[CMake] Support platform building builtins without a full toolchain

Summary:
This patch adds support for building lib/builtins without a fully functioning toolchain. It allows you to bootstrap a cross-compiler, which previously couldn't be done with CMake.

This patch contains the following specific changes:

* Split builtin-specific code out of config-ix.cmake into builtin-config-ix.cmake
* Split some common CMake functionality needed by both builtins and sanitizers into base-config-ix.cmake
* Made lib/builtins/CMakeLists.txt able to be a top-level CMake configuration

I have tested this on Darwin targeting embedded Darwin, and on FreeBSD x86_64 targeting FreeBSD AArch64.

This patch depends on http://reviews.llvm.org/D19692, and is the last part of http://reviews.llvm.org/D16653.

Reviewers: samsonov, iains, jroelofs

Subscribers: compnerd, aemerson, tberghammer, danalbert, srhines, emaste, llvm-commits

Differential Revision: http://reviews.llvm.org/D19742

llvm-svn: 268977
This commit is contained in:
Chris Bieneman 2016-05-09 21:45:52 +00:00
parent 78db5a9dca
commit c49e5e336b
5 changed files with 359 additions and 198 deletions

View File

@ -46,51 +46,20 @@ else()
endif()
endif()
# Top level target used to build all compiler-rt libraries.
add_custom_target(compiler-rt ALL)
# Add path for custom compiler-rt modules.
list(INSERT CMAKE_MODULE_PATH 0
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
)
include(base-config-ix)
option(COMPILER_RT_BUILD_BUILTINS "Build builtins" ON)
mark_as_advanced(COMPILER_RT_BUILD_BUILTINS)
option(COMPILER_RT_BUILD_SANITIZERS "Build sanitizers" ON)
mark_as_advanced(COMPILER_RT_BUILD_SANITIZERS)
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 ${CMAKE_CXX_COMPILER} CACHE PATH "C++ Compiler to use for testing")
if (COMPILER_RT_STANDALONE_BUILD)
if (NOT LLVM_CONFIG_PATH)
find_program(LLVM_CONFIG_PATH "llvm-config"
DOC "Path to llvm-config binary")
@ -138,14 +107,6 @@ else()
set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
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()
set(COMPILER_RT_DEFAULT_TARGET_TRIPLE ${TARGET_TRIPLE} CACHE STRING
"Default triple for which compiler-rt runtimes will be built.")
if(DEFINED COMPILER_RT_TEST_TARGET_TRIPLE)
@ -165,23 +126,6 @@ if(NOT COMPILER_RT_DEFAULT_TARGET_TRIPLE STREQUAL TARGET_TRIPLE)
else()
set(COMPILER_RT_HAS_EXPLICIT_DEFAULT_TARGET_TRIPLE FALSE)
endif()
if ("${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})
# Add path for custom compiler-rt modules.
set(CMAKE_MODULE_PATH
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
${CMAKE_MODULE_PATH}
)
include(CompilerRTUtils)
set(COMPILER_RT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
@ -206,8 +150,6 @@ pythonize_bool(COMPILER_RT_DEBUG)
#================================
# Setup Compiler Flags
#================================
include(CheckIncludeFile)
check_include_file(unwind.h HAVE_UNWIND_H)
include(config-ix)

View File

@ -0,0 +1,162 @@
# 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()

