include/lttng/tracef.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright (C) 2013-2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5  */
   6
   7 #ifndef _LTTNG_UST_TRACEF_H
   8 #define _LTTNG_UST_TRACEF_H
   9
  10 #include <lttng/tp/lttng-ust-tracef.h>
  11
  12 #ifdef __cplusplus
  13 extern "C" {
  14 #endif
  15
  16 extern
  17 void _lttng_ust_tracef(const char *fmt, ...)
  18         __attribute__((format(printf, 1, 2)));
  19
  20 extern
  21 void _lttng_ust_vtracef(const char *fmt, va_list ap)
  22         __attribute__((format(printf, 1, 0)));
  23
  24 #define tracef(fmt, ...)                                                \
  25         do {                                                            \
  26                 LTTNG_UST_STAP_PROBEV(tracepoint_lttng_ust_tracef, event, ## __VA_ARGS__); \
  27                 if (caa_unlikely(lttng_ust_tracepoint_lttng_ust_tracef___event.state)) \
  28                         _lttng_ust_tracef(fmt, ## __VA_ARGS__);         \
  29         } while (0)
  30
  31 #define vtracef(fmt, ap)                                                \
  32         do {                                                            \
  33                 if (caa_unlikely(lttng_ust_tracepoint_lttng_ust_tracef___event.state)) \
  34                         _lttng_ust_vtracef(fmt, ap);            \
  35         } while (0)
  36 #ifdef __cplusplus
  37 }
  38 #endif
  39
  40 #endif /* _LTTNG_UST_TRACEF_H */