1# $FreeBSD$ 2# $Id: dirdeps.mk,v 1.130 2020/11/02 00:34:30 sjg Exp $ 3 4# Copyright (c) 2010-2020, 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# TARGET_SPEC_VARS 71# The default value is just MACHINE, and for most environments 72# this is sufficient. The _DIRDEP_USE target actually sets 73# both MACHINE and TARGET_SPEC to the suffix of the current 74# target so that in the general case TARGET_SPEC can be ignored. 75# 76# If more than MACHINE is needed then sys.mk needs to decompose 77# TARGET_SPEC and set the relevant variables accordingly. 78# It is important that MACHINE be included in and actually be 79# the first member of TARGET_SPEC_VARS. This allows other 80# variables to be considered optional, and some of the treatment 81# below relies on MACHINE being the first entry. 82# Note: TARGET_SPEC cannot contain any '.'s so the target 83# triple used by compiler folk won't work (directly anyway). 84# 85# For example: 86# 87# # Always list MACHINE first, 88# # other variables might be optional. 89# TARGET_SPEC_VARS = MACHINE TARGET_OS 90# .if ${TARGET_SPEC:Uno:M*,*} != "" 91# _tspec := ${TARGET_SPEC:S/,/ /g} 92# MACHINE := ${_tspec:[1]} 93# TARGET_OS := ${_tspec:[2]} 94# # etc. 95# # We need to stop that TARGET_SPEC affecting any submakes 96# # and deal with MACHINE=${TARGET_SPEC} in the environment. 97# TARGET_SPEC = 98# # export but do not track 99# .export-env TARGET_SPEC 100# .export ${TARGET_SPEC_VARS} 101# .for v in ${TARGET_SPEC_VARS:O:u} 102# .if empty($v) 103# .undef $v 104# .endif 105# .endfor 106# .endif 107# # make sure we know what TARGET_SPEC is 108# # as we may need it to find Makefile.depend* 109# TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 110# 111# The following variables can influence the initial DIRDEPS 112# computation with regard to the TARGET_SPECs that will be 113# built. 114# Most should also be considered by init.mk 115# 116# ONLY_TARGET_SPEC_LIST 117# Defines a list of TARGET_SPECs for which the current 118# directory can be built. 119# If ALL_MACHINES is defined, we build for all the 120# TARGET_SPECs listed. 121# 122# ONLY_MACHINE_LIST 123# As for ONLY_TARGET_SPEC_LIST but only specifies 124# MACHINEs. 125# 126# NOT_TARGET_SPEC_LIST 127# A list of TARGET_SPECs for which the current 128# directory should not be built. 129# 130# NOT_MACHINE_LIST 131# A list of MACHINEs the current directory should not be 132# built for. 133# 134# _build_xtra_dirs 135# local.dirdeps.mk can add targets to this variable. 136# They will be hooked into the build, but independent of 137# any other DIRDEP. 138# 139# This allows for adding TESTS to the build, such that the build 140# if any test fails, but without the risk of introducing 141# circular dependencies. 142 143now_utc ?= ${%s:L:gmtime} 144.if !defined(start_utc) 145start_utc := ${now_utc} 146.endif 147 148.if !target(bootstrap) && (make(bootstrap) || \ 149 make(bootstrap-this) || \ 150 make(bootstrap-recurse) || \ 151 make(bootstrap-empty)) 152# disable most of below 153.MAKE.LEVEL = 1 154.endif 155 156# touch this at your peril 157_DIRDEP_USE_LEVEL?= 0 158.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 159# only the first instance is interested in all this 160 161.if !target(_DIRDEP_USE) 162 163# do some setup we only need once 164_CURDIR ?= ${.CURDIR} 165_OBJDIR ?= ${.OBJDIR} 166 167.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 168# This little trick let's us do 169# 170# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 171# 172all: 173${.TARGETS:Nall}: all 174DIRDEPS := ${.TARGETS:M*[/.]*} 175# so that -DNO_DIRDEPS works 176DEP_RELDIR := ${DIRDEPS:[1]:R} 177# this will become DEP_MACHINE below 178TARGET_MACHINE := ${DIRDEPS:[1]:E:C/,.*//} 179.if ${TARGET_MACHINE:N*/*} == "" 180TARGET_MACHINE := ${MACHINE} 181.endif 182# disable DIRDEPS_CACHE as it does not like this trick 183MK_DIRDEPS_CACHE = no 184.endif 185 186# make sure we get the behavior we expect 187.MAKE.SAVE_DOLLARS = no 188 189# make sure these are empty to start with 190_DEP_TARGET_SPEC = 191 192# If TARGET_SPEC_VARS is other than just MACHINE 193# it should be set by sys.mk or similar by now. 194# TARGET_SPEC must not contain any '.'s. 195TARGET_SPEC_VARS ?