1# $FreeBSD$ 2# $Id: dirdeps.mk,v 1.55 2015/10/20 22:04:53 sjg Exp $ 3 4# Copyright (c) 2010-2013, 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# Each Makefile.depend file sets DEP_RELDIR to be the 61# the RELDIR (path relative to SRCTOP) for its directory, and 62# since each Makefile.depend file includes dirdeps.mk, this 63# processing is recursive and results in .MAKE.LEVEL 0 learning the 64# dependencies of the tree wrt the initial directory (_DEP_RELDIR). 65# 66# BUILD_AT_LEVEL0 67# Indicates whether .MAKE.LEVEL 0 builds anything: 68# if "no" sub-makes are used to build everything, 69# if "yes" sub-makes are only used to build for other machines. 70# It is best to use "no", but this can require fixing some 71# makefiles to not do anything at .MAKE.LEVEL 0. 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# 114 115# touch this at your peril 116_DIRDEP_USE_LEVEL?= 0 117.if ${.MAKE.LEVEL} == ${_DIRDEP_USE_LEVEL} 118# only the first instance is interested in all this 119 120# First off, we want to know what ${MACHINE} to build for. 121# This can be complicated if we are using a mixture of ${MACHINE} specific 122# and non-specific Makefile.depend* 123 124.if !target(_DIRDEP_USE) 125# do some setup we only need once 126_CURDIR ?= ${.CURDIR} 127_OBJDIR ?= ${.OBJDIR} 128 129now_utc = ${%s:L:gmtime} 130.if !defined(start_utc) 131start_utc := ${now_utc} 132.endif 133 134# make sure these are empty to start with 135_DEP_TARGET_SPEC = 136_DIRDEP_CHECKED = 137 138# If TARGET_SPEC_VARS is other than just MACHINE 139# it should be set by sys.mk or similar by now. 140# TARGET_SPEC must not contain any '.'s. 141TARGET_SPEC_VARS ?= MACHINE 142# this is what we started with 143TARGET_SPEC = ${TARGET_SPEC_VARS:@v@${$v:U}@:ts,} 144# this is what we mostly use below 145DEP_TARGET_SPEC = ${TARGET_SPEC_VARS:S,^,DEP_,:@v@${$v:U}@:ts,} 146# make sure we have defaults 147.for v in ${TARGET_SPEC_VARS} 148DEP_$v ?= ${$v} 149.endfor 150 151.if ${TARGET_SPEC_VARS:[#]} > 1 152# Ok, this gets more complex (putting it mildly). 153# In order to stay sane, we need to ensure that all the build_dirs 154# we compute below are fully qualified wrt DEP_TARGET_SPEC. 155# The makefiles may only partially specify (eg. MACHINE only), 156# so we need to construct a set of modifiers to fill in the gaps. 157# jot 10 should output 1 2 3 .. 10 158JOT ?= jot 159_tspec_x := ${${JOT} ${TARGET_SPEC_VARS:[#]}:L:sh} 160# this handles unqualified entries 161M_dep_qual_fixes = C;(/[^/.,]+)$$;\1.$${DEP_TARGET_SPEC}; 162# there needs to be at least one item missing for these to make sense 163.for i in ${_tspec_x:[2..-1]} 164_tspec_m$i := ${TARGET_SPEC_VARS:[2..$i]:@w@[^,]+@:ts,} 165_tspec_a$i := ,${TARGET_SPEC_VARS:[$i..-1]:@v@$$$${DEP_$v}@:ts,} 166M_dep_qual_fixes += C;(\.${_tspec_m$i})$$;\1${_tspec_a$i}; 167.endfor 168.else 169# A harmless? default. 170M_dep_qual_fixes = U 171.endif 172 173.if !defined(.MAKE.DEPENDFILE_PREFERENCE) 174# .MAKE.DEPENDFILE_PREFERENCE makes the logic below neater? 175# you really want this set by sys.mk or similar 176.MAKE.DEPENDFILE_PREFERENCE = ${_CURDIR}/${.MAKE.DEPENDFILE:T} 177.if ${.MAKE.DEPENDFILE:E} == "${TARGET_SPEC}" 178.if ${TARGET_SPEC} != ${MACHINE} 179.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R}.$${MACHINE} 180.endif 181.MAKE.DEPENDFILE_PREFERENCE += ${_CURDIR}/${.MAKE.DEPENDFILE:T:R} 182.endif 183.endif 184 185_default_dependfile := ${.MAKE.DEPENDFILE_PREFERENCE:[1]:T} 186_machine_dependfiles := ${.MAKE.DEPENDFILE_PREFERENCE:T:M*${MACHINE}*} 187 188# for machine specific dependfiles we require ${MACHINE} to be at the end 189# also for the sake of sanity we require a common prefix 190.if !defined(.MAKE.DEPENDFILE_PREFIX) 191# knowing .MAKE.DEPENDFILE_PREFIX helps 192.if !empty(_machine_dependfiles) 193.MAKE.DEPENDFILE_PREFIX := ${_machine_dependfiles:[1]:T:R} 194.else 195.MAKE.DEPENDFILE_PREFIX := ${_default_dependfile:T} 196.endif 197.endif 198 199 200# this is how we identify non-machine specific dependfiles 201N_notmachine := ${.MAKE.DEPENDFILE_PREFERENCE:E:N*${MACHINE}*:${M_ListToSkip}} 202 203.endif # !target(_DIRDEP_USE) 204 205# if we were included recursively _DEP_TARGET_SPEC should be valid. 