monitor.c

   1 /*
   2  * QEMU monitor
   3  *
   4  * Copyright (c) 2003-2004 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include "vl.h"
  25 #include "disas.h"
  26 #include <dirent.h>
  27
  28 //#define DEBUG
  29 //#define DEBUG_COMPLETION
  30
  31 #ifndef offsetof
  32 #define offsetof(type, field) ((size_t) &((type *)0)->field)
  33 #endif
  34
  35 /*
  36  * Supported types:
  37  *
  38  * 'F'          filename
  39  * 'B'          block device name
  40  * 's'          string (accept optional quote)
  41  * 'i'          32 bit integer
  42  * 'l'          target long (32 or 64 bit)
  43  * '/'          optional gdb-like print format (like "/10x")
  44  *
  45  * '?'          optional type (for 'F', 's' and 'i')
  46  *
  47  */
  48
  49 typedef struct term_cmd_t {
  50     const char *name;
  51     const char *args_type;
  52     void (*handler)();
  53     const char *params;
  54     const char *help;
  55 } term_cmd_t;
  56
  57 static CharDriverState *monitor_hd;
  58 static int hide_banner;
  59
  60 static term_cmd_t term_cmds[];
  61 static term_cmd_t info_cmds[];
  62
  63 static char term_outbuf[1024];
  64 static int term_outbuf_index;
  65
  66 static void monitor_start_input(void);
  67
  68 CPUState *mon_cpu = NULL;
  69
  70 void term_flush(void)
  71 {
  72     if (term_outbuf_index > 0) {
  73         qemu_chr_write(monitor_hd, term_outbuf, term_outbuf_index);
  74         term_outbuf_index = 0;
  75     }
  76 }
  77
  78 /* flush at every end of line or if the buffer is full */
  79 void term_puts(const char *str)
  80 {
  81     int c;
  82     for(;;) {
  83         c = *str++;
  84         if (c == '\0')
  85             break;
  86         if (c == '\n')
  87             term_outbuf[term_outbuf_index++] = '\r';
  88         term_outbuf[term_outbuf_index++] = c;
  89         if (term_outbuf_index >= (sizeof(term_outbuf) - 1) ||
  90             c == '\n')
  91             term_flush();
  92     }
  93 }
  94
  95 void term_vprintf(const char *fmt, va_list ap)
  96 {
  97     char buf[4096];
  98     vsnprintf(buf, sizeof(buf), fmt, ap);
  99     term_puts(buf);
 100 }
 101
 102 void term_printf(const char *fmt, ...)
 103 {
 104     va_list ap;
 105     va_start(ap, fmt);
 106     term_vprintf(fmt, ap);
 107     va_end(ap);
 108 }
 109
 110 void term_print_filename(const char *filename)
 111 {
 112     int i;
 113
 114     for (i = 0; filename[i]; i++) {
 115         switch (filename[i]) {
 116         case ' ':
 117         case '"':
 118         case '\\':
 119             term_printf("\\%c", filename[i]);
 120             break;
 121         case '\t':
 122             term_printf("\\t");
 123             break;
 124         case '\r':
 125             term_printf("\\r");
 126             break;
 127         case '\n':
 128             term_printf("\\n");
 129             break;
 130         default:
 131             term_printf("%c", filename[i]);
 132             break;
 133         }
 134     }
 135 }
 136
 137 static int monitor_fprintf(FILE *stream, const char *fmt, ...)
 138 {
 139     va_list ap;
 140     va_start(ap, fmt);
 141     term_vprintf(fmt, ap);
 142     va_end(ap);
 143     return 0;
 144 }
 145
 146 static int compare_cmd(const char *name, const char *list)
 147 {
 148     const char *p, *pstart;
 149     int len;
 150     len = strlen(name);
 151     p = list;
 152     for(;;) {
 153         pstart = p;
 154         p = strchr(p, '|');
 155         if (!p)
 156             p = pstart + strlen(pstart);
 157         if ((p - pstart) == len && !memcmp(pstart, name, len))
 158             return 1;
 159         if (*p == '\0')
 160             break;
 161         p++;
 162     }
 163     return 0;
 164 }
 165
 166 static void help_cmd1(term_cmd_t *cmds, const char *prefix, const char *name)
 167 {
 168     term_cmd_t *cmd;
 169
 170     for(cmd = cmds; cmd->name != NULL; cmd++) {
 171         if (!name || !strcmp(name, cmd->name))
 172             term_printf("%s%s %s -- %s\n", prefix, cmd->name, cmd->params, cmd->help);
 173     }
 174 }
 175
 176 static void help_cmd(const char *name)
 177 {
 178     if (name && !strcmp(name, "info")) {
 179         help_cmd1(info_cmds, "info ", NULL);
 180     } else {
 181         help_cmd1(term_cmds, "", name);
 182         if (name && !strcmp(name, "log")) {
 183             CPULogItem *item;
 184             term_printf("Log items (comma separated):\n");
 185             term_printf("%-10s %s\n", "none", "remove all logs");
 186             for(item = cpu_log_items; item->mask != 0; item++) {
 187                 term_printf("%-10s %s\n", item->name, item->help);
 188             }
 189         }
 190     }
 191 }
 192
 193 static void do_help(const char *name)
 194 {
 195     help_cmd(name);
 196 }
 197
 198 static void do_commit(const char *device)
 199 {
 200     int i, all_devices;
 201
 202     all_devices = !strcmp(device, "all");
 203     for (i = 0; i < MAX_DISKS; i++) {
 204         if (bs_table[i]) {
 205             if (all_devices ||
 206                 !strcmp(bdrv_get_device_name(bs_table[i]), device))
 207                 bdrv_commit(bs_table[i]);
 208         }
 209     }
 210 }
 211
 212 static void do_info(const char *item)
 213 {
 214     term_cmd_t *cmd;
 215
 216     if (!item)
 217         goto help;
 218     for(cmd = info_cmds; cmd->name != NULL; cmd++) {
 219         if (compare_cmd(item, cmd->name))
 220             goto found;
 221     }
 222  help:
 223     help_cmd("info");
 224     return;
 225  found:
 226     cmd->handler();
 227 }
 228
 229 static void do_info_version(void)
 230 {
 231   term_printf("%s\n", QEMU_VERSION);
 232 }
 233
 234 static void do_info_block(void)
 235 {
 236     bdrv_info();
 237 }
 238
 239 /* get the current CPU defined by the user */
 240 int mon_set_cpu(int cpu_index)
 241 {
 242     CPUState *env;
 243
 244     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 245         if (env->cpu_index == cpu_index) {
 246             mon_cpu = env;
 247             return 0;
 248         }
 249     }
 250     return -1;
 251 }
 252
 253 CPUState *mon_get_cpu(void)
 254 {
 255     if (!mon_cpu) {
 256         mon_set_cpu(0);
 257     }
 258     return mon_cpu;
 259 }
 260
 261 static void do_info_registers(void)
 262 {
 263     CPUState *env;
 264     env = mon_get_cpu();
 265     if (!env)
 266         return;
 267 #ifdef TARGET_I386
 268     cpu_dump_state(env, NULL, monitor_fprintf,
 269                    X86_DUMP_FPU);
 270 #else
 271     cpu_dump_state(env, NULL, monitor_fprintf,
 272                    0);
 273 #endif
 274 }
 275
 276 static void do_info_cpus(void)
 277 {
 278     CPUState *env;
 279
 280     /* just to set the default cpu if not already done */
 281     mon_get_cpu();
 282
 283     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 284         term_printf("%c CPU #%d:",
 285                     (env == mon_cpu) ? '*' : ' ',
 286                     env->cpu_index);
 287 #if defined(TARGET_I386)
 288         term_printf(" pc=0x" TARGET_FMT_lx, env->eip + env->segs[R_CS].base);
 289         if (env->hflags & HF_HALTED_MASK)
 290             term_printf(" (halted)");
 291 #elif defined(TARGET_PPC)
 292         term_printf(" nip=0x" TARGET_FMT_lx, env->nip);
 293         if (env->halted)
 294             term_printf(" (halted)");
 295 #elif defined(TARGET_SPARC)
 296         term_printf(" pc=0x" TARGET_FMT_lx " npc=0x" TARGET_FMT_lx, env->pc, env->npc);
 297         if (env->halted)
 298             term_printf(" (halted)");
 299 #endif
 300         term_printf("\n");
 301     }
 302 }
 303
 304 static void do_cpu_set(int index)
 305 {
 306     if (mon_set_cpu(index) < 0)
 307         term_printf("Invalid CPU index\n");
 308 }
 309
 310 static void do_info_jit(void)
 311 {
 312     dump_exec_info(NULL, monitor_fprintf);
 313 }
 314
 315 static void do_info_history (void)
 316 {
 317     int i;
 318     const char *str;
 319
 320     i = 0;
 321     for(;;) {
 322         str = readline_get_history(i);
 323         if (!str)
 324             break;
 325         term_printf("%d: '%s'\n", i, str);
 326         i++;
 327     }
 328 }
 329
 330 static void do_quit(void)
 331 {
 332     exit(0);
 333 }
 334
 335 static int eject_device(BlockDriverState *bs, int force)
 336 {
 337     if (bdrv_is_inserted(bs)) {
 338         if (!force) {
 339             if (!bdrv_is_removable(bs)) {
 340                 term_printf("device is not removable\n");
 341                 return -1;
 342             }
 343             if (bdrv_is_locked(bs)) {
 344                 term_printf("device is locked\n");
 345                 return -1;
 346             }
 347         }
 348         bdrv_close(bs);
 349     }
 350     return 0;
 351 }
 352
 353 static void do_eject(int force, const char *filename)
 354 {
 355     BlockDriverState *bs;
 356
 357     bs = bdrv_find(filename);
 358     if (!bs) {
 359         term_printf("device not found\n");
 360         return;
 361     }
 362     eject_device(bs, force);
 363 }
 364
 365 static void do_change(const char *device, const char *filename)
 366 {
 367     BlockDriverState *bs;
 368     int i;
 369     char password[256];
 370
 371     bs = bdrv_find(device);
 372     if (!bs) {
 373         term_printf("device not found\n");
 374         return;
 375     }
 376     if (eject_device(bs, 0) < 0)
 377         return;
 378     bdrv_open(bs, filename, 0);
 379     if (bdrv_is_encrypted(bs)) {
 380         term_printf("%s is encrypted.\n", device);
 381         for(i = 0; i < 3; i++) {
