root / monitor.c @ 9307c4c1
History | View | Annotate | Download (31.3 kB)
| 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 |
|
| 27 |
//#define DEBUG
|
| 28 |
|
| 29 |
#ifndef offsetof
|
| 30 |
#define offsetof(type, field) ((size_t) &((type *)0)->field) |
| 31 |
#endif
|
| 32 |
|
| 33 |
#define TERM_CMD_BUF_SIZE 4095 |
| 34 |
|
| 35 |
#define IS_NORM 0 |
| 36 |
#define IS_ESC 1 |
| 37 |
#define IS_CSI 2 |
| 38 |
|
| 39 |
#define printf do_not_use_printf
|
| 40 |
|
| 41 |
static char term_cmd_buf[TERM_CMD_BUF_SIZE + 1]; |
| 42 |
static int term_cmd_buf_index; |
| 43 |
static int term_cmd_buf_size; |
| 44 |
static int term_esc_state; |
| 45 |
static int term_esc_param; |
| 46 |
|
| 47 |
/*
|
| 48 |
* Supported types:
|
| 49 |
*
|
| 50 |
* 'F' filename
|
| 51 |
* 's' string (accept optional quote)
|
| 52 |
* 'i' integer
|
| 53 |
* '/' optional gdb-like print format (like "/10x")
|
| 54 |
*
|
| 55 |
* '?' optional type (for 'F', 's' and 'i')
|
| 56 |
*
|
| 57 |
*/
|
| 58 |
|
| 59 |
typedef struct term_cmd_t { |
| 60 |
const char *name; |
| 61 |
const char *args_type; |
| 62 |
void (*handler)();
|
| 63 |
const char *params; |
| 64 |
const char *help; |
| 65 |
} term_cmd_t; |
| 66 |
|
| 67 |
static term_cmd_t term_cmds[];
|
| 68 |
static term_cmd_t info_cmds[];
|
| 69 |
|
| 70 |
void term_printf(const char *fmt, ...) |
| 71 |
{
|
| 72 |
va_list ap; |
| 73 |
va_start(ap, fmt); |
| 74 |
vprintf(fmt, ap); |
| 75 |
va_end(ap); |
| 76 |
} |
| 77 |
|
| 78 |
void term_flush(void) |
| 79 |
{
|
| 80 |
fflush(stdout); |
| 81 |
} |
| 82 |
|
| 83 |
static int compare_cmd(const char *name, const char *list) |
| 84 |
{
|
| 85 |
const char *p, *pstart; |
| 86 |
int len;
|
| 87 |
len = strlen(name); |
| 88 |
p = list; |
| 89 |
for(;;) {
|
| 90 |
pstart = p; |
| 91 |
p = strchr(p, '|');
|
| 92 |
if (!p)
|
| 93 |
p = pstart + strlen(pstart); |
| 94 |
if ((p - pstart) == len && !memcmp(pstart, name, len))
|
| 95 |
return 1; |
| 96 |
if (*p == '\0') |
| 97 |
break;
|
| 98 |
p++; |
| 99 |
} |
| 100 |
return 0; |
| 101 |
} |
| 102 |
|
| 103 |
static void help_cmd1(term_cmd_t *cmds, const char *prefix, const char *name) |
| 104 |
{
|
| 105 |
term_cmd_t *cmd; |
| 106 |
|
| 107 |
for(cmd = cmds; cmd->name != NULL; cmd++) { |
| 108 |
if (!name || !strcmp(name, cmd->name))
|
| 109 |
term_printf("%s%s %s -- %s\n", prefix, cmd->name, cmd->params, cmd->help);
|
| 110 |
} |
| 111 |
} |
| 112 |
|
| 113 |
static void help_cmd(const char *name) |
| 114 |
{
|
| 115 |
if (name && !strcmp(name, "info")) { |
| 116 |
help_cmd1(info_cmds, "info ", NULL); |
| 117 |
} else {
|
| 118 |
help_cmd1(term_cmds, "", name);
|
| 119 |
if (name && !strcmp(name, "log")) { |
| 120 |
CPULogItem *item; |
| 121 |
term_printf("Log items (comma separated):\n");
|
| 122 |
term_printf("%-10s %s\n", "none", "remove all logs"); |
| 123 |
for(item = cpu_log_items; item->mask != 0; item++) { |
| 124 |
term_printf("%-10s %s\n", item->name, item->help);
|
| 125 |
} |
| 126 |
} |
| 127 |
} |
| 128 |
} |
| 129 |
|
| 130 |
static void do_help(const char *name) |
| 131 |
{
|
| 132 |
help_cmd(name); |
| 133 |
} |
| 134 |
|
| 135 |
static void do_commit(void) |
| 136 |
{
|
| 137 |
int i;
|
| 138 |
|
| 139 |
for (i = 0; i < MAX_DISKS; i++) { |
| 140 |
if (bs_table[i])
|
| 141 |
bdrv_commit(bs_table[i]); |
| 142 |
} |
| 143 |
} |
| 144 |
|
| 145 |
static void do_info(const char *item) |
| 146 |
{
|
| 147 |
term_cmd_t *cmd; |
| 148 |
|
| 149 |
if (!item)
|
| 150 |
goto help;
|
| 151 |
for(cmd = info_cmds; cmd->name != NULL; cmd++) { |
| 152 |
if (compare_cmd(item, cmd->name))
|
| 153 |
goto found;
|
| 154 |
} |
| 155 |
help:
|
| 156 |
help_cmd("info");
|
| 157 |
return;
|
| 158 |
found:
|
| 159 |
cmd->handler(); |
| 160 |
} |
| 161 |
|
| 162 |
static void do_info_network(void) |
| 163 |
{
|
| 164 |
int i, j;
|
| 165 |
NetDriverState *nd; |
| 166 |
|
| 167 |
for(i = 0; i < nb_nics; i++) { |
| 168 |
nd = &nd_table[i]; |
| 169 |
term_printf("%d: ifname=%s macaddr=", i, nd->ifname);
|
| 170 |
for(j = 0; j < 6; j++) { |
| 171 |
if (j > 0) |
| 172 |
term_printf(":");
|
| 173 |
term_printf("%02x", nd->macaddr[j]);
|
| 174 |
} |
| 175 |
term_printf("\n");
|
| 176 |
} |
| 177 |
} |
| 178 |
|
| 179 |
static void do_info_block(void) |
