| 1 | /* Remote debugging interface for Hitachi HMS Monitor Version 1.0 |
| 2 | Copyright 1992 Free Software Foundation, Inc. |
| 3 | Contributed by Cygnus Support. Written by Steve Chamberlain |
| 4 | (sac@cygnus.com). |
| 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 21 | |
| 22 | #include "defs.h" |
| 23 | #include "inferior.h" |
| 24 | #include "wait.h" |
| 25 | #include "value.h" |
| 26 | #include <string.h> |
| 27 | #include <ctype.h> |
| 28 | #include <fcntl.h> |
| 29 | #include <signal.h> |
| 30 | #include <setjmp.h> |
| 31 | #include <errno.h> |
| 32 | #include "terminal.h" |
| 33 | #include "target.h" |
| 34 | #include "gdbcore.h" |
| 35 | #include "serial.h" |
| 36 | |
| 37 | /* External data declarations */ |
| 38 | extern int stop_soon_quietly; /* for wait_for_inferior */ |
| 39 | |
| 40 | /* Forward data declarations */ |
| 41 | extern struct target_ops hms_ops; /* Forward declaration */ |
| 42 | |
| 43 | /* Forward function declarations */ |
| 44 | static void hms_fetch_registers (); |
| 45 | static int hms_store_registers (); |
| 46 | static void hms_close (); |
| 47 | static int hms_clear_breakpoints (); |
| 48 | |
| 49 | extern struct target_ops hms_ops; |
| 50 | |
| 51 | static int quiet = 1; |
| 52 | |
| 53 | |
| 54 | serial_t desc; |
| 55 | |
| 56 | /***********************************************************************/ |
| 57 | /* Caching stuff stolen from remote-nindy.c */ |
| 58 | |
| 59 | /* The data cache records all the data read from the remote machine |
| 60 | since the last time it stopped. |
| 61 | |
| 62 | Each cache block holds LINE_SIZE bytes of data |
| 63 | starting at a multiple-of-LINE_SIZE address. */ |
| 64 | |
| 65 | #define LINE_SIZE_POWER 4 |
| 66 | #define LINE_SIZE (1<<LINE_SIZE_POWER) /* eg 1<<3 == 8 */ |
| 67 | #define LINE_SIZE_MASK ((LINE_SIZE-1)) /* eg 7*2+1= 111*/ |
| 68 | #define DCACHE_SIZE 64 /* Number of cache blocks */ |
| 69 | #define XFORM(x) ((x&LINE_SIZE_MASK)>>2) |
| 70 | struct dcache_block |
| 71 | { |
| 72 | struct dcache_block *next, *last; |
| 73 | unsigned int addr; /* Address for which data is recorded. */ |
| 74 | int data[LINE_SIZE / sizeof (int)]; |
| 75 | }; |
| 76 | |
| 77 | struct dcache_block dcache_free, dcache_valid; |
| 78 | |
| 79 | /* Free all the data cache blocks, thus discarding all cached data. */ |
| 80 | static |
| 81 | void |
| 82 | dcache_flush () |
| 83 | { |
| 84 | register struct dcache_block *db; |
| 85 | |
| 86 | while ((db = dcache_valid.next) != &dcache_valid) |
| 87 | { |
| 88 | remque (db); |
| 89 | insque (db, &dcache_free); |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | /* |
| 94 | * If addr is present in the dcache, return the address of the block |
| 95 | * containing it. |
| 96 | */ |
| 97 | static |
| 98 | struct dcache_block * |
| 99 | dcache_hit (addr) |
| 100 | unsigned int addr; |
| 101 | { |
| 102 | register struct dcache_block *db; |
| 103 | |
| 104 | if (addr & 3) |
| 105 | abort (); |
| 106 | |
| 107 | /* Search all cache blocks for one that is at this address. */ |
| 108 | db = dcache_valid.next; |
| 109 | while (db != &dcache_valid) |
| 110 | { |
| 111 | if ((addr & ~LINE_SIZE_MASK) == db->addr) |
| 112 | return db; |
| 113 | db = db->next; |
| 114 | } |
| 115 | return NULL; |
| 116 | } |
| 117 | |
| 118 | /* Return the int data at address ADDR in dcache block DC. */ |
| 119 | static |
| 120 | int |
| 121 | dcache_value (db, addr) |
| 122 | struct dcache_block *db; |
| 123 | unsigned int addr; |
| 124 | { |
| 125 | if (addr & 3) |
| 126 | abort (); |
| 127 | return (db->data[XFORM (addr)]); |
| 128 | } |
| 129 | |
| 130 | /* Get a free cache block, put or keep it on the valid list, |
| 131 | and return its address. The caller should store into the block |
| 132 | the address and data that it describes, then remque it from the |
| 133 | free list and insert it into the valid list. This procedure |
| 134 | prevents errors from creeping in if a ninMemGet is interrupted |
| 135 | (which used to put garbage blocks in the valid list...). */ |
| 136 | static |
| 137 | struct dcache_block * |
| 138 | dcache_alloc () |
| 139 | { |
| 140 | register struct dcache_block *db; |
| 141 | |
| 142 | if ((db = dcache_free.next) == &dcache_free) |
| 143 | { |
| 144 | /* If we can't get one from the free list, take last valid and put |
| 145 | it on the free list. */ |
| 146 | db = dcache_valid.last; |
| 147 | remque (db); |
| 148 | insque (db, &dcache_free); |
| 149 | } |
| 150 | |
| 151 | remque (db); |
| 152 | insque (db, &dcache_valid); |
| 153 | return (db); |
| 154 | } |
| 155 | |
| 156 | /* Return the contents of the word at address ADDR in the remote machine, |
| 157 | using the data cache. */ |
| 158 | static |
| 159 | int |
| 160 | dcache_fetch (addr) |
| 161 | CORE_ADDR addr; |
| 162 | { |
| 163 | register struct dcache_block *db; |
| 164 | |
| 165 | db = dcache_hit (addr); |
| 166 | if (db == 0) |
