1# $FreeBSD$ 2# $Id: dirdeps.mk,v 1.73 2016/08/15 19:28:13 sjg Exp $ 3 4# Copyright (c) 2010-2013, Juniper Networks, Inc. 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 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. 15# 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. 27 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} 32# as expected below. 33 34# Note: this file gets multiply included. 35# This is what we do with DIRDEPS 36 37# 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 ${MACHINE}. 44# 45# All unqualified entries end up being qualified with .${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. 50# 51# The fully qualified directory entries are used to construct a 52# dependency graph that will drive the build later. 53# 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. 59# 60# Each Makefile.depend file sets DEP_RELDIR to be the 61# the RELDIR (path relative to SRCTOP) for its directory, and 62# since each Makefile.depend file includes dirdeps.mk, this 63# processing is recursive and results in .MAKE.LEVEL 0 learning the 64# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 65# 66# BUILD_AT_LEVEL0 67# Indicates whether .MAKE.LEVEL 0 builds anything: 68# if "no" sub-makes are used to build everything, 69# if "yes" sub-makes are only used to build for other machines. 70# It is best to use "no", but this can require fixing some 71# makefiles to not do anything at .MAKE.LEVEL 0. 72# 73# TARGET_SPEC_VARS 74# The default value is just MACHINE, and for most environments 75# this is sufficient. The _DIRDEP_USE target actually sets 76# both MACHINE and TARGET_SPEC to the suffix of the current 77# target so that in the general case TARGET_SPEC can be ignored. 78# 79# If more than MACHINE is needed then sys.mk needs to decompose 80# TARGET_SPEC and set the relevant variables accordingly. 81# It is important that MACHINE be included in and actually be 82# the first member of TARGET_SPEC_VARS. This allows other 83# variables to be considered optional, and some of the treatment 84# below relies on MACHINE being the first entry. 85# Note: TARGET_SPEC cannot contain any '.'s so the target 86# triple used by compiler folk won't work (directly anyway). 87# 88# For example: 89# 90# # Always list MACHINE first, 91# # other variables might be optional. 92# TARGET_SPEC_VARS = MACHINE TARGET_OS 93# .if ${TARGET_SPEC:Uno:M*,*} != "" 94# _tspec := ${TARGET_SPEC:S/,/ /g} 95# MACHINE := ${_tspec:[1]} 96# TARGET_OS := ${_tspec:[2]} 97# # etc. 98# # We need to stop that TARGET_SPEC affecting any submakes 99# # and deal with MACHINE=${TARGET_SPEC} in the environment. 100# TARGET_SPEC = 101# # export but do not track 102# .export-env TARGET_SPEC 103# .export ${TARGET_SPEC_VARS} 104# .for v in ${TARGET_SPEC_VARS:O:u} 105# .if empty($v) 106# .undef $v 107# .endif 108# .endfor 109# .endif 110# # make sure we know what TARGET_SPEC is 111# # as we may need it to find Makefile.depend* 112# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 113# 114 115# touch this at your peril 116_DIRDEP_USE_LEVEL?= 0 117.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 118# only the first instance is interested in all this 119 120.if !target(_DIRDEP_USE) 121 122# do some setup we only need once 123_CURDIR ?= ${.CURDIR} 124_OBJDIR ?= ${.OBJDIR} 125 126now_utc = ${%s:L:gmtime} 127.if !defined(start_utc) 128start_utc := ${now_utc} 129.endif 130 131.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 132# This little trick let's us do 133# 134# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 135# 136all: 137${.TARGETS:Nall}: all 138DIRDEPS := ${.TARGETS:M*[/.]*} 139# so that -DNO_DIRDEPS works 140DEP_RELDIR := ${DIRDEPS:[1]:R} 141# this will become DEP_MACHINE below 142TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 143.if ${TARGET_MACHINE:N*/*} == "" 144TARGET_MACHINE := ${MACHINE} 145.endif 146# disable DIRDEPS_CACHE as it does not like this trick 147MK_DIRDEPS_CACHE = no 148.endif 149 150# make sure we get the behavior we expect 151.MAKE.SAVE_DOLLARS = no 152 153# make sure these are empty to start with 154_DEP_TARGET_SPEC = 155 156# If TARGET_SPEC_VARS is other than just MACHINE 157# it should be set by sys.mk or similar by now. 158# TARGET_SPEC must not contain any '.'s. 159TARGET_SPEC_VARS ?= MACHINE 160# this is what we started with 161TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 162# this is what we mostly use below 163DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 164# make sure we have defaults 165.for v in ${TARGET_SPEC_VARS} 166DEP_$v ?