nub31/nub-os
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nub31
2025-08-24 21:00:04 +02:00
parent bffea5b0c1
commit 01f16ce210
7 changed files with 123 additions and 83 deletions
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32
makefile
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@@ -1,9 +1,16 @@
CC = x86_64-elf-gcc
LD = x86_64-elf-ld
CFLAGS = -m64 -ffreestanding -fno-builtin -Wall -Wextra -Wshadow -std=c23
CFLAGS = -m64 -ffreestanding -fno-builtin -Wall -Wextra -Wshadow -std=c23
LDFLAGS =
SRC_C := src/kernel.c src/vga.c src/idt.c src/string.c
SRC_ASM := src/boot.asm src/idt_stub.asm
OBJ_C := $(SRC_C:src/%.c=.build/%.o)
OBJ_ASM := $(SRC_ASM:src/%.asm=.build/%.o)
OBJS := $(OBJ_C) $(OBJ_ASM)
all: .build/nub-os.iso
clean:
@@ -12,26 +19,17 @@ clean:
build-dir:
mkdir .build 2>/dev/null || true
.build/nub-os.iso: build-dir .build/kernel
.build/nub-os.iso: .build/kernel
mkdir -p .build/iso/boot/grub
cp grub.cfg .build/iso/boot/grub
cp .build/kernel .build/iso/boot/
grub-mkrescue -o .build/nub-os.iso .build/iso/
.build/kernel: build-dir .build/boot.o .build/kernel.o .build/vga.o .build/idt.o .build/idt_stub.o
$(LD) $(LDFLAGS) -T src/boot.ld -o .build/kernel .build/boot.o .build/kernel.o .build/vga.o .build/idt.o .build/idt_stub.o
.build/kernel: $(OBJS)
$(LD) $(LDFLAGS) -T src/boot.ld -o $@ $^
.build/kernel.o: build-dir src/kernel.c
$(CC) $(CFLAGS) -c -o .build/kernel.o src/kernel.c
.build/%.o: src/%.c | build-dir
$(CC) $(CFLAGS) -c -o $@ $<
.build/vga.o: build-dir src/vga.c
$(CC) $(CFLAGS) -c -o .build/vga.o src/vga.c
.build/idt.o: build-dir src/idt.c
$(CC) $(CFLAGS) -c -o .build/idt.o src/idt.c
.build/idt_stub.o: build-dir src/idt_stub.asm
nasm -f elf64 -o .build/idt_stub.o src/idt_stub.asm
.build/boot.o: build-dir src/boot.asm
nasm -f elf64 -o .build/boot.o src/boot.asm
.build/%.o: src/%.asm | build-dir
nasm -f elf64 -o $@ $<