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 SG |
849 | |
850 | if (re_search (®ister_pattern, buf, len, 0, len, | |
851 | ®ister_strings) == -1) | |
852 | break; | |
853 | ||
854 | regnamelen = register_strings.end[1] - register_strings.start[1]; | |
855 | regname = buf + register_strings.start[1]; | |
856 | vallen = register_strings.end[2] - register_strings.start[2]; | |
857 | val = buf + register_strings.start[2]; | |
858 | ||
859 | current_monitor->supply_register (regname, regnamelen, val, vallen); | |
860 | ||
861 | buf += register_strings.end[0]; | |
862 | len -= register_strings.end[0]; | |
863 | } | |
51d6a954 RS |
864 | } |
865 | ||
eba08643 C |
866 | /* Send ^C to target to halt it. Target will respond, and send us a |
867 | packet. */ | |
868 | ||
869 | static void | |
870 | monitor_interrupt (signo) | |
871 | int signo; | |
872 | { | |
873 | /* If this doesn't work, try more severe steps. */ | |
874 | signal (signo, monitor_interrupt_twice); | |
875 | ||
876 | if (remote_debug) | |
877 | printf_unfiltered ("monitor_interrupt called\n"); | |
878 | ||
879 | target_stop (); | |
880 | } | |
881 | ||
882 | /* The user typed ^C twice. */ | |
883 | ||
884 | static void | |
885 | monitor_interrupt_twice (signo) | |
886 | int signo; | |
887 | { | |
888 | signal (signo, ofunc); | |
889 | ||
890 | monitor_interrupt_query (); | |
891 | ||
892 | signal (signo, monitor_interrupt); | |
893 | } | |
894 | ||
895 | /* Ask the user what to do when an interrupt is received. */ | |
896 | ||
897 | static void | |
898 | monitor_interrupt_query () | |
899 | { | |
900 | target_terminal_ours (); | |
901 | ||
902 | if (query ("Interrupted while waiting for the program.\n\ | |
903 | Give up (and stop debugging it)? ")) | |
904 | { | |
905 | target_mourn_inferior (); | |
906 | return_to_top_level (RETURN_QUIT); | |
907 | } | |
908 | ||
909 | target_terminal_inferior (); | |
910 | } | |
911 | ||
912 | static void | |
913 | monitor_wait_cleanup (old_timeout) | |
c8623080 | 914 | void *old_timeout; |
eba08643 | 915 | { |
c8623080 | 916 | timeout = *(int*)old_timeout; |
eba08643 | 917 | signal (SIGINT, ofunc); |
4a430794 | 918 | in_monitor_wait = 0; |
eba08643 C |
919 | } |
920 | ||
2a8b1fab JM |
921 | |
922 | ||
923 | void monitor_wait_filter(char * buf, | |
924 | int bufmax, | |
925 | int * ext_resp_len, | |
926 | struct target_waitstatus * status | |
927 | ) | |
928 | { | |
929 | int resp_len ; | |
930 | do | |
931 | { | |
932 | resp_len = monitor_expect_prompt (buf, bufmax); | |
933 | * ext_resp_len =resp_len ; | |
934 | ||
935 | if (resp_len <= 0) | |
936 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
937 | } | |
938 | while (resp_len < 0); | |
939 | ||
940 | /* Print any output characters that were preceded by ^O. */ | |
941 | /* FIXME - This would be great as a user settabgle flag */ | |
942 | if (remote_debug || | |
943 | current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
944 | { | |
945 | int i; | |
946 | ||
947 | for (i = 0; i < resp_len - 1; i++) | |
948 | if (buf[i] == 0x0f) | |
949 | putchar_unfiltered (buf[++i]); | |
950 | } | |
951 | } | |
952 | ||
953 | ||
954 | ||
431b7d5f SS |
955 | /* Wait until the remote machine stops, then return, storing status in |
956 | status just as `wait' would. */ | |
957 | ||
a706069f | 958 | static int |
51d6a954 RS |
959 | monitor_wait (pid, status) |
960 | int pid; | |
961 | struct target_waitstatus *status; | |
962 | { | |
963 | int old_timeout = timeout; | |
774e5d7f | 964 | char buf[1024]; |
a706069f | 965 | int resp_len; |
eba08643 | 966 | struct cleanup *old_chain; |
51d6a954 RS |
967 | |
968 | status->kind = TARGET_WAITKIND_EXITED; | |
969 | status->value.integer = 0; | |
970 | ||
c8623080 | 971 | old_chain = make_cleanup (monitor_wait_cleanup, &old_timeout); |
2a8b1fab | 972 | RDEBUG(("MON wait\n")) |
eba08643 | 973 | |
2a8b1fab JM |
974 | #if 0 /* MAINTENANCE_CMDS */ |
975 | /* This is somthing other than a maintenance command */ | |
4a430794 SS |
976 | in_monitor_wait = 1; |
977 | timeout = watchdog > 0 ? watchdog : -1; | |
978 | #else | |
1265e2d8 | 979 | timeout = -1; /* Don't time out -- user program is running. */ |
4a430794 | 980 | #endif |
51d6a954 | 981 | |
eba08643 C |
982 | ofunc = (void (*)()) signal (SIGINT, monitor_interrupt); |
983 | ||
2a8b1fab JM |
984 | if (current_monitor->wait_filter) |
985 | (*current_monitor->wait_filter)(buf,sizeof (buf),&resp_len,status) ; | |
986 | else monitor_wait_filter(buf,sizeof (buf),&resp_len,status) ; | |
987 | ||
988 | #if 0 /* Transferred to monitor wait filter */ | |
a706069f SG |
989 | do |
990 | { | |
774e5d7f | 991 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
51d6a954 | 992 | |
a706069f SG |
993 | if (resp_len <= 0) |
994 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
995 | } | |
996 | while (resp_len < 0); | |
51d6a954 | 997 | |
352f9e9d | 998 | /* Print any output characters that were preceded by ^O. */ |
2a8b1fab JM |
999 | /* FIXME - This would be great as a user settabgle flag */ |
1000 | if (remote_debug || | |
1001 | current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
352f9e9d MA |
1002 | { |
1003 | int i; | |
1004 | ||
1005 | for (i = 0; i < resp_len - 1; i++) | |
1006 | if (buf[i] == 0x0f) | |
1007 | putchar_unfiltered (buf[++i]); | |
1008 | } | |
2a8b1fab | 1009 | #endif |
352f9e9d | 1010 | |
eba08643 C |
1011 | signal (SIGINT, ofunc); |
1012 | ||
51d6a954 | 1013 | timeout = old_timeout; |
2a8b1fab | 1014 | #if 0 |
a706069f SG |
1015 | if (dump_reg_flag && current_monitor->dump_registers) |
1016 | { | |
1017 | dump_reg_flag = 0; | |
774e5d7f SS |
1018 | monitor_printf (current_monitor->dump_registers); |
1019 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
a706069f SG |
1020 | } |
1021 | ||
1022 | if (current_monitor->register_pattern) | |
1023 | parse_register_dump (buf, resp_len); | |
2a8b1fab JM |
1024 | #else |
1025 | RDEBUG(("Wait fetching registers after stop\n")) ; | |
1026 | monitor_dump_regs() ; | |
1027 | #endif | |
a706069f SG |
1028 | |
1029 | status->kind = TARGET_WAITKIND_STOPPED; | |
1030 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1031 | ||
eba08643 C |
1032 | discard_cleanups (old_chain); |
1033 | ||
4a430794 SS |
1034 | in_monitor_wait = 0; |
1035 | ||
