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 #define MAX_MON 4
  58 static CharDriverState *monitor_hd[MAX_MON];
  59 static int hide_banner;
  60
  61 static term_cmd_t term_cmds[];
  62 static term_cmd_t info_cmds[];
  63
  64 static char term_outbuf[1024];
  65 static int term_outbuf_index;
  66
  67 static void monitor_start_input(void);
  68
  69 CPUState *mon_cpu = NULL;
  70
  71 void term_flush(void)
  72 {
  73     int i;
  74     if (term_outbuf_index > 0) {
  75         for (i = 0; i < MAX_MON; i++)
  76             if (monitor_hd[i] && monitor_hd[i]->focus == 0)
  77                 qemu_chr_write(monitor_hd[i], term_outbuf, term_outbuf_index);
  78         term_outbuf_index = 0;
  79     }
  80 }
  81
  82 /* flush at every end of line or if the buffer is full */
  83 void term_puts(const char *str)
  84 {
  85     int c;
  86     for(;;) {
  87         c = *str++;
  88         if (c == '\0')
  89             break;
  90         if (c == '\n')
  91             term_outbuf[term_outbuf_index++] = '\r';
  92         term_outbuf[term_outbuf_index++] = c;
  93         if (term_outbuf_index >= (sizeof(term_outbuf) - 1) ||
  94             c == '\n')
  95             term_flush();
  96     }
  97 }
  98
  99 void term_vprintf(const char *fmt, va_list ap)
 100 {
 101     char buf[4096];
 102     vsnprintf(buf, sizeof(buf), fmt, ap);
 103     term_puts(buf);
 104 }
 105
 106 void term_printf(const char *fmt, ...)
 107 {
 108     va_list ap;
 109     va_start(ap, fmt);
 110     term_vprintf(fmt, ap);
 111     va_end(ap);
 112 }
 113
 114 void term_print_filename(const char *filename)
 115 {
 116     int i;
 117
 118     for (i = 0; filename[i]; i++) {
 119         switch (filename[i]) {
 120         case ' ':
 121         case '"':
 122         case '\\':
 123             term_printf("\\%c", filename[i]);
 124             break;
 125         case '\t':
 126             term_printf("\\t");
 127             break;
 128         case '\r':
 129             term_printf("\\r");
 130             break;
 131         case '\n':
 132             term_printf("\\n");
 133             break;
 134         default:
 135             term_printf("%c", filename[i]);
 136             break;
 137         }
 138     }
 139 }
 140
 141 static int monitor_fprintf(FILE *stream, const char *fmt, ...)
 142 {
 143     va_list ap;
 144     va_start(ap, fmt);
 145     term_vprintf(fmt, ap);
 146     va_end(ap);
 147     return 0;
 148 }
 149
 150 static int compare_cmd(const char *name, const char *list)
 151 {
 152     const char *p, *pstart;
 153     int len;
 154     len = strlen(name);
 155     p = list;
 156     for(;;) {
 157         pstart = p;
 158         p = strchr(p, '|');
 159         if (!p)
 160             p = pstart + strlen(pstart);
 161         if ((p - pstart) == len && !memcmp(pstart, name, len))
 162             return 1;
 163         if (*p == '\0')
 164             break;
 165         p++;
 166     }
 167     return 0;
 168 }
 169
 170 static void help_cmd1(term_cmd_t *cmds, const char *prefix, const char *name)
 171 {
 172     term_cmd_t *cmd;
 173
 174     for(cmd = cmds; cmd->name != NULL; cmd++) {
 175         if (!name || !strcmp(name, cmd->name))
 176             term_printf("%s%s %s -- %s\n", prefix, cmd->name, cmd->params, cmd->help);
 177     }
 178 }
 179
 180 static void help_cmd(const char *name)
 181 {
 182     if (name && !strcmp(name, "info")) {
 183         help_cmd1(info_cmds, "info ", NULL);
 184     } else {
 185         help_cmd1(term_cmds, "", name);
 186         if (name && !strcmp(name, "log")) {
 187             CPULogItem *item;
 188             term_printf("Log items (comma separated):\n");
 189             term_printf("%-10s %s\n", "none", "remove all logs");
 190             for(item = cpu_log_items; item->mask != 0; item++) {
 191                 term_printf("%-10s %s\n", item->name, item->help);
 192             }
 193         }
 194     }
 195 }
 196
 197 static void do_help(const char *name)
 198 {
 199     help_cmd(name);
 200 }
 201
 202 static void do_commit(const char *device)
 203 {
 204     int i, all_devices;
 205
 206     all_devices = !strcmp(device, "all");
 207     for (i = 0; i < MAX_DISKS; i++) {
 208         if (bs_table[i]) {
 209             if (all_devices ||
 210                 !strcmp(bdrv_get_device_name(bs_table[i]), device))
 211                 bdrv_commit(bs_table[i]);
 212         }
 213     }
 214 }
 215
 216 static void do_info(const char *item)
 217 {
 218     term_cmd_t *cmd;
 219
 220     if (!item)
 221         goto help;
 222     for(cmd = info_cmds; cmd->name != NULL; cmd++) {
 223         if (compare_cmd(item, cmd->name))
 224             goto found;
 225     }
 226  help:
 227     help_cmd("info");
 228     return;
 229  found:
 230     cmd->handler();
 231 }
 232
 233 static void do_info_version(void)
 234 {
 235   term_printf("%s\n", QEMU_VERSION);
 236 }
 237
 238 static void do_info_name(void)
 239 {
 240     if (qemu_name)
 241         term_printf("%s\n", qemu_name);
 242 }
 243
 244 static void do_info_block(void)
 245 {
 246     bdrv_info();
 247 }
 248
 249 /* get the current CPU defined by the user */
 250 int mon_set_cpu(int cpu_index)
 251 {
 252     CPUState *env;
 253
 254     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 255         if (env->cpu_index == cpu_index) {
 256             mon_cpu = env;
 257             return 0;
 258         }
 259     }
 260     return -1;
 261 }
 262
 263 CPUState *mon_get_cpu(void)
 264 {
 265     if (!mon_cpu) {
 266         mon_set_cpu(0);
 267     }
 268     return mon_cpu;
 269 }
 270
 271 static void do_info_registers(void)
 272 {
 273     CPUState *env;
 274     env = mon_get_cpu();
 275     if (!env)
 276         return;
 277 #ifdef TARGET_I386
 278     cpu_dump_state(env, NULL, monitor_fprintf,
 279                    X86_DUMP_FPU);
 280 #else
 281     cpu_dump_state(env, NULL, monitor_fprintf,
 282                    0);
 283 #endif
 284 }
 285
 286 static void do_info_cpus(void)
 287 {
 288     CPUState *env;
 289
 290     /* just to set the default cpu if not already done */
 291     mon_get_cpu();
 292
 293     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 294         term_printf("%c CPU #%d:",
 295                     (env == mon_cpu) ? '*' : ' ',
 296                     env->cpu_index);
 297 #if defined(TARGET_I386)
 298         term_printf(" pc=0x" TARGET_FMT_lx, env->eip + env->segs[R_CS].base);
 299         if (env->hflags & HF_HALTED_MASK)
 300             term_printf(" (halted)");
 301 #elif defined(TARGET_PPC)
 302         term_printf(" nip=0x" TARGET_FMT_lx, env->nip);
 303         if (env->halted)
 304             term_printf(" (halted)");
 305 #elif defined(TARGET_SPARC)
 306         term_printf(" pc=0x" TARGET_FMT_lx " npc=0x" TARGET_FMT_lx, env->pc, env->npc);
 307         if (env->halted)
 308             term_printf(" (halted)");
 309 #endif
 310         term_printf("\n");
 311     }
 312 }
 313
 314 static void do_cpu_set(int index)
 315 {
 316     if (mon_set_cpu(index) < 0)
 317         term_printf("Invalid CPU index\n");
 318 }
 319
 320 static void do_info_jit(void)
 321 {
 322     dump_exec_info(NULL, monitor_fprintf);
 323 }
 324
 325 static void do_info_history (void)
 326 {
 327     int i;
 328     const char *str;
 329
 330     i = 0;
 331     for(;;) {
 332         str = readline_get_history(i);
 333         if (!str)
 334             break;
 335         term_printf("%d: '%s'\n", i, str);
 336         i++;
 337     }
 338 }
 339
 340 #if defined(TARGET_PPC)
 341 /* XXX: not implemented in other targets */
 342 static void do_info_cpu_stats (void)
 343 {
 344     CPUState *env;
 345
 346     env = mon_get_cpu();
 347     cpu_dump_statistics(env, NULL, &monitor_fprintf, 0);
 348 }
 349 #endif
 350
 351 static void do_quit(void)
 352 {
 353     exit(0);
 354 }
 355
 356 static int eject_device(BlockDriverState *bs, int force)
 357 {
 358     if (bdrv_is_inserted(bs)) {
 359         if (!force) {
 360             if (!bdrv_is_removable(bs)) {
 361                 term_printf("device is not removable\n");
 362                 return -1;
 363             }
 364             if (bdrv_is_locked(bs)) {
 365                 term_printf("device is locked\n");
 366                 return -1;
 367             }
 368         }
 369         bdrv_close(bs);
 370     }
 371     return 0;
 372 }
 373
 374 static void do_eject(int force, const char *filename)
 375 {
 376     BlockDriverState *bs;
 377
 378     bs = bdrv_find(filename);
 379     if (!bs) {
 380         term_printf("device not found\n");
 381         return;
 382     }
 383     eject_device(bs, force);
 384 }
 385
 386 static void do_change(const char *device, const char *filename)
 387 {
 388     BlockDriverState *bs;
 389     int i;
 390     char password[256];
 391
 392     bs = bdrv_find(device);
 393     if (!bs) {
 394         term_printf("device not found\n");
 395         return;
 396     }
 397     if (eject_device(bs, 0) < 0)
 398         return;
 399     bdrv_open(bs, filename, 0);
 400     if (bdrv_is_encrypted(bs)) {
 401         term_printf("%s is encrypted.\n", device);
 402         for(i = 0; i < 3; i++) {
 403             monitor_readline("Password: ", 1, password, sizeof(password));
 404             if (bdrv_set_key(bs, password) == 0)
 405                 break;
 406             term_printf("invalid password\n");
 407         }
 408     }
 409 }
 410
 411 static void do_screen_dump(const char *filename)
 412 {
 413     vga_hw_screen_dump(filename);
 414 }
 415
 416 static void do_log(const char *items)
 417 {
 418     int mask;
 419
