| 1 | /* Remote debugging interface for Renesas E7000 ICE, for GDB |
| 2 | |
| 3 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
| 4 | 2002, 2003, 2004 Free Software Foundation, Inc. |
| 5 | |
| 6 | Contributed by Cygnus Support. |
| 7 | |
| 8 | Written by Steve Chamberlain for Cygnus Support. |
| 9 | |
| 10 | This file is part of GDB. |
| 11 | |
| 12 | This program is free software; you can redistribute it and/or modify |
| 13 | it under the terms of the GNU General Public License as published by |
| 14 | the Free Software Foundation; either version 2 of the License, or |
| 15 | (at your option) any later version. |
| 16 | |
| 17 | This program is distributed in the hope that it will be useful, |
| 18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | GNU General Public License for more details. |
| 21 | |
| 22 | You should have received a copy of the GNU General Public License |
| 23 | along with this program; if not, write to the Free Software |
| 24 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 25 | Boston, MA 02111-1307, USA. */ |
| 26 | |
| 27 | /* The E7000 is an in-circuit emulator for the Renesas H8/300-H and |
| 28 | Renesas-SH processor. It has serial port and a lan port. |
| 29 | |
| 30 | The monitor command set makes it difficult to load large ammounts of |
| 31 | data over the lan without using ftp - so try not to issue load |
| 32 | commands when communicating over ethernet; use the ftpload command. |
| 33 | |
| 34 | The monitor pauses for a second when dumping srecords to the serial |
| 35 | line too, so we use a slower per byte mechanism but without the |
| 36 | startup overhead. Even so, it's pretty slow... */ |
| 37 | |
| 38 | #include "defs.h" |
| 39 | #include "gdbcore.h" |
| 40 | #include "gdbarch.h" |
| 41 | #include "inferior.h" |
| 42 | #include "target.h" |
| 43 | #include "value.h" |
| 44 | #include "command.h" |
| 45 | #include "gdb_string.h" |
| 46 | #include "gdbcmd.h" |
| 47 | #include <sys/types.h> |
| 48 | #include "serial.h" |
| 49 | #include "remote-utils.h" |
| 50 | #include "symfile.h" |
| 51 | #include "regcache.h" |
| 52 | #include <time.h> |
| 53 | #include <ctype.h> |
| 54 | |
| 55 | |
| 56 | #if 1 |
| 57 | #define HARD_BREAKPOINTS /* Now handled by set option. */ |
| 58 | #define BC_BREAKPOINTS use_hard_breakpoints |
| 59 | #endif |
| 60 | |
| 61 | #define CTRLC 0x03 |
| 62 | #define ENQ 0x05 |
| 63 | #define ACK 0x06 |
| 64 | #define CTRLZ 0x1a |
| 65 | |
| 66 | /* This file is used by 2 different targets, sh-elf and h8300. The |
| 67 | h8300 is not multiarched and doesn't use the registers defined in |
| 68 | tm-sh.h. To avoid using a macro GDB_TARGET_IS_SH, we do runtime check |
| 69 | of the target, which requires that these namse below are always |
| 70 | defined also in the h8300 case. */ |
| 71 | |
| 72 | #if !defined (PR_REGNUM) |
| 73 | #define PR_REGNUM -1 |
| 74 | #endif |
| 75 | #if !defined (GBR_REGNUM) |
| 76 | #define GBR_REGNUM -1 |
| 77 | #endif |
| 78 | #if !defined (VBR_REGNUM) |
| 79 | #define VBR_REGNUM -1 |
| 80 | #endif |
| 81 | #if !defined (MACH_REGNUM) |
| 82 | #define MACH_REGNUM -1 |
| 83 | #endif |
| 84 | #if !defined (MACL_REGNUM) |
| 85 | #define MACL_REGNUM -1 |
| 86 | #endif |
| 87 | #if !defined (SR_REGNUM) |
| 88 | #define SR_REGNUM -1 |
| 89 | #endif |
| 90 | |
| 91 | extern void report_transfer_performance (unsigned long, time_t, time_t); |
| 92 | |
| 93 | extern char *sh_processor_type; |
| 94 | |
| 95 | /* Local function declarations. */ |
| 96 | |
| 97 | static void e7000_close (int); |
| 98 | |
| 99 | static void e7000_fetch_register (int); |
| 100 | |
| 101 | static void e7000_store_register (int); |
| 102 | |
| 103 | static void e7000_command (char *, int); |
| 104 | |
| 105 | static void e7000_login_command (char *, int); |
| 106 | |
| 107 | static void e7000_ftp_command (char *, int); |
| 108 | |
| 109 | static void e7000_drain_command (char *, int); |
| 110 | |
| 111 | static void expect (char *); |
| 112 | |
| 113 | static void expect_full_prompt (void); |
| 114 | |
| 115 | static void expect_prompt (void); |
| 116 | |
| 117 | static int e7000_parse_device (char *args, char *dev_name, int baudrate); |
| 118 | /* Variables. */ |
| 119 | |
| 120 | static struct serial *e7000_desc; |
| 121 | |
| 122 | /* Allow user to chose between using hardware breakpoints or memory. */ |
| 123 | static int use_hard_breakpoints = 0; /* use sw breakpoints by default */ |
| 124 | |
| 125 | /* Nonzero if using the tcp serial driver. */ |
| 126 | |
| 127 | static int using_tcp; /* direct tcp connection to target */ |
| 128 | static int using_tcp_remote; /* indirect connection to target |
| 129 | via tcp to controller */ |
| 130 | |
| 131 | /* Nonzero if using the pc isa card. */ |
| 132 | |
| 133 | static int using_pc; |
| 134 | |
| 135 | extern struct target_ops e7000_ops; /* Forward declaration */ |
| 136 | |
| 137 | char *ENQSTRING = "\005"; |
| 138 | |
| 139 | /* Nonzero if some routine (as opposed to the user) wants echoing. |
| 140 | FIXME: Do this reentrantly with an extra parameter. */ |
| 141 | |
| 142 | static int echo; |
| 143 | |
| 144 | static int ctrl_c; |
| 145 | |
| 146 | static int timeout = 20; |
| 147 | |
| 148 | /* Send data to e7000debug. */ |
| 149 | |
| 150 | static void |
| 151 | puts_e7000debug (char *buf) |
| 152 | { |
| 153 | if (!e7000_desc) |
| 154 | error ("Use \"target e7000 ...\" first."); |
| 155 | |
| 156 | if (remote_debug) |
| 157 | printf_unfiltered ("Sending %s\n", buf); |
| 158 | |
| 159 | if (serial_write (e7000_desc, buf, strlen (buf))) |
| 160 | fprintf_unfiltered (gdb_stderr, "serial_write failed: %s\n", safe_strerror (errno)); |
| 161 | |
| 162 | /* And expect to see it echoed, unless using the pc interface */ |
| 163 | #if 0 |
| 164 | if (!using_pc) |
| 165 | #endif |
| 166 | expect (buf); |
| 167 | } |
| 168 | |
| 169 | static void |
| 170 | putchar_e7000 (int x) |
| 171 | { |
| 172 | char b[1]; |
| 173 | |
| 174 | b[0] = x; |
| 175 | serial_write (e7000_desc, b, 1); |
| 176 | } |
| 177 | |
| 178 | static void |
| 179 | write_e7000 (char *s) |
| 180 | { |
| 181 | serial_write (e7000_desc, s, strlen (s)); |
| 182 | } |
| 183 | |
| 184 | static int |
| 185 | normal (int x) |
| 186 | { |
| 187 | if (x == '\n') |
| 188 | return '\r'; |
| 189 | return x; |
| 190 | } |
| 191 | |
| 192 | /* Read a character from the remote system, doing all the fancy timeout |
| 193 | stuff. Handles serial errors and EOF. If TIMEOUT == 0, and no chars, |
| 194 | returns -1, else returns next char. Discards chars > 127. */ |
| 195 | |
| 196 | static int |
| 197 | readchar (int timeout) |
| 198 | { |
| 199 | int c; |
| 200 | |
| 201 | do |
| 202 | { |
| 203 | c = serial_readchar (e7000_desc, timeout); |
| 204 | } |
| 205 | while (c > 127); |
| 206 | |
| 207 | if (c == SERIAL_TIMEOUT) |
| 208 | { |
| 209 | if (timeout == 0) |
| 210 | return -1; |
| 211 | echo = 0; |
| 212 | error ("Timeout reading from remote system."); |
| 213 | } |
| 214 | else if (c < 0) |
| 215 | error ("Serial communication error"); |
| 216 | |
| 217 | if (remote_debug) |
| 218 | { |
| 219 | putchar_unfiltered (c); |
| 220 | gdb_flush (gdb_stdout); |
| 221 | } |
| 222 | |
| 223 | return normal (c); |
| 224 | } |
| 225 | |
| 226 | #if 0 |
| 227 | char * |
| 228 | tl (int x) |
| 229 | { |
| 230 | static char b[8][10]; |
| 231 | static int p; |
| 232 | |
| 233 | p++; |
| 234 | p &= 7; |
| 235 | if (x >= ' ') |
| 236 | { |
| 237 | b[p][0] = x; |
| 238 | b[p][1] = 0; |
| 239 | } |
| 240 | else |
| 241 | { |
| 242 | sprintf (b[p], "<%d>", x); |
| 243 | } |
| 244 | |
| 245 | return b[p]; |
| 246 | } |
| 247 | #endif |
| 248 | |
| 249 | /* Scan input from the remote system, until STRING is found. If |
| 250 | DISCARD is non-zero, then discard non-matching input, else print it |
| 251 | out. Let the user break out immediately. */ |
| 252 | |
| 253 | static void |
| 254 | expect (char *string) |
| 255 | { |
| 256 | char *p = string; |
| 257 | int c; |
| 258 | int nl = 0; |
| 259 | |
| 260 | while (1) |
| 261 | { |
| 262 | c = readchar (timeout); |
| 263 | |
| 264 | if (echo) |
| 265 | { |
