dirdeps.mk revision 297040
1# $Id: dirdeps.mk,v 1.62 2016/03/16 00:11:53 sjg Exp $ 2 3# Copyright (c) 2010-2013, Juniper Networks, Inc. 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 27# Much of the complexity here is for supporting cross-building. 28# If a tree does not support that, simply using plain Makefile.depend 29# should provide sufficient clue. 30# Otherwise the recommendation is to use Makefile.depend.${MACHINE} 31# as expected below. 32 33# Note: this file gets multiply included. 34# This is what we do with DIRDEPS 35 36# DIRDEPS: 37# This is a list of directories - relative to SRCTOP, it is 38# normally only of interest to .MAKE.LEVEL 0. 39# In some cases the entry may be qualified with a .<machine> 40# or .<target_spec> suffix (see TARGET_SPEC_VARS below), 41# for example to force building something for the pseudo 42# machines "host" or "common" regardless of current ${MACHINE}. 43# 44# All unqualified entries end up being qualified with .${TARGET_SPEC} 45# and partially qualified (if TARGET_SPEC_VARS has multiple 46# entries) are also expanded to a full .<target_spec>. 47# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC 48# correctly when visiting each entry. 49# 50# The fully qualified directory entries are used to construct a 51# dependency graph that will drive the build later. 52# 53# Also, for each fully qualified directory target, we will search 54# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional 55# dependencies. We use Makefile.depend (default value for 56# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to 57# distinguish them from others. 58# 59# Each Makefile.depend file sets DEP_RELDIR to be the 60# the RELDIR (path relative to SRCTOP) for its directory, and 61# since each Makefile.depend file includes dirdeps.mk, this 62# processing is recursive and results in .MAKE.LEVEL 0 learning the 63# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 64# 65# BUILD_AT_LEVEL0 66# Indicates whether .MAKE.LEVEL 0 builds anything: 67# if "no" sub-makes are used to build everything, 68# if "yes" sub-makes are only used to build for other machines. 69# It is best to use "no", but this can require fixing some 70# makefiles to not do anything at .MAKE.LEVEL 0. 71# 72# TARGET_SPEC_VARS 73# The default value is just MACHINE, and for most environments 74# this is sufficient. The _DIRDEP_USE target actually sets 75# both MACHINE and TARGET_SPEC to the suffix of the current 76# target so that in the general case TARGET_SPEC can be ignored. 77# 78# If more than MACHINE is needed then sys.mk needs to decompose 79# TARGET_SPEC and set the relevant variables accordingly. 80# It is important that MACHINE be included in and actually be 81# the first member of TARGET_SPEC_VARS. This allows other 82# variables to be considered optional, and some of the treatment 83# below relies on MACHINE being the first entry. 84# Note: TARGET_SPEC cannot contain any '.'s so the target 85# triple used by compiler folk won't work (directly anyway). 86# 87# For example: 88# 89# # Always list MACHINE first, 90# # other variables might be optional. 91# TARGET_SPEC_VARS = MACHINE TARGET_OS 92# .if ${TARGET_SPEC:Uno:M*,*} != "" 93# _tspec := ${TARGET_SPEC:S/,/ /g} 94# MACHINE := ${_tspec:[1]} 95# TARGET_OS := ${_tspec:[2]} 96# # etc. 97# # We need to stop that TARGET_SPEC affecting any submakes 98# # and deal with MACHINE=${TARGET_SPEC} in the environment. 99# TARGET_SPEC = 100# # export but do not track 101# .export-env TARGET_SPEC 102# .export ${TARGET_SPEC_VARS} 103# .for v in ${TARGET_SPEC_VARS:O:u} 104# .if empty($v) 105# .undef $v 106# .endif 107# .endfor 108# .endif 109# # make sure we know what TARGET_SPEC is 110# # as we may need it to find Makefile.depend* 111# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 112# 113 114# touch this at your peril 115_DIRDEP_USE_LEVEL?= 0 116.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 117# only the first instance is interested in all this 118 119# First off, we want to know what ${MACHINE} to build for. 120# This can be complicated if we are using a mixture of ${MACHINE} specific 121# and non-specific Makefile.depend* 122 123.if !target(_DIRDEP_USE) 124# make sure we get the behavior we expect 125.MAKE.SAVE_DOLLARS = no 126 127# do some setup we only need once 128_CURDIR ?= ${.CURDIR} 129_OBJDIR ?= ${.OBJDIR} 130 131now_utc = ${%s:L:gmtime} 132.if !defined(start_utc) 133start_utc := ${now_utc} 134.endif 135 136# make sure these are empty to start with 137_DEP_TARGET_SPEC = 138 139# If TARGET_SPEC_VARS is other than just MACHINE 140# it should be set by sys.mk or similar by now. 141# TARGET_SPEC must not contain any '.'s. 142TARGET_SPEC_VARS ?