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llvm-project/compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
Raul Tambre a72d462eb9 Re-apply "[CMake][compiler-rt][AArch64] Avoid preprocessing LSE builtins separately" 
aa772fc85e0f526615c78b9c3979c2be945a754c (D92530) has landed fixing relocations on Darwin.
3000c19df64f89ff319590f3a6e4d6b93d20983d (D93236) has landed working around an assembly parser bug on Darwin.
Previous quick-fix d9697c2e6b153ac7dc40a69450d9b672f71b1029 (D93198) included in this commit.

Invoking the preprocessor ourselves is fragile and would require us to replicate CMake's handling of definitions, compiler flags, etc for proper compatibility.
In my toolchain builds this notably resulted in a bunch of warnings from unused flags as my CMAKE_C_FLAGS includes CPU-specific optimization options.
Notably this part was already duplicating the logic for VISIBILITY_HIDDEN define.

Instead, symlink the files and set the proper set of defines on each.
This should also be faster as we avoid invoking the compiler multiple times.

Fixes https://llvm.org/PR48494

Differential Revision: https://reviews.llvm.org/D93278
2020-12-15 08:18:07 +02:00

573 lines
22 KiB
CMake
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include(CMakeParseArguments)
include(CompilerRTUtils)
include(BuiltinTests)
set(CMAKE_LIPO "lipo" CACHE PATH "path to the lipo tool")
# On OS X SDKs can be installed anywhere on the base system and xcode-select can
# set the default Xcode to use. This function finds the SDKs that are present in
# the current Xcode.
function(find_darwin_sdk_dir var sdk_name)
set(DARWIN_${sdk_name}_CACHED_SYSROOT "" CACHE STRING "Darwin SDK path for SDK ${sdk_name}.")
set(DARWIN_PREFER_PUBLIC_SDK OFF CACHE BOOL "Prefer Darwin public SDK, even when an internal SDK is present.")
if(DARWIN_${sdk_name}_CACHED_SYSROOT)
set(${var} ${DARWIN_${sdk_name}_CACHED_SYSROOT} PARENT_SCOPE)
return()
endif()
if(NOT DARWIN_PREFER_PUBLIC_SDK)
# Let's first try the internal SDK, otherwise use the public SDK.
execute_process(
COMMAND xcrun --sdk ${sdk_name}.internal --show-sdk-path
RESULT_VARIABLE result_process
OUTPUT_VARIABLE var_internal
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_FILE /dev/null
)
endif()
if((NOT result_process EQUAL 0) OR "" STREQUAL "${var_internal}")
execute_process(
COMMAND xcrun --sdk ${sdk_name} --show-sdk-path
RESULT_VARIABLE result_process
OUTPUT_VARIABLE var_internal
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_FILE /dev/null
)
else()
set(${var}_INTERNAL ${var_internal} PARENT_SCOPE)
endif()
if(result_process EQUAL 0)
set(${var} ${var_internal} PARENT_SCOPE)
endif()
message(STATUS "Checking DARWIN_${sdk_name}_SYSROOT - '${var_internal}'")
set(DARWIN_${sdk_name}_CACHED_SYSROOT ${var_internal} CACHE STRING "Darwin SDK path for SDK ${sdk_name}." FORCE)
endfunction()
function(find_darwin_sdk_version var sdk_name)
if (DARWIN_${sdk_name}_OVERRIDE_SDK_VERSION)
message(WARNING "Overriding ${sdk_name} SDK version to ${DARWIN_${sdk_name}_OVERRIDE_SDK_VERSION}")
set(${var} "${DARWIN_${sdk_name}_OVERRIDE_SDK_VERSION}" PARENT_SCOPE)
return()
endif()
set(result_process 1)
if(NOT DARWIN_PREFER_PUBLIC_SDK)
