Initial commit

makefile

@@ -0,0 +1,48 @@
+GCCPARAMS = -m32 -fno-pie -nostdlib -fstrength-reduce -fomit-frame-pointer -finline-functions -fno-builtin -nostdinc 
+ASPARAMS = -f elf32
+LDPARAMS = -m elf_i386
+
+#BUILD_NUMBER_FILE=build-number.txt
+
+objects = obj/start.o \
+	      obj/main.o \
+	      obj/scrn.o \
+	      obj/gdt.o \
+	      obj/idt.o \
+	      obj/isrs.o \
+	      obj/irq.o \
+	      obj/timer.o \
+	      obj/kb.o
+
+run: kernel.iso
+	qemu-system-x86_64 -cdrom kernel.iso &
+
+obj/%.o: src/%.c
+	mkdir -p $(@D)
+	gcc $(GCCPARAMS) -c -o $@ $<
+
+obj/%.o: src/%.asm
+	mkdir -p $(@D)
+	nasm $(ASPARAMS) -o $@ $<
+
+kernel.bin: linker.ld $(objects)
+	mkdir obj/bin
+	ld $(LDPARAMS) -T $< -o obj/bin/$@ $(objects)
+#https://www.linuxjournal.com/content/add-auto-incrementing-build-number-your-build-process
+#include buildnumber.mak
+
+kernel.iso: kernel.bin
+	mkdir iso
+	mkdir iso/boot
+	mkdir iso/boot/grub
+	cp obj/bin/kernel.bin iso/boot/kernel.bin
+	echo 'menuentry SDOS {'  > iso/boot/grub/grub.cfg
+	echo '  multiboot /boot/kernel.bin'    	 >> iso/boot/grub/grub.cfg
+	echo '  boot'                            >> iso/boot/grub/grub.cfg
+	echo '}'                                 >> iso/boot/grub/grub.cfg
+	grub-mkrescue --output=kernel.iso iso
+	rm -rf iso
+
+.PHONY: clean
+clean:
+	rm -rf obj kernel.iso