| 180 |
{
|
| 181 |
bdrv_info(); |
| 182 |
} |
| 183 |
|
| 184 |
static void do_info_registers(void) |
| 185 |
{
|
| 186 |
#ifdef TARGET_I386
|
| 187 |
cpu_dump_state(cpu_single_env, stdout, X86_DUMP_FPU | X86_DUMP_CCOP); |
| 188 |
#else
|
| 189 |
cpu_dump_state(cpu_single_env, stdout, 0);
|
| 190 |
#endif
|
| 191 |
} |
| 192 |
|
| 193 |
static void do_quit(void) |
| 194 |
{
|
| 195 |
exit(0);
|
| 196 |
} |
| 197 |
|
| 198 |
static int eject_device(BlockDriverState *bs, int force) |
| 199 |
{
|
| 200 |
if (bdrv_is_inserted(bs)) {
|
| 201 |
if (!force) {
|
| 202 |
if (!bdrv_is_removable(bs)) {
|
| 203 |
term_printf("device is not removable\n");
|
| 204 |
return -1; |
| 205 |
} |
| 206 |
if (bdrv_is_locked(bs)) {
|
| 207 |
term_printf("device is locked\n");
|
| 208 |
return -1; |
| 209 |
} |
| 210 |
} |
| 211 |
bdrv_close(bs); |
| 212 |
} |
| 213 |
return 0; |
| 214 |
} |
| 215 |
|
| 216 |
static void do_eject(int force, const char *filename) |
| 217 |
{
|
| 218 |
BlockDriverState *bs; |
| 219 |
|
| 220 |
term_printf("%d %s\n", force, filename);
|
| 221 |
|
| 222 |
bs = bdrv_find(filename); |
| 223 |
if (!bs) {
|
| 224 |
term_printf("device not found\n");
|
| 225 |
return;
|
| 226 |
} |
| 227 |
eject_device(bs, force); |
| 228 |
} |
| 229 |
|
| 230 |
static void do_change(const char *device, const char *filename) |
| 231 |
{
|
| 232 |
BlockDriverState *bs; |
| 233 |
|
| 234 |
bs = bdrv_find(device); |
| 235 |
if (!bs) {
|
| 236 |
term_printf("device not found\n");
|
| 237 |
return;
|
| 238 |
} |
| 239 |
if (eject_device(bs, 0) < 0) |
| 240 |
return;
|
| 241 |
bdrv_open(bs, filename, 0);
|
| 242 |
} |
| 243 |
|
| 244 |
static void do_screen_dump(const char *filename) |
| 245 |
{
|
| 246 |
vga_screen_dump(filename); |
| 247 |
} |
| 248 |
|
| 249 |
static void do_log(const char *items) |
| 250 |
{
|
| 251 |
int mask;
|
| 252 |
|
| 253 |
if (!strcmp(items, "none")) { |
| 254 |
mask = 0;
|
| 255 |
} else {
|
| 256 |
mask = cpu_str_to_log_mask(items); |
| 257 |
if (!mask) {
|
| 258 |
help_cmd("log");
|
| 259 |
return;
|
| 260 |
} |
| 261 |
} |
| 262 |
cpu_set_log(mask); |
| 263 |
} |
| 264 |
|
| 265 |
static void do_savevm(const char *filename) |
| 266 |
{
|
| 267 |
if (qemu_savevm(filename) < 0) |
| 268 |
term_printf("I/O error when saving VM to '%s'\n", filename);
|
| 269 |
} |
| 270 |
|
| 271 |
static void do_loadvm(const char *filename) |
| 272 |
{
|
| 273 |
if (qemu_loadvm(filename) < 0) |
| 274 |
term_printf("I/O error when loading VM from '%s'\n", filename);
|
| 275 |
} |
| 276 |
|
| 277 |
static void do_stop(void) |
| 278 |
{
|
| 279 |
vm_stop(EXCP_INTERRUPT); |
| 280 |
} |
| 281 |
|
| 282 |
static void do_cont(void) |
| 283 |
{
|
| 284 |
vm_start(); |
| 285 |
} |
| 286 |
|
| 287 |
#ifdef CONFIG_GDBSTUB
|
| 288 |
static void do_gdbserver(int has_port, int port) |
| 289 |
{
|
| 290 |
if (!has_port)
|
| 291 |
port = DEFAULT_GDBSTUB_PORT; |
| 292 |
if (gdbserver_start(port) < 0) { |
| 293 |
qemu_printf("Could not open gdbserver socket on port %d\n", port);
|
| 294 |
} else {
|
| 295 |
qemu_printf("Waiting gdb connection on port %d\n", port);
|
| 296 |
} |
| 297 |
} |
| 298 |
#endif
|
| 299 |
|
| 300 |
static void term_printc(int c) |
| 301 |
{
|
| 302 |
term_printf("'");
|
| 303 |
switch(c) {
|
| 304 |
case '\'': |
| 305 |
term_printf("\\'");
|
| 306 |
break;
|
| 307 |
case '\\': |
| 308 |
term_printf("\\\\");
|
| 309 |
break;
|
| 310 |
case '\n': |
| 311 |
term_printf("\\n");
|
| 312 |
break;
|
| 313 |
case '\r': |
| 314 |
term_printf("\\r");
|
| 315 |
break;
|
| 316 |
default:
|
| 317 |
if (c >= 32 && c <= 126) { |
| 318 |
term_printf("%c", c);
|
| 319 |
} else {
|
| 320 |
term_printf("\\x%02x", c);
|
| 321 |
} |
| 322 |
break;
|
| 323 |
} |
| 324 |
term_printf("'");
|
| 325 |
} |
| 326 |
|
| 327 |
static void memory_dump(int count, int format, int wsize, |
| 328 |
target_ulong addr, int is_physical)
|
| 329 |
{
|
| 330 |
int nb_per_line, l, line_size, i, max_digits, len;
|
| 331 |
uint8_t buf[16];
|
| 332 |
uint64_t v; |
| 333 |
|
| 334 |
if (format == 'i') { |
| 335 |
int flags;
|
| 336 |
flags = 0;
|
| 337 |
#ifdef TARGET_I386
|
| 338 |
/* we use the current CS size */
|
| 339 |
if (!(cpu_single_env->segs[R_CS].flags & DESC_B_MASK))
