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https://github.com/isar/libmdbx.git
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mdbx-cmake: update/sync compiler module (clang LTO, exceptions for MSVC).
Change-Id: Ic132d4cb4095a141436599047b80f8a0b8ac4f6b
This commit is contained in:
Leonid Yuriev
parent
e008f3132d
commit
cda94ee61d
@ -64,11 +64,11 @@ endmacro(check_compiler_flag)
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# We support building with Clang and gcc. First check
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# what we're using for build.
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if(CMAKE_C_COMPILER_LOADED AND CMAKE_C_COMPILER_ID STREQUAL "Clang")
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if(CMAKE_C_COMPILER_LOADED AND CMAKE_C_COMPILER_ID MATCHES ".*[Cc][Ll][Aa][Nn][Gg].*")
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set(CMAKE_COMPILER_IS_CLANG ON)
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set(CMAKE_COMPILER_IS_GNUCC OFF)
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endif()
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if(CMAKE_CXX_COMPILER_LOADED AND CMAKE_CXx_COMPILER_ID STREQUAL "Clang")
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if(CMAKE_CXX_COMPILER_LOADED AND CMAKE_CXX_COMPILER_ID MATCHES ".*[Cc][Ll][Aa][Nn][Gg].*")
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set(CMAKE_COMPILER_IS_CLANG ON)
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set(CMAKE_COMPILER_IS_GNUCXX OFF)
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endif()
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@ -161,37 +161,47 @@ if(NOT DEFINED IOS)
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endif()
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endif()
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if(NOT DEFINED CMAKE_TARGET_BITNESS)
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if (CMAKE_SIZEOF_VOID_P LESS 4)
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set(CMAKE_TARGET_BITNESS 16)
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elseif (CMAKE_SIZEOF_VOID_P LESS 8)
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set(CMAKE_TARGET_BITNESS 32)
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else()
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set(CMAKE_TARGET_BITNESS 64)
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endif()
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endif()
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if(CMAKE_COMPILER_IS_ELBRUSC OR CMAKE_SYSTEM_PROCESSOR MATCHES "e2k.*|E2K.*|elbrus.*|ELBRUS.*")
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set(E2K TRUE)
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set(CMAKE_SYSTEM_ARCH "Elbrus")
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elseif((MSVC64 OR MINGW64) AND CMAKE_SIZEOF_VOID_P EQUAL 8)
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elseif((MSVC64 OR MINGW64) AND CMAKE_TARGET_BITNESS EQUAL 64)
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set(X86_64 TRUE)
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set(CMAKE_SYSTEM_ARCH "x86_64")
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elseif(MINGW OR (MSVC AND NOT CMAKE_CROSSCOMPILING))
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set(X86_32 TRUE)
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set(CMAKE_SYSTEM_ARCH "x86")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*" AND CMAKE_SIZEOF_VOID_P EQUAL 8)
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*" AND CMAKE_TARGET_BITNESS EQUAL 64)
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set(X86_64 TRUE)
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set(CMAKE_SYSTEM_ARCH "x86_64")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i686.*|i386.*|x86.*")
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set(X86_32 TRUE)
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set(CMAKE_SYSTEM_ARCH "x86")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*|ARM64.*)" AND CMAKE_SIZEOF_VOID_P EQUAL 8)
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*|ARM64.*)" AND CMAKE_TARGET_BITNESS EQUAL 64)
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set(AARCH64 TRUE)
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set(CMAKE_SYSTEM_ARCH "ARM64")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm.*|ARM.*)")
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set(ARM32 TRUE)
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set(CMAKE_SYSTEM_ARCH "ARM")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64le.*" AND CMAKE_SIZEOF_VOID_P EQUAL 8)
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64le.*" AND CMAKE_TARGET_BITNESS EQUAL 64)
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set(PPC64LE TRUE)
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set(CMAKE_SYSTEM_ARCH "PPC64LE")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64.*" AND CMAKE_SIZEOF_VOID_P EQUAL 8)
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64.*" AND CMAKE_TARGET_BITNESS EQUAL 64)
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set(PPC64 TRUE)
