makefile.24

open source bios with linux platform, very good and can be reused.

CC	=	gcc
LD	=	ld

KERNEL	=	/usr/src/linux
#KERNEL	=	/lib/modules/`uname -r`/build

ARCH	=	$(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/)

ifeq ($(KERNEL)/.config,$(wildcard $(KERNEL)/.config))
include $(KERNEL)/.config
endif

CFLAGS	=	-D__KERNEL__ -I${KERNEL}/include  -Wall	\
		-Wstrict-prototypes -Wno-trigraphs -O2	\
		-fomit-frame-pointer -fno-common	\
		-fno-strict-aliasing -pipe -DMODULE

# comment this if you don't want debugging information
CFLAGS += -DDEBUG

# see if we need module versions
ifdef CONFIG_MODVERSIONS
CFLAGS += -DMODVERSIONS
endif

ifeq ($(ARCH),alpha)
CFLAGS	+=	-mno-fp-regs -ffixed-8 -mcpu=ev5 -Wa,-mev6
LDFLAGS  =	-m elf64alpha
endif

ifeq ($(ARCH),sparc64)
CFLAGS	+=	-mno-fpu -mtune=ultrasparc -mmedlow -ffixed-g4 \
		-fcall-used-g5 -fcall-used-g7
LDFLAGS	 =	-m elf_sparc64
endif

ifeq ($(ARCH),i386)
CFLAGS	+=	-mpreferred-stack-boundary=2 -march=i586
LDFLAGS  =	-m elf_i386
endif

ifeq ($(ARCH), x86_64)
CFLAGS	+=	-mno-red-zone -mcmodel=kernel -fno-reorder-blocks \
		-finline-limit=2000 -fno-strength-reduce 
LDFLAGS	 =	-m elf_x86_64
endif

ifeq ($(ARCH),ia64)
CFLAGS  +=	-ffixed-r13 -mfixed-range=f10-f15,f32-f127 \
		-falign-functions=32
LDFLAGS  =      -m elf64_ia64
endif

.SUFFIXES: .o .c .h

TARGET	=	bios.o
OBJS	=	bios_core.o flashchips.o pcisets.o \
		filesystem.o procfs.o programming.o

all: $(TARGET) comp

$(TARGET): $(OBJS)
	$(LD) $(LDFLAGS) -r -o $(TARGET) $(OBJS)

clean:
	-rm -f $(TARGET) $(OBJS) comp *.o

.c.o:
	$(CC) $(INCLUDES) -c $(INCDIRS) $(CFLAGS) $(X_CFLAGS) $(DEBUGFLAGS) $*.c -o $@

comp:	comp.c
	$(CC) comp.c -O2 -o comp
	strip comp

bios_core.o:	bios_core.c bios.h pcisets.h flashchips.h programming.h
filesystem.o:	filesystem.c bios.h pcisets.h flashchips.h programming.h
flashchips.o:	flashchips.c bios.h flashchips.h
pcisets.o:	pcisets.c bios.h pcisets.h flashchips.h programming.h
procfs.o:	procfs.c bios.h pcisets.h flashchips.h programming.h
programming.o:	programming.c bios.h pcisets.h flashchips.h programming.h