1# $Id: dirdeps.mk,v 1.140 2021/06/20 23:42:38 sjg Exp $ 2 3# Copyright (c) 2010-2021, 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# TARGET_SPEC_VARS 70# The default value is just MACHINE, and for most environments 71# this is sufficient. The _DIRDEP_USE target actually sets 72# both MACHINE and TARGET_SPEC to the suffix of the current 73# target so that in the general case TARGET_SPEC can be ignored. 74# 75# If more than MACHINE is needed then sys.mk needs to decompose 76# TARGET_SPEC and set the relevant variables accordingly. 77# It is important that MACHINE be included in and actually be 78# the first member of TARGET_SPEC_VARS. This allows other 79# variables to be considered optional, and some of the treatment 80# below relies on MACHINE being the first entry. 81# Note: TARGET_SPEC cannot contain any '.'s so the target 82# triple used by compiler folk won't work (directly anyway). 83# 84# For example: 85# 86# # Always list MACHINE first, 87# # other variables might be optional. 88# TARGET_SPEC_VARS = MACHINE TARGET_OS 89# .if ${TARGET_SPEC:Uno:M*,*} != "" 90# _tspec := ${TARGET_SPEC:S/,/ /g} 91# MACHINE := ${_tspec:[1]} 92# TARGET_OS := ${_tspec:[2]} 93# # etc. 94# # We need to stop that TARGET_SPEC affecting any submakes 95# # and deal with MACHINE=${TARGET_SPEC} in the environment. 96# TARGET_SPEC = 97# # export but do not track 98# .export-env TARGET_SPEC 99# .export ${TARGET_SPEC_VARS} 100# .for v in ${TARGET_SPEC_VARS:O:u} 101# .if empty($v) 102# .undef $v 103# .endif 104# .endfor 105# .endif 106# # make sure we know what TARGET_SPEC is 107# # as we may need it to find Makefile.depend* 108# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 109# 110# The following variables can influence the initial DIRDEPS 111# computation with regard to the TARGET_SPECs that will be 112# built. 113# Most should also be considered by init.mk 114# 115# ONLY_TARGET_SPEC_LIST 116# Defines a list of TARGET_SPECs for which the current 117# directory can be built. 118# If ALL_MACHINES is defined, we build for all the 119# TARGET_SPECs listed. 120# 121# ONLY_MACHINE_LIST 122# As for ONLY_TARGET_SPEC_LIST but only specifies 123# MACHINEs. 124# 125# NOT_TARGET_SPEC_LIST 126# A list of TARGET_SPECs for which the current 127# directory should not be built. 128# 129# NOT_MACHINE_LIST 130# A list of MACHINEs the current directory should not be 131# built for. 132# 133# _build_xtra_dirs 134# local.dirdeps.mk can add targets to this variable. 135# They will be hooked into the build, but independent of 136# any other DIRDEP. 137# 138# This allows for adding TESTS to the build, such that the build 139# if any test fails, but without the risk of introducing 140# circular dependencies. 141 142now_utc ?= ${%s:L:gmtime} 143.if !defined(start_utc) 144start_utc := ${now_utc} 145.endif 146 147.if !target(bootstrap) && (make(bootstrap) || \ 148 make(bootstrap-this) || \ 149 make(bootstrap-recurse) || \ 150 make(bootstrap-empty)) 151# disable most of below 152.MAKE.LEVEL = 1 153.endif 154 155# touch this at your peril 156_DIRDEP_USE_LEVEL?= 0 157.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 158# only the first instance is interested in all this 159 160.if !target(_DIRDEP_USE) 161 162# do some setup we only need once 163_CURDIR ?= ${.CURDIR} 164_OBJDIR ?= ${.OBJDIR} 165 166.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 167# This little trick let's us do 168# 169# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 170# 171all: 172${.TARGETS:Nall}: all 173DIRDEPS := ${.TARGETS:M*[/.]*} 174# so that -DNO_DIRDEPS works 175DEP_RELDIR := ${DIRDEPS:[1]:R} 176# this will become DEP_MACHINE below 177TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 178.if ${TARGET_MACHINE:N*/*} == "" 179TARGET_MACHINE := ${MACHINE} 180.endif 181# disable DIRDEPS_CACHE as it does not like this trick 182MK_DIRDEPS_CACHE = no 183.endif 184 185# make sure we get the behavior we expect 186.MAKE.SAVE_DOLLARS = no 187 188# make sure these are empty to start with 189_DEP_TARGET_SPEC = 190 191# If TARGET_SPEC_VARS is other than just MACHINE 192# it should be set by sys.mk or similar by now. 193# TARGET_SPEC must not contain any '.'s. 194TARGET_SPEC_VARS ?