# Let's first try the internal SDK, otherwise use the public SDK.
execute_process(
COMMAND xcrun --sdk ${sdk_name}.internal --show-sdk-version
RESULT_VARIABLE result_process
OUTPUT_VARIABLE var_internal
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_FILE /dev/null
)
endif()
if((NOT ${result_process} EQUAL 0) OR "" STREQUAL "${var_internal}")
execute_process(
COMMAND xcrun --sdk ${sdk_name} --show-sdk-version
RESULT_VARIABLE result_process
OUTPUT_VARIABLE var_internal
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_FILE /dev/null
)
endif()
if(NOT result_process EQUAL 0)
message(FATAL_ERROR
"Failed to determine SDK version for \"${sdk_name}\" SDK")
endif()
# Check reported version looks sane.
if (NOT "${var_internal}" MATCHES "^[0-9]+\\.[0-9]+(\\.[0-9]+)?$")
message(FATAL_ERROR
"Reported SDK version \"${var_internal}\" does not look like a version")
endif()
set(${var} ${var_internal} PARENT_SCOPE)
endfunction()
# There isn't a clear mapping of what architectures are supported with a given
# target platform, but ld's version output does list the architectures it can
# link for.
function(darwin_get_toolchain_supported_archs output_var)
execute_process(
COMMAND "${CMAKE_LINKER}" -v
ERROR_VARIABLE LINKER_VERSION)
string(REGEX MATCH "configured to support archs: ([^\n]+)"
ARCHES_MATCHED "${LINKER_VERSION}")
if(ARCHES_MATCHED)
set(ARCHES "${CMAKE_MATCH_1}")
message(STATUS "Got ld supported ARCHES: ${ARCHES}")
string(REPLACE " " ";" ARCHES ${ARCHES})
else()
# If auto-detecting fails, fall back to a default set
message(WARNING "Detecting supported architectures from 'ld -v' failed. Returning default set.")
set(ARCHES "i386;x86_64;armv7;armv7s;arm64")
endif()
set(${output_var} ${ARCHES} PARENT_SCOPE)
endfunction()
# This function takes an OS and a list of architectures and identifies the
# subset of the architectures list that the installed toolchain can target.
function(darwin_test_archs os valid_archs)
if(${valid_archs})
message(STATUS "Using cached valid architectures for ${os}.")
return()
endif()
set(archs ${ARGN})
if(NOT TEST_COMPILE_ONLY)
message(STATUS "Finding valid architectures for ${os}...")
set(SIMPLE_C ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/src.c)
file(WRITE ${SIMPLE_C} "#include <stdio.h>\nint main() { printf(__FILE__); return 0; }\n")
set(os_linker_flags)
foreach(flag ${DARWIN_${os}_LINK_FLAGS})
set(os_linker_flags "${os_linker_flags} ${flag}")
endforeach()
# Disable building for i386 for macOS SDK >= 10.15. The SDK doesn't support
# linking for i386 and the corresponding OS doesn't allow running macOS i386
# binaries.
if ("${os}" STREQUAL "osx")
find_darwin_sdk_version(macosx_sdk_version "macosx")
if ("${macosx_sdk_version}" VERSION_GREATER 10.15 OR "${macosx_sdk_version}" VERSION_EQUAL 10.15)
message(STATUS "Disabling i386 slice for ${valid_archs}")
list(REMOVE_ITEM archs "i386")
endif()
endif()
endif()
# The simple program will build for x86_64h on the simulator because it is
# compatible with x86_64 libraries (mostly), but since x86_64h isn't actually
# a valid or useful architecture for the iOS simulator we should drop it.
if(${os} MATCHES "^(iossim|tvossim|watchossim)$")
list(REMOVE_ITEM archs "x86_64h")
endif()
set(working_archs)
foreach(arch ${archs})
set(arch_linker_flags "-arch ${arch} ${os_linker_flags}")
if(TEST_COMPILE_ONLY)
