Commit | Line | Data |
---|---|---|
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 | ||
20dd6c3b AC |
74 | static int monitor_printable_string PARAMS ((char *newstr, char *oldstr)); |
75 | static void monitor_error PARAMS ((char *format, CORE_ADDR memaddr, int len, char *string, int final_char)); | |
a706069f SG |
76 | static void monitor_detach PARAMS ((char *args, int from_tty)); |
77 | static void monitor_resume PARAMS ((int pid, int step, enum target_signal sig)); | |
eba08643 C |
78 | static void monitor_interrupt PARAMS ((int signo)); |
79 | static void monitor_interrupt_twice PARAMS ((int signo)); | |
80 | static void monitor_interrupt_query PARAMS ((void)); | |
c8623080 | 81 | static void monitor_wait_cleanup PARAMS ((void *old_timeout)); |
eba08643 | 82 | |
a706069f SG |
83 | static int monitor_wait PARAMS ((int pid, struct target_waitstatus *status)); |
84 | static void monitor_fetch_registers PARAMS ((int regno)); | |
85 | static void monitor_store_registers PARAMS ((int regno)); | |
86 | static void monitor_prepare_to_store PARAMS ((void)); | |
87 | static int monitor_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len, int write, struct target_ops *target)); | |
88 | static void monitor_files_info PARAMS ((struct target_ops *ops)); | |
89 | static int monitor_insert_breakpoint PARAMS ((CORE_ADDR addr, char *shadow)); | |
90 | static int monitor_remove_breakpoint PARAMS ((CORE_ADDR addr, char *shadow)); | |
91 | static void monitor_kill PARAMS ((void)); | |
92 | static void monitor_load PARAMS ((char *file, int from_tty)); | |
93 | static void monitor_mourn_inferior PARAMS ((void)); | |
94 | static void monitor_stop PARAMS ((void)); | |
95 | ||
45993f61 SC |
96 | static int monitor_read_memory PARAMS ((CORE_ADDR addr, char *myaddr,int len)); |
97 | static int monitor_write_memory PARAMS ((CORE_ADDR addr, char *myaddr,int len)); | |
2a8b1fab JM |
98 | static int monitor_write_memory_bytes PARAMS ((CORE_ADDR addr, |
99 | char *myaddr,int len)); | |
100 | static int monitor_write_memory_block PARAMS(( | |
101 | CORE_ADDR memaddr , | |
102 | char * myaddr , | |
103 | int len)) ; | |
69159fad SS |
104 | static int monitor_expect_regexp PARAMS ((struct re_pattern_buffer *pat, |
105 | char *buf, int buflen)); | |
2a8b1fab | 106 | static void monitor_dump_regs PARAMS((void)) ; |
7e9576e0 | 107 | #if 0 |
8f078234 | 108 | static int from_hex PARAMS ((int a)); |
1265e2d8 | 109 | static unsigned long get_hex_word PARAMS ((void)); |
7e9576e0 MA |
110 | #endif |
111 | static void parse_register_dump PARAMS ((char *, int)); | |
06b8f5e4 | 112 | |
8f078234 | 113 | static struct monitor_ops *current_monitor; |
431b7d5f | 114 | |
774e5d7f | 115 | static int hashmark; /* flag set by "set hash" */ |
51d6a954 | 116 | |
1b552670 | 117 | static int timeout = 30; |
431b7d5f | 118 | |
4a430794 SS |
119 | static int in_monitor_wait = 0; /* Non-zero means we are in monitor_wait() */ |
120 | ||
eba08643 C |
121 | static void (*ofunc)(); /* Old SIGINT signal handler */ |
122 | ||
2a8b1fab JM |
123 | /* Extra remote debugging for developing a new rom monitor variation */ |
124 | #if ! defined(EXTRA_RDEBUG) | |
c8623080 | 125 | #define EXTRA_RDEBUG 0 |
2a8b1fab | 126 | #endif |
20dd6c3b | 127 | #define RDEBUG(stuff) { if (EXTRA_RDEBUG && remote_debug) printf stuff ; } |
2a8b1fab | 128 | |
431b7d5f SS |
129 | /* Descriptor for I/O to remote machine. Initialize it to NULL so |
130 | that monitor_open knows that we don't have a file open when the | |
131 | program starts. */ | |
132 | ||
1265e2d8 | 133 | static serial_t monitor_desc = NULL; |
431b7d5f | 134 | |
a706069f SG |
135 | /* Pointer to regexp pattern matching data */ |
136 | ||
137 | static struct re_pattern_buffer register_pattern; | |
283dc598 | 138 | static char register_fastmap[256]; |
a706069f | 139 | |
283dc598 SG |
140 | static struct re_pattern_buffer getmem_resp_delim_pattern; |
141 | static char getmem_resp_delim_fastmap[256]; | |
a706069f SG |
142 | |
143 | static int dump_reg_flag; /* Non-zero means do a dump_registers cmd when | |
144 | monitor_wait wakes up. */ | |
145 | ||
45993f61 | 146 | static DCACHE *remote_dcache; |
012be3ce DP |
147 | static int first_time=0; /* is this the first time we're executing after |
148 | gaving created the child proccess? */ | |
45993f61 | 149 | |
20dd6c3b AC |
150 | /* Convert a string into a printable representation, Return # byte in the |
151 | new string. */ | |
152 | ||
153 | static int | |
154 | monitor_printable_string (newstr, oldstr) | |
155 | char *newstr; | |
156 | char *oldstr; | |
157 | { | |
158 | char *save = newstr; | |
159 | int ch; | |
160 | ||
161 | while ((ch = *oldstr++) != '\0') | |
162 | { | |
163 | switch (ch) | |
164 | { | |
165 | default: | |
166 | if (isprint (ch)) | |
167 | *newstr++ = ch; | |
168 | ||
169 | else | |
170 | { | |
171 | sprintf (newstr, "\\x%02x", ch & 0xff); | |
172 | newstr += 4; | |
173 | } | |
174 | break; | |
175 | ||
176 | case '\\': *newstr++ = '\\'; *newstr++ = '\\'; break; | |
177 | case '\b': *newstr++ = '\\'; *newstr++ = 'b'; break; | |
178 | case '\f': *newstr++ = '\\'; *newstr++ = 't'; break; | |
179 | case '\n': *newstr++ = '\\'; *newstr++ = 'n'; break; | |
180 | case '\r': *newstr++ = '\\'; *newstr++ = 'r'; break; | |
181 | case '\t': *newstr++ = '\\'; *newstr++ = 't'; break; | |
182 | case '\v': *newstr++ = '\\'; *newstr++ = 'v'; break; | |
183 | } | |
184 | } | |
185 | ||
186 | *newstr++ = '\0'; | |
187 | return newstr - save; | |
188 | } | |
189 | ||
190 | /* Print monitor errors with a string, converting the string to printable | |
191 | representation. */ | |
192 | ||
193 | static void | |
194 | monitor_error (format, memaddr, len, string, final_char) | |
195 | char *format; | |
196 | CORE_ADDR memaddr; | |
197 | int len; | |
198 | char *string; | |
199 | int final_char; | |
200 | { | |
201 | int real_len = (len == 0 && string != (char *)0) ? strlen (string) : len; | |
202 | char *safe_string = alloca ((real_len * 4) + 1); | |
203 | char *p, *q; | |
204 | int ch; | |
205 | int safe_len = monitor_printable_string (safe_string, string); | |
206 | ||
207 | if (final_char) | |
208 | error (format, (int)memaddr, p - safe_string, safe_string, final_char); | |
209 | else | |
210 | error (format, (int)memaddr, p - safe_string, safe_string); | |
211 | } | |
212 | ||
7e9576e0 | 213 | /* Convert hex digit A to a number. */ |
b9ab37f0 | 214 | |
7e9576e0 MA |
215 | static int |
216 | fromhex (a) | |
217 | int a; | |
b9ab37f0 | 218 | { |
7e9576e0 MA |
219 | if (a >= '0' && a <= '9') |
220 | return a - '0'; | |
221 | else if (a >= 'a' && a <= 'f') | |
222 | return a - 'a' + 10; | |
2a8b1fab JM |
223 | else |
224 | if (a >= 'A' && a <= 'F') | |
225 | return a - 'A' + 10 ; | |
226 | else error ("Invalid hex digit %d", a); | |
69159fad | 227 | } |
b9ab37f0 | 228 | |
2a8b1fab JM |
229 | /* monitor_vsprintf - similar to vsprintf but handles 64-bit addresses |
230 | ||
231 | This function exists to get around the problem that many host platforms | |
232 | don't have a printf that can print 64-bit addresses. The %A format | |
233 | specification is recognized as a special case, and causes the argument | |
234 | to be printed as a 64-bit hexadecimal address. | |
235 | ||
236 | Only format specifiers of the form "[0-9]*[a-z]" are recognized. | |
237 | If it is a '%s' format, the argument is a string; otherwise the | |
238 | argument is assumed to be a long integer. | |
c8623080 AC |
239 | |
240 | %% is also turned into a single %. | |
2a8b1fab JM |
241 | */ |
242 | ||
243 | static void | |
244 | monitor_vsprintf (sndbuf, pattern, args) | |
245 | char *sndbuf; | |
246 | char *pattern; | |
247 | va_list args; | |
248 | { | |
249 | char format[10]; | |
250 | char fmt; | |
251 | char *p; | |
252 | int i; | |
253 | long arg_int; | |
254 | CORE_ADDR arg_addr; | |
255 | char *arg_string; | |
256 | ||
257 | for (p = pattern; *p; p++) | |
258 | { | |
259 | if (*p == '%') | |
260 | { | |
261 | /* Copy the format specifier to a separate buffer. */ | |
262 | format[0] = *p++; | |
263 | for (i = 1; *p >= '0' && *p <= '9' && i < (int) sizeof (format) - 2; | |
264 | i++, p++) | |
265 | format[i] = *p; | |
266 | format[i] = fmt = *p; | |
267 | format[i+1] = '\0'; | |
268 | ||
269 | /* Fetch the next argument and print it. */ | |
270 | switch (fmt) | |
271 | { | |
c8623080 AC |
272 | case '%': |
273 | strcpy (sndbuf, "%"); | |
274 | break; | |
2a8b1fab JM |
275 | case 'A': |
276 | arg_addr = va_arg (args, CORE_ADDR); | |
277 | strcpy (sndbuf, paddr_nz (arg_addr)); | |
278 | break; | |
279 | case 's': | |
280 | arg_string = va_arg (args, char *); | |
281 | sprintf (sndbuf, format, arg_string); | |
282 | break; | |
283 | default: | |
284 | arg_int = va_arg (args, long); | |
285 | sprintf (sndbuf, format, arg_int); | |
286 | break; | |
287 | } | |
288 | sndbuf += strlen (sndbuf); | |
289 | } | |
290 | else | |
291 | *sndbuf++ = *p; | |
292 | } | |
293 | *sndbuf = '\0'; | |
294 | } | |
295 | ||
296 | ||
eba08643 C |
297 | /* monitor_printf_noecho -- Send data to monitor, but don't expect an echo. |
298 | Works just like printf. */ | |
299 | ||
300 | void | |
4a430794 | 301 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
302 | monitor_printf_noecho (char *pattern, ...) |
303 | #else | |
eba08643 C |
304 | monitor_printf_noecho (va_alist) |
305 | va_dcl | |
85c613aa | 306 | #endif |
eba08643 C |
307 | { |
308 | va_list args; | |
eba08643 C |
309 | char sndbuf[2000]; |
310 | int len; | |
311 | ||
4a430794 | 312 | #if ANSI_PROTOTYPES |
85c613aa C |
313 | va_start (args, pattern); |
314 | #else | |
315 | char *pattern; | |
eba08643 | 316 | va_start (args); |
eba08643 | 317 | pattern = va_arg (args, char *); |
85c613aa | 318 | #endif |
eba08643 | 319 | |
2a8b1fab | 320 | monitor_vsprintf (sndbuf, pattern, args); |
eba08643 | 321 | |
20dd6c3b AC |
322 | len = strlen (sndbuf); |
323 | if (len + 1 > sizeof sndbuf) | |
324 | abort (); | |
325 | ||
2a8b1fab | 326 | #if 0 |
eba08643 | 327 | if (remote_debug > 0) |
7e9576e0 | 328 | puts_debug ("sent -->", sndbuf, "<--"); |
2a8b1fab | 329 | #endif |
4ef1f467 DT |
330 | if (EXTRA_RDEBUG |
331 | && remote_debug) | |
20dd6c3b AC |
332 | { |
333 | char *safe_string = (char *) alloca ((strlen (sndbuf) * 4) + 1); | |
334 | monitor_printable_string (safe_string, sndbuf); | |