= MACHINE 195# this is what we started with 196TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 197# this is what we mostly use below 198DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 199# make sure we have defaults 200.for v in ${TARGET_SPEC_VARS} 201DEP_$v ?= ${$v} 202.endfor 203 204.if ${TARGET_SPEC_VARS:[#]} > 1 205# Ok, this gets more complex (putting it mildly). 206# In order to stay sane, we need to ensure that all the build_dirs 207# we compute below are fully qualified wrt DEP_TARGET_SPEC. 208# The makefiles may only partially specify (eg. MACHINE only), 209# so we need to construct a set of modifiers to fill in the gaps. 210.if ${MAKE_VERSION} >= 20170130 211_tspec_x := ${TARGET_SPEC_VARS:range} 212.else 213# do it the hard way 214_tspec_x := ${TARGET_SPEC_VARS:[#]:@x@i=1;while [ $$i -le $x ]; do echo $$i; i=$$((i + 1)); done;@:sh} 215.endif 216# this handles unqualified entries 217M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 218# there needs to be at least one item missing for these to make sense 219.for i in ${_tspec_x:[2..-1]} 220_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 221_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 222M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 223.endfor 224TARGET_SPEC_VARSr := ${TARGET_SPEC_VARS:[-1..1]} 225.else 226# A harmless? default. 227M_dep_qual_fixes = U 228.endif 229 230.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 231# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 232# you really want this set by sys.mk or similar 233.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 234.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 235.if ${TARGET_SPEC} != ${MACHINE} 236.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 237.endif 238.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 239.endif 240.endif 241 242_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 243_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 244 245# for machine specific dependfiles we require ${MACHINE} to be at the end 246# also for the sake of sanity we require a common prefix 247.if !defined(.MAKE.DEPENDFILE_PREFIX) 248# knowing .MAKE.DEPENDFILE_PREFIX helps 249.if !empty(_machine_dependfiles) 250.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 251.else 252.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 253.endif 254.endif 255 256 257# this is how we identify non-machine specific dependfiles 258N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 259 260.endif # !target(_DIRDEP_USE) 261 262# First off, we want to know what ${MACHINE} to build for. 263# This can be complicated if we are using a mixture of ${MACHINE} specific 264# and non-specific Makefile.depend* 265 266# if we were included recursively _DEP_TARGET_SPEC should be valid. 267.if empty(_DEP_TARGET_SPEC) 268DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 269_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 270.if ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" 271# record that we've read dependfile for this 272_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 273.endif 274.endif 275 276# by now _DEP_TARGET_SPEC should be set, parse it. 277.if ${TARGET_SPEC_VARS:[#]} > 1 278# we need to parse DEP_MACHINE may or may not contain more info 279_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 280.for i in ${_tspec_x} 281DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 282.endfor 283.for v in ${TARGET_SPEC_VARS:O:u} 284.if empty(DEP_$v) 285.undef DEP_$v 286.endif 287.endfor 288.else 289DEP_MACHINE := ${_DEP_TARGET_SPEC} 290.endif 291 292# reset each time through 293_build_all_dirs = 294_build_xtra_dirs = 295 296# the first time we are included the _DIRDEP_USE target will not be defined 297# we can use this as a clue to do initialization and other one time things. 