5f | 491 | } |
1265e2d8 | 492 | } |
8665f3dc MS |
493 | else if ((c == '\021' || c == '\023') && |
494 | (strcmp(targ_ops->to_shortname, "m32r") == 0)) | |
495 | { /* m32r monitor emits random DC1/DC3 chars */ | |
496 | continue; | |
497 | } | |
1265e2d8 SG |
498 | else |
499 | { | |
431b7d5f | 500 | p = string; |
1265e2d8 SG |
501 | if (c == *p) |
502 | p++; | |
431b7d5f | 503 | } |
51d6a954 | 504 | } |
51d6a954 RS |
505 | } |
506 | ||
283dc598 SG |
507 | /* Search for a regexp. */ |
508 | ||
69159fad | 509 | static int |
283dc598 SG |
510 | monitor_expect_regexp (pat, buf, buflen) |
511 | struct re_pattern_buffer *pat; | |
512 | char *buf; | |
513 | int buflen; | |
514 | { | |
515 | char *mybuf; | |
516 | char *p; | |
2a8b1fab | 517 | RDEBUG(("MON Expecting regexp\n")) ; |
283dc598 SG |
518 | if (buf) |
519 | mybuf = buf; | |
520 | else | |
521 | { | |
522 | mybuf = alloca (1024); | |
523 | buflen = 1024; | |
524 | } | |
525 | ||
526 | p = mybuf; | |
527 | while (1) | |
528 | { | |
529 | int retval; | |
530 | ||
531 | if (p - mybuf >= buflen) | |
532 | { /* Buffer about to overflow */ | |
533 | ||
534 | /* On overflow, we copy the upper half of the buffer to the lower half. Not | |
535 | great, but it usually works... */ | |
536 | ||
537 | memcpy (mybuf, mybuf + buflen / 2, buflen / 2); | |
538 | p = mybuf + buflen / 2; | |
539 | } | |
540 | ||
541 | *p++ = readchar (timeout); | |
542 | ||
543 | retval = re_search (pat, mybuf, p - mybuf, 0, p - mybuf, NULL); | |
544 | if (retval >= 0) | |
545 | return 1; | |
546 | } | |
547 | } | |
548 | ||
51d6a954 RS |
549 | /* Keep discarding input until we see the MONITOR prompt. |
550 | ||
551 | The convention for dealing with the prompt is that you | |
552 | o give your command | |
553 | o *then* wait for the prompt. | |
554 | ||
15f13cd0 DE |
555 | Thus the last thing that a procedure does with the serial line will |
556 | be an monitor_expect_prompt(). Exception: monitor_resume does not | |
557 | wait for the prompt, because the terminal is being handed over to | |
558 | the inferior. However, the next thing which happens after that is | |
559 | a monitor_wait which does wait for the prompt. Note that this | |
560 | includes abnormal exit, e.g. error(). This is necessary to prevent | |
561 | getting into states from which we can't recover. */ | |
431b7d5f | 562 | |
774e5d7f SS |
563 | int |
564 | monitor_expect_prompt (buf, buflen) | |
1265e2d8 SG |
565 | char *buf; |
566 | int buflen; | |
51d6a954 | 567 | { |
2a8b1fab | 568 | RDEBUG(("MON Expecting prompt\n")) |
f7ce02f4 | 569 | return monitor_expect (current_monitor->prompt, buf, buflen); |
51d6a954 RS |
570 | } |
571 | ||
431b7d5f SS |
572 | /* Get N 32-bit words from remote, each preceded by a space, and put |
573 | them in registers starting at REGNO. */ | |
574 | ||
7e9576e0 | 575 | #if 0 |
1265e2d8 | 576 | static unsigned long |
51d6a954 RS |
577 | get_hex_word () |
578 | { | |
1265e2d8 | 579 | unsigned long val; |
51d6a954 | 580 | int i; |
1265e2d8 | 581 | int ch; |
51d6a954 | 582 | |
1265e2d8 SG |
583 | do |
584 | ch = readchar (timeout); | |
585 | while (isspace(ch)); | |
cf51c601 | 586 | |
1265e2d8 SG |
587 | val = from_hex (ch); |
588 | ||
589 | for (i = 7; i >= 1; i--) | |
431b7d5f | 590 | { |
1265e2d8 SG |
591 | ch = readchar (timeout); |
592 | if (!isxdigit (ch)) | |
593 | break; | |
594 | val = (val << 4) | from_hex (ch); | |
431b7d5f | 595 | } |
51d6a954 RS |
596 | |
597 | return val; | |
598 | } | |
7e9576e0 | 599 | #endif |
51d6a954 | 600 | |
283dc598 SG |
601 | static void |
602 | compile_pattern (pattern, compiled_pattern, fastmap) | |
603 | char *pattern; | |
604 | struct re_pattern_buffer *compiled_pattern; | |
605 | char *fastmap; | |
606 | { | |
607 | int tmp; | |
c8623080 | 608 | const char *val; |
283dc598 SG |
609 | |
610 | compiled_pattern->fastmap = fastmap; | |
611 | ||
612 | tmp = re_set_syntax (RE_SYNTAX_EMACS); | |
613 | val = re_compile_pattern (pattern, | |
614 | strlen (pattern), | |
615 | compiled_pattern); | |
616 | re_set_syntax (tmp); | |
617 | ||
618 | if (val) | |
619 | error ("compile_pattern: Can't compile pattern string `%s': %s!", pattern, val); | |
620 | ||
621 | if (fastmap) | |
622 | re_compile_fastmap (compiled_pattern); | |
623 | } | |
624 | ||
431b7d5f SS |
625 | /* Open a connection to a remote debugger. NAME is the filename used |
626 | for communication. */ | |
627 | ||
51d6a954 | 628 | void |
1265e2d8 | 629 | monitor_open (args, mon_ops, from_tty) |
51d6a954 | 630 | char *args; |
1265e2d8 | 631 | struct monitor_ops *mon_ops; |
51d6a954 RS |
632 | int from_tty; |
633 | { | |
1265e2d8 | 634 | char *name; |
a706069f SG |
635 | char **p; |
636 | ||
637 | if (mon_ops->magic != MONITOR_OPS_MAGIC) | |
638 | error ("Magic number of monitor_ops struct wrong."); | |
1265e2d8 SG |
639 | |
640 | targ_ops = mon_ops->target; | |
641 | name = targ_ops->to_shortname; | |
51d6a954 | 642 | |
1265e2d8 | 643 | if (!args) |
51d6a954 RS |
644 | error ("Use `target %s DEVICE-NAME' to use a serial port, or \n\ |
645 | `target %s HOST-NAME:PORT-NUMBER' to use a network connection.", name, name); | |
646 | ||
1265e2d8 SG |
647 | target_preopen (from_tty); |
648 | ||
a706069f SG |
649 | /* Setup pattern for register dump */ |
650 | ||
651 | if (mon_ops->register_pattern) | |
283dc598 SG |
652 | compile_pattern (mon_ops->register_pattern, ®ister_pattern, |
653 | register_fastmap); | |
654 | ||
655 | if (mon_ops->getmem.resp_delim) | |
656 | compile_pattern (mon_ops->getmem.resp_delim, &getmem_resp_delim_pattern, | |
657 | getmem_resp_delim_fastmap); | |
a706069f | 658 | |
1265e2d8 SG |
659 | unpush_target (targ_ops); |
660 | ||
661 | if (dev_name) | |
662 | free (dev_name); | |
663 | dev_name = strsave (args); | |
51d6a954 | 664 | |
431b7d5f | 665 | monitor_desc = SERIAL_OPEN (dev_name); |
51d6a954 | 666 | |
1265e2d8 | 667 | if (!monitor_desc) |
431b7d5f SS |
668 | perror_with_name (dev_name); |
669 | ||
670 | if (baud_rate != -1) | |
671 | { | |
672 | if (SERIAL_SETBAUDRATE (monitor_desc, baud_rate)) | |
673 | { | |
674 | SERIAL_CLOSE (monitor_desc); | |
1265e2d8 | 675 | perror_with_name (dev_name); |
431b7d5f | 676 | } |
51d6a954 | 677 | } |
7a1330f7 | 678 | |
431b7d5f | 679 | SERIAL_RAW (monitor_desc); |
51d6a954 | 680 | |
1265e2d8 SG |
681 | SERIAL_FLUSH_INPUT (monitor_desc); |
682 | ||
cf51c601 | 683 | /* some systems only work with 2 stop bits */ |
1265e2d8 SG |
684 | |
685 | SERIAL_SETSTOPBITS (monitor_desc, mon_ops->stopbits); | |
686 | ||
687 | current_monitor = mon_ops; | |
51d6a954 | 688 | |
a706069f SG |
689 | /* See if we can wake up the monitor. First, try sending a stop sequence, |
690 | then send the init strings. Last, remove all breakpoints. */ | |
691 | ||
eba08643 C |
692 | if (current_monitor->stop) |
693 | { | |
694 | monitor_stop (); | |
69159fad SS |
695 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) |
696 | { | |
2a8b1fab JM |
697 | RDEBUG(("EXP Open echo\n")) ; |
698 | monitor_expect_prompt (NULL, 0); | |
69159fad | 699 | } |
eba08643 | 700 | } |
431b7d5f | 701 | |
1265e2d8 | 702 | /* wake up the monitor and see if it's alive */ |
a706069f SG |
703 | for (p = mon_ops->init; *p != NULL; p++) |
704 | { | |
69159fad SS |
705 | /* Some of the characters we send may not be echoed, |
706 | but we hope to get a prompt at the end of it all. */ | |
707 | ||
708 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) | |
709 | monitor_printf(*p); | |
710 | else | |
711 | monitor_printf_noecho (*p); | |
774e5d7f | 712 | monitor_expect_prompt (NULL, 0); |
a706069f SG |
713 | } |
714 | ||
eba08643 C |
715 | SERIAL_FLUSH_INPUT (monitor_desc); |
716 | ||
a706069f | 717 | /* Remove all breakpoints */ |
431b7d5f | 718 | |
a706069f SG |
719 | if (mon_ops->clr_all_break) |
720 | { | |
774e5d7f SS |
721 | monitor_printf (mon_ops->clr_all_break); |