335 | printf ("sent[%s]\n", safe_string); | |
336 | } | |
2a8b1fab | 337 | |
1a31a33a | 338 | monitor_write (sndbuf, len); |
eba08643 C |
339 | } |
340 | ||
341 | /* monitor_printf -- Send data to monitor and check the echo. Works just like | |
342 | printf. */ | |
431b7d5f | 343 | |
774e5d7f | 344 | void |
4a430794 | 345 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
346 | monitor_printf (char *pattern, ...) |
347 | #else | |
774e5d7f | 348 | monitor_printf (va_alist) |
51d6a954 | 349 | va_dcl |
85c613aa | 350 | #endif |
51d6a954 RS |
351 | { |
352 | va_list args; | |
eba08643 | 353 | char sndbuf[2000]; |
774e5d7f | 354 | int len; |
51d6a954 | 355 | |
4a430794 | 356 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
357 | va_start (args, pattern); |
358 | #else | |
359 | char *pattern; | |
431b7d5f | 360 | va_start (args); |
431b7d5f | 361 | pattern = va_arg (args, char *); |
85c613aa | 362 | #endif |
51d6a954 | 363 | |
2a8b1fab | 364 | monitor_vsprintf (sndbuf, pattern, args); |
51d6a954 | 365 | |
20dd6c3b AC |
366 | len = strlen (sndbuf); |
367 | if (len + 1 > sizeof sndbuf) | |
368 | abort (); | |
369 | ||
2a8b1fab | 370 | #if 0 |
1265e2d8 | 371 | if (remote_debug > 0) |
7e9576e0 | 372 | puts_debug ("sent -->", sndbuf, "<--"); |
2a8b1fab | 373 | #endif |
4ef1f467 DT |
374 | if (EXTRA_RDEBUG |
375 | && remote_debug) | |
20dd6c3b AC |
376 | { |
377 | char *safe_string = (char *) alloca ((len * 4) + 1); | |
378 | monitor_printable_string (safe_string, sndbuf); | |
379 | printf ("sent[%s]\n", safe_string); | |
380 | } | |
431b7d5f | 381 | |
1a31a33a | 382 | monitor_write (sndbuf, len); |
eba08643 | 383 | |
69159fad SS |
384 | /* We used to expect that the next immediate output was the characters we |
385 | just output, but sometimes some extra junk appeared before the characters | |
386 | we expected, like an extra prompt, or a portmaster sending telnet negotiations. | |
387 | So, just start searching for what we sent, and skip anything unknown. */ | |
2a8b1fab | 388 | RDEBUG(("ExpectEcho\n")) |
69159fad | 389 | monitor_expect (sndbuf, (char *)0, 0); |
e6fa5bd6 RS |
390 | } |
391 | ||
1a31a33a MA |
392 | |
393 | /* Write characters to the remote system. */ | |
394 | ||
395 | void | |
396 | monitor_write (buf, buflen) | |
397 | char *buf; | |
398 | int buflen; | |
399 | { | |
400 | if (SERIAL_WRITE(monitor_desc, buf, buflen)) | |
4ef1f467 DT |
401 | fprintf_unfiltered (gdb_stderr, "SERIAL_WRITE failed: %s\n", |
402 | safe_strerror (errno)); | |
1a31a33a MA |
403 | } |
404 | ||
405 | ||
406 | /* Read a binary character from the remote system, doing all the fancy | |
407 | timeout stuff, but without interpreting the character in any way, | |
408 | and without printing remote debug information. */ | |
409 | ||
410 | int | |
411 | monitor_readchar () | |
412 | { | |
413 | int c; | |
414 | int looping; | |
415 | ||
416 | do | |
417 | { | |
418 | looping = 0; | |
419 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
420 | ||
421 | if (c >= 0) | |
422 | c &= 0xff; /* don't lose bit 7 */ | |
423 | } | |
424 | while (looping); | |
425 | ||
426 | if (c >= 0) | |
427 | return c; | |
428 | ||
429 | if (c == SERIAL_TIMEOUT) | |
430 | error ("Timeout reading from remote system."); | |
431 | ||
432 | perror_with_name ("remote-monitor"); | |
433 | } | |
434 | ||
435 | ||
431b7d5f SS |
436 | /* Read a character from the remote system, doing all the fancy |
437 | timeout stuff. */ | |
438 | ||
51d6a954 | 439 | static int |
431b7d5f | 440 | readchar (timeout) |
51d6a954 RS |
441 | int timeout; |
442 | { | |
443 | int c; | |
69159fad SS |
444 | static enum { last_random, last_nl, last_cr, last_crnl } state = last_random; |
445 | int looping; | |
51d6a954 | 446 | |
69159fad SS |
447 | do |
448 | { | |
449 | looping = 0; | |
450 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
51d6a954 | 451 | |
69159fad SS |
452 | if (c >= 0) |
453 | { | |
454 | c &= 0x7f; | |
2a8b1fab JM |
455 | #if 0 |
456 | /* This seems to interfere with proper function of the | |
457 | input stream */ | |
69159fad SS |
458 | if (remote_debug > 0) |
459 | { | |
460 | char buf[2]; | |
461 | buf[0] = c; | |
462 | buf[1] = '\0'; | |
7e9576e0 | 463 | puts_debug ("read -->", buf, "<--"); |
69159fad | 464 | } |
2a8b1fab JM |
465 | |
466 | #endif | |
69159fad SS |
467 | } |
468 | ||
469 | /* Canonicialize \n\r combinations into one \r */ | |
470 | if ((current_monitor->flags & MO_HANDLE_NL) != 0) | |
471 | { | |
472 | if ((c == '\r' && state == last_nl) | |
473 | || (c == '\n' && state == last_cr)) | |
474 | { | |
475 | state = last_crnl; | |
476 | looping = 1; | |
477 | } | |
478 | else if (c == '\r') | |
479 | state = last_cr; | |
480 | else if (c != '\n') | |
481 | state = last_random; | |
482 | else | |
483 | { | |
484 | state = last_nl; | |
485 | c = '\r'; | |
486 | } | |
487 | } | |
488 | } | |
489 | while (looping); | |
51d6a954 RS |
490 | |
491 | if (c >= 0) | |
69159fad | 492 | return c; |
51d6a954 | 493 | |
431b7d5f | 494 | if (c == SERIAL_TIMEOUT) |
2a8b1fab | 495 | #if 0 /* MAINTENANCE_CMDS */ |
1c3cd1b0 | 496 | /* I fail to see how detaching here can be useful */ |
4a430794 SS |
497 | if (in_monitor_wait) /* Watchdog went off */ |
498 | { | |
499 | target_mourn_inferior (); | |
2a8b1fab | 500 | error ("GDB serial timeout has expired. Target detached.\n"); |
4a430794 SS |
501 | } |
502 | else | |
503 | #endif | |
504 | error ("Timeout reading from remote system."); | |
a706069f | 505 | |
431b7d5f | 506 | perror_with_name ("remote-monitor"); |
51d6a954 RS |
507 | } |
508 | ||
1265e2d8 | 509 | /* Scan input from the remote system, until STRING is found. If BUF is non- |
a706069f SG |
510 | zero, then collect input until we have collected either STRING or BUFLEN-1 |
511 | chars. In either case we terminate BUF with a 0. If input overflows BUF | |
512 | because STRING can't be found, return -1, else return number of chars in BUF | |
513 | (minus the terminating NUL). Note that in the non-overflow case, STRING | |
514 | will be at the end of BUF. */ | |
431b7d5f | 515 | |
774e5d7f SS |
516 | int |
517 | monitor_expect (string, buf, buflen) | |
51d6a954 | 518 | char *string; |
1265e2d8 SG |
519 | char *buf; |
520 | int buflen; | |
51d6a954 RS |
521 | { |
522 | char *p = string; | |
1265e2d8 | 523 | int obuflen = buflen; |
51d6a954 | 524 | int c; |
8665f3dc | 525 | extern struct target_ops *targ_ops; |
20dd6c3b | 526 | |
4ef1f467 DT |
527 | if (EXTRA_RDEBUG |
528 | && remote_debug) | |
20dd6c3b AC |
529 | { |
530 | char *safe_string = (char *) alloca ((strlen (string) * 4) + 1); | |
531 | monitor_printable_string (safe_string, string); | |
532 | printf ("MON Expecting '%s'\n", safe_string); | |
533 | } | |
51d6a954 | 534 | |
51d6a954 | 535 | immediate_quit = 1; |
431b7d5f SS |
536 | while (1) |
537 | { | |
1265e2d8 | 538 | if (buf) |
431b7d5f | 539 | { |
a706069f | 540 | if (buflen < 2) |
431b7d5f | 541 | { |
a706069f | 542 | *buf = '\000'; |
431b7d5f | 543 | immediate_quit = 0; |
1265e2d8 | 544 | return -1; |
431b7d5f | 545 | } |
1265e2d8 SG |
546 | |
547 | c = readchar (timeout); | |
283dc598 SG |
548 | if (c == '\000') |
549 | continue; | |
1265e2d8 SG |
550 | *buf++ = c; |
551 | buflen--; | |
431b7d5f SS |
552 | } |
553 | else | |
1265e2d8 SG |
554 | c = readchar (timeout); |
555 | ||
69159fad SS |
556 | /* Don't expect any ^C sent to be echoed */ |
557 | ||
558 | if (*p == '\003' || c == *p) | |
431b7d5f | 559 | { |
69159fad | 560 | p++; |
1265e2d8 | 561 | if (*p == '\0') |
431b7d5f | 562 | { |
1265e2d8 SG |
563 | immediate_quit = 0; |
564 | ||
a706069f SG |
565 | if (buf) |
566 | { | |
567 | *buf++ = '\000'; | |
568 | return obuflen - buflen; | |
569 | } | |
570 | else | |
571 | return 0; | |
431b7d5f | 572 | } |
1265e2d8 | 573 | } |
8665f3dc MS |
574 | else if ((c == '\021' || c == '\023') && |
575 | (strcmp(targ_ops->to_shortname, "m32r") == 0)) | |
576 | { /* m32r monitor emits random DC1/DC3 chars */ | |
577 | continue; | |
578 | } | |
1265e2d8 SG |
579 | else |
580 | { | |
431b7d5f | 581 | p = string; |
1265e2d8 SG |
582 | if (c == *p) |
583 | p++; | |
431b7d5f | 584 | } |
51d6a954 | 585 | } |
51d6a954 RS |
586 | } |
587 | ||
283dc598 SG |
588 | /* Search for a regexp. */ |
589 | ||
69159fad | 590 | static int |
283dc598 SG |
591 | monitor_expect_regexp (pat, buf, buflen) |
592 | struct re_pattern_buffer *pat; | |
593 | char *buf; | |
594 | int buflen; | |
595 | { | |
596 | char *mybuf; | |
597 | char *p; | |
2a8b1fab | 598 | RDEBUG(("MON Expecting regexp\n")) ; |
283dc598 SG |
599 | if (buf) |
600 | mybuf = buf; | |
601 | else | |
602 | { | |
603 | mybuf = alloca (1024); | |
604 | buflen = 1024; | |
605 | } | |
606 | ||
607 | p = mybuf; | |
608 | while (1) | |
609 | { | |
610 | int retval; | |
611 | ||
612 | if (p - mybuf >= buflen) | |
613 | { /* Buffer about to overflow */ | |
614 | ||
615 | /* On overflow, we copy the upper half of the buffer to the lower half. Not | |
616 | great, but it usually works... */ | |
617 | ||
618 | memcpy (mybuf, mybuf + buflen / 2, buflen / 2); | |
619 | p = mybuf + buflen / 2; | |
620 | } | |
621 | ||
622 | *p++ = readchar (timeout); | |
623 | ||
624 | retval = re_search (pat, mybuf, p - mybuf, 0, p - mybuf, NULL); | |
625 | if (retval >= 0) | |
626 | return 1; | |
627 | } | |
628 | } | |
629 | ||
51d6a954 RS |
630 | /* Keep discarding input until we see the MONITOR prompt. |
631 | ||
632 | The convention for dealing with the prompt is that you | |
633 | o give your command | |
634 | o *then* wait for the prompt. | |
635 | ||
15f13cd0 DE |
636 | Thus the last thing that a procedure does with the serial line will |
637 | be an monitor_expect_prompt(). Exception: monitor_resume does not | |
638 | wait for the prompt, because the terminal is being handed over to | |
639 | the inferior. However, the next thing which happens after that is | |
640 | a monitor_wait which does wait for the prompt. Note that this | |
641 | includes abnormal exit, e.g. error(). This is necessary to prevent | |
642 | getting into states from which we can't recover. */ | |
431b7d5f | 643 | |
774e5d7f SS |
644 | int |
645 | monitor_expect_prompt (buf, buflen) | |
1265e2d8 SG |
646 | char *buf; |
647 | int buflen; | |
51d6a954 | 648 | { |
2a8b1fab | 649 | RDEBUG(("MON Expecting prompt\n")) |
f7ce02f4 | 650 | return monitor_expect (current_monitor->prompt, buf, buflen); |
