1# $FreeBSD$ 2# $Id: dirdeps.mk,v 1.62 2016/03/16 00:11:53 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# First off, we want to know what ${MACHINE} to build for. 121# This can be complicated if we are using a mixture of ${MACHINE} specific 122# and non-specific Makefile.depend* 123 124.if !target(_DIRDEP_USE) 125 126.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 127# This little trick let's us do 128# 129# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 130# 131all: 132${.TARGETS:Nall}: all 133DIRDEPS := ${.TARGETS:M*[/.]*} 134# so that -DNO_DIRDEPS works 135DEP_RELDIR := ${DIRDEPS:[1]:R} 136# this will become DEP_MACHINE below 137TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 138# disable DIRDEPS_CACHE as it does not like this trick 139MK_DIRDEPS_CACHE = no 140.endif 141 142# make sure we get the behavior we expect 143.MAKE.SAVE_DOLLARS = no 144 145# do some setup we only need once 146_CURDIR ?= ${.CURDIR} 147_OBJDIR ?= ${.OBJDIR} 148 149now_utc = ${%s:L:gmtime} 150.if !defined(start_utc) 151start_utc := ${now_utc} 152.endif 153 154# make sure these are empty to start with 155_DEP_TARGET_SPEC = 156 157# If TARGET_SPEC_VARS is other than just MACHINE 158# it should be set by sys.mk or similar by now. 159# TARGET_SPEC must not contain any '.'s. 160TARGET_SPEC_VARS ?= MACHINE 161# this is what we started with 162TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 163# this is what we mostly use below 164DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 165# make sure we have defaults 166.for v in ${TARGET_SPEC_VARS} 167DEP_$v ?= ${$v} 168.endfor 169 170.if ${TARGET_SPEC_VARS:[#]} > 1 171# Ok, this gets more complex (putting it mildly). 172# In order to stay sane, we need to ensure that all the build_dirs 173# we compute below are fully qualified wrt DEP_TARGET_SPEC. 174# The makefiles may only partially specify (eg. MACHINE only), 175# so we need to construct a set of modifiers to fill in the gaps. 176# jot 10 should output 1 2 3 .. 10 177JOT ?= jot 178_tspec_x := ${${JOT} ${TARGET_SPEC_VARS:[#]}:L:sh} 179# this handles unqualified entries 180M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 181# there needs to be at least one item missing for these to make sense 182.for i in ${_tspec_x:[2..-1]} 183_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 184_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 185M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 186.endfor 187.else 188# A harmless? default. 189M_dep_qual_fixes = U 190.endif 191 192.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 193# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 194# you really want this set by sys.mk or similar 195.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 196.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 197.if ${TARGET_SPEC} != ${MACHINE} 198.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 199.endif 200.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 201.endif 202.endif 203 204_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 205_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 206 207# for machine specific dependfiles we require ${MACHINE} to be at the end 208# also for the sake of sanity we require a common prefix 209.if !defined(.MAKE.DEPENDFILE_PREFIX) 210# knowing .MAKE.DEPENDFILE_PREFIX helps 211.if !empty(_machine_dependfiles) 212.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 213.else 214.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 215.endif 216.endif 217 218 219# this is how we identify non-machine specific dependfiles 220N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 221 222.endif # !target(_DIRDEP_USE) 223 224# if we were included recursively _DEP_TARGET_SPEC should be valid. 225.if empty(_DEP_TARGET_SPEC) 226# we may or may not have included a dependfile yet 227.if defined(.INCLUDEDFROMFILE) 228_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 229.else 230_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 231.endif 232.if ${_debug_reldir:U0} 233.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 234.endif 235 236.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 237# this is all we have to work with 238DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 239_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 240.else 241_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 242.endif 243.if !empty(_last_dependfile) 244# record that we've read dependfile for this 245_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 246.endif 247.endif 248 249# by now _DEP_TARGET_SPEC should be set, parse it. 250.if ${TARGET_SPEC_VARS:[#]} > 1 251# we need to parse DEP_MACHINE may or may not contain more info 252_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 253.for i in ${_tspec_x} 254DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 255.endfor 256.for v in ${TARGET_SPEC_VARS:O:u} 257.if empty(DEP_$v) 258.undef DEP_$v 259.endif 260.endfor 261.else 262DEP_MACHINE := ${_DEP_TARGET_SPEC} 263.endif 264 265# reset each time through 266_build_all_dirs = 267 268# the first time we are included the _DIRDEP_USE target will not be defined 269# we can use this as a clue to do initialization and other one time things. 