//----------------------------------------------------------------------------//
//                           GNU GPL OS/K                                     //
//                                                                            //
//  Authors:    spectral`                                                     //
//              NeoX                                                          //
//                                                                            //
//  Desc:       Project Makefile                                              //
//----------------------------------------------------------------------------//

// The madman's Makefile
#include "build/preproc.h"

CCNAME="/opt/cross-cc/bin/x86_64-elf-gcc"
CC2NAME=gcc
COPTIM=-O2
CWARNS=-Wall -Wextra -Wshadow -Wpedantic
CINCLUDES=-isystem./kaleid/include

CFLAGS1=-std=gnu11 -nostdlib -ffreestanding -mcmodel=large
CFLAGS2=-m64 -masm=intel -mno-red-zone -mno-mmx -mno-sse -mno-sse2
CFLAGS=$(CFLAGS1) $(CFLAGS2) $(SFLAG)

CC=$(CCNAME) $(COPTIM) $(CWARNS) $(CFLAGS) $(CINCLUDES)

ASM=nasm
ASMFLAGS=
BOOTFLAGS=-f bin

BINDIR=./build/bin
OBJDIR=./build/obj

BOOTDIR=boot
COMMDIR=kaleid/common
KERNDIR=kaleid/kernel
SYSTDIR=kaleid/system
LINXDIR=kaleid/common/test

all: bootloader kernel

boot.mbr.s: $(BOOTDIR)/mbr.s $(BOOTDIR)/mbr.inc
	$(ASM) $(BOOTFLAGS) $(BOOTDIR)/mbr.asm -o $(OBJDIR)/boot/mbr.bin

boot.loader.s: $(BOOTDIR)/loader.s
	$(ASM) $(BOOTFLAGS) $(BOOTDIR)/loader.asm -o $(OBJDIR)/boot/loader.bin

bootloader: boot.mbr.s boot.loader.s
	cp $(OBJDIR)/boot/mbr.bin $(BINDIR)/mbr.bin
	cp $(OBJDIR)/boot/loader.bin $(BINDIR)/loader.bin

//----------------------------------------------------------------------------#
// TESTING MAKEFILE

pseudo_kern:
	$(ASM) $(BOOTFLAGS) $(BOOTDIR)/pseudo_kernel.s -o $(OBJDIR)/boot/pkernel.bin

testing: bootloader pseudo_kern
	cat $(BINDIR)/bootloader.bin $(OBJDIR)/boot/pkernel.bin > $(BINDIR)/boot.bin

//----------------------------------------------------------------------------#
// COMMON MAKEFILE

COBJDIR=$(OBJDIR)/$(COMMDIR)
LOBJDIR=$(OBJDIR)/$(LINXDIR)

COMMOBJS=COBJ6(string, status, rand, memory, arith, strtol) COBJ4(itoa, ltoa, utoa, ultoa) COBJ4(atoi, atol, atou, atoul)

TCC=$(CC2NAME) $(COPTIM) $(CWARNS) $(CINCLUDES)
KCC=$(CC) -T ./build/kernel.ld -D_OSK_SOURCE -D_KALEID_KERNEL

comm-convert:
	COMPILE_CONVRT1(itoa)  -D_NEED_ITOA
	COMPILE_CONVRT1(ltoa)  -D_NEED_LTOA
	COMPILE_CONVRT1(utoa)  -D_NEED_UTOA
	COMPILE_CONVRT1(ultoa) -D_NEED_ULTOA
	COMPILE_CONVRT2(atoi)  -D_NEED_ATOI
	COMPILE_CONVRT2(atol)  -D_NEED_ATOL
	COMPILE_CONVRT2(atou)  -D_NEED_ATOU
	COMPILE_CONVRT2(atoul) -D_NEED_ATOUL

common: comm-convert
	COMPILE_COMMON(rand)
	COMPILE_COMMON(arith)
	COMPILE_COMMON(string)
	COMPILE_COMMON(status)
	COMPILE_COMMON(memory)
	COMPILE_COMMON(strtol)

tests: common
	$(TCC) -c $(LINXDIR)/test-common.c -o $(LOBJDIR)/test-common.o
	$(TCC) $(COMMOBJS) $(LOBJDIR)/test-common.o -o $(BINDIR)/kaleid-common.elf

//----------------------------------------------------------------------------#
// KERNEL MAKEFILE

KOBJDIR=$(OBJDIR)/$(KERNDIR)

KERNOBJS=KOBJ4(init/init, init/table, ke/panic, ke/terminal)

kernel: common
	COMPILE_KERNEL(init/init)
	COMPILE_KERNEL(init/table)
	COMPILE_KERNEL(ke/panic)
	COMPILE_KERNEL(ke/terminal)
	LINK_KERNEL(kaleid-kernel.elf)

//----------------------------------------------------------------------------#