1 # $Id: dirdeps.mk,v 1.125 2020/08/26 21:49:45 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 # The default value is just MACHINE, and for most environments
71 # this is sufficient. The _DIRDEP_USE target actually sets
72 # both MACHINE and TARGET_SPEC to the suffix of the current
73 # target so that in the general case TARGET_SPEC can be ignored.
75 # If more than MACHINE is needed then sys.mk needs to decompose
76 # TARGET_SPEC and set the relevant variables accordingly.
77 # It is important that MACHINE be included in and actually be
78 # the first member of TARGET_SPEC_VARS. This allows other
79 # variables to be considered optional, and some of the treatment
80 # below relies on MACHINE being the first entry.
81 # Note: TARGET_SPEC cannot contain any '.'s so the target
82 # triple used by compiler folk won't work (directly anyway).
86 # # Always list MACHINE first,
87 # # other variables might be optional.
88 # TARGET_SPEC_VARS = MACHINE TARGET_OS
89 # .if ${TARGET_SPEC:Uno:M*,*} != ""
90 # _tspec := ${TARGET_SPEC:S/,/ /g}
91 # MACHINE := ${_tspec:[1]}
92 # TARGET_OS := ${_tspec:[2]}
94 # # We need to stop that TARGET_SPEC affecting any submakes
95 # # and deal with MACHINE=${TARGET_SPEC} in the environment.
97 # # export but do not track
98 # .export-env TARGET_SPEC
99 # .export ${TARGET_SPEC_VARS}
100 # .for v in ${TARGET_SPEC_VARS:O:u}
106 # # make sure we know what TARGET_SPEC is
107 # # as we may need it to find Makefile.depend*
108 # TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
110 # The following variables can influence the initial DIRDEPS
111 # computation with regard to the TARGET_SPECs that will be
113 # Most should also be considered by init.mk
115 # ONLY_TARGET_SPEC_LIST
116 # Defines a list of TARGET_SPECs for which the current
117 # directory can be built.
118 # If ALL_MACHINES is defined, we build for all the
119 # TARGET_SPECs listed.
122 # As for ONLY_TARGET_SPEC_LIST but only specifies
125 # NOT_TARGET_SPEC_LIST
126 # A list of TARGET_SPECs for which the current
127 # directory should not be built.
130 # A list of MACHINEs the current directory should not be
134 # local.dirdeps.mk can add targets to this variable.
135 # They will be hooked into the build, but independent of
138 # This allows for adding TESTS to the build, such that the build
139 # if any test fails, but without the risk of introducing
140 # circular dependencies.
142 now_utc ?= ${%s:L:gmtime}
143 .if !defined(start_utc)
144 start_utc := ${now_utc}
147 .if !target(bootstrap) && (make(bootstrap) || \
148 make(bootstrap-this) || \
149 make(bootstrap-recurse) || \
150 make(bootstrap-empty))
151 # disable most of below
155 # touch this at your peril
156 _DIRDEP_USE_LEVEL?= 0
157 .if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL}
158 # only the first instance is interested in all this
160 .if !target(_DIRDEP_USE)
162 # do some setup we only need once
163 _CURDIR ?= ${.CURDIR}
164 _OBJDIR ?= ${.OBJDIR}
166 .if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != ""
167 # This little trick let's us do
169 # mk -f dirdeps.mk some/dir.${TARGET_SPEC}
172 ${.TARGETS:Nall}: all
173 DIRDEPS := ${.TARGETS:M*[/.]*}
174 # so that -DNO_DIRDEPS works
175 DEP_RELDIR := ${DIRDEPS:[1]:R}
176 # this will become DEP_MACHINE below
177 TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//}
178 .if ${TARGET_MACHINE:N*/*} == ""
179 TARGET_MACHINE := ${MACHINE}
181 # disable DIRDEPS_CACHE as it does not like this trick
182 MK_DIRDEPS_CACHE = no
185 # make sure we get the behavior we expect
186 .MAKE.SAVE_DOLLARS = no
188 # make sure these are empty to start with
191 # If TARGET_SPEC_VARS is other than just MACHINE
192 # it should be set by sys.mk or similar by now.