270.if !target(_DIRDEP_USE) 271# make sure this target exists 272dirdeps: beforedirdeps .WAIT 273beforedirdeps: 274 275# We normally expect to be included by Makefile.depend.* 276# which sets the DEP_* macros below. 277DEP_RELDIR ?= ${RELDIR} 278 279# this can cause lots of output! 280# set to a set of glob expressions that might match RELDIR 281DEBUG_DIRDEPS ?= no 282 283# remember the initial value of DEP_RELDIR - we test for it below. 284_DEP_RELDIR := ${DEP_RELDIR} 285 286.endif 287 288# pickup customizations 289# as below you can use !target(_DIRDEP_USE) to protect things 290# which should only be done once. 291.-include <local.dirdeps.mk> 292 293.if !target(_DIRDEP_USE) 294# things we skip for host tools 295SKIP_HOSTDIR ?= 296 297NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 298 299# things we always skip 300# SKIP_DIRDEPS allows for adding entries on command line. 301SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 302SKIP_DIR.host += ${SKIP_HOSTDIR} 303 304DEP_SKIP_DIR = ${SKIP_DIR} \ 305 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 306 ${SKIP_DIR.${DEP_MACHINE}:U} \ 307 ${SKIP_DIRDEPS.${DEP_MACHINE}:U} 308 309NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 310 311.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 312NO_DIRDEPS = 313.elif defined(WITHOUT_DIRDEPS_BELOW) 314NO_DIRDEPS_BELOW = 315.endif 316 317.if defined(NO_DIRDEPS) 318# confine ourselves to the original dir and below. 319DIRDEPS_FILTER += M${_DEP_RELDIR}* 320.elif defined(NO_DIRDEPS_BELOW) 321DIRDEPS_FILTER += M${_DEP_RELDIR} 322.endif 323 324# this is what we run below 325DIRDEP_MAKE?= ${.MAKE} 326 327# we suppress SUBDIR when visiting the leaves 328# we assume sys.mk will set MACHINE_ARCH 329# you can add extras to DIRDEP_USE_ENV 330# if there is no makefile in the target directory, we skip it. 331_DIRDEP_USE: .USE .MAKE 332 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 333 test -s ${.TARGET:R}/$$m || continue; \ 334 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 335 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 336 TARGET_SPEC=${.TARGET:E} \ 337 MACHINE=${.TARGET:E} \ 338 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 339 break; \ 340 done 341 342.ifdef ALL_MACHINES 343# this is how you limit it to only the machines we have been built for 344# previously. 345.if empty(ONLY_MACHINE_LIST) 346.if !empty(ALL_MACHINE_LIST) 347# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 348_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 349.else 350_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 351.endif 352_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 353.else 354_only_machines := ${ONLY_MACHINE_LIST} 355.endif 356 357.if empty(_only_machines) 358# we must be boot-strapping 359_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 360.endif 361 362.else # ! ALL_MACHINES 363# if ONLY_MACHINE_LIST is set, we are limited to that 364# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 365# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 366_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 367.endif 368 369.if !empty(NOT_MACHINE_LIST) 370_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 371.endif 372 373# make sure we have a starting place? 374DIRDEPS ?= ${RELDIR} 375.endif # target 376 377# if repeatedly building the same target, 378# we can avoid the overhead of re-computing the tree dependencies. 379MK_DIRDEPS_CACHE ?= no 380BUILD_DIRDEPS_CACHE ?= no 381BUILD_DIRDEPS ?= yes 382 383.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 384.if ${MK_DIRDEPS_CACHE} == "yes" 385# this is where we will cache all our work 386DIRDEPS_CACHE?= ${_OBJDIR}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 387 388# just ensure this exists 389build-dirdeps: 390 391M_oneperline = @x@\\${.newline} $$x@ 392 393.if ${BUILD_DIRDEPS_CACHE} == "no" 394.if !target(dirdeps-cached) 395# we do this via sub-make 396BUILD_DIRDEPS = no 397 398dirdeps: dirdeps-cached 399dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 400 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 401 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 402 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 403 404# these should generally do 405BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 406BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 407 408# we need the .meta file to ensure we update if 409# any of the Makefile.depend* changed. 