monitor.c

   1 /*
   2  * QEMU monitor
   3  *
   4  * Copyright (c) 2003-2004 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include "vl.h"
  25 #include "disas.h"
  26 #include <dirent.h>
  27
  28 //#define DEBUG
  29 //#define DEBUG_COMPLETION
  30
  31 #ifndef offsetof
  32 #define offsetof(type, field) ((size_t) &((type *)0)->field)
  33 #endif
  34
  35 /*
  36  * Supported types:
  37  *
  38  * 'F'          filename
  39  * 'B'          block device name
  40  * 's'          string (accept optional quote)
  41  * 'i'          32 bit integer
  42  * 'l'          target long (32 or 64 bit)
  43  * '/'          optional gdb-like print format (like "/10x")
  44  *
  45  * '?'          optional type (for 'F', 's' and 'i')
  46  *
  47  */
  48
  49 typedef struct term_cmd_t {
  50     const char *name;
  51     const char *args_type;
  52     void (*handler)();
  53     const char *params;
  54     const char *help;
  55 } term_cmd_t;
  56
  57 static CharDriverState *monitor_hd;
  58
  59 static term_cmd_t term_cmds[];
  60 static term_cmd_t info_cmds[];
  61
  62 static char term_outbuf[1024];
  63 static int term_outbuf_index;
  64
  65 static void monitor_start_input(void);
  66
  67 void term_flush(void)
  68 {
  69     if (term_outbuf_index > 0) {
  70         qemu_chr_write(monitor_hd, term_outbuf, term_outbuf_index);
  71         term_outbuf_index = 0;
  72     }
  73 }
  74
  75 /* flush at every end of line or if the buffer is full */
  76 void term_puts(const char *str)
  77 {
  78     int c;
  79     for(;;) {
  80         c = *str++;
  81         if (c == '\0')
  82             break;
  83         term_outbuf[term_outbuf_index++] = c;
  84         if (term_outbuf_index >= sizeof(term_outbuf) ||
  85             c == '\n')
  86             term_flush();
  87     }
  88 }
  89
  90 void term_vprintf(const char *fmt, va_list ap)
  91 {
  92     char buf[4096];
  93     vsnprintf(buf, sizeof(buf), fmt, ap);
  94     term_puts(buf);
  95 }
  96
  97 void term_printf(const char *fmt, ...)
  98 {
  99     va_list ap;
 100     va_start(ap, fmt);
 101     term_vprintf(fmt, ap);
 102     va_end(ap);
 103 }
 104
 105 static int monitor_fprintf(FILE *stream, const char *fmt, ...)
 106 {
 107     va_list ap;
 108     va_start(ap, fmt);
 109     term_vprintf(fmt, ap);
 110     va_end(ap);
 111     return 0;
 112 }
 113
 114 static int compare_cmd(const char *name, const char *list)
 115 {
 116     const char *p, *pstart;
 117     int len;
 118     len = strlen(name);
 119     p = list;
 120     for(;;) {
 121         pstart = p;
 122         p = strchr(p, '|');
 123         if (!p)
 124             p = pstart + strlen(pstart);
 125         if ((p - pstart) == len && !memcmp(pstart, name, len))
 126             return 1;
 127         if (*p == '\0')
 128             break;
 129         p++;
 130     }
 131     return 0;
 132 }
 133
 134 static void help_cmd1(term_cmd_t *cmds, const char *prefix, const char *name)
 135 {
 136     term_cmd_t *cmd;
 137
 138     for(cmd = cmds; cmd->name != NULL; cmd++) {
 139         if (!name || !strcmp(name, cmd->name))
 140             term_printf("%s%s %s -- %s\n", prefix, cmd->name, cmd->params, cmd->help);
 141     }
 142 }
 143
 144 static void help_cmd(const char *name)
 145 {
 146     if (name && !strcmp(name, "info")) {
 147         help_cmd1(info_cmds, "info ", NULL);
 148     } else {
 149         help_cmd1(term_cmds, "", name);
 150         if (name && !strcmp(name, "log")) {
 151             CPULogItem *item;
 152             term_printf("Log items (comma separated):\n");
 153             term_printf("%-10s %s\n", "none", "remove all logs");
 154             for(item = cpu_log_items; item->mask != 0; item++) {
 155                 term_printf("%-10s %s\n", item->name, item->help);
 156             }
 157         }
 158     }
 159 }
 160
 161 static void do_help(const char *name)
 162 {
 163     help_cmd(name);
 164 }
 165
 166 static void do_commit(void)
 167 {
 168     int i;
 169
 170     for (i = 0; i < MAX_DISKS; i++) {
 171         if (bs_table[i]) {
 172             bdrv_commit(bs_table[i]);
 173         }
 174     }
 175 }
 176
 177 static void do_info(const char *item)
 178 {
 179     term_cmd_t *cmd;
 180
 181     if (!item)
 182         goto help;
 183     for(cmd = info_cmds; cmd->name != NULL; cmd++) {
 184         if (compare_cmd(item, cmd->name))
 185             goto found;
 186     }
 187  help:
 188     help_cmd("info");
 189     return;
 190  found:
 191     cmd->handler();
 192 }
 193
 194 static void do_info_version(void)
 195 {
 196   term_printf("%s\n", QEMU_VERSION);
 197 }
 198
 199 static void do_info_network(void)
 200 {
 201     int i, j;
 202     NetDriverState *nd;
 203
 204     for(i = 0; i < nb_nics; i++) {
 205         nd = &nd_table[i];
 206         term_printf("%d: ifname=%s macaddr=", i, nd->ifname);
 207         for(j = 0; j < 6; j++) {
 208             if (j > 0)
 209                 term_printf(":");
 210             term_printf("%02x", nd->macaddr[j]);
 211         }
 212         term_printf("\n");
 213     }
 214 }
 215
 216 static void do_info_block(void)
 217 {
 218     bdrv_info();
 219 }
 220
 221 static void do_info_registers(void)
 222 {
 223 #ifdef TARGET_I386
 224     cpu_dump_state(cpu_single_env, NULL, monitor_fprintf,
 225                    X86_DUMP_FPU | X86_DUMP_CCOP);
 226 #else
 227     cpu_dump_state(cpu_single_env, NULL, monitor_fprintf,
 228                    0);
 229 #endif
 230 }
 231
 232 static void do_info_jit(void)
 233 {
 234     dump_exec_info(NULL, monitor_fprintf);
 235 }
 236
 237 static void do_info_history (void)
 238 {
 239     int i;
 240     const char *str;
 241
 242     i = 0;
 243     for(;;) {
 244         str = readline_get_history(i);
 245         if (!str)
 246             break;
 247         term_printf("%d: '%s'\n", i, str);
 248         i++;
 249     }
 250 }
 251
 252 static void do_quit(void)
 253 {
 254     exit(0);
 255 }
 256
 257 static int eject_device(BlockDriverState *bs, int force)
 258 {
 259     if (bdrv_is_inserted(bs)) {
 260         if (!force) {
 261             if (!bdrv_is_removable(bs)) {
 262                 term_printf("device is not removable\n");
 263                 return -1;
 264             }
 265             if (bdrv_is_locked(bs)) {
 266                 term_printf("device is locked\n");
 267                 return -1;
 268             }
 269         }
 270         bdrv_close(bs);
 271     }
 272     return 0;
 273 }
 274
 275 static void do_eject(int force, const char *filename)
 276 {
 277     BlockDriverState *bs;
 278
 279     bs = bdrv_find(filename);
 280     if (!bs) {
 281         term_printf("device not found\n");
 282         return;
 283     }
 284     eject_device(bs, force);
 285 }
 286
 287 static void do_change(const char *device, const char *filename)
 288 {
 289     BlockDriverState *bs;
 290     int i;
 291     char password[256];
 292
 293     bs = bdrv_find(device);
 294     if (!bs) {
 295         term_printf("device not found\n");
 296         return;
 297     }
 298     if (eject_device(bs, 0) < 0)
 299         return;
 300     bdrv_open(bs, filename, 0);
 301     if (bdrv_is_encrypted(bs)) {
 302         term_printf("%s is encrypted.\n", device);
 303         for(i = 0; i < 3; i++) {
 304             monitor_readline("Password: ", 1, password, sizeof(password));
 305             if (bdrv_set_key(bs, password) == 0)
 306                 break;
 307             term_printf("invalid password\n");
 308         }
 309     }
 310 }
 311
 312 static void do_screen_dump(const char *filename)
 313 {
 314     vga_screen_dump(filename);
 315 }
 316
 317 static void do_log(const char *items)
 318 {
 319     int mask;
 320
 321     if (!strcmp(items, "none")) {
 322         mask = 0;
 323     } else {
 324         mask = cpu_str_to_log_mask(items);
 325         if (!mask) {
 326             help_cmd("log");
 327             return;
 328         }
 329     }
 330     cpu_set_log(mask);
 331 }
 332
 333 static void do_savevm(const char *filename)
 334 {
 335     if (qemu_savevm(filename) < 0)
