| File: | src/gnu/usr.bin/binutils/gdb/remote-utils.c |
| Warning: | line 503, column 9 Value stored to 'swallowed_p' during its initialization is never read |
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| 1 | /* Generic support for remote debugging interfaces. |
| 2 | |
| 3 | Copyright 1993, 1994, 1995, 1996, 1998, 2000, 2001 |
| 4 | Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GDB. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 21 | Boston, MA 02111-1307, USA. */ |
| 22 | |
| 23 | /* This file actually contains two distinct logical "packages". They |
| 24 | are packaged together in this one file because they are typically |
| 25 | used together. |
| 26 | |
| 27 | The first package is an addition to the serial package. The |
| 28 | addition provides reading and writing with debugging output and |
| 29 | timeouts based on user settable variables. These routines are |
| 30 | intended to support serial port based remote backends. These |
| 31 | functions are prefixed with sr_. |
| 32 | |
| 33 | The second package is a collection of more or less generic |
| 34 | functions for use by remote backends. They support user settable |
| 35 | variables for debugging, retries, and the like. |
| 36 | |
| 37 | Todo: |
| 38 | |
| 39 | * a pass through mode a la kermit or telnet. |
| 40 | * autobaud. |
| 41 | * ask remote to change his baud rate. |
| 42 | */ |
| 43 | |
| 44 | #include <ctype.h> |
| 45 | |
| 46 | #include "defs.h" |
| 47 | #include "gdb_string.h" |
| 48 | #include "gdbcmd.h" |
| 49 | #include "target.h" |
| 50 | #include "serial.h" |
| 51 | #include "gdbcore.h" /* for exec_bfd */ |
| 52 | #include "inferior.h" /* for generic_mourn_inferior */ |
| 53 | #include "remote-utils.h" |
| 54 | #include "regcache.h" |
| 55 | |
| 56 | |
| 57 | void _initialize_sr_support (void); |
| 58 | |
| 59 | struct _sr_settings sr_settings = |
| 60 | { |
| 61 | 4, /* timeout: |
| 62 | remote-hms.c had 2 |
| 63 | remote-bug.c had "with a timeout of 2, we time out waiting for |
| 64 | the prompt after an s-record dump." |
| 65 | |
| 66 | remote.c had (2): This was 5 seconds, which is a long time to |
| 67 | sit and wait. Unless this is going though some terminal server |
| 68 | or multiplexer or other form of hairy serial connection, I |
| 69 | would think 2 seconds would be plenty. |
| 70 | */ |
| 71 | |
| 72 | 10, /* retries */ |
| 73 | NULL((void*)0), /* device */ |
| 74 | NULL((void*)0), /* descriptor */ |
| 75 | }; |
| 76 | |
| 77 | struct gr_settings *gr_settings = NULL((void*)0); |
| 78 | |
| 79 | static void usage (char *, char *); |
| 80 | static void sr_com (char *, int); |
| 81 | |
| 82 | static void |
| 83 | usage (char *proto, char *junk) |
| 84 | { |
| 85 | if (junk != NULL((void*)0)) |
| 86 | fprintf_unfiltered (gdb_stderr, "Unrecognized arguments: `%s'.\n", junk); |
| 87 | |
| 88 | error ("Usage: target %s [DEVICE [SPEED [DEBUG]]]\n\ |
| 89 | where DEVICE is the name of a device or HOST:PORT", proto); |
| 90 | |
| 91 | return; |
| 92 | } |
| 93 | |
| 94 | #define CHECKDONE(p, q){ if (q == p) { if (*p == '\0') return; else usage(proto, p); } } \ |
| 95 | { \ |
| 96 | if (q == p) \ |
| 97 | { \ |
| 98 | if (*p == '\0') \ |
| 99 | return; \ |
| 100 | else \ |
| 101 | usage(proto, p); \ |
| 102 | } \ |
| 103 | } |
| 104 | |