 382             monitor_readline("Password: ", 1, password, sizeof(password));
 383             if (bdrv_set_key(bs, password) == 0)
 384                 break;
 385             term_printf("invalid password\n");
 386         }
 387     }
 388 }
 389
 390 static void do_screen_dump(const char *filename)
 391 {
 392     vga_hw_screen_dump(filename);
 393 }
 394
 395 static void do_log(const char *items)
 396 {
 397     int mask;
 398
 399     if (!strcmp(items, "none")) {
 400         mask = 0;
 401     } else {
 402         mask = cpu_str_to_log_mask(items);
 403         if (!mask) {
 404             help_cmd("log");
 405             return;
 406         }
 407     }
 408     cpu_set_log(mask);
 409 }
 410
 411 static void do_stop(void)
 412 {
 413     vm_stop(EXCP_INTERRUPT);
 414 }
 415
 416 static void do_cont(void)
 417 {
 418     vm_start();
 419 }
 420
 421 #ifdef CONFIG_GDBSTUB
 422 static void do_gdbserver(int has_port, int port)
 423 {
 424     if (!has_port)
 425         port = DEFAULT_GDBSTUB_PORT;
 426     if (gdbserver_start(port) < 0) {
 427         qemu_printf("Could not open gdbserver socket on port %d\n", port);
 428     } else {
 429         qemu_printf("Waiting gdb connection on port %d\n", port);
 430     }
 431 }
 432 #endif
 433
 434 static void term_printc(int c)
 435 {
 436     term_printf("'");
 437     switch(c) {
 438     case '\'':
 439         term_printf("\\'");
 440         break;
 441     case '\\':
 442         term_printf("\\\\");
 443         break;
 444     case '\n':
 445         term_printf("\\n");
 446         break;
 447     case '\r':
 448         term_printf("\\r");
 449         break;
 450     default:
 451         if (c >= 32 && c <= 126) {
 452             term_printf("%c", c);
 453         } else {
 454             term_printf("\\x%02x", c);
 455         }
 456         break;
 457     }
 458     term_printf("'");
 459 }
 460
 461 static void memory_dump(int count, int format, int wsize,
 462                         target_ulong addr, int is_physical)
 463 {
 464     CPUState *env;
 465     int nb_per_line, l, line_size, i, max_digits, len;
 466     uint8_t buf[16];
 467     uint64_t v;
 468
 469     if (format == 'i') {
 470         int flags;
 471         flags = 0;
 472         env = mon_get_cpu();
 473         if (!env && !is_physical)
 474             return;
 475 #ifdef TARGET_I386
 476         if (wsize == 2) {
 477             flags = 1;
 478         } else if (wsize == 4) {
 479             flags = 0;
 480         } else {
 481             /* as default we use the current CS size */
 482             flags = 0;
 483             if (env) {
 484 #ifdef TARGET_X86_64
 485                 if ((env->efer & MSR_EFER_LMA) &&
 486                     (env->segs[R_CS].flags & DESC_L_MASK))
 487                     flags = 2;
 488                 else
 489 #endif
 490                 if (!(env->segs[R_CS].flags & DESC_B_MASK))
 491                     flags = 1;
 492             }
 493         }
 494 #endif
 495         monitor_disas(env, addr, count, is_physical, flags);
 496         return;
 497     }
 498
 499     len = wsize * count;
 500     if (wsize == 1)
 501         line_size = 8;
 502     else
 503         line_size = 16;
 504     nb_per_line = line_size / wsize;
 505     max_digits = 0;
 506
 507     switch(format) {
 508     case 'o':
 509         max_digits = (wsize * 8 + 2) / 3;
 510         break;
 511     default:
 512     case 'x':
 513         max_digits = (wsize * 8) / 4;
 514         break;
 515     case 'u':
 516     case 'd':
 517         max_digits = (wsize * 8 * 10 + 32) / 33;
 518         break;
 519     case 'c':
 520         wsize = 1;
 521         break;
 522     }
 523
 524     while (len > 0) {
 525         term_printf(TARGET_FMT_lx ":", addr);
 526         l = len;
 527         if (l > line_size)
 528             l = line_size;
 529         if (is_physical) {
 530             cpu_physical_memory_rw(addr, buf, l, 0);
 531         } else {
 532             env = mon_get_cpu();
 533             if (!env)
 534                 break;
 535             cpu_memory_rw_debug(env, addr, buf, l, 0);
 536         }
 537         i = 0;
 538         while (i < l) {
 539             switch(wsize) {
 540             default:
 541             case 1:
 542                 v = ldub_raw(buf + i);
 543                 break;
 544             case 2:
 545                 v = lduw_raw(buf + i);
 546                 break;
 547             case 4:
 548                 v = (uint32_t)ldl_raw(buf + i);
 549                 break;
 550             case 8:
 551                 v = ldq_raw(buf + i);
 552                 break;
 553             }
 554             term_printf(" ");
 555             switch(format) {
 556             case 'o':
 557                 term_printf("%#*" PRIo64, max_digits, v);
 558                 break;
 559             case 'x':
 560                 term_printf("0x%0*" PRIx64, max_digits, v);
 561                 break;
 562             case 'u':
 563                 term_printf("%*" PRIu64, max_digits, v);
 564                 break;
 565             case 'd':
 566                 term_printf("%*" PRId64, max_digits, v);
 567                 break;
 568             case 'c':
 569                 term_printc(v);
 570                 break;
 571             }
 572             i += wsize;
 573         }
 574         term_printf("\n");
 575         addr += l;
 576         len -= l;
 577     }
 578 }
 579
 580 #if TARGET_LONG_BITS == 64
 581 #define GET_TLONG(h, l) (((uint64_t)(h) << 32) | (l))
 582 #else
 583 #define GET_TLONG(h, l) (l)
 584 #endif
 585
 586 static void do_memory_dump(int count, int format, int size,
 587                            uint32_t addrh, uint32_t addrl)
 588 {
 589     target_long addr = GET_TLONG(addrh, addrl);
 590     memory_dump(count, format, size, addr, 0);
 591 }
 592
 593 static void do_physical_memory_dump(int count, int format, int size,
 594                                     uint32_t addrh, uint32_t addrl)
 595
 596 {
 597     target_long addr = GET_TLONG(addrh, addrl);
 598     memory_dump(count, format, size, addr, 1);
 599 }
 600
 601 static void do_print(int count, int format, int size, unsigned int valh, unsigned int vall)
 602 {
 603     target_long val = GET_TLONG(valh, vall);
 604 #if TARGET_LONG_BITS == 32
 605     switch(format) {
 606     case 'o':
 607         term_printf("%#o", val);
 608         break;
 609     case 'x':
 610         term_printf("%#x", val);
 611         break;
 612     case 'u':
 613         term_printf("%u", val);
 614         break;
 615     default:
 616     case 'd':
 617         term_printf("%d", val);
 618         break;
 619     case 'c':
 620         term_printc(val);
 621         break;
 622     }
 623 #else
 624     switch(format) {
 625     case 'o':
 626         term_printf("%#" PRIo64, val);
 627         break;
 628     case 'x':
 629         term_printf("%#" PRIx64, val);
 630         break;
 631     case 'u':
 632         term_printf("%" PRIu64, val);
 633         break;
 634     default:
 635     case 'd':
 636         term_printf("%" PRId64, val);
 637         break;
 638     case 'c':
 639         term_printc(val);
 640         break;
 641     }
 642 #endif
 643     term_printf("\n");
 644 }
 645
 646 static void do_memory_save(unsigned int valh, unsigned int vall,
 647                            uint32_t size, const char *filename)
 648 {
 649     FILE *f;
 650     target_long addr = GET_TLONG(valh, vall);
 651     uint32_t l;
 652     CPUState *env;
 653     uint8_t buf[1024];
 654
 655     env = mon_get_cpu();
 656     if (!env)
 657         return;
 658
 659     f = fopen(filename, "wb");
 660     if (!f) {
 661         term_printf("could not open '%s'\n", filename);
 662         return;
 663     }
 664     while (size != 0) {
 665         l = sizeof(buf);
 666         if (l > size)
 667             l = size;
 668         cpu_memory_rw_debug(env, addr, buf, l, 0);
 669         fwrite(buf, 1, l, f);
 670         addr += l;
 671         size -= l;
 672     }
 673     fclose(f);
 674 }
 675
 676 static void do_sum(uint32_t start, uint32_t size)
 677 {
 678     uint32_t addr;
 679     uint8_t buf[1];
 680     uint16_t sum;
 681
 682     sum = 0;
 683     for(addr = start; addr < (start + size); addr++) {
 684         cpu_physical_memory_rw(addr, buf, 1, 0);
 685         /* BSD sum algorithm ('sum' Unix command) */
 686         sum = (sum >> 1) | (sum << 15);
 687         sum += buf[0];
 688     }
 689     term_printf("%05d\n", sum);
 690 }
 691
 692 typedef struct {
 693     int keycode;
 694     const char *name;
 695 } KeyDef;
 696
 697 static const KeyDef key_defs[] = {
 698     { 0x2a, "shift" },
 699     { 0x36, "shift_r" },
 700
 701     { 0x38, "alt" },
 702     { 0xb8, "alt_r" },
 703     { 0x1d, "ctrl" },
 704     { 0x9d, "ctrl_r" },
 705
 706     { 0xdd, "menu" },
 707
 708     { 0x01, "esc" },
 709
 710     { 0x02, "1" },
 711     { 0x03, "2" },
 712     { 0x04, "3" },
 713     { 0x05, "4" },
 714     { 0x06, "5" },
 715     { 0x07, "6" },
 716     { 0x08, "7" },
 717     { 0x09, "8" },
 718     { 0x0a, "9" },
 719     { 0x0b, "0" },
 720     { 0x0c, "minus" },
 721     { 0x0d, "equal" },
 722     { 0x0e, "backspace" },
 723
 724     { 0x0f, "tab" },
 725     { 0x10, "q" },
 726     { 0x11, "w" },
 727     { 0x12, "e" },
 728     { 0x13, "r" },
 729     { 0x14, "t" },
 730     { 0x15, "y" },
 731     { 0x16, "u" },
 732     { 0x17, "i" },
 733     { 0x18, "o" },
 734     { 0x19, "p" },
 735
 736     { 0x1c, "ret" },
 737
 738     { 0x1e, "a" },
 739     { 0x1f, "s" },
 740     { 0x20, "d" },