= ${$v} 167.endfor 168 169.if ${TARGET_SPEC_VARS:[#]} > 1 170# Ok, this gets more complex (putting it mildly). 171# In order to stay sane, we need to ensure that all the build_dirs 172# we compute below are fully qualified wrt DEP_TARGET_SPEC. 173# The makefiles may only partially specify (eg. MACHINE only), 174# so we need to construct a set of modifiers to fill in the gaps. 175# jot 10 should output 1 2 3 .. 10 176JOT ?= jot 177_tspec_x := ${${JOT} ${TARGET_SPEC_VARS:[#]}:L:sh} 178# this handles unqualified entries 179M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 180# there needs to be at least one item missing for these to make sense 181.for i in ${_tspec_x:[2..-1]} 182_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 183_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 184M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 185.endfor 186.else 187# A harmless? default. 188M_dep_qual_fixes = U 189.endif 190 191.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 192# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 193# you really want this set by sys.mk or similar 194.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 195.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 196.if ${TARGET_SPEC} != ${MACHINE} 197.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 198.endif 199.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 200.endif 201.endif 202 203_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 204_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 205 206# for machine specific dependfiles we require ${MACHINE} to be at the end 207# also for the sake of sanity we require a common prefix 208.if !defined(.MAKE.DEPENDFILE_PREFIX) 209# knowing .MAKE.DEPENDFILE_PREFIX helps 210.if !empty(_machine_dependfiles) 211.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 212.else 213.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 214.endif 215.endif 216 217 218# this is how we identify non-machine specific dependfiles 219N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 220 221.endif # !target(_DIRDEP_USE) 222 223# First off, we want to know what ${MACHINE} to build for. 224# This can be complicated if we are using a mixture of ${MACHINE} specific 225# and non-specific Makefile.depend* 226 227# if we were included recursively _DEP_TARGET_SPEC should be valid. 228.if empty(_DEP_TARGET_SPEC) 229# we may or may not have included a dependfile yet 230.if defined(.INCLUDEDFROMFILE) 231_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 232.else 233_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 234.endif 235.if ${_debug_reldir:U0} 236.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 237.endif 238 239.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 240# this is all we have to work with 241DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 242_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 243.else 244_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 245.endif 246.if !empty(_last_dependfile) 247# record that we've read dependfile for this 248_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 249.endif 250.endif 251 252# by now _DEP_TARGET_SPEC should be set, parse it. 253.if ${TARGET_SPEC_VARS:[#]} > 1 254# we need to parse DEP_MACHINE may or may not contain more info 255_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 256.for i in ${_tspec_x} 257DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 258.endfor 259.for v in ${TARGET_SPEC_VARS:O:u} 260.if empty(DEP_$v) 261.undef DEP_$v 262.endif 263.endfor 264.else 265DEP_MACHINE := ${_DEP_TARGET_SPEC} 266.endif 267 268# reset each time through 269_build_all_dirs = 270 271# the first time we are included the _DIRDEP_USE target will not be defined 272# we can use this as a clue to do initialization and other one time things. 273.if !target(_DIRDEP_USE) 274# make sure this target exists 275dirdeps: beforedirdeps .WAIT 276beforedirdeps: 277 278# We normally expect to be included by Makefile.depend.* 279# which sets the DEP_* macros below. 280DEP_RELDIR ?= ${RELDIR} 281 282# this can cause lots of output! 283# set to a set of glob expressions that might match RELDIR 284DEBUG_DIRDEPS ?= no 285 286# remember the initial value of DEP_RELDIR - we test for it below. 287_DEP_RELDIR := ${DEP_RELDIR} 288 289.endif 290 291# pickup customizations 292# as below you can use !target(_DIRDEP_USE) to protect things 293# which should only be done once. 294.