1# $FreeBSD$ 2# $Id: gendirdeps.mk,v 1.29 2015/10/03 05:00:46 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# 29# This makefile [re]generates ${.MAKE.DEPENDFILE} 30# 31 32.include <install-new.mk> 33 34# Assumptions: 35# RELDIR is the relative path from ${SRCTOP} to ${_CURDIR} 36# (SRCTOP is ${SB}/src) 37# _CURDIR is the absolute version of ${.CURDIR} 38# _OBJDIR is the absolute version of ${.OBJDIR} 39# _objroot is realpath of ${_OBJTOP} without ${MACHINE} 40# this may be different from _OBJROOT if $SB/obj is a 41# symlink to another filesystem. 42# _objroot must be a prefix match for _objtop 43 44.MAIN: all 45 46# keep this simple 47.MAKE.MODE = compat 48 49all: 50 51_CURDIR ?= ${.CURDIR} 52_OBJDIR ?= ${.OBJDIR} 53_OBJTOP ?= ${OBJTOP} 54_OBJROOT ?= ${OBJROOT:U${_OBJTOP}} 55.if ${_OBJROOT:M*/} 56_slash=/ 57.else 58_slash= 59.endif 60_objroot ?= ${_OBJROOT:tA}${_slash} 61 62_this = ${.PARSEDIR}/${.PARSEFILE} 63 64# remember what to make 65_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 66 67# We do _not_ want to read our own output! 68.MAKE.DEPENDFILE = /dev/null 69 70# caller should have set this 71META_FILES ?= ${.MAKE.META.FILES} 72 73.if !empty(META_FILES) 74 75.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 76# so we can compare below 77.-include <${_DEPENDFILE}> 78# yes, I mean :U with no value 79_DIRDEPS := ${DIRDEPS:U:O:u} 80.endif 81 82META_FILES := ${META_FILES:T:O:u} 83.export META_FILES 84 85# pickup customizations 86.-include "local.gendirdeps.mk" 87 88# these are actually prefixes that we'll skip 89# they should all be absolute paths 90SKIP_GENDIRDEPS ?= 91.if !empty(SKIP_GENDIRDEPS) 92_skip_gendirdeps = egrep -v '^(${SKIP_GENDIRDEPS:O:u:ts|})' | 93.else 94_skip_gendirdeps = 95.endif 96 97# Below we will turn _{VAR} into ${VAR} which keeps this simple 98# GENDIRDEPS_FILTER_DIR_VARS is a list of dirs to be substiuted for. 99# GENDIRDEPS_FILTER_VARS is more general. 100# In each case order matters. 101.if !empty(GENDIRDEPS_FILTER_DIR_VARS) 102GENDIRDEPS_FILTER += ${GENDIRDEPS_FILTER_DIR_VARS:@v@S,${$v},_{${v}},@} 103.endif 104.if !empty(GENDIRDEPS_FILTER_VARS) 105GENDIRDEPS_FILTER += ${GENDIRDEPS_FILTER_VARS:@v@S,/${$v}/,/_{${v}}/,@:NS,//,*:u} 106.endif 107 108# this (*should* be set in meta.sys.mk) 109# is the script that extracts what we want. 110META2DEPS ?= ${.PARSEDIR}/meta2deps.sh 111META2DEPS := ${META2DEPS} 112 113.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" && ${DEBUG_GENDIRDEPS:Uno:Mmeta2d*} != "" 114_time = time 115_sh_x = sh -x 116_py_d = -ddd 117.else 118_time = 119_sh_x = 120_py_d = 121.endif 122 123.if ${META2DEPS:E} == "py" 124# we can afford to do this all the time. 125DPDEPS ?= no 126META2DEPS_CMD = ${_time} ${PYTHON} ${META2DEPS} ${_py_d} 127.if ${DPDEPS:tl} != "no" 128META2DEPS_CMD += -D ${DPDEPS} 129.endif 130META2DEPS_FILTER = sed 's,^src:,${SRCTOP}/,;s,^\([^/]\),${OBJTOP}/\1,' | 131.elif ${META2DEPS:E} == "sh" 132META2DEPS_CMD = ${_time} ${_sh_x} ${META2DEPS} OBJTOP=${_OBJTOP} 133.else 134META2DEPS_CMD ?= ${META2DEPS} 135.endif 136 137.if ${TARGET_OBJ_SPEC:U${MACHINE}} != ${MACHINE} 138META2DEPS_CMD += -T ${TARGET_OBJ_SPEC} 139.endif 140META2DEPS_CMD += \ 141 -R ${RELDIR} -H ${HOST_TARGET} \ 142 ${M2D_OBJROOTS:O:u:@o@-O $o@} 143 144 145M2D_OBJROOTS += ${OBJTOP} ${_OBJROOT} ${_objroot} 146.if defined(SB_OBJROOT) 147M2D_OBJROOTS += ${SB_OBJROOT} 148.endif 149.if ${.MAKE.DEPENDFILE_PREFERENCE:U${.MAKE.DEPENDFILE}:M*.