| 1 | /* Remote debugging interface for Hitachi E7000 ICE, for GDB. |
| 2 | Copyright 1993 Free Software Foundation, Inc. |
| 3 | Contributed by Cygnus Support. Written by Steve Chamberlain for Cygnus. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 20 | |
| 21 | |
| 22 | #include "defs.h" |
| 23 | #include "gdbcore.h" |
| 24 | #include "target.h" |
| 25 | #include "wait.h" |
| 26 | #include <varargs.h> |
| 27 | #include <signal.h> |
| 28 | #include <string.h> |
| 29 | #include <sys/types.h> |
| 30 | #include "serial.h" |
| 31 | |
| 32 | |
| 33 | /* The E7000 is an in-circuit emulator for the Hitachi H8/300-H and |
| 34 | Hitachi-SH processor. It has serial port and a lan port. |
| 35 | |
| 36 | The monitor command set makes it difficult to load large ammounts of |
| 37 | data over the lan without using ftp - so try not to issue load |
| 38 | commands when communicating over ethernet; use the ftpload command. |
| 39 | |
| 40 | The monitor pauses for a second when dumping srecords to the serial |
| 41 | line too, so we use a slower per byte mechanism but without the |
| 42 | startup overhead. Even so, it's pretty slow... */ |
| 43 | |
| 44 | int using_tcp; /* nonzero if using the tcp serial driver */ |
| 45 | |
| 46 | extern struct target_ops e7000_ops; /* Forward declaration */ |
| 47 | #define CTRLC 0x03 |
| 48 | #define ENQ 0x05 |
| 49 | #define ACK 0x06 |
| 50 | #define CTRLZ 0x1a |
| 51 | |
| 52 | char *ENQSTRING = "\005"; |
| 53 | |
| 54 | int echo; |
| 55 | static int echo_index; |
| 56 | static void e7000_close (); |
| 57 | static void e7000_fetch_register (); |
| 58 | static void e7000_store_register (); |
| 59 | |
| 60 | static int timeout = 5; |
| 61 | |
| 62 | static void expect PARAMS ((char *)); |
| 63 | static void expect_full_prompt PARAMS (()); |
| 64 | static void expect_prompt PARAMS (()); |
| 65 | static serial_t e7000_desc; |
| 66 | |
| 67 | |
| 68 | /* Send data to e7000debug. Works just like printf. */ |
| 69 | |
| 70 | static void |
| 71 | printf_e7000debug (va_alist) |
| 72 | va_dcl |
| 73 | { |
| 74 | va_list args; |
| 75 | char *pattern; |
| 76 | char buf[200]; |
| 77 | |
| 78 | va_start (args); |
| 79 | |
| 80 | pattern = va_arg (args, char *); |
| 81 | |
| 82 | vsprintf (buf, pattern, args); |
| 83 | if (SERIAL_WRITE (e7000_desc, buf, strlen (buf))) |
| 84 | fprintf (stderr, "SERIAL_WRITE failed: %s\n", safe_strerror (errno)); |
| 85 | |
| 86 | /* And expect to see it echoed */ |
| 87 | expect (buf); |
| 88 | } |
| 89 | |
| 90 | static void |
| 91 | putchar_e7000 (x) |
| 92 | { |
| 93 | char b[1]; |
| 94 | b[0] = x; |
| 95 | SERIAL_WRITE (e7000_desc, b, 1); |
| 96 | } |
| 97 | |
| 98 | static void |
| 99 | write_e7000 (s) |
| 100 | char *s; |
| 101 | { |
| 102 | SERIAL_WRITE (e7000_desc, s, strlen (s)); |
| 103 | } |
| 104 | |
| 105 | /* Read a character from the remote system, doing all the fancy timeout |
| 106 | stuff. */ |
| 107 | |
| 108 | static int |
| 109 | readchar (timeout) |
| 110 | int timeout; |
| 111 | { |
| 112 | int c; |
| 113 | do |
| 114 | { |
| 115 | c = SERIAL_READCHAR (e7000_desc, timeout); |
| 116 | } |
| 117 | while (c > 127); |
| 118 | if (c == SERIAL_TIMEOUT) |
| 119 | { |
| 120 | if (timeout == 0) |
| 121 | return c; /* Polls shouldn't generate timeout errors */ |
| 122 | |
| 123 | error ("Timeout reading from remote system."); |
| 124 | } |
| 125 | return c; |
| 126 | } |
| 127 | |
| 128 | /* Scan input from the remote system, until STRING is found. If DISCARD is |
| 129 | non-zero, then discard non-matching input, else print it out. |
| 130 | Let the user break out immediately. */ |
| 131 | static void |
| 132 | expect (string) |
| 133 | char *string; |
| 134 | { |
| 135 | char *p = string; |
| 136 | int c; |
| 137 | |
| 138 | immediate_quit = 1; |
| 139 | while (1) |
| 140 | |
| 141 | { |
| 142 | c = readchar (timeout); |
| 143 | if (c == SERIAL_ERROR) |
| 144 | { |
| 145 | error ("Serial communication error"); |
| 146 | } |
| 147 | if (echo_index) |
| 148 | { |
| 149 | if (c != '\r') |
| 150 | putchar (c); |
| 151 | fflush (stdout); |
| 152 | } |
| 153 | if (c == *p++) |
| 154 | { |
| 155 | if (*p == '\0') |
| 156 | { |
| 157 | immediate_quit = 0; |
| 158 | return; |
| 159 | } |
| 160 | } |
| 161 | else |
| 162 | { |
| 163 | p = string; |
| 164 | } |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | /* Keep discarding input until we see the e7000 prompt. |
| 169 | |
| 170 | The convention for dealing with the prompt is that you |
| 171 | o give your command |
| 172 | o *then* wait for the prompt. |
| 173 | |
| 174 | Thus the last thing that a procedure does with the serial line |
| 175 | will be an expect_prompt(). Exception: e7000_resume does not |
| 176 | wait for the prompt, because the terminal is being handed over |
| 177 | to the inferior. However, the next thing which happens after that |
| 178 | is a e7000_wait which does wait for the prompt. |
| 179 | Note that this includes abnormal exit, e.g. error(). This is |
| 180 | necessary to prevent getting into states from which we can't |
| 181 | recover. */ |
