3 # Makefile for building PICOBSD kernels and running crunchgen
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
15 MODULES?=-DNO_MODULES # do not build them as a default
18 # caller will set MODULES to empty if modules are needed.
19 # Indeed, it can be used to specify other Makefile options as well.
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.
25 CONF=${SRC}/sys/${TARGET_ARCH}/conf
26 #CONF=${BUILDDIR}/conf # XXX does not work yet
27 CONFFILE=PICOBSD-${name}
29 # We can, however, compile the kernel somewhere else
30 #COMPILE=${CONF}/../compile/${CONFFILE}
31 COMPILE=${BUILDDIR}/${CONFFILE}
33 KERNFILE=${COMPILE}/kernel
35 ${BUILDDIR}/kernel: ${KERNFILE}
36 cp -p ${.OODATE} ${.TARGET}
38 strip --remove-section=.note --remove-section=.comment ${.TARGET}
40 ${KERNFILE}: ${COMPILE} do_a_make_in_the_kernel_directory_anyways
42 do_a_make_in_the_kernel_directory_anyways:
43 (cd ${COMPILE}; ${BINMAKE} KERNEL=kernel ${MODULES} )
45 ${COMPILE}: ${CONF}/${CONFFILE}
46 (cd ${CONF}; ${CONFIG} -d ${COMPILE} ${CONFFILE}; \
47 cd ${COMPILE}; ${BINMAKE} KERNEL=kernel ${MODULES} depend )
49 ${CONF}/${CONFFILE}: ${KERNCONF}
50 # -mkdir -p ${CONF} # XXX not needed yet.
51 cp ${.OODATE} ${.TARGET}
52 [ -f PICOBSD.hints ] && cp PICOBSD.hints ${CONF}/
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} )
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} )