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set(CMAKE_SYSTEM_ARCH "PPC64")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc).*")
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set(PPC32 TRUE)
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set(CMAKE_SYSTEM_ARCH "PPC")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(mips|MIPS)64.*" AND CMAKE_SIZEOF_VOID_P EQUAL 8)
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(mips|MIPS)64.*" AND CMAKE_TARGET_BITNESS EQUAL 64)
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set(MIPS64 TRUE)
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set(CMAKE_SYSTEM_ARCH "MIPS64")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(mips|MIPS).*")
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@ -228,10 +238,17 @@ else()
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# Check for an omp support
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set(CMAKE_REQUIRED_FLAGS "-fopenmp -Werror")
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check_c_source_compiles("int main(void) {
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#pragma omp parallel
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return 0;
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}" HAVE_OPENMP)
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if(CMAKE_CXX_COMPILER_LOADED)
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check_cxx_source_compiles("int main(void) {
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#pragma omp parallel
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return 0;
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}" HAVE_OPENMP)
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else()
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check_c_source_compiles("int main(void) {
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#pragma omp parallel
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return 0;
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}" HAVE_OPENMP)
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endif()
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set(CMAKE_REQUIRED_FLAGS "")
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endif()
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@ -352,7 +369,7 @@ if(CMAKE_COMPILER_IS_CLANG)
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endif()
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if(NOT CMAKE_CLANG_LD AND clang_bindirs)
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find_program(CMAKE_CLANG_LD NAMES lld-link ld.lld ld64.lld lld-link llvm-link link llvm-ld ld PATHS ${clang_bindirs} NO_DEFAULT_PATH)
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find_program(CMAKE_CLANG_LD NAMES lld-link ld.lld "ld${CMAKE_TARGET_BITNESS}.lld" lld llvm-link llvm-ld PATHS ${clang_bindirs} NO_DEFAULT_PATH)
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endif()
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if(NOT CMAKE_CLANG_AR AND clang_bindirs)
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find_program(CMAKE_CLANG_AR NAMES llvm-ar ar PATHS ${clang_bindirs} NO_DEFAULT_PATH)
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@ -371,14 +388,21 @@ if(CMAKE_COMPILER_IS_CLANG)
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if(NOT CLANG_LTO_PLUGIN AND clang_libdirs)
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find_file(CLANG_LTO_PLUGIN ${clang_lto_plugin_name} PATHS ${clang_libdirs} NO_DEFAULT_PATH)
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endif()
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if(CLANG_LTO_PLUGIN)
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message(STATUS "Found CLANG/LLVM's plugin for LTO: ${CLANG_LTO_PLUGIN}")
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else()
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message(STATUS "Could NOT find CLANG/LLVM's plugin (${clang_lto_plugin_name}) for LTO.")
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endif()
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if(CMAKE_CLANG_LD AND CMAKE_CLANG_AR AND CMAKE_CLANG_NM AND CMAKE_CLANG_RANLIB)
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message(STATUS "Found CLANG/LLVM's binutils for LTO: ${CMAKE_CLANG_AR}, ${CMAKE_CLANG_RANLIB}")
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if(CMAKE_CLANG_LD)
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message(STATUS "Found CLANG/LLVM's linker for LTO: ${CMAKE_CLANG_LD}")
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else()
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message(STATUS "Could NOT find CLANG/LLVM's linker (lld, llvm-ld, llvm-link) for LTO.")
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endif()
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if(CMAKE_CLANG_AR AND CMAKE_CLANG_RANLIB AND CMAKE_CLANG_NM)
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message(STATUS "Found CLANG/LLVM's binutils for LTO: ${CMAKE_CLANG_AR}, ${CMAKE_CLANG_RANLIB}, ${CMAKE_CLANG_NM}")
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else()
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message(STATUS "Could NOT find CLANG/LLVM's binutils (ar, ranlib, nm) for LTO.")