1265e2d8 | 1036 | return inferior_pid; |
51d6a954 RS |
1037 | } |
1038 | ||
1265e2d8 SG |
1039 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns |
1040 | errno value. */ | |
51d6a954 | 1041 | |
1265e2d8 SG |
1042 | static void |
1043 | monitor_fetch_register (regno) | |
1044 | int regno; | |
1045 | { | |
1265e2d8 | 1046 | char *name; |
774e5d7f | 1047 | static char zerobuf[MAX_REGISTER_RAW_SIZE] = {0}; |
eba08643 C |
1048 | char regbuf[MAX_REGISTER_RAW_SIZE * 2 + 1]; |
1049 | int i; | |
51d6a954 | 1050 | |
f7ce02f4 | 1051 | name = current_monitor->regnames[regno]; |
2a8b1fab | 1052 | RDEBUG(("MON fetchreg %d '%s'\n",regno,name)) |
f1ca4cbc | 1053 | |
2a8b1fab JM |
1054 | if (!name || (*name == '\0')) |
1055 | { RDEBUG(("No register known for %d\n",regno)) | |
774e5d7f SS |
1056 | supply_register (regno, zerobuf); |
1057 | return; | |
1058 | } | |
51d6a954 | 1059 | |
5be86c56 | 1060 | /* send the register examine command */ |
431b7d5f | 1061 | |
774e5d7f | 1062 | monitor_printf (current_monitor->getreg.cmd, name); |
1b552670 | 1063 | |
69159fad SS |
1064 | /* If RESP_DELIM is specified, we search for that as a leading |
1065 | delimiter for the register value. Otherwise, we just start | |
1066 | searching from the start of the buf. */ | |
eba08643 C |
1067 | |
1068 | if (current_monitor->getreg.resp_delim) | |
7e9576e0 | 1069 | { |
2a8b1fab | 1070 | RDEBUG(("EXP getreg.resp_delim\n")) |
7e9576e0 MA |
1071 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); |
1072 | /* Handle case of first 32 registers listed in pairs. */ | |
1073 | if (current_monitor->flags & MO_32_REGS_PAIRED | |
1074 | && regno & 1 == 1 && regno < 32) | |
2a8b1fab JM |
1075 | { RDEBUG(("EXP getreg.resp_delim\n")) ; |
1076 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); | |
1077 | } | |
7e9576e0 | 1078 | } |
eba08643 | 1079 | |
012be3ce DP |
1080 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set */ |
1081 | if (current_monitor->flags & MO_HEX_PREFIX) | |
1082 | { | |
1083 | int c; | |
1084 | c = readchar (timeout); | |
1085 | while (c == ' ') | |
1086 | c = readchar (timeout); | |
1087 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1088 | ; | |
1089 | else | |
1090 | error ("Bad value returned from monitor while fetching register %x.", | |
1091 | regno); | |
1092 | } | |
1093 | ||
5be86c56 JL |
1094 | /* Read upto the maximum number of hex digits for this register, skipping |
1095 | spaces, but stop reading if something else is seen. Some monitors | |
1096 | like to drop leading zeros. */ | |
eba08643 C |
1097 | |
1098 | for (i = 0; i < REGISTER_RAW_SIZE (regno) * 2; i++) | |
1099 | { | |
1100 | int c; | |
5be86c56 JL |
1101 | c = readchar (timeout); |
1102 | while (c == ' ') | |
1103 | c = readchar (timeout); | |
eba08643 | 1104 | |
5be86c56 JL |
1105 | if (!isxdigit (c)) |
1106 | break; | |
eba08643 C |
1107 | |
1108 | regbuf[i] = c; | |
1109 | } | |
1110 | ||
1111 | regbuf[i] = '\000'; /* terminate the number */ | |
2a8b1fab | 1112 | RDEBUG(("REGVAL '%s'\n",regbuf)) ; |
eba08643 | 1113 | |
69159fad SS |
1114 | /* If TERM is present, we wait for that to show up. Also, (if TERM |
1115 | is present), we will send TERM_CMD if that is present. In any | |
1116 | case, we collect all of the output into buf, and then wait for | |
1117 | the normal prompt. */ | |
1b552670 | 1118 | |
1265e2d8 | 1119 | if (current_monitor->getreg.term) |
431b7d5f | 1120 | { |
2a8b1fab | 1121 | RDEBUG(("EXP getreg.term\n")) |
eba08643 | 1122 | monitor_expect (current_monitor->getreg.term, NULL, 0); /* get response */ |
2a8b1fab | 1123 | } |
1265e2d8 | 1124 | |
2a8b1fab JM |
1125 | if (current_monitor->getreg.term_cmd) |
1126 | { RDEBUG(("EMIT getreg.term.cmd\n")) | |
1127 | monitor_printf (current_monitor->getreg.term_cmd); | |
431b7d5f | 1128 | } |
2a8b1fab JM |
1129 | if (! current_monitor->getreg.term || /* Already expected or */ |
1130 | current_monitor->getreg.term_cmd) /* ack expected */ | |
eba08643 | 1131 | monitor_expect_prompt (NULL, 0); /* get response */ |
51d6a954 | 1132 | |
eba08643 | 1133 | monitor_supply_register (regno, regbuf); |
51d6a954 RS |
1134 | } |
1135 | ||
2a8b1fab JM |
1136 | /* Sometimes, it takes several commands to dump the registers */ |
1137 | /* This is a primitive for use by variations of monitor interfaces in | |
1138 | case they need to compose the operation. | |
1139 | */ | |
1140 | int monitor_dump_reg_block(char * block_cmd) | |
1141 | { | |
1142 | char buf[1024]; | |
1143 | int resp_len; | |
1144 | monitor_printf (block_cmd); | |
1145 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1146 | parse_register_dump (buf, resp_len); | |
1147 | return 1 ; | |
1148 | } | |
1149 | ||
1150 | ||
1265e2d8 | 1151 | /* Read the remote registers into the block regs. */ |
2a8b1fab | 1152 | /* Call the specific function if it has been provided */ |
431b7d5f | 1153 | |
7e9576e0 MA |
1154 | static void |
1155 | monitor_dump_regs () | |
45993f61 | 1156 | { |
8665f3dc MS |
1157 | char buf[1024]; |
1158 | int resp_len; | |
2a8b1fab JM |
1159 | if (current_monitor->dumpregs) |
1160 | (*(current_monitor->dumpregs))() ; /* call supplied function */ | |
1161 | else | |
1162 | if (current_monitor->dump_registers) /* default version */ | |
1163 | { monitor_printf (current_monitor->dump_registers); | |
45993f61 SC |
1164 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
1165 | parse_register_dump (buf, resp_len); | |
1166 | } | |
1167 | else | |
1168 | abort(); /* Need some way to read registers */ | |
1169 | } | |
1170 | ||
a706069f | 1171 | static void |
1265e2d8 SG |
1172 | monitor_fetch_registers (regno) |
1173 | int regno; | |
51d6a954 | 1174 | { |
2a8b1fab | 1175 | RDEBUG(("MON fetchregs\n")) ; |
45993f61 | 1176 | if (current_monitor->getreg.cmd) |
431b7d5f | 1177 | { |
45993f61 SC |
1178 | if (regno >= 0) |
1179 | { | |
1180 | monitor_fetch_register (regno); | |
1181 | return; | |
1182 | } | |
51d6a954 | 1183 | |
45993f61 SC |
1184 | for (regno = 0; regno < NUM_REGS; regno++) |
1185 | monitor_fetch_register (regno); | |
1186 | } | |
1187 | else { | |
1188 | monitor_dump_regs (); | |
1189 | } | |
51d6a954 RS |
1190 | } |
1191 | ||
431b7d5f SS |
1192 | /* Store register REGNO, or all if REGNO == 0. Return errno value. */ |
1193 | ||
