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AddSwift.cmake
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# SWIFTLIB_DIR is the directory in the build tree where Swift resource files
# should be placed. Note that $CMAKE_CFG_INTDIR expands to "." for
# single-configuration builds.
set(SWIFTLIB_DIR
"${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib/swift")
set(SWIFTSTATICLIB_DIR
"${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib/swift_static")
function(_list_add_string_suffix input_list suffix result_var_name)
set(result)
foreach(element ${input_list})
list(APPEND result "${element}${suffix}")
endforeach()
set("${result_var_name}" "${result}" PARENT_SCOPE)
endfunction()
function(_list_escape_for_shell input_list result_var_name)
set(result "")
foreach(element ${input_list})
string(REPLACE " " "\\ " element "${element}")
set(result "${result}${element} ")
endforeach()
set("${result_var_name}" "${result}" PARENT_SCOPE)
endfunction()
function(add_dependencies_multiple_targets)
cmake_parse_arguments(
ADMT # prefix
"" # options
"" # single-value args
"TARGETS;DEPENDS" # multi-value args
${ARGN})
if(NOT "${ADMT_UNPARSED_ARGUMENTS}" STREQUAL "")
message(FATAL_ERROR "unrecognized arguments: ${ADMT_UNPARSED_ARGUMENTS}")
endif()
if(NOT "${ADMT_DEPENDS}" STREQUAL "")
foreach(target ${ADMT_TARGETS})
add_dependencies("${target}" ${ADMT_DEPENDS})
endforeach()
endif()
endfunction()
# Compute the library subdirectory to use for the given sdk and
# architecture, placing the result in 'result_var_name'.
function(compute_library_subdir result_var_name sdk arch)
set("${result_var_name}" "${SWIFT_SDK_${sdk}_LIB_SUBDIR}/${arch}" PARENT_SCOPE)
endfunction()
function(_add_variant_c_compile_link_flags
sdk arch build_type enable_assertions analyze_code_coverage
result_var_name)
set(result
${${result_var_name}}
"-target" "${SWIFT_SDK_${sdk}_ARCH_${arch}_TRIPLE}")
list(APPEND result
"-isysroot" "${SWIFT_SDK_${sdk}_PATH}")
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
list(APPEND result
"-arch" "${arch}"
"-F" "${SWIFT_SDK_${sdk}_PATH}/../../../Developer/Library/Frameworks"
"-m${SWIFT_SDK_${sdk}_VERSION_MIN_NAME}-version-min=${SWIFT_SDK_${sdk}_DEPLOYMENT_VERSION}")
if(analyze_code_coverage)
list(APPEND result "-fprofile-instr-generate"
"-fcoverage-mapping")
endif()
endif()
set("${result_var_name}" "${result}" PARENT_SCOPE)
endfunction()
function(_add_variant_c_compile_flags
sdk arch build_type enable_assertions analyze_code_coverage
result_var_name)
set(result ${${result_var_name}})
_add_variant_c_compile_link_flags(
"${sdk}"
"${arch}"
"${build_type}"
"${enable_assertions}"
FALSE
result)
is_build_type_optimized("${build_type}" optimized)
if(optimized)
list(APPEND result "-O2")
# Add -momit-leaf-frame-pointer on x86.
if("${arch}" STREQUAL "i386" OR "${arch}" STREQUAL "x86_64")
list(APPEND result "-momit-leaf-frame-pointer")
endif()
else()
list(APPEND result "-O0")
endif()
is_build_type_with_debuginfo("${build_type}" debuginfo)
if(debuginfo)
list(APPEND result "-g")
else()
list(APPEND result "-g0")
endif()
if(enable_assertions)
list(APPEND result "-UNDEBUG")
else()
list(APPEND result "-DNDEBUG")
endif()
if(analyze_code_coverage)
list(APPEND result "-fprofile-instr-generate"
"-fcoverage-mapping")
endif()
set("${result_var_name}" "${result}" PARENT_SCOPE)
endfunction()
function(_add_variant_swift_compile_flags
sdk arch build_type enable_assertions result_var_name)
set(result ${${result_var_name}})
list(APPEND result
"-sdk" "${SWIFT_SDK_${sdk}_PATH}"
"-target" "${SWIFT_SDK_${sdk}_ARCH_${arch}_TRIPLE}")
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
list(APPEND result
"-F" "${SWIFT_SDK_${sdk}_PATH}/../../../Developer/Library/Frameworks")
endif()
is_build_type_optimized("${build_type}" optimized)
if(optimized)
list(APPEND result "-O")
else()
list(APPEND result "-Onone")
endif()
is_build_type_with_debuginfo("${build_type}" debuginfo)
if(debuginfo)
list(APPEND result "-g")
endif()
if(enable_assertions)
list(APPEND result "-D" "INTERNAL_CHECKS_ENABLED")
endif()
set("${result_var_name}" "${result}" PARENT_SCOPE)
endfunction()
function(_add_variant_link_flags
sdk arch build_type enable_assertions analyze_code_coverage
result_var_name)
if("${sdk}" STREQUAL "")
message(FATAL_ERROR "Should specify an SDK")
endif()
if("${arch}" STREQUAL "")
message(FATAL_ERROR "Should specify an architecture")
endif()
set(result ${${result_var_name}})
_add_variant_c_compile_link_flags(
"${sdk}"
"${arch}"
"${build_type}"
"${enable_assertions}"
"${analyze_code_coverage}"
result)
if("${sdk}" STREQUAL "LINUX")
list(APPEND result "-lpthread" "-ldl" "-Wl,-Bsymbolic")
elseif("${sdk}" STREQUAL "FREEBSD")
list(APPEND result "-lpthread" "-Wl,-Bsymbolic")
else()
list(APPEND result "-lobjc")
endif()
set("${result_var_name}" "${result}" PARENT_SCOPE)
endfunction()
