Imported from /home/lorry/working-area/delta_bmake-tarball/bmake.tar.gz.HEADbmakemaster

1 files changed, 328 insertions, 0 deletions

diff --git a/mk/gendirdeps.mk b/mk/gendirdeps.mk
new file mode 100644
index 0000000..5742c6f
--- /dev/null
+++ b/mk/gendirdeps.mk
@@ -0,0 +1,328 @@
+# $Id: gendirdeps.mk,v 1.21 2013/03/28 20:01:05 sjg Exp $
+
+# Copyright (c) 2010-2013, Juniper Networks, Inc.
+# All rights reserved.
+# 
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions 
+# are met: 
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer. 
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.  
+# 
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+
+#
+# This makefile [re]generates ${.MAKE.DEPENDFILE}
+#
+
+.include <install-new.mk>
+
+# Assumptions:
+#	RELDIR is the relative path from ${SRCTOP} to ${_CURDIR}
+#		(SRCTOP is ${SB}/src)
+#	_CURDIR is the absolute version of ${.CURDIR}
+#	_OBJDIR is the absolute version of ${.OBJDIR}
+#	_objroot is realpath of ${_OBJTOP} without ${MACHINE}
+#		this may be different from _OBJROOT if $SB/obj is a
+#		symlink to another filesystem.
+#		_objroot must be a prefix match for _objtop
+
+.MAIN: all
+
+# keep this simple
+.MAKE.MODE = compat
+
+all:
+
+_CURDIR ?= ${.CURDIR}
+_OBJDIR ?= ${.OBJDIR}
+_OBJTOP ?= ${OBJTOP}
+_OBJROOT ?= ${OBJROOT:U${_OBJTOP}}
+.if ${_OBJROOT:M*/}
+_slash=/
+.else
+_slash=
+.endif
+_objroot ?= ${_OBJROOT:tA}${_slash}
+
+_this = ${.PARSEDIR}/${.PARSEFILE}
+
+# remember what to make
+_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T}
+
+# We do _not_ want to read our own output!
+.MAKE.DEPENDFILE = /dev/null
+
+# caller should have set this
+META_FILES ?= ${.MAKE.META.FILES}
+
+.if !empty(META_FILES)
+
+.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER)
+# so we can compare below
+.-include <${_DEPENDFILE}>
+# yes, I mean :U with no value
+_DIRDEPS := ${DIRDEPS:U:O:u}
+.endif
+
+META_FILES := ${META_FILES:T:O:u}
+.export META_FILES
+
+# pickup customizations
+.-include "local.gendirdeps.mk"
+
+# these are actually prefixes that we'll skip
+# they should all be absolute paths
+SKIP_GENDIRDEPS ?=
+.if !empty(SKIP_GENDIRDEPS)
+_skip_gendirdeps = egrep -v '^(${SKIP_GENDIRDEPS:O:u:ts|})' |
+.else
+_skip_gendirdeps =
+.endif
+
+# this (*should* be set in meta.sys.mk) 
+# is the script that extracts what we want.
+META2DEPS ?= ${.PARSEDIR}/meta2deps.sh
+META2DEPS := ${META2DEPS}
+
+.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" && ${DEBUG_GENDIRDEPS:Uno:Mmeta2d*} != ""
+_time = time
+_sh_x = sh -x
+_py_d = -ddd
+.else
+_time =
+_sh_x =
+_py_d =
+.endif
+
+.if ${META2DEPS:E} == "py"
+# we can afford to do this all the time.
+DPDEPS ?= no
+META2DEPS_CMD = ${_time} ${PYTHON} ${META2DEPS} ${_py_d} \
+	-R ${RELDIR} -H ${HOST_TARGET} \
+	${M2D_OBJROOTS:O:u:@o@-O $o@}
+
+.if ${DPDEPS:tl} != "no"
+META2DEPS_CMD += -D ${DPDEPS}
+.endif
+
+M2D_OBJROOTS += ${OBJTOP} ${_OBJROOT} ${_objroot}
+.if defined(SB_OBJROOT)
+M2D_OBJROOTS += ${SB_OBJROOT}
+.endif
+.if ${.MAKE.DEPENDFILE_PREFERENCE:U${.MAKE.DEPENDFILE}:M*.${MACHINE}} == ""
+# meta2deps.py only groks objroot
+# so we need to give it what it expects
+# and tell it not to add machine qualifiers
+META2DEPS_ARGS += MACHINE=none
+.endif
+.if defined(SB_BACKING_SB) 
+META2DEPS_CMD += -S ${SB_BACKING_SB}/src 
+M2D_OBJROOTS += ${SB_BACKING_SB}/${SB_OBJPREFIX}
+.endif
+META2DEPS_FILTER = sed 's,^src:,${SRCTOP}/,;s,^\([^/]\),${OBJTOP}/\1,' |
+.elif ${META2DEPS:E} == "sh"
+META2DEPS_CMD = ${_time} ${_sh_x} ${META2DEPS} \
+	OBJTOP=${_objtop} SB_OBJROOT=${_objroot}
+.else
+META2DEPS_CMD ?= ${META2DEPS}
+.endif
+
+# we are only interested in the dirs
+# sepecifically those we read something from.