 420     if (!strcmp(items, "none")) {
 421         mask = 0;
 422     } else {
 423         mask = cpu_str_to_log_mask(items);
 424         if (!mask) {
 425             help_cmd("log");
 426             return;
 427         }
 428     }
 429     cpu_set_log(mask);
 430 }
 431
 432 static void do_stop(void)
 433 {
 434     vm_stop(EXCP_INTERRUPT);
 435 }
 436
 437 static void do_cont(void)
 438 {
 439     vm_start();
 440 }
 441
 442 #ifdef CONFIG_GDBSTUB
 443 static void do_gdbserver(const char *port)
 444 {
 445     if (!port)
 446         port = DEFAULT_GDBSTUB_PORT;
 447     if (gdbserver_start(port) < 0) {
 448         qemu_printf("Could not open gdbserver socket on port '%s'\n", port);
 449     } else {
 450         qemu_printf("Waiting gdb connection on port '%s'\n", port);
 451     }
 452 }
 453 #endif
 454
 455 static void term_printc(int c)
 456 {
 457     term_printf("'");
 458     switch(c) {
 459     case '\'':
 460         term_printf("\\'");
 461         break;
 462     case '\\':
 463         term_printf("\\\\");
 464         break;
 465     case '\n':
 466         term_printf("\\n");
 467         break;
 468     case '\r':
 469         term_printf("\\r");
 470         break;
 471     default:
 472         if (c >= 32 && c <= 126) {
 473             term_printf("%c", c);
 474         } else {
 475             term_printf("\\x%02x", c);
 476         }
 477         break;
 478     }
 479     term_printf("'");
 480 }
 481
 482 static void memory_dump(int count, int format, int wsize,
 483                         target_ulong addr, int is_physical)
 484 {
 485     CPUState *env;
 486     int nb_per_line, l, line_size, i, max_digits, len;
 487     uint8_t buf[16];
 488     uint64_t v;
 489
 490     if (format == 'i') {
 491         int flags;
 492         flags = 0;
 493         env = mon_get_cpu();
 494         if (!env && !is_physical)
 495             return;
 496 #ifdef TARGET_I386
 497         if (wsize == 2) {
 498             flags = 1;
 499         } else if (wsize == 4) {
 500             flags = 0;
 501         } else {
 502             /* as default we use the current CS size */
 503             flags = 0;
 504             if (env) {
 505 #ifdef TARGET_X86_64
 506                 if ((env->efer & MSR_EFER_LMA) &&
 507                     (env->segs[R_CS].flags & DESC_L_MASK))
 508                     flags = 2;
 509                 else
 510 #endif
 511                 if (!(env->segs[R_CS].flags & DESC_B_MASK))
 512                     flags = 1;
 513             }
 514         }
 515 #endif
 516         monitor_disas(env, addr, count, is_physical, flags);
 517         return;
 518     }
 519
 520     len = wsize * count;
 521     if (wsize == 1)
 522         line_size = 8;
 523     else
 524         line_size = 16;
 525     nb_per_line = line_size / wsize;
 526     max_digits = 0;
 527
 528     switch(format) {
 529     case 'o':
 530         max_digits = (wsize * 8 + 2) / 3;
 531         break;
 532     default:
 533     case 'x':
 534         max_digits = (wsize * 8) / 4;
 535         break;
 536     case 'u':
 537     case 'd':
 538         max_digits = (wsize * 8 * 10 + 32) / 33;
 539         break;
 540     case 'c':
 541         wsize = 1;
 542         break;
 543     }
 544
 545     while (len > 0) {
 546         term_printf(TARGET_FMT_lx ":", addr);
 547         l = len;
 548         if (l > line_size)
 549             l = line_size;
 550         if (is_physical) {
 551             cpu_physical_memory_rw(addr, buf, l, 0);
 552         } else {
 553             env = mon_get_cpu();
 554             if (!env)
 555                 break;
 556             cpu_memory_rw_debug(env, addr, buf, l, 0);
 557         }
 558         i = 0;
 559         while (i < l) {
 560             switch(wsize) {
 561             default:
 562             case 1:
 563                 v = ldub_raw(buf + i);
 564                 break;
 565             case 2:
 566                 v = lduw_raw(buf + i);
 567                 break;
 568             case 4:
 569                 v = (uint32_t)ldl_raw(buf + i);
 570                 break;
 571             case 8:
 572                 v = ldq_raw(buf + i);
 573                 break;
 574             }
 575             term_printf(" ");
 576             switch(format) {
 577             case 'o':
 578                 term_printf("%#*" PRIo64, max_digits, v);
 579                 break;
 580             case 'x':
 581                 term_printf("0x%0*" PRIx64, max_digits, v);
 582                 break;
 583             case 'u':
 584                 term_printf("%*" PRIu64, max_digits, v);
 585                 break;
 586             case 'd':
 587                 term_printf("%*" PRId64, max_digits, v);
 588                 break;
 589             case 'c':
 590                 term_printc(v);
 591                 break;
 592             }
 593             i += wsize;
 594         }
 595         term_printf("\n");
 596         addr += l;
 597         len -= l;
 598     }
 599 }
 600
 601 #if TARGET_LONG_BITS == 64
 602 #define GET_TLONG(h, l) (((uint64_t)(h) << 32) | (l))
 603 #else
 604 #define GET_TLONG(h, l) (l)
 605 #endif
 606
 607 static void do_memory_dump(int count, int format, int size,
 608                            uint32_t addrh, uint32_t addrl)
 609 {
 610     target_long addr = GET_TLONG(addrh, addrl);
 611     memory_dump(count, format, size, addr, 0);
 612 }
 613
 614 static void do_physical_memory_dump(int count, int format, int size,
 615                                     uint32_t addrh, uint32_t addrl)
 616
 617 {
 618     target_long addr = GET_TLONG(addrh, addrl);
 619     memory_dump(count, format, size, addr, 1);
 620 }
 621
 622 static void do_print(int count, int format, int size, unsigned int valh, unsigned int vall)
 623 {
 624     target_long val = GET_TLONG(valh, vall);
 625 #if TARGET_LONG_BITS == 32
 626     switch(format) {
 627     case 'o':
 628         term_printf("%#o", val);
 629         break;
 630     case 'x':
 631         term_printf("%#x", val);
 632         break;
 633     case 'u':
 634         term_printf("%u", val);
 635         break;
 636     default:
 637     case 'd':
 638         term_printf("%d", val);
 639         break;
 640     case 'c':
 641         term_printc(val);
 642         break;
 643     }
 644 #else
 645     switch(format) {
 646     case 'o':
 647         term_printf("%#" PRIo64, val);
 648         break;
 649     case 'x':
 650         term_printf("%#" PRIx64, val);
 651         break;
 652     case 'u':
 653         term_printf("%" PRIu64, val);
 654         break;
 655     default:
 656     case 'd':
 657         term_printf("%" PRId64, val);
 658         break;
 659     case 'c':
 660         term_printc(val);
 661         break;
 662     }
 663 #endif
 664     term_printf("\n");
 665 }
 666
 667 static void do_memory_save(unsigned int valh, unsigned int vall,
 668                            uint32_t size, const char *filename)
 669 {
 670     FILE *f;
 671     target_long addr = GET_TLONG(valh, vall);
 672     uint32_t l;
 673     CPUState *env;
 674     uint8_t buf[1024];
 675
 676     env = mon_get_cpu();
 677     if (!env)
 678         return;
 679
 680     f = fopen(filename, "wb");
 681     if (!f) {
 682         term_printf("could not open '%s'\n", filename);
 683         return;
 684     }
 685     while (size != 0) {
 686         l = sizeof(buf);
 687         if (l > size)
 688             l = size;
 689         cpu_memory_rw_debug(env, addr, buf, l, 0);
 690         fwrite(buf, 1, l, f);
 691         addr += l;
 692         size -= l;
 693     }
 694     fclose(f);
 695 }
 696
 697 static void do_sum(uint32_t start, uint32_t size)
 698 {
 699     uint32_t addr;
 700     uint8_t buf[1];
 701     uint16_t sum;
 702
 703     sum = 0;
 704     for(addr = start; addr < (start + size); addr++) {
 705         cpu_physical_memory_rw(addr, buf, 1, 0);
 706         /* BSD sum algorithm ('sum' Unix command) */
 707         sum = (sum >> 1) | (sum << 15);
 708         sum += buf[0];
 709     }
 710     term_printf("%05d\n", sum);
 711 }
 712
 713 typedef struct {
 714     int keycode;
 715     const char *name;
 716 } KeyDef;
 717
 718 static const KeyDef key_defs[] = {
 719     { 0x2a, "shift" },
 720     { 0x36, "shift_r" },
 721
 722     { 0x38, "alt" },
 723     { 0xb8, "alt_r" },
 724     { 0x1d, "ctrl" },
 725     { 0x9d, "ctrl_r" },
 726
 727     { 0xdd, "menu" },
 728
 729     { 0x01, "esc" },
 730
 731     { 0x02, "1" },
 732     { 0x03, "2" },
 733     { 0x04, "3" },
 734     { 0x05, "4" },
 735     { 0x06, "5" },
 736     { 0x07, "6" },
 737     { 0x08, "7" },
 738     { 0x09, "8" },
 739     { 0x0a, "9" },
 740     { 0x0b, "0" },
 741     { 0x0c, "minus" },
 742     { 0x0d, "equal" },
 743     { 0x0e, "backspace" },
 744
 745     { 0x0f, "tab" },
 746     { 0x10, "q" },
 747     { 0x11, "w" },
 748     { 0x12, "e" },
 749     { 0x13, "r" },
 750     { 0x14, "t" },
 751     { 0x15, "y" },
 752     { 0x16, "u" },
 753     { 0x17, "i" },
 754     { 0x18, "o" },
 755     { 0x19, "p" },
 756
 757     { 0x1c, "ret" },
 758
 759     { 0x1e, "a" },
 760     { 0x1f, "s" },
 761     { 0x20, "d" },
 762     { 0x21, "f" },
 763     { 0x22, "g" },
 764     { 0x23, "h" },
 765     { 0x24, "j" },
 766     { 0x25, "k" },
 767     { 0x26, "l" },
 768
 769     { 0x2c, "z" },
 770     { 0x2d, "x" },
 771     { 0x2e, "c" },
 772     { 0x2f, "v" },
 773     { 0x30, "b" },
 774     { 0x31, "n" },
 775     { 0x32, "m" },
 776
 777     { 0x39, "spc" },
 778     { 0x3a, "caps_lock" },
 779     { 0x3b, "f1" },
 780     { 0x3c, "f2" },
 781     { 0x3d, "f3" },
 782     { 0x3e, "f4" },
