1# $Id: dirdeps.mk,v 1.106 2020/07/11 16:25:17 sjg Exp $ 2 3# Copyright (c) 2010-2020, Simon J. Gerraty 4# Copyright (c) 2010-2018, 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.if !target(bootstrap) && (make(bootstrap) || \ 142 make(bootstrap-this) || \ 143 make(bootstrap-recurse) || \ 144 make(bootstrap-empty)) 145# disable most of below 146.MAKE.LEVEL = 1 147.endif 148 149# touch this at your peril 150_DIRDEP_USE_LEVEL?= 0 151.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 152# only the first instance is interested in all this 153 154.if !target(_DIRDEP_USE) 155 156# do some setup we only need once 157_CURDIR ?= ${.CURDIR} 158_OBJDIR ?= ${.OBJDIR} 159 160now_utc = ${%s:L:gmtime} 161.if !defined(start_utc) 162start_utc := ${now_utc} 163.endif 164 165.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 166# This little trick let's us do 167# 168# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 169# 170all: 171${.TARGETS:Nall}: all 172DIRDEPS := ${.TARGETS:M*[/.]*} 173# so that -DNO_DIRDEPS works 174DEP_RELDIR := ${DIRDEPS:[1]:R} 175# this will become DEP_MACHINE below 176TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 177.if ${TARGET_MACHINE:N*/*} == "" 178TARGET_MACHINE := ${MACHINE} 179.endif 180# disable DIRDEPS_CACHE as it does not like this trick 181MK_DIRDEPS_CACHE = no 182.endif 183 184# make sure we get the behavior we expect 185.MAKE.SAVE_DOLLARS = no 186 187# make sure these are empty to start with 188_DEP_TARGET_SPEC = 189 190# If TARGET_SPEC_VARS is other than just MACHINE 191# it should be set by sys.mk or similar by now. 192# TARGET_SPEC must not contain any '.'s. 193TARGET_SPEC_VARS ?= MACHINE 194# this is what we started with 195TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 196# this is what we mostly use below 197DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 198# make sure we have defaults 199.for v in ${TARGET_SPEC_VARS} 200DEP_$v ?= ${$v} 201.endfor 202 203.if ${TARGET_SPEC_VARS:[#]} > 1 204# Ok, this gets more complex (putting it mildly). 205# In order to stay sane, we need to ensure that all the build_dirs 206# we compute below are fully qualified wrt DEP_TARGET_SPEC. 207# The makefiles may only partially specify (eg. MACHINE only), 208# so we need to construct a set of modifiers to fill in the gaps. 209.if ${MAKE_VERSION} >= 20170130 210_tspec_x := ${TARGET_SPEC_VARS:range} 211.elif ${TARGET_SPEC_VARS:[#]} > 10 212# seriously? better have jot(1) or equivalent to produce suitable sequence 213_tspec_x := ${${JOT:Ujot} ${TARGET_SPEC_VARS:[#]}:L:sh} 214.else 215# we can provide the sequence ourselves 216_tspec_x := ${1 2 3 4 5 6 7 8 9 10:L:[1..${TARGET_SPEC_VARS:[#]}]} 217.endif 218# this handles unqualified entries 219M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 220# there needs to be at least one item missing for these to make sense 221.for i in ${_tspec_x:[2..-1]} 222_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 223_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 224M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 225.endfor 226.else 227# A harmless? default. 228M_dep_qual_fixes = U 229.endif 230 231.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 232# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 233# you really want this set by sys.mk or similar 234.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 235.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 236.if ${TARGET_SPEC} != ${MACHINE} 237.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 238.endif 239.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 240.endif 241.endif 242 243_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 244_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 245 246# for machine specific dependfiles we require ${MACHINE} to be at the end 247# also for the sake of sanity we require a common prefix 248.if !defined(.MAKE.DEPENDFILE_PREFIX) 249# knowing .MAKE.DEPENDFILE_PREFIX helps 250.if !empty(_machine_dependfiles) 251.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 252.else 253.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 254.endif 255.endif 256 257 258# this is how we identify non-machine specific dependfiles 259N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 260 261.endif # !target(_DIRDEP_USE) 262 263# First off, we want to know what ${MACHINE} to build for. 264# This can be complicated if we are using a mixture of ${MACHINE} specific 265# and non-specific Makefile.depend* 266 267# if we were included recursively _DEP_TARGET_SPEC should be valid. 