1265e2d8 | 1194 | static void |
51d6a954 RS |
1195 | monitor_store_register (regno) |
1196 | int regno; | |
1197 | { | |
1198 | char *name; | |
69159fad | 1199 | unsigned int val; |
f1ca4cbc | 1200 | |
f7ce02f4 | 1201 | name = current_monitor->regnames[regno]; |
2a8b1fab JM |
1202 | if (!name || (*name == '\0')) |
1203 | { RDEBUG(("MON Cannot store unknown register\n")) | |
1204 | return; | |
1205 | } | |
51d6a954 | 1206 | |
1265e2d8 | 1207 | val = read_register (regno); |
2a8b1fab | 1208 | RDEBUG(("MON storeg %d %08x\n",regno,(unsigned int)val)) |
51d6a954 | 1209 | |
7e9576e0 | 1210 | /* send the register deposit command */ |
1265e2d8 | 1211 | |
8665f3dc MS |
1212 | if (current_monitor->flags & MO_REGISTER_VALUE_FIRST) |
1213 | monitor_printf (current_monitor->setreg.cmd, val, name); | |
7e9576e0 MA |
1214 | else if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
1215 | monitor_printf (current_monitor->setreg.cmd, name); | |
8665f3dc MS |
1216 | else |
1217 | monitor_printf (current_monitor->setreg.cmd, name, val); | |
1265e2d8 | 1218 | |
7e9576e0 | 1219 | if (current_monitor->setreg.term) |
2a8b1fab | 1220 | { RDEBUG(("EXP setreg.term\n")) |
7e9576e0 | 1221 | monitor_expect (current_monitor->setreg.term, NULL, 0); |
7e9576e0 MA |
1222 | if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
1223 | monitor_printf ("%x\r", val); | |
7e9576e0 MA |
1224 | monitor_expect_prompt (NULL, 0); |
1225 | } | |
1226 | else | |
1227 | monitor_expect_prompt (NULL, 0); | |
2a8b1fab JM |
1228 | if (current_monitor->setreg.term_cmd) /* Mode exit required */ |
1229 | { RDEBUG(("EXP setreg_termcmd\n")) ; | |
1230 | monitor_printf("%s",current_monitor->setreg.term_cmd) ; | |
1231 | monitor_expect_prompt(NULL,0) ; | |
1232 | } | |
1233 | } /* monitor_store_register */ | |
1265e2d8 SG |
1234 | |
1235 | /* Store the remote registers. */ | |
1236 | ||
a706069f | 1237 | static void |
1265e2d8 SG |
1238 | monitor_store_registers (regno) |
1239 | int regno; | |
1240 | { | |
1241 | if (regno >= 0) | |
431b7d5f | 1242 | { |
1265e2d8 SG |
1243 | monitor_store_register (regno); |
1244 | return; | |
51d6a954 | 1245 | } |
431b7d5f | 1246 | |
1265e2d8 SG |
1247 | for (regno = 0; regno < NUM_REGS; regno++) |
1248 | monitor_store_register (regno); | |
51d6a954 RS |
1249 | } |
1250 | ||
1251 | /* Get ready to modify the registers array. On machines which store | |
1252 | individual registers, this doesn't need to do anything. On machines | |
1253 | which store all the registers in one fell swoop, this makes sure | |
1254 | that registers contains all the registers from the program being | |
1255 | debugged. */ | |
1256 | ||
a706069f | 1257 | static void |
51d6a954 RS |
1258 | monitor_prepare_to_store () |
1259 | { | |
1260 | /* Do nothing, since we can store individual regs */ | |
1261 | } | |
1262 | ||
a706069f SG |
1263 | static void |
1264 | monitor_files_info (ops) | |
1265 | struct target_ops *ops; | |
51d6a954 | 1266 | { |
1265e2d8 | 1267 | printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baud_rate); |
51d6a954 RS |
1268 | } |
1269 | ||
1265e2d8 SG |
1270 | static int |
1271 | monitor_write_memory (memaddr, myaddr, len) | |
51d6a954 | 1272 | CORE_ADDR memaddr; |
2b576293 | 1273 | char *myaddr; |
51d6a954 RS |
1274 | int len; |
1275 | { | |
2a8b1fab | 1276 | unsigned int val, hostval ; |
a706069f SG |
1277 | char *cmd; |
1278 | int i; | |
1b552670 | 1279 | |
2a8b1fab JM |
1280 | RDEBUG(("MON write %d %08x\n",len,(unsigned long)memaddr)) |
1281 | ||
7e9576e0 MA |
1282 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
1283 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
1284 | ||
a706069f | 1285 | /* Use memory fill command for leading 0 bytes. */ |
1b552670 | 1286 | |
a706069f SG |
1287 | if (current_monitor->fill) |
1288 | { | |
1289 | for (i = 0; i < len; i++) | |
1290 | if (myaddr[i] != 0) | |
1291 | break; | |
1292 | ||
1293 | if (i > 4) /* More than 4 zeros is worth doing */ | |
1294 | { | |
2a8b1fab JM |
1295 | RDEBUG(("MON FILL %d\n",i)) |
1296 | if (current_monitor->flags & MO_FILL_USES_ADDR) | |
1297 | monitor_printf (current_monitor->fill, memaddr, (memaddr + i)-1, 0); | |
1298 | else | |
1299 | monitor_printf (current_monitor->fill, memaddr, i, 0); | |
a706069f | 1300 | |
774e5d7f | 1301 | monitor_expect_prompt (NULL, 0); |
a706069f SG |
1302 | |
1303 | return i; | |
1304 | } | |
1305 | } | |
1306 | ||
8665f3dc MS |
1307 | #if 0 |
1308 | /* Can't actually use long longs if VAL is an int (nice idea, though). */ | |
a706069f SG |
1309 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->setmem.cmdll) |
1310 | { | |
1311 | len = 8; | |
1312 | cmd = current_monitor->setmem.cmdll; | |
1313 | } | |
8665f3dc MS |
1314 | else |
1315 | #endif | |
1316 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->setmem.cmdl) | |
a706069f SG |
1317 | { |
1318 | len = 4; | |
1319 | cmd = current_monitor->setmem.cmdl; | |
1320 | } | |
1321 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->setmem.cmdw) | |
1322 | { | |
1323 | len = 2; | |
1324 | cmd = current_monitor->setmem.cmdw; | |
1325 | } | |
1326 | else | |
1327 | { | |
1328 | len = 1; | |
1329 | cmd = current_monitor->setmem.cmdb; | |
1330 | } | |
1331 | ||
1332 | val = extract_unsigned_integer (myaddr, len); | |
2a8b1fab JM |
1333 | |
1334 | if (len == 4) | |
1335 | { hostval = * (unsigned int *) myaddr ; | |
1336 | RDEBUG(("Hostval(%08x) val(%08x)\n",hostval,val)) ; | |
1337 | } | |
1338 | ||
a706069f | 1339 | |
012be3ce DP |
1340 | if (current_monitor->flags & MO_NO_ECHO_ON_SETMEM) |
1341 | monitor_printf_noecho (cmd, memaddr, val); | |
7e9576e0 MA |
1342 | else if (current_monitor->flags & MO_SETMEM_INTERACTIVE) |
1343 | { | |
1344 | ||
1345 | monitor_printf_noecho (cmd, memaddr); | |
1346 | ||
1347 | if (current_monitor->setmem.term) | |
2a8b1fab | 1348 | { RDEBUG(("EXP setmem.term")) ; |
7e9576e0 | 1349 | monitor_expect (current_monitor->setmem.term, NULL, 0); |
7e9576e0 | 1350 | monitor_printf ("%x\r", val); |
2a8b1fab JM |
1351 | } |
1352 | if (current_monitor->setmem.term_cmd) | |
1353 | { /* Emit this to get out of the memory editing state */ | |
1354 | monitor_printf("%s",current_monitor->setmem.term_cmd) ; | |
1355 | /* Drop through to expecting a prompt */ | |
7e9576e0 MA |
