ceph/cmake/modules/Findlttng-ust.cmake
Ali Maredia 1aa7bc2ec4 cmake: LTTng functionality added
Set LTTNG option to ON by default, added
Findlttng.cmake, added CMakeLists.txt in
src/tracing that generates .h files using
lttng-gen-tp, added WITH_LTTNG to
config-h.in.cmake.

Signed-off-by: Ali Maredia <amaredia@redhat.com>
2016-01-05 15:42:06 -05:00

71 lines
2.4 KiB
CMake

# - Find LTTng
# Find the Linux Trace Toolkit - next generation with associated includes path.
# See http://lttng.org/
#
# This module accepts the following optional variables:
# LTTNG_PATH_HINT = A hint on LTTNG install path.
#
# This module defines the following variables:
# LTTNG_FOUND = Was LTTng found or not?
# LTTNG_EXECUTABLE = The path to lttng command
# LTTNG_LIBRARIES = The list of libraries to link to when using LTTng
# LTTNG_INCLUDE_DIR = The path to LTTng include directory
#
# On can set LTTNG_PATH_HINT before using find_package(LTTng) and the
# module with use the PATH as a hint to find LTTng.
#
# The hint can be given on the command line too:
# cmake -DLTTNG_PATH_HINT=/DATA/ERIC/LTTng /path/to/source
if(LTTNG_PATH_HINT)
message(STATUS "FindLTTng: using PATH HINT: ${LTTNG_PATH_HINT}")
else()
set(LTTNG_PATH_HINT)
endif()
#One can add his/her own builtin PATH.
#FILE(TO_CMAKE_PATH "/DATA/ERIC/LTTng" MYPATH)
#list(APPEND LTTNG_PATH_HINT ${MYPATH})
find_path(LTTNG_INCLUDE_DIR
NAMES lttng/tracepoint.h
PATHS ${LTTNG_PATH_HINT}
PATH_SUFFIXES include
DOC "The LTTng include headers")
find_path(LTTNG_LIBRARY_DIR
NAMES liblttng-ust.so
PATHS ${LTTNG_PATH_HINT}
PATH_SUFFIXES lib lib64
DOC "The LTTng libraries")
find_library(LTTNG_UST_LIBRARY lttng-ust PATHS ${LTTNG_LIBRARY_DIR})
find_library(URCU_LIBRARY urcu-bp PATHS ${LTTNG_LIBRARY_DIR})
find_library(UUID_LIBRARY uuid)
set(LTTNG_LIBRARIES ${LTTNG_UST_LIBRARY} ${URCU_LIBRARY} ${UUID_LIBRARY})
message(STATUS "Looking for lttng executable...")
set(LTTNG_NAMES "lttng;lttng-ctl")
# FIND_PROGRAM twice using NO_DEFAULT_PATH on first shot
find_program(LTTNG_EXECUTABLE
NAMES ${LTTNG_NAMES}
PATHS ${LTTNG_PATH_HINT}/bin
NO_DEFAULT_PATH
DOC "The LTTNG command line tool")
find_program(LEX_PROGRAM
NAMES ${LTTNG_NAMES}
PATHS ${LTTNG_PATH_HINT}/bin
DOC "The LTTNG command line tool")
# handle the QUIETLY and REQUIRED arguments and set PRELUDE_FOUND to TRUE if
# all listed variables are TRUE
include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(LTTNG
REQUIRED_VARS LTTNG_INCLUDE_DIR LTTNG_LIBRARY_DIR)
# VERSION FPHSA options not handled by CMake version < 2.8.2)
# VERSION_VAR)
mark_as_advanced(LTTNG_INCLUDE_DIR)
mark_as_advanced(LTTNG_LIBRARY_DIR)