 741     { 0x21, "f" },
 742     { 0x22, "g" },
 743     { 0x23, "h" },
 744     { 0x24, "j" },
 745     { 0x25, "k" },
 746     { 0x26, "l" },
 747
 748     { 0x2c, "z" },
 749     { 0x2d, "x" },
 750     { 0x2e, "c" },
 751     { 0x2f, "v" },
 752     { 0x30, "b" },
 753     { 0x31, "n" },
 754     { 0x32, "m" },
 755
 756     { 0x39, "spc" },
 757     { 0x3a, "caps_lock" },
 758     { 0x3b, "f1" },
 759     { 0x3c, "f2" },
 760     { 0x3d, "f3" },
 761     { 0x3e, "f4" },
 762     { 0x3f, "f5" },
 763     { 0x40, "f6" },
 764     { 0x41, "f7" },
 765     { 0x42, "f8" },
 766     { 0x43, "f9" },
 767     { 0x44, "f10" },
 768     { 0x45, "num_lock" },
 769     { 0x46, "scroll_lock" },
 770
 771     { 0xb5, "kp_divide" },
 772     { 0x37, "kp_multiply" },
 773     { 0x4a, "kp_substract" },
 774     { 0x4e, "kp_add" },
 775     { 0x9c, "kp_enter" },
 776     { 0x53, "kp_decimal" },
 777
 778     { 0x52, "kp_0" },
 779     { 0x4f, "kp_1" },
 780     { 0x50, "kp_2" },
 781     { 0x51, "kp_3" },
 782     { 0x4b, "kp_4" },
 783     { 0x4c, "kp_5" },
 784     { 0x4d, "kp_6" },
 785     { 0x47, "kp_7" },
 786     { 0x48, "kp_8" },
 787     { 0x49, "kp_9" },
 788
 789     { 0x56, "<" },
 790
 791     { 0x57, "f11" },
 792     { 0x58, "f12" },
 793
 794     { 0xb7, "print" },
 795
 796     { 0xc7, "home" },
 797     { 0xc9, "pgup" },
 798     { 0xd1, "pgdn" },
 799     { 0xcf, "end" },
 800
 801     { 0xcb, "left" },
 802     { 0xc8, "up" },
 803     { 0xd0, "down" },
 804     { 0xcd, "right" },
 805
 806     { 0xd2, "insert" },
 807     { 0xd3, "delete" },
 808     { 0, NULL },
 809 };
 810
 811 static int get_keycode(const char *key)
 812 {
 813     const KeyDef *p;
 814     char *endp;
 815     int ret;
 816
 817     for(p = key_defs; p->name != NULL; p++) {
 818         if (!strcmp(key, p->name))
 819             return p->keycode;
 820     }
 821     if (strstart(key, "0x", NULL)) {
 822         ret = strtoul(key, &endp, 0);
 823         if (*endp == '\0' && ret >= 0x01 && ret <= 0xff)
 824             return ret;
 825     }
 826     return -1;
 827 }
 828
 829 static void do_send_key(const char *string)
 830 {
 831     char keybuf[16], *q;
 832     uint8_t keycodes[16];
 833     const char *p;
 834     int nb_keycodes, keycode, i;
 835
 836     nb_keycodes = 0;
 837     p = string;
 838     while (*p != '\0') {
 839         q = keybuf;
 840         while (*p != '\0' && *p != '-') {
 841             if ((q - keybuf) < sizeof(keybuf) - 1) {
 842                 *q++ = *p;
 843             }
 844             p++;
 845         }
 846         *q = '\0';
 847         keycode = get_keycode(keybuf);
 848         if (keycode < 0) {
 849             term_printf("unknown key: '%s'\n", keybuf);
 850             return;
 851         }
 852         keycodes[nb_keycodes++] = keycode;
 853         if (*p == '\0')
 854             break;
 855         p++;
 856     }
 857     /* key down events */
 858     for(i = 0; i < nb_keycodes; i++) {
 859         keycode = keycodes[i];
 860         if (keycode & 0x80)
 861             kbd_put_keycode(0xe0);
 862         kbd_put_keycode(keycode & 0x7f);
 863     }
 864     /* key up events */
 865     for(i = nb_keycodes - 1; i >= 0; i--) {
 866         keycode = keycodes[i];
 867         if (keycode & 0x80)
 868             kbd_put_keycode(0xe0);
 869         kbd_put_keycode(keycode | 0x80);
 870     }
 871 }
 872
 873 static int mouse_button_state;
 874
 875 static void do_mouse_move(const char *dx_str, const char *dy_str,
 876                           const char *dz_str)
 877 {
 878     int dx, dy, dz;
 879     dx = strtol(dx_str, NULL, 0);
 880     dy = strtol(dy_str, NULL, 0);
 881     dz = 0;
 882     if (dz_str)
 883         dz = strtol(dz_str, NULL, 0);
 884     kbd_mouse_event(dx, dy, dz, mouse_button_state);
 885 }
 886
 887 static void do_mouse_button(int button_state)
 888 {
 889     mouse_button_state = button_state;
 890     kbd_mouse_event(0, 0, 0, mouse_button_state);
 891 }
 892
 893 static void do_ioport_read(int count, int format, int size, int addr, int has_index, int index)
 894 {
 895     uint32_t val;
 896     int suffix;
 897
 898     if (has_index) {
 899         cpu_outb(NULL, addr & 0xffff, index & 0xff);
 900         addr++;
 901     }
 902     addr &= 0xffff;
 903
 904     switch(size) {
 905     default:
 906     case 1:
 907         val = cpu_inb(NULL, addr);
 908         suffix = 'b';
 909         break;
 910     case 2:
 911         val = cpu_inw(NULL, addr);
 912         suffix = 'w';
 913         break;
 914     case 4:
 915         val = cpu_inl(NULL, addr);
 916         suffix = 'l';
 917         break;
 918     }
 919     term_printf("port%c[0x%04x] = %#0*x\n",
 920                 suffix, addr, size * 2, val);
 921 }
 922
 923 static void do_system_reset(void)
 924 {
 925     qemu_system_reset_request();
 926 }
 927
 928 static void do_system_powerdown(void)
 929 {
 930     qemu_system_powerdown_request();
 931 }
 932
 933 #if defined(TARGET_I386)
 934 static void print_pte(uint32_t addr, uint32_t pte, uint32_t mask)
 935 {
 936     term_printf("%08x: %08x %c%c%c%c%c%c%c%c\n",
 937                 addr,
 938                 pte & mask,
 939                 pte & PG_GLOBAL_MASK ? 'G' : '-',
 940                 pte & PG_PSE_MASK ? 'P' : '-',
 941                 pte & PG_DIRTY_MASK ? 'D' : '-',
 942                 pte & PG_ACCESSED_MASK ? 'A' : '-',
 943                 pte & PG_PCD_MASK ? 'C' : '-',
 944                 pte & PG_PWT_MASK ? 'T' : '-',
 945                 pte & PG_USER_MASK ? 'U' : '-',
 946                 pte & PG_RW_MASK ? 'W' : '-');
 947 }
 948
 949 static void tlb_info(void)
 950 {
 951     CPUState *env;
 952     int l1, l2;
 953     uint32_t pgd, pde, pte;
 954
 955     env = mon_get_cpu();
 956     if (!env)
 957         return;
 958
 959     if (!(env->cr[0] & CR0_PG_MASK)) {
 960         term_printf("PG disabled\n");
 961         return;
 962     }
 963     pgd = env->cr[3] & ~0xfff;
 964     for(l1 = 0; l1 < 1024; l1++) {
 965         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
 966         pde = le32_to_cpu(pde);
 967         if (pde & PG_PRESENT_MASK) {
 968             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
 969                 print_pte((l1 << 22), pde, ~((1 << 20) - 1));
 970             } else {
 971                 for(l2 = 0; l2 < 1024; l2++) {
 972                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
 973                                              (uint8_t *)&pte, 4);
 974                     pte = le32_to_cpu(pte);
 975                     if (pte & PG_PRESENT_MASK) {
 976                         print_pte((l1 << 22) + (l2 << 12),
 977                                   pte & ~PG_PSE_MASK,
 978                                   ~0xfff);
 979                     }
 980                 }
 981             }
 982         }
 983     }
 984 }
 985
 986 static void mem_print(uint32_t *pstart, int *plast_prot,
 987                       uint32_t end, int prot)
 988 {
 989     int prot1;
 990     prot1 = *plast_prot;
 991     if (prot != prot1) {
 992         if (*pstart != -1) {
 993             term_printf("%08x-%08x %08x %c%c%c\n",
 994                         *pstart, end, end - *pstart,
 995                         prot1 & PG_USER_MASK ? 'u' : '-',
 996                         'r',
 997                         prot1 & PG_RW_MASK ? 'w' : '-');
 998         }
 999         if (prot != 0)
1000             *pstart = end;
1001         else
1002             *pstart = -1;
1003         *plast_prot = prot;
1004     }
1005 }
1006
1007 static void mem_info(void)
1008 {
1009     CPUState *env;
1010     int l1, l2, prot, last_prot;
1011     uint32_t pgd, pde, pte, start, end;
1012
1013     env = mon_get_cpu();
1014     if (!env)
1015         return;
1016
1017     if (!(env->cr[0] & CR0_PG_MASK)) {
1018         term_printf("PG disabled\n");
1019         return;
1020     }
1021     pgd = env->cr[3] & ~0xfff;
1022     last_prot = 0;
1023     start = -1;
1024     for(l1 = 0; l1 < 1024; l1++) {
1025         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1026         pde = le32_to_cpu(pde);
1027         end = l1 << 22;
1028         if (pde & PG_PRESENT_MASK) {
1029             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1030                 prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1031                 mem_print(&start, &last_prot, end, prot);
1032             } else {
1033                 for(l2 = 0; l2 < 1024; l2++) {
1034                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1035                                              (uint8_t *)&pte, 4);
1036                     pte = le32_to_cpu(pte);
1037                     end = (l1 << 22) + (l2 << 12);
1038                     if (pte & PG_PRESENT_MASK) {
1039                         prot = pte & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1040                     } else {
1041                         prot = 0;
1042                     }
1043                     mem_print(&start, &last_prot, end, prot);
1044                 }
1045             }
1046         } else {
1047             prot = 0;
1048             mem_print(&start, &last_prot, end, prot);
1049         }
1050     }
1051 }
1052 #endif
1053
1054 static void do_info_kqemu(void)
1055 {
1056 #ifdef USE_KQEMU
1057     CPUState *env;
1058     int val;
1059     val = 0;
1060     env = mon_get_cpu();
1061     if (!env) {
1062         term_printf("No cpu initialized yet");
1063         return;
1064     }
1065     val = env->kqemu_enabled;
1066     term_printf("kqemu support: ");