1356 | } |
1357 | } | |
012be3ce DP |
1358 | else |
1359 | monitor_printf (cmd, memaddr, val); | |
1265e2d8 | 1360 | |
774e5d7f | 1361 | monitor_expect_prompt (NULL, 0); |
1265e2d8 | 1362 | |
a706069f | 1363 | return len; |
51d6a954 RS |
1364 | } |
1365 | ||
2a8b1fab | 1366 | |
1c3cd1b0 AC |
1367 | static int |
1368 | monitor_write_even_block(memaddr,myaddr,len) | |
2a8b1fab JM |
1369 | CORE_ADDR memaddr ; |
1370 | char * myaddr ; | |
1371 | int len ; | |
1372 | { | |
1373 | unsigned int val ; | |
1374 | int written = 0 ;; | |
1375 | /* Enter the sub mode */ | |
1376 | monitor_printf(current_monitor->setmem.cmdl,memaddr) ; | |
1377 | monitor_expect_prompt(NULL,0) ; | |
1378 | ||
1379 | while (len) | |
1380 | { | |
1381 | val = extract_unsigned_integer(myaddr,4) ; /* REALLY */ | |
1382 | monitor_printf("%x\r",val) ; | |
1383 | myaddr += 4 ; | |
1384 | memaddr += 4 ; | |
1385 | written += 4 ; | |
1386 | RDEBUG((" @ %08x\n",memaddr)) | |
1387 | /* If we wanted to, here we could validate the address */ | |
1388 | monitor_expect_prompt(NULL,0) ; | |
1389 | } | |
1390 | /* Now exit the sub mode */ | |
1391 | monitor_printf (current_monitor->getreg.term_cmd); | |
1392 | monitor_expect_prompt(NULL,0) ; | |
1393 | return written ; | |
1394 | } | |
1395 | ||
1396 | ||
1397 | static int monitor_write_memory_bytes(memaddr,myaddr,len) | |
1398 | CORE_ADDR memaddr ; | |
1399 | char * myaddr ; | |
1400 | int len ; | |
1401 | { | |
1402 | unsigned char val ; | |
1403 | int written = 0 ; | |
1404 | if (len == 0) return 0 ; | |
1405 | /* Enter the sub mode */ | |
1406 | monitor_printf(current_monitor->setmem.cmdb,memaddr) ; | |
1407 | monitor_expect_prompt(NULL,0) ; | |
1408 | while (len) | |
1409 | { | |
1410 | val = *myaddr ; | |
1411 | monitor_printf("%x\r",val) ; | |
1412 | myaddr++ ; | |
1413 | memaddr++ ; | |
1414 | written++ ; | |
1415 | /* If we wanted to, here we could validate the address */ | |
1416 | monitor_expect_prompt(NULL,0) ; | |
1417 | len-- ; | |
1418 | } | |
1419 | /* Now exit the sub mode */ | |
1420 | monitor_printf (current_monitor->getreg.term_cmd); | |
1421 | monitor_expect_prompt(NULL,0) ; | |
1422 | return written ; | |
1423 | } | |
1424 | ||
1425 | ||
1c3cd1b0 AC |
1426 | static void |
1427 | longlongendswap (unsigned char * a) | |
2a8b1fab JM |
1428 | { |
1429 | int i,j ; | |
1430 | unsigned char x ; | |
1431 | i = 0 ; j = 7 ; | |
1432 | while (i < 4) | |
1433 | { x = *(a+i) ; | |
1434 | *(a+i) = *(a+j) ; | |
1435 | *(a+j) = x ; | |
1436 | i++ , j-- ; | |
1437 | } | |
1438 | } | |
1439 | /* Format 32 chars of long long value, advance the pointer */ | |
1440 | static char * hexlate = "0123456789abcdef" ; | |
1441 | static char * longlong_hexchars(unsigned long long value, | |
1442 | char * outbuff ) | |
1443 | { | |
1444 | if (value == 0) { *outbuff++ = '0' ; return outbuff ; } | |
1445 | else | |
1446 | { static unsigned char disbuf[8] ; /* disassembly buffer */ | |
1447 | unsigned char * scan , * limit ; /* loop controls */ | |
1448 | unsigned char c , nib ; | |
1449 | int leadzero = 1 ; | |
1450 | scan = disbuf ; limit = scan + 8 ; | |
1451 | { unsigned long long * dp ; | |
1452 | dp = (unsigned long long *) scan ; | |
1453 | *dp = value ; | |
1454 | } | |
1455 | longlongendswap(disbuf) ; /* FIXME: ONly on big endian hosts */ | |
1456 | while (scan < limit) | |
1457 | { c = *scan++ ; /* a byte of our long long value */ | |
1458 | if (leadzero) | |
1459 | if (c == 0) continue ; | |
1460 | else leadzero = 0 ; /* henceforth we print even zeroes */ | |
1461 | nib = c >> 4 ; /* high nibble bits */ | |
1462 | *outbuff++ = hexlate[nib] ; | |
1463 | nib = c & 0x0f ; /* low nibble bits */ | |
1464 | *outbuff++ = hexlate[nib] ; | |
1465 | } | |
1466 | return outbuff ; | |
1467 | } | |
1468 | } /* longlong_hexchars */ | |
1469 | ||
1470 | ||
1471 | ||
1472 | /* I am only going to call this when writing virtual byte streams. | |
1473 | Which possably entails endian conversions | |
1474 | */ | |
1475 | static int monitor_write_memory_longlongs(memaddr,myaddr,len) | |
1476 | CORE_ADDR memaddr ; | |
1477 | char * myaddr ; | |
1478 | int len ; | |
1479 | { | |
1480 | static char hexstage[20] ; /* At least 16 digits required, plus null */ | |
1481 | char * endstring ; | |
1482 | long long * llptr ; | |
1483 | long long value ; | |
1484 | int written = 0 ; | |
1485 | llptr = (unsigned long long *) myaddr ; | |
1486 | if (len == 0 ) return 0 ; | |
1487 | monitor_printf(current_monitor->setmem.cmdll,memaddr) ; | |
1488 | monitor_expect_prompt(NULL,0) ; | |
1489 | while (len >= 8 ) | |
1490 | { | |
1491 | value = *llptr ; | |
1492 | endstring = longlong_hexchars(*llptr,hexstage) ; | |
1493 | *endstring = '\0' ; /* NUll terminate for printf */ | |
1494 | monitor_printf("%s\r",hexstage) ; | |
1495 | llptr++ ; | |
1496 | memaddr += 8 ; | |
1497 | written += 8 ; | |
1498 | /* If we wanted to, here we could validate the address */ | |
1499 | monitor_expect_prompt(NULL,0) ; | |
1500 | len -= 8 ; | |
1501 | } | |
1502 | /* Now exit the sub mode */ | |
1503 | monitor_printf (current_monitor->getreg.term_cmd); | |
1504 | monitor_expect_prompt(NULL,0) ; | |
1505 | return written ; | |
1506 | } /* */ | |
1507 | ||
1508 | ||
1509 | ||
1510 | /* ----- MONITOR_WRITE_MEMORY_BLOCK ---------------------------- */ | |
1511 | /* This is for the large blocks of memory which may occur in downloading. | |
1512 | And for monitors which use interactive entry, | |
1513 | And for monitors which do not have other downloading methods. | |
1514 | Without this, we will end up calling monitor_write_memory many times | |
1515 | and do the entry and exit of the sub mode many times | |
1516 | This currently assumes... | |
1517 | MO_SETMEM_INTERACTIVE | |
1518 | ! MO_NO_ECHO_ON_SETMEM | |
1519 | To use this, the you have to patch the monitor_cmds block with | |
1520 | this function. Otherwise, its not tuned up for use by all | |
1521 | monitor variations. | |
1522 | */ | |
1523 | ||
1524 | static int monitor_write_memory_block(memaddr,myaddr,len) | |
1525 | CORE_ADDR memaddr ; | |
1526 | char * myaddr ; | |
1527 | int len ; | |
1528 | { | |
1529 | int written ; | |
1530 | written = 0 ; | |
1531 | /* FIXME: This would be a good place to put the zero test */ | |
1532 | #if 1 | |
