Differential D12840 Diff 34640 head/share/mk/src.sys.obj.mk

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head/share/mk/src.sys.obj.mk

	# $FreeBSD$			# $FreeBSD$
				#
				# Early setup of MAKEOBJDIR
				#
				# Default format is: /usr/obj/usr/src/[${TARGET}.${TARGET_ARCH}/]bin/sh
				# MAKEOBJDIRPREFIX is /usr/obj
				# OBJROOT is /usr/obj/usr/src/
				# OBJTOP is /usr/obj/usr/src/[${TARGET}.${TARGET_ARCH}/]
				# MAKEOBJDIR is /usr/obj/usr/src/[${TARGET}.${TARGET_ARCH}/]bin/sh
				#
				# MAKEOBJDIRPREFIX will override the default pattern above and internally
				# set MAKEOBJDIR. If OBJROOT is set then MAKEOBJDIRPREFIX is rooted inside
				# of there.
				#
				# If MK_UNIFIED_OBJDIR is no then OBJROOT will always match OBJTOP.
				#
				# If .MAKE.LEVEL == 0 then the TARGET.TARGET_ARCH is potentially added on.
				# If .MAKE.LEVEL > 0 and MAKEOBJDIRPREFIX is set then it will not get
				# TARGET.TARGET_ARCH added in as it assumes that MAKEOBJDIRPREFIX is
				# nested in the existing OBJTOP with TARGET.TARGET_ARCH in it.
				#

				_default_makeobjdirprefix?= /usr/obj
	_default_makeobjdir= $${.CURDIR:S,^$${SRCTOP},$${OBJTOP},}			_default_makeobjdir= $${.CURDIR:S,^$${SRCTOP},$${OBJTOP},}

	.if empty(OBJROOT) \|\| ${.MAKE.LEVEL} == 0			.include <bsd.mkopt.mk>
	.if defined(MAKEOBJDIRPREFIX) && !empty(MAKEOBJDIRPREFIX)
				.if ${.MAKE.LEVEL} == 0 \|\| empty(OBJROOT)
				.if ${MK_UNIFIED_OBJDIR} == "no"
				# Fall back to historical behavior.
				# We always want to set a default MAKEOBJDIRPREFIX...
				MAKEOBJDIRPREFIX?= ${_default_makeobjdirprefix}
				# but don't enforce TARGET.TARGET_ARCH unless we're at the top-level directory.
				.if ${.CURDIR} == ${SRCTOP} && \
				!(defined(TARGET) && defined(TARGET_ARCH) && \
				${MACHINE} == ${TARGET} && ${MACHINE_ARCH} == ${TARGET_ARCH} && \
				!defined(CROSS_BUILD_TESTING))
				MAKEOBJDIRPREFIX:= ${MAKEOBJDIRPREFIX}${TARGET:D/${TARGET}.${TARGET_ARCH}}
				.endif
				.endif # ${MK_UNIFIED_OBJDIR} == "no"

				.if !empty(MAKEOBJDIRPREFIX)
	# put things approximately where they want			# put things approximately where they want
	OBJROOT:= ${MAKEOBJDIRPREFIX}${SRCTOP}/			OBJROOT:= ${MAKEOBJDIRPREFIX}${SRCTOP}/
	MAKEOBJDIRPREFIX=			MAKEOBJDIRPREFIX=
	.export MAKEOBJDIRPREFIX			.export MAKEOBJDIRPREFIX
	.endif			.endif
	.if empty(MAKEOBJDIR)			.if empty(MAKEOBJDIR)
	# OBJTOP set below			# OBJTOP set below
	MAKEOBJDIR= ${_default_makeobjdir}			MAKEOBJDIR= ${_default_makeobjdir}
	# export but do not track			# export but do not track
	.export-env MAKEOBJDIR			.export-env MAKEOBJDIR
	# Expand for our own use			# Expand for our own use
	MAKEOBJDIR:= ${MAKEOBJDIR}			MAKEOBJDIR:= ${MAKEOBJDIR}
	.endif			.endif
				# SB documented at http://www.crufty.net/sjg/docs/sb-tools.htm
	.if !empty(SB)			.if !empty(SB)
	SB_OBJROOT?= ${SB}/obj/			SB_OBJROOT?= ${SB}/obj/
	# this is what we use below			# this is what we use below
	OBJROOT?= ${SB_OBJROOT}			OBJROOT?= ${SB_OBJROOT}
	.endif			.endif
	OBJROOT?= /usr/obj${SRCTOP}/			OBJROOT?= ${_default_makeobjdirprefix}${SRCTOP}/
	.if ${OBJROOT:M*/} != ""			.if ${OBJROOT:M*/} != ""
	OBJROOT:= ${OBJROOT:H:tA}/			OBJROOT:= ${OBJROOT:H:tA}/
	.else			.else
	OBJROOT:= ${OBJROOT:H:tA}/${OBJROOT:T}			OBJROOT:= ${OBJROOT:H:tA}/${OBJROOT:T}
	.endif			.endif
				# Must export since OBJDIR will dynamically be based on it
	.export OBJROOT SRCTOP			.export OBJROOT SRCTOP
	.endif			.endif

