mirror of
https://github.com/Kitware/CMake.git
synced 2026-01-05 13:20:47 -06:00
0e96a20478
Replace our hard-coded default for `/Zi` with a first-class abstraction to select the debug information format an enumeration of logical names. We've long hesitated to do this because the idea of "debug information format" touches on related concepts on several platforms. Avoid that scope creep by simply defining an abstraction that applies only when targeting the MSVC ABI on Windows. Removing the old default flag requires a policy because existing projects may rely on string processing to edit them and choose a runtime library under the old behavior. Add policy CMP0141 to provide compatibility. Fixes: #10189
249 lines
11 KiB
CMake
249 lines
11 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_CLANG)
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return()
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endif()
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set(__WINDOWS_CLANG 1)
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set(__pch_header_C "c-header")
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set(__pch_header_CXX "c++-header")
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set(__pch_header_OBJC "objective-c-header")
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set(__pch_header_OBJCXX "objective-c++-header")
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macro(__windows_compiler_clang_gnu lang)
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set(CMAKE_LIBRARY_PATH_FLAG "-L")
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set(CMAKE_LINK_LIBRARY_FLAG "-l")
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set(CMAKE_IMPORT_LIBRARY_PREFIX "")
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set(CMAKE_SHARED_LIBRARY_PREFIX "")
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set(CMAKE_SHARED_MODULE_PREFIX "")
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set(CMAKE_STATIC_LIBRARY_PREFIX "")
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set(CMAKE_EXECUTABLE_SUFFIX ".exe")
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set(CMAKE_IMPORT_LIBRARY_SUFFIX ".lib")
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set(CMAKE_SHARED_LIBRARY_SUFFIX ".dll")
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set(CMAKE_SHARED_MODULE_SUFFIX ".dll")
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set(CMAKE_STATIC_LIBRARY_SUFFIX ".lib")
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if(NOT "${lang}" STREQUAL "ASM")
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set(CMAKE_DEPFILE_FLAGS_${lang} "-MD -MT <DEP_TARGET> -MF <DEP_FILE>")
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endif()
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set(CMAKE_FIND_LIBRARY_PREFIXES "lib" "")
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set(CMAKE_FIND_LIBRARY_SUFFIXES ".dll.a" ".a" ".lib")
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set(CMAKE_SUPPORT_WINDOWS_EXPORT_ALL_SYMBOLS 1)
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set (CMAKE_LINK_DEF_FILE_FLAG "-Xlinker /DEF:")
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set(CMAKE_${lang}_LINKER_WRAPPER_FLAG "-Xlinker" " ")
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set(CMAKE_${lang}_LINKER_WRAPPER_FLAG_SEP)
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set(CMAKE_${lang}_LINKER_MANIFEST_FLAG " -Xlinker /MANIFESTINPUT:")
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set(CMAKE_${lang}_COMPILE_OPTIONS_WARNING_AS_ERROR "-Werror")
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if("${CMAKE_${lang}_SIMULATE_VERSION}" MATCHES "^([0-9]+)\\.([0-9]+)")
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math(EXPR MSVC_VERSION "${CMAKE_MATCH_1}*100 + ${CMAKE_MATCH_2}")
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endif()
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# No -fPIC on Windows
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set(CMAKE_${lang}_COMPILE_OPTIONS_PIC "")
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set(CMAKE_${lang}_COMPILE_OPTIONS_PIE "")
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set(_CMAKE_${lang}_PIE_MAY_BE_SUPPORTED_BY_LINKER NO)
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set(CMAKE_${lang}_LINK_OPTIONS_PIE "")
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set(CMAKE_${lang}_LINK_OPTIONS_NO_PIE "")
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set(CMAKE_SHARED_LIBRARY_${lang}_FLAGS "")
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set(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_OBJECTS 1)
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set(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_LIBRARIES 1)
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set(CMAKE_${lang}_USE_RESPONSE_FILE_FOR_INCLUDES 1)
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if(CMAKE_${lang}_COMPILER_VERSION VERSION_GREATER_EQUAL 3.9)
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set(CMAKE_${lang}_COMPILE_OPTIONS_IPO "-flto=thin")
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else()
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set(CMAKE_${lang}_COMPILE_OPTIONS_IPO "-flto")
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endif()
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set(_CMAKE_${lang}_IPO_SUPPORTED_BY_CMAKE YES)
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set(_CMAKE_${lang}_IPO_MAY_BE_SUPPORTED_BY_COMPILER YES)
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set(CMAKE_${lang}_ARCHIVE_CREATE_IPO "<CMAKE_AR> qc <TARGET> <LINK_FLAGS> <OBJECTS>")
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set(CMAKE_${lang}_ARCHIVE_APPEND_IPO "<CMAKE_AR> q <TARGET> <LINK_FLAGS> <OBJECTS>")
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set(CMAKE_${lang}_ARCHIVE_FINISH_IPO "<CMAKE_RANLIB> <TARGET>")
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# Create archiving rules to support large object file lists for static libraries.