| 182 | static void |
| 183 | expect_prompt () |
| 184 | { |
| 185 | #if defined (LOG_FILE) |
| 186 | /* This is a convenient place to do this. The idea is to do it often |
| 187 | enough that we never lose much data if we terminate abnormally. */ |
| 188 | fflush (log_file); |
| 189 | #endif |
| 190 | expect (":"); |
| 191 | } |
| 192 | static void |
| 193 | expect_full_prompt () |
| 194 | { |
| 195 | #if defined (LOG_FILE) |
| 196 | /* This is a convenient place to do this. The idea is to do it often |
| 197 | enough that we never lose much data if we terminate abnormally. */ |
| 198 | fflush (log_file); |
| 199 | #endif |
| 200 | expect ("\n:"); |
| 201 | } |
| 202 | |
| 203 | static int |
| 204 | get_hex_digit (ch) |
| 205 | { |
| 206 | if (ch >= '0' && ch <= '9') |
| 207 | return ch - '0'; |
| 208 | else if (ch >= 'A' && ch <= 'F') |
| 209 | return ch - 'A' + 10; |
| 210 | else if (ch >= 'a' && ch <= 'f') |
| 211 | return ch - 'a' + 10; |
| 212 | return -1; |
| 213 | |
| 214 | } |
| 215 | |
| 216 | |
| 217 | |
| 218 | static int |
| 219 | get_hex (start) |
| 220 | int *start; |
| 221 | { |
| 222 | int value = get_hex_digit (*start); |
| 223 | int try; |
| 224 | |
| 225 | *start = readchar (timeout); |
| 226 | while ((try = get_hex_digit (*start)) >= 0) |
| 227 | { |
| 228 | value <<= 4; |
| 229 | value += try; |
| 230 | *start = readchar (timeout); |
| 231 | } |
| 232 | return value; |
| 233 | } |
| 234 | |
| 235 | /* Get N 32-bit words from remote, each preceded by a space, |
| 236 | and put them in registers starting at REGNO. */ |
| 237 | |
| 238 | static void |
| 239 | get_hex_regs (n, regno) |
| 240 | int n; |
| 241 | int regno; |
| 242 | { |
| 243 | long val; |
| 244 | int i; |
| 245 | |
| 246 | for (i = 0; i < n; i++) |
| 247 | { |
| 248 | int j; |
| 249 | |
| 250 | val = 0; |
| 251 | for (j = 0; j < 8; j++) |
| 252 | val = (val << 4) + get_hex_digit (j == 0); |
| 253 | supply_register (regno++, (char *) &val); |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | /* This is called not only when we first attach, but also when the |
| 258 | user types "run" after having attached. */ |
| 259 | static void |
| 260 | e7000_create_inferior (execfile, args, env) |
| 261 | char *execfile; |
| 262 | char *args; |
| 263 | char **env; |
| 264 | { |
| 265 | int entry_pt; |
| 266 | |
| 267 | if (args && *args) |
| 268 | error ("Can't pass arguments to remote E7000DEBUG process"); |
| 269 | |
| 270 | if (execfile == 0 || exec_bfd == 0) |
| 271 | error ("No exec file specified"); |
| 272 | |
| 273 | entry_pt = (int) bfd_get_start_address (exec_bfd); |
| 274 | |
| 275 | #ifdef CREATE_INFERIOR_HOOK |
| 276 | CREATE_INFERIOR_HOOK (0); /* No process-ID */ |
| 277 | #endif |
| 278 | |
| 279 | /* The "process" (board) is already stopped awaiting our commands, and |
| 280 | the program is already downloaded. We just set its PC and go. */ |
| 281 | |
| 282 | clear_proceed_status (); |
| 283 | |
| 284 | /* Tell wait_for_inferior that we've started a new process. */ |
| 285 | init_wait_for_inferior (); |
| 286 | |
| 287 | /* Set up the "saved terminal modes" of the inferior |
| 288 | based on what modes we are starting it with. */ |
| 289 | target_terminal_init (); |
| 290 | |
| 291 | /* Install inferior's terminal modes. */ |
| 292 | target_terminal_inferior (); |
| 293 | |
| 294 | /* insert_step_breakpoint (); FIXME, do we need this? */ |
| 295 | proceed ((CORE_ADDR) entry_pt, -1, 0); /* Let 'er rip... */ |
| 296 | } |
| 297 | |
| 298 | /* Open a connection to a remote debugger. |
| 299 | NAME is the filename used for communication. */ |
| 300 | |
| 301 | static int baudrate = 9600; |
| 302 | static char dev_name[100]; |
| 303 | |
| 304 | static char *machine = ""; |
| 305 | static char *user = ""; |
| 306 | static char *passwd = ""; |
| 307 | static char *dir = ""; |
| 308 | |
| 309 | /* Grab the next token and buy some space for it */ |
| 310 | static char * |
| 311 | next (ptr) |
| 312 | char **ptr; |
| 313 | { |
| 314 | char *p = *ptr; |
| 315 | char *s; |
| 316 | char *r; |
| 317 | int l = 0; |
| 318 | while (*p && *p == ' ') |
| 319 | { |
| 320 | p++; |
| 321 | } |
| 322 | s = p; |
| 323 | while (*p && (*p != ' ' && *p != '\t')) |
| 324 | { |
| 325 | l++; |
| 326 | p++; |
| 327 | } |
| 328 | r = xmalloc (l + 1); |
| 329 | memcpy (r, s, l); |
| 330 | r[l] = 0; |
| 331 | *ptr = p; |
| 332 | return r; |
| 333 | } |
| 334 | |
| 335 | static |
| 336 | e7000_login (args, from_tty) |
| 337 | char *args; |
| 338 | int from_tty; |
| 339 | { |
| 340 | if (args) |
| 341 | { |
| 342 | machine = next (&args); |
| 343 | user = next (&args); |
| 344 | passwd = next (&args); |
| 345 | dir = next (&args); |
| 346 | if (from_tty) |
| 347 | { |
| 348 | printf ("Set info to %s %s %s %s\n", machine, user, passwd, dir); |
| 349 | } |
| 350 | } |
| 351 | else |
| 352 | { |
| 353 | error ("Syntax is ftplogin <machine> <user> <passwd> <directory>"); |
| 354 | } |
| 355 | } |
| 356 | |
| 357 | /* Start an ftp transfer from the E7000 to a host */ |
| 358 | |
| 359 | static |
| 360 | e7000_ftp (args, from_tty) |
