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###
#
# @copyright (c) 2009-2014 The University of Tennessee and The University
# of Tennessee Research Foundation.
# All rights reserved.
# @copyright (c) 2012-2014 Inria. All rights reserved.
# @copyright (c) 2012-2014 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria, Univ. Bordeaux. All rights reserved.
#
###
#
# - Find HWLOC include dirs and libraries
# Use this module by invoking find_package with the form:
# find_package(HWLOC
# [REQUIRED]) # Fail with error if hwloc is not found
#
# This module finds headers and hwloc library.
# Results are reported in variables:
# HWLOC_FOUND - True if headers and requested libraries were found
# HWLOC_INCLUDE_DIRS - hwloc include directories
# HWLOC_LIBRARY_DIRS - Link directories for hwloc libraries
# HWLOC_LIBRARIES - hwloc component libraries to be linked
#
# The user can give specific paths where to find the libraries adding cmake
# options at configure (ex: cmake path/to/project -DHWLOC_DIR=path/to/hwloc):
# HWLOC_DIR - Where to find the base directory of hwloc
# HWLOC_INCDIR - Where to find the header files
# HWLOC_LIBDIR - Where to find the library files
# The module can also look for the following environment variables if paths
# are not given as cmake variable: HWLOC_DIR, HWLOC_INCDIR, HWLOC_LIBDIR
#=============================================================================
# Copyright 2012-2013 Inria
# Copyright 2012-2013 Emmanuel Agullo
# Copyright 2012-2013 Mathieu Faverge
# Copyright 2012 Cedric Castagnede
# Copyright 2013 Florent Pruvost
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file MORSE-Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of Morse, substitute the full
# License text for the above reference.)
include(CheckStructHasMember)
include(CheckCSourceCompiles)
if (NOT HWLOC_FOUND)
set(HWLOC_DIR "" CACHE PATH "Installation directory of HWLOC library")
if (NOT HWLOC_FIND_QUIETLY)
message(STATUS "A cache variable, namely HWLOC_DIR, has been set to specify the install directory of HWLOC")
endif()
endif()
set(ENV_HWLOC_DIR "$ENV{HWLOC_DIR}")
set(ENV_HWLOC_INCDIR "$ENV{HWLOC_INCDIR}")
set(ENV_HWLOC_LIBDIR "$ENV{HWLOC_LIBDIR}")
set(HWLOC_GIVEN_BY_USER "FALSE")
if ( HWLOC_DIR OR ( HWLOC_INCDIR AND HWLOC_LIBDIR) OR ENV_HWLOC_DIR OR (ENV_HWLOC_INCDIR AND ENV_HWLOC_LIBDIR) )
set(HWLOC_GIVEN_BY_USER "TRUE")
endif()
# Optionally use pkg-config to detect include/library dirs (if pkg-config is available)
# -------------------------------------------------------------------------------------
include(FindPkgConfig)
find_package(PkgConfig QUIET)
if( PKG_CONFIG_EXECUTABLE AND NOT HWLOC_GIVEN_BY_USER )
pkg_search_module(HWLOC hwloc)
if (NOT HWLOC_FIND_QUIETLY)
if (HWLOC_FOUND AND HWLOC_LIBRARIES)
message(STATUS "Looking for HWLOC - found using PkgConfig")
#if(NOT HWLOC_INCLUDE_DIRS)
# message("${Magenta}HWLOC_INCLUDE_DIRS is empty using PkgConfig."
# "Perhaps the path to hwloc headers is already present in your"
# "C(PLUS)_INCLUDE_PATH environment variable.${ColourReset}")
#endif()
else()
message(STATUS "${Magenta}Looking for HWLOC - not found using PkgConfig."