| 167 | { |
| 168 | db = dcache_alloc (); |
| 169 | immediate_quit++; |
| 170 | hms_read_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE); |
| 171 | immediate_quit--; |
| 172 | db->addr = addr & ~LINE_SIZE_MASK; |
| 173 | remque (db); /* Off the free list */ |
| 174 | insque (db, &dcache_valid); /* On the valid list */ |
| 175 | } |
| 176 | return (dcache_value (db, addr)); |
| 177 | } |
| 178 | |
| 179 | /* Write the word at ADDR both in the data cache and in the remote machine. */ |
| 180 | static void |
| 181 | dcache_poke (addr, data) |
| 182 | CORE_ADDR addr; |
| 183 | int data; |
| 184 | { |
| 185 | register struct dcache_block *db; |
| 186 | |
| 187 | /* First make sure the word is IN the cache. DB is its cache block. */ |
| 188 | db = dcache_hit (addr); |
| 189 | if (db == 0) |
| 190 | { |
| 191 | db = dcache_alloc (); |
| 192 | immediate_quit++; |
| 193 | hms_write_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE); |
| 194 | immediate_quit--; |
| 195 | db->addr = addr & ~LINE_SIZE_MASK; |
| 196 | remque (db); /* Off the free list */ |
| 197 | insque (db, &dcache_valid); /* On the valid list */ |
| 198 | } |
| 199 | |
| 200 | /* Modify the word in the cache. */ |
| 201 | db->data[XFORM (addr)] = data; |
| 202 | |
| 203 | /* Send the changed word. */ |
| 204 | immediate_quit++; |
| 205 | hms_write_inferior_memory (addr, (unsigned char *) &data, 4); |
| 206 | immediate_quit--; |
| 207 | } |
| 208 | |
| 209 | /* The cache itself. */ |
| 210 | struct dcache_block the_cache[DCACHE_SIZE]; |
| 211 | |
| 212 | /* Initialize the data cache. */ |
| 213 | static void |
| 214 | dcache_init () |
| 215 | { |
| 216 | register i; |
| 217 | register struct dcache_block *db; |
| 218 | |
| 219 | db = the_cache; |
| 220 | dcache_free.next = dcache_free.last = &dcache_free; |
| 221 | dcache_valid.next = dcache_valid.last = &dcache_valid; |
| 222 | for (i = 0; i < DCACHE_SIZE; i++, db++) |
| 223 | insque (db, &dcache_free); |
| 224 | } |
| 225 | |
| 226 | /*********************************************************************** |
| 227 | * I/O stuff stolen from remote-eb.c |
| 228 | ***********************************************************************/ |
| 229 | |
| 230 | static int timeout = 2; |
| 231 | |
| 232 | static const char *dev_name; |
| 233 | |
| 234 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that |
| 235 | hms_open knows that we don't have a file open when the program |
| 236 | starts. */ |
| 237 | |
| 238 | int is_open = 0; |
| 239 | int |
| 240 | check_open () |
| 241 | { |
| 242 | if (!is_open) |
| 243 | { |
| 244 | error ("remote device not open"); |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | #define ON 1 |
| 249 | #define OFF 0 |
| 250 | |
| 251 | /* Read a character from the remote system, doing all the fancy |
| 252 | timeout stuff. */ |
| 253 | static int |
| 254 | readchar () |
| 255 | { |
| 256 | int buf; |
| 257 | |
| 258 | buf = SERIAL_READCHAR (desc, timeout); |
| 259 | |
| 260 | if (buf == SERIAL_TIMEOUT) |
| 261 | error ("Timeout reading from remote system."); |
| 262 | |
| 263 | if (!quiet) |
| 264 | printf ("%c", buf); |
| 265 | |
| 266 | return buf & 0x7f; |
| 267 | } |
| 268 | |
| 269 | static int |
| 270 | readchar_nofail () |
| 271 | { |
| 272 | int buf; |
| 273 | |
| 274 | buf = SERIAL_READCHAR (desc, timeout); |
| 275 | if (buf == SERIAL_TIMEOUT) |
| 276 | buf = 0; |
| 277 | if (!quiet) |
| 278 | printf ("%c", buf); |
| 279 | |
| 280 | return buf & 0x7f; |
| 281 | |
| 282 | } |
| 283 | |
| 284 | /* Keep discarding input from the remote system, until STRING is found. |
| 285 | Let the user break out immediately. */ |
| 286 | static void |
| 287 | expect (string) |
| 288 | char *string; |
| 289 | { |
| 290 | char *p = string; |
| 291 | |
| 292 | immediate_quit = 1; |
| 293 | while (1) |
| 294 | { |
| 295 | if (readchar () == *p) |
| 296 | { |
| 297 | p++; |
| 298 | if (*p == '\0') |
| 299 | { |
| 300 | immediate_quit = 0; |
| 301 | return; |
| 302 | } |
| 303 | } |
| 304 | else |
| 305 | p = string; |
| 306 | } |
| 307 | } |
| 308 | |
| 309 | /* Keep discarding input until we see the hms prompt. |
| 310 | |
| 311 | The convention for dealing with the prompt is that you |
| 312 | o give your command |
| 313 | o *then* wait for the prompt. |
| 314 | |
| 315 | Thus the last thing that a procedure does with the serial line |
| 316 | will be an expect_prompt(). Exception: hms_resume does not |
| 317 | wait for the prompt, because the terminal is being handed over |
| 318 | to the inferior. However, the next thing which happens after that |
| 319 | is a hms_wait which does wait for the prompt. |
| 320 | Note that this includes abnormal exit, e.g. error(). This is |
| 321 | necessary to prevent getting into states from which we can't |
| 322 | recover. */ |
| 323 | static void |
| 324 | expect_prompt () |
| 325 | { |
| 326 | expect ("HMS>"); |
| 327 | } |
| 328 | |