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@ -0,0 +1,169 @@
include(BuiltinTests)
# Make all the tests only check the compiler
set(TEST_COMPILE_ONLY On)
builtin_check_c_compiler_flag(-fPIC COMPILER_RT_HAS_FPIC_FLAG)
builtin_check_c_compiler_flag(-fPIE COMPILER_RT_HAS_FPIE_FLAG)
builtin_check_c_compiler_flag(-fno-builtin COMPILER_RT_HAS_FNO_BUILTIN_FLAG)
builtin_check_c_compiler_flag(-std=c99 COMPILER_RT_HAS_STD_C99_FLAG)
builtin_check_c_compiler_flag(-fvisibility=hidden COMPILER_RT_HAS_VISIBILITY_HIDDEN_FLAG)
builtin_check_c_compiler_flag(-fomit-frame-pointer COMPILER_RT_HAS_OMIT_FRAME_POINTER_FLAG)
builtin_check_c_compiler_flag(-ffreestanding COMPILER_RT_HAS_FREESTANDING_FLAG)
builtin_check_c_compiler_flag(-mfloat-abi=soft COMPILER_RT_HAS_FLOAT_ABI_SOFT_FLAG)
builtin_check_c_compiler_flag(-mfloat-abi=hard COMPILER_RT_HAS_FLOAT_ABI_HARD_FLAG)
builtin_check_c_compiler_flag(-static COMPILER_RT_HAS_STATIC_FLAG)
set(ARM64 aarch64)
set(ARM32 arm armhf)
set(X86 i386 i686)
set(X86_64 x86_64)
set(MIPS32 mips mipsel)
set(MIPS64 mips64 mips64el)
set(PPC64 powerpc64 powerpc64le)
set(WASM32 wasm32)
set(WASM64 wasm64)
if(APPLE)
set(ARM64 arm64)
set(ARM32 armv7 armv7k armv7s)
set(X86_64 x86_64 x86_64h)
endif()
set(ALL_BUILTIN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
${MIPS32} ${MIPS64} ${WASM32} ${WASM64})
include(CompilerRTUtils)
include(CompilerRTDarwinUtils)
if(APPLE)
find_darwin_sdk_dir(DARWIN_osx_SYSROOT macosx)
find_darwin_sdk_dir(DARWIN_iossim_SYSROOT iphonesimulator)
find_darwin_sdk_dir(DARWIN_ios_SYSROOT iphoneos)
find_darwin_sdk_dir(DARWIN_watchossim_SYSROOT watchsimulator)
find_darwin_sdk_dir(DARWIN_watchos_SYSROOT watchos)
find_darwin_sdk_dir(DARWIN_tvossim_SYSROOT appletvsimulator)
find_darwin_sdk_dir(DARWIN_tvos_SYSROOT appletvos)
set(DARWIN_EMBEDDED_PLATFORMS)
set(DARWIN_osx_BUILTIN_MIN_VER 10.5)
set(DARWIN_osx_BUILTIN_MIN_VER_FLAG
-mmacosx-version-min=${DARWIN_osx_BUILTIN_MIN_VER})
if(COMPILER_RT_ENABLE_IOS)
list(APPEND DARWIN_EMBEDDED_PLATFORMS ios)
set(DARWIN_ios_MIN_VER_FLAG -miphoneos-version-min)
set(DARWIN_ios_BUILTIN_MIN_VER 6.0)
set(DARWIN_ios_BUILTIN_MIN_VER_FLAG
${DARWIN_ios_MIN_VER_FLAG}=${DARWIN_ios_BUILTIN_MIN_VER})
endif()
if(COMPILER_RT_ENABLE_WATCHOS)
list(APPEND DARWIN_EMBEDDED_PLATFORMS watchos)
set(DARWIN_watchos_MIN_VER_FLAG -mwatchos-version-min)
set(DARWIN_watchos_BUILTIN_MIN_VER 2.0)
set(DARWIN_watchos_BUILTIN_MIN_VER_FLAG
${DARWIN_watchos_MIN_VER_FLAG}=${DARWIN_watchos_BUILTIN_MIN_VER})
endif()
if(COMPILER_RT_ENABLE_TVOS)
list(APPEND DARWIN_EMBEDDED_PLATFORMS tvos)
set(DARWIN_tvos_MIN_VER_FLAG -mtvos-version-min)
set(DARWIN_tvos_BUILTIN_MIN_VER 9.0)
set(DARWIN_tvos_BUILTIN_MIN_VER_FLAG
${DARWIN_tvos_MIN_VER_FLAG}=${DARWIN_tvos_BUILTIN_MIN_VER})
endif()
set(BUILTIN_SUPPORTED_OS osx)
# We're setting the flag manually for each target OS
set(CMAKE_OSX_DEPLOYMENT_TARGET "")
