2 # $Id: dirdeps.mk,v 1.147 2021/12/14 02:09:53 sjg Exp $
4 # Copyright (c) 2010-2021, Simon J. Gerraty
5 # Copyright (c) 2010-2018, Juniper Networks, Inc.
8 # Redistribution and use in source and binary forms, with or without
9 # modification, are permitted provided that the following conditions
11 # 1. Redistributions of source code must retain the above copyright
12 # notice, this list of conditions and the following disclaimer.
13 # 2. Redistributions in binary form must reproduce the above copyright
14 # notice, this list of conditions and the following disclaimer in the
15 # documentation and/or other materials provided with the distribution.
17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 # Much of the complexity here is for supporting cross-building.
30 # If a tree does not support that, simply using plain Makefile.depend
31 # should provide sufficient clue.
32 # Otherwise the recommendation is to use Makefile.depend.${MACHINE}
35 # Note: this file gets multiply included.
36 # This is what we do with DIRDEPS
39 # This is a list of directories - relative to SRCTOP, it is
40 # normally only of interest to .MAKE.LEVEL 0.
41 # In some cases the entry may be qualified with a .<machine>
42 # or .<target_spec> suffix (see TARGET_SPEC_VARS below),
43 # for example to force building something for the pseudo
44 # machines "host" or "common" regardless of current ${MACHINE}.
46 # All unqualified entries end up being qualified with .${TARGET_SPEC}
47 # and partially qualified (if TARGET_SPEC_VARS has multiple
48 # entries) are also expanded to a full .<target_spec>.
49 # The _DIRDEP_USE target uses the suffix to set TARGET_SPEC
50 # correctly when visiting each entry.
52 # The fully qualified directory entries are used to construct a
53 # dependency graph that will drive the build later.
55 # Also, for each fully qualified directory target, we will search
56 # using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional
57 # dependencies. We use Makefile.depend (default value for
58 # .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to
59 # distinguish them from others.
61 # Before each Makefile.depend file is read, we set
62 # DEP_RELDIR to be the RELDIR (path relative to SRCTOP) for
63 # its directory, and DEP_MACHINE etc according to the .<target_spec>
64 # represented by the suffix of the corresponding target.
66 # Since each Makefile.depend file includes dirdeps.mk, this
67 # processing is recursive and results in .MAKE.LEVEL 0 learning the
68 # dependencies of the tree wrt the initial directory (_DEP_RELDIR).
70 # NOTE: given the extent of processing that DIRDEPS undergoes it
71 # is important that any variables in entries use :U to guard
72 # against surprises when undefined.
75 # The default value is just MACHINE, and for most environments
76 # this is sufficient. The _DIRDEP_USE target actually sets
77 # both MACHINE and TARGET_SPEC to the suffix of the current
78 # target so that in the general case TARGET_SPEC can be ignored.
80 # If more than MACHINE is needed then sys.mk needs to decompose
81 # TARGET_SPEC and set the relevant variables accordingly.
82 # It is important that MACHINE be included in and actually be
83 # the first member of TARGET_SPEC_VARS. This allows other
84 # variables to be considered optional, and some of the treatment
85 # below relies on MACHINE being the first entry.
86 # Note: TARGET_SPEC cannot contain any '.'s so the target
87 # triple used by compiler folk won't work (directly anyway).
91 # # Always list MACHINE first,
92 # # other variables might be optional.
93 # TARGET_SPEC_VARS = MACHINE TARGET_OS
94 # .if ${TARGET_SPEC:Uno:M*,*} != ""
95 # _tspec := ${TARGET_SPEC:S/,/ /g}
96 # MACHINE := ${_tspec:[1]}
97 # TARGET_OS := ${_tspec:[2]}
99 # # We need to stop that TARGET_SPEC affecting any submakes
100 # # and deal with MACHINE=${TARGET_SPEC} in the environment.
102 # # export but do not track
103 # .export-env TARGET_SPEC
104 # .export ${TARGET_SPEC_VARS}
105 # .for v in ${TARGET_SPEC_VARS:O:u}
111 # # make sure we know what TARGET_SPEC is
112 # # as we may need it to find Makefile.depend*
113 # TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
115 # The following variables can influence the initial DIRDEPS
116 # computation with regard to the TARGET_SPECs that will be
118 # Most should also be considered by init.mk
120 # ONLY_TARGET_SPEC_LIST
121 # Defines a list of TARGET_SPECs for which the current
122 # directory can be built.
