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sysinfo syscall (Francois Guimond)
[qemu.git] / monitor.c
CommitLineData
9dc39cba
FB		 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 */
9dc39cba 24#include "vl.h"
9307c4c1 25#include "disas.h"
9dc39cba
FB		 26
27//#define DEBUG
28
9307c4c1
FB		 29#ifndef offsetof
30#define offsetof(type, field) ((size_t) &((type *)0)->field)
31#endif
32
9dc39cba 33#define TERM_CMD_BUF_SIZE 4095
aa455485 34#define TERM_MAX_CMDS 64
9dc39cba
FB		 35
36#define IS_NORM 0
37#define IS_ESC 1
38#define IS_CSI 2
39
40#define printf do_not_use_printf
41
42static char term_cmd_buf[TERM_CMD_BUF_SIZE + 1];
43static int term_cmd_buf_index;
44static int term_cmd_buf_size;
45static int term_esc_state;
46static int term_esc_param;
47
aa455485
FB		 48static char *term_history[TERM_MAX_CMDS];
49static int term_hist_entry;
50
9307c4c1
FB		 51/*
52 * Supported types:
53 *
54 * 'F' filename
55 * 's' string (accept optional quote)
56 * 'i' integer
57 * '/' optional gdb-like print format (like "/10x")
58 *
59 * '?' optional type (for 'F', 's' and 'i')
60 *
61 */
62
9dc39cba
FB		 63typedef struct term_cmd_t {
64 const char *name;
9307c4c1
FB		 65 const char *args_type;
66 void (*handler)();
9dc39cba
FB		 67 const char *params;
68 const char *help;
69} term_cmd_t;
70
71static term_cmd_t term_cmds[];
72static term_cmd_t info_cmds[];
73
74void term_printf(const char *fmt, ...)
75{
76 va_list ap;
77 va_start(ap, fmt);
78 vprintf(fmt, ap);
79 va_end(ap);
80}
81
82void term_flush(void)
83{
84 fflush(stdout);
85}
86
87static int compare_cmd(const char *name, const char *list)
88{
89 const char *p, *pstart;
90 int len;
91 len = strlen(name);
92 p = list;
93 for(;;) {
94 pstart = p;
95 p = strchr(p, '|');
96 if (!p)
97 p = pstart + strlen(pstart);
98 if ((p - pstart) == len && !memcmp(pstart, name, len))
99 return 1;
100 if (*p == '\0')
101 break;
102 p++;
103 }
104 return 0;
105}
106
107static void help_cmd1(term_cmd_t *cmds, const char *prefix, const char *name)
108{
109 term_cmd_t *cmd;
110
111 for(cmd = cmds; cmd->name != NULL; cmd++) {
112 if (!name || !strcmp(name, cmd->name))
113 term_printf("%s%s %s -- %s\n", prefix, cmd->name, cmd->params, cmd->help);
114 }
115}
116
117static void help_cmd(const char *name)
118{
119 if (name && !strcmp(name, "info")) {
120 help_cmd1(info_cmds, "info ", NULL);
121 } else {
122 help_cmd1(term_cmds, "", name);
f193c797
FB		 123 if (name && !strcmp(name, "log")) {
124 CPULogItem *item;
125 term_printf("Log items (comma separated):\n");
126 term_printf("%-10s %s\n", "none", "remove all logs");
127 for(item = cpu_log_items; item->mask != 0; item++) {
128 term_printf("%-10s %s\n", item->name, item->help);
129 }
130 }
9dc39cba
FB		 131 }
132}
133
9307c4c1 134static void do_help(const char *name)
9dc39cba 135{
9307c4c1 136 help_cmd(name);
9dc39cba
FB		 137}
138
9307c4c1 139static void do_commit(void)
9dc39cba
FB		 140{
141 int i;
142
143 for (i = 0; i < MAX_DISKS; i++) {
144 if (bs_table[i])
145 bdrv_commit(bs_table[i]);
146 }
147}
148
9307c4c1 149static void do_info(const char *item)
9dc39cba
FB		 150{
151 term_cmd_t *cmd;
9dc39cba 152
9307c4c1 153 if (!item)
9dc39cba 154 goto help;
9dc39cba 155 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
9307c4c1 156 if (compare_cmd(item, cmd->name))
9dc39cba
FB		 157 goto found;
158 }
159 help:
9307c4c1 160 help_cmd("info");
9dc39cba
FB		 161 return;
162 found:
9307c4c1 163 cmd->handler();
9dc39cba
FB		 164}
165
9307c4c1 166static void do_info_network(void)
9dc39cba
FB		 167{
168 int i, j;
169 NetDriverState *nd;
170
171 for(i = 0; i < nb_nics; i++) {
172 nd = &nd_table[i];
173 term_printf("%d: ifname=%s macaddr=", i, nd->ifname);
174 for(j = 0; j < 6; j++) {
175 if (j > 0)
176 term_printf(":");
177 term_printf("%02x", nd->macaddr[j]);
178 }
179 term_printf("\n");
180 }
181}
182
9307c4c1 183static void do_info_block(void)
9dc39cba
FB		 184{
185 bdrv_info();
186}
187
9307c4c1
FB		 188static void do_info_registers(void)
189{
190#ifdef TARGET_I386
191 cpu_dump_state(cpu_single_env, stdout, X86_DUMP_FPU | X86_DUMP_CCOP);
192#else
193 cpu_dump_state(cpu_single_env, stdout, 0);
194#endif
195}
196
aa455485
FB		 197static void do_info_history (void)
198{
199 int i;
200
201 for (i = 0; i < TERM_MAX_CMDS; i++) {
202 if (term_history[i] == NULL)
203 break;
204 term_printf("%d: '%s'\n", i, term_history[i]);
205 }
206}
207
9307c4c1 208static void do_quit(void)
9dc39cba
FB		 209{
210 exit(0);
211}
212
213static int eject_device(BlockDriverState *bs, int force)
214{
215 if (bdrv_is_inserted(bs)) {
216 if (!force) {
217 if (!bdrv_is_removable(bs)) {
218 term_printf("device is not removable\n");
219 return -1;
220 }
221 if (bdrv_is_locked(bs)) {
222 term_printf("device is locked\n");
223 return -1;
224 }
225 }
226 bdrv_close(bs);
227 }
228 return 0;
229}
230
9307c4c1 231static void do_eject(int force, const char *filename)
9dc39cba
FB		 232{
233 BlockDriverState *bs;
9dc39cba 234
9307c4c1
FB		 235 term_printf("%d %s\n", force, filename);
236
237 bs = bdrv_find(filename);
9dc39cba
FB		 238 if (!bs) {
239 term_printf("device not found\n");
240 return;
241 }
242 eject_device(bs, force);
243}
244
