86 lines
2.1 KiB
CMake
86 lines
2.1 KiB
CMake
function(add_loader_object name)
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cmake_parse_arguments(
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"ADD_LOADER_OBJECT"
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"ALIAS" # Option argument
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"SRC" # Single value arguments
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"DEPENDS;COMPILE_OPTIONS" # Multi value arguments
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${ARGN}
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)
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get_fq_target_name(${name} fq_target_name)
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get_fq_deps_list(fq_deps_list ${ADD_LOADER_OBJECT_DEPENDS})
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if(ADD_LOADER_OBJECT_ALIAS)
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list(LENGTH ADD_LOADER_OBJECT_DEPENDS deps_size)
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if(NOT (${deps_size} EQUAL "1"))
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message(FATAL_ERROR "A loader object alias should have exactly one dependency.")
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endif()
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list(GET ADD_LOADER_OBJECT_DEPENDS 0 dep)
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get_fq_dep_name(fq_dep_name ${dep})
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add_custom_target(${fq_target_name})
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add_dependencies(${fq_target_name} ${fq_dep_name})
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get_target_property(loader_object ${fq_dep_name} LOADER_OBJECT)
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set_target_properties(
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${fq_target_name}
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PROPERTIES
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"TARGET_TYPE" "${OBJECT_LIBRARY_TARGET_TYPE}"
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"LOADER_OBJECT" "${loader_object}"
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"OBJECT_FILES" ""
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"DEPS" "${fq_dep_name}"
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)
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return()
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endif()
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add_object_library(
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${name}.__objects__
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SRCS ${ADD_LOADER_OBJECT_SRC}
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DEPENDS ${ADD_LOADER_OBJECT_DEPENDS}
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COMPILE_OPTIONS ${ADD_LOADER_OBJECT_COMPILE_OPTIONS}
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)
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set(objfile ${LIBC_BUILD_DIR}/lib/${name}.o)
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add_custom_command(
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OUTPUT ${objfile}
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COMMAND cp $<TARGET_OBJECTS:${fq_target_name}.__objects__> ${objfile}
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DEPENDS $<TARGET_OBJECTS:${fq_target_name}.__objects__>
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)
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add_custom_target(
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${fq_target_name}
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DEPENDS ${objfile}
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)
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set_target_properties(
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${fq_target_name}
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PROPERTIES
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"TARGET_TYPE" "${OBJECT_LIBRARY_TARGET_TYPE}"
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"LOADER_OBJECT" "${objfile}"
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"OBJECT_FILES" ""
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"DEPS" "${fq_target_name}.__objects__"
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)
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endfunction()
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if(NOT (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${LIBC_TARGET_ARCHITECTURE}))
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message(STATUS "Skipping loader for target architecture ${LIBC_TARGET_ARCHITECTURE}")
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return()
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endif()
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add_subdirectory(${LIBC_TARGET_ARCHITECTURE})
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add_loader_object(
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crt1
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ALIAS
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DEPENDS
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.${LIBC_TARGET_ARCHITECTURE}.crt1
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)
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add_loader_object(
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crti
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SRC
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crti.cpp
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)
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add_loader_object(
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crtn
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SRC
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crtn.cpp
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)
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