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SwiftSource.cmake
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include(macCatalystUtils)
include(SwiftUtils)
function(_compute_lto_swift_flag option out_var)
string(TOLOWER "${option}" lowercase_option)
if (lowercase_option STREQUAL "full")
set(${out_var} "-lto=llvm-full" PARENT_SCOPE)
elseif (lowercase_option STREQUAL "thin")
set(${out_var} "-lto=llvm-thin" PARENT_SCOPE)
endif()
endfunction()
# Compute the library subdirectory to use for the given sdk and
# architecture, placing the result in 'result_var_name'.
function(compute_library_subdir result_var_name sdk arch)
set("${result_var_name}" "${SWIFT_SDK_${sdk}_LIB_SUBDIR}" PARENT_SCOPE)
endfunction()
# Return a swiftc flag (e.g. -O or -Onone) to control optimization level based
# on the build type.
function(swift_optimize_flag_for_build_type build_type result_var_name)
if("${build_type}" STREQUAL "Debug")
set("${result_var_name}" "-Onone" PARENT_SCOPE)
elseif("${build_type}" STREQUAL "RelWithDebInfo" OR
"${build_type}" STREQUAL "Release")
set("${result_var_name}" "-O" PARENT_SCOPE)
elseif("${build_type}" STREQUAL "MinSizeRel")
set("${result_var_name}" "-Osize" PARENT_SCOPE)
else()
message(FATAL_ERROR "Unknown build type: ${build_type}")
endif()
endfunction()
# Process the sources within the given variable, pulling out any Swift
# sources to be compiled with 'swift' directly. This updates
# ${sourcesvar} in place with the resulting list and ${externalvar} with the
# list of externally-build sources.
#
# Usage:
# handle_swift_sources(sourcesvar externalvar)
#
# MACCATALYST_BUILD_FLAVOR
# Possible values are 'ios-like', 'macos-like', 'zippered', 'unzippered-twin'
function(handle_swift_sources
dependency_target_out_var_name
dependency_module_target_out_var_name
dependency_sib_target_out_var_name
dependency_sibopt_target_out_var_name
dependency_sibgen_target_out_var_name
sourcesvar externalvar name)
cmake_parse_arguments(SWIFTSOURCES
"IS_MAIN;IS_STDLIB;IS_STDLIB_CORE;IS_SDK_OVERLAY;EMBED_BITCODE;STATIC"
"SDK;ARCHITECTURE;INSTALL_IN_COMPONENT;MACCATALYST_BUILD_FLAVOR;BOOTSTRAPPING"
"DEPENDS;COMPILE_FLAGS;MODULE_NAME;ENABLE_LTO"
${ARGN})
translate_flag(${SWIFTSOURCES_IS_MAIN} "IS_MAIN" IS_MAIN_arg)
translate_flag(${SWIFTSOURCES_IS_STDLIB} "IS_STDLIB" IS_STDLIB_arg)
translate_flag(${SWIFTSOURCES_IS_STDLIB_CORE} "IS_STDLIB_CORE"
IS_STDLIB_CORE_arg)
translate_flag(${SWIFTSOURCES_IS_SDK_OVERLAY} "IS_SDK_OVERLAY"
IS_SDK_OVERLAY_arg)
translate_flag(${SWIFTSOURCES_EMBED_BITCODE} "EMBED_BITCODE"
EMBED_BITCODE_arg)
translate_flag(${SWIFTSOURCES_STATIC} "STATIC"
STATIC_arg)
if(DEFINED SWIFTSOURCES_BOOTSTRAPPING)
set(BOOTSTRAPPING_arg "BOOTSTRAPPING" ${SWIFTSOURCES_BOOTSTRAPPING})
endif()
if(SWIFTSOURCES_IS_MAIN)
set(SWIFTSOURCES_INSTALL_IN_COMPONENT never_install)
endif()
# Check arguments.
precondition(SWIFTSOURCES_SDK "Should specify an SDK")
precondition(SWIFTSOURCES_ARCHITECTURE "Should specify an architecture")
precondition(SWIFTSOURCES_INSTALL_IN_COMPONENT "INSTALL_IN_COMPONENT is required")
# Clear the result variable.
set("${dependency_target_out_var_name}" "" PARENT_SCOPE)
set("${dependency_module_target_out_var_name}" "" PARENT_SCOPE)
set("${dependency_sib_target_out_var_name}" "" PARENT_SCOPE)
set("${dependency_sibopt_target_out_var_name}" "" PARENT_SCOPE)
set("${dependency_sibgen_target_out_var_name}" "" PARENT_SCOPE)
set(result)
set(swift_sources)
foreach(src ${${sourcesvar}})
get_filename_component(extension ${src} EXT)
if(extension STREQUAL ".swift")
list(APPEND swift_sources ${src})
else()
list(APPEND result ${src})
endif()
endforeach()
set(swift_compile_flags ${SWIFTSOURCES_COMPILE_FLAGS})
if (NOT SWIFTSOURCES_IS_MAIN)
list(APPEND swift_compile_flags "-module-link-name" "${name}")
endif()
if(swift_sources)
set(objsubdir "/${SWIFTSOURCES_SDK}/${SWIFTSOURCES_ARCHITECTURE}")
get_maccatalyst_build_flavor(maccatalyst_build_flavor
"${SWIFTSOURCES_SDK}" "${SWIFTSOURCES_MACCATALYST_BUILD_FLAVOR}")
if(maccatalyst_build_flavor STREQUAL "ios-like")
set(objsubdir "/MACCATALYST/${SWIFTSOURCES_ARCHITECTURE}")
endif()
get_bootstrapping_path(lib_dir
${SWIFTLIB_DIR} "${SWIFTSOURCES_BOOTSTRAPPING}")
get_bootstrapping_path(obj_dir
"${CMAKE_CURRENT_BINARY_DIR}/${objsubdir}" "${SWIFTSOURCES_BOOTSTRAPPING}")
file(MAKE_DIRECTORY ${obj_dir})
set(swift_obj
"${obj_dir}/${SWIFTSOURCES_MODULE_NAME}${CMAKE_C_OUTPUT_EXTENSION}")
