105 lines
2.7 KiB
CMake
105 lines
2.7 KiB
CMake
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include(CMakeParseArguments)
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# inspired by https://github.com/abseil/abseil-cpp
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# cc_shared_library()
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# CMake function to imitate Bazel's cc_shared_library rule.
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#
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# Parameters:
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# NAME: name of target
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# HDRS: List of public header files for the library
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# SRCS: List of source files for the library
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# DEPS: List of other libraries to be linked in to the binary targets
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# COPTS: List of private compile options
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# DEFINES: List of public defines
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# LINKOPTS: List of link options
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#
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# cc_library(
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# NAME
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# awesome
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# HDRS
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# "a.h"
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# SRCS
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# "a.cc"
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# )
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# cc_shared_library(
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# NAME
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# fantastic_lib
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# SRCS
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# "b.cc"
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# DEPS
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# :awesome
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# )
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#
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function(cc_shared_library)
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cmake_parse_arguments(
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CC_LIB # prefix
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"TESTONLY" # options
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"NAME" # one value args
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"HDRS;SRCS;COPTS;DEFINES;LINKOPTS;DEPS;INCLUDES" # multi value args
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${ARGN}
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)
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if(CC_LIB_TESTONLY AND (NOT BUILD_TESTING))
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return()
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endif()
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# Check if this is a header only library
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set(_CC_SRCS "${CC_LIB_SRCS}")
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foreach(src_file IN LISTS _CC_SRCS)
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if(${src_file} MATCHES ".*\\.(h|inc)")
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list(REMOVE_ITEM _CC_SRCS "${src_file}")
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endif()
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endforeach()
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if(_CC_SRCS STREQUAL "")
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set(CC_LIB_IS_INTERFACE 1)
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else()
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set(CC_LIB_IS_INTERFACE 0)
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endif()
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if(NOT CC_LIB_IS_INTERFACE)
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add_library(${CC_LIB_NAME} SHARED)
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target_sources(${CC_LIB_NAME}
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PRIVATE ${CC_LIB_SRCS} ${CC_LIB_HDRS})
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target_compile_options(${CC_LIB_NAME} PRIVATE
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-fvisibility=hidden
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-fvisibility-inlines-hidden
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)
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target_link_options(${CC_LIB_NAME} PRIVATE
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-Wl,--exclude-libs,ALL
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-Wl,--no-undefined
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)
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target_link_options(${CC_LIB_NAME} PRIVATE -Wl,--whole-archive)
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target_link_libraries(${CC_LIB_NAME}
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PUBLIC ${CC_LIB_DEPS}
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PRIVATE ${CC_LIB_LINKOPTS}
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)
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target_link_options(${CC_LIB_NAME} PRIVATE -Wl,--no-whole-archive)
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target_include_directories(${CC_LIB_NAME}
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PUBLIC
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"$<BUILD_INTERFACE:${COMMON_INCLUDE_DIRS}>"
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${CC_LIB_INCLUDES}
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)
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target_compile_options(${CC_LIB_NAME} PRIVATE ${CC_LIB_COPTS})
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target_compile_definitions(${CC_LIB_NAME} PUBLIC ${CC_LIB_DEFINES})
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else()
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# Generating header only library
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add_library(${CC_LIB_NAME} INTERFACE)
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target_include_directories(${CC_LIB_NAME}
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INTERFACE
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"$<BUILD_INTERFACE:${COMMON_INCLUDE_DIRS}>"
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${CC_LIB_INCLUDES}
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)
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target_link_libraries(${CC_LIB_NAME}
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INTERFACE ${CC_LIB_DEPS} ${CC_LIB_LINKOPTS}
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)
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target_compile_definitions(${CC_LIB_NAME} INTERFACE ${CC_LIB_DEFINES})
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endif()
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# add alias for the library target
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add_library(:${CC_LIB_NAME} ALIAS ${CC_LIB_NAME})
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endfunction()
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