4 * Copyright (c) 2003-2004 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
30 #define offsetof(type, field) ((size_t) &((type *)0)->field)
33 #define TERM_CMD_BUF_SIZE 4095
34 #define TERM_MAX_CMDS 64
40 #define printf do_not_use_printf
42 static char term_cmd_buf[TERM_CMD_BUF_SIZE + 1];
43 static int term_cmd_buf_index;
44 static int term_cmd_buf_size;
45 static int term_esc_state;
46 static int term_esc_param;
48 static char *term_history[TERM_MAX_CMDS];
49 static int term_hist_entry;
55 * 's' string (accept optional quote)
57 * '/' optional gdb-like print format (like "/10x")
59 * '?' optional type (for 'F', 's' and 'i')
63 typedef struct term_cmd_t {
65 const char *args_type;
71 static term_cmd_t term_cmds[];
72 static term_cmd_t info_cmds[];
74 void term_printf(const char *fmt, ...)
87 static int compare_cmd(const char *name, const char *list)
89 const char *p, *pstart;
97 p = pstart + strlen(pstart);
98 if ((p - pstart) == len && !memcmp(pstart, name, len))
107 static void help_cmd1(term_cmd_t *cmds, const char *prefix, const char *name)
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);
117 static void help_cmd(const char *name)
119 if (name && !strcmp(name, "info")) {
120 help_cmd1(info_cmds, "info ", NULL);
122 help_cmd1(term_cmds, "", name);
123 if (name && !strcmp(name, "log")) {
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);
134 static void do_help(const char *name)
139 static void do_commit(void)
143 for (i = 0; i < MAX_DISKS; i++) {
145 bdrv_commit(bs_table[i]);
149 static void do_info(const char *item)
155 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
156 if (compare_cmd(item, cmd->name))
166 static void do_info_network(void)
171 for(i = 0; i < nb_nics; i++) {
173 term_printf("%d: ifname=%s macaddr=", i, nd->ifname);
174 for(j = 0; j < 6; j++) {
177 term_printf("%02x", nd->macaddr[j]);
183 static void do_info_block(void)
188 static void do_info_registers(void)
191 cpu_dump_state(cpu_single_env, stdout, X86_DUMP_FPU | X86_DUMP_CCOP);
193 cpu_dump_state(cpu_single_env, stdout, 0);
197 static void do_info_history (void)
201 for (i = 0; i < TERM_MAX_CMDS; i++) {
202 if (term_history[i] == NULL)
204 term_printf("%d: '%s'\n", i, term_history[i]);
208 static void do_quit(void)
213 static int eject_device(BlockDriverState *bs, int force)
215 if (bdrv_is_inserted(bs)) {
217 if (!bdrv_is_removable(bs)) {
218 term_printf("device is not removable\n");
221 if (bdrv_is_locked(bs)) {
222 term_printf("device is locked\n");
231 static void do_eject(int force, const char *filename)
233 BlockDriverState *bs;
235 term_printf("%d %s\n", force, filename);
237 bs = bdrv_find(filename);
239 term_printf("device not found\n");
242 eject_device(bs, force);
245 static void do_change(const char *device, const char *filename)
247 BlockDriverState *bs;
249 bs = bdrv_find(device);
251 term_printf("device not found\n");
254 if (eject_device(bs, 0) < 0)
256 bdrv_open(bs, filename, 0);
259 static void do_screen_dump(const char *filename)
261 vga_screen_dump(filename);
264 static void do_log(const char *items)
268 if (!strcmp(items, "none")) {
271 mask = cpu_str_to_log_mask(items);