268.if empty(_DEP_TARGET_SPEC) 269# we may or may not have included a dependfile yet 270.if defined(.INCLUDEDFROMFILE) 271_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 272.else 273_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 274.endif 275.if ${_debug_reldir:U0} 276.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 277.endif 278 279.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 280# this is all we have to work with 281DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 282_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 283.else 284_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 285.endif 286.if !empty(_last_dependfile) 287# record that we've read dependfile for this 288_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 289.endif 290.endif 291 292# by now _DEP_TARGET_SPEC should be set, parse it. 293.if ${TARGET_SPEC_VARS:[#]} > 1 294# we need to parse DEP_MACHINE may or may not contain more info 295_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 296.for i in ${_tspec_x} 297DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 298.endfor 299.for v in ${TARGET_SPEC_VARS:O:u} 300.if empty(DEP_$v) 301.undef DEP_$v 302.endif 303.endfor 304.else 305DEP_MACHINE := ${_DEP_TARGET_SPEC} 306.endif 307 308# reset each time through 309_build_all_dirs = 310 311# the first time we are included the _DIRDEP_USE target will not be defined 312# we can use this as a clue to do initialization and other one time things. 313.if !target(_DIRDEP_USE) 314# make sure this target exists 315dirdeps: beforedirdeps .WAIT 316beforedirdeps: 317 318# We normally expect to be included by Makefile.depend.* 319# which sets the DEP_* macros below. 320DEP_RELDIR ?= ${RELDIR} 321 322# this can cause lots of output! 323# set to a set of glob expressions that might match RELDIR 324DEBUG_DIRDEPS ?= no 325 326# remember the initial value of DEP_RELDIR - we test for it below. 327_DEP_RELDIR := ${DEP_RELDIR} 328 329.endif 330 331# DIRDEPS_CACHE can be very handy for debugging. 332# Also if repeatedly building the same target, 333# we can avoid the overhead of re-computing the tree dependencies. 334MK_DIRDEPS_CACHE ?= no 335BUILD_DIRDEPS_CACHE ?= no 336BUILD_DIRDEPS ?= yes 337 338.if ${MK_DIRDEPS_CACHE} == "yes" 339# this is where we will cache all our work 340DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 341.endif 342 343.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 344_debug_reldir = 1 345.else 346_debug_reldir = 0 347.endif 348.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 349_debug_search = 1 350.else 351_debug_search = 0 352.endif 353 354# pickup customizations 355# as below you can use !target(_DIRDEP_USE) to protect things 356# which should only be done once. 357.-include <local.dirdeps.mk> 358 359.if !target(_DIRDEP_USE) 360# things we skip for host tools 361SKIP_HOSTDIR ?= 362 363NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 364 365# things we always skip 366# SKIP_DIRDEPS allows for adding entries on command line. 367SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 368SKIP_DIR.host += ${SKIP_HOSTDIR} 369 370DEP_SKIP_DIR = ${SKIP_DIR} \ 371 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 372 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 373 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 374 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 375 376 377NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 378 379.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 380NO_DIRDEPS = 381.elif defined(WITHOUT_DIRDEPS_BELOW) 382NO_DIRDEPS_BELOW = 383.endif 384 385.if defined(NO_DIRDEPS) 386# confine ourselves to the original dir and below. 387DIRDEPS_FILTER += M${_DEP_RELDIR}* 388.elif defined(NO_DIRDEPS_BELOW) 389DIRDEPS_FILTER += M${_DEP_RELDIR} 390.endif 391 392# this is what we run below 393DIRDEP_MAKE ?= ${.MAKE} 394DIRDEP_DIR ?= ${.TARGET:R} 395 396# we suppress SUBDIR when visiting the leaves 397# we assume sys.mk will set MACHINE_ARCH 398# you can add extras to DIRDEP_USE_ENV 399# if there is no makefile in the target directory, we skip it. 400_DIRDEP_USE: .USE .MAKE 401 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 402 test -s ${.TARGET:R}/$$m || continue; \ 403 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 404 ${DIRDEP_USE_PRELUDE} \ 405 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 406 TARGET_SPEC=${.TARGET:E} \ 407 MACHINE=${.TARGET:E} \ 408 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \ 409 break; \ 410 done 411 412.ifdef ALL_MACHINES 413# this is how you limit it to only the machines we have been built for 414# previously. 