123 # If ALL_MACHINES is defined, we build for all the
124 # TARGET_SPECs listed.
127 # As for ONLY_TARGET_SPEC_LIST but only specifies
130 # NOT_TARGET_SPEC_LIST
131 # A list of TARGET_SPECs for which the current
132 # directory should not be built.
135 # A list of MACHINEs the current directory should not be
139 # local.dirdeps.mk can add targets to this variable.
140 # They will be hooked into the build, but independent of
143 # This allows for adding TESTS to the build, such that the build
144 # if any test fails, but without the risk of introducing
145 # circular dependencies.
147 now_utc ?= ${%s:L:gmtime}
148 .if !defined(start_utc)
149 start_utc := ${now_utc}
152 .if !target(bootstrap) && (make(bootstrap) || \
153 make(bootstrap-this) || \
154 make(bootstrap-recurse) || \
155 make(bootstrap-empty))
156 # disable most of below
160 # touch this at your peril
161 _DIRDEP_USE_LEVEL?= 0
162 .if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL}
163 # only the first instance is interested in all this
165 .if !target(_DIRDEP_USE)
167 # do some setup we only need once
168 _CURDIR ?= ${.CURDIR}
169 _OBJDIR ?= ${.OBJDIR}
171 .if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != ""
172 # This little trick let's us do
174 # mk -f dirdeps.mk some/dir.${TARGET_SPEC}
177 ${.TARGETS:Nall}: all
178 DIRDEPS := ${.TARGETS:M*[/.]*}
179 # so that -DNO_DIRDEPS works
180 DEP_RELDIR := ${DIRDEPS:[1]:R}
181 # this will become DEP_MACHINE below
182 TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//}
183 .if ${TARGET_MACHINE:N*/*} == ""
184 TARGET_MACHINE := ${MACHINE}
186 # disable DIRDEPS_CACHE as it does not like this trick
187 MK_DIRDEPS_CACHE = no
190 # make sure we get the behavior we expect
191 .MAKE.SAVE_DOLLARS = no
193 # make sure these are empty to start with
196 # If TARGET_SPEC_VARS is other than just MACHINE
197 # it should be set by sys.mk or similar by now.
198 # TARGET_SPEC must not contain any '.'s.
199 TARGET_SPEC_VARS ?= MACHINE
200 # this is what we started with
201 TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
202 # this is what we mostly use below
203 DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,}
204 # make sure we have defaults
205 .for v in ${TARGET_SPEC_VARS}
209 .if ${TARGET_SPEC_VARS:[#]} > 1
210 # Ok, this gets more complex (putting it mildly).
211 # In order to stay sane, we need to ensure that all the build_dirs
212 # we compute below are fully qualified wrt DEP_TARGET_SPEC.
213 # The makefiles may only partially specify (eg. MACHINE only),
214 # so we need to construct a set of modifiers to fill in the gaps.
215 .if ${MAKE_VERSION} >= 20170130
216 _tspec_x := ${TARGET_SPEC_VARS:range}
219 _tspec_x := ${TARGET_SPEC_VARS:[#]:@x@i=1;while [ $$i -le $x ]; do echo $$i; i=$$((i + 1)); done;@:sh}
221 # this handles unqualified entries
222 M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC};
223 # there needs to be at least one item missing for these to make sense
224 .for i in ${_tspec_x:[2..-1]}
225 _tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,}
226 _tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,}
227 M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i};
229 TARGET_SPEC_VARSr := ${TARGET_SPEC_VARS:[-1..1]}
231 # A harmless? default.
235 .if !defined(.MAKE.DEPENDFILE_PREFERENCE)
236 # .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater?
237 # you really want this set by sys.mk or similar
238 .MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T}
239 .if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}"
240 .if ${TARGET_SPEC} != ${MACHINE}
241 .MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE}
243 .MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}
247 _default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T}
248 _machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*}
250 # for machine specific dependfiles we require ${MACHINE} to be at the end
251 # also for the sake of sanity we require a common prefix
252 .if !defined(.MAKE.DEPENDFILE_PREFIX)
253 # knowing .MAKE.DEPENDFILE_PREFIX helps
254 .if !empty(_machine_dependfiles)
255 .MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R}
257 .MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T}
262 # this is how we identify non-machine specific dependfiles
263 N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}}
265 .endif # !target(_DIRDEP_USE)
267 # First off, we want to know what ${MACHINE} to build for.