722 | monitor_expect_prompt (NULL, 0); | |
a706069f | 723 | } |
1265e2d8 | 724 | |
51d6a954 | 725 | if (from_tty) |
1265e2d8 SG |
726 | printf_unfiltered ("Remote target %s connected to %s\n", name, dev_name); |
727 | ||
728 | push_target (targ_ops); | |
729 | ||
730 | inferior_pid = 42000; /* Make run command think we are busy... */ | |
731 | ||
eba08643 C |
732 | /* Give monitor_wait something to read */ |
733 | ||
734 | monitor_printf (current_monitor->line_term); | |
1265e2d8 | 735 | |
2a8b1fab JM |
736 | if (current_monitor->flags & MO_HAS_BLOCKWRITES) |
737 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory_block); | |
738 | else | |
739 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory); | |
1265e2d8 | 740 | start_remote (); |
51d6a954 RS |
741 | } |
742 | ||
431b7d5f SS |
743 | /* Close out all files and local state before this target loses |
744 | control. */ | |
51d6a954 | 745 | |
69159fad | 746 | void |
51d6a954 RS |
747 | monitor_close (quitting) |
748 | int quitting; | |
749 | { | |
1265e2d8 SG |
750 | if (monitor_desc) |
751 | SERIAL_CLOSE (monitor_desc); | |
51d6a954 | 752 | monitor_desc = NULL; |
51d6a954 RS |
753 | } |
754 | ||
431b7d5f SS |
755 | /* Terminate the open connection to the remote debugger. Use this |
756 | when you want to detach and do something else with your gdb. */ | |
757 | ||
a706069f | 758 | static void |
1265e2d8 SG |
759 | monitor_detach (args, from_tty) |
760 | char *args; | |
51d6a954 RS |
761 | int from_tty; |
762 | { | |
431b7d5f | 763 | pop_target (); /* calls monitor_close to do the real work */ |
51d6a954 | 764 | if (from_tty) |
1265e2d8 | 765 | printf_unfiltered ("Ending remote %s debugging\n", target_shortname); |
51d6a954 | 766 | } |
7804e5bc | 767 | |
a706069f SG |
768 | /* Convert VALSTR into the target byte-ordered value of REGNO and store it. */ |
769 | ||
770 | char * | |
771 | monitor_supply_register (regno, valstr) | |
772 | int regno; | |
773 | char *valstr; | |
774 | { | |
69159fad | 775 | unsigned int val; |
a706069f SG |
776 | unsigned char regbuf[MAX_REGISTER_RAW_SIZE]; |
777 | char *p; | |
778 | ||
779 | val = strtoul (valstr, &p, 16); | |
2a8b1fab | 780 | RDEBUG(("Supplying Register %d %s\n",regno,valstr)) ; |
a706069f SG |
781 | |
782 | if (val == 0 && valstr == p) | |
783 | error ("monitor_supply_register (%d): bad value from monitor: %s.", | |
784 | regno, valstr); | |
785 | ||
786 | /* supply register stores in target byte order, so swap here */ | |
787 | ||
788 | store_unsigned_integer (regbuf, REGISTER_RAW_SIZE (regno), val); | |
789 | ||
790 | supply_register (regno, regbuf); | |
791 | ||
792 | return p; | |
793 | } | |
794 | ||
431b7d5f SS |
795 | /* Tell the remote machine to resume. */ |
796 | ||
1c3cd1b0 AC |
797 | void |
798 | flush_monitor_dcache () | |
799 | { | |
800 | dcache_flush (remote_dcache); | |
801 | } | |
2a8b1fab | 802 | |
a706069f | 803 | static void |
51d6a954 RS |
804 | monitor_resume (pid, step, sig) |
805 | int pid, step; | |
806 | enum target_signal sig; | |
807 | { | |
012be3ce | 808 | /* Some monitors require a different command when starting a program */ |
2a8b1fab | 809 | RDEBUG(("MON resume\n")) ; |
012be3ce DP |
810 | if (current_monitor->flags & MO_RUN_FIRST_TIME && first_time == 1) |
811 | { | |
812 | first_time = 0; | |
813 | monitor_printf ("run\r"); | |
814 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) | |
815 | dump_reg_flag = 1; | |
816 | return; | |
817 | } | |
45993f61 | 818 | dcache_flush (remote_dcache); |
431b7d5f | 819 | if (step) |
f7ce02f4 | 820 | monitor_printf (current_monitor->step); |
431b7d5f | 821 | else |
a706069f | 822 | { |
2a8b1fab JM |
823 | if (current_monitor->continue_hook) |
824 | (*current_monitor->continue_hook)() ; | |
825 | else monitor_printf (current_monitor->cont); | |
a706069f SG |
826 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) |
827 | dump_reg_flag = 1; | |
828 | } | |
829 | } | |
830 | ||
69159fad SS |
831 | /* Parse the output of a register dump command. A monitor specific |
832 | regexp is used to extract individual register descriptions of the | |
833 | form REG=VAL. Each description is split up into a name and a value | |
834 | string which are passed down to monitor specific code. */ | |
a706069f | 835 | |
7e9576e0 | 836 | static void |
a706069f SG |
837 | parse_register_dump (buf, len) |
838 | char *buf; | |
839 | int len; | |
840 | { | |
2a8b1fab | 841 | RDEBUG(("MON Parsing register dump\n")) |
a706069f SG |
842 | while (1) |
843 | { | |
844 | int regnamelen, vallen; | |
845 | char *regname, *val; | |
69159fad SS |
846 | /* Element 0 points to start of register name, and element 1 |
847 | points to the start of the register value. */ | |
283dc598 | 848 | struct re_registers register_strings; |
a706069f | 849 | |
edc452d0 JM |
850 | memset (®ister_strings, 0, sizeof (struct re_registers)); |
851 | ||
a706069f SG |
852 | if (re_search (®ister_pattern, buf, len, 0, len, |
853 | ®ister_strings) == -1) | |
854 | break; | |
855 | ||
856 | regnamelen = register_strings.end[1] - register_strings.start[1]; | |
857 | regname = buf + register_strings.start[1]; | |
858 | vallen = register_strings.end[2] - register_strings.start[2]; | |
859 | val = buf + register_strings.start[2]; | |
860 | ||
861 | current_monitor->supply_register (regname, regnamelen, val, vallen); | |
862 | ||
863 | buf += register_strings.end[0]; | |
864 | len -= register_strings.end[0]; | |
865 | } | |
51d6a954 RS |
866 | } |
867 | ||
eba08643 C |
868 | /* Send ^C to target to halt it. Target will respond, and send us a |
869 | packet. */ | |
870 | ||
871 | static void | |
872 | monitor_interrupt (signo) | |
873 | int signo; | |
874 | { | |
875 | /* If this doesn't work, try more severe steps. */ | |
876 | signal (signo, monitor_interrupt_twice); | |
877 | ||
878 | if (remote_debug) | |
879 | printf_unfiltered ("monitor_interrupt called\n"); | |
880 | ||
881 | target_stop (); | |
882 | } | |
883 | ||
884 | /* The user typed ^C twice. */ | |
885 | ||
886 | static void | |
887 | monitor_interrupt_twice (signo) | |
888 | int signo; | |
889 | { | |
890 | signal (signo, ofunc); | |
891 | ||
892 | monitor_interrupt_query (); | |
893 | ||
894 | signal (signo, monitor_interrupt); | |
895 | } | |
896 | ||
897 | /* Ask the user what to do when an interrupt is received. */ | |
898 | ||
899 | static void | |
900 | monitor_interrupt_query () | |
901 | { | |
902 | target_terminal_ours (); | |
903 | ||
904 | if (query ("Interrupted while waiting for the program.\n\ | |
905 | Give up (and stop debugging it)? ")) | |
906 | { | |
907 | target_mourn_inferior (); | |
908 | return_to_top_level (RETURN_QUIT); | |
909 | } | |
910 | ||
911 | target_terminal_inferior (); | |
912 | } | |
913 | ||
914 | static void | |
915 | monitor_wait_cleanup (old_timeout) | |
c8623080 | 916 | void *old_timeout; |
eba08643 | 917 | { |
c8623080 | 918 | timeout = *(int*)old_timeout; |
eba08643 | 919 | signal (SIGINT, ofunc); |
4a430794 | 920 | in_monitor_wait = 0; |
eba08643 C |
921 | } |
922 | ||
2a8b1fab JM |
923 | |
924 | ||
925 | void monitor_wait_filter(char * buf, | |
926 | int bufmax, | |
927 | int * ext_resp_len, | |
928 | struct target_waitstatus * status | |
929 | ) | |
930 | { | |
931 | int resp_len ; | |
932 | do | |
933 | { | |
934 | resp_len = monitor_expect_prompt (buf, bufmax); | |
935 | * ext_resp_len =resp_len ; | |
936 | ||
937 | if (resp_len <= 0) | |
938 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
939 | } | |
940 | while (resp_len < 0); | |
941 | ||
942 | /* Print any output characters that were preceded by ^O. */ | |
943 | /* FIXME - This would be great as a user settabgle flag */ | |
944 | if (remote_debug || | |
945 | current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
946 | { | |
947 | int i; | |
948 | ||
949 | for (i = 0; i < resp_len - 1; i++) | |
950 | if (buf[i] == 0x0f) | |