 336         term_printf("I/O error when saving VM to '%s'\n", filename);
 337 }
 338
 339 static void do_loadvm(const char *filename)
 340 {
 341     if (qemu_loadvm(filename) < 0)
 342         term_printf("I/O error when loading VM from '%s'\n", filename);
 343 }
 344
 345 static void do_stop(void)
 346 {
 347     vm_stop(EXCP_INTERRUPT);
 348 }
 349
 350 static void do_cont(void)
 351 {
 352     vm_start();
 353 }
 354
 355 #ifdef CONFIG_GDBSTUB
 356 static void do_gdbserver(int has_port, int port)
 357 {
 358     if (!has_port)
 359         port = DEFAULT_GDBSTUB_PORT;
 360     if (gdbserver_start(port) < 0) {
 361         qemu_printf("Could not open gdbserver socket on port %d\n", port);
 362     } else {
 363         qemu_printf("Waiting gdb connection on port %d\n", port);
 364     }
 365 }
 366 #endif
 367
 368 static void term_printc(int c)
 369 {
 370     term_printf("'");
 371     switch(c) {
 372     case '\'':
 373         term_printf("\\'");
 374         break;
 375     case '\\':
 376         term_printf("\\\\");
 377         break;
 378     case '\n':
 379         term_printf("\\n");
 380         break;
 381     case '\r':
 382         term_printf("\\r");
 383         break;
 384     default:
 385         if (c >= 32 && c <= 126) {
 386             term_printf("%c", c);
 387         } else {
 388             term_printf("\\x%02x", c);
 389         }
 390         break;
 391     }
 392     term_printf("'");
 393 }
 394
 395 static void memory_dump(int count, int format, int wsize,
 396                         target_ulong addr, int is_physical)
 397 {
 398     int nb_per_line, l, line_size, i, max_digits, len;
 399     uint8_t buf[16];
 400     uint64_t v;
 401
 402     if (format == 'i') {
 403         int flags;
 404         flags = 0;
 405 #ifdef TARGET_I386
 406         if (wsize == 2) {
 407             flags = 1;
 408         } else if (wsize == 4) {
 409             flags = 0;
 410         } else {
 411             /* as default we use the current CS size */
 412             flags = 0;
 413             if (!(cpu_single_env->segs[R_CS].flags & DESC_B_MASK))
 414                 flags = 1;
 415         }
 416 #endif
 417         monitor_disas(addr, count, is_physical, flags);
 418         return;
 419     }
 420
 421     len = wsize * count;
 422     if (wsize == 1)
 423         line_size = 8;
 424     else
 425         line_size = 16;
 426     nb_per_line = line_size / wsize;
 427     max_digits = 0;
 428
 429     switch(format) {
 430     case 'o':
 431         max_digits = (wsize * 8 + 2) / 3;
 432         break;
 433     default:
 434     case 'x':
 435         max_digits = (wsize * 8) / 4;
 436         break;
 437     case 'u':
 438     case 'd':
 439         max_digits = (wsize * 8 * 10 + 32) / 33;
 440         break;
 441     case 'c':
 442         wsize = 1;
 443         break;
 444     }
 445
 446     while (len > 0) {
 447         term_printf(TARGET_FMT_lx ":", addr);
 448         l = len;
 449         if (l > line_size)
 450             l = line_size;
 451         if (is_physical) {
 452             cpu_physical_memory_rw(addr, buf, l, 0);
 453         } else {
 454             cpu_memory_rw_debug(cpu_single_env, addr, buf, l, 0);
 455         }
 456         i = 0;
 457         while (i < l) {
 458             switch(wsize) {
 459             default:
 460             case 1:
 461                 v = ldub_raw(buf + i);
 462                 break;
 463             case 2:
 464                 v = lduw_raw(buf + i);
 465                 break;
 466             case 4:
 467                 v = (uint32_t)ldl_raw(buf + i);
 468                 break;
 469             case 8:
 470                 v = ldq_raw(buf + i);
 471                 break;
 472             }
 473             term_printf(" ");
 474             switch(format) {
 475             case 'o':
 476                 term_printf("%#*llo", max_digits, v);
 477                 break;
 478             case 'x':
 479                 term_printf("0x%0*llx", max_digits, v);
 480                 break;
 481             case 'u':
 482                 term_printf("%*llu", max_digits, v);
 483                 break;
 484             case 'd':
 485                 term_printf("%*lld", max_digits, v);
 486                 break;
 487             case 'c':
 488                 term_printc(v);
 489                 break;
 490             }
 491             i += wsize;
 492         }
 493         term_printf("\n");
 494         addr += l;
 495         len -= l;
 496     }
 497 }
 498
 499 #if TARGET_LONG_BITS == 64
 500 #define GET_TLONG(h, l) (((uint64_t)(h) << 32) | (l))
 501 #else
 502 #define GET_TLONG(h, l) (l)
 503 #endif
 504
 505 static void do_memory_dump(int count, int format, int size,
 506                            uint32_t addrh, uint32_t addrl)
 507 {
 508     target_long addr = GET_TLONG(addrh, addrl);
 509     memory_dump(count, format, size, addr, 0);
 510 }
 511
 512 static void do_physical_memory_dump(int count, int format, int size,
 513                                     uint32_t addrh, uint32_t addrl)
 514
 515 {
 516     target_long addr = GET_TLONG(addrh, addrl);
 517     memory_dump(count, format, size, addr, 1);
 518 }
 519
 520 static void do_print(int count, int format, int size, unsigned int valh, unsigned int vall)
 521 {
 522     target_long val = GET_TLONG(valh, vall);
 523 #if TARGET_LONG_BITS == 32
 524     switch(format) {
 525     case 'o':
 526         term_printf("%#o", val);
 527         break;
 528     case 'x':
 529         term_printf("%#x", val);
 530         break;
 531     case 'u':
 532         term_printf("%u", val);
 533         break;
 534     default:
 535     case 'd':
 536         term_printf("%d", val);
 537         break;
 538     case 'c':
 539         term_printc(val);
 540         break;
 541     }
 542 #else
 543     switch(format) {
 544     case 'o':
 545         term_printf("%#llo", val);
 546         break;
 547     case 'x':
 548         term_printf("%#llx", val);
 549         break;
 550     case 'u':
 551         term_printf("%llu", val);
 552         break;
 553     default:
 554     case 'd':
 555         term_printf("%lld", val);
 556         break;
 557     case 'c':
 558         term_printc(val);
 559         break;
 560     }
 561 #endif
 562     term_printf("\n");
 563 }
 564
 565 typedef struct {
 566     int keycode;
 567     const char *name;
 568 } KeyDef;
 569
 570 static const KeyDef key_defs[] = {
 571     { 0x2a, "shift" },
 572     { 0x36, "shift_r" },
 573
 574     { 0x38, "alt" },
 575     { 0xb8, "alt_r" },
 576     { 0x1d, "ctrl" },
 577     { 0x9d, "ctrl_r" },
 578
 579     { 0xdd, "menu" },
 580
 581     { 0x01, "esc" },
 582
 583     { 0x02, "1" },
 584     { 0x03, "2" },
 585     { 0x04, "3" },
 586     { 0x05, "4" },
 587     { 0x06, "5" },
 588     { 0x07, "6" },
 589     { 0x08, "7" },
 590     { 0x09, "8" },
 591     { 0x0a, "9" },
 592     { 0x0b, "0" },
 593     { 0x0e, "backspace" },
 594
 595     { 0x0f, "tab" },
 596     { 0x10, "q" },
 597     { 0x11, "w" },
 598     { 0x12, "e" },
 599     { 0x13, "r" },
 600     { 0x14, "t" },
 601     { 0x15, "y" },
 602     { 0x16, "u" },
 603     { 0x17, "i" },
 604     { 0x18, "o" },
 605     { 0x19, "p" },
 606
 607     { 0x1c, "ret" },
 608
 609     { 0x1e, "a" },
 610     { 0x1f, "s" },
 611     { 0x20, "d" },
 612     { 0x21, "f" },
 613     { 0x22, "g" },
 614     { 0x23, "h" },
 615     { 0x24, "j" },
 616     { 0x25, "k" },
 617     { 0x26, "l" },
 618
 619     { 0x2c, "z" },
 620     { 0x2d, "x" },
 621     { 0x2e, "c" },
 622     { 0x2f, "v" },
 623     { 0x30, "b" },
 624     { 0x31, "n" },
 625     { 0x32, "m" },
 626
 627     { 0x39, "spc" },
 628     { 0x3a, "caps_lock" },
 629     { 0x3b, "f1" },
 630     { 0x3c, "f2" },
 631     { 0x3d, "f3" },
 632     { 0x3e, "f4" },
 633     { 0x3f, "f5" },
 634     { 0x40, "f6" },
 635     { 0x41, "f7" },
 636     { 0x42, "f8" },
 637     { 0x43, "f9" },
 638     { 0x44, "f10" },
 639     { 0x45, "num_lock" },
 640     { 0x46, "scroll_lock" },
 641
 642     { 0x56, "<" },
 643
 644     { 0x57, "f11" },
 645     { 0x58, "f12" },
 646
