Archipelago » qemu

#ifndef QEMU_LOG_H

#define QEMU_LOG_H

/* The deprecated global variables: */

extern FILE *logfile;

extern int loglevel;

/* 

 * The new API:

 *

 */

/* Log settings checking macros: */

/* Returns true if qemu_log() will really write somewhere

 */

#define qemu_log_enabled() (logfile != NULL)

/* Returns true if a bit is set in the current loglevel mask

 */

#define qemu_loglevel_mask(b) ((loglevel & (b)) != 0)

/* Logging functions: */

/* main logging function

 */

#define qemu_log(...) do {                 \

        if (logfile)                       \

            fprintf(logfile, ## __VA_ARGS__); \

    } while (0)

/* vfprintf-like logging function

 */

#define qemu_log_vprintf(fmt, va) do {     \

        if (logfile)                       \

            vfprintf(logfile, fmt, va);    \

    } while (0)

/* log only if a bit is set on the current loglevel mask

 */

#define qemu_log_mask(b, ...) do {         \

        if (loglevel & (b))                \

            fprintf(logfile, ## __VA_ARGS__); \

    } while (0)

/* Special cases: */

/* cpu_dump_state() logging functions: */

#define log_cpu_state(env, f) cpu_dump_state((env), logfile, fprintf, (f));

#define log_cpu_state_mask(b, env, f) do {           \

      if (loglevel & (b)) log_cpu_state((env), (f)); \

  } while (0)

/* disas() and target_disas() to logfile: */

#define log_target_disas(start, len, flags) \

        target_disas(logfile, (start), (len), (flags))

#define log_disas(start, len) \

        disas(logfile, (start), (len))

/* page_dump() output to the log file: */

#define log_page_dump() page_dump(logfile)

/* Maintenance: */

/* fflush() the log file */

#define qemu_log_flush() fflush(logfile)

/* Close the log file */

#define qemu_log_close() do { \

        fclose(logfile);      \

        logfile = NULL;       \

    } while (0)

/* Set up a new log file */

#define qemu_log_set_file(f) do { \

        logfile = (f);            \

    } while (0)

/* Set up a new log file, only if none is set */

#define qemu_log_try_set_file(f) do { \

        if (!logfile)                 \

            logfile = (f);            \

    } while (0)

#endif