# `-w` is used to surpress compiler warnings which `try_compile_only()` treats as an error.
try_compile_only(CAN_TARGET_${os}_${arch} FLAGS -v -arch ${arch} ${DARWIN_${os}_CFLAGS} -w)
else()
set(SAVED_CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS})
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${arch_linker_flags}")
try_compile(CAN_TARGET_${os}_${arch} ${CMAKE_BINARY_DIR} ${SIMPLE_C}
COMPILE_DEFINITIONS "-v -arch ${arch}" ${DARWIN_${os}_CFLAGS}
OUTPUT_VARIABLE TEST_OUTPUT)
set(CMAKE_EXE_LINKER_FLAGS ${SAVED_CMAKE_EXE_LINKER_FLAGS})
endif()
if(${CAN_TARGET_${os}_${arch}})
list(APPEND working_archs ${arch})
else()
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Testing compiler for supporting ${os}-${arch}:\n"
"${TEST_OUTPUT}\n")
endif()
endforeach()
set(${valid_archs} ${working_archs}
CACHE STRING "List of valid architectures for platform ${os}." FORCE)
endfunction()
# This function checks the host cputype/cpusubtype to filter supported
# architecture for the host OS. This is used to determine which tests are
# available for the host.
function(darwin_filter_host_archs input output)
list_intersect(tmp_var DARWIN_osx_ARCHS ${input})
execute_process(
COMMAND sysctl hw.cputype
OUTPUT_VARIABLE CPUTYPE)
string(REGEX MATCH "hw.cputype: ([0-9]*)"
CPUTYPE_MATCHED "${CPUTYPE}")
set(ARM_HOST Off)
if(CPUTYPE_MATCHED)
# ARM cputype is (0x01000000 | 12) and X86(_64) is always 7.
if(${CMAKE_MATCH_1} GREATER 11)
set(ARM_HOST On)
endif()
endif()
if(ARM_HOST)
list(REMOVE_ITEM tmp_var i386)
else()
list(REMOVE_ITEM tmp_var arm64)
list(REMOVE_ITEM tmp_var arm64e)
execute_process(
COMMAND sysctl hw.cpusubtype
OUTPUT_VARIABLE SUBTYPE)
string(REGEX MATCH "hw.cpusubtype: ([0-9]*)"
SUBTYPE_MATCHED "${SUBTYPE}")
set(HASWELL_SUPPORTED Off)
if(SUBTYPE_MATCHED)
if(${CMAKE_MATCH_1} GREATER 7)
set(HASWELL_SUPPORTED On)
endif()
endif()
if(NOT HASWELL_SUPPORTED)
list(REMOVE_ITEM tmp_var x86_64h)
endif()
endif()
set(${output} ${tmp_var} PARENT_SCOPE)
endfunction()
# Read and process the exclude file into a list of symbols
function(darwin_read_list_from_file output_var file)
if(EXISTS ${file})
file(READ ${file} EXCLUDES)
string(REPLACE "\n" ";" EXCLUDES ${EXCLUDES})
set(${output_var} ${EXCLUDES} PARENT_SCOPE)
endif()
endfunction()
# this function takes an OS, architecture and minimum version and provides a
# list of builtin functions to exclude
function(darwin_find_excluded_builtins_list output_var)
cmake_parse_arguments(LIB
""
"OS;ARCH;MIN_VERSION"
""
${ARGN})
if(NOT LIB_OS OR NOT LIB_ARCH)
message(FATAL_ERROR "Must specify OS and ARCH to darwin_find_excluded_builtins_list!")
