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 |
20dd6c3b AC |
330 | #if EXTRA_RDEBUG |
331 | if (remote_debug) | |
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 | } | |
337 | #endif | |
2a8b1fab | 338 | |
1a31a33a | 339 | monitor_write (sndbuf, len); |
eba08643 C |
340 | } |
341 | ||
342 | /* monitor_printf -- Send data to monitor and check the echo. Works just like | |
343 | printf. */ | |
431b7d5f | 344 | |
774e5d7f | 345 | void |
4a430794 | 346 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
347 | monitor_printf (char *pattern, ...) |
348 | #else | |
774e5d7f | 349 | monitor_printf (va_alist) |
51d6a954 | 350 | va_dcl |
85c613aa | 351 | #endif |
51d6a954 RS |
352 | { |
353 | va_list args; | |
eba08643 | 354 | char sndbuf[2000]; |
774e5d7f | 355 | int len; |
51d6a954 | 356 | |
4a430794 | 357 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
358 | va_start (args, pattern); |
359 | #else | |
360 | char *pattern; | |
431b7d5f | 361 | va_start (args); |
431b7d5f | 362 | pattern = va_arg (args, char *); |
85c613aa | 363 | #endif |
51d6a954 | 364 | |
2a8b1fab | 365 | monitor_vsprintf (sndbuf, pattern, args); |
51d6a954 | 366 | |
20dd6c3b AC |
367 | len = strlen (sndbuf); |
368 | if (len + 1 > sizeof sndbuf) | |
369 | abort (); | |
370 | ||
2a8b1fab | 371 | #if 0 |
1265e2d8 | 372 | if (remote_debug > 0) |
7e9576e0 | 373 | puts_debug ("sent -->", sndbuf, "<--"); |
2a8b1fab | 374 | #endif |
20dd6c3b AC |
375 | #if EXTRA_RDEBUG |
376 | if (remote_debug) | |
377 | { | |
378 | char *safe_string = (char *) alloca ((len * 4) + 1); | |
379 | monitor_printable_string (safe_string, sndbuf); | |
380 | printf ("sent[%s]\n", safe_string); | |
381 | } | |
382 | #endif | |
431b7d5f | 383 | |
1a31a33a | 384 | monitor_write (sndbuf, len); |
eba08643 | 385 | |
69159fad SS |
386 | /* We used to expect that the next immediate output was the characters we |
387 | just output, but sometimes some extra junk appeared before the characters | |
388 | we expected, like an extra prompt, or a portmaster sending telnet negotiations. | |
389 | So, just start searching for what we sent, and skip anything unknown. */ | |
2a8b1fab | 390 | RDEBUG(("ExpectEcho\n")) |
69159fad | 391 | monitor_expect (sndbuf, (char *)0, 0); |
e6fa5bd6 RS |
392 | } |
393 | ||
1a31a33a MA |
394 | |
395 | /* Write characters to the remote system. */ | |
396 | ||
397 | void | |
398 | monitor_write (buf, buflen) | |
399 | char *buf; | |
400 | int buflen; | |
401 | { | |
402 | if (SERIAL_WRITE(monitor_desc, buf, buflen)) | |
403 | fprintf_unfiltered (stderr, "SERIAL_WRITE failed: %s\n", safe_strerror (errno)); | |
404 | } | |
405 | ||
406 | ||
407 | /* Read a binary character from the remote system, doing all the fancy | |
408 | timeout stuff, but without interpreting the character in any way, | |
409 | and without printing remote debug information. */ | |
410 | ||
411 | int | |
412 | monitor_readchar () | |
413 | { | |
414 | int c; | |
415 | int looping; | |
416 | ||
417 | do | |
418 | { | |
419 | looping = 0; | |
420 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
421 | ||
422 | if (c >= 0) | |
423 | c &= 0xff; /* don't lose bit 7 */ | |
424 | } | |
425 | while (looping); | |
426 | ||
427 | if (c >= 0) | |
428 | return c; | |
429 | ||
430 | if (c == SERIAL_TIMEOUT) | |
431 | error ("Timeout reading from remote system."); | |
432 | ||
433 | perror_with_name ("remote-monitor"); | |
434 | } | |
435 | ||
436 | ||
431b7d5f SS |
437 | /* Read a character from the remote system, doing all the fancy |
438 | timeout stuff. */ | |
439 | ||
51d6a954 | 440 | static int |
431b7d5f | 441 | readchar (timeout) |
51d6a954 RS |
442 | int timeout; |
443 | { | |
444 | int c; | |
69159fad SS |
445 | static enum { last_random, last_nl, last_cr, last_crnl } state = last_random; |
446 | int looping; | |
51d6a954 | 447 | |
69159fad SS |
448 | do |
449 | { | |
450 | looping = 0; | |
451 | c = SERIAL_READCHAR (monitor_desc, timeout); | |
51d6a954 | 452 | |
69159fad SS |
453 | if (c >= 0) |
454 | { | |
455 | c &= 0x7f; | |
2a8b1fab JM |
456 | #if 0 |
457 | /* This seems to interfere with proper function of the | |
458 | input stream */ | |
69159fad SS |
459 | if (remote_debug > 0) |
460 | { | |
461 | char buf[2]; | |
462 | buf[0] = c; | |
463 | buf[1] = '\0'; | |
7e9576e0 | 464 | puts_debug ("read -->", buf, "<--"); |
69159fad | 465 | } |
2a8b1fab JM |
466 | |
467 | #endif | |
69159fad SS |
468 | } |
469 | ||
470 | /* Canonicialize \n\r combinations into one \r */ | |
471 | if ((current_monitor->flags & MO_HANDLE_NL) != 0) | |
472 | { | |
473 | if ((c == '\r' && state == last_nl) | |
474 | || (c == '\n' && state == last_cr)) | |
475 | { | |
476 | state = last_crnl; | |
477 | looping = 1; | |
478 | } | |
479 | else if (c == '\r') | |
480 | state = last_cr; | |
481 | else if (c != '\n') | |
482 | state = last_random; | |
483 | else | |
484 | { | |
485 | state = last_nl; | |
486 | c = '\r'; | |
487 | } | |
488 | } | |
489 | } | |
490 | while (looping); | |
51d6a954 RS |
491 | |
492 | if (c >= 0) | |
69159fad | 493 | return c; |
51d6a954 | 494 | |
431b7d5f | 495 | if (c == SERIAL_TIMEOUT) |
2a8b1fab | 496 | #if 0 /* MAINTENANCE_CMDS */ |
1c3cd1b0 | 497 | /* I fail to see how detaching here can be useful */ |
4a430794 SS |
498 | if (in_monitor_wait) /* Watchdog went off */ |
499 | { | |
500 | target_mourn_inferior (); | |
2a8b1fab | 501 | error ("GDB serial timeout has expired. Target detached.\n"); |
4a430794 SS |
502 | } |
503 | else | |
504 | #endif | |
505 | error ("Timeout reading from remote system."); | |
a706069f | 506 | |
431b7d5f | 507 | perror_with_name ("remote-monitor"); |
51d6a954 RS |
508 | } |
509 | ||
1265e2d8 | 510 | /* Scan input from the remote system, until STRING is found. If BUF is non- |
a706069f SG |
511 | zero, then collect input until we have collected either STRING or BUFLEN-1 |
512 | chars. In either case we terminate BUF with a 0. If input overflows BUF | |
513 | because STRING can't be found, return -1, else return number of chars in BUF | |
514 | (minus the terminating NUL). Note that in the non-overflow case, STRING | |
515 | will be at the end of BUF. */ | |
431b7d5f | 516 | |
774e5d7f SS |
517 | int |
518 | monitor_expect (string, buf, buflen) | |
51d6a954 | 519 | char *string; |
1265e2d8 SG |
520 | char *buf; |
521 | int buflen; | |
51d6a954 RS |
522 | { |
523 | char *p = string; | |
1265e2d8 | 524 | int obuflen = buflen; |
51d6a954 | 525 | int c; |
8665f3dc | 526 | extern struct target_ops *targ_ops; |
20dd6c3b AC |
527 | |
528 | #if EXTRA_RDEBUG | |
529 | if (remote_debug) | |
530 | { | |
531 | char *safe_string = (char *) alloca ((strlen (string) * 4) + 1); | |
532 | monitor_printable_string (safe_string, string); | |
533 | printf ("MON Expecting '%s'\n", safe_string); | |
534 | } | |
535 | #endif | |
51d6a954 | 536 | |
51d6a954 | 537 | immediate_quit = 1; |
431b7d5f SS |
538 | while (1) |
539 | { | |
1265e2d8 | 540 | if (buf) |
431b7d5f | 541 | { |
a706069f | 542 | if (buflen < 2) |
431b7d5f | 543 | { |
a706069f | 544 | *buf = '\000'; |
431b7d5f | 545 | immediate_quit = 0; |
1265e2d8 | 546 | return -1; |
431b7d5f | 547 | } |
1265e2d8 SG |
548 | |
549 | c = readchar (timeout); | |
283dc598 SG |
550 | if (c == '\000') |
551 | continue; | |
1265e2d8 SG |
552 | *buf++ = c; |
553 | buflen--; | |
431b7d5f SS |
554 | } |
555 | else | |
1265e2d8 SG |
556 | c = readchar (timeout); |
557 | ||
69159fad SS |
558 | /* Don't expect any ^C sent to be echoed */ |
559 | ||
560 | if (*p == '\003' || c == *p) | |
431b7d5f | 561 | { |
69159fad | 562 | p++; |
1265e2d8 | 563 | if (*p == '\0') |
431b7d5f | 564 | { |
1265e2d8 SG |
565 | immediate_quit = 0; |
566 | ||
a706069f SG |
567 | if (buf) |
568 | { | |
569 | *buf++ = '\000'; | |
570 | return obuflen - buflen; | |
571 | } | |
572 | else | |
573 | return 0; | |
431b7d5f | 574 | } |
1265e2d8 | 575 | } |
8665f3dc MS |
576 | else if ((c == '\021' || c == '\023') && |
577 | (strcmp(targ_ops->to_shortname, "m32r") == 0)) | |
578 | { /* m32r monitor emits random DC1/DC3 chars */ | |
579 | continue; | |
580 | } | |
1265e2d8 SG |
581 | else |
582 | { | |
431b7d5f | 583 | p = string; |
1265e2d8 SG |
584 | if (c == *p) |
585 | p++; | |
431b7d5f | 586 | } |
51d6a954 | 587 | } |
51d6a954 RS |
588 | } |
589 | ||
283dc598 SG |
590 | /* Search for a regexp. */ |
591 | ||
69159fad | 592 | static int |
283dc598 SG |
593 | monitor_expect_regexp (pat, buf, buflen) |
594 | struct re_pattern_buffer *pat; | |
595 | char *buf; | |
596 | int buflen; | |
597 | { | |
598 | char *mybuf; | |
599 | char *p; | |
2a8b1fab | 600 | RDEBUG(("MON Expecting regexp\n")) ; |
283dc598 SG |
601 | if (buf) |
602 | mybuf = buf; | |
603 | else | |
604 | { | |
605 | mybuf = alloca (1024); | |
606 | buflen = 1024; | |
607 | } | |
608 | ||
609 | p = mybuf; | |
610 | while (1) | |
611 | { | |
612 | int retval; | |
613 | ||
614 | if (p - mybuf >= buflen) | |