# FIXME: We shouldn't /have/ to build things in a single process.
# <rdar://problem/15972329>
list(APPEND swift_compile_flags "-whole-module-optimization")
if(sdk IN_LIST SWIFT_DARWIN_PLATFORMS OR sdk STREQUAL "MACCATALYST")
list(APPEND swift_compile_flags "-save-optimization-record=bitstream")
endif()
if (SWIFTSOURCES_ENABLE_LTO)
_compute_lto_swift_flag("${SWIFTSOURCES_ENABLE_LTO}" _lto_flag_out)
if (_lto_flag_out)
list(APPEND swift_compile_flags "${_lto_flag_out}")
endif()
endif()
_compile_swift_files(
dependency_target
module_dependency_target
sib_dependency_target
sibopt_dependency_target
sibgen_dependency_target
OUTPUT ${swift_obj}
SOURCES ${swift_sources}
DEPENDS ${SWIFTSOURCES_DEPENDS}
FLAGS ${swift_compile_flags}
SDK ${SWIFTSOURCES_SDK}
ARCHITECTURE ${SWIFTSOURCES_ARCHITECTURE}
MODULE_NAME ${SWIFTSOURCES_MODULE_NAME}
${IS_MAIN_arg}
${IS_STDLIB_arg}
${IS_STDLIB_CORE_arg}
${IS_SDK_OVERLAY_arg}
${EMBED_BITCODE_arg}
${STATIC_arg}
${BOOTSTRAPPING_arg}
INSTALL_IN_COMPONENT "${SWIFTSOURCES_INSTALL_IN_COMPONENT}"
MACCATALYST_BUILD_FLAVOR "${SWIFTSOURCES_MACCATALYST_BUILD_FLAVOR}")
set("${dependency_target_out_var_name}" "${dependency_target}" PARENT_SCOPE)
set("${dependency_module_target_out_var_name}" "${module_dependency_target}" PARENT_SCOPE)
set("${dependency_sib_target_out_var_name}" "${sib_dependency_target}" PARENT_SCOPE)
set("${dependency_sibopt_target_out_var_name}" "${sibopt_dependency_target}" PARENT_SCOPE)
set("${dependency_sibgen_target_out_var_name}" "${sibgen_dependency_target}" PARENT_SCOPE)
list(APPEND result ${swift_obj})
endif()
llvm_process_sources(result ${result})
set(${sourcesvar} "${result}" PARENT_SCOPE)
set(${externalvar} ${swift_sources} PARENT_SCOPE)
endfunction()
# Add Swift source files to the (Xcode) project.
#
# Usage:
# add_swift_source_group(sources)
function(add_swift_source_group sources)
source_group("Swift Sources" FILES ${sources})
# Mark the source files as HEADER_FILE_ONLY, so that Xcode doesn't try
# to build them itself.
set_source_files_properties(${sources}
PROPERTIES
HEADER_FILE_ONLY true)
endfunction()
# Look up extra flags for a module that matches a regexp.
function(_add_extra_swift_flags_for_module module_name result_var_name)
set(result_list)
list(LENGTH SWIFT_EXPERIMENTAL_EXTRA_REGEXP_FLAGS listlen)
if (${listlen} GREATER 0)
math(EXPR listlen "${listlen}-1")
foreach(i RANGE 0 ${listlen} 2)
list(GET SWIFT_EXPERIMENTAL_EXTRA_REGEXP_FLAGS ${i} regex)
if (module_name MATCHES "${regex}")
math(EXPR ip1 "${i}+1")
list(GET SWIFT_EXPERIMENTAL_EXTRA_REGEXP_FLAGS ${ip1} flags)
list(APPEND result_list ${flags})
message(STATUS "Matched '${regex}' to module '${module_name}'. Compiling ${module_name} with special flags: ${flags}")
endif()
endforeach()
endif()
list(LENGTH SWIFT_EXPERIMENTAL_EXTRA_NEGATIVE_REGEXP_FLAGS listlen)
if (${listlen} GREATER 0)
math(EXPR listlen "${listlen}-1")
foreach(i RANGE 0 ${listlen} 2)
list(GET SWIFT_EXPERIMENTAL_EXTRA_NEGATIVE_REGEXP_FLAGS ${i} regex)
if (NOT module_name MATCHES "${regex}")
math(EXPR ip1 "${i}+1")
list(GET SWIFT_EXPERIMENTAL_EXTRA_NEGATIVE_REGEXP_FLAGS ${ip1} flags)
list(APPEND result_list ${flags})
message(STATUS "Matched NEGATIVE '${regex}' to module '${module_name}'. Compiling ${module_name} with special flags: ${flags}")
endif()
endforeach()
endif()
set("${result_var_name}" ${result_list} PARENT_SCOPE)
endfunction()
function(_add_target_variant_swift_compile_flags
sdk arch build_type enable_assertions result_var_name)
set(result ${${result_var_name}})
cmake_parse_arguments(
VARIANT # prefix
"" # options
"MACCATALYST_BUILD_FLAVOR" # single-value args
"" # multi-value args
${ARGN})