410# We do not want to compare the command line though. 411${DIRDEPS_CACHE}: .META .NOMETA_CMP 412 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 413 echo 'BUILD_DIRDEPS=no'; echo; \ 414 echo '.include <dirdeps.mk>'; \ 415 } > ${.TARGET}.new 416 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 417 DIRDEPS="${DIRDEPS}" \ 418 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 419 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 420 .MAKE.DEPENDFILE=.none \ 421 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 422 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 423 mv ${.TARGET}.new ${.TARGET} 424 425.endif 426.elif !target(_count_dirdeps) 427# we want to capture the dirdeps count in the cache 428.END: _count_dirdeps 429_count_dirdeps: .NOMETA 430 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 431 432.endif 433.elif !make(dirdeps) && !target(_count_dirdeps) 434beforedirdeps: _count_dirdeps 435_count_dirdeps: .NOMETA 436 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 437 438.endif 439.endif 440 441.if ${BUILD_DIRDEPS} == "yes" 442.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 443_debug_reldir = 1 444.else 445_debug_reldir = 0 446.endif 447.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 448_debug_search = 1 449.else 450_debug_search = 0 451.endif 452 453# the rest is done repeatedly for every Makefile.depend we read. 454# if we are anything but the original dir we care only about the 455# machine type we were included for.. 456 457.if ${DEP_RELDIR} == "." 458_this_dir := ${SRCTOP} 459.else 460_this_dir := ${SRCTOP}/${DEP_RELDIR} 461.endif 462 463# on rare occasions, there can be a need for extra help 464_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 465.-include <${_dep_hack}> 466 467.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 468# this should be all 469_machines := ${DEP_MACHINE} 470.else 471# this is the machine list we actually use below 472_machines := ${_only_machines} 473 474.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 475# we need to build this guy's dependencies for host as well. 476_machines += host 477.endif 478 479_machines := ${_machines:O:u} 480.endif 481 482.if ${TARGET_SPEC_VARS:[#]} > 1 483# we need to tweak _machines 484_dm := ${DEP_MACHINE} 485# apply the same filtering that we do when qualifying DIRDEPS. 486# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 487_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 488DEP_MACHINE := ${_dm} 489.endif 490 491# reset each time through 492_build_dirs = 493 494.if ${DEP_RELDIR} == ${_DEP_RELDIR} 495# pickup other machines for this dir if necessary 496.if ${BUILD_AT_LEVEL0:Uyes} == "no" 497_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 498.else 499_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 500.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 501# pickup local dependencies now 502.if ${MAKE_VERSION} < 20160220 503.-include <.depend> 504.else 505.dinclude <.depend> 506.endif 507.endif 508.endif 509.endif 510 511.if ${_debug_reldir} 512.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 513.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 514.endif 515 516.if !empty(DIRDEPS) 517# these we reset each time through as they can depend on DEP_MACHINE 518DEP_DIRDEPS_FILTER = \ 519 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 520 ${DIRDEPS_FILTER.${DEP_MACHINE}:U} \ 521 ${DIRDEPS_FILTER:U} 522.if empty(DEP_DIRDEPS_FILTER) 523# something harmless 524DEP_DIRDEPS_FILTER = U 525.endif 526 527# this is what we start with 528__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 529 530# some entries may be qualified with .<machine> 531# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 532# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 533__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 534__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 535 536.if ${DEP_RELDIR} == ${_DEP_RELDIR} 537# if it was called out - we likely need it. 538__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 539__qual_depdirs += ${__hostdpadd} 540.endif 541 542.if ${_debug_reldir} 543.info depdirs=${__depdirs} 544.info qualified=${__qual_depdirs} 545.info unqualified=${__unqual_depdirs} 546.endif 547 548# _build_dirs is what we will feed to _DIRDEP_USE 549_build_dirs += \ 550 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 551 ${__qual_depdirs:N*.host} \ 552 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 553 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 554 555# qualify everything now 556_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 557 558_build_all_dirs += ${_build_dirs} 559_build_all_dirs := ${_build_all_dirs:O:u} 560 561.endif # empty DIRDEPS 562 563# Normally if doing make -V something, 564# we do not want to waste time chasing DIRDEPS 565# but if we want to count the number of Makefile.depend* read, we do. 566.