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function(core_link_library lib wraplib)
if(CMAKE_GENERATOR MATCHES "Unix Makefiles" OR CMAKE_GENERATOR STREQUAL Ninja)
set(wrapper_obj cores/dll-loader/exports/CMakeFiles/wrapper.dir/wrapper.c.o)
elseif(CMAKE_GENERATOR MATCHES "Xcode")
# CURRENT_VARIANT is an Xcode env var
# CPU is a project cmake var
# Xcode new build system (CMAKE_XCODE_BUILD_SYSTEM=12) requires the env var CURRENT_VARIANT to be passed WITHOUT brackets
# Xcode Legacy build system (CMAKE_XCODE_BUILD_SYSTEM=1) requires the env var CURRENT_VARIANT to be passed WITH brackets
if(CMAKE_XCODE_BUILD_SYSTEM STREQUAL 12)
set(wrapper_obj cores/dll-loader/exports/kodi.build/$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)/wrapper.build/Objects-$CURRENT_VARIANT/${CPU}/wrapper.o)
else()
set(wrapper_obj cores/dll-loader/exports/kodi.build/$(CONFIGURATION)$(EFFECTIVE_PLATFORM_NAME)/wrapper.build/Objects-$(CURRENT_VARIANT)/${CPU}/wrapper.o)
endif()
else()
message(FATAL_ERROR "Unsupported generator in core_link_library")
endif()
set(export -bundle -undefined dynamic_lookup
-Wl,-alias_list,${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/cores/dll-loader/exports/wrapper.def
${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/${wrapper_obj})
set(extension ${CMAKE_SHARED_MODULE_SUFFIX})
set(check_arg "")
if(TARGET ${lib})
set(target ${lib})
set(link_lib $<TARGET_FILE:${lib}>)
set(check_arg ${ARGV2})
set(data_arg ${ARGV3})
else()
set(target ${ARGV2})
set(link_lib ${lib})
set(check_arg ${ARGV3})
set(data_arg ${ARGV4})
endif()
if(check_arg STREQUAL export)
set(export ${export}
-Wl,--version-script=${ARGV3})
elseif(check_arg STREQUAL extras)
foreach(arg ${data_arg})
list(APPEND export ${arg})
endforeach()
elseif(check_arg STREQUAL archives)
set(extra_libs ${data_arg})
endif()
get_filename_component(dir ${wraplib} DIRECTORY)
# We can't simply pass the linker flags to the args section of the custom command
# because cmake will add quotes around it (and the linker will fail due to those).
# We need to do this handstand first ...
string(REPLACE " " ";" CUSTOM_COMMAND_ARGS_LDFLAGS ${CMAKE_SHARED_LINKER_FLAGS})
add_custom_command(OUTPUT ${wraplib}-${ARCH}${extension}
COMMAND ${CMAKE_COMMAND} -E make_directory ${dir}
COMMAND ${CMAKE_C_COMPILER}
ARGS ${CUSTOM_COMMAND_ARGS_LDFLAGS} ${export} -Wl,-force_load ${link_lib} ${extra_libs}
-o ${CMAKE_BINARY_DIR}/${wraplib}-${ARCH}${extension}
DEPENDS ${target} wrapper.def wrapper)
get_filename_component(libname ${wraplib} NAME_WE)
add_custom_target(wrap_${libname} ALL DEPENDS ${wraplib}-${ARCH}${extension})
set_target_properties(wrap_${libname} PROPERTIES FOLDER lib/wrapped)
add_dependencies(${APP_NAME_LC}-libraries wrap_${libname})
set(LIBRARY_FILES ${LIBRARY_FILES} ${CMAKE_BINARY_DIR}/${wraplib}-${ARCH}${extension} CACHE STRING "" FORCE)
endfunction()
function(find_soname lib)
cmake_parse_arguments(arg "REQUIRED" "" "" ${ARGN})
string(TOLOWER ${lib} liblow)
if(${lib}_LDFLAGS)
set(link_lib "${${lib}_LDFLAGS}")
else()
set(link_lib "${${lib}_LIBRARIES}")
endif()
execute_process(COMMAND ${CMAKE_C_COMPILER} -print-search-dirs
COMMAND fgrep libraries:
COMMAND sed "s/[^=]*=\\(.*\\)/\\1/"
COMMAND sed "s/:/ /g"
ERROR_QUIET
OUTPUT_VARIABLE cc_lib_path
OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND echo ${link_lib}
COMMAND sed "s/-L[ ]*//g"
COMMAND sed "s/-l[^ ]*//g"
ERROR_QUIET
OUTPUT_VARIABLE env_lib_path
OUTPUT_STRIP_TRAILING_WHITESPACE)
foreach(path ${cc_lib_path} ${env_lib_path})
if(IS_DIRECTORY ${path})
execute_process(COMMAND ls -- ${path}/lib${liblow}.dylib
ERROR_QUIET
OUTPUT_VARIABLE lib_file
OUTPUT_STRIP_TRAILING_WHITESPACE)
else()
set(lib_file ${path})
endif()
if(lib_file)
# we want the path/name that is embedded in the dylib
execute_process(COMMAND otool -L ${lib_file}
COMMAND grep -v lib${liblow}.dylib
COMMAND grep ${liblow}
COMMAND awk "{V=1; print $V}"
ERROR_QUIET
OUTPUT_VARIABLE filename
OUTPUT_STRIP_TRAILING_WHITESPACE)
get_filename_component(${lib}_SONAME "${filename}" NAME)
if(VERBOSE)
message(STATUS "${lib} soname: ${${lib}_SONAME}")
endif()
endif()
endforeach()
if(arg_REQUIRED AND NOT ${lib}_SONAME)
message(FATAL_ERROR "Could not find dynamically loadable library ${lib}")
endif()
set(${lib}_SONAME ${${lib}_SONAME} PARENT_SCOPE)
endfunction()
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