268 # This can be complicated if we are using a mixture of ${MACHINE} specific
269 # and non-specific Makefile.depend*
271 # if we were included recursively _DEP_TARGET_SPEC should be valid.
272 .if empty(_DEP_TARGET_SPEC)
273 DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}}
274 _DEP_TARGET_SPEC := ${DEP_TARGET_SPEC}
275 .if ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != ""
276 # record that we've read dependfile for this
277 _dirdeps_checked.${_CURDIR}.${TARGET_SPEC}:
281 # by now _DEP_TARGET_SPEC should be set, parse it.
282 .if ${TARGET_SPEC_VARS:[#]} > 1
283 # we need to parse DEP_MACHINE may or may not contain more info
284 _tspec := ${_DEP_TARGET_SPEC:S/,/ /g}
285 .for i in ${_tspec_x}
286 DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]}
288 .for v in ${TARGET_SPEC_VARS:O:u}
294 DEP_MACHINE := ${_DEP_TARGET_SPEC}
297 # reset each time through
301 # the first time we are included the _DIRDEP_USE target will not be defined
302 # we can use this as a clue to do initialization and other one time things.
303 .if !target(_DIRDEP_USE)
304 # make sure this target exists
305 dirdeps: beforedirdeps .WAIT
308 # We normally expect to be included by Makefile.depend.*
309 # which sets the DEP_* macros below.
310 DEP_RELDIR ?= ${RELDIR}
312 # this can cause lots of output!
313 # set to a set of glob expressions that might match RELDIR
316 # remember the initial value of DEP_RELDIR - we test for it below.
317 _DEP_RELDIR := ${DEP_RELDIR}
321 # DIRDEPS_CACHE can be very handy for debugging.
322 # Also if repeatedly building the same target,
323 # we can avoid the overhead of re-computing the tree dependencies.
324 MK_DIRDEPS_CACHE ?= no
325 BUILD_DIRDEPS_CACHE ?= no
328 .if ${MK_DIRDEPS_CACHE} == "yes"
329 # this is where we will cache all our work
330 DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${_TARGETS:U${.TARGETS}:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.}
333 .if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != ""
338 .if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != ""
344 # pickup customizations
345 # as below you can use !target(_DIRDEP_USE) to protect things
346 # which should only be done once.
347 .-include <local.dirdeps.mk>
349 .if !target(_DIRDEP_USE)
350 # things we skip for host tools
353 NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}}
355 # things we always skip
356 # SKIP_DIRDEPS allows for adding entries on command line.
357 SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS}
358 SKIP_DIR.host += ${SKIP_HOSTDIR}
360 DEP_SKIP_DIR = ${SKIP_DIR} \
361 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \
362 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \
363 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \
364 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@}
367 NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}}
369 .if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS)
371 .elif defined(WITHOUT_DIRDEPS_BELOW)
375 .if defined(NO_DIRDEPS)
376 # confine ourselves to the original dir and below.
377 DIRDEPS_FILTER += M${_DEP_RELDIR}*
378 .elif defined(NO_DIRDEPS_BELOW)
379 DIRDEPS_FILTER += M${_DEP_RELDIR}
382 # this is what we run below
383 DIRDEP_MAKE ?= ${.MAKE}
384 DIRDEP_DIR ?= ${.TARGET:R}
386 # if you want us to report load averages during build
387 # DIRDEP_USE_PRELUDE += ${DIRDEP_LOADAVG_REPORT};
389 DIRDEP_LOADAVG_CMD ?= ${UPTIME:Uuptime} | sed 's,.*\(load\),\1,'
390 DIRDEP_LOADAVG_LAST = 0
391 # yes the expression here is a bit complicated,
392 # the trick is to only eval ${DIRDEP_LOADAVG_LAST::=${now_utc}}
393 # when we want to report.
