| 1 | /* Remote debugging interface for Hitachi HMS Monitor Version 1.0 |
| 2 | Copyright 1995 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 "gdbcore.h" |
| 24 | #include "target.h" |
| 25 | #include "monitor.h" |
| 26 | #include "serial.h" |
| 27 | |
| 28 | static void hms_open PARAMS ((char *args, int from_tty)); |
| 29 | |
| 30 | static void |
| 31 | hms_supply_register (regname, regnamelen, val, vallen) |
| 32 | char *regname; |
| 33 | int regnamelen; |
| 34 | char *val; |
| 35 | int vallen; |
| 36 | { |
| 37 | int regno; |
| 38 | |
| 39 | if (regnamelen != 2) |
| 40 | return; |
| 41 | if (regname[0] != 'P') |
| 42 | return; |
| 43 | /* We scan off all the registers in one go */ |
| 44 | |
| 45 | val = monitor_supply_register (PC_REGNUM, val); |
| 46 | /* Skip the ccr string */ |
| 47 | while (*val != '=' && *val) |
| 48 | val++; |
| 49 | |
| 50 | val = monitor_supply_register (CCR_REGNUM, val + 1); |
| 51 | |
| 52 | /* Skip up to rest of regs */ |
| 53 | while (*val != '=' && *val) |
| 54 | val++; |
| 55 | |
| 56 | for (regno = 0; regno < 7; regno++) |
| 57 | { |
| 58 | val = monitor_supply_register (regno, val + 1); |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | /* |
| 63 | * This array of registers needs to match the indexes used by GDB. The |
| 64 | * whole reason this exists is because the various ROM monitors use |
| 65 | * different names than GDB does, and don't support all the |
| 66 | * registers either. So, typing "info reg sp" becomes a "r30". |
| 67 | */ |
| 68 | |
| 69 | static char *hms_regnames[NUM_REGS] = |
| 70 | { |
| 71 | "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "CCR", "PC" |
| 72 | }; |
| 73 | |
| 74 | /* |
| 75 | * Define the monitor command strings. Since these are passed directly |
| 76 | * through to a printf style function, we need can include formatting |
| 77 | * strings. We also need a CR or LF on the end. |
| 78 | */ |
| 79 | |
| 80 | static struct target_ops hms_ops; |
| 81 | |
| 82 | static char *hms_inits[] = |
| 83 | {"\003", /* Resets the prompt, and clears repeated cmds */ |
| 84 | NULL}; |
| 85 | |
| 86 | static struct monitor_ops hms_cmds = |
| 87 | { |
| 88 | MO_CLR_BREAK_USES_ADDR | MO_FILL_USES_ADDR | MO_GETMEM_NEEDS_RANGE, |
| 89 | hms_inits, /* Init strings */ |
| 90 | "g\r", /* continue command */ |
| 91 | "s\r", /* single step */ |
| 92 | "\003", /* ^C interrupts the program */ |
| 93 | "b %x\r", /* set a breakpoint */ |
| 94 | "b - %x\r", /* clear a breakpoint */ |
| 95 | "b -\r", /* clear all breakpoints */ |
| 96 | "f %x %x %x\r", /* fill (start end val) */ |
| 97 | { |
| 98 | "m.b %x=%x\r", /* setmem.cmdb (addr, value) */ |
| 99 | "m.w %x=%x\r", /* setmem.cmdw (addr, value) */ |
| 100 | NULL, /* setmem.cmdl (addr, value) */ |
| 101 | NULL, /* setmem.cmdll (addr, value) */ |
| 102 | NULL, /* setreg.resp_delim */ |
| 103 | NULL, /* setreg.term */ |
| 104 | NULL, /* setreg.term_cmd */ |
| 105 | }, |
| 106 | { |
| 107 | "m.b %x %x\r", /* getmem.cmdb (addr, addr) */ |
| 108 | "m.w %x %x\r", /* getmem.cmdw (addr, addr) */ |
| 109 | NULL, /* getmem.cmdl (addr, addr) */ |
| 110 | NULL, /* getmem.cmdll (addr, addr) */ |
| 111 | ": ", /* getmem.resp_delim */ |
| 112 | ">", /* getmem.term */ |
| 113 | "\003", /* getmem.term_cmd */ |
| 114 | }, |
| 115 | { |
| 116 | "\003r %s=%x\r", /* setreg.cmd (name, value) */ |
| 117 | NULL, /* setreg.resp_delim */ |
| 118 | NULL, /* setreg.term */ |
| 119 | NULL /* setreg.term_cmd */ |
| 120 | }, |
| 121 | { |
| 122 | "r %s\r", /* getreg.cmd (name) */ |
| 123 | " (", /* getreg.resp_delim */ |
| 124 | "):", /* getreg.term */ |
| 125 | "\003", /* getreg.term_cmd */ |
| 126 | }, |
| 127 | "r\r", /* dump_registers */ |
| 128 | "\\(\\w+\\)=\\([0-9a-fA-F]+\\)", /* register_pattern */ |
| 129 | hms_supply_register, /* supply_register */ |
| 130 | NULL, /* load_routine (defaults to SRECs) */ |
| 131 | "tl\r", /* download command */ |
| 132 | NULL, /* load response */ |
| 133 | ">", /* monitor command prompt */ |
| 134 | "\r", /* end-of-command delimitor */ |
| 135 | NULL, /* optional command terminator */ |
| 136 | &hms_ops, /* target operations */ |
| 137 | SERIAL_1_STOPBITS, /* number of stop bits */ |
| 138 | hms_regnames, /* registers names */ |
| 139 | MONITOR_OPS_MAGIC /* magic */ |
| 140 | }; |
| 141 | |
| 142 | static void |
| 143 | hms_open (args, from_tty) |
| 144 | char *args; |
| 145 | int from_tty; |
| 146 | { |
| 147 | monitor_open (args, &hms_cmds, from_tty); |
| 148 | } |
| 149 | |
| 150 | int write_dos_tick_delay; |
| 151 | |
| 152 | void |
| 153 | _initialize_remote_hms () |
| 154 | { |
| 155 | init_monitor_ops (&hms_ops); |
| 156 | |
| 157 | hms_ops.to_shortname = "hms"; |
| 158 | hms_ops.to_longname = "Hitachi Microsystems H8/300 debug monitor"; |
| 159 | hms_ops.to_doc = "Debug via the HMS monitor.\n\ |
| 160 | Specify the serial device it is connected to (e.g. /dev/ttya)."; |
| 161 | hms_ops.to_open = hms_open; |
| 162 | /* By trial and error I've found that this delay doesn't break things */ |
| 163 | write_dos_tick_delay = 1; |
| 164 | add_target (&hms_ops); |
| 165 | } |
| 166 | |
| 167 | |
| 168 | #if 0 |