# On Windows, we don't set SWIFT_SDK_WINDOWS_PATH_ARCH_{ARCH}_PATH, so don't include it.
if (NOT "${sdk}" STREQUAL "WINDOWS")
list(APPEND result "-sdk" "${SWIFT_SDK_${sdk}_ARCH_${arch}_PATH}")
endif()
if("${sdk}" IN_LIST SWIFT_DARWIN_PLATFORMS)
set(sdk_deployment_version "${SWIFT_SDK_${sdk}_DEPLOYMENT_VERSION}")
get_target_triple(target target_variant "${sdk}" "${arch}"
MACCATALYST_BUILD_FLAVOR "${VARIANT_MACCATALYST_BUILD_FLAVOR}"
DEPLOYMENT_VERSION "${sdk_deployment_version}")
list(APPEND result "-target" "${target}")
if(target_variant)
list(APPEND result "-target-variant" "${target_variant}")
endif()
else()
list(APPEND result
"-target" "${SWIFT_SDK_${sdk}_ARCH_${arch}_TRIPLE}")
endif()
if(NOT BUILD_STANDALONE)
list(APPEND result "-resource-dir" "${SWIFTLIB_DIR}")
endif()
if("${sdk}" IN_LIST SWIFT_DARWIN_PLATFORMS)
# We collate -F with the framework path to avoid unwanted deduplication
# of options by target_compile_options -- this way no undesired
# side effects are introduced should a new search path be added.
list(APPEND result
"-F${SWIFT_SDK_${sdk}_ARCH_${arch}_PATH}/../../../Developer/Library/Frameworks")
endif()
swift_optimize_flag_for_build_type("${build_type}" optimize_flag)
list(APPEND result "${optimize_flag}")
is_build_type_with_debuginfo("${build_type}" debuginfo)
if(debuginfo)
list(APPEND result "-g")
elseif("${build_type}" STREQUAL "MinSizeRel")
# MinSizeRel builds of stdlib (but not the compiler) should get debug info
list(APPEND result "-g")
endif()
if(enable_assertions)
list(APPEND result "-D" "INTERNAL_CHECKS_ENABLED")
endif()
if(SWIFT_ENABLE_EXPERIMENTAL_CONCURRENCY)
list(APPEND result "-D" "SWIFT_ENABLE_EXPERIMENTAL_CONCURRENCY")
endif()
if(SWIFT_ENABLE_EXPERIMENTAL_DISTRIBUTED)
list(APPEND result "-D" "SWIFT_ENABLE_EXPERIMENTAL_DISTRIBUTED")
endif()
if(SWIFT_ENABLE_RUNTIME_FUNCTION_COUNTERS)
list(APPEND result "-D" "SWIFT_ENABLE_RUNTIME_FUNCTION_COUNTERS")
endif()
if(SWIFT_ENABLE_EXPERIMENTAL_DIFFERENTIABLE_PROGRAMMING)
list(APPEND result "-D" "SWIFT_ENABLE_EXPERIMENTAL_DIFFERENTIABLE_PROGRAMMING")
endif()
if(SWIFT_ENABLE_EXPERIMENTAL_STRING_PROCESSING)
list(APPEND result "-D" "SWIFT_ENABLE_EXPERIMENTAL_STRING_PROCESSING")
endif()
if(SWIFT_STDLIB_OS_VERSIONING)
list(APPEND result "-D" "SWIFT_RUNTIME_OS_VERSIONING")
endif()
if(SWIFT_STDLIB_HAS_COMMANDLINE)
list(APPEND result "-D" "SWIFT_STDLIB_HAS_COMMANDLINE")
endif()
if(SWIFT_STDLIB_HAS_STDIN)
list(APPEND result "-D" "SWIFT_STDLIB_HAS_STDIN")
endif()
if(SWIFT_STDLIB_HAS_ENVIRON)
list(APPEND result "-D" "SWIFT_STDLIB_HAS_ENVIRON")
list(APPEND result "-Xcc" "-DSWIFT_STDLIB_HAS_ENVIRON")
endif()
set("${result_var_name}" "${result}" PARENT_SCOPE)
endfunction()
# Compile a swift file into an object file (as a library).
#
# Usage:
# _compile_swift_files(
# dependency_target_out_var_name
# dependency_module_target_out_var_name
# dependency_sib_target_out_var_name # -Onone sib target
# dependency_sibopt_target_out_var_name # -O sib target
# dependency_sibgen_target_out_var_name # -sibgen target
# OUTPUT objfile # Name of the resulting object file
# SOURCES swift_src [swift_src...] # Swift source files to compile
# FLAGS -module-name foo # Flags to add to the compilation
# MACCATALYST_BUILD_FLAVOR flavor # macCatalyst flavor
# [SDK sdk] # SDK to build for
# [ARCHITECTURE architecture] # Architecture to build for
# [DEPENDS cmake_target...] # CMake targets on which the object
# # file depends.
# [IS_MAIN] # This is an executable, not a library
# [IS_STDLIB]
# [IS_STDLIB_CORE] # This is the core standard library
# [OPT_FLAGS] # Optimization flags (overrides SWIFT_OPTIMIZE)
# [MODULE_DIR] # Put .swiftmodule, .swiftdoc., and .o
# # into this directory.
# [MODULE_NAME] # The module name.
# [INSTALL_IN_COMPONENT] # Install produced files.
# [EMBED_BITCODE] # Embed LLVM bitcode into the .o files
# [STATIC] # Also write .swiftmodule etc. to static
# # resource folder
# )
function(_compile_swift_files
dependency_target_out_var_name dependency_module_target_out_var_name
dependency_sib_target_out_var_name dependency_sibopt_target_out_var_name
dependency_sibgen_target_out_var_name)
cmake_parse_arguments(SWIFTFILE
"IS_MAIN;IS_STDLIB;IS_STDLIB_CORE;IS_SDK_OVERLAY;EMBED_BITCODE;STATIC"
"OUTPUT;MODULE_NAME;INSTALL_IN_COMPONENT;MACCATALYST_BUILD_FLAVOR;BOOTSTRAPPING"
"SOURCES;FLAGS;DEPENDS;SDK;ARCHITECTURE;OPT_FLAGS;MODULE_DIR"
${ARGN})
