1 # $Id: dirdeps.mk,v 1.106 2020/07/11 16:25:17 sjg Exp $
3 # Copyright (c) 2010-2020, Simon J. Gerraty
4 # Copyright (c) 2010-2018, Juniper Networks, Inc.
7 # Redistribution and use in source and binary forms, with or without
8 # modification, are permitted provided that the following conditions
10 # 1. Redistributions of source code must retain the above copyright
11 # notice, this list of conditions and the following disclaimer.
12 # 2. Redistributions in binary form must reproduce the above copyright
13 # notice, this list of conditions and the following disclaimer in the
14 # documentation and/or other materials provided with the distribution.
16 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 # Much of the complexity here is for supporting cross-building.
29 # If a tree does not support that, simply using plain Makefile.depend
30 # should provide sufficient clue.
31 # Otherwise the recommendation is to use Makefile.depend.${MACHINE}
34 # Note: this file gets multiply included.
35 # This is what we do with DIRDEPS
38 # This is a list of directories - relative to SRCTOP, it is
39 # normally only of interest to .MAKE.LEVEL 0.
40 # In some cases the entry may be qualified with a .<machine>
41 # or .<target_spec> suffix (see TARGET_SPEC_VARS below),
42 # for example to force building something for the pseudo
43 # machines "host" or "common" regardless of current ${MACHINE}.
45 # All unqualified entries end up being qualified with .${TARGET_SPEC}
46 # and partially qualified (if TARGET_SPEC_VARS has multiple
47 # entries) are also expanded to a full .<target_spec>.
48 # The _DIRDEP_USE target uses the suffix to set TARGET_SPEC
49 # correctly when visiting each entry.
51 # The fully qualified directory entries are used to construct a
52 # dependency graph that will drive the build later.
54 # Also, for each fully qualified directory target, we will search
55 # using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional
56 # dependencies. We use Makefile.depend (default value for
57 # .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to
58 # distinguish them from others.
60 # Before each Makefile.depend file is read, we set
61 # DEP_RELDIR to be the RELDIR (path relative to SRCTOP) for
62 # its directory, and DEP_MACHINE etc according to the .<target_spec>
63 # represented by the suffix of the corresponding target.
65 # Since each Makefile.depend file includes dirdeps.mk, this
66 # processing is recursive and results in .MAKE.LEVEL 0 learning the
67 # dependencies of the tree wrt the initial directory (_DEP_RELDIR).
70 # Indicates whether .MAKE.LEVEL 0 builds anything:
71 # if "no" sub-makes are used to build everything,
72 # if "yes" sub-makes are only used to build for other machines.
73 # It is best to use "no", but this can require fixing some
74 # makefiles to not do anything at .MAKE.LEVEL 0.
77 # The default value is just MACHINE, and for most environments
78 # this is sufficient. The _DIRDEP_USE target actually sets
79 # both MACHINE and TARGET_SPEC to the suffix of the current
80 # target so that in the general case TARGET_SPEC can be ignored.
82 # If more than MACHINE is needed then sys.mk needs to decompose
83 # TARGET_SPEC and set the relevant variables accordingly.
84 # It is important that MACHINE be included in and actually be
85 # the first member of TARGET_SPEC_VARS. This allows other
86 # variables to be considered optional, and some of the treatment
87 # below relies on MACHINE being the first entry.
88 # Note: TARGET_SPEC cannot contain any '.'s so the target
89 # triple used by compiler folk won't work (directly anyway).
93 # # Always list MACHINE first,
94 # # other variables might be optional.
95 # TARGET_SPEC_VARS = MACHINE TARGET_OS
96 # .if ${TARGET_SPEC:Uno:M*,*} != ""
97 # _tspec := ${TARGET_SPEC:S/,/ /g}
98 # MACHINE := ${_tspec:[1]}
99 # TARGET_OS := ${_tspec:[2]}
101 # # We need to stop that TARGET_SPEC affecting any submakes
102 # # and deal with MACHINE=${TARGET_SPEC} in the environment.