280 static void do_savevm(const char *filename)
282 if (qemu_savevm(filename) < 0)
283 term_printf("I/O error when saving VM to '%s'\n", filename);
286 static void do_loadvm(const char *filename)
288 if (qemu_loadvm(filename) < 0)
289 term_printf("I/O error when loading VM from '%s'\n", filename);
292 static void do_stop(void)
294 vm_stop(EXCP_INTERRUPT);
297 static void do_cont(void)
302 #ifdef CONFIG_GDBSTUB
303 static void do_gdbserver(int has_port, int port)
306 port = DEFAULT_GDBSTUB_PORT;
307 if (gdbserver_start(port) < 0) {
308 qemu_printf("Could not open gdbserver socket on port %d\n", port);
310 qemu_printf("Waiting gdb connection on port %d\n", port);
315 static void term_printc(int c)
332 if (c >= 32 && c <= 126) {
333 term_printf("%c", c);
335 term_printf("\\x%02x", c);
342 static void memory_dump(int count, int format, int wsize,
343 target_ulong addr, int is_physical)
345 int nb_per_line, l, line_size, i, max_digits, len;
355 } else if (wsize == 4) {
358 /* as default we use the current CS size */
360 if (!(cpu_single_env->segs[R_CS].flags & DESC_B_MASK))
364 monitor_disas(addr, count, is_physical, flags);
373 nb_per_line = line_size / wsize;
378 max_digits = (wsize * 8 + 2) / 3;
382 max_digits = (wsize * 8) / 4;
386 max_digits = (wsize * 8 * 10 + 32) / 33;
394 term_printf("0x%08x:", addr);
399 cpu_physical_memory_rw(addr, buf, l, 0);
401 cpu_memory_rw_debug(cpu_single_env, addr, buf, l, 0);
408 v = ldub_raw(buf + i);
411 v = lduw_raw(buf + i);
414 v = ldl_raw(buf + i);
417 v = ldq_raw(buf + i);
423 term_printf("%#*llo", max_digits, v);
426 term_printf("0x%0*llx", max_digits, v);
429 term_printf("%*llu", max_digits, v);
432 term_printf("%*lld", max_digits, v);
446 static void do_memory_dump(int count, int format, int size, int addr)
448 memory_dump(count, format, size, addr, 0);
451 static void do_physical_memory_dump(int count, int format, int size, int addr)
453 memory_dump(count, format, size, addr, 1);
456 static void do_print(int count, int format, int size, int val)
460 term_printf("%#o", val);
463 term_printf("%#x", val);
466 term_printf("%u", val);
470 term_printf("%d", val);
479 static term_cmd_t term_cmds[] = {
480 { "help|?", "s?", do_help,
481 "[cmd]", "show the help" },
482 { "commit", "", do_commit,
483 "", "commit changes to the disk images (if -snapshot is used)" },
484 { "info", "s?", do_info,
485 "subcommand", "show various information about the system state" },
486 { "q|quit", "", do_quit,
487 "", "quit the emulator" },
488 { "eject", "-fs", do_eject,
489 "[-f] device", "eject a removable media (use -f to force it)" },
490 { "change", "sF", do_change,
491 "device filename", "change a removable media" },
492 { "screendump", "F", do_screen_dump,
493 "filename", "save screen into PPM image 'filename'" },
494 { "log", "s", do_log,
495 "item1[,...]", "activate logging of the specified items to '/tmp/qemu.log'" },
496 { "savevm", "F", do_savevm,
497 "filename", "save the whole virtual machine state to 'filename'" },
498 { "loadvm", "F", do_loadvm,
499 "filename", "restore the whole virtual machine state from 'filename'" },
500 { "stop", "", do_stop,