= MACHINE 143# this is what we started with 144TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 145# this is what we mostly use below 146DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 147# make sure we have defaults 148.for v in ${TARGET_SPEC_VARS} 149DEP_$v ?= ${$v} 150.endfor 151 152.if ${TARGET_SPEC_VARS:[#]} > 1 153# Ok, this gets more complex (putting it mildly). 154# In order to stay sane, we need to ensure that all the build_dirs 155# we compute below are fully qualified wrt DEP_TARGET_SPEC. 156# The makefiles may only partially specify (eg. MACHINE only), 157# so we need to construct a set of modifiers to fill in the gaps. 158# jot 10 should output 1 2 3 .. 10 159JOT ?= jot 160_tspec_x := ${${JOT} ${TARGET_SPEC_VARS:[#]}:L:sh} 161# this handles unqualified entries 162M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 163# there needs to be at least one item missing for these to make sense 164.for i in ${_tspec_x:[2..-1]} 165_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 166_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 167M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 168.endfor 169.else 170# A harmless? default. 171M_dep_qual_fixes = U 172.endif 173 174.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 175# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 176# you really want this set by sys.mk or similar 177.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 178.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 179.if ${TARGET_SPEC} != ${MACHINE} 180.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 181.endif 182.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 183.endif 184.endif 185 186_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 187_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 188 189# for machine specific dependfiles we require ${MACHINE} to be at the end 190# also for the sake of sanity we require a common prefix 191.if !defined(.MAKE.DEPENDFILE_PREFIX) 192# knowing .MAKE.DEPENDFILE_PREFIX helps 193.if !empty(_machine_dependfiles) 194.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 195.else 196.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 197.endif 198.endif 199 200 201# this is how we identify non-machine specific dependfiles 202N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 203 204.endif # !target(_DIRDEP_USE) 205 206# if we were included recursively _DEP_TARGET_SPEC should be valid. 207.if empty(_DEP_TARGET_SPEC) 208# we may or may not have included a dependfile yet 209.if defined(.INCLUDEDFROMFILE) 210_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 211.else 212_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 213.endif 214.if ${_debug_reldir:U0} 215.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 216.endif 217 218.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 219# this is all we have to work with 220DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 221_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 222.else 223_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 224.endif 225.if !empty(_last_dependfile) 226# record that we've read dependfile for this 227_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 228.endif 229.endif 230 231# by now _DEP_TARGET_SPEC should be set, parse it. 232.if ${TARGET_SPEC_VARS:[#]} > 1 233# we need to parse DEP_MACHINE may or may not contain more info 234_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 235.for i in ${_tspec_x} 236DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 237.endfor 238.for v in ${TARGET_SPEC_VARS:O:u} 239.if empty(DEP_$v) 240.undef DEP_$v 241.endif 242.endfor 243.else 244DEP_MACHINE := ${_DEP_TARGET_SPEC} 245.endif 246 247.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 248# This little trick let's us do 249# 250# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 251# 252all: 253${.TARGETS:Nall}: all 254DIRDEPS := ${.TARGETS:M*/*} 255# so that -DNO_DIRDEPS works 256DEP_RELDIR := ${DIRDEPS:R:[1]} 257# disable DIRDEPS_CACHE as it does not like this trick 258MK_DIRDEPS_CACHE = no 259.endif 260 261# reset each time through 262_build_all_dirs = 263 264# the first time we are included the _DIRDEP_USE target will not be defined 265# we can use this as a clue to do initialization and other one time things. 266.if !target(_DIRDEP_USE) 267# make sure this target exists 268dirdeps: beforedirdeps .WAIT 269beforedirdeps: 270 271# We normally expect to be included by Makefile.depend.