394 # Note: expr(1) will exit 1 if the expression evaluates to 0
396 DIRDEP_LOADAVG_REPORT = \
397 test -z "${"${expr ${now_utc} - ${DIRDEP_LOADAVG_INTEVAL:U60} - ${DIRDEP_LOADAVG_LAST} || true:L:sh:N-*}":?yes${DIRDEP_LOADAVG_LAST::=${now_utc}}:}" || \
398 echo "${TRACER}`${DIRDEP_LOADAVG_CMD}`"
400 # we suppress SUBDIR when visiting the leaves
401 # we assume sys.mk will set MACHINE_ARCH
402 # you can add extras to DIRDEP_USE_ENV
403 # if there is no makefile in the target directory, we skip it.
404 _DIRDEP_USE: .USE .MAKE
405 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \
406 test -s ${.TARGET:R}/$$m || continue; \
407 echo "${TRACER}Checking ${.TARGET:S,^${SRCTOP}/,,} for ${.TARGET:E} ..."; \
408 ${DIRDEP_USE_PRELUDE} \
409 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \
410 TARGET_SPEC=${.TARGET:E} \
411 MACHINE=${.TARGET:E} \
412 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \
417 .if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST)
418 # we start with everything
419 _machine_list != echo; 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}* 2> /dev/null
421 # some things we know we want to ignore
422 DIRDEPS_TARGETS_SKIP_LIST += \
431 # first trim things we know we want to skip
432 # and provide canonical form
433 _machine_list := ${_machine_list:${DIRDEPS_TARGETS_SKIP_LIST:${M_ListToSkip}}:T:E}
435 # cater for local complexities
436 # local.dirdeps.mk can set
437 # DIRDEPS_ALL_MACHINES_FILTER and
438 # DIRDEPS_ALL_MACHINES_FILTER_XTRAS for final tweaks
440 .if !empty(ALL_TARGET_SPEC_LIST)
442 .info ALL_TARGET_SPEC_LIST=${ALL_TARGET_SPEC_LIST}
444 DIRDEPS_ALL_MACHINES_FILTER += \
445 @x@$${ALL_TARGET_SPEC_LIST:@s@$${x:M$$s}@}@
446 .elif !empty(ALL_MACHINE_LIST)
448 .info ALL_MACHINE_LIST=${ALL_MACHINE_LIST}
450 .if ${TARGET_SPEC_VARS:[#]} > 1
451 # the space below can result in extraneous ':'
452 DIRDEPS_ALL_MACHINES_FILTER += \
453 @x@$${ALL_MACHINE_LIST:@m@$${x:M$$m,*} $${x:M$$m}@}@
455 DIRDEPS_ALL_MACHINES_FILTER += \
456 @x@$${ALL_MACHINE_LIST:@m@$${x:M$$m}@}@
459 # add local XTRAS - default to something benign
460 DIRDEPS_ALL_MACHINES_FILTER += \
461 ${DIRDEPS_ALL_MACHINES_FILTER_XTRAS:UNbak}
464 .info _machine_list=${_machine_list}
465 .info DIRDEPS_ALL_MACHINES_FILTER=${DIRDEPS_ALL_MACHINES_FILTER}
468 _only_machines := ${_machine_list:${DIRDEPS_ALL_MACHINES_FILTER:ts:}:S,:, ,g}
470 _only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U}
473 .if empty(_only_machines)
474 # we must be boot-strapping
475 _only_machines := ${TARGET_MACHINE:U${ALL_TARGET_SPEC_LIST:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}}}
479 _only_machines := ${_only_machines:O:u}
482 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: ALL_MACHINES _only_machines=${_only_machines}
485 .else # ! ALL_MACHINES
486 # if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that.
487 # Note that ONLY_TARGET_SPEC_LIST should be fully qualified.
488 # if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST
489 # otherwise DEP_MACHINE is it - so DEP_MACHINE will match.
490 _only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*}
491 .if empty(_only_machines)
492 _only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}}
496 .if !empty(NOT_MACHINE_LIST)
497 _only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}}
499 .if !empty(NOT_TARGET_SPEC_LIST)
500 # we must first qualify
501 _dm := ${DEP_MACHINE}
502 _only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,}
503 DEP_MACHINE := ${_dm}
504 _only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}}
507 _only_machines := ${_only_machines:O:u}
510 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _only_machines=${_only_machines}
513 # make sure we have a starting place?