951 | putchar_unfiltered (buf[++i]); | |
952 | } | |
953 | } | |
954 | ||
955 | ||
956 | ||
431b7d5f SS |
957 | /* Wait until the remote machine stops, then return, storing status in |
958 | status just as `wait' would. */ | |
959 | ||
a706069f | 960 | static int |
51d6a954 RS |
961 | monitor_wait (pid, status) |
962 | int pid; | |
963 | struct target_waitstatus *status; | |
964 | { | |
965 | int old_timeout = timeout; | |
774e5d7f | 966 | char buf[1024]; |
a706069f | 967 | int resp_len; |
eba08643 | 968 | struct cleanup *old_chain; |
51d6a954 RS |
969 | |
970 | status->kind = TARGET_WAITKIND_EXITED; | |
971 | status->value.integer = 0; | |
972 | ||
c8623080 | 973 | old_chain = make_cleanup (monitor_wait_cleanup, &old_timeout); |
2a8b1fab | 974 | RDEBUG(("MON wait\n")) |
eba08643 | 975 | |
2a8b1fab JM |
976 | #if 0 /* MAINTENANCE_CMDS */ |
977 | /* This is somthing other than a maintenance command */ | |
4a430794 SS |
978 | in_monitor_wait = 1; |
979 | timeout = watchdog > 0 ? watchdog : -1; | |
980 | #else | |
1265e2d8 | 981 | timeout = -1; /* Don't time out -- user program is running. */ |
4a430794 | 982 | #endif |
51d6a954 | 983 | |
eba08643 C |
984 | ofunc = (void (*)()) signal (SIGINT, monitor_interrupt); |
985 | ||
2a8b1fab JM |
986 | if (current_monitor->wait_filter) |
987 | (*current_monitor->wait_filter)(buf,sizeof (buf),&resp_len,status) ; | |
988 | else monitor_wait_filter(buf,sizeof (buf),&resp_len,status) ; | |
989 | ||
990 | #if 0 /* Transferred to monitor wait filter */ | |
a706069f SG |
991 | do |
992 | { | |
774e5d7f | 993 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
51d6a954 | 994 | |
a706069f SG |
995 | if (resp_len <= 0) |
996 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
997 | } | |
998 | while (resp_len < 0); | |
51d6a954 | 999 | |
352f9e9d | 1000 | /* Print any output characters that were preceded by ^O. */ |
2a8b1fab JM |
1001 | /* FIXME - This would be great as a user settabgle flag */ |
1002 | if (remote_debug || | |
1003 | current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
352f9e9d MA |
1004 | { |
1005 | int i; | |
1006 | ||
1007 | for (i = 0; i < resp_len - 1; i++) | |
1008 | if (buf[i] == 0x0f) | |
1009 | putchar_unfiltered (buf[++i]); | |
1010 | } | |
2a8b1fab | 1011 | #endif |
352f9e9d | 1012 | |
eba08643 C |
1013 | signal (SIGINT, ofunc); |
1014 | ||
51d6a954 | 1015 | timeout = old_timeout; |
2a8b1fab | 1016 | #if 0 |
a706069f SG |
1017 | if (dump_reg_flag && current_monitor->dump_registers) |
1018 | { | |
1019 | dump_reg_flag = 0; | |
774e5d7f SS |
1020 | monitor_printf (current_monitor->dump_registers); |
1021 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
a706069f SG |
1022 | } |
1023 | ||
1024 | if (current_monitor->register_pattern) | |
1025 | parse_register_dump (buf, resp_len); | |
2a8b1fab JM |
1026 | #else |
1027 | RDEBUG(("Wait fetching registers after stop\n")) ; | |
1028 | monitor_dump_regs() ; | |
1029 | #endif | |
a706069f SG |
1030 | |
1031 | status->kind = TARGET_WAITKIND_STOPPED; | |
1032 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1033 | ||
eba08643 C |
1034 | discard_cleanups (old_chain); |
1035 | ||
4a430794 SS |
1036 | in_monitor_wait = 0; |
1037 | ||
1265e2d8 | 1038 | return inferior_pid; |
51d6a954 RS |
1039 | } |
1040 | ||
1265e2d8 SG |
1041 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns |
1042 | errno value. */ | |
51d6a954 | 1043 | |
1265e2d8 SG |
1044 | static void |
1045 | monitor_fetch_register (regno) | |
1046 | int regno; | |
1047 | { | |
1265e2d8 | 1048 | char *name; |
774e5d7f | 1049 | static char zerobuf[MAX_REGISTER_RAW_SIZE] = {0}; |
eba08643 C |
1050 | char regbuf[MAX_REGISTER_RAW_SIZE * 2 + 1]; |
1051 | int i; | |
51d6a954 | 1052 | |
f7ce02f4 | 1053 | name = current_monitor->regnames[regno]; |
2a8b1fab | 1054 | RDEBUG(("MON fetchreg %d '%s'\n",regno,name)) |
f1ca4cbc | 1055 | |
2a8b1fab JM |
1056 | if (!name || (*name == '\0')) |
1057 | { RDEBUG(("No register known for %d\n",regno)) | |
774e5d7f SS |
1058 | supply_register (regno, zerobuf); |
1059 | return; | |
1060 | } | |
51d6a954 | 1061 | |
5be86c56 | 1062 | /* send the register examine command */ |
431b7d5f | 1063 | |
774e5d7f | 1064 | monitor_printf (current_monitor->getreg.cmd, name); |
1b552670 | 1065 | |
69159fad SS |
1066 | /* If RESP_DELIM is specified, we search for that as a leading |
1067 | delimiter for the register value. Otherwise, we just start | |
1068 | searching from the start of the buf. */ | |
eba08643 C |
1069 | |
1070 | if (current_monitor->getreg.resp_delim) | |
7e9576e0 | 1071 | { |
2a8b1fab | 1072 | RDEBUG(("EXP getreg.resp_delim\n")) |
7e9576e0 MA |
1073 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); |
1074 | /* Handle case of first 32 registers listed in pairs. */ | |
1075 | if (current_monitor->flags & MO_32_REGS_PAIRED | |
1076 | && regno & 1 == 1 && regno < 32) | |
2a8b1fab JM |
1077 | { RDEBUG(("EXP getreg.resp_delim\n")) ; |
1078 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); | |
1079 | } | |
7e9576e0 | 1080 | } |
eba08643 | 1081 | |
012be3ce DP |
1082 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set */ |
1083 | if (current_monitor->flags & MO_HEX_PREFIX) | |
1084 | { | |
1085 | int c; | |
1086 | c = readchar (timeout); | |
1087 | while (c == ' ') | |
1088 | c = readchar (timeout); | |
1089 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1090 | ; | |
1091 | else | |
1092 | error ("Bad value returned from monitor while fetching register %x.", | |
1093 | regno); | |
1094 | } | |
1095 | ||
5be86c56 JL |
1096 | /* Read upto the maximum number of hex digits for this register, skipping |
1097 | spaces, but stop reading if something else is seen. Some monitors | |
1098 | like to drop leading zeros. */ | |
eba08643 C |
1099 | |
1100 | for (i = 0; i < REGISTER_RAW_SIZE (regno) * 2; i++) | |
1101 | { | |
1102 | int c; | |
5be86c56 JL |
1103 | c = readchar (timeout); |
1104 | while (c == ' ') | |
1105 | c = readchar (timeout); | |
eba08643 | 1106 | |
5be86c56 JL |
1107 | if (!isxdigit (c)) |
1108 | break; | |
eba08643 C |
1109 | |
1110 | regbuf[i] = c; | |
1111 | } | |
1112 | ||
1113 | regbuf[i] = '\000'; /* terminate the number */ | |
2a8b1fab | 1114 | RDEBUG(("REGVAL '%s'\n",regbuf)) ; |
eba08643 | 1115 | |
69159fad SS |
1116 | /* If TERM is present, we wait for that to show up. Also, (if TERM |
1117 | is present), we will send TERM_CMD if that is present. In any | |
1118 | case, we collect all of the output into buf, and then wait for | |
1119 | the normal prompt. */ | |
1b552670 | 1120 | |
1265e2d8 | 1121 | if (current_monitor->getreg.term) |
431b7d5f | 1122 | { |
2a8b1fab | 1123 | RDEBUG(("EXP getreg.term\n")) |
eba08643 | 1124 | monitor_expect (current_monitor->getreg.term, NULL, 0); /* get response */ |
2a8b1fab | 1125 | } |
1265e2d8 | 1126 | |
2a8b1fab JM |
1127 | if (current_monitor->getreg.term_cmd) |
1128 | { RDEBUG(("EMIT getreg.term.cmd\n")) | |
1129 | monitor_printf (current_monitor->getreg.term_cmd); | |
431b7d5f | 1130 | } |
2a8b1fab JM |
1131 | if (! current_monitor->getreg.term || /* Already expected or */ |
1132 | current_monitor->getreg.term_cmd) /* ack expected */ | |
eba08643 | 1133 | monitor_expect_prompt (NULL, 0); /* get response */ |
51d6a954 | 1134 | |
eba08643 | 1135 | monitor_supply_register (regno, regbuf); |
51d6a954 RS |
1136 | } |
1137 | ||
2a8b1fab JM |
1138 | /* Sometimes, it takes several commands to dump the registers */ |
1139 | /* This is a primitive for use by variations of monitor interfaces in | |
1140 | case they need to compose the operation. | |
1141 | */ | |
1142 | int monitor_dump_reg_block(char * block_cmd) | |
1143 | { | |
1144 | char buf[1024]; | |
1145 | int resp_len; | |
1146 | monitor_printf (block_cmd); | |
1147 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1148 | parse_register_dump (buf, resp_len); | |