| 361 | char *args; |
| 362 | int from_tty; |
| 363 | { |
| 364 | int oldtimeout = timeout; |
| 365 | timeout = 10; |
| 366 | echo_index++; |
| 367 | printf_e7000debug ("ftp %s\r", machine); |
| 368 | expect (" Username : "); |
| 369 | printf_e7000debug ("%s\r", user); |
| 370 | expect (" Password : "); |
| 371 | write_e7000 (passwd); |
| 372 | write_e7000 ("\r"); |
| 373 | expect ("success\r"); |
| 374 | expect ("FTP>"); |
| 375 | printf_e7000debug ("cd %s\r", dir); |
| 376 | expect ("FTP>"); |
| 377 | printf_e7000debug ("ll 0;s:%s\r", args); |
| 378 | expect ("FTP>"); |
| 379 | printf_e7000debug ("bye\r"); |
| 380 | expect (":"); |
| 381 | echo_index--; |
| 382 | timeout = oldtimeout; |
| 383 | } |
| 384 | |
| 385 | static void |
| 386 | e7000_open (args, from_tty) |
| 387 | char *args; |
| 388 | int from_tty; |
| 389 | { |
| 390 | int n; |
| 391 | char junk[100]; |
| 392 | int sync; |
| 393 | target_preopen (from_tty); |
| 394 | |
| 395 | if (args) |
| 396 | n = sscanf (args, " %s %d %s", dev_name, &baudrate, junk); |
| 397 | else |
| 398 | n = 0; |
| 399 | if (n != 1 && n != 2) |
| 400 | error ("Bad arguments. Usage:\ttarget e7000 <device> <speed>\n\ |
| 401 | or \t\ttarget e7000 <host>[:<port>]\n"); |
| 402 | |
| 403 | if (n == 1 && strchr (dev_name, ':') == 0) |
| 404 | { |
| 405 | /* Default to normal telnet port */ |
| 406 | strcat (dev_name, ":23"); |
| 407 | } |
| 408 | |
| 409 | push_target (&e7000_ops); |
| 410 | e7000_desc = SERIAL_OPEN (dev_name); |
| 411 | |
| 412 | |
| 413 | if (!e7000_desc) |
| 414 | perror_with_name (dev_name); |
| 415 | |
| 416 | using_tcp = strcmp (e7000_desc->ops->name, "tcp") == 0; |
| 417 | |
| 418 | SERIAL_SETBAUDRATE (e7000_desc, baudrate); |
| 419 | SERIAL_RAW (e7000_desc); |
| 420 | |
| 421 | /* Hello? Are you there? */ |
| 422 | sync = 0; |
| 423 | while (!sync) |
| 424 | { |
| 425 | int c; |
| 426 | if (from_tty) |
| 427 | printf_unfiltered ("[waiting for e7000...]\n"); |
| 428 | write_e7000 ("\r\n"); |
| 429 | c = SERIAL_READCHAR (e7000_desc, 3); |
| 430 | while (c != SERIAL_TIMEOUT) |
| 431 | { |
| 432 | /* Dont echo cr's */ |
| 433 | if (from_tty && c != '\r') |
| 434 | { |
| 435 | putchar (c); |
| 436 | fflush (stdout); |
| 437 | } |
| 438 | if (c == ':') |
| 439 | { |
| 440 | sync = 1; |
| 441 | } |
| 442 | c = SERIAL_READCHAR (e7000_desc, 3); |
| 443 | if (quit_flag) |
| 444 | { |
| 445 | putchar_e7000 (CTRLC); |
| 446 | quit_flag = 0; |
| 447 | } |
| 448 | } |
| 449 | } |
| 450 | printf_e7000debug ("\r\n"); |
| 451 | expect_prompt (); |
| 452 | |
| 453 | if (from_tty) |
| 454 | printf_filtered ("Remote %s connected to %s\n", target_shortname, |
| 455 | dev_name); |
| 456 | |
| 457 | } |
| 458 | |
| 459 | /* Close out all files and local state before this target loses control. */ |
| 460 | |
| 461 | static void |
| 462 | e7000_close (quitting) |
| 463 | int quitting; |
| 464 | { |
| 465 | if (e7000_desc) |
| 466 | { |
| 467 | SERIAL_CLOSE (e7000_desc); |
| 468 | e7000_desc = 0; |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | /* Terminate the open connection to the remote debugger. |
| 473 | Use this when you want to detach and do something else |
| 474 | with your gdb. */ |
| 475 | static void |
| 476 | e7000_detach (from_tty) |
| 477 | int from_tty; |
| 478 | { |
| 479 | pop_target (); /* calls e7000_close to do the real work */ |
| 480 | if (from_tty) |
| 481 | printf ("Ending remote %s debugging\n", target_shortname); |
| 482 | } |
| 483 | |
| 484 | /* Tell the remote machine to resume. */ |
| 485 | |
| 486 | static void |
| 487 | e7000_resume (pid, step, sig) |
| 488 | int pid, step, sig; |
| 489 | { |
| 490 | if (step) |
| 491 | { |
| 492 | printf_e7000debug ("S\r"); |
| 493 | } |
| 494 | else |
| 495 | { |
| 496 | printf_e7000debug ("G\r"); |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | /* Read the remote registers into the block REGS. |
| 501 | |
| 502 | A reg dump looks like: |
| 503 | |
| 504 | */ |
| 505 | |
| 506 | #ifdef GDB_TARGET_IS_H8300 |
| 507 | char *want = "\n\ |
| 508 | PC=%p CCR=%c\n\ |
| 509 | ER0 - ER3 %0 %1 %2 %3\n\ |
| 510 | ER4 - ER7 %4 %5 %6 %7\n\ |
| 511 | :"; |
| 512 | |
| 513 | #endif |
| 514 | #ifdef GDB_TARGET_IS_SH |
| 515 | char *want = "\n\PC=%16 SR=%22\n\ |
| 516 | PR=%17 GBR=%18 VBR=%19\n\ |
| 517 | MACH=%20 MACL=%21\n\ |
| 518 | R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\ |
| 519 | R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\ |
| 520 | :"; |
| 521 | |
| 522 | char *want_nopc = "%16 SR=%22\n\ |
| 523 | PR=%17 GBR=%18 VBR=%19\n\ |
| 524 | MACH=%20 MACL=%21\n\ |
| 525 | R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\ |
| 526 | R8-15 %8 %9 %10 %11 %12 %13 %14 %15"; |
| 527 | |
| 528 | |
| 529 | #endif |
| 530 | |
| 531 | static |
| 532 | int |
| 533 | gch () |
| 534 | { |
| 535 | int c = readchar (timeout); |
| 536 | if (echo) |
| 537 | { |
| 538 | if (c >= ' ') |
| 539 | printf ("%c", c); |
| 540 | else if (c == '\n') |
| 541 | printf ("\n", c); |
| 542 | } |
| 543 | return c; |
| 544 | } |
| 545 | |
| 546 | |
| 547 | static |