| 266 | if (c == '\r' || c == '\n') |
| 267 | { |
| 268 | if (!nl) |
| 269 | putchar_unfiltered ('\n'); |
| 270 | nl = 1; |
| 271 | } |
| 272 | else |
| 273 | { |
| 274 | nl = 0; |
| 275 | putchar_unfiltered (c); |
| 276 | } |
| 277 | gdb_flush (gdb_stdout); |
| 278 | } |
| 279 | if (normal (c) == normal (*p++)) |
| 280 | { |
| 281 | if (*p == '\0') |
| 282 | return; |
| 283 | } |
| 284 | else |
| 285 | { |
| 286 | p = string; |
| 287 | |
| 288 | if (normal (c) == normal (string[0])) |
| 289 | p++; |
| 290 | } |
| 291 | } |
| 292 | } |
| 293 | |
| 294 | /* Keep discarding input until we see the e7000 prompt. |
| 295 | |
| 296 | The convention for dealing with the prompt is that you |
| 297 | o give your command |
| 298 | o *then* wait for the prompt. |
| 299 | |
| 300 | Thus the last thing that a procedure does with the serial line will |
| 301 | be an expect_prompt(). Exception: e7000_resume does not wait for |
| 302 | the prompt, because the terminal is being handed over to the |
| 303 | inferior. However, the next thing which happens after that is a |
| 304 | e7000_wait which does wait for the prompt. Note that this includes |
| 305 | abnormal exit, e.g. error(). This is necessary to prevent getting |
| 306 | into states from which we can't recover. */ |
| 307 | |
| 308 | static void |
| 309 | expect_prompt (void) |
| 310 | { |
| 311 | expect (":"); |
| 312 | } |
| 313 | |
| 314 | static void |
| 315 | expect_full_prompt (void) |
| 316 | { |
| 317 | expect ("\r:"); |
| 318 | } |
| 319 | |
| 320 | static int |
| 321 | convert_hex_digit (int ch) |
| 322 | { |
| 323 | if (ch >= '0' && ch <= '9') |
| 324 | return ch - '0'; |
| 325 | else if (ch >= 'A' && ch <= 'F') |
| 326 | return ch - 'A' + 10; |
| 327 | else if (ch >= 'a' && ch <= 'f') |
| 328 | return ch - 'a' + 10; |
| 329 | return -1; |
| 330 | } |
| 331 | |
| 332 | static int |
| 333 | get_hex (int *start) |
| 334 | { |
| 335 | int value = convert_hex_digit (*start); |
| 336 | int try; |
| 337 | |
| 338 | *start = readchar (timeout); |
| 339 | while ((try = convert_hex_digit (*start)) >= 0) |
| 340 | { |
| 341 | value <<= 4; |
| 342 | value += try; |
| 343 | *start = readchar (timeout); |
| 344 | } |
| 345 | return value; |
| 346 | } |
| 347 | |
| 348 | #if 0 |
| 349 | /* Get N 32-bit words from remote, each preceded by a space, and put |
| 350 | them in registers starting at REGNO. */ |
| 351 | |
| 352 | static void |
| 353 | get_hex_regs (int n, int regno) |
| 354 | { |
| 355 | long val; |
| 356 | int i; |
| 357 | |
| 358 | for (i = 0; i < n; i++) |
| 359 | { |
| 360 | int j; |
| 361 | |
| 362 | val = 0; |
| 363 | for (j = 0; j < 8; j++) |
| 364 | val = (val << 4) + get_hex_digit (j == 0); |
| 365 | regcache_raw_supply (current_regcache, regno++, (char *) &val); |
| 366 | } |
| 367 | } |
| 368 | #endif |
| 369 | |
| 370 | /* This is called not only when we first attach, but also when the |
| 371 | user types "run" after having attached. */ |
| 372 | |
| 373 | static void |
| 374 | e7000_create_inferior (char *execfile, char *args, char **env, |
| 375 | int from_tty) |
| 376 | { |
| 377 | int entry_pt; |
| 378 | |
| 379 | if (args && *args) |
| 380 | error ("Can't pass arguments to remote E7000DEBUG process"); |
| 381 | |
| 382 | if (execfile == 0 || exec_bfd == 0) |
| 383 | error ("No executable file specified"); |
| 384 | |
| 385 | entry_pt = (int) bfd_get_start_address (exec_bfd); |
| 386 | |
| 387 | #ifdef CREATE_INFERIOR_HOOK |
| 388 | CREATE_INFERIOR_HOOK (0); /* No process-ID */ |
| 389 | #endif |
| 390 | |
| 391 | /* The "process" (board) is already stopped awaiting our commands, and |
| 392 | the program is already downloaded. We just set its PC and go. */ |
| 393 | |
| 394 | clear_proceed_status (); |
| 395 | |
| 396 | /* Tell wait_for_inferior that we've started a new process. */ |
| 397 | init_wait_for_inferior (); |
| 398 | |
| 399 | /* Set up the "saved terminal modes" of the inferior |
| 400 | based on what modes we are starting it with. */ |
| 401 | target_terminal_init (); |
| 402 | |
| 403 | /* Install inferior's terminal modes. */ |
| 404 | target_terminal_inferior (); |
| 405 | |
| 406 | /* insert_step_breakpoint (); FIXME, do we need this? */ |
| 407 | proceed ((CORE_ADDR) entry_pt, -1, 0); /* Let 'er rip... */ |
| 408 | } |
| 409 | |
| 410 | /* Open a connection to a remote debugger. NAME is the filename used |
| 411 | for communication. */ |
| 412 | |
| 413 | static int baudrate = 9600; |
| 414 | static char dev_name[100]; |
| 415 | |
| 416 | static char *machine = ""; |
| 417 | static char *user = ""; |
| 418 | static char *passwd = ""; |
| 419 | static char *dir = ""; |
| 420 | |
| 421 | /* Grab the next token and buy some space for it */ |
| 422 | |
| 423 | static char * |
| 424 | next (char **ptr) |
| 425 | { |
| 426 | char *p = *ptr; |
| 427 | char *s; |
| 428 | char *r; |
| 429 | int l = 0; |
| 430 | |
| 431 | while (*p && *p == ' ') |
| 432 | p++; |
| 433 | s = p; |
| 434 | while (*p && (*p != ' ' && *p != '\t')) |
| 435 | { |
| 436 | l++; |
| 437 | p++; |
| 438 | } |
| 439 | r = xmalloc (l + 1); |
| 440 | memcpy (r, s, l); |
| 441 | r[l] = 0; |
| 442 | *ptr = p; |
| 443 | return r; |
| 444 | } |
| 445 | |
| 446 | static void |
| 447 | e7000_login_command (char *args, int from_tty) |
| 448 | { |
| 449 | if (args) |
| 450 | { |
| 451 | machine = next (&args); |
| 452 | user = next (&args); |
| 453 | passwd = next (&args); |
| 454 | dir = next (&args); |
| 455 | if (from_tty) |
| 456 | { |
| 457 | printf_unfiltered ("Set info to %s %s %s %s\n", machine, user, passwd, dir); |
| 458 | } |
| 459 | } |
| 460 | else |
| 461 | { |
| 462 | error ("Syntax is ftplogin <machine> <user> <passwd> <directory>"); |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | /* Start an ftp transfer from the E7000 to a host */ |
| 467 | |
| 468 | static void |
| 469 | e7000_ftp_command (char *args, int from_tty) |
| 470 | { |
| 471 | /* FIXME: arbitrary limit on machine names and such. */ |
| 472 | char buf[200]; |
| 473 | |
| 474 | int oldtimeout = timeout; |
| 475 | timeout = remote_timeout; |
| 476 | |
| 477 | sprintf (buf, "ftp %s\r", machine); |
| 478 | puts_e7000debug (buf); |
| 479 | expect (" Username : "); |
| 480 | sprintf (buf, "%s\r", user); |
| 481 | puts_e7000debug (buf); |
| 482 | expect (" Password : "); |
| 483 | write_e7000 (passwd); |
| 484 | write_e7000 ("\r"); |
| 485 | expect ("success\r"); |
| 486 | expect ("FTP>"); |
| 487 | sprintf (buf, "cd %s\r", dir); |
| 488 | puts_e7000debug (buf); |
| 489 | expect ("FTP>"); |
| 490 | sprintf (buf, "ll 0;s:%s\r", args); |
| 491 | puts_e7000debug (buf); |
| 492 | expect ("FTP>"); |
| 493 | puts_e7000debug ("bye\r"); |
| 494 | expect (":"); |
| 495 | timeout = oldtimeout; |
| 496 | } |
| 497 | |
| 498 | static int |
| 499 | e7000_parse_device (char *args, char *dev_name, int baudrate) |
| 500 | { |
| 501 | char junk[128]; |
| 502 | int n = 0; |
| 503 | if (args && strcasecmp (args, "pc") == 0) |
| 504 | { |
| 505 | strcpy (dev_name, args); |
| 506 | using_pc = 1; |
| 507 | } |
| 508 | else |
| 509 | { |
| 510 | /* FIXME! temp hack to allow use with port master - |
| 511 | target tcp_remote <device> */ |
| 512 | if (args && strncmp (args, "tcp", 10) == 0) |
| 513 | { |
| 514 | char com_type[128]; |
| 515 | n = sscanf (args, " %s %s %d %s", com_type, dev_name, &baudrate, junk); |
| 516 | using_tcp_remote = 1; |
| 517 | n--; |
| 518 | } |
| 519 | else if (args) |
| 520 | { |
| 521 | n = sscanf (args, " %s %d %s", dev_name, &baudrate, junk); |
| 522 | } |
| 523 | |
| 524 | if (n != 1 && n != 2) |
| 525 | { |
| 526 | error ("Bad arguments. Usage:\ttarget e7000 <device> <speed>\n\ |
| 527 | or \t\ttarget e7000 <host>[:<port>]\n\ |
| 528 | or \t\ttarget e7000 tcp_remote <host>[:<port>]\n\ |
| 529 | or \t\ttarget e7000 pc\n"); |
| 530 | } |
| 531 | |
| 532 | #if !defined(__GO32__) && !defined(_WIN32) && !defined(__CYGWIN__) |
| 533 | /* FIXME! test for ':' is ambiguous */ |
| 534 | if (n == 1 && strchr (dev_name, ':') == 0) |
| 535 | { |
| 536 | /* Default to normal telnet port */ |
| 537 | /* serial_open will use this to determine tcp communication */ |
