monitor.c 64.3 KB
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/*
 * QEMU monitor
 * 
 * Copyright (c) 2003-2004 Fabrice Bellard
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#include "vl.h"
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#include "disas.h"
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#include <dirent.h>
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//#define DEBUG
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//#define DEBUG_COMPLETION
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#ifndef offsetof
#define offsetof(type, field) ((size_t) &((type *)0)->field)
#endif

/*
 * Supported types:
 * 
 * 'F'          filename
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 * 'B'          block device name
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 * 's'          string (accept optional quote)
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 * 'i'          32 bit integer
 * 'l'          target long (32 or 64 bit)
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 * '/'          optional gdb-like print format (like "/10x")
 *
 * '?'          optional type (for 'F', 's' and 'i')
 *
 */

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typedef struct term_cmd_t {
    const char *name;
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    const char *args_type;
    void (*handler)();
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    const char *params;
    const char *help;
} term_cmd_t;

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static CharDriverState *monitor_hd;
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static int hide_banner;
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static term_cmd_t term_cmds[];
static term_cmd_t info_cmds[];

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static char term_outbuf[1024];
static int term_outbuf_index;
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static void monitor_start_input(void);

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CPUState *mon_cpu = NULL;

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void term_flush(void)
{
    if (term_outbuf_index > 0) {
        qemu_chr_write(monitor_hd, term_outbuf, term_outbuf_index);
        term_outbuf_index = 0;
    }
}

/* flush at every end of line or if the buffer is full */
void term_puts(const char *str)
{
    int c;
    for(;;) {
        c = *str++;
        if (c == '\0')
            break;
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        if (c == '\n')
            term_outbuf[term_outbuf_index++] = '\r';
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        term_outbuf[term_outbuf_index++] = c;
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        if (term_outbuf_index >= (sizeof(term_outbuf) - 1) ||
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            c == '\n')
            term_flush();
    }
}

void term_vprintf(const char *fmt, va_list ap)
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{
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    char buf[4096];
    vsnprintf(buf, sizeof(buf), fmt, ap);
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    term_puts(buf);
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}

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void term_printf(const char *fmt, ...)
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{
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    va_list ap;
    va_start(ap, fmt);
    term_vprintf(fmt, ap);
    va_end(ap);
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}

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void term_print_filename(const char *filename)
{
    int i;

    for (i = 0; filename[i]; i++) {
	switch (filename[i]) {
	case ' ':
	case '"':
	case '\\':
	    term_printf("\\%c", filename[i]);
	    break;
	case '\t':
	    term_printf("\\t");
	    break;
	case '\r':
	    term_printf("\\r");
	    break;
	case '\n':
	    term_printf("\\n");
	    break;
	default:
	    term_printf("%c", filename[i]);
	    break;
	}
    }
}

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static int monitor_fprintf(FILE *stream, const char *fmt, ...)
{
    va_list ap;
    va_start(ap, fmt);
    term_vprintf(fmt, ap);
    va_end(ap);
    return 0;
}

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static int compare_cmd(const char *name, const char *list)
{
    const char *p, *pstart;
    int len;
    len = strlen(name);
    p = list;
    for(;;) {
        pstart = p;
        p = strchr(p, '|');
        if (!p)
            p = pstart + strlen(pstart);
        if ((p - pstart) == len && !memcmp(pstart, name, len))
            return 1;
        if (*p == '\0')
            break;
        p++;
    }
    return 0;
}

static void help_cmd1(term_cmd_t *cmds, const char *prefix, const char *name)
{
    term_cmd_t *cmd;

    for(cmd = cmds; cmd->name != NULL; cmd++) {
        if (!name || !strcmp(name, cmd->name))
            term_printf("%s%s %s -- %s\n", prefix, cmd->name, cmd->params, cmd->help);
    }
}

static void help_cmd(const char *name)
{
    if (name && !strcmp(name, "info")) {
        help_cmd1(info_cmds, "info ", NULL);
    } else {
        help_cmd1(term_cmds, "", name);
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        if (name && !strcmp(name, "log")) {
            CPULogItem *item;
            term_printf("Log items (comma separated):\n");
            term_printf("%-10s %s\n", "none", "remove all logs");
            for(item = cpu_log_items; item->mask != 0; item++) {
                term_printf("%-10s %s\n", item->name, item->help);
            }
        }
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    }
}

