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monitor.c 67.4 KB
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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
 * 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:
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 *
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 * '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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#define MAX_MON 4
static CharDriverState *monitor_hd[MAX_MON];
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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)
{
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    int i;
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    if (term_outbuf_index > 0) {
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        for (i = 0; i < MAX_MON; i++)
            if (monitor_hd[i] && monitor_hd[i]->focus == 0)
                qemu_chr_write(monitor_hd[i], term_outbuf, term_outbuf_index);
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        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;
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    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 ||
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                !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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    if (mtd_bdrv)
        if (all_devices || !strcmp(bdrv_get_device_name(mtd_bdrv), device))
            bdrv_commit(mtd_bdrv);
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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;
    }
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    help_cmd("info");
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    return;
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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_name(void)
{
    if (qemu_name)
        term_printf("%s\n", qemu_name);
}
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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) {
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        term_printf("%c CPU #%d:",
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                    (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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#elif defined(TARGET_MIPS)
        term_printf(" PC=0x" TARGET_FMT_lx, env->PC[env->current_tc]);
        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;
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    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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#if defined(TARGET_PPC)
/* XXX: not implemented in other targets */
static void do_info_cpu_stats (void)
{
    CPUState *env;

    env = mon_get_cpu();
    cpu_dump_statistics(env, NULL, &monitor_fprintf, 0);
}
#endif
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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_block(const char *device, const char *filename)
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{
    BlockDriverState *bs;
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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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    qemu_key_check(bs, filename);
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}
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static void do_change_vnc(const char *target)
{
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    if (strcmp(target, "passwd") == 0 ||
	strcmp(target, "password") == 0) {
	char password[9];
	monitor_readline("Password: ", 1, password, sizeof(password)-1);
	password[sizeof(password)-1] = '\0';
	if (vnc_display_password(NULL, password) < 0)
	    term_printf("could not set VNC server password\n");
    } else {
	if (vnc_display_open(NULL, target) < 0)
	    term_printf("could not start VNC server on %s\n", target);
    }
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}

static void do_change(const char *device, const char *target)
{
    if (strcmp(device, "vnc") == 0) {
	do_change_vnc(target);
    } else {
	do_change_block(device, target);
    }
}
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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_logfile(const char *filename)
{
    cpu_set_log_filename(filename);
}
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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(const char *port)
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{
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    if (!port)
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        port = DEFAULT_GDBSTUB_PORT;
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    if (gdbserver_start(port) < 0) {
        qemu_printf("Could not open gdbserver socket on port '%s'\n", port);
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    } else {
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        qemu_printf("Waiting gdb connection on port '%s'\n", port);
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    }
}
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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("'");
}
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static void memory_dump(int count, int format, int wsize,
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                        target_phys_addr_t addr, int is_physical)
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{
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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
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                if ((env->efer & MSR_EFER_LMA) &&
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                    (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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        if (is_physical)
            term_printf(TARGET_FMT_plx ":", addr);
        else
            term_printf(TARGET_FMT_lx ":", (target_ulong)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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        }
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        i = 0;
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        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
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static void do_memory_dump(int count, int format, int size,
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                           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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#if TARGET_PHYS_ADDR_BITS > 32
#define GET_TPHYSADDR(h, l) (((uint64_t)(h) << 32) | (l))
#else
#define GET_TPHYSADDR(h, l) (l)
#endif
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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_phys_addr_t addr = GET_TPHYSADDR(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_phys_addr_t val = GET_TPHYSADDR(valh, vall);
#if TARGET_PHYS_ADDR_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,
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                           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" },
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    { 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" },
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    { 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" },
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    { 0x4a, "kp_subtract" },
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    { 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;
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    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;
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static void do_mouse_move(const char *dx_str, const char *dy_str,
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                          const char *dz_str)
{
    int dx, dy, dz;
    dx = strtol(dx_str, NULL, 0);
    dy = strtol(dy_str, NULL, 0);
    dz = 0;
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    if (dz_str)
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        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)
{
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    term_printf("%08x: %08x %c%c%c%c%c%c%c%c\n",
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                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++) {
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                    cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
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                                             (uint8_t *)&pte, 4);
                    pte = le32_to_cpu(pte);
                    if (pte & PG_PRESENT_MASK) {
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                        print_pte((l1 << 22) + (l2 << 12),
                                  pte & ~PG_PSE_MASK,
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                                  ~0xfff);
                    }
                }
            }
        }
    }
}
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static void mem_print(uint32_t *pstart, int *plast_prot,
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                      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",
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                        *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++) {
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                                             (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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}
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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
bellard authored
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static term_cmd_t term_cmds[] = {
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    { "help|?", "s?", do_help,
bellard authored
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      "[cmd]", "show the help" },
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    { "commit", "s", do_commit,
bellard authored
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      "device|all", "commit changes to the disk images (if -snapshot is used) or backing files" },
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    { "info", "s?", do_info,
bellard authored
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      "subcommand", "show various information about the system state" },
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    { "q|quit", "", do_quit,
bellard authored
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      "", "quit the emulator" },
bellard authored
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    { "eject", "-fB", do_eject,
ths authored
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      "[-f] device", "eject a removable medium (use -f to force it)" },
bellard authored
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    { "change", "BF", do_change,
ths authored
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      "device filename", "change a removable medium" },
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    { "screendump", "F", do_screen_dump,
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      "filename", "save screen into PPM image 'filename'" },
pbrook authored
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    { "logfile", "s", do_logfile,
      "filename", "output logs to 'filename'" },
1260
    { "log", "s", do_log,
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      "item1[,...]", "activate logging of the specified items to '/tmp/qemu.log'" },
bellard authored
1262
    { "savevm", "s?", do_savevm,
1263
      "tag|id", "save a VM snapshot. If no tag or id are provided, a new snapshot is created" },
bellard authored
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    { "loadvm", "s", do_loadvm,
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      "tag|id", "restore a VM snapshot from its tag or id" },
bellard authored
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    { "delvm", "s", do_delvm,
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      "tag|id", "delete a VM snapshot from its tag or id" },
    { "stop", "", do_stop,
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      "", "stop emulation", },
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    { "c|cont", "", do_cont,
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      "", "resume emulation", },
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#ifdef CONFIG_GDBSTUB
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    { "gdbserver", "s?", do_gdbserver,
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      "[port]", "start gdbserver session (default port=1234)", },
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#endif
1276
    { "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'", },
1280
    { "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,
bellard authored
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      "/fmt addr", "I/O port read" },
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    { "sendkey", "s", do_send_key,
bellard authored
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      "keys", "send keys to the VM (e.g. 'sendkey ctrl-alt-f1')" },
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    { "system_reset", "", do_system_reset,
bellard authored
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      "", "reset the system" },
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    { "system_powerdown", "", do_system_powerdown,
bellard authored
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      "", "send system power down event" },
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    { "sum", "ii", do_sum,
bellard authored
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      "addr size", "compute the checksum of a memory region" },
bellard authored
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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,
bellard authored
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      "index", "set the default CPU" },
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    { "mouse_move", "sss?", do_mouse_move,
bellard authored
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      "dx dy [dz]", "send mouse move events" },
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    { "mouse_button", "i", do_mouse_button,
bellard authored
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      "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,
bellard authored
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      "addr size file", "save to disk virtual memory dump starting at 'addr' of size 'size'", },
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    { NULL, NULL, },
bellard authored
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};