| 169 | /* This is kept here because we used to support the H8/500 in this module, |
| 170 | and I haven't done the H8/500 yet */ |
| 171 | #include "defs.h" |
| 172 | #include "inferior.h" |
| 173 | #include "wait.h" |
| 174 | #include "value.h" |
| 175 | #include <string.h> |
| 176 | #include <ctype.h> |
| 177 | #include <fcntl.h> |
| 178 | #include <signal.h> |
| 179 | #include <setjmp.h> |
| 180 | #include <errno.h> |
| 181 | #include "terminal.h" |
| 182 | #include "target.h" |
| 183 | #include "gdbcore.h" |
| 184 | #include "serial.h" |
| 185 | #include "remote-utils.h" |
| 186 | /* External data declarations */ |
| 187 | extern int stop_soon_quietly; /* for wait_for_inferior */ |
| 188 | |
| 189 | /* Forward data declarations */ |
| 190 | extern struct target_ops hms_ops; /* Forward declaration */ |
| 191 | |
| 192 | /* Forward function declarations */ |
| 193 | static void hms_fetch_registers (); |
| 194 | static int hms_store_registers (); |
| 195 | static void hms_close (); |
| 196 | static int hms_clear_breakpoints (); |
| 197 | |
| 198 | extern struct target_ops hms_ops; |
| 199 | static void hms_drain (); |
| 200 | static void add_commands (); |
| 201 | static void remove_commands (); |
| 202 | |
| 203 | static int quiet = 1; /* FIXME - can be removed after Dec '94 */ |
| 204 | |
| 205 | |
| 206 | |
| 207 | /*********************************************************************** |
| 208 | * I/O stuff stolen from remote-eb.c |
| 209 | ***********************************************************************/ |
| 210 | |
| 211 | static int timeout = 2; |
| 212 | |
| 213 | static const char *dev_name; |
| 214 | |
| 215 | /* Descriptor for I/O to remote machine. Initialize it to -1 so that |
| 216 | hms_open knows that we don't have a file open when the program |
| 217 | starts. */ |
| 218 | |
| 219 | static int before = 0xdead; |
| 220 | static int is_open = 0; |
| 221 | static int after = 0xdead; |
| 222 | int |
| 223 | check_open () |
| 224 | { |
| 225 | if (before != 0xdead |
| 226 | || after != 0xdead) |
| 227 | printf ("OUTCH! \n"); |
| 228 | if (!is_open) |
| 229 | { |
| 230 | error ("remote device not open"); |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | #define ON 1 |
| 235 | #define OFF 0 |
| 236 | |
| 237 | /* Read a character from the remote system, doing all the fancy |
| 238 | timeout stuff. */ |
| 239 | static int |
| 240 | readchar () |
| 241 | { |
| 242 | int buf; |
| 243 | |
| 244 | buf = SERIAL_READCHAR (desc, timeout); |
| 245 | |
| 246 | if (buf == SERIAL_TIMEOUT) |
| 247 | { |
| 248 | hms_write (".\r\n", 3); |
| 249 | error ("Timeout reading from remote system."); |
| 250 | } |
| 251 | if (buf == SERIAL_ERROR) |
| 252 | { |
| 253 | error ("Serial port error!"); |
| 254 | } |
| 255 | |
| 256 | if (!quiet || remote_debug) |
| 257 | printf_unfiltered ("%c", buf); |
| 258 | |
| 259 | return buf & 0x7f; |
| 260 | } |
| 261 | |
| 262 | static void |
| 263 | flush () |
| 264 | { |
| 265 | while (1) |
| 266 | { |
| 267 | int b = SERIAL_READCHAR (desc, 0); |
| 268 | if (b == SERIAL_TIMEOUT) |
| 269 | return; |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | static int |
| 274 | readchar_nofail () |
| 275 | { |
| 276 | int buf; |
| 277 | |
| 278 | buf = SERIAL_READCHAR (desc, timeout); |
| 279 | if (buf == SERIAL_TIMEOUT) |
| 280 | buf = 0; |
| 281 | if (!quiet || remote_debug) |
| 282 | printf_unfiltered ("%c", buf); |
| 283 | |
| 284 | return buf & 0x7f; |
| 285 | |
| 286 | } |
| 287 | |
| 288 | /* Keep discarding input from the remote system, until STRING is found. |
| 289 | Let the user break out immediately. */ |
| 290 | static void |
| 291 | expect (string) |
| 292 | char *string; |
| 293 | { |
| 294 | char *p = string; |
| 295 | char c; |
| 296 | immediate_quit = 1; |
| 297 | while (1) |
| 298 | { |
| 299 | c = readchar (); |
| 300 | if (c == *p) |
| 301 | { |
| 302 | p++; |
| 303 | if (*p == '\0') |
| 304 | { |
| 305 | immediate_quit = 0; |
| 306 | return; |
| 307 | } |
| 308 | } |
| 309 | else |
| 310 | { |
| 311 | p = string; |
| 312 | if (c == *p) |
| 313 | p++; |
| 314 | } |
| 315 | } |
| 316 | } |
| 317 | |
| 318 | /* Keep discarding input until we see the hms prompt. |
| 319 | |
| 320 | The convention for dealing with the prompt is that you |
| 321 | o give your command |
| 322 | o *then* wait for the prompt. |
| 323 | |
| 324 | Thus the last thing that a procedure does with the serial line |
| 325 | will be an expect_prompt(). Exception: hms_resume does not |
| 326 | wait for the prompt, because the terminal is being handed over |
| 327 | to the inferior. However, the next thing which happens after that |
| 328 | is a hms_wait which does wait for the prompt. |
| 329 | Note that this includes abnormal exit, e.g. error(). This is |
| 330 | necessary to prevent getting into states from which we can't |
| 331 | recover. */ |
| 332 | static void |
| 333 | expect_prompt () |
| 334 | { |
| 335 | expect ("HMS>"); |
| 336 | } |
| 337 | |
| 338 | /* Get a hex digit from the remote system & return its value. |
| 339 | If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */ |
| 340 | static int |