# Look up extra flags for a module that matches a regexp.
function(_add_extra_swift_flags_for_module module_name result_var_name)
set(result_list)
list(LENGTH SWIFT_EXPERIMENTAL_EXTRA_REGEXP_FLAGS listlen)
if (${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()
# Compile a swift file into an object file (as a library).
#
# Usage:
# _compile_swift_files(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
# [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. If not specified, the name
# # is derived from the output name
# [IS_STDLIB] # Install produced files.
# [EMIT_SIB] # Emit the file as a sib file instead of a .o
# )
function(_compile_swift_files dependency_target_out_var_name)
cmake_parse_arguments(SWIFTFILE
"IS_MAIN;IS_STDLIB;IS_STDLIB_CORE;IS_SDK_OVERLAY;EMIT_SIB"
"OUTPUT;MODULE_NAME;INSTALL_IN_COMPONENT"
"SOURCES;FLAGS;DEPENDS;SDK;ARCHITECTURE;API_NOTES;OPT_FLAGS;MODULE_DIR"
${ARGN})
# Check arguments.
list(LENGTH SWIFTFILE_OUTPUT num_outputs)
list(GET SWIFTFILE_OUTPUT 0 first_output)
if (${num_outputs} EQUAL 0)
message(FATAL_ERROR "OUTPUT must not be empty")
endif()
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()
if("${SWIFTFILE_SDK}" STREQUAL "")
message(FATAL_ERROR "Should specify an SDK")
endif()
if("${SWIFTFILE_ARCHITECTURE}" STREQUAL "")
message(FATAL_ERROR "Should specify an architecture")
endif()
if("${SWIFTFILE_INSTALL_IN_COMPONENT}" STREQUAL "")
message(FATAL_ERROR "INSTALL_IN_COMPONENT is required")
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}/${file}")
endif()
endforeach()
# Compute flags for the Swift compiler.
set(swift_flags)
_add_variant_swift_compile_flags(
"${SWIFTFILE_SDK}"
"${SWIFTFILE_ARCHITECTURE}"
"${SWIFT_STDLIB_BUILD_TYPE}"
"${SWIFT_STDLIB_ASSERTIONS}"
swift_flags)
# Determine the subdirectory where the binary should be placed.
compute_library_subdir(library_subdir
"${SWIFTFILE_SDK}" "${SWIFTFILE_ARCHITECTURE}")
# Allow import of other Swift modules we just built.
list(APPEND swift_flags
"-I" "${SWIFTLIB_DIR}/${library_subdir}")
# FIXME: should we use '-resource-dir' here? Seems like it has no advantage
# over '-I' in this case.
# If we have a custom module cache path, use it.
if (SWIFT_MODULE_CACHE_PATH)
list(APPEND swift_flags "-module-cache-path" "${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()
if(SWIFT_STDLIB_USE_ASSERT_CONFIG_RELEASE)
list(APPEND swift_flags "-assert-config" "Release")
endif()
if(SWIFT_EMIT_SORTED_SIL_OUTPUT)
list(APPEND swift_flags "-Xfrontend" "-emit-sorted-sil")
endif()