static term_cmd_t info_cmds[] = {
bellard authored
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    { "version", "", do_info_version,
      "", "show the version of qemu" },
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    { "network", "", do_info_network,
bellard authored
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      "", "show the network state" },
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    { "block", "", do_info_block,
bellard authored
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      "", "show the block devices" },
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    { "registers", "", do_info_registers,
      "", "show the cpu registers" },
bellard authored
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    { "cpus", "", do_info_cpus,
      "", "show infos for each CPU" },
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    { "history", "", do_info_history,
      "", "show the command line history", },
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    { "irq", "", irq_info,
      "", "show the interrupts statistics (if available)", },
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    { "pic", "", pic_info,
      "", "show i8259 (PIC) state", },
bellard authored
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    { "pci", "", pci_info,
      "", "show PCI info", },
bellard authored
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#if defined(TARGET_I386)
    { "tlb", "", tlb_info,
      "", "show virtual to physical memory mappings", },
    { "mem", "", mem_info,
      "", "show the active virtual memory mappings", },
#endif
bellard authored
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    { "jit", "", do_info_jit,
      "", "show dynamic compiler info", },
bellard authored
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    { "kqemu", "", do_info_kqemu,
      "", "show kqemu information", },
bellard authored
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    { "usb", "", usb_info,
      "", "show guest USB devices", },
    { "usbhost", "", usb_host_info,
      "", "show host USB devices", },
bellard authored
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    { "profile", "", do_info_profile,
      "", "show profiling information", },
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    { "capture", "", do_info_capture,
bellard authored
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      "", "show capture information" },
bellard authored
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    { "snapshots", "", do_info_snapshots,
bellard authored
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      "", "show the currently saved VM snapshots" },
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    { "pcmcia", "", pcmcia_info,
      "", "show guest PCMCIA status" },
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    { "mice", "", do_info_mice,
      "", "show which guest mouse is receiving events" },
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    { "vnc", "", do_info_vnc,
      "", "show the vnc server status"},
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    { "name", "", do_info_name,
      "", "show the current VM name" },
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#if defined(TARGET_PPC)
    { "cpustats", "", do_info_cpu_stats,
      "", "show CPU statistics", },
#endif
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    { NULL, NULL, },
};
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/*******************************************************************/