517 .if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW)
518 .if ${MK_DIRDEPS_CACHE} == "yes"
520 # just ensure this exists
523 M_oneperline = @x@\\${.newline} $$x@
525 .if ${BUILD_DIRDEPS_CACHE} == "no"
526 .if !target(dirdeps-cached)
527 # we do this via sub-make
530 # ignore anything but these
531 .MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}*
533 dirdeps: dirdeps-cached
534 dirdeps-cached: ${DIRDEPS_CACHE} .MAKE
535 @echo "${TRACER}Using ${DIRDEPS_CACHE}"
536 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \
537 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no
539 # leaf makefiles rarely work for building DIRDEPS_CACHE
541 BUILD_DIRDEPS_MAKEFILE ?= -f dirdeps.mk
544 # these should generally do
545 BUILD_DIRDEPS_MAKEFILE ?=
546 BUILD_DIRDEPS_TARGETS ?= ${.TARGETS}
548 .if ${DIRDEPS_CACHE} != ${STATIC_DIRDEPS_CACHE:Uno} && ${DIRDEPS_CACHE:M${SRCTOP}/*} == ""
549 # export this for dirdeps-cache-update.mk
550 DYNAMIC_DIRDEPS_CACHE := ${DIRDEPS_CACHE}
551 .export DYNAMIC_DIRDEPS_CACHE
552 # we need the .meta file to ensure we update if
553 # any of the Makefile.depend* changed.
554 # We do not want to compare the command line though.
555 ${DIRDEPS_CACHE}: .META .NOMETA_CMP
556 +@{ echo '# Autogenerated - do NOT edit!'; echo; \
557 echo 'BUILD_DIRDEPS=no'; echo; \
558 echo '.include <dirdeps.mk>'; echo; \
560 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \
561 DIRDEPS="${DIRDEPS}" \
562 TARGET_SPEC=${TARGET_SPEC} \
563 MAKEFLAGS= ${DIRDEP_CACHE_MAKE:U${.MAKE}} -C ${_CURDIR} \
564 ${BUILD_DIRDEPS_MAKEFILE} \
565 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \
566 .MAKE.DEPENDFILE=.none \
567 ${"${DEBUG_DIRDEPS:Nno}":?DEBUG_DIRDEPS='${DEBUG_DIRDEPS}':} \
568 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \
569 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \
570 3>&1 1>&2 | sed 's,${SRCTOP},_{SRCTOP},g;s,_{,$${,g' >> ${.TARGET}.new && \
571 mv ${.TARGET}.new ${.TARGET}
575 .elif !target(_count_dirdeps)
576 # we want to capture the dirdeps count in the cache
578 _count_dirdeps: .NOMETA
579 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS}'; } >&3
582 .elif !make(dirdeps) && !target(_count_dirdeps)
583 beforedirdeps: _count_dirdeps
584 _count_dirdeps: .NOMETA
585 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS} seconds=`expr ${now_utc} - ${start_utc}`"
590 .if ${BUILD_DIRDEPS} == "yes"
592 # the rest is done repeatedly for every Makefile.depend we read.
593 # if we are anything but the original dir we care only about the
594 # machine type we were included for..
596 .if ${DEP_RELDIR} == "."
597 _this_dir := ${SRCTOP}
599 _this_dir := ${SRCTOP}/${DEP_RELDIR}
602 # on rare occasions, there can be a need for extra help
603 _dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc
604 .-include <${_dep_hack}>
605 .-include <${_dep_hack:R}.options>
607 .if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC}
609 _machines := ${DEP_MACHINE}
611 # this is the machine list we actually use below
612 _machines := ${_only_machines}
614 .if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == ""
615 # we need to build this guy's dependencies for host as well.
616 .if ${DEP_MACHINE:Nhost*} == ""
617 _machines += ${DEP_MACHINE}
623 _machines := ${_machines:O:u}
626 .if ${TARGET_SPEC_VARS:[#]} > 1
627 # we need to tweak _machines
628 _dm := ${DEP_MACHINE}
629 # apply the same filtering that we do when qualifying DIRDEPS.
630 # M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.'
631 # Again we expect that any already qualified machines are fully qualified.
