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qt5base-lts/cmake/QtExecutableHelpers.cmake
Alexey Edelev db705d0794 Fix multi-thread GNU make build 
Add the timestamp file creation for configure-time executables.
GNU make treats the custom command artifacts as 'dirty' when one of
the expected outputs is missing. It displays the following disclaimer

  Deleting primary custom command output ... because another output
  ... does not exist.

which leads to the configure-time executable rebuild. The removal
and rebuild is not in sync with the dependency lookup for other
targets(thanks to GNU make) so targets that depend on the
configure-time executables simply miss the dependency at build time.
This happens to syncqt and '_sync_headers' targets. So creating
the timestamp file at configure time indicates to GNU make that
there is no need of removing the syncqt executable and the build
process doesn't fail because of missing dependency.

Fixes: QTBUG-112018
Fixes: QTBUG-111163
Pick-to: 6.5
Change-Id: I6c1e8cae522104cf50d0376fa2b5653a6770f9ca
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
2023-04-05 01:04:28 +02:00

494 lines
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CMake
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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: BSD-3-Clause
# This function creates a CMake target for a generic console or GUI binary.
# Please consider to use a more specific version target like the one created
# by qt_add_test or qt_add_tool below.
# One-value Arguments:
# CORE_LIBRARY
# The argument accepts 'Bootstrap' or 'None' values. If the argument value is set to
# 'Bootstrap' the Qt::Bootstrap library is linked to the executable instead of Qt::Core.
# The 'None' value points that core library is not necessary and avoids linking neither
# Qt::Core or Qt::Bootstrap libraries. Otherwise the Qt::Core library will be publicly
# linked to the executable target by default.
function(qt_internal_add_executable name)
cmake_parse_arguments(PARSE_ARGV 1 arg
"${__qt_internal_add_executable_optional_args}"
"${__qt_internal_add_executable_single_args}"
"${__qt_internal_add_executable_multi_args}")
_qt_internal_validate_all_args_are_parsed(arg)
if ("x${arg_OUTPUT_DIRECTORY}" STREQUAL "x")
set(arg_OUTPUT_DIRECTORY "${QT_BUILD_DIR}/${INSTALL_BINDIR}")
endif()
get_filename_component(arg_OUTPUT_DIRECTORY "${arg_OUTPUT_DIRECTORY}"
ABSOLUTE BASE_DIR "${QT_BUILD_DIR}")
if ("x${arg_INSTALL_DIRECTORY}" STREQUAL "x")
set(arg_INSTALL_DIRECTORY "${INSTALL_BINDIR}")
endif()
_qt_internal_create_executable(${name})
if(ANDROID)
_qt_internal_android_executable_finalizer(${name})
endif()
if(arg_QT_APP AND QT_FEATURE_debug_and_release AND CMAKE_VERSION VERSION_GREATER_EQUAL "3.19.0")
set_property(TARGET "${name}"
PROPERTY EXCLUDE_FROM_ALL "$<NOT:$<CONFIG:${QT_MULTI_CONFIG_FIRST_CONFIG}>>")
endif()
if (arg_VERSION)
if(arg_VERSION MATCHES "[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+")
# nothing to do
elseif(arg_VERSION MATCHES "[0-9]+\\.[0-9]+\\.[0-9]+")
set(arg_VERSION "${arg_VERSION}.0")
elseif(arg_VERSION MATCHES "[0-9]+\\.[0-9]+")
set(arg_VERSION "${arg_VERSION}.0.0")
elseif (arg_VERSION MATCHES "[0-9]+")
set(arg_VERSION "${arg_VERSION}.0.0.0")
else()
message(FATAL_ERROR "Invalid version format")
endif()
endif()
if(arg_DELAY_TARGET_INFO)
