| 1 | /* Remote debugging interface for Hitachi E7000 ICE, for GDB |
| 2 | Copyright 1993, 1994, 1996, 1997, 1998, 2000, 2001 Free Software Foundation, Inc. |
| 3 | Contributed by Cygnus Support. |
| 4 | |
| 5 | Written by Steve Chamberlain for Cygnus Support. |
| 6 | |
| 7 | This file is part of GDB. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 2 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software |
| 21 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 22 | Boston, MA 02111-1307, USA. */ |
| 23 | |
| 24 | /* The E7000 is an in-circuit emulator for the Hitachi H8/300-H and |
| 25 | Hitachi-SH processor. It has serial port and a lan port. |
| 26 | |
| 27 | The monitor command set makes it difficult to load large ammounts of |
| 28 | data over the lan without using ftp - so try not to issue load |
| 29 | commands when communicating over ethernet; use the ftpload command. |
| 30 | |
| 31 | The monitor pauses for a second when dumping srecords to the serial |
| 32 | line too, so we use a slower per byte mechanism but without the |
| 33 | startup overhead. Even so, it's pretty slow... */ |
| 34 | |
| 35 | #include "defs.h" |
| 36 | #include "gdbcore.h" |
| 37 | #include "gdbarch.h" |
| 38 | #include "inferior.h" |
| 39 | #include "target.h" |
| 40 | #include "value.h" |
| 41 | #include "command.h" |
| 42 | #include "gdb_string.h" |
| 43 | #include "gdbcmd.h" |
| 44 | #include <sys/types.h> |
| 45 | #include "serial.h" |
| 46 | #include "remote-utils.h" |
| 47 | #include "symfile.h" |
| 48 | #include "regcache.h" |
| 49 | #include <time.h> |
| 50 | #include <ctype.h> |
| 51 | |
| 52 | |
| 53 | #if 1 |
| 54 | #define HARD_BREAKPOINTS /* Now handled by set option. */ |
| 55 | #define BC_BREAKPOINTS use_hard_breakpoints |
| 56 | #endif |
| 57 | |
| 58 | #define CTRLC 0x03 |
| 59 | #define ENQ 0x05 |
| 60 | #define ACK 0x06 |
| 61 | #define CTRLZ 0x1a |
| 62 | |
| 63 | /* This file is used by 2 different targets, sh-elf and h8300. The |
| 64 | h8300 is not multiarched and doesn't use the registers defined in |
| 65 | tm-sh.h. To avoid using a macro GDB_TARGET_IS_SH, we do runtime check |
| 66 | of the target, which requires that these namse below are always |
| 67 | defined also in the h8300 case. */ |
| 68 | |
| 69 | #if !defined (PR_REGNUM) |
| 70 | #define PR_REGNUM -1 |
| 71 | #endif |
| 72 | #if !defined (GBR_REGNUM) |
| 73 | #define GBR_REGNUM -1 |
| 74 | #endif |
| 75 | #if !defined (VBR_REGNUM) |
| 76 | #define VBR_REGNUM -1 |
| 77 | #endif |
| 78 | #if !defined (MACH_REGNUM) |
| 79 | #define MACH_REGNUM -1 |
| 80 | #endif |
| 81 | #if !defined (MACL_REGNUM) |
| 82 | #define MACL_REGNUM -1 |
| 83 | #endif |
| 84 | #if !defined (SR_REGNUM) |
| 85 | #define SR_REGNUM -1 |
| 86 | #endif |
| 87 | |
| 88 | extern void notice_quit (void); |
| 89 | |
| 90 | extern void report_transfer_performance (unsigned long, time_t, time_t); |
| 91 | |
| 92 | extern char *sh_processor_type; |
| 93 | |
| 94 | /* Local function declarations. */ |
| 95 | |
| 96 | static void e7000_close (int); |
| 97 | |
| 98 | static void e7000_fetch_register (int); |
| 99 | |
| 100 | static void e7000_store_register (int); |
| 101 | |
| 102 | static void e7000_command (char *, int); |
| 103 | |
| 104 | static void e7000_login_command (char *, int); |
| 105 | |
| 106 | static void e7000_ftp_command (char *, int); |
| 107 | |
| 108 | static void e7000_drain_command (char *, int); |
| 109 | |
| 110 | static void expect (char *); |
| 111 | |
| 112 | static void expect_full_prompt (void); |
| 113 | |
| 114 | static void expect_prompt (void); |
| 115 | |
| 116 | static int e7000_parse_device (char *args, char *dev_name, int baudrate); |
| 117 | /* Variables. */ |
| 118 | |
| 119 | static serial_t e7000_desc; |
| 120 | |
| 121 | /* Allow user to chose between using hardware breakpoints or memory. */ |
| 122 | static int use_hard_breakpoints = 0; /* use sw breakpoints by default */ |
| 123 | |
| 124 | /* Nonzero if using the tcp serial driver. */ |
| 125 | |
| 126 | static int using_tcp; /* direct tcp connection to target */ |
| 127 | static int using_tcp_remote; /* indirect connection to target |
| 128 | via tcp to controller */ |
| 129 | |
| 130 | /* Nonzero if using the pc isa card. */ |
| 131 | |
| 132 | static int using_pc; |
| 133 | |
| 134 | extern struct target_ops e7000_ops; /* Forward declaration */ |
| 135 | |
| 136 | char *ENQSTRING = "\005"; |
| 137 | |
| 138 | /* Nonzero if some routine (as opposed to the user) wants echoing. |
| 139 | FIXME: Do this reentrantly with an extra parameter. */ |
| 140 | |
| 141 | static int echo; |
| 142 | |
| 143 | static int ctrl_c; |
| 144 | |
| 145 | static int timeout = 20; |
| 146 | |
| 147 | /* Send data to e7000debug. */ |
| 148 | |
| 149 | static void |
| 150 | puts_e7000debug (char *buf) |
| 151 | { |
| 152 | if (!e7000_desc) |
| 153 | error ("Use \"target e7000 ...\" first."); |
| 154 | |
| 155 | if (remote_debug) |
| 156 | printf_unfiltered ("Sending %s\n", buf); |
| 157 | |
| 158 | if (SERIAL_WRITE (e7000_desc, buf, strlen (buf))) |
| 159 | fprintf_unfiltered (gdb_stderr, "SERIAL_WRITE failed: %s\n", safe_strerror (errno)); |
| 160 | |
| 161 | /* And expect to see it echoed, unless using the pc interface */ |
| 162 | #if 0 |
| 163 | if (!using_pc) |
| 164 | #endif |
| 165 | expect (buf); |
| 166 | } |
| 167 | |
| 168 | static void |
| 169 | putchar_e7000 (int x) |
| 170 | { |
| 171 | char b[1]; |
| 172 | |
| 173 | b[0] = x; |
| 174 | SERIAL_WRITE (e7000_desc, b, 1); |
| 175 | } |
| 176 | |
| 177 | static void |
| 178 | write_e7000 (char *s) |
| 179 | { |
| 180 | SERIAL_WRITE (e7000_desc, s, strlen (s)); |
| 181 | } |
| 182 | |
| 183 | static int |
| 184 | normal (int x) |
| 185 | { |
| 186 | if (x == '\n') |
| 187 | return '\r'; |
| 188 | return x; |
| 189 | } |
| 190 | |
| 191 | /* Read a character from the remote system, doing all the fancy timeout |
| 192 | stuff. Handles serial errors and EOF. If TIMEOUT == 0, and no chars, |
| 193 | returns -1, else returns next char. Discards chars > 127. */ |
| 194 | |
| 195 | static int |
| 196 | readchar (int timeout) |
| 197 | { |
| 198 | int c; |
| 199 | |
| 200 | do |
| 201 | { |
| 202 | c = SERIAL_READCHAR (e7000_desc, timeout); |
| 203 | } |
| 204 | while (c > 127); |
| 205 | |
| 206 | if (c == SERIAL_TIMEOUT) |
| 207 | { |
| 208 | if (timeout == 0) |
| 209 | return -1; |
| 210 | echo = 0; |
| 211 | error ("Timeout reading from remote system."); |
| 212 | } |
| 213 | else if (c < 0) |
| 214 | error ("Serial communication error"); |
| 215 | |
| 216 | if (remote_debug) |
| 217 | { |
| 218 | putchar_unfiltered (c); |
| 219 | gdb_flush (gdb_stdout); |
| 220 | } |
| 221 | |
| 222 | return normal (c); |
| 223 | } |
| 224 | |
| 225 | #if 0 |
| 226 | char * |
| 227 | tl (int x) |
| 228 | { |
| 229 | static char b[8][10]; |
| 230 | static int p; |
| 231 | |
| 232 | p++; |
| 233 | p &= 7; |
| 234 | if (x >= ' ') |
| 235 | { |
| 236 | b[p][0] = x; |
| 237 | b[p][1] = 0; |
| 238 | } |
| 239 | else |
| 240 | { |
| 241 | sprintf (b[p], "<%d>", x); |
| 242 | } |
| 243 | |
| 244 | return b[p]; |
| 245 | } |
| 246 | #endif |
| 247 | |
| 248 | /* Scan input from the remote system, until STRING is found. If |
| 249 | DISCARD is non-zero, then discard non-matching input, else print it |
| 250 | out. Let the user break out immediately. */ |
| 251 | |
| 252 | static void |
| 253 | expect (char *string) |
| 254 | { |
| 255 | char *p = string; |
| 256 | int c; |
| 257 | int nl = 0; |
| 258 | |
| 259 | while (1) |
| 260 | { |
| 261 | c = readchar (timeout); |
| 262 | #if 0 |
| 263 | notice_quit (); |
| 264 | if (quit_flag == 1) |
| 265 | { |
| 266 | if (ctrl_c) |
| 267 | { |
| 268 | putchar_e7000 (CTRLC); |
| 269 | --ctrl_c; |
| 270 | } |
| 271 | else |
| 272 | { |
| 273 | quit (); |
| 274 | } |
| 275 | } |
| 276 | #endif |
| 277 | |
| 278 | if (echo) |
| 279 | { |
| 280 | if (c == '\r' || c == '\n') |
| 281 | { |
| 282 | if (!nl) |
| 283 | putchar_unfiltered ('\n'); |
| 284 | nl = 1; |
| 285 | } |
| 286 | else |
| 287 | { |
| 288 | nl = 0; |
| 289 | putchar_unfiltered (c); |
| 290 | } |
| 291 | gdb_flush (gdb_stdout); |
| 292 | } |
| 293 | if (normal (c) == normal (*p++)) |
