1# $Id: gendirdeps.mk,v 1.33 2016/10/11 22:37:28 sjg Exp $ 2 3# Copyright (c) 2010-2013, Juniper Networks, Inc. 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 27# 28# This makefile [re]generates ${.MAKE.DEPENDFILE} 29# 30 31.include <install-new.mk> 32 33# Assumptions: 34# RELDIR is the relative path from ${SRCTOP} to ${_CURDIR} 35# (SRCTOP is ${SB}/src) 36# _CURDIR is the absolute version of ${.CURDIR} 37# _OBJDIR is the absolute version of ${.OBJDIR} 38# _objroot is realpath of ${_OBJTOP} without ${MACHINE} 39# this may be different from _OBJROOT if $SB/obj is a 40# symlink to another filesystem. 41# _objroot must be a prefix match for _objtop 42 43.MAIN: all 44 45# keep this simple 46.MAKE.MODE = compat 47 48all: 49 50_CURDIR ?= ${.CURDIR} 51_OBJDIR ?= ${.OBJDIR} 52_OBJTOP ?= ${OBJTOP} 53_OBJROOT ?= ${OBJROOT:U${_OBJTOP}} 54.if ${_OBJROOT:M*/} 55_slash=/ 56.else 57_slash= 58.endif 59_objroot ?= ${_OBJROOT:tA}${_slash} 60 61_this = ${.PARSEDIR}/${.PARSEFILE} 62 63# remember what to make 64_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 65 66# We do _not_ want to read our own output! 67.MAKE.DEPENDFILE = /dev/null 68 69# caller should have set this 70META_FILES ?= ${.MAKE.META.FILES} 71 72.if !empty(META_FILES) 73 74.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 75# so we can compare below 76.-include <${_DEPENDFILE}> 77# yes, I mean :U with no value 78_DIRDEPS := ${DIRDEPS:U:O:u} 79.endif 80 81META_FILES := ${META_FILES:T:O:u} 82.export META_FILES 83 84# pickup customizations 85.-include <local.gendirdeps.mk> 86 87# these are actually prefixes that we'll skip 88# they should all be absolute paths 89SKIP_GENDIRDEPS ?= 90.if !empty(SKIP_GENDIRDEPS) 91_skip_gendirdeps = egrep -v '^(${SKIP_GENDIRDEPS:O:u:ts|})' | 92.else 93_skip_gendirdeps = 94.endif 95 96# Below we will turn _{VAR} into ${VAR} which keeps this simple 97# GENDIRDEPS_FILTER_DIR_VARS is a list of dirs to be substiuted for. 98# GENDIRDEPS_FILTER_VARS is more general. 99# In each case order matters. 100.if !empty(GENDIRDEPS_FILTER_DIR_VARS) 101GENDIRDEPS_FILTER += ${GENDIRDEPS_FILTER_DIR_VARS:@v@S,${$v},_{${v}},@} 102.endif 103.if !empty(GENDIRDEPS_FILTER_VARS) 104GENDIRDEPS_FILTER += ${GENDIRDEPS_FILTER_VARS:@v@S,/${$v}/,/_{${v}}/,@:NS,//,*:u} 105.endif 106 107# this (*should* be set in meta.sys.mk) 108# is the script that extracts what we want. 109META2DEPS ?= ${.PARSEDIR}/meta2deps.sh 110META2DEPS := ${META2DEPS} 111 112.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" && ${DEBUG_GENDIRDEPS:Uno:Mmeta2d*} != "" 113_time = time 114_sh_x = sh -x 115_py_d = -ddd 116.else 117_time = 118_sh_x = 119_py_d = 120.endif 121 122.if ${META2DEPS:E} == "py" 123# we can afford to do this all the time. 124DPDEPS ?= no 125META2DEPS_CMD = ${_time} ${PYTHON} ${META2DEPS} ${_py_d} 126.if ${DPDEPS:tl} != "no" 127META2DEPS_CMD += -D ${DPDEPS} 128.endif 129META2DEPS_FILTER = sed 's,^src:,${SRCTOP}/,;s,^\([^/]\),${OBJTOP}/\1,' | 130.elif ${META2DEPS:E} == "sh" 131META2DEPS_CMD = ${_time} ${_sh_x} ${META2DEPS} OBJTOP=${_OBJTOP} 132.else 133META2DEPS_CMD ?= ${META2DEPS} 134.endif 135 136.if ${TARGET_OBJ_SPEC:U${MACHINE}} != ${MACHINE} 137META2DEPS_CMD += -T ${TARGET_OBJ_SPEC} 138.endif 139META2DEPS_CMD += \ 140 -R ${RELDIR} -H ${HOST_TARGET} \ 141 ${M2D_OBJROOTS:O:u:@o@-O $o@} \ 142 ${M2D_EXCLUDES:O:u:@o@-X $o@} \ 143 144 145M2D_OBJROOTS += ${OBJTOP} ${_OBJROOT} ${_objroot} 146.if defined(SB_OBJROOT) 147M2D_OBJROOTS += ${SB_OBJROOT} 148.endif 149.if defined(STAGE_ROOT) 150M2D_OBJROOTS += ${STAGE_ROOT} 151.endif 152.if ${.MAKE.DEPENDFILE_PREFERENCE:U${.MAKE.DEPENDFILE}:M*.