| 341 | get_hex_digit (ignore_space) |
| 342 | int ignore_space; |
| 343 | { |
| 344 | int ch; |
| 345 | |
| 346 | while (1) |
| 347 | { |
| 348 | ch = readchar (); |
| 349 | if (ch >= '0' && ch <= '9') |
| 350 | return ch - '0'; |
| 351 | else if (ch >= 'A' && ch <= 'F') |
| 352 | return ch - 'A' + 10; |
| 353 | else if (ch >= 'a' && ch <= 'f') |
| 354 | return ch - 'a' + 10; |
| 355 | else if (ch == ' ' && ignore_space) |
| 356 | ; |
| 357 | else |
| 358 | { |
| 359 | expect_prompt (); |
| 360 | error ("Invalid hex digit from remote system."); |
| 361 | } |
| 362 | } |
| 363 | } |
| 364 | |
| 365 | /* Get a byte from hms_desc and put it in *BYT. Accept any number |
| 366 | leading spaces. */ |
| 367 | static void |
| 368 | get_hex_byte (byt) |
| 369 | char *byt; |
| 370 | { |
| 371 | int val; |
| 372 | |
| 373 | val = get_hex_digit (1) << 4; |
| 374 | val |= get_hex_digit (0); |
| 375 | *byt = val; |
| 376 | } |
| 377 | |
| 378 | /* Read a 32-bit hex word from the hms, preceded by a space */ |
| 379 | static long |
| 380 | get_hex_word () |
| 381 | { |
| 382 | long val; |
| 383 | int j; |
| 384 | |
| 385 | val = 0; |
| 386 | for (j = 0; j < 8; j++) |
| 387 | val = (val << 4) + get_hex_digit (j == 0); |
| 388 | return val; |
| 389 | } |
| 390 | |
| 391 | /* Called when SIGALRM signal sent due to alarm() timeout. */ |
| 392 | |
| 393 | /* Number of SIGTRAPs we need to simulate. That is, the next |
| 394 | NEED_ARTIFICIAL_TRAP calls to hms_wait should just return |
| 395 | SIGTRAP without actually waiting for anything. */ |
| 396 | |
| 397 | static int need_artificial_trap = 0; |
| 398 | |
| 399 | void |
| 400 | hms_kill (arg, from_tty) |
| 401 | char *arg; |
| 402 | int from_tty; |
| 403 | { |
| 404 | |
| 405 | } |
| 406 | |
| 407 | /* This is called not only when we first attach, but also when the |
| 408 | user types "run" after having attached. */ |
| 409 | void |
| 410 | hms_create_inferior (execfile, args, env) |
| 411 | char *execfile; |
| 412 | char *args; |
| 413 | char **env; |
| 414 | { |
| 415 | int entry_pt; |
| 416 | char buffer[100]; |
| 417 | |
| 418 | if (args && *args) |
| 419 | error ("Can't pass arguments to remote hms process."); |
| 420 | |
| 421 | if (execfile == 0 || exec_bfd == 0) |
| 422 | error ("No exec file specified"); |
| 423 | |
| 424 | entry_pt = (int) bfd_get_start_address (exec_bfd); |
| 425 | check_open (); |
| 426 | |
| 427 | hms_kill (NULL, NULL); |
| 428 | hms_clear_breakpoints (); |
| 429 | init_wait_for_inferior (); |
| 430 | hms_write_cr (""); |
| 431 | expect_prompt (); |
| 432 | |
| 433 | insert_breakpoints (); /* Needed to get correct instruction in cache */ |
| 434 | proceed (entry_pt, TARGET_SIGNAL_DEFAULT, 0); |
| 435 | } |
| 436 | |
| 437 | /* Open a connection to a remote debugger. |
| 438 | NAME is the filename used for communication, then a space, |
| 439 | then the baud rate. |
| 440 | */ |
| 441 | |
| 442 | static char * |
| 443 | find_end_of_word (s) |
| 444 | char *s; |
| 445 | { |
| 446 | while (*s && !isspace (*s)) |
| 447 | s++; |
| 448 | return s; |
| 449 | } |
| 450 | |
| 451 | static char * |
| 452 | get_word (p) |
| 453 | char **p; |
| 454 | { |
| 455 | char *s = *p; |
| 456 | char *word; |
| 457 | char *copy; |
| 458 | size_t len; |
| 459 | |
| 460 | while (isspace (*s)) |
| 461 | s++; |
| 462 | |
| 463 | word = s; |
| 464 | |
| 465 | len = 0; |
| 466 | |
| 467 | while (*s && !isspace (*s)) |
| 468 | { |
| 469 | s++; |
| 470 | len++; |
| 471 | |
| 472 | } |
| 473 | copy = xmalloc (len + 1); |
| 474 | memcpy (copy, word, len); |
| 475 | copy[len] = 0; |
| 476 | *p = s; |
| 477 | return copy; |
| 478 | } |
| 479 | |
| 480 | static int baudrate = 9600; |
| 481 | |
| 482 | static int |
| 483 | is_baudrate_right () |
| 484 | { |
| 485 | int ok; |
| 486 | |
| 487 | /* Put this port into NORMAL mode, send the 'normal' character */ |
| 488 | |
| 489 | hms_write ("\001", 1); /* Control A */ |
| 490 | hms_write ("\r\n", 2); /* Cr */ |
| 491 | |
| 492 | while (1) |
| 493 | { |
| 494 | ok = SERIAL_READCHAR (desc, timeout); |
| 495 | if (ok < 0) |
| 496 | break; |
| 497 | } |
| 498 | |
| 499 | hms_write ("r", 1); |
| 500 | |
| 501 | if (readchar_nofail () == 'r') |
| 502 | return 1; |
| 503 | |
| 504 | /* Not the right baudrate, or the board's not on */ |
| 505 | return 0; |
| 506 | } |
| 507 | static void |
| 508 | set_rate () |
| 509 | { |
| 510 | if (!SERIAL_SETBAUDRATE (desc, baudrate)) |
| 511 | error ("Can't set baudrate"); |
| 512 | } |
| 513 | |
| 514 | |
| 515 | |
| 516 | /* Close out all files and local state before this target loses control. */ |
| 517 | |
| 518 | static void |
| 519 | hms_close (quitting) |
| 520 | int quitting; |
| 521 | { |
| 522 | /* Clear any break points */ |
| 523 | remove_commands (); |
| 524 | hms_clear_breakpoints (); |
| 525 | sleep (1); /* Let any output make it all the way back */ |
| 526 | if (is_open) |
| 527 | { |
| 528 | SERIAL_WRITE (desc, "R\r\n", 3); |
| 529 | SERIAL_CLOSE (desc); |
| 530 | } |
| 531 | is_open = 0; |
| 532 | } |
| 533 | |
| 534 | /* Terminate the open connection to the remote debugger. Use this |
| 535 | when you want to detach and do something else with your gdb. */ void |