| 329 | /* Get a hex digit from the remote system & return its value. |
| 330 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ |
| 331 | static int |
| 332 | get_hex_digit (ignore_space) |
| 333 | int ignore_space; |
| 334 | { |
| 335 | int ch; |
| 336 | |
| 337 | while (1) |
| 338 | { |
| 339 | ch = readchar (); |
| 340 | if (ch >= '0' && ch <= '9') |
| 341 | return ch - '0'; |
| 342 | else if (ch >= 'A' && ch <= 'F') |
| 343 | return ch - 'A' + 10; |
| 344 | else if (ch >= 'a' && ch <= 'f') |
| 345 | return ch - 'a' + 10; |
| 346 | else if (ch == ' ' && ignore_space) |
| 347 | ; |
| 348 | else |
| 349 | { |
| 350 | expect_prompt (); |
| 351 | error ("Invalid hex digit from remote system."); |
| 352 | } |
| 353 | } |
| 354 | } |
| 355 | |
| 356 | /* Get a byte from hms_desc and put it in *BYT. Accept any number |
| 357 | leading spaces. */ |
| 358 | static void |
| 359 | get_hex_byte (byt) |
| 360 | char *byt; |
| 361 | { |
| 362 | int val; |
| 363 | |
| 364 | val = get_hex_digit (1) << 4; |
| 365 | val |= get_hex_digit (0); |
| 366 | *byt = val; |
| 367 | } |
| 368 | |
| 369 | /* Read a 32-bit hex word from the hms, preceded by a space */ |
| 370 | static long |
| 371 | get_hex_word () |
| 372 | { |
| 373 | long val; |
| 374 | int j; |
| 375 | |
| 376 | val = 0; |
| 377 | for (j = 0; j < 8; j++) |
| 378 | val = (val << 4) + get_hex_digit (j == 0); |
| 379 | return val; |
| 380 | } |
| 381 | |
| 382 | /* Called when SIGALRM signal sent due to alarm() timeout. */ |
| 383 | |
| 384 | /* Number of SIGTRAPs we need to simulate. That is, the next |
| 385 | NEED_ARTIFICIAL_TRAP calls to hms_wait should just return |
| 386 | SIGTRAP without actually waiting for anything. */ |
| 387 | |
| 388 | static int need_artificial_trap = 0; |
| 389 | |
| 390 | void |
| 391 | hms_kill (arg, from_tty) |
| 392 | char *arg; |
| 393 | int from_tty; |
| 394 | { |
| 395 | |
| 396 | } |
| 397 | |
| 398 | /* |
| 399 | * Download a file specified in 'args', to the hms. |
| 400 | */ |
| 401 | static void |
| 402 | hms_load (args, fromtty) |
| 403 | char *args; |
| 404 | int fromtty; |
| 405 | { |
| 406 | bfd *abfd; |
| 407 | asection *s; |
| 408 | int n; |
| 409 | char buffer[1024]; |
| 410 | |
| 411 | check_open (); |
| 412 | |
| 413 | dcache_flush (); |
| 414 | inferior_pid = 0; |
| 415 | abfd = bfd_openr (args, 0); |
| 416 | if (!abfd) |
| 417 | { |
| 418 | printf_filtered ("Unable to open file %s\n", args); |
| 419 | return; |
| 420 | } |
| 421 | |
| 422 | if (bfd_check_format (abfd, bfd_object) == 0) |
| 423 | { |
| 424 | printf_filtered ("File is not an object file\n"); |
| 425 | return; |
| 426 | } |
| 427 | |
| 428 | s = abfd->sections; |
| 429 | while (s != (asection *) NULL) |
| 430 | { |
| 431 | if (s->flags & SEC_LOAD) |
| 432 | { |
| 433 | int i; |
| 434 | |
| 435 | #define DELTA 1024 |
| 436 | char *buffer = xmalloc (DELTA); |
| 437 | |
| 438 | printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma, s->vma + s->_raw_size); |
| 439 | for (i = 0; i < s->_raw_size; i += DELTA) |
| 440 | { |
| 441 | int delta = DELTA; |
| 442 | |
| 443 | if (delta > s->_raw_size - i) |
| 444 | delta = s->_raw_size - i; |
| 445 | |
| 446 | bfd_get_section_contents (abfd, s, buffer, i, delta); |
| 447 | hms_write_inferior_memory (s->vma + i, buffer, delta); |
| 448 | printf_filtered ("*"); |
| 449 | fflush (stdout); |
| 450 | } |
| 451 | printf_filtered ("\n"); |
| 452 | free (buffer); |
| 453 | } |
| 454 | s = s->next; |
| 455 | } |
| 456 | sprintf (buffer, "r PC=%x", abfd->start_address); |
| 457 | hms_write_cr (buffer); |
| 458 | expect_prompt (); |
| 459 | } |
| 460 | |
| 461 | /* This is called not only when we first attach, but also when the |
| 462 | user types "run" after having attached. */ |
| 463 | void |
| 464 | hms_create_inferior (execfile, args, env) |
| 465 | char *execfile; |
| 466 | char *args; |
| 467 | char **env; |
| 468 | { |
| 469 | int entry_pt; |
| 470 | char buffer[100]; |
| 471 | |
| 472 | if (args && *args) |
| 473 | error ("Can't pass arguments to remote hms process."); |
| 474 | |
| 475 | if (execfile == 0 || exec_bfd == 0) |
| 476 | error ("No exec file specified"); |
| 477 | |
| 478 | entry_pt = (int) bfd_get_start_address (exec_bfd); |
| 479 | check_open (); |
| 480 | |
| 481 | hms_kill (NULL, NULL); |
| 482 | hms_clear_breakpoints (); |
| 483 | init_wait_for_inferior (); |
| 484 | hms_write_cr (""); |
| 485 | expect_prompt (); |
| 486 | |
| 487 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
| 488 | proceed (entry_pt, -1, 0); |
| 489 | } |
| 490 | |
| 491 | /* Open a connection to a remote debugger. |
| 492 | NAME is the filename used for communication, then a space, |
| 493 | then the baud rate. |
| 494 | */ |
| 495 | |
| 496 | static char * |
| 497 | find_end_of_word (s) |
| 498 | char *s; |
| 499 | { |
| 500 | while (*s && !isspace (*s)) |
| 501 | s++; |
| 502 | return s; |
| 503 | } |
| 504 | |
| 505 | static char * |