endif()
darwin_read_list_from_file(${LIB_OS}_BUILTINS
${DARWIN_EXCLUDE_DIR}/${LIB_OS}.txt)
darwin_read_list_from_file(${LIB_OS}_${LIB_ARCH}_BASE_BUILTINS
${DARWIN_EXCLUDE_DIR}/${LIB_OS}-${LIB_ARCH}.txt)
if(LIB_MIN_VERSION)
file(GLOB builtin_lists ${DARWIN_EXCLUDE_DIR}/${LIB_OS}*-${LIB_ARCH}.txt)
foreach(builtin_list ${builtin_lists})
string(REGEX MATCH "${LIB_OS}([0-9\\.]*)-${LIB_ARCH}.txt" VERSION_MATCHED "${builtin_list}")
if (VERSION_MATCHED AND NOT CMAKE_MATCH_1 VERSION_LESS LIB_MIN_VERSION)
if(NOT smallest_version)
set(smallest_version ${CMAKE_MATCH_1})
elseif(CMAKE_MATCH_1 VERSION_LESS smallest_version)
set(smallest_version ${CMAKE_MATCH_1})
endif()
endif()
endforeach()
if(smallest_version)
darwin_read_list_from_file(${LIB_ARCH}_${LIB_OS}_BUILTINS
${DARWIN_EXCLUDE_DIR}/${LIB_OS}${smallest_version}-${LIB_ARCH}.txt)
endif()
endif()
set(${output_var}
${${LIB_ARCH}_${LIB_OS}_BUILTINS}
${${LIB_OS}_${LIB_ARCH}_BASE_BUILTINS}
${${LIB_OS}_BUILTINS} PARENT_SCOPE)
endfunction()
# adds a single builtin library for a single OS & ARCH
macro(darwin_add_builtin_library name suffix)
cmake_parse_arguments(LIB
""
"PARENT_TARGET;OS;ARCH"
"SOURCES;CFLAGS;DEFS;INCLUDE_DIRS"
${ARGN})
set(libname "${name}.${suffix}_${LIB_ARCH}_${LIB_OS}")
add_library(${libname} STATIC ${LIB_SOURCES})
if(DARWIN_${LIB_OS}_SYSROOT)
set(sysroot_flag -isysroot ${DARWIN_${LIB_OS}_SYSROOT})
endif()
# Make a copy of the compilation flags.
set(builtin_cflags ${LIB_CFLAGS})
# Strip out any inappropriate flags for the target.
if("${LIB_ARCH}" MATCHES "^(armv7|armv7k|armv7s)$")
set(builtin_cflags "")
foreach(cflag "${LIB_CFLAGS}")
string(REPLACE "-fomit-frame-pointer" "" cflag "${cflag}")
list(APPEND builtin_cflags ${cflag})
endforeach(cflag)
endif()
if ("${LIB_OS}" MATCHES ".*sim$")
# Pass an explicit -simulator environment to the -target option to ensure
# that we don't rely on the architecture to infer whether we're building
# for the simulator.
string(REGEX REPLACE "sim" "" base_os "${LIB_OS}")
list(APPEND builtin_cflags
-target "${LIB_ARCH}-apple-${base_os}${DARWIN_${LIBOS}_BUILTIN_MIN_VER}-simulator")
endif()
set_target_compile_flags(${libname}
${sysroot_flag}
${DARWIN_${LIB_OS}_BUILTIN_MIN_VER_FLAG}
${builtin_cflags})
target_include_directories(${libname}
PRIVATE ${LIB_INCLUDE_DIRS})
set_property(TARGET ${libname} APPEND PROPERTY
COMPILE_DEFINITIONS ${LIB_DEFS})
set_target_properties(${libname} PROPERTIES
OUTPUT_NAME ${libname}${COMPILER_RT_OS_SUFFIX})
set_target_properties(${libname} PROPERTIES
OSX_ARCHITECTURES ${LIB_ARCH})
if(LIB_PARENT_TARGET)
add_dependencies(${LIB_PARENT_TARGET} ${libname})
endif()
list(APPEND ${LIB_OS}_${suffix}_libs ${libname})
list(APPEND ${LIB_OS}_${suffix}_lipo_flags -arch ${arch} $<TARGET_FILE:${libname}>)
set_target_properties(${libname} PROPERTIES FOLDER "Compiler-RT Libraries")
endmacro()
function(darwin_lipo_libs name)
cmake_parse_arguments(LIB
""
"PARENT_TARGET;OUTPUT_DIR;INSTALL_DIR"
"LIPO_FLAGS;DEPENDS"
${ARGN})
if(LIB_DEPENDS AND LIB_LIPO_FLAGS)
add_custom_command(OUTPUT ${LIB_OUTPUT_DIR}/lib${name}.a
COMMAND ${CMAKE_COMMAND} -E make_directory ${LIB_OUTPUT_DIR}
COMMAND ${CMAKE_LIPO} -output
${LIB_OUTPUT_DIR}/lib${name}.a
-create ${LIB_LIPO_FLAGS}
DEPENDS ${LIB_DEPENDS}
)
add_custom_target(${name}
DEPENDS ${LIB_OUTPUT_DIR}/lib${name}.a)
set_target_properties(${name} PROPERTIES FOLDER "Compiler-RT Misc")
add_dependencies(${LIB_PARENT_TARGET} ${name})
if(CMAKE_CONFIGURATION_TYPES)
set(install_component ${LIB_PARENT_TARGET})
else()
set(install_component ${name})
endif()
install(FILES ${LIB_OUTPUT_DIR}/lib${name}.a
DESTINATION ${LIB_INSTALL_DIR}
COMPONENT ${install_component})
add_compiler_rt_install_targets(${name} PARENT_TARGET ${LIB_PARENT_TARGET})
else()
message(WARNING "Not generating lipo target for ${name} because no input libraries exist.")
