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/*
|
|---|---|
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* QEMU monitor
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*
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* Copyright (c) 2003-2004 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
|
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
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* THE SOFTWARE.
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*/
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#include "vl.h" |
| 25 |
#include "disas.h" |
| 26 |
|
| 27 |
//#define DEBUG
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|
| 29 |
#ifndef offsetof
|
| 30 |
#define offsetof(type, field) ((size_t) &((type *)0)->field) |
| 31 |
#endif
|
| 32 |
|
| 33 |
#define TERM_CMD_BUF_SIZE 4095 |
| 34 |
#define TERM_MAX_CMDS 64 |
| 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 |
|
| 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; |
| 47 |
|
| 48 |
static char *term_history[TERM_MAX_CMDS]; |
| 49 |
static int term_hist_entry; |
| 50 |
|
| 51 |
/*
|
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* Supported types:
|
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*
|
| 54 |
* 'F' filename
|
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* 's' string (accept optional quote)
|
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* 'i' integer
|
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* '/' optional gdb-like print format (like "/10x")
|
| 58 |
*
|
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* '?' optional type (for 'F', 's' and 'i')
|
| 60 |
*
|
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*/
|
| 62 |
|
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typedef struct term_cmd_t { |
| 64 |
const char *name; |
| 65 |
const char *args_type; |
| 66 |
void (*handler)();
|
| 67 |
const char *params; |
| 68 |
const char *help; |
| 69 |
} term_cmd_t; |
| 70 |
|
| 71 |
static term_cmd_t term_cmds[];
|
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static term_cmd_t info_cmds[];
|
| 73 |
|
| 74 |
void 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 |
|
| 82 |
void term_flush(void) |
| 83 |
{
|
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fflush(stdout); |
| 85 |
} |
| 86 |
|
| 87 |
static int compare_cmd(const char *name, const char *list) |
| 88 |
{
|
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const char *p, *pstart; |
| 90 |
int len;
|
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len = strlen(name); |
| 92 |
p = list; |
| 93 |
for(;;) {
|
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pstart = p; |
| 95 |
p = strchr(p, '|');
|
| 96 |
if (!p)
|
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p = pstart + strlen(pstart); |
| 98 |
if ((p - pstart) == len && !memcmp(pstart, name, len))
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return 1; |
| 100 |
if (*p == '\0') |
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break;
|
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p++; |
| 103 |
} |
| 104 |
return 0; |
| 105 |
} |
| 106 |
|
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static void help_cmd1(term_cmd_t *cmds, const char *prefix, const char *name) |
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{
|
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term_cmd_t *cmd; |
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|
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for(cmd = cmds; cmd->name != NULL; cmd++) { |
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if (!name || !strcmp(name, cmd->name))
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term_printf("%s%s %s -- %s\n", prefix, cmd->name, cmd->params, cmd->help);
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} |
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} |
| 116 |
|
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static void help_cmd(const char *name) |
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{
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if (name && !strcmp(name, "info")) { |
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help_cmd1(info_cmds, "info ", NULL); |
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} else {
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help_cmd1(term_cmds, "", name);
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if (name && !strcmp(name, "log")) { |
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CPULogItem *item; |
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term_printf("Log items (comma separated):\n");
|
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term_printf("%-10s %s\n", "none", "remove all logs"); |
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for(item = cpu_log_items; item->mask != 0; item++) { |
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term_printf("%-10s %s\n", item->name, item->help);
|
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} |
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} |
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} |
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} |
| 133 |
|
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static void do_help(const char *name) |
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{
|
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help_cmd(name); |
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} |