= MACHINE 196# this is what we started with 197TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 198# this is what we mostly use below 199DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 200# make sure we have defaults 201.for v in ${TARGET_SPEC_VARS} 202DEP_$v ?= ${$v} 203.endfor 204 205.if ${TARGET_SPEC_VARS:[#]} > 1 206# Ok, this gets more complex (putting it mildly). 207# In order to stay sane, we need to ensure that all the build_dirs 208# we compute below are fully qualified wrt DEP_TARGET_SPEC. 209# The makefiles may only partially specify (eg. MACHINE only), 210# so we need to construct a set of modifiers to fill in the gaps. 211.if ${MAKE_VERSION} >= 20170130 212_tspec_x := ${TARGET_SPEC_VARS:range} 213.else 214# do it the hard way 215_tspec_x := ${TARGET_SPEC_VARS:[#]:@x@i=1;while [ $$i -le $x ]; do echo $$i; i=$$((i + 1)); done;@:sh} 216.endif 217# this handles unqualified entries 218M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 219# there needs to be at least one item missing for these to make sense 220.for i in ${_tspec_x:[2..-1]} 221_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 222_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 223M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 224.endfor 225TARGET_SPEC_VARSr := ${TARGET_SPEC_VARS:[-1..1]} 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_build_xtra_dirs = 311 312# the first time we are included the _DIRDEP_USE target will not be defined 313# we can use this as a clue to do initialization and other one time things. 314.if !target(_DIRDEP_USE) 315# make sure this target exists 316dirdeps: beforedirdeps .WAIT 317beforedirdeps: 318 319# We normally expect to be included by Makefile.depend.* 320# which sets the DEP_* macros below. 321DEP_RELDIR ?= ${RELDIR} 322 323# this can cause lots of output! 324# set to a set of glob expressions that might match RELDIR 325DEBUG_DIRDEPS ?= no 326 327# remember the initial value of DEP_RELDIR - we test for it below. 328_DEP_RELDIR := ${DEP_RELDIR} 329 330.endif 331 332# DIRDEPS_CACHE can be very handy for debugging. 333# Also if repeatedly building the same target, 334# we can avoid the overhead of re-computing the tree dependencies. 335MK_DIRDEPS_CACHE ?= no 336BUILD_DIRDEPS_CACHE ?= no 337BUILD_DIRDEPS ?= yes 338 339.if ${MK_DIRDEPS_CACHE} == "yes" 340# this is where we will cache all our work 341DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${_TARGETS:U${.TARGETS}:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 342.endif 343 344.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 345_debug_reldir = 1 346.else 347_debug_reldir = 0 348.endif 349.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 350_debug_search = 1 351.else 352_debug_search = 0 353.endif 354 355# pickup customizations 356# as below you can use !target(_DIRDEP_USE) to protect things 357# which should only be done once. 358.-include <local.dirdeps.mk> 359 360.if !target(_DIRDEP_USE) 361# things we skip for host tools 362SKIP_HOSTDIR ?= 363 364NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 365 366# things we always skip 367# SKIP_DIRDEPS allows for adding entries on command line. 368SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 369SKIP_DIR.host += ${SKIP_HOSTDIR} 370 371DEP_SKIP_DIR = ${SKIP_DIR} \ 372 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 373 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 374 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 375 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 376 377 378NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 379 380.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 381NO_DIRDEPS = 382.elif defined(WITHOUT_DIRDEPS_BELOW) 383NO_DIRDEPS_BELOW = 384.endif 385 386.if defined(NO_DIRDEPS) 387# confine ourselves to the original dir and below. 