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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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}

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static void do_commit(const char *device)
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{
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    int i, all_devices;
    
    all_devices = !strcmp(device, "all");
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    for (i = 0; i < MAX_DISKS; i++) {
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        if (bs_table[i]) {
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            if (all_devices || 
                !strcmp(bdrv_get_device_name(bs_table[i]), device))
                bdrv_commit(bs_table[i]);
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        }
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    }
}

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static void do_info(const char *item)
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{
    term_cmd_t *cmd;

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    if (!item)
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        goto help;
    for(cmd = info_cmds; cmd->name != NULL; cmd++) {
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        if (compare_cmd(item, cmd->name)) 
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            goto found;
    }
 help:
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    help_cmd("info");
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    return;
 found:
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    cmd->handler();
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}

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static void do_info_version(void)
{
  term_printf("%s\n", QEMU_VERSION);
}

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static void do_info_block(void)
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{
    bdrv_info();
}

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/* get the current CPU defined by the user */
int mon_set_cpu(int cpu_index)
{
    CPUState *env;

    for(env = first_cpu; env != NULL; env = env->next_cpu) {
        if (env->cpu_index == cpu_index) {
            mon_cpu = env;
            return 0;
        }
    }
    return -1;
}

CPUState *mon_get_cpu(void)
{
    if (!mon_cpu) {
        mon_set_cpu(0);
    }
    return mon_cpu;
}

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static void do_info_registers(void)
{
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    CPUState *env;
    env = mon_get_cpu();
    if (!env)
        return;
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#ifdef TARGET_I386
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    cpu_dump_state(env, NULL, monitor_fprintf,
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                   X86_DUMP_FPU);
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#else
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    cpu_dump_state(env, NULL, monitor_fprintf, 
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                   0);
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#endif
}

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static void do_info_cpus(void)
{
    CPUState *env;

    /* just to set the default cpu if not already done */
    mon_get_cpu();

    for(env = first_cpu; env != NULL; env = env->next_cpu) {
        term_printf("%c CPU #%d:", 
                    (env == mon_cpu) ? '*' : ' ',
                    env->cpu_index);
#if defined(TARGET_I386)
        term_printf(" pc=0x" TARGET_FMT_lx, env->eip + env->segs[R_CS].base);
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        if (env->hflags & HF_HALTED_MASK)
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            term_printf(" (halted)");
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#elif defined(TARGET_PPC)
        term_printf(" nip=0x" TARGET_FMT_lx, env->nip);
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        if (env->halted)
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            term_printf(" (halted)");
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#elif defined(TARGET_SPARC)
        term_printf(" pc=0x" TARGET_FMT_lx " npc=0x" TARGET_FMT_lx, env->pc, env->npc);
        if (env->halted)
            term_printf(" (halted)");
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#endif
        term_printf("\n");
    }
}

static void do_cpu_set(int index)
{
    if (mon_set_cpu(index) < 0)
        term_printf("Invalid CPU index\n");
}

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static void do_info_jit(void)
{
    dump_exec_info(NULL, monitor_fprintf);
}

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static void do_info_history (void)
{
    int i;
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    const char *str;
    
    i = 0;
    for(;;) {
        str = readline_get_history(i);
        if (!str)
            break;
	term_printf("%d: '%s'\n", i, str);
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        i++;
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    }
}

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static void do_quit(void)
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{
    exit(0);
}

static int eject_device(BlockDriverState *bs, int force)
{
    if (bdrv_is_inserted(bs)) {
        if (!force) {
            if (!bdrv_is_removable(bs)) {
                term_printf("device is not removable\n");
                return -1;
            }
            if (bdrv_is_locked(bs)) {
                term_printf("device is locked\n");
                return -1;
            }
        }
        bdrv_close(bs);
    }
    return 0;
}

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static void do_eject(int force, const char *filename)
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{
    BlockDriverState *bs;

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    bs = bdrv_find(filename);
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    if (!bs) {
        term_printf("device not found\n");
        return;
    }
    eject_device(bs, force);
}