104 # # export but do not track
105 # .export-env TARGET_SPEC
106 # .export ${TARGET_SPEC_VARS}
107 # .for v in ${TARGET_SPEC_VARS:O:u}
113 # # make sure we know what TARGET_SPEC is
114 # # as we may need it to find Makefile.depend*
115 # TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
117 # The following variables can influence the initial DIRDEPS
118 # computation with regard to the TARGET_SPECs that will be
120 # Most should also be considered by init.mk
122 # ONLY_TARGET_SPEC_LIST
123 # Defines a list of TARGET_SPECs for which the current
124 # directory can be built.
125 # If ALL_MACHINES is defined, we build for all the
126 # TARGET_SPECs listed.
129 # As for ONLY_TARGET_SPEC_LIST but only specifies
132 # NOT_TARGET_SPEC_LIST
133 # A list of TARGET_SPECs for which the current
134 # directory should not be built.
137 # A list of MACHINEs the current directory should not be
141 .if !target(bootstrap) && (make(bootstrap) || \
142 make(bootstrap-this) || \
143 make(bootstrap-recurse) || \
144 make(bootstrap-empty))
145 # disable most of below
149 # touch this at your peril
150 _DIRDEP_USE_LEVEL?= 0
151 .if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL}
152 # only the first instance is interested in all this
154 .if !target(_DIRDEP_USE)
156 # do some setup we only need once
157 _CURDIR ?= ${.CURDIR}
158 _OBJDIR ?= ${.OBJDIR}
160 now_utc = ${%s:L:gmtime}
161 .if !defined(start_utc)
162 start_utc := ${now_utc}
165 .if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != ""
166 # This little trick let's us do
168 # mk -f dirdeps.mk some/dir.${TARGET_SPEC}
171 ${.TARGETS:Nall}: all
172 DIRDEPS := ${.TARGETS:M*[/.]*}
173 # so that -DNO_DIRDEPS works
174 DEP_RELDIR := ${DIRDEPS:[1]:R}
175 # this will become DEP_MACHINE below
176 TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//}
177 .if ${TARGET_MACHINE:N*/*} == ""
178 TARGET_MACHINE := ${MACHINE}
180 # disable DIRDEPS_CACHE as it does not like this trick
181 MK_DIRDEPS_CACHE = no
184 # make sure we get the behavior we expect
185 .MAKE.SAVE_DOLLARS = no
187 # make sure these are empty to start with
190 # If TARGET_SPEC_VARS is other than just MACHINE
191 # it should be set by sys.mk or similar by now.
192 # TARGET_SPEC must not contain any '.'s.
193 TARGET_SPEC_VARS ?= MACHINE
194 # this is what we started with
195 TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
196 # this is what we mostly use below
197 DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,}
198 # make sure we have defaults
199 .for v in ${TARGET_SPEC_VARS}
203 .if ${TARGET_SPEC_VARS:[#]} > 1
204 # Ok, this gets more complex (putting it mildly).
205 # In order to stay sane, we need to ensure that all the build_dirs
206 # we compute below are fully qualified wrt DEP_TARGET_SPEC.
207 # The makefiles may only partially specify (eg. MACHINE only),
208 # so we need to construct a set of modifiers to fill in the gaps.
209 .if ${MAKE_VERSION} >= 20170130
210 _tspec_x := ${TARGET_SPEC_VARS:range}
211 .elif ${TARGET_SPEC_VARS:[#]} > 10
212 # seriously? better have jot(1) or equivalent to produce suitable sequence
213 _tspec_x := ${${JOT:Ujot} ${TARGET_SPEC_VARS:[#]}:L:sh}
215 # we can provide the sequence ourselves
216 _tspec_x := ${1 2 3 4 5 6 7 8 9 10:L:[1..${TARGET_SPEC_VARS:[#]}]}
218 # this handles unqualified entries
219 M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC};
220 # there needs to be at least one item missing for these to make sense
221 .for i in ${_tspec_x:[2..-1]}
222 _tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,}
223 _tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,}
224 M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i};
227 # A harmless? default.
231 .if !defined(.MAKE.DEPENDFILE_PREFERENCE)
232 # .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater?