| 538 | strcat (dev_name, ":23"); |
| 539 | } |
| 540 | #endif |
| 541 | if (!using_tcp_remote && strchr (dev_name, ':')) |
| 542 | using_tcp = 1; |
| 543 | } |
| 544 | |
| 545 | return n; |
| 546 | } |
| 547 | |
| 548 | /* Stub for catch_errors. */ |
| 549 | |
| 550 | static int |
| 551 | e7000_start_remote (void *dummy) |
| 552 | { |
| 553 | int loop; |
| 554 | int sync; |
| 555 | int try; |
| 556 | int quit_trying; |
| 557 | |
| 558 | immediate_quit++; /* Allow user to interrupt it */ |
| 559 | |
| 560 | /* Hello? Are you there? */ |
| 561 | sync = 0; |
| 562 | loop = 0; |
| 563 | try = 0; |
| 564 | quit_trying = 20; |
| 565 | putchar_e7000 (CTRLC); |
| 566 | while (!sync && ++try <= quit_trying) |
| 567 | { |
| 568 | int c; |
| 569 | |
| 570 | printf_unfiltered ("[waiting for e7000...]\n"); |
| 571 | |
| 572 | write_e7000 ("\r"); |
| 573 | c = readchar (1); |
| 574 | |
| 575 | /* FIXME! this didn't seem right-> while (c != SERIAL_TIMEOUT) |
| 576 | * we get stuck in this loop ... |
| 577 | * We may never timeout, and never sync up :-( |
| 578 | */ |
| 579 | while (!sync && c != -1) |
| 580 | { |
| 581 | /* Dont echo cr's */ |
| 582 | if (c != '\r') |
| 583 | { |
| 584 | putchar_unfiltered (c); |
| 585 | gdb_flush (gdb_stdout); |
| 586 | } |
| 587 | /* Shouldn't we either break here, or check for sync in inner loop? */ |
| 588 | if (c == ':') |
| 589 | sync = 1; |
| 590 | |
| 591 | if (loop++ == 20) |
| 592 | { |
| 593 | putchar_e7000 (CTRLC); |
| 594 | loop = 0; |
| 595 | } |
| 596 | |
| 597 | QUIT; |
| 598 | |
| 599 | if (quit_flag) |
| 600 | { |
| 601 | putchar_e7000 (CTRLC); |
| 602 | /* Was-> quit_flag = 0; */ |
| 603 | c = -1; |
| 604 | quit_trying = try + 1; /* we don't want to try anymore */ |
| 605 | } |
| 606 | else |
| 607 | { |
| 608 | c = readchar (1); |
| 609 | } |
| 610 | } |
| 611 | } |
| 612 | |
| 613 | if (!sync) |
| 614 | { |
| 615 | fprintf_unfiltered (gdb_stderr, "Giving up after %d tries...\n", try); |
| 616 | error ("Unable to synchronize with target.\n"); |
| 617 | } |
| 618 | |
| 619 | puts_e7000debug ("\r"); |
| 620 | expect_prompt (); |
| 621 | puts_e7000debug ("b -\r"); /* Clear breakpoints */ |
| 622 | expect_prompt (); |
| 623 | |
| 624 | immediate_quit--; |
| 625 | |
| 626 | /* This is really the job of start_remote however, that makes an assumption |
| 627 | that the target is about to print out a status message of some sort. That |
| 628 | doesn't happen here. */ |
| 629 | |
| 630 | flush_cached_frames (); |
| 631 | registers_changed (); |
| 632 | stop_pc = read_pc (); |
| 633 | print_stack_frame (get_selected_frame (), 0, SRC_AND_LOC); |
| 634 | |
| 635 | return 1; |
| 636 | } |
| 637 | |
| 638 | static void |
| 639 | e7000_open (char *args, int from_tty) |
| 640 | { |
| 641 | int n; |
| 642 | |
| 643 | target_preopen (from_tty); |
| 644 | |
| 645 | n = e7000_parse_device (args, dev_name, baudrate); |
| 646 | |
| 647 | push_target (&e7000_ops); |
| 648 | |
| 649 | e7000_desc = serial_open (dev_name); |
| 650 | |
| 651 | if (!e7000_desc) |
| 652 | perror_with_name (dev_name); |
| 653 | |
| 654 | if (serial_setbaudrate (e7000_desc, baudrate)) |
| 655 | { |
| 656 | serial_close (e7000_desc); |
| 657 | perror_with_name (dev_name); |
| 658 | } |
| 659 | serial_raw (e7000_desc); |
| 660 | |
| 661 | /* Start the remote connection; if error (0), discard this target. |
| 662 | In particular, if the user quits, be sure to discard it |
| 663 | (we'd be in an inconsistent state otherwise). */ |
| 664 | if (!catch_errors (e7000_start_remote, (char *) 0, |
| 665 | "Couldn't establish connection to remote target\n", RETURN_MASK_ALL)) |
| 666 | if (from_tty) |
| 667 | printf_filtered ("Remote target %s connected to %s\n", target_shortname, |
| 668 | dev_name); |
| 669 | } |
| 670 | |
| 671 | /* Close out all files and local state before this target loses control. */ |
| 672 | |
| 673 | static void |
| 674 | e7000_close (int quitting) |
| 675 | { |
| 676 | if (e7000_desc) |
| 677 | { |
| 678 | serial_close (e7000_desc); |
| 679 | e7000_desc = 0; |
| 680 | } |
| 681 | } |
| 682 | |
| 683 | /* Terminate the open connection to the remote debugger. Use this |
| 684 | when you want to detach and do something else with your gdb. */ |
| 685 | |
| 686 | static void |
| 687 | e7000_detach (char *arg, int from_tty) |
| 688 | { |
| 689 | pop_target (); /* calls e7000_close to do the real work */ |
| 690 | if (from_tty) |
| 691 | printf_unfiltered ("Ending remote %s debugging\n", target_shortname); |
| 692 | } |
| 693 | |
| 694 | /* Tell the remote machine to resume. */ |
| 695 | |
| 696 | static void |
| 697 | e7000_resume (ptid_t ptid, int step, enum target_signal sigal) |
| 698 | { |
| 699 | if (step) |
| 700 | puts_e7000debug ("S\r"); |
| 701 | else |
| 702 | puts_e7000debug ("G\r"); |
| 703 | } |
| 704 | |
| 705 | /* Read the remote registers into the block REGS. |
| 706 | |
| 707 | For the H8/300 a register dump looks like: |
| 708 | |
| 709 | PC=00021A CCR=80:I******* |
| 710 | ER0 - ER3 0000000A 0000002E 0000002E 00000000 |
| 711 | ER4 - ER7 00000000 00000000 00000000 00FFEFF6 |
| 712 | 000218 MOV.B R1L,R2L |
| 713 | STEP NORMAL END or |
| 714 | BREAK POINT |
| 715 | */ |
| 716 | |
| 717 | char *want_h8300h = "PC=%p CCR=%c\n\ |
| 718 | ER0 - ER3 %0 %1 %2 %3\n\ |
| 719 | ER4 - ER7 %4 %5 %6 %7\n"; |
| 720 | |
| 721 | char *want_nopc_h8300h = "%p CCR=%c\n\ |
| 722 | ER0 - ER3 %0 %1 %2 %3\n\ |
| 723 | ER4 - ER7 %4 %5 %6 %7"; |
| 724 | |
| 725 | char *want_h8300s = "PC=%p CCR=%c\n\ |
| 726 | MACH=\n\ |
| 727 | ER0 - ER3 %0 %1 %2 %3\n\ |
| 728 | ER4 - ER7 %4 %5 %6 %7\n"; |
| 729 | |
| 730 | char *want_nopc_h8300s = "%p CCR=%c EXR=%9\n\ |
| 731 | ER0 - ER3 %0 %1 %2 %3\n\ |
| 732 | ER4 - ER7 %4 %5 %6 %7"; |
| 733 | |
| 734 | char *want_sh = "PC=%16 SR=%22\n\ |
| 735 | PR=%17 GBR=%18 VBR=%19\n\ |
| 736 | MACH=%20 MACL=%21\n\ |
| 737 | R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\ |
| 738 | R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n"; |
| 739 | |
| 740 | char *want_nopc_sh = "%16 SR=%22\n\ |
| 741 | PR=%17 GBR=%18 VBR=%19\n\ |
| 742 | MACH=%20 MACL=%21\n\ |
| 743 | R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\ |
| 744 | R8-15 %8 %9 %10 %11 %12 %13 %14 %15"; |
| 745 | |
| 746 | char *want_sh3 = "PC=%16 SR=%22\n\ |
| 747 | PR=%17 GBR=%18 VBR=%19\n\ |
| 748 | MACH=%20 MACL=%21 SSR=%23 SPC=%24\n\ |
| 749 | R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\ |
| 750 | R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\ |
| 751 | R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\ |
| 752 | R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\ |
| 753 | R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\ |
| 754 | R4_BANK1-R7_BANK1 %37 %38 %39 %40"; |
| 755 | |
| 756 | char *want_nopc_sh3 = "%16 SR=%22\n\ |
| 757 | PR=%17 GBR=%18 VBR=%19\n\ |
| 758 | MACH=%20 MACL=%21 SSR=%22 SPC=%23\n\ |
| 759 | R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\ |
| 760 | R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\ |
| 761 | R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\ |
| 762 | R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\ |
| 763 | R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\ |
| 764 | R4_BANK1-R7_BANK1 %37 %38 %39 %40"; |
| 765 | |
| 766 | static int |
| 767 | gch (void) |
| 768 | { |
| 769 | return readchar (timeout); |
| 770 | } |
| 771 | |
| 772 | static unsigned int |
| 773 | gbyte (void) |
| 774 | { |
| 775 | int high = convert_hex_digit (gch ()); |
| 776 | int low = convert_hex_digit (gch ()); |
| 777 | |
| 778 | return (high << 4) + low; |
| 779 | } |
| 780 | |
| 781 | static void |
| 782 | fetch_regs_from_dump (int (*nextchar) (), char *want) |
| 783 | { |
| 784 | int regno; |
| 785 | char buf[MAX_REGISTER_SIZE]; |
| 786 | |
| 787 | int thischar = nextchar (); |
| 788 | |
| 789 | if (want == NULL) |
| 790 | internal_error (__FILE__, __LINE__, "Register set not selected."); |
| 791 | |
| 792 | while (*want) |
| 793 | { |
| 794 | switch (*want) |
| 795 | { |
| 796 | case '\n': |
| 797 | /* Skip to end of line and then eat all new line type stuff */ |
