1# $FreeBSD$ 2# $Id: dirdeps.mk,v 1.86 2017/03/01 20:26:51 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# 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. 64# 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). 68# 69# BUILD_AT_LEVEL0 70# Indicates whether .MAKE.LEVEL 0 builds anything: 71# if "no" sub-makes are used to build everything, 72# if "yes" sub-makes are only used to build for other machines. 73# It is best to use "no", but this can require fixing some 74# makefiles to not do anything at .MAKE.LEVEL 0. 75# 76# TARGET_SPEC_VARS 77# The default value is just MACHINE, and for most environments 78# this is sufficient. The _DIRDEP_USE target actually sets 79# both MACHINE and TARGET_SPEC to the suffix of the current 80# target so that in the general case TARGET_SPEC can be ignored. 81# 82# If more than MACHINE is needed then sys.mk needs to decompose 83# TARGET_SPEC and set the relevant variables accordingly. 84# It is important that MACHINE be included in and actually be 85# the first member of TARGET_SPEC_VARS. This allows other 86# variables to be considered optional, and some of the treatment 87# below relies on MACHINE being the first entry. 88# Note: TARGET_SPEC cannot contain any '.'s so the target 89# triple used by compiler folk won't work (directly anyway). 90# 91# For example: 92# 93# # Always list MACHINE first, 94# # other variables might be optional. 95# TARGET_SPEC_VARS = MACHINE TARGET_OS 96# .if ${TARGET_SPEC:Uno:M*,*} != "" 97# _tspec := ${TARGET_SPEC:S/,/ /g} 98# MACHINE := ${_tspec:[1]} 99# TARGET_OS := ${_tspec:[2]} 100# # etc. 101# # We need to stop that TARGET_SPEC affecting any submakes 102# # and deal with MACHINE=${TARGET_SPEC} in the environment. 103# TARGET_SPEC = 104# # export but do not track 105# .export-env TARGET_SPEC 106# .export ${TARGET_SPEC_VARS} 107# .for v in ${TARGET_SPEC_VARS:O:u} 108# .if empty($v) 109# .undef $v 110# .endif 111# .endfor 112# .endif 113# # make sure we know what TARGET_SPEC is 114# # as we may need it to find Makefile.depend* 115# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 116# 117# The following variables can influence the initial DIRDEPS 118# computation with regard to the TARGET_SPECs that will be 119# built. 120# Most should also be considered by init.mk 121# 122# ONLY_TARGET_SPEC_LIST 123# Defines a list of TARGET_SPECs for which the current 124# directory can be built. 125# If ALL_MACHINES is defined, we build for all the 126# TARGET_SPECs listed. 127# 128# ONLY_MACHINE_LIST 129# As for ONLY_TARGET_SPEC_LIST but only specifies 130# MACHINEs. 131# 132# NOT_TARGET_SPEC_LIST 133# A list of TARGET_SPECs for which the current 134# directory should not be built. 135# 136# NOT_MACHINE_LIST 137# A list of MACHINEs the current directory should not be 138# built for. 139# 140 141# touch this at your peril 142_DIRDEP_USE_LEVEL?= 0 143.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 144# only the first instance is interested in all this 145 146.if !target(_DIRDEP_USE) 147 148# do some setup we only need once 149_CURDIR ?= ${.CURDIR} 150_OBJDIR ?= ${.OBJDIR} 151 152now_utc = ${%s:L:gmtime} 153.if !defined(start_utc) 154start_utc := ${now_utc} 155.endif 156 157.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 158# This little trick let's us do 159# 160# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 161# 162all: 163${.TARGETS:Nall}: all 164DIRDEPS := ${.TARGETS:M*[/.]*} 165# so that -DNO_DIRDEPS works 166DEP_RELDIR := ${DIRDEPS:[1]:R} 167# this will become DEP_MACHINE below 168TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 169.if ${TARGET_MACHINE:N*/*} == "" 170TARGET_MACHINE := ${MACHINE} 171.endif 172# disable DIRDEPS_CACHE as it does not like this trick 173MK_DIRDEPS_CACHE = no 174.endif 175 176# make sure we get the behavior we expect 177.MAKE.SAVE_DOLLARS = no 178 179# make sure these are empty to start with 180_DEP_TARGET_SPEC = 181 182# If TARGET_SPEC_VARS is other than just MACHINE 183# it should be set by sys.mk or similar by now. 184# TARGET_SPEC must not contain any '.'s. 185TARGET_SPEC_VARS ?= MACHINE 186# this is what we started with 187TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 188# this is what we mostly use below 189DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 190# make sure we have defaults 191.for v in ${TARGET_SPEC_VARS} 192DEP_$v ?= ${$v} 193.endfor 194 195.if ${TARGET_SPEC_VARS:[#]} > 1 196# Ok, this gets more complex (putting it mildly). 