 783     { 0x3f, "f5" },
 784     { 0x40, "f6" },
 785     { 0x41, "f7" },
 786     { 0x42, "f8" },
 787     { 0x43, "f9" },
 788     { 0x44, "f10" },
 789     { 0x45, "num_lock" },
 790     { 0x46, "scroll_lock" },
 791
 792     { 0xb5, "kp_divide" },
 793     { 0x37, "kp_multiply" },
 794     { 0x4a, "kp_substract" },
 795     { 0x4e, "kp_add" },
 796     { 0x9c, "kp_enter" },
 797     { 0x53, "kp_decimal" },
 798
 799     { 0x52, "kp_0" },
 800     { 0x4f, "kp_1" },
 801     { 0x50, "kp_2" },
 802     { 0x51, "kp_3" },
 803     { 0x4b, "kp_4" },
 804     { 0x4c, "kp_5" },
 805     { 0x4d, "kp_6" },
 806     { 0x47, "kp_7" },
 807     { 0x48, "kp_8" },
 808     { 0x49, "kp_9" },
 809
 810     { 0x56, "<" },
 811
 812     { 0x57, "f11" },
 813     { 0x58, "f12" },
 814
 815     { 0xb7, "print" },
 816
 817     { 0xc7, "home" },
 818     { 0xc9, "pgup" },
 819     { 0xd1, "pgdn" },
 820     { 0xcf, "end" },
 821
 822     { 0xcb, "left" },
 823     { 0xc8, "up" },
 824     { 0xd0, "down" },
 825     { 0xcd, "right" },
 826
 827     { 0xd2, "insert" },
 828     { 0xd3, "delete" },
 829     { 0, NULL },
 830 };
 831
 832 static int get_keycode(const char *key)
 833 {
 834     const KeyDef *p;
 835     char *endp;
 836     int ret;
 837
 838     for(p = key_defs; p->name != NULL; p++) {
 839         if (!strcmp(key, p->name))
 840             return p->keycode;
 841     }
 842     if (strstart(key, "0x", NULL)) {
 843         ret = strtoul(key, &endp, 0);
 844         if (*endp == '\0' && ret >= 0x01 && ret <= 0xff)
 845             return ret;
 846     }
 847     return -1;
 848 }
 849
 850 static void do_send_key(const char *string)
 851 {
 852     char keybuf[16], *q;
 853     uint8_t keycodes[16];
 854     const char *p;
 855     int nb_keycodes, keycode, i;
 856
 857     nb_keycodes = 0;
 858     p = string;
 859     while (*p != '\0') {
 860         q = keybuf;
 861         while (*p != '\0' && *p != '-') {
 862             if ((q - keybuf) < sizeof(keybuf) - 1) {
 863                 *q++ = *p;
 864             }
 865             p++;
 866         }
 867         *q = '\0';
 868         keycode = get_keycode(keybuf);
 869         if (keycode < 0) {
 870             term_printf("unknown key: '%s'\n", keybuf);
 871             return;
 872         }
 873         keycodes[nb_keycodes++] = keycode;
 874         if (*p == '\0')
 875             break;
 876         p++;
 877     }
 878     /* key down events */
 879     for(i = 0; i < nb_keycodes; i++) {
 880         keycode = keycodes[i];
 881         if (keycode & 0x80)
 882             kbd_put_keycode(0xe0);
 883         kbd_put_keycode(keycode & 0x7f);
 884     }
 885     /* key up events */
 886     for(i = nb_keycodes - 1; i >= 0; i--) {
 887         keycode = keycodes[i];
 888         if (keycode & 0x80)
 889             kbd_put_keycode(0xe0);
 890         kbd_put_keycode(keycode | 0x80);
 891     }
 892 }
 893
 894 static int mouse_button_state;
 895
 896 static void do_mouse_move(const char *dx_str, const char *dy_str,
 897                           const char *dz_str)
 898 {
 899     int dx, dy, dz;
 900     dx = strtol(dx_str, NULL, 0);
 901     dy = strtol(dy_str, NULL, 0);
 902     dz = 0;
 903     if (dz_str)
 904         dz = strtol(dz_str, NULL, 0);
 905     kbd_mouse_event(dx, dy, dz, mouse_button_state);
 906 }
 907
 908 static void do_mouse_button(int button_state)
 909 {
 910     mouse_button_state = button_state;
 911     kbd_mouse_event(0, 0, 0, mouse_button_state);
 912 }
 913
 914 static void do_ioport_read(int count, int format, int size, int addr, int has_index, int index)
 915 {
 916     uint32_t val;
 917     int suffix;
 918
 919     if (has_index) {
 920         cpu_outb(NULL, addr & 0xffff, index & 0xff);
 921         addr++;
 922     }
 923     addr &= 0xffff;
 924
 925     switch(size) {
 926     default:
 927     case 1:
 928         val = cpu_inb(NULL, addr);
 929         suffix = 'b';
 930         break;
 931     case 2:
 932         val = cpu_inw(NULL, addr);
 933         suffix = 'w';
 934         break;
 935     case 4:
 936         val = cpu_inl(NULL, addr);
 937         suffix = 'l';
 938         break;
 939     }
 940     term_printf("port%c[0x%04x] = %#0*x\n",
 941                 suffix, addr, size * 2, val);
 942 }
 943
 944 static void do_system_reset(void)
 945 {
 946     qemu_system_reset_request();
 947 }
 948
 949 static void do_system_powerdown(void)
 950 {
 951     qemu_system_powerdown_request();
 952 }
 953
 954 #if defined(TARGET_I386)
 955 static void print_pte(uint32_t addr, uint32_t pte, uint32_t mask)
 956 {
 957     term_printf("%08x: %08x %c%c%c%c%c%c%c%c\n",
 958                 addr,
 959                 pte & mask,
 960                 pte & PG_GLOBAL_MASK ? 'G' : '-',
 961                 pte & PG_PSE_MASK ? 'P' : '-',
 962                 pte & PG_DIRTY_MASK ? 'D' : '-',
 963                 pte & PG_ACCESSED_MASK ? 'A' : '-',
 964                 pte & PG_PCD_MASK ? 'C' : '-',
 965                 pte & PG_PWT_MASK ? 'T' : '-',
 966                 pte & PG_USER_MASK ? 'U' : '-',
 967                 pte & PG_RW_MASK ? 'W' : '-');
 968 }
 969
 970 static void tlb_info(void)
 971 {
 972     CPUState *env;
 973     int l1, l2;
 974     uint32_t pgd, pde, pte;
 975
 976     env = mon_get_cpu();
 977     if (!env)
 978         return;
 979
 980     if (!(env->cr[0] & CR0_PG_MASK)) {
 981         term_printf("PG disabled\n");
 982         return;
 983     }
 984     pgd = env->cr[3] & ~0xfff;
 985     for(l1 = 0; l1 < 1024; l1++) {
 986         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
 987         pde = le32_to_cpu(pde);
 988         if (pde & PG_PRESENT_MASK) {
 989             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
 990                 print_pte((l1 << 22), pde, ~((1 << 20) - 1));
 991             } else {
 992                 for(l2 = 0; l2 < 1024; l2++) {
 993                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
 994                                              (uint8_t *)&pte, 4);
 995                     pte = le32_to_cpu(pte);
 996                     if (pte & PG_PRESENT_MASK) {
 997                         print_pte((l1 << 22) + (l2 << 12),
 998                                   pte & ~PG_PSE_MASK,
 999                                   ~0xfff);
1000                     }
1001                 }
1002             }
1003         }
1004     }
1005 }
1006
1007 static void mem_print(uint32_t *pstart, int *plast_prot,
1008                       uint32_t end, int prot)
1009 {
1010     int prot1;
1011     prot1 = *plast_prot;
1012     if (prot != prot1) {
1013         if (*pstart != -1) {
1014             term_printf("%08x-%08x %08x %c%c%c\n",
1015                         *pstart, end, end - *pstart,
1016                         prot1 & PG_USER_MASK ? 'u' : '-',
1017                         'r',
1018                         prot1 & PG_RW_MASK ? 'w' : '-');
1019         }
1020         if (prot != 0)
1021             *pstart = end;
1022         else
1023             *pstart = -1;
1024         *plast_prot = prot;
1025     }
1026 }
1027
1028 static void mem_info(void)
1029 {
1030     CPUState *env;
1031     int l1, l2, prot, last_prot;
1032     uint32_t pgd, pde, pte, start, end;
1033
1034     env = mon_get_cpu();
1035     if (!env)
1036         return;
1037
1038     if (!(env->cr[0] & CR0_PG_MASK)) {
1039         term_printf("PG disabled\n");
1040         return;
1041     }
1042     pgd = env->cr[3] & ~0xfff;
1043     last_prot = 0;
1044     start = -1;
1045     for(l1 = 0; l1 < 1024; l1++) {
1046         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1047         pde = le32_to_cpu(pde);
1048         end = l1 << 22;
1049         if (pde & PG_PRESENT_MASK) {
1050             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1051                 prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1052                 mem_print(&start, &last_prot, end, prot);
1053             } else {
1054                 for(l2 = 0; l2 < 1024; l2++) {
1055                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1056                                              (uint8_t *)&pte, 4);
1057                     pte = le32_to_cpu(pte);
1058                     end = (l1 << 22) + (l2 << 12);
1059                     if (pte & PG_PRESENT_MASK) {
1060                         prot = pte & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1061                     } else {
1062                         prot = 0;
1063                     }
1064                     mem_print(&start, &last_prot, end, prot);
1065                 }
1066             }
1067         } else {
1068             prot = 0;
1069             mem_print(&start, &last_prot, end, prot);
1070         }
1071     }
1072 }
1073 #endif
1074
1075 static void do_info_kqemu(void)
1076 {
1077 #ifdef USE_KQEMU
1078     CPUState *env;
1079     int val;
1080     val = 0;
1081     env = mon_get_cpu();
1082     if (!env) {
1083         term_printf("No cpu initialized yet");
1084         return;
1085     }
1086     val = env->kqemu_enabled;
1087     term_printf("kqemu support: ");
1088     switch(val) {
1089     default:
1090     case 0:
1091         term_printf("disabled\n");
1092         break;
1093     case 1:
1094         term_printf("enabled for user code\n");
1095         break;
1096     case 2:
1097         term_printf("enabled for user and kernel code\n");
1098         break;
1099     }
1100 #else
1101     term_printf("kqemu support: not compiled\n");
1102 #endif
1103 }
1104
1105 #ifdef CONFIG_PROFILER
1106
1107 int64_t kqemu_time;
1108 int64_t qemu_time;
1109 int64_t kqemu_exec_count;