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static void do_change(const char *device, const char *filename)
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{
    BlockDriverState *bs;
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    int i;
    char password[256];
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    bs = bdrv_find(device);
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    if (!bs) {
        term_printf("device not found\n");
        return;
    }
    if (eject_device(bs, 0) < 0)
        return;
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    bdrv_open(bs, filename, 0);
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    if (bdrv_is_encrypted(bs)) {
        term_printf("%s is encrypted.\n", device);
        for(i = 0; i < 3; i++) {
            monitor_readline("Password: ", 1, password, sizeof(password));
            if (bdrv_set_key(bs, password) == 0)
                break;
            term_printf("invalid password\n");
        }
    }
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}

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static void do_screen_dump(const char *filename)
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{
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    vga_hw_screen_dump(filename);
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}

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static void do_log(const char *items)
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{
    int mask;
    
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    if (!strcmp(items, "none")) {
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        mask = 0;
    } else {
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        mask = cpu_str_to_log_mask(items);
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        if (!mask) {
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            help_cmd("log");
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            return;
        }
    }
    cpu_set_log(mask);
}

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static void do_stop(void)
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{
    vm_stop(EXCP_INTERRUPT);
}

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static void do_cont(void)
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{
    vm_start();
}

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#ifdef CONFIG_GDBSTUB
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static void do_gdbserver(int has_port, int port)
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{
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    if (!has_port)
        port = DEFAULT_GDBSTUB_PORT;
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    if (gdbserver_start(port) < 0) {
        qemu_printf("Could not open gdbserver socket on port %d\n", port);
    } else {
        qemu_printf("Waiting gdb connection on port %d\n", port);
    }
}
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#endif
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static void term_printc(int c)
{
    term_printf("'");
    switch(c) {
    case '\'':
        term_printf("\\'");
        break;
    case '\\':
        term_printf("\\\\");
        break;
    case '\n':
        term_printf("\\n");
        break;
    case '\r':
        term_printf("\\r");
        break;
    default:
        if (c >= 32 && c <= 126) {
            term_printf("%c", c);
        } else {
            term_printf("\\x%02x", c);
        }
        break;
    }
    term_printf("'");
}

static void memory_dump(int count, int format, int wsize, 
                        target_ulong addr, int is_physical)
{
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    CPUState *env;
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    int nb_per_line, l, line_size, i, max_digits, len;
    uint8_t buf[16];
    uint64_t v;

    if (format == 'i') {
        int flags;
        flags = 0;
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        env = mon_get_cpu();
        if (!env && !is_physical)
            return;
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#ifdef TARGET_I386
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        if (wsize == 2) {
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            flags = 1;
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        } else if (wsize == 4) {
            flags = 0;
        } else {
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            /* as default we use the current CS size */
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            flags = 0;
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            if (env) {
#ifdef TARGET_X86_64
                if ((env->efer & MSR_EFER_LMA) && 
                    (env->segs[R_CS].flags & DESC_L_MASK))
                    flags = 2;
                else
#endif
                if (!(env->segs[R_CS].flags & DESC_B_MASK))
                    flags = 1;
            }
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        }
#endif
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        monitor_disas(env, addr, count, is_physical, flags);
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        return;
    }

    len = wsize * count;
    if (wsize == 1)
        line_size = 8;
    else
        line_size = 16;
    nb_per_line = line_size / wsize;
    max_digits = 0;

    switch(format) {
    case 'o':
        max_digits = (wsize * 8 + 2) / 3;
        break;
    default:
    case 'x':
        max_digits = (wsize * 8) / 4;
        break;
    case 'u':
    case 'd':
        max_digits = (wsize * 8 * 10 + 32) / 33;
        break;
    case 'c':
        wsize = 1;
        break;
    }

    while (len > 0) {
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        term_printf(TARGET_FMT_lx ":", addr);
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        l = len;
        if (l > line_size)
            l = line_size;
        if (is_physical) {
            cpu_physical_memory_rw(addr, buf, l, 0);
        } else {
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            env = mon_get_cpu();
            if (!env)
                break;
            cpu_memory_rw_debug(env, addr, buf, l, 0);
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        }
        i = 0; 
        while (i < l) {
            switch(wsize) {
            default:
            case 1:
                v = ldub_raw(buf + i);
                break;
            case 2:
                v = lduw_raw(buf + i);
                break;
            case 4:
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                v = (uint32_t)ldl_raw(buf + i);
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                break;
            case 8:
                v = ldq_raw(buf + i);
                break;
            }
            term_printf(" ");
            switch(format) {
            case 'o':
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                term_printf("%#*" PRIo64, max_digits, v);
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                break;
            case 'x':
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                term_printf("0x%0*" PRIx64, max_digits, v);
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                break;
            case 'u':
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                term_printf("%*" PRIu64, max_digits, v);
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                break;
            case 'd':
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                term_printf("%*" PRId64, max_digits, v);
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                break;
            case 'c':
                term_printc(v);
                break;
            }
            i += wsize;
        }
        term_printf("\n");
        addr += l;
        len -= l;
    }
}

