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bd2947329e
Change-Id: I5bfe77f9a871018e7a67553ed270e2df53006962 Reviewed-on: http://gerrit.cloudera.org:8080/4361 Reviewed-by: Alex Behm <alex.behm@cloudera.com> Tested-by: Internal Jenkins
107 lines
3.7 KiB
CMake
107 lines
3.7 KiB
CMake
##############################################################################
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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##############################################################################
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# Find the native LLVM includes and library
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#
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# LLVM_ROOT - hints the search path
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# LLVM_INCLUDE_DIR - where to find llvm include files
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# LLVM_LIBRARY_DIR - where to find llvm libs
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# LLVM_LFLAGS - llvm linker flags
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# LLVM_MODULE_LIBS - list of llvm libs for working with modules.
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# First look in LLVM_ROOT then ENV{LLVM_HOME} then system path.
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find_program(LLVM_CONFIG_EXECUTABLE llvm-config
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PATHS
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${LLVM_ROOT}/bin
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$ENV{LLVM_HOME}
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NO_DEFAULT_PATH
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)
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if (LLVM_CONFIG_EXECUTABLE STREQUAL "LLVM_CONFIG_EXECUTABLE-NOTFOUND")
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message(FATAL_ERROR "Could not find llvm-config")
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endif ()
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# Check LLVM Version to be compatible
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execute_process(
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COMMAND ${LLVM_CONFIG_EXECUTABLE} --version
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OUTPUT_VARIABLE LLVM_VERSION
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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if (NOT "${LLVM_VERSION}" VERSION_EQUAL "$ENV{IMPALA_LLVM_VERSION}")
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message(FATAL_ERROR
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"LLVM version must be $ENV{IMPALA_LLVM_VERSION}. Found version: ${LLVM_VERSION}")
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endif()
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message(STATUS "LLVM llvm-config found at: ${LLVM_CONFIG_EXECUTABLE}")
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execute_process(
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COMMAND ${LLVM_CONFIG_EXECUTABLE} --includedir
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OUTPUT_VARIABLE LLVM_INCLUDE_DIR
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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execute_process(
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COMMAND ${LLVM_CONFIG_EXECUTABLE} --libdir
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OUTPUT_VARIABLE LLVM_LIBRARY_DIR
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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execute_process(
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COMMAND ${LLVM_CONFIG_EXECUTABLE} --ldflags
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OUTPUT_VARIABLE LLVM_LFLAGS
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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# TODO: this does not work well. the config file will output -I/<include path> and
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# also -DNDEBUG. I've hard coded the #define that are necessary but we should make
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# this better. The necesesary flags are only #defines so maybe just def/undef those
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# around #include to llvm headers?
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#execute_process(
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# COMMAND ${LLVM_CONFIG_EXECUTABLE} --cxxflags
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# OUTPUT_VARIABLE LLVM_CFLAGS
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# OUTPUT_STRIP_TRAILING_WHITESPACE
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#)
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set(LLVM_CFLAGS
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"-D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS")
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# Get the link libs we need. llvm has many and we don't want to link all of the libs
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# if we don't need them.
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execute_process(
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COMMAND ${LLVM_CONFIG_EXECUTABLE} --libnames core mcjit native ipo bitreader target linker analysis debuginfodwarf
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OUTPUT_VARIABLE LLVM_MODULE_LIBS
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OUTPUT_STRIP_TRAILING_WHITESPACE
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)
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# CMake really doesn't like adding link directories and wants absolute paths
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# Reconstruct it with LLVM_MODULE_LIBS and LLVM_LIBRARY_DIR
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string(REPLACE " " ";" LIBS_LIST ${LLVM_MODULE_LIBS})
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set (LLVM_MODULE_LIBS "")
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foreach (LIB ${LIBS_LIST})
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set(LLVM_MODULE_LIBS ${LLVM_MODULE_LIBS} "${LLVM_LIBRARY_DIR}/${LIB}")
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endforeach(LIB)
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message(STATUS "LLVM include dir: ${LLVM_INCLUDE_DIR}")
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message(STATUS "LLVM lib dir: ${LLVM_LIBRARY_DIR}")
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if (CMAKE_DEBUG)
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message(STATUS "LLVM libs: ${LLVM_MODULE_LIBS}")
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endif()
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