| 138 |
|
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static void do_commit(void) |
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{
|
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int i;
|
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|
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for (i = 0; i < MAX_DISKS; i++) { |
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if (bs_table[i])
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bdrv_commit(bs_table[i]); |
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} |
| 147 |
} |
| 148 |
|
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static void do_info(const char *item) |
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{
|
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term_cmd_t *cmd; |
| 152 |
|
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if (!item)
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goto help;
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for(cmd = info_cmds; cmd->name != NULL; cmd++) { |
| 156 |
if (compare_cmd(item, cmd->name))
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goto found;
|
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} |
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help:
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help_cmd("info");
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return;
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found:
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cmd->handler(); |
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} |
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|
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static void do_info_network(void) |
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{
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int i, j;
|
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NetDriverState *nd; |
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|
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for(i = 0; i < nb_nics; i++) { |
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nd = &nd_table[i]; |
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term_printf("%d: ifname=%s macaddr=", i, nd->ifname);
|
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for(j = 0; j < 6; j++) { |
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if (j > 0) |
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term_printf(":");
|
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term_printf("%02x", nd->macaddr[j]);
|
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} |
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term_printf("\n");
|
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} |
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} |
| 182 |
|
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static void do_info_block(void) |
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{
|
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bdrv_info(); |
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} |
| 187 |
|
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static void do_info_registers(void) |
| 189 |
{
|
| 190 |
#ifdef TARGET_I386
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cpu_dump_state(cpu_single_env, stdout, X86_DUMP_FPU | X86_DUMP_CCOP); |
| 192 |
#else
|
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cpu_dump_state(cpu_single_env, stdout, 0);
|
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#endif
|
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} |
| 196 |
|
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static void do_info_history (void) |
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{
|
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int i;
|
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|
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for (i = 0; i < TERM_MAX_CMDS; i++) { |
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if (term_history[i] == NULL) |
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break;
|
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term_printf("%d: '%s'\n", i, term_history[i]);
|
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} |
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} |
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|
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static void do_quit(void) |
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{
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exit(0);
|
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} |
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|
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static int eject_device(BlockDriverState *bs, int force) |
| 214 |
{
|
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if (bdrv_is_inserted(bs)) {
|
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if (!force) {
|
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if (!bdrv_is_removable(bs)) {
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term_printf("device is not removable\n");
|
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return -1; |
| 220 |
} |
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if (bdrv_is_locked(bs)) {
|
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term_printf("device is locked\n");
|
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return -1; |
