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#define CPU_LOG_TB_OP_IND  (1 << 16)
  46
  47/* Returns true if a bit is set in the current loglevel mask
  48 */
  49static inline bool qemu_loglevel_mask(int mask)
  50{
  51    return (qemu_loglevel & mask) != 0;
  52}
  53
  54/* Logging functions: */
  55
  56/* main logging function
  57 */
  58int GCC_FMT_ATTR(1, 2) qemu_log(const char *fmt, ...);
  59
  60/* vfprintf-like logging function
  61 */
  62static inline void GCC_FMT_ATTR(1, 0)
  63qemu_log_vprintf(const char *fmt, va_list va)
  64{
  65    if (qemu_logfile) {
  66        vfprintf(qemu_logfile, fmt, va);
  67    }
  68}
  69
  70/* log only if a bit is set on the current loglevel mask:
  71 * @mask: bit to check in the mask
  72 * @fmt: printf-style format string
  73 * @args: optional arguments for format string
  74 */
  75#define qemu_log_mask(MASK, FMT, ...)                   \
  76    do {                                                \
  77        if (unlikely(qemu_loglevel_mask(MASK))) {       \
  78            qemu_log(FMT, ## __VA_ARGS__);              \
  79        }                                               \
  80    } while (0)
  81
  82/* log only if a bit is set on the current loglevel mask
  83 * and we are in the address range we care about:
  84 * @mask: bit to check in the mask
  85 * @addr: address to check in dfilter
  86 * @fmt: printf-style format string
  87 * @args: optional arguments for format string
  88 */
  89#define qemu_log_mask_and_addr(MASK, ADDR, FMT, ...)    \
  90    do {                                                \
  91        if (unlikely(qemu_loglevel_mask(MASK)) &&       \
  92                     qemu_log_in_addr_range(ADDR)) {    \
  93            qemu_log(FMT, ## __VA_ARGS__);              \
  94        }                                               \
  95    } while (0)
  96
  97/* Maintenance: */
  98
  99/* define log items */
 100typedef struct QEMULogItem {
 101    int mask;
 102    const char *name;
 103    const char *help;
 104} QEMULogItem;
 105
 106extern const QEMULogItem qemu_log_items[];
 107
 108void qemu_set_log(int log_flags);
 109void qemu_log_needs_buffers(void);
 110void qemu_set_log_filename(const char *filename, Error **errp);
 111void qemu_set_dfilter_ranges(const char *ranges, Error **errp);
 112bool qemu_log_in_addr_range(uint64_t addr);
 113int qemu_str_to_log_mask(const char *str);
 114
 115/* Print a usage message listing all the valid logging categories
 116 * to the specified FILE*.
 117 */
 118void qemu_print_log_usage(FILE *f);
 119
 120/* fflush() the log file */
 121void qemu_log_flush(void);
 122/* Close the log file */
 123void qemu_log_close(void);
 124
 125#endif
 126