632 _machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,}
633 DEP_MACHINE := ${_dm}
634 _machines := ${_machines:O:u}
637 # reset each time through
640 .if ${DEP_RELDIR} == ${_DEP_RELDIR}
641 # pickup other machines for this dir if necessary
642 _build_dirs += ${_machines:@m@${_CURDIR}.$m@}
646 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: nDIRDEPS=${DIRDEPS:[#]}
647 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}'
648 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}'
652 # these we reset each time through as they can depend on DEP_MACHINE
653 DEP_DIRDEPS_FILTER = \
654 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \
655 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \
657 .if empty(DEP_DIRDEPS_FILTER)
659 DEP_DIRDEPS_FILTER = U
662 # this is what we start with
663 __depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@}
665 # some entries may be qualified with .<machine> or .<target_spec>
666 # we can tell the unqualified ones easily - because they exist
667 __unqual_depdirs := ${__depdirs:@d@${exists($d):?$d:}@}
668 __qual_depdirs := ${__depdirs:${__unqual_depdirs:Uno:${M_ListToSkip}}}
670 .if ${DEP_RELDIR} == ${_DEP_RELDIR}
671 # if it was called out - we likely need it.
672 __hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \
673 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@}
674 __qual_depdirs += ${__hostdpadd}
678 .info DEP_DIRDEPS_FILTER=${DEP_DIRDEPS_FILTER:ts:}
679 .info depdirs=${__depdirs:S,^${SRCTOP}/,,}
680 .info qualified=${__qual_depdirs:S,^${SRCTOP}/,,}
681 .info unqualified=${__unqual_depdirs:S,^${SRCTOP}/,,}
684 # _build_dirs is what we will feed to _DIRDEP_USE
686 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \
687 ${__qual_depdirs:N*.host} \
688 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \
689 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@}
691 # qualify everything now
692 _build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u}
694 .endif # empty DIRDEPS
696 _build_all_dirs += ${_build_dirs} ${_build_xtra_dirs}
697 _build_all_dirs := ${_build_all_dirs:O:u}
699 # Normally if doing make -V something,
700 # we do not want to waste time chasing DIRDEPS
701 # but if we want to count the number of Makefile.depend* read, we do.
702 .if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS:U}} == ""
703 .if !empty(_build_all_dirs)
704 .if ${BUILD_DIRDEPS_CACHE} == "yes"
705 x!= echo; { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; } >&3
706 # guard against _new_dirdeps being too big for a single command line
707 _new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@:S,^${SRCTOP}/,,}
708 _cache_xtra_deps := ${_build_xtra_dirs:S,^${SRCTOP}/,,}
709 .export _cache_xtra_deps _new_dirdeps
710 .if !empty(DEP_EXPORT_VARS)
711 # Discouraged, but there are always exceptions.
712 # Handle it here rather than explain how.
713 x!= echo; { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3
716 # this makes it all happen
717 dirdeps: ${_build_all_dirs}
719 ${_build_all_dirs}: _DIRDEP_USE
722 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs:S,^${SRCTOP}/,,}
725 .if !empty(DEP_EXPORT_VARS)
726 .export ${DEP_EXPORT_VARS}
730 # this builds the dependency graph
731 .for m in ${_machines}
732 .if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs)
734 x!= echo; { echo; echo 'DIRDEPS.${_this_dir}.$m = \'; } >&3
736 # it would be nice to do :N${.TARGET}
737 .if !empty(__qual_depdirs)
738 .for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m}
739 .if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != ""
740 .info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q:S,^${SRCTOP}/,,}
742 .if ${BUILD_DIRDEPS_CACHE} == "yes"
743 _cache_deps += ${_build_dirs:M*.$q:S,^${SRCTOP}/,,}
745 ${_this_dir}.$m: ${_build_dirs:M*.$q}
750 .info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m:S,^${SRCTOP}/,,}
752 .if ${BUILD_DIRDEPS_CACHE} == "yes"
753 .if !empty(_build_dirs)
754 _cache_deps += ${_build_dirs:M*.$m:N${_this_dir}.$m:S,^${SRCTOP}/,,}
755 .if !empty(_cache_deps)
757 x!= echo; for x in $$_cache_deps; do echo " _{SRCTOP}/$$x \\"; done >&3
759 # anything in _{build,env}_xtra_dirs is hooked to dirdeps: only
760 x!= echo; { echo; echo '${_this_dir}.$m: $${DIRDEPS.${_this_dir}.$m}'; \
761 echo; echo 'dirdeps: ${_this_dir}.$m \'; \
762 for x in $$_cache_xtra_deps; do echo " _{SRCTOP}/$$x \\"; done; \
763 echo; for x in $$_new_dirdeps; do echo "_{SRCTOP}/$$x: _DIRDEP_USE"; done; } >&3
766 ${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m}
772 # Now find more dependencies - and recurse.