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} |
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} |
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bdrv_close(bs); |
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} |
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return 0; |
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} |
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|
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static void do_eject(int force, const char *filename) |
| 232 |
{
|
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BlockDriverState *bs; |
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|
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term_printf("%d %s\n", force, filename);
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|
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bs = bdrv_find(filename); |
| 238 |
if (!bs) {
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term_printf("device not found\n");
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return;
|
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} |
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eject_device(bs, force); |
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} |
| 244 |
|
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static void do_change(const char *device, const char *filename) |
| 246 |
{
|
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BlockDriverState *bs; |
| 248 |
|
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bs = bdrv_find(device); |
| 250 |
if (!bs) {
|
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term_printf("device not found\n");
|
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return;
|
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} |
| 254 |
if (eject_device(bs, 0) < 0) |
| 255 |
return;
|
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bdrv_open(bs, filename, 0);
|
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} |
| 258 |
|
| 259 |
static void do_screen_dump(const char *filename) |
| 260 |
{
|
| 261 |
vga_screen_dump(filename); |
| 262 |
} |
| 263 |
|
| 264 |
static void do_log(const char *items) |
| 265 |
{
|
| 266 |
int mask;
|
| 267 |
|
| 268 |
if (!strcmp(items, "none")) { |
| 269 |
mask = 0;
|
| 270 |
} else {
|
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mask = cpu_str_to_log_mask(items); |
| 272 |
if (!mask) {
|
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help_cmd("log");
|
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return;
|
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} |
| 276 |
} |
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cpu_set_log(mask); |
| 278 |
} |
| 279 |
|
| 280 |
static void do_savevm(const char *filename) |
| 281 |
{
|
| 282 |
if (qemu_savevm(filename) < 0) |
| 283 |
term_printf("I/O error when saving VM to '%s'\n", filename);
|
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} |
| 285 |
|
| 286 |
static void do_loadvm(const char *filename) |
| 287 |
{
|
| 288 |
if (qemu_loadvm(filename) < 0) |
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term_printf("I/O error when loading VM from '%s'\n", filename);
|
| 290 |
} |
| 291 |
|
| 292 |
static void do_stop(void) |
| 293 |
{
|
| 294 |
vm_stop(EXCP_INTERRUPT); |
| 295 |
} |
| 296 |
|
| 297 |
static void do_cont(void) |
| 298 |
{
|
| 299 |
vm_start(); |
| 300 |
} |
| 301 |
|
| 302 |
#ifdef CONFIG_GDBSTUB
|
| 303 |
static void do_gdbserver(int has_port, int port) |
| 304 |
{
|
| 305 |
if (!has_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);
|
| 309 |
} else {
|
| 310 |
qemu_printf("Waiting gdb connection on port %d\n", port);
|
| 311 |
} |
| 312 |
} |
| 313 |
#endif
|
| 314 |
|
| 315 |
static 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 |
|
| 342 |
static 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
|
| 353 |
/* we use the current CS size */
|
| 354 |
if (!(cpu_single_env->segs[R_CS].flags & DESC_B_MASK))
|
| 355 |
flags = 1;
|
| 356 |
#endif
|
| 357 |
monitor_disas(addr, count, is_physical, flags); |
| 358 |
return;
|
| 359 |
} |
| 360 |
|
| 361 |
len = wsize * count; |
| 362 |
if (wsize == 1) |
| 363 |
line_size = 8;
|
| 364 |
else
|
| 365 |
line_size = 16;
|
| 366 |
nb_per_line = line_size / wsize; |
| 367 |
max_digits = 0;
|
| 368 |
|
| 369 |
switch(format) {
|
| 370 |
case 'o': |
| 371 |
max_digits = (wsize * 8 + 2) / 3; |
| 372 |
break;
|
| 373 |
default:
|
| 374 |
case 'x': |
| 375 |
max_digits = (wsize * 8) / 4; |
| 376 |
break;
|
| 377 |
case 'u': |
| 378 |
case 'd': |
| 379 |
max_digits = (wsize * 8 * 10 + 32) / 33; |
| 380 |
break;
|
| 381 |
case 'c': |
| 382 |
wsize = 1;
|
| 383 |
break;
|
| 384 |
} |
| 385 |
|
| 386 |
while (len > 0) { |
| 387 |
term_printf("0x%08x:", addr);
|
| 388 |
l = len; |
| 389 |
if (l > line_size)
|
| 390 |
l = line_size; |
| 391 |
if (is_physical) {
|
| 392 |
cpu_physical_memory_rw(addr, buf, l, 0);
|
| 393 |
} else {
|
| 394 |
cpu_memory_rw_debug(cpu_single_env, addr, buf, l, 0);
|
| 395 |
} |
| 396 |
i = 0;
|
| 397 |
while (i < l) {
|
| 398 |
switch(wsize) {
|
| 399 |
default:
|
| 400 |
case 1: |
| 401 |
v = ldub_raw(buf + i); |
| 402 |
break;
|
| 403 |
case 2: |
| 404 |
v = lduw_raw(buf + i); |
| 405 |
break;
|
| 406 |
case 4: |
| 407 |
v = ldl_raw(buf + i); |
| 408 |
break;
|
| 409 |
case 8: |
| 410 |
v = ldq_raw(buf + i); |
| 411 |
break;
|
| 412 |
} |
| 413 |
term_printf(" ");
|
| 414 |
switch(format) {
|
| 415 |
case 'o': |
| 416 |