388DIRDEPS_FILTER += M${_DEP_RELDIR}* 389.elif defined(NO_DIRDEPS_BELOW) 390DIRDEPS_FILTER += M${_DEP_RELDIR} 391.endif 392 393# this is what we run below 394DIRDEP_MAKE ?= ${.MAKE} 395DIRDEP_DIR ?= ${.TARGET:R} 396 397# if you want us to report load averages during build 398# DIRDEP_USE_PRELUDE += ${DIRDEP_LOADAVG_REPORT}; 399 400DIRDEP_LOADAVG_CMD ?= ${UPTIME:Uuptime} | sed 's,.*\(load\),\1,' 401DIRDEP_LOADAVG_LAST = 0 402# yes the expression here is a bit complicated, 403# the trick is to only eval ${DIRDEP_LOADAVG_LAST::=${now_utc}} 404# when we want to report. 405DIRDEP_LOADAVG_REPORT = \ 406 test -z "${"${expr ${now_utc} - ${DIRDEP_LOADAVG_INTEVAL:U60} - ${DIRDEP_LOADAVG_LAST}:L:sh:N-*}":?yes${DIRDEP_LOADAVG_LAST::=${now_utc}}:}" || \ 407 echo "${TRACER}`${DIRDEP_LOADAVG_CMD}`" 408 409# we suppress SUBDIR when visiting the leaves 410# we assume sys.mk will set MACHINE_ARCH 411# you can add extras to DIRDEP_USE_ENV 412# if there is no makefile in the target directory, we skip it. 413_DIRDEP_USE: .USE .MAKE 414 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 415 test -s ${.TARGET:R}/$$m || continue; \ 416 echo "${TRACER}Checking ${.TARGET:S,${SRCTOP}/,,} for ${.TARGET:E} ..."; \ 417 ${DIRDEP_USE_PRELUDE} \ 418 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 419 TARGET_SPEC=${.TARGET:E} \ 420 MACHINE=${.TARGET:E} \ 421 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \ 422 break; \ 423 done 424 425.ifdef ALL_MACHINES 426# this is how you limit it to only the machines we have been built for 427# previously. 428.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 429.if !empty(ALL_MACHINE_LIST) 430# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 431_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 432.else 433_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 434.endif 435_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 436.else 437_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 438.endif 439 440.if empty(_only_machines) 441# we must be boot-strapping 442_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 443.endif 444 445.else # ! ALL_MACHINES 446# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 447# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 448# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 449# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 450_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 451.if empty(_only_machines) 452_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 453.endif 454.endif 455 456.if !empty(NOT_MACHINE_LIST) 457_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 458.endif 459.if !empty(NOT_TARGET_SPEC_LIST) 460# we must first qualify 461_dm := ${DEP_MACHINE} 462_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 463DEP_MACHINE := ${_dm} 464_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 465.endif 466# clean up 467_only_machines := ${_only_machines:O:u} 468 469# make sure we have a starting place? 470DIRDEPS ?= ${RELDIR} 471.endif # target 472 473.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 474.if ${MK_DIRDEPS_CACHE} == "yes" 475 476# just ensure this exists 477build-dirdeps: 478 479M_oneperline = @x@\\${.newline} $$x@ 480 481.if ${BUILD_DIRDEPS_CACHE} == "no" 482.if !target(dirdeps-cached) 483# we do this via sub-make 484BUILD_DIRDEPS = no 485 486# ignore anything but these 487.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 488 489dirdeps: dirdeps-cached 490dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 491 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 492 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 493 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 494 495# leaf makefiles rarely work for building DIRDEPS_CACHE 496.if ${RELDIR} != "." 497BUILD_DIRDEPS_MAKEFILE ?= -f dirdeps.mk 498.endif 499 500# these should generally do 501BUILD_DIRDEPS_MAKEFILE ?