1# $FreeBSD$ 2# $Id: dirdeps.mk,v 1.147 2021/12/14 02:09:53 sjg Exp $ 3 4# Copyright (c) 2010-2021, Simon J. Gerraty 5# Copyright (c) 2010-2018, Juniper Networks, Inc. 6# All rights reserved. 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29# Much of the complexity here is for supporting cross-building. 30# If a tree does not support that, simply using plain Makefile.depend 31# should provide sufficient clue. 32# Otherwise the recommendation is to use Makefile.depend.${MACHINE} 33# as expected below. 34 35# Note: this file gets multiply included. 36# This is what we do with DIRDEPS 37 38# DIRDEPS: 39# This is a list of directories - relative to SRCTOP, it is 40# normally only of interest to .MAKE.LEVEL 0. 41# In some cases the entry may be qualified with a .<machine> 42# or .<target_spec> suffix (see TARGET_SPEC_VARS below), 43# for example to force building something for the pseudo 44# machines "host" or "common" regardless of current ${MACHINE}. 45# 46# All unqualified entries end up being qualified with .${TARGET_SPEC} 47# and partially qualified (if TARGET_SPEC_VARS has multiple 48# entries) are also expanded to a full .<target_spec>. 49# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC 50# correctly when visiting each entry. 51# 52# The fully qualified directory entries are used to construct a 53# dependency graph that will drive the build later. 54# 55# Also, for each fully qualified directory target, we will search 56# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional 57# dependencies. We use Makefile.depend (default value for 58# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to 59# distinguish them from others. 60# 61# Before each Makefile.depend file is read, we set 62# DEP_RELDIR to be the RELDIR (path relative to SRCTOP) for 63# its directory, and DEP_MACHINE etc according to the .<target_spec> 64# represented by the suffix of the corresponding target. 65# 66# Since each Makefile.depend file includes dirdeps.mk, this 67# processing is recursive and results in .MAKE.LEVEL 0 learning the 68# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 69# 70# NOTE: given the extent of processing that DIRDEPS undergoes it 71# is important that any variables in entries use :U to guard 72# against surprises when undefined. 73# 74# TARGET_SPEC_VARS 75# The default value is just MACHINE, and for most environments 76# this is sufficient. The _DIRDEP_USE target actually sets 77# both MACHINE and TARGET_SPEC to the suffix of the current 78# target so that in the general case TARGET_SPEC can be ignored. 79# 80# If more than MACHINE is needed then sys.mk needs to decompose 81# TARGET_SPEC and set the relevant variables accordingly. 82# It is important that MACHINE be included in and actually be 83# the first member of TARGET_SPEC_VARS. This allows other 84# variables to be considered optional, and some of the treatment 85# below relies on MACHINE being the first entry. 86# Note: TARGET_SPEC cannot contain any '.'s so the target 87# triple used by compiler folk won't work (directly anyway). 88# 89# For example: 90# 91# # Always list MACHINE first, 92# # other variables might be optional. 93# TARGET_SPEC_VARS = MACHINE TARGET_OS 94# .if ${TARGET_SPEC:Uno:M*,*} != "" 95# _tspec := ${TARGET_SPEC:S/,/ /g} 96# MACHINE := ${_tspec:[1]} 97# TARGET_OS := ${_tspec:[2]} 98# # etc. 99# # We need to stop that TARGET_SPEC affecting any submakes 100# # and deal with MACHINE=${TARGET_SPEC} in the environment. 101# TARGET_SPEC = 102# # export but do not track 103# .export-env TARGET_SPEC 104# .export ${TARGET_SPEC_VARS} 105# .for v in ${TARGET_SPEC_VARS:O:u} 106# .if empty($v) 107# .undef $v 108# .endif 109# .endfor 110# .endif 111# # make sure we know what TARGET_SPEC is 112# # as we may need it to find Makefile.depend* 113# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 114# 115# The following variables can influence the initial DIRDEPS 116# computation with regard to the TARGET_SPECs that will be 117# built. 