1# $Id: dirdeps.mk,v 1.125 2020/08/26 21:49:45 sjg Exp $ 2 3# Copyright (c) 2010-2020, Simon J. Gerraty 4# Copyright (c) 2010-2018, Juniper Networks, Inc. 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28# Much of the complexity here is for supporting cross-building. 29# If a tree does not support that, simply using plain Makefile.depend 30# should provide sufficient clue. 31# Otherwise the recommendation is to use Makefile.depend.${MACHINE} 32# as expected below. 33 34# Note: this file gets multiply included. 35# This is what we do with DIRDEPS 36 37# DIRDEPS: 38# This is a list of directories - relative to SRCTOP, it is 39# normally only of interest to .MAKE.LEVEL 0. 40# In some cases the entry may be qualified with a .<machine> 41# or .<target_spec> suffix (see TARGET_SPEC_VARS below), 42# for example to force building something for the pseudo 43# machines "host" or "common" regardless of current ${MACHINE}. 44# 45# All unqualified entries end up being qualified with .${TARGET_SPEC} 46# and partially qualified (if TARGET_SPEC_VARS has multiple 47# entries) are also expanded to a full .<target_spec>. 48# The _DIRDEP_USE target uses the suffix to set TARGET_SPEC 49# correctly when visiting each entry. 50# 51# The fully qualified directory entries are used to construct a 52# dependency graph that will drive the build later. 53# 54# Also, for each fully qualified directory target, we will search 55# using ${.MAKE.DEPENDFILE_PREFERENCE} to find additional 56# dependencies. We use Makefile.depend (default value for 57# .MAKE.DEPENDFILE_PREFIX) to refer to these makefiles to 58# distinguish them from others. 59# 60# Before each Makefile.depend file is read, we set 61# DEP_RELDIR to be the RELDIR (path relative to SRCTOP) for 62# its directory, and DEP_MACHINE etc according to the .<target_spec> 63# represented by the suffix of the corresponding target. 64# 65# Since each Makefile.depend file includes dirdeps.mk, this 66# processing is recursive and results in .MAKE.LEVEL 0 learning the 67# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 68# 69# 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.elif ${TARGET_SPEC_VARS:[#]} > 10 213# seriously? better have jot(1) or equivalent to produce suitable sequence 214_tspec_x := ${${JOT:Ujot} ${TARGET_SPEC_VARS:[#]}:L:sh} 215.else 216# we can provide the sequence ourselves 217_tspec_x := ${1 2 3 4 5 6 7 8 9 10:L:[1..${TARGET_SPEC_VARS:[#]}]} 218.endif 219# this handles unqualified entries 220M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 221# there needs to be at least one item missing for these to make sense 222.for i in ${_tspec_x:[2..-1]} 223_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 224_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 225M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 226.endfor 227TARGET_SPEC_VARSr := ${TARGET_SPEC_VARS:[-1..1]} 228.else 229# A harmless? default. 230M_dep_qual_fixes = U 231.endif 232 233.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 234# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 235# you really want this set by sys.mk or similar 236.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 237.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 238.if ${TARGET_SPEC} != ${MACHINE} 239.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 240.endif 241.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 242.endif 243.endif 244 245_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 246_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 247 248# for machine specific dependfiles we require ${MACHINE} to be at the end 249# also for the sake of sanity we require a common prefix 250.if !defined(.MAKE.DEPENDFILE_PREFIX) 251# knowing .MAKE.DEPENDFILE_PREFIX helps 252.if !empty(_machine_dependfiles) 253.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 254.else 255.