 647     { 0xb7, "print" },
 648
 649     { 0xc7, "home" },
 650     { 0xc9, "pgup" },
 651     { 0xd1, "pgdn" },
 652     { 0xcf, "end" },
 653
 654     { 0xcb, "left" },
 655     { 0xc8, "up" },
 656     { 0xd0, "down" },
 657     { 0xcd, "right" },
 658
 659     { 0xd2, "insert" },
 660     { 0xd3, "delete" },
 661     { 0, NULL },
 662 };
 663
 664 static int get_keycode(const char *key)
 665 {
 666     const KeyDef *p;
 667
 668     for(p = key_defs; p->name != NULL; p++) {
 669         if (!strcmp(key, p->name))
 670             return p->keycode;
 671     }
 672     return -1;
 673 }
 674
 675 static void do_send_key(const char *string)
 676 {
 677     char keybuf[16], *q;
 678     uint8_t keycodes[16];
 679     const char *p;
 680     int nb_keycodes, keycode, i;
 681
 682     nb_keycodes = 0;
 683     p = string;
 684     while (*p != '\0') {
 685         q = keybuf;
 686         while (*p != '\0' && *p != '-') {
 687             if ((q - keybuf) < sizeof(keybuf) - 1) {
 688                 *q++ = *p;
 689             }
 690             p++;
 691         }
 692         *q = '\0';
 693         keycode = get_keycode(keybuf);
 694         if (keycode < 0) {
 695             term_printf("unknown key: '%s'\n", keybuf);
 696             return;
 697         }
 698         keycodes[nb_keycodes++] = keycode;
 699         if (*p == '\0')
 700             break;
 701         p++;
 702     }
 703     /* key down events */
 704     for(i = 0; i < nb_keycodes; i++) {
 705         keycode = keycodes[i];
 706         if (keycode & 0x80)
 707             kbd_put_keycode(0xe0);
 708         kbd_put_keycode(keycode & 0x7f);
 709     }
 710     /* key up events */
 711     for(i = nb_keycodes - 1; i >= 0; i--) {
 712         keycode = keycodes[i];
 713         if (keycode & 0x80)
 714             kbd_put_keycode(0xe0);
 715         kbd_put_keycode(keycode | 0x80);
 716     }
 717 }
 718
 719 static void do_ioport_read(int count, int format, int size, int addr, int has_index, int index)
 720 {
 721     uint32_t val;
 722     int suffix;
 723
 724     if (has_index) {
 725         cpu_outb(NULL, addr & 0xffff, index & 0xff);
 726         addr++;
 727     }
 728     addr &= 0xffff;
 729
 730     switch(size) {
 731     default:
 732     case 1:
 733         val = cpu_inb(NULL, addr);
 734         suffix = 'b';
 735         break;
 736     case 2:
 737         val = cpu_inw(NULL, addr);
 738         suffix = 'w';
 739         break;
 740     case 4:
 741         val = cpu_inl(NULL, addr);
 742         suffix = 'l';
 743         break;
 744     }
 745     term_printf("port%c[0x%04x] = %#0*x\n",
 746                 suffix, addr, size * 2, val);
 747 }
 748
 749 static void do_system_reset(void)
 750 {
 751     qemu_system_reset_request();
 752 }
 753
 754 #if defined(TARGET_I386)
 755 static void print_pte(uint32_t addr, uint32_t pte, uint32_t mask)
 756 {
 757     term_printf("%08x: %08x %c%c%c%c%c%c%c%c\n",
 758                 addr,
 759                 pte & mask,
 760                 pte & PG_GLOBAL_MASK ? 'G' : '-',
 761                 pte & PG_PSE_MASK ? 'P' : '-',
 762                 pte & PG_DIRTY_MASK ? 'D' : '-',
 763                 pte & PG_ACCESSED_MASK ? 'A' : '-',
 764                 pte & PG_PCD_MASK ? 'C' : '-',
 765                 pte & PG_PWT_MASK ? 'T' : '-',
 766                 pte & PG_USER_MASK ? 'U' : '-',
 767                 pte & PG_RW_MASK ? 'W' : '-');
 768 }
 769
 770 static void tlb_info(void)
 771 {
 772     CPUState *env = cpu_single_env;
 773     int l1, l2;
 774     uint32_t pgd, pde, pte;
 775
 776     if (!(env->cr[0] & CR0_PG_MASK)) {
 777         term_printf("PG disabled\n");
 778         return;
 779     }
 780     pgd = env->cr[3] & ~0xfff;
 781     for(l1 = 0; l1 < 1024; l1++) {
 782         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
 783         pde = le32_to_cpu(pde);
 784         if (pde & PG_PRESENT_MASK) {
 785             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
 786                 print_pte((l1 << 22), pde, ~((1 << 20) - 1));
 787             } else {
 788                 for(l2 = 0; l2 < 1024; l2++) {
 789                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
 790                                              (uint8_t *)&pte, 4);
 791                     pte = le32_to_cpu(pte);
 792                     if (pte & PG_PRESENT_MASK) {
 793                         print_pte((l1 << 22) + (l2 << 12),
 794                                   pte & ~PG_PSE_MASK,
 795                                   ~0xfff);
 796                     }
 797                 }
 798             }
 799         }
 800     }
 801 }
 802
 803 static void mem_print(uint32_t *pstart, int *plast_prot,
 804                       uint32_t end, int prot)
 805 {
 806     int prot1;
 807     prot1 = *plast_prot;
 808     if (prot != prot1) {
 809         if (*pstart != -1) {
 810             term_printf("%08x-%08x %08x %c%c%c\n",
 811                         *pstart, end, end - *pstart,
 812                         prot1 & PG_USER_MASK ? 'u' : '-',
 813                         'r',
 814                         prot1 & PG_RW_MASK ? 'w' : '-');
 815         }
 816         if (prot != 0)
 817             *pstart = end;
 818         else
 819             *pstart = -1;
 820         *plast_prot = prot;
 821     }
 822 }
 823
 824 static void mem_info(void)
 825 {
 826     CPUState *env = cpu_single_env;
 827     int l1, l2, prot, last_prot;
 828     uint32_t pgd, pde, pte, start, end;
 829
 830     if (!(env->cr[0] & CR0_PG_MASK)) {
 831         term_printf("PG disabled\n");
 832         return;
 833     }
 834     pgd = env->cr[3] & ~0xfff;
 835     last_prot = 0;
 836     start = -1;
 837     for(l1 = 0; l1 < 1024; l1++) {
 838         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
 839         pde = le32_to_cpu(pde);
 840         end = l1 << 22;
 841         if (pde & PG_PRESENT_MASK) {
 842             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
 843                 prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
 844                 mem_print(&start, &last_prot, end, prot);
 845             } else {
 846                 for(l2 = 0; l2 < 1024; l2++) {
 847                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
 848                                              (uint8_t *)&pte, 4);
 849                     pte = le32_to_cpu(pte);
 850                     end = (l1 << 22) + (l2 << 12);
 851                     if (pte & PG_PRESENT_MASK) {
 852                         prot = pte & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
 853                     } else {
 854                         prot = 0;
 855                     }
 856                     mem_print(&start, &last_prot, end, prot);
 857                 }
 858             }
 859         } else {
 860             prot = 0;
 861             mem_print(&start, &last_prot, end, prot);
 862         }
 863     }
 864 }
 865 #endif
 866
 867 static term_cmd_t term_cmds[] = {
 868     { "help|?", "s?", do_help,
 869       "[cmd]", "show the help" },
 870     { "commit", "", do_commit,
 871       "", "commit changes to the disk images (if -snapshot is used)" },
 872     { "info", "s?", do_info,
 873       "subcommand", "show various information about the system state" },
 874     { "q|quit", "", do_quit,
 875       "", "quit the emulator" },
 876     { "eject", "-fB", do_eject,
 877       "[-f] device", "eject a removable media (use -f to force it)" },
 878     { "change", "BF", do_change,
 879       "device filename", "change a removable media" },
 880     { "screendump", "F", do_screen_dump,
 881       "filename", "save screen into PPM image 'filename'" },
 882     { "log", "s", do_log,
 883       "item1[,...]", "activate logging of the specified items to '/tmp/qemu.log'" },
 884     { "savevm", "F", do_savevm,
 885       "filename", "save the whole virtual machine state to 'filename'" },
 886     { "loadvm", "F", do_loadvm,
 887       "filename", "restore the whole virtual machine state from 'filename'" },
 888     { "stop", "", do_stop,
 889       "", "stop emulation", },