# Check arguments.
list(LENGTH SWIFTFILE_OUTPUT num_outputs)
list(GET SWIFTFILE_OUTPUT 0 first_output)
precondition(num_outputs MESSAGE "OUTPUT must not be empty")
foreach(output ${SWIFTFILE_OUTPUT})
if (NOT IS_ABSOLUTE "${output}")
message(FATAL_ERROR "OUTPUT should be an absolute path")
endif()
endforeach()
if(SWIFTFILE_IS_MAIN AND SWIFTFILE_IS_STDLIB)
message(FATAL_ERROR "Cannot set both IS_MAIN and IS_STDLIB")
endif()
precondition(SWIFTFILE_SDK MESSAGE "Should specify an SDK")
precondition(SWIFTFILE_ARCHITECTURE MESSAGE "Should specify an architecture")
precondition(SWIFTFILE_INSTALL_IN_COMPONENT MESSAGE "INSTALL_IN_COMPONENT is required")
# Determine if/what macCatalyst build variant we are
get_maccatalyst_build_flavor(maccatalyst_build_flavor
"${SWIFTFILE_SDK}" "${SWIFTFILE_MACCATALYST_BUILD_FLAVOR}")
# Determine target triples
get_target_triple(target_triple ignored_target_variant_triple
"${SWIFTFILE_SDK}"
"${SWIFTFILE_ARCHITECTURE}"
DEPLOYMENT_VERSION "${SWIFT_SDK_${SWIFTFILE_SDK}_DEPLOYMENT_VERSION}")
get_target_triple(maccatalyst_target_triple ignored_target_variant_triple
"${SWIFTFILE_SDK}"
"${SWIFTFILE_ARCHITECTURE}"
DEPLOYMENT_VERSION "${SWIFT_SDK_${SWIFTFILE_SDK}_DEPLOYMENT_VERSION}"
MACCATALYST_BUILD_FLAVOR "${maccatalyst_build_flavor}")
# macCatalyst ios-like target triple
if(maccatalyst_build_flavor STREQUAL "ios-like")
set(target_triple "${maccatalyst_target_triple}")
endif()
if ("${SWIFTFILE_MODULE_NAME}" STREQUAL "")
get_filename_component(SWIFTFILE_MODULE_NAME "${first_output}" NAME_WE)
message(SEND_ERROR
"No module name specified; did you mean to use MODULE_NAME "
"${SWIFTFILE_MODULE_NAME}?")
endif()
set(source_files)
foreach(file ${SWIFTFILE_SOURCES})
# Determine where this file is.
get_filename_component(file_path ${file} PATH)
if(IS_ABSOLUTE "${file_path}")
list(APPEND source_files "${file}")
else()
list(APPEND source_files "${CMAKE_CURRENT_SOURCE_DIR}/${file}")
endif()
endforeach()
# Compute flags for the Swift compiler.
set(swift_flags)
set(swift_module_flags)
_add_target_variant_swift_compile_flags(
"${SWIFTFILE_SDK}"
"${SWIFTFILE_ARCHITECTURE}"
"${SWIFT_STDLIB_BUILD_TYPE}"
"${SWIFT_STDLIB_ASSERTIONS}"
swift_flags
MACCATALYST_BUILD_FLAVOR "${maccatalyst_build_flavor}"
)
# Determine the subdirectory where the binary should be placed.
set(library_subdir_sdk "${SWIFTFILE_SDK}")
if(maccatalyst_build_flavor STREQUAL "ios-like")
set(library_subdir_sdk "MACCATALYST")
endif()
compute_library_subdir(library_subdir
"${library_subdir_sdk}" "${SWIFTFILE_ARCHITECTURE}")
if(NOT "${SWIFT_NATIVE_CLANG_TOOLS_PATH}" STREQUAL "")
list(APPEND swift_flags "-tools-directory" "${SWIFT_NATIVE_CLANG_TOOLS_PATH}")
endif()
# If we have a custom module cache path, use it.
if (SWIFT_MODULE_CACHE_PATH)
list(APPEND swift_flags "-module-cache-path" "${SWIFT_MODULE_CACHE_PATH}")
endif()
# Don't include libarclite in any build products by default.
list(APPEND swift_flags "-no-link-objc-runtime")
if(SWIFT_SIL_VERIFY_ALL)
list(APPEND swift_flags "-Xfrontend" "-sil-verify-all")
endif()
# The standard library and overlays are built resiliently when SWIFT_STDLIB_STABLE_ABI=On.
if(SWIFTFILE_IS_STDLIB AND SWIFT_STDLIB_STABLE_ABI)
list(APPEND swift_flags "-enable-library-evolution")
endif()
if(SWIFT_STDLIB_SINGLE_THREADED_RUNTIME)
list(APPEND swift_flags "-Xfrontend" "-assume-single-threaded")
endif()
if(NOT SWIFT_ENABLE_STDLIBCORE_EXCLUSIVITY_CHECKING AND SWIFTFILE_IS_STDLIB)
list(APPEND swift_flags "-Xfrontend" "-enforce-exclusivity=unchecked")
endif()
if(SWIFT_EMIT_SORTED_SIL_OUTPUT)
list(APPEND swift_flags "-Xfrontend" "-emit-sorted-sil")
endif()
if(NOT SWIFT_ENABLE_REFLECTION)
list(APPEND swift_flags "-Xfrontend" "-disable-reflection-metadata")
else()
list(APPEND swift_flags "-D" "SWIFT_ENABLE_REFLECTION")
endif()
# FIXME: Cleaner way to do this?
if(SWIFTFILE_IS_STDLIB_CORE)
list(APPEND swift_flags
"-nostdimport" "-parse-stdlib" "-module-name" "Swift")
list(APPEND swift_flags "-Xfrontend" "-group-info-path"
"-Xfrontend" "${GROUP_INFO_JSON_FILE}")
else()
list(APPEND swift_flags "-module-name" "${SWIFTFILE_MODULE_NAME}")
endif()