501 "", "stop emulation", },
502 { "c|cont", "", do_cont,
503 "", "resume emulation", },
504 #ifdef CONFIG_GDBSTUB
505 { "gdbserver", "i?", do_gdbserver,
506 "[port]", "start gdbserver session (default port=1234)", },
508 { "x", "/i", do_memory_dump,
509 "/fmt addr", "virtual memory dump starting at 'addr'", },
510 { "xp", "/i", do_physical_memory_dump,
511 "/fmt addr", "physical memory dump starting at 'addr'", },
512 { "p|print", "/i", do_print,
513 "/fmt expr", "print expression value (use $reg for CPU register access)", },
517 static term_cmd_t info_cmds[] = {
518 { "network", "", do_info_network,
519 "", "show the network state" },
520 { "block", "", do_info_block,
521 "", "show the block devices" },
522 { "registers", "", do_info_registers,
523 "", "show the cpu registers" },
524 { "history", "", do_info_history,
525 "", "show the command line history", },
526 { "pic", "", pic_info,
527 "", "show i8259 (PIC) state", },
528 { "pci", "", pci_info,
529 "", "show PCI info", },
533 /*******************************************************************/
535 static const char *pch;
536 static jmp_buf expr_env;
538 typedef struct MonitorDef {
541 int (*get_value)(struct MonitorDef *md);
544 #if defined(TARGET_I386)
545 static int monitor_get_pc (struct MonitorDef *md)
547 return cpu_single_env->eip + (long)cpu_single_env->segs[R_CS].base;
551 #if defined(TARGET_PPC)
552 static int monitor_get_ccr (struct MonitorDef *md)
558 for (i = 0; i < 8; i++)
559 u |= cpu_single_env->crf[i] << (32 - (4 * i));
564 static int monitor_get_msr (struct MonitorDef *md)
566 return (cpu_single_env->msr[MSR_POW] << MSR_POW) |
567 (cpu_single_env->msr[MSR_ILE] << MSR_ILE) |
568 (cpu_single_env->msr[MSR_EE] << MSR_EE) |
569 (cpu_single_env->msr[MSR_PR] << MSR_PR) |
570 (cpu_single_env->msr[MSR_FP] << MSR_FP) |
571 (cpu_single_env->msr[MSR_ME] << MSR_ME) |
572 (cpu_single_env->msr[MSR_FE0] << MSR_FE0) |
573 (cpu_single_env->msr[MSR_SE] << MSR_SE) |
574 (cpu_single_env->msr[MSR_BE] << MSR_BE) |
575 (cpu_single_env->msr[MSR_FE1] << MSR_FE1) |
576 (cpu_single_env->msr[MSR_IP] << MSR_IP) |
577 (cpu_single_env->msr[MSR_IR] << MSR_IR) |
578 (cpu_single_env->msr[MSR_DR] << MSR_DR) |
579 (cpu_single_env->msr[MSR_RI] << MSR_RI) |
580 (cpu_single_env->msr[MSR_LE] << MSR_LE);
583 static int monitor_get_xer (struct MonitorDef *md)
585 return (cpu_single_env->xer[XER_SO] << XER_SO) |
586 (cpu_single_env->xer[XER_OV] << XER_OV) |
587 (cpu_single_env->xer[XER_CA] << XER_CA) |
588 (cpu_single_env->xer[XER_BC] << XER_BC);
592 static MonitorDef monitor_defs[] = {
595 #define SEG(name, seg) \
596 { name, offsetof(CPUState, segs[seg].selector) },\
597 { name ".base", offsetof(CPUState, segs[seg].base) },\
598 { name ".limit", offsetof(CPUState, segs[seg].limit) },
600 { "eax", offsetof(CPUState, regs[0]) },
601 { "ecx", offsetof(CPUState, regs[1]) },
602 { "edx", offsetof(CPUState, regs[2]) },
603 { "ebx", offsetof(CPUState, regs[3]) },
604 { "esp|sp", offsetof(CPUState, regs[4]) },
605 { "ebp|fp", offsetof(CPUState, regs[5]) },
606 { "esi", offsetof(CPUState, regs[6]) },
607 { "esi", offsetof(CPUState, regs[7]) },