193 # TARGET_SPEC must not contain any '.'s.
194 TARGET_SPEC_VARS ?= MACHINE
195 # this is what we started with
196 TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,}
197 # this is what we mostly use below
198 DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,}
199 # make sure we have defaults
200 .for v in ${TARGET_SPEC_VARS}
204 .if ${TARGET_SPEC_VARS:[#]} > 1
205 # Ok, this gets more complex (putting it mildly).
206 # In order to stay sane, we need to ensure that all the build_dirs
207 # we compute below are fully qualified wrt DEP_TARGET_SPEC.
208 # The makefiles may only partially specify (eg. MACHINE only),
209 # so we need to construct a set of modifiers to fill in the gaps.
210 .if ${MAKE_VERSION} >= 20170130
211 _tspec_x := ${TARGET_SPEC_VARS:range}
212 .elif ${TARGET_SPEC_VARS:[#]} > 10
213 # seriously? better have jot(1) or equivalent to produce suitable sequence
214 _tspec_x := ${${JOT:Ujot} ${TARGET_SPEC_VARS:[#]}:L:sh}
216 # we can provide the sequence ourselves
217 _tspec_x := ${1 2 3 4 5 6 7 8 9 10:L:[1..${TARGET_SPEC_VARS:[#]}]}
219 # this handles unqualified entries
220 M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC};
221 # there needs to be at least one item missing for these to make sense
222 .for i in ${_tspec_x:[2..-1]}
223 _tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,}
224 _tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,}
225 M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i};
227 TARGET_SPEC_VARSr := ${TARGET_SPEC_VARS:[-1..1]}
229 # A harmless? default.
233 .if !defined(.MAKE.DEPENDFILE_PREFERENCE)
234 # .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater?
235 # you really want this set by sys.mk or similar
236 .MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T}
237 .if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}"
238 .if ${TARGET_SPEC} != ${MACHINE}
239 .MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE}
241 .MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}
245 _default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T}
246 _machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*}
248 # for machine specific dependfiles we require ${MACHINE} to be at the end
249 # also for the sake of sanity we require a common prefix
250 .if !defined(.MAKE.DEPENDFILE_PREFIX)
251 # knowing .MAKE.DEPENDFILE_PREFIX helps
252 .if !empty(_machine_dependfiles)
253 .MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R}
255 .MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T}
260 # this is how we identify non-machine specific dependfiles
261 N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}}
263 .endif # !target(_DIRDEP_USE)
265 # First off, we want to know what ${MACHINE} to build for.
266 # This can be complicated if we are using a mixture of ${MACHINE} specific
267 # and non-specific Makefile.depend*
269 # if we were included recursively _DEP_TARGET_SPEC should be valid.
270 .if empty(_DEP_TARGET_SPEC)
271 # we may or may not have included a dependfile yet
272 .if defined(.INCLUDEDFROMFILE)
273 _last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*}
275 _last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]}
277 .if ${_debug_reldir:U0}
278 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}'
281 .if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == ""
282 # this is all we have to work with
283 DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}}
284 _DEP_TARGET_SPEC := ${DEP_TARGET_SPEC}
286 _DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E}
288 .if !empty(_last_dependfile)
289 # record that we've read dependfile for this
290 _dirdeps_checked.${_CURDIR}.${TARGET_SPEC}:
294 # by now _DEP_TARGET_SPEC should be set, parse it.
295 .if ${TARGET_SPEC_VARS:[#]} > 1
296 # we need to parse DEP_MACHINE may or may not contain more info
297 _tspec := ${_DEP_TARGET_SPEC:S/,/ /g}
298 .for i in ${_tspec_x}
299 DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]}
301 .for v in ${TARGET_SPEC_VARS:O:u}
307 DEP_MACHINE := ${_DEP_TARGET_SPEC}
310 # reset each time through
314 # the first time we are included the _DIRDEP_USE target will not be defined
315 # we can use this as a clue to do initialization and other one time things.