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#if TARGET_LONG_BITS == 64
#define GET_TLONG(h, l) (((uint64_t)(h) << 32) | (l))
#else
#define GET_TLONG(h, l) (l)
#endif

static void do_memory_dump(int count, int format, int size, 
                           uint32_t addrh, uint32_t addrl)
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{
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    target_long addr = GET_TLONG(addrh, addrl);
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    memory_dump(count, format, size, addr, 0);
}

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static void do_physical_memory_dump(int count, int format, int size,
                                    uint32_t addrh, uint32_t addrl)

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{
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    target_long addr = GET_TLONG(addrh, addrl);
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    memory_dump(count, format, size, addr, 1);
}

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static void do_print(int count, int format, int size, unsigned int valh, unsigned int vall)
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{
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    target_long val = GET_TLONG(valh, vall);
#if TARGET_LONG_BITS == 32
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    switch(format) {
    case 'o':
        term_printf("%#o", val);
        break;
    case 'x':
        term_printf("%#x", val);
        break;
    case 'u':
        term_printf("%u", val);
        break;
    default:
    case 'd':
        term_printf("%d", val);
        break;
    case 'c':
        term_printc(val);
        break;
    }
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#else
    switch(format) {
    case 'o':
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        term_printf("%#" PRIo64, val);
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        break;
    case 'x':
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        term_printf("%#" PRIx64, val);
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        break;
    case 'u':
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        term_printf("%" PRIu64, val);
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        break;
    default:
    case 'd':
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        term_printf("%" PRId64, val);
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        break;
    case 'c':
        term_printc(val);
        break;
    }
#endif
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    term_printf("\n");
}

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static void do_memory_save(unsigned int valh, unsigned int vall, 
                           uint32_t size, const char *filename)
{
    FILE *f;
    target_long addr = GET_TLONG(valh, vall);
    uint32_t l;
    CPUState *env;
    uint8_t buf[1024];

    env = mon_get_cpu();
    if (!env)
        return;

    f = fopen(filename, "wb");
    if (!f) {
        term_printf("could not open '%s'\n", filename);
        return;
    }
    while (size != 0) {
        l = sizeof(buf);
        if (l > size)
            l = size;
        cpu_memory_rw_debug(env, addr, buf, l, 0);
        fwrite(buf, 1, l, f);
        addr += l;
        size -= l;
    }
    fclose(f);
}

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static void do_sum(uint32_t start, uint32_t size)
{
    uint32_t addr;
    uint8_t buf[1];
    uint16_t sum;

    sum = 0;
    for(addr = start; addr < (start + size); addr++) {
        cpu_physical_memory_rw(addr, buf, 1, 0);
        /* BSD sum algorithm ('sum' Unix command) */
        sum = (sum >> 1) | (sum << 15);
        sum += buf[0];
    }
    term_printf("%05d\n", sum);
}

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typedef struct {
    int keycode;
    const char *name;
} KeyDef;

static const KeyDef key_defs[] = {
    { 0x2a, "shift" },
    { 0x36, "shift_r" },
    
    { 0x38, "alt" },
    { 0xb8, "alt_r" },
    { 0x1d, "ctrl" },
    { 0x9d, "ctrl_r" },

    { 0xdd, "menu" },

    { 0x01, "esc" },

    { 0x02, "1" },
    { 0x03, "2" },
    { 0x04, "3" },
    { 0x05, "4" },
    { 0x06, "5" },
    { 0x07, "6" },
    { 0x08, "7" },
    { 0x09, "8" },
    { 0x0a, "9" },
    { 0x0b, "0" },
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    { 0x0c, "minus" },
    { 0x0d, "equal" },
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    { 0x0e, "backspace" },