608 { "eflags", offsetof(CPUState, eflags) },
609 { "eip", offsetof(CPUState, eip) },
615 { "pc", 0, monitor_get_pc, },
616 #elif defined(TARGET_PPC)
617 { "r0", offsetof(CPUState, gpr[0]) },
618 { "r1", offsetof(CPUState, gpr[1]) },
619 { "r2", offsetof(CPUState, gpr[2]) },
620 { "r3", offsetof(CPUState, gpr[3]) },
621 { "r4", offsetof(CPUState, gpr[4]) },
622 { "r5", offsetof(CPUState, gpr[5]) },
623 { "r6", offsetof(CPUState, gpr[6]) },
624 { "r7", offsetof(CPUState, gpr[7]) },
625 { "r8", offsetof(CPUState, gpr[8]) },
626 { "r9", offsetof(CPUState, gpr[9]) },
627 { "r10", offsetof(CPUState, gpr[10]) },
628 { "r11", offsetof(CPUState, gpr[11]) },
629 { "r12", offsetof(CPUState, gpr[12]) },
630 { "r13", offsetof(CPUState, gpr[13]) },
631 { "r14", offsetof(CPUState, gpr[14]) },
632 { "r15", offsetof(CPUState, gpr[15]) },
633 { "r16", offsetof(CPUState, gpr[16]) },
634 { "r17", offsetof(CPUState, gpr[17]) },
635 { "r18", offsetof(CPUState, gpr[18]) },
636 { "r19", offsetof(CPUState, gpr[19]) },
637 { "r20", offsetof(CPUState, gpr[20]) },
638 { "r21", offsetof(CPUState, gpr[21]) },
639 { "r22", offsetof(CPUState, gpr[22]) },
640 { "r23", offsetof(CPUState, gpr[23]) },
641 { "r24", offsetof(CPUState, gpr[24]) },
642 { "r25", offsetof(CPUState, gpr[25]) },
643 { "r26", offsetof(CPUState, gpr[26]) },
644 { "r27", offsetof(CPUState, gpr[27]) },
645 { "r28", offsetof(CPUState, gpr[28]) },
646 { "r29", offsetof(CPUState, gpr[29]) },
647 { "r30", offsetof(CPUState, gpr[30]) },
648 { "r31", offsetof(CPUState, gpr[31]) },
649 { "nip|pc", offsetof(CPUState, nip) },
650 { "lr", offsetof(CPUState, lr) },
651 { "ctr", offsetof(CPUState, ctr) },
652 { "decr", offsetof(CPUState, decr) },
653 { "ccr", 0, &monitor_get_ccr, },
654 { "msr", 0, &monitor_get_msr, },
655 { "xer", 0, &monitor_get_xer, },
656 { "tbu", offsetof(CPUState, tb[0]) },
657 { "tbl", offsetof(CPUState, tb[1]) },
658 { "sdr1", offsetof(CPUState, sdr1) },
659 { "sr0", offsetof(CPUState, sr[0]) },
660 { "sr1", offsetof(CPUState, sr[1]) },
661 { "sr2", offsetof(CPUState, sr[2]) },
662 { "sr3", offsetof(CPUState, sr[3]) },
663 { "sr4", offsetof(CPUState, sr[4]) },
664 { "sr5", offsetof(CPUState, sr[5]) },
665 { "sr6", offsetof(CPUState, sr[6]) },
666 { "sr7", offsetof(CPUState, sr[7]) },
667 { "sr8", offsetof(CPUState, sr[8]) },
668 { "sr9", offsetof(CPUState, sr[9]) },
669 { "sr10", offsetof(CPUState, sr[10]) },
670 { "sr11", offsetof(CPUState, sr[11]) },
671 { "sr12", offsetof(CPUState, sr[12]) },
672 { "sr13", offsetof(CPUState, sr[13]) },
673 { "sr14", offsetof(CPUState, sr[14]) },
674 { "sr15", offsetof(CPUState, sr[15]) },
675 /* Too lazy to put BATs and SPRs ... */
680 static void expr_error(const char *fmt)
684 longjmp(expr_env, 1);
687 static int get_monitor_def(int *pval, const char *name)
690 for(md = monitor_defs; md->name != NULL; md++) {
691 if (compare_cmd(name, md->name)) {
693 *pval = md->get_value(md);
695 *pval = *(uint32_t *)((uint8_t *)cpu_single_env + md->offset);
703 static void next(void)
707 while (isspace(*pch))
712 static int expr_sum(void);
714 static int expr_unary(void)
736 expr_error("')' expected");