endif()
endfunction()
# Filter the list of builtin sources for Darwin, then delegate to the generic
# filtering.
#
# `exclude_or_include` must be one of:
# - EXCLUDE: remove every item whose name (w/o extension) matches a name in
# `excluded_list`.
# - INCLUDE: keep only items whose name (w/o extension) matches something
# in `excluded_list`.
function(darwin_filter_builtin_sources output_var name exclude_or_include excluded_list)
if(exclude_or_include STREQUAL "EXCLUDE")
set(filter_action GREATER)
set(filter_value -1)
elseif(exclude_or_include STREQUAL "INCLUDE")
set(filter_action LESS)
set(filter_value 0)
else()
message(FATAL_ERROR "darwin_filter_builtin_sources called without EXCLUDE|INCLUDE")
endif()
set(intermediate ${ARGN})
foreach(_file ${intermediate})
get_filename_component(_name_we ${_file} NAME_WE)
list(FIND ${excluded_list} ${_name_we} _found)
if(_found ${filter_action} ${filter_value})
list(REMOVE_ITEM intermediate ${_file})
endif()
endforeach()
filter_builtin_sources(intermediate ${name})
set(${output_var} ${intermediate} PARENT_SCOPE)
endfunction()
# Generates builtin libraries for all operating systems specified in ARGN. Each
# OS library is constructed by lipo-ing together single-architecture libraries.
macro(darwin_add_builtin_libraries)
set(DARWIN_EXCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/Darwin-excludes)
set(CFLAGS "-fPIC -O3 -fvisibility=hidden -DVISIBILITY_HIDDEN -Wall -fomit-frame-pointer")
set(CMAKE_C_FLAGS "")
set(CMAKE_CXX_FLAGS "")
set(CMAKE_ASM_FLAGS "")
append_string_if(COMPILER_RT_HAS_ASM_LSE " -DHAS_ASM_LSE" CFLAGS)
set(PROFILE_SOURCES ../profile/InstrProfiling
../profile/InstrProfilingBuffer
../profile/InstrProfilingPlatformDarwin
../profile/InstrProfilingWriter
../profile/InstrProfilingInternal
../profile/InstrProfilingVersionVar)
foreach (os ${ARGN})
list_intersect(DARWIN_BUILTIN_ARCHS DARWIN_${os}_BUILTIN_ARCHS BUILTIN_SUPPORTED_ARCH)
foreach (arch ${DARWIN_BUILTIN_ARCHS})
darwin_find_excluded_builtins_list(${arch}_${os}_EXCLUDED_BUILTINS
OS ${os}
ARCH ${arch}
MIN_VERSION ${DARWIN_${os}_BUILTIN_MIN_VER})
darwin_filter_builtin_sources(filtered_sources
${os}_${arch}
EXCLUDE ${arch}_${os}_EXCLUDED_BUILTINS
${${arch}_SOURCES})
darwin_add_builtin_library(clang_rt builtins
OS ${os}
ARCH ${arch}
SOURCES ${filtered_sources}
CFLAGS ${CFLAGS} -arch ${arch}
PARENT_TARGET builtins)
endforeach()
# Don't build cc_kext libraries for simulator platforms
if(NOT DARWIN_${os}_SKIP_CC_KEXT)
foreach (arch ${DARWIN_BUILTIN_ARCHS})