197# In order to stay sane, we need to ensure that all the build_dirs 198# we compute below are fully qualified wrt DEP_TARGET_SPEC. 199# The makefiles may only partially specify (eg. MACHINE only), 200# so we need to construct a set of modifiers to fill in the gaps. 201.if ${MAKE_VERSION} >= 20170130 202_tspec_x := ${TARGET_SPEC_VARS:range} 203.elif ${TARGET_SPEC_VARS:[#]} > 10 204# seriously? better have jot(1) or equivalent to produce suitable sequence 205_tspec_x := ${${JOT:Ujot} ${TARGET_SPEC_VARS:[#]}:L:sh} 206.else 207# we can provide the sequence ourselves 208_tspec_x := ${1 2 3 4 5 6 7 8 9 10:L:[1..${TARGET_SPEC_VARS:[#]}]} 209.endif 210# this handles unqualified entries 211M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 212# there needs to be at least one item missing for these to make sense 213.for i in ${_tspec_x:[2..-1]} 214_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 215_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 216M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 217.endfor 218.else 219# A harmless? default. 220M_dep_qual_fixes = U 221.endif 222 223.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 224# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 225# you really want this set by sys.mk or similar 226.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 227.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 228.if ${TARGET_SPEC} != ${MACHINE} 229.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 230.endif 231.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 232.endif 233.endif 234 235_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 236_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 237 238# for machine specific dependfiles we require ${MACHINE} to be at the end 239# also for the sake of sanity we require a common prefix 240.if !defined(.MAKE.DEPENDFILE_PREFIX) 241# knowing .MAKE.DEPENDFILE_PREFIX helps 242.if !empty(_machine_dependfiles) 243.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 244.else 245.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 246.endif 247.endif 248 249 250# this is how we identify non-machine specific dependfiles 251N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 252 253.endif # !target(_DIRDEP_USE) 254 255# First off, we want to know what ${MACHINE} to build for. 256# This can be complicated if we are using a mixture of ${MACHINE} specific 257# and non-specific Makefile.depend* 258 259# if we were included recursively _DEP_TARGET_SPEC should be valid. 260.if empty(_DEP_TARGET_SPEC) 261# we may or may not have included a dependfile yet 262.if defined(.INCLUDEDFROMFILE) 263_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 264.else 265_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 266.endif 267.if ${_debug_reldir:U0} 268.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 269.endif 270 271.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 272# this is all we have to work with 273DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 274_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 275.else 276_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 277.endif 278.if !empty(_last_dependfile) 279# record that we've read dependfile for this 280_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 281.endif 282.endif 283 284# by now _DEP_TARGET_SPEC should be set, parse it. 285.if ${TARGET_SPEC_VARS:[#]} > 1 286# we need to parse DEP_MACHINE may or may not contain more info 287_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 288.for i in ${_tspec_x} 289DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 290.endfor 291.for v in ${TARGET_SPEC_VARS:O:u} 292.if empty(DEP_$v) 293.undef DEP_$v 294.endif 295.endfor 296.else 297DEP_MACHINE := ${_DEP_TARGET_SPEC} 298.endif 299 300# reset each time through 301_build_all_dirs = 302 303# the first time we are included the _DIRDEP_USE target will not be defined 304# we can use this as a clue to do initialization and other one time things. 305.if !target(_DIRDEP_USE) 306# make sure this target exists 307dirdeps: beforedirdeps .WAIT 308beforedirdeps: 309 310# We normally expect to be included by Makefile.depend.* 311# which sets the DEP_* macros below. 312DEP_RELDIR ?= ${RELDIR} 313 314# this can cause lots of output! 315# set to a set of glob expressions that might match RELDIR 316DEBUG_DIRDEPS ?= no 317 318# remember the initial value of DEP_RELDIR - we test for it below. 319_DEP_RELDIR := ${DEP_RELDIR} 320 321.endif 322 323# DIRDEPS_CACHE can be very handy for debugging. 324# Also if repeatedly building the same target, 325# we can avoid the overhead of re-computing the tree dependencies. 326MK_DIRDEPS_CACHE ?= no 327BUILD_DIRDEPS_CACHE ?= no 328BUILD_DIRDEPS ?= yes 329 330.if ${MK_DIRDEPS_CACHE} == "yes" 331# this is where we will cache all our work 332DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 333.endif 334 335# pickup customizations 336# as below you can use !target(_DIRDEP_USE) to protect things 337# which should only be done once. 338.