| 536 | hms_detach (args, from_tty) |
| 537 | char *args; |
| 538 | int from_tty; |
| 539 | { |
| 540 | if (is_open) |
| 541 | { |
| 542 | hms_clear_breakpoints (); |
| 543 | } |
| 544 | |
| 545 | pop_target (); /* calls hms_close to do the real work |
| 546 | */ |
| 547 | if (from_tty) |
| 548 | printf_filtered ("Ending remote %s debugging\n", |
| 549 | target_shortname); |
| 550 | } |
| 551 | |
| 552 | /* Tell the remote machine to resume. */ |
| 553 | |
| 554 | void |
| 555 | hms_resume (pid, step, sig) |
| 556 | int pid, step; |
| 557 | enum target_signal |
| 558 | sig; |
| 559 | { |
| 560 | if (step) |
| 561 | { |
| 562 | hms_write_cr ("s"); |
| 563 | expect ("Step>"); |
| 564 | |
| 565 | /* Force the next hms_wait to return a trap. Not doing anything |
| 566 | about I/O from the target means that the user has to type "continue" |
| 567 | to see any. FIXME, this should be fixed. */ |
| 568 | need_artificial_trap = 1; |
| 569 | } |
| 570 | else |
| 571 | { |
| 572 | hms_write_cr ("g"); |
| 573 | expect ("g"); |
| 574 | } |
| 575 | } |
| 576 | |
| 577 | /* Wait until the remote machine stops, then return, storing status in |
| 578 | STATUS just as `wait' would. */ |
| 579 | |
| 580 | int |
| 581 | hms_wait (pid, status) |
| 582 | int pid; |
| 583 | struct target_waitstatus *status; |
| 584 | { |
| 585 | /* Strings to look for. '?' means match any single character. Note |
| 586 | that with the algorithm we use, the initial character of the string |
| 587 | cannot recur in the string, or we will not find some cases of the |
| 588 | string in the input. */ |
| 589 | |
| 590 | static char bpt[] = "At breakpoint:"; |
| 591 | |
| 592 | /* It would be tempting to look for "\n[__exit + 0x8]\n" but that |
| 593 | requires loading symbols with "yc i" and even if we did do that we |
| 594 | don't know that the file has symbols. */ |
| 595 | static char exitmsg[] = "HMS>"; |
| 596 | char *bp = bpt; |
| 597 | char *ep = exitmsg; |
| 598 | |
| 599 | /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. |
| 600 | */ |
| 601 | char swallowed[50]; |
| 602 | |
| 603 | /* Current position in swallowed. */ |
| 604 | char *swallowed_p = swallowed; |
| 605 | |
| 606 | int ch; |
| 607 | int ch_handled; |
| 608 | int old_timeout = timeout; |
| 609 | int |
| 610 | old_immediate_quit = immediate_quit; |
| 611 | int swallowed_cr = 0; |
| 612 | |
| 613 | status->kind = TARGET_WAITKIND_EXITED; |
| 614 | status->value.integer = 0; |
| 615 | |
| 616 | if (need_artificial_trap != 0) |
| 617 | { |
| 618 | status->kind = |
| 619 | TARGET_WAITKIND_STOPPED; |
| 620 | status->value.sig = TARGET_SIGNAL_TRAP; |
| 621 | need_artificial_trap--; |
| 622 | return 0; |
| 623 | } |
| 624 | |
| 625 | timeout = 5; /* Don't time out for a while - user program is running. |
| 626 | */ |
| 627 | immediate_quit = 1; /* Helps ability to QUIT */ |
| 628 | while (1) |
| 629 | { |
| 630 | QUIT; /* Let user quit and leave process running */ |
| 631 | ch_handled = 0; |
| 632 | ch = readchar (); |
| 633 | if (ch == *bp) |
| 634 | { |
| 635 | bp++; |
| 636 | if (*bp == '\0') |
| 637 | break; |
| 638 | ch_handled = 1; |
| 639 | |
| 640 | *swallowed_p++ = ch; |
| 641 | } |
| 642 | else |
| 643 | { |
| 644 | bp = bpt; |
| 645 | } |
| 646 | if |
| 647 | (ch == *ep || *ep == '?') |
| 648 | { |
| 649 | ep++; |
| 650 | if (*ep == '\0') |
| 651 | break; |
| 652 | |
| 653 | if (!ch_handled) |
| 654 | *swallowed_p++ = ch; |
| 655 | ch_handled = |
| 656 | 1; |
| 657 | } |
| 658 | else |
| 659 | { |
| 660 | ep = exitmsg; |
| 661 | } |
| 662 | |
| 663 | if (!ch_handled) |
| 664 | { |
| 665 | char *p; |
| 666 | |
| 667 | /* Print out any characters which have been swallowed. */ |
| 668 | for (p = swallowed; p < swallowed_p; ++p) |
| 669 | putchar_unfiltered (*p); |
| 670 | swallowed_p = swallowed; |
| 671 | |
| 672 | if ((ch != '\r' && ch != '\n') || swallowed_cr > 10) |
| 673 | { |
| 674 | putchar_unfiltered (ch); |
| 675 | swallowed_cr = 10; |
| 676 | } |
| 677 | swallowed_cr++; |
| 678 | |
| 679 | } |
| 680 | } |
| 681 | if (*bp == '\0') |
| 682 | { |
| 683 | status->kind = TARGET_WAITKIND_STOPPED; |
| 684 | status->value.sig = TARGET_SIGNAL_TRAP; |
| 685 | expect_prompt (); |
| 686 | } |
| 687 | else |
| 688 | { |
| 689 | status->kind = TARGET_WAITKIND_EXITED; |
| 690 | status->value.integer = |
| 691 | TARGET_SIGNAL_STOP; |
| 692 | } |
| 693 | |
| 694 | timeout = old_timeout; |
| 695 | immediate_quit = old_immediate_quit; |
| 696 | return |
| 697 | 0; |
| 698 | } |
| 699 | |
| 700 | /* Return the name of register number REGNO in the form input and |
| 701 | output by hms. |
| 702 | |
| 703 | Returns a pointer to a static buffer containing the answer. */ |
| 704 | static char * |
| 705 | get_reg_name (regno) |
| 706 | int regno; |
| 707 | { |
| 708 | static char *rn[] = |
| 709 | REGISTER_NAMES; |
| 710 | |
| 711 | return rn[regno]; |
| 712 | } |
| 713 | |
| 714 | /* Read the remote registers. */ |
| 715 | |
| 716 | static int |
| 717 | gethex (length, start, ok) |
| 718 | unsigned int length; |
| 719 | char *start; |
| 720 | int *ok; |
| 721 | { |
| 722 | int result = 0; |