term_printf("%#*llo", max_digits, v);
|
| 417 |
break;
|
| 418 |
case 'x': |
| 419 |
term_printf("0x%0*llx", max_digits, v);
|
| 420 |
break;
|
| 421 |
case 'u': |
| 422 |
term_printf("%*llu", max_digits, v);
|
| 423 |
break;
|
| 424 |
case 'd': |
| 425 |
term_printf("%*lld", max_digits, v);
|
| 426 |
break;
|
| 427 |
case 'c': |
| 428 |
term_printc(v); |
| 429 |
break;
|
| 430 |
} |
| 431 |
i += wsize; |
| 432 |
} |
| 433 |
term_printf("\n");
|
| 434 |
addr += l; |
| 435 |
len -= l; |
| 436 |
} |
| 437 |
} |
| 438 |
|
| 439 |
static void do_memory_dump(int count, int format, int size, int addr) |
| 440 |
{
|
| 441 |
memory_dump(count, format, size, addr, 0);
|
| 442 |
} |
| 443 |
|
| 444 |
static void do_physical_memory_dump(int count, int format, int size, int addr) |
| 445 |
{
|
| 446 |
memory_dump(count, format, size, addr, 1);
|
| 447 |
} |
| 448 |
|
| 449 |
static void do_print(int count, int format, int size, int val) |
| 450 |
{
|
| 451 |
switch(format) {
|
| 452 |
case 'o': |
| 453 |
term_printf("%#o", val);
|
| 454 |
break;
|
| 455 |
case 'x': |
| 456 |
term_printf("%#x", val);
|
| 457 |
break;
|
| 458 |
case 'u': |
| 459 |
term_printf("%u", val);
|
| 460 |
break;
|
| 461 |
default:
|
| 462 |
case 'd': |
| 463 |
term_printf("%d", val);
|
| 464 |
break;
|
| 465 |
case 'c': |
| 466 |
term_printc(val); |
| 467 |
break;
|
| 468 |
} |
| 469 |
term_printf("\n");
|
| 470 |
} |
| 471 |
|
| 472 |
static term_cmd_t term_cmds[] = {
|
| 473 |
{ "help|?", "s?", do_help,
|
| 474 |
"[cmd]", "show the help" }, |
| 475 |
{ "commit", "", do_commit,
|
| 476 |
"", "commit changes to the disk images (if -snapshot is used)" }, |
| 477 |
{ "info", "s?", do_info,
|
| 478 |
"subcommand", "show various information about the system state" }, |
| 479 |
{ "q|quit", "", do_quit,
|
| 480 |
"", "quit the emulator" }, |
| 481 |
{ "eject", "-fs", do_eject,
|
| 482 |
"[-f] device", "eject a removable media (use -f to force it)" }, |
| 483 |
{ "change", "sF", do_change,
|
| 484 |
"device filename", "change a removable media" }, |
| 485 |
{ "screendump", "F", do_screen_dump,
|
| 486 |
"filename", "save screen into PPM image 'filename'" }, |
| 487 |
{ "log", "s", do_log,
|
| 488 |
"item1[,...]", "activate logging of the specified items to '/tmp/qemu.log'" }, |
| 489 |
{ "savevm", "F", do_savevm,
|
| 490 |
"filename", "save the whole virtual machine state to 'filename'" }, |
| 491 |
{ "loadvm", "F", do_loadvm,
|
| 492 |
"filename", "restore the whole virtual machine state from 'filename'" }, |
| 493 |
{ "stop", "", do_stop,
|
| 494 |
"", "stop emulation", }, |
| 495 |
{ "c|cont", "", do_cont,
|
| 496 |
"", "resume emulation", }, |
| 497 |
#ifdef CONFIG_GDBSTUB
|
| 498 |
{ "gdbserver", "i?", do_gdbserver,
|
| 499 |
"[port]", "start gdbserver session (default port=1234)", }, |
| 500 |
#endif
|
| 501 |
{ "x", "/i", do_memory_dump,
|
| 502 |
"/fmt addr", "virtual memory dump starting at 'addr'", }, |
| 503 |
{ "xp", "/i", do_physical_memory_dump,
|
| 504 |
"/fmt addr", "physical memory dump starting at 'addr'", }, |
| 505 |
{ "p|print", "/i", do_print,
|
| 506 |
"/fmt expr", "print expression value (use $reg for CPU register access)", }, |
| 507 |
{ NULL, NULL, },
|
| 508 |
}; |
| 509 |
|
| 510 |
static term_cmd_t info_cmds[] = {
|
| 511 |
{ "network", "", do_info_network,
|
| 512 |
"", "show the network state" }, |
| 513 |
{ "block", "", do_info_block,
|
| 514 |
"", "show the block devices" }, |
| 515 |
{ "registers", "", do_info_registers,
|
| 516 |
"", "show the cpu registers" }, |
| 517 |
{ "history", "", do_info_history,
|
| 518 |
"", "show the command line history", }, |
| 519 |
{ NULL, NULL, },
|
| 520 |
}; |
| 521 |
|
| 522 |
/*******************************************************************/
|
| 523 |
|
| 524 |
static const char *pch; |
| 525 |
static jmp_buf expr_env;
|
| 526 |
|
| 527 |
typedef struct MonitorDef { |
| 528 |
const char *name; |
| 529 |
int offset;
|
| 530 |
int (*get_value)(struct MonitorDef *md); |
| 531 |
} MonitorDef; |
| 532 |
|
| 533 |
static MonitorDef monitor_defs[] = {
|
| 534 |
#ifdef TARGET_I386
|
| 535 |
{ "eax", offsetof(CPUState, regs[0]) },
|
| 536 |
{ "ecx", offsetof(CPUState, regs[1]) },
|
| 537 |
{ "edx", offsetof(CPUState, regs[2]) },
|
| 538 |
{ "ebx", offsetof(CPUState, regs[3]) },
|
| 539 |
{ "esp|sp", offsetof(CPUState, regs[4]) },
|
| 540 |
{ "ebp|fp", offsetof(CPUState, regs[5]) },
|
| 541 |
{ "esi", offsetof(CPUState, regs[6]) },
|
| 542 |
{ "esi", offsetof(CPUState, regs[7]) },
|
| 543 |
{ "eflags", offsetof(CPUState, eflags) },
|
| 544 |
{ "eip|pc", offsetof(CPUState, eip) },
|
| 545 |
#endif
|
| 546 |
{ NULL },
|
| 547 |
}; |
| 548 |
|
| 549 |
static void expr_error(const char *fmt) |
| 550 |
{
|
| 551 |
term_printf(fmt); |
| 552 |
term_printf("\n");
|
| 553 |
longjmp(expr_env, 1);
|
| 554 |
} |
| 555 |
|
| 556 |
static int get_monitor_def(int *pval, const char *name) |
| 557 |
{
|
| 558 |
MonitorDef *md; |
| 559 |
for(md = monitor_defs; md->name != NULL; md++) { |
| 560 |
if (compare_cmd(name, md->name)) {
|
| 561 |
if (md->get_value) {
|
| 562 |
*pval = md->get_value(md); |
| 563 |
} else {
|
| 564 |
*pval = *(uint32_t *)((uint8_t *)cpu_single_env + md->offset); |
| 565 |
} |
| 566 |
return 0; |
| 567 |
} |
| 568 |
} |
| 569 |
return -1; |
| 570 |
} |
| 571 |
|
| 572 |
static void next(void) |
| 573 |
{
|
| 574 |
if (pch != '\0') { |
| 575 |
pch++; |
| 576 |
while (isspace(*pch))
|
| 577 |
pch++; |
| 578 |
} |
| 579 |
} |
| 580 |
|
| 581 |
static int expr_sum(void); |
