1# $Id: gendirdeps.mk,v 1.12 2013/02/10 19:59:10 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_objroot ?= ${_OBJROOT:tA} 55 56_this = ${.PARSEDIR}/${.PARSEFILE} 57 58# remember what to make 59_DEPENDFILE := ${_CURDIR}/${.MAKE.DEPENDFILE:T} 60 61# We do _not_ want to read our own output! 62.MAKE.DEPENDFILE = /dev/null 63 64# caller should have set this 65META_FILES ?= ${.MAKE.META.FILES} 66 67.if !empty(META_FILES) 68 69.if ${.MAKE.LEVEL} > 0 && !empty(GENDIRDEPS_FILTER) 70# so we can compare below 71.-include <${_DEPENDFILE}> 72# yes, I mean :U with no value 73_DIRDEPS := ${DIRDEPS:U:O:u} 74.endif 75 76META_FILES := ${META_FILES:T:O:u} 77.export META_FILES 78 79# pickup customizations 80.-include "local.gendirdeps.mk" 81 82# these are actually prefixes that we'll skip 83# they should all be absolute paths 84SKIP_GENDIRDEPS ?= 85.if !empty(SKIP_GENDIRDEPS) 86_skip_gendirdeps = egrep -v '^(${SKIP_GENDIRDEPS:O:u:ts|})' | 87.else 88_skip_gendirdeps = 89.endif 90 91# this (*should* be set in meta.sys.mk) 92# is the script that extracts what we want. 93META2DEPS ?= ${.PARSEDIR}/meta2deps.sh 94META2DEPS := ${META2DEPS} 95 96.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" && ${DEBUG_GENDIRDEPS:Uno:Mmeta2d*} != "" 97_time = time 98_sh_x = sh -x 99_py_d = -ddd 100.else 101_time = 102_sh_x = 103_py_d = 104.endif 105 106.if ${META2DEPS:E} == "py" 107# we can afford to do this all the time. 108DPDEPS ?= no 109META2DEPS_CMD = ${_time} ${PYTHON} ${META2DEPS} ${_py_d} \ 110 -R ${RELDIR} -H ${HOST_TARGET} \ 111 ${M2D_OBJROOTS:O:u:@o@-O $o@} 112 113.if ${DPDEPS:tl} != "no" 114META2DEPS_CMD += -D ${DPDEPS} 115.endif 116 117M2D_OBJROOTS += ${OBJTOP}/ ${_OBJROOT} ${_objroot} 118.if defined(SB_OBJROOT) 119M2D_OBJROOTS += ${SB_OBJROOT} 120.endif 121.if ${.MAKE.DEPENDFILE_PREFERENCE:U${.MAKE.DEPENDFILE}:M*.${MACHINE}} == "" 122# meta2deps.py only groks objroot 123# so we need to give it what it expects 124# and tell it not to add machine qualifiers 125META2DEPS_ARGS += MACHINE=none 126.endif 127.if defined(SB_BACKING_SB) 128META2DEPS_CMD += -S ${SB_BACKING_SB}/src 129M2D_OBJROOTS += ${SB_BACKING_SB}/${SB_OBJPREFIX} 130.endif 131META2DEPS_FILTER = sed 's,^src:,${SRCTOP}/,;s,^\([^/]\),${OBJTOP}/\1,' | 132.elif ${META2DEPS:E} == "sh" 133META2DEPS_CMD = ${_time} ${_sh_x} ${META2DEPS} \ 134 OBJTOP=${_objtop} SB_OBJROOT=${_objroot} 135.else 136META2DEPS_CMD ?= ${META2DEPS} 137.endif 138 139# we are only interested in the dirs 140# sepecifically those we read something from. 141# we canonicalize them to keep things simple 142# if we are using a split-fs sandbox, it gets a little messier. 143_objtop := ${_OBJTOP:tA} 144dir_list != cd ${_OBJDIR} && \ 145 ${META2DEPS_CMD} MACHINE=${MACHINE} \ 146 SRCTOP=${SRCTOP} RELDIR=${RELDIR} CURDIR=${_CURDIR} \ 147 ${META2DEPS_ARGS} \ 148 ${META_FILES:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 149 sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,' 150 151.if ${dir_list:M*ERROR\:*} != "" 152.warning ${dir_list:tW:C,.