1149 | return 1 ; | |
1150 | } | |
1151 | ||
1152 | ||
1265e2d8 | 1153 | /* Read the remote registers into the block regs. */ |
2a8b1fab | 1154 | /* Call the specific function if it has been provided */ |
431b7d5f | 1155 | |
7e9576e0 MA |
1156 | static void |
1157 | monitor_dump_regs () | |
45993f61 | 1158 | { |
8665f3dc MS |
1159 | char buf[1024]; |
1160 | int resp_len; | |
2a8b1fab JM |
1161 | if (current_monitor->dumpregs) |
1162 | (*(current_monitor->dumpregs))() ; /* call supplied function */ | |
1163 | else | |
1164 | if (current_monitor->dump_registers) /* default version */ | |
1165 | { monitor_printf (current_monitor->dump_registers); | |
45993f61 SC |
1166 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
1167 | parse_register_dump (buf, resp_len); | |
1168 | } | |
1169 | else | |
1170 | abort(); /* Need some way to read registers */ | |
1171 | } | |
1172 | ||
a706069f | 1173 | static void |
1265e2d8 SG |
1174 | monitor_fetch_registers (regno) |
1175 | int regno; | |
51d6a954 | 1176 | { |
2a8b1fab | 1177 | RDEBUG(("MON fetchregs\n")) ; |
45993f61 | 1178 | if (current_monitor->getreg.cmd) |
431b7d5f | 1179 | { |
45993f61 SC |
1180 | if (regno >= 0) |
1181 | { | |
1182 | monitor_fetch_register (regno); | |
1183 | return; | |
1184 | } | |
51d6a954 | 1185 | |
45993f61 SC |
1186 | for (regno = 0; regno < NUM_REGS; regno++) |
1187 | monitor_fetch_register (regno); | |
1188 | } | |
1189 | else { | |
1190 | monitor_dump_regs (); | |
1191 | } | |
51d6a954 RS |
1192 | } |
1193 | ||
431b7d5f SS |
1194 | /* Store register REGNO, or all if REGNO == 0. Return errno value. */ |
1195 | ||
1265e2d8 | 1196 | static void |
51d6a954 RS |
1197 | monitor_store_register (regno) |
1198 | int regno; | |
1199 | { | |
1200 | char *name; | |
69159fad | 1201 | unsigned int val; |
f1ca4cbc | 1202 | |
f7ce02f4 | 1203 | name = current_monitor->regnames[regno]; |
2a8b1fab JM |
1204 | if (!name || (*name == '\0')) |
1205 | { RDEBUG(("MON Cannot store unknown register\n")) | |
1206 | return; | |
1207 | } | |
51d6a954 | 1208 | |
1265e2d8 | 1209 | val = read_register (regno); |
2a8b1fab | 1210 | RDEBUG(("MON storeg %d %08x\n",regno,(unsigned int)val)) |
51d6a954 | 1211 | |
7e9576e0 | 1212 | /* send the register deposit command */ |
1265e2d8 | 1213 | |
8665f3dc MS |
1214 | if (current_monitor->flags & MO_REGISTER_VALUE_FIRST) |
1215 | monitor_printf (current_monitor->setreg.cmd, val, name); | |
7e9576e0 MA |
1216 | else if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
1217 | monitor_printf (current_monitor->setreg.cmd, name); | |
8665f3dc MS |
1218 | else |
1219 | monitor_printf (current_monitor->setreg.cmd, name, val); | |
1265e2d8 | 1220 | |
7e9576e0 | 1221 | if (current_monitor->setreg.term) |
2a8b1fab | 1222 | { RDEBUG(("EXP setreg.term\n")) |
7e9576e0 | 1223 | monitor_expect (current_monitor->setreg.term, NULL, 0); |
7e9576e0 MA |
1224 | if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
1225 | monitor_printf ("%x\r", val); | |
7e9576e0 MA |
1226 | monitor_expect_prompt (NULL, 0); |
1227 | } | |
1228 | else | |
1229 | monitor_expect_prompt (NULL, 0); | |
2a8b1fab JM |
1230 | if (current_monitor->setreg.term_cmd) /* Mode exit required */ |
1231 | { RDEBUG(("EXP setreg_termcmd\n")) ; | |
1232 | monitor_printf("%s",current_monitor->setreg.term_cmd) ; | |
1233 | monitor_expect_prompt(NULL,0) ; | |
1234 | } | |
1235 | } /* monitor_store_register */ | |
1265e2d8 SG |
1236 | |
1237 | /* Store the remote registers. */ | |
1238 | ||
a706069f | 1239 | static void |
1265e2d8 SG |
1240 | monitor_store_registers (regno) |
1241 | int regno; | |
1242 | { | |
1243 | if (regno >= 0) | |
431b7d5f | 1244 | { |
1265e2d8 SG |
1245 | monitor_store_register (regno); |
1246 | return; | |
51d6a954 | 1247 | } |
431b7d5f | 1248 | |
1265e2d8 SG |
1249 | for (regno = 0; regno < NUM_REGS; regno++) |
1250 | monitor_store_register (regno); | |
51d6a954 RS |
1251 | } |
1252 | ||
1253 | /* Get ready to modify the registers array. On machines which store | |
1254 | individual registers, this doesn't need to do anything. On machines | |
1255 | which store all the registers in one fell swoop, this makes sure | |
1256 | that registers contains all the registers from the program being | |
1257 | debugged. */ | |
1258 | ||
a706069f | 1259 | static void |
51d6a954 RS |
1260 | monitor_prepare_to_store () |
1261 | { | |
1262 | /* Do nothing, since we can store individual regs */ | |
1263 | } | |
1264 | ||
a706069f SG |
1265 | static void |
1266 | monitor_files_info (ops) | |
1267 | struct target_ops *ops; | |
51d6a954 | 1268 | { |
1265e2d8 | 1269 | printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baud_rate); |
51d6a954 RS |
1270 | } |
1271 | ||
1265e2d8 SG |
1272 | static int |
1273 | monitor_write_memory (memaddr, myaddr, len) | |
51d6a954 | 1274 | CORE_ADDR memaddr; |
2b576293 | 1275 | char *myaddr; |
51d6a954 RS |
1276 | int len; |
1277 | { | |
2a8b1fab | 1278 | unsigned int val, hostval ; |
a706069f SG |
1279 | char *cmd; |
1280 | int i; | |
1b552670 | 1281 | |
2a8b1fab JM |
1282 | RDEBUG(("MON write %d %08x\n",len,(unsigned long)memaddr)) |
1283 | ||
7e9576e0 MA |
1284 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
1285 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
1286 | ||
a706069f | 1287 | /* Use memory fill command for leading 0 bytes. */ |
1b552670 | 1288 | |
a706069f SG |
1289 | if (current_monitor->fill) |
1290 | { | |
1291 | for (i = 0; i < len; i++) | |
1292 | if (myaddr[i] != 0) | |
1293 | break; | |
1294 | ||
1295 | if (i > 4) /* More than 4 zeros is worth doing */ | |
1296 | { | |
2a8b1fab JM |
1297 | RDEBUG(("MON FILL %d\n",i)) |
1298 | if (current_monitor->flags & MO_FILL_USES_ADDR) | |
1299 | monitor_printf (current_monitor->fill, memaddr, (memaddr + i)-1, 0); | |
1300 | else | |
1301 | monitor_printf (current_monitor->fill, memaddr, i, 0); | |
a706069f | 1302 | |
774e5d7f | 1303 | monitor_expect_prompt (NULL, 0); |
a706069f SG |
1304 | |
1305 | return i; | |
1306 | } | |
1307 | } | |
1308 | ||
8665f3dc MS |
1309 | #if 0 |
1310 | /* Can't actually use long longs if VAL is an int (nice idea, though). */ | |
a706069f SG |
1311 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->setmem.cmdll) |
1312 | { | |
1313 | len = 8; | |
1314 | cmd = current_monitor->setmem.cmdll; | |
1315 | } | |
8665f3dc MS |
1316 | else |
1317 | #endif | |
1318 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->setmem.cmdl) | |
a706069f SG |
1319 | { |
1320 | len = 4; | |
1321 | cmd = current_monitor->setmem.cmdl; | |
1322 | } | |
1323 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->setmem.cmdw) | |
1324 | { | |
1325 | len = 2; | |
1326 | cmd = current_monitor->setmem.cmdw; | |
1327 | } | |
1328 | else | |
1329 | { | |
1330 | len = 1; | |
1331 | cmd = current_monitor->setmem.cmdb; | |
1332 | } | |
1333 | ||
1334 | val = extract_unsigned_integer (myaddr, len); | |
2a8b1fab JM |
1335 | |
1336 | if (len == 4) | |
1337 | { hostval = * (unsigned int *) myaddr ; | |
1338 | RDEBUG(("Hostval(%08x) val(%08x)\n",hostval,val)) ; | |
1339 | } | |
1340 | ||
a706069f | 1341 | |
012be3ce DP |
1342 | if (current_monitor->flags & MO_NO_ECHO_ON_SETMEM) |
1343 | monitor_printf_noecho (cmd, memaddr, val); | |
7e9576e0 MA |
1344 | else if (current_monitor->flags & MO_SETMEM_INTERACTIVE) |
1345 | { | |
1346 | ||
1347 | monitor_printf_noecho (cmd, memaddr); | |
1348 | ||
1349 | if (current_monitor->setmem.term) | |
2a8b1fab | 1350 | { RDEBUG(("EXP setmem.term")) ; |
7e9576e0 | 1351 | monitor_expect (current_monitor->setmem.term, NULL, 0); |
7e9576e0 | 1352 | monitor_printf ("%x\r", val); |
2a8b1fab JM |
1353 | } |
1354 | if (current_monitor->setmem.term_cmd) | |
1355 | { /* Emit this to get out of the memory editing state */ | |
1356 | monitor_printf("%s",current_monitor->setmem.term_cmd) ; | |
1357 | /* Drop through to expecting a prompt */ | |
