Jonathan Peyton
8d85f8eca1
This change has the CMake build system create a dynamic library named libomp instead of libiomp5. Also any reference to libiomp is replaced with libomp. One can still use the LIBOMP_LIB_NAME variable to enforce a different name, and everything will still work as expected. An important note is that libiomp5 and libgomp symlinks are created at install time when on Unix systems. On Windows, copies are created with the legacy names. git-svn-id: https://llvm.org/svn/llvm-project/openmp/trunk@238715 91177308-0d34-0410-b5e6-96231b3b80d8
161 lines
8.6 KiB
CMake
161 lines
8.6 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 Intel(R) C Compiler / Intel(R) C++ Compiler / Intel(R) Fortran Compiler (icc/icpc/icl.exe/ifort) dependent flags
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# The flag types are:
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# 2) C/C++ Compiler flags
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# 4) Linker flags
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# icc has a 128-bit floating point type called _Quad. Always compile with 128-bit floating point if it exists.
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unset(COMPILER_SUPPORTS_QUAD_PRECISION CACHE)
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set(COMPILER_SUPPORTS_QUAD_PRECISION true CACHE BOOL "Does the compiler support a 128-bit floating point type?")
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set(COMPILER_QUAD_TYPE _Quad)
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#########################################################
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# icc C/C++ Compiler flags
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function(append_compiler_specific_c_and_cxx_flags 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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if(${WINDOWS})
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append_c_flags("-TP") # Tells the compiler to process a file as a C++ source file.
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append_cxx_flags("-EHsc") # Enable C++ exception handling.
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append_c_and_cxx_flags("-nologo") # Turn off tool banner.
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append_c_and_cxx_flags("-W3") # Enables diagnostics for remarks, warnings, and errors.
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# Additional warnings are also enabled above level 2 warnings.
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append_c_and_cxx_flags("-WX") # Change all Warnings to Errors
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append_c_and_cxx_flags("-GS") # Lets you control the threshold at which the stack checking routine is called or not called.
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append_c_and_cxx_flags("-Qoption,cpp,--extended_float_types") # Enabled _Quad type.
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if(${IA32})
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append_c_and_cxx_flags("-arch:ia32") # Tells the compiler which features it may target (ia32)
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append_c_and_cxx_flags("-Oy-") # equivalent to -fno-omit-frame-pointer
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endif()
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append_c_and_cxx_flags("-Qlong_double") # enable long double
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append_c_and_cxx_flags("-Qdiag-disable:177") # Disable warning: "... declared but never referenced"
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if(${IA32})
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append_c_and_cxx_flags("-Qsafeseh") # Registers exception handlers for safe exception handling.
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endif()
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if(${RELEASE_BUILD} OR ${RELWITHDEBINFO_BUILD})
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append_c_and_cxx_flags("-Qinline-min-size=1") # Specifies the upper limit for the size of what the inliner considers to be a small routine.
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else()
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append_c_and_cxx_flags("-Od") # Disables all optimizations.
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append_c_and_cxx_flags("-RTC1") # Enables run-time checks of the stack frame, and enables run-time checks for unintialized variables.
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append_c_and_cxx_flags("-MTd") # Tells the linker to search for unresolved references in a multithreaded, static run-time library.
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endif()
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else()
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append_c_and_cxx_flags("-Wsign-compare") # warn on sign comparisons
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append_c_and_cxx_flags("-Qoption,cpp,--extended_float_types") # Enabled _Quad type.
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append_c_and_cxx_flags("-fno-exceptions") # Exception handling table generation is disabled.
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append_c_and_cxx_flags("-x c++") # Compile C files as C++ files
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if(${LINUX})
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if(NOT ${MIC})
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append_c_and_cxx_flags("-Werror") # Changes all warnings to errors.
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endif()
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append_c_and_cxx_flags("-sox") # Tells the compiler to save the compilation options and version number
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# in the executable file. It also lets you choose whether to include
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# lists of certain functions.
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if(${MIC})
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append_c_and_cxx_flags("-mmic") # Build Intel(R) MIC Architecture native code
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append_c_and_cxx_flags("-ftls-model=initial-exec") # Changes the thread local storage (TLS) model. Generates a restrictive, optimized TLS code.
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# To use this setting, the thread-local variables accessed must be defined in one of the
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# modules available to the program.
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append_c_and_cxx_flags("-opt-streaming-stores never") # Disables generation of streaming stores for optimization.
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elseif(${IA32})
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append_c_and_cxx_flags("-falign-stack=maintain-16-byte") # Tells the compiler the stack alignment to use on entry to routines.