316 .if !target(_DIRDEP_USE)
317 # make sure this target exists
318 dirdeps: beforedirdeps .WAIT
321 # We normally expect to be included by Makefile.depend.*
322 # which sets the DEP_* macros below.
323 DEP_RELDIR ?= ${RELDIR}
325 # this can cause lots of output!
326 # set to a set of glob expressions that might match RELDIR
329 # remember the initial value of DEP_RELDIR - we test for it below.
330 _DEP_RELDIR := ${DEP_RELDIR}
334 # DIRDEPS_CACHE can be very handy for debugging.
335 # Also if repeatedly building the same target,
336 # we can avoid the overhead of re-computing the tree dependencies.
337 MK_DIRDEPS_CACHE ?= no
338 BUILD_DIRDEPS_CACHE ?= no
341 .if ${MK_DIRDEPS_CACHE} == "yes"
342 # this is where we will cache all our work
343 DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${_TARGETS:U${.TARGETS}:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.}
346 .if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != ""
351 .if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != ""
357 # pickup customizations
358 # as below you can use !target(_DIRDEP_USE) to protect things
359 # which should only be done once.
360 .-include <local.dirdeps.mk>
362 .if !target(_DIRDEP_USE)
363 # things we skip for host tools
366 NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}}
368 # things we always skip
369 # SKIP_DIRDEPS allows for adding entries on command line.
370 SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS}
371 SKIP_DIR.host += ${SKIP_HOSTDIR}
373 DEP_SKIP_DIR = ${SKIP_DIR} \
374 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \
375 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \
376 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \
377 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@}
380 NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}}
382 .if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS)
384 .elif defined(WITHOUT_DIRDEPS_BELOW)
388 .if defined(NO_DIRDEPS)
389 # confine ourselves to the original dir and below.
390 DIRDEPS_FILTER += M${_DEP_RELDIR}*
391 .elif defined(NO_DIRDEPS_BELOW)
392 DIRDEPS_FILTER += M${_DEP_RELDIR}
395 # this is what we run below
396 DIRDEP_MAKE ?= ${.MAKE}
397 DIRDEP_DIR ?= ${.TARGET:R}
399 # if you want us to report load averages during build
400 # DIRDEP_USE_PRELUDE += ${DIRDEP_LOADAVG_REPORT};
402 DIRDEP_LOADAVG_CMD ?= ${UPTIME:Uuptime} | sed 's,.*\(load\),\1,'
403 DIRDEP_LOADAVG_LAST = 0
404 # yes the expression here is a bit complicated,
405 # the trick is to only eval ${DIRDEP_LOADAVG_LAST::=${now_utc}}
406 # when we want to report.
407 DIRDEP_LOADAVG_REPORT = \
408 test -z "${"${expr ${now_utc} - ${DIRDEP_LOADAVG_INTEVAL:U60} - ${DIRDEP_LOADAVG_LAST}:L:sh:N-*}":?yes${DIRDEP_LOADAVG_LAST::=${now_utc}}:}" || \
409 echo "${TRACER}`${DIRDEP_LOADAVG_CMD}`"
411 # we suppress SUBDIR when visiting the leaves
412 # we assume sys.mk will set MACHINE_ARCH
413 # you can add extras to DIRDEP_USE_ENV
414 # if there is no makefile in the target directory, we skip it.
415 _DIRDEP_USE: .USE .MAKE
416 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \
417 test -s ${.TARGET:R}/$$m || continue; \
418 echo "${TRACER}Checking ${.TARGET:S,${SRCTOP}/,,} for ${.TARGET:E} ..."; \
419 ${DIRDEP_USE_PRELUDE} \
420 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \
421 TARGET_SPEC=${.TARGET:E} \
422 MACHINE=${.TARGET:E} \
423 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \
428 # this is how you limit it to only the machines we have been built for
430 .if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST)
431 .if !empty(ALL_MACHINE_LIST)
432 # ALL_MACHINE_LIST is the list of all legal machines - ignore anything else
433 _machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo
435 _machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo
437 _only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u}
439 _only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U}
442 .if empty(_only_machines)
443 # we must be boot-strapping
444 _only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}}
447 .else # ! ALL_MACHINES
448 # if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that.