| 798 | while (thischar != '\n' && thischar != '\r') |
| 799 | thischar = nextchar (); |
| 800 | while (thischar == '\n' || thischar == '\r') |
| 801 | thischar = nextchar (); |
| 802 | want++; |
| 803 | break; |
| 804 | |
| 805 | case ' ': |
| 806 | while (thischar == ' ' |
| 807 | || thischar == '\t' |
| 808 | || thischar == '\r' |
| 809 | || thischar == '\n') |
| 810 | thischar = nextchar (); |
| 811 | want++; |
| 812 | break; |
| 813 | |
| 814 | default: |
| 815 | if (*want == thischar) |
| 816 | { |
| 817 | want++; |
| 818 | if (*want) |
| 819 | thischar = nextchar (); |
| 820 | |
| 821 | } |
| 822 | else if (thischar == ' ' || thischar == '\n' || thischar == '\r') |
| 823 | { |
| 824 | thischar = nextchar (); |
| 825 | } |
| 826 | else |
| 827 | { |
| 828 | error ("out of sync in fetch registers wanted <%s>, got <%c 0x%x>", |
| 829 | want, thischar, thischar); |
| 830 | } |
| 831 | |
| 832 | break; |
| 833 | case '%': |
| 834 | /* Got a register command */ |
| 835 | want++; |
| 836 | switch (*want) |
| 837 | { |
| 838 | #ifdef PC_REGNUM |
| 839 | case 'p': |
| 840 | regno = PC_REGNUM; |
| 841 | want++; |
| 842 | break; |
| 843 | #endif |
| 844 | #ifdef CCR_REGNUM |
| 845 | case 'c': |
| 846 | regno = CCR_REGNUM; |
| 847 | want++; |
| 848 | break; |
| 849 | #endif |
| 850 | #ifdef SP_REGNUM |
| 851 | case 's': |
| 852 | regno = SP_REGNUM; |
| 853 | want++; |
| 854 | break; |
| 855 | #endif |
| 856 | #ifdef DEPRECATED_FP_REGNUM |
| 857 | case 'f': |
| 858 | regno = DEPRECATED_FP_REGNUM; |
| 859 | want++; |
| 860 | break; |
| 861 | #endif |
| 862 | |
| 863 | default: |
| 864 | if (isdigit (want[0])) |
| 865 | { |
| 866 | if (isdigit (want[1])) |
| 867 | { |
| 868 | regno = (want[0] - '0') * 10 + want[1] - '0'; |
| 869 | want += 2; |
| 870 | } |
| 871 | else |
| 872 | { |
| 873 | regno = want[0] - '0'; |
| 874 | want++; |
| 875 | } |
| 876 | } |
| 877 | |
| 878 | else |
| 879 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
| 880 | } |
| 881 | store_signed_integer (buf, |
| 882 | register_size (current_gdbarch, regno), |
| 883 | (LONGEST) get_hex (&thischar)); |
| 884 | regcache_raw_supply (current_regcache, regno, buf); |
| 885 | break; |
| 886 | } |
| 887 | } |
| 888 | } |
| 889 | |
| 890 | static void |
| 891 | e7000_fetch_registers (void) |
| 892 | { |
| 893 | int regno; |
| 894 | char *wanted = NULL; |
| 895 | |
| 896 | puts_e7000debug ("R\r"); |
| 897 | |
| 898 | if (TARGET_ARCHITECTURE->arch == bfd_arch_sh) |
| 899 | { |
| 900 | wanted = want_sh; |
| 901 | switch (TARGET_ARCHITECTURE->mach) |
| 902 | { |
| 903 | case bfd_mach_sh3: |
| 904 | case bfd_mach_sh3e: |
| 905 | case bfd_mach_sh4: |
| 906 | wanted = want_sh3; |
| 907 | } |
| 908 | } |
| 909 | if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300) |
| 910 | { |
| 911 | wanted = want_h8300h; |
| 912 | switch (TARGET_ARCHITECTURE->mach) |
| 913 | { |
| 914 | case bfd_mach_h8300s: |
| 915 | case bfd_mach_h8300sn: |
| 916 | case bfd_mach_h8300sx: |
| 917 | case bfd_mach_h8300sxn: |
| 918 | wanted = want_h8300s; |
| 919 | } |
| 920 | } |
| 921 | |
| 922 | fetch_regs_from_dump (gch, wanted); |
| 923 | |
| 924 | /* And supply the extra ones the simulator uses */ |
| 925 | for (regno = NUM_REALREGS; regno < NUM_REGS; regno++) |
| 926 | { |
| 927 | int buf = 0; |
| 928 | |
| 929 | regcache_raw_supply (current_regcache, regno, (char *) (&buf)); |
| 930 | } |
| 931 | } |
| 932 | |
| 933 | /* Fetch register REGNO, or all registers if REGNO is -1. Returns |
| 934 | errno value. */ |
| 935 | |
| 936 | static void |
| 937 | e7000_fetch_register (int regno) |
| 938 | { |
| 939 | e7000_fetch_registers (); |
| 940 | } |
| 941 | |
| 942 | /* Store the remote registers from the contents of the block REGS. */ |
| 943 | |
| 944 | static void |
| 945 | e7000_store_registers (void) |
| 946 | { |
| 947 | int regno; |
| 948 | |
| 949 | for (regno = 0; regno < NUM_REALREGS; regno++) |
| 950 | e7000_store_register (regno); |
| 951 | |
| 952 | registers_changed (); |
| 953 | } |
| 954 | |
| 955 | /* Store register REGNO, or all if REGNO == 0. Return errno value. */ |
| 956 | |
| 957 | static void |
| 958 | e7000_store_register (int regno) |
| 959 | { |
| 960 | char buf[200]; |
| 961 | |
| 962 | if (regno == -1) |
| 963 | { |
| 964 | e7000_store_registers (); |
| 965 | return; |
| 966 | } |
| 967 | |
| 968 | if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300) |
| 969 | { |
| 970 | if (regno <= 7) |
| 971 | { |
| 972 | sprintf (buf, ".ER%d %s\r", regno, phex_nz (read_register (regno), 0)); |
| 973 | puts_e7000debug (buf); |
| 974 | } |
| 975 | else if (regno == PC_REGNUM) |
| 976 | { |
| 977 | sprintf (buf, ".PC %s\r", phex_nz (read_register (regno), 0)); |
| 978 | puts_e7000debug (buf); |
| 979 | } |
| 980 | #ifdef CCR_REGNUM |
| 981 | else if (regno == CCR_REGNUM) |
| 982 | { |
| 983 | sprintf (buf, ".CCR %s\r", phex_nz (read_register (regno), 0)); |
| 984 | puts_e7000debug (buf); |
| 985 | } |
| 986 | #endif |
| 987 | } |
| 988 | |
| 989 | else if (TARGET_ARCHITECTURE->arch == bfd_arch_sh) |
| 990 | { |
| 991 | if (regno == PC_REGNUM) |
| 992 | { |
| 993 | sprintf (buf, ".PC %s\r", phex_nz (read_register (regno), 0)); |
| 994 | puts_e7000debug (buf); |
| 995 | } |
| 996 | |
| 997 | else if (regno == SR_REGNUM) |
| 998 | { |
| 999 | sprintf (buf, ".SR %s\r", phex_nz (read_register (regno), 0)); |
| 1000 | puts_e7000debug (buf); |
| 1001 | } |
| 1002 | |
| 1003 | else if (regno == PR_REGNUM) |
| 1004 | { |
| 1005 | sprintf (buf, ".PR %s\r", phex_nz (read_register (regno), 0)); |
| 1006 | puts_e7000debug (buf); |
| 1007 | } |
| 1008 | |
| 1009 | else if (regno == GBR_REGNUM) |
| 1010 | { |
| 1011 | sprintf (buf, ".GBR %s\r", phex_nz (read_register (regno), 0)); |
| 1012 | puts_e7000debug (buf); |
| 1013 | } |
| 1014 | |
| 1015 | else if (regno == VBR_REGNUM) |
| 1016 | { |
| 1017 | sprintf (buf, ".VBR %s\r", phex_nz (read_register (regno), 0)); |
| 1018 | puts_e7000debug (buf); |
| 1019 | } |
| 1020 | |
| 1021 | else if (regno == MACH_REGNUM) |
| 1022 | { |
| 1023 | sprintf (buf, ".MACH %s\r", phex_nz (read_register (regno), 0)); |
| 1024 | puts_e7000debug (buf); |
| 1025 | } |
| 1026 | |
| 1027 | else if (regno == MACL_REGNUM) |
| 1028 | { |
| 1029 | sprintf (buf, ".MACL %s\r", phex_nz (read_register (regno), 0)); |
| 1030 | puts_e7000debug (buf); |
| 1031 | } |
| 1032 | else |
| 1033 | { |
| 1034 | sprintf (buf, ".R%d %s\r", regno, phex_nz (read_register (regno), 0)); |
| 1035 | puts_e7000debug (buf); |
| 1036 | } |
| 1037 | } |
| 1038 | |
| 1039 | expect_prompt (); |
| 1040 | } |
| 1041 | |
| 1042 | /* Get ready to modify the registers array. On machines which store |
| 1043 | individual registers, this doesn't need to do anything. On machines |
| 1044 | which store all the registers in one fell swoop, this makes sure |
| 1045 | that registers contains all the registers from the program being |
| 1046 | debugged. */ |
| 1047 | |
| 1048 | static void |
| 1049 | e7000_prepare_to_store (void) |
| 1050 | { |
| 1051 | /* Do nothing, since we can store individual regs */ |
| 1052 | } |
| 1053 | |
| 1054 | static void |
| 1055 | e7000_files_info (struct target_ops *ops) |
| 1056 | { |
| 1057 | printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baudrate); |
| 1058 | } |
| 1059 | |
| 1060 | static int |
| 1061 | stickbyte (char *where, unsigned int what) |
| 1062 | { |
| 1063 | static CONST char digs[] = "0123456789ABCDEF"; |
| 1064 | |
| 1065 | where[0] = digs[(what >> 4) & 0xf]; |
| 1066 | where[1] = digs[(what & 0xf) & 0xf]; |
| 1067 | |
| 1068 | return what; |
| 1069 | } |
| 1070 | |
| 1071 | /* Write a small ammount of memory. */ |
| 1072 | |
| 1073 | static int |
| 1074 | write_small (CORE_ADDR memaddr, unsigned char *myaddr, int len) |
| 1075 | { |
| 1076 | int i; |
| 1077 | char buf[200]; |
| 1078 | |
| 1079 | for (i = 0; i < len; i++) |
| 1080 | { |
| 1081 | if (((memaddr + i) & 3) == 0 && (i + 3 < len)) |
| 1082 | { |
| 1083 | /* Can be done with a long word */ |
| 1084 | sprintf (buf, "m %s %x%02x%02x%02x;l\r", |
| 1085 | paddr_nz (memaddr + i), |
| 1086 | myaddr[i], myaddr[i + 1], myaddr[i + 2], myaddr[i + 3]); |
