1 ## -----------------------------------------------------------------------
3 ## Copyright 2007-2008 H. Peter Anvin - All Rights Reserved
5 ## This program is free software; you can redistribute it and/or modify
6 ## it under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation, Inc., 53 Temple Place Ste 330,
8 ## Boston MA 02111-1307, USA; either version 2 of the License, or
9 ## (at your option) any later version; incorporated herein by reference.
11 ## -----------------------------------------------------------------------
17 TMPFILE = $(shell mktemp /tmp/gcc_ok.XXXXXX)
19 gcc_ok = $(shell tmpf=$(TMPFILE); if $(CC) $(1) -c -x c /dev/null -o $$tmpf 2>/dev/null; \
20 then echo $(1); else echo $(2); fi; rm -f $$tmpf)
22 M32 := $(call gcc_ok,-m32,) $(call gcc_ok,-ffreestanding,) $(call gcc_ok,-fno-stack-protector)
26 SFLAGS = $(M32) -march=i386
30 .SUFFIXES: .S .s .o .elf
32 all: mbr.bin gptmbr.bin
36 $(CC) $(SFLAGS) -Wa,-a=$*.lst -c -o $@ $<
39 $(LD) -T mbr.ld -e _start -o $@ $<
41 mbr.bin: mbr.elf checksize.pl
42 $(OBJCOPY) -O binary $< $@
43 $(PERL) checksize.pl mbr.bin 440
45 gptmbr.elf: gptmbr.o mbr.ld
46 $(LD) -T mbr.ld -e _start -o $@ $<
48 gptmbr.bin: gptmbr.elf checksize.pl
49 $(OBJCOPY) -O binary $< $@
50 $(PERL) checksize.pl gptmbr.bin 424