| 294 | { |
| 295 | if (*p == '\0') |
| 296 | return; |
| 297 | } |
| 298 | else |
| 299 | { |
| 300 | p = string; |
| 301 | |
| 302 | if (normal (c) == normal (string[0])) |
| 303 | p++; |
| 304 | } |
| 305 | } |
| 306 | } |
| 307 | |
| 308 | /* Keep discarding input until we see the e7000 prompt. |
| 309 | |
| 310 | The convention for dealing with the prompt is that you |
| 311 | o give your command |
| 312 | o *then* wait for the prompt. |
| 313 | |
| 314 | Thus the last thing that a procedure does with the serial line will |
| 315 | be an expect_prompt(). Exception: e7000_resume does not wait for |
| 316 | the prompt, because the terminal is being handed over to the |
| 317 | inferior. However, the next thing which happens after that is a |
| 318 | e7000_wait which does wait for the prompt. Note that this includes |
| 319 | abnormal exit, e.g. error(). This is necessary to prevent getting |
| 320 | into states from which we can't recover. */ |
| 321 | |
| 322 | static void |
| 323 | expect_prompt (void) |
| 324 | { |
| 325 | expect (":"); |
| 326 | } |
| 327 | |
| 328 | static void |
| 329 | expect_full_prompt (void) |
| 330 | { |
| 331 | expect ("\r:"); |
| 332 | } |
| 333 | |
| 334 | static int |
| 335 | convert_hex_digit (int ch) |
| 336 | { |
| 337 | if (ch >= '0' && ch <= '9') |
| 338 | return ch - '0'; |
| 339 | else if (ch >= 'A' && ch <= 'F') |
| 340 | return ch - 'A' + 10; |
| 341 | else if (ch >= 'a' && ch <= 'f') |
| 342 | return ch - 'a' + 10; |
| 343 | return -1; |
| 344 | } |
| 345 | |
| 346 | static int |
| 347 | get_hex (int *start) |
| 348 | { |
| 349 | int value = convert_hex_digit (*start); |
| 350 | int try; |
| 351 | |
| 352 | *start = readchar (timeout); |
| 353 | while ((try = convert_hex_digit (*start)) >= 0) |
| 354 | { |
| 355 | value <<= 4; |
| 356 | value += try; |
| 357 | *start = readchar (timeout); |
| 358 | } |
| 359 | return value; |
| 360 | } |
| 361 | |
| 362 | #if 0 |
| 363 | /* Get N 32-bit words from remote, each preceded by a space, and put |
| 364 | them in registers starting at REGNO. */ |
| 365 | |
| 366 | static void |
| 367 | get_hex_regs (int n, int regno) |
| 368 | { |
| 369 | long val; |
| 370 | int i; |
| 371 | |
| 372 | for (i = 0; i < n; i++) |
| 373 | { |
| 374 | int j; |
| 375 | |
| 376 | val = 0; |
| 377 | for (j = 0; j < 8; j++) |
| 378 | val = (val << 4) + get_hex_digit (j == 0); |
| 379 | supply_register (regno++, (char *) &val); |
| 380 | } |
| 381 | } |
| 382 | #endif |
| 383 | |
| 384 | /* This is called not only when we first attach, but also when the |
| 385 | user types "run" after having attached. */ |
| 386 | |
| 387 | static void |
| 388 | e7000_create_inferior (char *execfile, char *args, char **env) |
| 389 | { |
| 390 | int entry_pt; |
| 391 | |
| 392 | if (args && *args) |
| 393 | error ("Can't pass arguments to remote E7000DEBUG process"); |
| 394 | |
| 395 | if (execfile == 0 || exec_bfd == 0) |
| 396 | error ("No executable file specified"); |
| 397 | |
| 398 | entry_pt = (int) bfd_get_start_address (exec_bfd); |
| 399 | |
| 400 | #ifdef CREATE_INFERIOR_HOOK |
| 401 | CREATE_INFERIOR_HOOK (0); /* No process-ID */ |
| 402 | #endif |
| 403 | |
| 404 | /* The "process" (board) is already stopped awaiting our commands, and |
| 405 | the program is already downloaded. We just set its PC and go. */ |
| 406 | |
| 407 | clear_proceed_status (); |
| 408 | |
| 409 | /* Tell wait_for_inferior that we've started a new process. */ |
| 410 | init_wait_for_inferior (); |
| 411 | |
| 412 | /* Set up the "saved terminal modes" of the inferior |
| 413 | based on what modes we are starting it with. */ |
| 414 | target_terminal_init (); |
| 415 | |
| 416 | /* Install inferior's terminal modes. */ |
| 417 | target_terminal_inferior (); |
| 418 | |
| 419 | /* insert_step_breakpoint (); FIXME, do we need this? */ |
| 420 | proceed ((CORE_ADDR) entry_pt, -1, 0); /* Let 'er rip... */ |
| 421 | } |
| 422 | |
| 423 | /* Open a connection to a remote debugger. NAME is the filename used |
| 424 | for communication. */ |
| 425 | |
| 426 | static int baudrate = 9600; |
| 427 | static char dev_name[100]; |
| 428 | |
| 429 | static char *machine = ""; |
| 430 | static char *user = ""; |
| 431 | static char *passwd = ""; |
| 432 | static char *dir = ""; |
| 433 | |
| 434 | /* Grab the next token and buy some space for it */ |
| 435 | |
| 436 | static char * |
| 437 | next (char **ptr) |
| 438 | { |
| 439 | char *p = *ptr; |
| 440 | char *s; |
| 441 | char *r; |
| 442 | int l = 0; |
| 443 | |
| 444 | while (*p && *p == ' ') |
| 445 | p++; |
| 446 | s = p; |
| 447 | while (*p && (*p != ' ' && *p != '\t')) |
| 448 | { |
| 449 | l++; |
| 450 | p++; |
| 451 | } |
| 452 | r = xmalloc (l + 1); |
| 453 | memcpy (r, s, l); |
| 454 | r[l] = 0; |
| 455 | *ptr = p; |
| 456 | return r; |
| 457 | } |
| 458 | |
| 459 | static void |
| 460 | e7000_login_command (char *args, int from_tty) |
| 461 | { |
| 462 | if (args) |
| 463 | { |
| 464 | machine = next (&args); |
| 465 | user = next (&args); |
| 466 | passwd = next (&args); |
| 467 | dir = next (&args); |
| 468 | if (from_tty) |
| 469 | { |
| 470 | printf_unfiltered ("Set info to %s %s %s %s\n", machine, user, passwd, dir); |
| 471 | } |
| 472 | } |
| 473 | else |
| 474 | { |
| 475 | error ("Syntax is ftplogin <machine> <user> <passwd> <directory>"); |
| 476 | } |
| 477 | } |
| 478 | |
| 479 | /* Start an ftp transfer from the E7000 to a host */ |
| 480 | |
| 481 | static void |
| 482 | e7000_ftp_command (char *args, int from_tty) |
| 483 | { |
| 484 | /* FIXME: arbitrary limit on machine names and such. */ |
| 485 | char buf[200]; |
| 486 | |
| 487 | int oldtimeout = timeout; |
| 488 | timeout = remote_timeout; |
| 489 | |
| 490 | sprintf (buf, "ftp %s\r", machine); |
| 491 | puts_e7000debug (buf); |
| 492 | expect (" Username : "); |
| 493 | sprintf (buf, "%s\r", user); |
| 494 | puts_e7000debug (buf); |
| 495 | expect (" Password : "); |
| 496 | write_e7000 (passwd); |
| 497 | write_e7000 ("\r"); |
| 498 | expect ("success\r"); |
| 499 | expect ("FTP>"); |
| 500 | sprintf (buf, "cd %s\r", dir); |
| 501 | puts_e7000debug (buf); |
| 502 | expect ("FTP>"); |
| 503 | sprintf (buf, "ll 0;s:%s\r", args); |
| 504 | puts_e7000debug (buf); |
| 505 | expect ("FTP>"); |
| 506 | puts_e7000debug ("bye\r"); |
| 507 | expect (":"); |
| 508 | timeout = oldtimeout; |
| 509 | } |
| 510 | |
| 511 | static int |
| 512 | e7000_parse_device (char *args, char *dev_name, int baudrate) |
| 513 | { |
| 514 | char junk[128]; |
| 515 | int n = 0; |
| 516 | if (args && strcasecmp (args, "pc") == 0) |
| 517 | { |
| 518 | strcpy (dev_name, args); |
| 519 | using_pc = 1; |
| 520 | } |
| 521 | else |
| 522 | { |
| 523 | /* FIXME! temp hack to allow use with port master - |
| 524 | target tcp_remote <device> */ |
| 525 | if (args && strncmp (args, "tcp", 10) == 0) |
| 526 | { |
| 527 | char com_type[128]; |
| 528 | n = sscanf (args, " %s %s %d %s", com_type, dev_name, &baudrate, junk); |
| 529 | using_tcp_remote = 1; |
| 530 | n--; |
| 531 | } |
| 532 | else if (args) |
| 533 | { |
| 534 | n = sscanf (args, " %s %d %s", dev_name, &baudrate, junk); |
| 535 | } |
| 536 | |
| 537 | if (n != 1 && n != 2) |
| 538 | { |
| 539 | error ("Bad arguments. Usage:\ttarget e7000 <device> <speed>\n\ |
| 540 | or \t\ttarget e7000 <host>[:<port>]\n\ |
| 541 | or \t\ttarget e7000 tcp_remote <host>[:<port>]\n\ |
| 542 | or \t\ttarget e7000 pc\n"); |
| 543 | } |
| 544 | |
| 545 | #if !defined(__GO32__) && !defined(_WIN32) |
| 546 | /* FIXME! test for ':' is ambiguous */ |
| 547 | if (n == 1 && strchr (dev_name, ':') == 0) |
| 548 | { |
| 549 | /* Default to normal telnet port */ |
| 550 | /* serial_open will use this to determine tcp communication */ |
| 551 | strcat (dev_name, ":23"); |
| 552 | } |
| 553 | #endif |
| 554 | if (!using_tcp_remote && strchr (dev_name, ':')) |
| 555 | using_tcp = 1; |
| 556 | } |
| 557 | |
| 558 | return n; |
| 559 | } |
| 560 | |
| 561 | /* Stub for catch_errors. */ |
| 562 | |
| 563 | static int |
| 564 | e7000_start_remote (void *dummy) |
| 565 | { |
| 566 | int loop; |
| 567 | int sync; |
| 568 | int try; |
| 569 | int quit_trying; |
| 570 | |