 890     { "c|cont", "", do_cont,
 891       "", "resume emulation", },
 892 #ifdef CONFIG_GDBSTUB
 893     { "gdbserver", "i?", do_gdbserver,
 894       "[port]", "start gdbserver session (default port=1234)", },
 895 #endif
 896     { "x", "/l", do_memory_dump,
 897       "/fmt addr", "virtual memory dump starting at 'addr'", },
 898     { "xp", "/l", do_physical_memory_dump,
 899       "/fmt addr", "physical memory dump starting at 'addr'", },
 900     { "p|print", "/l", do_print,
 901       "/fmt expr", "print expression value (use $reg for CPU register access)", },
 902     { "i", "/ii.", do_ioport_read,
 903       "/fmt addr", "I/O port read" },
 904
 905     { "sendkey", "s", do_send_key,
 906       "keys", "send keys to the VM (e.g. 'sendkey ctrl-alt-f1')" },
 907     { "system_reset", "", do_system_reset,
 908       "", "reset the system" },
 909     { NULL, NULL, },
 910 };
 911
 912 static term_cmd_t info_cmds[] = {
 913     { "version", "", do_info_version,
 914       "", "show the version of qemu" },
 915     { "network", "", do_info_network,
 916       "", "show the network state" },
 917     { "block", "", do_info_block,
 918       "", "show the block devices" },
 919     { "registers", "", do_info_registers,
 920       "", "show the cpu registers" },
 921     { "history", "", do_info_history,
 922       "", "show the command line history", },
 923     { "irq", "", irq_info,
 924       "", "show the interrupts statistics (if available)", },
 925     { "pic", "", pic_info,
 926       "", "show i8259 (PIC) state", },
 927     { "pci", "", pci_info,
 928       "", "show PCI info", },
 929 #if defined(TARGET_I386)
 930     { "tlb", "", tlb_info,
 931       "", "show virtual to physical memory mappings", },
 932     { "mem", "", mem_info,
 933       "", "show the active virtual memory mappings", },
 934 #endif
 935     { "jit", "", do_info_jit,
 936       "", "show dynamic compiler info", },
 937     { NULL, NULL, },
 938 };
 939
 940 /*******************************************************************/
 941
 942 static const char *pch;
 943 static jmp_buf expr_env;
 944
 945 #define MD_TLONG 0
 946 #define MD_I32   1
 947
 948 typedef struct MonitorDef {
 949     const char *name;
 950     int offset;
 951     target_long (*get_value)(struct MonitorDef *md, int val);
 952     int type;
 953 } MonitorDef;
 954
 955 #if defined(TARGET_I386)
 956 static target_long monitor_get_pc (struct MonitorDef *md, int val)
 957 {
 958     return cpu_single_env->eip + cpu_single_env->segs[R_CS].base;
 959 }
 960 #endif
 961
 962 #if defined(TARGET_PPC)
 963 static target_long monitor_get_ccr (struct MonitorDef *md, int val)
 964 {
 965     unsigned int u;
 966     int i;
 967
 968     u = 0;
 969     for (i = 0; i < 8; i++)
 970         u |= cpu_single_env->crf[i] << (32 - (4 * i));
 971
 972     return u;
 973 }
 974
 975 static target_long monitor_get_msr (struct MonitorDef *md, int val)
 976 {
 977     return (cpu_single_env->msr[MSR_POW] << MSR_POW) |
 978         (cpu_single_env->msr[MSR_ILE] << MSR_ILE) |
 979         (cpu_single_env->msr[MSR_EE] << MSR_EE) |
 980         (cpu_single_env->msr[MSR_PR] << MSR_PR) |
 981         (cpu_single_env->msr[MSR_FP] << MSR_FP) |
 982         (cpu_single_env->msr[MSR_ME] << MSR_ME) |
 983         (cpu_single_env->msr[MSR_FE0] << MSR_FE0) |
 984         (cpu_single_env->msr[MSR_SE] << MSR_SE) |
 985         (cpu_single_env->msr[MSR_BE] << MSR_BE) |
 986         (cpu_single_env->msr[MSR_FE1] << MSR_FE1) |
 987         (cpu_single_env->msr[MSR_IP] << MSR_IP) |
 988         (cpu_single_env->msr[MSR_IR] << MSR_IR) |
 989         (cpu_single_env->msr[MSR_DR] << MSR_DR) |
 990         (cpu_single_env->msr[MSR_RI] << MSR_RI) |
 991         (cpu_single_env->msr[MSR_LE] << MSR_LE);
 992 }
 993
 994 static target_long monitor_get_xer (struct MonitorDef *md, int val)
 995 {
 996     return (cpu_single_env->xer[XER_SO] << XER_SO) |
 997         (cpu_single_env->xer[XER_OV] << XER_OV) |
 998         (cpu_single_env->xer[XER_CA] << XER_CA) |
 999         (cpu_single_env->xer[XER_BC] << XER_BC);
1000 }
1001
1002 static target_long monitor_get_decr (struct MonitorDef *md, int val)
1003 {
1004     return cpu_ppc_load_decr(cpu_single_env);
1005 }
1006
1007 static target_long monitor_get_tbu (struct MonitorDef *md, int val)
1008 {
1009     return cpu_ppc_load_tbu(cpu_single_env);
1010 }
1011
1012 static target_long monitor_get_tbl (struct MonitorDef *md, int val)
1013 {
1014     return cpu_ppc_load_tbl(cpu_single_env);
1015 }
1016 #endif
1017
1018 #if defined(TARGET_SPARC)
1019 static target_long monitor_get_psr (struct MonitorDef *md, int val)
1020 {
1021     return GET_PSR(cpu_single_env);
1022 }
1023
1024 static target_long monitor_get_reg(struct MonitorDef *md, int val)
1025 {
1026     return cpu_single_env->regwptr[val];
1027 }
1028 #endif
1029
1030 static MonitorDef monitor_defs[] = {
1031 #ifdef TARGET_I386
1032
1033 #define SEG(name, seg) \
1034     { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
1035     { name ".base", offsetof(CPUState, segs[seg].base) },\
1036     { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },
1037
1038     { "eax", offsetof(CPUState, regs[0]) },
1039     { "ecx", offsetof(CPUState, regs[1]) },
1040     { "edx", offsetof(CPUState, regs[2]) },
1041     { "ebx", offsetof(CPUState, regs[3]) },
1042     { "esp|sp", offsetof(CPUState, regs[4]) },
1043     { "ebp|fp", offsetof(CPUState, regs[5]) },
1044     { "esi", offsetof(CPUState, regs[6]) },
1045     { "edi", offsetof(CPUState, regs[7]) },
1046 #ifdef TARGET_X86_64
1047     { "r8", offsetof(CPUState, regs[8]) },
1048     { "r9", offsetof(CPUState, regs[9]) },
1049     { "r10", offsetof(CPUState, regs[10]) },
1050     { "r11", offsetof(CPUState, regs[11]) },
1051     { "r12", offsetof(CPUState, regs[12]) },
1052     { "r13", offsetof(CPUState, regs[13]) },
1053     { "r14", offsetof(CPUState, regs[14]) },
1054     { "r15", offsetof(CPUState, regs[15]) },
1055 #endif
1056     { "eflags", offsetof(CPUState, eflags) },
1057     { "eip", offsetof(CPUState, eip) },
1058     SEG("cs", R_CS)
1059     SEG("ds", R_DS)
1060     SEG("es", R_ES)
1061     SEG("ss", R_SS)
1062     SEG("fs", R_FS)
1063     SEG("gs", R_GS)
1064     { "pc", 0, monitor_get_pc, },
1065 #elif defined(TARGET_PPC)
1066     { "r0", offsetof(CPUState, gpr[0]) },
1067     { "r1", offsetof(CPUState, gpr[1]) },
1068     { "r2", offsetof(CPUState, gpr[2]) },
1069     { "r3", offsetof(CPUState, gpr[3]) },
1070     { "r4", offsetof(CPUState, gpr[4]) },
1071     { "r5", offsetof(CPUState, gpr[5]) },
1072     { "r6", offsetof(CPUState, gpr[6]) },
1073     { "r7", offsetof(CPUState, gpr[7]) },
1074     { "r8", offsetof(CPUState, gpr[8]) },
1075     { "r9", offsetof(CPUState, gpr[9]) },
1076     { "r10", offsetof(CPUState, gpr[10]) },
1077     { "r11", offsetof(CPUState, gpr[11]) },
1078     { "r12", offsetof(CPUState, gpr[12]) },
1079     { "r13", offsetof(CPUState, gpr[13]) },
1080     { "r14", offsetof(CPUState, gpr[14]) },
1081     { "r15", offsetof(CPUState, gpr[15]) },
1082     { "r16", offsetof(CPUState, gpr[16]) },
1083     { "r17", offsetof(CPUState, gpr[17]) },
1084     { "r18", offsetof(CPUState, gpr[18]) },
1085     { "r19", offsetof(CPUState, gpr[19]) },
1086     { "r20", offsetof(CPUState, gpr[20]) },
1087     { "r21", offsetof(CPUState, gpr[21]) },
1088     { "r22", offsetof(CPUState, gpr[22]) },
1089     { "r23", offsetof(CPUState, gpr[23]) },
1090     { "r24", offsetof(CPUState, gpr[24]) },
1091     { "r25", offsetof(CPUState, gpr[25]) },
1092     { "r26", offsetof(CPUState, gpr[26]) },
1093     { "r27", offsetof(CPUState, gpr[27]) },
1094     { "r28", offsetof(CPUState, gpr[28]) },
1095     { "r29", offsetof(CPUState, gpr[29]) },
1096     { "r30", offsetof(CPUState, gpr[30]) },
1097     { "r31", offsetof(CPUState, gpr[31]) },
1098     { "nip|pc", offsetof(CPUState, nip) },
1099     { "lr", offsetof(CPUState, lr) },
1100     { "ctr", offsetof(CPUState, ctr) },
1101     { "decr", 0, &monitor_get_decr, },
1102     { "ccr", 0, &monitor_get_ccr, },
1103     { "msr", 0, &monitor_get_msr, },
1104     { "xer", 0, &monitor_get_xer, },