| 548 | unsigned int |
| 549 | gbyte () |
| 550 | { |
| 551 | int high = get_hex_digit (gch ()); |
| 552 | int low = get_hex_digit (gch ()); |
| 553 | return (high << 4) + low; |
| 554 | } |
| 555 | |
| 556 | void |
| 557 | fetch_regs_from_dump (nextchar, want) |
| 558 | int (*nextchar)(); |
| 559 | char *want; |
| 560 | { |
| 561 | int regno; |
| 562 | char buf[MAX_REGISTER_RAW_SIZE]; |
| 563 | |
| 564 | int thischar = nextchar(); |
| 565 | |
| 566 | while (*want) |
| 567 | { |
| 568 | switch (*want) |
| 569 | { |
| 570 | case '\n': |
| 571 | while (thischar != '\n') |
| 572 | thischar = nextchar(); |
| 573 | thischar = nextchar(); |
| 574 | while (thischar == '\r') |
| 575 | thischar = nextchar(); |
| 576 | want++; |
| 577 | break; |
| 578 | |
| 579 | case ' ': |
| 580 | while (thischar == ' ' || thischar == '\t') |
| 581 | thischar = nextchar(); |
| 582 | want++; |
| 583 | break; |
| 584 | |
| 585 | default: |
| 586 | if (*want == thischar) |
| 587 | { |
| 588 | want++; |
| 589 | if (*want) |
| 590 | thischar = nextchar(); |
| 591 | |
| 592 | } |
| 593 | else if (thischar == ' ') |
| 594 | { |
| 595 | thischar = nextchar(); |
| 596 | } |
| 597 | else { |
| 598 | error("out of sync in fetch registers"); |
| 599 | } |
| 600 | |
| 601 | break; |
| 602 | case '%': |
| 603 | /* Got a register command */ |
| 604 | want++; |
| 605 | switch (*want) |
| 606 | { |
| 607 | #ifdef PC_REGNUM |
| 608 | case 'p': |
| 609 | regno = PC_REGNUM; |
| 610 | want++; |
| 611 | break; |
| 612 | #endif |
| 613 | #ifdef CCR_REGNUM |
| 614 | case 'c': |
| 615 | regno = CCR_REGNUM; |
| 616 | want++; |
| 617 | break; |
| 618 | #endif |
| 619 | #ifdef SP_REGNUM |
| 620 | case 's': |
| 621 | regno = SP_REGNUM; |
| 622 | want++; |
| 623 | break; |
| 624 | #endif |
| 625 | #ifdef FP_REGNUM |
| 626 | case 'f': |
| 627 | regno = FP_REGNUM; |
| 628 | want++; |
| 629 | break; |
| 630 | #endif |
| 631 | |
| 632 | |
| 633 | default: |
| 634 | if (isdigit(want[0])) |
| 635 | { |
| 636 | if (isdigit(want[1])) |
| 637 | { |
| 638 | regno = (want[0] - '0') * 10 + want[1] - '0'; |
| 639 | want+=2; |
| 640 | } |
| 641 | else |
| 642 | { |
| 643 | regno = want[0] - '0'; |
| 644 | want++; |
| 645 | } |
| 646 | } |
| 647 | |
| 648 | else |
| 649 | abort(); |
| 650 | } |
| 651 | store_signed_integer (buf, |
| 652 | REGISTER_RAW_SIZE(regno), |
| 653 | (LONGEST)get_hex(&thischar, nextchar)); |
| 654 | supply_register (regno, buf); |
| 655 | break; |
| 656 | } |
| 657 | } |
| 658 | } |
| 659 | |
| 660 | static void |
| 661 | e7000_fetch_registers () |
| 662 | { |
| 663 | int regno; |
| 664 | |
| 665 | printf_e7000debug ("R\r"); |
| 666 | fetch_regs_from_dump (gch, want); |
| 667 | |
| 668 | /* And supply the extra ones the simulator uses */ |
| 669 | for (regno = NUM_REALREGS; regno < NUM_REGS; regno++) |
| 670 | { |
| 671 | int buf = 0; |
| 672 | supply_register (regno, (char *) (&buf)); |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | /* Fetch register REGNO, or all registers if REGNO is -1. |
| 677 | Returns errno value. */ |
| 678 | |
| 679 | static |
| 680 | void |
| 681 | e7000_fetch_register (regno) |
| 682 | int regno; |
| 683 | { |
| 684 | e7000_fetch_registers (); |
| 685 | } |
| 686 | |
| 687 | /* Store the remote registers from the contents of the block REGS. */ |
| 688 | |
| 689 | static void |
| 690 | e7000_store_registers () |
| 691 | { |
| 692 | int regno; |
| 693 | |
| 694 | for (regno = 0; regno < NUM_REALREGS; regno++) |
| 695 | e7000_store_register (regno); |
| 696 | |
| 697 | registers_changed (); |
| 698 | } |
| 699 | |
| 700 | /* Store register REGNO, or all if REGNO == 0. |
| 701 | Return errno value. */ |
| 702 | static void |
| 703 | e7000_store_register (regno) |
| 704 | int regno; |
| 705 | { |
| 706 | if (regno == -1) |
| 707 | { |
| 708 | e7000_store_registers (); |
| 709 | return; |
| 710 | } |
| 711 | #ifdef GDB_TARGET_IS_H8300 |
| 712 | if (regno <= 7) |
| 713 | { |
| 714 | printf_e7000debug (".ER%d %x\r", regno, |
| 715 | read_register (regno)); |
| 716 | |
| 717 | } |
| 718 | else if (regno == PC_REGNUM) |
| 719 | { |
| 720 | printf_e7000debug (".PC %x\r", |
| 721 | read_register (regno)); |
| 722 | } |
| 723 | else if (regno == CCR_REGNUM) |
| 724 | { |
| 725 | printf_e7000debug (".CCR %x\r", |
| 726 | read_register (regno)); |
| 727 | } |
| 728 | #endif |
| 729 | |
| 730 | #ifdef GDB_TARGET_IS_SH |
| 731 | switch (regno) |
| 732 | { |
| 733 | default: |
| 734 | printf_e7000debug (".R%d %x\r", regno, |
| 735 | read_register (regno)); |
| 736 | |
| 737 | break; |
| 738 | case PC_REGNUM: |
| 739 | printf_e7000debug (".PC %x\r", |
| 740 | read_register (regno)); |
| 741 | break; |
| 742 | case SR_REGNUM: |
| 743 | printf_e7000debug (".SR %x\r", |
| 744 | read_register (regno)); |
| 745 | break; |
| 746 | |
| 747 | case PR_REGNUM: |
| 748 | printf_e7000debug (".PR %x\r", |
| 749 | read_register (regno)); |
| 750 | break; |
| 751 | |
| 752 | case GBR_REGNUM: |
| 753 | printf_e7000debug (".GBR %x\r", |
| 754 | read_register (regno)); |
| 755 | break; |
| 756 | |
| 757 | case VBR_REGNUM: |