| 571 | immediate_quit++; /* Allow user to interrupt it */ |
| 572 | |
| 573 | /* Hello? Are you there? */ |
| 574 | sync = 0; |
| 575 | loop = 0; |
| 576 | try = 0; |
| 577 | quit_trying = 20; |
| 578 | putchar_e7000 (CTRLC); |
| 579 | while (!sync && ++try <= quit_trying) |
| 580 | { |
| 581 | int c; |
| 582 | |
| 583 | printf_unfiltered ("[waiting for e7000...]\n"); |
| 584 | |
| 585 | write_e7000 ("\r"); |
| 586 | c = readchar (1); |
| 587 | |
| 588 | /* FIXME! this didn't seem right-> while (c != SERIAL_TIMEOUT) |
| 589 | * we get stuck in this loop ... |
| 590 | * We may never timeout, and never sync up :-( |
| 591 | */ |
| 592 | while (!sync && c != -1) |
| 593 | { |
| 594 | /* Dont echo cr's */ |
| 595 | if (c != '\r') |
| 596 | { |
| 597 | putchar_unfiltered (c); |
| 598 | gdb_flush (gdb_stdout); |
| 599 | } |
| 600 | /* Shouldn't we either break here, or check for sync in inner loop? */ |
| 601 | if (c == ':') |
| 602 | sync = 1; |
| 603 | |
| 604 | if (loop++ == 20) |
| 605 | { |
| 606 | putchar_e7000 (CTRLC); |
| 607 | loop = 0; |
| 608 | } |
| 609 | |
| 610 | QUIT; |
| 611 | |
| 612 | if (quit_flag) |
| 613 | { |
| 614 | putchar_e7000 (CTRLC); |
| 615 | /* Was-> quit_flag = 0; */ |
| 616 | c = -1; |
| 617 | quit_trying = try + 1; /* we don't want to try anymore */ |
| 618 | } |
| 619 | else |
| 620 | { |
| 621 | c = readchar (1); |
| 622 | } |
| 623 | } |
| 624 | } |
| 625 | |
| 626 | if (!sync) |
| 627 | { |
| 628 | fprintf_unfiltered (gdb_stderr, "Giving up after %d tries...\n", try); |
| 629 | error ("Unable to synchronize with target.\n"); |
| 630 | } |
| 631 | |
| 632 | puts_e7000debug ("\r"); |
| 633 | expect_prompt (); |
| 634 | puts_e7000debug ("b -\r"); /* Clear breakpoints */ |
| 635 | expect_prompt (); |
| 636 | |
| 637 | immediate_quit--; |
| 638 | |
| 639 | /* This is really the job of start_remote however, that makes an assumption |
| 640 | that the target is about to print out a status message of some sort. That |
| 641 | doesn't happen here. */ |
| 642 | |
| 643 | flush_cached_frames (); |
| 644 | registers_changed (); |
| 645 | stop_pc = read_pc (); |
| 646 | set_current_frame (create_new_frame (read_fp (), stop_pc)); |
| 647 | select_frame (get_current_frame (), 0); |
| 648 | print_stack_frame (selected_frame, -1, 1); |
| 649 | |
| 650 | return 1; |
| 651 | } |
| 652 | |
| 653 | static void |
| 654 | e7000_open (char *args, int from_tty) |
| 655 | { |
| 656 | int n; |
| 657 | |
| 658 | target_preopen (from_tty); |
| 659 | |
| 660 | n = e7000_parse_device (args, dev_name, baudrate); |
| 661 | |
| 662 | push_target (&e7000_ops); |
| 663 | |
| 664 | e7000_desc = SERIAL_OPEN (dev_name); |
| 665 | |
| 666 | if (!e7000_desc) |
| 667 | perror_with_name (dev_name); |
| 668 | |
| 669 | SERIAL_SETBAUDRATE (e7000_desc, baudrate); |
| 670 | SERIAL_RAW (e7000_desc); |
| 671 | |
| 672 | #ifdef GDB_TARGET_IS_H8300 |
| 673 | h8300hmode = 1; |
| 674 | #endif |
| 675 | |
| 676 | /* Start the remote connection; if error (0), discard this target. |
| 677 | In particular, if the user quits, be sure to discard it |
| 678 | (we'd be in an inconsistent state otherwise). */ |
| 679 | if (!catch_errors (e7000_start_remote, (char *) 0, |
| 680 | "Couldn't establish connection to remote target\n", RETURN_MASK_ALL)) |
| 681 | if (from_tty) |
| 682 | printf_filtered ("Remote target %s connected to %s\n", target_shortname, |
| 683 | dev_name); |
| 684 | } |
| 685 | |
| 686 | /* Close out all files and local state before this target loses control. */ |
| 687 | |
| 688 | static void |
| 689 | e7000_close (int quitting) |
| 690 | { |
| 691 | if (e7000_desc) |
| 692 | { |
| 693 | SERIAL_CLOSE (e7000_desc); |
| 694 | e7000_desc = 0; |
| 695 | } |
| 696 | } |
| 697 | |
| 698 | /* Terminate the open connection to the remote debugger. Use this |
| 699 | when you want to detach and do something else with your gdb. */ |
| 700 | |
| 701 | static void |
| 702 | e7000_detach (char *arg, int from_tty) |
| 703 | { |
| 704 | pop_target (); /* calls e7000_close to do the real work */ |
| 705 | if (from_tty) |
| 706 | printf_unfiltered ("Ending remote %s debugging\n", target_shortname); |
| 707 | } |
| 708 | |
| 709 | /* Tell the remote machine to resume. */ |
| 710 | |
| 711 | static void |
| 712 | e7000_resume (int pid, int step, enum target_signal sigal) |
| 713 | { |
| 714 | if (step) |
| 715 | puts_e7000debug ("S\r"); |
| 716 | else |
| 717 | puts_e7000debug ("G\r"); |
| 718 | } |
| 719 | |
| 720 | /* Read the remote registers into the block REGS. |
| 721 | |
| 722 | For the H8/300 a register dump looks like: |
| 723 | |
| 724 | PC=00021A CCR=80:I******* |
| 725 | ER0 - ER3 0000000A 0000002E 0000002E 00000000 |
| 726 | ER4 - ER7 00000000 00000000 00000000 00FFEFF6 |
| 727 | 000218 MOV.B R1L,R2L |
| 728 | STEP NORMAL END or |
| 729 | BREAK POINT |
| 730 | */ |
| 731 | |
| 732 | char *want_h8300h = "PC=%p CCR=%c\n\ |
| 733 | ER0 - ER3 %0 %1 %2 %3\n\ |
| 734 | ER4 - ER7 %4 %5 %6 %7\n"; |
| 735 | |
| 736 | char *want_nopc_h8300h = "%p CCR=%c\n\ |
| 737 | ER0 - ER3 %0 %1 %2 %3\n\ |
| 738 | ER4 - ER7 %4 %5 %6 %7"; |
| 739 | |
| 740 | char *want_h8300s = "PC=%p CCR=%c\n\ |
| 741 | MACH=\n\ |
| 742 | ER0 - ER3 %0 %1 %2 %3\n\ |
| 743 | ER4 - ER7 %4 %5 %6 %7\n"; |
| 744 | |
| 745 | char *want_nopc_h8300s = "%p CCR=%c EXR=%9\n\ |
| 746 | ER0 - ER3 %0 %1 %2 %3\n\ |
| 747 | ER4 - ER7 %4 %5 %6 %7"; |
| 748 | |
| 749 | char *want_sh = "PC=%16 SR=%22\n\ |
| 750 | PR=%17 GBR=%18 VBR=%19\n\ |
| 751 | MACH=%20 MACL=%21\n\ |
| 752 | R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\ |
| 753 | R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n"; |
| 754 | |
| 755 | char *want_nopc_sh = "%16 SR=%22\n\ |
| 756 | PR=%17 GBR=%18 VBR=%19\n\ |
| 757 | MACH=%20 MACL=%21\n\ |
| 758 | R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\ |
| 759 | R8-15 %8 %9 %10 %11 %12 %13 %14 %15"; |
| 760 | |
| 761 | char *want_sh3 = "PC=%16 SR=%22\n\ |
| 762 | PR=%17 GBR=%18 VBR=%19\n\ |
| 763 | MACH=%20 MACL=%21 SSR=%23 SPC=%24\n\ |
| 764 | R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\ |
| 765 | R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\ |
| 766 | R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\ |
| 767 | R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\ |
| 768 | R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\ |
| 769 | R4_BANK1-R7_BANK1 %37 %38 %39 %40"; |
| 770 | |
| 771 | char *want_nopc_sh3 = "%16 SR=%22\n\ |
| 772 | PR=%17 GBR=%18 VBR=%19\n\ |
| 773 | MACH=%20 MACL=%21 SSR=%22 SPC=%23\n\ |
| 774 | R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\ |
| 775 | R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\ |
| 776 | R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\ |
| 777 | R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\ |
| 778 | R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\ |
| 779 | R4_BANK1-R7_BANK1 %37 %38 %39 %40"; |
| 780 | |
| 781 | static int |
| 782 | gch (void) |
| 783 | { |
| 784 | return readchar (timeout); |
| 785 | } |
| 786 | |
| 787 | static unsigned int |
| 788 | gbyte (void) |
| 789 | { |
| 790 | int high = convert_hex_digit (gch ()); |
| 791 | int low = convert_hex_digit (gch ()); |
| 792 | |
| 793 | return (high << 4) + low; |
| 794 | } |
| 795 | |
| 796 | void |
| 797 | fetch_regs_from_dump (int (*nextchar) (), char *want) |
| 798 | { |
| 799 | int regno; |
| 800 | char buf[MAX_REGISTER_RAW_SIZE]; |
| 801 | |
| 802 | int thischar = nextchar (); |
| 803 | |
| 804 | while (*want) |
| 805 | { |
| 806 | switch (*want) |
| 807 | { |
| 808 | case '\n': |
| 809 | /* Skip to end of line and then eat all new line type stuff */ |
| 810 | while (thischar != '\n' && thischar != '\r') |
| 811 | thischar = nextchar (); |
| 812 | while (thischar == '\n' || thischar == '\r') |
| 813 | thischar = nextchar (); |
| 814 | want++; |
| 815 | break; |
| 816 | |
| 817 | case ' ': |
| 818 | while (thischar == ' ' |
| 819 | || thischar == '\t' |
| 820 | || thischar == '\r' |
| 821 | || thischar == '\n') |
| 822 | thischar = nextchar (); |
| 823 | want++; |
| 824 | break; |
| 825 | |
| 826 | default: |
| 827 | if (*want == thischar) |
| 828 | { |
| 829 | want++; |
| 830 | if (*want) |
| 831 | thischar = nextchar (); |