# FIXME: Cleaner way to do this?
if(SWIFTFILE_IS_STDLIB_CORE)
list(APPEND swift_flags
"-nostdimport" "-parse-stdlib" "-module-name" "Swift"
"-Xfrontend" "-sil-serialize-all")
endif()
if(SWIFTFILE_IS_SDK_OVERLAY)
list(APPEND swift_flags "-autolink-force-load")
endif()
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(obj_dirs)
foreach(output ${SWIFTFILE_OUTPUT})
get_filename_component(objdir "${output}" PATH)
list(APPEND obj_dirs "${objdir}")
endforeach()
list(REMOVE_DUPLICATES obj_dirs)
set(command_create_dirs)
foreach(objdir ${obj_dirs})
list(APPEND command_create_dirs
COMMAND "${CMAKE_COMMAND}" -E make_directory "${objdir}")
endforeach()
set(module_file)
set(module_doc_file)
if(NOT SWIFTFILE_IS_MAIN)
# Determine the directory where the module file should be placed.
if (SWIFTFILE_MODULE_NAME)
set(module_name "${SWIFTFILE_MODULE_NAME}")
list(APPEND swift_flags
"-module-name" "${module_name}")
else()
get_filename_component(module_name "${first_output}" NAME_WE)
endif()
if(SWIFTFILE_MODULE_DIR)
set(module_dir "${SWIFTFILE_MODULE_DIR}")
elseif(SWIFTFILE_IS_STDLIB)
set(module_dir "${SWIFTLIB_DIR}/${library_subdir}")
else()
message(FATAL_ERROR "Don't know where to put the module files")
endif()
if (NOT SWIFTFILE_EMIT_SIB)
# Right now sib files seem to not be output when we emit a module. So
# don't emit it.
set(module_file "${module_dir}/${module_name}.swiftmodule")
set(module_doc_file "${module_dir}/${module_name}.swiftdoc")
list(APPEND swift_flags
"-parse-as-library"
"-emit-module" "-emit-module-path" "${module_file}")
else()
list(APPEND swift_flags "-parse-as-library")
endif()
list(APPEND command_create_dirs
COMMAND "${CMAKE_COMMAND}" -E make_directory "${module_dir}")
# 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("${module_name}" extra_swift_flags_for_module)
if (extra_swift_flags_for_module)
list(APPEND swift_flags ${extra_swift_flags_for_module})
endif()
endif()
endif()
swift_install_in_component("${SWIFTFILE_INSTALL_IN_COMPONENT}"
FILES "${module_file}" "${module_doc_file}"
DESTINATION "lib${LLVM_LIBDIR_SUFFIX}/swift/${library_subdir}")
# Generate API notes if requested.
set(command_create_apinotes)
set(depends_create_apinotes)
set(apinote_files)
# If we use sib don't emit api notes for now.
if (NOT SWIFTFILE_EMIT_SIB)
foreach(apinote_module ${SWIFTFILE_API_NOTES})
set(apinote_file "${module_dir}/${apinote_module}.apinotesc")
set(apinote_input_file
"${SWIFT_API_NOTES_PATH}/${apinote_module}.apinotes")
set(CLANG_APINOTES "${SWIFT_NATIVE_CLANG_TOOLS_PATH}/clang")
list(APPEND command_create_apinotes
COMMAND
"${CLANG_APINOTES}" "-cc1apinotes" "-yaml-to-binary"
"-o" "${apinote_file}"
"-target" "${SWIFT_SDK_${SWIFTFILE_SDK}_ARCH_${SWIFTFILE_ARCHITECTURE}_TRIPLE}"
"${apinote_input_file}")
list(APPEND depends_create_apinotes "${apinote_input_file}")
list(APPEND apinote_files "${apinote_file}")
swift_install_in_component("${SWIFTFILE_INSTALL_IN_COMPONENT}"
FILES ${apinote_file}
DESTINATION "lib${LLVM_LIBDIR_SUFFIX}/swift/${library_subdir}")
endforeach()
endif()
set(line_directive_tool "${SWIFT_SOURCE_DIR}/utils/line-directive")
set(swift_compiler_tool "${SWIFT_NATIVE_SWIFT_TOOLS_PATH}/swiftc")
set(swift_compiler_tool_dep)
if(SWIFT_BUILD_TOOLS)
# Depend on the binary itself, in addition to the symlink.
set(swift_compiler_tool_dep "swift")
endif()
# If there are more than one output files, we assume that they are specified
# otherwise e.g. with an output file map.
set(output_option)
if (${num_outputs} EQUAL 1)
set(output_option "-o" ${first_output})
endif()
set(main_command "-c")
if (SWIFTFILE_EMIT_SIB)
# Change the command to emit-sib if we are asked to emit sib
set(main_command "-emit-sib")
endif()