if(NOT DARWIN_osx_ARCHS)
set(DARWIN_osx_ARCHS i386 x86_64 x86_64h)
endif()
set(DARWIN_sim_ARCHS i386 x86_64)
set(DARWIN_device_ARCHS armv7 armv7s armv7k arm64)
message(STATUS "OSX supported arches: ${DARWIN_osx_ARCHS}")
foreach(arch ${DARWIN_osx_ARCHS})
list(APPEND COMPILER_RT_SUPPORTED_ARCH ${arch})
set(CAN_TARGET_${arch} 1)
endforeach()
# Need to build a 10.4 compatible libclang_rt
set(DARWIN_10.4_SYSROOT ${DARWIN_osx_SYSROOT})
set(DARWIN_10.4_BUILTIN_MIN_VER 10.4)
set(DARWIN_10.4_BUILTIN_MIN_VER_FLAG
-mmacosx-version-min=${DARWIN_10.4_BUILTIN_MIN_VER})
set(DARWIN_10.4_SKIP_CC_KEXT On)
darwin_test_archs(10.4 DARWIN_10.4_ARCHS i386 x86_64)
message(STATUS "OSX 10.4 supported builtin arches: ${DARWIN_10.4_ARCHS}")
if(DARWIN_10.4_ARCHS)
# don't include the Haswell slice in the 10.4 compatibility library
list(REMOVE_ITEM DARWIN_10.4_ARCHS x86_64h)
list(APPEND BUILTIN_SUPPORTED_OS 10.4)
endif()
foreach(platform ${DARWIN_EMBEDDED_PLATFORMS})
if(DARWIN_${platform}sim_SYSROOT)
set(DARWIN_${platform}sim_BUILTIN_MIN_VER
${DARWIN_${platform}_BUILTIN_MIN_VER})
set(DARWIN_${platform}sim_BUILTIN_MIN_VER_FLAG
${DARWIN_${platform}_BUILTIN_MIN_VER_FLAG})
set(DARWIN_${platform}sim_SKIP_CC_KEXT On)
set(test_arches ${DARWIN_sim_ARCHS})
if(DARWIN_${platform}sim_ARCHS)
set(test_arches DARWIN_${platform}sim_ARCHS)
endif()
darwin_test_archs(${platform}sim
DARWIN_${platform}sim_ARCHS
${test_arches})
message(STATUS "${platform} Simulator supported builtin arches: ${DARWIN_${platform}sim_ARCHS}")
if(DARWIN_${platform}sim_ARCHS)
list(APPEND BUILTIN_SUPPORTED_OS ${platform}sim)
endif()
foreach(arch ${DARWIN_${platform}sim_ARCHS})
list(APPEND COMPILER_RT_SUPPORTED_ARCH ${arch})
set(CAN_TARGET_${arch} 1)
endforeach()
endif()
if(DARWIN_${platform}_SYSROOT)
set(test_arches ${DARWIN_device_ARCHS})
if(DARWIN_${platform}_ARCHS)
set(test_arches DARWIN_${platform}_ARCHS)
endif()
darwin_test_archs(${platform}
DARWIN_${platform}_ARCHS
${test_arches})
message(STATUS "${platform} supported builtin arches: ${DARWIN_${platform}_ARCHS}")
if(DARWIN_${platform}_ARCHS)
list(APPEND BUILTIN_SUPPORTED_OS ${platform})
endif()
foreach(arch ${DARWIN_${platform}_ARCHS})
list(APPEND COMPILER_RT_SUPPORTED_ARCH ${arch})
set(CAN_TARGET_${arch} 1)
endforeach()
endif()
endforeach()
list_intersect(BUILTIN_SUPPORTED_ARCH ALL_BUILTIN_SUPPORTED_ARCH COMPILER_RT_SUPPORTED_ARCH)
else()
# If we're not building the builtins standalone, just rely on the tests in
# config-ix.cmake to tell us what to build. Otherwise we need to do some leg
# work here...
if(COMPILER_RT_BUILTINS_STANDALONE_BUILD)
test_targets()
endif()
# Architectures supported by compiler-rt libraries.
filter_available_targets(BUILTIN_SUPPORTED_ARCH
${ALL_BUILTIN_SUPPORTED_ARCH})
endif()
message(STATUS "Builtin supported architectures: ${BUILTIN_SUPPORTED_ARCH}")