449 # Note that ONLY_TARGET_SPEC_LIST should be fully qualified.
450 # if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST
451 # otherwise DEP_MACHINE is it - so DEP_MACHINE will match.
452 _only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*}
453 .if empty(_only_machines)
454 _only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}}
458 .if !empty(NOT_MACHINE_LIST)
459 _only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}}
461 .if !empty(NOT_TARGET_SPEC_LIST)
462 # we must first qualify
463 _dm := ${DEP_MACHINE}
464 _only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,}
465 DEP_MACHINE := ${_dm}
466 _only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}}
469 _only_machines := ${_only_machines:O:u}
471 # make sure we have a starting place?
475 .if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW)
476 .if ${MK_DIRDEPS_CACHE} == "yes"
478 # just ensure this exists
481 M_oneperline = @x@\\${.newline} $$x@
483 .if ${BUILD_DIRDEPS_CACHE} == "no"
484 .if !target(dirdeps-cached)
485 # we do this via sub-make
488 # ignore anything but these
489 .MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}*
491 dirdeps: dirdeps-cached
492 dirdeps-cached: ${DIRDEPS_CACHE} .MAKE
493 @echo "${TRACER}Using ${DIRDEPS_CACHE}"
494 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \
495 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no
497 # these should generally do
498 BUILD_DIRDEPS_MAKEFILE ?=
499 BUILD_DIRDEPS_TARGETS ?= ${.TARGETS}
501 .if ${DIRDEPS_CACHE} != ${STATIC_DIRDEPS_CACHE:Uno} && ${DIRDEPS_CACHE:M${SRCTOP}/*} == ""
502 # export this for dirdeps-cache-update.mk
503 DYNAMIC_DIRDEPS_CACHE := ${DIRDEPS_CACHE}
504 .export DYNAMIC_DIRDEPS_CACHE
505 # we need the .meta file to ensure we update if
506 # any of the Makefile.depend* changed.
507 # We do not want to compare the command line though.
508 ${DIRDEPS_CACHE}: .META .NOMETA_CMP
509 +@{ echo '# Autogenerated - do NOT edit!'; echo; \
510 echo 'BUILD_DIRDEPS=no'; echo; \
511 echo '.include <dirdeps.mk>'; echo; \
513 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \
514 DIRDEPS="${DIRDEPS}" \
515 TARGET_SPEC=${TARGET_SPEC} \
516 MAKEFLAGS= ${DIRDEP_CACHE_MAKE:U${.MAKE}} -C ${_CURDIR} \
517 ${BUILD_DIRDEPS_MAKEFILE} \
518 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \
519 .MAKE.DEPENDFILE=.none \
520 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \
521 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \
522 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g;s,_{,$${,g' >> ${.TARGET}.new && \
523 mv ${.TARGET}.new ${.TARGET}
527 .elif !target(_count_dirdeps)
528 # we want to capture the dirdeps count in the cache
530 _count_dirdeps: .NOMETA
531 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS}'; } >&3
534 .elif !make(dirdeps) && !target(_count_dirdeps)
535 beforedirdeps: _count_dirdeps
536 _count_dirdeps: .NOMETA
537 @echo "${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}`"
542 .if ${BUILD_DIRDEPS} == "yes"
544 # the rest is done repeatedly for every Makefile.depend we read.
545 # if we are anything but the original dir we care only about the
546 # machine type we were included for..
548 .if ${DEP_RELDIR} == "."
549 _this_dir := ${SRCTOP}
551 _this_dir := ${SRCTOP}/${DEP_RELDIR}
554 # on rare occasions, there can be a need for extra help
555 _dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc
556 .-include <${_dep_hack}>
557 .-include <${_dep_hack:R}.options>
559 .if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC}
561 _machines := ${DEP_MACHINE}
563 # this is the machine list we actually use below
564 _machines := ${_only_machines}
566 .if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == ""
567 # we need to build this guy's dependencies for host as well.