| 758 | printf_e7000debug (".VBR %x\r", |
| 759 | read_register (regno)); |
| 760 | break; |
| 761 | |
| 762 | case MACH_REGNUM: |
| 763 | printf_e7000debug (".MACH %x\r", |
| 764 | read_register (regno)); |
| 765 | break; |
| 766 | |
| 767 | case MACL_REGNUM: |
| 768 | printf_e7000debug (".MACL %x\r", |
| 769 | read_register (regno)); |
| 770 | break; |
| 771 | } |
| 772 | |
| 773 | #endif |
| 774 | expect_prompt (); |
| 775 | } |
| 776 | |
| 777 | /* Get ready to modify the registers array. On machines which store |
| 778 | individual registers, this doesn't need to do anything. On machines |
| 779 | which store all the registers in one fell swoop, this makes sure |
| 780 | that registers contains all the registers from the program being |
| 781 | debugged. */ |
| 782 | |
| 783 | static void |
| 784 | e7000_prepare_to_store () |
| 785 | { |
| 786 | /* Do nothing, since we can store individual regs */ |
| 787 | } |
| 788 | |
| 789 | static void |
| 790 | e7000_files_info () |
| 791 | { |
| 792 | printf ("\tAttached to %s at %d baud.\n", |
| 793 | dev_name, baudrate); |
| 794 | } |
| 795 | |
| 796 | static |
| 797 | int |
| 798 | stickbyte (where, what) |
| 799 | char *where; |
| 800 | unsigned int what; |
| 801 | { |
| 802 | static CONST char digs[] = "0123456789ABCDEF"; |
| 803 | where[0] = digs[(what >> 4) & 0xf]; |
| 804 | where[1] = digs[(what & 0xf) & 0xf]; |
| 805 | return what; |
| 806 | } |
| 807 | |
| 808 | /* Write a small ammount of memory */ |
| 809 | static int |
| 810 | write_small (memaddr, myaddr, len) |
| 811 | CORE_ADDR memaddr; |
| 812 | unsigned char *myaddr; |
| 813 | int len; |
| 814 | { |
| 815 | int i; |
| 816 | for (i = 0; i < len; i++) |
| 817 | { |
| 818 | if (((memaddr + i) & 3) == 0 |
| 819 | && (i + 3 < len)) |
| 820 | { |
| 821 | /* Can be done with a long word */ |
| 822 | printf_e7000debug ("m %x %x%02x%02x%02x;l\r", |
| 823 | memaddr + i, |
| 824 | myaddr[i], |
| 825 | myaddr[i + 1], |
| 826 | myaddr[i + 2], |
| 827 | myaddr[i + 3]); |
| 828 | i += 3; |
| 829 | } |
| 830 | else |
| 831 | { |
| 832 | printf_e7000debug ("m %x %x\r", memaddr + i, myaddr[i]); |
| 833 | } |
| 834 | } |
| 835 | expect_prompt (); |
| 836 | return len; |
| 837 | } |
| 838 | /* Write a large ammount of memory, this only works with the serial mode enabled. |
| 839 | Command is sent as |
| 840 | il ;s:s\r -> |
| 841 | <- il ;s:s\r |
| 842 | <- ENQ |
| 843 | ACK -> |
| 844 | <- LO s\r |
| 845 | Srecords... |
| 846 | ^Z -> |
| 847 | <- ENQ |
| 848 | ACK -> |
| 849 | <- : |
| 850 | */ |
| 851 | |
| 852 | static int |
| 853 | write_large (memaddr, myaddr, len) |
| 854 | CORE_ADDR memaddr; |
| 855 | unsigned char *myaddr; |
| 856 | int len; |
| 857 | { |
| 858 | int i; |
| 859 | #define maxstride 128 |
| 860 | int stride; |
| 861 | |
| 862 | printf_e7000debug ("il ;s:s\r"); |
| 863 | expect (ENQSTRING); |
| 864 | putchar_e7000 (ACK); |
| 865 | expect ("LO s\r"); |
| 866 | |
| 867 | for (i = 0; i < len; i += stride) |
| 868 | { |
| 869 | char compose[maxstride * 2 + 50]; |
| 870 | int address = i + memaddr; |
| 871 | int j; |
| 872 | int check_sum; |
| 873 | int where = 0; |
| 874 | int alen; |
| 875 | stride = len - i; |
| 876 | if (stride > maxstride) |
| 877 | stride = maxstride; |
| 878 | |
| 879 | compose[where++] = 'S'; |
| 880 | check_sum = 0; |
| 881 | if (address >= 0xffffff) |
| 882 | { |
| 883 | alen = 4; |
| 884 | } |
| 885 | else if (address >= 0xffff) |
| 886 | { |
| 887 | alen = 3; |
| 888 | } |
| 889 | else |
| 890 | alen = 2; |
| 891 | compose[where++] = alen - 1 + '0'; /* insert type */ |
| 892 | check_sum += stickbyte (compose + where, alen + stride + 1); /* Insert length */ |
| 893 | where += 2; |
| 894 | while (alen > 0) |
| 895 | { |
| 896 | alen--; |
| 897 | check_sum += stickbyte (compose + where, address >> (8 * (alen))); |
| 898 | where += 2; |
| 899 | } |
| 900 | |
| 901 | for (j = 0; j < stride; j++) |
| 902 | { |
| 903 | check_sum += stickbyte (compose + where, myaddr[i + j]); |
| 904 | where += 2; |
| 905 | } |
| 906 | |
| 907 | stickbyte (compose + where, ~check_sum); |
| 908 | |
| 909 | where += 2; |
| 910 | compose[where++] = '\r'; |
| 911 | SERIAL_WRITE (e7000_desc, compose, where); |
| 912 | j = SERIAL_READCHAR (e7000_desc, 0); |
| 913 | if (j == SERIAL_TIMEOUT) |
| 914 | { |
| 915 | /* This is ok - nothing there */ |
| 916 | } |
| 917 | else if (j == ENQ) |
| 918 | { |
| 919 | /* Hmm, it's trying to tell us something */ |
| 920 | expect (":"); |
| 921 | error ("Error writing memory"); |
| 922 | } |
| 923 | else |
| 924 | { |
| 925 | printf ("Whats this %d\n", j); |
| 926 | } |
| 927 | |
| 928 | } |
| 929 | /* Send the trailer record */ |
| 930 | write_e7000 ("S70500000000FA\r"); |
| 931 | putchar_e7000 (CTRLZ); |
| 932 | expect (ENQSTRING); |
| 933 | putchar_e7000 (ACK); |
| 934 | expect (":"); |
| 935 | return len; |
| 936 | } |
| 937 | |
| 938 | /* Copy LEN bytes of data from debugger memory at MYADDR |
| 939 | to inferior's memory at MEMADDR. Returns length moved. |
| 940 | |
| 941 | Can't use the Srecord load over ethernet, so dont use |
