freebsd-skq/share/mk/dirdeps.mk
Simon J. Gerraty 312809fe7f Update dirdeps.mk and gendirdeps.mk
The env space consumed by exporting all libc's .meta files
left little room for command line,
so unexport when done.

Update dirdeps.mk to latest and add
dirdeps-targets.mk to simplify/update targets/Makefile

Makefile changes to go with Makefile.depend changes in D22494

Reviewed by:	 bdrewery
MFC after:	1 week
Sponsored by:   Juniper Networks
Differential Revision:  https://reviews.freebsd.org/D22495
2019-12-11 17:38:15 +00:00

833 lines
27 KiB
Makefile

# $FreeBSD$
# $Id: dirdeps.mk,v 1.100 2019/11/12 06:47:58 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.
# Much of the complexity here is for supporting cross-building.
# If a tree does not support that, simply using plain Makefile.depend
# should provide sufficient clue.
# Otherwise the recommendation is to use Makefile.depend.${MACHINE}
# as expected below.
# Note: this file gets multiply included.
# This is what we do with DIRDEPS
# DIRDEPS:
# This is a list of directories - relative to SRCTOP, it is
# normally only of interest to .MAKE.LEVEL 0.
# In some cases the entry may be qualified with a .<machine>
# or .<target_spec> suffix (see TARGET_SPEC_VARS below),
# for example to force building something for the pseudo
# machines "host" or "common" regardless of current ${MACHINE}.
#
# All unqualified entries end up being qualified with .${TARGET_SPEC}
# and partially qualified (if TARGET_SPEC_VARS has multiple
# entries) are also expanded to a full .<target_spec>.
# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC
# correctly when visiting each entry.
#
# The fully qualified directory entries are used to construct a
# dependency graph that will drive the build later.
#
# Also, for each fully qualified directory target, we will search
# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional
# dependencies. We use Makefile.depend (default value for
# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to
# distinguish them from others.
#
# Before each Makefile.depend file is read, we set
# DEP_RELDIR to be the RELDIR (path relative to SRCTOP) for
# its directory, and DEP_MACHINE etc according to the .<target_spec>
# represented by the suffix of the corresponding target.
#
# Since each Makefile.depend file includes dirdeps.mk, this
# processing is recursive and results in .MAKE.LEVEL 0 learning the
# dependencies of the tree wrt the initial directory (_DEP_RELDIR).
#
# BUILD_AT_LEVEL0
# Indicates whether .MAKE.LEVEL 0 builds anything:
# if "no" sub-makes are used to build everything,
# if "yes" sub-makes are only used to build for other machines.
# It is best to use "no", but this can require fixing some
# makefiles to not do anything at .MAKE.LEVEL 0.
#
# TARGET_SPEC_VARS
# The default value is just MACHINE, and for most environments
# this is sufficient. The _DIRDEP_USE target actually sets
# both MACHINE and TARGET_SPEC to the suffix of the current
# target so that in the general case TARGET_SPEC can be ignored.
#
# If more than MACHINE is needed then sys.mk needs to decompose
# TARGET_SPEC and set the relevant variables accordingly.
# It is important that MACHINE be included in and actually be
# the first member of TARGET_SPEC_VARS. This allows other
# variables to be considered optional, and some of the treatment
# below relies on MACHINE being the first entry.
# Note: TARGET_SPEC cannot contain any '.'s so the target
# triple used by compiler folk won't work (directly anyway).
#
# For example:
#
# # Always list MACHINE first,
# # other variables might be optional.
# TARGET_SPEC_VARS = MACHINE TARGET_OS
# .if ${TARGET_SPEC:Uno:M*,*} != ""
# _tspec := ${TARGET_SPEC:S/,/ /g}
# MACHINE := ${_tspec:[1]}
# TARGET_OS := ${_tspec:[2]}
# # etc.
# # We need to stop that TARGET_SPEC affecting any submakes
# # and deal with MACHINE=${TARGET_SPEC} in the environment.
# TARGET_SPEC =
# # export but do not track
# .export-env TARGET_SPEC
# .export ${TARGET_SPEC_VARS}
# .for v in ${TARGET_SPEC_VARS:O:u}
# .if empty($v)
# .undef $v
# .endif
# .endfor
# .endif
# # make sure we know what TARGET_SPEC is
# # as we may need it to find Makefile.depend*
# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