-include <local.dirdeps.mk> 295 296.if !target(_DIRDEP_USE) 297# things we skip for host tools 298SKIP_HOSTDIR ?= 299 300NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 301 302# things we always skip 303# SKIP_DIRDEPS allows for adding entries on command line. 304SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 305SKIP_DIR.host += ${SKIP_HOSTDIR} 306 307DEP_SKIP_DIR = ${SKIP_DIR} \ 308 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 309 ${SKIP_DIR.${DEP_MACHINE}:U} \ 310 ${SKIP_DIRDEPS.${DEP_MACHINE}:U} 311 312NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 313 314.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 315NO_DIRDEPS = 316.elif defined(WITHOUT_DIRDEPS_BELOW) 317NO_DIRDEPS_BELOW = 318.endif 319 320.if defined(NO_DIRDEPS) 321# confine ourselves to the original dir and below. 322DIRDEPS_FILTER += M${_DEP_RELDIR}* 323.elif defined(NO_DIRDEPS_BELOW) 324DIRDEPS_FILTER += M${_DEP_RELDIR} 325.endif 326 327# this is what we run below 328DIRDEP_MAKE?= ${.MAKE} 329 330# we suppress SUBDIR when visiting the leaves 331# we assume sys.mk will set MACHINE_ARCH 332# you can add extras to DIRDEP_USE_ENV 333# if there is no makefile in the target directory, we skip it. 334_DIRDEP_USE: .USE .MAKE 335 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 336 test -s ${.TARGET:R}/$$m || continue; \ 337 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 338 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 339 TARGET_SPEC=${.TARGET:E} \ 340 MACHINE=${.TARGET:E} \ 341 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 342 break; \ 343 done 344 345.ifdef ALL_MACHINES 346# this is how you limit it to only the machines we have been built for 347# previously. 348.if empty(ONLY_MACHINE_LIST) 349.if !empty(ALL_MACHINE_LIST) 350# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 351_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 352.else 353_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 354.endif 355_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 356.else 357_only_machines := ${ONLY_MACHINE_LIST} 358.endif 359 360.if empty(_only_machines) 361# we must be boot-strapping 362_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 363.endif 364 365.else # ! ALL_MACHINES 366# if ONLY_MACHINE_LIST is set, we are limited to that 367# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 368# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 369_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 370.endif 371 372.if !empty(NOT_MACHINE_LIST) 373_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 374.endif 375 376# make sure we have a starting place? 377DIRDEPS ?= ${RELDIR} 378.endif # target 379 380# if repeatedly building the same target, 381# we can avoid the overhead of re-computing the tree dependencies. 382MK_DIRDEPS_CACHE ?= no 383BUILD_DIRDEPS_CACHE ?= no 384BUILD_DIRDEPS ?= yes 385 386.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 387.if ${MK_DIRDEPS_CACHE} == "yes" 388# this is where we will cache all our work 389DIRDEPS_CACHE?= ${_OBJDIR:tA}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 390 391# just ensure this exists 392build-dirdeps: 393 394M_oneperline = @x@\\${.newline} $$x@ 395 396.if ${BUILD_DIRDEPS_CACHE} == "no" 397.if !target(dirdeps-cached) 398# we do this via sub-make 399BUILD_DIRDEPS = no 400 401# ignore anything but these 402.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 403 404dirdeps: dirdeps-cached 405dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 406 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 407 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 408 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 409 410# these should generally do 411BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 412BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 413 414# we need the .meta file to ensure we update if 415# any of the Makefile.depend* changed. 416# We do not want to compare the command line though. 417${DIRDEPS_CACHE}: .META .NOMETA_CMP 418 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 419 echo 'BUILD_DIRDEPS=no'; echo; \ 420 echo '.include <dirdeps.mk>'; \ 421 } > ${.TARGET}.new 422 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 423 DIRDEPS="${DIRDEPS}" \ 424 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 425 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 426 .MAKE.DEPENDFILE=.none \ 427 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 428 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 429 mv ${.TARGET}.new ${.TARGET} 430 431.endif 432.elif !target(_count_dirdeps) 433# we want to capture the dirdeps count in the cache 434.END: _count_dirdeps 435_count_dirdeps: .NOMETA 436 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 437 438.endif 439.elif !make(dirdeps) && !target(_count_dirdeps) 440beforedirdeps: _count_dirdeps 441_count_dirdeps: .NOMETA 442 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 443 444.endif 445.endif 446 447.if ${BUILD_DIRDEPS} == "yes" 448.