415.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 416.if !empty(ALL_MACHINE_LIST) 417# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 418_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 419.else 420_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 421.endif 422_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 423.else 424_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 425.endif 426 427.if empty(_only_machines) 428# we must be boot-strapping 429_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 430.endif 431 432.else # ! ALL_MACHINES 433# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 434# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 435# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 436# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 437_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 438.if empty(_only_machines) 439_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 440.endif 441.endif 442 443.if !empty(NOT_MACHINE_LIST) 444_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 445.endif 446.if !empty(NOT_TARGET_SPEC_LIST) 447# we must first qualify 448_dm := ${DEP_MACHINE} 449_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 450DEP_MACHINE := ${_dm} 451_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 452.endif 453# clean up 454_only_machines := ${_only_machines:O:u} 455 456# make sure we have a starting place? 457DIRDEPS ?= ${RELDIR} 458.endif # target 459 460.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 461.if ${MK_DIRDEPS_CACHE} == "yes" 462 463# just ensure this exists 464build-dirdeps: 465 466M_oneperline = @x@\\${.newline} $$x@ 467 468.if ${BUILD_DIRDEPS_CACHE} == "no" 469.if !target(dirdeps-cached) 470# we do this via sub-make 471BUILD_DIRDEPS = no 472 473# ignore anything but these 474.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 475 476dirdeps: dirdeps-cached 477dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 478 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 479 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 480 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 481 482# these should generally do 483BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 484BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 485 486# we need the .meta file to ensure we update if 487# any of the Makefile.depend* changed. 488# We do not want to compare the command line though. 489${DIRDEPS_CACHE}: .META .NOMETA_CMP 490 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 491 echo 'BUILD_DIRDEPS=no'; echo; \ 492 echo '.include <dirdeps.mk>'; echo; \ 493 } > ${.TARGET}.new 494 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 495 DIRDEPS="${DIRDEPS}" \ 496 TARGET_SPEC=${TARGET_SPEC} \ 497 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 498 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 499 .MAKE.DEPENDFILE=.none \ 500 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 501 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \ 502 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 503 mv ${.TARGET}.new ${.TARGET} 504 505.endif 506.elif !target(_count_dirdeps) 507# we want to capture the dirdeps count in the cache 508.END: _count_dirdeps 509_count_dirdeps: .NOMETA 510 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}'; } >&3 511 512.endif 513.elif !make(dirdeps) && !target(_count_dirdeps) 514beforedirdeps: _count_dirdeps 515_count_dirdeps: .NOMETA 516 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 517 518.endif 519.endif 520 521.if ${BUILD_DIRDEPS} == "yes" 522 523# the rest is done repeatedly for every Makefile.depend we read. 524# if we are anything but the original dir we care only about the 525# machine type we were included for.. 526 527.if ${DEP_RELDIR} == "." 528_this_dir := ${SRCTOP} 529.else 530_this_dir := ${SRCTOP}/${DEP_RELDIR} 531.endif 532 533# on rare occasions, there can be a need for extra help 534_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 535.-include <${_dep_hack}> 536.-include <${_dep_hack:R}.options> 537 538.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 539# this should be all 540_machines := ${DEP_MACHINE} 541.else 542# this is the machine list we actually use below 543_machines := ${_only_machines} 544 545.if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == "" 546# we need to build this guy's dependencies for host as well. 547.if ${DEP_MACHINE:Nhost*} == "" 548_machines += ${DEP_MACHINE} 549.else 550_machines += host 551.endif 552.endif 553 554_machines := ${_machines:O:u} 555.endif 556 557.if ${TARGET_SPEC_VARS:[#]} > 1 558# we need to tweak _machines 559_dm := ${DEP_MACHINE} 560# apply the same filtering that we do when qualifying DIRDEPS. 561# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 562# Again we expect that any already qualified machines are fully qualified. 563_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 564DEP_MACHINE := ${_dm} 565_machines := ${_machines:O:u} 566.endif 567 568# reset each time through 569_build_dirs = 570 571.if ${DEP_RELDIR} == ${_DEP_RELDIR} 572# pickup other machines for this dir if necessary 573.if ${BUILD_AT_LEVEL0:Uyes} == "no" 574_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 575.else 576_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 577.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 578# pickup local dependencies now 579.if ${MAKE_VERSION} < 20160220 580.-include <.depend> 581.else 582.dinclude <.depend> 583.endif 584.endif 585.endif 586.endif 587 588.if ${_debug_reldir} 589.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 590.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 591.endif 592 593.if !empty(DIRDEPS) 594# these we reset each time through as they can depend on DEP_MACHINE 595DEP_DIRDEPS_FILTER = \ 596 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 597 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 598 ${DIRDEPS_FILTER:U} 599.if empty(DEP_DIRDEPS_FILTER) 600# something harmless 601DEP_DIRDEPS_FILTER = U 602.endif 603 604# this is what we start with 605__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 606 607# some entries may be qualified with .<machine> 608# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 609# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 610__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 611__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 612 613.if ${DEP_RELDIR} == ${_DEP_RELDIR} 614# if it was called out - we likely need it. 615__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \ 616 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@} 617__qual_depdirs += ${__hostdpadd} 618.endif 619 620.if ${_debug_reldir} 621.info depdirs=${__depdirs} 622.info qualified=${__qual_depdirs} 623.info unqualified=${__unqual_depdirs} 624.endif 625 626# _build_dirs is what we will feed to _DIRDEP_USE 627_build_dirs += \ 628 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 629 ${__qual_depdirs:N*.host} \ 630 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 631 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 632 633# qualify everything now 634_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 635 636.endif # empty DIRDEPS 637 638_build_all_dirs += ${_build_dirs} 639_build_all_dirs := ${_build_all_dirs:O:u} 640 641# Normally if doing make -V something, 642# we do not want to waste time chasing DIRDEPS 643# but if we want to count the number of Makefile.depend* read, we do. 644.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 645.if !empty(_build_all_dirs) 646.if ${BUILD_DIRDEPS_CACHE} == "yes" 647x!= echo; { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; } >&3 648# guard against _new_dirdeps being too big for a single command line 649_new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@} 650.if !empty(_new_dirdeps) 651.export _new_dirdeps 652x!= echo; { echo; echo "dirdeps: \\"; \ 653 for x in $$_new_dirdeps; do echo " $$x \\"; done; echo; \ 654 for x in $$_new_dirdeps; do echo "$$x: _DIRDEP_USE"; done; } >&3 655.endif 656.if !empty(DEP_EXPORT_VARS) 657# Discouraged, but there are always exceptions. 658# Handle it here rather than explain how. 659x!= echo; { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3 660.endif 661.else 662# this makes it all happen 663dirdeps: ${_build_all_dirs} 664.endif 665${_build_all_dirs}: _DIRDEP_USE 666 667.if ${_debug_reldir} 668.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 669.endif 670 671.if !empty(DEP_EXPORT_VARS) 672.export ${DEP_EXPORT_VARS} 673DEP_EXPORT_VARS= 674.endif 675 676# this builds the dependency graph 677.for m in ${_machines} 678.if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs) 679x!= echo; { echo; echo "${_this_dir}.$m: \\"; } >&3 680.endif 681# it would be nice to do :N${.TARGET} 682.if !empty(__qual_depdirs) 683.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 684.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 685.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 686.endif 687.if ${BUILD_DIRDEPS_CACHE} == "yes" 688_cache_deps := ${_build_dirs:M*.