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 256.endif 257.endif 258 259 260# this is how we identify non-machine specific dependfiles 261N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 262 263.endif # !target(_DIRDEP_USE) 264 265# First off, we want to know what ${MACHINE} to build for. 266# This can be complicated if we are using a mixture of ${MACHINE} specific 267# and non-specific Makefile.depend* 268 269# if we were included recursively _DEP_TARGET_SPEC should be valid. 270.if empty(_DEP_TARGET_SPEC) 271# we may or may not have included a dependfile yet 272.if defined(.INCLUDEDFROMFILE) 273_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 274.else 275_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 276.endif 277.if ${_debug_reldir:U0} 278.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 279.endif 280 281.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 282# this is all we have to work with 283DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 284_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 285.else 286_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 287.endif 288.if !empty(_last_dependfile) 289# record that we've read dependfile for this 290_dirdeps_checked.${_CURDIR}.${TARGET_SPEC}: 291.endif 292.endif 293 294# by now _DEP_TARGET_SPEC should be set, parse it. 295.if ${TARGET_SPEC_VARS:[#]} > 1 296# we need to parse DEP_MACHINE may or may not contain more info 297_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 298.for i in ${_tspec_x} 299DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 300.endfor 301.for v in ${TARGET_SPEC_VARS:O:u} 302.if empty(DEP_$v) 303.undef DEP_$v 304.endif 305.endfor 306.else 307DEP_MACHINE := ${_DEP_TARGET_SPEC} 308.endif 309 310# reset each time through 311_build_all_dirs = 312_build_xtra_dirs = 313 314# the first time we are included the _DIRDEP_USE target will not be defined 315# we can use this as a clue to do initialization and other one time things. 316.if !target(_DIRDEP_USE) 317# make sure this target exists 318dirdeps: beforedirdeps .WAIT 319beforedirdeps: 320 321# We normally expect to be included by Makefile.depend.* 322# which sets the DEP_* macros below. 323DEP_RELDIR ?= ${RELDIR} 324 325# this can cause lots of output! 326# set to a set of glob expressions that might match RELDIR 327DEBUG_DIRDEPS ?= no 328 329# remember the initial value of DEP_RELDIR - we test for it below. 330_DEP_RELDIR := ${DEP_RELDIR} 331 332.endif 333 334# DIRDEPS_CACHE can be very handy for debugging. 335# Also if repeatedly building the same target, 336# we can avoid the overhead of re-computing the tree dependencies. 337MK_DIRDEPS_CACHE ?= no 338BUILD_DIRDEPS_CACHE ?= no 339BUILD_DIRDEPS ?= yes 340 341.if ${MK_DIRDEPS_CACHE} == "yes" 342# this is where we will cache all our work 343DIRDEPS_CACHE ?= ${_OBJDIR:tA}/dirdeps.cache${_TARGETS:U${.TARGETS}:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 344.endif 345 346.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 347_debug_reldir = 1 348.else 349_debug_reldir = 0 350.endif 351.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 352_debug_search = 1 353.else 354_debug_search = 0 355.endif 356 357# pickup customizations 358# as below you can use !target(_DIRDEP_USE) to protect things 359# which should only be done once. 360.-include <local.dirdeps.mk> 361 362.if !target(_DIRDEP_USE) 363# things we skip for host tools 364SKIP_HOSTDIR ?= 365 366NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 367 368# things we always skip 369# SKIP_DIRDEPS allows for adding entries on command line. 370SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 371SKIP_DIR.host += ${SKIP_HOSTDIR} 372 373DEP_SKIP_DIR = ${SKIP_DIR} \ 374 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 375 ${TARGET_SPEC_VARS:@v@${SKIP_DIR.${DEP_$v}:U}@} \ 376 ${SKIP_DIRDEPS.${DEP_TARGET_SPEC}:U} \ 377 ${TARGET_SPEC_VARS:@v@${SKIP_DIRDEPS.${DEP_$v}:U}@} 378 379 380NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 381 382.if defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 383NO_DIRDEPS = 384.elif defined(WITHOUT_DIRDEPS_BELOW) 385NO_DIRDEPS_BELOW = 386.endif 387 388.if defined(NO_DIRDEPS) 389# confine ourselves to the original dir and below. 