${MACHINE}} == "" 153# meta2deps.py only groks objroot 154# so we need to give it what it expects 155# and tell it not to add machine qualifiers 156META2DEPS_ARGS += MACHINE=none 157.endif 158.if defined(SB_BACKING_SB) 159META2DEPS_CMD += -S ${SB_BACKING_SB}/src 160M2D_OBJROOTS += ${SB_BACKING_SB}/${SB_OBJPREFIX} 161.endif 162 163# we are only interested in the dirs 164# specifically those we read something from. 165# we canonicalize them to keep things simple 166# if we are using a split-fs sandbox, it gets a little messier. 167_objtop := ${_OBJTOP:tA} 168dir_list != cd ${_OBJDIR} && \ 169 ${META2DEPS_CMD} MACHINE=${MACHINE} \ 170 SRCTOP=${SRCTOP} RELDIR=${RELDIR} CURDIR=${_CURDIR} \ 171 ${META2DEPS_ARGS} \ 172 ${META_FILES:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 173 sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,' 174 175.if ${dir_list:M*ERROR\:*} != "" 176.warning ${dir_list:tW:C,.*(ERROR),\1,} 177.warning Skipping ${_DEPENDFILE:S,${SRCTOP}/,,} 178# we are not going to update anything 179.else 180dpadd_dir_list= 181.if !empty(DPADD) 182_nonlibs := ${DPADD:T:Nlib*:N*include} 183.if !empty(_nonlibs) 184ddep_list = 185.for f in ${_nonlibs:@x@${DPADD:M*/$x}@} 186.if exists($f.dirdep) 187ddep_list += $f.dirdep 188.elif exists(${f:H}.dirdep) 189ddep_list += ${f:H}.dirdep 190.else 191dir_list += ${f:H:tA} 192dpadd_dir_list += ${f:H:tA} 193.endif 194.endfor 195.if !empty(ddep_list) 196ddeps != cat ${ddep_list:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 197 sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,;s,\.${MACHINE}$$,,' 198 199.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 200.info ${RELDIR}: raw_dir_list='${dir_list}' 201.info ${RELDIR}: ddeps='${ddeps}' 202.endif 203dir_list += ${ddeps} 204.endif 205.endif 206.endif 207 208# DIRDEPS represent things that had to have been built first 209# so they should all be undir OBJTOP. 210# Note that ${_OBJTOP}/bsd/include/machine will get reported 211# to us as $SRCTOP/bsd/sys/$MACHINE_ARCH/include meaning we 212# will want to visit bsd/include 213# so we add 214# ${"${dir_list:M*bsd/sys/${MACHINE_ARCH}/include}":?bsd/include:} 215# to GENDIRDEPS_DIR_LIST_XTRAS 216_objtops = ${OBJTOP} ${_OBJTOP} ${_objtop} 217_objtops := ${_objtops:O:u} 218dirdep_list = \ 219 ${_objtops:@o@${dir_list:M$o*/*:C,$o[^/]*/,,}@} \ 220 ${GENDIRDEPS_DIR_LIST_XTRAS} 221 222# sort longest first 223M2D_OBJROOTS := ${M2D_OBJROOTS:O:u:[-1..1]} 224 225# anything we use from an object dir other than ours 226# needs to be qualified with its .<machine> suffix 227# (we used the pseudo machine "host" for the HOST_TARGET). 228skip_ql= ${SRCTOP}* ${_objtops:@o@$o*@} 229.for o in ${M2D_OBJROOTS:${skip_ql:${M_ListToSkip}}} 230# we need := so only skip_ql to this point applies 231ql.$o := ${dir_list:${skip_ql:${M_ListToSkip}}:M$o*/*/*:C,$o([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,} 232qualdir_list += ${ql.$o} 233.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 234.info ${RELDIR}: o=$o ${ql.$o qualdir_list:L:@v@$v=${$v}@} 235.endif 236skip_ql+= $o* 237.endfor 238 239dirdep_list := ${dirdep_list:O:u} 240qualdir_list := ${qualdir_list:N*.${MACHINE}:O:u} 241 242DIRDEPS = \ 243 ${dirdep_list:N${RELDIR}:N${RELDIR}/*} \ 244 ${qualdir_list:N${RELDIR}.*:N${RELDIR}/*} 245 246# We only consider things below $RELDIR/ if they have a makefile. 247# This is the same test that _DIRDEP_USE applies. 248# We have do a double test with dirdep_list as it _may_ contain 249# qualified dirs - if we got anything from a stage dir. 250# qualdir_list we know are all qualified. 