615 | { /* Buffer about to overflow */ | |
616 | ||
617 | /* On overflow, we copy the upper half of the buffer to the lower half. Not | |
618 | great, but it usually works... */ | |
619 | ||
620 | memcpy (mybuf, mybuf + buflen / 2, buflen / 2); | |
621 | p = mybuf + buflen / 2; | |
622 | } | |
623 | ||
624 | *p++ = readchar (timeout); | |
625 | ||
626 | retval = re_search (pat, mybuf, p - mybuf, 0, p - mybuf, NULL); | |
627 | if (retval >= 0) | |
628 | return 1; | |
629 | } | |
630 | } | |
631 | ||
51d6a954 RS |
632 | /* Keep discarding input until we see the MONITOR prompt. |
633 | ||
634 | The convention for dealing with the prompt is that you | |
635 | o give your command | |
636 | o *then* wait for the prompt. | |
637 | ||
15f13cd0 DE |
638 | Thus the last thing that a procedure does with the serial line will |
639 | be an monitor_expect_prompt(). Exception: monitor_resume does not | |
640 | wait for the prompt, because the terminal is being handed over to | |
641 | the inferior. However, the next thing which happens after that is | |
642 | a monitor_wait which does wait for the prompt. Note that this | |
643 | includes abnormal exit, e.g. error(). This is necessary to prevent | |
644 | getting into states from which we can't recover. */ | |
431b7d5f | 645 | |
774e5d7f SS |
646 | int |
647 | monitor_expect_prompt (buf, buflen) | |
1265e2d8 SG |
648 | char *buf; |
649 | int buflen; | |
51d6a954 | 650 | { |
2a8b1fab | 651 | RDEBUG(("MON Expecting prompt\n")) |
f7ce02f4 | 652 | return monitor_expect (current_monitor->prompt, buf, buflen); |
51d6a954 RS |
653 | } |
654 | ||
431b7d5f SS |
655 | /* Get N 32-bit words from remote, each preceded by a space, and put |
656 | them in registers starting at REGNO. */ | |
657 | ||
7e9576e0 | 658 | #if 0 |
1265e2d8 | 659 | static unsigned long |
51d6a954 RS |
660 | get_hex_word () |
661 | { | |
1265e2d8 | 662 | unsigned long val; |
51d6a954 | 663 | int i; |
1265e2d8 | 664 | int ch; |
51d6a954 | 665 | |
1265e2d8 SG |
666 | do |
667 | ch = readchar (timeout); | |
668 | while (isspace(ch)); | |
cf51c601 | 669 | |
1265e2d8 SG |
670 | val = from_hex (ch); |
671 | ||
672 | for (i = 7; i >= 1; i--) | |
431b7d5f | 673 | { |
1265e2d8 SG |
674 | ch = readchar (timeout); |
675 | if (!isxdigit (ch)) | |
676 | break; | |
677 | val = (val << 4) | from_hex (ch); | |
431b7d5f | 678 | } |
51d6a954 RS |
679 | |
680 | return val; | |
681 | } | |
7e9576e0 | 682 | #endif |
51d6a954 | 683 | |
283dc598 SG |
684 | static void |
685 | compile_pattern (pattern, compiled_pattern, fastmap) | |
686 | char *pattern; | |
687 | struct re_pattern_buffer *compiled_pattern; | |
688 | char *fastmap; | |
689 | { | |
690 | int tmp; | |
c8623080 | 691 | const char *val; |
283dc598 SG |
692 | |
693 | compiled_pattern->fastmap = fastmap; | |
694 | ||
695 | tmp = re_set_syntax (RE_SYNTAX_EMACS); | |
696 | val = re_compile_pattern (pattern, | |
697 | strlen (pattern), | |
698 | compiled_pattern); | |
699 | re_set_syntax (tmp); | |
700 | ||
701 | if (val) | |
702 | error ("compile_pattern: Can't compile pattern string `%s': %s!", pattern, val); | |
703 | ||
704 | if (fastmap) | |
705 | re_compile_fastmap (compiled_pattern); | |
706 | } | |
707 | ||
431b7d5f SS |
708 | /* Open a connection to a remote debugger. NAME is the filename used |
709 | for communication. */ | |
710 | ||
51d6a954 | 711 | void |
1265e2d8 | 712 | monitor_open (args, mon_ops, from_tty) |
51d6a954 | 713 | char *args; |
1265e2d8 | 714 | struct monitor_ops *mon_ops; |
51d6a954 RS |
715 | int from_tty; |
716 | { | |
1265e2d8 | 717 | char *name; |
a706069f SG |
718 | char **p; |
719 | ||
720 | if (mon_ops->magic != MONITOR_OPS_MAGIC) | |
721 | error ("Magic number of monitor_ops struct wrong."); | |
1265e2d8 SG |
722 | |
723 | targ_ops = mon_ops->target; | |
724 | name = targ_ops->to_shortname; | |
51d6a954 | 725 | |
1265e2d8 | 726 | if (!args) |
51d6a954 RS |
727 | error ("Use `target %s DEVICE-NAME' to use a serial port, or \n\ |
728 | `target %s HOST-NAME:PORT-NUMBER' to use a network connection.", name, name); | |
729 | ||
1265e2d8 SG |
730 | target_preopen (from_tty); |
731 | ||
a706069f SG |
732 | /* Setup pattern for register dump */ |
733 | ||
734 | if (mon_ops->register_pattern) | |
283dc598 SG |
735 | compile_pattern (mon_ops->register_pattern, ®ister_pattern, |
736 | register_fastmap); | |
737 | ||
738 | if (mon_ops->getmem.resp_delim) | |
739 | compile_pattern (mon_ops->getmem.resp_delim, &getmem_resp_delim_pattern, | |
740 | getmem_resp_delim_fastmap); | |
a706069f | 741 | |
1265e2d8 SG |
742 | unpush_target (targ_ops); |
743 | ||
744 | if (dev_name) | |
745 | free (dev_name); | |
746 | dev_name = strsave (args); | |
51d6a954 | 747 | |
431b7d5f | 748 | monitor_desc = SERIAL_OPEN (dev_name); |
51d6a954 | 749 | |
1265e2d8 | 750 | if (!monitor_desc) |
431b7d5f SS |
751 | perror_with_name (dev_name); |
752 | ||
753 | if (baud_rate != -1) | |
754 | { | |
755 | if (SERIAL_SETBAUDRATE (monitor_desc, baud_rate)) | |
756 | { | |
757 | SERIAL_CLOSE (monitor_desc); | |
1265e2d8 | 758 | perror_with_name (dev_name); |
431b7d5f | 759 | } |
51d6a954 | 760 | } |
7a1330f7 | 761 | |
431b7d5f | 762 | SERIAL_RAW (monitor_desc); |
51d6a954 | 763 | |
1265e2d8 SG |
764 | SERIAL_FLUSH_INPUT (monitor_desc); |
765 | ||
cf51c601 | 766 | /* some systems only work with 2 stop bits */ |
1265e2d8 SG |
767 | |
768 | SERIAL_SETSTOPBITS (monitor_desc, mon_ops->stopbits); | |
769 | ||
770 | current_monitor = mon_ops; | |
51d6a954 | 771 | |
a706069f SG |
772 | /* See if we can wake up the monitor. First, try sending a stop sequence, |
773 | then send the init strings. Last, remove all breakpoints. */ | |
774 | ||
eba08643 C |
775 | if (current_monitor->stop) |
776 | { | |
777 | monitor_stop (); | |
69159fad SS |
778 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) |
779 | { | |
2a8b1fab JM |
780 | RDEBUG(("EXP Open echo\n")) ; |
781 | monitor_expect_prompt (NULL, 0); | |
69159fad | 782 | } |
eba08643 | 783 | } |
431b7d5f | 784 | |
1265e2d8 | 785 | /* wake up the monitor and see if it's alive */ |
a706069f SG |
786 | for (p = mon_ops->init; *p != NULL; p++) |
787 | { | |
69159fad SS |
788 | /* Some of the characters we send may not be echoed, |
789 | but we hope to get a prompt at the end of it all. */ | |
790 | ||
791 | if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) | |
792 | monitor_printf(*p); | |
793 | else | |
794 | monitor_printf_noecho (*p); | |
774e5d7f | 795 | monitor_expect_prompt (NULL, 0); |
a706069f SG |
796 | } |
797 | ||
eba08643 C |
798 | SERIAL_FLUSH_INPUT (monitor_desc); |
799 | ||
a706069f | 800 | /* Remove all breakpoints */ |
431b7d5f | 801 | |
a706069f SG |
802 | if (mon_ops->clr_all_break) |
803 | { | |
774e5d7f SS |
804 | monitor_printf (mon_ops->clr_all_break); |
805 | monitor_expect_prompt (NULL, 0); | |
a706069f | 806 | } |
1265e2d8 | 807 | |
51d6a954 | 808 | if (from_tty) |
1265e2d8 SG |
809 | printf_unfiltered ("Remote target %s connected to %s\n", name, dev_name); |
810 | ||
811 | push_target (targ_ops); | |
812 | ||
813 | inferior_pid = 42000; /* Make run command think we are busy... */ | |
814 | ||
eba08643 C |
815 | /* Give monitor_wait something to read */ |
816 | ||
817 | monitor_printf (current_monitor->line_term); | |
1265e2d8 | 818 | |
2a8b1fab JM |
819 | if (current_monitor->flags & MO_HAS_BLOCKWRITES) |
820 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory_block); | |
821 | else | |
822 | remote_dcache = dcache_init (monitor_read_memory, monitor_write_memory); | |
1265e2d8 | 823 | start_remote (); |
51d6a954 RS |
824 | } |
825 | ||
431b7d5f SS |
826 | /* Close out all files and local state before this target loses |
827 | control. */ | |
51d6a954 | 828 | |
69159fad | 829 | void |
51d6a954 RS |
830 | monitor_close (quitting) |
831 | int quitting; | |
832 | { | |
1265e2d8 SG |
833 | if (monitor_desc) |
834 | SERIAL_CLOSE (monitor_desc); | |
51d6a954 | 835 | monitor_desc = NULL; |
51d6a954 RS |
836 | } |
837 | ||
431b7d5f SS |
838 | /* Terminate the open connection to the remote debugger. Use this |
839 | when you want to detach and do something else with your gdb. */ | |
840 | ||
a706069f | 841 | static void |
1265e2d8 SG |
842 | monitor_detach (args, from_tty) |
843 | char *args; | |
51d6a954 RS |
844 | int from_tty; |
845 | { | |
431b7d5f | 846 | pop_target (); /* calls monitor_close to do the real work */ |
51d6a954 | 847 | if (from_tty) |
1265e2d8 | 848 | printf_unfiltered ("Ending remote %s debugging\n", target_shortname); |
51d6a954 | 849 | } |
7804e5bc | 850 | |
a706069f SG |
851 | /* Convert VALSTR into the target byte-ordered value of REGNO and store it. */ |
852 | ||
853 | char * | |
854 | monitor_supply_register (regno, valstr) | |
855 | int regno; | |
856 | char *valstr; | |
857 | { | |
69159fad | 858 | unsigned int val; |
a706069f SG |
859 | unsigned char regbuf[MAX_REGISTER_RAW_SIZE]; |
860 | char *p; | |