#
# The following variables can influence the initial DIRDEPS
# computation with regard to the TARGET_SPECs that will be
# built.
# Most should also be considered by init.mk
#
# ONLY_TARGET_SPEC_LIST
# Defines a list of TARGET_SPECs for which the current
# directory can be built.
# If ALL_MACHINES is defined, we build for all the
# TARGET_SPECs listed.
#
# ONLY_MACHINE_LIST
# As for ONLY_TARGET_SPEC_LIST but only specifies
# MACHINEs.
#
# NOT_TARGET_SPEC_LIST
# A list of TARGET_SPECs for which the current
# directory should not be built.
#
# NOT_MACHINE_LIST
# A list of MACHINEs the current directory should not be
# built for.
#
.if !target(bootstrap) && (make(bootstrap) || \
make(bootstrap-this) || \
make(bootstrap-recurse) || \
make(bootstrap-empty))
# disable most of below
.MAKE.LEVEL = 1
.endif
# touch this at your peril
_DIRDEP_USE_LEVEL?= 0
.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL}
# only the first instance is interested in all this
.if !target(_DIRDEP_USE)
# do some setup we only need once
_CURDIR ?= ${.CURDIR}
_OBJDIR ?= ${.OBJDIR}
now_utc = ${%s:L:gmtime}
.if !defined(start_utc)
start_utc := ${now_utc}
.endif
.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != ""
# This little trick let's us do
#
# mk -f dirdeps.mk some/dir.${TARGET_SPEC}
#
all:
${.TARGETS:Nall}: all
DIRDEPS := ${.TARGETS:M*[/.]*}
# so that -DNO_DIRDEPS works
DEP_RELDIR := ${DIRDEPS:[1]:R}
# this will become DEP_MACHINE below
TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//}
.if ${TARGET_MACHINE:N*/*} == ""
TARGET_MACHINE := ${MACHINE}
.endif
# disable DIRDEPS_CACHE as it does not like this trick
MK_DIRDEPS_CACHE = no
.endif
# make sure we get the behavior we expect
.MAKE.SAVE_DOLLARS = no
# make sure these are empty to start with
_DEP_TARGET_SPEC =
# If TARGET_SPEC_VARS is other than just MACHINE
# it should be set by sys.mk or similar by now.
# TARGET_SPEC must not contain any '.'s.
TARGET_SPEC_VARS ?= MACHINE
# this is what we started with
TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
# this is what we mostly use below
DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,}
# make sure we have defaults
.for v in ${TARGET_SPEC_VARS}
DEP_$v ?= ${$v}
.endfor
.if ${TARGET_SPEC_VARS:[#]} > 1
# Ok, this gets more complex (putting it mildly).
# In order to stay sane, we need to ensure that all the build_dirs
# we compute below are fully qualified wrt DEP_TARGET_SPEC.
# The makefiles may only partially specify (eg. MACHINE only),
# so we need to construct a set of modifiers to fill in the gaps.
.if ${MAKE_VERSION} >= 20170130
_tspec_x := ${TARGET_SPEC_VARS:range}
.elif ${TARGET_SPEC_VARS:[#]} > 10
# seriously? better have jot(1) or equivalent to produce suitable sequence
_tspec_x := ${${JOT:Ujot} ${TARGET_SPEC_VARS:[#]}:L:sh}
.else
# we can provide the sequence ourselves
_tspec_x := ${1 2 3 4 5 6 7 8 9 10:L:[1..${TARGET_SPEC_VARS:[#]}]}
.endif
# this handles unqualified entries
M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC};
# there needs to be at least one item missing for these to make sense
.for i in ${_tspec_x:[2..-1]}
_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,}
_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,}
M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i};
.endfor
.else
# A harmless? default.
M_dep_qual_fixes = U
.endif
.if !defined(.MAKE.DEPENDFILE_PREFERENCE)
# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater?