* 272# which sets the DEP_* macros below. 273DEP_RELDIR ?= ${RELDIR} 274 275# this can cause lots of output! 276# set to a set of glob expressions that might match RELDIR 277DEBUG_DIRDEPS ?= no 278 279# remember the initial value of DEP_RELDIR - we test for it below. 280_DEP_RELDIR := ${DEP_RELDIR} 281 282.endif 283 284# pickup customizations 285# as below you can use !target(_DIRDEP_USE) to protect things 286# which should only be done once. 287.-include "local.dirdeps.mk" 288 289.if !target(_DIRDEP_USE) 290# things we skip for host tools 291SKIP_HOSTDIR ?= 292 293NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 294 295# things we always skip 296# SKIP_DIRDEPS allows for adding entries on command line. 297SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 298SKIP_DIR.host += ${SKIP_HOSTDIR} 299 300DEP_SKIP_DIR = ${SKIP_DIR} \ 301 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 302 ${SKIP_DIR.${DEP_MACHINE}:U} \ 303 ${SKIP_DIRDEPS.${DEP_MACHINE}:U} 304 305NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 306 307.if defined(NO_DIRDEPS) || defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 308# confine ourselves to the original dir and below. 309DIRDEPS_FILTER += M${_DEP_RELDIR}* 310.elif defined(NO_DIRDEPS_BELOW) 311DIRDEPS_FILTER += M${_DEP_RELDIR} 312.endif 313 314# this is what we run below 315DIRDEP_MAKE?= ${.MAKE} 316 317# we suppress SUBDIR when visiting the leaves 318# we assume sys.mk will set MACHINE_ARCH 319# you can add extras to DIRDEP_USE_ENV 320# if there is no makefile in the target directory, we skip it. 321_DIRDEP_USE: .USE .MAKE 322 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 323 test -s ${.TARGET:R}/$$m || continue; \ 324 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 325 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 326 TARGET_SPEC=${.TARGET:E} \ 327 MACHINE=${.TARGET:E} \ 328 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 329 break; \ 330 done 331 332.ifdef ALL_MACHINES 333# this is how you limit it to only the machines we have been built for 334# previously. 335.if empty(ONLY_MACHINE_LIST) 336.if !empty(ALL_MACHINE_LIST) 337# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 338_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 339.else 340_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 341.endif 342_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 343.else 344_only_machines := ${ONLY_MACHINE_LIST} 345.endif 346 347.if empty(_only_machines) 348# we must be boot-strapping 349_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 350.endif 351 352.else # ! ALL_MACHINES 353# if ONLY_MACHINE_LIST is set, we are limited to that 354# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 355# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 356_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 357.endif 358 359.if !empty(NOT_MACHINE_LIST) 360_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 361.endif 362 363# make sure we have a starting place? 364DIRDEPS ?= ${RELDIR} 365.endif # target 366 367# if repeatedly building the same target, 368# we can avoid the overhead of re-computing the tree dependencies. 369MK_DIRDEPS_CACHE ?= no 370BUILD_DIRDEPS_CACHE ?= no 371BUILD_DIRDEPS ?= yes 372 373.if !defined(NO_DIRDEPS) 374.if ${MK_DIRDEPS_CACHE} == "yes" 375# this is where we will cache all our work 376DIRDEPS_CACHE?= ${_OBJDIR}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 377 378# just ensure this exists 379build-dirdeps: 380 381M_oneperline = @x@\\${.newline} $$x@ 382 383.if ${BUILD_DIRDEPS_CACHE} == "no" 384.if !target(dirdeps-cached) 385# we do this via sub-make 386BUILD_DIRDEPS = no 387 388dirdeps: dirdeps-cached 389dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 390 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 391 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 392 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 393 394# these should generally do 395BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 396BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 397 398# we need the .meta file to ensure we update if 399# any of the Makefile.depend* changed. 400# We do not want to compare the command line though. 