"\n Perhaps you should add the directory containing hwloc.pc to"
"\n the PKG_CONFIG_PATH environment variable.${ColourReset}")
endif()
endif()
endif( PKG_CONFIG_EXECUTABLE AND NOT HWLOC_GIVEN_BY_USER )
if( (NOT PKG_CONFIG_EXECUTABLE) OR (PKG_CONFIG_EXECUTABLE AND NOT HWLOC_FOUND) OR (HWLOC_GIVEN_BY_USER) )
if (NOT HWLOC_FIND_QUIETLY)
message(STATUS "Looking for HWLOC - PkgConfig not used")
endif()
# Looking for include
# -------------------
# Add system include paths to search include
# ------------------------------------------
unset(_inc_env)
if(ENV_HWLOC_INCDIR)
list(APPEND _inc_env "${ENV_HWLOC_INCDIR}")
elseif(ENV_HWLOC_DIR)
list(APPEND _inc_env "${ENV_HWLOC_DIR}")
list(APPEND _inc_env "${ENV_HWLOC_DIR}/include")
list(APPEND _inc_env "${ENV_HWLOC_DIR}/include/hwloc")
else()
if(WIN32)
string(REPLACE ":" ";" _inc_env "$ENV{INCLUDE}")
else()
string(REPLACE ":" ";" _path_env "$ENV{INCLUDE}")
list(APPEND _inc_env "${_path_env}")
string(REPLACE ":" ";" _path_env "$ENV{C_INCLUDE_PATH}")
list(APPEND _inc_env "${_path_env}")
string(REPLACE ":" ";" _path_env "$ENV{CPATH}")
list(APPEND _inc_env "${_path_env}")
string(REPLACE ":" ";" _path_env "$ENV{INCLUDE_PATH}")
list(APPEND _inc_env "${_path_env}")
endif()
endif()
list(APPEND _inc_env "${CMAKE_PLATFORM_IMPLICIT_INCLUDE_DIRECTORIES}")
list(APPEND _inc_env "${CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES}")
list(REMOVE_DUPLICATES _inc_env)
# set paths where to look for
set(PATH_TO_LOOK_FOR "${_inc_env}")
# Try to find the hwloc header in the given paths
# -------------------------------------------------
# call cmake macro to find the header path
if(HWLOC_INCDIR)
set(HWLOC_hwloc.h_DIRS "HWLOC_hwloc.h_DIRS-NOTFOUND")
find_path(HWLOC_hwloc.h_DIRS
NAMES hwloc.h
HINTS ${HWLOC_INCDIR})
else()
if(HWLOC_DIR)
set(HWLOC_hwloc.h_DIRS "HWLOC_hwloc.h_DIRS-NOTFOUND")
find_path(HWLOC_hwloc.h_DIRS
NAMES hwloc.h
HINTS ${HWLOC_DIR}
PATH_SUFFIXES "include" "include/hwloc")
else()
set(HWLOC_hwloc.h_DIRS "HWLOC_hwloc.h_DIRS-NOTFOUND")
find_path(HWLOC_hwloc.h_DIRS
NAMES hwloc.h
HINTS ${PATH_TO_LOOK_FOR}
PATH_SUFFIXES "hwloc")
endif()
endif()
mark_as_advanced(HWLOC_hwloc.h_DIRS)
# Add path to cmake variable
# ------------------------------------
if (HWLOC_hwloc.h_DIRS)
set(HWLOC_INCLUDE_DIRS "${HWLOC_hwloc.h_DIRS}")
else ()
set(HWLOC_INCLUDE_DIRS "HWLOC_INCLUDE_DIRS-NOTFOUND")
if(NOT HWLOC_FIND_QUIETLY)
message(STATUS "Looking for hwloc -- hwloc.h not found")
endif()
endif ()
if (HWLOC_INCLUDE_DIRS)
list(REMOVE_DUPLICATES HWLOC_INCLUDE_DIRS)
endif ()