298.if !target(_DIRDEP_USE) 299# make sure this target exists 300dirdeps: beforedirdeps .WAIT 301beforedirdeps: 302 303# We normally expect to be included by Makefile.depend.* 304# which sets the DEP_* macros below. 305DEP_RELDIR ?= ${RELDIR} 306 307# this can cause lots of output! 308# set to a set of glob expressions that might match RELDIR 309DEBUG_DIRDEPS ?= no 310 311# remember the initial value of DEP_RELDIR - we test for it below. 312_DEP_RELDIR := ${DEP_RELDIR} 313 314.endif 315 316# DIRDEPS_CACHE can be very handy for debugging. 317# Also if repeatedly building the same target, 318# we can avoid the overhead of re-computing the tree dependencies. 319MK_DIRDEPS_CACHE ?= no 320BUILD_DIRDEPS_CACHE ?= no 321BUILD_DIRDEPS ?= yes 322 323.if ${MK_DIRDEPS_CACHE} == "yes" 324# this is where we will cache all our work 325DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${_TARGETS:U${.TARGETS}:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 326.endif 327 328.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 329_debug_reldir = 1 330.else 331_debug_reldir = 0 332.endif 333.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 334_debug_search = 1 335.else 336_debug_search = 0 337.endif 338 339# pickup customizations 340# as below you can use !target(_DIRDEP_USE) to protect things 341# which should only be done once. 342.-include <local.dirdeps.mk> 343 344.if !target(_DIRDEP_USE) 345# things we skip for host tools 346SKIP_HOSTDIR ?= 347 348NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 349 350# things we always skip 351# SKIP_DIRDEPS allows for adding entries on command line. 352SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 353SKIP_DIR.host += ${SKIP_HOSTDIR} 354 355DEP_SKIP_DIR = ${SKIP_DIR} \ 356 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 357 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 358 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 359 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 360 361 362NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 363 364.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 365NO_DIRDEPS = 366.elif defined(WITHOUT_DIRDEPS_BELOW) 367NO_DIRDEPS_BELOW = 368.endif 369 370.if defined(NO_DIRDEPS) 371# confine ourselves to the original dir and below. 372DIRDEPS_FILTER += M${_DEP_RELDIR}* 373.elif defined(NO_DIRDEPS_BELOW) 374DIRDEPS_FILTER += M${_DEP_RELDIR} 375.endif 376 377# this is what we run below 378DIRDEP_MAKE ?= ${.MAKE} 379DIRDEP_DIR ?= ${.TARGET:R} 380 381# if you want us to report load averages during build 382# DIRDEP_USE_PRELUDE += ${DIRDEP_LOADAVG_REPORT}; 383 384DIRDEP_LOADAVG_CMD ?= ${UPTIME:Uuptime} | sed 's,.*\(load\),\1,' 385DIRDEP_LOADAVG_LAST = 0 386# yes the expression here is a bit complicated, 387# the trick is to only eval ${DIRDEP_LOADAVG_LAST::=${now_utc}} 388# when we want to report. 389# Note: expr(1) will exit 1 if the expression evaluates to 0 390# hence the || true 391DIRDEP_LOADAVG_REPORT = \ 392 test -z "${"${expr ${now_utc} - ${DIRDEP_LOADAVG_INTEVAL:U60} - ${DIRDEP_LOADAVG_LAST} || true:L:sh:N-*}":?yes${DIRDEP_LOADAVG_LAST::=${now_utc}}:}" || \ 393 echo "${TRACER}`${DIRDEP_LOADAVG_CMD}`" 394 395# we suppress SUBDIR when visiting the leaves 396# we assume sys.mk will set MACHINE_ARCH 397# you can add extras to DIRDEP_USE_ENV 398# if there is no makefile in the target directory, we skip it. 399_DIRDEP_USE: .USE .MAKE 400 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 401 test -s ${.TARGET:R}/$$m || continue; \ 402 echo "${TRACER}Checking ${.TARGET:S,${SRCTOP}/,,} for ${.TARGET:E} ..."; \ 403 ${DIRDEP_USE_PRELUDE} \ 404 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 405 TARGET_SPEC=${.TARGET:E} \ 406 MACHINE=${.TARGET:E} \ 407 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \ 408 break; \ 409 done 410 411.ifdef ALL_MACHINES 412.