118# Most should also be considered by init.mk 119# 120# ONLY_TARGET_SPEC_LIST 121# Defines a list of TARGET_SPECs for which the current 122# directory can be built. 123# If ALL_MACHINES is defined, we build for all the 124# TARGET_SPECs listed. 125# 126# ONLY_MACHINE_LIST 127# As for ONLY_TARGET_SPEC_LIST but only specifies 128# MACHINEs. 129# 130# NOT_TARGET_SPEC_LIST 131# A list of TARGET_SPECs for which the current 132# directory should not be built. 133# 134# NOT_MACHINE_LIST 135# A list of MACHINEs the current directory should not be 136# built for. 137# 138# _build_xtra_dirs 139# local.dirdeps.mk can add targets to this variable. 140# They will be hooked into the build, but independent of 141# any other DIRDEP. 142# 143# This allows for adding TESTS to the build, such that the build 144# if any test fails, but without the risk of introducing 145# circular dependencies. 146 147now_utc ?= ${%s:L:gmtime} 148.if !defined(start_utc) 149start_utc := ${now_utc} 150.endif 151 152.if !target(bootstrap) && (make(bootstrap) || \ 153 make(bootstrap-this) || \ 154 make(bootstrap-recurse) || \ 155 make(bootstrap-empty)) 156# disable most of below 157.MAKE.LEVEL = 1 158.endif 159 160# touch this at your peril 161_DIRDEP_USE_LEVEL?= 0 162.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 163# only the first instance is interested in all this 164 165.if !target(_DIRDEP_USE) 166 167# do some setup we only need once 168_CURDIR ?= ${.CURDIR} 169_OBJDIR ?= ${.OBJDIR} 170 171.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 172# This little trick let's us do 173# 174# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 175# 176all: 177${.TARGETS:Nall}: all 178DIRDEPS := ${.TARGETS:M*[/.]*} 179# so that -DNO_DIRDEPS works 180DEP_RELDIR := ${DIRDEPS:[1]:R} 181# this will become DEP_MACHINE below 182TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 183.if ${TARGET_MACHINE:N*/*} == "" 184TARGET_MACHINE := ${MACHINE} 185.endif 186# disable DIRDEPS_CACHE as it does not like this trick 187MK_DIRDEPS_CACHE = no 188.endif 189 190# make sure we get the behavior we expect 191.MAKE.SAVE_DOLLARS = no 192 193# make sure these are empty to start with 194_DEP_TARGET_SPEC = 195 196# If TARGET_SPEC_VARS is other than just MACHINE 197# it should be set by sys.mk or similar by now. 198# TARGET_SPEC must not contain any '.'s. 199TARGET_SPEC_VARS ?= MACHINE 200# this is what we started with 201TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 202# this is what we mostly use below 203DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 204# make sure we have defaults 205.for v in ${TARGET_SPEC_VARS} 206DEP_$v ?= ${$v} 207.endfor 208 209.if ${TARGET_SPEC_VARS:[#]} > 1 210# Ok, this gets more complex (putting it mildly). 211# In order to stay sane, we need to ensure that all the build_dirs 212# we compute below are fully qualified wrt DEP_TARGET_SPEC. 213# The makefiles may only partially specify (eg. MACHINE only), 214# so we need to construct a set of modifiers to fill in the gaps. 215.if ${MAKE_VERSION} >= 20170130 216_tspec_x := ${TARGET_SPEC_VARS:range} 217.else 218# do it the hard way 219_tspec_x := ${TARGET_SPEC_VARS:[#]:@x@i=1;while [ $$i -le $x ]; do echo $$i; i=$$((i + 1)); done;@:sh} 220.endif 221# this handles unqualified entries 222M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 223# there needs to be at least one item missing for these to make sense 224.for i in ${_tspec_x:[2..-1]} 225_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 226_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 227M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 228.endfor 229TARGET_SPEC_VARSr := ${TARGET_SPEC_VARS:[-1..1]} 230.else 231# A harmless? default. 