Makefile

/*
 * This makefile is preprocessed and cannot be executed directly by make!
 * There is a script at the root of the source tree that does the preprocessing
 * and then executes the makefile, use it!WD
 */

#include <boot.h>
#include <addrs.h>

/*
 * Parameters passed to GNU make.
 * `dbg=y|n': decides whether debugging mode is on or not.
 * `sep_boot=y|n': decides whether bootloader and kernel should be seperate
 * images or not.
 * TODO: add functionality for these parameters
 */

SHELL = /bin/bash

/*
 * TODO: not needed by bochs (i just use objdump to obtain addresses), but
 * maybe a symbol file will be useful later. just keep it commented out.
 *%.sym: %.out
 *	objcopy --only-keep-debug $< $@
 */

%.img: %.out
	cp $< tmp.out
	objcopy --strip-debug --strip-unneeded tmp.out
	objcopy -O binary tmp.out $@
	rm tmp.out

%.out:
	make -C $* all

/*
 * TODO: merge run and debug targets and decide to debug or not using the dbg
 * parameter.
 */

all: image.img

image.img: boot.img kernel.img
	rm -f image.img
	bximage -mode=create -fd=1.44M -q image.img
	dd if=boot.img of=image.img bs=$(shell printf "%d" $$((SECTOR_SIZE))) \
	count=$(shell printf "%d" $$((BOOTSYS_SECTORS + 1))) conv=notrunc
	dd if=kernel.img of=image.img bs=$(shell printf "%d" $$((SECTOR_SIZE))) \
	count=$(shell printf "%d" $$((KERNEL_SECTORS))) \
	seek=$(shell printf "%d" $$((BOOTSYS_SECTORS + 1))) conv=notrunc

clean:
	make -C boot clean
	make -C kernel clean
	rm -f *.out *.img *.sym bochsout.txt


.PHONY: all clean