| 723 | |
| 724 | while (length--) |
| 725 | { |
| 726 | result <<= 4; |
| 727 | if (*start >= 'a' && *start <= 'f') |
| 728 | { |
| 729 | result += *start - 'a' + 10; |
| 730 | } |
| 731 | else if (*start >= 'A' && |
| 732 | *start <= 'F') |
| 733 | { |
| 734 | result += *start - 'A' + 10; |
| 735 | } |
| 736 | else if |
| 737 | (*start >= '0' && *start <= '9') |
| 738 | { |
| 739 | result += *start - '0'; |
| 740 | } |
| 741 | else |
| 742 | *ok = 0; |
| 743 | start++; |
| 744 | |
| 745 | } |
| 746 | return result; |
| 747 | } |
| 748 | static int |
| 749 | timed_read (buf, n, timeout) |
| 750 | char |
| 751 | *buf; |
| 752 | |
| 753 | { |
| 754 | int i; |
| 755 | char c; |
| 756 | |
| 757 | i = 0; |
| 758 | while (i < n) |
| 759 | { |
| 760 | c = readchar (); |
| 761 | |
| 762 | if (c == 0) |
| 763 | return i; |
| 764 | buf[i] = c; |
| 765 | i++; |
| 766 | |
| 767 | } |
| 768 | return i; |
| 769 | } |
| 770 | |
| 771 | hms_write (a, l) |
| 772 | char *a; |
| 773 | { |
| 774 | int i; |
| 775 | |
| 776 | SERIAL_WRITE (desc, a, l); |
| 777 | |
| 778 | if (!quiet || remote_debug) |
| 779 | { |
| 780 | printf_unfiltered ("<"); |
| 781 | for (i = 0; i < l; i++) |
| 782 | { |
| 783 | printf_unfiltered ("%c", a[i]); |
| 784 | } |
| 785 | printf_unfiltered (">"); |
| 786 | } |
| 787 | } |
| 788 | |
| 789 | hms_write_cr (s) |
| 790 | char *s; |
| 791 | { |
| 792 | hms_write (s, strlen (s)); |
| 793 | hms_write ("\r\n", 2); |
| 794 | } |
| 795 | |
| 796 | #ifdef GDB_TARGET_IS_H8500 |
| 797 | |
| 798 | /* H8/500 monitor reg dump looks like: |
| 799 | |
| 800 | HMS>r |
| 801 | PC:8000 SR:070C .7NZ.. CP:00 DP:00 EP:00 TP:00 BR:00 |
| 802 | R0-R7: FF5A 0001 F4FE F500 0000 F528 F528 F4EE |
| 803 | HMS> |
| 804 | |
| 805 | |
| 806 | */ |
| 807 | |
| 808 | supply_val (n, size, ptr, segptr) |
| 809 | int n; |
| 810 | int size; |
| 811 | char *ptr; |
| 812 | char *segptr; |
| 813 | { |
| 814 | int ok; |
| 815 | char raw[4]; |
| 816 | switch (size) |
| 817 | { |
| 818 | case 2: |
| 819 | raw[0] = gethex (2, ptr, &ok); |
| 820 | raw[1] = gethex (2, ptr + 2, &ok); |
| 821 | supply_register (n, raw); |
| 822 | break; |
| 823 | case 1: |
| 824 | raw[0] = gethex (2, ptr, &ok); |
| 825 | supply_register (n, raw); |
| 826 | break; |
| 827 | case 4: |
| 828 | { |
| 829 | int v = gethex (4, ptr, &ok); |
| 830 | v |= gethex (2, segptr, &ok) << 16; |
| 831 | raw[0] = 0; |
| 832 | raw[1] = (v >> 16) & 0xff; |
| 833 | raw[2] = (v >> 8) & 0xff; |
| 834 | raw[3] = (v >> 0) & 0xff; |
| 835 | supply_register (n, raw); |
| 836 | } |
| 837 | } |
| 838 | |
| 839 | } |
| 840 | static void |
| 841 | hms_fetch_register (dummy) |
| 842 | int dummy; |
| 843 | { |
| 844 | #define REGREPLY_SIZE 108 |
| 845 | char linebuf[REGREPLY_SIZE + 1]; |
| 846 | int i; |
| 847 | int s; |
| 848 | int gottok; |
| 849 | |
| 850 | LONGEST reg[NUM_REGS]; |
| 851 | check_open (); |
| 852 | |
| 853 | do |
| 854 | { |
| 855 | |
| 856 | hms_write_cr ("r"); |
| 857 | expect ("r"); |
| 858 | s = timed_read (linebuf + 1, REGREPLY_SIZE, 1); |
| 859 | |
| 860 | linebuf[REGREPLY_SIZE] = 0; |
| 861 | gottok = 0; |
| 862 | if (linebuf[3] == 'P' && |
| 863 | linebuf[4] == 'C' && |
| 864 | linebuf[5] == ':' && |
| 865 | linebuf[105] == 'H' && |
| 866 | linebuf[106] == 'M' && |
| 867 | linebuf[107] == 'S') |
| 868 | { |
| 869 | |
| 870 | /* |
| 871 | 012 |
| 872 | r** |
| 873 | -------1---------2---------3---------4---------5----- |
| 874 | 345678901234567890123456789012345678901234567890123456 |
| 875 | PC:8000 SR:070C .7NZ.. CP:00 DP:00 EP:00 TP:00 BR:00** |
| 876 | ---6---------7---------8---------9--------10---- |
| 877 | 789012345678901234567890123456789012345678901234 |
| 878 | R0-R7: FF5A 0001 F4FE F500 0000 F528 F528 F4EE** |
| 879 | |
| 880 | 56789 |
| 881 | HMS> |
| 882 | */ |
| 883 | gottok = 1; |
| 884 | |
| 885 | |
| 886 | supply_val (PC_REGNUM, 4, linebuf + 6, linebuf + 29); |
| 887 | |
| 888 | supply_val (CCR_REGNUM, 2, linebuf + 14); |
| 889 | supply_val (SEG_C_REGNUM, 1, linebuf + 29); |
| 890 | supply_val (SEG_D_REGNUM, 1, linebuf + 35); |
| 891 | supply_val (SEG_E_REGNUM, 1, linebuf + 41); |
| 892 | supply_val (SEG_T_REGNUM, 1, linebuf + 47); |
| 893 | for (i = 0; i < 8; i++) |
| 894 | { |
| 895 | static int sr[8] = |
| 896 | {35, 35, 35, 35, |
| 897 | 41, 41, 47, 47}; |
| 898 | |
| 899 | char raw[4]; |
| 900 | char *src = linebuf + 64 + 5 * i; |
| 901 | char *segsrc = linebuf + sr[i]; |
| 902 | supply_val (R0_REGNUM + i, 2, src); |
| 903 | supply_val (PR0_REGNUM + i, 4, src, segsrc); |
| 904 | } |
| 905 | } |
| 906 | if (!gottok) |
| 907 | { |
| 908 | hms_write_cr (""); |
| 909 | expect ("HMS>"); |
| 910 | } |
| 911 | } |
| 912 | while (!gottok); |
| 913 | } |
| 914 | #endif |
| 915 | |
| 916 | #ifdef GDB_TARGET_IS_H8300 |
| 917 | static void |
| 918 | hms_fetch_register (dummy) |
| 919 | int dummy; |
| 920 | { |
| 921 | #define REGREPLY_SIZE 79 |
| 922 | char linebuf[REGREPLY_SIZE + 1]; |
| 923 | int i; |
| 924 | int s; |
| 925 | int gottok; |
| 926 | |
| 927 | unsigned LONGEST reg[NUM_REGS]; |
| 928 | |
| 929 | check_open (); |
| 930 | |
| 931 | do |
| 932 | { |
| 933 | hms_write_cr ("r"); |