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append_c_and_cxx_flags("-mia32") # Tells the compiler which features it may target (ia32)
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endif()
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endif()
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endif()
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# CMake prefers the /MD flags when compiling Windows sources, but libomp needs to use /MT instead
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# So we replace these /MD instances with /MT within the CMAKE_*_FLAGS variables and put that out to the CACHE.
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# replace_md_with_mt() is in HelperFunctions.cmake
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if(${WINDOWS})
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replace_md_with_mt(CMAKE_C_FLAGS)
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replace_md_with_mt(CMAKE_C_FLAGS_RELEASE)
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replace_md_with_mt(CMAKE_C_FLAGS_RELWITHDEBINFO)
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replace_md_with_mt(CMAKE_C_FLAGS_DEBUG)
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replace_md_with_mt(CMAKE_CXX_FLAGS)
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replace_md_with_mt(CMAKE_CXX_FLAGS_RELEASE)
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replace_md_with_mt(CMAKE_CXX_FLAGS_RELWITHDEBINFO)
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replace_md_with_mt(CMAKE_CXX_FLAGS_DEBUG)
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endif()
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set(${input_c_flags} ${${input_c_flags}} "${local_c_flags}" PARENT_SCOPE)
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set(${input_cxx_flags} ${${input_cxx_flags}} "${local_cxx_flags}" PARENT_SCOPE)
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endfunction()
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#########################################################
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# icc Linker flags
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function(append_compiler_specific_linker_flags input_ld_flags input_ld_flags_libs)
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set(local_ld_flags)
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set(local_ld_flags_libs)
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if(${WINDOWS})
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# Have icc use link.exe directly when Windows
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set(CMAKE_C_CREATE_SHARED_LIBRARY "link.exe /out:<TARGET> <LINK_FLAGS> <OBJECTS> <LINK_LIBRARIES>" PARENT_SCOPE)
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set(CMAKE_SHARED_LINKER_FLAGS "$ENV{LDFLAGS}" CACHE STRING "Linker Flags" FORCE)
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append_linker_flags("-nologo") # Turn off tool banner.
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append_linker_flags("-dll")
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append_linker_flags("-WX:NO")
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append_linker_flags("-incremental:no")
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append_linker_flags("-version:${LIBOMP_VERSION}.0")
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append_linker_flags("-NXCompat")
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append_linker_flags("-DynamicBase") # This option modifies the header of an executable to indicate
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# whether the application should be randomly rebased at load time.
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if(${IA32})
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append_linker_flags("-machine:i386")
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append_linker_flags("-safeseh")
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elseif(${INTEL64})
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append_linker_flags("-machine:amd64")
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endif()
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if(${DEBUG_BUILD} OR ${RELWITHDEBINFO_BUILD})
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if(NOT "${pdb_file}" STREQUAL "")
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append_linker_flags("-debug")
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append_linker_flags("-pdb:${pdb_file}")
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endif()
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else()
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if(NOT "${pdb_file}" STREQUAL "")
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append_linker_flags("-debug")
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append_linker_flags("-pdb:${pdb_file}")
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append_linker_flags("-pdbstripped:${pdb_file}.stripped")
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endif()
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endif()
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if(NOT "${imp_file}" STREQUAL "")
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append_linker_flags("-implib:${lib_file}${lib}")
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endif()
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if(NOT "${def_file}" STREQUAL "")
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append_linker_flags("-def:${def_file}")
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endif()
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elseif(${MAC})
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append_linker_flags("-no-intel-extensions")
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if(NOT ${STUBS_LIBRARY})
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append_linker_flags_library("-pthread") # link in pthread library
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append_linker_flags_library("-ldl") # link in libdl (dynamic loader library)
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endif()
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if(${LIBOMP_STATS})
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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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else()
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if(${MIC})
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append_linker_flags("-mmic") # enable MIC linking
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append_linker_flags("-no-intel-extensions") # Enables or disables all Intel C and Intel C++ language extensions.
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elseif(${IA32})
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append_linker_flags_library("-lirc_pic") # link in libirc_pic
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endif()
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append_linker_flags("-static-intel") # Causes Intel-provided libraries to be linked in statically.
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if(NOT ${MIC})
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append_linker_flags("-Werror") # Warnings become errors
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endif()
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endif()
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set(${input_ld_flags} ${${input_ld_flags}} "${local_ld_flags}" PARENT_SCOPE)
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set(${input_ld_flags_libs} ${${input_ld_flags_libs}} "${local_ld_flags_libs}" PARENT_SCOPE)
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endfunction()
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