1067     switch(val) {
1068     default:
1069     case 0:
1070         term_printf("disabled\n");
1071         break;
1072     case 1:
1073         term_printf("enabled for user code\n");
1074         break;
1075     case 2:
1076         term_printf("enabled for user and kernel code\n");
1077         break;
1078     }
1079 #else
1080     term_printf("kqemu support: not compiled\n");
1081 #endif
1082 }
1083
1084 #ifdef CONFIG_PROFILER
1085
1086 int64_t kqemu_time;
1087 int64_t qemu_time;
1088 int64_t kqemu_exec_count;
1089 int64_t dev_time;
1090 int64_t kqemu_ret_int_count;
1091 int64_t kqemu_ret_excp_count;
1092 int64_t kqemu_ret_intr_count;
1093
1094 static void do_info_profile(void)
1095 {
1096     int64_t total;
1097     total = qemu_time;
1098     if (total == 0)
1099         total = 1;
1100     term_printf("async time  %" PRId64 " (%0.3f)\n",
1101                 dev_time, dev_time / (double)ticks_per_sec);
1102     term_printf("qemu time   %" PRId64 " (%0.3f)\n",
1103                 qemu_time, qemu_time / (double)ticks_per_sec);
1104     term_printf("kqemu time  %" PRId64 " (%0.3f %0.1f%%) count=%" PRId64 " int=%" PRId64 " excp=%" PRId64 " intr=%" PRId64 "\n",
1105                 kqemu_time, kqemu_time / (double)ticks_per_sec,
1106                 kqemu_time / (double)total * 100.0,
1107                 kqemu_exec_count,
1108                 kqemu_ret_int_count,
1109                 kqemu_ret_excp_count,
1110                 kqemu_ret_intr_count);
1111     qemu_time = 0;
1112     kqemu_time = 0;
1113     kqemu_exec_count = 0;
1114     dev_time = 0;
1115     kqemu_ret_int_count = 0;
1116     kqemu_ret_excp_count = 0;
1117     kqemu_ret_intr_count = 0;
1118 #ifdef USE_KQEMU
1119     kqemu_record_dump();
1120 #endif
1121 }
1122 #else
1123 static void do_info_profile(void)
1124 {
1125     term_printf("Internal profiler not compiled\n");
1126 }
1127 #endif
1128
1129 /* Capture support */
1130 static LIST_HEAD (capture_list_head, CaptureState) capture_head;
1131
1132 static void do_info_capture (void)
1133 {
1134     int i;
1135     CaptureState *s;
1136
1137     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1138         term_printf ("[%d]: ", i);
1139         s->ops.info (s->opaque);
1140     }
1141 }
1142
1143 static void do_stop_capture (int n)
1144 {
1145     int i;
1146     CaptureState *s;
1147
1148     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1149         if (i == n) {
1150             s->ops.destroy (s->opaque);
1151             LIST_REMOVE (s, entries);
1152             qemu_free (s);
1153             return;
1154         }
1155     }
1156 }
1157
1158 #ifdef HAS_AUDIO
1159 int wav_start_capture (CaptureState *s, const char *path, int freq,
1160                        int bits, int nchannels);
1161
1162 static void do_wav_capture (const char *path,
1163                             int has_freq, int freq,
1164                             int has_bits, int bits,
1165                             int has_channels, int nchannels)
1166 {
1167     CaptureState *s;
1168
1169     s = qemu_mallocz (sizeof (*s));
1170     if (!s) {
1171         term_printf ("Not enough memory to add wave capture\n");
1172         return;
1173     }
1174
1175     freq = has_freq ? freq : 44100;
1176     bits = has_bits ? bits : 16;
1177     nchannels = has_channels ? nchannels : 2;
1178
1179     if (wav_start_capture (s, path, freq, bits, nchannels)) {
1180         term_printf ("Faied to add wave capture\n");
1181         qemu_free (s);
1182     }
1183     LIST_INSERT_HEAD (&capture_head, s, entries);
1184 }
1185 #endif
1186
1187 static term_cmd_t term_cmds[] = {
1188     { "help|?", "s?", do_help,
1189       "[cmd]", "show the help" },
1190     { "commit", "s", do_commit,
1191       "device|all", "commit changes to the disk images (if -snapshot is used) or backing files" },
1192     { "info", "s?", do_info,
1193       "subcommand", "show various information about the system state" },
1194     { "q|quit", "", do_quit,
1195       "", "quit the emulator" },
1196     { "eject", "-fB", do_eject,
1197       "[-f] device", "eject a removable media (use -f to force it)" },
1198     { "change", "BF", do_change,
1199       "device filename", "change a removable media" },
1200     { "screendump", "F", do_screen_dump,
1201       "filename", "save screen into PPM image 'filename'" },
1202     { "log", "s", do_log,
1203       "item1[,...]", "activate logging of the specified items to '/tmp/qemu.log'" },
1204     { "savevm", "s?", do_savevm,
1205       "tag|id", "save a VM snapshot. If no tag or id are provided, a new snapshot is created" },
1206     { "loadvm", "s", do_loadvm,
1207       "tag|id", "restore a VM snapshot from its tag or id" },
1208     { "delvm", "s", do_delvm,
1209       "tag|id", "delete a VM snapshot from its tag or id" },
1210     { "stop", "", do_stop,
1211       "", "stop emulation", },
1212     { "c|cont", "", do_cont,
1213       "", "resume emulation", },
1214 #ifdef CONFIG_GDBSTUB
1215     { "gdbserver", "i?", do_gdbserver,
1216       "[port]", "start gdbserver session (default port=1234)", },
1217 #endif
1218     { "x", "/l", do_memory_dump,
1219       "/fmt addr", "virtual memory dump starting at 'addr'", },
1220     { "xp", "/l", do_physical_memory_dump,
1221       "/fmt addr", "physical memory dump starting at 'addr'", },
1222     { "p|print", "/l", do_print,
1223       "/fmt expr", "print expression value (use $reg for CPU register access)", },
1224     { "i", "/ii.", do_ioport_read,
1225       "/fmt addr", "I/O port read" },
1226
1227     { "sendkey", "s", do_send_key,
1228       "keys", "send keys to the VM (e.g. 'sendkey ctrl-alt-f1')" },
1229     { "system_reset", "", do_system_reset,
1230       "", "reset the system" },
1231     { "system_powerdown", "", do_system_powerdown,
1232       "", "send system power down event" },
1233     { "sum", "ii", do_sum,
1234       "addr size", "compute the checksum of a memory region" },
1235     { "usb_add", "s", do_usb_add,
1236       "device", "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')" },
1237     { "usb_del", "s", do_usb_del,
1238       "device", "remove USB device 'bus.addr'" },
1239     { "cpu", "i", do_cpu_set,
1240       "index", "set the default CPU" },
1241     { "mouse_move", "sss?", do_mouse_move,
1242       "dx dy [dz]", "send mouse move events" },
1243     { "mouse_button", "i", do_mouse_button,
1244       "state", "change mouse button state (1=L, 2=M, 4=R)" },
1245     { "mouse_set", "i", do_mouse_set,
1246       "index", "set which mouse device receives events" },
1247 #ifdef HAS_AUDIO
1248     { "wavcapture", "si?i?i?", do_wav_capture,
1249       "path [frequency bits channels]",
1250       "capture audio to a wave file (default frequency=44100 bits=16 channels=2)" },
1251 #endif
1252      { "stopcapture", "i", do_stop_capture,
1253        "capture index", "stop capture" },
1254     { "memsave", "lis", do_memory_save,
1255       "addr size file", "save to disk virtual memory dump starting at 'addr' of size 'size'", },
1256     { NULL, NULL, },
1257 };
1258
1259 static term_cmd_t info_cmds[] = {
1260     { "version", "", do_info_version,
1261       "", "show the version of qemu" },
1262     { "network", "", do_info_network,
1263       "", "show the network state" },
1264     { "block", "", do_info_block,
1265       "", "show the block devices" },
1266     { "registers", "", do_info_registers,
1267       "", "show the cpu registers" },
1268     { "cpus", "", do_info_cpus,
1269       "", "show infos for each CPU" },
1270     { "history", "", do_info_history,
1271       "", "show the command line history", },
1272     { "irq", "", irq_info,
1273       "", "show the interrupts statistics (if available)", },
1274     { "pic", "", pic_info,
1275       "", "show i8259 (PIC) state", },
1276     { "pci", "", pci_info,
1277       "", "show PCI info", },
1278 #if defined(TARGET_I386)
1279     { "tlb", "", tlb_info,
1280       "", "show virtual to physical memory mappings", },
1281     { "mem", "", mem_info,
1282       "", "show the active virtual memory mappings", },
1283 #endif
1284     { "jit", "", do_info_jit,
1285       "", "show dynamic compiler info", },
1286     { "kqemu", "", do_info_kqemu,
1287       "", "show kqemu information", },
1288     { "usb", "", usb_info,
1289       "", "show guest USB devices", },
1290     { "usbhost", "", usb_host_info,
1291       "", "show host USB devices", },
1292     { "profile", "", do_info_profile,
1293       "", "show profiling information", },
1294     { "capture", "", do_info_capture,
1295       "", "show capture information" },
1296     { "snapshots", "", do_info_snapshots,
1297       "", "show the currently saved VM snapshots" },
1298     { "mice", "", do_info_mice,
1299       "", "show which guest mouse is receiving events" },
1300     { NULL, NULL, },
1301 };
1302
1303 /*******************************************************************/
1304
1305 static const char *pch;
1306 static jmp_buf expr_env;
1307
1308 #define MD_TLONG 0
1309 #define MD_I32   1
1310
1311 typedef struct MonitorDef {
1312     const char *name;
1313     int offset;
1314     target_long (*get_value)(struct MonitorDef *md, int val);
1315     int type;
1316 } MonitorDef;
1317
1318 #if defined(TARGET_I386)
1319 static target_long monitor_get_pc (struct MonitorDef *md, int val)
1320 {
1321     CPUState *env = mon_get_cpu();
1322     if (!env)
1323         return 0;
1324     return env->eip + env->segs[R_CS].base;
1325 }
1326 #endif
1327
1328 #if defined(TARGET_PPC)
1329 static target_long monitor_get_ccr (struct MonitorDef *md, int val)