1110 int64_t dev_time;
1111 int64_t kqemu_ret_int_count;
1112 int64_t kqemu_ret_excp_count;
1113 int64_t kqemu_ret_intr_count;
1114
1115 static void do_info_profile(void)
1116 {
1117     int64_t total;
1118     total = qemu_time;
1119     if (total == 0)
1120         total = 1;
1121     term_printf("async time  %" PRId64 " (%0.3f)\n",
1122                 dev_time, dev_time / (double)ticks_per_sec);
1123     term_printf("qemu time   %" PRId64 " (%0.3f)\n",
1124                 qemu_time, qemu_time / (double)ticks_per_sec);
1125     term_printf("kqemu time  %" PRId64 " (%0.3f %0.1f%%) count=%" PRId64 " int=%" PRId64 " excp=%" PRId64 " intr=%" PRId64 "\n",
1126                 kqemu_time, kqemu_time / (double)ticks_per_sec,
1127                 kqemu_time / (double)total * 100.0,
1128                 kqemu_exec_count,
1129                 kqemu_ret_int_count,
1130                 kqemu_ret_excp_count,
1131                 kqemu_ret_intr_count);
1132     qemu_time = 0;
1133     kqemu_time = 0;
1134     kqemu_exec_count = 0;
1135     dev_time = 0;
1136     kqemu_ret_int_count = 0;
1137     kqemu_ret_excp_count = 0;
1138     kqemu_ret_intr_count = 0;
1139 #ifdef USE_KQEMU
1140     kqemu_record_dump();
1141 #endif
1142 }
1143 #else
1144 static void do_info_profile(void)
1145 {
1146     term_printf("Internal profiler not compiled\n");
1147 }
1148 #endif
1149
1150 /* Capture support */
1151 static LIST_HEAD (capture_list_head, CaptureState) capture_head;
1152
1153 static void do_info_capture (void)
1154 {
1155     int i;
1156     CaptureState *s;
1157
1158     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1159         term_printf ("[%d]: ", i);
1160         s->ops.info (s->opaque);
1161     }
1162 }
1163
1164 static void do_stop_capture (int n)
1165 {
1166     int i;
1167     CaptureState *s;
1168
1169     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1170         if (i == n) {
1171             s->ops.destroy (s->opaque);
1172             LIST_REMOVE (s, entries);
1173             qemu_free (s);
1174             return;
1175         }
1176     }
1177 }
1178
1179 #ifdef HAS_AUDIO
1180 int wav_start_capture (CaptureState *s, const char *path, int freq,
1181                        int bits, int nchannels);
1182
1183 static void do_wav_capture (const char *path,
1184                             int has_freq, int freq,
1185                             int has_bits, int bits,
1186                             int has_channels, int nchannels)
1187 {
1188     CaptureState *s;
1189
1190     s = qemu_mallocz (sizeof (*s));
1191     if (!s) {
1192         term_printf ("Not enough memory to add wave capture\n");
1193         return;
1194     }
1195
1196     freq = has_freq ? freq : 44100;
1197     bits = has_bits ? bits : 16;
1198     nchannels = has_channels ? nchannels : 2;
1199
1200     if (wav_start_capture (s, path, freq, bits, nchannels)) {
1201         term_printf ("Faied to add wave capture\n");
1202         qemu_free (s);
1203     }
1204     LIST_INSERT_HEAD (&capture_head, s, entries);
1205 }
1206 #endif
1207
1208 static term_cmd_t term_cmds[] = {
1209     { "help|?", "s?", do_help,
1210       "[cmd]", "show the help" },
1211     { "commit", "s", do_commit,
1212       "device|all", "commit changes to the disk images (if -snapshot is used) or backing files" },
1213     { "info", "s?", do_info,
1214       "subcommand", "show various information about the system state" },
1215     { "q|quit", "", do_quit,
1216       "", "quit the emulator" },
1217     { "eject", "-fB", do_eject,
1218       "[-f] device", "eject a removable medium (use -f to force it)" },
1219     { "change", "BF", do_change,
1220       "device filename", "change a removable medium" },
1221     { "screendump", "F", do_screen_dump,
1222       "filename", "save screen into PPM image 'filename'" },
1223     { "log", "s", do_log,
1224       "item1[,...]", "activate logging of the specified items to '/tmp/qemu.log'" },
1225     { "savevm", "s?", do_savevm,
1226       "tag|id", "save a VM snapshot. If no tag or id are provided, a new snapshot is created" },
1227     { "loadvm", "s", do_loadvm,
1228       "tag|id", "restore a VM snapshot from its tag or id" },
1229     { "delvm", "s", do_delvm,
1230       "tag|id", "delete a VM snapshot from its tag or id" },
1231     { "stop", "", do_stop,
1232       "", "stop emulation", },
1233     { "c|cont", "", do_cont,
1234       "", "resume emulation", },
1235 #ifdef CONFIG_GDBSTUB
1236     { "gdbserver", "s?", do_gdbserver,
1237       "[port]", "start gdbserver session (default port=1234)", },
1238 #endif
1239     { "x", "/l", do_memory_dump,
1240       "/fmt addr", "virtual memory dump starting at 'addr'", },
1241     { "xp", "/l", do_physical_memory_dump,
1242       "/fmt addr", "physical memory dump starting at 'addr'", },
1243     { "p|print", "/l", do_print,
1244       "/fmt expr", "print expression value (use $reg for CPU register access)", },
1245     { "i", "/ii.", do_ioport_read,
1246       "/fmt addr", "I/O port read" },
1247
1248     { "sendkey", "s", do_send_key,
1249       "keys", "send keys to the VM (e.g. 'sendkey ctrl-alt-f1')" },
1250     { "system_reset", "", do_system_reset,
1251       "", "reset the system" },
1252     { "system_powerdown", "", do_system_powerdown,
1253       "", "send system power down event" },
1254     { "sum", "ii", do_sum,
1255       "addr size", "compute the checksum of a memory region" },
1256     { "usb_add", "s", do_usb_add,
1257       "device", "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')" },
1258     { "usb_del", "s", do_usb_del,
1259       "device", "remove USB device 'bus.addr'" },
1260     { "cpu", "i", do_cpu_set,
1261       "index", "set the default CPU" },
1262     { "mouse_move", "sss?", do_mouse_move,
1263       "dx dy [dz]", "send mouse move events" },
1264     { "mouse_button", "i", do_mouse_button,
1265       "state", "change mouse button state (1=L, 2=M, 4=R)" },
1266     { "mouse_set", "i", do_mouse_set,
1267       "index", "set which mouse device receives events" },
1268 #ifdef HAS_AUDIO
1269     { "wavcapture", "si?i?i?", do_wav_capture,
1270       "path [frequency bits channels]",
1271       "capture audio to a wave file (default frequency=44100 bits=16 channels=2)" },
1272 #endif
1273      { "stopcapture", "i", do_stop_capture,
1274        "capture index", "stop capture" },
1275     { "memsave", "lis", do_memory_save,
1276       "addr size file", "save to disk virtual memory dump starting at 'addr' of size 'size'", },
1277     { NULL, NULL, },
1278 };
1279
1280 static term_cmd_t info_cmds[] = {
1281     { "version", "", do_info_version,
1282       "", "show the version of qemu" },
1283     { "network", "", do_info_network,
1284       "", "show the network state" },
1285     { "block", "", do_info_block,
1286       "", "show the block devices" },
1287     { "registers", "", do_info_registers,
1288       "", "show the cpu registers" },
1289     { "cpus", "", do_info_cpus,
1290       "", "show infos for each CPU" },
1291     { "history", "", do_info_history,
1292       "", "show the command line history", },
1293     { "irq", "", irq_info,
1294       "", "show the interrupts statistics (if available)", },
1295     { "pic", "", pic_info,
1296       "", "show i8259 (PIC) state", },
1297     { "pci", "", pci_info,
1298       "", "show PCI info", },
1299 #if defined(TARGET_I386)
1300     { "tlb", "", tlb_info,
1301       "", "show virtual to physical memory mappings", },
1302     { "mem", "", mem_info,
1303       "", "show the active virtual memory mappings", },
1304 #endif
1305     { "jit", "", do_info_jit,
1306       "", "show dynamic compiler info", },
1307     { "kqemu", "", do_info_kqemu,
1308       "", "show kqemu information", },
1309     { "usb", "", usb_info,
1310       "", "show guest USB devices", },
1311     { "usbhost", "", usb_host_info,
1312       "", "show host USB devices", },
1313     { "profile", "", do_info_profile,
1314       "", "show profiling information", },
1315     { "capture", "", do_info_capture,
1316       "", "show capture information" },
1317     { "snapshots", "", do_info_snapshots,
1318       "", "show the currently saved VM snapshots" },
1319     { "mice", "", do_info_mice,
1320       "", "show which guest mouse is receiving events" },
1321     { "vnc", "", do_info_vnc,
1322       "", "show the vnc server status"},
1323     { "name", "", do_info_name,
1324       "", "show the current VM name" },
1325 #if defined(TARGET_PPC)
1326     { "cpustats", "", do_info_cpu_stats,
1327       "", "show CPU statistics", },
1328 #endif
1329     { NULL, NULL, },
1330 };
1331
1332 /*******************************************************************/
1333
1334 static const char *pch;
1335 static jmp_buf expr_env;
1336
1337 #define MD_TLONG 0
1338 #define MD_I32   1
1339
1340 typedef struct MonitorDef {
1341     const char *name;
1342     int offset;
1343     target_long (*get_value)(struct MonitorDef *md, int val);
1344     int type;
1345 } MonitorDef;
1346
1347 #if defined(TARGET_I386)
1348 static target_long monitor_get_pc (struct MonitorDef *md, int val)
1349 {
1350     CPUState *env = mon_get_cpu();
1351     if (!env)
1352         return 0;
1353     return env->eip + env->segs[R_CS].base;
1354 }
1355 #endif
1356
1357 #if defined(TARGET_PPC)
1358 static target_long monitor_get_ccr (struct MonitorDef *md, int val)
1359 {
1360     CPUState *env = mon_get_cpu();
1361     unsigned int u;
1362     int i;
1363
1364     if (!env)
1365         return 0;
1366
1367     u = 0;
1368     for (i = 0; i < 8; i++)
1369         u |= env->crf[i] << (32 - (4 * i));
1370
1371     return u;
1372 }
1373
