1 # $Id: dirdeps.mk,v 1.130 2020/11/02 00:34:30 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}
214 _tspec_x := ${TARGET_SPEC_VARS:[#]:@x@i=1;while [ $$i -le $x ]; do echo $$i; i=$$((i + 1)); done;@:sh}
216 # this handles unqualified entries
217 M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC};
218 # there needs to be at least one item missing for these to make sense
219 .for i in ${_tspec_x:[2..-1]}
220 _tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,}
221 _tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,}
222 M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i};
224 TARGET_SPEC_VARSr := ${TARGET_SPEC_VARS:[-1..1]}
226 # A harmless? default.
230 .if !defined(.MAKE.DEPENDFILE_PREFERENCE)
231 # .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater?
232 # you really want this set by sys.mk or similar
233 .MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T}
234 .if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}"
235 .if ${TARGET_SPEC} != ${MACHINE}
236 .MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE}
238 .MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}
242 _default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T}
243 _machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*}
245 # for machine specific dependfiles we require ${MACHINE} to be at the end
246 # also for the sake of sanity we require a common prefix
247 .if !defined(.MAKE.DEPENDFILE_PREFIX)
248 # knowing .MAKE.DEPENDFILE_PREFIX helps
249 .if !empty(_machine_dependfiles)
250 .MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R}
252 .MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T}
257 # this is how we identify non-machine specific dependfiles
258 N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}}
260 .endif # !target(_DIRDEP_USE)
262 # First off, we want to know what ${MACHINE} to build for.
263 # This can be complicated if we are using a mixture of ${MACHINE} specific
264 # and non-specific Makefile.depend*
266 # if we were included recursively _DEP_TARGET_SPEC should be valid.
267 .if empty(_DEP_TARGET_SPEC)
268 # we may or may not have included a dependfile yet
269 .if defined(.INCLUDEDFROMFILE)
270 _last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*}
272 _last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]}
274 .if ${_debug_reldir:U0}
275 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}'
278 .if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == ""
279 # this is all we have to work with
280 DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}}
281 _DEP_TARGET_SPEC := ${DEP_TARGET_SPEC}
283 _DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E}
285 .if !empty(_last_dependfile)
286 # record that we've read dependfile for this
287 _dirdeps_checked.${_CURDIR}.${TARGET_SPEC}:
291 # by now _DEP_TARGET_SPEC should be set, parse it.
292 .if ${TARGET_SPEC_VARS:[#]} > 1
293 # we need to parse DEP_MACHINE may or may not contain more info
294 _tspec := ${_DEP_TARGET_SPEC:S/,/ /g}
295 .for i in ${_tspec_x}
296 DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]}
298 .for v in ${TARGET_SPEC_VARS:O:u}
304 DEP_MACHINE := ${_DEP_TARGET_SPEC}
307 # 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:U${.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 # if you want us to report load averages during build
397 # DIRDEP_USE_PRELUDE += ${DIRDEP_LOADAVG_REPORT};
399 DIRDEP_LOADAVG_CMD ?= ${UPTIME:Uuptime} | sed 's,.*\(load\),\1,'
400 DIRDEP_LOADAVG_LAST = 0
401 # yes the expression here is a bit complicated,
402 # the trick is to only eval ${DIRDEP_LOADAVG_LAST::=${now_utc}}
403 # when we want to report.
404 DIRDEP_LOADAVG_REPORT = \
405 test -z "${"${expr ${now_utc} - ${DIRDEP_LOADAVG_INTEVAL:U60} - ${DIRDEP_LOADAVG_LAST}:L:sh:N-*}":?yes${DIRDEP_LOADAVG_LAST::=${now_utc}}:}" || \
406 echo "${TRACER}`${DIRDEP_LOADAVG_CMD}`"
408 # we suppress SUBDIR when visiting the leaves
409 # we assume sys.mk will set MACHINE_ARCH
410 # you can add extras to DIRDEP_USE_ENV
411 # if there is no makefile in the target directory, we skip it.