| 942 | fast method then. |
| 943 | */ |
| 944 | static int |
| 945 | e7000_write_inferior_memory (memaddr, myaddr, len) |
| 946 | CORE_ADDR memaddr; |
| 947 | unsigned char *myaddr; |
| 948 | int len; |
| 949 | { |
| 950 | if (len < 16 || using_tcp) |
| 951 | { |
| 952 | return write_small (memaddr, myaddr, len); |
| 953 | } |
| 954 | else |
| 955 | { |
| 956 | return write_large (memaddr, myaddr, len); |
| 957 | } |
| 958 | } |
| 959 | |
| 960 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result |
| 961 | at debugger address MYADDR. Returns length moved. |
| 962 | |
| 963 | Done by requesting an srecord dump from the E7000. |
| 964 | */ |
| 965 | |
| 966 | |
| 967 | |
| 968 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result |
| 969 | at debugger address MYADDR. Returns length moved. |
| 970 | |
| 971 | |
| 972 | Small transactions we send |
| 973 | m <addr>;l |
| 974 | and receive |
| 975 | 00000000 12345678 ? |
| 976 | |
| 977 | */ |
| 978 | |
| 979 | static int |
| 980 | e7000_read_inferior_memory (memaddr, myaddr, len) |
| 981 | CORE_ADDR memaddr; |
| 982 | unsigned char *myaddr; |
| 983 | int len; |
| 984 | { |
| 985 | int count; |
| 986 | int c; |
| 987 | int i; |
| 988 | /* Starting address of this pass. */ |
| 989 | |
| 990 | if (((memaddr - 1) + len) < memaddr) |
| 991 | { |
| 992 | errno = EIO; |
| 993 | return 0; |
| 994 | } |
| 995 | |
| 996 | printf_e7000debug ("m %x;l\r", memaddr); |
| 997 | |
| 998 | for (count = 0; count < len; count += 4) |
| 999 | { |
| 1000 | /* Suck away the address */ |
| 1001 | c = gch(); |
| 1002 | while (c != ' ') |
| 1003 | c = gch(); |
| 1004 | c = gch(); |
| 1005 | if (c == '*') |
| 1006 | { /* Some kind of error */ |
| 1007 | expect_prompt(); |
| 1008 | return -1; |
| 1009 | } |
| 1010 | while (c != ' ') |
| 1011 | c = gch(); |
| 1012 | |
| 1013 | /* Now read in the data */ |
| 1014 | for (i = 0; i < 4; i++) |
| 1015 | { |
| 1016 | int b = gbyte(); |
| 1017 | if (count + i < len) { |
| 1018 | myaddr[count + i] = b; |
| 1019 | } |
| 1020 | } |
| 1021 | |
| 1022 | /* Skip the trailing ? and send a . to end and a cr for more */ |
| 1023 | gch(); |
| 1024 | gch(); |
| 1025 | if (count + 4 >= len) |
| 1026 | printf_e7000debug(".\r"); |
| 1027 | else |
| 1028 | printf_e7000debug("\r"); |
| 1029 | } |
| 1030 | expect_prompt(); |
| 1031 | } |
| 1032 | |
| 1033 | |
| 1034 | #if 0 |
| 1035 | /* |
| 1036 | For large transfers we used to send |
| 1037 | |
| 1038 | |
| 1039 | d <addr> <endaddr>\r |
| 1040 | |
| 1041 | and receive |
| 1042 | <ADDR> < D A T A > < ASCII CODE > |
| 1043 | 000000 5F FD FD FF DF 7F DF FF 01 00 01 00 02 00 08 04 "_..............." |
| 1044 | 000010 FF D7 FF 7F D7 F1 7F FF 00 05 00 00 08 00 40 00 "..............@." |
| 1045 | 000020 7F FD FF F7 7F FF FF F7 00 00 00 00 00 00 00 00 "................" |
| 1046 | |
| 1047 | A cost in chars for each transaction of 80 + 5*n-bytes. |
| 1048 | |
| 1049 | |
| 1050 | Large transactions could be done with the srecord load code, but |
| 1051 | there is a pause for a second before dumping starts, which slows the |
| 1052 | average rate down! |
| 1053 | */ |
| 1054 | |
| 1055 | static int |
| 1056 | e7000_read_inferior_memory (memaddr, myaddr, len) |
| 1057 | CORE_ADDR memaddr; |
| 1058 | unsigned char *myaddr; |
| 1059 | int len; |
| 1060 | { |
| 1061 | int count; |
| 1062 | int c; |
| 1063 | |
| 1064 | /* Starting address of this pass. */ |
| 1065 | |
| 1066 | if (((memaddr - 1) + len) < memaddr) |
| 1067 | { |
| 1068 | errno = EIO; |
| 1069 | return 0; |
| 1070 | } |
| 1071 | |
| 1072 | printf_e7000debug ("d %x %x\r", memaddr, memaddr + len - 1); |
| 1073 | |
| 1074 | count = 0; |
| 1075 | c = gch (); |
| 1076 | |
| 1077 | /* First skip the command */ |
| 1078 | while (c == '\n') |
| 1079 | c = gch (); |
| 1080 | |
| 1081 | while (c == ' ') |
| 1082 | c = gch (); |
| 1083 | if (c == '*') |
| 1084 | { |
| 1085 | expect ("\r"); |
| 1086 | return -1; |
| 1087 | } |
| 1088 | |
| 1089 | /* Skip the title line */ |
| 1090 | while (c != '\n') |
| 1091 | c = gch (); |
| 1092 | c = gch (); |
| 1093 | while (count < len) |
| 1094 | { |
| 1095 | /* Skip the address */ |
| 1096 | while (c <= ' ') |
| 1097 | c = gch (); |
| 1098 | |
| 1099 | get_hex (&c); |
| 1100 | |
| 1101 | /* read in the bytes on the line */ |
| 1102 | while (c != '"' && count < len) |
| 1103 | { |
| 1104 | if (c == ' ') |
| 1105 | c = gch (); |
| 1106 | else |
| 1107 | { |
| 1108 | myaddr[count++] = get_hex (&c); |
| 1109 | } |
| 1110 | } |
| 1111 | |
| 1112 | while (c != '\n') |
| 1113 | c = gch (); |
| 1114 | } |
| 1115 | |
| 1116 | while (c != ':') |
| 1117 | c = gch (); |
| 1118 | |
| 1119 | return len; |
| 1120 | } |
| 1121 | |
| 1122 | static int |
| 1123 | fast_but_for_the_pause_e7000_read_inferior_memory (memaddr, myaddr, len) |
| 1124 | CORE_ADDR memaddr; |
| 1125 | char *myaddr; |
| 1126 | int len; |
| 1127 | { |
| 1128 | int loop; |
| 1129 | int c; |
| 1130 | |
| 1131 | if (((memaddr - 1) + len) < memaddr) |
| 1132 | { |
| 1133 | errno = EIO; |
| 1134 | return 0; |
| 1135 | } |
| 1136 | |