1330 {
1331     CPUState *env = mon_get_cpu();
1332     unsigned int u;
1333     int i;
1334
1335     if (!env)
1336         return 0;
1337
1338     u = 0;
1339     for (i = 0; i < 8; i++)
1340         u |= env->crf[i] << (32 - (4 * i));
1341
1342     return u;
1343 }
1344
1345 static target_long monitor_get_msr (struct MonitorDef *md, int val)
1346 {
1347     CPUState *env = mon_get_cpu();
1348     if (!env)
1349         return 0;
1350     return (env->msr[MSR_POW] << MSR_POW) |
1351         (env->msr[MSR_ILE] << MSR_ILE) |
1352         (env->msr[MSR_EE] << MSR_EE) |
1353         (env->msr[MSR_PR] << MSR_PR) |
1354         (env->msr[MSR_FP] << MSR_FP) |
1355         (env->msr[MSR_ME] << MSR_ME) |
1356         (env->msr[MSR_FE0] << MSR_FE0) |
1357         (env->msr[MSR_SE] << MSR_SE) |
1358         (env->msr[MSR_BE] << MSR_BE) |
1359         (env->msr[MSR_FE1] << MSR_FE1) |
1360         (env->msr[MSR_IP] << MSR_IP) |
1361         (env->msr[MSR_IR] << MSR_IR) |
1362         (env->msr[MSR_DR] << MSR_DR) |
1363         (env->msr[MSR_RI] << MSR_RI) |
1364         (env->msr[MSR_LE] << MSR_LE);
1365 }
1366
1367 static target_long monitor_get_xer (struct MonitorDef *md, int val)
1368 {
1369     CPUState *env = mon_get_cpu();
1370     if (!env)
1371         return 0;
1372     return (env->xer[XER_SO] << XER_SO) |
1373         (env->xer[XER_OV] << XER_OV) |
1374         (env->xer[XER_CA] << XER_CA) |
1375         (env->xer[XER_BC] << XER_BC);
1376 }
1377
1378 static target_long monitor_get_decr (struct MonitorDef *md, int val)
1379 {
1380     CPUState *env = mon_get_cpu();
1381     if (!env)
1382         return 0;
1383     return cpu_ppc_load_decr(env);
1384 }
1385
1386 static target_long monitor_get_tbu (struct MonitorDef *md, int val)
1387 {
1388     CPUState *env = mon_get_cpu();
1389     if (!env)
1390         return 0;
1391     return cpu_ppc_load_tbu(env);
1392 }
1393
1394 static target_long monitor_get_tbl (struct MonitorDef *md, int val)
1395 {
1396     CPUState *env = mon_get_cpu();
1397     if (!env)
1398         return 0;
1399     return cpu_ppc_load_tbl(env);
1400 }
1401 #endif
1402
1403 #if defined(TARGET_SPARC)
1404 #ifndef TARGET_SPARC64
1405 static target_long monitor_get_psr (struct MonitorDef *md, int val)
1406 {
1407     CPUState *env = mon_get_cpu();
1408     if (!env)
1409         return 0;
1410     return GET_PSR(env);
1411 }
1412 #endif
1413
1414 static target_long monitor_get_reg(struct MonitorDef *md, int val)
1415 {
1416     CPUState *env = mon_get_cpu();
1417     if (!env)
1418         return 0;
1419     return env->regwptr[val];
1420 }
1421 #endif
1422
1423 static MonitorDef monitor_defs[] = {
1424 #ifdef TARGET_I386
1425
1426 #define SEG(name, seg) \
1427     { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
1428     { name ".base", offsetof(CPUState, segs[seg].base) },\
1429     { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },
1430
1431     { "eax", offsetof(CPUState, regs[0]) },
1432     { "ecx", offsetof(CPUState, regs[1]) },
1433     { "edx", offsetof(CPUState, regs[2]) },
1434     { "ebx", offsetof(CPUState, regs[3]) },
1435     { "esp|sp", offsetof(CPUState, regs[4]) },
1436     { "ebp|fp", offsetof(CPUState, regs[5]) },
1437     { "esi", offsetof(CPUState, regs[6]) },
1438     { "edi", offsetof(CPUState, regs[7]) },
1439 #ifdef TARGET_X86_64
1440     { "r8", offsetof(CPUState, regs[8]) },
1441     { "r9", offsetof(CPUState, regs[9]) },
1442     { "r10", offsetof(CPUState, regs[10]) },
1443     { "r11", offsetof(CPUState, regs[11]) },
1444     { "r12", offsetof(CPUState, regs[12]) },
1445     { "r13", offsetof(CPUState, regs[13]) },
1446     { "r14", offsetof(CPUState, regs[14]) },
1447     { "r15", offsetof(CPUState, regs[15]) },
1448 #endif
1449     { "eflags", offsetof(CPUState, eflags) },
1450     { "eip", offsetof(CPUState, eip) },
1451     SEG("cs", R_CS)
1452     SEG("ds", R_DS)
1453     SEG("es", R_ES)
1454     SEG("ss", R_SS)
1455     SEG("fs", R_FS)
1456     SEG("gs", R_GS)
1457     { "pc", 0, monitor_get_pc, },
1458 #elif defined(TARGET_PPC)
1459     { "r0", offsetof(CPUState, gpr[0]) },
1460     { "r1", offsetof(CPUState, gpr[1]) },
1461     { "r2", offsetof(CPUState, gpr[2]) },
1462     { "r3", offsetof(CPUState, gpr[3]) },
1463     { "r4", offsetof(CPUState, gpr[4]) },
1464     { "r5", offsetof(CPUState, gpr[5]) },
1465     { "r6", offsetof(CPUState, gpr[6]) },
1466     { "r7", offsetof(CPUState, gpr[7]) },
1467     { "r8", offsetof(CPUState, gpr[8]) },
1468     { "r9", offsetof(CPUState, gpr[9]) },
1469     { "r10", offsetof(CPUState, gpr[10]) },
1470     { "r11", offsetof(CPUState, gpr[11]) },
1471     { "r12", offsetof(CPUState, gpr[12]) },
1472     { "r13", offsetof(CPUState, gpr[13]) },
1473     { "r14", offsetof(CPUState, gpr[14]) },
1474     { "r15", offsetof(CPUState, gpr[15]) },
1475     { "r16", offsetof(CPUState, gpr[16]) },
1476     { "r17", offsetof(CPUState, gpr[17]) },
1477     { "r18", offsetof(CPUState, gpr[18]) },
1478     { "r19", offsetof(CPUState, gpr[19]) },
1479     { "r20", offsetof(CPUState, gpr[20]) },
1480     { "r21", offsetof(CPUState, gpr[21]) },
1481     { "r22", offsetof(CPUState, gpr[22]) },
1482     { "r23", offsetof(CPUState, gpr[23]) },
1483     { "r24", offsetof(CPUState, gpr[24]) },
1484     { "r25", offsetof(CPUState, gpr[25]) },
1485     { "r26", offsetof(CPUState, gpr[26]) },
1486     { "r27", offsetof(CPUState, gpr[27]) },
1487     { "r28", offsetof(CPUState, gpr[28]) },
1488     { "r29", offsetof(CPUState, gpr[29]) },
1489     { "r30", offsetof(CPUState, gpr[30]) },
1490     { "r31", offsetof(CPUState, gpr[31]) },
1491     { "nip|pc", offsetof(CPUState, nip) },
1492     { "lr", offsetof(CPUState, lr) },
1493     { "ctr", offsetof(CPUState, ctr) },
1494     { "decr", 0, &monitor_get_decr, },
1495     { "ccr", 0, &monitor_get_ccr, },
1496     { "msr", 0, &monitor_get_msr, },
1497     { "xer", 0, &monitor_get_xer, },
1498     { "tbu", 0, &monitor_get_tbu, },
1499     { "tbl", 0, &monitor_get_tbl, },
1500     { "sdr1", offsetof(CPUState, sdr1) },
1501     { "sr0", offsetof(CPUState, sr[0]) },
1502     { "sr1", offsetof(CPUState, sr[1]) },
1503     { "sr2", offsetof(CPUState, sr[2]) },
1504     { "sr3", offsetof(CPUState, sr[3]) },
1505     { "sr4", offsetof(CPUState, sr[4]) },
1506     { "sr5", offsetof(CPUState, sr[5]) },
1507     { "sr6", offsetof(CPUState, sr[6]) },
1508     { "sr7", offsetof(CPUState, sr[7]) },
1509     { "sr8", offsetof(CPUState, sr[8]) },
1510     { "sr9", offsetof(CPUState, sr[9]) },
1511     { "sr10", offsetof(CPUState, sr[10]) },
1512     { "sr11", offsetof(CPUState, sr[11]) },
1513     { "sr12", offsetof(CPUState, sr[12]) },
1514     { "sr13", offsetof(CPUState, sr[13]) },
1515     { "sr14", offsetof(CPUState, sr[14]) },
1516     { "sr15", offsetof(CPUState, sr[15]) },
1517     /* Too lazy to put BATs and SPRs ... */
1518 #elif defined(TARGET_SPARC)
1519     { "g0", offsetof(CPUState, gregs[0]) },
1520     { "g1", offsetof(CPUState, gregs[1]) },
1521     { "g2", offsetof(CPUState, gregs[2]) },
1522     { "g3", offsetof(CPUState, gregs[3]) },
1523     { "g4", offsetof(CPUState, gregs[4]) },
1524     { "g5", offsetof(CPUState, gregs[5]) },
1525     { "g6", offsetof(CPUState, gregs[6]) },
1526     { "g7", offsetof(CPUState, gregs[7]) },
1527     { "o0", 0, monitor_get_reg },
1528     { "o1", 1, monitor_get_reg },
1529     { "o2", 2, monitor_get_reg },
1530     { "o3", 3, monitor_get_reg },
1531     { "o4", 4, monitor_get_reg },
1532     { "o5", 5, monitor_get_reg },
1533     { "o6", 6, monitor_get_reg },
1534     { "o7", 7, monitor_get_reg },
1535     { "l0", 8, monitor_get_reg },
1536     { "l1", 9, monitor_get_reg },
1537     { "l2", 10, monitor_get_reg },
1538     { "l3", 11, monitor_get_reg },
1539     { "l4", 12, monitor_get_reg },
1540     { "l5", 13, monitor_get_reg },
1541     { "l6", 14, monitor_get_reg },
1542     { "l7", 15, monitor_get_reg },
1543     { "i0", 16, monitor_get_reg },
1544     { "i1", 17, monitor_get_reg },
1545     { "i2", 18, monitor_get_reg },
1546     { "i3", 19, monitor_get_reg },
1547     { "i4", 20, monitor_get_reg },
1548     { "i5", 21, monitor_get_reg },
1549     { "i6", 22, monitor_get_reg },
1550     { "i7", 23, monitor_get_reg },
1551     { "pc", offsetof(CPUState, pc) },
1552     { "npc", offsetof(CPUState, npc) },
1553     { "y", offsetof(CPUState, y) },
1554 #ifndef TARGET_SPARC64
1555     { "psr", 0, &monitor_get_psr, },
1556     { "wim", offsetof(CPUState, wim) },
1557 #endif
1558     { "tbr", offsetof(CPUState, tbr) },
1559     { "fsr", offsetof(CPUState, fsr) },
1560     { "f0", offsetof(CPUState, fpr[0]) },
1561     { "f1", offsetof(CPUState, fpr[1]) },
1562     { "f2", offsetof(CPUState, fpr[2]) },
1563     { "f3", offsetof(CPUState, fpr[3]) },
1564     { "f4", offsetof(CPUState, fpr[4]) },
1565     { "f5", offsetof(CPUState, fpr[5]) },
1566     { "f6", offsetof(CPUState, fpr[6]) },
1567     { "f7", offsetof(CPUState, fpr[7]) },
1568     { "f8", offsetof(CPUState, fpr[8]) },
1569     { "f9", offsetof(CPUState, fpr[9]) },
1570     { "f10", offsetof(CPUState, fpr[10]) },
1571     { "f11", offsetof(CPUState, fpr[11]) },
1572     { "f12", offsetof(CPUState, fpr[12]) },
1573     { "f13", offsetof(CPUState, fpr[13]) },
1574     { "f14", offsetof(CPUState, fpr[14]) },
1575     { "f15", offsetof(CPUState, fpr[15]) },
1576     { "f16", offsetof(CPUState, fpr[16]) },
1577     { "f17", offsetof(CPUState, fpr[17]) },
1578     { "f18", offsetof(CPUState, fpr[18]) },
1579     { "f19", offsetof(CPUState, fpr[19]) },
1580     { "f20", offsetof(CPUState, fpr[20]) },