51d6a954 RS |
651 | } |
652 | ||
431b7d5f SS |
653 | /* Get N 32-bit words from remote, each preceded by a space, and put |
654 | them in registers starting at REGNO. */ | |
655 | ||
7e9576e0 | 656 | #if 0 |
1265e2d8 | 657 | static unsigned long |
51d6a954 RS |
658 | get_hex_word () |
659 | { | |
1265e2d8 | 660 | unsigned long val; |
51d6a954 | 661 | int i; |
1265e2d8 | 662 | int ch; |
51d6a954 | 663 | |
1265e2d8 SG |
664 | do |
665 | ch = readchar (timeout); | |
666 | while (isspace(ch)); | |
cf51c601 | 667 | |
1265e2d8 SG |
668 | val = from_hex (ch); |
669 | ||
670 | for (i = 7; i >= 1; i--) | |
431b7d5f | 671 | { |
1265e2d8 SG |
672 | ch = readchar (timeout); |
673 | if (!isxdigit (ch)) | |
674 | break; | |
675 | val = (val << 4) | from_hex (ch); | |
431b7d5f | 676 | } |
51d6a954 RS |
677 | |
678 | return val; | |
679 | } | |
7e9576e0 | 680 | #endif |
51d6a954 | 681 | |
283dc598 SG |
682 | static void |
683 | compile_pattern (pattern, compiled_pattern, fastmap) | |
684 | char *pattern; | |
685 | struct re_pattern_buffer *compiled_pattern; | |
686 | char *fastmap; | |
687 | { | |
688 | int tmp; | |
c8623080 | 689 | const char *val; |
283dc598 SG |
690 | |
691 | compiled_pattern->fastmap = fastmap; | |
692 | ||
693 | tmp = re_set_syntax (RE_SYNTAX_EMACS); | |
694 | val = re_compile_pattern (pattern, | |
695 | strlen (pattern), | |
696 | compiled_pattern); | |
697 | re_set_syntax (tmp); | |
698 | ||
699 | if (val) | |
700 | error ("compile_pattern: Can't compile pattern string `%s': %s!", pattern, val); | |
701 | ||
702 | if (fastmap) | |
703 | re_compile_fastmap (compiled_pattern); | |
704 | } | |
705 | ||
431b7d5f SS |
706 | /* Open a connection to a remote debugger. NAME is the filename used |
707 | for communication. */ | |
708 | ||
51d6a954 | 709 | void |
1265e2d8 | 710 | monitor_open (args, mon_ops, from_tty) |
51d6a954 | 711 | char *args; |
1265e2d8 | 712 | struct monitor_ops *mon_ops; |
51d6a954 RS |
713 | int from_tty; |
714 | { | |
1265e2d8 | 715 | char *name; |
a706069f SG |
716 | char **p; |
717 | ||
718 | if (mon_ops->magic != MONITOR_OPS_MAGIC) | |
719 | error ("Magic number of monitor_ops struct wrong."); | |
1265e2d8 SG |
720 | |
721 | targ_ops = mon_ops->target; | |
722 | name = targ_ops->to_shortname; | |
51d6a954 | 723 | |
1265e2d8 | 724 | if (!args) |
51d6a954 RS |
725 | error ("Use `target %s DEVICE-NAME' to use a serial port, or \n\ |
726 | `target %s HOST-NAME:PORT-NUMBER' to use a network connection.", name, name); | |
727 | ||
1265e2d8 SG |
728 | target_preopen (from_tty); |
729 | ||
a706069f SG |
730 | /* Setup pattern for register dump */ |
731 | ||
732 | if (mon_ops->register_pattern) | |
283dc598 SG |
733 | compile_pattern (mon_ops->register_pattern, ®ister_pattern, |
734 | register_fastmap); | |
735 | ||
736 | if (mon_ops->getmem.resp_delim) | |
737 | compile_pattern (mon_ops->getmem.resp_delim, &getmem_resp_delim_pattern, | |
738 | getmem_resp_delim_fastmap); | |
a706069f | 739 | |
1265e2d8 SG |
740 | unpush_target (targ_ops); |
741 | ||
742 | if (dev_name) | |
743 | free (dev_name); | |
744 | dev_name = strsave (args); | |
51d6a954 | 745 | |
431b7d5f | 746 | monitor_desc = SERIAL_OPEN (dev_name); |
51d6a954 | 747 | |
1265e2d8 | 748 | if (!monitor_desc) |
431b7d5f SS |
749 | perror_with_name (dev_name); |
750 | ||
751 | if (baud_rate != -1) | |
752 | { | |
753 | if (SERIAL_SETBAUDRATE (monitor_desc, baud_rate)) | |
754 | { | |
755 | SERIAL_CLOSE (monitor_desc); | |
1265e2d8 | 756 | perror_with_name (dev_name); |
431b7d5f | 757 | } |
51d6a954 | 758 | } |
7a1330f7 | 759 | |
431b7d5f | 760 | SERIAL_RAW (monitor_desc); |
51d6a954 | 761 | |
1265e2d8 SG |
762 | SERIAL_FLUSH_INPUT (monitor_desc); |
763 | ||
cf51c601 | 764 | /* some systems only work with 2 stop bits */ |
1265e2d8 SG |
765 | |
766 | SERIAL_SETSTOPBITS (monitor_desc, mon_ops->stopbits); | |
767 | ||
768 | current_monitor = mon_ops; | |
51d6a954 | 769 | |
a706069f SG |
770 | /* See if we can wake up the monitor. First, try sending a stop sequence, |
771 | then send the init strings. Last, remove all breakpoints. */ | |
772 | ||
eba08643 C |
773 | if (current_monitor->stop) |
774 | { | |
775 | monitor_stop (); | |
69159fad SS |
776 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) |
777 | { | |
2a8b1fab JM |
778 | RDEBUG(("EXP Open echo\n")) ; |
779 | monitor_expect_prompt (NULL, 0); | |
69159fad | 780 | } |
eba08643 | 781 | } |
431b7d5f | 782 | |
1265e2d8 | 783 | /* wake up the monitor and see if it's alive */ |
a706069f SG |
784 | for (p = mon_ops->init; *p != NULL; p++) |
785 | { | |
69159fad SS |
786 | /* Some of the characters we send may not be echoed, |
787 | but we hope to get a prompt at the end of it all. */ | |
788 | ||
789 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) | |
790 | monitor_printf(*p); | |
791 | else | |
792 | monitor_printf_noecho (*p); | |
774e5d7f | 793 | monitor_expect_prompt (NULL, 0); |
a706069f SG |
794 | } |
795 | ||
eba08643 C |
796 | SERIAL_FLUSH_INPUT (monitor_desc); |
797 | ||
a706069f | 798 | /* Remove all breakpoints */ |
431b7d5f | 799 | |
a706069f SG |
800 | if (mon_ops->clr_all_break) |
801 | { | |
774e5d7f SS |
802 | monitor_printf (mon_ops->clr_all_break); |
803 | monitor_expect_prompt (NULL, 0); | |
a706069f | 804 | } |
1265e2d8 | 805 | |
51d6a954 | 806 | if (from_tty) |
1265e2d8 SG |
807 | printf_unfiltered ("Remote target %s connected to %s\n", name, dev_name); |
808 | ||
809 | push_target (targ_ops); | |
810 | ||
811 | inferior_pid = 42000; /* Make run command think we are busy... */ | |
812 | ||
eba08643 C |
813 | /* Give monitor_wait something to read */ |
814 | ||
815 | monitor_printf (current_monitor->line_term); | |
1265e2d8 | 816 | |
2a8b1fab JM |
817 | if (current_monitor->flags & MO_HAS_BLOCKWRITES) |
818 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory_block); | |
819 | else | |
820 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory); | |
1265e2d8 | 821 | start_remote (); |
51d6a954 RS |
822 | } |
823 | ||
431b7d5f SS |
824 | /* Close out all files and local state before this target loses |
825 | control. */ | |
51d6a954 | 826 | |
69159fad | 827 | void |
51d6a954 RS |
828 | monitor_close (quitting) |
829 | int quitting; | |
830 | { | |
1265e2d8 SG |
831 | if (monitor_desc) |
832 | SERIAL_CLOSE (monitor_desc); | |
51d6a954 | 833 | monitor_desc = NULL; |
51d6a954 RS |
834 | } |
835 | ||
431b7d5f SS |
836 | /* Terminate the open connection to the remote debugger. Use this |
837 | when you want to detach and do something else with your gdb. */ | |
838 | ||
a706069f | 839 | static void |
1265e2d8 SG |
840 | monitor_detach (args, from_tty) |
841 | char *args; | |
51d6a954 RS |
842 | int from_tty; |
843 | { | |
431b7d5f | 844 | pop_target (); /* calls monitor_close to do the real work */ |
51d6a954 | 845 | if (from_tty) |
1265e2d8 | 846 | printf_unfiltered ("Ending remote %s debugging\n", target_shortname); |
51d6a954 | 847 | } |
7804e5bc | 848 | |
a706069f SG |
849 | /* Convert VALSTR into the target byte-ordered value of REGNO and store it. */ |
850 | ||
851 | char * | |
852 | monitor_supply_register (regno, valstr) | |
853 | int regno; | |
854 | char *valstr; | |
855 | { | |
69159fad | 856 | unsigned int val; |
a706069f SG |
857 | unsigned char regbuf[MAX_REGISTER_RAW_SIZE]; |
858 | char *p; | |
859 | ||
860 | val = strtoul (valstr, &p, 16); | |
2a8b1fab | 861 | RDEBUG(("Supplying Register %d %s\n",regno,valstr)) ; |
a706069f SG |
862 | |
863 | if (val == 0 && valstr == p) | |
864 | error ("monitor_supply_register (%d): bad value from monitor: %s.", | |
865 | regno, valstr); | |
866 | ||
867 | /* supply register stores in target byte order, so swap here */ | |
868 | ||
869 | store_unsigned_integer (regbuf, REGISTER_RAW_SIZE (regno), val); | |
870 | ||
871 | supply_register (regno, regbuf); | |
872 | ||
873 | return p; | |
874 | } | |
875 | ||
431b7d5f SS |
876 | /* Tell the remote machine to resume. */ |
877 | ||
1c3cd1b0 AC |
878 | void |
879 | flush_monitor_dcache () | |
880 | { | |
881 | dcache_flush (remote_dcache); | |
882 | } | |
2a8b1fab | 883 | |
a706069f | 884 | static void |
51d6a954 RS |
885 | monitor_resume (pid, step, sig) |
886 | int pid, step; | |
887 | enum target_signal sig; | |
888 | { | |
012be3ce | 889 | /* Some monitors require a different command when starting a program */ |
2a8b1fab | 890 | RDEBUG(("MON resume\n")) ; |
012be3ce DP |
891 | if (current_monitor->flags & MO_RUN_FIRST_TIME && first_time == 1) |
892 | { | |
893 | first_time = 0; | |
894 | monitor_printf ("run\r"); | |
895 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) | |
896 | dump_reg_flag = 1; | |
897 | return; | |
898 | } | |
45993f61 | 899 | dcache_flush (remote_dcache); |
431b7d5f | 900 | if (step) |
f7ce02f4 | 901 | monitor_printf (current_monitor->step); |
431b7d5f | 902 | else |
a706069f | 903 | { |
2a8b1fab JM |
904 | if (current_monitor->continue_hook) |
905 | (*current_monitor->continue_hook)() ; | |
906 | else monitor_printf (current_monitor->cont); | |
a706069f SG |
907 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) |
908 | dump_reg_flag = 1; | |
909 | } | |
910 | } | |
911 | ||
69159fad SS |
912 | /* Parse the output of a register dump command. A monitor specific |
913 | regexp is used to extract individual register descriptions of the | |
914 | form REG=VAL. Each description is split up into a name and a value | |
915 | string which are passed down to monitor specific code. */ | |
a706069f | 916 | |
7e9576e0 | 917 | static void |
a706069f SG |
918 | parse_register_dump (buf, len) |
919 | char *buf; | |
920 | int len; | |
921 | { | |
2a8b1fab | 922 | RDEBUG(("MON Parsing register dump\n")) |
a706069f SG |
923 | while (1) |
924 | { | |
925 | int regnamelen, vallen; | |
926 | char *regname, *val; | |
69159fad SS |
927 | /* Element 0 points to start of register name, and element 1 |
928 | points to the start of the register value. */ | |
283dc598 | 929 | struct re_registers register_strings; |
a706069f | 930 | |
edc452d0 JM |
931 | memset (®ister_strings, 0, sizeof (struct re_registers)); |
932 | ||
a706069f SG |
933 | if (re_search (®ister_pattern, buf, len, 0, len, |
934 | ®ister_strings) == -1) | |
935 | break; | |
936 | ||
937 | regnamelen = register_strings.end[1] - register_strings.start[1]; | |
938 | regname = buf + register_strings.start[1]; | |