206.if empty(_DEP_TARGET_SPEC) 207# we may or may not have included a dependfile yet 208.if defined(.INCLUDEDFROMFILE) 209_last_dependfile := ${.INCLUDEDFROMFILE:M${.MAKE.DEPENDFILE_PREFIX}*} 210.else 211_last_dependfile := ${.MAKE.MAKEFILES:M*/${.MAKE.DEPENDFILE_PREFIX}*:[-1]} 212.endif 213.if ${_debug_reldir:U0} 214.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _last_dependfile='${_last_dependfile}' 215.endif 216 217.if empty(_last_dependfile) || ${_last_dependfile:E:${N_notmachine}} == "" 218# this is all we have to work with 219DEP_MACHINE = ${TARGET_MACHINE:U${MACHINE}} 220_DEP_TARGET_SPEC := ${DEP_TARGET_SPEC} 221.else 222_DEP_TARGET_SPEC = ${_last_dependfile:${M_dep_qual_fixes:ts:}:E} 223.endif 224.if !empty(_last_dependfile) 225# record that we've read dependfile for this 226_DIRDEP_CHECKED += ${_CURDIR}.${TARGET_SPEC} 227.endif 228.endif 229 230# by now _DEP_TARGET_SPEC should be set, parse it. 231.if ${TARGET_SPEC_VARS:[#]} > 1 232# we need to parse DEP_MACHINE may or may not contain more info 233_tspec := ${_DEP_TARGET_SPEC:S/,/ /g} 234.for i in ${_tspec_x} 235DEP_${TARGET_SPEC_VARS:[$i]} := ${_tspec:[$i]} 236.endfor 237.for v in ${TARGET_SPEC_VARS:O:u} 238.if empty(DEP_$v) 239.undef DEP_$v 240.endif 241.endfor 242.else 243DEP_MACHINE := ${_DEP_TARGET_SPEC} 244.endif 245 246.if ${MAKEFILE:T} == ${.PARSEFILE} && empty(DIRDEPS) && ${.TARGETS:Uall:M*/*} != "" 247# This little trick let's us do 248# 249# mk -f dirdeps.mk some/dir.${TARGET_SPEC} 250# 251all: 252${.TARGETS:Nall}: all 253DIRDEPS := ${.TARGETS:M*/*} 254# so that -DNO_DIRDEPS works 255DEP_RELDIR := ${DIRDEPS:R:[1]} 256# disable DIRDEPS_CACHE as it does not like this trick 257MK_DIRDEPS_CACHE = no 258.endif 259 260 261# pickup customizations 262# as below you can use !target(_DIRDEP_USE) to protect things 263# which should only be done once. 264.-include "local.dirdeps.mk" 265 266# the first time we are included the _DIRDEP_USE target will not be defined 267# we can use this as a clue to do initialization and other one time things. 268.if !target(_DIRDEP_USE) 269# make sure this target exists 270dirdeps: beforedirdeps .WAIT 271beforedirdeps: 272 273# We normally expect to be included by Makefile.depend.* 274# which sets the DEP_* macros below. 275DEP_RELDIR ?= ${RELDIR} 276 277# this can cause lots of output! 278# set to a set of glob expressions that might match RELDIR 279DEBUG_DIRDEPS ?= no 280 281# remember the initial value of DEP_RELDIR - we test for it below. 282_DEP_RELDIR := ${DEP_RELDIR} 283 284# things we skip for host tools 285SKIP_HOSTDIR ?= 286 287NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 288 289# things we always skip 290# SKIP_DIRDEPS allows for adding entries on command line. 291SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 292SKIP_DIR.host += ${SKIP_HOSTDIR} 293 294DEP_SKIP_DIR = ${SKIP_DIR} \ 295 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 296 ${SKIP_DIR.${DEP_MACHINE}:U} \ 297 ${SKIP_DIRDEPS.${DEP_MACHINE}:U} 298 299NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 300 301.if defined(NO_DIRDEPS) || defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 302# confine ourselves to the original dir 303DIRDEPS_FILTER += M${_DEP_RELDIR}* 304.endif 305 306# this is what we run below 307DIRDEP_MAKE?