Makefile

# Top-level Makefile
#
# -------------------------------------------------------------------
#
# Copyright (C) 2011 Matthew Danish.
#
# All rights reserved. Please see enclosed LICENSE file for details.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# - Redistributions of source code must retain the above copyright
#   notice, this list of conditions and the following disclaimer.
#
# - Redistributions in binary form must reproduce the above copyright
#   notice, this list of conditions and the following disclaimer in
#   the documentation and/or other materials provided with the
#   distribution.
#
# - Neither the name of the author nor the names of its contributors
#   may be used to endorse or promote products derived from this
#   software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
# OF THE POSSIBILITY OF SUCH DAMAGE.

##################################################

C_FILES = init/init.c init/stub.c init/early_uart3.c init/device_id.c \
	mem/physical.c mem/virtual.c intr/interrupts.c omap3/timer.c \
	sched/process.c sched/rr.c \
	debug/log.c tests/cswitch.c tests/test_process.c
S_FILES = init/startup.S intr/table.S
PROGS = progs/idle progs/uart

IMGNAME = puppy
ADDRESS = 0x80008000
TESTS =

##################################################

include config.mk

##################################################

CFLAGS += -Iinclude
SFLAGS += -Iinclude

ifeq ($(DEBUG),1)
CFLAGS += -g -O0
else
CFLAGS += -O$(OPT)
endif
CFLAGS += $(patsubst %,-DTEST_%,$(TESTS))

LIBGCC = $(shell $(CC) -print-libgcc-file-name)

##################################################

C_OBJS = $(patsubst %.c,%.o,$(C_FILES))
S_OBJS = $(patsubst %.S,%.o,$(S_FILES))
OBJS = $(C_OBJS) $(S_OBJS)
DFILES = $(patsubst %.c,%.d,$(C_FILES)) $(patsubst %.S,%.d,$(S_FILES))
POBJS = $(patsubst %,%/program,$(PROGS))

##################################################

.PHONY: all
all: $(IMGNAME.uimg) ucmd ukermit $(IMGNAME)-nand.bin

$(IMGNAME).uimg: $(IMGNAME).bin.gz
	$(MKIMAGE) -A arm -C gzip -O linux -T kernel -d $< -a $(ADDRESS) -e $(ADDRESS) $@

$(IMGNAME)-nand.bin: $(IMGNAME).uimg u-boot/u-boot.bin util/bb_nandflash_ecc
	sh util/nand.sh $< $@ 2> /dev/null

$(IMGNAME).bin.gz: $(IMGNAME).bin
	gzip -f $<

$(IMGNAME).bin: $(IMGNAME).elf
	$(OBJCOPY) -O binary $< $@

$(IMGNAME).elf: $(OBJS) ldscripts/$(IMGNAME).ld program-map.ld
	$(LD) -T ldscripts/$(IMGNAME).ld $(OBJS) $(POBJS) $(LIBGCC) -o $@

program-map.ld: buildprograms
	nm $(POBJS) | egrep "_binary_.*_start" | awk -- '{ printf "LONG(%s);\n", $$3 }' > $@

.PHONY: buildprograms userlib
buildprograms: userlib
	for p in $(PROGS); do make -C $$p; done
userlib:
	make -C userlib

%.o: %.S
	$(CC) $(SFLAGS) -c $< -o $@

.PHONY: clean test tags cscope

clean:
	rm -f $(IMGNAME).uimg $(IMGNAME).elf $(IMGNAME).bin ucmd ukermit program-map.ld
	rm -f $(OBJS) $(DFILES)
	for p in $(PROGS); do make -C $$p clean; done
	make -C userlib clean

distclean: clean
	rm -f $(IMGNAME)-nand.bin
	rm -f cscope.files cscope.in.out cscope.po.out cscope.out TAGS tags
	(cd util; make clean)
	(cd omap-u-boot-utils; make distclean V=1)
	for p in $(PROGS); do make -C $$p distclean; done
	make -C userlib distclean

test: $(IMGNAME)-nand.bin
	@echo "***** To quit QEMU type: Ctrl-a x"
	$(QEMU) -M beagle -m 128M -nographic -mtdblock $<

tags:
	find . -name '*.[ch]' | xargs etags -o TAGS 
	find . -name '*.[ch]' | xargs ctags -o tags

cscope: cscope.files
	cscope -b -q -k

cscope.files:
	find . -name '*.[ch]' > $@

util/bb_nandflash_ecc: util/bb_nandflash_ecc.c
	(cd util; make bb_nandflash_ecc)

.PHONY: ucmd ukermit
ucmd:
	(cd omap-u-boot-utils; make ucmd V=1)
	cp omap-u-boot-utils/ucmd .

ukermit:
	(cd omap-u-boot-utils; make ukermit V=1)
	cp omap-u-boot-utils/ukermit .

-include $(DFILES)

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