232M_dep_qual_fixes = U 233.endif 234 235.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 236# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 237# you really want this set by sys.mk or similar 238.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 239.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 240.if ${TARGET_SPEC} != ${MACHINE} 241.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 242.endif 243.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 244.endif 245.endif 246 247_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 248_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 249 250# for machine specific dependfiles we require ${MACHINE} to be at the end 251# also for the sake of sanity we require a common prefix 252.if !defined(.MAKE.DEPENDFILE_PREFIX) 253# knowing .MAKE.DEPENDFILE_PREFIX helps 254.if !empty(_machine_dependfiles) 255.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 256.else 257.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 258.endif 259.endif 260 261 262# this is how we identify non-machine specific dependfiles 263N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 264 265.endif # !target(_DIRDEP_USE) 266 267# First off, we want to know what ${MACHINE} to build for. 268# This can be complicated if we are using a mixture of ${MACHINE} specific 269# and non-specific Makefile.depend* 270 271# if we were included recursively _DEP_TARGET_SPEC should be valid. 272.if empty(_DEP_TARGET_SPEC) 273DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 274_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 275.if ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" 276# record that we've read dependfile for this 277_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 278.endif 279.endif 280 281# by now _DEP_TARGET_SPEC should be set, parse it. 282.if ${TARGET_SPEC_VARS:[#]} > 1 283# we need to parse DEP_MACHINE may or may not contain more info 284_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 285.for i in ${_tspec_x} 286DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 287.endfor 288.for v in ${TARGET_SPEC_VARS:O:u} 289.if empty(DEP_$v) 290.undef DEP_$v 291.endif 292.endfor 293.else 294DEP_MACHINE := ${_DEP_TARGET_SPEC} 295.endif 296 297# reset each time through 298_build_all_dirs = 299_build_xtra_dirs = 300 301# the first time we are included the _DIRDEP_USE target will not be defined 302# we can use this as a clue to do initialization and other one time things. 303.if !target(_DIRDEP_USE) 304# make sure this target exists 305dirdeps: beforedirdeps .WAIT 306beforedirdeps: 307 308# We normally expect to be included by Makefile.depend.* 309# which sets the DEP_* macros below. 310DEP_RELDIR ?= ${RELDIR} 311 312# this can cause lots of output! 313# set to a set of glob expressions that might match RELDIR 314DEBUG_DIRDEPS ?= no 315 316# remember the initial value of DEP_RELDIR - we test for it below. 317_DEP_RELDIR := ${DEP_RELDIR} 318 319.endif 320 321# DIRDEPS_CACHE can be very handy for debugging. 322# Also if repeatedly building the same target, 323# we can avoid the overhead of re-computing the tree dependencies. 324MK_DIRDEPS_CACHE ?= no 325BUILD_DIRDEPS_CACHE ?= no 326BUILD_DIRDEPS ?= yes 327 328.if ${MK_DIRDEPS_CACHE} == "yes" 329# this is where we will cache all our work 330DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${_TARGETS:U${.TARGETS}:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 331.endif 332 333.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 334_debug_reldir = 1 335.else 336_debug_reldir = 0 337.endif 338.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 339_debug_search = 1 340.else 341_debug_search = 0 342.endif 343 344# pickup customizations 345# as below you can use !target(_DIRDEP_USE) to protect things 346# which should only be done once. 347.