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set(CMAKE_${lang}_ARCHIVE_CREATE "<CMAKE_AR> qc <TARGET> <LINK_FLAGS> <OBJECTS>")
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set(CMAKE_${lang}_ARCHIVE_APPEND "<CMAKE_AR> q <TARGET> <LINK_FLAGS> <OBJECTS>")
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set(CMAKE_${lang}_ARCHIVE_FINISH "<CMAKE_RANLIB> <TARGET>")
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set(CMAKE_${lang}_CREATE_SHARED_LIBRARY
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"<CMAKE_${lang}_COMPILER> -fuse-ld=lld-link -nostartfiles -nostdlib <CMAKE_SHARED_LIBRARY_${lang}_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> -o <TARGET> ${CMAKE_GNULD_IMAGE_VERSION} -Xlinker /MANIFEST:EMBED -Xlinker /implib:<TARGET_IMPLIB> -Xlinker /pdb:<TARGET_PDB> -Xlinker /version:<TARGET_VERSION_MAJOR>.<TARGET_VERSION_MINOR> <OBJECTS> <LINK_LIBRARIES> <MANIFESTS>")
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set(CMAKE_${lang}_CREATE_SHARED_MODULE ${CMAKE_${lang}_CREATE_SHARED_LIBRARY})
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set(CMAKE_${lang}_LINK_EXECUTABLE
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"<CMAKE_${lang}_COMPILER> -fuse-ld=lld-link -nostartfiles -nostdlib <FLAGS> <CMAKE_${lang}_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> -Xlinker /MANIFEST:EMBED -Xlinker /implib:<TARGET_IMPLIB> -Xlinker /pdb:<TARGET_PDB> -Xlinker /version:<TARGET_VERSION_MAJOR>.<TARGET_VERSION_MINOR> ${CMAKE_GNULD_IMAGE_VERSION} <LINK_LIBRARIES> <MANIFESTS>")
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set(CMAKE_${lang}_CREATE_WIN32_EXE "-Xlinker /subsystem:windows")
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set(CMAKE_${lang}_CREATE_CONSOLE_EXE "-Xlinker /subsystem:console")
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if(NOT "${lang}" STREQUAL "ASM")
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set(CMAKE_${lang}_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreaded -Xclang -flto-visibility-public-std -D_MT -Xclang --dependent-lib=libcmt)
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set(CMAKE_${lang}_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreadedDLL -D_DLL -D_MT -Xclang --dependent-lib=msvcrt)
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set(CMAKE_${lang}_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreadedDebug -D_DEBUG -Xclang -flto-visibility-public-std -D_MT -Xclang --dependent-lib=libcmtd)
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set(CMAKE_${lang}_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreadedDebugDLL -D_DEBUG -D_DLL -D_MT -Xclang --dependent-lib=msvcrtd)
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if(CMAKE_MSVC_RUNTIME_LIBRARY_DEFAULT)
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set(_RTL_FLAGS "")
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set(_RTL_FLAGS_DEBUG "")
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else()
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set(_RTL_FLAGS_DEBUG " -D_DEBUG -D_DLL -D_MT -Xclang --dependent-lib=msvcrtd")
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set(_RTL_FLAGS " -D_DLL -D_MT -Xclang --dependent-lib=msvcrt")
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endif()
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if(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT_DEFAULT)
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set(_DBG_FLAGS "")
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else()
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set(_DBG_FLAGS " -g -Xclang -gcodeview")
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endif()
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string(APPEND CMAKE_${lang}_FLAGS_DEBUG_INIT " -O0${_DBG_FLAGS}${_RTL_FLAGS_DEBUG}")
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string(APPEND CMAKE_${lang}_FLAGS_MINSIZEREL_INIT " -Os -DNDEBUG${_RTL_FLAGS}")
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string(APPEND CMAKE_${lang}_FLAGS_RELEASE_INIT " -O3 -DNDEBUG${_RTL_FLAGS}")
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string(APPEND CMAKE_${lang}_FLAGS_RELWITHDEBINFO_INIT " -O2 -DNDEBUG${_DBG_FLAGS}${_RTL_FLAGS}")
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set(CMAKE_${lang}_COMPILE_OPTIONS_MSVC_DEBUG_INFORMATION_FORMAT_Embedded -g -Xclang -gcodeview)
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#set(CMAKE_${lang}_COMPILE_OPTIONS_MSVC_DEBUG_INFORMATION_FORMAT_ProgramDatabase) # not supported by Clang
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#set(CMAKE_${lang}_COMPILE_OPTIONS_MSVC_DEBUG_INFORMATION_FORMAT_EditAndContinue) # not supported by Clang
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endif()