1533 | if ((len > 8) && (((len & 0x07)) == 0) && current_monitor->setmem.cmdll) | |
1534 | { | |
1535 | return monitor_write_memory_longlongs(memaddr,myaddr,len) ; | |
1536 | } | |
1537 | #endif | |
1538 | #if 0 | |
1539 | if (len > 4) | |
1540 | { | |
1541 | int sublen ; | |
1542 | written = monitor_write_even_block(memaddr,myaddr,len) ; | |
1543 | /* Adjust calling parameters by written amount */ | |
1544 | memaddr += written ; | |
1545 | myaddr += written ; | |
1546 | len -= written ; | |
1547 | } | |
1548 | #endif | |
1549 | written = monitor_write_memory_bytes(memaddr,myaddr,len) ; | |
1550 | return written ; | |
1551 | } | |
1552 | ||
eba08643 C |
1553 | /* This is an alternate form of monitor_read_memory which is used for monitors |
1554 | which can only read a single byte/word/etc. at a time. */ | |
1555 | ||
1556 | static int | |
1557 | monitor_read_memory_single (memaddr, myaddr, len) | |
1558 | CORE_ADDR memaddr; | |
2b576293 | 1559 | char *myaddr; |
eba08643 C |
1560 | int len; |
1561 | { | |
69159fad SS |
1562 | unsigned int val; |
1563 | char membuf[sizeof(int) * 2 + 1]; | |
eba08643 C |
1564 | char *p; |
1565 | char *cmd; | |
1566 | int i; | |
1567 | ||
2a8b1fab | 1568 | RDEBUG(("MON read single\n")) ; |
8665f3dc MS |
1569 | #if 0 |
1570 | /* Can't actually use long longs (nice idea, though). In fact, the | |
1571 | call to strtoul below will fail if it tries to convert a value | |
1572 | that's too big to fit in a long. */ | |
eba08643 C |
1573 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->getmem.cmdll) |
1574 | { | |
1575 | len = 8; | |
1576 | cmd = current_monitor->getmem.cmdll; | |
1577 | } | |
8665f3dc MS |
1578 | else |
1579 | #endif | |
1580 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->getmem.cmdl) | |
eba08643 C |
1581 | { |
1582 | len = 4; | |
1583 | cmd = current_monitor->getmem.cmdl; | |
1584 | } | |
1585 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->getmem.cmdw) | |
1586 | { | |
1587 | len = 2; | |
1588 | cmd = current_monitor->getmem.cmdw; | |
1589 | } | |
1590 | else | |
1591 | { | |
1592 | len = 1; | |
1593 | cmd = current_monitor->getmem.cmdb; | |
1594 | } | |
1595 | ||
15f13cd0 | 1596 | /* Send the examine command. */ |
eba08643 C |
1597 | |
1598 | monitor_printf (cmd, memaddr); | |
1599 | ||
15f13cd0 DE |
1600 | /* If RESP_DELIM is specified, we search for that as a leading |
1601 | delimiter for the memory value. Otherwise, we just start | |
1602 | searching from the start of the buf. */ | |
eba08643 C |
1603 | |
1604 | if (current_monitor->getmem.resp_delim) | |
2a8b1fab JM |
1605 | { RDEBUG(("EXP getmem.resp_delim\n")) ; |
1606 | monitor_expect_regexp (&getmem_resp_delim_pattern, NULL, 0); | |
1607 | } | |
eba08643 | 1608 | |
15f13cd0 DE |
1609 | /* Now, read the appropriate number of hex digits for this loc, |
1610 | skipping spaces. */ | |
eba08643 | 1611 | |
15f13cd0 | 1612 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */ |
012be3ce DP |
1613 | if (current_monitor->flags & MO_HEX_PREFIX) |
1614 | { | |
1615 | int c; | |
15f13cd0 | 1616 | |
012be3ce DP |
1617 | c = readchar (timeout); |
1618 | while (c == ' ') | |
1619 | c = readchar (timeout); | |
1620 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1621 | ; | |
1622 | else | |
15f13cd0 DE |
1623 | error ("monitor_read_memory_single (0x%x): bad response from monitor: %.*s%c.", |
1624 | memaddr, i, membuf, c); | |
012be3ce | 1625 | } |
eba08643 C |
1626 | for (i = 0; i < len * 2; i++) |
1627 | { | |
1628 | int c; | |
1629 | ||
1630 | while (1) | |
1631 | { | |
1632 | c = readchar (timeout); | |
1633 | if (isxdigit (c)) | |
1634 | break; | |
1635 | if (c == ' ') | |
1636 | continue; | |
1637 | ||
1638 | error ("monitor_read_memory_single (0x%x): bad response from monitor: %.*s%c.", | |
1639 | memaddr, i, membuf, c); | |
1640 | } | |
1641 | ||
1642 | membuf[i] = c; | |
1643 | } | |
1644 | ||
1645 | membuf[i] = '\000'; /* terminate the number */ | |
1646 | ||
1647 | /* If TERM is present, we wait for that to show up. Also, (if TERM is | |
1648 | present), we will send TERM_CMD if that is present. In any case, we collect | |
1649 | all of the output into buf, and then wait for the normal prompt. */ | |
1650 | ||
1651 | if (current_monitor->getmem.term) | |
1652 | { | |
1653 | monitor_expect (current_monitor->getmem.term, NULL, 0); /* get response */ | |
1654 | ||
1655 | if (current_monitor->getmem.term_cmd) | |
1656 | { | |
1657 | monitor_printf (current_monitor->getmem.term_cmd); | |
1658 | monitor_expect_prompt (NULL, 0); | |
1659 | } | |
1660 | } | |
1661 | else | |
1662 | monitor_expect_prompt (NULL, 0); /* get response */ | |
1663 | ||
1664 | p = membuf; | |
1665 | val = strtoul (membuf, &p, 16); | |
1666 | ||
1667 | if (val == 0 && membuf == p) | |
1668 | error ("monitor_read_memory_single (0x%x): bad value from monitor: %s.", | |
1669 | memaddr, membuf); | |
1670 | ||
1671 | /* supply register stores in target byte order, so swap here */ | |
1672 | ||
1673 | store_unsigned_integer (myaddr, len, val); | |
1674 | ||
1675 | return len; | |
1676 | } | |
1677 | ||
7e9576e0 MA |
1678 | /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's |
1679 | memory at MEMADDR. Returns length moved. Currently, we do no more | |
1680 | than 16 bytes at a time. */ | |
431b7d5f | 1681 | |
1265e2d8 SG |
1682 | static int |
1683 | monitor_read_memory (memaddr, myaddr, len) | |
51d6a954 RS |
1684 | CORE_ADDR memaddr; |
1685 | char *myaddr; | |
1686 | int len; | |
1687 | { | |
69159fad | 1688 | unsigned int val; |
774e5d7f | 1689 | char buf[512]; |
1265e2d8 | 1690 | char *p, *p1; |
1265e2d8 | 1691 | int resp_len; |
a706069f | 1692 | int i; |
7e9576e0 MA |
1693 | CORE_ADDR dumpaddr; |
1694 | ||
2a8b1fab JM |
1695 | if (remote_debug) printf("MON read block ta(%08x) ha(%08x) %d\n", |
1696 | (unsigned long) memaddr , (unsigned long)myaddr, len); | |
1697 | ||
7e9576e0 MA |
1698 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
1699 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
a706069f | 1700 | |
eba08643 C |
1701 | if (current_monitor->flags & MO_GETMEM_READ_SINGLE) |
1702 | return monitor_read_memory_single (memaddr, myaddr, len); | |
1703 | ||
a706069f | 1704 | len = min (len, 16); |
1265e2d8 | 1705 | |
2a8b1fab JM |