static const char *pch;
static jmp_buf expr_env;
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#define MD_TLONG 0
#define MD_I32   1
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typedef struct MonitorDef {
    const char *name;
    int offset;
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    target_long (*get_value)(struct MonitorDef *md, int val);
    int type;
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} MonitorDef;
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#if defined(TARGET_I386)
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static target_long monitor_get_pc (struct MonitorDef *md, int val)
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{
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    CPUState *env = mon_get_cpu();
    if (!env)
        return 0;
    return env->eip + env->segs[R_CS].base;
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}
#endif
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#if defined(TARGET_PPC)
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static target_long monitor_get_ccr (struct MonitorDef *md, int val)
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{
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    CPUState *env = mon_get_cpu();
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    unsigned int u;
    int i;
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    if (!env)
        return 0;
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    u = 0;
    for (i = 0; i < 8; i++)
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	u |= env->crf[i] << (32 - (4 * i));
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    return u;
}
bellard authored
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static target_long monitor_get_msr (struct MonitorDef *md, int val)
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{
bellard authored
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    CPUState *env = mon_get_cpu();
    if (!env)
        return 0;
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    return env->msr;
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}
bellard authored
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static target_long monitor_get_xer (struct MonitorDef *md, int val)
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{
bellard authored
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    CPUState *env = mon_get_cpu();
    if (!env)
        return 0;
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    return ppc_load_xer(env);
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}
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static target_long monitor_get_decr (struct MonitorDef *md, int val)
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{
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    CPUState *env = mon_get_cpu();
    if (!env)
        return 0;
    return cpu_ppc_load_decr(env);
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}
bellard authored
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static target_long monitor_get_tbu (struct MonitorDef *md, int val)
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{
bellard authored
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    CPUState *env = mon_get_cpu();
    if (!env)
        return 0;
    return cpu_ppc_load_tbu(env);
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}
bellard authored
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static target_long monitor_get_tbl (struct MonitorDef *md, int val)
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{
bellard authored
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    CPUState *env = mon_get_cpu();
    if (!env)
        return 0;
    return cpu_ppc_load_tbl(env);
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}
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#endif
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#if defined(TARGET_SPARC)
bellard authored
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#ifndef TARGET_SPARC64
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static target_long monitor_get_psr (struct MonitorDef *md, int val)
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{
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    CPUState *env = mon_get_cpu();
    if (!env)
        return 0;
    return GET_PSR(env);
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}
bellard authored
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#endif
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static target_long monitor_get_reg(struct MonitorDef *md, int val)
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{
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    CPUState *env = mon_get_cpu();
    if (!env)
        return 0;
    return env->regwptr[val];
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}
#endif
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static MonitorDef monitor_defs[] = {
#ifdef TARGET_I386
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#define SEG(name, seg) \
bellard authored
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    { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
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    { name ".base", offsetof(CPUState, segs[seg].base) },\
bellard authored
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    { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },
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    { "eax", offsetof(CPUState, regs[0]) },
    { "ecx", offsetof(CPUState, regs[1]) },
    { "edx", offsetof(CPUState, regs[2]) },
    { "ebx", offsetof(CPUState, regs[3]) },
    { "esp|sp", offsetof(CPUState, regs[4]) },
    { "ebp|fp", offsetof(CPUState, regs[5]) },
    { "esi", offsetof(CPUState, regs[6]) },
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    { "edi", offsetof(CPUState, regs[7]) },
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#ifdef TARGET_X86_64
    { "r8", offsetof(CPUState, regs[8]) },
    { "r9", offsetof(CPUState, regs[9]) },
    { "r10", offsetof(CPUState, regs[10]) },
    { "r11", offsetof(CPUState, regs[11]) },
    { "r12", offsetof(CPUState, regs[12]) },
    { "r13", offsetof(CPUState, regs[13]) },
    { "r14", offsetof(CPUState, regs[14]) },
    { "r15", offsetof(CPUState, regs[15]) },
#endif
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    { "eflags", offsetof(CPUState, eflags) },
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    { "eip", offsetof(CPUState, eip) },
    SEG("cs", R_CS)
    SEG("ds", R_DS)
    SEG("es", R_ES)
bellard authored
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    SEG("ss", R_SS)
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    SEG("fs", R_FS)
    SEG("gs", R_GS)
    { "pc", 0, monitor_get_pc, },
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#elif defined(TARGET_PPC)
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    /* General purpose registers */
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    { "r0", offsetof(CPUState, gpr[0]) },
    { "r1", offsetof(CPUState, gpr[1]) },
    { "r2", offsetof(CPUState, gpr[2]) },
    { "r3", offsetof(CPUState, gpr[3]) },
    { "r4", offsetof(CPUState, gpr[4]) },
    { "r5", offsetof(CPUState, gpr[5]) },
    { "r6", offsetof(CPUState, gpr[6]) },
    { "r7", offsetof(CPUState, gpr[7]) },
    { "r8", offsetof(CPUState, gpr[8]) },
    { "r9", offsetof(CPUState, gpr[9]) },
    { "r10", offsetof(CPUState, gpr[10]) },
    { "r11", offsetof(CPUState, gpr[11]) },
    { "r12", offsetof(CPUState, gpr[12]) },
    { "r13", offsetof(CPUState, gpr[13]) },
    { "r14", offsetof(CPUState, gpr[14]) },
    { "r15", offsetof(CPUState, gpr[15]) },
    { "r16", offsetof(CPUState, gpr[16]) },
    { "r17", offsetof(CPUState, gpr[17]) },
    { "r18", offsetof(CPUState, gpr[18]) },
    { "r19", offsetof(CPUState, gpr[19]) },
    { "r20", offsetof(CPUState, gpr[20]) },
    { "r21", offsetof(CPUState, gpr[21]) },
    { "r22", offsetof(CPUState, gpr[22]) },
    { "r23", offsetof(CPUState, gpr[23]) },
    { "r24", offsetof(CPUState, gpr[24]) },
    { "r25", offsetof(CPUState, gpr[25]) },
    { "r26", offsetof(CPUState, gpr[26]) },
    { "r27", offsetof(CPUState, gpr[27]) },
    { "r28", offsetof(CPUState, gpr[28]) },
    { "r29", offsetof(CPUState, gpr[29]) },
    { "r30", offsetof(CPUState, gpr[30]) },
    { "r31", offsetof(CPUState, gpr[31]) },
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    /* Floating point registers */
    { "f0", offsetof(CPUState, fpr[0]) },
    { "f1", offsetof(CPUState, fpr[1]) },
    { "f2", offsetof(CPUState, fpr[2]) },
    { "f3", offsetof(CPUState, fpr[3]) },
    { "f4", offsetof(CPUState, fpr[4]) },
    { "f5", offsetof(CPUState, fpr[5]) },