| 832 | |
| 833 | } |
| 834 | else if (thischar == ' ' || thischar == '\n' || thischar == '\r') |
| 835 | { |
| 836 | thischar = nextchar (); |
| 837 | } |
| 838 | else |
| 839 | { |
| 840 | error ("out of sync in fetch registers wanted <%s>, got <%c 0x%x>", |
| 841 | want, thischar, thischar); |
| 842 | } |
| 843 | |
| 844 | break; |
| 845 | case '%': |
| 846 | /* Got a register command */ |
| 847 | want++; |
| 848 | switch (*want) |
| 849 | { |
| 850 | #ifdef PC_REGNUM |
| 851 | case 'p': |
| 852 | regno = PC_REGNUM; |
| 853 | want++; |
| 854 | break; |
| 855 | #endif |
| 856 | #ifdef CCR_REGNUM |
| 857 | case 'c': |
| 858 | regno = CCR_REGNUM; |
| 859 | want++; |
| 860 | break; |
| 861 | #endif |
| 862 | #ifdef SP_REGNUM |
| 863 | case 's': |
| 864 | regno = SP_REGNUM; |
| 865 | want++; |
| 866 | break; |
| 867 | #endif |
| 868 | #ifdef FP_REGNUM |
| 869 | case 'f': |
| 870 | regno = FP_REGNUM; |
| 871 | want++; |
| 872 | break; |
| 873 | #endif |
| 874 | |
| 875 | default: |
| 876 | if (isdigit (want[0])) |
| 877 | { |
| 878 | if (isdigit (want[1])) |
| 879 | { |
| 880 | regno = (want[0] - '0') * 10 + want[1] - '0'; |
| 881 | want += 2; |
| 882 | } |
| 883 | else |
| 884 | { |
| 885 | regno = want[0] - '0'; |
| 886 | want++; |
| 887 | } |
| 888 | } |
| 889 | |
| 890 | else |
| 891 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
| 892 | } |
| 893 | store_signed_integer (buf, |
| 894 | REGISTER_RAW_SIZE (regno), |
| 895 | (LONGEST) get_hex (&thischar)); |
| 896 | supply_register (regno, buf); |
| 897 | break; |
| 898 | } |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | static void |
| 903 | e7000_fetch_registers (void) |
| 904 | { |
| 905 | int regno; |
| 906 | char *wanted; |
| 907 | |
| 908 | puts_e7000debug ("R\r"); |
| 909 | |
| 910 | if (TARGET_ARCHITECTURE->arch == bfd_arch_sh) |
| 911 | { |
| 912 | wanted = want_sh; |
| 913 | switch (TARGET_ARCHITECTURE->mach) |
| 914 | { |
| 915 | case bfd_mach_sh3: |
| 916 | case bfd_mach_sh3e: |
| 917 | case bfd_mach_sh4: |
| 918 | wanted = want_sh3; |
| 919 | } |
| 920 | } |
| 921 | #ifdef GDB_TARGET_IS_H8300 |
| 922 | if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300) |
| 923 | { |
| 924 | if (h8300smode) |
| 925 | wanted = want_h8300s; |
| 926 | else |
| 927 | wanted = want_h8300h; |
| 928 | } |
| 929 | #endif |
| 930 | |
| 931 | fetch_regs_from_dump (gch, wanted); |
| 932 | |
| 933 | /* And supply the extra ones the simulator uses */ |
| 934 | for (regno = NUM_REALREGS; regno < NUM_REGS; regno++) |
| 935 | { |
| 936 | int buf = 0; |
| 937 | |
| 938 | supply_register (regno, (char *) (&buf)); |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns |
| 943 | errno value. */ |
| 944 | |
| 945 | static void |
| 946 | e7000_fetch_register (int regno) |
| 947 | { |
| 948 | e7000_fetch_registers (); |
| 949 | } |
| 950 | |
| 951 | /* Store the remote registers from the contents of the block REGS. */ |
| 952 | |
| 953 | static void |
| 954 | e7000_store_registers (void) |
| 955 | { |
| 956 | int regno; |
| 957 | |
| 958 | for (regno = 0; regno < NUM_REALREGS; regno++) |
| 959 | e7000_store_register (regno); |
| 960 | |
| 961 | registers_changed (); |
| 962 | } |
| 963 | |
| 964 | /* Store register REGNO, or all if REGNO == 0. Return errno value. */ |
| 965 | |
| 966 | static void |
| 967 | e7000_store_register (int regno) |
| 968 | { |
| 969 | char buf[200]; |
| 970 | |
| 971 | if (regno == -1) |
| 972 | { |
| 973 | e7000_store_registers (); |
| 974 | return; |
| 975 | } |
| 976 | |
| 977 | if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300) |
| 978 | { |
| 979 | if (regno <= 7) |
| 980 | { |
| 981 | sprintf (buf, ".ER%d %lx\r", regno, read_register (regno)); |
| 982 | puts_e7000debug (buf); |
| 983 | } |
| 984 | else if (regno == PC_REGNUM) |
| 985 | { |
| 986 | sprintf (buf, ".PC %lx\r", read_register (regno)); |
| 987 | puts_e7000debug (buf); |
| 988 | } |
| 989 | #ifdef CCR_REGNUM |
| 990 | else if (regno == CCR_REGNUM) |
| 991 | { |
| 992 | sprintf (buf, ".CCR %lx\r", read_register (regno)); |
| 993 | puts_e7000debug (buf); |
| 994 | } |
| 995 | #endif |
| 996 | } |
| 997 | |
| 998 | else if (TARGET_ARCHITECTURE->arch == bfd_arch_sh) |
| 999 | { |
| 1000 | if (regno == PC_REGNUM) |
| 1001 | { |
| 1002 | sprintf (buf, ".PC %lx\r", read_register (regno)); |
| 1003 | puts_e7000debug (buf); |
| 1004 | } |
| 1005 | |
| 1006 | else if (regno == SR_REGNUM) |
| 1007 | { |
| 1008 | sprintf (buf, ".SR %lx\r", read_register (regno)); |
| 1009 | puts_e7000debug (buf); |
| 1010 | } |
| 1011 | |
| 1012 | else if (regno == PR_REGNUM) |
| 1013 | { |
| 1014 | sprintf (buf, ".PR %lx\r", read_register (regno)); |
| 1015 | puts_e7000debug (buf); |
| 1016 | } |
| 1017 | |
| 1018 | else if (regno == GBR_REGNUM) |
| 1019 | { |
| 1020 | sprintf (buf, ".GBR %lx\r", read_register (regno)); |
| 1021 | puts_e7000debug (buf); |
| 1022 | } |
| 1023 | |
| 1024 | else if (regno == VBR_REGNUM) |
| 1025 | { |
| 1026 | sprintf (buf, ".VBR %lx\r", read_register (regno)); |
| 1027 | puts_e7000debug (buf); |
| 1028 | } |
| 1029 | |
| 1030 | else if (regno == MACH_REGNUM) |
| 1031 | { |
| 1032 | sprintf (buf, ".MACH %lx\r", read_register (regno)); |
| 1033 | puts_e7000debug (buf); |
| 1034 | } |
| 1035 | |
| 1036 | else if (regno == MACL_REGNUM) |
| 1037 | { |
| 1038 | sprintf (buf, ".MACL %lx\r", read_register (regno)); |
| 1039 | puts_e7000debug (buf); |
| 1040 | } |
| 1041 | else |
| 1042 | { |
| 1043 | sprintf (buf, ".R%d %lx\r", regno, read_register (regno)); |
| 1044 | puts_e7000debug (buf); |
| 1045 | } |
| 1046 | } |
| 1047 | |
| 1048 | expect_prompt (); |
| 1049 | } |
| 1050 | |
| 1051 | /* Get ready to modify the registers array. On machines which store |
| 1052 | individual registers, this doesn't need to do anything. On machines |
| 1053 | which store all the registers in one fell swoop, this makes sure |
| 1054 | that registers contains all the registers from the program being |
| 1055 | debugged. */ |
| 1056 | |
| 1057 | static void |
| 1058 | e7000_prepare_to_store (void) |
| 1059 | { |
| 1060 | /* Do nothing, since we can store individual regs */ |
| 1061 | } |
| 1062 | |
| 1063 | static void |
| 1064 | e7000_files_info (struct target_ops *ops) |
| 1065 | { |
| 1066 | printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baudrate); |
| 1067 | } |
| 1068 | |
| 1069 | static int |
| 1070 | stickbyte (char *where, unsigned int what) |
| 1071 | { |
| 1072 | static CONST char digs[] = "0123456789ABCDEF"; |
| 1073 | |
| 1074 | where[0] = digs[(what >> 4) & 0xf]; |
| 1075 | where[1] = digs[(what & 0xf) & 0xf]; |
| 1076 | |
| 1077 | return what; |
| 1078 | } |
| 1079 | |
| 1080 | /* Write a small ammount of memory. */ |
| 1081 | |
| 1082 | static int |
| 1083 | write_small (CORE_ADDR memaddr, unsigned char *myaddr, int len) |
| 1084 | { |
| 1085 | int i; |
| 1086 | char buf[200]; |
| 1087 | |
| 1088 | for (i = 0; i < len; i++) |
| 1089 | { |
| 1090 | if (((memaddr + i) & 3) == 0 && (i + 3 < len)) |
| 1091 | { |
| 1092 | /* Can be done with a long word */ |
| 1093 | sprintf (buf, "m %lx %x%02x%02x%02x;l\r", |
| 1094 | memaddr + i, |
| 1095 | myaddr[i], myaddr[i + 1], myaddr[i + 2], myaddr[i + 3]); |
| 1096 | puts_e7000debug (buf); |
| 1097 | i += 3; |
| 1098 | } |
| 1099 | else |
| 1100 | { |
| 1101 | sprintf (buf, "m %lx %x\r", memaddr + i, myaddr[i]); |
| 1102 | puts_e7000debug (buf); |
| 1103 | } |
| 1104 | } |
| 1105 | |
| 1106 | expect_prompt (); |
| 1107 | |
| 1108 | return len; |
| 1109 | } |
| 1110 | |
| 1111 | /* Write a large ammount of memory, this only works with the serial |
| 1112 | mode enabled. Command is sent as |
| 1113 | |
| 1114 | il ;s:s\r -> |
| 1115 | <- il ;s:s\r |
| 1116 | <- ENQ |
| 1117 | ACK -> |
| 1118 | <- LO s\r |
| 1119 | Srecords... |
| 1120 | ^Z -> |
| 1121 | <- ENQ |
| 1122 | ACK -> |
| 1123 | <- : |
| 1124 | */ |
| 1125 | |
| 1126 | static int |
| 1127 | write_large (CORE_ADDR memaddr, unsigned char *myaddr, int len) |
| 1128 | { |
| 1129 | int i; |
| 1130 | #define maxstride 128 |
| 1131 | int stride; |
| 1132 | |
| 1133 | puts_e7000debug ("IL ;S:FK\r"); |
| 1134 | expect (ENQSTRING); |
| 1135 | putchar_e7000 (ACK); |
| 1136 | expect ("LO FK\r"); |