    { 0x0f, "tab" },
    { 0x10, "q" },
    { 0x11, "w" },
    { 0x12, "e" },
    { 0x13, "r" },
    { 0x14, "t" },
    { 0x15, "y" },
    { 0x16, "u" },
    { 0x17, "i" },
    { 0x18, "o" },
    { 0x19, "p" },

    { 0x1c, "ret" },

    { 0x1e, "a" },
    { 0x1f, "s" },
    { 0x20, "d" },
    { 0x21, "f" },
    { 0x22, "g" },
    { 0x23, "h" },
    { 0x24, "j" },
    { 0x25, "k" },
    { 0x26, "l" },

    { 0x2c, "z" },
    { 0x2d, "x" },
    { 0x2e, "c" },
    { 0x2f, "v" },
    { 0x30, "b" },
    { 0x31, "n" },
    { 0x32, "m" },
    
    { 0x39, "spc" },
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    { 0x3a, "caps_lock" },
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    { 0x3b, "f1" },
    { 0x3c, "f2" },
    { 0x3d, "f3" },
    { 0x3e, "f4" },
    { 0x3f, "f5" },
    { 0x40, "f6" },
    { 0x41, "f7" },
    { 0x42, "f8" },
    { 0x43, "f9" },
    { 0x44, "f10" },
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    { 0x45, "num_lock" },
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    { 0x46, "scroll_lock" },

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    { 0xb5, "kp_divide" },
    { 0x37, "kp_multiply" },
    { 0x4a, "kp_substract" },
    { 0x4e, "kp_add" },
    { 0x9c, "kp_enter" },
    { 0x53, "kp_decimal" },

    { 0x52, "kp_0" },
    { 0x4f, "kp_1" },
    { 0x50, "kp_2" },
    { 0x51, "kp_3" },
    { 0x4b, "kp_4" },
    { 0x4c, "kp_5" },
    { 0x4d, "kp_6" },
    { 0x47, "kp_7" },
    { 0x48, "kp_8" },
    { 0x49, "kp_9" },
    
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    { 0x56, "<" },

    { 0x57, "f11" },
    { 0x58, "f12" },

    { 0xb7, "print" },

    { 0xc7, "home" },
    { 0xc9, "pgup" },
    { 0xd1, "pgdn" },
    { 0xcf, "end" },

    { 0xcb, "left" },
    { 0xc8, "up" },
    { 0xd0, "down" },
    { 0xcd, "right" },

    { 0xd2, "insert" },
    { 0xd3, "delete" },
    { 0, NULL },
};

static int get_keycode(const char *key)
{
    const KeyDef *p;
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    char *endp;
    int ret;
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    for(p = key_defs; p->name != NULL; p++) {
        if (!strcmp(key, p->name))
            return p->keycode;
    }
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    if (strstart(key, "0x", NULL)) {
        ret = strtoul(key, &endp, 0);
        if (*endp == '\0' && ret >= 0x01 && ret <= 0xff)
            return ret;
    }
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    return -1;
}

static void do_send_key(const char *string)
{
    char keybuf[16], *q;
    uint8_t keycodes[16];
    const char *p;
    int nb_keycodes, keycode, i;
    
    nb_keycodes = 0;
    p = string;
    while (*p != '\0') {
        q = keybuf;
        while (*p != '\0' && *p != '-') {
            if ((q - keybuf) < sizeof(keybuf) - 1) {
                *q++ = *p;
            }
            p++;
        }
        *q = '\0';
        keycode = get_keycode(keybuf);
        if (keycode < 0) {
            term_printf("unknown key: '%s'\n", keybuf);
            return;
        }
        keycodes[nb_keycodes++] = keycode;
        if (*p == '\0')
            break;
        p++;
    }
    /* key down events */
    for(i = 0; i < nb_keycodes; i++) {
        keycode = keycodes[i];
        if (keycode & 0x80)
            kbd_put_keycode(0xe0);
        kbd_put_keycode(keycode & 0x7f);
    }
    /* key up events */
    for(i = nb_keycodes - 1; i >= 0; i--) {
        keycode = keycodes[i];
        if (keycode & 0x80)
            kbd_put_keycode(0xe0);
        kbd_put_keycode(keycode | 0x80);
    }
}