add_custom_command_target(
dependency_target
${command_create_dirs}
# Create API notes before compiling, because this will affect the APIs
# the overlay sees.
${command_create_apinotes}
COMMAND
"${line_directive_tool}" "${source_files}" --
"${swift_compiler_tool}" "${main_command}" ${swift_flags}
${output_option} "${source_files}"
OUTPUT
${SWIFTFILE_OUTPUT} "${module_file}" "${module_doc_file}"
${apinote_files}
DEPENDS
${swift_compiler_tool_dep}
${source_files} ${SWIFTFILE_DEPENDS}
${swift_ide_test_dependency} ${depends_create_apinotes}
COMMENT "Compiling ${first_output}")
set("${dependency_target_out_var_name}" "${dependency_target}" PARENT_SCOPE)
# Make sure the build system knows the file is a generated object file.
set_source_files_properties(${SWIFTFILE_OUTPUT}
PROPERTIES
GENERATED true
EXTERNAL_OBJECT true
LANGUAGE C
OBJECT_DEPENDS "${source_files}")
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)
function(handle_swift_sources
dependency_target_out_var_name sourcesvar externalvar name)
cmake_parse_arguments(SWIFTSOURCES
"IS_MAIN;IS_STDLIB;IS_STDLIB_CORE;IS_SDK_OVERLAY"
"SDK;ARCHITECTURE;INSTALL_IN_COMPONENT"
"DEPENDS;API_NOTES;COMPILE_FLAGS"
${ARGN})
translate_flag(${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(${SWIFTSOURCES_IS_SDK_OVERLAY} "IS_SDK_OVERLAY"
IS_SDK_OVERLAY_arg)
if(SWIFTSOURCES_IS_MAIN)
set(SWIFTSOURCES_INSTALL_IN_COMPONENT never_install)
endif()
# Check arguments.
if ("${SWIFTSOURCES_SDK}" STREQUAL "")
message(FATAL_ERROR "Should specify an SDK")
endif()
if ("${SWIFTSOURCES_ARCHITECTURE}" STREQUAL "")
message(FATAL_ERROR "Should specify an architecture")
endif()
if("${SWIFTSOURCES_INSTALL_IN_COMPONENT}" STREQUAL "")
message(FATAL_ERROR "INSTALL_IN_COMPONENT is required")
endif()
# Clear the result variable.
set("${dependency_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)
# Special-case hack to create Swift.o for the core standard library.
if(SWIFTSOURCES_IS_STDLIB_CORE)
set(swift_obj_base "Swift")
else()
# Otherwise, get the name from the first swift input file. Also a hack!
# TODO: Fix it, <rdar://problem/17535693>.
list(GET swift_sources 0 swift_obj_base)
get_filename_component(swift_obj_base ${swift_obj_base} NAME_WE)
endif()
compute_library_subdir(SWIFTSOURCES_LIBRARY_SUBDIR
"${SWIFTSOURCES_SDK}" "${SWIFTSOURCES_ARCHITECTURE}")
set(objsubdir "/${SWIFTSOURCES_LIBRARY_SUBDIR}")
file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}${objsubdir}")
set(swift_obj
"${CMAKE_CURRENT_BINARY_DIR}${objsubdir}/${swift_obj_base}${CMAKE_C_OUTPUT_EXTENSION}")
# FIXME: We shouldn't /have/ to build things in a single process.
# <rdar://problem/15972329>
list(APPEND swift_compile_flags "-force-single-frontend-invocation")
_compile_swift_files(
dependency_target
OUTPUT ${swift_obj}
SOURCES ${swift_sources}
DEPENDS ${SWIFTSOURCES_DEPENDS}
FLAGS ${swift_compile_flags}
SDK ${SWIFTSOURCES_SDK}
ARCHITECTURE ${SWIFTSOURCES_ARCHITECTURE}
API_NOTES ${SWIFTSOURCES_API_NOTES}
${IS_MAIN_arg}
${IS_STDLIB_arg}
${IS_STDLIB_CORE_arg}
${IS_SDK_OVERLAY_arg}
${STATIC_arg}
INSTALL_IN_COMPONENT "${SWIFTSOURCES_INSTALL_IN_COMPONENT}")
set("${dependency_target_out_var_name}" "${dependency_target}" PARENT_SCOPE)
list(APPEND result ${swift_obj})
endif()
llvm_process_sources(result ${result})
set(${sourcesvar} "${result}" PARENT_SCOPE)
set(${externalvar} ${swift_sources} PARENT_SCOPE)
endfunction()