${MACHINE}} == "" 150# meta2deps.py only groks objroot 151# so we need to give it what it expects 152# and tell it not to add machine qualifiers 153META2DEPS_ARGS += MACHINE=none 154.endif 155.if defined(SB_BACKING_SB) 156META2DEPS_CMD += -S ${SB_BACKING_SB}/src 157M2D_OBJROOTS += ${SB_BACKING_SB}/${SB_OBJPREFIX} 158.endif 159 160# we are only interested in the dirs 161# specifically those we read something from. 162# we canonicalize them to keep things simple 163# if we are using a split-fs sandbox, it gets a little messier. 164_objtop := ${_OBJTOP:tA} 165dir_list != cd ${_OBJDIR} && \ 166 ${META2DEPS_CMD} MACHINE=${MACHINE} \ 167 SRCTOP=${SRCTOP} RELDIR=${RELDIR} CURDIR=${_CURDIR} \ 168 ${META2DEPS_ARGS} \ 169 ${META_FILES:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 170 sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,' 171 172.if ${dir_list:M*ERROR\:*} != "" 173.warning ${dir_list:tW:C,.*(ERROR),\1,} 174.warning Skipping ${_DEPENDFILE:S,${SRCTOP}/,,} 175# we are not going to update anything 176.else 177dpadd_dir_list= 178.if !empty(DPADD) 179_nonlibs := ${DPADD:T:Nlib*:N*include} 180.if !empty(_nonlibs) 181ddep_list = 182.for f in ${_nonlibs:@x@${DPADD:M*/$x}@} 183.if exists($f.dirdep) 184ddep_list += $f.dirdep 185.elif exists(${f:H}.dirdep) 186ddep_list += ${f:H}.dirdep 187.else 188dir_list += ${f:H:tA} 189dpadd_dir_list += ${f:H:tA} 190.endif 191.endfor 192.if !empty(ddep_list) 193ddeps != cat ${ddep_list:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 194 sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,;s,\.${MACHINE}$$,,' 195 196.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 197.info ${RELDIR}: raw_dir_list='${dir_list}' 198.info ${RELDIR}: ddeps='${ddeps}' 199.endif 200dir_list += ${ddeps} 201.endif 202.endif 203.endif 204 205# DIRDEPS represent things that had to have been built first 206# so they should all be undir OBJTOP. 207# Note that ${_OBJTOP}/bsd/include/machine will get reported 208# to us as $SRCTOP/bsd/sys/$MACHINE_ARCH/include meaning we 209# will want to visit bsd/include 210# so we add 211# ${"${dir_list:M*bsd/sys/${MACHINE_ARCH}/include}":?bsd/include:} 212# to GENDIRDEPS_DIR_LIST_XTRAS 213_objtops = ${OBJTOP} ${_OBJTOP} ${_objtop} 214_objtops := ${_objtops:O:u} 215dirdep_list = \ 216 ${_objtops:@o@${dir_list:M$o*/*:C,$o[^/]*/,,}@} \ 217 ${GENDIRDEPS_DIR_LIST_XTRAS} 218 219# sort longest first 220M2D_OBJROOTS := ${M2D_OBJROOTS:O:u:[-1..1]} 221 222# anything we use from an object dir other than ours 223# needs to be qualified with its .<machine> suffix 224# (we used the pseudo machine "host" for the HOST_TARGET). 225skip_ql= ${SRCTOP}* ${_objtops:@o@$o*@} 226.for o in ${M2D_OBJROOTS:${skip_ql:${M_ListToSkip}}} 227# we need := so only skip_ql to this point applies 228ql.$o := ${dir_list:${skip_ql:${M_ListToSkip}}:M$o*/*/*:C,$o([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,} 229qualdir_list += ${ql.$o} 230.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 231.info ${RELDIR}: o=$o ${ql.$o qualdir_list:L:@v@$v=${$v}@} 232.endif 233skip_ql+= $o* 234.endfor 235 236dirdep_list := ${dirdep_list:O:u} 237qualdir_list := ${qualdir_list:N*.${MACHINE}:O:u} 238 239DIRDEPS = \ 240 ${dirdep_list:N${RELDIR}:N${RELDIR}/*} \ 241 ${qualdir_list:N${RELDIR}.*:N${RELDIR}/*} 242 243# We only consider things below $RELDIR/ if they have a makefile. 244# This is the same test that _DIRDEP_USE applies. 245# We have do a double test with dirdep_list as it _may_ contain 246# qualified dirs - if we got anything from a stage dir. 247# qualdir_list we know are all qualified. 