= 502BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 503 504.if ${DIRDEPS_CACHE} != ${STATIC_DIRDEPS_CACHE:Uno} && ${DIRDEPS_CACHE:M${SRCTOP}/*} == "" 505# export this for dirdeps-cache-update.mk 506DYNAMIC_DIRDEPS_CACHE := ${DIRDEPS_CACHE} 507.export DYNAMIC_DIRDEPS_CACHE 508# we need the .meta file to ensure we update if 509# any of the Makefile.depend* changed. 510# We do not want to compare the command line though. 511${DIRDEPS_CACHE}: .META .NOMETA_CMP 512 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 513 echo 'BUILD_DIRDEPS=no'; echo; \ 514 echo '.include <dirdeps.mk>'; echo; \ 515 } > ${.TARGET}.new 516 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 517 DIRDEPS="${DIRDEPS}" \ 518 TARGET_SPEC=${TARGET_SPEC} \ 519 MAKEFLAGS= ${DIRDEP_CACHE_MAKE:U${.MAKE}} -C ${_CURDIR} \ 520 ${BUILD_DIRDEPS_MAKEFILE} \ 521 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 522 .MAKE.DEPENDFILE=.none \ 523 ${"${DEBUG_DIRDEPS:Nno}":?DEBUG_DIRDEPS='${DEBUG_DIRDEPS}':} \ 524 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 525 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \ 526 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g;s,_{,$${,g' >> ${.TARGET}.new && \ 527 mv ${.TARGET}.new ${.TARGET} 528 529.endif 530.endif 531.elif !target(_count_dirdeps) 532# we want to capture the dirdeps count in the cache 533.END: _count_dirdeps 534_count_dirdeps: .NOMETA 535 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS}'; } >&3 536 537.endif 538.elif !make(dirdeps) && !target(_count_dirdeps) 539beforedirdeps: _count_dirdeps 540_count_dirdeps: .NOMETA 541 @echo "${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}`" 542 543.endif 544.endif 545 546.if ${BUILD_DIRDEPS} == "yes" 547 548# the rest is done repeatedly for every Makefile.depend we read. 549# if we are anything but the original dir we care only about the 550# machine type we were included for.. 551 552.if ${DEP_RELDIR} == "." 553_this_dir := ${SRCTOP} 554.else 555_this_dir := ${SRCTOP}/${DEP_RELDIR} 556.endif 557 558# on rare occasions, there can be a need for extra help 559_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 560.-include <${_dep_hack}> 561.-include <${_dep_hack:R}.options> 562 563.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 564# this should be all 565_machines := ${DEP_MACHINE} 566.else 567# this is the machine list we actually use below 568_machines := ${_only_machines} 569 570.if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == "" 571# we need to build this guy's dependencies for host as well. 572.if ${DEP_MACHINE:Nhost*} == "" 573_machines += ${DEP_MACHINE} 574.else 575_machines += host 576.endif 577.endif 578 579_machines := ${_machines:O:u} 580.endif 581 582.if ${TARGET_SPEC_VARS:[#]} > 1 583# we need to tweak _machines 584_dm := ${DEP_MACHINE} 585# apply the same filtering that we do when qualifying DIRDEPS. 586# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 587# Again we expect that any already qualified machines are fully qualified. 588_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 589DEP_MACHINE := ${_dm} 590_machines := ${_machines:O:u} 591.endif 592 593# reset each time through 594_build_dirs = 595 596.if ${DEP_RELDIR} == ${_DEP_RELDIR} 597# pickup other machines for this dir if necessary 598_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 599.endif 600 601.if ${_debug_reldir} 602.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 603.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 604.endif 605 606.if !empty(DIRDEPS) 607# these we reset each time through as they can depend on DEP_MACHINE 608DEP_DIRDEPS_FILTER = \ 609 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 610 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 611 ${DIRDEPS_FILTER:U} 612.if empty(DEP_DIRDEPS_FILTER) 613# something harmless 614DEP_DIRDEPS_FILTER = U 615.endif 616 617# this is what we start with 618__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 619 620# some entries may be qualified with .