939 | vallen = register_strings.end[2] - register_strings.start[2]; | |
940 | val = buf + register_strings.start[2]; | |
941 | ||
942 | current_monitor->supply_register (regname, regnamelen, val, vallen); | |
943 | ||
944 | buf += register_strings.end[0]; | |
945 | len -= register_strings.end[0]; | |
946 | } | |
51d6a954 RS |
947 | } |
948 | ||
eba08643 C |
949 | /* Send ^C to target to halt it. Target will respond, and send us a |
950 | packet. */ | |
951 | ||
952 | static void | |
953 | monitor_interrupt (signo) | |
954 | int signo; | |
955 | { | |
956 | /* If this doesn't work, try more severe steps. */ | |
957 | signal (signo, monitor_interrupt_twice); | |
958 | ||
959 | if (remote_debug) | |
960 | printf_unfiltered ("monitor_interrupt called\n"); | |
961 | ||
962 | target_stop (); | |
963 | } | |
964 | ||
965 | /* The user typed ^C twice. */ | |
966 | ||
967 | static void | |
968 | monitor_interrupt_twice (signo) | |
969 | int signo; | |
970 | { | |
971 | signal (signo, ofunc); | |
972 | ||
973 | monitor_interrupt_query (); | |
974 | ||
975 | signal (signo, monitor_interrupt); | |
976 | } | |
977 | ||
978 | /* Ask the user what to do when an interrupt is received. */ | |
979 | ||
980 | static void | |
981 | monitor_interrupt_query () | |
982 | { | |
983 | target_terminal_ours (); | |
984 | ||
985 | if (query ("Interrupted while waiting for the program.\n\ | |
986 | Give up (and stop debugging it)? ")) | |
987 | { | |
988 | target_mourn_inferior (); | |
989 | return_to_top_level (RETURN_QUIT); | |
990 | } | |
991 | ||
992 | target_terminal_inferior (); | |
993 | } | |
994 | ||
995 | static void | |
996 | monitor_wait_cleanup (old_timeout) | |
c8623080 | 997 | void *old_timeout; |
eba08643 | 998 | { |
c8623080 | 999 | timeout = *(int*)old_timeout; |
eba08643 | 1000 | signal (SIGINT, ofunc); |
4a430794 | 1001 | in_monitor_wait = 0; |
eba08643 C |
1002 | } |
1003 | ||
2a8b1fab JM |
1004 | |
1005 | ||
1006 | void monitor_wait_filter(char * buf, | |
1007 | int bufmax, | |
1008 | int * ext_resp_len, | |
1009 | struct target_waitstatus * status | |
1010 | ) | |
1011 | { | |
1012 | int resp_len ; | |
1013 | do | |
1014 | { | |
1015 | resp_len = monitor_expect_prompt (buf, bufmax); | |
1016 | * ext_resp_len =resp_len ; | |
1017 | ||
1018 | if (resp_len <= 0) | |
1019 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1020 | } | |
1021 | while (resp_len < 0); | |
1022 | ||
1023 | /* Print any output characters that were preceded by ^O. */ | |
1024 | /* FIXME - This would be great as a user settabgle flag */ | |
1025 | if (remote_debug || | |
1026 | current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
1027 | { | |
1028 | int i; | |
1029 | ||
1030 | for (i = 0; i < resp_len - 1; i++) | |
1031 | if (buf[i] == 0x0f) | |
1032 | putchar_unfiltered (buf[++i]); | |
1033 | } | |
1034 | } | |
1035 | ||
1036 | ||
1037 | ||
431b7d5f SS |
1038 | /* Wait until the remote machine stops, then return, storing status in |
1039 | status just as `wait' would. */ | |
1040 | ||
a706069f | 1041 | static int |
51d6a954 RS |
1042 | monitor_wait (pid, status) |
1043 | int pid; | |
1044 | struct target_waitstatus *status; | |
1045 | { | |
1046 | int old_timeout = timeout; | |
774e5d7f | 1047 | char buf[1024]; |
a706069f | 1048 | int resp_len; |
eba08643 | 1049 | struct cleanup *old_chain; |
51d6a954 RS |
1050 | |
1051 | status->kind = TARGET_WAITKIND_EXITED; | |
1052 | status->value.integer = 0; | |
1053 | ||
c8623080 | 1054 | old_chain = make_cleanup (monitor_wait_cleanup, &old_timeout); |
2a8b1fab | 1055 | RDEBUG(("MON wait\n")) |
eba08643 | 1056 | |
2a8b1fab JM |
1057 | #if 0 /* MAINTENANCE_CMDS */ |
1058 | /* This is somthing other than a maintenance command */ | |
4a430794 SS |
1059 | in_monitor_wait = 1; |
1060 | timeout = watchdog > 0 ? watchdog : -1; | |
1061 | #else | |
1265e2d8 | 1062 | timeout = -1; /* Don't time out -- user program is running. */ |
4a430794 | 1063 | #endif |
51d6a954 | 1064 | |
eba08643 C |
1065 | ofunc = (void (*)()) signal (SIGINT, monitor_interrupt); |
1066 | ||
2a8b1fab JM |
1067 | if (current_monitor->wait_filter) |
1068 | (*current_monitor->wait_filter)(buf,sizeof (buf),&resp_len,status) ; | |
1069 | else monitor_wait_filter(buf,sizeof (buf),&resp_len,status) ; | |
1070 | ||
1071 | #if 0 /* Transferred to monitor wait filter */ | |
a706069f SG |
1072 | do |
1073 | { | |
774e5d7f | 1074 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
51d6a954 | 1075 | |
a706069f SG |
1076 | if (resp_len <= 0) |
1077 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1078 | } | |
1079 | while (resp_len < 0); | |
51d6a954 | 1080 | |
352f9e9d | 1081 | /* Print any output characters that were preceded by ^O. */ |
2a8b1fab JM |
1082 | /* FIXME - This would be great as a user settabgle flag */ |
1083 | if (remote_debug || | |
1084 | current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
352f9e9d MA |
1085 | { |
1086 | int i; | |
1087 | ||
1088 | for (i = 0; i < resp_len - 1; i++) | |
1089 | if (buf[i] == 0x0f) | |
1090 | putchar_unfiltered (buf[++i]); | |
1091 | } | |
2a8b1fab | 1092 | #endif |
352f9e9d | 1093 | |
eba08643 C |
1094 | signal (SIGINT, ofunc); |
1095 | ||
51d6a954 | 1096 | timeout = old_timeout; |
2a8b1fab | 1097 | #if 0 |
a706069f SG |
1098 | if (dump_reg_flag && current_monitor->dump_registers) |
1099 | { | |
1100 | dump_reg_flag = 0; | |
774e5d7f SS |
1101 | monitor_printf (current_monitor->dump_registers); |
1102 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
a706069f SG |
1103 | } |
1104 | ||
1105 | if (current_monitor->register_pattern) | |
1106 | parse_register_dump (buf, resp_len); | |
2a8b1fab JM |
1107 | #else |
1108 | RDEBUG(("Wait fetching registers after stop\n")) ; | |
1109 | monitor_dump_regs() ; | |
1110 | #endif | |
a706069f SG |
1111 | |
1112 | status->kind = TARGET_WAITKIND_STOPPED; | |
1113 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1114 | ||
eba08643 C |
1115 | discard_cleanups (old_chain); |
1116 | ||
4a430794 SS |
1117 | in_monitor_wait = 0; |
1118 | ||
1265e2d8 | 1119 | return inferior_pid; |
51d6a954 RS |
1120 | } |
1121 | ||
1265e2d8 SG |
1122 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns |
1123 | errno value. */ | |
51d6a954 | 1124 | |
1265e2d8 SG |
1125 | static void |
1126 | monitor_fetch_register (regno) | |
1127 | int regno; | |
1128 | { | |
1265e2d8 | 1129 | char *name; |
774e5d7f | 1130 | static char zerobuf[MAX_REGISTER_RAW_SIZE] = {0}; |
eba08643 C |
1131 | char regbuf[MAX_REGISTER_RAW_SIZE * 2 + 1]; |
1132 | int i; | |
51d6a954 | 1133 | |
f7ce02f4 | 1134 | name = current_monitor->regnames[regno]; |
2a8b1fab | 1135 | RDEBUG(("MON fetchreg %d '%s'\n",regno,name)) |
f1ca4cbc | 1136 | |
2a8b1fab JM |
1137 | if (!name || (*name == '\0')) |
1138 | { RDEBUG(("No register known for %d\n",regno)) | |
774e5d7f SS |
1139 | supply_register (regno, zerobuf); |
1140 | return; | |
1141 | } | |
51d6a954 | 1142 | |
5be86c56 | 1143 | /* send the register examine command */ |
431b7d5f | 1144 | |
774e5d7f | 1145 | monitor_printf (current_monitor->getreg.cmd, name); |
1b552670 | 1146 | |
69159fad SS |
1147 | /* If RESP_DELIM is specified, we search for that as a leading |
1148 | delimiter for the register value. Otherwise, we just start | |
1149 | searching from the start of the buf. */ | |
eba08643 C |
1150 | |
1151 | if (current_monitor->getreg.resp_delim) | |
7e9576e0 | 1152 | { |
2a8b1fab | 1153 | RDEBUG(("EXP getreg.resp_delim\n")) |
7e9576e0 MA |
1154 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); |
1155 | /* Handle case of first 32 registers listed in pairs. */ | |
1156 | if (current_monitor->flags & MO_32_REGS_PAIRED | |
1157 | && regno & 1 == 1 && regno < 32) | |
2a8b1fab JM |
1158 | { RDEBUG(("EXP getreg.resp_delim\n")) ; |
1159 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); | |
1160 | } | |
7e9576e0 | 1161 | } |
eba08643 | 1162 | |
012be3ce DP |
1163 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set */ |
1164 | if (current_monitor->flags & MO_HEX_PREFIX) | |
1165 | { | |
1166 | int c; | |
1167 | c = readchar (timeout); | |
1168 | while (c == ' ') | |
1169 | c = readchar (timeout); | |
1170 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1171 | ; | |
1172 | else | |
1173 | error ("Bad value returned from monitor while fetching register %x.", | |
1174 | regno); | |
1175 | } | |
1176 | ||
5be86c56 JL |
1177 | /* Read upto the maximum number of hex digits for this register, skipping |
1178 | spaces, but stop reading if something else is seen. Some monitors | |
1179 | like to drop leading zeros. */ | |
eba08643 C |
1180 | |
1181 | for (i = 0; i < REGISTER_RAW_SIZE (regno) * 2; i++) | |
1182 | { | |
1183 | int c; | |
5be86c56 JL |
1184 | c = readchar (timeout); |
1185 | while (c == ' ') | |
1186 | c = readchar (timeout); | |
eba08643 | 1187 | |
5be86c56 JL |
1188 | if (!isxdigit (c)) |
1189 | break; | |
eba08643 C |
1190 | |
1191 | regbuf[i] = c; | |
1192 | } | |
1193 | ||
1194 | regbuf[i] = '\000'; /* terminate the number */ | |
2a8b1fab | 1195 | RDEBUG(("REGVAL '%s'\n",regbuf)) ; |
eba08643 | 1196 | |
69159fad SS |
1197 | /* If TERM is present, we wait for that to show up. Also, (if TERM |
1198 | is present), we will send TERM_CMD if that is present. In any | |
1199 | case, we collect all of the output into buf, and then wait for | |
1200 | the normal prompt. */ | |
1b552670 | 1201 | |
1265e2d8 | 1202 | if (current_monitor->getreg.term) |
431b7d5f | 1203 | { |
2a8b1fab | 1204 | RDEBUG(("EXP getreg.term\n")) |
eba08643 | 1205 | monitor_expect (current_monitor->getreg.term, NULL, 0); /* get response */ |
2a8b1fab | 1206 | } |
1265e2d8 | 1207 | |
2a8b1fab JM |
1208 | if (current_monitor->getreg.term_cmd) |
1209 | { RDEBUG(("EMIT getreg.term.cmd\n")) | |
1210 | monitor_printf (current_monitor->getreg.term_cmd); | |
431b7d5f | 1211 | } |
2a8b1fab JM |
1212 | if (! current_monitor->getreg.term || /* Already expected or */ |
1213 | current_monitor->getreg.term_cmd) /* ack expected */ | |
eba08643 | 1214 | monitor_expect_prompt (NULL, 0); /* get response */ |
51d6a954 | 1215 | |
eba08643 | 1216 | monitor_supply_register (regno, regbuf); |
51d6a954 RS |
1217 | } |
1218 | ||
2a8b1fab JM |
1219 | /* Sometimes, it takes several commands to dump the registers */ |
1220 | /* This is a primitive for use by variations of monitor interfaces in | |