1706 | /* Some dumpers align the first data with the preceeding 16 |
1707 | byte boundary. Some print blanks and start at the | |
1708 | requested boundary. EXACT_DUMPADDR | |
1709 | */ | |
1710 | ||
1711 | dumpaddr = (current_monitor->flags & MO_EXACT_DUMPADDR) | |
1712 | ? memaddr : memaddr & ~ 0x0f ; | |
7e9576e0 | 1713 | |
15f13cd0 | 1714 | /* See if xfer would cross a 16 byte boundary. If so, clip it. */ |
774e5d7f SS |
1715 | if (((memaddr ^ (memaddr + len - 1)) & ~0xf) != 0) |
1716 | len = ((memaddr + len) & ~0xf) - memaddr; | |
1717 | ||
15f13cd0 | 1718 | /* send the memory examine command */ |
1265e2d8 | 1719 | |
774e5d7f SS |
1720 | if (current_monitor->flags & MO_GETMEM_NEEDS_RANGE) |
1721 | monitor_printf (current_monitor->getmem.cmdb, memaddr, memaddr + len - 1); | |
7e9576e0 MA |
1722 | else if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1723 | monitor_printf (current_monitor->getmem.cmdb, dumpaddr); | |
774e5d7f SS |
1724 | else |
1725 | monitor_printf (current_monitor->getmem.cmdb, memaddr, len); | |
1265e2d8 | 1726 | |
15f13cd0 DE |
1727 | /* If TERM is present, we wait for that to show up. Also, (if TERM |
1728 | is present), we will send TERM_CMD if that is present. In any | |
1729 | case, we collect all of the output into buf, and then wait for | |
1730 | the normal prompt. */ | |
1265e2d8 SG |
1731 | |
1732 | if (current_monitor->getmem.term) | |
431b7d5f | 1733 | { |
774e5d7f | 1734 | resp_len = monitor_expect (current_monitor->getmem.term, buf, sizeof buf); /* get response */ |
1265e2d8 SG |
1735 | |
1736 | if (resp_len <= 0) | |
8f078234 SG |
1737 | error ("monitor_read_memory (0x%x): excessive response from monitor: %.*s.", |
1738 | memaddr, resp_len, buf); | |
1265e2d8 SG |
1739 | |
1740 | if (current_monitor->getmem.term_cmd) | |
431b7d5f | 1741 | { |
1265e2d8 SG |
1742 | SERIAL_WRITE (monitor_desc, current_monitor->getmem.term_cmd, |
1743 | strlen (current_monitor->getmem.term_cmd)); | |
774e5d7f | 1744 | monitor_expect_prompt (NULL, 0); |
1b552670 | 1745 | } |
51d6a954 | 1746 | } |
1265e2d8 | 1747 | else |
774e5d7f SS |
1748 | resp_len = monitor_expect_prompt (buf, sizeof buf); /* get response */ |
1749 | ||
1750 | p = buf; | |
1751 | ||
15f13cd0 DE |
1752 | /* If RESP_DELIM is specified, we search for that as a leading |
1753 | delimiter for the values. Otherwise, we just start searching | |
1754 | from the start of the buf. */ | |
1265e2d8 SG |
1755 | |
1756 | if (current_monitor->getmem.resp_delim) | |
1757 | { | |
283dc598 SG |
1758 | int retval, tmp; |
1759 | struct re_registers resp_strings; | |
2a8b1fab | 1760 | RDEBUG(("MON getmem.resp_delim %s\n",current_monitor->getmem.resp_delim)) ; |
283dc598 SG |
1761 | |
1762 | tmp = strlen (p); | |
1763 | retval = re_search (&getmem_resp_delim_pattern, p, tmp, 0, tmp, | |
1764 | &resp_strings); | |
1765 | ||
1766 | if (retval < 0) | |
1767 | error ("monitor_read_memory (0x%x): bad response from monitor: %.*s.", | |
1768 | memaddr, resp_len, buf); | |
1769 | ||
1770 | p += resp_strings.end[0]; | |
1771 | #if 0 | |
774e5d7f | 1772 | p = strstr (p, current_monitor->getmem.resp_delim); |
1265e2d8 | 1773 | if (!p) |
8f078234 SG |
1774 | error ("monitor_read_memory (0x%x): bad response from monitor: %.*s.", |
1775 | memaddr, resp_len, buf); | |
1265e2d8 | 1776 | p += strlen (current_monitor->getmem.resp_delim); |
283dc598 | 1777 | #endif |
1265e2d8 | 1778 | } |
2a8b1fab | 1779 | if (remote_debug) printf("MON scanning %d ,%08x '%s'\n",len,p,p) ; |
7e9576e0 MA |
1780 | if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1781 | { | |
2a8b1fab JM |
1782 | char c ; |
1783 | int fetched = 0 ; | |
7e9576e0 | 1784 | i = len; |
2a8b1fab JM |
1785 | c = *p ; |
1786 | ||
1787 | ||
1788 | while (!(c == '\000' || c == '\n' || c == '\r') && i > 0) | |
1789 | { if (isxdigit (c)) | |
1790 | { if ((dumpaddr >= memaddr) && (i > 0)) | |
1791 | { val = fromhex (c) * 16 + fromhex (*(p+1)); | |
7e9576e0 | 1792 | *myaddr++ = val; |
2a8b1fab | 1793 | if (remote_debug) printf("[%02x]",val) ; |
7e9576e0 | 1794 | --i; |
2a8b1fab | 1795 | fetched++ ; |
7e9576e0 MA |
1796 | } |
1797 | ++dumpaddr; | |
1798 | ++p; | |
1799 | } | |
2a8b1fab JM |
1800 | ++p; /* skip a blank or other non hex char */ |
1801 | c = *p ; | |
7e9576e0 | 1802 | } |
2a8b1fab JM |
1803 | if (fetched == 0) error("Failed to read via monitor") ; |
1804 | if (remote_debug) printf("\n") ; | |
1805 | return fetched ; /* Return the number of bytes actually read */ | |
7e9576e0 | 1806 | } |
2a8b1fab | 1807 | RDEBUG(("MON scanning bytes\n")) ; |
7e9576e0 | 1808 | |
a706069f SG |
1809 | for (i = len; i > 0; i--) |
1810 | { | |
774e5d7f SS |
1811 | /* Skip non-hex chars, but bomb on end of string and newlines */ |
1812 | ||
1813 | while (1) | |
1814 | { | |
1815 | if (isxdigit (*p)) | |
1816 | break; | |
7e9576e0 | 1817 | |
774e5d7f SS |
1818 | if (*p == '\000' || *p == '\n' || *p == '\r') |
1819 | error ("monitor_read_memory (0x%x): badly terminated response from monitor: %.*s", memaddr, resp_len, buf); | |
1820 | p++; | |
1821 | } | |
1822 | ||
a706069f | 1823 | val = strtoul (p, &p1, 16); |
1265e2d8 | 1824 | |
a706069f SG |
1825 | if (val == 0 && p == p1) |
1826 | error ("monitor_read_memory (0x%x): bad value from monitor: %.*s.", memaddr, | |
1827 | resp_len, buf); | |
1265e2d8 | 1828 | |
a706069f | 1829 | *myaddr++ = val; |
774e5d7f SS |
1830 | |
1831 | if (i == 1) | |
1832 | break; | |
1833 | ||
1834 | p = p1; | |
a706069f | 1835 | } |
1265e2d8 | 1836 | |
a706069f | 1837 | return len; |
51d6a954 RS |
1838 | } |
1839 | ||
a706069f | 1840 | static int |
1265e2d8 | 1841 | monitor_xfer_memory (memaddr, myaddr, len, write, target) |
51d6a954 RS |
1842 | CORE_ADDR memaddr; |
1843 | char *myaddr; | |
1844 | int len; | |
1845 | int write; | |
1846 | struct target_ops *target; /* ignored */ | |
1847 | { | |
45993f61 | 1848 | return dcache_xfer_memory (remote_dcache, memaddr, myaddr, len, write); |
51d6a954 RS |
1849 | } |
1850 | ||
a706069f SG |
1851 | static void |
1852 | monitor_kill () | |
51d6a954 RS |
1853 | { |
1854 | return; /* ignore attempts to kill target system */ | |
1855 | } | |
1856 | ||
a706069f SG |
1857 | /* All we actually do is set the PC to the start address of exec_bfd, and start |
1858 | the program at that point. */ | |