# Add a universal binary target created from the output of the given
# set of targets by running 'lipo'.
#
# Usage:
# _add_swift_lipo_target(
# target # The name of the target to create
# output # The file to be created by this target
# source_targets... # The source targets whose outputs will be
# # lipo'd into the output.
# )
function(_add_swift_lipo_target target output)
if("${target}" STREQUAL "")
message(FATAL_ERROR "target is required")
endif()
if("${output}" STREQUAL "")
message(FATAL_ERROR "output is required")
endif()
set(source_targets ${ARGN})
# Gather the source binaries.
set(source_binaries)
foreach(source_target ${source_targets})
if(SWIFT_CMAKE_HAS_GENERATOR_EXPRESSIONS)
list(APPEND source_binaries $<TARGET_FILE:${source_target}>)
else()
get_property(source_binary
TARGET ${source_target}
PROPERTY LOCATION)
list(APPEND source_binaries "${source_binary}")
endif()
endforeach()
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
# Use lipo to create the final binary.
add_custom_command_target(unused_var
COMMAND "${LIPO}" "-create" "-output" "${output}" ${source_binaries}
CUSTOM_TARGET_NAME "${target}"
OUTPUT "${output}"
DEPENDS ${source_targets})
else()
# We don't know how to create fat binaries for other platforms.
add_custom_command_target(unused_var
COMMAND "${CMAKE_COMMAND}" "-E" "copy" "${source_binaries}" "${output}"
CUSTOM_TARGET_NAME "${target}"
OUTPUT "${output}"
DEPENDS ${source_targets})
endif()
endfunction()
# After target 'dst_target' is built from its own object files, merge the
# contents of 'src_target' into it. 'dst_target' and 'src_target' must be
# static-library targets.
function(_target_merge_static_library dst_target src_target)
add_dependencies("${dst_target}" "${src_target}")
set(unpack_dir "${CMAKE_BINARY_DIR}/tmp/unpack/${dst_target}")
add_custom_command(TARGET "${dst_target}" POST_BUILD
COMMAND "${CMAKE_COMMAND}" -E make_directory "${unpack_dir}"
COMMAND cd "${unpack_dir}"
COMMAND "${CMAKE_AR}" -x "$<TARGET_FILE:${src_target}>"
COMMAND "${CMAKE_AR}" -r "$<TARGET_FILE:${dst_target}>" ./*.o
COMMAND cd "${CMAKE_BINARY_DIR}"
COMMAND "${CMAKE_COMMAND}" -E remove_directory "${unpack_dir}"
)
endfunction()