+# we canonicalize them to keep things simple
+# if we are using a split-fs sandbox, it gets a little messier.
+_objtop := ${_OBJTOP:tA}
+dir_list != cd ${_OBJDIR} && \
+	${META2DEPS_CMD} MACHINE=${MACHINE} \
+	SRCTOP=${SRCTOP} RELDIR=${RELDIR} CURDIR=${_CURDIR} \
+	${META2DEPS_ARGS} \
+	${META_FILES:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \
+	sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,'
+
+.if ${dir_list:M*ERROR\:*} != ""
+.warning ${dir_list:tW:C,.*(ERROR),\1,}
+.warning Skipping ${_DEPENDFILE:S,${SRCTOP}/,,}
+# we are not going to update anything
+.else
+
+.if !empty(DPADD)
+_nonlibs := ${DPADD:T:Nlib*:N*include}
+.if !empty(_nonlibs)
+ddep_list =
+.for f in ${_nonlibs:@x@${DPADD:M*/$x}@}
+.if exists($f.dirdep)
+ddep_list += $f.dirdep
+.elif exists(${f:H}.dirdep)
+ddep_list += ${f:H}.dirdep
+.else
+dir_list += ${f:H:tA}
+.endif
+.endfor
+.if !empty(ddep_list)
+ddeps != cat ${ddep_list:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \
+        sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,;s,\.${MACHINE}$$,,'
+
+.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != ""
+.info ${RELDIR}: raw_dir_list='${dir_list}'
+.info ${RELDIR}: ddeps='${ddeps}'
+.endif
+dir_list += ${ddeps}
+.endif
+.endif
+.endif
+
+# DIRDEPS represent things that had to have been built first
+# so they should all be undir OBJTOP.
+# Note that ${_OBJTOP}/bsd/include/machine will get reported 
+# to us as $SRCTOP/bsd/sys/$MACHINE_ARCH/include meaning we
+# will want to visit bsd/include
+# so we add 
+# ${"${dir_list:M*bsd/sys/${MACHINE_ARCH}/include}":?bsd/include:}
+# to GENDIRDEPS_DIR_LIST_XTRAS
+_objtops = ${OBJTOP} ${_OBJTOP} ${_obtop}
+_objtops := ${_objtops:O:u}
+dirdep_list = \
+	${_objtops:@o@${dir_list:M$o*/*:C,$o[^/]*/,,}@} \
+	${GENDIRDEPS_DIR_LIST_XTRAS}
+
+# sort longest first
+M2D_OBJROOTS := ${M2D_OBJROOTS:O:u:[-1..1]}
+
+# anything we use from an object dir other than ours
+# needs to be qualified with its .<machine> suffix
+# (we used the pseudo machine "host" for the HOST_TARGET).
+skip_ql= ${SRCTOP}* ${_objtops:@o@$o*@}
+.for o in ${M2D_OBJROOTS:${skip_ql:${M_ListToSkip}}}
+# we need := so only skip_ql to this point applies
+ql :=	${dir_list:${skip_ql:${M_ListToSkip}}:M$o*/*/*:C,$o([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,}
+qualdir_list += ${ql}
+skip_ql+= $o*
+.endfor
+
+dirdep_list := ${dirdep_list:O:u}
+qualdir_list := ${qualdir_list:N*.${MACHINE}:O:u}
+
+DIRDEPS = \
+	${dirdep_list:N${RELDIR}:N${RELDIR}/*} \
+	${qualdir_list:N${RELDIR}.*:N${RELDIR}/*}
+
+# We only consider things below $RELDIR/ if they have a makefile.
+# This is the same test that _DIRDEPS_USE applies.
+# We have do a double test with dirdep_list as it _may_ contain 
+# qualified dirs - if we got anything from a stage dir.
+# qualdir_list we know are all qualified.
+# It would be nice do peform this check for all of DIRDEPS,
+# but we cannot assume that all of the tree is present, 
+# in fact we can only assume that RELDIR is.
