#
# Copyright (c) 1994-1998, 2001 The University of Utah and the Flux Group.
# 
# This file is part of the OSKit Linux Boot Loader, which is free software,
# also known as "open source;" you can redistribute it and/or modify it under
# the terms of the GNU General Public License (GPL), version 2, as published
# by the Free Software Foundation (FSF).
# 
# The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GPL for more details.  You should have
# received a copy of the GPL along with the OSKit; see the file COPYING.  If
# not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
#

ifndef _boot_bsd_makerules_
_boot_bsd_makerules_ = yes


TARGETS = mklinuximage mklinux2 linuxboot.bin
INSTALL_TARGETS =	$(INSTALL_BINDIR)/mklinuximage \
			$(INSTALL_BINDIR)/mklinux2 \
			$(INSTALL_LIBDIR)/boot/linuxboot.bin

CLEAN_FILES += linuxboot.bin linuxboot

# Having DEBUG defined does bad things for some of this code.
DEFINES := $(filter-out -DDEBUG,$(DEFINES))

# Defines to control the gunzip code
DEFINES += -DHAVE_STRING_H -DDYN_ALLOC -Dnear=""

# Where to look for src files.
SRCDIRS += $(OSKIT_SRCDIR)/boot/linux $(OSKIT_SRCDIR)/boot

# Libraries we need to link with
LIBS = -loskit_exec -loskit_kern -loskit_c -loskit_lmm
DEPENDLIBS := $(patsubst -l%,$(OBJDIR)/lib/lib%.a,$(LIBS))

# Some of the Linux files want to include <linux/...> headers.
INCDIRS += $(OSKIT_SRCDIR)/oskit/c $(OSKIT_SRCDIR)/boot

all: $(TARGETS)
install: $(INSTALL_TARGETS)
prepare::

# Include the makefile containing the generic rules.
# This must come here since it depends on SRCDIRS and sets OBJFILES.
include $(OSKIT_SRCDIR)/GNUmakerules


# Make sure the boot sector and setup header come first.
OBJFILES :=	i16_bootsect.o i16_setup.o \
		$(filter-out i16_bootsect.o i16_setup.o,$(OBJFILES))

# Need --traditional due to '#' style comments in assembly code
i16_bootsect.o: i16_bootsect.S
	$(OSKIT_QUIET_MAKE_INFORM) "Assembling $<"
	$(CC) --traditional -c -o $@ $(OSKIT_ASFLAGS) $(ASFLAGS) -MD \
	      -x assembler-with-cpp $<


## How to build the binary Linux boot image prefix
linuxboot.bin: $(OBJFILES) $(DEPENDLIBS)
	$(LD) $(LDFLAGS) $(OSKIT_LDFLAGS) \
		-Ttext 0 -oformat binary -o linuxboot.bin $(OBJFILES) $(LIBS)

# For now, just use the already built one that we know works!
# We avoid potential CVS clobberation by uuencoding this.
#linuxboot.bin: linuxboot.bin.uue
#	uudecode $<

# For debugging - something you can 'nm' and 'gdb'.
linuxboot: $(OBJFILES) $(DEPENDLIBS)
	$(LD) $(LDFLAGS) $(OSKIT_LDFLAGS) \
		-Ttext 0 -o $@ $(OBJFILES) $(LIBS)

.PHONY: mklinuximage
mklinuximage:
	chmod +x $@

.PHONY: mklinux2
mklinux2:
	chmod +x $@

$(INSTALL_LIBDIR)/boot/%: %
	-mkdir -p $(@D)
	$(INSTALL_PROGRAM) $< $@


endif