7e9576e0 MA |
1358 | } |
1359 | } | |
012be3ce DP |
1360 | else |
1361 | monitor_printf (cmd, memaddr, val); | |
1265e2d8 | 1362 | |
774e5d7f | 1363 | monitor_expect_prompt (NULL, 0); |
1265e2d8 | 1364 | |
a706069f | 1365 | return len; |
51d6a954 RS |
1366 | } |
1367 | ||
2a8b1fab | 1368 | |
1c3cd1b0 AC |
1369 | static int |
1370 | monitor_write_even_block(memaddr,myaddr,len) | |
2a8b1fab JM |
1371 | CORE_ADDR memaddr ; |
1372 | char * myaddr ; | |
1373 | int len ; | |
1374 | { | |
1375 | unsigned int val ; | |
1376 | int written = 0 ;; | |
1377 | /* Enter the sub mode */ | |
1378 | monitor_printf(current_monitor->setmem.cmdl,memaddr) ; | |
1379 | monitor_expect_prompt(NULL,0) ; | |
1380 | ||
1381 | while (len) | |
1382 | { | |
1383 | val = extract_unsigned_integer(myaddr,4) ; /* REALLY */ | |
1384 | monitor_printf("%x\r",val) ; | |
1385 | myaddr += 4 ; | |
1386 | memaddr += 4 ; | |
1387 | written += 4 ; | |
1388 | RDEBUG((" @ %08x\n",memaddr)) | |
1389 | /* If we wanted to, here we could validate the address */ | |
1390 | monitor_expect_prompt(NULL,0) ; | |
1391 | } | |
1392 | /* Now exit the sub mode */ | |
1393 | monitor_printf (current_monitor->getreg.term_cmd); | |
1394 | monitor_expect_prompt(NULL,0) ; | |
1395 | return written ; | |
1396 | } | |
1397 | ||
1398 | ||
1399 | static int monitor_write_memory_bytes(memaddr,myaddr,len) | |
1400 | CORE_ADDR memaddr ; | |
1401 | char * myaddr ; | |
1402 | int len ; | |
1403 | { | |
1404 | unsigned char val ; | |
1405 | int written = 0 ; | |
1406 | if (len == 0) return 0 ; | |
1407 | /* Enter the sub mode */ | |
1408 | monitor_printf(current_monitor->setmem.cmdb,memaddr) ; | |
1409 | monitor_expect_prompt(NULL,0) ; | |
1410 | while (len) | |
1411 | { | |
1412 | val = *myaddr ; | |
1413 | monitor_printf("%x\r",val) ; | |
1414 | myaddr++ ; | |
1415 | memaddr++ ; | |
1416 | written++ ; | |
1417 | /* If we wanted to, here we could validate the address */ | |
1418 | monitor_expect_prompt(NULL,0) ; | |
1419 | len-- ; | |
1420 | } | |
1421 | /* Now exit the sub mode */ | |
1422 | monitor_printf (current_monitor->getreg.term_cmd); | |
1423 | monitor_expect_prompt(NULL,0) ; | |
1424 | return written ; | |
1425 | } | |
1426 | ||
1427 | ||
1c3cd1b0 AC |
1428 | static void |
1429 | longlongendswap (unsigned char * a) | |
2a8b1fab JM |
1430 | { |
1431 | int i,j ; | |
1432 | unsigned char x ; | |
1433 | i = 0 ; j = 7 ; | |
1434 | while (i < 4) | |
1435 | { x = *(a+i) ; | |
1436 | *(a+i) = *(a+j) ; | |
1437 | *(a+j) = x ; | |
1438 | i++ , j-- ; | |
1439 | } | |
1440 | } | |
1441 | /* Format 32 chars of long long value, advance the pointer */ | |
1442 | static char * hexlate = "0123456789abcdef" ; | |
1443 | static char * longlong_hexchars(unsigned long long value, | |
1444 | char * outbuff ) | |
1445 | { | |
1446 | if (value == 0) { *outbuff++ = '0' ; return outbuff ; } | |
1447 | else | |
1448 | { static unsigned char disbuf[8] ; /* disassembly buffer */ | |
1449 | unsigned char * scan , * limit ; /* loop controls */ | |
1450 | unsigned char c , nib ; | |
1451 | int leadzero = 1 ; | |
1452 | scan = disbuf ; limit = scan + 8 ; | |
1453 | { unsigned long long * dp ; | |
1454 | dp = (unsigned long long *) scan ; | |
1455 | *dp = value ; | |
1456 | } | |
1457 | longlongendswap(disbuf) ; /* FIXME: ONly on big endian hosts */ | |
1458 | while (scan < limit) | |
1459 | { c = *scan++ ; /* a byte of our long long value */ | |
1460 | if (leadzero) | |
1461 | if (c == 0) continue ; | |
1462 | else leadzero = 0 ; /* henceforth we print even zeroes */ | |
1463 | nib = c >> 4 ; /* high nibble bits */ | |
1464 | *outbuff++ = hexlate[nib] ; | |
1465 | nib = c & 0x0f ; /* low nibble bits */ | |
1466 | *outbuff++ = hexlate[nib] ; | |
1467 | } | |
1468 | return outbuff ; | |
1469 | } | |
1470 | } /* longlong_hexchars */ | |
1471 | ||
1472 | ||
1473 | ||
1474 | /* I am only going to call this when writing virtual byte streams. | |
1475 | Which possably entails endian conversions | |
1476 | */ | |
1477 | static int monitor_write_memory_longlongs(memaddr,myaddr,len) | |
1478 | CORE_ADDR memaddr ; | |
1479 | char * myaddr ; | |
1480 | int len ; | |
1481 | { | |
1482 | static char hexstage[20] ; /* At least 16 digits required, plus null */ | |
1483 | char * endstring ; | |
1484 | long long * llptr ; | |
1485 | long long value ; | |
1486 | int written = 0 ; | |
1487 | llptr = (unsigned long long *) myaddr ; | |
1488 | if (len == 0 ) return 0 ; | |
1489 | monitor_printf(current_monitor->setmem.cmdll,memaddr) ; | |
1490 | monitor_expect_prompt(NULL,0) ; | |
1491 | while (len >= 8 ) | |
1492 | { | |
1493 | value = *llptr ; | |
1494 | endstring = longlong_hexchars(*llptr,hexstage) ; | |
1495 | *endstring = '\0' ; /* NUll terminate for printf */ | |
1496 | monitor_printf("%s\r",hexstage) ; | |
1497 | llptr++ ; | |
1498 | memaddr += 8 ; | |
1499 | written += 8 ; | |
1500 | /* If we wanted to, here we could validate the address */ | |
1501 | monitor_expect_prompt(NULL,0) ; | |
1502 | len -= 8 ; | |
1503 | } | |
1504 | /* Now exit the sub mode */ | |
1505 | monitor_printf (current_monitor->getreg.term_cmd); | |
1506 | monitor_expect_prompt(NULL,0) ; | |
1507 | return written ; | |
1508 | } /* */ | |
1509 | ||
1510 | ||
1511 | ||
1512 | /* ----- MONITOR_WRITE_MEMORY_BLOCK ---------------------------- */ | |
1513 | /* This is for the large blocks of memory which may occur in downloading. | |
1514 | And for monitors which use interactive entry, | |
1515 | And for monitors which do not have other downloading methods. | |
1516 | Without this, we will end up calling monitor_write_memory many times | |
1517 | and do the entry and exit of the sub mode many times | |
1518 | This currently assumes... | |
1519 | MO_SETMEM_INTERACTIVE | |
1520 | ! MO_NO_ECHO_ON_SETMEM | |
1521 | To use this, the you have to patch the monitor_cmds block with | |
1522 | this function. Otherwise, its not tuned up for use by all | |
1523 | monitor variations. | |
1524 | */ | |
1525 | ||
1526 | static int monitor_write_memory_block(memaddr,myaddr,len) | |
1527 | CORE_ADDR memaddr ; | |
1528 | char * myaddr ; | |
1529 | int len ; | |
1530 | { | |
1531 | int written ; | |
1532 | written = 0 ; | |
1533 | /* FIXME: This would be a good place to put the zero test */ | |
1534 | #if 1 | |
1535 | if ((len > 8) && (((len & 0x07)) == 0) && current_monitor->setmem.cmdll) | |
1536 | { | |
1537 | return monitor_write_memory_longlongs(memaddr,myaddr,len) ; | |
1538 | } | |
1539 | #endif | |
1540 | #if 0 | |
1541 | if (len > 4) | |
1542 | { | |
1543 | int sublen ; | |
1544 | written = monitor_write_even_block(memaddr,myaddr,len) ; | |
1545 | /* Adjust calling parameters by written amount */ | |
1546 | memaddr += written ; | |
1547 | myaddr += written ; | |
1548 | len -= written ; | |
1549 | } | |
1550 | #endif | |
1551 | written = monitor_write_memory_bytes(memaddr,myaddr,len) ; | |
1552 | return written ; | |
1553 | } | |
1554 | ||
eba08643 C |
1555 | /* This is an alternate form of monitor_read_memory which is used for monitors |
1556 | which can only read a single byte/word/etc. at a time. */ | |
1557 | ||
1558 | static int | |
1559 | monitor_read_memory_single (memaddr, myaddr, len) | |
1560 | CORE_ADDR memaddr; | |
2b576293 | 1561 | char *myaddr; |
eba08643 C |
1562 | int len; |
1563 | { | |
69159fad SS |
1564 | unsigned int val; |
1565 | char membuf[sizeof(int) * 2 + 1]; | |
eba08643 C |
1566 | char *p; |
1567 | char *cmd; | |
1568 | int i; | |
1569 | ||
2a8b1fab | 1570 | RDEBUG(("MON read single\n")) ; |
8665f3dc MS |
1571 | #if 0 |
1572 | /* Can't actually use long longs (nice idea, though). In fact, the | |
1573 | call to strtoul below will fail if it tries to convert a value | |
1574 | that's too big to fit in a long. */ | |
eba08643 C |
1575 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->getmem.cmdll) |
1576 | { | |