<machine> 621# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 622# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 623__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 624__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 625 626.if ${DEP_RELDIR} == ${_DEP_RELDIR} 627# if it was called out - we likely need it. 628__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \ 629 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@} 630__qual_depdirs += ${__hostdpadd} 631.endif 632 633.if ${_debug_reldir} 634.info DEP_DIRDEPS_FILTER=${DEP_DIRDEPS_FILTER:ts:} 635.info depdirs=${__depdirs} 636.info qualified=${__qual_depdirs} 637.info unqualified=${__unqual_depdirs} 638.endif 639 640# _build_dirs is what we will feed to _DIRDEP_USE 641_build_dirs += \ 642 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 643 ${__qual_depdirs:N*.host} \ 644 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 645 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 646 647# qualify everything now 648_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 649 650.endif # empty DIRDEPS 651 652_build_all_dirs += ${_build_dirs} ${_build_xtra_dirs} 653_build_all_dirs := ${_build_all_dirs:O:u} 654 655# Normally if doing make -V something, 656# we do not want to waste time chasing DIRDEPS 657# but if we want to count the number of Makefile.depend* read, we do. 658.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 659.if !empty(_build_all_dirs) 660.if ${BUILD_DIRDEPS_CACHE} == "yes" 661x!= echo; { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; } >&3 662# guard against _new_dirdeps being too big for a single command line 663_new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@} 664.export _build_xtra_dirs _new_dirdeps 665.if !empty(DEP_EXPORT_VARS) 666# Discouraged, but there are always exceptions. 667# Handle it here rather than explain how. 668x!= echo; { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3 669.endif 670.else 671# this makes it all happen 672dirdeps: ${_build_all_dirs} 673.endif 674${_build_all_dirs}: _DIRDEP_USE 675 676.if ${_debug_reldir} 677.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 678.endif 679 680.if !empty(DEP_EXPORT_VARS) 681.export ${DEP_EXPORT_VARS} 682DEP_EXPORT_VARS= 683.endif 684 685# this builds the dependency graph 686.for m in ${_machines} 687.if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs) 688x!= echo; { echo; echo 'DIRDEPS.${_this_dir}.$m = \'; } >&3 689_cache_deps = 690.endif 691# it would be nice to do :N${.TARGET} 692.if !empty(__qual_depdirs) 693.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 694.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 695.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 696.endif 697.if ${BUILD_DIRDEPS_CACHE} == "yes" 698_cache_deps += ${_build_dirs:M*.$q} 699.else 700${_this_dir}.$m: ${_build_dirs:M*.$q} 701.endif 702.endfor 703.endif 704.if ${_debug_reldir} 705.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 706.endif 707.if ${BUILD_DIRDEPS_CACHE} == "yes" 708.if !empty(_build_dirs) 709_cache_deps += ${_build_dirs:M*.$m:N${_this_dir}.$m} 710.if !empty(_cache_deps) 711.export _cache_deps 712x!= echo; for x in $$_cache_deps; do echo " $$x \\"; done >&3 713.endif 714x!= echo; { echo; echo '${_this_dir}.$m: $${DIRDEPS.${_this_dir}.$m}'; \ 715 echo; echo 'dirdeps: ${_this_dir}.$m \'; \ 716 for x in $$_build_xtra_dirs; do echo " $$x \\"; done; \ 717 echo; for x in $$_new_dirdeps; do echo "$$x: _DIRDEP_USE"; done; } >&3 718.endif 719.else 720${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 721.endif 722.endfor 723 724.endif 725 726# Now find more dependencies - and recurse. 727.for d in ${_build_all_dirs} 728.if !target(_dirdeps_checked.$d) 729# once only 730_dirdeps_checked.$d: 731.if ${_debug_search} 732.info checking $d 733.endif 734# Note: _build_all_dirs is fully qualifed so d:R is always the directory 735.if exists(${d:R}) 736# we pass _DEP_TARGET_SPEC to tell the next step what we want 737_DEP_TARGET_SPEC := ${d:E} 738# some makefiles may still look at this 739_DEP_MACHINE := ${d:E:C/,.