390DIRDEPS_FILTER += M${_DEP_RELDIR}* 391.elif defined(NO_DIRDEPS_BELOW) 392DIRDEPS_FILTER += M${_DEP_RELDIR} 393.endif 394 395# this is what we run below 396DIRDEP_MAKE ?= ${.MAKE} 397DIRDEP_DIR ?= ${.TARGET:R} 398 399# if you want us to report load averages during build 400# DIRDEP_USE_PRELUDE += ${DIRDEP_LOADAVG_REPORT}; 401 402DIRDEP_LOADAVG_CMD ?= ${UPTIME:Uuptime} | sed 's,.*\(load\),\1,' 403DIRDEP_LOADAVG_LAST = 0 404# yes the expression here is a bit complicated, 405# the trick is to only eval ${DIRDEP_LOADAVG_LAST::=${now_utc}} 406# when we want to report. 407DIRDEP_LOADAVG_REPORT = \ 408 test -z "${"${expr ${now_utc} - ${DIRDEP_LOADAVG_INTEVAL:U60} - ${DIRDEP_LOADAVG_LAST}:L:sh:N-*}":?yes${DIRDEP_LOADAVG_LAST::=${now_utc}}:}" || \ 409 echo "${TRACER}`${DIRDEP_LOADAVG_CMD}`" 410 411# we suppress SUBDIR when visiting the leaves 412# we assume sys.mk will set MACHINE_ARCH 413# you can add extras to DIRDEP_USE_ENV 414# if there is no makefile in the target directory, we skip it. 415_DIRDEP_USE: .USE .MAKE 416 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 417 test -s ${.TARGET:R}/$$m || continue; \ 418 echo "${TRACER}Checking ${.TARGET:S,${SRCTOP}/,,} for ${.TARGET:E} ..."; \ 419 ${DIRDEP_USE_PRELUDE} \ 420 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 421 TARGET_SPEC=${.TARGET:E} \ 422 MACHINE=${.TARGET:E} \ 423 ${DIRDEP_MAKE} -C ${DIRDEP_DIR} || exit 1; \ 424 break; \ 425 done 426 427.ifdef ALL_MACHINES 428# this is how you limit it to only the machines we have been built for 429# previously. 430.if empty(ONLY_TARGET_SPEC_LIST) && empty(ONLY_MACHINE_LIST) 431.if !empty(ALL_MACHINE_LIST) 432# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 433_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 434.else 435_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 436.endif 437_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 438.else 439_only_machines := ${ONLY_TARGET_SPEC_LIST:U} ${ONLY_MACHINE_LIST:U} 440.endif 441 442.if empty(_only_machines) 443# we must be boot-strapping 444_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 445.endif 446 447.else # ! ALL_MACHINES 448# if ONLY_TARGET_SPEC_LIST or ONLY_MACHINE_LIST is set, we are limited to that. 449# Note that ONLY_TARGET_SPEC_LIST should be fully qualified. 450# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 451# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 452_only_machines := ${ONLY_TARGET_SPEC_LIST:U:M${DEP_MACHINE},*} 453.if empty(_only_machines) 454_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 455.endif 456.endif 457 458.if !empty(NOT_MACHINE_LIST) 459_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 460.endif 461.if !empty(NOT_TARGET_SPEC_LIST) 462# we must first qualify 463_dm := ${DEP_MACHINE} 464_only_machines := ${_only_machines:M*,*} ${_only_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 465DEP_MACHINE := ${_dm} 466_only_machines := ${_only_machines:${NOT_TARGET_SPEC_LIST:${M_ListToSkip}}} 467.endif 468# clean up 469_only_machines := ${_only_machines:O:u} 470 471# make sure we have a starting place? 472DIRDEPS ?= ${RELDIR} 473.endif # target 474 475.if !defined(NO_DIRDEPS) && !defined(NO_DIRDEPS_BELOW) 476.if ${MK_DIRDEPS_CACHE} == "yes" 477 478# just ensure this exists 479build-dirdeps: 480 481M_oneperline = @x@\\${.newline} $$x@ 482 483.if ${BUILD_DIRDEPS_CACHE} == "no" 484.if !target(dirdeps-cached) 485# we do this via sub-make 486BUILD_DIRDEPS = no 487 488# ignore anything but these 489.MAKE.META.IGNORE_FILTER = M*/${.MAKE.DEPENDFILE_PREFIX}* 490 491dirdeps: dirdeps-cached 492dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 493 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 494 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 495 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 496 497# these should generally do 498BUILD_DIRDEPS_MAKEFILE ?= 499BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 500 501.if ${DIRDEPS_CACHE} != ${STATIC_DIRDEPS_CACHE:Uno} && ${DIRDEPS_CACHE:M${SRCTOP}/*} == "" 502# export this for dirdeps-cache-update.mk 503DYNAMIC_DIRDEPS_CACHE := ${DIRDEPS_CACHE} 504.export DYNAMIC_DIRDEPS_CACHE 505# we need the .meta file to ensure we update if 506# any of the Makefile.depend* changed. 