| 1087 | puts_e7000debug (buf); |
| 1088 | i += 3; |
| 1089 | } |
| 1090 | else |
| 1091 | { |
| 1092 | sprintf (buf, "m %s %x\r", paddr_nz (memaddr + i), myaddr[i]); |
| 1093 | puts_e7000debug (buf); |
| 1094 | } |
| 1095 | } |
| 1096 | |
| 1097 | expect_prompt (); |
| 1098 | |
| 1099 | return len; |
| 1100 | } |
| 1101 | |
| 1102 | /* Write a large ammount of memory, this only works with the serial |
| 1103 | mode enabled. Command is sent as |
| 1104 | |
| 1105 | il ;s:s\r -> |
| 1106 | <- il ;s:s\r |
| 1107 | <- ENQ |
| 1108 | ACK -> |
| 1109 | <- LO s\r |
| 1110 | Srecords... |
| 1111 | ^Z -> |
| 1112 | <- ENQ |
| 1113 | ACK -> |
| 1114 | <- : |
| 1115 | */ |
| 1116 | |
| 1117 | static int |
| 1118 | write_large (CORE_ADDR memaddr, unsigned char *myaddr, int len) |
| 1119 | { |
| 1120 | int i; |
| 1121 | #define maxstride 128 |
| 1122 | int stride; |
| 1123 | |
| 1124 | puts_e7000debug ("IL ;S:FK\r"); |
| 1125 | expect (ENQSTRING); |
| 1126 | putchar_e7000 (ACK); |
| 1127 | expect ("LO FK\r"); |
| 1128 | |
| 1129 | for (i = 0; i < len; i += stride) |
| 1130 | { |
| 1131 | char compose[maxstride * 2 + 50]; |
| 1132 | int address = i + memaddr; |
| 1133 | int j; |
| 1134 | int check_sum; |
| 1135 | int where = 0; |
| 1136 | int alen; |
| 1137 | |
| 1138 | stride = len - i; |
| 1139 | if (stride > maxstride) |
| 1140 | stride = maxstride; |
| 1141 | |
| 1142 | compose[where++] = 'S'; |
| 1143 | check_sum = 0; |
| 1144 | if (address >= 0xffffff) |
| 1145 | alen = 4; |
| 1146 | else if (address >= 0xffff) |
| 1147 | alen = 3; |
| 1148 | else |
| 1149 | alen = 2; |
| 1150 | /* Insert type. */ |
| 1151 | compose[where++] = alen - 1 + '0'; |
| 1152 | /* Insert length. */ |
| 1153 | check_sum += stickbyte (compose + where, alen + stride + 1); |
| 1154 | where += 2; |
| 1155 | while (alen > 0) |
| 1156 | { |
| 1157 | alen--; |
| 1158 | check_sum += stickbyte (compose + where, address >> (8 * (alen))); |
| 1159 | where += 2; |
| 1160 | } |
| 1161 | |
| 1162 | for (j = 0; j < stride; j++) |
| 1163 | { |
| 1164 | check_sum += stickbyte (compose + where, myaddr[i + j]); |
| 1165 | where += 2; |
| 1166 | } |
| 1167 | stickbyte (compose + where, ~check_sum); |
| 1168 | where += 2; |
| 1169 | compose[where++] = '\r'; |
| 1170 | compose[where++] = '\n'; |
| 1171 | compose[where++] = 0; |
| 1172 | |
| 1173 | serial_write (e7000_desc, compose, where); |
| 1174 | j = readchar (0); |
| 1175 | if (j == -1) |
| 1176 | { |
| 1177 | /* This is ok - nothing there */ |
| 1178 | } |
| 1179 | else if (j == ENQ) |
| 1180 | { |
| 1181 | /* Hmm, it's trying to tell us something */ |
| 1182 | expect (":"); |
| 1183 | error ("Error writing memory"); |
| 1184 | } |
| 1185 | else |
| 1186 | { |
| 1187 | printf_unfiltered ("@%d}@", j); |
| 1188 | while ((j = readchar (0)) > 0) |
| 1189 | { |
| 1190 | printf_unfiltered ("@{%d}@", j); |
| 1191 | } |
| 1192 | } |
| 1193 | } |
| 1194 | |
| 1195 | /* Send the trailer record */ |
| 1196 | write_e7000 ("S70500000000FA\r"); |
| 1197 | putchar_e7000 (CTRLZ); |
| 1198 | expect (ENQSTRING); |
| 1199 | putchar_e7000 (ACK); |
| 1200 | expect (":"); |
| 1201 | |
| 1202 | return len; |
| 1203 | } |
| 1204 | |
| 1205 | /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's |
| 1206 | memory at MEMADDR. Returns length moved. |
| 1207 | |
| 1208 | Can't use the Srecord load over ethernet, so don't use fast method |
| 1209 | then. */ |
| 1210 | |
| 1211 | static int |
| 1212 | e7000_write_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) |
| 1213 | { |
| 1214 | if (len < 16 || using_tcp || using_pc) |
| 1215 | return write_small (memaddr, myaddr, len); |
| 1216 | else |
| 1217 | return write_large (memaddr, myaddr, len); |
| 1218 | } |
| 1219 | |
| 1220 | /* Read LEN bytes from inferior memory at MEMADDR. Put the result |
| 1221 | at debugger address MYADDR. Returns length moved. |
| 1222 | |
| 1223 | Small transactions we send |
| 1224 | m <addr>;l |
| 1225 | and receive |
| 1226 | 00000000 12345678 ? |
| 1227 | */ |
| 1228 | |
| 1229 | static int |
| 1230 | e7000_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) |
| 1231 | { |
| 1232 | int count; |
| 1233 | int c; |
| 1234 | int i; |
| 1235 | char buf[200]; |
| 1236 | /* Starting address of this pass. */ |
| 1237 | |
| 1238 | /* printf("READ INF %x %x %d\n", memaddr, myaddr, len); */ |
| 1239 | if (((memaddr - 1) + len) < memaddr) |
| 1240 | { |
| 1241 | errno = EIO; |
| 1242 | return 0; |
| 1243 | } |
| 1244 | |
| 1245 | sprintf (buf, "m %s;l\r", paddr_nz (memaddr)); |
| 1246 | puts_e7000debug (buf); |
| 1247 | |
| 1248 | for (count = 0; count < len; count += 4) |
| 1249 | { |
| 1250 | /* Suck away the address */ |
| 1251 | c = gch (); |
| 1252 | while (c != ' ') |
| 1253 | c = gch (); |
| 1254 | c = gch (); |
| 1255 | if (c == '*') |
| 1256 | { /* Some kind of error */ |
| 1257 | puts_e7000debug (".\r"); /* Some errors leave us in memory input mode */ |
| 1258 | expect_full_prompt (); |
| 1259 | return -1; |
| 1260 | } |
| 1261 | while (c != ' ') |
| 1262 | c = gch (); |
| 1263 | |
| 1264 | /* Now read in the data */ |
| 1265 | for (i = 0; i < 4; i++) |
| 1266 | { |
| 1267 | int b = gbyte (); |
| 1268 | if (count + i < len) |
| 1269 | { |
| 1270 | myaddr[count + i] = b; |
| 1271 | } |
| 1272 | } |
| 1273 | |
| 1274 | /* Skip the trailing ? and send a . to end and a cr for more */ |
| 1275 | gch (); |
| 1276 | gch (); |
| 1277 | if (count + 4 >= len) |
| 1278 | puts_e7000debug (".\r"); |
| 1279 | else |
| 1280 | puts_e7000debug ("\r"); |
| 1281 | |
| 1282 | } |
| 1283 | expect_prompt (); |
| 1284 | return len; |
| 1285 | } |
| 1286 | |
| 1287 | |
| 1288 | |
| 1289 | /* |
| 1290 | For large transfers we used to send |
| 1291 | |
| 1292 | |
| 1293 | d <addr> <endaddr>\r |
| 1294 | |
| 1295 | and receive |
| 1296 | <ADDRESS> < D A T A > < ASCII CODE > |
| 1297 | 00000000 5F FD FD FF DF 7F DF FF 01 00 01 00 02 00 08 04 "_..............." |
| 1298 | 00000010 FF D7 FF 7F D7 F1 7F FF 00 05 00 00 08 00 40 00 "..............@." |
| 1299 | 00000020 7F FD FF F7 7F FF FF F7 00 00 00 00 00 00 00 00 "................" |
| 1300 | |
| 1301 | A cost in chars for each transaction of 80 + 5*n-bytes. |
| 1302 | |
| 1303 | Large transactions could be done with the srecord load code, but |
| 1304 | there is a pause for a second before dumping starts, which slows the |
| 1305 | average rate down! |
| 1306 | */ |
| 1307 | |
| 1308 | static int |
| 1309 | e7000_read_inferior_memory_large (CORE_ADDR memaddr, unsigned char *myaddr, |
| 1310 | int len) |
| 1311 | { |
| 1312 | int count; |
| 1313 | int c; |
| 1314 | char buf[200]; |
| 1315 | |
| 1316 | /* Starting address of this pass. */ |
| 1317 | |
| 1318 | if (((memaddr - 1) + len) < memaddr) |
| 1319 | { |
| 1320 | errno = EIO; |
| 1321 | return 0; |
| 1322 | } |
| 1323 | |
| 1324 | sprintf (buf, "d %s %s\r", paddr_nz (memaddr), paddr_nz (memaddr + len - 1)); |
| 1325 | puts_e7000debug (buf); |
| 1326 | |
| 1327 | count = 0; |
| 1328 | c = gch (); |
| 1329 | |
| 1330 | /* skip down to the first ">" */ |
| 1331 | while (c != '>') |
| 1332 | c = gch (); |
| 1333 | /* now skip to the end of that line */ |
| 1334 | while (c != '\r') |
| 1335 | c = gch (); |
| 1336 | c = gch (); |
| 1337 | |
| 1338 | while (count < len) |
| 1339 | { |
| 1340 | /* get rid of any white space before the address */ |
| 1341 | while (c <= ' ') |
| 1342 | c = gch (); |
| 1343 | |
| 1344 | /* Skip the address */ |
| 1345 | get_hex (&c); |
| 1346 | |
| 1347 | /* read in the bytes on the line */ |
| 1348 | while (c != '"' && count < len) |
| 1349 | { |
| 1350 | if (c == ' ') |
| 1351 | c = gch (); |
| 1352 | else |
| 1353 | { |
| 1354 | myaddr[count++] = get_hex (&c); |
| 1355 | } |
| 1356 | } |
| 1357 | /* throw out the rest of the line */ |
| 1358 | while (c != '\r') |
| 1359 | c = gch (); |
| 1360 | } |
| 1361 | |
| 1362 | /* wait for the ":" prompt */ |
| 1363 | while (c != ':') |
| 1364 | c = gch (); |
| 1365 | |
| 1366 | return len; |
| 1367 | } |
| 1368 | |
| 1369 | #if 0 |
| 1370 | |
| 1371 | static int |
| 1372 | fast_but_for_the_pause_e7000_read_inferior_memory (CORE_ADDR memaddr, |