# Delay the setting of target info properties if requested. Needed for scope finalization
# of Qt apps.
set_target_properties("${name}" PROPERTIES
QT_DELAYED_TARGET_VERSION "${arg_VERSION}"
QT_DELAYED_TARGET_PRODUCT "${arg_TARGET_PRODUCT}"
QT_DELAYED_TARGET_DESCRIPTION "${arg_TARGET_DESCRIPTION}"
QT_DELAYED_TARGET_COMPANY "${arg_TARGET_COMPANY}"
QT_DELAYED_TARGET_COPYRIGHT "${arg_TARGET_COPYRIGHT}"
)
else()
if(NOT arg_TARGET_DESCRIPTION)
set(arg_TARGET_DESCRIPTION "Qt ${name}")
endif()
qt_set_target_info_properties(${name} ${ARGN}
TARGET_DESCRIPTION ${arg_TARGET_DESCRIPTION}
TARGET_VERSION ${arg_VERSION})
endif()
if (WIN32 AND NOT arg_DELAY_RC)
_qt_internal_generate_win32_rc_file(${name})
endif()
qt_set_common_target_properties(${name})
qt_internal_add_repo_local_defines(${name})
if(ANDROID)
# The above call to qt_set_common_target_properties() sets the symbol
# visibility to hidden, but for Android, we need main() to not be hidden
# because it has to be loadable at runtime using dlopen().
set_property(TARGET ${name} PROPERTY C_VISIBILITY_PRESET default)
set_property(TARGET ${name} PROPERTY CXX_VISIBILITY_PRESET default)
endif()
qt_autogen_tools_initial_setup(${name})
qt_skip_warnings_are_errors_when_repo_unclean("${name}")
set(extra_libraries "")
if(arg_CORE_LIBRARY STREQUAL "Bootstrap")
list(APPEND extra_libraries ${QT_CMAKE_EXPORT_NAMESPACE}::Bootstrap)
elseif(NOT arg_CORE_LIBRARY STREQUAL "None")
list(APPEND extra_libraries ${QT_CMAKE_EXPORT_NAMESPACE}::Core)
endif()
set(private_includes
"${CMAKE_CURRENT_SOURCE_DIR}"
"${CMAKE_CURRENT_BINARY_DIR}"
${arg_INCLUDE_DIRECTORIES}
)
if(arg_PUBLIC_LIBRARIES)
message(WARNING
"qt_internal_add_executable's PUBLIC_LIBRARIES option is deprecated, and will be "
"removed in a future Qt version. Use the LIBRARIES option instead.")
endif()
if(arg_NO_UNITY_BUILD)
set(arg_NO_UNITY_BUILD "NO_UNITY_BUILD")
else()
set(arg_NO_UNITY_BUILD "")
endif()
qt_internal_extend_target("${name}"
${arg_NO_UNITY_BUILD}
SOURCES ${arg_SOURCES}
NO_UNITY_BUILD_SOURCES ${arg_NO_UNITY_BUILD_SOURCES}
INCLUDE_DIRECTORIES ${private_includes}
DEFINES ${arg_DEFINES}
LIBRARIES
${arg_LIBRARIES}
${arg_PUBLIC_LIBRARIES}
Qt::PlatformCommonInternal
${extra_libraries}
DBUS_ADAPTOR_SOURCES ${arg_DBUS_ADAPTOR_SOURCES}
DBUS_ADAPTOR_FLAGS ${arg_DBUS_ADAPTOR_FLAGS}
DBUS_INTERFACE_SOURCES ${arg_DBUS_INTERFACE_SOURCES}
DBUS_INTERFACE_FLAGS ${arg_DBUS_INTERFACE_FLAGS}
COMPILE_OPTIONS ${arg_COMPILE_OPTIONS}
LINK_OPTIONS ${arg_LINK_OPTIONS}
MOC_OPTIONS ${arg_MOC_OPTIONS}
ENABLE_AUTOGEN_TOOLS ${arg_ENABLE_AUTOGEN_TOOLS}
DISABLE_AUTOGEN_TOOLS ${arg_DISABLE_AUTOGEN_TOOLS}
)
set_target_properties("${name}" PROPERTIES
RUNTIME_OUTPUT_DIRECTORY "${arg_OUTPUT_DIRECTORY}"
LIBRARY_OUTPUT_DIRECTORY "${arg_OUTPUT_DIRECTORY}"
WIN32_EXECUTABLE "${arg_GUI}"
MACOSX_BUNDLE "${arg_GUI}"
)
if(WASM)
# WASM unconditionally sets DISABLE_EXCEPTION_CATCHING=1
qt_internal_set_exceptions_flags("${name}" NO_EXCEPTIONS)
else()
qt_internal_set_exceptions_flags("${name}" ${arg_EXCEPTIONS})
endif()
if(WASM)
qt_internal_wasm_add_finalizers("${name}")
endif()