861 | ||
862 | val = strtoul (valstr, &p, 16); | |
2a8b1fab | 863 | RDEBUG(("Supplying Register %d %s\n",regno,valstr)) ; |
a706069f SG |
864 | |
865 | if (val == 0 && valstr == p) | |
866 | error ("monitor_supply_register (%d): bad value from monitor: %s.", | |
867 | regno, valstr); | |
868 | ||
869 | /* supply register stores in target byte order, so swap here */ | |
870 | ||
871 | store_unsigned_integer (regbuf, REGISTER_RAW_SIZE (regno), val); | |
872 | ||
873 | supply_register (regno, regbuf); | |
874 | ||
875 | return p; | |
876 | } | |
877 | ||
431b7d5f SS |
878 | /* Tell the remote machine to resume. */ |
879 | ||
1c3cd1b0 AC |
880 | void |
881 | flush_monitor_dcache () | |
882 | { | |
883 | dcache_flush (remote_dcache); | |
884 | } | |
2a8b1fab | 885 | |
a706069f | 886 | static void |
51d6a954 RS |
887 | monitor_resume (pid, step, sig) |
888 | int pid, step; | |
889 | enum target_signal sig; | |
890 | { | |
012be3ce | 891 | /* Some monitors require a different command when starting a program */ |
2a8b1fab | 892 | RDEBUG(("MON resume\n")) ; |
012be3ce DP |
893 | if (current_monitor->flags & MO_RUN_FIRST_TIME && first_time == 1) |
894 | { | |
895 | first_time = 0; | |
896 | monitor_printf ("run\r"); | |
897 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) | |
898 | dump_reg_flag = 1; | |
899 | return; | |
900 | } | |
45993f61 | 901 | dcache_flush (remote_dcache); |
431b7d5f | 902 | if (step) |
f7ce02f4 | 903 | monitor_printf (current_monitor->step); |
431b7d5f | 904 | else |
a706069f | 905 | { |
2a8b1fab JM |
906 | if (current_monitor->continue_hook) |
907 | (*current_monitor->continue_hook)() ; | |
908 | else monitor_printf (current_monitor->cont); | |
a706069f SG |
909 | if (current_monitor->flags & MO_NEED_REGDUMP_AFTER_CONT) |
910 | dump_reg_flag = 1; | |
911 | } | |
912 | } | |
913 | ||
69159fad SS |
914 | /* Parse the output of a register dump command. A monitor specific |
915 | regexp is used to extract individual register descriptions of the | |
916 | form REG=VAL. Each description is split up into a name and a value | |
917 | string which are passed down to monitor specific code. */ | |
a706069f | 918 | |
7e9576e0 | 919 | static void |
a706069f SG |
920 | parse_register_dump (buf, len) |
921 | char *buf; | |
922 | int len; | |
923 | { | |
2a8b1fab | 924 | RDEBUG(("MON Parsing register dump\n")) |
a706069f SG |
925 | while (1) |
926 | { | |
927 | int regnamelen, vallen; | |
928 | char *regname, *val; | |
69159fad SS |
929 | /* Element 0 points to start of register name, and element 1 |
930 | points to the start of the register value. */ | |
283dc598 | 931 | struct re_registers register_strings; |
a706069f | 932 | |
edc452d0 JM |
933 | memset (®ister_strings, 0, sizeof (struct re_registers)); |
934 | ||
a706069f SG |
935 | if (re_search (®ister_pattern, buf, len, 0, len, |
936 | ®ister_strings) == -1) | |
937 | break; | |
938 | ||
939 | regnamelen = register_strings.end[1] - register_strings.start[1]; | |
940 | regname = buf + register_strings.start[1]; | |
941 | vallen = register_strings.end[2] - register_strings.start[2]; | |
942 | val = buf + register_strings.start[2]; | |
943 | ||
944 | current_monitor->supply_register (regname, regnamelen, val, vallen); | |
945 | ||
946 | buf += register_strings.end[0]; | |
947 | len -= register_strings.end[0]; | |
948 | } | |
51d6a954 RS |
949 | } |
950 | ||
eba08643 C |
951 | /* Send ^C to target to halt it. Target will respond, and send us a |
952 | packet. */ | |
953 | ||
954 | static void | |
955 | monitor_interrupt (signo) | |
956 | int signo; | |
957 | { | |
958 | /* If this doesn't work, try more severe steps. */ | |
959 | signal (signo, monitor_interrupt_twice); | |
960 | ||
961 | if (remote_debug) | |
962 | printf_unfiltered ("monitor_interrupt called\n"); | |
963 | ||
964 | target_stop (); | |
965 | } | |
966 | ||
967 | /* The user typed ^C twice. */ | |
968 | ||
969 | static void | |
970 | monitor_interrupt_twice (signo) | |
971 | int signo; | |
972 | { | |
973 | signal (signo, ofunc); | |
974 | ||
975 | monitor_interrupt_query (); | |
976 | ||
977 | signal (signo, monitor_interrupt); | |
978 | } | |
979 | ||
980 | /* Ask the user what to do when an interrupt is received. */ | |
981 | ||
982 | static void | |
983 | monitor_interrupt_query () | |
984 | { | |
985 | target_terminal_ours (); | |
986 | ||
987 | if (query ("Interrupted while waiting for the program.\n\ | |
988 | Give up (and stop debugging it)? ")) | |
989 | { | |
990 | target_mourn_inferior (); | |
991 | return_to_top_level (RETURN_QUIT); | |
992 | } | |
993 | ||
994 | target_terminal_inferior (); | |
995 | } | |
996 | ||
997 | static void | |
998 | monitor_wait_cleanup (old_timeout) | |
c8623080 | 999 | void *old_timeout; |
eba08643 | 1000 | { |
c8623080 | 1001 | timeout = *(int*)old_timeout; |
eba08643 | 1002 | signal (SIGINT, ofunc); |
4a430794 | 1003 | in_monitor_wait = 0; |
eba08643 C |
1004 | } |
1005 | ||
2a8b1fab JM |
1006 | |
1007 | ||
1008 | void monitor_wait_filter(char * buf, | |
1009 | int bufmax, | |
1010 | int * ext_resp_len, | |
1011 | struct target_waitstatus * status | |
1012 | ) | |
1013 | { | |
1014 | int resp_len ; | |
1015 | do | |
1016 | { | |
1017 | resp_len = monitor_expect_prompt (buf, bufmax); | |
1018 | * ext_resp_len =resp_len ; | |
1019 | ||
1020 | if (resp_len <= 0) | |
1021 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1022 | } | |
1023 | while (resp_len < 0); | |
1024 | ||
1025 | /* Print any output characters that were preceded by ^O. */ | |
1026 | /* FIXME - This would be great as a user settabgle flag */ | |
1027 | if (remote_debug || | |
1028 | current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
1029 | { | |
1030 | int i; | |
1031 | ||
1032 | for (i = 0; i < resp_len - 1; i++) | |
1033 | if (buf[i] == 0x0f) | |
1034 | putchar_unfiltered (buf[++i]); | |
1035 | } | |
1036 | } | |
1037 | ||
1038 | ||
1039 | ||
431b7d5f SS |
1040 | /* Wait until the remote machine stops, then return, storing status in |
1041 | status just as `wait' would. */ | |
1042 | ||
a706069f | 1043 | static int |
51d6a954 RS |
1044 | monitor_wait (pid, status) |
1045 | int pid; | |
1046 | struct target_waitstatus *status; | |
1047 | { | |
1048 | int old_timeout = timeout; | |
774e5d7f | 1049 | char buf[1024]; |
a706069f | 1050 | int resp_len; |
eba08643 | 1051 | struct cleanup *old_chain; |
51d6a954 RS |
1052 | |
1053 | status->kind = TARGET_WAITKIND_EXITED; | |
1054 | status->value.integer = 0; | |
1055 | ||
c8623080 | 1056 | old_chain = make_cleanup (monitor_wait_cleanup, &old_timeout); |
2a8b1fab | 1057 | RDEBUG(("MON wait\n")) |
eba08643 | 1058 | |
2a8b1fab JM |
1059 | #if 0 /* MAINTENANCE_CMDS */ |
1060 | /* This is somthing other than a maintenance command */ | |
4a430794 SS |
1061 | in_monitor_wait = 1; |
1062 | timeout = watchdog > 0 ? watchdog : -1; | |
1063 | #else | |
1265e2d8 | 1064 | timeout = -1; /* Don't time out -- user program is running. */ |
4a430794 | 1065 | #endif |
51d6a954 | 1066 | |
eba08643 C |
1067 | ofunc = (void (*)()) signal (SIGINT, monitor_interrupt); |
1068 | ||
2a8b1fab JM |
1069 | if (current_monitor->wait_filter) |
1070 | (*current_monitor->wait_filter)(buf,sizeof (buf),&resp_len,status) ; | |
1071 | else monitor_wait_filter(buf,sizeof (buf),&resp_len,status) ; | |
1072 | ||
1073 | #if 0 /* Transferred to monitor wait filter */ | |
a706069f SG |
1074 | do |
1075 | { | |
774e5d7f | 1076 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
51d6a954 | 1077 | |
a706069f SG |
1078 | if (resp_len <= 0) |
1079 | fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf); | |
1080 | } | |
1081 | while (resp_len < 0); | |
51d6a954 | 1082 | |
352f9e9d | 1083 | /* Print any output characters that were preceded by ^O. */ |
2a8b1fab JM |
1084 | /* FIXME - This would be great as a user settabgle flag */ |
1085 | if (remote_debug || | |
1086 | current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT) | |
352f9e9d MA |
1087 | { |
1088 | int i; | |
1089 | ||
1090 | for (i = 0; i < resp_len - 1; i++) | |
1091 | if (buf[i] == 0x0f) | |
1092 | putchar_unfiltered (buf[++i]); | |
1093 | } | |
2a8b1fab | 1094 | #endif |
352f9e9d | 1095 | |
eba08643 C |
1096 | signal (SIGINT, ofunc); |
1097 | ||
51d6a954 | 1098 | timeout = old_timeout; |
2a8b1fab | 1099 | #if 0 |
a706069f SG |
1100 | if (dump_reg_flag && current_monitor->dump_registers) |
1101 | { | |
1102 | dump_reg_flag = 0; | |
774e5d7f SS |
1103 | monitor_printf (current_monitor->dump_registers); |
1104 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
a706069f SG |
1105 | } |
1106 | ||
1107 | if (current_monitor->register_pattern) | |
1108 | parse_register_dump (buf, resp_len); | |
2a8b1fab JM |
1109 | #else |
1110 | RDEBUG(("Wait fetching registers after stop\n")) ; | |
1111 | monitor_dump_regs() ; | |
1112 | #endif | |
a706069f SG |
1113 | |
1114 | status->kind = TARGET_WAITKIND_STOPPED; | |