| 506 | get_word (p) |
| 507 | char **p; |
| 508 | { |
| 509 | char *s = *p; |
| 510 | char *word; |
| 511 | char *copy; |
| 512 | size_t len; |
| 513 | |
| 514 | while (isspace (*s)) |
| 515 | s++; |
| 516 | |
| 517 | word = s; |
| 518 | |
| 519 | len = 0; |
| 520 | |
| 521 | while (*s && !isspace (*s)) |
| 522 | { |
| 523 | s++; |
| 524 | len++; |
| 525 | |
| 526 | } |
| 527 | copy = xmalloc (len + 1); |
| 528 | memcpy (copy, word, len); |
| 529 | copy[len] = 0; |
| 530 | *p = s; |
| 531 | return copy; |
| 532 | } |
| 533 | |
| 534 | static int baudrate = 9600; |
| 535 | |
| 536 | static int |
| 537 | is_baudrate_right () |
| 538 | { |
| 539 | int ok; |
| 540 | |
| 541 | /* Put this port into NORMAL mode, send the 'normal' character */ |
| 542 | |
| 543 | hms_write ("\001", 1); /* Control A */ |
| 544 | hms_write ("\r", 1); /* Cr */ |
| 545 | |
| 546 | while (1) |
| 547 | { |
| 548 | ok = SERIAL_READCHAR (desc, timeout); |
| 549 | if (ok < 0) |
| 550 | break; |
| 551 | } |
| 552 | |
| 553 | hms_write ("r", 1); |
| 554 | |
| 555 | if (readchar_nofail () == 'r') |
| 556 | return 1; |
| 557 | |
| 558 | /* Not the right baudrate, or the board's not on */ |
| 559 | return 0; |
| 560 | } |
| 561 | static void |
| 562 | set_rate () |
| 563 | { |
| 564 | if (!SERIAL_SETBAUDRATE (desc, baudrate)) |
| 565 | error ("Can't set baudrate"); |
| 566 | } |
| 567 | |
| 568 | |
| 569 | static void |
| 570 | hms_open (name, from_tty) |
| 571 | char *name; |
| 572 | int from_tty; |
| 573 | { |
| 574 | unsigned int prl; |
| 575 | char *p; |
| 576 | |
| 577 | if (name == 0) |
| 578 | { |
| 579 | name = ""; |
| 580 | } |
| 581 | if (is_open) |
| 582 | hms_close (0); |
| 583 | dev_name = strdup (name); |
| 584 | |
| 585 | if (!(desc = SERIAL_OPEN (dev_name))) |
| 586 | perror_with_name ((char *) dev_name); |
| 587 | |
| 588 | SERIAL_RAW (desc); |
| 589 | is_open = 1; |
| 590 | |
| 591 | dcache_init (); |
| 592 | |
| 593 | /* Hello? Are you there? */ |
| 594 | SERIAL_WRITE (desc, "\r", 1); |
| 595 | expect_prompt (); |
| 596 | |
| 597 | /* Clear any break points */ |
| 598 | hms_clear_breakpoints (); |
| 599 | |
| 600 | printf_filtered ("Connected to remote H8/300 HMS system.\n"); |
| 601 | } |
| 602 | |
| 603 | /* Close out all files and local state before this target loses control. */ |
| 604 | |
| 605 | static void |
| 606 | hms_close (quitting) |
| 607 | int quitting; |
| 608 | { |
| 609 | /* Clear any break points */ |
| 610 | hms_clear_breakpoints (); |
| 611 | sleep (1); /* Let any output make it all the way back */ |
| 612 | if (is_open) |
| 613 | { |
| 614 | SERIAL_WRITE (desc, "R\r", 2); |
| 615 | SERIAL_CLOSE (desc); |
| 616 | } |
| 617 | is_open = 0; |
| 618 | } |
| 619 | |
| 620 | /* Terminate the open connection to the remote debugger. |
| 621 | Use this when you want to detach and do something else |
| 622 | with your gdb. */ |
| 623 | void |
| 624 | hms_detach (args, from_tty) |
| 625 | char *args; |
| 626 | int from_tty; |
| 627 | { |
| 628 | if (is_open) |
| 629 | { |
| 630 | hms_clear_breakpoints (); |
| 631 | } |
| 632 | |
| 633 | pop_target (); /* calls hms_close to do the real work */ |
| 634 | if (from_tty) |
| 635 | printf_filtered ("Ending remote %s debugging\n", target_shortname); |
| 636 | } |
| 637 | |
| 638 | /* Tell the remote machine to resume. */ |
| 639 | |
| 640 | void |
| 641 | hms_resume (pid, step, sig) |
| 642 | int pid, step, sig; |
| 643 | { |
| 644 | dcache_flush (); |
| 645 | |
| 646 | if (step) |
| 647 | { |
| 648 | hms_write_cr ("s"); |
| 649 | expect ("Step>"); |
| 650 | |
| 651 | /* Force the next hms_wait to return a trap. Not doing anything |
| 652 | about I/O from the target means that the user has to type |
| 653 | "continue" to see any. FIXME, this should be fixed. */ |
| 654 | need_artificial_trap = 1; |
| 655 | } |
| 656 | else |
| 657 | { |
| 658 | hms_write_cr ("g"); |
| 659 | expect ("g"); |
| 660 | } |
| 661 | } |
| 662 | |
| 663 | /* Wait until the remote machine stops, then return, |
| 664 | storing status in STATUS just as `wait' would. */ |
| 665 | |
| 666 | int |
| 667 | hms_wait (status) |
| 668 | WAITTYPE *status; |
| 669 | { |
| 670 | /* Strings to look for. '?' means match any single character. |
| 671 | Note that with the algorithm we use, the initial character |
| 672 | of the string cannot recur in the string, or we will not |
| 673 | find some cases of the string in the input. */ |
| 674 | |
| 675 | static char bpt[] = "At breakpoint:"; |
| 676 | |
| 677 | /* It would be tempting to look for "\n[__exit + 0x8]\n" |
| 678 | but that requires loading symbols with "yc i" and even if |
| 679 | we did do that we don't know that the file has symbols. */ |
| 680 | static char exitmsg[] = "HMS>"; |
| 681 | char *bp = bpt; |
| 682 | char *ep = exitmsg; |
| 683 | |
| 684 | /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */ |
| 685 | char swallowed[50]; |
| 686 | |