= ${.MAKE} 308 309# we suppress SUBDIR when visiting the leaves 310# we assume sys.mk will set MACHINE_ARCH 311# you can add extras to DIRDEP_USE_ENV 312# if there is no makefile in the target directory, we skip it. 313_DIRDEP_USE: .USE .MAKE 314 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 315 test -s ${.TARGET:R}/$$m || continue; \ 316 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 317 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 318 TARGET_SPEC=${.TARGET:E} \ 319 MACHINE=${.TARGET:E} \ 320 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 321 break; \ 322 done 323 324.ifdef ALL_MACHINES 325# this is how you limit it to only the machines we have been built for 326# previously. 327.if empty(ONLY_MACHINE_LIST) 328.if !empty(ALL_MACHINE_LIST) 329# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 330_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 331.else 332_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 333.endif 334_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 335.else 336_only_machines := ${ONLY_MACHINE_LIST} 337.endif 338 339.if empty(_only_machines) 340# we must be boot-strapping 341_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 342.endif 343 344.else # ! ALL_MACHINES 345# if ONLY_MACHINE_LIST is set, we are limited to that 346# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 347# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 348_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 349.endif 350 351.if !empty(NOT_MACHINE_LIST) 352_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 353.endif 354 355# make sure we have a starting place? 356DIRDEPS ?= ${RELDIR} 357.endif # target 358 359# if repeatedly building the same target, 360# we can avoid the overhead of re-computing the tree dependencies. 361MK_DIRDEPS_CACHE ?= no 362BUILD_DIRDEPS_CACHE ?= no 363BUILD_DIRDEPS ?= yes 364 365.if !defined(NO_DIRDEPS) 366.if ${MK_DIRDEPS_CACHE} == "yes" 367# this is where we will cache all our work 368DIRDEPS_CACHE?= ${_OBJDIR}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 369 370# just ensure this exists 371build-dirdeps: 372 373M_oneperline = @x@\\${.newline} $$x@ 374 375.if ${BUILD_DIRDEPS_CACHE} == "no" 376.if !target(dirdeps-cached) 377# we do this via sub-make 378BUILD_DIRDEPS = no 379 380dirdeps: dirdeps-cached 381dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 382 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 383 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 384 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 385 386# these should generally do 387BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 388BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 389 390# we need the .meta file to ensure we update if 391# any of the Makefile.depend* changed. 392# We do not want to compare the command line though. 393${DIRDEPS_CACHE}: .META .NOMETA_CMP 394 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 395 echo 'BUILD_DIRDEPS=no'; echo; \ 396 echo '.include <dirdeps.mk>'; \ 397 } > ${.TARGET}.new 398 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 399 DIRDEPS="${DIRDEPS}" \ 400 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 401 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 402 .MAKE.DEPENDFILE=.none \ 403 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 404 mv ${.TARGET}.new ${.TARGET} 405 406.endif 407.elif !target(_count_dirdeps) 408# we want to capture the dirdeps count in the cache 409.END: _count_dirdeps 410_count_dirdeps: .NOMETA 411 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 412 413.endif 414.elif !make(dirdeps) && !target(_count_dirdeps) 415beforedirdeps: _count_dirdeps 416_count_dirdeps: .NOMETA 417 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 418 419.endif 420.endif 421 422.if ${BUILD_DIRDEPS} == "yes" 423.