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