507# We do not want to compare the command line though. 508${DIRDEPS_CACHE}: .META .NOMETA_CMP 509 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 510 echo 'BUILD_DIRDEPS=no'; echo; \ 511 echo '.include <dirdeps.mk>'; echo; \ 512 } > ${.TARGET}.new 513 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 514 DIRDEPS="${DIRDEPS}" \ 515 TARGET_SPEC=${TARGET_SPEC} \ 516 MAKEFLAGS= ${DIRDEP_CACHE_MAKE:U${.MAKE}} -C ${_CURDIR} \ 517 ${BUILD_DIRDEPS_MAKEFILE} \ 518 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 519 .MAKE.DEPENDFILE=.none \ 520 ${.MAKEFLAGS:tW:S,-D ,-D,g:tw:M*WITH*} \ 521 ${.MAKEFLAGS:tW:S,-d ,-d,g:tw:M-d*} \ 522 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g;s,_{,$${,g' >> ${.TARGET}.new && \ 523 mv ${.TARGET}.new ${.TARGET} 524 525.endif 526.endif 527.elif !target(_count_dirdeps) 528# we want to capture the dirdeps count in the cache 529.END: _count_dirdeps 530_count_dirdeps: .NOMETA 531 @{ echo; echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} ${DIRDEP_INFO_XTRAS}'; } >&3 532 533.endif 534.elif !make(dirdeps) && !target(_count_dirdeps) 535beforedirdeps: _count_dirdeps 536_count_dirdeps: .NOMETA 537 @echo "${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}`" 538 539.endif 540.endif 541 542.if ${BUILD_DIRDEPS} == "yes" 543 544# the rest is done repeatedly for every Makefile.depend we read. 545# if we are anything but the original dir we care only about the 546# machine type we were included for.. 547 548.if ${DEP_RELDIR} == "." 549_this_dir := ${SRCTOP} 550.else 551_this_dir := ${SRCTOP}/${DEP_RELDIR} 552.endif 553 554# on rare occasions, there can be a need for extra help 555_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 556.-include <${_dep_hack}> 557.-include <${_dep_hack:R}.options> 558 559.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 560# this should be all 561_machines := ${DEP_MACHINE} 562.else 563# this is the machine list we actually use below 564_machines := ${_only_machines} 565 566.if defined(HOSTPROG) || ${DEP_MACHINE:Nhost*} == "" 567# we need to build this guy's dependencies for host as well. 568.if ${DEP_MACHINE:Nhost*} == "" 569_machines += ${DEP_MACHINE} 570.else 571_machines += host 572.endif 573.endif 574 575_machines := ${_machines:O:u} 576.endif 577 578.if ${TARGET_SPEC_VARS:[#]} > 1 579# we need to tweak _machines 580_dm := ${DEP_MACHINE} 581# apply the same filtering that we do when qualifying DIRDEPS. 582# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 583# Again we expect that any already qualified machines are fully qualified. 584_machines := ${_machines:M*,*} ${_machines:N*,*:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 585DEP_MACHINE := ${_dm} 586_machines := ${_machines:O:u} 587.endif 588 589# reset each time through 590_build_dirs = 591 592.if ${DEP_RELDIR} == ${_DEP_RELDIR} 593# pickup other machines for this dir if necessary 594_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 595.endif 596 597.if ${_debug_reldir} 598.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 599.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 600.endif 601 602.if !empty(DIRDEPS) 603# these we reset each time through as they can depend on DEP_MACHINE 604DEP_DIRDEPS_FILTER = \ 605 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 606 ${TARGET_SPEC_VARS:@v@${DIRDEPS_FILTER.${DEP_$v}:U}@} \ 607 ${DIRDEPS_FILTER:U} 608.if empty(DEP_DIRDEPS_FILTER) 609# something harmless 610DEP_DIRDEPS_FILTER = U 611.endif 612 613# this is what we start with 614__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 615 616# some entries may be qualified with .<machine> 617# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 618# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 619__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 620__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 621 622.if ${DEP_RELDIR} == ${_DEP_RELDIR} 623# if it was called out - we likely need it. 624__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} \ 625 ${DPADD:U.:M${HOST_OBJTOP32:Uno}/*:S,${HOST_OBJTOP32:Uno}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host32,:N.