9307c4c1 245static void do_change(const char *device, const char *filename)
9dc39cba
FB		 246{
247 BlockDriverState *bs;
248
9307c4c1 249 bs = bdrv_find(device);
9dc39cba
FB		 250 if (!bs) {
251 term_printf("device not found\n");
252 return;
253 }
254 if (eject_device(bs, 0) < 0)
255 return;
9307c4c1 256 bdrv_open(bs, filename, 0);
9dc39cba
FB		 257}
258
9307c4c1 259static void do_screen_dump(const char *filename)
59a983b9 260{
9307c4c1 261 vga_screen_dump(filename);
59a983b9
FB		 262}
263
9307c4c1 264static void do_log(const char *items)
f193c797
FB		 265{
266 int mask;
267
9307c4c1 268 if (!strcmp(items, "none")) {
f193c797
FB		 269 mask = 0;
270 } else {
9307c4c1 271 mask = cpu_str_to_log_mask(items);
f193c797 272 if (!mask) {
9307c4c1 273 help_cmd("log");
f193c797
FB		 274 return;
275 }
276 }
277 cpu_set_log(mask);
278}
279
9307c4c1 280static void do_savevm(const char *filename)
8a7ddc38 281{
9307c4c1
FB		 282 if (qemu_savevm(filename) < 0)
283 term_printf("I/O error when saving VM to '%s'\n", filename);
8a7ddc38
FB		 284}
285
9307c4c1 286static void do_loadvm(const char *filename)
8a7ddc38 287{
9307c4c1
FB		 288 if (qemu_loadvm(filename) < 0)
289 term_printf("I/O error when loading VM from '%s'\n", filename);
8a7ddc38
FB		 290}
291
9307c4c1 292static void do_stop(void)
8a7ddc38
FB		 293{
294 vm_stop(EXCP_INTERRUPT);
295}
296
9307c4c1 297static void do_cont(void)
8a7ddc38
FB		 298{
299 vm_start();
300}
301
67b915a5 302#ifdef CONFIG_GDBSTUB
9307c4c1 303static void do_gdbserver(int has_port, int port)
8a7ddc38 304{
9307c4c1
FB		 305 if (!has_port)
306 port = DEFAULT_GDBSTUB_PORT;
8a7ddc38
FB		 307 if (gdbserver_start(port) < 0) {
308 qemu_printf("Could not open gdbserver socket on port %d\n", port);
309 } else {
310 qemu_printf("Waiting gdb connection on port %d\n", port);
311 }
312}
67b915a5 313#endif
8a7ddc38 314
9307c4c1
FB		 315static void term_printc(int c)
316{
317 term_printf("'");
318 switch(c) {
319 case '\'':
320 term_printf("\\'");
321 break;
322 case '\\':
323 term_printf("\\\\");
324 break;
325 case '\n':
326 term_printf("\\n");
327 break;
328 case '\r':
329 term_printf("\\r");
330 break;
331 default:
332 if (c >= 32 && c <= 126) {
333 term_printf("%c", c);
334 } else {
335 term_printf("\\x%02x", c);
336 }
337 break;
338 }
339 term_printf("'");
340}
341
342static void memory_dump(int count, int format, int wsize,
343 target_ulong addr, int is_physical)
344{
345 int nb_per_line, l, line_size, i, max_digits, len;
346 uint8_t buf[16];
347 uint64_t v;
348
349 if (format == 'i') {
350 int flags;
351 flags = 0;
352#ifdef TARGET_I386
4c27ba27 353 if (wsize == 2) {
9307c4c1 354 flags = 1;
4c27ba27
FB		 355 } else if (wsize == 4) {
356 flags = 0;
357 } else {
358 /* as default we use the current CS size */
359 flags = 0;
360 if (!(cpu_single_env->segs[R_CS].flags & DESC_B_MASK))
361 flags = 1;
362 }
363#endif
9307c4c1
FB		 364 monitor_disas(addr, count, is_physical, flags);
365 return;
366 }
367
368 len = wsize * count;
369 if (wsize == 1)
370 line_size = 8;
371 else
372 line_size = 16;
373 nb_per_line = line_size / wsize;
374 max_digits = 0;
375
376 switch(format) {
377 case 'o':
378 max_digits = (wsize * 8 + 2) / 3;
379 break;
380 default:
381 case 'x':
382 max_digits = (wsize * 8) / 4;
383 break;
384 case 'u':
385 case 'd':
386 max_digits = (wsize * 8 * 10 + 32) / 33;
387 break;
388 case 'c':
389 wsize = 1;
390 break;
391 }
392
393 while (len > 0) {
394 term_printf("0x%08x:", addr);
395 l = len;
396 if (l > line_size)
397 l = line_size;
398 if (is_physical) {
399 cpu_physical_memory_rw(addr, buf, l, 0);
400 } else {
401 cpu_memory_rw_debug(cpu_single_env, addr, buf, l, 0);
402 }
403 i = 0;
404 while (i < l) {
405 switch(wsize) {
406 default:
407 case 1:
408 v = ldub_raw(buf + i);
409 break;
410 case 2:
411 v = lduw_raw(buf + i);
412 break;
413 case 4:
414 v = ldl_raw(buf + i);
415 break;
416 case 8:
417 v = ldq_raw(buf + i);
418 break;
419 }
420 term_printf(" ");
421 switch(format) {
422 case 'o':
423 term_printf("%#*llo", max_digits, v);
424 break;
425 case 'x':
426 term_printf("0x%0*llx", max_digits, v);
427 break;
428 case 'u':
429 term_printf("%*llu", max_digits, v);
430 break;
431 case 'd':
432 term_printf("%*lld", max_digits, v);
433 break;
434 case 'c':
435 term_printc(v);
436 break;
437 }
438 i += wsize;
439 }
440 term_printf("\n");
441 addr += l;
442 len -= l;
443 }
444}
445
446static void do_memory_dump(int count, int format, int size, int addr)
447{
448 memory_dump(count, format, size, addr, 0);
449}
450
451static void do_physical_memory_dump(int count, int format, int size, int addr)
452{
453 memory_dump(count, format, size, addr, 1);
454}
455
456static void do_print(int count, int format, int size, int val)
457{
458 switch(format) {
459 case 'o':
460 term_printf("%#o", val);
461 break;
462 case 'x':
463 term_printf("%#x", val);
464 break;
465 case 'u':
466 term_printf("%u", val);
467 break;
468 default:
469 case 'd':
470 term_printf("%d", val);
471 break;
472 case 'c':
473 term_printc(val);
474 break;
475 }
476 term_printf("\n");
477}
478
a3a91a35
FB		 479typedef struct {
480 int keycode;
481 const char *name;
482} KeyDef;
483
484static const KeyDef key_defs[] = {
485 { 0x2a, "shift" },