# Looking for lib
# ---------------
# Add system library paths to search lib
# --------------------------------------
unset(_lib_env)
if(ENV_HWLOC_LIBDIR)
list(APPEND _lib_env "${ENV_HWLOC_LIBDIR}")
elseif(ENV_HWLOC_DIR)
list(APPEND _lib_env "${ENV_HWLOC_DIR}")
list(APPEND _lib_env "${ENV_HWLOC_DIR}/lib")
else()
if(WIN32)
string(REPLACE ":" ";" _lib_env "$ENV{LIB}")
else()
if(APPLE)
string(REPLACE ":" ";" _lib_env "$ENV{DYLD_LIBRARY_PATH}")
else()
string(REPLACE ":" ";" _lib_env "$ENV{LD_LIBRARY_PATH}")
endif()
list(APPEND _lib_env "${CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES}")
list(APPEND _lib_env "${CMAKE_C_IMPLICIT_LINK_DIRECTORIES}")
endif()
endif()
list(REMOVE_DUPLICATES _lib_env)
# set paths where to look for
set(PATH_TO_LOOK_FOR "${_lib_env}")
# Try to find the hwloc lib in the given paths
# ----------------------------------------------
# call cmake macro to find the lib path
if(HWLOC_LIBDIR)
set(HWLOC_hwloc_LIBRARY "HWLOC_hwloc_LIBRARY-NOTFOUND")
find_library(HWLOC_hwloc_LIBRARY
NAMES hwloc
HINTS ${HWLOC_LIBDIR})
else()
if(HWLOC_DIR)
set(HWLOC_hwloc_LIBRARY "HWLOC_hwloc_LIBRARY-NOTFOUND")
find_library(HWLOC_hwloc_LIBRARY
NAMES hwloc
HINTS ${HWLOC_DIR}
PATH_SUFFIXES lib lib32 lib64)
else()
set(HWLOC_hwloc_LIBRARY "HWLOC_hwloc_LIBRARY-NOTFOUND")
find_library(HWLOC_hwloc_LIBRARY
NAMES hwloc
HINTS ${PATH_TO_LOOK_FOR})
endif()
endif()
mark_as_advanced(HWLOC_hwloc_LIBRARY)
# If found, add path to cmake variable
# ------------------------------------
if (HWLOC_hwloc_LIBRARY)
get_filename_component(hwloc_lib_path ${HWLOC_hwloc_LIBRARY} PATH)
# set cmake variables (respects naming convention)
set(HWLOC_LIBRARIES "${HWLOC_hwloc_LIBRARY}")
set(HWLOC_LIBRARY_DIRS "${hwloc_lib_path}")
else ()
set(HWLOC_LIBRARIES "HWLOC_LIBRARIES-NOTFOUND")
set(HWLOC_LIBRARY_DIRS "HWLOC_LIBRARY_DIRS-NOTFOUND")
if(NOT HWLOC_FIND_QUIETLY)
message(STATUS "Looking for hwloc -- lib hwloc not found")
endif()
endif ()
if (HWLOC_LIBRARY_DIRS)
list(REMOVE_DUPLICATES HWLOC_LIBRARY_DIRS)
endif ()
# check a function to validate the find
if(HWLOC_LIBRARIES)
set(REQUIRED_INCDIRS)
set(REQUIRED_LIBDIRS)
set(REQUIRED_LIBS)
# HWLOC
if (HWLOC_INCLUDE_DIRS)
set(REQUIRED_INCDIRS "${HWLOC_INCLUDE_DIRS}")
endif()
if (HWLOC_LIBRARY_DIRS)
set(REQUIRED_LIBDIRS "${HWLOC_LIBRARY_DIRS}")
endif()
set(REQUIRED_LIBS "${HWLOC_LIBRARIES}")
# set required libraries for link
set(CMAKE_REQUIRED_INCLUDES "${REQUIRED_INCDIRS}")
set(CMAKE_REQUIRED_LIBRARIES)
foreach(lib_dir ${REQUIRED_LIBDIRS})
list(APPEND CMAKE_REQUIRED_LIBRARIES "-L${lib_dir}")
endforeach()
