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-rw-r--r--cmake/base-config-ix.cmake162
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diff --git a/cmake/base-config-ix.cmake b/cmake/base-config-ix.cmake
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+# The CompilerRT build system requires CMake version 2.8.8 or higher in order
+# to use its support for building convenience "libraries" as a collection of
+# .o files. This is particularly useful in producing larger, more complex
+# runtime libraries.
+
+include(CheckIncludeFile)
+check_include_file(unwind.h HAVE_UNWIND_H)
+
+# Top level target used to build all compiler-rt libraries.
+add_custom_target(compiler-rt ALL)
+
+if (NOT COMPILER_RT_STANDALONE_BUILD)
+ # Compute the Clang version from the LLVM version.
+ # FIXME: We should be able to reuse CLANG_VERSION variable calculated
+ # in Clang cmake files, instead of copying the rules here.
+ string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION
+ ${PACKAGE_VERSION})
+ # Setup the paths where compiler-rt runtimes and headers should be stored.
+ set(COMPILER_RT_OUTPUT_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/clang/${CLANG_VERSION})
+ set(COMPILER_RT_EXEC_OUTPUT_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
+ set(COMPILER_RT_INSTALL_PATH lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION})
+ option(COMPILER_RT_INCLUDE_TESTS "Generate and build compiler-rt unit tests."
+ ${LLVM_INCLUDE_TESTS})
+ option(COMPILER_RT_ENABLE_WERROR "Fail and stop if warning is triggered"
+ ${LLVM_ENABLE_WERROR})
+ # Use just-built Clang to compile/link tests on all platforms, except for
+ # Windows where we need to use clang-cl instead.
+ if(NOT MSVC)
+ set(COMPILER_RT_TEST_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang)
+ set(COMPILER_RT_TEST_CXX_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++)
+ else()
+ set(COMPILER_RT_TEST_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang.exe)
+ set(COMPILER_RT_TEST_CXX_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++.exe)
+ endif()
+else()
+ # Take output dir and install path from the user.
+ set(COMPILER_RT_OUTPUT_DIR ${CMAKE_CURRENT_BINARY_DIR} CACHE PATH
+ "Path where built compiler-rt libraries should be stored.")
+ set(COMPILER_RT_EXEC_OUTPUT_DIR ${CMAKE_CURRENT_BINARY_DIR}/bin CACHE PATH
+ "Path where built compiler-rt executables should be stored.")
+ set(COMPILER_RT_INSTALL_PATH ${CMAKE_INSTALL_PREFIX} CACHE PATH
+ "Path where built compiler-rt libraries should be installed.")
+ option(COMPILER_RT_INCLUDE_TESTS "Generate and build compiler-rt unit tests." OFF)
+ option(COMPILER_RT_ENABLE_WERROR "Fail and stop if warning is triggered" OFF)
+ # Use a host compiler to compile/link tests.
+ set(COMPILER_RT_TEST_COMPILER ${CMAKE_C_COMPILER} CACHE PATH "Compiler to use for testing")
+ set(COMPILER_RT_TEST_CXX_COMPILER ${CMAKE_CXX_COMPILER} CACHE PATH "C++ Compiler to use for testing")
+endif()
+
+if("${COMPILER_RT_TEST_COMPILER}" MATCHES "clang[+]*$")
+ set(COMPILER_RT_TEST_COMPILER_ID Clang)
+elseif("${COMPILER_RT_TEST_COMPILER}" MATCHES "clang.*.exe$")
+ set(COMPILER_RT_TEST_COMPILER_ID Clang)
+else()
+ set(COMPILER_RT_TEST_COMPILER_ID GNU)
+endif()
+
+if ("${COMPILER_RT_DEFAULT_TARGET_ABI}" STREQUAL "androideabi")
+ set(ANDROID 1)
+endif()
+
+string(TOLOWER ${CMAKE_SYSTEM_NAME} COMPILER_RT_OS_DIR)
+set(COMPILER_RT_LIBRARY_OUTPUT_DIR
+ ${COMPILER_RT_OUTPUT_DIR}/lib/${COMPILER_RT_OS_DIR})
+set(COMPILER_RT_LIBRARY_INSTALL_DIR
+ ${COMPILER_RT_INSTALL_PATH}/lib/${COMPILER_RT_OS_DIR})
+
+if(APPLE)
+ # On Darwin if /usr/include doesn't exist, the user probably has Xcode but not
+ # the command line tools. If this is the case, we need to find the OS X
+ # sysroot to pass to clang.
