648467ed05
This patch integrates the libiomp CMake build system into the LLVM CMake build system so that users can checkout libiomp into the projects directory of llvm and build llvm,clang, and libiomp all together. These changes specifically introduce a new install target which will put libraries and headers into the correct locations when either a standalone build or part of llvm. The copy_recipe() method has been removed in favor of the POST_BUILD method to move headers into the exports subdirectory. And lastly, the MicroTests.cmake file was refactored which led to simpler target dependencies and a new target, make libiomp-micro-tests, which performs the 5 small tests (test-relo, test-touch, etc.) when called. llvm-svn: 236534
139 lines
6.1 KiB
CMake
139 lines
6.1 KiB
CMake
#
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#//===----------------------------------------------------------------------===//
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#//
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#// The LLVM Compiler Infrastructure
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#//
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#// This file is dual licensed under the MIT and the University of Illinois Open
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#// Source Licenses. See LICENSE.txt for details.
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#//
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#//===----------------------------------------------------------------------===//
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#
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# This file holds the common flags independent of compiler
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# The flag types are:
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# 1) Assembly flags (append_asm_flags_common)
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# 2) C/C++ Compiler flags (append_c_and_cxx_flags_common)
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# 3) Fortran Compiler flags (append_fort_flags_common)
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# 4) Linker flags (append_linker_flags_common)
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# 5) Archiver flags (append_archiver_flags_common)
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# These append_* macros all append to the corresponding list variable holding the flags.
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macro(append_c_flags new_flag)
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list(APPEND local_c_flags "${new_flag}")
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endmacro()
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macro(append_cxx_flags new_flag)
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list(APPEND local_cxx_flags "${new_flag}")
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endmacro()
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macro(append_c_and_cxx_flags new_flag)
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append_c_flags("${new_flag}")
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append_cxx_flags("${new_flag}")
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endmacro()
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macro(append_asm_flags new_flag)
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list(APPEND local_asm_flags "${new_flag}")
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endmacro()
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macro(append_fort_flags new_flag)
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list(APPEND local_fort_flags "${new_flag}")
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endmacro()
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# The difference between linker_flags and linker_flags_libs is linker_flags_libs
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# is put at the end of the linker command where linking libraries should be done.
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macro(append_linker_flags new_flag)
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list(APPEND local_ld_flags "${new_flag}")
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endmacro()
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macro(append_linker_flags_library new_flag)
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list(APPEND local_ld_flags_libs "${new_flag}")
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endmacro()
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macro(append_archiver_flags new_flag)
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list(APPEND local_ar_flags "${new_flag}")
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endmacro()
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#########################################################
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# Global Assembly flags
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function(append_asm_flags_common input_asm_flags)
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set(local_asm_flags)
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set(${input_asm_flags} "${${input_asm_flags}}" "${local_asm_flags}" "${LIBIOMP_ASMFLAGS}" PARENT_SCOPE)
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endfunction()
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#########################################################
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# Global C/C++ Compiler flags
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function(append_c_and_cxx_flags_common input_c_flags input_cxx_flags)
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set(local_c_flags)
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set(local_cxx_flags)
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set(${input_c_flags} "${${input_c_flags}}" "${local_c_flags}" "${LIBIOMP_CFLAGS}" PARENT_SCOPE)
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set(${input_cxx_flags} "${${input_cxx_flags}}" "${local_cxx_flags}" "${LIBIOMP_CXXFLAGS}" PARENT_SCOPE)
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endfunction()
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#########################################################
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# Global Fortran Compiler flags (for creating .mod files)
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function(append_fort_flags_common input_fort_flags)
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set(local_fort_flags)
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set(${input_fort_flags} "${${input_fort_flags}}" "${local_fort_flags}" "${LIBIOMP_FFLAGS}" PARENT_SCOPE)
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endfunction()
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#########################################################
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# Linker flags
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function(append_linker_flags_common input_ld_flags input_ld_flags_libs)
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set(local_ld_flags)
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set(local_ld_flags_libs)
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if(${USE_PREDEFINED_LINKER_FLAGS})
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#################################
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# Windows linker flags
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if(${WINDOWS})
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##################
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# MAC linker flags
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elseif(${MAC})
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append_linker_flags("-single_module")
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append_linker_flags("-current_version ${version}.0")
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append_linker_flags("-compatibility_version ${version}.0")
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#####################################################################################
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# Intel(R) Many Integrated Core Architecture (Intel(R) MIC Architecture) linker flags
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elseif(${MIC})
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append_linker_flags("-Wl,-x")
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append_linker_flags("-Wl,--warn-shared-textrel") # Warn if the linker adds a DT_TEXTREL to a shared object.
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append_linker_flags("-Wl,--as-needed")
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append_linker_flags("-Wl,--version-script=${src_dir}/exports_so.txt") # Use exports_so.txt as version script to create versioned symbols for ELF libraries
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if(NOT ${STUBS_LIBRARY})
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append_linker_flags_library("-pthread") # link in pthread library
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endif()
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if(${STATS_GATHERING})
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append_linker_flags_library("-Wl,-lstdc++") # link in standard c++ library (stats-gathering needs it)
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endif()
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#########################
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# Unix based linker flags
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else()
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# For now, always include --version-script flag on Unix systems.
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append_linker_flags("-Wl,--version-script=${src_dir}/exports_so.txt") # Use exports_so.txt as version script to create versioned symbols for ELF libraries
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append_linker_flags("-Wl,-z,noexecstack") # Marks the object as not requiring executable stack.
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append_linker_flags("-Wl,--as-needed") # Only adds library dependencies as they are needed. (if libiomp5 actually uses a function from the library, then add it)
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if(NOT ${STUBS_LIBRARY})
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append_linker_flags("-Wl,--warn-shared-textrel") # Warn if the linker adds a DT_TEXTREL to a shared object.
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append_linker_flags("-Wl,-fini=__kmp_internal_end_fini") # When creating an ELF executable or shared object, call NAME when the
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# executable or shared object is unloaded, by setting DT_FINI to the
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# address of the function. By default, the linker uses "_fini" as the function to call.
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append_linker_flags_library("-pthread") # link pthread library
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endif()
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endif() # if(${OPERATING_SYSTEM}) ...
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endif() # USE_PREDEFINED_LINKER_FLAGS
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set(${input_ld_flags} "${${input_ld_flags}}" "${local_ld_flags}" "${LIBIOMP_LDFLAGS}" PARENT_SCOPE)
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set(${input_ld_flags_libs} "${${input_ld_flags_libs}}" "${local_ld_flags_libs}" "${LIBIOMP_LIBFLAGS}" PARENT_SCOPE)
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endfunction()
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#########################################################
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# Archiver Flags
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function(append_archiver_flags_common input_ar_flags)
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set(local_ar_flags)
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set(${input_ar_flags} "${${input_ar_flags}}" "${local_ar_flags}" PARENT_SCOPE)
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endfunction()
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