# you really want this set by sys.mk or similar
.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T}
.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}"
.if ${TARGET_SPEC} != ${MACHINE}
.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE}
.endif
.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}
.endif
.endif
_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T}
_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*}
# for machine specific dependfiles we require ${MACHINE} to be at the end
# also for the sake of sanity we require a common prefix
.if !defined(.MAKE.DEPENDFILE_PREFIX)
# knowing .MAKE.DEPENDFILE_PREFIX helps
.if !empty(_machine_dependfiles)
.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R}
.else
.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T}
.endif
.endif
# this is how we identify non-machine specific dependfiles
N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}}
.endif # !target(_DIRDEP_USE)
# First off, we want to know what ${MACHINE} to build for.
# This can be complicated if we are using a mixture of ${MACHINE} specific
# and non-specific Makefile.depend*
# if we were included recursively _DEP_TARGET_SPEC should be valid.
.if empty(_DEP_TARGET_SPEC)
# we may or may not have included a dependfile yet
.if defined(.INCLUDEDFROMFILE)
_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*}
.else
_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]}
.endif
.if ${_debug_reldir:U0}
.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}'
.endif
.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == ""
# this is all we have to work with
DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}}
_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC}
.else
_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E}
.endif
.if !empty(_last_dependfile)
# record that we've read dependfile for this
_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}:
.endif
.endif
# by now _DEP_TARGET_SPEC should be set, parse it.
.if ${TARGET_SPEC_VARS:[#]} > 1
# we need to parse DEP_MACHINE may or may not contain more info
_tspec := ${_DEP_TARGET_SPEC:S/,/ /g}
.for i in ${_tspec_x}
DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]}
.endfor
.for v in ${TARGET_SPEC_VARS:O:u}
.if empty(DEP_$v)
.undef DEP_$v
.endif
.endfor
.else
DEP_MACHINE := ${_DEP_TARGET_SPEC}
.endif
# reset each time through
_build_all_dirs =
# the first time we are included the _DIRDEP_USE target will not be defined
# we can use this as a clue to do initialization and other one time things.
.if !target(_DIRDEP_USE)
# make sure this target exists
dirdeps: beforedirdeps .WAIT
beforedirdeps:
# We normally expect to be included by Makefile.depend.*
# which sets the DEP_* macros below.
DEP_RELDIR ?= ${RELDIR}
# this can cause lots of output!
# set to a set of glob expressions that might match RELDIR
DEBUG_DIRDEPS ?= no
# remember the initial value of DEP_RELDIR - we test for it below.
_DEP_RELDIR := ${DEP_RELDIR}
.endif
# DIRDEPS_CACHE can be very handy for debugging.
# Also if repeatedly building the same target,
# we can avoid the overhead of re-computing the tree dependencies.
MK_DIRDEPS_CACHE ?= no
BUILD_DIRDEPS_CACHE ?= no
BUILD_DIRDEPS ?= yes
.if ${MK_DIRDEPS_CACHE} == "yes"
# this is where we will cache all our work
DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.}
.endif
# pickup customizations
# as below you can use !target(_DIRDEP_USE) to protect things
# which should only be done once.
.-include <local.dirdeps.mk>
.if !target(_DIRDEP_USE)
# things we skip for host tools
SKIP_HOSTDIR ?=
NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}}
# things we always skip
# SKIP_DIRDEPS allows for adding entries on command line.
SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS}
SKIP_DIR.host += ${SKIP_HOSTDIR}
DEP_SKIP_DIR = ${SKIP_DIR} \
${SKIP_DIR.${DEP_TARGET_SPEC}:U} \
${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \
${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \
${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@}
NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}}
.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS)
NO_DIRDEPS =
.elif defined(WITHOUT_DIRDEPS_BELOW)
NO_DIRDEPS_BELOW =
.endif
.if defined(NO_DIRDEPS)
# confine ourselves to the original dir and below.
DIRDEPS_FILTER += M${_DEP_RELDIR}*
.elif defined(NO_DIRDEPS_BELOW)
