lindows/CMakeLists.txt
2024-02-27 08:33:16 -05:00

137 lines
3.9 KiB
CMake

cmake_minimum_required(VERSION 3.28)
# grab commands
include(ExternalProject)
# dear god
project(lindows)
# find our programs
set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake.d/")
find_package(NTFS3g REQUIRED)
find_package(CoreUtils REQUIRED)
find_package(MTools REQUIRED)
# TODO: find_package for python (for GRUB)
# TODO: find_package for bison (for GRUB)
# TODO: find_package for flex (for GRUB)
# TODO: find_package for sfdisk (for disk image generation)
# TODO: find_package for mkfs.vfat (for GRUB)
# TODO: add mmd to mtools
# TODO: add mkdir to coreutils
# make c drive mount point
file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lindows_c")
file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lindows_efi")
# build grub
file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/grub")
ExternalProject_Add(GRUB
GIT_REPOSITORY "https://git.savannah.gnu.org/git/grub.git"
GIT_TAG "grub-2.12"
GIT_SHALLOW TRUE
GIT_PROGRESS TRUE
UPDATE_COMMAND "" # the commit is fixed, we will never need to update
# this should make it stop rebuilding every `make`
CONFIGURE_COMMAND ./bootstrap
COMMAND ./configure
--host=x86_64-pc-linux-gnu
--target=x86_64
--with-platform=efi
--disable-efiemu
--prefix=${CMAKE_CURRENT_BINARY_DIR}/grub
BUILD_COMMAND make
BUILD_IN_SOURCE TRUE
INSTALL_COMMAND make install
)
# this should probably be a shell script, i unfortunately do not care
add_custom_command(OUTPUT lindows_c.img
# create empty 128MiB disk image
COMMAND "${CoreUtils_dd_EXECUTABLE}" ARGS
if=/dev/zero
of=lindows_c.img
bs=1M
count=128
# format disk with new NTFS filesystem
COMMAND "${NTFS3g_Mkfs_EXECUTABLE}" ARGS -F # scary!
-L Windows
./lindows_c.img
# mount filesystem
COMMAND "${NTFS3g_Mount_EXECUTABLE}" ARGS
-o no_def_opts
lindows_c.img
lindows_c
# create system folders
COMMAND mkdir ARGS lindows_c/Windows
COMMAND mkdir ARGS lindows_c/Windows/GRUB
COMMAND mkdir ARGS lindows_c/Windows/GRUB/x86_64-efi
# grub stuff
COMMAND cp ${CMAKE_CURRENT_BINARY_DIR}/grub/lib/grub/x86_64-efi/* lindows_c/Windows/GRUB/x86_64-efi
# copy linux kernel from host please replace with custom kernel
COMMAND cp ARGS /boot/vmlinuz-linux lindows_c/Windows/vmlinuz-linux
# create users folder
COMMAND mkdir ARGS lindows_c/Users
# unmount filesystem
COMMAND "umount" ARGS lindows_c
)
# this makes the efi system partition
add_custom_command(OUTPUT lindows_efi.img
COMMAND mkdir ARGS -p lindows_efi/
COMMAND "${CMAKE_CURRENT_BINARY_DIR}/grub/bin/grub-mkimage" ARGS
-p /Windows/GRUB
-O x86_64-efi
-o lindows_efi/grubx64.efi
-c ${CMAKE_CURRENT_SOURCE_DIR}/src/grub/grub-early.cfg
part_gpt ntfs
COMMAND "${CoreUtils_dd_EXECUTABLE}" ARGS
if=/dev/zero
of=lindows_efi.img
bs=1M
count=33
COMMAND mkfs.vfat lindows_efi.img -F 32
COMMAND mmd -i lindows_efi.img ::/EFI
COMMAND mmd -i lindows_efi.img ::/EFI/BOOT
COMMAND ${MTools_Copy_EXECUTABLE} -i lindows_efi.img lindows_efi/grubx64.efi ::/EFI/BOOT/BOOTX64.EFI
DEPENDS src/grub/grub-early.cfg
)
# make the full disk image
add_custom_command(OUTPUT lindows.img
COMMAND echo ARGS label: gpt > disk.sfdisk
COMMAND echo ARGS unit: sectors >> disk.sfdisk
COMMAND echo ARGS 1MiB 33MiB C12A7328-F81F-11D2-BA4B-00A0C93EC93B - >> disk.sfdisk
COMMAND echo ARGS 34MiB 128MiB EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 - >> disk.sfdisk
COMMAND "${CoreUtils_dd_EXECUTABLE}" ARGS
if=/dev/zero
of=lindows.img
bs=1M
count=256
# partition disk
COMMAND sfdisk ARGS lindows.img < disk.sfdisk
# write partitions
COMMAND "${CoreUtils_dd_EXECUTABLE}" ARGS
if=lindows_efi.img
of=lindows.img
bs=1M
count=33
seek=1
conv=notrunc
COMMAND "${CoreUtils_dd_EXECUTABLE}" ARGS
if=lindows_c.img
of=lindows.img
bs=1M
count=128
seek=34
conv=notrunc
DEPENDS lindows_c.img lindows_efi.img
BYPRODUCTS disk.sfdisk
)
add_custom_target(lindows ALL DEPENDS lindows.img)