486 { 0x36, "shift_r" },
487
488 { 0x38, "alt" },
489 { 0xb8, "alt_r" },
490 { 0x1d, "ctrl" },
491 { 0x9d, "ctrl_r" },
492
493 { 0xdd, "menu" },
494
495 { 0x01, "esc" },
496
497 { 0x02, "1" },
498 { 0x03, "2" },
499 { 0x04, "3" },
500 { 0x05, "4" },
501 { 0x06, "5" },
502 { 0x07, "6" },
503 { 0x08, "7" },
504 { 0x09, "8" },
505 { 0x0a, "9" },
506 { 0x0b, "0" },
507 { 0x0e, "backspace" },
508
509 { 0x0f, "tab" },
510 { 0x10, "q" },
511 { 0x11, "w" },
512 { 0x12, "e" },
513 { 0x13, "r" },
514 { 0x14, "t" },
515 { 0x15, "y" },
516 { 0x16, "u" },
517 { 0x17, "i" },
518 { 0x18, "o" },
519 { 0x19, "p" },
520
521 { 0x1c, "ret" },
522
523 { 0x1e, "a" },
524 { 0x1f, "s" },
525 { 0x20, "d" },
526 { 0x21, "f" },
527 { 0x22, "g" },
528 { 0x23, "h" },
529 { 0x24, "j" },
530 { 0x25, "k" },
531 { 0x26, "l" },
532
533 { 0x2c, "z" },
534 { 0x2d, "x" },
535 { 0x2e, "c" },
536 { 0x2f, "v" },
537 { 0x30, "b" },
538 { 0x31, "n" },
539 { 0x32, "m" },
540
541 { 0x39, "spc" },
00ffa62a 542 { 0x3a, "caps_lock" },
a3a91a35
FB		 543 { 0x3b, "f1" },
544 { 0x3c, "f2" },
545 { 0x3d, "f3" },
546 { 0x3e, "f4" },
547 { 0x3f, "f5" },
548 { 0x40, "f6" },
549 { 0x41, "f7" },
550 { 0x42, "f8" },
551 { 0x43, "f9" },
552 { 0x44, "f10" },
00ffa62a 553 { 0x45, "num_lock" },
a3a91a35
FB		 554 { 0x46, "scroll_lock" },
555
556 { 0x56, "<" },
557
558 { 0x57, "f11" },
559 { 0x58, "f12" },
560
561 { 0xb7, "print" },
562
563 { 0xc7, "home" },
564 { 0xc9, "pgup" },
565 { 0xd1, "pgdn" },
566 { 0xcf, "end" },
567
568 { 0xcb, "left" },
569 { 0xc8, "up" },
570 { 0xd0, "down" },
571 { 0xcd, "right" },
572
573 { 0xd2, "insert" },
574 { 0xd3, "delete" },
575 { 0, NULL },
576};
577
578static int get_keycode(const char *key)
579{
580 const KeyDef *p;
581
582 for(p = key_defs; p->name != NULL; p++) {
583 if (!strcmp(key, p->name))
584 return p->keycode;
585 }
586 return -1;
587}
588
589static void do_send_key(const char *string)
590{
591 char keybuf[16], *q;
592 uint8_t keycodes[16];
593 const char *p;
594 int nb_keycodes, keycode, i;
595
596 nb_keycodes = 0;
597 p = string;
598 while (*p != '\0') {
599 q = keybuf;
600 while (*p != '\0' && *p != '-') {
601 if ((q - keybuf) < sizeof(keybuf) - 1) {
602 *q++ = *p;
603 }
604 p++;
605 }
606 *q = '\0';
607 keycode = get_keycode(keybuf);
608 if (keycode < 0) {
609 term_printf("unknown key: '%s'\n", keybuf);
610 return;
611 }
612 keycodes[nb_keycodes++] = keycode;
613 if (*p == '\0')
614 break;
615 p++;
616 }
617 /* key down events */
618 for(i = 0; i < nb_keycodes; i++) {
619 keycode = keycodes[i];
620 if (keycode & 0x80)
621 kbd_put_keycode(0xe0);
622 kbd_put_keycode(keycode & 0x7f);
623 }
624 /* key up events */
625 for(i = nb_keycodes - 1; i >= 0; i--) {
626 keycode = keycodes[i];
627 if (keycode & 0x80)
628 kbd_put_keycode(0xe0);
629 kbd_put_keycode(keycode | 0x80);
630 }
631}
632
3440557b
FB		 633static void do_ioport_read(int count, int format, int size, int addr, int has_index, int index)
634{
635 uint32_t val;
636 int suffix;
637
638 if (has_index) {
639 cpu_outb(NULL, addr & 0xffff, index & 0xff);
640 addr++;
641 }
642 addr &= 0xffff;
643
644 switch(size) {
645 default:
646 case 1:
647 val = cpu_inb(NULL, addr);
648 suffix = 'b';
649 break;
650 case 2:
651 val = cpu_inw(NULL, addr);
652 suffix = 'w';
653 break;
654 case 4:
655 val = cpu_inl(NULL, addr);
656 suffix = 'l';
657 break;
658 }
659 term_printf("port%c[0x%04x] = %#0*x\n",
660 suffix, addr, size * 2, val);
661}
a3a91a35 662
9dc39cba 663static term_cmd_t term_cmds[] = {
9307c4c1 664 { "help|?", "s?", do_help,
9dc39cba 665 "[cmd]", "show the help" },
9307c4c1 666 { "commit", "", do_commit,
9dc39cba 667 "", "commit changes to the disk images (if -snapshot is used)" },
9307c4c1 668 { "info", "s?", do_info,
9dc39cba 669 "subcommand", "show various information about the system state" },
9307c4c1 670 { "q|quit", "", do_quit,
9dc39cba 671 "", "quit the emulator" },
9307c4c1 672 { "eject", "-fs", do_eject,
9dc39cba 673 "[-f] device", "eject a removable media (use -f to force it)" },
9307c4c1 674 { "change", "sF", do_change,
9dc39cba 675 "device filename", "change a removable media" },
9307c4c1 676 { "screendump", "F", do_screen_dump,
59a983b9 677 "filename", "save screen into PPM image 'filename'" },
9307c4c1 678 { "log", "s", do_log,
f193c797 679 "item1[,...]", "activate logging of the specified items to '/tmp/qemu.log'" },
9307c4c1 680 { "savevm", "F", do_savevm,
8a7ddc38 681 "filename", "save the whole virtual machine state to 'filename'" },
9307c4c1 682 { "loadvm", "F", do_loadvm,
8a7ddc38 683 "filename", "restore the whole virtual machine state from 'filename'" },
9307c4c1
FB		 684 { "stop", "", do_stop,
685 "", "stop emulation", },
686 { "c|cont", "", do_cont,
687 "", "resume emulation", },
67b915a5 688#ifdef CONFIG_GDBSTUB
9307c4c1
FB		 689 { "gdbserver", "i?", do_gdbserver,
690 "[port]", "start gdbserver session (default port=1234)", },
67b915a5 691#endif
9307c4c1
FB		 692 { "x", "/i", do_memory_dump,
693 "/fmt addr", "virtual memory dump starting at 'addr'", },
694 { "xp", "/i", do_physical_memory_dump,
695 "/fmt addr", "physical memory dump starting at 'addr'", },
696 { "p|print", "/i", do_print,