list(APPEND CMAKE_REQUIRED_LIBRARIES "${REQUIRED_LIBS}")
string(REGEX REPLACE "^ -" "-" CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
# test link
unset(HWLOC_WORKS CACHE)
include(CheckFunctionExists)
check_function_exists(hwloc_topology_init HWLOC_WORKS)
mark_as_advanced(HWLOC_WORKS)
if(NOT HWLOC_WORKS)
if(NOT HWLOC_FIND_QUIETLY)
message(STATUS "Looking for hwloc : test of hwloc_topology_init with hwloc library fails")
message(STATUS "CMAKE_REQUIRED_LIBRARIES: ${CMAKE_REQUIRED_LIBRARIES}")
message(STATUS "CMAKE_REQUIRED_INCLUDES: ${CMAKE_REQUIRED_INCLUDES}")
message(STATUS "Check in CMakeFiles/CMakeError.log to figure out why it fails")
endif()
endif()
set(CMAKE_REQUIRED_INCLUDES)
set(CMAKE_REQUIRED_FLAGS)
set(CMAKE_REQUIRED_LIBRARIES)
endif(HWLOC_LIBRARIES)
endif( (NOT PKG_CONFIG_EXECUTABLE) OR (PKG_CONFIG_EXECUTABLE AND NOT HWLOC_FOUND) OR (HWLOC_GIVEN_BY_USER) )
if (HWLOC_LIBRARIES)
if (HWLOC_LIBRARY_DIRS)
list(GET HWLOC_LIBRARY_DIRS 0 first_lib_path)
else()
list(GET HWLOC_LIBRARIES 0 first_lib)
get_filename_component(first_lib_path "${first_lib}" PATH)
endif()
if (${first_lib_path} MATCHES "/lib(32|64)?$")
string(REGEX REPLACE "/lib(32|64)?$" "" not_cached_dir "${first_lib_path}")
set(HWLOC_DIR_FOUND "${not_cached_dir}" CACHE PATH "Installation directory of HWLOC library" FORCE)
else()
set(HWLOC_DIR_FOUND "${first_lib_path}" CACHE PATH "Installation directory of HWLOC library" FORCE)
endif()
endif()
mark_as_advanced(HWLOC_DIR)
mark_as_advanced(HWLOC_DIR_FOUND)
# check that HWLOC has been found
# -------------------------------
include(FindPackageHandleStandardArgs)
if (PKG_CONFIG_EXECUTABLE AND HWLOC_FOUND)
find_package_handle_standard_args(HWLOC DEFAULT_MSG
HWLOC_LIBRARIES)
else()
find_package_handle_standard_args(HWLOC DEFAULT_MSG
HWLOC_LIBRARIES
HWLOC_WORKS)
endif()
if (HWLOC_FOUND)
set(HWLOC_SAVE_CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES})
list(APPEND CMAKE_REQUIRED_INCLUDES ${HWLOC_INCLUDE_DIRS})
# test headers to guess the version
check_struct_has_member( "struct hwloc_obj" parent hwloc.h HAVE_HWLOC_PARENT_MEMBER )
check_struct_has_member( "struct hwloc_cache_attr_s" size hwloc.h HAVE_HWLOC_CACHE_ATTR )
check_c_source_compiles( "#include <hwloc.h>
int main(void) { hwloc_obj_t o; o->type = HWLOC_OBJ_PU; return 0;}" HAVE_HWLOC_OBJ_PU)
include(CheckLibraryExists)
check_library_exists(${HWLOC_LIBRARIES} hwloc_bitmap_free "" HAVE_HWLOC_BITMAP)
set(CMAKE_REQUIRED_INCLUDES ${HWLOC_SAVE_CMAKE_REQUIRED_INCLUDES})
endif()
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