| 1137 | printf_e7000debug ("is %x@%x:s\r", memaddr, len); |
| 1138 | gch (); |
| 1139 | c = gch (); |
| 1140 | if (c != ENQ) |
| 1141 | { |
| 1142 | /* Got an error */ |
| 1143 | error ("Memory read error"); |
| 1144 | } |
| 1145 | putchar_e7000 (ACK); |
| 1146 | expect ("SV s"); |
| 1147 | loop = 1; |
| 1148 | while (loop) |
| 1149 | { |
| 1150 | int type; |
| 1151 | int length; |
| 1152 | int addr; |
| 1153 | int i; |
| 1154 | c = gch (); |
| 1155 | switch (c) |
| 1156 | { |
| 1157 | case ENQ: /* ENQ, at the end */ |
| 1158 | loop = 0; |
| 1159 | break; |
| 1160 | case 'S': |
| 1161 | /* Start of an Srecord */ |
| 1162 | type = gch (); |
| 1163 | length = gbyte (); |
| 1164 | switch (type) |
| 1165 | { |
| 1166 | case '7': /* Termination record, ignore */ |
| 1167 | case '0': |
| 1168 | case '8': |
| 1169 | case '9': |
| 1170 | /* Header record - ignore it */ |
| 1171 | while (length--) |
| 1172 | { |
| 1173 | gbyte (); |
| 1174 | } |
| 1175 | break; |
| 1176 | case '1': |
| 1177 | case '2': |
| 1178 | case '3': |
| 1179 | { |
| 1180 | int alen; |
| 1181 | alen = type - '0' + 1; |
| 1182 | addr = 0; |
| 1183 | while (alen--) |
| 1184 | { |
| 1185 | addr = (addr << 8) + gbyte (); |
| 1186 | length--; |
| 1187 | } |
| 1188 | |
| 1189 | for (i = 0; i < length - 1; i++) |
| 1190 | { |
| 1191 | myaddr[i + addr - memaddr] = gbyte (); |
| 1192 | } |
| 1193 | gbyte (); /* Ignore checksum */ |
| 1194 | } |
| 1195 | } |
| 1196 | } |
| 1197 | } |
| 1198 | putchar_e7000 (ACK); |
| 1199 | expect ("TOP ADDRESS ="); |
| 1200 | expect ("END ADDRESS ="); |
| 1201 | expect (":"); |
| 1202 | |
| 1203 | return len; |
| 1204 | } |
| 1205 | |
| 1206 | #endif |
| 1207 | |
| 1208 | static int |
| 1209 | e7000_xfer_inferior_memory (memaddr, myaddr, len, write, target) |
| 1210 | CORE_ADDR memaddr; |
| 1211 | unsigned char *myaddr; |
| 1212 | int len; |
| 1213 | int write; |
| 1214 | struct target_ops *target; /* ignored */ |
| 1215 | { |
| 1216 | if (write) |
| 1217 | { |
| 1218 | return e7000_write_inferior_memory( memaddr, myaddr, len); |
| 1219 | } |
| 1220 | else |
| 1221 | { |
| 1222 | return e7000_read_inferior_memory( memaddr, myaddr, len); |
| 1223 | } |
| 1224 | } |
| 1225 | |
| 1226 | static void |
| 1227 | e7000_kill (args, from_tty) |
| 1228 | char *args; |
| 1229 | int from_tty; |
| 1230 | { |
| 1231 | |
| 1232 | } |
| 1233 | |
| 1234 | /* Clean up when a program exits. |
| 1235 | |
| 1236 | The program actually lives on in the remote processor's RAM, and may be |
| 1237 | run again without a download. Don't leave it full of breakpoint |
| 1238 | instructions. */ |
| 1239 | |
| 1240 | static void |
| 1241 | e7000_mourn_inferior () |
| 1242 | { |
| 1243 | remove_breakpoints (); |
| 1244 | unpush_target (&e7000_ops); |
| 1245 | generic_mourn_inferior (); /* Do all the proper things now */ |
| 1246 | } |
| 1247 | |
| 1248 | #define MAX_E7000DEBUG_BREAKPOINTS 200 |
| 1249 | |
| 1250 | extern int memory_breakpoint_size; |
| 1251 | static CORE_ADDR breakaddr[MAX_E7000DEBUG_BREAKPOINTS] = |
| 1252 | {0}; |
| 1253 | |
| 1254 | static int |
| 1255 | e7000_insert_breakpoint (addr, shadow) |
| 1256 | CORE_ADDR addr; |
| 1257 | unsigned char *shadow; |
| 1258 | { |
| 1259 | int i; |
| 1260 | static char nop[2] = |
| 1261 | {0x20, 0x0b}; |
| 1262 | |
| 1263 | for (i = 0; i <= MAX_E7000DEBUG_BREAKPOINTS; i++) |
| 1264 | if (breakaddr[i] == 0) |
| 1265 | { |
| 1266 | breakaddr[i] = addr; |
| 1267 | /* Save old contents, and insert a nop in the space */ |
| 1268 | e7000_read_inferior_memory (addr, shadow, 2); |
| 1269 | e7000_write_inferior_memory (addr, nop, 2); |
| 1270 | printf_e7000debug ("B %x\r", addr); |
| 1271 | expect_prompt (); |
| 1272 | return 0; |
| 1273 | } |
| 1274 | |
| 1275 | error("Too many breakpoints ( > %d) for the E7000\n", MAX_E7000DEBUG_BREAKPOINTS); |
| 1276 | return 1; |
| 1277 | } |
| 1278 | |
| 1279 | static int |
| 1280 | e7000_remove_breakpoint (addr, shadow) |
| 1281 | CORE_ADDR addr; |
| 1282 | unsigned char *shadow; |
| 1283 | { |
| 1284 | int i; |
| 1285 | |
| 1286 | for (i = 0; i < MAX_E7000DEBUG_BREAKPOINTS; i++) |
| 1287 | if (breakaddr[i] == addr) |
| 1288 | { |
| 1289 | breakaddr[i] = 0; |
| 1290 | printf_e7000debug ("B - %x\r", addr); |
| 1291 | expect_prompt (); |
| 1292 | /* Replace the insn under the break */ |
| 1293 | e7000_write_inferior_memory (addr, shadow, 2); |
| 1294 | return 0; |
| 1295 | } |
| 1296 | |
| 1297 | fprintf (stderr, "Can't find breakpoint associated with 0x%x\n", addr); |
| 1298 | return 1; |
| 1299 | } |
| 1300 | |
| 1301 | |
| 1302 | /* Put a command string, in args, out to STDBUG. Output from STDBUG is placed |
| 1303 | on the users terminal until the prompt is seen. */ |
| 1304 | |
| 1305 | static void |
| 1306 | e7000_command (args, fromtty) |
| 1307 | char *args; |
| 1308 | int fromtty; |
| 1309 | { |
| 1310 | |
| 1311 | if (!e7000_desc) |
| 1312 | error ("e7000 target not open."); |
| 1313 | if (!args) |
| 1314 | { |
| 1315 | printf_e7000debug ("\r"); |
| 1316 | } |
| 1317 | else |
| 1318 | { |
| 1319 | printf_e7000debug ("%s\r", args); |