# Add a single variant of a new Swift library.
#
# Usage:
# _add_swift_library_single(
# target
# name
# [SHARED]
# [SDK sdk]
# [ARCHITECTURE architecture]
# [DEPENDS dep1 ...]
# [LINK_LIBRARIES dep1 ...]
# [FRAMEWORK_DEPENDS dep1 ...]
# [FRAMEWORK_DEPENDS_WEAK dep1 ...]
# [COMPONENT_DEPENDS comp1 ...]
# [C_COMPILE_FLAGS flag1...]
# [SWIFT_COMPILE_FLAGS flag1...]
# [LINK_FLAGS flag1...]
# [API_NOTES_NON_OVERLAY]
# [FILE_DEPENDS target1 ...]
# [DONT_EMBED_BITCODE]
# [IS_STDLIB]
# [IS_STDLIB_CORE]
# [IS_SDK_OVERLAY]
# INSTALL_IN_COMPONENT comp
# source1 [source2 source3 ...])
#
# target
# Name of the target (e.g., swiftParse-IOS-armv7).
#
# name
# Name of the library (e.g., swiftParse).
#
# SHARED
# Build a shared library.
#
# SDK sdk
# SDK to build for.
#
# ARCHITECTURE
# Architecture to build for.
#
# DEPENDS
# Targets that this library depends on.
#
# LINK_LIBRARIES
# Libraries this library depends on.
#
# FRAMEWORK_DEPENDS
# System frameworks this library depends on.
#
# FRAMEWORK_DEPENDS_WEAK
# System frameworks this library depends on that should be weakly-linked.
#
# COMPONENT_DEPENDS
# LLVM components this library depends on.
#
# C_COMPILE_FLAGS
# Extra compile flags (C, C++, ObjC).
#
# SWIFT_COMPILE_FLAGS
# Extra compile flags (Swift).
#
# LINK_FLAGS
# Extra linker flags.
#
# API_NOTES_NON_OVERLAY
# Generate API notes for non-overlayed modules with this target.
#
# FILE_DEPENDS
# Additional files this library depends on.
#
# DONT_EMBED_BITCODE
# Don't embed LLVM bitcode in this target, even if it is enabled globally.
#
# IS_STDLIB
# Install library dylib and swift module files to lib/swift.
#
# IS_STDLIB_CORE
# Compile as the standard library core.
#
# IS_SDK_OVERLAY
# Treat the library as a part of the Swift SDK overlay.
#
# INSTALL_IN_COMPONENT comp
# The Swift installation component that this library belongs to.
#
# source1 ...
# Sources to add into this library
function(_add_swift_library_single target name)
set(SWIFTLIB_SINGLE_options
SHARED IS_STDLIB IS_STDLIB_CORE IS_SDK_OVERLAY
API_NOTES_NON_OVERLAY DONT_EMBED_BITCODE)
cmake_parse_arguments(SWIFTLIB_SINGLE
"${SWIFTLIB_SINGLE_options}"
"SDK;ARCHITECTURE;INSTALL_IN_COMPONENT"
"DEPENDS;LINK_LIBRARIES;FRAMEWORK_DEPENDS;FRAMEWORK_DEPENDS_WEAK;COMPONENT_DEPENDS;C_COMPILE_FLAGS;SWIFT_COMPILE_FLAGS;LINK_FLAGS;PRIVATE_LINK_LIBRARIES;INTERFACE_LINK_LIBRARIES;FILE_DEPENDS"
${ARGN})
set(SWIFTLIB_SINGLE_SOURCES ${SWIFTLIB_SINGLE_UNPARSED_ARGUMENTS})
translate_flags(SWIFTLIB_SINGLE "${SWIFTLIB_SINGLE_options}")
# Check arguments.
if ("${SWIFTLIB_SINGLE_SDK}" STREQUAL "")
message(FATAL_ERROR "Should specify an SDK")
endif()
if ("${SWIFTLIB_SINGLE_ARCHITECTURE}" STREQUAL "")
message(FATAL_ERROR "Should specify an architecture")
endif()
if("${SWIFTLIB_SINGLE_INSTALL_IN_COMPONENT}" STREQUAL "")
message(FATAL_ERROR "INSTALL_IN_COMPONENT is required")
endif()
# Determine the subdirectory where this library will be installed.
set(SWIFTLIB_SINGLE_SUBDIR
"${SWIFT_SDK_${SWIFTLIB_SINGLE_SDK}_LIB_SUBDIR}/${SWIFTLIB_SINGLE_ARCHITECTURE}")
# Include LLVM Bitcode slices for iOS, Watch OS, and Apple TV OS device libraries.
if(SWIFT_EMBED_BITCODE_SECTION AND NOT SWIFTLIB_DONT_EMBED_BITCODE)
if("${SWIFTLIB_SINGLE_SDK}" STREQUAL "IOS" OR "${SWIFTLIB_SINGLE_SDK}" STREQUAL "TVOS" OR "${SWIFTLIB_SINGLE_SDK}" STREQUAL "WATCHOS")
set(SWIFTLIB_SINGLE_C_COMPILE_FLAGS "${SWIFTLIB_SINGLE_C_COMPILE_FLAGS}" "-fembed-bitcode")
set(SWIFTLIB_SINGLE_SWIFT_COMPILE_FLAGS "${SWIFTLIB_SINGLE_SWIFT_COMPILE_FLAGS}" "-embed-bitcode")
set(SWIFTLIB_SINGLE_LINK_FLAGS "${SWIFTLIB_SINGLE_LINK_FLAGS}" "-Xlinker -bitcode_bundle -Xlinker -bitcode_hide_symbols -Xlinker -lto_library -Xlinker ${LLVM_LIBRARY_DIR}/libLTO.dylib")
endif()
endif()
if (SWIFT_COMPILER_VERSION)
if ("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
set(SWIFTLIB_SINGLE_LINK_FLAGS "${SWIFTLIB_SINGLE_LINK_FLAGS}" "-Xlinker" "-current_version" "-Xlinker" "${SWIFT_COMPILER_VERSION}" "-Xlinker" "-compatibility_version" "-Xlinker" "1")
endif()
endif()
if(XCODE)
string(REGEX MATCHALL "/[^/]+" split_path ${CMAKE_CURRENT_SOURCE_DIR})
list(GET split_path -1 dir)
file(GLOB_RECURSE SWIFTLIB_SINGLE_HEADERS
${SWIFT_SOURCE_DIR}/include/swift${dir}/*.h
${SWIFT_SOURCE_DIR}/include/swift${dir}/*.def
${CMAKE_CURRENT_SOURCE_DIR}/*.def)
file(GLOB_RECURSE SWIFTLIB_SINGLE_TDS
${SWIFT_SOURCE_DIR}/include/swift${dir}/*.td)
source_group("TableGen descriptions" FILES ${SWIFTLIB_SINGLE_TDS})
set(SWIFTLIB_SINGLE_SOURCES ${SWIFTLIB_SINGLE_SOURCES} ${SWIFTLIB_SINGLE_HEADERS} ${SWIFTLIB_SINGLE_TDS})
endif()
if(MODULE)
set(libkind MODULE)
elseif(SWIFTLIB_SINGLE_SHARED)
set(libkind SHARED)
else()
set(libkind)
endif()
handle_gyb_sources(
gyb_dependency_targets
SWIFTLIB_SINGLE_SOURCES
"${SWIFTLIB_SINGLE_ARCHITECTURE}")
if (SWIFT_RUNTIME_ENABLE_DTRACE)
handle_dtrace_sources(
dtrace_dependency_targets
SWIFTLIB_SINGLE_SOURCES
dtrace_include_directories)
endif()