	.if 0			.if ${MK_UNIFIED_OBJDIR} == "yes"
				OBJTOP:= ${OBJROOT}${TARGET:D${TARGET}.${TARGET_ARCH}:U${MACHINE}.${MACHINE_ARCH}}
				.else
				# TARGET.TARGET_ARCH handled in OBJROOT already.
				OBJTOP:= ${OBJROOT:H}
				.endif # ${MK_UNIFIED_OBJDIR} == "yes"

				# Wait to validate MAKEOBJDIR until OBJTOP is set.
	.if defined(MAKEOBJDIR)			.if defined(MAKEOBJDIR)
	.if ${MAKEOBJDIR:M/*} == ""			.if ${MAKEOBJDIR:M/*} == ""
	.error Cannot use MAKEOBJDIR=${MAKEOBJDIR}${.newline}Unset MAKEOBJDIR to get default: MAKEOBJDIR='${_default_makeobjdir}'			.error Cannot use MAKEOBJDIR=${MAKEOBJDIR}${.newline}Unset MAKEOBJDIR to get default: MAKEOBJDIR='${_default_makeobjdir}'
	.endif			.endif
	.endif			.endif

				# Fixup OBJROOT/OBJTOP if using MAKEOBJDIRPREFIX but leave it alone
				# for DIRDEPS_BUILD which really wants to know the absolute top at
				# all times. This intenionally comes after adding TARGET.TARGET_ARCH
				# so that is truncated away for nested objdirs. This logic also
				# will not trigger if the OBJROOT block above unsets MAKEOBJDIRPREFIX.
				.if !empty(MAKEOBJDIRPREFIX) && ${MK_DIRDEPS_BUILD} == "no"
				OBJTOP:= ${MAKEOBJDIRPREFIX}${SRCTOP}
				OBJROOT:= ${OBJTOP}/
	.endif			.endif

				# Assign this directory as .OBJDIR if possible
				.if ${MK_AUTO_OBJ} == "no"
				# The expected OBJDIR already exists, set it as .OBJDIR.
				.if !empty(MAKEOBJDIRPREFIX) && exists(${MAKEOBJDIRPREFIX}${.CURDIR})
				.OBJDIR: ${MAKEOBJDIRPREFIX}${.CURDIR}
				.elif exists(${MAKEOBJDIR})
				.OBJDIR: ${MAKEOBJDIR}
				# Special case to work around bmake bug. If the top-level .OBJDIR does not yet
				# exist and MAKEOBJDIR is passed into environment and yield a blank value,
				# bmake will incorrectly set .OBJDIR=${SRCTOP}/ rather than the expected
				# ${SRCTOP} to match ${.CURDIR}.
				.elif ${MAKE_VERSION} <= 20170720 && \
				${.CURDIR} == ${SRCTOP} && ${.OBJDIR} == ${SRCTOP}/
				.OBJDIR: ${.CURDIR}
				.endif
				.endif # ${MK_AUTO_OBJ} == "no"