*:@d@${SRCTOP}/$d@} 626__qual_depdirs += ${__hostdpadd} 627.endif 628 629.if ${_debug_reldir} 630.info depdirs=${__depdirs} 631.info qualified=${__qual_depdirs} 632.info unqualified=${__unqual_depdirs} 633.endif 634 635# _build_dirs is what we will feed to _DIRDEP_USE 636_build_dirs += \ 637 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 638 ${__qual_depdirs:N*.host} \ 639 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 640 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 641 642# qualify everything now 643_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 644 645.endif # empty DIRDEPS 646 647_build_all_dirs += ${_build_dirs} ${_build_xtra_dirs} 648_build_all_dirs := ${_build_all_dirs:O:u} 649 650# Normally if doing make -V something, 651# we do not want to waste time chasing DIRDEPS 652# but if we want to count the number of Makefile.depend* read, we do. 653.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 654.if !empty(_build_all_dirs) 655.if ${BUILD_DIRDEPS_CACHE} == "yes" 656x!= echo; { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; } >&3 657# guard against _new_dirdeps being too big for a single command line 658_new_dirdeps := ${_build_all_dirs:@x@${target($x):?:$x}@} 659.export _build_xtra_dirs _new_dirdeps 660.if !empty(DEP_EXPORT_VARS) 661# Discouraged, but there are always exceptions. 662# Handle it here rather than explain how. 663x!= echo; { echo; ${DEP_EXPORT_VARS:@v@echo '$v=${$v}';@} echo '.export ${DEP_EXPORT_VARS}'; echo; } >&3 664.endif 665.else 666# this makes it all happen 667dirdeps: ${_build_all_dirs} 668.endif 669${_build_all_dirs}: _DIRDEP_USE 670 671.if ${_debug_reldir} 672.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 673.endif 674 675.if !empty(DEP_EXPORT_VARS) 676.export ${DEP_EXPORT_VARS} 677DEP_EXPORT_VARS= 678.endif 679 680# this builds the dependency graph 681.for m in ${_machines} 682.if ${BUILD_DIRDEPS_CACHE} == "yes" && !empty(_build_dirs) 683x!= echo; { echo; echo 'DIRDEPS.${_this_dir}.$m = \'; } >&3 684_cache_deps = 685.endif 686# it would be nice to do :N${.TARGET} 687.if !empty(__qual_depdirs) 688.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 689.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 690.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 691.endif 692.if ${BUILD_DIRDEPS_CACHE} == "yes" 693_cache_deps += ${_build_dirs:M*.$q} 694.else 695${_this_dir}.$m: ${_build_dirs:M*.$q} 696.endif 697.endfor 698.endif 699.if ${_debug_reldir} 700.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 701.endif 702.if ${BUILD_DIRDEPS_CACHE} == "yes" 703.if !empty(_build_dirs) 704_cache_deps += ${_build_dirs:M*.$m:N${_this_dir}.$m} 705.if !empty(_cache_deps) 706.export _cache_deps 707x!= echo; for x in $$_cache_deps; do echo " $$x \\"; done >&3 708.endif 709x!= echo; { echo; echo '${_this_dir}.$m: $${DIRDEPS.${_this_dir}.$m}'; \ 710 echo; echo 'dirdeps: ${_this_dir}.$m \'; \ 711 for x in $$_build_xtra_dirs; do echo " $$x \\"; done; \ 712 echo; for x in $$_new_dirdeps; do echo "$$x: _DIRDEP_USE"; done; } >&3 713.endif 714.else 715${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 716.endif 717.endfor 718 719.endif 720 721# Now find more dependencies - and recurse. 722.for d in ${_build_all_dirs} 723.if !target(_dirdeps_checked.$d) 724# once only 725_dirdeps_checked.$d: 726.if ${_debug_search} 727.info checking $d 728.endif 729# Note: _build_all_dirs is fully qualifed so d:R is always the directory 730.if exists(${d:R}) 731# we pass _DEP_TARGET_SPEC to tell the next step what we want 732_DEP_TARGET_SPEC := ${d:E} 733# some makefiles may still look at this 734_DEP_MACHINE := ${d:E:C/,.