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