LXR qemu/include/qemu/log.h

   1#ifndef QEMU_LOG_H
   2#define QEMU_LOG_H
   3
   4
   5/* Private global variables, don't use */
   6extern FILE *qemu_logfile;
   7extern int qemu_loglevel;
   8
   9/* 
  10 * The new API:
  11 *
  12 */
  13
  14/* Log settings checking macros: */
  15
  16/* Returns true if qemu_log() will really write somewhere
  17 */
  18static inline bool qemu_log_enabled(void)
  19{
  20    return qemu_logfile != NULL;
  21}
  22
  23/* Returns true if qemu_log() will write somewhere else than stderr
  24 */
  25static inline bool qemu_log_separate(void)
  26{
  27    return qemu_logfile != NULL && qemu_logfile != stderr;
  28}
  29
  30#define CPU_LOG_TB_OUT_ASM (1 << 0)
  31#define CPU_LOG_TB_IN_ASM  (1 << 1)
  32#define CPU_LOG_TB_OP      (1 << 2)
  33#define CPU_LOG_TB_OP_OPT  (1 << 3)
  34#define CPU_LOG_INT        (1 << 4)
  35#define CPU_LOG_EXEC       (1 << 5)
  36#define CPU_LOG_PCALL      (1 << 6)
  37#define CPU_LOG_TB_CPU     (1 << 8)
  38#define CPU_LOG_RESET      (1 << 9)
  39#define LOG_UNIMP          (1 << 10)
  40#define LOG_GUEST_ERROR    (1 << 11)
  41#define CPU_LOG_MMU        (1 << 12)
  42#define CPU_LOG_TB_NOCHAIN (1 << 13)
  43#define CPU_LOG_PAGE       (1 << 14)
  44#define LOG_TRACE          (1 << 15)
  45
  46/* Returns true if a bit is set in the current loglevel mask
  47 */
  48static inline bool qemu_loglevel_mask(int mask)
  49{
  50    return (qemu_loglevel & mask) != 0;
  51}
  52
  53/* Logging functions: */
  54
  55/* main logging function
  56 */
  57void GCC_FMT_ATTR(1, 2) qemu_log(const char *fmt, ...);
  58
  59/* vfprintf-like logging function
  60 */
  61static inline void GCC_FMT_ATTR(1, 0)
  62qemu_log_vprintf(const char *fmt, va_list va)
  63{
  64    if (qemu_logfile) {
  65        vfprintf(qemu_logfile, fmt, va);
  66    }
  67}
  68
  69/* log only if a bit is set on the current loglevel mask:
  70 * @mask: bit to check in the mask
  71 * @fmt: printf-style format string
  72 * @args: optional arguments for format string
  73 */
  74#define qemu_log_mask(MASK, FMT, ...)                   \
  75    do {                                                \
  76        if (unlikely(qemu_loglevel_mask(MASK))) {       \
  77            qemu_log(FMT, ## __VA_ARGS__);              \
  78        }                                               \
  79    } while (0)
  80
  81/* log only if a bit is set on the current loglevel mask
  82 * and we are in the address range we care about:
  83 * @mask: bit to check in the mask
  84 * @addr: address to check in dfilter
  85 * @fmt: printf-style format string
  86 * @args: optional arguments for format string
  87 */
  88#define qemu_log_mask_and_addr(MASK, ADDR, FMT, ...)    \
  89    do {                                                \
  90        if (unlikely(qemu_loglevel_mask(MASK)) &&       \
  91                     qemu_log_in_addr_range(ADDR)) {    \
  92            qemu_log(FMT, ## __VA_ARGS__);              \
  93        }                                               \
  94    } while (0)
  95
  96/* Maintenance: */
  97
  98/* define log items */
  99typedef struct QEMULogItem {
 100    int mask;
 101    const char *name;
 102    const char *help;
 103} QEMULogItem;
 104
 105extern const QEMULogItem qemu_log_items[];
 106
 107/* This is the function that actually does the work of
 108 * changing the log level; it should only be accessed via
 109 * the qemu_set_log() wrapper.
 110 */
 111void do_qemu_set_log(int log_flags, bool use_own_buffers);
 112
 113static inline void qemu_set_log(int log_flags)
 114{
 115#ifdef CONFIG_USER_ONLY
 116    do_qemu_set_log(log_flags, true);
 117#else
 118    do_qemu_set_log(log_flags, false);
 119#endif
 120}
 121
 122void qemu_set_log_filename(const char *filename);
 123void qemu_set_dfilter_ranges(const char *ranges);
 124bool qemu_log_in_addr_range(uint64_t addr);
 125int qemu_str_to_log_mask(const char *str);
 126
 127/* Print a usage message listing all the valid logging categories
 128 * to the specified FILE*.
 129 */
 130void qemu_print_log_usage(FILE *f);
 131
 132/* fflush() the log file */
 133void qemu_log_flush(void);
 134/* Close the log file */
 135void qemu_log_close(void);
 136
 137#endif
 138