412 _DIRDEP_USE: .USE .MAKE
413 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \
414 test -s ${.TARGET:R}/$$m || continue; \
415 echo "${TRACER}Checking ${.TARGET:S,${SRCTOP}/,,} for ${.TARGET:E} ..."; \
416 ${DIRDEP_USE_PRELUDE} \
417 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \
418 TARGET_SPEC=${.TARGET:E} \
419 MACHINE=${.TARGET:E} \
420 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \
425 # this is how you limit it to only the machines we have been built for
427 .if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST)
428 .if !empty(ALL_MACHINE_LIST)
429 # ALL_MACHINE_LIST is the list of all legal machines - ignore anything else
430 _machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo
432 _machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo
434 _only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u}
436 _only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U}
439 .if empty(_only_machines)
440 # we must be boot-strapping
441 _only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}}
444 .else # ! ALL_MACHINES
445 # if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that.
446 # Note that ONLY_TARGET_SPEC_LIST should be fully qualified.
447 # if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST
448 # otherwise DEP_MACHINE is it - so DEP_MACHINE will match.
449 _only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*}
450 .if empty(_only_machines)
451 _only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}}
455 .if !empty(NOT_MACHINE_LIST)
456 _only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}}
458 .if !empty(NOT_TARGET_SPEC_LIST)
459 # we must first qualify
460 _dm := ${DEP_MACHINE}
461 _only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,}
462 DEP_MACHINE := ${_dm}
463 _only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}}
466 _only_machines := ${_only_machines:O:u}
468 # make sure we have a starting place?
472 .if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW)
473 .if ${MK_DIRDEPS_CACHE} == "yes"
475 # just ensure this exists
478 M_oneperline = @x@\\${.newline} $$x@
480 .if ${BUILD_DIRDEPS_CACHE} == "no"
481 .if !target(dirdeps-cached)
482 # we do this via sub-make
485 # ignore anything but these
486 .MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}*
488 dirdeps: dirdeps-cached
489 dirdeps-cached: ${DIRDEPS_CACHE} .MAKE
490 @echo "${TRACER}Using ${DIRDEPS_CACHE}"
491 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \
492 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no
494 # leaf makefiles rarely work for building DIRDEPS_CACHE
496 BUILD_DIRDEPS_MAKEFILE ?= -f dirdeps.mk
499 # these should generally do
500 BUILD_DIRDEPS_MAKEFILE ?=
501 BUILD_DIRDEPS_TARGETS ?= ${.TARGETS}
503 .if ${DIRDEPS_CACHE} != ${STATIC_DIRDEPS_CACHE:Uno} && ${DIRDEPS_CACHE:M${SRCTOP}/*} == ""
504 # export this for dirdeps-cache-update.mk
505 DYNAMIC_DIRDEPS_CACHE := ${DIRDEPS_CACHE}
506 .export DYNAMIC_DIRDEPS_CACHE
507 # we need the .meta file to ensure we update if
508 # any of the Makefile.depend* changed.
509 # We do not want to compare the command line though.
510 ${DIRDEPS_CACHE}: .META .NOMETA_CMP
511 +@{ echo '# Autogenerated - do NOT edit!'; echo; \
512 echo 'BUILD_DIRDEPS=no'; echo; \
513 echo '.include <dirdeps.mk>'; echo; \
515 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \
516 DIRDEPS="${DIRDEPS}" \
517 TARGET_SPEC=${TARGET_SPEC} \
518 MAKEFLAGS= ${DIRDEP_CACHE_MAKE:U${.MAKE}} -C ${_CURDIR} \
519 ${BUILD_DIRDEPS_MAKEFILE} \
520 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \
521 .MAKE.DEPENDFILE=.none \
522 ${"${DEBUG_DIRDEPS:Nno}":?DEBUG_DIRDEPS='${DEBUG_DIRDEPS}':} \
523 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \
524 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \
525 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g;s,_{,$${,g' >> ${.TARGET}.new && \
526 mv ${.TARGET}.new ${.TARGET}
530 .elif !target(_count_dirdeps)
531 # we want to capture the dirdeps count in the cache
533 _count_dirdeps: .NOMETA
534 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS}'; } >&3
537 .elif !make(dirdeps) && !target(_count_dirdeps)
538 beforedirdeps: _count_dirdeps
539 _count_dirdeps: .NOMETA
540 @echo "${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}`"
545 .if ${BUILD_DIRDEPS} == "yes"
547 # the rest is done repeatedly for every Makefile.depend we read.
548 # if we are anything but the original dir we care only about the
549 # machine type we were included for..
551 .if ${DEP_RELDIR} == "."