|
| 340 |
flags = 1;
|
| 341 |
#endif
|
| 342 |
monitor_disas(addr, count, is_physical, flags); |
| 343 |
return;
|
| 344 |
} |
| 345 |
|
| 346 |
len = wsize * count; |
| 347 |
if (wsize == 1) |
| 348 |
line_size = 8;
|
| 349 |
else
|
| 350 |
line_size = 16;
|
| 351 |
nb_per_line = line_size / wsize; |
| 352 |
max_digits = 0;
|
| 353 |
|
| 354 |
switch(format) {
|
| 355 |
case 'o': |
| 356 |
max_digits = (wsize * 8 + 2) / 3; |
| 357 |
break;
|
| 358 |
default:
|
| 359 |
case 'x': |
| 360 |
max_digits = (wsize * 8) / 4; |
| 361 |
break;
|
| 362 |
case 'u': |
| 363 |
case 'd': |
| 364 |
max_digits = (wsize * 8 * 10 + 32) / 33; |
| 365 |
break;
|
| 366 |
case 'c': |
| 367 |
wsize = 1;
|
| 368 |
break;
|
| 369 |
} |
| 370 |
|
| 371 |
while (len > 0) { |
| 372 |
term_printf("0x%08x:", addr);
|
| 373 |
l = len; |
| 374 |
if (l > line_size)
|
| 375 |
l = line_size; |
| 376 |
if (is_physical) {
|
| 377 |
cpu_physical_memory_rw(addr, buf, l, 0);
|
| 378 |
} else {
|
| 379 |
cpu_memory_rw_debug(cpu_single_env, addr, buf, l, 0);
|
| 380 |
} |
| 381 |
i = 0;
|
| 382 |
while (i < l) {
|
| 383 |
switch(wsize) {
|
| 384 |
default:
|
| 385 |
case 1: |
| 386 |
v = ldub_raw(buf + i); |
| 387 |
break;
|
| 388 |
case 2: |
| 389 |
v = lduw_raw(buf + i); |
| 390 |
break;
|
| 391 |
case 4: |
| 392 |
v = ldl_raw(buf + i); |
| 393 |
break;
|
| 394 |
case 8: |
| 395 |
v = ldq_raw(buf + i); |
| 396 |
break;
|
| 397 |
} |
| 398 |
term_printf(" ");
|
| 399 |
switch(format) {
|
| 400 |
case 'o': |
| 401 |
term_printf("%#*llo", max_digits, v);
|
| 402 |
break;
|
| 403 |
case 'x': |
| 404 |
term_printf("0x%0*llx", max_digits, v);
|
| 405 |
break;
|
| 406 |
case 'u': |
| 407 |
term_printf("%*llu", max_digits, v);
|
| 408 |
break;
|
| 409 |
case 'd': |
| 410 |
term_printf("%*lld", max_digits, v);
|
| 411 |
break;
|
| 412 |
case 'c': |
| 413 |
term_printc(v); |
| 414 |
break;
|
| 415 |
} |
| 416 |
i += wsize; |
| 417 |
} |
| 418 |
term_printf("\n");
|
| 419 |
addr += l; |
| 420 |
len -= l; |
| 421 |
} |
| 422 |
} |
| 423 |
|
| 424 |
static void do_memory_dump(int count, int format, int size, int addr) |
| 425 |
{
|
| 426 |
memory_dump(count, format, size, addr, 0);
|
| 427 |
} |
| 428 |
|
| 429 |
static void do_physical_memory_dump(int count, int format, int size, int addr) |
| 430 |
{
|
| 431 |
memory_dump(count, format, size, addr, 1);
|
| 432 |
} |
| 433 |
|
| 434 |
static void do_print(int count, int format, int size, int val) |
| 435 |
{
|
| 436 |
switch(format) {
|
| 437 |
case 'o': |
| 438 |
term_printf("%#o", val);
|
| 439 |
break;
|
| 440 |
case 'x': |
| 441 |
term_printf("%#x", val);
|
| 442 |
break;
|
| 443 |
case 'u': |
| 444 |
term_printf("%u", val);
|
| 445 |
break;
|
| 446 |
default:
|
| 447 |
case 'd': |
| 448 |
term_printf("%d", val);
|
| 449 |
break;
|
| 450 |
case 'c': |
| 451 |
term_printc(val); |
| 452 |
break;
|
| 453 |
} |
| 454 |
term_printf("\n");
|
| 455 |
} |
| 456 |
|
| 457 |
static term_cmd_t term_cmds[] = {
|
| 458 |
{ "help|?", "s?", do_help,
|
| 459 |
"[cmd]", "show the help" }, |
| 460 |
{ "commit", "", do_commit,
|
| 461 |
"", "commit changes to the disk images (if -snapshot is used)" }, |
| 462 |
{ "info", "s?", do_info,
|
| 463 |
"subcommand", "show various information about the system state" }, |
| 464 |
{ "q|quit", "", do_quit,
|
| 465 |
"", "quit the emulator" }, |
| 466 |
{ "eject", "-fs", do_eject,
|
| 467 |
"[-f] device", "eject a removable media (use -f to force it)" }, |
| 468 |
{ "change", "sF", do_change,
|
| 469 |
"device filename", "change a removable media" }, |
| 470 |
{ "screendump", "F", do_screen_dump,
|
| 471 |
"filename", "save screen into PPM image 'filename'" }, |
| 472 |
{ "log", "s", do_log,
|
| 473 |
"item1[,...]", "activate logging of the specified items to '/tmp/qemu.log'" }, |
| 474 |
{ "savevm", "F", do_savevm,
|
| 475 |
"filename", "save the whole virtual machine state to 'filename'" }, |
| 476 |
{ "loadvm", "F", do_loadvm,
|
| 477 |
"filename", "restore the whole virtual machine state from 'filename'" }, |
| 478 |
{ "stop", "", do_stop,
|
| 479 |
"", "stop emulation", }, |
| 480 |
{ "c|cont", "", do_cont,
|
| 481 |
"", "resume emulation", }, |
| 482 |
#ifdef CONFIG_GDBSTUB
|
| 483 |
{ "gdbserver", "i?", do_gdbserver,
