include/qemu/log.h

   1 #ifndef QEMU_LOG_H
   2 #define QEMU_LOG_H
   3
   4
   5 /* Private global variables, don't use */
   6 extern FILE *qemu_logfile;
   7 extern 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  */
  18 static 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  */
  25 static 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  */
  48 static 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  */
  57 void GCC_FMT_ATTR(1, 2) qemu_log(const char *fmt, ...);
  58
  59 /* vfprintf-like logging function
  60  */
  61 static inline void GCC_FMT_ATTR(1, 0)
  62 qemu_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  */
  71 void GCC_FMT_ATTR(2, 3) qemu_log_mask(int mask, const char *fmt, ...);
  72
  73
  74 /* Maintenance: */
  75
  76 /* fflush() the log file */
  77 static inline void qemu_log_flush(void)
  78 {
  79     fflush(qemu_logfile);
  80 }
  81
  82 /* Close the log file */
  83 static inline void qemu_log_close(void)
  84 {
  85     if (qemu_logfile) {
  86         if (qemu_logfile != stderr) {
  87             fclose(qemu_logfile);
  88         }
  89         qemu_logfile = NULL;
  90     }
  91 }
  92
  93 /* define log items */
  94 typedef struct QEMULogItem {
  95     int mask;
  96     const char *name;
  97     const char *help;
  98 } QEMULogItem;
  99
 100 extern const QEMULogItem qemu_log_items[];
 101
 102 /* This is the function that actually does the work of
 103  * changing the log level; it should only be accessed via
 104  * the qemu_set_log() wrapper.
 105  */
 106 void do_qemu_set_log(int log_flags, bool use_own_buffers);
 107
 108 static inline void qemu_set_log(int log_flags)
 109 {
 110 #ifdef CONFIG_USER_ONLY
 111     do_qemu_set_log(log_flags, true);
 112 #else
 113     do_qemu_set_log(log_flags, false);
 114 #endif
 115 }
 116
 117 void qemu_set_log_filename(const char *filename);
 118 int qemu_str_to_log_mask(const char *str);
 119
 120 /* Print a usage message listing all the valid logging categories
 121  * to the specified FILE*.
 122  */
 123 void qemu_print_log_usage(FILE *f);
 124
 125 #endif