    { "f6", offsetof(CPUState, fpr[6]) },
    { "f7", offsetof(CPUState, fpr[7]) },
    { "f8", offsetof(CPUState, fpr[8]) },
    { "f9", offsetof(CPUState, fpr[9]) },
    { "f10", offsetof(CPUState, fpr[10]) },
    { "f11", offsetof(CPUState, fpr[11]) },
    { "f12", offsetof(CPUState, fpr[12]) },
    { "f13", offsetof(CPUState, fpr[13]) },
    { "f14", offsetof(CPUState, fpr[14]) },
    { "f15", offsetof(CPUState, fpr[15]) },
    { "f16", offsetof(CPUState, fpr[16]) },
    { "f17", offsetof(CPUState, fpr[17]) },
    { "f18", offsetof(CPUState, fpr[18]) },
    { "f19", offsetof(CPUState, fpr[19]) },
    { "f20", offsetof(CPUState, fpr[20]) },
    { "f21", offsetof(CPUState, fpr[21]) },
    { "f22", offsetof(CPUState, fpr[22]) },
    { "f23", offsetof(CPUState, fpr[23]) },
    { "f24", offsetof(CPUState, fpr[24]) },
    { "f25", offsetof(CPUState, fpr[25]) },
    { "f26", offsetof(CPUState, fpr[26]) },
    { "f27", offsetof(CPUState, fpr[27]) },
    { "f28", offsetof(CPUState, fpr[28]) },
    { "f29", offsetof(CPUState, fpr[29]) },
    { "f30", offsetof(CPUState, fpr[30]) },
    { "f31", offsetof(CPUState, fpr[31]) },
    { "fpscr", offsetof(CPUState, fpscr) },
    /* Next instruction pointer */
1578
    { "nip|pc", offsetof(CPUState, nip) },
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1580
    { "lr", offsetof(CPUState, lr) },
    { "ctr", offsetof(CPUState, ctr) },
1581
    { "decr", 0, &monitor_get_decr, },
1582
    { "ccr", 0, &monitor_get_ccr, },
1583
    /* Machine state register */
1584
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    { "msr", 0, &monitor_get_msr, },
    { "xer", 0, &monitor_get_xer, },
1586
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    { "tbu", 0, &monitor_get_tbu, },
    { "tbl", 0, &monitor_get_tbl, },
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#if defined(TARGET_PPC64)
    /* Address space register */
    { "asr", offsetof(CPUState, asr) },
#endif
    /* Segment registers */
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    { "sdr1", offsetof(CPUState, sdr1) },
    { "sr0", offsetof(CPUState, sr[0]) },
    { "sr1", offsetof(CPUState, sr[1]) },
    { "sr2", offsetof(CPUState, sr[2]) },
    { "sr3", offsetof(CPUState, sr[3]) },
    { "sr4", offsetof(CPUState, sr[4]) },
    { "sr5", offsetof(CPUState, sr[5]) },
    { "sr6", offsetof(CPUState, sr[6]) },
    { "sr7", offsetof(CPUState, sr[7]) },
    { "sr8", offsetof(CPUState, sr[8]) },
    { "sr9", offsetof(CPUState, sr[9]) },
    { "sr10", offsetof(CPUState, sr[10]) },
    { "sr11", offsetof(CPUState, sr[11]) },
    { "sr12", offsetof(CPUState, sr[12]) },
    { "sr13", offsetof(CPUState, sr[13]) },
    { "sr14", offsetof(CPUState, sr[14]) },
    { "sr15", offsetof(CPUState, sr[15]) },
    /* Too lazy to put BATs and SPRs ... */
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#elif defined(TARGET_SPARC)
    { "g0", offsetof(CPUState, gregs[0]) },
    { "g1", offsetof(CPUState, gregs[1]) },
    { "g2", offsetof(CPUState, gregs[2]) },
    { "g3", offsetof(CPUState, gregs[3]) },
    { "g4", offsetof(CPUState, gregs[4]) },
    { "g5", offsetof(CPUState, gregs[5]) },
    { "g6", offsetof(CPUState, gregs[6]) },
    { "g7", offsetof(CPUState, gregs[7]) },
    { "o0", 0, monitor_get_reg },
    { "o1", 1, monitor_get_reg },
    { "o2", 2, monitor_get_reg },
    { "o3", 3, monitor_get_reg },
    { "o4", 4, monitor_get_reg },
    { "o5", 5, monitor_get_reg },
    { "o6", 6, monitor_get_reg },
    { "o7", 7, monitor_get_reg },
    { "l0", 8, monitor_get_reg },
    { "l1", 9, monitor_get_reg },
    { "l2", 10, monitor_get_reg },
    { "l3", 11, monitor_get_reg },
    { "l4", 12, monitor_get_reg },
    { "l5", 13, monitor_get_reg },
    { "l6", 14, monitor_get_reg },
    { "l7", 15, monitor_get_reg },
    { "i0", 16, monitor_get_reg },
    { "i1", 17, monitor_get_reg },
    { "i2", 18, monitor_get_reg },
    { "i3", 19, monitor_get_reg },
    { "i4", 20, monitor_get_reg },
    { "i5", 21, monitor_get_reg },
    { "i6", 22, monitor_get_reg },
    { "i7", 23, monitor_get_reg },
    { "pc", offsetof(CPUState, pc) },
    { "npc", offsetof(CPUState, npc) },
    { "y", offsetof(CPUState, y) },
bellard authored
1647
#ifndef TARGET_SPARC64
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    { "psr", 0, &monitor_get_psr, },
    { "wim", offsetof(CPUState, wim) },
bellard authored
1650
#endif
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    { "tbr", offsetof(CPUState, tbr) },
    { "fsr", offsetof(CPUState, fsr) },
    { "f0", offsetof(CPUState, fpr[0]) },
    { "f1", offsetof(CPUState, fpr[1]) },
    { "f2", offsetof(CPUState, fpr[2]) },
    { "f3", offsetof(CPUState, fpr[3]) },
    { "f4", offsetof(CPUState, fpr[4]) },
    { "f5", offsetof(CPUState, fpr[5]) },
    { "f6", offsetof(CPUState, fpr[6]) },
    { "f7", offsetof(CPUState, fpr[7]) },
    { "f8", offsetof(CPUState, fpr[8]) },
    { "f9", offsetof(CPUState, fpr[9]) },
    { "f10", offsetof(CPUState, fpr[10]) },
    { "f11", offsetof(CPUState, fpr[11]) },
    { "f12", offsetof(CPUState, fpr[12]) },
    { "f13", offsetof(CPUState, fpr[13]) },
    { "f14", offsetof(CPUState, fpr[14]) },
    { "f15", offsetof(CPUState, fpr[15]) },
    { "f16", offsetof(CPUState, fpr[16]) },
    { "f17", offsetof(CPUState, fpr[17]) },
    { "f18", offsetof(CPUState, fpr[18]) },
    { "f19", offsetof(CPUState, fpr[19]) },
    { "f20", offsetof(CPUState, fpr[20]) },
    { "f21", offsetof(CPUState, fpr[21]) },
    { "f22", offsetof(CPUState, fpr[22]) },
    { "f23", offsetof(CPUState, fpr[23]) },
    { "f24", offsetof(CPUState, fpr[24]) },
    { "f25", offsetof(CPUState, fpr[25]) },
    { "f26", offsetof(CPUState, fpr[26]) },
    { "f27", offsetof(CPUState, fpr[27]) },
    { "f28", offsetof(CPUState, fpr[28]) },
    { "f29", offsetof(CPUState, fpr[29]) },
    { "f30", offsetof(CPUState, fpr[30]) },
    { "f31", offsetof(CPUState, fpr[31]) },
bellard authored
1685
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1702
1703
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1706
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1710
#ifdef TARGET_SPARC64
    { "f32", offsetof(CPUState, fpr[32]) },
    { "f34", offsetof(CPUState, fpr[34]) },
    { "f36", offsetof(CPUState, fpr[36]) },
    { "f38", offsetof(CPUState, fpr[38]) },
    { "f40", offsetof(CPUState, fpr[40]) },
    { "f42", offsetof(CPUState, fpr[42]) },
    { "f44", offsetof(CPUState, fpr[44]) },
    { "f46", offsetof(CPUState, fpr[46]) },
    { "f48", offsetof(CPUState, fpr[48]) },
    { "f50", offsetof(CPUState, fpr[50]) },
    { "f52", offsetof(CPUState, fpr[52]) },
    { "f54", offsetof(CPUState, fpr[54]) },
    { "f56", offsetof(CPUState, fpr[56]) },
    { "f58", offsetof(CPUState, fpr[58]) },
    { "f60", offsetof(CPUState, fpr[60]) },
    { "f62", offsetof(CPUState, fpr[62]) },
    { "asi", offsetof(CPUState, asi) },
    { "pstate", offsetof(CPUState, pstate) },
    { "cansave", offsetof(CPUState, cansave) },
    { "canrestore", offsetof(CPUState, canrestore) },
    { "otherwin", offsetof(CPUState, otherwin) },
    { "wstate", offsetof(CPUState, wstate) },
    { "cleanwin", offsetof(CPUState, cleanwin) },
    { "fprs", offsetof(CPUState, fprs) },
#endif
1711
1712
1713
1714
#endif
    { NULL },
};
1715
static void expr_error(const char *fmt)
bellard authored
1716
{
1717
1718
1719
1720
1721
    term_printf(fmt);
    term_printf("\n");
    longjmp(expr_env, 1);
}
bellard authored
1722
/* return 0 if OK, -1 if not found, -2 if no CPU defined */
bellard authored
1723
static int get_monitor_def(target_long *pval, const char *name)
1724
1725
{
    MonitorDef *md;
bellard authored
1726
1727
    void *ptr;
1728
1729
1730
    for(md = monitor_defs; md->name != NULL; md++) {
        if (compare_cmd(name, md->name)) {
            if (md->get_value) {
1731
                *pval = md->get_value(md, md->offset);
1732
            } else {
bellard authored
1733
1734
1735
1736
                CPUState *env = mon_get_cpu();
                if (!env)
                    return -2;
                ptr = (uint8_t *)env + md->offset;
bellard authored
1737
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1741
1742
1743
1744
1745
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1747
                switch(md->type) {
                case MD_I32:
                    *pval = *(int32_t *)ptr;
                    break;
                case MD_TLONG:
                    *pval = *(target_long *)ptr;
                    break;
                default:
                    *pval = 0;
                    break;
                }
1748
1749
1750
1751
1752
1753
1754
1755
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1757
1758
1759
1760
1761
1762
1763
            }
            return 0;
        }
    }
    return -1;
}

