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bsd.kernobj.mk revision 1.9 
      1 #	$NetBSD: bsd.kernobj.mk,v 1.9 2002/04/26 15:02:02 lukem Exp $
      2 
      3 # KERNSRCDIR	Is the location of the top of the kernel src.
      4 # 		It defaults to ${NETBSDSRCDIR}/sys
      5 # 
      6 # KERNARCHDIR	Is the location of the machine dependent kernel
      7 # 		sources.  It defaults to arch/${MACHINE}
      8 # 		
      9 # KERNCONFDIR	Is where the configuration files for kernels are
     10 # 		found; default is ${KERNSRCDIR}/${KERNARCHDIR}/conf.
     11 # 
     12 # KERNOBJDIR	Is the kernel build directory.  The kernel GENERIC for
     13 # 		instance will be compiled in ${KERNOBJDIR}/GENERIC.
     14 # 		The default value is
     15 # 		${KERNSRCDIR}/${KERNARCHDIR}/compile
     16 #
     17 #		If MAKEOBJDIRPREFIX or _SRC_TOP_OBJ is set than the value will
     18 #		be either 
     19 #
     20 #		${MAKEOBJDIRPREFIX}${KERNSRCDIR}/${KERNARCHDIR}/compile
     21 #
     22 #		or
     23 #
     24 #		${_SRC_TOP_OBJ_}/sys/${KERNARCHDIR}/compile
     25 #
     26 #		with MAKEOBJDIRPREFIX taking priority over _SRC_TOP_OBJ_ 
     27 # 
     28 
     29 .include <bsd.own.mk>
     30 
     31 KERNSRCDIR?=	${NETBSDSRCDIR}/sys
     32 # just incase ${MACHINE} is not always correct
     33 KERNARCHDIR?=	arch/${MACHINE}
     34 
     35 #
     36 # XXX It's ugly but it does what we need here. If making objects use the above
     37 # rules for trying to figure out a KERNOBJDIR.
     38 #
     39 # When coming back through here in rules (such as building kernels for
     40 # a release), check which vars we're using and which directory base has been
     41 # made in the previous obj stage to figure out which one to expose.
     42 #
     43 # All cases will fall through to the ${KERNSRCDIR}/${KERNARCHDIR}/compile case
     44 # if nothing ends up setting this.
     45 .if make(obj) || \
     46     (defined(MAKEOBJDIRPREFIX) && exists(${MAKEOBJDIRPREFIX}${KERNSRCDIR}/${KERNARCHDIR}/compile)) || \
     47     (defined(_SRC_TOP_OBJ_) && exists(${_SRC_TOP_OBJ_}/sys/${KERNARCHDIR}/compile))
     48 .if defined (MAKEOBJDIRPREFIX)
     49 KERNOBJDIR?=    ${MAKEOBJDIRPREFIX}${KERNSRCDIR}/${KERNARCHDIR}/compile
     50 .else
     51 .if defined(_SRC_TOP_OBJ_) && ${_SRC_TOP_OBJ_} != ""
     52 KERNOBJDIR?=	${_SRC_TOP_OBJ_}/sys/${KERNARCHDIR}/compile
     53 .endif
     54 .endif
     55 .endif
     56 
     57 KERNOBJDIR?=	${KERNSRCDIR}/${KERNARCHDIR}/compile
     58 
     59 KERNCONFDIR?=	${KERNSRCDIR}/${KERNARCHDIR}/conf
     60