568 .if ${DEP_MACHINE:Nhost*} == ""
569 _machines += ${DEP_MACHINE}
575 _machines := ${_machines:O:u}
578 .if ${TARGET_SPEC_VARS:[#]} > 1
579 # we need to tweak _machines
580 _dm := ${DEP_MACHINE}
581 # apply the same filtering that we do when qualifying DIRDEPS.
582 # M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.'
583 # Again we expect that any already qualified machines are fully qualified.
584 _machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,}
585 DEP_MACHINE := ${_dm}
586 _machines := ${_machines:O:u}
589 # reset each time through
592 .if ${DEP_RELDIR} == ${_DEP_RELDIR}
593 # pickup other machines for this dir if necessary
594 _build_dirs += ${_machines:@m@${_CURDIR}.$m@}
598 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}'
599 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}'
603 # these we reset each time through as they can depend on DEP_MACHINE
604 DEP_DIRDEPS_FILTER = \
605 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \
606 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \
608 .if empty(DEP_DIRDEPS_FILTER)
610 DEP_DIRDEPS_FILTER = U
613 # this is what we start with
614 __depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@}
616 # some entries may be qualified with .<machine>
617 # the :M*/*/*.* just tries to limit the dirs we check to likely ones.
618 # the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd
619 __qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@}
620 __unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}}
622 .if ${DEP_RELDIR} == ${_DEP_RELDIR}
623 # if it was called out - we likely need it.
624 __hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \
625 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@}
626 __qual_depdirs += ${__hostdpadd}
630 .info depdirs=${__depdirs}
631 .info qualified=${__qual_depdirs}
632 .info unqualified=${__unqual_depdirs}
635 # _build_dirs is what we will feed to _DIRDEP_USE
637 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \
638 ${__qual_depdirs:N*.host} \
639 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \
640 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@}
642 # qualify everything now
643 _build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u}
645 .endif # empty DIRDEPS
647 _build_all_dirs += ${_build_dirs} ${_build_xtra_dirs}
648 _build_all_dirs := ${_build_all_dirs:O:u}
650 # Normally if doing make -V something,
651 # we do not want to waste time chasing DIRDEPS
652 # but if we want to count the number of Makefile.depend* read, we do.
653 .if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == ""
654 .if !empty(_build_all_dirs)
655 .if ${BUILD_DIRDEPS_CACHE} == "yes"
656 x!= echo; { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; } >&3
657 # guard against _new_dirdeps being too big for a single command line
658 _new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@}
659 .export _build_xtra_dirs _new_dirdeps
660 .if !empty(DEP_EXPORT_VARS)
661 # Discouraged, but there are always exceptions.
662 # Handle it here rather than explain how.
663 x!= echo; { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3
666 # this makes it all happen
667 dirdeps: ${_build_all_dirs}
669 ${_build_all_dirs}: _DIRDEP_USE
672 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs}
675 .if !empty(DEP_EXPORT_VARS)
676 .export ${DEP_EXPORT_VARS}
680 # this builds the dependency graph
681 .for m in ${_machines}
682 .if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs)
683 x!= echo; { echo; echo 'DIRDEPS.${_this_dir}.$m = \'; } >&3
686 # it would be nice to do :N${.TARGET}
687 .if !empty(__qual_depdirs)
688 .for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m}
689 .if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != ""
690 .info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q}
692 .if ${BUILD_DIRDEPS_CACHE} == "yes"
693 _cache_deps += ${_build_dirs:M*.$q}
695 ${_this_dir}.$m: ${_build_dirs:M*.$q}
700 .info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m}
702 .if ${BUILD_DIRDEPS_CACHE} == "yes"
703 .if !empty(_build_dirs)
704 _cache_deps += ${_build_dirs:M*.$m:N${_this_dir}.$m}
705 .if !empty(_cache_deps)
707 x!= echo; for x in $$_cache_deps; do echo " $$x \\"; done >&3
709 x!= echo; { echo; echo '${_this_dir}.$m: $${DIRDEPS.${_this_dir}.$m}'; \
710 echo; echo 'dirdeps: ${_this_dir}.$m \'; \
711 for x in $$_build_xtra_dirs; do echo " $$x \\"; done; \
712 echo; for x in $$_new_dirdeps; do echo "$$x: _DIRDEP_USE"; done; } >&3
715 ${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m}
721 # Now find more dependencies - and recurse.