-include <local.dirdeps.mk> 348 349.if !target(_DIRDEP_USE) 350# things we skip for host tools 351SKIP_HOSTDIR ?= 352 353NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 354 355# things we always skip 356# SKIP_DIRDEPS allows for adding entries on command line. 357SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 358SKIP_DIR.host += ${SKIP_HOSTDIR} 359 360DEP_SKIP_DIR = ${SKIP_DIR} \ 361 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 362 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 363 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 364 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 365 366 367NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 368 369.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 370NO_DIRDEPS = 371.elif defined(WITHOUT_DIRDEPS_BELOW) 372NO_DIRDEPS_BELOW = 373.endif 374 375.if defined(NO_DIRDEPS) 376# confine ourselves to the original dir and below. 377DIRDEPS_FILTER += M${_DEP_RELDIR}* 378.elif defined(NO_DIRDEPS_BELOW) 379DIRDEPS_FILTER += M${_DEP_RELDIR} 380.endif 381 382# this is what we run below 383DIRDEP_MAKE ?= ${.MAKE} 384DIRDEP_DIR ?= ${.TARGET:R} 385 386# if you want us to report load averages during build 387# DIRDEP_USE_PRELUDE += ${DIRDEP_LOADAVG_REPORT}; 388 389DIRDEP_LOADAVG_CMD ?= ${UPTIME:Uuptime} | sed 's,.*\(load\),\1,' 390DIRDEP_LOADAVG_LAST = 0 391# yes the expression here is a bit complicated, 392# the trick is to only eval ${DIRDEP_LOADAVG_LAST::=${now_utc}} 393# when we want to report. 394# Note: expr(1) will exit 1 if the expression evaluates to 0 395# hence the || true 396DIRDEP_LOADAVG_REPORT = \ 397 test -z "${"${expr ${now_utc} - ${DIRDEP_LOADAVG_INTEVAL:U60} - ${DIRDEP_LOADAVG_LAST} || true:L:sh:N-*}":?yes${DIRDEP_LOADAVG_LAST::=${now_utc}}:}" || \ 398 echo "${TRACER}`${DIRDEP_LOADAVG_CMD}`" 399 400# we suppress SUBDIR when visiting the leaves 401# we assume sys.mk will set MACHINE_ARCH 402# you can add extras to DIRDEP_USE_ENV 403# if there is no makefile in the target directory, we skip it. 404_DIRDEP_USE: .USE .MAKE 405 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 406 test -s ${.TARGET:R}/$$m || continue; \ 407 echo "${TRACER}Checking ${.TARGET:S,^${SRCTOP}/,,} for ${.TARGET:E} ..."; \ 408 ${DIRDEP_USE_PRELUDE} \ 409 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 410 TARGET_SPEC=${.TARGET:E} \ 411 MACHINE=${.TARGET:E} \ 412 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \ 413 break; \ 414 done 415 416.ifdef ALL_MACHINES 417.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 418# we start with everything 419_machine_list != echo; 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}* 2> /dev/null 420 421# some things we know we want to ignore 422DIRDEPS_TARGETS_SKIP_LIST += \ 423 *~ \ 424 *.bak \ 425 *.inc \ 426 *.old \ 427 *.options \ 428 *.orig \ 429 *.rej \ 430 431# first trim things we know we want to skip 432# and provide canonical form 433_machine_list := ${_machine_list:${DIRDEPS_TARGETS_SKIP_LIST:${M_ListToSkip}}:T:E} 434 435# cater for local complexities 436# local.dirdeps.mk can set 437# DIRDEPS_ALL_MACHINES_FILTER and 438# DIRDEPS_ALL_MACHINES_FILTER_XTRAS for final tweaks 439 440.if !empty(ALL_TARGET_SPEC_LIST) 441.if ${_debug_reldir} 442.info ALL_TARGET_SPEC_LIST=${ALL_TARGET_SPEC_LIST} 443.endif 444DIRDEPS_ALL_MACHINES_FILTER += \ 445 @x@$${ALL_TARGET_SPEC_LIST:@s@$${x:M$$s}@}@ 446.elif !empty(ALL_MACHINE_LIST) 447.if ${_debug_reldir} 448.info ALL_MACHINE_LIST=${ALL_MACHINE_LIST} 449.endif 450.if ${TARGET_SPEC_VARS:[#]} > 1 451# the space below can result in extraneous ':' 452DIRDEPS_ALL_MACHINES_FILTER += \ 453 @x@$${ALL_MACHINE_LIST:@m@$${x:M$$m,*} $${x:M$$m}@}@ 454.else 455DIRDEPS_ALL_MACHINES_FILTER += \ 456 @x@$${ALL_MACHINE_LIST:@m@$${x:M$$m}@}@ 457.endif 458.endif 459# add local XTRAS - default to something benign 460DIRDEPS_ALL_MACHINES_FILTER += \ 461 ${DIRDEPS_ALL_MACHINES_FILTER_XTRAS:UNbak} 462 463.if ${_debug_reldir} 464.info _machine_list=${_machine_list} 465.info DIRDEPS_ALL_MACHINES_FILTER=${DIRDEPS_ALL_MACHINES_FILTER} 466.endif 467 468_only_machines := ${_machine_list:${DIRDEPS_ALL_MACHINES_FILTER:ts:}:S,:, ,g} 469.else 470_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 471.endif 472 473.if empty(_only_machines) 474# we must be boot-strapping 475_only_machines := ${TARGET_MACHINE:U${ALL_TARGET_SPEC_LIST:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}}} 476.endif 477 478# cleanup the result 479_only_machines := ${_only_machines:O:u} 480 481.if ${_debug_reldir} 482.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: ALL_MACHINES _only_machines=${_only_machines} 483.endif 484 485.else # ! ALL_MACHINES 486# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 487# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 488# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 489# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 490_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 491.if empty(_only_machines) 492_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 493.endif 494.endif 495 496.if !empty(NOT_MACHINE_LIST) 497_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 498.endif 499.if !empty(NOT_TARGET_SPEC_LIST) 500# we must first qualify 501_dm := ${DEP_MACHINE} 502_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 503DEP_MACHINE := ${_dm} 504_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 505.endif 506# clean up 507_only_machines := ${_only_machines:O:u} 508 509.if ${_debug_reldir} 510.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _only_machines=${_only_machines} 511.endif 512 513# make sure we have a starting place? 514DIRDEPS ?= ${RELDIR} 515.endif # target 516 517.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 518.if ${MK_DIRDEPS_CACHE} == "yes" 519 520# just ensure this exists 521build-dirdeps: 522 523M_oneperline = @x@\\${.newline} $$x@ 524 525.if ${BUILD_DIRDEPS_CACHE} == "no" 526.if !target(dirdeps-cached) 527# we do this via sub-make 528BUILD_DIRDEPS = no 529 530# ignore anything but these 531.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 532 533dirdeps: dirdeps-cached 534dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 535 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 536 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 537 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 538 539# leaf makefiles rarely work for building DIRDEPS_CACHE 540.if ${RELDIR} != "." 541BUILD_DIRDEPS_MAKEFILE ?= -f dirdeps.mk 542.endif 543 544# these should generally do 545BUILD_DIRDEPS_MAKEFILE ?= 546BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 547 548.if ${DIRDEPS_CACHE} != ${STATIC_DIRDEPS_CACHE:Uno} && ${DIRDEPS_CACHE:M${SRCTOP}/*} == "" 549# export this for dirdeps-cache-update.mk 550DYNAMIC_DIRDEPS_CACHE := ${DIRDEPS_CACHE} 551.export DYNAMIC_DIRDEPS_CACHE 552# we need the .meta file to ensure we update if 553# any of the Makefile.depend* changed. 554# We do not want to compare the command line though. 555${DIRDEPS_CACHE}: .META .NOMETA_CMP 556 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 557 echo 'BUILD_DIRDEPS=no'; echo; \ 558 echo '.include <dirdeps.mk>'; echo; \ 559 } > ${.TARGET}.new 560 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 561 DIRDEPS="${DIRDEPS}" \ 562 TARGET_SPEC=${TARGET_SPEC} \ 563 MAKEFLAGS= ${DIRDEP_CACHE_MAKE:U${.MAKE}} -C ${_CURDIR} \ 564 ${BUILD_DIRDEPS_MAKEFILE} \ 565 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 566 .MAKE.DEPENDFILE=.none \ 567 ${"${DEBUG_DIRDEPS:Nno}":?DEBUG_DIRDEPS='${DEBUG_DIRDEPS}':} \ 568 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 569 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \ 570 3>&1 1>&2 | sed 's,${SRCTOP},_{SRCTOP},g;s,_{,$${,g' >> ${.TARGET}.new && \ 