1221 | case they need to compose the operation. | |
1222 | */ | |
1223 | int monitor_dump_reg_block(char * block_cmd) | |
1224 | { | |
1225 | char buf[1024]; | |
1226 | int resp_len; | |
1227 | monitor_printf (block_cmd); | |
1228 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1229 | parse_register_dump (buf, resp_len); | |
1230 | return 1 ; | |
1231 | } | |
1232 | ||
1233 | ||
1265e2d8 | 1234 | /* Read the remote registers into the block regs. */ |
2a8b1fab | 1235 | /* Call the specific function if it has been provided */ |
431b7d5f | 1236 | |
7e9576e0 MA |
1237 | static void |
1238 | monitor_dump_regs () | |
45993f61 | 1239 | { |
8665f3dc MS |
1240 | char buf[1024]; |
1241 | int resp_len; | |
2a8b1fab JM |
1242 | if (current_monitor->dumpregs) |
1243 | (*(current_monitor->dumpregs))() ; /* call supplied function */ | |
1244 | else | |
1245 | if (current_monitor->dump_registers) /* default version */ | |
1246 | { monitor_printf (current_monitor->dump_registers); | |
45993f61 SC |
1247 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
1248 | parse_register_dump (buf, resp_len); | |
1249 | } | |
1250 | else | |
1251 | abort(); /* Need some way to read registers */ | |
1252 | } | |
1253 | ||
a706069f | 1254 | static void |
1265e2d8 SG |
1255 | monitor_fetch_registers (regno) |
1256 | int regno; | |
51d6a954 | 1257 | { |
2a8b1fab | 1258 | RDEBUG(("MON fetchregs\n")) ; |
45993f61 | 1259 | if (current_monitor->getreg.cmd) |
431b7d5f | 1260 | { |
45993f61 SC |
1261 | if (regno >= 0) |
1262 | { | |
1263 | monitor_fetch_register (regno); | |
1264 | return; | |
1265 | } | |
51d6a954 | 1266 | |
45993f61 SC |
1267 | for (regno = 0; regno < NUM_REGS; regno++) |
1268 | monitor_fetch_register (regno); | |
1269 | } | |
1270 | else { | |
1271 | monitor_dump_regs (); | |
1272 | } | |
51d6a954 RS |
1273 | } |
1274 | ||
431b7d5f SS |
1275 | /* Store register REGNO, or all if REGNO == 0. Return errno value. */ |
1276 | ||
1265e2d8 | 1277 | static void |
51d6a954 RS |
1278 | monitor_store_register (regno) |
1279 | int regno; | |
1280 | { | |
1281 | char *name; | |
69159fad | 1282 | unsigned int val; |
f1ca4cbc | 1283 | |
f7ce02f4 | 1284 | name = current_monitor->regnames[regno]; |
2a8b1fab JM |
1285 | if (!name || (*name == '\0')) |
1286 | { RDEBUG(("MON Cannot store unknown register\n")) | |
1287 | return; | |
1288 | } | |
51d6a954 | 1289 | |
1265e2d8 | 1290 | val = read_register (regno); |
2a8b1fab | 1291 | RDEBUG(("MON storeg %d %08x\n",regno,(unsigned int)val)) |
51d6a954 | 1292 | |
7e9576e0 | 1293 | /* send the register deposit command */ |
1265e2d8 | 1294 | |
8665f3dc MS |
1295 | if (current_monitor->flags & MO_REGISTER_VALUE_FIRST) |
1296 | monitor_printf (current_monitor->setreg.cmd, val, name); | |
7e9576e0 MA |
1297 | else if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
1298 | monitor_printf (current_monitor->setreg.cmd, name); | |
8665f3dc MS |
1299 | else |
1300 | monitor_printf (current_monitor->setreg.cmd, name, val); | |
1265e2d8 | 1301 | |
7e9576e0 | 1302 | if (current_monitor->setreg.term) |
2a8b1fab | 1303 | { RDEBUG(("EXP setreg.term\n")) |
7e9576e0 | 1304 | monitor_expect (current_monitor->setreg.term, NULL, 0); |
7e9576e0 MA |
1305 | if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
1306 | monitor_printf ("%x\r", val); | |
7e9576e0 MA |
1307 | monitor_expect_prompt (NULL, 0); |
1308 | } | |
1309 | else | |
1310 | monitor_expect_prompt (NULL, 0); | |
2a8b1fab JM |
1311 | if (current_monitor->setreg.term_cmd) /* Mode exit required */ |
1312 | { RDEBUG(("EXP setreg_termcmd\n")) ; | |
1313 | monitor_printf("%s",current_monitor->setreg.term_cmd) ; | |
1314 | monitor_expect_prompt(NULL,0) ; | |
1315 | } | |
1316 | } /* monitor_store_register */ | |
1265e2d8 SG |
1317 | |
1318 | /* Store the remote registers. */ | |
1319 | ||
a706069f | 1320 | static void |
1265e2d8 SG |
1321 | monitor_store_registers (regno) |
1322 | int regno; | |
1323 | { | |
1324 | if (regno >= 0) | |
431b7d5f | 1325 | { |
1265e2d8 SG |
1326 | monitor_store_register (regno); |
1327 | return; | |
51d6a954 | 1328 | } |
431b7d5f | 1329 | |
1265e2d8 SG |
1330 | for (regno = 0; regno < NUM_REGS; regno++) |
1331 | monitor_store_register (regno); | |
51d6a954 RS |
1332 | } |
1333 | ||
1334 | /* Get ready to modify the registers array. On machines which store | |
1335 | individual registers, this doesn't need to do anything. On machines | |
1336 | which store all the registers in one fell swoop, this makes sure | |
1337 | that registers contains all the registers from the program being | |
1338 | debugged. */ | |
1339 | ||
a706069f | 1340 | static void |
51d6a954 RS |
1341 | monitor_prepare_to_store () |
1342 | { | |
1343 | /* Do nothing, since we can store individual regs */ | |
1344 | } | |
1345 | ||
a706069f SG |
1346 | static void |
1347 | monitor_files_info (ops) | |
1348 | struct target_ops *ops; | |
51d6a954 | 1349 | { |
1265e2d8 | 1350 | printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baud_rate); |
51d6a954 RS |
1351 | } |
1352 | ||
1265e2d8 SG |
1353 | static int |
1354 | monitor_write_memory (memaddr, myaddr, len) | |
51d6a954 | 1355 | CORE_ADDR memaddr; |
2b576293 | 1356 | char *myaddr; |
51d6a954 RS |
1357 | int len; |
1358 | { | |
2a8b1fab | 1359 | unsigned int val, hostval ; |
a706069f SG |
1360 | char *cmd; |
1361 | int i; | |
1b552670 | 1362 | |
2a8b1fab JM |
1363 | RDEBUG(("MON write %d %08x\n",len,(unsigned long)memaddr)) |
1364 | ||
7e9576e0 MA |
1365 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
1366 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
1367 | ||
a706069f | 1368 | /* Use memory fill command for leading 0 bytes. */ |
1b552670 | 1369 | |
a706069f SG |
1370 | if (current_monitor->fill) |
1371 | { | |
1372 | for (i = 0; i < len; i++) | |
1373 | if (myaddr[i] != 0) | |
1374 | break; | |
1375 | ||
1376 | if (i > 4) /* More than 4 zeros is worth doing */ | |
1377 | { | |
2a8b1fab JM |
1378 | RDEBUG(("MON FILL %d\n",i)) |
1379 | if (current_monitor->flags & MO_FILL_USES_ADDR) | |
1380 | monitor_printf (current_monitor->fill, memaddr, (memaddr + i)-1, 0); | |
1381 | else | |
1382 | monitor_printf (current_monitor->fill, memaddr, i, 0); | |
a706069f | 1383 | |
774e5d7f | 1384 | monitor_expect_prompt (NULL, 0); |
a706069f SG |
1385 | |
1386 | return i; | |
1387 | } | |
1388 | } | |
1389 | ||
8665f3dc MS |
1390 | #if 0 |
1391 | /* Can't actually use long longs if VAL is an int (nice idea, though). */ | |
a706069f SG |
1392 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->setmem.cmdll) |
1393 | { | |
1394 | len = 8; | |
1395 | cmd = current_monitor->setmem.cmdll; | |
1396 | } | |
8665f3dc MS |
1397 | else |
1398 | #endif | |
1399 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->setmem.cmdl) | |
a706069f SG |
1400 | { |
1401 | len = 4; | |
1402 | cmd = current_monitor->setmem.cmdl; | |
1403 | } | |
1404 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->setmem.cmdw) | |
1405 | { | |
1406 | len = 2; | |
1407 | cmd = current_monitor->setmem.cmdw; | |
1408 | } | |
1409 | else | |
1410 | { | |
1411 | len = 1; | |
1412 | cmd = current_monitor->setmem.cmdb; | |
1413 | } | |
1414 | ||
1415 | val = extract_unsigned_integer (myaddr, len); | |
2a8b1fab JM |
1416 | |
1417 | if (len == 4) | |
1418 | { hostval = * (unsigned int *) myaddr ; | |
1419 | RDEBUG(("Hostval(%08x) val(%08x)\n",hostval,val)) ; | |
1420 | } | |
1421 | ||
a706069f | 1422 | |
012be3ce DP |
1423 | if (current_monitor->flags & MO_NO_ECHO_ON_SETMEM) |
1424 | monitor_printf_noecho (cmd, memaddr, val); | |
7e9576e0 MA |
1425 | else if (current_monitor->flags & MO_SETMEM_INTERACTIVE) |
1426 | { | |
1427 | ||
1428 | monitor_printf_noecho (cmd, memaddr); | |
1429 | ||
1430 | if (current_monitor->setmem.term) | |
2a8b1fab | 1431 | { RDEBUG(("EXP setmem.term")) ; |
7e9576e0 | 1432 | monitor_expect (current_monitor->setmem.term, NULL, 0); |
7e9576e0 | 1433 | monitor_printf ("%x\r", val); |
2a8b1fab JM |
1434 | } |
1435 | if (current_monitor->setmem.term_cmd) | |
1436 | { /* Emit this to get out of the memory editing state */ | |
1437 | monitor_printf("%s",current_monitor->setmem.term_cmd) ; | |
1438 | /* Drop through to expecting a prompt */ | |
7e9576e0 MA |
1439 | } |
1440 | } | |
012be3ce DP |
1441 | else |
1442 | monitor_printf (cmd, memaddr, val); | |
1265e2d8 | 1443 | |
774e5d7f | 1444 | monitor_expect_prompt (NULL, 0); |
1265e2d8 | 1445 | |
a706069f | 1446 | return len; |
51d6a954 RS |
1447 | } |
1448 | ||
2a8b1fab | 1449 | |
1c3cd1b0 AC |
1450 | static int |
1451 | monitor_write_even_block(memaddr,myaddr,len) | |
2a8b1fab JM |
1452 | CORE_ADDR memaddr ; |
1453 | char * myaddr ; | |
1454 | int len ; | |
1455 | { | |
1456 | unsigned int val ; | |
1457 | int written = 0 ;; | |
1458 | /* Enter the sub mode */ | |
1459 | monitor_printf(current_monitor->setmem.cmdl,memaddr) ; | |
1460 | monitor_expect_prompt(NULL,0) ; | |
1461 | ||
1462 | while (len) | |
1463 | { | |
1464 | val = extract_unsigned_integer(myaddr,4) ; /* REALLY */ | |
1465 | monitor_printf("%x\r",val) ; | |
1466 | myaddr += 4 ; | |
1467 | memaddr += 4 ; | |
1468 | written += 4 ; | |
1469 | RDEBUG((" @ %08x\n",memaddr)) | |
1470 | /* If we wanted to, here we could validate the address */ | |
1471 | monitor_expect_prompt(NULL,0) ; | |
1472 | } | |
1473 | /* Now exit the sub mode */ | |
1474 | monitor_printf (current_monitor->getreg.term_cmd); | |
1475 | monitor_expect_prompt(NULL,0) ; | |
1476 | return written ; | |
1477 | } | |
1478 | ||
1479 | ||
1480 | static int monitor_write_memory_bytes(memaddr,myaddr,len) | |
1481 | CORE_ADDR memaddr ; | |
1482 | char * myaddr ; | |
1483 | int len ; | |
1484 | { | |
1485 | unsigned char val ; | |
1486 | int written = 0 ; | |
1487 | if (len == 0) return 0 ; | |
1488 | /* Enter the sub mode */ | |
1489 | monitor_printf(current_monitor->setmem.cmdb,memaddr) ; | |
1490 | monitor_expect_prompt(NULL,0) ; | |
1491 | while (len) | |
1492 | { | |
1493 | val = *myaddr ; | |
1494 | monitor_printf("%x\r",val) ; | |
1495 | myaddr++ ; | |
1496 | memaddr++ ; | |
1497 | written++ ; | |
1498 | /* If we wanted to, here we could validate the address */ | |
1499 | monitor_expect_prompt(NULL,0) ; | |
1500 | len-- ; | |
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 | ||
1c3cd1b0 AC |
1509 | static void |
1510 | longlongendswap (unsigned char * a) | |