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 567.if !empty(_build_all_dirs) 568.if ${BUILD_DIRDEPS_CACHE} == "yes" 569x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 570 echo 'dirdeps: ${_build_all_dirs:${M_oneperline}}'; echo; } >&3; echo 571x!= { ${_build_all_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 572.else 573# this makes it all happen 574dirdeps: ${_build_all_dirs} 575.endif 576${_build_all_dirs}: _DIRDEP_USE 577 578.if ${_debug_reldir} 579.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 580.endif 581 582# this builds the dependency graph 583.for m in ${_machines} 584# it would be nice to do :N${.TARGET} 585.if !empty(__qual_depdirs) 586.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 587.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 588.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 589.endif 590.if ${BUILD_DIRDEPS_CACHE} == "yes" 591x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 592.else 593${_this_dir}.$m: ${_build_dirs:M*.$q} 594.endif 595.endfor 596.endif 597.if ${_debug_reldir} 598.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 599.endif 600.if ${BUILD_DIRDEPS_CACHE} == "yes" 601x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 602.else 603${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 604.endif 605.endfor 606 607.endif 608 609# Now find more dependencies - and recurse. 610.for d in ${_build_all_dirs} 611.if !target(_dirdeps_checked.$d) 612# once only 613_dirdeps_checked.$d: 614.if ${_debug_search} 615.info checking $d 616.endif 617# Note: _build_all_dirs is fully qualifed so d:R is always the directory 618.if exists(${d:R}) 619# Warning: there is an assumption here that MACHINE is always 620# the first entry in TARGET_SPEC_VARS. 621# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 622_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 623.if !empty(_m) 624# M_dep_qual_fixes isn't geared to Makefile.depend 625_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 626.if ${_debug_search} 627.info Looking for ${_qm} 628.endif 629# we pass _DEP_TARGET_SPEC to tell the next step what we want 630_DEP_TARGET_SPEC := ${d:E} 631# some makefiles may still look at this 632_DEP_MACHINE := ${d:E:C/,.*//} 633# set this "just in case" 634# we can skip :tA since we computed the path above 635DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 636# and reset this 637DIRDEPS = 638.if ${_debug_reldir} && ${_qm} != ${_m} 639.info loading ${_m} for ${d:E} 640.endif 641.include <${_m}> 642.endif 643.endif 644.endif 645.endfor 646 647.endif # -V 648.endif # BUILD_DIRDEPS 649 650.elif ${.MAKE.LEVEL} > 42 651.error You should have stopped recursing by now. 652.else 653# we are building something 654DEP_RELDIR := ${RELDIR} 655_DEP_RELDIR := ${RELDIR} 656# pickup local dependencies 657.if ${MAKE_VERSION} < 20160220 658.-include <.depend> 659.else 660.dinclude <.depend> 661.endif 662.endif 663 664# bootstrapping new dependencies made easy? 665.if !target(bootstrap) && (make(bootstrap) || \ 666 make(bootstrap-this) || \ 667 make(bootstrap-recurse) || \ 668 make(bootstrap-empty)) 669 670.if exists(${.CURDIR}/${.MAKE.DEPENDFILE:T}) 671# stop here 672${.TARGETS:Mboot*}: 673.elif !make(bootstrap-empty) 674# find a Makefile.depend to use as _src 675_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 676.if empty(_src) 677.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 678.endif 679 680_src?= ${.MAKE.DEPENDFILE:T} 681 682# just create Makefile.depend* for this dir 683bootstrap-this: .NOTMAIN 684 @echo Bootstrapping ${RELDIR}/${.MAKE.DEPENDFILE:T} from ${_src:T} 685 (cd ${.CURDIR} && sed 's,${_src:E},${MACHINE},g' ${_src} > ${.MAKE.DEPENDFILE:T}) 686 687# create Makefile.depend* for this dir and its dependencies 688bootstrap: bootstrap-recurse 689bootstrap-recurse: bootstrap-this 690 691_mf := ${.PARSEFILE} 692bootstrap-recurse: .NOTMAIN .MAKE 693 @cd ${SRCTOP} && \ 694 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 695 test -d $$d || d=$${d%.*}; \ 696 test -d $$d || continue; \ 697 echo "Checking $$d for bootstrap ..."; \ 698 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 699 done 700 701.endif 702 703# create an empty Makefile.depend* to get the ball rolling. 704bootstrap-empty: .NOTMAIN .NOMETA 705 @echo Creating empty ${RELDIR}/${.MAKE.DEPENDFILE:T}; \ 706 echo You need to build ${RELDIR} to correctly populate it. 707 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${.CURDIR}/${.MAKE.DEPENDFILE:T} 708 709.endif 710