static void next(void)
{
    if (pch != '\0') {
        pch++;
        while (isspace(*pch))
            pch++;
    }
}
blueswir1 authored
1764
static int64_t expr_sum(void);
1765
blueswir1 authored
1766
static int64_t expr_unary(void)
1767
{
blueswir1 authored
1768
    int64_t n;
1769
    char *p;
bellard authored
1770
    int ret;
1771
1772
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1781
1782
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1785
1786
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1789
1790
1791
1792

    switch(*pch) {
    case '+':
        next();
        n = expr_unary();
        break;
    case '-':
        next();
        n = -expr_unary();
        break;
    case '~':
        next();
        n = ~expr_unary();
        break;
    case '(':
        next();
        n = expr_sum();
        if (*pch != ')') {
            expr_error("')' expected");
        }
        next();
        break;
bellard authored
1793
1794
1795
1796
1797
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1799
1800
1801
1802
    case '\'':
        pch++;
        if (*pch == '\0')
            expr_error("character constant expected");
        n = *pch;
        pch++;
        if (*pch != '\'')
            expr_error("missing terminating \' character");
        next();
        break;
1803
1804
1805
    case '$':
        {
            char buf[128], *q;
1806
            target_long reg;
1807
1808
1809
1810
1811
1812
            pch++;
            q = buf;
            while ((*pch >= 'a' && *pch <= 'z') ||
                   (*pch >= 'A' && *pch <= 'Z') ||
                   (*pch >= '0' && *pch <= '9') ||
1813
                   *pch == '_' || *pch == '.') {
1814
1815
1816
1817
1818
1819
1820
                if ((q - buf) < sizeof(buf) - 1)
                    *q++ = *pch;
                pch++;
            }
            while (isspace(*pch))
                pch++;
            *q = 0;
1821
            ret = get_monitor_def(&reg, buf);
bellard authored
1822
            if (ret == -1)
1823
                expr_error("unknown register");
1824
            else if (ret == -2)
bellard authored
1825
                expr_error("no cpu defined");
1826
            n = reg;
1827
1828
1829
1830
1831
1832
1833
        }
        break;
    case '\0':
        expr_error("unexpected end of expression");
        n = 0;
        break;
    default:
1834
#if TARGET_PHYS_ADDR_BITS > 32
bellard authored
1835
1836
        n = strtoull(pch, &p, 0);
#else
1837
        n = strtoul(pch, &p, 0);
bellard authored
1838
#endif
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
        if (pch == p) {
            expr_error("invalid char in expression");
        }
        pch = p;
        while (isspace(*pch))
            pch++;
        break;
    }
    return n;
}
blueswir1 authored
1851
static int64_t expr_prod(void)
1852
{
blueswir1 authored
1853
    int64_t val, val2;
bellard authored
1854
    int op;
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
    val = expr_unary();
    for(;;) {
        op = *pch;
        if (op != '*' && op != '/' && op != '%')
            break;
        next();
        val2 = expr_unary();
        switch(op) {
        default:
        case '*':
            val *= val2;
            break;
        case '/':
        case '%':
1870
            if (val2 == 0)
bellard authored
1871
                expr_error("division by zero");
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
            if (op == '/')
                val /= val2;
            else
                val %= val2;
            break;
        }
    }
    return val;
}
blueswir1 authored
1882
static int64_t expr_logic(void)
1883
{
blueswir1 authored
1884
    int64_t val, val2;
bellard authored
1885
    int op;
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909

    val = expr_prod();
    for(;;) {
        op = *pch;
        if (op != '&' && op != '|' && op != '^')
            break;
        next();
        val2 = expr_prod();
        switch(op) {
        default:
        case '&':
            val &= val2;
            break;
        case '|':
            val |= val2;
            break;
        case '^':
            val ^= val2;
            break;
        }
    }
    return val;
}
blueswir1 authored
1910
static int64_t expr_sum(void)
1911
{
blueswir1 authored
1912
    int64_t val, val2;
bellard authored
1913
    int op;
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929