| 687 | /* Current position in swallowed. */ |
| 688 | char *swallowed_p = swallowed; |
| 689 | |
| 690 | int ch; |
| 691 | int ch_handled; |
| 692 | int old_timeout = timeout; |
| 693 | int old_immediate_quit = immediate_quit; |
| 694 | int swallowed_cr = 0; |
| 695 | |
| 696 | WSETEXIT ((*status), 0); |
| 697 | |
| 698 | if (need_artificial_trap != 0) |
| 699 | { |
| 700 | WSETSTOP ((*status), SIGTRAP); |
| 701 | need_artificial_trap--; |
| 702 | return 0; |
| 703 | } |
| 704 | |
| 705 | timeout = 99999; /* Don't time out -- user program is running. */ |
| 706 | immediate_quit = 1; /* Helps ability to QUIT */ |
| 707 | while (1) |
| 708 | { |
| 709 | QUIT; /* Let user quit and leave process running */ |
| 710 | ch_handled = 0; |
| 711 | ch = readchar (); |
| 712 | if (ch == *bp) |
| 713 | { |
| 714 | bp++; |
| 715 | if (*bp == '\0') |
| 716 | break; |
| 717 | ch_handled = 1; |
| 718 | |
| 719 | *swallowed_p++ = ch; |
| 720 | } |
| 721 | else |
| 722 | { |
| 723 | bp = bpt; |
| 724 | } |
| 725 | if (ch == *ep || *ep == '?') |
| 726 | { |
| 727 | ep++; |
| 728 | if (*ep == '\0') |
| 729 | break; |
| 730 | |
| 731 | if (!ch_handled) |
| 732 | *swallowed_p++ = ch; |
| 733 | ch_handled = 1; |
| 734 | } |
| 735 | else |
| 736 | { |
| 737 | ep = exitmsg; |
| 738 | } |
| 739 | |
| 740 | if (!ch_handled) |
| 741 | { |
| 742 | char *p; |
| 743 | |
| 744 | /* Print out any characters which have been swallowed. */ |
| 745 | for (p = swallowed; p < swallowed_p; ++p) |
| 746 | putc (*p, stdout); |
| 747 | swallowed_p = swallowed; |
| 748 | |
| 749 | if ((ch != '\r' && ch != '\n') || swallowed_cr > 10) |
| 750 | { |
| 751 | putc (ch, stdout); |
| 752 | swallowed_cr = 10; |
| 753 | } |
| 754 | swallowed_cr++; |
| 755 | |
| 756 | } |
| 757 | } |
| 758 | if (*bp == '\0') |
| 759 | { |
| 760 | WSETSTOP ((*status), SIGTRAP); |
| 761 | expect_prompt (); |
| 762 | } |
| 763 | else |
| 764 | { |
| 765 | WSETEXIT ((*status), 0); |
| 766 | } |
| 767 | |
| 768 | timeout = old_timeout; |
| 769 | immediate_quit = old_immediate_quit; |
| 770 | return 0; |
| 771 | } |
| 772 | |
| 773 | /* Return the name of register number REGNO |
| 774 | in the form input and output by hms. |
| 775 | |
| 776 | Returns a pointer to a static buffer containing the answer. */ |
| 777 | static char * |
| 778 | get_reg_name (regno) |
| 779 | int regno; |
| 780 | { |
| 781 | static char *rn[] = REGISTER_NAMES; |
| 782 | |
| 783 | return rn[regno]; |
| 784 | } |
| 785 | |
| 786 | /* Read the remote registers. */ |
| 787 | static int |
| 788 | gethex (length, start, ok) |
| 789 | unsigned int length; |
| 790 | char *start; |
| 791 | int *ok; |
| 792 | { |
| 793 | int result = 0; |
| 794 | |
| 795 | while (length--) |
| 796 | { |
| 797 | result <<= 4; |
| 798 | if (*start >= 'a' && *start <= 'f') |
| 799 | { |
| 800 | result += *start - 'a' + 10; |
| 801 | } |
| 802 | else if (*start >= 'A' && *start <= 'F') |
| 803 | { |
| 804 | result += *start - 'A' + 10; |
| 805 | } |
| 806 | else if (*start >= '0' && *start <= '9') |
| 807 | { |
| 808 | result += *start - '0'; |
| 809 | } |
| 810 | else |
| 811 | *ok = 0; |
| 812 | start++; |
| 813 | |
| 814 | } |
| 815 | return result; |
| 816 | } |
| 817 | static int |
| 818 | timed_read (buf, n, timeout) |
| 819 | char *buf; |
| 820 | |
| 821 | { |
| 822 | int i; |
| 823 | char c; |
| 824 | |
| 825 | i = 0; |
| 826 | while (i < n) |
| 827 | { |
| 828 | c = readchar (); |
| 829 | |
| 830 | if (c == 0) |
| 831 | return i; |
| 832 | buf[i] = c; |
| 833 | i++; |
| 834 | |
| 835 | } |
| 836 | return i; |
| 837 | } |
| 838 | |
| 839 | hms_write (a, l) |
| 840 | char *a; |
| 841 | { |
| 842 | int i; |
| 843 | |
| 844 | SERIAL_WRITE (desc, a, l); |
| 845 | |
| 846 | if (!quiet) |
| 847 | for (i = 0; i < l; i++) |
| 848 | { |
| 849 | printf ("%c", a[i]); |
| 850 | } |
| 851 | } |
| 852 | |
| 853 | hms_write_cr (s) |
| 854 | char *s; |
| 855 | { |
| 856 | hms_write (s, strlen (s)); |
| 857 | hms_write ("\r", 1); |
| 858 | } |
| 859 | |
| 860 | static void |
| 861 | hms_fetch_register (dummy) |
| 862 | int dummy; |
| 863 | { |
| 864 | #define REGREPLY_SIZE 79 |
| 865 | char linebuf[REGREPLY_SIZE + 1]; |
| 866 | int i; |
| 867 | int s; |
| 868 | int gottok; |
| 869 | |
| 870 | REGISTER_TYPE reg[NUM_REGS]; |
| 871 | int foo[8]; |
| 872 | |
| 873 | check_open (); |
| 874 | |
| 875 | do |
| 876 | { |
| 877 | |
| 878 | hms_write_cr ("r"); |
| 879 | s = timed_read (linebuf, REGREPLY_SIZE, 1); |
| 880 | |
| 881 | linebuf[REGREPLY_SIZE] = 0; |
| 882 | gottok = 0; |
| 883 | if (linebuf[0] == 'r' && |
| 884 | linebuf[3] == 'P' && |
| 885 | linebuf[4] == 'C' && |
| 886 | linebuf[5] == '=' && |
| 887 | linebuf[75] == 'H' && |
| 888 | linebuf[76] == 'M' && |
| 889 | linebuf[77] == 'S') |
| 890 | { |
| 891 | /* |
| 892 | PC=XXXX CCR=XX:XXXXXXXX R0-R7= XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX |
| 893 | 5436789012345678901234567890123456789012345678901234567890123456789012 |