697 "/fmt expr", "print expression value (use $reg for CPU register access)", },
3440557b
FB		 698 { "i", "/ii.", do_ioport_read,
699 "/fmt addr", "I/O port read" },
700
a3a91a35
FB		 701 { "sendkey", "s", do_send_key,
702 "keys", "send keys to the VM (e.g. 'sendkey ctrl-alt-f1')" },
f193c797 703 { NULL, NULL, },
9dc39cba
FB		 704};
705
706static term_cmd_t info_cmds[] = {
9307c4c1 707 { "network", "", do_info_network,
9dc39cba 708 "", "show the network state" },
9307c4c1 709 { "block", "", do_info_block,
9dc39cba 710 "", "show the block devices" },
9307c4c1
FB		 711 { "registers", "", do_info_registers,
712 "", "show the cpu registers" },
aa455485
FB		 713 { "history", "", do_info_history,
714 "", "show the command line history", },
4a0fb71e
FB		 715 { "irq", "", irq_info,
716 "", "show the interrupts statistics (if available)", },
4c27ba27
FB		 717 { "pic", "", pic_info,
718 "", "show i8259 (PIC) state", },
86e0c048
FB		 719 { "pci", "", pci_info,
720 "", "show PCI info", },
9dc39cba
FB		 721 { NULL, NULL, },
722};
723
9307c4c1
FB		 724/*******************************************************************/
725
726static const char *pch;
727static jmp_buf expr_env;
728
729typedef struct MonitorDef {
730 const char *name;
731 int offset;
732 int (*get_value)(struct MonitorDef *md);
733} MonitorDef;
734
57206fd4
FB		 735#if defined(TARGET_I386)
736static int monitor_get_pc (struct MonitorDef *md)
737{
738 return cpu_single_env->eip + (long)cpu_single_env->segs[R_CS].base;
739}
740#endif
741
a541f297
FB		 742#if defined(TARGET_PPC)
743static int monitor_get_ccr (struct MonitorDef *md)
744{
745 unsigned int u;
746 int i;
747
748 u = 0;
749 for (i = 0; i < 8; i++)
750 u |= cpu_single_env->crf[i] << (32 - (4 * i));
751
752 return u;
753}
754
755static int monitor_get_msr (struct MonitorDef *md)
756{
757 return (cpu_single_env->msr[MSR_POW] << MSR_POW) |
758 (cpu_single_env->msr[MSR_ILE] << MSR_ILE) |
759 (cpu_single_env->msr[MSR_EE] << MSR_EE) |
760 (cpu_single_env->msr[MSR_PR] << MSR_PR) |
761 (cpu_single_env->msr[MSR_FP] << MSR_FP) |
762 (cpu_single_env->msr[MSR_ME] << MSR_ME) |
763 (cpu_single_env->msr[MSR_FE0] << MSR_FE0) |
764 (cpu_single_env->msr[MSR_SE] << MSR_SE) |
765 (cpu_single_env->msr[MSR_BE] << MSR_BE) |
766 (cpu_single_env->msr[MSR_FE1] << MSR_FE1) |
767 (cpu_single_env->msr[MSR_IP] << MSR_IP) |
768 (cpu_single_env->msr[MSR_IR] << MSR_IR) |
769 (cpu_single_env->msr[MSR_DR] << MSR_DR) |
770 (cpu_single_env->msr[MSR_RI] << MSR_RI) |
771 (cpu_single_env->msr[MSR_LE] << MSR_LE);
772}
773
774static int monitor_get_xer (struct MonitorDef *md)
775{
776 return (cpu_single_env->xer[XER_SO] << XER_SO) |
777 (cpu_single_env->xer[XER_OV] << XER_OV) |
778 (cpu_single_env->xer[XER_CA] << XER_CA) |
779 (cpu_single_env->xer[XER_BC] << XER_BC);
780}
9fddaa0c
FB		 781
782uint32_t cpu_ppc_load_decr (CPUState *env);
783static int monitor_get_decr (struct MonitorDef *md)
784{
785 return cpu_ppc_load_decr(cpu_single_env);
786}
787
788uint32_t cpu_ppc_load_tbu (CPUState *env);
789static int monitor_get_tbu (struct MonitorDef *md)
790{
791 return cpu_ppc_load_tbu(cpu_single_env);
792}
793
794uint32_t cpu_ppc_load_tbl (CPUState *env);
795static int monitor_get_tbl (struct MonitorDef *md)
796{
797 return cpu_ppc_load_tbl(cpu_single_env);
798}
a541f297
FB		 799#endif
800
9307c4c1
FB		 801static MonitorDef monitor_defs[] = {
802#ifdef TARGET_I386
57206fd4
FB		 803
804#define SEG(name, seg) \
805 { name, offsetof(CPUState, segs[seg].selector) },\
806 { name ".base", offsetof(CPUState, segs[seg].base) },\
807 { name ".limit", offsetof(CPUState, segs[seg].limit) },
808
9307c4c1
FB		 809 { "eax", offsetof(CPUState, regs[0]) },
810 { "ecx", offsetof(CPUState, regs[1]) },
811 { "edx", offsetof(CPUState, regs[2]) },
812 { "ebx", offsetof(CPUState, regs[3]) },
813 { "esp|sp", offsetof(CPUState, regs[4]) },
814 { "ebp|fp", offsetof(CPUState, regs[5]) },
815 { "esi", offsetof(CPUState, regs[6]) },
816 { "esi", offsetof(CPUState, regs[7]) },
817 { "eflags", offsetof(CPUState, eflags) },
57206fd4
FB		 818 { "eip", offsetof(CPUState, eip) },
819 SEG("cs", R_CS)
820 SEG("ds", R_DS)
821 SEG("es", R_ES)
822 SEG("fs", R_FS)
823 SEG("gs", R_GS)
824 { "pc", 0, monitor_get_pc, },
a541f297
FB		 825#elif defined(TARGET_PPC)
826 { "r0", offsetof(CPUState, gpr[0]) },
827 { "r1", offsetof(CPUState, gpr[1]) },
828 { "r2", offsetof(CPUState, gpr[2]) },
829 { "r3", offsetof(CPUState, gpr[3]) },
830 { "r4", offsetof(CPUState, gpr[4]) },
831 { "r5", offsetof(CPUState, gpr[5]) },
832 { "r6", offsetof(CPUState, gpr[6]) },
833 { "r7", offsetof(CPUState, gpr[7]) },
834 { "r8", offsetof(CPUState, gpr[8]) },
835 { "r9", offsetof(CPUState, gpr[9]) },
836 { "r10", offsetof(CPUState, gpr[10]) },
837 { "r11", offsetof(CPUState, gpr[11]) },
838 { "r12", offsetof(CPUState, gpr[12]) },
839 { "r13", offsetof(CPUState, gpr[13]) },
840 { "r14", offsetof(CPUState, gpr[14]) },
841 { "r15", offsetof(CPUState, gpr[15]) },
842 { "r16", offsetof(CPUState, gpr[16]) },
843 { "r17", offsetof(CPUState, gpr[17]) },
844 { "r18", offsetof(CPUState, gpr[18]) },
845 { "r19", offsetof(CPUState, gpr[19]) },
846 { "r20", offsetof(CPUState, gpr[20]) },
847 { "r21", offsetof(CPUState, gpr[21]) },
