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#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#
# Common CMake utilities and configuration, shared by all Native components.
#
#
# Platform-specific prerequisite checks.
#
if(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
# Only 64-bit Java is supported.
if(NOT JVM_ARCH_DATA_MODEL EQUAL 64)
message(FATAL_ERROR "Unrecognised JVM_ARCH_DATA_MODEL '${JVM_ARCH_DATA_MODEL}'. "
"A 64-bit JVM must be used on Solaris, make sure that one is installed and, "
"if necessary, the MAVEN_OPTS environment variable includes '-d64'")
endif()
# Only gcc is suported for now.
if(NOT(CMAKE_COMPILER_IS_GNUCC AND CMAKE_COMPILER_IS_GNUCXX))
message(FATAL_ERROR "Only gcc is supported on Solaris")
endif()
endif()
#
# Helper functions and macros.
#
# Add flags to all the CMake compiler variables
macro(hadoop_add_compiler_flags FLAGS)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${FLAGS}")
endmacro()
# Add flags to all the CMake linker variables.
macro(hadoop_add_linker_flags FLAGS)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${FLAGS}")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${FLAGS}")
endmacro()
# Compile a library with both shared and static variants.
function(hadoop_add_dual_library LIBNAME)
add_library(${LIBNAME} SHARED ${ARGN})
add_library(${LIBNAME}_static STATIC ${ARGN})
set_target_properties(${LIBNAME}_static PROPERTIES OUTPUT_NAME ${LIBNAME})
endfunction()
# Link both a static and a dynamic target against some libraries.
function(hadoop_target_link_dual_libraries LIBNAME)
target_link_libraries(${LIBNAME} ${ARGN})
target_link_libraries(${LIBNAME}_static ${ARGN})
endfunction()
# Set all the output directories to the same place.
function(hadoop_output_directory TGT DIR)
set_target_properties(${TGT} PROPERTIES RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${DIR}")
set_target_properties(${TGT} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${DIR}")
set_target_properties(${TGT} PROPERTIES LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/${DIR}")
endfunction()
# Set the target directories for dynamic and static builds.
function(hadoop_dual_output_directory TGT DIR)
hadoop_output_directory(${TGT} "${DIR}")
hadoop_output_directory(${TGT}_static "${DIR}")
endfunction()
# Alter the behavior of find_package and find_library so that we find only
# shared libraries with a given version suffix. You should save
# CMAKE_FIND_LIBRARY_SUFFIXES before calling this function and restore it
# afterwards. On Windows this function is a no-op. Windows does not encode
# version number information information into library path names.
macro(hadoop_set_find_shared_library_version LVERS)
if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
# Mac OS uses .dylib
set(CMAKE_FIND_LIBRARY_SUFFIXES ".${LVERS}.dylib")
elseif(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
# FreeBSD has always .so installed.
set(CMAKE_FIND_LIBRARY_SUFFIXES ".so")
elseif(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
# Windows doesn't support finding shared libraries by version.
else()
# Most UNIX variants use .so
set(CMAKE_FIND_LIBRARY_SUFFIXES ".so.${LVERS}")
endif()
endmacro()
# Alter the behavior of find_package and find_library so that we find only
# shared libraries without any version suffix. You should save
# CMAKE_FIND_LIBRARY_SUFFIXES before calling this function and restore it
# afterwards. On Windows this function is a no-op. Windows does not encode
# version number information information into library path names.
macro(hadoop_set_find_shared_library_without_version)
if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
# Mac OS uses .dylib
set(CMAKE_FIND_LIBRARY_SUFFIXES ".dylib")
elseif(${CMAKE_SYSTEM_NAME} MATCHES "Windows")
# No effect
else()
# Most UNIX variants use .so
set(CMAKE_FIND_LIBRARY_SUFFIXES ".so")
endif()
endmacro()
# set the shared compiler flags
# support for GNU C/C++, add other compilers as necessary
if (CMAKE_C_COMPILER_ID STREQUAL "GNU" OR
CMAKE_C_COMPILER_ID STREQUAL "Clang" OR
CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
if(NOT DEFINED GCC_SHARED_FLAGS)
find_package(Threads REQUIRED)
if(CMAKE_USE_PTHREADS_INIT)
set(GCC_SHARED_FLAGS "-g -O2 -Wall -pthread -D_FILE_OFFSET_BITS=64")
else()
set(GCC_SHARED_FLAGS "-g -O2 -Wall -D_FILE_OFFSET_BITS=64")
endif()
endif()
endif()
# Set the shared linker flags.
hadoop_add_compiler_flags("${GCC_SHARED_FLAGS}")
hadoop_add_linker_flags("${LINKER_SHARED_FLAGS}")