# Force swift 5 mode for Standard Library and overlays.
if (SWIFTFILE_IS_STDLIB)
list(APPEND swift_flags "-swift-version" "5")
endif()
if (SWIFTFILE_IS_SDK_OVERLAY)
list(APPEND swift_flags "-swift-version" "5")
endif()
if(SWIFTFILE_IS_SDK_OVERLAY)
list(APPEND swift_flags "-autolink-force-load")
endif()
# Don't need to link runtime compatibility libraries for older runtimes
# into the new runtime.
if (SWIFTFILE_IS_STDLIB OR SWIFTFILE_IS_SDK_OVERLAY)
list(APPEND swift_flags "-runtime-compatibility-version" "none")
list(APPEND swift_flags "-disable-autolinking-runtime-compatibility-dynamic-replacements")
list(APPEND swift_flags "-Xfrontend" "-disable-autolinking-runtime-compatibility-concurrency")
endif()
if(NOT SWIFT_STDLIB_SHORT_MANGLING_LOOKUPS)
list(APPEND swift_flags "-Xfrontend" "-disable-standard-substitutions-in-reflection-mangling")
endif()
if (SWIFTFILE_IS_STDLIB_CORE OR SWIFTFILE_IS_SDK_OVERLAY)
list(APPEND swift_flags "-warn-swift3-objc-inference-complete")
endif()
if(NOT SWIFT_STDLIB_ENABLE_OBJC_INTEROP)
list(APPEND swift_flags "-Xfrontend" "-disable-objc-interop")
endif()
if(SWIFT_STDLIB_EXPERIMENTAL_HERMETIC_SEAL_AT_LINK)
list(APPEND swift_flags "-experimental-hermetic-seal-at-link")
endif()
list(APPEND swift_flags ${SWIFT_STDLIB_EXTRA_SWIFT_COMPILE_FLAGS})
list(APPEND swift_flags ${SWIFT_EXPERIMENTAL_EXTRA_FLAGS})
if(SWIFTFILE_OPT_FLAGS)
list(APPEND swift_flags ${SWIFTFILE_OPT_FLAGS})
endif()
list(APPEND swift_flags ${SWIFTFILE_FLAGS})
set(dirs_to_create)
foreach(output ${SWIFTFILE_OUTPUT})
get_filename_component(objdir "${output}" PATH)
list(APPEND dirs_to_create "${objdir}")
endforeach()
set(module_file)
set(module_file_static)
set(module_doc_file)
set(module_doc_file_static)
set(interface_file)
set(interface_file_static)
get_bootstrapping_path(lib_dir ${SWIFTLIB_DIR} "${SWIFTFILE_BOOTSTRAPPING}")
if(NOT SWIFTFILE_IS_MAIN)
# Determine the directory where the module file should be placed.
if(SWIFTFILE_MODULE_DIR)
set(module_dir "${SWIFTFILE_MODULE_DIR}")
elseif(SWIFTFILE_IS_STDLIB)
set(module_dir "${lib_dir}/${library_subdir}")
else()
message(FATAL_ERROR "Don't know where to put the module files")
endif()
list(APPEND swift_flags "-parse-as-library")
set(module_base "${module_dir}/${SWIFTFILE_MODULE_NAME}")
set(module_dir_static "${SWIFTSTATICLIB_DIR}/${library_subdir}")
set(module_base_static "${module_dir_static}/${SWIFTFILE_MODULE_NAME}")
set(module_triple ${SWIFT_SDK_${library_subdir_sdk}_ARCH_${SWIFTFILE_ARCHITECTURE}_MODULE})
set(specific_module_dir "${module_base}.swiftmodule")
set(module_base "${module_base}.swiftmodule/${module_triple}")
set(specific_module_dir_static "${module_base_static}.swiftmodule")
set(module_base_static "${module_base_static}.swiftmodule/${module_triple}")
set(module_file "${module_base}.swiftmodule")
set(module_doc_file "${module_base}.swiftdoc")
set(module_file_static "${module_base_static}.swiftmodule")
set(module_doc_file_static "${module_base_static}.swiftdoc")
# FIXME: These don't really belong inside the swiftmodule, but there's not
# an obvious alternate place to put them.
set(sib_file "${module_base}.Onone.sib")
set(sibopt_file "${module_base}.O.sib")
set(sibgen_file "${module_base}.sibgen")
if(SWIFT_ENABLE_MODULE_INTERFACES)
set(interface_file "${module_base}.swiftinterface")
set(interface_file_static "${module_base_static}.swiftinterface")
list(APPEND swift_module_flags
"-emit-module-interface-path" "${interface_file}")
endif()
if (NOT SWIFTFILE_IS_STDLIB_CORE)
list(APPEND swift_module_flags
"-Xfrontend" "-experimental-skip-non-inlinable-function-bodies")
endif()
set(module_outputs "${module_file}" "${module_doc_file}")
if(interface_file)
list(APPEND module_outputs "${interface_file}")
endif()
set(optional_arg)
if(SWIFTFILE_SDK IN_LIST SWIFT_DARWIN_PLATFORMS OR
SWIFTFILE_SDK STREQUAL "MACCATALYST")