1581     { "f21", offsetof(CPUState, fpr[21]) },
1582     { "f22", offsetof(CPUState, fpr[22]) },
1583     { "f23", offsetof(CPUState, fpr[23]) },
1584     { "f24", offsetof(CPUState, fpr[24]) },
1585     { "f25", offsetof(CPUState, fpr[25]) },
1586     { "f26", offsetof(CPUState, fpr[26]) },
1587     { "f27", offsetof(CPUState, fpr[27]) },
1588     { "f28", offsetof(CPUState, fpr[28]) },
1589     { "f29", offsetof(CPUState, fpr[29]) },
1590     { "f30", offsetof(CPUState, fpr[30]) },
1591     { "f31", offsetof(CPUState, fpr[31]) },
1592 #ifdef TARGET_SPARC64
1593     { "f32", offsetof(CPUState, fpr[32]) },
1594     { "f34", offsetof(CPUState, fpr[34]) },
1595     { "f36", offsetof(CPUState, fpr[36]) },
1596     { "f38", offsetof(CPUState, fpr[38]) },
1597     { "f40", offsetof(CPUState, fpr[40]) },
1598     { "f42", offsetof(CPUState, fpr[42]) },
1599     { "f44", offsetof(CPUState, fpr[44]) },
1600     { "f46", offsetof(CPUState, fpr[46]) },
1601     { "f48", offsetof(CPUState, fpr[48]) },
1602     { "f50", offsetof(CPUState, fpr[50]) },
1603     { "f52", offsetof(CPUState, fpr[52]) },
1604     { "f54", offsetof(CPUState, fpr[54]) },
1605     { "f56", offsetof(CPUState, fpr[56]) },
1606     { "f58", offsetof(CPUState, fpr[58]) },
1607     { "f60", offsetof(CPUState, fpr[60]) },
1608     { "f62", offsetof(CPUState, fpr[62]) },
1609     { "asi", offsetof(CPUState, asi) },
1610     { "pstate", offsetof(CPUState, pstate) },
1611     { "cansave", offsetof(CPUState, cansave) },
1612     { "canrestore", offsetof(CPUState, canrestore) },
1613     { "otherwin", offsetof(CPUState, otherwin) },
1614     { "wstate", offsetof(CPUState, wstate) },
1615     { "cleanwin", offsetof(CPUState, cleanwin) },
1616     { "fprs", offsetof(CPUState, fprs) },
1617 #endif
1618 #endif
1619     { NULL },
1620 };
1621
1622 static void expr_error(const char *fmt)
1623 {
1624     term_printf(fmt);
1625     term_printf("\n");
1626     longjmp(expr_env, 1);
1627 }
1628
1629 /* return 0 if OK, -1 if not found, -2 if no CPU defined */
1630 static int get_monitor_def(target_long *pval, const char *name)
1631 {
1632     MonitorDef *md;
1633     void *ptr;
1634
1635     for(md = monitor_defs; md->name != NULL; md++) {
1636         if (compare_cmd(name, md->name)) {
1637             if (md->get_value) {
1638                 *pval = md->get_value(md, md->offset);
1639             } else {
1640                 CPUState *env = mon_get_cpu();
1641                 if (!env)
1642                     return -2;
1643                 ptr = (uint8_t *)env + md->offset;
1644                 switch(md->type) {
1645                 case MD_I32:
1646                     *pval = *(int32_t *)ptr;
1647                     break;
1648                 case MD_TLONG:
1649                     *pval = *(target_long *)ptr;
1650                     break;
1651                 default:
1652                     *pval = 0;
1653                     break;
1654                 }
1655             }
1656             return 0;
1657         }
1658     }
1659     return -1;
1660 }
1661
1662 static void next(void)
1663 {
1664     if (pch != '\0') {
1665         pch++;
1666         while (isspace(*pch))
1667             pch++;
1668     }
1669 }
1670
1671 static target_long expr_sum(void);
1672
1673 static target_long expr_unary(void)
1674 {
1675     target_long n;
1676     char *p;
1677     int ret;
1678
1679     switch(*pch) {
1680     case '+':
1681         next();
1682         n = expr_unary();
1683         break;
1684     case '-':
1685         next();
1686         n = -expr_unary();
1687         break;
1688     case '~':
1689         next();
1690         n = ~expr_unary();
1691         break;
1692     case '(':
1693         next();
1694         n = expr_sum();
1695         if (*pch != ')') {
1696             expr_error("')' expected");
1697         }
1698         next();
1699         break;
1700     case '\'':
1701         pch++;
1702         if (*pch == '\0')
1703             expr_error("character constant expected");
1704         n = *pch;
1705         pch++;
1706         if (*pch != '\'')
1707             expr_error("missing terminating \' character");
1708         next();
1709         break;
1710     case '$':
1711         {
1712             char buf[128], *q;
1713
1714             pch++;
1715             q = buf;
1716             while ((*pch >= 'a' && *pch <= 'z') ||
1717                    (*pch >= 'A' && *pch <= 'Z') ||
1718                    (*pch >= '0' && *pch <= '9') ||
1719                    *pch == '_' || *pch == '.') {
1720                 if ((q - buf) < sizeof(buf) - 1)
1721                     *q++ = *pch;
1722                 pch++;
1723             }
1724             while (isspace(*pch))
1725                 pch++;
1726             *q = 0;
1727             ret = get_monitor_def(&n, buf);
1728             if (ret == -1)
1729                 expr_error("unknown register");
1730             else if (ret == -2)
1731                 expr_error("no cpu defined");
1732         }
1733         break;
1734     case '\0':
1735         expr_error("unexpected end of expression");
1736         n = 0;
1737         break;
1738     default:
1739 #if TARGET_LONG_BITS == 64
1740         n = strtoull(pch, &p, 0);
1741 #else
1742         n = strtoul(pch, &p, 0);
1743 #endif
1744         if (pch == p) {
1745             expr_error("invalid char in expression");
1746         }
1747         pch = p;
1748         while (isspace(*pch))
1749             pch++;
1750         break;
1751     }
1752     return n;
1753 }
1754
1755
1756 static target_long expr_prod(void)
1757 {
1758     target_long val, val2;
1759     int op;
1760
1761     val = expr_unary();
1762     for(;;) {
1763         op = *pch;
1764         if (op != '*' && op != '/' && op != '%')
1765             break;
1766         next();
1767         val2 = expr_unary();
1768         switch(op) {
1769         default:
1770         case '*':
1771             val *= val2;
1772             break;
1773         case '/':
1774         case '%':
1775             if (val2 == 0)
1776                 expr_error("division by zero");
1777             if (op == '/')
1778                 val /= val2;
1779             else
1780                 val %= val2;
1781             break;
1782         }
1783     }
1784     return val;
1785 }
1786
1787 static target_long expr_logic(void)
1788 {
1789     target_long val, val2;
1790     int op;
1791
1792     val = expr_prod();
1793     for(;;) {
1794         op = *pch;
1795         if (op != '&' && op != '|' && op != '^')
1796             break;
1797         next();
1798         val2 = expr_prod();
1799         switch(op) {
1800         default:
1801         case '&':
1802             val &= val2;
1803             break;
1804         case '|':
1805             val |= val2;
1806             break;
1807         case '^':
1808             val ^= val2;
1809             break;
1810         }
1811     }
1812     return val;
1813 }
1814
1815 static target_long expr_sum(void)
1816 {
1817     target_long val, val2;
1818     int op;
1819
1820     val = expr_logic();
1821     for(;;) {
1822         op = *pch;
1823         if (op != '+' && op != '-')
1824             break;
1825         next();
1826         val2 = expr_logic();
1827         if (op == '+')
1828             val += val2;
1829         else
1830             val -= val2;
1831     }
1832     return val;
1833 }
1834
1835 static int get_expr(target_long *pval, const char **pp)
1836 {
1837     pch = *pp;
1838     if (setjmp(expr_env)) {
1839         *pp = pch;
1840         return -1;
1841     }
1842     while (isspace(*pch))
1843         pch++;
1844     *pval = expr_sum();
1845     *pp = pch;
1846     return 0;
1847 }
1848
1849 static int get_str(char *buf, int buf_size, const char **pp)
1850 {
1851     const char *p;
1852     char *q;
1853     int c;
1854
1855     q = buf;
1856     p = *pp;
1857     while (isspace(*p))
1858         p++;
1859     if (*p == '\0') {
1860     fail:
1861         *q = '\0';
1862         *pp = p;
1863         return -1;
1864     }
1865     if (*p == '\"') {
1866         p++;
1867         while (*p != '\0' && *p != '\"') {
1868             if (*p == '\\') {
1869                 p++;
1870                 c = *p++;
1871                 switch(c) {
1872                 case 'n':
1873                     c = '\n';
1874                     break;
1875                 case 'r':
1876                     c = '\r';
1877                     break;
1878                 case '\\':
1879                 case '\'':
1880                 case '\"':
1881                     break;
1882                 default:
1883                     qemu_printf("unsupported escape code: '\\%c'\n", c);
1884                     goto fail;
1885                 }
1886                 if ((q - buf) < buf_size - 1) {
1887                     *q++ = c;
1888                 }
1889             } else {
1890                 if ((q - buf) < buf_size - 1) {
1891                     *q++ = *p;
1892                 }
1893                 p++;
1894             }
1895         }
1896         if (*p != '\"') {
1897             qemu_printf("unterminated string\n");
1898             goto fail;
1899         }
1900         p++;
1901     } else {
1902         while (*p != '\0' && !isspace(*p)) {
1903             if ((q - buf) < buf_size - 1) {
1904                 *q++ = *p;
1905             }
1906             p++;
1907         }
1908     }
1909     *q = '\0';
1910     *pp = p;
1911     return 0;
1912 }
1913
1914 static int default_fmt_format = 'x';
1915 static int default_fmt_size = 4;
1916