| 1373 | char *myaddr, int len) |
| 1374 | { |
| 1375 | int loop; |
| 1376 | int c; |
| 1377 | char buf[200]; |
| 1378 | |
| 1379 | if (((memaddr - 1) + len) < memaddr) |
| 1380 | { |
| 1381 | errno = EIO; |
| 1382 | return 0; |
| 1383 | } |
| 1384 | |
| 1385 | sprintf (buf, "is %x@%x:s\r", memaddr, len); |
| 1386 | puts_e7000debug (buf); |
| 1387 | gch (); |
| 1388 | c = gch (); |
| 1389 | if (c != ENQ) |
| 1390 | { |
| 1391 | /* Got an error */ |
| 1392 | error ("Memory read error"); |
| 1393 | } |
| 1394 | putchar_e7000 (ACK); |
| 1395 | expect ("SV s"); |
| 1396 | loop = 1; |
| 1397 | while (loop) |
| 1398 | { |
| 1399 | int type; |
| 1400 | int length; |
| 1401 | int addr; |
| 1402 | int i; |
| 1403 | |
| 1404 | c = gch (); |
| 1405 | switch (c) |
| 1406 | { |
| 1407 | case ENQ: /* ENQ, at the end */ |
| 1408 | loop = 0; |
| 1409 | break; |
| 1410 | case 'S': |
| 1411 | /* Start of an Srecord */ |
| 1412 | type = gch (); |
| 1413 | length = gbyte (); |
| 1414 | switch (type) |
| 1415 | { |
| 1416 | case '7': /* Termination record, ignore */ |
| 1417 | case '0': |
| 1418 | case '8': |
| 1419 | case '9': |
| 1420 | /* Header record - ignore it */ |
| 1421 | while (length--) |
| 1422 | { |
| 1423 | gbyte (); |
| 1424 | } |
| 1425 | break; |
| 1426 | case '1': |
| 1427 | case '2': |
| 1428 | case '3': |
| 1429 | { |
| 1430 | int alen; |
| 1431 | |
| 1432 | alen = type - '0' + 1; |
| 1433 | addr = 0; |
| 1434 | while (alen--) |
| 1435 | { |
| 1436 | addr = (addr << 8) + gbyte (); |
| 1437 | length--; |
| 1438 | } |
| 1439 | |
| 1440 | for (i = 0; i < length - 1; i++) |
| 1441 | myaddr[i + addr - memaddr] = gbyte (); |
| 1442 | |
| 1443 | gbyte (); /* Ignore checksum */ |
| 1444 | } |
| 1445 | } |
| 1446 | } |
| 1447 | } |
| 1448 | |
| 1449 | putchar_e7000 (ACK); |
| 1450 | expect ("TOP ADDRESS ="); |
| 1451 | expect ("END ADDRESS ="); |
| 1452 | expect (":"); |
| 1453 | |
| 1454 | return len; |
| 1455 | } |
| 1456 | |
| 1457 | #endif |
| 1458 | |
| 1459 | /* Transfer LEN bytes between GDB address MYADDR and target address |
| 1460 | MEMADDR. If WRITE is non-zero, transfer them to the target, |
| 1461 | otherwise transfer them from the target. TARGET is unused. |
| 1462 | |
| 1463 | Returns the number of bytes transferred. */ |
| 1464 | |
| 1465 | static int |
| 1466 | e7000_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len, |
| 1467 | int write, struct mem_attrib *attrib, |
| 1468 | struct target_ops *target) |
| 1469 | { |
| 1470 | if (write) |
| 1471 | return e7000_write_inferior_memory (memaddr, myaddr, len); |
| 1472 | else if (len < 16) |
| 1473 | return e7000_read_inferior_memory (memaddr, myaddr, len); |
| 1474 | else |
| 1475 | return e7000_read_inferior_memory_large (memaddr, myaddr, len); |
| 1476 | } |
| 1477 | |
| 1478 | static void |
| 1479 | e7000_kill (void) |
| 1480 | { |
| 1481 | } |
| 1482 | |
| 1483 | static void |
| 1484 | e7000_load (char *args, int from_tty) |
| 1485 | { |
| 1486 | struct cleanup *old_chain; |
| 1487 | asection *section; |
| 1488 | bfd *pbfd; |
| 1489 | bfd_vma entry; |
| 1490 | #define WRITESIZE 0x1000 |
| 1491 | char buf[2 + 4 + 4 + WRITESIZE]; /* `DT' + <addr> + <len> + <data> */ |
| 1492 | char *filename; |
| 1493 | int quiet; |
| 1494 | int nostart; |
| 1495 | time_t start_time, end_time; /* Start and end times of download */ |
| 1496 | unsigned long data_count; /* Number of bytes transferred to memory */ |
| 1497 | int oldtimeout = timeout; |
| 1498 | |
| 1499 | timeout = remote_timeout; |
| 1500 | |
| 1501 | |
| 1502 | /* FIXME! change test to test for type of download */ |
| 1503 | if (!using_tcp) |
| 1504 | { |
| 1505 | generic_load (args, from_tty); |
| 1506 | return; |
| 1507 | } |
| 1508 | |
| 1509 | /* for direct tcp connections, we can do a fast binary download */ |
| 1510 | buf[0] = 'D'; |
| 1511 | buf[1] = 'T'; |
| 1512 | quiet = 0; |
| 1513 | nostart = 0; |
| 1514 | filename = NULL; |
| 1515 | |
| 1516 | while (*args != '\000') |
| 1517 | { |
| 1518 | char *arg; |
| 1519 | |
| 1520 | while (isspace (*args)) |
| 1521 | args++; |
| 1522 | |
| 1523 | arg = args; |
| 1524 | |
| 1525 | while ((*args != '\000') && !isspace (*args)) |
| 1526 | args++; |
| 1527 | |
| 1528 | if (*args != '\000') |
| 1529 | *args++ = '\000'; |
| 1530 | |
| 1531 | if (*arg != '-') |
| 1532 | filename = arg; |
| 1533 | else if (strncmp (arg, "-quiet", strlen (arg)) == 0) |
| 1534 | quiet = 1; |
| 1535 | else if (strncmp (arg, "-nostart", strlen (arg)) == 0) |
| 1536 | nostart = 1; |
| 1537 | else |
| 1538 | error ("unknown option `%s'", arg); |
| 1539 | } |
| 1540 | |
| 1541 | if (!filename) |
| 1542 | filename = get_exec_file (1); |
| 1543 | |
| 1544 | pbfd = bfd_openr (filename, gnutarget); |
| 1545 | if (pbfd == NULL) |
| 1546 | { |
| 1547 | perror_with_name (filename); |
| 1548 | return; |
| 1549 | } |
| 1550 | old_chain = make_cleanup_bfd_close (pbfd); |
| 1551 | |
| 1552 | if (!bfd_check_format (pbfd, bfd_object)) |
| 1553 | error ("\"%s\" is not an object file: %s", filename, |
| 1554 | bfd_errmsg (bfd_get_error ())); |
| 1555 | |
| 1556 | start_time = time (NULL); |
| 1557 | data_count = 0; |
| 1558 | |
| 1559 | puts_e7000debug ("mw\r"); |
| 1560 | |
| 1561 | expect ("\nOK"); |
| 1562 | |
| 1563 | for (section = pbfd->sections; section; section = section->next) |
| 1564 | { |
| 1565 | if (bfd_get_section_flags (pbfd, section) & SEC_LOAD) |
| 1566 | { |
| 1567 | bfd_vma section_address; |
| 1568 | bfd_size_type section_size; |
| 1569 | file_ptr fptr; |
| 1570 | |
| 1571 | section_address = bfd_get_section_vma (pbfd, section); |
| 1572 | section_size = bfd_get_section_size (section); |
| 1573 | |
| 1574 | if (!quiet) |
| 1575 | printf_filtered ("[Loading section %s at 0x%s (%s bytes)]\n", |
| 1576 | bfd_get_section_name (pbfd, section), |
| 1577 | paddr_nz (section_address), |
| 1578 | paddr_u (section_size)); |
| 1579 | |
| 1580 | fptr = 0; |
| 1581 | |
| 1582 | data_count += section_size; |
| 1583 | |
| 1584 | while (section_size > 0) |
| 1585 | { |
| 1586 | int count; |
| 1587 | static char inds[] = "|/-\\"; |
| 1588 | static int k = 0; |
| 1589 | |
| 1590 | QUIT; |
| 1591 | |
| 1592 | count = min (section_size, WRITESIZE); |
| 1593 | |
| 1594 | buf[2] = section_address >> 24; |
| 1595 | buf[3] = section_address >> 16; |
| 1596 | buf[4] = section_address >> 8; |
| 1597 | buf[5] = section_address; |
| 1598 | |
| 1599 | buf[6] = count >> 24; |
| 1600 | buf[7] = count >> 16; |
| 1601 | buf[8] = count >> 8; |
| 1602 | buf[9] = count; |
| 1603 | |
| 1604 | bfd_get_section_contents (pbfd, section, buf + 10, fptr, count); |
| 1605 | |
| 1606 | if (serial_write (e7000_desc, buf, count + 10)) |
| 1607 | fprintf_unfiltered (gdb_stderr, |
| 1608 | "e7000_load: serial_write failed: %s\n", |
| 1609 | safe_strerror (errno)); |
| 1610 | |
| 1611 | expect ("OK"); |
| 1612 | |
| 1613 | if (!quiet) |
| 1614 | { |
| 1615 | printf_unfiltered ("\r%c", inds[k++ % 4]); |
| 1616 | gdb_flush (gdb_stdout); |
| 1617 | } |
| 1618 | |
| 1619 | section_address += count; |
| 1620 | fptr += count; |
| 1621 | section_size -= count; |
| 1622 | } |
| 1623 | } |
| 1624 | } |
| 1625 | |
| 1626 | write_e7000 ("ED"); |
| 1627 | |
| 1628 | expect_prompt (); |
| 1629 | |
| 1630 | end_time = time (NULL); |
| 1631 | |
| 1632 | /* Finally, make the PC point at the start address */ |
| 1633 | |
| 1634 | if (exec_bfd) |
| 1635 | write_pc (bfd_get_start_address (exec_bfd)); |
| 1636 | |
| 1637 | inferior_ptid = null_ptid; /* No process now */ |
| 1638 | |
| 1639 | /* This is necessary because many things were based on the PC at the time that |
| 1640 | we attached to the monitor, which is no longer valid now that we have loaded |
| 1641 | new code (and just changed the PC). Another way to do this might be to call |
| 1642 | normal_stop, except that the stack may not be valid, and things would get |
| 1643 | horribly confused... */ |
| 1644 | |
| 1645 | clear_symtab_users (); |
| 1646 | |
| 1647 | if (!nostart) |
| 1648 | { |
| 1649 | entry = bfd_get_start_address (pbfd); |
| 1650 | |
| 1651 | if (!quiet) |
