Mirco De Marchi
112 lines
4.1 KiB
CMake
112 lines
4.1 KiB
CMake
# ------------------------------------------------------------------------------
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# Initialize the project.
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project(MentOs)
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cmake_minimum_required(VERSION 2.8.4)
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message(STATUS "Crosscompiling: ${CMAKE_CROSSCOMPILING}")
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# ------------------------------------------------------------------------------
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# Add operating system specific option.
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message(STATUS "System name: ${CMAKE_HOST_SYSTEM_NAME}")
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message(STATUS "Kernel version: ${CMAKE_SYSTEM_VERSION}")
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if ((${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Darwin") OR APPLE)
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# Apple MacOSx
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elseif ((${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Windows") OR WIN32)
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# Windows
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set(EMULATOR_FLAGS ${EMULATOR_FLAGS} -sdl)
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else()
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# Generic Unix System
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find_program(LSB_RELEASE_EXEC lsb_release)
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execute_process(COMMAND "${LSB_RELEASE_EXEC}" --short --release
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OUTPUT_VARIABLE LSB_RELEASE_VERSION_SHORT
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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message(STATUS "LSB version: ${LSB_RELEASE_VERSION_SHORT}")
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if (${LSB_RELEASE_VERSION_SHORT} MATCHES "^18")
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# Ubuntu 18
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set(EMULATOR_FLAGS ${EMULATOR_FLAGS} -sdl)
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elseif (${LSB_RELEASE_VERSION_SHORT} MATCHES "^19")
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# Ubuntu 19
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set(EMULATOR_FLAGS ${EMULATOR_FLAGS} -display gtk)
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elseif (${LSB_RELEASE_VERSION_SHORT} MATCHES "^20")
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# Ubuntu 20
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set(EMULATOR_FLAGS ${EMULATOR_FLAGS} -display gtk)
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else()
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set(EMULATOR_FLAGS ${EMULATOR_FLAGS} -sdl)
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endif()
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endif()
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# ------------------------------------------------------------------------------
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# Add the debugging option.
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set(DEBUGGING_TYPE "DEBUG_STDIO" CACHE STRING
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"Chose the type of debugging: DEBUG_STDIO DEBUG_LOG")
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set_property(
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CACHE DEBUGGING_TYPE PROPERTY STRINGS
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DEBUG_STDIO
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DEBUG_LOG)
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if ("${DEBUGGING_TYPE}" STREQUAL "DEBUG_STDIO" OR
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"${DEBUGGING_TYPE}" STREQUAL "DEBUG_LOG")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D${DEBUGGING_TYPE}")
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message(STATUS "Setting debugging type to ${DEBUGGING_TYPE}.")
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else ()
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message(FATAL_ERROR "Debugging type ${DEBUGGING_TYPE} is not valid.")
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endif ()
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# ------------------------------------------------------------------------------
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# Add the sub-directories.
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add_subdirectory(mentos)
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add_subdirectory(initscp)
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# ------------------------------------------------------------------------------
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# Generate the initrd filesystem.
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add_custom_target(
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initfs
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COMMAND echo "---------------------------------------------"
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COMMAND echo "Initializing 'initfs'..."
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COMMAND echo "---------------------------------------------"
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COMMAND ./initscp/initfscp -s ${CMAKE_SOURCE_DIR}/files -t ${CMAKE_BINARY_DIR}/initfs -m /dev
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COMMAND echo "---------------------------------------------"
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COMMAND echo "Done!"
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COMMAND echo "---------------------------------------------"
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DEPENDS initfscp
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)
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# ------------------------------------------------------------------------------
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# Set memory size.
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SET(MEMORY_SIZE 1096M)
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# ------------------------------------------------------------------------------
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# Builds the code and runs qemu with the built Os.
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SET(EMULATOR qemu-system-i386)
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if (${DEBUGGING_TYPE} STREQUAL DEBUG_LOG)
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SET(EMULATOR_FLAGS ${EMULATOR_FLAGS} -serial file:serial.log)
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elseif (${DEBUGGING_TYPE} STREQUAL DEBUG_STDIO)
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SET(EMULATOR_FLAGS ${EMULATOR_FLAGS} -serial stdio)
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endif ()
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SET(EMULATOR_FLAGS ${EMULATOR_FLAGS} -vga std)
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SET(EMULATOR_FLAGS ${EMULATOR_FLAGS} -k it)
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SET(EMULATOR_FLAGS ${EMULATOR_FLAGS} -m ${MEMORY_SIZE})
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SET(EMULATOR_KERNEL -kernel mentos/kernel.bin)
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SET(EMULATOR_FS -initrd initfs)
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add_custom_target(
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qemu
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COMMAND ${EMULATOR} ${EMULATOR_FLAGS} ${EMULATOR_KERNEL} ${EMULATOR_FS}
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DEPENDS MentOs
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DEPENDS initfs
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)
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# ------------------------------------------------------------------------------
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# Builds the code and runs qemu with the built Os.
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SET(EMULATOR_FLAGS_GDB ${EMULATOR_FLAGS} -s -S)
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SET(GDB_PROG cgdb)
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SET(GDB_ARGS -x ${CMAKE_SOURCE_DIR}/.gdb.debug)
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add_custom_target(
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qemu-gdb
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COMMAND xterm -geometry 160x30-0-0 -e ${EMULATOR} ${EMULATOR_FLAGS_GDB} ${EMULATOR_KERNEL} ${EMULATOR_FS} &
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COMMAND xterm -geometry 160x30-0+0 -e ${GDB_PROG} ${GDB_ARGS} &
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DEPENDS MentOs
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DEPENDS initfs
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)
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