1577 | len = 8; | |
1578 | cmd = current_monitor->getmem.cmdll; | |
1579 | } | |
8665f3dc MS |
1580 | else |
1581 | #endif | |
1582 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->getmem.cmdl) | |
eba08643 C |
1583 | { |
1584 | len = 4; | |
1585 | cmd = current_monitor->getmem.cmdl; | |
1586 | } | |
1587 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->getmem.cmdw) | |
1588 | { | |
1589 | len = 2; | |
1590 | cmd = current_monitor->getmem.cmdw; | |
1591 | } | |
1592 | else | |
1593 | { | |
1594 | len = 1; | |
1595 | cmd = current_monitor->getmem.cmdb; | |
1596 | } | |
1597 | ||
15f13cd0 | 1598 | /* Send the examine command. */ |
eba08643 C |
1599 | |
1600 | monitor_printf (cmd, memaddr); | |
1601 | ||
15f13cd0 DE |
1602 | /* If RESP_DELIM is specified, we search for that as a leading |
1603 | delimiter for the memory value. Otherwise, we just start | |
1604 | searching from the start of the buf. */ | |
eba08643 C |
1605 | |
1606 | if (current_monitor->getmem.resp_delim) | |
2a8b1fab JM |
1607 | { RDEBUG(("EXP getmem.resp_delim\n")) ; |
1608 | monitor_expect_regexp (&getmem_resp_delim_pattern, NULL, 0); | |
1609 | } | |
eba08643 | 1610 | |
15f13cd0 DE |
1611 | /* Now, read the appropriate number of hex digits for this loc, |
1612 | skipping spaces. */ | |
eba08643 | 1613 | |
15f13cd0 | 1614 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */ |
012be3ce DP |
1615 | if (current_monitor->flags & MO_HEX_PREFIX) |
1616 | { | |
1617 | int c; | |
15f13cd0 | 1618 | |
012be3ce DP |
1619 | c = readchar (timeout); |
1620 | while (c == ' ') | |
1621 | c = readchar (timeout); | |
1622 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1623 | ; | |
1624 | else | |
15f13cd0 DE |
1625 | error ("monitor_read_memory_single (0x%x): bad response from monitor: %.*s%c.", |
1626 | memaddr, i, membuf, c); | |
012be3ce | 1627 | } |
eba08643 C |
1628 | for (i = 0; i < len * 2; i++) |
1629 | { | |
1630 | int c; | |
1631 | ||
1632 | while (1) | |
1633 | { | |
1634 | c = readchar (timeout); | |
1635 | if (isxdigit (c)) | |
1636 | break; | |
1637 | if (c == ' ') | |
1638 | continue; | |
1639 | ||
1640 | error ("monitor_read_memory_single (0x%x): bad response from monitor: %.*s%c.", | |
1641 | memaddr, i, membuf, c); | |
1642 | } | |
1643 | ||
1644 | membuf[i] = c; | |
1645 | } | |
1646 | ||
1647 | membuf[i] = '\000'; /* terminate the number */ | |
1648 | ||
1649 | /* If TERM is present, we wait for that to show up. Also, (if TERM is | |
1650 | present), we will send TERM_CMD if that is present. In any case, we collect | |
1651 | all of the output into buf, and then wait for the normal prompt. */ | |
1652 | ||
1653 | if (current_monitor->getmem.term) | |
1654 | { | |
1655 | monitor_expect (current_monitor->getmem.term, NULL, 0); /* get response */ | |
1656 | ||
1657 | if (current_monitor->getmem.term_cmd) | |
1658 | { | |
1659 | monitor_printf (current_monitor->getmem.term_cmd); | |
1660 | monitor_expect_prompt (NULL, 0); | |
1661 | } | |
1662 | } | |
1663 | else | |
1664 | monitor_expect_prompt (NULL, 0); /* get response */ | |
1665 | ||
1666 | p = membuf; | |
1667 | val = strtoul (membuf, &p, 16); | |
1668 | ||
1669 | if (val == 0 && membuf == p) | |
1670 | error ("monitor_read_memory_single (0x%x): bad value from monitor: %s.", | |
1671 | memaddr, membuf); | |
1672 | ||
1673 | /* supply register stores in target byte order, so swap here */ | |
1674 | ||
1675 | store_unsigned_integer (myaddr, len, val); | |
1676 | ||
1677 | return len; | |
1678 | } | |
1679 | ||
7e9576e0 MA |
1680 | /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's |
1681 | memory at MEMADDR. Returns length moved. Currently, we do no more | |
1682 | than 16 bytes at a time. */ | |
431b7d5f | 1683 | |
1265e2d8 SG |
1684 | static int |
1685 | monitor_read_memory (memaddr, myaddr, len) | |
51d6a954 RS |
1686 | CORE_ADDR memaddr; |
1687 | char *myaddr; | |
1688 | int len; | |
1689 | { | |
69159fad | 1690 | unsigned int val; |
774e5d7f | 1691 | char buf[512]; |
1265e2d8 | 1692 | char *p, *p1; |
1265e2d8 | 1693 | int resp_len; |
a706069f | 1694 | int i; |
7e9576e0 MA |
1695 | CORE_ADDR dumpaddr; |
1696 | ||
2a8b1fab JM |
1697 | if (remote_debug) printf("MON read block ta(%08x) ha(%08x) %d\n", |
1698 | (unsigned long) memaddr , (unsigned long)myaddr, len); | |
1699 | ||
7e9576e0 MA |
1700 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
1701 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
a706069f | 1702 | |
eba08643 C |
1703 | if (current_monitor->flags & MO_GETMEM_READ_SINGLE) |
1704 | return monitor_read_memory_single (memaddr, myaddr, len); | |
1705 | ||
a706069f | 1706 | len = min (len, 16); |
1265e2d8 | 1707 | |
2a8b1fab JM |
1708 | /* Some dumpers align the first data with the preceeding 16 |
1709 | byte boundary. Some print blanks and start at the | |
1710 | requested boundary. EXACT_DUMPADDR | |
1711 | */ | |
1712 | ||
1713 | dumpaddr = (current_monitor->flags & MO_EXACT_DUMPADDR) | |
1714 | ? memaddr : memaddr & ~ 0x0f ; | |
7e9576e0 | 1715 | |
15f13cd0 | 1716 | /* See if xfer would cross a 16 byte boundary. If so, clip it. */ |
774e5d7f SS |
1717 | if (((memaddr ^ (memaddr + len - 1)) & ~0xf) != 0) |
1718 | len = ((memaddr + len) & ~0xf) - memaddr; | |
1719 | ||
15f13cd0 | 1720 | /* send the memory examine command */ |
1265e2d8 | 1721 | |
774e5d7f SS |
1722 | if (current_monitor->flags & MO_GETMEM_NEEDS_RANGE) |
1723 | monitor_printf (current_monitor->getmem.cmdb, memaddr, memaddr + len - 1); | |
7e9576e0 MA |
1724 | else if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1725 | monitor_printf (current_monitor->getmem.cmdb, dumpaddr); | |
774e5d7f SS |
1726 | else |
1727 | monitor_printf (current_monitor->getmem.cmdb, memaddr, len); | |
1265e2d8 | 1728 | |
15f13cd0 DE |
1729 | /* If TERM is present, we wait for that to show up. Also, (if TERM |
1730 | is present), we will send TERM_CMD if that is present. In any | |
1731 | case, we collect all of the output into buf, and then wait for | |
1732 | the normal prompt. */ | |
1265e2d8 SG |
1733 | |
1734 | if (current_monitor->getmem.term) | |
431b7d5f | 1735 | { |
774e5d7f | 1736 | resp_len = monitor_expect (current_monitor->getmem.term, buf, sizeof buf); /* get response */ |
1265e2d8 SG |
1737 | |
1738 | if (resp_len <= 0) | |
8f078234 SG |
1739 | error ("monitor_read_memory (0x%x): excessive response from monitor: %.*s.", |
1740 | memaddr, resp_len, buf); | |
1265e2d8 SG |
1741 | |
1742 | if (current_monitor->getmem.term_cmd) | |
431b7d5f | 1743 | { |
1265e2d8 SG |
1744 | SERIAL_WRITE (monitor_desc, current_monitor->getmem.term_cmd, |
1745 | strlen (current_monitor->getmem.term_cmd)); | |
774e5d7f | 1746 | monitor_expect_prompt (NULL, 0); |
1b552670 | 1747 | } |
51d6a954 | 1748 | } |
1265e2d8 | 1749 | else |
774e5d7f SS |
1750 | resp_len = monitor_expect_prompt (buf, sizeof buf); /* get response */ |
1751 | ||
1752 | p = buf; | |
1753 | ||
15f13cd0 DE |
1754 | /* If RESP_DELIM is specified, we search for that as a leading |
1755 | delimiter for the values. Otherwise, we just start searching | |
1756 | from the start of the buf. */ | |
1265e2d8 SG |
1757 | |
1758 | if (current_monitor->getmem.resp_delim) | |
1759 | { | |
283dc598 SG |
1760 | int retval, tmp; |
1761 | struct re_registers resp_strings; | |
2a8b1fab | 1762 | RDEBUG(("MON getmem.resp_delim %s\n",current_monitor->getmem.resp_delim)) ; |
283dc598 | 1763 | |
edc452d0 | 1764 | memset (&resp_strings, 0, sizeof (struct re_registers)); |
283dc598 SG |
1765 | tmp = strlen (p); |
1766 | retval = re_search (&getmem_resp_delim_pattern, p, tmp, 0, tmp, | |
1767 | &resp_strings); | |
1768 | ||
1769 | if (retval < 0) | |
1770 | error ("monitor_read_memory (0x%x): bad response from monitor: %.*s.", | |
1771 | memaddr, resp_len, buf); | |
1772 | ||
1773 | p += resp_strings.end[0]; | |
1774 | #if 0 | |