| 1137 | |
| 1138 | for (i = 0; i < len; i += stride) |
| 1139 | { |
| 1140 | char compose[maxstride * 2 + 50]; |
| 1141 | int address = i + memaddr; |
| 1142 | int j; |
| 1143 | int check_sum; |
| 1144 | int where = 0; |
| 1145 | int alen; |
| 1146 | |
| 1147 | stride = len - i; |
| 1148 | if (stride > maxstride) |
| 1149 | stride = maxstride; |
| 1150 | |
| 1151 | compose[where++] = 'S'; |
| 1152 | check_sum = 0; |
| 1153 | if (address >= 0xffffff) |
| 1154 | alen = 4; |
| 1155 | else if (address >= 0xffff) |
| 1156 | alen = 3; |
| 1157 | else |
| 1158 | alen = 2; |
| 1159 | /* Insert type. */ |
| 1160 | compose[where++] = alen - 1 + '0'; |
| 1161 | /* Insert length. */ |
| 1162 | check_sum += stickbyte (compose + where, alen + stride + 1); |
| 1163 | where += 2; |
| 1164 | while (alen > 0) |
| 1165 | { |
| 1166 | alen--; |
| 1167 | check_sum += stickbyte (compose + where, address >> (8 * (alen))); |
| 1168 | where += 2; |
| 1169 | } |
| 1170 | |
| 1171 | for (j = 0; j < stride; j++) |
| 1172 | { |
| 1173 | check_sum += stickbyte (compose + where, myaddr[i + j]); |
| 1174 | where += 2; |
| 1175 | } |
| 1176 | stickbyte (compose + where, ~check_sum); |
| 1177 | where += 2; |
| 1178 | compose[where++] = '\r'; |
| 1179 | compose[where++] = '\n'; |
| 1180 | compose[where++] = 0; |
| 1181 | |
| 1182 | SERIAL_WRITE (e7000_desc, compose, where); |
| 1183 | j = readchar (0); |
| 1184 | if (j == -1) |
| 1185 | { |
| 1186 | /* This is ok - nothing there */ |
| 1187 | } |
| 1188 | else if (j == ENQ) |
| 1189 | { |
| 1190 | /* Hmm, it's trying to tell us something */ |
| 1191 | expect (":"); |
| 1192 | error ("Error writing memory"); |
| 1193 | } |
| 1194 | else |
| 1195 | { |
| 1196 | printf_unfiltered ("@%d}@", j); |
| 1197 | while ((j = readchar (0)) > 0) |
| 1198 | { |
| 1199 | printf_unfiltered ("@{%d}@", j); |
| 1200 | } |
| 1201 | } |
| 1202 | } |
| 1203 | |
| 1204 | /* Send the trailer record */ |
| 1205 | write_e7000 ("S70500000000FA\r"); |
| 1206 | putchar_e7000 (CTRLZ); |
| 1207 | expect (ENQSTRING); |
| 1208 | putchar_e7000 (ACK); |
| 1209 | expect (":"); |
| 1210 | |
| 1211 | return len; |
| 1212 | } |
| 1213 | |
| 1214 | /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's |
| 1215 | memory at MEMADDR. Returns length moved. |
| 1216 | |
| 1217 | Can't use the Srecord load over ethernet, so don't use fast method |
| 1218 | then. */ |
| 1219 | |
| 1220 | static int |
| 1221 | e7000_write_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) |
| 1222 | { |
| 1223 | if (len < 16 || using_tcp || using_pc) |
| 1224 | return write_small (memaddr, myaddr, len); |
| 1225 | else |
| 1226 | return write_large (memaddr, myaddr, len); |
| 1227 | } |
| 1228 | |
| 1229 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result |
| 1230 | at debugger address MYADDR. Returns length moved. |
| 1231 | |
| 1232 | Small transactions we send |
| 1233 | m <addr>;l |
| 1234 | and receive |
| 1235 | 00000000 12345678 ? |
| 1236 | */ |
| 1237 | |
| 1238 | static int |
| 1239 | e7000_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) |
| 1240 | { |
| 1241 | int count; |
| 1242 | int c; |
| 1243 | int i; |
| 1244 | char buf[200]; |
| 1245 | /* Starting address of this pass. */ |
| 1246 | |
| 1247 | /* printf("READ INF %x %x %d\n", memaddr, myaddr, len); */ |
| 1248 | if (((memaddr - 1) + len) < memaddr) |
| 1249 | { |
| 1250 | errno = EIO; |
| 1251 | return 0; |
| 1252 | } |
| 1253 | |
| 1254 | sprintf (buf, "m %lx;l\r", memaddr); |
| 1255 | puts_e7000debug (buf); |
| 1256 | |
| 1257 | for (count = 0; count < len; count += 4) |
| 1258 | { |
| 1259 | /* Suck away the address */ |
| 1260 | c = gch (); |
| 1261 | while (c != ' ') |
| 1262 | c = gch (); |
| 1263 | c = gch (); |
| 1264 | if (c == '*') |
| 1265 | { /* Some kind of error */ |
| 1266 | puts_e7000debug (".\r"); /* Some errors leave us in memory input mode */ |
| 1267 | expect_full_prompt (); |
| 1268 | return -1; |
| 1269 | } |
| 1270 | while (c != ' ') |
| 1271 | c = gch (); |
| 1272 | |
| 1273 | /* Now read in the data */ |
| 1274 | for (i = 0; i < 4; i++) |
| 1275 | { |
| 1276 | int b = gbyte (); |
| 1277 | if (count + i < len) |
| 1278 | { |
| 1279 | myaddr[count + i] = b; |
| 1280 | } |
| 1281 | } |
| 1282 | |
| 1283 | /* Skip the trailing ? and send a . to end and a cr for more */ |
| 1284 | gch (); |
| 1285 | gch (); |
| 1286 | if (count + 4 >= len) |
| 1287 | puts_e7000debug (".\r"); |
| 1288 | else |
| 1289 | puts_e7000debug ("\r"); |
| 1290 | |
| 1291 | } |
| 1292 | expect_prompt (); |
| 1293 | return len; |
| 1294 | } |
| 1295 | |
| 1296 | |
| 1297 | |
| 1298 | /* |
| 1299 | For large transfers we used to send |
| 1300 | |
| 1301 | |
| 1302 | d <addr> <endaddr>\r |
| 1303 | |
| 1304 | and receive |
| 1305 | <ADDRESS> < D A T A > < ASCII CODE > |
| 1306 | 00000000 5F FD FD FF DF 7F DF FF 01 00 01 00 02 00 08 04 "_..............." |
| 1307 | 00000010 FF D7 FF 7F D7 F1 7F FF 00 05 00 00 08 00 40 00 "..............@." |
| 1308 | 00000020 7F FD FF F7 7F FF FF F7 00 00 00 00 00 00 00 00 "................" |
| 1309 | |
| 1310 | A cost in chars for each transaction of 80 + 5*n-bytes. |
| 1311 | |
| 1312 | Large transactions could be done with the srecord load code, but |
| 1313 | there is a pause for a second before dumping starts, which slows the |
| 1314 | average rate down! |
| 1315 | */ |
| 1316 | |
| 1317 | static int |
| 1318 | e7000_read_inferior_memory_large (CORE_ADDR memaddr, unsigned char *myaddr, |
| 1319 | int len) |
| 1320 | { |
| 1321 | int count; |
| 1322 | int c; |
| 1323 | char buf[200]; |
| 1324 | |
| 1325 | /* Starting address of this pass. */ |
| 1326 | |
| 1327 | if (((memaddr - 1) + len) < memaddr) |
| 1328 | { |
| 1329 | errno = EIO; |
| 1330 | return 0; |
| 1331 | } |
| 1332 | |
| 1333 | sprintf (buf, "d %lx %lx\r", memaddr, memaddr + len - 1); |
| 1334 | puts_e7000debug (buf); |
| 1335 | |
| 1336 | count = 0; |
| 1337 | c = gch (); |
| 1338 | |
| 1339 | /* skip down to the first ">" */ |
| 1340 | while (c != '>') |
| 1341 | c = gch (); |
| 1342 | /* now skip to the end of that line */ |
| 1343 | while (c != '\r') |
| 1344 | c = gch (); |
| 1345 | c = gch (); |
| 1346 | |
| 1347 | while (count < len) |
| 1348 | { |
| 1349 | /* get rid of any white space before the address */ |
| 1350 | while (c <= ' ') |
| 1351 | c = gch (); |
| 1352 | |
| 1353 | /* Skip the address */ |
| 1354 | get_hex (&c); |
| 1355 | |
| 1356 | /* read in the bytes on the line */ |
| 1357 | while (c != '"' && count < len) |
| 1358 | { |
| 1359 | if (c == ' ') |
| 1360 | c = gch (); |
| 1361 | else |
| 1362 | { |
| 1363 | myaddr[count++] = get_hex (&c); |
| 1364 | } |
| 1365 | } |
| 1366 | /* throw out the rest of the line */ |
| 1367 | while (c != '\r') |
| 1368 | c = gch (); |
| 1369 | } |
| 1370 | |
| 1371 | /* wait for the ":" prompt */ |
| 1372 | while (c != ':') |
| 1373 | c = gch (); |
| 1374 | |
| 1375 | return len; |
| 1376 | } |
| 1377 | |
| 1378 | #if 0 |
| 1379 | |
| 1380 | static int |
| 1381 | fast_but_for_the_pause_e7000_read_inferior_memory (CORE_ADDR memaddr, |
| 1382 | char *myaddr, int len) |
| 1383 | { |
| 1384 | int loop; |
| 1385 | int c; |
| 1386 | char buf[200]; |
| 1387 | |
| 1388 | if (((memaddr - 1) + len) < memaddr) |
| 1389 | { |
| 1390 | errno = EIO; |
| 1391 | return 0; |
| 1392 | } |
| 1393 | |
| 1394 | sprintf (buf, "is %x@%x:s\r", memaddr, len); |
| 1395 | puts_e7000debug (buf); |
| 1396 | gch (); |
| 1397 | c = gch (); |
| 1398 | if (c != ENQ) |
| 1399 | { |
| 1400 | /* Got an error */ |
| 1401 | error ("Memory read error"); |
| 1402 | } |
| 1403 | putchar_e7000 (ACK); |
| 1404 | expect ("SV s"); |
| 1405 | loop = 1; |
| 1406 | while (loop) |
| 1407 | { |
| 1408 | int type; |
| 1409 | int length; |
| 1410 | int addr; |
| 1411 | int i; |
| 1412 | |
| 1413 | c = gch (); |
| 1414 | switch (c) |
| 1415 | { |
| 1416 | case ENQ: /* ENQ, at the end */ |
| 1417 | loop = 0; |
| 1418 | break; |
| 1419 | case 'S': |
| 1420 | /* Start of an Srecord */ |
| 1421 | type = gch (); |
| 1422 | length = gbyte (); |
| 1423 | switch (type) |
| 1424 | { |
| 1425 | case '7': /* Termination record, ignore */ |
| 1426 | case '0': |
| 1427 | case '8': |
| 1428 | case '9': |