233 # you really want this set by sys.mk or similar
234 .MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T}
235 .if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}"
236 .if ${TARGET_SPEC} != ${MACHINE}
237 .MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE}
239 .MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}
243 _default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T}
244 _machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*}
246 # for machine specific dependfiles we require ${MACHINE} to be at the end
247 # also for the sake of sanity we require a common prefix
248 .if !defined(.MAKE.DEPENDFILE_PREFIX)
249 # knowing .MAKE.DEPENDFILE_PREFIX helps
250 .if !empty(_machine_dependfiles)
251 .MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R}
253 .MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T}
258 # this is how we identify non-machine specific dependfiles
259 N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}}
261 .endif # !target(_DIRDEP_USE)
263 # First off, we want to know what ${MACHINE} to build for.
264 # This can be complicated if we are using a mixture of ${MACHINE} specific
265 # and non-specific Makefile.depend*
267 # if we were included recursively _DEP_TARGET_SPEC should be valid.
268 .if empty(_DEP_TARGET_SPEC)
269 # we may or may not have included a dependfile yet
270 .if defined(.INCLUDEDFROMFILE)
271 _last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*}
273 _last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]}
275 .if ${_debug_reldir:U0}
276 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}'
279 .if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == ""
280 # this is all we have to work with
281 DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}}
282 _DEP_TARGET_SPEC := ${DEP_TARGET_SPEC}
284 _DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E}
286 .if !empty(_last_dependfile)
287 # record that we've read dependfile for this
288 _dirdeps_checked.${_CURDIR}.${TARGET_SPEC}:
292 # by now _DEP_TARGET_SPEC should be set, parse it.
293 .if ${TARGET_SPEC_VARS:[#]} > 1
294 # we need to parse DEP_MACHINE may or may not contain more info
295 _tspec := ${_DEP_TARGET_SPEC:S/,/ /g}
296 .for i in ${_tspec_x}
297 DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]}
299 .for v in ${TARGET_SPEC_VARS:O:u}
305 DEP_MACHINE := ${_DEP_TARGET_SPEC}
308 # reset each time through
311 # the first time we are included the _DIRDEP_USE target will not be defined
312 # we can use this as a clue to do initialization and other one time things.
313 .if !target(_DIRDEP_USE)
314 # make sure this target exists
315 dirdeps: beforedirdeps .WAIT
318 # We normally expect to be included by Makefile.depend.*
319 # which sets the DEP_* macros below.
320 DEP_RELDIR ?= ${RELDIR}
322 # this can cause lots of output!
323 # set to a set of glob expressions that might match RELDIR
326 # remember the initial value of DEP_RELDIR - we test for it below.
327 _DEP_RELDIR := ${DEP_RELDIR}
331 # DIRDEPS_CACHE can be very handy for debugging.
332 # Also if repeatedly building the same target,
333 # we can avoid the overhead of re-computing the tree dependencies.
334 MK_DIRDEPS_CACHE ?= no
335 BUILD_DIRDEPS_CACHE ?= no
338 .if ${MK_DIRDEPS_CACHE} == "yes"
339 # this is where we will cache all our work
340 DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.}
343 .if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != ""
348 .if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != ""
354 # pickup customizations
355 # as below you can use !target(_DIRDEP_USE) to protect things
356 # which should only be done once.
357 .-include <local.dirdeps.mk>
359 .if !target(_DIRDEP_USE)
360 # things we skip for host tools
363 NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}}
365 # things we always skip
366 # SKIP_DIRDEPS allows for adding entries on command line.
367 SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS}
368 SKIP_DIR.host += ${SKIP_HOSTDIR}
370 DEP_SKIP_DIR = ${SKIP_DIR} \
371 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \
372 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \
373 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \
374 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@}
377 NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}}
379 .if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS)
381 .elif defined(WITHOUT_DIRDEPS_BELOW)
385 .if defined(NO_DIRDEPS)
386 # confine ourselves to the original dir and below.
