1# $FreeBSD$ 2# $Id: dirdeps.mk,v 1.54 2015/06/08 20:55:11 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# pickup customizations 247# as below you can use !target(_DIRDEP_USE) to protect things 248# which should only be done once. 249.-include "local.dirdeps.mk" 250 251# the first time we are included the _DIRDEP_USE target will not be defined 252# we can use this as a clue to do initialization and other one time things. 253.if !target(_DIRDEP_USE) 254# make sure this target exists 255dirdeps: beforedirdeps .WAIT 256beforedirdeps: 257 258# We normally expect to be included by Makefile.depend.* 259# which sets the DEP_* macros below. 260DEP_RELDIR ?= ${RELDIR} 261 262# this can cause lots of output! 263# set to a set of glob expressions that might match RELDIR 264DEBUG_DIRDEPS ?= no 265 266# remember the initial value of DEP_RELDIR - we test for it below. 267_DEP_RELDIR := ${DEP_RELDIR} 268 269# things we skip for host tools 270SKIP_HOSTDIR ?= 271 272NSkipHostDir = ${SKIP_HOSTDIR:N*.host*:S,$,.host*,:N.host*:S,^,${SRCTOP}/,:${M_ListToSkip}} 273 274# things we always skip 275# SKIP_DIRDEPS allows for adding entries on command line. 276SKIP_DIR += .host *.WAIT ${SKIP_DIRDEPS} 277SKIP_DIR.host += ${SKIP_HOSTDIR} 278 279DEP_SKIP_DIR = ${SKIP_DIR} \ 280 ${SKIP_DIR.${DEP_TARGET_SPEC}:U} \ 281 ${SKIP_DIR.${DEP_MACHINE}:U} \ 282 ${SKIP_DIRDEPS.${DEP_MACHINE}:U} 283 284NSkipDir = ${DEP_SKIP_DIR:${M_ListToSkip}} 285 286.if defined(NO_DIRDEPS) || defined(NODIRDEPS) || defined(WITHOUT_DIRDEPS) 287# confine ourselves to the original dir 288DIRDEPS_FILTER += M${_DEP_RELDIR}* 289.endif 290 291# this is what we run below 292DIRDEP_MAKE?= ${.MAKE} 293 294# we suppress SUBDIR when visiting the leaves 295# we assume sys.mk will set MACHINE_ARCH 296# you can add extras to DIRDEP_USE_ENV 297# if there is no makefile in the target directory, we skip it. 298_DIRDEP_USE: .USE .MAKE 299 @for m in ${.MAKE.MAKEFILE_PREFERENCE}; do \ 300 test -s ${.TARGET:R}/$$m || continue; \ 301 echo "${TRACER}Checking ${.TARGET:R} for ${.TARGET:E} ..."; \ 302 MACHINE_ARCH= NO_SUBDIR=1 ${DIRDEP_USE_ENV} \ 303 TARGET_SPEC=${.TARGET:E} \ 304 MACHINE=${.TARGET:E} \ 305 ${DIRDEP_MAKE} -C ${.TARGET:R} || exit 1; \ 306 break; \ 307 done 308 309.ifdef ALL_MACHINES 310# this is how you limit it to only the machines we have been built for 311# previously. 312.if empty(ONLY_MACHINE_LIST) 313.if !empty(ALL_MACHINE_LIST) 314# ALL_MACHINE_LIST is the list of all legal machines - ignore anything else 315_machine_list != cd ${_CURDIR} && 'ls' -1 ${ALL_MACHINE_LIST:O:u:@m@${.MAKE.DEPENDFILE:T:R}.$m@} 2> /dev/null; echo 316.else 317_machine_list != 'ls' -1 ${_CURDIR}/${.MAKE.DEPENDFILE_PREFIX}.