1115 | status->value.sig = TARGET_SIGNAL_TRAP; | |
1116 | ||
eba08643 C |
1117 | discard_cleanups (old_chain); |
1118 | ||
4a430794 SS |
1119 | in_monitor_wait = 0; |
1120 | ||
1265e2d8 | 1121 | return inferior_pid; |
51d6a954 RS |
1122 | } |
1123 | ||
1265e2d8 SG |
1124 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns |
1125 | errno value. */ | |
51d6a954 | 1126 | |
1265e2d8 SG |
1127 | static void |
1128 | monitor_fetch_register (regno) | |
1129 | int regno; | |
1130 | { | |
1265e2d8 | 1131 | char *name; |
774e5d7f | 1132 | static char zerobuf[MAX_REGISTER_RAW_SIZE] = {0}; |
eba08643 C |
1133 | char regbuf[MAX_REGISTER_RAW_SIZE * 2 + 1]; |
1134 | int i; | |
51d6a954 | 1135 | |
f7ce02f4 | 1136 | name = current_monitor->regnames[regno]; |
2a8b1fab | 1137 | RDEBUG(("MON fetchreg %d '%s'\n",regno,name)) |
f1ca4cbc | 1138 | |
2a8b1fab JM |
1139 | if (!name || (*name == '\0')) |
1140 | { RDEBUG(("No register known for %d\n",regno)) | |
774e5d7f SS |
1141 | supply_register (regno, zerobuf); |
1142 | return; | |
1143 | } | |
51d6a954 | 1144 | |
5be86c56 | 1145 | /* send the register examine command */ |
431b7d5f | 1146 | |
774e5d7f | 1147 | monitor_printf (current_monitor->getreg.cmd, name); |
1b552670 | 1148 | |
69159fad SS |
1149 | /* If RESP_DELIM is specified, we search for that as a leading |
1150 | delimiter for the register value. Otherwise, we just start | |
1151 | searching from the start of the buf. */ | |
eba08643 C |
1152 | |
1153 | if (current_monitor->getreg.resp_delim) | |
7e9576e0 | 1154 | { |
2a8b1fab | 1155 | RDEBUG(("EXP getreg.resp_delim\n")) |
7e9576e0 MA |
1156 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); |
1157 | /* Handle case of first 32 registers listed in pairs. */ | |
1158 | if (current_monitor->flags & MO_32_REGS_PAIRED | |
1159 | && regno & 1 == 1 && regno < 32) | |
2a8b1fab JM |
1160 | { RDEBUG(("EXP getreg.resp_delim\n")) ; |
1161 | monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); | |
1162 | } | |
7e9576e0 | 1163 | } |
eba08643 | 1164 | |
012be3ce DP |
1165 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set */ |
1166 | if (current_monitor->flags & MO_HEX_PREFIX) | |
1167 | { | |
1168 | int c; | |
1169 | c = readchar (timeout); | |
1170 | while (c == ' ') | |
1171 | c = readchar (timeout); | |
1172 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1173 | ; | |
1174 | else | |
1175 | error ("Bad value returned from monitor while fetching register %x.", | |
1176 | regno); | |
1177 | } | |
1178 | ||
5be86c56 JL |
1179 | /* Read upto the maximum number of hex digits for this register, skipping |
1180 | spaces, but stop reading if something else is seen. Some monitors | |
1181 | like to drop leading zeros. */ | |
eba08643 C |
1182 | |
1183 | for (i = 0; i < REGISTER_RAW_SIZE (regno) * 2; i++) | |
1184 | { | |
1185 | int c; | |
5be86c56 JL |
1186 | c = readchar (timeout); |
1187 | while (c == ' ') | |
1188 | c = readchar (timeout); | |
eba08643 | 1189 | |
5be86c56 JL |
1190 | if (!isxdigit (c)) |
1191 | break; | |
eba08643 C |
1192 | |
1193 | regbuf[i] = c; | |
1194 | } | |
1195 | ||
1196 | regbuf[i] = '\000'; /* terminate the number */ | |
2a8b1fab | 1197 | RDEBUG(("REGVAL '%s'\n",regbuf)) ; |
eba08643 | 1198 | |
69159fad SS |
1199 | /* If TERM is present, we wait for that to show up. Also, (if TERM |
1200 | is present), we will send TERM_CMD if that is present. In any | |
1201 | case, we collect all of the output into buf, and then wait for | |
1202 | the normal prompt. */ | |
1b552670 | 1203 | |
1265e2d8 | 1204 | if (current_monitor->getreg.term) |
431b7d5f | 1205 | { |
2a8b1fab | 1206 | RDEBUG(("EXP getreg.term\n")) |
eba08643 | 1207 | monitor_expect (current_monitor->getreg.term, NULL, 0); /* get response */ |
2a8b1fab | 1208 | } |
1265e2d8 | 1209 | |
2a8b1fab JM |
1210 | if (current_monitor->getreg.term_cmd) |
1211 | { RDEBUG(("EMIT getreg.term.cmd\n")) | |
1212 | monitor_printf (current_monitor->getreg.term_cmd); | |
431b7d5f | 1213 | } |
2a8b1fab JM |
1214 | if (! current_monitor->getreg.term || /* Already expected or */ |
1215 | current_monitor->getreg.term_cmd) /* ack expected */ | |
eba08643 | 1216 | monitor_expect_prompt (NULL, 0); /* get response */ |
51d6a954 | 1217 | |
eba08643 | 1218 | monitor_supply_register (regno, regbuf); |
51d6a954 RS |
1219 | } |
1220 | ||
2a8b1fab JM |
1221 | /* Sometimes, it takes several commands to dump the registers */ |
1222 | /* This is a primitive for use by variations of monitor interfaces in | |
1223 | case they need to compose the operation. | |
1224 | */ | |
1225 | int monitor_dump_reg_block(char * block_cmd) | |
1226 | { | |
1227 | char buf[1024]; | |
1228 | int resp_len; | |
1229 | monitor_printf (block_cmd); | |
1230 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); | |
1231 | parse_register_dump (buf, resp_len); | |
1232 | return 1 ; | |
1233 | } | |
1234 | ||
1235 | ||
1265e2d8 | 1236 | /* Read the remote registers into the block regs. */ |
2a8b1fab | 1237 | /* Call the specific function if it has been provided */ |
431b7d5f | 1238 | |
7e9576e0 MA |
1239 | static void |
1240 | monitor_dump_regs () | |
45993f61 | 1241 | { |
8665f3dc MS |
1242 | char buf[1024]; |
1243 | int resp_len; | |
2a8b1fab JM |
1244 | if (current_monitor->dumpregs) |
1245 | (*(current_monitor->dumpregs))() ; /* call supplied function */ | |
1246 | else | |
1247 | if (current_monitor->dump_registers) /* default version */ | |
1248 | { monitor_printf (current_monitor->dump_registers); | |
45993f61 SC |
1249 | resp_len = monitor_expect_prompt (buf, sizeof (buf)); |
1250 | parse_register_dump (buf, resp_len); | |
1251 | } | |
1252 | else | |
1253 | abort(); /* Need some way to read registers */ | |
1254 | } | |
1255 | ||
a706069f | 1256 | static void |
1265e2d8 SG |
1257 | monitor_fetch_registers (regno) |
1258 | int regno; | |
51d6a954 | 1259 | { |
2a8b1fab | 1260 | RDEBUG(("MON fetchregs\n")) ; |
45993f61 | 1261 | if (current_monitor->getreg.cmd) |
431b7d5f | 1262 | { |
45993f61 SC |
1263 | if (regno >= 0) |
1264 | { | |
1265 | monitor_fetch_register (regno); | |
1266 | return; | |
1267 | } | |
51d6a954 | 1268 | |
45993f61 SC |
1269 | for (regno = 0; regno < NUM_REGS; regno++) |
1270 | monitor_fetch_register (regno); | |
1271 | } | |
1272 | else { | |
1273 | monitor_dump_regs (); | |
1274 | } | |
51d6a954 RS |
1275 | } |
1276 | ||
431b7d5f SS |
1277 | /* Store register REGNO, or all if REGNO == 0. Return errno value. */ |
1278 | ||
1265e2d8 | 1279 | static void |
51d6a954 RS |
1280 | monitor_store_register (regno) |
1281 | int regno; | |
1282 | { | |
1283 | char *name; | |
69159fad | 1284 | unsigned int val; |
f1ca4cbc | 1285 | |
f7ce02f4 | 1286 | name = current_monitor->regnames[regno]; |
2a8b1fab JM |
1287 | if (!name || (*name == '\0')) |
1288 | { RDEBUG(("MON Cannot store unknown register\n")) | |
1289 | return; | |
1290 | } | |
51d6a954 | 1291 | |
1265e2d8 | 1292 | val = read_register (regno); |
2a8b1fab | 1293 | RDEBUG(("MON storeg %d %08x\n",regno,(unsigned int)val)) |
51d6a954 | 1294 | |
7e9576e0 | 1295 | /* send the register deposit command */ |
1265e2d8 | 1296 | |
8665f3dc MS |
1297 | if (current_monitor->flags & MO_REGISTER_VALUE_FIRST) |
1298 | monitor_printf (current_monitor->setreg.cmd, val, name); | |
7e9576e0 MA |
1299 | else if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
1300 | monitor_printf (current_monitor->setreg.cmd, name); | |
8665f3dc MS |
1301 | else |
1302 | monitor_printf (current_monitor->setreg.cmd, name, val); | |
1265e2d8 | 1303 | |
7e9576e0 | 1304 | if (current_monitor->setreg.term) |
2a8b1fab | 1305 | { RDEBUG(("EXP setreg.term\n")) |
7e9576e0 | 1306 | monitor_expect (current_monitor->setreg.term, NULL, 0); |
7e9576e0 MA |
1307 | if (current_monitor->flags & MO_SETREG_INTERACTIVE) |
1308 | monitor_printf ("%x\r", val); | |
7e9576e0 MA |
1309 | monitor_expect_prompt (NULL, 0); |
1310 | } | |
1311 | else | |
1312 | monitor_expect_prompt (NULL, 0); | |
2a8b1fab JM |
1313 | if (current_monitor->setreg.term_cmd) /* Mode exit required */ |
1314 | { RDEBUG(("EXP setreg_termcmd\n")) ; | |
1315 | monitor_printf("%s",current_monitor->setreg.term_cmd) ; | |
1316 | monitor_expect_prompt(NULL,0) ; | |
1317 | } | |
1318 | } /* monitor_store_register */ | |
1265e2d8 SG |
1319 | |
1320 | /* Store the remote registers. */ | |
1321 | ||
a706069f | 1322 | static void |
1265e2d8 SG |
1323 | monitor_store_registers (regno) |
1324 | int regno; | |
1325 | { | |
1326 | if (regno >= 0) | |
431b7d5f | 1327 | { |
1265e2d8 SG |
1328 | monitor_store_register (regno); |
1329 | return; | |
51d6a954 | 1330 | } |
431b7d5f | 1331 | |
1265e2d8 SG |
1332 | for (regno = 0; regno < NUM_REGS; regno++) |
1333 | monitor_store_register (regno); | |
51d6a954 RS |
1334 | } |
1335 | ||
1336 | /* Get ready to modify the registers array. On machines which store | |
1337 | individual registers, this doesn't need to do anything. On machines | |
