Merge pull request #1007

1de812a cmake: merge libs via virtual object libraries (redfish)
a7498ad cmake: comply with the new policy CMP0026 (redfish)
This commit is contained in:
Riccardo Spagni 2016-09-01 11:21:38 +02:00
commit 9b579773d7
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3 changed files with 12 additions and 133 deletions

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@ -1,129 +0,0 @@
# 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(outlib lib1 lib2 ... libn) merges a number of static
# libs into a single static library
function(merge_static_libs outlib )
set(libs ${ARGV})
list(REMOVE_AT libs 0)
# Create a dummy file that the target will depend on
set(dummyfile ${CMAKE_CURRENT_BINARY_DIR}/${outlib}_dummy.c)
file(WRITE ${dummyfile} "const char * dummy = \"${dummyfile}\";")
add_library(${outlib} 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()
message(STATUS "will be merging ${libfiles}")
# 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(${outlib} 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 ${outlib} LOCATION)
add_custom_command(TARGET ${outlib} 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 ${outlib} LOCATION)
message(STATUS "outfile 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 ${objlistfile}.cmake)
# we only need to extract files once
if(${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/cmake.check_cache IS_NEWER_THAN ${objlistcmake})
#---------------------------------
FILE(WRITE ${objlistcmake}
"# Extract object files from the library
message(STATUS \"Extracting object files from ${lib}\")
EXECUTE_PROCESS(COMMAND ${CMAKE_AR} -x ${lib}
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 ${outlib} POST_BUILD
COMMAND ${CMAKE_COMMAND} -E echo "Running: ${CMAKE_AR} ru ${outfile} @${objlistfilerpath}"
COMMAND ${CMAKE_AR} ru "${outfile}" @"${objlistfilerpath}"
WORKING_DIRECTORY ${objdir})
endforeach()
add_custom_command(TARGET ${outlib} POST_BUILD
COMMAND ${CMAKE_COMMAND} -E echo "Running: ${CMAKE_RANLIB} ${outfile}"
COMMAND ${CMAKE_RANLIB} ${outfile})
endif()
file(WRITE ${dummyfile}.base "const char* ${outlib}_sublibs=\"${libs}\";")
add_custom_command(
OUTPUT ${dummyfile}
COMMAND ${CMAKE_COMMAND} -E copy ${dummyfile}.base ${dummyfile}
DEPENDS ${libs} ${extrafiles})
endfunction()

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@ -82,8 +82,13 @@ function (bitmonero_add_library name)
FILES
${ARGN})
add_library("${name}"
${ARGN})
# Define a ("virtual") object library and an actual library that links those
# objects together. The virtual libraries can be arbitrarily combined to link
# any subset of objects into one library archive. This is used for releasing
# libwallet, which combines multiple components.
set(objlib obj_${name})
add_library(${objlib} OBJECT ${ARGN})
add_library("${name}" STATIC $<TARGET_OBJECTS:${objlib}>)
set_property(TARGET "${name}"
PROPERTY
FOLDER "libs")

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@ -27,7 +27,6 @@
# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# include (${PROJECT_SOURCE_DIR}/cmake/libutils.cmake)
include (${PROJECT_SOURCE_DIR}/cmake/MergeStaticLibs.cmake)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
@ -76,7 +75,11 @@ target_link_libraries(wallet
${EXTRA_LIBRARIES})
set(libs_to_merge wallet cryptonote_core mnemonics common crypto)
merge_static_libs(wallet_merged "${libs_to_merge}")
foreach(lib ${libs_to_merge})
list(APPEND objlibs $<TARGET_OBJECTS:obj_${lib}>) # matches naming convention in src/CMakeLists.txtA
endforeach()
add_library(wallet_merged STATIC ${objlibs})
install(TARGETS wallet_merged
ARCHIVE DESTINATION lib)