* 2> /dev/null; echo 318.endif 319_only_machines := ${_machine_list:${NIgnoreFiles:UN*.bak}:E:O:u} 320.else 321_only_machines := ${ONLY_MACHINE_LIST} 322.endif 323 324.if empty(_only_machines) 325# we must be boot-strapping 326_only_machines := ${TARGET_MACHINE:U${ALL_MACHINE_LIST:U${DEP_MACHINE}}} 327.endif 328 329.else # ! ALL_MACHINES 330# if ONLY_MACHINE_LIST is set, we are limited to that 331# if TARGET_MACHINE is set - it is really the same as ONLY_MACHINE_LIST 332# otherwise DEP_MACHINE is it - so DEP_MACHINE will match. 333_only_machines := ${ONLY_MACHINE_LIST:U${TARGET_MACHINE:U${DEP_MACHINE}}:M${DEP_MACHINE}} 334.endif 335 336.if !empty(NOT_MACHINE_LIST) 337_only_machines := ${_only_machines:${NOT_MACHINE_LIST:${M_ListToSkip}}} 338.endif 339 340# make sure we have a starting place? 341DIRDEPS ?= ${RELDIR} 342.endif # target 343 344# if repeatedly building the same target, 345# we can avoid the overhead of re-computing the tree dependencies. 346MK_DIRDEPS_CACHE ?= no 347BUILD_DIRDEPS_CACHE ?= no 348BUILD_DIRDEPS ?= yes 349 350.if !defined(NO_DIRDEPS) 351.if ${MK_DIRDEPS_CACHE} == "yes" 352# this is where we will cache all our work 353DIRDEPS_CACHE?= ${_OBJDIR}/dirdeps.cache${.TARGETS:Nall:O:u:ts-:S,/,_,g:S,^,.,:N.} 354 355# just ensure this exists 356build-dirdeps: 357 358M_oneperline = @x@\\${.newline} $$x@ 359 360.if ${BUILD_DIRDEPS_CACHE} == "no" 361.if !target(dirdeps-cached) 362# we do this via sub-make 363BUILD_DIRDEPS = no 364 365dirdeps: dirdeps-cached 366dirdeps-cached: ${DIRDEPS_CACHE} .MAKE 367 @echo "${TRACER}Using ${DIRDEPS_CACHE}" 368 @MAKELEVEL=${.MAKE.LEVEL} ${.MAKE} -C ${_CURDIR} -f ${DIRDEPS_CACHE} \ 369 dirdeps MK_DIRDEPS_CACHE=no BUILD_DIRDEPS=no 370 371# these should generally do 372BUILD_DIRDEPS_MAKEFILE ?= ${MAKEFILE} 373BUILD_DIRDEPS_TARGETS ?= ${.TARGETS} 374 375# we need the .meta file to ensure we update if 376# any of the Makefile.depend* changed. 377# We do not want to compare the command line though. 378${DIRDEPS_CACHE}: .META .NOMETA_CMP 379 +@{ echo '# Autogenerated - do NOT edit!'; echo; \ 380 echo 'BUILD_DIRDEPS=no'; echo; \ 381 echo '.include <dirdeps.mk>'; \ 382 } > ${.TARGET}.new 383 +@MAKELEVEL=${.MAKE.LEVEL} DIRDEPS_CACHE=${DIRDEPS_CACHE} \ 384 DIRDEPS="${DIRDEPS}" \ 385 MAKEFLAGS= ${.MAKE} -C ${_CURDIR} -f ${BUILD_DIRDEPS_MAKEFILE} \ 386 ${BUILD_DIRDEPS_TARGETS} BUILD_DIRDEPS_CACHE=yes \ 387 .MAKE.DEPENDFILE=.none \ 388 3>&1 1>&2 | sed 's,${SRCTOP},$${SRCTOP},g' >> ${.TARGET}.new && \ 389 mv ${.TARGET}.new ${.TARGET} 390 391.endif 392.elif !target(_count_dirdeps) 393# we want to capture the dirdeps count in the cache 394.END: _count_dirdeps 395_count_dirdeps: .NOMETA 396 @echo '.info $${.newline}$${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]}' >&3 397 398.endif 399.elif !make(dirdeps) && !target(_count_dirdeps) 400beforedirdeps: _count_dirdeps 401_count_dirdeps: .NOMETA 402 @echo "${TRACER}Makefiles read: total=${.MAKE.MAKEFILES:[#]} depend=${.MAKE.MAKEFILES:M*depend*:[#]} dirdeps=${.ALLTARGETS:M${SRCTOP}*:O:u:[#]} seconds=`expr ${now_utc} - ${start_utc}`" 403 404.endif 405.endif 406 407.if ${BUILD_DIRDEPS} == "yes" 408.