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Diffstat (limited to 'cmake/MergeStaticLibs.cmake')
| -rw-r--r-- | cmake/MergeStaticLibs.cmake | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/cmake/MergeStaticLibs.cmake b/cmake/MergeStaticLibs.cmake new file mode 100644 index 0000000..4fa5dad --- /dev/null +++ b/cmake/MergeStaticLibs.cmake @@ -0,0 +1,151 @@ + +# Copyright (C) 2012 Modelon AB + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the BSD style license. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# FMILIB_License.txt file for more details. + +# You should have received a copy of the FMILIB_License.txt file +# along with this program. If not, contact Modelon AB <http://www.modelon.com>. + +# Merge_static_libs(output_library lib1 lib2 ... libn) merges a number of static +# libs into a single static library +function(merge_static_libs output_library) + set(output_target "${output_library}") + string(REGEX REPLACE "-" "_" output_library ${output_library}) + set(libs ${ARGV}) + list(REMOVE_AT libs 0) + + # Create a dummy file that the target will depend on + set(dummyfile ${CMAKE_CURRENT_BINARY_DIR}/${output_library}_dummy.c) + file(WRITE ${dummyfile} "const char * dummy = \"${dummyfile}\";") + + add_library(${output_target} STATIC ${dummyfile}) + + if("${CMAKE_CFG_INTDIR}" STREQUAL ".") + set(multiconfig FALSE) + else() + set(multiconfig TRUE) + endif() + + # First get the file names of the libraries to be merged + foreach(lib ${libs}) + get_target_property(libtype ${lib} TYPE) + if(NOT libtype STREQUAL "STATIC_LIBRARY") + message(FATAL_ERROR "Merge_static_libs can only process static libraries") + endif() + if(multiconfig) + foreach(CONFIG_TYPE ${CMAKE_CONFIGURATION_TYPES}) + get_target_property("libfile_${CONFIG_TYPE}" ${lib} "LOCATION_${CONFIG_TYPE}") + list(APPEND libfiles_${CONFIG_TYPE} ${libfile_${CONFIG_TYPE}}) + endforeach() + else() + get_target_property(libfile ${lib} LOCATION) + list(APPEND libfiles "${libfile}") + endif(multiconfig) + endforeach() + + # Just to be sure: cleanup from duplicates + if(multiconfig) + foreach(CONFIG_TYPE ${CMAKE_CONFIGURATION_TYPES}) + list(REMOVE_DUPLICATES libfiles_${CONFIG_TYPE}) + set(libfiles ${libfiles} ${libfiles_${CONFIG_TYPE}}) + endforeach() + endif() + list(REMOVE_DUPLICATES libfiles) + + # Now the easy part for MSVC and for MAC + if(MSVC) + # lib.exe does the merging of libraries just need to conver the list into string + foreach(CONFIG_TYPE ${CMAKE_CONFIGURATION_TYPES}) + set(flags "") + foreach(lib ${libfiles_${CONFIG_TYPE}}) + set(flags "${flags} ${lib}") + endforeach() + string(TOUPPER "STATIC_LIBRARY_FLAGS_${CONFIG_TYPE}" PROPNAME) + set_target_properties(${output_target} PROPERTIES ${PROPNAME} "${flags}") + endforeach() + + elseif(APPLE) + # Use OSX's libtool to merge archives + if(multiconfig) + message(FATAL_ERROR "Multiple configurations are not supported") + endif() + get_target_property(outfile ${output_target} LOCATION) + add_custom_command(TARGET ${output_target} POST_BUILD + COMMAND rm ${outfile} + COMMAND /usr/bin/libtool -static -o ${outfile} + ${libfiles} + ) + else() + # general UNIX - need to "ar -x" and then "ar -ru" + if(multiconfig) + message(FATAL_ERROR "Multiple configurations are not supported") + endif() + get_target_property(outfile ${output_target} LOCATION) + message(STATUS "output file location is ${outfile}") + foreach(lib ${libfiles}) + # objlistfile will contain the list of object files for the library + set(objlistfile ${lib}.objlist) + set(objdir ${lib}.objdir) + set(objlistcmake ${objlistfile}.cmake) + get_filename_component(libname ${lib} NAME_WE) + + if(${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/cmake.check_cache IS_NEWER_THAN ${objlistcmake}) + + file(WRITE ${objlistcmake} " + # delete previous object files + message(STATUS \"Removing previous object files from ${lib}\") + EXECUTE_PROCESS(COMMAND ls . + WORKING_DIRECTORY ${objdir} + COMMAND xargs -I {} rm {} + WORKING_DIRECTORY ${objdir}) + # Extract object files from the library + message(STATUS \"Extracting object files from ${lib}\") + EXECUTE_PROCESS(COMMAND ${CMAKE_AR} -x ${lib} + WORKING_DIRECTORY ${objdir}) + # Prefixing object files to avoid conflicts + message(STATUS \"Prefixing object files to avoid conflicts\") + EXECUTE_PROCESS(COMMAND ls . + WORKING_DIRECTORY ${objdir} + COMMAND xargs -I {} mv {} ${libname}_{} + WORKING_DIRECTORY ${objdir}) + # save the list of object files + EXECUTE_PROCESS(COMMAND ls . + OUTPUT_FILE ${objlistfile} + WORKING_DIRECTORY ${objdir}) + ") + + file(MAKE_DIRECTORY ${objdir}) + + add_custom_command( + OUTPUT ${objlistfile} + COMMAND ${CMAKE_COMMAND} -P ${objlistcmake} + DEPENDS ${lib}) + + endif() + + list(APPEND extrafiles "${objlistfile}") + # relative path is needed by ar under MSYS + file(RELATIVE_PATH objlistfilerpath ${objdir} ${objlistfile}) + add_custom_command(TARGET ${output_target} POST_BUILD + COMMAND ${CMAKE_COMMAND} -E echo "Running: ${CMAKE_AR} ru ${outfile} @${objlistfilerpath}" + COMMAND ${CMAKE_AR} ru "${outfile}" @"${objlistfilerpath}" + #COMMAND ld -r -static -o "${outfile}" --whole-archive @"${objlistfilerpath}" + WORKING_DIRECTORY ${objdir}) + endforeach() + add_custom_command(TARGET ${output_target} POST_BUILD + COMMAND ${CMAKE_COMMAND} -E echo "Running: ${CMAKE_RANLIB} ${outfile}" + COMMAND ${CMAKE_RANLIB} ${outfile}) + endif() + file(WRITE ${dummyfile}.base "const char* ${output_library}_sublibs=\"${libs}\";") + add_custom_command( + OUTPUT ${dummyfile} + COMMAND ${CMAKE_COMMAND} -E copy ${dummyfile}.base ${dummyfile} + DEPENDS ${libs} ${extrafiles}) + +endfunction() |