|
| 484 |
"[port]", "start gdbserver session (default port=1234)", }, |
| 485 |
#endif
|
| 486 |
{ "x", "/i", do_memory_dump,
|
| 487 |
"/fmt addr", "virtual memory dump starting at 'addr'", }, |
| 488 |
{ "xp", "/i", do_physical_memory_dump,
|
| 489 |
"/fmt addr", "physical memory dump starting at 'addr'", }, |
| 490 |
{ "p|print", "/i", do_print,
|
| 491 |
"/fmt expr", "print expression value (use $reg for CPU register access)", }, |
| 492 |
{ NULL, NULL, },
|
| 493 |
}; |
| 494 |
|
| 495 |
static term_cmd_t info_cmds[] = {
|
| 496 |
{ "network", "", do_info_network,
|
| 497 |
"", "show the network state" }, |
| 498 |
{ "block", "", do_info_block,
|
| 499 |
"", "show the block devices" }, |
| 500 |
{ "registers", "", do_info_registers,
|
| 501 |
"", "show the cpu registers" }, |
| 502 |
{ NULL, NULL, },
|
| 503 |
}; |
| 504 |
|
| 505 |
/*******************************************************************/
|
| 506 |
|
| 507 |
static const char *pch; |
| 508 |
static jmp_buf expr_env;
|
| 509 |
|
| 510 |
typedef struct MonitorDef { |
| 511 |
const char *name; |
| 512 |
int offset;
|
| 513 |
int (*get_value)(struct MonitorDef *md); |
| 514 |
} MonitorDef; |
| 515 |
|
| 516 |
static MonitorDef monitor_defs[] = {
|
| 517 |
#ifdef TARGET_I386
|
| 518 |
{ "eax", offsetof(CPUState, regs[0]) },
|
| 519 |
{ "ecx", offsetof(CPUState, regs[1]) },
|
| 520 |
{ "edx", offsetof(CPUState, regs[2]) },
|
| 521 |
{ "ebx", offsetof(CPUState, regs[3]) },
|
| 522 |
{ "esp|sp", offsetof(CPUState, regs[4]) },
|
| 523 |
{ "ebp|fp", offsetof(CPUState, regs[5]) },
|
| 524 |
{ "esi", offsetof(CPUState, regs[6]) },
|
| 525 |
{ "esi", offsetof(CPUState, regs[7]) },
|
| 526 |
{ "eflags", offsetof(CPUState, eflags) },
|
| 527 |
{ "eip|pc", offsetof(CPUState, eip) },
|
| 528 |
#endif
|
| 529 |
{ NULL },
|
| 530 |
}; |
| 531 |
|
| 532 |
static void expr_error(const char *fmt) |
| 533 |
{
|
| 534 |
term_printf(fmt); |
| 535 |
term_printf("\n");
|
| 536 |
longjmp(expr_env, 1);
|
| 537 |
} |
| 538 |
|
| 539 |
static int get_monitor_def(int *pval, const char *name) |
| 540 |
{
|
| 541 |
MonitorDef *md; |
| 542 |
for(md = monitor_defs; md->name != NULL; md++) { |
| 543 |
if (compare_cmd(name, md->name)) {
|
| 544 |
if (md->get_value) {
|
| 545 |
*pval = md->get_value(md); |
| 546 |
} else {
|
| 547 |
*pval = *(uint32_t *)((uint8_t *)cpu_single_env + md->offset); |
| 548 |
} |
| 549 |
return 0; |
| 550 |
} |
| 551 |
} |
| 552 |
return -1; |
| 553 |
} |
| 554 |
|
| 555 |
static void next(void) |
| 556 |
{
|
| 557 |
if (pch != '\0') { |
| 558 |
pch++; |
| 559 |
while (isspace(*pch))
|
| 560 |
pch++; |
| 561 |
} |
| 562 |
} |
| 563 |
|
| 564 |
static int expr_sum(void); |
| 565 |
|
| 566 |
static int expr_unary(void) |
| 567 |
{
|
| 568 |
int n;
|
| 569 |
char *p;
|
| 570 |
|
| 571 |
switch(*pch) {
|
| 572 |
case '+': |
| 573 |
next(); |
| 574 |
n = expr_unary(); |
| 575 |
break;
|
| 576 |
case '-': |
| 577 |
next(); |
| 578 |
n = -expr_unary(); |
| 579 |
break;
|
| 580 |
case '~': |
| 581 |
next(); |
| 582 |
n = ~expr_unary(); |
| 583 |
break;
|
| 584 |
case '(': |
| 585 |
next(); |
| 586 |
n = expr_sum(); |
| 587 |
if (*pch != ')') { |
| 588 |
expr_error("')' expected");
|
| 589 |
} |
| 590 |
next(); |
| 591 |
break;
|
| 592 |
case '$': |
| 593 |
{
|
| 594 |
char buf[128], *q; |
| 595 |
|
| 596 |
pch++; |
| 597 |
q = buf; |
| 598 |
while ((*pch >= 'a' && *pch <= 'z') || |
| 599 |
(*pch >= 'A' && *pch <= 'Z') || |
| 600 |
(*pch >= '0' && *pch <= '9') || |
| 601 |
*pch == '_') {
|
| 602 |
if ((q - buf) < sizeof(buf) - 1) |
| 603 |
*q++ = *pch; |
| 604 |
pch++; |
| 605 |
} |
| 606 |
while (isspace(*pch))
|
| 607 |
pch++; |
| 608 |
*q = 0;
|
| 609 |
if (get_monitor_def(&n, buf))
|
| 610 |
expr_error("unknown register");
|
| 611 |
} |
| 612 |
break;
|
| 613 |
case '\0': |
| 614 |
expr_error("unexpected end of expression");
|
| 615 |
n = 0;
|
| 616 |
break;
|
| 617 |
default:
|
| 618 |
n = strtoul(pch, &p, 0);
|
| 619 |
if (pch == p) {
|
| 620 |
expr_error("invalid char in expression");
|
| 621 |
} |
| 622 |
pch = p; |
| 623 |
while (isspace(*pch))
|
| 624 |
pch++; |
| 625 |
break;
|
| 626 |
} |
| 627 |
return n;
|
| 628 |
} |
| 629 |
|
| 630 |
|
| 631 |
static int expr_prod(void) |
| 632 |