-include <local.dirdeps.mk> 339 340.if !target(_DIRDEP_USE) 341# things we skip for host tools 342SKIP_HOSTDIR ?= 343 344NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 345 346# things we always skip 347# SKIP_DIRDEPS allows for adding entries on command line. 348SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 349SKIP_DIR.host += ${SKIP_HOSTDIR} 350 351DEP_SKIP_DIR = ${SKIP_DIR} \ 352 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 353 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 354 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 355 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 356 357 358NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 359 360.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 361NO_DIRDEPS = 362.elif defined(WITHOUT_DIRDEPS_BELOW) 363NO_DIRDEPS_BELOW = 364.endif 365 366.if defined(NO_DIRDEPS) 367# confine ourselves to the original dir and below. 368DIRDEPS_FILTER += M${_DEP_RELDIR}* 369.elif defined(NO_DIRDEPS_BELOW) 370DIRDEPS_FILTER += M${_DEP_RELDIR} 371.endif 372 373# this is what we run below 374DIRDEP_MAKE?= ${.MAKE} 375 376# we suppress SUBDIR when visiting the leaves 377# we assume sys.mk will set MACHINE_ARCH 378# you can add extras to DIRDEP_USE_ENV 379# if there is no makefile in the target directory, we skip it. 380_DIRDEP_USE: .USE .MAKE 381 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 382 test -s ${.TARGET:R}/$$m || continue; \ 383 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 384 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 385 TARGET_SPEC=${.TARGET:E} \ 386 MACHINE=${.TARGET:E} \ 387 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 388 break; \ 389 done 390 391.ifdef ALL_MACHINES 392# this is how you limit it to only the machines we have been built for 393# previously. 394.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 395.if !empty(ALL_MACHINE_LIST) 396# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 397_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 398.else 399_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 400.endif 401_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 402.else 403_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 404.endif 405 406.if empty(_only_machines) 407# we must be boot-strapping 408_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 409.endif 410 411.else # ! ALL_MACHINES 412# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 413# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 414# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 415# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 416_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 417.if empty(_only_machines) 418_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 419.endif 420.endif 421 422.if !empty(NOT_MACHINE_LIST) 423_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 424.endif 425.if !empty(NOT_TARGET_SPEC_LIST) 426# we must first qualify 427_dm := ${DEP_MACHINE} 428_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 429DEP_MACHINE := ${_dm} 430_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 431.endif 432# clean up 433_only_machines := ${_only_machines:O:u} 434 435# make sure we have a starting place? 436DIRDEPS ?= ${RELDIR} 437.endif # target 438 439.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 440.if ${MK_DIRDEPS_CACHE} == "yes" 441 442# just ensure this exists 443build-dirdeps: 444 445M_oneperline = @x@\\${.newline} $$x@ 446 447.if ${BUILD_DIRDEPS_CACHE} == "no" 448.if !target(dirdeps-cached) 449# we do this via sub-make 450BUILD_DIRDEPS = no 451 452# ignore anything but these 453.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 454 455dirdeps: dirdeps-cached 456dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 457 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 458 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 459 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 460 461# these should generally do 462BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 463BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 464 465# we need the .meta file to ensure we update if 466# any of the Makefile.depend* changed. 467# We do not want to compare the command line though. 