# By not specifying MIN_VERSION this only reads the OS and OS-arch lists.
# We don't want to filter out the builtins that are present in libSystem
# because kexts can't link libSystem.
darwin_find_excluded_builtins_list(${arch}_${os}_EXCLUDED_BUILTINS
OS ${os}
ARCH ${arch})
darwin_filter_builtin_sources(filtered_sources
cc_kext_${os}_${arch}
EXCLUDE ${arch}_${os}_EXCLUDED_BUILTINS
${${arch}_SOURCES})
# In addition to the builtins cc_kext includes some profile sources
darwin_add_builtin_library(clang_rt cc_kext
OS ${os}
ARCH ${arch}
SOURCES ${filtered_sources} ${PROFILE_SOURCES}
CFLAGS ${CFLAGS} -arch ${arch} -mkernel
DEFS KERNEL_USE
INCLUDE_DIRS ../../include
PARENT_TARGET builtins)
endforeach()
set(archive_name clang_rt.cc_kext_${os})
if(${os} STREQUAL "osx")
set(archive_name clang_rt.cc_kext)
endif()
darwin_lipo_libs(${archive_name}
PARENT_TARGET builtins
LIPO_FLAGS ${${os}_cc_kext_lipo_flags}
DEPENDS ${${os}_cc_kext_libs}
OUTPUT_DIR ${COMPILER_RT_LIBRARY_OUTPUT_DIR}
INSTALL_DIR ${COMPILER_RT_LIBRARY_INSTALL_DIR})
endif()
endforeach()
foreach (os ${ARGN})
darwin_lipo_libs(clang_rt.${os}
PARENT_TARGET builtins
LIPO_FLAGS ${${os}_builtins_lipo_flags}
DEPENDS ${${os}_builtins_libs}
OUTPUT_DIR ${COMPILER_RT_LIBRARY_OUTPUT_DIR}
INSTALL_DIR ${COMPILER_RT_LIBRARY_INSTALL_DIR})
endforeach()
darwin_add_embedded_builtin_libraries()
endmacro()
macro(darwin_add_embedded_builtin_libraries)
# this is a hacky opt-out. If you can't target both intel and arm
# architectures we bail here.
set(DARWIN_SOFT_FLOAT_ARCHS armv6m armv7m armv7em armv7)
set(DARWIN_HARD_FLOAT_ARCHS armv7em armv7)
if(COMPILER_RT_SUPPORTED_ARCH MATCHES ".*armv.*")
list(FIND COMPILER_RT_SUPPORTED_ARCH i386 i386_idx)
if(i386_idx GREATER -1)
list(APPEND DARWIN_HARD_FLOAT_ARCHS i386)
endif()
list(FIND COMPILER_RT_SUPPORTED_ARCH x86_64 x86_64_idx)
if(x86_64_idx GREATER -1)
list(APPEND DARWIN_HARD_FLOAT_ARCHS x86_64)
endif()
set(MACHO_SYM_DIR ${CMAKE_CURRENT_SOURCE_DIR}/macho_embedded)
set(CFLAGS "-Oz -Wall -fomit-frame-pointer -ffreestanding")
set(CMAKE_C_FLAGS "")
set(CMAKE_CXX_FLAGS "")
set(CMAKE_ASM_FLAGS "")
set(SOFT_FLOAT_FLAG -mfloat-abi=soft)
set(HARD_FLOAT_FLAG -mfloat-abi=hard)
set(ENABLE_PIC Off)
set(PIC_FLAG -fPIC)
set(STATIC_FLAG -static)
set(DARWIN_macho_embedded_ARCHS armv6m armv7m armv7em armv7 i386 x86_64)
set(DARWIN_macho_embedded_LIBRARY_OUTPUT_DIR
${COMPILER_RT_OUTPUT_DIR}/lib/macho_embedded)
set(DARWIN_macho_embedded_LIBRARY_INSTALL_DIR