552 _this_dir := ${SRCTOP}
554 _this_dir := ${SRCTOP}/${DEP_RELDIR}
557 # on rare occasions, there can be a need for extra help
558 _dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc
559 .-include <${_dep_hack}>
560 .-include <${_dep_hack:R}.options>
562 .if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC}
564 _machines := ${DEP_MACHINE}
566 # this is the machine list we actually use below
567 _machines := ${_only_machines}
569 .if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == ""
570 # we need to build this guy's dependencies for host as well.
571 .if ${DEP_MACHINE:Nhost*} == ""
572 _machines += ${DEP_MACHINE}
578 _machines := ${_machines:O:u}
581 .if ${TARGET_SPEC_VARS:[#]} > 1
582 # we need to tweak _machines
583 _dm := ${DEP_MACHINE}
584 # apply the same filtering that we do when qualifying DIRDEPS.
585 # M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.'
586 # Again we expect that any already qualified machines are fully qualified.
587 _machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,}
588 DEP_MACHINE := ${_dm}
589 _machines := ${_machines:O:u}
592 # reset each time through
595 .if ${DEP_RELDIR} == ${_DEP_RELDIR}
596 # pickup other machines for this dir if necessary
597 _build_dirs += ${_machines:@m@${_CURDIR}.$m@}
601 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}'
602 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}'
606 # these we reset each time through as they can depend on DEP_MACHINE
607 DEP_DIRDEPS_FILTER = \
608 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \
609 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \
611 .if empty(DEP_DIRDEPS_FILTER)
613 DEP_DIRDEPS_FILTER = U
616 # this is what we start with
617 __depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@}
619 # some entries may be qualified with .<machine>
620 # the :M*/*/*.* just tries to limit the dirs we check to likely ones.
621 # the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd
622 __qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@}
623 __unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}}
625 .if ${DEP_RELDIR} == ${_DEP_RELDIR}
626 # if it was called out - we likely need it.
627 __hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \
628 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@}
629 __qual_depdirs += ${__hostdpadd}
633 .info DEP_DIRDEPS_FILTER=${DEP_DIRDEPS_FILTER:ts:}
634 .info depdirs=${__depdirs}
635 .info qualified=${__qual_depdirs}
636 .info unqualified=${__unqual_depdirs}
639 # _build_dirs is what we will feed to _DIRDEP_USE
641 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \
642 ${__qual_depdirs:N*.host} \
643 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \
644 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@}
646 # qualify everything now
647 _build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u}
649 .endif # empty DIRDEPS
651 _build_all_dirs += ${_build_dirs} ${_build_xtra_dirs}
652 _build_all_dirs := ${_build_all_dirs:O:u}
654 # Normally if doing make -V something,
655 # we do not want to waste time chasing DIRDEPS
656 # but if we want to count the number of Makefile.depend* read, we do.
657 .if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == ""
658 .if !empty(_build_all_dirs)
659 .if ${BUILD_DIRDEPS_CACHE} == "yes"
660 x!= echo; { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; } >&3
661 # guard against _new_dirdeps being too big for a single command line
662 _new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@}
663 .export _build_xtra_dirs _new_dirdeps
664 .if !empty(DEP_EXPORT_VARS)
665 # Discouraged, but there are always exceptions.
666 # Handle it here rather than explain how.
667 x!= echo; { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3
670 # this makes it all happen
671 dirdeps: ${_build_all_dirs}
673 ${_build_all_dirs}: _DIRDEP_USE
676 .info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs}
679 .if !empty(DEP_EXPORT_VARS)
680 .export ${DEP_EXPORT_VARS}
684 # this builds the dependency graph
685 .for m in ${_machines}
686 .if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs)
687 x!= echo; { echo; echo 'DIRDEPS.${_this_dir}.$m = \'; } >&3
690 # it would be nice to do :N${.TARGET}
691 .if !empty(__qual_depdirs)
692 .for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m}
693 .if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != ""
694 .info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q}
696 .if ${BUILD_DIRDEPS_CACHE} == "yes"
697 _cache_deps += ${_build_dirs:M*.$q}
699 ${_this_dir}.$m: ${_build_dirs:M*.$q}
704 .info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m}
706 .if ${BUILD_DIRDEPS_CACHE} == "yes"
707 .if !empty(_build_dirs)
708 _cache_deps += ${_build_dirs:M*.$m:N${_this_dir}.$m}
709 .if !empty(_cache_deps)
711 x!= echo; for x in $$_cache_deps; do echo " $$x \\"; done >&3
713 x!= echo; { echo; echo '${_this_dir}.$m: $${DIRDEPS.${_this_dir}.$m}'; \
714 echo; echo 'dirdeps: ${_this_dir}.$m \'; \
715 for x in $$_build_xtra_dirs; do echo " $$x \\"; done; \
716 echo; for x in $$_new_dirdeps; do echo "$$x: _DIRDEP_USE"; done; } >&3
719 ${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m}
725 # Now find more dependencies - and recurse.