248# It would be nice do peform this check for all of DIRDEPS, 249# but we cannot assume that all of the tree is present, 250# in fact we can only assume that RELDIR is. 251DIRDEPS += \ 252 ${dirdep_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/$d/$m):?$d:${exists(${SRCTOP}/${d:R}/$m):?$d:}}@}@} \ 253 ${qualdir_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/${d:R}/$m):?$d:}@}@} 254 255DIRDEPS := ${DIRDEPS:${GENDIRDEPS_FILTER:UNno:ts:}:C,//+,/,g:O:u} 256 257.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 258.info ${RELDIR}: M2D_OBJROOTS=${M2D_OBJROOTS} 259.info ${RELDIR}: dir_list='${dir_list}' 260.info ${RELDIR}: dpadd_dir_list='${dpadd_dir_list}' 261.info ${RELDIR}: dirdep_list='${dirdep_list}' 262.info ${RELDIR}: qualdir_list='${qualdir_list}' 263.info ${RELDIR}: SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS}' 264.info ${RELDIR}: GENDIRDEPS_FILTER='${GENDIRDEPS_FILTER}' 265.info ${RELDIR}: FORCE_DPADD='${DPADD}' 266.info ${RELDIR}: DIRDEPS='${DIRDEPS}' 267.endif 268 269# SRC_DIRDEPS is for checkout logic 270src_dirdep_list = \ 271 ${dir_list:M${SRCTOP}/*:S,${SRCTOP}/,,} 272 273SRC_DIRDEPS = \ 274 ${src_dirdep_list:N${RELDIR}:N${RELDIR}/*:C,(/h)/.*,,} 275 276SRC_DIRDEPS := ${SRC_DIRDEPS:${GENDIRDEPS_SRC_FILTER:UN/*:ts:}:C,//+,/,g:O:u} 277 278# if you want to capture SRC_DIRDEPS in .MAKE.DEPENDFILE put 279# SRC_DIRDEPS_FILE = ${_DEPENDFILE} 280# in local.gendirdeps.mk 281.if ${SRC_DIRDEPS_FILE:Uno:tl} != "no" 282ECHO_SRC_DIRDEPS = echo 'SRC_DIRDEPS = \'; echo '${SRC_DIRDEPS:@d@ $d \\${.newline}@}'; echo; 283 284.if ${SRC_DIRDEPS_FILE:T} == ${_DEPENDFILE:T} 285_include_src_dirdeps = ${ECHO_SRC_DIRDEPS} 286.else 287all: ${SRC_DIRDEPS_FILE} 288.if !target(${SRC_DIRDEPS_FILE}) 289${SRC_DIRDEPS_FILE}: ${META_FILES} ${_this} ${META2DEPS} 290 @(${ECHO_SRC_DIRDEPS}) > $@ 291.endif 292.endif 293.endif 294_include_src_dirdeps ?= 295 296all: ${_DEPENDFILE} 297 298# if this is going to exist it would be there by now 299.if !exists(.depend) 300CAT_DEPEND = /dev/null 301.endif 302CAT_DEPEND ?= .depend 303 304.if !empty(_DIRDEPS) && ${DIRDEPS} != ${_DIRDEPS} 305# we may have changed a filter 306.PHONY: ${_DEPENDFILE} 307.endif 308 309# 'cat .depend' should suffice, but if we are mixing build modes 310# .depend may contain things we don't want. 311# The sed command at the end of the stream, allows for the filters 312# to output _{VAR} tokens which we will turn into proper ${VAR} references. 313${_DEPENDFILE}: ${CAT_DEPEND:M.depend} ${META_FILES:O:u:@m@${exists($m):?$m:}@} ${_this} ${META2DEPS} 314 @(${GENDIRDEPS_HEADER} echo '# Autogenerated - do NOT edit!'; echo; \ 315 echo 'DIRDEPS = \'; \ 316 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 317 ${_include_src_dirdeps} \ 318 echo '.include <dirdeps.mk>'; \ 319 echo; \ 320 echo '.if $${DEP_RELDIR} == $${_DEP_RELDIR}'; \ 321 echo '# local dependencies - needed for -jN in clean tree'; \ 322 [ -s ${CAT_DEPEND} ] && { grep : ${CAT_DEPEND} | grep -v '[/\\]'; }; \ 323 echo '.endif' ) | sed 's,_\([{(]\),$$\1,g' > $@.new${.MAKE.PID} 324 @${InstallNew}; InstallNew -s $@.new${.MAKE.PID} 325 326.endif # meta2deps failed 327.elif !empty(SUBDIR) 328 329DIRDEPS := ${SUBDIR:S,^,${RELDIR}/,:O:u} 330 331all: ${_DEPENDFILE} 332 333${_DEPENDFILE}: ${MAKEFILE} ${_this} 334 @(${GENDIRDEPS_HEADER} echo '# Autogenerated - do NOT edit!'; echo; \ 335 echo 'DIRDEPS = \'; \ 336 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 337 echo '.include <dirdeps.mk>'; \ 338 echo ) | sed 's,_\([{(]\),$$\1,g' > $@.new 339 @${InstallNew}; InstallNew $@.new 340 341.else 342 343# nothing to do 344all ${_DEPENDFILE}: 345 346.endif 347${_DEPENDFILE}: .PRECIOUS 348