387 DIRDEPS_FILTER += M${_DEP_RELDIR}*
388 .elif defined(NO_DIRDEPS_BELOW)
389 DIRDEPS_FILTER += M${_DEP_RELDIR}
392 # this is what we run below
393 DIRDEP_MAKE ?= ${.MAKE}
394 DIRDEP_DIR ?= ${.TARGET:R}
396 # we suppress SUBDIR when visiting the leaves
397 # we assume sys.mk will set MACHINE_ARCH
398 # you can add extras to DIRDEP_USE_ENV
399 # if there is no makefile in the target directory, we skip it.
400 _DIRDEP_USE: .USE .MAKE
401 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \
402 test -s ${.TARGET:R}/$$m || continue; \
403 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \
404 ${DIRDEP_USE_PRELUDE} \
405 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \
406 TARGET_SPEC=${.TARGET:E} \
407 MACHINE=${.TARGET:E} \
408 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \
413 # this is how you limit it to only the machines we have been built for
415 .if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST)
416 .if !empty(ALL_MACHINE_LIST)
417 # ALL_MACHINE_LIST is the list of all legal machines - ignore anything else
418 _machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo
420 _machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo
422 _only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u}
424 _only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U}
427 .if empty(_only_machines)
428 # we must be boot-strapping
429 _only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}}
432 .else # ! ALL_MACHINES
433 # if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that.
434 # Note that ONLY_TARGET_SPEC_LIST should be fully qualified.
435 # if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST
436 # otherwise DEP_MACHINE is it - so DEP_MACHINE will match.
437 _only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*}
438 .if empty(_only_machines)
439 _only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}}
443 .if !empty(NOT_MACHINE_LIST)
444 _only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}}
446 .if !empty(NOT_TARGET_SPEC_LIST)
447 # we must first qualify
448 _dm := ${DEP_MACHINE}
449 _only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,}
450 DEP_MACHINE := ${_dm}
451 _only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}}
454 _only_machines := ${_only_machines:O:u}
456 # make sure we have a starting place?
460 .if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW)
461 .if ${MK_DIRDEPS_CACHE} == "yes"
463 # just ensure this exists
466 M_oneperline = @x@\\${.newline} $$x@
468 .if ${BUILD_DIRDEPS_CACHE} == "no"
469 .if !target(dirdeps-cached)
470 # we do this via sub-make
473 # ignore anything but these
474 .MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}*
476 dirdeps: dirdeps-cached
477 dirdeps-cached: ${DIRDEPS_CACHE} .MAKE
478 @echo "${TRACER}Using ${DIRDEPS_CACHE}"
479 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \
480 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no
482 # these should generally do
483 BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE}
484 BUILD_DIRDEPS_TARGETS ?= ${.TARGETS}
486 # we need the .meta file to ensure we update if
487 # any of the Makefile.depend* changed.
488 # We do not want to compare the command line though.
489 ${DIRDEPS_CACHE}: .META .NOMETA_CMP
490 +@{ echo '# Autogenerated - do NOT edit!'; echo; \
491 echo 'BUILD_DIRDEPS=no'; echo; \
492 echo '.include <dirdeps.mk>'; echo; \
494 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \
495 DIRDEPS="${DIRDEPS}" \
496 TARGET_SPEC=${TARGET_SPEC} \
497 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \
498 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \
499 .MAKE.DEPENDFILE=.none \
500 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \
501 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \
502 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \
503 mv ${.TARGET}.new ${.TARGET}
506 .elif !target(_count_dirdeps)
507 # we want to capture the dirdeps count in the cache
509 _count_dirdeps: .NOMETA
510 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}'; } >&3
513 .elif !make(dirdeps) && !target(_count_dirdeps)
514 beforedirdeps: _count_dirdeps
515 _count_dirdeps: .NOMETA
516 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`"
521 .if ${BUILD_DIRDEPS} == "yes"
523 # the rest is done repeatedly for every Makefile.depend we read.
524 # if we are anything but the original dir we care only about the
525 # machine type we were included for..
527 .if ${DEP_RELDIR} == "."