773 .for d in ${_build_all_dirs}
774 .if !target(_dirdeps_checked.$d)
778 .info checking ${d:S,^${SRCTOP}/,,}
780 # Note: _build_all_dirs is fully qualifed so d:R is always the directory
782 # we pass _DEP_TARGET_SPEC to tell the next step what we want
783 _DEP_TARGET_SPEC := ${d:E}
784 # some makefiles may still look at this
785 _DEP_MACHINE := ${d:E:C/,.*//}
786 # set these too in case Makefile.depend* uses them
787 .if ${TARGET_SPEC_VARS:[#]} > 1
788 _dtspec := ${_DEP_TARGET_SPEC:S/,/ /g}
789 .for i in ${_tspec_x}
790 DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]}
793 DEP_MACHINE := ${_DEP_MACHINE}
795 # Warning: there is an assumption here that MACHINE is always
796 # the first entry in TARGET_SPEC_VARS.
797 # If TARGET_SPEC and MACHINE are insufficient, you have a problem.
798 _m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:C;${MACHINE}((,.+)?)$;${d:E:C/,.*//}\1;:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]}
800 # M_dep_qual_fixes isn't geared to Makefile.depend
801 _qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}}
803 .info Looking for ${_qm}
805 # set this "just in case"
806 # we can skip :tA since we computed the path above
807 DEP_RELDIR := ${_m:H:S,^${SRCTOP}/,,}
810 .if ${_debug_reldir} && ${_qm} != ${_m}
811 .info loading ${_m} for ${d:E}
815 .-include <local.dirdeps-missing.mk>
822 .endif # BUILD_DIRDEPS
824 .elif ${.MAKE.LEVEL} > 42
825 .error You should have stopped recursing by now.
827 # we are building something
828 DEP_RELDIR := ${RELDIR}
829 _DEP_RELDIR := ${RELDIR}
830 # Since we are/should be included by .MAKE.DEPENDFILE
831 # This is a final opportunity to add/hook global rules.
832 .-include <local.dirdeps-build.mk>
834 # skip _reldir_{finish,failed} if not included from Makefile.depend*
835 # or not in meta mode
836 .if !defined(WITHOUT_META_STATS) && ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" && ${.MAKE.MODE:Mmeta} != ""
838 meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \
839 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}}
841 .if !target(_reldir_finish)
843 _reldir_finish: .NOMETA
844 @echo "${TRACER}Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
847 .if !target(_reldir_failed)
848 .ERROR: _reldir_failed
849 _reldir_failed: .NOMETA
850 @echo "${TRACER}Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
855 # pickup local dependencies
856 .if ${MAKE_VERSION} < 20160220
863 # bootstrapping new dependencies made easy?
864 .if !target(bootstrap-empty)
865 .if !target(bootstrap) && (make(bootstrap) || \
866 make(bootstrap-this) || \
867 make(bootstrap-recurse) || \
868 make(bootstrap-empty))
870 # if we are bootstrapping create the default
871 _want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T}
876 .elif !make(bootstrap-empty)
877 # find a Makefile.depend to use as _src
878 _src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo
880 .error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty
883 _src?= ${.MAKE.DEPENDFILE}
885 .MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g'
887 # just create Makefile.depend* for this dir
888 bootstrap-this: .NOTMAIN
889 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \
890 echo You need to build ${RELDIR} to correctly populate it.
891 .if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T}
892 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T})
894 cp ${.CURDIR}/${_src:T} ${_want}
897 # create Makefile.depend* for this dir and its dependencies
898 bootstrap: bootstrap-recurse
899 bootstrap-recurse: bootstrap-this
902 bootstrap-recurse: .NOTMAIN .MAKE
904 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \
905 test -d $$d || d=$${d%.*}; \
906 test -d $$d || continue; \
907 echo "Checking $$d for bootstrap ..."; \
908 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \
913 # create an empty Makefile.depend* to get the ball rolling.
914 bootstrap-empty: .NOTMAIN .NOMETA
915 @echo Creating empty ${RELDIR}/${_want:T}; \
916 echo You need to build ${RELDIR} to correctly populate it.
917 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want}