| 582 |
|
| 583 |
static int expr_unary(void) |
| 584 |
{
|
| 585 |
int n;
|
| 586 |
char *p;
|
| 587 |
|
| 588 |
switch(*pch) {
|
| 589 |
case '+': |
| 590 |
next(); |
| 591 |
n = expr_unary(); |
| 592 |
break;
|
| 593 |
case '-': |
| 594 |
next(); |
| 595 |
n = -expr_unary(); |
| 596 |
break;
|
| 597 |
case '~': |
| 598 |
next(); |
| 599 |
n = ~expr_unary(); |
| 600 |
break;
|
| 601 |
case '(': |
| 602 |
next(); |
| 603 |
n = expr_sum(); |
| 604 |
if (*pch != ')') { |
| 605 |
expr_error("')' expected");
|
| 606 |
} |
| 607 |
next(); |
| 608 |
break;
|
| 609 |
case '$': |
| 610 |
{
|
| 611 |
char buf[128], *q; |
| 612 |
|
| 613 |
pch++; |
| 614 |
q = buf; |
| 615 |
while ((*pch >= 'a' && *pch <= 'z') || |
| 616 |
(*pch >= 'A' && *pch <= 'Z') || |
| 617 |
(*pch >= '0' && *pch <= '9') || |
| 618 |
*pch == '_') {
|
| 619 |
if ((q - buf) < sizeof(buf) - 1) |
| 620 |
*q++ = *pch; |
| 621 |
pch++; |
| 622 |
} |
| 623 |
while (isspace(*pch))
|
| 624 |
pch++; |
| 625 |
*q = 0;
|
| 626 |
if (get_monitor_def(&n, buf))
|
| 627 |
expr_error("unknown register");
|
| 628 |
} |
| 629 |
break;
|
| 630 |
case '\0': |
| 631 |
expr_error("unexpected end of expression");
|
| 632 |
n = 0;
|
| 633 |
break;
|
| 634 |
default:
|
| 635 |
n = strtoul(pch, &p, 0);
|
| 636 |
if (pch == p) {
|
| 637 |
expr_error("invalid char in expression");
|
| 638 |
} |
| 639 |
pch = p; |
| 640 |
while (isspace(*pch))
|
| 641 |
pch++; |
| 642 |
break;
|
| 643 |
} |
| 644 |
return n;
|
| 645 |
} |
| 646 |
|
| 647 |
|
| 648 |
static int expr_prod(void) |
| 649 |
{
|
| 650 |
int val, val2, op;
|
| 651 |
|
| 652 |
val = expr_unary(); |
| 653 |
for(;;) {
|
| 654 |
op = *pch; |
| 655 |
if (op != '*' && op != '/' && op != '%') |
| 656 |
break;
|
| 657 |
next(); |
| 658 |
val2 = expr_unary(); |
| 659 |
switch(op) {
|
| 660 |
default:
|
| 661 |
case '*': |
| 662 |
val *= val2; |
| 663 |
break;
|
| 664 |
case '/': |
| 665 |
case '%': |
| 666 |
if (val2 == 0) |
| 667 |
expr_error("divison by zero");
|
| 668 |
if (op == '/') |
| 669 |
val /= val2; |
| 670 |
else
|
| 671 |
val %= val2; |
| 672 |
break;
|
| 673 |
} |
| 674 |
} |
| 675 |
return val;
|
| 676 |
} |
| 677 |
|
| 678 |
static int expr_logic(void) |
| 679 |
{
|
| 680 |
int val, val2, op;
|
| 681 |
|
| 682 |
val = expr_prod(); |
| 683 |
for(;;) {
|
| 684 |
op = *pch; |
| 685 |
if (op != '&' && op != '|' && op != '^') |
| 686 |
break;
|
| 687 |
next(); |
| 688 |
val2 = expr_prod(); |
| 689 |
switch(op) {
|
| 690 |
default:
|
| 691 |
case '&': |
| 692 |
val &= val2; |
| 693 |
break;
|
| 694 |
case '|': |
| 695 |
val |= val2; |
| 696 |
break;
|
| 697 |
case '^': |
| 698 |
val ^= val2; |
| 699 |
break;
|
| 700 |
} |
| 701 |
} |
| 702 |
return val;
|
| 703 |
} |
| 704 |
|
| 705 |
static int expr_sum(void) |
| 706 |
{
|
| 707 |
int val, val2, op;
|
| 708 |
|
| 709 |
val = expr_logic(); |
| 710 |
for(;;) {
|
| 711 |
op = *pch; |
| 712 |
if (op != '+' && op != '-') |
| 713 |
break;
|
| 714 |
next(); |
| 715 |
val2 = expr_logic(); |
| 716 |
if (op == '+') |
| 717 |
val += val2; |
| 718 |
else
|
| 719 |
val -= val2; |
| 720 |
} |
| 721 |
return val;
|
| 722 |
} |
| 723 |
|
| 724 |
static int get_expr(int *pval, const char **pp) |
| 725 |
{
|
| 726 |
pch = *pp; |
| 727 |
if (setjmp(expr_env)) {
|
| 728 |
*pp = pch; |
| 729 |
return -1; |
| 730 |
} |
| 731 |
while (isspace(*pch))
|
| 732 |
pch++; |
| 733 |
*pval = expr_sum(); |
| 734 |
*pp = pch; |
| 735 |
return 0; |
| 736 |
} |
| 737 |
|
| 738 |
static int get_str(char *buf, int buf_size, const char **pp) |
| 739 |
{
|
| 740 |
const char *p; |
| 741 |
char *q;
|
| 742 |
int c;
|
| 743 |
|
| 744 |
p = *pp; |
| 745 |
while (isspace(*p))
|
| 746 |
p++; |
| 747 |
if (*p == '\0') { |
| 748 |
fail:
|
| 749 |
*pp = p; |
| 750 |
return -1; |
| 751 |
} |
| 752 |
q = buf; |
| 753 |
if (*p == '\"') { |
| 754 |
p++; |
| 755 |
while (*p != '\0' && *p != '\"') { |
| 756 |
if (*p == '\\') { |
| 757 |
p++; |
| 758 |
c = *p++; |
| 759 |
switch(c) {
|
| 760 |
case 'n': |
| 761 |
c = '\n';
|
| 762 |
break;
|
| 763 |
case 'r': |
| 764 |
c = '\r';
|
| 765 |
break;
|
| 766 |
case '\\': |
| 767 |
case '\'': |
| 768 |
case '\"': |
| 769 |
break;
|
| 770 |
default:
|
| 771 |
qemu_printf("unsupported escape code: '\\%c'\n", c);
|
| 772 |
goto fail;
|
| 773 |
} |
| 774 |
if ((q - buf) < buf_size - 1) { |
| 775 |
*q++ = c; |
| 776 |
} |
| 777 |
} else {
|
| 778 |
if ((q - buf) < buf_size - 1) { |
| 779 |
*q++ = *p; |
| 780 |
} |
| 781 |
p++; |
| 782 |
} |
| 783 |
} |
| 784 |
if (*p != '\"') { |
| 785 |
qemu_printf("untermintated string\n");
|
| 786 |
goto fail;
|
| 787 |
} |
| 788 |
p++; |
| 789 |
} else {
|
| 790 |
while (*p != '\0' && !isspace(*p)) { |
| 791 |
if ((q - buf) < buf_size - 1) { |
| 792 |
*q++ = *p; |
| 793 |
} |
| 794 |
p++; |
| 795 |
} |
| 796 |
*q = '\0';
|
| 797 |
} |
| 798 |
*pp = p; |
| 799 |
return 0; |
| 800 |
} |
| 801 |
|
| 802 |
static int default_fmt_format = 'x'; |
| 803 |
static int default_fmt_size = 4; |
| 804 |
|
| 805 |
#define MAX_ARGS 16 |
| 806 |
|
| 807 |
static void term_handle_command(const char *cmdline) |
| 808 |
{
|
| 809 |
const char *p, *pstart, *typestr; |
| 810 |
char *q;
|
| 811 |
int c, nb_args, len, i, has_arg;
|
| 812 |
term_cmd_t *cmd; |
| 813 |
char cmdname[256]; |
| 814 |
char buf[1024]; |
| 815 |
void *str_allocated[MAX_ARGS];
|
| 816 |
void *args[MAX_ARGS];
|
| 817 |
|
| 818 |
#ifdef DEBUG
|
| 819 |
term_printf("command='%s'\n", cmdline);
|
| 820 |
#endif
|
| 821 |
|
| 822 |
/* extract the command name */
|
| 823 |