251# It would be nice do peform this check for all of DIRDEPS, 252# but we cannot assume that all of the tree is present, 253# in fact we can only assume that RELDIR is. 254DIRDEPS += \ 255 ${dirdep_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/$d/$m):?$d:${exists(${SRCTOP}/${d:R}/$m):?$d:}}@}@} \ 256 ${qualdir_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/${d:R}/$m):?$d:}@}@} 257 258DIRDEPS := ${DIRDEPS:${GENDIRDEPS_FILTER:UNno:ts:}:C,//+,/,g:O:u} 259 260.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 261.info ${RELDIR}: M2D_OBJROOTS=${M2D_OBJROOTS} 262.info ${RELDIR}: M2D_EXCLUDES=${M2D_EXCLUDES} 263.info ${RELDIR}: dir_list='${dir_list}' 264.info ${RELDIR}: dpadd_dir_list='${dpadd_dir_list}' 265.info ${RELDIR}: dirdep_list='${dirdep_list}' 266.info ${RELDIR}: qualdir_list='${qualdir_list}' 267.info ${RELDIR}: SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS}' 268.info ${RELDIR}: GENDIRDEPS_FILTER='${GENDIRDEPS_FILTER}' 269.info ${RELDIR}: FORCE_DPADD='${DPADD}' 270.info ${RELDIR}: DIRDEPS='${DIRDEPS}' 271.endif 272 273# SRC_DIRDEPS is for checkout logic 274src_dirdep_list = \ 275 ${dir_list:M${SRCTOP}/*:S,${SRCTOP}/,,} 276 277SRC_DIRDEPS = \ 278 ${src_dirdep_list:N${RELDIR}:N${RELDIR}/*:C,(/h)/.*,,} 279 280SRC_DIRDEPS := ${SRC_DIRDEPS:${GENDIRDEPS_SRC_FILTER:UN/*:ts:}:C,//+,/,g:O:u} 281 282# if you want to capture SRC_DIRDEPS in .MAKE.DEPENDFILE put 283# SRC_DIRDEPS_FILE = ${_DEPENDFILE} 284# in local.gendirdeps.mk 285.if ${SRC_DIRDEPS_FILE:Uno:tl} != "no" 286ECHO_SRC_DIRDEPS = echo 'SRC_DIRDEPS = \'; echo '${SRC_DIRDEPS:@d@ $d \\${.newline}@}'; echo; 287 288.if ${SRC_DIRDEPS_FILE:T} == ${_DEPENDFILE:T} 289_include_src_dirdeps = ${ECHO_SRC_DIRDEPS} 290.else 291all: ${SRC_DIRDEPS_FILE} 292.if !target(${SRC_DIRDEPS_FILE}) 293${SRC_DIRDEPS_FILE}: ${META_FILES} ${_this} ${META2DEPS} 294 @(${ECHO_SRC_DIRDEPS}) > $@ 295.endif 296.endif 297.endif 298_include_src_dirdeps ?= 299 300all: ${_DEPENDFILE} 301 302# if this is going to exist it would be there by now 303.if !exists(.depend) 304CAT_DEPEND = /dev/null 305.endif 306CAT_DEPEND ?= .depend 307 308.if !empty(_DIRDEPS) && ${DIRDEPS} != ${_DIRDEPS} 309# we may have changed a filter 310.PHONY: ${_DEPENDFILE} 311.endif 312 313# 'cat .depend' should suffice, but if we are mixing build modes 314# .depend may contain things we don't want. 315# The sed command at the end of the stream, allows for the filters 316# to output _{VAR} tokens which we will turn into proper ${VAR} references. 317${_DEPENDFILE}: .NOMETA ${CAT_DEPEND:M.depend} ${META_FILES:O:u:@m@${exists($m):?$m:}@} ${_this} ${META2DEPS} 318 @(${GENDIRDEPS_HEADER} echo '# Autogenerated - do NOT edit!'; echo; \ 319 echo 'DIRDEPS = \'; \ 320 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 321 ${_include_src_dirdeps} \ 322 echo '.include <dirdeps.mk>'; \ 323 echo; \ 324 echo '.if $${DEP_RELDIR} == $${_DEP_RELDIR}'; \ 325 echo '# local dependencies - needed for -jN in clean tree'; \ 326 [ -s ${CAT_DEPEND} ] && { grep : ${CAT_DEPEND} | grep -v '[/\\]'; }; \ 327 echo '.endif' ) | sed 's,_\([{(]\),$$\1,g' > $@.new${.MAKE.PID} 328 @${InstallNew}; InstallNew -s $@.new${.MAKE.PID} 329 330.endif # meta2deps failed 331.elif !empty(SUBDIR) 332 333DIRDEPS := ${SUBDIR:S,^,${RELDIR}/,:O:u} 334 335all: ${_DEPENDFILE} 336 337${_DEPENDFILE}: .NOMETA ${MAKEFILE} ${_this} 338 @(${GENDIRDEPS_HEADER} echo '# Autogenerated - do NOT edit!'; echo; \ 339 echo 'DIRDEPS = \'; \ 340 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 341 echo '.include <dirdeps.mk>'; \ 342 echo ) | sed 's,_\([{(]\),$$\1,g' > $@.new 343 @${InstallNew}; InstallNew $@.new 344 345.else 346 347# nothing to do 348all ${_DEPENDFILE}: 349 350.endif 351${_DEPENDFILE}: .PRECIOUS 352