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static int mouse_button_state;

static void do_mouse_move(const char *dx_str, const char *dy_str, 
                          const char *dz_str)
{
    int dx, dy, dz;
    dx = strtol(dx_str, NULL, 0);
    dy = strtol(dy_str, NULL, 0);
    dz = 0;
    if (dz_str) 
        dz = strtol(dz_str, NULL, 0);
    kbd_mouse_event(dx, dy, dz, mouse_button_state);
}

static void do_mouse_button(int button_state)
{
    mouse_button_state = button_state;
    kbd_mouse_event(0, 0, 0, mouse_button_state);
}

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static void do_ioport_read(int count, int format, int size, int addr, int has_index, int index)
{
    uint32_t val;
    int suffix;

    if (has_index) {
        cpu_outb(NULL, addr & 0xffff, index & 0xff);
        addr++;
    }
    addr &= 0xffff;

    switch(size) {
    default:
    case 1:
        val = cpu_inb(NULL, addr);
        suffix = 'b';
        break;
    case 2:
        val = cpu_inw(NULL, addr);
        suffix = 'w';
        break;
    case 4:
        val = cpu_inl(NULL, addr);
        suffix = 'l';
        break;
    }
    term_printf("port%c[0x%04x] = %#0*x\n",
                suffix, addr, size * 2, val);
}
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static void do_system_reset(void)
{
    qemu_system_reset_request();
}

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static void do_system_powerdown(void)
{
    qemu_system_powerdown_request();
}

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#if defined(TARGET_I386)
static void print_pte(uint32_t addr, uint32_t pte, uint32_t mask)
{
    term_printf("%08x: %08x %c%c%c%c%c%c%c%c\n", 
                addr,
                pte & mask,
                pte & PG_GLOBAL_MASK ? 'G' : '-',
                pte & PG_PSE_MASK ? 'P' : '-',
                pte & PG_DIRTY_MASK ? 'D' : '-',
                pte & PG_ACCESSED_MASK ? 'A' : '-',
                pte & PG_PCD_MASK ? 'C' : '-',
                pte & PG_PWT_MASK ? 'T' : '-',
                pte & PG_USER_MASK ? 'U' : '-',
                pte & PG_RW_MASK ? 'W' : '-');
}

static void tlb_info(void)
{
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    CPUState *env;
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    int l1, l2;
    uint32_t pgd, pde, pte;

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    env = mon_get_cpu();
    if (!env)
        return;

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    if (!(env->cr[0] & CR0_PG_MASK)) {
        term_printf("PG disabled\n");
        return;
    }
    pgd = env->cr[3] & ~0xfff;
    for(l1 = 0; l1 < 1024; l1++) {
        cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
        pde = le32_to_cpu(pde);
        if (pde & PG_PRESENT_MASK) {
            if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
                print_pte((l1 << 22), pde, ~((1 << 20) - 1));
            } else {
                for(l2 = 0; l2 < 1024; l2++) {
                    cpu_physical_memory_read((pde & ~0xfff) + l2 * 4, 
                                             (uint8_t *)&pte, 4);
                    pte = le32_to_cpu(pte);
                    if (pte & PG_PRESENT_MASK) {
                        print_pte((l1 << 22) + (l2 << 12), 
                                  pte & ~PG_PSE_MASK, 
                                  ~0xfff);
                    }
                }
            }
        }
    }
}

static void mem_print(uint32_t *pstart, int *plast_prot, 
                      uint32_t end, int prot)
{
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    int prot1;
    prot1 = *plast_prot;
    if (prot != prot1) {
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        if (*pstart != -1) {
            term_printf("%08x-%08x %08x %c%c%c\n",
                        *pstart, end, end - *pstart, 
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                        prot1 & PG_USER_MASK ? 'u' : '-',
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                        'r',
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                        prot1 & PG_RW_MASK ? 'w' : '-');
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        }
        if (prot != 0)
            *pstart = end;
        else
            *pstart = -1;
        *plast_prot = prot;
    }
}

static void mem_info(void)
{
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    CPUState *env;
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    int l1, l2, prot, last_prot;
    uint32_t pgd, pde, pte, start, end;

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    env = mon_get_cpu();
    if (!env)
        return;