| 894 | 0 1 2 3 4 5 6 |
| 895 | */ |
| 896 | gottok = 1; |
| 897 | |
| 898 | reg[PC_REGNUM] = gethex (4, linebuf + 6, &gottok); |
| 899 | reg[CCR_REGNUM] = gethex (2, linebuf + 15, &gottok); |
| 900 | for (i = 0; i < 8; i++) |
| 901 | { |
| 902 | reg[i] = gethex (4, linebuf + 34 + 5 * i, &gottok); |
| 903 | } |
| 904 | } |
| 905 | } |
| 906 | while (!gottok); |
| 907 | for (i = 0; i < NUM_REGS; i++) |
| 908 | { |
| 909 | char swapped[2]; |
| 910 | |
| 911 | swapped[1] = reg[i]; |
| 912 | swapped[0] = (reg[i]) >> 8; |
| 913 | |
| 914 | supply_register (i, swapped); |
| 915 | } |
| 916 | } |
| 917 | |
| 918 | /* Store register REGNO, or all if REGNO == -1. |
| 919 | Return errno value. */ |
| 920 | static void |
| 921 | hms_store_register (regno) |
| 922 | int regno; |
| 923 | { |
| 924 | if (regno == -1) |
| 925 | { |
| 926 | for (regno = 0; regno < NUM_REGS; regno++) |
| 927 | { |
| 928 | hms_store_register (regno); |
| 929 | } |
| 930 | } |
| 931 | else |
| 932 | { |
| 933 | char *name = get_reg_name (regno); |
| 934 | char buffer[100]; |
| 935 | |
| 936 | sprintf (buffer, "r %s=%x", name, read_register (regno)); |
| 937 | hms_write_cr (buffer); |
| 938 | expect_prompt (); |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | /* Get ready to modify the registers array. On machines which store |
| 943 | individual registers, this doesn't need to do anything. On machines |
| 944 | which store all the registers in one fell swoop, this makes sure |
| 945 | that registers contains all the registers from the program being |
| 946 | debugged. */ |
| 947 | |
| 948 | void |
| 949 | hms_prepare_to_store () |
| 950 | { |
| 951 | /* Do nothing, since we can store individual regs */ |
| 952 | } |
| 953 | |
| 954 | static CORE_ADDR |
| 955 | translate_addr (addr) |
| 956 | CORE_ADDR addr; |
| 957 | { |
| 958 | |
| 959 | return (addr); |
| 960 | |
| 961 | } |
| 962 | |
| 963 | /* Read a word from remote address ADDR and return it. |
| 964 | * This goes through the data cache. |
| 965 | */ |
| 966 | int |
| 967 | hms_fetch_word (addr) |
| 968 | CORE_ADDR addr; |
| 969 | { |
| 970 | return dcache_fetch (addr); |
| 971 | } |
| 972 | |
| 973 | /* Write a word WORD into remote address ADDR. |
| 974 | This goes through the data cache. */ |
| 975 | |
| 976 | void |
| 977 | hms_store_word (addr, word) |
| 978 | CORE_ADDR addr; |
| 979 | int word; |
| 980 | { |
| 981 | dcache_poke (addr, word); |
| 982 | } |
| 983 | |
| 984 | int |
| 985 | hms_xfer_inferior_memory (memaddr, myaddr, len, write, target) |
| 986 | CORE_ADDR memaddr; |
| 987 | char *myaddr; |
| 988 | int len; |
| 989 | int write; |
| 990 | struct target_ops *target; /* ignored */ |
| 991 | { |
| 992 | register int i; |
| 993 | |
| 994 | /* Round starting address down to longword boundary. */ |
| 995 | register CORE_ADDR addr; |
| 996 | |
| 997 | /* Round ending address up; get number of longwords that makes. */ |
| 998 | register int count; |
| 999 | |
| 1000 | /* Allocate buffer of that many longwords. */ |
| 1001 | register int *buffer; |
| 1002 | |
| 1003 | memaddr &= 0xffff; |
| 1004 | addr = memaddr & -sizeof (int); |
| 1005 | count = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); |
| 1006 | |
| 1007 | buffer = (int *) alloca (count * sizeof (int)); |
| 1008 | |
| 1009 | if (write) |
| 1010 | { |
| 1011 | /* Fill start and end extra bytes of buffer with existing memory data. */ |
| 1012 | |
| 1013 | if (addr != memaddr || len < (int) sizeof (int)) |
| 1014 | { |
| 1015 | /* Need part of initial word -- fetch it. */ |
| 1016 | buffer[0] = hms_fetch_word (addr); |
| 1017 | } |
| 1018 | |
| 1019 | if (count > 1) /* FIXME, avoid if even boundary */ |
| 1020 | { |
| 1021 | buffer[count - 1] |
| 1022 | = hms_fetch_word (addr + (count - 1) * sizeof (int)); |
| 1023 | } |
| 1024 | |
| 1025 | /* Copy data to be written over corresponding part of buffer */ |
| 1026 | |
| 1027 | bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); |
| 1028 | |
| 1029 | /* Write the entire buffer. */ |
| 1030 | |
| 1031 | for (i = 0; i < count; i++, addr += sizeof (int)) |
| 1032 | { |
| 1033 | errno = 0; |
| 1034 | hms_store_word (addr, buffer[i]); |
| 1035 | if (errno) |
| 1036 | { |
| 1037 | |
| 1038 | return 0; |
| 1039 | } |
| 1040 | |
| 1041 | } |
| 1042 | } |
| 1043 | else |
| 1044 | { |
| 1045 | /* Read all the longwords */ |
| 1046 | for (i = 0; i < count; i++, addr += sizeof (int)) |
| 1047 | { |
| 1048 | errno = 0; |
| 1049 | buffer[i] = hms_fetch_word (addr); |
| 1050 | if (errno) |
| 1051 | { |
| 1052 | return 0; |
| 1053 | } |
| 1054 | QUIT; |
| 1055 | } |
| 1056 | |
| 1057 | /* Copy appropriate bytes out of the buffer. */ |
| 1058 | bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); |
| 1059 | } |
| 1060 | |
| 1061 | return len; |
| 1062 | } |
| 1063 | |
| 1064 | int |
| 1065 | hms_write_inferior_memory (memaddr, myaddr, len) |