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 424_debug_reldir = 1 425.else 426_debug_reldir = 0 427.endif 428.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 429_debug_search = 1 430.else 431_debug_search = 0 432.endif 433 434# the rest is done repeatedly for every Makefile.depend we read. 435# if we are anything but the original dir we care only about the 436# machine type we were included for.. 437 438.if ${DEP_RELDIR} == "." 439_this_dir := ${SRCTOP} 440.else 441_this_dir := ${SRCTOP}/${DEP_RELDIR} 442.endif 443 444# on rare occasions, there can be a need for extra help 445_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 446.-include "${_dep_hack}" 447 448.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 449# this should be all 450_machines := ${DEP_MACHINE} 451.else 452# this is the machine list we actually use below 453_machines := ${_only_machines} 454 455.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 456# we need to build this guy's dependencies for host as well. 457_machines += host 458.endif 459 460_machines := ${_machines:O:u} 461.endif 462 463.if ${TARGET_SPEC_VARS:[#]} > 1 464# we need to tweak _machines 465_dm := ${DEP_MACHINE} 466# apply the same filtering that we do when qualifying DIRDEPS. 467# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 468_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 469DEP_MACHINE := ${_dm} 470.endif 471 472# reset each time through 473_build_dirs = 474 475.if ${DEP_RELDIR} == ${_DEP_RELDIR} 476# pickup other machines for this dir if necessary 477.if ${BUILD_AT_LEVEL0:Uyes} == "no" 478_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 479.else 480_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 481.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 482# pickup local dependencies now 483.-include <.depend> 484.endif 485.endif 486.endif 487 488.if ${_debug_reldir} 489.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 490.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 491.endif 492 493.if !empty(DIRDEPS) 494# these we reset each time through as they can depend on DEP_MACHINE 495DEP_DIRDEPS_FILTER = \ 496 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 497 ${DIRDEPS_FILTER.${DEP_MACHINE}:U} \ 498 ${DIRDEPS_FILTER:U} 499.if empty(DEP_DIRDEPS_FILTER) 500# something harmless 501DEP_DIRDEPS_FILTER = U 502.endif 503 504# this is what we start with 505__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 506 507# some entries may be qualified with .<machine> 508# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 509# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 510__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 511__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 512 513.if ${DEP_RELDIR} == ${_DEP_RELDIR} 514# if it was called out - we likely need it. 515__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 516__qual_depdirs += ${__hostdpadd} 517.endif 518 519.if ${_debug_reldir} 520.info depdirs=${__depdirs} 521.info qualified=${__qual_depdirs} 522.info unqualified=${__unqual_depdirs} 523.endif 524 525# _build_dirs is what we will feed to _DIRDEP_USE 526_build_dirs += \ 527 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 528 ${__qual_depdirs:N*.host} \ 529 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 530 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 531 532# qualify everything now 533_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 534 535.endif # empty DIRDEPS 536 537# Normally if doing make -V something, 538# we do not want to waste time chasing DIRDEPS 539# but if we want to count the number of Makefile.depend* read, we do. 540.