| 934 | |
| 935 | s = timed_read (linebuf, 1, 1); |
| 936 | |
| 937 | while (linebuf[0] != 'r') |
| 938 | s = timed_read (linebuf, 1, 1); |
| 939 | |
| 940 | s = timed_read (linebuf + 1, REGREPLY_SIZE - 1, 1); |
| 941 | |
| 942 | linebuf[REGREPLY_SIZE] = 0; |
| 943 | gottok = 0; |
| 944 | if (linebuf[0] == 'r' && |
| 945 | linebuf[3] == 'P' && |
| 946 | linebuf[4] == 'C' && |
| 947 | linebuf[5] == '=' && |
| 948 | linebuf[75] == 'H' && |
| 949 | linebuf[76] == 'M' && |
| 950 | linebuf[77] == 'S') |
| 951 | { |
| 952 | /* |
| 953 | PC=XXXX CCR=XX:XXXXXXXX R0-R7= XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX |
| 954 | 5436789012345678901234567890123456789012345678901234567890123456789012 |
| 955 | 0 1 2 3 4 5 6 |
| 956 | */ |
| 957 | gottok = 1; |
| 958 | |
| 959 | reg[PC_REGNUM] = gethex (4, linebuf + 6, &gottok); |
| 960 | reg[CCR_REGNUM] = gethex (2, linebuf + 15, &gottok); |
| 961 | for (i = 0; i < 8; i++) |
| 962 | { |
| 963 | reg[i] = gethex (4, linebuf + 34 + 5 * i, &gottok); |
| 964 | } |
| 965 | } |
| 966 | } |
| 967 | while (!gottok); |
| 968 | for (i = 0; i < NUM_REGS; i++) |
| 969 | { |
| 970 | char swapped[2]; |
| 971 | |
| 972 | swapped[1] = reg[i]; |
| 973 | swapped[0] = (reg[i]) >> 8; |
| 974 | |
| 975 | supply_register (i, swapped); |
| 976 | } |
| 977 | } |
| 978 | #endif |
| 979 | /* Store register REGNO, or all if REGNO == -1. |
| 980 | Return errno value. */ |
| 981 | static void |
| 982 | hms_store_register (regno) |
| 983 | int regno; |
| 984 | { |
| 985 | if (regno == -1) |
| 986 | { |
| 987 | for (regno = 0; regno < NUM_REGS; regno++) |
| 988 | { |
| 989 | hms_store_register (regno); |
| 990 | } |
| 991 | } |
| 992 | else |
| 993 | { |
| 994 | char *name = get_reg_name (regno); |
| 995 | char buffer[100]; |
| 996 | /* Some regs dont really exist */ |
| 997 | if (!(name[0] == 'p' && name[1] == 'r') |
| 998 | && !(name[0] == 'c' && name[1] == 'y') |
| 999 | && !(name[0] == 't' && name[1] == 'i') |
| 1000 | && !(name[0] == 'i' && name[1] == 'n')) |
| 1001 | { |
| 1002 | sprintf (buffer, "r %s=%x", name, read_register (regno)); |
| 1003 | hms_write_cr (buffer); |
| 1004 | expect_prompt (); |
| 1005 | } |
| 1006 | } |
| 1007 | } |
| 1008 | |
| 1009 | |
| 1010 | /* Get ready to modify the registers array. On machines which store |
| 1011 | individual registers, this doesn't need to do anything. On machines |
| 1012 | which store all the registers in one fell swoop, this makes sure |
| 1013 | that registers contains all the registers from the program being |
| 1014 | debugged. */ |
| 1015 | |
| 1016 | void |
| 1017 | hms_prepare_to_store () |
| 1018 | { |
| 1019 | /* Do nothing, since we can store individual regs */ |
| 1020 | } |
| 1021 | |
| 1022 | static CORE_ADDR |
| 1023 | translate_addr (addr) |
| 1024 | CORE_ADDR addr; |
| 1025 | { |
| 1026 | |
| 1027 | return (addr); |
| 1028 | |
| 1029 | } |
| 1030 | |
| 1031 | |
| 1032 | int |
| 1033 | hms_xfer_inferior_memory (memaddr, myaddr, len, write, target) |
| 1034 | CORE_ADDR memaddr; |
| 1035 | char *myaddr; |
| 1036 | int len; |
| 1037 | int write; |
| 1038 | struct target_ops *target; /* ignored */ |
| 1039 | { |
| 1040 | |
| 1041 | return len; |
| 1042 | } |
| 1043 | |
| 1044 | int |
| 1045 | hms_write_inferior_memory (memaddr, myaddr, len) |
| 1046 | CORE_ADDR memaddr; |
| 1047 | unsigned char *myaddr; |
| 1048 | int len; |
| 1049 | { |
| 1050 | bfd_vma addr; |
| 1051 | int done; |
| 1052 | int todo; |
| 1053 | char buffer[100]; |
| 1054 | done = 0; |
| 1055 | hms_write_cr ("."); |
| 1056 | expect_prompt (); |
| 1057 | while (done < len) |
| 1058 | { |
| 1059 | char *ptr = buffer; |
| 1060 | int thisgo; |
| 1061 | int idx; |
| 1062 | |
| 1063 | thisgo = len - done; |
| 1064 | if (thisgo > 20) |
| 1065 | thisgo = 20; |
| 1066 | |
| 1067 | sprintf (ptr, "M.B %4x =", memaddr + done); |
| 1068 | ptr += 10; |
| 1069 | for (idx = 0; idx < thisgo; idx++) |
| 1070 | { |
| 1071 | sprintf (ptr, "%2x ", myaddr[idx + done]); |
| 1072 | ptr += 3; |
| 1073 | } |
| 1074 | hms_write_cr (buffer); |
| 1075 | expect_prompt (); |
| 1076 | done += thisgo; |
| 1077 | } |
| 1078 | } |
| 1079 | |
| 1080 | void |
| 1081 | hms_files_info () |
| 1082 | { |
| 1083 | char *file = "nothing"; |
| 1084 | |
| 1085 | if (exec_bfd) |
| 1086 | file = bfd_get_filename (exec_bfd); |
| 1087 | |
| 1088 | if (exec_bfd) |
| 1089 | #ifdef __GO32__ |
| 1090 | printf_filtered ("\tAttached to DOS asynctsr and running program %s\n", file); |
| 1091 | #else |
| 1092 | printf_filtered ("\tAttached to %s at %d baud and running program %s\n", dev_name, baudrate, file); |
| 1093 | #endif |
| 1094 | printf_filtered ("\ton an H8/300 processor.\n"); |
| 1095 | } |
| 1096 | |
| 1097 | /* Copy LEN bytes of data from debugger memory at MYADDR |
| 1098 | to inferior's memory at MEMADDR. Returns errno value. |
| 1099 | * sb/sh instructions don't work on unaligned addresses, when TU=1. |
| 1100 | */ |
| 1101 | |
| 1102 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result |
| 1103 | at debugger address MYADDR. Returns errno value. */ |
| 1104 | int |
| 1105 | hms_read_inferior_memory (memaddr, myaddr, len) |