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 413# we start with everything 414_machine_list != echo; 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}* 2> /dev/null 415 416# some things we know we want to ignore 417DIRDEPS_TARGETS_SKIP_LIST += \ 418 *~ \ 419 *.bak \ 420 *.inc \ 421 *.old \ 422 *.options \ 423 *.orig \ 424 *.rej \ 425 426# first trim things we know we want to skip 427# and provide canonical form 428_machine_list := ${_machine_list:${DIRDEPS_TARGETS_SKIP_LIST:${M_ListToSkip}}:T:E} 429 430# cater for local complexities 431# local.dirdeps.mk can set 432# DIRDEPS_ALL_MACHINES_FILTER and 433# DIRDEPS_ALL_MACHINES_FILTER_XTRAS for final tweaks 434 435.if !empty(ALL_TARGET_SPEC_LIST) 436.if ${_debug_reldir} 437.info ALL_TARGET_SPEC_LIST=${ALL_TARGET_SPEC_LIST} 438.endif 439DIRDEPS_ALL_MACHINES_FILTER += \ 440 @x@$${ALL_TARGET_SPEC_LIST:@s@$${x:M$$s}@}@ 441.elif !empty(ALL_MACHINE_LIST) 442.if ${_debug_reldir} 443.info ALL_MACHINE_LIST=${ALL_MACHINE_LIST} 444.endif 445.if ${TARGET_SPEC_VARS:[#]} > 1 446# the space below can result in extraneous ':' 447DIRDEPS_ALL_MACHINES_FILTER += \ 448 @x@$${ALL_MACHINE_LIST:@m@$${x:M$$m,*} $${x:M$$m}@}@ 449.else 450DIRDEPS_ALL_MACHINES_FILTER += \ 451 @x@$${ALL_MACHINE_LIST:@m@$${x:M$$m}@}@ 452.endif 453.endif 454# add local XTRAS - default to something benign 455DIRDEPS_ALL_MACHINES_FILTER += \ 456 ${DIRDEPS_ALL_MACHINES_FILTER_XTRAS:UNbak} 457 458.if ${_debug_reldir} 459.info _machine_list=${_machine_list} 460.info DIRDEPS_ALL_MACHINES_FILTER=${DIRDEPS_ALL_MACHINES_FILTER} 461.endif 462 463_only_machines := ${_machine_list:${DIRDEPS_ALL_MACHINES_FILTER:ts:}:S,:, ,g} 464.else 465_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 466.endif 467 468.if empty(_only_machines) 469# we must be boot-strapping 470_only_machines := ${TARGET_MACHINE:U${ALL_TARGET_SPEC_LIST:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}}} 471.endif 472 473# cleanup the result 474_only_machines := ${_only_machines:O:u} 475 476.if ${_debug_reldir} 477.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: ALL_MACHINES _only_machines=${_only_machines} 478.endif 479 480.else # ! ALL_MACHINES 481# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 482# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 483# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 484# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 485_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 486.if empty(_only_machines) 487_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 488.endif 489.endif 490 491.if !empty(NOT_MACHINE_LIST) 492_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 493.endif 494.if !empty(NOT_TARGET_SPEC_LIST) 495# we must first qualify 496_dm := ${DEP_MACHINE} 497_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 498DEP_MACHINE := ${_dm} 499_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 500.endif 501# clean up 502_only_machines := ${_only_machines:O:u} 503 504.if ${_debug_reldir} 505.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _only_machines=${_only_machines} 506.endif 507 508# make sure we have a starting place? 509DIRDEPS ?= ${RELDIR} 510.endif # target 511 512.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 513.if ${MK_DIRDEPS_CACHE} == "yes" 514 515# just ensure this exists 516build-dirdeps: 517 518M_oneperline = @x@\\${.newline} $$x@ 519 520.if ${BUILD_DIRDEPS_CACHE} == "no" 521.if !target(dirdeps-cached) 522# we do this via sub-make 523BUILD_DIRDEPS = no 524 525# ignore anything but these 526.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 527 528dirdeps: dirdeps-cached 529dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 530 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 531 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 532 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 533 534# leaf makefiles rarely work for building DIRDEPS_CACHE 535.if ${RELDIR} != "." 536BUILD_DIRDEPS_MAKEFILE ?= -f dirdeps.mk 537.endif 538 539# these should generally do 540BUILD_DIRDEPS_MAKEFILE ?= 541BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 542 543.if ${DIRDEPS_CACHE} != ${STATIC_DIRDEPS_CACHE:Uno} && ${DIRDEPS_CACHE:M${SRCTOP}/*} == "" 544# export this for dirdeps-cache-update.mk 545DYNAMIC_DIRDEPS_CACHE := ${DIRDEPS_CACHE} 546.export DYNAMIC_DIRDEPS_CACHE 547# we need the .meta file to ensure we update if 548# any of the Makefile.depend* changed. 