2a8b1fab JM |
1511 | { |
1512 | int i,j ; | |
1513 | unsigned char x ; | |
1514 | i = 0 ; j = 7 ; | |
1515 | while (i < 4) | |
1516 | { x = *(a+i) ; | |
1517 | *(a+i) = *(a+j) ; | |
1518 | *(a+j) = x ; | |
1519 | i++ , j-- ; | |
1520 | } | |
1521 | } | |
1522 | /* Format 32 chars of long long value, advance the pointer */ | |
1523 | static char * hexlate = "0123456789abcdef" ; | |
1524 | static char * longlong_hexchars(unsigned long long value, | |
1525 | char * outbuff ) | |
1526 | { | |
1527 | if (value == 0) { *outbuff++ = '0' ; return outbuff ; } | |
1528 | else | |
1529 | { static unsigned char disbuf[8] ; /* disassembly buffer */ | |
1530 | unsigned char * scan , * limit ; /* loop controls */ | |
1531 | unsigned char c , nib ; | |
1532 | int leadzero = 1 ; | |
1533 | scan = disbuf ; limit = scan + 8 ; | |
1534 | { unsigned long long * dp ; | |
1535 | dp = (unsigned long long *) scan ; | |
1536 | *dp = value ; | |
1537 | } | |
1538 | longlongendswap(disbuf) ; /* FIXME: ONly on big endian hosts */ | |
1539 | while (scan < limit) | |
1540 | { c = *scan++ ; /* a byte of our long long value */ | |
1541 | if (leadzero) | |
1542 | if (c == 0) continue ; | |
1543 | else leadzero = 0 ; /* henceforth we print even zeroes */ | |
1544 | nib = c >> 4 ; /* high nibble bits */ | |
1545 | *outbuff++ = hexlate[nib] ; | |
1546 | nib = c & 0x0f ; /* low nibble bits */ | |
1547 | *outbuff++ = hexlate[nib] ; | |
1548 | } | |
1549 | return outbuff ; | |
1550 | } | |
1551 | } /* longlong_hexchars */ | |
1552 | ||
1553 | ||
1554 | ||
1555 | /* I am only going to call this when writing virtual byte streams. | |
1556 | Which possably entails endian conversions | |
1557 | */ | |
1558 | static int monitor_write_memory_longlongs(memaddr,myaddr,len) | |
1559 | CORE_ADDR memaddr ; | |
1560 | char * myaddr ; | |
1561 | int len ; | |
1562 | { | |
1563 | static char hexstage[20] ; /* At least 16 digits required, plus null */ | |
1564 | char * endstring ; | |
1565 | long long * llptr ; | |
1566 | long long value ; | |
1567 | int written = 0 ; | |
1568 | llptr = (unsigned long long *) myaddr ; | |
1569 | if (len == 0 ) return 0 ; | |
1570 | monitor_printf(current_monitor->setmem.cmdll,memaddr) ; | |
1571 | monitor_expect_prompt(NULL,0) ; | |
1572 | while (len >= 8 ) | |
1573 | { | |
1574 | value = *llptr ; | |
1575 | endstring = longlong_hexchars(*llptr,hexstage) ; | |
1576 | *endstring = '\0' ; /* NUll terminate for printf */ | |
1577 | monitor_printf("%s\r",hexstage) ; | |
1578 | llptr++ ; | |
1579 | memaddr += 8 ; | |
1580 | written += 8 ; | |
1581 | /* If we wanted to, here we could validate the address */ | |
1582 | monitor_expect_prompt(NULL,0) ; | |
1583 | len -= 8 ; | |
1584 | } | |
1585 | /* Now exit the sub mode */ | |
1586 | monitor_printf (current_monitor->getreg.term_cmd); | |
1587 | monitor_expect_prompt(NULL,0) ; | |
1588 | return written ; | |
1589 | } /* */ | |
1590 | ||
1591 | ||
1592 | ||
1593 | /* ----- MONITOR_WRITE_MEMORY_BLOCK ---------------------------- */ | |
1594 | /* This is for the large blocks of memory which may occur in downloading. | |
1595 | And for monitors which use interactive entry, | |
1596 | And for monitors which do not have other downloading methods. | |
1597 | Without this, we will end up calling monitor_write_memory many times | |
1598 | and do the entry and exit of the sub mode many times | |
1599 | This currently assumes... | |
1600 | MO_SETMEM_INTERACTIVE | |
1601 | ! MO_NO_ECHO_ON_SETMEM | |
1602 | To use this, the you have to patch the monitor_cmds block with | |
1603 | this function. Otherwise, its not tuned up for use by all | |
1604 | monitor variations. | |
1605 | */ | |
1606 | ||
1607 | static int monitor_write_memory_block(memaddr,myaddr,len) | |
1608 | CORE_ADDR memaddr ; | |
1609 | char * myaddr ; | |
1610 | int len ; | |
1611 | { | |
1612 | int written ; | |
1613 | written = 0 ; | |
1614 | /* FIXME: This would be a good place to put the zero test */ | |
1615 | #if 1 | |
1616 | if ((len > 8) && (((len & 0x07)) == 0) && current_monitor->setmem.cmdll) | |
1617 | { | |
1618 | return monitor_write_memory_longlongs(memaddr,myaddr,len) ; | |
1619 | } | |
1620 | #endif | |
1621 | #if 0 | |
1622 | if (len > 4) | |
1623 | { | |
1624 | int sublen ; | |
1625 | written = monitor_write_even_block(memaddr,myaddr,len) ; | |
1626 | /* Adjust calling parameters by written amount */ | |
1627 | memaddr += written ; | |
1628 | myaddr += written ; | |
1629 | len -= written ; | |
1630 | } | |
1631 | #endif | |
1632 | written = monitor_write_memory_bytes(memaddr,myaddr,len) ; | |
1633 | return written ; | |
1634 | } | |
1635 | ||
eba08643 C |
1636 | /* This is an alternate form of monitor_read_memory which is used for monitors |
1637 | which can only read a single byte/word/etc. at a time. */ | |
1638 | ||
1639 | static int | |
1640 | monitor_read_memory_single (memaddr, myaddr, len) | |
1641 | CORE_ADDR memaddr; | |
2b576293 | 1642 | char *myaddr; |
eba08643 C |
1643 | int len; |
1644 | { | |
69159fad SS |
1645 | unsigned int val; |
1646 | char membuf[sizeof(int) * 2 + 1]; | |
eba08643 C |
1647 | char *p; |
1648 | char *cmd; | |
1649 | int i; | |
1650 | ||
2a8b1fab | 1651 | RDEBUG(("MON read single\n")) ; |
8665f3dc MS |
1652 | #if 0 |
1653 | /* Can't actually use long longs (nice idea, though). In fact, the | |
1654 | call to strtoul below will fail if it tries to convert a value | |
1655 | that's too big to fit in a long. */ | |
eba08643 C |
1656 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->getmem.cmdll) |
1657 | { | |
1658 | len = 8; | |
1659 | cmd = current_monitor->getmem.cmdll; | |
1660 | } | |
8665f3dc MS |
1661 | else |
1662 | #endif | |
1663 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->getmem.cmdl) | |
eba08643 C |
1664 | { |
1665 | len = 4; | |
1666 | cmd = current_monitor->getmem.cmdl; | |
1667 | } | |
1668 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->getmem.cmdw) | |
1669 | { | |
1670 | len = 2; | |
1671 | cmd = current_monitor->getmem.cmdw; | |
1672 | } | |
1673 | else | |
1674 | { | |
1675 | len = 1; | |
1676 | cmd = current_monitor->getmem.cmdb; | |
1677 | } | |
1678 | ||
15f13cd0 | 1679 | /* Send the examine command. */ |
eba08643 C |
1680 | |
1681 | monitor_printf (cmd, memaddr); | |
1682 | ||
15f13cd0 DE |
1683 | /* If RESP_DELIM is specified, we search for that as a leading |
1684 | delimiter for the memory value. Otherwise, we just start | |
1685 | searching from the start of the buf. */ | |
eba08643 C |
1686 | |
1687 | if (current_monitor->getmem.resp_delim) | |
2a8b1fab JM |
1688 | { RDEBUG(("EXP getmem.resp_delim\n")) ; |
1689 | monitor_expect_regexp (&getmem_resp_delim_pattern, NULL, 0); | |
1690 | } | |
eba08643 | 1691 | |
15f13cd0 DE |
1692 | /* Now, read the appropriate number of hex digits for this loc, |
1693 | skipping spaces. */ | |
eba08643 | 1694 | |
15f13cd0 | 1695 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */ |
012be3ce DP |
1696 | if (current_monitor->flags & MO_HEX_PREFIX) |
1697 | { | |
1698 | int c; | |
15f13cd0 | 1699 | |
012be3ce DP |
1700 | c = readchar (timeout); |
1701 | while (c == ' ') | |
1702 | c = readchar (timeout); | |
1703 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1704 | ; | |
1705 | else | |
20dd6c3b AC |
1706 | monitor_error ("monitor_read_memory_single (0x%x): bad response from monitor: %.*s%c.", |
1707 | memaddr, i, membuf, c); | |
012be3ce | 1708 | } |
eba08643 C |
1709 | for (i = 0; i < len * 2; i++) |
1710 | { | |
1711 | int c; | |
1712 | ||
1713 | while (1) | |
1714 | { | |
1715 | c = readchar (timeout); | |
1716 | if (isxdigit (c)) | |
1717 | break; | |
1718 | if (c == ' ') | |
1719 | continue; | |
1720 | ||
20dd6c3b AC |
1721 | monitor_error ("monitor_read_memory_single (0x%x): bad response from monitor: %.*s%c.", |
1722 | memaddr, i, membuf, c); | |
eba08643 C |
1723 | } |
1724 | ||
1725 | membuf[i] = c; | |
1726 | } | |
1727 | ||
1728 | membuf[i] = '\000'; /* terminate the number */ | |
1729 | ||
1730 | /* If TERM is present, we wait for that to show up. Also, (if TERM is | |
1731 | present), we will send TERM_CMD if that is present. In any case, we collect | |
1732 | all of the output into buf, and then wait for the normal prompt. */ | |
1733 | ||
1734 | if (current_monitor->getmem.term) | |
1735 | { | |
1736 | monitor_expect (current_monitor->getmem.term, NULL, 0); /* get response */ | |
1737 | ||
1738 | if (current_monitor->getmem.term_cmd) | |
1739 | { | |
1740 | monitor_printf (current_monitor->getmem.term_cmd); | |
1741 | monitor_expect_prompt (NULL, 0); | |
1742 | } | |
1743 | } | |
1744 | else | |
1745 | monitor_expect_prompt (NULL, 0); /* get response */ | |
1746 | ||
1747 | p = membuf; | |
1748 | val = strtoul (membuf, &p, 16); | |
1749 | ||
1750 | if (val == 0 && membuf == p) | |
20dd6c3b AC |
1751 | monitor_error ("monitor_read_memory_single (0x%x): bad value from monitor: %s.", |
1752 | memaddr, 0, membuf, 0); | |
eba08643 C |
1753 | |
1754 | /* supply register stores in target byte order, so swap here */ | |
1755 | ||
1756 | store_unsigned_integer (myaddr, len, val); | |
1757 | ||
1758 | return len; | |
1759 | } | |
1760 | ||
7e9576e0 MA |
1761 | /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's |
1762 | memory at MEMADDR. Returns length moved. Currently, we do no more | |
1763 | than 16 bytes at a time. */ | |
431b7d5f | 1764 | |
1265e2d8 SG |
1765 | static int |
1766 | monitor_read_memory (memaddr, myaddr, len) | |
51d6a954 RS |
1767 | CORE_ADDR memaddr; |
1768 | char *myaddr; | |
1769 | int len; | |
1770 | { | |
69159fad | 1771 | unsigned int val; |
774e5d7f | 1772 | char buf[512]; |
1265e2d8 | 1773 | char *p, *p1; |
1265e2d8 | 1774 | int resp_len; |
a706069f | 1775 | int i; |
7e9576e0 MA |
1776 | CORE_ADDR dumpaddr; |
1777 | ||
20dd6c3b AC |
1778 | if (len <= 0) |
1779 | { | |
1780 | RDEBUG (("Zero length call to monitor_read_memory\n")); | |
1781 | return 0; | |
1782 | } | |
1783 | ||
2a8b1fab JM |
1784 | if (remote_debug) printf("MON read block ta(%08x) ha(%08x) %d\n", |
1785 | (unsigned long) memaddr , (unsigned long)myaddr, len); | |
1786 | ||
7e9576e0 MA |
1787 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
1788 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
a706069f | 1789 | |
eba08643 C |
1790 | if (current_monitor->flags & MO_GETMEM_READ_SINGLE) |