| 1106 | CORE_ADDR memaddr; |
| 1107 | char *myaddr; |
| 1108 | int len; |
| 1109 | { |
| 1110 | /* Align to nearest low 16 bits */ |
| 1111 | int i; |
| 1112 | |
| 1113 | CORE_ADDR start = memaddr; |
| 1114 | CORE_ADDR end = memaddr + len - 1; |
| 1115 | |
| 1116 | int ok = 1; |
| 1117 | |
| 1118 | /* |
| 1119 | AAAA: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX '................' |
| 1120 | 012345678901234567890123456789012345678901234567890123456789012345 |
| 1121 | 0 1 2 3 4 5 6 |
| 1122 | */ |
| 1123 | char buffer[66]; |
| 1124 | |
| 1125 | if (memaddr & 0xf) |
| 1126 | abort (); |
| 1127 | if (len != 16) |
| 1128 | abort (); |
| 1129 | |
| 1130 | sprintf (buffer, "m %4x %4x", start & 0xffff, end & 0xffff); |
| 1131 | |
| 1132 | flush (); |
| 1133 | hms_write_cr (buffer); |
| 1134 | /* drop the echo and newline */ |
| 1135 | for (i = 0; i < 13; i++) |
| 1136 | readchar (); |
| 1137 | |
| 1138 | /* Grab the lines as they come out and fill the area */ |
| 1139 | /* Skip over cr */ |
| 1140 | while (1) |
| 1141 | { |
| 1142 | int p; |
| 1143 | int i; |
| 1144 | int addr; |
| 1145 | size_t idx; |
| 1146 | |
| 1147 | char byte[16]; |
| 1148 | |
| 1149 | buffer[0] = readchar (); |
| 1150 | while (buffer[0] == '\r' |
| 1151 | || buffer[0] == '\n') |
| 1152 | buffer[0] = readchar (); |
| 1153 | |
| 1154 | if (buffer[0] == 'M') |
| 1155 | break; |
| 1156 | |
| 1157 | for (i = 1; i < 50; i++) |
| 1158 | { |
| 1159 | buffer[i] = readchar (); |
| 1160 | } |
| 1161 | /* sometimes we loose characters in the ascii representation of the |
| 1162 | data. I don't know where. So just scan for the end of line */ |
| 1163 | i = readchar (); |
| 1164 | while (i != '\n' && i != '\r') |
| 1165 | i = readchar (); |
| 1166 | |
| 1167 | /* Now parse the line */ |
| 1168 | |
| 1169 | addr = gethex (4, buffer, &ok); |
| 1170 | idx = 6; |
| 1171 | for (p = 0; p < 16; p += 2) |
| 1172 | { |
| 1173 | byte[p] = gethex (2, buffer + idx, &ok); |
| 1174 | byte[p + 1] = gethex (2, buffer + idx + 2, &ok); |
| 1175 | idx += 5; |
| 1176 | } |
| 1177 | |
| 1178 | for (p = 0; p < 16; p++) |
| 1179 | { |
| 1180 | if (addr + p >= memaddr && |
| 1181 | addr + p < memaddr + len) |
| 1182 | { |
| 1183 | myaddr[(addr + p) - memaddr] = byte[p]; |
| 1184 | |
| 1185 | } |
| 1186 | |
| 1187 | } |
| 1188 | } |
| 1189 | #ifdef GDB_TARGET_IS_H8500 |
| 1190 | expect ("ore>"); |
| 1191 | #endif |
| 1192 | #ifdef GDB_TARGET_IS_H8300 |
| 1193 | expect ("emory>"); |
| 1194 | #endif |
| 1195 | hms_write_cr ("."); |
| 1196 | |
| 1197 | expect_prompt (); |
| 1198 | return len; |
| 1199 | } |
| 1200 | |
| 1201 | |
| 1202 | |
| 1203 | #define MAX_BREAKS 16 |
| 1204 | static int num_brkpts = 0; |
| 1205 | static int |
| 1206 | hms_insert_breakpoint (addr, save) |
| 1207 | CORE_ADDR addr; |
| 1208 | char *save; /* Throw away, let hms save instructions */ |
| 1209 | { |
| 1210 | check_open (); |
| 1211 | |
| 1212 | if (num_brkpts < MAX_BREAKS) |
| 1213 | { |
| 1214 | char buffer[100]; |
| 1215 | |
| 1216 | num_brkpts++; |
| 1217 | sprintf (buffer, "b %x", addr & 0xffff); |
| 1218 | hms_write_cr (buffer); |
| 1219 | expect_prompt (); |
| 1220 | return (0); |
| 1221 | } |
| 1222 | else |
| 1223 | { |
| 1224 | fprintf_filtered (gdb_stderr, |
| 1225 | "Too many break points, break point not installed\n"); |
| 1226 | return (1); |
| 1227 | } |
| 1228 | |
| 1229 | } |
| 1230 | static int |
| 1231 | hms_remove_breakpoint (addr, save) |
| 1232 | CORE_ADDR addr; |
| 1233 | char *save; /* Throw away, let hms save instructions */ |
| 1234 | { |
| 1235 | if (num_brkpts > 0) |
| 1236 | { |
| 1237 | char buffer[100]; |
| 1238 | |
| 1239 | num_brkpts--; |
| 1240 | sprintf (buffer, "b - %x", addr & 0xffff); |
| 1241 | hms_write_cr (buffer); |
| 1242 | expect_prompt (); |
| 1243 | |
| 1244 | } |
| 1245 | return (0); |
| 1246 | } |
| 1247 | |
| 1248 | /* Clear the hmss notion of what the break points are */ |
| 1249 | static int |
| 1250 | hms_clear_breakpoints () |
| 1251 | { |
| 1252 | |
| 1253 | if (is_open) |
| 1254 | { |
| 1255 | hms_write_cr ("b -"); |
| 1256 | expect_prompt (); |
| 1257 | } |
| 1258 | num_brkpts = 0; |
| 1259 | } |
| 1260 | static void |
| 1261 | hms_mourn () |
| 1262 | { |
| 1263 | hms_clear_breakpoints (); |
| 1264 | unpush_target (&hms_ops); |
| 1265 | generic_mourn_inferior (); |
| 1266 | } |
| 1267 | |
| 1268 | /* Put a command string, in args, out to the hms. The hms is assumed to |
| 1269 | be in raw mode, all writing/reading done through desc. |
| 1270 | Ouput from the hms is placed on the users terminal until the |
| 1271 | prompt from the hms is seen. |
| 1272 | FIXME: Can't handle commands that take input. */ |
| 1273 | |
| 1274 | void |
| 1275 | hms_com (args, fromtty) |
| 1276 | char *args; |
| 1277 | int fromtty; |
| 1278 | { |
| 1279 | check_open (); |
| 1280 | |
| 1281 | if (!args) |
| 1282 | return; |
| 1283 | |
| 1284 | /* Clear all input so only command relative output is displayed */ |
| 1285 | |
| 1286 | hms_write_cr (args); |
| 1287 | /* hms_write ("\030", 1); */ |
| 1288 | expect_prompt (); |
| 1289 | } |
| 1290 | |
| 1291 | static void |
| 1292 | hms_open (name, from_tty) |