549# We do not want to compare the command line though. 550${DIRDEPS_CACHE}: .META .NOMETA_CMP 551 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 552 echo 'BUILD_DIRDEPS=no'; echo; \ 553 echo '.include <dirdeps.mk>'; echo; \ 554 } > ${.TARGET}.new 555 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 556 DIRDEPS="${DIRDEPS}" \ 557 TARGET_SPEC=${TARGET_SPEC} \ 558 MAKEFLAGS= ${DIRDEP_CACHE_MAKE:U${.MAKE}} -C ${_CURDIR} \ 559 ${BUILD_DIRDEPS_MAKEFILE} \ 560 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 561 .MAKE.DEPENDFILE=.none \ 562 ${"${DEBUG_DIRDEPS:Nno}":?DEBUG_DIRDEPS='${DEBUG_DIRDEPS}':} \ 563 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 564 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \ 565 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g;s,_{,$${,g' >> ${.TARGET}.new && \ 566 mv ${.TARGET}.new ${.TARGET} 567 568.endif 569.endif 570.elif !target(_count_dirdeps) 571# we want to capture the dirdeps count in the cache 572.END: _count_dirdeps 573_count_dirdeps: .NOMETA 574 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS}'; } >&3 575 576.endif 577.elif !make(dirdeps) && !target(_count_dirdeps) 578beforedirdeps: _count_dirdeps 579_count_dirdeps: .NOMETA 580 @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}`" 581 582.endif 583.endif 584 585.if ${BUILD_DIRDEPS} == "yes" 586 587# the rest is done repeatedly for every Makefile.depend we read. 588# if we are anything but the original dir we care only about the 589# machine type we were included for.. 590 591.if ${DEP_RELDIR} == "." 592_this_dir := ${SRCTOP} 593.else 594_this_dir := ${SRCTOP}/${DEP_RELDIR} 595.endif 596 597# on rare occasions, there can be a need for extra help 598_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 599.-include <${_dep_hack}> 600.-include <${_dep_hack:R}.options> 601 602.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 603# this should be all 604_machines := ${DEP_MACHINE} 605.else 606# this is the machine list we actually use below 607_machines := ${_only_machines} 608 609.if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == "" 610# we need to build this guy's dependencies for host as well. 611.if ${DEP_MACHINE:Nhost*} == "" 612_machines += ${DEP_MACHINE} 613.else 614_machines += host 615.endif 616.endif 617 618_machines := ${_machines:O:u} 619.endif 620 621.if ${TARGET_SPEC_VARS:[#]} > 1 622# we need to tweak _machines 623_dm := ${DEP_MACHINE} 624# apply the same filtering that we do when qualifying DIRDEPS. 625# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 626# Again we expect that any already qualified machines are fully qualified. 627_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 628DEP_MACHINE := ${_dm} 629_machines := ${_machines:O:u} 630.endif 631 632# reset each time through 633_build_dirs = 634 635.if ${DEP_RELDIR} == ${_DEP_RELDIR} 636# pickup other machines for this dir if necessary 637_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 638.endif 639 640.if ${_debug_reldir} 641.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 642.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 643.endif 644 645.if !empty(DIRDEPS) 646# these we reset each time through as they can depend on DEP_MACHINE 647DEP_DIRDEPS_FILTER = \ 648 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 649 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 650 ${DIRDEPS_FILTER:U} 651.if empty(DEP_DIRDEPS_FILTER) 652# something harmless 653DEP_DIRDEPS_FILTER = U 654.endif 655 656# this is what we start with 657__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 658 659# some entries may be qualified with .