# Distributed under the OSI-approved BSD 3-Clause License. See accompanying | |
# file Copyright.txt or https://cmake.org/licensing for details. | |
#.rst: | |
# FindLTTngUST | |
# ------------ | |
# | |
# This module finds the `LTTng-UST <http://lttng.org/>`__ library. | |
# | |
# Imported target | |
# ^^^^^^^^^^^^^^^ | |
# | |
# This module defines the following :prop_tgt:`IMPORTED` target: | |
# | |
# ``LTTng::UST`` | |
# The LTTng-UST library, if found | |
# | |
# Result variables | |
# ^^^^^^^^^^^^^^^^ | |
# | |
# This module sets the following | |
# | |
# ``LTTNGUST_FOUND`` | |
# ``TRUE`` if system has LTTng-UST | |
# ``LTTNGUST_INCLUDE_DIRS`` | |
# The LTTng-UST include directories | |
# ``LTTNGUST_LIBRARIES`` | |
# The libraries needed to use LTTng-UST | |
# ``LTTNGUST_VERSION_STRING`` | |
# The LTTng-UST version | |
# ``LTTNGUST_HAS_TRACEF`` | |
# ``TRUE`` if the ``tracef()`` API is available in the system's LTTng-UST | |
# ``LTTNGUST_HAS_TRACELOG`` | |
# ``TRUE`` if the ``tracelog()`` API is available in the system's LTTng-UST | |
find_path(LTTNGUST_INCLUDE_DIRS NAMES lttng/tracepoint.h) | |
find_library(LTTNGUST_LIBRARIES NAMES lttng-ust) | |
if(LTTNGUST_INCLUDE_DIRS AND LTTNGUST_LIBRARIES) | |
# find tracef() and tracelog() support | |
set(LTTNGUST_HAS_TRACEF 0) | |
set(LTTNGUST_HAS_TRACELOG 0) | |
if(EXISTS "${LTTNGUST_INCLUDE_DIRS}/lttng/tracef.h") | |
set(LTTNGUST_HAS_TRACEF TRUE) | |
endif() | |
if(EXISTS "${LTTNGUST_INCLUDE_DIRS}/lttng/tracelog.h") | |
set(LTTNGUST_HAS_TRACELOG TRUE) | |
endif() | |
# get version | |
set(lttngust_version_file "${LTTNGUST_INCLUDE_DIRS}/lttng/ust-version.h") | |
if(EXISTS "${lttngust_version_file}") | |
file(STRINGS "${lttngust_version_file}" lttngust_version_major_string | |
REGEX "^[\t ]*#define[\t ]+LTTNG_UST_MAJOR_VERSION[\t ]+[0-9]+[\t ]*$") | |
file(STRINGS "${lttngust_version_file}" lttngust_version_minor_string | |
REGEX "^[\t ]*#define[\t ]+LTTNG_UST_MINOR_VERSION[\t ]+[0-9]+[\t ]*$") | |
file(STRINGS "${lttngust_version_file}" lttngust_version_patch_string | |
REGEX "^[\t ]*#define[\t ]+LTTNG_UST_PATCHLEVEL_VERSION[\t ]+[0-9]+[\t ]*$") | |
string(REGEX REPLACE ".*([0-9]+).*" "\\1" | |
lttngust_v_major "${lttngust_version_major_string}") | |
string(REGEX REPLACE ".*([0-9]+).*" "\\1" | |
lttngust_v_minor "${lttngust_version_minor_string}") | |
string(REGEX REPLACE ".*([0-9]+).*" "\\1" | |
lttngust_v_patch "${lttngust_version_patch_string}") | |
set(LTTNGUST_VERSION_STRING | |
"${lttngust_v_major}.${lttngust_v_minor}.${lttngust_v_patch}") | |
unset(lttngust_version_major_string) | |
unset(lttngust_version_minor_string) | |
unset(lttngust_version_patch_string) | |
unset(lttngust_v_major) | |
unset(lttngust_v_minor) | |
unset(lttngust_v_patch) | |
endif() | |
unset(lttngust_version_file) | |
if(NOT TARGET LTTng::UST) | |
add_library(LTTng::UST UNKNOWN IMPORTED) | |
set_target_properties(LTTng::UST PROPERTIES | |
INTERFACE_INCLUDE_DIRECTORIES "${LTTNGUST_INCLUDE_DIRS}" | |
INTERFACE_LINK_LIBRARIES ${CMAKE_DL_LIBS} | |
IMPORTED_LINK_INTERFACE_LANGUAGES "C" | |
IMPORTED_LOCATION "${LTTNGUST_LIBRARIES}") | |
endif() | |
# add libdl to required libraries | |
set(LTTNGUST_LIBRARIES ${LTTNGUST_LIBRARIES} ${CMAKE_DL_LIBS}) | |
endif() | |
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) | |
find_package_handle_standard_args(LTTngUST FOUND_VAR LTTNGUST_FOUND | |
REQUIRED_VARS LTTNGUST_LIBRARIES | |
LTTNGUST_INCLUDE_DIRS | |
VERSION_VAR LTTNGUST_VERSION_STRING) | |
mark_as_advanced(LTTNGUST_LIBRARIES LTTNGUST_INCLUDE_DIRS) |