1859 | ||
1860 | static void | |
1861 | monitor_create_inferior (exec_file, args, env) | |
1862 | char *exec_file; | |
1863 | char *args; | |
1864 | char **env; | |
1865 | { | |
1866 | if (args && (*args != '\000')) | |
1867 | error ("Args are not supported by the monitor."); | |
1868 | ||
012be3ce | 1869 | first_time = 1; |
a706069f SG |
1870 | clear_proceed_status (); |
1871 | proceed (bfd_get_start_address (exec_bfd), TARGET_SIGNAL_0, 0); | |
1872 | } | |
1873 | ||
51d6a954 RS |
1874 | /* Clean up when a program exits. |
1875 | The program actually lives on in the remote processor's RAM, and may be | |
1876 | run again without a download. Don't leave it full of breakpoint | |
1877 | instructions. */ | |
1878 | ||
a706069f | 1879 | static void |
51d6a954 RS |
1880 | monitor_mourn_inferior () |
1881 | { | |
8f078234 | 1882 | unpush_target (targ_ops); |
51d6a954 RS |
1883 | generic_mourn_inferior (); /* Do all the proper things now */ |
1884 | } | |
1885 | ||
1265e2d8 | 1886 | #define NUM_MONITOR_BREAKPOINTS 8 |
51d6a954 | 1887 | |
1265e2d8 | 1888 | static CORE_ADDR breakaddr[NUM_MONITOR_BREAKPOINTS] = {0}; |
51d6a954 | 1889 | |
431b7d5f SS |
1890 | /* Tell the monitor to add a breakpoint. */ |
1891 | ||
a706069f | 1892 | static int |
51d6a954 RS |
1893 | monitor_insert_breakpoint (addr, shadow) |
1894 | CORE_ADDR addr; | |
1895 | char *shadow; | |
1896 | { | |
1897 | int i; | |
7e9576e0 MA |
1898 | unsigned char *bp; |
1899 | int bplen; | |
1900 | ||
2a8b1fab | 1901 | RDEBUG(("MON inst bkpt %08x\n",addr)) |
7e9576e0 MA |
1902 | if (current_monitor->set_break == NULL) |
1903 | error ("No set_break defined for this monitor"); | |
1904 | ||
1905 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1906 | addr = ADDR_BITS_REMOVE (addr); | |
1907 | ||
1908 | /* Determine appropriate breakpoint size for this address. */ | |
1909 | bp = memory_breakpoint_from_pc (&addr, &bplen); | |
51d6a954 | 1910 | |
1265e2d8 | 1911 | for (i = 0; i < NUM_MONITOR_BREAKPOINTS; i++) |
431b7d5f SS |
1912 | { |
1913 | if (breakaddr[i] == 0) | |
1914 | { | |
1915 | breakaddr[i] = addr; | |
7e9576e0 | 1916 | monitor_read_memory (addr, shadow, bplen); |
f7ce02f4 | 1917 | monitor_printf (current_monitor->set_break, addr); |
774e5d7f | 1918 | monitor_expect_prompt (NULL, 0); |
431b7d5f SS |
1919 | return 0; |
1920 | } | |
f1ca4cbc | 1921 | } |
f1ca4cbc | 1922 | |
1265e2d8 | 1923 | error ("Too many breakpoints (> %d) for monitor.", NUM_MONITOR_BREAKPOINTS); |
51d6a954 RS |
1924 | } |
1925 | ||
431b7d5f SS |
1926 | /* Tell the monitor to remove a breakpoint. */ |
1927 | ||
a706069f | 1928 | static int |
51d6a954 RS |
1929 | monitor_remove_breakpoint (addr, shadow) |
1930 | CORE_ADDR addr; | |
1931 | char *shadow; | |
1932 | { | |
1933 | int i; | |
1934 | ||
2a8b1fab | 1935 | RDEBUG(("MON rmbkpt %08x\n",addr)) |
7e9576e0 MA |
1936 | if (current_monitor->clr_break == NULL) |
1937 | error ("No clr_break defined for this monitor"); | |
1938 | ||
1939 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1940 | addr = ADDR_BITS_REMOVE (addr); | |
1941 | ||
1265e2d8 | 1942 | for (i = 0; i < NUM_MONITOR_BREAKPOINTS; i++) |
431b7d5f SS |
1943 | { |
1944 | if (breakaddr[i] == addr) | |
1945 | { | |
1946 | breakaddr[i] = 0; | |
1947 | /* some monitors remove breakpoints based on the address */ | |
7e9576e0 | 1948 | if (current_monitor->flags & MO_CLR_BREAK_USES_ADDR) |
f7ce02f4 | 1949 | monitor_printf (current_monitor->clr_break, addr); |
7e9576e0 MA |
1950 | else if (current_monitor->flags & MO_CLR_BREAK_1_BASED) |
1951 | monitor_printf (current_monitor->clr_break, i + 1); | |
431b7d5f | 1952 | else |
f7ce02f4 | 1953 | monitor_printf (current_monitor->clr_break, i); |
774e5d7f | 1954 | monitor_expect_prompt (NULL, 0); |
431b7d5f SS |
1955 | return 0; |
1956 | } | |
7804e5bc | 1957 | } |
1265e2d8 | 1958 | fprintf_unfiltered (stderr, "Can't find breakpoint associated with 0x%x\n", addr); |
51d6a954 RS |
1959 | return 1; |
1960 | } | |
1961 | ||
f7ce02f4 DP |
1962 | /* monitor_wait_srec_ack -- wait for the target to send an acknowledgement for |
1963 | an S-record. Return non-zero if the ACK is received properly. */ | |
1964 | ||
1965 | static int | |
1966 | monitor_wait_srec_ack () | |
1967 | { | |
7e9576e0 MA |
1968 | int i, ch; |
1969 | ||
1970 | if (current_monitor->flags & MO_SREC_ACK_PLUS) | |
1971 | { | |
1972 | return (readchar (timeout) == '+'); | |
1973 | } | |
1974 | else if (current_monitor->flags & MO_SREC_ACK_ROTATE) | |
1975 | { | |
1976 | /* Eat two backspaces, a "rotating" char (|/-\), and a space. */ | |
1977 | if ((ch = readchar (1)) < 0) | |
1978 | return 0; | |
1979 | if ((ch = readchar (1)) < 0) | |
1980 | return 0; | |
1981 | if ((ch = readchar (1)) < 0) | |
1982 | return 0; | |
1983 | if ((ch = readchar (1)) < 0) | |
1984 | return 0; | |
1985 | } | |
1986 | return 1; | |
f7ce02f4 DP |
1987 | } |
1988 | ||
774e5d7f | 1989 | /* monitor_load -- download a file. */ |
431b7d5f | 1990 | |
a706069f SG |
1991 | static void |
1992 | monitor_load (file, from_tty) | |
21ed3dcd | 1993 | char *file; |
a706069f | 1994 | int from_tty; |
21ed3dcd | 1995 | { |
45993f61 | 1996 | dcache_flush (remote_dcache); |
2a8b1fab | 1997 | RDEBUG(("MON load\n")) |
45993f61 | 1998 | |
774e5d7f SS |
1999 | if (current_monitor->load_routine) |
2000 | current_monitor->load_routine (monitor_desc, file, hashmark); | |
2001 | else | |
b9ab37f0 | 2002 | { /* The default is ascii S-records */ |
7e9576e0 MA |
2003 | int n; |
2004 | unsigned long load_offset; | |
2005 | char buf[128]; | |
2006 | ||
2007 | /* enable user to specify address for downloading as 2nd arg to load */ | |
2008 | n = sscanf (file, "%s 0x%lx", buf, &load_offset); | |
2009 | if (n > 1) | |
2010 | file = buf; | |
2011 | else | |
2012 | load_offset = 0; | |
2013 | ||
f7ce02f4 | 2014 | monitor_printf (current_monitor->load); |
b9ab37f0 MM |
2015 | if (current_monitor->loadresp) |
2016 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
2017 | ||
7e9576e0 MA |
2018 | load_srec (monitor_desc, file, (bfd_vma) load_offset, |
2019 | 32, SREC_ALL, hashmark, | |
f7ce02f4 DP |
2020 | current_monitor->flags & MO_SREC_ACK ? |
2021 | monitor_wait_srec_ack : NULL); | |
b9ab37f0 MM |
2022 | |
2023 | monitor_expect_prompt (NULL, 0); | |