<machine> 660# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 661# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 662__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 663__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 664 665.if ${DEP_RELDIR} == ${_DEP_RELDIR} 666# if it was called out - we likely need it. 667__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \ 668 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@} 669__qual_depdirs += ${__hostdpadd} 670.endif 671 672.if ${_debug_reldir} 673.info DEP_DIRDEPS_FILTER=${DEP_DIRDEPS_FILTER:ts:} 674.info depdirs=${__depdirs} 675.info qualified=${__qual_depdirs} 676.info unqualified=${__unqual_depdirs} 677.endif 678 679# _build_dirs is what we will feed to _DIRDEP_USE 680_build_dirs += \ 681 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 682 ${__qual_depdirs:N*.host} \ 683 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 684 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 685 686# qualify everything now 687_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 688 689.endif # empty DIRDEPS 690 691_build_all_dirs += ${_build_dirs} ${_build_xtra_dirs} 692_build_all_dirs := ${_build_all_dirs:O:u} 693 694# Normally if doing make -V something, 695# we do not want to waste time chasing DIRDEPS 696# but if we want to count the number of Makefile.depend* read, we do. 697.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 698.if !empty(_build_all_dirs) 699.if ${BUILD_DIRDEPS_CACHE} == "yes" 700x!= echo; { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; } >&3 701# guard against _new_dirdeps being too big for a single command line 702_new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@} 703.export _build_xtra_dirs _new_dirdeps 704.if !empty(DEP_EXPORT_VARS) 705# Discouraged, but there are always exceptions. 706# Handle it here rather than explain how. 707x!= echo; { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3 708.endif 709.else 710# this makes it all happen 711dirdeps: ${_build_all_dirs} 712.endif 713${_build_all_dirs}: _DIRDEP_USE 714 715.if ${_debug_reldir} 716.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 717.endif 718 719.if !empty(DEP_EXPORT_VARS) 720.export ${DEP_EXPORT_VARS} 721DEP_EXPORT_VARS= 722.endif 723 724# this builds the dependency graph 725.for m in ${_machines} 726.if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs) 727x!= echo; { echo; echo 'DIRDEPS.${_this_dir}.$m = \'; } >&3 728_cache_deps = 729.endif 730# it would be nice to do :N${.TARGET} 731.if !empty(__qual_depdirs) 732.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 733.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 734.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 735.endif 736.if ${BUILD_DIRDEPS_CACHE} == "yes" 737_cache_deps += ${_build_dirs:M*.$q} 738.else 739${_this_dir}.$m: ${_build_dirs:M*.$q} 740.endif 741.endfor 742.endif 743.if ${_debug_reldir} 744.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 745.endif 746.if ${BUILD_DIRDEPS_CACHE} == "yes" 747.if !empty(_build_dirs) 748_cache_deps += ${_build_dirs:M*.$m:N${_this_dir}.$m} 749.if !empty(_cache_deps) 750.export _cache_deps 751x!= echo; for x in $$_cache_deps; do echo " $$x \\"; done >&3 752.endif 753# anything in _build_xtra_dirs is hooked to dirdeps: only 754x!= echo; { echo; echo '${_this_dir}.$m: $${DIRDEPS.${_this_dir}.$m}'; \ 755 echo; echo 'dirdeps: ${_this_dir}.$m \'; \ 756 for x in $$_build_xtra_dirs; do echo " $$x \\"; done; \ 757 echo; for x in $$_new_dirdeps; do echo "$$x: _DIRDEP_USE"; done; } >&3 758.endif 759.else 760${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 761.endif 762.endfor 763 764.endif 765 766# Now find more dependencies - and recurse. 767.for d in ${_build_all_dirs} 768.if !target(_dirdeps_checked.$d) 769# once only 770_dirdeps_checked.$d: 771.if ${_debug_search} 772.info checking $d 773.endif 774# Note: _build_all_dirs is fully qualifed so d:R is always the directory 775.if exists(${d:R}) 776# we pass _DEP_TARGET_SPEC to tell the next step what we want 777_DEP_TARGET_SPEC := ${d:E} 778# some makefiles may still look at this 779_DEP_MACHINE := ${d:E:C/,.