{
|
| 633 |
int val, val2, op;
|
| 634 |
|
| 635 |
val = expr_unary(); |
| 636 |
for(;;) {
|
| 637 |
op = *pch; |
| 638 |
if (op != '*' && op != '/' && op != '%') |
| 639 |
break;
|
| 640 |
next(); |
| 641 |
val2 = expr_unary(); |
| 642 |
switch(op) {
|
| 643 |
default:
|
| 644 |
case '*': |
| 645 |
val *= val2; |
| 646 |
break;
|
| 647 |
case '/': |
| 648 |
case '%': |
| 649 |
if (val2 == 0) |
| 650 |
expr_error("divison by zero");
|
| 651 |
if (op == '/') |
| 652 |
val /= val2; |
| 653 |
else
|
| 654 |
val %= val2; |
| 655 |
break;
|
| 656 |
} |
| 657 |
} |
| 658 |
return val;
|
| 659 |
} |
| 660 |
|
| 661 |
static int expr_logic(void) |
| 662 |
{
|
| 663 |
int val, val2, op;
|
| 664 |
|
| 665 |
val = expr_prod(); |
| 666 |
for(;;) {
|
| 667 |
op = *pch; |
| 668 |
if (op != '&' && op != '|' && op != '^') |
| 669 |
break;
|
| 670 |
next(); |
| 671 |
val2 = expr_prod(); |
| 672 |
switch(op) {
|
| 673 |
default:
|
| 674 |
case '&': |
| 675 |
val &= val2; |
| 676 |
break;
|
| 677 |
case '|': |
| 678 |
val |= val2; |
| 679 |
break;
|
| 680 |
case '^': |
| 681 |
val ^= val2; |
| 682 |
break;
|
| 683 |
} |
| 684 |
} |
| 685 |
return val;
|
| 686 |
} |
| 687 |
|
| 688 |
static int expr_sum(void) |
| 689 |
{
|
| 690 |
int val, val2, op;
|
| 691 |
|
| 692 |
val = expr_logic(); |
| 693 |
for(;;) {
|
| 694 |
op = *pch; |
| 695 |
if (op != '+' && op != '-') |
| 696 |
break;
|
| 697 |
next(); |
| 698 |
val2 = expr_logic(); |
| 699 |
if (op == '+') |
| 700 |
val += val2; |
| 701 |
else
|
| 702 |
val -= val2; |
| 703 |
} |
| 704 |
return val;
|
| 705 |
} |
| 706 |
|
| 707 |
static int get_expr(int *pval, const char **pp) |
| 708 |
{
|
| 709 |
pch = *pp; |
| 710 |
if (setjmp(expr_env)) {
|
| 711 |
*pp = pch; |
| 712 |
return -1; |
| 713 |
} |
| 714 |
while (isspace(*pch))
|
| 715 |
pch++; |
| 716 |
*pval = expr_sum(); |
| 717 |
*pp = pch; |
| 718 |
return 0; |
| 719 |
} |
| 720 |
|
| 721 |
static int get_str(char *buf, int buf_size, const char **pp) |
| 722 |
{
|
| 723 |
const char *p; |
| 724 |
char *q;
|
| 725 |
int c;
|
| 726 |
|
| 727 |
p = *pp; |
| 728 |
while (isspace(*p))
|
| 729 |
p++; |
| 730 |
if (*p == '\0') { |
| 731 |
fail:
|
| 732 |
*pp = p; |
| 733 |
return -1; |
| 734 |
} |
| 735 |
q = buf; |
| 736 |
if (*p == '\"') { |
| 737 |
p++; |
| 738 |
while (*p != '\0' && *p != '\"') { |
| 739 |
if (*p == '\\') { |
| 740 |
p++; |
| 741 |
c = *p++; |
| 742 |
switch(c) {
|
| 743 |
case 'n': |
| 744 |
c = '\n';
|
| 745 |
break;
|
| 746 |
case 'r': |
| 747 |
c = '\r';
|
| 748 |
break;
|
| 749 |
case '\\': |
| 750 |
case '\'': |
| 751 |
case '\"': |
| 752 |
break;
|
| 753 |
default:
|
| 754 |
qemu_printf("unsupported escape code: '\\%c'\n", c);
|
| 755 |
goto fail;
|
| 756 |
} |
| 757 |
if ((q - buf) < buf_size - 1) { |
| 758 |
*q++ = c; |
| 759 |
} |
| 760 |
} else {
|
| 761 |
if ((q - buf) < buf_size - 1) { |
| 762 |
*q++ = *p; |
| 763 |
} |
| 764 |
p++; |
| 765 |
} |
| 766 |
} |
| 767 |
if (*p != '\"') { |
| 768 |
qemu_printf("untermintated string\n");
|
| 769 |
goto fail;
|
| 770 |
} |
| 771 |
p++; |
| 772 |
} else {
|
| 773 |
while (*p != '\0' && !isspace(*p)) { |
| 774 |
if ((q - buf) < buf_size - 1) { |
| 775 |
*q++ = *p; |
| 776 |
} |
| 777 |
p++; |
| 778 |
} |
| 779 |
*q = '\0';
|
| 780 |
} |
| 781 |
*pp = p; |
| 782 |
return 0; |
| 783 |
} |
| 784 |
|
| 785 |
static int default_fmt_format = 'x'; |
| 786 |
static int default_fmt_size = 4; |
| 787 |
|
| 788 |
#define MAX_ARGS 16 |
| 789 |
|
| 790 |
static void term_handle_command(const char *cmdline) |
| 791 |
{
|
| 792 |
const char *p, *pstart, *typestr; |
| 793 |
char *q;
|
| 794 |
int c, nb_args, len, i, has_arg;
|
| 795 |
term_cmd_t *cmd; |
| 796 |
char cmdname[256]; |
| 797 |
char buf[1024]; |
| 798 |
void *str_allocated[MAX_ARGS];
|
| 799 |
void *args[MAX_ARGS];
|
| 800 |
|
| 801 |
#ifdef DEBUG
|
| 802 |
term_printf("command='%s'\n", cmdline);
|
| 803 |
#endif
|
| 804 |
|
| 805 |
/* extract the command name */
|
| 806 |
p = cmdline; |
| 807 |
q = cmdname; |
| 808 |
while (isspace(*p))
|
| 809 |
p++; |
| 810 |
if (*p == '\0') |
| 811 |
return;
|
| 812 |
pstart = p; |
| 813 |
while (*p != '\0' && *p != '/' && !isspace(*p)) |
| 814 |
p++; |
| 815 |
len = p - pstart; |
| 816 |
if (len > sizeof(cmdname) - 1) |