1338 | which store all the registers in one fell swoop, this makes sure | |
1339 | that registers contains all the registers from the program being | |
1340 | debugged. */ | |
1341 | ||
a706069f | 1342 | static void |
51d6a954 RS |
1343 | monitor_prepare_to_store () |
1344 | { | |
1345 | /* Do nothing, since we can store individual regs */ | |
1346 | } | |
1347 | ||
a706069f SG |
1348 | static void |
1349 | monitor_files_info (ops) | |
1350 | struct target_ops *ops; | |
51d6a954 | 1351 | { |
1265e2d8 | 1352 | printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baud_rate); |
51d6a954 RS |
1353 | } |
1354 | ||
1265e2d8 SG |
1355 | static int |
1356 | monitor_write_memory (memaddr, myaddr, len) | |
51d6a954 | 1357 | CORE_ADDR memaddr; |
2b576293 | 1358 | char *myaddr; |
51d6a954 RS |
1359 | int len; |
1360 | { | |
2a8b1fab | 1361 | unsigned int val, hostval ; |
a706069f SG |
1362 | char *cmd; |
1363 | int i; | |
1b552670 | 1364 | |
2a8b1fab JM |
1365 | RDEBUG(("MON write %d %08x\n",len,(unsigned long)memaddr)) |
1366 | ||
7e9576e0 MA |
1367 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
1368 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
1369 | ||
a706069f | 1370 | /* Use memory fill command for leading 0 bytes. */ |
1b552670 | 1371 | |
a706069f SG |
1372 | if (current_monitor->fill) |
1373 | { | |
1374 | for (i = 0; i < len; i++) | |
1375 | if (myaddr[i] != 0) | |
1376 | break; | |
1377 | ||
1378 | if (i > 4) /* More than 4 zeros is worth doing */ | |
1379 | { | |
2a8b1fab JM |
1380 | RDEBUG(("MON FILL %d\n",i)) |
1381 | if (current_monitor->flags & MO_FILL_USES_ADDR) | |
1382 | monitor_printf (current_monitor->fill, memaddr, (memaddr + i)-1, 0); | |
1383 | else | |
1384 | monitor_printf (current_monitor->fill, memaddr, i, 0); | |
a706069f | 1385 | |
774e5d7f | 1386 | monitor_expect_prompt (NULL, 0); |
a706069f SG |
1387 | |
1388 | return i; | |
1389 | } | |
1390 | } | |
1391 | ||
8665f3dc MS |
1392 | #if 0 |
1393 | /* Can't actually use long longs if VAL is an int (nice idea, though). */ | |
a706069f SG |
1394 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->setmem.cmdll) |
1395 | { | |
1396 | len = 8; | |
1397 | cmd = current_monitor->setmem.cmdll; | |
1398 | } | |
8665f3dc MS |
1399 | else |
1400 | #endif | |
1401 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->setmem.cmdl) | |
a706069f SG |
1402 | { |
1403 | len = 4; | |
1404 | cmd = current_monitor->setmem.cmdl; | |
1405 | } | |
1406 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->setmem.cmdw) | |
1407 | { | |
1408 | len = 2; | |
1409 | cmd = current_monitor->setmem.cmdw; | |
1410 | } | |
1411 | else | |
1412 | { | |
1413 | len = 1; | |
1414 | cmd = current_monitor->setmem.cmdb; | |
1415 | } | |
1416 | ||
1417 | val = extract_unsigned_integer (myaddr, len); | |
2a8b1fab JM |
1418 | |
1419 | if (len == 4) | |
1420 | { hostval = * (unsigned int *) myaddr ; | |
1421 | RDEBUG(("Hostval(%08x) val(%08x)\n",hostval,val)) ; | |
1422 | } | |
1423 | ||
a706069f | 1424 | |
012be3ce DP |
1425 | if (current_monitor->flags & MO_NO_ECHO_ON_SETMEM) |
1426 | monitor_printf_noecho (cmd, memaddr, val); | |
7e9576e0 MA |
1427 | else if (current_monitor->flags & MO_SETMEM_INTERACTIVE) |
1428 | { | |
1429 | ||
1430 | monitor_printf_noecho (cmd, memaddr); | |
1431 | ||
1432 | if (current_monitor->setmem.term) | |
2a8b1fab | 1433 | { RDEBUG(("EXP setmem.term")) ; |
7e9576e0 | 1434 | monitor_expect (current_monitor->setmem.term, NULL, 0); |
7e9576e0 | 1435 | monitor_printf ("%x\r", val); |
2a8b1fab JM |
1436 | } |
1437 | if (current_monitor->setmem.term_cmd) | |
1438 | { /* Emit this to get out of the memory editing state */ | |
1439 | monitor_printf("%s",current_monitor->setmem.term_cmd) ; | |
1440 | /* Drop through to expecting a prompt */ | |
7e9576e0 MA |
1441 | } |
1442 | } | |
012be3ce DP |
1443 | else |
1444 | monitor_printf (cmd, memaddr, val); | |
1265e2d8 | 1445 | |
774e5d7f | 1446 | monitor_expect_prompt (NULL, 0); |
1265e2d8 | 1447 | |
a706069f | 1448 | return len; |
51d6a954 RS |
1449 | } |
1450 | ||
2a8b1fab | 1451 | |
1c3cd1b0 AC |
1452 | static int |
1453 | monitor_write_even_block(memaddr,myaddr,len) | |
2a8b1fab JM |
1454 | CORE_ADDR memaddr ; |
1455 | char * myaddr ; | |
1456 | int len ; | |
1457 | { | |
1458 | unsigned int val ; | |
1459 | int written = 0 ;; | |
1460 | /* Enter the sub mode */ | |
1461 | monitor_printf(current_monitor->setmem.cmdl,memaddr) ; | |
1462 | monitor_expect_prompt(NULL,0) ; | |
1463 | ||
1464 | while (len) | |
1465 | { | |
1466 | val = extract_unsigned_integer(myaddr,4) ; /* REALLY */ | |
1467 | monitor_printf("%x\r",val) ; | |
1468 | myaddr += 4 ; | |
1469 | memaddr += 4 ; | |
1470 | written += 4 ; | |
1471 | RDEBUG((" @ %08x\n",memaddr)) | |
1472 | /* If we wanted to, here we could validate the address */ | |
1473 | monitor_expect_prompt(NULL,0) ; | |
1474 | } | |
1475 | /* Now exit the sub mode */ | |
1476 | monitor_printf (current_monitor->getreg.term_cmd); | |
1477 | monitor_expect_prompt(NULL,0) ; | |
1478 | return written ; | |
1479 | } | |
1480 | ||
1481 | ||
1482 | static int monitor_write_memory_bytes(memaddr,myaddr,len) | |
1483 | CORE_ADDR memaddr ; | |
1484 | char * myaddr ; | |
1485 | int len ; | |
1486 | { | |
1487 | unsigned char val ; | |
1488 | int written = 0 ; | |
1489 | if (len == 0) return 0 ; | |
1490 | /* Enter the sub mode */ | |
1491 | monitor_printf(current_monitor->setmem.cmdb,memaddr) ; | |
1492 | monitor_expect_prompt(NULL,0) ; | |
1493 | while (len) | |
1494 | { | |
1495 | val = *myaddr ; | |
1496 | monitor_printf("%x\r",val) ; | |
1497 | myaddr++ ; | |
1498 | memaddr++ ; | |
1499 | written++ ; | |
1500 | /* If we wanted to, here we could validate the address */ | |
1501 | monitor_expect_prompt(NULL,0) ; | |
1502 | len-- ; | |
1503 | } | |
1504 | /* Now exit the sub mode */ | |
1505 | monitor_printf (current_monitor->getreg.term_cmd); | |
1506 | monitor_expect_prompt(NULL,0) ; | |
1507 | return written ; | |
1508 | } | |
1509 | ||
1510 | ||
1c3cd1b0 AC |
1511 | static void |
1512 | longlongendswap (unsigned char * a) | |
2a8b1fab JM |
1513 | { |
1514 | int i,j ; | |
1515 | unsigned char x ; | |
1516 | i = 0 ; j = 7 ; | |
1517 | while (i < 4) | |
1518 | { x = *(a+i) ; | |
1519 | *(a+i) = *(a+j) ; | |
1520 | *(a+j) = x ; | |
1521 | i++ , j-- ; | |
1522 | } | |
1523 | } | |
1524 | /* Format 32 chars of long long value, advance the pointer */ | |
1525 | static char * hexlate = "0123456789abcdef" ; | |
1526 | static char * longlong_hexchars(unsigned long long value, | |
1527 | char * outbuff ) | |
1528 | { | |
1529 | if (value == 0) { *outbuff++ = '0' ; return outbuff ; } | |
1530 | else | |
1531 | { static unsigned char disbuf[8] ; /* disassembly buffer */ | |
1532 | unsigned char * scan , * limit ; /* loop controls */ | |
1533 | unsigned char c , nib ; | |
1534 | int leadzero = 1 ; | |
1535 | scan = disbuf ; limit = scan + 8 ; | |
1536 | { unsigned long long * dp ; | |
1537 | dp = (unsigned long long *) scan ; | |
1538 | *dp = value ; | |
1539 | } | |
1540 | longlongendswap(disbuf) ; /* FIXME: ONly on big endian hosts */ | |
1541 | while (scan < limit) | |
1542 | { c = *scan++ ; /* a byte of our long long value */ | |
1543 | if (leadzero) | |
1544 | if (c == 0) continue ; | |
1545 | else leadzero = 0 ; /* henceforth we print even zeroes */ | |
1546 | nib = c >> 4 ; /* high nibble bits */ | |
1547 | *outbuff++ = hexlate[nib] ; | |
1548 | nib = c & 0x0f ; /* low nibble bits */ | |
1549 | *outbuff++ = hexlate[nib] ; | |
1550 | } | |
1551 | return outbuff ; | |
1552 | } | |
1553 | } /* longlong_hexchars */ | |
1554 | ||
1555 | ||
1556 | ||
1557 | /* I am only going to call this when writing virtual byte streams. | |
1558 | Which possably entails endian conversions | |
1559 | */ | |
1560 | static int monitor_write_memory_longlongs(memaddr,myaddr,len) | |
1561 | CORE_ADDR memaddr ; | |
1562 | char * myaddr ; | |
1563 | int len ; | |
1564 | { | |
1565 | static char hexstage[20] ; /* At least 16 digits required, plus null */ | |
1566 | char * endstring ; | |
1567 | long long * llptr ; | |
1568 | long long value ; | |
1569 | int written = 0 ; | |
1570 | llptr = (unsigned long long *) myaddr ; | |
1571 | if (len == 0 ) return 0 ; | |
1572 | monitor_printf(current_monitor->setmem.cmdll,memaddr) ; | |
1573 | monitor_expect_prompt(NULL,0) ; | |
1574 | while (len >= 8 ) | |
1575 | { | |
1576 | value = *llptr ; | |
1577 | endstring = longlong_hexchars(*llptr,hexstage) ; | |
1578 | *endstring = '\0' ; /* NUll terminate for printf */ | |
1579 | monitor_printf("%s\r",hexstage) ; | |
1580 | llptr++ ; | |
1581 | memaddr += 8 ; | |
1582 | written += 8 ; | |
1583 | /* If we wanted to, here we could validate the address */ | |
1584 | monitor_expect_prompt(NULL,0) ; | |
1585 | len -= 8 ; | |
1586 | } | |
1587 | /* Now exit the sub mode */ | |
1588 | monitor_printf (current_monitor->getreg.term_cmd); | |