| 105 | void |
| 106 | sr_scan_args (char *proto, char *args) |
| 107 | { |
| 108 | int n; |
| 109 | char *p, *q; |
| 110 | |
| 111 | /* if no args, then nothing to do. */ |
| 112 | if (args == NULL((void*)0) || *args == '\0') |
| 113 | return; |
| 114 | |
| 115 | /* scan off white space. */ |
| 116 | for (p = args; isspace (*p); ++p);; |
| 117 | |
| 118 | /* find end of device name. */ |
| 119 | for (q = p; *q != '\0' && !isspace (*q); ++q);; |
| 120 | |
| 121 | /* check for missing or empty device name. */ |
| 122 | CHECKDONE (p, q){ if (q == p) { if (*p == '\0') return; else usage(proto, p); } }; |
| 123 | sr_set_device (savestring (p, q - p)){ if (sr_settings.device) xfree (sr_settings.device); sr_settings .device = (savestring (p, q - p)); }; |
| 124 | |
| 125 | /* look for baud rate. */ |
| 126 | n = strtol (q, &p, 10); |
| 127 | |
| 128 | /* check for missing or empty baud rate. */ |
| 129 | CHECKDONE (p, q){ if (q == p) { if (*p == '\0') return; else usage(proto, p); } }; |
| 130 | baud_rate = n; |
| 131 | |
| 132 | /* look for debug value. */ |
| 133 | n = strtol (p, &q, 10); |
| 134 | |
| 135 | /* check for missing or empty debug value. */ |
| 136 | CHECKDONE (p, q){ if (q == p) { if (*p == '\0') return; else usage(proto, p); } }; |
| 137 | sr_set_debug (n)(remote_debug = (n)); |
| 138 | |
| 139 | /* scan off remaining white space. */ |
| 140 | for (p = q; isspace (*p); ++p);; |
| 141 | |
| 142 | /* if not end of string, then there's unrecognized junk. */ |
| 143 | if (*p != '\0') |
| 144 | usage (proto, p); |
| 145 | |
| 146 | return; |
| 147 | } |
| 148 | |
| 149 | void |
| 150 | gr_generic_checkin (void) |
| 151 | { |
| 152 | sr_write_cr (""); |
| 153 | gr_expect_prompt ()sr_expect((gr_settings->prompt)); |
| 154 | } |
| 155 | |
| 156 | void |
| 157 | gr_open (char *args, int from_tty, struct gr_settings *gr) |
| 158 | { |
| 159 | target_preopen (from_tty); |
| 160 | sr_scan_args (gr->ops->to_shortname, args); |
| 161 | unpush_target (gr->ops); |
| 162 | |
| 163 | gr_settings = gr; |
| 164 | |
| 165 | if (sr_get_desc ()(sr_settings.desc) != NULL((void*)0)) |
| 166 | gr_close (0); |
| 167 | |
| 168 | /* If no args are specified, then we use the device specified by a |
| 169 | previous command or "set remotedevice". But if there is no |
| 170 | device, better stop now, not dump core. */ |
| 171 | |
| 172 | if (sr_get_device ()(sr_settings.device) == NULL((void*)0)) |
| 173 | usage (gr->ops->to_shortname, NULL((void*)0)); |
| 174 | |
| 175 | sr_set_desc (serial_open (sr_get_device ()))(sr_settings.desc = (serial_open ((sr_settings.device)))); |
| 176 | if (!sr_get_desc ()(sr_settings.desc)) |
| 177 | perror_with_name ((char *) sr_get_device ()(sr_settings.device)); |
| 178 | |
| 179 | if (baud_rate != -1) |
| 180 | { |
| 181 | if (serial_setbaudrate (sr_get_desc ()(sr_settings.desc), baud_rate) != 0) |
| 182 | { |
| 183 | serial_close (sr_get_desc ()(sr_settings.desc)); |
| 184 | perror_with_name (sr_get_device ()(sr_settings.device)); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | serial_raw (sr_get_desc ()(sr_settings.desc)); |
| 189 | |
| 190 | /* If there is something sitting in the buffer we might take it as a |
| 191 | response to a command, which would be bad. */ |
| 192 | serial_flush_input (sr_get_desc ()(sr_settings.desc)); |