726 .for d in ${_build_all_dirs}
727 .if !target(_dirdeps_checked.$d)
733 # Note: _build_all_dirs is fully qualifed so d:R is always the directory
735 # we pass _DEP_TARGET_SPEC to tell the next step what we want
736 _DEP_TARGET_SPEC := ${d:E}
737 # some makefiles may still look at this
738 _DEP_MACHINE := ${d:E:C/,.*//}
739 # set these too in case Makefile.depend* uses them
740 .if ${TARGET_SPEC_VARS:[#]} > 1
741 _dtspec := ${_DEP_TARGET_SPEC:S/,/ /g}
742 .for i in ${_tspec_x}
743 DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]}
746 DEP_MACHINE := ${_DEP_MACHINE}
748 # Warning: there is an assumption here that MACHINE is always
749 # the first entry in TARGET_SPEC_VARS.
750 # If TARGET_SPEC and MACHINE are insufficient, you have a problem.
751 _m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]}
753 # M_dep_qual_fixes isn't geared to Makefile.depend
754 _qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}}
756 .info Looking for ${_qm}
758 # set this "just in case"
759 # we can skip :tA since we computed the path above
760 DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,}
763 .if ${_debug_reldir} && ${_qm} != ${_m}
764 .info loading ${_m} for ${d:E}
768 .-include <local.dirdeps-missing.mk>
775 .endif # BUILD_DIRDEPS
777 .elif ${.MAKE.LEVEL} > 42
778 .error You should have stopped recursing by now.
780 # we are building something
781 DEP_RELDIR := ${RELDIR}
782 _DEP_RELDIR := ${RELDIR}
783 # Since we are/should be included by .MAKE.DEPENDFILE
784 # This is a final opportunity to add/hook global rules.
785 .-include <local.dirdeps-build.mk>
787 # skip _reldir_{finish,failed} if not included from Makefile.depend*
788 # or not in meta mode
789 .if !defined(WITHOUT_META_STATS) && ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" && ${.MAKE.MODE:Mmeta} != ""
791 meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \
792 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}}
794 .if !target(_reldir_finish)
796 _reldir_finish: .NOMETA
797 @echo "${TRACER}Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
800 .if !target(_reldir_failed)
801 .ERROR: _reldir_failed
802 _reldir_failed: .NOMETA
803 @echo "${TRACER}Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}"
808 # pickup local dependencies
809 .if ${MAKE_VERSION} < 20160220
816 # bootstrapping new dependencies made easy?
817 .if !target(bootstrap) && (make(bootstrap) || \
818 make(bootstrap-this) || \
819 make(bootstrap-recurse) || \
820 make(bootstrap-empty))
822 # if we are bootstrapping create the default
823 _want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T}
828 .elif !make(bootstrap-empty)
829 # find a Makefile.depend to use as _src
830 _src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo
832 .error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty
835 _src?= ${.MAKE.DEPENDFILE}
837 .MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g'
839 # just create Makefile.depend* for this dir
840 bootstrap-this: .NOTMAIN
841 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \
842 echo You need to build ${RELDIR} to correctly populate it.
843 .if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T}
844 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T})
846 cp ${.CURDIR}/${_src:T} ${_want}
849 # create Makefile.depend* for this dir and its dependencies
850 bootstrap: bootstrap-recurse
851 bootstrap-recurse: bootstrap-this
854 bootstrap-recurse: .NOTMAIN .MAKE
856 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \
857 test -d $$d || d=$${d%.*}; \
858 test -d $$d || continue; \
859 echo "Checking $$d for bootstrap ..."; \
860 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \
865 # create an empty Makefile.depend* to get the ball rolling.
866 bootstrap-empty: .NOTMAIN .NOMETA
867 @echo Creating empty ${RELDIR}/${_want:T}; \
868 echo You need to build ${RELDIR} to correctly populate it.
869 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want}