1589 | monitor_expect_prompt(NULL,0) ; | |
1590 | return written ; | |
1591 | } /* */ | |
1592 | ||
1593 | ||
1594 | ||
1595 | /* ----- MONITOR_WRITE_MEMORY_BLOCK ---------------------------- */ | |
1596 | /* This is for the large blocks of memory which may occur in downloading. | |
1597 | And for monitors which use interactive entry, | |
1598 | And for monitors which do not have other downloading methods. | |
1599 | Without this, we will end up calling monitor_write_memory many times | |
1600 | and do the entry and exit of the sub mode many times | |
1601 | This currently assumes... | |
1602 | MO_SETMEM_INTERACTIVE | |
1603 | ! MO_NO_ECHO_ON_SETMEM | |
1604 | To use this, the you have to patch the monitor_cmds block with | |
1605 | this function. Otherwise, its not tuned up for use by all | |
1606 | monitor variations. | |
1607 | */ | |
1608 | ||
1609 | static int monitor_write_memory_block(memaddr,myaddr,len) | |
1610 | CORE_ADDR memaddr ; | |
1611 | char * myaddr ; | |
1612 | int len ; | |
1613 | { | |
1614 | int written ; | |
1615 | written = 0 ; | |
1616 | /* FIXME: This would be a good place to put the zero test */ | |
1617 | #if 1 | |
1618 | if ((len > 8) && (((len & 0x07)) == 0) && current_monitor->setmem.cmdll) | |
1619 | { | |
1620 | return monitor_write_memory_longlongs(memaddr,myaddr,len) ; | |
1621 | } | |
1622 | #endif | |
1623 | #if 0 | |
1624 | if (len > 4) | |
1625 | { | |
1626 | int sublen ; | |
1627 | written = monitor_write_even_block(memaddr,myaddr,len) ; | |
1628 | /* Adjust calling parameters by written amount */ | |
1629 | memaddr += written ; | |
1630 | myaddr += written ; | |
1631 | len -= written ; | |
1632 | } | |
1633 | #endif | |
1634 | written = monitor_write_memory_bytes(memaddr,myaddr,len) ; | |
1635 | return written ; | |
1636 | } | |
1637 | ||
eba08643 C |
1638 | /* This is an alternate form of monitor_read_memory which is used for monitors |
1639 | which can only read a single byte/word/etc. at a time. */ | |
1640 | ||
1641 | static int | |
1642 | monitor_read_memory_single (memaddr, myaddr, len) | |
1643 | CORE_ADDR memaddr; | |
2b576293 | 1644 | char *myaddr; |
eba08643 C |
1645 | int len; |
1646 | { | |
69159fad SS |
1647 | unsigned int val; |
1648 | char membuf[sizeof(int) * 2 + 1]; | |
eba08643 C |
1649 | char *p; |
1650 | char *cmd; | |
1651 | int i; | |
1652 | ||
2a8b1fab | 1653 | RDEBUG(("MON read single\n")) ; |
8665f3dc MS |
1654 | #if 0 |
1655 | /* Can't actually use long longs (nice idea, though). In fact, the | |
1656 | call to strtoul below will fail if it tries to convert a value | |
1657 | that's too big to fit in a long. */ | |
eba08643 C |
1658 | if ((memaddr & 0x7) == 0 && len >= 8 && current_monitor->getmem.cmdll) |
1659 | { | |
1660 | len = 8; | |
1661 | cmd = current_monitor->getmem.cmdll; | |
1662 | } | |
8665f3dc MS |
1663 | else |
1664 | #endif | |
1665 | if ((memaddr & 0x3) == 0 && len >= 4 && current_monitor->getmem.cmdl) | |
eba08643 C |
1666 | { |
1667 | len = 4; | |
1668 | cmd = current_monitor->getmem.cmdl; | |
1669 | } | |
1670 | else if ((memaddr & 0x1) == 0 && len >= 2 && current_monitor->getmem.cmdw) | |
1671 | { | |
1672 | len = 2; | |
1673 | cmd = current_monitor->getmem.cmdw; | |
1674 | } | |
1675 | else | |
1676 | { | |
1677 | len = 1; | |
1678 | cmd = current_monitor->getmem.cmdb; | |
1679 | } | |
1680 | ||
15f13cd0 | 1681 | /* Send the examine command. */ |
eba08643 C |
1682 | |
1683 | monitor_printf (cmd, memaddr); | |
1684 | ||
15f13cd0 DE |
1685 | /* If RESP_DELIM is specified, we search for that as a leading |
1686 | delimiter for the memory value. Otherwise, we just start | |
1687 | searching from the start of the buf. */ | |
eba08643 C |
1688 | |
1689 | if (current_monitor->getmem.resp_delim) | |
2a8b1fab JM |
1690 | { RDEBUG(("EXP getmem.resp_delim\n")) ; |
1691 | monitor_expect_regexp (&getmem_resp_delim_pattern, NULL, 0); | |
1692 | } | |
eba08643 | 1693 | |
15f13cd0 DE |
1694 | /* Now, read the appropriate number of hex digits for this loc, |
1695 | skipping spaces. */ | |
eba08643 | 1696 | |
15f13cd0 | 1697 | /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */ |
012be3ce DP |
1698 | if (current_monitor->flags & MO_HEX_PREFIX) |
1699 | { | |
1700 | int c; | |
15f13cd0 | 1701 | |
012be3ce DP |
1702 | c = readchar (timeout); |
1703 | while (c == ' ') | |
1704 | c = readchar (timeout); | |
1705 | if ((c == '0') && ((c = readchar (timeout)) == 'x')) | |
1706 | ; | |
1707 | else | |
20dd6c3b AC |
1708 | monitor_error ("monitor_read_memory_single (0x%x): bad response from monitor: %.*s%c.", |
1709 | memaddr, i, membuf, c); | |
012be3ce | 1710 | } |
eba08643 C |
1711 | for (i = 0; i < len * 2; i++) |
1712 | { | |
1713 | int c; | |
1714 | ||
1715 | while (1) | |
1716 | { | |
1717 | c = readchar (timeout); | |
1718 | if (isxdigit (c)) | |
1719 | break; | |
1720 | if (c == ' ') | |
1721 | continue; | |
1722 | ||
20dd6c3b AC |
1723 | monitor_error ("monitor_read_memory_single (0x%x): bad response from monitor: %.*s%c.", |
1724 | memaddr, i, membuf, c); | |
eba08643 C |
1725 | } |
1726 | ||
1727 | membuf[i] = c; | |
1728 | } | |
1729 | ||
1730 | membuf[i] = '\000'; /* terminate the number */ | |
1731 | ||
1732 | /* If TERM is present, we wait for that to show up. Also, (if TERM is | |
1733 | present), we will send TERM_CMD if that is present. In any case, we collect | |
1734 | all of the output into buf, and then wait for the normal prompt. */ | |
1735 | ||
1736 | if (current_monitor->getmem.term) | |
1737 | { | |
1738 | monitor_expect (current_monitor->getmem.term, NULL, 0); /* get response */ | |
1739 | ||
1740 | if (current_monitor->getmem.term_cmd) | |
1741 | { | |
1742 | monitor_printf (current_monitor->getmem.term_cmd); | |
1743 | monitor_expect_prompt (NULL, 0); | |
1744 | } | |
1745 | } | |
1746 | else | |
1747 | monitor_expect_prompt (NULL, 0); /* get response */ | |
1748 | ||
1749 | p = membuf; | |
1750 | val = strtoul (membuf, &p, 16); | |
1751 | ||
1752 | if (val == 0 && membuf == p) | |
20dd6c3b AC |
1753 | monitor_error ("monitor_read_memory_single (0x%x): bad value from monitor: %s.", |
1754 | memaddr, 0, membuf, 0); | |
eba08643 C |
1755 | |
1756 | /* supply register stores in target byte order, so swap here */ | |
1757 | ||
1758 | store_unsigned_integer (myaddr, len, val); | |
1759 | ||
1760 | return len; | |
1761 | } | |
1762 | ||
7e9576e0 MA |
1763 | /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's |
1764 | memory at MEMADDR. Returns length moved. Currently, we do no more | |
1765 | than 16 bytes at a time. */ | |
431b7d5f | 1766 | |
1265e2d8 SG |
1767 | static int |
1768 | monitor_read_memory (memaddr, myaddr, len) | |
51d6a954 RS |
1769 | CORE_ADDR memaddr; |
1770 | char *myaddr; | |
1771 | int len; | |
1772 | { | |
69159fad | 1773 | unsigned int val; |
774e5d7f | 1774 | char buf[512]; |
1265e2d8 | 1775 | char *p, *p1; |
1265e2d8 | 1776 | int resp_len; |
a706069f | 1777 | int i; |
7e9576e0 MA |
1778 | CORE_ADDR dumpaddr; |
1779 | ||
20dd6c3b AC |
1780 | if (len <= 0) |
1781 | { | |
1782 | RDEBUG (("Zero length call to monitor_read_memory\n")); | |
1783 | return 0; | |
1784 | } | |
1785 | ||
2a8b1fab JM |
1786 | if (remote_debug) printf("MON read block ta(%08x) ha(%08x) %d\n", |
1787 | (unsigned long) memaddr , (unsigned long)myaddr, len); | |
1788 | ||
7e9576e0 MA |
1789 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) |
1790 | memaddr = ADDR_BITS_REMOVE (memaddr); | |
a706069f | 1791 | |
eba08643 C |
1792 | if (current_monitor->flags & MO_GETMEM_READ_SINGLE) |
1793 | return monitor_read_memory_single (memaddr, myaddr, len); | |
1794 | ||
a706069f | 1795 | len = min (len, 16); |
1265e2d8 | 1796 | |
2a8b1fab JM |
1797 | /* Some dumpers align the first data with the preceeding 16 |
1798 | byte boundary. Some print blanks and start at the | |
1799 | requested boundary. EXACT_DUMPADDR | |
1800 | */ | |
1801 | ||
1802 | dumpaddr = (current_monitor->flags & MO_EXACT_DUMPADDR) | |
1803 | ? memaddr : memaddr & ~ 0x0f ; | |
7e9576e0 | 1804 | |
15f13cd0 | 1805 | /* See if xfer would cross a 16 byte boundary. If so, clip it. */ |
774e5d7f SS |
1806 | if (((memaddr ^ (memaddr + len - 1)) & ~0xf) != 0) |
1807 | len = ((memaddr + len) & ~0xf) - memaddr; | |
1808 | ||
15f13cd0 | 1809 | /* send the memory examine command */ |
1265e2d8 | 1810 | |
774e5d7f SS |
1811 | if (current_monitor->flags & MO_GETMEM_NEEDS_RANGE) |
1812 | monitor_printf (current_monitor->getmem.cmdb, memaddr, memaddr + len - 1); | |
7e9576e0 MA |
1813 | else if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1814 | monitor_printf (current_monitor->getmem.cmdb, dumpaddr); | |
774e5d7f SS |
1815 | else |
1816 | monitor_printf (current_monitor->getmem.cmdb, memaddr, len); | |
1265e2d8 | 1817 | |
15f13cd0 DE |
1818 | /* If TERM is present, we wait for that to show up. Also, (if TERM |
1819 | is present), we will send TERM_CMD if that is present. In any | |