$q} 689.if !empty(_cache_deps) 690.export _cache_deps 691x!= echo; for x in $$_cache_deps; do echo " $$x \\"; done >&3 692.endif 693.else 694${_this_dir}.$m: ${_build_dirs:M*.$q} 695.endif 696.endfor 697.endif 698.if ${_debug_reldir} 699.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 700.endif 701.if ${BUILD_DIRDEPS_CACHE} == "yes" 702_cache_deps := ${_build_dirs:M*.$m:N${_this_dir}.$m} 703.if !empty(_cache_deps) 704.export _cache_deps 705x!= echo; for x in $$_cache_deps; do echo " $$x \\"; done >&3 706.endif 707.else 708${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 709.endif 710.endfor 711 712.endif 713 714# Now find more dependencies - and recurse. 715.for d in ${_build_all_dirs} 716.if !target(_dirdeps_checked.$d) 717# once only 718_dirdeps_checked.$d: 719.if ${_debug_search} 720.info checking $d 721.endif 722# Note: _build_all_dirs is fully qualifed so d:R is always the directory 723.if exists(${d:R}) 724# we pass _DEP_TARGET_SPEC to tell the next step what we want 725_DEP_TARGET_SPEC := ${d:E} 726# some makefiles may still look at this 727_DEP_MACHINE := ${d:E:C/,.*//} 728# set these too in case Makefile.depend* uses them 729.if ${TARGET_SPEC_VARS:[#]} > 1 730_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 731.for i in ${_tspec_x} 732DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 733.endfor 734.else 735DEP_MACHINE := ${_DEP_MACHINE} 736.endif 737# Warning: there is an assumption here that MACHINE is always 738# the first entry in TARGET_SPEC_VARS. 739# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 740_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 741.if !empty(_m) 742# M_dep_qual_fixes isn't geared to Makefile.depend 743_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 744.if ${_debug_search} 745.info Looking for ${_qm} 746.endif 747# set this "just in case" 748# we can skip :tA since we computed the path above 749DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 750# and reset this 751DIRDEPS = 752.if ${_debug_reldir} && ${_qm} != ${_m} 753.info loading ${_m} for ${d:E} 754.endif 755.include <${_m}> 756.else 757.-include <local.dirdeps-missing.mk> 758.endif 759.endif 760.endif 761.endfor 762 763.endif # -V 764.endif # BUILD_DIRDEPS 765 766.elif ${.MAKE.LEVEL} > 42 767.error You should have stopped recursing by now. 768.else 769# we are building something 770DEP_RELDIR := ${RELDIR} 771_DEP_RELDIR := ${RELDIR} 772# Since we are/should be included by .MAKE.DEPENDFILE 773# This is a final opportunity to add/hook global rules. 774.-include <local.dirdeps-build.mk> 775 776# pickup local dependencies 777.if ${MAKE_VERSION} < 20160220 778.-include <.depend> 779.else 780.dinclude <.depend> 781.endif 782.endif 783 784# bootstrapping new dependencies made easy? 785.if !target(bootstrap) && (make(bootstrap) || \ 786 make(bootstrap-this) || \ 787 make(bootstrap-recurse) || \ 788 make(bootstrap-empty)) 789 790# if we are bootstrapping create the default 791_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 792 793.if exists(${_want}) 794# stop here 795${.TARGETS:Mboot*}: 796.elif !make(bootstrap-empty) 797# find a Makefile.depend to use as _src 798_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 799.if empty(_src) 800.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 801.endif 802 803_src?= ${.MAKE.DEPENDFILE} 804 805.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 806 807# just create Makefile.depend* for this dir 808bootstrap-this: .NOTMAIN 809 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 810 echo You need to build ${RELDIR} to correctly populate it. 811.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 812 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T}) 813.else 814 cp ${.CURDIR}/${_src:T} ${_want} 815.endif 816 817# create Makefile.depend* for this dir and its dependencies 818bootstrap: bootstrap-recurse 819bootstrap-recurse: bootstrap-this 820 821_mf := ${.PARSEFILE} 822bootstrap-recurse: .NOTMAIN .MAKE 823 @cd ${SRCTOP} && \ 824 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 825 test -d $$d || d=$${d%.*}; \ 826 test -d $$d || continue; \ 827 echo "Checking $$d for bootstrap ..."; \ 828 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 829 done 830 831.endif 832 833# create an empty Makefile.depend* to get the ball rolling. 834bootstrap-empty: .NOTMAIN .NOMETA 835 @echo Creating empty ${RELDIR}/${_want:T}; \ 836 echo You need to build ${RELDIR} to correctly populate it. 837 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 838 839.endif 840