528 _this_dir := ${SRCTOP}
530 _this_dir := ${SRCTOP}/${DEP_RELDIR}
533 # on rare occasions, there can be a need for extra help
534 _dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc
535 .-include <${_dep_hack}>
536 .-include <${_dep_hack:R}.options>
538 .if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC}
540 _machines := ${DEP_MACHINE}
542 # this is the machine list we actually use below
543 _machines := ${_only_machines}
545 .if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == ""
546 # we need to build this guy's dependencies for host as well.
547 .if ${DEP_MACHINE:Nhost*} == ""
548 _machines += ${DEP_MACHINE}
554 _machines := ${_machines:O:u}
557 .if ${TARGET_SPEC_VARS:[#]} > 1
558 # we need to tweak _machines
559 _dm := ${DEP_MACHINE}
560 # apply the same filtering that we do when qualifying DIRDEPS.
561 # M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.'
562 # Again we expect that any already qualified machines are fully qualified.
563 _machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,}
564 DEP_MACHINE := ${_dm}
565 _machines := ${_machines:O:u}
568 # reset each time through
571 .if ${DEP_RELDIR} == ${_DEP_RELDIR}
572 # pickup other machines for this dir if necessary
573 .if ${BUILD_AT_LEVEL0:Uyes} == "no"
574 _build_dirs += ${_machines:@m@${_CURDIR}.$m@}
576 _build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@}
577 .if ${DEP_TARGET_SPEC} == ${TARGET_SPEC}
578 # pickup local dependencies now
579 .if ${MAKE_VERSION} < 20160220
589 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}'
590 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}'
594 # these we reset each time through as they can depend on DEP_MACHINE
595 DEP_DIRDEPS_FILTER = \
596 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \
597 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \
599 .if empty(DEP_DIRDEPS_FILTER)
601 DEP_DIRDEPS_FILTER = U
604 # this is what we start with
605 __depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@}
607 # some entries may be qualified with .<machine>
608 # the :M*/*/*.* just tries to limit the dirs we check to likely ones.
609 # the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd
610 __qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@}
611 __unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}}
613 .if ${DEP_RELDIR} == ${_DEP_RELDIR}
614 # if it was called out - we likely need it.
615 __hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \
616 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@}
617 __qual_depdirs += ${__hostdpadd}
621 .info depdirs=${__depdirs}
622 .info qualified=${__qual_depdirs}
623 .info unqualified=${__unqual_depdirs}
626 # _build_dirs is what we will feed to _DIRDEP_USE
628 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \
629 ${__qual_depdirs:N*.host} \
630 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \
631 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@}
633 # qualify everything now
634 _build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u}
636 .endif # empty DIRDEPS
638 _build_all_dirs += ${_build_dirs}
639 _build_all_dirs := ${_build_all_dirs:O:u}
641 # Normally if doing make -V something,
642 # we do not want to waste time chasing DIRDEPS
643 # but if we want to count the number of Makefile.depend* read, we do.
644 .if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == ""
645 .if !empty(_build_all_dirs)
646 .if ${BUILD_DIRDEPS_CACHE} == "yes"
647 x!= echo; { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; } >&3
648 # guard against _new_dirdeps being too big for a single command line
649 _new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@}
650 .if !empty(_new_dirdeps)
652 x!= echo; { echo; echo "dirdeps: \\"; \
653 for x in $$_new_dirdeps; do echo " $$x \\"; done; echo; \
654 for x in $$_new_dirdeps; do echo "$$x: _DIRDEP_USE"; done; } >&3
656 .if !empty(DEP_EXPORT_VARS)
657 # Discouraged, but there are always exceptions.
658 # Handle it here rather than explain how.