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.${DEP_MACHINE}:L:M$x}@} != "" 409_debug_reldir = 1 410.else 411_debug_reldir = 0 412.endif 413.if ${DEBUG_DIRDEPS:@x@${DEP_RELDIR:M$x}${${DEP_RELDIR}.depend:L:M$x}@} != "" 414_debug_search = 1 415.else 416_debug_search = 0 417.endif 418 419# the rest is done repeatedly for every Makefile.depend we read. 420# if we are anything but the original dir we care only about the 421# machine type we were included for.. 422 423.if ${DEP_RELDIR} == "." 424_this_dir := ${SRCTOP} 425.else 426_this_dir := ${SRCTOP}/${DEP_RELDIR} 427.endif 428 429# on rare occasions, there can be a need for extra help 430_dep_hack := ${_this_dir}/${.MAKE.DEPENDFILE_PREFIX}.inc 431.-include "${_dep_hack}" 432 433.if ${DEP_RELDIR} != ${_DEP_RELDIR} || ${DEP_TARGET_SPEC} != ${TARGET_SPEC} 434# this should be all 435_machines := ${DEP_MACHINE} 436.else 437# this is the machine list we actually use below 438_machines := ${_only_machines} 439 440.if defined(HOSTPROG) || ${DEP_MACHINE} == "host" 441# we need to build this guy's dependencies for host as well. 442_machines += host 443.endif 444 445_machines := ${_machines:O:u} 446.endif 447 448.if ${TARGET_SPEC_VARS:[#]} > 1 449# we need to tweak _machines 450_dm := ${DEP_MACHINE} 451# apply the same filtering that we do when qualifying DIRDEPS. 452# M_dep_qual_fixes expects .${MACHINE}* so add (and remove) '.' 453_machines := ${_machines:@DEP_MACHINE@${DEP_TARGET_SPEC}@:S,^,.,:${M_dep_qual_fixes:ts:}:O:u:S,^.,,} 454DEP_MACHINE := ${_dm} 455.endif 456 457# reset each time through 458_build_dirs = 459 460.if ${DEP_RELDIR} == ${_DEP_RELDIR} 461# pickup other machines for this dir if necessary 462.if ${BUILD_AT_LEVEL0:Uyes} == "no" 463_build_dirs += ${_machines:@m@${_CURDIR}.$m@} 464.else 465_build_dirs += ${_machines:N${DEP_TARGET_SPEC}:@m@${_CURDIR}.$m@} 466.if ${DEP_TARGET_SPEC} == ${TARGET_SPEC} 467# pickup local dependencies now 468.-include <.depend> 469.endif 470.endif 471.endif 472 473.if ${_debug_reldir} 474.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: DIRDEPS='${DIRDEPS}' 475.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: _machines='${_machines}' 476.endif 477 478.if !empty(DIRDEPS) 479# these we reset each time through as they can depend on DEP_MACHINE 480DEP_DIRDEPS_FILTER = \ 481 ${DIRDEPS_FILTER.${DEP_TARGET_SPEC}:U} \ 482 ${DIRDEPS_FILTER.${DEP_MACHINE}:U} \ 483 ${DIRDEPS_FILTER:U} 484.if empty(DEP_DIRDEPS_FILTER) 485# something harmless 486DEP_DIRDEPS_FILTER = U 487.endif 488 489# this is what we start with 490__depdirs := ${DIRDEPS:${NSkipDir}:${DEP_DIRDEPS_FILTER:ts:}:C,//+,/,g:O:u:@d@${SRCTOP}/$d@} 491 492# some entries may be qualified with .