include/qemu/log.h

   1 #ifndef QEMU_LOG_H
   2 #define QEMU_LOG_H
   3
   4 /* A small part of this API is split into its own header */
   5 #include "qemu/log-for-trace.h"
   6
   7 /*
   8  * The new API:
   9  */
  10
  11 /* Returns true if qemu_log() will really write somewhere. */
  12 bool qemu_log_enabled(void);
  13
  14 /* Returns true if qemu_log() will write somewhere other than stderr. */
  15 bool qemu_log_separate(void);
  16
  17 #define CPU_LOG_TB_OUT_ASM (1 << 0)
  18 #define CPU_LOG_TB_IN_ASM  (1 << 1)
  19 #define CPU_LOG_TB_OP      (1 << 2)
  20 #define CPU_LOG_TB_OP_OPT  (1 << 3)
  21 #define CPU_LOG_INT        (1 << 4)
  22 #define CPU_LOG_EXEC       (1 << 5)
  23 #define CPU_LOG_PCALL      (1 << 6)
  24 #define CPU_LOG_TB_CPU     (1 << 8)
  25 #define CPU_LOG_RESET      (1 << 9)
  26 #define LOG_UNIMP          (1 << 10)
  27 #define LOG_GUEST_ERROR    (1 << 11)
  28 #define CPU_LOG_MMU        (1 << 12)
  29 #define CPU_LOG_TB_NOCHAIN (1 << 13)
  30 #define CPU_LOG_PAGE       (1 << 14)
  31 /* LOG_TRACE (1 << 15) is defined in log-for-trace.h */
  32 #define CPU_LOG_TB_OP_IND  (1 << 16)
  33 #define CPU_LOG_TB_FPU     (1 << 17)
  34 #define CPU_LOG_PLUGIN     (1 << 18)
  35 /* LOG_STRACE is used for user-mode strace logging. */
  36 #define LOG_STRACE         (1 << 19)
  37 #define LOG_PER_THREAD     (1 << 20)
  38
  39 /* Lock/unlock output. */
  40
  41 FILE *qemu_log_trylock(void) G_GNUC_WARN_UNUSED_RESULT;
  42 void qemu_log_unlock(FILE *fd);
  43
  44 /* Logging functions: */
  45
  46 /* log only if a bit is set on the current loglevel mask:
  47  * @mask: bit to check in the mask
  48  * @fmt: printf-style format string
  49  * @args: optional arguments for format string
  50  */
  51 #define qemu_log_mask(MASK, FMT, ...)                   \
  52     do {                                                \
  53         if (unlikely(qemu_loglevel_mask(MASK))) {       \
  54             qemu_log(FMT, ## __VA_ARGS__);              \
  55         }                                               \
  56     } while (0)
  57
  58 /* log only if a bit is set on the current loglevel mask
  59  * and we are in the address range we care about:
  60  * @mask: bit to check in the mask
  61  * @addr: address to check in dfilter
  62  * @fmt: printf-style format string
  63  * @args: optional arguments for format string
  64  */
  65 #define qemu_log_mask_and_addr(MASK, ADDR, FMT, ...)    \
  66     do {                                                \
  67         if (unlikely(qemu_loglevel_mask(MASK)) &&       \
  68                      qemu_log_in_addr_range(ADDR)) {    \
  69             qemu_log(FMT, ## __VA_ARGS__);              \
  70         }                                               \
  71     } while (0)
  72
  73 /* Maintenance: */
  74
  75 /* define log items */
  76 typedef struct QEMULogItem {
  77     int mask;
  78     const char *name;
  79     const char *help;
  80 } QEMULogItem;
  81
  82 extern const QEMULogItem qemu_log_items[];
  83
  84 bool qemu_set_log(int log_flags, Error **errp);
  85 bool qemu_set_log_filename(const char *filename, Error **errp);
  86 bool qemu_set_log_filename_flags(const char *name, int flags, Error **errp);
  87 void qemu_set_dfilter_ranges(const char *ranges, Error **errp);
  88 bool qemu_log_in_addr_range(uint64_t addr);
  89 int qemu_str_to_log_mask(const char *str);
  90
  91 /* Print a usage message listing all the valid logging categories
  92  * to the specified FILE*.
  93  */
  94 void qemu_print_log_usage(FILE *f);
  95
  96 #endif