1105     { "tbu", 0, &monitor_get_tbu, },
1106     { "tbl", 0, &monitor_get_tbl, },
1107     { "sdr1", offsetof(CPUState, sdr1) },
1108     { "sr0", offsetof(CPUState, sr[0]) },
1109     { "sr1", offsetof(CPUState, sr[1]) },
1110     { "sr2", offsetof(CPUState, sr[2]) },
1111     { "sr3", offsetof(CPUState, sr[3]) },
1112     { "sr4", offsetof(CPUState, sr[4]) },
1113     { "sr5", offsetof(CPUState, sr[5]) },
1114     { "sr6", offsetof(CPUState, sr[6]) },
1115     { "sr7", offsetof(CPUState, sr[7]) },
1116     { "sr8", offsetof(CPUState, sr[8]) },
1117     { "sr9", offsetof(CPUState, sr[9]) },
1118     { "sr10", offsetof(CPUState, sr[10]) },
1119     { "sr11", offsetof(CPUState, sr[11]) },
1120     { "sr12", offsetof(CPUState, sr[12]) },
1121     { "sr13", offsetof(CPUState, sr[13]) },
1122     { "sr14", offsetof(CPUState, sr[14]) },
1123     { "sr15", offsetof(CPUState, sr[15]) },
1124     /* Too lazy to put BATs and SPRs ... */
1125 #elif defined(TARGET_SPARC)
1126     { "g0", offsetof(CPUState, gregs[0]) },
1127     { "g1", offsetof(CPUState, gregs[1]) },
1128     { "g2", offsetof(CPUState, gregs[2]) },
1129     { "g3", offsetof(CPUState, gregs[3]) },
1130     { "g4", offsetof(CPUState, gregs[4]) },
1131     { "g5", offsetof(CPUState, gregs[5]) },
1132     { "g6", offsetof(CPUState, gregs[6]) },
1133     { "g7", offsetof(CPUState, gregs[7]) },
1134     { "o0", 0, monitor_get_reg },
1135     { "o1", 1, monitor_get_reg },
1136     { "o2", 2, monitor_get_reg },
1137     { "o3", 3, monitor_get_reg },
1138     { "o4", 4, monitor_get_reg },
1139     { "o5", 5, monitor_get_reg },
1140     { "o6", 6, monitor_get_reg },
1141     { "o7", 7, monitor_get_reg },
1142     { "l0", 8, monitor_get_reg },
1143     { "l1", 9, monitor_get_reg },
1144     { "l2", 10, monitor_get_reg },
1145     { "l3", 11, monitor_get_reg },
1146     { "l4", 12, monitor_get_reg },
1147     { "l5", 13, monitor_get_reg },
1148     { "l6", 14, monitor_get_reg },
1149     { "l7", 15, monitor_get_reg },
1150     { "i0", 16, monitor_get_reg },
1151     { "i1", 17, monitor_get_reg },
1152     { "i2", 18, monitor_get_reg },
1153     { "i3", 19, monitor_get_reg },
1154     { "i4", 20, monitor_get_reg },
1155     { "i5", 21, monitor_get_reg },
1156     { "i6", 22, monitor_get_reg },
1157     { "i7", 23, monitor_get_reg },
1158     { "pc", offsetof(CPUState, pc) },
1159     { "npc", offsetof(CPUState, npc) },
1160     { "y", offsetof(CPUState, y) },
1161     { "psr", 0, &monitor_get_psr, },
1162     { "wim", offsetof(CPUState, wim) },
1163     { "tbr", offsetof(CPUState, tbr) },
1164     { "fsr", offsetof(CPUState, fsr) },
1165     { "f0", offsetof(CPUState, fpr[0]) },
1166     { "f1", offsetof(CPUState, fpr[1]) },
1167     { "f2", offsetof(CPUState, fpr[2]) },
1168     { "f3", offsetof(CPUState, fpr[3]) },
1169     { "f4", offsetof(CPUState, fpr[4]) },
1170     { "f5", offsetof(CPUState, fpr[5]) },
1171     { "f6", offsetof(CPUState, fpr[6]) },
1172     { "f7", offsetof(CPUState, fpr[7]) },
1173     { "f8", offsetof(CPUState, fpr[8]) },
1174     { "f9", offsetof(CPUState, fpr[9]) },
1175     { "f10", offsetof(CPUState, fpr[10]) },
1176     { "f11", offsetof(CPUState, fpr[11]) },
1177     { "f12", offsetof(CPUState, fpr[12]) },
1178     { "f13", offsetof(CPUState, fpr[13]) },
1179     { "f14", offsetof(CPUState, fpr[14]) },
1180     { "f15", offsetof(CPUState, fpr[15]) },
1181     { "f16", offsetof(CPUState, fpr[16]) },
1182     { "f17", offsetof(CPUState, fpr[17]) },
1183     { "f18", offsetof(CPUState, fpr[18]) },
1184     { "f19", offsetof(CPUState, fpr[19]) },
1185     { "f20", offsetof(CPUState, fpr[20]) },
1186     { "f21", offsetof(CPUState, fpr[21]) },
1187     { "f22", offsetof(CPUState, fpr[22]) },
1188     { "f23", offsetof(CPUState, fpr[23]) },
1189     { "f24", offsetof(CPUState, fpr[24]) },
1190     { "f25", offsetof(CPUState, fpr[25]) },
1191     { "f26", offsetof(CPUState, fpr[26]) },
1192     { "f27", offsetof(CPUState, fpr[27]) },
1193     { "f28", offsetof(CPUState, fpr[28]) },
1194     { "f29", offsetof(CPUState, fpr[29]) },
1195     { "f30", offsetof(CPUState, fpr[30]) },
1196     { "f31", offsetof(CPUState, fpr[31]) },
1197 #endif
1198     { NULL },
1199 };
1200
1201 static void expr_error(const char *fmt)
1202 {
1203     term_printf(fmt);
1204     term_printf("\n");
1205     longjmp(expr_env, 1);
1206 }
1207
1208 static int get_monitor_def(target_long *pval, const char *name)
1209 {
1210     MonitorDef *md;
1211     void *ptr;
1212
1213     for(md = monitor_defs; md->name != NULL; md++) {
1214         if (compare_cmd(name, md->name)) {
1215             if (md->get_value) {
1216                 *pval = md->get_value(md, md->offset);
1217             } else {
1218                 ptr = (uint8_t *)cpu_single_env + md->offset;
1219                 switch(md->type) {
1220                 case MD_I32:
1221                     *pval = *(int32_t *)ptr;
1222                     break;
1223                 case MD_TLONG:
1224                     *pval = *(target_long *)ptr;
1225                     break;
1226                 default:
1227                     *pval = 0;
1228                     break;
1229                 }
1230             }
1231             return 0;
1232         }
1233     }
1234     return -1;
1235 }
1236
1237 static void next(void)
1238 {
1239     if (pch != '\0') {
1240         pch++;
1241         while (isspace(*pch))
1242             pch++;
1243     }
1244 }
1245
1246 static target_long expr_sum(void);
1247
1248 static target_long expr_unary(void)
1249 {
1250     target_long n;
1251     char *p;
1252
1253     switch(*pch) {
1254     case '+':
1255         next();
1256         n = expr_unary();
1257         break;
1258     case '-':
1259         next();
1260         n = -expr_unary();
1261         break;
1262     case '~':
1263         next();
1264         n = ~expr_unary();
1265         break;
1266     case '(':
1267         next();
1268         n = expr_sum();
1269         if (*pch != ')') {
1270             expr_error("')' expected");
1271         }
1272         next();
1273         break;
1274     case '\'':
1275         pch++;
1276         if (*pch == '\0')
1277             expr_error("character constant expected");
1278         n = *pch;
1279         pch++;
1280         if (*pch != '\'')
1281             expr_error("missing terminating \' character");
1282         next();
1283         break;
1284     case '$':
1285         {
1286             char buf[128], *q;
1287
1288             pch++;
1289             q = buf;
1290             while ((*pch >= 'a' && *pch <= 'z') ||
1291                    (*pch >= 'A' && *pch <= 'Z') ||
1292                    (*pch >= '0' && *pch <= '9') ||
1293                    *pch == '_' || *pch == '.') {
1294                 if ((q - buf) < sizeof(buf) - 1)
1295                     *q++ = *pch;
1296                 pch++;
1297             }
1298             while (isspace(*pch))
1299                 pch++;
1300             *q = 0;
1301             if (get_monitor_def(&n, buf))
1302                 expr_error("unknown register");
1303         }
1304         break;
1305     case '\0':
1306         expr_error("unexpected end of expression");
1307         n = 0;
1308         break;
1309     default:
1310         n = strtoul(pch, &p, 0);
1311         if (pch == p) {
1312             expr_error("invalid char in expression");
1313         }
1314         pch = p;
1315         while (isspace(*pch))
1316             pch++;
1317         break;
1318     }
1319     return n;
1320 }
1321
1322
1323 static target_long expr_prod(void)
1324 {
1325     target_long val, val2;
1326     int op;
1327
1328     val = expr_unary();
1329     for(;;) {
1330         op = *pch;
1331         if (op != '*' && op != '/' && op != '%')
1332             break;
1333         next();
1334         val2 = expr_unary();
1335         switch(op) {
1336         default:
1337         case '*':
1338             val *= val2;
1339             break;
1340         case '/':
1341         case '%':
1342             if (val2 == 0)
1343                 expr_error("division by zero");
1344             if (op == '/')