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endif()
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@ -390,12 +414,19 @@ if(CMAKE_COMPILER_IS_CLANG)
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unset(clang_search_dirs)
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endif()
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if((CLANG_LTO_PLUGIN AND CMAKE_LD_GOLD) OR
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(CMAKE_CLANG_LD AND CMAKE_CLANG_AR AND CMAKE_CLANG_NM AND CMAKE_CLANG_RANLIB))
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if (CMAKE_CLANG_AR AND CMAKE_CLANG_NM AND CMAKE_CLANG_RANLIB
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AND ((CLANG_LTO_PLUGIN AND CMAKE_LD_GOLD)
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OR (CMAKE_CLANG_LD
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AND NOT (CMAKE_HOST_SYSTEM_NAME STREQUAL "Linux"
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AND CMAKE_SYSTEM_NAME STREQUAL "Linux"))
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OR APPLE))
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set(CLANG_LTO_AVAILABLE TRUE)
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message(STATUS "Link-Time Optimization by CLANG/LLVM is available")
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elseif(CMAKE_TOOLCHAIN_FILE AND NOT CMAKE_${CMAKE_PRIMARY_LANG}_COMPILER_VERSION VERSION_LESS 7.0)
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set(CLANG_LTO_AVAILABLE TRUE)
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if(NOT CMAKE_CLANG_LD)
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set(CMAKE_CLANG_LD ${CMAKE_LINKER})
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endif()
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if(NOT CMAKE_CLANG_AR)
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set(CMAKE_CLANG_AR ${CMAKE_AR})
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endif()
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@ -454,9 +485,6 @@ endif()
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macro(setup_compile_flags)
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# save initial C/CXX flags
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if(NOT INITIAL_CMAKE_FLAGS_SAVED)
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if(MSVC)
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string(REGEX REPLACE "^(.*)(/EHsc)( *)(.*)$" "\\1/EHs\\3\\4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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endif()
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set(INITIAL_CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} CACHE STRING "Initial CMake's flags" FORCE)
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set(INITIAL_CMAKE_C_FLAGS ${CMAKE_C_FLAGS} CACHE STRING "Initial CMake's flags" FORCE)
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set(INITIAL_CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} CACHE STRING "Initial CMake's flags" FORCE)
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@ -480,6 +508,22 @@ macro(setup_compile_flags)
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if(CC_HAS_FCXX_EXCEPTIONS)
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add_compile_flags("CXX" "-fcxx-exceptions -frtti")
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endif()
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if(MSVC)
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# checks for /EHa or /clr options exists,
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# i.e. is enabled structured async WinNT exceptions
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string(REGEX MATCH "^(.* )*[-/]EHc*a( .*)*$" msvc_async_eh_enabled "${CXX_FLAGS}" "${C_FLAGS}")
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string(REGEX MATCH "^(.* )*[-/]clr( .*)*$" msvc_clr_enabled "${CXX_FLAGS}" "${C_FLAGS}")
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# remote any /EH? options
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string(REGEX REPLACE "( *[-/]-*EH[csa]+ *)+" "" CXX_FLAGS "${CXX_FLAGS}")
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string(REGEX REPLACE "( *[-/]-*EH[csa]+ *)+" "" C_FLAGS "${C_FLAGS}")
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if (msvc_clr_enabled STREQUAL "")
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if(NOT msvc_async_eh_enabled STREQUAL "")
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add_compile_flags("C;CXX" "/EHa")
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else()
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add_compile_flags("C;CXX" "/EHsc")
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endif()
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endif()
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endif(MSVC)
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if(CC_HAS_WNO_ATTRIBUTES AND CMAKE_COMPILER_IS_GNU${CMAKE_PRIMARY_LANG}
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AND CMAKE_${CMAKE_PRIMARY_LANG}_COMPILER_VERSION VERSION_LESS 9)
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