*(ERROR),\1,} 153.warning Skipping ${_DEPENDFILE:S,${SRCTOP}/,,} 154# we are not going to update anything 155.else 156 157.if !empty(DPADD) 158_nonlibs := ${DPADD:T:Nlib*:N*include} 159.if !empty(_nonlibs) 160ddep_list = 161.for f in ${_nonlibs:@x@${DPADD:M*/$x}@:tA} 162.if exists($f.dirdep) 163ddep_list += $f.dirdep 164.elif exists(${f:H}.dirdep) 165ddep_list += ${f:H}.dirdep 166.else 167dir_list += ${f:H} 168.endif 169.endfor 170.if !empty(ddep_list) 171ddeps != cat ${ddep_list:O:u} | ${META2DEPS_FILTER} ${_skip_gendirdeps} \ 172 sed 's,//*$$,,;s,\.${HOST_TARGET}$$,.host,' 173dir_list += ${ddeps} 174.endif 175.endif 176.endif 177 178# DIRDEPS represent things that had to have been built first 179# so they should all be undir OBJTOP. 180# Note that ${_OBJTOP}/bsd/include/machine will get reported 181# to us as $SRCTOP/bsd/sys/$MACHINE_ARCH/include meaning we 182# will want to visit bsd/include 183# so we add 184# ${"${dir_list:M*bsd/sys/${MACHINE_ARCH}/include}":?bsd/include:} 185# to GENDIRDEPS_DIR_LIST_XTRAS 186dirdep_list = \ 187 ${dir_list:M${_objtop}*/*:C,${_objtop}[^/]*/,,} \ 188 ${GENDIRDEPS_DIR_LIST_XTRAS} 189 190# sort longest first 191M2D_OBJROOTS := ${M2D_OBJROOTS:O:u:[-1..1]} 192 193# anything we use from an object dir other than ours 194# needs to be qualified with its .<machine> suffix 195# (we used the pseudo machine "host" for the HOST_TARGET). 196skip_ql= ${SRCTOP}* ${_objtop}* 197.for o in ${M2D_OBJROOTS:${skip_ql:${M_ListToSkip}}} 198qualdir_list += \ 199 ${dir_list:${skip_ql:${M_ListToSkip}}:M$o*/*/*:C,$o([^/]+)/(.*),\2.\1,:S,.${HOST_TARGET},.host,} 200skip_ql+= $o* 201.endfor 202 203dirdep_list := ${dirdep_list:O:u} 204qualdir_list := ${qualdir_list:N*.${MACHINE}:O:u} 205 206DIRDEPS = \ 207 ${dirdep_list:N${RELDIR}:N${RELDIR}/*} \ 208 ${qualdir_list:N${RELDIR}.*:N${RELDIR}/*} 209 210# We only consider things below $RELDIR/ if they have a makefile. 211# This is the same test that _DIRDEPS_USE applies. 212# We have do a double test with dirdep_list as it _may_ contain 213# qualified dirs - if we got anything from a stage dir. 214# qualdir_list we know are all qualified. 215# It would be nice do peform this check for all of DIRDEPS, 216# but we cannot assume that all of the tree is present, 217# in fact we can only assume that RELDIR is. 218DIRDEPS += \ 219 ${dirdep_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/$d/$m):?$d:${exists(${SRCTOP}/${d:R}/$m):?$d:}}@}@} \ 220 ${qualdir_list:M${RELDIR}/*:@d@${.MAKE.MAKEFILE_PREFERENCE:@m@${exists(${SRCTOP}/${d:R}/$m):?