DIRDEPS_FILTER += M${_DEP_RELDIR}
.endif
# this is what we run below
DIRDEP_MAKE ?= ${.MAKE}
DIRDEP_DIR ?= ${.TARGET:R}
# we suppress SUBDIR when visiting the leaves
# we assume sys.mk will set MACHINE_ARCH
# you can add extras to DIRDEP_USE_ENV
# if there is no makefile in the target directory, we skip it.
_DIRDEP_USE: .USE .MAKE
@for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \
test -s ${.TARGET:R}/$$m || continue; \
echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \
${DIRDEP_USE_PRELUDE} \
MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \
TARGET_SPEC=${.TARGET:E} \
MACHINE=${.TARGET:E} \
${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \
break; \
done
.ifdef ALL_MACHINES
# this is how you limit it to only the machines we have been built for
# previously.
.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST)
.if !empty(ALL_MACHINE_LIST)
# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else
_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo
.else
_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo
.endif
_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u}
.else
_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U}
.endif
.if empty(_only_machines)
# we must be boot-strapping
_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}}
.endif
.else # ! ALL_MACHINES
# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that.
# Note that ONLY_TARGET_SPEC_LIST should be fully qualified.
# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST
# otherwise DEP_MACHINE is it - so DEP_MACHINE will match.
_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*}
.if empty(_only_machines)
_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}}
.endif
.endif
.if !empty(NOT_MACHINE_LIST)
_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}}
.endif
.if !empty(NOT_TARGET_SPEC_LIST)
# we must first qualify
_dm := ${DEP_MACHINE}
_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,}
DEP_MACHINE := ${_dm}
_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}}
.endif
# clean up
_only_machines := ${_only_machines:O:u}
# make sure we have a starting place?
DIRDEPS ?= ${RELDIR}
.endif # target
.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW)
.if ${MK_DIRDEPS_CACHE} == "yes"
# just ensure this exists
build-dirdeps:
M_oneperline = @x@\\${.newline} $$x@
.if ${BUILD_DIRDEPS_CACHE} == "no"
.if !target(dirdeps-cached)
# we do this via sub-make
BUILD_DIRDEPS = no
# ignore anything but these
.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}*
dirdeps: dirdeps-cached
dirdeps-cached: ${DIRDEPS_CACHE} .MAKE
@echo "${TRACER}Using ${DIRDEPS_CACHE}"
@MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \
dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no
# these should generally do
BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE}
BUILD_DIRDEPS_TARGETS ?= ${.TARGETS}
# we need the .meta file to ensure we update if
# any of the Makefile.depend* changed.
# We do not want to compare the command line though.
${DIRDEPS_CACHE}: .META .NOMETA_CMP
+@{ echo '# Autogenerated - do NOT edit!'; echo; \
echo 'BUILD_DIRDEPS=no'; echo; \
echo '.include <dirdeps.mk>'; echo; \
} > ${.TARGET}.new
+@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \
DIRDEPS="${DIRDEPS}" \
TARGET_SPEC=${TARGET_SPEC} \
MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \
${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \
.MAKE.DEPENDFILE=.none \
${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \
3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \
mv ${.TARGET}.new ${.TARGET}
.endif
.elif !target(_count_dirdeps)
# we want to capture the dirdeps count in the cache
.END: _count_dirdeps
_count_dirdeps: .NOMETA
@echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3
.endif
.elif !make(dirdeps) && !target(_count_dirdeps)
beforedirdeps: _count_dirdeps
_count_dirdeps: .NOMETA
@echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`"
.endif
.endif
.if ${BUILD_DIRDEPS} == "yes"
.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != ""
_debug_reldir = 1
.else
_debug_reldir = 0
.endif
.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != ""
_debug_search = 1
.else
_debug_search = 0
.endif
# the rest is done repeatedly for every Makefile.depend we read.
# if we are anything but the original dir we care only about the
# machine type we were included for..
.if ${DEP_RELDIR} == "."