# Figure out whether and which API notes to create.
set(SWIFTLIB_SINGLE_API_NOTES)
if(SWIFTLIB_SINGLE_API_NOTES_NON_OVERLAY)
# Adopt all of the non-overlay API notes.
foreach(framework_name ${SWIFT_API_NOTES_INPUTS})
if (${framework_name} STREQUAL "WatchKit" AND
${SWIFTLIB_SINGLE_SDK} STREQUAL "OSX")
# HACK: don't build WatchKit API notes for OS X.
else()
if (NOT IS_DIRECTORY "${SWIFT_SOURCE_DIR}/stdlib/public/SDK/${framework_name}")
list(APPEND SWIFTLIB_SINGLE_API_NOTES "${framework_name}")
endif()
endif()
endforeach()
endif()
# Remove the "swift" prefix from the name to determine the module name.
string(REPLACE swift "" module_name "${name}")
list(FIND SWIFT_API_NOTES_INPUTS "${module_name}" overlay_index)
if(NOT ${overlay_index} EQUAL -1)
set(SWIFTLIB_SINGLE_API_NOTES "${module_name}")
endif()
# FIXME: don't actually depend on the libraries in SWIFTLIB_SINGLE_LINK_LIBRARIES,
# just any swiftmodule files that are associated with them.
handle_swift_sources(
swift_object_dependency_target
SWIFTLIB_SINGLE_SOURCES
SWIFTLIB_SINGLE_EXTERNAL_SOURCES ${name}
DEPENDS
${gyb_dependency_targets}
${SWIFTLIB_SINGLE_FILE_DEPENDS}
${SWIFTLIB_SINGLE_LINK_LIBRARIES}
${SWIFTLIB_SINGLE_INTERFACE_LINK_LIBRARIES}
SDK ${SWIFTLIB_SINGLE_SDK}
ARCHITECTURE ${SWIFTLIB_SINGLE_ARCHITECTURE}
API_NOTES ${SWIFTLIB_SINGLE_API_NOTES}
COMPILE_FLAGS ${SWIFTLIB_SINGLE_SWIFT_COMPILE_FLAGS}
${SWIFTLIB_SINGLE_IS_STDLIB_keyword}
${SWIFTLIB_SINGLE_IS_STDLIB_CORE_keyword}
${SWIFTLIB_SINGLE_IS_SDK_OVERLAY_keyword}
INSTALL_IN_COMPONENT "${SWIFTLIB_INSTALL_IN_COMPONENT}")
add_library("${target}" ${libkind}
${SWIFTLIB_SINGLE_SOURCES}
${SWIFTLIB_SINGLE_EXTERNAL_SOURCES})
if (dtrace_dependency_targets)
add_dependencies("${target}" ${dtrace_dependency_targets})
include_directories(${dtrace_include_directories})
endif()
llvm_update_compile_flags(${target})
set_output_directory(${target}
BINARY_DIR ${SWIFT_RUNTIME_OUTPUT_INTDIR}
LIBRARY_DIR ${SWIFT_LIBRARY_OUTPUT_INTDIR})
if(MODULE)
set_target_properties("${target}" PROPERTIES
PREFIX ""
SUFFIX ${LLVM_PLUGIN_EXT})
endif()
# Add Swift source files to the project.
source_group("Swift Sources" FILES ${SWIFTLIB_SINGLE_EXTERNAL_SOURCES})
# ...and for now, mark them as HEADER_FILE_ONLY, so that Xcode doesn't try
# to build them itself.
set_source_files_properties(${SWIFTLIB_SINGLE_EXTERNAL_SOURCES} PROPERTIES
HEADER_FILE_ONLY true)
if(SWIFTLIB_SINGLE_IS_STDLIB)