1345                 val /= val2;
1346             else
1347                 val %= val2;
1348             break;
1349         }
1350     }
1351     return val;
1352 }
1353
1354 static target_long expr_logic(void)
1355 {
1356     target_long val, val2;
1357     int op;
1358
1359     val = expr_prod();
1360     for(;;) {
1361         op = *pch;
1362         if (op != '&' && op != '|' && op != '^')
1363             break;
1364         next();
1365         val2 = expr_prod();
1366         switch(op) {
1367         default:
1368         case '&':
1369             val &= val2;
1370             break;
1371         case '|':
1372             val |= val2;
1373             break;
1374         case '^':
1375             val ^= val2;
1376             break;
1377         }
1378     }
1379     return val;
1380 }
1381
1382 static target_long expr_sum(void)
1383 {
1384     target_long val, val2;
1385     int op;
1386
1387     val = expr_logic();
1388     for(;;) {
1389         op = *pch;
1390         if (op != '+' && op != '-')
1391             break;
1392         next();
1393         val2 = expr_logic();
1394         if (op == '+')
1395             val += val2;
1396         else
1397             val -= val2;
1398     }
1399     return val;
1400 }
1401
1402 static int get_expr(target_long *pval, const char **pp)
1403 {
1404     pch = *pp;
1405     if (setjmp(expr_env)) {
1406         *pp = pch;
1407         return -1;
1408     }
1409     while (isspace(*pch))
1410         pch++;
1411     *pval = expr_sum();
1412     *pp = pch;
1413     return 0;
1414 }
1415
1416 static int get_str(char *buf, int buf_size, const char **pp)
1417 {
1418     const char *p;
1419     char *q;
1420     int c;
1421
1422     q = buf;
1423     p = *pp;
1424     while (isspace(*p))
1425         p++;
1426     if (*p == '\0') {
1427     fail:
1428         *q = '\0';
1429         *pp = p;
1430         return -1;
1431     }
1432     if (*p == '\"') {
1433         p++;
1434         while (*p != '\0' && *p != '\"') {
1435             if (*p == '\\') {
1436                 p++;
1437                 c = *p++;
1438                 switch(c) {
1439                 case 'n':
1440                     c = '\n';
1441                     break;
1442                 case 'r':
1443                     c = '\r';
1444                     break;
1445                 case '\\':
1446                 case '\'':
1447                 case '\"':
1448                     break;
1449                 default:
1450                     qemu_printf("unsupported escape code: '\\%c'\n", c);
1451                     goto fail;
1452                 }
1453                 if ((q - buf) < buf_size - 1) {
1454                     *q++ = c;
1455                 }
1456             } else {
1457                 if ((q - buf) < buf_size - 1) {
1458                     *q++ = *p;
1459                 }
1460                 p++;
1461             }
1462         }
1463         if (*p != '\"') {
1464             qemu_printf("unterminated string\n");
1465             goto fail;
1466         }
1467         p++;
1468     } else {
1469         while (*p != '\0' && !isspace(*p)) {
1470             if ((q - buf) < buf_size - 1) {
1471                 *q++ = *p;
1472             }
1473             p++;
1474         }
1475     }
1476     *q = '\0';
1477     *pp = p;
1478     return 0;
1479 }
1480
1481 static int default_fmt_format = 'x';
1482 static int default_fmt_size = 4;
1483
1484 #define MAX_ARGS 16
1485
1486 static void monitor_handle_command(const char *cmdline)
1487 {
1488     const char *p, *pstart, *typestr;
1489     char *q;
1490     int c, nb_args, len, i, has_arg;
1491     term_cmd_t *cmd;
1492     char cmdname[256];
1493     char buf[1024];
1494     void *str_allocated[MAX_ARGS];
1495     void *args[MAX_ARGS];
1496
1497 #ifdef DEBUG
1498     term_printf("command='%s'\n", cmdline);
1499 #endif
1500
1501     /* extract the command name */
1502     p = cmdline;
1503     q = cmdname;
1504     while (isspace(*p))
1505         p++;
1506     if (*p == '\0')
1507         return;
1508     pstart = p;
1509     while (*p != '\0' && *p != '/' && !isspace(*p))
1510         p++;
1511     len = p - pstart;
1512     if (len > sizeof(cmdname) - 1)
1513         len = sizeof(cmdname) - 1;
1514     memcpy(cmdname, pstart, len);
1515     cmdname[len] = '\0';
1516
1517     /* find the command */
1518     for(cmd = term_cmds; cmd->name != NULL; cmd++) {
1519         if (compare_cmd(cmdname, cmd->name))
1520             goto found;
1521     }
1522     term_printf("unknown command: '%s'\n", cmdname);
1523     return;
1524  found:
1525
1526     for(i = 0; i < MAX_ARGS; i++)
1527         str_allocated[i] = NULL;
1528
1529     /* parse the parameters */
1530     typestr = cmd->args_type;
1531     nb_args = 0;
1532     for(;;) {
1533         c = *typestr;
1534         if (c == '\0')
1535             break;
1536         typestr++;
1537         switch(c) {
1538         case 'F':
1539         case 'B':
1540         case 's':
1541             {
1542                 int ret;
1543                 char *str;
1544
1545                 while (isspace(*p))
1546                     p++;
1547                 if (*typestr == '?') {
1548                     typestr++;
1549                     if (*p == '\0') {
1550                         /* no optional string: NULL argument */
1551                         str = NULL;
1552                         goto add_str;
1553                     }
1554                 }
1555                 ret = get_str(buf, sizeof(buf), &p);
1556                 if (ret < 0) {
1557                     switch(c) {
1558                     case 'F':
1559                         term_printf("%s: filename expected\n", cmdname);
1560                         break;
1561                     case 'B':
1562                         term_printf("%s: block device name expected\n", cmdname);
1563                         break;
1564                     default:
1565                         term_printf("%s: string expected\n", cmdname);
1566                         break;
1567                     }
1568                     goto fail;
1569                 }
1570                 str = qemu_malloc(strlen(buf) + 1);
1571                 strcpy(str, buf);
1572                 str_allocated[nb_args] = str;
1573             add_str:
1574                 if (nb_args >= MAX_ARGS) {
1575                 error_args:
1576                     term_printf("%s: too many arguments\n", cmdname);
1577                     goto fail;
1578                 }
1579                 args[nb_args++] = str;
1580             }
1581             break;
1582         case '/':
1583             {
1584                 int count, format, size;
1585
1586                 while (isspace(*p))
1587                     p++;
1588                 if (*p == '/') {
1589                     /* format found */
1590                     p++;
1591                     count = 1;
1592                     if (isdigit(*p)) {
1593                         count = 0;
1594                         while (isdigit(*p)) {
1595                             count = count * 10 + (*p - '0');
1596                             p++;
1597                         }
1598                     }
1599                     size = -1;
1600                     format = -1;
1601                     for(;;) {
1602                         switch(*p) {
1603                         case 'o':
1604                         case 'd':
1605                         case 'u':
1606                         case 'x':
1607                         case 'i':
1608                         case 'c':
1609                             format = *p++;
1610                             break;
1611                         case 'b':
1612                             size = 1;
1613                             p++;
1614                             break;
1615                         case 'h':
1616                             size = 2;
1617                             p++;
1618                             break;
1619                         case 'w':
1620                             size = 4;