| 1652 | printf_unfiltered ("[Starting %s at 0x%s]\n", filename, paddr_nz (entry)); |
| 1653 | |
| 1654 | /* start_routine (entry); */ |
| 1655 | } |
| 1656 | |
| 1657 | report_transfer_performance (data_count, start_time, end_time); |
| 1658 | |
| 1659 | do_cleanups (old_chain); |
| 1660 | timeout = oldtimeout; |
| 1661 | } |
| 1662 | |
| 1663 | /* Clean up when a program exits. |
| 1664 | |
| 1665 | The program actually lives on in the remote processor's RAM, and may be |
| 1666 | run again without a download. Don't leave it full of breakpoint |
| 1667 | instructions. */ |
| 1668 | |
| 1669 | static void |
| 1670 | e7000_mourn_inferior (void) |
| 1671 | { |
| 1672 | remove_breakpoints (); |
| 1673 | unpush_target (&e7000_ops); |
| 1674 | generic_mourn_inferior (); /* Do all the proper things now */ |
| 1675 | } |
| 1676 | |
| 1677 | #define MAX_BREAKPOINTS 200 |
| 1678 | #ifdef HARD_BREAKPOINTS |
| 1679 | #define MAX_E7000DEBUG_BREAKPOINTS (BC_BREAKPOINTS ? 5 : MAX_BREAKPOINTS) |
| 1680 | #else |
| 1681 | #define MAX_E7000DEBUG_BREAKPOINTS MAX_BREAKPOINTS |
| 1682 | #endif |
| 1683 | |
| 1684 | /* Since we can change to soft breakpoints dynamically, we must define |
| 1685 | more than enough. Was breakaddr[MAX_E7000DEBUG_BREAKPOINTS]. */ |
| 1686 | static CORE_ADDR breakaddr[MAX_BREAKPOINTS] = |
| 1687 | {0}; |
| 1688 | |
| 1689 | static int |
| 1690 | e7000_insert_breakpoint (CORE_ADDR addr, char *shadow) |
| 1691 | { |
| 1692 | int i; |
| 1693 | char buf[200]; |
| 1694 | #if 0 |
| 1695 | static char nop[2] = NOP; |
| 1696 | #endif |
| 1697 | |
| 1698 | for (i = 0; i <= MAX_E7000DEBUG_BREAKPOINTS; i++) |
| 1699 | if (breakaddr[i] == 0) |
| 1700 | { |
| 1701 | breakaddr[i] = addr; |
| 1702 | /* Save old contents, and insert a nop in the space */ |
| 1703 | #ifdef HARD_BREAKPOINTS |
| 1704 | if (BC_BREAKPOINTS) |
| 1705 | { |
| 1706 | sprintf (buf, "BC%d A=%s\r", i + 1, paddr_nz (addr)); |
| 1707 | puts_e7000debug (buf); |
| 1708 | } |
| 1709 | else |
| 1710 | { |
| 1711 | sprintf (buf, "B %s\r", paddr_nz (addr)); |
| 1712 | puts_e7000debug (buf); |
| 1713 | } |
| 1714 | #else |
| 1715 | #if 0 |
| 1716 | e7000_read_inferior_memory (addr, shadow, 2); |
| 1717 | e7000_write_inferior_memory (addr, nop, 2); |
| 1718 | #endif |
| 1719 | |
| 1720 | sprintf (buf, "B %x\r", addr); |
| 1721 | puts_e7000debug (buf); |
| 1722 | #endif |
| 1723 | expect_prompt (); |
| 1724 | return 0; |
| 1725 | } |
| 1726 | |
| 1727 | error ("Too many breakpoints ( > %d) for the E7000\n", |
| 1728 | MAX_E7000DEBUG_BREAKPOINTS); |
| 1729 | return 1; |
| 1730 | } |
| 1731 | |
| 1732 | static int |
| 1733 | e7000_remove_breakpoint (CORE_ADDR addr, char *shadow) |
| 1734 | { |
| 1735 | int i; |
| 1736 | char buf[200]; |
| 1737 | |
| 1738 | for (i = 0; i < MAX_E7000DEBUG_BREAKPOINTS; i++) |
| 1739 | if (breakaddr[i] == addr) |
| 1740 | { |
| 1741 | breakaddr[i] = 0; |
| 1742 | #ifdef HARD_BREAKPOINTS |
| 1743 | if (BC_BREAKPOINTS) |
| 1744 | { |
| 1745 | sprintf (buf, "BC%d - \r", i + 1); |
| 1746 | puts_e7000debug (buf); |
| 1747 | } |
| 1748 | else |
| 1749 | { |
| 1750 | sprintf (buf, "B - %s\r", paddr_nz (addr)); |
| 1751 | puts_e7000debug (buf); |
| 1752 | } |
| 1753 | expect_prompt (); |
| 1754 | #else |
| 1755 | sprintf (buf, "B - %s\r", paddr_nz (addr)); |
| 1756 | puts_e7000debug (buf); |
| 1757 | expect_prompt (); |
| 1758 | |
| 1759 | #if 0 |
| 1760 | /* Replace the insn under the break */ |
| 1761 | e7000_write_inferior_memory (addr, shadow, 2); |
| 1762 | #endif |
| 1763 | #endif |
| 1764 | |
| 1765 | return 0; |
| 1766 | } |
| 1767 | |
| 1768 | warning ("Can't find breakpoint associated with 0x%s\n", paddr_nz (addr)); |
| 1769 | return 1; |
| 1770 | } |
| 1771 | |
| 1772 | /* Put a command string, in args, out to STDBUG. Output from STDBUG |
| 1773 | is placed on the users terminal until the prompt is seen. */ |
| 1774 | |
| 1775 | static void |
| 1776 | e7000_command (char *args, int fromtty) |
| 1777 | { |
| 1778 | /* FIXME: arbitrary limit on length of args. */ |
| 1779 | char buf[200]; |
| 1780 | |
| 1781 | echo = 0; |
| 1782 | |
| 1783 | if (!e7000_desc) |
| 1784 | error ("e7000 target not open."); |
| 1785 | if (!args) |
| 1786 | { |
| 1787 | puts_e7000debug ("\r"); |
| 1788 | } |
| 1789 | else |
| 1790 | { |
| 1791 | sprintf (buf, "%s\r", args); |
| 1792 | puts_e7000debug (buf); |
| 1793 | } |
| 1794 | |
| 1795 | echo++; |
| 1796 | ctrl_c = 2; |
| 1797 | expect_full_prompt (); |
| 1798 | echo--; |
| 1799 | ctrl_c = 0; |
| 1800 | printf_unfiltered ("\n"); |
| 1801 | |
| 1802 | /* Who knows what the command did... */ |
| 1803 | registers_changed (); |
| 1804 | } |
| 1805 | |
| 1806 | |
| 1807 | static void |
| 1808 | e7000_drain_command (char *args, int fromtty) |
| 1809 | { |
| 1810 | int c; |
| 1811 | |
| 1812 | puts_e7000debug ("end\r"); |
| 1813 | putchar_e7000 (CTRLC); |
| 1814 | |
| 1815 | while ((c = readchar (1)) != -1) |
| 1816 | { |
| 1817 | if (quit_flag) |
| 1818 | { |
| 1819 | putchar_e7000 (CTRLC); |
| 1820 | quit_flag = 0; |
| 1821 | } |
| 1822 | if (c > ' ' && c < 127) |
| 1823 | printf_unfiltered ("%c", c & 0xff); |
| 1824 | else |
| 1825 | printf_unfiltered ("<%x>", c & 0xff); |
| 1826 | } |
| 1827 | } |
| 1828 | |
| 1829 | #define NITEMS 7 |
| 1830 | |
| 1831 | static int |
| 1832 | why_stop (void) |
| 1833 | { |
| 1834 | static char *strings[NITEMS] = |
| 1835 | { |
| 1836 | "STEP NORMAL", |
| 1837 | "BREAK POINT", |
| 1838 | "BREAK KEY", |
| 1839 | "BREAK CONDI", |
| 1840 | "CYCLE ACCESS", |
| 1841 | "ILLEGAL INSTRUCTION", |
| 1842 | "WRITE PROTECT", |
| 1843 | }; |
| 1844 | char *p[NITEMS]; |
| 1845 | int c; |
| 1846 | int i; |
| 1847 | |
| 1848 | for (i = 0; i < NITEMS; ++i) |
| 1849 | p[i] = strings[i]; |
| 1850 | |
| 1851 | c = gch (); |
| 1852 | while (1) |
| 1853 | { |
| 1854 | for (i = 0; i < NITEMS; i++) |
| 1855 | { |
| 1856 | if (c == *(p[i])) |
| 1857 | { |
| 1858 | p[i]++; |
| 1859 | if (*(p[i]) == 0) |
| 1860 | { |
| 1861 | /* found one of the choices */ |
| 1862 | return i; |
| 1863 | } |
| 1864 | } |
| 1865 | else |
| 1866 | p[i] = strings[i]; |
| 1867 | } |
| 1868 | |
| 1869 | c = gch (); |
| 1870 | } |
| 1871 | } |
| 1872 | |
| 1873 | /* Suck characters, if a string match, then return the strings index |
| 1874 | otherwise echo them. */ |
| 1875 | |
| 1876 | static int |
| 1877 | expect_n (char **strings) |
| 1878 | { |
| 1879 | char *(ptr[10]); |
| 1880 | int n; |
| 1881 | int c; |
| 1882 | char saveaway[100]; |
| 1883 | char *buffer = saveaway; |
| 1884 | /* Count number of expect strings */ |
| 1885 | |
| 1886 | for (n = 0; strings[n]; n++) |
| 1887 | { |
| 1888 | ptr[n] = strings[n]; |
| 1889 | } |
| 1890 | |
| 1891 | while (1) |
| 1892 | { |
| 1893 | int i; |
| 1894 | int gotone = 0; |
| 1895 | |
| 1896 | c = readchar (1); |
| 1897 | if (c == -1) |
| 1898 | { |
| 1899 | printf_unfiltered ("[waiting for e7000...]\n"); |
| 1900 | } |
| 1901 | #ifdef __GO32__ |
| 1902 | if (kbhit ()) |
| 1903 | { |
| 1904 | int k = getkey (); |
| 1905 | |
| 1906 | if (k == 1) |
| 1907 | quit_flag = 1; |
| 1908 | } |
| 1909 | #endif |
| 1910 | if (quit_flag) |
| 1911 | { |
| 1912 | putchar_e7000 (CTRLC); /* interrupt the running program */ |
| 1913 | quit_flag = 0; |
| 1914 | } |
| 1915 | |
| 1916 | for (i = 0; i < n; i++) |
| 1917 | { |
| 1918 | if (c == ptr[i][0]) |
| 1919 | { |
| 1920 | ptr[i]++; |
| 1921 | if (ptr[i][0] == 0) |
| 1922 | { |
| 1923 | /* Gone all the way */ |
| 1924 | return i; |
| 1925 | } |
| 1926 | gotone = 1; |
| 1927 | } |
| 1928 | else |
| 1929 | { |
| 1930 | ptr[i] = strings[i]; |
| 1931 | } |
| 1932 | } |
| 1933 | |
| 1934 | if (gotone) |
| 1935 | { |
| 1936 | /* Save it up incase we find that there was no match */ |
| 1937 | *buffer++ = c; |
| 1938 | } |
| 1939 | else |
| 1940 | { |
| 1941 | if (buffer != saveaway) |
| 1942 | { |
| 1943 | *buffer++ = 0; |
| 1944 | printf_unfiltered ("%s", buffer); |
| 1945 | buffer = saveaway; |
| 1946 | } |
| 1947 | if (c != -1) |
| 1948 | { |
| 1949 | putchar_unfiltered (c); |
| 1950 | gdb_flush (gdb_stdout); |
| 1951 | } |
| 1952 | } |
| 1953 | } |
| 1954 | } |
| 1955 | |
| 1956 | /* We subtract two from the pc here rather than use |