401${DIRDEPS_CACHE}: .META .NOMETA_CMP 402 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 403 echo 'BUILD_DIRDEPS=no'; echo; \ 404 echo '.include <dirdeps.mk>'; \ 405 } > ${.TARGET}.new 406 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 407 DIRDEPS="${DIRDEPS}" \ 408 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 409 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 410 .MAKE.DEPENDFILE=.none \ 411 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 412 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 413 mv ${.TARGET}.new ${.TARGET} 414 415.endif 416.elif !target(_count_dirdeps) 417# we want to capture the dirdeps count in the cache 418.END: _count_dirdeps 419_count_dirdeps: .NOMETA 420 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 421 422.endif 423.elif !make(dirdeps) && !target(_count_dirdeps) 424beforedirdeps: _count_dirdeps 425_count_dirdeps: .NOMETA 426 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 427 428.endif 429.endif 430 431.if ${BUILD_DIRDEPS} == "yes" 432.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 433_debug_reldir = 1 434.else 435_debug_reldir = 0 436.endif 437.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 438_debug_search = 1 439.else 440_debug_search = 0 441.endif 442 443# the rest is done repeatedly for every Makefile.depend we read. 444# if we are anything but the original dir we care only about the 445# machine type we were included for.. 446 447.if ${DEP_RELDIR} == "." 448_this_dir := ${SRCTOP} 449.else 450_this_dir := ${SRCTOP}/${DEP_RELDIR} 451.endif 452 453# on rare occasions, there can be a need for extra help 454_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 455.-include "${_dep_hack}" 456 457.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 458# this should be all 459_machines := ${DEP_MACHINE} 460.else 461# this is the machine list we actually use below 462_machines := ${_only_machines} 463 464.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 465# we need to build this guy's dependencies for host as well. 466_machines += host 467.endif 468 469_machines := ${_machines:O:u} 470.endif 471 472.if ${TARGET_SPEC_VARS:[#]} > 1 473# we need to tweak _machines 474_dm := ${DEP_MACHINE} 475# apply the same filtering that we do when qualifying DIRDEPS. 476# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 477_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 478DEP_MACHINE := ${_dm} 479.endif 480 481# reset each time through 482_build_dirs = 483 484.if ${DEP_RELDIR} == ${_DEP_RELDIR} 485# pickup other machines for this dir if necessary 486.if ${BUILD_AT_LEVEL0:Uyes} == "no" 487_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 488.else 489_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 490.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 491# pickup local dependencies now 492.if ${MAKE_VERSION} < 20160220 493.-include <.depend> 494.else 495.dinclude <.depend> 496.endif 497.endif 498.endif 499.endif 500 501.if ${_debug_reldir} 502.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 503.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 504.endif 505 506.if !empty(DIRDEPS) 507# these we reset each time through as they can depend on DEP_MACHINE 508DEP_DIRDEPS_FILTER = \ 509 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 510 ${DIRDEPS_FILTER.${DEP_MACHINE}:U} \ 511 ${DIRDEPS_FILTER:U} 512.if empty(DEP_DIRDEPS_FILTER) 513# something harmless 514DEP_DIRDEPS_FILTER = U 515.endif 516 517# this is what we start with 518__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 519 520# some entries may be qualified with .<machine> 521# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 522# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 523__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 524__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 525 526.if ${DEP_RELDIR} == ${_DEP_RELDIR} 527# if it was called out - we likely need it. 528__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 529__qual_depdirs += ${__hostdpadd} 530.endif 531 532.if ${_debug_reldir} 533.info depdirs=${__depdirs} 534.info qualified=${__qual_depdirs} 535.info unqualified=${__unqual_depdirs} 536.endif 537 538# _build_dirs is what we will feed to _DIRDEP_USE 539_build_dirs += \ 540 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 541 ${__qual_depdirs:N*.host} \ 542 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 543 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 544 545# qualify everything now 546_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 547 548_build_all_dirs += ${_build_dirs} 549_build_all_dirs := ${_build_all_dirs:O:u} 550 551.endif # empty DIRDEPS 552 553# Normally if doing make -V something, 554# we do not want to waste time chasing DIRDEPS 555# but if we want to count the number of Makefile.depend* read, we do. 556.