*//} 735# set these too in case Makefile.depend* uses them 736.if ${TARGET_SPEC_VARS:[#]} > 1 737_dtspec := ${_DEP_TARGET_SPEC:S/,/ /g} 738.for i in ${_tspec_x} 739DEP_${TARGET_SPEC_VARS:[$i]} := ${_dtspec:[$i]} 740.endfor 741.else 742DEP_MACHINE := ${_DEP_MACHINE} 743.endif 744# Warning: there is an assumption here that MACHINE is always 745# the first entry in TARGET_SPEC_VARS. 746# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 747_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 748.if !empty(_m) 749# M_dep_qual_fixes isn't geared to Makefile.depend 750_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 751.if ${_debug_search} 752.info Looking for ${_qm} 753.endif 754# set this "just in case" 755# we can skip :tA since we computed the path above 756DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 757# and reset this 758DIRDEPS = 759.if ${_debug_reldir} && ${_qm} != ${_m} 760.info loading ${_m} for ${d:E} 761.endif 762.include <${_m}> 763.else 764.-include <local.dirdeps-missing.mk> 765.endif 766.endif 767.endif 768.endfor 769 770.endif # -V 771.endif # BUILD_DIRDEPS 772 773.elif ${.MAKE.LEVEL} > 42 774.error You should have stopped recursing by now. 775.else 776# we are building something 777DEP_RELDIR := ${RELDIR} 778_DEP_RELDIR := ${RELDIR} 779# Since we are/should be included by .MAKE.DEPENDFILE 780# This is a final opportunity to add/hook global rules. 781.-include <local.dirdeps-build.mk> 782 783# skip _reldir_{finish,failed} if not included from Makefile.depend* 784# or not in meta mode 785.if !defined(WITHOUT_META_STATS) && ${.INCLUDEDFROMFILE:U:M${.MAKE.DEPENDFILE_PREFIX}*} != "" && ${.MAKE.MODE:Mmeta} != "" 786 787meta_stats= meta=${empty(.MAKE.META.FILES):?0:${.MAKE.META.FILES:[#]}} \ 788 created=${empty(.MAKE.META.CREATED):?0:${.MAKE.META.CREATED:[#]}} 789 790.if !target(_reldir_finish) 791.END: _reldir_finish 792_reldir_finish: .NOMETA 793 @echo "${TRACER}Finished ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 794.endif 795 796.if !target(_reldir_failed) 797.ERROR: _reldir_failed 798_reldir_failed: .NOMETA 799 @echo "${TRACER}Failed ${RELDIR}.${TARGET_SPEC} seconds=$$(( ${now_utc} - ${start_utc} )) ${meta_stats}" 800.endif 801 802.endif 803 804# pickup local dependencies 805.if ${MAKE_VERSION} < 20160220 806.-include <.depend> 807.else 808.dinclude <.depend> 809.endif 810.endif 811 812# bootstrapping new dependencies made easy? 813.if !target(bootstrap) && (make(bootstrap) || \ 814 make(bootstrap-this) || \ 815 make(bootstrap-recurse) || \ 816 make(bootstrap-empty)) 817 818# if we are bootstrapping create the default 819_want = ${.CURDIR}/${.MAKE.DEPENDFILE_DEFAULT:T} 820 821.if exists(${_want}) 822# stop here 823${.TARGETS:Mboot*}: 824.elif !make(bootstrap-empty) 825# find a Makefile.depend to use as _src 826_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 827.if empty(_src) 828.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T}${.newline}Use: bootstrap-empty 829.endif 830 831_src?= ${.MAKE.DEPENDFILE} 832 833.MAKE.DEPENDFILE_BOOTSTRAP_SED+= -e 's/${_src:E:C/,.*//}/${MACHINE}/g' 834 835# just create Makefile.depend* for this dir 836bootstrap-this: .NOTMAIN 837 @echo Bootstrapping ${RELDIR}/${_want:T} from ${_src:T}; \ 838 echo You need to build ${RELDIR} to correctly populate it. 839.if ${_src:T} != ${.MAKE.DEPENDFILE_PREFIX:T} 840 (cd ${.CURDIR} && sed ${.MAKE.DEPENDFILE_BOOTSTRAP_SED} ${_src} > ${_want:T}) 841.else 842 cp ${.CURDIR}/${_src:T} ${_want} 843.endif 844 845# create Makefile.depend* for this dir and its dependencies 846bootstrap: bootstrap-recurse 847bootstrap-recurse: bootstrap-this 848 849_mf := ${.PARSEFILE} 850bootstrap-recurse: .NOTMAIN .MAKE 851 @cd ${SRCTOP} && \ 852 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 853 test -d $$d || d=$${d%.*}; \ 854 test -d $$d || continue; \ 855 echo "Checking $$d for bootstrap ..."; \ 856 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 857 done 858 859.endif 860 861# create an empty Makefile.depend* to get the ball rolling. 862bootstrap-empty: .NOTMAIN .NOMETA 863 @echo Creating empty ${RELDIR}/${_want:T}; \ 864 echo You need to build ${RELDIR} to correctly populate it. 865 @{ echo DIRDEPS=; echo ".include <dirdeps.mk>"; } > ${_want} 866 867.endif 868