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9875b11969
Since commit 79921fb00c (IntelLLVM: Set linker to compiler driver for
Windows, 2021-10-19, v3.23.0-rc1~127^2) we default to the compiler
driver as linker for executables, shared libraries, and static
libraries. Not doing so for shared modules was an oversight. Copying
the shared library command line for shared modules fixes the problem
(and also is what we do for MSVC).
The MSVC linker is fine for many cases, however it does not support GPU
offload code generated by the IntelLLVM compilers. Using the compiler
driver as linker, or at least a linker that understands the object
format, is required for linking shared modules that use GPU offload
(e.g., with SYCL or OpenMP).
Signed-off-by: William R. Dieter <william.r.dieter@intel.com>
67 lines
3.5 KiB
CMake
67 lines
3.5 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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# This module is shared by multiple languages; use include blocker.
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if(__WINDOWS_INTEL_LLVM)
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return()
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endif()
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set(__WINDOWS_INTEL_LLVM 1)
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# Platform/Windows-MSVC adds some linking options icx/ifx do not understand,
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# but that need to be passed to the linker. Wrap all the linking options from
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# Platform/Windows-MSVC so that the compiler will hand them off to the linker
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# without interpreting them.
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# Save original CMAKE_${t}_LINKER_FLAGS_INIT
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foreach(t EXE SHARED MODULE STATIC)
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set(_saved_cmake_${t}_linker_flags_init ${CMAKE_${t}_LINKER_FLAGS_INIT})
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set(CMAKE_${t}_LINKER_FLAGS_INIT "")
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endforeach()
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include(Platform/Windows-MSVC)
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# Wrap linker flags from Windows-MSVC
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set(_IntelLLVM_LINKER_WRAPPER_FLAG "/Qoption,link,")
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set(_IntelLLVM_LINKER_WRAPPER_FLAG_SEP ",")
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foreach(t EXE SHARED MODULE STATIC)
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set(_wrapped_linker_flags "")
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foreach(flag ${CMAKE_${t}_LINKER_FLAGS_INIT})
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string(STRIP ${flag} flag)
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list(APPEND _wrapped_linker_flags "${_IntelLLVM_LINKER_WRAPPER_FLAG}${flag}")
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endforeach()
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set(CMAKE_${t}_LINKER_FLAGS_INIT "")
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list(APPEND CMAKE_${t}_LINKER_FLAGS_INIT
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${_saved_cmake_${t}_linker_flags_init} ${_wrapped_linker_flags})
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endforeach()
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macro(__windows_compiler_intel lang)
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__windows_compiler_msvc(${lang})
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set(CMAKE_${lang}_LINKER_WRAPPER_FLAG "${_IntelLLVM_LINKER_WRAPPER_FLAG}")
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set(CMAKE_${lang}_LINKER_WRAPPER_FLAG_SEP "${_IntelLLVM_LINKER_WRAPPER_FLAG_SEP}")
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set(CMAKE_${lang}_CREATE_WIN32_EXE "${CMAKE_${lang}_LINKER_WRAPPER_FLAG}/subsystem:windows")
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set(CMAKE_${lang}_CREATE_CONSOLE_EXE "${CMAKE_${lang}_LINKER_WRAPPER_FLAG}/subsystem:console")
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set(CMAKE_LINK_DEF_FILE_FLAG "${CMAKE_${lang}_LINKER_WRAPPER_FLAG}/DEF:")
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set(CMAKE_LIBRARY_PATH_FLAG "${CMAKE_${lang}_LINKER_WRAPPER_FLAG}/LIBPATH:")
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# Features for LINK_LIBRARY generator expression
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if(MSVC_VERSION GREATER "1900")
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## WHOLE_ARCHIVE: Force loading all members of an archive
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set(CMAKE_LINK_LIBRARY_USING_WHOLE_ARCHIVE "LINKER:/WHOLEARCHIVE:<LIBRARY>")
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set(CMAKE_LINK_LIBRARY_USING_WHOLE_ARCHIVE_SUPPORTED TRUE)
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endif()
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set(CMAKE_${lang}_LINK_EXECUTABLE
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"${_CMAKE_VS_LINK_EXE}<CMAKE_${lang}_COMPILER> ${CMAKE_CL_NOLOGO} <CMAKE_${lang}_LINK_FLAGS> <OBJECTS> ${CMAKE_START_TEMP_FILE} <LINK_FLAGS> <LINK_LIBRARIES> /link /out:<TARGET> /implib:<TARGET_IMPLIB> /pdb:<TARGET_PDB> /version:<TARGET_VERSION_MAJOR>.<TARGET_VERSION_MINOR>${_PLATFORM_LINK_FLAGS} ${CMAKE_END_TEMP_FILE}")
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set(CMAKE_${lang}_CREATE_SHARED_LIBRARY
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"${_CMAKE_VS_LINK_DLL}<CMAKE_${lang}_COMPILER> ${CMAKE_CL_NOLOGO} <CMAKE_${lang}_LINK_FLAGS> <OBJECTS> ${CMAKE_START_TEMP_FILE} -LD <LINK_FLAGS> <LINK_LIBRARIES> -link /out:<TARGET> /implib:<TARGET_IMPLIB> /pdb:<TARGET_PDB> /version:<TARGET_VERSION_MAJOR>.<TARGET_VERSION_MINOR>${_PLATFORM_LINK_FLAGS} ${CMAKE_END_TEMP_FILE}")
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set(CMAKE_${lang}_CREATE_SHARED_MODULE ${CMAKE_${lang}_CREATE_SHARED_LIBRARY})
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if (NOT "${lang}" STREQUAL "Fortran" OR CMAKE_${lang}_COMPILER_VERSION VERSION_GREATER_EQUAL 2022.1)
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# The Fortran driver does not support -fuse-ld=llvm-lib before compiler version 2022.1
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set(CMAKE_${lang}_CREATE_STATIC_LIBRARY
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"<CMAKE_${lang}_COMPILER> ${CMAKE_CL_NOLOGO} <CMAKE_${lang}_LINK_FLAGS> <OBJECTS> ${CMAKE_START_TEMP_FILE} -fuse-ld=llvm-lib -o <TARGET> <LINK_FLAGS> <LINK_LIBRARIES> ${CMAKE_END_TEMP_FILE}")
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endif()
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set(CMAKE_DEPFILE_FLAGS_${lang} "-QMD -QMT <DEP_TARGET> -QMF <DEP_FILE>")
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set(CMAKE_${lang}_DEPFILE_FORMAT gcc)
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endmacro()
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