722 .for d in ${_build_all_dirs}
723 .if !target(_dirdeps_checked.$d)
729 # Note: _build_all_dirs is fully qualifed so d:R is always the directory
731 # we pass _DEP_TARGET_SPEC to tell the next step what we want
732 _DEP_TARGET_SPEC := ${d:E}
733 # some makefiles may still look at this
734 _DEP_MACHINE := ${d:E:C/,.*//}
735 # set these too in case Makefile.depend* uses them
736 .if ${TARGET_SPEC_VARS:[#]} > 1
737 _dtspec := ${_DEP_TARGET_SPEC:S/,/ /g}
738 .for i in ${_tspec_x}
739 DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]}
742 DEP_MACHINE := ${_DEP_MACHINE}
744 # Warning: there is an assumption here that MACHINE is always
745 # the first entry in TARGET_SPEC_VARS.
746 # If TARGET_SPEC and MACHINE are insufficient, you have a problem.
747 _m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]}
749 # M_dep_qual_fixes isn't geared to Makefile.depend
750 _qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}}
752 .info Looking for ${_qm}
754 # set this "just in case"
755 # we can skip :tA since we computed the path above
756 DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,}
759 .if ${_debug_reldir} && ${_qm} != ${_m}
760 .info loading ${_m} for ${d:E}
764 .-include <local.dirdeps-missing.mk>
771 .endif # BUILD_DIRDEPS
773 .elif ${.MAKE.LEVEL} > 42
774 .error You should have stopped recursing by now.
776 # we are building something
777 DEP_RELDIR := ${RELDIR}
778 _DEP_RELDIR := ${RELDIR}
779 # Since we are/should be included by .MAKE.DEPENDFILE
780 # This is a final opportunity to add/hook global rules.
781 .-include <local.dirdeps-build.mk>
783 # skip _reldir_{finish,failed} if not included from Makefile.depend*
784 # or not in meta mode
785 .if !defined(WITHOUT_META_STATS) && ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" && ${.MAKE.MODE:Mmeta} != ""
787 meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \
788 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}}
790 .if !target(_reldir_finish)
792 _reldir_finish: .NOMETA
793 @echo "${TRACER}Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
796 .if !target(_reldir_failed)
797 .ERROR: _reldir_failed
798 _reldir_failed: .NOMETA
799 @echo "${TRACER}Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
804 # pickup local dependencies
805 .if ${MAKE_VERSION} < 20160220
812 # bootstrapping new dependencies made easy?
813 .if !target(bootstrap) && (make(bootstrap) || \
814 make(bootstrap-this) || \
815 make(bootstrap-recurse) || \
816 make(bootstrap-empty))
818 # if we are bootstrapping create the default
819 _want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T}
824 .elif !make(bootstrap-empty)
825 # find a Makefile.depend to use as _src
826 _src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo
828 .error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty
831 _src?= ${.MAKE.DEPENDFILE}
833 .MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g'
835 # just create Makefile.depend* for this dir
836 bootstrap-this: .NOTMAIN
837 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \
838 echo You need to build ${RELDIR} to correctly populate it.
839 .if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T}
840 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T})
842 cp ${.CURDIR}/${_src:T} ${_want}
845 # create Makefile.depend* for this dir and its dependencies
846 bootstrap: bootstrap-recurse
847 bootstrap-recurse: bootstrap-this
850 bootstrap-recurse: .NOTMAIN .MAKE
852 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \
853 test -d $$d || d=$${d%.*}; \
854 test -d $$d || continue; \
855 echo "Checking $$d for bootstrap ..."; \
856 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \
861 # create an empty Makefile.depend* to get the ball rolling.
862 bootstrap-empty: .NOTMAIN .NOMETA
863 @echo Creating empty ${RELDIR}/${_want:T}; \
864 echo You need to build ${RELDIR} to correctly populate it.
865 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want}