$d:}@}@} 221 222DIRDEPS := ${DIRDEPS:${GENDIRDEPS_FILTER:UNno:ts:}:O:u} 223 224.if ${DEBUG_GENDIRDEPS:Uno:@x@${RELDIR:M$x}@} != "" 225.info ${RELDIR}: M2D_OBJROOTS=${M2D_OBJROOTS} 226.info ${RELDIR}: dir_list='${dir_list}' 227.info ${RELDIR}: dirdep_list='${dirdep_list}' 228.info ${RELDIR}: qualdir_list='${qualdir_list}' 229.info ${RELDIR}: SKIP_GENDIRDEPS='${SKIP_GENDIRDEPS}' 230.info ${RELDIR}: GENDIRDEPS_FILTER='${GENDIRDEPS_FILTER}' 231.info ${RELDIR}: FORCE_DPADD='${DPADD}' 232.info ${RELDIR}: DIRDEPS='${DIRDEPS}' 233.endif 234 235# SRC_DIRDEPS is for checkout logic 236src_dirdep_list = \ 237 ${dir_list:M${SRCTOP}/*:S,${SRCTOP}/,,} 238 239SRC_DIRDEPS = \ 240 ${src_dirdep_list:N${RELDIR}:N${RELDIR}/*:C,(/h)/.*,,} 241 242SRC_DIRDEPS := ${SRC_DIRDEPS:${GENDIRDEPS_SRC_FILTER:UN/*:ts:}:O:u} 243 244# if you want to capture SRC_DIRDEPS in .MAKE.DEPENDFILE put 245# SRC_DIRDEPS_FILE = ${_DEPENDFILE} 246# in local.gendirdeps.mk 247.if ${SRC_DIRDEPS_FILE:Uno:tl} != "no" 248ECHO_SRC_DIRDEPS = echo 'SRC_DIRDEPS = \'; echo '${SRC_DIRDEPS:@d@ $d \\${.newline}@}'; echo; 249 250.if ${SRC_DIRDEPS_FILE:T} == ${_DEPENDFILE:T} 251_include_src_dirdeps = ${ECHO_SRC_DIRDEPS} 252.else 253all: ${SRC_DIRDEPS_FILE} 254.if !target(${SRC_DIRDEPS_FILE}) 255${SRC_DIRDEPS_FILE}: ${META_FILES} ${_this} ${META2DEPS} 256 @(${ECHO_SRC_DIRDEPS}) > $@ 257.endif 258.endif 259.endif 260_include_src_dirdeps ?= 261 262all: ${_DEPENDFILE} 263 264# if this is going to exist it would be there by now 265.if !exists(.depend) 266CAT_DEPEND = /dev/null 267.endif 268CAT_DEPEND ?= .depend 269 270.if !empty(_DIRDEPS) && ${DIRDEPS} != ${_DIRDEPS} 271# we may have changed a filter 272.PHONY: ${_DEPENDFILE} 273.endif 274 275# 'cat .depend' should suffice, but if we are mixing build modes 276# .depend may contain things we don't want. 277# The sed command at the end of the stream, allows for the filters 278# to output _{VAR} tokens which we will turn into proper ${VAR} references. 279${_DEPENDFILE}: ${CAT_DEPEND:M.depend} ${META_FILES:O:u:@m@${exists($m):?$m:}@} ${_this} ${META2DEPS} 280 @(echo '# Autogenerated - do NOT edit!'; echo; \ 281 echo 'DEP_RELDIR := $${_PARSEDIR:S,$${SRCTOP}/,,}'; echo; \ 282 echo 'DIRDEPS = \'; \ 283 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 284 ${_include_src_dirdeps} \ 285 echo '.include <dirdeps.mk>'; \ 286 echo; \ 287 echo '.if $${DEP_RELDIR} == $${_DEP_RELDIR}'; \ 288 echo '# local dependencies - needed for -jN in clean tree'; \ 289 [ -s ${CAT_DEPEND} ] && { grep : ${CAT_DEPEND} | grep -v '[/\\]'; }; \ 290 echo '.endif' ) | sed 's,_\([{(]\),$$\1,g' > $@.new${.MAKE.PID} 291 @${InstallNew}; InstallNew -s $@.new${.MAKE.PID} 292 293.endif # meta2deps failed 294.elif !empty(SUBDIR) 295 296DIRDEPS := ${SUBDIR:S,^,${RELDIR}/,:O:u} 297 298all: ${_DEPENDFILE} 299 300${_DEPENDFILE}: ${MAKEFILE} ${_this} 301 @(echo '# Autogenerated - do NOT edit!'; echo; \ 302 echo 'DEP_RELDIR := $${_PARSEDIR:S,$${SRCTOP}/,,}'; echo; \ 303 echo 'DIRDEPS = \'; \ 304 echo '${DIRDEPS:@d@ $d \\${.newline}@}'; echo; \ 305 echo '.include <dirdeps.mk>'; \ 306 echo ) | sed 's,_\([{(]\),$$\1,g' > $@.new 307 @${InstallNew}; InstallNew $@.new 308 309.else 310 311# nothing to do 312all ${_DEPENDFILE}: 313 314.endif 315${_DEPENDFILE}: .PRECIOUS 316