p = cmdline; |
| 824 |
q = cmdname; |
| 825 |
while (isspace(*p))
|
| 826 |
p++; |
| 827 |
if (*p == '\0') |
| 828 |
return;
|
| 829 |
pstart = p; |
| 830 |
while (*p != '\0' && *p != '/' && !isspace(*p)) |
| 831 |
p++; |
| 832 |
len = p - pstart; |
| 833 |
if (len > sizeof(cmdname) - 1) |
| 834 |
len = sizeof(cmdname) - 1; |
| 835 |
memcpy(cmdname, pstart, len); |
| 836 |
cmdname[len] = '\0';
|
| 837 |
|
| 838 |
/* find the command */
|
| 839 |
for(cmd = term_cmds; cmd->name != NULL; cmd++) { |
| 840 |
if (compare_cmd(cmdname, cmd->name))
|
| 841 |
goto found;
|
| 842 |
} |
| 843 |
term_printf("unknown command: '%s'\n", cmdname);
|
| 844 |
return;
|
| 845 |
found:
|
| 846 |
|
| 847 |
for(i = 0; i < MAX_ARGS; i++) |
| 848 |
str_allocated[i] = NULL;
|
| 849 |
|
| 850 |
/* parse the parameters */
|
| 851 |
typestr = cmd->args_type; |
| 852 |
nb_args = 0;
|
| 853 |
for(;;) {
|
| 854 |
c = *typestr; |
| 855 |
if (c == '\0') |
| 856 |
break;
|
| 857 |
typestr++; |
| 858 |
switch(c) {
|
| 859 |
case 'F': |
| 860 |
case 's': |
| 861 |
{
|
| 862 |
int ret;
|
| 863 |
char *str;
|
| 864 |
|
| 865 |
while (isspace(*p))
|
| 866 |
p++; |
| 867 |
if (*typestr == '?') { |
| 868 |
typestr++; |
| 869 |
if (*p == '\0') { |
| 870 |
/* no optional string: NULL argument */
|
| 871 |
str = NULL;
|
| 872 |
goto add_str;
|
| 873 |
} |
| 874 |
} |
| 875 |
ret = get_str(buf, sizeof(buf), &p);
|
| 876 |
if (ret < 0) { |
| 877 |
if (c == 'F') |
| 878 |
term_printf("%s: filename expected\n", cmdname);
|
| 879 |
else
|
| 880 |
term_printf("%s: string expected\n", cmdname);
|
| 881 |
goto fail;
|
| 882 |
} |
| 883 |
str = qemu_malloc(strlen(buf) + 1);
|
| 884 |
strcpy(str, buf); |
| 885 |
str_allocated[nb_args] = str; |
| 886 |
add_str:
|
| 887 |
if (nb_args >= MAX_ARGS) {
|
| 888 |
error_args:
|
| 889 |
term_printf("%s: too many arguments\n", cmdname);
|
| 890 |
goto fail;
|
| 891 |
} |
| 892 |
args[nb_args++] = str; |
| 893 |
} |
| 894 |
break;
|
| 895 |
case '/': |
| 896 |
{
|
| 897 |
int count, format, size;
|
| 898 |
|
| 899 |
while (isspace(*p))
|
| 900 |
p++; |
| 901 |
if (*p == '/') { |
| 902 |
/* format found */
|
| 903 |
p++; |
| 904 |
count = 1;
|
| 905 |
if (isdigit(*p)) {
|
| 906 |
count = 0;
|
| 907 |
while (isdigit(*p)) {
|
| 908 |
count = count * 10 + (*p - '0'); |
| 909 |
p++; |
| 910 |
} |
| 911 |
} |
| 912 |
size = -1;
|
| 913 |
format = -1;
|
| 914 |
for(;;) {
|
| 915 |
switch(*p) {
|
| 916 |
case 'o': |
| 917 |
case 'd': |
| 918 |
case 'u': |
| 919 |
case 'x': |
| 920 |
case 'i': |
| 921 |
case 'c': |
| 922 |
format = *p++; |
| 923 |
break;
|
| 924 |
case 'b': |
| 925 |
size = 1;
|
| 926 |
p++; |
| 927 |
break;
|
| 928 |
case 'h': |
| 929 |
size = 2;
|
| 930 |
p++; |
| 931 |
break;
|
| 932 |
case 'w': |
| 933 |
size = 4;
|
| 934 |
p++; |
| 935 |
break;
|
| 936 |
case 'g': |
| 937 |
case 'L': |
| 938 |
size = 8;
|
| 939 |
p++; |
| 940 |
break;
|
| 941 |
default:
|
| 942 |
goto next;
|
| 943 |
} |
| 944 |
} |
| 945 |
next:
|
| 946 |
if (*p != '\0' && !isspace(*p)) { |
| 947 |
term_printf("invalid char in format: '%c'\n", *p);
|
| 948 |
goto fail;
|
| 949 |
} |
| 950 |
if (size < 0) |
| 951 |
size = default_fmt_size; |
| 952 |
if (format < 0) |
| 953 |
format = default_fmt_format; |
| 954 |
default_fmt_size = size; |
| 955 |
default_fmt_format = format; |
| 956 |
} else {
|
| 957 |
count = 1;
|
| 958 |
format = default_fmt_format; |
| 959 |
size = default_fmt_size; |
| 960 |
} |
| 961 |
if (nb_args + 3 > MAX_ARGS) |
| 962 |
goto error_args;
|
| 963 |
args[nb_args++] = (void*)count;
|
| 964 |
args[nb_args++] = (void*)format;
|
| 965 |
args[nb_args++] = (void*)size;
|
| 966 |
} |
| 967 |
break;
|
| 968 |
case 'i': |
| 969 |
{
|
| 970 |
int val;
|
| 971 |
while (isspace(*p))
|
| 972 |
p++; |
| 973 |
if (*typestr == '?') { |
| 974 |
typestr++; |
| 975 |
if (*p == '\0') |
| 976 |
has_arg = 0;
|
| 977 |
else
|
| 978 |
has_arg = 1;
|
| 979 |
if (nb_args >= MAX_ARGS)
|
| 980 |
goto error_args;
|
| 981 |
args[nb_args++] = (void *)has_arg;
|
| 982 |
if (!has_arg) {
|
| 983 |
if (nb_args >= MAX_ARGS)
|
| 984 |
goto error_args;
|
| 985 |
val = -1;
|
| 986 |
goto add_num;
|
| 987 |
} |
| 988 |
} |
| 989 |
if (get_expr(&val, &p))
|
| 990 |
goto fail;
|
| 991 |
add_num:
|
| 992 |
if (nb_args >= MAX_ARGS)
|
| 993 |
goto error_args;
|
| 994 |
args[nb_args++] = (void *)val;
|
| 995 |
} |
| 996 |
break;
|
| 997 |
case '-': |
| 998 |
{
|
| 999 |
int has_option;
|
| 1000 |
/* option */
|
| 1001 |
|
| 1002 |
c = *typestr++; |
| 1003 |
if (c == '\0') |
| 1004 |
goto bad_type;
|
| 1005 |
while (isspace(*p))
|
| 1006 |
p++; |
| 1007 |
has_option = 0;
|
| 1008 |
if (*p == '-') { |
| 1009 |
p++; |
| 1010 |
if (*p != c) {
|
| 1011 |
term_printf("%s: unsupported option -%c\n",
|
| 1012 |
cmdname, *p); |
| 1013 |
goto fail;
|
| 1014 |
} |
| 1015 |
p++; |
| 1016 |
has_option = 1;
|
| 1017 |
} |
| 1018 |
if (nb_args >= MAX_ARGS)
|
| 1019 |
goto error_args;
|
| 1020 |
args[nb_args++] = (void *)has_option;
|
| 1021 |
} |
| 1022 |
break;
|
| 1023 |
default:
|
| 1024 |
bad_type:
|
| 1025 |
term_printf("%s: unknown type '%c'\n", cmdname, c);
|
| 1026 |
goto fail;
|
| 1027 |
} |
| 1028 |
} |
| 1029 |
/* check that all arguments were parsed */
|
| 1030 |
while (isspace(*p))
|
| 1031 |
p++; |
| 1032 |
if (*p != '\0') { |
| 1033 |
term_printf("%s: extraneous characters at the end of line\n",
|
| 1034 |
cmdname); |
| 1035 |
goto fail;
|
| 1036 |
} |
| 1037 |
|
| 1038 |
switch(nb_args) {
|
| 1039 |
case 0: |
| 1040 |
cmd->handler(); |