| 1429 | /* Header record - ignore it */ |
| 1430 | while (length--) |
| 1431 | { |
| 1432 | gbyte (); |
| 1433 | } |
| 1434 | break; |
| 1435 | case '1': |
| 1436 | case '2': |
| 1437 | case '3': |
| 1438 | { |
| 1439 | int alen; |
| 1440 | |
| 1441 | alen = type - '0' + 1; |
| 1442 | addr = 0; |
| 1443 | while (alen--) |
| 1444 | { |
| 1445 | addr = (addr << 8) + gbyte (); |
| 1446 | length--; |
| 1447 | } |
| 1448 | |
| 1449 | for (i = 0; i < length - 1; i++) |
| 1450 | myaddr[i + addr - memaddr] = gbyte (); |
| 1451 | |
| 1452 | gbyte (); /* Ignore checksum */ |
| 1453 | } |
| 1454 | } |
| 1455 | } |
| 1456 | } |
| 1457 | |
| 1458 | putchar_e7000 (ACK); |
| 1459 | expect ("TOP ADDRESS ="); |
| 1460 | expect ("END ADDRESS ="); |
| 1461 | expect (":"); |
| 1462 | |
| 1463 | return len; |
| 1464 | } |
| 1465 | |
| 1466 | #endif |
| 1467 | |
| 1468 | /* Transfer LEN bytes between GDB address MYADDR and target address |
| 1469 | MEMADDR. If WRITE is non-zero, transfer them to the target, |
| 1470 | otherwise transfer them from the target. TARGET is unused. |
| 1471 | |
| 1472 | Returns the number of bytes transferred. */ |
| 1473 | |
| 1474 | static int |
| 1475 | e7000_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, |
| 1476 | int len, int write, |
| 1477 | struct mem_attrib *attrib ATTRIBUTE_UNUSED, |
| 1478 | struct target_ops *target ATTRIBUTE_UNUSED) |
| 1479 | { |
| 1480 | if (write) |
| 1481 | return e7000_write_inferior_memory (memaddr, myaddr, len); |
| 1482 | else if (len < 16) |
| 1483 | return e7000_read_inferior_memory (memaddr, myaddr, len); |
| 1484 | else |
| 1485 | return e7000_read_inferior_memory_large (memaddr, myaddr, len); |
| 1486 | } |
| 1487 | |
| 1488 | static void |
| 1489 | e7000_kill (void) |
| 1490 | { |
| 1491 | } |
| 1492 | |
| 1493 | static void |
| 1494 | e7000_load (char *args, int from_tty) |
| 1495 | { |
| 1496 | struct cleanup *old_chain; |
| 1497 | asection *section; |
| 1498 | bfd *pbfd; |
| 1499 | bfd_vma entry; |
| 1500 | #define WRITESIZE 0x1000 |
| 1501 | char buf[2 + 4 + 4 + WRITESIZE]; /* `DT' + <addr> + <len> + <data> */ |
| 1502 | char *filename; |
| 1503 | int quiet; |
| 1504 | int nostart; |
| 1505 | time_t start_time, end_time; /* Start and end times of download */ |
| 1506 | unsigned long data_count; /* Number of bytes transferred to memory */ |
| 1507 | int oldtimeout = timeout; |
| 1508 | |
| 1509 | timeout = remote_timeout; |
| 1510 | |
| 1511 | |
| 1512 | /* FIXME! change test to test for type of download */ |
| 1513 | if (!using_tcp) |
| 1514 | { |
| 1515 | generic_load (args, from_tty); |
| 1516 | return; |
| 1517 | } |
| 1518 | |
| 1519 | /* for direct tcp connections, we can do a fast binary download */ |
| 1520 | buf[0] = 'D'; |
| 1521 | buf[1] = 'T'; |
| 1522 | quiet = 0; |
| 1523 | nostart = 0; |
| 1524 | filename = NULL; |
| 1525 | |
| 1526 | while (*args != '\000') |
| 1527 | { |
| 1528 | char *arg; |
| 1529 | |
| 1530 | while (isspace (*args)) |
| 1531 | args++; |
| 1532 | |
| 1533 | arg = args; |
| 1534 | |
| 1535 | while ((*args != '\000') && !isspace (*args)) |
| 1536 | args++; |
| 1537 | |
| 1538 | if (*args != '\000') |
| 1539 | *args++ = '\000'; |
| 1540 | |
| 1541 | if (*arg != '-') |
| 1542 | filename = arg; |
| 1543 | else if (strncmp (arg, "-quiet", strlen (arg)) == 0) |
| 1544 | quiet = 1; |
| 1545 | else if (strncmp (arg, "-nostart", strlen (arg)) == 0) |
| 1546 | nostart = 1; |
| 1547 | else |
| 1548 | error ("unknown option `%s'", arg); |
| 1549 | } |
| 1550 | |
| 1551 | if (!filename) |
| 1552 | filename = get_exec_file (1); |
| 1553 | |
| 1554 | pbfd = bfd_openr (filename, gnutarget); |
| 1555 | if (pbfd == NULL) |
| 1556 | { |
| 1557 | perror_with_name (filename); |
| 1558 | return; |
| 1559 | } |
| 1560 | old_chain = make_cleanup_bfd_close (pbfd); |
| 1561 | |
| 1562 | if (!bfd_check_format (pbfd, bfd_object)) |
| 1563 | error ("\"%s\" is not an object file: %s", filename, |
| 1564 | bfd_errmsg (bfd_get_error ())); |
| 1565 | |
| 1566 | start_time = time (NULL); |
| 1567 | data_count = 0; |
| 1568 | |
| 1569 | puts_e7000debug ("mw\r"); |
| 1570 | |
| 1571 | expect ("\nOK"); |
| 1572 | |
| 1573 | for (section = pbfd->sections; section; section = section->next) |
| 1574 | { |
| 1575 | if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) |
| 1576 | { |
| 1577 | bfd_vma section_address; |
| 1578 | bfd_size_type section_size; |
| 1579 | file_ptr fptr; |
| 1580 | |
| 1581 | section_address = bfd_get_section_vma (pbfd, section); |
| 1582 | section_size = bfd_get_section_size_before_reloc (section); |
| 1583 | |
| 1584 | if (!quiet) |
| 1585 | printf_filtered ("[Loading section %s at 0x%x (%ud bytes)]\n", |
| 1586 | bfd_get_section_name (pbfd, section), |
| 1587 | section_address, |
| 1588 | section_size); |
| 1589 | |
| 1590 | fptr = 0; |
| 1591 | |
| 1592 | data_count += section_size; |
| 1593 | |
| 1594 | while (section_size > 0) |
| 1595 | { |
| 1596 | int count; |
| 1597 | static char inds[] = "|/-\\"; |
| 1598 | static int k = 0; |
| 1599 | |
| 1600 | QUIT; |
| 1601 | |
| 1602 | count = min (section_size, WRITESIZE); |
| 1603 | |
| 1604 | buf[2] = section_address >> 24; |
| 1605 | buf[3] = section_address >> 16; |
| 1606 | buf[4] = section_address >> 8; |
| 1607 | buf[5] = section_address; |
| 1608 | |
| 1609 | buf[6] = count >> 24; |
| 1610 | buf[7] = count >> 16; |
| 1611 | buf[8] = count >> 8; |
| 1612 | buf[9] = count; |
| 1613 | |
| 1614 | bfd_get_section_contents (pbfd, section, buf + 10, fptr, count); |
| 1615 | |
| 1616 | if (SERIAL_WRITE (e7000_desc, buf, count + 10)) |
| 1617 | fprintf_unfiltered (gdb_stderr, |
| 1618 | "e7000_load: SERIAL_WRITE failed: %s\n", |
| 1619 | safe_strerror (errno)); |
| 1620 | |
| 1621 | expect ("OK"); |
| 1622 | |
| 1623 | if (!quiet) |
| 1624 | { |
| 1625 | printf_unfiltered ("\r%c", inds[k++ % 4]); |
| 1626 | gdb_flush (gdb_stdout); |
| 1627 | } |
| 1628 | |
| 1629 | section_address += count; |
| 1630 | fptr += count; |
| 1631 | section_size -= count; |
| 1632 | } |
| 1633 | } |
| 1634 | } |
| 1635 | |
| 1636 | write_e7000 ("ED"); |
| 1637 | |
| 1638 | expect_prompt (); |
| 1639 | |
| 1640 | end_time = time (NULL); |
| 1641 | |
| 1642 | /* Finally, make the PC point at the start address */ |
| 1643 | |
| 1644 | if (exec_bfd) |
| 1645 | write_pc (bfd_get_start_address (exec_bfd)); |
| 1646 | |
| 1647 | inferior_pid = 0; /* No process now */ |
| 1648 | |
| 1649 | /* This is necessary because many things were based on the PC at the time that |
| 1650 | we attached to the monitor, which is no longer valid now that we have loaded |
| 1651 | new code (and just changed the PC). Another way to do this might be to call |
| 1652 | normal_stop, except that the stack may not be valid, and things would get |
| 1653 | horribly confused... */ |
| 1654 | |
| 1655 | clear_symtab_users (); |
| 1656 | |
| 1657 | if (!nostart) |
| 1658 | { |
| 1659 | entry = bfd_get_start_address (pbfd); |
| 1660 | |
| 1661 | if (!quiet) |
| 1662 | printf_unfiltered ("[Starting %s at 0x%x]\n", filename, entry); |
| 1663 | |
| 1664 | /* start_routine (entry); */ |
| 1665 | } |
| 1666 | |
| 1667 | report_transfer_performance (data_count, start_time, end_time); |
| 1668 | |
| 1669 | do_cleanups (old_chain); |
| 1670 | timeout = oldtimeout; |
| 1671 | } |
| 1672 | |
| 1673 | /* Clean up when a program exits. |
| 1674 | |
| 1675 | The program actually lives on in the remote processor's RAM, and may be |
| 1676 | run again without a download. Don't leave it full of breakpoint |
| 1677 | instructions. */ |
| 1678 | |
| 1679 | static void |
| 1680 | e7000_mourn_inferior (void) |
| 1681 | { |
| 1682 | remove_breakpoints (); |
| 1683 | unpush_target (&e7000_ops); |
| 1684 | generic_mourn_inferior (); /* Do all the proper things now */ |
| 1685 | } |
| 1686 | |
| 1687 | #define MAX_BREAKPOINTS 200 |
| 1688 | #ifdef HARD_BREAKPOINTS |
| 1689 | #define MAX_E7000DEBUG_BREAKPOINTS (BC_BREAKPOINTS ? 5 : MAX_BREAKPOINTS) |
| 1690 | #else |
| 1691 | #define MAX_E7000DEBUG_BREAKPOINTS MAX_BREAKPOINTS |
| 1692 | #endif |
| 1693 | |
| 1694 | /* Since we can change to soft breakpoints dynamically, we must define |
| 1695 | more than enough. Was breakaddr[MAX_E7000DEBUG_BREAKPOINTS]. */ |