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    if (!(env->cr[0] & CR0_PG_MASK)) {
        term_printf("PG disabled\n");
        return;
    }
    pgd = env->cr[3] & ~0xfff;
    last_prot = 0;
    start = -1;
    for(l1 = 0; l1 < 1024; l1++) {
        cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
        pde = le32_to_cpu(pde);
        end = l1 << 22;
        if (pde & PG_PRESENT_MASK) {
            if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
                prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
                mem_print(&start, &last_prot, end, prot);
            } else {
                for(l2 = 0; l2 < 1024; l2++) {
                    cpu_physical_memory_read((pde & ~0xfff) + l2 * 4, 
                                             (uint8_t *)&pte, 4);
                    pte = le32_to_cpu(pte);
                    end = (l1 << 22) + (l2 << 12);
                    if (pte & PG_PRESENT_MASK) {
                        prot = pte & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
                    } else {
                        prot = 0;
                    }
                    mem_print(&start, &last_prot, end, prot);
                }
            }
        } else {
            prot = 0;
            mem_print(&start, &last_prot, end, prot);
        }
    }
}
#endif

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static void do_info_kqemu(void)
{
#ifdef USE_KQEMU
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    CPUState *env;
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    int val;
    val = 0;
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    env = mon_get_cpu();
    if (!env) {
        term_printf("No cpu initialized yet");
        return;
    }
    val = env->kqemu_enabled;
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    term_printf("kqemu support: ");
    switch(val) {
    default:
    case 0:
        term_printf("disabled\n");
        break;
    case 1:
        term_printf("enabled for user code\n");
        break;
    case 2:
        term_printf("enabled for user and kernel code\n");
        break;
    }
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#else
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    term_printf("kqemu support: not compiled\n");
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#endif
} 

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#ifdef CONFIG_PROFILER

int64_t kqemu_time;
int64_t qemu_time;
int64_t kqemu_exec_count;
int64_t dev_time;
int64_t kqemu_ret_int_count;
int64_t kqemu_ret_excp_count;
int64_t kqemu_ret_intr_count;

static void do_info_profile(void)
{
    int64_t total;
    total = qemu_time;
    if (total == 0)
        total = 1;
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    term_printf("async time  %" PRId64 " (%0.3f)\n",
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                dev_time, dev_time / (double)ticks_per_sec);
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    term_printf("qemu time   %" PRId64 " (%0.3f)\n",
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                qemu_time, qemu_time / (double)ticks_per_sec);
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    term_printf("kqemu time  %" PRId64 " (%0.3f %0.1f%%) count=%" PRId64 " int=%" PRId64 " excp=%" PRId64 " intr=%" PRId64 "\n",
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                kqemu_time, kqemu_time / (double)ticks_per_sec,
                kqemu_time / (double)total * 100.0,
                kqemu_exec_count,
                kqemu_ret_int_count,
                kqemu_ret_excp_count,
                kqemu_ret_intr_count);
    qemu_time = 0;
    kqemu_time = 0;
    kqemu_exec_count = 0;
    dev_time = 0;
    kqemu_ret_int_count = 0;
    kqemu_ret_excp_count = 0;
    kqemu_ret_intr_count = 0;
#ifdef USE_KQEMU
    kqemu_record_dump();
#endif
}
#else
static void do_info_profile(void)
{
    term_printf("Internal profiler not compiled\n");
}
#endif

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/* Capture support */
static LIST_HEAD (capture_list_head, CaptureState) capture_head;

static void do_info_capture (void)
{
    int i;
    CaptureState *s;

    for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
        term_printf ("[%d]: ", i);
        s->ops.info (s->opaque);
    }
}

static void do_stop_capture (int n)
{
    int i;
    CaptureState *s;

    for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
        if (i == n) {
            s->ops.destroy (s->opaque);
            LIST_REMOVE (s, entries);
            qemu_free (s);
            return;
        }
    }
}

