88 lines
2.8 KiB
CMake
88 lines
2.8 KiB
CMake
cmake_minimum_required(VERSION 3.5)
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project(photon C ASM-ATT)
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macro(subdirlist result curdir)
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file(GLOB children RELATIVE ${curdir} ${curdir}/*)
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set(dirlist "")
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foreach (child ${children})
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if (IS_DIRECTORY ${curdir}/${child})
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list(APPEND dirlist ${child})
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endif()
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endforeach()
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set(${result} ${dirlist})
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endmacro()
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subdirlist(machine_dirs ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/machine)
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if (NOT PLATFORM)
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set(PLATFORM "linux")
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endif ()
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if (NOT MACHINE)
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set(supported_machines "")
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foreach (dir ${machine_dirs})
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set(supported_machines "${supported_machines}${dir} ")
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endforeach (dir)
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message(FATAL_ERROR "No machine architecture specified.\n"
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" Supported machines: ${supported_machines}\n"
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" Ex. `cmake -DMACHINE=x86_64 <dir>`")
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endif ()
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if (NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/sys/${PLATFORM})
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message(FATAL_ERROR "Unsupported platform: ${PLATFORM}")
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endif ()
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message(STATUS "Target platform: ${PLATFORM}")
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set(CMAKE_EXE_LINKER_FLAGS
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"${CMAKE_EXE_LINKER_FLAGS} -ffreestanding -nostdlib -lgcc")
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set(photon_libc_sources "")
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set(generic_dirs string)
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foreach (dir ${generic_dirs})
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file(GLOB dir_sources ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/${dir}/*.c)
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set(photon_libc_sources ${photon_libc_sources} ${dir_sources})
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endforeach (dir)
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file(GLOB_RECURSE photon_libc_headers ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/include/*.h)
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file(GLOB photon_libc_crt
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${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/sys/${PLATFORM}/machine/${MACHINE}/crt*.s)
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add_library(crt OBJECT ${photon_libc_crt})
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file(GLOB platform_sources
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${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/sys/${PLATFORM}/*.c
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${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/sys/${PLATFORM}/machine/${MACHINE}/*.c
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${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/sys/${PLATFORM}/machine/${MACHINE}/*.s)
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foreach (crt_source ${photon_libc_crt})
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list(REMOVE_ITEM platform_sources ${crt_source})
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endforeach (crt_source)
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file(GLOB platform_headers
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${CMAKE_CURRENT_SOURCE_DIR}/photon/sys/${PLATFORM}/*.h
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${CMAKE_CURRENT_SOURCE_DIR}/photon/sys/${PLATFORM}/machine/${MACHINE}/*.h)
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set(photon_libc_sources ${photon_libc_sources} ${platform_sources})
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set(photon_libc_headers ${photon_libc_headers} ${platform_headers})
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add_library(c STATIC ${photon_libc_sources} ${photon_libc_headers})
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target_compile_options(c PRIVATE -ffreestanding -nostdlib -nostdinc)
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target_link_libraries(c crt)
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target_include_directories(c PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/photon/libc/include)
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add_custom_target(sysroot
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DEPENDS ${photon_libc_headers}
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COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/scripts/create-sysroot.sh
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${CMAKE_CURRENT_SOURCE_DIR}
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${CMAKE_CURRENT_BINARY_DIR}
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${PLATFORM} ${MACHINE})
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add_dependencies(c sysroot)
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add_subdirectory(tests)
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