746 while ((*pch >= 'a' && *pch <= 'z') ||
747 (*pch >= 'A' && *pch <= 'Z') ||
748 (*pch >= '0' && *pch <= '9') ||
749 *pch == '_' || *pch == '.') {
750 if ((q - buf) < sizeof(buf) - 1)
754 while (isspace(*pch))
757 if (get_monitor_def(&n, buf))
758 expr_error("unknown register");
762 expr_error("unexpected end of expression");
766 n = strtoul(pch, &p, 0);
768 expr_error("invalid char in expression");
771 while (isspace(*pch))
779 static int expr_prod(void)
786 if (op != '*' && op != '/' && op != '%')
798 expr_error("divison by zero");
809 static int expr_logic(void)
816 if (op != '&' && op != '|' && op != '^')
836 static int expr_sum(void)
843 if (op != '+' && op != '-')
855 static int get_expr(int *pval, const char **pp)
858 if (setjmp(expr_env)) {
862 while (isspace(*pch))
869 static int get_str(char *buf, int buf_size, const char **pp)
886 while (*p != '\0' && *p != '\"') {
902 qemu_printf("unsupported escape code: '\\%c'\n", c);
905 if ((q - buf) < buf_size - 1) {
909 if ((q - buf) < buf_size - 1) {
916 qemu_printf("untermintated string\n");
921 while (*p != '\0' && !isspace(*p)) {
922 if ((q - buf) < buf_size - 1) {
933 static int default_fmt_format = 'x';
934 static int default_fmt_size = 4;
938 static void term_handle_command(const char *cmdline)
940 const char *p, *pstart, *typestr;
942 int c, nb_args, len, i, has_arg;
946 void *str_allocated[MAX_ARGS];
947 void *args[MAX_ARGS];
950 term_printf("command='%s'\n", cmdline);
953 /* extract the command name */
961 while (*p != '\0' && *p != '/' && !isspace(*p))
964 if (len > sizeof(cmdname) - 1)
965 len = sizeof(cmdname) - 1;
966 memcpy(cmdname, pstart, len);
969 /* find the command */
970 for(cmd = term_cmds; cmd->name != NULL; cmd++) {
971 if (compare_cmd(cmdname, cmd->name))
974 term_printf("unknown command: '%s'\n", cmdname);
978 for(i = 0; i < MAX_ARGS; i++)
979 str_allocated[i] = NULL;
981 /* parse the parameters */
982 typestr = cmd->args_type;
998 if (*typestr == '?') {
1001 /* no optional string: NULL argument */
1006 ret = get_str(buf, sizeof(buf), &p);
1009 term_printf("%s: filename expected\n", cmdname);
1011 term_printf("%s: string expected\n", cmdname);
1014 str = qemu_malloc(strlen(buf) + 1);
1016 str_allocated[nb_args] = str;
1018 if (nb_args >= MAX_ARGS) {
1020 term_printf("%s: too many arguments\n", cmdname);
1023 args[nb_args++] = str;
1028 int count, format, size;
1038 while (isdigit(*p)) {
1039 count = count * 10 + (*p - '0');
1077 if (*p != '\0' && !isspace(*p)) {
1078 term_printf("invalid char in format: '%c'\n", *p);
1082 format = default_fmt_format;
1083 if (format != 'i') {
1084 /* for 'i', not specifying a size gives -1 as size */
1086 size = default_fmt_size;
1088 default_fmt_size = size;
1089 default_fmt_format = format;
1092 format = default_fmt_format;
1093 if (format != 'i') {
1094 size = default_fmt_size;
1099 if (nb_args + 3 > MAX_ARGS)
1101 args[nb_args++] = (void*)count;
1102 args[nb_args++] = (void*)format;
1103 args[nb_args++] = (void*)size;
1111 if (*typestr == '?') {
1117 if (nb_args >= MAX_ARGS)
1119 args[nb_args++] = (void *)has_arg;
1121 if (nb_args >= MAX_ARGS)
1127 if (get_expr(&val, &p))