| 193 | |
| 194 | /* default retries */ |
| 195 | if (sr_get_retries ()(sr_settings.retries) == 0) |
| 196 | sr_set_retries (1)(sr_settings.retries = (1)); |
| 197 | |
| 198 | /* default clear breakpoint function */ |
| 199 | if (gr_settings->clear_all_breakpoints == NULL((void*)0)) |
| 200 | gr_settings->clear_all_breakpoints = remove_breakpoints; |
| 201 | |
| 202 | if (from_tty) |
| 203 | { |
| 204 | printf_filtered ("Remote debugging using `%s'", sr_get_device ()(sr_settings.device)); |
| 205 | if (baud_rate != -1) |
| 206 | printf_filtered (" at baud rate of %d", |
| 207 | baud_rate); |
| 208 | printf_filtered ("\n"); |
| 209 | } |
| 210 | |
| 211 | push_target (gr->ops); |
| 212 | gr_checkin ()((gr_settings->checkin)()); |
| 213 | gr_clear_all_breakpoints ()((gr_settings->clear_all_breakpoints)()); |
| 214 | return; |
| 215 | } |
| 216 | |
| 217 | /* Read a character from the remote system masking it down to 7 bits |
| 218 | and doing all the fancy timeout stuff. */ |
| 219 | |
| 220 | int |
| 221 | sr_readchar (void) |
| 222 | { |
| 223 | int buf; |
| 224 | |
| 225 | buf = serial_readchar (sr_get_desc ()(sr_settings.desc), sr_get_timeout ()(sr_settings.timeout)); |
| 226 | |
| 227 | if (buf == SERIAL_TIMEOUT) |
| 228 | error ("Timeout reading from remote system."); |
| 229 | |
| 230 | if (sr_get_debug ()(remote_debug) > 0) |
| 231 | printf_unfiltered ("%c", buf); |
| 232 | |
| 233 | return buf & 0x7f; |
| 234 | } |
| 235 | |
| 236 | int |
| 237 | sr_pollchar (void) |
| 238 | { |
| 239 | int buf; |
| 240 | |
| 241 | buf = serial_readchar (sr_get_desc ()(sr_settings.desc), 0); |
| 242 | if (buf == SERIAL_TIMEOUT) |
| 243 | buf = 0; |
| 244 | if (sr_get_debug ()(remote_debug) > 0) |
| 245 | { |
| 246 | if (buf) |
| 247 | printf_unfiltered ("%c", buf); |
| 248 | else |
| 249 | printf_unfiltered ("<empty character poll>"); |
| 250 | } |
| 251 | |
| 252 | return buf & 0x7f; |
| 253 | } |
| 254 | |
| 255 | /* Keep discarding input from the remote system, until STRING is found. |
| 256 | Let the user break out immediately. */ |
| 257 | void |
| 258 | sr_expect (char *string) |
| 259 | { |
| 260 | char *p = string; |
| 261 | |
| 262 | immediate_quit++; |
| 263 | while (1) |
| 264 | { |
| 265 | if (sr_readchar () == *p) |
| 266 | { |
| 267 | p++; |
| 268 | if (*p == '\0') |
| 269 | { |
| 270 | immediate_quit--; |
| 271 | return; |
| 272 | } |
| 273 | } |
| 274 | else |
| 275 | p = string; |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | void |
| 280 | sr_write (char *a, int l) |
| 281 | { |
| 282 | int i; |
| 283 | |
| 284 | if (serial_write (sr_get_desc ()(sr_settings.desc), a, l) != 0) |
| 285 | perror_with_name ("sr_write: Error writing to remote"); |
| 286 | |
| 287 | if (sr_get_debug ()(remote_debug) > 0) |
| 288 | for (i = 0; i < l; i++) |
| 289 | printf_unfiltered ("%c", a[i]); |
| 290 | |
| 291 | return; |
| 292 | } |
| 293 | |
| 294 | void |
| 295 | sr_write_cr (char *s) |
| 296 | { |
| 297 | sr_write (s, strlen (s)); |
| 298 | sr_write ("\r", 1); |
| 299 | return; |
| 300 | } |
| 301 | |
| 302 | int |
| 303 | sr_timed_read (char *buf, int n) |
| 304 | { |
| 305 | int i; |
| 306 | char c; |
| 307 | |
| 308 | i = 0; |
| 309 | while (i < n) |
| 310 | { |
| 311 | c = sr_readchar (); |
| 312 | |