774e5d7f | 1775 | p = strstr (p, current_monitor->getmem.resp_delim); |
1265e2d8 | 1776 | if (!p) |
8f078234 SG |
1777 | error ("monitor_read_memory (0x%x): bad response from monitor: %.*s.", |
1778 | memaddr, resp_len, buf); | |
1265e2d8 | 1779 | p += strlen (current_monitor->getmem.resp_delim); |
283dc598 | 1780 | #endif |
1265e2d8 | 1781 | } |
2a8b1fab | 1782 | if (remote_debug) printf("MON scanning %d ,%08x '%s'\n",len,p,p) ; |
7e9576e0 MA |
1783 | if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1784 | { | |
2a8b1fab JM |
1785 | char c ; |
1786 | int fetched = 0 ; | |
7e9576e0 | 1787 | i = len; |
2a8b1fab JM |
1788 | c = *p ; |
1789 | ||
1790 | ||
1791 | while (!(c == '\000' || c == '\n' || c == '\r') && i > 0) | |
1792 | { if (isxdigit (c)) | |
1793 | { if ((dumpaddr >= memaddr) && (i > 0)) | |
1794 | { val = fromhex (c) * 16 + fromhex (*(p+1)); | |
7e9576e0 | 1795 | *myaddr++ = val; |
2a8b1fab | 1796 | if (remote_debug) printf("[%02x]",val) ; |
7e9576e0 | 1797 | --i; |
2a8b1fab | 1798 | fetched++ ; |
7e9576e0 MA |
1799 | } |
1800 | ++dumpaddr; | |
1801 | ++p; | |
1802 | } | |
2a8b1fab JM |
1803 | ++p; /* skip a blank or other non hex char */ |
1804 | c = *p ; | |
7e9576e0 | 1805 | } |
2a8b1fab JM |
1806 | if (fetched == 0) error("Failed to read via monitor") ; |
1807 | if (remote_debug) printf("\n") ; | |
1808 | return fetched ; /* Return the number of bytes actually read */ | |
7e9576e0 | 1809 | } |
2a8b1fab | 1810 | RDEBUG(("MON scanning bytes\n")) ; |
7e9576e0 | 1811 | |
a706069f SG |
1812 | for (i = len; i > 0; i--) |
1813 | { | |
774e5d7f SS |
1814 | /* Skip non-hex chars, but bomb on end of string and newlines */ |
1815 | ||
1816 | while (1) | |
1817 | { | |
1818 | if (isxdigit (*p)) | |
1819 | break; | |
7e9576e0 | 1820 | |
774e5d7f SS |
1821 | if (*p == '\000' || *p == '\n' || *p == '\r') |
1822 | error ("monitor_read_memory (0x%x): badly terminated response from monitor: %.*s", memaddr, resp_len, buf); | |
1823 | p++; | |
1824 | } | |
1825 | ||
a706069f | 1826 | val = strtoul (p, &p1, 16); |
1265e2d8 | 1827 | |
a706069f SG |
1828 | if (val == 0 && p == p1) |
1829 | error ("monitor_read_memory (0x%x): bad value from monitor: %.*s.", memaddr, | |
1830 | resp_len, buf); | |
1265e2d8 | 1831 | |
a706069f | 1832 | *myaddr++ = val; |
774e5d7f SS |
1833 | |
1834 | if (i == 1) | |
1835 | break; | |
1836 | ||
1837 | p = p1; | |
a706069f | 1838 | } |
1265e2d8 | 1839 | |
a706069f | 1840 | return len; |
51d6a954 RS |
1841 | } |
1842 | ||
a706069f | 1843 | static int |
1265e2d8 | 1844 | monitor_xfer_memory (memaddr, myaddr, len, write, target) |
51d6a954 RS |
1845 | CORE_ADDR memaddr; |
1846 | char *myaddr; | |
1847 | int len; | |
1848 | int write; | |
1849 | struct target_ops *target; /* ignored */ | |
1850 | { | |
45993f61 | 1851 | return dcache_xfer_memory (remote_dcache, memaddr, myaddr, len, write); |
51d6a954 RS |
1852 | } |
1853 | ||
a706069f SG |
1854 | static void |
1855 | monitor_kill () | |
51d6a954 RS |
1856 | { |
1857 | return; /* ignore attempts to kill target system */ | |
1858 | } | |
1859 | ||
a706069f SG |
1860 | /* All we actually do is set the PC to the start address of exec_bfd, and start |
1861 | the program at that point. */ | |
1862 | ||
1863 | static void | |
1864 | monitor_create_inferior (exec_file, args, env) | |
1865 | char *exec_file; | |
1866 | char *args; | |
1867 | char **env; | |
1868 | { | |
1869 | if (args && (*args != '\000')) | |
1870 | error ("Args are not supported by the monitor."); | |
1871 | ||
012be3ce | 1872 | first_time = 1; |
a706069f SG |
1873 | clear_proceed_status (); |
1874 | proceed (bfd_get_start_address (exec_bfd), TARGET_SIGNAL_0, 0); | |
1875 | } | |
1876 | ||
51d6a954 RS |
1877 | /* Clean up when a program exits. |
1878 | The program actually lives on in the remote processor's RAM, and may be | |
1879 | run again without a download. Don't leave it full of breakpoint | |
1880 | instructions. */ | |
1881 | ||
a706069f | 1882 | static void |
51d6a954 RS |
1883 | monitor_mourn_inferior () |
1884 | { | |
8f078234 | 1885 | unpush_target (targ_ops); |
51d6a954 RS |
1886 | generic_mourn_inferior (); /* Do all the proper things now */ |
1887 | } | |
1888 | ||
1265e2d8 | 1889 | #define NUM_MONITOR_BREAKPOINTS 8 |
51d6a954 | 1890 | |
1265e2d8 | 1891 | static CORE_ADDR breakaddr[NUM_MONITOR_BREAKPOINTS] = {0}; |
51d6a954 | 1892 | |
431b7d5f SS |
1893 | /* Tell the monitor to add a breakpoint. */ |
1894 | ||
a706069f | 1895 | static int |
51d6a954 RS |
1896 | monitor_insert_breakpoint (addr, shadow) |
1897 | CORE_ADDR addr; | |
1898 | char *shadow; | |
1899 | { | |
1900 | int i; | |
7e9576e0 MA |
1901 | unsigned char *bp; |
1902 | int bplen; | |
1903 | ||
2a8b1fab | 1904 | RDEBUG(("MON inst bkpt %08x\n",addr)) |
7e9576e0 MA |
1905 | if (current_monitor->set_break == NULL) |
1906 | error ("No set_break defined for this monitor"); | |
1907 | ||
1908 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1909 | addr = ADDR_BITS_REMOVE (addr); | |
1910 | ||
1911 | /* Determine appropriate breakpoint size for this address. */ | |
1912 | bp = memory_breakpoint_from_pc (&addr, &bplen); | |
51d6a954 | 1913 | |
1265e2d8 | 1914 | for (i = 0; i < NUM_MONITOR_BREAKPOINTS; i++) |
431b7d5f SS |
1915 | { |
1916 | if (breakaddr[i] == 0) | |
1917 | { | |
1918 | breakaddr[i] = addr; | |
7e9576e0 | 1919 | monitor_read_memory (addr, shadow, bplen); |
f7ce02f4 | 1920 | monitor_printf (current_monitor->set_break, addr); |
774e5d7f | 1921 | monitor_expect_prompt (NULL, 0); |
431b7d5f SS |
1922 | return 0; |
1923 | } | |
f1ca4cbc | 1924 | } |
f1ca4cbc | 1925 | |
1265e2d8 | 1926 | error ("Too many breakpoints (> %d) for monitor.", NUM_MONITOR_BREAKPOINTS); |
51d6a954 RS |
1927 | } |
1928 | ||
431b7d5f SS |
1929 | /* Tell the monitor to remove a breakpoint. */ |
1930 | ||
a706069f | 1931 | static int |
51d6a954 RS |
1932 | monitor_remove_breakpoint (addr, shadow) |
1933 | CORE_ADDR addr; | |
1934 | char *shadow; | |
1935 | { | |
1936 | int i; | |
1937 | ||
2a8b1fab | 1938 | RDEBUG(("MON rmbkpt %08x\n",addr)) |
7e9576e0 MA |
1939 | if (current_monitor->clr_break == NULL) |
1940 | error ("No clr_break defined for this monitor"); | |
1941 | ||
1942 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1943 | addr = ADDR_BITS_REMOVE (addr); | |
1944 | ||
1265e2d8 | 1945 | for (i = 0; i < NUM_MONITOR_BREAKPOINTS; i++) |
431b7d5f SS |
1946 | { |
1947 | if (breakaddr[i] == addr) | |
1948 | { | |
1949 | breakaddr[i] = 0; | |
1950 | /* some monitors remove breakpoints based on the address */ | |
7e9576e0 | 1951 | if (current_monitor->flags & MO_CLR_BREAK_USES_ADDR) |
f7ce02f4 | 1952 | monitor_printf (current_monitor->clr_break, addr); |
7e9576e0 MA |
1953 | else if (current_monitor->flags & MO_CLR_BREAK_1_BASED) |
1954 | monitor_printf (current_monitor->clr_break, i + 1); | |
431b7d5f | 1955 | else |
f7ce02f4 | 1956 | monitor_printf (current_monitor->clr_break, i); |
774e5d7f | 1957 | monitor_expect_prompt (NULL, 0); |
431b7d5f SS |
1958 | return 0; |
1959 | } | |
7804e5bc | 1960 | } |
1265e2d8 | 1961 | fprintf_unfiltered (stderr, "Can't find breakpoint associated with 0x%x\n", addr); |
51d6a954 RS |
1962 | return 1; |
1963 | } | |
1964 | ||
f7ce02f4 DP |
1965 | /* monitor_wait_srec_ack -- wait for the target to send an acknowledgement for |
1966 | an S-record. Return non-zero if the ACK is received properly. */ | |
1967 | ||
1968 | static int | |
1969 | monitor_wait_srec_ack () | |
1970 | { | |
7e9576e0 MA |
1971 | int i, ch; |
1972 | ||
1973 | if (current_monitor->flags & MO_SREC_ACK_PLUS) | |
1974 | { | |
1975 | return (readchar (timeout) == '+'); | |
1976 | } | |
1977 | else if (current_monitor->flags & MO_SREC_ACK_ROTATE) | |
1978 | { | |
1979 | /* Eat two backspaces, a "rotating" char (|/-\), and a space. */ | |
1980 | if ((ch = readchar (1)) < 0) | |
1981 | return 0; | |