1791 | return monitor_read_memory_single (memaddr, myaddr, len); | |
1792 | ||
a706069f | 1793 | len = min (len, 16); |
1265e2d8 | 1794 | |
2a8b1fab JM |
1795 | /* Some dumpers align the first data with the preceeding 16 |
1796 | byte boundary. Some print blanks and start at the | |
1797 | requested boundary. EXACT_DUMPADDR | |
1798 | */ | |
1799 | ||
1800 | dumpaddr = (current_monitor->flags & MO_EXACT_DUMPADDR) | |
1801 | ? memaddr : memaddr & ~ 0x0f ; | |
7e9576e0 | 1802 | |
15f13cd0 | 1803 | /* See if xfer would cross a 16 byte boundary. If so, clip it. */ |
774e5d7f SS |
1804 | if (((memaddr ^ (memaddr + len - 1)) & ~0xf) != 0) |
1805 | len = ((memaddr + len) & ~0xf) - memaddr; | |
1806 | ||
15f13cd0 | 1807 | /* send the memory examine command */ |
1265e2d8 | 1808 | |
774e5d7f SS |
1809 | if (current_monitor->flags & MO_GETMEM_NEEDS_RANGE) |
1810 | monitor_printf (current_monitor->getmem.cmdb, memaddr, memaddr + len - 1); | |
7e9576e0 MA |
1811 | else if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1812 | monitor_printf (current_monitor->getmem.cmdb, dumpaddr); | |
774e5d7f SS |
1813 | else |
1814 | monitor_printf (current_monitor->getmem.cmdb, memaddr, len); | |
1265e2d8 | 1815 | |
15f13cd0 DE |
1816 | /* If TERM is present, we wait for that to show up. Also, (if TERM |
1817 | is present), we will send TERM_CMD if that is present. In any | |
1818 | case, we collect all of the output into buf, and then wait for | |
1819 | the normal prompt. */ | |
1265e2d8 SG |
1820 | |
1821 | if (current_monitor->getmem.term) | |
431b7d5f | 1822 | { |
774e5d7f | 1823 | resp_len = monitor_expect (current_monitor->getmem.term, buf, sizeof buf); /* get response */ |
1265e2d8 SG |
1824 | |
1825 | if (resp_len <= 0) | |
20dd6c3b AC |
1826 | monitor_error ("monitor_read_memory (0x%x): excessive response from monitor: %.*s.", |
1827 | memaddr, resp_len, buf, 0); | |
1265e2d8 SG |
1828 | |
1829 | if (current_monitor->getmem.term_cmd) | |
431b7d5f | 1830 | { |
1265e2d8 SG |
1831 | SERIAL_WRITE (monitor_desc, current_monitor->getmem.term_cmd, |
1832 | strlen (current_monitor->getmem.term_cmd)); | |
774e5d7f | 1833 | monitor_expect_prompt (NULL, 0); |
1b552670 | 1834 | } |
51d6a954 | 1835 | } |
1265e2d8 | 1836 | else |
774e5d7f SS |
1837 | resp_len = monitor_expect_prompt (buf, sizeof buf); /* get response */ |
1838 | ||
1839 | p = buf; | |
1840 | ||
15f13cd0 DE |
1841 | /* If RESP_DELIM is specified, we search for that as a leading |
1842 | delimiter for the values. Otherwise, we just start searching | |
1843 | from the start of the buf. */ | |
1265e2d8 SG |
1844 | |
1845 | if (current_monitor->getmem.resp_delim) | |
1846 | { | |
283dc598 SG |
1847 | int retval, tmp; |
1848 | struct re_registers resp_strings; | |
2a8b1fab | 1849 | RDEBUG(("MON getmem.resp_delim %s\n",current_monitor->getmem.resp_delim)) ; |
283dc598 | 1850 | |
edc452d0 | 1851 | memset (&resp_strings, 0, sizeof (struct re_registers)); |
283dc598 SG |
1852 | tmp = strlen (p); |
1853 | retval = re_search (&getmem_resp_delim_pattern, p, tmp, 0, tmp, | |
1854 | &resp_strings); | |
1855 | ||
1856 | if (retval < 0) | |
20dd6c3b AC |
1857 | monitor_error ("monitor_read_memory (0x%x): bad response from monitor: %.*s.", |
1858 | memaddr, resp_len, buf, 0); | |
283dc598 SG |
1859 | |
1860 | p += resp_strings.end[0]; | |
1861 | #if 0 | |
774e5d7f | 1862 | p = strstr (p, current_monitor->getmem.resp_delim); |
1265e2d8 | 1863 | if (!p) |
20dd6c3b AC |
1864 | monitor_error ("monitor_read_memory (0x%x): bad response from monitor: %.*s.", |
1865 | memaddr, resp_len, buf, 0); | |
1265e2d8 | 1866 | p += strlen (current_monitor->getmem.resp_delim); |
283dc598 | 1867 | #endif |
1265e2d8 | 1868 | } |
2a8b1fab | 1869 | if (remote_debug) printf("MON scanning %d ,%08x '%s'\n",len,p,p) ; |
7e9576e0 MA |
1870 | if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1871 | { | |
2a8b1fab JM |
1872 | char c ; |
1873 | int fetched = 0 ; | |
7e9576e0 | 1874 | i = len; |
2a8b1fab JM |
1875 | c = *p ; |
1876 | ||
1877 | ||
1878 | while (!(c == '\000' || c == '\n' || c == '\r') && i > 0) | |
1879 | { if (isxdigit (c)) | |
1880 | { if ((dumpaddr >= memaddr) && (i > 0)) | |
1881 | { val = fromhex (c) * 16 + fromhex (*(p+1)); | |
7e9576e0 | 1882 | *myaddr++ = val; |
2a8b1fab | 1883 | if (remote_debug) printf("[%02x]",val) ; |
7e9576e0 | 1884 | --i; |
2a8b1fab | 1885 | fetched++ ; |
7e9576e0 MA |
1886 | } |
1887 | ++dumpaddr; | |
1888 | ++p; | |
1889 | } | |
2a8b1fab JM |
1890 | ++p; /* skip a blank or other non hex char */ |
1891 | c = *p ; | |
7e9576e0 | 1892 | } |
2a8b1fab JM |
1893 | if (fetched == 0) error("Failed to read via monitor") ; |
1894 | if (remote_debug) printf("\n") ; | |
1895 | return fetched ; /* Return the number of bytes actually read */ | |
7e9576e0 | 1896 | } |
2a8b1fab | 1897 | RDEBUG(("MON scanning bytes\n")) ; |
7e9576e0 | 1898 | |
a706069f SG |
1899 | for (i = len; i > 0; i--) |
1900 | { | |
774e5d7f SS |
1901 | /* Skip non-hex chars, but bomb on end of string and newlines */ |
1902 | ||
1903 | while (1) | |
1904 | { | |
1905 | if (isxdigit (*p)) | |
1906 | break; | |
7e9576e0 | 1907 | |
774e5d7f | 1908 | if (*p == '\000' || *p == '\n' || *p == '\r') |
20dd6c3b AC |
1909 | monitor_error ("monitor_read_memory (0x%x): badly terminated response from monitor: %.*s", |
1910 | memaddr, resp_len, buf, 0); | |
774e5d7f SS |
1911 | p++; |
1912 | } | |
1913 | ||
a706069f | 1914 | val = strtoul (p, &p1, 16); |
1265e2d8 | 1915 | |
a706069f | 1916 | if (val == 0 && p == p1) |
20dd6c3b AC |
1917 | monitor_error ("monitor_read_memory (0x%x): bad value from monitor: %.*s.", |
1918 | memaddr, resp_len, buf, 0); | |
1265e2d8 | 1919 | |
a706069f | 1920 | *myaddr++ = val; |
774e5d7f SS |
1921 | |
1922 | if (i == 1) | |
1923 | break; | |
1924 | ||
1925 | p = p1; | |
a706069f | 1926 | } |
1265e2d8 | 1927 | |
a706069f | 1928 | return len; |
51d6a954 RS |
1929 | } |
1930 | ||
a706069f | 1931 | static int |
1265e2d8 | 1932 | monitor_xfer_memory (memaddr, myaddr, len, write, target) |
51d6a954 RS |
1933 | CORE_ADDR memaddr; |
1934 | char *myaddr; | |
1935 | int len; | |
1936 | int write; | |
1937 | struct target_ops *target; /* ignored */ | |
1938 | { | |
45993f61 | 1939 | return dcache_xfer_memory (remote_dcache, memaddr, myaddr, len, write); |
51d6a954 RS |
1940 | } |
1941 | ||
a706069f SG |
1942 | static void |
1943 | monitor_kill () | |
51d6a954 RS |
1944 | { |
1945 | return; /* ignore attempts to kill target system */ | |
1946 | } | |
1947 | ||
a706069f SG |
1948 | /* All we actually do is set the PC to the start address of exec_bfd, and start |
1949 | the program at that point. */ | |
1950 | ||
1951 | static void | |
1952 | monitor_create_inferior (exec_file, args, env) | |
1953 | char *exec_file; | |
1954 | char *args; | |
1955 | char **env; | |
1956 | { | |
1957 | if (args && (*args != '\000')) | |
1958 | error ("Args are not supported by the monitor."); | |
1959 | ||
012be3ce | 1960 | first_time = 1; |
a706069f SG |
1961 | clear_proceed_status (); |
1962 | proceed (bfd_get_start_address (exec_bfd), TARGET_SIGNAL_0, 0); | |
1963 | } | |
1964 | ||
51d6a954 RS |
1965 | /* Clean up when a program exits. |
1966 | The program actually lives on in the remote processor's RAM, and may be | |
1967 | run again without a download. Don't leave it full of breakpoint | |
1968 | instructions. */ | |
1969 | ||
a706069f | 1970 | static void |
51d6a954 RS |
1971 | monitor_mourn_inferior () |
1972 | { | |
8f078234 | 1973 | unpush_target (targ_ops); |
51d6a954 RS |
1974 | generic_mourn_inferior (); /* Do all the proper things now */ |
1975 | } | |
1976 | ||
1265e2d8 | 1977 | #define NUM_MONITOR_BREAKPOINTS 8 |
51d6a954 | 1978 | |
1265e2d8 | 1979 | static CORE_ADDR breakaddr[NUM_MONITOR_BREAKPOINTS] = {0}; |
51d6a954 | 1980 | |
431b7d5f SS |
1981 | /* Tell the monitor to add a breakpoint. */ |
1982 | ||
a706069f | 1983 | static int |
51d6a954 RS |
1984 | monitor_insert_breakpoint (addr, shadow) |
1985 | CORE_ADDR addr; | |
1986 | char *shadow; | |
1987 | { | |
1988 | int i; | |
7e9576e0 MA |
1989 | unsigned char *bp; |
1990 | int bplen; | |
1991 | ||
2a8b1fab | 1992 | RDEBUG(("MON inst bkpt %08x\n",addr)) |
7e9576e0 MA |
1993 | if (current_monitor->set_break == NULL) |
1994 | error ("No set_break defined for this monitor"); | |
1995 | ||
1996 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1997 | addr = ADDR_BITS_REMOVE (addr); | |
1998 | ||
1999 | /* Determine appropriate breakpoint size for this address. */ | |
2000 | bp = memory_breakpoint_from_pc (&addr, &bplen); | |
51d6a954 | 2001 | |
1265e2d8 | 2002 | for (i = 0; i < NUM_MONITOR_BREAKPOINTS; i++) |
431b7d5f SS |
2003 | { |
2004 | if (breakaddr[i] == 0) | |
2005 | { | |
2006 | breakaddr[i] = addr; | |
7e9576e0 | 2007 | monitor_read_memory (addr, shadow, bplen); |
f7ce02f4 | 2008 | monitor_printf (current_monitor->set_break, addr); |
774e5d7f | 2009 | monitor_expect_prompt (NULL, 0); |
431b7d5f SS |
2010 | return 0; |
2011 | } | |
f1ca4cbc | 2012 | } |
f1ca4cbc | 2013 | |
1265e2d8 | 2014 | error ("Too many breakpoints (> %d) for monitor.", NUM_MONITOR_BREAKPOINTS); |
51d6a954 RS |
2015 | } |
2016 | ||
431b7d5f SS |
2017 | /* Tell the monitor to remove a breakpoint. */ |
2018 | ||
a706069f | 2019 | static int |
51d6a954 RS |
2020 | monitor_remove_breakpoint (addr, shadow) |
2021 | CORE_ADDR addr; | |
2022 | char *shadow; | |
2023 | { | |
2024 | int i; | |
2025 | ||
2a8b1fab | 2026 | RDEBUG(("MON rmbkpt %08x\n",addr)) |
7e9576e0 MA |
2027 | if (current_monitor->clr_break == NULL) |
2028 | error ("No clr_break defined for this monitor"); | |
2029 | ||
2030 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2031 | addr = ADDR_BITS_REMOVE (addr); | |
2032 | ||
1265e2d8 | 2033 | for (i = 0; i < NUM_MONITOR_BREAKPOINTS; i++) |
431b7d5f SS |
2034 | { |
2035 | if (breakaddr[i] == addr) | |
2036 | { | |
2037 | breakaddr[i] = 0; | |
2038 | /* some monitors remove breakpoints based on the address */ | |
7e9576e0 | 2039 | if (current_monitor->flags & MO_CLR_BREAK_USES_ADDR) |
f7ce02f4 | 2040 | monitor_printf (current_monitor->clr_break, addr); |
7e9576e0 MA |
2041 | else if (current_monitor->flags & MO_CLR_BREAK_1_BASED) |
2042 | monitor_printf (current_monitor->clr_break, i + 1); | |
431b7d5f | 2043 | else |
f7ce02f4 | 2044 | monitor_printf (current_monitor->clr_break, i); |