1130 if (nb_args >= MAX_ARGS)
1132 args[nb_args++] = (void *)val;
1149 term_printf("%s: unsupported option -%c\n",
1156 if (nb_args >= MAX_ARGS)
1158 args[nb_args++] = (void *)has_option;
1163 term_printf("%s: unknown type '%c'\n", cmdname, c);
1167 /* check that all arguments were parsed */
1171 term_printf("%s: extraneous characters at the end of line\n",
1181 cmd->handler(args[0]);
1184 cmd->handler(args[0], args[1]);
1187 cmd->handler(args[0], args[1], args[2]);
1190 cmd->handler(args[0], args[1], args[2], args[3]);
1193 cmd->handler(args[0], args[1], args[2], args[3], args[4]);
1196 term_printf("unsupported number of arguments: %d\n", nb_args);
1200 for(i = 0; i < MAX_ARGS; i++)
1201 qemu_free(str_allocated[i]);
1205 static void term_show_prompt(void)
1207 term_printf("(qemu) ");
1209 term_cmd_buf_index = 0;
1210 term_cmd_buf_size = 0;
1211 term_esc_state = IS_NORM;
1214 static void term_print_cmdline (const char *cmdline)
1217 term_printf(cmdline);
1221 static void term_insert_char(int ch)
1223 if (term_cmd_buf_index < TERM_CMD_BUF_SIZE) {
1224 memmove(term_cmd_buf + term_cmd_buf_index + 1,
1225 term_cmd_buf + term_cmd_buf_index,
1226 term_cmd_buf_size - term_cmd_buf_index);
1227 term_cmd_buf[term_cmd_buf_index] = ch;
1228 term_cmd_buf_size++;
1229 term_printf("\033[@%c", ch);
1230 term_cmd_buf_index++;
1235 static void term_backward_char(void)
1237 if (term_cmd_buf_index > 0) {
1238 term_cmd_buf_index--;
1239 term_printf("\033[D");
1244 static void term_forward_char(void)
1246 if (term_cmd_buf_index < term_cmd_buf_size) {
1247 term_cmd_buf_index++;
1248 term_printf("\033[C");
1253 static void term_delete_char(void)
1255 if (term_cmd_buf_index < term_cmd_buf_size) {
1256 memmove(term_cmd_buf + term_cmd_buf_index,
1257 term_cmd_buf + term_cmd_buf_index + 1,
1258 term_cmd_buf_size - term_cmd_buf_index - 1);
1259 term_printf("\033[P");
1260 term_cmd_buf_size--;
1265 static void term_backspace(void)
1267 if (term_cmd_buf_index > 0) {
1268 term_backward_char();
1273 static void term_bol(void)
1275 while (term_cmd_buf_index > 0)
1276 term_backward_char();
1279 static void term_eol(void)
1281 while (term_cmd_buf_index < term_cmd_buf_size)
1282 term_forward_char();
1285 static void term_up_char(void)
1289 if (term_hist_entry == 0)
1291 if (term_hist_entry == -1) {
1292 /* Find latest entry */
1293 for (idx = 0; idx < TERM_MAX_CMDS; idx++) {
1294 if (term_history[idx] == NULL)
1297 term_hist_entry = idx;
1300 if (term_hist_entry >= 0) {
1301 strcpy(term_cmd_buf, term_history[term_hist_entry]);
1303 term_print_cmdline(term_cmd_buf);
1304 term_cmd_buf_index = term_cmd_buf_size = strlen(term_cmd_buf);
1308 static void term_down_char(void)
1310 if (term_hist_entry == TERM_MAX_CMDS - 1 || term_hist_entry == -1)
1312 if (term_history[++term_hist_entry] != NULL) {
1313 strcpy(term_cmd_buf, term_history[term_hist_entry]);
1315 term_hist_entry = -1;
1318 term_print_cmdline(term_cmd_buf);
1319 term_cmd_buf_index = term_cmd_buf_size = strlen(term_cmd_buf);
1322 static void term_hist_add(const char *cmdline)
1324 char *hist_entry, *new_entry;
1327 if (cmdline[0] == '\0')
1330 if (term_hist_entry != -1) {