848 { "r22", offsetof(CPUState, gpr[22]) },
849 { "r23", offsetof(CPUState, gpr[23]) },
850 { "r24", offsetof(CPUState, gpr[24]) },
851 { "r25", offsetof(CPUState, gpr[25]) },
852 { "r26", offsetof(CPUState, gpr[26]) },
853 { "r27", offsetof(CPUState, gpr[27]) },
854 { "r28", offsetof(CPUState, gpr[28]) },
855 { "r29", offsetof(CPUState, gpr[29]) },
856 { "r30", offsetof(CPUState, gpr[30]) },
857 { "r31", offsetof(CPUState, gpr[31]) },
57206fd4 858 { "nip|pc", offsetof(CPUState, nip) },
a541f297
FB		 859 { "lr", offsetof(CPUState, lr) },
860 { "ctr", offsetof(CPUState, ctr) },
9fddaa0c 861 { "decr", 0, &monitor_get_decr, },
a541f297
FB		 862 { "ccr", 0, &monitor_get_ccr, },
863 { "msr", 0, &monitor_get_msr, },
864 { "xer", 0, &monitor_get_xer, },
9fddaa0c
FB		 865 { "tbu", 0, &monitor_get_tbu, },
866 { "tbl", 0, &monitor_get_tbl, },
a541f297
FB		 867 { "sdr1", offsetof(CPUState, sdr1) },
868 { "sr0", offsetof(CPUState, sr[0]) },
869 { "sr1", offsetof(CPUState, sr[1]) },
870 { "sr2", offsetof(CPUState, sr[2]) },
871 { "sr3", offsetof(CPUState, sr[3]) },
872 { "sr4", offsetof(CPUState, sr[4]) },
873 { "sr5", offsetof(CPUState, sr[5]) },
874 { "sr6", offsetof(CPUState, sr[6]) },
875 { "sr7", offsetof(CPUState, sr[7]) },
876 { "sr8", offsetof(CPUState, sr[8]) },
877 { "sr9", offsetof(CPUState, sr[9]) },
878 { "sr10", offsetof(CPUState, sr[10]) },
879 { "sr11", offsetof(CPUState, sr[11]) },
880 { "sr12", offsetof(CPUState, sr[12]) },
881 { "sr13", offsetof(CPUState, sr[13]) },
882 { "sr14", offsetof(CPUState, sr[14]) },
883 { "sr15", offsetof(CPUState, sr[15]) },
884 /* Too lazy to put BATs and SPRs ... */
9307c4c1
FB		 885#endif
886 { NULL },
887};
888
889static void expr_error(const char *fmt)
9dc39cba 890{
9307c4c1
FB		 891 term_printf(fmt);
892 term_printf("\n");
893 longjmp(expr_env, 1);
894}
895
896static int get_monitor_def(int *pval, const char *name)
897{
898 MonitorDef *md;
899 for(md = monitor_defs; md->name != NULL; md++) {
900 if (compare_cmd(name, md->name)) {
901 if (md->get_value) {
902 *pval = md->get_value(md);
903 } else {
904 *pval = *(uint32_t *)((uint8_t *)cpu_single_env + md->offset);
905 }
906 return 0;
907 }
908 }
909 return -1;
910}
911
912static void next(void)
913{
914 if (pch != '\0') {
915 pch++;
916 while (isspace(*pch))
917 pch++;
918 }
919}
920
921static int expr_sum(void);
922
923static int expr_unary(void)
924{
925 int n;
926 char *p;
927
928 switch(*pch) {
929 case '+':
930 next();
931 n = expr_unary();
932 break;
933 case '-':
934 next();
935 n = -expr_unary();
936 break;
937 case '~':
938 next();
939 n = ~expr_unary();
940 break;
941 case '(':
942 next();
943 n = expr_sum();
944 if (*pch != ')') {
945 expr_error("')' expected");
946 }
947 next();
948 break;
949 case '$':
950 {
951 char buf[128], *q;
952
953 pch++;
954 q = buf;
955 while ((*pch >= 'a' && *pch <= 'z') ||
956 (*pch >= 'A' && *pch <= 'Z') ||
957 (*pch >= '0' && *pch <= '9') ||
57206fd4 958 *pch == '_' || *pch == '.') {
9307c4c1
FB		 959 if ((q - buf) < sizeof(buf) - 1)
960 *q++ = *pch;
961 pch++;
962 }
963 while (isspace(*pch))
964 pch++;
965 *q = 0;
966 if (get_monitor_def(&n, buf))
967 expr_error("unknown register");
968 }
969 break;
970 case '\0':
971 expr_error("unexpected end of expression");
972 n = 0;
973 break;
974 default:
975 n = strtoul(pch, &p, 0);
976 if (pch == p) {
977 expr_error("invalid char in expression");
978 }
979 pch = p;
980 while (isspace(*pch))
981 pch++;
982 break;
983 }
984 return n;
985}
986
987
988static int expr_prod(void)
989{
990 int val, val2, op;
991
992 val = expr_unary();
993 for(;;) {
994 op = *pch;
995 if (op != '*' && op != '/' && op != '%')
996 break;
997 next();
998 val2 = expr_unary();
999 switch(op) {
1000 default:
1001 case '*':
1002 val *= val2;
1003 break;
1004 case '/':
1005 case '%':
1006 if (val2 == 0)
5b60212f 1007 expr_error("division by zero");
9307c4c1
FB		 1008 if (op == '/')
1009 val /= val2;
1010 else
1011 val %= val2;
1012 break;
1013 }
1014 }
1015 return val;
1016}
1017
1018static int expr_logic(void)
1019{
1020 int val, val2, op;
1021
1022 val = expr_prod();
1023 for(;;) {
1024 op = *pch;
1025 if (op != '&' && op != '|' && op != '^')
1026 break;
1027 next();
1028 val2 = expr_prod();
1029 switch(op) {
1030 default:
1031 case '&':
1032 val &= val2;
1033 break;
1034 case '|':
1035 val |= val2;
1036 break;
1037 case '^':
1038 val ^= val2;
1039 break;
1040 }
1041 }
1042 return val;
1043}
1044
1045static int expr_sum(void)
1046{
1047 int val, val2, op;
1048
1049 val = expr_logic();
1050 for(;;) {
1051 op = *pch;
1052 if (op != '+' && op != '-')
1053 break;
1054 next();
1055 val2 = expr_logic();
1056 if (op == '+')
1057 val += val2;
1058 else
1059 val -= val2;
1060 }
1061 return val;
1062}
1063
1064static int get_expr(int *pval, const char **pp)
1065{
1066 pch = *pp;
1067 if (setjmp(expr_env)) {
1068 *pp = pch;
1069 return -1;
1070 }
1071 while (isspace(*pch))
1072 pch++;
1073 *pval = expr_sum();
1074 *pp = pch;
1075 return 0;
1076}
1077
1078static int get_str(char *buf, int buf_size, const char **pp)
1079{
1080 const char *p;
1081 char *q;
1082 int c;
1083
1084 p = *pp;
1085 while (isspace(*p))
1086 p++;
1087 if (*p == '\0') {