    val = expr_logic();
    for(;;) {
        op = *pch;
        if (op != '+' && op != '-')
            break;
        next();
        val2 = expr_logic();
        if (op == '+')
            val += val2;
        else
            val -= val2;
    }
    return val;
}
blueswir1 authored
1930
static int get_expr(int64_t *pval, const char **pp)
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
{
    pch = *pp;
    if (setjmp(expr_env)) {
        *pp = pch;
        return -1;
    }
    while (isspace(*pch))
        pch++;
    *pval = expr_sum();
    *pp = pch;
    return 0;
}

static int get_str(char *buf, int buf_size, const char **pp)
{
    const char *p;
    char *q;
    int c;
bellard authored
1950
    q = buf;
1951
1952
1953
1954
1955
    p = *pp;
    while (isspace(*p))
        p++;
    if (*p == '\0') {
    fail:
bellard authored
1956
        *q = '\0';
1957
1958
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1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
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1987
1988
1989
1990
1991
        *pp = p;
        return -1;
    }
    if (*p == '\"') {
        p++;
        while (*p != '\0' && *p != '\"') {
            if (*p == '\\') {
                p++;
                c = *p++;
                switch(c) {
                case 'n':
                    c = '\n';
                    break;
                case 'r':
                    c = '\r';
                    break;
                case '\\':
                case '\'':
                case '\"':
                    break;
                default:
                    qemu_printf("unsupported escape code: '\\%c'\n", c);
                    goto fail;
                }
                if ((q - buf) < buf_size - 1) {
                    *q++ = c;
                }
            } else {
                if ((q - buf) < buf_size - 1) {
                    *q++ = *p;
                }
                p++;
            }
        }
        if (*p != '\"') {
bellard authored
1992
            qemu_printf("unterminated string\n");
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
            goto fail;
        }
        p++;
    } else {
        while (*p != '\0' && !isspace(*p)) {
            if ((q - buf) < buf_size - 1) {
                *q++ = *p;
            }
            p++;
        }
    }
bellard authored
2004
    *q = '\0';
2005
2006
2007
2008
2009
2010
2011
2012
2013
    *pp = p;
    return 0;
}

static int default_fmt_format = 'x';
static int default_fmt_size = 4;

#define MAX_ARGS 16
2014
static void monitor_handle_command(const char *cmdline)
2015
2016
2017
2018
{
    const char *p, *pstart, *typestr;
    char *q;
    int c, nb_args, len, i, has_arg;
bellard authored
2019
    term_cmd_t *cmd;
2020
2021
2022
2023
    char cmdname[256];
    char buf[1024];
    void *str_allocated[MAX_ARGS];
    void *args[MAX_ARGS];
bellard authored
2024
2025
2026
2027

#ifdef DEBUG
    term_printf("command='%s'\n", cmdline);
#endif
2028
2029
    /* extract the command name */
bellard authored
2030
    p = cmdline;
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
    q = cmdname;
    while (isspace(*p))
        p++;
    if (*p == '\0')
        return;
    pstart = p;
    while (*p != '\0' && *p != '/' && !isspace(*p))
        p++;
    len = p - pstart;
    if (len > sizeof(cmdname) - 1)
        len = sizeof(cmdname) - 1;
    memcpy(cmdname, pstart, len);
    cmdname[len] = '\0';
2044
2045
2046
    /* find the command */
    for(cmd = term_cmds; cmd->name != NULL; cmd++) {
2047
        if (compare_cmd(cmdname, cmd->name))
2048
2049
2050
2051
2052
2053
2054
2055
            goto found;
    }
    term_printf("unknown command: '%s'\n", cmdname);
    return;
 found:

    for(i = 0; i < MAX_ARGS; i++)
        str_allocated[i] = NULL;
2056
2057
2058
2059
    /* parse the parameters */
    typestr = cmd->args_type;
    nb_args = 0;
bellard authored
2060
    for(;;) {
2061
2062
        c = *typestr;
        if (c == '\0')
bellard authored
2063
            break;
2064
2065
2066
        typestr++;
        switch(c) {
        case 'F':
bellard authored
2067
        case 'B':
2068
2069
2070
2071
        case 's':
            {
                int ret;
                char *str;
2072
2073
                while (isspace(*p))
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
                    p++;
                if (*typestr == '?') {
                    typestr++;
                    if (*p == '\0') {
                        /* no optional string: NULL argument */
                        str = NULL;
                        goto add_str;
                    }
                }
                ret = get_str(buf, sizeof(buf), &p);
                if (ret < 0) {
bellard authored
2085
2086
                    switch(c) {
                    case 'F':
2087
                        term_printf("%s: filename expected\n", cmdname);
bellard authored
2088
2089
2090
2091
2092
                        break;
                    case 'B':
                        term_printf("%s: block device name expected\n", cmdname);
                        break;
                    default:
2093
                        term_printf("%s: string expected\n", cmdname);
bellard authored
2094
2095
                        break;
                    }
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
                    goto fail;
                }
                str = qemu_malloc(strlen(buf) + 1);
                strcpy(str, buf);
                str_allocated[nb_args] = str;
            add_str:
                if (nb_args >= MAX_ARGS) {
                error_args:
                    term_printf("%s: too many arguments\n", cmdname);
                    goto fail;
                }
                args[nb_args++] = str;
            }
bellard authored
2109
            break;
2110
2111
2112
        case '/':
            {
                int count, format, size;
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
                while (isspace(*p))
                    p++;
                if (*p == '/') {
                    /* format found */
                    p++;
                    count = 1;
                    if (isdigit(*p)) {
                        count = 0;
                        while (isdigit(*p)) {
                            count = count * 10 + (*p - '0');
                            p++;
                        }
                    }
                    size = -1;
                    format = -1;
                    for(;;) {
                        switch(*p) {
                        case 'o':
                        case 'd':
                        case 'u':
                        case 'x':
                        case 'i':
                        case 'c':
                            format = *p++;
                            break;
                        case 'b':
                            size = 1;
                            p++;
                            break;
                        case 'h':
                            size = 2;
                            p++;
                            break;
                        case 'w':
                            size = 4;
                            p++;
                            break;
                        case 'g':
                        case 'L':
                            size = 8;
                            p++;
                            break;
                        default:
                            goto next;
                        }
                    }
                next:
                    if (*p != '\0' && !isspace(*p)) {
                        term_printf("invalid char in format: '%c'\n", *p);
                        goto fail;
                    }
                    if (format < 0)
                        format = default_fmt_format;
2167
2168
2169
2170
2171
                    if (format != 'i') {
                        /* for 'i', not specifying a size gives -1 as size */
                        if (size < 0)
                            size = default_fmt_size;
                    }
2172
2173
2174
2175
2176
                    default_fmt_size = size;
                    default_fmt_format = format;
                } else {
                    count = 1;
                    format = default_fmt_format;
2177
2178
2179
2180
2181
                    if (format != 'i') {
                        size = default_fmt_size;
                    } else {
                        size = -1;
                    }
2182
2183
2184
                }
                if (nb_args + 3 > MAX_ARGS)
                    goto error_args;
2185
2186
2187
                args[nb_args++] = (void*)(long)count;
                args[nb_args++] = (void*)(long)format;
                args[nb_args++] = (void*)(long)size;
2188
            }
bellard authored
2189
            break;
2190
        case 'i':
bellard authored
2191
        case 'l':
2192
            {
blueswir1 authored
2193
                int64_t val;
2194
2195
                while (isspace(*p))
2196
                    p++;
bellard authored
2197
2198
2199
2200
2201
2202
2203
2204
2205
                if (*typestr == '?' || *typestr == '.') {
                    if (*typestr == '?') {
                        if (*p == '\0')
                            has_arg = 0;
                        else
                            has_arg = 1;
                    } else {
                        if (*p == '.') {
                            p++;
2206
                            while (isspace(*p))
bellard authored
2207
2208
2209
2210
2211
2212
                                p++;
                            has_arg = 1;
                        } else {
                            has_arg = 0;
                        }
                    }
bellard authored
2213
                    typestr++;
2214
2215
                    if (nb_args >= MAX_ARGS)
                        goto error_args;
2216
                    args[nb_args++] = (void *)(long)has_arg;
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
                    if (!has_arg) {
                        if (nb_args >= MAX_ARGS)
                            goto error_args;
                        val = -1;
                        goto add_num;
                    }
                }
                if (get_expr(&val, &p))
                    goto fail;
            add_num:
bellard authored
2227
2228
2229
                if (c == 'i') {
                    if (nb_args >= MAX_ARGS)
                        goto error_args;
2230
                    args[nb_args++] = (void *)(long)val;
bellard authored
2231
2232
2233
                } else {
                    if ((nb_args + 1) >= MAX_ARGS)
                        goto error_args;
2234
#if TARGET_PHYS_ADDR_BITS > 32
2235
                    args[nb_args++] = (void *)(long)((val >> 32) & 0xffffffff);
bellard authored
2236
2237
2238
#else
                    args[nb_args++] = (void *)0;
#endif
2239
                    args[nb_args++] = (void *)(long)(val & 0xffffffff);
bellard authored
2240
                }
2241
2242
2243
2244
2245
2246
            }
            break;
        case '-':
            {
                int has_option;
                /* option */
2247
2248
2249
2250
                c = *typestr++;
                if (c == '\0')
                    goto bad_type;
2251
                while (isspace(*p))
2252
2253
2254
2255
2256
                    p++;
                has_option = 0;
                if (*p == '-') {
                    p++;
                    if (*p != c) {
2257
                        term_printf("%s: unsupported option -%c\n",
2258
2259
2260
2261
2262
2263
2264
2265
                                    cmdname, *p);
                        goto fail;
                    }
                    p++;
                    has_option = 1;
                }
                if (nb_args >= MAX_ARGS)
                    goto error_args;
2266
                args[nb_args++] = (void *)(long)has_option;
2267
2268
2269
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            }
            break;
        default:
        bad_type:
            term_printf("%s: unknown type '%c'\n", cmdname, c);
            goto fail;
        }
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    }
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    /* check that all arguments were parsed */
    while (isspace(*p))
        p++;
    if (*p != '\0') {
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        term_printf("%s: extraneous characters at the end of line\n",
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                    cmdname);
        goto fail;
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    }
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    switch(nb_args) {
    case 0:
        cmd->handler();
        break;
    case 1:
        cmd->handler(args[0]);
        break;
    case 2:
        cmd->handler(args[0], args[1]);
        break;
    case 3:
        cmd->handler(args[0], args[1], args[2]);
        break;
    case 4:
        cmd->handler(args[0], args[1], args[2], args[3]);
        break;
    case 5:
        cmd->handler(args[0], args[1], args[2], args[3], args[4]);
        break;
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    case 6:
        cmd->handler(args[0], args[1], args[2], args[3], args[4], args[5]);
        break;
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    case 7:
        cmd->handler(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
        break;
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    default:
        term_printf("unsupported number of arguments: %d\n", nb_args);
        goto fail;
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    }
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    for(i = 0; i < MAX_ARGS; i++)
        qemu_free(str_allocated[i]);
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    return;
}
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static void cmd_completion(const char *name, const char *list)
{
    const char *p, *pstart;
    char cmd[128];
    int len;

    p = list;
    for(;;) {
        pstart = p;
        p = strchr(p, '|');
        if (!p)
            p = pstart + strlen(pstart);
        len = p - pstart;
        if (len > sizeof(cmd) - 2)
            len = sizeof(cmd) - 2;
        memcpy(cmd, pstart, len);
        cmd[len] = '\0';
        if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
            add_completion(cmd);
        }
        if (*p == '\0')
            break;
        p++;
    }
}

static void file_completion(const char *input)
{
    DIR *ffs;
    struct dirent *d;
    char path[1024];
    char file[1024], file_prefix[1024];
    int input_path_len;
    const char *p;
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    p = strrchr(input, '/');
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    if (!p) {
        input_path_len = 0;
        pstrcpy(file_prefix, sizeof(file_prefix), input);
        strcpy(path, ".");
    } else {
        input_path_len = p - input + 1;
        memcpy(path, input, input_path_len);
        if (input_path_len > sizeof(path) - 1)
            input_path_len = sizeof(path) - 1;
        path[input_path_len] = '\0';
        pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
    }
#ifdef DEBUG_COMPLETION
    term_printf("input='%s' path='%s' prefix='%s'\n", input, path, file_prefix);
#endif
    ffs = opendir(path);
    if (!ffs)
        return;
    for(;;) {
        struct stat sb;
        d = readdir(ffs);
        if (!d)
            break;
        if (strstart(d->d_name, file_prefix, NULL)) {
            memcpy(file, input, input_path_len);
            strcpy(file + input_path_len, d->d_name);
            /* stat the file to find out if it's a directory.
             * In that case add a slash to speed up typing long paths
             */
            stat(file, &sb);
            if(S_ISDIR(sb.st_mode))
                strcat(file, "/");
            add_completion(file);
        }
    }
    closedir(ffs);
}

static void block_completion_it(void *opaque, const char *name)
{
    const char *input = opaque;

    if (input[0] == '\0' ||
        !strncmp(name, (char *)input, strlen(input))) {
        add_completion(name);
    }
}