| 817 |
len = sizeof(cmdname) - 1; |
| 818 |
memcpy(cmdname, pstart, len); |
| 819 |
cmdname[len] = '\0';
|
| 820 |
|
| 821 |
/* find the command */
|
| 822 |
for(cmd = term_cmds; cmd->name != NULL; cmd++) { |
| 823 |
if (compare_cmd(cmdname, cmd->name))
|
| 824 |
goto found;
|
| 825 |
} |
| 826 |
term_printf("unknown command: '%s'\n", cmdname);
|
| 827 |
return;
|
| 828 |
found:
|
| 829 |
|
| 830 |
for(i = 0; i < MAX_ARGS; i++) |
| 831 |
str_allocated[i] = NULL;
|
| 832 |
|
| 833 |
/* parse the parameters */
|
| 834 |
typestr = cmd->args_type; |
| 835 |
nb_args = 0;
|
| 836 |
for(;;) {
|
| 837 |
c = *typestr; |
| 838 |
if (c == '\0') |
| 839 |
break;
|
| 840 |
typestr++; |
| 841 |
switch(c) {
|
| 842 |
case 'F': |
| 843 |
case 's': |
| 844 |
{
|
| 845 |
int ret;
|
| 846 |
char *str;
|
| 847 |
|
| 848 |
while (isspace(*p))
|
| 849 |
p++; |
| 850 |
if (*typestr == '?') { |
| 851 |
typestr++; |
| 852 |
if (*p == '\0') { |
| 853 |
/* no optional string: NULL argument */
|
| 854 |
str = NULL;
|
| 855 |
goto add_str;
|
| 856 |
} |
| 857 |
} |
| 858 |
ret = get_str(buf, sizeof(buf), &p);
|
| 859 |
if (ret < 0) { |
| 860 |
if (c == 'F') |
| 861 |
term_printf("%s: filename expected\n", cmdname);
|
| 862 |
else
|
| 863 |
term_printf("%s: string expected\n", cmdname);
|
| 864 |
goto fail;
|
| 865 |
} |
| 866 |
str = qemu_malloc(strlen(buf) + 1);
|
| 867 |
strcpy(str, buf); |
| 868 |
str_allocated[nb_args] = str; |
| 869 |
add_str:
|
| 870 |
if (nb_args >= MAX_ARGS) {
|
| 871 |
error_args:
|
| 872 |
term_printf("%s: too many arguments\n", cmdname);
|
| 873 |
goto fail;
|
| 874 |
} |
| 875 |
args[nb_args++] = str; |
| 876 |
} |
| 877 |
break;
|
| 878 |
case '/': |
| 879 |
{
|
| 880 |
int count, format, size;
|
| 881 |
|
| 882 |
while (isspace(*p))
|
| 883 |
p++; |
| 884 |
if (*p == '/') { |
| 885 |
/* format found */
|
| 886 |
p++; |
| 887 |
count = 1;
|
| 888 |
if (isdigit(*p)) {
|
| 889 |
count = 0;
|
| 890 |
while (isdigit(*p)) {
|
| 891 |
count = count * 10 + (*p - '0'); |
| 892 |
p++; |
| 893 |
} |
| 894 |
} |
| 895 |
size = -1;
|
| 896 |
format = -1;
|
| 897 |
for(;;) {
|
| 898 |
switch(*p) {
|
| 899 |
case 'o': |
| 900 |
case 'd': |
| 901 |
case 'u': |
| 902 |
case 'x': |
| 903 |
case 'i': |
| 904 |
case 'c': |
| 905 |
format = *p++; |
| 906 |
break;
|
| 907 |
case 'b': |
| 908 |
size = 1;
|
| 909 |
p++; |
| 910 |
break;
|
| 911 |
case 'h': |
| 912 |
size = 2;
|
| 913 |
p++; |
| 914 |
break;
|
| 915 |
case 'w': |
| 916 |
size = 4;
|
| 917 |
p++; |
| 918 |
break;
|
| 919 |
case 'g': |
| 920 |
case 'L': |
| 921 |
size = 8;
|
| 922 |
p++; |
| 923 |
break;
|
| 924 |
default:
|
| 925 |
goto next;
|
| 926 |
} |
| 927 |
} |
| 928 |
next:
|
| 929 |
if (*p != '\0' && !isspace(*p)) { |
| 930 |
term_printf("invalid char in format: '%c'\n", *p);
|
| 931 |
goto fail;
|
| 932 |
} |
| 933 |
if (size < 0) |
| 934 |
size = default_fmt_size; |
| 935 |
if (format < 0) |
| 936 |
format = default_fmt_format; |
| 937 |
default_fmt_size = size; |
| 938 |
default_fmt_format = format; |
| 939 |
} else {
|
| 940 |
count = 1;
|
| 941 |
format = default_fmt_format; |
| 942 |
size = default_fmt_size; |
| 943 |
} |
| 944 |
if (nb_args + 3 > MAX_ARGS) |
| 945 |
goto error_args;
|
| 946 |
args[nb_args++] = (void*)count;
|
| 947 |
args[nb_args++] = (void*)format;
|
| 948 |
args[nb_args++] = (void*)size;
|
| 949 |
} |
| 950 |
break;
|
| 951 |
case 'i': |
| 952 |
{
|
| 953 |
int val;
|
| 954 |
while (isspace(*p))
|
| 955 |
p++; |
| 956 |
if (*typestr == '?') { |
| 957 |
typestr++; |
| 958 |
if (*p == '\0') |
| 959 |
has_arg = 0;
|
| 960 |
else
|
| 961 |
has_arg = 1;
|
| 962 |
if (nb_args >= MAX_ARGS)
|
| 963 |
goto error_args;
|
| 964 |
args[nb_args++] = (void *)has_arg;
|
| 965 |
if (!has_arg) {
|
| 966 |
if (nb_args >= MAX_ARGS)
|
| 967 |
goto error_args;
|
| 968 |
val = -1;
|
| 969 |
goto add_num;
|
| 970 |
} |
| 971 |
} |
| 972 |
if (get_expr(&val, &p))
|
| 973 |
goto fail;
|
| 974 |
add_num:
|
| 975 |
if (nb_args >= MAX_ARGS)
|
| 976 |
goto error_args;
|
| 977 |
args[nb_args++] = (void *)val;
|
| 978 |
} |
| 979 |
break;
|
| 980 |
case '-': |
| 981 |
{
|
| 982 |
int has_option;
|
| 983 |
/* option */
|
| 984 |
|
| 985 |
c = *typestr++; |
| 986 |
if (c == '\0') |