| 1320 | } |
| 1321 | echo_index++; |
| 1322 | expect_full_prompt (); |
| 1323 | echo_index--; |
| 1324 | printf_unfiltered ("\n"); |
| 1325 | } |
| 1326 | |
| 1327 | static void |
| 1328 | e7000_load (args, fromtty) |
| 1329 | char *args; |
| 1330 | int fromtty; |
| 1331 | { |
| 1332 | load_target_image (args, fromtty); |
| 1333 | } |
| 1334 | |
| 1335 | static void |
| 1336 | e7000_drain (args, fromtty) |
| 1337 | char *args; |
| 1338 | int fromtty; |
| 1339 | |
| 1340 | { |
| 1341 | int c; |
| 1342 | |
| 1343 | while ((c = SERIAL_READCHAR (e7000_desc, 2) != SERIAL_TIMEOUT)) |
| 1344 | { |
| 1345 | if (c > ' ' && c < 127) |
| 1346 | printf ("%c", c & 0xff); |
| 1347 | else |
| 1348 | printf ("<%x>", c & 0xff); |
| 1349 | } |
| 1350 | } |
| 1351 | |
| 1352 | e7000_noecho () |
| 1353 | { |
| 1354 | echo = !echo; |
| 1355 | } |
| 1356 | |
| 1357 | /* Wait until the remote machine stops, then return, |
| 1358 | storing status in STATUS just as `wait' would. */ |
| 1359 | |
| 1360 | static int |
| 1361 | e7000_wait (pid, status) |
| 1362 | int pid; |
| 1363 | WAITTYPE *status; |
| 1364 | { |
| 1365 | int c; |
| 1366 | int regno; |
| 1367 | int loop = 1; |
| 1368 | int time = 0; |
| 1369 | WSETSTOP ((*status), 0); |
| 1370 | /* Then echo chars until PC= string seen */ |
| 1371 | gch (); /* Drop cr */ |
| 1372 | gch (); /* and space */ |
| 1373 | while (loop) |
| 1374 | { |
| 1375 | c = SERIAL_READCHAR (e7000_desc, 1); |
| 1376 | if (c < 0) |
| 1377 | { |
| 1378 | time++; |
| 1379 | if (time == 5) |
| 1380 | { |
| 1381 | printf_unfiltered ("[waiting for e7000..]\n"); |
| 1382 | time = 0; |
| 1383 | } |
| 1384 | } |
| 1385 | if (quit_flag) |
| 1386 | { |
| 1387 | quit_flag = 0; |
| 1388 | putchar_e7000 (CTRLC); /* interrupt the running program */ |
| 1389 | } |
| 1390 | if (c == 'P') |
| 1391 | { |
| 1392 | c = SERIAL_READCHAR (e7000_desc, 1); |
| 1393 | if (c == 'C') |
| 1394 | { |
| 1395 | c = SERIAL_READCHAR (e7000_desc, 1); |
| 1396 | if (c == '=') |
| 1397 | { |
| 1398 | /* Got break */ |
| 1399 | loop = 0; |
| 1400 | } |
| 1401 | else |
| 1402 | { |
| 1403 | printf ("PC"); |
| 1404 | } |
| 1405 | } |
| 1406 | else |
| 1407 | { |
| 1408 | printf ("P"); |
| 1409 | } |
| 1410 | } |
| 1411 | else |
| 1412 | { |
| 1413 | if (c > 0) |
| 1414 | { |
| 1415 | putchar (c); |
| 1416 | fflush (stdout); |
| 1417 | } |
| 1418 | } |
| 1419 | } |
| 1420 | fetch_regs_from_dump (gch, want_nopc); |
| 1421 | |
| 1422 | /* And supply the extra ones the simulator uses */ |
| 1423 | for (regno = NUM_REALREGS; regno < NUM_REGS; regno++) |
| 1424 | { |
| 1425 | int buf = 0; |
| 1426 | supply_register (regno, (char *) &buf); |
| 1427 | } |
| 1428 | |
| 1429 | expect_full_prompt (); |
| 1430 | WSETSTOP ((*status), SIGTRAP); |
| 1431 | |
| 1432 | return 0; |
| 1433 | } |
| 1434 | |
| 1435 | /* Define the target subroutine names */ |
| 1436 | |
| 1437 | struct target_ops e7000_ops = |
| 1438 | { |
| 1439 | "e7000", |
| 1440 | "Remote Hitachi e7000 target", |
| 1441 | "Use a remote Hitachi e7000 ICE connected by a serial line,\n\ |
| 1442 | or a network connection.\n\ |
| 1443 | Arguments are the name of the device for the serial line,\n\ |
| 1444 | the speed to connect at in bits per second.\n\ |
| 1445 | eg\n\ |
| 1446 | target e7000 /dev/ttya 9600\n\ |
| 1447 | target e7000 foobar", |
| 1448 | e7000_open, |
| 1449 | e7000_close, |
| 1450 | 0, |
| 1451 | e7000_detach, |
| 1452 | e7000_resume, |
| 1453 | e7000_wait, |
| 1454 | e7000_fetch_register, |
| 1455 | e7000_store_register, |
| 1456 | e7000_prepare_to_store, |
| 1457 | e7000_xfer_inferior_memory, |
| 1458 | e7000_files_info, |
| 1459 | e7000_insert_breakpoint, |
| 1460 | e7000_remove_breakpoint, /* Breakpoints */ |
| 1461 | 0, |
| 1462 | 0, |
| 1463 | 0, |
| 1464 | 0, |
| 1465 | 0, /* Terminal handling */ |
| 1466 | e7000_kill, |
| 1467 | e7000_load, /* load */ |
| 1468 | 0, /* lookup_symbol */ |
| 1469 | e7000_create_inferior, |
| 1470 | e7000_mourn_inferior, |
| 1471 | 0, /* can_run */ |
| 1472 | 0, /* notice_signals */ |
| 1473 | process_stratum, |
| 1474 | 0, /* next */ |
| 1475 | 1, |
| 1476 | 1, |
| 1477 | 1, |
| 1478 | 1, |
| 1479 | 1, /* all mem, mem, stack, regs, exec */ |
| 1480 | 0, |
| 1481 | 0, /* Section pointers */ |
| 1482 | OPS_MAGIC, /* Always the last thing */ |
| 1483 | }; |
| 1484 | |
| 1485 | void |
| 1486 | _initialize_remote_e7000 () |
| 1487 | { |
| 1488 | add_target (&e7000_ops); |
| 1489 | add_com ("e7000 <command>", class_obscure, e7000_command, |
| 1490 | "Send a command to the e7000 monitor."); |
| 1491 | |
| 1492 | add_com ("ftplogin <machine> <name> <passwd> <dir>", class_obscure, e7000_login, |
| 1493 | "Login to machine and change to directory."); |
| 1494 | |
| 1495 | add_com ("ftpload <file>", class_obscure, e7000_ftp, |
| 1496 | "Fetch and load a file from previously described place."); |
| 1497 | |
| 1498 | add_com ("drain", class_obscure, e7000_drain, |
| 1499 | "Drain pending e7000 text buffers."); |
| 1500 | add_com ("echo", class_obscure, e7000_noecho, "Toggle monitor echo."); |
| 1501 | |
| 1502 | } |