1# $FreeBSD$
2#
3# Makefile for building PICOBSD kernels and running crunchgen
4#
5# Needs SRC pointing to the source tree,
6# MY_TREE ponting to my tree
7# BUILDDIR pointing to the build directory
8# PICO_OBJ pointing to the object directory
9# When building a kernel, also need ${name} from the environment
10# and CONFIG may indicate an alternate config program
11
12BINMAKE?=make
13SRC?=/usr/src
14CONFIG?=config
15MODULES?=-DNO_MODULES	# do not build them as a default
16KERNCONF ?= PICOBSD
17
18# caller will set MODULES to empty if modules are needed.
19# Indeed, it can be used to specify other Makefile options as well.
20
21# These 3 variables determine where the kernel is built.
22# If config were smart enough, we could place the config
23# file in some other place than ${SRC}/sys/${TARGET_ARCH}/conf, but
24# at the moment (Oct.2001) this is not possible yet.
25CONF=${SRC}/sys/${TARGET_ARCH}/conf
26#CONF=${BUILDDIR}/conf         # XXX does not work yet
27CONFFILE=PICOBSD-${name}
28
29# We can, however, compile the kernel somewhere else
30#COMPILE=${CONF}/../compile/${CONFFILE}
31COMPILE=${BUILDDIR}/${CONFFILE}
32
33KERNFILE=${COMPILE}/kernel
34
35${BUILDDIR}/kernel: ${KERNFILE}
36	cp -p ${.OODATE} ${.TARGET}
37	strip ${.TARGET}
38	strip --remove-section=.note --remove-section=.comment ${.TARGET}
39
40${KERNFILE}: ${COMPILE} do_a_make_in_the_kernel_directory_anyways
41
42do_a_make_in_the_kernel_directory_anyways:
43	(cd ${COMPILE}; ${BINMAKE} KERNEL=kernel ${MODULES} )
44
45${COMPILE}: ${CONF}/${CONFFILE}
46	(cd ${CONF}; ${CONFIG} -d ${COMPILE} ${CONFFILE}; \
47	cd ${COMPILE}; ${BINMAKE} KERNEL=kernel ${MODULES} depend )
48
49${CONF}/${CONFFILE}: ${KERNCONF}
50	# -mkdir -p ${CONF}		# XXX not needed yet.
51	cp ${.OODATE} ${.TARGET}
52	[ -f PICOBSD.hints ] && cp PICOBSD.hints ${CONF}/
53
54# This part creates crunch1.conf and crunch.mk from crunch.conf
55${BUILDDIR}/crunch.mk: ${BUILDDIR}/crunch1.conf
56	-(cd ${BUILDDIR}/crunch ; \
57	crunchgen -p ${PICO_OBJ} -o -m ${.TARGET} ${.OODATE} )
58
59${BUILDDIR}/crunch1.conf: ${MY_TREE}/crunch.conf
60	(cd ${BUILDDIR}/crunch ; cat ${.OODATE} | \
61	    sed -e "s@/usr/src@${SRC}@" -e "s+@__CWD__@+${MY_TREE}+" > ${.TARGET} )
62