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 541.if !empty(_build_dirs) 542.if ${BUILD_DIRDEPS_CACHE} == "yes" 543x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 544 echo 'dirdeps: ${_build_dirs:${M_oneperline}}'; echo; } >&3; echo 545x!= { ${_build_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 546.else 547# this makes it all happen 548dirdeps: ${_build_dirs} 549.endif 550${_build_dirs}: _DIRDEP_USE 551 552.if ${_debug_reldir} 553.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 554.endif 555 556# this builds the dependency graph 557.for m in ${_machines} 558# it would be nice to do :N${.TARGET} 559.if !empty(__qual_depdirs) 560.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 561.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 562.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 563.endif 564.if ${BUILD_DIRDEPS_CACHE} == "yes" 565x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 566.else 567${_this_dir}.$m: ${_build_dirs:M*.$q} 568.endif 569.endfor 570.endif 571.if ${_debug_reldir} 572.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 573.endif 574.if ${BUILD_DIRDEPS_CACHE} == "yes" 575x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 576.else 577${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 578.endif 579.endfor 580 581.endif 582 583# Now find more dependencies - and recurse. 584.for d in ${_build_dirs} 585.if ${_DIRDEP_CHECKED:M$d} == "" 586# once only 587_DIRDEP_CHECKED += $d 588.if ${_debug_search} 589.info checking $d 590.endif 591# Note: _build_dirs is fully qualifed so d:R is always the directory 592.if exists(${d:R}) 593# Warning: there is an assumption here that MACHINE is always 594# the first entry in TARGET_SPEC_VARS. 595# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 596_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 597.if !empty(_m) 598# M_dep_qual_fixes isn't geared to Makefile.depend 599_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 600.if ${_debug_search} 601.info Looking for ${_qm} 602.endif 603# we pass _DEP_TARGET_SPEC to tell the next step what we want 604_DEP_TARGET_SPEC := ${d:E} 605# some makefiles may still look at this 606_DEP_MACHINE := ${d:E:C/,.*//} 607# set this "just in case" 608# we can skip :tA since we computed the path above 609DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 610# and reset this 611DIRDEPS = 612.if ${_debug_reldir} && ${_qm} != ${_m} 613.info loading ${_m} for ${d:E} 614.endif 615.include <${_m}> 616.endif 617.endif 618.endif 619.endfor 620 621.endif # -V 622.endif # BUILD_DIRDEPS 623 624.elif ${.MAKE.LEVEL} > 42 625.error You should have stopped recursing by now. 626.else 627# we are building something 628DEP_RELDIR := ${RELDIR} 629_DEP_RELDIR := ${RELDIR} 630# pickup local dependencies 631.-include <.depend> 632.endif 633 634# bootstrapping new dependencies made easy? 635.if (make(bootstrap) || make(bootstrap-recurse)) && !target(bootstrap) 636 637.if exists(${.CURDIR}/${.MAKE.DEPENDFILE:T}) 638# stop here 639${.TARGETS:Mboot*}: 640.else 641# find a Makefile.depend to use as _src 642_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 643.if empty(_src) 644.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T} 645.endif 646 647_src?= ${.MAKE.DEPENDFILE:T} 648 649bootstrap-this: .NOTMAIN 650 @echo Bootstrapping ${RELDIR}/${.MAKE.DEPENDFILE:T} from ${_src:T} 651 (cd ${.CURDIR} && sed 's,${_src:E},${MACHINE},g' ${_src} > ${.MAKE.DEPENDFILE:T}) 652 653bootstrap: bootstrap-recurse 654bootstrap-recurse: bootstrap-this 655 656_mf := ${.PARSEFILE} 657bootstrap-recurse: .NOTMAIN .MAKE 658 @cd ${SRCTOP} && \ 659 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 660 test -d $$d || d=$${d%.*}; \ 661 test -d $$d || continue; \ 662 echo "Checking $$d for bootstrap ..."; \ 663 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 664 done 665 666.endif 667.endif 668