*//} 780# set these too in case Makefile.depend* uses them 781.if ${TARGET_SPEC_VARS:[#]} > 1 782_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 783.for i in ${_tspec_x} 784DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 785.endfor 786.else 787DEP_MACHINE := ${_DEP_MACHINE} 788.endif 789# Warning: there is an assumption here that MACHINE is always 790# the first entry in TARGET_SPEC_VARS. 791# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 792_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]} 793.if !empty(_m) 794# M_dep_qual_fixes isn't geared to Makefile.depend 795_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 796.if ${_debug_search} 797.info Looking for ${_qm} 798.endif 799# set this "just in case" 800# we can skip :tA since we computed the path above 801DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 802# and reset this 803DIRDEPS = 804.if ${_debug_reldir} && ${_qm} != ${_m} 805.info loading ${_m} for ${d:E} 806.endif 807.include <${_m}> 808.else 809.-include <local.dirdeps-missing.mk> 810.endif 811.endif 812.endif 813.endfor 814 815.endif # -V 816.endif # BUILD_DIRDEPS 817 818.elif ${.MAKE.LEVEL} > 42 819.error You should have stopped recursing by now. 820.else 821# we are building something 822DEP_RELDIR := ${RELDIR} 823_DEP_RELDIR := ${RELDIR} 824# Since we are/should be included by .MAKE.DEPENDFILE 825# This is a final opportunity to add/hook global rules. 826.-include <local.dirdeps-build.mk> 827 828# skip _reldir_{finish,failed} if not included from Makefile.depend* 829# or not in meta mode 830.if !defined(WITHOUT_META_STATS) && ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" && ${.MAKE.MODE:Mmeta} != "" 831 832meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 833 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 834 835.if !target(_reldir_finish) 836.END: _reldir_finish 837_reldir_finish: .NOMETA 838 @echo "${TRACER}Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 839.endif 840 841.if !target(_reldir_failed) 842.ERROR: _reldir_failed 843_reldir_failed: .NOMETA 844 @echo "${TRACER}Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 845.endif 846 847.endif 848 849# pickup local dependencies 850.if ${MAKE_VERSION} < 20160220 851.-include <.depend> 852.else 853.dinclude <.depend> 854.endif 855.endif 856 857# bootstrapping new dependencies made easy? 858.if !target(bootstrap-empty) 859.if !target(bootstrap) && (make(bootstrap) || \ 860 make(bootstrap-this) || \ 861 make(bootstrap-recurse) || \ 862 make(bootstrap-empty)) 863 864# if we are bootstrapping create the default 865_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 866 867.if exists(${_want}) 868# stop here 869${.TARGETS:Mboot*}: 870.elif !make(bootstrap-empty) 871# find a Makefile.depend to use as _src 872_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 873.if empty(_src) 874.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 875.endif 876 877_src?= ${.MAKE.DEPENDFILE} 878 879.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 880 881# just create Makefile.depend* for this dir 882bootstrap-this: .NOTMAIN 883 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 884 echo You need to build ${RELDIR} to correctly populate it. 885.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 886 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T}) 887.else 888 cp ${.CURDIR}/${_src:T} ${_want} 889.endif 890 891# create Makefile.depend* for this dir and its dependencies 892bootstrap: bootstrap-recurse 893bootstrap-recurse: bootstrap-this 894 895_mf := ${.PARSEFILE} 896bootstrap-recurse: .NOTMAIN .MAKE 897 @cd ${SRCTOP} && \ 898 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 899 test -d $$d || d=$${d%.*}; \ 900 test -d $$d || continue; \ 901 echo "Checking $$d for bootstrap ..."; \ 902 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 903 done 904 905.endif 906 907# create an empty Makefile.depend* to get the ball rolling. 908bootstrap-empty: .NOTMAIN .NOMETA 909 @echo Creating empty ${RELDIR}/${_want:T}; \ 910 echo You need to build ${RELDIR} to correctly populate it. 911 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 912 913.endif 914.endif 915