_this_dir := ${SRCTOP}
.else
_this_dir := ${SRCTOP}/${DEP_RELDIR}
.endif
# on rare occasions, there can be a need for extra help
_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc
.-include <${_dep_hack}>
.-include <${_dep_hack:R}.options>
.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC}
# this should be all
_machines := ${DEP_MACHINE}
.else
# this is the machine list we actually use below
_machines := ${_only_machines}
.if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == ""
# we need to build this guy's dependencies for host as well.
.if ${DEP_MACHINE:Nhost*} == ""
_machines += ${DEP_MACHINE}
.else
_machines += host
.endif
.endif
_machines := ${_machines:O:u}
.endif
.if ${TARGET_SPEC_VARS:[#]} > 1
# we need to tweak _machines
_dm := ${DEP_MACHINE}
# apply the same filtering that we do when qualifying DIRDEPS.
# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.'
# Again we expect that any already qualified machines are fully qualified.
_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,}
DEP_MACHINE := ${_dm}
_machines := ${_machines:O:u}
.endif
# reset each time through
_build_dirs =
.if ${DEP_RELDIR} == ${_DEP_RELDIR}
# pickup other machines for this dir if necessary
.if ${BUILD_AT_LEVEL0:Uyes} == "no"
_build_dirs += ${_machines:@m@${_CURDIR}.$m@}
.else
_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@}
.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC}
# pickup local dependencies now
.if ${MAKE_VERSION} < 20160220
.-include <.depend>
.else
.dinclude <.depend>
.endif
.endif
.endif
.endif
.if ${_debug_reldir}
.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}'
.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}'
.endif
.if !empty(DIRDEPS)
# these we reset each time through as they can depend on DEP_MACHINE
DEP_DIRDEPS_FILTER = \
${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \
${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \
${DIRDEPS_FILTER:U}
.if empty(DEP_DIRDEPS_FILTER)
# something harmless
DEP_DIRDEPS_FILTER = U
.endif
# this is what we start with
__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@}
# some entries may be qualified with .<machine>
# the :M*/*/*.* just tries to limit the dirs we check to likely ones.
# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd
__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@}
__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}}
.if ${DEP_RELDIR} == ${_DEP_RELDIR}
# if it was called out - we likely need it.
__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \
${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@}
__qual_depdirs += ${__hostdpadd}
.endif
.if ${_debug_reldir}
.info depdirs=${__depdirs}
.info qualified=${__qual_depdirs}
.info unqualified=${__unqual_depdirs}
.endif
# _build_dirs is what we will feed to _DIRDEP_USE
_build_dirs += \
${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \
${__qual_depdirs:N*.host} \
${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \
${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@}
# qualify everything now
_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u}
.endif # empty DIRDEPS
_build_all_dirs += ${_build_dirs}
_build_all_dirs := ${_build_all_dirs:O:u}
# Normally if doing make -V something,
# we do not want to waste time chasing DIRDEPS
# but if we want to count the number of Makefile.depend* read, we do.
.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == ""
.if !empty(_build_all_dirs)
.if ${BUILD_DIRDEPS_CACHE} == "yes"
# guard against _build_all_dirs being too big for a single command line
# first get list of dirs that need _DIRDEP_USE
# then export that and _build_all_dirs
_new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@}
.export _new_dirdeps _build_all_dirs
x!= echo; { echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \
echo "dirdeps: \\"; \
for x in $$_build_all_dirs; do echo " $$x \\"; done; echo; \
for x in $$_new_dirdeps; do echo "$$x: _DIRDEP_USE"; done; echo; } >&3
.if !empty(DEP_EXPORT_VARS)
# Discouraged, but there are always exceptions.
# Handle it here rather than explain how.
x!= { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3; echo
.endif
.else
# this makes it all happen
dirdeps: ${_build_all_dirs}
.endif
${_build_all_dirs}: _DIRDEP_USE
.if ${_debug_reldir}
.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs}
.endif
.if !empty(DEP_EXPORT_VARS)
.export ${DEP_EXPORT_VARS}
DEP_EXPORT_VARS=
.endif
# this builds the dependency graph
.for m in ${_machines}
# it would be nice to do :N${.TARGET}
.if !empty(__qual_depdirs)
.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m}
.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != ""
.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q}
.endif
.if ${BUILD_DIRDEPS_CACHE} == "yes"
_cache_deps := ${_build_dirs:M*.$q}
.export _cache_deps
x!= echo; { echo "${_this_dir}.$m: \\"; \
for x in $$_cache_deps; do echo " $$x \\"; done; echo; } >&3
.else
${_this_dir}.$m: ${_build_dirs:M*.$q}
.endif
.endfor
.endif
.if ${_debug_reldir}
.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m}
.endif
.if ${BUILD_DIRDEPS_CACHE} == "yes"
