mirror of
https://github.com/badcf00d/UEFI-helloworld
synced 2026-08-26 10:26:04 -04:00
46 lines
1.1 KiB
Makefile
46 lines
1.1 KiB
Makefile
ASM = nasm
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ASMFLAGS = -f win64
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LINKER = clang
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LLD-FLAGS = --target=x86_64-unknown-windows -nostdlib -Wl,-entry:_start -Wl,-subsystem:efi_application -fuse-ld=lld
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SRC_DIR = src
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OBJ_DIR = obj
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EFI_DIR = efi
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INC_DIR = inc
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SRC = $(wildcard $(SRC_DIR)/*.asm)
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OBJ = $(SRC:$(SRC_DIR)/%.asm=$(OBJ_DIR)/%.obj)
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EFI = $(EFI_DIR)/uefi.efi
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BIOS = $(wildcard $(INC_DIR)/*.bios)
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BOOT_DRIVE = uefi.img
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.PHONY: clean qemu all img
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all: $(OBJ)
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$(LINKER) $(LLD-FLAGS) -o $(EFI) $<
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make img
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clean:
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rm -f $(OBJ) $(BOOT_DRIVE) $(EFI)
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qemu:
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qemu-system-x86_64 -bios $(BIOS) -drive file=$(BOOT_DRIVE),format=raw
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img:
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ifeq (, $(shell which mkfs.vfat))
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$(error "Can't find mkfs.vfat, consider doing sudo apt install dosfstools")
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endif
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ifeq (, $(shell which mcopy))
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$(error "Can't find mcopy, consider doing sudo apt install mtools")
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endif
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dd if=/dev/zero of=$(BOOT_DRIVE) bs=1M count=1
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mkfs.vfat $(BOOT_DRIVE)
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mmd -i $(BOOT_DRIVE) ::EFI
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mmd -i $(BOOT_DRIVE) ::EFI/BOOT
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mcopy -i $(BOOT_DRIVE) $(EFI) ::EFI/BOOT/BOOTX64.EFI
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$(OBJ_DIR)/%.obj: $(SRC_DIR)/%.asm
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$(ASM) $(ASMFLAGS) -o $@ $<
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