1820 | case, we collect all of the output into buf, and then wait for | |
1821 | the normal prompt. */ | |
1265e2d8 SG |
1822 | |
1823 | if (current_monitor->getmem.term) | |
431b7d5f | 1824 | { |
774e5d7f | 1825 | resp_len = monitor_expect (current_monitor->getmem.term, buf, sizeof buf); /* get response */ |
1265e2d8 SG |
1826 | |
1827 | if (resp_len <= 0) | |
20dd6c3b AC |
1828 | monitor_error ("monitor_read_memory (0x%x): excessive response from monitor: %.*s.", |
1829 | memaddr, resp_len, buf, 0); | |
1265e2d8 SG |
1830 | |
1831 | if (current_monitor->getmem.term_cmd) | |
431b7d5f | 1832 | { |
1265e2d8 SG |
1833 | SERIAL_WRITE (monitor_desc, current_monitor->getmem.term_cmd, |
1834 | strlen (current_monitor->getmem.term_cmd)); | |
774e5d7f | 1835 | monitor_expect_prompt (NULL, 0); |
1b552670 | 1836 | } |
51d6a954 | 1837 | } |
1265e2d8 | 1838 | else |
774e5d7f SS |
1839 | resp_len = monitor_expect_prompt (buf, sizeof buf); /* get response */ |
1840 | ||
1841 | p = buf; | |
1842 | ||
15f13cd0 DE |
1843 | /* If RESP_DELIM is specified, we search for that as a leading |
1844 | delimiter for the values. Otherwise, we just start searching | |
1845 | from the start of the buf. */ | |
1265e2d8 SG |
1846 | |
1847 | if (current_monitor->getmem.resp_delim) | |
1848 | { | |
283dc598 SG |
1849 | int retval, tmp; |
1850 | struct re_registers resp_strings; | |
2a8b1fab | 1851 | RDEBUG(("MON getmem.resp_delim %s\n",current_monitor->getmem.resp_delim)) ; |
283dc598 | 1852 | |
edc452d0 | 1853 | memset (&resp_strings, 0, sizeof (struct re_registers)); |
283dc598 SG |
1854 | tmp = strlen (p); |
1855 | retval = re_search (&getmem_resp_delim_pattern, p, tmp, 0, tmp, | |
1856 | &resp_strings); | |
1857 | ||
1858 | if (retval < 0) | |
20dd6c3b AC |
1859 | monitor_error ("monitor_read_memory (0x%x): bad response from monitor: %.*s.", |
1860 | memaddr, resp_len, buf, 0); | |
283dc598 SG |
1861 | |
1862 | p += resp_strings.end[0]; | |
1863 | #if 0 | |
774e5d7f | 1864 | p = strstr (p, current_monitor->getmem.resp_delim); |
1265e2d8 | 1865 | if (!p) |
20dd6c3b AC |
1866 | monitor_error ("monitor_read_memory (0x%x): bad response from monitor: %.*s.", |
1867 | memaddr, resp_len, buf, 0); | |
1265e2d8 | 1868 | p += strlen (current_monitor->getmem.resp_delim); |
283dc598 | 1869 | #endif |
1265e2d8 | 1870 | } |
2a8b1fab | 1871 | if (remote_debug) printf("MON scanning %d ,%08x '%s'\n",len,p,p) ; |
7e9576e0 MA |
1872 | if (current_monitor->flags & MO_GETMEM_16_BOUNDARY) |
1873 | { | |
2a8b1fab JM |
1874 | char c ; |
1875 | int fetched = 0 ; | |
7e9576e0 | 1876 | i = len; |
2a8b1fab JM |
1877 | c = *p ; |
1878 | ||
1879 | ||
1880 | while (!(c == '\000' || c == '\n' || c == '\r') && i > 0) | |
1881 | { if (isxdigit (c)) | |
1882 | { if ((dumpaddr >= memaddr) && (i > 0)) | |
1883 | { val = fromhex (c) * 16 + fromhex (*(p+1)); | |
7e9576e0 | 1884 | *myaddr++ = val; |
2a8b1fab | 1885 | if (remote_debug) printf("[%02x]",val) ; |
7e9576e0 | 1886 | --i; |
2a8b1fab | 1887 | fetched++ ; |
7e9576e0 MA |
1888 | } |
1889 | ++dumpaddr; | |
1890 | ++p; | |
1891 | } | |
2a8b1fab JM |
1892 | ++p; /* skip a blank or other non hex char */ |
1893 | c = *p ; | |
7e9576e0 | 1894 | } |
2a8b1fab JM |
1895 | if (fetched == 0) error("Failed to read via monitor") ; |
1896 | if (remote_debug) printf("\n") ; | |
1897 | return fetched ; /* Return the number of bytes actually read */ | |
7e9576e0 | 1898 | } |
2a8b1fab | 1899 | RDEBUG(("MON scanning bytes\n")) ; |
7e9576e0 | 1900 | |
a706069f SG |
1901 | for (i = len; i > 0; i--) |
1902 | { | |
774e5d7f SS |
1903 | /* Skip non-hex chars, but bomb on end of string and newlines */ |
1904 | ||
1905 | while (1) | |
1906 | { | |
1907 | if (isxdigit (*p)) | |
1908 | break; | |
7e9576e0 | 1909 | |
774e5d7f | 1910 | if (*p == '\000' || *p == '\n' || *p == '\r') |
20dd6c3b AC |
1911 | monitor_error ("monitor_read_memory (0x%x): badly terminated response from monitor: %.*s", |
1912 | memaddr, resp_len, buf, 0); | |
774e5d7f SS |
1913 | p++; |
1914 | } | |
1915 | ||
a706069f | 1916 | val = strtoul (p, &p1, 16); |
1265e2d8 | 1917 | |
a706069f | 1918 | if (val == 0 && p == p1) |
20dd6c3b AC |
1919 | monitor_error ("monitor_read_memory (0x%x): bad value from monitor: %.*s.", |
1920 | memaddr, resp_len, buf, 0); | |
1265e2d8 | 1921 | |
a706069f | 1922 | *myaddr++ = val; |
774e5d7f SS |
1923 | |
1924 | if (i == 1) | |
1925 | break; | |
1926 | ||
1927 | p = p1; | |
a706069f | 1928 | } |
1265e2d8 | 1929 | |
a706069f | 1930 | return len; |
51d6a954 RS |
1931 | } |
1932 | ||
a706069f | 1933 | static int |
1265e2d8 | 1934 | monitor_xfer_memory (memaddr, myaddr, len, write, target) |
51d6a954 RS |
1935 | CORE_ADDR memaddr; |
1936 | char *myaddr; | |
1937 | int len; | |
1938 | int write; | |
1939 | struct target_ops *target; /* ignored */ | |
1940 | { | |
45993f61 | 1941 | return dcache_xfer_memory (remote_dcache, memaddr, myaddr, len, write); |
51d6a954 RS |
1942 | } |
1943 | ||
a706069f SG |
1944 | static void |
1945 | monitor_kill () | |
51d6a954 RS |
1946 | { |
1947 | return; /* ignore attempts to kill target system */ | |
1948 | } | |
1949 | ||
a706069f SG |
1950 | /* All we actually do is set the PC to the start address of exec_bfd, and start |
1951 | the program at that point. */ | |
1952 | ||
1953 | static void | |
1954 | monitor_create_inferior (exec_file, args, env) | |
1955 | char *exec_file; | |
1956 | char *args; | |
1957 | char **env; | |
1958 | { | |
1959 | if (args && (*args != '\000')) | |
1960 | error ("Args are not supported by the monitor."); | |
1961 | ||
012be3ce | 1962 | first_time = 1; |
a706069f SG |
1963 | clear_proceed_status (); |
1964 | proceed (bfd_get_start_address (exec_bfd), TARGET_SIGNAL_0, 0); | |
1965 | } | |
1966 | ||
51d6a954 RS |
1967 | /* Clean up when a program exits. |
1968 | The program actually lives on in the remote processor's RAM, and may be | |
1969 | run again without a download. Don't leave it full of breakpoint | |
1970 | instructions. */ | |
1971 | ||
a706069f | 1972 | static void |
51d6a954 RS |
1973 | monitor_mourn_inferior () |
1974 | { | |
8f078234 | 1975 | unpush_target (targ_ops); |
51d6a954 RS |
1976 | generic_mourn_inferior (); /* Do all the proper things now */ |
1977 | } | |
1978 | ||
1265e2d8 | 1979 | #define NUM_MONITOR_BREAKPOINTS 8 |
51d6a954 | 1980 | |
1265e2d8 | 1981 | static CORE_ADDR breakaddr[NUM_MONITOR_BREAKPOINTS] = {0}; |
51d6a954 | 1982 | |
431b7d5f SS |
1983 | /* Tell the monitor to add a breakpoint. */ |
1984 | ||
a706069f | 1985 | static int |
51d6a954 RS |
1986 | monitor_insert_breakpoint (addr, shadow) |
1987 | CORE_ADDR addr; | |
1988 | char *shadow; | |
1989 | { | |
1990 | int i; | |
7e9576e0 MA |
1991 | unsigned char *bp; |
1992 | int bplen; | |
1993 | ||
2a8b1fab | 1994 | RDEBUG(("MON inst bkpt %08x\n",addr)) |
7e9576e0 MA |
1995 | if (current_monitor->set_break == NULL) |
1996 | error ("No set_break defined for this monitor"); | |
1997 | ||
1998 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
1999 | addr = ADDR_BITS_REMOVE (addr); | |
2000 | ||
2001 | /* Determine appropriate breakpoint size for this address. */ | |
2002 | bp = memory_breakpoint_from_pc (&addr, &bplen); | |
51d6a954 | 2003 | |
1265e2d8 | 2004 | for (i = 0; i < NUM_MONITOR_BREAKPOINTS; i++) |
431b7d5f SS |
2005 | { |
2006 | if (breakaddr[i] == 0) | |
2007 | { | |
2008 | breakaddr[i] = addr; | |
7e9576e0 | 2009 | monitor_read_memory (addr, shadow, bplen); |
f7ce02f4 | 2010 | monitor_printf (current_monitor->set_break, addr); |
774e5d7f | 2011 | monitor_expect_prompt (NULL, 0); |
431b7d5f SS |
2012 | return 0; |
2013 | } | |
f1ca4cbc | 2014 | } |
f1ca4cbc | 2015 | |
1265e2d8 | 2016 | error ("Too many breakpoints (> %d) for monitor.", NUM_MONITOR_BREAKPOINTS); |
51d6a954 RS |
2017 | } |
2018 | ||
431b7d5f SS |
2019 | /* Tell the monitor to remove a breakpoint. */ |
2020 | ||
a706069f | 2021 | static int |
51d6a954 RS |
2022 | monitor_remove_breakpoint (addr, shadow) |
2023 | CORE_ADDR addr; | |
2024 | char *shadow; | |
2025 | { | |
2026 | int i; | |
2027 | ||
2a8b1fab | 2028 | RDEBUG(("MON rmbkpt %08x\n",addr)) |
7e9576e0 MA |
2029 | if (current_monitor->clr_break == NULL) |
2030 | error ("No clr_break defined for this monitor"); | |
2031 | ||
2032 | if (current_monitor->flags & MO_ADDR_BITS_REMOVE) | |
2033 | addr = ADDR_BITS_REMOVE (addr); | |
2034 | ||
1265e2d8 | 2035 | for (i = 0; i < NUM_MONITOR_BREAKPOINTS; i++) |
431b7d5f SS |
2036 | { |
2037 | if (breakaddr[i] == addr) | |
2038 | { | |
2039 | breakaddr[i] = 0; | |
2040 | /* some monitors remove breakpoints based on the address */ | |
7e9576e0 | 2041 | if (current_monitor->flags & MO_CLR_BREAK_USES_ADDR) |
f7ce02f4 | 2042 | monitor_printf (current_monitor->clr_break, addr); |
7e9576e0 MA |
2043 | else if (current_monitor->flags & MO_CLR_BREAK_1_BASED) |
2044 | monitor_printf (current_monitor->clr_break, i + 1); | |