1621                             p++;
1622                             break;
1623                         case 'g':
1624                         case 'L':
1625                             size = 8;
1626                             p++;
1627                             break;
1628                         default:
1629                             goto next;
1630                         }
1631                     }
1632                 next:
1633                     if (*p != '\0' && !isspace(*p)) {
1634                         term_printf("invalid char in format: '%c'\n", *p);
1635                         goto fail;
1636                     }
1637                     if (format < 0)
1638                         format = default_fmt_format;
1639                     if (format != 'i') {
1640                         /* for 'i', not specifying a size gives -1 as size */
1641                         if (size < 0)
1642                             size = default_fmt_size;
1643                     }
1644                     default_fmt_size = size;
1645                     default_fmt_format = format;
1646                 } else {
1647                     count = 1;
1648                     format = default_fmt_format;
1649                     if (format != 'i') {
1650                         size = default_fmt_size;
1651                     } else {
1652                         size = -1;
1653                     }
1654                 }
1655                 if (nb_args + 3 > MAX_ARGS)
1656                     goto error_args;
1657                 args[nb_args++] = (void*)count;
1658                 args[nb_args++] = (void*)format;
1659                 args[nb_args++] = (void*)size;
1660             }
1661             break;
1662         case 'i':
1663         case 'l':
1664             {
1665                 target_long val;
1666                 while (isspace(*p))
1667                     p++;
1668                 if (*typestr == '?' || *typestr == '.') {
1669                     typestr++;
1670                     if (*typestr == '?') {
1671                         if (*p == '\0')
1672                             has_arg = 0;
1673                         else
1674                             has_arg = 1;
1675                     } else {
1676                         if (*p == '.') {
1677                             p++;
1678                             while (isspace(*p))
1679                                 p++;
1680                             has_arg = 1;
1681                         } else {
1682                             has_arg = 0;
1683                         }
1684                     }
1685                     if (nb_args >= MAX_ARGS)
1686                         goto error_args;
1687                     args[nb_args++] = (void *)has_arg;
1688                     if (!has_arg) {
1689                         if (nb_args >= MAX_ARGS)
1690                             goto error_args;
1691                         val = -1;
1692                         goto add_num;
1693                     }
1694                 }
1695                 if (get_expr(&val, &p))
1696                     goto fail;
1697             add_num:
1698                 if (c == 'i') {
1699                     if (nb_args >= MAX_ARGS)
1700                         goto error_args;
1701                     args[nb_args++] = (void *)(int)val;
1702                 } else {
1703                     if ((nb_args + 1) >= MAX_ARGS)
1704                         goto error_args;
1705 #if TARGET_LONG_BITS == 64
1706                     args[nb_args++] = (void *)(int)((val >> 32) & 0xffffffff);
1707 #else
1708                     args[nb_args++] = (void *)0;
1709 #endif
1710                     args[nb_args++] = (void *)(int)(val & 0xffffffff);
1711                 }
1712             }
1713             break;
1714         case '-':
1715             {
1716                 int has_option;
1717                 /* option */
1718
1719                 c = *typestr++;
1720                 if (c == '\0')
1721                     goto bad_type;
1722                 while (isspace(*p))
1723                     p++;
1724                 has_option = 0;
1725                 if (*p == '-') {
1726                     p++;
1727                     if (*p != c) {
1728                         term_printf("%s: unsupported option -%c\n",
1729                                     cmdname, *p);
1730                         goto fail;
1731                     }
1732                     p++;
1733                     has_option = 1;
1734                 }
1735                 if (nb_args >= MAX_ARGS)
1736                     goto error_args;
1737                 args[nb_args++] = (void *)has_option;
1738             }
1739             break;
1740         default:
1741         bad_type:
1742             term_printf("%s: unknown type '%c'\n", cmdname, c);
1743             goto fail;
1744         }
1745     }
1746     /* check that all arguments were parsed */
1747     while (isspace(*p))
1748         p++;
1749     if (*p != '\0') {
1750         term_printf("%s: extraneous characters at the end of line\n",
1751                     cmdname);
1752         goto fail;
1753     }
1754
1755     switch(nb_args) {
1756     case 0:
1757         cmd->handler();
1758         break;
1759     case 1:
1760         cmd->handler(args[0]);
1761         break;
1762     case 2:
1763         cmd->handler(args[0], args[1]);
1764         break;
1765     case 3:
1766         cmd->handler(args[0], args[1], args[2]);
1767         break;
1768     case 4:
1769         cmd->handler(args[0], args[1], args[2], args[3]);
1770         break;
1771     case 5:
1772         cmd->handler(args[0], args[1], args[2], args[3], args[4]);
1773         break;
1774     case 6:
1775         cmd->handler(args[0], args[1], args[2], args[3], args[4], args[5]);
1776         break;
1777     default:
1778         term_printf("unsupported number of arguments: %d\n", nb_args);
1779         goto fail;
1780     }
1781  fail:
1782     for(i = 0; i < MAX_ARGS; i++)
1783         qemu_free(str_allocated[i]);
1784     return;
1785 }
1786
1787 static void cmd_completion(const char *name, const char *list)
1788 {
1789     const char *p, *pstart;
1790     char cmd[128];
1791     int len;
1792
1793     p = list;
1794     for(;;) {
1795         pstart = p;
1796         p = strchr(p, '|');
1797         if (!p)
1798             p = pstart + strlen(pstart);
1799         len = p - pstart;
1800         if (len > sizeof(cmd) - 2)
1801             len = sizeof(cmd) - 2;
1802         memcpy(cmd, pstart, len);
1803         cmd[len] = '\0';
1804         if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
1805             add_completion(cmd);
1806         }
1807         if (*p == '\0')
1808             break;
1809         p++;
1810     }
1811 }
1812
1813 static void file_completion(const char *input)
1814 {
1815     DIR *ffs;
1816     struct dirent *d;
1817     char path[1024];
1818     char file[1024], file_prefix[1024];
1819     int input_path_len;
1820     const char *p;
1821
1822     p = strrchr(input, '/');
1823     if (!p) {
1824         input_path_len = 0;
1825         pstrcpy(file_prefix, sizeof(file_prefix), input);
1826         strcpy(path, ".");
1827     } else {
1828         input_path_len = p - input + 1;
1829         memcpy(path, input, input_path_len);
1830         if (input_path_len > sizeof(path) - 1)
1831             input_path_len = sizeof(path) - 1;
1832         path[input_path_len] = '\0';
1833         pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
1834     }
1835 #ifdef DEBUG_COMPLETION
1836     term_printf("input='%s' path='%s' prefix='%s'\n", input, path, file_prefix);
1837 #endif
1838     ffs = opendir(path);
1839     if (!ffs)
1840         return;
1841     for(;;) {
1842         struct stat sb;
1843         d = readdir(ffs);
1844         if (!d)
1845             break;
1846         if (strstart(d->d_name, file_prefix, NULL)) {
1847             memcpy(file, input, input_path_len);
1848             strcpy(file + input_path_len, d->d_name);
1849             /* stat the file to find out if it's a directory.
