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#
# Copyright (c) 2026, Apollo Telephone Laboratories.
# Provided under the BSD-3 clause.
#
IMG_PATH = sboot.img
CC = clang
LD = ld.lld
OBJCOPY = llvm-objcopy
CFLAGS = \
-Wall \
-pedantic \
-ffreestanding \
-mno-red-zone \
-mno-avx \
-mno-avx2 \
-mno-sse2 \
-nostdlib \
-nostdinc
.PHONY: all
all: test
rm -f $(IMG_PATH)
mkfs.fat -C $(IMG_PATH) 4096
mmd -i $(IMG_PATH) ::/EFI
mmd -i $(IMG_PATH) ::/EFI/BOOT
mcopy -i $(IMG_PATH) kernel.bin ::
mcopy -i $(IMG_PATH) ../BOOTX64.EFI ::EFI/BOOT
.PHONY: test
test:
$(CC) -c $(CFLAGS) test.c -o test.o
$(LD) -Tlink.ld test.o -o kernel.sys
$(OBJCOPY) -O binary kernel.sys kernel.bin
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