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cmake_minimum_required (VERSION 2.6)
project(Plugin)
# Test per-target output directory properties.
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${Plugin_BINARY_DIR}/bin)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${Plugin_BINARY_DIR}/lib/plugin)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${Plugin_BINARY_DIR}/lib/static)
# We need the dynamic loader support from KWSys to load the plugin in
# the executable.
set(KWSYS_NAMESPACE kwsys)
set(KWSYS_HEADER_ROOT ${Plugin_BINARY_DIR}/include)
set(KWSYS_USE_DynamicLoader 1)
add_subdirectory(${Plugin_SOURCE_DIR}/../../Source/kwsys src/kwsys)
# Configure the location of plugins.
configure_file(${Plugin_SOURCE_DIR}/src/example_exe.h.in
${Plugin_BINARY_DIR}/include/example_exe.h @ONLY)
# We need to include headers from the source tree and configured
# headers in the build tree.
include_directories(
${Plugin_BINARY_DIR}/include
${Plugin_SOURCE_DIR}/include
)
# Create an executable that exports an API for use by plugins.
add_executable(example_exe src/example_exe.cxx)
set_target_properties(example_exe PROPERTIES
ENABLE_EXPORTS 1
OUTPUT_NAME example
# Test placing exe import library in unique directory.
ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}/exe
)
target_link_libraries(example_exe kwsys)
# Create a plugin that uses the API provided by the executable.
# This module "links" to the executable to use the symbols.
add_library(example_mod_1 MODULE src/example_mod_1.c)
target_link_libraries(example_mod_1 example_exe)
if(CMAKE_SHARED_LIBRARY_SONAME_C_FLAG AND
"${CMAKE_C_CREATE_SHARED_MODULE}" MATCHES "SONAME_FLAG")
# Add a second plugin that should not have any soname.
add_library(example_mod_2 MODULE src/example_mod_1.c)
target_link_libraries(example_mod_2 example_exe)
set_property(TARGET example_mod_2 PROPERTY NO_SONAME 1)
# Verify that targets export with proper IMPORTED SONAME properties.
export(TARGETS example_mod_1 example_mod_2 NAMESPACE exp_
FILE ${CMAKE_CURRENT_BINARY_DIR}/mods.cmake)
include(${CMAKE_CURRENT_BINARY_DIR}/mods.cmake)
get_property(configs TARGET exp_example_mod_1 PROPERTY IMPORTED_CONFIGURATIONS)
foreach(c ${configs})
string(TOUPPER "${c}" CONFIG)
get_property(soname1 TARGET exp_example_mod_1 PROPERTY IMPORTED_SONAME_${CONFIG})
get_property(soname2 TARGET exp_example_mod_2 PROPERTY IMPORTED_NO_SONAME_${CONFIG})
if(soname1)
message(STATUS "exp_example_mod_1 has IMPORTED_SONAME_${CONFIG} as expected: ${soname1}")
else()
message(SEND_ERROR "exp_example_mod_1 does not have IMPORTED_SONAME_${CONFIG} but should")
endif()
if(soname2)
message(STATUS "exp_example_mod_2 has IMPORTED_NO_SONAME_${CONFIG} as expected: ${soname2}")
else()
message(SEND_ERROR "exp_example_mod_2 does not have IMPORTED_NO_SONAME_${CONFIG} but should")
endif()
endforeach()
# Parse the binary to check for SONAME if possible.
if("${CMAKE_EXECUTABLE_FORMAT}" MATCHES "ELF")
find_program(READELF_EXE readelf)
if(READELF_EXE)
add_custom_target(check_mod_soname ALL COMMAND
${CMAKE_COMMAND} -Dreadelf=${READELF_EXE}
-Dmod1=$<TARGET_FILE:example_mod_1>
-Dmod2=$<TARGET_FILE:example_mod_2>
-P ${CMAKE_CURRENT_SOURCE_DIR}/check_mod_soname.cmake
)
add_dependencies(check_mod_soname example_mod_1 example_mod_2)
endif()
endif()
endif()
# TODO:
# - create a plugin that links to a static lib
# - create a plugin that links to a shared lib
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