# Check if target needs to be excluded from all target. Also affects qt_install.
# Set by qt_exclude_tool_directories_from_default_target.
set(exclude_from_all FALSE)
if(__qt_exclude_tool_directories)
foreach(absolute_dir ${__qt_exclude_tool_directories})
string(FIND "${CMAKE_CURRENT_SOURCE_DIR}" "${absolute_dir}" dir_starting_pos)
if(dir_starting_pos EQUAL 0)
set(exclude_from_all TRUE)
set_target_properties("${name}" PROPERTIES EXCLUDE_FROM_ALL TRUE)
break()
endif()
endforeach()
endif()
if(NOT arg_NO_INSTALL)
set(additional_install_args "")
if(exclude_from_all)
list(APPEND additional_install_args EXCLUDE_FROM_ALL COMPONENT "ExcludedExecutables")
endif()
qt_get_cmake_configurations(cmake_configs)
foreach(cmake_config ${cmake_configs})
qt_get_install_target_default_args(
OUT_VAR install_targets_default_args
CMAKE_CONFIG "${cmake_config}"
ALL_CMAKE_CONFIGS "${cmake_configs}"
RUNTIME "${arg_INSTALL_DIRECTORY}"
LIBRARY "${arg_INSTALL_DIRECTORY}"
BUNDLE "${arg_INSTALL_DIRECTORY}")
# Make installation optional for targets that are not built by default in this config
if(NOT exclude_from_all AND arg_QT_APP AND QT_FEATURE_debug_and_release
AND NOT (cmake_config STREQUAL QT_MULTI_CONFIG_FIRST_CONFIG))
set(install_optional_arg "OPTIONAL")
else()
unset(install_optional_arg)
endif()
qt_install(TARGETS "${name}"
${additional_install_args} # Needs to be before the DESTINATIONS.
${install_optional_arg}
CONFIGURATIONS ${cmake_config}
${install_targets_default_args})
endforeach()
if(NOT exclude_from_all AND arg_QT_APP AND QT_FEATURE_debug_and_release)
set(separate_debug_info_executable_arg "QT_EXECUTABLE")
else()
unset(separate_debug_info_executable_arg)
endif()
qt_enable_separate_debug_info(${name} "${arg_INSTALL_DIRECTORY}"
${separate_debug_info_executable_arg}
ADDITIONAL_INSTALL_ARGS ${additional_install_args})
qt_internal_install_pdb_files(${name} "${arg_INSTALL_DIRECTORY}")
endif()
# If linking against Gui, make sure to also build the default QPA plugin.
# This makes the experience of an initial Qt configuration to build and run one single
# test / executable nicer.
get_target_property(linked_libs "${name}" LINK_LIBRARIES)
if("Qt::Gui" IN_LIST linked_libs AND TARGET qpa_default_plugins)
add_dependencies("${name}" qpa_default_plugins)
endif()
# For static plugins, we need to explicitly link to plugins we want to be
# loaded with the executable. User projects get that automatically, but
# for tools built as part of Qt, we can't use that mechanism because it
# would pollute the targets we export as part of an install and lead to
# circular dependencies. The logic here is a simpler equivalent of the
# more dynamic logic in QtPlugins.cmake.in, but restricted to only
# adding plugins that are provided by the same module as the module
# libraries the executable links to.
set(libs
${arg_LIBRARIES}
${arg_PUBLIC_LIBRARIES}
${extra_libraries}
Qt::PlatformCommonInternal
)
set(deduped_libs "")
foreach(lib IN LISTS libs)
if(NOT TARGET "${lib}")
continue()
endif()
# Normalize module by stripping any leading "Qt::", because properties are set on the
# versioned target (either Gui when building the module, or Qt6::Gui when it's
# imported).
if(lib MATCHES "Qt::([-_A-Za-z0-9]+)")
set(new_lib "${QT_CMAKE_EXPORT_NAMESPACE}::${CMAKE_MATCH_1}")
if(TARGET "${new_lib}")
set(lib "${new_lib}")
endif()
endif()
# Unalias the target.
get_target_property(aliased_target ${lib} ALIASED_TARGET)
if(aliased_target)
set(lib ${aliased_target})
endif()
list(APPEND deduped_libs "${lib}")
endforeach()
list(REMOVE_DUPLICATES deduped_libs)
foreach(lib IN LISTS deduped_libs)
string(MAKE_C_IDENTIFIER "${name}_plugin_imports_${lib}" out_file)
string(APPEND out_file .cpp)