# Allow installation of stdlib without building all variants on Darwin.
set(optional_arg "OPTIONAL")
endif()
swift_install_in_component(DIRECTORY "${specific_module_dir}"
DESTINATION "lib${LLVM_LIBDIR_SUFFIX}/swift/${library_subdir}"
COMPONENT "${SWIFTFILE_INSTALL_IN_COMPONENT}")
if(SWIFTFILE_STATIC)
swift_install_in_component(DIRECTORY "${specific_module_dir_static}"
DESTINATION "lib${LLVM_LIBDIR_SUFFIX}/swift_static/${library_subdir}"
COMPONENT "${SWIFTFILE_INSTALL_IN_COMPONENT}")
endif()
# macCatalyst zippered module setup
if(maccatalyst_build_flavor STREQUAL "zippered")
compute_library_subdir(maccatalyst_library_subdir
"MACCATALYST" "${SWIFTFILE_ARCHITECTURE}")
if(SWIFTFILE_MODULE_DIR)
set(maccatalyst_module_dir "${SWIFTFILE_MODULE_DIR}")
elseif(SWIFTFILE_IS_STDLIB)
set(maccatalyst_module_dir "${lib_dir}/${maccatalyst_library_subdir}")
else()
message(FATAL_ERROR "Don't know where to put the module files")
endif()
set(maccatalyst_specific_module_dir
"${maccatalyst_module_dir}/${SWIFTFILE_MODULE_NAME}.swiftmodule")
set(maccatalyst_module_triple ${SWIFT_SDK_MACCATALYST_ARCH_${SWIFTFILE_ARCHITECTURE}_MODULE})
set(maccatalyst_module_base "${maccatalyst_specific_module_dir}/${maccatalyst_module_triple}")
set(maccatalyst_module_file "${maccatalyst_module_base}.swiftmodule")
set(maccatalyst_module_doc_file "${maccatalyst_module_base}.swiftdoc")
set(maccatalyst_module_outputs "${maccatalyst_module_file}" "${maccatalyst_module_doc_file}")
if(SWIFT_ENABLE_MODULE_INTERFACES)
set(maccatalyst_interface_file "${maccatalyst_module_base}.swiftinterface")
list(APPEND maccatalyst_module_outputs "${maccatalyst_interface_file}")
else()
set(maccatalyst_interface_file)
endif()
swift_install_in_component(DIRECTORY ${maccatalyst_specific_module_dir}
DESTINATION "lib${LLVM_LIBDIR_SUFFIX}/swift/${maccatalyst_library_subdir}"
COMPONENT "${SWIFTFILE_INSTALL_IN_COMPONENT}"
"${optional_arg}")
endif()
# If we have extra regexp flags, check if we match any of the regexps. If so
# add the relevant flags to our swift_flags.
if (SWIFT_EXPERIMENTAL_EXTRA_REGEXP_FLAGS OR SWIFT_EXPERIMENTAL_EXTRA_NEGATIVE_REGEXP_FLAGS)
set(extra_swift_flags_for_module)
_add_extra_swift_flags_for_module("${SWIFTFILE_MODULE_NAME}" extra_swift_flags_for_module)
if (extra_swift_flags_for_module)
list(APPEND swift_flags ${extra_swift_flags_for_module})
endif()
endif()
endif()
set(module_outputs "${module_file}" "${module_doc_file}")
set(module_outputs_static "${module_file_static}" "${module_doc_file_static}")
if(interface_file)
list(APPEND module_outputs "${interface_file}")
list(APPEND module_outputs_static "${interface_file_static}")
endif()
swift_install_in_component(DIRECTORY "${specific_module_dir}"
DESTINATION "lib${LLVM_LIBDIR_SUFFIX}/swift/${library_subdir}"
COMPONENT "${SWIFTFILE_INSTALL_IN_COMPONENT}"
OPTIONAL
PATTERN "Project" EXCLUDE)
if(SWIFTFILE_STATIC)
swift_install_in_component(DIRECTORY "${specific_module_dir_static}"
DESTINATION "lib${LLVM_LIBDIR_SUFFIX}/swift_static/${library_subdir}"
COMPONENT "${SWIFTFILE_INSTALL_IN_COMPONENT}"
OPTIONAL
PATTERN "Project" EXCLUDE)
endif()
set(line_directive_tool "${SWIFT_SOURCE_DIR}/utils/line-directive")
if(CMAKE_HOST_SYSTEM_NAME STREQUAL Windows)
set(HOST_EXECUTABLE_SUFFIX .exe)
endif()
if(SWIFT_BUILD_RUNTIME_WITH_HOST_COMPILER)
if(SWIFT_PREBUILT_SWIFT)
set(swift_compiler_tool "${SWIFT_NATIVE_SWIFT_TOOLS_PATH}/swiftc${HOST_EXECUTABLE_SUFFIX}")
elseif(CMAKE_Swift_COMPILER)
set(swift_compiler_tool "${CMAKE_Swift_COMPILER}")
else()
message(ERROR "Must pass in prebuilt tools using SWIFT_NATIVE_SWIFT_TOOLS_PATH or set CMAKE_Swift_COMPILER")
endif()
else()
set(swift_compiler_tool "${SWIFT_NATIVE_SWIFT_TOOLS_PATH}/swiftc${HOST_EXECUTABLE_SUFFIX}")
get_bootstrapping_path(swift_compiler_tool
"${SWIFT_NATIVE_SWIFT_TOOLS_PATH}/swiftc${HOST_EXECUTABLE_SUFFIX}"
"${SWIFTFILE_BOOTSTRAPPING}")
if(NOT ${SWIFTFILE_BOOTSTRAPPING} STREQUAL "")
set(target_suffix "-bootstrapping${SWIFTFILE_BOOTSTRAPPING}")
endif()
if(NOT BUILD_STANDALONE)
list(APPEND swift_flags "-resource-dir" "${lib_dir}")
endif()
endif()
set(swift_compiler_tool_dep)
if(SWIFT_INCLUDE_TOOLS)
# Depend on the binary itself, in addition to the symlink.
set(swift_compiler_tool_dep "swift-frontend${target_suffix}")
endif()
# If there are more than one output files, we assume that they are specified
# otherwise e.g. with an output file map.
set(output_option)
if (${num_outputs} EQUAL 1)
set(output_option "-o" ${first_output})
endif()
set(embed_bitcode_option)
if (SWIFTFILE_EMBED_BITCODE)
set(embed_bitcode_option "-embed-bitcode")
endif()
set(main_command "-c")
if (SWIFT_CHECK_INCREMENTAL_COMPILATION)
set(swift_compiler_tool "${SWIFT_SOURCE_DIR}/utils/check-incremental" "${swift_compiler_tool}")
endif()
if(SWIFTFILE_IS_STDLIB)
get_bootstrapping_swift_lib_dir(bs_lib_dir "${SWIFTFILE_BOOTSTRAPPING}")
if(bs_lib_dir)