<machine> 493# the :M*/*/*.* just tries to limit the dirs we check to likely ones. 494# the ${d:E:M*/*} ensures we don't consider junos/usr.sbin/mgd 495__qual_depdirs := ${__depdirs:M*/*/*.*:@d@${exists($d):?:${"${d:E:M*/*}":?:${exists(${d:R}):?$d:}}}@} 496__unqual_depdirs := ${__depdirs:${__qual_depdirs:Uno:${M_ListToSkip}}} 497 498.if ${DEP_RELDIR} == ${_DEP_RELDIR} 499# if it was called out - we likely need it. 500__hostdpadd := ${DPADD:U.:M${HOST_OBJTOP}/*:S,${HOST_OBJTOP}/,,:H:${NSkipDir}:${DIRDEPS_FILTER:ts:}:S,$,.host,:N.*:@d@${SRCTOP}/$d@} 501__qual_depdirs += ${__hostdpadd} 502.endif 503 504.if ${_debug_reldir} 505.info depdirs=${__depdirs} 506.info qualified=${__qual_depdirs} 507.info unqualified=${__unqual_depdirs} 508.endif 509 510# _build_dirs is what we will feed to _DIRDEP_USE 511_build_dirs += \ 512 ${__qual_depdirs:M*.host:${NSkipHostDir}:N.host} \ 513 ${__qual_depdirs:N*.host} \ 514 ${_machines:Mhost*:@m@${__unqual_depdirs:@d@$d.$m@}@:${NSkipHostDir}:N.host} \ 515 ${_machines:Nhost*:@m@${__unqual_depdirs:@d@$d.$m@}@} 516 517# qualify everything now 518_build_dirs := ${_build_dirs:${M_dep_qual_fixes:ts:}:O:u} 519 520.endif # empty DIRDEPS 521 522# Normally if doing make -V something, 523# we do not want to waste time chasing DIRDEPS 524# but if we want to count the number of Makefile.depend* read, we do. 525.if ${.MAKEFLAGS:M-V${_V_READ_DIRDEPS}} == "" 526.if !empty(_build_dirs) 527.if ${BUILD_DIRDEPS_CACHE} == "yes" 528x!= { echo; echo '\# ${DEP_RELDIR}.${DEP_TARGET_SPEC}'; \ 529 echo 'dirdeps: ${_build_dirs:${M_oneperline}}'; echo; } >&3; echo 530x!= { ${_build_dirs:@x@${target($x):?:echo '$x: _DIRDEP_USE';}@} echo; } >&3; echo 531.else 532# this makes it all happen 533dirdeps: ${_build_dirs} 534.endif 535${_build_dirs}: _DIRDEP_USE 536 537.if ${_debug_reldir} 538.info ${DEP_RELDIR}.${DEP_TARGET_SPEC}: needs: ${_build_dirs} 539.endif 540 541# this builds the dependency graph 542.for m in ${_machines} 543# it would be nice to do :N${.TARGET} 544.if !empty(__qual_depdirs) 545.for q in ${__qual_depdirs:${M_dep_qual_fixes:ts:}:E:O:u:N$m} 546.if ${_debug_reldir} || ${DEBUG_DIRDEPS:@x@${${DEP_RELDIR}.$m:L:M$x}${${DEP_RELDIR}.$q:L:M$x}@} != "" 547.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$q} 548.endif 549.if ${BUILD_DIRDEPS_CACHE} == "yes" 550x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$q:${M_oneperline}}'; echo; } >&3; echo 551.else 552${_this_dir}.$m: ${_build_dirs:M*.$q} 553.endif 554.endfor 555.endif 556.if ${_debug_reldir} 557.info ${DEP_RELDIR}.$m: graph: ${_build_dirs:M*.$m:N${_this_dir}.$m} 558.endif 559.if ${BUILD_DIRDEPS_CACHE} == "yes" 560x!= { echo; echo '${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m:${M_oneperline}}'; echo; } >&3; echo 561.else 562${_this_dir}.$m: ${_build_dirs:M*.$m:N${_this_dir}.