1982 | if ((ch = readchar (1)) < 0) | |
1983 | return 0; | |
1984 | if ((ch = readchar (1)) < 0) | |
1985 | return 0; | |
1986 | if ((ch = readchar (1)) < 0) | |
1987 | return 0; | |
1988 | } | |
1989 | return 1; | |
f7ce02f4 DP |
1990 | } |
1991 | ||
774e5d7f | 1992 | /* monitor_load -- download a file. */ |
431b7d5f | 1993 | |
a706069f SG |
1994 | static void |
1995 | monitor_load (file, from_tty) | |
21ed3dcd | 1996 | char *file; |
a706069f | 1997 | int from_tty; |
21ed3dcd | 1998 | { |
45993f61 | 1999 | dcache_flush (remote_dcache); |
2a8b1fab | 2000 | RDEBUG(("MON load\n")) |
45993f61 | 2001 | |
774e5d7f SS |
2002 | if (current_monitor->load_routine) |
2003 | current_monitor->load_routine (monitor_desc, file, hashmark); | |
2004 | else | |
b9ab37f0 | 2005 | { /* The default is ascii S-records */ |
7e9576e0 MA |
2006 | int n; |
2007 | unsigned long load_offset; | |
2008 | char buf[128]; | |
2009 | ||
2010 | /* enable user to specify address for downloading as 2nd arg to load */ | |
2011 | n = sscanf (file, "%s 0x%lx", buf, &load_offset); | |
2012 | if (n > 1) | |
2013 | file = buf; | |
2014 | else | |
2015 | load_offset = 0; | |
2016 | ||
f7ce02f4 | 2017 | monitor_printf (current_monitor->load); |
b9ab37f0 MM |
2018 | if (current_monitor->loadresp) |
2019 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
2020 | ||
7e9576e0 MA |
2021 | load_srec (monitor_desc, file, (bfd_vma) load_offset, |
2022 | 32, SREC_ALL, hashmark, | |
f7ce02f4 DP |
2023 | current_monitor->flags & MO_SREC_ACK ? |
2024 | monitor_wait_srec_ack : NULL); | |
b9ab37f0 MM |
2025 | |
2026 | monitor_expect_prompt (NULL, 0); | |
2027 | } | |
21ed3dcd | 2028 | |
a706069f | 2029 | /* Finally, make the PC point at the start address */ |
431b7d5f | 2030 | |
45993f61 SC |
2031 | if (exec_bfd) |
2032 | write_pc (bfd_get_start_address (exec_bfd)); | |
431b7d5f | 2033 | |
a706069f | 2034 | inferior_pid = 0; /* No process now */ |
51d6a954 | 2035 | |
a706069f SG |
2036 | /* This is necessary because many things were based on the PC at the time that |
2037 | we attached to the monitor, which is no longer valid now that we have loaded | |
2038 | new code (and just changed the PC). Another way to do this might be to call | |
2039 | normal_stop, except that the stack may not be valid, and things would get | |
2040 | horribly confused... */ | |
51d6a954 | 2041 | |
a706069f SG |
2042 | clear_symtab_users (); |
2043 | } | |
2044 | ||
2045 | static void | |
2046 | monitor_stop () | |
2047 | { | |
2a8b1fab | 2048 | RDEBUG(("MON stop\n")) ; |
69159fad SS |
2049 | if ((current_monitor->flags & MO_SEND_BREAK_ON_STOP) != 0) |
2050 | SERIAL_SEND_BREAK (monitor_desc); | |
eba08643 C |
2051 | if (current_monitor->stop) |
2052 | monitor_printf_noecho (current_monitor->stop); | |
51d6a954 RS |
2053 | } |
2054 | ||
431b7d5f SS |
2055 | /* Put a command string, in args, out to MONITOR. Output from MONITOR |
2056 | is placed on the users terminal until the prompt is seen. FIXME: We | |
2057 | read the characters ourseleves here cause of a nasty echo. */ | |
2058 | ||
8f078234 | 2059 | static void |
a706069f | 2060 | monitor_command (args, from_tty) |
431b7d5f | 2061 | char *args; |
a706069f | 2062 | int from_tty; |
51d6a954 | 2063 | { |
7804e5bc | 2064 | char *p; |
a706069f SG |
2065 | int resp_len; |
2066 | char buf[1000]; | |
431b7d5f | 2067 | |
51d6a954 | 2068 | if (monitor_desc == NULL) |
431b7d5f | 2069 | error ("monitor target not open."); |
7804e5bc | 2070 | |
f7ce02f4 | 2071 | p = current_monitor->prompt; |
774e5d7f | 2072 | |
431b7d5f SS |
2073 | /* Send the command. Note that if no args were supplied, then we're |
2074 | just sending the monitor a newline, which is sometimes useful. */ | |
2075 | ||
774e5d7f | 2076 | monitor_printf ("%s\r", (args ? args : "")); |
7804e5bc | 2077 | |
774e5d7f | 2078 | resp_len = monitor_expect_prompt (buf, sizeof buf); |
a706069f SG |
2079 | |
2080 | fputs_unfiltered (buf, gdb_stdout); /* Output the response */ | |
51d6a954 RS |
2081 | } |
2082 | ||
1b552670 | 2083 | /* Convert hex digit A to a number. */ |
431b7d5f | 2084 | |
7e9576e0 | 2085 | #if 0 |
1b552670 RS |
2086 | static int |
2087 | from_hex (a) | |
2088 | int a; | |
2089 | { | |
1b552670 RS |
2090 | if (a >= '0' && a <= '9') |
2091 | return a - '0'; | |
2092 | if (a >= 'a' && a <= 'f') | |
2093 | return a - 'a' + 10; | |
2094 | if (a >= 'A' && a <= 'F') | |
2095 | return a - 'A' + 10; | |
1b552670 | 2096 | |
1265e2d8 | 2097 | error ("Reply contains invalid hex digit 0x%x", a); |
1b552670 | 2098 | } |
7e9576e0 MA |
2099 | #endif |
2100 | ||
2101 | char * | |
2102 | monitor_get_dev_name () | |
2103 | { | |
2104 | return dev_name; | |
2105 | } | |
1b552670 | 2106 | |
c8623080 AC |
2107 | static struct target_ops monitor_ops ; |
2108 | ||
2109 | static void init_base_monitor_ops(void) | |
774e5d7f | 2110 | { |
c8623080 AC |
2111 | monitor_ops.to_shortname = NULL; |
2112 | monitor_ops.to_longname = NULL; | |
2113 | monitor_ops.to_doc = NULL; | |
2114 | monitor_ops.to_open = NULL; | |
2115 | monitor_ops.to_close = monitor_close; | |
2116 | monitor_ops.to_attach = NULL; | |
2117 | monitor_ops.to_detach = monitor_detach; | |
2118 | monitor_ops.to_resume = monitor_resume; | |
2119 | monitor_ops.to_wait = monitor_wait; | |
2120 | monitor_ops.to_fetch_registers = monitor_fetch_registers; | |
2121 | monitor_ops.to_store_registers = monitor_store_registers; | |
2122 | monitor_ops.to_prepare_to_store = monitor_prepare_to_store; | |
2123 | monitor_ops.to_xfer_memory = monitor_xfer_memory; | |
2124 | monitor_ops.to_files_info = monitor_files_info; | |
2125 | monitor_ops.to_insert_breakpoint = monitor_insert_breakpoint; | |
2126 | monitor_ops.to_remove_breakpoint = monitor_remove_breakpoint; | |
2127 | monitor_ops.to_terminal_init = 0; | |
2128 | monitor_ops.to_terminal_inferior = 0; | |
2129 | monitor_ops.to_terminal_ours_for_output = 0; | |
2130 | monitor_ops.to_terminal_ours = 0; | |
2131 | monitor_ops.to_terminal_info = 0; | |
2132 | monitor_ops.to_kill = monitor_kill; | |
2133 | monitor_ops.to_load = monitor_load; | |
2134 | monitor_ops.to_lookup_symbol = 0; | |
2135 | monitor_ops.to_create_inferior = monitor_create_inferior; | |
2136 | monitor_ops.to_mourn_inferior = monitor_mourn_inferior; | |
2137 | monitor_ops.to_can_run = 0; | |
2138 | monitor_ops.to_notice_signals = 0; | |
2139 | monitor_ops.to_thread_alive = 0; | |
2140 | monitor_ops.to_stop = monitor_stop; | |
2141 | monitor_ops.to_stratum = process_stratum; | |
2142 | monitor_ops.DONT_USE = 0; | |
2143 | monitor_ops.to_has_all_memory = 1; | |
2144 | monitor_ops.to_has_memory = 1; | |
2145 | monitor_ops.to_has_stack = 1; | |
2146 | monitor_ops.to_has_registers = 1; | |
2147 | monitor_ops.to_has_execution = 1; | |
2148 | monitor_ops.to_sections = 0; | |
2149 | monitor_ops.to_sections_end = 0; | |
2150 | monitor_ops.to_magic = OPS_MAGIC ; | |
2151 | } /* init_monitor_ops */ | |
a706069f SG |
2152 | |
2153 | /* Init the target_ops structure pointed at by OPS */ | |
2154 | ||
2155 | void | |
2156 | init_monitor_ops (ops) | |
2157 | struct target_ops *ops; | |
2158 | { | |
2159 | memcpy (ops, &monitor_ops, sizeof monitor_ops); | |
2160 | } | |
2161 | ||
431b7d5f SS |
2162 | /* Define additional commands that are usually only used by monitors. */ |
2163 | ||
51d6a954 RS |
2164 | void |
2165 | _initialize_remote_monitors () | |
2166 | { | |
c8623080 | 2167 | init_base_monitor_ops() ; |
51d6a954 RS |
2168 | add_show_from_set (add_set_cmd ("hash", no_class, var_boolean, |
2169 | (char *)&hashmark, | |
2170 | "Set display of activity while downloading a file.\n\ | |
1265e2d8 | 2171 | When enabled, a hashmark \'#\' is displayed.", |
51d6a954 RS |
2172 | &setlist), |
2173 | &showlist); | |
2174 | ||
51d6a954 RS |
2175 | add_com ("monitor", class_obscure, monitor_command, |
2176 | "Send a command to the debug monitor."); | |
2177 | } |