| 1696 | static CORE_ADDR breakaddr[MAX_BREAKPOINTS] = |
| 1697 | {0}; |
| 1698 | |
| 1699 | static int |
| 1700 | e7000_insert_breakpoint (CORE_ADDR addr, char *shadow) |
| 1701 | { |
| 1702 | int i; |
| 1703 | char buf[200]; |
| 1704 | #if 0 |
| 1705 | static char nop[2] = NOP; |
| 1706 | #endif |
| 1707 | |
| 1708 | for (i = 0; i <= MAX_E7000DEBUG_BREAKPOINTS; i++) |
| 1709 | if (breakaddr[i] == 0) |
| 1710 | { |
| 1711 | breakaddr[i] = addr; |
| 1712 | /* Save old contents, and insert a nop in the space */ |
| 1713 | #ifdef HARD_BREAKPOINTS |
| 1714 | if (BC_BREAKPOINTS) |
| 1715 | { |
| 1716 | sprintf (buf, "BC%d A=%lx\r", i + 1, addr); |
| 1717 | puts_e7000debug (buf); |
| 1718 | } |
| 1719 | else |
| 1720 | { |
| 1721 | sprintf (buf, "B %lx\r", addr); |
| 1722 | puts_e7000debug (buf); |
| 1723 | } |
| 1724 | #else |
| 1725 | #if 0 |
| 1726 | e7000_read_inferior_memory (addr, shadow, 2); |
| 1727 | e7000_write_inferior_memory (addr, nop, 2); |
| 1728 | #endif |
| 1729 | |
| 1730 | sprintf (buf, "B %x\r", addr); |
| 1731 | puts_e7000debug (buf); |
| 1732 | #endif |
| 1733 | expect_prompt (); |
| 1734 | return 0; |
| 1735 | } |
| 1736 | |
| 1737 | error ("Too many breakpoints ( > %d) for the E7000\n", |
| 1738 | MAX_E7000DEBUG_BREAKPOINTS); |
| 1739 | return 1; |
| 1740 | } |
| 1741 | |
| 1742 | static int |
| 1743 | e7000_remove_breakpoint (CORE_ADDR addr, char *shadow) |
| 1744 | { |
| 1745 | int i; |
| 1746 | char buf[200]; |
| 1747 | |
| 1748 | for (i = 0; i < MAX_E7000DEBUG_BREAKPOINTS; i++) |
| 1749 | if (breakaddr[i] == addr) |
| 1750 | { |
| 1751 | breakaddr[i] = 0; |
| 1752 | #ifdef HARD_BREAKPOINTS |
| 1753 | if (BC_BREAKPOINTS) |
| 1754 | { |
| 1755 | sprintf (buf, "BC%d - \r", i + 1); |
| 1756 | puts_e7000debug (buf); |
| 1757 | } |
| 1758 | else |
| 1759 | { |
| 1760 | sprintf (buf, "B - %lx\r", addr); |
| 1761 | puts_e7000debug (buf); |
| 1762 | } |
| 1763 | expect_prompt (); |
| 1764 | #else |
| 1765 | sprintf (buf, "B - %lx\r", addr); |
| 1766 | puts_e7000debug (buf); |
| 1767 | expect_prompt (); |
| 1768 | |
| 1769 | #if 0 |
| 1770 | /* Replace the insn under the break */ |
| 1771 | e7000_write_inferior_memory (addr, shadow, 2); |
| 1772 | #endif |
| 1773 | #endif |
| 1774 | |
| 1775 | return 0; |
| 1776 | } |
| 1777 | |
| 1778 | warning ("Can't find breakpoint associated with 0x%lx\n", addr); |
| 1779 | return 1; |
| 1780 | } |
| 1781 | |
| 1782 | /* Put a command string, in args, out to STDBUG. Output from STDBUG |
| 1783 | is placed on the users terminal until the prompt is seen. */ |
| 1784 | |
| 1785 | static void |
| 1786 | e7000_command (char *args, int fromtty) |
| 1787 | { |
| 1788 | /* FIXME: arbitrary limit on length of args. */ |
| 1789 | char buf[200]; |
| 1790 | |
| 1791 | echo = 0; |
| 1792 | |
| 1793 | if (!e7000_desc) |
| 1794 | error ("e7000 target not open."); |
| 1795 | if (!args) |
| 1796 | { |
| 1797 | puts_e7000debug ("\r"); |
| 1798 | } |
| 1799 | else |
| 1800 | { |
| 1801 | sprintf (buf, "%s\r", args); |
| 1802 | puts_e7000debug (buf); |
| 1803 | } |
| 1804 | |
| 1805 | echo++; |
| 1806 | ctrl_c = 2; |
| 1807 | expect_full_prompt (); |
| 1808 | echo--; |
| 1809 | ctrl_c = 0; |
| 1810 | printf_unfiltered ("\n"); |
| 1811 | |
| 1812 | /* Who knows what the command did... */ |
| 1813 | registers_changed (); |
| 1814 | } |
| 1815 | |
| 1816 | |
| 1817 | static void |
| 1818 | e7000_drain_command (char *args, int fromtty) |
| 1819 | { |
| 1820 | int c; |
| 1821 | |
| 1822 | puts_e7000debug ("end\r"); |
| 1823 | putchar_e7000 (CTRLC); |
| 1824 | |
| 1825 | while ((c = readchar (1) != -1)) |
| 1826 | { |
| 1827 | if (quit_flag) |
| 1828 | { |
| 1829 | putchar_e7000 (CTRLC); |
| 1830 | quit_flag = 0; |
| 1831 | } |
| 1832 | if (c > ' ' && c < 127) |
| 1833 | printf_unfiltered ("%c", c & 0xff); |
| 1834 | else |
| 1835 | printf_unfiltered ("<%x>", c & 0xff); |
| 1836 | } |
| 1837 | } |
| 1838 | |
| 1839 | #define NITEMS 7 |
| 1840 | |
| 1841 | static int |
| 1842 | why_stop (void) |
| 1843 | { |
| 1844 | static char *strings[NITEMS] = |
| 1845 | { |
| 1846 | "STEP NORMAL", |
| 1847 | "BREAK POINT", |
| 1848 | "BREAK KEY", |
| 1849 | "BREAK CONDI", |
| 1850 | "CYCLE ACCESS", |
| 1851 | "ILLEGAL INSTRUCTION", |
| 1852 | "WRITE PROTECT", |
| 1853 | }; |
| 1854 | char *p[NITEMS]; |
| 1855 | int c; |
| 1856 | int i; |
| 1857 | |
| 1858 | for (i = 0; i < NITEMS; ++i) |
| 1859 | p[i] = strings[i]; |
| 1860 | |
| 1861 | c = gch (); |
| 1862 | while (1) |
| 1863 | { |
| 1864 | for (i = 0; i < NITEMS; i++) |
| 1865 | { |
| 1866 | if (c == *(p[i])) |
| 1867 | { |
| 1868 | p[i]++; |
| 1869 | if (*(p[i]) == 0) |
| 1870 | { |
| 1871 | /* found one of the choices */ |
| 1872 | return i; |
| 1873 | } |
| 1874 | } |
| 1875 | else |
| 1876 | p[i] = strings[i]; |
| 1877 | } |
| 1878 | |
| 1879 | c = gch (); |
| 1880 | } |
| 1881 | } |
| 1882 | |
| 1883 | /* Suck characters, if a string match, then return the strings index |
| 1884 | otherwise echo them. */ |
| 1885 | |
| 1886 | int |
| 1887 | expect_n (char **strings) |
| 1888 | { |
| 1889 | char *(ptr[10]); |
| 1890 | int n; |
| 1891 | int c; |
| 1892 | char saveaway[100]; |
| 1893 | char *buffer = saveaway; |
| 1894 | /* Count number of expect strings */ |
| 1895 | |
| 1896 | for (n = 0; strings[n]; n++) |
| 1897 | { |
| 1898 | ptr[n] = strings[n]; |
| 1899 | } |
| 1900 | |
| 1901 | while (1) |
| 1902 | { |
| 1903 | int i; |
| 1904 | int gotone = 0; |
| 1905 | |
| 1906 | c = readchar (1); |
| 1907 | if (c == -1) |
| 1908 | { |
| 1909 | printf_unfiltered ("[waiting for e7000...]\n"); |
| 1910 | } |
| 1911 | #ifdef __GO32__ |
| 1912 | if (kbhit ()) |
| 1913 | { |
| 1914 | int k = getkey (); |
| 1915 | |
| 1916 | if (k == 1) |
| 1917 | quit_flag = 1; |
| 1918 | } |
| 1919 | #endif |
| 1920 | if (quit_flag) |
| 1921 | { |
| 1922 | putchar_e7000 (CTRLC); /* interrupt the running program */ |
| 1923 | quit_flag = 0; |
| 1924 | } |
| 1925 | |
| 1926 | for (i = 0; i < n; i++) |
| 1927 | { |
| 1928 | if (c == ptr[i][0]) |
| 1929 | { |
| 1930 | ptr[i]++; |
| 1931 | if (ptr[i][0] == 0) |
| 1932 | { |
| 1933 | /* Gone all the way */ |
| 1934 | return i; |
| 1935 | } |
| 1936 | gotone = 1; |
| 1937 | } |
| 1938 | else |
| 1939 | { |
| 1940 | ptr[i] = strings[i]; |
| 1941 | } |
| 1942 | } |
| 1943 | |
| 1944 | if (gotone) |
| 1945 | { |
| 1946 | /* Save it up incase we find that there was no match */ |
| 1947 | *buffer++ = c; |
| 1948 | } |
| 1949 | else |
| 1950 | { |
| 1951 | if (buffer != saveaway) |
| 1952 | { |
| 1953 | *buffer++ = 0; |
| 1954 | printf_unfiltered ("%s", buffer); |
| 1955 | buffer = saveaway; |
| 1956 | } |
| 1957 | if (c != -1) |
| 1958 | { |
| 1959 | putchar_unfiltered (c); |
| 1960 | gdb_flush (gdb_stdout); |
| 1961 | } |
| 1962 | } |
| 1963 | } |
| 1964 | } |
| 1965 | |
| 1966 | /* We subtract two from the pc here rather than use |
| 1967 | DECR_PC_AFTER_BREAK since the e7000 doesn't always add two to the |
| 1968 | pc, and the simulators never do. */ |
| 1969 | |
| 1970 | static void |
| 1971 | sub2_from_pc (void) |
| 1972 | { |
| 1973 | char buf[4]; |
| 1974 | char buf2[200]; |
| 1975 | |
| 1976 | store_signed_integer (buf, |
| 1977 | REGISTER_RAW_SIZE (PC_REGNUM), |
| 1978 | read_register (PC_REGNUM) - 2); |
| 1979 | supply_register (PC_REGNUM, buf); |
| 1980 | sprintf (buf2, ".PC %lx\r", read_register (PC_REGNUM)); |
| 1981 | puts_e7000debug (buf2); |
| 1982 | } |
| 1983 | |
| 1984 | #define WAS_SLEEP 0 |
| 1985 | #define WAS_INT 1 |
| 1986 | #define WAS_RUNNING 2 |
| 1987 | #define WAS_OTHER 3 |
| 1988 | |
| 1989 | static char *estrings[] = |
| 1990 | { |
| 1991 | "** SLEEP", |
| 1992 | "BREAK !", |
| 1993 | "** PC", |
| 1994 | "PC", |
| 1995 | NULL |
| 1996 | }; |
| 1997 | |
| 1998 | /* Wait until the remote machine stops, then return, storing status in |
| 1999 | STATUS just as `wait' would. */ |
| 2000 | |
| 2001 | static int |
| 2002 | e7000_wait (int pid, struct target_waitstatus *status) |
| 2003 | { |
| 2004 | int stop_reason; |
| 2005 | int regno; |
| 2006 | int running_count = 0; |
| 2007 | int had_sleep = 0; |
| 2008 | int loop = 1; |
| 2009 | char *wanted_nopc; |
| 2010 | |
| 2011 | /* Then echo chars until PC= string seen */ |