| 987 |
goto bad_type;
|
| 988 |
while (isspace(*p))
|
| 989 |
p++; |
| 990 |
has_option = 0;
|
| 991 |
if (*p == '-') { |
| 992 |
p++; |
| 993 |
if (*p != c) {
|
| 994 |
term_printf("%s: unsupported option -%c\n",
|
| 995 |
cmdname, *p); |
| 996 |
goto fail;
|
| 997 |
} |
| 998 |
p++; |
| 999 |
has_option = 1;
|
| 1000 |
} |
| 1001 |
if (nb_args >= MAX_ARGS)
|
| 1002 |
goto error_args;
|
| 1003 |
args[nb_args++] = (void *)has_option;
|
| 1004 |
} |
| 1005 |
break;
|
| 1006 |
default:
|
| 1007 |
bad_type:
|
| 1008 |
term_printf("%s: unknown type '%c'\n", cmdname, c);
|
| 1009 |
goto fail;
|
| 1010 |
} |
| 1011 |
} |
| 1012 |
/* check that all arguments were parsed */
|
| 1013 |
while (isspace(*p))
|
| 1014 |
p++; |
| 1015 |
if (*p != '\0') { |
| 1016 |
term_printf("%s: extraneous characters at the end of line\n",
|
| 1017 |
cmdname); |
| 1018 |
goto fail;
|
| 1019 |
} |
| 1020 |
|
| 1021 |
switch(nb_args) {
|
| 1022 |
case 0: |
| 1023 |
cmd->handler(); |
| 1024 |
break;
|
| 1025 |
case 1: |
| 1026 |
cmd->handler(args[0]);
|
| 1027 |
break;
|
| 1028 |
case 2: |
| 1029 |
cmd->handler(args[0], args[1]); |
| 1030 |
break;
|
| 1031 |
case 3: |
| 1032 |
cmd->handler(args[0], args[1], args[2]); |
| 1033 |
break;
|
| 1034 |
case 4: |
| 1035 |
cmd->handler(args[0], args[1], args[2], args[3]); |
| 1036 |
break;
|
| 1037 |
case 5: |
| 1038 |
cmd->handler(args[0], args[1], args[2], args[3], args[4]); |
| 1039 |
break;
|
| 1040 |
default:
|
| 1041 |
term_printf("unsupported number of arguments: %d\n", nb_args);
|
| 1042 |
goto fail;
|
| 1043 |
} |
| 1044 |
fail:
|
| 1045 |
for(i = 0; i < MAX_ARGS; i++) |
| 1046 |
qemu_free(str_allocated[i]); |
| 1047 |
return;
|
| 1048 |
} |
| 1049 |
|
| 1050 |
static void term_show_prompt(void) |
| 1051 |
{
|
| 1052 |
term_printf("(qemu) ");
|
| 1053 |
fflush(stdout); |
| 1054 |
term_cmd_buf_index = 0;
|
| 1055 |
term_cmd_buf_size = 0;
|
| 1056 |
term_esc_state = IS_NORM; |
| 1057 |
} |
| 1058 |
|
| 1059 |
static void term_insert_char(int ch) |
| 1060 |
{
|
| 1061 |
if (term_cmd_buf_index < TERM_CMD_BUF_SIZE) {
|
| 1062 |
memmove(term_cmd_buf + term_cmd_buf_index + 1,
|
| 1063 |
term_cmd_buf + term_cmd_buf_index, |
| 1064 |
term_cmd_buf_size - term_cmd_buf_index); |
| 1065 |
term_cmd_buf[term_cmd_buf_index] = ch; |
| 1066 |
term_cmd_buf_size++; |
| 1067 |
term_printf("\033[@%c", ch);
|
| 1068 |
term_cmd_buf_index++; |
| 1069 |
term_flush(); |
| 1070 |
} |
| 1071 |
} |
| 1072 |
|
| 1073 |
static void term_backward_char(void) |
| 1074 |
{
|
| 1075 |
if (term_cmd_buf_index > 0) { |
| 1076 |
term_cmd_buf_index--; |
| 1077 |
term_printf("\033[D");
|
| 1078 |
term_flush(); |
| 1079 |
} |
| 1080 |
} |
| 1081 |
|
| 1082 |
static void term_forward_char(void) |
| 1083 |
{
|
| 1084 |
if (term_cmd_buf_index < term_cmd_buf_size) {
|
| 1085 |
term_cmd_buf_index++; |
| 1086 |
term_printf("\033[C");
|
| 1087 |
term_flush(); |
| 1088 |
} |
| 1089 |
} |
| 1090 |
|
| 1091 |
static void term_delete_char(void) |
| 1092 |
{
|
| 1093 |
if (term_cmd_buf_index < term_cmd_buf_size) {
|
| 1094 |
memmove(term_cmd_buf + term_cmd_buf_index, |
| 1095 |
term_cmd_buf + term_cmd_buf_index + 1,
|
| 1096 |
term_cmd_buf_size - term_cmd_buf_index - 1);
|
| 1097 |
term_printf("\033[P");
|
| 1098 |
term_cmd_buf_size--; |
| 1099 |
term_flush(); |
| 1100 |
} |
| 1101 |
} |
| 1102 |
|
| 1103 |
static void term_backspace(void) |
| 1104 |
{
|
| 1105 |
if (term_cmd_buf_index > 0) { |
| 1106 |
term_backward_char(); |
| 1107 |
term_delete_char(); |
| 1108 |
} |
| 1109 |
} |
| 1110 |
|
| 1111 |
static void term_bol(void) |
| 1112 |
{
|
| 1113 |
while (term_cmd_buf_index > 0) |
| 1114 |
term_backward_char(); |
| 1115 |
} |
| 1116 |
|
| 1117 |
static void term_eol(void) |
| 1118 |
{
|
| 1119 |
while (term_cmd_buf_index < term_cmd_buf_size)
|
| 1120 |
term_forward_char(); |
| 1121 |
} |
| 1122 |
|
| 1123 |
/* return true if command handled */
|
| 1124 |
static void term_handle_byte(int ch) |
| 1125 |
{
|
| 1126 |
switch(term_esc_state) {
|
| 1127 |
case IS_NORM:
|
| 1128 |
switch(ch) {
|
| 1129 |
case 1: |
| 1130 |
term_bol(); |
| 1131 |
break;
|
| 1132 |
case 5: |
| 1133 |
term_eol(); |
| 1134 |
break;
|
| 1135 |
case 10: |
| 1136 |
case 13: |
| 1137 |
term_cmd_buf[term_cmd_buf_size] = '\0';
