include/lttng/ust-tracer.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright (C) 2005-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   5  *
   6  * This contains the core definitions for the Linux Trace Toolkit.
   7  */
   8
   9 #ifndef _LTTNG_UST_TRACER_H
  10 #define _LTTNG_UST_TRACER_H
  11
  12 #include <lttng/ust-arch.h>
  13 #include <lttng/ust-compiler.h>
  14 #include <lttng/ust-utils.h>
  15 #include <lttng/ust-version.h>
  16
  17 /*
  18  * Default to having the content of the ringbuffer respect the natural
  19  * alignment of the system. Only pack its content on architectures we know
  20  * have efficient unaligned memory access.
  21  */
  22 #ifndef LTTNG_UST_ARCH_HAS_EFFICIENT_UNALIGNED_ACCESS
  23 #define LTTNG_UST_RING_BUFFER_NATURAL_ALIGN
  24 #endif
  25
  26 #ifdef LTTNG_UST_RING_BUFFER_NATURAL_ALIGN
  27 #define lttng_alignof(type)     __alignof__(type)
  28 #else
  29 #define lttng_alignof(type)     1
  30 #endif
  31
  32 /*
  33  * Concatenate lttng ust shared libraries name with their major version number.
  34  */
  35 #define LTTNG_UST_LIB_SONAME "liblttng-ust.so." lttng_ust_stringify(LTTNG_UST_LIB_SONAME_MAJOR)
  36 #define LTTNG_UST_TRACEPOINT_LIB_SONAME "liblttng-ust-tracepoint.so." lttng_ust_stringify(LTTNG_UST_LIB_SONAME_MAJOR)
  37 #define LTTNG_UST_CTL_LIB_SONAME "liblttng-ust-ctl.so." lttng_ust_stringify(LTTNG_UST_CTL_LIB_SONAME_MAJOR)
  38
  39
  40 #endif /* _LTTNG_UST_TRACER_H */