| 1066 | CORE_ADDR memaddr; |
| 1067 | unsigned char *myaddr; |
| 1068 | int len; |
| 1069 | { |
| 1070 | bfd_vma addr; |
| 1071 | int done; |
| 1072 | int todo; |
| 1073 | |
| 1074 | done = 0; |
| 1075 | while (done < len) |
| 1076 | { |
| 1077 | char buffer[20]; |
| 1078 | int thisgo; |
| 1079 | int idx; |
| 1080 | |
| 1081 | thisgo = len - done; |
| 1082 | if (thisgo > 20) |
| 1083 | thisgo = 20; |
| 1084 | |
| 1085 | sprintf (buffer, "M.B %4x =", memaddr + done); |
| 1086 | hms_write (buffer, 10); |
| 1087 | for (idx = 0; idx < thisgo; idx++) |
| 1088 | { |
| 1089 | char buf[20]; |
| 1090 | |
| 1091 | sprintf (buf, "%2x ", myaddr[idx + done]); |
| 1092 | hms_write (buf, 3); |
| 1093 | } |
| 1094 | hms_write_cr (""); |
| 1095 | expect_prompt (); |
| 1096 | done += thisgo; |
| 1097 | } |
| 1098 | |
| 1099 | } |
| 1100 | |
| 1101 | void |
| 1102 | hms_files_info () |
| 1103 | { |
| 1104 | char *file = "nothing"; |
| 1105 | |
| 1106 | if (exec_bfd) |
| 1107 | file = bfd_get_filename (exec_bfd); |
| 1108 | |
| 1109 | if (exec_bfd) |
| 1110 | #ifdef __GO32__ |
| 1111 | printf_filtered ("\tAttached to DOS asynctsr and running program %s\n", file); |
| 1112 | #else |
| 1113 | printf_filtered ("\tAttached to %s at %d baud and running program %s\n", file); |
| 1114 | #endif |
| 1115 | printf_filtered ("\ton an H8/300 processor.\n"); |
| 1116 | } |
| 1117 | |
| 1118 | /* Copy LEN bytes of data from debugger memory at MYADDR |
| 1119 | to inferior's memory at MEMADDR. Returns errno value. |
| 1120 | * sb/sh instructions don't work on unaligned addresses, when TU=1. |
| 1121 | */ |
| 1122 | |
| 1123 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result |
| 1124 | at debugger address MYADDR. Returns errno value. */ |
| 1125 | int |
| 1126 | hms_read_inferior_memory (memaddr, myaddr, len) |
| 1127 | CORE_ADDR memaddr; |
| 1128 | char *myaddr; |
| 1129 | int len; |
| 1130 | { |
| 1131 | /* Align to nearest low 16 bits */ |
| 1132 | int i; |
| 1133 | |
| 1134 | #if 0 |
| 1135 | CORE_ADDR start = memaddr & ~0xf; |
| 1136 | CORE_ADDR end = ((memaddr + len + 16) & ~0xf) - 1; |
| 1137 | |
| 1138 | #endif |
| 1139 | CORE_ADDR start = memaddr; |
| 1140 | CORE_ADDR end = memaddr + len - 1; |
| 1141 | |
| 1142 | int ok = 1; |
| 1143 | |
| 1144 | /* |
| 1145 | AAAA: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX '................' |
| 1146 | 012345678901234567890123456789012345678901234567890123456789012345 |
| 1147 | 0 1 2 3 4 5 6 |
| 1148 | */ |
| 1149 | char buffer[66]; |
| 1150 | |
| 1151 | if (memaddr & 0xf) |
| 1152 | abort (); |
| 1153 | if (len != 16) |
| 1154 | abort (); |
| 1155 | |
| 1156 | sprintf (buffer, "m %4x %4x", start & 0xffff, end & 0xffff); |
| 1157 | hms_write_cr (buffer); |
| 1158 | /* drop the echo and newline*/ |
| 1159 | for (i = 0; i < 13; i++) |
| 1160 | readchar (); |
| 1161 | |
| 1162 | /* Grab the lines as they come out and fill the area */ |
| 1163 | /* Skip over cr */ |
| 1164 | while (1) |
| 1165 | { |
| 1166 | int p; |
| 1167 | int i; |
| 1168 | int addr; |
| 1169 | size_t idx; |
| 1170 | |
| 1171 | char byte[16]; |
| 1172 | |
| 1173 | buffer[0] = readchar (); |
| 1174 | if (buffer[0] == 'M') |
| 1175 | break; |
| 1176 | for (i = 1; i < 66; i++) |
| 1177 | buffer[i] = readchar (); |
| 1178 | |
| 1179 | /* Now parse the line */ |
| 1180 | |
| 1181 | addr = gethex (4, buffer, &ok); |
| 1182 | idx = 6; |
| 1183 | for (p = 0; p < 16; p += 2) |
| 1184 | { |
| 1185 | byte[p] = gethex (2, buffer + idx, &ok); |
| 1186 | byte[p + 1] = gethex (2, buffer + idx + 2, &ok); |
| 1187 | idx += 5; |
| 1188 | |
| 1189 | } |
| 1190 | |
| 1191 | for (p = 0; p < 16; p++) |
| 1192 | { |
| 1193 | if (addr + p >= memaddr && |
| 1194 | addr + p < memaddr + len) |
| 1195 | { |
| 1196 | myaddr[(addr + p) - memaddr] = byte[p]; |
| 1197 | |
| 1198 | } |
| 1199 | |
| 1200 | } |
| 1201 | } |
| 1202 | expect ("emory>"); |
| 1203 | hms_write_cr (" "); |
| 1204 | expect_prompt (); |
| 1205 | return len; |
| 1206 | } |
| 1207 | |
| 1208 | /* This routine is run as a hook, just before the main command loop is |
| 1209 | entered. If gdb is configured for the H8, but has not had its |
| 1210 | target specified yet, this will loop prompting the user to do so. |
| 1211 | */ |
| 1212 | |
| 1213 | hms_before_main_loop () |
| 1214 | { |
| 1215 | char ttyname[100]; |
| 1216 | char *p, *p2; |
| 1217 | extern FILE *instream; |
| 1218 | |
| 1219 | push_target (&hms_ops); |
| 1220 | } |
| 1221 | |
| 1222 | #define MAX_BREAKS 16 |
| 1223 | static int num_brkpts = 0; |
| 1224 | static int |
| 1225 | hms_insert_breakpoint (addr, save) |
| 1226 | CORE_ADDR addr; |
| 1227 | char *save; /* Throw away, let hms save instructions */ |
| 1228 | { |
| 1229 | check_open (); |
| 1230 | |
| 1231 | if (num_brkpts < MAX_BREAKS) |
| 1232 | { |
| 1233 | char buffer[100]; |
| 1234 | |
| 1235 | num_brkpts++; |
| 1236 | sprintf (buffer, "b %x", addr & 0xffff); |