${COMPILER_RT_INSTALL_PATH}/lib/macho_embedded)
set(CFLAGS_armv7 "-target thumbv7-apple-darwin-eabi")
set(CFLAGS_i386 "-march=pentium")
darwin_read_list_from_file(common_FUNCTIONS ${MACHO_SYM_DIR}/common.txt)
darwin_read_list_from_file(thumb2_FUNCTIONS ${MACHO_SYM_DIR}/thumb2.txt)
darwin_read_list_from_file(thumb2_64_FUNCTIONS ${MACHO_SYM_DIR}/thumb2-64.txt)
darwin_read_list_from_file(arm_FUNCTIONS ${MACHO_SYM_DIR}/arm.txt)
darwin_read_list_from_file(i386_FUNCTIONS ${MACHO_SYM_DIR}/i386.txt)
set(armv6m_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS})
set(armv7m_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS} ${thumb2_FUNCTIONS})
set(armv7em_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS} ${thumb2_FUNCTIONS})
set(armv7_FUNCTIONS ${common_FUNCTIONS} ${arm_FUNCTIONS} ${thumb2_FUNCTIONS} ${thumb2_64_FUNCTIONS})
set(i386_FUNCTIONS ${common_FUNCTIONS} ${i386_FUNCTIONS})
set(x86_64_FUNCTIONS ${common_FUNCTIONS})
foreach(arch ${DARWIN_macho_embedded_ARCHS})
darwin_filter_builtin_sources(${arch}_filtered_sources
macho_embedded_${arch}
INCLUDE ${arch}_FUNCTIONS
${${arch}_SOURCES})
if(NOT ${arch}_filtered_sources)
message(WARNING "${arch}_SOURCES: ${${arch}_SOURCES}")
message(WARNING "${arch}_FUNCTIONS: ${${arch}_FUNCTIONS}")
message(FATAL_ERROR "Empty filtered sources!")
endif()
endforeach()
foreach(float_type SOFT HARD)
foreach(type PIC STATIC)
string(TOLOWER "${float_type}_${type}" lib_suffix)
foreach(arch ${DARWIN_${float_type}_FLOAT_ARCHS})
set(DARWIN_macho_embedded_SYSROOT ${DARWIN_osx_SYSROOT})
set(float_flag)
if(${arch} MATCHES "^arm")
# x86 targets are hard float by default, but the complain about the
# float ABI flag, so don't pass it unless we're targeting arm.
set(float_flag ${${float_type}_FLOAT_FLAG})
endif()
darwin_add_builtin_library(clang_rt ${lib_suffix}
OS macho_embedded
ARCH ${arch}
SOURCES ${${arch}_filtered_sources}
CFLAGS ${CFLAGS} -arch ${arch} ${${type}_FLAG} ${float_flag} ${CFLAGS_${arch}}
PARENT_TARGET builtins)
endforeach()
foreach(lib ${macho_embedded_${lib_suffix}_libs})
set_target_properties(${lib} PROPERTIES LINKER_LANGUAGE C)
endforeach()
darwin_lipo_libs(clang_rt.${lib_suffix}
PARENT_TARGET builtins
LIPO_FLAGS ${macho_embedded_${lib_suffix}_lipo_flags}
DEPENDS ${macho_embedded_${lib_suffix}_libs}
OUTPUT_DIR ${DARWIN_macho_embedded_LIBRARY_OUTPUT_DIR}
INSTALL_DIR ${DARWIN_macho_embedded_LIBRARY_INSTALL_DIR})
endforeach()
endforeach()
endif()
endmacro()
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