View File

@ -142,82 +142,7 @@ if (NOT CMAKE_SIZEOF_VOID_P EQUAL 4 AND
message(FATAL_ERROR "Please use architecture with 4 or 8 byte pointers.")
endif()
# 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()
test_targets()
# Returns a list of architecture specific target cflags in @out_var list.
function(get_target_flags_for_arch arch out_var)
@ -253,8 +178,6 @@ if(APPLE)
set(X86_64 x86_64 x86_64h)
endif()
set(ALL_BUILTIN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
${MIPS32} ${MIPS64} ${WASM32} ${WASM64})
set(ALL_SANITIZER_COMMON_SUPPORTED_ARCH ${X86} ${X86_64} ${PPC64}
${ARM32} ${ARM64} ${MIPS32} ${MIPS64} ${S390X})
set(ALL_ASAN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
@ -274,21 +197,6 @@ set(ALL_ESAN_SUPPORTED_ARCH ${X86_64})
if(APPLE)
include(CompilerRTDarwinUtils)
# On Darwin if /usr/include doesn't exist, the user probably has Xcode but not
# the command line tools. If this is the case, we need to find the OS X
# sysroot to pass to clang.
if(NOT EXISTS /usr/include)
execute_process(COMMAND xcodebuild -version -sdk macosx Path
OUTPUT_VARIABLE OSX_SYSROOT
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
set(OSX_SYSROOT_FLAG "-isysroot${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)
find_darwin_sdk_dir(DARWIN_osx_SYSROOT macosx)
find_darwin_sdk_dir(DARWIN_iossim_SYSROOT iphonesimulator)
find_darwin_sdk_dir(DARWIN_ios_SYSROOT iphoneos)
@ -302,33 +210,23 @@ if(APPLE)
set(DARWIN_ios_MIN_VER_FLAG -miphoneos-version-min)
set(DARWIN_ios_SANITIZER_MIN_VER_FLAG
${DARWIN_ios_MIN_VER_FLAG}=7.0)
set(DARWIN_ios_BUILTIN_MIN_VER 6.0)
set(DARWIN_ios_BUILTIN_MIN_VER_FLAG
${DARWIN_ios_MIN_VER_FLAG}=${DARWIN_ios_BUILTIN_MIN_VER})
endif()
if(COMPILER_RT_ENABLE_WATCHOS)
list(APPEND DARWIN_EMBEDDED_PLATFORMS watchos)
set(DARWIN_watchos_MIN_VER_FLAG -mwatchos-version-min)
set(DARWIN_watchos_SANITIZER_MIN_VER_FLAG
${DARWIN_watchos_MIN_VER_FLAG}=2.0)
set(DARWIN_watchos_BUILTIN_MIN_VER 2.0)
set(DARWIN_watchos_BUILTIN_MIN_VER_FLAG
${DARWIN_watchos_MIN_VER_FLAG}=${DARWIN_watchos_BUILTIN_MIN_VER})
endif()
if(COMPILER_RT_ENABLE_TVOS)
list(APPEND DARWIN_EMBEDDED_PLATFORMS tvos)
set(DARWIN_tvos_MIN_VER_FLAG -mtvos-version-min)
set(DARWIN_tvos_SANITIZER_MIN_VER_FLAG
${DARWIN_tvos_MIN_VER_FLAG}=9.0)
set(DARWIN_tvos_BUILTIN_MIN_VER 9.0)
set(DARWIN_tvos_BUILTIN_MIN_VER_FLAG
${DARWIN_tvos_MIN_VER_FLAG}=${DARWIN_tvos_BUILTIN_MIN_VER})
endif()
# Note: In order to target x86_64h on OS X the minimum deployment target must
# be 10.8 or higher.
set(SANITIZER_COMMON_SUPPORTED_OS osx)
set(BUILTIN_SUPPORTED_OS osx)
set(PROFILE_SUPPORTED_OS osx)
set(TSAN_SUPPORTED_OS osx)
if(NOT SANITIZER_MIN_OSX_VERSION)
@ -366,9 +264,6 @@ if(APPLE)
set(DARWIN_osx_LINKFLAGS
${DARWIN_COMMON_LINKFLAGS}
-mmacosx-version-min=${SANITIZER_MIN_OSX_VERSION})
set(DARWIN_osx_BUILTIN_MIN_VER 10.5)
set(DARWIN_osx_BUILTIN_MIN_VER_FLAG
-mmacosx-version-min=${DARWIN_osx_BUILTIN_MIN_VER})
if(DARWIN_osx_SYSROOT)
list(APPEND DARWIN_osx_CFLAGS -isysroot ${DARWIN_osx_SYSROOT})
@ -389,22 +284,6 @@ if(APPLE)
set(CAN_TARGET_${arch} 1)
endforeach()
# Need to build a 10.4 compatible libclang_rt
set(DARWIN_10.4_SYSROOT ${DARWIN_osx_SYSROOT})