| 313 | if (c == 0) |
| 314 | return i; |
| 315 | buf[i] = c; |
| 316 | i++; |
| 317 | |
| 318 | } |
| 319 | return i; |
| 320 | } |
| 321 | |
| 322 | /* Get a hex digit from the remote system & return its value. If |
| 323 | ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ |
| 324 | |
| 325 | int |
| 326 | sr_get_hex_digit (int ignore_space) |
| 327 | { |
| 328 | int ch; |
| 329 | |
| 330 | while (1) |
| 331 | { |
| 332 | ch = sr_readchar (); |
| 333 | if (ch >= '0' && ch <= '9') |
| 334 | return ch - '0'; |
| 335 | else if (ch >= 'A' && ch <= 'F') |
| 336 | return ch - 'A' + 10; |
| 337 | else if (ch >= 'a' && ch <= 'f') |
| 338 | return ch - 'a' + 10; |
| 339 | else if (ch != ' ' || !ignore_space) |
| 340 | { |
| 341 | gr_expect_prompt ()sr_expect((gr_settings->prompt)); |
| 342 | error ("Invalid hex digit from remote system."); |
| 343 | } |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | /* Get a byte from the remote and put it in *BYT. Accept any number |
| 348 | leading spaces. */ |
| 349 | void |
| 350 | sr_get_hex_byte (char *byt) |
| 351 | { |
| 352 | int val; |
| 353 | |
| 354 | val = sr_get_hex_digit (1) << 4; |
| 355 | val |= sr_get_hex_digit (0); |
| 356 | *byt = val; |
| 357 | } |
| 358 | |
| 359 | /* Read a 32-bit hex word from the remote, preceded by a space */ |
| 360 | long |
| 361 | sr_get_hex_word (void) |
| 362 | { |
| 363 | long val; |
| 364 | int j; |
| 365 | |
| 366 | val = 0; |
| 367 | for (j = 0; j < 8; j++) |
| 368 | val = (val << 4) + sr_get_hex_digit (j == 0); |
| 369 | return val; |
| 370 | } |
| 371 | |
| 372 | /* Put a command string, in args, out to the remote. The remote is assumed to |
| 373 | be in raw mode, all writing/reading done through desc. |
| 374 | Ouput from the remote is placed on the users terminal until the |
| 375 | prompt from the remote is seen. |
| 376 | FIXME: Can't handle commands that take input. */ |
| 377 | |
| 378 | static void |
| 379 | sr_com (char *args, int fromtty) |
| 380 | { |
| 381 | sr_check_open (){ if (!(sr_settings.desc != ((void*)0))) error ("Remote device not open" ); }; |
| 382 | |
| 383 | if (!args) |
| 384 | return; |
| 385 | |
| 386 | /* Clear all input so only command relative output is displayed */ |
| 387 | |
| 388 | sr_write_cr (args); |
| 389 | sr_write ("\030", 1); |
| 390 | registers_changed (); |
| 391 | gr_expect_prompt ()sr_expect((gr_settings->prompt)); |
| 392 | } |
| 393 | |
| 394 | void |
| 395 | gr_close (int quitting) |
| 396 | { |
| 397 | gr_clear_all_breakpoints ()((gr_settings->clear_all_breakpoints)()); |
| 398 | |
| 399 | if (sr_is_open ()(sr_settings.desc != ((void*)0))) |
| 400 | { |
| 401 | serial_close (sr_get_desc ()(sr_settings.desc)); |
| 402 | sr_set_desc (NULL)(sr_settings.desc = (((void*)0))); |
| 403 | } |
| 404 | |
| 405 | return; |
| 406 | } |
| 407 | |
| 408 | /* gr_detach() |
| 409 | takes a program previously attached to and detaches it. |
| 410 | We better not have left any breakpoints |
| 411 | in the program or it'll die when it hits one. |
| 412 | Close the open connection to the remote debugger. |
| 413 | Use this when you want to detach and do something else |
| 414 | with your gdb. */ |
| 415 | |
| 416 | void |
| 417 | gr_detach (char *args, int from_tty) |
| 418 | { |
| 419 | if (args) |