# Install runtime libraries to lib/swift instead of lib. This works around
# the fact that -isysroot prevents linking to libraries in the system
# /usr/lib if Swift is installed in /usr.
set_target_properties("${target}" PROPERTIES
LIBRARY_OUTPUT_DIRECTORY ${SWIFTLIB_DIR}/${SWIFTLIB_SINGLE_SUBDIR}
ARCHIVE_OUTPUT_DIRECTORY ${SWIFTLIB_DIR}/${SWIFTLIB_SINGLE_SUBDIR})
foreach(config ${CMAKE_CONFIGURATION_TYPES})
string(TOUPPER ${config} config_upper)
apply_xcode_substitutions("${config}" "${SWIFTLIB_DIR}" config_lib_dir)
set_target_properties(${target} PROPERTIES
LIBRARY_OUTPUT_DIRECTORY_${config_upper} ${config_lib_dir}/${SWIFTLIB_SINGLE_SUBDIR}
ARCHIVE_OUTPUT_DIRECTORY_${config_upper} ${config_lib_dir}/${SWIFTLIB_SINGLE_SUBDIR})
endforeach()
endif()
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
set(install_name_dir "@rpath")
if(SWIFTLIB_SINGLE_IS_STDLIB)
# Always use @rpath for XCTest.
if(NOT "${module_name}" STREQUAL "XCTest")
set(install_name_dir "${SWIFT_DARWIN_STDLIB_INSTALL_NAME_DIR}")
endif()
endif()
set_target_properties("${target}"
PROPERTIES
INSTALL_NAME_DIR "${install_name_dir}")
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
set_target_properties("${target}"
PROPERTIES
INSTALL_RPATH "$ORIGIN:/usr/lib/swift/linux")
endif()
set_target_properties("${target}" PROPERTIES BUILD_WITH_INSTALL_RPATH YES)
set_target_properties("${target}" PROPERTIES FOLDER "Swift libraries")
# Configure the static library target.
# Set compile and link flags for the non-static target.
# Do these LAST.
set(target_static)
if(SWIFTLIB_SINGLE_IS_STDLIB AND SWIFT_BUILD_STATIC_STDLIB)
set(target_static "${target}-static")
# We have already compiled Swift sources. Link everything into a static
# library.
add_library(${target_static} STATIC
${SWIFTLIB_SINGLE_SOURCES}
# Note: the dummy.c source file provides no definitions. However,
# it forces Xcode to properly link the static library.
${SWIFT_SOURCE_DIR}/cmake/dummy.c)
set_output_directory(${target_static}
BINARY_DIR ${SWIFT_RUNTIME_OUTPUT_INTDIR}
LIBRARY_DIR ${SWIFT_LIBRARY_OUTPUT_INTDIR})
foreach(config ${CMAKE_CONFIGURATION_TYPES})
string(TOUPPER ${config} config_upper)
apply_xcode_substitutions(
"${config}" "${SWIFTSTATICLIB_DIR}" config_lib_dir)
set_target_properties(${target_static} PROPERTIES
LIBRARY_OUTPUT_DIRECTORY_${config_upper} ${config_lib_dir}/${SWIFTLIB_SINGLE_SUBDIR}
ARCHIVE_OUTPUT_DIRECTORY_${config_upper} ${config_lib_dir}/${SWIFTLIB_SINGLE_SUBDIR})
endforeach()
set_target_properties(${target_static} PROPERTIES
LIBRARY_OUTPUT_DIRECTORY ${SWIFTSTATICLIB_DIR}/${SWIFTLIB_SINGLE_SUBDIR}
ARCHIVE_OUTPUT_DIRECTORY ${SWIFTSTATICLIB_DIR}/${SWIFTLIB_SINGLE_SUBDIR})
endif()
set_target_properties(${target}
PROPERTIES
# Library name (without the variant information)
OUTPUT_NAME ${name})
if(target_static)
set_target_properties(${target_static}
PROPERTIES
OUTPUT_NAME ${name})
endif()
# Don't build standard libraries by default. We will enable building
# standard libraries that the user requested; the rest can be built on-demand.
if(SWIFTLIB_SINGLE_IS_STDLIB)
foreach(t "${target}" ${target_static})
set_target_properties(${t} PROPERTIES EXCLUDE_FROM_ALL TRUE)
endforeach()
endif()
# Handle linking and dependencies.
add_dependencies_multiple_targets(
TARGETS "${target}" ${target_static}
DEPENDS
${SWIFTLIB_SINGLE_DEPENDS}
${gyb_dependency_targets}
"${swift_object_dependency_target}"
${LLVM_COMMON_DEPENDS})
# HACK: On some systems or build directory setups, CMake will not find static