set(DARWIN_10.4_BUILTIN_MIN_VER 10.4)
set(DARWIN_10.4_BUILTIN_MIN_VER_FLAG
-mmacosx-version-min=${DARWIN_10.4_BUILTIN_MIN_VER})
set(DARWIN_10.4_SKIP_CC_KEXT On)
darwin_test_archs(10.4
DARWIN_10.4_ARCHS
${toolchain_arches})
message(STATUS "OSX 10.4 supported arches: ${DARWIN_10.4_ARCHS}")
if(DARWIN_10.4_ARCHS)
# don't include the Haswell slice in the 10.4 compatibility library
list(REMOVE_ITEM DARWIN_10.4_ARCHS x86_64h)
list(APPEND BUILTIN_SUPPORTED_OS 10.4)
endif()
foreach(platform ${DARWIN_EMBEDDED_PLATFORMS})
if(DARWIN_${platform}sim_SYSROOT)
set(DARWIN_${platform}sim_CFLAGS
@ -415,10 +294,6 @@ if(APPLE)
${DARWIN_COMMON_LINKFLAGS}
${DARWIN_${platform}_SANITIZER_MIN_VER_FLAG}
-isysroot ${DARWIN_${platform}sim_SYSROOT})
set(DARWIN_${platform}sim_BUILTIN_MIN_VER
${DARWIN_${platform}_BUILTIN_MIN_VER})
set(DARWIN_${platform}sim_BUILTIN_MIN_VER_FLAG
${DARWIN_${platform}_BUILTIN_MIN_VER_FLAG})
set(DARWIN_${platform}sim_SKIP_CC_KEXT On)
darwin_test_archs(${platform}sim
@ -427,7 +302,6 @@ if(APPLE)
message(STATUS "${platform} Simulator supported arches: ${DARWIN_${platform}sim_ARCHS}")
if(DARWIN_${platform}_ARCHS)
list(APPEND SANITIZER_COMMON_SUPPORTED_OS ${platform}sim)
list(APPEND BUILTIN_SUPPORTED_OS ${platform}sim)
list(APPEND PROFILE_SUPPORTED_OS ${platform}sim)
if(DARWIN_${platform}_SYSROOT_INTERNAL)
list(APPEND TSAN_SUPPORTED_OS ${platform}sim)
@ -455,7 +329,6 @@ if(APPLE)
message(STATUS "${platform} supported arches: ${DARWIN_${platform}_ARCHS}")
if(DARWIN_${platform}_ARCHS)
list(APPEND SANITIZER_COMMON_SUPPORTED_OS ${platform})
list(APPEND BUILTIN_SUPPORTED_OS ${platform})
list(APPEND PROFILE_SUPPORTED_OS ${platform})
endif()
foreach(arch ${DARWIN_${platform}_ARCHS})
@ -469,7 +342,6 @@ if(APPLE)
# for list_intersect
include(CompilerRTUtils)
list_intersect(BUILTIN_SUPPORTED_ARCH ALL_BUILTIN_SUPPORTED_ARCH toolchain_arches)
list_intersect(SANITIZER_COMMON_SUPPORTED_ARCH
ALL_SANITIZER_COMMON_SUPPORTED_ARCH
@ -509,8 +381,6 @@ if(APPLE)
SANITIZER_COMMON_SUPPORTED_ARCH)
else()
# Architectures supported by compiler-rt libraries.
filter_available_targets(BUILTIN_SUPPORTED_ARCH
${ALL_BUILTIN_SUPPORTED_ARCH})
filter_available_targets(SANITIZER_COMMON_SUPPORTED_ARCH
${ALL_SANITIZER_COMMON_SUPPORTED_ARCH})
# LSan and UBSan common files should be available on all architectures

View File

@ -2,9 +2,27 @@
# generic implementations of the core runtime library along with optimized
# architecture-specific code in various subdirectories.
if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
cmake_minimum_required(VERSION 2.8.12.1)
project(CompilerRTBuiltins C ASM)
set(COMPILER_RT_STANDALONE_BUILD TRUE)
set(COMPILER_RT_BUILTINS_STANDALONE_BUILD TRUE)
list(INSERT CMAKE_MODULE_PATH 0
"${CMAKE_SOURCE_DIR}/../../cmake"
"${CMAKE_SOURCE_DIR}/../../cmake/Modules")
include(base-config-ix)
include(CompilerRTUtils)
if(APPLE)
include(CompilerRTDarwinUtils)
endif()
include(AddCompilerRT)
endif()
include(builtin-config-ix)
# TODO: Need to add a mechanism for logging errors when builtin source files are
# added to a sub-directory and not this CMakeLists file.
set(GENERIC_SOURCES
absvdi2.c
absvsi2.c