_cache_deps := ${_build_dirs:M*.$m:N${_this_dir}.$m}
.export _cache_deps
x!= echo; { echo "${_this_dir}.$m: \\"; \
for x in $$_cache_deps; do echo " $$x \\"; done; echo; } >&3
.else
${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m}
.endif
.endfor
.endif
# Now find more dependencies - and recurse.
.for d in ${_build_all_dirs}
.if !target(_dirdeps_checked.$d)
# once only
_dirdeps_checked.$d:
.if ${_debug_search}
.info checking $d
.endif
# Note: _build_all_dirs is fully qualifed so d:R is always the directory
.if exists(${d:R})
# we pass _DEP_TARGET_SPEC to tell the next step what we want
_DEP_TARGET_SPEC := ${d:E}
# some makefiles may still look at this
_DEP_MACHINE := ${d:E:C/,.*//}
# set these too in case Makefile.depend* uses them
.if ${TARGET_SPEC_VARS:[#]} > 1
_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g}
.for i in ${_tspec_x}
DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]}
.endfor
.else
DEP_MACHINE := ${_DEP_MACHINE}
.endif
# Warning: there is an assumption here that MACHINE is always
# the first entry in TARGET_SPEC_VARS.
# If TARGET_SPEC and MACHINE are insufficient, you have a problem.
_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]}
.if !empty(_m)
# M_dep_qual_fixes isn't geared to Makefile.depend
_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}}
.if ${_debug_search}
.info Looking for ${_qm}
.endif
# set this "just in case"
# we can skip :tA since we computed the path above
DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,}
# and reset this
DIRDEPS =
.if ${_debug_reldir} && ${_qm} != ${_m}
.info loading ${_m} for ${d:E}
.endif
.include <${_m}>
.else
.-include <local.dirdeps-missing.mk>
.endif
.endif
.endif
.endfor
.endif # -V
.endif # BUILD_DIRDEPS
.elif ${.MAKE.LEVEL} > 42
.error You should have stopped recursing by now.
.else
# we are building something
DEP_RELDIR := ${RELDIR}
_DEP_RELDIR := ${RELDIR}
# Since we are/should be included by .MAKE.DEPENDFILE
# This is a final opportunity to add/hook global rules.
.-include <local.dirdeps-build.mk>
# pickup local dependencies
.if ${MAKE_VERSION} < 20160220
.-include <.depend>
.else
.dinclude <.depend>
.endif
.endif
# bootstrapping new dependencies made easy?
.if !target(bootstrap) && (make(bootstrap) || \
make(bootstrap-this) || \
make(bootstrap-recurse) || \
make(bootstrap-empty))
# if we are bootstrapping create the default
_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T}
.if exists(${_want})
# stop here
${.TARGETS:Mboot*}:
.elif !make(bootstrap-empty)
# find a Makefile.depend to use as _src
_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo
.if empty(_src)
.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty
.endif
_src?= ${.MAKE.DEPENDFILE}
.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g'
# just create Makefile.depend* for this dir
bootstrap-this: .NOTMAIN
@echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \
echo You need to build ${RELDIR} to correctly populate it.
.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T}
(cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T})
.else
cp ${.CURDIR}/${_src:T} ${_want}
.endif
# create Makefile.depend* for this dir and its dependencies
bootstrap: bootstrap-recurse
bootstrap-recurse: bootstrap-this
_mf := ${.PARSEFILE}
bootstrap-recurse: .NOTMAIN .MAKE
@cd ${SRCTOP} && \
for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \
test -d $$d || d=$${d%.*}; \
test -d $$d || continue; \
echo "Checking $$d for bootstrap ..."; \
(cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \
done
.endif
# create an empty Makefile.depend* to get the ball rolling.
bootstrap-empty: .NOTMAIN .NOMETA
@echo Creating empty ${RELDIR}/${_want:T}; \
echo You need to build ${RELDIR} to correctly populate it.
@{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want}
.endif