1917 #define MAX_ARGS 16
1918
1919 static void monitor_handle_command(const char *cmdline)
1920 {
1921     const char *p, *pstart, *typestr;
1922     char *q;
1923     int c, nb_args, len, i, has_arg;
1924     term_cmd_t *cmd;
1925     char cmdname[256];
1926     char buf[1024];
1927     void *str_allocated[MAX_ARGS];
1928     void *args[MAX_ARGS];
1929
1930 #ifdef DEBUG
1931     term_printf("command='%s'\n", cmdline);
1932 #endif
1933
1934     /* extract the command name */
1935     p = cmdline;
1936     q = cmdname;
1937     while (isspace(*p))
1938         p++;
1939     if (*p == '\0')
1940         return;
1941     pstart = p;
1942     while (*p != '\0' && *p != '/' && !isspace(*p))
1943         p++;
1944     len = p - pstart;
1945     if (len > sizeof(cmdname) - 1)
1946         len = sizeof(cmdname) - 1;
1947     memcpy(cmdname, pstart, len);
1948     cmdname[len] = '\0';
1949
1950     /* find the command */
1951     for(cmd = term_cmds; cmd->name != NULL; cmd++) {
1952         if (compare_cmd(cmdname, cmd->name))
1953             goto found;
1954     }
1955     term_printf("unknown command: '%s'\n", cmdname);
1956     return;
1957  found:
1958
1959     for(i = 0; i < MAX_ARGS; i++)
1960         str_allocated[i] = NULL;
1961
1962     /* parse the parameters */
1963     typestr = cmd->args_type;
1964     nb_args = 0;
1965     for(;;) {
1966         c = *typestr;
1967         if (c == '\0')
1968             break;
1969         typestr++;
1970         switch(c) {
1971         case 'F':
1972         case 'B':
1973         case 's':
1974             {
1975                 int ret;
1976                 char *str;
1977
1978                 while (isspace(*p))
1979                     p++;
1980                 if (*typestr == '?') {
1981                     typestr++;
1982                     if (*p == '\0') {
1983                         /* no optional string: NULL argument */
1984                         str = NULL;
1985                         goto add_str;
1986                     }
1987                 }
1988                 ret = get_str(buf, sizeof(buf), &p);
1989                 if (ret < 0) {
1990                     switch(c) {
1991                     case 'F':
1992                         term_printf("%s: filename expected\n", cmdname);
1993                         break;
1994                     case 'B':
1995                         term_printf("%s: block device name expected\n", cmdname);
1996                         break;
1997                     default:
1998                         term_printf("%s: string expected\n", cmdname);
1999                         break;
2000                     }
2001                     goto fail;
2002                 }
2003                 str = qemu_malloc(strlen(buf) + 1);
2004                 strcpy(str, buf);
2005                 str_allocated[nb_args] = str;
2006             add_str:
2007                 if (nb_args >= MAX_ARGS) {
2008                 error_args:
2009                     term_printf("%s: too many arguments\n", cmdname);
2010                     goto fail;
2011                 }
2012                 args[nb_args++] = str;
2013             }
2014             break;
2015         case '/':
2016             {
2017                 int count, format, size;
2018
2019                 while (isspace(*p))
2020                     p++;
2021                 if (*p == '/') {
2022                     /* format found */
2023                     p++;
2024                     count = 1;
2025                     if (isdigit(*p)) {
2026                         count = 0;
2027                         while (isdigit(*p)) {
2028                             count = count * 10 + (*p - '0');
2029                             p++;
2030                         }
2031                     }
2032                     size = -1;
2033                     format = -1;
2034                     for(;;) {
2035                         switch(*p) {
2036                         case 'o':
2037                         case 'd':
2038                         case 'u':
2039                         case 'x':
2040                         case 'i':
2041                         case 'c':
2042                             format = *p++;
2043                             break;
2044                         case 'b':
2045                             size = 1;
2046                             p++;
2047                             break;
2048                         case 'h':
2049                             size = 2;
2050                             p++;
2051                             break;
2052                         case 'w':
2053                             size = 4;
2054                             p++;
2055                             break;
2056                         case 'g':
2057                         case 'L':
2058                             size = 8;
2059                             p++;
2060                             break;
2061                         default:
2062                             goto next;
2063                         }
2064                     }
2065                 next:
2066                     if (*p != '\0' && !isspace(*p)) {
2067                         term_printf("invalid char in format: '%c'\n", *p);
2068                         goto fail;
2069                     }
2070                     if (format < 0)
2071                         format = default_fmt_format;
2072                     if (format != 'i') {
2073                         /* for 'i', not specifying a size gives -1 as size */
2074                         if (size < 0)
2075                             size = default_fmt_size;
2076                     }
2077                     default_fmt_size = size;
2078                     default_fmt_format = format;
2079                 } else {
2080                     count = 1;
2081                     format = default_fmt_format;
2082                     if (format != 'i') {
2083                         size = default_fmt_size;
2084                     } else {
2085                         size = -1;
2086                     }
2087                 }
2088                 if (nb_args + 3 > MAX_ARGS)
2089                     goto error_args;
2090                 args[nb_args++] = (void*)count;
2091                 args[nb_args++] = (void*)format;
2092                 args[nb_args++] = (void*)size;
2093             }
2094             break;
2095         case 'i':
2096         case 'l':
2097             {
2098                 target_long val;
2099                 while (isspace(*p))
2100                     p++;
2101                 if (*typestr == '?' || *typestr == '.') {
2102                     if (*typestr == '?') {
2103                         if (*p == '\0')
2104                             has_arg = 0;
2105                         else
2106                             has_arg = 1;
2107                     } else {
2108                         if (*p == '.') {
2109                             p++;
2110                             while (isspace(*p))
2111                                 p++;
2112                             has_arg = 1;
2113                         } else {
2114                             has_arg = 0;
2115                         }
2116                     }
2117                     typestr++;
2118                     if (nb_args >= MAX_ARGS)
2119                         goto error_args;
2120                     args[nb_args++] = (void *)has_arg;
2121                     if (!has_arg) {
2122                         if (nb_args >= MAX_ARGS)
2123                             goto error_args;
2124                         val = -1;
2125                         goto add_num;
2126                     }
2127                 }
2128                 if (get_expr(&val, &p))
2129                     goto fail;
2130             add_num:
2131                 if (c == 'i') {
2132                     if (nb_args >= MAX_ARGS)
2133                         goto error_args;
2134                     args[nb_args++] = (void *)(int)val;
2135                 } else {
2136                     if ((nb_args + 1) >= MAX_ARGS)
2137                         goto error_args;
2138 #if TARGET_LONG_BITS == 64
2139                     args[nb_args++] = (void *)(int)((val >> 32) & 0xffffffff);
2140 #else
2141                     args[nb_args++] = (void *)0;
2142 #endif
2143                     args[nb_args++] = (void *)(int)(val & 0xffffffff);
2144                 }
2145             }
2146             break;
2147         case '-':
2148             {
2149                 int has_option;
2150                 /* option */
2151
2152                 c = *typestr++;
2153                 if (c == '\0')
2154                     goto bad_type;
2155                 while (isspace(*p))
2156                     p++;
2157                 has_option = 0;
2158                 if (*p == '-') {
2159                     p++;
2160                     if (*p != c) {
2161                         term_printf("%s: unsupported option -%c\n",
2162                                     cmdname, *p);
2163                         goto fail;
2164                     }
2165                     p++;
2166                     has_option = 1;
2167                 }
2168                 if (nb_args >= MAX_ARGS)
2169                     goto error_args;
2170                 args[nb_args++] = (void *)has_option;
2171             }
2172             break;
2173         default:
2174         bad_type:
2175             term_printf("%s: unknown type '%c'\n", cmdname, c);
2176             goto fail;
2177         }
2178     }