468${DIRDEPS_CACHE}: .META .NOMETA_CMP 469 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 470 echo 'BUILD_DIRDEPS=no'; echo; \ 471 echo '.include <dirdeps.mk>'; \ 472 } > ${.TARGET}.new 473 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 474 DIRDEPS="${DIRDEPS}" \ 475 TARGET_SPEC=${TARGET_SPEC} \ 476 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 477 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 478 .MAKE.DEPENDFILE=.none \ 479 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 480 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 481 mv ${.TARGET}.new ${.TARGET} 482 483.endif 484.elif !target(_count_dirdeps) 485# we want to capture the dirdeps count in the cache 486.END: _count_dirdeps 487_count_dirdeps: .NOMETA 488 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 489 490.endif 491.elif !make(dirdeps) && !target(_count_dirdeps) 492beforedirdeps: _count_dirdeps 493_count_dirdeps: .NOMETA 494 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 495 496.endif 497.endif 498 499.if ${BUILD_DIRDEPS} == "yes" 500.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 501_debug_reldir = 1 502.else 503_debug_reldir = 0 504.endif 505.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 506_debug_search = 1 507.else 508_debug_search = 0 509.endif 510 511# the rest is done repeatedly for every Makefile.depend we read. 512# if we are anything but the original dir we care only about the 513# machine type we were included for.. 514 515.if ${DEP_RELDIR} == "." 516_this_dir := ${SRCTOP} 517.else 518_this_dir := ${SRCTOP}/${DEP_RELDIR} 519.endif 520 521# on rare occasions, there can be a need for extra help 522_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 523.-include <${_dep_hack}> 524 525.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 526# this should be all 527_machines := ${DEP_MACHINE} 528.else 529# this is the machine list we actually use below 530_machines := ${_only_machines} 531 532.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 533# we need to build this guy's dependencies for host as well. 534_machines += host 535.endif 536 537_machines := ${_machines:O:u} 538.endif 539 540.if ${TARGET_SPEC_VARS:[#]} > 1 541# we need to tweak _machines 542_dm := ${DEP_MACHINE} 543# apply the same filtering that we do when qualifying DIRDEPS. 544# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 545# Again we expect that any already qualified machines are fully qualified. 546_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 547DEP_MACHINE := ${_dm} 548_machines := ${_machines:O:u} 549.endif 550 551# reset each time through 552_build_dirs = 553 554.if ${DEP_RELDIR} == ${_DEP_RELDIR} 555# pickup other machines for this dir if necessary 556.if ${BUILD_AT_LEVEL0:Uyes} == "no" 557_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 558.else 559_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 560.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 561# pickup local dependencies now 562.if ${MAKE_VERSION} < 20160220 563.-include <.depend> 564.else 565.dinclude <.depend> 566.endif 567.endif 568.endif 569.endif 570 571.if ${_debug_reldir} 572.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 573.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 574.endif 575 576.if !empty(DIRDEPS) 577# these we reset each time through as they can depend on DEP_MACHINE 578DEP_DIRDEPS_FILTER = \ 579 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 580 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 581 ${DIRDEPS_FILTER:U} 582.if empty(DEP_DIRDEPS_FILTER) 583# something harmless 584DEP_DIRDEPS_FILTER = U 585.endif 586 587# this is what we start with 588__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 589 590# some entries may be qualified with .<machine> 591# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 592# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 593__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 594__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 595 596.if ${DEP_RELDIR} == ${_DEP_RELDIR} 597# if it was called out - we likely need it. 598__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 599__qual_depdirs += ${__hostdpadd} 600.endif 601 602.if ${_debug_reldir} 603.info depdirs=${__depdirs} 604.info qualified=${__qual_depdirs} 605.info unqualified=${__unqual_depdirs} 606.endif 607 608# _build_dirs is what we will feed to _DIRDEP_USE 609_build_dirs += \ 610 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 611 ${__qual_depdirs:N*.host} \ 612 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 613 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 614 615# qualify everything now 616_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 617 618.endif # empty DIRDEPS 619 620_build_all_dirs += ${_build_dirs} 621_build_all_dirs := ${_build_all_dirs:O:u} 622 623# Normally if doing make -V something, 624# we do not want to waste time chasing DIRDEPS 625# but if we want to count the number of Makefile.depend* read, we do. 626.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 627.if !empty(_build_all_dirs) 628.if ${BUILD_DIRDEPS_CACHE} == "yes" 629x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 630 echo 'dirdeps: ${_build_all_dirs:${M_oneperline}}'; echo; } >&3; echo 631x!