1088 fail:
1089 *pp = p;
1090 return -1;
1091 }
1092 q = buf;
1093 if (*p == '\"') {
1094 p++;
1095 while (*p != '\0' && *p != '\"') {
1096 if (*p == '\\') {
1097 p++;
1098 c = *p++;
1099 switch(c) {
1100 case 'n':
1101 c = '\n';
1102 break;
1103 case 'r':
1104 c = '\r';
1105 break;
1106 case '\\':
1107 case '\'':
1108 case '\"':
1109 break;
1110 default:
1111 qemu_printf("unsupported escape code: '\\%c'\n", c);
1112 goto fail;
1113 }
1114 if ((q - buf) < buf_size - 1) {
1115 *q++ = c;
1116 }
1117 } else {
1118 if ((q - buf) < buf_size - 1) {
1119 *q++ = *p;
1120 }
1121 p++;
1122 }
1123 }
1124 if (*p != '\"') {
5b60212f 1125 qemu_printf("unterminated string\n");
9307c4c1
FB		 1126 goto fail;
1127 }
1128 p++;
1129 } else {
1130 while (*p != '\0' && !isspace(*p)) {
1131 if ((q - buf) < buf_size - 1) {
1132 *q++ = *p;
1133 }
1134 p++;
1135 }
1136 *q = '\0';
1137 }
1138 *pp = p;
1139 return 0;
1140}
1141
1142static int default_fmt_format = 'x';
1143static int default_fmt_size = 4;
1144
1145#define MAX_ARGS 16
1146
1147static void term_handle_command(const char *cmdline)
1148{
1149 const char *p, *pstart, *typestr;
1150 char *q;
1151 int c, nb_args, len, i, has_arg;
9dc39cba 1152 term_cmd_t *cmd;
9307c4c1
FB		 1153 char cmdname[256];
1154 char buf[1024];
1155 void *str_allocated[MAX_ARGS];
1156 void *args[MAX_ARGS];
9dc39cba
FB		 1157
1158#ifdef DEBUG
1159 term_printf("command='%s'\n", cmdline);
1160#endif
1161
9307c4c1 1162 /* extract the command name */
9dc39cba 1163 p = cmdline;
9307c4c1
FB		 1164 q = cmdname;
1165 while (isspace(*p))
1166 p++;
1167 if (*p == '\0')
1168 return;
1169 pstart = p;
1170 while (*p != '\0' && *p != '/' && !isspace(*p))
1171 p++;
1172 len = p - pstart;
1173 if (len > sizeof(cmdname) - 1)
1174 len = sizeof(cmdname) - 1;
1175 memcpy(cmdname, pstart, len);
1176 cmdname[len] = '\0';
1177
1178 /* find the command */
1179 for(cmd = term_cmds; cmd->name != NULL; cmd++) {
1180 if (compare_cmd(cmdname, cmd->name))
1181 goto found;
1182 }
1183 term_printf("unknown command: '%s'\n", cmdname);
1184 return;
1185 found:
1186
1187 for(i = 0; i < MAX_ARGS; i++)
1188 str_allocated[i] = NULL;
1189
1190 /* parse the parameters */
1191 typestr = cmd->args_type;
1192 nb_args = 0;
9dc39cba 1193 for(;;) {
9307c4c1
FB		 1194 c = *typestr;
1195 if (c == '\0')
9dc39cba 1196 break;
9307c4c1
FB		 1197 typestr++;
1198 switch(c) {
1199 case 'F':
1200 case 's':
1201 {
1202 int ret;
1203 char *str;
1204
1205 while (isspace(*p))
1206 p++;
1207 if (*typestr == '?') {
1208 typestr++;
1209 if (*p == '\0') {
1210 /* no optional string: NULL argument */
1211 str = NULL;
1212 goto add_str;
1213 }
1214 }
1215 ret = get_str(buf, sizeof(buf), &p);
1216 if (ret < 0) {
1217 if (c == 'F')
1218 term_printf("%s: filename expected\n", cmdname);
1219 else
1220 term_printf("%s: string expected\n", cmdname);
1221 goto fail;
1222 }
1223 str = qemu_malloc(strlen(buf) + 1);
1224 strcpy(str, buf);
1225 str_allocated[nb_args] = str;
1226 add_str:
1227 if (nb_args >= MAX_ARGS) {
1228 error_args:
1229 term_printf("%s: too many arguments\n", cmdname);
1230 goto fail;
1231 }
1232 args[nb_args++] = str;
1233 }
9dc39cba 1234 break;
9307c4c1
FB		 1235 case '/':
1236 {
1237 int count, format, size;
1238
1239 while (isspace(*p))
1240 p++;
1241 if (*p == '/') {
1242 /* format found */
1243 p++;
1244 count = 1;
1245 if (isdigit(*p)) {
1246 count = 0;
1247 while (isdigit(*p)) {
1248 count = count * 10 + (*p - '0');
1249 p++;
1250 }
1251 }
1252 size = -1;
1253 format = -1;
1254 for(;;) {
1255 switch(*p) {
1256 case 'o':
1257 case 'd':
1258 case 'u':
1259 case 'x':
1260 case 'i':
1261 case 'c':
1262 format = *p++;
1263 break;
1264 case 'b':
1265 size = 1;
1266 p++;
1267 break;
1268 case 'h':
1269 size = 2;
1270 p++;
1271 break;
1272 case 'w':
1273 size = 4;
1274 p++;
1275 break;
1276 case 'g':
1277 case 'L':
1278 size = 8;
1279 p++;
1280 break;
1281 default:
1282 goto next;
1283 }
1284 }
1285 next:
1286 if (*p != '\0' && !isspace(*p)) {
1287 term_printf("invalid char in format: '%c'\n", *p);
1288 goto fail;
1289 }
9307c4c1
FB		 1290 if (format < 0)
1291 format = default_fmt_format;
4c27ba27
FB		 1292 if (format != 'i') {
1293 /* for 'i', not specifying a size gives -1 as size */
1294 if (size < 0)
1295 size = default_fmt_size;
1296 }
9307c4c1
FB		 1297 default_fmt_size = size;
1298 default_fmt_format = format;
1299 } else {
1300 count = 1;
1301 format = default_fmt_format;
4c27ba27
FB		 1302 if (format != 'i') {
1303 size = default_fmt_size;
1304 } else {
1305 size = -1;
1306 }
9307c4c1
FB		 1307 }
1308 if (nb_args + 3 > MAX_ARGS)
1309 goto error_args;
1310 args[nb_args++] = (void*)count;
1311 args[nb_args++] = (void*)format;
1312 args[nb_args++] = (void*)size;
1313 }
9dc39cba 1314 break;
9307c4c1
FB		 1315 case 'i':
1316 {
1317 int val;
1318 while (isspace(*p))
1319 p++;
3440557b 1320 if (*typestr == '?' || *typestr == '.') {
9307c4c1 1321 typestr++;
3440557b
FB		 1322 if (*typestr == '?') {
1323 if (*p == '\0')
1324 has_arg = 0;
1325 else
1326 has_arg = 1;
1327 } else {
1328 if (*p == '.') {
1329 p++;
1330 while (isspace(*p))
1331 p++;
1332 has_arg = 1;
1333 } else {
1334 has_arg = 0;
1335 }
1336 }
9307c4c1