2179     /* check that all arguments were parsed */
2180     while (isspace(*p))
2181         p++;
2182     if (*p != '\0') {
2183         term_printf("%s: extraneous characters at the end of line\n",
2184                     cmdname);
2185         goto fail;
2186     }
2187
2188     switch(nb_args) {
2189     case 0:
2190         cmd->handler();
2191         break;
2192     case 1:
2193         cmd->handler(args[0]);
2194         break;
2195     case 2:
2196         cmd->handler(args[0], args[1]);
2197         break;
2198     case 3:
2199         cmd->handler(args[0], args[1], args[2]);
2200         break;
2201     case 4:
2202         cmd->handler(args[0], args[1], args[2], args[3]);
2203         break;
2204     case 5:
2205         cmd->handler(args[0], args[1], args[2], args[3], args[4]);
2206         break;
2207     case 6:
2208         cmd->handler(args[0], args[1], args[2], args[3], args[4], args[5]);
2209         break;
2210     case 7:
2211         cmd->handler(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
2212         break;
2213     default:
2214         term_printf("unsupported number of arguments: %d\n", nb_args);
2215         goto fail;
2216     }
2217  fail:
2218     for(i = 0; i < MAX_ARGS; i++)
2219         qemu_free(str_allocated[i]);
2220     return;
2221 }
2222
2223 static void cmd_completion(const char *name, const char *list)
2224 {
2225     const char *p, *pstart;
2226     char cmd[128];
2227     int len;
2228
2229     p = list;
2230     for(;;) {
2231         pstart = p;
2232         p = strchr(p, '|');
2233         if (!p)
2234             p = pstart + strlen(pstart);
2235         len = p - pstart;
2236         if (len > sizeof(cmd) - 2)
2237             len = sizeof(cmd) - 2;
2238         memcpy(cmd, pstart, len);
2239         cmd[len] = '\0';
2240         if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
2241             add_completion(cmd);
2242         }
2243         if (*p == '\0')
2244             break;
2245         p++;
2246     }
2247 }
2248
2249 static void file_completion(const char *input)
2250 {
2251     DIR *ffs;
2252     struct dirent *d;
2253     char path[1024];
2254     char file[1024], file_prefix[1024];
2255     int input_path_len;
2256     const char *p;
2257
2258     p = strrchr(input, '/');
2259     if (!p) {
2260         input_path_len = 0;
2261         pstrcpy(file_prefix, sizeof(file_prefix), input);
2262         strcpy(path, ".");
2263     } else {
2264         input_path_len = p - input + 1;
2265         memcpy(path, input, input_path_len);
2266         if (input_path_len > sizeof(path) - 1)
2267             input_path_len = sizeof(path) - 1;
2268         path[input_path_len] = '\0';
2269         pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
2270     }
2271 #ifdef DEBUG_COMPLETION
2272     term_printf("input='%s' path='%s' prefix='%s'\n", input, path, file_prefix);
2273 #endif
2274     ffs = opendir(path);
2275     if (!ffs)
2276         return;
2277     for(;;) {
2278         struct stat sb;
2279         d = readdir(ffs);
2280         if (!d)
2281             break;
2282         if (strstart(d->d_name, file_prefix, NULL)) {
2283             memcpy(file, input, input_path_len);
2284             strcpy(file + input_path_len, d->d_name);
2285             /* stat the file to find out if it's a directory.
2286              * In that case add a slash to speed up typing long paths
2287              */
2288             stat(file, &sb);
2289             if(S_ISDIR(sb.st_mode))
2290                 strcat(file, "/");
2291             add_completion(file);
2292         }
2293     }
2294     closedir(ffs);
2295 }
2296
2297 static void block_completion_it(void *opaque, const char *name)
2298 {
2299     const char *input = opaque;
2300
2301     if (input[0] == '\0' ||
2302         !strncmp(name, (char *)input, strlen(input))) {
2303         add_completion(name);
2304     }
2305 }
2306
2307 /* NOTE: this parser is an approximate form of the real command parser */
2308 static void parse_cmdline(const char *cmdline,
2309                          int *pnb_args, char **args)
2310 {
2311     const char *p;
2312     int nb_args, ret;
2313     char buf[1024];
2314
2315     p = cmdline;
2316     nb_args = 0;
2317     for(;;) {
2318         while (isspace(*p))
2319             p++;
2320         if (*p == '\0')
2321             break;
2322         if (nb_args >= MAX_ARGS)
2323             break;
2324         ret = get_str(buf, sizeof(buf), &p);
2325         args[nb_args] = qemu_strdup(buf);
2326         nb_args++;
2327         if (ret < 0)
2328             break;
2329     }
2330     *pnb_args = nb_args;
2331 }
2332
2333 void readline_find_completion(const char *cmdline)
2334 {
2335     const char *cmdname;
2336     char *args[MAX_ARGS];
2337     int nb_args, i, len;
2338     const char *ptype, *str;
2339     term_cmd_t *cmd;
2340     const KeyDef *key;
2341
2342     parse_cmdline(cmdline, &nb_args, args);
2343 #ifdef DEBUG_COMPLETION
2344     for(i = 0; i < nb_args; i++) {
2345         term_printf("arg%d = '%s'\n", i, (char *)args[i]);
2346     }
2347 #endif
2348
2349     /* if the line ends with a space, it means we want to complete the
2350        next arg */
2351     len = strlen(cmdline);
2352     if (len > 0 && isspace(cmdline[len - 1])) {
2353         if (nb_args >= MAX_ARGS)
2354             return;
2355         args[nb_args++] = qemu_strdup("");
2356     }
2357     if (nb_args <= 1) {
2358         /* command completion */
2359         if (nb_args == 0)
2360             cmdname = "";
2361         else
2362             cmdname = args[0];
2363         completion_index = strlen(cmdname);
2364         for(cmd = term_cmds; cmd->name != NULL; cmd++) {
2365             cmd_completion(cmdname, cmd->name);
2366         }
2367     } else {
2368         /* find the command */
2369         for(cmd = term_cmds; cmd->name != NULL; cmd++) {
2370             if (compare_cmd(args[0], cmd->name))
2371                 goto found;
2372         }
2373         return;
2374     found:
2375         ptype = cmd->args_type;
2376         for(i = 0; i < nb_args - 2; i++) {
2377             if (*ptype != '\0') {
2378                 ptype++;
2379                 while (*ptype == '?')
2380                     ptype++;
2381             }
2382         }
2383         str = args[nb_args - 1];
2384         switch(*ptype) {
2385         case 'F':
2386             /* file completion */
2387             completion_index = strlen(str);
2388             file_completion(str);
2389             break;
2390         case 'B':
2391             /* block device name completion */
2392             completion_index = strlen(str);
2393             bdrv_iterate(block_completion_it, (void *)str);
2394             break;
2395         case 's':
2396             /* XXX: more generic ? */
2397             if (!strcmp(cmd->name, "info")) {
2398                 completion_index = strlen(str);
2399                 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
2400                     cmd_completion(str, cmd->name);
2401                 }
2402             } else if (!strcmp(cmd->name, "sendkey")) {
2403                 completion_index = strlen(str);
2404                 for(key = key_defs; key->name != NULL; key++) {
2405                     cmd_completion(str, key->name);
2406                 }
2407             }
2408             break;
2409         default:
2410             break;
2411         }
2412     }
2413     for(i = 0; i < nb_args; i++)
2414         qemu_free(args[i]);
2415 }
2416
2417 static int term_can_read(void *opaque)
2418 {
2419     return 128;
2420 }
2421
2422 static void term_read(void *opaque, const uint8_t *buf, int size)
2423 {
2424     int i;
2425     for(i = 0; i < size; i++)
2426         readline_handle_byte(buf[i]);
2427 }
2428
2429 static void monitor_start_input(void);
2430
2431 static void monitor_handle_command1(void *opaque, const char *cmdline)
2432 {
2433     monitor_handle_command(cmdline);
2434     monitor_start_input();
2435 }
2436
2437 static void monitor_start_input(void)
2438 {
2439     readline_start("(qemu) ", 0, monitor_handle_command1, NULL);
2440 }
2441
2442 static void term_event(void *opaque, int event)
2443 {
2444     if (event != CHR_EVENT_RESET)
2445         return;
2446
2447     if (!hide_banner)
2448             term_printf("QEMU %s monitor - type 'help' for more information\n",
2449                         QEMU_VERSION);
2450     monitor_start_input();
2451 }
2452
2453 void monitor_init(CharDriverState *hd, int show_banner)
2454 {
2455     monitor_hd = hd;
2456     hide_banner = !show_banner;
2457
2458     qemu_chr_add_handlers(hd, term_can_read, term_read, term_event, NULL);
2459 }
2460
2461 /* XXX: use threads ? */
2462 /* modal monitor readline */
2463 static int monitor_readline_started;
2464 static char *monitor_readline_buf;
2465 static int monitor_readline_buf_size;
2466
2467 static void monitor_readline_cb(void *opaque, const char *input)
2468 {
2469     pstrcpy(monitor_readline_buf, monitor_readline_buf_size, input);
2470     monitor_readline_started = 0;
2471 }
2472
2473 void monitor_readline(const char *prompt, int is_password,
2474                       char *buf, int buf_size)
2475 {
2476     if (is_password) {
2477         qemu_chr_send_event(monitor_hd, CHR_EVENT_FOCUS);
2478     }
2479     readline_start(prompt, is_password, monitor_readline_cb, NULL);
2480     monitor_readline_buf = buf;
2481     monitor_readline_buf_size = buf_size;
2482     monitor_readline_started = 1;
2483     while (monitor_readline_started) {
2484         main_loop_wait(10);
2485     }
2486 }