dos/Makefile

   1 TMPFILE = $(shell mktemp /tmp/gcc_ok.XXXXXX)
   2
   3 gcc_ok   = $(shell tmpf=$(TMPFILE); if gcc $(1) -c -x c /dev/null -o $$tmpf 2>/dev/null; \
   4                    then echo $(1); else echo $(2); fi; rm -f $$tmpf)
   5
   6 M32       := $(call gcc_ok,-m32,) $(call gcc_ok,-ffreestanding,) \
   7         $(call gcc_ok,-fno-stack-protector,) \
   8         $(call gcc_ok,-fno-top-level-reorder,$(call gcc_ok,-fno-unit-at-a-time))
   9
  10 CC       = gcc
  11 LD       = ld -m elf_i386
  12 OBJCOPY  = objcopy
  13 OPTFLAGS = -g -Os -march=i386 -falign-functions=0 -falign-jumps=0 -falign-loops=0 -fomit-frame-pointer
  14 INCLUDES = -include code16.h -I. -I.. -I../libfat -I ../libinstaller
  15 CFLAGS   = $(M32) -mregparm=3 -DREGPARM=3 -W -Wall -msoft-float $(OPTFLAGS) $(INCLUDES)
  16 LDFLAGS  = -T com16.ld
  17 AR       = ar
  18 RANLIB   = ranlib
  19 LIBGCC  := $(shell $(CC) --print-libgcc)
  20
  21 SRCS     = syslinux.c \
  22            ../syslxmod.c ../bootsect_bin.c ../ldlinux_bin.c ../mbr_bin.c \
  23            $(wildcard ../libfat/*.c)
  24 OBJS     = crt0.o $(patsubst %.c,%.o,$(notdir $(SRCS)))
  25 LIBOBJS  = conio.o memcpy.o memset.o  skipatou.o atou.o malloc.o free.o \
  26            argv.o printf.o __divdi3.o __udivmoddi4.o
  27
  28 .SUFFIXES: .c .o .i .s .S .elf .com
  29
  30 VPATH = .:..:../libfat:../libinstaller
  31
  32 TARGETS = syslinux.com
  33
  34 all: $(TARGETS)
  35
  36 tidy:
  37         -rm -f *.o *.i *.s *.a .*.d *.elf
  38
  39 clean: tidy
  40
  41 spotless: clean
  42         -rm -f *~ $(TARGETS)
  43
  44 installer:
  45
  46 syslinux.elf: $(OBJS) libcom.a
  47         $(LD) $(LDFLAGS) -o $@ $^
  48
  49 libcom.a: $(LIBOBJS)
  50         -rm -f $@
  51         $(AR) cq $@ $^
  52         $(RANLIB) $@
  53
  54 syslinux.com: syslinux.elf
  55         $(OBJCOPY) -O binary $< $@
  56
  57 %.o: %.c
  58         $(CC) -Wp,-MT,$@,-MD,.$@.d $(CFLAGS) -c -o $@ $<
  59 %.i: %.c
  60         $(CC) $(CFLAGS) -E -o $@ $<
  61 %.s: %.c
  62         $(CC) $(CFLAGS) -S -o $@ $<
  63 %.o: %.S
  64         $(CC) -Wp,-MT,$@,-MD,.$@.d $(CFLAGS) -D__ASSEMBLY__ -c -o $@ $<
  65 %.s: %.S
  66         $(CC) $(CFLAGS) -E -o $@ $<
  67
  68 -include .*.d