= { ${_build_all_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 632.else 633# this makes it all happen 634dirdeps: ${_build_all_dirs} 635.endif 636${_build_all_dirs}: _DIRDEP_USE 637 638.if ${_debug_reldir} 639.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 640.endif 641 642# this builds the dependency graph 643.for m in ${_machines} 644# it would be nice to do :N${.TARGET} 645.if !empty(__qual_depdirs) 646.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 647.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 648.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 649.endif 650.if ${BUILD_DIRDEPS_CACHE} == "yes" 651x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 652.else 653${_this_dir}.$m: ${_build_dirs:M*.$q} 654.endif 655.endfor 656.endif 657.if ${_debug_reldir} 658.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 659.endif 660.if ${BUILD_DIRDEPS_CACHE} == "yes" 661x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 662.else 663${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 664.endif 665.endfor 666 667.endif 668 669# Now find more dependencies - and recurse. 670.for d in ${_build_all_dirs} 671.if !target(_dirdeps_checked.$d) 672# once only 673_dirdeps_checked.$d: 674.if ${_debug_search} 675.info checking $d 676.endif 677# Note: _build_all_dirs is fully qualifed so d:R is always the directory 678.if exists(${d:R}) 679# we pass _DEP_TARGET_SPEC to tell the next step what we want 680_DEP_TARGET_SPEC := ${d:E} 681# some makefiles may still look at this 682_DEP_MACHINE := ${d:E:C/,.*//} 683# set these too in case Makefile.depend* uses them 684.if ${TARGET_SPEC_VARS:[#]} > 1 685_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 686.for i in ${_tspec_x} 687DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 688.endfor 689.else 690DEP_MACHINE := ${_DEP_MACHINE} 691.endif 692# Warning: there is an assumption here that MACHINE is always 693# the first entry in TARGET_SPEC_VARS. 694# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 695_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 696.if !empty(_m) 697# M_dep_qual_fixes isn't geared to Makefile.depend 698_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 699.if ${_debug_search} 700.info Looking for ${_qm} 701.endif 702# set this "just in case" 703# we can skip :tA since we computed the path above 704DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 705# and reset this 706DIRDEPS = 707.if ${_debug_reldir} && ${_qm} != ${_m} 708.info loading ${_m} for ${d:E} 709.endif 710.include <${_m}> 711.endif 712.endif 713.endif 714.endfor 715 716.endif # -V 717.endif # BUILD_DIRDEPS 718 719.elif ${.MAKE.LEVEL} > 42 720.error You should have stopped recursing by now. 721.else 722# we are building something 723DEP_RELDIR := ${RELDIR} 724_DEP_RELDIR := ${RELDIR} 725# pickup local dependencies 726.if ${MAKE_VERSION} < 20160220 727.-include <.depend> 728.else 729.dinclude <.depend> 730.endif 731.endif 732 733# bootstrapping new dependencies made easy? 734.if !target(bootstrap) && (make(bootstrap) || \ 735 make(bootstrap-this) || \ 736 make(bootstrap-recurse) || \ 737 make(bootstrap-empty)) 738 739# if we are bootstrapping create the default 740_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 741 742.if exists(${_want}) 743# stop here 744${.TARGETS:Mboot*}: 745.elif !make(bootstrap-empty) 746# find a Makefile.depend to use as _src 747_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 748.if empty(_src) 749.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 750.endif 751 752_src?= ${.MAKE.DEPENDFILE} 753 754.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 755 756# just create Makefile.depend* for this dir 757bootstrap-this: .NOTMAIN 758 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 759 echo You need to build ${RELDIR} to correctly populate it. 760.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 761 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want}) 762.else 763 cp ${.CURDIR}/${_src:T} ${_want} 764.endif 765 766# create Makefile.depend* for this dir and its dependencies 767bootstrap: bootstrap-recurse 768bootstrap-recurse: bootstrap-this 769 770_mf := ${.PARSEFILE} 771bootstrap-recurse: .NOTMAIN .MAKE 772 @cd ${SRCTOP} && \ 773 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 774 test -d $$d || d=$${d%.*}; \ 775 test -d $$d || continue; \ 776 echo "Checking $$d for bootstrap ..."; \ 777 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 778 done 779 780.endif 781 782# create an empty Makefile.depend* to get the ball rolling. 783bootstrap-empty: .NOTMAIN .NOMETA 784 @echo Creating empty ${RELDIR}/${_want:T}; \ 785 echo You need to build ${RELDIR} to correctly populate it. 786 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 787 788.endif 789