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 557.if !empty(_build_all_dirs) 558.if ${BUILD_DIRDEPS_CACHE} == "yes" 559x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 560 echo 'dirdeps: ${_build_all_dirs:${M_oneperline}}'; echo; } >&3; echo 561x!= { ${_build_all_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 562.else 563# this makes it all happen 564dirdeps: ${_build_all_dirs} 565.endif 566${_build_all_dirs}: _DIRDEP_USE 567 568.if ${_debug_reldir} 569.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 570.endif 571 572# this builds the dependency graph 573.for m in ${_machines} 574# it would be nice to do :N${.TARGET} 575.if !empty(__qual_depdirs) 576.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 577.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 578.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 579.endif 580.if ${BUILD_DIRDEPS_CACHE} == "yes" 581x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 582.else 583${_this_dir}.$m: ${_build_dirs:M*.$q} 584.endif 585.endfor 586.endif 587.if ${_debug_reldir} 588.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 589.endif 590.if ${BUILD_DIRDEPS_CACHE} == "yes" 591x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 592.else 593${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 594.endif 595.endfor 596 597.endif 598 599# Now find more dependencies - and recurse. 600.for d in ${_build_all_dirs} 601.if !target(_dirdeps_checked.$d) 602# once only 603_dirdeps_checked.$d: 604.if ${_debug_search} 605.info checking $d 606.endif 607# Note: _build_all_dirs is fully qualifed so d:R is always the directory 608.if exists(${d:R}) 609# Warning: there is an assumption here that MACHINE is always 610# the first entry in TARGET_SPEC_VARS. 611# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 612_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 613.if !empty(_m) 614# M_dep_qual_fixes isn't geared to Makefile.depend 615_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 616.if ${_debug_search} 617.info Looking for ${_qm} 618.endif 619# we pass _DEP_TARGET_SPEC to tell the next step what we want 620_DEP_TARGET_SPEC := ${d:E} 621# some makefiles may still look at this 622_DEP_MACHINE := ${d:E:C/,.*//} 623# set this "just in case" 624# we can skip :tA since we computed the path above 625DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 626# and reset this 627DIRDEPS = 628.if ${_debug_reldir} && ${_qm} != ${_m} 629.info loading ${_m} for ${d:E} 630.endif 631.include <${_m}> 632.endif 633.endif 634.endif 635.endfor 636 637.endif # -V 638.endif # BUILD_DIRDEPS 639 640.elif ${.MAKE.LEVEL} > 42 641.error You should have stopped recursing by now. 642.else 643# we are building something 644DEP_RELDIR := ${RELDIR} 645_DEP_RELDIR := ${RELDIR} 646# pickup local dependencies 647.if ${MAKE_VERSION} < 20160220 648.-include <.depend> 649.else 650.dinclude <.depend> 651.endif 652.endif 653 654# bootstrapping new dependencies made easy? 655.if !target(bootstrap) && (make(bootstrap) || \ 656 make(bootstrap-this) || \ 657 make(bootstrap-recurse) || \ 658 make(bootstrap-empty)) 659 660.if exists(${.CURDIR}/${.MAKE.DEPENDFILE:T}) 661# stop here 662${.TARGETS:Mboot*}: 663.elif !make(bootstrap-empty) 664# find a Makefile.depend to use as _src 665_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 666.if empty(_src) 667.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 668.endif 669 670_src?= ${.MAKE.DEPENDFILE:T} 671 672# just create Makefile.depend* for this dir 673bootstrap-this: .NOTMAIN 674 @echo Bootstrapping ${RELDIR}/${.MAKE.DEPENDFILE:T} from ${_src:T} 675 (cd ${.CURDIR} && sed 's,${_src:E},${MACHINE},g' ${_src} > ${.MAKE.DEPENDFILE:T}) 676 677# create Makefile.depend* for this dir and its dependencies 678bootstrap: bootstrap-recurse 679bootstrap-recurse: bootstrap-this 680 681_mf := ${.PARSEFILE} 682bootstrap-recurse: .NOTMAIN .MAKE 683 @cd ${SRCTOP} && \ 684 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 685 test -d $$d || d=$${d%.*}; \ 686 test -d $$d || continue; \ 687 echo "Checking $$d for bootstrap ..."; \ 688 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 689 done 690 691.endif 692 693# create an empty Makefile.depend* to get the ball rolling. 694bootstrap-empty: .NOTMAIN .NOMETA 695 @echo Creating empty ${RELDIR}/${.MAKE.DEPENDFILE:T}; \ 696 echo You need to build ${RELDIR} to correctly populate it. 697 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${.CURDIR}/${.MAKE.DEPENDFILE:T} 698 699.endif 700