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 449_debug_reldir = 1 450.else 451_debug_reldir = 0 452.endif 453.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 454_debug_search = 1 455.else 456_debug_search = 0 457.endif 458 459# the rest is done repeatedly for every Makefile.depend we read. 460# if we are anything but the original dir we care only about the 461# machine type we were included for.. 462 463.if ${DEP_RELDIR} == "." 464_this_dir := ${SRCTOP} 465.else 466_this_dir := ${SRCTOP}/${DEP_RELDIR} 467.endif 468 469# on rare occasions, there can be a need for extra help 470_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 471.-include <${_dep_hack}> 472 473.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 474# this should be all 475_machines := ${DEP_MACHINE} 476.else 477# this is the machine list we actually use below 478_machines := ${_only_machines} 479 480.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 481# we need to build this guy's dependencies for host as well. 482_machines += host 483.endif 484 485_machines := ${_machines:O:u} 486.endif 487 488.if ${TARGET_SPEC_VARS:[#]} > 1 489# we need to tweak _machines 490_dm := ${DEP_MACHINE} 491# apply the same filtering that we do when qualifying DIRDEPS. 492# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 493_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 494DEP_MACHINE := ${_dm} 495.endif 496 497# reset each time through 498_build_dirs = 499 500.if ${DEP_RELDIR} == ${_DEP_RELDIR} 501# pickup other machines for this dir if necessary 502.if ${BUILD_AT_LEVEL0:Uyes} == "no" 503_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 504.else 505_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 506.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 507# pickup local dependencies now 508.if ${MAKE_VERSION} < 20160220 509.-include <.depend> 510.else 511.dinclude <.depend> 512.endif 513.endif 514.endif 515.endif 516 517.if ${_debug_reldir} 518.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 519.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 520.endif 521 522.if !empty(DIRDEPS) 523# these we reset each time through as they can depend on DEP_MACHINE 524DEP_DIRDEPS_FILTER = \ 525 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 526 ${DIRDEPS_FILTER.${DEP_MACHINE}:U} \ 527 ${DIRDEPS_FILTER:U} 528.if empty(DEP_DIRDEPS_FILTER) 529# something harmless 530DEP_DIRDEPS_FILTER = U 531.endif 532 533# this is what we start with 534__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 535 536# some entries may be qualified with .<machine> 537# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 538# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 539__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 540__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 541 542.if ${DEP_RELDIR} == ${_DEP_RELDIR} 543# if it was called out - we likely need it. 544__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 545__qual_depdirs += ${__hostdpadd} 546.endif 547 548.if ${_debug_reldir} 549.info depdirs=${__depdirs} 550.info qualified=${__qual_depdirs} 551.info unqualified=${__unqual_depdirs} 552.endif 553 554# _build_dirs is what we will feed to _DIRDEP_USE 555_build_dirs += \ 556 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 557 ${__qual_depdirs:N*.host} \ 558 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 559 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 560 561# qualify everything now 562_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 563 564_build_all_dirs += ${_build_dirs} 565_build_all_dirs := ${_build_all_dirs:O:u} 566 567.endif # empty DIRDEPS 568 569# Normally if doing make -V something, 570# we do not want to waste time chasing DIRDEPS 571# but if we want to count the number of Makefile.depend* read, we do. 572.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 573.if !empty(_build_all_dirs) 574.if ${BUILD_DIRDEPS_CACHE} == "yes" 575x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 576 echo 'dirdeps: ${_build_all_dirs:${M_oneperline}}'; echo; } >&3; echo 577x!