431b7d5f | 2045 | else |
f7ce02f4 | 2046 | monitor_printf (current_monitor->clr_break, i); |
774e5d7f | 2047 | monitor_expect_prompt (NULL, 0); |
431b7d5f SS |
2048 | return 0; |
2049 | } | |
7804e5bc | 2050 | } |
1265e2d8 | 2051 | fprintf_unfiltered (stderr, "Can't find breakpoint associated with 0x%x\n", addr); |
51d6a954 RS |
2052 | return 1; |
2053 | } | |
2054 | ||
f7ce02f4 DP |
2055 | /* monitor_wait_srec_ack -- wait for the target to send an acknowledgement for |
2056 | an S-record. Return non-zero if the ACK is received properly. */ | |
2057 | ||
2058 | static int | |
2059 | monitor_wait_srec_ack () | |
2060 | { | |
7e9576e0 MA |
2061 | int i, ch; |
2062 | ||
2063 | if (current_monitor->flags & MO_SREC_ACK_PLUS) | |
2064 | { | |
2065 | return (readchar (timeout) == '+'); | |
2066 | } | |
2067 | else if (current_monitor->flags & MO_SREC_ACK_ROTATE) | |
2068 | { | |
2069 | /* Eat two backspaces, a "rotating" char (|/-\), and a space. */ | |
2070 | if ((ch = readchar (1)) < 0) | |
2071 | return 0; | |
2072 | if ((ch = readchar (1)) < 0) | |
2073 | return 0; | |
2074 | if ((ch = readchar (1)) < 0) | |
2075 | return 0; | |
2076 | if ((ch = readchar (1)) < 0) | |
2077 | return 0; | |
2078 | } | |
2079 | return 1; | |
f7ce02f4 DP |
2080 | } |
2081 | ||
774e5d7f | 2082 | /* monitor_load -- download a file. */ |
431b7d5f | 2083 | |
a706069f SG |
2084 | static void |
2085 | monitor_load (file, from_tty) | |
21ed3dcd | 2086 | char *file; |
a706069f | 2087 | int from_tty; |
21ed3dcd | 2088 | { |
45993f61 | 2089 | dcache_flush (remote_dcache); |
2a8b1fab | 2090 | RDEBUG(("MON load\n")) |
45993f61 | 2091 | |
774e5d7f SS |
2092 | if (current_monitor->load_routine) |
2093 | current_monitor->load_routine (monitor_desc, file, hashmark); | |
2094 | else | |
b9ab37f0 | 2095 | { /* The default is ascii S-records */ |
7e9576e0 MA |
2096 | int n; |
2097 | unsigned long load_offset; | |
2098 | char buf[128]; | |
2099 | ||
2100 | /* enable user to specify address for downloading as 2nd arg to load */ | |
2101 | n = sscanf (file, "%s 0x%lx", buf, &load_offset); | |
2102 | if (n > 1) | |
2103 | file = buf; | |
2104 | else | |
2105 | load_offset = 0; | |
2106 | ||
f7ce02f4 | 2107 | monitor_printf (current_monitor->load); |
b9ab37f0 MM |
2108 | if (current_monitor->loadresp) |
2109 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
2110 | ||
7e9576e0 MA |
2111 | load_srec (monitor_desc, file, (bfd_vma) load_offset, |
2112 | 32, SREC_ALL, hashmark, | |
f7ce02f4 DP |
2113 | current_monitor->flags & MO_SREC_ACK ? |
2114 | monitor_wait_srec_ack : NULL); | |
b9ab37f0 MM |
2115 | |
2116 | monitor_expect_prompt (NULL, 0); | |
2117 | } | |
21ed3dcd | 2118 | |
a706069f | 2119 | /* Finally, make the PC point at the start address */ |
431b7d5f | 2120 | |
45993f61 SC |
2121 | if (exec_bfd) |
2122 | write_pc (bfd_get_start_address (exec_bfd)); | |
431b7d5f | 2123 | |
a706069f | 2124 | inferior_pid = 0; /* No process now */ |
51d6a954 | 2125 | |
a706069f SG |
2126 | /* This is necessary because many things were based on the PC at the time that |
2127 | we attached to the monitor, which is no longer valid now that we have loaded | |
2128 | new code (and just changed the PC). Another way to do this might be to call | |
2129 | normal_stop, except that the stack may not be valid, and things would get | |
2130 | horribly confused... */ | |
51d6a954 | 2131 | |
a706069f SG |
2132 | clear_symtab_users (); |
2133 | } | |
2134 | ||
2135 | static void | |
2136 | monitor_stop () | |
2137 | { | |
2a8b1fab | 2138 | RDEBUG(("MON stop\n")) ; |
69159fad SS |
2139 | if ((current_monitor->flags & MO_SEND_BREAK_ON_STOP) != 0) |
2140 | SERIAL_SEND_BREAK (monitor_desc); | |
eba08643 C |
2141 | if (current_monitor->stop) |
2142 | monitor_printf_noecho (current_monitor->stop); | |
51d6a954 RS |
2143 | } |
2144 | ||
431b7d5f SS |
2145 | /* Put a command string, in args, out to MONITOR. Output from MONITOR |
2146 | is placed on the users terminal until the prompt is seen. FIXME: We | |
2147 | read the characters ourseleves here cause of a nasty echo. */ | |
2148 | ||
8f078234 | 2149 | static void |
a706069f | 2150 | monitor_command (args, from_tty) |
431b7d5f | 2151 | char *args; |
a706069f | 2152 | int from_tty; |
51d6a954 | 2153 | { |
7804e5bc | 2154 | char *p; |
a706069f SG |
2155 | int resp_len; |
2156 | char buf[1000]; | |
431b7d5f | 2157 | |
51d6a954 | 2158 | if (monitor_desc == NULL) |
431b7d5f | 2159 | error ("monitor target not open."); |
7804e5bc | 2160 | |
f7ce02f4 | 2161 | p = current_monitor->prompt; |
774e5d7f | 2162 | |
431b7d5f SS |
2163 | /* Send the command. Note that if no args were supplied, then we're |
2164 | just sending the monitor a newline, which is sometimes useful. */ | |
2165 | ||
774e5d7f | 2166 | monitor_printf ("%s\r", (args ? args : "")); |
7804e5bc | 2167 | |
774e5d7f | 2168 | resp_len = monitor_expect_prompt (buf, sizeof buf); |
a706069f SG |
2169 | |
2170 | fputs_unfiltered (buf, gdb_stdout); /* Output the response */ | |
51d6a954 RS |
2171 | } |
2172 | ||
1b552670 | 2173 | /* Convert hex digit A to a number. */ |
431b7d5f | 2174 | |
7e9576e0 | 2175 | #if 0 |
1b552670 RS |
2176 | static int |
2177 | from_hex (a) | |
2178 | int a; | |
2179 | { | |
1b552670 RS |
2180 | if (a >= '0' && a <= '9') |
2181 | return a - '0'; | |
2182 | if (a >= 'a' && a <= 'f') | |
2183 | return a - 'a' + 10; | |
2184 | if (a >= 'A' && a <= 'F') | |
2185 | return a - 'A' + 10; | |
1b552670 | 2186 | |
1265e2d8 | 2187 | error ("Reply contains invalid hex digit 0x%x", a); |
1b552670 | 2188 | } |
7e9576e0 MA |
2189 | #endif |
2190 | ||
2191 | char * | |
2192 | monitor_get_dev_name () | |
2193 | { | |
2194 | return dev_name; | |
2195 | } | |
1b552670 | 2196 | |
c8623080 AC |
2197 | static struct target_ops monitor_ops ; |
2198 | ||
2199 | static void init_base_monitor_ops(void) | |
774e5d7f | 2200 | { |
c8623080 AC |
2201 | monitor_ops.to_shortname = NULL; |
2202 | monitor_ops.to_longname = NULL; | |
2203 | monitor_ops.to_doc = NULL; | |
2204 | monitor_ops.to_open = NULL; | |
2205 | monitor_ops.to_close = monitor_close; | |
2206 | monitor_ops.to_attach = NULL; | |
2207 | monitor_ops.to_detach = monitor_detach; | |
2208 | monitor_ops.to_resume = monitor_resume; | |
2209 | monitor_ops.to_wait = monitor_wait; | |
2210 | monitor_ops.to_fetch_registers = monitor_fetch_registers; | |
2211 | monitor_ops.to_store_registers = monitor_store_registers; | |
2212 | monitor_ops.to_prepare_to_store = monitor_prepare_to_store; | |
2213 | monitor_ops.to_xfer_memory = monitor_xfer_memory; | |
2214 | monitor_ops.to_files_info = monitor_files_info; | |
2215 | monitor_ops.to_insert_breakpoint = monitor_insert_breakpoint; | |
2216 | monitor_ops.to_remove_breakpoint = monitor_remove_breakpoint; | |
2217 | monitor_ops.to_terminal_init = 0; | |
2218 | monitor_ops.to_terminal_inferior = 0; | |
2219 | monitor_ops.to_terminal_ours_for_output = 0; | |
2220 | monitor_ops.to_terminal_ours = 0; | |
2221 | monitor_ops.to_terminal_info = 0; | |
2222 | monitor_ops.to_kill = monitor_kill; | |
2223 | monitor_ops.to_load = monitor_load; | |
2224 | monitor_ops.to_lookup_symbol = 0; | |
2225 | monitor_ops.to_create_inferior = monitor_create_inferior; | |
2226 | monitor_ops.to_mourn_inferior = monitor_mourn_inferior; | |
2227 | monitor_ops.to_can_run = 0; | |
2228 | monitor_ops.to_notice_signals = 0; | |
2229 | monitor_ops.to_thread_alive = 0; | |
2230 | monitor_ops.to_stop = monitor_stop; | |
2231 | monitor_ops.to_stratum = process_stratum; | |
2232 | monitor_ops.DONT_USE = 0; | |
2233 | monitor_ops.to_has_all_memory = 1; | |
2234 | monitor_ops.to_has_memory = 1; | |
2235 | monitor_ops.to_has_stack = 1; | |
2236 | monitor_ops.to_has_registers = 1; | |
2237 | monitor_ops.to_has_execution = 1; | |
2238 | monitor_ops.to_sections = 0; | |
2239 | monitor_ops.to_sections_end = 0; | |
2240 | monitor_ops.to_magic = OPS_MAGIC ; | |
2241 | } /* init_monitor_ops */ | |
a706069f SG |
2242 | |
2243 | /* Init the target_ops structure pointed at by OPS */ | |
2244 | ||
2245 | void | |
2246 | init_monitor_ops (ops) | |
2247 | struct target_ops *ops; | |
2248 | { | |
2249 | memcpy (ops, &monitor_ops, sizeof monitor_ops); | |
2250 | } | |
2251 | ||
431b7d5f SS |
2252 | /* Define additional commands that are usually only used by monitors. */ |
2253 | ||
51d6a954 RS |
2254 | void |
2255 | _initialize_remote_monitors () | |
2256 | { | |
c8623080 | 2257 | init_base_monitor_ops() ; |
51d6a954 RS |
2258 | add_show_from_set (add_set_cmd ("hash", no_class, var_boolean, |
2259 | (char *)&hashmark, | |
2260 | "Set display of activity while downloading a file.\n\ | |
1265e2d8 | 2261 | When enabled, a hashmark \'#\' is displayed.", |
51d6a954 RS |
2262 | &setlist), |
2263 | &showlist); | |
2264 | ||
51d6a954 RS |
2265 | add_com ("monitor", class_obscure, monitor_command, |
2266 | "Send a command to the debug monitor."); | |
2267 | } |