#ifdef HAS_AUDIO
int wav_start_capture (CaptureState *s, const char *path, int freq,
                       int bits, int nchannels);

static void do_wav_capture (const char *path,
                            int has_freq, int freq,
                            int has_bits, int bits,
                            int has_channels, int nchannels)
{
    CaptureState *s;

    s = qemu_mallocz (sizeof (*s));
    if (!s) {
        term_printf ("Not enough memory to add wave capture\n");
        return;
    }

    freq = has_freq ? freq : 44100;
    bits = has_bits ? bits : 16;
    nchannels = has_channels ? nchannels : 2;

    if (wav_start_capture (s, path, freq, bits, nchannels)) {
        term_printf ("Faied to add wave capture\n");
        qemu_free (s);
    }
    LIST_INSERT_HEAD (&capture_head, s, entries);
}
#endif

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static term_cmd_t term_cmds[] = {
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    { "help|?", "s?", do_help, 
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      "[cmd]", "show the help" },
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    { "commit", "s", do_commit, 
      "device|all", "commit changes to the disk images (if -snapshot is used) or backing files" },
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    { "info", "s?", do_info,
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      "subcommand", "show various information about the system state" },
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    { "q|quit", "", do_quit,
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      "", "quit the emulator" },
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    { "eject", "-fB", do_eject,
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      "[-f] device", "eject a removable media (use -f to force it)" },
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    { "change", "BF", do_change,
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      "device filename", "change a removable media" },
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    { "screendump", "F", do_screen_dump, 
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      "filename", "save screen into PPM image 'filename'" },
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    { "log", "s", do_log,
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      "item1[,...]", "activate logging of the specified items to '/tmp/qemu.log'" }, 
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    { "savevm", "s?", do_savevm,
      "tag|id", "save a VM snapshot. If no tag or id are provided, a new snapshot is created" }, 
    { "loadvm", "s", do_loadvm,
      "tag|id", "restore a VM snapshot from its tag or id" }, 
    { "delvm", "s", do_delvm,
      "tag|id", "delete a VM snapshot from its tag or id" }, 
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    { "stop", "", do_stop, 
      "", "stop emulation", },
    { "c|cont", "", do_cont, 
      "", "resume emulation", },
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#ifdef CONFIG_GDBSTUB
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    { "gdbserver", "i?", do_gdbserver, 
      "[port]", "start gdbserver session (default port=1234)", },
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#endif
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    { "x", "/l", do_memory_dump, 
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      "/fmt addr", "virtual memory dump starting at 'addr'", },
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    { "xp", "/l", do_physical_memory_dump, 
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      "/fmt addr", "physical memory dump starting at 'addr'", },
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    { "p|print", "/l", do_print, 
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      "/fmt expr", "print expression value (use $reg for CPU register access)", },
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    { "i", "/ii.", do_ioport_read, 
      "/fmt addr", "I/O port read" },

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    { "sendkey", "s", do_send_key, 
      "keys", "send keys to the VM (e.g. 'sendkey ctrl-alt-f1')" },
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    { "system_reset", "", do_system_reset, 
      "", "reset the system" },
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    { "system_powerdown", "", do_system_powerdown, 
      "", "send system power down event" },
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    { "sum", "ii", do_sum, 
      "addr size", "compute the checksum of a memory region" },
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    { "usb_add", "s", do_usb_add,
      "device", "add USB device (e.g. 'host:bus.addr' or 'host:vendor_id:product_id')" },
    { "usb_del", "s", do_usb_del,
      "device", "remove USB device 'bus.addr'" },
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    { "cpu", "i", do_cpu_set, 
      "index", "set the default CPU" },
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    { "mouse_move", "sss?", do_mouse_move, 
      "dx dy [dz]", "send mouse move events" },
    { "mouse_button", "i", do_mouse_button, 
      "state", "change mouse button state (1=L, 2=M, 4=R)" },
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    { "mouse_set", "i", do_mouse_set,
      "index", "set which mouse device receives events" },
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#ifdef HAS_AUDIO
    { "wavcapture", "si?i?i?", do_wav_capture,
      "path [frequency bits channels]",
      "capture audio to a wave file (default frequency=44100 bits=16 channels=2)" },
#endif
     { "stopcapture", "i", do_stop_capture,
       "capture index", "stop capture" },
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    { "memsave", "lis", do_memory_save, 
      "addr size file", "save to disk virtual memory dump starting at 'addr' of size 'size'", },
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    { NULL, NULL, }, 
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};

static term_cmd_t info_cmds[] = {
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    { "version", "", do_info_version,
      "", "show the version of qemu" },
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    { "network", "", do_info_network,
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      "", "show the network state" },