659 x!= echo; { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3
662 # this makes it all happen
663 dirdeps: ${_build_all_dirs}
665 ${_build_all_dirs}: _DIRDEP_USE
668 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs}
671 .if !empty(DEP_EXPORT_VARS)
672 .export ${DEP_EXPORT_VARS}
676 # this builds the dependency graph
677 .for m in ${_machines}
678 .if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs)
679 x!= echo; { echo; echo "${_this_dir}.$m: \\"; } >&3
681 # it would be nice to do :N${.TARGET}
682 .if !empty(__qual_depdirs)
683 .for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m}
684 .if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != ""
685 .info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q}
687 .if ${BUILD_DIRDEPS_CACHE} == "yes"
688 _cache_deps := ${_build_dirs:M*.$q}
689 .if !empty(_cache_deps)
691 x!= echo; for x in $$_cache_deps; do echo " $$x \\"; done >&3
694 ${_this_dir}.$m: ${_build_dirs:M*.$q}
699 .info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m}
701 .if ${BUILD_DIRDEPS_CACHE} == "yes"
702 _cache_deps := ${_build_dirs:M*.$m:N${_this_dir}.$m}
703 .if !empty(_cache_deps)
705 x!= echo; for x in $$_cache_deps; do echo " $$x \\"; done >&3
708 ${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m}
714 # Now find more dependencies - and recurse.
715 .for d in ${_build_all_dirs}
716 .if !target(_dirdeps_checked.$d)
722 # Note: _build_all_dirs is fully qualifed so d:R is always the directory
724 # we pass _DEP_TARGET_SPEC to tell the next step what we want
725 _DEP_TARGET_SPEC := ${d:E}
726 # some makefiles may still look at this
727 _DEP_MACHINE := ${d:E:C/,.*//}
728 # set these too in case Makefile.depend* uses them
729 .if ${TARGET_SPEC_VARS:[#]} > 1
730 _dtspec := ${_DEP_TARGET_SPEC:S/,/ /g}
731 .for i in ${_tspec_x}
732 DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]}
735 DEP_MACHINE := ${_DEP_MACHINE}
737 # Warning: there is an assumption here that MACHINE is always
738 # the first entry in TARGET_SPEC_VARS.
739 # If TARGET_SPEC and MACHINE are insufficient, you have a problem.
740 _m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]}
742 # M_dep_qual_fixes isn't geared to Makefile.depend
743 _qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}}
745 .info Looking for ${_qm}
747 # set this "just in case"
748 # we can skip :tA since we computed the path above
749 DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,}
752 .if ${_debug_reldir} && ${_qm} != ${_m}
753 .info loading ${_m} for ${d:E}
757 .-include <local.dirdeps-missing.mk>
764 .endif # BUILD_DIRDEPS
766 .elif ${.MAKE.LEVEL} > 42
767 .error You should have stopped recursing by now.
769 # we are building something
770 DEP_RELDIR := ${RELDIR}
771 _DEP_RELDIR := ${RELDIR}
772 # Since we are/should be included by .MAKE.DEPENDFILE
773 # This is a final opportunity to add/hook global rules.
774 .-include <local.dirdeps-build.mk>
776 # pickup local dependencies
777 .if ${MAKE_VERSION} < 20160220
784 # bootstrapping new dependencies made easy?
785 .if !target(bootstrap) && (make(bootstrap) || \
786 make(bootstrap-this) || \
787 make(bootstrap-recurse) || \
788 make(bootstrap-empty))
790 # if we are bootstrapping create the default
791 _want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T}
796 .elif !make(bootstrap-empty)
797 # find a Makefile.depend to use as _src
798 _src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo
800 .error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty
803 _src?= ${.MAKE.DEPENDFILE}
805 .MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g'
807 # just create Makefile.depend* for this dir
808 bootstrap-this: .NOTMAIN
809 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \
810 echo You need to build ${RELDIR} to correctly populate it.
811 .if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T}
812 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T})
814 cp ${.CURDIR}/${_src:T} ${_want}
817 # create Makefile.depend* for this dir and its dependencies
818 bootstrap: bootstrap-recurse
819 bootstrap-recurse: bootstrap-this
822 bootstrap-recurse: .NOTMAIN .MAKE
824 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \
825 test -d $$d || d=$${d%.*}; \
826 test -d $$d || continue; \
827 echo "Checking $$d for bootstrap ..."; \
828 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \
833 # create an empty Makefile.depend* to get the ball rolling.
834 bootstrap-empty: .NOTMAIN .NOMETA
835 @echo Creating empty ${RELDIR}/${_want:T}; \
836 echo You need to build ${RELDIR} to correctly populate it.
837 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want}