= { ${_build_all_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 578.else 579# this makes it all happen 580dirdeps: ${_build_all_dirs} 581.endif 582${_build_all_dirs}: _DIRDEP_USE 583 584.if ${_debug_reldir} 585.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 586.endif 587 588# this builds the dependency graph 589.for m in ${_machines} 590# it would be nice to do :N${.TARGET} 591.if !empty(__qual_depdirs) 592.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 593.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 594.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 595.endif 596.if ${BUILD_DIRDEPS_CACHE} == "yes" 597x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 598.else 599${_this_dir}.$m: ${_build_dirs:M*.$q} 600.endif 601.endfor 602.endif 603.if ${_debug_reldir} 604.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 605.endif 606.if ${BUILD_DIRDEPS_CACHE} == "yes" 607x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 608.else 609${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 610.endif 611.endfor 612 613.endif 614 615# Now find more dependencies - and recurse. 616.for d in ${_build_all_dirs} 617.if !target(_dirdeps_checked.$d) 618# once only 619_dirdeps_checked.$d: 620.if ${_debug_search} 621.info checking $d 622.endif 623# Note: _build_all_dirs is fully qualifed so d:R is always the directory 624.if exists(${d:R}) 625# Warning: there is an assumption here that MACHINE is always 626# the first entry in TARGET_SPEC_VARS. 627# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 628_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 629.if !empty(_m) 630# M_dep_qual_fixes isn't geared to Makefile.depend 631_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 632.if ${_debug_search} 633.info Looking for ${_qm} 634.endif 635# we pass _DEP_TARGET_SPEC to tell the next step what we want 636_DEP_TARGET_SPEC := ${d:E} 637# some makefiles may still look at this 638_DEP_MACHINE := ${d:E:C/,.*//} 639# set this "just in case" 640# we can skip :tA since we computed the path above 641DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 642# and reset this 643DIRDEPS = 644.if ${_debug_reldir} && ${_qm} != ${_m} 645.info loading ${_m} for ${d:E} 646.endif 647.include <${_m}> 648.endif 649.endif 650.endif 651.endfor 652 653.endif # -V 654.endif # BUILD_DIRDEPS 655 656.elif ${.MAKE.LEVEL} > 42 657.error You should have stopped recursing by now. 658.else 659# we are building something 660DEP_RELDIR := ${RELDIR} 661_DEP_RELDIR := ${RELDIR} 662# pickup local dependencies 663.if ${MAKE_VERSION} < 20160220 664.-include <.depend> 665.else 666.dinclude <.depend> 667.endif 668.endif 669 670# bootstrapping new dependencies made easy? 671.if !target(bootstrap) && (make(bootstrap) || \ 672 make(bootstrap-this) || \ 673 make(bootstrap-recurse) || \ 674 make(bootstrap-empty)) 675 676# if we are bootstrapping create the default 677_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 678 679.if exists(${_want}) 680# stop here 681${.TARGETS:Mboot*}: 682.elif !make(bootstrap-empty) 683# find a Makefile.depend to use as _src 684_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 685.if empty(_src) 686.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 687.endif 688 689_src?= ${.MAKE.DEPENDFILE} 690 691.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's,${_src:E},${MACHINE},g' 692 693# just create Makefile.depend* for this dir 694bootstrap-this: .NOTMAIN 695 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 696 echo You need to build ${RELDIR} to correctly populate it. 697.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 698 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want}) 699.else 700 cp ${.CURDIR}/${_src:T} ${_want} 701.endif 702 703# create Makefile.depend* for this dir and its dependencies 704bootstrap: bootstrap-recurse 705bootstrap-recurse: bootstrap-this 706 707_mf := ${.PARSEFILE} 708bootstrap-recurse: .NOTMAIN .MAKE 709 @cd ${SRCTOP} && \ 710 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 711 test -d $$d || d=$${d%.*}; \ 712 test -d $$d || continue; \ 713 echo "Checking $$d for bootstrap ..."; \ 714 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 715 done 716 717.endif 718 719# create an empty Makefile.depend* to get the ball rolling. 720bootstrap-empty: .NOTMAIN .NOMETA 721 @echo Creating empty ${RELDIR}/${_want:T}; \ 722 echo You need to build ${RELDIR} to correctly populate it. 723 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 724 725.endif 726