| 1293 | char *name; |
| 1294 | int from_tty; |
| 1295 | { |
| 1296 | unsigned int prl; |
| 1297 | char *p; |
| 1298 | |
| 1299 | if (name == 0) |
| 1300 | { |
| 1301 | name = ""; |
| 1302 | } |
| 1303 | if (is_open) |
| 1304 | hms_close (0); |
| 1305 | dev_name = strdup (name); |
| 1306 | |
| 1307 | if (!(desc = SERIAL_OPEN (dev_name))) |
| 1308 | perror_with_name ((char *) dev_name); |
| 1309 | |
| 1310 | SERIAL_RAW (desc); |
| 1311 | is_open = 1; |
| 1312 | push_target (&hms_ops); |
| 1313 | dcache_ptr = dcache_init (hms_read_inferior_memory, |
| 1314 | hms_write_inferior_memory); |
| 1315 | remote_dcache = 1; |
| 1316 | /* Hello? Are you there? */ |
| 1317 | SERIAL_WRITE (desc, "\r\n", 2); |
| 1318 | expect_prompt (); |
| 1319 | |
| 1320 | /* Clear any break points */ |
| 1321 | hms_clear_breakpoints (); |
| 1322 | |
| 1323 | printf_filtered ("Connected to remote board running HMS monitor.\n"); |
| 1324 | add_commands (); |
| 1325 | /* hms_drain (); */ |
| 1326 | } |
| 1327 | |
| 1328 | /* Define the target subroutine names */ |
| 1329 | |
| 1330 | struct target_ops hms_ops = |
| 1331 | { |
| 1332 | "hms", "Remote HMS monitor", |
| 1333 | "Use the H8 evaluation board running the HMS monitor connected\n\ |
| 1334 | by a serial line.", |
| 1335 | |
| 1336 | hms_open, hms_close, |
| 1337 | 0, hms_detach, hms_resume, hms_wait, /* attach */ |
| 1338 | hms_fetch_register, hms_store_register, |
| 1339 | hms_prepare_to_store, |
| 1340 | hms_xfer_inferior_memory, |
| 1341 | hms_files_info, |
| 1342 | hms_insert_breakpoint, hms_remove_breakpoint, /* Breakpoints */ |
| 1343 | 0, 0, 0, 0, 0, /* Terminal handling */ |
| 1344 | hms_kill, /* FIXME, kill */ |
| 1345 | gr_load_image, |
| 1346 | 0, /* lookup_symbol */ |
| 1347 | hms_create_inferior, /* create_inferior */ |
| 1348 | hms_mourn, /* mourn_inferior FIXME */ |
| 1349 | 0, /* can_run */ |
| 1350 | 0, /* notice_signals */ |
| 1351 | 0, /* to_stop */ |
| 1352 | process_stratum, 0, /* next */ |
| 1353 | 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */ |
| 1354 | 0, 0, /* Section pointers */ |
| 1355 | OPS_MAGIC, /* Always the last thing */ |
| 1356 | }; |
| 1357 | |
| 1358 | hms_quiet () /* FIXME - this routine can be removed after Dec '94 */ |
| 1359 | { |
| 1360 | quiet = !quiet; |
| 1361 | if (quiet) |
| 1362 | printf_filtered ("Snoop disabled\n"); |
| 1363 | else |
| 1364 | printf_filtered ("Snoop enabled\n"); |
| 1365 | |
| 1366 | printf_filtered ("`snoop' is obsolete, please use `set remotedebug'.\n"); |
| 1367 | } |
| 1368 | |
| 1369 | hms_device (s) |
| 1370 | char *s; |
| 1371 | { |
| 1372 | if (s) |
| 1373 | { |
| 1374 | dev_name = get_word (&s); |
| 1375 | } |
| 1376 | } |
| 1377 | |
| 1378 | static |
| 1379 | hms_speed (s) |
| 1380 | char *s; |
| 1381 | { |
| 1382 | check_open (); |
| 1383 | |
| 1384 | if (s) |
| 1385 | { |
| 1386 | char buffer[100]; |
| 1387 | int newrate = atoi (s); |
| 1388 | int which = 0; |
| 1389 | |
| 1390 | if (SERIAL_SETBAUDRATE (desc, newrate)) |
| 1391 | error ("Can't use %d baud\n", newrate); |
| 1392 | |
| 1393 | printf_filtered ("Checking target is in sync\n"); |
| 1394 | |
| 1395 | printf_filtered ("Sending commands to set target to %d\n", |
| 1396 | baudrate); |
| 1397 | |
| 1398 | sprintf (buffer, "tm %d. N 8 1", baudrate); |
| 1399 | hms_write_cr (buffer); |
| 1400 | } |
| 1401 | } |
| 1402 | |
| 1403 | /***********************************************************************/ |
| 1404 | |
| 1405 | static void |
| 1406 | hms_drain (args, fromtty) |
| 1407 | char *args; |
| 1408 | int fromtty; |
| 1409 | { |
| 1410 | int c; |
| 1411 | while (1) |
| 1412 | { |
| 1413 | c = SERIAL_READCHAR (desc, 1); |
| 1414 | if (c == SERIAL_TIMEOUT) |
| 1415 | break; |
| 1416 | if (c == SERIAL_ERROR) |
| 1417 | break; |
| 1418 | if (c > ' ' && c < 127) |
| 1419 | printf ("%c", c & 0xff); |
| 1420 | else |
| 1421 | printf ("<%x>", c & 0xff); |
| 1422 | } |
| 1423 | } |
| 1424 | |
| 1425 | static void |
| 1426 | add_commands () |
| 1427 | { |
| 1428 | |
| 1429 | add_com ("hms_drain", class_obscure, hms_drain, |
| 1430 | "Drain pending hms text buffers."); |
| 1431 | } |
| 1432 | |
| 1433 | static void |
| 1434 | remove_commands () |
| 1435 | { |
| 1436 | extern struct cmd_list_element *cmdlist; |
| 1437 | delete_cmd ("hms-drain", &cmdlist); |
| 1438 | } |
| 1439 | |
| 1440 | |
| 1441 | void |
| 1442 | _initialize_remote_hms () |
| 1443 | { |
| 1444 | add_target (&hms_ops); |
| 1445 | |
| 1446 | add_com ("hms <command>", class_obscure, hms_com, |
| 1447 | "Send a command to the HMS monitor."); |
| 1448 | |
| 1449 | /* FIXME - hms_quiet and `snoop' can be removed after Dec '94 */ |
| 1450 | add_com ("snoop", class_obscure, hms_quiet, |
| 1451 | "Show what commands are going to the monitor (OBSOLETE - see 'set remotedebug')"); |
| 1452 | |
| 1453 | add_com ("device", class_obscure, hms_device, |
| 1454 | "Set the terminal line for HMS communications"); |
| 1455 | |
| 1456 | add_com ("speed", class_obscure, hms_speed, |
| 1457 | "Set the terminal line speed for HMS communications"); |
| 1458 | |
| 1459 | dev_name = NULL; |
| 1460 | } |
| 1461 | #endif |
| 1462 | |