571 mv ${.TARGET}.new ${.TARGET} 572 573.endif 574.endif 575.elif !target(_count_dirdeps) 576# we want to capture the dirdeps count in the cache 577.END: _count_dirdeps 578_count_dirdeps: .NOMETA 579 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS}'; } >&3 580 581.endif 582.elif !make(dirdeps) && !target(_count_dirdeps) 583beforedirdeps: _count_dirdeps 584_count_dirdeps: .NOMETA 585 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS} seconds=`expr ${now_utc} - ${start_utc}`" 586 587.endif 588.endif 589 590.if ${BUILD_DIRDEPS} == "yes" 591 592# the rest is done repeatedly for every Makefile.depend we read. 593# if we are anything but the original dir we care only about the 594# machine type we were included for.. 595 596.if ${DEP_RELDIR} == "." 597_this_dir := ${SRCTOP} 598.else 599_this_dir := ${SRCTOP}/${DEP_RELDIR} 600.endif 601 602# on rare occasions, there can be a need for extra help 603_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 604.-include <${_dep_hack}> 605.-include <${_dep_hack:R}.options> 606 607.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 608# this should be all 609_machines := ${DEP_MACHINE} 610.else 611# this is the machine list we actually use below 612_machines := ${_only_machines} 613 614.if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == "" 615# we need to build this guy's dependencies for host as well. 616.if ${DEP_MACHINE:Nhost*} == "" 617_machines += ${DEP_MACHINE} 618.else 619_machines += host 620.endif 621.endif 622 623_machines := ${_machines:O:u} 624.endif 625 626.if ${TARGET_SPEC_VARS:[#]} > 1 627# we need to tweak _machines 628_dm := ${DEP_MACHINE} 629# apply the same filtering that we do when qualifying DIRDEPS. 630# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 631# Again we expect that any already qualified machines are fully qualified. 632_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 633DEP_MACHINE := ${_dm} 634_machines := ${_machines:O:u} 635.endif 636 637# reset each time through 638_build_dirs = 639 640.if ${DEP_RELDIR} == ${_DEP_RELDIR} 641# pickup other machines for this dir if necessary 642_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 643.endif 644 645.if ${_debug_reldir} 646.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: nDIRDEPS=${DIRDEPS:[#]} 647.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 648.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 649.endif 650 651.if !empty(DIRDEPS) 652# these we reset each time through as they can depend on DEP_MACHINE 653DEP_DIRDEPS_FILTER = \ 654 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 655 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 656 ${DIRDEPS_FILTER:U} 657.if empty(DEP_DIRDEPS_FILTER) 658# something harmless 659DEP_DIRDEPS_FILTER = U 660.endif 661 662# this is what we start with 663__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 664 665# some entries may be qualified with .<machine> or .<target_spec> 666# we can tell the unqualified ones easily - because they exist 667__unqual_depdirs := ${__depdirs:@d@${exists($d):?$d:}@} 668__qual_depdirs := ${__depdirs:${__unqual_depdirs:Uno:${M_ListToSkip}}} 669 670.if ${DEP_RELDIR} == ${_DEP_RELDIR} 671# if it was called out - we likely need it. 672__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \ 673 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@} 674__qual_depdirs += ${__hostdpadd} 675.endif 676 677.if ${_debug_reldir} 678.info DEP_DIRDEPS_FILTER=${DEP_DIRDEPS_FILTER:ts:} 679.info depdirs=${__depdirs:S,^${SRCTOP}/,,} 680.info qualified=${__qual_depdirs:S,^${SRCTOP}/,,} 681.info unqualified=${__unqual_depdirs:S,^${SRCTOP}/,,} 682.endif 683 684# _build_dirs is what we will feed to _DIRDEP_USE 685_build_dirs += \ 686 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 687 ${__qual_depdirs:N*.host} \ 688 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 689 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 690 691# qualify everything now 692_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 693 694.endif # empty DIRDEPS 695 696_build_all_dirs += ${_build_dirs} ${_build_xtra_dirs} 697_build_all_dirs := ${_build_all_dirs:O:u} 698 699# Normally if doing make -V something, 700# we do not want to waste time chasing DIRDEPS 701# but if we want to count the number of Makefile.depend* read, we do. 702.