2024 | } | |
21ed3dcd | 2025 | |
a706069f | 2026 | /* Finally, make the PC point at the start address */ |
431b7d5f | 2027 | |
45993f61 SC |
2028 | if (exec_bfd) |
2029 | write_pc (bfd_get_start_address (exec_bfd)); | |
431b7d5f | 2030 | |
a706069f | 2031 | inferior_pid = 0; /* No process now */ |
51d6a954 | 2032 | |
a706069f SG |
2033 | /* This is necessary because many things were based on the PC at the time that |
2034 | we attached to the monitor, which is no longer valid now that we have loaded | |
2035 | new code (and just changed the PC). Another way to do this might be to call | |
2036 | normal_stop, except that the stack may not be valid, and things would get | |
2037 | horribly confused... */ | |
51d6a954 | 2038 | |
a706069f SG |
2039 | clear_symtab_users (); |
2040 | } | |
2041 | ||
2042 | static void | |
2043 | monitor_stop () | |
2044 | { | |
2a8b1fab | 2045 | RDEBUG(("MON stop\n")) ; |
69159fad SS |
2046 | if ((current_monitor->flags & MO_SEND_BREAK_ON_STOP) != 0) |
2047 | SERIAL_SEND_BREAK (monitor_desc); | |
eba08643 C |
2048 | if (current_monitor->stop) |
2049 | monitor_printf_noecho (current_monitor->stop); | |
51d6a954 RS |
2050 | } |
2051 | ||
431b7d5f SS |
2052 | /* Put a command string, in args, out to MONITOR. Output from MONITOR |
2053 | is placed on the users terminal until the prompt is seen. FIXME: We | |
2054 | read the characters ourseleves here cause of a nasty echo. */ | |
2055 | ||
8f078234 | 2056 | static void |
a706069f | 2057 | monitor_command (args, from_tty) |
431b7d5f | 2058 | char *args; |
a706069f | 2059 | int from_tty; |
51d6a954 | 2060 | { |
7804e5bc | 2061 | char *p; |
a706069f SG |
2062 | int resp_len; |
2063 | char buf[1000]; | |
431b7d5f | 2064 | |
51d6a954 | 2065 | if (monitor_desc == NULL) |
431b7d5f | 2066 | error ("monitor target not open."); |
7804e5bc | 2067 | |
f7ce02f4 | 2068 | p = current_monitor->prompt; |
774e5d7f | 2069 | |
431b7d5f SS |
2070 | /* Send the command. Note that if no args were supplied, then we're |
2071 | just sending the monitor a newline, which is sometimes useful. */ | |
2072 | ||
774e5d7f | 2073 | monitor_printf ("%s\r", (args ? args : "")); |
7804e5bc | 2074 | |
774e5d7f | 2075 | resp_len = monitor_expect_prompt (buf, sizeof buf); |
a706069f SG |
2076 | |
2077 | fputs_unfiltered (buf, gdb_stdout); /* Output the response */ | |
51d6a954 RS |
2078 | } |
2079 | ||
1b552670 | 2080 | /* Convert hex digit A to a number. */ |
431b7d5f | 2081 | |
7e9576e0 | 2082 | #if 0 |
1b552670 RS |
2083 | static int |
2084 | from_hex (a) | |
2085 | int a; | |
2086 | { | |
1b552670 RS |
2087 | if (a >= '0' && a <= '9') |
2088 | return a - '0'; | |
2089 | if (a >= 'a' && a <= 'f') | |
2090 | return a - 'a' + 10; | |
2091 | if (a >= 'A' && a <= 'F') | |
2092 | return a - 'A' + 10; | |
1b552670 | 2093 | |
1265e2d8 | 2094 | error ("Reply contains invalid hex digit 0x%x", a); |
1b552670 | 2095 | } |
7e9576e0 MA |
2096 | #endif |
2097 | ||
2098 | char * | |
2099 | monitor_get_dev_name () | |
2100 | { | |
2101 | return dev_name; | |
2102 | } | |
1b552670 | 2103 | |
c8623080 AC |
2104 | static struct target_ops monitor_ops ; |
2105 | ||
2106 | static void init_base_monitor_ops(void) | |
774e5d7f | 2107 | { |
c8623080 AC |
2108 | monitor_ops.to_shortname = NULL; |
2109 | monitor_ops.to_longname = NULL; | |
2110 | monitor_ops.to_doc = NULL; | |
2111 | monitor_ops.to_open = NULL; | |
2112 | monitor_ops.to_close = monitor_close; | |
2113 | monitor_ops.to_attach = NULL; | |
2114 | monitor_ops.to_detach = monitor_detach; | |
2115 | monitor_ops.to_resume = monitor_resume; | |
2116 | monitor_ops.to_wait = monitor_wait; | |
2117 | monitor_ops.to_fetch_registers = monitor_fetch_registers; | |
2118 | monitor_ops.to_store_registers = monitor_store_registers; | |
2119 | monitor_ops.to_prepare_to_store = monitor_prepare_to_store; | |
2120 | monitor_ops.to_xfer_memory = monitor_xfer_memory; | |
2121 | monitor_ops.to_files_info = monitor_files_info; | |
2122 | monitor_ops.to_insert_breakpoint = monitor_insert_breakpoint; | |
2123 | monitor_ops.to_remove_breakpoint = monitor_remove_breakpoint; | |
2124 | monitor_ops.to_terminal_init = 0; | |
2125 | monitor_ops.to_terminal_inferior = 0; | |
2126 | monitor_ops.to_terminal_ours_for_output = 0; | |
2127 | monitor_ops.to_terminal_ours = 0; | |
2128 | monitor_ops.to_terminal_info = 0; | |
2129 | monitor_ops.to_kill = monitor_kill; | |
2130 | monitor_ops.to_load = monitor_load; | |
2131 | monitor_ops.to_lookup_symbol = 0; | |
2132 | monitor_ops.to_create_inferior = monitor_create_inferior; | |
2133 | monitor_ops.to_mourn_inferior = monitor_mourn_inferior; | |
2134 | monitor_ops.to_can_run = 0; | |
2135 | monitor_ops.to_notice_signals = 0; | |
2136 | monitor_ops.to_thread_alive = 0; | |
2137 | monitor_ops.to_stop = monitor_stop; | |
2138 | monitor_ops.to_stratum = process_stratum; | |
2139 | monitor_ops.DONT_USE = 0; | |
2140 | monitor_ops.to_has_all_memory = 1; | |
2141 | monitor_ops.to_has_memory = 1; | |
2142 | monitor_ops.to_has_stack = 1; | |
2143 | monitor_ops.to_has_registers = 1; | |
2144 | monitor_ops.to_has_execution = 1; | |
2145 | monitor_ops.to_sections = 0; | |
2146 | monitor_ops.to_sections_end = 0; | |
2147 | monitor_ops.to_magic = OPS_MAGIC ; | |
2148 | } /* init_monitor_ops */ | |
a706069f SG |
2149 | |
2150 | /* Init the target_ops structure pointed at by OPS */ | |
2151 | ||
2152 | void | |
2153 | init_monitor_ops (ops) | |
2154 | struct target_ops *ops; | |
2155 | { | |
2156 | memcpy (ops, &monitor_ops, sizeof monitor_ops); | |
2157 | } | |
2158 | ||
431b7d5f SS |
2159 | /* Define additional commands that are usually only used by monitors. */ |
2160 | ||
51d6a954 RS |
2161 | void |
2162 | _initialize_remote_monitors () | |
2163 | { | |
c8623080 | 2164 | init_base_monitor_ops() ; |
51d6a954 RS |
2165 | add_show_from_set (add_set_cmd ("hash", no_class, var_boolean, |
2166 | (char *)&hashmark, | |
2167 | "Set display of activity while downloading a file.\n\ | |
1265e2d8 | 2168 | When enabled, a hashmark \'#\' is displayed.", |
51d6a954 RS |
2169 | &setlist), |
2170 | &showlist); | |
2171 | ||
51d6a954 RS |
2172 | add_com ("monitor", class_obscure, monitor_command, |
2173 | "Send a command to the debug monitor."); | |
2174 | } |