| 1041 |
break;
|
| 1042 |
case 1: |
| 1043 |
cmd->handler(args[0]);
|
| 1044 |
break;
|
| 1045 |
case 2: |
| 1046 |
cmd->handler(args[0], args[1]); |
| 1047 |
break;
|
| 1048 |
case 3: |
| 1049 |
cmd->handler(args[0], args[1], args[2]); |
| 1050 |
break;
|
| 1051 |
case 4: |
| 1052 |
cmd->handler(args[0], args[1], args[2], args[3]); |
| 1053 |
break;
|
| 1054 |
case 5: |
| 1055 |
cmd->handler(args[0], args[1], args[2], args[3], args[4]); |
| 1056 |
break;
|
| 1057 |
default:
|
| 1058 |
term_printf("unsupported number of arguments: %d\n", nb_args);
|
| 1059 |
goto fail;
|
| 1060 |
} |
| 1061 |
fail:
|
| 1062 |
for(i = 0; i < MAX_ARGS; i++) |
| 1063 |
qemu_free(str_allocated[i]); |
| 1064 |
return;
|
| 1065 |
} |
| 1066 |
|
| 1067 |
static void term_show_prompt(void) |
| 1068 |
{
|
| 1069 |
term_printf("(qemu) ");
|
| 1070 |
fflush(stdout); |
| 1071 |
term_cmd_buf_index = 0;
|
| 1072 |
term_cmd_buf_size = 0;
|
| 1073 |
term_esc_state = IS_NORM; |
| 1074 |
} |
| 1075 |
|
| 1076 |
static void term_print_cmdline (const char *cmdline) |
| 1077 |
{
|
| 1078 |
term_show_prompt(); |
| 1079 |
term_printf(cmdline); |
| 1080 |
term_flush(); |
| 1081 |
} |
| 1082 |
|
| 1083 |
static void term_insert_char(int ch) |
| 1084 |
{
|
| 1085 |
if (term_cmd_buf_index < TERM_CMD_BUF_SIZE) {
|
| 1086 |
memmove(term_cmd_buf + term_cmd_buf_index + 1,
|
| 1087 |
term_cmd_buf + term_cmd_buf_index, |
| 1088 |
term_cmd_buf_size - term_cmd_buf_index); |
| 1089 |
term_cmd_buf[term_cmd_buf_index] = ch; |
| 1090 |
term_cmd_buf_size++; |
| 1091 |
term_printf("\033[@%c", ch);
|
| 1092 |
term_cmd_buf_index++; |
| 1093 |
term_flush(); |
| 1094 |
} |
| 1095 |
} |
| 1096 |
|
| 1097 |
static void term_backward_char(void) |
| 1098 |
{
|
| 1099 |
if (term_cmd_buf_index > 0) { |
| 1100 |
term_cmd_buf_index--; |
| 1101 |
term_printf("\033[D");
|
| 1102 |
term_flush(); |
| 1103 |
} |
| 1104 |
} |
| 1105 |
|
| 1106 |
static void term_forward_char(void) |
| 1107 |
{
|
| 1108 |
if (term_cmd_buf_index < term_cmd_buf_size) {
|
| 1109 |
term_cmd_buf_index++; |
| 1110 |
term_printf("\033[C");
|
| 1111 |
term_flush(); |
| 1112 |
} |
| 1113 |
} |
| 1114 |
|
| 1115 |
static void term_delete_char(void) |
| 1116 |
{
|
| 1117 |
if (term_cmd_buf_index < term_cmd_buf_size) {
|
| 1118 |
memmove(term_cmd_buf + term_cmd_buf_index, |
| 1119 |
term_cmd_buf + term_cmd_buf_index + 1,
|
| 1120 |
term_cmd_buf_size - term_cmd_buf_index - 1);
|
| 1121 |
term_printf("\033[P");
|
| 1122 |
term_cmd_buf_size--; |
| 1123 |
term_flush(); |
| 1124 |
} |
| 1125 |
} |
| 1126 |
|
| 1127 |
static void term_backspace(void) |
| 1128 |
{
|
| 1129 |
if (term_cmd_buf_index > 0) { |
| 1130 |
term_backward_char(); |
| 1131 |
term_delete_char(); |
| 1132 |
} |
| 1133 |
} |
| 1134 |
|
| 1135 |
static void term_bol(void) |
| 1136 |
{
|
| 1137 |
while (term_cmd_buf_index > 0) |
| 1138 |
term_backward_char(); |
| 1139 |
} |
| 1140 |
|
| 1141 |
static void term_eol(void) |
| 1142 |
{
|
| 1143 |
while (term_cmd_buf_index < term_cmd_buf_size)
|
| 1144 |
term_forward_char(); |
| 1145 |
} |
| 1146 |
|
| 1147 |
static void term_up_char(void) |
| 1148 |
{
|
| 1149 |
int idx;
|
| 1150 |
|
| 1151 |
if (term_hist_entry == 0) |
| 1152 |
return;
|
| 1153 |
if (term_hist_entry == -1) { |
| 1154 |
/* Find latest entry */
|
| 1155 |
for (idx = 0; idx < TERM_MAX_CMDS; idx++) { |
| 1156 |
if (term_history[idx] == NULL) |
| 1157 |
break;
|
| 1158 |
} |
| 1159 |
term_hist_entry = idx; |
| 1160 |
} |
| 1161 |
term_hist_entry--; |
| 1162 |
if (term_hist_entry >= 0) { |
| 1163 |
strcpy(term_cmd_buf, term_history[term_hist_entry]); |
| 1164 |
term_printf("\n");
|
| 1165 |
term_print_cmdline(term_cmd_buf); |
| 1166 |
term_cmd_buf_index = term_cmd_buf_size = strlen(term_cmd_buf); |
| 1167 |
} |
| 1168 |
} |
| 1169 |
|
| 1170 |
static void term_down_char(void) |
| 1171 |
{
|
| 1172 |
if (term_hist_entry == TERM_MAX_CMDS - 1 || term_hist_entry == -1) |
| 1173 |
return;
|
| 1174 |
if (term_history[++term_hist_entry] != NULL) { |
| 1175 |
strcpy(term_cmd_buf, term_history[term_hist_entry]); |
| 1176 |
} else {
|
| 1177 |
term_hist_entry = -1;
|
| 1178 |
} |
| 1179 |
term_printf("\n");
|
| 1180 |
term_print_cmdline(term_cmd_buf); |
| 1181 |
term_cmd_buf_index = term_cmd_buf_size = strlen(term_cmd_buf); |
| 1182 |
} |
| 1183 |
|
| 1184 |
static void term_hist_add(const char *cmdline) |
| 1185 |
{
|
| 1186 |
char *hist_entry, *new_entry;
|
| 1187 |
int idx;
|
| 1188 |
|
| 1189 |
if (cmdline[0] == '\0') |
| 1190 |
return;
|
| 1191 |
new_entry = NULL;
|
| 1192 |
if (term_hist_entry != -1) { |
| 1193 |
/* We were editing an existing history entry: replace it */
|
| 1194 |
hist_entry = term_history[term_hist_entry]; |
| 1195 |
idx = term_hist_entry; |
| 1196 |
if (strcmp(hist_entry, cmdline) == 0) { |
| 1197 |
goto same_entry;
|
| 1198 |
} |
| 1199 |
} |
| 1200 |
/* Search cmdline in history buffers */
|
| 1201 |
for (idx = 0; idx < TERM_MAX_CMDS; idx++) { |
| 1202 |
hist_entry = term_history[idx]; |
| 1203 |
if (hist_entry == NULL) |
| 1204 |
break;
|
| 1205 |
if (strcmp(hist_entry, cmdline) == 0) { |
| 1206 |
same_entry:
|
| 1207 |
new_entry = hist_entry; |
| 1208 |
/* Put this entry at the end of history */
|
| 1209 |
memmove(&term_history[idx], &term_history[idx + 1],
|
| 1210 |
&term_history[TERM_MAX_CMDS] - &term_history[idx + 1]);
|
| 1211 |
term_history[TERM_MAX_CMDS - 1] = NULL; |
| 1212 |
for (; idx < TERM_MAX_CMDS; idx++) {
|
| 1213 |
if (term_history[idx] == NULL) |
| 1214 |
break;
|
| 1215 |