1374 static target_long monitor_get_msr (struct MonitorDef *md, int val)
1375 {
1376     CPUState *env = mon_get_cpu();
1377     if (!env)
1378         return 0;
1379     return (env->msr[MSR_POW] << MSR_POW) |
1380         (env->msr[MSR_ILE] << MSR_ILE) |
1381         (env->msr[MSR_EE] << MSR_EE) |
1382         (env->msr[MSR_PR] << MSR_PR) |
1383         (env->msr[MSR_FP] << MSR_FP) |
1384         (env->msr[MSR_ME] << MSR_ME) |
1385         (env->msr[MSR_FE0] << MSR_FE0) |
1386         (env->msr[MSR_SE] << MSR_SE) |
1387         (env->msr[MSR_BE] << MSR_BE) |
1388         (env->msr[MSR_FE1] << MSR_FE1) |
1389         (env->msr[MSR_IP] << MSR_IP) |
1390         (env->msr[MSR_IR] << MSR_IR) |
1391         (env->msr[MSR_DR] << MSR_DR) |
1392         (env->msr[MSR_RI] << MSR_RI) |
1393         (env->msr[MSR_LE] << MSR_LE);
1394 }
1395
1396 static target_long monitor_get_xer (struct MonitorDef *md, int val)
1397 {
1398     CPUState *env = mon_get_cpu();
1399     if (!env)
1400         return 0;
1401     return (env->xer[XER_SO] << XER_SO) |
1402         (env->xer[XER_OV] << XER_OV) |
1403         (env->xer[XER_CA] << XER_CA) |
1404         (env->xer[XER_BC] << XER_BC);
1405 }
1406
1407 static target_long monitor_get_decr (struct MonitorDef *md, int val)
1408 {
1409     CPUState *env = mon_get_cpu();
1410     if (!env)
1411         return 0;
1412     return cpu_ppc_load_decr(env);
1413 }
1414
1415 static target_long monitor_get_tbu (struct MonitorDef *md, int val)
1416 {
1417     CPUState *env = mon_get_cpu();
1418     if (!env)
1419         return 0;
1420     return cpu_ppc_load_tbu(env);
1421 }
1422
1423 static target_long monitor_get_tbl (struct MonitorDef *md, int val)
1424 {
1425     CPUState *env = mon_get_cpu();
1426     if (!env)
1427         return 0;
1428     return cpu_ppc_load_tbl(env);
1429 }
1430 #endif
1431
1432 #if defined(TARGET_SPARC)
1433 #ifndef TARGET_SPARC64
1434 static target_long monitor_get_psr (struct MonitorDef *md, int val)
1435 {
1436     CPUState *env = mon_get_cpu();
1437     if (!env)
1438         return 0;
1439     return GET_PSR(env);
1440 }
1441 #endif
1442
1443 static target_long monitor_get_reg(struct MonitorDef *md, int val)
1444 {
1445     CPUState *env = mon_get_cpu();
1446     if (!env)
1447         return 0;
1448     return env->regwptr[val];
1449 }
1450 #endif
1451
1452 static MonitorDef monitor_defs[] = {
1453 #ifdef TARGET_I386
1454
1455 #define SEG(name, seg) \
1456     { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
1457     { name ".base", offsetof(CPUState, segs[seg].base) },\
1458     { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },
1459
1460     { "eax", offsetof(CPUState, regs[0]) },
1461     { "ecx", offsetof(CPUState, regs[1]) },
1462     { "edx", offsetof(CPUState, regs[2]) },
1463     { "ebx", offsetof(CPUState, regs[3]) },
1464     { "esp|sp", offsetof(CPUState, regs[4]) },
1465     { "ebp|fp", offsetof(CPUState, regs[5]) },
1466     { "esi", offsetof(CPUState, regs[6]) },
1467     { "edi", offsetof(CPUState, regs[7]) },
1468 #ifdef TARGET_X86_64
1469     { "r8", offsetof(CPUState, regs[8]) },
1470     { "r9", offsetof(CPUState, regs[9]) },
1471     { "r10", offsetof(CPUState, regs[10]) },
1472     { "r11", offsetof(CPUState, regs[11]) },
1473     { "r12", offsetof(CPUState, regs[12]) },
1474     { "r13", offsetof(CPUState, regs[13]) },
1475     { "r14", offsetof(CPUState, regs[14]) },
1476     { "r15", offsetof(CPUState, regs[15]) },
1477 #endif
1478     { "eflags", offsetof(CPUState, eflags) },
1479     { "eip", offsetof(CPUState, eip) },
1480     SEG("cs", R_CS)
1481     SEG("ds", R_DS)
1482     SEG("es", R_ES)
1483     SEG("ss", R_SS)
1484     SEG("fs", R_FS)
1485     SEG("gs", R_GS)
1486     { "pc", 0, monitor_get_pc, },
1487 #elif defined(TARGET_PPC)
1488     { "r0", offsetof(CPUState, gpr[0]) },
1489     { "r1", offsetof(CPUState, gpr[1]) },
1490     { "r2", offsetof(CPUState, gpr[2]) },
1491     { "r3", offsetof(CPUState, gpr[3]) },
1492     { "r4", offsetof(CPUState, gpr[4]) },
1493     { "r5", offsetof(CPUState, gpr[5]) },
1494     { "r6", offsetof(CPUState, gpr[6]) },
1495     { "r7", offsetof(CPUState, gpr[7]) },
1496     { "r8", offsetof(CPUState, gpr[8]) },
1497     { "r9", offsetof(CPUState, gpr[9]) },
1498     { "r10", offsetof(CPUState, gpr[10]) },
1499     { "r11", offsetof(CPUState, gpr[11]) },
1500     { "r12", offsetof(CPUState, gpr[12]) },
1501     { "r13", offsetof(CPUState, gpr[13]) },
1502     { "r14", offsetof(CPUState, gpr[14]) },
1503     { "r15", offsetof(CPUState, gpr[15]) },
1504     { "r16", offsetof(CPUState, gpr[16]) },
1505     { "r17", offsetof(CPUState, gpr[17]) },
1506     { "r18", offsetof(CPUState, gpr[18]) },
1507     { "r19", offsetof(CPUState, gpr[19]) },
1508     { "r20", offsetof(CPUState, gpr[20]) },
1509     { "r21", offsetof(CPUState, gpr[21]) },
1510     { "r22", offsetof(CPUState, gpr[22]) },
1511     { "r23", offsetof(CPUState, gpr[23]) },
1512     { "r24", offsetof(CPUState, gpr[24]) },
1513     { "r25", offsetof(CPUState, gpr[25]) },
1514     { "r26", offsetof(CPUState, gpr[26]) },
1515     { "r27", offsetof(CPUState, gpr[27]) },
1516     { "r28", offsetof(CPUState, gpr[28]) },
1517     { "r29", offsetof(CPUState, gpr[29]) },
1518     { "r30", offsetof(CPUState, gpr[30]) },
1519     { "r31", offsetof(CPUState, gpr[31]) },
1520     { "nip|pc", offsetof(CPUState, nip) },
1521     { "lr", offsetof(CPUState, lr) },
1522     { "ctr", offsetof(CPUState, ctr) },
1523     { "decr", 0, &monitor_get_decr, },
1524     { "ccr", 0, &monitor_get_ccr, },
1525     { "msr", 0, &monitor_get_msr, },
1526     { "xer", 0, &monitor_get_xer, },
1527     { "tbu", 0, &monitor_get_tbu, },
1528     { "tbl", 0, &monitor_get_tbl, },
1529     { "sdr1", offsetof(CPUState, sdr1) },
1530     { "sr0", offsetof(CPUState, sr[0]) },
1531     { "sr1", offsetof(CPUState, sr[1]) },
1532     { "sr2", offsetof(CPUState, sr[2]) },
1533     { "sr3", offsetof(CPUState, sr[3]) },
1534     { "sr4", offsetof(CPUState, sr[4]) },
1535     { "sr5", offsetof(CPUState, sr[5]) },
1536     { "sr6", offsetof(CPUState, sr[6]) },
1537     { "sr7", offsetof(CPUState, sr[7]) },
1538     { "sr8", offsetof(CPUState, sr[8]) },
1539     { "sr9", offsetof(CPUState, sr[9]) },
1540     { "sr10", offsetof(CPUState, sr[10]) },
1541     { "sr11", offsetof(CPUState, sr[11]) },
1542     { "sr12", offsetof(CPUState, sr[12]) },
1543     { "sr13", offsetof(CPUState, sr[13]) },
1544     { "sr14", offsetof(CPUState, sr[14]) },
1545     { "sr15", offsetof(CPUState, sr[15]) },
1546     /* Too lazy to put BATs and SPRs ... */
1547 #elif defined(TARGET_SPARC)
1548     { "g0", offsetof(CPUState, gregs[0]) },
1549     { "g1", offsetof(CPUState, gregs[1]) },
1550     { "g2", offsetof(CPUState, gregs[2]) },
1551     { "g3", offsetof(CPUState, gregs[3]) },
1552     { "g4", offsetof(CPUState, gregs[4]) },
1553     { "g5", offsetof(CPUState, gregs[5]) },
1554     { "g6", offsetof(CPUState, gregs[6]) },
1555     { "g7", offsetof(CPUState, gregs[7]) },
1556     { "o0", 0, monitor_get_reg },
1557     { "o1", 1, monitor_get_reg },
1558     { "o2", 2, monitor_get_reg },
1559     { "o3", 3, monitor_get_reg },
1560     { "o4", 4, monitor_get_reg },
1561     { "o5", 5, monitor_get_reg },
1562     { "o6", 6, monitor_get_reg },
1563     { "o7", 7, monitor_get_reg },
1564     { "l0", 8, monitor_get_reg },
1565     { "l1", 9, monitor_get_reg },
1566     { "l2", 10, monitor_get_reg },
1567     { "l3", 11, monitor_get_reg },
1568     { "l4", 12, monitor_get_reg },
1569     { "l5", 13, monitor_get_reg },
1570     { "l6", 14, monitor_get_reg },
1571     { "l7", 15, monitor_get_reg },
1572     { "i0", 16, monitor_get_reg },
1573     { "i1", 17, monitor_get_reg },
1574     { "i2", 18, monitor_get_reg },
1575     { "i3", 19, monitor_get_reg },
1576     { "i4", 20, monitor_get_reg },
1577     { "i5", 21, monitor_get_reg },
1578     { "i6", 22, monitor_get_reg },
1579     { "i7", 23, monitor_get_reg },
1580     { "pc", offsetof(CPUState, pc) },
1581     { "npc", offsetof(CPUState, npc) },
1582     { "y", offsetof(CPUState, y) },
1583 #ifndef TARGET_SPARC64
1584     { "psr", 0, &monitor_get_psr, },
1585     { "wim", offsetof(CPUState, wim) },
1586 #endif
1587     { "tbr", offsetof(CPUState, tbr) },
1588     { "fsr", offsetof(CPUState, fsr) },
1589     { "f0", offsetof(CPUState, fpr[0]) },
1590     { "f1", offsetof(CPUState, fpr[1]) },
1591     { "f2", offsetof(CPUState, fpr[2]) },
1592     { "f3", offsetof(CPUState, fpr[3]) },
1593     { "f4", offsetof(CPUState, fpr[4]) },
1594     { "f5", offsetof(CPUState, fpr[5]) },
1595     { "f6", offsetof(CPUState, fpr[6]) },
1596     { "f7", offsetof(CPUState, fpr[7]) },
1597     { "f8", offsetof(CPUState, fpr[8]) },
1598     { "f9", offsetof(CPUState, fpr[9]) },
1599     { "f10", offsetof(CPUState, fpr[10]) },
1600     { "f11", offsetof(CPUState, fpr[11]) },
1601     { "f12", offsetof(CPUState, fpr[12]) },
1602     { "f13", offsetof(CPUState, fpr[13]) },
1603     { "f14", offsetof(CPUState, fpr[14]) },
1604     { "f15", offsetof(CPUState, fpr[15]) },
1605     { "f16", offsetof(CPUState, fpr[16]) },
1606     { "f17", offsetof(CPUState, fpr[17]) },
1607     { "f18", offsetof(CPUState, fpr[18]) },
1608     { "f19", offsetof(CPUState, fpr[19]) },
1609     { "f20", offsetof(CPUState, fpr[20]) },
1610     { "f21", offsetof(CPUState, fpr[21]) },
1611     { "f22", offsetof(CPUState, fpr[22]) },
1612     { "f23", offsetof(CPUState, fpr[23]) },
1613     { "f24", offsetof(CPUState, fpr[24]) },
1614     { "f25", offsetof(CPUState, fpr[25]) },
1615     { "f26", offsetof(CPUState, fpr[26]) },
1616     { "f27", offsetof(CPUState, fpr[27]) },
1617     { "f28", offsetof(CPUState, fpr[28]) },