| 420 | error ("Argument given to \"detach\" when remotely debugging."); |
| 421 | |
| 422 | if (sr_is_open ()(sr_settings.desc != ((void*)0))) |
| 423 | gr_clear_all_breakpoints ()((gr_settings->clear_all_breakpoints)()); |
| 424 | |
| 425 | pop_target (); |
| 426 | if (from_tty) |
| 427 | puts_filtered ("Ending remote debugging.\n"); |
| 428 | |
| 429 | return; |
| 430 | } |
| 431 | |
| 432 | void |
| 433 | gr_files_info (struct target_ops *ops) |
| 434 | { |
| 435 | #ifdef __GO32__ |
| 436 | printf_filtered ("\tAttached to DOS asynctsr\n"); |
| 437 | #else |
| 438 | printf_filtered ("\tAttached to %s", sr_get_device ()(sr_settings.device)); |
| 439 | if (baud_rate != -1) |
| 440 | printf_filtered ("at %d baud", baud_rate); |
| 441 | printf_filtered ("\n"); |
| 442 | #endif |
| 443 | |
| 444 | if (exec_bfd) |
| 445 | { |
| 446 | printf_filtered ("\tand running program %s\n", |
| 447 | bfd_get_filename (exec_bfd)((char *) (exec_bfd)->filename)); |
| 448 | } |
| 449 | printf_filtered ("\tusing the %s protocol.\n", ops->to_shortname); |
| 450 | } |
| 451 | |
| 452 | void |
| 453 | gr_mourn (void) |
| 454 | { |
| 455 | gr_clear_all_breakpoints ()((gr_settings->clear_all_breakpoints)()); |
| 456 | unpush_target (gr_get_ops ()(gr_settings->ops)); |
| 457 | generic_mourn_inferior (); |
| 458 | } |
| 459 | |
| 460 | void |
| 461 | gr_kill (void) |
| 462 | { |
| 463 | return; |
| 464 | } |
| 465 | |
| 466 | /* This is called not only when we first attach, but also when the |
| 467 | user types "run" after having attached. */ |
| 468 | void |
| 469 | gr_create_inferior (char *execfile, char *args, char **env) |
| 470 | { |
| 471 | int entry_pt; |
| 472 | |
| 473 | if (args && *args) |
| 474 | error ("Can't pass arguments to remote process."); |
| 475 | |
| 476 | if (execfile == 0 || exec_bfd == 0) |
| 477 | error ("No executable file specified"); |
| 478 | |
| 479 | entry_pt = (int) bfd_get_start_address (exec_bfd)((exec_bfd)->start_address); |
| 480 | sr_check_open (){ if (!(sr_settings.desc != ((void*)0))) error ("Remote device not open" ); }; |
| 481 | |
| 482 | gr_kill (); |
| 483 | gr_clear_all_breakpoints ()((gr_settings->clear_all_breakpoints)()); |
| 484 | |
| 485 | init_wait_for_inferior (); |
| 486 | gr_checkin ()((gr_settings->checkin)()); |
| 487 | |
| 488 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
| 489 | proceed (entry_pt, -1, 0); |
| 490 | } |
| 491 | |
| 492 | /* Given a null terminated list of strings LIST, read the input until we find one of |
| 493 | them. Return the index of the string found or -1 on error. '?' means match |
| 494 | any single character. Note that with the algorithm we use, the initial |
| 495 | character of the string cannot recur in the string, or we will not find some |
| 496 | cases of the string in the input. If PASSTHROUGH is non-zero, then |
| 497 | pass non-matching data on. */ |
| 498 | |
| 499 | int |
| 500 | gr_multi_scan (char *list[], int passthrough) |
| 501 | { |
| 502 | char *swallowed = NULL((void*)0); /* holding area */ |
| 503 | char *swallowed_p = swallowed; /* Current position in swallowed. */ |
Value stored to 'swallowed_p' during its initialization is never read | |
| 504 | int ch; |
| 505 | int ch_handled; |
| 506 | int i; |
| 507 | int string_count; |
| 508 | int max_length; |
| 509 | char **plist; |