|
| 1138 |
term_printf("\n");
|
| 1139 |
term_handle_command(term_cmd_buf); |
| 1140 |
term_show_prompt(); |
| 1141 |
break;
|
| 1142 |
case 27: |
| 1143 |
term_esc_state = IS_ESC; |
| 1144 |
break;
|
| 1145 |
case 127: |
| 1146 |
case 8: |
| 1147 |
term_backspace(); |
| 1148 |
break;
|
| 1149 |
default:
|
| 1150 |
if (ch >= 32) { |
| 1151 |
term_insert_char(ch); |
| 1152 |
} |
| 1153 |
break;
|
| 1154 |
} |
| 1155 |
break;
|
| 1156 |
case IS_ESC:
|
| 1157 |
if (ch == '[') { |
| 1158 |
term_esc_state = IS_CSI; |
| 1159 |
term_esc_param = 0;
|
| 1160 |
} else {
|
| 1161 |
term_esc_state = IS_NORM; |
| 1162 |
} |
| 1163 |
break;
|
| 1164 |
case IS_CSI:
|
| 1165 |
switch(ch) {
|
| 1166 |
case 'D': |
| 1167 |
term_backward_char(); |
| 1168 |
break;
|
| 1169 |
case 'C': |
| 1170 |
term_forward_char(); |
| 1171 |
break;
|
| 1172 |
case '0' ... '9': |
| 1173 |
term_esc_param = term_esc_param * 10 + (ch - '0'); |
| 1174 |
goto the_end;
|
| 1175 |
case '~': |
| 1176 |
switch(term_esc_param) {
|
| 1177 |
case 1: |
| 1178 |
term_bol(); |
| 1179 |
break;
|
| 1180 |
case 3: |
| 1181 |
term_delete_char(); |
| 1182 |
break;
|
| 1183 |
case 4: |
| 1184 |
term_eol(); |
| 1185 |
break;
|
| 1186 |
} |
| 1187 |
break;
|
| 1188 |
default:
|
| 1189 |
break;
|
| 1190 |
} |
| 1191 |
term_esc_state = IS_NORM; |
| 1192 |
the_end:
|
| 1193 |
break;
|
| 1194 |
} |
| 1195 |
} |
| 1196 |
|
| 1197 |
/*************************************************************/
|
| 1198 |
/* serial console support */
|
| 1199 |
|
| 1200 |
#define TERM_ESCAPE 0x01 /* ctrl-a is used for escape */ |
| 1201 |
|
| 1202 |
static int term_got_escape, term_command; |
| 1203 |
|
| 1204 |
void term_print_help(void) |
| 1205 |
{
|
| 1206 |
term_printf("\n"
|
| 1207 |
"C-a h print this help\n"
|
| 1208 |
"C-a x exit emulatior\n"
|
| 1209 |
"C-a s save disk data back to file (if -snapshot)\n"
|
| 1210 |
"C-a b send break (magic sysrq)\n"
|
| 1211 |
"C-a c switch between console and monitor\n"
|
| 1212 |
"C-a C-a send C-a\n"
|
| 1213 |
); |
| 1214 |
} |
| 1215 |
|
| 1216 |
/* called when a char is received */
|
| 1217 |
static void term_received_byte(int ch) |
| 1218 |
{
|
| 1219 |
if (!serial_console) {
|
| 1220 |
/* if no serial console, handle every command */
|
| 1221 |
term_handle_byte(ch); |
| 1222 |
} else {
|
| 1223 |
if (term_got_escape) {
|
| 1224 |
term_got_escape = 0;
|
| 1225 |
switch(ch) {
|
| 1226 |
case 'h': |
| 1227 |
term_print_help(); |
| 1228 |
break;
|
| 1229 |
case 'x': |
| 1230 |
exit(0);
|
| 1231 |
break;
|
| 1232 |
case 's': |
| 1233 |
{
|
| 1234 |
int i;
|
| 1235 |
for (i = 0; i < MAX_DISKS; i++) { |
| 1236 |
if (bs_table[i])
|
| 1237 |
bdrv_commit(bs_table[i]); |
| 1238 |
} |
| 1239 |
} |
| 1240 |
break;
|
| 1241 |
case 'b': |
| 1242 |
if (serial_console)
|
| 1243 |
serial_receive_break(serial_console); |
| 1244 |
break;
|
| 1245 |
case 'c': |
| 1246 |
if (!term_command) {
|
| 1247 |
term_show_prompt(); |
| 1248 |
term_command = 1;
|
| 1249 |
} else {
|
| 1250 |
term_command = 0;
|
| 1251 |
} |
| 1252 |
break;
|
| 1253 |
case TERM_ESCAPE:
|
| 1254 |
goto send_char;
|
| 1255 |
} |
| 1256 |
} else if (ch == TERM_ESCAPE) { |
| 1257 |
term_got_escape = 1;
|
| 1258 |
} else {
|
| 1259 |
send_char:
|
| 1260 |
if (term_command) {
|
| 1261 |
term_handle_byte(ch); |
| 1262 |
} else {
|
| 1263 |
if (serial_console)
|
| 1264 |
serial_receive_byte(serial_console, ch); |
| 1265 |
} |
| 1266 |
} |
| 1267 |
} |
| 1268 |
} |
| 1269 |
|
| 1270 |
static int term_can_read(void *opaque) |
| 1271 |
{
|
| 1272 |
if (serial_console) {
|
| 1273 |
return serial_can_receive(serial_console);
|
| 1274 |
} else {
|
| 1275 |
return 128; |
| 1276 |
} |
| 1277 |
} |
| 1278 |
|
| 1279 |
static void term_read(void *opaque, const uint8_t *buf, int size) |
| 1280 |
{
|
| 1281 |
int i;
|
| 1282 |
for(i = 0; i < size; i++) |
| 1283 |
term_received_byte(buf[i]); |
| 1284 |
} |
| 1285 |
|
| 1286 |
void monitor_init(void) |
| 1287 |
{
|
| 1288 |
if (!serial_console) {
|
| 1289 |
term_printf("QEMU %s monitor - type 'help' for more information\n",
|
| 1290 |
QEMU_VERSION); |
| 1291 |
term_show_prompt(); |
| 1292 |
} |
| 1293 |
qemu_add_fd_read_handler(0, term_can_read, term_read, NULL); |
| 1294 |
} |