*//} 740# set these too in case Makefile.depend* uses them 741.if ${TARGET_SPEC_VARS:[#]} > 1 742_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 743.for i in ${_tspec_x} 744DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 745.endfor 746.else 747DEP_MACHINE := ${_DEP_MACHINE} 748.endif 749# Warning: there is an assumption here that MACHINE is always 750# the first entry in TARGET_SPEC_VARS. 751# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 752_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 753.if !empty(_m) 754# M_dep_qual_fixes isn't geared to Makefile.depend 755_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 756.if ${_debug_search} 757.info Looking for ${_qm} 758.endif 759# set this "just in case" 760# we can skip :tA since we computed the path above 761DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 762# and reset this 763DIRDEPS = 764.if ${_debug_reldir} && ${_qm} != ${_m} 765.info loading ${_m} for ${d:E} 766.endif 767.include <${_m}> 768.else 769.-include <local.dirdeps-missing.mk> 770.endif 771.endif 772.endif 773.endfor 774 775.endif # -V 776.endif # BUILD_DIRDEPS 777 778.elif ${.MAKE.LEVEL} > 42 779.error You should have stopped recursing by now. 780.else 781# we are building something 782DEP_RELDIR := ${RELDIR} 783_DEP_RELDIR := ${RELDIR} 784# Since we are/should be included by .MAKE.DEPENDFILE 785# This is a final opportunity to add/hook global rules. 786.-include <local.dirdeps-build.mk> 787 788# skip _reldir_{finish,failed} if not included from Makefile.depend* 789# or not in meta mode 790.if !defined(WITHOUT_META_STATS) && ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" && ${.MAKE.MODE:Mmeta} != "" 791 792meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 793 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 794 795.if !target(_reldir_finish) 796.END: _reldir_finish 797_reldir_finish: .NOMETA 798 @echo "${TRACER}Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 799.endif 800 801.if !target(_reldir_failed) 802.ERROR: _reldir_failed 803_reldir_failed: .NOMETA 804 @echo "${TRACER}Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 805.endif 806 807.endif 808 809# pickup local dependencies 810.if ${MAKE_VERSION} < 20160220 811.-include <.depend> 812.else 813.dinclude <.depend> 814.endif 815.endif 816 817# bootstrapping new dependencies made easy? 818.if !target(bootstrap) && (make(bootstrap) || \ 819 make(bootstrap-this) || \ 820 make(bootstrap-recurse) || \ 821 make(bootstrap-empty)) 822 823# if we are bootstrapping create the default 824_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 825 826.if exists(${_want}) 827# stop here 828${.TARGETS:Mboot*}: 829.elif !make(bootstrap-empty) 830# find a Makefile.depend to use as _src 831_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 832.if empty(_src) 833.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 834.endif 835 836_src?= ${.MAKE.DEPENDFILE} 837 838.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 839 840# just create Makefile.depend* for this dir 841bootstrap-this: .NOTMAIN 842 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 843 echo You need to build ${RELDIR} to correctly populate it. 844.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 845 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T}) 846.else 847 cp ${.CURDIR}/${_src:T} ${_want} 848.endif 849 850# create Makefile.depend* for this dir and its dependencies 851bootstrap: bootstrap-recurse 852bootstrap-recurse: bootstrap-this 853 854_mf := ${.PARSEFILE} 855bootstrap-recurse: .NOTMAIN .MAKE 856 @cd ${SRCTOP} && \ 857 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 858 test -d $$d || d=$${d%.*}; \ 859 test -d $$d || continue; \ 860 echo "Checking $$d for bootstrap ..."; \ 861 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 862 done 863 864.endif 865 866# create an empty Makefile.depend* to get the ball rolling. 867bootstrap-empty: .NOTMAIN .NOMETA 868 @echo Creating empty ${RELDIR}/${_want:T}; \ 869 echo You need to build ${RELDIR} to correctly populate it. 870 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 871 872.endif 873