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set(CMAKE_INCLUDE_SYSTEM_FLAG_${lang} "-isystem ")
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set(CMAKE_${lang}_LINKER_SUPPORTS_PDB ON)
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set(CMAKE_PCH_EXTENSION .pch)
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set(CMAKE_PCH_PROLOGUE "#pragma clang system_header")
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set(CMAKE_${lang}_COMPILE_OPTIONS_USE_PCH -Xclang -include-pch -Xclang <PCH_FILE> -Xclang -include -Xclang <PCH_HEADER>)
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set(CMAKE_${lang}_COMPILE_OPTIONS_CREATE_PCH -Xclang -emit-pch -Xclang -include -Xclang <PCH_HEADER> -x ${__pch_header_${lang}})
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unset(_DBG_FLAGS)
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unset(_RTL_FLAGS)
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unset(_RTL_FLAGS_DEBUG)
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string(TOLOWER "${CMAKE_BUILD_TYPE}" BUILD_TYPE_LOWER)
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set(CMAKE_${lang}_STANDARD_LIBRARIES_INIT "-lkernel32 -luser32 -lgdi32 -lwinspool -lshell32 -lole32 -loleaut32 -luuid -lcomdlg32 -ladvapi32 -loldnames")
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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_${lang}_LINK_LIBRARY_USING_WHOLE_ARCHIVE "LINKER:/WHOLEARCHIVE:<LIBRARY>")
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set(CMAKE_${lang}_LINK_LIBRARY_USING_WHOLE_ARCHIVE_SUPPORTED TRUE)
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endif()
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enable_language(RC)
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endmacro()
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macro(__enable_llvm_rc_preprocessing clang_option_prefix extra_pp_flags)
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# Feed the preprocessed rc file to llvm-rc
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if(CMAKE_RC_COMPILER_INIT MATCHES "llvm-rc" OR CMAKE_RC_COMPILER MATCHES "llvm-rc")
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if(DEFINED CMAKE_C_COMPILER_ID)
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set(CMAKE_RC_PREPROCESSOR CMAKE_C_COMPILER)
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elseif(DEFINED CMAKE_CXX_COMPILER_ID)
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set(CMAKE_RC_PREPROCESSOR CMAKE_CXX_COMPILER)
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endif()
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if(DEFINED CMAKE_RC_PREPROCESSOR)
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set(CMAKE_DEPFILE_FLAGS_RC "${clang_option_prefix}-MD ${clang_option_prefix}-MF ${clang_option_prefix}<DEP_FILE>")
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# The <FLAGS> are passed to the preprocess and the resource compiler to pick
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# up the eventual -D / -C options passed through the CMAKE_RC_FLAGS.
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set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_COMMAND> -E cmake_llvm_rc <SOURCE> <OBJECT>.pp <${CMAKE_RC_PREPROCESSOR}> <DEFINES> -DRC_INVOKED <INCLUDES> <FLAGS> ${extra_pp_flags} -E -- <SOURCE> ++ <CMAKE_RC_COMPILER> <DEFINES> -I <SOURCE_DIR> <INCLUDES> <FLAGS> /fo <OBJECT> <OBJECT>.pp")
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if(CMAKE_GENERATOR MATCHES "Ninja")
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set(CMAKE_NINJA_CMCLDEPS_RC 0)
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set(CMAKE_NINJA_DEP_TYPE_RC gcc)
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endif()
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unset(CMAKE_RC_PREPROCESSOR)
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endif()
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endif()
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endmacro()
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if("x${CMAKE_C_SIMULATE_ID}" STREQUAL "xMSVC"
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OR "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
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if ( DEFINED CMAKE_C_COMPILER_ID AND DEFINED CMAKE_CXX_COMPILER_ID
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AND NOT "x${CMAKE_C_COMPILER_ID}" STREQUAL "x${CMAKE_CXX_COMPILER_ID}")
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message(FATAL_ERROR "The current configuration mixes Clang and MSVC or "
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"some other CL compatible compiler tool. This is not supported. "
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"Use either clang or MSVC as both C and C++ compilers.")