1850              * In that case add a slash to speed up typing long paths
1851              */
1852             stat(file, &sb);
1853             if(S_ISDIR(sb.st_mode))
1854                 strcat(file, "/");
1855             add_completion(file);
1856         }
1857     }
1858     closedir(ffs);
1859 }
1860
1861 static void block_completion_it(void *opaque, const char *name)
1862 {
1863     const char *input = opaque;
1864
1865     if (input[0] == '\0' ||
1866         !strncmp(name, (char *)input, strlen(input))) {
1867         add_completion(name);
1868     }
1869 }
1870
1871 /* NOTE: this parser is an approximate form of the real command parser */
1872 static void parse_cmdline(const char *cmdline,
1873                          int *pnb_args, char **args)
1874 {
1875     const char *p;
1876     int nb_args, ret;
1877     char buf[1024];
1878
1879     p = cmdline;
1880     nb_args = 0;
1881     for(;;) {
1882         while (isspace(*p))
1883             p++;
1884         if (*p == '\0')
1885             break;
1886         if (nb_args >= MAX_ARGS)
1887             break;
1888         ret = get_str(buf, sizeof(buf), &p);
1889         args[nb_args] = qemu_strdup(buf);
1890         nb_args++;
1891         if (ret < 0)
1892             break;
1893     }
1894     *pnb_args = nb_args;
1895 }
1896
1897 void readline_find_completion(const char *cmdline)
1898 {
1899     const char *cmdname;
1900     char *args[MAX_ARGS];
1901     int nb_args, i, len;
1902     const char *ptype, *str;
1903     term_cmd_t *cmd;
1904
1905     parse_cmdline(cmdline, &nb_args, args);
1906 #ifdef DEBUG_COMPLETION
1907     for(i = 0; i < nb_args; i++) {
1908         term_printf("arg%d = '%s'\n", i, (char *)args[i]);
1909     }
1910 #endif
1911
1912     /* if the line ends with a space, it means we want to complete the
1913        next arg */
1914     len = strlen(cmdline);
1915     if (len > 0 && isspace(cmdline[len - 1])) {
1916         if (nb_args >= MAX_ARGS)
1917             return;
1918         args[nb_args++] = qemu_strdup("");
1919     }
1920     if (nb_args <= 1) {
1921         /* command completion */
1922         if (nb_args == 0)
1923             cmdname = "";
1924         else
1925             cmdname = args[0];
1926         completion_index = strlen(cmdname);
1927         for(cmd = term_cmds; cmd->name != NULL; cmd++) {
1928             cmd_completion(cmdname, cmd->name);
1929         }
1930     } else {
1931         /* find the command */
1932         for(cmd = term_cmds; cmd->name != NULL; cmd++) {
1933             if (compare_cmd(args[0], cmd->name))
1934                 goto found;
1935         }
1936         return;
1937     found:
1938         ptype = cmd->args_type;
1939         for(i = 0; i < nb_args - 2; i++) {
1940             if (*ptype != '\0') {
1941                 ptype++;
1942                 while (*ptype == '?')
1943                     ptype++;
1944             }
1945         }
1946         str = args[nb_args - 1];
1947         switch(*ptype) {
1948         case 'F':
1949             /* file completion */
1950             completion_index = strlen(str);
1951             file_completion(str);
1952             break;
1953         case 'B':
1954             /* block device name completion */
1955             completion_index = strlen(str);
1956             bdrv_iterate(block_completion_it, (void *)str);
1957             break;
1958         case 's':
1959             /* XXX: more generic ? */
1960             if (!strcmp(cmd->name, "info")) {
1961                 completion_index = strlen(str);
1962                 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
1963                     cmd_completion(str, cmd->name);
1964                 }
1965             }
1966             break;
1967         default:
1968             break;
1969         }
1970     }
1971     for(i = 0; i < nb_args; i++)
1972         qemu_free(args[i]);
1973 }
1974
1975 static int term_can_read(void *opaque)
1976 {
1977     return 128;
1978 }
1979
1980 static void term_read(void *opaque, const uint8_t *buf, int size)
1981 {
1982     int i;
1983     for(i = 0; i < size; i++)
1984         readline_handle_byte(buf[i]);
1985 }
1986
1987 static void monitor_start_input(void);
1988
1989 static void monitor_handle_command1(void *opaque, const char *cmdline)
1990 {
1991     monitor_handle_command(cmdline);
1992     monitor_start_input();
1993 }
1994
1995 static void monitor_start_input(void)
1996 {
1997     readline_start("(qemu) ", 0, monitor_handle_command1, NULL);
1998 }
1999
2000 void monitor_init(CharDriverState *hd, int show_banner)
2001 {
2002     monitor_hd = hd;
2003     if (show_banner) {
2004         term_printf("QEMU %s monitor - type 'help' for more information\n",
2005                     QEMU_VERSION);
2006     }
2007     qemu_chr_add_read_handler(hd, term_can_read, term_read, NULL);
2008     monitor_start_input();
2009 }
2010
2011 /* XXX: use threads ? */
2012 /* modal monitor readline */
2013 static int monitor_readline_started;
2014 static char *monitor_readline_buf;
2015 static int monitor_readline_buf_size;
2016
2017 static void monitor_readline_cb(void *opaque, const char *input)
2018 {
2019     pstrcpy(monitor_readline_buf, monitor_readline_buf_size, input);
2020     monitor_readline_started = 0;
2021 }
2022
2023 void monitor_readline(const char *prompt, int is_password,
2024                       char *buf, int buf_size)
2025 {
2026     if (is_password) {
2027         qemu_chr_send_event(monitor_hd, CHR_EVENT_FOCUS);
2028     }
2029     readline_start(prompt, is_password, monitor_readline_cb, NULL);
2030     monitor_readline_buf = buf;
2031     monitor_readline_buf_size = buf_size;
2032     monitor_readline_started = 1;
2033     while (monitor_readline_started) {
2034         main_loop_wait(10);
2035     }
2036 }