FB		 1337 if (nb_args >= MAX_ARGS)
1338 goto error_args;
1339 args[nb_args++] = (void *)has_arg;
1340 if (!has_arg) {
1341 if (nb_args >= MAX_ARGS)
1342 goto error_args;
1343 val = -1;
1344 goto add_num;
1345 }
1346 }
1347 if (get_expr(&val, &p))
1348 goto fail;
1349 add_num:
1350 if (nb_args >= MAX_ARGS)
1351 goto error_args;
1352 args[nb_args++] = (void *)val;
1353 }
1354 break;
1355 case '-':
1356 {
1357 int has_option;
1358 /* option */
1359
1360 c = *typestr++;
1361 if (c == '\0')
1362 goto bad_type;
1363 while (isspace(*p))
1364 p++;
1365 has_option = 0;
1366 if (*p == '-') {
1367 p++;
1368 if (*p != c) {
1369 term_printf("%s: unsupported option -%c\n",
1370 cmdname, *p);
1371 goto fail;
1372 }
1373 p++;
1374 has_option = 1;
1375 }
1376 if (nb_args >= MAX_ARGS)
1377 goto error_args;
1378 args[nb_args++] = (void *)has_option;
1379 }
1380 break;
1381 default:
1382 bad_type:
1383 term_printf("%s: unknown type '%c'\n", cmdname, c);
1384 goto fail;
1385 }
9dc39cba 1386 }
9307c4c1
FB		 1387 /* check that all arguments were parsed */
1388 while (isspace(*p))
1389 p++;
1390 if (*p != '\0') {
1391 term_printf("%s: extraneous characters at the end of line\n",
1392 cmdname);
1393 goto fail;
9dc39cba 1394 }
9307c4c1
FB		 1395
1396 switch(nb_args) {
1397 case 0:
1398 cmd->handler();
1399 break;
1400 case 1:
1401 cmd->handler(args[0]);
1402 break;
1403 case 2:
1404 cmd->handler(args[0], args[1]);
1405 break;
1406 case 3:
1407 cmd->handler(args[0], args[1], args[2]);
1408 break;
1409 case 4:
1410 cmd->handler(args[0], args[1], args[2], args[3]);
1411 break;
1412 case 5:
1413 cmd->handler(args[0], args[1], args[2], args[3], args[4]);
1414 break;
3440557b
FB		 1415 case 6:
1416 cmd->handler(args[0], args[1], args[2], args[3], args[4], args[5]);
1417 break;
9307c4c1
FB		 1418 default:
1419 term_printf("unsupported number of arguments: %d\n", nb_args);
1420 goto fail;
9dc39cba 1421 }
9307c4c1
FB		 1422 fail:
1423 for(i = 0; i < MAX_ARGS; i++)
1424 qemu_free(str_allocated[i]);
9dc39cba 1425 return;
9dc39cba
FB		 1426}
1427
1428static void term_show_prompt(void)
1429{
1430 term_printf("(qemu) ");
1431 fflush(stdout);
1432 term_cmd_buf_index = 0;
1433 term_cmd_buf_size = 0;
1434 term_esc_state = IS_NORM;
1435}
1436
aa455485
FB		 1437static void term_print_cmdline (const char *cmdline)
1438{
1439 term_show_prompt();
1440 term_printf(cmdline);
1441 term_flush();
1442}
1443
9dc39cba
FB		 1444static void term_insert_char(int ch)
1445{
1446 if (term_cmd_buf_index < TERM_CMD_BUF_SIZE) {
1447 memmove(term_cmd_buf + term_cmd_buf_index + 1,
1448 term_cmd_buf + term_cmd_buf_index,
1449 term_cmd_buf_size - term_cmd_buf_index);
1450 term_cmd_buf[term_cmd_buf_index] = ch;
1451 term_cmd_buf_size++;
1452 term_printf("\033[@%c", ch);
1453 term_cmd_buf_index++;
1454 term_flush();
1455 }
1456}
1457
1458static void term_backward_char(void)
1459{
1460 if (term_cmd_buf_index > 0) {
1461 term_cmd_buf_index--;
1462 term_printf("\033[D");
1463 term_flush();
1464 }
1465}
1466
1467static void term_forward_char(void)
1468{
1469 if (term_cmd_buf_index < term_cmd_buf_size) {
1470 term_cmd_buf_index++;
1471 term_printf("\033[C");
1472 term_flush();
1473 }
1474}
1475
1476static void term_delete_char(void)
1477{
1478 if (term_cmd_buf_index < term_cmd_buf_size) {
1479 memmove(term_cmd_buf + term_cmd_buf_index,
1480 term_cmd_buf + term_cmd_buf_index + 1,
1481 term_cmd_buf_size - term_cmd_buf_index - 1);
1482 term_printf("\033[P");
1483 term_cmd_buf_size--;
1484 term_flush();
1485 }
1486}
1487
1488static void term_backspace(void)
1489{
1490 if (term_cmd_buf_index > 0) {
1491 term_backward_char();
1492 term_delete_char();
1493 }
1494}
1495
1496static void term_bol(void)
1497{
1498 while (term_cmd_buf_index > 0)
1499 term_backward_char();
1500}
1501
1502static void term_eol(void)
1503{
1504 while (term_cmd_buf_index < term_cmd_buf_size)
1505 term_forward_char();
1506}
1507
aa455485
FB		 1508static void term_up_char(void)
1509{
1510 int idx;
1511
1512 if (term_hist_entry == 0)
1513 return;
1514 if (term_hist_entry == -1) {
1515 /* Find latest entry */
1516 for (idx = 0; idx < TERM_MAX_CMDS; idx++) {
1517 if (term_history[idx] == NULL)
1518 break;
1519 }
1520 term_hist_entry = idx;
1521 }
1522 term_hist_entry--;
1523 if (term_hist_entry >= 0) {
1524 strcpy(term_cmd_buf, term_history[term_hist_entry]);
1525 term_printf("\n");
1526 term_print_cmdline(term_cmd_buf);
1527 term_cmd_buf_index = term_cmd_buf_size = strlen(term_cmd_buf);
1528 }
1529}
1530
1531static void term_down_char(void)
1532{
1533 if (term_hist_entry == TERM_MAX_CMDS - 1 || term_hist_entry == -1)
1534 return;
1535 if (term_history[++term_hist_entry] != NULL) {
1536 strcpy(term_cmd_buf, term_history[term_hist_entry]);
1537 } else {
1538 term_hist_entry = -1;
1539 }
1540 term_printf("\n");
1541 term_print_cmdline(term_cmd_buf);
1542 term_cmd_buf_index = term_cmd_buf_size = strlen(term_cmd_buf);
1543}
1544
1545static void term_hist_add(const char *cmdline)
1546{
1547 char *hist_entry, *new_entry;
1548 int idx;
1549
1550 if (cmdline[0] == '\0')
1551 return;
1552 new_entry = NULL;
1553 if (term_hist_entry != -1) {
1554 /* We were editing an existing history entry: replace it */