1618     { "f29", offsetof(CPUState, fpr[29]) },
1619     { "f30", offsetof(CPUState, fpr[30]) },
1620     { "f31", offsetof(CPUState, fpr[31]) },
1621 #ifdef TARGET_SPARC64
1622     { "f32", offsetof(CPUState, fpr[32]) },
1623     { "f34", offsetof(CPUState, fpr[34]) },
1624     { "f36", offsetof(CPUState, fpr[36]) },
1625     { "f38", offsetof(CPUState, fpr[38]) },
1626     { "f40", offsetof(CPUState, fpr[40]) },
1627     { "f42", offsetof(CPUState, fpr[42]) },
1628     { "f44", offsetof(CPUState, fpr[44]) },
1629     { "f46", offsetof(CPUState, fpr[46]) },
1630     { "f48", offsetof(CPUState, fpr[48]) },
1631     { "f50", offsetof(CPUState, fpr[50]) },
1632     { "f52", offsetof(CPUState, fpr[52]) },
1633     { "f54", offsetof(CPUState, fpr[54]) },
1634     { "f56", offsetof(CPUState, fpr[56]) },
1635     { "f58", offsetof(CPUState, fpr[58]) },
1636     { "f60", offsetof(CPUState, fpr[60]) },
1637     { "f62", offsetof(CPUState, fpr[62]) },
1638     { "asi", offsetof(CPUState, asi) },
1639     { "pstate", offsetof(CPUState, pstate) },
1640     { "cansave", offsetof(CPUState, cansave) },
1641     { "canrestore", offsetof(CPUState, canrestore) },
1642     { "otherwin", offsetof(CPUState, otherwin) },
1643     { "wstate", offsetof(CPUState, wstate) },
1644     { "cleanwin", offsetof(CPUState, cleanwin) },
1645     { "fprs", offsetof(CPUState, fprs) },
1646 #endif
1647 #endif
1648     { NULL },
1649 };
1650
1651 static void expr_error(const char *fmt)
1652 {
1653     term_printf(fmt);
1654     term_printf("\n");
1655     longjmp(expr_env, 1);
1656 }
1657
1658 /* return 0 if OK, -1 if not found, -2 if no CPU defined */
1659 static int get_monitor_def(target_long *pval, const char *name)
1660 {
1661     MonitorDef *md;
1662     void *ptr;
1663
1664     for(md = monitor_defs; md->name != NULL; md++) {
1665         if (compare_cmd(name, md->name)) {
1666             if (md->get_value) {
1667                 *pval = md->get_value(md, md->offset);
1668             } else {
1669                 CPUState *env = mon_get_cpu();
1670                 if (!env)
1671                     return -2;
1672                 ptr = (uint8_t *)env + md->offset;
1673                 switch(md->type) {
1674                 case MD_I32:
1675                     *pval = *(int32_t *)ptr;
1676                     break;
1677                 case MD_TLONG:
1678                     *pval = *(target_long *)ptr;
1679                     break;
1680                 default:
1681                     *pval = 0;
1682                     break;
1683                 }
1684             }
1685             return 0;
1686         }
1687     }
1688     return -1;
1689 }
1690
1691 static void next(void)
1692 {
1693     if (pch != '\0') {
1694         pch++;
1695         while (isspace(*pch))
1696             pch++;
1697     }
1698 }
1699
1700 static target_long expr_sum(void);
1701
1702 static target_long expr_unary(void)
1703 {
1704     target_long n;
1705     char *p;
1706     int ret;
1707
1708     switch(*pch) {
1709     case '+':
1710         next();
1711         n = expr_unary();
1712         break;
1713     case '-':
1714         next();
1715         n = -expr_unary();
1716         break;
1717     case '~':
1718         next();
1719         n = ~expr_unary();
1720         break;
1721     case '(':
1722         next();
1723         n = expr_sum();
1724         if (*pch != ')') {
1725             expr_error("')' expected");
1726         }
1727         next();
1728         break;
1729     case '\'':
1730         pch++;
1731         if (*pch == '\0')
1732             expr_error("character constant expected");
1733         n = *pch;
1734         pch++;
1735         if (*pch != '\'')
1736             expr_error("missing terminating \' character");
1737         next();
1738         break;
1739     case '$':
1740         {
1741             char buf[128], *q;
1742
1743             pch++;
1744             q = buf;
1745             while ((*pch >= 'a' && *pch <= 'z') ||
1746                    (*pch >= 'A' && *pch <= 'Z') ||
1747                    (*pch >= '0' && *pch <= '9') ||
1748                    *pch == '_' || *pch == '.') {
1749                 if ((q - buf) < sizeof(buf) - 1)
1750                     *q++ = *pch;
1751                 pch++;
1752             }
1753             while (isspace(*pch))
1754                 pch++;
1755             *q = 0;
1756             ret = get_monitor_def(&n, buf);
1757             if (ret == -1)
1758                 expr_error("unknown register");
1759             else if (ret == -2)
1760                 expr_error("no cpu defined");
1761         }
1762         break;
1763     case '\0':
1764         expr_error("unexpected end of expression");
1765         n = 0;
1766         break;
1767     default:
1768 #if TARGET_LONG_BITS == 64
1769         n = strtoull(pch, &p, 0);
1770 #else
1771         n = strtoul(pch, &p, 0);
1772 #endif
1773         if (pch == p) {
1774             expr_error("invalid char in expression");
1775         }
1776         pch = p;
1777         while (isspace(*pch))
1778             pch++;
1779         break;
1780     }
1781     return n;
1782 }
1783
1784
1785 static target_long expr_prod(void)
1786 {
1787     target_long val, val2;
1788     int op;
1789
1790     val = expr_unary();
1791     for(;;) {
1792         op = *pch;
1793         if (op != '*' && op != '/' && op != '%')
1794             break;
1795         next();
1796         val2 = expr_unary();
1797         switch(op) {
1798         default:
1799         case '*':
1800             val *= val2;
1801             break;
1802         case '/':
1803         case '%':
1804             if (val2 == 0)
1805                 expr_error("division by zero");
1806             if (op == '/')
1807                 val /= val2;
1808             else
1809                 val %= val2;
1810             break;
1811         }
1812     }
1813     return val;
1814 }
1815
1816 static target_long expr_logic(void)
1817 {
1818     target_long val, val2;
1819     int op;
1820
1821     val = expr_prod();
1822     for(;;) {
1823         op = *pch;
1824         if (op != '&' && op != '|' && op != '^')
1825             break;
1826         next();
1827         val2 = expr_prod();
1828         switch(op) {
1829         default:
1830         case '&':
1831             val &= val2;
1832             break;
1833         case '|':
1834             val |= val2;
1835             break;
1836         case '^':
1837             val ^= val2;
1838             break;
1839         }
1840     }
1841     return val;
1842 }
1843
1844 static target_long expr_sum(void)
1845 {
1846     target_long val, val2;
1847     int op;
1848
1849     val = expr_logic();
1850     for(;;) {
1851         op = *pch;
1852         if (op != '+' && op != '-')
1853             break;
1854         next();
1855         val2 = expr_logic();
1856         if (op == '+')
1857             val += val2;
1858         else
1859             val -= val2;
1860     }
1861     return val;
1862 }
1863
1864 static int get_expr(target_long *pval, const char **pp)
1865 {
1866     pch = *pp;
1867     if (setjmp(expr_env)) {
1868         *pp = pch;
1869         return -1;
1870     }
1871     while (isspace(*pch))
1872         pch++;
1873     *pval = expr_sum();
1874     *pp = pch;
1875     return 0;
1876 }
1877
1878 static int get_str(char *buf, int buf_size, const char **pp)
1879 {
1880     const char *p;
1881     char *q;
1882     int c;
1883
1884     q = buf;
1885     p = *pp;
1886     while (isspace(*p))
1887         p++;
1888     if (*p == '\0') {
1889     fail:
1890         *q = '\0';
1891         *pp = p;
1892         return -1;
1893     }
1894     if (*p == '\"') {
1895         p++;
1896         while (*p != '\0' && *p != '\"') {
1897             if (*p == '\\') {
1898                 p++;
1899                 c = *p++;
1900                 switch(c) {
1901                 case 'n':
1902                     c = '\n';
1903                     break;
1904                 case 'r':
1905                     c = '\r';
1906                     break;
1907                 case '\\':
1908                 case '\'':
1909                 case '\"':
1910                     break;
1911                 default:
1912                     qemu_printf("unsupported escape code: '\\%c'\n", c);
1913                     goto fail;
1914                 }
1915                 if ((q - buf) < buf_size - 1) {
1916                     *q++ = c;
1917                 }
1918             } else {
1919                 if ((q - buf) < buf_size - 1) {
1920                     *q++ = *p;
1921                 }
1922                 p++;
1923             }
1924         }
1925         if (*p != '\"') {
1926             qemu_printf("unterminated string\n");
1927             goto fail;
1928         }
1929         p++;
1930     } else {
1931         while (*p != '\0' && !isspace(*p)) {
1932             if ((q - buf) < buf_size - 1) {
1933                 *q++ = *p;
1934             }
1935             p++;
1936         }
1937     }
1938     *q = '\0';
1939     *pp = p;
1940     return 0;
1941 }
1942
1943 static int default_fmt_format = 'x';
1944 static int default_fmt_size = 4;
1945
1946 #define MAX_ARGS 16
1947
1948 static void monitor_handle_command(const char *cmdline)
1949 {
1950     const char *p, *pstart, *typestr;
1951     char *q;
1952     int c, nb_args, len, i, has_arg;
1953     term_cmd_t *cmd;
1954     char cmdname[256];
1955     char buf[1024];
1956     void *str_allocated[MAX_ARGS];
1957     void *args[MAX_ARGS];
1958
1959 #ifdef DEBUG
1960     term_printf("command='%s'\n", cmdline);
1961 #endif
1962