| 1957 | DECR_PC_AFTER_BREAK since the e7000 doesn't always add two to the |
| 1958 | pc, and the simulators never do. */ |
| 1959 | |
| 1960 | static void |
| 1961 | sub2_from_pc (void) |
| 1962 | { |
| 1963 | char buf[4]; |
| 1964 | char buf2[200]; |
| 1965 | |
| 1966 | store_signed_integer (buf, |
| 1967 | register_size (current_gdbarch, PC_REGNUM), |
| 1968 | read_register (PC_REGNUM) - 2); |
| 1969 | regcache_raw_supply (current_regcache, PC_REGNUM, buf); |
| 1970 | sprintf (buf2, ".PC %s\r", phex_nz (read_register (PC_REGNUM), 0)); |
| 1971 | puts_e7000debug (buf2); |
| 1972 | } |
| 1973 | |
| 1974 | #define WAS_SLEEP 0 |
| 1975 | #define WAS_INT 1 |
| 1976 | #define WAS_RUNNING 2 |
| 1977 | #define WAS_OTHER 3 |
| 1978 | |
| 1979 | static char *estrings[] = |
| 1980 | { |
| 1981 | "** SLEEP", |
| 1982 | "BREAK !", |
| 1983 | "** PC", |
| 1984 | "PC", |
| 1985 | NULL |
| 1986 | }; |
| 1987 | |
| 1988 | /* Wait until the remote machine stops, then return, storing status in |
| 1989 | STATUS just as `wait' would. */ |
| 1990 | |
| 1991 | static ptid_t |
| 1992 | e7000_wait (ptid_t ptid, struct target_waitstatus *status) |
| 1993 | { |
| 1994 | int stop_reason; |
| 1995 | int regno; |
| 1996 | int running_count = 0; |
| 1997 | int had_sleep = 0; |
| 1998 | int loop = 1; |
| 1999 | char *wanted_nopc = NULL; |
| 2000 | |
| 2001 | /* Then echo chars until PC= string seen */ |
| 2002 | gch (); /* Drop cr */ |
| 2003 | gch (); /* and space */ |
| 2004 | |
| 2005 | while (loop) |
| 2006 | { |
| 2007 | switch (expect_n (estrings)) |
| 2008 | { |
| 2009 | case WAS_OTHER: |
| 2010 | /* how did this happen ? */ |
| 2011 | loop = 0; |
| 2012 | break; |
| 2013 | case WAS_SLEEP: |
| 2014 | had_sleep = 1; |
| 2015 | putchar_e7000 (CTRLC); |
| 2016 | loop = 0; |
| 2017 | break; |
| 2018 | case WAS_INT: |
| 2019 | loop = 0; |
| 2020 | break; |
| 2021 | case WAS_RUNNING: |
| 2022 | running_count++; |
| 2023 | if (running_count == 20) |
| 2024 | { |
| 2025 | printf_unfiltered ("[running...]\n"); |
| 2026 | running_count = 0; |
| 2027 | } |
| 2028 | break; |
| 2029 | default: |
| 2030 | /* error? */ |
| 2031 | break; |
| 2032 | } |
| 2033 | } |
| 2034 | |
| 2035 | /* Skip till the PC= */ |
| 2036 | expect ("="); |
| 2037 | |
| 2038 | if (TARGET_ARCHITECTURE->arch == bfd_arch_sh) |
| 2039 | { |
| 2040 | wanted_nopc = want_nopc_sh; |
| 2041 | switch (TARGET_ARCHITECTURE->mach) |
| 2042 | { |
| 2043 | case bfd_mach_sh3: |
| 2044 | case bfd_mach_sh3e: |
| 2045 | case bfd_mach_sh4: |
| 2046 | wanted_nopc = want_nopc_sh3; |
| 2047 | } |
| 2048 | } |
| 2049 | if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300) |
| 2050 | { |
| 2051 | wanted_nopc = want_nopc_h8300h; |
| 2052 | switch (TARGET_ARCHITECTURE->mach) |
| 2053 | { |
| 2054 | case bfd_mach_h8300s: |
| 2055 | case bfd_mach_h8300sn: |
| 2056 | case bfd_mach_h8300sx: |
| 2057 | case bfd_mach_h8300sxn: |
| 2058 | wanted_nopc = want_nopc_h8300s; |
| 2059 | } |
| 2060 | } |
| 2061 | fetch_regs_from_dump (gch, wanted_nopc); |
| 2062 | |
| 2063 | /* And supply the extra ones the simulator uses */ |
| 2064 | for (regno = NUM_REALREGS; regno < NUM_REGS; regno++) |
| 2065 | { |
| 2066 | int buf = 0; |
| 2067 | regcache_raw_supply (current_regcache, regno, (char *) &buf); |
| 2068 | } |
| 2069 | |
| 2070 | stop_reason = why_stop (); |
| 2071 | expect_full_prompt (); |
| 2072 | |
| 2073 | status->kind = TARGET_WAITKIND_STOPPED; |
| 2074 | status->value.sig = TARGET_SIGNAL_TRAP; |
| 2075 | |
| 2076 | switch (stop_reason) |
| 2077 | { |
| 2078 | case 1: /* Breakpoint */ |
| 2079 | write_pc (read_pc ()); /* PC is always off by 2 for breakpoints */ |
| 2080 | status->value.sig = TARGET_SIGNAL_TRAP; |
| 2081 | break; |
| 2082 | case 0: /* Single step */ |
| 2083 | status->value.sig = TARGET_SIGNAL_TRAP; |
| 2084 | break; |
| 2085 | case 2: /* Interrupt */ |
| 2086 | if (had_sleep) |
| 2087 | { |
| 2088 | status->value.sig = TARGET_SIGNAL_TRAP; |
| 2089 | sub2_from_pc (); |
| 2090 | } |
| 2091 | else |
| 2092 | { |
| 2093 | status->value.sig = TARGET_SIGNAL_INT; |
| 2094 | } |
| 2095 | break; |
| 2096 | case 3: |
| 2097 | break; |
| 2098 | case 4: |
| 2099 | printf_unfiltered ("a cycle address error?\n"); |
| 2100 | status->value.sig = TARGET_SIGNAL_UNKNOWN; |
| 2101 | break; |
| 2102 | case 5: |
| 2103 | status->value.sig = TARGET_SIGNAL_ILL; |
| 2104 | break; |
| 2105 | case 6: |
| 2106 | status->value.sig = TARGET_SIGNAL_SEGV; |
| 2107 | break; |
| 2108 | case 7: /* Anything else (NITEMS + 1) */ |
| 2109 | printf_unfiltered ("a write protect error?\n"); |
| 2110 | status->value.sig = TARGET_SIGNAL_UNKNOWN; |
| 2111 | break; |
| 2112 | default: |
| 2113 | /* Get the user's attention - this should never happen. */ |
| 2114 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
| 2115 | } |
| 2116 | |
| 2117 | return inferior_ptid; |
| 2118 | } |
| 2119 | |
| 2120 | /* Stop the running program. */ |
| 2121 | |
| 2122 | static void |
| 2123 | e7000_stop (void) |
| 2124 | { |
| 2125 | /* Sending a ^C is supposed to stop the running program. */ |
| 2126 | putchar_e7000 (CTRLC); |
| 2127 | } |
| 2128 | |
| 2129 | /* Define the target subroutine names. */ |
| 2130 | |
| 2131 | struct target_ops e7000_ops; |
| 2132 | |
| 2133 | static void |
| 2134 | init_e7000_ops (void) |
| 2135 | { |
| 2136 | e7000_ops.to_shortname = "e7000"; |
| 2137 | e7000_ops.to_longname = "Remote Renesas e7000 target"; |
| 2138 | e7000_ops.to_doc = "Use a remote Renesas e7000 ICE connected by a serial line;\n\ |
| 2139 | or a network connection.\n\ |
| 2140 | Arguments are the name of the device for the serial line,\n\ |
| 2141 | the speed to connect at in bits per second.\n\ |
| 2142 | eg\n\ |
| 2143 | target e7000 /dev/ttya 9600\n\ |
| 2144 | target e7000 foobar"; |
| 2145 | e7000_ops.to_open = e7000_open; |
| 2146 | e7000_ops.to_close = e7000_close; |
| 2147 | e7000_ops.to_detach = e7000_detach; |
| 2148 | e7000_ops.to_resume = e7000_resume; |
| 2149 | e7000_ops.to_wait = e7000_wait; |
| 2150 | e7000_ops.to_fetch_registers = e7000_fetch_register; |
| 2151 | e7000_ops.to_store_registers = e7000_store_register; |
| 2152 | e7000_ops.to_prepare_to_store = e7000_prepare_to_store; |
| 2153 | e7000_ops.to_xfer_memory = e7000_xfer_inferior_memory; |
| 2154 | e7000_ops.to_files_info = e7000_files_info; |
| 2155 | e7000_ops.to_insert_breakpoint = e7000_insert_breakpoint; |
| 2156 | e7000_ops.to_remove_breakpoint = e7000_remove_breakpoint; |
| 2157 | e7000_ops.to_kill = e7000_kill; |
| 2158 | e7000_ops.to_load = e7000_load; |
| 2159 | e7000_ops.to_create_inferior = e7000_create_inferior; |
| 2160 | e7000_ops.to_mourn_inferior = e7000_mourn_inferior; |
| 2161 | e7000_ops.to_stop = e7000_stop; |
| 2162 | e7000_ops.to_stratum = process_stratum; |
| 2163 | e7000_ops.to_has_all_memory = 1; |
| 2164 | e7000_ops.to_has_memory = 1; |
| 2165 | e7000_ops.to_has_stack = 1; |
| 2166 | e7000_ops.to_has_registers = 1; |
| 2167 | e7000_ops.to_has_execution = 1; |
| 2168 | e7000_ops.to_magic = OPS_MAGIC; |
| 2169 | }; |
| 2170 | |
| 2171 | extern initialize_file_ftype _initialize_remote_e7000; /* -Wmissing-prototypes */ |
| 2172 | |
| 2173 | void |
| 2174 | _initialize_remote_e7000 (void) |
| 2175 | { |
| 2176 | init_e7000_ops (); |
| 2177 | add_target (&e7000_ops); |
| 2178 | |
| 2179 | add_com ("e7000", class_obscure, e7000_command, |
| 2180 | "Send a command to the e7000 monitor."); |
| 2181 | |
| 2182 | add_com ("ftplogin", class_obscure, e7000_login_command, |
| 2183 | "Login to machine and change to directory."); |
| 2184 | |
| 2185 | add_com ("ftpload", class_obscure, e7000_ftp_command, |
| 2186 | "Fetch and load a file from previously described place."); |
| 2187 | |
| 2188 | add_com ("drain", class_obscure, e7000_drain_command, |
| 2189 | "Drain pending e7000 text buffers."); |
| 2190 | |
| 2191 | deprecated_add_show_from_set |
| 2192 | (add_set_cmd ("usehardbreakpoints", no_class, |
| 2193 | var_integer, (char *) &use_hard_breakpoints, "\ |
| 2194 | Set use of hardware breakpoints for all breakpoints.\n", &setlist), |
| 2195 | &showlist); |
| 2196 | } |