######################################################################
##                
## Copyright (C) 1999-2010,  Karlsruhe University
## Copyright (C) 2008-2009,  Volkmar Uhlig, IBM Corporation
##                
## File path:     Makefile.in
## Description:   
##                
## Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions
## are met:
## 1. Redistributions of source code must retain the above copyright
##    notice, this list of conditions and the following disclaimer.
## 2. Redistributions in binary form must reproduce the above copyright
##    notice, this list of conditions and the following disclaimer in the
##    documentation and/or other materials provided with the distribution.
## 
## THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
## ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
## FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
## OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
## HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
## LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
## OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
## SUCH DAMAGE.
##                
## $Id$
##                
######################################################################

srcdir=		.
top_srcdir=	../..
top_builddir=	../..

include $(top_srcdir)/Mk/l4.base.mk

CFLAGS+=	-fno-builtin
KICKSTART_LINKBASE?=	00800000

PROGRAM=	kickstart
PROGRAM_DEPS=	$(top_builddir)/lib/io/libio.a $(srcdir)/Makefile.in \
		$(PROGRAM_DEPS_$(ARCH))
LIBS+=		$(LIBS_$(ARCH))
SRCS=		crt0-$(ARCH).S kickstart.cc kipmgr.cc elf.cc lib.cc bootinfo.cc \
		$(ARCH).cc $(SRCS_$(ARCH))
OBJS+=		$(OBJS_$(ARCH))
SRCS_MBI=	mbi.cc mbi-$(ARCH).cc mbi-loader.cc
SRCS_FDT=	fdt.cc fdt-$(ARCH).cc fdt-loader.cc
IO32FILES=	$(IO32FILES_$(ARCH))
GENFILES=	$(GENFILES_$(ARCH))

LDFLAGS+=	-Ttext=$(KICKSTART_LINKBASE) \
		-L$(srcdir) -Tkickstart.ld
CFLAGS+=	-DREVISION="`cat .revision`"
LGCC=


##
## IA32 specifics
##
SRCS_ia32=		$(SRCS_MBI)
LIBS_ia32=		-lio
CFLAGS_kickstart_ia32:= $(CFLAGS) 

##
## AMD64 specifics
##
SRCS_amd64=		$(SRCS_MBI) 
OBJS_amd64+=		elf64.o bootinfo64.o
LIBS_amd64=		-lio32
CFLAGS_kickstart_amd64:=$(patsubst -m64, -m32, $(CFLAGS)) -O2  
CPPFLAGS_amd64= 	-I$(top_srcdir)/lib/io -I$(srcdir) \
			-DALSO_ELF64 -DALSO_BOOTINFO64
LDFLAGS_amd64=		-b elf32-i386 --oformat elf32-i386 \
			-N -m elf_i386 -L.
IO32FILES_amd64=	get_hex.cc print.cc $(ARCH).cc
PROGRAM_DEPS_amd64=	$(top_builddir)/util/kickstart/libio32.a

##
## PowerPC specifics
##
SRCS_powerpc=		$(SRCS_FDT) 
LIBS_powerpc=		-lio -ll4 -lgcc
LDFLAGS_powerpc=	
CFLAGS_kickstart_powerpc:= $(CFLAGS) 
MKIMAGE=		mkimage
POST_ALL_powerpc=	kickstart.uimage

##
## Override CFLAGS
##
CFLAGS=			$(CFLAGS_kickstart_$(ARCH))


pre-all:	.revision copy_io32files $(GENFILES)
post-clean:
	rm -f .revision $(GENFILES)
	rm -f $(IO32FILES:.cc=32.o) $(IO32FILES:.cc=32.cc) libio32.a
post-all: $(POST_ALL_$(ARCH))

.revision:	$(SRCS)
	@$(ECHO_MSG) Making  `echo $(srcdir)/ | sed s,^$(top_srcdir)/*,,`$@
	@(cd $(srcdir) ; grep "\$$[I][d]:" $(SRCS)) | \
	  $(AWK) '{sum += $$5} END {print sum}' > $@

copy_io32files: $(top_srcdir)/lib/io/$(IO32FILES:.cc)
	@for F in $(IO32FILES:.cc=); do \
	  test $${F}32.cc -nt $(top_srcdir)/lib/io/$${F}.cc || \
	    cp $(top_srcdir)/lib/io/$${F}.cc $${F}32.cc; \
	done

libio32.a:	$(IO32FILES:.cc=32.o)
	@$(ECHO_MSG) Linking `echo $(srcdir)/$@ | sed s,^$(top_srcdir)/,,`
	$(AR) cru $@ $(IO32FILES:.cc=32.o)
	$(RANLIB) $@

elf32.o: $(srcdir)/elf.cc
	$(CC) -x c++ $(CPPFLAGS) $(CXXFLAGS) -DELF_32on64 -c $(srcdir)/elf.cc -o $@

elf64.o: $(srcdir)/elf.cc
	$(CC) -x c++ $(CPPFLAGS) $(CXXFLAGS) -DELF_64on32 -c $(srcdir)/elf.cc -o $@

bootinfo32.o: $(srcdir)/bootinfo.cc
	$(CC) -x c++ $(CPPFLAGS) $(CXXFLAGS) -DBOOTINFO_32on64 -c $(srcdir)/bootinfo.cc -o $@

bootinfo64.o: $(srcdir)/bootinfo.cc
	$(CC) -x c++ $(CPPFLAGS) $(CXXFLAGS) -DBOOTINFO_64on32 -c $(srcdir)/bootinfo.cc -o $@


kickstart.uimage: kickstart
	$(OBJCOPY) -O binary $< $<.bin
	$(MKIMAGE) -A ppc -O linux -T kernel -C none -a $(KICKSTART_LINKBASE) -e $(KICKSTART_LINKBASE) -n "L4Ka Kickstart" -d $<.bin $@


include $(top_srcdir)/Mk/l4.prog.mk