Makefile

   1 # Copyright 2007 Google Inc.
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #      http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14 #
  15 # $Id: Makefile 110392 2008-02-26 00:59:11Z nil $
  16
  17 CFLAGS = -Wall -O2 -s
  18
  19 .SUFFIXES: .bin
  20
  21 all: sgabios.bin
  22
  23 sgabios.bin: sgabios.S version.h
  24
  25 version.h: Makefile sgabios.S
  26         @echo '#define BIOS_BUILD_DATE "'`date -u +%D`'"' >version.h
  27         @echo '#define BIOS_FULL_DATE "'`date -u`'"' >>version.h
  28         @echo '#define BIOS_BUILD_HOST "'`echo $$LOGNAME@$$HOSTNAME`'"' >>version.h
  29
  30 .S.bin:
  31         $(CC) -c $(CFLAGS) $*.S -o $*.o
  32         $(LD) -Ttext 0x0 -s --oformat binary $*.o -o $*.bin
  33
  34 clean:
  35         $(RM) *.s *.o *.bin *.srec *.com version.h