1963     /* extract the command name */
1964     p = cmdline;
1965     q = cmdname;
1966     while (isspace(*p))
1967         p++;
1968     if (*p == '\0')
1969         return;
1970     pstart = p;
1971     while (*p != '\0' && *p != '/' && !isspace(*p))
1972         p++;
1973     len = p - pstart;
1974     if (len > sizeof(cmdname) - 1)
1975         len = sizeof(cmdname) - 1;
1976     memcpy(cmdname, pstart, len);
1977     cmdname[len] = '\0';
1978
1979     /* find the command */
1980     for(cmd = term_cmds; cmd->name != NULL; cmd++) {
1981         if (compare_cmd(cmdname, cmd->name))
1982             goto found;
1983     }
1984     term_printf("unknown command: '%s'\n", cmdname);
1985     return;
1986  found:
1987
1988     for(i = 0; i < MAX_ARGS; i++)
1989         str_allocated[i] = NULL;
1990
1991     /* parse the parameters */
1992     typestr = cmd->args_type;
1993     nb_args = 0;
1994     for(;;) {
1995         c = *typestr;
1996         if (c == '\0')
1997             break;
1998         typestr++;
1999         switch(c) {
2000         case 'F':
2001         case 'B':
2002         case 's':
2003             {
2004                 int ret;
2005                 char *str;
2006
2007                 while (isspace(*p))
2008                     p++;
2009                 if (*typestr == '?') {
2010                     typestr++;
2011                     if (*p == '\0') {
2012                         /* no optional string: NULL argument */
2013                         str = NULL;
2014                         goto add_str;
2015                     }
2016                 }
2017                 ret = get_str(buf, sizeof(buf), &p);
2018                 if (ret < 0) {
2019                     switch(c) {
2020                     case 'F':
2021                         term_printf("%s: filename expected\n", cmdname);
2022                         break;
2023                     case 'B':
2024                         term_printf("%s: block device name expected\n", cmdname);
2025                         break;
2026                     default:
2027                         term_printf("%s: string expected\n", cmdname);
2028                         break;
2029                     }
2030                     goto fail;
2031                 }
2032                 str = qemu_malloc(strlen(buf) + 1);
2033                 strcpy(str, buf);
2034                 str_allocated[nb_args] = str;
2035             add_str:
2036                 if (nb_args >= MAX_ARGS) {
2037                 error_args:
2038                     term_printf("%s: too many arguments\n", cmdname);
2039                     goto fail;
2040                 }
2041                 args[nb_args++] = str;
2042             }
2043             break;
2044         case '/':
2045             {
2046                 int count, format, size;
2047
2048                 while (isspace(*p))
2049                     p++;
2050                 if (*p == '/') {
2051                     /* format found */
2052                     p++;
2053                     count = 1;
2054                     if (isdigit(*p)) {
2055                         count = 0;
2056                         while (isdigit(*p)) {
2057                             count = count * 10 + (*p - '0');
2058                             p++;
2059                         }
2060                     }
2061                     size = -1;
2062                     format = -1;
2063                     for(;;) {
2064                         switch(*p) {
2065                         case 'o':
2066                         case 'd':
2067                         case 'u':
2068                         case 'x':
2069                         case 'i':
2070                         case 'c':
2071                             format = *p++;
2072                             break;
2073                         case 'b':
2074                             size = 1;
2075                             p++;
2076                             break;
2077                         case 'h':
2078                             size = 2;
2079                             p++;
2080                             break;
2081                         case 'w':
2082                             size = 4;
2083                             p++;
2084                             break;
2085                         case 'g':
2086                         case 'L':
2087                             size = 8;
2088                             p++;
2089                             break;
2090                         default:
2091                             goto next;
2092                         }
2093                     }
2094                 next:
2095                     if (*p != '\0' && !isspace(*p)) {
2096                         term_printf("invalid char in format: '%c'\n", *p);
2097                         goto fail;
2098                     }
2099                     if (format < 0)
2100                         format = default_fmt_format;
2101                     if (format != 'i') {
2102                         /* for 'i', not specifying a size gives -1 as size */
2103                         if (size < 0)
2104                             size = default_fmt_size;
2105                     }
2106                     default_fmt_size = size;
2107                     default_fmt_format = format;
2108                 } else {
2109                     count = 1;
2110                     format = default_fmt_format;
2111                     if (format != 'i') {
2112                         size = default_fmt_size;
2113                     } else {
2114                         size = -1;
2115                     }
2116                 }
2117                 if (nb_args + 3 > MAX_ARGS)
2118                     goto error_args;
2119                 args[nb_args++] = (void*)(long)count;
2120                 args[nb_args++] = (void*)(long)format;
2121                 args[nb_args++] = (void*)(long)size;
2122             }
2123             break;
2124         case 'i':
2125         case 'l':
2126             {
2127                 target_long val;
2128                 while (isspace(*p))
2129                     p++;
2130                 if (*typestr == '?' || *typestr == '.') {
2131                     if (*typestr == '?') {
2132                         if (*p == '\0')
2133                             has_arg = 0;
2134                         else
2135                             has_arg = 1;
2136                     } else {
2137                         if (*p == '.') {
2138                             p++;
2139                             while (isspace(*p))
2140                                 p++;
2141                             has_arg = 1;
2142                         } else {
2143                             has_arg = 0;
2144                         }
2145                     }
2146                     typestr++;
2147                     if (nb_args >= MAX_ARGS)
2148                         goto error_args;
2149                     args[nb_args++] = (void *)(long)has_arg;
2150                     if (!has_arg) {
2151                         if (nb_args >= MAX_ARGS)
2152                             goto error_args;
2153                         val = -1;
2154                         goto add_num;
2155                     }
2156                 }
2157                 if (get_expr(&val, &p))
2158                     goto fail;
2159             add_num:
2160                 if (c == 'i') {
2161                     if (nb_args >= MAX_ARGS)
2162                         goto error_args;
2163                     args[nb_args++] = (void *)(long)val;
2164                 } else {
2165                     if ((nb_args + 1) >= MAX_ARGS)
2166                         goto error_args;
2167 #if TARGET_LONG_BITS == 64
2168                     args[nb_args++] = (void *)(long)((val >> 32) & 0xffffffff);
2169 #else
2170                     args[nb_args++] = (void *)0;
2171 #endif
2172                     args[nb_args++] = (void *)(long)(val & 0xffffffff);
2173                 }
2174             }
2175             break;
2176         case '-':
2177             {
2178                 int has_option;
2179                 /* option */
2180
2181                 c = *typestr++;
2182                 if (c == '\0')
2183                     goto bad_type;
2184                 while (isspace(*p))
2185                     p++;
2186                 has_option = 0;
2187                 if (*p == '-') {
2188                     p++;
2189                     if (*p != c) {
2190                         term_printf("%s: unsupported option -%c\n",
2191                                     cmdname, *p);
2192                         goto fail;
2193                     }
2194                     p++;
2195                     has_option = 1;
2196                 }
2197                 if (nb_args >= MAX_ARGS)
2198                     goto error_args;
2199                 args[nb_args++] = (void *)(long)has_option;
2200             }
2201             break;
2202         default:
2203         bad_type:
2204             term_printf("%s: unknown type '%c'\n", cmdname, c);
2205             goto fail;
2206         }
2207     }
2208     /* check that all arguments were parsed */
2209     while (isspace(*p))
2210         p++;
2211     if (*p != '\0') {
2212         term_printf("%s: extraneous characters at the end of line\n",
2213                     cmdname);
2214         goto fail;
2215     }
2216
2217     switch(nb_args) {
2218     case 0:
2219         cmd->handler();
2220         break;
2221     case 1:
2222         cmd->handler(args[0]);
2223         break;
2224     case 2:
2225         cmd->handler(args[0], args[1]);
2226         break;
2227     case 3:
2228         cmd->handler(args[0], args[1], args[2]);
2229         break;
2230     case 4:
2231         cmd->handler(args[0], args[1], args[2], args[3]);
2232         break;
2233     case 5:
2234         cmd->handler(args[0], args[1], args[2], args[3], args[4]);
2235         break;
2236     case 6:
2237         cmd->handler(args[0], args[1], args[2], args[3], args[4], args[5]);
2238         break;
2239     case 7:
2240         cmd->handler(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
2241         break;
2242     default:
2243         term_printf("unsupported number of arguments: %d\n", nb_args);
2244         goto fail;
2245     }
2246  fail:
2247     for(i = 0; i < MAX_ARGS; i++)
2248         qemu_free(str_allocated[i]);
2249     return;
2250 }
2251
2252 static void cmd_completion(const char *name, const char *list)
2253 {
2254     const char *p, *pstart;
2255     char cmd[128];
2256     int len;
2257
2258     p = list;
2259     for(;;) {
2260         pstart = p;
2261         p = strchr(p, '|');
2262         if (!p)
2263             p = pstart + strlen(pstart);
2264         len = p - pstart;
2265         if (len > sizeof(cmd) - 2)
2266             len = sizeof(cmd) - 2;
2267         memcpy(cmd, pstart, len);
2268         cmd[len] = '\0';
2269         if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
2270             add_completion(cmd);
2271         }
2272         if (*p == '\0')
2273             break;
2274         p++;
2275     }
2276 }
2277
2278 static void file_completion(const char *input)
2279 {
2280     DIR *ffs;
2281     struct dirent *d;
2282     char path[1024];
2283     char file[1024], file_prefix[1024];
2284     int input_path_len;
2285     const char *p;
2286
2287     p = strrchr(input, '/');
2288     if (!p) {
2289         input_path_len = 0;
2290         pstrcpy(file_prefix, sizeof(file_prefix), input);
2291         strcpy(path, ".");
2292     } else {
2293         input_path_len = p - input + 1;
2294         memcpy(path, input, input_path_len);
2295         if (input_path_len > sizeof(path) - 1)
2296             input_path_len = sizeof(path) - 1;
2297         path[input_path_len] = '\0';
2298         pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
2299     }
2300 #ifdef DEBUG_COMPLETION
2301     term_printf("input='%s' path='%s' prefix='%s'\n", input, path, file_prefix);
2302 #endif
2303     ffs = opendir(path);
2304     if (!ffs)
2305         return;
2306     for(;;) {
2307         struct stat sb;
2308         d = readdir(ffs);
2309         if (!d)
2310             break;
2311         if (strstart(d->d_name, file_prefix, NULL)) {
2312             memcpy(file, input, input_path_len);
2313             strcpy(file + input_path_len, d->d_name);
2314             /* stat the file to find out if it's a directory.
2315              * In that case add a slash to speed up typing long paths
2316              */
2317             stat(file, &sb);
2318             if(S_ISDIR(sb.st_mode))
2319                 strcat(file, "/");
2320             add_completion(file);
2321         }
2322     }
2323     closedir(ffs);
2324 }
2325
2326 static void block_completion_it(void *opaque, const char *name)
2327 {
2328     const char *input = opaque;
2329
2330     if (input[0] == '\0' ||
2331         !strncmp(name, (char *)input, strlen(input))) {
2332         add_completion(name);
2333     }
2334 }
2335
2336 /* NOTE: this parser is an approximate form of the real command parser */
2337 static void parse_cmdline(const char *cmdline,
2338                          int *pnb_args, char **args)
2339 {
2340     const char *p;
2341     int nb_args, ret;
2342     char buf[1024];
2343
2344     p = cmdline;
2345     nb_args = 0;
2346     for(;;) {
2347         while (isspace(*p))
2348             p++;
2349         if (*p == '\0')
2350             break;
2351         if (nb_args >= MAX_ARGS)
2352             break;
2353         ret = get_str(buf, sizeof(buf), &p);
2354         args[nb_args] = qemu_strdup(buf);
2355         nb_args++;
2356         if (ret < 0)
2357             break;
2358     }
2359     *pnb_args = nb_args;
2360 }
2361
2362 void readline_find_completion(const char *cmdline)
2363 {
2364     const char *cmdname;
2365     char *args[MAX_ARGS];
2366     int nb_args, i, len;
2367     const char *ptype, *str;
2368     term_cmd_t *cmd;
2369     const KeyDef *key;
2370
2371     parse_cmdline(cmdline, &nb_args, args);
2372 #ifdef DEBUG_COMPLETION
2373     for(i = 0; i < nb_args; i++) {
2374         term_printf("arg%d = '%s'\n", i, (char *)args[i]);
2375     }
2376 #endif
2377
2378     /* if the line ends with a space, it means we want to complete the
2379        next arg */
2380     len = strlen(cmdline);
2381     if (len > 0 && isspace(cmdline[len - 1])) {
2382         if (nb_args >= MAX_ARGS)
2383             return;
2384         args[nb_args++] = qemu_strdup("");
2385     }
2386     if (nb_args <= 1) {
2387         /* command completion */
2388         if (nb_args == 0)
2389             cmdname = "";
2390         else
2391             cmdname = args[0];
2392         completion_index = strlen(cmdname);
2393         for(cmd = term_cmds; cmd->name != NULL; cmd++) {
2394             cmd_completion(cmdname, cmd->name);
2395         }
2396     } else {
2397         /* find the command */
2398         for(cmd = term_cmds; cmd->name != NULL; cmd++) {
2399             if (compare_cmd(args[0], cmd->name))
2400                 goto found;
2401         }
2402         return;
2403     found:
2404         ptype = cmd->args_type;
2405         for(i = 0; i < nb_args - 2; i++) {
2406             if (*ptype != '\0') {
2407                 ptype++;
2408                 while (*ptype == '?')
2409                     ptype++;
2410             }
2411         }
2412         str = args[nb_args - 1];
2413         switch(*ptype) {
2414         case 'F':
2415             /* file completion */
2416             completion_index = strlen(str);
2417             file_completion(str);
2418             break;
2419         case 'B':
2420             /* block device name completion */
2421             completion_index = strlen(str);
2422             bdrv_iterate(block_completion_it, (void *)str);
2423             break;
2424         case 's':
2425             /* XXX: more generic ? */
2426             if (!strcmp(cmd->name, "info")) {
2427                 completion_index = strlen(str);
2428                 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
2429                     cmd_completion(str, cmd->name);
2430                 }
2431             } else if (!strcmp(cmd->name, "sendkey")) {
2432                 completion_index = strlen(str);
2433                 for(key = key_defs; key->name != NULL; key++) {
2434                     cmd_completion(str, key->name);
2435                 }
2436             }
2437             break;
2438         default:
2439             break;
2440         }
2441     }
2442     for(i = 0; i < nb_args; i++)
2443         qemu_free(args[i]);
2444 }
2445
2446 static int term_can_read(void *opaque)
2447 {
2448     return 128;
2449 }
2450
2451 static void term_read(void *opaque, const uint8_t *buf, int size)
2452 {
2453     int i;
2454     for(i = 0; i < size; i++)
2455         readline_handle_byte(buf[i]);
2456 }
2457
2458 static void monitor_start_input(void);
2459
2460 static void monitor_handle_command1(void *opaque, const char *cmdline)
2461 {
2462     monitor_handle_command(cmdline);
2463     monitor_start_input();
2464 }
2465
2466 static void monitor_start_input(void)
2467 {
2468     readline_start("(qemu) ", 0, monitor_handle_command1, NULL);
2469 }
2470
2471 static void term_event(void *opaque, int event)
2472 {
2473     if (event != CHR_EVENT_RESET)
2474         return;
2475
2476     if (!hide_banner)
2477             term_printf("QEMU %s monitor - type 'help' for more information\n",
2478                         QEMU_VERSION);
2479     monitor_start_input();
2480 }
2481
2482 static int is_first_init = 1;
2483
2484 void monitor_init(CharDriverState *hd, int show_banner)
2485 {
2486     int i;
2487
2488     if (is_first_init) {
2489         for (i = 0; i < MAX_MON; i++) {
2490             monitor_hd[i] = NULL;
2491         }
2492         is_first_init = 0;
2493     }
2494     for (i = 0; i < MAX_MON; i++) {
2495         if (monitor_hd[i] == NULL) {
2496             monitor_hd[i] = hd;
2497             break;
2498         }
2499     }
2500
2501     hide_banner = !show_banner;
2502
2503     qemu_chr_add_handlers(hd, term_can_read, term_read, term_event, NULL);
2504 }
2505
2506 /* XXX: use threads ? */
2507 /* modal monitor readline */
2508 static int monitor_readline_started;
2509 static char *monitor_readline_buf;
2510 static int monitor_readline_buf_size;
2511
2512 static void monitor_readline_cb(void *opaque, const char *input)
2513 {
2514     pstrcpy(monitor_readline_buf, monitor_readline_buf_size, input);
2515     monitor_readline_started = 0;
2516 }
2517
2518 void monitor_readline(const char *prompt, int is_password,
2519                       char *buf, int buf_size)
2520 {
2521     int i;
2522
2523     if (is_password) {
2524         for (i = 0; i < MAX_MON; i++)
2525             if (monitor_hd[i] && monitor_hd[i]->focus == 0)
2526                 qemu_chr_send_event(monitor_hd[i], CHR_EVENT_FOCUS);
2527     }
2528     readline_start(prompt, is_password, monitor_readline_cb, NULL);
2529     monitor_readline_buf = buf;
2530     monitor_readline_buf_size = buf_size;
2531     monitor_readline_started = 1;
2532     while (monitor_readline_started) {
2533         main_loop_wait(10);
2534     }
2535 }