} |
| 1216 |
break;
|
| 1217 |
} |
| 1218 |
} |
| 1219 |
if (idx == TERM_MAX_CMDS) {
|
| 1220 |
/* Need to get one free slot */
|
| 1221 |
free(term_history[0]);
|
| 1222 |
memcpy(term_history, &term_history[1],
|
| 1223 |
&term_history[TERM_MAX_CMDS] - &term_history[1]);
|
| 1224 |
term_history[TERM_MAX_CMDS - 1] = NULL; |
| 1225 |
idx = TERM_MAX_CMDS - 1;
|
| 1226 |
} |
| 1227 |
if (new_entry == NULL) |
| 1228 |
new_entry = strdup(cmdline); |
| 1229 |
term_history[idx] = new_entry; |
| 1230 |
term_hist_entry = -1;
|
| 1231 |
} |
| 1232 |
|
| 1233 |
/* return true if command handled */
|
| 1234 |
static void term_handle_byte(int ch) |
| 1235 |
{
|
| 1236 |
switch(term_esc_state) {
|
| 1237 |
case IS_NORM:
|
| 1238 |
switch(ch) {
|
| 1239 |
case 1: |
| 1240 |
term_bol(); |
| 1241 |
break;
|
| 1242 |
case 5: |
| 1243 |
term_eol(); |
| 1244 |
break;
|
| 1245 |
case 10: |
| 1246 |
case 13: |
| 1247 |
term_cmd_buf[term_cmd_buf_size] = '\0';
|
| 1248 |
term_hist_add(term_cmd_buf); |
| 1249 |
term_printf("\n");
|
| 1250 |
term_handle_command(term_cmd_buf); |
| 1251 |
term_show_prompt(); |
| 1252 |
break;
|
| 1253 |
case 27: |
| 1254 |
term_esc_state = IS_ESC; |
| 1255 |
break;
|
| 1256 |
case 127: |
| 1257 |
case 8: |
| 1258 |
term_backspace(); |
| 1259 |
break;
|
| 1260 |
case 155: |
| 1261 |
term_esc_state = IS_CSI; |
| 1262 |
break;
|
| 1263 |
default:
|
| 1264 |
if (ch >= 32) { |
| 1265 |
term_insert_char(ch); |
| 1266 |
} |
| 1267 |
break;
|
| 1268 |
} |
| 1269 |
break;
|
| 1270 |
case IS_ESC:
|
| 1271 |
if (ch == '[') { |
| 1272 |
term_esc_state = IS_CSI; |
| 1273 |
term_esc_param = 0;
|
| 1274 |
} else {
|
| 1275 |
term_esc_state = IS_NORM; |
| 1276 |
} |
| 1277 |
break;
|
| 1278 |
case IS_CSI:
|
| 1279 |
switch(ch) {
|
| 1280 |
case 'A': |
| 1281 |
case 'F': |
| 1282 |
term_up_char(); |
| 1283 |
break;
|
| 1284 |
case 'B': |
| 1285 |
case 'E': |
| 1286 |
term_down_char(); |
| 1287 |
break;
|
| 1288 |
case 'D': |
| 1289 |
term_backward_char(); |
| 1290 |
break;
|
| 1291 |
case 'C': |
| 1292 |
term_forward_char(); |
| 1293 |
break;
|
| 1294 |
case '0' ... '9': |
| 1295 |
term_esc_param = term_esc_param * 10 + (ch - '0'); |
| 1296 |
goto the_end;
|
| 1297 |
case '~': |
| 1298 |
switch(term_esc_param) {
|
| 1299 |
case 1: |
| 1300 |
term_bol(); |
| 1301 |
break;
|
| 1302 |
case 3: |
| 1303 |
term_delete_char(); |
| 1304 |
break;
|
| 1305 |
case 4: |
| 1306 |
term_eol(); |
| 1307 |
break;
|
| 1308 |
} |
| 1309 |
break;
|
| 1310 |
default:
|
| 1311 |
break;
|
| 1312 |
} |
| 1313 |
term_esc_state = IS_NORM; |
| 1314 |
the_end:
|
| 1315 |
break;
|
| 1316 |
} |
| 1317 |
} |
| 1318 |
|
| 1319 |
/*************************************************************/
|
| 1320 |
/* serial console support */
|
| 1321 |
|
| 1322 |
#define TERM_ESCAPE 0x01 /* ctrl-a is used for escape */ |
| 1323 |
|
| 1324 |
static int term_got_escape, term_command; |
| 1325 |
|
| 1326 |
void term_print_help(void) |
| 1327 |
{
|
| 1328 |
term_printf("\n"
|
| 1329 |
"C-a h print this help\n"
|
| 1330 |
"C-a x exit emulatior\n"
|
| 1331 |
"C-a s save disk data back to file (if -snapshot)\n"
|
| 1332 |
"C-a b send break (magic sysrq)\n"
|
| 1333 |
"C-a c switch between console and monitor\n"
|
| 1334 |
"C-a C-a send C-a\n"
|
| 1335 |
); |
| 1336 |
} |
| 1337 |
|
| 1338 |
/* called when a char is received */
|
| 1339 |
static void term_received_byte(int ch) |
| 1340 |
{
|
| 1341 |
if (!serial_console) {
|
| 1342 |
/* if no serial console, handle every command */
|
| 1343 |
term_handle_byte(ch); |
| 1344 |
} else {
|
| 1345 |
if (term_got_escape) {
|
| 1346 |
term_got_escape = 0;
|
| 1347 |
switch(ch) {
|
| 1348 |
case 'h': |
| 1349 |
term_print_help(); |
| 1350 |
break;
|
| 1351 |
case 'x': |
| 1352 |
exit(0);
|
| 1353 |
break;
|
| 1354 |
case 's': |
| 1355 |
{
|
| 1356 |
int i;
|
| 1357 |
for (i = 0; i < MAX_DISKS; i++) { |
| 1358 |
if (bs_table[i])
|
| 1359 |
bdrv_commit(bs_table[i]); |
| 1360 |
} |
| 1361 |
} |
| 1362 |
break;
|
| 1363 |
case 'b': |
| 1364 |
if (serial_console)
|
| 1365 |
serial_receive_break(serial_console); |
| 1366 |
break;
|
| 1367 |
case 'c': |
| 1368 |
if (!term_command) {
|
| 1369 |
term_show_prompt(); |
| 1370 |
term_command = 1;
|
| 1371 |
} else {
|
| 1372 |
term_command = 0;
|
| 1373 |
} |
| 1374 |
break;
|
| 1375 |
case TERM_ESCAPE:
|
| 1376 |
goto send_char;
|
| 1377 |
} |
| 1378 |
} else if (ch == TERM_ESCAPE) { |
| 1379 |
term_got_escape = 1;
|
| 1380 |
} else {
|
| 1381 |
send_char:
|
| 1382 |
if (term_command) {
|
| 1383 |
term_handle_byte(ch); |
| 1384 |
} else {
|
| 1385 |
if (serial_console)
|
| 1386 |
serial_receive_byte(serial_console, ch); |
| 1387 |
} |
| 1388 |
} |
| 1389 |
} |
| 1390 |
} |
| 1391 |
|
| 1392 |
static int term_can_read(void *opaque) |
| 1393 |
{
|
| 1394 |
if (serial_console) {
|
| 1395 |
return serial_can_receive(serial_console);
|
| 1396 |
} else {
|
| 1397 |
return 128; |
| 1398 |
} |
| 1399 |
} |
| 1400 |
|
| 1401 |
static void term_read(void *opaque, const uint8_t *buf, int size) |
| 1402 |
{
|
| 1403 |
int i;
|
| 1404 |
for(i = 0; i < size; i++) |
| 1405 |
term_received_byte(buf[i]); |
| 1406 |
} |
| 1407 |
|
| 1408 |
void monitor_init(void) |
| 1409 |
{
|
| 1410 |
if (!serial_console) {
|
| 1411 |
term_printf("QEMU %s monitor - type 'help' for more information\n",
|
| 1412 |
QEMU_VERSION); |
| 1413 |
term_show_prompt(); |
| 1414 |
} |
| 1415 |
term_hist_entry = -1;
|
| 1416 |
qemu_add_fd_read_handler(0, term_can_read, term_read, NULL); |
| 1417 |
} |