| 510 | |
| 511 | /* Look through the strings. Count them. Find the largest one so we can |
| 512 | allocate a holding area. */ |
| 513 | |
| 514 | for (max_length = string_count = i = 0; |
| 515 | list[i] != NULL((void*)0); |
| 516 | ++i, ++string_count) |
| 517 | { |
| 518 | int length = strlen (list[i]); |
| 519 | |
| 520 | if (length > max_length) |
| 521 | max_length = length; |
| 522 | } |
| 523 | |
| 524 | /* if we have no strings, then something is wrong. */ |
| 525 | if (string_count == 0) |
| 526 | return (-1); |
| 527 | |
| 528 | /* otherwise, we will need a holding area big enough to hold almost two |
| 529 | copies of our largest string. */ |
| 530 | swallowed_p = swallowed = alloca (max_length << 1)__builtin_alloca(max_length << 1); |
| 531 | |
| 532 | /* and a list of pointers to current scan points. */ |
| 533 | plist = (char **) alloca (string_count * sizeof (*plist))__builtin_alloca(string_count * sizeof (*plist)); |
| 534 | |
| 535 | /* and initialize */ |
| 536 | for (i = 0; i < string_count; ++i) |
| 537 | plist[i] = list[i]; |
| 538 | |
| 539 | for (ch = sr_readchar (); /* loop forever */ ; ch = sr_readchar ()) |
| 540 | { |
| 541 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; /* Let user quit and leave process running */ |
| 542 | ch_handled = 0; |
| 543 | |
| 544 | for (i = 0; i < string_count; ++i) |
| 545 | { |
| 546 | if (ch == *plist[i] || *plist[i] == '?') |
| 547 | { |
| 548 | ++plist[i]; |
| 549 | if (*plist[i] == '\0') |
| 550 | return (i); |
| 551 | |
| 552 | if (!ch_handled) |
| 553 | *swallowed_p++ = ch; |
| 554 | |
| 555 | ch_handled = 1; |
| 556 | } |
| 557 | else |
| 558 | plist[i] = list[i]; |
| 559 | } |
| 560 | |
| 561 | if (!ch_handled) |
| 562 | { |
| 563 | char *p; |
| 564 | |
| 565 | /* Print out any characters which have been swallowed. */ |
| 566 | if (passthrough) |
| 567 | { |
| 568 | for (p = swallowed; p < swallowed_p; ++p) |
| 569 | fputc_unfiltered (*p, gdb_stdout); |
| 570 | |
| 571 | fputc_unfiltered (ch, gdb_stdout); |
| 572 | } |
| 573 | |
| 574 | swallowed_p = swallowed; |
| 575 | } |
| 576 | } |
| 577 | #if 0 |
| 578 | /* Never reached. */ |
| 579 | return (-1); |
| 580 | #endif |
| 581 | } |
| 582 | |
| 583 | /* Get ready to modify the registers array. On machines which store |
| 584 | individual registers, this doesn't need to do anything. On machines |
| 585 | which store all the registers in one fell swoop, this makes sure |
| 586 | that registers contains all the registers from the program being |
| 587 | debugged. */ |
| 588 | |
| 589 | void |
| 590 | gr_prepare_to_store (void) |
| 591 | { |
| 592 | /* Do nothing, since we assume we can store individual regs */ |
| 593 | } |
| 594 | |
| 595 | void |
| 596 | _initialize_sr_support (void) |
| 597 | { |
| 598 | /* FIXME-now: if target is open... */ |
| 599 | deprecated_add_show_from_set |
| 600 | (add_set_cmd ("remotedevice", no_class, |
| 601 | var_filename, (char *) &sr_settings.device, |
| 602 | "Set device for remote serial I/O.\n\ |
| 603 | This device is used as the serial port when debugging using remote\n\ |
| 604 | targets.", &setlist), |
| 605 | &showlist); |
| 606 | |
| 607 | add_com ("remote <command>", class_obscure, sr_com, |
| 608 | "Send a command to the remote monitor."); |
| 609 | |
| 610 | } |