include/lttng/tracelog.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright (C) 2013-2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5  */
   6
   7 #ifndef _LTTNG_UST_TRACELOG_H
   8 #define _LTTNG_UST_TRACELOG_H
   9
  10 #include <lttng/tp/lttng-ust-tracelog.h>
  11
  12 #ifdef __cplusplus
  13 extern "C" {
  14 #endif
  15
  16 #define TP_TRACELOG_CB_TEMPLATE(level)                                  \
  17         extern void _lttng_ust_tracelog_##level(const char *file,       \
  18                 int line, const char *func, const char *fmt, ...)       \
  19                 __attribute__ ((format(printf, 4, 5)));                 \
  20                                                                         \
  21         extern void _lttng_ust_vtracelog_##level(const char *file,      \
  22                 int line, const char *func, const char *fmt,            \
  23                 va_list ap)                                             \
  24                 __attribute__ ((format(printf, 4, 0)));
  25
  26 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_EMERG);
  27 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_ALERT);
  28 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_CRIT);
  29 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_ERR);
  30 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_WARNING);
  31 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_NOTICE);
  32 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_INFO);
  33 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_SYSTEM);
  34 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROGRAM);
  35 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_PROCESS);
  36 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_MODULE);
  37 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_UNIT);
  38 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_FUNCTION);
  39 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG_LINE);
  40 TP_TRACELOG_CB_TEMPLATE(LTTNG_UST_TRACEPOINT_LOGLEVEL_DEBUG);
  41
  42 #undef TP_TRACELOG_CB_TEMPLATE
  43
  44 #define tracelog(level, fmt, ...)                                       \
  45         do {                                                            \
  46                 LTTNG_UST_STAP_PROBEV(tracepoint_lttng_ust_tracelog, level, ## __VA_ARGS__); \
  47                 if (caa_unlikely(lttng_ust_tracepoint_lttng_ust_tracelog___##level.state)) \
  48                         _lttng_ust_tracelog_##level(__FILE__, __LINE__, __func__, \
  49                                 fmt, ## __VA_ARGS__);                   \
  50         } while (0)
  51
  52 #define vtracelog(level, fmt, ap)                                       \
  53         do {                                                            \
  54                 if (caa_unlikely(lttng_ust_tracepoint_lttng_ust_tracelog___##level.state)) \
  55                         _lttng_ust_vtracelog_##level(__FILE__, __LINE__, __func__, \
  56                                 fmt, ap);                               \
  57         } while (0)
  58
  59 #ifdef __cplusplus
  60 }
  61 #endif
  62
  63 #endif /* _LTTNG_UST_TRACELOG_H */