# Initialize plugins that are built in the same repository as the Qt module 'lib'.
set(class_names_regular
"$<GENEX_EVAL:$<TARGET_PROPERTY:${lib},_qt_initial_repo_plugin_class_names>>")
# Initialize plugins that are built in the current Qt repository, but are associated
# with a Qt module from a different repository (qtsvg's QSvgPlugin associated with
# qtbase's QtGui).
string(MAKE_C_IDENTIFIER "${PROJECT_NAME}" current_project_name)
set(prop_prefix "_qt_repo_${current_project_name}")
set(class_names_current_project
"$<GENEX_EVAL:$<TARGET_PROPERTY:${lib},${prop_prefix}_plugin_class_names>>")
# Only add separator if first list is not empty, so we don't trigger the file generation
# when all lists are empty.
set(class_names_separator "$<$<NOT:$<STREQUAL:${class_names_regular},>>:;>" )
set(class_names
"${class_names_regular}${class_names_separator}${class_names_current_project}")
set(out_file_path "${CMAKE_CURRENT_BINARY_DIR}/${out_file}")
file(GENERATE OUTPUT "${out_file_path}" CONTENT
"// This file is auto-generated. Do not edit.
#include <QtPlugin>
Q_IMPORT_PLUGIN($<JOIN:${class_names},)\nQ_IMPORT_PLUGIN(>)
"
CONDITION "$<NOT:$<STREQUAL:${class_names},>>"
)
# CMake versions earlier than 3.18.0 can't find the generated file for some reason,
# failing at generation phase.
# Explicitly marking the file as GENERATED fixes the issue.
set_source_files_properties("${out_file_path}" PROPERTIES GENERATED TRUE)
target_sources(${name} PRIVATE
"$<$<NOT:$<STREQUAL:${class_names},>>:${out_file_path}>"
)
target_link_libraries(${name} PRIVATE
"$<TARGET_PROPERTY:${lib},_qt_initial_repo_plugins>"
"$<TARGET_PROPERTY:${lib},${prop_prefix}_plugins>")
endforeach()
endfunction()