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS:U}} == "" 703.if !empty(_build_all_dirs) 704.if ${BUILD_DIRDEPS_CACHE} == "yes" 705x!= echo; { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; } >&3 706# guard against _new_dirdeps being too big for a single command line 707_new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@:S,^${SRCTOP}/,,} 708_cache_xtra_deps := ${_build_xtra_dirs:S,^${SRCTOP}/,,} 709.export _cache_xtra_deps _new_dirdeps 710.if !empty(DEP_EXPORT_VARS) 711# Discouraged, but there are always exceptions. 712# Handle it here rather than explain how. 713x!= echo; { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3 714.endif 715.else 716# this makes it all happen 717dirdeps: ${_build_all_dirs} 718.endif 719${_build_all_dirs}: _DIRDEP_USE 720 721.if ${_debug_reldir} 722.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs:S,^${SRCTOP}/,,} 723.endif 724 725.if !empty(DEP_EXPORT_VARS) 726.export ${DEP_EXPORT_VARS} 727DEP_EXPORT_VARS= 728.endif 729 730# this builds the dependency graph 731.for m in ${_machines} 732.if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs) 733_cache_deps = 734x!= echo; { echo; echo 'DIRDEPS.${_this_dir}.$m = \'; } >&3 735.endif 736# it would be nice to do :N${.TARGET} 737.if !empty(__qual_depdirs) 738.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 739.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 740.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q:S,^${SRCTOP}/,,} 741.endif 742.if ${BUILD_DIRDEPS_CACHE} == "yes" 743_cache_deps += ${_build_dirs:M*.$q:S,^${SRCTOP}/,,} 744.else 745${_this_dir}.$m: ${_build_dirs:M*.$q} 746.endif 747.endfor 748.endif 749.if ${_debug_reldir} 750.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m:S,^${SRCTOP}/,,} 751.endif 752.if ${BUILD_DIRDEPS_CACHE} == "yes" 753.if !empty(_build_dirs) 754_cache_deps += ${_build_dirs:M*.$m:N${_this_dir}.$m:S,^${SRCTOP}/,,} 755.if !empty(_cache_deps) 756.export _cache_deps 757x!= echo; for x in $$_cache_deps; do echo " _{SRCTOP}/$$x \\"; done >&3 758.endif 759# anything in _{build,env}_xtra_dirs is hooked to dirdeps: only 760x!= echo; { echo; echo '${_this_dir}.$m: $${DIRDEPS.${_this_dir}.$m}'; \ 761 echo; echo 'dirdeps: ${_this_dir}.$m \'; \ 762 for x in $$_cache_xtra_deps; do echo " _{SRCTOP}/$$x \\"; done; \ 763 echo; for x in $$_new_dirdeps; do echo "_{SRCTOP}/$$x: _DIRDEP_USE"; done; } >&3 764.endif 765.else 766${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 767.endif 768.endfor 769 770.endif 771 772# Now find more dependencies - and recurse. 773.for d in ${_build_all_dirs} 774.if !target(_dirdeps_checked.$d) 775# once only 776_dirdeps_checked.$d: 777.if ${_debug_search} 778.info checking ${d:S,^${SRCTOP}/,,} 779.endif 780# Note: _build_all_dirs is fully qualifed so d:R is always the directory 781.if exists(${d:R}) 782# we pass _DEP_TARGET_SPEC to tell the next step what we want 783_DEP_TARGET_SPEC := ${d:E} 784# some makefiles may still look at this 785_DEP_MACHINE := ${d:E:C/,.*//} 786# set these too in case Makefile.depend* uses them 787.if ${TARGET_SPEC_VARS:[#]} > 1 788_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 789.for i in ${_tspec_x} 790DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 791.endfor 792.else 793DEP_MACHINE := ${_DEP_MACHINE} 794.endif 795# Warning: there is an assumption here that MACHINE is always 796# the first entry in TARGET_SPEC_VARS. 797# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 798_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:C;${MACHINE}((,.