did some restructuring, got multitasking almost working

makefile

@@ -6,8 +6,7 @@ OSNAME := rockos
 C_SOURCES := $(shell find kernel -type f -name '*.c')
 S_SOURCES := $(shell find kernel -type f -name '*.S')
 
-# This correctly generates paths like obj/kernel/main.o
-OBJECTS := $(patsubst %.c, obj/%.o, $(C_SOURCES)) $(patsubst %.S, obj/%.o, $(S_SOURCES))
+OBJECTS := $(patsubst %, obj/%.o, $(C_SOURCES) $(S_SOURCES))
 
 CFLAGS  := -ffreestanding -O2 -Wall -Wextra -Ikernel
 LDFLAGS := -T kernel/linker.ld
@@ -25,11 +24,11 @@ $(OSNAME).iso: $(OSNAME).bin grub.cfg
 	cp grub.cfg isodir/boot/grub/grub.cfg
 	grub-mkrescue -o $(OSNAME).iso isodir
 
-obj/kernel/%.o: kernel/%.c
+obj/%.c.o: %.c
 	@mkdir -p $(dir $@)
 	$(CC) -c $< -o $@ $(CFLAGS)
 
-obj/kernel/%.o: kernel/%.S
+obj/%.S.o: %.S
 	@mkdir -p $(dir $@)
 	$(CC) -c $< -o $@ $(CFLAGS)