774e5d7f | 2045 | monitor_expect_prompt (NULL, 0); |
431b7d5f SS |
2046 | return 0; |
2047 | } | |
7804e5bc | 2048 | } |
4ef1f467 DT |
2049 | fprintf_unfiltered (gdb_stderr, |
2050 | "Can't find breakpoint associated with 0x%x\n", addr); | |
51d6a954 RS |
2051 | return 1; |
2052 | } | |
2053 | ||
f7ce02f4 DP |
2054 | /* monitor_wait_srec_ack -- wait for the target to send an acknowledgement for |
2055 | an S-record. Return non-zero if the ACK is received properly. */ | |
2056 | ||
2057 | static int | |
2058 | monitor_wait_srec_ack () | |
2059 | { | |
7e9576e0 MA |
2060 | int i, ch; |
2061 | ||
2062 | if (current_monitor->flags & MO_SREC_ACK_PLUS) | |
2063 | { | |
2064 | return (readchar (timeout) == '+'); | |
2065 | } | |
2066 | else if (current_monitor->flags & MO_SREC_ACK_ROTATE) | |
2067 | { | |
2068 | /* Eat two backspaces, a "rotating" char (|/-\), and a space. */ | |
2069 | if ((ch = readchar (1)) < 0) | |
2070 | return 0; | |
2071 | if ((ch = readchar (1)) < 0) | |
2072 | return 0; | |
2073 | if ((ch = readchar (1)) < 0) | |
2074 | return 0; | |
2075 | if ((ch = readchar (1)) < 0) | |
2076 | return 0; | |
2077 | } | |
2078 | return 1; | |
f7ce02f4 DP |
2079 | } |
2080 | ||
774e5d7f | 2081 | /* monitor_load -- download a file. */ |
431b7d5f | 2082 | |
a706069f SG |
2083 | static void |
2084 | monitor_load (file, from_tty) | |
21ed3dcd | 2085 | char *file; |
a706069f | 2086 | int from_tty; |
21ed3dcd | 2087 | { |
45993f61 | 2088 | dcache_flush (remote_dcache); |
2a8b1fab | 2089 | RDEBUG(("MON load\n")) |
45993f61 | 2090 | |
774e5d7f SS |
2091 | if (current_monitor->load_routine) |
2092 | current_monitor->load_routine (monitor_desc, file, hashmark); | |
2093 | else | |
b9ab37f0 | 2094 | { /* The default is ascii S-records */ |
7e9576e0 MA |
2095 | int n; |
2096 | unsigned long load_offset; | |
2097 | char buf[128]; | |
2098 | ||
2099 | /* enable user to specify address for downloading as 2nd arg to load */ | |
2100 | n = sscanf (file, "%s 0x%lx", buf, &load_offset); | |
2101 | if (n > 1) | |
2102 | file = buf; | |
2103 | else | |
2104 | load_offset = 0; | |
2105 | ||
f7ce02f4 | 2106 | monitor_printf (current_monitor->load); |
b9ab37f0 MM |
2107 | if (current_monitor->loadresp) |
2108 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
2109 | ||
7e9576e0 MA |
2110 | load_srec (monitor_desc, file, (bfd_vma) load_offset, |
2111 | 32, SREC_ALL, hashmark, | |
f7ce02f4 DP |
2112 | current_monitor->flags & MO_SREC_ACK ? |
2113 | monitor_wait_srec_ack : NULL); | |
b9ab37f0 MM |
2114 | |
2115 | monitor_expect_prompt (NULL, 0); | |
2116 | } | |
21ed3dcd | 2117 | |
a706069f | 2118 | /* Finally, make the PC point at the start address */ |
431b7d5f | 2119 | |
45993f61 SC |
2120 | if (exec_bfd) |
2121 | write_pc (bfd_get_start_address (exec_bfd)); | |
431b7d5f | 2122 | |
a706069f | 2123 | inferior_pid = 0; /* No process now */ |
51d6a954 | 2124 | |
a706069f SG |
2125 | /* This is necessary because many things were based on the PC at the time that |
2126 | we attached to the monitor, which is no longer valid now that we have loaded | |
2127 | new code (and just changed the PC). Another way to do this might be to call | |
2128 | normal_stop, except that the stack may not be valid, and things would get | |
2129 | horribly confused... */ | |
51d6a954 | 2130 | |
a706069f SG |
2131 | clear_symtab_users (); |
2132 | } | |
2133 | ||
2134 | static void | |
2135 | monitor_stop () | |
2136 | { | |
2a8b1fab | 2137 | RDEBUG(("MON stop\n")) ; |
69159fad SS |
2138 | if ((current_monitor->flags & MO_SEND_BREAK_ON_STOP) != 0) |
2139 | SERIAL_SEND_BREAK (monitor_desc); | |
eba08643 C |
2140 | if (current_monitor->stop) |
2141 | monitor_printf_noecho (current_monitor->stop); | |
51d6a954 RS |
2142 | } |
2143 | ||
431b7d5f SS |
2144 | /* Put a command string, in args, out to MONITOR. Output from MONITOR |
2145 | is placed on the users terminal until the prompt is seen. FIXME: We | |
2146 | read the characters ourseleves here cause of a nasty echo. */ | |
2147 | ||
8f078234 | 2148 | static void |
a706069f | 2149 | monitor_command (args, from_tty) |
431b7d5f | 2150 | char *args; |
a706069f | 2151 | int from_tty; |
51d6a954 | 2152 | { |
7804e5bc | 2153 | char *p; |
a706069f SG |
2154 | int resp_len; |
2155 | char buf[1000]; | |
431b7d5f | 2156 | |
51d6a954 | 2157 | if (monitor_desc == NULL) |
431b7d5f | 2158 | error ("monitor target not open."); |
7804e5bc | 2159 | |
f7ce02f4 | 2160 | p = current_monitor->prompt; |
774e5d7f | 2161 | |
431b7d5f SS |
2162 | /* Send the command. Note that if no args were supplied, then we're |
2163 | just sending the monitor a newline, which is sometimes useful. */ | |
2164 | ||
774e5d7f | 2165 | monitor_printf ("%s\r", (args ? args : "")); |
7804e5bc | 2166 | |
774e5d7f | 2167 | resp_len = monitor_expect_prompt (buf, sizeof buf); |
a706069f SG |
2168 | |
2169 | fputs_unfiltered (buf, gdb_stdout); /* Output the response */ | |
51d6a954 RS |
2170 | } |
2171 | ||
1b552670 | 2172 | /* Convert hex digit A to a number. */ |
431b7d5f | 2173 | |
7e9576e0 | 2174 | #if 0 |
1b552670 RS |
2175 | static int |
2176 | from_hex (a) | |
2177 | int a; | |
2178 | { | |
1b552670 RS |
2179 | if (a >= '0' && a <= '9') |
2180 | return a - '0'; | |
2181 | if (a >= 'a' && a <= 'f') | |
2182 | return a - 'a' + 10; | |
2183 | if (a >= 'A' && a <= 'F') | |
2184 | return a - 'A' + 10; | |
1b552670 | 2185 | |
1265e2d8 | 2186 | error ("Reply contains invalid hex digit 0x%x", a); |
1b552670 | 2187 | } |
7e9576e0 MA |
2188 | #endif |
2189 | ||
2190 | char * | |
2191 | monitor_get_dev_name () | |
2192 | { | |
2193 | return dev_name; | |
2194 | } | |
1b552670 | 2195 | |
c8623080 AC |
2196 | static struct target_ops monitor_ops ; |
2197 | ||
2198 | static void init_base_monitor_ops(void) | |
774e5d7f | 2199 | { |
c8623080 AC |
2200 | monitor_ops.to_shortname = NULL; |
2201 | monitor_ops.to_longname = NULL; | |
2202 | monitor_ops.to_doc = NULL; | |
2203 | monitor_ops.to_open = NULL; | |
2204 | monitor_ops.to_close = monitor_close; | |
4ef1f467 DT |
2205 | monitor_ops.to_attach = NULL; |
2206 | monitor_ops.to_post_attach = NULL; | |
2207 | monitor_ops.to_require_attach = NULL; | |
c8623080 | 2208 | monitor_ops.to_detach = monitor_detach; |
4ef1f467 | 2209 | monitor_ops.to_require_detach = NULL; |
c8623080 | 2210 | monitor_ops.to_resume = monitor_resume; |
4ef1f467 DT |
2211 | monitor_ops.to_wait = monitor_wait; |
2212 | monitor_ops.to_post_wait = NULL; | |
c8623080 AC |
2213 | monitor_ops.to_fetch_registers = monitor_fetch_registers; |
2214 | monitor_ops.to_store_registers = monitor_store_registers; | |
2215 | monitor_ops.to_prepare_to_store = monitor_prepare_to_store; | |
2216 | monitor_ops.to_xfer_memory = monitor_xfer_memory; | |
2217 | monitor_ops.to_files_info = monitor_files_info; | |
2218 | monitor_ops.to_insert_breakpoint = monitor_insert_breakpoint; | |
2219 | monitor_ops.to_remove_breakpoint = monitor_remove_breakpoint; | |
2220 | monitor_ops.to_terminal_init = 0; | |
2221 | monitor_ops.to_terminal_inferior = 0; | |
2222 | monitor_ops.to_terminal_ours_for_output = 0; | |
2223 | monitor_ops.to_terminal_ours = 0; | |
2224 | monitor_ops.to_terminal_info = 0; | |
2225 | monitor_ops.to_kill = monitor_kill; | |
2226 | monitor_ops.to_load = monitor_load; | |
2227 | monitor_ops.to_lookup_symbol = 0; | |
2228 | monitor_ops.to_create_inferior = monitor_create_inferior; | |
4ef1f467 DT |
2229 | monitor_ops.to_post_startup_inferior = NULL; |
2230 | monitor_ops.to_acknowledge_created_inferior = NULL; | |
2231 | monitor_ops.to_clone_and_follow_inferior = NULL; | |
2232 | monitor_ops.to_post_follow_inferior_by_clone = NULL; | |
2233 | monitor_ops.to_insert_fork_catchpoint = NULL; | |
2234 | monitor_ops.to_remove_fork_catchpoint = NULL; | |
2235 | monitor_ops.to_insert_vfork_catchpoint = NULL; | |
2236 | monitor_ops.to_remove_vfork_catchpoint = NULL; | |
2237 | monitor_ops.to_has_forked = NULL; | |
2238 | monitor_ops.to_has_vforked = NULL; | |
2239 | monitor_ops.to_can_follow_vfork_prior_to_exec = NULL; | |
2240 | monitor_ops.to_post_follow_vfork = NULL; | |
2241 | monitor_ops.to_insert_exec_catchpoint = NULL; | |
2242 | monitor_ops.to_remove_exec_catchpoint = NULL; | |
2243 | monitor_ops.to_has_execd = NULL; | |
2244 | monitor_ops.to_reported_exec_events_per_exec_call = NULL; | |
2245 | monitor_ops.to_has_exited = NULL; | |
c8623080 AC |
2246 | monitor_ops.to_mourn_inferior = monitor_mourn_inferior; |
2247 | monitor_ops.to_can_run = 0; | |
2248 | monitor_ops.to_notice_signals = 0; | |
2249 | monitor_ops.to_thread_alive = 0; | |
4ef1f467 DT |
2250 | monitor_ops.to_stop = monitor_stop; |
2251 | monitor_ops.to_pid_to_exec_file = NULL; | |
2252 | monitor_ops.to_core_file_to_sym_file = NULL; | |
c8623080 AC |
2253 | monitor_ops.to_stratum = process_stratum; |
2254 | monitor_ops.DONT_USE = 0; | |
2255 | monitor_ops.to_has_all_memory = 1; | |
2256 | monitor_ops.to_has_memory = 1; | |
2257 | monitor_ops.to_has_stack = 1; | |
2258 | monitor_ops.to_has_registers = 1; | |
2259 | monitor_ops.to_has_execution = 1; | |
2260 | monitor_ops.to_sections = 0; | |
2261 | monitor_ops.to_sections_end = 0; | |
2262 | monitor_ops.to_magic = OPS_MAGIC ; | |
2263 | } /* init_monitor_ops */ | |
a706069f SG |
2264 | |
2265 | /* Init the target_ops structure pointed at by OPS */ | |
2266 | ||
2267 | void | |
2268 | init_monitor_ops (ops) | |
2269 | struct target_ops *ops; | |
2270 | { | |
9d4010dc JM |
2271 | if (monitor_ops.to_magic != OPS_MAGIC) |
2272 | init_base_monitor_ops (); | |
2273 | ||
a706069f SG |
2274 | memcpy (ops, &monitor_ops, sizeof monitor_ops); |
2275 | } | |
2276 | ||
431b7d5f SS |
2277 | /* Define additional commands that are usually only used by monitors. */ |
2278 | ||
51d6a954 RS |
2279 | void |
2280 | _initialize_remote_monitors () | |
2281 | { | |
c8623080 | 2282 | init_base_monitor_ops() ; |
51d6a954 RS |
2283 | add_show_from_set (add_set_cmd ("hash", no_class, var_boolean, |
2284 | (char *)&hashmark, | |
2285 | "Set display of activity while downloading a file.\n\ | |
1265e2d8 | 2286 | When enabled, a hashmark \'#\' is displayed.", |
51d6a954 RS |
2287 | &setlist), |
2288 | &showlist); | |
2289 | ||
51d6a954 RS |
2290 | add_com ("monitor", class_obscure, monitor_command, |
2291 | "Send a command to the debug monitor."); | |
2292 | } | |
4ef1f467 DT |
2293 | |
2294 |