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build: add initial Bootloader implementation

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Signed-off-by: EnderIce2 <enderice2@protonmail.com>
This commit is contained in:
EnderIce2
2025-01-23 21:43:03 +02:00
parent a4c5ab7ef3
commit a8ff50541a
30 changed files with 1424 additions and 25 deletions
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34
config.mk
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@ -8,16 +8,26 @@ OSNAME = Fennix
# OS architecture, check AVAILABLE_ARCHS for available options.
OSARCH = amd64
# This variable specifies the board type.
# It is crucial because the ARM booting process differs significantly from x86.
#
# ! This variable is ignored on x86 !
#
# Available options are in AVAILABLE_BOARDS.
BOARD_TYPE := raspi4
# Kernel version.
KERNEL_VERSION = dev
# Which bootloader to use.
# Available bootloaders:
# - builtin - Built-in
# - grub - GRUB
# - limine - Limine
BOOTLOADER = grub
BUILD_KERNEL = 1
BUILD_BOOTLOADER = 1
BUILD_USERSPACE = 1
BUILD_DRIVERS = 1
@ -35,10 +45,6 @@ COMPILER_PATH := $(CURDIR)/tools/cross
# Default: $(CURDIR)/tools/cross
__CONF_QEMU_PATH := $(CURDIR)/tools/cross
# Set libc to use. Available options:
# - internal - Use the internal libc
USE_LIBC = internal
@ -56,10 +62,24 @@ USE_LIBC = internal
# Available architectures. Do not change
export AVAILABLE_ARCHS := amd64 i386 arm aarch64
# Available board types. Do not change
export AVAILABLE_BOARDS := \
raspi0 \
raspi1 \
raspi2 \
raspi3 \
raspi4
ifneq ($(filter $(OSARCH),$(AVAILABLE_ARCHS)),$(OSARCH))
$(error OSARCH=$(OSARCH) is not a supported architecture. Choose one of: $(AVAILABLE_ARCHS))
endif
ifeq ($(filter amd64 i386,$(OSARCH)),)
ifneq ($(filter $(BOARD_TYPE),$(AVAILABLE_BOARDS)),$(BOARD_TYPE))
$(error BOARD_TYPE=$(BOARD_TYPE) is not a supported board type. Choose one of: $(AVAILABLE_BOARDS))
endif
endif
ARCH_MAP := amd64=x86_64 i386=i386 arm=arm aarch64=aarch64
COMPILER_ARCH := $(patsubst $(OSARCH)=%,%,$(filter $(OSARCH)=%,$(ARCH_MAP)))
__CONF_QEMU_PATH := $(__CONF_QEMU_PATH)/bin/qemu-system-$(COMPILER_ARCH)
@ -78,4 +98,10 @@ export __CONF_GDB := $(TOOLCHAIN_PREFIX)gdb
export DEBUG
export OSNAME
export OSARCH
export BOARD_TYPE
export KERNEL_VERSION
export TOOLCHAIN_AMD64_PREFIX := $(COMPILER_PATH)/bin/x86_64-fennix-
export TOOLCHAIN_I386_PREFIX := $(COMPILER_PATH)/bin/i386-fennix-
export TOOLCHAIN_ARM_PREFIX := $(COMPILER_PATH)/bin/arm-fennix-
export TOOLCHAIN_AARCH64_PREFIX := $(COMPILER_PATH)/bin/aarch64-fennix-