1331 /* We were editing an existing history entry: replace it */
1332 hist_entry = term_history[term_hist_entry];
1333 idx = term_hist_entry;
1334 if (strcmp(hist_entry, cmdline) == 0) {
1338 /* Search cmdline in history buffers */
1339 for (idx = 0; idx < TERM_MAX_CMDS; idx++) {
1340 hist_entry = term_history[idx];
1341 if (hist_entry == NULL)
1343 if (strcmp(hist_entry, cmdline) == 0) {
1345 new_entry = hist_entry;
1346 /* Put this entry at the end of history */
1347 memmove(&term_history[idx], &term_history[idx + 1],
1348 &term_history[TERM_MAX_CMDS] - &term_history[idx + 1]);
1349 term_history[TERM_MAX_CMDS - 1] = NULL;
1350 for (; idx < TERM_MAX_CMDS; idx++) {
1351 if (term_history[idx] == NULL)
1357 if (idx == TERM_MAX_CMDS) {
1358 /* Need to get one free slot */
1359 free(term_history[0]);
1360 memcpy(term_history, &term_history[1],
1361 &term_history[TERM_MAX_CMDS] - &term_history[1]);
1362 term_history[TERM_MAX_CMDS - 1] = NULL;
1363 idx = TERM_MAX_CMDS - 1;
1365 if (new_entry == NULL)
1366 new_entry = strdup(cmdline);
1367 term_history[idx] = new_entry;
1368 term_hist_entry = -1;
1371 /* return true if command handled */
1372 static void term_handle_byte(int ch)
1374 switch(term_esc_state) {
1385 term_cmd_buf[term_cmd_buf_size] = '\0';
1386 term_hist_add(term_cmd_buf);
1388 term_handle_command(term_cmd_buf);
1392 term_esc_state = IS_ESC;
1399 term_esc_state = IS_CSI;
1403 term_insert_char(ch);
1410 term_esc_state = IS_CSI;
1413 term_esc_state = IS_NORM;
1427 term_backward_char();
1430 term_forward_char();
1433 term_esc_param = term_esc_param * 10 + (ch - '0');
1436 switch(term_esc_param) {
1451 term_esc_state = IS_NORM;
1457 /*************************************************************/
1458 /* serial console support */
1460 #define TERM_ESCAPE 0x01 /* ctrl-a is used for escape */
1462 static int term_got_escape, term_command;
1464 void term_print_help(void)
1467 "C-a h print this help\n"
1468 "C-a x exit emulatior\n"
1469 "C-a s save disk data back to file (if -snapshot)\n"
1470 "C-a b send break (magic sysrq)\n"
1471 "C-a c switch between console and monitor\n"
1472 "C-a C-a send C-a\n"
1476 /* called when a char is received */
1477 static void term_received_byte(int ch)
1479 if (!serial_console) {
1480 /* if no serial console, handle every command */
1481 term_handle_byte(ch);
1483 if (term_got_escape) {
1484 term_got_escape = 0;
1495 for (i = 0; i < MAX_DISKS; i++) {
1497 bdrv_commit(bs_table[i]);
1503 serial_receive_break(serial_console);
1506 if (!term_command) {
1516 } else if (ch == TERM_ESCAPE) {
1517 term_got_escape = 1;
1521 term_handle_byte(ch);
1524 serial_receive_byte(serial_console, ch);
1530 static int term_can_read(void *opaque)
1532 if (serial_console) {
1533 return serial_can_receive(serial_console);
1539 static void term_read(void *opaque, const uint8_t *buf, int size)
1542 for(i = 0; i < size; i++)
1543 term_received_byte(buf[i]);
1546 void monitor_init(void)
1548 if (!serial_console) {
1549 term_printf("QEMU %s monitor - type 'help' for more information\n",
1553 term_hist_entry = -1;
1554 qemu_add_fd_read_handler(0, term_can_read, term_read, NULL);