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3941555d93
Linkers always use object files explicitly specified on the command line regardless of where they appear. Move them to the front of the list of linked libraries in so that symbols required by the object files can be resolved by any library. Issue: #22149
80 lines
3.3 KiB
CMake
80 lines
3.3 KiB
CMake
cmake_minimum_required(VERSION 2.8.12)
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project(ObjectLibrary C)
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add_subdirectory(A)
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add_subdirectory(B)
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add_library(Cstatic STATIC c.c $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:B>)
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add_executable(UseCstatic main.c)
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target_link_libraries(UseCstatic Cstatic)
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add_library(Cshared SHARED c.c $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:Bexport>)
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add_executable(UseCshared main.c)
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set_property(TARGET UseCshared PROPERTY COMPILE_DEFINITIONS SHARED_C)
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target_link_libraries(UseCshared Cshared)
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add_custom_command(TARGET UseCshared POST_BUILD COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/A/a.cmake)
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add_executable(UseCinternal main.c c.c $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:B>)
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if("${CMAKE_GENERATOR}" MATCHES "Xcode")
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# Xcode does not seem to support targets without sources.
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set(dummy dummy.c)
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endif()
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# Test static library without its own sources.
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add_library(ABstatic STATIC ${dummy} $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:B>)
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target_include_directories(ABstatic PUBLIC $<TARGET_PROPERTY:B,INTERFACE_INCLUDE_DIRECTORIES>)
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target_compile_definitions(ABstatic PUBLIC $<TARGET_PROPERTY:B,INTERFACE_COMPILE_DEFINITIONS>)
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add_executable(UseABstatic mainAB.c)
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target_link_libraries(UseABstatic ABstatic)
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# Test module definition file to export object library symbols in the test
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# below if the platform needs and supports it.
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set(ABshared_SRCS $<TARGET_OBJECTS:A>)
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if(CMAKE_LINK_DEF_FILE_FLAG OR NOT WIN32)
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list(APPEND ABshared_SRCS $<TARGET_OBJECTS:B> AB.def)
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else()
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set(NO_A NO_A)
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list(APPEND ABshared_SRCS $<TARGET_OBJECTS:Bexport>)
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endif()
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# Test shared library without its own sources.
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add_library(ABshared SHARED ${dummy} ${ABshared_SRCS})
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target_include_directories(ABshared PUBLIC $<TARGET_PROPERTY:B,INTERFACE_INCLUDE_DIRECTORIES>)
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target_compile_definitions(ABshared PUBLIC $<TARGET_PROPERTY:B,INTERFACE_COMPILE_DEFINITIONS>)
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add_executable(UseABshared mainAB.c)
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set_property(TARGET UseABshared PROPERTY COMPILE_DEFINITIONS SHARED_B ${NO_A})
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target_link_libraries(UseABshared ABshared)
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# Test executable without its own sources.
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add_library(ABmain OBJECT mainAB.c)
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target_include_directories(ABmain PUBLIC $<TARGET_PROPERTY:B,INTERFACE_INCLUDE_DIRECTORIES>)
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target_compile_definitions(ABmain PUBLIC $<TARGET_PROPERTY:B,INTERFACE_COMPILE_DEFINITIONS>)
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add_executable(UseABinternal ${dummy}
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$<TARGET_OBJECTS:ABmain> $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:B>
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)
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# Test target-level dependencies of executable without sources.
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file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/UseABinternalDep.cmake)
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add_custom_target(UseABinternalDep COMMAND ${CMAKE_COMMAND} -E touch UseABinternalDep.cmake)
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add_custom_command(TARGET UseABinternal POST_BUILD COMMAND ${CMAKE_COMMAND} -P UseABinternalDep.cmake)
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add_dependencies(UseABinternal UseABinternalDep)
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# Test a static library with sources from a different static library
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add_library(UseCstaticObjs STATIC $<TARGET_OBJECTS:Cstatic> $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:Bexport>)
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# Test a shared library with sources from a different shared library
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add_library(UseCsharedObjs SHARED $<TARGET_OBJECTS:Cshared> $<TARGET_OBJECTS:A> $<TARGET_OBJECTS:Bexport>)
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# Test a shared executable with sources from a different shared library
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add_executable(UseABstaticObjs $<TARGET_OBJECTS:UseABstatic>)
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target_link_libraries(UseABstaticObjs ABstatic)
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add_subdirectory(ExportLanguages)
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add_subdirectory(LinkObjects)
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add_subdirectory(Transitive)
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