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         __attribute__ ((format(printf, 4, 5)))                          \
  18         extern void _lttng_ust_tracelog_##level(const char *file,       \
  19                 int line, const char *func, const char *fmt, ...);      \
  20         __attribute__ ((format(printf, 4, 0)))                          \
  21         extern void _lttng_ust_vtracelog_##level(const char *file,      \
  22                 int line, const char *func, const char *fmt, va_list ap);
  23
  24 TP_TRACELOG_CB_TEMPLATE(TRACE_EMERG);
  25 TP_TRACELOG_CB_TEMPLATE(TRACE_ALERT);
  26 TP_TRACELOG_CB_TEMPLATE(TRACE_CRIT);
  27 TP_TRACELOG_CB_TEMPLATE(TRACE_ERR);
  28 TP_TRACELOG_CB_TEMPLATE(TRACE_WARNING);
  29 TP_TRACELOG_CB_TEMPLATE(TRACE_NOTICE);
  30 TP_TRACELOG_CB_TEMPLATE(TRACE_INFO);
  31 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_SYSTEM);
  32 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_PROGRAM);
  33 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_PROCESS);
  34 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_MODULE);
  35 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_UNIT);
  36 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_FUNCTION);
  37 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG_LINE);
  38 TP_TRACELOG_CB_TEMPLATE(TRACE_DEBUG);
  39
  40 #undef TP_TRACELOG_CB_TEMPLATE
  41
  42 #define tracelog(level, fmt, ...)                                       \
  43         do {                                                            \
  44                 LTTNG_STAP_PROBEV(tracepoint_lttng_ust_tracelog, level, ## __VA_ARGS__); \
  45                 if (caa_unlikely(__tracepoint_lttng_ust_tracelog___##level.state)) \
  46                         _lttng_ust_tracelog_##level(__FILE__, __LINE__, __func__, \
  47                                 fmt, ## __VA_ARGS__);                   \
  48         } while (0)
  49
  50 #define vtracelog(level, fmt, ap)                                       \
  51         do {                                                            \
  52                 if (caa_unlikely(__tracepoint_lttng_ust_tracelog___##level.state)) \
  53                         _lttng_ust_vtracelog_##level(__FILE__, __LINE__, __func__, \
  54                                 fmt, ap);                               \
  55         } while (0)
  56
  57 #ifdef __cplusplus
  58 }
  59 #endif
  60
  61 #endif /* _LTTNG_UST_TRACELOG_H */