+ if(NOT EXISTS /usr/include)
+ execute_process(COMMAND xcodebuild -version -sdk macosx Path
+ OUTPUT_VARIABLE OSX_SYSROOT
+ ERROR_QUIET
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
+ set(OSX_SYSROOT_FLAG "-isysroot${OSX_SYSROOT}")
+ endif()
+
+ option(COMPILER_RT_ENABLE_IOS "Enable building for iOS" Off)
+ option(COMPILER_RT_ENABLE_WATCHOS "Enable building for watchOS - Experimental" Off)
+ option(COMPILER_RT_ENABLE_TVOS "Enable building for tvOS - Experimental" Off)
+endif()
+
+macro(test_targets)
+ # Find and run MSVC (not clang-cl) and get its version. This will tell clang-cl
+ # what version of MSVC to pretend to be so that the STL works.
+ set(MSVC_VERSION_FLAG "")
+ if (MSVC)
+ # Find and run MSVC (not clang-cl) and get its version. This will tell
+ # clang-cl what version of MSVC to pretend to be so that the STL works.
+ execute_process(COMMAND "$ENV{VSINSTALLDIR}/VC/bin/cl.exe"
+ OUTPUT_QUIET
+ ERROR_VARIABLE MSVC_COMPAT_VERSION
+ )
+ string(REGEX REPLACE "^.*Compiler Version ([0-9.]+) for .*$" "\\1"
+ MSVC_COMPAT_VERSION "${MSVC_COMPAT_VERSION}")
+ if (MSVC_COMPAT_VERSION MATCHES "^[0-9].+$")
+ set(MSVC_VERSION_FLAG "-fms-compatibility-version=${MSVC_COMPAT_VERSION}")
+ # Add this flag into the host build if this is clang-cl.
+ if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+ append("${MSVC_VERSION_FLAG}" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
+ endif()
+ endif()
+ endif()
+
+ # Generate the COMPILER_RT_SUPPORTED_ARCH list.
+ if(ANDROID)
+ # Examine compiler output to determine target architecture.
+ detect_target_arch()
+ set(COMPILER_RT_OS_SUFFIX "-android")
+ elseif(NOT APPLE) # Supported archs for Apple platforms are generated later
+ if("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "i[2-6]86|x86|amd64")
+ if(NOT MSVC)
+ test_target_arch(x86_64 "" "-m64")
+ # FIXME: We build runtimes for both i686 and i386, as "clang -m32" may
+ # target different variant than "$CMAKE_C_COMPILER -m32". This part should
+ # be gone after we resolve PR14109.
+ test_target_arch(i686 __i686__ "-m32")
+ test_target_arch(i386 __i386__ "-m32")
+ else()
+ if (CMAKE_SIZEOF_VOID_P EQUAL 4)
+ test_target_arch(i386 "" "${MSVC_VERSION_FLAG}")
+ else()
+ test_target_arch(x86_64 "" "${MSVC_VERSION_FLAG}")
+ endif()
+ endif()
+ elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "powerpc")
+ TEST_BIG_ENDIAN(HOST_IS_BIG_ENDIAN)
+ if(HOST_IS_BIG_ENDIAN)
+ test_target_arch(powerpc64 "" "-m64")
+ else()
+ test_target_arch(powerpc64le "" "-m64")
+ endif()
+ elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "s390x")
+ test_target_arch(s390x "" "")
+ elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "mipsel|mips64el")
+ # Gcc doesn't accept -m32/-m64 so we do the next best thing and use
+ # -mips32r2/-mips64r2. We don't use -mips1/-mips3 because we want to match
+ # clang's default CPU's. In the 64-bit case, we must also specify the ABI
+ # since the default ABI differs between gcc and clang.
+ # FIXME: Ideally, we would build the N32 library too.
+ test_target_arch(mipsel "" "-mips32r2" "--target=mipsel-linux-gnu")
+ test_target_arch(mips64el "" "-mips64r2" "--target=mips64el-linux-gnu" "-mabi=n64")
+ elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "mips")
+ test_target_arch(mips "" "-mips32r2" "--target=mips-linux-gnu")
+ test_target_arch(mips64 "" "-mips64r2" "--target=mips64-linux-gnu" "-mabi=n64")
+ elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "arm")
+ test_target_arch(arm "" "-march=armv7-a" "-mfloat-abi=soft")
+ test_target_arch(armhf "" "-march=armv7-a" "-mfloat-abi=hard")
+ elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "aarch32")
+ test_target_arch(aarch32 "" "-march=armv8-a")
+ elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "aarch64")
+ test_target_arch(aarch64 "" "-march=armv8-a")
+ elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "wasm32")
+ test_target_arch(wasm32 "" "--target=wasm32-unknown-unknown")
+ elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "wasm64")
+ test_target_arch(wasm64 "" "--target=wasm64-unknown-unknown")
+ endif()
+ set(COMPILER_RT_OS_SUFFIX "")
+ endif()
+endmacro()