#
# Linux-specific configuration.
#
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
# Make GNU extensions available.
hadoop_add_compiler_flags("-D_GNU_SOURCE")
# If JVM_ARCH_DATA_MODEL is 32, compile all binaries as 32-bit.
if(JVM_ARCH_DATA_MODEL EQUAL 32)
# Force 32-bit code generation on amd64/x86_64, ppc64, sparc64
if(CMAKE_COMPILER_IS_GNUCC AND CMAKE_SYSTEM_PROCESSOR MATCHES ".*64")
hadoop_add_compiler_flags("-m32")
hadoop_add_linker_flags("-m32")
endif()
# Set CMAKE_SYSTEM_PROCESSOR to ensure that find_package(JNI) will use 32-bit libraries
if(CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "amd64")
set(CMAKE_SYSTEM_PROCESSOR "i686")
endif()
endif()
# Determine float ABI of JVM on ARM.
if(CMAKE_SYSTEM_PROCESSOR MATCHES "^arm")
find_program(READELF readelf)
if(READELF MATCHES "NOTFOUND")
message(WARNING "readelf not found; JVM float ABI detection disabled")
else(READELF MATCHES "NOTFOUND")
execute_process(
COMMAND ${READELF} -A ${JAVA_JVM_LIBRARY}
OUTPUT_VARIABLE JVM_ELF_ARCH
ERROR_QUIET)
if(NOT JVM_ELF_ARCH MATCHES "Tag_ABI_VFP_args: VFP registers")
# Test compilation with -mfloat-abi=softfp using an arbitrary libc function
# (typically fails with "fatal error: bits/predefs.h: No such file or directory"
# if soft-float dev libraries are not installed)
message("Soft-float JVM detected")
include(CMakePushCheckState)
cmake_push_check_state()
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -mfloat-abi=softfp")
include(CheckSymbolExists)
check_symbol_exists(exit stdlib.h SOFTFP_AVAILABLE)
if(NOT SOFTFP_AVAILABLE)
message(FATAL_ERROR "Soft-float dev libraries required (e.g. 'apt-get install libc6-dev-armel' on Debian/Ubuntu)")
endif()
cmake_pop_check_state()
hadoop_add_compiler_flags("-mfloat-abi=softfp")
endif()
endif()
endif()
#
# Solaris-specific configuration.
#
elseif(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
# Solaris flags. 64-bit compilation is mandatory, and is checked earlier.
hadoop_add_compiler_flags("-m64 -D_POSIX_C_SOURCE=200112L -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS")
set(CMAKE_C_FLAGS "-std=gnu99 ${CMAKE_C_FLAGS}")
set(CMAKE_CXX_FLAGS "-std=gnu++98 ${CMAKE_CXX_FLAGS}")
hadoop_add_linker_flags("-m64")
# CMAKE_SYSTEM_PROCESSOR is set to the output of 'uname -p', which on Solaris is
# the 'lowest' ISA supported, i.e. 'i386' or 'sparc'. However in order for the
# standard CMake modules to look in the right places it needs to reflect the required
# compilation mode, i.e. 64 bit. We therefore force it to either 'amd64' or 'sparcv9'.
if(CMAKE_SYSTEM_PROCESSOR STREQUAL "i386")
set(CMAKE_SYSTEM_PROCESSOR "amd64")
set(CMAKE_LIBRARY_ARCHITECTURE "amd64")
elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "sparc")
set(CMAKE_SYSTEM_PROCESSOR "sparcv9")
set(CMAKE_LIBRARY_ARCHITECTURE "sparcv9")
else()
message(FATAL_ERROR "Unrecognised CMAKE_SYSTEM_PROCESSOR ${CMAKE_SYSTEM_PROCESSOR}")
endif()
endif()