| 2012 | gch (); /* Drop cr */ |
| 2013 | gch (); /* and space */ |
| 2014 | |
| 2015 | while (loop) |
| 2016 | { |
| 2017 | switch (expect_n (estrings)) |
| 2018 | { |
| 2019 | case WAS_OTHER: |
| 2020 | /* how did this happen ? */ |
| 2021 | loop = 0; |
| 2022 | break; |
| 2023 | case WAS_SLEEP: |
| 2024 | had_sleep = 1; |
| 2025 | putchar_e7000 (CTRLC); |
| 2026 | loop = 0; |
| 2027 | break; |
| 2028 | case WAS_INT: |
| 2029 | loop = 0; |
| 2030 | break; |
| 2031 | case WAS_RUNNING: |
| 2032 | running_count++; |
| 2033 | if (running_count == 20) |
| 2034 | { |
| 2035 | printf_unfiltered ("[running...]\n"); |
| 2036 | running_count = 0; |
| 2037 | } |
| 2038 | break; |
| 2039 | default: |
| 2040 | /* error? */ |
| 2041 | break; |
| 2042 | } |
| 2043 | } |
| 2044 | |
| 2045 | /* Skip till the PC= */ |
| 2046 | expect ("="); |
| 2047 | |
| 2048 | if (TARGET_ARCHITECTURE->arch == bfd_arch_sh) |
| 2049 | { |
| 2050 | wanted_nopc = want_nopc_sh; |
| 2051 | switch (TARGET_ARCHITECTURE->mach) |
| 2052 | { |
| 2053 | case bfd_mach_sh3: |
| 2054 | case bfd_mach_sh3e: |
| 2055 | case bfd_mach_sh4: |
| 2056 | wanted_nopc = want_nopc_sh3; |
| 2057 | } |
| 2058 | } |
| 2059 | #ifdef GDB_TARGET_IS_H8300 |
| 2060 | if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300) |
| 2061 | { |
| 2062 | if (h8300smode) |
| 2063 | wanted_nopc = want_nopc_h8300s; |
| 2064 | else |
| 2065 | wanted_nopc = want_nopc_h8300h; |
| 2066 | } |
| 2067 | #endif |
| 2068 | fetch_regs_from_dump (gch, wanted_nopc); |
| 2069 | |
| 2070 | /* And supply the extra ones the simulator uses */ |
| 2071 | for (regno = NUM_REALREGS; regno < NUM_REGS; regno++) |
| 2072 | { |
| 2073 | int buf = 0; |
| 2074 | supply_register (regno, (char *) &buf); |
| 2075 | } |
| 2076 | |
| 2077 | stop_reason = why_stop (); |
| 2078 | expect_full_prompt (); |
| 2079 | |
| 2080 | status->kind = TARGET_WAITKIND_STOPPED; |
| 2081 | status->value.sig = TARGET_SIGNAL_TRAP; |
| 2082 | |
| 2083 | switch (stop_reason) |
| 2084 | { |
| 2085 | case 1: /* Breakpoint */ |
| 2086 | write_pc (read_pc ()); /* PC is always off by 2 for breakpoints */ |
| 2087 | status->value.sig = TARGET_SIGNAL_TRAP; |
| 2088 | break; |
| 2089 | case 0: /* Single step */ |
| 2090 | status->value.sig = TARGET_SIGNAL_TRAP; |
| 2091 | break; |
| 2092 | case 2: /* Interrupt */ |
| 2093 | if (had_sleep) |
| 2094 | { |
| 2095 | status->value.sig = TARGET_SIGNAL_TRAP; |
| 2096 | sub2_from_pc (); |
| 2097 | } |
| 2098 | else |
| 2099 | { |
| 2100 | status->value.sig = TARGET_SIGNAL_INT; |
| 2101 | } |
| 2102 | break; |
| 2103 | case 3: |
| 2104 | break; |
| 2105 | case 4: |
| 2106 | printf_unfiltered ("a cycle address error?\n"); |
| 2107 | status->value.sig = TARGET_SIGNAL_UNKNOWN; |
| 2108 | break; |
| 2109 | case 5: |
| 2110 | status->value.sig = TARGET_SIGNAL_ILL; |
| 2111 | break; |
| 2112 | case 6: |
| 2113 | status->value.sig = TARGET_SIGNAL_SEGV; |
| 2114 | break; |
| 2115 | case 7: /* Anything else (NITEMS + 1) */ |
| 2116 | printf_unfiltered ("a write protect error?\n"); |
| 2117 | status->value.sig = TARGET_SIGNAL_UNKNOWN; |
| 2118 | break; |
| 2119 | default: |
| 2120 | /* Get the user's attention - this should never happen. */ |
| 2121 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
| 2122 | } |
| 2123 | |
| 2124 | return 0; |
| 2125 | } |
| 2126 | |
| 2127 | /* Stop the running program. */ |
| 2128 | |
| 2129 | static void |
| 2130 | e7000_stop (void) |
| 2131 | { |
| 2132 | /* Sending a ^C is supposed to stop the running program. */ |
| 2133 | putchar_e7000 (CTRLC); |
| 2134 | } |
| 2135 | |
| 2136 | /* Define the target subroutine names. */ |
| 2137 | |
| 2138 | struct target_ops e7000_ops; |
| 2139 | |
| 2140 | static void |
| 2141 | init_e7000_ops (void) |
| 2142 | { |
| 2143 | e7000_ops.to_shortname = "e7000"; |
| 2144 | e7000_ops.to_longname = "Remote Hitachi e7000 target"; |
| 2145 | e7000_ops.to_doc = "Use a remote Hitachi e7000 ICE connected by a serial line;\n\ |
| 2146 | or a network connection.\n\ |
| 2147 | Arguments are the name of the device for the serial line,\n\ |
| 2148 | the speed to connect at in bits per second.\n\ |
| 2149 | eg\n\ |
| 2150 | target e7000 /dev/ttya 9600\n\ |
| 2151 | target e7000 foobar"; |
| 2152 | e7000_ops.to_open = e7000_open; |
| 2153 | e7000_ops.to_close = e7000_close; |
| 2154 | e7000_ops.to_attach = 0; |
| 2155 | e7000_ops.to_post_attach = NULL; |
| 2156 | e7000_ops.to_require_attach = NULL; |
| 2157 | e7000_ops.to_detach = e7000_detach; |
| 2158 | e7000_ops.to_require_detach = NULL; |
| 2159 | e7000_ops.to_resume = e7000_resume; |
| 2160 | e7000_ops.to_wait = e7000_wait; |
| 2161 | e7000_ops.to_post_wait = NULL; |
| 2162 | e7000_ops.to_fetch_registers = e7000_fetch_register; |
| 2163 | e7000_ops.to_store_registers = e7000_store_register; |
| 2164 | e7000_ops.to_prepare_to_store = e7000_prepare_to_store; |
| 2165 | e7000_ops.to_xfer_memory = e7000_xfer_inferior_memory; |
| 2166 | e7000_ops.to_files_info = e7000_files_info; |
| 2167 | e7000_ops.to_insert_breakpoint = e7000_insert_breakpoint; |
| 2168 | e7000_ops.to_remove_breakpoint = e7000_remove_breakpoint; |
| 2169 | e7000_ops.to_terminal_init = 0; |
| 2170 | e7000_ops.to_terminal_inferior = 0; |
| 2171 | e7000_ops.to_terminal_ours_for_output = 0; |
| 2172 | e7000_ops.to_terminal_ours = 0; |
| 2173 | e7000_ops.to_terminal_info = 0; |
| 2174 | e7000_ops.to_kill = e7000_kill; |
| 2175 | e7000_ops.to_load = e7000_load; |
| 2176 | e7000_ops.to_lookup_symbol = 0; |
| 2177 | e7000_ops.to_create_inferior = e7000_create_inferior; |
| 2178 | e7000_ops.to_post_startup_inferior = NULL; |
| 2179 | e7000_ops.to_acknowledge_created_inferior = NULL; |
| 2180 | e7000_ops.to_clone_and_follow_inferior = NULL; |
| 2181 | e7000_ops.to_post_follow_inferior_by_clone = NULL; |
| 2182 | e7000_ops.to_insert_fork_catchpoint = NULL; |
| 2183 | e7000_ops.to_remove_fork_catchpoint = NULL; |
| 2184 | e7000_ops.to_insert_vfork_catchpoint = NULL; |
| 2185 | e7000_ops.to_remove_vfork_catchpoint = NULL; |
| 2186 | e7000_ops.to_has_forked = NULL; |
| 2187 | e7000_ops.to_has_vforked = NULL; |
| 2188 | e7000_ops.to_can_follow_vfork_prior_to_exec = NULL; |
| 2189 | e7000_ops.to_post_follow_vfork = NULL; |
| 2190 | e7000_ops.to_insert_exec_catchpoint = NULL; |
| 2191 | e7000_ops.to_remove_exec_catchpoint = NULL; |
| 2192 | e7000_ops.to_has_execd = NULL; |
| 2193 | e7000_ops.to_reported_exec_events_per_exec_call = NULL; |
| 2194 | e7000_ops.to_has_exited = NULL; |
| 2195 | e7000_ops.to_mourn_inferior = e7000_mourn_inferior; |
| 2196 | e7000_ops.to_can_run = 0; |
| 2197 | e7000_ops.to_notice_signals = 0; |
| 2198 | e7000_ops.to_thread_alive = 0; |
| 2199 | e7000_ops.to_stop = e7000_stop; |
| 2200 | e7000_ops.to_pid_to_exec_file = NULL; |
| 2201 | e7000_ops.to_core_file_to_sym_file = NULL; |
| 2202 | e7000_ops.to_stratum = process_stratum; |
| 2203 | e7000_ops.DONT_USE = 0; |
| 2204 | e7000_ops.to_has_all_memory = 1; |
| 2205 | e7000_ops.to_has_memory = 1; |
| 2206 | e7000_ops.to_has_stack = 1; |
| 2207 | e7000_ops.to_has_registers = 1; |
| 2208 | e7000_ops.to_has_execution = 1; |
| 2209 | e7000_ops.to_sections = 0; |
| 2210 | e7000_ops.to_sections_end = 0; |
| 2211 | e7000_ops.to_magic = OPS_MAGIC; |
| 2212 | }; |
| 2213 | |
| 2214 | void |
| 2215 | _initialize_remote_e7000 (void) |
| 2216 | { |
| 2217 | init_e7000_ops (); |
| 2218 | add_target (&e7000_ops); |
| 2219 | |
| 2220 | add_com ("e7000", class_obscure, e7000_command, |
| 2221 | "Send a command to the e7000 monitor."); |
| 2222 | |
| 2223 | add_com ("ftplogin", class_obscure, e7000_login_command, |
| 2224 | "Login to machine and change to directory."); |
| 2225 | |
| 2226 | add_com ("ftpload", class_obscure, e7000_ftp_command, |
| 2227 | "Fetch and load a file from previously described place."); |
| 2228 | |
| 2229 | add_com ("drain", class_obscure, e7000_drain_command, |
| 2230 | "Drain pending e7000 text buffers."); |
| 2231 | |
| 2232 | add_show_from_set (add_set_cmd ("usehardbreakpoints", no_class, |
| 2233 | var_integer, (char *) &use_hard_breakpoints, |
| 2234 | "Set use of hardware breakpoints for all breakpoints.\n", &setlist), |
| 2235 | &showlist); |
| 2236 | } |