$m} 563.endif 564.endfor 565 566.endif 567 568# Now find more dependencies - and recurse. 569.for d in ${_build_dirs} 570.if ${_DIRDEP_CHECKED:M$d} == "" 571# once only 572_DIRDEP_CHECKED += $d 573.if ${_debug_search} 574.info checking $d 575.endif 576# Note: _build_dirs is fully qualifed so d:R is always the directory 577.if exists(${d:R}) 578# Warning: there is an assumption here that MACHINE is always 579# the first entry in TARGET_SPEC_VARS. 580# If TARGET_SPEC and MACHINE are insufficient, you have a problem. 581_m := ${.MAKE.DEPENDFILE_PREFERENCE:T:S;${TARGET_SPEC}$;${d:E};:S;${MACHINE};${d:E:C/,.*//};:@m@${exists(${d:R}/$m):?${d:R}/$m:}@:[1]} 582.if !empty(_m) 583# M_dep_qual_fixes isn't geared to Makefile.depend 584_qm := ${_m:C;(\.depend)$;\1.${d:E};:${M_dep_qual_fixes:ts:}} 585.if ${_debug_search} 586.info Looking for ${_qm} 587.endif 588# we pass _DEP_TARGET_SPEC to tell the next step what we want 589_DEP_TARGET_SPEC := ${d:E} 590# some makefiles may still look at this 591_DEP_MACHINE := ${d:E:C/,.*//} 592# set this "just in case" 593# we can skip :tA since we computed the path above 594DEP_RELDIR := ${_m:H:S,${SRCTOP}/,,} 595# and reset this 596DIRDEPS = 597.if ${_debug_reldir} && ${_qm} != ${_m} 598.info loading ${_m} for ${d:E} 599.endif 600.include <${_m}> 601.endif 602.endif 603.endif 604.endfor 605 606.endif # -V 607.endif # BUILD_DIRDEPS 608 609.elif ${.MAKE.LEVEL} > 42 610.error You should have stopped recursing by now. 611.else 612# we are building something 613DEP_RELDIR := ${RELDIR} 614_DEP_RELDIR := ${RELDIR} 615# pickup local dependencies 616.-include <.depend> 617.endif 618 619# bootstrapping new dependencies made easy? 620.if (make(bootstrap) || make(bootstrap-recurse)) && !target(bootstrap) 621 622.if exists(${.CURDIR}/${.MAKE.DEPENDFILE:T}) 623# stop here 624${.TARGETS:Mboot*}: 625.else 626# find a Makefile.depend to use as _src 627_src != cd ${.CURDIR} && for m in ${.MAKE.DEPENDFILE_PREFERENCE:T:S,${MACHINE},*,}; do test -s $$m || continue; echo $$m; break; done; echo 628.if empty(_src) 629.error cannot find any of ${.MAKE.DEPENDFILE_PREFERENCE:T} 630.endif 631 632_src?= ${.MAKE.DEPENDFILE:T} 633 634bootstrap-this: .NOTMAIN 635 @echo Bootstrapping ${RELDIR}/${.MAKE.DEPENDFILE:T} from ${_src:T} 636 (cd ${.CURDIR} && sed 's,${_src:E},${MACHINE},g' ${_src} > ${.MAKE.DEPENDFILE:T}) 637 638bootstrap: bootstrap-recurse 639bootstrap-recurse: bootstrap-this 640 641_mf := ${.PARSEFILE} 642bootstrap-recurse: .NOTMAIN .MAKE 643 @cd ${SRCTOP} && \ 644 for d in `cd ${RELDIR} && ${.MAKE} -B -f ${"${.MAKEFLAGS:M-n}":?${_src}:${.MAKE.DEPENDFILE:T}} -V DIRDEPS`; do \ 645 test -d $$d || d=$${d%.*}; \ 646 test -d $$d || continue; \ 647 echo "Checking $$d for bootstrap ..."; \ 648 (cd $$d && ${.MAKE} -f ${_mf} bootstrap-recurse); \ 649 done 650 651.endif 652.endif 653