# When building the stdlib with libswift bootstrapping, the compiler needs
# to pick up the stdlib from the previous bootstrapping stage, because the
# stdlib in the current stage is not built yet.
if(${SWIFT_HOST_VARIANT_SDK} IN_LIST SWIFT_APPLE_PLATFORMS)
set(set_environment_args "${CMAKE_COMMAND}" "-E" "env" "DYLD_LIBRARY_PATH=${bs_lib_dir}")
elseif(SWIFT_HOST_VARIANT_SDK STREQUAL "LINUX")
set(set_environment_args "${CMAKE_COMMAND}" "-E" "env" "LD_LIBRARY_PATH=${bs_lib_dir}")
else()
message(FATAL_ERROR "TODO: bootstrapping support for ${SWIFT_HOST_VARIANT_SDK}")
endif()
endif()
endif()
if (SWIFT_REPORT_STATISTICS)
list(GET dirs_to_create 0 first_obj_dir)
list(APPEND swift_flags "-stats-output-dir" ${first_obj_dir})
endif()
set(standard_outputs ${SWIFTFILE_OUTPUT})
set(sib_outputs "${sib_file}")
set(sibopt_outputs "${sibopt_file}")
set(sibgen_outputs "${sibgen_file}")
# macCatalyst zippered swiftmodule
if(maccatalyst_build_flavor STREQUAL "zippered")
set(maccatalyst_swift_flags "${swift_flags}")
list(APPEND maccatalyst_swift_flags
"-I" "${lib_dir}/${maccatalyst_library_subdir}")
set(maccatalyst_swift_module_flags ${swift_module_flags})
list(FIND maccatalyst_swift_module_flags "${interface_file}" interface_file_index)
if(NOT interface_file_index EQUAL -1)
list(INSERT maccatalyst_swift_module_flags ${interface_file_index} "${maccatalyst_interface_file}")
math(EXPR old_interface_file_index "${interface_file_index} + 1")
list(REMOVE_AT maccatalyst_swift_module_flags ${old_interface_file_index})
endif()
# We still need to change the main swift flags
# so we can use the correct modules
# when building for macOS
list(APPEND swift_flags
"-I" "${lib_dir}/${library_subdir}")
elseif(maccatalyst_build_flavor STREQUAL "ios-like")
compute_library_subdir(maccatalyst_library_subdir
"MACCATALYST" "${SWIFTFILE_ARCHITECTURE}")
list(APPEND swift_flags
"-I" "${lib_dir}/${maccatalyst_library_subdir}")
else()
# Allow import of other Swift modules we just built.
list(APPEND swift_flags
"-I" "${lib_dir}/${library_subdir}")
# FIXME: should we use '-resource-dir' here? Seems like it has no advantage
# over '-I' in this case.
endif()
if(XCODE)
# HACK: work around an issue with CMake Xcode generator and the Swift
# driver.
#
# The Swift driver does not update the mtime of the output files if the
# existing output files on disk are identical to the ones that are about
# to be written. This behavior confuses the makefiles used in CMake Xcode
# projects: the makefiles will not consider everything up to date after
# invoking the compiler. As a result, the standard library gets rebuilt
# multiple times during a single build.
#
# To work around this issue we touch the output files so that their mtime
# always gets updated.
set(command_touch_standard_outputs
COMMAND "${CMAKE_COMMAND}" -E touch ${standard_outputs})
set(command_touch_module_outputs
COMMAND "${CMAKE_COMMAND}" -E touch ${module_outputs})
set(command_touch_sib_outputs
COMMAND "${CMAKE_COMMAND}" -E touch ${sib_outputs})
set(command_touch_sibopt_outputs
COMMAND "${CMAKE_COMMAND}" -E touch ${sibopt_outputs})
set(command_touch_sibgen_outputs
COMMAND "${CMAKE_COMMAND}" -E touch ${sibgen_outputs})
# macCatalyst zippered outputs
if(maccatalyst_build_flavor STREQUAL "zippered")
set(command_touch_maccatalyst_module_outputs
COMMAND "${CMAKE_COMMAND}" -E touch ${maccatalyst_module_outputs})
endif()
endif()
# First generate the obj dirs
list(REMOVE_DUPLICATES dirs_to_create)
add_custom_command_target(
create_dirs_dependency_target
COMMAND "${CMAKE_COMMAND}" -E make_directory ${dirs_to_create}
OUTPUT ${dirs_to_create}
COMMENT "Generating dirs for ${first_output}")
# Then we can compile both the object files and the swiftmodule files
# in parallel in this target for the object file, and ...
# Windows doesn't support long command line paths, of 8191 chars or over. We
# need to work around this by avoiding long command line arguments. This can
# be achieved by writing the list of file paths to a file, then reading that
# list in the Python script.
string(REPLACE ";" "'\n'" source_files_quoted "${source_files}")
string(SHA1 file_name "'${source_files_quoted}'")
set(file_path "${CMAKE_CURRENT_BINARY_DIR}/${file_name}.txt")
file(WRITE "${file_path}" "'${source_files_quoted}'")