+)?)$;${d:E:C/,.*//}\1;:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 799.if !empty(_m) 800# M_dep_qual_fixes isn't geared to Makefile.depend 801_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 802.if ${_debug_search} 803.info Looking for ${_qm} 804.endif 805# set this "just in case" 806# we can skip :tA since we computed the path above 807DEP_RELDIR := ${_m:H:S,^${SRCTOP}/,,} 808# and reset this 809DIRDEPS = 810.if ${_debug_reldir} && ${_qm} != ${_m} 811.info loading ${_m} for ${d:E} 812.endif 813.include <${_m}> 814.else 815.-include <local.dirdeps-missing.mk> 816.endif 817.endif 818.endif 819.endfor 820 821.endif # -V 822.endif # BUILD_DIRDEPS 823 824.elif ${.MAKE.LEVEL} > 42 825.error You should have stopped recursing by now. 826.else 827# we are building something 828DEP_RELDIR := ${RELDIR} 829_DEP_RELDIR := ${RELDIR} 830# Since we are/should be included by .MAKE.DEPENDFILE 831# This is a final opportunity to add/hook global rules. 832.-include <local.dirdeps-build.mk> 833 834# skip _reldir_{finish,failed} if not included from Makefile.depend* 835# or not in meta mode 836.if !defined(WITHOUT_META_STATS) && ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" && ${.MAKE.MODE:Mmeta} != "" 837 838meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 839 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 840 841.if !target(_reldir_finish) 842.END: _reldir_finish 843_reldir_finish: .NOMETA 844 @echo "${TRACER}Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 845.endif 846 847.if !target(_reldir_failed) 848.ERROR: _reldir_failed 849_reldir_failed: .NOMETA 850 @echo "${TRACER}Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 851.endif 852 853.endif 854 855# pickup local dependencies 856.if ${MAKE_VERSION} < 20160220 857.-include <.depend> 858.else 859.dinclude <.depend> 860.endif 861.endif 862 863# bootstrapping new dependencies made easy? 864.if !target(bootstrap-empty) 865.if !target(bootstrap) && (make(bootstrap) || \ 866 make(bootstrap-this) || \ 867 make(bootstrap-recurse) || \ 868 make(bootstrap-empty)) 869 870# if we are bootstrapping create the default 871_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 872 873.if exists(${_want}) 874# stop here 875${.TARGETS:Mboot*}: 876.elif !make(bootstrap-empty) 877# find a Makefile.depend to use as _src 878_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 879.if empty(_src) 880.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 881.endif 882 883_src?= ${.MAKE.DEPENDFILE} 884 885.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 886 887# just create Makefile.depend* for this dir 888bootstrap-this: .NOTMAIN 889 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 890 echo You need to build ${RELDIR} to correctly populate it. 891.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 892 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T}) 893.else 894 cp ${.CURDIR}/${_src:T} ${_want} 895.endif 896 897# create Makefile.depend* for this dir and its dependencies 898bootstrap: bootstrap-recurse 899bootstrap-recurse: bootstrap-this 900 901_mf := ${.PARSEFILE} 902bootstrap-recurse: .NOTMAIN .MAKE 903 @cd ${SRCTOP} && \ 904 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 905 test -d $$d || d=$${d%.*}; \ 906 test -d $$d || continue; \ 907 echo "Checking $$d for bootstrap ..."; \ 908 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 909 done 910 911.endif 912 913# create an empty Makefile.depend* to get the ball rolling. 914bootstrap-empty: .NOTMAIN .NOMETA 915 @echo Creating empty ${RELDIR}/${_want:T}; \ 916 echo You need to build ${RELDIR} to correctly populate it. 917 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 918 919.endif 920.endif 921