1555 hist_entry = term_history[term_hist_entry];
1556 idx = term_hist_entry;
1557 if (strcmp(hist_entry, cmdline) == 0) {
1558 goto same_entry;
1559 }
1560 }
1561 /* Search cmdline in history buffers */
1562 for (idx = 0; idx < TERM_MAX_CMDS; idx++) {
1563 hist_entry = term_history[idx];
1564 if (hist_entry == NULL)
1565 break;
1566 if (strcmp(hist_entry, cmdline) == 0) {
1567 same_entry:
1568 new_entry = hist_entry;
1569 /* Put this entry at the end of history */
1570 memmove(&term_history[idx], &term_history[idx + 1],
1571 &term_history[TERM_MAX_CMDS] - &term_history[idx + 1]);
1572 term_history[TERM_MAX_CMDS - 1] = NULL;
1573 for (; idx < TERM_MAX_CMDS; idx++) {
1574 if (term_history[idx] == NULL)
1575 break;
1576 }
1577 break;
1578 }
1579 }
1580 if (idx == TERM_MAX_CMDS) {
1581 /* Need to get one free slot */
1582 free(term_history[0]);
1583 memcpy(term_history, &term_history[1],
1584 &term_history[TERM_MAX_CMDS] - &term_history[1]);
1585 term_history[TERM_MAX_CMDS - 1] = NULL;
1586 idx = TERM_MAX_CMDS - 1;
1587 }
1588 if (new_entry == NULL)
1589 new_entry = strdup(cmdline);
1590 term_history[idx] = new_entry;
1591 term_hist_entry = -1;
1592}
1593
9dc39cba
FB		 1594/* return true if command handled */
1595static void term_handle_byte(int ch)
1596{
1597 switch(term_esc_state) {
1598 case IS_NORM:
1599 switch(ch) {
1600 case 1:
1601 term_bol();
1602 break;
1603 case 5:
1604 term_eol();
1605 break;
1606 case 10:
1607 case 13:
1608 term_cmd_buf[term_cmd_buf_size] = '\0';
aa455485 1609 term_hist_add(term_cmd_buf);
9dc39cba
FB		 1610 term_printf("\n");
1611 term_handle_command(term_cmd_buf);
1612 term_show_prompt();
1613 break;
1614 case 27:
1615 term_esc_state = IS_ESC;
1616 break;
1617 case 127:
1618 case 8:
1619 term_backspace();
1620 break;
aa455485
FB		 1621 case 155:
1622 term_esc_state = IS_CSI;
1623 break;
9dc39cba
FB		 1624 default:
1625 if (ch >= 32) {
1626 term_insert_char(ch);
1627 }
1628 break;
1629 }
1630 break;
1631 case IS_ESC:
1632 if (ch == '[') {
1633 term_esc_state = IS_CSI;
1634 term_esc_param = 0;
1635 } else {
1636 term_esc_state = IS_NORM;
1637 }
1638 break;
1639 case IS_CSI:
1640 switch(ch) {
aa455485
FB		 1641 case 'A':
1642 case 'F':
1643 term_up_char();
1644 break;
1645 case 'B':
1646 case 'E':
1647 term_down_char();
1648 break;
9dc39cba
FB		 1649 case 'D':
1650 term_backward_char();
1651 break;
1652 case 'C':
1653 term_forward_char();
1654 break;
1655 case '0' ... '9':
1656 term_esc_param = term_esc_param * 10 + (ch - '0');
1657 goto the_end;
1658 case '~':
1659 switch(term_esc_param) {
1660 case 1:
1661 term_bol();
1662 break;
1663 case 3:
1664 term_delete_char();
1665 break;
1666 case 4:
1667 term_eol();
1668 break;
1669 }
1670 break;
1671 default:
1672 break;
1673 }
1674 term_esc_state = IS_NORM;
1675 the_end:
1676 break;
1677 }
1678}
1679
1680/*************************************************************/
1681/* serial console support */
1682
1683#define TERM_ESCAPE 0x01 /* ctrl-a is used for escape */
1684
1685static int term_got_escape, term_command;
1686
1687void term_print_help(void)
1688{
1689 term_printf("\n"
1690 "C-a h print this help\n"
1691 "C-a x exit emulatior\n"
9dc39cba
FB		 1692 "C-a s save disk data back to file (if -snapshot)\n"
1693 "C-a b send break (magic sysrq)\n"
1694 "C-a c switch between console and monitor\n"
1695 "C-a C-a send C-a\n"
1696 );
1697}
1698
1699/* called when a char is received */
1700static void term_received_byte(int ch)
1701{
1702 if (!serial_console) {
1703 /* if no serial console, handle every command */
1704 term_handle_byte(ch);
1705 } else {
1706 if (term_got_escape) {
1707 term_got_escape = 0;
1708 switch(ch) {
1709 case 'h':
1710 term_print_help();
1711 break;
1712 case 'x':
1713 exit(0);
1714 break;
1715 case 's':
1716 {
1717 int i;
1718 for (i = 0; i < MAX_DISKS; i++) {
1719 if (bs_table[i])
1720 bdrv_commit(bs_table[i]);
1721 }
1722 }
1723 break;
1724 case 'b':
1725 if (serial_console)
1726 serial_receive_break(serial_console);
1727 break;
1728 case 'c':
1729 if (!term_command) {
1730 term_show_prompt();
1731 term_command = 1;
1732 } else {
1733 term_command = 0;
1734 }
1735 break;
9dc39cba
FB		 1736 case TERM_ESCAPE:
1737 goto send_char;
1738 }
1739 } else if (ch == TERM_ESCAPE) {
1740 term_got_escape = 1;
1741 } else {
1742 send_char:
1743 if (term_command) {
1744 term_handle_byte(ch);
1745 } else {
1746 if (serial_console)
1747 serial_receive_byte(serial_console, ch);
1748 }
1749 }
1750 }
1751}
1752
1753static int term_can_read(void *opaque)
1754{
1755 if (serial_console) {
1756 return serial_can_receive(serial_console);
1757 } else {
f193c797 1758 return 128;
9dc39cba
FB		 1759 }
1760}
1761
1762static void term_read(void *opaque, const uint8_t *buf, int size)
1763{
1764 int i;
1765 for(i = 0; i < size; i++)
1766 term_received_byte(buf[i]);
1767}
1768
1769void monitor_init(void)
1770{
1771 if (!serial_console) {
1772 term_printf("QEMU %s monitor - type 'help' for more information\n",
1773 QEMU_VERSION);
1774 term_show_prompt();
1775 }
aa455485 1776 term_hist_entry = -1;
8a7ddc38 1777 qemu_add_fd_read_handler(0, term_can_read, term_read, NULL);
9dc39cba 1778}
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