# If this platform/architecture combo supports backward deployment to old
# Objective-C runtimes, we need to copy a YAML file with legacy type layout
# information to the build directory so that the compiler can find it.
#
# See stdlib/CMakeLists.txt and TypeConverter::TypeConverter() in
# lib/IRGen/GenType.cpp.
if(SWIFTFILE_IS_STDLIB_CORE)
set(SWIFTFILE_PLATFORM "${SWIFT_SDK_${SWIFTFILE_SDK}_LIB_SUBDIR}")
set(copy_legacy_layouts_dep
"copy-legacy-layouts-${SWIFTFILE_PLATFORM}-${SWIFTFILE_ARCHITECTURE}${target_suffix}")
else()
set(copy_legacy_layouts_dep)
endif()
add_custom_command_target(
dependency_target
COMMAND
${set_environment_args}
"$<TARGET_FILE:Python3::Interpreter>" "${line_directive_tool}" "@${file_path}" --
"${swift_compiler_tool}" "${main_command}" ${swift_flags}
${output_option} ${embed_bitcode_option} "@${file_path}"
${command_touch_standard_outputs}
OUTPUT ${standard_outputs}
DEPENDS
"${line_directive_tool}"
"${file_path}"
${swift_compiler_tool_dep}
${source_files} ${SWIFTFILE_DEPENDS}
${swift_ide_test_dependency}
${create_dirs_dependency_target}
${copy_legacy_layouts_dep}
COMMENT "Compiling ${first_output}")
set("${dependency_target_out_var_name}" "${dependency_target}" PARENT_SCOPE)
# This is the target to generate:
#
# 1. *.swiftmodule
# 2. *.swiftdoc
# 3. *.swiftinterface
# 4. *.Onone.sib
# 5. *.O.sib
# 6. *.sibgen
#
# Only 1,2,3 are built by default. 4,5,6 are utility targets for use by
# engineers and thus even though the targets are generated, the targets are
# not built by default.
#
# We only build these when we are not producing a main file. We could do this
# with sib/sibgen, but it is useful for looking at the stdlib.
if (NOT SWIFTFILE_IS_MAIN)
add_custom_command_target(
module_dependency_target
COMMAND
"${CMAKE_COMMAND}" "-E" "remove" "-f" ${module_outputs}
COMMAND
"${CMAKE_COMMAND}" "-E" "make_directory" ${module_dir}
${specific_module_dir}
COMMAND
${set_environment_args}
"$<TARGET_FILE:Python3::Interpreter>" "${line_directive_tool}" "@${file_path}" --
"${swift_compiler_tool}" "-emit-module" "-o" "${module_file}"
"-avoid-emit-module-source-info"
${swift_flags} ${swift_module_flags} "@${file_path}"
${command_touch_module_outputs}
OUTPUT ${module_outputs}
DEPENDS
"${line_directive_tool}"
"${file_path}"
${swift_compiler_tool_dep}
${source_files} ${SWIFTFILE_DEPENDS}
${swift_ide_test_dependency}
${create_dirs_dependency_target}
${copy_legacy_layouts_dep}
COMMENT "Generating ${module_file}")
if(SWIFTFILE_STATIC)
set(command_copy_interface_file)
if(interface_file)
set(command_copy_interface_file COMMAND "${CMAKE_COMMAND}" "-E" "copy" ${interface_file} ${interface_file_static})
endif()
add_custom_command_target(
module_dependency_target_static
COMMAND
"${CMAKE_COMMAND}" "-E" "make_directory" ${module_dir_static}
${specific_module_dir_static}
COMMAND
"${CMAKE_COMMAND}" "-E" "copy" ${module_file} ${module_file_static}
COMMAND
"${CMAKE_COMMAND}" "-E" "copy" ${module_doc_file} ${module_doc_file_static}
${command_copy_interface_file}
OUTPUT ${module_outputs_static}
DEPENDS
"${module_dependency_target}"
COMMENT "Generating ${module_file}")
set("${dependency_module_target_out_var_name}" "${module_dependency_target_static}" PARENT_SCOPE)
else()
set("${dependency_module_target_out_var_name}" "${module_dependency_target}" PARENT_SCOPE)
endif()
# macCatalyst zippered swiftmodule
if(maccatalyst_build_flavor STREQUAL "zippered")
get_target_triple(ios_like_target_triple ignored_target_variant
"${SWIFTFILE_SDK}"
"${SWIFTFILE_ARCHITECTURE}"
MACCATALYST_BUILD_FLAVOR "ios-like")
# Remove previous -target <triple> and -target-variant flags from
# the zippered Swift flags and add an ios-like target.
remove_given_flag(maccatalyst_swift_flags "target")
remove_given_flag(maccatalyst_swift_flags "target-variant")
list(APPEND maccatalyst_swift_flags
"-target" "${ios_like_target_triple}")
add_custom_command_target(
maccatalyst_module_dependency_target
COMMAND
"${CMAKE_COMMAND}" "-E" "remove" "-f" ${maccatalyst_module_outputs}
COMMAND
"${CMAKE_COMMAND}" "-E" "make_directory" ${maccatalyst_specific_module_dir}
COMMAND
${set_environment_args}
"$<TARGET_FILE:Python3::Interpreter>" "${line_directive_tool}" "@${file_path}" --
"${swift_compiler_tool}" "-emit-module" "-o" "${maccatalyst_module_file}"
${maccatalyst_swift_flags} ${maccatalyst_swift_module_flags} "@${file_path}"
${command_touch_maccatalyst_module_outputs}
OUTPUT
${maccatalyst_module_outputs}
DEPENDS
"${line_directive_tool}"
"${file_path}"
${swift_compiler_tool_dep}
${source_files}
${SWIFTFILE_DEPENDS}
${swift_ide_test_dependency}
${obj_dirs_dependency_target}
${copy_legacy_layouts_dep}
COMMENT
"Generating ${maccatalyst_module_file}")
# Piggy-back on the same out-var as the regular swiftmodule
set("${dependency_module_target_out_var_name}"
"${module_dependency_target}"
"${maccatalyst_module_dependency_target}"
PARENT_SCOPE)
endif()
# This is the target to generate the .sib files. It is not built by default.
add_custom_command_target(
sib_dependency_target
COMMAND
${set_environment_args}
"$<TARGET_FILE:Python3::Interpreter>" "${line_directive_tool}" "@${file_path}" --
"${swift_compiler_tool}" "-emit-sib" "-o" "${sib_file}" ${swift_flags} -Onone
"@${file_path}"
${command_touch_sib_outputs}
OUTPUT ${sib_outputs}
DEPENDS
"${line_directive_tool}"
"${file_path}"
${swift_compiler_tool_dep}
${source_files} ${SWIFTFILE_DEPENDS}
${create_dirs_dependency_target}