+DIRDEPS += \
+	${dirdep_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/$d/$m):?$d:${exists(${SRCTOP}/${d:R}/$m):?$d:}}@}@} \
+	${qualdir_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/${d:R}/$m):?$d:}@}@}
+
+DIRDEPS := ${DIRDEPS:${GENDIRDEPS_FILTER:UNno:ts:}:O:u}
+
+.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != ""
+.info ${RELDIR}: M2D_OBJROOTS=${M2D_OBJROOTS}
+.info ${RELDIR}: dir_list='${dir_list}'
+.info ${RELDIR}: dirdep_list='${dirdep_list}'
+.info ${RELDIR}: qualdir_list='${qualdir_list}'
+.info ${RELDIR}: SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS}'
+.info ${RELDIR}: GENDIRDEPS_FILTER='${GENDIRDEPS_FILTER}'
+.info ${RELDIR}: FORCE_DPADD='${DPADD}'
+.info ${RELDIR}: DIRDEPS='${DIRDEPS}'
+.endif
+
+# SRC_DIRDEPS is for checkout logic
+src_dirdep_list = \
+	${dir_list:M${SRCTOP}/*:S,${SRCTOP}/,,}
+
+SRC_DIRDEPS = \
+	${src_dirdep_list:N${RELDIR}:N${RELDIR}/*:C,(/h)/.*,,}
+
+SRC_DIRDEPS := ${SRC_DIRDEPS:${GENDIRDEPS_SRC_FILTER:UN/*:ts:}:O:u}
+
+# if you want to capture SRC_DIRDEPS in .MAKE.DEPENDFILE put
+# SRC_DIRDEPS_FILE = ${_DEPENDFILE} 
+# in local.gendirdeps.mk
+.if ${SRC_DIRDEPS_FILE:Uno:tl} != "no"
+ECHO_SRC_DIRDEPS = echo 'SRC_DIRDEPS = \'; echo '${SRC_DIRDEPS:@d@	$d \\${.newline}@}'; echo;
+
+.if ${SRC_DIRDEPS_FILE:T} == ${_DEPENDFILE:T}
+_include_src_dirdeps = ${ECHO_SRC_DIRDEPS}
+.else
+all: ${SRC_DIRDEPS_FILE}
+.if !target(${SRC_DIRDEPS_FILE})
+${SRC_DIRDEPS_FILE}: ${META_FILES} ${_this} ${META2DEPS}
+	@(${ECHO_SRC_DIRDEPS}) > $@
+.endif
+.endif
+.endif
+_include_src_dirdeps ?= 
+
+all:	${_DEPENDFILE}
+
+# if this is going to exist it would be there by now
+.if !exists(.depend)
+CAT_DEPEND = /dev/null
+.endif
+CAT_DEPEND ?= .depend
+
+.if !empty(_DIRDEPS) && ${DIRDEPS} != ${_DIRDEPS}
+# we may have changed a filter
+.PHONY: ${_DEPENDFILE}
+.endif
+
+# 'cat .depend' should suffice, but if we are mixing build modes
+# .depend may contain things we don't want.
+# The sed command at the end of the stream, allows for the filters
+# to output _{VAR} tokens which we will turn into proper ${VAR} references.
+${_DEPENDFILE}: ${CAT_DEPEND:M.depend} ${META_FILES:O:u:@m@${exists($m):?$m:}@} ${_this} ${META2DEPS}
+	@(echo '# Autogenerated - do NOT edit!'; echo; \
+	echo 'DEP_RELDIR := $${_PARSEDIR:S,$${SRCTOP}/,,}'; echo; \
+	echo 'DIRDEPS = \'; \
+	echo '${DIRDEPS:@d@	$d \\${.newline}@}'; echo; \
+	${_include_src_dirdeps} \
+	echo '.include <dirdeps.mk>'; \
+	echo; \
+	echo '.if $${DEP_RELDIR} == $${_DEP_RELDIR}'; \
+	echo '# local dependencies - needed for -jN in clean tree'; \
+	[ -s ${CAT_DEPEND} ] && { grep : ${CAT_DEPEND} | grep -v '[/\\]'; }; \
+	echo '.endif' ) | sed 's,_\([{(]\),$$\1,g' > $@.new${.MAKE.PID}
+	@${InstallNew}; InstallNew -s $@.new${.MAKE.PID}
+
+.endif				# meta2deps failed
+.elif !empty(SUBDIR)
+
+DIRDEPS := ${SUBDIR:S,^,${RELDIR}/,:O:u}
+
+all:	${_DEPENDFILE}
+
+${_DEPENDFILE}: ${MAKEFILE} ${_this}
+	@(echo '# Autogenerated - do NOT edit!'; echo; \
+	echo 'DEP_RELDIR := $${_PARSEDIR:S,$${SRCTOP}/,,}'; echo; \
+	echo 'DIRDEPS = \'; \
+	echo '${DIRDEPS:@d@	$d \\${.newline}@}'; echo; \
+	echo '.include <dirdeps.mk>'; \
+	echo ) | sed 's,_\([{(]\),$$\1,g' > $@.new
+	@${InstallNew}; InstallNew $@.new
+
+.else
+
+# nothing to do
+all ${_DEPENDFILE}:
+
+.endif
+${_DEPENDFILE}: .PRECIOUS