Implemented simple Multiboot1 kernel

defaults.mk

@@ -1,3 +1,30 @@
 #
 # kern. makefile defaults
 #
+
+# Tools
+HOSTCC = cc
+CC = i686-elf-gcc
+LD = i686-elf-ld
+AS = nasm
+MAKE = make
+
+# Flags
+CFLAGS 	= -Wall -Wextra -Wpedantic -Wno-pointer-arith\
+	  -ffreestanding -fno-stack-protector -fno-builtin -fno-pie -fcommon\
+	  -O2 -std=c17 -nostdinc -nostdlib -z notext -march=i386
+LDFLAGS	= -melf_i386
+ASFLAGS	=
+
+# Directories
+KERNEL_DIR = ./kernel
+BOOT_DIR = ./boot
+LIBC_DIR = ./libc
+USER_DIR = ./user
+
+# Modules
+MODULES	= $(KERNEL_DIR)	\
+	  $(BOOT_DIR)	\
+	  $(LIBC_DIR) 	\
+	  $(USER_DIR)
+