# This function compiles the target at configure time the very first time and creates the custom
# ${target}_build that re-runs compilation at build time if necessary. The resulting executable is
# imported under the provided target name. This function should only be used to compile tiny
# executables with system dependencies only.
# One-value Arguments:
# CMAKELISTS_TEMPLATE
# The CMakeLists.txt templated that is used to configure the project
# for an executable. By default the predefined template from the Qt installation is used.
# INSTALL_DIRECTORY
# installation directory of the executable. Ignored if NO_INSTALL is set.
# OUTPUT_NAME
# the output name of an executable
# CONFIG
# the name of configuration that tool needs to be build with.
# Multi-value Arguments:
# PACKAGES
# list of system packages are required to successfully build the project.
# INCLUDES
# list of include directories are required to successfully build the project.
# DEFINES
# list of definitions are required to successfully build the project.
# COMPILE_OPTIONS
# list of compiler options are required to successfully build the project.
# LINK_OPTIONS
# list of linker options are required to successfully build the project.
# SOURCES
# list of project sources.
# CMAKE_FLAGS
# specify flags of the form -DVAR:TYPE=VALUE to be passed to the cmake command-line used to
# drive the test build.
# Options:
# WIN32
# reflects the corresponding add_executable argument.
# MACOSX_BUNDLE
# reflects the corresponding add_executable argument.
# NO_INSTALL
# avoids installing the tool.
function(qt_internal_add_configure_time_executable target)
set(one_value_args
CMAKELISTS_TEMPLATE
INSTALL_DIRECTORY
OUTPUT_NAME
CONFIG
)
set(multi_value_args
PACKAGES
INCLUDES
DEFINES
COMPILE_OPTIONS
LINK_OPTIONS
SOURCES
CMAKE_FLAGS
)
set(option_args WIN32 MACOSX_BUNDLE NO_INSTALL)
cmake_parse_arguments(PARSE_ARGV 1 arg
"${option_args}" "${one_value_args}" "${multi_value_args}")
set(target_binary_dir "${CMAKE_CURRENT_BINARY_DIR}/configure_time_bins")
if(arg_CONFIG)
set(CMAKE_TRY_COMPILE_CONFIGURATION "${arg_CONFIG}")
endif()
get_cmake_property(is_multi_config GENERATOR_IS_MULTI_CONFIG)
if(is_multi_config AND CMAKE_TRY_COMPILE_CONFIGURATION)
set(configuration_path "${CMAKE_TRY_COMPILE_CONFIGURATION}/")
set(config_build_arg "--config" "${CMAKE_TRY_COMPILE_CONFIGURATION}")
endif()
set(configure_time_target "${target}")
if(arg_OUTPUT_NAME)
set(configure_time_target "${arg_OUTPUT_NAME}")
endif()
set(target_binary "${configure_time_target}${CMAKE_EXECUTABLE_SUFFIX}")
set(install_dir "${INSTALL_BINDIR}")
if(arg_INSTALL_DIRECTORY)
set(install_dir "${arg_INSTALL_DIRECTORY}")
endif()
set(output_directory "${QT_BUILD_DIR}/${install_dir}")
set(target_binary_path
"${output_directory}/${configuration_path}${target_binary}")
get_filename_component(target_binary_path "${target_binary_path}" ABSOLUTE)
if(NOT DEFINED arg_SOURCES)
message(FATAL_ERROR "No SOURCES given to target: ${target}")
endif()
set(sources "${arg_SOURCES}")
# Timestamp file is required because CMake ignores 'add_custom_command' if we use only the
# binary file as the OUTPUT.
set(timestamp_file "${target_binary_dir}/${target_binary}_timestamp")
add_custom_command(OUTPUT "${target_binary_path}" "${timestamp_file}"
COMMAND
${CMAKE_COMMAND} --build "${target_binary_dir}" ${config_build_arg}
COMMAND
${CMAKE_COMMAND} -E touch "${timestamp_file}"
DEPENDS
${sources}
COMMENT
"Compiling ${target}"
VERBATIM
)
add_custom_target(${target}_build ALL
DEPENDS
"${target_binary_path}"
"${timestamp_file}"
)
set(should_build_at_configure_time TRUE)
if(EXISTS "${target_binary_path}")
set(last_ts 0)
foreach(source IN LISTS sources)
file(TIMESTAMP "${source}" ts "%s")
if(${ts} GREATER ${last_ts})
set(last_ts ${ts})
endif()
endforeach()
file(TIMESTAMP "${target_binary_path}" ts "%s")
if(${ts} GREATER_EQUAL ${last_ts})
set(should_build_at_configure_time FALSE)
endif()
endif()
if(should_build_at_configure_time)
foreach(arg IN LISTS multi_value_args)
string(TOLOWER "${arg}" template_arg_name)
set(${template_arg_name} "")
if(DEFINED arg_${arg})
set(${template_arg_name} "${arg_${arg}}")
endif()
endforeach()
foreach(arg IN LISTS option_args)
string(TOLOWER "${arg}" template_arg_name)
set(${template_arg_name} "")
if(arg_${arg})
set(${template_arg_name} "${arg}")
endif()
endforeach()
file(MAKE_DIRECTORY "${target_binary_dir}")
set(template "${QT_CMAKE_DIR}/QtConfigureTimeExecutableCMakeLists.txt.in")
if(DEFINED arg_CMAKELISTS_TEMPLATE)
set(template "${arg_CMAKELISTS_TEMPLATE}")
endif()
set(cmake_flags_arg)
if(arg_CMAKE_FLAGS)
set(cmake_flags_arg CMAKE_FLAGS "${arg_CMAKE_FLAGS}")
endif()
configure_file("${template}" "${target_binary_dir}/CMakeLists.txt" @ONLY)
try_compile(result
"${target_binary_dir}"
"${target_binary_dir}"
${target}
${cmake_flags_arg}
OUTPUT_VARIABLE try_compile_output
)
file(WRITE "${timestamp_file}" "")
if(NOT result)
message(FATAL_ERROR "Unable to build ${target}: ${try_compile_output}")
endif()
endif()
add_executable(${target} IMPORTED GLOBAL)
add_executable(${QT_CMAKE_EXPORT_NAMESPACE}::${target} ALIAS ${target})
set_target_properties(${target} PROPERTIES
_qt_internal_configure_time_target TRUE
IMPORTED_LOCATION "${target_binary_path}")
if(NOT arg_NO_INSTALL)
set_target_properties(${target} PROPERTIES
_qt_internal_configure_time_target_install_location
"${install_dir}/${target_binary}"
)
qt_path_join(target_install_dir ${QT_INSTALL_DIR} ${install_dir})
qt_install(PROGRAMS "${target_binary_path}" DESTINATION "${target_install_dir}")
endif()
endfunction()
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