| 1237 | hms_write_cr (buffer); |
| 1238 | expect_prompt (); |
| 1239 | return (0); |
| 1240 | } |
| 1241 | else |
| 1242 | { |
| 1243 | fprintf_filtered (stderr, |
| 1244 | "Too many break points, break point not installed\n"); |
| 1245 | return (1); |
| 1246 | } |
| 1247 | |
| 1248 | } |
| 1249 | static int |
| 1250 | hms_remove_breakpoint (addr, save) |
| 1251 | CORE_ADDR addr; |
| 1252 | char *save; /* Throw away, let hms save instructions */ |
| 1253 | { |
| 1254 | if (num_brkpts > 0) |
| 1255 | { |
| 1256 | char buffer[100]; |
| 1257 | |
| 1258 | num_brkpts--; |
| 1259 | sprintf (buffer, "b - %x", addr & 0xffff); |
| 1260 | hms_write_cr (buffer); |
| 1261 | expect_prompt (); |
| 1262 | |
| 1263 | } |
| 1264 | return (0); |
| 1265 | } |
| 1266 | |
| 1267 | /* Clear the hmss notion of what the break points are */ |
| 1268 | static int |
| 1269 | hms_clear_breakpoints () |
| 1270 | { |
| 1271 | |
| 1272 | if (is_open) |
| 1273 | { |
| 1274 | hms_write_cr ("b -"); |
| 1275 | expect_prompt (); |
| 1276 | } |
| 1277 | num_brkpts = 0; |
| 1278 | } |
| 1279 | static void |
| 1280 | hms_mourn () |
| 1281 | { |
| 1282 | hms_clear_breakpoints (); |
| 1283 | unpush_target (&hms_ops); |
| 1284 | generic_mourn_inferior (); |
| 1285 | } |
| 1286 | |
| 1287 | /* Put a command string, in args, out to the hms. The hms is assumed to |
| 1288 | be in raw mode, all writing/reading done through desc. |
| 1289 | Ouput from the hms is placed on the users terminal until the |
| 1290 | prompt from the hms is seen. |
| 1291 | FIXME: Can't handle commands that take input. */ |
| 1292 | |
| 1293 | void |
| 1294 | hms_com (args, fromtty) |
| 1295 | char *args; |
| 1296 | int fromtty; |
| 1297 | { |
| 1298 | check_open (); |
| 1299 | |
| 1300 | if (!args) |
| 1301 | return; |
| 1302 | |
| 1303 | /* Clear all input so only command relative output is displayed */ |
| 1304 | |
| 1305 | hms_write_cr (args); |
| 1306 | hms_write ("\030", 1); |
| 1307 | expect_prompt (); |
| 1308 | } |
| 1309 | |
| 1310 | /* Define the target subroutine names */ |
| 1311 | |
| 1312 | struct target_ops hms_ops = |
| 1313 | { |
| 1314 | "hms", "Remote HMS monitor", |
| 1315 | "Use the H8 evaluation board running the HMS monitor connected\n\ |
| 1316 | by a serial line.", |
| 1317 | |
| 1318 | hms_open, hms_close, |
| 1319 | 0, hms_detach, hms_resume, hms_wait, /* attach */ |
| 1320 | hms_fetch_register, hms_store_register, |
| 1321 | hms_prepare_to_store, |
| 1322 | hms_xfer_inferior_memory, |
| 1323 | hms_files_info, |
| 1324 | hms_insert_breakpoint, hms_remove_breakpoint, /* Breakpoints */ |
| 1325 | 0, 0, 0, 0, 0, /* Terminal handling */ |
| 1326 | hms_kill, /* FIXME, kill */ |
| 1327 | hms_load, |
| 1328 | 0, /* lookup_symbol */ |
| 1329 | hms_create_inferior, /* create_inferior */ |
| 1330 | hms_mourn, /* mourn_inferior FIXME */ |
| 1331 | 0, /* can_run */ |
| 1332 | 0, /* notice_signals */ |
| 1333 | process_stratum, 0, /* next */ |
| 1334 | 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */ |
| 1335 | 0, 0, /* Section pointers */ |
| 1336 | OPS_MAGIC, /* Always the last thing */ |
| 1337 | }; |
| 1338 | |
| 1339 | hms_quiet () |
| 1340 | { |
| 1341 | quiet = !quiet; |
| 1342 | if (quiet) |
| 1343 | printf_filtered ("Snoop disabled\n"); |
| 1344 | else |
| 1345 | printf_filtered ("Snoop enabled\n"); |
| 1346 | |
| 1347 | } |
| 1348 | |
| 1349 | hms_device (s) |
| 1350 | char *s; |
| 1351 | { |
| 1352 | if (s) |
| 1353 | { |
| 1354 | dev_name = get_word (&s); |
| 1355 | } |
| 1356 | } |
| 1357 | |
| 1358 | static |
| 1359 | hms_speed (s) |
| 1360 | char *s; |
| 1361 | { |
| 1362 | check_open (); |
| 1363 | |
| 1364 | if (s) |
| 1365 | { |
| 1366 | char buffer[100]; |
| 1367 | int newrate = atoi (s); |
| 1368 | int which = 0; |
| 1369 | |
| 1370 | if (SERIAL_SETBAUDRATE (desc, newrate)) |
| 1371 | error ("Can't use %d baud\n", newrate); |
| 1372 | |
| 1373 | printf_filtered ("Checking target is in sync\n"); |
| 1374 | |
| 1375 | printf_filtered ("Sending commands to set target to %d\n", |
| 1376 | baudrate); |
| 1377 | |
| 1378 | sprintf (buffer, "tm %d. N 8 1", baudrate); |
| 1379 | hms_write_cr (buffer); |
| 1380 | } |
| 1381 | } |
| 1382 | |
| 1383 | /***********************************************************************/ |
| 1384 | |
| 1385 | void |
| 1386 | _initialize_remote_hms () |
| 1387 | { |
| 1388 | add_target (&hms_ops); |
| 1389 | |
| 1390 | add_com ("hms <command>", class_obscure, hms_com, |
| 1391 | "Send a command to the HMS monitor."); |
| 1392 | add_com ("snoop", class_obscure, hms_quiet, |
| 1393 | "Show what commands are going to the monitor"); |
| 1394 | |
| 1395 | add_com ("device", class_obscure, hms_device, |
| 1396 | "Set the terminal line for HMS communications"); |
| 1397 | |
| 1398 | add_com ("speed", class_obscure, hms_speed, |
| 1399 | "Set the terminal line speed for HMS communications"); |
| 1400 | |
| 1401 | dev_name = NULL; |
| 1402 | } |