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endif()
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if ( DEFINED CMAKE_C_COMPILER_FRONTEND_VARIANT AND DEFINED CMAKE_CXX_COMPILER_FRONTEND_VARIANT
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AND NOT "x${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "x${CMAKE_CXX_COMPILER_FRONTEND_VARIANT}")
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message(FATAL_ERROR "The current configuration uses the Clang compiler "
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"tool with mixed frontend variants, both the GNU and in MSVC CL "
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"like variants. This is not supported. Use either clang/clang++ "
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"or clang-cl as both C and C++ compilers.")
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endif()
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if(NOT CMAKE_RC_COMPILER_INIT)
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# Check if rc is already in the path
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# This may happen in cases where the user is already in a visual studio environment when CMake is invoked
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find_program(__RC_COMPILER_PATH NAMES rc)
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# Default to rc if it's available, otherwise fall back to llvm-rc
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if(__RC_COMPILER_PATH)
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set(CMAKE_RC_COMPILER_INIT rc)
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else()
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find_program(__RC_COMPILER_PATH NAMES llvm-rc)
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if(__RC_COMPILER_PATH)
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set(CMAKE_RC_COMPILER_INIT llvm-rc)
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endif()
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endif()
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unset(__RC_COMPILER_PATH CACHE)
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endif()
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if ( "x${CMAKE_CXX_COMPILER_FRONTEND_VARIANT}" STREQUAL "xMSVC" OR "x${CMAKE_C_COMPILER_FRONTEND_VARIANT}" STREQUAL "xMSVC" )
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include(Platform/Windows-MSVC)
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# Set the clang option forwarding prefix for clang-cl usage in the llvm-rc processing stage
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__enable_llvm_rc_preprocessing("-clang:" "")
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macro(__windows_compiler_clang_base lang)
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set(_COMPILE_${lang} "${_COMPILE_${lang}_MSVC}")
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__windows_compiler_msvc(${lang})
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unset(CMAKE_${lang}_COMPILE_OPTIONS_MSVC_DEBUG_INFORMATION_FORMAT_EditAndContinue) # -ZI not supported by Clang
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set(CMAKE_${lang}_COMPILE_OPTIONS_WARNING_AS_ERROR "-WX")
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set(CMAKE_INCLUDE_SYSTEM_FLAG_${lang} "-imsvc")
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endmacro()
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else()
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cmake_policy(GET CMP0091 __WINDOWS_CLANG_CMP0091)
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if(__WINDOWS_CLANG_CMP0091 STREQUAL "NEW")
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set(CMAKE_MSVC_RUNTIME_LIBRARY_DEFAULT "MultiThreaded$<$<CONFIG:Debug>:Debug>DLL")
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else()
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set(CMAKE_MSVC_RUNTIME_LIBRARY_DEFAULT "")
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endif()
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unset(__WINDOWS_CLANG_CMP0091)
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cmake_policy(GET CMP0141 __WINDOWS_MSVC_CMP0141)
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if(__WINDOWS_MSVC_CMP0141 STREQUAL "NEW")
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set(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT_DEFAULT "$<$<CONFIG:Debug,RelWithDebInfo>:Embedded>")
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else()
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set(CMAKE_MSVC_DEBUG_INFORMATION_FORMAT_DEFAULT "")
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endif()
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unset(__WINDOWS_MSVC_CMP0141)
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set(CMAKE_BUILD_TYPE_INIT Debug)
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__enable_llvm_rc_preprocessing("" "-x c")
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macro(__windows_compiler_clang_base lang)
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__windows_compiler_clang_gnu(${lang})
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endmacro()
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endif()
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else()
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include(Platform/Windows-GNU)
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__enable_llvm_rc_preprocessing("" "-x c")
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macro(__windows_compiler_clang_base lang)
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__windows_compiler_gnu(${lang})
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endmacro()
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endif()
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macro(__windows_compiler_clang lang)
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if(CMAKE_${lang}_COMPILER_VERSION VERSION_LESS 3.4.0)
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set(CMAKE_${lang}_COMPILE_OPTIONS_TARGET "-target ")
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else()
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set(CMAKE_${lang}_COMPILE_OPTIONS_TARGET "--target=")
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endif()
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__windows_compiler_clang_base(${lang})
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endmacro()
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