/* NOTE: this parser is an approximate form of the real command parser */
static void parse_cmdline(const char *cmdline,
                         int *pnb_args, char **args)
{
    const char *p;
    int nb_args, ret;
    char buf[1024];

    p = cmdline;
    nb_args = 0;
    for(;;) {
        while (isspace(*p))
            p++;
        if (*p == '\0')
            break;
        if (nb_args >= MAX_ARGS)
            break;
        ret = get_str(buf, sizeof(buf), &p);
        args[nb_args] = qemu_strdup(buf);
        nb_args++;
        if (ret < 0)
            break;
    }
    *pnb_args = nb_args;
}
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void readline_find_completion(const char *cmdline)
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{
    const char *cmdname;
    char *args[MAX_ARGS];
    int nb_args, i, len;
    const char *ptype, *str;
    term_cmd_t *cmd;
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    const KeyDef *key;
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    parse_cmdline(cmdline, &nb_args, args);
#ifdef DEBUG_COMPLETION
    for(i = 0; i < nb_args; i++) {
        term_printf("arg%d = '%s'\n", i, (char *)args[i]);
    }
#endif

    /* if the line ends with a space, it means we want to complete the
       next arg */
    len = strlen(cmdline);
    if (len > 0 && isspace(cmdline[len - 1])) {
        if (nb_args >= MAX_ARGS)
            return;
        args[nb_args++] = qemu_strdup("");
    }
    if (nb_args <= 1) {
        /* command completion */
        if (nb_args == 0)
            cmdname = "";
        else
            cmdname = args[0];
        completion_index = strlen(cmdname);
        for(cmd = term_cmds; cmd->name != NULL; cmd++) {
            cmd_completion(cmdname, cmd->name);
        }
    } else {
        /* find the command */
        for(cmd = term_cmds; cmd->name != NULL; cmd++) {
            if (compare_cmd(args[0], cmd->name))
                goto found;
        }
        return;
    found:
        ptype = cmd->args_type;
        for(i = 0; i < nb_args - 2; i++) {
            if (*ptype != '\0') {
                ptype++;
                while (*ptype == '?')
                    ptype++;
            }
        }
        str = args[nb_args - 1];
        switch(*ptype) {
        case 'F':
            /* file completion */
            completion_index = strlen(str);
            file_completion(str);
            break;
        case 'B':
            /* block device name completion */
            completion_index = strlen(str);
            bdrv_iterate(block_completion_it, (void *)str);
            break;
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        case 's':
            /* XXX: more generic ? */
            if (!strcmp(cmd->name, "info")) {
                completion_index = strlen(str);
                for(cmd = info_cmds; cmd->name != NULL; cmd++) {
                    cmd_completion(str, cmd->name);
                }
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            } else if (!strcmp(cmd->name, "sendkey")) {
                completion_index = strlen(str);
                for(key = key_defs; key->name != NULL; key++) {
                    cmd_completion(str, key->name);
                }
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            }
            break;
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        default:
            break;
        }
    }
    for(i = 0; i < nb_args; i++)
        qemu_free(args[i]);
}
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static int term_can_read(void *opaque)
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{
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    return 128;
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}
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static void term_read(void *opaque, const uint8_t *buf, int size)
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{
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    int i;
    for(i = 0; i < size; i++)
        readline_handle_byte(buf[i]);
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}
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static void monitor_start_input(void);
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static void monitor_handle_command1(void *opaque, const char *cmdline)
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{
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    monitor_handle_command(cmdline);
    monitor_start_input();
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}
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static void monitor_start_input(void)
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{
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    readline_start("(qemu) ", 0, monitor_handle_command1, NULL);
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}
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static void term_event(void *opaque, int event)
{
    if (event != CHR_EVENT_RESET)
	return;

    if (!hide_banner)
	    term_printf("QEMU %s monitor - type 'help' for more information\n",
			QEMU_VERSION);
    monitor_start_input();
}
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static int is_first_init = 1;
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void monitor_init(CharDriverState *hd, int show_banner)
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{
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    int i;

    if (is_first_init) {
        for (i = 0; i < MAX_MON; i++) {
            monitor_hd[i] = NULL;
        }
        is_first_init = 0;
    }
    for (i = 0; i < MAX_MON; i++) {
        if (monitor_hd[i] == NULL) {
            monitor_hd[i] = hd;
            break;
        }
    }
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    hide_banner = !show_banner;
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    qemu_chr_add_handlers(hd, term_can_read, term_read, term_event, NULL);
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}
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/* XXX: use threads ? */
/* modal monitor readline */
static int monitor_readline_started;
static char *monitor_readline_buf;
static int monitor_readline_buf_size;
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static void monitor_readline_cb(void *opaque, const char *input)
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{
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    pstrcpy(monitor_readline_buf, monitor_readline_buf_size, input);
    monitor_readline_started = 0;
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}
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void monitor_readline(const char *prompt, int is_password,
                      char *buf, int buf_size)
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{
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    int i;
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    if (is_password) {
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        for (i = 0; i < MAX_MON; i++)
            if (monitor_hd[i] && monitor_hd[i]->focus == 0)
                qemu_chr_send_event(monitor_hd[i], CHR_EVENT_FOCUS);
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    }
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    readline_start(prompt, is_password, monitor_readline_cb, NULL);
    monitor_readline_buf = buf;
    monitor_readline_buf_size = buf_size;
    monitor_readline_started = 1;
    while (monitor_readline_started) {
        main_loop_wait(10);
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    }
}