79 lines
1.8 KiB
Makefile
79 lines
1.8 KiB
Makefile
|
# Copyright 2010 Google Inc.
|
||
|
|
#
|
||
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
# you may not use this file except in compliance with the License.
|
||
|
|
# You may obtain a copy of the License at
|
||
|
|
#
|
||
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
#
|
||
|
|
# Unless required by applicable law or agreed to in writing, software
|
||
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
# See the License for the specific language governing permissions and
|
||
|
|
# limitations under the License.
|
||
|
|
#
|
||
|
|
# $Id$
|
||
|
|
|
||
|
|
BUILD_DATE = \"$(shell date -u)\"
|
||
|
|
BUILD_SHORT_DATE = \"$(shell date -u +%D)\"
|
||
|
|
BUILD_HOST = \"$(shell hostname)\"
|
||
|
|
BUILD_USER = \"$(shell whoami)\"
|
||
|
|
|
||
|
|
CFLAGS := -Wall -Os -m32 -nostdlib
|
||
|
|
|
||
|
|
ASFLAGS := $(CFLAGS)
|
||
|
|
ASFLAGS += -DBUILD_DATE="$(BUILD_DATE)"
|
||
|
|
ASFLAGS += -DBUILD_SHORT_DATE="$(BUILD_SHORT_DATE)"
|
||
|
|
ASFLAGS += -DBUILD_HOST="$(BUILD_HOST)"
|
||
|
|
ASFLAGS += -DBUILD_USER="$(BUILD_USER)"
|
||
|
|
|
||
|
|
LDSCRIPT := rom16.ld
|
||
|
|
LDFLAGS := -T $(LDSCRIPT) -nostdlib
|
||
|
|
OBJCOPY := objcopy
|
||
|
|
|
||
|
|
ASRCS = sgabios.S
|
||
|
|
|
||
|
|
CSRCS =
|
||
|
|
|
||
|
|
SRCS = $(CSRCS) $(ASRCS)
|
||
|
|
|
||
|
|
OBJS = ${CSRCS:.c=.o} ${ASRCS:.S=.o}
|
||
|
|
INCS = ${CSRCS:.c=.h} ${ASRCS:.S=.h}
|
||
|
|
|
||
|
|
PROGS = sgabios.bin csum8
|
||
|
|
|
||
|
|
.SUFFIXES: .bin .elf
|
||
|
|
.PHONY: buildinfo
|
||
|
|
|
||
|
|
all: $(PROGS)
|
||
|
|
|
||
|
|
sgabios.bin: sgabios.elf
|
||
|
|
$(OBJCOPY) -O binary $< $@
|
||
|
|
./csum8 $@
|
||
|
|
|
||
|
|
sgabios.elf: .depend $(OBJS) $(LDSCRIPT) csum8
|
||
|
|
$(LD) $(LDFLAGS) $(OBJS) -o $@
|
||
|
|
|
||
|
|
csum8: csum8.c
|
||
|
|
$(CC) -Wall -O2 -o $@ $<
|
||
|
|
|
||
|
|
sgabios.o: buildinfo
|
||
|
|
|
||
|
|
|
||
|
|
buildinfo:
|
||
|
|
touch sgabios.S
|
||
|
|
clean:
|
||
|
|
$(RM) $(PROGS) $(OBJS) *.elf *.srec *.com version.h
|
||
|
|
|
||
|
|
.depend:: $(INCS) $(SRCS) Makefile
|
||
|
|
$(RM) .depend
|
||
|
|
$(CPP) -M $(CFLAGS) $(SRCS) >.tmpdepend && mv .tmpdepend .depend
|
||
|
|
|
||
|
|
ifeq (.depend, $(wildcard .depend))
|
||
|
|
include .depend
|
||
|
|
else
|
||
|
|
# if no .depend file existed, add a make clean to the end of building .depend
|
||
|
|
.depend::
|
||
|
|
$(MAKE) clean
|
||
|
|
endif
|